initial v2.4 GIT import

844 files changed, 445157 insertions, 0 deletions

diff --git a/fs/ChangeLog b/fs/ChangeLog
new file mode 100644
index 00000000000000..9d9b0cace370a6
--- /dev/null
+++ b/fs/ChangeLog
@@ -0,0 +1,159 @@
+Mon Oct 24 23:27:42 1994  Theodore Y. Ts'o  (tytso@rt-11)
+
+	* fcntl.c (sys_fcntl): Liberalize security checks which Alan Cox
+		put in.
+
+Thu Oct 20 23:44:22 1994  Theodore Y. Ts'o  (tytso@rt-11)
+
+	* fcntl.c (sys_fcntl): Add more of a security check to the
+		F_SETOWN fcntl().
+
+[Tons of changes missed, indeed. This list is worth restarting since
+at least some fixes WILL break third-party filesystems. Sorry, but
+there was no other way to fix rmdir/rename deadlock, for one.]
+
+Wed Dec  2 (Linus, fill the rest, please)
+
+	* namei.c (do_rmdir) and rmdir method in filesystems:
+		Locking of directory we remove was taken to VFS.
+		See comments in do_rmdir(). Unfixed filesystems
+		will bloody likely deadlock in rmdir().
+
+Thu Dec  3 17:25:31 1998  Al Viro (viro@math.psu.edu)
+
+	* namei.c (do_rmdir):
+		Reject non-directories here.
+		Two (probably) obsolete checks moved here too: we fail if
+		the directory we remove is the same as parent (BUG: we
+		serve mountpoints later) or if it lives on a different
+		device.
+	* sysv/namei.c (sysv_rmdir):	See sysv/CHANGES
+
+Fri Dec  4 00:54:12 1998  AV
+
+	* namei.c (check_sticky): New function check_sticky(dir, inode).
+		If dir is sticky check whether we can unlink/rmdir/rename
+		the inode. Returns 1 if we can't. If dir isn't sticky -
+		return 0 (i.e. no objections). Some filesystems require
+		suser() here; some are fine with CAP_FOWNER. The later
+		seems more reasonable.
+	* namei.c (do_rmdir):
+		Moved the check for sticky bit here.
+	* affs/{inode,namei}.c:
+		All AFFS directories have sticky semantics (i.e. non-owner
+		having write permisssions on directory can unlink/rmdir/rename
+		only the files he owns), but AFFS didn't set S_ISVTX on them.
+		Fixed. NB: maybe this behaviour should be controlled by mount
+		option. Obvious values being 'sticky' (current behaviour),
+		'nonsticky' (normal behaviour) and maybe some play on 'D'
+		permissions bit. FIXME.
+	* qnx4/namei.c (qnx4_rmdir):
+		Plugged inode leak.
+	* ufs/namei.c (ufs_rmdir):
+		Changed handling of busy directory to new scheme.
+
+Fri Dec  4 10:30:58 1998  AV
+
+	* namei.c (VFS_rmdir): New function. It gets inode of the parent and
+		dentry of the victim, does all checks and applies fs-specific
+		rmdir() method. It should be called with semaphores down
+		on both the victim and its parent and with bumped d_count on
+		victim (see comments in do_rmdir).
+	* include/linux/fs.h: Added VFS_rmdir
+	* kernel/ksyms.c: Added VFS_rmdir to export list (for NFSD).
+	* nfsd/vfs.c: Fixed rmdir handling.
+
+Tue Dec  8 05:55:08 1998  AV
+	* vfat/namei.c: Fixed the bug in vfat_rename() introduced in the
+		first round of rmdir fixes.
+
+Wed Dec  9 03:06:10 1998  AV
+	* namei.c (do_rename): part of fs-independent checks had been moved
+		here (sticky bit handling, type mismatches). Cases of
+		the source or target being append-only or immutable also went
+		here - if we check it for parent we could as well do it for
+		children.
+	* {affs,ext2,minix,sysv,ufs}/namei.c (do_*_rename):
+		Removed tests that went to VFS, it simplified the code big way.
+		Fixed a race in check for empty target - we should check for
+		extra owners _before_ checking for emptiness, not after it.
+	* {ext2,ufs}/namei.c (do_*_rename):
+		VERY nasty bug shot: if somebody mkdired /tmp/cca01234, went
+		there, rmdired '.', waited till somebody created a file with
+		the same name and said mv . /tmp/goodbye_sticky_bit... Well,
+		goodbye sticky bit. Down, not across!
+	* {minix,sysv}/namei.c (do_*_rename):
+		Incorrect check for other owners (i_count instead of d_count).
+		Fixed.
+	* vfat: Looks like the changes above fixed a bug in VFAT - this beast
+		used to allow renaming file over directory and vice versa.
+
+Wed Dec  9 08:00:27 1998  AV
+	* namei.c (VFS_rename): New function. It gets the same arguments as
+		->rename() method, does all checks and applies fs-specific
+		rmdir() method. It should be called with semaphores down
+		on both parents.
+	* include/linux/fs.h: Added VFS_rename
+	* kernel/ksyms.c: Added VFS_rename to export list (for NFSD).
+	* nfsd/vfs.c: Changed rename handling (switched to VFS_rename).
+
+Wed Dec  9 18:16:27 1998  AV
+	* namei.c (do_unlink): handling of sticky bit went here.
+	* {affs,ext2,minix,qnx4,sysv,ufs}/namei.c (*_unlink):
+		removed handling of sticky bit.
+	* qnx4/namei.c (qnx4_unlink):
+		Yet another inode leak. Fixed.
+
+Thu Dec 10 04:55:26 1998  AV
+	* {ext2,minix,sysv,ufs}/namei.c (*_mknod):
+		removed meaningless code handling attempts to mknod symlinks
+		and directories. VFS protects us from _that_ and if this code
+		would ever be called we'ld get a filesystem corruption.
+
+Thu Dec 10 16:58:50 1998  AV
+	* namei.c (do_rename): Fixed dentry leak that had been introduced by
+		the first round of rmdir fixes.
+
+Fri Dec 11 14:57:17 1998  AV
+	* msdos/namei.c (msdos_rmdir): Fixed race in emptiness check.
+
+Sat Dec 12 19:59:57 1998  AV
+	* msdos/namei.c (msdos_mkdir): Fixed the evil breakage introduced by
+		the changes of rmdir locking scheme. We shouldn't call
+		msdos_rmdir from there.
+
+Sun Dec 13 02:05:16 1998  AV
+	* namei.c (do_unlink):
+		Added new function: vfs_unlink, with the same arguments as
+		->unlink() method.
+	* kernel/ksyms.c: Made it exported.
+	* include/linux/fs.h: Added prototype.
+	* nfsd/vfs.c: Changed handling of unlink (switched to vfs_unlink)
+	* {ext2,ufs}/namei.c (*_unlink): moved handling of imm./append-only to
+		VFS.
+
+Wed Dec 16 06:10:04 1998  AV
+	* namei.c (may_create, may_delete): New inline functions.
+		They check whether creation/deletion is permitted.
+		Checks from other places of namei.c went there.
+		Looks like originally I misread permission-related stuff
+		both here and in nfsd. In particular, checks for
+		immutable are done in permission(). D'oh.
+	* unlink on directory should return -EISDIR, not -EPERM as it used to
+		do. Fixed.
+	* rmdir of immutable/append-only directory shouldn't be allowed. Fixed.
+
+Remains unfixed:
+	* rename's handling of races is, erm, not optimal. Looks like I know
+		what to do, but this thing needs some more cleanup - we can
+		take care of almost all races in VFS and be much more graceful
+		wrt locking. Moreover, it would give strong lookup atomicity.
+		But it's a lot of changes to lookup and dcache code, so it will
+		go after the fs drivers' cleanup.
+	* affs allows HARD links to directories. VFS is, to put it politely,
+		not too ready to cope with _that_. And I'm not sure it should
+		be - looks like they are pretty much similar to symlinks.
+	* truncate doesn't give a damn about IO errors and disk overflows (on
+		braindead filesystems). I've submitted a patch to Linus, but
+		looks like it wasn't applied.
+	* msdos: shouldn't we treat SYS as IMMUTABLE? Makes sense, IMHO.
diff --git a/fs/Config.in b/fs/Config.in
new file mode 100644
index 00000000000000..04d4d640168730
--- /dev/null
+++ b/fs/Config.in
@@ -0,0 +1,179 @@
+#
+# File system configuration
+#
+mainmenu_option next_comment
+comment 'File systems'
+
+bool 'Quota support' CONFIG_QUOTA
+dep_tristate '  VFS v0 quota format support' CONFIG_QFMT_V2 $CONFIG_QUOTA
+
+tristate 'Kernel automounter support' CONFIG_AUTOFS_FS
+tristate 'Kernel automounter version 4 support (also supports v3)' CONFIG_AUTOFS4_FS
+
+tristate 'Reiserfs support' CONFIG_REISERFS_FS
+dep_mbool '  Enable reiserfs debug mode' CONFIG_REISERFS_CHECK $CONFIG_REISERFS_FS
+dep_mbool '  Stats in /proc/fs/reiserfs' CONFIG_REISERFS_PROC_INFO $CONFIG_REISERFS_FS
+
+dep_tristate 'ADFS file system support (EXPERIMENTAL)' CONFIG_ADFS_FS $CONFIG_EXPERIMENTAL
+dep_mbool '  ADFS write support (DANGEROUS)' CONFIG_ADFS_FS_RW $CONFIG_ADFS_FS $CONFIG_EXPERIMENTAL
+
+dep_tristate 'Amiga FFS file system support (EXPERIMENTAL)' CONFIG_AFFS_FS $CONFIG_EXPERIMENTAL
+
+dep_tristate 'Apple HFS file system support (EXPERIMENTAL)' CONFIG_HFS_FS $CONFIG_EXPERIMENTAL
+
+dep_tristate 'Apple HFS+ (Extended HFS) file system support (EXPERIMENTAL)' CONFIG_HFSPLUS_FS $CONFIG_EXPERIMENTAL
+
+dep_tristate 'BeOS file systemv(BeFS) support (read only) (EXPERIMENTAL)' CONFIG_BEFS_FS $CONFIG_EXPERIMENTAL
+dep_mbool '  Debug Befs' CONFIG_BEFS_DEBUG $CONFIG_BEFS_FS
+
+dep_tristate 'BFS file system support (EXPERIMENTAL)' CONFIG_BFS_FS $CONFIG_EXPERIMENTAL
+
+tristate 'Ext3 journalling file system support' CONFIG_EXT3_FS
+# CONFIG_JBD could be its own option (even modular), but until there are
+# other users than ext3, we will simply make it be the same as CONFIG_EXT3_FS
+# dep_tristate '  Journal Block Device support (JBD for ext3)' CONFIG_JBD $CONFIG_EXT3_FS
+define_bool CONFIG_JBD $CONFIG_EXT3_FS
+dep_mbool '  JBD (ext3) debugging support' CONFIG_JBD_DEBUG $CONFIG_JBD
+
+# msdos file systems
+tristate 'DOS FAT fs support' CONFIG_FAT_FS
+dep_tristate '  MSDOS fs support' CONFIG_MSDOS_FS $CONFIG_FAT_FS
+dep_tristate '    UMSDOS: Unix-like file system on top of standard MSDOS fs' CONFIG_UMSDOS_FS $CONFIG_MSDOS_FS
+dep_tristate '  VFAT (Windows-95) fs support' CONFIG_VFAT_FS $CONFIG_FAT_FS
+dep_tristate 'EFS file system support (read only) (EXPERIMENTAL)' CONFIG_EFS_FS $CONFIG_EXPERIMENTAL
+dep_tristate 'Journalling Flash File System (JFFS) support' CONFIG_JFFS_FS $CONFIG_MTD
+if [ "$CONFIG_JFFS_FS" = "y" -o "$CONFIG_JFFS_FS" = "m" ] ; then
+   int 'JFFS debugging verbosity (0 = quiet, 3 = noisy)' CONFIG_JFFS_FS_VERBOSE 0
+   bool 'JFFS stats available in /proc filesystem' CONFIG_JFFS_PROC_FS
+fi
+dep_tristate 'Journalling Flash File System v2 (JFFS2) support' CONFIG_JFFS2_FS $CONFIG_MTD
+if [ "$CONFIG_JFFS2_FS" = "y" -o "$CONFIG_JFFS2_FS" = "m" ] ; then
+   int 'JFFS2 debugging verbosity (0 = quiet, 2 = noisy)' CONFIG_JFFS2_FS_DEBUG 0
+fi
+tristate 'Compressed ROM file system support' CONFIG_CRAMFS
+bool 'Virtual memory file system support (former shm fs)' CONFIG_TMPFS
+define_bool CONFIG_RAMFS y
+
+tristate 'ISO 9660 CDROM file system support' CONFIG_ISO9660_FS
+dep_mbool '  Microsoft Joliet CDROM extensions' CONFIG_JOLIET $CONFIG_ISO9660_FS
+dep_mbool '  Transparent decompression extension' CONFIG_ZISOFS $CONFIG_ISO9660_FS
+
+tristate 'JFS filesystem support' CONFIG_JFS_FS
+dep_mbool '  JFS debugging' CONFIG_JFS_DEBUG $CONFIG_JFS_FS
+dep_mbool '  JFS statistics' CONFIG_JFS_STATISTICS $CONFIG_JFS_FS
+
+tristate 'Minix fs support' CONFIG_MINIX_FS
+
+tristate 'FreeVxFS file system support (VERITAS VxFS(TM) compatible)' CONFIG_VXFS_FS
+tristate 'NTFS file system support (read only)' CONFIG_NTFS_FS
+dep_mbool '  NTFS write support (DANGEROUS)' CONFIG_NTFS_RW $CONFIG_NTFS_FS $CONFIG_EXPERIMENTAL
+
+tristate 'OS/2 HPFS file system support' CONFIG_HPFS_FS
+
+bool '/proc file system support' CONFIG_PROC_FS
+
+# For some reason devfs corrupts memory badly on x86-64. Disable it 
+# for now.
+if [ "$CONFIG_X86_64" != "y" ] ; then
+dep_bool '/dev file system support (EXPERIMENTAL)' CONFIG_DEVFS_FS $CONFIG_EXPERIMENTAL
+dep_bool '  Automatically mount at boot' CONFIG_DEVFS_MOUNT $CONFIG_DEVFS_FS
+dep_bool '  Debug devfs' CONFIG_DEVFS_DEBUG $CONFIG_DEVFS_FS
+fi
+
+# It compiles as a module for testing only.  It should not be used
+# as a module in general.  If we make this "tristate", a bunch of people
+# who don't know what they are doing turn it on and complain when it
+# breaks.
+dep_bool '/dev/pts file system for Unix98 PTYs' CONFIG_DEVPTS_FS $CONFIG_UNIX98_PTYS
+
+tristate 'QNX4 file system support (read only)' CONFIG_QNX4FS_FS
+dep_mbool '  QNX4FS write support (DANGEROUS)' CONFIG_QNX4FS_RW $CONFIG_QNX4FS_FS $CONFIG_EXPERIMENTAL
+
+tristate 'ROM file system support' CONFIG_ROMFS_FS
+
+tristate 'Second extended fs support' CONFIG_EXT2_FS
+
+tristate 'System V/Xenix/V7/Coherent file system support' CONFIG_SYSV_FS
+
+tristate 'UDF file system support (read only)' CONFIG_UDF_FS
+dep_mbool '  UDF write support (DANGEROUS)' CONFIG_UDF_RW $CONFIG_UDF_FS $CONFIG_EXPERIMENTAL
+
+tristate 'UFS file system support (read only)' CONFIG_UFS_FS
+dep_mbool '  UFS file system write support (DANGEROUS)' CONFIG_UFS_FS_WRITE $CONFIG_UFS_FS $CONFIG_EXPERIMENTAL
+
+tristate 'XFS filesystem support' CONFIG_XFS_FS
+dep_mbool    '  Quota support' CONFIG_XFS_QUOTA $CONFIG_XFS_FS
+dep_mbool    '  Realtime support (EXPERIMENTAL)' CONFIG_XFS_RT $CONFIG_XFS_FS $CONFIG_EXPERIMENTAL
+dep_mbool    '  Tracing support (EXPERIMENTAL)' CONFIG_XFS_TRACE $CONFIG_XFS_FS $CONFIG_EXPERIMENTAL
+dep_mbool    '  Debugging support (EXPERIMENTAL)' CONFIG_XFS_DEBUG $CONFIG_XFS_FS $CONFIG_EXPERIMENTAL
+
+if [ "$CONFIG_NET" = "y" ]; then
+
+   mainmenu_option next_comment
+   comment 'Network File Systems'
+
+   dep_tristate 'Coda file system support (advanced network fs)' CONFIG_CODA_FS $CONFIG_INET
+   dep_tristate 'InterMezzo file system support (replicating fs) (EXPERIMENTAL)' CONFIG_INTERMEZZO_FS $CONFIG_INET $CONFIG_EXPERIMENTAL
+   dep_tristate 'NFS file system support' CONFIG_NFS_FS $CONFIG_INET
+   dep_mbool '  Provide NFSv3 client support' CONFIG_NFS_V3 $CONFIG_NFS_FS
+   dep_mbool '  Allow direct I/O on NFS files (EXPERIMENTAL)' CONFIG_NFS_DIRECTIO $CONFIG_NFS_FS $CONFIG_EXPERIMENTAL
+   dep_bool '  Root file system on NFS' CONFIG_ROOT_NFS $CONFIG_NFS_FS $CONFIG_IP_PNP
+
+   dep_tristate 'NFS server support' CONFIG_NFSD $CONFIG_INET
+   dep_mbool '  Provide NFSv3 server support' CONFIG_NFSD_V3 $CONFIG_NFSD
+   dep_mbool '  Provide NFS server over TCP support' CONFIG_NFSD_TCP $CONFIG_NFSD
+
+   if [ "$CONFIG_NFS_FS" = "y" -o "$CONFIG_NFSD" = "y" ]; then
+      define_tristate CONFIG_SUNRPC y
+      define_tristate CONFIG_LOCKD y
+   else
+      if [ "$CONFIG_NFS_FS" = "m" -o "$CONFIG_NFSD" = "m" ]; then
+	 define_tristate CONFIG_SUNRPC m
+	 define_tristate CONFIG_LOCKD m
+   else
+	 define_tristate CONFIG_SUNRPC n
+	 define_tristate CONFIG_LOCKD n
+      fi
+   fi
+   if [ "$CONFIG_NFSD_V3" = "y" -o "$CONFIG_NFS_V3" = "y" ]; then
+     define_bool CONFIG_LOCKD_V4 y
+   fi
+
+   dep_tristate 'SMB file system support (to mount Windows shares etc.)' CONFIG_SMB_FS $CONFIG_INET
+   if [ "$CONFIG_SMB_FS" != "n" ]; then
+      bool '  Use a default NLS' CONFIG_SMB_NLS_DEFAULT
+      if [ "$CONFIG_SMB_NLS_DEFAULT" = "y" ]; then
+         string '    Default Remote NLS Option' CONFIG_SMB_NLS_REMOTE "cp437"
+      fi
+      bool '  Enable Unix Extensions' CONFIG_SMB_UNIX
+   fi
+   if [ "$CONFIG_IPX" != "n" -o "$CONFIG_INET" != "n" ]; then
+      tristate 'NCP file system support (to mount NetWare volumes)' CONFIG_NCP_FS
+      source fs/ncpfs/Config.in
+   else
+      # for fs/nls/Config.in
+      define_bool CONFIG_NCPFS_NLS n
+   fi
+   endmenu
+
+else
+   # for fs/nls/Config.in
+   define_bool CONFIG_NCPFS_NLS n
+   define_bool CONFIG_SMB_FS n
+fi
+
+#
+# Do we need the compression support?
+#
+if [ "$CONFIG_ZISOFS" = "y" ]; then
+   define_tristate CONFIG_ZISOFS_FS $CONFIG_ISO9660_FS
+else
+   define_tristate CONFIG_ZISOFS_FS n
+fi
+
+mainmenu_option next_comment
+comment 'Partition Types'
+source fs/partitions/Config.in
+endmenu
+source fs/nls/Config.in
+endmenu
diff --git a/fs/Makefile b/fs/Makefile
new file mode 100644
index 00000000000000..85fdfded573616
--- /dev/null
+++ b/fs/Makefile
@@ -0,0 +1,84 @@
+#
+# Makefile for the Linux filesystems.
+#
+# 14 Sep 2000, Christoph Hellwig <hch@infradead.org>
+# Rewritten to use lists instead of if-statements.
+# 
+
+O_TARGET := fs.o
+
+export-objs :=	filesystems.o open.o dcache.o buffer.o dquot.o
+mod-subdirs :=	nls
+
+obj-y :=	open.o read_write.o devices.o file_table.o buffer.o \
+		super.o block_dev.o char_dev.o stat.o exec.o pipe.o namei.o \
+		fcntl.o ioctl.o readdir.o select.o fifo.o locks.o \
+		dcache.o inode.o attr.o bad_inode.o file.o iobuf.o dnotify.o \
+		filesystems.o namespace.o seq_file.o xattr.o quota.o
+
+obj-$(CONFIG_QUOTA)		+= dquot.o quota_v1.o
+obj-$(CONFIG_QFMT_V2)		+= quota_v2.o
+
+subdir-$(CONFIG_PROC_FS)	+= proc
+subdir-y			+= partitions
+
+# Do not add any filesystems before this line
+subdir-$(CONFIG_EXT3_FS)	+= ext3    # Before ext2 so root fs can be ext3
+subdir-$(CONFIG_JBD)		+= jbd
+subdir-$(CONFIG_EXT2_FS)	+= ext2
+subdir-$(CONFIG_CRAMFS)		+= cramfs
+subdir-$(CONFIG_RAMFS)		+= ramfs
+subdir-$(CONFIG_CODA_FS)	+= coda
+subdir-$(CONFIG_INTERMEZZO_FS)	+= intermezzo
+subdir-$(CONFIG_MINIX_FS)	+= minix
+subdir-$(CONFIG_FAT_FS)		+= fat
+subdir-$(CONFIG_UMSDOS_FS)	+= umsdos
+subdir-$(CONFIG_MSDOS_FS)	+= msdos
+subdir-$(CONFIG_VFAT_FS)	+= vfat
+subdir-$(CONFIG_BFS_FS)		+= bfs
+subdir-$(CONFIG_ISO9660_FS)	+= isofs
+subdir-$(CONFIG_DEVFS_FS)	+= devfs
+subdir-$(CONFIG_HFSPLUS_FS)	+= hfsplus # Before hfs to find wrapped HFS+
+subdir-$(CONFIG_HFS_FS)		+= hfs
+subdir-$(CONFIG_VXFS_FS)	+= freevxfs
+subdir-$(CONFIG_NFS_FS)		+= nfs
+subdir-$(CONFIG_NFSD)		+= nfsd
+subdir-$(CONFIG_LOCKD)		+= lockd
+subdir-$(CONFIG_NLS)		+= nls
+subdir-$(CONFIG_SYSV_FS)	+= sysv
+subdir-$(CONFIG_SMB_FS)		+= smbfs
+subdir-$(CONFIG_NCP_FS)		+= ncpfs
+subdir-$(CONFIG_HPFS_FS)	+= hpfs
+subdir-$(CONFIG_NTFS_FS)	+= ntfs
+subdir-$(CONFIG_UFS_FS)		+= ufs
+subdir-$(CONFIG_EFS_FS)		+= efs
+subdir-$(CONFIG_JFFS_FS)	+= jffs
+subdir-$(CONFIG_JFFS2_FS)	+= jffs2
+subdir-$(CONFIG_AFFS_FS)	+= affs
+subdir-$(CONFIG_ROMFS_FS)	+= romfs
+subdir-$(CONFIG_QNX4FS_FS)	+= qnx4
+subdir-$(CONFIG_UDF_FS)		+= udf
+subdir-$(CONFIG_AUTOFS_FS)	+= autofs
+subdir-$(CONFIG_AUTOFS4_FS)	+= autofs4
+subdir-$(CONFIG_ADFS_FS)	+= adfs
+subdir-$(CONFIG_REISERFS_FS)	+= reiserfs
+subdir-$(CONFIG_DEVPTS_FS)	+= devpts
+subdir-$(CONFIG_SUN_OPENPROMFS)	+= openpromfs
+subdir-$(CONFIG_BEFS_FS)	+= befs
+subdir-$(CONFIG_JFS_FS)		+= jfs
+subdir-$(CONFIG_XFS_FS)		+= xfs
+
+obj-$(CONFIG_BINFMT_AOUT)	+= binfmt_aout.o
+obj-$(CONFIG_BINFMT_EM86)	+= binfmt_em86.o
+obj-$(CONFIG_BINFMT_MISC)	+= binfmt_misc.o
+
+# binfmt_script is always there
+obj-y				+= binfmt_script.o
+
+obj-$(CONFIG_BINFMT_ELF)	+= binfmt_elf.o
+
+# persistent filesystems
+obj-y += $(join $(subdir-y),$(subdir-y:%=/%.o))
+
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/Makefile.lib b/fs/Makefile.lib
new file mode 100644
index 00000000000000..bbdcfa520d193b
--- /dev/null
+++ b/fs/Makefile.lib
@@ -0,0 +1,2 @@
+obj-$(CONFIG_JFFS2_FS)		+= crc32.o
+obj-$(CONFIG_EFI_PARTITION)	+= crc32.o
diff --git a/fs/adfs/Makefile b/fs/adfs/Makefile
new file mode 100644
index 00000000000000..f1a279dde8831a
--- /dev/null
+++ b/fs/adfs/Makefile
@@ -0,0 +1,15 @@
+#
+# Makefile for the linux adfs filesystem routines.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile.
+
+O_TARGET := adfs.o
+
+obj-y    := dir.o dir_f.o dir_fplus.o file.o inode.o map.o super.o
+obj-m    := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/adfs/adfs.h b/fs/adfs/adfs.h
new file mode 100644
index 00000000000000..30c400e5bcc6e4
--- /dev/null
+++ b/fs/adfs/adfs.h
@@ -0,0 +1,137 @@
+/* Internal data structures for ADFS */
+
+#define ADFS_FREE_FRAG		 0
+#define ADFS_BAD_FRAG		 1
+#define ADFS_ROOT_FRAG		 2
+
+#define ADFS_NDA_OWNER_READ	(1 << 0)
+#define ADFS_NDA_OWNER_WRITE	(1 << 1)
+#define ADFS_NDA_LOCKED		(1 << 2)
+#define ADFS_NDA_DIRECTORY	(1 << 3)
+#define ADFS_NDA_EXECUTE	(1 << 4)
+#define ADFS_NDA_PUBLIC_READ	(1 << 5)
+#define ADFS_NDA_PUBLIC_WRITE	(1 << 6)
+
+#include "dir_f.h"
+
+/*
+ * Directory handling
+ */
+struct adfs_dir {
+	struct super_block	*sb;
+
+	int			nr_buffers;
+	struct buffer_head	*bh[4];
+	unsigned int		pos;
+	unsigned int		parent_id;
+
+	struct adfs_dirheader	dirhead;
+	union  adfs_dirtail	dirtail;
+};
+
+/*
+ * This is the overall maximum name length
+ */
+#define ADFS_MAX_NAME_LEN	256
+struct object_info {
+	__u32		parent_id;		/* parent object id	*/
+	__u32		file_id;		/* object id		*/
+	__u32		loadaddr;		/* load address		*/
+	__u32		execaddr;		/* execution address	*/
+	__u32		size;			/* size			*/
+	__u8		attr;			/* RISC OS attributes	*/
+	unsigned char	name_len;		/* name length		*/
+	char		name[ADFS_MAX_NAME_LEN];/* file name		*/
+};
+
+struct adfs_dir_ops {
+	int	(*read)(struct super_block *sb, unsigned int id, unsigned int sz, struct adfs_dir *dir);
+	int	(*setpos)(struct adfs_dir *dir, unsigned int fpos);
+	int	(*getnext)(struct adfs_dir *dir, struct object_info *obj);
+	int	(*update)(struct adfs_dir *dir, struct object_info *obj);
+	int	(*create)(struct adfs_dir *dir, struct object_info *obj);
+	int	(*remove)(struct adfs_dir *dir, struct object_info *obj);
+	void	(*free)(struct adfs_dir *dir);
+};
+
+struct adfs_discmap {
+	struct buffer_head	*dm_bh;
+	__u32			dm_startblk;
+	unsigned int		dm_startbit;
+	unsigned int		dm_endbit;
+};
+
+/* dir stuff */
+
+
+/* Inode stuff */
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0)
+int adfs_get_block(struct inode *inode, long block,
+		   struct buffer_head *bh, int create);
+#else
+int adfs_bmap(struct inode *inode, int block);
+#endif
+struct inode *adfs_iget(struct super_block *sb, struct object_info *obj);
+void adfs_read_inode(struct inode *inode);
+void adfs_write_inode(struct inode *inode,int unused);
+int adfs_notify_change(struct dentry *dentry, struct iattr *attr);
+
+/* map.c */
+extern int adfs_map_lookup(struct super_block *sb, int frag_id, int offset);
+extern unsigned int adfs_map_free(struct super_block *sb);
+
+/* Misc */
+void __adfs_error(struct super_block *sb, const char *function,
+		  const char *fmt, ...);
+#define adfs_error(sb, fmt...) __adfs_error(sb, __FUNCTION__, fmt)
+
+/* namei.c */
+extern struct dentry *adfs_lookup(struct inode *dir, struct dentry *dentry);
+
+/* super.c */
+
+/*
+ * Inodes and file operations
+ */
+
+/* dir_*.c */
+extern struct inode_operations adfs_dir_inode_operations;
+extern struct file_operations adfs_dir_operations;
+extern struct dentry_operations adfs_dentry_operations;
+extern struct adfs_dir_ops adfs_f_dir_ops;
+extern struct adfs_dir_ops adfs_fplus_dir_ops;
+
+extern int adfs_dir_update(struct super_block *sb, struct object_info *obj);
+
+/* file.c */
+extern struct inode_operations adfs_file_inode_operations;
+extern struct file_operations adfs_file_operations;
+
+extern inline __u32 signed_asl(__u32 val, signed int shift)
+{
+	if (shift >= 0)
+		val <<= shift;
+	else
+		val >>= -shift;
+	return val;
+}
+
+/*
+ * Calculate the address of a block in an object given the block offset
+ * and the object identity.
+ *
+ * The root directory ID should always be looked up in the map [3.4]
+ */
+extern inline int
+__adfs_block_map(struct super_block *sb, unsigned int object_id,
+		 unsigned int block)
+{
+	if (object_id & 255) {
+		unsigned int off;
+
+		off = (object_id & 255) - 1;
+		block += off << sb->u.adfs_sb.s_log2sharesize;
+	}
+
+	return adfs_map_lookup(sb, object_id >> 8, block);
+}
diff --git a/fs/adfs/dir.c b/fs/adfs/dir.c
new file mode 100644
index 00000000000000..51828c6057c4aa
--- /dev/null
+++ b/fs/adfs/dir.c
@@ -0,0 +1,295 @@
+/*
+ *  linux/fs/adfs/dir.c
+ *
+ *  Copyright (C) 1999-2000 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ *  Common directory handling for ADFS
+ */
+#include <linux/config.h>
+#include <linux/version.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/adfs_fs.h>
+#include <linux/sched.h>
+#include <linux/stat.h>
+#include <linux/spinlock.h>
+
+#include "adfs.h"
+
+/*
+ * For future.  This should probably be per-directory.
+ */
+static rwlock_t adfs_dir_lock;
+
+static int
+adfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
+{
+	struct inode *inode = filp->f_dentry->d_inode;
+	struct super_block *sb = inode->i_sb;
+	struct adfs_dir_ops *ops = sb->u.adfs_sb.s_dir;
+	struct object_info obj;
+	struct adfs_dir dir;
+	int ret = 0;
+
+	if (filp->f_pos >> 32)
+		goto out;
+
+	ret = ops->read(sb, inode->i_ino, inode->i_size, &dir);
+	if (ret)
+		goto out;
+
+	switch ((unsigned long)filp->f_pos) {
+	case 0:
+		if (filldir(dirent, ".", 1, 0, inode->i_ino, DT_DIR) < 0)
+			goto free_out;
+		filp->f_pos += 1;
+
+	case 1:
+		if (filldir(dirent, "..", 2, 1, dir.parent_id, DT_DIR) < 0)
+			goto free_out;
+		filp->f_pos += 1;
+
+	default:
+		break;
+	}
+
+	read_lock(&adfs_dir_lock);
+
+	ret = ops->setpos(&dir, filp->f_pos - 2);
+	if (ret)
+		goto unlock_out;
+	while (ops->getnext(&dir, &obj) == 0) {
+		if (filldir(dirent, obj.name, obj.name_len,
+			    filp->f_pos, obj.file_id, DT_UNKNOWN) < 0)
+			goto unlock_out;
+		filp->f_pos += 1;
+	}
+
+unlock_out:
+	read_unlock(&adfs_dir_lock);
+
+free_out:
+	ops->free(&dir);
+
+out:
+	return ret;
+}
+
+int
+adfs_dir_update(struct super_block *sb, struct object_info *obj)
+{
+	int ret = -EINVAL;
+#ifdef CONFIG_ADFS_FS_RW
+	struct adfs_dir_ops *ops = sb->u.adfs_sb.s_dir;
+	struct adfs_dir dir;
+
+	printk(KERN_INFO "adfs_dir_update: object %06X in dir %06X\n",
+		 obj->file_id, obj->parent_id);
+
+	if (!ops->update) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	ret = ops->read(sb, obj->parent_id, 0, &dir);
+	if (ret)
+		goto out;
+
+	write_lock(&adfs_dir_lock);
+	ret = ops->update(&dir, obj);
+	write_unlock(&adfs_dir_lock);
+
+	ops->free(&dir);
+out:
+#endif
+	return ret;
+}
+
+static int
+adfs_match(struct qstr *name, struct object_info *obj)
+{
+	int i;
+
+	if (name->len != obj->name_len)
+		return 0;
+
+	for (i = 0; i < name->len; i++) {
+		char c1, c2;
+
+		c1 = name->name[i];
+		c2 = obj->name[i];
+
+		if (c1 >= 'A' && c1 <= 'Z')
+			c1 += 'a' - 'A';
+		if (c2 >= 'A' && c2 <= 'Z')
+			c2 += 'a' - 'A';
+
+		if (c1 != c2)
+			return 0;
+	}
+	return 1;
+}
+
+static int
+adfs_dir_lookup_byname(struct inode *inode, struct qstr *name, struct object_info *obj)
+{
+	struct super_block *sb = inode->i_sb;
+	struct adfs_dir_ops *ops = sb->u.adfs_sb.s_dir;
+	struct adfs_dir dir;
+	int ret;
+
+	ret = ops->read(sb, inode->i_ino, inode->i_size, &dir);
+	if (ret)
+		goto out;
+
+	if (inode->u.adfs_i.parent_id != dir.parent_id) {
+		adfs_error(sb, "parent directory changed under me! (%lx but got %lx)\n",
+			   inode->u.adfs_i.parent_id, dir.parent_id);
+		ret = -EIO;
+		goto free_out;
+	}
+
+	obj->parent_id = inode->i_ino;
+
+	/*
+	 * '.' is handled by reserved_lookup() in fs/namei.c
+	 */
+	if (name->len == 2 && name->name[0] == '.' && name->name[1] == '.') {
+		/*
+		 * Currently unable to fill in the rest of 'obj',
+		 * but this is better than nothing.  We need to
+		 * ascend one level to find it's parent.
+		 */
+		obj->name_len = 0;
+		obj->file_id  = obj->parent_id;
+		goto free_out;
+	}
+
+	read_lock(&adfs_dir_lock);
+
+	ret = ops->setpos(&dir, 0);
+	if (ret)
+		goto unlock_out;
+
+	ret = -ENOENT;
+	while (ops->getnext(&dir, obj) == 0) {
+		if (adfs_match(name, obj)) {
+			ret = 0;
+			break;
+		}
+	}
+
+unlock_out:
+	read_unlock(&adfs_dir_lock);
+
+free_out:
+	ops->free(&dir);
+out:
+	return ret;
+}
+
+struct file_operations adfs_dir_operations = {
+	read:		generic_read_dir,
+	readdir:	adfs_readdir,
+	fsync:		file_fsync,
+};
+
+static int
+adfs_hash(struct dentry *parent, struct qstr *qstr)
+{
+	const unsigned int name_len = parent->d_sb->u.adfs_sb.s_namelen;
+	const unsigned char *name;
+	unsigned long hash;
+	int i;
+
+	if (qstr->len < name_len)
+		return 0;
+
+	/*
+	 * Truncate the name in place, avoids
+	 * having to define a compare function.
+	 */
+	qstr->len = i = name_len;
+	name = qstr->name;
+	hash = init_name_hash();
+	while (i--) {
+		char c;
+
+		c = *name++;
+		if (c >= 'A' && c <= 'Z')
+			c += 'a' - 'A';
+
+		hash = partial_name_hash(c, hash);
+	}
+	qstr->hash = end_name_hash(hash);
+
+	return 0;
+}
+
+/*
+ * Compare two names, taking note of the name length
+ * requirements of the underlying filesystem.
+ */
+static int
+adfs_compare(struct dentry *parent, struct qstr *entry, struct qstr *name)
+{
+	int i;
+
+	if (entry->len != name->len)
+		return 1;
+
+	for (i = 0; i < name->len; i++) {
+		char a, b;
+
+		a = entry->name[i];
+		b = name->name[i];
+
+		if (a >= 'A' && a <= 'Z')
+			a += 'a' - 'A';
+		if (b >= 'A' && b <= 'Z')
+			b += 'a' - 'A';
+
+		if (a != b)
+			return 1;
+	}
+	return 0;
+}
+
+struct dentry_operations adfs_dentry_operations = {
+	d_hash:		adfs_hash,
+	d_compare:	adfs_compare,
+};
+
+struct dentry *adfs_lookup(struct inode *dir, struct dentry *dentry)
+{
+	struct inode *inode = NULL;
+	struct object_info obj;
+	int error;
+
+	dentry->d_op = &adfs_dentry_operations;	
+	error = adfs_dir_lookup_byname(dir, &dentry->d_name, &obj);
+	if (error == 0) {
+		error = -EACCES;
+		/*
+		 * This only returns NULL if get_empty_inode
+		 * fails.
+		 */
+		inode = adfs_iget(dir->i_sb, &obj);
+		if (inode)
+			error = 0;
+	}
+	d_add(dentry, inode);
+	return ERR_PTR(error);
+}
+
+/*
+ * directories can handle most operations...
+ */
+struct inode_operations adfs_dir_inode_operations = {
+	lookup:		adfs_lookup,
+	setattr:	adfs_notify_change,
+};
diff --git a/fs/adfs/dir_f.c b/fs/adfs/dir_f.c
new file mode 100644
index 00000000000000..66a0c36a74fbc3
--- /dev/null
+++ b/fs/adfs/dir_f.c
@@ -0,0 +1,478 @@
+/*
+ *  linux/fs/adfs/dir_f.c
+ *
+ * Copyright (C) 1997-1999 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ *  E and F format directory handling
+ */
+#include <linux/version.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/adfs_fs.h>
+#include <linux/sched.h>
+#include <linux/stat.h>
+#include <linux/spinlock.h>
+
+#include "adfs.h"
+#include "dir_f.h"
+
+static void adfs_f_free(struct adfs_dir *dir);
+
+/*
+ * Read an (unaligned) value of length 1..4 bytes
+ */
+static inline unsigned int adfs_readval(unsigned char *p, int len)
+{
+	unsigned int val = 0;
+
+	switch (len) {
+	case 4:		val |= p[3] << 24;
+	case 3:		val |= p[2] << 16;
+	case 2:		val |= p[1] << 8;
+	default:	val |= p[0];
+	}
+	return val;
+}
+
+static inline void adfs_writeval(unsigned char *p, int len, unsigned int val)
+{
+	switch (len) {
+	case 4:		p[3] = val >> 24;
+	case 3:		p[2] = val >> 16;
+	case 2:		p[1] = val >> 8;
+	default:	p[0] = val;
+	}
+}
+
+static inline int adfs_readname(char *buf, char *ptr, int maxlen)
+{
+	char *old_buf = buf;
+
+	while (*ptr >= ' ' && maxlen--) {
+		if (*ptr == '/')
+			*buf++ = '.';
+		else
+			*buf++ = *ptr;
+		ptr++;
+	}
+	*buf = '\0';
+
+	return buf - old_buf;
+}
+
+static inline void adfs_writename(char *to, char *from, int maxlen)
+{
+	int i;
+
+	for (i = 0; i < maxlen; i++) {
+		if (from[i] == '\0')
+			break;
+		if (from[i] == '.')
+			to[i] = '/';
+		else
+			to[i] = from[i];
+	}
+
+	for (; i < maxlen; i++)
+		to[i] = '\0';
+}
+
+#define ror13(v) ((v >> 13) | (v << 19))
+
+#define dir_u8(idx)				\
+	({ int _buf = idx >> blocksize_bits;	\
+	   int _off = idx - (_buf << blocksize_bits);\
+	  *(u8 *)(bh[_buf]->b_data + _off);	\
+	})
+
+#define dir_u32(idx)				\
+	({ int _buf = idx >> blocksize_bits;	\
+	   int _off = idx - (_buf << blocksize_bits);\
+	  *(u32 *)(bh[_buf]->b_data + _off);	\
+	})
+
+#define bufoff(_bh,_idx)			\
+	({ int _buf = _idx >> blocksize_bits;	\
+	   int _off = _idx - (_buf << blocksize_bits);\
+	  (u8 *)(_bh[_buf]->b_data + _off);	\
+	})
+
+/*
+ * There are some algorithms that are nice in
+ * assembler, but a bitch in C...  This is one
+ * of them.
+ */
+static u8
+adfs_dir_checkbyte(const struct adfs_dir *dir)
+{
+	struct buffer_head * const *bh = dir->bh;
+	const int blocksize_bits = dir->sb->s_blocksize_bits;
+	union { u32 *ptr32; u8 *ptr8; } ptr, end;
+	u32 dircheck = 0;
+	int last = 5 - 26;
+	int i = 0;
+
+	/*
+	 * Accumulate each word up to the last whole
+	 * word of the last directory entry.  This
+	 * can spread across several buffer heads.
+	 */
+	do {
+		last += 26;
+		do {
+			dircheck = cpu_to_le32(dir_u32(i)) ^ ror13(dircheck);
+
+			i += sizeof(u32);
+		} while (i < (last & ~3));
+	} while (dir_u8(last) != 0);
+
+	/*
+	 * Accumulate the last few bytes.  These
+	 * bytes will be within the same bh.
+	 */
+	if (i != last) {
+		ptr.ptr8 = bufoff(bh, i);
+		end.ptr8 = ptr.ptr8 + last - i;
+
+		do
+			dircheck = *ptr.ptr8++ ^ ror13(dircheck);
+		while (ptr.ptr8 < end.ptr8);
+	}
+
+	/*
+	 * The directory tail is in the final bh
+	 * Note that contary to the RISC OS PRMs,
+	 * the first few bytes are NOT included
+	 * in the check.  All bytes are in the
+	 * same bh.
+	 */
+	ptr.ptr8 = bufoff(bh, 2008);
+	end.ptr8 = ptr.ptr8 + 36;
+
+	do {
+		unsigned int v = *ptr.ptr32++;
+		dircheck = cpu_to_le32(v) ^ ror13(dircheck);
+	} while (ptr.ptr32 < end.ptr32);
+
+	return (dircheck ^ (dircheck >> 8) ^ (dircheck >> 16) ^ (dircheck >> 24)) & 0xff;
+}
+
+/*
+ * Read and check that a directory is valid
+ */
+int
+adfs_dir_read(struct super_block *sb, unsigned long object_id,
+	      unsigned int size, struct adfs_dir *dir)
+{
+	const unsigned int blocksize_bits = sb->s_blocksize_bits;
+	int blk = 0;
+
+	/*
+	 * Directories which are not a multiple of 2048 bytes
+	 * are considered bad v2 [3.6]
+	 */
+	if (size & 2047)
+		goto bad_dir;
+
+	size >>= blocksize_bits;
+
+	dir->nr_buffers = 0;
+	dir->sb = sb;
+
+	for (blk = 0; blk < size; blk++) {
+		int phys;
+
+		phys = __adfs_block_map(sb, object_id, blk);
+		if (!phys) {
+			adfs_error(sb, "dir object %lX has a hole at offset %d",
+				   object_id, blk);
+			goto release_buffers;
+		}
+
+		dir->bh[blk] = sb_bread(sb, phys);
+		if (!dir->bh[blk])
+			goto release_buffers;
+	}
+
+	memcpy(&dir->dirhead, bufoff(dir->bh, 0), sizeof(dir->dirhead));
+	memcpy(&dir->dirtail, bufoff(dir->bh, 2007), sizeof(dir->dirtail));
+
+	if (dir->dirhead.startmasseq != dir->dirtail.new.endmasseq ||
+	    memcmp(&dir->dirhead.startname, &dir->dirtail.new.endname, 4))
+		goto bad_dir;
+
+	if (memcmp(&dir->dirhead.startname, "Nick", 4) &&
+	    memcmp(&dir->dirhead.startname, "Hugo", 4))
+		goto bad_dir;
+
+	if (adfs_dir_checkbyte(dir) != dir->dirtail.new.dircheckbyte)
+		goto bad_dir;
+
+	dir->nr_buffers = blk;
+
+	return 0;
+
+bad_dir:
+	adfs_error(sb, "corrupted directory fragment %lX",
+		   object_id);
+release_buffers:
+	for (blk -= 1; blk >= 0; blk -= 1)
+		brelse(dir->bh[blk]);
+
+	dir->sb = NULL;
+
+	return -EIO;
+}
+
+/*
+ * convert a disk-based directory entry to a Linux ADFS directory entry
+ */
+static inline void
+adfs_dir2obj(struct object_info *obj, struct adfs_direntry *de)
+{
+	obj->name_len =	adfs_readname(obj->name, de->dirobname, ADFS_F_NAME_LEN);
+	obj->file_id  = adfs_readval(de->dirinddiscadd, 3);
+	obj->loadaddr = adfs_readval(de->dirload, 4);
+	obj->execaddr = adfs_readval(de->direxec, 4);
+	obj->size     = adfs_readval(de->dirlen,  4);
+	obj->attr     = de->newdiratts;
+}
+
+/*
+ * convert a Linux ADFS directory entry to a disk-based directory entry
+ */
+static inline void
+adfs_obj2dir(struct adfs_direntry *de, struct object_info *obj)
+{
+	adfs_writeval(de->dirinddiscadd, 3, obj->file_id);
+	adfs_writeval(de->dirload, 4, obj->loadaddr);
+	adfs_writeval(de->direxec, 4, obj->execaddr);
+	adfs_writeval(de->dirlen,  4, obj->size);
+	de->newdiratts = obj->attr;
+}
+
+/*
+ * get a directory entry.  Note that the caller is responsible
+ * for holding the relevent locks.
+ */
+int
+__adfs_dir_get(struct adfs_dir *dir, int pos, struct object_info *obj)
+{
+	struct super_block *sb = dir->sb;
+	struct adfs_direntry de;
+	int thissize, buffer, offset;
+
+	buffer = pos >> sb->s_blocksize_bits;
+
+	if (buffer > dir->nr_buffers)
+		return -EINVAL;
+
+	offset = pos & (sb->s_blocksize - 1);
+	thissize = sb->s_blocksize - offset;
+	if (thissize > 26)
+		thissize = 26;
+
+	memcpy(&de, dir->bh[buffer]->b_data + offset, thissize);
+	if (thissize != 26)
+		memcpy(((char *)&de) + thissize, dir->bh[buffer + 1]->b_data,
+		       26 - thissize);
+
+	if (!de.dirobname[0])
+		return -ENOENT;
+
+	adfs_dir2obj(obj, &de);
+
+	return 0;
+}
+
+int
+__adfs_dir_put(struct adfs_dir *dir, int pos, struct object_info *obj)
+{
+	struct super_block *sb = dir->sb;
+	struct adfs_direntry de;
+	int thissize, buffer, offset;
+
+	buffer = pos >> sb->s_blocksize_bits;
+
+	if (buffer > dir->nr_buffers)
+		return -EINVAL;
+
+	offset = pos & (sb->s_blocksize - 1);
+	thissize = sb->s_blocksize - offset;
+	if (thissize > 26)
+		thissize = 26;
+
+	/*
+	 * Get the entry in total
+	 */
+	memcpy(&de, dir->bh[buffer]->b_data + offset, thissize);
+	if (thissize != 26)
+		memcpy(((char *)&de) + thissize, dir->bh[buffer + 1]->b_data,
+		       26 - thissize);
+
+	/*
+	 * update it
+	 */
+	adfs_obj2dir(&de, obj);
+
+	/*
+	 * Put the new entry back
+	 */
+	memcpy(dir->bh[buffer]->b_data + offset, &de, thissize);
+	if (thissize != 26)
+		memcpy(dir->bh[buffer + 1]->b_data, ((char *)&de) + thissize,
+		       26 - thissize);
+
+	return 0;
+}
+
+/*
+ * the caller is responsible for holding the necessary
+ * locks.
+ */
+static int
+adfs_dir_find_entry(struct adfs_dir *dir, unsigned long object_id)
+{
+	int pos, ret;
+
+	ret = -ENOENT;
+
+	for (pos = 5; pos < ADFS_NUM_DIR_ENTRIES * 26 + 5; pos += 26) {
+		struct object_info obj;
+
+		if (!__adfs_dir_get(dir, pos, &obj))
+			break;
+
+		if (obj.file_id == object_id) {
+			ret = pos;
+			break;
+		}
+	}
+
+	return ret;
+}
+
+static int
+adfs_f_read(struct super_block *sb, unsigned int id, unsigned int sz, struct adfs_dir *dir)
+{
+	int ret;
+
+	if (sz != ADFS_NEWDIR_SIZE)
+		return -EIO;
+
+	ret = adfs_dir_read(sb, id, sz, dir);
+	if (ret)
+		adfs_error(sb, "unable to read directory");
+	else
+		dir->parent_id = adfs_readval(dir->dirtail.new.dirparent, 3);
+
+	return ret;
+}
+
+static int
+adfs_f_setpos(struct adfs_dir *dir, unsigned int fpos)
+{
+	if (fpos >= ADFS_NUM_DIR_ENTRIES)
+		return -ENOENT;
+
+	dir->pos = 5 + fpos * 26;
+	return 0;
+}
+
+static int
+adfs_f_getnext(struct adfs_dir *dir, struct object_info *obj)
+{
+	unsigned int ret;
+
+	ret = __adfs_dir_get(dir, dir->pos, obj);
+	if (ret == 0)
+		dir->pos += 26;
+
+	return ret;
+}
+
+static int
+adfs_f_update(struct adfs_dir *dir, struct object_info *obj)
+{
+	struct super_block *sb = dir->sb;
+	int ret, i;
+
+	ret = adfs_dir_find_entry(dir, obj->file_id);
+	if (ret < 0) {
+		adfs_error(dir->sb, "unable to locate entry to update");
+		goto out;
+	}
+
+	__adfs_dir_put(dir, ret, obj);
+ 
+	/*
+	 * Increment directory sequence number
+	 */
+	dir->bh[0]->b_data[0] += 1;
+	dir->bh[dir->nr_buffers - 1]->b_data[sb->s_blocksize - 6] += 1;
+
+	ret = adfs_dir_checkbyte(dir);
+	/*
+	 * Update directory check byte
+	 */
+	dir->bh[dir->nr_buffers - 1]->b_data[sb->s_blocksize - 1] = ret;
+
+#if 1
+	{
+	const unsigned int blocksize_bits = sb->s_blocksize_bits;
+
+	memcpy(&dir->dirhead, bufoff(dir->bh, 0), sizeof(dir->dirhead));
+	memcpy(&dir->dirtail, bufoff(dir->bh, 2007), sizeof(dir->dirtail));
+
+	if (dir->dirhead.startmasseq != dir->dirtail.new.endmasseq ||
+	    memcmp(&dir->dirhead.startname, &dir->dirtail.new.endname, 4))
+		goto bad_dir;
+
+	if (memcmp(&dir->dirhead.startname, "Nick", 4) &&
+	    memcmp(&dir->dirhead.startname, "Hugo", 4))
+		goto bad_dir;
+
+	if (adfs_dir_checkbyte(dir) != dir->dirtail.new.dircheckbyte)
+		goto bad_dir;
+	}
+#endif
+	for (i = dir->nr_buffers - 1; i >= 0; i--)
+		mark_buffer_dirty(dir->bh[i]);
+
+	ret = 0;
+out:
+	return ret;
+#if 1
+bad_dir:
+	adfs_error(dir->sb, "whoops!  I broke a directory!");
+	return -EIO;
+#endif
+}
+
+static void
+adfs_f_free(struct adfs_dir *dir)
+{
+	int i;
+
+	for (i = dir->nr_buffers - 1; i >= 0; i--) {
+		brelse(dir->bh[i]);
+		dir->bh[i] = NULL;
+	}
+
+	dir->nr_buffers = 0;
+	dir->sb = NULL;
+}
+
+struct adfs_dir_ops adfs_f_dir_ops = {
+	adfs_f_read,
+	adfs_f_setpos,
+	adfs_f_getnext,
+	adfs_f_update,
+	NULL,
+	NULL,
+	adfs_f_free
+};
diff --git a/fs/adfs/dir_f.h b/fs/adfs/dir_f.h
new file mode 100644
index 00000000000000..e4713404096cfb
--- /dev/null
+++ b/fs/adfs/dir_f.h
@@ -0,0 +1,65 @@
+/*
+ *  linux/fs/adfs/dir_f.h
+ *
+ *  Copyright (C) 1999 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ *  Structures of directories on the F format disk
+ */
+#ifndef ADFS_DIR_F_H
+#define ADFS_DIR_F_H
+
+/*
+ * Directory header
+ */
+struct adfs_dirheader {
+	unsigned char startmasseq;
+	unsigned char startname[4];
+};
+
+#define ADFS_NEWDIR_SIZE	2048
+#define ADFS_NUM_DIR_ENTRIES	77
+
+/*
+ * Directory entries
+ */
+struct adfs_direntry {
+#define ADFS_F_NAME_LEN 10
+	char dirobname[ADFS_F_NAME_LEN];
+	__u8 dirload[4];
+	__u8 direxec[4];
+	__u8 dirlen[4];
+	__u8 dirinddiscadd[3];
+	__u8 newdiratts;
+};
+
+/*
+ * Directory tail
+ */
+union adfs_dirtail {
+	struct {
+		unsigned char dirlastmask;
+		char dirname[10];
+		unsigned char dirparent[3];
+		char dirtitle[19];
+		unsigned char reserved[14];
+		unsigned char endmasseq;
+		unsigned char endname[4];
+		unsigned char dircheckbyte;
+	} old;
+	struct {
+		unsigned char dirlastmask;
+		unsigned char reserved[2];
+		unsigned char dirparent[3];
+		char dirtitle[19];
+		char dirname[10];
+		unsigned char endmasseq;
+		unsigned char endname[4];
+		unsigned char dircheckbyte;
+	} new;
+};
+
+#endif
diff --git a/fs/adfs/dir_fplus.c b/fs/adfs/dir_fplus.c
new file mode 100644
index 00000000000000..71064bc55150cb
--- /dev/null
+++ b/fs/adfs/dir_fplus.c
@@ -0,0 +1,181 @@
+/*
+ *  linux/fs/adfs/dir_fplus.c
+ *
+ *  Copyright (C) 1997-1999 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/version.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/adfs_fs.h>
+#include <linux/sched.h>
+#include <linux/stat.h>
+#include <linux/spinlock.h>
+
+#include "adfs.h"
+#include "dir_fplus.h"
+
+static int
+adfs_fplus_read(struct super_block *sb, unsigned int id, unsigned int sz, struct adfs_dir *dir)
+{
+	struct adfs_bigdirheader *h;
+	struct adfs_bigdirtail *t;
+	unsigned long block;
+	unsigned int blk, size;
+	int i, ret = -EIO;
+
+	dir->nr_buffers = 0;
+
+	block = __adfs_block_map(sb, id, 0);
+	if (!block) {
+		adfs_error(sb, "dir object %X has a hole at offset 0", id);
+		goto out;
+	}
+
+	dir->bh[0] = sb_bread(sb, block);
+	if (!dir->bh[0])
+		goto out;
+	dir->nr_buffers += 1;
+
+	h = (struct adfs_bigdirheader *)dir->bh[0]->b_data;
+	size = le32_to_cpu(h->bigdirsize);
+	if (size != sz) {
+		printk(KERN_WARNING "adfs: adfs_fplus_read: directory header size\n"
+				" does not match directory size\n");
+	}
+
+	if (h->bigdirversion[0] != 0 || h->bigdirversion[1] != 0 ||
+	    h->bigdirversion[2] != 0 || size & 2047 ||
+	    h->bigdirstartname != cpu_to_le32(BIGDIRSTARTNAME))
+		goto out;
+
+	size >>= sb->s_blocksize_bits;
+	for (blk = 1; blk < size; blk++) {
+		block = __adfs_block_map(sb, id, blk);
+		if (!block) {
+			adfs_error(sb, "dir object %X has a hole at offset %d", id, blk);
+			goto out;
+		}
+
+		dir->bh[blk] = sb_bread(sb, block);
+		if (!dir->bh[blk])
+			goto out;
+		dir->nr_buffers = blk;
+	}
+
+	t = (struct adfs_bigdirtail *)(dir->bh[size - 1]->b_data + (sb->s_blocksize - 8));
+
+	if (t->bigdirendname != cpu_to_le32(BIGDIRENDNAME) ||
+	    t->bigdirendmasseq != h->startmasseq ||
+	    t->reserved[0] != 0 || t->reserved[1] != 0)
+		goto out;
+
+	dir->parent_id = le32_to_cpu(h->bigdirparent);
+	dir->sb = sb;
+	return 0;
+out:
+	for (i = 0; i < dir->nr_buffers; i++)
+		brelse(dir->bh[i]);
+	dir->sb = NULL;
+	return ret;
+}
+
+static int
+adfs_fplus_setpos(struct adfs_dir *dir, unsigned int fpos)
+{
+	struct adfs_bigdirheader *h = (struct adfs_bigdirheader *)dir->bh[0]->b_data;
+	int ret = -ENOENT;
+
+	if (fpos <= le32_to_cpu(h->bigdirentries)) {
+		dir->pos = fpos;
+		ret = 0;
+	}
+
+	return ret;
+}
+
+static void
+dir_memcpy(struct adfs_dir *dir, unsigned int offset, void *to, int len)
+{
+	struct super_block *sb = dir->sb;
+	unsigned int buffer, partial, remainder;
+
+	buffer = offset >> sb->s_blocksize_bits;
+	offset &= sb->s_blocksize - 1;
+
+	partial = sb->s_blocksize - offset;
+
+	if (partial >= len)
+		memcpy(to, dir->bh[buffer]->b_data + offset, len);
+	else {
+		char *c = (char *)to;
+
+		remainder = len - partial;
+
+		memcpy(c, dir->bh[buffer]->b_data + offset, partial);
+		memcpy(c + partial, dir->bh[buffer + 1]->b_data, remainder);
+	}
+}
+
+static int
+adfs_fplus_getnext(struct adfs_dir *dir, struct object_info *obj)
+{
+	struct adfs_bigdirheader *h = (struct adfs_bigdirheader *)dir->bh[0]->b_data;
+	struct adfs_bigdirentry bde;
+	unsigned int offset;
+	int i, ret = -ENOENT;
+
+	if (dir->pos >= le32_to_cpu(h->bigdirentries))
+		goto out;
+
+	offset = offsetof(struct adfs_bigdirheader, bigdirname);
+	offset += ((le32_to_cpu(h->bigdirnamelen) + 4) & ~3);
+	offset += dir->pos * sizeof(struct adfs_bigdirentry);
+
+	dir_memcpy(dir, offset, &bde, sizeof(struct adfs_bigdirentry));
+
+	obj->loadaddr = le32_to_cpu(bde.bigdirload);
+	obj->execaddr = le32_to_cpu(bde.bigdirexec);
+	obj->size     = le32_to_cpu(bde.bigdirlen);
+	obj->file_id  = le32_to_cpu(bde.bigdirindaddr);
+	obj->attr     = le32_to_cpu(bde.bigdirattr);
+	obj->name_len = le32_to_cpu(bde.bigdirobnamelen);
+
+	offset = offsetof(struct adfs_bigdirheader, bigdirname);
+	offset += ((le32_to_cpu(h->bigdirnamelen) + 4) & ~3);
+	offset += le32_to_cpu(h->bigdirentries) * sizeof(struct adfs_bigdirentry);
+	offset += le32_to_cpu(bde.bigdirobnameptr);
+
+	dir_memcpy(dir, offset, obj->name, obj->name_len);
+	for (i = 0; i < obj->name_len; i++)
+		if (obj->name[i] == '/')
+			obj->name[i] = '.';
+
+	dir->pos += 1;
+	ret = 0;
+out:
+	return ret;
+}
+
+static void
+adfs_fplus_free(struct adfs_dir *dir)
+{
+	int i;
+
+	for (i = 0; i < dir->nr_buffers; i++)
+		brelse(dir->bh[i]);
+	dir->sb = NULL;
+}
+
+struct adfs_dir_ops adfs_fplus_dir_ops = {
+	adfs_fplus_read,
+	adfs_fplus_setpos,
+	adfs_fplus_getnext,
+	NULL,
+	NULL,
+	NULL,
+	adfs_fplus_free
+};
diff --git a/fs/adfs/dir_fplus.h b/fs/adfs/dir_fplus.h
new file mode 100644
index 00000000000000..a65f65348d0c39
--- /dev/null
+++ b/fs/adfs/dir_fplus.h
@@ -0,0 +1,45 @@
+/*
+ *  linux/fs/adfs/dir_fplus.h
+ *
+ *  Copyright (C) 1999 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ *  Structures of directories on the F+ format disk
+ */
+
+#define ADFS_FPLUS_NAME_LEN	255
+
+#define BIGDIRSTARTNAME ('S' | 'B' << 8 | 'P' << 16 | 'r' << 24)
+#define BIGDIRENDNAME	('o' | 'v' << 8 | 'e' << 16 | 'n' << 24)
+
+struct adfs_bigdirheader {
+	__u8	startmasseq;
+	__u8	bigdirversion[3];
+	__u32	bigdirstartname;
+	__u32	bigdirnamelen;
+	__u32	bigdirsize;
+	__u32	bigdirentries;
+	__u32	bigdirnamesize;
+	__u32	bigdirparent;
+	char	bigdirname[1];
+};
+
+struct adfs_bigdirentry {
+	__u32	bigdirload;
+	__u32	bigdirexec;
+	__u32	bigdirlen;
+	__u32	bigdirindaddr;
+	__u32	bigdirattr;
+	__u32	bigdirobnamelen;
+	__u32	bigdirobnameptr;
+};
+
+struct adfs_bigdirtail {
+	__u32	bigdirendname;
+	__u8	bigdirendmasseq;
+	__u8	reserved[2];
+	__u8	bigdircheckbyte;
+};
diff --git a/fs/adfs/file.c b/fs/adfs/file.c
new file mode 100644
index 00000000000000..c00ebea8b14c50
--- /dev/null
+++ b/fs/adfs/file.c
@@ -0,0 +1,41 @@
+/*
+ *  linux/fs/adfs/file.c
+ *
+ * Copyright (C) 1997-1999 Russell King
+ * from:
+ *
+ *  linux/fs/ext2/file.c
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ *  from
+ *
+ *  linux/fs/minix/file.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  adfs regular file handling primitives           
+ */
+#include <linux/version.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/fcntl.h>
+#include <linux/sched.h>
+#include <linux/stat.h>
+
+#include "adfs.h"
+
+struct file_operations adfs_file_operations = {
+	llseek:		generic_file_llseek,
+	read:		generic_file_read,
+	mmap:		generic_file_mmap,
+	fsync:		file_fsync,
+	write:		generic_file_write,
+};
+
+struct inode_operations adfs_file_inode_operations = {
+	setattr:	adfs_notify_change,
+};
diff --git a/fs/adfs/inode.c b/fs/adfs/inode.c
new file mode 100644
index 00000000000000..22d9bfd2504979
--- /dev/null
+++ b/fs/adfs/inode.c
@@ -0,0 +1,378 @@
+/*
+ *  linux/fs/adfs/inode.c
+ *
+ *  Copyright (C) 1997-1999 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/version.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/adfs_fs.h>
+#include <linux/sched.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <linux/locks.h>
+#include <linux/mm.h>
+#include <linux/smp_lock.h>
+#include <linux/module.h>
+
+
+#include "adfs.h"
+
+/*
+ * Lookup/Create a block at offset 'block' into 'inode'.  We currently do
+ * not support creation of new blocks, so we return -EIO for this case.
+ */
+int
+adfs_get_block(struct inode *inode, long block, struct buffer_head *bh, int create)
+{
+	if (block < 0)
+		goto abort_negative;
+
+	if (!create) {
+		if (block >= inode->i_blocks)
+			goto abort_toobig;
+
+		block = __adfs_block_map(inode->i_sb, inode->i_ino, block);
+		if (block) {
+			bh->b_dev = inode->i_dev;
+			bh->b_blocknr = block;
+			bh->b_state |= (1UL << BH_Mapped);
+		}
+		return 0;
+	}
+	/* don't support allocation of blocks yet */
+	return -EIO;
+
+abort_negative:
+	adfs_error(inode->i_sb, "block %d < 0", block);
+	return -EIO;
+
+abort_toobig:
+	return 0;
+}
+
+static int adfs_writepage(struct page *page)
+{
+	return block_write_full_page(page, adfs_get_block);
+}
+
+static int adfs_readpage(struct file *file, struct page *page)
+{
+	return block_read_full_page(page, adfs_get_block);
+}
+
+static int adfs_prepare_write(struct file *file, struct page *page, unsigned int from, unsigned int to)
+{
+	return cont_prepare_write(page, from, to, adfs_get_block,
+		&page->mapping->host->u.adfs_i.mmu_private);
+}
+
+static int _adfs_bmap(struct address_space *mapping, long block)
+{
+	return generic_block_bmap(mapping, block, adfs_get_block);
+}
+
+static struct address_space_operations adfs_aops = {
+	readpage:	adfs_readpage,
+	writepage:	adfs_writepage,
+	sync_page:	block_sync_page,
+	prepare_write:	adfs_prepare_write,
+	commit_write:	generic_commit_write,
+	bmap:		_adfs_bmap
+};
+
+static inline unsigned int
+adfs_filetype(struct inode *inode)
+{
+	unsigned int type;
+
+	if (inode->u.adfs_i.stamped)
+		type = (inode->u.adfs_i.loadaddr >> 8) & 0xfff;
+	else
+		type = (unsigned int) -1;
+
+	return type;
+}
+
+/*
+ * Convert ADFS attributes and filetype to Linux permission.
+ */
+static umode_t
+adfs_atts2mode(struct super_block *sb, struct inode *inode)
+{
+	unsigned int filetype, attr = inode->u.adfs_i.attr;
+	umode_t mode, rmask;
+
+	if (attr & ADFS_NDA_DIRECTORY) {
+		mode = S_IRUGO & sb->u.adfs_sb.s_owner_mask;
+		return S_IFDIR | S_IXUGO | mode;
+	}
+
+	filetype = adfs_filetype(inode);
+
+	switch (filetype) {
+	case 0xfc0:	/* LinkFS */
+		return S_IFLNK|S_IRWXUGO;
+
+	case 0xfe6:	/* UnixExec */
+		rmask = S_IRUGO | S_IXUGO;
+		break;
+
+	default:
+		rmask = S_IRUGO;
+	}
+
+	mode = S_IFREG;
+
+	if (attr & ADFS_NDA_OWNER_READ)
+		mode |= rmask & sb->u.adfs_sb.s_owner_mask;
+
+	if (attr & ADFS_NDA_OWNER_WRITE)
+		mode |= S_IWUGO & sb->u.adfs_sb.s_owner_mask;
+
+	if (attr & ADFS_NDA_PUBLIC_READ)
+		mode |= rmask & sb->u.adfs_sb.s_other_mask;
+
+	if (attr & ADFS_NDA_PUBLIC_WRITE)
+		mode |= S_IWUGO & sb->u.adfs_sb.s_other_mask;
+	return mode;
+}
+
+/*
+ * Convert Linux permission to ADFS attribute.  We try to do the reverse
+ * of atts2mode, but there is not a 1:1 translation.
+ */
+static int
+adfs_mode2atts(struct super_block *sb, struct inode *inode)
+{
+	umode_t mode;
+	int attr;
+
+	/* FIXME: should we be able to alter a link? */
+	if (S_ISLNK(inode->i_mode))
+		return inode->u.adfs_i.attr;
+
+	if (S_ISDIR(inode->i_mode))
+		attr = ADFS_NDA_DIRECTORY;
+	else
+		attr = 0;
+
+	mode = inode->i_mode & sb->u.adfs_sb.s_owner_mask;
+	if (mode & S_IRUGO)
+		attr |= ADFS_NDA_OWNER_READ;
+	if (mode & S_IWUGO)
+		attr |= ADFS_NDA_OWNER_WRITE;
+
+	mode = inode->i_mode & sb->u.adfs_sb.s_other_mask;
+	mode &= ~sb->u.adfs_sb.s_owner_mask;
+	if (mode & S_IRUGO)
+		attr |= ADFS_NDA_PUBLIC_READ;
+	if (mode & S_IWUGO)
+		attr |= ADFS_NDA_PUBLIC_WRITE;
+
+	return attr;
+}
+
+/*
+ * Convert an ADFS time to Unix time.  ADFS has a 40-bit centi-second time
+ * referenced to 1 Jan 1900 (til 2248)
+ */
+static unsigned int
+adfs_adfs2unix_time(struct inode *inode)
+{
+	unsigned int high, low;
+
+	if (inode->u.adfs_i.stamped == 0)
+		return CURRENT_TIME;
+
+	high = inode->u.adfs_i.loadaddr << 24;
+	low  = inode->u.adfs_i.execaddr;
+
+	high |= low >> 8;
+	low  &= 255;
+
+	/* Files dated pre  01 Jan 1970 00:00:00. */
+	if (high < 0x336e996a)
+		return 0;
+
+	/* Files dated post 18 Jan 2038 03:14:05. */
+	if (high >= 0x656e9969)
+		return 0x7ffffffd;
+
+	/* discard 2208988800 (0x336e996a00) seconds of time */
+	high -= 0x336e996a;
+
+	/* convert 40-bit centi-seconds to 32-bit seconds */
+	return (((high % 100) << 8) + low) / 100 + (high / 100 << 8);
+}
+
+/*
+ * Convert an Unix time to ADFS time.  We only do this if the entry has a
+ * time/date stamp already.
+ */
+static void
+adfs_unix2adfs_time(struct inode *inode, unsigned int secs)
+{
+	unsigned int high, low;
+
+	if (inode->u.adfs_i.stamped) {
+		/* convert 32-bit seconds to 40-bit centi-seconds */
+		low  = (secs & 255) * 100;
+		high = (secs / 256) * 100 + (low >> 8) + 0x336e996a;
+
+		inode->u.adfs_i.loadaddr = (high >> 24) |
+				(inode->u.adfs_i.loadaddr & ~0xff);
+		inode->u.adfs_i.execaddr = (low & 255) | (high << 8);
+	}
+}
+
+/*
+ * Fill in the inode information from the object information.
+ *
+ * Note that this is an inode-less filesystem, so we can't use the inode
+ * number to reference the metadata on the media.  Instead, we use the
+ * inode number to hold the object ID, which in turn will tell us where
+ * the data is held.  We also save the parent object ID, and with these
+ * two, we can locate the metadata.
+ *
+ * This does mean that we rely on an objects parent remaining the same at
+ * all times - we cannot cope with a cross-directory rename (yet).
+ */
+struct inode *
+adfs_iget(struct super_block *sb, struct object_info *obj)
+{
+	struct inode *inode;
+
+	inode = new_inode(sb);
+	if (!inode)
+		goto out;
+
+	inode->i_version = ++event;
+	inode->i_uid	 = sb->u.adfs_sb.s_uid;
+	inode->i_gid	 = sb->u.adfs_sb.s_gid;
+	inode->i_ino	 = obj->file_id;
+	inode->i_size	 = obj->size;
+	inode->i_nlink	 = 2;
+	inode->i_blksize = PAGE_SIZE;
+	inode->i_blocks	 = (inode->i_size + sb->s_blocksize - 1) >>
+			    sb->s_blocksize_bits;
+
+	/*
+	 * we need to save the parent directory ID so that
+	 * write_inode can update the directory information
+	 * for this file.  This will need special handling
+	 * for cross-directory renames.
+	 */
+	inode->u.adfs_i.parent_id = obj->parent_id;
+	inode->u.adfs_i.loadaddr  = obj->loadaddr;
+	inode->u.adfs_i.execaddr  = obj->execaddr;
+	inode->u.adfs_i.attr      = obj->attr;
+	inode->u.adfs_i.stamped	  = ((obj->loadaddr & 0xfff00000) == 0xfff00000);
+
+	inode->i_mode	 = adfs_atts2mode(sb, inode);
+	inode->i_mtime	 =
+	inode->i_atime	 =
+	inode->i_ctime	 = adfs_adfs2unix_time(inode);
+
+	if (S_ISDIR(inode->i_mode)) {
+		inode->i_op	= &adfs_dir_inode_operations;
+		inode->i_fop	= &adfs_dir_operations;
+	} else if (S_ISREG(inode->i_mode)) {
+		inode->i_op	= &adfs_file_inode_operations;
+		inode->i_fop	= &adfs_file_operations;
+		inode->i_mapping->a_ops = &adfs_aops;
+		inode->u.adfs_i.mmu_private = inode->i_size;
+	}
+
+	insert_inode_hash(inode);
+
+out:
+	return inode;
+}
+
+/*
+ * Validate and convert a changed access mode/time to their ADFS equivalents.
+ * adfs_write_inode will actually write the information back to the directory
+ * later.
+ */
+int
+adfs_notify_change(struct dentry *dentry, struct iattr *attr)
+{
+	struct inode *inode = dentry->d_inode;
+	struct super_block *sb = inode->i_sb;
+	unsigned int ia_valid = attr->ia_valid;
+	int error;
+
+	error = inode_change_ok(inode, attr);
+
+	/*
+	 * we can't change the UID or GID of any file -
+	 * we have a global UID/GID in the superblock
+	 */
+	if ((ia_valid & ATTR_UID && attr->ia_uid != sb->u.adfs_sb.s_uid) ||
+	    (ia_valid & ATTR_GID && attr->ia_gid != sb->u.adfs_sb.s_gid))
+		error = -EPERM;
+
+	if (error)
+		goto out;
+
+	if (ia_valid & ATTR_SIZE)
+		error = vmtruncate(inode, attr->ia_size);
+
+	if (error)
+		goto out;
+
+	if (ia_valid & ATTR_MTIME) {
+		inode->i_mtime = attr->ia_mtime;
+		adfs_unix2adfs_time(inode, attr->ia_mtime);
+	}
+	/*
+	 * FIXME: should we make these == to i_mtime since we don't
+	 * have the ability to represent them in our filesystem?
+	 */
+	if (ia_valid & ATTR_ATIME)
+		inode->i_atime = attr->ia_atime;
+	if (ia_valid & ATTR_CTIME)
+		inode->i_ctime = attr->ia_ctime;
+	if (ia_valid & ATTR_MODE) {
+		inode->u.adfs_i.attr = adfs_mode2atts(sb, inode);
+		inode->i_mode = adfs_atts2mode(sb, inode);
+	}
+
+	/*
+	 * FIXME: should we be marking this inode dirty even if
+	 * we don't have any metadata to write back?
+	 */
+	if (ia_valid & (ATTR_SIZE | ATTR_MTIME | ATTR_MODE))
+		mark_inode_dirty(inode);
+out:
+	return error;
+}
+
+/*
+ * write an existing inode back to the directory, and therefore the disk.
+ * The adfs-specific inode data has already been updated by
+ * adfs_notify_change()
+ */
+void adfs_write_inode(struct inode *inode, int unused)
+{
+	struct super_block *sb = inode->i_sb;
+	struct object_info obj;
+
+	lock_kernel();
+	obj.file_id	= inode->i_ino;
+	obj.name_len	= 0;
+	obj.parent_id	= inode->u.adfs_i.parent_id;
+	obj.loadaddr	= inode->u.adfs_i.loadaddr;
+	obj.execaddr	= inode->u.adfs_i.execaddr;
+	obj.attr	= inode->u.adfs_i.attr;
+	obj.size	= inode->i_size;
+
+	adfs_dir_update(sb, &obj);
+	unlock_kernel();
+}
+MODULE_LICENSE("GPL");
diff --git a/fs/adfs/map.c b/fs/adfs/map.c
new file mode 100644
index 00000000000000..ce36fcd2512434
--- /dev/null
+++ b/fs/adfs/map.c
@@ -0,0 +1,256 @@
+/*
+ *  linux/fs/adfs/map.c
+ *
+ *  Copyright (C) 1997-1999 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/version.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/adfs_fs.h>
+#include <linux/spinlock.h>
+
+#include "adfs.h"
+
+/*
+ * For the future...
+ */
+static rwlock_t adfs_map_lock;
+
+#define GET_FRAG_ID(_map,_start,_idmask)				\
+	({								\
+		unsigned long _v2, _frag;				\
+		unsigned int _tmp;					\
+		_tmp = _start >> 5;					\
+		_frag = le32_to_cpu(_map[_tmp]);			\
+		_v2   = le32_to_cpu(_map[_tmp + 1]);			\
+		_tmp = start & 31;					\
+		_frag = (_frag >> _tmp) | (_v2 << (32 - _tmp));		\
+		_frag & _idmask;					\
+	})
+
+/*
+ * return the map bit offset of the fragment frag_id in
+ * the zone dm.
+ * Note that the loop is optimised for best asm code -
+ * look at the output of:
+ *  gcc -D__KERNEL__ -O2 -I../../include -o - -S map.c
+ */
+static int
+lookup_zone(const struct adfs_discmap *dm, const unsigned int idlen,
+	    const unsigned int frag_id, unsigned int *offset)
+{
+	const unsigned int mapsize = dm->dm_endbit;
+	const unsigned int idmask = (1 << idlen) - 1;
+	unsigned long *map = ((unsigned long *)dm->dm_bh->b_data) + 1;
+	unsigned int start = dm->dm_startbit;
+	unsigned int mapptr;
+
+	do {
+		unsigned long frag;
+
+		frag = GET_FRAG_ID(map, start, idmask);
+		mapptr = start + idlen;
+
+		/*
+		 * find end of fragment
+		 */
+		{
+			unsigned long v2;
+
+			while ((v2 = map[mapptr >> 5] >> (mapptr & 31)) == 0) {
+				mapptr = (mapptr & ~31) + 32;
+				if (mapptr >= mapsize)
+					goto error;
+			}
+
+			mapptr += 1 + ffz(~v2);
+		}
+
+		if (frag == frag_id)
+			goto found;
+again:
+		start = mapptr;
+	} while (mapptr < mapsize);
+
+error:
+	return -1;
+
+found:
+	{
+		int length = mapptr - start;
+		if (*offset >= length) {
+			*offset -= length;
+			goto again;
+		}
+	}
+	return start + *offset;
+}
+
+/*
+ * Scan the free space map, for this zone, calculating the total
+ * number of map bits in each free space fragment.
+ *
+ * Note: idmask is limited to 15 bits [3.2]
+ */
+static unsigned int
+scan_free_map(struct adfs_sb_info *asb, struct adfs_discmap *dm)
+{
+	const unsigned int mapsize = dm->dm_endbit + 32;
+	const unsigned int idlen  = asb->s_idlen;
+	const unsigned int frag_idlen = idlen <= 15 ? idlen : 15;
+	const unsigned int idmask = (1 << frag_idlen) - 1;
+	unsigned long *map = (unsigned long *)dm->dm_bh->b_data;
+	unsigned int start = 8, mapptr;
+	unsigned long frag;
+	unsigned long total = 0;
+
+	/*
+	 * get fragment id
+	 */
+	frag = GET_FRAG_ID(map, start, idmask);
+
+	/*
+	 * If the freelink is null, then no free fragments
+	 * exist in this zone.
+	 */
+	if (frag == 0)
+		return 0;
+
+	do {
+		start += frag;
+
+		/*
+		 * get fragment id
+		 */
+		frag = GET_FRAG_ID(map, start, idmask);
+		mapptr = start + idlen;
+
+		/*
+		 * find end of fragment
+		 */
+		{
+			unsigned long v2;
+
+			while ((v2 = map[mapptr >> 5] >> (mapptr & 31)) == 0) {
+				mapptr = (mapptr & ~31) + 32;
+				if (mapptr >= mapsize)
+					goto error;
+			}
+
+			mapptr += 1 + ffz(~v2);
+		}
+
+		total += mapptr - start;
+	} while (frag >= idlen + 1);
+
+	if (frag != 0)
+		printk(KERN_ERR "adfs: undersized free fragment\n");
+
+	return total;
+error:
+	printk(KERN_ERR "adfs: oversized free fragment\n");
+	return 0;
+}
+
+static int
+scan_map(struct adfs_sb_info *asb, unsigned int zone,
+	 const unsigned int frag_id, unsigned int mapoff)
+{
+	const unsigned int idlen = asb->s_idlen;
+	struct adfs_discmap *dm, *dm_end;
+	int result;
+
+	dm	= asb->s_map + zone;
+	zone	= asb->s_map_size;
+	dm_end	= asb->s_map + zone;
+
+	do {
+		result = lookup_zone(dm, idlen, frag_id, &mapoff);
+
+		if (result != -1)
+			goto found;
+
+		dm ++;
+		if (dm == dm_end)
+			dm = asb->s_map;
+	} while (--zone > 0);
+
+	return -1;
+found:
+	result -= dm->dm_startbit;
+	result += dm->dm_startblk;
+
+	return result;
+}
+
+/*
+ * calculate the amount of free blocks in the map.
+ *
+ *              n=1
+ *  total_free = E(free_in_zone_n)
+ *              nzones
+ */
+unsigned int
+adfs_map_free(struct super_block *sb)
+{
+	struct adfs_sb_info *asb = &sb->u.adfs_sb;
+	struct adfs_discmap *dm;
+	unsigned int total = 0;
+	unsigned int zone;
+
+	dm   = asb->s_map;
+	zone = asb->s_map_size;
+
+	do {
+		total += scan_free_map(asb, dm++);
+	} while (--zone > 0);
+
+	return signed_asl(total, asb->s_map2blk);
+}
+
+int adfs_map_lookup (struct super_block *sb, int frag_id, int offset)
+{
+	struct adfs_sb_info *asb = &sb->u.adfs_sb;
+	unsigned int zone, mapoff;
+	int result;
+
+	/*
+	 * map & root fragment is special - it starts in the center of the
+	 * disk.  The other fragments start at zone (frag / ids_per_zone)
+	 */
+	if (frag_id == ADFS_ROOT_FRAG)
+		zone = asb->s_map_size >> 1;
+	else
+		zone = frag_id / asb->s_ids_per_zone;
+
+	if (zone >= asb->s_map_size)
+		goto bad_fragment;
+
+	/* Convert sector offset to map offset */
+	mapoff = signed_asl(offset, -asb->s_map2blk);
+
+	read_lock(&adfs_map_lock);
+	result = scan_map(asb, zone, frag_id, mapoff);
+	read_unlock(&adfs_map_lock);
+
+	if (result > 0) {
+		unsigned int secoff;
+
+		/* Calculate sector offset into map block */
+		secoff = offset - signed_asl(mapoff, asb->s_map2blk);
+		return secoff + signed_asl(result, asb->s_map2blk);
+	}
+
+	adfs_error(sb, "fragment %04X at offset %d not found in map",
+		   frag_id, offset);
+	return 0;
+
+bad_fragment:
+	adfs_error(sb, "fragment %X is invalid (zone = %d, max = %d)",
+		   frag_id, zone, asb->s_map_size);
+	return 0;
+}
diff --git a/fs/adfs/super.c b/fs/adfs/super.c
new file mode 100644
index 00000000000000..f1af56308a1ed7
--- /dev/null
+++ b/fs/adfs/super.c
@@ -0,0 +1,458 @@
+/*
+ *  linux/fs/adfs/super.c
+ *
+ *  Copyright (C) 1997-1999 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/adfs_fs.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <linux/locks.h>
+#include <linux/init.h>
+
+#include <asm/bitops.h>
+#include <asm/uaccess.h>
+#include <asm/system.h>
+
+#include <stdarg.h>
+
+#include "adfs.h"
+#include "dir_f.h"
+#include "dir_fplus.h"
+
+void __adfs_error(struct super_block *sb, const char *function, const char *fmt, ...)
+{
+	char error_buf[128];
+	va_list args;
+
+	va_start(args, fmt);
+	vsprintf(error_buf, fmt, args);
+	va_end(args);
+
+	printk(KERN_CRIT "ADFS-fs error (device %s)%s%s: %s\n",
+		bdevname(sb->s_dev), function ? ": " : "",
+		function ? function : "", error_buf);
+}
+
+static int adfs_checkdiscrecord(struct adfs_discrecord *dr)
+{
+	int i;
+
+	/* sector size must be 256, 512 or 1024 bytes */
+	if (dr->log2secsize != 8 &&
+	    dr->log2secsize != 9 &&
+	    dr->log2secsize != 10)
+		return 1;
+
+	/* idlen must be at least log2secsize + 3 */
+	if (dr->idlen < dr->log2secsize + 3)
+		return 1;
+
+	/* we cannot have such a large disc that we
+	 * are unable to represent sector offsets in
+	 * 32 bits.  This works out at 2.0 TB.
+	 */
+	if (dr->disc_size_high >> dr->log2secsize)
+		return 1;
+
+	/*
+	 * The following checks are not required for F+
+	 * stage 1.
+	 */
+#if 0
+	/* idlen must be smaller be no greater than 15 */
+	if (dr->idlen > 15)
+		return 1;
+
+	/* nzones must be less than 128 for the root
+	 * directory to be addressable
+	 */
+	if (dr->nzones >= 128 && dr->nzones_high == 0)
+		return 1;
+
+	/* root must be of the form 0x2.. */
+	if ((le32_to_cpu(dr->root) & 0xffffff00) != 0x00000200)
+		return 1;
+#else
+	/*
+	 * Stage 2 F+ does not require the following check
+	 */
+#if 0
+	/* idlen must be no greater than 16 v2 [1.0] */
+	if (dr->idlen > 16)
+		return 1;
+
+	/* we can't handle F+ discs yet */
+	if (dr->format_version || dr->root_size)
+		return 1;
+
+#else
+	/* idlen must be no greater than 19 v2 [1.0] */
+	if (dr->idlen > 19)
+		return 1;
+#endif
+#endif
+
+	/* reserved bytes should be zero */
+	for (i = 0; i < sizeof(dr->unused52); i++)
+		if (dr->unused52[i] != 0)
+			return 1;
+
+	return 0;
+}
+
+static unsigned char adfs_calczonecheck(struct super_block *sb, unsigned char *map)
+{
+	unsigned int v0, v1, v2, v3;
+	int i;
+
+	v0 = v1 = v2 = v3 = 0;
+	for (i = sb->s_blocksize - 4; i; i -= 4) {
+		v0 += map[i]     + (v3 >> 8);
+		v3 &= 0xff;
+		v1 += map[i + 1] + (v0 >> 8);
+		v0 &= 0xff;
+		v2 += map[i + 2] + (v1 >> 8);
+		v1 &= 0xff;
+		v3 += map[i + 3] + (v2 >> 8);
+		v2 &= 0xff;
+	}
+	v0 +=           v3 >> 8;
+	v1 += map[1] + (v0 >> 8);
+	v2 += map[2] + (v1 >> 8);
+	v3 += map[3] + (v2 >> 8);
+
+	return v0 ^ v1 ^ v2 ^ v3;
+}
+
+static int adfs_checkmap(struct super_block *sb, struct adfs_discmap *dm)
+{
+	unsigned char crosscheck = 0, zonecheck = 1;
+	int i;
+
+	for (i = 0; i < sb->u.adfs_sb.s_map_size; i++) {
+		unsigned char *map;
+
+		map = dm[i].dm_bh->b_data;
+
+		if (adfs_calczonecheck(sb, map) != map[0]) {
+			adfs_error(sb, "zone %d fails zonecheck", i);
+			zonecheck = 0;
+		}
+		crosscheck ^= map[3];
+	}
+	if (crosscheck != 0xff)
+		adfs_error(sb, "crosscheck != 0xff");
+	return crosscheck == 0xff && zonecheck;
+}
+
+static void adfs_put_super(struct super_block *sb)
+{
+	int i;
+
+	for (i = 0; i < sb->u.adfs_sb.s_map_size; i++)
+		brelse(sb->u.adfs_sb.s_map[i].dm_bh);
+	kfree(sb->u.adfs_sb.s_map);
+}
+
+static int parse_options(struct super_block *sb, char *options)
+{
+	char *value, *opt;
+
+	if (!options)
+		return 0;
+
+	for (opt = strtok(options, ","); opt != NULL; opt = strtok(NULL, ",")) {
+		value = strchr(opt, '=');
+		if (value)
+			*value++ = '\0';
+
+		if (!strcmp(opt, "uid")) {	/* owner of all files */
+			if (!value || !*value)
+				return -EINVAL;
+			sb->u.adfs_sb.s_uid = simple_strtoul(value, &value, 0);
+			if (*value)
+				return -EINVAL;
+		} else
+		if (!strcmp(opt, "gid")) {	/* group owner of all files */
+			if (!value || !*value)
+				return -EINVAL;
+			sb->u.adfs_sb.s_gid = simple_strtoul(value, &value, 0);
+			if (*value)
+				return -EINVAL;
+		} else
+		if (!strcmp(opt, "ownmask")) {	/* owner permission mask */
+			if (!value || !*value)
+				return -EINVAL;
+			sb->u.adfs_sb.s_owner_mask = simple_strtoul(value, &value, 8);
+			if (*value)
+				return -EINVAL;
+		} else
+		if (!strcmp(opt, "othmask")) {	/* others permission mask */
+			if (!value || !*value)
+				return -EINVAL;
+			sb->u.adfs_sb.s_other_mask = simple_strtoul(value, &value, 8);
+			if (*value)
+				return -EINVAL;
+		} else {			/* eh? say again. */
+			printk("ADFS-fs: unrecognised mount option %s\n", opt);
+			return -EINVAL;
+		}
+	}
+	return 0;
+}
+
+static int adfs_remount(struct super_block *sb, int *flags, char *data)
+{
+	return parse_options(sb, data);
+}
+
+static int adfs_statfs(struct super_block *sb, struct statfs *buf)
+{
+	struct adfs_sb_info *asb = &sb->u.adfs_sb;
+
+	buf->f_type    = ADFS_SUPER_MAGIC;
+	buf->f_namelen = asb->s_namelen;
+	buf->f_bsize   = sb->s_blocksize;
+	buf->f_blocks  = asb->s_size;
+	buf->f_files   = asb->s_ids_per_zone * asb->s_map_size;
+	buf->f_bavail  =
+	buf->f_bfree   = adfs_map_free(sb);
+	buf->f_ffree   = buf->f_bfree * buf->f_files / buf->f_blocks;
+
+	return 0;
+}
+
+static struct super_operations adfs_sops = {
+	write_inode:	adfs_write_inode,
+	put_super:	adfs_put_super,
+	statfs:		adfs_statfs,
+	remount_fs:	adfs_remount,
+};
+
+static struct adfs_discmap *adfs_read_map(struct super_block *sb, struct adfs_discrecord *dr)
+{
+	struct adfs_discmap *dm;
+	unsigned int map_addr, zone_size, nzones;
+	int i, zone;
+
+	nzones    = sb->u.adfs_sb.s_map_size;
+	zone_size = (8 << dr->log2secsize) - le16_to_cpu(dr->zone_spare);
+	map_addr  = (nzones >> 1) * zone_size -
+		     ((nzones > 1) ? ADFS_DR_SIZE_BITS : 0);
+	map_addr  = signed_asl(map_addr, sb->u.adfs_sb.s_map2blk);
+
+	sb->u.adfs_sb.s_ids_per_zone = zone_size / (sb->u.adfs_sb.s_idlen + 1);
+
+	dm = kmalloc(nzones * sizeof(*dm), GFP_KERNEL);
+	if (dm == NULL) {
+		adfs_error(sb, "not enough memory");
+		return NULL;
+	}
+
+	for (zone = 0; zone < nzones; zone++, map_addr++) {
+		dm[zone].dm_startbit = 0;
+		dm[zone].dm_endbit   = zone_size;
+		dm[zone].dm_startblk = zone * zone_size - ADFS_DR_SIZE_BITS;
+		dm[zone].dm_bh       = sb_bread(sb, map_addr);
+
+		if (!dm[zone].dm_bh) {
+			adfs_error(sb, "unable to read map");
+			goto error_free;
+		}
+	}
+
+	/* adjust the limits for the first and last map zones */
+	i = zone - 1;
+	dm[0].dm_startblk = 0;
+	dm[0].dm_startbit = ADFS_DR_SIZE_BITS;
+	dm[i].dm_endbit   = (dr->disc_size_high << (32 - dr->log2bpmb)) +
+			    (dr->disc_size >> dr->log2bpmb) +
+			    (ADFS_DR_SIZE_BITS - i * zone_size);
+
+	if (adfs_checkmap(sb, dm))
+		return dm;
+
+	adfs_error(sb, NULL, "map corrupted");
+
+error_free:
+	while (--zone >= 0)
+		brelse(dm[zone].dm_bh);
+
+	kfree(dm);
+	return NULL;
+}
+
+static inline unsigned long adfs_discsize(struct adfs_discrecord *dr, int block_bits)
+{
+	unsigned long discsize;
+
+	discsize  = le32_to_cpu(dr->disc_size_high) << (32 - block_bits);
+	discsize |= le32_to_cpu(dr->disc_size) >> block_bits;
+
+	return discsize;
+}
+
+struct super_block *adfs_read_super(struct super_block *sb, void *data, int silent)
+{
+	struct adfs_discrecord *dr;
+	struct buffer_head *bh;
+	struct object_info root_obj;
+	unsigned char *b_data;
+	kdev_t dev = sb->s_dev;
+
+	/* set default options */
+	sb->u.adfs_sb.s_uid = 0;
+	sb->u.adfs_sb.s_gid = 0;
+	sb->u.adfs_sb.s_owner_mask = S_IRWXU;
+	sb->u.adfs_sb.s_other_mask = S_IRWXG | S_IRWXO;
+
+	if (parse_options(sb, data))
+		goto error;
+
+	sb->s_blocksize = BLOCK_SIZE;
+	set_blocksize(dev, BLOCK_SIZE);
+	if (!(bh = sb_bread(sb, ADFS_DISCRECORD / BLOCK_SIZE))) {
+		adfs_error(sb, "unable to read superblock");
+		goto error;
+	}
+
+	b_data = bh->b_data + (ADFS_DISCRECORD % BLOCK_SIZE);
+
+	if (adfs_checkbblk(b_data)) {
+		if (!silent)
+			printk("VFS: Can't find an adfs filesystem on dev "
+				"%s.\n", bdevname(dev));
+		goto error_free_bh;
+	}
+
+	dr = (struct adfs_discrecord *)(b_data + ADFS_DR_OFFSET);
+
+	/*
+	 * Do some sanity checks on the ADFS disc record
+	 */
+	if (adfs_checkdiscrecord(dr)) {
+		if (!silent)
+			printk("VPS: Can't find an adfs filesystem on dev "
+				"%s.\n", bdevname(dev));
+		goto error_free_bh;
+	}
+
+	sb->s_blocksize_bits = dr->log2secsize;
+	sb->s_blocksize = 1 << sb->s_blocksize_bits;
+	if (sb->s_blocksize != BLOCK_SIZE &&
+	    (sb->s_blocksize == 512 || sb->s_blocksize == 1024 ||
+	     sb->s_blocksize == 2048 || sb->s_blocksize == 4096)) {
+
+		brelse(bh);
+		set_blocksize(dev, sb->s_blocksize);
+		bh = sb_bread(sb, ADFS_DISCRECORD / sb->s_blocksize);
+		if (!bh) {
+			adfs_error(sb, "couldn't read superblock on "
+				"2nd try.");
+			goto error;
+		}
+		b_data = bh->b_data + (ADFS_DISCRECORD % sb->s_blocksize);
+		if (adfs_checkbblk(b_data)) {
+			adfs_error(sb, "disc record mismatch, very weird!");
+			goto error_free_bh;
+		}
+		dr = (struct adfs_discrecord *)(b_data + ADFS_DR_OFFSET);
+	}
+	if (sb->s_blocksize != bh->b_size) {
+		if (!silent)
+			printk(KERN_ERR "VFS: Unsupported blocksize on dev "
+				"%s.\n", bdevname(dev));
+		goto error_free_bh;
+	}
+
+	/*
+	 * blocksize on this device should now be set to the ADFS log2secsize
+	 */
+
+	sb->s_magic		 = ADFS_SUPER_MAGIC;
+	sb->u.adfs_sb.s_idlen	 = dr->idlen;
+	sb->u.adfs_sb.s_map_size = dr->nzones | (dr->nzones_high << 8);
+	sb->u.adfs_sb.s_map2blk	 = dr->log2bpmb - dr->log2secsize;
+	sb->u.adfs_sb.s_size     = adfs_discsize(dr, sb->s_blocksize_bits);
+	sb->u.adfs_sb.s_version  = dr->format_version;
+	sb->u.adfs_sb.s_log2sharesize = dr->log2sharesize;
+	
+	sb->u.adfs_sb.s_map = adfs_read_map(sb, dr);
+	if (!sb->u.adfs_sb.s_map)
+		goto error_free_bh;
+
+	brelse(bh);
+
+	/*
+	 * set up enough so that we can read an inode
+	 */
+	sb->s_op = &adfs_sops;
+
+	dr = (struct adfs_discrecord *)(sb->u.adfs_sb.s_map[0].dm_bh->b_data + 4);
+
+	root_obj.parent_id = root_obj.file_id = le32_to_cpu(dr->root);
+	root_obj.name_len  = 0;
+	root_obj.loadaddr  = 0;
+	root_obj.execaddr  = 0;
+	root_obj.size	   = ADFS_NEWDIR_SIZE;
+	root_obj.attr	   = ADFS_NDA_DIRECTORY   | ADFS_NDA_OWNER_READ |
+			     ADFS_NDA_OWNER_WRITE | ADFS_NDA_PUBLIC_READ;
+
+	/*
+	 * If this is a F+ disk with variable length directories,
+	 * get the root_size from the disc record.
+	 */
+	if (sb->u.adfs_sb.s_version) {
+		root_obj.size = dr->root_size;
+		sb->u.adfs_sb.s_dir     = &adfs_fplus_dir_ops;
+		sb->u.adfs_sb.s_namelen = ADFS_FPLUS_NAME_LEN;
+	} else {
+		sb->u.adfs_sb.s_dir     = &adfs_f_dir_ops;
+		sb->u.adfs_sb.s_namelen = ADFS_F_NAME_LEN;
+	}
+
+	sb->s_root = d_alloc_root(adfs_iget(sb, &root_obj));
+	if (!sb->s_root) {
+		int i;
+
+		for (i = 0; i < sb->u.adfs_sb.s_map_size; i++)
+			brelse(sb->u.adfs_sb.s_map[i].dm_bh);
+		kfree(sb->u.adfs_sb.s_map);
+		adfs_error(sb, "get root inode failed\n");
+		goto error;
+	} else
+		sb->s_root->d_op = &adfs_dentry_operations;
+	return sb;
+
+error_free_bh:
+	brelse(bh);
+error:
+	return NULL;
+}
+
+static DECLARE_FSTYPE_DEV(adfs_fs_type, "adfs", adfs_read_super);
+
+static int __init init_adfs_fs(void)
+{
+	return register_filesystem(&adfs_fs_type);
+}
+
+static void __exit exit_adfs_fs(void)
+{
+	unregister_filesystem(&adfs_fs_type);
+}
+
+EXPORT_NO_SYMBOLS;
+
+module_init(init_adfs_fs)
+module_exit(exit_adfs_fs)
diff --git a/fs/affs/Changes b/fs/affs/Changes
new file mode 100644
index 00000000000000..ee63080031678c
--- /dev/null
+++ b/fs/affs/Changes
@@ -0,0 +1,338 @@
+(Note: I consider version numbers as cheap. That means
+that I do not like numbers like 0.1 and the like for
+things that can be used since quite some time. But
+then, 3.1 doesn't mean 'perfectly stable', too.)
+
+Known bugs:
+-----------
+
+- Doesn't work on the alpha. The only 64/32-bit
+  problem that I'm aware of (pointer/int conversion
+  in readdir()) gives compiler warnings but is
+  apparently not causing the failure, as directory
+  reads basically work (but all files are of size 0).
+  Alas, I've got no alpha to debug. :-(
+
+- The partition checker (drivers/block/genhd.c)
+  doesn't work with devices which have 256 byte
+  blocks (some very old SCSI drives). 
+
+- The feature to automatically make the fs clean
+  might leave a trashed file system with the
+  bitmap flag set valid.
+
+- When a file is truncated to a size that is not
+  a multiple of the blocksize, the rest of the
+  last allocated block is not cleared. Well,
+  this fs never claimed to be Posix conformant.
+
+Please direct bug reports to: zippel@linux-m68k.org
+
+Version 3.19
+------------
+
+- sizeof changes from Kernel Janitor Project
+- several bug fixes found with fsx
+
+Version 3.18
+------------
+
+- change to global min macro + warning fixes
+- add module tags
+
+Version 3.17
+------------
+
+- locking fixes
+- wrong sign in __affs_hash_dentry
+- remove unnecessary check in affs_new_inode
+- enable international mode for dircache fs
+
+Version 3.16
+------------
+
+- use mark_buffer_dirty_inode instead of mark_buffer_dirty.
+- introduce affs_lock_{link|dir|ext}.
+
+Version 3.15
+------------
+
+- disable link to directories until we can properly support them.
+- locking fixes for link creation/removal.
+
+Version 3.14
+------------
+
+- correctly cut off long file names for compares
+- correctly initialize s_last_bmap
+
+Version 3.13
+------------
+
+Major cleanup for 2.4 [Roman Zippel]
+- new extended block handling
+- new bitmap allocation functions
+- locking should be safe for the future
+- cleanup of some interfaces
+
+Version 3.12
+------------
+
+more 2.4 fixes: [Roman Zippel]
+- s_lock changes
+- increased getblock mess
+- clear meta blocks 
+
+Version 3.11
+------------
+
+- Converted to use 2.3.x page cache [Dave Jones <dave@powertweak.com>]
+- Corruption in truncate() bugfix [Ken Tyler <kent@werple.net.au>]
+
+Version 3.10
+------------
+
+- Changed partition checker to allow devices
+  with physical blocks != 512 bytes.
+
+- The partition checker now also ignores the
+  word at 0xd0 that Windows likes to write to.
+
+Version 3.9
+-----------
+
+- Moved cleanup from release_file() to put_inode().
+  This makes the first one obsolete.
+
+- truncate() zeroes the unused remainder of a
+  partially used last block when a file is truncated.
+  It also marks the inode dirty now (which is not
+  really necessary as notify_change() will do
+  it anyway).
+
+- Added a few comments, fixed some typos (and
+  introduced some new ones), made the debug messages
+  more consistent. Changed a bad example in the
+  doc file (affs.txt).
+
+- Sets the NOEXEC flag in read_super() for old file
+  systems, since you can't run programs on them.
+
+Version 3.8
+-----------
+Bill Hawes kindly reviewed the affs and sent me the
+patches he did. They're marked (BH). Thanks, Bill!
+
+- Cleanup of error handling in read_super().
+  Didn't release all resources in case of an
+  error. (BH)
+
+- put_inode() releases the ext cache only if it's
+  no longer needed. (BH)
+
+- One set of dentry callbacks is enough. (BH)
+
+- Cleanup of error handling in namei.c. (BH)
+
+- Cleanup of error handling in file.c. (BH)
+
+- The original blocksize of the device is
+  restored when the fs is unmounted. (BH)
+
+- getblock() did not invalidate the key cache
+  when it allocated a new block.
+
+- Removed some unnecessary locks as Bill
+  suggested.
+
+- Simplified match_name(), changed all hashing
+  and case insensitive name comparisons to use
+  uppercase. This makes the tolower() routines
+  obsolete.
+
+- Added mount option 'mufs' to force muFS
+  uid/gid interpretation.
+
+- File mode changes were not updated on disk.
+  This was fixed before, but somehow got lost.
+
+Version 3.7
+-----------
+
+- Added dentry callbacks to allow the dcache to
+  operate case insensitive and length ignorant
+  like the affs itself.
+
+- getblock() didn't update the lastblock field in the
+  inode if the fs was not an OFS. This bug only shows
+  up if a file was enlarged via truncate() and there
+  was not enough space.
+
+- Remove some more superfluous code left over from
+  the old link days ...
+
+- Fixed some oversights which were in patch 2.1.78.
+
+- Fixed a few typos.
+
+Version 3.6
+-----------
+
+- dentry changes. (Thanks to Jes Sorensen for his help.)
+
+- Fixed bug in balloc(): Superblock was not set dirty after
+  the bitmap was changed, so the bitmap wasn't sync'd.
+
+- Fixed nasty bug in find_new_zone(): If the current
+  zone number was zero, the loop didn't terminate,
+  causing a solid lock-up.
+
+- Removed support for old-style directory reads.
+
+- Fixed bug in add_entry(): When doing a sorted insert,
+  the pointer to the next entry in the hash chain wasn't
+  correctly byte-swapped. Since most of the users of the
+  affs use it on a 68k, they didn't notice. But why did
+  I not find this during my tests?
+
+- Fixed some oversights (version wasn't updated on some
+  directory changes).
+
+- Handling of hard links rewritten. To the VFS
+  they appear now as normal Unix links. They are
+  now resolved only once in lookup(). The backside
+  is that unlink(), rename() and rmdir() have to
+  be smart about them, but the result is worth the
+  effort. This also led to some code cleanup.
+
+- Changed name type to unsigned char; the test for
+  invalid filenames didn't work correctly.
+  (Thanks to Michael Krause for pointing at this.)
+
+- Changed mapping of executable flag.
+
+- Changed all network byte-order macros to the
+  recommended ones.
+
+- Added a remount function, so attempts to remount
+  a dircache filesystem or one with errors read/write
+  can be trapped. Previously, ro remounts didn't
+  flush the super block, and rw remounts didn't
+  create allocation zones ...
+
+- Call shrink_dcache_parent() in rmdir().
+  (Thanks to Bill Hawes.)
+
+- Permission checks in unlink().
+
+- Allow mounting of volumes with superfluous
+  bitmap pointers read only, also allows them
+  to be remounted read/write.
+
+- Owner/Group defaults now to the fs user (i.e.
+  the one that mounted it) instead of root. This
+  obsoletes the mount options uid and gid.
+
+- Argument to volume option could overflow the
+  name buffer. It is now silently truncated to
+  30 characters. (Damn it! This kind of bug
+  is too embarrassing.)
+
+- Split inode.c into 2 files, the superblock
+  routines desperately wanted their own file.
+
+- truncate() didn't allocate an extension block
+  cache. If a file was extended by means of
+  truncate(), this led to an Oops.
+
+- fsuser is now checked last.
+
+- rename() will not ignore changes in filename
+  casing any more (though mv(1) still won't allow
+  you to do "mv oldname OldName").
+
+Version 3.5
+-----------
+
+- Extension block caches are now allocated on
+  demand instead of when a file is opened, as
+  files can be read and written without opening
+  them (e. g. the loopback device does this).
+
+- Removed an unused function.
+
+Version 3.4
+-----------
+
+- Hash chains are now sorted by block numbers.
+  (Thanks to Kars de Jong for finding this.)
+- Removed all unnecessary external symbols.
+
+Version 3.3
+-----------
+
+- Tried to make all types 'correct' and consistent.
+- Errors and warnings are now reported via a
+  function. They are all prefixed by a severity
+  and have the same appearance:
+    "AFFS: <function>: <error message>"
+  (There's one exception to this, as in that function
+  is no pointer to the super block available.)
+- The filesystem is remounted read-only after an
+  error.
+- The names of newly created filesystem objects are
+  now checked for validity.
+- Minor cleanups in comments.
+- Added this Changes file. At last!
+
+Version 3.2
+-----------
+
+- Extension block cache: Reading/writing of huge files
+  (several MB) is much faster (of course the added
+  overhead slows down opening, but this is hardly
+  noticeable).
+- The same get_block()-routine can now be used for
+  both OFS and FFS.
+- The super block is now searched in the block that
+  was calculated and in the one following. This
+  should remedy the round-off error introduced by
+  the 1-k blocks that Linux uses.
+- Minor changes to adhere to the new VFS interface.
+- The number of used blocks is now also calculated
+  if the filesystem is mounted read-only.
+- Prefixed some constants with AFFS_ to avoid name
+  clashes.
+- Removed 'EXPERIMENTAL' status.
+
+Version 3.1
+-----------
+
+- Fixed a nasty bug which didn't allow read-only
+  mounts.
+- Allow dir-cache filesystems to be mounted
+  read only.
+- OFS support.
+- Several other changes I just cannot remember
+  any more.
+
+Version 3.0
+-----------
+
+- Almost complete rewrite for the new VFS
+  interface in Linux 1.3.
+- Write support.
+- Support for hard and symbolic links.
+- Lots of things I remember even less ...
+
+Version 2.0
+-----------
+
+- Fixed a few things to get it compiled.
+- Automatic root block calculation.
+- Partition checker for genhd.c
+
+========================================
+
+Let's just call Ray Burr's original affs
+'Version 1.0'.
diff --git a/fs/affs/Makefile b/fs/affs/Makefile
new file mode 100644
index 00000000000000..5d485cdca28674
--- /dev/null
+++ b/fs/affs/Makefile
@@ -0,0 +1,17 @@
+#
+# Makefile for the Linux affs filesystem routines.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile.
+
+#EXTRA_CFLAGS=-DDEBUG=1
+
+O_TARGET := affs.o
+
+obj-y   := super.o namei.o inode.o file.o dir.o amigaffs.o bitmap.o symlink.o
+obj-m   := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/affs/amigaffs.c b/fs/affs/amigaffs.c
new file mode 100644
index 00000000000000..bef1add043562c
--- /dev/null
+++ b/fs/affs/amigaffs.c
@@ -0,0 +1,514 @@
+/*
+ *  linux/fs/affs/amigaffs.c
+ *
+ *  (c) 1996  Hans-Joachim Widmaier - Rewritten
+ *
+ *  (C) 1993  Ray Burr - Amiga FFS filesystem.
+ *
+ *  Please send bug reports to: hjw@zvw.de
+ */
+
+#include <stdarg.h>
+#include <linux/stat.h>
+#include <linux/sched.h>
+#include <linux/affs_fs.h>
+#include <linux/string.h>
+#include <linux/locks.h>
+#include <linux/mm.h>
+#include <linux/amigaffs.h>
+
+extern struct timezone sys_tz;
+
+static char ErrorBuffer[256];
+
+/*
+ * Functions for accessing Amiga-FFS structures.
+ */
+
+
+/* Insert a header block bh into the directory dir
+ * caller must hold AFFS_DIR->i_hash_lock!
+ */
+
+int
+affs_insert_hash(struct inode *dir, struct buffer_head *bh)
+{
+	struct super_block *sb = dir->i_sb;
+	struct buffer_head *dir_bh;
+	u32 ino, hash_ino;
+	int offset;
+
+	ino = bh->b_blocknr;
+	offset = affs_hash_name(sb, AFFS_TAIL(sb, bh)->name + 1, AFFS_TAIL(sb, bh)->name[0]);
+
+	pr_debug("AFFS: insert_hash(dir=%u, ino=%d)\n", (u32)dir->i_ino, ino);
+
+	dir_bh = affs_bread(sb, dir->i_ino);
+	if (!dir_bh)
+		return -EIO;
+
+	hash_ino = be32_to_cpu(AFFS_HEAD(dir_bh)->table[offset]);
+	while (hash_ino) {
+		affs_brelse(dir_bh);
+		dir_bh = affs_bread(sb, hash_ino);
+		if (!dir_bh)
+			return -EIO;
+		hash_ino = be32_to_cpu(AFFS_TAIL(sb, dir_bh)->hash_chain);
+	}
+	AFFS_TAIL(sb, bh)->parent = cpu_to_be32(dir->i_ino);
+	AFFS_TAIL(sb, bh)->hash_chain = 0;
+	affs_fix_checksum(sb, bh);
+
+	if (dir->i_ino == dir_bh->b_blocknr)
+		AFFS_HEAD(dir_bh)->table[offset] = cpu_to_be32(ino);
+	else
+		AFFS_TAIL(sb, dir_bh)->hash_chain = cpu_to_be32(ino);
+
+	affs_adjust_checksum(dir_bh, ino);
+	mark_buffer_dirty_inode(dir_bh, dir);
+	affs_brelse(dir_bh);
+
+	dir->i_mtime = dir->i_ctime = CURRENT_TIME;
+	dir->i_version = ++event;
+	mark_inode_dirty(dir);
+
+	return 0;
+}
+
+/* Remove a header block from its directory.
+ * caller must hold AFFS_DIR->i_hash_lock!
+ */
+
+int
+affs_remove_hash(struct inode *dir, struct buffer_head *rem_bh)
+{
+	struct super_block *sb;
+	struct buffer_head *bh;
+	u32 rem_ino, hash_ino, ino;
+	int offset, retval;
+
+	sb = dir->i_sb;
+	rem_ino = rem_bh->b_blocknr;
+	offset = affs_hash_name(sb, AFFS_TAIL(sb, rem_bh)->name+1, AFFS_TAIL(sb, rem_bh)->name[0]);
+	pr_debug("AFFS: remove_hash(dir=%d, ino=%d, hashval=%d)\n", (u32)dir->i_ino, rem_ino, offset);
+
+	bh = affs_bread(sb, dir->i_ino);
+	if (!bh)
+		return -EIO;
+
+	retval = -ENOENT;
+	hash_ino = be32_to_cpu(AFFS_HEAD(bh)->table[offset]);
+	while (hash_ino) {
+		if (hash_ino == rem_ino) {
+			ino = AFFS_TAIL(sb, rem_bh)->hash_chain;
+			if (dir->i_ino == bh->b_blocknr)
+				AFFS_HEAD(bh)->table[offset] = ino;
+			else
+				AFFS_TAIL(sb, bh)->hash_chain = ino;
+			affs_adjust_checksum(bh, be32_to_cpu(ino) - hash_ino);
+			mark_buffer_dirty_inode(bh, dir);
+			AFFS_TAIL(sb, rem_bh)->parent = 0;
+			retval = 0;
+			break;
+		}
+		affs_brelse(bh);
+		bh = affs_bread(sb, hash_ino);
+		if (!bh)
+			return -EIO;
+		hash_ino = be32_to_cpu(AFFS_TAIL(sb, bh)->hash_chain);
+	}
+
+	affs_brelse(bh);
+
+	dir->i_mtime = dir->i_ctime = CURRENT_TIME;
+	dir->i_version = ++event;
+	mark_inode_dirty(dir);
+
+	return retval;
+}
+
+static void
+affs_fix_dcache(struct dentry *dentry, u32 entry_ino)
+{
+	struct inode *inode = dentry->d_inode;
+	void *data = dentry->d_fsdata;
+	struct list_head *head, *next;
+
+	spin_lock(&dcache_lock);
+	head = &inode->i_dentry;
+	next = head->next;
+	while (next != head) {
+		dentry = list_entry(next, struct dentry, d_alias);
+		if (entry_ino == (u32)(long)dentry->d_fsdata) {
+			dentry->d_fsdata = data;
+			break;
+		}
+		next = next->next;
+	}
+	spin_unlock(&dcache_lock);
+}
+
+
+/* Remove header from link chain */
+
+static int
+affs_remove_link(struct dentry *dentry)
+{
+	struct inode *dir, *inode = dentry->d_inode;
+	struct super_block *sb = inode->i_sb;
+	struct buffer_head *bh = NULL, *link_bh = NULL;
+	u32 link_ino, ino;
+	int retval;
+
+	pr_debug("AFFS: remove_link(key=%ld)\n", inode->i_ino);
+	retval = -EIO;
+	bh = affs_bread(sb, inode->i_ino);
+	if (!bh)
+		goto done;
+
+	link_ino = (u32)(long)dentry->d_fsdata;
+	if (inode->i_ino == link_ino) {
+		/* we can't remove the head of the link, as its blocknr is still used as ino,
+		 * so we remove the block of the first link instead.
+		 */ 
+		link_ino = be32_to_cpu(AFFS_TAIL(sb, bh)->link_chain);
+		link_bh = affs_bread(sb, link_ino);
+		if (!link_bh)
+			goto done;
+
+		dir = iget(sb, be32_to_cpu(AFFS_TAIL(sb, link_bh)->parent));
+		if (!dir)
+			goto done;
+
+		affs_lock_dir(dir);
+		affs_fix_dcache(dentry, link_ino);
+		retval = affs_remove_hash(dir, link_bh);
+		if (retval)
+			goto done;
+		mark_buffer_dirty_inode(link_bh, inode);
+
+		memcpy(AFFS_TAIL(sb, bh)->name, AFFS_TAIL(sb, link_bh)->name, 32);
+		retval = affs_insert_hash(dir, bh);
+		if (retval)
+			goto done;
+		mark_buffer_dirty_inode(bh, inode);
+
+		affs_unlock_dir(dir);
+		iput(dir);
+	} else {
+		link_bh = affs_bread(sb, link_ino);
+		if (!link_bh)
+			goto done;
+	}
+
+	while ((ino = be32_to_cpu(AFFS_TAIL(sb, bh)->link_chain))) {
+		if (ino == link_ino) {
+			ino = AFFS_TAIL(sb, link_bh)->link_chain;
+			AFFS_TAIL(sb, bh)->link_chain = ino;
+			affs_adjust_checksum(bh, be32_to_cpu(ino) - link_ino);
+			mark_buffer_dirty_inode(bh, inode);
+			retval = 0;
+			/* Fix the link count, if bh is a normal header block without links */
+			switch (be32_to_cpu(AFFS_TAIL(sb, bh)->stype)) {
+			case ST_LINKDIR:
+			case ST_LINKFILE:
+				break;
+			default:
+				if (!AFFS_TAIL(sb, bh)->link_chain)
+					inode->i_nlink = 1;
+			}
+			affs_free_block(sb, link_ino);
+			goto done;
+		}
+		affs_brelse(bh);
+		bh = affs_bread(sb, ino);
+		if (!bh)
+			goto done;
+	}
+	retval = -ENOENT;
+done:
+	affs_brelse(link_bh);
+	affs_brelse(bh);
+	return retval;
+}
+
+
+static int
+affs_empty_dir(struct inode *inode)
+{
+	struct super_block *sb = inode->i_sb;
+	struct buffer_head *bh;
+	int retval, size;
+
+	retval = -EIO;
+	bh = affs_bread(sb, inode->i_ino);
+	if (!bh)
+		goto done;
+
+	retval = -ENOTEMPTY;
+	for (size = AFFS_SB->s_hashsize - 1; size >= 0; size--)
+		if (AFFS_HEAD(bh)->table[size])
+			goto not_empty;
+	retval = 0;
+not_empty:
+	affs_brelse(bh);
+done:
+	return retval;
+}
+
+
+/* Remove a filesystem object. If the object to be removed has
+ * links to it, one of the links must be changed to inherit
+ * the file or directory. As above, any inode will do.
+ * The buffer will not be freed. If the header is a link, the
+ * block will be marked as free.
+ * This function returns a negative error number in case of
+ * an error, else 0 if the inode is to be deleted or 1 if not.
+ */
+
+int
+affs_remove_header(struct dentry *dentry)
+{
+	struct super_block *sb;
+	struct inode *inode, *dir;
+	struct buffer_head *bh = NULL;
+	int retval;
+
+	dir = dentry->d_parent->d_inode;
+	sb = dir->i_sb;
+
+	retval = -ENOENT;
+	inode = dentry->d_inode;
+	if (!inode)
+		goto done;
+
+	pr_debug("AFFS: remove_header(key=%ld)\n", inode->i_ino);
+	retval = -EIO;
+	bh = affs_bread(sb, (u32)(long)dentry->d_fsdata);
+	if (!bh)
+		goto done;
+
+	affs_lock_link(inode);
+	affs_lock_dir(dir);
+	switch (be32_to_cpu(AFFS_TAIL(sb, bh)->stype)) {
+	case ST_USERDIR:
+		/* if we ever want to support links to dirs
+		 * i_hash_lock of the inode must only be
+		 * taken after some checks
+		 */
+		affs_lock_dir(inode);
+		retval = affs_empty_dir(inode);
+		affs_unlock_dir(inode);
+		if (retval)
+			goto done_unlock;
+		break;
+	default:
+		break;
+	}
+
+	retval = affs_remove_hash(dir, bh);
+	if (retval)
+		goto done_unlock;
+	mark_buffer_dirty_inode(bh, inode);
+
+	affs_unlock_dir(dir);
+
+	if (inode->i_nlink > 1)
+		retval = affs_remove_link(dentry);
+	else
+		inode->i_nlink = 0;
+	affs_unlock_link(inode);
+	inode->i_ctime = CURRENT_TIME;
+	mark_inode_dirty(inode);
+
+done:
+	affs_brelse(bh);
+	return retval;
+
+done_unlock:
+	affs_unlock_dir(dir);
+	affs_unlock_link(inode);
+	goto done;
+}
+
+/* Checksum a block, do various consistency checks and optionally return
+   the blocks type number.  DATA points to the block.  If their pointers
+   are non-null, *PTYPE and *STYPE are set to the primary and secondary
+   block types respectively, *HASHSIZE is set to the size of the hashtable
+   (which lets us calculate the block size).
+   Returns non-zero if the block is not consistent. */
+
+u32
+affs_checksum_block(struct super_block *sb, struct buffer_head *bh)
+{
+	u32 *ptr = (u32 *)bh->b_data;
+	u32 sum;
+	int bsize;
+
+	sum = 0;
+	for (bsize = sb->s_blocksize / sizeof(u32); bsize > 0; bsize--)
+		sum += be32_to_cpu(*ptr++);
+	return sum;
+}
+
+/*
+ * Calculate the checksum of a disk block and store it
+ * at the indicated position.
+ */
+
+void
+affs_fix_checksum(struct super_block *sb, struct buffer_head *bh)
+{
+	int cnt = sb->s_blocksize / sizeof(u32);
+	u32 *ptr = (u32 *)bh->b_data;
+	u32 checksum, *checksumptr;
+
+	checksumptr = ptr + 5;
+	*checksumptr = 0;
+	for (checksum = 0; cnt > 0; ptr++, cnt--)
+		checksum += be32_to_cpu(*ptr);
+	*checksumptr = cpu_to_be32(-checksum);
+}
+
+void
+secs_to_datestamp(time_t secs, struct affs_date *ds)
+{
+	u32	 days;
+	u32	 minute;
+
+	secs -= sys_tz.tz_minuteswest * 60 + ((8 * 365 + 2) * 24 * 60 * 60);
+	if (secs < 0)
+		secs = 0;
+	days    = secs / 86400;
+	secs   -= days * 86400;
+	minute  = secs / 60;
+	secs   -= minute * 60;
+
+	ds->days = be32_to_cpu(days);
+	ds->mins = be32_to_cpu(minute);
+	ds->ticks = be32_to_cpu(secs * 50);
+}
+
+mode_t
+prot_to_mode(u32 prot)
+{
+	int mode = 0;
+
+	if (!(prot & FIBF_NOWRITE))
+		mode |= S_IWUSR;
+	if (!(prot & FIBF_NOREAD))
+		mode |= S_IRUSR;
+	if (!(prot & FIBF_NOEXECUTE))
+		mode |= S_IXUSR;
+	if (prot & FIBF_GRP_WRITE)
+		mode |= S_IWGRP;
+	if (prot & FIBF_GRP_READ)
+		mode |= S_IRGRP;
+	if (prot & FIBF_GRP_EXECUTE)
+		mode |= S_IXGRP;
+	if (prot & FIBF_OTR_WRITE)
+		mode |= S_IWOTH;
+	if (prot & FIBF_OTR_READ)
+		mode |= S_IROTH;
+	if (prot & FIBF_OTR_EXECUTE)
+		mode |= S_IXOTH;
+
+	return mode;
+}
+
+void
+mode_to_prot(struct inode *inode)
+{
+	u32 prot = AFFS_INODE->i_protect;
+	mode_t mode = inode->i_mode;
+
+	if (!(mode & S_IXUSR))
+		prot |= FIBF_NOEXECUTE;
+	if (!(mode & S_IRUSR))
+		prot |= FIBF_NOREAD;
+	if (!(mode & S_IWUSR))
+		prot |= FIBF_NOWRITE;
+	if (mode & S_IXGRP)
+		prot |= FIBF_GRP_EXECUTE;
+	if (mode & S_IRGRP)
+		prot |= FIBF_GRP_READ;
+	if (mode & S_IWGRP)
+		prot |= FIBF_GRP_WRITE;
+	if (mode & S_IXOTH)
+		prot |= FIBF_OTR_EXECUTE;
+	if (mode & S_IROTH)
+		prot |= FIBF_OTR_READ;
+	if (mode & S_IWOTH)
+		prot |= FIBF_OTR_WRITE;
+
+	AFFS_INODE->i_protect = prot;
+}
+
+void
+affs_error(struct super_block *sb, const char *function, const char *fmt, ...)
+{
+	va_list	 args;
+
+	va_start(args,fmt);
+	vsprintf(ErrorBuffer,fmt,args);
+	va_end(args);
+
+	printk(KERN_CRIT "AFFS error (device %s): %s(): %s\n", bdevname(sb->s_dev),
+		function,ErrorBuffer);
+	if (!(sb->s_flags & MS_RDONLY))
+		printk(KERN_WARNING "AFFS: Remounting filesystem read-only\n");
+	sb->s_flags |= MS_RDONLY;
+}
+
+void
+affs_warning(struct super_block *sb, const char *function, const char *fmt, ...)
+{
+	va_list	 args;
+
+	va_start(args,fmt);
+	vsprintf(ErrorBuffer,fmt,args);
+	va_end(args);
+
+	printk(KERN_WARNING "AFFS warning (device %s): %s(): %s\n", bdevname(sb->s_dev),
+		function,ErrorBuffer);
+}
+
+/* Check if the name is valid for a affs object. */
+
+int
+affs_check_name(const unsigned char *name, int len)
+{
+	int	 i;
+
+	if (len > 30)
+#ifdef AFFS_NO_TRUNCATE
+		return -ENAMETOOLONG;
+#else
+		len = 30;
+#endif
+
+	for (i = 0; i < len; i++) {
+		if (name[i] < ' ' || name[i] == ':'
+		    || (name[i] > 0x7e && name[i] < 0xa0))
+			return -EINVAL;
+	}
+
+	return 0;
+}
+
+/* This function copies name to bstr, with at most 30
+ * characters length. The bstr will be prepended by
+ * a length byte.
+ * NOTE: The name will must be already checked by
+ *       affs_check_name()!
+ */
+
+int
+affs_copy_name(unsigned char *bstr, struct dentry *dentry)
+{
+	int len = min(dentry->d_name.len, 30u);
+
+	*bstr++ = len;
+	memcpy(bstr, dentry->d_name.name, len);
+	return len;
+}
diff --git a/fs/affs/bitmap.c b/fs/affs/bitmap.c
new file mode 100644
index 00000000000000..60b44cd30bfdf4
--- /dev/null
+++ b/fs/affs/bitmap.c
@@ -0,0 +1,391 @@
+/*
+ *  linux/fs/affs/bitmap.c
+ *
+ *  (c) 1996 Hans-Joachim Widmaier
+ *
+ *  bitmap.c contains the code that handles all bitmap related stuff -
+ *  block allocation, deallocation, calculation of free space.
+ */
+
+#include <linux/sched.h>
+#include <linux/affs_fs.h>
+#include <linux/stat.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/locks.h>
+#include <linux/bitops.h>
+#include <linux/amigaffs.h>
+
+/* This is, of course, shamelessly stolen from fs/minix */
+
+static int nibblemap[] = { 0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4 };
+
+u32
+affs_count_free_bits(u32 blocksize, const void *data)
+{
+	const u32 *map;
+	u32 free;
+	u32 tmp;
+
+	map = data;
+	free = 0;
+	for (blocksize /= 4; blocksize > 0; blocksize--) {
+		tmp = *map++;
+		while (tmp) {
+			free += nibblemap[tmp & 0xf];
+			tmp >>= 4;
+		}
+	}
+
+	return free;
+}
+
+u32
+affs_count_free_blocks(struct super_block *sb)
+{
+	struct affs_bm_info *bm;
+	u32 free;
+	int i;
+
+	pr_debug("AFFS: count_free_blocks()\n");
+
+	if (sb->s_flags & MS_RDONLY)
+		return 0;
+
+	down(&AFFS_SB->s_bmlock);
+
+	bm = AFFS_SB->s_bitmap;
+	free = 0;
+	for (i = AFFS_SB->s_bmap_count; i > 0; bm++, i--)
+		free += bm->bm_free;
+
+	up(&AFFS_SB->s_bmlock);
+
+	return free;
+}
+
+void
+affs_free_block(struct super_block *sb, u32 block)
+{
+	struct affs_bm_info *bm;
+	struct buffer_head *bh;
+	u32 blk, bmap, bit, mask, tmp;
+	u32 *data;
+
+	pr_debug("AFFS: free_block(%u)\n", block);
+
+	if (block > AFFS_SB->s_partition_size)
+		goto err_range;
+
+	blk     = block - AFFS_SB->s_reserved;
+	bmap    = blk / AFFS_SB->s_bmap_bits;
+	bit     = blk % AFFS_SB->s_bmap_bits;
+	bm      = &AFFS_SB->s_bitmap[bmap];
+
+	down(&AFFS_SB->s_bmlock);
+
+	bh = AFFS_SB->s_bmap_bh;
+	if (AFFS_SB->s_last_bmap != bmap) {
+		affs_brelse(bh);
+		bh = affs_bread(sb, bm->bm_key);
+		if (!bh)
+			goto err_bh_read;
+		AFFS_SB->s_bmap_bh = bh;
+		AFFS_SB->s_last_bmap = bmap;
+	}
+
+	mask = 1 << (bit & 31);
+	data = (u32 *)bh->b_data + bit / 32 + 1;
+
+	/* mark block free */
+	tmp = be32_to_cpu(*data);
+	if (tmp & mask)
+		goto err_free;
+	*data = cpu_to_be32(tmp | mask);
+
+	/* fix checksum */
+	tmp = be32_to_cpu(*(u32 *)bh->b_data);
+	*(u32 *)bh->b_data = cpu_to_be32(tmp - mask);
+
+	mark_buffer_dirty(bh);
+	sb->s_dirt = 1;
+	bm->bm_free++;
+
+	up(&AFFS_SB->s_bmlock);
+	return;
+
+err_free:
+	affs_warning(sb,"affs_free_block","Trying to free block %u which is already free", block);
+	up(&AFFS_SB->s_bmlock);
+	return;
+
+err_bh_read:
+	affs_error(sb,"affs_free_block","Cannot read bitmap block %u", bm->bm_key);
+	AFFS_SB->s_bmap_bh = NULL;
+	AFFS_SB->s_last_bmap = ~0;
+	up(&AFFS_SB->s_bmlock);
+	return;
+
+err_range:
+	affs_error(sb, "affs_free_block","Block %u outside partition", block);
+	return;
+}
+
+/*
+ * Allocate a block in the given allocation zone.
+ * Since we have to byte-swap the bitmap on little-endian
+ * machines, this is rather expensive. Therefor we will
+ * preallocate up to 16 blocks from the same word, if
+ * possible. We are not doing preallocations in the
+ * header zone, though.
+ */
+
+u32
+affs_alloc_block(struct inode *inode, u32 goal)
+{
+	struct super_block *sb;
+	struct affs_bm_info *bm;
+	struct buffer_head *bh;
+	u32 *data, *enddata;
+	u32 blk, bmap, bit, mask, mask2, tmp;
+	int i;
+
+	sb = inode->i_sb;
+
+	pr_debug("AFFS: balloc(inode=%lu,goal=%u): ", inode->i_ino, goal);
+
+	if (inode->u.affs_i.i_pa_cnt) {
+		pr_debug("%d\n", inode->u.affs_i.i_lastalloc+1);
+		inode->u.affs_i.i_pa_cnt--;
+		return ++inode->u.affs_i.i_lastalloc;
+	}
+
+	if (!goal || goal > AFFS_SB->s_partition_size) {
+		if (goal)
+			affs_warning(sb, "affs_balloc", "invalid goal %d", goal);
+		//if (!inode->u.affs_i.i_last_block)
+		//	affs_warning(sb, "affs_balloc", "no last alloc block");
+		goal = AFFS_SB->s_reserved;
+	}
+
+	blk = goal - AFFS_SB->s_reserved;
+	bmap = blk / AFFS_SB->s_bmap_bits;
+	bm = &AFFS_SB->s_bitmap[bmap];
+
+	down(&AFFS_SB->s_bmlock);
+
+	if (bm->bm_free)
+		goto find_bmap_bit;
+
+find_bmap:
+	/* search for the next bmap buffer with free bits */
+	i = AFFS_SB->s_bmap_count;
+	do {
+		bmap++;
+		bm++;
+		if (bmap < AFFS_SB->s_bmap_count)
+			continue;
+		/* restart search at zero */
+		bmap = 0;
+		bm = AFFS_SB->s_bitmap;
+		if (--i <= 0)
+			goto err_full;
+	} while (!bm->bm_free);
+	blk = bmap * AFFS_SB->s_bmap_bits;
+
+find_bmap_bit:
+
+	bh = AFFS_SB->s_bmap_bh;
+	if (AFFS_SB->s_last_bmap != bmap) {
+		affs_brelse(bh);
+		bh = affs_bread(sb, bm->bm_key);
+		if (!bh)
+			goto err_bh_read;
+		AFFS_SB->s_bmap_bh = bh;
+		AFFS_SB->s_last_bmap = bmap;
+	}
+
+	/* find an unused block in this bitmap block */
+	bit = blk % AFFS_SB->s_bmap_bits;
+	data = (u32 *)bh->b_data + bit / 32 + 1;
+	enddata = (u32 *)((u8 *)bh->b_data + sb->s_blocksize);
+	mask = ~0UL << (bit & 31);
+	blk &= ~31UL;
+
+	tmp = be32_to_cpu(*data) & mask;
+	if (tmp)
+		goto find_bit;
+
+	/* scan the rest of the buffer */
+	do {
+		blk += 32;
+		if (++data >= enddata)
+			/* didn't find something, can only happen
+			 * if scan didn't start at 0, try next bmap
+			 */
+			goto find_bmap;
+	} while (!(tmp = *data));
+	tmp = be32_to_cpu(tmp);
+
+find_bit:
+	/* finally look for a free bit in the word */
+	bit = ffs(tmp) - 1;
+	blk += bit + AFFS_SB->s_reserved;
+	mask2 = mask = 1 << (bit & 31);
+	inode->u.affs_i.i_lastalloc = blk;
+
+	/* prealloc as much as possible within this word */
+	while ((mask2 <<= 1)) {
+		if (!(tmp & mask2))
+			break;
+		inode->u.affs_i.i_pa_cnt++;
+		mask |= mask2;
+	}
+	bm->bm_free -= inode->u.affs_i.i_pa_cnt + 1;
+
+	*data = cpu_to_be32(tmp & ~mask);
+
+	/* fix checksum */
+	tmp = be32_to_cpu(*(u32 *)bh->b_data);
+	*(u32 *)bh->b_data = cpu_to_be32(tmp + mask);
+
+	mark_buffer_dirty(bh);
+	sb->s_dirt = 1;
+
+	up(&AFFS_SB->s_bmlock);
+
+	pr_debug("%d\n", blk);
+	return blk;
+
+err_bh_read:
+	affs_error(sb,"affs_read_block","Cannot read bitmap block %u", bm->bm_key);
+	AFFS_SB->s_bmap_bh = NULL;
+	AFFS_SB->s_last_bmap = ~0;
+err_full:
+	pr_debug("failed\n");
+	up(&AFFS_SB->s_bmlock);
+	return 0;
+}
+
+int affs_init_bitmap(struct super_block *sb, int *flags)
+{
+	struct affs_bm_info *bm;
+	struct buffer_head *bmap_bh = NULL, *bh = NULL;
+	u32 *bmap_blk;
+	u32 size, blk, end, offset, mask;
+	int i, res = 0;
+
+	if (*flags & MS_RDONLY)
+		return 0;
+
+	if (!AFFS_ROOT_TAIL(sb, AFFS_SB->s_root_bh)->bm_flag) {
+		printk(KERN_NOTICE "AFFS: Bitmap invalid - mounting %s read only\n",
+			kdevname(sb->s_dev));
+		*flags |= MS_RDONLY;
+		return 0;
+	}
+
+	AFFS_SB->s_last_bmap = ~0;
+	AFFS_SB->s_bmap_bh = NULL;
+	AFFS_SB->s_bmap_bits = sb->s_blocksize * 8 - 32;
+	AFFS_SB->s_bmap_count = (AFFS_SB->s_partition_size - AFFS_SB->s_reserved +
+				 AFFS_SB->s_bmap_bits - 1) / AFFS_SB->s_bmap_bits;
+	size = AFFS_SB->s_bmap_count * sizeof(*bm);
+	bm = AFFS_SB->s_bitmap = kmalloc(size, GFP_KERNEL);
+	if (!AFFS_SB->s_bitmap) {
+		printk(KERN_ERR "AFFS: Bitmap allocation failed\n");
+		return -ENOMEM;
+	}
+	memset(AFFS_SB->s_bitmap, 0, size);
+
+	bmap_blk = (u32 *)AFFS_SB->s_root_bh->b_data;
+	blk = sb->s_blocksize / 4 - 49;
+	end = blk + 25;
+
+	for (i = AFFS_SB->s_bmap_count; i > 0; bm++, i--) {
+		affs_brelse(bh);
+
+		bm->bm_key = be32_to_cpu(bmap_blk[blk]);
+		bh = affs_bread(sb, bm->bm_key);
+		if (!bh) {
+			printk(KERN_ERR "AFFS: Cannot read bitmap\n");
+			res = -EIO;
+			goto out;
+		}
+		if (affs_checksum_block(sb, bh)) {
+			printk(KERN_WARNING "AFFS: Bitmap %u invalid - mounting %s read only.\n",
+			       bm->bm_key, kdevname(sb->s_dev));
+			*flags |= MS_RDONLY;
+			goto out;
+		}
+		pr_debug("AFFS: read bitmap block %d: %d\n", blk, bm->bm_key);
+		bm->bm_free = affs_count_free_bits(sb->s_blocksize - 4, bh->b_data + 4);
+
+		/* Don't try read the extension if this is the last block,
+		 * but we also need the right bm pointer below
+		 */
+		if (++blk < end || i == 1)
+			continue;
+		if (bmap_bh)
+			affs_brelse(bmap_bh);
+		bmap_bh = affs_bread(sb, be32_to_cpu(bmap_blk[blk]));
+		if (!bmap_bh) {
+			printk(KERN_ERR "AFFS: Cannot read bitmap extension\n");
+			res = -EIO;
+			goto out;
+		}
+		bmap_blk = (u32 *)bmap_bh->b_data;
+		blk = 0;
+		end = sb->s_blocksize / 4 - 1;
+	}
+
+	offset = (AFFS_SB->s_partition_size - AFFS_SB->s_reserved) % AFFS_SB->s_bmap_bits;
+	mask = ~(0xFFFFFFFFU << (offset & 31));
+	pr_debug("last word: %d %d %d\n", offset, offset / 32 + 1, mask);
+	offset = offset / 32 + 1;
+
+	if (mask) {
+		u32 old, new;
+
+		/* Mark unused bits in the last word as allocated */
+		old = be32_to_cpu(((u32 *)bh->b_data)[offset]);
+		new = old & mask;
+		//if (old != new) {
+			((u32 *)bh->b_data)[offset] = cpu_to_be32(new);
+			/* fix checksum */
+			//new -= old;
+			//old = be32_to_cpu(*(u32 *)bh->b_data);
+			//*(u32 *)bh->b_data = cpu_to_be32(old - new);
+			//mark_buffer_dirty(bh);
+		//}
+		/* correct offset for the bitmap count below */
+		//offset++;
+	}
+	while (++offset < sb->s_blocksize / 4)
+		((u32 *)bh->b_data)[offset] = 0;
+	((u32 *)bh->b_data)[0] = 0;
+	((u32 *)bh->b_data)[0] = cpu_to_be32(-affs_checksum_block(sb, bh));
+	mark_buffer_dirty(bh);
+
+	/* recalculate bitmap count for last block */
+	bm--;
+	bm->bm_free = affs_count_free_bits(sb->s_blocksize - 4, bh->b_data + 4);
+
+out:
+	affs_brelse(bh);
+	affs_brelse(bmap_bh);
+	return res;
+}
+
+void affs_free_bitmap(struct super_block *sb)
+{
+	if (!AFFS_SB->s_bitmap)
+		return;
+
+	affs_brelse(AFFS_SB->s_bmap_bh);
+	AFFS_SB->s_bmap_bh = NULL;
+	AFFS_SB->s_last_bmap = ~0;
+	kfree(AFFS_SB->s_bitmap);
+	AFFS_SB->s_bitmap = NULL;
+}
diff --git a/fs/affs/dir.c b/fs/affs/dir.c
new file mode 100644
index 00000000000000..c6339451b03f38
--- /dev/null
+++ b/fs/affs/dir.c
@@ -0,0 +1,163 @@
+/*
+ *  linux/fs/affs/dir.c
+ *
+ *  (c) 1996  Hans-Joachim Widmaier - Rewritten
+ *
+ *  (C) 1993  Ray Burr - Modified for Amiga FFS filesystem.
+ *
+ *  (C) 1992  Eric Youngdale Modified for ISO 9660 filesystem.
+ *
+ *  (C) 1991  Linus Torvalds - minix filesystem
+ *
+ *  affs directory handling functions
+ *
+ */
+
+#include <asm/uaccess.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/kernel.h>
+#include <linux/affs_fs.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/amigaffs.h>
+
+static int affs_readdir(struct file *, void *, filldir_t);
+
+struct file_operations affs_dir_operations = {
+	read:		generic_read_dir,
+	readdir:	affs_readdir,
+	fsync:		file_fsync,
+};
+
+/*
+ * directories can handle most operations...
+ */
+struct inode_operations affs_dir_inode_operations = {
+	create:		affs_create,
+	lookup:		affs_lookup,
+	link:		affs_link,
+	unlink:		affs_unlink,
+	symlink:	affs_symlink,
+	mkdir:		affs_mkdir,
+	rmdir:		affs_rmdir,
+	rename:		affs_rename,
+	setattr:	affs_notify_change,
+};
+
+static int
+affs_readdir(struct file *filp, void *dirent, filldir_t filldir)
+{
+	struct inode		*inode = filp->f_dentry->d_inode;
+	struct super_block	*sb = inode->i_sb;
+	struct buffer_head	*dir_bh;
+	struct buffer_head	*fh_bh;
+	unsigned char		*name;
+	int			 namelen;
+	u32			 i;
+	int			 hash_pos;
+	int			 chain_pos;
+	u32			 f_pos;
+	u32			 ino;
+	int			 stored;
+	int			 res;
+
+	pr_debug("AFFS: readdir(ino=%lu,f_pos=%lx)\n",inode->i_ino,(unsigned long)filp->f_pos);
+
+	stored = 0;
+	res    = -EIO;
+	dir_bh = NULL;
+	fh_bh  = NULL;
+	f_pos  = filp->f_pos;
+
+	if (f_pos == 0) {
+		filp->private_data = (void *)0;
+		if (filldir(dirent, ".", 1, f_pos, inode->i_ino, DT_DIR) < 0)
+			return 0;
+		filp->f_pos = f_pos = 1;
+		stored++;
+	}
+	if (f_pos == 1) {
+		if (filldir(dirent, "..", 2, f_pos, filp->f_dentry->d_parent->d_inode->i_ino, DT_DIR) < 0)
+			return stored;
+		filp->f_pos = f_pos = 2;
+		stored++;
+	}
+
+	affs_lock_dir(inode);
+	chain_pos = (f_pos - 2) & 0xffff;
+	hash_pos  = (f_pos - 2) >> 16;
+	if (chain_pos == 0xffff) {
+		affs_warning(sb, "readdir", "More than 65535 entries in chain");
+		chain_pos = 0;
+		hash_pos++;
+		filp->f_pos = ((hash_pos << 16) | chain_pos) + 2;
+	}
+	dir_bh = affs_bread(sb, inode->i_ino);
+	if (!dir_bh)
+		goto readdir_out;
+
+	/* If the directory hasn't changed since the last call to readdir(),
+	 * we can jump directly to where we left off.
+	 */
+	ino = (u32)(long)filp->private_data;
+	if (ino && filp->f_version == inode->i_version) {
+		pr_debug("AFFS: readdir() left off=%d\n", ino);
+		goto inside;
+	}
+
+	ino = be32_to_cpu(AFFS_HEAD(dir_bh)->table[hash_pos]);
+	for (i = 0; ino && i < chain_pos; i++) {
+		fh_bh = affs_bread(sb, ino);
+		if (!fh_bh) {
+			affs_error(sb, "readdir","Cannot read block %d", i);
+			goto readdir_out;
+		}
+		ino = be32_to_cpu(AFFS_TAIL(sb, fh_bh)->hash_chain);
+		affs_brelse(fh_bh);
+		fh_bh = NULL;
+	}
+	if (ino)
+		goto inside;
+	hash_pos++;
+
+	for (; hash_pos < AFFS_SB->s_hashsize; hash_pos++) {
+		ino = be32_to_cpu(AFFS_HEAD(dir_bh)->table[hash_pos]);
+		if (!ino)
+			continue;
+		f_pos = (hash_pos << 16) + 2;
+inside:
+		do {
+			fh_bh = affs_bread(sb, ino);
+			if (!fh_bh) {
+				affs_error(sb, "readdir","Cannot read block %d", ino);
+				goto readdir_done;
+			}
+
+			namelen = min(AFFS_TAIL(sb, fh_bh)->name[0], (u8)30);
+			name = AFFS_TAIL(sb, fh_bh)->name + 1;
+			pr_debug("AFFS: readdir(): filldir(\"%.*s\", ino=%u), hash=%d, f_pos=%x\n",
+				 namelen, name, ino, hash_pos, f_pos);
+			if (filldir(dirent, name, namelen, f_pos, ino, DT_UNKNOWN) < 0)
+				goto readdir_done;
+			stored++;
+			f_pos++;
+			ino = be32_to_cpu(AFFS_TAIL(sb, fh_bh)->hash_chain);
+			affs_brelse(fh_bh);
+			fh_bh = NULL;
+		} while (ino);
+	}
+readdir_done:
+	filp->f_pos = f_pos;
+	filp->f_version = inode->i_version;
+	filp->private_data = (void *)(long)ino;
+	res = stored;
+
+readdir_out:
+	affs_brelse(dir_bh);
+	affs_brelse(fh_bh);
+	affs_unlock_dir(inode);
+	pr_debug("AFFS: readdir()=%d\n", stored);
+	return res;
+}
diff --git a/fs/affs/file.c b/fs/affs/file.c
new file mode 100644
index 00000000000000..b648e923460c60
--- /dev/null
+++ b/fs/affs/file.c
@@ -0,0 +1,932 @@
+/*
+ *  linux/fs/affs/file.c
+ *
+ *  (c) 1996  Hans-Joachim Widmaier - Rewritten
+ *
+ *  (C) 1993  Ray Burr - Modified for Amiga FFS filesystem.
+ *
+ *  (C) 1992  Eric Youngdale Modified for ISO 9660 filesystem.
+ *
+ *  (C) 1991  Linus Torvalds - minix filesystem
+ *
+ *  affs regular file handling primitives
+ */
+
+#include <asm/div64.h>
+#include <asm/uaccess.h>
+#include <asm/system.h>
+#include <linux/sched.h>
+#include <linux/affs_fs.h>
+#include <linux/fcntl.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/stat.h>
+#include <linux/locks.h>
+#include <linux/smp_lock.h>
+#include <linux/dirent.h>
+#include <linux/fs.h>
+#include <linux/amigaffs.h>
+#include <linux/mm.h>
+#include <linux/pagemap.h>
+
+#if PAGE_SIZE < 4096
+#error PAGE_SIZE must be at least 4096
+#endif
+
+static int affs_grow_extcache(struct inode *inode, u32 lc_idx);
+static struct buffer_head *affs_alloc_extblock(struct inode *inode, struct buffer_head *bh, u32 ext);
+static inline struct buffer_head *affs_get_extblock(struct inode *inode, u32 ext);
+static struct buffer_head *affs_get_extblock_slow(struct inode *inode, u32 ext);
+static int affs_get_block(struct inode *inode, long block, struct buffer_head *bh_result, int create);
+
+static ssize_t affs_file_write(struct file *filp, const char *buf, size_t count, loff_t *ppos);
+static int affs_file_open(struct inode *inode, struct file *filp);
+static int affs_file_release(struct inode *inode, struct file *filp);
+
+struct file_operations affs_file_operations = {
+	llseek:		generic_file_llseek,
+	read:		generic_file_read,
+	write:		affs_file_write,
+	mmap:		generic_file_mmap,
+	open:		affs_file_open,
+	release:	affs_file_release,
+	fsync:		file_fsync,
+};
+
+struct inode_operations affs_file_inode_operations = {
+	truncate:	affs_truncate,
+	setattr:	affs_notify_change,
+};
+
+static int
+affs_file_open(struct inode *inode, struct file *filp)
+{
+	if (atomic_read(&filp->f_count) != 1)
+		return 0;
+	pr_debug("AFFS: open(%d)\n", AFFS_INODE->i_opencnt);
+	AFFS_INODE->i_opencnt++;
+	return 0;
+}
+
+static int
+affs_file_release(struct inode *inode, struct file *filp)
+{
+	if (atomic_read(&filp->f_count) != 0)
+		return 0;
+	pr_debug("AFFS: release(%d)\n", AFFS_INODE->i_opencnt);
+	AFFS_INODE->i_opencnt--;
+	if (!AFFS_INODE->i_opencnt)
+		affs_free_prealloc(inode);
+
+	return 0;
+}
+
+static int
+affs_grow_extcache(struct inode *inode, u32 lc_idx)
+{
+	struct super_block	*sb = inode->i_sb;
+	struct buffer_head	*bh;
+	u32 lc_max;
+	int i, j, key;
+
+	if (!AFFS_INODE->i_lc) {
+		char *ptr = (char *)get_zeroed_page(GFP_NOFS);
+		if (!ptr)
+			return -ENOMEM;
+		AFFS_INODE->i_lc = (u32 *)ptr;
+		AFFS_INODE->i_ac = (struct affs_ext_key *)(ptr + AFFS_CACHE_SIZE / 2);
+	}
+
+	lc_max = AFFS_LC_SIZE << AFFS_INODE->i_lc_shift;
+
+	if (AFFS_INODE->i_extcnt > lc_max) {
+		u32 lc_shift, lc_mask, tmp, off;
+
+		/* need to recalculate linear cache, start from old size */
+		lc_shift = AFFS_INODE->i_lc_shift;
+		tmp = (AFFS_INODE->i_extcnt / AFFS_LC_SIZE) >> lc_shift;
+		for (; tmp; tmp >>= 1)
+			lc_shift++;
+		lc_mask = (1 << lc_shift) - 1;
+
+		/* fix idx and old size to new shift */
+		lc_idx >>= (lc_shift - AFFS_INODE->i_lc_shift);
+		AFFS_INODE->i_lc_size >>= (lc_shift - AFFS_INODE->i_lc_shift);
+
+		/* first shrink old cache to make more space */
+		off = 1 << (lc_shift - AFFS_INODE->i_lc_shift);
+		for (i = 1, j = off; j < AFFS_LC_SIZE; i++, j += off)
+			AFFS_INODE->i_ac[i] = AFFS_INODE->i_ac[j];
+
+		AFFS_INODE->i_lc_shift = lc_shift;
+		AFFS_INODE->i_lc_mask = lc_mask;
+	}
+
+	/* fill cache to the needed index */
+	i = AFFS_INODE->i_lc_size;
+	AFFS_INODE->i_lc_size = lc_idx + 1;
+	for (; i <= lc_idx; i++) {
+		if (!i) {
+			AFFS_INODE->i_lc[0] = inode->i_ino;
+			continue;
+		}
+		key = AFFS_INODE->i_lc[i - 1];
+		j = AFFS_INODE->i_lc_mask + 1;
+		// unlock cache
+		for (; j > 0; j--) {
+			bh = affs_bread(sb, key);
+			if (!bh)
+				goto err;
+			key = be32_to_cpu(AFFS_TAIL(sb, bh)->extension);
+			affs_brelse(bh);
+		}
+		// lock cache
+		AFFS_INODE->i_lc[i] = key;
+	}
+
+	return 0;
+
+err:
+	// lock cache
+	return -EIO;
+}
+
+static struct buffer_head *
+affs_alloc_extblock(struct inode *inode, struct buffer_head *bh, u32 ext)
+{
+	struct super_block *sb = inode->i_sb;
+	struct buffer_head *new_bh;
+	u32 blocknr, tmp;
+
+	blocknr = affs_alloc_block(inode, bh->b_blocknr);
+	if (!blocknr)
+		return ERR_PTR(-ENOSPC);
+
+	new_bh = affs_getzeroblk(sb, blocknr);
+	if (!new_bh) {
+		affs_free_block(sb, blocknr);
+		return ERR_PTR(-EIO);
+	}
+
+	AFFS_HEAD(new_bh)->ptype = cpu_to_be32(T_LIST);
+	AFFS_HEAD(new_bh)->key = cpu_to_be32(blocknr);
+	AFFS_TAIL(sb, new_bh)->stype = cpu_to_be32(ST_FILE);
+	AFFS_TAIL(sb, new_bh)->parent = cpu_to_be32(inode->i_ino);
+	affs_fix_checksum(sb, new_bh);
+
+	mark_buffer_dirty_inode(new_bh, inode);
+
+	tmp = be32_to_cpu(AFFS_TAIL(sb, bh)->extension);
+	if (tmp)
+		affs_warning(sb, "alloc_ext", "previous extension set (%x)", tmp);
+	AFFS_TAIL(sb, bh)->extension = cpu_to_be32(blocknr);
+	affs_adjust_checksum(bh, blocknr - tmp);
+	mark_buffer_dirty_inode(bh, inode);
+
+	AFFS_INODE->i_extcnt++;
+	mark_inode_dirty(inode);
+
+	return new_bh;
+}
+
+static inline struct buffer_head *
+affs_get_extblock(struct inode *inode, u32 ext)
+{
+	/* inline the simplest case: same extended block as last time */
+	struct buffer_head *bh = AFFS_INODE->i_ext_bh;
+	if (ext == AFFS_INODE->i_ext_last)
+		atomic_inc(&bh->b_count);
+	else
+		/* we have to do more (not inlined) */
+		bh = affs_get_extblock_slow(inode, ext);
+
+	return bh;
+}
+
+static struct buffer_head *
+affs_get_extblock_slow(struct inode *inode, u32 ext)
+{
+	struct super_block *sb = inode->i_sb;
+	struct buffer_head *bh;
+	u32 ext_key;
+	u32 lc_idx, lc_off, ac_idx;
+	u32 tmp, idx;
+
+	if (ext == AFFS_INODE->i_ext_last + 1) {
+		/* read the next extended block from the current one */
+		bh = AFFS_INODE->i_ext_bh;
+		ext_key = be32_to_cpu(AFFS_TAIL(sb, bh)->extension);
+		if (ext < AFFS_INODE->i_extcnt)
+			goto read_ext;
+		if (ext > AFFS_INODE->i_extcnt)
+			BUG();
+		bh = affs_alloc_extblock(inode, bh, ext);
+		if (IS_ERR(bh))
+			return bh;
+		goto store_ext;
+	}
+
+	if (ext == 0) {
+		/* we seek back to the file header block */
+		ext_key = inode->i_ino;
+		goto read_ext;
+	}
+
+	if (ext >= AFFS_INODE->i_extcnt) {
+		struct buffer_head *prev_bh;
+
+		/* allocate a new extended block */
+		if (ext > AFFS_INODE->i_extcnt)
+			BUG();
+
+		/* get previous extended block */
+		prev_bh = affs_get_extblock(inode, ext - 1);
+		if (IS_ERR(prev_bh))
+			return prev_bh;
+		bh = affs_alloc_extblock(inode, prev_bh, ext);
+		affs_brelse(prev_bh);
+		if (IS_ERR(bh))
+			return bh;
+		goto store_ext;
+	}
+
+again:
+	/* check if there is an extended cache and whether it's large enough */
+	lc_idx = ext >> AFFS_INODE->i_lc_shift;
+	lc_off = ext & AFFS_INODE->i_lc_mask;
+
+	if (lc_idx >= AFFS_INODE->i_lc_size) {
+		int err;
+
+		err = affs_grow_extcache(inode, lc_idx);
+		if (err)
+			return ERR_PTR(err);
+		goto again;
+	}
+
+	/* every n'th key we find in the linear cache */
+	if (!lc_off) {
+		ext_key = AFFS_INODE->i_lc[lc_idx];
+		goto read_ext;
+	}
+
+	/* maybe it's still in the associative cache */
+	ac_idx = (ext - lc_idx - 1) & AFFS_AC_MASK;
+	if (AFFS_INODE->i_ac[ac_idx].ext == ext) {
+		ext_key = AFFS_INODE->i_ac[ac_idx].key;
+		goto read_ext;
+	}
+
+	/* try to find one of the previous extended blocks */
+	tmp = ext;
+	idx = ac_idx;
+	while (--tmp, --lc_off > 0) {
+		idx = (idx - 1) & AFFS_AC_MASK;
+		if (AFFS_INODE->i_ac[idx].ext == tmp) {
+			ext_key = AFFS_INODE->i_ac[idx].key;
+			goto find_ext;
+		}
+	}
+
+	/* fall back to the linear cache */
+	ext_key = AFFS_INODE->i_lc[lc_idx];
+find_ext:
+	/* read all extended blocks until we find the one we need */
+	//unlock cache
+	do {
+		bh = affs_bread(sb, ext_key);
+		if (!bh)
+			goto err_bread;
+		ext_key = be32_to_cpu(AFFS_TAIL(sb, bh)->extension);
+		affs_brelse(bh);
+		tmp++;
+	} while (tmp < ext);
+	//lock cache
+
+	/* store it in the associative cache */
+	// recalculate ac_idx?
+	AFFS_INODE->i_ac[ac_idx].ext = ext;
+	AFFS_INODE->i_ac[ac_idx].key = ext_key;
+
+read_ext:
+	/* finally read the right extended block */
+	//unlock cache
+	bh = affs_bread(sb, ext_key);
+	if (!bh)
+		goto err_bread;
+	//lock cache
+
+store_ext:
+	/* release old cached extended block and store the new one */
+	affs_brelse(AFFS_INODE->i_ext_bh);
+	AFFS_INODE->i_ext_last = ext;
+	AFFS_INODE->i_ext_bh = bh;
+	atomic_inc(&bh->b_count);
+
+	return bh;
+
+err_bread:
+	affs_brelse(bh);
+	return ERR_PTR(-EIO);
+}
+
+static int
+affs_get_block(struct inode *inode, long block, struct buffer_head *bh_result, int create)
+{
+	struct super_block	*sb = inode->i_sb;
+	struct buffer_head	*ext_bh;
+	u32			 ext;
+
+	pr_debug("AFFS: get_block(%u, %ld)\n", (u32)inode->i_ino, block);
+
+	if (block < 0)
+		goto err_small;
+
+	if (block >= AFFS_INODE->i_blkcnt) {
+		if (block > AFFS_INODE->i_blkcnt || !create)
+			goto err_big;
+	} else
+		create = 0;
+
+	//lock cache
+	affs_lock_ext(inode);
+
+	ext = block / AFFS_SB->s_hashsize;
+	block -= ext * AFFS_SB->s_hashsize;
+	ext_bh = affs_get_extblock(inode, ext);
+	if (IS_ERR(ext_bh))
+		goto err_ext;
+	bh_result->b_blocknr = be32_to_cpu(AFFS_BLOCK(sb, ext_bh, block));
+	bh_result->b_dev = inode->i_dev;
+	bh_result->b_state |= (1UL << BH_Mapped);
+
+	if (create) {
+		u32 blocknr = affs_alloc_block(inode, ext_bh->b_blocknr);
+		if (!blocknr)
+			goto err_alloc;
+		bh_result->b_state |= (1UL << BH_New);
+		AFFS_INODE->mmu_private += AFFS_SB->s_data_blksize;
+		AFFS_INODE->i_blkcnt++;
+
+		/* store new block */
+		if (bh_result->b_blocknr)
+			affs_warning(sb, "get_block", "block already set (%x)", bh_result->b_blocknr);
+		AFFS_BLOCK(sb, ext_bh, block) = cpu_to_be32(blocknr);
+		AFFS_HEAD(ext_bh)->block_count = cpu_to_be32(block + 1);
+		affs_adjust_checksum(ext_bh, blocknr - bh_result->b_blocknr + 1);
+		bh_result->b_blocknr = blocknr;
+
+		if (!block) {
+			/* insert first block into header block */
+			u32 tmp = be32_to_cpu(AFFS_HEAD(ext_bh)->first_data);
+			if (tmp)
+				affs_warning(sb, "get_block", "first block already set (%d)", tmp);
+			AFFS_HEAD(ext_bh)->first_data = cpu_to_be32(blocknr);
+			affs_adjust_checksum(ext_bh, blocknr - tmp);
+		}
+	}
+
+	affs_brelse(ext_bh);
+	//unlock cache
+	affs_unlock_ext(inode);
+	return 0;
+
+err_small:
+	affs_error(inode->i_sb,"get_block","Block < 0");
+	return -EIO;
+err_big:
+	affs_error(inode->i_sb,"get_block","strange block request %d", block);
+	return -EIO;
+err_ext:
+	// unlock cache
+	affs_unlock_ext(inode);
+	return PTR_ERR(ext_bh);
+err_alloc:
+	brelse(ext_bh);
+	bh_result->b_state &= ~(1UL << BH_Mapped);
+	// unlock cache
+	affs_unlock_ext(inode);
+	return -ENOSPC;
+}
+
+static int affs_writepage(struct page *page)
+{
+	return block_write_full_page(page, affs_get_block);
+}
+static int affs_readpage(struct file *file, struct page *page)
+{
+	return block_read_full_page(page, affs_get_block);
+}
+static int affs_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)
+{
+	return cont_prepare_write(page, from, to, affs_get_block,
+		&page->mapping->host->u.affs_i.mmu_private);
+}
+static int _affs_bmap(struct address_space *mapping, long block)
+{
+	return generic_block_bmap(mapping,block,affs_get_block);
+}
+struct address_space_operations affs_aops = {
+	readpage: affs_readpage,
+	writepage: affs_writepage,
+	sync_page: block_sync_page,
+	prepare_write: affs_prepare_write,
+	commit_write: generic_commit_write,
+	bmap: _affs_bmap
+};
+
+static inline struct buffer_head *
+affs_bread_ino(struct inode *inode, int block, int create)
+{
+	struct buffer_head *bh, tmp_bh;
+	int err;
+
+	tmp_bh.b_state = 0;
+	err = affs_get_block(inode, block, &tmp_bh, create);
+	if (!err) {
+		bh = affs_bread(inode->i_sb, tmp_bh.b_blocknr);
+		if (bh) {
+			bh->b_state |= tmp_bh.b_state;
+			return bh;
+		}
+		err = -EIO;
+	}
+	return ERR_PTR(err);
+}
+
+static inline struct buffer_head *
+affs_getzeroblk_ino(struct inode *inode, int block)
+{
+	struct buffer_head *bh, tmp_bh;
+	int err;
+
+	tmp_bh.b_state = 0;
+	err = affs_get_block(inode, block, &tmp_bh, 1);
+	if (!err) {
+		bh = affs_getzeroblk(inode->i_sb, tmp_bh.b_blocknr);
+		if (bh) {
+			bh->b_state |= tmp_bh.b_state;
+			return bh;
+		}
+		err = -EIO;
+	}
+	return ERR_PTR(err);
+}
+
+static inline struct buffer_head *
+affs_getemptyblk_ino(struct inode *inode, int block)
+{
+	struct buffer_head *bh, tmp_bh;
+	int err;
+
+	tmp_bh.b_state = 0;
+	err = affs_get_block(inode, block, &tmp_bh, 1);
+	if (!err) {
+		bh = affs_getemptyblk(inode->i_sb, tmp_bh.b_blocknr);
+		if (bh) {
+			bh->b_state |= tmp_bh.b_state;
+			return bh;
+		}
+		err = -EIO;
+	}
+	return ERR_PTR(err);
+}
+
+static ssize_t
+affs_file_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
+{
+	ssize_t retval;
+
+	retval = generic_file_write (file, buf, count, ppos);
+	if (retval >0) {
+		struct inode *inode = file->f_dentry->d_inode;
+		inode->i_ctime = inode->i_mtime = CURRENT_TIME;
+		mark_inode_dirty(inode);
+	}
+	return retval;
+}
+
+static int
+affs_do_readpage_ofs(struct file *file, struct page *page, unsigned from, unsigned to)
+{
+	struct inode *inode = page->mapping->host;
+	struct super_block *sb = inode->i_sb;
+	struct buffer_head *bh;
+	char *data;
+	u32 bidx, boff, bsize;
+	u32 tmp;
+
+	pr_debug("AFFS: read_page(%u, %ld, %d, %d)\n", (u32)inode->i_ino, page->index, from, to);
+	if (from > to || to > PAGE_CACHE_SIZE)
+		BUG();
+	data = page_address(page);
+	bsize = AFFS_SB->s_data_blksize;
+	tmp = (page->index << PAGE_CACHE_SHIFT) + from;
+	bidx = tmp / bsize;
+	boff = tmp % bsize;
+
+	while (from < to) {
+		bh = affs_bread_ino(inode, bidx, 0);
+		if (IS_ERR(bh))
+			return PTR_ERR(bh);
+		tmp = min(bsize - boff, to - from);
+		if (from + tmp > to || tmp > bsize)
+			BUG();
+		memcpy(data + from, AFFS_DATA(bh) + boff, tmp);
+		affs_brelse(bh);
+		bidx++;
+		from += tmp;
+		boff = 0;
+	}
+	return 0;
+}
+
+static int
+affs_extent_file_ofs(struct inode *inode, u32 newsize)
+{
+	struct super_block *sb = inode->i_sb;
+	struct buffer_head *bh, *prev_bh;
+	u32 bidx, boff;
+	u32 size, bsize;
+	u32 tmp;
+
+	pr_debug("AFFS: extent_file(%u, %d)\n", (u32)inode->i_ino, newsize);
+	bsize = AFFS_SB->s_data_blksize;
+	bh = NULL;
+	size = AFFS_INODE->mmu_private;
+	bidx = size / bsize;
+	boff = size % bsize;
+	if (boff) {
+		bh = affs_bread_ino(inode, bidx, 0);
+		if (IS_ERR(bh))
+			return PTR_ERR(bh);
+		tmp = min(bsize - boff, newsize - size);
+		if (boff + tmp > bsize || tmp > bsize)
+			BUG();
+		memset(AFFS_DATA(bh) + boff, 0, tmp);
+		AFFS_DATA_HEAD(bh)->size = cpu_to_be32(be32_to_cpu(AFFS_DATA_HEAD(bh)->size) + tmp);
+		affs_fix_checksum(sb, bh);
+		mark_buffer_dirty_inode(bh, inode);
+		size += tmp;
+		bidx++;
+	} else if (bidx) {
+		bh = affs_bread_ino(inode, bidx - 1, 0);
+		if (IS_ERR(bh))
+			return PTR_ERR(bh);
+	}
+
+	while (size < newsize) {
+		prev_bh = bh;
+		bh = affs_getzeroblk_ino(inode, bidx);
+		if (IS_ERR(bh))
+			goto out;
+		tmp = min(bsize, newsize - size);
+		if (tmp > bsize)
+			BUG();
+		AFFS_DATA_HEAD(bh)->ptype = cpu_to_be32(T_DATA);
+		AFFS_DATA_HEAD(bh)->key = cpu_to_be32(inode->i_ino);
+		AFFS_DATA_HEAD(bh)->sequence = cpu_to_be32(bidx);
+		AFFS_DATA_HEAD(bh)->size = cpu_to_be32(tmp);
+		affs_fix_checksum(sb, bh);
+		bh->b_state &= ~(1UL << BH_New);
+		mark_buffer_dirty_inode(bh, inode);
+		if (prev_bh) {
+			u32 tmp = be32_to_cpu(AFFS_DATA_HEAD(prev_bh)->next);
+			if (tmp)
+				affs_warning(sb, "extent_file_ofs", "next block already set for %d (%d)", bidx, tmp);
+			AFFS_DATA_HEAD(prev_bh)->next = cpu_to_be32(bh->b_blocknr);
+			affs_adjust_checksum(prev_bh, bh->b_blocknr - tmp);
+			mark_buffer_dirty_inode(prev_bh, inode);
+			affs_brelse(prev_bh);
+		}
+		size += bsize;
+		bidx++;
+	}
+	affs_brelse(bh);
+	inode->i_size = AFFS_INODE->mmu_private = newsize;
+	return 0;
+
+out:
+	inode->i_size = AFFS_INODE->mmu_private = size;
+	return PTR_ERR(bh);
+}
+
+static int
+affs_readpage_ofs(struct file *file, struct page *page)
+{
+	struct inode *inode = page->mapping->host;
+	u32 to;
+	int err;
+
+	pr_debug("AFFS: read_page(%u, %ld)\n", (u32)inode->i_ino, page->index);
+	to = PAGE_CACHE_SIZE;
+	if (((page->index + 1) << PAGE_CACHE_SHIFT) > inode->i_size) {
+		to = inode->i_size & ~PAGE_CACHE_MASK;
+		memset(page_address(page) + to, 0, PAGE_CACHE_SIZE - to);
+	}
+
+	err = affs_do_readpage_ofs(file, page, 0, to);
+	if (!err)
+		SetPageUptodate(page);
+	UnlockPage(page);
+	return err;
+}
+
+static int affs_prepare_write_ofs(struct file *file, struct page *page, unsigned from, unsigned to)
+{
+	struct inode *inode = page->mapping->host;
+	u32 size, offset;
+	u32 tmp;
+	int err = 0;
+
+	pr_debug("AFFS: prepare_write(%u, %ld, %d, %d)\n", (u32)inode->i_ino, page->index, from, to);
+	offset = page->index << PAGE_CACHE_SHIFT;
+	if (offset + from > AFFS_INODE->mmu_private) {
+		err = affs_extent_file_ofs(inode, offset + from);
+		if (err)
+			return err;
+	}
+	size = inode->i_size;
+
+	if (Page_Uptodate(page))
+		return 0;
+
+	if (from) {
+		err = affs_do_readpage_ofs(file, page, 0, from);
+		if (err)
+			return err;
+	}
+	if (to < PAGE_CACHE_SIZE) {
+		memset(page_address(page) + to, 0, PAGE_CACHE_SIZE - to);
+		if (size > offset + to) {
+			if (size < offset + PAGE_CACHE_SIZE)
+				tmp = size & ~PAGE_CACHE_MASK;
+			else
+				tmp = PAGE_CACHE_SIZE;
+			err = affs_do_readpage_ofs(file, page, to, tmp);
+		}
+	}
+	return err;
+}
+
+static int affs_commit_write_ofs(struct file *file, struct page *page, unsigned from, unsigned to)
+{
+	struct inode *inode = page->mapping->host;
+	struct super_block *sb = inode->i_sb;
+	struct buffer_head *bh, *prev_bh;
+	char *data;
+	u32 bidx, boff, bsize;
+	u32 tmp;
+	int written;
+
+	pr_debug("AFFS: commit_write(%u, %ld, %d, %d)\n", (u32)inode->i_ino, page->index, from, to);
+	bsize = AFFS_SB->s_data_blksize;
+	data = page_address(page);
+
+	bh = NULL;
+	written = 0;
+	tmp = (page->index << PAGE_CACHE_SHIFT) + from;
+	bidx = tmp / bsize;
+	boff = tmp % bsize;
+	if (boff) {
+		bh = affs_bread_ino(inode, bidx, 0);
+		if (IS_ERR(bh))
+			return PTR_ERR(bh);
+		tmp = min(bsize - boff, to - from);
+		if (boff + tmp > bsize || tmp > bsize)
+			BUG();
+		memcpy(AFFS_DATA(bh) + boff, data + from, tmp);
+		AFFS_DATA_HEAD(bh)->size = cpu_to_be32(be32_to_cpu(AFFS_DATA_HEAD(bh)->size) + tmp);
+		affs_fix_checksum(sb, bh);
+		mark_buffer_dirty_inode(bh, inode);
+		written += tmp;
+		from += tmp;
+		bidx++;
+	} else if (bidx) {
+		bh = affs_bread_ino(inode, bidx - 1, 0);
+		if (IS_ERR(bh))
+			return PTR_ERR(bh);
+	}
+	while (from + bsize <= to) {
+		prev_bh = bh;
+		bh = affs_getemptyblk_ino(inode, bidx);
+		if (IS_ERR(bh))
+			goto out;
+		memcpy(AFFS_DATA(bh), data + from, bsize);
+		if (bh->b_state & (1UL << BH_New)) {
+			AFFS_DATA_HEAD(bh)->ptype = cpu_to_be32(T_DATA);
+			AFFS_DATA_HEAD(bh)->key = cpu_to_be32(inode->i_ino);
+			AFFS_DATA_HEAD(bh)->sequence = cpu_to_be32(bidx);
+			AFFS_DATA_HEAD(bh)->size = cpu_to_be32(bsize);
+			AFFS_DATA_HEAD(bh)->next = 0;
+			bh->b_state &= ~(1UL << BH_New);
+			if (prev_bh) {
+				u32 tmp = be32_to_cpu(AFFS_DATA_HEAD(prev_bh)->next);
+				if (tmp)
+					affs_warning(sb, "commit_write_ofs", "next block already set for %d (%d)", bidx, tmp);
+				AFFS_DATA_HEAD(prev_bh)->next = cpu_to_be32(bh->b_blocknr);
+				affs_adjust_checksum(prev_bh, bh->b_blocknr - tmp);
+				mark_buffer_dirty_inode(prev_bh, inode);
+			}
+		}
+		affs_brelse(prev_bh);
+		affs_fix_checksum(sb, bh);
+		mark_buffer_dirty_inode(bh, inode);
+		written += bsize;
+		from += bsize;
+		bidx++;
+	}
+	if (from < to) {
+		prev_bh = bh;
+		bh = affs_bread_ino(inode, bidx, 1);
+		if (IS_ERR(bh))
+			goto out;
+		tmp = min(bsize, to - from);
+		if (tmp > bsize)
+			BUG();
+		memcpy(AFFS_DATA(bh), data + from, tmp);
+		if (bh->b_state & (1UL << BH_New)) {
+			AFFS_DATA_HEAD(bh)->ptype = cpu_to_be32(T_DATA);
+			AFFS_DATA_HEAD(bh)->key = cpu_to_be32(inode->i_ino);
+			AFFS_DATA_HEAD(bh)->sequence = cpu_to_be32(bidx);
+			AFFS_DATA_HEAD(bh)->size = cpu_to_be32(tmp);
+			AFFS_DATA_HEAD(bh)->next = 0;
+			bh->b_state &= ~(1UL << BH_New);
+			if (prev_bh) {
+				u32 tmp = be32_to_cpu(AFFS_DATA_HEAD(prev_bh)->next);
+				if (tmp)
+					affs_warning(sb, "commit_write_ofs", "next block already set for %d (%d)", bidx, tmp);
+				AFFS_DATA_HEAD(prev_bh)->next = cpu_to_be32(bh->b_blocknr);
+				affs_adjust_checksum(prev_bh, bh->b_blocknr - tmp);
+				mark_buffer_dirty_inode(prev_bh, inode);
+			}
+		} else if (be32_to_cpu(AFFS_DATA_HEAD(bh)->size) < tmp)
+			AFFS_DATA_HEAD(bh)->size = cpu_to_be32(tmp);
+		affs_brelse(prev_bh);
+		affs_fix_checksum(sb, bh);
+		mark_buffer_dirty_inode(bh, inode);
+		written += tmp;
+		from += tmp;
+		bidx++;
+	}
+	SetPageUptodate(page);
+
+done:
+	affs_brelse(bh);
+	tmp = (page->index << PAGE_CACHE_SHIFT) + from;
+	if (tmp > inode->i_size)
+		inode->i_size = AFFS_INODE->mmu_private = tmp;
+
+	return written;
+
+out:
+	bh = prev_bh;
+	if (!written)
+		written = PTR_ERR(bh);
+	goto done;
+}
+
+struct address_space_operations affs_aops_ofs = {
+	readpage: affs_readpage_ofs,
+	//writepage: affs_writepage_ofs,
+	//sync_page: affs_sync_page_ofs,
+	prepare_write: affs_prepare_write_ofs,
+	commit_write: affs_commit_write_ofs
+};
+
+/* Free any preallocated blocks. */
+
+void
+affs_free_prealloc(struct inode *inode)
+{
+	struct super_block *sb = inode->i_sb;
+
+	pr_debug("AFFS: free_prealloc(ino=%lu)\n", inode->i_ino);
+
+	while (inode->u.affs_i.i_pa_cnt) {
+		inode->u.affs_i.i_pa_cnt--;
+		affs_free_block(sb, ++inode->u.affs_i.i_lastalloc);
+	}
+}
+
+/* Truncate (or enlarge) a file to the requested size. */
+
+void
+affs_truncate(struct inode *inode)
+{
+	struct super_block *sb = inode->i_sb;
+	u32 ext, ext_key;
+	u32 last_blk, blkcnt, blk;
+	u32 size;
+	struct buffer_head *ext_bh;
+	int i;
+
+	pr_debug("AFFS: truncate(inode=%d, oldsize=%u, newsize=%u)\n",
+		 (u32)inode->i_ino, (u32)AFFS_INODE->mmu_private, (u32)inode->i_size);
+
+	last_blk = 0;
+	ext = 0;
+	if (inode->i_size) {
+		last_blk = ((u32)inode->i_size - 1) / AFFS_SB->s_data_blksize;
+		ext = last_blk / AFFS_SB->s_hashsize;
+	}
+
+	if (inode->i_size > AFFS_INODE->mmu_private) {
+		struct address_space *mapping = inode->i_mapping;
+		struct page *page;
+		u32 size = inode->i_size - 1;
+		int res;
+
+		page = grab_cache_page(mapping, size >> PAGE_CACHE_SHIFT);
+		if (!page)
+			return;
+		size = (size & (PAGE_CACHE_SIZE - 1)) + 1;
+		res = mapping->a_ops->prepare_write(NULL, page, size, size);
+		if (!res)
+			res = mapping->a_ops->commit_write(NULL, page, size, size);
+		UnlockPage(page);
+		page_cache_release(page);
+		mark_inode_dirty(inode);
+		return;
+	} else if (inode->i_size == AFFS_INODE->mmu_private)
+		return;
+
+	// lock cache
+	ext_bh = affs_get_extblock(inode, ext);
+	if (IS_ERR(ext_bh)) {
+		affs_warning(sb, "truncate", "unexpected read error for ext block %u (%d)",
+			     ext, PTR_ERR(ext_bh));
+		return;
+	}
+	if (AFFS_INODE->i_lc) {
+		/* clear linear cache */
+		i = (ext + 1) >> AFFS_INODE->i_lc_shift;
+		if (AFFS_INODE->i_lc_size > i) {
+			AFFS_INODE->i_lc_size = i;
+			for (; i < AFFS_LC_SIZE; i++)
+				AFFS_INODE->i_lc[i] = 0;
+		}
+		/* clear associative cache */
+		for (i = 0; i < AFFS_AC_SIZE; i++)
+			if (AFFS_INODE->i_ac[i].ext >= ext)
+				AFFS_INODE->i_ac[i].ext = 0;
+	}
+	ext_key = be32_to_cpu(AFFS_TAIL(sb, ext_bh)->extension);
+
+	blkcnt = AFFS_INODE->i_blkcnt;
+	i = 0;
+	blk = last_blk;
+	if (inode->i_size) {
+		i = last_blk % AFFS_SB->s_hashsize + 1;
+		blk++;
+	} else
+		AFFS_HEAD(ext_bh)->first_data = 0;
+	size = AFFS_SB->s_hashsize;
+	if (size > blkcnt - blk + i)
+		size = blkcnt - blk + i;
+	for (; i < size; i++, blk++) {
+		affs_free_block(sb, be32_to_cpu(AFFS_BLOCK(sb, ext_bh, i)));
+		AFFS_BLOCK(sb, ext_bh, i) = 0;
+	}
+	AFFS_TAIL(sb, ext_bh)->extension = 0;
+	affs_fix_checksum(sb, ext_bh);
+	mark_buffer_dirty_inode(ext_bh, inode);
+	affs_brelse(ext_bh);
+
+	if (inode->i_size) {
+		AFFS_INODE->i_blkcnt = last_blk + 1;
+		AFFS_INODE->i_extcnt = ext + 1;
+		if (AFFS_SB->s_flags & SF_OFS) {
+			struct buffer_head *bh = affs_bread_ino(inode, last_blk, 0);
+			u32 tmp;
+			if (IS_ERR(bh)) {
+				affs_warning(sb, "truncate", "unexpected read error for last block %u (%d)",
+					     last_blk, PTR_ERR(bh));
+				return;
+			}
+			tmp = be32_to_cpu(AFFS_DATA_HEAD(bh)->next);
+			AFFS_DATA_HEAD(bh)->next = 0;
+			affs_adjust_checksum(bh, -tmp);
+			affs_brelse(bh);
+		}
+	} else {
+		AFFS_INODE->i_blkcnt = 0;
+		AFFS_INODE->i_extcnt = 1;
+	}
+	AFFS_INODE->mmu_private = inode->i_size;
+	// unlock cache
+
+	while (ext_key) {
+		ext_bh = affs_bread(sb, ext_key);
+		size = AFFS_SB->s_hashsize;
+		if (size > blkcnt - blk)
+			size = blkcnt - blk;
+		for (i = 0; i < size; i++, blk++)
+			affs_free_block(sb, be32_to_cpu(AFFS_BLOCK(sb, ext_bh, i)));
+		affs_free_block(sb, ext_key);
+		ext_key = be32_to_cpu(AFFS_TAIL(sb, ext_bh)->extension);
+		affs_brelse(ext_bh);
+	}
+	affs_free_prealloc(inode);
+}
diff --git a/fs/affs/inode.c b/fs/affs/inode.c
new file mode 100644
index 00000000000000..b7f9365a972ff1
--- /dev/null
+++ b/fs/affs/inode.c
@@ -0,0 +1,417 @@
+/*
+ *  linux/fs/affs/inode.c
+ *
+ *  (c) 1996  Hans-Joachim Widmaier - Rewritten
+ *
+ *  (C) 1993  Ray Burr - Modified for Amiga FFS filesystem.
+ *
+ *  (C) 1992  Eric Youngdale Modified for ISO9660 filesystem.
+ *
+ *  (C) 1991  Linus Torvalds - minix filesystem
+ */
+
+#include <asm/div64.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/slab.h>
+#include <linux/stat.h>
+#include <linux/sched.h>
+#include <linux/affs_fs.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/string.h>
+#include <linux/locks.h>
+#include <linux/genhd.h>
+#include <linux/amigaffs.h>
+#include <linux/major.h>
+#include <linux/blkdev.h>
+#include <linux/init.h>
+#include <linux/smp_lock.h>
+#include <asm/system.h>
+#include <asm/uaccess.h>
+#include <linux/module.h>
+
+extern struct inode_operations affs_symlink_inode_operations;
+extern struct timezone sys_tz;
+
+void
+affs_read_inode(struct inode *inode)
+{
+	struct super_block	*sb = inode->i_sb;
+	struct buffer_head	*bh;
+	struct affs_head	*head;
+	struct affs_tail	*tail;
+	u32			 block;
+	u32			 size;
+	u32			 prot;
+	u16			 id;
+
+	pr_debug("AFFS: read_inode(%lu)\n",inode->i_ino);
+
+	block = inode->i_ino;
+	bh = affs_bread(sb, block);
+	if (!bh) {
+		affs_warning(sb, "read_inode", "Cannot read block %d", block);
+		goto bad_inode;
+	}
+	if (affs_checksum_block(sb, bh) || be32_to_cpu(AFFS_HEAD(bh)->ptype) != T_SHORT) {
+		affs_warning(sb,"read_inode",
+			   "Checksum or type (ptype=%d) error on inode %d",
+			   AFFS_HEAD(bh)->ptype, block);
+		goto bad_inode;
+	}
+
+	head = AFFS_HEAD(bh);
+	tail = AFFS_TAIL(sb, bh);
+	prot = be32_to_cpu(tail->protect);
+
+	inode->i_size = 0;
+	inode->i_nlink = 1;
+	inode->i_mode = 0;
+	memset(AFFS_INODE, 0, sizeof(*AFFS_INODE));
+	init_MUTEX(&AFFS_INODE->i_link_lock);
+	init_MUTEX(&AFFS_INODE->i_ext_lock);
+	AFFS_INODE->i_extcnt = 1;
+	AFFS_INODE->i_ext_last = ~1;
+	AFFS_INODE->i_protect = prot;
+
+	if (AFFS_SB->s_flags & SF_SETMODE)
+		inode->i_mode = AFFS_SB->s_mode;
+	else
+		inode->i_mode = prot_to_mode(prot);
+
+	id = be16_to_cpu(tail->uid);
+	if (id == 0 || AFFS_SB->s_flags & SF_SETUID)
+		inode->i_uid = AFFS_SB->s_uid;
+	else if (id == 0xFFFF && AFFS_SB->s_flags & SF_MUFS)
+		inode->i_uid = 0;
+	else
+		inode->i_uid = id;
+
+	id = be16_to_cpu(tail->gid);
+	if (id == 0 || AFFS_SB->s_flags & SF_SETGID)
+		inode->i_gid = AFFS_SB->s_gid;
+	else if (id == 0xFFFF && AFFS_SB->s_flags & SF_MUFS)
+		inode->i_gid = 0;
+	else
+		inode->i_gid = id;
+
+	switch (be32_to_cpu(tail->stype)) {
+	case ST_ROOT:
+		inode->i_uid = AFFS_SB->s_uid;
+		inode->i_gid = AFFS_SB->s_gid;
+		/* fall through */
+	case ST_USERDIR:
+		if (be32_to_cpu(tail->stype) == ST_USERDIR ||
+		    AFFS_SB->s_flags & SF_SETMODE) {
+			if (inode->i_mode & S_IRUSR)
+				inode->i_mode |= S_IXUSR;
+			if (inode->i_mode & S_IRGRP)
+				inode->i_mode |= S_IXGRP;
+			if (inode->i_mode & S_IROTH)
+				inode->i_mode |= S_IXOTH;
+			inode->i_mode |= S_IFDIR;
+		} else
+			inode->i_mode = S_IRUGO | S_IXUGO | S_IWUSR | S_IFDIR;
+		if (tail->link_chain)
+			inode->i_nlink = 2;
+		/* Maybe it should be controlled by mount parameter? */
+		//inode->i_mode |= S_ISVTX;
+		inode->i_op = &affs_dir_inode_operations;
+		inode->i_fop = &affs_dir_operations;
+		break;
+	case ST_LINKDIR:
+#if 0
+		affs_warning(sb, "read_inode", "inode is LINKDIR");
+		goto bad_inode;
+#else
+		inode->i_mode |= S_IFDIR;
+		inode->i_op = NULL;
+		inode->i_fop = NULL;
+		break;
+#endif
+	case ST_LINKFILE:
+		affs_warning(sb, "read_inode", "inode is LINKFILE");
+		goto bad_inode;
+	case ST_FILE:
+		size = be32_to_cpu(tail->size);
+		inode->i_mode |= S_IFREG;
+		AFFS_INODE->mmu_private = inode->i_size = size;
+		if (inode->i_size) {
+			AFFS_INODE->i_blkcnt = (size - 1) /
+					       AFFS_SB->s_data_blksize + 1;
+			AFFS_INODE->i_extcnt = (AFFS_INODE->i_blkcnt - 1) /
+					       AFFS_SB->s_hashsize + 1;
+		}
+		if (tail->link_chain)
+			inode->i_nlink = 2;
+		inode->i_mapping->a_ops = (AFFS_SB->s_flags & SF_OFS) ? &affs_aops_ofs : &affs_aops;
+		inode->i_op = &affs_file_inode_operations;
+		inode->i_fop = &affs_file_operations;
+		break;
+	case ST_SOFTLINK:
+		inode->i_mode |= S_IFLNK;
+		inode->i_op = &affs_symlink_inode_operations;
+		inode->i_data.a_ops = &affs_symlink_aops;
+		break;
+	}
+
+	inode->i_mtime = inode->i_atime = inode->i_ctime
+		       = (be32_to_cpu(tail->change.days) * (24 * 60 * 60) +
+		         be32_to_cpu(tail->change.mins) * 60 +
+			 be32_to_cpu(tail->change.ticks) / 50 +
+			 ((8 * 365 + 2) * 24 * 60 * 60)) +
+			 sys_tz.tz_minuteswest * 60;
+	affs_brelse(bh);
+	return;
+
+bad_inode:
+	make_bad_inode(inode);
+	affs_brelse(bh);
+	return;
+}
+
+void
+affs_write_inode(struct inode *inode, int unused)
+{
+	struct super_block	*sb = inode->i_sb;
+	struct buffer_head	*bh;
+	struct affs_tail	*tail;
+	uid_t			 uid;
+	gid_t			 gid;
+
+	pr_debug("AFFS: write_inode(%lu)\n",inode->i_ino);
+
+	if (!inode->i_nlink)
+		// possibly free block
+		return;
+	lock_kernel();
+	bh = affs_bread(sb, inode->i_ino);
+	if (!bh) {
+		affs_error(sb,"write_inode","Cannot read block %lu",inode->i_ino);
+		unlock_kernel();
+		return;
+	}
+	tail = AFFS_TAIL(sb, bh);
+	if (tail->stype == be32_to_cpu(ST_ROOT)) {
+		secs_to_datestamp(inode->i_mtime,&AFFS_ROOT_TAIL(sb, bh)->root_change);
+	} else {
+		tail->protect = cpu_to_be32(AFFS_INODE->i_protect);
+		tail->size = cpu_to_be32(inode->i_size);
+		secs_to_datestamp(inode->i_mtime,&tail->change);
+		if (!(inode->i_ino == AFFS_SB->s_root_block)) {
+			uid = inode->i_uid;
+			gid = inode->i_gid;
+			if (sb->u.affs_sb.s_flags & SF_MUFS) {
+				if (inode->i_uid == 0 || inode->i_uid == 0xFFFF)
+					uid = inode->i_uid ^ ~0;
+				if (inode->i_gid == 0 || inode->i_gid == 0xFFFF)
+					gid = inode->i_gid ^ ~0;
+			}
+			if (!(sb->u.affs_sb.s_flags & SF_SETUID))
+				tail->uid = cpu_to_be16(uid);
+			if (!(sb->u.affs_sb.s_flags & SF_SETGID))
+				tail->gid = cpu_to_be16(gid);
+		}
+	}
+	affs_fix_checksum(sb, bh);
+	mark_buffer_dirty_inode(bh, inode);
+	affs_brelse(bh);
+	unlock_kernel();
+}
+
+int
+affs_notify_change(struct dentry *dentry, struct iattr *attr)
+{
+	struct inode *inode = dentry->d_inode;
+	int error;
+
+	pr_debug("AFFS: notify_change(%lu,0x%x)\n",inode->i_ino,attr->ia_valid);
+
+	error = inode_change_ok(inode,attr);
+	if (error)
+		goto out;
+
+	if (((attr->ia_valid & ATTR_UID) && (inode->i_sb->u.affs_sb.s_flags & SF_SETUID)) ||
+	    ((attr->ia_valid & ATTR_GID) && (inode->i_sb->u.affs_sb.s_flags & SF_SETGID)) ||
+	    ((attr->ia_valid & ATTR_MODE) &&
+	     (inode->i_sb->u.affs_sb.s_flags & (SF_SETMODE | SF_IMMUTABLE)))) {
+		if (!(inode->i_sb->u.affs_sb.s_flags & SF_QUIET))
+			error = -EPERM;
+		goto out;
+	}
+
+	inode_setattr(inode, attr);
+	if (!error && (attr->ia_valid & ATTR_MODE))
+		mode_to_prot(inode);
+out:
+	return error;
+}
+
+void
+affs_put_inode(struct inode *inode)
+{
+	pr_debug("AFFS: put_inode(ino=%lu, nlink=%u)\n", inode->i_ino, inode->i_nlink);
+	lock_kernel();
+	affs_free_prealloc(inode);
+	if (atomic_read(&inode->i_count) == 1) {
+		if (inode->i_size != AFFS_INODE->mmu_private)
+			affs_truncate(inode);
+		//if (inode->i_nlink)
+		//	affs_clear_inode(inode);
+	}
+	unlock_kernel();
+}
+
+void
+affs_delete_inode(struct inode *inode)
+{
+	pr_debug("AFFS: delete_inode(ino=%lu, nlink=%u)\n", inode->i_ino, inode->i_nlink);
+	lock_kernel();
+	inode->i_size = 0;
+	if (S_ISREG(inode->i_mode))
+		affs_truncate(inode);
+	clear_inode(inode);
+	affs_free_block(inode->i_sb, inode->i_ino);
+	unlock_kernel();
+}
+
+void
+affs_clear_inode(struct inode *inode)
+{
+	unsigned long cache_page = (unsigned long) inode->u.affs_i.i_lc;
+
+	pr_debug("AFFS: clear_inode(ino=%lu, nlink=%u)\n", inode->i_ino, inode->i_nlink);
+	if (cache_page) {
+		pr_debug("AFFS: freeing ext cache\n");
+		inode->u.affs_i.i_lc = NULL;
+		inode->u.affs_i.i_ac = NULL;
+		free_page(cache_page);
+	}
+	affs_brelse(AFFS_INODE->i_ext_bh);
+	AFFS_INODE->i_ext_last = ~1;
+	AFFS_INODE->i_ext_bh = NULL;
+}
+
+struct inode *
+affs_new_inode(struct inode *dir)
+{
+	struct super_block	*sb = dir->i_sb;
+	struct inode		*inode;
+	u32			 block;
+	struct buffer_head	*bh;
+
+	if (!(inode = new_inode(sb)))
+		goto err_inode;
+
+	if (!(block = affs_alloc_block(dir, dir->i_ino)))
+		goto err_block;
+
+	bh = affs_getzeroblk(sb, block);
+	if (!bh)
+		goto err_bh;
+	mark_buffer_dirty_inode(bh, inode);
+	affs_brelse(bh);
+
+	inode->i_uid     = current->fsuid;
+	inode->i_gid     = current->fsgid;
+	inode->i_ino     = block;
+	inode->i_nlink   = 1;
+	inode->i_mtime   = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+	memset(AFFS_INODE, 0, sizeof(*AFFS_INODE));
+	AFFS_INODE->i_extcnt = 1;
+	AFFS_INODE->i_ext_last = ~1;
+	init_MUTEX(&AFFS_INODE->i_link_lock);
+	init_MUTEX(&AFFS_INODE->i_ext_lock);
+
+	insert_inode_hash(inode);
+
+	return inode;
+
+err_bh:
+	affs_free_block(sb, block);
+err_block:
+	iput(inode);
+err_inode:
+	return NULL;
+}
+
+/*
+ * Add an entry to a directory. Create the header block
+ * and insert it into the hash table.
+ */
+
+int
+affs_add_entry(struct inode *dir, struct inode *inode, struct dentry *dentry, s32 type)
+{
+	struct super_block *sb = dir->i_sb;
+	struct buffer_head *inode_bh = NULL;
+	struct buffer_head *bh = NULL;
+	u32 block = 0;
+	int retval;
+
+	pr_debug("AFFS: add_entry(dir=%u, inode=%u, \"%*s\", type=%d)\n", (u32)dir->i_ino,
+	         (u32)inode->i_ino, (int)dentry->d_name.len, dentry->d_name.name, type);
+
+	retval = -EIO;
+	bh = affs_bread(sb, inode->i_ino);
+	if (!bh)
+		goto done;
+
+	affs_lock_link(inode);
+	switch (type) {
+	case ST_LINKFILE:
+	case ST_LINKDIR:
+		inode_bh = bh;
+		retval = -ENOSPC;
+		block = affs_alloc_block(dir, dir->i_ino);
+		if (!block)
+			goto err;
+		retval = -EIO;
+		bh = affs_getzeroblk(sb, block);
+		if (!bh)
+			goto err;
+		break;
+	default:
+		break;
+	}
+
+	AFFS_HEAD(bh)->ptype = cpu_to_be32(T_SHORT);
+	AFFS_HEAD(bh)->key = cpu_to_be32(bh->b_blocknr);
+	affs_copy_name(AFFS_TAIL(sb, bh)->name, dentry);
+	AFFS_TAIL(sb, bh)->stype = cpu_to_be32(type);
+	AFFS_TAIL(sb, bh)->parent = cpu_to_be32(dir->i_ino);
+
+	if (inode_bh) {
+		u32 chain;
+	       	chain = AFFS_TAIL(sb, inode_bh)->link_chain;
+		AFFS_TAIL(sb, bh)->original = cpu_to_be32(inode->i_ino);
+		AFFS_TAIL(sb, bh)->link_chain = chain;
+		AFFS_TAIL(sb, inode_bh)->link_chain = cpu_to_be32(block);
+		affs_adjust_checksum(inode_bh, block - be32_to_cpu(chain));
+		mark_buffer_dirty_inode(inode_bh, inode);
+		inode->i_nlink = 2;
+		atomic_inc(&inode->i_count);
+	}
+	affs_fix_checksum(sb, bh);
+	mark_buffer_dirty_inode(bh, inode);
+	dentry->d_fsdata = (void *)bh->b_blocknr;
+
+	affs_lock_dir(dir);
+	retval = affs_insert_hash(dir, bh);
+	mark_buffer_dirty_inode(bh, inode);
+	affs_unlock_dir(dir);
+	affs_unlock_link(inode);
+
+	d_instantiate(dentry, inode);
+done:
+	affs_brelse(inode_bh);
+	affs_brelse(bh);
+	return retval;
+err:
+	if (block)
+		affs_free_block(sb, block);
+	affs_unlock_link(inode);
+	goto done;
+}
+MODULE_LICENSE("GPL");
diff --git a/fs/affs/namei.c b/fs/affs/namei.c
new file mode 100644
index 00000000000000..cd32c3b8150b2a
--- /dev/null
+++ b/fs/affs/namei.c
@@ -0,0 +1,470 @@
+/*
+ *  linux/fs/affs/namei.c
+ *
+ *  (c) 1996  Hans-Joachim Widmaier - Rewritten
+ *
+ *  (C) 1993  Ray Burr - Modified for Amiga FFS filesystem.
+ *
+ *  (C) 1991  Linus Torvalds - minix filesystem
+ */
+
+#include <linux/sched.h>
+#include <linux/affs_fs.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/stat.h>
+#include <linux/fcntl.h>
+#include <linux/locks.h>
+#include <linux/amigaffs.h>
+#include <asm/uaccess.h>
+
+#include <linux/errno.h>
+
+typedef int (*toupper_t)(int);
+
+extern struct inode_operations affs_symlink_inode_operations;
+
+static int	 affs_toupper(int ch);
+static int	 affs_hash_dentry(struct dentry *, struct qstr *);
+static int       affs_compare_dentry(struct dentry *, struct qstr *, struct qstr *);
+static int	 affs_intl_toupper(int ch);
+static int	 affs_intl_hash_dentry(struct dentry *, struct qstr *);
+static int       affs_intl_compare_dentry(struct dentry *, struct qstr *, struct qstr *);
+
+struct dentry_operations affs_dentry_operations = {
+	d_hash:		affs_hash_dentry,
+	d_compare:	affs_compare_dentry,
+};
+
+struct dentry_operations affs_intl_dentry_operations = {
+	d_hash:		affs_intl_hash_dentry,
+	d_compare:	affs_intl_compare_dentry,
+};
+
+
+/* Simple toupper() for DOS\1 */
+
+static int
+affs_toupper(int ch)
+{
+	return ch >= 'a' && ch <= 'z' ? ch -= ('a' - 'A') : ch;
+}
+
+/* International toupper() for DOS\3 ("international") */
+
+static int
+affs_intl_toupper(int ch)
+{
+	return (ch >= 'a' && ch <= 'z') || (ch >= 0xE0
+		&& ch <= 0xFE && ch != 0xF7) ?
+		ch - ('a' - 'A') : ch;
+}
+
+static inline toupper_t
+affs_get_toupper(struct super_block *sb)
+{
+	return AFFS_SB->s_flags & SF_INTL ? affs_intl_toupper : affs_toupper;
+}
+
+/*
+ * Note: the dentry argument is the parent dentry.
+ */
+static inline int
+__affs_hash_dentry(struct dentry *dentry, struct qstr *qstr, toupper_t toupper)
+{
+	const u8 *name = qstr->name;
+	unsigned long hash;
+	int i;
+
+	i = affs_check_name(qstr->name,qstr->len);
+	if (i)
+		return i;
+
+	hash = init_name_hash();
+	i = min(qstr->len, 30u);
+	for (; i > 0; name++, i--)
+		hash = partial_name_hash(toupper(*name), hash);
+	qstr->hash = end_name_hash(hash);
+
+	return 0;
+}
+
+static int
+affs_hash_dentry(struct dentry *dentry, struct qstr *qstr)
+{
+	return __affs_hash_dentry(dentry, qstr, affs_toupper);
+}
+static int
+affs_intl_hash_dentry(struct dentry *dentry, struct qstr *qstr)
+{
+	return __affs_hash_dentry(dentry, qstr, affs_intl_toupper);
+}
+
+static inline int
+__affs_compare_dentry(struct dentry *dentry, struct qstr *a, struct qstr *b, toupper_t toupper)
+{
+	const u8 *aname = a->name;
+	const u8 *bname = b->name;
+	int len;
+
+	/* 'a' is the qstr of an already existing dentry, so the name
+	 * must be valid. 'b' must be validated first.
+	 */
+
+	if (affs_check_name(b->name,b->len))
+		return 1;
+
+	/* If the names are longer than the allowed 30 chars,
+	 * the excess is ignored, so their length may differ.
+	 */
+	len = a->len;
+	if (len >= 30) {
+		if (b->len < 30)
+			return 1;
+		len = 30;
+	} else if (len != b->len)
+		return 1;
+
+	for (; len > 0; len--)
+		if (toupper(*aname++) != toupper(*bname++))
+			return 1;
+
+	return 0;
+}
+
+static int
+affs_compare_dentry(struct dentry *dentry, struct qstr *a, struct qstr *b)
+{
+	return __affs_compare_dentry(dentry, a, b, affs_toupper);
+}
+static int
+affs_intl_compare_dentry(struct dentry *dentry, struct qstr *a, struct qstr *b)
+{
+	return __affs_compare_dentry(dentry, a, b, affs_intl_toupper);
+}
+
+/*
+ * NOTE! unlike strncmp, affs_match returns 1 for success, 0 for failure.
+ */
+
+static inline int
+affs_match(struct dentry *dentry, const u8 *name2, toupper_t toupper)
+{
+	const u8 *name = dentry->d_name.name;
+	int len = dentry->d_name.len;
+
+	if (len >= 30) {
+		if (*name2 < 30)
+			return 0;
+		len = 30;
+	} else if (len != *name2)
+		return 0;
+
+	for (name2++; len > 0; len--)
+		if (toupper(*name++) != toupper(*name2++))
+			return 0;
+	return 1;
+}
+
+int
+affs_hash_name(struct super_block *sb, const u8 *name, unsigned int len)
+{
+	toupper_t toupper = affs_get_toupper(sb);
+	int hash;
+
+	hash = len = min(len, 30u);
+	for (; len > 0; len--)
+		hash = (hash * 13 + toupper(*name++)) & 0x7ff;
+
+	return hash % AFFS_SB->s_hashsize;
+}
+
+static struct buffer_head *
+affs_find_entry(struct inode *dir, struct dentry *dentry)
+{
+	struct super_block *sb = dir->i_sb;
+	struct buffer_head *bh;
+	toupper_t toupper = affs_get_toupper(sb);
+	u32 key;
+
+	pr_debug("AFFS: find_entry(\"%.*s\")\n", (int)dentry->d_name.len, dentry->d_name.name);
+
+	bh = affs_bread(sb, dir->i_ino);
+	if (!bh)
+		return ERR_PTR(-EIO);
+
+	key = be32_to_cpu(AFFS_HEAD(bh)->table[affs_hash_name(sb, dentry->d_name.name, dentry->d_name.len)]);
+
+	for (;;) {
+		affs_brelse(bh);
+		if (key == 0)
+			return NULL;
+		bh = affs_bread(sb, key);
+		if (!bh)
+			return ERR_PTR(-EIO);
+		if (affs_match(dentry, AFFS_TAIL(sb, bh)->name, toupper))
+			return bh;
+		key = be32_to_cpu(AFFS_TAIL(sb, bh)->hash_chain);
+	}
+}
+
+struct dentry *
+affs_lookup(struct inode *dir, struct dentry *dentry)
+{
+	struct super_block *sb = dir->i_sb;
+	struct buffer_head *bh;
+	struct inode *inode = NULL;
+
+	pr_debug("AFFS: lookup(\"%.*s\")\n",(int)dentry->d_name.len,dentry->d_name.name);
+
+	affs_lock_dir(dir);
+	bh = affs_find_entry(dir, dentry);
+	affs_unlock_dir(dir);
+	if (IS_ERR(bh))
+		return ERR_PTR(PTR_ERR(bh));
+	if (bh) {
+		u32 ino = bh->b_blocknr;
+
+		/* store the real header ino in d_fsdata for faster lookups */
+		dentry->d_fsdata = (void *)(long)ino;
+		switch (be32_to_cpu(AFFS_TAIL(sb, bh)->stype)) {
+		//link to dirs disabled
+		//case ST_LINKDIR:
+		case ST_LINKFILE:
+			ino = be32_to_cpu(AFFS_TAIL(sb, bh)->original);
+		}
+		affs_brelse(bh);
+		inode = iget(sb, ino);
+		if (!inode)
+			return ERR_PTR(-EACCES);
+	}
+	dentry->d_op = AFFS_SB->s_flags & SF_INTL ? &affs_intl_dentry_operations : &affs_dentry_operations;
+	d_add(dentry, inode);
+	return NULL;
+}
+
+int
+affs_unlink(struct inode *dir, struct dentry *dentry)
+{
+	pr_debug("AFFS: unlink(dir=%d, \"%.*s\")\n", (u32)dir->i_ino,
+		 (int)dentry->d_name.len, dentry->d_name.name);
+
+	if (!dentry->d_inode)
+		return -ENOENT;
+
+	return affs_remove_header(dentry);
+}
+
+int
+affs_create(struct inode *dir, struct dentry *dentry, int mode)
+{
+	struct super_block *sb = dir->i_sb;
+	struct inode	*inode;
+	int		 error;
+
+	pr_debug("AFFS: create(%lu,\"%.*s\",0%o)\n",dir->i_ino,(int)dentry->d_name.len,
+		 dentry->d_name.name,mode);
+
+	inode = affs_new_inode(dir);
+	if (!inode)
+		return -ENOSPC;
+
+	inode->i_mode = mode;
+	mode_to_prot(inode);
+	mark_inode_dirty(inode);
+
+	inode->i_op = &affs_file_inode_operations;
+	inode->i_fop = &affs_file_operations;
+	inode->i_mapping->a_ops = (AFFS_SB->s_flags & SF_OFS) ? &affs_aops_ofs : &affs_aops;
+	error = affs_add_entry(dir, inode, dentry, ST_FILE);
+	if (error) {
+		inode->i_nlink = 0;
+		iput(inode);
+		return error;
+	}
+	return 0;
+}
+
+int
+affs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+{
+	struct inode		*inode;
+	int			 error;
+
+	pr_debug("AFFS: mkdir(%lu,\"%.*s\",0%o)\n",dir->i_ino,
+		 (int)dentry->d_name.len,dentry->d_name.name,mode);
+
+	inode = affs_new_inode(dir);
+	if (!inode)
+		return -ENOSPC;
+
+	inode->i_mode = S_IFDIR | mode;
+	mode_to_prot(inode);
+
+	inode->i_op = &affs_dir_inode_operations;
+	inode->i_fop = &affs_dir_operations;
+
+	error = affs_add_entry(dir, inode, dentry, ST_USERDIR);
+	if (error) {
+		inode->i_nlink = 0;
+		mark_inode_dirty(inode);
+		iput(inode);
+		return error;
+	}
+	return 0;
+}
+
+int
+affs_rmdir(struct inode *dir, struct dentry *dentry)
+{
+	pr_debug("AFFS: rmdir(dir=%u, \"%.*s\")\n", (u32)dir->i_ino,
+		 (int)dentry->d_name.len, dentry->d_name.name);
+
+	if (!dentry->d_inode)
+		return -ENOENT;
+
+	return affs_remove_header(dentry);
+}
+
+int
+affs_symlink(struct inode *dir, struct dentry *dentry, const char *symname)
+{
+	struct super_block	*sb = dir->i_sb;
+	struct buffer_head	*bh;
+	struct inode		*inode;
+	char			*p;
+	int			 i, maxlen, error;
+	char			 c, lc;
+
+	pr_debug("AFFS: symlink(%lu,\"%.*s\" -> \"%s\")\n",dir->i_ino,
+		 (int)dentry->d_name.len,dentry->d_name.name,symname);
+
+	maxlen = AFFS_SB->s_hashsize * sizeof(u32) - 1;
+	error = -ENOSPC;
+	inode  = affs_new_inode(dir);
+	if (!inode)
+		return -ENOSPC;
+
+	inode->i_op = &affs_symlink_inode_operations;
+	inode->i_data.a_ops = &affs_symlink_aops;
+	inode->i_mode = S_IFLNK | 0777;
+	mode_to_prot(inode);
+
+	error = -EIO;
+	bh = affs_bread(sb, inode->i_ino);
+	if (!bh)
+		goto err;
+	i  = 0;
+	p  = (char *)AFFS_HEAD(bh)->table;
+	lc = '/';
+	if (*symname == '/') {
+		while (*symname == '/')
+			symname++;
+		while (AFFS_SB->s_volume[i])	/* Cannot overflow */
+			*p++ = AFFS_SB->s_volume[i++];
+	}
+	while (i < maxlen && (c = *symname++)) {
+		if (c == '.' && lc == '/' && *symname == '.' && symname[1] == '/') {
+			*p++ = '/';
+			i++;
+			symname += 2;
+			lc = '/';
+		} else if (c == '.' && lc == '/' && *symname == '/') {
+			symname++;
+			lc = '/';
+		} else {
+			*p++ = c;
+			lc   = c;
+			i++;
+		}
+		if (lc == '/')
+			while (*symname == '/')
+				symname++;
+	}
+	*p = 0;
+	mark_buffer_dirty_inode(bh, inode);
+	affs_brelse(bh);
+	mark_inode_dirty(inode);
+
+	error = affs_add_entry(dir, inode, dentry, ST_SOFTLINK);
+	if (error)
+		goto err;
+
+	return 0;
+
+err:
+	inode->i_nlink = 0;
+	mark_inode_dirty(inode);
+	iput(inode);
+	return error;
+}
+
+int
+affs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
+{
+	struct inode *inode = old_dentry->d_inode;
+	int error;
+
+	pr_debug("AFFS: link(%u, %u, \"%.*s\")\n", (u32)inode->i_ino, (u32)dir->i_ino,
+		 (int)dentry->d_name.len,dentry->d_name.name);
+
+	if (S_ISDIR(inode->i_mode))
+		return -EPERM;
+
+	error = affs_add_entry(dir, inode, dentry, S_ISDIR(inode->i_mode) ? ST_LINKDIR : ST_LINKFILE);
+	if (error) {
+		inode->i_nlink = 0;
+		mark_inode_dirty(inode);
+		iput(inode);
+		return error;
+	}
+	return 0;
+}
+
+int
+affs_rename(struct inode *old_dir, struct dentry *old_dentry,
+	    struct inode *new_dir, struct dentry *new_dentry)
+{
+	struct super_block *sb = old_dir->i_sb;
+	struct buffer_head *bh = NULL;
+	int retval;
+
+	pr_debug("AFFS: rename(old=%u,\"%*s\" to new=%u,\"%*s\")\n",
+		 (u32)old_dir->i_ino, (int)old_dentry->d_name.len, old_dentry->d_name.name,
+		 (u32)new_dir->i_ino, (int)new_dentry->d_name.len, new_dentry->d_name.name);
+
+	if ((retval = affs_check_name(new_dentry->d_name.name,new_dentry->d_name.len)))
+		goto done;
+
+	/* Unlink destination if it already exists */
+	if (new_dentry->d_inode) {
+		retval = affs_remove_header(new_dentry);
+		if (retval)
+			return retval;
+	}
+
+	retval = -EIO;
+	bh = affs_bread(sb, old_dentry->d_inode->i_ino);
+	if (!bh)
+		goto done;
+
+	/* Remove header from its parent directory. */
+	affs_lock_dir(old_dir);
+	retval = affs_remove_hash(old_dir, bh);
+	affs_unlock_dir(old_dir);
+	if (retval)
+		goto done;
+
+	/* And insert it into the new directory with the new name. */
+	affs_copy_name(AFFS_TAIL(sb, bh)->name, new_dentry);
+	affs_fix_checksum(sb, bh);
+	affs_lock_dir(new_dir);
+	retval = affs_insert_hash(new_dir, bh);
+	affs_unlock_dir(new_dir);
+	/* TODO: move it back to old_dir, if error? */
+
+done:
+	mark_buffer_dirty_inode(bh, retval ? old_dir : new_dir);
+	affs_brelse(bh);
+	return retval;
+}
diff --git a/fs/affs/super.c b/fs/affs/super.c
new file mode 100644
index 00000000000000..7c3819530ce668
--- /dev/null
+++ b/fs/affs/super.c
@@ -0,0 +1,509 @@
+/*
+ *  linux/fs/affs/inode.c
+ *
+ *  (c) 1996  Hans-Joachim Widmaier - Rewritten
+ *
+ *  (C) 1993  Ray Burr - Modified for Amiga FFS filesystem.
+ *
+ *  (C) 1992  Eric Youngdale Modified for ISO 9660 filesystem.
+ *
+ *  (C) 1991  Linus Torvalds - minix filesystem
+ */
+
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/slab.h>
+#include <linux/stat.h>
+#include <linux/sched.h>
+#include <linux/affs_fs.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/string.h>
+#include <linux/locks.h>
+#include <linux/genhd.h>
+#include <linux/amigaffs.h>
+#include <linux/major.h>
+#include <linux/blkdev.h>
+#include <linux/init.h>
+#include <asm/system.h>
+#include <asm/uaccess.h>
+
+extern int *blk_size[];
+extern struct timezone sys_tz;
+
+static int affs_statfs(struct super_block *sb, struct statfs *buf);
+static int affs_remount (struct super_block *sb, int *flags, char *data);
+
+static void
+affs_put_super(struct super_block *sb)
+{
+	pr_debug("AFFS: put_super()\n");
+
+	if (!(sb->s_flags & MS_RDONLY)) {
+		AFFS_ROOT_TAIL(sb, AFFS_SB->s_root_bh)->bm_flag = be32_to_cpu(1);
+		secs_to_datestamp(CURRENT_TIME,
+				  &AFFS_ROOT_TAIL(sb, AFFS_SB->s_root_bh)->disk_change);
+		affs_fix_checksum(sb, AFFS_SB->s_root_bh);
+		mark_buffer_dirty(AFFS_SB->s_root_bh);
+	}
+
+	if (AFFS_SB->s_prefix)
+		kfree(AFFS_SB->s_prefix);
+	affs_free_bitmap(sb);
+	affs_brelse(AFFS_SB->s_root_bh);
+
+	return;
+}
+
+static void
+affs_write_super(struct super_block *sb)
+{
+	int clean = 2;
+
+	if (!(sb->s_flags & MS_RDONLY)) {
+		//	if (AFFS_SB->s_bitmap[i].bm_bh) {
+		//		if (buffer_dirty(AFFS_SB->s_bitmap[i].bm_bh)) {
+		//			clean = 0;
+		AFFS_ROOT_TAIL(sb, AFFS_SB->s_root_bh)->bm_flag = be32_to_cpu(clean);
+		secs_to_datestamp(CURRENT_TIME,
+				  &AFFS_ROOT_TAIL(sb, AFFS_SB->s_root_bh)->disk_change);
+		affs_fix_checksum(sb, AFFS_SB->s_root_bh);
+		mark_buffer_dirty(AFFS_SB->s_root_bh);
+		sb->s_dirt = !clean;	/* redo until bitmap synced */
+	} else
+		sb->s_dirt = 0;
+
+	pr_debug("AFFS: write_super() at %lu, clean=%d\n", CURRENT_TIME, clean);
+}
+
+static struct super_operations affs_sops = {
+	read_inode:	affs_read_inode,
+	write_inode:	affs_write_inode,
+	put_inode:	affs_put_inode,
+	delete_inode:	affs_delete_inode,
+	clear_inode:	affs_clear_inode,
+	put_super:	affs_put_super,
+	write_super:	affs_write_super,
+	statfs:		affs_statfs,
+	remount_fs:	affs_remount,
+};
+
+static int
+parse_options(char *options, uid_t *uid, gid_t *gid, int *mode, int *reserved, s32 *root,
+		int *blocksize, char **prefix, char *volume, unsigned long *mount_opts)
+{
+	char	*this_char, *value, *optn;
+	int	 f;
+
+	/* Fill in defaults */
+
+	*uid        = current->uid;
+	*gid        = current->gid;
+	*reserved   = 2;
+	*root       = -1;
+	*blocksize  = -1;
+	volume[0]   = ':';
+	volume[1]   = 0;
+	*mount_opts = 0;
+	if (!options)
+		return 1;
+	for (this_char = strtok(options,","); this_char; this_char = strtok(NULL,",")) {
+		f = 0;
+		if ((value = strchr(this_char,'=')) != NULL)
+			*value++ = 0;
+		if ((optn = "protect") && !strcmp(this_char, optn)) {
+			if (value)
+				goto out_inv_arg;
+			*mount_opts |= SF_IMMUTABLE;
+		} else if ((optn = "verbose") && !strcmp(this_char, optn)) {
+			if (value)
+				goto out_inv_arg;
+			*mount_opts |= SF_VERBOSE;
+		} else if ((optn = "mufs") && !strcmp(this_char, optn)) {
+			if (value)
+				goto out_inv_arg;
+			*mount_opts |= SF_MUFS;
+		} else if ((f = !strcmp(this_char,"setuid")) || !strcmp(this_char,"setgid")) {
+			if (value) {
+				if (!*value) {
+					printk("AFFS: Argument for set[ug]id option missing\n");
+					return 0;
+				} else {
+					*(f ? uid : gid) = simple_strtoul(value,&value,0);
+					if (*value) {
+						printk("AFFS: Bad set[ug]id argument\n");
+						return 0;
+					}
+					*mount_opts |= f ? SF_SETUID : SF_SETGID;
+				}
+			}
+		} else if (!strcmp(this_char,"prefix")) {
+			optn = "prefix";
+			if (!value || !*value)
+				goto out_no_arg;
+			if (*prefix) {		/* Free any previous prefix */
+				kfree(*prefix);
+				*prefix = NULL;
+			}
+			*prefix = kmalloc(strlen(value) + 1,GFP_KERNEL);
+			if (!*prefix)
+				return 0;
+			strcpy(*prefix,value);
+			*mount_opts |= SF_PREFIX;
+		} else if (!strcmp(this_char,"volume")) {
+			optn = "volume";
+			if (!value || !*value)
+				goto out_no_arg;
+			if (strlen(value) > 30)
+				value[30] = 0;
+			strncpy(volume,value,30);
+		} else if (!strcmp(this_char,"mode")) {
+			optn = "mode";
+			if (!value || !*value)
+				goto out_no_arg;
+			*mode = simple_strtoul(value,&value,8) & 0777;
+			if (*value)
+				return 0;
+			*mount_opts |= SF_SETMODE;
+		} else if (!strcmp(this_char,"reserved")) {
+			optn = "reserved";
+			if (!value || !*value)
+				goto out_no_arg;
+			*reserved = simple_strtoul(value,&value,0);
+			if (*value)
+				return 0;
+		} else if (!strcmp(this_char,"root")) {
+			optn = "root";
+			if (!value || !*value)
+				goto out_no_arg;
+			*root = simple_strtoul(value,&value,0);
+			if (*value)
+				return 0;
+		} else if (!strcmp(this_char,"bs")) {
+			optn = "bs";
+			if (!value || !*value)
+				goto out_no_arg;
+			*blocksize = simple_strtoul(value,&value,0);
+			if (*value)
+				return 0;
+			if (*blocksize != 512 && *blocksize != 1024 && *blocksize != 2048
+			    && *blocksize != 4096) {
+				printk ("AFFS: Invalid blocksize (512, 1024, 2048, 4096 allowed)\n");
+				return 0;
+			}
+		} else if (!strcmp (this_char, "grpquota")
+			 || !strcmp (this_char, "noquota")
+			 || !strcmp (this_char, "quota")
+			 || !strcmp (this_char, "usrquota"))
+			 /* Silently ignore the quota options */
+			;
+		else {
+			printk("AFFS: Unrecognized mount option %s\n", this_char);
+			return 0;
+		}
+	}
+	return 1;
+
+out_no_arg:
+	printk("AFFS: The %s option requires an argument\n", optn);
+	return 0;
+out_inv_arg:
+	printk("AFFS: Option %s does not take an argument\n", optn);
+	return 0;
+}
+
+/* This function definitely needs to be split up. Some fine day I'll
+ * hopefully have the guts to do so. Until then: sorry for the mess.
+ */
+
+static struct super_block *
+affs_read_super(struct super_block *sb, void *data, int silent)
+{
+	struct buffer_head	*root_bh = NULL;
+	struct buffer_head	*boot_bh;
+	struct inode		*root_inode = NULL;
+	kdev_t			 dev = sb->s_dev;
+	s32			 root_block;
+	int			 blocks, size, blocksize;
+	u32			 chksum;
+	int			 num_bm;
+	int			 i, j;
+	s32			 key;
+	uid_t			 uid;
+	gid_t			 gid;
+	int			 reserved;
+	unsigned long		 mount_flags;
+	int			 tmp_flags;	/* fix remount prototype... */
+
+	pr_debug("AFFS: read_super(%s)\n",data ? (const char *)data : "no options");
+
+	sb->s_magic             = AFFS_SUPER_MAGIC;
+	sb->s_op                = &affs_sops;
+	memset(AFFS_SB, 0, sizeof(*AFFS_SB));
+	init_MUTEX(&AFFS_SB->s_bmlock);
+
+	if (!parse_options(data,&uid,&gid,&i,&reserved,&root_block,
+				&blocksize,&AFFS_SB->s_prefix,
+				AFFS_SB->s_volume, &mount_flags)) {
+		printk(KERN_ERR "AFFS: Error parsing options\n");
+		return NULL;
+	}
+	/* N.B. after this point s_prefix must be released */
+
+	AFFS_SB->s_flags   = mount_flags;
+	AFFS_SB->s_mode    = i;
+	AFFS_SB->s_uid     = uid;
+	AFFS_SB->s_gid     = gid;
+	AFFS_SB->s_reserved= reserved;
+
+	/* Get the size of the device in 512-byte blocks.
+	 * If we later see that the partition uses bigger
+	 * blocks, we will have to change it.
+	 */
+
+	blocks = blk_size[MAJOR(dev)] ? blk_size[MAJOR(dev)][MINOR(dev)] : 0;
+	if (!blocks) {
+		printk(KERN_ERR "AFFS: Could not determine device size\n");
+		goto out_error;
+	}
+	size = (BLOCK_SIZE / 512) * blocks;
+	pr_debug("AFFS: initial blksize=%d, blocks=%d\n", 512, blocks);
+
+	affs_set_blocksize(sb, PAGE_SIZE);
+	/* Try to find root block. Its location depends on the block size. */
+
+	i = 512;
+	j = 4096;
+	if (blocksize > 0) {
+		i = j = blocksize;
+		size = size / (blocksize / 512);
+	}
+	for (blocksize = i, key = 0; blocksize <= j; blocksize <<= 1, size >>= 1) {
+		AFFS_SB->s_root_block = root_block;
+		if (root_block < 0)
+			AFFS_SB->s_root_block = (reserved + size - 1) / 2;
+		pr_debug("AFFS: setting blocksize to %d\n", blocksize);
+		affs_set_blocksize(sb, blocksize);
+		AFFS_SB->s_partition_size = size;
+
+		/* The root block location that was calculated above is not
+		 * correct if the partition size is an odd number of 512-
+		 * byte blocks, which will be rounded down to a number of
+		 * 1024-byte blocks, and if there were an even number of
+		 * reserved blocks. Ideally, all partition checkers should
+		 * report the real number of blocks of the real blocksize,
+		 * but since this just cannot be done, we have to try to
+		 * find the root block anyways. In the above case, it is one
+		 * block behind the calculated one. So we check this one, too.
+		 */
+		for (num_bm = 0; num_bm < 2; num_bm++) {
+			pr_debug("AFFS: Dev %s, trying root=%u, bs=%d, "
+				"size=%d, reserved=%d\n",
+				kdevname(dev),
+				AFFS_SB->s_root_block + num_bm,
+				blocksize, size, reserved);
+			root_bh = affs_bread(sb, AFFS_SB->s_root_block + num_bm);
+			if (!root_bh)
+				continue;
+			if (!affs_checksum_block(sb, root_bh) &&
+			    be32_to_cpu(AFFS_ROOT_HEAD(root_bh)->ptype) == T_SHORT &&
+			    be32_to_cpu(AFFS_ROOT_TAIL(sb, root_bh)->stype) == ST_ROOT) {
+				AFFS_SB->s_hashsize    = blocksize / 4 - 56;
+				AFFS_SB->s_root_block += num_bm;
+				key                        = 1;
+				goto got_root;
+			}
+			affs_brelse(root_bh);
+			root_bh = NULL;
+		}
+	}
+	if (!silent)
+		printk(KERN_ERR "AFFS: No valid root block on device %s\n",
+			kdevname(dev));
+	goto out_error;
+
+	/* N.B. after this point bh must be released */
+got_root:
+	root_block = AFFS_SB->s_root_block;
+
+	sb->s_blocksize_bits = blocksize == 512 ? 9 :
+			       blocksize == 1024 ? 10 :
+			       blocksize == 2048 ? 11 : 12;
+
+	/* Find out which kind of FS we have */
+	boot_bh = sb_bread(sb, 0);
+	if (!boot_bh) {
+		printk(KERN_ERR "AFFS: Cannot read boot block\n");
+		goto out_error;
+	}
+	chksum = be32_to_cpu(*(u32 *)boot_bh->b_data);
+	brelse(boot_bh);
+
+	/* Dircache filesystems are compatible with non-dircache ones
+	 * when reading. As long as they aren't supported, writing is
+	 * not recommended.
+	 */
+	if ((chksum == FS_DCFFS || chksum == MUFS_DCFFS || chksum == FS_DCOFS
+	     || chksum == MUFS_DCOFS) && !(sb->s_flags & MS_RDONLY)) {
+		printk(KERN_NOTICE "AFFS: Dircache FS - mounting %s read only\n",
+			kdevname(dev));
+		sb->s_flags |= MS_RDONLY;
+	}
+	switch (chksum) {
+		case MUFS_FS:
+		case MUFS_INTLFFS:
+		case MUFS_DCFFS:
+			AFFS_SB->s_flags |= SF_MUFS;
+			/* fall thru */
+		case FS_INTLFFS:
+		case FS_DCFFS:
+			AFFS_SB->s_flags |= SF_INTL;
+			break;
+		case MUFS_FFS:
+			AFFS_SB->s_flags |= SF_MUFS;
+			break;
+		case FS_FFS:
+			break;
+		case MUFS_OFS:
+			AFFS_SB->s_flags |= SF_MUFS;
+			/* fall thru */
+		case FS_OFS:
+			AFFS_SB->s_flags |= SF_OFS;
+			sb->s_flags |= MS_NOEXEC;
+			break;
+		case MUFS_DCOFS:
+		case MUFS_INTLOFS:
+			AFFS_SB->s_flags |= SF_MUFS;
+		case FS_DCOFS:
+		case FS_INTLOFS:
+			AFFS_SB->s_flags |= SF_INTL | SF_OFS;
+			sb->s_flags |= MS_NOEXEC;
+			break;
+		default:
+			printk(KERN_ERR "AFFS: Unknown filesystem on device %s: %08X\n",
+				kdevname(dev), chksum);
+			goto out_error;
+	}
+
+	if (mount_flags & SF_VERBOSE) {
+		chksum = cpu_to_be32(chksum);
+		printk(KERN_NOTICE "AFFS: Mounting volume \"%*s\": Type=%.3s\\%c, Blocksize=%d\n",
+			AFFS_ROOT_TAIL(sb, root_bh)->disk_name[0],
+			AFFS_ROOT_TAIL(sb, root_bh)->disk_name + 1,
+			(char *)&chksum,((char *)&chksum)[3] + '0',blocksize);
+	}
+
+	sb->s_flags |= MS_NODEV | MS_NOSUID;
+
+	AFFS_SB->s_data_blksize = sb->s_blocksize;
+	if (AFFS_SB->s_flags & SF_OFS)
+		AFFS_SB->s_data_blksize -= 24;
+
+	/* Keep super block in cache */
+	AFFS_SB->s_root_bh = root_bh;
+	/* N.B. after this point s_root_bh must be released */
+
+	tmp_flags = sb->s_flags;
+	if (affs_init_bitmap(sb, &tmp_flags))
+		goto out_error;
+	sb->s_flags = tmp_flags;
+
+	/* set up enough so that it can read an inode */
+
+	root_inode = iget(sb, root_block);
+	sb->s_root = d_alloc_root(root_inode);
+	if (!sb->s_root) {
+		printk(KERN_ERR "AFFS: Get root inode failed\n");
+		goto out_error;
+	}
+	sb->s_root->d_op = &affs_dentry_operations;
+
+	pr_debug("AFFS: s_flags=%lX\n",sb->s_flags);
+	return sb;
+
+	/*
+	 * Begin the cascaded cleanup ...
+	 */
+out_error:
+	if (root_inode)
+		iput(root_inode);
+	if (AFFS_SB->s_bitmap)
+		kfree(AFFS_SB->s_bitmap);
+	affs_brelse(root_bh);
+	if (AFFS_SB->s_prefix)
+		kfree(AFFS_SB->s_prefix);
+	return NULL;
+}
+
+static int
+affs_remount(struct super_block *sb, int *flags, char *data)
+{
+	int			 blocksize;
+	uid_t			 uid;
+	gid_t			 gid;
+	int			 mode;
+	int			 reserved;
+	int			 root_block;
+	unsigned long		 mount_flags;
+	int			 res = 0;
+
+	pr_debug("AFFS: remount(flags=0x%x,opts=\"%s\")\n",*flags,data);
+
+	if (!parse_options(data,&uid,&gid,&mode,&reserved,&root_block,
+	    &blocksize,&AFFS_SB->s_prefix,AFFS_SB->s_volume,&mount_flags))
+		return -EINVAL;
+	AFFS_SB->s_flags = mount_flags;
+	AFFS_SB->s_mode  = mode;
+	AFFS_SB->s_uid   = uid;
+	AFFS_SB->s_gid   = gid;
+
+	if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
+		return 0;
+	if (*flags & MS_RDONLY) {
+		sb->s_dirt = 1;
+		while (sb->s_dirt)
+			affs_write_super(sb);
+		affs_free_bitmap(sb);
+	} else
+		res = affs_init_bitmap(sb, flags);
+
+	return res;
+}
+
+static int
+affs_statfs(struct super_block *sb, struct statfs *buf)
+{
+	int		 free;
+
+	pr_debug("AFFS: statfs() partsize=%d, reserved=%d\n",AFFS_SB->s_partition_size,
+	     AFFS_SB->s_reserved);
+
+	free          = affs_count_free_blocks(sb);
+	buf->f_type    = AFFS_SUPER_MAGIC;
+	buf->f_bsize   = sb->s_blocksize;
+	buf->f_blocks  = AFFS_SB->s_partition_size - AFFS_SB->s_reserved;
+	buf->f_bfree   = free;
+	buf->f_bavail  = free;
+	return 0;
+}
+
+static DECLARE_FSTYPE_DEV(affs_fs_type, "affs", affs_read_super);
+
+static int __init init_affs_fs(void)
+{
+	return register_filesystem(&affs_fs_type);
+}
+
+static void __exit exit_affs_fs(void)
+{
+	unregister_filesystem(&affs_fs_type);
+}
+
+EXPORT_NO_SYMBOLS;
+
+MODULE_DESCRIPTION("Amiga filesystem support for Linux");
+MODULE_LICENSE("GPL");
+
+module_init(init_affs_fs)
+module_exit(exit_affs_fs)
diff --git a/fs/affs/symlink.c b/fs/affs/symlink.c
new file mode 100644
index 00000000000000..f8eedba6fdd393
--- /dev/null
+++ b/fs/affs/symlink.c
@@ -0,0 +1,87 @@
+/*
+ *  linux/fs/affs/symlink.c
+ *
+ *  1995  Hans-Joachim Widmaier - Modified for affs.
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  affs symlink handling code
+ */
+
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/stat.h>
+#include <linux/affs_fs.h>
+#include <linux/amigaffs.h>
+#include <linux/pagemap.h>
+#include <linux/smp_lock.h>
+
+static int affs_symlink_readpage(struct file *file, struct page *page)
+{
+	struct buffer_head *bh;
+	struct inode *inode = page->mapping->host;
+	char *link = kmap(page);
+	struct slink_front *lf;
+	int err;
+	int			 i, j;
+	char			 c;
+	char			 lc;
+	char			*pf;
+
+	pr_debug("AFFS: follow_link(ino=%lu)\n",inode->i_ino);
+
+	err = -EIO;
+	lock_kernel();
+	bh = affs_bread(inode->i_sb, inode->i_ino);
+	unlock_kernel();
+	if (!bh)
+		goto fail;
+	i  = 0;
+	j  = 0;
+	lf = (struct slink_front *)bh->b_data;
+	lc = 0;
+	pf = inode->i_sb->u.affs_sb.s_prefix ? inode->i_sb->u.affs_sb.s_prefix : "/";
+
+	if (strchr(lf->symname,':')) {	/* Handle assign or volume name */
+		while (i < 1023 && (c = pf[i]))
+			link[i++] = c;
+		while (i < 1023 && lf->symname[j] != ':')
+			link[i++] = lf->symname[j++];
+		if (i < 1023)
+			link[i++] = '/';
+		j++;
+		lc = '/';
+	}
+	while (i < 1023 && (c = lf->symname[j])) {
+		if (c == '/' && lc == '/' && i < 1020) {	/* parent dir */
+			link[i++] = '.';
+			link[i++] = '.';
+		}
+		link[i++] = c;
+		lc = c;
+		j++;
+	}
+	link[i] = '\0';
+	lock_kernel();
+	affs_brelse(bh);
+	unlock_kernel();
+	SetPageUptodate(page);
+	kunmap(page);
+	UnlockPage(page);
+	return 0;
+fail:
+	SetPageError(page);
+	kunmap(page);
+	UnlockPage(page);
+	return err;
+}
+
+struct address_space_operations affs_symlink_aops = {
+	readpage:	affs_symlink_readpage,
+};
+
+struct inode_operations affs_symlink_inode_operations = {
+	readlink:	page_readlink,
+	follow_link:	page_follow_link,
+	setattr:	affs_notify_change,
+};
diff --git a/fs/attr.c b/fs/attr.c
new file mode 100644
index 00000000000000..2c99b510789836
--- /dev/null
+++ b/fs/attr.c
@@ -0,0 +1,151 @@
+/*
+ *  linux/fs/attr.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *  changes by Thomas Schoebel-Theuer
+ */
+
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/string.h>
+#include <linux/smp_lock.h>
+#include <linux/dnotify.h>
+#include <linux/fcntl.h>
+#include <linux/quotaops.h>
+
+/* Taken over from the old code... */
+
+/* POSIX UID/GID verification for setting inode attributes. */
+int inode_change_ok(struct inode *inode, struct iattr *attr)
+{
+	int retval = -EPERM;
+	unsigned int ia_valid = attr->ia_valid;
+
+	/* If force is set do it anyway. */
+	if (ia_valid & ATTR_FORCE)
+		goto fine;
+
+	/* Make sure a caller can chown. */
+	if ((ia_valid & ATTR_UID) &&
+	    (current->fsuid != inode->i_uid ||
+	     attr->ia_uid != inode->i_uid) && !capable(CAP_CHOWN))
+		goto error;
+
+	/* Make sure caller can chgrp. */
+	if ((ia_valid & ATTR_GID) &&
+	    (current->fsuid != inode->i_uid ||
+	    (!in_group_p(attr->ia_gid) && attr->ia_gid != inode->i_gid)) &&
+	    !capable(CAP_CHOWN))
+		goto error;
+
+	/* Make sure a caller can chmod. */
+	if (ia_valid & ATTR_MODE) {
+		if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+			goto error;
+		/* Also check the setgid bit! */
+		if (!in_group_p((ia_valid & ATTR_GID) ? attr->ia_gid :
+				inode->i_gid) && !capable(CAP_FSETID))
+			attr->ia_mode &= ~S_ISGID;
+	}
+
+	/* Check for setting the inode time. */
+	if (ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET)) {
+		if (current->fsuid != inode->i_uid && !capable(CAP_FOWNER))
+			goto error;
+	}
+fine:
+	retval = 0;
+error:
+	return retval;
+}
+
+int inode_setattr(struct inode * inode, struct iattr * attr)
+{
+	unsigned int ia_valid = attr->ia_valid;
+	int error = 0;
+
+	if (ia_valid & ATTR_SIZE) {
+		error = vmtruncate(inode, attr->ia_size);
+		if (error)
+			goto out;
+	}
+
+	if (ia_valid & ATTR_UID)
+		inode->i_uid = attr->ia_uid;
+	if (ia_valid & ATTR_GID)
+		inode->i_gid = attr->ia_gid;
+	if (ia_valid & ATTR_ATIME)
+		inode->i_atime = attr->ia_atime;
+	if (ia_valid & ATTR_MTIME)
+		inode->i_mtime = attr->ia_mtime;
+	if (ia_valid & ATTR_CTIME)
+		inode->i_ctime = attr->ia_ctime;
+	if (ia_valid & ATTR_MODE) {
+		inode->i_mode = attr->ia_mode;
+		if (!in_group_p(inode->i_gid) && !capable(CAP_FSETID))
+			inode->i_mode &= ~S_ISGID;
+	}
+	mark_inode_dirty(inode);
+out:
+	return error;
+}
+
+static int setattr_mask(unsigned int ia_valid)
+{
+	unsigned long dn_mask = 0;
+
+	if (ia_valid & ATTR_UID)
+		dn_mask |= DN_ATTRIB;
+	if (ia_valid & ATTR_GID)
+		dn_mask |= DN_ATTRIB;
+	if (ia_valid & ATTR_SIZE)
+		dn_mask |= DN_MODIFY;
+	/* both times implies a utime(s) call */
+	if ((ia_valid & (ATTR_ATIME|ATTR_MTIME)) == (ATTR_ATIME|ATTR_MTIME))
+		dn_mask |= DN_ATTRIB;
+	else if (ia_valid & ATTR_ATIME)
+		dn_mask |= DN_ACCESS;
+	else if (ia_valid & ATTR_MTIME)
+		dn_mask |= DN_MODIFY;
+	if (ia_valid & ATTR_MODE)
+		dn_mask |= DN_ATTRIB;
+	return dn_mask;
+}
+
+int notify_change(struct dentry * dentry, struct iattr * attr)
+{
+	struct inode *inode = dentry->d_inode;
+	int error;
+	time_t now = CURRENT_TIME;
+	unsigned int ia_valid = attr->ia_valid;
+
+	if (!inode)
+		BUG();
+
+	attr->ia_ctime = now;
+	if (!(ia_valid & ATTR_ATIME_SET))
+		attr->ia_atime = now;
+	if (!(ia_valid & ATTR_MTIME_SET))
+		attr->ia_mtime = now;
+
+	lock_kernel();
+	if (inode->i_op && inode->i_op->setattr) 
+		error = inode->i_op->setattr(dentry, attr);
+	else {
+		error = inode_change_ok(inode, attr);
+		if (!error) {
+			if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
+			    (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid))
+				error = DQUOT_TRANSFER(inode, attr) ? -EDQUOT : 0;
+			if (!error)
+				error = inode_setattr(inode, attr);
+		}
+	}
+	unlock_kernel();
+	if (!error) {
+		unsigned long dn_mask = setattr_mask(ia_valid);
+		if (dn_mask)
+			dnotify_parent(dentry, dn_mask);
+	}
+	return error;
+}
diff --git a/fs/autofs/Makefile b/fs/autofs/Makefile
new file mode 100644
index 00000000000000..5c8dbcfe38a03f
--- /dev/null
+++ b/fs/autofs/Makefile
@@ -0,0 +1,12 @@
+#
+# Makefile for the linux autofs-filesystem routines.
+#
+# We can build this either out of the kernel tree or the autofs tools tree.
+#
+
+O_TARGET := autofs.o
+
+obj-y   := dir.o dirhash.o init.o inode.o root.o symlink.o waitq.o
+obj-m   := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/autofs/autofs_i.h b/fs/autofs/autofs_i.h
new file mode 100644
index 00000000000000..ccb38459e3530e
--- /dev/null
+++ b/fs/autofs/autofs_i.h
@@ -0,0 +1,159 @@
+/* -*- linux-c -*- ------------------------------------------------------- *
+ *   
+ * linux/fs/autofs/autofs_i.h
+ *
+ *   Copyright 1997-1998 Transmeta Corporation - All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * ----------------------------------------------------------------------- */
+
+/* Internal header file for autofs */
+
+#include <linux/auto_fs.h>
+
+/* This is the range of ioctl() numbers we claim as ours */
+#define AUTOFS_IOC_FIRST     AUTOFS_IOC_READY
+#define AUTOFS_IOC_COUNT     32
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/wait.h>
+#include <asm/uaccess.h>
+
+#ifdef DEBUG
+#define DPRINTK(D) (printk D)
+#else
+#define DPRINTK(D) ((void)0)
+#endif
+
+#define AUTOFS_SUPER_MAGIC 0x0187
+
+/*
+ * If the daemon returns a negative response (AUTOFS_IOC_FAIL) then the
+ * kernel will keep the negative response cached for up to the time given
+ * here, although the time can be shorter if the kernel throws the dcache
+ * entry away.  This probably should be settable from user space.
+ */
+#define AUTOFS_NEGATIVE_TIMEOUT (60*HZ)	/* 1 minute */
+
+/* Structures associated with the root directory hash table */
+
+#define AUTOFS_HASH_SIZE 67
+
+struct autofs_dir_ent {
+	int hash;
+	char *name;
+	int len;
+	ino_t ino;
+	struct dentry *dentry;
+	/* Linked list of entries */
+	struct autofs_dir_ent *next;
+	struct autofs_dir_ent **back;
+	/* The following entries are for the expiry system */
+	unsigned long last_usage;
+	struct list_head exp;
+};
+
+struct autofs_dirhash {
+	struct autofs_dir_ent *h[AUTOFS_HASH_SIZE];
+	struct list_head expiry_head;
+};
+
+struct autofs_wait_queue {
+	wait_queue_head_t queue;
+	struct autofs_wait_queue *next;
+	autofs_wqt_t wait_queue_token;
+	/* We use the following to see what we are waiting for */
+	int hash;
+	int len;
+	char *name;
+	/* This is for status reporting upon return */
+	int status;
+	int wait_ctr;
+};
+
+struct autofs_symlink {
+	char *data;
+	int len;
+	time_t mtime;
+};
+
+#define AUTOFS_MAX_SYMLINKS 256
+
+#define AUTOFS_ROOT_INO      1
+#define AUTOFS_FIRST_SYMLINK 2
+#define AUTOFS_FIRST_DIR_INO (AUTOFS_FIRST_SYMLINK+AUTOFS_MAX_SYMLINKS)
+
+#define AUTOFS_SYMLINK_BITMAP_LEN \
+	((AUTOFS_MAX_SYMLINKS+((sizeof(long)*1)-1))/(sizeof(long)*8))
+
+#define AUTOFS_SBI_MAGIC 0x6d4a556d
+
+struct autofs_sb_info {
+	u32 magic;
+	struct file *pipe;
+	pid_t oz_pgrp;
+	int catatonic;
+	unsigned long exp_timeout;
+	ino_t next_dir_ino;
+	struct autofs_wait_queue *queues; /* Wait queue pointer */
+	struct autofs_dirhash dirhash; /* Root directory hash */
+	struct autofs_symlink symlink[AUTOFS_MAX_SYMLINKS];
+	unsigned long symlink_bitmap[AUTOFS_SYMLINK_BITMAP_LEN];
+};
+
+static inline struct autofs_sb_info *autofs_sbi(struct super_block *sb)
+{
+	return (struct autofs_sb_info *)(sb->u.generic_sbp);
+}
+
+/* autofs_oz_mode(): do we see the man behind the curtain?  (The
+   processes which do manipulations for us in user space sees the raw
+   filesystem without "magic".) */
+
+static inline int autofs_oz_mode(struct autofs_sb_info *sbi) {
+	return sbi->catatonic || current->pgrp == sbi->oz_pgrp;
+}
+
+/* Hash operations */
+
+void autofs_initialize_hash(struct autofs_dirhash *);
+struct autofs_dir_ent *autofs_hash_lookup(const struct autofs_dirhash *,struct qstr *);
+void autofs_hash_insert(struct autofs_dirhash *,struct autofs_dir_ent *);
+void autofs_hash_delete(struct autofs_dir_ent *);
+struct autofs_dir_ent *autofs_hash_enum(const struct autofs_dirhash *,off_t *,struct autofs_dir_ent *);
+void autofs_hash_dputall(struct autofs_dirhash *);
+void autofs_hash_nuke(struct autofs_dirhash *);
+
+/* Expiration-handling functions */
+
+void autofs_update_usage(struct autofs_dirhash *,struct autofs_dir_ent *);
+struct autofs_dir_ent *autofs_expire(struct super_block *,struct autofs_sb_info *, struct vfsmount *mnt);
+
+/* Operations structures */
+
+extern struct inode_operations autofs_root_inode_operations;
+extern struct inode_operations autofs_symlink_inode_operations;
+extern struct inode_operations autofs_dir_inode_operations;
+extern struct file_operations autofs_root_operations;
+
+/* Initializing function */
+
+struct super_block *autofs_read_super(struct super_block *, void *,int);
+
+/* Queue management functions */
+
+int autofs_wait(struct autofs_sb_info *,struct qstr *);
+int autofs_wait_release(struct autofs_sb_info *,autofs_wqt_t,int);
+void autofs_catatonic_mode(struct autofs_sb_info *);
+
+#ifdef DEBUG
+void autofs_say(const char *name, int len);
+#else
+#define autofs_say(n,l) ((void)0)
+#endif
diff --git a/fs/autofs/dir.c b/fs/autofs/dir.c
new file mode 100644
index 00000000000000..a70b71c6e02319
--- /dev/null
+++ b/fs/autofs/dir.c
@@ -0,0 +1,29 @@
+/* -*- linux-c -*- --------------------------------------------------------- *
+ *
+ * linux/fs/autofs/dir.c
+ *
+ *  Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * ------------------------------------------------------------------------- */
+
+#include "autofs_i.h"
+
+/*
+ * No entries except for "." and "..", both of which are handled by the VFS
+ * layer. So all children are negative and dcache-based versions of operations
+ * are OK.
+ */
+static struct dentry *autofs_dir_lookup(struct inode *dir,struct dentry *dentry)
+{
+	d_add(dentry, NULL);
+	return NULL;
+}
+
+struct inode_operations autofs_dir_inode_operations = {
+	lookup:		autofs_dir_lookup,
+};
+
diff --git a/fs/autofs/dirhash.c b/fs/autofs/dirhash.c
new file mode 100644
index 00000000000000..448143fd0796a3
--- /dev/null
+++ b/fs/autofs/dirhash.c
@@ -0,0 +1,249 @@
+/* -*- linux-c -*- --------------------------------------------------------- *
+ *
+ * linux/fs/autofs/dirhash.c
+ *
+ *  Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * ------------------------------------------------------------------------- */
+
+#include "autofs_i.h"
+
+/* Functions for maintenance of expiry queue */
+
+static void autofs_init_usage(struct autofs_dirhash *dh,
+			      struct autofs_dir_ent *ent)
+{
+	list_add_tail(&ent->exp, &dh->expiry_head);
+	ent->last_usage = jiffies;
+}
+
+static void autofs_delete_usage(struct autofs_dir_ent *ent)
+{
+	list_del(&ent->exp);
+}
+
+void autofs_update_usage(struct autofs_dirhash *dh,
+			 struct autofs_dir_ent *ent)
+{
+	autofs_delete_usage(ent);   /* Unlink from current position */
+	autofs_init_usage(dh,ent);  /* Relink at queue tail */
+}
+
+struct autofs_dir_ent *autofs_expire(struct super_block *sb,
+				     struct autofs_sb_info *sbi,
+				     struct vfsmount *mnt)
+{
+	struct autofs_dirhash *dh = &sbi->dirhash;
+	struct autofs_dir_ent *ent;
+	struct dentry *dentry;
+	unsigned long timeout = sbi->exp_timeout;
+
+	while (1) {
+		if ( list_empty(&dh->expiry_head) || sbi->catatonic )
+			return NULL;	/* No entries */
+		/* We keep the list sorted by last_usage and want old stuff */
+		ent = list_entry(dh->expiry_head.next, struct autofs_dir_ent, exp);
+		if (jiffies - ent->last_usage < timeout)
+			break;
+		/* Move to end of list in case expiry isn't desirable */
+		autofs_update_usage(dh, ent);
+
+		/* Check to see that entry is expirable */
+		if ( ent->ino < AUTOFS_FIRST_DIR_INO )
+			return ent; /* Symlinks are always expirable */
+
+		/* Get the dentry for the autofs subdirectory */
+		dentry = ent->dentry;
+
+		if ( !dentry ) {
+			/* Should only happen in catatonic mode */
+			printk("autofs: dentry == NULL but inode range is directory, entry %s\n", ent->name);
+			autofs_delete_usage(ent);
+			continue;
+		}
+
+		if ( !dentry->d_inode ) {
+			dput(dentry);
+			printk("autofs: negative dentry on expiry queue: %s\n",
+			       ent->name);
+			autofs_delete_usage(ent);
+			continue;
+		}
+
+		/* Make sure entry is mounted and unused; note that dentry will
+		   point to the mounted-on-top root. */
+		if (!S_ISDIR(dentry->d_inode->i_mode)||!d_mountpoint(dentry)) {
+			DPRINTK(("autofs: not expirable (not a mounted directory): %s\n", ent->name));
+			continue;
+		}
+		mntget(mnt);
+		dget(dentry);
+		if (!follow_down(&mnt, &dentry)) {
+			dput(dentry);
+			mntput(mnt);
+			DPRINTK(("autofs: not expirable (not a mounted directory): %s\n", ent->name));
+			continue;
+		}
+		while (d_mountpoint(dentry) && follow_down(&mnt, &dentry))
+			;
+		dput(dentry);
+
+		if ( may_umount(mnt) == 0 ) {
+			mntput(mnt);
+			DPRINTK(("autofs: signaling expire on %s\n", ent->name));
+			return ent; /* Expirable! */
+		}
+		DPRINTK(("autofs: didn't expire due to may_umount: %s\n", ent->name));
+		mntput(mnt);
+	}
+	return NULL;		/* No expirable entries */
+}
+
+void autofs_initialize_hash(struct autofs_dirhash *dh) {
+	memset(&dh->h, 0, AUTOFS_HASH_SIZE*sizeof(struct autofs_dir_ent *));
+	INIT_LIST_HEAD(&dh->expiry_head);
+}
+
+struct autofs_dir_ent *autofs_hash_lookup(const struct autofs_dirhash *dh, struct qstr *name)
+{
+	struct autofs_dir_ent *dhn;
+
+	DPRINTK(("autofs_hash_lookup: hash = 0x%08x, name = ", name->hash));
+	autofs_say(name->name,name->len);
+
+	for ( dhn = dh->h[(unsigned) name->hash % AUTOFS_HASH_SIZE] ; dhn ; dhn = dhn->next ) {
+		if ( name->hash == dhn->hash &&
+		     name->len == dhn->len &&
+		     !memcmp(name->name, dhn->name, name->len) )
+			break;
+	}
+
+	return dhn;
+}
+
+void autofs_hash_insert(struct autofs_dirhash *dh, struct autofs_dir_ent *ent)
+{
+	struct autofs_dir_ent **dhnp;
+
+	DPRINTK(("autofs_hash_insert: hash = 0x%08x, name = ", ent->hash));
+	autofs_say(ent->name,ent->len);
+
+	autofs_init_usage(dh,ent);
+	if (ent->dentry)
+		dget(ent->dentry);
+
+	dhnp = &dh->h[(unsigned) ent->hash % AUTOFS_HASH_SIZE];
+	ent->next = *dhnp;
+	ent->back = dhnp;
+	*dhnp = ent;
+	if ( ent->next )
+		ent->next->back = &(ent->next);
+}
+
+void autofs_hash_delete(struct autofs_dir_ent *ent)
+{
+	*(ent->back) = ent->next;
+	if ( ent->next )
+		ent->next->back = ent->back;
+
+	autofs_delete_usage(ent);
+
+	if ( ent->dentry )
+		dput(ent->dentry);
+	kfree(ent->name);
+	kfree(ent);
+}
+
+/*
+ * Used by readdir().  We must validate "ptr", so we can't simply make it
+ * a pointer.  Values below 0xffff are reserved; calling with any value
+ * <= 0x10000 will return the first entry found.
+ *
+ * "last" can be NULL or the value returned by the last search *if* we
+ * want the next sequential entry.
+ */
+struct autofs_dir_ent *autofs_hash_enum(const struct autofs_dirhash *dh,
+					off_t *ptr, struct autofs_dir_ent *last)
+{
+	int bucket, ecount, i;
+	struct autofs_dir_ent *ent;
+
+	bucket = (*ptr >> 16) - 1;
+	ecount = *ptr & 0xffff;
+
+	if ( bucket < 0 ) {
+		bucket = ecount = 0;
+	} 
+
+	DPRINTK(("autofs_hash_enum: bucket %d, entry %d\n", bucket, ecount));
+
+	ent = last ? last->next : NULL;
+
+	if ( ent ) {
+		ecount++;
+	} else {
+		while  ( bucket < AUTOFS_HASH_SIZE ) {
+			ent = dh->h[bucket];
+			for ( i = ecount ; ent && i ; i-- )
+				ent = ent->next;
+			
+			if (ent) {
+				ecount++; /* Point to *next* entry */
+				break;
+			}
+			
+			bucket++; ecount = 0;
+		}
+	}
+
+#ifdef DEBUG
+	if ( !ent )
+		printk("autofs_hash_enum: nothing found\n");
+	else {
+		printk("autofs_hash_enum: found hash %08x, name", ent->hash);
+		autofs_say(ent->name,ent->len);
+	}
+#endif
+
+	*ptr = ((bucket+1) << 16) + ecount;
+	return ent;
+}
+
+/* Iterate over all the ents, and remove all dentry pointers.  Used on
+   entering catatonic mode, in order to make the filesystem unmountable. */
+void autofs_hash_dputall(struct autofs_dirhash *dh)
+{
+	int i;
+	struct autofs_dir_ent *ent;
+
+	for ( i = 0 ; i < AUTOFS_HASH_SIZE ; i++ ) {
+		for ( ent = dh->h[i] ; ent ; ent = ent->next ) {
+			if ( ent->dentry ) {
+				dput(ent->dentry);
+				ent->dentry = NULL;
+			}
+		}
+	}
+}
+
+/* Delete everything.  This is used on filesystem destruction, so we
+   make no attempt to keep the pointers valid */
+void autofs_hash_nuke(struct autofs_dirhash *dh)
+{
+	int i;
+	struct autofs_dir_ent *ent, *nent;
+
+	for ( i = 0 ; i < AUTOFS_HASH_SIZE ; i++ ) {
+		for ( ent = dh->h[i] ; ent ; ent = nent ) {
+			nent = ent->next;
+			if ( ent->dentry )
+				dput(ent->dentry);
+			kfree(ent->name);
+			kfree(ent);
+		}
+	}
+}
diff --git a/fs/autofs/init.c b/fs/autofs/init.c
new file mode 100644
index 00000000000000..0e7fff94f254c8
--- /dev/null
+++ b/fs/autofs/init.c
@@ -0,0 +1,41 @@
+/* -*- linux-c -*- --------------------------------------------------------- *
+ *
+ * linux/fs/autofs/init.c
+ *
+ *  Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * ------------------------------------------------------------------------- */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include "autofs_i.h"
+
+static DECLARE_FSTYPE(autofs_fs_type, "autofs", autofs_read_super, 0);
+
+static int __init init_autofs_fs(void)
+{
+	return register_filesystem(&autofs_fs_type);
+}
+
+static void __exit exit_autofs_fs(void)
+{
+	unregister_filesystem(&autofs_fs_type);
+}
+
+module_init(init_autofs_fs);
+module_exit(exit_autofs_fs);
+
+#ifdef DEBUG
+void autofs_say(const char *name, int len)
+{
+	printk("(%d: ", len);
+	while ( len-- )
+		printk("%c", *name++);
+	printk(")\n");
+}
+#endif
+MODULE_LICENSE("GPL");
diff --git a/fs/autofs/inode.c b/fs/autofs/inode.c
new file mode 100644
index 00000000000000..64218926fe49c3
--- /dev/null
+++ b/fs/autofs/inode.c
@@ -0,0 +1,247 @@
+/* -*- linux-c -*- --------------------------------------------------------- *
+ *
+ * linux/fs/autofs/inode.c
+ *
+ *  Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * ------------------------------------------------------------------------- */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/file.h>
+#include <linux/locks.h>
+#include <asm/bitops.h>
+#include "autofs_i.h"
+#define __NO_VERSION__
+#include <linux/module.h>
+
+static void autofs_put_super(struct super_block *sb)
+{
+	struct autofs_sb_info *sbi = autofs_sbi(sb);
+	unsigned int n;
+
+	if ( !sbi->catatonic )
+		autofs_catatonic_mode(sbi); /* Free wait queues, close pipe */
+
+	autofs_hash_nuke(&sbi->dirhash);
+	for ( n = 0 ; n < AUTOFS_MAX_SYMLINKS ; n++ ) {
+		if ( test_bit(n, sbi->symlink_bitmap) )
+			kfree(sbi->symlink[n].data);
+	}
+
+	kfree(sb->u.generic_sbp);
+
+	DPRINTK(("autofs: shutting down\n"));
+}
+
+static int autofs_statfs(struct super_block *sb, struct statfs *buf);
+static void autofs_read_inode(struct inode *inode);
+
+static struct super_operations autofs_sops = {
+	read_inode:	autofs_read_inode,
+	put_super:	autofs_put_super,
+	statfs:		autofs_statfs,
+};
+
+static int parse_options(char *options, int *pipefd, uid_t *uid, gid_t *gid, pid_t *pgrp, int *minproto, int *maxproto)
+{
+	char *this_char, *value;
+	
+	*uid = current->uid;
+	*gid = current->gid;
+	*pgrp = current->pgrp;
+
+	*minproto = *maxproto = AUTOFS_PROTO_VERSION;
+
+	*pipefd = -1;
+
+	if ( !options ) return 1;
+	for (this_char = strtok(options,","); this_char; this_char = strtok(NULL,",")) {
+		if ((value = strchr(this_char,'=')) != NULL)
+			*value++ = 0;
+		if (!strcmp(this_char,"fd")) {
+			if (!value || !*value)
+				return 1;
+			*pipefd = simple_strtoul(value,&value,0);
+			if (*value)
+				return 1;
+		}
+		else if (!strcmp(this_char,"uid")) {
+			if (!value || !*value)
+				return 1;
+			*uid = simple_strtoul(value,&value,0);
+			if (*value)
+				return 1;
+		}
+		else if (!strcmp(this_char,"gid")) {
+			if (!value || !*value)
+				return 1;
+			*gid = simple_strtoul(value,&value,0);
+			if (*value)
+				return 1;
+		}
+		else if (!strcmp(this_char,"pgrp")) {
+			if (!value || !*value)
+				return 1;
+			*pgrp = simple_strtoul(value,&value,0);
+			if (*value)
+				return 1;
+		}
+		else if (!strcmp(this_char,"minproto")) {
+			if (!value || !*value)
+				return 1;
+			*minproto = simple_strtoul(value,&value,0);
+			if (*value)
+				return 1;
+		}
+		else if (!strcmp(this_char,"maxproto")) {
+			if (!value || !*value)
+				return 1;
+			*maxproto = simple_strtoul(value,&value,0);
+			if (*value)
+				return 1;
+		}
+		else break;
+	}
+	return (*pipefd < 0);
+}
+
+struct super_block *autofs_read_super(struct super_block *s, void *data,
+				      int silent)
+{
+	struct inode * root_inode;
+	struct dentry * root;
+	struct file * pipe;
+	int pipefd;
+	struct autofs_sb_info *sbi;
+	int minproto, maxproto;
+
+	sbi = (struct autofs_sb_info *) kmalloc(sizeof(struct autofs_sb_info), GFP_KERNEL);
+	if ( !sbi )
+		goto fail_unlock;
+	DPRINTK(("autofs: starting up, sbi = %p\n",sbi));
+
+	s->u.generic_sbp = sbi;
+	sbi->magic = AUTOFS_SBI_MAGIC;
+	sbi->catatonic = 0;
+	sbi->exp_timeout = 0;
+	sbi->oz_pgrp = current->pgrp;
+	autofs_initialize_hash(&sbi->dirhash);
+	sbi->queues = NULL;
+	memset(sbi->symlink_bitmap, 0, sizeof(long)*AUTOFS_SYMLINK_BITMAP_LEN);
+	sbi->next_dir_ino = AUTOFS_FIRST_DIR_INO;
+	s->s_blocksize = 1024;
+	s->s_blocksize_bits = 10;
+	s->s_magic = AUTOFS_SUPER_MAGIC;
+	s->s_op = &autofs_sops;
+
+	root_inode = iget(s, AUTOFS_ROOT_INO);
+	root = d_alloc_root(root_inode);
+	pipe = NULL;
+
+	if (!root)
+		goto fail_iput;
+
+	/* Can this call block?  - WTF cares? s is locked. */
+	if ( parse_options(data,&pipefd,&root_inode->i_uid,&root_inode->i_gid,&sbi->oz_pgrp,&minproto,&maxproto) ) {
+		printk("autofs: called with bogus options\n");
+		goto fail_dput;
+	}
+
+	/* Couldn't this be tested earlier? */
+	if ( minproto > AUTOFS_PROTO_VERSION || 
+	     maxproto < AUTOFS_PROTO_VERSION ) {
+		printk("autofs: kernel does not match daemon version\n");
+		goto fail_dput;
+	}
+
+	DPRINTK(("autofs: pipe fd = %d, pgrp = %u\n", pipefd, sbi->oz_pgrp));
+	pipe = fget(pipefd);
+	
+	if ( !pipe ) {
+		printk("autofs: could not open pipe file descriptor\n");
+		goto fail_dput;
+	}
+	if ( !pipe->f_op || !pipe->f_op->write )
+		goto fail_fput;
+	sbi->pipe = pipe;
+
+	/*
+	 * Success! Install the root dentry now to indicate completion.
+	 */
+	s->s_root = root;
+	return s;
+
+fail_fput:
+	printk("autofs: pipe file descriptor does not contain proper ops\n");
+	fput(pipe);
+fail_dput:
+	dput(root);
+	goto fail_free;
+fail_iput:
+	printk("autofs: get root dentry failed\n");
+	iput(root_inode);
+fail_free:
+	kfree(sbi);
+fail_unlock:
+	return NULL;
+}
+
+static int autofs_statfs(struct super_block *sb, struct statfs *buf)
+{
+	buf->f_type = AUTOFS_SUPER_MAGIC;
+	buf->f_bsize = 1024;
+	buf->f_namelen = NAME_MAX;
+	return 0;
+}
+
+static void autofs_read_inode(struct inode *inode)
+{
+	ino_t ino = inode->i_ino;
+	unsigned int n;
+	struct autofs_sb_info *sbi = autofs_sbi(inode->i_sb);
+
+	/* Initialize to the default case (stub directory) */
+
+	inode->i_op = &autofs_dir_inode_operations;
+	inode->i_fop = &dcache_dir_ops;
+	inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO;
+	inode->i_nlink = 2;
+	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+	inode->i_blocks = 0;
+	inode->i_blksize = 1024;
+
+	if ( ino == AUTOFS_ROOT_INO ) {
+		inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO | S_IWUSR;
+		inode->i_op = &autofs_root_inode_operations;
+		inode->i_fop = &autofs_root_operations;
+		inode->i_uid = inode->i_gid = 0; /* Changed in read_super */
+		return;
+	} 
+	
+	inode->i_uid = inode->i_sb->s_root->d_inode->i_uid;
+	inode->i_gid = inode->i_sb->s_root->d_inode->i_gid;
+	
+	if ( ino >= AUTOFS_FIRST_SYMLINK && ino < AUTOFS_FIRST_DIR_INO ) {
+		/* Symlink inode - should be in symlink list */
+		struct autofs_symlink *sl;
+
+		n = ino - AUTOFS_FIRST_SYMLINK;
+		if ( n >= AUTOFS_MAX_SYMLINKS || !test_bit(n,sbi->symlink_bitmap)) {
+			printk("autofs: Looking for bad symlink inode %u\n", (unsigned int) ino);
+			return;
+		}
+		
+		inode->i_op = &autofs_symlink_inode_operations;
+		sl = &sbi->symlink[n];
+		inode->u.generic_ip = sl;
+		inode->i_mode = S_IFLNK | S_IRWXUGO;
+		inode->i_mtime = inode->i_ctime = sl->mtime;
+		inode->i_size = sl->len;
+		inode->i_nlink = 1;
+	}
+}
diff --git a/fs/autofs/root.c b/fs/autofs/root.c
new file mode 100644
index 00000000000000..fe3db57a046e1a
--- /dev/null
+++ b/fs/autofs/root.c
@@ -0,0 +1,509 @@
+/* -*- linux-c -*- --------------------------------------------------------- *
+ *
+ * linux/fs/autofs/root.c
+ *
+ *  Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * ------------------------------------------------------------------------- */
+
+#include <linux/errno.h>
+#include <linux/stat.h>
+#include <linux/param.h>
+#include <linux/sched.h>
+#include <linux/smp_lock.h>
+#include "autofs_i.h"
+
+static int autofs_root_readdir(struct file *,void *,filldir_t);
+static struct dentry *autofs_root_lookup(struct inode *,struct dentry *);
+static int autofs_root_symlink(struct inode *,struct dentry *,const char *);
+static int autofs_root_unlink(struct inode *,struct dentry *);
+static int autofs_root_rmdir(struct inode *,struct dentry *);
+static int autofs_root_mkdir(struct inode *,struct dentry *,int);
+static int autofs_root_ioctl(struct inode *, struct file *,unsigned int,unsigned long);
+
+struct file_operations autofs_root_operations = {
+	read:		generic_read_dir,
+	readdir:	autofs_root_readdir,
+	ioctl:		autofs_root_ioctl,
+};
+
+struct inode_operations autofs_root_inode_operations = {
+        lookup:		autofs_root_lookup,
+        unlink:		autofs_root_unlink,
+        symlink:	autofs_root_symlink,
+        mkdir:		autofs_root_mkdir,
+        rmdir:		autofs_root_rmdir,
+};
+
+static int autofs_root_readdir(struct file *filp, void *dirent, filldir_t filldir)
+{
+	struct autofs_dir_ent *ent = NULL;
+	struct autofs_dirhash *dirhash;
+	struct autofs_sb_info *sbi;
+	struct inode * inode = filp->f_dentry->d_inode;
+	off_t onr, nr;
+
+	sbi = autofs_sbi(inode->i_sb);
+	dirhash = &sbi->dirhash;
+	nr = filp->f_pos;
+
+	switch(nr)
+	{
+	case 0:
+		if (filldir(dirent, ".", 1, nr, inode->i_ino, DT_DIR) < 0)
+			return 0;
+		filp->f_pos = ++nr;
+		/* fall through */
+	case 1:
+		if (filldir(dirent, "..", 2, nr, inode->i_ino, DT_DIR) < 0)
+			return 0;
+		filp->f_pos = ++nr;
+		/* fall through */
+	default:
+		while ( onr = nr, ent = autofs_hash_enum(dirhash,&nr,ent) ) {
+			if ( !ent->dentry || d_mountpoint(ent->dentry) ) {
+				if (filldir(dirent,ent->name,ent->len,onr,ent->ino,DT_UNKNOWN) < 0)
+					return 0;
+				filp->f_pos = nr;
+			}
+		}
+		break;
+	}
+
+	return 0;
+}
+
+static int try_to_fill_dentry(struct dentry *dentry, struct super_block *sb, struct autofs_sb_info *sbi)
+{
+	struct inode * inode;
+	struct autofs_dir_ent *ent;
+	int status = 0;
+
+	if ( !(ent = autofs_hash_lookup(&sbi->dirhash, &dentry->d_name)) ) {
+		do {
+			if ( status && dentry->d_inode ) {
+				if ( status != -ENOENT )
+					printk("autofs warning: lookup failure on positive dentry, status = %d, name = %s\n", status, dentry->d_name.name);
+				return 0; /* Try to get the kernel to invalidate this dentry */
+			}
+
+			/* Turn this into a real negative dentry? */
+			if (status == -ENOENT) {
+				dentry->d_time = jiffies + AUTOFS_NEGATIVE_TIMEOUT;
+				dentry->d_flags &= ~DCACHE_AUTOFS_PENDING;
+				return 1;
+			} else if (status) {
+				/* Return a negative dentry, but leave it "pending" */
+				return 1;
+			}
+			status = autofs_wait(sbi, &dentry->d_name);
+		} while (!(ent = autofs_hash_lookup(&sbi->dirhash, &dentry->d_name)) );
+	}
+
+	/* Abuse this field as a pointer to the directory entry, used to
+	   find the expire list pointers */
+	dentry->d_time = (unsigned long) ent;
+	
+	if (!dentry->d_inode) {
+		inode = iget(sb, ent->ino);
+		if (!inode) {
+			/* Failed, but leave pending for next time */
+			return 1;
+		}
+		dentry->d_inode = inode;
+	}
+
+	/* If this is a directory that isn't a mount point, bitch at the
+	   daemon and fix it in user space */
+	if ( S_ISDIR(dentry->d_inode->i_mode) && !d_mountpoint(dentry) ) {
+		return !autofs_wait(sbi, &dentry->d_name);
+	}
+
+	/* We don't update the usages for the autofs daemon itself, this
+	   is necessary for recursive autofs mounts */
+	if ( !autofs_oz_mode(sbi) ) {
+		autofs_update_usage(&sbi->dirhash,ent);
+	}
+
+	dentry->d_flags &= ~DCACHE_AUTOFS_PENDING;
+	return 1;
+}
+
+
+/*
+ * Revalidate is called on every cache lookup.  Some of those
+ * cache lookups may actually happen while the dentry is not
+ * yet completely filled in, and revalidate has to delay such
+ * lookups..
+ */
+static int autofs_revalidate(struct dentry * dentry, int flags)
+{
+	struct inode * dir;
+	struct autofs_sb_info *sbi;
+	struct autofs_dir_ent *ent;
+	int res;
+
+	lock_kernel();
+	dir = dentry->d_parent->d_inode;
+	sbi = autofs_sbi(dir->i_sb);
+
+	/* Pending dentry */
+	if ( dentry->d_flags & DCACHE_AUTOFS_PENDING ) {
+		if (autofs_oz_mode(sbi))
+			res = 1;
+		else
+			res = try_to_fill_dentry(dentry, dir->i_sb, sbi);
+		unlock_kernel();
+		return res;
+	}
+
+	/* Negative dentry.. invalidate if "old" */
+	if (!dentry->d_inode) {
+		unlock_kernel();
+		return (dentry->d_time - jiffies <= AUTOFS_NEGATIVE_TIMEOUT);
+	}
+		
+	/* Check for a non-mountpoint directory */
+	if ( S_ISDIR(dentry->d_inode->i_mode) && !d_mountpoint(dentry) ) {
+		if (autofs_oz_mode(sbi))
+			res = 1;
+		else
+			res = try_to_fill_dentry(dentry, dir->i_sb, sbi);
+		unlock_kernel();
+		return res;
+	}
+
+	/* Update the usage list */
+	if ( !autofs_oz_mode(sbi) ) {
+		ent = (struct autofs_dir_ent *) dentry->d_time;
+		if ( ent )
+			autofs_update_usage(&sbi->dirhash,ent);
+	}
+	unlock_kernel();
+	return 1;
+}
+
+static struct dentry_operations autofs_dentry_operations = {
+	d_revalidate:	autofs_revalidate,
+};
+
+static struct dentry *autofs_root_lookup(struct inode *dir, struct dentry *dentry)
+{
+	struct autofs_sb_info *sbi;
+	int oz_mode;
+
+	DPRINTK(("autofs_root_lookup: name = "));
+	autofs_say(dentry->d_name.name,dentry->d_name.len);
+
+	if (dentry->d_name.len > NAME_MAX)
+		return ERR_PTR(-ENAMETOOLONG);/* File name too long to exist */
+
+	sbi = autofs_sbi(dir->i_sb);
+
+	oz_mode = autofs_oz_mode(sbi);
+	DPRINTK(("autofs_lookup: pid = %u, pgrp = %u, catatonic = %d, oz_mode = %d\n",
+		 current->pid, current->pgrp, sbi->catatonic, oz_mode));
+
+	/*
+	 * Mark the dentry incomplete, but add it. This is needed so
+	 * that the VFS layer knows about the dentry, and we can count
+	 * on catching any lookups through the revalidate.
+	 *
+	 * Let all the hard work be done by the revalidate function that
+	 * needs to be able to do this anyway..
+	 *
+	 * We need to do this before we release the directory semaphore.
+	 */
+	dentry->d_op = &autofs_dentry_operations;
+	dentry->d_flags |= DCACHE_AUTOFS_PENDING;
+	d_add(dentry, NULL);
+
+	up(&dir->i_sem);
+	autofs_revalidate(dentry, 0);
+	down(&dir->i_sem);
+
+	/*
+	 * If we are still pending, check if we had to handle
+	 * a signal. If so we can force a restart..
+	 */
+	if (dentry->d_flags & DCACHE_AUTOFS_PENDING) {
+		if (signal_pending(current))
+			return ERR_PTR(-ERESTARTNOINTR);
+	}
+
+	/*
+	 * If this dentry is unhashed, then we shouldn't honour this
+	 * lookup even if the dentry is positive.  Returning ENOENT here
+	 * doesn't do the right thing for all system calls, but it should
+	 * be OK for the operations we permit from an autofs.
+	 */
+	if ( dentry->d_inode && d_unhashed(dentry) )
+		return ERR_PTR(-ENOENT);
+
+	return NULL;
+}
+
+static int autofs_root_symlink(struct inode *dir, struct dentry *dentry, const char *symname)
+{
+	struct autofs_sb_info *sbi = autofs_sbi(dir->i_sb);
+	struct autofs_dirhash *dh = &sbi->dirhash;
+	struct autofs_dir_ent *ent;
+	unsigned int n;
+	int slsize;
+	struct autofs_symlink *sl;
+
+	DPRINTK(("autofs_root_symlink: %s <- ", symname));
+	autofs_say(dentry->d_name.name,dentry->d_name.len);
+
+	if ( !autofs_oz_mode(sbi) )
+		return -EACCES;
+
+	if ( autofs_hash_lookup(dh, &dentry->d_name) )
+		return -EEXIST;
+
+	n = find_first_zero_bit(sbi->symlink_bitmap,AUTOFS_MAX_SYMLINKS);
+	if ( n >= AUTOFS_MAX_SYMLINKS )
+		return -ENOSPC;
+
+	set_bit(n,sbi->symlink_bitmap);
+	sl = &sbi->symlink[n];
+	sl->len = strlen(symname);
+	sl->data = kmalloc(slsize = sl->len+1, GFP_KERNEL);
+	if ( !sl->data ) {
+		clear_bit(n,sbi->symlink_bitmap);
+		return -ENOSPC;
+	}
+
+	ent = kmalloc(sizeof(struct autofs_dir_ent), GFP_KERNEL);
+	if ( !ent ) {
+		kfree(sl->data);
+		clear_bit(n,sbi->symlink_bitmap);
+		return -ENOSPC;
+	}
+
+	ent->name = kmalloc(dentry->d_name.len+1, GFP_KERNEL);
+	if ( !ent->name ) {
+		kfree(sl->data);
+		kfree(ent);
+		clear_bit(n,sbi->symlink_bitmap);
+		return -ENOSPC;
+	}
+
+	memcpy(sl->data,symname,slsize);
+	sl->mtime = CURRENT_TIME;
+
+	ent->ino = AUTOFS_FIRST_SYMLINK + n;
+	ent->hash = dentry->d_name.hash;
+	memcpy(ent->name, dentry->d_name.name, 1+(ent->len = dentry->d_name.len));
+	ent->dentry = NULL;	/* We don't keep the dentry for symlinks */
+
+	autofs_hash_insert(dh,ent);
+	d_instantiate(dentry, iget(dir->i_sb,ent->ino));
+
+	return 0;
+}
+
+/*
+ * NOTE!
+ *
+ * Normal filesystems would do a "d_delete()" to tell the VFS dcache
+ * that the file no longer exists. However, doing that means that the
+ * VFS layer can turn the dentry into a negative dentry, which we
+ * obviously do not want (we're dropping the entry not because it
+ * doesn't exist, but because it has timed out).
+ *
+ * Also see autofs_root_rmdir()..
+ */
+static int autofs_root_unlink(struct inode *dir, struct dentry *dentry)
+{
+	struct autofs_sb_info *sbi = autofs_sbi(dir->i_sb);
+	struct autofs_dirhash *dh = &sbi->dirhash;
+	struct autofs_dir_ent *ent;
+	unsigned int n;
+
+	/* This allows root to remove symlinks */
+	if ( !autofs_oz_mode(sbi) && !capable(CAP_SYS_ADMIN) )
+		return -EACCES;
+
+	ent = autofs_hash_lookup(dh, &dentry->d_name);
+	if ( !ent )
+		return -ENOENT;
+
+	n = ent->ino - AUTOFS_FIRST_SYMLINK;
+	if ( n >= AUTOFS_MAX_SYMLINKS )
+		return -EISDIR;	/* It's a directory, dummy */
+	if ( !test_bit(n,sbi->symlink_bitmap) )
+		return -EINVAL;	/* Nonexistent symlink?  Shouldn't happen */
+	
+	dentry->d_time = (unsigned long)(struct autofs_dirhash *)NULL;
+	autofs_hash_delete(ent);
+	clear_bit(n,sbi->symlink_bitmap);
+	kfree(sbi->symlink[n].data);
+	d_drop(dentry);
+	
+	return 0;
+}
+
+static int autofs_root_rmdir(struct inode *dir, struct dentry *dentry)
+{
+	struct autofs_sb_info *sbi = autofs_sbi(dir->i_sb);
+	struct autofs_dirhash *dh = &sbi->dirhash;
+	struct autofs_dir_ent *ent;
+
+	if ( !autofs_oz_mode(sbi) )
+		return -EACCES;
+
+	ent = autofs_hash_lookup(dh, &dentry->d_name);
+	if ( !ent )
+		return -ENOENT;
+
+	if ( (unsigned int)ent->ino < AUTOFS_FIRST_DIR_INO )
+		return -ENOTDIR; /* Not a directory */
+
+	if ( ent->dentry != dentry ) {
+		printk("autofs_rmdir: odentry != dentry for entry %s\n", dentry->d_name.name);
+	}
+
+	dentry->d_time = (unsigned long)(struct autofs_dir_ent *)NULL;
+	autofs_hash_delete(ent);
+	dir->i_nlink--;
+	d_drop(dentry);
+
+	return 0;
+}
+
+static int autofs_root_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+{
+	struct autofs_sb_info *sbi = autofs_sbi(dir->i_sb);
+	struct autofs_dirhash *dh = &sbi->dirhash;
+	struct autofs_dir_ent *ent;
+	ino_t ino;
+
+	if ( !autofs_oz_mode(sbi) )
+		return -EACCES;
+
+	ent = autofs_hash_lookup(dh, &dentry->d_name);
+	if ( ent )
+		return -EEXIST;
+
+	if ( sbi->next_dir_ino < AUTOFS_FIRST_DIR_INO ) {
+		printk("autofs: Out of inode numbers -- what the heck did you do??\n");
+		return -ENOSPC;
+	}
+	ino = sbi->next_dir_ino++;
+
+	ent = kmalloc(sizeof(struct autofs_dir_ent), GFP_KERNEL);
+	if ( !ent )
+		return -ENOSPC;
+
+	ent->name = kmalloc(dentry->d_name.len+1, GFP_KERNEL);
+	if ( !ent->name ) {
+		kfree(ent);
+		return -ENOSPC;
+	}
+
+	ent->hash = dentry->d_name.hash;
+	memcpy(ent->name, dentry->d_name.name, 1+(ent->len = dentry->d_name.len));
+	ent->ino = ino;
+	ent->dentry = dentry;
+	autofs_hash_insert(dh,ent);
+
+	dir->i_nlink++;
+	d_instantiate(dentry, iget(dir->i_sb,ino));
+
+	return 0;
+}
+
+/* Get/set timeout ioctl() operation */
+static inline int autofs_get_set_timeout(struct autofs_sb_info *sbi,
+					 unsigned long *p)
+{
+	unsigned long ntimeout;
+
+	if (get_user(ntimeout, p) ||
+	    put_user(sbi->exp_timeout / HZ, p))
+		return -EFAULT;
+
+	if ( ntimeout > ULONG_MAX/HZ )
+		sbi->exp_timeout = 0;
+	else
+		sbi->exp_timeout = ntimeout * HZ;
+
+	return 0;
+}
+
+/* Return protocol version */
+static inline int autofs_get_protover(int *p)
+{
+	return put_user(AUTOFS_PROTO_VERSION, p);
+}
+
+/* Perform an expiry operation */
+static inline int autofs_expire_run(struct super_block *sb,
+				    struct autofs_sb_info *sbi,
+				    struct vfsmount *mnt,
+				    struct autofs_packet_expire *pkt_p)
+{
+	struct autofs_dir_ent *ent;
+	struct autofs_packet_expire pkt;
+
+	memset(&pkt,0,sizeof pkt);
+
+	pkt.hdr.proto_version = AUTOFS_PROTO_VERSION;
+	pkt.hdr.type = autofs_ptype_expire;
+
+	if ( !sbi->exp_timeout ||
+	     !(ent = autofs_expire(sb,sbi,mnt)) )
+		return -EAGAIN;
+
+	pkt.len = ent->len;
+	memcpy(pkt.name, ent->name, pkt.len);
+	pkt.name[pkt.len] = '\0';
+
+	if ( copy_to_user(pkt_p, &pkt, sizeof(struct autofs_packet_expire)) )
+		return -EFAULT;
+
+	return 0;
+}
+
+/*
+ * ioctl()'s on the root directory is the chief method for the daemon to
+ * generate kernel reactions
+ */
+static int autofs_root_ioctl(struct inode *inode, struct file *filp,
+			     unsigned int cmd, unsigned long arg)
+{
+	struct autofs_sb_info *sbi = autofs_sbi(inode->i_sb);
+
+	DPRINTK(("autofs_ioctl: cmd = 0x%08x, arg = 0x%08lx, sbi = %p, pgrp = %u\n",cmd,arg,sbi,current->pgrp));
+
+	if ( _IOC_TYPE(cmd) != _IOC_TYPE(AUTOFS_IOC_FIRST) ||
+	     _IOC_NR(cmd) - _IOC_NR(AUTOFS_IOC_FIRST) >= AUTOFS_IOC_COUNT )
+		return -ENOTTY;
+	
+	if ( !autofs_oz_mode(sbi) && !capable(CAP_SYS_ADMIN) )
+		return -EPERM;
+	
+	switch(cmd) {
+	case AUTOFS_IOC_READY:	/* Wait queue: go ahead and retry */
+		return autofs_wait_release(sbi,(autofs_wqt_t)arg,0);
+	case AUTOFS_IOC_FAIL:	/* Wait queue: fail with ENOENT */
+		return autofs_wait_release(sbi,(autofs_wqt_t)arg,-ENOENT);
+	case AUTOFS_IOC_CATATONIC: /* Enter catatonic mode (daemon shutdown) */
+		autofs_catatonic_mode(sbi);
+		return 0;
+	case AUTOFS_IOC_PROTOVER: /* Get protocol version */
+		return autofs_get_protover((int *)arg);
+	case AUTOFS_IOC_SETTIMEOUT:
+		return autofs_get_set_timeout(sbi,(unsigned long *)arg);
+	case AUTOFS_IOC_EXPIRE:
+		return autofs_expire_run(inode->i_sb, sbi, filp->f_vfsmnt,
+					 (struct autofs_packet_expire *)arg);
+	default:
+		return -ENOSYS;
+	}
+}
diff --git a/fs/autofs/symlink.c b/fs/autofs/symlink.c
new file mode 100644
index 00000000000000..3b90a077ea02a4
--- /dev/null
+++ b/fs/autofs/symlink.c
@@ -0,0 +1,30 @@
+/* -*- linux-c -*- --------------------------------------------------------- *
+ *
+ * linux/fs/autofs/symlink.c
+ *
+ *  Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * ------------------------------------------------------------------------- */
+
+#include "autofs_i.h"
+
+static int autofs_readlink(struct dentry *dentry, char *buffer, int buflen)
+{
+	char *s=((struct autofs_symlink *)dentry->d_inode->u.generic_ip)->data;
+	return vfs_readlink(dentry, buffer, buflen, s);
+}
+
+static int autofs_follow_link(struct dentry *dentry, struct nameidata *nd)
+{
+	char *s=((struct autofs_symlink *)dentry->d_inode->u.generic_ip)->data;
+	return vfs_follow_link(nd, s);
+}
+
+struct inode_operations autofs_symlink_inode_operations = {
+	readlink:	autofs_readlink,
+	follow_link:	autofs_follow_link
+};
diff --git a/fs/autofs/waitq.c b/fs/autofs/waitq.c
new file mode 100644
index 00000000000000..c7da7f518f059a
--- /dev/null
+++ b/fs/autofs/waitq.c
@@ -0,0 +1,213 @@
+/* -*- linux-c -*- --------------------------------------------------------- *
+ *
+ * linux/fs/autofs/waitq.c
+ *
+ *  Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * ------------------------------------------------------------------------- */
+
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/signal.h>
+#include <linux/file.h>
+#include "autofs_i.h"
+
+/* We make this a static variable rather than a part of the superblock; it
+   is better if we don't reassign numbers easily even across filesystems */
+static autofs_wqt_t autofs_next_wait_queue = 1;
+
+/* These are the signals we allow interrupting a pending mount */
+#define SHUTDOWN_SIGS	(sigmask(SIGKILL) | sigmask(SIGINT) | sigmask(SIGQUIT))
+
+void autofs_catatonic_mode(struct autofs_sb_info *sbi)
+{
+	struct autofs_wait_queue *wq, *nwq;
+
+	DPRINTK(("autofs: entering catatonic mode\n"));
+
+	sbi->catatonic = 1;
+	wq = sbi->queues;
+	sbi->queues = NULL;	/* Erase all wait queues */
+	while ( wq ) {
+		nwq = wq->next;
+		wq->status = -ENOENT; /* Magic is gone - report failure */
+		kfree(wq->name);
+		wq->name = NULL;
+		wake_up(&wq->queue);
+		wq = nwq;
+	}
+	fput(sbi->pipe);	/* Close the pipe */
+	autofs_hash_dputall(&sbi->dirhash); /* Remove all dentry pointers */
+}
+
+static int autofs_write(struct file *file, const void *addr, int bytes)
+{
+	unsigned long sigpipe, flags;
+	mm_segment_t fs;
+	const char *data = (const char *)addr;
+	ssize_t wr = 0;
+
+	/** WARNING: this is not safe for writing more than PIPE_BUF bytes! **/
+
+	sigpipe = sigismember(&current->pending.signal, SIGPIPE);
+
+	/* Save pointer to user space and point back to kernel space */
+	fs = get_fs();
+	set_fs(KERNEL_DS);
+
+	while (bytes &&
+	       (wr = file->f_op->write(file,data,bytes,&file->f_pos)) > 0) {
+		data += wr;
+		bytes -= wr;
+	}
+
+	set_fs(fs);
+
+	/* Keep the currently executing process from receiving a
+	   SIGPIPE unless it was already supposed to get one */
+	if (wr == -EPIPE && !sigpipe) {
+		spin_lock_irqsave(&current->sigmask_lock, flags);
+		sigdelset(&current->pending.signal, SIGPIPE);
+		recalc_sigpending(current);
+		spin_unlock_irqrestore(&current->sigmask_lock, flags);
+	}
+
+	return (bytes > 0);
+}
+	
+static void autofs_notify_daemon(struct autofs_sb_info *sbi, struct autofs_wait_queue *wq)
+{
+	struct autofs_packet_missing pkt;
+
+	DPRINTK(("autofs_wait: wait id = 0x%08lx, name = ", wq->wait_queue_token));
+	autofs_say(wq->name,wq->len);
+
+	memset(&pkt,0,sizeof pkt); /* For security reasons */
+
+	pkt.hdr.proto_version = AUTOFS_PROTO_VERSION;
+	pkt.hdr.type = autofs_ptype_missing;
+	pkt.wait_queue_token = wq->wait_queue_token;
+	pkt.len = wq->len;
+        memcpy(pkt.name, wq->name, pkt.len);
+	pkt.name[pkt.len] = '\0';
+
+	if ( autofs_write(sbi->pipe,&pkt,sizeof(struct autofs_packet_missing)) )
+		autofs_catatonic_mode(sbi);
+}
+
+int autofs_wait(struct autofs_sb_info *sbi, struct qstr *name)
+{
+	struct autofs_wait_queue *wq;
+	int status;
+
+	/* In catatonic mode, we don't wait for nobody */
+	if ( sbi->catatonic )
+		return -ENOENT;
+	
+	/* We shouldn't be able to get here, but just in case */
+	if ( name->len > NAME_MAX )
+		return -ENOENT;
+
+	for ( wq = sbi->queues ; wq ; wq = wq->next ) {
+		if ( wq->hash == name->hash &&
+		     wq->len == name->len &&
+		     wq->name && !memcmp(wq->name,name->name,name->len) )
+			break;
+	}
+	
+	if ( !wq ) {
+		/* Create a new wait queue */
+		wq = kmalloc(sizeof(struct autofs_wait_queue),GFP_KERNEL);
+		if ( !wq )
+			return -ENOMEM;
+
+		wq->name = kmalloc(name->len,GFP_KERNEL);
+		if ( !wq->name ) {
+			kfree(wq);
+			return -ENOMEM;
+		}
+		wq->wait_queue_token = autofs_next_wait_queue++;
+		init_waitqueue_head(&wq->queue);
+		wq->hash = name->hash;
+		wq->len = name->len;
+		wq->status = -EINTR; /* Status return if interrupted */
+		memcpy(wq->name, name->name, name->len);
+		wq->next = sbi->queues;
+		sbi->queues = wq;
+
+		/* autofs_notify_daemon() may block */
+		wq->wait_ctr = 2;
+		autofs_notify_daemon(sbi,wq);
+	} else
+		wq->wait_ctr++;
+
+	/* wq->name is NULL if and only if the lock is already released */
+
+	if ( sbi->catatonic ) {
+		/* We might have slept, so check again for catatonic mode */
+		wq->status = -ENOENT;
+		if ( wq->name ) {
+			kfree(wq->name);
+			wq->name = NULL;
+		}
+	}
+
+	if ( wq->name ) {
+		/* Block all but "shutdown" signals while waiting */
+		sigset_t oldset;
+		unsigned long irqflags;
+
+		spin_lock_irqsave(&current->sigmask_lock, irqflags);
+		oldset = current->blocked;
+		siginitsetinv(&current->blocked, SHUTDOWN_SIGS & ~oldset.sig[0]);
+		recalc_sigpending(current);
+		spin_unlock_irqrestore(&current->sigmask_lock, irqflags);
+
+		interruptible_sleep_on(&wq->queue);
+
+		spin_lock_irqsave(&current->sigmask_lock, irqflags);
+		current->blocked = oldset;
+		recalc_sigpending(current);
+		spin_unlock_irqrestore(&current->sigmask_lock, irqflags);
+	} else {
+		DPRINTK(("autofs_wait: skipped sleeping\n"));
+	}
+
+	status = wq->status;
+
+	if ( ! --wq->wait_ctr )	/* Are we the last process to need status? */
+		kfree(wq);
+
+	return status;
+}
+
+
+int autofs_wait_release(struct autofs_sb_info *sbi, autofs_wqt_t wait_queue_token, int status)
+{
+	struct autofs_wait_queue *wq, **wql;
+
+	for ( wql = &sbi->queues ; (wq = *wql) ; wql = &wq->next ) {
+		if ( wq->wait_queue_token == wait_queue_token )
+			break;
+	}
+	if ( !wq )
+		return -EINVAL;
+
+	*wql = wq->next;	/* Unlink from chain */
+	kfree(wq->name);
+	wq->name = NULL;	/* Do not wait on this queue */
+
+	wq->status = status;
+
+	if ( ! --wq->wait_ctr )	/* Is anyone still waiting for this guy? */
+		kfree(wq);
+	else
+		wake_up(&wq->queue);
+
+	return 0;
+}
+
diff --git a/fs/autofs4/Makefile b/fs/autofs4/Makefile
new file mode 100644
index 00000000000000..1eb09f0bf1b1a4
--- /dev/null
+++ b/fs/autofs4/Makefile
@@ -0,0 +1,13 @@
+#
+# Makefile for the linux autofs-filesystem routines.
+#
+# We can build this either out of the kernel tree or the autofs tools tree.
+#
+
+O_TARGET := autofs4.o
+
+obj-y   := init.o inode.o root.o symlink.o waitq.o expire.o
+
+obj-m   := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h
new file mode 100644
index 00000000000000..18335d427c6a6c
--- /dev/null
+++ b/fs/autofs4/autofs_i.h
@@ -0,0 +1,160 @@
+/* -*- c -*- ------------------------------------------------------------- *
+ *   
+ * linux/fs/autofs/autofs_i.h
+ *
+ *   Copyright 1997-1998 Transmeta Corporation - All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * ----------------------------------------------------------------------- */
+
+/* Internal header file for autofs */
+
+#include <linux/auto_fs4.h>
+#include <linux/list.h>
+
+/* This is the range of ioctl() numbers we claim as ours */
+#define AUTOFS_IOC_FIRST     AUTOFS_IOC_READY
+#define AUTOFS_IOC_COUNT     32
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/wait.h>
+#include <asm/uaccess.h>
+
+/* #define DEBUG */
+
+#ifdef DEBUG
+#define DPRINTK(D) do{ printk("pid %d: ", current->pid); printk D; } while(0)
+#else
+#define DPRINTK(D) do {} while(0)
+#endif
+
+#define AUTOFS_SUPER_MAGIC 0x0187
+
+/*
+ * If the daemon returns a negative response (AUTOFS_IOC_FAIL) then the
+ * kernel will keep the negative response cached for up to the time given
+ * here, although the time can be shorter if the kernel throws the dcache
+ * entry away.  This probably should be settable from user space.
+ */
+#define AUTOFS_NEGATIVE_TIMEOUT (60*HZ)	/* 1 minute */
+
+/* Unified info structure.  This is pointed to by both the dentry and
+   inode structures.  Each file in the filesystem has an instance of this
+   structure.  It holds a reference to the dentry, so dentries are never
+   flushed while the file exists.  All name lookups are dealt with at the
+   dentry level, although the filesystem can interfere in the validation
+   process.  Readdir is implemented by traversing the dentry lists. */
+struct autofs_info {
+	struct dentry	*dentry;
+	struct inode	*inode;
+
+	int		flags;
+
+	struct autofs_sb_info *sbi;
+	unsigned long last_used;
+
+	mode_t	mode;
+	size_t	size;
+
+	void (*free)(struct autofs_info *);
+	union {
+		const char *symlink;
+	} u;
+};
+
+#define AUTOFS_INF_EXPIRING	(1<<0) /* dentry is in the process of expiring */
+
+struct autofs_wait_queue {
+	wait_queue_head_t queue;
+	struct autofs_wait_queue *next;
+	autofs_wqt_t wait_queue_token;
+	/* We use the following to see what we are waiting for */
+	int hash;
+	int len;
+	char *name;
+	/* This is for status reporting upon return */
+	int status;
+	int wait_ctr;
+};
+
+#define AUTOFS_SBI_MAGIC 0x6d4a556d
+
+struct autofs_sb_info {
+	u32 magic;
+	struct file *pipe;
+	pid_t oz_pgrp;
+	int catatonic;
+	int version;
+	unsigned long exp_timeout;
+	struct super_block *sb;
+	struct autofs_wait_queue *queues; /* Wait queue pointer */
+};
+
+static inline struct autofs_sb_info *autofs4_sbi(struct super_block *sb)
+{
+	return (struct autofs_sb_info *)(sb->u.generic_sbp);
+}
+
+static inline struct autofs_info *autofs4_dentry_ino(struct dentry *dentry)
+{
+	return (struct autofs_info *)(dentry->d_fsdata);
+}
+
+/* autofs4_oz_mode(): do we see the man behind the curtain?  (The
+   processes which do manipulations for us in user space sees the raw
+   filesystem without "magic".) */
+
+static inline int autofs4_oz_mode(struct autofs_sb_info *sbi) {
+	return sbi->catatonic || current->pgrp == sbi->oz_pgrp;
+}
+
+/* Does a dentry have some pending activity? */
+static inline int autofs4_ispending(struct dentry *dentry)
+{
+	struct autofs_info *inf = autofs4_dentry_ino(dentry);
+
+	return (dentry->d_flags & DCACHE_AUTOFS_PENDING) ||
+		(inf != NULL && inf->flags & AUTOFS_INF_EXPIRING);
+}
+
+struct inode *autofs4_get_inode(struct super_block *, struct autofs_info *);
+struct autofs_info *autofs4_init_inf(struct autofs_sb_info *, mode_t mode);
+void autofs4_free_ino(struct autofs_info *);
+
+/* Expiration */
+int is_autofs4_dentry(struct dentry *);
+int autofs4_expire_run(struct super_block *, struct vfsmount *,
+			struct autofs_sb_info *, struct autofs_packet_expire *);
+int autofs4_expire_multi(struct super_block *, struct vfsmount *,
+			struct autofs_sb_info *, int *);
+
+/* Operations structures */
+
+extern struct inode_operations autofs4_symlink_inode_operations;
+extern struct inode_operations autofs4_dir_inode_operations;
+extern struct inode_operations autofs4_root_inode_operations;
+extern struct file_operations autofs4_root_operations;
+
+/* Initializing function */
+
+struct super_block *autofs4_read_super(struct super_block *, void *,int);
+struct autofs_info *autofs4_init_ino(struct autofs_info *, struct autofs_sb_info *sbi, mode_t mode);
+
+/* Queue management functions */
+
+enum autofs_notify
+{
+	NFY_NONE,
+	NFY_MOUNT,
+	NFY_EXPIRE
+};
+
+int autofs4_wait(struct autofs_sb_info *,struct qstr *, enum autofs_notify);
+int autofs4_wait_release(struct autofs_sb_info *,autofs_wqt_t,int);
+void autofs4_catatonic_mode(struct autofs_sb_info *);
diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c
new file mode 100644
index 00000000000000..01f6ad59a5d175
--- /dev/null
+++ b/fs/autofs4/expire.c
@@ -0,0 +1,269 @@
+/* -*- c -*- --------------------------------------------------------------- *
+ *
+ * linux/fs/autofs/expire.c
+ *
+ *  Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
+ *  Copyright 1999-2000 Jeremy Fitzhardinge <jeremy@goop.org>
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * ------------------------------------------------------------------------- */
+
+#include "autofs_i.h"
+
+/*
+ * Determine if a subtree of the namespace is busy.
+ *
+ * mnt is the mount tree under the autofs mountpoint
+ */
+static inline int is_vfsmnt_tree_busy(struct vfsmount *mnt)
+{
+	struct vfsmount *this_parent = mnt;
+	struct list_head *next;
+	int count;
+
+	count = atomic_read(&mnt->mnt_count) - 1;
+
+repeat:
+	next = this_parent->mnt_mounts.next;
+	DPRINTK(("is_vfsmnt_tree_busy: mnt=%p, this_parent=%p, next=%p\n",
+		 mnt, this_parent, next));
+resume:
+	for( ; next != &this_parent->mnt_mounts; next = next->next) {
+		struct vfsmount *p = list_entry(next, struct vfsmount,
+						mnt_child);
+
+		/* -1 for struct vfs_mount's normal count, 
+		   -1 to compensate for child's reference to parent */
+		count += atomic_read(&p->mnt_count) - 1 - 1;
+
+		DPRINTK(("is_vfsmnt_tree_busy: p=%p, count now %d\n",
+			 p, count));
+
+		if (!list_empty(&p->mnt_mounts)) {
+			this_parent = p;
+			goto repeat;
+		}
+		/* root is busy if any leaf is busy */
+		if (atomic_read(&p->mnt_count) > 1)
+			return 1;
+	}
+
+	/* All done at this level ... ascend and resume the search. */
+	if (this_parent != mnt) {
+		next = this_parent->mnt_child.next; 
+		this_parent = this_parent->mnt_parent;
+		goto resume;
+	}
+
+	DPRINTK(("is_vfsmnt_tree_busy: count=%d\n", count));
+	return count != 0; /* remaining users? */
+}
+
+/* Traverse a dentry's list of vfsmounts and return the number of
+   non-busy mounts */
+static int check_vfsmnt(struct vfsmount *mnt, struct dentry *dentry)
+{
+	int ret = dentry->d_mounted;
+	struct vfsmount *vfs = lookup_mnt(mnt, dentry);
+
+	if (vfs && is_vfsmnt_tree_busy(vfs))
+		ret--;
+	DPRINTK(("check_vfsmnt: ret=%d\n", ret));
+	return ret;
+}
+
+/* Check dentry tree for busyness.  If a dentry appears to be busy
+   because it is a mountpoint, check to see if the mounted
+   filesystem is busy. */
+static int is_tree_busy(struct vfsmount *topmnt, struct dentry *top)
+{
+	struct dentry *this_parent;
+	struct list_head *next;
+	int count;
+
+	count = atomic_read(&top->d_count);
+	
+	DPRINTK(("is_tree_busy: top=%p initial count=%d\n", 
+		 top, count));
+	this_parent = top;
+
+	if (is_autofs4_dentry(top)) {
+		count--;
+		DPRINTK(("is_tree_busy: autofs; count=%d\n", count));
+	}
+
+	if (d_mountpoint(top))
+		count -= check_vfsmnt(topmnt, top);
+
+ repeat:
+	next = this_parent->d_subdirs.next;
+ resume:
+	while (next != &this_parent->d_subdirs) {
+		int adj = 0;
+		struct dentry *dentry = list_entry(next, struct dentry,
+						   d_child);
+		next = next->next;
+
+		count += atomic_read(&dentry->d_count) - 1;
+
+		if (d_mountpoint(dentry))
+			adj += check_vfsmnt(topmnt, dentry);
+
+		if (is_autofs4_dentry(dentry)) {
+			adj++;
+			DPRINTK(("is_tree_busy: autofs; adj=%d\n",
+				 adj));
+		}
+
+		count -= adj;
+
+		if (!list_empty(&dentry->d_subdirs)) {
+			this_parent = dentry;
+			goto repeat;
+		}
+
+		if (atomic_read(&dentry->d_count) != adj) {
+			DPRINTK(("is_tree_busy: busy leaf (d_count=%d adj=%d)\n",
+				 atomic_read(&dentry->d_count), adj));
+			return 1;
+		}
+	}
+
+	/* All done at this level ... ascend and resume the search. */
+	if (this_parent != top) {
+		next = this_parent->d_child.next; 
+		this_parent = this_parent->d_parent;
+		goto resume;
+	}
+
+	DPRINTK(("is_tree_busy: count=%d\n", count));
+	return count != 0; /* remaining users? */
+}
+
+/*
+ * Find an eligible tree to time-out
+ * A tree is eligible if :-
+ *  - it is unused by any user process
+ *  - it has been unused for exp_timeout time
+ */
+static struct dentry *autofs4_expire(struct super_block *sb,
+				     struct vfsmount *mnt,
+				     struct autofs_sb_info *sbi,
+				     int do_now)
+{
+	unsigned long now = jiffies;
+	unsigned long timeout;
+	struct dentry *root = sb->s_root;
+	struct list_head *tmp;
+
+	if (!sbi->exp_timeout || !root)
+		return NULL;
+
+	timeout = sbi->exp_timeout;
+
+	spin_lock(&dcache_lock);
+	for(tmp = root->d_subdirs.next;
+	    tmp != &root->d_subdirs; 
+	    tmp = tmp->next) {
+		struct autofs_info *ino;
+		struct dentry *dentry = list_entry(tmp, struct dentry, d_child);
+
+		if (dentry->d_inode == NULL)
+			continue;
+
+		ino = autofs4_dentry_ino(dentry);
+
+		if (ino == NULL) {
+			/* dentry in the process of being deleted */
+			continue;
+		}
+
+		/* No point expiring a pending mount */
+		if (dentry->d_flags & DCACHE_AUTOFS_PENDING)
+			continue;
+
+		if (!do_now) {
+			/* Too young to die */
+			if (time_after(ino->last_used + timeout, now))
+				continue;
+		
+			/* update last_used here :- 
+			   - obviously makes sense if it is in use now
+			   - less obviously, prevents rapid-fire expire
+			     attempts if expire fails the first time */
+			ino->last_used = now;
+		}
+		if (!is_tree_busy(mnt, dentry)) {
+			DPRINTK(("autofs_expire: returning %p %.*s\n",
+				 dentry, (int)dentry->d_name.len, dentry->d_name.name));
+			/* Start from here next time */
+			list_del(&root->d_subdirs);
+			list_add(&root->d_subdirs, &dentry->d_child);
+			dget(dentry);
+			spin_unlock(&dcache_lock);
+
+			return dentry;
+		}
+	}
+	spin_unlock(&dcache_lock);
+
+	return NULL;
+}
+
+/* Perform an expiry operation */
+int autofs4_expire_run(struct super_block *sb,
+		      struct vfsmount *mnt,
+		      struct autofs_sb_info *sbi,
+		      struct autofs_packet_expire *pkt_p)
+{
+	struct autofs_packet_expire pkt;
+	struct dentry *dentry;
+
+	memset(&pkt,0,sizeof pkt);
+
+	pkt.hdr.proto_version = sbi->version;
+	pkt.hdr.type = autofs_ptype_expire;
+
+	if ((dentry = autofs4_expire(sb, mnt, sbi, 0)) == NULL)
+		return -EAGAIN;
+
+	pkt.len = dentry->d_name.len;
+	memcpy(pkt.name, dentry->d_name.name, pkt.len);
+	pkt.name[pkt.len] = '\0';
+	dput(dentry);
+
+	if ( copy_to_user(pkt_p, &pkt, sizeof(struct autofs_packet_expire)) )
+		return -EFAULT;
+
+	return 0;
+}
+
+/* Call repeatedly until it returns -EAGAIN, meaning there's nothing
+   more to be done */
+int autofs4_expire_multi(struct super_block *sb, struct vfsmount *mnt,
+			struct autofs_sb_info *sbi, int *arg)
+{
+	struct dentry *dentry;
+	int ret = -EAGAIN;
+	int do_now = 0;
+
+	if (arg && get_user(do_now, arg))
+		return -EFAULT;
+
+	if ((dentry = autofs4_expire(sb, mnt, sbi, do_now)) != NULL) {
+		struct autofs_info *de_info = autofs4_dentry_ino(dentry);
+
+		/* This is synchronous because it makes the daemon a
+                   little easier */
+		de_info->flags |= AUTOFS_INF_EXPIRING;
+		ret = autofs4_wait(sbi, &dentry->d_name, NFY_EXPIRE);
+		de_info->flags &= ~AUTOFS_INF_EXPIRING;
+		dput(dentry);
+	}
+		
+	return ret;
+}
+
diff --git a/fs/autofs4/init.c b/fs/autofs4/init.c
new file mode 100644
index 00000000000000..dbb3e5385ded0a
--- /dev/null
+++ b/fs/autofs4/init.c
@@ -0,0 +1,31 @@
+/* -*- c -*- --------------------------------------------------------------- *
+ *
+ * linux/fs/autofs/init.c
+ *
+ *  Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * ------------------------------------------------------------------------- */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include "autofs_i.h"
+
+static DECLARE_FSTYPE(autofs_fs_type, "autofs", autofs4_read_super, 0);
+
+static int __init init_autofs4_fs(void)
+{
+	return register_filesystem(&autofs_fs_type);
+}
+
+static void __exit exit_autofs4_fs(void)
+{
+	unregister_filesystem(&autofs_fs_type);
+}
+
+module_init(init_autofs4_fs) 
+module_exit(exit_autofs4_fs)
+MODULE_LICENSE("GPL");
diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c
new file mode 100644
index 00000000000000..6a186f654be622
--- /dev/null
+++ b/fs/autofs4/inode.c
@@ -0,0 +1,324 @@
+/* -*- c -*- --------------------------------------------------------------- *
+ *
+ * linux/fs/autofs/inode.c
+ *
+ *  Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * ------------------------------------------------------------------------- */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/file.h>
+#include <linux/locks.h>
+#include <asm/bitops.h>
+#include "autofs_i.h"
+#define __NO_VERSION__
+#include <linux/module.h>
+
+static void ino_lnkfree(struct autofs_info *ino)
+{
+	if (ino->u.symlink) {
+		kfree(ino->u.symlink);
+		ino->u.symlink = NULL;
+	}
+}
+
+struct autofs_info *autofs4_init_ino(struct autofs_info *ino,
+				     struct autofs_sb_info *sbi, mode_t mode)
+{
+	int reinit = 1;
+
+	if (ino == NULL) {
+		reinit = 0;
+		ino = kmalloc(sizeof(*ino), GFP_KERNEL);
+	}
+
+	if (ino == NULL)
+		return NULL;
+
+	ino->flags = 0;
+	ino->mode = mode;
+	ino->inode = NULL;
+	ino->dentry = NULL;
+	ino->size = 0;
+
+	ino->last_used = jiffies;
+
+	ino->sbi = sbi;
+
+	if (reinit && ino->free)
+		(ino->free)(ino);
+
+	memset(&ino->u, 0, sizeof(ino->u));
+
+	ino->free = NULL;
+
+	if (S_ISLNK(mode))
+		ino->free = ino_lnkfree;
+
+	return ino;
+}
+
+void autofs4_free_ino(struct autofs_info *ino)
+{
+	if (ino->dentry) {
+		ino->dentry->d_fsdata = NULL;
+		if (ino->dentry->d_inode)
+			dput(ino->dentry);
+		ino->dentry = NULL;
+	}
+	if (ino->free)
+		(ino->free)(ino);
+	kfree(ino);
+}
+
+static void autofs4_put_super(struct super_block *sb)
+{
+	struct autofs_sb_info *sbi = autofs4_sbi(sb);
+
+	sb->u.generic_sbp = NULL;
+
+	if ( !sbi->catatonic )
+		autofs4_catatonic_mode(sbi); /* Free wait queues, close pipe */
+
+	kfree(sbi);
+
+	DPRINTK(("autofs: shutting down\n"));
+}
+
+static int autofs4_statfs(struct super_block *sb, struct statfs *buf);
+
+static struct super_operations autofs4_sops = {
+	put_super:	autofs4_put_super,
+	statfs:		autofs4_statfs,
+};
+
+static int parse_options(char *options, int *pipefd, uid_t *uid, gid_t *gid,
+			 pid_t *pgrp, int *minproto, int *maxproto)
+{
+	char *this_char, *value;
+	
+	*uid = current->uid;
+	*gid = current->gid;
+	*pgrp = current->pgrp;
+
+	*minproto = AUTOFS_MIN_PROTO_VERSION;
+	*maxproto = AUTOFS_MAX_PROTO_VERSION;
+
+	*pipefd = -1;
+
+	if ( !options ) return 1;
+	for (this_char = strtok(options,","); this_char; this_char = strtok(NULL,",")) {
+		if ((value = strchr(this_char,'=')) != NULL)
+			*value++ = 0;
+		if (!strcmp(this_char,"fd")) {
+			if (!value || !*value)
+				return 1;
+			*pipefd = simple_strtoul(value,&value,0);
+			if (*value)
+				return 1;
+		}
+		else if (!strcmp(this_char,"uid")) {
+			if (!value || !*value)
+				return 1;
+			*uid = simple_strtoul(value,&value,0);
+			if (*value)
+				return 1;
+		}
+		else if (!strcmp(this_char,"gid")) {
+			if (!value || !*value)
+				return 1;
+			*gid = simple_strtoul(value,&value,0);
+			if (*value)
+				return 1;
+		}
+		else if (!strcmp(this_char,"pgrp")) {
+			if (!value || !*value)
+				return 1;
+			*pgrp = simple_strtoul(value,&value,0);
+			if (*value)
+				return 1;
+		}
+		else if (!strcmp(this_char,"minproto")) {
+			if (!value || !*value)
+				return 1;
+			*minproto = simple_strtoul(value,&value,0);
+			if (*value)
+				return 1;
+		}
+		else if (!strcmp(this_char,"maxproto")) {
+			if (!value || !*value)
+				return 1;
+			*maxproto = simple_strtoul(value,&value,0);
+			if (*value)
+				return 1;
+		}
+		else break;
+	}
+	return (*pipefd < 0);
+}
+
+static struct autofs_info *autofs4_mkroot(struct autofs_sb_info *sbi)
+{
+	struct autofs_info *ino;
+
+	ino = autofs4_init_ino(NULL, sbi, S_IFDIR | 0755);
+	if (!ino)
+		return NULL;
+
+	return ino;
+}
+
+struct super_block *autofs4_read_super(struct super_block *s, void *data,
+				      int silent)
+{
+	struct inode * root_inode;
+	struct dentry * root;
+	struct file * pipe;
+	int pipefd;
+	struct autofs_sb_info *sbi;
+	int minproto, maxproto;
+
+	sbi = (struct autofs_sb_info *) kmalloc(sizeof(*sbi), GFP_KERNEL);
+	if ( !sbi )
+		goto fail_unlock;
+	DPRINTK(("autofs: starting up, sbi = %p\n",sbi));
+
+	memset(sbi, 0, sizeof(*sbi));
+
+	s->u.generic_sbp = sbi;
+	sbi->magic = AUTOFS_SBI_MAGIC;
+	sbi->catatonic = 0;
+	sbi->exp_timeout = 0;
+	sbi->oz_pgrp = current->pgrp;
+	sbi->sb = s;
+	sbi->version = 0;
+	sbi->queues = NULL;
+	s->s_blocksize = 1024;
+	s->s_blocksize_bits = 10;
+	s->s_magic = AUTOFS_SUPER_MAGIC;
+	s->s_op = &autofs4_sops;
+
+	/*
+	 * Get the root inode and dentry, but defer checking for errors.
+	 */
+	root_inode = autofs4_get_inode(s, autofs4_mkroot(sbi));
+	root_inode->i_op = &autofs4_root_inode_operations;
+	root_inode->i_fop = &autofs4_root_operations;
+	root = d_alloc_root(root_inode);
+	pipe = NULL;
+
+	if (!root)
+		goto fail_iput;
+
+	/* Can this call block? */
+	if (parse_options(data, &pipefd,
+			  &root_inode->i_uid, &root_inode->i_gid,
+			  &sbi->oz_pgrp,
+			  &minproto, &maxproto)) {
+		printk("autofs: called with bogus options\n");
+		goto fail_dput;
+	}
+
+	/* Couldn't this be tested earlier? */
+	if (maxproto < AUTOFS_MIN_PROTO_VERSION ||
+	    minproto > AUTOFS_MAX_PROTO_VERSION) {
+		printk("autofs: kernel does not match daemon version "
+		       "daemon (%d, %d) kernel (%d, %d)\n",
+			minproto, maxproto,
+			AUTOFS_MIN_PROTO_VERSION, AUTOFS_MAX_PROTO_VERSION);
+		goto fail_dput;
+	}
+
+	sbi->version = maxproto > AUTOFS_MAX_PROTO_VERSION ? AUTOFS_MAX_PROTO_VERSION : maxproto;
+
+	DPRINTK(("autofs: pipe fd = %d, pgrp = %u\n", pipefd, sbi->oz_pgrp));
+	pipe = fget(pipefd);
+	
+	if ( !pipe ) {
+		printk("autofs: could not open pipe file descriptor\n");
+		goto fail_dput;
+	}
+	if ( !pipe->f_op || !pipe->f_op->write )
+		goto fail_fput;
+	sbi->pipe = pipe;
+
+	/*
+	 * Success! Install the root dentry now to indicate completion.
+	 */
+	s->s_root = root;
+	return s;
+	
+	/*
+	 * Failure ... clean up.
+	 */
+fail_fput:
+	printk("autofs: pipe file descriptor does not contain proper ops\n");
+	/*
+	 * fput() can block, so we clear the super block first.
+	 */
+	fput(pipe);
+	/* fall through */
+fail_dput:
+	/*
+	 * dput() can block, so we clear the super block first.
+	 */
+	dput(root);
+	goto fail_free;
+fail_iput:
+	printk("autofs: get root dentry failed\n");
+	/*
+	 * iput() can block, so we clear the super block first.
+	 */
+	iput(root_inode);
+fail_free:
+	kfree(sbi);
+fail_unlock:
+	return NULL;
+}
+
+static int autofs4_statfs(struct super_block *sb, struct statfs *buf)
+{
+	buf->f_type = AUTOFS_SUPER_MAGIC;
+	buf->f_bsize = 1024;
+	buf->f_namelen = NAME_MAX;
+	return 0;
+}
+
+struct inode *autofs4_get_inode(struct super_block *sb,
+				struct autofs_info *inf)
+{
+	struct inode *inode = new_inode(sb);
+
+	if (inode == NULL)
+		return NULL;
+
+	inf->inode = inode;
+	inode->i_mode = inf->mode;
+	if (sb->s_root) {
+		inode->i_uid = sb->s_root->d_inode->i_uid;
+		inode->i_gid = sb->s_root->d_inode->i_gid;
+	} else {
+		inode->i_uid = 0;
+		inode->i_gid = 0;
+	}
+	inode->i_blksize = PAGE_CACHE_SIZE;
+	inode->i_blocks = 0;
+	inode->i_rdev = 0;
+	inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+
+	if (S_ISDIR(inf->mode)) {
+		inode->i_nlink = 2;
+		inode->i_op = &autofs4_dir_inode_operations;
+		inode->i_fop = &dcache_dir_ops;
+	} else if (S_ISLNK(inf->mode)) {
+		inode->i_size = inf->size;
+		inode->i_op = &autofs4_symlink_inode_operations;
+	}
+
+	return inode;
+}
diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
new file mode 100644
index 00000000000000..0658ba68c0886b
--- /dev/null
+++ b/fs/autofs4/root.c
@@ -0,0 +1,532 @@
+/* -*- c -*- --------------------------------------------------------------- *
+ *
+ * linux/fs/autofs/root.c
+ *
+ *  Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
+ *  Copyright 1999-2000 Jeremy Fitzhardinge <jeremy@goop.org>
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * ------------------------------------------------------------------------- */
+
+#include <linux/errno.h>
+#include <linux/stat.h>
+#include <linux/param.h>
+#include <linux/sched.h>
+#include <linux/smp_lock.h>
+#include "autofs_i.h"
+
+static struct dentry *autofs4_dir_lookup(struct inode *,struct dentry *);
+static int autofs4_dir_symlink(struct inode *,struct dentry *,const char *);
+static int autofs4_dir_unlink(struct inode *,struct dentry *);
+static int autofs4_dir_rmdir(struct inode *,struct dentry *);
+static int autofs4_dir_mkdir(struct inode *,struct dentry *,int);
+static int autofs4_root_ioctl(struct inode *, struct file *,unsigned int,unsigned long);
+static struct dentry *autofs4_root_lookup(struct inode *,struct dentry *);
+
+struct file_operations autofs4_root_operations = {
+	open:		dcache_dir_open,
+	release:	dcache_dir_close,
+	llseek:		dcache_dir_lseek,
+	read:		generic_read_dir,
+	readdir:	dcache_readdir,
+	fsync:		dcache_dir_fsync,
+	ioctl:		autofs4_root_ioctl,
+};
+
+struct inode_operations autofs4_root_inode_operations = {
+	lookup:		autofs4_root_lookup,
+	unlink:		autofs4_dir_unlink,
+	symlink:	autofs4_dir_symlink,
+	mkdir:		autofs4_dir_mkdir,
+	rmdir:		autofs4_dir_rmdir,
+};
+
+struct inode_operations autofs4_dir_inode_operations = {
+	lookup:		autofs4_dir_lookup,
+	unlink:		autofs4_dir_unlink,
+	symlink:	autofs4_dir_symlink,
+	mkdir:		autofs4_dir_mkdir,
+	rmdir:		autofs4_dir_rmdir,
+};
+
+/* Update usage from here to top of tree, so that scan of
+   top-level directories will give a useful result */
+static void autofs4_update_usage(struct dentry *dentry)
+{
+	struct dentry *top = dentry->d_sb->s_root;
+
+	for(; dentry != top; dentry = dentry->d_parent) {
+		struct autofs_info *ino = autofs4_dentry_ino(dentry);
+
+		if (ino) {
+			update_atime(dentry->d_inode);
+			ino->last_used = jiffies;
+		}
+	}
+}
+
+static int try_to_fill_dentry(struct dentry *dentry, 
+			      struct super_block *sb,
+			      struct autofs_sb_info *sbi)
+{
+	struct autofs_info *de_info = autofs4_dentry_ino(dentry);
+	int status = 0;
+
+	/* Block on any pending expiry here; invalidate the dentry
+           when expiration is done to trigger mount request with a new
+           dentry */
+	if (de_info && (de_info->flags & AUTOFS_INF_EXPIRING)) {
+		DPRINTK(("try_to_fill_entry: waiting for expire %p name=%.*s, flags&PENDING=%s de_info=%p de_info->flags=%x\n",
+			 dentry, dentry->d_name.len, dentry->d_name.name, 
+			 dentry->d_flags & DCACHE_AUTOFS_PENDING?"t":"f",
+			 de_info, de_info?de_info->flags:0));
+		status = autofs4_wait(sbi, &dentry->d_name, NFY_NONE);
+		
+		DPRINTK(("try_to_fill_entry: expire done status=%d\n", status));
+		
+		return 0;
+	}
+
+	DPRINTK(("try_to_fill_entry: dentry=%p %.*s ino=%p\n", 
+		 dentry, dentry->d_name.len, dentry->d_name.name, dentry->d_inode));
+
+	/* Wait for a pending mount, triggering one if there isn't one already */
+	while(dentry->d_inode == NULL) {
+		DPRINTK(("try_to_fill_entry: waiting for mount name=%.*s, de_info=%p de_info->flags=%x\n",
+			 dentry->d_name.len, dentry->d_name.name, 
+			 de_info, de_info?de_info->flags:0));
+		status = autofs4_wait(sbi, &dentry->d_name, NFY_MOUNT);
+		 
+		DPRINTK(("try_to_fill_entry: mount done status=%d\n", status));
+
+		if (status && dentry->d_inode)
+			return 0; /* Try to get the kernel to invalidate this dentry */
+		
+		/* Turn this into a real negative dentry? */
+		if (status == -ENOENT) {
+			dentry->d_time = jiffies + AUTOFS_NEGATIVE_TIMEOUT;
+			dentry->d_flags &= ~DCACHE_AUTOFS_PENDING;
+			return 1;
+		} else if (status) {
+			/* Return a negative dentry, but leave it "pending" */
+			return 1;
+		}
+	}
+
+	/* If this is an unused directory that isn't a mount point,
+	   bitch at the daemon and fix it in user space */
+	spin_lock(&dcache_lock);
+	if (S_ISDIR(dentry->d_inode->i_mode) &&
+	    !d_mountpoint(dentry) && 
+	    list_empty(&dentry->d_subdirs)) {
+		DPRINTK(("try_to_fill_entry: mounting existing dir\n"));
+		spin_unlock(&dcache_lock);
+		return autofs4_wait(sbi, &dentry->d_name, NFY_MOUNT) == 0;
+	}
+	spin_unlock(&dcache_lock);
+
+	/* We don't update the usages for the autofs daemon itself, this
+	   is necessary for recursive autofs mounts */
+	if (!autofs4_oz_mode(sbi))
+		autofs4_update_usage(dentry);
+
+	dentry->d_flags &= ~DCACHE_AUTOFS_PENDING;
+	return 1;
+}
+
+
+/*
+ * Revalidate is called on every cache lookup.  Some of those
+ * cache lookups may actually happen while the dentry is not
+ * yet completely filled in, and revalidate has to delay such
+ * lookups..
+ */
+static int autofs4_root_revalidate(struct dentry * dentry, int flags)
+{
+	struct inode * dir = dentry->d_parent->d_inode;
+	struct autofs_sb_info *sbi = autofs4_sbi(dir->i_sb);
+	int oz_mode = autofs4_oz_mode(sbi);
+
+	/* Pending dentry */
+	if (autofs4_ispending(dentry)) {
+		if (autofs4_oz_mode(sbi))
+			return 1;
+		else
+			return try_to_fill_dentry(dentry, dir->i_sb, sbi);
+	}
+
+	/* Negative dentry.. invalidate if "old" */
+	if (dentry->d_inode == NULL)
+		return (dentry->d_time - jiffies <= AUTOFS_NEGATIVE_TIMEOUT);
+
+	/* Check for a non-mountpoint directory with no contents */
+	spin_lock(&dcache_lock);
+	if (S_ISDIR(dentry->d_inode->i_mode) &&
+	    !d_mountpoint(dentry) && 
+	    list_empty(&dentry->d_subdirs)) {
+		DPRINTK(("autofs_root_revalidate: dentry=%p %.*s, emptydir\n",
+			 dentry, dentry->d_name.len, dentry->d_name.name));
+		spin_unlock(&dcache_lock);
+		if (oz_mode)
+			return 1;
+		else
+			return try_to_fill_dentry(dentry, dir->i_sb, sbi);
+	}
+	spin_unlock(&dcache_lock);
+
+	/* Update the usage list */
+	if (!oz_mode)
+		autofs4_update_usage(dentry);
+
+	return 1;
+}
+
+static int autofs4_revalidate(struct dentry *dentry, int flags)
+{
+	struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
+
+	if (!autofs4_oz_mode(sbi))
+		autofs4_update_usage(dentry);
+
+	return 1;
+}
+
+static void autofs4_dentry_release(struct dentry *de)
+{
+	struct autofs_info *inf;
+
+	lock_kernel();
+
+	DPRINTK(("autofs4_dentry_release: releasing %p\n", de));
+
+	inf = autofs4_dentry_ino(de);
+	de->d_fsdata = NULL;
+
+	if (inf) {
+		inf->dentry = NULL;
+		inf->inode = NULL;
+
+		autofs4_free_ino(inf);
+	}
+
+	unlock_kernel();
+}
+
+/* For dentries of directories in the root dir */
+static struct dentry_operations autofs4_root_dentry_operations = {
+	d_revalidate:	autofs4_root_revalidate,
+	d_release:	autofs4_dentry_release,
+};
+
+/* For other dentries */
+static struct dentry_operations autofs4_dentry_operations = {
+	d_revalidate:	autofs4_revalidate,
+	d_release:	autofs4_dentry_release,
+};
+
+/* Lookups in non-root dirs never find anything - if it's there, it's
+   already in the dcache */
+static struct dentry *autofs4_dir_lookup(struct inode *dir, struct dentry *dentry)
+{
+#if 0
+	DPRINTK(("autofs_dir_lookup: ignoring lookup of %.*s/%.*s\n",
+		 dentry->d_parent->d_name.len, dentry->d_parent->d_name.name,
+		 dentry->d_name.len, dentry->d_name.name));
+#endif
+
+	dentry->d_fsdata = NULL;
+	d_add(dentry, NULL);
+	return NULL;
+}
+
+/* Lookups in the root directory */
+static struct dentry *autofs4_root_lookup(struct inode *dir, struct dentry *dentry)
+{
+	struct autofs_sb_info *sbi;
+	int oz_mode;
+
+	DPRINTK(("autofs_root_lookup: name = %.*s\n", 
+		 dentry->d_name.len, dentry->d_name.name));
+
+	if (dentry->d_name.len > NAME_MAX)
+		return ERR_PTR(-ENAMETOOLONG);/* File name too long to exist */
+
+	sbi = autofs4_sbi(dir->i_sb);
+
+	oz_mode = autofs4_oz_mode(sbi);
+	DPRINTK(("autofs_lookup: pid = %u, pgrp = %u, catatonic = %d, oz_mode = %d\n",
+		 current->pid, current->pgrp, sbi->catatonic, oz_mode));
+
+	/*
+	 * Mark the dentry incomplete, but add it. This is needed so
+	 * that the VFS layer knows about the dentry, and we can count
+	 * on catching any lookups through the revalidate.
+	 *
+	 * Let all the hard work be done by the revalidate function that
+	 * needs to be able to do this anyway..
+	 *
+	 * We need to do this before we release the directory semaphore.
+	 */
+	dentry->d_op = &autofs4_root_dentry_operations;
+
+	if (!oz_mode)
+		dentry->d_flags |= DCACHE_AUTOFS_PENDING;
+	dentry->d_fsdata = NULL;
+	d_add(dentry, NULL);
+
+	if (dentry->d_op && dentry->d_op->d_revalidate) {
+		up(&dir->i_sem);
+		(dentry->d_op->d_revalidate)(dentry, 0);
+		down(&dir->i_sem);
+	}
+
+	/*
+	 * If we are still pending, check if we had to handle
+	 * a signal. If so we can force a restart..
+	 */
+	if (dentry->d_flags & DCACHE_AUTOFS_PENDING) {
+		if (signal_pending(current))
+			return ERR_PTR(-ERESTARTNOINTR);
+	}
+
+	/*
+	 * If this dentry is unhashed, then we shouldn't honour this
+	 * lookup even if the dentry is positive.  Returning ENOENT here
+	 * doesn't do the right thing for all system calls, but it should
+	 * be OK for the operations we permit from an autofs.
+	 */
+	if ( dentry->d_inode && d_unhashed(dentry) )
+		return ERR_PTR(-ENOENT);
+
+	return NULL;
+}
+
+static int autofs4_dir_symlink(struct inode *dir, 
+			       struct dentry *dentry,
+			       const char *symname)
+{
+	struct autofs_sb_info *sbi = autofs4_sbi(dir->i_sb);
+	struct autofs_info *ino = autofs4_dentry_ino(dentry);
+	struct inode *inode;
+	char *cp;
+
+	DPRINTK(("autofs_dir_symlink: %s <- %.*s\n", symname, 
+		 dentry->d_name.len, dentry->d_name.name));
+
+	if (!autofs4_oz_mode(sbi))
+		return -EACCES;
+
+	ino = autofs4_init_ino(ino, sbi, S_IFLNK | 0555);
+	if (ino == NULL)
+		return -ENOSPC;
+
+	ino->size = strlen(symname);
+	ino->u.symlink = cp = kmalloc(ino->size + 1, GFP_KERNEL);
+
+	if (cp == NULL) {
+		kfree(ino);
+		return -ENOSPC;
+	}
+
+	strcpy(cp, symname);
+
+	inode = autofs4_get_inode(dir->i_sb, ino);
+	d_instantiate(dentry, inode);
+
+	if (dir == dir->i_sb->s_root->d_inode)
+		dentry->d_op = &autofs4_root_dentry_operations;
+	else
+		dentry->d_op = &autofs4_dentry_operations;
+
+	dentry->d_fsdata = ino;
+	ino->dentry = dget(dentry);
+	ino->inode = inode;
+
+	dir->i_mtime = CURRENT_TIME;
+
+	return 0;
+}
+
+/*
+ * NOTE!
+ *
+ * Normal filesystems would do a "d_delete()" to tell the VFS dcache
+ * that the file no longer exists. However, doing that means that the
+ * VFS layer can turn the dentry into a negative dentry.  We don't want
+ * this, because since the unlink is probably the result of an expire.
+ * We simply d_drop it, which allows the dentry lookup to remount it
+ * if necessary.
+ *
+ * If a process is blocked on the dentry waiting for the expire to finish,
+ * it will invalidate the dentry and try to mount with a new one.
+ *
+ * Also see autofs_dir_rmdir().. 
+ */
+static int autofs4_dir_unlink(struct inode *dir, struct dentry *dentry)
+{
+	struct autofs_sb_info *sbi = autofs4_sbi(dir->i_sb);
+	struct autofs_info *ino = autofs4_dentry_ino(dentry);
+	
+	/* This allows root to remove symlinks */
+	if ( !autofs4_oz_mode(sbi) && !capable(CAP_SYS_ADMIN) )
+		return -EACCES;
+
+	dput(ino->dentry);
+
+	dentry->d_inode->i_size = 0;
+	dentry->d_inode->i_nlink = 0;
+
+	dir->i_mtime = CURRENT_TIME;
+
+	d_drop(dentry);
+	
+	return 0;
+}
+
+static int autofs4_dir_rmdir(struct inode *dir, struct dentry *dentry)
+{
+	struct autofs_sb_info *sbi = autofs4_sbi(dir->i_sb);
+	struct autofs_info *ino = autofs4_dentry_ino(dentry);
+	
+	if (!autofs4_oz_mode(sbi))
+		return -EACCES;
+
+	spin_lock(&dcache_lock);
+	if (!list_empty(&dentry->d_subdirs)) {
+		spin_unlock(&dcache_lock);
+		return -ENOTEMPTY;
+	}
+	list_del_init(&dentry->d_hash);
+	spin_unlock(&dcache_lock);
+
+	dput(ino->dentry);
+
+	dentry->d_inode->i_size = 0;
+	dentry->d_inode->i_nlink = 0;
+
+	if (dir->i_nlink)
+		dir->i_nlink--;
+
+	return 0;
+}
+
+
+
+static int autofs4_dir_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+{
+	struct autofs_sb_info *sbi = autofs4_sbi(dir->i_sb);
+	struct autofs_info *ino = autofs4_dentry_ino(dentry);
+	struct inode *inode;
+
+	if ( !autofs4_oz_mode(sbi) )
+		return -EACCES;
+
+	DPRINTK(("autofs_dir_mkdir: dentry %p, creating %.*s\n",
+		 dentry, dentry->d_name.len, dentry->d_name.name));
+
+	ino = autofs4_init_ino(ino, sbi, S_IFDIR | 0555);
+	if (ino == NULL)
+		return -ENOSPC;
+
+	inode = autofs4_get_inode(dir->i_sb, ino);
+	d_instantiate(dentry, inode);
+
+	if (dir == dir->i_sb->s_root->d_inode)
+		dentry->d_op = &autofs4_root_dentry_operations;
+	else
+		dentry->d_op = &autofs4_dentry_operations;
+
+	dentry->d_fsdata = ino;
+	ino->dentry = dget(dentry);
+	ino->inode = inode;
+	dir->i_nlink++;
+	dir->i_mtime = CURRENT_TIME;
+
+	return 0;
+}
+
+/* Get/set timeout ioctl() operation */
+static inline int autofs4_get_set_timeout(struct autofs_sb_info *sbi,
+					 unsigned long *p)
+{
+	int rv;
+	unsigned long ntimeout;
+
+	if ( (rv = get_user(ntimeout, p)) ||
+	     (rv = put_user(sbi->exp_timeout/HZ, p)) )
+		return rv;
+
+	if ( ntimeout > ULONG_MAX/HZ )
+		sbi->exp_timeout = 0;
+	else
+		sbi->exp_timeout = ntimeout * HZ;
+
+	return 0;
+}
+
+/* Return protocol version */
+static inline int autofs4_get_protover(struct autofs_sb_info *sbi, int *p)
+{
+	return put_user(sbi->version, p);
+}
+
+/* Identify autofs_dentries - this is so we can tell if there's
+   an extra dentry refcount or not.  We only hold a refcount on the
+   dentry if its non-negative (ie, d_inode != NULL)
+*/
+int is_autofs4_dentry(struct dentry *dentry)
+{
+	return dentry && dentry->d_inode &&
+		(dentry->d_op == &autofs4_root_dentry_operations ||
+		 dentry->d_op == &autofs4_dentry_operations) &&
+		dentry->d_fsdata != NULL;
+}
+
+/*
+ * ioctl()'s on the root directory is the chief method for the daemon to
+ * generate kernel reactions
+ */
+static int autofs4_root_ioctl(struct inode *inode, struct file *filp,
+			     unsigned int cmd, unsigned long arg)
+{
+	struct autofs_sb_info *sbi = autofs4_sbi(inode->i_sb);
+
+	DPRINTK(("autofs_ioctl: cmd = 0x%08x, arg = 0x%08lx, sbi = %p, pgrp = %u\n",
+		 cmd,arg,sbi,current->pgrp));
+
+	if ( _IOC_TYPE(cmd) != _IOC_TYPE(AUTOFS_IOC_FIRST) ||
+	     _IOC_NR(cmd) - _IOC_NR(AUTOFS_IOC_FIRST) >= AUTOFS_IOC_COUNT )
+		return -ENOTTY;
+	
+	if ( !autofs4_oz_mode(sbi) && !capable(CAP_SYS_ADMIN) )
+		return -EPERM;
+	
+	switch(cmd) {
+	case AUTOFS_IOC_READY:	/* Wait queue: go ahead and retry */
+		return autofs4_wait_release(sbi,(autofs_wqt_t)arg,0);
+	case AUTOFS_IOC_FAIL:	/* Wait queue: fail with ENOENT */
+		return autofs4_wait_release(sbi,(autofs_wqt_t)arg,-ENOENT);
+	case AUTOFS_IOC_CATATONIC: /* Enter catatonic mode (daemon shutdown) */
+		autofs4_catatonic_mode(sbi);
+		return 0;
+	case AUTOFS_IOC_PROTOVER: /* Get protocol version */
+		return autofs4_get_protover(sbi, (int *)arg);
+	case AUTOFS_IOC_SETTIMEOUT:
+		return autofs4_get_set_timeout(sbi,(unsigned long *)arg);
+
+	/* return a single thing to expire */
+	case AUTOFS_IOC_EXPIRE:
+		return autofs4_expire_run(inode->i_sb,filp->f_vfsmnt,sbi,
+					  (struct autofs_packet_expire *)arg);
+	/* same as above, but can send multiple expires through pipe */
+	case AUTOFS_IOC_EXPIRE_MULTI:
+		return autofs4_expire_multi(inode->i_sb,filp->f_vfsmnt,sbi,
+					    (int *)arg);
+
+	default:
+		return -ENOSYS;
+	}
+}
diff --git a/fs/autofs4/symlink.c b/fs/autofs4/symlink.c
new file mode 100644
index 00000000000000..40f3e80b7a66d4
--- /dev/null
+++ b/fs/autofs4/symlink.c
@@ -0,0 +1,32 @@
+/* -*- c -*- --------------------------------------------------------------- *
+ *
+ * linux/fs/autofs/symlink.c
+ *
+ *  Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * ------------------------------------------------------------------------- */
+
+#include "autofs_i.h"
+
+static int autofs4_readlink(struct dentry *dentry, char *buffer, int buflen)
+{
+	struct autofs_info *ino = autofs4_dentry_ino(dentry);
+
+	return vfs_readlink(dentry, buffer, buflen, ino->u.symlink);
+}
+
+static int autofs4_follow_link(struct dentry *dentry, struct nameidata *nd)
+{
+	struct autofs_info *ino = autofs4_dentry_ino(dentry);
+
+	return vfs_follow_link(nd, ino->u.symlink);
+}
+
+struct inode_operations autofs4_symlink_inode_operations = {
+	readlink:	autofs4_readlink,
+	follow_link:	autofs4_follow_link
+};
diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c
new file mode 100644
index 00000000000000..9e5fe900fa4c31
--- /dev/null
+++ b/fs/autofs4/waitq.c
@@ -0,0 +1,250 @@
+/* -*- c -*- --------------------------------------------------------------- *
+ *
+ * linux/fs/autofs/waitq.c
+ *
+ *  Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * ------------------------------------------------------------------------- */
+
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/signal.h>
+#include <linux/file.h>
+#include "autofs_i.h"
+
+/* We make this a static variable rather than a part of the superblock; it
+   is better if we don't reassign numbers easily even across filesystems */
+static autofs_wqt_t autofs4_next_wait_queue = 1;
+
+/* These are the signals we allow interrupting a pending mount */
+#define SHUTDOWN_SIGS	(sigmask(SIGKILL) | sigmask(SIGINT) | sigmask(SIGQUIT))
+
+void autofs4_catatonic_mode(struct autofs_sb_info *sbi)
+{
+	struct autofs_wait_queue *wq, *nwq;
+
+	DPRINTK(("autofs: entering catatonic mode\n"));
+
+	sbi->catatonic = 1;
+	wq = sbi->queues;
+	sbi->queues = NULL;	/* Erase all wait queues */
+	while ( wq ) {
+		nwq = wq->next;
+		wq->status = -ENOENT; /* Magic is gone - report failure */
+		kfree(wq->name);
+		wq->name = NULL;
+		wake_up(&wq->queue);
+		wq = nwq;
+	}
+	if (sbi->pipe) {
+		fput(sbi->pipe);	/* Close the pipe */
+		sbi->pipe = NULL;
+	}
+
+	shrink_dcache_sb(sbi->sb);
+}
+
+static int autofs4_write(struct file *file, const void *addr, int bytes)
+{
+	unsigned long sigpipe, flags;
+	mm_segment_t fs;
+	const char *data = (const char *)addr;
+	ssize_t wr = 0;
+
+	/** WARNING: this is not safe for writing more than PIPE_BUF bytes! **/
+
+	sigpipe = sigismember(&current->pending.signal, SIGPIPE);
+
+	/* Save pointer to user space and point back to kernel space */
+	fs = get_fs();
+	set_fs(KERNEL_DS);
+
+	while (bytes &&
+	       (wr = file->f_op->write(file,data,bytes,&file->f_pos)) > 0) {
+		data += wr;
+		bytes -= wr;
+	}
+
+	set_fs(fs);
+
+	/* Keep the currently executing process from receiving a
+	   SIGPIPE unless it was already supposed to get one */
+	if (wr == -EPIPE && !sigpipe) {
+		spin_lock_irqsave(&current->sigmask_lock, flags);
+		sigdelset(&current->pending.signal, SIGPIPE);
+		recalc_sigpending(current);
+		spin_unlock_irqrestore(&current->sigmask_lock, flags);
+	}
+
+	return (bytes > 0);
+}
+	
+static void autofs4_notify_daemon(struct autofs_sb_info *sbi,
+				 struct autofs_wait_queue *wq,
+				 int type)
+{
+	union autofs_packet_union pkt;
+	size_t pktsz;
+
+	DPRINTK(("autofs_notify: wait id = 0x%08lx, name = %.*s, type=%d\n",
+		 wq->wait_queue_token, wq->len, wq->name, type));
+
+	memset(&pkt,0,sizeof pkt); /* For security reasons */
+
+	pkt.hdr.proto_version = sbi->version;
+	pkt.hdr.type = type;
+	if (type == autofs_ptype_missing) {
+		struct autofs_packet_missing *mp = &pkt.missing;
+
+		pktsz = sizeof(*mp);
+
+		mp->wait_queue_token = wq->wait_queue_token;
+		mp->len = wq->len;
+		memcpy(mp->name, wq->name, wq->len);
+		mp->name[wq->len] = '\0';
+	} else if (type == autofs_ptype_expire_multi) {
+		struct autofs_packet_expire_multi *ep = &pkt.expire_multi;
+
+		pktsz = sizeof(*ep);
+
+		ep->wait_queue_token = wq->wait_queue_token;
+		ep->len = wq->len;
+		memcpy(ep->name, wq->name, wq->len);
+		ep->name[wq->len] = '\0';
+	} else {
+		printk("autofs_notify_daemon: bad type %d!\n", type);
+		return;
+	}
+
+	if (autofs4_write(sbi->pipe, &pkt, pktsz))
+		autofs4_catatonic_mode(sbi);
+}
+
+int autofs4_wait(struct autofs_sb_info *sbi, struct qstr *name,
+		enum autofs_notify notify)
+{
+	struct autofs_wait_queue *wq;
+	int status;
+
+	/* In catatonic mode, we don't wait for nobody */
+	if ( sbi->catatonic )
+		return -ENOENT;
+	
+	/* We shouldn't be able to get here, but just in case */
+	if ( name->len > NAME_MAX )
+		return -ENOENT;
+
+	for ( wq = sbi->queues ; wq ; wq = wq->next ) {
+		if ( wq->hash == name->hash &&
+		     wq->len == name->len &&
+		     wq->name && !memcmp(wq->name,name->name,name->len) )
+			break;
+	}
+	
+	if ( !wq ) {
+		/* Create a new wait queue */
+		wq = kmalloc(sizeof(struct autofs_wait_queue),GFP_KERNEL);
+		if ( !wq )
+			return -ENOMEM;
+
+		wq->name = kmalloc(name->len,GFP_KERNEL);
+		if ( !wq->name ) {
+			kfree(wq);
+			return -ENOMEM;
+		}
+		wq->wait_queue_token = autofs4_next_wait_queue;
+		if (++autofs4_next_wait_queue == 0)
+			autofs4_next_wait_queue = 1;
+		init_waitqueue_head(&wq->queue);
+		wq->hash = name->hash;
+		wq->len = name->len;
+		wq->status = -EINTR; /* Status return if interrupted */
+		memcpy(wq->name, name->name, name->len);
+		wq->next = sbi->queues;
+		sbi->queues = wq;
+
+		DPRINTK(("autofs_wait: new wait id = 0x%08lx, name = %.*s, nfy=%d\n",
+			 wq->wait_queue_token, wq->len, wq->name, notify));
+		/* autofs4_notify_daemon() may block */
+		wq->wait_ctr = 2;
+		if (notify != NFY_NONE) {
+			autofs4_notify_daemon(sbi,wq, 
+					      notify == NFY_MOUNT ? autofs_ptype_missing :
+								    autofs_ptype_expire_multi);
+		}
+	} else {
+		wq->wait_ctr++;
+		DPRINTK(("autofs_wait: existing wait id = 0x%08lx, name = %.*s, nfy=%d\n",
+			 wq->wait_queue_token, wq->len, wq->name, notify));
+	}
+
+	/* wq->name is NULL if and only if the lock is already released */
+
+	if ( sbi->catatonic ) {
+		/* We might have slept, so check again for catatonic mode */
+		wq->status = -ENOENT;
+		if ( wq->name ) {
+			kfree(wq->name);
+			wq->name = NULL;
+		}
+	}
+
+	if ( wq->name ) {
+		/* Block all but "shutdown" signals while waiting */
+		sigset_t oldset;
+		unsigned long irqflags;
+
+		spin_lock_irqsave(&current->sigmask_lock, irqflags);
+		oldset = current->blocked;
+		siginitsetinv(&current->blocked, SHUTDOWN_SIGS & ~oldset.sig[0]);
+		recalc_sigpending(current);
+		spin_unlock_irqrestore(&current->sigmask_lock, irqflags);
+
+		interruptible_sleep_on(&wq->queue);
+
+		spin_lock_irqsave(&current->sigmask_lock, irqflags);
+		current->blocked = oldset;
+		recalc_sigpending(current);
+		spin_unlock_irqrestore(&current->sigmask_lock, irqflags);
+	} else {
+		DPRINTK(("autofs_wait: skipped sleeping\n"));
+	}
+
+	status = wq->status;
+
+	if (--wq->wait_ctr == 0)	/* Are we the last process to need status? */
+		kfree(wq);
+
+	return status;
+}
+
+
+int autofs4_wait_release(struct autofs_sb_info *sbi, autofs_wqt_t wait_queue_token, int status)
+{
+	struct autofs_wait_queue *wq, **wql;
+
+	for ( wql = &sbi->queues ; (wq = *wql) ; wql = &wq->next ) {
+		if ( wq->wait_queue_token == wait_queue_token )
+			break;
+	}
+	if ( !wq )
+		return -EINVAL;
+
+	*wql = wq->next;	/* Unlink from chain */
+	kfree(wq->name);
+	wq->name = NULL;	/* Do not wait on this queue */
+
+	wq->status = status;
+
+	if (--wq->wait_ctr == 0)	/* Is anyone still waiting for this guy? */
+		kfree(wq);
+	else
+		wake_up(&wq->queue);
+
+	return 0;
+}
+
diff --git a/fs/bad_inode.c b/fs/bad_inode.c
new file mode 100644
index 00000000000000..850ba5e9f551d4
--- /dev/null
+++ b/fs/bad_inode.c
@@ -0,0 +1,108 @@
+/*
+ *  linux/fs/bad_inode.c
+ *
+ *  Copyright (C) 1997, Stephen Tweedie
+ *
+ *  Provide stub functions for unreadable inodes
+ */
+
+#include <linux/fs.h>
+#include <linux/stat.h>
+#include <linux/sched.h>
+
+/*
+ * The follow_link operation is special: it must behave as a no-op
+ * so that a bad root inode can at least be unmounted. To do this
+ * we must dput() the base and return the dentry with a dget().
+ */
+static int bad_follow_link(struct dentry *dent, struct nameidata *nd)
+{
+	return vfs_follow_link(nd, ERR_PTR(-EIO));
+}
+
+static int return_EIO(void)
+{
+	return -EIO;
+}
+
+#define EIO_ERROR ((void *) (return_EIO))
+
+static struct file_operations bad_file_ops =
+{
+	llseek:		EIO_ERROR,
+	read:		EIO_ERROR,
+	write:		EIO_ERROR,
+	readdir:	EIO_ERROR,
+	poll:		EIO_ERROR,
+	ioctl:		EIO_ERROR,
+	mmap:		EIO_ERROR,
+	open:		EIO_ERROR,
+	flush:		EIO_ERROR,
+	release:	EIO_ERROR,
+	fsync:		EIO_ERROR,
+	fasync:		EIO_ERROR,
+	lock:		EIO_ERROR,
+};
+
+struct inode_operations bad_inode_ops =
+{
+	create:		EIO_ERROR,
+	lookup:		EIO_ERROR,
+	link:		EIO_ERROR,
+	unlink:		EIO_ERROR,
+	symlink:	EIO_ERROR,
+	mkdir:		EIO_ERROR,
+	rmdir:		EIO_ERROR,
+	mknod:		EIO_ERROR,
+	rename:		EIO_ERROR,
+	readlink:	EIO_ERROR,
+	follow_link:	bad_follow_link,
+	truncate:	EIO_ERROR,
+	permission:	EIO_ERROR,
+	revalidate:	EIO_ERROR,
+};
+
+
+/*
+ * When a filesystem is unable to read an inode due to an I/O error in
+ * its read_inode() function, it can call make_bad_inode() to return a
+ * set of stubs which will return EIO errors as required. 
+ *
+ * We only need to do limited initialisation: all other fields are
+ * preinitialised to zero automatically.
+ */
+ 
+/**
+ *	make_bad_inode - mark an inode bad due to an I/O error
+ *	@inode: Inode to mark bad
+ *
+ *	When an inode cannot be read due to a media or remote network
+ *	failure this function makes the inode "bad" and causes I/O operations
+ *	on it to fail from this point on.
+ */
+ 
+void make_bad_inode(struct inode * inode) 
+{
+	inode->i_mode = S_IFREG;
+	inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+	inode->i_op = &bad_inode_ops;	
+	inode->i_fop = &bad_file_ops;	
+}
+
+/*
+ * This tests whether an inode has been flagged as bad. The test uses
+ * &bad_inode_ops to cover the case of invalidated inodes as well as
+ * those created by make_bad_inode() above.
+ */
+ 
+/**
+ *	is_bad_inode - is an inode errored
+ *	@inode: inode to test
+ *
+ *	Returns true if the inode in question has been marked as bad.
+ */
+ 
+int is_bad_inode(struct inode * inode) 
+{
+	return (inode->i_op == &bad_inode_ops);	
+}
diff --git a/fs/befs/ChangeLog b/fs/befs/ChangeLog
new file mode 100644
index 00000000000000..8e09a0bd8ebb55
--- /dev/null
+++ b/fs/befs/ChangeLog
@@ -0,0 +1,417 @@
+Version 0.92 (2002-03-29)
+==========
+* Minor cleanup. Ran Lindent on the sources.
+
+Version 0.92 (2002-03-27)
+==========
+* Fixed module makefile problem. It was not compiling all the correct 
+    source files!
+* Removed duplicated function definition
+* Fixed potential null pointer dereference when reporting an error
+
+Version 0.91 (2002-03-26)
+==========
+* Oy! Fixed stupid bug that would cause an unresolved symbol error.
+	Thanks to Laszlo Boszormenyi for pointing this out to me.
+
+Version 0.9 (2002-03-14)
+==========
+* Added Sergey S. Kostyliov's patch to eliminate memcpy() overhead
+	from b+tree operations. Changes the befs_read_datastream() interface.
+
+* Segregated the functions that interface directly with the linux  vfs 
+	interface into their own file called linuxvfs.c. [WD]
+
+Version 0.64 (2002-02-07)
+==========
+* Did the string comparision really right this time (btree.c) [WD]
+
+* Fixed up some places where I assumed that a long int could hold
+	a pointer value. (btree.c) [WD]
+
+* Andrew Farnham <andrewfarnham@uq.net.au> pointed out that the module
+	wouldn't work on older (<2.4.10) kernels due to an unresolved symbol.
+	This is bad, since 2.4.9 is still the current RedHat kernel. I added
+	a workaround for this problem (compatability.h) [WD]
+
+* Sergey S. Kostyliov made befs_find_key() use a binary search to find 
+	keys within btree nodes, rather than the linear search we were using 
+	before. (btree.c) [Sergey S. Kostyliov <rathamahata@php4.ru>]
+
+* Made a debian package of the source for use with kernel-package. [WD]
+
+
+Version 0.63 (2002-01-31)
+==========
+* Fixed bug in befs_find_brun_indirect() that would result in the wrong
+	block being read. It was introduced when adding byteswapping in 
+	0.61. (datastream.c) [WD]
+
+* Fixed a longstanding bug in befs_find_key() that would result in it 
+	finding the first key that is a substring of the string it is searching
+	for. For example, this would cause files in the same directory with 
+	names like file1 and file2 to mysteriously be duplicates of each other 
+	(because they have the same inode number). Many thanks to Pavel Roskin 
+	for reporting this serious bug!!!
+	(btree.c) [WD]
+
+* Added support for long symlinks, after Axel Dorfler explained up how 
+	they work. I had forgotten all about them. (inode.c, symlink.c) [WD]
+
+* Documentation improvements in source. [WD]
+
+* Makefile fix for independant module when CONFIG_MODVERSION is set in 
+	kernel config [Pavel Roskin <proski@gnu.org>]
+
+* Compile warning fix for namei.c. [Sergey S. Kostyliov <rathamahata@php4.ru>]
+
+
+Version 0.62
+==========
+* Fixed makefile for module install [WD]
+
+
+Version 0.61 (2002-01-20)
+==========
+* Made functions in endian.h to do the correct byteswapping, no matter
+	the arch. [WD]
+
+* Abbandoned silly checks for a NULL superblock pointer in debug.c. [WD]
+
+* Misc code cleanups. Also cleanup of this changelog file. [WD]
+
+* Added byteswapping to all metadata reads from disk.
+	Uses the functions from endian.h [WD]
+
+* Remove the typedef of struct super_block to vfs_sb, as it offended
+	certain peoples' aesthetic sense. [WD]
+
+* Ditto with the befs_read_block() interface. [WD]
+ 
+
+Version 0.6 (2001-12-15)
+==========
+* Cleanup of NLS functions (util.c) [WD]
+
+* Make directory lookup/read use the NLS if an iocharset is provided. [WD]
+
+* Fixed stupid bug where specifying the uid or gid mount options as '0' 
+	would result in the filesystem using the on-disk uid and gid. [WD]
+
+* Added mount option to control debug printing. 
+	The option is, simply enough, 'debug'. 
+	(super.c, debug.c) [WD]
+
+* Removed notion of btree handle from btree.c. It was unessisary, as the 
+	linux VFS doesn't allow us to keep any state between calls. Updated 
+	dir.c, namei.c befs_fs.h to account for it. [WD]
+
+* Improved handleing of overflow nodes when listing directories. 
+	Now works for overflow nodes hanging off of nodes other than the root 
+	node. This is the cleaner solution to Brent Miszalaski's problem. [WD]
+
+* Added new debug/warning/error print functions in debug.c. 
+	More flexible. Will soon be controllable at mount time 
+	(see TODO). [WD]
+
+* Rewrote datastream positon lookups.
+	(datastream.c) [WD]
+
+* Moved the TODO list to it's own file.
+
+
+Version 0.50 (2001-11-13)
+==========
+* Added workaround for mis-understanding of the nature of the b+trees used 
+	in directories. A cleaner solution will come after I've thought about it 
+	for a while. Thanks to Brent Miszalaski for finding and reporting this bug. 
+	(btree.c) [WD]
+
+* Minor cleanups
+
+* Added test for "impossible" condition of empty internal nodes in 
+	seekleaf() in btree.c [WD]
+
+* Implemented the abstracted read_block() in io.c [WD]
+
+* Cleaned up the inode validation in inode.c [WD]
+
+* Anton Altaparmakov figured out (by asking Linus :) ) what was causing the 
+ 	hanging disk io problem. It turns out you need to have the sync_pages 
+	callback defined in your address_space_ops, even if it just uses the 
+	default linux-supplied implementation. Fixed. Works now.
+	(file.c) [WD]
+
+* Anton Altaparmakov and Christoph Hellwig alerted me to the fact that 
+	filesystem code should be using GFP_NOFS instead of GFP_KERNEL as the 
+	priority parameter to kmalloc(). Fixed. 
+	(datastream.c, btree.c super.c inode.c) [WD]
+
+* Anton also told me that the blocksize is not allowed to be larger than 
+	the page size in linux, which is 4k i386. Oops. Added a test for 
+	(blocksize > PAGE_SIZE), and refuse to mount in that case. What this 
+	practicaly means is that 8k blocksize volumes won't work without a major
+	restructuring of the driver (or an alpha or other 64bit hardware). [WD]
+
+* Cleaned up the befs_count_blocks() function. Much smarter now. 
+	And somewhat smaller too. [WD]
+
+* Made inode allocations use a slab cache 
+	(super.c inode.c) [WD]
+
+* Moved the freeing of the private inode section from put_inode() to 
+	clear_inode(). This fixes a potential free twice type bug. Put_inode() 
+	can be called multiple times for each inode struct. [WD]
+
+* Converted all non vfs-callback functions to use befs_sb_info as the 
+	superblock type, rather than struct super_block. This is for 
+	portablity. [WD]
+
+* Fixed a couple of compile warnings due to use of malloc.h, when slab.h 
+	is the new way. (inode.c, super.c) [WD]
+
+* Fixed erronous includes of linux/befs_fs_i.h and linux/befs_fs_sb.h 
+	in inode.c [WD]
+
+Version 0.45 (2001-10-29)
+==========
+* Added functions to get the private superblock and inode structures from 
+	their enclosing public structures. Switched all references to the 
+	private portions to use them. (many files) [WD]
+
+* Made read_super and read_inode allocate the private portions of those 
+	structures into the generic pointer fields of the public structures 
+	with kmalloc(). put_super and put_inode free them. This allows us not 
+	to have to touch the definitions of the public structures in 
+	include/linux/fs.h. Also, befs_inode_info is huge (becuase of the 
+	symlink string). (super.c, inode.c, befs_fs.h) [WD]
+
+* Fixed a thinko that was corrupting file reads after the first block_run 
+	is done being read. (datastream.c) [WD]
+
+* Removed fsync() hooks, since a read-only filesystem doesn't need them. 
+	[Christoph Hellwig].
+
+* Fixed befs_readlink() (symlink.c) [Christoph Hellwig].
+
+* Removed all the Read-Write stuff. I'll redo it when it is time to add 
+	write support (various files) [WD].
+
+* Removed prototypes for functions who's definitions have been removed 
+	(befs_fs.h) [WD].
+
+
+Version 0.4 (2001-10-28)
+==========
+* Made it an option to use the old non-pagecache befs_file_read() for 
+	testing purposes. (fs/Config.in)
+
+* Fixed unused variable warnings when compiling without debugging.
+
+* Fixed a bug where the inode and super_block didn't get their blockbits 
+	fields set (inode.c and super.c). 
+
+* Release patch version 11. AKA befs-driver version 0.4.
+
+* Thats right. New versioning scheme. 
+	I've done some serious testing on it now (on my box anyhow), and it 
+	seems stable and not outragously slow. Existing features are more-or-less 
+	correct (see TODO list). But it isn't 1.0 yet. I think 0.4 gives me some 
+	headroom before the big 1.0.
+
+
+2001-10-26
+==========
+* Fixed date format in this file. Was I smoking crack?
+
+* Removed old datastream code from file.c, since it is nolonger used.
+
+* Generic_read_file() is now used to read regular file data. 
+	It doesn't chew up the buffer cache (it does page io instead), and seems 
+	to be about as fast (even though it has to look up each file block 
+	indivdualy). And it knows about doing readahead, which is a major plus. 
+	So it does i/o in much larger chunks. It is the correct linux way. It 
+	uses befs_get_block() by way of befs_readpage() to find the disk offsets 
+	of blocks, which in turn calls befs_fpos2brun() in datastream.c to do 
+	the hard work of finding the disk block number.
+
+* Changed method of checking for a dirty filesystem in befs_read_super 
+	(super.c). Now we check to see if log_start and log_end differ. If so, 
+	the journal needs to be replayed, and the filesystem cannot be mounted.
+
+* Fixed an extra instance of MOD_DEC_USE_COUNT in super.c
+
+* Fixed a problem with reading the superblock on devices with large sector 
+	sizes (such as cdroms) on linux 2.4.10 and up.
+
+2001-10-24
+==========
+* Fix nasty bug in converting block numbers to struct befs_inode_addr. 
+	Subtle, because the old version was only sometimes wrong. 
+	Probably responsible for lots of problems. (inode.c)
+
+* Fix bug with reading an empty directory. (btree.c and dir.c)
+
+* This one looks good. Release patch version 10
+
+2001-10-23
+==========
+* Added btree searching function.
+
+* Use befs_btree_find in befs_lookup (namei.c)
+
+* Additional comments in btree.c
+
+2001-10-22
+==========
+* Added B+tree reading functions (in btree.c). 
+	Made befs_readdir() use them them instead of the cruft in index.c.
+
+2001-09-11
+==========
+* Converted befs_read_file() to use the new datastream code.
+
+* Finally updated the README file.
+
+* Added many comments.
+
+* Posted version 6
+
+* Removed byte-order conversion code. 
+	I have no intention of supporting it, and it was very ugly. 
+	Flow control with #ifdef (ugh). Maybe I'll redo it once 
+	native byteorder works 100%.
+
+2001-09-10
+==========
+* Finished implementing read_datastream()
+
+* made befs_read_brun() more general
+	Supports an offset to start at and a max bytes to read
+	Added a wrapper function to give the old call
+
+2001-09-30
+==========
+* Discovered that the datastream handleing code in file.c is quite deficient 
+	in several respects. For one thing, it doesn't deal with indirect blocks
+
+* Rewrote datastream handleing.
+
+* Created io.c, for io related functions.
+	Previously, the befs_bread() funtions lived in file.c
+	Created the befs_read_brun() function.
+
+
+2001-09-07
+==========
+* Made a function to actually count the number of fs blocks used by a file.
+	And helper functions.
+	(fs/befs/inode.c)
+
+2001-09-05
+==========
+* Fixed a misunderstanding of the inode fields. 
+	This fixed the problmem with wrong file sizes from du and others.
+	The i_blocks field of the inode struct is not the nuber of blocks for the 
+	inode, it is the number of blocks for the file.	Also, i_blksize is not
+	nessisarily the size of the inode, although in  practice it works out.
+	Changed to blocksize of filesystem.
+	(fs/befs/inode.c)
+
+* Permanently removed code that had been provisionally ifdefed out of befs_fs.h
+
+* Since we don't support access time, make that field zero, instead of 
+	copying m_time.
+	(fs/befs/inode.c)
+
+* Added sanity check for inode reading
+	Make sure inode we got was the one we asked for. 
+	(fs/befs/inode.c)
+
+* Code cleanup
+	Local pointers to commonly used structures in inode.c.
+	Got rid of abominations befs_iaddr2inode() and befs_inode2ino(). 
+	Replaced with single function iaddr2blockno().
+	(fs/befs/super.c) (fs/befs/inode.c)
+
+2001-09-01
+==========
+* Fixed the problem with statfs where it would always claim the disk was 
+	half full, due to improper understanding of the statfs fields.
+	(fs/befs/super.c)
+
+* Posted verion 4 of the patch
+
+2001-09-01
+==========
+* Changed the macros in befs_fs.h to inline functions.
+	More readable. Typesafe. Better
+	(include/linux/befs_fs.h)
+
+* Moved type definitions from befs_fs.h to a new file, befs_fs_types.h 
+	Because befs_fs_i.h and befs_fs_sb.h were including befs_fs.h for the 
+	typedefs, and they are inlcuded in <linux/fs.h>, which has definitions 
+	that I want the inline functions in befs_fs.h to be able to see. Nasty
+	circularity.
+	(include/linux/befs_fs.h)
+
+2001-08-30
+==========
+* Cleaned up some wording.
+
+* Added additional consitency checks on mount
+	Check block_size agrees with block_shift
+	Check flags == BEFS_CLEAN
+	(fs/befs/super.c)
+
+* Tell the kernel to only mount befs read-only. 
+	By setting the MS_RDONLY flag in befs_read_super().
+	Not that it was possible to write before. But now the kernel won't even try.
+	(fs/befs/super.c)
+
+* Got rid of kernel warning on mount.
+	The kernel doesn't like it if you call set_blocksize() on a device when 
+	you have some of its blocks open. Moved the second set_blocksize() to the
+	very end of befs_read_super(), after we are done with the disk superblock.
+	(fs/befs/super.c)
+	
+* Fixed wrong number of args bug in befs_dump_inode
+	(fs/befs/debug.c)
+
+* Solved lots of type mismatches in kprint()s
+	(everwhere)
+
+2001-08-27
+==========
+* Cleaned up the fs/Config.in entries a bit, now slightly more descriptive.
+
+* BeFS depends on NLS, so I made activating BeFS enable the NLS questions
+	(fs/nls/Config.in)
+
+* Added Configure.help entries for CONFIG_BEFS_FS and CONFIG_DEBUG_BEFS
+	(Documentation/Configure.help)
+
+2001-08-??
+==========
+* Removed superblock locking calls in befs_read_super(). In 2.4, the VFS 
+	hands us a super_block struct that is already locked.
+
+2001-08-13
+==========
+* Will Dyson <will_dyson@pobox.com> is now attempting to maintain this module
+	Makoto Kato <m_kato@ga2.so-net.ne.jp> is original author.Daniel Berlin 
+	also did some work on it (fixing it up for the later 2.3.x kernels, IIRC).
+
+* Fixed compile errors on 2.4.1 kernel (WD)
+	Resolve rejected patches
+	Accomodate changed NLS interface (util.h)
+	Needed to include <linux/slab.h> in most files
+	Makefile changes
+	fs/Config.in changes
+
+* Tried to niceify the code using the ext2 fs as a guide
+	Declare befs_fs_type using the DECLARE_FSTYPE_DEV() macro
+
+* Made it a configure option to turn on debugging (fs/Config.in)
+
+* Compiles on 2.4.7
diff --git a/fs/befs/Makefile b/fs/befs/Makefile
new file mode 100644
index 00000000000000..cf20ad65f80a5c
--- /dev/null
+++ b/fs/befs/Makefile
@@ -0,0 +1,15 @@
+#
+# Makefile for the linux BeOS filesystem routines.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile...
+
+O_TARGET := befs.o
+
+obj-y    := datastream.o btree.o super.o inode.o debug.o io.o linuxvfs.o
+obj-m    := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/befs/TODO b/fs/befs/TODO
new file mode 100644
index 00000000000000..dbbdd62affd3ca
--- /dev/null
+++ b/fs/befs/TODO
@@ -0,0 +1,11 @@
+TODO
+==========
+
+* Convert comments to the Kernel-Doc format.
+
+* See if Alexander Viro's option parser made it into the kernel tree. 
+	Use that if we can. (include/linux/parser.h)
+
+* See if we really need separate types for on-disk and in-memory 
+	representations of the superblock and inode.
+
diff --git a/fs/befs/attribute.c b/fs/befs/attribute.c
new file mode 100644
index 00000000000000..c00c1defb22383
--- /dev/null
+++ b/fs/befs/attribute.c
@@ -0,0 +1,116 @@
+/*
+ * linux/fs/befs/attribute.c
+ *
+ * Copyright (C) 2002 Will Dyson <will_dyson@pobox.com>
+ *
+ * Many thanks to Dominic Giampaolo, author of "Practical File System
+ * Design with the Be File System", for such a helpful book.
+ *
+ */
+
+#include <linux/fs.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+
+#include "befs.h"
+#include "endian.h"
+
+#define SD_DATA(sd)\
+	(void*)((char*)sd + sizeof(*sd) + (sd->name_size - sizeof(sd->name)))
+
+#define SD_NEXT(sd)\
+	(befs_small_data*)((char*)sd + sizeof(*sd) + (sd->name_size - \
+	sizeof(sd->name) + sd->data_size))
+
+int
+ list_small_data(struct super_block *sb, befs_inode * inode, filldir_t filldir);
+
+befs_small_data *find_small_data(struct super_block *sb, befs_inode * inode,
+				 const char *name);
+int
+ read_small_data(struct super_block *sb, befs_inode * inode,
+		 befs_small_data * sdata, void *buf, size_t bufsize);
+
+/**
+ *
+ *
+ *
+ *
+ *
+ */
+befs_small_data *
+find_small_data(struct super_block *sb, befs_inode * inode, const char *name)
+{
+	befs_small_data *sdata = inode->small_data;
+
+	while (sdata->type != 0) {
+		if (strcmp(name, sdata->name) != 0) {
+			return sdata;
+		}
+		sdata = SD_NEXT(sdata);
+	}
+	return NULL;
+}
+
+/**
+ *
+ *
+ *
+ *
+ *
+ */
+int
+read_small_data(struct super_block *sb, befs_inode * inode,
+		const char *name, void *buf, size_t bufsize)
+{
+	befs_small_data *sdata;
+
+	sdata = find_small_data(sb, inode, name);
+	if (sdata == NULL)
+		return BEFS_ERR;
+	else if (sdata->data_size > bufsize)
+		return BEFS_ERR;
+
+	memcpy(buf, SD_DATA(sdata), sdata->data_size);
+
+	return BEFS_OK;
+}
+
+/**
+ *
+ *
+ *
+ *
+ *
+ */
+int
+list_small_data(struct super_block *sb, befs_inode * inode)
+{
+
+}
+
+/**
+ *
+ *
+ *
+ *
+ *
+ */
+int
+list_attr(struct super_block *sb, befs_inode * inode)
+{
+
+}
+
+/**
+ *
+ *
+ *
+ *
+ *
+ */
+int
+read_attr(struct super_block *sb, befs_inode * inode)
+{
+
+}
diff --git a/fs/befs/befs.h b/fs/befs/befs.h
new file mode 100644
index 00000000000000..31c940b715e0f2
--- /dev/null
+++ b/fs/befs/befs.h
@@ -0,0 +1,152 @@
+/*
+ * befs_fs.h
+ *
+ * Copyright (C) 2001-2002 Will Dyson <will_dyson@pobox.com>
+ * Copyright (C) 1999 Makoto Kato (m_kato@ga2.so-net.ne.jp)
+ */
+
+#ifndef _LINUX_BEFS_H
+#define _LINUX_BEFS_H
+
+#include "befs_fs_types.h"
+
+/* used in debug.c */
+#define BEFS_VERSION "0.9.3"
+
+typedef u64 befs_blocknr_t;
+typedef u32 vfs_blocknr_t;
+
+/*
+ * BeFS in memory structures
+ */
+
+typedef struct befs_mount_options {
+	gid_t gid;
+	uid_t uid;
+	int use_gid;
+	int use_uid;
+	int debug;
+	char *iocharset;
+} befs_mount_options;
+
+typedef struct befs_sb_info {
+	u32 magic1;
+	u32 block_size;
+	u32 block_shift;
+	int byte_order;
+	befs_off_t num_blocks;
+	befs_off_t used_blocks;
+	u32 inode_size;
+	u32 magic2;
+
+	/* Allocation group information */
+	u32 blocks_per_ag;
+	u32 ag_shift;
+	u32 num_ags;
+
+	/* jornal log entry */
+	befs_block_run log_blocks;
+	befs_off_t log_start;
+	befs_off_t log_end;
+
+	befs_inode_addr root_dir;
+	befs_inode_addr indices;
+	u32 magic3;
+
+	befs_mount_options mount_opts;
+	struct nls_table *nls;
+
+} befs_sb_info;
+
+typedef struct befs_inode_info {
+	u32 i_flags;
+	u32 i_type;
+
+	befs_inode_addr i_inode_num;
+	befs_inode_addr i_parent;
+	befs_inode_addr i_attribute;
+
+	union {
+		befs_data_stream ds;
+		char symlink[BEFS_SYMLINK_LEN];
+	} i_data;
+
+} befs_inode_info;
+
+enum befs_err {
+	BEFS_OK,
+	BEFS_ERR,
+	BEFS_BAD_INODE,
+	BEFS_BT_END,
+	BEFS_BT_EMPTY,
+	BEFS_BT_MATCH,
+	BEFS_BT_PARMATCH,
+	BEFS_BT_NOT_FOUND
+};
+
+/****************************/
+/* debug.c */
+void befs_error(const struct super_block *sb, const char *fmt, ...);
+void befs_warning(const struct super_block *sb, const char *fmt, ...);
+void befs_debug(const struct super_block *sb, const char *fmt, ...);
+
+void befs_dump_super_block(const struct super_block *sb, befs_super_block *);
+void befs_dump_inode(const struct super_block *sb, befs_inode *);
+void befs_dump_index_entry(const struct super_block *sb, befs_btree_super *);
+void befs_dump_index_node(const struct super_block *sb, befs_btree_nodehead *);
+void befs_dump_inode_addr(const struct super_block *sb, befs_inode_addr);
+/****************************/
+
+/* Gets a pointer to the private portion of the super_block
+ * structure from the public part
+ */
+static inline befs_sb_info *
+BEFS_SB(const struct super_block *super)
+{
+	return (befs_sb_info *) super->u.generic_sbp;
+}
+
+static inline befs_inode_info *
+BEFS_I(const struct inode *inode)
+{
+	return (befs_inode_info *) inode->u.generic_ip;
+}
+
+static inline befs_blocknr_t
+iaddr2blockno(struct super_block *sb, befs_inode_addr * iaddr)
+{
+	return ((iaddr->allocation_group << BEFS_SB(sb)->ag_shift) +
+		iaddr->start);
+}
+
+static inline befs_inode_addr
+blockno2iaddr(struct super_block *sb, befs_blocknr_t blockno)
+{
+	befs_inode_addr iaddr;
+	iaddr.allocation_group = blockno >> BEFS_SB(sb)->ag_shift;
+	iaddr.start =
+	    blockno - (iaddr.allocation_group << BEFS_SB(sb)->ag_shift);
+	iaddr.len = 1;
+
+	return iaddr;
+}
+
+static inline unsigned int
+befs_iaddrs_per_block(struct super_block *sb)
+{
+	return BEFS_SB(sb)->block_size / sizeof (befs_inode_addr);
+}
+
+static inline int
+befs_iaddr_is_empty(befs_inode_addr * iaddr)
+{
+	return (!iaddr->allocation_group) && (!iaddr->start) && (!iaddr->len);
+}
+
+static inline size_t
+befs_brun_size(struct super_block *sb, befs_block_run run)
+{
+	return BEFS_SB(sb)->block_size * run.len;
+}
+
+#endif				/* _LINUX_BEFS_H */
diff --git a/fs/befs/befs_fs_types.h b/fs/befs/befs_fs_types.h
new file mode 100644
index 00000000000000..9095518e918d2e
--- /dev/null
+++ b/fs/befs/befs_fs_types.h
@@ -0,0 +1,213 @@
+/*
+ * include/linux/befs_fs_types.h
+ *
+ * Copyright (C) 2001 Will Dyson (will@cs.earlham.edu)
+ *
+ *
+ *
+ * from linux/include/linux/befs_fs.h
+ *
+ * Copyright (C) 1999 Makoto Kato (m_kato@ga2.so-net.ne.jp)
+ *
+ */
+
+#ifndef _LINUX_BEFS_FS_TYPES
+#define _LINUX_BEFS_FS_TYPES
+
+#ifdef __KERNEL__
+#include <linux/types.h>
+#endif /*__KERNEL__*/
+
+#define PACKED __attribute__ ((__packed__))
+
+/*
+ * Max name lengths of BFS
+ */
+
+#define BEFS_NAME_LEN 255
+
+#define BEFS_SYMLINK_LEN 144
+#define BEFS_NUM_DIRECT_BLOCKS 12
+#define B_OS_NAME_LENGTH 32
+
+/* The datastream blocks mapped by the double-indirect
+ * block are always 4 fs blocks long.
+ * This eliminates the need for linear searches among
+ * the potentially huge number of indirect blocks
+ *
+ * Err. Should that be 4 fs blocks or 4k???
+ * It matters on large blocksize volumes
+ */
+#define BEFS_DBLINDIR_BRUN_LEN 4
+
+/*
+ * Flags of superblock
+ */
+
+enum super_flags {
+	BEFS_BYTESEX_BE,
+	BEFS_BYTESEX_LE,
+	BEFS_CLEAN = 0x434c454e,
+	BEFS_DIRTY = 0x44495254,
+	BEFS_SUPER_MAGIC1 = 0x42465331,	/* BFS1 */
+	BEFS_SUPER_MAGIC2 = 0xdd121031,
+	BEFS_SUPER_MAGIC3 = 0x15b6830e,
+};
+
+#define BEFS_BYTEORDER_NATIVE 0x42494745
+
+#define BEFS_SUPER_MAGIC BEFS_SUPER_MAGIC1
+
+/*
+ * Flags of inode
+ */
+
+#define BEFS_INODE_MAGIC1 0x3bbe0ad9
+
+enum inode_flags {
+	BEFS_INODE_IN_USE = 0x00000001,
+	BEFS_ATTR_INODE = 0x00000004,
+	BEFS_INODE_LOGGED = 0x00000008,
+	BEFS_INODE_DELETED = 0x00000010,
+	BEFS_LONG_SYMLINK = 0x00000040,
+	BEFS_PERMANENT_FLAG = 0x0000ffff,
+	BEFS_INODE_NO_CREATE = 0x00010000,
+	BEFS_INODE_WAS_WRITTEN = 0x00020000,
+	BEFS_NO_TRANSACTION = 0x00040000,
+};
+/* 
+ * On-Disk datastructures of BeFS
+ */
+
+typedef u64 befs_off_t;
+typedef u64 befs_time_t;
+typedef void befs_binode_etc;
+
+/* Block runs */
+typedef struct {
+	u32 allocation_group;
+	u16 start;
+	u16 len;
+} PACKED befs_block_run;
+
+typedef befs_block_run befs_inode_addr;
+
+/*
+ * The Superblock Structure
+ */
+typedef struct {
+	char name[B_OS_NAME_LENGTH];
+	u32 magic1;
+	u32 fs_byte_order;
+
+	u32 block_size;
+	u32 block_shift;
+
+	befs_off_t num_blocks;
+	befs_off_t used_blocks;
+
+	u32 inode_size;
+
+	u32 magic2;
+	u32 blocks_per_ag;
+	u32 ag_shift;
+	u32 num_ags;
+
+	u32 flags;
+
+	befs_block_run log_blocks;
+	befs_off_t log_start;
+	befs_off_t log_end;
+
+	u32 magic3;
+	befs_inode_addr root_dir;
+	befs_inode_addr indices;
+
+} PACKED befs_super_block;
+
+/* 
+ * Note: the indirect and dbl_indir block_runs may
+ * be longer than one block!
+ */
+typedef struct {
+	befs_block_run direct[BEFS_NUM_DIRECT_BLOCKS];
+	befs_off_t max_direct_range;
+	befs_block_run indirect;
+	befs_off_t max_indirect_range;
+	befs_block_run double_indirect;
+	befs_off_t max_double_indirect_range;
+	befs_off_t size;
+} PACKED befs_data_stream;
+
+/* Attribute */
+typedef struct {
+	u32 type;
+	u16 name_size;
+	u16 data_size;
+	char name[1];
+} PACKED befs_small_data;
+
+/* Inode structure */
+typedef struct {
+	u32 magic1;
+	befs_inode_addr inode_num;
+	u32 uid;
+	u32 gid;
+	u32 mode;
+	u32 flags;
+	befs_time_t create_time;
+	befs_time_t last_modified_time;
+	befs_inode_addr parent;
+	befs_inode_addr attributes;
+	u32 type;
+
+	u32 inode_size;
+	u32 etc;		/* not use */
+
+	union {
+		befs_data_stream datastream;
+		char symlink[BEFS_SYMLINK_LEN];
+	} data;
+
+	u32 pad[4];		/* not use */
+	befs_small_data small_data[1];
+} PACKED befs_inode;
+
+/*
+ * B+tree superblock
+ */
+
+#define BEFS_BTREE_MAGIC 0x69f6c2e8
+
+enum btree_types {
+	BTREE_STRING_TYPE = 0,
+	BTREE_INT32_TYPE = 1,
+	BTREE_UINT32_TYPE = 2,
+	BTREE_INT64_TYPE = 3,
+	BTREE_UINT64_TYPE = 4,
+	BTREE_FLOAT_TYPE = 5,
+	BTREE_DOUBLE_TYPE = 6
+};
+
+typedef struct {
+	u32 magic;
+	u32 node_size;
+	u32 max_depth;
+	u32 data_type;
+	befs_off_t root_node_ptr;
+	befs_off_t free_node_ptr;
+	befs_off_t max_size;
+} PACKED befs_btree_super;
+
+/*
+ * Header stucture of each btree node
+ */
+typedef struct {
+	befs_off_t left;
+	befs_off_t right;
+	befs_off_t overflow;
+	u16 all_key_count;
+	u16 all_key_length;
+} PACKED befs_btree_nodehead;
+
+#endif				/* _LINUX_BEFS_FS_TYPES */
diff --git a/fs/befs/btree.c b/fs/befs/btree.c
new file mode 100644
index 00000000000000..e71ade8a168501
--- /dev/null
+++ b/fs/befs/btree.c
@@ -0,0 +1,785 @@
+/*
+ * linux/fs/befs/btree.c
+ *
+ * Copyright (C) 2001-2002 Will Dyson <will_dyson@pobox.com>
+ *
+ * Licensed under the GNU GPL. See the file COPYING for details.
+ *
+ * 2002-02-05: Sergey S. Kostyliov added binary search withing
+ * 		btree nodes.
+ *
+ * Many thanks to:
+ *
+ * Dominic Giampaolo, author of "Practical File System
+ * Design with the Be File System", for such a helpful book.
+ * 
+ * Marcus J. Ranum, author of the b+tree package in 
+ * comp.sources.misc volume 10. This code is not copied from that
+ * work, but it is partially based on it.
+ *
+ * Makoto Kato, author of the original BeFS for linux filesystem
+ * driver.
+ */
+
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/mm.h>
+
+#include "befs.h"
+#include "btree.h"
+#include "datastream.h"
+#include "endian.h"
+
+/*
+ * The btree functions in this file are built on top of the
+ * datastream.c interface, which is in turn built on top of the
+ * io.c interface.
+ */
+
+/* Befs B+tree structure:
+ * 
+ * The first thing in the tree is the tree superblock. It tells you
+ * all kinds of usefull things about the tree, like where the rootnode
+ * is located, and the size of the nodes (always 1024 with current version
+ * of BeOS).
+ *
+ * The rest of the tree consists of a series of nodes. Nodes contain a header
+ * (struct befs_btree_nodehead), the packed key data, an array of shorts 
+ * containing the ending offsets for each of the keys, and an array of
+ * befs_off_t values. In interior nodes, the keys are the ending keys for 
+ * the childnode they point to, and the values are offsets into the 
+ * datastream containing the tree. 
+ */
+
+/* Note:
+ * 
+ * The book states 2 confusing things about befs b+trees. First, 
+ * it states that the overflow feild of node headers is used by internal nodes 
+ * to point to another node that "effectivly continues this one". Here is what 
+ * I belive that means. Each key in internal nodes points to another node that
+ * contains key values less than itself. Inspection reveals that the last key 
+ * in the internal node is not the last key in the index. Keys that are 
+ * greater than the last key in the internal node go into the overflow node. 
+ * I imagine there is a performance reason for this.
+ *
+ * Second, it states that the header of a btree node is sufficient to 
+ * distinguish internal nodes from leaf nodes. Without saying exactly how. 
+ * After figuring out the first, it becomes obvious that internal nodes have
+ * overflow nodes and leafnodes do not.
+ */
+
+/* 
+ * Currently, this code is only good for directory B+trees.
+ * In order to be used for other BFS indexes, it needs to be extended to handle
+ * duplicate keys and non-string keytypes (int32, int64, float, double).
+ */
+
+/*
+ * In memory structure of each btree node
+ */
+typedef struct {
+	befs_btree_nodehead head;	/* head of node converted to cpu byteorder */
+	struct buffer_head *bh;
+	befs_btree_nodehead *od_node;	/* on disk node */
+} befs_btree_node;
+
+/* local constants */
+const static befs_off_t befs_bt_inval = 0xffffffffffffffffULL;
+
+/* local functions */
+static int befs_btree_seekleaf(struct super_block *sb, befs_data_stream * ds,
+			       befs_btree_super * bt_super,
+			       befs_btree_node * this_node,
+			       befs_off_t * node_off);
+
+static int befs_bt_read_super(struct super_block *sb, befs_data_stream * ds,
+			      befs_btree_super * sup);
+
+static int befs_bt_read_node(struct super_block *sb, befs_data_stream * ds,
+			     befs_btree_node * node, befs_off_t node_off);
+
+static int befs_leafnode(befs_btree_node * node);
+
+static u16 *befs_bt_keylen_index(befs_btree_node * node);
+
+static befs_off_t *befs_bt_valarray(befs_btree_node * node);
+
+static char *befs_bt_keydata(befs_btree_node * node);
+
+static int befs_find_key(struct super_block *sb, befs_btree_node * node,
+			 const char *findkey, befs_off_t * value);
+
+static char *befs_bt_get_key(struct super_block *sb, befs_btree_node * node,
+			     int index, u16 * keylen);
+
+static int befs_compare_strings(const void *key1, int keylen1,
+				const void *key2, int keylen2);
+
+/**
+ * befs_bt_read_super - read in btree superblock convert to cpu byteorder
+ * @sb: Filesystem superblock
+ * @ds: Datastream to read from
+ * @sup: Buffer in which to place the btree superblock
+ *
+ * Calls befs_read_datastream to read in the btree superblock and
+ * makes sure it is in cpu byteorder, byteswapping if nessisary.
+ *
+ * On success, returns BEFS_OK and *@sup contains the btree superblock,
+ * in cpu byte order.
+ *
+ * On failure, BEFS_ERR is returned.
+ */
+static int
+befs_bt_read_super(struct super_block *sb, befs_data_stream * ds,
+		   befs_btree_super * sup)
+{
+	struct buffer_head *bh = NULL;
+	befs_btree_super *od_sup = NULL;
+
+	befs_debug(sb, "---> befs_btree_read_super()");
+
+	bh = befs_read_datastream(sb, ds, 0, NULL);
+
+	if (!bh) {
+		befs_error(sb, "Couldn't read index header.");
+		goto error;
+	}
+	od_sup = (befs_btree_super *) bh->b_data;
+	befs_dump_index_entry(sb, od_sup);
+
+	sup->magic = fs32_to_cpu(sb, od_sup->magic);
+	sup->node_size = fs32_to_cpu(sb, od_sup->node_size);
+	sup->max_depth = fs32_to_cpu(sb, od_sup->max_depth);
+	sup->data_type = fs32_to_cpu(sb, od_sup->data_type);
+	sup->root_node_ptr = fs64_to_cpu(sb, od_sup->root_node_ptr);
+	sup->free_node_ptr = fs64_to_cpu(sb, od_sup->free_node_ptr);
+	sup->max_size = fs64_to_cpu(sb, od_sup->max_size);
+
+	brelse(bh);
+	if (sup->magic != BEFS_BTREE_MAGIC) {
+		befs_error(sb, "Index header has bad magic.");
+		goto error;
+	}
+
+	befs_debug(sb, "<--- befs_btree_read_super()");
+	return BEFS_OK;
+
+      error:
+	befs_debug(sb, "<--- befs_btree_read_super() ERROR");
+	return BEFS_ERR;
+}
+
+/**
+ * befs_bt_read_node - read in btree node and convert to cpu byteorder
+ * @sb: Filesystem superblock
+ * @ds: Datastream to read from
+ * @node: Buffer in which to place the btree node
+ * @node_off: Starting offset (in bytes) of the node in @ds
+ *
+ * Calls befs_read_datastream to read in the indicated btree node and
+ * makes sure its header feilds are in cpu byteorder, byteswapping if 
+ * nessisary.
+ * Note: node->bh must be NULL when this function called first
+ * time. Don't forget brelse(node->bh) after last call.
+ *
+ * On success, returns BEFS_OK and *@node contains the btree node that
+ * starts at @node_off, with the node->head fields in cpu byte order.
+ *
+ * On failure, BEFS_ERR is returned.
+ */
+
+static int
+befs_bt_read_node(struct super_block *sb, befs_data_stream * ds,
+		  befs_btree_node * node, befs_off_t node_off)
+{
+	uint off = 0;
+
+	befs_debug(sb, "---> befs_bt_read_node()");
+
+	if (node->bh)
+		brelse(node->bh);
+
+	node->bh = befs_read_datastream(sb, ds, node_off, &off);
+	if (!node->bh) {
+		befs_error(sb, "befs_bt_read_node() failed to read "
+			   "node at %Lu", node_off);
+		befs_debug(sb, "<--- befs_bt_read_node() ERROR");
+
+		return BEFS_ERR;
+	}
+	node->od_node =
+	    (befs_btree_nodehead *) ((void *) node->bh->b_data + off);
+
+	befs_dump_index_node(sb, node->od_node);
+
+	node->head.left = fs64_to_cpu(sb, node->od_node->left);
+	node->head.right = fs64_to_cpu(sb, node->od_node->right);
+	node->head.overflow = fs64_to_cpu(sb, node->od_node->overflow);
+	node->head.all_key_count =
+	    fs16_to_cpu(sb, node->od_node->all_key_count);
+	node->head.all_key_length =
+	    fs16_to_cpu(sb, node->od_node->all_key_length);
+
+	befs_debug(sb, "<--- befs_btree_read_node()");
+	return BEFS_OK;
+}
+
+/**
+ * befs_btree_find - Find a key in a befs B+tree
+ * @sb: Filesystem superblock
+ * @ds: Datastream containing btree
+ * @key: Key string to lookup in btree
+ * @value: Value stored with @key
+ *
+ * On sucess, returns BEFS_OK and sets *@value to the value stored
+ * with @key (usually the disk block number of an inode).
+ *
+ * On failure, returns BEFS_ERR or BEFS_BT_NOT_FOUND.
+ * 
+ * Algorithm: 
+ *   Read the superblock and rootnode of the b+tree.
+ *   Drill down through the interior nodes using befs_find_key().
+ *   Once at the correct leaf node, use befs_find_key() again to get the
+ *   actuall value stored with the key.
+ */
+int
+befs_btree_find(struct super_block *sb, befs_data_stream * ds,
+		const char *key, befs_off_t * value)
+{
+	befs_btree_node *this_node = NULL;
+	befs_btree_super bt_super;
+	befs_off_t node_off;
+	int res;
+
+	befs_debug(sb, "---> befs_btree_find() Key: %s", key);
+
+	if (befs_bt_read_super(sb, ds, &bt_super) != BEFS_OK) {
+		befs_error(sb,
+			   "befs_btree_find() failed to read index superblock");
+		goto error;
+	}
+
+	this_node = (befs_btree_node *) kmalloc(sizeof (befs_btree_node),
+						GFP_NOFS);
+	if (!this_node) {
+		befs_error(sb, "befs_btree_find() failed to allocate %u "
+			   "bytes of memory", sizeof (befs_btree_node));
+		goto error;
+	}
+
+	this_node->bh = NULL;
+
+	/* read in root node */
+	node_off = bt_super.root_node_ptr;
+	if (befs_bt_read_node(sb, ds, this_node, node_off) != BEFS_OK) {
+		befs_error(sb, "befs_btree_find() failed to read "
+			   "node at %Lu", node_off);
+		goto error_alloc;
+	}
+
+	while (!befs_leafnode(this_node)) {
+		res = befs_find_key(sb, this_node, key, &node_off);
+		if (res == BEFS_BT_NOT_FOUND)
+			node_off = this_node->head.overflow;
+		/* if no match, go to overflow node */
+		if (befs_bt_read_node(sb, ds, this_node, node_off) != BEFS_OK) {
+			befs_error(sb, "befs_btree_find() failed to read "
+				   "node at %Lu", node_off);
+			goto error_alloc;
+		}
+	}
+
+	/* at the correct leaf node now */
+
+	res = befs_find_key(sb, this_node, key, value);
+
+	brelse(this_node->bh);
+	kfree(this_node);
+
+	if (res != BEFS_BT_MATCH) {
+		befs_debug(sb, "<--- befs_btree_find() Key %s not found", key);
+		*value = 0;
+		return BEFS_BT_NOT_FOUND;
+	}
+	befs_debug(sb, "<--- befs_btree_find() Found key %s, value %Lu",
+		   key, *value);
+	return BEFS_OK;
+
+      error_alloc:
+	kfree(this_node);
+      error:
+	*value = 0;
+	befs_debug(sb, "<--- befs_btree_find() ERROR");
+	return BEFS_ERR;
+}
+
+/**
+ * befs_find_key - Search for a key within a node
+ * @sb: Filesystem superblock
+ * @node: Node to find the key within
+ * @key: Keystring to search for
+ * @value: If key is found, the value stored with the key is put here
+ *
+ * finds exact match if one exists, and returns BEFS_BT_MATCH
+ * If no exact match, finds first key in node that is greater
+ * (alpabeticly) than the search key and returns BEFS_BT_PARMATCH
+ * (for partial match, I guess). Can you think of something better to
+ * call it?
+ *
+ * If no key was a match or greater than the search key, return
+ * BEFS_BT_NOT_FOUND.
+ *
+ * Use binary search instead of a linear.
+ */
+static int
+befs_find_key(struct super_block *sb, befs_btree_node * node,
+	      const char *findkey, befs_off_t * value)
+{
+	int first, last, mid;
+	int eq;
+	u16 keylen;
+	int findkey_len;
+	char *thiskey;
+	befs_off_t *valarray;
+
+	befs_debug(sb, "---> befs_find_key() %s", findkey);
+
+	*value = 0;
+
+	findkey_len = strlen(findkey);
+
+	/* if node can not contain key, just skeep this node */
+	last = node->head.all_key_count - 1;
+	thiskey = befs_bt_get_key(sb, node, last, &keylen);
+
+	eq = befs_compare_strings(thiskey, keylen, findkey, findkey_len);
+	if (eq < 0) {
+		befs_debug(sb, "<--- befs_find_key() %s not found", findkey);
+		return BEFS_BT_NOT_FOUND;
+	}
+
+	valarray = befs_bt_valarray(node);
+
+	/* simple binary search */
+	first = 0;
+	mid = 0;
+	while (last >= first) {
+		mid = (last + first) / 2;
+		befs_debug(sb, "first: %d, last: %d, mid: %d", first, last,
+			   mid);
+		thiskey = befs_bt_get_key(sb, node, mid, &keylen);
+		eq = befs_compare_strings(thiskey, keylen, findkey,
+					  findkey_len);
+		*value = fs64_to_cpu(sb, valarray[mid]);
+
+		if (eq == 0) {
+			befs_debug(sb, "<--- befs_find_key() found %s at %d",
+				   thiskey, mid);
+
+			return BEFS_BT_MATCH;
+		}
+		if (eq > 0)
+			last = mid - 1;
+		else
+			first = mid + 1;
+	}
+	if (eq < 0)
+		*value = fs64_to_cpu(sb, valarray[mid + 1]);
+	befs_debug(sb, "<--- befs_find_key() found %s at %d", thiskey, mid);
+	return BEFS_BT_PARMATCH;
+}
+
+/**
+ * befs_btree_read - Traverse leafnodes of a btree
+ * @sb: Filesystem superblock
+ * @ds: Datastream containing btree
+ * @key_no: Key number (alphabetical order) of key to read
+ * @bufsize: Size of the buffer to return key in
+ * @keybuf: Pointer to a buffer to put the key in
+ * @keysize: Length of the returned key
+ * @value: Value stored with the returned key
+ *
+ * Heres how it works: Key_no is the index of the key/value pair to 
+ * retun in keybuf/value.
+ * Bufsize is the size of keybuf (BEFS_NAME_LEN+1 is a good size). Keysize is 
+ * the number of charecters in the key (just a convience).
+ *
+ * Algorithm:
+ *   Get the first leafnode of the tree. See if the requested key is in that
+ *   node. If not, follow the node->right link to the next leafnode. Repeat 
+ *   until the (key_no)th key is found or the tree is out of keys.
+ */
+int
+befs_btree_read(struct super_block *sb, befs_data_stream * ds,
+		loff_t key_no, size_t bufsize, char *keybuf, size_t * keysize,
+		befs_off_t * value)
+{
+	befs_btree_node *this_node;
+	befs_btree_super bt_super;
+	befs_off_t node_off = 0;
+	int cur_key;
+	befs_off_t *valarray;
+	char *keystart;
+	u16 keylen;
+	int res;
+
+	uint key_sum = 0;
+
+	befs_debug(sb, "---> befs_btree_read()");
+
+	if (befs_bt_read_super(sb, ds, &bt_super) != BEFS_OK) {
+		befs_error(sb,
+			   "befs_btree_read() failed to read index superblock");
+		goto error;
+	}
+
+	if ((this_node = (befs_btree_node *)
+	     kmalloc(sizeof (befs_btree_node), GFP_NOFS)) == NULL) {
+		befs_error(sb, "befs_btree_read() failed to allocate %u "
+			   "bytes of memory", sizeof (befs_btree_node));
+		goto error;
+	}
+
+	node_off = bt_super.root_node_ptr;
+	this_node->bh = NULL;
+
+	/* seeks down to first leafnode, reads it into this_node */
+	res = befs_btree_seekleaf(sb, ds, &bt_super, this_node, &node_off);
+	if (res == BEFS_BT_EMPTY) {
+		brelse(this_node->bh);
+		kfree(this_node);
+		*value = 0;
+		*keysize = 0;
+		befs_debug(sb, "<--- befs_btree_read() Tree is EMPTY");
+		return BEFS_BT_EMPTY;
+	} else if (res == BEFS_ERR) {
+		goto error_alloc;
+	}
+
+	/* find the leaf node containing the key_no key */
+
+	while (key_sum + this_node->head.all_key_count <= key_no) {
+
+		/* no more nodes to look in: key_no is too large */
+		if (this_node->head.right == befs_bt_inval) {
+			*keysize = 0;
+			*value = 0;
+			befs_debug(sb,
+				   "<--- befs_btree_read() END of keys at %Lu",
+				   key_sum + this_node->head.all_key_count);
+			brelse(this_node->bh);
+			kfree(this_node);
+			return BEFS_BT_END;
+		}
+
+		key_sum += this_node->head.all_key_count;
+		node_off = this_node->head.right;
+
+		if (befs_bt_read_node(sb, ds, this_node, node_off) != BEFS_OK) {
+			befs_error(sb, "befs_btree_read() failed to read "
+				   "node at %Lu", node_off);
+			goto error_alloc;
+		}
+	}
+
+	/* how many keys into this_node is key_no */
+	cur_key = key_no - key_sum;
+
+	/* get pointers to datastructures within the node body */
+	valarray = befs_bt_valarray(this_node);
+
+	keystart = befs_bt_get_key(sb, this_node, cur_key, &keylen);
+
+	befs_debug(sb, "Read [%Lu,%d]: keysize %d", node_off, cur_key, keylen);
+
+	if (bufsize < keylen + 1) {
+		befs_error(sb, "befs_btree_read() keybuf too small (%u) "
+			   "for key of size %d", bufsize, keylen);
+		brelse(this_node->bh);
+		goto error_alloc;
+	};
+
+	strncpy(keybuf, keystart, keylen);
+	*value = fs64_to_cpu(sb, valarray[cur_key]);
+	*keysize = keylen;
+	keybuf[keylen] = '\0';
+
+	befs_debug(sb, "Read [%Lu,%d]: Key \"%.*s\", Value %Lu", node_off,
+		   cur_key, keylen, keybuf, *value);
+
+	brelse(this_node->bh);
+	kfree(this_node);
+
+	befs_debug(sb, "<--- befs_btree_read()");
+
+	return BEFS_OK;
+
+      error_alloc:
+	kfree(this_node);
+
+      error:
+	*keysize = 0;
+	*value = 0;
+	befs_debug(sb, "<--- befs_btree_read() ERROR");
+	return BEFS_ERR;
+}
+
+/**
+ * befs_btree_seekleaf - Find the first leafnode in the btree
+ * @sb: Filesystem superblock
+ * @ds: Datastream containing btree
+ * @bt_super: Pointer to the uperblock of the btree
+ * @this_node: Buffer to return the leafnode in
+ * @node_off: Pointer to offset of current node within datastream. Modified
+ * 		by the function.
+ *
+ *
+ * Helper function for btree traverse. Moves the current position to the 
+ * start of the first leaf node.
+ *
+ * Also checks for an empty tree. If there are no keys, returns BEFS_BT_EMPTY.
+ */
+static int
+befs_btree_seekleaf(struct super_block *sb, befs_data_stream * ds,
+		    befs_btree_super * bt_super, befs_btree_node * this_node,
+		    befs_off_t * node_off)
+{
+
+	befs_debug(sb, "---> befs_btree_seekleaf()");
+
+	if (befs_bt_read_node(sb, ds, this_node, *node_off) != BEFS_OK) {
+		befs_error(sb, "befs_btree_seekleaf() failed to read "
+			   "node at %Lu", *node_off);
+		goto error;
+	}
+	befs_debug(sb, "Seekleaf to root node %Lu", *node_off);
+
+	if (this_node->head.all_key_count == 0 && befs_leafnode(this_node)) {
+		befs_debug(sb, "<--- befs_btree_seekleaf() Tree is EMPTY");
+		return BEFS_BT_EMPTY;
+	}
+
+	while (!befs_leafnode(this_node)) {
+
+		if (this_node->head.all_key_count == 0) {
+			befs_debug(sb, "befs_btree_seekleaf() encountered "
+				   "an empty interior node: %Lu. Using Overflow "
+				   "node: %Lu", *node_off,
+				   this_node->head.overflow);
+			*node_off = this_node->head.overflow;
+		} else {
+			befs_off_t *valarray = befs_bt_valarray(this_node);
+			*node_off = fs64_to_cpu(sb, valarray[0]);
+		}
+		if (befs_bt_read_node(sb, ds, this_node, *node_off) != BEFS_OK) {
+			befs_error(sb, "befs_btree_seekleaf() failed to read "
+				   "node at %Lu", *node_off);
+			goto error;
+		}
+
+		befs_debug(sb, "Seekleaf to child node %Lu", *node_off);
+	}
+	befs_debug(sb, "Node %Lu is a leaf node", *node_off);
+
+	return BEFS_OK;
+
+      error:
+	befs_debug(sb, "<--- befs_btree_seekleaf() ERROR");
+	return BEFS_ERR;
+}
+
+/**
+ * befs_leafnode - Determine if the btree node is a leaf node or an 
+ * interior node
+ * @node: Pointer to node structure to test
+ * 
+ * Return 1 if leaf, 0 if interior
+ */
+static int
+befs_leafnode(befs_btree_node * node)
+{
+	/* all interior nodes (and only interior nodes) have an overflow node */
+	if (node->head.overflow == befs_bt_inval)
+		return 1;
+	else
+		return 0;
+}
+
+/**
+ * befs_bt_keylen_index - Finds start of keylen index in a node
+ * @node: Pointer to the node structure to find the keylen index within
+ *
+ * Returns a pointer to the start of the key length index array
+ * of the B+tree node *@node
+ *
+ * "The length of all the keys in the node is added to the size of the
+ * header and then rounded up to a multiple of four to get the begining
+ * of the key length index" (p.88, practical filesystem design).
+ *
+ * Exept that rounding up to 8 works, and rounding up to 4 doesn't.
+ */
+static u16 *
+befs_bt_keylen_index(befs_btree_node * node)
+{
+	const int keylen_align = 8;
+	unsigned long int off =
+	    (sizeof (befs_btree_nodehead) + node->head.all_key_length);
+	ulong tmp = off % keylen_align;
+
+	if (tmp)
+		off += keylen_align - tmp;
+
+	return (u16 *) ((void *) node->od_node + off);
+}
+
+/**
+ * befs_bt_valarray - Finds the start of value array in a node
+ * @node: Pointer to the node structure to find the value array within
+ *
+ * Returns a pointer to the start of the value array
+ * of the node pointed to by the node header
+ */
+static befs_off_t *
+befs_bt_valarray(befs_btree_node * node)
+{
+	void *keylen_index_start = (void *) befs_bt_keylen_index(node);
+	size_t keylen_index_size = node->head.all_key_count * sizeof (u16);
+
+	return (befs_off_t *) (keylen_index_start + keylen_index_size);
+}
+
+/**
+ * befs_bt_keydata - Finds start of keydata array in a node
+ * @node: Pointer to the node structure to find the keydata array within
+ *
+ * Returns a pointer to the start of the keydata array
+ * of the node pointed to by the node header 
+ */
+static char *
+befs_bt_keydata(befs_btree_node * node)
+{
+	return (char *) ((void *) node->od_node + sizeof (befs_btree_nodehead));
+}
+
+/**
+ * befs_bt_get_key - returns a pointer to the start of a key
+ * @sb: filesystem superblock
+ * @node: node in which to look for the key
+ * @index: the index of the key to get
+ * @keylen: modified to be the length of the key at @index
+ *
+ * Returns a valid pointer into @node on success.
+ * Returns NULL on failure (bad input) and sets *@keylen = 0
+ */
+static char *
+befs_bt_get_key(struct super_block *sb, befs_btree_node * node,
+		int index, u16 * keylen)
+{
+	int prev_key_end;
+	char *keystart;
+	u16 *keylen_index;
+
+	if (index < 0 || index > node->head.all_key_count) {
+		*keylen = 0;
+		return NULL;
+	}
+
+	keystart = befs_bt_keydata(node);
+	keylen_index = befs_bt_keylen_index(node);
+
+	if (index == 0)
+		prev_key_end = 0;
+	else
+		prev_key_end = fs16_to_cpu(sb, keylen_index[index - 1]);
+
+	*keylen = fs16_to_cpu(sb, keylen_index[index]) - prev_key_end;
+
+	return keystart + prev_key_end;
+}
+
+/**
+ * befs_compare_strings - compare two strings
+ * @key1: pointer to the first key to be compared 
+ * @keylen1: length in bytes of key1
+ * @key2: pointer to the second key to be compared
+ * @kelen2: lenght in bytes of key2
+ *
+ * Returns 0 if @key1 and @key2 are equal.
+ * Returns >0 if @key1 is greater.
+ * Returns <0 if @key2 is greater..
+ */
+static int
+befs_compare_strings(const void *key1, int keylen1,
+		     const void *key2, int keylen2)
+{
+	int len = min_t(int, keylen1, keylen2);
+	int result = strncmp(key1, key2, len);
+	if (result == 0)
+		result = keylen1 - keylen2;
+	return result;
+}
+
+/* These will be used for non-string keyed btrees */
+#if 0
+static int
+btree_compare_int32(cont void *key1, int keylen1, const void *key2, int keylen2)
+{
+	return *(int32_t *) key1 - *(int32_t *) key2;
+}
+
+static int
+btree_compare_uint32(cont void *key1, int keylen1,
+		     const void *key2, int keylen2)
+{
+	if (*(u_int32_t *) key1 == *(u_int32_t *) key2)
+		return 0;
+	else if (*(u_int32_t *) key1 > *(u_int32_t *) key2)
+		return 1;
+
+	return -1;
+}
+static int
+btree_compare_int64(cont void *key1, int keylen1, const void *key2, int keylen2)
+{
+	if (*(int64_t *) key1 == *(int64_t *) key2)
+		return 0;
+	else if (*(int64_t *) key1 > *(int64_t *) key2)
+		return 1;
+
+	return -1;
+}
+
+static int
+btree_compare_uint64(cont void *key1, int keylen1,
+		     const void *key2, int keylen2)
+{
+	if (*(u_int64_t *) key1 == *(u_int64_t *) key2)
+		return 0;
+	else if (*(u_int64_t *) key1 > *(u_int64_t *) key2)
+		return 1;
+
+	return -1;
+}
+
+static int
+btree_compare_float(cont void *key1, int keylen1, const void *key2, int keylen2)
+{
+	float result = *(float *) key1 - *(float *) key2;
+	if (result == 0.0f)
+		return 0;
+
+	return (result < 0.0f) ? -1 : 1;
+}
+
+static int
+btree_compare_double(cont void *key1, int keylen1,
+		     const void *key2, int keylen2)
+{
+	double result = *(double *) key1 - *(double *) key2;
+	if (result == 0.0)
+		return 0;
+
+	return (result < 0.0) ? -1 : 1;
+}
+#endif				//0
diff --git a/fs/befs/btree.h b/fs/befs/btree.h
new file mode 100644
index 00000000000000..9aa43427ddc746
--- /dev/null
+++ b/fs/befs/btree.h
@@ -0,0 +1,11 @@
+/*
+ * btree.h
+ * 
+ */
+
+int befs_btree_find(struct super_block *sb, befs_data_stream * ds,
+		    const char *key, befs_off_t * value);
+
+int befs_btree_read(struct super_block *sb, befs_data_stream * ds,
+		    loff_t key_no, size_t bufsize, char *keybuf,
+		    size_t * keysize, befs_off_t * value);
diff --git a/fs/befs/datastream.c b/fs/befs/datastream.c
new file mode 100644
index 00000000000000..4467d22d5387a4
--- /dev/null
+++ b/fs/befs/datastream.c
@@ -0,0 +1,528 @@
+/*
+ * linux/fs/befs/datastream.c
+ *
+ * Copyright (C) 2001 Will Dyson <will_dyson@pobox.com>
+ *
+ * Based on portions of file.c by Makoto Kato <m_kato@ga2.so-net.ne.jp>
+ *
+ * Many thanks to Dominic Giampaolo, author of "Practical File System
+ * Design with the Be File System", for such a helpful book.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/version.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+
+#include "befs.h"
+#include "datastream.h"
+#include "io.h"
+#include "endian.h"
+
+const befs_inode_addr BAD_IADDR = { 0, 0, 0 };
+
+static int befs_find_brun_direct(struct super_block *sb,
+				 befs_data_stream * data,
+				 befs_blocknr_t blockno, befs_block_run * run);
+
+static int befs_find_brun_indirect(struct super_block *sb,
+				   befs_data_stream * data,
+				   befs_blocknr_t blockno,
+				   befs_block_run * run);
+
+static int befs_find_brun_dblindirect(struct super_block *sb,
+				      befs_data_stream * data,
+				      befs_blocknr_t blockno,
+				      befs_block_run * run);
+
+/**
+ * befs_read_datastream - get buffer_head containing data, starting from pos.
+ * @sb: Filesystem superblock
+ * @ds: datastrem to find data with
+ * @pos: start of data
+ * @off: offset of data in buffer_head->b_data
+ *
+ * Returns pointer to buffer_head containing data starting with offset @off,
+ * if you don't need to know offset just set @off = NULL.
+ */
+struct buffer_head *
+befs_read_datastream(struct super_block *sb, befs_data_stream * ds,
+		     befs_off_t pos, uint * off)
+{
+	struct buffer_head *bh = NULL;
+	befs_block_run run;
+	befs_blocknr_t block;	/* block coresponding to pos */
+
+	befs_debug(sb, "---> befs_read_datastream() %Lu", pos);
+	block = pos >> BEFS_SB(sb)->block_shift;
+	if (off)
+		*off = pos - (block << BEFS_SB(sb)->block_shift);
+
+	if (befs_fblock2brun(sb, ds, block, &run) != BEFS_OK) {
+		befs_error(sb, "BeFS: Error finding disk addr of block %lu",
+			   block);
+		befs_debug(sb, "<--- befs_read_datastream() ERROR");
+		return NULL;
+	}
+	bh = befs_bread_iaddr(sb, run);
+	if (!bh) {
+		befs_error(sb, "BeFS: Error reading block %lu from datastream",
+			   block);
+		return NULL;
+	}
+
+	befs_debug(sb, "<--- befs_read_datastream() read data, starting at %Lu",
+		   pos);
+
+	return bh;
+}
+
+/*
+ * Takes a file position and gives back a brun who's starting block
+ * is block number fblock of the file.
+ * 
+ * Returns BEFS_OK or BEFS_ERR.
+ * 
+ * Calls specialized functions for each of the three possible
+ * datastream regions.
+ *
+ * 2001-11-15 Will Dyson
+ */
+int
+befs_fblock2brun(struct super_block *sb, befs_data_stream * data,
+		 befs_blocknr_t fblock, befs_block_run * run)
+{
+	int err;
+	befs_off_t pos = fblock << BEFS_SB(sb)->block_shift;
+
+	if (pos < data->max_direct_range) {
+		err = befs_find_brun_direct(sb, data, fblock, run);
+
+	} else if (pos < data->max_indirect_range) {
+		err = befs_find_brun_indirect(sb, data, fblock, run);
+
+	} else if (pos < data->max_double_indirect_range) {
+		err = befs_find_brun_dblindirect(sb, data, fblock, run);
+
+	} else {
+		befs_error(sb,
+			   "befs_fblock2brun() was asked to find block %lu, "
+			   "which is not mapped by the datastream\n", fblock);
+		err = BEFS_ERR;
+	}
+	return err;
+}
+
+/**
+ * befs_read_lsmylink - read long symlink from datastream.
+ * @sb: Filesystem superblock 
+ * @ds: Datastrem to read from
+ * @buf: Buffer in wich to place long symlink data
+ * @len: Length of the long symlink in bytes
+ *
+ * Returns the number of bytes read
+ */
+size_t
+befs_read_lsymlink(struct super_block * sb, befs_data_stream * ds, void *buff,
+		   befs_off_t len)
+{
+	befs_off_t bytes_read = 0;	/* bytes readed */
+	u16 plen;
+	struct buffer_head *bh = NULL;
+	befs_debug(sb, "---> befs_read_lsymlink() length: %Lu", len);
+
+	while (bytes_read < len) {
+		bh = befs_read_datastream(sb, ds, bytes_read, NULL);
+		if (!bh) {
+			befs_error(sb, "BeFS: Error reading datastream block "
+				   "starting from %Lu", bytes_read);
+			befs_debug(sb, "<--- befs_read_lsymlink() ERROR");
+			return bytes_read;
+
+		}
+		plen = ((bytes_read + BEFS_SB(sb)->block_size) < len) ?
+		    BEFS_SB(sb)->block_size : len - bytes_read;
+		memcpy(buff + bytes_read, bh->b_data, plen);
+		brelse(bh);
+		bytes_read += plen;
+	}
+
+	befs_debug(sb, "<--- befs_read_lsymlink() read %u bytes", bytes_read);
+	return bytes_read;
+}
+
+/**
+ * befs_count_blocks - blocks used by a file
+ * @sb: Filesystem superblock
+ * @ds: Datastream of the file
+ *
+ * Counts the number of fs blocks that the file represented by
+ * inode occupies on the filesystem, counting both regular file
+ * data and filesystem metadata (and eventually attribute data
+ * when we support attributes)
+*/
+
+befs_blocknr_t
+befs_count_blocks(struct super_block * sb, befs_data_stream * ds)
+{
+	befs_blocknr_t blocks;
+	befs_blocknr_t datablocks;	/* File data blocks */
+	befs_blocknr_t metablocks;	/* FS metadata blocks */
+	befs_sb_info *befs_sb = BEFS_SB(sb);
+
+	befs_debug(sb, "---> befs_count_blocks()");
+
+	datablocks = ds->size >> befs_sb->block_shift;
+	if (ds->size & (befs_sb->block_size - 1))
+		datablocks += 1;
+
+	metablocks = 1;		/* Start with 1 block for inode */
+
+	/* Size of indirect block */
+	if (ds->size > ds->max_direct_range)
+		metablocks += ds->indirect.len;
+
+	/*
+	   Double indir block, plus all the indirect blocks it mapps
+	   In the double-indirect range, all block runs of data are
+	   BEFS_DBLINDIR_BRUN_LEN blocks long. Therefore, we know 
+	   how many data block runs are in the double-indirect region,
+	   and from that we know how many indirect blocks it takes to
+	   map them. We assume that the indirect blocks are also
+	   BEFS_DBLINDIR_BRUN_LEN blocks long.
+	 */
+	if (ds->size > ds->max_indirect_range && ds->max_indirect_range != 0) {
+		uint dbl_bytes;
+		uint dbl_bruns;
+		uint indirblocks;
+
+		dbl_bytes =
+		    ds->max_double_indirect_range - ds->max_indirect_range;
+		dbl_bruns =
+		    dbl_bytes / (befs_sb->block_size * BEFS_DBLINDIR_BRUN_LEN);
+		indirblocks = dbl_bruns / befs_iaddrs_per_block(sb);
+
+		metablocks += ds->double_indirect.len;
+		metablocks += indirblocks;
+	}
+
+	blocks = datablocks + metablocks;
+	befs_debug(sb, "<--- befs_count_blocks() %u blocks", blocks);
+
+	return blocks;
+}
+
+/*
+	Finds the block run that starts at file block number blockno
+	in the file represented by the datastream data, if that 
+	blockno is in the direct region of the datastream.
+	
+	sb: the superblock
+	data: the datastream
+	blockno: the blocknumber to find
+	run: The found run is passed back through this pointer
+	
+	Return value is BEFS_OK if the blockrun is found, BEFS_ERR
+	otherwise.
+	
+	Algorithm:
+	Linear search. Checks each element of array[] to see if it
+	contains the blockno-th filesystem block. This is nessisary
+	because the block runs map variable amounts of data. Simply
+	keeps a count of the number of blocks searched so far (sum),
+	incrementing this by the length of each block run as we come
+	across it. Adds sum to *count before returning (this is so
+	you can search multiple arrays that are logicaly one array,
+	as in the indirect region code).
+	
+	When/if blockno is found, if blockno is inside of a block 
+	run as stored on disk, we offset the start and lenght members 
+	of the block run, so that blockno is the start and len is
+	still valid (the run ends in the same place).
+	
+	2001-11-15 Will Dyson
+*/
+static int
+befs_find_brun_direct(struct super_block *sb, befs_data_stream * data,
+		      befs_blocknr_t blockno, befs_block_run * run)
+{
+	int i;
+	befs_block_run *array = data->direct;
+	befs_blocknr_t sum;
+	befs_blocknr_t max_block =
+	    data->max_direct_range >> BEFS_SB(sb)->block_shift;
+
+	befs_debug(sb, "---> befs_find_brun_direct(), find %lu", blockno);
+
+	if (blockno > max_block) {
+		befs_error(sb, "befs_find_brun_direct() passed block outside of"
+			   "direct region");
+		return BEFS_ERR;
+	}
+
+	for (i = 0, sum = 0; i < BEFS_NUM_DIRECT_BLOCKS;
+	     sum += array[i].len, i++) {
+		if (blockno >= sum && blockno < sum + (array[i].len)) {
+			int offset = blockno - sum;
+			run->allocation_group = array[i].allocation_group;
+			run->start = array[i].start + offset;
+			run->len = array[i].len - offset;
+
+			befs_debug(sb, "---> befs_find_brun_direct(), "
+				   "found %lu at direct[%d]", blockno, i);
+			return BEFS_OK;
+		}
+	}
+
+	befs_debug(sb, "---> befs_find_brun_direct() ERROR");
+	return BEFS_ERR;
+}
+
+/*
+	Finds the block run that starts at file block number blockno
+	in the file represented by the datastream data, if that 
+	blockno is in the indirect region of the datastream.
+	
+	sb: the superblock
+	data: the datastream
+	blockno: the blocknumber to find
+	run: The found run is passed back through this pointer
+	
+	Return value is BEFS_OK if the blockrun is found, BEFS_ERR
+	otherwise.
+	
+	Algorithm:
+	For each block in the indirect run of the datastream, read
+	it in and search through it for	search_blk.
+	
+	XXX:
+	Really should check to make sure blockno is inside indirect
+	region.
+	
+	2001-11-15 Will Dyson
+*/
+static int
+befs_find_brun_indirect(struct super_block *sb,
+			befs_data_stream * data, befs_blocknr_t blockno,
+			befs_block_run * run)
+{
+	int i, j;
+	befs_blocknr_t sum = 0;
+	befs_blocknr_t indir_start_blk;
+	befs_blocknr_t search_blk;
+	struct buffer_head *indirblock;
+	befs_block_run *array;
+
+	befs_block_run indirect = data->indirect;
+	befs_blocknr_t indirblockno = iaddr2blockno(sb, &indirect);
+	int arraylen = befs_iaddrs_per_block(sb);
+
+	befs_debug(sb, "---> befs_find_brun_indirect(), find %lu", blockno);
+
+	indir_start_blk = data->max_direct_range >> BEFS_SB(sb)->block_shift;
+	search_blk = blockno - indir_start_blk;
+
+	/* Examine blocks of the indirect run one at a time */
+	for (i = 0; i < indirect.len; i++) {
+		indirblock = befs_bread(sb, indirblockno + i);
+		if (indirblock == NULL) {
+			befs_debug(sb,
+				   "---> befs_find_brun_indirect() failed to "
+				   "read disk block %lu from the indirect brun",
+				   indirblockno + i);
+			return BEFS_ERR;
+		}
+
+		array = (befs_block_run *) indirblock->b_data;
+
+		for (j = 0; j < arraylen; ++j) {
+			int len = fs16_to_cpu(sb, array[j].len);
+
+			if (search_blk >= sum && search_blk < sum + len) {
+				int offset = search_blk - sum;
+				run->allocation_group =
+				    fs32_to_cpu(sb, array[j].allocation_group);
+				run->start =
+				    fs16_to_cpu(sb, array[j].start) + offset;
+				run->len =
+				    fs16_to_cpu(sb, array[j].len) - offset;
+
+				brelse(indirblock);
+				befs_debug(sb,
+					   "<--- befs_find_brun_indirect() found "
+					   "file block %lu at indirect[%d]",
+					   blockno, j + (i * arraylen));
+				return BEFS_OK;
+			}
+			sum += len;
+		}
+
+		brelse(indirblock);
+	}
+
+	/* Only fallthrough is an error */
+	befs_error(sb, "BeFS: befs_find_brun_indirect() failed to find "
+		   "file block %lu", blockno);
+
+	befs_debug(sb, "<--- befs_find_brun_indirect() ERROR");
+	return BEFS_ERR;
+}
+
+/*
+	Finds the block run that starts at file block number blockno
+	in the file represented by the datastream data, if that 
+	blockno is in the double-indirect region of the datastream.
+	
+	sb: the superblock
+	data: the datastream
+	blockno: the blocknumber to find
+	run: The found run is passed back through this pointer
+	
+	Return value is BEFS_OK if the blockrun is found, BEFS_ERR
+	otherwise.
+	
+	Algorithm:
+	The block runs in the double-indirect region are different.
+	They are always allocated 4 fs blocks at a time, so each
+	block run maps a constant amount of file data. This means
+	that we can directly calculate how many block runs into the
+	double-indirect region we need to go to get to the one that
+	maps a particular filesystem block.
+	
+	We do this in two stages. First we calculate which of the
+	inode addresses in the double-indirect block will point us
+	to the indirect block that contains the mapping for the data,
+	then we calculate which of the inode addresses in that 
+	indirect block maps the data block we are after.
+	
+	Oh, and once we've done that, we actually read in the blocks 
+	that contain the inode addresses we calculated above. Even 
+	though the double-indirect run may be several blocks long, 
+	we can calculate which of those blocks will contain the index
+	we are after and only read that one. We then follow it to 
+	the indirect block and perform a  similar process to find
+	the actual block run that maps the data block we are interested
+	in.
+	
+	Then we offset the run as in befs_find_brun_array() and we are 
+	done.
+	
+	2001-11-15 Will Dyson
+*/
+static int
+befs_find_brun_dblindirect(struct super_block *sb,
+			   befs_data_stream * data, befs_blocknr_t blockno,
+			   befs_block_run * run)
+{
+	int dblindir_indx;
+	int indir_indx;
+	int offset;
+	int dbl_which_block;
+	int which_block;
+	int dbl_block_indx;
+	int block_indx;
+	off_t dblindir_leftover;
+	befs_blocknr_t blockno_at_run_start;
+	struct buffer_head *dbl_indir_block;
+	struct buffer_head *indir_block;
+	befs_block_run indir_run;
+	befs_inode_addr *iaddr_array = NULL;
+	befs_sb_info *befs_sb = BEFS_SB(sb);
+
+	befs_blocknr_t indir_start_blk =
+	    data->max_indirect_range >> befs_sb->block_shift;
+
+	off_t dbl_indir_off = blockno - indir_start_blk;
+
+	/* number of data blocks mapped by each of the iaddrs in
+	 * the indirect block pointed to by the double indirect block
+	 */
+	size_t iblklen = BEFS_DBLINDIR_BRUN_LEN;
+
+	/* number of data blocks mapped by each of the iaddrs in
+	 * the double indirect block
+	 */
+	size_t diblklen = iblklen * befs_iaddrs_per_block(sb)
+	    * BEFS_DBLINDIR_BRUN_LEN;
+
+	befs_debug(sb, "---> befs_find_brun_dblindirect() find %lu", blockno);
+
+	/* First, discover which of the double_indir->indir blocks
+	 * contains pos. Then figure out how much of pos that
+	 * accounted for. Then discover which of the iaddrs in
+	 * the indirect block contains pos.
+	 */
+
+	dblindir_indx = dbl_indir_off / diblklen;
+	dblindir_leftover = dbl_indir_off % diblklen;
+	indir_indx = dblindir_leftover / diblklen;
+
+	/* Read double indirect block */
+	dbl_which_block = dblindir_indx / befs_iaddrs_per_block(sb);
+	if (dbl_which_block > data->double_indirect.len) {
+		befs_error(sb, "The double-indirect index calculated by "
+			   "befs_read_brun_dblindirect(), %d, is outside the range "
+			   "of the double-indirect block", dblindir_indx);
+		return BEFS_ERR;
+	}
+
+	dbl_indir_block = befs_bread(sb,
+				     iaddr2blockno(sb, &data->double_indirect) +
+				     dbl_which_block);
+	if (dbl_indir_block == NULL) {
+		befs_error(sb, "befs_read_brun_dblindirect() couldn't read the "
+			   "double-indirect block at blockno %lu",
+			   iaddr2blockno(sb,
+					 &data->double_indirect) +
+			   dbl_which_block);
+		brelse(dbl_indir_block);
+		return BEFS_ERR;
+	}
+
+	dbl_block_indx =
+	    dblindir_indx - (dbl_which_block * befs_iaddrs_per_block(sb));
+	iaddr_array = (befs_inode_addr *) dbl_indir_block->b_data;
+	indir_run = fsrun_to_cpu(sb, iaddr_array[dbl_block_indx]);
+	brelse(dbl_indir_block);
+	iaddr_array = NULL;
+
+	/* Read indirect block */
+	which_block = indir_indx / befs_iaddrs_per_block(sb);
+	if (which_block > indir_run.len) {
+		befs_error(sb, "The indirect index calculated by "
+			   "befs_read_brun_dblindirect(), %d, is outside the range "
+			   "of the indirect block", indir_indx);
+		return BEFS_ERR;
+	}
+
+	indir_block =
+	    befs_bread(sb, iaddr2blockno(sb, &indir_run) + which_block);
+	if (indir_block == NULL) {
+		befs_error(sb, "befs_read_brun_dblindirect() couldn't read the "
+			   "indirect block at blockno %lu",
+			   iaddr2blockno(sb, &indir_run) + which_block);
+		brelse(indir_block);
+		return BEFS_ERR;
+	}
+
+	block_indx = indir_indx - (which_block * befs_iaddrs_per_block(sb));
+	iaddr_array = (befs_inode_addr *) indir_block->b_data;
+	*run = fsrun_to_cpu(sb, iaddr_array[block_indx]);
+	brelse(indir_block);
+	iaddr_array = NULL;
+
+	blockno_at_run_start = indir_start_blk;
+	blockno_at_run_start += diblklen * dblindir_indx;
+	blockno_at_run_start += iblklen * indir_indx;
+	offset = blockno - blockno_at_run_start;
+
+	run->start += offset;
+	run->len -= offset;
+
+	befs_debug(sb, "Found file block %lu in double_indirect[%d][%d],"
+		   " double_indirect_leftover = %lu",
+		   blockno, dblindir_indx, indir_indx, dblindir_leftover);
+
+	return BEFS_OK;
+}
diff --git a/fs/befs/datastream.h b/fs/befs/datastream.h
new file mode 100644
index 00000000000000..20612d04390609
--- /dev/null
+++ b/fs/befs/datastream.h
@@ -0,0 +1,18 @@
+/*
+ * datastream.h
+ *
+ */
+
+struct buffer_head *befs_read_datastream(struct super_block *sb,
+					 befs_data_stream * ds, befs_off_t pos,
+					 uint * off);
+
+int befs_fblock2brun(struct super_block *sb, befs_data_stream * data,
+		     befs_blocknr_t fblock, befs_block_run * run);
+
+size_t befs_read_lsymlink(struct super_block *sb, befs_data_stream * data,
+			  void *buff, befs_off_t len);
+
+befs_blocknr_t befs_count_blocks(struct super_block *sb, befs_data_stream * ds);
+
+extern const befs_inode_addr BAD_IADDR;
diff --git a/fs/befs/debug.c b/fs/befs/debug.c
new file mode 100644
index 00000000000000..e54bca818af240
--- /dev/null
+++ b/fs/befs/debug.c
@@ -0,0 +1,263 @@
+/*
+ *  linux/fs/befs/debug.c
+ * 
+ * Copyright (C) 2001 Will Dyson (will_dyson at pobox.com)
+ *
+ * With help from the ntfs-tng driver by Anton Altparmakov
+ *
+ * Copyright (C) 1999  Makoto Kato (m_kato@ga2.so-net.ne.jp)
+ *
+ * debug functions
+ */
+
+#ifdef __KERNEL__
+
+#include <stdarg.h>
+#include <linux/string.h>
+#include <linux/spinlock.h>
+#include <linux/kernel.h>
+#include <linux/fs.h>
+
+#endif				/* __KERNEL__ */
+
+#include "befs.h"
+#include "endian.h"
+
+#define ERRBUFSIZE 1024
+
+void
+befs_error(const struct super_block *sb, const char *fmt, ...)
+{
+	va_list args;
+	char err_buf[ERRBUFSIZE];
+
+	va_start(args, fmt);
+	vsnprintf(err_buf, ERRBUFSIZE, fmt, args);
+	va_end(args);
+
+	printk(KERN_ERR "BeFS(%s): %s\n", bdevname(sb->s_dev), err_buf);
+
+	befs_debug(sb, err_buf);
+}
+
+void
+befs_warning(const struct super_block *sb, const char *fmt, ...)
+{
+	va_list args;
+	char err_buf[ERRBUFSIZE];
+
+	va_start(args, fmt);
+	vsnprintf(err_buf, ERRBUFSIZE, fmt, args);
+	va_end(args);
+
+	printk(KERN_WARNING "BeFS(%s): %s\n", bdevname(sb->s_dev), err_buf);
+
+	befs_debug(sb, err_buf);
+}
+
+void
+befs_debug(const struct super_block *sb, const char *fmt, ...)
+{
+#ifdef CONFIG_BEFS_DEBUG
+
+	va_list args;
+	char err_buf[ERRBUFSIZE];
+
+	if (BEFS_SB(sb)->mount_opts.debug) {
+		va_start(args, fmt);
+		vsnprintf(err_buf, ERRBUFSIZE, fmt, args);
+		va_end(args);
+
+		printk(KERN_DEBUG "BeFS(%s): %s\n",
+		       bdevname(sb->s_dev), err_buf);
+	}
+#endif				//CONFIG_BEFS_DEBUG
+}
+
+void
+befs_dump_inode(const struct super_block *sb, befs_inode * inode)
+{
+#ifdef CONFIG_BEFS_DEBUG
+
+	befs_block_run tmp_run;
+
+	befs_debug(sb, "befs_inode infomation");
+
+	befs_debug(sb, "  magic1 %08x", fs32_to_cpu(sb, inode->magic1));
+
+	tmp_run = fsrun_to_cpu(sb, inode->inode_num);
+	befs_debug(sb, "  inode_num %u, %hu, %hu",
+		   tmp_run.allocation_group, tmp_run.start, tmp_run.len);
+
+	befs_debug(sb, "  uid %u", fs32_to_cpu(sb, inode->uid));
+	befs_debug(sb, "  gid %u", fs32_to_cpu(sb, inode->gid));
+	befs_debug(sb, "  mode %08x", fs32_to_cpu(sb, inode->mode));
+	befs_debug(sb, "  flags %08x", fs32_to_cpu(sb, inode->flags));
+	befs_debug(sb, "  create_time %Lu",
+		   fs64_to_cpu(sb, inode->create_time));
+	befs_debug(sb, "  last_modified_time %Lu",
+		   fs64_to_cpu(sb, inode->last_modified_time));
+
+	tmp_run = fsrun_to_cpu(sb, inode->parent);
+	befs_debug(sb, "  parent [%u, %hu, %hu]",
+		   tmp_run.allocation_group, tmp_run.start, tmp_run.len);
+
+	tmp_run = fsrun_to_cpu(sb, inode->attributes);
+	befs_debug(sb, "  attributes [%u, %hu, %hu]",
+		   tmp_run.allocation_group, tmp_run.start, tmp_run.len);
+
+	befs_debug(sb, "  type %08x", fs32_to_cpu(sb, inode->type));
+	befs_debug(sb, "  inode_size %u", fs32_to_cpu(sb, inode->inode_size));
+
+	if (S_ISLNK(inode->mode)) {
+		befs_debug(sb, "  Symbolic link [%s]", inode->data.symlink);
+	} else {
+		int i;
+
+		for (i = 0; i < BEFS_NUM_DIRECT_BLOCKS; i++) {
+			tmp_run =
+			    fsrun_to_cpu(sb, inode->data.datastream.direct[i]);
+			befs_debug(sb, "  direct %d [%u, %hu, %hu]", i,
+				   tmp_run.allocation_group, tmp_run.start,
+				   tmp_run.len);
+		}
+		befs_debug(sb, "  max_direct_range %Lu",
+			   fs64_to_cpu(sb,
+				       inode->data.datastream.
+				       max_direct_range));
+
+		tmp_run = fsrun_to_cpu(sb, inode->data.datastream.indirect);
+		befs_debug(sb, "  indirect [%u, %hu, %hu]",
+			   tmp_run.allocation_group,
+			   tmp_run.start, tmp_run.len);
+
+		befs_debug(sb, "  max_indirect_range %Lu",
+			   fs64_to_cpu(sb,
+				       inode->data.datastream.
+				       max_indirect_range));
+
+		tmp_run =
+		    fsrun_to_cpu(sb, inode->data.datastream.double_indirect);
+		befs_debug(sb, "  double indirect [%u, %hu, %hu]",
+			   tmp_run.allocation_group, tmp_run.start,
+			   tmp_run.len);
+
+		befs_debug(sb, "  max_double_indirect_range %Lu",
+			   fs64_to_cpu(sb,
+				       inode->data.datastream.
+				       max_double_indirect_range));
+
+		befs_debug(sb, "  size %Lu",
+			   fs64_to_cpu(sb, inode->data.datastream.size));
+	}
+
+#endif				//CONFIG_BEFS_DEBUG
+}
+
+/*
+ * Display super block structure for debug.
+ */
+
+void
+befs_dump_super_block(const struct super_block *sb, befs_super_block * sup)
+{
+#ifdef CONFIG_BEFS_DEBUG
+
+	befs_block_run tmp_run;
+
+	befs_debug(sb, "befs_super_block information");
+
+	befs_debug(sb, "  name %s", sup->name);
+	befs_debug(sb, "  magic1 %08x", fs32_to_cpu(sb, sup->magic1));
+	befs_debug(sb, "  fs_byte_order %08x",
+		   fs32_to_cpu(sb, sup->fs_byte_order));
+
+	befs_debug(sb, "  block_size %u", fs32_to_cpu(sb, sup->block_size));
+	befs_debug(sb, "  block_shift %u", fs32_to_cpu(sb, sup->block_shift));
+
+	befs_debug(sb, "  num_blocks %Lu", fs64_to_cpu(sb, sup->num_blocks));
+	befs_debug(sb, "  used_blocks %Lu", fs64_to_cpu(sb, sup->used_blocks));
+
+	befs_debug(sb, "  magic2 %08x", fs32_to_cpu(sb, sup->magic2));
+	befs_debug(sb, "  blocks_per_ag %u",
+		   fs32_to_cpu(sb, sup->blocks_per_ag));
+	befs_debug(sb, "  ag_shift %u", fs32_to_cpu(sb, sup->ag_shift));
+	befs_debug(sb, "  num_ags %u", fs32_to_cpu(sb, sup->num_ags));
+
+	befs_debug(sb, "  flags %08x", fs32_to_cpu(sb, sup->flags));
+
+	tmp_run = fsrun_to_cpu(sb, sup->log_blocks);
+	befs_debug(sb, "  log_blocks %u, %hu, %hu",
+		   tmp_run.allocation_group, tmp_run.start, tmp_run.len);
+
+	befs_debug(sb, "  log_start %Ld", fs64_to_cpu(sb, sup->log_start));
+	befs_debug(sb, "  log_end %Ld", fs64_to_cpu(sb, sup->log_end));
+
+	befs_debug(sb, "  magic3 %08x", fs32_to_cpu(sb, sup->magic3));
+
+	tmp_run = fsrun_to_cpu(sb, sup->root_dir);
+	befs_debug(sb, "  root_dir %u, %hu, %hu",
+		   tmp_run.allocation_group, tmp_run.start, tmp_run.len);
+
+	tmp_run = fsrun_to_cpu(sb, sup->indices);
+	befs_debug(sb, "  indices %u, %hu, %hu",
+		   tmp_run.allocation_group, tmp_run.start, tmp_run.len);
+
+#endif				//CONFIG_BEFS_DEBUG
+}
+
+void
+befs_dump_small_data(const struct super_block *sb, befs_small_data * sd)
+{
+}
+
+void
+befs_dump_run(const struct super_block *sb, befs_block_run run)
+{
+#ifdef CONFIG_BEFS_DEBUG
+
+	run = fsrun_to_cpu(sb, run);
+
+	befs_debug(sb, "[%u, %hu, %hu]",
+		   run.allocation_group, run.start, run.len);
+
+#endif				//CONFIG_BEFS_DEBUG
+}
+
+void
+befs_dump_index_entry(const struct super_block *sb, befs_btree_super * super)
+{
+#ifdef CONFIG_BEFS_DEBUG
+
+	befs_debug(sb, "Btree super structure");
+	befs_debug(sb, "  magic %08x", fs32_to_cpu(sb, super->magic));
+	befs_debug(sb, "  node_size %u", fs32_to_cpu(sb, super->node_size));
+	befs_debug(sb, "  max_depth %08x", fs32_to_cpu(sb, super->max_depth));
+
+	befs_debug(sb, "  data_type %08x", fs32_to_cpu(sb, super->data_type));
+	befs_debug(sb, "  root_node_pointer %016LX",
+		   fs64_to_cpu(sb, super->root_node_ptr));
+	befs_debug(sb, "  free_node_pointer %016LX",
+		   fs64_to_cpu(sb, super->free_node_ptr));
+	befs_debug(sb, "  maximum size %016LX",
+		   fs64_to_cpu(sb, super->max_size));
+
+#endif				//CONFIG_BEFS_DEBUG
+}
+
+void
+befs_dump_index_node(const struct super_block *sb, befs_btree_nodehead * node)
+{
+#ifdef CONFIG_BEFS_DEBUG
+
+	befs_debug(sb, "Btree node structure");
+	befs_debug(sb, "  left %016LX", fs64_to_cpu(sb, node->left));
+	befs_debug(sb, "  right %016LX", fs64_to_cpu(sb, node->right));
+	befs_debug(sb, "  overflow %016LX", fs64_to_cpu(sb, node->overflow));
+	befs_debug(sb, "  all_key_count %hu",
+		   fs16_to_cpu(sb, node->all_key_count));
+	befs_debug(sb, "  all_key_length %hu",
+		   fs16_to_cpu(sb, node->all_key_length));
+
+#endif				//CONFIG_BEFS_DEBUG
+}
diff --git a/fs/befs/endian.h b/fs/befs/endian.h
new file mode 100644
index 00000000000000..d77a26e7bd971b
--- /dev/null
+++ b/fs/befs/endian.h
@@ -0,0 +1,125 @@
+/*
+ * linux/fs/befs/endian.h
+ *
+ * Copyright (C) 2001 Will Dyson <will_dyson@pobox.com>
+ *
+ * Partially based on similar funtions in the sysv driver.
+ */
+
+#ifndef LINUX_BEFS_ENDIAN
+#define LINUX_BEFS_ENDIAN
+
+#include <linux/byteorder/generic.h>
+
+static inline u64
+fs64_to_cpu(const struct super_block *sb, u64 n)
+{
+	if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
+		return le64_to_cpu(n);
+	else
+		return be64_to_cpu(n);
+}
+
+static inline u64
+cpu_to_fs64(const struct super_block *sb, u64 n)
+{
+	if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
+		return cpu_to_le64(n);
+	else
+		return cpu_to_be64(n);
+}
+
+static inline u32
+fs32_to_cpu(const struct super_block *sb, u32 n)
+{
+	if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
+		return le32_to_cpu(n);
+	else
+		return be32_to_cpu(n);
+}
+
+static inline u32
+cpu_to_fs32(const struct super_block *sb, u32 n)
+{
+	if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
+		return cpu_to_le32(n);
+	else
+		return cpu_to_be32(n);
+}
+
+static inline u16
+fs16_to_cpu(const struct super_block *sb, u16 n)
+{
+	if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
+		return le16_to_cpu(n);
+	else
+		return be16_to_cpu(n);
+}
+
+static inline u16
+cpu_to_fs16(const struct super_block *sb, u16 n)
+{
+	if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
+		return cpu_to_le16(n);
+	else
+		return cpu_to_be16(n);
+}
+
+/* Composite types below here */
+
+static inline befs_block_run
+fsrun_to_cpu(const struct super_block *sb, befs_block_run n)
+{
+	befs_block_run run;
+
+	if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE) {
+		run.allocation_group = le32_to_cpu(n.allocation_group);
+		run.start = le16_to_cpu(n.start);
+		run.len = le16_to_cpu(n.len);
+	} else {
+		run.allocation_group = be32_to_cpu(n.allocation_group);
+		run.start = be16_to_cpu(n.start);
+		run.len = be16_to_cpu(n.len);
+	}
+	return run;
+}
+
+static inline befs_block_run
+cpu_to_fsrun(const struct super_block *sb, befs_block_run n)
+{
+	befs_block_run run;
+
+	if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE) {
+		run.allocation_group = cpu_to_le32(n.allocation_group);
+		run.start = cpu_to_le16(n.start);
+		run.len = cpu_to_le16(n.len);
+	} else {
+		run.allocation_group = cpu_to_be32(n.allocation_group);
+		run.start = cpu_to_be16(n.start);
+		run.len = cpu_to_be16(n.len);
+	}
+	return run;
+}
+
+static inline befs_data_stream
+fsds_to_cpu(const struct super_block *sb, befs_data_stream n)
+{
+	befs_data_stream data;
+	int i;
+
+	for (i = 0; i < BEFS_NUM_DIRECT_BLOCKS; ++i)
+		data.direct[i] = fsrun_to_cpu(sb, n.direct[i]);
+
+	data.max_direct_range = fs64_to_cpu(sb, n.max_direct_range);
+	data.indirect = fsrun_to_cpu(sb, n.indirect);
+	data.max_indirect_range = fs64_to_cpu(sb, n.max_indirect_range);
+	data.double_indirect = fsrun_to_cpu(sb, n.double_indirect);
+	data.max_double_indirect_range = fs64_to_cpu(sb,
+						     n.
+						     max_double_indirect_range);
+	data.size = fs64_to_cpu(sb, n.size);
+
+	return data;
+}
+
+#endif				//LINUX_BEFS_ENDIAN
diff --git a/fs/befs/inode.c b/fs/befs/inode.c
new file mode 100644
index 00000000000000..d41c9247ae8af6
--- /dev/null
+++ b/fs/befs/inode.c
@@ -0,0 +1,53 @@
+/*
+ * inode.c
+ * 
+ * Copyright (C) 2001 Will Dyson <will_dyson@pobox.com>
+ */
+
+#include <linux/fs.h>
+
+#include "befs.h"
+#include "inode.h"
+#include "endian.h"
+
+/*
+	Validates the correctness of the befs inode
+	Returns BEFS_OK if the inode should be used, otherwise
+	returns BEFS_BAD_INODE
+*/
+int
+befs_check_inode(struct super_block *sb, befs_inode * raw_inode,
+		 befs_blocknr_t inode)
+{
+	u32 magic1 = fs32_to_cpu(sb, raw_inode->magic1);
+	befs_inode_addr ino_num = fsrun_to_cpu(sb, raw_inode->inode_num);
+	u32 flags = fs32_to_cpu(sb, raw_inode->flags);
+
+	/* check magic header. */
+	if (magic1 != BEFS_INODE_MAGIC1) {
+		befs_error(sb,
+			   "Inode has a bad magic header - inode = %lu", inode);
+		return BEFS_BAD_INODE;
+	}
+
+	/*
+	 * Sanity check2: inodes store their own block address. Check it.
+	 */
+	if (inode != iaddr2blockno(sb, &ino_num)) {
+		befs_error(sb, "inode blocknr field disagrees with vfs "
+			   "VFS: %lu, Inode %lu",
+			   inode, iaddr2blockno(sb, &ino_num));
+		return BEFS_BAD_INODE;
+	}
+
+	/*
+	 * check flag
+	 */
+
+	if (!(flags & BEFS_INODE_IN_USE)) {
+		befs_error(sb, "inode is not used - inode = %lu", inode);
+		return BEFS_BAD_INODE;
+	}
+
+	return BEFS_OK;
+}
diff --git a/fs/befs/inode.h b/fs/befs/inode.h
new file mode 100644
index 00000000000000..c3a7738dcbff1d
--- /dev/null
+++ b/fs/befs/inode.h
@@ -0,0 +1,7 @@
+/*
+ * inode.h
+ * 
+ */
+
+int befs_check_inode(struct super_block *sb, befs_inode * raw_inode,
+		     befs_blocknr_t inode);
diff --git a/fs/befs/io.c b/fs/befs/io.c
new file mode 100644
index 00000000000000..24dee9bb4d0492
--- /dev/null
+++ b/fs/befs/io.c
@@ -0,0 +1,99 @@
+/*
+ * linux/fs/befs/io.c
+ *
+ * Copyright (C) 2001 Will Dyson <will_dyson@pobox.com
+ *
+ * Based on portions of file.c and inode.c 
+ * by Makoto Kato (m_kato@ga2.so-net.ne.jp)
+ *
+ * Many thanks to Dominic Giampaolo, author of Practical File System
+ * Design with the Be File System, for such a helpful book.
+ *
+ */
+
+#include <linux/fs.h>
+
+#include "befs.h"
+#include "io.h"
+
+/*
+ * Converts befs notion of disk addr to a disk offset and uses
+ * linux kernel function bread() to get the buffer containing
+ * the offset. -Will Dyson
+ *
+ */
+
+struct buffer_head *
+befs_bread_iaddr(struct super_block *sb, befs_inode_addr iaddr)
+{
+	struct buffer_head *bh = NULL;
+	befs_blocknr_t block = 0;
+	vfs_blocknr_t vfs_block = 0;
+	befs_sb_info *befs_sb = BEFS_SB(sb);
+
+	befs_debug(sb, "---> Enter befs_read_iaddr() "
+		   "[%u, %hu, %hu]",
+		   iaddr.allocation_group, iaddr.start, iaddr.len);
+
+	if (iaddr.allocation_group > befs_sb->num_ags) {
+		befs_error(sb, "BEFS: Invalid allocation group %u, max is %u",
+			   iaddr.allocation_group, befs_sb->num_ags);
+		goto error;
+	}
+
+	block = iaddr2blockno(sb, &iaddr);
+	vfs_block = (vfs_blocknr_t) block;
+
+	if (vfs_block != block) {
+		befs_error(sb, "Error converting to host blocknr_t. %Lu "
+			   "is larger than the host can use", block);
+		goto error;
+	}
+
+	befs_debug(sb, "befs_read_iaddr: offset = %lu", block);
+
+	bh = bread(sb->s_dev, vfs_block, befs_sb->block_size);
+
+	if (bh == NULL) {
+		befs_error(sb, "Failed to read block %lu", block);
+		goto error;
+	}
+
+	befs_debug(sb, "<--- befs_read_iaddr()");
+	return bh;
+
+      error:
+	befs_debug(sb, "<--- befs_read_iaddr() ERROR");
+	return NULL;
+}
+
+struct buffer_head *
+befs_bread(struct super_block *sb, befs_blocknr_t block)
+{
+	struct buffer_head *bh = NULL;
+	befs_sb_info *befs_sb = BEFS_SB(sb);
+	vfs_blocknr_t vfs_block = (vfs_blocknr_t) block;
+
+	befs_debug(sb, "---> Enter befs_read() %Lu", block);
+
+	if (vfs_block != block) {
+		befs_error(sb, "Error converting to host blocknr_t. %Lu "
+			   "is larger than the host can use", block);
+		goto error;
+	}
+
+	bh = bread(sb->s_dev, vfs_block, befs_sb->block_size);
+
+	if (bh == NULL) {
+		befs_error(sb, "Failed to read block %lu", vfs_block);
+		goto error;
+	}
+
+	befs_debug(sb, "<--- befs_read()");
+
+	return bh;
+
+      error:
+	befs_debug(sb, "<--- befs_read() ERROR");
+	return NULL;
+}
diff --git a/fs/befs/io.h b/fs/befs/io.h
new file mode 100644
index 00000000000000..f06ce866a34045
--- /dev/null
+++ b/fs/befs/io.h
@@ -0,0 +1,8 @@
+/*
+ * io.h
+ */
+
+struct buffer_head *befs_bread_iaddr(struct super_block *sb,
+				     befs_inode_addr iaddr);
+
+struct buffer_head *befs_bread(struct super_block *sb, befs_blocknr_t block);
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
new file mode 100644
index 00000000000000..96c13b269e95df
--- /dev/null
+++ b/fs/befs/linuxvfs.c
@@ -0,0 +1,965 @@
+/*
+ * linux/fs/befs/linuxvfs.c
+ *
+ * Copyright (C) 2001 Will Dyson <will_dyson@pobox.com
+ *
+ */
+
+#include <linux/blkdev.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+
+#include "befs.h"
+#include "btree.h"
+#include "inode.h"
+#include "datastream.h"
+#include "super.h"
+#include "io.h"
+#include "endian.h"
+
+EXPORT_NO_SYMBOLS;
+MODULE_DESCRIPTION("BeOS File System (BeFS) driver");
+MODULE_AUTHOR("Will Dyson");
+MODULE_LICENSE("GPL");
+
+/* The units the vfs expects inode->i_blocks to be in */
+#define VFS_BLOCK_SIZE 512
+
+static int befs_readdir(struct file *, void *, filldir_t);
+static int befs_get_block(struct inode *, long, struct buffer_head *, int);
+static int befs_readpage(struct file *file, struct page *page);
+static int befs_bmap(struct address_space *mapping, long block);
+static struct dentry *befs_lookup(struct inode *, struct dentry *);
+static void befs_read_inode(struct inode *ino);
+static void befs_clear_inode(struct inode *ino);
+static int befs_init_inodecache(void);
+static void befs_destroy_inodecache(void);
+
+static int befs_readlink(struct dentry *, char *, int);
+static int befs_follow_link(struct dentry *, struct nameidata *nd);
+
+static int befs_utf2nls(struct super_block *sb, const char *in, int in_len,
+			char **out, int *out_len);
+static int befs_nls2utf(struct super_block *sb, const char *in, int in_len,
+			char **out, int *out_len);
+
+static void befs_put_super(struct super_block *);
+static struct super_block *befs_read_super(struct super_block *, void *, int);
+static int befs_remount(struct super_block *, int *, char *);
+static int befs_statfs(struct super_block *, struct statfs *);
+static int parse_options(char *, befs_mount_options *);
+
+/* slab cache for befs_inode_info objects */
+static kmem_cache_t *befs_inode_cachep;
+
+static const struct super_operations befs_sops = {
+	read_inode:befs_read_inode,	/* initialize & read inode */
+	clear_inode:befs_clear_inode,	/* uninit inode */
+	put_super:befs_put_super,	/* uninit super */
+	statfs:befs_statfs,	/* statfs */
+	remount_fs:befs_remount,
+};
+
+struct file_operations befs_dir_operations = {
+	read:generic_read_dir,
+	readdir:befs_readdir,
+};
+
+struct inode_operations befs_dir_inode_operations = {
+	lookup:befs_lookup,
+};
+
+struct file_operations befs_file_operations = {
+	llseek:default_llseek,
+	read:generic_file_read,
+	mmap:generic_file_mmap,
+};
+
+struct inode_operations befs_file_inode_operations = {
+};
+
+struct address_space_operations befs_aops = {
+	readpage:befs_readpage,
+	sync_page:block_sync_page,
+	bmap:befs_bmap,
+};
+
+static struct inode_operations befs_symlink_inode_operations = {
+	readlink:befs_readlink,
+	follow_link:befs_follow_link,
+};
+
+/* 
+ * Called by generic_file_read() to read a page of data
+ * 
+ * In turn, simply calls a generic block read function and
+ * passes it the address of befs_get_block, for mapping file
+ * positions to disk blocks.
+ */
+static int
+befs_readpage(struct file *file, struct page *page)
+{
+	return block_read_full_page(page, befs_get_block);
+}
+
+static int
+befs_bmap(struct address_space *mapping, long block)
+{
+	return generic_block_bmap(mapping, block, befs_get_block);
+}
+
+/* 
+ * Generic function to map a file position (block) to a 
+ * disk offset (passed back in bh_result).
+ *
+ * Used by many higher level functions.
+ *
+ * Calls befs_fblock2brun() in datastream.c to do the real work.
+ *
+ * -WD 10-26-01
+ */
+
+static int
+befs_get_block(struct inode *inode, long block,
+	       struct buffer_head *bh_result, int create)
+{
+	struct super_block *sb = inode->i_sb;
+	befs_data_stream *ds = &BEFS_I(inode)->i_data.ds;
+	befs_block_run run = BAD_IADDR;
+	int res = 0;
+	ulong disk_off;
+
+	befs_debug(sb, "---> befs_get_block() for inode %lu, block %ld",
+		   inode->i_ino, block);
+
+	if (block < 0) {
+		befs_error(sb, "befs_get_block() was asked for a block "
+			   "number less than zero: block %ld in inode %lu",
+			   block, inode->i_ino);
+		return -EIO;
+	}
+
+	if (create) {
+		befs_error(sb, "befs_get_block() was asked to write to "
+			   "block %ld in inode %lu", block, inode->i_ino);
+		return -EPERM;
+	}
+
+	res = befs_fblock2brun(sb, ds, block, &run);
+	if (res != BEFS_OK) {
+		befs_error(sb,
+			   "<--- befs_get_block() for inode %lu, block "
+			   "%ld ERROR", inode->i_ino, block);
+		return -EFBIG;
+	}
+
+	disk_off = (ulong) iaddr2blockno(sb, &run);
+
+	bh_result->b_dev = inode->i_dev;
+	bh_result->b_blocknr = disk_off;
+	bh_result->b_state |= (1UL << BH_Mapped);
+
+	befs_debug(sb, "<--- befs_get_block() for inode %lu, block %ld, "
+		   "disk address %lu", inode->i_ino, block, disk_off);
+
+	return 0;
+}
+
+static struct dentry *
+befs_lookup(struct inode *dir, struct dentry *dentry)
+{
+	struct inode *inode = NULL;
+	struct super_block *sb = dir->i_sb;
+	befs_data_stream *ds = &BEFS_I(dir)->i_data.ds;
+	befs_off_t offset;
+	int ret;
+	int utfnamelen;
+	char *utfname;
+	const char *name = dentry->d_name.name;
+
+	befs_debug(sb, "---> befs_lookup() "
+		   "name %s inode %ld", dentry->d_name.name, dir->i_ino);
+
+	/* Convert to UTF-8 */
+	if (BEFS_SB(sb)->nls) {
+		ret =
+		    befs_nls2utf(sb, name, strlen(name), &utfname, &utfnamelen);
+		if (ret < 0) {
+			befs_debug(sb, "<--- befs_lookup() ERROR");
+			return ERR_PTR(ret);
+		}
+		ret = befs_btree_find(sb, ds, utfname, &offset);
+		kfree(utfname);
+
+	} else {
+		ret = befs_btree_find(sb, ds, dentry->d_name.name, &offset);
+	}
+
+	if (ret == BEFS_BT_NOT_FOUND) {
+		befs_debug(sb, "<--- befs_lookup() %s not found",
+			   dentry->d_name.name);
+		return ERR_PTR(-ENOENT);
+
+	} else if (ret != BEFS_OK || offset == 0) {
+		befs_warning(sb, "<--- befs_lookup() Error");
+		return ERR_PTR(-ENODATA);
+	}
+
+	inode = iget(dir->i_sb, (ino_t) offset);
+	if (!inode)
+		return ERR_PTR(-EACCES);
+
+	d_add(dentry, inode);
+
+	befs_debug(sb, "<--- befs_lookup()");
+
+	return NULL;
+}
+
+static int
+befs_readdir(struct file *filp, void *dirent, filldir_t filldir)
+{
+	struct inode *inode = filp->f_dentry->d_inode;
+	struct super_block *sb = inode->i_sb;
+	befs_data_stream *ds = &BEFS_I(inode)->i_data.ds;
+	befs_off_t value;
+	int result;
+	size_t keysize;
+	unsigned char d_type;
+	char keybuf[BEFS_NAME_LEN + 1];
+	char *nlsname;
+	int nlsnamelen;
+	const char *dirname = filp->f_dentry->d_name.name;
+
+	befs_debug(sb, "---> befs_readdir() "
+		   "name %s, inode %ld, filp->f_pos %Ld",
+		   dirname, inode->i_ino, filp->f_pos);
+
+	result = befs_btree_read(sb, ds, filp->f_pos, BEFS_NAME_LEN + 1,
+				 keybuf, &keysize, &value);
+
+	if (result == BEFS_ERR) {
+		befs_debug(sb, "<--- befs_readdir() ERROR");
+		befs_error(sb, "IO error reading %s (inode %lu)",
+			   dirname, inode->i_ino);
+		return -EIO;
+
+	} else if (result == BEFS_BT_END) {
+		befs_debug(sb, "<--- befs_readdir() END");
+		return 0;
+
+	} else if (result == BEFS_BT_EMPTY) {
+		befs_debug(sb, "<--- befs_readdir() Empty directory");
+		return 0;
+	}
+
+	d_type = DT_UNKNOWN;
+
+	/* Convert to NLS */
+	if (BEFS_SB(sb)->nls) {
+		result =
+		    befs_utf2nls(sb, keybuf, keysize, &nlsname, &nlsnamelen);
+		if (result < 0) {
+			befs_debug(sb, "<--- befs_readdir() ERROR");
+			return result;
+		}
+		result = filldir(dirent, nlsname, nlsnamelen, filp->f_pos,
+				 (ino_t) value, d_type);
+		kfree(nlsname);
+
+	} else {
+		result = filldir(dirent, keybuf, keysize, filp->f_pos,
+				 (ino_t) value, d_type);
+	}
+
+	filp->f_pos++;
+
+	befs_debug(sb, "<--- befs_readdir() filp->f_pos %Ld", filp->f_pos);
+
+	return 0;
+}
+
+static void
+befs_clear_inode(struct inode *inode)
+{
+	befs_inode_info *b_ino = BEFS_I(inode);
+	inode->u.generic_ip = NULL;
+
+	if (b_ino) {
+		kmem_cache_free(befs_inode_cachep, b_ino);
+	}
+	return;
+}
+
+static void
+befs_read_inode(struct inode *inode)
+{
+	struct buffer_head *bh = NULL;
+	befs_inode *raw_inode = NULL;
+
+	struct super_block *sb = inode->i_sb;
+	befs_sb_info *befs_sb = BEFS_SB(sb);
+	befs_inode_info *befs_ino = NULL;
+
+	befs_debug(sb, "---> befs_read_inode() " "inode = %lu", inode->i_ino);
+
+	inode->u.generic_ip = kmem_cache_alloc(befs_inode_cachep, GFP_NOFS);
+	if (inode->u.generic_ip == NULL) {
+		befs_error(sb, "Unable to allocate memory for private "
+			   "portion of inode %lu.", inode->i_ino);
+		goto unaquire_none;
+	}
+	befs_ino = BEFS_I(inode);
+
+	/* convert from vfs's inode number to befs's inode number */
+	befs_ino->i_inode_num = blockno2iaddr(sb, inode->i_ino);
+
+	befs_debug(sb, "  real inode number [%u, %hu, %hu]",
+		   befs_ino->i_inode_num.allocation_group,
+		   befs_ino->i_inode_num.start, befs_ino->i_inode_num.len);
+
+	bh = befs_bread_iaddr(sb, befs_ino->i_inode_num);
+	if (!bh) {
+		befs_error(sb, "unable to read inode block - "
+			   "inode = %lu", inode->i_ino);
+		goto unaquire_ino_info;
+	}
+
+	raw_inode = (befs_inode *) bh->b_data;
+
+	befs_dump_inode(sb, raw_inode);
+
+	if (befs_check_inode(sb, raw_inode, inode->i_ino) != BEFS_OK) {
+		befs_error(sb, "Bad inode: %lu", inode->i_ino);
+		goto unaquire_bh;
+	}
+
+	inode->i_mode = (umode_t) fs32_to_cpu(sb, raw_inode->mode);
+
+	/*
+	 * set uid and gid.  But since current BeOS is single user OS, so
+	 * you can change by "uid" or "gid" options.
+	 */
+
+	inode->i_uid = befs_sb->mount_opts.use_uid ?
+	    befs_sb->mount_opts.uid : (uid_t) fs32_to_cpu(sb, raw_inode->uid);
+	inode->i_gid = befs_sb->mount_opts.use_gid ?
+	    befs_sb->mount_opts.gid : (gid_t) fs32_to_cpu(sb, raw_inode->gid);
+
+	inode->i_nlink = 1;
+
+	/*
+	 * BEFS's time is 64 bits, but current VFS is 32 bits...
+	 * BEFS don't have access time. Nor inode change time. VFS
+	 * doesn't have creation time.
+	 */
+
+	inode->i_mtime =
+	    (time_t) (fs64_to_cpu(sb, raw_inode->last_modified_time) >> 16);
+	inode->i_ctime = inode->i_mtime;
+	inode->i_atime = inode->i_mtime;
+	inode->i_blkbits = befs_sb->block_shift;
+	inode->i_blksize = befs_sb->block_size;
+
+	befs_ino->i_inode_num = fsrun_to_cpu(sb, raw_inode->inode_num);
+	befs_ino->i_parent = fsrun_to_cpu(sb, raw_inode->parent);
+	befs_ino->i_attribute = fsrun_to_cpu(sb, raw_inode->attributes);
+	befs_ino->i_flags = fs32_to_cpu(sb, raw_inode->flags);
+
+	if (S_ISLNK(inode->i_mode) && !(inode->i_flags & BEFS_LONG_SYMLINK)) {
+		inode->i_size = 0;
+		inode->i_blocks = befs_sb->block_size / VFS_BLOCK_SIZE;
+		strncpy(befs_ino->i_data.symlink, raw_inode->data.symlink,
+			BEFS_SYMLINK_LEN);
+	} else {
+		int num_blks;
+
+		befs_ino->i_data.ds =
+		    fsds_to_cpu(sb, raw_inode->data.datastream);
+
+		num_blks = befs_count_blocks(sb, &befs_ino->i_data.ds);
+		inode->i_blocks =
+		    num_blks * (befs_sb->block_size / VFS_BLOCK_SIZE);
+		inode->i_size = befs_ino->i_data.ds.size;
+	}
+
+	inode->i_mapping->a_ops = &befs_aops;
+
+	if (S_ISREG(inode->i_mode)) {
+		inode->i_fop = &befs_file_operations;
+		inode->i_op = &befs_file_inode_operations;
+	} else if (S_ISDIR(inode->i_mode)) {
+		inode->i_op = &befs_dir_inode_operations;
+		inode->i_fop = &befs_dir_operations;
+	} else if (S_ISLNK(inode->i_mode)) {
+		inode->i_op = &befs_symlink_inode_operations;
+	} else {
+		befs_error(sb, "Inode %lu is not a regular file, "
+			   "directory or symlink. THAT IS WRONG! BeFS has no "
+			   "on disk special files", inode->i_ino);
+		goto unaquire_bh;
+	}
+
+	brelse(bh);
+	befs_debug(sb, "<--- befs_read_inode()");
+	return;
+
+      unaquire_bh:
+	brelse(bh);
+
+      unaquire_ino_info:
+	kmem_cache_free(befs_inode_cachep, inode->u.generic_ip);
+
+      unaquire_none:
+	make_bad_inode(inode);
+	inode->u.generic_ip = NULL;
+	befs_debug(sb, "<--- befs_read_inode() - Bad inode");
+	return;
+}
+
+/* Initialize the inode cache. Called at fs setup.
+ * 
+ * Taken from NFS implementation by Al Viro.
+ */
+static int
+befs_init_inodecache(void)
+{
+	befs_inode_cachep = kmem_cache_create("befs_inode_cache",
+					      sizeof (struct befs_inode_info),
+					      0, SLAB_HWCACHE_ALIGN,
+					      NULL, NULL);
+	if (befs_inode_cachep == NULL) {
+		printk(KERN_ERR "befs_init_inodecache: "
+		       "Couldn't initalize inode slabcache\n");
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+/* Called at fs teardown.
+ * 
+ * Taken from NFS implementation by Al Viro.
+ */
+static void
+befs_destroy_inodecache(void)
+{
+	if (kmem_cache_destroy(befs_inode_cachep))
+		printk(KERN_ERR "befs_destroy_inodecache: "
+		       "not all structures were freed\n");
+}
+
+/*
+ * The inode of symbolic link is different to data stream.
+ * The data stream become link name. Unless the LONG_SYMLINK
+ * flag is set.
+ */
+static int
+befs_follow_link(struct dentry *dentry, struct nameidata *nd)
+{
+	struct super_block *sb = dentry->d_sb;
+	befs_inode_info *befs_ino = BEFS_I(dentry->d_inode);
+	char *link;
+	int res;
+
+	if (befs_ino->i_flags & BEFS_LONG_SYMLINK) {
+		befs_data_stream *data = &befs_ino->i_data.ds;
+		befs_off_t linklen = data->size;
+
+		befs_debug(sb, "Follow long symlink");
+
+		link = kmalloc(linklen, GFP_NOFS);
+		if (link == NULL)
+			return -ENOMEM;
+
+		if (befs_read_lsymlink(sb, data, link, linklen) != linklen) {
+			kfree(link);
+			befs_error(sb, "Failed to read entire long symlink");
+			return -EIO;
+		}
+
+		res = vfs_follow_link(nd, link);
+
+		kfree(link);
+	} else {
+		link = befs_ino->i_data.symlink;
+		res = vfs_follow_link(nd, link);
+	}
+
+	return res;
+}
+
+static int
+befs_readlink(struct dentry *dentry, char *buffer, int buflen)
+{
+	struct super_block *sb = dentry->d_sb;
+	befs_inode_info *befs_ino = BEFS_I(dentry->d_inode);
+	char *link;
+	int res;
+
+	if (befs_ino->i_flags & BEFS_LONG_SYMLINK) {
+		befs_data_stream *data = &befs_ino->i_data.ds;
+		befs_off_t linklen = data->size;
+
+		befs_debug(sb, "Read long symlink");
+
+		link = kmalloc(linklen, GFP_NOFS);
+		if (link == NULL)
+			return -ENOMEM;
+
+		if (befs_read_lsymlink(sb, data, link, linklen) != linklen) {
+			kfree(link);
+			befs_error(sb, "Failed to read entire long symlink");
+			return -EIO;
+		}
+
+		res = vfs_readlink(dentry, buffer, buflen, link);
+
+		kfree(link);
+	} else {
+		link = befs_ino->i_data.symlink;
+		res = vfs_readlink(dentry, buffer, buflen, link);
+	}
+
+	return res;
+}
+
+/*
+ * UTF-8 to NLS charset  convert routine
+ *
+ * Changed 8/10/01 by Will Dyson. Now use uni2char() / char2uni() rather than
+ * the nls tables directly
+ */
+
+static int
+befs_utf2nls(struct super_block *sb, const char *in,
+	     int in_len, char **out, int *out_len)
+{
+	struct nls_table *nls = BEFS_SB(sb)->nls;
+	int i, o;
+	wchar_t uni;
+	int unilen, utflen;
+	char *result;
+	int maxlen = in_len;	/* The utf8->nls conversion cant make more chars */
+
+	befs_debug(sb, "---> utf2nls()");
+
+	if (!nls) {
+		befs_error(sb, "befs_utf2nls called with no NLS table loaded");
+		return -EINVAL;
+	}
+
+	*out = result = kmalloc(maxlen, GFP_NOFS);
+	if (!*out) {
+		befs_error(sb, "befs_utf2nls() cannot allocate memory");
+		*out_len = 0;
+		return -ENOMEM;
+	}
+
+	for (i = o = 0; i < in_len; i += utflen, o += unilen) {
+
+		/* convert from UTF-8 to Unicode */
+		utflen = utf8_mbtowc(&uni, &in[i], in_len - i);
+		if (utflen < 0) {
+			goto conv_err;
+		}
+
+		/* convert from Unicode to nls */
+		unilen = nls->uni2char(uni, &result[o], 1);
+		if (unilen < 0) {
+			goto conv_err;
+		}
+	}
+	result[o] = '\0';
+	*out_len = o;
+
+	befs_debug(sb, "<--- utf2nls()");
+
+	return o;
+
+      conv_err:
+	befs_error(sb, "Name using charecter set %s contains a charecter that "
+		   "cannot be converted to unicode.", nls->charset);
+	befs_debug(sb, "<--- utf2nls()");
+	kfree(result);
+	return -EILSEQ;
+}
+
+/**
+ * befs_nls2utf - Convert NLS string to utf8 encodeing
+ * @sb: Superblock
+ * @src: Input string buffer in NLS format
+ * @srclen: Length of input string in bytes
+ * @dest: The output string in UTF8 format
+ * @destlen: Length of the output buffer
+ * 
+ * Converts input string @src, which is in the format of the loaded NLS map,
+ * into a utf8 string.
+ * 
+ * The destination string @dest is allocated by this function and the caller is
+ * responsible for freeing it with kfree()
+ * 
+ * On return, *@destlen is the length of @dest in bytes.
+ *
+ * On success, the return value is the number of utf8 charecters written to
+ * the ouput buffer @dest.
+ *  
+ * On Failure, a negative number coresponding to the error code is returned.
+ */
+
+static int
+befs_nls2utf(struct super_block *sb, const char *in,
+	     int in_len, char **out, int *out_len)
+{
+	struct nls_table *nls = BEFS_SB(sb)->nls;
+	int i, o;
+	wchar_t uni;
+	int unilen, utflen;
+	char *result;
+	int maxlen = 3 * in_len;
+
+	befs_debug(sb, "---> nls2utf()\n");
+
+	if (!nls) {
+		befs_error(sb, "befs_nls2utf called with no NLS table loaded.");
+		return -EINVAL;
+	}
+
+	*out = result = kmalloc(maxlen, GFP_NOFS);
+	if (!*out) {
+		befs_error(sb, "befs_nls2utf() cannot allocate memory");
+		*out_len = 0;
+		return -ENOMEM;
+	}
+
+	for (i = o = 0; i < in_len; i += unilen, o += utflen) {
+
+		/* convert from nls to unicode */
+		unilen = nls->char2uni(&in[i], in_len - i, &uni);
+		if (unilen < 0) {
+			goto conv_err;
+		}
+
+		/* convert from unicode to UTF-8 */
+		utflen = utf8_wctomb(&result[o], uni, 3);
+		if (utflen <= 0) {
+			goto conv_err;
+		}
+	}
+
+	result[o] = '\0';
+	*out_len = o;
+
+	befs_debug(sb, "<--- nls2utf()");
+
+	return i;
+
+      conv_err:
+	befs_error(sb, "Name using charecter set %s contains a charecter that "
+		   "cannot be converted to unicode.", nls->charset);
+	befs_debug(sb, "<--- nls2utf()");
+	kfree(result);
+	return -EILSEQ;
+}
+
+/****Superblock****/
+
+static int
+parse_options(char *options, befs_mount_options * opts)
+{
+	char *this_char;
+	char *value;
+	int ret = 1;
+
+	/* Initialize options */
+	opts->uid = 0;
+	opts->gid = 0;
+	opts->use_uid = 0;
+	opts->use_gid = 0;
+	opts->iocharset = NULL;
+	opts->debug = 0;
+
+	if (!options)
+		return ret;
+
+	for (this_char = strtok(options, ","); this_char != NULL;
+	     this_char = strtok(NULL, ",")) {
+
+		if ((value = strchr(this_char, '=')) != NULL)
+			*value++ = 0;
+
+		if (!strcmp(this_char, "uid")) {
+			if (!value || !*value) {
+				ret = 0;
+			} else {
+				opts->uid = simple_strtoul(value, &value, 0);
+				opts->use_uid = 1;
+				if (*value) {
+					printk(KERN_ERR "BEFS: Invalid uid "
+					       "option: %s\n", value);
+					ret = 0;
+				}
+			}
+		} else if (!strcmp(this_char, "gid")) {
+			if (!value || !*value)
+				ret = 0;
+			else {
+				opts->gid = simple_strtoul(value, &value, 0);
+				opts->use_gid = 1;
+				if (*value) {
+					printk(KERN_ERR
+					       "BEFS: Invalid gid option: "
+					       "%s\n", value);
+					ret = 0;
+				}
+			}
+		} else if (!strcmp(this_char, "iocharset") && value) {
+			char *p = value;
+			int len;
+
+			while (*value && *value != ',')
+				value++;
+			len = value - p;
+			if (len) {
+				char *buffer = kmalloc(len + 1, GFP_NOFS);
+				if (buffer) {
+					opts->iocharset = buffer;
+					memcpy(buffer, p, len);
+					buffer[len] = 0;
+
+				} else {
+					printk(KERN_ERR "BEFS: "
+					       "cannot allocate memory\n");
+					ret = 0;
+				}
+			}
+		} else if (!strcmp(this_char, "debug")) {
+			opts->debug = 1;
+		}
+	}
+
+	return ret;
+}
+
+/* This function has the responsibiltiy of getting the
+ * filesystem ready for unmounting. 
+ * Basicly, we free everything that we allocated in
+ * befs_read_inode
+ */
+static void
+befs_put_super(struct super_block *sb)
+{
+	if (BEFS_SB(sb)->mount_opts.iocharset) {
+		kfree(BEFS_SB(sb)->mount_opts.iocharset);
+		BEFS_SB(sb)->mount_opts.iocharset = NULL;
+	}
+
+	if (BEFS_SB(sb)->nls) {
+		unload_nls(BEFS_SB(sb)->nls);
+		BEFS_SB(sb)->nls = NULL;
+	}
+
+	if (sb->u.generic_sbp) {
+		kfree(sb->u.generic_sbp);
+		sb->u.generic_sbp = NULL;
+	}
+	return;
+}
+
+/* Allocate private field of the superblock, fill it.
+ *
+ * Finish filling the public superblock fields
+ * Make the root directory
+ * Load a set of NLS translations if needed.
+ */
+static struct super_block *
+befs_read_super(struct super_block *sb, void *data, int silent)
+{
+	struct buffer_head *bh;
+	befs_sb_info *befs_sb;
+	befs_super_block *disk_sb;
+	int blocksize;
+
+	const unsigned long sb_block = 0;
+	const off_t x86_sb_off = 512;
+
+	sb->u.generic_sbp = kmalloc(sizeof (struct befs_sb_info), GFP_NOFS);
+	if (sb->u.generic_sbp == NULL) {
+		printk(KERN_ERR
+		       "BeFS(%s): Unable to allocate memory for private "
+		       "portion of superblock. Bailing.\n",
+		       kdevname(sb->s_dev));
+		goto unaquire_none;
+	}
+	befs_sb = BEFS_SB(sb);
+
+	if (!parse_options((char *) data, &befs_sb->mount_opts)) {
+		befs_error(sb, "cannot parse mount options");
+		goto unaquire_priv_sbp;
+	}
+
+	befs_debug(sb, "---> befs_read_super()");
+
+#ifndef CONFIG_BEFS_RW
+	if (!(sb->s_flags & MS_RDONLY)) {
+		befs_warning(sb,
+			     "No write support. Marking filesystem read-only");
+		sb->s_flags |= MS_RDONLY;
+	}
+#endif				/* CONFIG_BEFS_RW */
+
+	/*
+	 * Set dummy blocksize to read super block.
+	 * Will be set to real fs blocksize later.
+	 *
+	 * Linux 2.4.10 and later refuse to read blocks smaller than
+	 * the hardsect size for the device. But we also need to read at 
+	 * least 1k to get the second 512 bytes of the volume.
+	 * -WD 10-26-01
+	 */
+	blocksize = max_t(int, get_hardsect_size(sb->s_dev), 1024);
+	set_blocksize(sb->s_dev, blocksize);
+
+	if (!(bh = bread(sb->s_dev, sb_block, blocksize))) {
+		befs_error(sb, "unable to read superblock");
+		goto unaquire_priv_sbp;
+	}
+
+	/* account for offset of super block on x86 */
+	disk_sb = (befs_super_block *) bh->b_data;
+	if ((le32_to_cpu(disk_sb->magic1) == BEFS_SUPER_MAGIC1) ||
+	    (be32_to_cpu(disk_sb->magic1) == BEFS_SUPER_MAGIC1)) {
+		befs_debug(sb, "Using PPC superblock location");
+	} else {
+		befs_debug(sb, "Using x86 superblock location");
+		disk_sb =
+		    (befs_super_block *) ((void *) bh->b_data + x86_sb_off);
+	}
+
+	if (befs_load_sb(sb, disk_sb) != BEFS_OK)
+		goto unaquire_bh;
+
+	befs_dump_super_block(sb, disk_sb);
+
+	brelse(bh);
+
+	if (befs_check_sb(sb) != BEFS_OK)
+		goto unaquire_priv_sbp;
+
+	/*
+	 * set up enough so that it can read an inode
+	 * Fill in kernel superblock fields from private sb
+	 */
+	sb->s_magic = BEFS_SUPER_MAGIC;
+	sb->s_blocksize = (ulong) befs_sb->block_size;
+	sb->s_blocksize_bits = (unsigned char) befs_sb->block_shift;
+	sb->s_op = (struct super_operations *) &befs_sops;
+	sb->s_root =
+	    d_alloc_root(iget(sb, iaddr2blockno(sb, &(befs_sb->root_dir))));
+	if (!sb->s_root) {
+		befs_error(sb, "get root inode failed");
+		goto unaquire_priv_sbp;
+	}
+
+	/* load nls library */
+	if (befs_sb->mount_opts.iocharset) {
+		befs_debug(sb, "Loading nls: %s",
+			   befs_sb->mount_opts.iocharset);
+		befs_sb->nls = load_nls(befs_sb->mount_opts.iocharset);
+		if (!befs_sb->nls) {
+			befs_warning(sb, "Cannot load nls %s"
+				     "loding default nls",
+				     befs_sb->mount_opts.iocharset);
+			befs_sb->nls = load_nls_default();
+		}
+	}
+
+	/* Set real blocksize of fs */
+	set_blocksize(sb->s_dev, (int) befs_sb->block_size);
+
+	return sb;
+/*****************/
+      unaquire_bh:
+	brelse(bh);
+
+      unaquire_priv_sbp:
+	kfree(sb->u.generic_sbp);
+
+      unaquire_none:
+	sb->s_dev = 0;
+	sb->u.generic_sbp = NULL;
+	return NULL;
+}
+
+static int
+befs_remount(struct super_block *sb, int *flags, char *data)
+{
+	if (!(*flags & MS_RDONLY))
+		return -EINVAL;
+	return 0;
+}
+
+static int
+befs_statfs(struct super_block *sb, struct statfs *buf)
+{
+
+	befs_debug(sb, "---> befs_statfs()");
+
+	buf->f_type = BEFS_SUPER_MAGIC;
+	buf->f_bsize = sb->s_blocksize;
+	buf->f_blocks = BEFS_SB(sb)->num_blocks;
+	buf->f_bfree = BEFS_SB(sb)->num_blocks - BEFS_SB(sb)->used_blocks;
+	buf->f_bavail = buf->f_bfree;
+	buf->f_files = 0;	/* UNKNOWN */
+	buf->f_ffree = 0;	/* UNKNOWN */
+	buf->f_namelen = BEFS_NAME_LEN;
+
+	befs_debug(sb, "<--- befs_statfs()");
+
+	return 0;
+}
+
+/*
+	Makes a variable of type file_system_type, 
+	named befs_fs_tipe, identified by the "befs" string,
+	and containing a reference to the befs_read_super function
+	
+	Macro declared in <linux/fs.h>
+*/
+static DECLARE_FSTYPE_DEV(befs_fs_type, "befs", befs_read_super);
+
+static int __init
+init_befs_fs(void)
+{
+	int err;
+
+	printk(KERN_INFO "BeFS version: %s\n", BEFS_VERSION);
+
+	err = befs_init_inodecache();
+	if (err)
+		return err;
+
+	return register_filesystem(&befs_fs_type);
+}
+
+static void __exit
+exit_befs_fs(void)
+{
+	befs_destroy_inodecache();
+
+	unregister_filesystem(&befs_fs_type);
+}
+
+/*
+Macros that typecheck the init and exit functions,
+ensures that they are called at init and cleanup,
+and eliminates warnings about unused functions.
+*/
+module_init(init_befs_fs)
+    module_exit(exit_befs_fs)
diff --git a/fs/befs/super.c b/fs/befs/super.c
new file mode 100644
index 00000000000000..57ec2514bb315d
--- /dev/null
+++ b/fs/befs/super.c
@@ -0,0 +1,112 @@
+/*
+ * super.c
+ *
+ * Copyright (C) 2001-2002 Will Dyson <will_dyson@pobox.com>
+ *
+ * Licensed under the GNU GPL. See the file COPYING for details.
+ *
+ */
+
+#include <linux/fs.h>
+
+#include "befs.h"
+#include "super.h"
+#include "endian.h"
+
+/**
+ * load_befs_sb -- Read from disk and properly byteswap all the fields
+ * of the befs superblock
+ *
+ *
+ *
+ *
+ */
+int
+befs_load_sb(struct super_block *sb, befs_super_block * disk_sb)
+{
+	befs_sb_info *befs_sb = BEFS_SB(sb);
+
+	/* Check the byte order of the filesystem */
+	if (le32_to_cpu(disk_sb->fs_byte_order) == BEFS_BYTEORDER_NATIVE)
+		befs_sb->byte_order = BEFS_BYTESEX_LE;
+	else if (be32_to_cpu(disk_sb->fs_byte_order) == BEFS_BYTEORDER_NATIVE)
+		befs_sb->byte_order = BEFS_BYTESEX_BE;
+
+	befs_sb->magic1 = fs32_to_cpu(sb, disk_sb->magic1);
+	befs_sb->magic2 = fs32_to_cpu(sb, disk_sb->magic2);
+	befs_sb->magic3 = fs32_to_cpu(sb, disk_sb->magic3);
+	befs_sb->block_size = fs32_to_cpu(sb, disk_sb->block_size);
+	befs_sb->block_shift = fs32_to_cpu(sb, disk_sb->block_shift);
+	befs_sb->num_blocks = fs64_to_cpu(sb, disk_sb->num_blocks);
+	befs_sb->used_blocks = fs64_to_cpu(sb, disk_sb->used_blocks);
+	befs_sb->inode_size = fs32_to_cpu(sb, disk_sb->inode_size);
+
+	befs_sb->blocks_per_ag = fs32_to_cpu(sb, disk_sb->blocks_per_ag);
+	befs_sb->ag_shift = fs32_to_cpu(sb, disk_sb->ag_shift);
+	befs_sb->num_ags = fs32_to_cpu(sb, disk_sb->num_ags);
+
+	befs_sb->log_blocks = fsrun_to_cpu(sb, disk_sb->log_blocks);
+	befs_sb->log_start = fs64_to_cpu(sb, disk_sb->log_start);
+	befs_sb->log_end = fs64_to_cpu(sb, disk_sb->log_end);
+
+	befs_sb->root_dir = fsrun_to_cpu(sb, disk_sb->root_dir);
+	befs_sb->indices = fsrun_to_cpu(sb, disk_sb->indices);
+	befs_sb->nls = NULL;
+
+	return BEFS_OK;
+}
+
+int
+befs_check_sb(struct super_block *sb)
+{
+	befs_sb_info *befs_sb = BEFS_SB(sb);
+
+	/* Check magic headers of super block */
+	if ((befs_sb->magic1 != BEFS_SUPER_MAGIC1)
+	    || (befs_sb->magic2 != BEFS_SUPER_MAGIC2)
+	    || (befs_sb->magic3 != BEFS_SUPER_MAGIC3)) {
+		befs_error(sb, "invalid magic header");
+		return BEFS_ERR;
+	}
+
+	/*
+	 * Check blocksize of BEFS.
+	 *
+	 * Blocksize of BEFS is 1024, 2048, 4096 or 8192.
+	 */
+
+	if ((befs_sb->block_size != 1024)
+	    && (befs_sb->block_size != 2048)
+	    && (befs_sb->block_size != 4096)
+	    && (befs_sb->block_size != 8192)) {
+		befs_error(sb, "invalid blocksize: %u", befs_sb->block_size);
+		return BEFS_ERR;
+	}
+
+	if (befs_sb->block_size > PAGE_SIZE) {
+		befs_error(sb, "blocksize(%u) cannot be larger"
+			   "than system pagesize(%lu)", befs_sb->block_size,
+			   PAGE_SIZE);
+		return BEFS_ERR;
+	}
+
+	/*
+	   * block_shift and block_size encode the same information
+	   * in different ways as a consistency check.
+	 */
+
+	if ((1 << befs_sb->block_shift) != befs_sb->block_size) {
+		befs_error(sb, "block_shift disagrees with block_size. "
+			   "Corruption likely.");
+		return BEFS_ERR;
+	}
+
+	if (befs_sb->log_start != befs_sb->log_end) {
+		befs_error(sb, "Filesystem not clean! There are blocks in the "
+			   "journal. You must boot into BeOS and mount this volume "
+			   "to make it clean.");
+		return BEFS_ERR;
+	}
+
+	return BEFS_OK;
+}
diff --git a/fs/befs/super.h b/fs/befs/super.h
new file mode 100644
index 00000000000000..d33d1ca74e698b
--- /dev/null
+++ b/fs/befs/super.h
@@ -0,0 +1,7 @@
+/*
+ * super.h
+ */
+
+int befs_load_sb(struct super_block *sb, befs_super_block * disk_sb);
+
+int befs_check_sb(struct super_block *sb);
diff --git a/fs/bfs/Makefile b/fs/bfs/Makefile
new file mode 100644
index 00000000000000..ff4d375dd53985
--- /dev/null
+++ b/fs/bfs/Makefile
@@ -0,0 +1,15 @@
+#
+# Makefile for BFS filesystem.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main Makefile...
+
+O_TARGET := bfs.o
+
+obj-y   := inode.o file.o dir.o
+obj-m   := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/bfs/bfs_defs.h b/fs/bfs/bfs_defs.h
new file mode 100644
index 00000000000000..672419cd09574e
--- /dev/null
+++ b/fs/bfs/bfs_defs.h
@@ -0,0 +1,20 @@
+#define su_lasti	u.bfs_sb.si_lasti
+#define su_blocks	u.bfs_sb.si_blocks
+#define su_freeb	u.bfs_sb.si_freeb
+#define su_freei	u.bfs_sb.si_freei
+#define su_lf_ioff	u.bfs_sb.si_lf_ioff
+#define su_lf_sblk	u.bfs_sb.si_lf_sblk
+#define su_lf_eblk	u.bfs_sb.si_lf_eblk
+#define su_imap		u.bfs_sb.si_imap
+#define su_sbh		u.bfs_sb.si_sbh
+#define su_bfs_sb	u.bfs_sb.si_bfs_sb
+
+#define iu_dsk_ino	u.bfs_i.i_dsk_ino
+#define iu_sblock	u.bfs_i.i_sblock
+#define iu_eblock	u.bfs_i.i_eblock
+
+#define printf(format, args...) \
+do { \
+	printk(KERN_ERR "BFS-fs: %s(): ", __FUNCTION__); \
+	printk(format, args); \
+} while (0)
diff --git a/fs/bfs/dir.c b/fs/bfs/dir.c
new file mode 100644
index 00000000000000..9b6c86195a6825
--- /dev/null
+++ b/fs/bfs/dir.c
@@ -0,0 +1,339 @@
+/*
+ *	fs/bfs/dir.c
+ *	BFS directory operations.
+ *	Copyright (C) 1999,2000  Tigran Aivazian <tigran@veritas.com>
+ */
+
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/bfs_fs.h>
+#include <linux/locks.h>
+
+#include "bfs_defs.h"
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define dprintf(x...)	printf(x)
+#else
+#define dprintf(x...)
+#endif
+
+static int bfs_add_entry(struct inode * dir, const char * name, int namelen, int ino);
+static struct buffer_head * bfs_find_entry(struct inode * dir, 
+	const char * name, int namelen, struct bfs_dirent ** res_dir);
+
+static int bfs_readdir(struct file * f, void * dirent, filldir_t filldir)
+{
+	struct inode * dir = f->f_dentry->d_inode;
+	struct buffer_head * bh;
+	struct bfs_dirent * de;
+	kdev_t dev = dir->i_dev;
+	unsigned int offset;
+	int block;
+
+	if (f->f_pos & (BFS_DIRENT_SIZE-1)) {
+		printf("Bad f_pos=%08lx for %s:%08lx\n", (unsigned long)f->f_pos, 
+			bdevname(dev), dir->i_ino);
+		return -EBADF;
+	}
+
+	while (f->f_pos < dir->i_size) {
+		offset = f->f_pos & (BFS_BSIZE-1);
+		block = dir->iu_sblock + (f->f_pos >> BFS_BSIZE_BITS);
+		bh = sb_bread(dir->i_sb, block);
+		if (!bh) {
+			f->f_pos += BFS_BSIZE - offset;
+			continue;
+		}
+		do {
+			de = (struct bfs_dirent *)(bh->b_data + offset);
+			if (de->ino) {
+				int size = strnlen(de->name, BFS_NAMELEN);
+				if (filldir(dirent, de->name, size, f->f_pos, de->ino, DT_UNKNOWN) < 0) {
+					brelse(bh);
+					return 0;
+				}
+			}
+			offset += BFS_DIRENT_SIZE;
+			f->f_pos += BFS_DIRENT_SIZE;
+		} while (offset < BFS_BSIZE && f->f_pos < dir->i_size);
+		brelse(bh);
+	}
+
+	UPDATE_ATIME(dir);
+	return 0;	
+}
+
+struct file_operations bfs_dir_operations = {
+	read:		generic_read_dir,
+	readdir:	bfs_readdir,
+	fsync:		file_fsync,
+};
+
+extern void dump_imap(const char *, struct super_block *);
+
+static int bfs_create(struct inode * dir, struct dentry * dentry, int mode)
+{
+	int err;
+	struct inode * inode;
+	struct super_block * s = dir->i_sb;
+	unsigned long ino;
+
+	inode = new_inode(s);
+	if (!inode)
+		return -ENOSPC;
+	ino = find_first_zero_bit(s->su_imap, s->su_lasti);
+	if (ino > s->su_lasti) {
+		iput(inode);
+		return -ENOSPC;
+	}
+	set_bit(ino, s->su_imap);	
+	s->su_freei--;
+	inode->i_uid = current->fsuid;
+	inode->i_gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid;
+	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+	inode->i_blocks = inode->i_blksize = 0;
+	inode->i_op = &bfs_file_inops;
+	inode->i_fop = &bfs_file_operations;
+	inode->i_mapping->a_ops = &bfs_aops;
+	inode->i_mode = mode;
+	inode->i_ino = inode->iu_dsk_ino = ino;
+	inode->iu_sblock = inode->iu_eblock = 0;
+	insert_inode_hash(inode);
+        mark_inode_dirty(inode);
+	dump_imap("create",s);
+
+	err = bfs_add_entry(dir, dentry->d_name.name, dentry->d_name.len, inode->i_ino);
+	if (err) {
+		inode->i_nlink--;
+		mark_inode_dirty(inode);
+		iput(inode);
+		return err;
+	}
+	d_instantiate(dentry, inode);
+	return 0;
+}
+
+static struct dentry * bfs_lookup(struct inode * dir, struct dentry * dentry)
+{
+	struct inode * inode = NULL;
+	struct buffer_head * bh;
+	struct bfs_dirent * de;
+
+	if (dentry->d_name.len > BFS_NAMELEN)
+		return ERR_PTR(-ENAMETOOLONG);
+
+	bh = bfs_find_entry(dir, dentry->d_name.name, dentry->d_name.len, &de);
+	if (bh) {
+		unsigned long ino = le32_to_cpu(de->ino);
+		brelse(bh);
+		inode = iget(dir->i_sb, ino);
+		if (!inode)
+			return ERR_PTR(-EACCES);
+	}
+	d_add(dentry, inode);
+	return NULL;
+}
+
+static int bfs_link(struct dentry * old, struct inode * dir, struct dentry * new)
+{
+	struct inode * inode = old->d_inode;
+	int err;
+
+	if (S_ISDIR(inode->i_mode))
+		return -EPERM;
+
+	err = bfs_add_entry(dir, new->d_name.name, new->d_name.len, inode->i_ino);
+	if (err)
+		return err;
+	inode->i_nlink++;
+	inode->i_ctime = CURRENT_TIME;
+	mark_inode_dirty(inode);
+	atomic_inc(&inode->i_count);
+	d_instantiate(new, inode);
+	return 0;
+}
+
+
+static int bfs_unlink(struct inode * dir, struct dentry * dentry)
+{
+	int error = -ENOENT;
+	struct inode * inode;
+	struct buffer_head * bh;
+	struct bfs_dirent * de;
+
+	inode = dentry->d_inode;
+	bh = bfs_find_entry(dir, dentry->d_name.name, dentry->d_name.len, &de);
+	if (!bh || de->ino != inode->i_ino) 
+		goto out_brelse;
+
+	if (!inode->i_nlink) {
+		printf("unlinking non-existent file %s:%lu (nlink=%d)\n", bdevname(inode->i_dev), 
+				inode->i_ino, inode->i_nlink);
+		inode->i_nlink = 1;
+	}
+	de->ino = 0;
+	dir->i_version = ++event;
+	mark_buffer_dirty(bh);
+	dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+	mark_inode_dirty(dir);
+	inode->i_nlink--;
+	inode->i_ctime = dir->i_ctime;
+	mark_inode_dirty(inode);
+	error = 0;
+
+out_brelse:
+	brelse(bh);
+	return error;
+}
+
+static int bfs_rename(struct inode * old_dir, struct dentry * old_dentry, 
+			struct inode * new_dir, struct dentry * new_dentry)
+{
+	struct inode * old_inode, * new_inode;
+	struct buffer_head * old_bh, * new_bh;
+	struct bfs_dirent * old_de, * new_de;		
+	int error = -ENOENT;
+
+	old_bh = new_bh = NULL;
+	old_inode = old_dentry->d_inode;
+	if (S_ISDIR(old_inode->i_mode))
+		return -EINVAL;
+
+	old_bh = bfs_find_entry(old_dir, 
+				old_dentry->d_name.name, 
+				old_dentry->d_name.len, &old_de);
+
+	if (!old_bh || old_de->ino != old_inode->i_ino)
+		goto end_rename;
+
+	error = -EPERM;
+	new_inode = new_dentry->d_inode;
+	new_bh = bfs_find_entry(new_dir, 
+				new_dentry->d_name.name, 
+				new_dentry->d_name.len, &new_de);
+
+	if (new_bh && !new_inode) {
+		brelse(new_bh);
+		new_bh = NULL;
+	}
+	if (!new_bh) {
+		error = bfs_add_entry(new_dir, 
+					new_dentry->d_name.name,
+			 		new_dentry->d_name.len, old_inode->i_ino);
+		if (error)
+			goto end_rename;
+	}
+	old_de->ino = 0;
+	old_dir->i_ctime = old_dir->i_mtime = CURRENT_TIME;
+	old_dir->i_version = ++event;
+	mark_inode_dirty(old_dir);
+	if (new_inode) {
+		new_inode->i_nlink--;
+		new_inode->i_ctime = CURRENT_TIME;
+		mark_inode_dirty(new_inode);
+	}
+	mark_buffer_dirty(old_bh);
+	error = 0;
+
+end_rename:
+	brelse(old_bh);
+	brelse(new_bh);
+	return error;
+}
+
+struct inode_operations bfs_dir_inops = {
+	create:			bfs_create,
+	lookup:			bfs_lookup,
+	link:			bfs_link,
+	unlink:			bfs_unlink,
+	rename:			bfs_rename,
+};
+
+static int bfs_add_entry(struct inode * dir, const char * name, int namelen, int ino)
+{
+	struct buffer_head * bh;
+	struct bfs_dirent * de;
+	int block, sblock, eblock, off;
+	int i;
+
+	dprintf("name=%s, namelen=%d\n", name, namelen);
+
+	if (!namelen)
+		return -ENOENT;
+	if (namelen > BFS_NAMELEN)
+		return -ENAMETOOLONG;
+
+	sblock = dir->iu_sblock;
+	eblock = dir->iu_eblock;
+	for (block=sblock; block<=eblock; block++) {
+		bh = sb_bread(dir->i_sb, block);
+		if(!bh) 
+			return -ENOSPC;
+		for (off=0; off<BFS_BSIZE; off+=BFS_DIRENT_SIZE) {
+			de = (struct bfs_dirent *)(bh->b_data + off);
+			if (!de->ino) {
+				if ((block-sblock)*BFS_BSIZE + off >= dir->i_size) {
+					dir->i_size += BFS_DIRENT_SIZE;
+					dir->i_ctime = CURRENT_TIME;
+				}
+				dir->i_mtime = CURRENT_TIME;
+				mark_inode_dirty(dir);
+				dir->i_version = ++event;
+				de->ino = ino;
+				for (i=0; i<BFS_NAMELEN; i++)
+					de->name[i] = (i < namelen) ? name[i] : 0;
+				mark_buffer_dirty(bh);
+				brelse(bh);
+				return 0;
+			}
+		}
+		brelse(bh);
+	}
+	return -ENOSPC;
+}
+
+static inline int bfs_namecmp(int len, const char * name, const char * buffer)
+{
+	if (len < BFS_NAMELEN && buffer[len])
+		return 0;
+	return !memcmp(name, buffer, len);
+}
+
+static struct buffer_head * bfs_find_entry(struct inode * dir, 
+	const char * name, int namelen, struct bfs_dirent ** res_dir)
+{
+	unsigned long block, offset;
+	struct buffer_head * bh;
+	struct bfs_dirent * de;
+
+	*res_dir = NULL;
+	if (namelen > BFS_NAMELEN)
+		return NULL;
+	bh = NULL;
+	block = offset = 0;
+	while (block * BFS_BSIZE + offset < dir->i_size) {
+		if (!bh) {
+			bh = sb_bread(dir->i_sb, dir->iu_sblock + block);
+			if (!bh) {
+				block++;
+				continue;
+			}
+		}
+		de = (struct bfs_dirent *)(bh->b_data + offset);
+		offset += BFS_DIRENT_SIZE;
+		if (de->ino && bfs_namecmp(namelen, name, de->name)) {
+			*res_dir = de;
+			return bh;
+		}
+		if (offset < bh->b_size)
+			continue;
+		brelse(bh);
+		bh = NULL;
+		offset = 0;
+		block++;
+	}
+	brelse(bh);
+	return NULL;
+}
diff --git a/fs/bfs/file.c b/fs/bfs/file.c
new file mode 100644
index 00000000000000..d7a284392225be
--- /dev/null
+++ b/fs/bfs/file.c
@@ -0,0 +1,168 @@
+/*
+ *	fs/bfs/file.c
+ *	BFS file operations.
+ *	Copyright (C) 1999,2000 Tigran Aivazian <tigran@veritas.com>
+ */
+
+#include <linux/fs.h>
+#include <linux/locks.h>
+#include <linux/bfs_fs.h>
+#include <linux/smp_lock.h>
+#include "bfs_defs.h"
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define dprintf(x...)	printf(x)
+#else
+#define dprintf(x...)
+#endif
+
+struct file_operations bfs_file_operations = {
+	llseek: generic_file_llseek,
+	read:	generic_file_read,
+	write:	generic_file_write,
+	mmap:	generic_file_mmap,
+};
+
+static int bfs_move_block(unsigned long from, unsigned long to, kdev_t dev)
+{
+	struct buffer_head *bh, *new;
+
+	bh = bread(dev, from, BFS_BSIZE);
+	if (!bh)
+		return -EIO;
+	new = getblk(dev, to, BFS_BSIZE);
+	memcpy(new->b_data, bh->b_data, bh->b_size);
+	mark_buffer_dirty(new);
+	bforget(bh);
+	brelse(new);
+	return 0;
+}
+
+static int bfs_move_blocks(kdev_t dev, unsigned long start, unsigned long end, 
+				unsigned long where)
+{
+	unsigned long i;
+
+	dprintf("%08lx-%08lx->%08lx\n", start, end, where);
+	for (i = start; i <= end; i++)
+		if(bfs_move_block(i, where + i, dev)) {
+			dprintf("failed to move block %08lx -> %08lx\n", i, where + i);
+			return -EIO;
+		}
+	return 0;
+}
+
+static int bfs_get_block(struct inode * inode, long block, 
+	struct buffer_head * bh_result, int create)
+{
+	long phys;
+	int err;
+	struct super_block *sb = inode->i_sb;
+	struct buffer_head *sbh = sb->su_sbh;
+
+	if (block < 0 || block > sb->su_blocks)
+		return -EIO;
+
+	phys = inode->iu_sblock + block;
+	if (!create) {
+		if (phys <= inode->iu_eblock) {
+			dprintf("c=%d, b=%08lx, phys=%08lx (granted)\n", create, block, phys);
+			bh_result->b_dev = inode->i_dev;
+			bh_result->b_blocknr = phys;
+			bh_result->b_state |= (1UL << BH_Mapped);
+		}
+		return 0;
+	}
+
+	/* if the file is not empty and the requested block is within the range
+	   of blocks allocated for this file, we can grant it */
+	if (inode->i_size && phys <= inode->iu_eblock) {
+		dprintf("c=%d, b=%08lx, phys=%08lx (interim block granted)\n", 
+				create, block, phys);
+		bh_result->b_dev = inode->i_dev;
+		bh_result->b_blocknr = phys;
+		bh_result->b_state |= (1UL << BH_Mapped);
+		return 0;
+	}
+
+	/* the rest has to be protected against itself */
+	lock_kernel();
+
+	/* if the last data block for this file is the last allocated block, we can
+	   extend the file trivially, without moving it anywhere */
+	if (inode->iu_eblock == sb->su_lf_eblk) {
+		dprintf("c=%d, b=%08lx, phys=%08lx (simple extension)\n", 
+				create, block, phys);
+		bh_result->b_dev = inode->i_dev;
+		bh_result->b_blocknr = phys;
+		bh_result->b_state |= (1UL << BH_Mapped);
+		sb->su_freeb -= phys - inode->iu_eblock;
+		sb->su_lf_eblk = inode->iu_eblock = phys;
+		mark_inode_dirty(inode);
+		mark_buffer_dirty(sbh);
+		err = 0;
+		goto out;
+	}
+
+	/* Ok, we have to move this entire file to the next free block */
+	phys = sb->su_lf_eblk + 1;
+	if (inode->iu_sblock) { /* if data starts on block 0 then there is no data */
+		err = bfs_move_blocks(inode->i_dev, inode->iu_sblock, 
+				inode->iu_eblock, phys);
+		if (err) {
+			dprintf("failed to move ino=%08lx -> fs corruption\n", inode->i_ino);
+			goto out;
+		}
+	} else
+		err = 0;
+
+	dprintf("c=%d, b=%08lx, phys=%08lx (moved)\n", create, block, phys);
+	inode->iu_sblock = phys;
+	phys += block;
+	sb->su_lf_eblk = inode->iu_eblock = phys;
+
+	/* this assumes nothing can write the inode back while we are here
+	 * and thus update inode->i_blocks! (XXX)*/
+	sb->su_freeb -= inode->iu_eblock - inode->iu_sblock + 1 - inode->i_blocks;
+	mark_inode_dirty(inode);
+	mark_buffer_dirty(sbh);
+	bh_result->b_dev = inode->i_dev;
+	bh_result->b_blocknr = phys;
+	bh_result->b_state |= (1UL << BH_Mapped);
+out:
+	unlock_kernel();
+	return err;
+}
+
+static int bfs_writepage(struct page *page)
+{
+	return block_write_full_page(page, bfs_get_block);
+}
+
+static int bfs_readpage(struct file *file, struct page *page)
+{
+	return block_read_full_page(page, bfs_get_block);
+}
+
+static int bfs_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)
+{
+	return block_prepare_write(page, from, to, bfs_get_block);
+}
+
+static int bfs_bmap(struct address_space *mapping, long block)
+{
+	return generic_block_bmap(mapping, block, bfs_get_block);
+}
+
+struct address_space_operations bfs_aops = {
+	readpage:	bfs_readpage,
+	writepage:	bfs_writepage,
+	sync_page:	block_sync_page,
+	prepare_write:	bfs_prepare_write,
+	commit_write:	generic_commit_write,
+	bmap:		bfs_bmap,
+};
+
+struct inode_operations bfs_file_inops;
diff --git a/fs/bfs/inode.c b/fs/bfs/inode.c
new file mode 100644
index 00000000000000..f83f13f562007a
--- /dev/null
+++ b/fs/bfs/inode.c
@@ -0,0 +1,341 @@
+/*
+ *	fs/bfs/inode.c
+ *	BFS superblock and inode operations.
+ *	Copyright (C) 1999,2000 Tigran Aivazian <tigran@veritas.com>
+ *	From fs/minix, Copyright (C) 1991, 1992 Linus Torvalds.
+ */
+
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/locks.h>
+#include <linux/bfs_fs.h>
+#include <linux/smp_lock.h>
+
+#include <asm/uaccess.h>
+
+#include "bfs_defs.h"
+
+MODULE_AUTHOR("Tigran A. Aivazian <tigran@veritas.com>");
+MODULE_DESCRIPTION("SCO UnixWare BFS filesystem for Linux");
+MODULE_LICENSE("GPL");
+EXPORT_NO_SYMBOLS;
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define dprintf(x...)	printf(x)
+#else
+#define dprintf(x...)
+#endif
+
+void dump_imap(const char *prefix, struct super_block * s);
+
+static void bfs_read_inode(struct inode * inode)
+{
+	unsigned long ino = inode->i_ino;
+	kdev_t dev = inode->i_dev;
+	struct bfs_inode * di;
+	struct buffer_head * bh;
+	int block, off;
+
+	if (ino < BFS_ROOT_INO || ino > inode->i_sb->su_lasti) {
+		printf("Bad inode number %s:%08lx\n", bdevname(dev), ino);
+		make_bad_inode(inode);
+		return;
+	}
+
+	block = (ino - BFS_ROOT_INO)/BFS_INODES_PER_BLOCK + 1;
+	bh = sb_bread(inode->i_sb, block);
+	if (!bh) {
+		printf("Unable to read inode %s:%08lx\n", bdevname(dev), ino);
+		make_bad_inode(inode);
+		return;
+	}
+
+	off = (ino - BFS_ROOT_INO) % BFS_INODES_PER_BLOCK;
+	di = (struct bfs_inode *)bh->b_data + off;
+
+	inode->i_mode = 0x0000FFFF & di->i_mode;
+	if (di->i_vtype == BFS_VDIR) {
+		inode->i_mode |= S_IFDIR;
+		inode->i_op = &bfs_dir_inops;
+		inode->i_fop = &bfs_dir_operations;
+	} else if (di->i_vtype == BFS_VREG) {
+		inode->i_mode |= S_IFREG;
+		inode->i_op = &bfs_file_inops;
+		inode->i_fop = &bfs_file_operations;
+		inode->i_mapping->a_ops = &bfs_aops;
+	}
+
+	inode->i_uid = di->i_uid;
+	inode->i_gid = di->i_gid;
+	inode->i_nlink = di->i_nlink;
+	inode->i_size = BFS_FILESIZE(di);
+	inode->i_blocks = BFS_FILEBLOCKS(di);
+	inode->i_blksize = PAGE_SIZE;
+	inode->i_atime = di->i_atime;
+	inode->i_mtime = di->i_mtime;
+	inode->i_ctime = di->i_ctime;
+	inode->iu_dsk_ino = di->i_ino; /* can be 0 so we store a copy */
+	inode->iu_sblock = di->i_sblock;
+	inode->iu_eblock = di->i_eblock;
+
+	brelse(bh);
+}
+
+static void bfs_write_inode(struct inode * inode, int unused)
+{
+	unsigned long ino = inode->i_ino;
+	kdev_t dev = inode->i_dev;
+	struct bfs_inode * di;
+	struct buffer_head * bh;
+	int block, off;
+
+	if (ino < BFS_ROOT_INO || ino > inode->i_sb->su_lasti) {
+		printf("Bad inode number %s:%08lx\n", bdevname(dev), ino);
+		return;
+	}
+
+	lock_kernel();
+	block = (ino - BFS_ROOT_INO)/BFS_INODES_PER_BLOCK + 1;
+	bh = sb_bread(inode->i_sb, block);
+	if (!bh) {
+		printf("Unable to read inode %s:%08lx\n", bdevname(dev), ino);
+		unlock_kernel();
+		return;
+	}
+
+	off = (ino - BFS_ROOT_INO)%BFS_INODES_PER_BLOCK;
+	di = (struct bfs_inode *)bh->b_data + off;
+
+	if (inode->i_ino == BFS_ROOT_INO)
+		di->i_vtype = BFS_VDIR;
+	else
+		di->i_vtype = BFS_VREG;
+
+	di->i_ino = inode->i_ino;
+	di->i_mode = inode->i_mode;
+	di->i_uid = inode->i_uid;
+	di->i_gid = inode->i_gid;
+	di->i_nlink = inode->i_nlink;
+	di->i_atime = inode->i_atime;
+	di->i_mtime = inode->i_mtime;
+	di->i_ctime = inode->i_ctime;
+	di->i_sblock = inode->iu_sblock;
+	di->i_eblock = inode->iu_eblock;
+	di->i_eoffset = di->i_sblock * BFS_BSIZE + inode->i_size - 1;
+
+	mark_buffer_dirty(bh);
+	brelse(bh);
+	unlock_kernel();
+}
+
+static void bfs_delete_inode(struct inode * inode)
+{
+	unsigned long ino = inode->i_ino;
+	kdev_t dev = inode->i_dev;
+	struct bfs_inode * di;
+	struct buffer_head * bh;
+	int block, off;
+	struct super_block * s = inode->i_sb;
+
+	dprintf("ino=%08lx\n", inode->i_ino);
+
+	if (inode->i_ino < BFS_ROOT_INO || inode->i_ino > inode->i_sb->su_lasti) {
+		printf("invalid ino=%08lx\n", inode->i_ino);
+		return;
+	}
+	
+	inode->i_size = 0;
+	inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+	lock_kernel();
+	mark_inode_dirty(inode);
+	block = (ino - BFS_ROOT_INO)/BFS_INODES_PER_BLOCK + 1;
+	bh = sb_bread(s, block);
+	if (!bh) {
+		printf("Unable to read inode %s:%08lx\n", bdevname(dev), ino);
+		unlock_kernel();
+		return;
+	}
+	off = (ino - BFS_ROOT_INO)%BFS_INODES_PER_BLOCK;
+	di = (struct bfs_inode *)bh->b_data + off;
+	if (di->i_ino) {
+		s->su_freeb += BFS_FILEBLOCKS(di);
+		s->su_freei++;
+		clear_bit(di->i_ino, s->su_imap);
+		dump_imap("delete_inode", s);
+	}
+	di->i_ino = 0;
+	di->i_sblock = 0;
+	mark_buffer_dirty(bh);
+	brelse(bh);
+
+	/* if this was the last file, make the previous 
+	   block "last files last block" even if there is no real file there,
+	   saves us 1 gap */
+	if (s->su_lf_eblk == inode->iu_eblock) {
+		s->su_lf_eblk = inode->iu_sblock - 1;
+		mark_buffer_dirty(s->su_sbh);
+	}
+	unlock_kernel();
+	clear_inode(inode);
+}
+
+static void bfs_put_super(struct super_block *s)
+{
+	brelse(s->su_sbh);
+	kfree(s->su_imap);
+}
+
+static int bfs_statfs(struct super_block *s, struct statfs *buf)
+{
+	buf->f_type = BFS_MAGIC;
+	buf->f_bsize = s->s_blocksize;
+	buf->f_blocks = s->su_blocks;
+	buf->f_bfree = buf->f_bavail = s->su_freeb;
+	buf->f_files = s->su_lasti + 1 - BFS_ROOT_INO;
+	buf->f_ffree = s->su_freei;
+	buf->f_fsid.val[0] = kdev_t_to_nr(s->s_dev);
+	buf->f_namelen = BFS_NAMELEN;
+	return 0;
+}
+
+static void bfs_write_super(struct super_block *s)
+{
+	if (!(s->s_flags & MS_RDONLY))
+		mark_buffer_dirty(s->su_sbh);
+	s->s_dirt = 0;
+}
+
+static struct super_operations bfs_sops = {
+	read_inode:	bfs_read_inode,
+	write_inode:	bfs_write_inode,
+	delete_inode:	bfs_delete_inode,
+	put_super:	bfs_put_super,
+	write_super:	bfs_write_super,
+	statfs:		bfs_statfs,
+};
+
+void dump_imap(const char *prefix, struct super_block * s)
+{
+#if 0
+	int i;
+	char *tmpbuf = (char *)get_free_page(GFP_KERNEL);
+
+	if (!tmpbuf)
+		return;
+	for (i=s->su_lasti; i>=0; i--) {
+		if (i>PAGE_SIZE-100) break;
+		if (test_bit(i, s->su_imap))
+			strcat(tmpbuf, "1");
+		else
+			strcat(tmpbuf, "0");
+	}
+	printk(KERN_ERR "BFS-fs: %s: lasti=%08lx <%s>\n", prefix, s->su_lasti, tmpbuf);
+	free_page((unsigned long)tmpbuf);
+#endif
+}
+
+static struct super_block * bfs_read_super(struct super_block * s, 
+	void * data, int silent)
+{
+	kdev_t dev;
+	struct buffer_head * bh;
+	struct bfs_super_block * bfs_sb;
+	struct inode * inode;
+	int i, imap_len;
+
+	dev = s->s_dev;
+	set_blocksize(dev, BFS_BSIZE);
+	s->s_blocksize = BFS_BSIZE;
+	s->s_blocksize_bits = BFS_BSIZE_BITS;
+
+	bh = sb_bread(s, 0);
+	if(!bh)
+		goto out;
+	bfs_sb = (struct bfs_super_block *)bh->b_data;
+	if (bfs_sb->s_magic != BFS_MAGIC) {
+		if (!silent)
+			printf("No BFS filesystem on %s (magic=%08x)\n", 
+				bdevname(dev), bfs_sb->s_magic);
+		goto out;
+	}
+	if (BFS_UNCLEAN(bfs_sb, s) && !silent)
+		printf("%s is unclean, continuing\n", bdevname(dev));
+
+	s->s_magic = BFS_MAGIC;
+	s->su_bfs_sb = bfs_sb;
+	s->su_sbh = bh;
+	s->su_lasti = (bfs_sb->s_start - BFS_BSIZE)/sizeof(struct bfs_inode) 
+			+ BFS_ROOT_INO - 1;
+
+	imap_len = s->su_lasti/8 + 1;
+	s->su_imap = kmalloc(imap_len, GFP_KERNEL);
+	if (!s->su_imap)
+		goto out;
+	memset(s->su_imap, 0, imap_len);
+	for (i=0; i<BFS_ROOT_INO; i++) 
+		set_bit(i, s->su_imap);
+
+	s->s_op = &bfs_sops;
+	inode = iget(s, BFS_ROOT_INO);
+	if (!inode) {
+		kfree(s->su_imap);
+		goto out;
+	}
+	s->s_root = d_alloc_root(inode);
+	if (!s->s_root) {
+		iput(inode);
+		kfree(s->su_imap);
+		goto out;
+	}
+
+	s->su_blocks = (bfs_sb->s_end + 1)>>BFS_BSIZE_BITS; /* for statfs(2) */
+	s->su_freeb = (bfs_sb->s_end + 1 - bfs_sb->s_start)>>BFS_BSIZE_BITS;
+	s->su_freei = 0;
+	s->su_lf_eblk = 0;
+	s->su_lf_sblk = 0;
+	s->su_lf_ioff = 0;
+	for (i=BFS_ROOT_INO; i<=s->su_lasti; i++) {
+		inode = iget(s,i);
+		if (inode->iu_dsk_ino == 0)
+			s->su_freei++;
+		else {
+			set_bit(i, s->su_imap);
+			s->su_freeb -= inode->i_blocks;
+			if (inode->iu_eblock > s->su_lf_eblk) {
+				s->su_lf_eblk = inode->iu_eblock;
+				s->su_lf_sblk = inode->iu_sblock;
+				s->su_lf_ioff = BFS_INO2OFF(i);
+			}
+		}
+		iput(inode);
+	}
+	if (!(s->s_flags & MS_RDONLY)) {
+		mark_buffer_dirty(bh);
+		s->s_dirt = 1;
+	} 
+	dump_imap("read_super", s);
+	return s;
+
+out:
+	brelse(bh);
+	return NULL;
+}
+
+static DECLARE_FSTYPE_DEV(bfs_fs_type, "bfs", bfs_read_super);
+
+static int __init init_bfs_fs(void)
+{
+	return register_filesystem(&bfs_fs_type);
+}
+
+static void __exit exit_bfs_fs(void)
+{
+	unregister_filesystem(&bfs_fs_type);
+}
+
+module_init(init_bfs_fs)
+module_exit(exit_bfs_fs)
diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
new file mode 100644
index 00000000000000..b46d9d832e962e
--- /dev/null
+++ b/fs/binfmt_aout.c
@@ -0,0 +1,542 @@
+/*
+ *  linux/fs/binfmt_aout.c
+ *
+ *  Copyright (C) 1991, 1992, 1996  Linus Torvalds
+ */
+
+#include <linux/module.h>
+
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/mman.h>
+#include <linux/a.out.h>
+#include <linux/errno.h>
+#include <linux/signal.h>
+#include <linux/string.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/stat.h>
+#include <linux/fcntl.h>
+#include <linux/ptrace.h>
+#include <linux/user.h>
+#include <linux/slab.h>
+#include <linux/binfmts.h>
+#include <linux/personality.h>
+#include <linux/init.h>
+
+#include <asm/system.h>
+#include <asm/uaccess.h>
+#include <asm/pgalloc.h>
+
+static int load_aout_binary(struct linux_binprm *, struct pt_regs * regs);
+static int load_aout_library(struct file*);
+static int aout_core_dump(long signr, struct pt_regs * regs, struct file *file);
+
+extern void dump_thread(struct pt_regs *, struct user *);
+
+static struct linux_binfmt aout_format = {
+	NULL, THIS_MODULE, load_aout_binary, load_aout_library, aout_core_dump, PAGE_SIZE
+};
+
+#define BAD_ADDR(x)	((unsigned long)(x) >= TASK_SIZE)
+
+static int set_brk(unsigned long start, unsigned long end)
+{
+	start = PAGE_ALIGN(start);
+	end = PAGE_ALIGN(end);
+	if (end > start) {
+		unsigned long addr;
+		down_write(&current->mm->mmap_sem);
+		addr = do_brk(start, end - start);
+		up_write(&current->mm->mmap_sem);
+		if (BAD_ADDR(addr))
+			return addr;
+	}
+	return 0;
+}
+
+/*
+ * These are the only things you should do on a core-file: use only these
+ * macros to write out all the necessary info.
+ */
+
+static int dump_write(struct file *file, const void *addr, int nr)
+{
+	return file->f_op->write(file, addr, nr, &file->f_pos) == nr;
+}
+
+#define DUMP_WRITE(addr, nr)	\
+	if (!dump_write(file, (void *)(addr), (nr))) \
+		goto end_coredump;
+
+#define DUMP_SEEK(offset) \
+if (file->f_op->llseek) { \
+	if (file->f_op->llseek(file,(offset),0) != (offset)) \
+ 		goto end_coredump; \
+} else file->f_pos = (offset)
+
+/*
+ * Routine writes a core dump image in the current directory.
+ * Currently only a stub-function.
+ *
+ * Note that setuid/setgid files won't make a core-dump if the uid/gid
+ * changed due to the set[u|g]id. It's enforced by the "current->mm->dumpable"
+ * field, which also makes sure the core-dumps won't be recursive if the
+ * dumping of the process results in another error..
+ */
+
+static int aout_core_dump(long signr, struct pt_regs * regs, struct file *file)
+{
+	mm_segment_t fs;
+	int has_dumped = 0;
+	unsigned long dump_start, dump_size;
+	struct user dump;
+#if defined(__alpha__)
+#       define START_DATA(u)	(u.start_data)
+#elif defined(__arm__)
+#	define START_DATA(u)	((u.u_tsize << PAGE_SHIFT) + u.start_code)
+#elif defined(__sparc__)
+#       define START_DATA(u)    (u.u_tsize)
+#elif defined(__i386__) || defined(__mc68000__) || defined(__arch_um__)
+#       define START_DATA(u)	(u.u_tsize << PAGE_SHIFT)
+#endif
+#ifdef __sparc__
+#       define START_STACK(u)   ((regs->u_regs[UREG_FP]) & ~(PAGE_SIZE - 1))
+#else
+#       define START_STACK(u)   (u.start_stack)
+#endif
+
+	fs = get_fs();
+	set_fs(KERNEL_DS);
+	has_dumped = 1;
+	current->flags |= PF_DUMPCORE;
+       	strncpy(dump.u_comm, current->comm, sizeof(current->comm));
+#ifndef __sparc__
+	dump.u_ar0 = (void *)(((unsigned long)(&dump.regs)) - ((unsigned long)(&dump)));
+#endif
+	dump.signal = signr;
+	dump_thread(regs, &dump);
+
+/* If the size of the dump file exceeds the rlimit, then see what would happen
+   if we wrote the stack, but not the data area.  */
+#ifdef __sparc__
+	if ((dump.u_dsize+dump.u_ssize) >
+	    current->rlim[RLIMIT_CORE].rlim_cur)
+		dump.u_dsize = 0;
+#else
+	if ((dump.u_dsize+dump.u_ssize+1) * PAGE_SIZE >
+	    current->rlim[RLIMIT_CORE].rlim_cur)
+		dump.u_dsize = 0;
+#endif
+
+/* Make sure we have enough room to write the stack and data areas. */
+#ifdef __sparc__
+	if ((dump.u_ssize) >
+	    current->rlim[RLIMIT_CORE].rlim_cur)
+		dump.u_ssize = 0;
+#else
+	if ((dump.u_ssize+1) * PAGE_SIZE >
+	    current->rlim[RLIMIT_CORE].rlim_cur)
+		dump.u_ssize = 0;
+#endif
+
+/* make sure we actually have a data and stack area to dump */
+	set_fs(USER_DS);
+#ifdef __sparc__
+	if (verify_area(VERIFY_READ, (void *) START_DATA(dump), dump.u_dsize))
+		dump.u_dsize = 0;
+	if (verify_area(VERIFY_READ, (void *) START_STACK(dump), dump.u_ssize))
+		dump.u_ssize = 0;
+#else
+	if (verify_area(VERIFY_READ, (void *) START_DATA(dump), dump.u_dsize << PAGE_SHIFT))
+		dump.u_dsize = 0;
+	if (verify_area(VERIFY_READ, (void *) START_STACK(dump), dump.u_ssize << PAGE_SHIFT))
+		dump.u_ssize = 0;
+#endif
+
+	set_fs(KERNEL_DS);
+/* struct user */
+	DUMP_WRITE(&dump,sizeof(dump));
+/* Now dump all of the user data.  Include malloced stuff as well */
+#ifndef __sparc__
+	DUMP_SEEK(PAGE_SIZE);
+#endif
+/* now we start writing out the user space info */
+	set_fs(USER_DS);
+/* Dump the data area */
+	if (dump.u_dsize != 0) {
+		dump_start = START_DATA(dump);
+#ifdef __sparc__
+		dump_size = dump.u_dsize;
+#else
+		dump_size = dump.u_dsize << PAGE_SHIFT;
+#endif
+		DUMP_WRITE(dump_start,dump_size);
+	}
+/* Now prepare to dump the stack area */
+	if (dump.u_ssize != 0) {
+		dump_start = START_STACK(dump);
+#ifdef __sparc__
+		dump_size = dump.u_ssize;
+#else
+		dump_size = dump.u_ssize << PAGE_SHIFT;
+#endif
+		DUMP_WRITE(dump_start,dump_size);
+	}
+/* Finally dump the task struct.  Not be used by gdb, but could be useful */
+	set_fs(KERNEL_DS);
+	DUMP_WRITE(current,sizeof(*current));
+end_coredump:
+	set_fs(fs);
+	return has_dumped;
+}
+
+/*
+ * create_aout_tables() parses the env- and arg-strings in new user
+ * memory and creates the pointer tables from them, and puts their
+ * addresses on the "stack", returning the new stack pointer value.
+ */
+static unsigned long * create_aout_tables(char * p, struct linux_binprm * bprm)
+{
+	char **argv, **envp;
+	unsigned long * sp;
+	int argc = bprm->argc;
+	int envc = bprm->envc;
+
+	sp = (unsigned long *) ((-(unsigned long)sizeof(char *)) & (unsigned long) p);
+#ifdef __sparc__
+	/* This imposes the proper stack alignment for a new process. */
+	sp = (unsigned long *) (((unsigned long) sp) & ~7);
+	if ((envc+argc+3)&1) --sp;
+#endif
+#ifdef __alpha__
+/* whee.. test-programs are so much fun. */
+	put_user(0, --sp);
+	put_user(0, --sp);
+	if (bprm->loader) {
+		put_user(0, --sp);
+		put_user(0x3eb, --sp);
+		put_user(bprm->loader, --sp);
+		put_user(0x3ea, --sp);
+	}
+	put_user(bprm->exec, --sp);
+	put_user(0x3e9, --sp);
+#endif
+	sp -= envc+1;
+	envp = (char **) sp;
+	sp -= argc+1;
+	argv = (char **) sp;
+#if defined(__i386__) || defined(__mc68000__) || defined(__arm__) || defined(__arch_um__)
+	put_user((unsigned long) envp,--sp);
+	put_user((unsigned long) argv,--sp);
+#endif
+	put_user(argc,--sp);
+	current->mm->arg_start = (unsigned long) p;
+	while (argc-->0) {
+		char c;
+		put_user(p,argv++);
+		do {
+			get_user(c,p++);
+		} while (c);
+	}
+	put_user(NULL,argv);
+	current->mm->arg_end = current->mm->env_start = (unsigned long) p;
+	while (envc-->0) {
+		char c;
+		put_user(p,envp++);
+		do {
+			get_user(c,p++);
+		} while (c);
+	}
+	put_user(NULL,envp);
+	current->mm->env_end = (unsigned long) p;
+	return sp;
+}
+
+/*
+ * These are the functions used to load a.out style executables and shared
+ * libraries.  There is no binary dependent code anywhere else.
+ */
+
+static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs)
+{
+	struct exec ex;
+	unsigned long error;
+	unsigned long fd_offset;
+	unsigned long rlim;
+	int retval;
+
+	ex = *((struct exec *) bprm->buf);		/* exec-header */
+	if ((N_MAGIC(ex) != ZMAGIC && N_MAGIC(ex) != OMAGIC &&
+	     N_MAGIC(ex) != QMAGIC && N_MAGIC(ex) != NMAGIC) ||
+	    N_TRSIZE(ex) || N_DRSIZE(ex) ||
+	    bprm->file->f_dentry->d_inode->i_size < ex.a_text+ex.a_data+N_SYMSIZE(ex)+N_TXTOFF(ex)) {
+		return -ENOEXEC;
+	}
+
+	fd_offset = N_TXTOFF(ex);
+
+	/* Check initial limits. This avoids letting people circumvent
+	 * size limits imposed on them by creating programs with large
+	 * arrays in the data or bss.
+	 */
+	rlim = current->rlim[RLIMIT_DATA].rlim_cur;
+	if (rlim >= RLIM_INFINITY)
+		rlim = ~0;
+	if (ex.a_data + ex.a_bss > rlim)
+		return -ENOMEM;
+
+	/* Flush all traces of the currently running executable */
+	retval = flush_old_exec(bprm);
+	if (retval)
+		return retval;
+
+	/* OK, This is the point of no return */
+#if defined(__alpha__)
+	SET_AOUT_PERSONALITY(bprm, ex);
+#elif defined(__sparc__)
+	set_personality(PER_SUNOS);
+#if !defined(__sparc_v9__)
+	memcpy(&current->thread.core_exec, &ex, sizeof(struct exec));
+#endif
+#else
+	set_personality(PER_LINUX);
+#endif
+
+	current->mm->end_code = ex.a_text +
+		(current->mm->start_code = N_TXTADDR(ex));
+	current->mm->end_data = ex.a_data +
+		(current->mm->start_data = N_DATADDR(ex));
+	current->mm->brk = ex.a_bss +
+		(current->mm->start_brk = N_BSSADDR(ex));
+
+	current->mm->rss = 0;
+	current->mm->mmap = NULL;
+	compute_creds(bprm);
+ 	current->flags &= ~PF_FORKNOEXEC;
+#ifdef __sparc__
+	if (N_MAGIC(ex) == NMAGIC) {
+		loff_t pos = fd_offset;
+		/* Fuck me plenty... */
+		/* <AOL></AOL> */
+		down_write(&current->mm->mmap_sem);
+		error = do_brk(N_TXTADDR(ex), ex.a_text);
+		up_write(&current->mm->mmap_sem);
+		bprm->file->f_op->read(bprm->file, (char *) N_TXTADDR(ex),
+			  ex.a_text, &pos);
+		down_write(&current->mm->mmap_sem);
+		error = do_brk(N_DATADDR(ex), ex.a_data);
+		up_write(&current->mm->mmap_sem);
+		bprm->file->f_op->read(bprm->file, (char *) N_DATADDR(ex),
+			  ex.a_data, &pos);
+		goto beyond_if;
+	}
+#endif
+
+	if (N_MAGIC(ex) == OMAGIC) {
+		unsigned long text_addr, map_size;
+		loff_t pos;
+
+		text_addr = N_TXTADDR(ex);
+
+#if defined(__alpha__) || defined(__sparc__)
+		pos = fd_offset;
+		map_size = ex.a_text+ex.a_data + PAGE_SIZE - 1;
+#else
+		pos = 32;
+		map_size = ex.a_text+ex.a_data;
+#endif
+		down_write(&current->mm->mmap_sem);
+		error = do_brk(text_addr & PAGE_MASK, map_size);
+		up_write(&current->mm->mmap_sem);
+		if (error != (text_addr & PAGE_MASK)) {
+			send_sig(SIGKILL, current, 0);
+			return error;
+		}
+
+		error = bprm->file->f_op->read(bprm->file, (char *)text_addr,
+			  ex.a_text+ex.a_data, &pos);
+		if ((signed long)error < 0) {
+			send_sig(SIGKILL, current, 0);
+			return error;
+		}
+			 
+		flush_icache_range(text_addr, text_addr+ex.a_text+ex.a_data);
+	} else {
+		static unsigned long error_time, error_time2;
+		if ((ex.a_text & 0xfff || ex.a_data & 0xfff) &&
+		    (N_MAGIC(ex) != NMAGIC) && (jiffies-error_time2) > 5*HZ)
+		{
+			printk(KERN_NOTICE "executable not page aligned\n");
+			error_time2 = jiffies;
+		}
+
+		if ((fd_offset & ~PAGE_MASK) != 0 &&
+		    (jiffies-error_time) > 5*HZ)
+		{
+			printk(KERN_WARNING 
+			       "fd_offset is not page aligned. Please convert program: %s\n",
+			       bprm->file->f_dentry->d_name.name);
+			error_time = jiffies;
+		}
+
+		if (!bprm->file->f_op->mmap||((fd_offset & ~PAGE_MASK) != 0)) {
+			loff_t pos = fd_offset;
+			down_write(&current->mm->mmap_sem);
+			do_brk(N_TXTADDR(ex), ex.a_text+ex.a_data);
+			up_write(&current->mm->mmap_sem);
+			bprm->file->f_op->read(bprm->file,(char *)N_TXTADDR(ex),
+					ex.a_text+ex.a_data, &pos);
+			flush_icache_range((unsigned long) N_TXTADDR(ex),
+					   (unsigned long) N_TXTADDR(ex) +
+					   ex.a_text+ex.a_data);
+			goto beyond_if;
+		}
+
+		down_write(&current->mm->mmap_sem);
+		error = do_mmap(bprm->file, N_TXTADDR(ex), ex.a_text,
+			PROT_READ | PROT_EXEC,
+			MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE,
+			fd_offset);
+		up_write(&current->mm->mmap_sem);
+
+		if (error != N_TXTADDR(ex)) {
+			send_sig(SIGKILL, current, 0);
+			return error;
+		}
+
+		down_write(&current->mm->mmap_sem);
+ 		error = do_mmap(bprm->file, N_DATADDR(ex), ex.a_data,
+				PROT_READ | PROT_WRITE | PROT_EXEC,
+				MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE,
+				fd_offset + ex.a_text);
+		up_write(&current->mm->mmap_sem);
+		if (error != N_DATADDR(ex)) {
+			send_sig(SIGKILL, current, 0);
+			return error;
+		}
+	}
+beyond_if:
+	set_binfmt(&aout_format);
+
+	retval = set_brk(current->mm->start_brk, current->mm->brk);
+	if (retval < 0) {
+		send_sig(SIGKILL, current, 0);
+		return retval;
+	}
+
+	retval = setup_arg_pages(bprm); 
+	if (retval < 0) { 
+		/* Someone check-me: is this error path enough? */ 
+		send_sig(SIGKILL, current, 0); 
+		return retval;
+	}
+
+	current->mm->start_stack =
+		(unsigned long) create_aout_tables((char *) bprm->p, bprm);
+#ifdef __alpha__
+	regs->gp = ex.a_gpvalue;
+#endif
+	start_thread(regs, ex.a_entry, current->mm->start_stack);
+	if (current->ptrace & PT_PTRACED)
+		send_sig(SIGTRAP, current, 0);
+	return 0;
+}
+
+static int load_aout_library(struct file *file)
+{
+	struct inode * inode;
+	unsigned long bss, start_addr, len;
+	unsigned long error;
+	int retval;
+	struct exec ex;
+
+	inode = file->f_dentry->d_inode;
+
+	retval = -ENOEXEC;
+	error = kernel_read(file, 0, (char *) &ex, sizeof(ex));
+	if (error != sizeof(ex))
+		goto out;
+
+	/* We come in here for the regular a.out style of shared libraries */
+	if ((N_MAGIC(ex) != ZMAGIC && N_MAGIC(ex) != QMAGIC) || N_TRSIZE(ex) ||
+	    N_DRSIZE(ex) || ((ex.a_entry & 0xfff) && N_MAGIC(ex) == ZMAGIC) ||
+	    inode->i_size < ex.a_text+ex.a_data+N_SYMSIZE(ex)+N_TXTOFF(ex)) {
+		goto out;
+	}
+
+	if (N_FLAGS(ex))
+		goto out;
+
+	/* For  QMAGIC, the starting address is 0x20 into the page.  We mask
+	   this off to get the starting address for the page */
+
+	start_addr =  ex.a_entry & 0xfffff000;
+
+	if ((N_TXTOFF(ex) & ~PAGE_MASK) != 0) {
+		static unsigned long error_time;
+		loff_t pos = N_TXTOFF(ex);
+
+		if ((jiffies-error_time) > 5*HZ)
+		{
+			printk(KERN_WARNING 
+			       "N_TXTOFF is not page aligned. Please convert library: %s\n",
+			       file->f_dentry->d_name.name);
+			error_time = jiffies;
+		}
+		
+		down_write(&current->mm->mmap_sem);
+		do_brk(start_addr, ex.a_text + ex.a_data + ex.a_bss);
+		up_write(&current->mm->mmap_sem);
+		
+		file->f_op->read(file, (char *)start_addr,
+			ex.a_text + ex.a_data, &pos);
+		flush_icache_range((unsigned long) start_addr,
+				   (unsigned long) start_addr + ex.a_text + ex.a_data);
+
+		retval = 0;
+		goto out;
+	}
+	/* Now use mmap to map the library into memory. */
+	down_write(&current->mm->mmap_sem);
+	error = do_mmap(file, start_addr, ex.a_text + ex.a_data,
+			PROT_READ | PROT_WRITE | PROT_EXEC,
+			MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE,
+			N_TXTOFF(ex));
+	up_write(&current->mm->mmap_sem);
+	retval = error;
+	if (error != start_addr)
+		goto out;
+
+	len = PAGE_ALIGN(ex.a_text + ex.a_data);
+	bss = ex.a_text + ex.a_data + ex.a_bss;
+	if (bss > len) {
+		down_write(&current->mm->mmap_sem);
+		error = do_brk(start_addr + len, bss - len);
+		up_write(&current->mm->mmap_sem);
+
+		retval = error;
+		if (error != start_addr + len)
+			goto out;
+	}
+	retval = 0;
+out:
+	return retval;
+}
+
+static int __init init_aout_binfmt(void)
+{
+	return register_binfmt(&aout_format);
+}
+
+static void __exit exit_aout_binfmt(void)
+{
+	unregister_binfmt(&aout_format);
+}
+
+EXPORT_NO_SYMBOLS;
+
+module_init(init_aout_binfmt);
+module_exit(exit_aout_binfmt);
+MODULE_LICENSE("GPL");
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
new file mode 100644
index 00000000000000..c01dd6712e2229
--- /dev/null
+++ b/fs/binfmt_elf.c
@@ -0,0 +1,1408 @@
+/*
+ * linux/fs/binfmt_elf.c
+ *
+ * These are the functions used to load ELF format executables as used
+ * on SVr4 machines.  Information on the format may be found in the book
+ * "UNIX SYSTEM V RELEASE 4 Programmers Guide: Ansi C and Programming Support
+ * Tools".
+ *
+ * Copyright 1993, 1994: Eric Youngdale (ericy@cais.com).
+ */
+
+#include <linux/module.h>
+
+#include <linux/fs.h>
+#include <linux/stat.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/mman.h>
+#include <linux/a.out.h>
+#include <linux/errno.h>
+#include <linux/signal.h>
+#include <linux/binfmts.h>
+#include <linux/string.h>
+#include <linux/file.h>
+#include <linux/fcntl.h>
+#include <linux/ptrace.h>
+#include <linux/slab.h>
+#include <linux/shm.h>
+#include <linux/personality.h>
+#include <linux/elfcore.h>
+#include <linux/init.h>
+#include <linux/highuid.h>
+#include <linux/smp_lock.h>
+#include <linux/compiler.h>
+#include <linux/highmem.h>
+
+#include <asm/uaccess.h>
+#include <asm/param.h>
+#include <asm/pgalloc.h>
+
+#define DLINFO_ITEMS 13
+
+#include <linux/elf.h>
+
+static int load_elf_binary(struct linux_binprm * bprm, struct pt_regs * regs);
+static int load_elf_library(struct file*);
+static unsigned long elf_map (struct file *, unsigned long, struct elf_phdr *, int, int);
+extern int dump_fpu (struct pt_regs *, elf_fpregset_t *);
+extern void dump_thread(struct pt_regs *, struct user *);
+
+#ifndef elf_addr_t
+#define elf_addr_t unsigned long
+#define elf_caddr_t char *
+#endif
+
+/*
+ * If we don't support core dumping, then supply a NULL so we
+ * don't even try.
+ */
+#ifdef USE_ELF_CORE_DUMP
+static int elf_core_dump(long signr, struct pt_regs * regs, struct file * file);
+#else
+#define elf_core_dump	NULL
+#endif
+
+#if ELF_EXEC_PAGESIZE > PAGE_SIZE
+# define ELF_MIN_ALIGN	ELF_EXEC_PAGESIZE
+#else
+# define ELF_MIN_ALIGN	PAGE_SIZE
+#endif
+
+#define ELF_PAGESTART(_v) ((_v) & ~(unsigned long)(ELF_MIN_ALIGN-1))
+#define ELF_PAGEOFFSET(_v) ((_v) & (ELF_MIN_ALIGN-1))
+#define ELF_PAGEALIGN(_v) (((_v) + ELF_MIN_ALIGN - 1) & ~(ELF_MIN_ALIGN - 1))
+
+static struct linux_binfmt elf_format = {
+	NULL, THIS_MODULE, load_elf_binary, load_elf_library, elf_core_dump, ELF_EXEC_PAGESIZE
+};
+
+#define BAD_ADDR(x)	((unsigned long)(x) > TASK_SIZE)
+
+static int set_brk(unsigned long start, unsigned long end)
+{
+	start = ELF_PAGEALIGN(start);
+	end = ELF_PAGEALIGN(end);
+	if (end > start) {
+		unsigned long addr;
+		down_write(&current->mm->mmap_sem);
+		addr = do_brk(start, end - start);
+		up_write(&current->mm->mmap_sem);
+		if (BAD_ADDR(addr))
+			return addr;
+	}
+	current->mm->start_brk = current->mm->brk = end;
+	return 0;
+}
+
+
+/* We need to explicitly zero any fractional pages
+   after the data section (i.e. bss).  This would
+   contain the junk from the file that should not
+   be in memory */
+
+
+static void padzero(unsigned long elf_bss)
+{
+	unsigned long nbyte;
+
+	nbyte = ELF_PAGEOFFSET(elf_bss);
+	if (nbyte) {
+		nbyte = ELF_MIN_ALIGN - nbyte;
+		clear_user((void *) elf_bss, nbyte);
+	}
+}
+
+static elf_addr_t * 
+create_elf_tables(char *p, int argc, int envc,
+		  struct elfhdr * exec,
+		  unsigned long load_addr,
+		  unsigned long load_bias,
+		  unsigned long interp_load_addr, int ibcs)
+{
+	elf_caddr_t *argv;
+	elf_caddr_t *envp;
+	elf_addr_t *sp, *csp;
+	char *k_platform, *u_platform;
+	long hwcap;
+	size_t platform_len = 0;
+	size_t len;
+
+	/*
+	 * Get hold of platform and hardware capabilities masks for
+	 * the machine we are running on.  In some cases (Sparc), 
+	 * this info is impossible to get, in others (i386) it is
+	 * merely difficult.
+	 */
+
+	hwcap = ELF_HWCAP;
+	k_platform = ELF_PLATFORM;
+
+	if (k_platform) {
+		platform_len = strlen(k_platform) + 1;
+		u_platform = p - platform_len;
+		__copy_to_user(u_platform, k_platform, platform_len);
+	} else
+		u_platform = p;
+
+#if defined(__i386__) && defined(CONFIG_SMP)
+	/*
+	 * In some cases (e.g. Hyper-Threading), we want to avoid L1 evictions
+	 * by the processes running on the same package. One thing we can do
+	 * is to shuffle the initial stack for them.
+	 *
+	 * The conditionals here are unneeded, but kept in to make the
+	 * code behaviour the same as pre change unless we have hyperthreaded
+	 * processors. This keeps Mr Marcelo Person happier but should be
+	 * removed for 2.5
+	 */
+	 
+	if(smp_num_siblings > 1)
+		u_platform = u_platform - ((current->pid % 64) << 7);
+#endif	
+
+	/*
+	 * Force 16 byte _final_ alignment here for generality.
+	 */
+	sp = (elf_addr_t *)(~15UL & (unsigned long)(u_platform));
+	csp = sp;
+	csp -= (1+DLINFO_ITEMS)*2 + (k_platform ? 2 : 0);
+#ifdef DLINFO_ARCH_ITEMS
+	csp -= DLINFO_ARCH_ITEMS*2;
+#endif
+	csp -= envc+1;
+	csp -= argc+1;
+	csp -= (!ibcs ? 3 : 1);	/* argc itself */
+	if ((unsigned long)csp & 15UL)
+		sp -= ((unsigned long)csp & 15UL) / sizeof(*sp);
+
+	/*
+	 * Put the ELF interpreter info on the stack
+	 */
+#define NEW_AUX_ENT(nr, id, val) \
+	  __put_user ((id), sp+(nr*2)); \
+	  __put_user ((val), sp+(nr*2+1)); \
+
+	sp -= 2;
+	NEW_AUX_ENT(0, AT_NULL, 0);
+	if (k_platform) {
+		sp -= 2;
+		NEW_AUX_ENT(0, AT_PLATFORM, (elf_addr_t)(unsigned long) u_platform);
+	}
+	sp -= DLINFO_ITEMS*2;
+	NEW_AUX_ENT( 0, AT_HWCAP, hwcap);
+	NEW_AUX_ENT( 1, AT_PAGESZ, ELF_EXEC_PAGESIZE);
+	NEW_AUX_ENT( 2, AT_CLKTCK, CLOCKS_PER_SEC);
+	NEW_AUX_ENT( 3, AT_PHDR, load_addr + exec->e_phoff);
+	NEW_AUX_ENT( 4, AT_PHENT, sizeof (struct elf_phdr));
+	NEW_AUX_ENT( 5, AT_PHNUM, exec->e_phnum);
+	NEW_AUX_ENT( 6, AT_BASE, interp_load_addr);
+	NEW_AUX_ENT( 7, AT_FLAGS, 0);
+	NEW_AUX_ENT( 8, AT_ENTRY, load_bias + exec->e_entry);
+	NEW_AUX_ENT( 9, AT_UID, (elf_addr_t) current->uid);
+	NEW_AUX_ENT(10, AT_EUID, (elf_addr_t) current->euid);
+	NEW_AUX_ENT(11, AT_GID, (elf_addr_t) current->gid);
+	NEW_AUX_ENT(12, AT_EGID, (elf_addr_t) current->egid);
+#ifdef ARCH_DLINFO
+	/* 
+	 * ARCH_DLINFO must come last so platform specific code can enforce
+	 * special alignment requirements on the AUXV if necessary (eg. PPC).
+	 */
+	ARCH_DLINFO;
+#endif
+#undef NEW_AUX_ENT
+
+	sp -= envc+1;
+	envp = (elf_caddr_t *) sp;
+	sp -= argc+1;
+	argv = (elf_caddr_t *) sp;
+	if (!ibcs) {
+		__put_user((elf_addr_t)(unsigned long) envp,--sp);
+		__put_user((elf_addr_t)(unsigned long) argv,--sp);
+	}
+
+	__put_user((elf_addr_t)argc,--sp);
+	current->mm->arg_start = current->mm->arg_end = (unsigned long) p;
+	while (argc-->0) {
+		__put_user((elf_caddr_t)(unsigned long)p,argv++);
+		len = strnlen_user(p, PAGE_SIZE*MAX_ARG_PAGES);
+		if (!len || len > PAGE_SIZE*MAX_ARG_PAGES)
+			return NULL;
+		p += len;
+	}
+	__put_user(NULL, argv);
+	current->mm->arg_end = current->mm->env_start = (unsigned long) p;
+	while (envc-->0) {
+		__put_user((elf_caddr_t)(unsigned long)p,envp++);
+		len = strnlen_user(p, PAGE_SIZE*MAX_ARG_PAGES);
+		if (!len || len > PAGE_SIZE*MAX_ARG_PAGES)
+			return NULL;
+		p += len;
+	}
+	__put_user(NULL, envp);
+	current->mm->env_end = (unsigned long) p;
+	return sp;
+}
+
+#ifndef elf_map
+
+static inline unsigned long
+elf_map (struct file *filep, unsigned long addr, struct elf_phdr *eppnt, int prot, int type)
+{
+	unsigned long map_addr;
+
+	down_write(&current->mm->mmap_sem);
+	map_addr = do_mmap(filep, ELF_PAGESTART(addr),
+			   eppnt->p_filesz + ELF_PAGEOFFSET(eppnt->p_vaddr), prot, type,
+			   eppnt->p_offset - ELF_PAGEOFFSET(eppnt->p_vaddr));
+	up_write(&current->mm->mmap_sem);
+	return(map_addr);
+}
+
+#endif /* !elf_map */
+
+/* This is much more generalized than the library routine read function,
+   so we keep this separate.  Technically the library read function
+   is only provided so that we can read a.out libraries that have
+   an ELF header */
+
+static unsigned long load_elf_interp(struct elfhdr * interp_elf_ex,
+				     struct file * interpreter,
+				     unsigned long *interp_load_addr)
+{
+	struct elf_phdr *elf_phdata;
+	struct elf_phdr *eppnt;
+	unsigned long load_addr = 0;
+	int load_addr_set = 0;
+	unsigned long last_bss = 0, elf_bss = 0;
+	unsigned long error = ~0UL;
+	int retval, i, size;
+
+	/* First of all, some simple consistency checks */
+	if (interp_elf_ex->e_type != ET_EXEC &&
+	    interp_elf_ex->e_type != ET_DYN)
+		goto out;
+	if (!elf_check_arch(interp_elf_ex))
+		goto out;
+	if (!interpreter->f_op || !interpreter->f_op->mmap)
+		goto out;
+
+	/*
+	 * If the size of this structure has changed, then punt, since
+	 * we will be doing the wrong thing.
+	 */
+	if (interp_elf_ex->e_phentsize != sizeof(struct elf_phdr))
+		goto out;
+
+	if (interp_elf_ex->e_phnum < 1 ||
+	    interp_elf_ex->e_phnum > 65536U / sizeof(struct elf_phdr))
+		goto out;
+
+	/* Now read in all of the header information */
+
+	size = sizeof(struct elf_phdr) * interp_elf_ex->e_phnum;
+	if (size > ELF_MIN_ALIGN)
+		goto out;
+	elf_phdata = (struct elf_phdr *) kmalloc(size, GFP_KERNEL);
+	if (!elf_phdata)
+		goto out;
+
+	retval = kernel_read(interpreter,interp_elf_ex->e_phoff,(char *)elf_phdata,size);
+	error = -EIO;
+	if (retval != size) {
+		if (retval < 0)
+			error = retval;	
+		goto out_close;
+	}
+
+	eppnt = elf_phdata;
+	for (i=0; i<interp_elf_ex->e_phnum; i++, eppnt++) {
+	  if (eppnt->p_type == PT_LOAD) {
+	    int elf_type = MAP_PRIVATE | MAP_DENYWRITE;
+	    int elf_prot = 0;
+	    unsigned long vaddr = 0;
+	    unsigned long k, map_addr;
+
+	    if (eppnt->p_flags & PF_R) elf_prot =  PROT_READ;
+	    if (eppnt->p_flags & PF_W) elf_prot |= PROT_WRITE;
+	    if (eppnt->p_flags & PF_X) elf_prot |= PROT_EXEC;
+	    vaddr = eppnt->p_vaddr;
+	    if (interp_elf_ex->e_type == ET_EXEC || load_addr_set)
+	    	elf_type |= MAP_FIXED;
+
+	    map_addr = elf_map(interpreter, load_addr + vaddr, eppnt, elf_prot, elf_type);
+	    if (BAD_ADDR(map_addr))
+	    	goto out_close;
+
+	    if (!load_addr_set && interp_elf_ex->e_type == ET_DYN) {
+		load_addr = map_addr - ELF_PAGESTART(vaddr);
+		load_addr_set = 1;
+	    }
+
+	    /*
+	     * Check to see if the section's size will overflow the
+	     * allowed task size. Note that p_filesz must always be
+	     * <= p_memsize so it is only necessary to check p_memsz.
+	     */
+	    k = load_addr + eppnt->p_vaddr;
+	    if (k > TASK_SIZE || eppnt->p_filesz > eppnt->p_memsz ||
+		eppnt->p_memsz > TASK_SIZE || TASK_SIZE - eppnt->p_memsz < k) {
+	        error = -ENOMEM;
+		goto out_close;
+	    }
+
+	    /*
+	     * Find the end of the file mapping for this phdr, and keep
+	     * track of the largest address we see for this.
+	     */
+	    k = load_addr + eppnt->p_vaddr + eppnt->p_filesz;
+	    if (k > elf_bss)
+		elf_bss = k;
+
+	    /*
+	     * Do the same thing for the memory mapping - between
+	     * elf_bss and last_bss is the bss section.
+	     */
+	    k = load_addr + eppnt->p_memsz + eppnt->p_vaddr;
+	    if (k > last_bss)
+		last_bss = k;
+	  }
+	}
+
+	/* Now use mmap to map the library into memory. */
+
+	/*
+	 * Now fill out the bss section.  First pad the last page up
+	 * to the page boundary, and then perform a mmap to make sure
+	 * that there are zero-mapped pages up to and including the 
+	 * last bss page.
+	 */
+	padzero(elf_bss);
+	elf_bss = ELF_PAGESTART(elf_bss + ELF_MIN_ALIGN - 1);	/* What we have mapped so far */
+
+	/* Map the last of the bss segment */
+	if (last_bss > elf_bss) {
+		down_write(&current->mm->mmap_sem);
+		error = do_brk(elf_bss, last_bss - elf_bss);
+		up_write(&current->mm->mmap_sem);
+		if (BAD_ADDR(error))
+			goto out_close;
+	}
+
+	*interp_load_addr = load_addr;
+	/*
+	 * XXX: is everything deallocated properly if this happens
+	 * to be ~0UL (that is, we succeeded, but the header is broken
+	 * and thus the caller will think that we failed)? We'd better
+	 * switch to out-of-band error reporting.
+	 */
+	error = ((unsigned long) interp_elf_ex->e_entry) + load_addr;
+
+out_close:
+	kfree(elf_phdata);
+out:
+	return error;
+}
+
+static unsigned long load_aout_interp(struct exec * interp_ex,
+			     struct file * interpreter)
+{
+	unsigned long text_data, elf_entry = ~0UL;
+	char * addr;
+	loff_t offset;
+
+	current->mm->end_code = interp_ex->a_text;
+	text_data = interp_ex->a_text + interp_ex->a_data;
+	current->mm->end_data = text_data;
+	current->mm->brk = interp_ex->a_bss + text_data;
+
+	switch (N_MAGIC(*interp_ex)) {
+	case OMAGIC:
+		offset = 32;
+		addr = (char *) 0;
+		break;
+	case ZMAGIC:
+	case QMAGIC:
+		offset = N_TXTOFF(*interp_ex);
+		addr = (char *) N_TXTADDR(*interp_ex);
+		break;
+	default:
+		goto out;
+	}
+
+	down_write(&current->mm->mmap_sem);
+	do_brk(0, text_data);
+	up_write(&current->mm->mmap_sem);
+
+	if (!interpreter->f_op || !interpreter->f_op->read)
+		goto out;
+	if (interpreter->f_op->read(interpreter, addr, text_data, &offset) < 0)
+		goto out;
+	flush_icache_range((unsigned long)addr,
+	                   (unsigned long)addr + text_data);
+
+	down_write(&current->mm->mmap_sem);
+	do_brk(ELF_PAGESTART(text_data + ELF_MIN_ALIGN - 1),
+		interp_ex->a_bss);
+	up_write(&current->mm->mmap_sem);
+
+	elf_entry = interp_ex->a_entry;
+
+out:
+	return elf_entry;
+}
+
+/*
+ * These are the functions used to load ELF style executables and shared
+ * libraries.  There is no binary dependent code anywhere else.
+ */
+
+#define INTERPRETER_NONE 0
+#define INTERPRETER_AOUT 1
+#define INTERPRETER_ELF 2
+
+
+static int load_elf_binary(struct linux_binprm * bprm, struct pt_regs * regs)
+{
+	struct file *interpreter = NULL; /* to shut gcc up */
+ 	unsigned long load_addr = 0, load_bias = 0;
+	int load_addr_set = 0;
+	char * elf_interpreter = NULL;
+	unsigned int interpreter_type = INTERPRETER_NONE;
+	unsigned char ibcs2_interpreter = 0;
+	unsigned long error;
+	struct elf_phdr * elf_ppnt, *elf_phdata;
+	unsigned long elf_bss, k, elf_brk;
+	int elf_exec_fileno;
+	int retval, i;
+	unsigned int size;
+	unsigned long elf_entry, interp_load_addr = 0;
+	unsigned long start_code, end_code, start_data, end_data;
+	unsigned long reloc_func_desc = 0;
+	struct elfhdr elf_ex;
+	struct elfhdr interp_elf_ex;
+  	struct exec interp_ex;
+	char passed_fileno[6];
+	struct files_struct *files;
+	
+	/* Get the exec-header */
+	elf_ex = *((struct elfhdr *) bprm->buf);
+
+	retval = -ENOEXEC;
+	/* First of all, some simple consistency checks */
+	if (memcmp(elf_ex.e_ident, ELFMAG, SELFMAG) != 0)
+		goto out;
+
+	if (elf_ex.e_type != ET_EXEC && elf_ex.e_type != ET_DYN)
+		goto out;
+	if (!elf_check_arch(&elf_ex))
+		goto out;
+	if (!bprm->file->f_op||!bprm->file->f_op->mmap)
+		goto out;
+
+	/* Now read in all of the header information */
+
+	if (elf_ex.e_phentsize != sizeof(struct elf_phdr))
+		goto out;
+	if (elf_ex.e_phnum < 1 ||
+	    elf_ex.e_phnum > 65536U / sizeof(struct elf_phdr))
+		goto out;
+	size = elf_ex.e_phnum * sizeof(struct elf_phdr);
+	retval = -ENOMEM;
+	elf_phdata = (struct elf_phdr *) kmalloc(size, GFP_KERNEL);
+	if (!elf_phdata)
+		goto out;
+
+	retval = kernel_read(bprm->file, elf_ex.e_phoff, (char *) elf_phdata, size);
+	if (retval != size) {
+		if (retval >= 0)
+			retval = -EIO;
+		goto out_free_ph;
+	}
+
+	files = current->files;		/* Refcounted so ok */
+	retval = unshare_files();
+	if (retval < 0)
+		goto out_free_ph;
+	if (files == current->files) {
+		put_files_struct(files);
+		files = NULL;
+	}
+
+	/* exec will make our files private anyway, but for the a.out
+	   loader stuff we need to do it earlier */
+	   
+	retval = get_unused_fd();
+	if (retval < 0)
+		goto out_free_fh;
+	get_file(bprm->file);
+	fd_install(elf_exec_fileno = retval, bprm->file);
+
+	elf_ppnt = elf_phdata;
+	elf_bss = 0;
+	elf_brk = 0;
+
+	start_code = ~0UL;
+	end_code = 0;
+	start_data = 0;
+	end_data = 0;
+
+	for (i = 0; i < elf_ex.e_phnum; i++) {
+		if (elf_ppnt->p_type == PT_INTERP) {
+			/* This is the program interpreter used for
+			 * shared libraries - for now assume that this
+			 * is an a.out format binary
+			 */
+
+			retval = -ENOEXEC;
+			if (elf_ppnt->p_filesz > PATH_MAX || 
+			    elf_ppnt->p_filesz < 2)
+				goto out_free_file;
+
+			retval = -ENOMEM;
+			elf_interpreter = (char *) kmalloc(elf_ppnt->p_filesz,
+							   GFP_KERNEL);
+			if (!elf_interpreter)
+				goto out_free_file;
+
+			retval = kernel_read(bprm->file, elf_ppnt->p_offset,
+					   elf_interpreter,
+					   elf_ppnt->p_filesz);
+			if (retval != elf_ppnt->p_filesz) {
+				if (retval >= 0)
+					retval = -EIO;
+				goto out_free_interp;
+			}
+			/* make sure path is NULL terminated */
+			retval = -ENOEXEC;
+			if (elf_interpreter[elf_ppnt->p_filesz - 1] != '\0')
+				goto out_free_interp;
+
+			/* If the program interpreter is one of these two,
+			 * then assume an iBCS2 image. Otherwise assume
+			 * a native linux image.
+			 */
+			if (strcmp(elf_interpreter,"/usr/lib/libc.so.1") == 0 ||
+			    strcmp(elf_interpreter,"/usr/lib/ld.so.1") == 0)
+				ibcs2_interpreter = 1;
+#if 0
+			printk("Using ELF interpreter %s\n", elf_interpreter);
+#endif
+
+			SET_PERSONALITY(elf_ex, ibcs2_interpreter);
+
+			interpreter = open_exec(elf_interpreter);
+			retval = PTR_ERR(interpreter);
+			if (IS_ERR(interpreter))
+				goto out_free_interp;
+			retval = kernel_read(interpreter, 0, bprm->buf, BINPRM_BUF_SIZE);
+			if (retval != BINPRM_BUF_SIZE) {
+				if (retval >= 0)
+					retval = -EIO;
+				goto out_free_dentry;
+			}
+
+			/* Get the exec headers */
+			interp_ex = *((struct exec *) bprm->buf);
+			interp_elf_ex = *((struct elfhdr *) bprm->buf);
+			break;
+		}
+		elf_ppnt++;
+	}
+
+	/* Some simple consistency checks for the interpreter */
+	if (elf_interpreter) {
+		interpreter_type = INTERPRETER_ELF | INTERPRETER_AOUT;
+
+		/* Now figure out which format our binary is */
+		if ((N_MAGIC(interp_ex) != OMAGIC) &&
+		    (N_MAGIC(interp_ex) != ZMAGIC) &&
+		    (N_MAGIC(interp_ex) != QMAGIC))
+			interpreter_type = INTERPRETER_ELF;
+
+		if (memcmp(interp_elf_ex.e_ident, ELFMAG, SELFMAG) != 0)
+			interpreter_type &= ~INTERPRETER_ELF;
+
+		retval = -ELIBBAD;
+		if (!interpreter_type)
+			goto out_free_dentry;
+
+		/* Make sure only one type was selected */
+		if ((interpreter_type & INTERPRETER_ELF) &&
+		     interpreter_type != INTERPRETER_ELF) {
+	     		// FIXME - ratelimit this before re-enabling
+			// printk(KERN_WARNING "ELF: Ambiguous type, using ELF\n");
+			interpreter_type = INTERPRETER_ELF;
+		}
+		/* Verify the interpreter has a valid arch */
+		if ((interpreter_type == INTERPRETER_ELF) &&
+		    !elf_check_arch(&interp_elf_ex))
+			goto out_free_dentry;
+	} else {
+		/* Executables without an interpreter also need a personality  */
+		SET_PERSONALITY(elf_ex, ibcs2_interpreter);
+	}
+
+	/* OK, we are done with that, now set up the arg stuff,
+	   and then start this sucker up */
+
+	if (!bprm->sh_bang) {
+		char * passed_p;
+
+		if (interpreter_type == INTERPRETER_AOUT) {
+		  sprintf(passed_fileno, "%d", elf_exec_fileno);
+		  passed_p = passed_fileno;
+
+		  if (elf_interpreter) {
+		    retval = copy_strings_kernel(1,&passed_p,bprm);
+			if (retval)
+				goto out_free_dentry; 
+		    bprm->argc++;
+		  }
+		}
+	}
+
+	/* Flush all traces of the currently running executable */
+	retval = flush_old_exec(bprm);
+	if (retval)
+		goto out_free_dentry;
+
+	/* Discard our unneeded old files struct */
+	if (files) {
+		steal_locks(files);
+		put_files_struct(files);
+		files = NULL;
+	}
+
+	/* OK, This is the point of no return */
+	current->mm->start_data = 0;
+	current->mm->end_data = 0;
+	current->mm->end_code = 0;
+	current->mm->mmap = NULL;
+	current->flags &= ~PF_FORKNOEXEC;
+	elf_entry = (unsigned long) elf_ex.e_entry;
+
+	/* Do this so that we can load the interpreter, if need be.  We will
+	   change some of these later */
+	current->mm->rss = 0;
+	retval = setup_arg_pages(bprm);
+	if (retval < 0) {
+		send_sig(SIGKILL, current, 0);
+		return retval;
+	}
+	
+	current->mm->start_stack = bprm->p;
+
+	/* Now we do a little grungy work by mmaping the ELF image into
+	   the correct location in memory.  At this point, we assume that
+	   the image should be loaded at fixed address, not at a variable
+	   address. */
+
+	for(i = 0, elf_ppnt = elf_phdata; i < elf_ex.e_phnum; i++, elf_ppnt++) {
+		int elf_prot = 0, elf_flags;
+		unsigned long vaddr;
+
+		if (elf_ppnt->p_type != PT_LOAD)
+			continue;
+
+		if (unlikely (elf_brk > elf_bss)) {
+			unsigned long nbyte;
+	            
+			/* There was a PT_LOAD segment with p_memsz > p_filesz
+			   before this one. Map anonymous pages, if needed,
+			   and clear the area.  */
+			retval = set_brk (elf_bss + load_bias,
+					  elf_brk + load_bias);
+			if (retval) {
+				send_sig(SIGKILL, current, 0);
+				goto out_free_dentry;
+			}
+			nbyte = ELF_PAGEOFFSET(elf_bss);
+			if (nbyte) {
+				nbyte = ELF_MIN_ALIGN - nbyte;
+				if (nbyte > elf_brk - elf_bss)
+					nbyte = elf_brk - elf_bss;
+				clear_user((void *) elf_bss + load_bias, nbyte);
+			}
+		}
+
+		if (elf_ppnt->p_flags & PF_R) elf_prot |= PROT_READ;
+		if (elf_ppnt->p_flags & PF_W) elf_prot |= PROT_WRITE;
+		if (elf_ppnt->p_flags & PF_X) elf_prot |= PROT_EXEC;
+
+		elf_flags = MAP_PRIVATE|MAP_DENYWRITE|MAP_EXECUTABLE;
+
+		vaddr = elf_ppnt->p_vaddr;
+		if (elf_ex.e_type == ET_EXEC || load_addr_set) {
+			elf_flags |= MAP_FIXED;
+		} else if (elf_ex.e_type == ET_DYN) {
+			/* Try and get dynamic programs out of the way of the default mmap
+			   base, as well as whatever program they might try to exec.  This
+		           is because the brk will follow the loader, and is not movable.  */
+			load_bias = ELF_PAGESTART(ELF_ET_DYN_BASE - vaddr);
+		}
+
+		error = elf_map(bprm->file, load_bias + vaddr, elf_ppnt, elf_prot, elf_flags);
+		if (BAD_ADDR(error)) {
+			send_sig(SIGKILL, current, 0);
+			goto out_free_dentry;
+		}
+
+		if (!load_addr_set) {
+			load_addr_set = 1;
+			load_addr = (elf_ppnt->p_vaddr - elf_ppnt->p_offset);
+			if (elf_ex.e_type == ET_DYN) {
+				load_bias += error -
+				             ELF_PAGESTART(load_bias + vaddr);
+				load_addr += load_bias;
+				reloc_func_desc = load_addr;
+			}
+		}
+		k = elf_ppnt->p_vaddr;
+		if (k < start_code) start_code = k;
+		if (start_data < k) start_data = k;
+
+		/*
+		 * Check to see if the section's size will overflow the
+		 * allowed task size. Note that p_filesz must always be
+		 * <= p_memsz so it is only necessary to check p_memsz.
+		 */
+		if (k > TASK_SIZE || elf_ppnt->p_filesz > elf_ppnt->p_memsz ||
+		    elf_ppnt->p_memsz > TASK_SIZE ||
+		    TASK_SIZE - elf_ppnt->p_memsz < k) {
+			/* set_brk can never work.  Avoid overflows.  */
+			send_sig(SIGKILL, current, 0);
+			goto out_free_dentry;
+		}
+
+		k = elf_ppnt->p_vaddr + elf_ppnt->p_filesz;
+
+		if (k > elf_bss)
+			elf_bss = k;
+		if ((elf_ppnt->p_flags & PF_X) && end_code <  k)
+			end_code = k;
+		if (end_data < k)
+			end_data = k;
+		k = elf_ppnt->p_vaddr + elf_ppnt->p_memsz;
+		if (k > elf_brk)
+			elf_brk = k;
+	}
+
+	elf_entry += load_bias;
+	elf_bss += load_bias;
+	elf_brk += load_bias;
+	start_code += load_bias;
+	end_code += load_bias;
+	start_data += load_bias;
+	end_data += load_bias;
+
+	/* Calling set_brk effectively mmaps the pages that we need
+	 * for the bss and break sections.  We must do this before
+	 * mapping in the interpreter, to make sure it doesn't wind
+	 * up getting placed where the bss needs to go.
+	 */
+	retval = set_brk(elf_bss, elf_brk);
+	if (retval) {
+		send_sig(SIGKILL, current, 0);
+		goto out_free_dentry;
+	}
+	padzero(elf_bss);
+
+	if (elf_interpreter) {
+		if (interpreter_type == INTERPRETER_AOUT)
+			elf_entry = load_aout_interp(&interp_ex,
+						     interpreter);
+		else
+			elf_entry = load_elf_interp(&interp_elf_ex,
+						    interpreter,
+						    &interp_load_addr);
+		if (BAD_ADDR(elf_entry)) {
+			printk(KERN_ERR "Unable to load interpreter %.128s\n",
+				elf_interpreter);
+			force_sig(SIGSEGV, current);
+			retval = -ENOEXEC; /* Nobody gets to see this, but.. */
+			goto out_free_dentry;
+		}
+		reloc_func_desc = interp_load_addr;
+
+		allow_write_access(interpreter);
+		fput(interpreter);
+		kfree(elf_interpreter);
+	}
+
+	kfree(elf_phdata);
+
+	if (interpreter_type != INTERPRETER_AOUT)
+		sys_close(elf_exec_fileno);
+
+	set_binfmt(&elf_format);
+
+	compute_creds(bprm);
+	current->flags &= ~PF_FORKNOEXEC;
+	bprm->p = (unsigned long)
+	  create_elf_tables((char *)bprm->p,
+			bprm->argc,
+			bprm->envc,
+			&elf_ex,
+			load_addr, load_bias,
+			interp_load_addr,
+			(interpreter_type == INTERPRETER_AOUT ? 0 : 1));
+	/* N.B. passed_fileno might not be initialized? */
+	if (interpreter_type == INTERPRETER_AOUT)
+		current->mm->arg_start += strlen(passed_fileno) + 1;
+	current->mm->start_brk = current->mm->brk = elf_brk;
+	current->mm->end_code = end_code;
+	current->mm->start_code = start_code;
+	current->mm->start_data = start_data;
+	current->mm->end_data = end_data;
+	current->mm->start_stack = bprm->p;
+
+#if 0
+	printk("(start_brk) %lx\n" , (long) current->mm->start_brk);
+	printk("(end_code) %lx\n" , (long) current->mm->end_code);
+	printk("(start_code) %lx\n" , (long) current->mm->start_code);
+	printk("(start_data) %lx\n" , (long) current->mm->start_data);
+	printk("(end_data) %lx\n" , (long) current->mm->end_data);
+	printk("(start_stack) %lx\n" , (long) current->mm->start_stack);
+	printk("(brk) %lx\n" , (long) current->mm->brk);
+#endif
+
+	if (current->personality & MMAP_PAGE_ZERO) {
+		/* Why this, you ask???  Well SVr4 maps page 0 as read-only,
+		   and some applications "depend" upon this behavior.
+		   Since we do not have the power to recompile these, we
+		   emulate the SVr4 behavior.  Sigh.  */
+		/* N.B. Shouldn't the size here be PAGE_SIZE?? */
+		down_write(&current->mm->mmap_sem);
+		error = do_mmap(NULL, 0, 4096, PROT_READ | PROT_EXEC,
+				MAP_FIXED | MAP_PRIVATE, 0);
+		up_write(&current->mm->mmap_sem);
+	}
+
+#ifdef ELF_PLAT_INIT
+	/*
+	 * The ABI may specify that certain registers be set up in special
+	 * ways (on i386 %edx is the address of a DT_FINI function, for
+	 * example.  In addition, it may also specify (eg, PowerPC64 ELF)
+	 * that the e_entry field is the address of the function descriptor
+	 * for the startup routine, rather than the address of the startup
+	 * routine itself.  This macro performs whatever initialization to
+	 * the regs structure is required as well as any relocations to the
+	 * function descriptor entries when executing dynamically linked apps.
+	 */
+	ELF_PLAT_INIT(regs, reloc_func_desc);
+#endif
+
+	start_thread(regs, elf_entry, bprm->p);
+	if (current->ptrace & PT_PTRACED)
+		send_sig(SIGTRAP, current, 0);
+	retval = 0;
+out:
+	return retval;
+
+	/* error cleanup */
+out_free_dentry:
+	allow_write_access(interpreter);
+	if (interpreter)
+		fput(interpreter);
+out_free_interp:
+	if (elf_interpreter)
+		kfree(elf_interpreter);
+out_free_file:
+	sys_close(elf_exec_fileno);
+out_free_fh:
+	if (files) {
+		put_files_struct(current->files);
+		current->files = files;
+	}
+out_free_ph:
+	kfree(elf_phdata);
+	goto out;
+}
+
+/* This is really simpleminded and specialized - we are loading an
+   a.out library that is given an ELF header. */
+
+static int load_elf_library(struct file *file)
+{
+	struct elf_phdr *elf_phdata;
+	struct elf_phdr *eppnt;
+	unsigned long elf_bss, bss, len;
+	int retval, error, i, j;
+	struct elfhdr elf_ex;
+
+	error = -ENOEXEC;
+	retval = kernel_read(file, 0, (char *) &elf_ex, sizeof(elf_ex));
+	if (retval != sizeof(elf_ex))
+		goto out;
+
+	if (memcmp(elf_ex.e_ident, ELFMAG, SELFMAG) != 0)
+		goto out;
+
+	/* First of all, some simple consistency checks */
+	if (elf_ex.e_type != ET_EXEC || elf_ex.e_phnum > 2 ||
+	   !elf_check_arch(&elf_ex) || !file->f_op || !file->f_op->mmap)
+		goto out;
+
+	/* Now read in all of the header information */
+
+	j = sizeof(struct elf_phdr) * elf_ex.e_phnum;
+	/* j < ELF_MIN_ALIGN because elf_ex.e_phnum <= 2 */
+
+	error = -ENOMEM;
+	elf_phdata = kmalloc(j, GFP_KERNEL);
+	if (!elf_phdata)
+		goto out;
+
+	eppnt = elf_phdata;
+	error = -ENOEXEC;
+	retval = kernel_read(file, elf_ex.e_phoff, (char *)eppnt, j);
+	if (retval != j)
+		goto out_free_ph;
+
+	for (j = 0, i = 0; i<elf_ex.e_phnum; i++)
+		if ((eppnt + i)->p_type == PT_LOAD) j++;
+	if (j != 1)
+		goto out_free_ph;
+
+	while (eppnt->p_type != PT_LOAD) 
+		eppnt++;
+
+	/* Now use mmap to map the library into memory. */
+	down_write(&current->mm->mmap_sem);
+	error = do_mmap(file,
+			ELF_PAGESTART(eppnt->p_vaddr),
+			(eppnt->p_filesz +
+			 ELF_PAGEOFFSET(eppnt->p_vaddr)),
+			PROT_READ | PROT_WRITE | PROT_EXEC,
+			MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE,
+			(eppnt->p_offset -
+			 ELF_PAGEOFFSET(eppnt->p_vaddr)));
+	up_write(&current->mm->mmap_sem);
+	if (error != ELF_PAGESTART(eppnt->p_vaddr))
+		goto out_free_ph;
+
+	elf_bss = eppnt->p_vaddr + eppnt->p_filesz;
+	padzero(elf_bss);
+
+	len = ELF_PAGESTART(eppnt->p_filesz + eppnt->p_vaddr + ELF_MIN_ALIGN - 1);
+	bss = eppnt->p_memsz + eppnt->p_vaddr;
+	if (bss > len) {
+		down_write(&current->mm->mmap_sem);
+		do_brk(len, bss - len);
+		up_write(&current->mm->mmap_sem);
+	}
+	error = 0;
+
+out_free_ph:
+	kfree(elf_phdata);
+out:
+	return error;
+}
+
+/*
+ * Note that some platforms still use traditional core dumps and not
+ * the ELF core dump.  Each platform can select it as appropriate.
+ */
+#ifdef USE_ELF_CORE_DUMP
+
+/*
+ * ELF core dumper
+ *
+ * Modelled on fs/exec.c:aout_core_dump()
+ * Jeremy Fitzhardinge <jeremy@sw.oz.au>
+ */
+/*
+ * These are the only things you should do on a core-file: use only these
+ * functions to write out all the necessary info.
+ */
+static int dump_write(struct file *file, const void *addr, int nr)
+{
+	return file->f_op->write(file, addr, nr, &file->f_pos) == nr;
+}
+
+static int dump_seek(struct file *file, off_t off)
+{
+	if (file->f_op->llseek) {
+		if (file->f_op->llseek(file, off, 0) != off)
+			return 0;
+	} else
+		file->f_pos = off;
+	return 1;
+}
+
+/*
+ * Decide whether a segment is worth dumping; default is yes to be
+ * sure (missing info is worse than too much; etc).
+ * Personally I'd include everything, and use the coredump limit...
+ *
+ * I think we should skip something. But I am not sure how. H.J.
+ */
+static inline int maydump(struct vm_area_struct *vma)
+{
+	/*
+	 * If we may not read the contents, don't allow us to dump
+	 * them either. "dump_write()" can't handle it anyway.
+	 */
+	if (!(vma->vm_flags & VM_READ))
+		return 0;
+
+	/* Do not dump I/O mapped devices! -DaveM */
+	if (vma->vm_flags & VM_IO)
+		return 0;
+#if 1
+	if (vma->vm_flags & (VM_WRITE|VM_GROWSUP|VM_GROWSDOWN))
+		return 1;
+	if (vma->vm_flags & (VM_READ|VM_EXEC|VM_EXECUTABLE|VM_SHARED))
+		return 0;
+#endif
+	return 1;
+}
+
+#define roundup(x, y)  ((((x)+((y)-1))/(y))*(y))
+
+/* An ELF note in memory */
+struct memelfnote
+{
+	const char *name;
+	int type;
+	unsigned int datasz;
+	void *data;
+};
+
+static int notesize(struct memelfnote *en)
+{
+	int sz;
+
+	sz = sizeof(struct elf_note);
+	sz += roundup(strlen(en->name), 4);
+	sz += roundup(en->datasz, 4);
+
+	return sz;
+}
+
+/* #define DEBUG */
+
+#ifdef DEBUG
+static void dump_regs(const char *str, elf_greg_t *r)
+{
+	int i;
+	static const char *regs[] = { "ebx", "ecx", "edx", "esi", "edi", "ebp",
+					      "eax", "ds", "es", "fs", "gs",
+					      "orig_eax", "eip", "cs",
+					      "efl", "uesp", "ss"};
+	printk("Registers: %s\n", str);
+
+	for(i = 0; i < ELF_NGREG; i++)
+	{
+		unsigned long val = r[i];
+		printk("   %-2d %-5s=%08lx %lu\n", i, regs[i], val, val);
+	}
+}
+#endif
+
+#define DUMP_WRITE(addr, nr)	\
+	do { if (!dump_write(file, (addr), (nr))) return 0; } while(0)
+#define DUMP_SEEK(off)	\
+	do { if (!dump_seek(file, (off))) return 0; } while(0)
+
+static int writenote(struct memelfnote *men, struct file *file)
+{
+	struct elf_note en;
+
+	en.n_namesz = strlen(men->name);
+	en.n_descsz = men->datasz;
+	en.n_type = men->type;
+
+	DUMP_WRITE(&en, sizeof(en));
+	DUMP_WRITE(men->name, en.n_namesz);
+	/* XXX - cast from long long to long to avoid need for libgcc.a */
+	DUMP_SEEK(roundup((unsigned long)file->f_pos, 4));	/* XXX */
+	DUMP_WRITE(men->data, men->datasz);
+	DUMP_SEEK(roundup((unsigned long)file->f_pos, 4));	/* XXX */
+
+	return 1;
+}
+#undef DUMP_WRITE
+#undef DUMP_SEEK
+
+#define DUMP_WRITE(addr, nr)	\
+	if ((size += (nr)) > limit || !dump_write(file, (addr), (nr))) \
+		goto end_coredump;
+#define DUMP_SEEK(off)	\
+	if (!dump_seek(file, (off))) \
+		goto end_coredump;
+/*
+ * Actual dumper
+ *
+ * This is a two-pass process; first we find the offsets of the bits,
+ * and then they are actually written out.  If we run out of core limit
+ * we just truncate.
+ */
+static int elf_core_dump(long signr, struct pt_regs * regs, struct file * file)
+{
+	int has_dumped = 0;
+	mm_segment_t fs;
+	int segs;
+	size_t size = 0;
+	int i;
+	struct vm_area_struct *vma;
+	struct elfhdr elf;
+	off_t offset = 0, dataoff;
+	unsigned long limit = current->rlim[RLIMIT_CORE].rlim_cur;
+	int numnote = 4;
+	struct memelfnote notes[4];
+	struct elf_prstatus prstatus;	/* NT_PRSTATUS */
+	elf_fpregset_t fpu;		/* NT_PRFPREG */
+	struct elf_prpsinfo psinfo;	/* NT_PRPSINFO */
+
+	/* first copy the parameters from user space */
+	memset(&psinfo, 0, sizeof(psinfo));
+	{
+		unsigned int i, len;
+
+		len = current->mm->arg_end - current->mm->arg_start;
+		if (len >= ELF_PRARGSZ)
+			len = ELF_PRARGSZ-1;
+		copy_from_user(&psinfo.pr_psargs,
+			      (const char *)current->mm->arg_start, len);
+		for(i = 0; i < len; i++)
+			if (psinfo.pr_psargs[i] == 0)
+				psinfo.pr_psargs[i] = ' ';
+		psinfo.pr_psargs[len] = 0;
+
+	}
+
+	memset(&prstatus, 0, sizeof(prstatus));
+	/*
+	 * This transfers the registers from regs into the standard
+	 * coredump arrangement, whatever that is.
+	 */
+#ifdef ELF_CORE_COPY_REGS
+	ELF_CORE_COPY_REGS(prstatus.pr_reg, regs)
+#else
+	if (sizeof(elf_gregset_t) != sizeof(struct pt_regs))
+	{
+		printk("sizeof(elf_gregset_t) (%ld) != sizeof(struct pt_regs) (%ld)\n",
+			(long)sizeof(elf_gregset_t), (long)sizeof(struct pt_regs));
+	}
+	else
+		*(struct pt_regs *)&prstatus.pr_reg = *regs;
+#endif
+
+	/* now stop all vm operations */
+	down_write(&current->mm->mmap_sem);
+	segs = current->mm->map_count;
+
+#ifdef DEBUG
+	printk("elf_core_dump: %d segs %lu limit\n", segs, limit);
+#endif
+
+	/* Set up header */
+	memcpy(elf.e_ident, ELFMAG, SELFMAG);
+	elf.e_ident[EI_CLASS] = ELF_CLASS;
+	elf.e_ident[EI_DATA] = ELF_DATA;
+	elf.e_ident[EI_VERSION] = EV_CURRENT;
+	memset(elf.e_ident+EI_PAD, 0, EI_NIDENT-EI_PAD);
+
+	elf.e_type = ET_CORE;
+	elf.e_machine = ELF_ARCH;
+	elf.e_version = EV_CURRENT;
+	elf.e_entry = 0;
+	elf.e_phoff = sizeof(elf);
+	elf.e_shoff = 0;
+	elf.e_flags = 0;
+	elf.e_ehsize = sizeof(elf);
+	elf.e_phentsize = sizeof(struct elf_phdr);
+	elf.e_phnum = segs+1;		/* Include notes */
+	elf.e_shentsize = 0;
+	elf.e_shnum = 0;
+	elf.e_shstrndx = 0;
+
+	fs = get_fs();
+	set_fs(KERNEL_DS);
+
+	has_dumped = 1;
+	current->flags |= PF_DUMPCORE;
+
+	DUMP_WRITE(&elf, sizeof(elf));
+	offset += sizeof(elf);				/* Elf header */
+	offset += (segs+1) * sizeof(struct elf_phdr);	/* Program headers */
+
+	/*
+	 * Set up the notes in similar form to SVR4 core dumps made
+	 * with info from their /proc.
+	 */
+
+	notes[0].name = "CORE";
+	notes[0].type = NT_PRSTATUS;
+	notes[0].datasz = sizeof(prstatus);
+	notes[0].data = &prstatus;
+	prstatus.pr_info.si_signo = prstatus.pr_cursig = signr;
+	prstatus.pr_sigpend = current->pending.signal.sig[0];
+	prstatus.pr_sighold = current->blocked.sig[0];
+	psinfo.pr_pid = prstatus.pr_pid = current->pid;
+	psinfo.pr_ppid = prstatus.pr_ppid = current->p_pptr->pid;
+	psinfo.pr_pgrp = prstatus.pr_pgrp = current->pgrp;
+	psinfo.pr_sid = prstatus.pr_sid = current->session;
+	prstatus.pr_utime.tv_sec = CT_TO_SECS(current->times.tms_utime);
+	prstatus.pr_utime.tv_usec = CT_TO_USECS(current->times.tms_utime);
+	prstatus.pr_stime.tv_sec = CT_TO_SECS(current->times.tms_stime);
+	prstatus.pr_stime.tv_usec = CT_TO_USECS(current->times.tms_stime);
+	prstatus.pr_cutime.tv_sec = CT_TO_SECS(current->times.tms_cutime);
+	prstatus.pr_cutime.tv_usec = CT_TO_USECS(current->times.tms_cutime);
+	prstatus.pr_cstime.tv_sec = CT_TO_SECS(current->times.tms_cstime);
+	prstatus.pr_cstime.tv_usec = CT_TO_USECS(current->times.tms_cstime);
+
+#ifdef DEBUG
+	dump_regs("Passed in regs", (elf_greg_t *)regs);
+	dump_regs("prstatus regs", (elf_greg_t *)&prstatus.pr_reg);
+#endif
+
+	notes[1].name = "CORE";
+	notes[1].type = NT_PRPSINFO;
+	notes[1].datasz = sizeof(psinfo);
+	notes[1].data = &psinfo;
+	i = current->state ? ffz(~current->state) + 1 : 0;
+	psinfo.pr_state = i;
+	psinfo.pr_sname = (i < 0 || i > 5) ? '.' : "RSDZTD"[i];
+	psinfo.pr_zomb = psinfo.pr_sname == 'Z';
+	psinfo.pr_nice = current->nice;
+	psinfo.pr_flag = current->flags;
+	psinfo.pr_uid = NEW_TO_OLD_UID(current->uid);
+	psinfo.pr_gid = NEW_TO_OLD_GID(current->gid);
+	strncpy(psinfo.pr_fname, current->comm, sizeof(psinfo.pr_fname));
+
+	notes[2].name = "CORE";
+	notes[2].type = NT_TASKSTRUCT;
+	notes[2].datasz = sizeof(*current);
+	notes[2].data = current;
+
+	/* Try to dump the FPU. */
+	prstatus.pr_fpvalid = dump_fpu (regs, &fpu);
+	if (!prstatus.pr_fpvalid)
+	{
+		numnote--;
+	}
+	else
+	{
+		notes[3].name = "CORE";
+		notes[3].type = NT_PRFPREG;
+		notes[3].datasz = sizeof(fpu);
+		notes[3].data = &fpu;
+	}
+	
+	/* Write notes phdr entry */
+	{
+		struct elf_phdr phdr;
+		int sz = 0;
+
+		for(i = 0; i < numnote; i++)
+			sz += notesize(&notes[i]);
+
+		phdr.p_type = PT_NOTE;
+		phdr.p_offset = offset;
+		phdr.p_vaddr = 0;
+		phdr.p_paddr = 0;
+		phdr.p_filesz = sz;
+		phdr.p_memsz = 0;
+		phdr.p_flags = 0;
+		phdr.p_align = 0;
+
+		offset += phdr.p_filesz;
+		DUMP_WRITE(&phdr, sizeof(phdr));
+	}
+
+	/* Page-align dumped data */
+	dataoff = offset = roundup(offset, ELF_EXEC_PAGESIZE);
+
+	/* Write program headers for segments dump */
+	for(vma = current->mm->mmap; vma != NULL; vma = vma->vm_next) {
+		struct elf_phdr phdr;
+		size_t sz;
+
+		sz = vma->vm_end - vma->vm_start;
+
+		phdr.p_type = PT_LOAD;
+		phdr.p_offset = offset;
+		phdr.p_vaddr = vma->vm_start;
+		phdr.p_paddr = 0;
+		phdr.p_filesz = maydump(vma) ? sz : 0;
+		phdr.p_memsz = sz;
+		offset += phdr.p_filesz;
+		phdr.p_flags = vma->vm_flags & VM_READ ? PF_R : 0;
+		if (vma->vm_flags & VM_WRITE) phdr.p_flags |= PF_W;
+		if (vma->vm_flags & VM_EXEC) phdr.p_flags |= PF_X;
+		phdr.p_align = ELF_EXEC_PAGESIZE;
+
+		DUMP_WRITE(&phdr, sizeof(phdr));
+	}
+
+	for(i = 0; i < numnote; i++)
+		if (!writenote(&notes[i], file))
+			goto end_coredump;
+
+	DUMP_SEEK(dataoff);
+
+	for(vma = current->mm->mmap; vma != NULL; vma = vma->vm_next) {
+		unsigned long addr;
+
+		if (!maydump(vma))
+			continue;
+
+#ifdef DEBUG
+		printk("elf_core_dump: writing %08lx-%08lx\n", vma->vm_start, vma->vm_end);
+#endif
+
+		for (addr = vma->vm_start;
+		     addr < vma->vm_end;
+		     addr += PAGE_SIZE) {
+			struct page* page;
+			struct vm_area_struct *vma;
+
+			if (get_user_pages(current, current->mm, addr, 1, 0, 1,
+						&page, &vma) <= 0) {
+				DUMP_SEEK (file->f_pos + PAGE_SIZE);
+			} else {
+				if (page == ZERO_PAGE(addr)) {
+					DUMP_SEEK (file->f_pos + PAGE_SIZE);
+				} else {
+					void *kaddr;
+					flush_cache_page(vma, addr);
+					kaddr = kmap(page);
+					DUMP_WRITE(kaddr, PAGE_SIZE);
+					flush_page_to_ram(page);
+					kunmap(page);
+				}
+				put_page(page);
+			}
+		}
+	}
+
+	if ((off_t) file->f_pos != offset) {
+		/* Sanity check */
+		printk("elf_core_dump: file->f_pos (%ld) != offset (%ld)\n",
+		       (off_t) file->f_pos, offset);
+	}
+
+ end_coredump:
+	set_fs(fs);
+	up_write(&current->mm->mmap_sem);
+	return has_dumped;
+}
+#endif		/* USE_ELF_CORE_DUMP */
+
+static int __init init_elf_binfmt(void)
+{
+	return register_binfmt(&elf_format);
+}
+
+static void __exit exit_elf_binfmt(void)
+{
+	/* Remove the COFF and ELF loaders. */
+	unregister_binfmt(&elf_format);
+}
+
+module_init(init_elf_binfmt)
+module_exit(exit_elf_binfmt)
+MODULE_LICENSE("GPL");
diff --git a/fs/binfmt_em86.c b/fs/binfmt_em86.c
new file mode 100644
index 00000000000000..3e637421853e41
--- /dev/null
+++ b/fs/binfmt_em86.c
@@ -0,0 +1,113 @@
+/*
+ *  linux/fs/binfmt_em86.c
+ *
+ *  Based on linux/fs/binfmt_script.c
+ *  Copyright (C) 1996  Martin von Löwis
+ *  original #!-checking implemented by tytso.
+ *
+ *  em86 changes Copyright (C) 1997  Jim Paradis
+ */
+
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/stat.h>
+#include <linux/slab.h>
+#include <linux/locks.h>
+#include <linux/smp_lock.h>
+#include <linux/binfmts.h>
+#include <linux/elf.h>
+#include <linux/init.h>
+#include <linux/file.h>
+
+
+#define EM86_INTERP	"/usr/bin/em86"
+#define EM86_I_NAME	"em86"
+
+static int load_em86(struct linux_binprm *bprm,struct pt_regs *regs)
+{
+	char *interp, *i_name, *i_arg;
+	struct file * file;
+	int retval;
+	struct elfhdr	elf_ex;
+
+	/* Make sure this is a Linux/Intel ELF executable... */
+	elf_ex = *((struct elfhdr *)bprm->buf);
+
+	if (memcmp(elf_ex.e_ident, ELFMAG, SELFMAG) != 0)
+		return  -ENOEXEC;
+
+	/* First of all, some simple consistency checks */
+	if ((elf_ex.e_type != ET_EXEC && elf_ex.e_type != ET_DYN) ||
+		(!((elf_ex.e_machine == EM_386) || (elf_ex.e_machine == EM_486))) ||
+		(!bprm->file->f_op || !bprm->file->f_op->mmap)) {
+			return -ENOEXEC;
+	}
+
+	bprm->sh_bang++;	/* Well, the bang-shell is implicit... */
+	allow_write_access(bprm->file);
+	fput(bprm->file);
+	bprm->file = NULL;
+
+	/* Unlike in the script case, we don't have to do any hairy
+	 * parsing to find our interpreter... it's hardcoded!
+	 */
+	interp = EM86_INTERP;
+	i_name = EM86_I_NAME;
+	i_arg = NULL;		/* We reserve the right to add an arg later */
+
+	/*
+	 * Splice in (1) the interpreter's name for argv[0]
+	 *           (2) (optional) argument to interpreter
+	 *           (3) filename of emulated file (replace argv[0])
+	 *
+	 * This is done in reverse order, because of how the
+	 * user environment and arguments are stored.
+	 */
+	remove_arg_zero(bprm);
+	retval = copy_strings_kernel(1, &bprm->filename, bprm);
+	if (retval < 0) return retval; 
+	bprm->argc++;
+	if (i_arg) {
+		retval = copy_strings_kernel(1, &i_arg, bprm);
+		if (retval < 0) return retval; 
+		bprm->argc++;
+	}
+	retval = copy_strings_kernel(1, &i_name, bprm);
+	if (retval < 0)	return retval;
+	bprm->argc++;
+
+	/*
+	 * OK, now restart the process with the interpreter's inode.
+	 * Note that we use open_exec() as the name is now in kernel
+	 * space, and we don't need to copy it.
+	 */
+	file = open_exec(interp);
+	if (IS_ERR(file))
+		return PTR_ERR(file);
+
+	bprm->file = file;
+
+	retval = prepare_binprm(bprm);
+	if (retval < 0)
+		return retval;
+
+	return search_binary_handler(bprm, regs);
+}
+
+struct linux_binfmt em86_format = {
+	NULL, THIS_MODULE, load_em86, NULL, NULL, 0
+};
+
+static int __init init_em86_binfmt(void)
+{
+	return register_binfmt(&em86_format);
+}
+
+static void __exit exit_em86_binfmt(void)
+{
+	unregister_binfmt(&em86_format);
+}
+
+module_init(init_em86_binfmt)
+module_exit(exit_em86_binfmt)
+MODULE_LICENSE("GPL");
diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
new file mode 100644
index 00000000000000..b3f8a0417fa87d
--- /dev/null
+++ b/fs/binfmt_misc.c
@@ -0,0 +1,717 @@
+/*
+ *  binfmt_misc.c
+ *
+ *  Copyright (C) 1997 Richard Günther
+ *
+ *  binfmt_misc detects binaries via a magic or filename extension and invokes
+ *  a specified wrapper. This should obsolete binfmt_java, binfmt_em86 and
+ *  binfmt_mz.
+ *
+ *  1997-04-25 first version
+ *  [...]
+ *  1997-05-19 cleanup
+ *  1997-06-26 hpa: pass the real filename rather than argv[0]
+ *  1997-06-30 minor cleanup
+ *  1997-08-09 removed extension stripping, locking cleanup
+ *  2001-02-28 AV: rewritten into something that resembles C. Original didn't.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+
+#include <linux/binfmts.h>
+#include <linux/slab.h>
+#include <linux/ctype.h>
+#include <linux/file.h>
+#include <linux/pagemap.h>
+
+#include <asm/uaccess.h>
+
+enum {
+	VERBOSE_STATUS = 1 /* make it zero to save 400 bytes kernel memory */
+};
+
+static LIST_HEAD(entries);
+static int enabled = 1;
+
+enum {Enabled, Magic};
+
+typedef struct {
+	struct list_head list;
+	unsigned long flags;		/* type, status, etc. */
+	int offset;			/* offset of magic */
+	int size;			/* size of magic/mask */
+	char *magic;			/* magic or filename extension */
+	char *mask;			/* mask, NULL for exact match */
+	char *interpreter;		/* filename of interpreter */
+	char *name;
+	struct dentry *dentry;
+} Node;
+
+static rwlock_t entries_lock __attribute__((unused)) = RW_LOCK_UNLOCKED;
+
+/* 
+ * Check if we support the binfmt
+ * if we do, return the node, else NULL
+ * locking is done in load_misc_binary
+ */
+static Node *check_file(struct linux_binprm *bprm)
+{
+	char *p = strrchr(bprm->filename, '.');
+	struct list_head *l;
+
+	for (l = entries.next; l != &entries; l = l->next) {
+		Node *e = list_entry(l, Node, list);
+		char *s;
+		int j;
+
+		if (!test_bit(Enabled, &e->flags))
+			continue;
+
+		if (!test_bit(Magic, &e->flags)) {
+			if (p && !strcmp(e->magic, p + 1))
+				return e;
+			continue;
+		}
+
+		s = bprm->buf + e->offset;
+		if (e->mask) {
+			for (j = 0; j < e->size; j++)
+				if ((*s++ ^ e->magic[j]) & e->mask[j])
+					break;
+		} else {
+			for (j = 0; j < e->size; j++)
+				if ((*s++ ^ e->magic[j]))
+					break;
+		}
+		if (j == e->size)
+			return e;
+	}
+	return NULL;
+}
+
+/*
+ * the loader itself
+ */
+static int load_misc_binary(struct linux_binprm *bprm, struct pt_regs *regs)
+{
+	Node *fmt;
+	struct file * file;
+	char iname[BINPRM_BUF_SIZE];
+	char *iname_addr = iname;
+	int retval;
+
+	retval = -ENOEXEC;
+	if (!enabled)
+		goto _ret;
+
+	/* to keep locking time low, we copy the interpreter string */
+	read_lock(&entries_lock);
+	fmt = check_file(bprm);
+	if (fmt) {
+		strncpy(iname, fmt->interpreter, BINPRM_BUF_SIZE - 1);
+		iname[BINPRM_BUF_SIZE - 1] = '\0';
+	}
+	read_unlock(&entries_lock);
+	if (!fmt)
+		goto _ret;
+
+	allow_write_access(bprm->file);
+	fput(bprm->file);
+	bprm->file = NULL;
+
+	/* Build args for interpreter */
+	remove_arg_zero(bprm);
+	retval = copy_strings_kernel(1, &bprm->filename, bprm);
+	if (retval < 0) goto _ret; 
+	bprm->argc++;
+	retval = copy_strings_kernel(1, &iname_addr, bprm);
+	if (retval < 0) goto _ret; 
+	bprm->argc++;
+	bprm->filename = iname;	/* for binfmt_script */
+
+	file = open_exec(iname);
+	retval = PTR_ERR(file);
+	if (IS_ERR(file))
+		goto _ret;
+	bprm->file = file;
+
+	retval = prepare_binprm(bprm);
+	if (retval >= 0)
+		retval = search_binary_handler(bprm, regs);
+_ret:
+	return retval;
+}
+
+/* Command parsers */
+
+/*
+ * parses and copies one argument enclosed in del from *sp to *dp,
+ * recognising the \x special.
+ * returns pointer to the copied argument or NULL in case of an
+ * error (and sets err) or null argument length.
+ */
+static char *scanarg(char *s, char del)
+{
+	char c;
+
+	while ((c = *s++) != del) {
+		if (c == '\\' && *s == 'x') {
+			s++;
+			if (!isxdigit(*s++))
+				return NULL;
+			if (!isxdigit(*s++))
+				return NULL;
+		}
+	}
+	return s;
+}
+
+static int unquote(char *from)
+{
+	char c = 0, *s = from, *p = from;
+
+	while ((c = *s++) != '\0') {
+		if (c == '\\' && *s == 'x') {
+			s++;
+			c = toupper(*s++);
+			*p = (c - (isdigit(c) ? '0' : 'A' - 10)) << 4;
+			c = toupper(*s++);
+			*p++ |= c - (isdigit(c) ? '0' : 'A' - 10);
+			continue;
+		}
+		*p++ = c;
+	}
+	return p - from;
+}
+
+/*
+ * This registers a new binary format, it recognises the syntax
+ * ':name:type:offset:magic:mask:interpreter:'
+ * where the ':' is the IFS, that can be chosen with the first char
+ */
+static Node *create_entry(const char *buffer, size_t count)
+{
+	Node *e;
+	int memsize, err;
+	char *buf, *p;
+	char del;
+
+	/* some sanity checks */
+	err = -EINVAL;
+	if ((count < 11) || (count > 256))
+		goto out;
+
+	err = -ENOMEM;
+	memsize = sizeof(Node) + count + 8;
+	e = (Node *) kmalloc(memsize, GFP_USER);
+	if (!e)
+		goto out;
+
+	p = buf = (char *)e + sizeof(Node);
+
+	memset(e, 0, sizeof(Node));
+	if (copy_from_user(buf, buffer, count))
+		goto Efault;
+
+	del = *p++;	/* delimeter */
+
+	memset(buf+count, del, 8);
+
+	e->name = p;
+	p = strchr(p, del);
+	if (!p)
+		goto Einval;
+	*p++ = '\0';
+	if (!e->name[0] ||
+	    !strcmp(e->name, ".") ||
+	    !strcmp(e->name, "..") ||
+	    strchr(e->name, '/'))
+		goto Einval;
+	switch (*p++) {
+		case 'E': e->flags = 1<<Enabled; break;
+		case 'M': e->flags = (1<<Enabled) | (1<<Magic); break;
+		default: goto Einval;
+	}
+	if (*p++ != del)
+		goto Einval;
+	if (test_bit(Magic, &e->flags)) {
+		char *s = strchr(p, del);
+		if (!s)
+			goto Einval;
+		*s++ = '\0';
+		e->offset = simple_strtoul(p, &p, 10);
+		if (*p++)
+			goto Einval;
+		e->magic = p;
+		p = scanarg(p, del);
+		if (!p)
+			goto Einval;
+		p[-1] = '\0';
+		if (!e->magic[0])
+			goto Einval;
+		e->mask = p;
+		p = scanarg(p, del);
+		if (!p)
+			goto Einval;
+		p[-1] = '\0';
+		if (!e->mask[0])
+			e->mask = NULL;
+		e->size = unquote(e->magic);
+		if (e->mask && unquote(e->mask) != e->size)
+			goto Einval;
+		if (e->size + e->offset > BINPRM_BUF_SIZE)
+			goto Einval;
+	} else {
+		p = strchr(p, del);
+		if (!p)
+			goto Einval;
+		*p++ = '\0';
+		e->magic = p;
+		p = strchr(p, del);
+		if (!p)
+			goto Einval;
+		*p++ = '\0';
+		if (!e->magic[0] || strchr(e->magic, '/'))
+			goto Einval;
+		p = strchr(p, del);
+		if (!p)
+			goto Einval;
+		*p++ = '\0';
+	}
+	e->interpreter = p;
+	p = strchr(p, del);
+	if (!p)
+		goto Einval;
+	*p++ = '\0';
+	if (!e->interpreter[0])
+		goto Einval;
+
+	if (*p == '\n')
+		p++;
+	if (p != buf + count)
+		goto Einval;
+	return e;
+
+out:
+	return ERR_PTR(err);
+
+Efault:
+	kfree(e);
+	return ERR_PTR(-EFAULT);
+Einval:
+	kfree(e);
+	return ERR_PTR(-EINVAL);
+}
+
+/*
+ * Set status of entry/binfmt_misc:
+ * '1' enables, '0' disables and '-1' clears entry/binfmt_misc
+ */
+static int parse_command(const char *buffer, size_t count)
+{
+	char s[4];
+
+	if (!count)
+		return 0;
+	if (count > 3)
+		return -EINVAL;
+	if (copy_from_user(s, buffer, count))
+		return -EFAULT;
+	if (s[count-1] == '\n')
+		count--;
+	if (count == 1 && s[0] == '0')
+		return 1;
+	if (count == 1 && s[0] == '1')
+		return 2;
+	if (count == 2 && s[0] == '-' && s[1] == '1')
+		return 3;
+	return -EINVAL;
+}
+
+/* generic stuff */
+
+static void entry_status(Node *e, char *page)
+{
+	char *dp;
+	char *status = "disabled";
+
+	if (test_bit(Enabled, &e->flags))
+		status = "enabled";
+
+	if (!VERBOSE_STATUS) {
+		sprintf(page, "%s\n", status);
+		return;
+	}
+
+	sprintf(page, "%s\ninterpreter %s\n", status, e->interpreter);
+	dp = page + strlen(page);
+	if (!test_bit(Magic, &e->flags)) {
+		sprintf(dp, "extension .%s\n", e->magic);
+	} else {
+		int i;
+
+		sprintf(dp, "offset %i\nmagic ", e->offset);
+		dp = page + strlen(page);
+		for (i = 0; i < e->size; i++) {
+			sprintf(dp, "%02x", 0xff & (int) (e->magic[i]));
+			dp += 2;
+		}
+		if (e->mask) {
+			sprintf(dp, "\nmask ");
+			dp += 6;
+			for (i = 0; i < e->size; i++) {
+				sprintf(dp, "%02x", 0xff & (int) (e->mask[i]));
+				dp += 2;
+			}
+		}
+		*dp++ = '\n';
+		*dp = '\0';
+	}
+}
+
+static struct inode *bm_get_inode(struct super_block *sb, int mode)
+{
+	struct inode * inode = new_inode(sb);
+
+	if (inode) {
+		inode->i_mode = mode;
+		inode->i_uid = 0;
+		inode->i_gid = 0;
+		inode->i_blksize = PAGE_CACHE_SIZE;
+		inode->i_blocks = 0;
+		inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+	}
+	return inode;
+}
+
+static void bm_clear_inode(struct inode *inode)
+{
+	Node *e = inode->u.generic_ip;
+
+	if (e) {
+		write_lock(&entries_lock);
+		list_del(&e->list);
+		write_unlock(&entries_lock);
+		kfree(e);
+	}
+}
+
+static void kill_node(Node *e)
+{
+	struct dentry *dentry;
+
+	write_lock(&entries_lock);
+	dentry = e->dentry;
+	if (dentry) {
+		list_del(&e->list);
+		INIT_LIST_HEAD(&e->list);
+		e->dentry = NULL;
+	}
+	write_unlock(&entries_lock);
+
+	if (dentry) {
+		dentry->d_inode->i_nlink--;
+		d_drop(dentry);
+		dput(dentry);
+	}
+}
+
+/* /<entry> */
+
+static ssize_t
+bm_entry_read(struct file * file, char * buf, size_t nbytes, loff_t *ppos)
+{
+	Node *e = file->f_dentry->d_inode->u.generic_ip;
+	loff_t pos = *ppos;
+	ssize_t res;
+	char *page;
+	int len;
+
+	if (!(page = (char*) __get_free_page(GFP_KERNEL)))
+		return -ENOMEM;
+
+	entry_status(e, page);
+	len = strlen(page);
+
+	res = -EINVAL;
+	if (pos < 0)
+		goto out;
+	res = 0;
+	if (pos >= len)
+		goto out;
+	if (len < pos + nbytes)
+		nbytes = len - pos;
+	res = -EFAULT;
+	if (copy_to_user(buf, page + pos, nbytes))
+		goto out;
+	*ppos = pos + nbytes;
+	res = nbytes;
+out:
+	free_page((unsigned long) page);
+	return res;
+}
+
+static ssize_t bm_entry_write(struct file *file, const char *buffer,
+				size_t count, loff_t *ppos)
+{
+	struct dentry *root;
+	Node *e = file->f_dentry->d_inode->u.generic_ip;
+	int res = parse_command(buffer, count);
+
+	switch (res) {
+		case 1: clear_bit(Enabled, &e->flags);
+			break;
+		case 2: set_bit(Enabled, &e->flags);
+			break;
+		case 3: root = dget(file->f_vfsmnt->mnt_sb->s_root);
+			down(&root->d_inode->i_sem);
+			down(&root->d_inode->i_zombie);
+
+			kill_node(e);
+
+			up(&root->d_inode->i_zombie);
+			up(&root->d_inode->i_sem);
+			dput(root);
+			break;
+		default: return res;
+	}
+	return count;
+}
+
+static struct file_operations bm_entry_operations = {
+	read:		bm_entry_read,
+	write:		bm_entry_write,
+};
+
+/* /register */
+
+static ssize_t bm_register_write(struct file *file, const char *buffer,
+			       size_t count, loff_t *ppos)
+{
+	Node *e;
+	struct dentry *root, *dentry;
+	struct super_block *sb = file->f_vfsmnt->mnt_sb;
+	int err = 0;
+
+	e = create_entry(buffer, count);
+
+	if (IS_ERR(e))
+		return PTR_ERR(e);
+
+	root = dget(sb->s_root);
+	down(&root->d_inode->i_sem);
+	dentry = lookup_one_len(e->name, root, strlen(e->name));
+	err = PTR_ERR(dentry);
+	if (!IS_ERR(dentry)) {
+		down(&root->d_inode->i_zombie);
+		if (dentry->d_inode) {
+			err = -EEXIST;
+		} else {
+			struct inode * inode = bm_get_inode(sb, S_IFREG | 0644);
+			err = -ENOMEM;
+
+			if (inode) {
+				write_lock(&entries_lock);
+
+				e->dentry = dget(dentry);
+				inode->u.generic_ip = e;
+				inode->i_fop = &bm_entry_operations;
+				d_instantiate(dentry, inode);
+
+				list_add(&e->list, &entries);
+				write_unlock(&entries_lock);
+
+				err = 0;
+			}
+		}
+		up(&root->d_inode->i_zombie);
+		dput(dentry);
+	}
+	up(&root->d_inode->i_sem);
+	dput(root);
+
+	if (err) {
+		kfree(e);
+		return -EINVAL;
+	}
+	return count;
+}
+
+static struct file_operations bm_register_operations = {
+	write:		bm_register_write,
+};
+
+/* /status */
+
+static ssize_t
+bm_status_read(struct file * file, char * buf, size_t nbytes, loff_t *ppos)
+{
+	char *s = enabled ? "enabled" : "disabled";
+	int len = strlen(s);
+	loff_t pos = *ppos;
+
+	if (pos < 0)
+		return -EINVAL;
+	if (pos >= len)
+		return 0;
+	if (len < pos + nbytes)
+		nbytes = len - pos;
+	if (copy_to_user(buf, s + pos, nbytes))
+		return -EFAULT;
+	*ppos = pos + nbytes;
+	return nbytes;
+}
+
+static ssize_t bm_status_write(struct file * file, const char * buffer,
+		size_t count, loff_t *ppos)
+{
+	int res = parse_command(buffer, count);
+	struct dentry *root;
+
+	switch (res) {
+		case 1: enabled = 0; break;
+		case 2: enabled = 1; break;
+		case 3: root = dget(file->f_vfsmnt->mnt_sb->s_root);
+			down(&root->d_inode->i_sem);
+			down(&root->d_inode->i_zombie);
+
+			while (!list_empty(&entries))
+				kill_node(list_entry(entries.next, Node, list));
+
+			up(&root->d_inode->i_zombie);
+			up(&root->d_inode->i_sem);
+			dput(root);
+		default: return res;
+	}
+	return count;
+}
+
+static struct file_operations bm_status_operations = {
+	read:		bm_status_read,
+	write:		bm_status_write,
+};
+
+/* / */
+
+static struct dentry * bm_lookup(struct inode *dir, struct dentry *dentry)
+{
+	d_add(dentry, NULL);
+	return NULL;
+}
+
+static struct inode_operations bm_dir_inode_operations = {
+	lookup:		bm_lookup,
+};
+
+/* Superblock handling */
+
+static int bm_statfs(struct super_block *sb, struct statfs *buf)
+{
+	buf->f_type = sb->s_magic;
+	buf->f_bsize = PAGE_CACHE_SIZE;
+	buf->f_namelen = 255;
+	return 0;
+}
+
+static struct super_operations s_ops = {
+	statfs:		bm_statfs,
+	put_inode:	force_delete,
+	clear_inode:	bm_clear_inode,
+};
+
+static struct super_block *bm_read_super(struct super_block * sb, void * data, int silent)
+{
+	struct qstr names[2] = {{name:"status"}, {name:"register"}};
+	struct inode * inode;
+	struct dentry * dentry[3];
+	int i;
+
+	for (i=0; i<sizeof(names)/sizeof(names[0]); i++) {
+		names[i].len = strlen(names[i].name);
+		names[i].hash = full_name_hash(names[i].name, names[i].len);
+	}
+
+	sb->s_blocksize = PAGE_CACHE_SIZE;
+	sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
+	sb->s_magic = 0x42494e4d;
+	sb->s_op = &s_ops;
+
+	inode = bm_get_inode(sb, S_IFDIR | 0755);
+	if (!inode)
+		return NULL;
+	inode->i_op = &bm_dir_inode_operations;
+	inode->i_fop = &dcache_dir_ops;
+	dentry[0] = d_alloc_root(inode);
+	if (!dentry[0]) {
+		iput(inode);
+		return NULL;
+	}
+	dentry[1] = d_alloc(dentry[0], &names[0]);
+	if (!dentry[1])
+		goto out1;
+	dentry[2] = d_alloc(dentry[0], &names[1]);
+	if (!dentry[2])
+		goto out2;
+	inode = bm_get_inode(sb, S_IFREG | 0644);
+	if (!inode)
+		goto out3;
+	inode->i_fop = &bm_status_operations;
+	d_add(dentry[1], inode);
+	inode = bm_get_inode(sb, S_IFREG | 0400);
+	if (!inode)
+		goto out3;
+	inode->i_fop = &bm_register_operations;
+	d_add(dentry[2], inode);
+
+	sb->s_root = dentry[0];
+	return sb;
+
+out3:
+	dput(dentry[2]);
+out2:
+	dput(dentry[1]);
+out1:
+	dput(dentry[0]);
+	return NULL;
+}
+
+static struct linux_binfmt misc_format = {
+	NULL, THIS_MODULE, load_misc_binary, NULL, NULL, 0
+};
+
+static DECLARE_FSTYPE(bm_fs_type, "binfmt_misc", bm_read_super, FS_SINGLE|FS_LITTER);
+
+static struct vfsmount *bm_mnt;
+
+static int __init init_misc_binfmt(void)
+{
+	int err = register_filesystem(&bm_fs_type);
+	if (!err) {
+		bm_mnt = kern_mount(&bm_fs_type);
+		err = PTR_ERR(bm_mnt);
+		if (IS_ERR(bm_mnt))
+			unregister_filesystem(&bm_fs_type);
+		else {
+			err = register_binfmt(&misc_format);
+			if (err) {
+				unregister_filesystem(&bm_fs_type);
+				kern_umount(bm_mnt);
+			}
+		}
+	}
+	return err;
+}
+
+static void __exit exit_misc_binfmt(void)
+{
+	unregister_binfmt(&misc_format);
+	unregister_filesystem(&bm_fs_type);
+	kern_umount(bm_mnt);
+}
+
+EXPORT_NO_SYMBOLS;
+
+module_init(init_misc_binfmt);
+module_exit(exit_misc_binfmt);
+MODULE_LICENSE("GPL");
diff --git a/fs/binfmt_script.c b/fs/binfmt_script.c
new file mode 100644
index 00000000000000..85f31b81fdffb2
--- /dev/null
+++ b/fs/binfmt_script.c
@@ -0,0 +1,111 @@
+/*
+ *  linux/fs/binfmt_script.c
+ *
+ *  Copyright (C) 1996  Martin von Löwis
+ *  original #!-checking implemented by tytso.
+ */
+
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/stat.h>
+#include <linux/slab.h>
+#include <linux/binfmts.h>
+#include <linux/init.h>
+#include <linux/file.h>
+#include <linux/smp_lock.h>
+
+static int load_script(struct linux_binprm *bprm,struct pt_regs *regs)
+{
+	char *cp, *i_name, *i_arg;
+	struct file *file;
+	char interp[BINPRM_BUF_SIZE];
+	int retval;
+
+	if ((bprm->buf[0] != '#') || (bprm->buf[1] != '!') || (bprm->sh_bang)) 
+		return -ENOEXEC;
+	/*
+	 * This section does the #! interpretation.
+	 * Sorta complicated, but hopefully it will work.  -TYT
+	 */
+
+	bprm->sh_bang++;
+	allow_write_access(bprm->file);
+	fput(bprm->file);
+	bprm->file = NULL;
+
+	bprm->buf[BINPRM_BUF_SIZE - 1] = '\0';
+	if ((cp = strchr(bprm->buf, '\n')) == NULL)
+		cp = bprm->buf+BINPRM_BUF_SIZE-1;
+	*cp = '\0';
+	while (cp > bprm->buf) {
+		cp--;
+		if ((*cp == ' ') || (*cp == '\t'))
+			*cp = '\0';
+		else
+			break;
+	}
+	for (cp = bprm->buf+2; (*cp == ' ') || (*cp == '\t'); cp++);
+	if (*cp == '\0') 
+		return -ENOEXEC; /* No interpreter name found */
+	i_name = cp;
+	i_arg = 0;
+	for ( ; *cp && (*cp != ' ') && (*cp != '\t'); cp++)
+		/* nothing */ ;
+	while ((*cp == ' ') || (*cp == '\t'))
+		*cp++ = '\0';
+	if (*cp)
+		i_arg = cp;
+	strcpy (interp, i_name);
+	/*
+	 * OK, we've parsed out the interpreter name and
+	 * (optional) argument.
+	 * Splice in (1) the interpreter's name for argv[0]
+	 *           (2) (optional) argument to interpreter
+	 *           (3) filename of shell script (replace argv[0])
+	 *
+	 * This is done in reverse order, because of how the
+	 * user environment and arguments are stored.
+	 */
+	remove_arg_zero(bprm);
+	retval = copy_strings_kernel(1, &bprm->filename, bprm);
+	if (retval < 0) return retval; 
+	bprm->argc++;
+	if (i_arg) {
+		retval = copy_strings_kernel(1, &i_arg, bprm);
+		if (retval < 0) return retval; 
+		bprm->argc++;
+	}
+	retval = copy_strings_kernel(1, &i_name, bprm);
+	if (retval) return retval; 
+	bprm->argc++;
+	/*
+	 * OK, now restart the process with the interpreter's dentry.
+	 */
+	file = open_exec(interp);
+	if (IS_ERR(file))
+		return PTR_ERR(file);
+
+	bprm->file = file;
+	retval = prepare_binprm(bprm);
+	if (retval < 0)
+		return retval;
+	return search_binary_handler(bprm,regs);
+}
+
+struct linux_binfmt script_format = {
+	NULL, THIS_MODULE, load_script, NULL, NULL, 0
+};
+
+static int __init init_script_binfmt(void)
+{
+	return register_binfmt(&script_format);
+}
+
+static void __exit exit_script_binfmt(void)
+{
+	unregister_binfmt(&script_format);
+}
+
+module_init(init_script_binfmt)
+module_exit(exit_script_binfmt)
+MODULE_LICENSE("GPL");
diff --git a/fs/binfmt_som.c b/fs/binfmt_som.c
new file mode 100644
index 00000000000000..4eec0aaf584bbb
--- /dev/null
+++ b/fs/binfmt_som.c
@@ -0,0 +1,329 @@
+/*
+ * linux/fs/binfmt_som.c
+ *
+ * These are the functions used to load SOM format executables as used
+ * by HP-UX.  
+ *
+ * Copyright 1999 Matthew Wilcox <willy@bofh.ai>
+ * based on binfmt_elf which is
+ * Copyright 1993, 1994: Eric Youngdale (ericy@cais.com).
+ */
+
+#include <linux/module.h>
+
+#include <linux/fs.h>
+#include <linux/stat.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/mman.h>
+#include <linux/errno.h>
+#include <linux/signal.h>
+#include <linux/binfmts.h>
+#include <linux/som.h>
+#include <linux/string.h>
+#include <linux/file.h>
+#include <linux/fcntl.h>
+#include <linux/ptrace.h>
+#include <linux/slab.h>
+#include <linux/shm.h>
+#include <linux/personality.h>
+#include <linux/init.h>
+
+#include <asm/uaccess.h>
+#include <asm/pgtable.h>
+
+#include <linux/config.h>
+
+#include <linux/elf.h>
+
+static int load_som_binary(struct linux_binprm * bprm, struct pt_regs * regs);
+static int load_som_library(struct file *);
+
+/*
+ * If we don't support core dumping, then supply a NULL so we
+ * don't even try.
+ */
+#if 0
+static int som_core_dump(long signr, struct pt_regs * regs);
+#else
+#define som_core_dump	NULL
+#endif
+
+#define SOM_PAGESTART(_v) ((_v) & ~(unsigned long)(SOM_PAGESIZE-1))
+#define SOM_PAGEOFFSET(_v) ((_v) & (SOM_PAGESIZE-1))
+#define SOM_PAGEALIGN(_v) (((_v) + SOM_PAGESIZE - 1) & ~(SOM_PAGESIZE - 1))
+
+static struct linux_binfmt som_format = {
+	NULL, THIS_MODULE, load_som_binary, load_som_library, som_core_dump, SOM_PAGESIZE
+};
+
+/*
+ * create_som_tables() parses the env- and arg-strings in new user
+ * memory and creates the pointer tables from them, and puts their
+ * addresses on the "stack", returning the new stack pointer value.
+ */
+static void create_som_tables(struct linux_binprm *bprm)
+{
+	char **argv, **envp;
+	int argc = bprm->argc;
+	int envc = bprm->envc;
+	unsigned long p;
+	unsigned long *sp;
+
+	/* Word-align the stack pointer */
+	sp = (unsigned long *)((bprm->p + 3) & ~3);
+
+	envp = (char **) sp;
+	sp += envc + 1;
+	argv = (char **) sp;
+	sp += argc + 1;
+
+	__put_user((unsigned long) envp,++sp);
+	__put_user((unsigned long) argv,++sp);
+
+	__put_user(argc, ++sp);
+
+	bprm->p = (unsigned long) sp;
+
+	p = current->mm->arg_start;
+	while (argc-- > 0) {
+		__put_user((char *)p,argv++);
+		p += strlen_user((char *)p);
+	}
+	__put_user(NULL, argv);
+	current->mm->arg_end = current->mm->env_start = p;
+	while (envc-- > 0) {
+		__put_user((char *)p,envp++);
+		p += strlen_user((char *)p);
+	}
+	__put_user(NULL, envp);
+	current->mm->env_end = p;
+}
+
+static int check_som_header(struct som_hdr *som_ex)
+{
+	int *buf = (int *)som_ex;
+	int i, ck;
+
+	if (som_ex->system_id != SOM_SID_PARISC_1_0 &&
+	    som_ex->system_id != SOM_SID_PARISC_1_1 &&
+	    som_ex->system_id != SOM_SID_PARISC_2_0)
+		return -ENOEXEC;
+
+	if (som_ex->a_magic != SOM_EXEC_NONSHARE &&
+	    som_ex->a_magic != SOM_EXEC_SHARE &&
+	    som_ex->a_magic != SOM_EXEC_DEMAND)
+		return -ENOEXEC;
+
+	if (som_ex->version_id != SOM_ID_OLD &&
+	    som_ex->version_id != SOM_ID_NEW)
+		return -ENOEXEC;
+
+	ck = 0;
+	for (i=0; i<32; i++)
+		ck ^= buf[i];
+	if (ck != 0)
+		return -ENOEXEC;
+
+	return 0;
+}
+
+static int map_som_binary(struct file *file,
+		const struct som_exec_auxhdr *hpuxhdr)
+{
+	unsigned long code_start, code_size, data_start, data_size;
+	unsigned long bss_start, som_brk;
+	int retval;
+	int prot = PROT_READ | PROT_EXEC;
+	int flags = MAP_FIXED|MAP_PRIVATE|MAP_DENYWRITE|MAP_EXECUTABLE;
+
+	mm_segment_t old_fs = get_fs();
+	set_fs(get_ds());
+
+	code_start = SOM_PAGESTART(hpuxhdr->exec_tmem);
+	code_size = SOM_PAGEALIGN(hpuxhdr->exec_tsize);
+	current->mm->start_code = code_start;
+	current->mm->end_code = code_start + code_size;
+	down_write(&current->mm->mmap_sem);
+	retval = do_mmap(file, code_start, code_size, prot,
+			flags, SOM_PAGESTART(hpuxhdr->exec_tfile));
+	up_write(&current->mm->mmap_sem);
+	if (retval < 0 && retval > -1024)
+		goto out;
+
+	data_start = SOM_PAGESTART(hpuxhdr->exec_dmem);
+	data_size = SOM_PAGEALIGN(hpuxhdr->exec_dsize);
+	current->mm->start_data = data_start;
+	current->mm->end_data = bss_start = data_start + data_size;
+	down_write(&current->mm->mmap_sem);
+	retval = do_mmap(file, data_start, data_size,
+			prot | PROT_WRITE, flags,
+			SOM_PAGESTART(hpuxhdr->exec_dfile));
+	up_write(&current->mm->mmap_sem);
+	if (retval < 0 && retval > -1024)
+		goto out;
+
+	som_brk = bss_start + SOM_PAGEALIGN(hpuxhdr->exec_bsize);
+	current->mm->start_brk = current->mm->brk = som_brk;
+	down_write(&current->mm->mmap_sem);
+	retval = do_mmap(NULL, bss_start, som_brk - bss_start,
+			prot | PROT_WRITE, MAP_FIXED | MAP_PRIVATE, 0);
+	up_write(&current->mm->mmap_sem);
+	if (retval > 0 || retval < -1024)
+		retval = 0;
+out:
+	set_fs(old_fs);
+	return retval;
+}
+
+
+/*
+ * These are the functions used to load SOM executables and shared
+ * libraries.  There is no binary dependent code anywhere else.
+ */
+
+static inline int
+do_load_som_binary(struct linux_binprm * bprm, struct pt_regs * regs)
+{
+	int som_exec_fileno;
+	int retval;
+	unsigned int size;
+	unsigned long som_entry;
+	struct som_hdr *som_ex;
+	struct som_exec_auxhdr *hpuxhdr;
+
+	/* Get the exec-header */
+	som_ex = (struct som_hdr *) bprm->buf;
+
+	retval = check_som_header(som_ex);
+	if (retval != 0)
+		goto out;
+
+	/* Now read in the auxiliary header information */
+
+	retval = -ENOMEM;
+	size = som_ex->aux_header_size;
+	if (size > SOM_PAGESIZE)
+		goto out;
+	hpuxhdr = (struct som_exec_auxhdr *) kmalloc(size, GFP_KERNEL);
+	if (!hpuxhdr)
+		goto out;
+
+	retval = kernel_read(bprm->file, som_ex->aux_header_location,
+			(char *) hpuxhdr, size);
+	if (retval < 0)
+		goto out_free;
+#error "Fix security hole before enabling me"
+	retval = get_unused_fd();
+	if (retval < 0)
+		goto out_free;
+	get_file(bprm->file);
+	fd_install(som_exec_fileno = retval, bprm->file);
+
+	/* Flush all traces of the currently running executable */
+	retval = flush_old_exec(bprm);
+	if (retval)
+		goto out_free;
+
+	/* OK, This is the point of no return */
+	current->flags &= ~PF_FORKNOEXEC;
+	current->personality = PER_HPUX;
+
+	/* Set the task size for HP-UX processes such that
+	 * the gateway page is outside the address space.
+	 * This can be fixed later, but for now, this is much
+	 * easier.
+	 */
+
+	current->thread.task_size = 0xc0000000;
+
+	/* Set map base to allow enough room for hp-ux heap growth */
+
+	current->thread.map_base = 0x80000000;
+
+	retval = map_som_binary(bprm->file, hpuxhdr);
+	if (retval < 0)
+		goto out_free;
+
+	som_entry = hpuxhdr->exec_entry;
+	kfree(hpuxhdr);
+
+	set_binfmt(&som_format);
+	compute_creds(bprm);
+	setup_arg_pages(bprm);
+
+	create_som_tables(bprm);
+
+	current->mm->start_stack = bprm->p;
+	current->mm->rss = 0;
+
+#if 0
+	printk("(start_brk) %08lx\n" , (unsigned long) current->mm->start_brk);
+	printk("(end_code) %08lx\n" , (unsigned long) current->mm->end_code);
+	printk("(start_code) %08lx\n" , (unsigned long) current->mm->start_code);
+	printk("(end_data) %08lx\n" , (unsigned long) current->mm->end_data);
+	printk("(start_stack) %08lx\n" , (unsigned long) current->mm->start_stack);
+	printk("(brk) %08lx\n" , (unsigned long) current->mm->brk);
+#endif
+
+	map_hpux_gateway_page(current,current->mm);
+
+	start_thread_som(regs, som_entry, bprm->p);
+	if (current->ptrace & PT_PTRACED)
+		send_sig(SIGTRAP, current, 0);
+	return 0;
+
+	/* error cleanup */
+out_free:
+	kfree(hpuxhdr);
+out:
+	return retval;
+}
+
+static int
+load_som_binary(struct linux_binprm * bprm, struct pt_regs * regs)
+{
+	int retval;
+
+	MOD_INC_USE_COUNT;
+	retval = do_load_som_binary(bprm, regs);
+	MOD_DEC_USE_COUNT;
+	return retval;
+}
+
+static inline int
+do_load_som_library(struct file *f)
+{
+/* No lib support in SOM yet.  gizza chance.. */
+	return -ENOEXEC;
+}
+
+static int load_som_library(struct file *f)
+{
+	int retval;
+
+	MOD_INC_USE_COUNT;
+	retval = do_load_som_library(f);
+	MOD_DEC_USE_COUNT;
+	return retval;
+}
+
+	/* Install the SOM loader.
+	 * N.B. We *rely* on the table being the right size with the
+	 * right number of free slots...
+	 */
+
+static int __init init_som_binfmt(void)
+{
+	return register_binfmt(&som_format);
+}
+
+static void __exit exit_som_binfmt(void)
+{
+	/* Remove the SOM loader. */
+	unregister_binfmt(&som_format);
+}
+
+module_init(init_som_binfmt);
+module_exit(exit_som_binfmt);
+
diff --git a/fs/block_dev.c b/fs/block_dev.c
new file mode 100644
index 00000000000000..64cdc20c3e39ff
--- /dev/null
+++ b/fs/block_dev.c
@@ -0,0 +1,695 @@
+/*
+ *  linux/fs/block_dev.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *  Copyright (C) 2001  Andrea Arcangeli <andrea@suse.de> SuSE
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/locks.h>
+#include <linux/fcntl.h>
+#include <linux/slab.h>
+#include <linux/kmod.h>
+#include <linux/major.h>
+#include <linux/devfs_fs_kernel.h>
+#include <linux/smp_lock.h>
+#include <linux/iobuf.h>
+#include <linux/highmem.h>
+#include <linux/blkdev.h>
+#include <linux/module.h>
+
+#include <asm/uaccess.h>
+
+static unsigned long max_block(kdev_t dev)
+{
+	unsigned int retval = ~0U;
+	int major = MAJOR(dev);
+
+	if (blk_size[major]) {
+		int minor = MINOR(dev);
+		unsigned int blocks = blk_size[major][minor];
+		if (blocks) {
+			unsigned int size = block_size(dev);
+			unsigned int sizebits = blksize_bits(size);
+			blocks += (size-1) >> BLOCK_SIZE_BITS;
+			retval = blocks << (BLOCK_SIZE_BITS - sizebits);
+			if (sizebits > BLOCK_SIZE_BITS)
+				retval = blocks >> (sizebits - BLOCK_SIZE_BITS);
+		}
+	}
+	return retval;
+}
+
+static loff_t blkdev_size(kdev_t dev)
+{
+	unsigned int blocks = ~0U;
+	int major = MAJOR(dev);
+
+	if (blk_size[major]) {
+		int minor = MINOR(dev);
+		blocks = blk_size[major][minor];
+	}
+	return (loff_t) blocks << BLOCK_SIZE_BITS;
+}
+
+/* Kill _all_ buffers, dirty or not.. */
+static void kill_bdev(struct block_device *bdev)
+{
+	invalidate_bdev(bdev, 1);
+	truncate_inode_pages(bdev->bd_inode->i_mapping, 0);
+}	
+
+int set_blocksize(kdev_t dev, int size)
+{
+	int oldsize;
+	struct block_device *bdev;
+
+	/* Size must be a power of two, and between 512 and PAGE_SIZE */
+	if (size > PAGE_SIZE || size < 512 || (size & (size-1)))
+		return -EINVAL;
+
+	/* Size cannot be smaller than the size supported by the device */
+	if (size < get_hardsect_size(dev))
+		return -EINVAL;
+
+	/* No blocksize array? Implies hardcoded BLOCK_SIZE */
+	if (!blksize_size[MAJOR(dev)]) {
+		if (size == BLOCK_SIZE)
+			return 0;
+		return -EINVAL;
+	}
+
+	oldsize = blksize_size[MAJOR(dev)][MINOR(dev)];
+	if (oldsize == size)
+		return 0;
+
+	if (!oldsize && size == BLOCK_SIZE) {
+		blksize_size[MAJOR(dev)][MINOR(dev)] = size;
+		return 0;
+	}
+
+	/* Ok, we're actually changing the blocksize.. */
+	bdev = bdget(dev);
+	sync_buffers(dev, 2);
+	blksize_size[MAJOR(dev)][MINOR(dev)] = size;
+	bdev->bd_inode->i_blkbits = blksize_bits(size);
+	kill_bdev(bdev);
+	bdput(bdev);
+	return 0;
+}
+
+int sb_set_blocksize(struct super_block *sb, int size)
+{
+	int bits;
+	if (set_blocksize(sb->s_dev, size) < 0)
+		return 0;
+	sb->s_blocksize = size;
+	for (bits = 9, size >>= 9; size >>= 1; bits++)
+		;
+	sb->s_blocksize_bits = bits;
+	return sb->s_blocksize;
+}
+
+int sb_min_blocksize(struct super_block *sb, int size)
+{
+	int minsize = get_hardsect_size(sb->s_dev);
+	if (size < minsize)
+		size = minsize;
+	return sb_set_blocksize(sb, size);
+}
+
+static int blkdev_get_block(struct inode * inode, long iblock, struct buffer_head * bh, int create)
+{
+	if (iblock >= max_block(inode->i_rdev))
+		return -EIO;
+
+	bh->b_dev = inode->i_rdev;
+	bh->b_blocknr = iblock;
+	bh->b_state |= 1UL << BH_Mapped;
+	return 0;
+}
+
+static int blkdev_direct_IO(int rw, struct inode * inode, struct kiobuf * iobuf, unsigned long blocknr, int blocksize)
+{
+	return generic_direct_IO(rw, inode, iobuf, blocknr, blocksize, blkdev_get_block);
+}
+
+static int blkdev_writepage(struct page * page)
+{
+	return block_write_full_page(page, blkdev_get_block);
+}
+
+static int blkdev_readpage(struct file * file, struct page * page)
+{
+	return block_read_full_page(page, blkdev_get_block);
+}
+
+static int blkdev_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)
+{
+	return block_prepare_write(page, from, to, blkdev_get_block);
+}
+
+static int blkdev_commit_write(struct file *file, struct page *page, unsigned from, unsigned to)
+{
+	return block_commit_write(page, from, to);
+}
+
+/*
+ * private llseek:
+ * for a block special file file->f_dentry->d_inode->i_size is zero
+ * so we compute the size by hand (just as in block_read/write above)
+ */
+static loff_t block_llseek(struct file *file, loff_t offset, int origin)
+{
+	/* ewww */
+	loff_t size = file->f_dentry->d_inode->i_bdev->bd_inode->i_size;
+	loff_t retval;
+
+	switch (origin) {
+		case 2:
+			offset += size;
+			break;
+		case 1:
+			offset += file->f_pos;
+	}
+	retval = -EINVAL;
+	if (offset >= 0 && offset <= size) {
+		if (offset != file->f_pos) {
+			file->f_pos = offset;
+			file->f_reada = 0;
+			file->f_version = ++event;
+		}
+		retval = offset;
+	}
+	return retval;
+}
+	
+
+static int __block_fsync(struct inode * inode)
+{
+	int ret, err;
+
+	ret = filemap_fdatasync(inode->i_mapping);
+	err = sync_buffers(inode->i_rdev, 1);
+	if (err && !ret)
+		ret = err;
+	err = filemap_fdatawait(inode->i_mapping);
+	if (err && !ret)
+		ret = err;
+
+	return ret;
+}
+
+/*
+ *	Filp may be NULL when we are called by an msync of a vma
+ *	since the vma has no handle.
+ */
+ 
+static int block_fsync(struct file *filp, struct dentry *dentry, int datasync)
+{
+	struct inode * inode = dentry->d_inode;
+
+	return __block_fsync(inode);
+}
+
+/*
+ * pseudo-fs
+ */
+
+static struct super_block *bd_read_super(struct super_block *sb, void *data, int silent)
+{
+	static struct super_operations sops = {};
+	struct inode *root = new_inode(sb);
+	if (!root)
+		return NULL;
+	root->i_mode = S_IFDIR | S_IRUSR | S_IWUSR;
+	root->i_uid = root->i_gid = 0;
+	root->i_atime = root->i_mtime = root->i_ctime = CURRENT_TIME;
+	sb->s_maxbytes = ~0ULL;
+	sb->s_blocksize = 1024;
+	sb->s_blocksize_bits = 10;
+	sb->s_magic = 0x62646576;
+	sb->s_op = &sops;
+	sb->s_root = d_alloc(NULL, &(const struct qstr) { "bdev:", 5, 0 });
+	if (!sb->s_root) {
+		iput(root);
+		return NULL;
+	}
+	sb->s_root->d_sb = sb;
+	sb->s_root->d_parent = sb->s_root;
+	d_instantiate(sb->s_root, root);
+	return sb;
+}
+
+static DECLARE_FSTYPE(bd_type, "bdev", bd_read_super, FS_NOMOUNT);
+
+static struct vfsmount *bd_mnt;
+
+/*
+ * bdev cache handling - shamelessly stolen from inode.c
+ * We use smaller hashtable, though.
+ */
+
+#define HASH_BITS	6
+#define HASH_SIZE	(1UL << HASH_BITS)
+#define HASH_MASK	(HASH_SIZE-1)
+static struct list_head bdev_hashtable[HASH_SIZE];
+static spinlock_t bdev_lock __cacheline_aligned_in_smp = SPIN_LOCK_UNLOCKED;
+static kmem_cache_t * bdev_cachep;
+
+#define alloc_bdev() \
+	 ((struct block_device *) kmem_cache_alloc(bdev_cachep, SLAB_KERNEL))
+#define destroy_bdev(bdev) kmem_cache_free(bdev_cachep, (bdev))
+
+static void init_once(void * foo, kmem_cache_t * cachep, unsigned long flags)
+{
+	struct block_device * bdev = (struct block_device *) foo;
+
+	if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
+	    SLAB_CTOR_CONSTRUCTOR)
+	{
+		memset(bdev, 0, sizeof(*bdev));
+		sema_init(&bdev->bd_sem, 1);
+		INIT_LIST_HEAD(&bdev->bd_inodes);
+	}
+}
+
+void __init bdev_cache_init(void)
+{
+	int i, err;
+	struct list_head *head = bdev_hashtable;
+
+	i = HASH_SIZE;
+	do {
+		INIT_LIST_HEAD(head);
+		head++;
+		i--;
+	} while (i);
+
+	bdev_cachep = kmem_cache_create("bdev_cache",
+					 sizeof(struct block_device),
+					 0, SLAB_HWCACHE_ALIGN, init_once,
+					 NULL);
+	if (!bdev_cachep)
+		panic("Cannot create bdev_cache SLAB cache");
+	err = register_filesystem(&bd_type);
+	if (err)
+		panic("Cannot register bdev pseudo-fs");
+	bd_mnt = kern_mount(&bd_type);
+	err = PTR_ERR(bd_mnt);
+	if (IS_ERR(bd_mnt))
+		panic("Cannot create bdev pseudo-fs");
+}
+
+/*
+ * Most likely _very_ bad one - but then it's hardly critical for small
+ * /dev and can be fixed when somebody will need really large one.
+ */
+static inline unsigned long hash(dev_t dev)
+{
+	unsigned long tmp = dev;
+	tmp = tmp + (tmp >> HASH_BITS) + (tmp >> HASH_BITS*2);
+	return tmp & HASH_MASK;
+}
+
+static struct block_device *bdfind(dev_t dev, struct list_head *head)
+{
+	struct list_head *p;
+	struct block_device *bdev;
+	for (p=head->next; p!=head; p=p->next) {
+		bdev = list_entry(p, struct block_device, bd_hash);
+		if (bdev->bd_dev != dev)
+			continue;
+		atomic_inc(&bdev->bd_count);
+		return bdev;
+	}
+	return NULL;
+}
+
+struct block_device *bdget(dev_t dev)
+{
+	struct list_head * head = bdev_hashtable + hash(dev);
+	struct block_device *bdev, *new_bdev;
+	spin_lock(&bdev_lock);
+	bdev = bdfind(dev, head);
+	spin_unlock(&bdev_lock);
+	if (bdev)
+		return bdev;
+	new_bdev = alloc_bdev();
+	if (new_bdev) {
+		struct inode *inode = new_inode(bd_mnt->mnt_sb);
+		if (inode) {
+			kdev_t kdev = to_kdev_t(dev);
+			atomic_set(&new_bdev->bd_count,1);
+			new_bdev->bd_dev = dev;
+			new_bdev->bd_op = NULL;
+			new_bdev->bd_inode = inode;
+			inode->i_rdev = kdev;
+			inode->i_dev = kdev;
+			inode->i_bdev = new_bdev;
+			inode->i_data.a_ops = &def_blk_aops;
+			inode->i_data.gfp_mask = GFP_USER;
+			inode->i_mode = S_IFBLK;
+			spin_lock(&bdev_lock);
+			bdev = bdfind(dev, head);
+			if (!bdev) {
+				list_add(&new_bdev->bd_hash, head);
+				spin_unlock(&bdev_lock);
+				return new_bdev;
+			}
+			spin_unlock(&bdev_lock);
+			iput(new_bdev->bd_inode);
+		}
+		destroy_bdev(new_bdev);
+	}
+	return bdev;
+}
+
+static inline void __bd_forget(struct inode *inode)
+{
+	list_del_init(&inode->i_devices);
+	inode->i_bdev = NULL;
+	inode->i_mapping = &inode->i_data;
+}
+
+void bdput(struct block_device *bdev)
+{
+	if (atomic_dec_and_lock(&bdev->bd_count, &bdev_lock)) {
+		struct list_head *p;
+		if (bdev->bd_openers)
+			BUG();
+		list_del(&bdev->bd_hash);
+		while ( (p = bdev->bd_inodes.next) != &bdev->bd_inodes ) {
+			__bd_forget(list_entry(p, struct inode, i_devices));
+		}
+		spin_unlock(&bdev_lock);
+		iput(bdev->bd_inode);
+		destroy_bdev(bdev);
+	}
+}
+ 
+int bd_acquire(struct inode *inode)
+{
+	struct block_device *bdev;
+	spin_lock(&bdev_lock);
+	if (inode->i_bdev) {
+		atomic_inc(&inode->i_bdev->bd_count);
+		spin_unlock(&bdev_lock);
+		return 0;
+	}
+	spin_unlock(&bdev_lock);
+	bdev = bdget(kdev_t_to_nr(inode->i_rdev));
+	if (!bdev)
+		return -ENOMEM;
+	spin_lock(&bdev_lock);
+	if (!inode->i_bdev) {
+		inode->i_bdev = bdev;
+		inode->i_mapping = bdev->bd_inode->i_mapping;
+		list_add(&inode->i_devices, &bdev->bd_inodes);
+	} else if (inode->i_bdev != bdev)
+		BUG();
+	spin_unlock(&bdev_lock);
+	return 0;
+}
+
+/* Call when you free inode */
+
+void bd_forget(struct inode *inode)
+{
+	spin_lock(&bdev_lock);
+	if (inode->i_bdev)
+		__bd_forget(inode);
+	spin_unlock(&bdev_lock);
+}
+
+static struct {
+	const char *name;
+	struct block_device_operations *bdops;
+} blkdevs[MAX_BLKDEV];
+
+int get_blkdev_list(char * p)
+{
+	int i;
+	int len;
+
+	len = sprintf(p, "\nBlock devices:\n");
+	for (i = 0; i < MAX_BLKDEV ; i++) {
+		if (blkdevs[i].bdops) {
+			len += sprintf(p+len, "%3d %s\n", i, blkdevs[i].name);
+		}
+	}
+	return len;
+}
+
+/*
+	Return the function table of a device.
+	Load the driver if needed.
+*/
+const struct block_device_operations * get_blkfops(unsigned int major)
+{
+	const struct block_device_operations *ret = NULL;
+
+	/* major 0 is used for non-device mounts */
+	if (major && major < MAX_BLKDEV) {
+#ifdef CONFIG_KMOD
+		if (!blkdevs[major].bdops) {
+			char name[20];
+			sprintf(name, "block-major-%d", major);
+			request_module(name);
+		}
+#endif
+		ret = blkdevs[major].bdops;
+	}
+	return ret;
+}
+
+int register_blkdev(unsigned int major, const char * name, struct block_device_operations *bdops)
+{
+	if (major == 0) {
+		for (major = MAX_BLKDEV-1; major > 0; major--) {
+			if (blkdevs[major].bdops == NULL) {
+				blkdevs[major].name = name;
+				blkdevs[major].bdops = bdops;
+				return major;
+			}
+		}
+		return -EBUSY;
+	}
+	if (major >= MAX_BLKDEV)
+		return -EINVAL;
+	if (blkdevs[major].bdops && blkdevs[major].bdops != bdops)
+		return -EBUSY;
+	blkdevs[major].name = name;
+	blkdevs[major].bdops = bdops;
+	return 0;
+}
+
+int unregister_blkdev(unsigned int major, const char * name)
+{
+	if (major >= MAX_BLKDEV)
+		return -EINVAL;
+	if (!blkdevs[major].bdops)
+		return -EINVAL;
+	if (strcmp(blkdevs[major].name, name))
+		return -EINVAL;
+	blkdevs[major].name = NULL;
+	blkdevs[major].bdops = NULL;
+	return 0;
+}
+
+/*
+ * This routine checks whether a removable media has been changed,
+ * and invalidates all buffer-cache-entries in that case. This
+ * is a relatively slow routine, so we have to try to minimize using
+ * it. Thus it is called only upon a 'mount' or 'open'. This
+ * is the best way of combining speed and utility, I think.
+ * People changing diskettes in the middle of an operation deserve
+ * to lose :-)
+ */
+int check_disk_change(kdev_t dev)
+{
+	int i;
+	const struct block_device_operations * bdops = NULL;
+
+	i = MAJOR(dev);
+	if (i < MAX_BLKDEV)
+		bdops = blkdevs[i].bdops;
+	if (bdops == NULL) {
+		devfs_handle_t de;
+
+		de = devfs_find_handle (NULL, NULL, i, MINOR (dev),
+					DEVFS_SPECIAL_BLK, 0);
+		if (de) {
+			bdops = devfs_get_ops (de);
+			devfs_put_ops (de); /* We're running in owner module */
+		}
+	}
+	if (bdops == NULL)
+		return 0;
+	if (bdops->check_media_change == NULL)
+		return 0;
+	if (!bdops->check_media_change(dev))
+		return 0;
+
+	if (invalidate_device(dev, 0))
+		printk("VFS: busy inodes on changed media.\n");
+
+	if (bdops->revalidate)
+		bdops->revalidate(dev);
+	return 1;
+}
+
+int ioctl_by_bdev(struct block_device *bdev, unsigned cmd, unsigned long arg)
+{
+	int res;
+	mm_segment_t old_fs = get_fs();
+
+	if (!bdev->bd_op->ioctl)
+		return -EINVAL;
+	set_fs(KERNEL_DS);
+	res = bdev->bd_op->ioctl(bdev->bd_inode, NULL, cmd, arg);
+	set_fs(old_fs);
+	return res;
+}
+
+static int do_open(struct block_device *bdev, struct inode *inode, struct file *file)
+{
+	int ret = -ENXIO;
+	kdev_t dev = to_kdev_t(bdev->bd_dev);
+
+	down(&bdev->bd_sem);
+	lock_kernel();
+	if (!bdev->bd_op)
+		bdev->bd_op = get_blkfops(MAJOR(dev));
+	if (bdev->bd_op) {
+		ret = 0;
+		if (bdev->bd_op->owner)
+			__MOD_INC_USE_COUNT(bdev->bd_op->owner);
+		if (bdev->bd_op->open)
+			ret = bdev->bd_op->open(inode, file);
+		if (!ret) {
+			bdev->bd_openers++;
+			bdev->bd_inode->i_size = blkdev_size(dev);
+			bdev->bd_inode->i_blkbits = blksize_bits(block_size(dev));
+		} else {
+			if (bdev->bd_op->owner)
+				__MOD_DEC_USE_COUNT(bdev->bd_op->owner);
+			if (!bdev->bd_openers)
+				bdev->bd_op = NULL;
+		}
+	}
+	unlock_kernel();
+	up(&bdev->bd_sem);
+	if (ret)
+		bdput(bdev);
+	return ret;
+}
+
+int blkdev_get(struct block_device *bdev, mode_t mode, unsigned flags, int kind)
+{
+	/*
+	 * This crockload is due to bad choice of ->open() type.
+	 * It will go away.
+	 * For now, block device ->open() routine must _not_
+	 * examine anything in 'inode' argument except ->i_rdev.
+	 */
+	struct file fake_file = {};
+	struct dentry fake_dentry = {};
+	fake_file.f_mode = mode;
+	fake_file.f_flags = flags;
+	fake_file.f_dentry = &fake_dentry;
+	fake_dentry.d_inode = bdev->bd_inode;
+
+	return do_open(bdev, bdev->bd_inode, &fake_file);
+}
+
+int blkdev_open(struct inode * inode, struct file * filp)
+{
+	struct block_device *bdev;
+
+	/*
+	 * Preserve backwards compatibility and allow large file access
+	 * even if userspace doesn't ask for it explicitly. Some mkfs
+	 * binary needs it. We might want to drop this workaround
+	 * during an unstable branch.
+	 */
+	filp->f_flags |= O_LARGEFILE;
+
+	bd_acquire(inode);
+	bdev = inode->i_bdev;
+
+	return do_open(bdev, inode, filp);
+}	
+
+int blkdev_put(struct block_device *bdev, int kind)
+{
+	int ret = 0;
+	kdev_t rdev = to_kdev_t(bdev->bd_dev); /* this should become bdev */
+	struct inode *bd_inode = bdev->bd_inode;
+
+	down(&bdev->bd_sem);
+	lock_kernel();
+	if (kind == BDEV_FILE)
+		__block_fsync(bd_inode);
+	else if (kind == BDEV_FS)
+		fsync_no_super(rdev);
+	if (!--bdev->bd_openers)
+		kill_bdev(bdev);
+	if (bdev->bd_op->release)
+		ret = bdev->bd_op->release(bd_inode, NULL);
+	if (bdev->bd_op->owner)
+		__MOD_DEC_USE_COUNT(bdev->bd_op->owner);
+	if (!bdev->bd_openers)
+		bdev->bd_op = NULL;
+	unlock_kernel();
+	up(&bdev->bd_sem);
+	bdput(bdev);
+	return ret;
+}
+
+int blkdev_close(struct inode * inode, struct file * filp)
+{
+	return blkdev_put(inode->i_bdev, BDEV_FILE);
+}
+
+static int blkdev_ioctl(struct inode *inode, struct file *file, unsigned cmd,
+			unsigned long arg)
+{
+	if (inode->i_bdev->bd_op->ioctl)
+		return inode->i_bdev->bd_op->ioctl(inode, file, cmd, arg);
+	return -EINVAL;
+}
+
+struct address_space_operations def_blk_aops = {
+	readpage: blkdev_readpage,
+	writepage: blkdev_writepage,
+	sync_page: block_sync_page,
+	prepare_write: blkdev_prepare_write,
+	commit_write: blkdev_commit_write,
+	direct_IO: blkdev_direct_IO,
+};
+
+struct file_operations def_blk_fops = {
+	open:		blkdev_open,
+	release:	blkdev_close,
+	llseek:		block_llseek,
+	read:		generic_file_read,
+	write:		generic_file_write,
+	mmap:		generic_file_mmap,
+	fsync:		block_fsync,
+	ioctl:		blkdev_ioctl,
+};
+
+const char * bdevname(kdev_t dev)
+{
+	static char buffer[32];
+	const char * name = blkdevs[MAJOR(dev)].name;
+
+	if (!name)
+		name = "unknown-block";
+
+	sprintf(buffer, "%s(%d,%d)", name, MAJOR(dev), MINOR(dev));
+	return buffer;
+}
diff --git a/fs/buffer.c b/fs/buffer.c
new file mode 100644
index 00000000000000..0271d77b0135ad
--- /dev/null
+++ b/fs/buffer.c
@@ -0,0 +1,3146 @@
+/*
+ *  linux/fs/buffer.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ */
+
+/*
+ *  'buffer.c' implements the buffer-cache functions. Race-conditions have
+ * been avoided by NEVER letting an interrupt change a buffer (except for the
+ * data, of course), but instead letting the caller do it.
+ */
+
+/* Start bdflush() with kernel_thread not syscall - Paul Gortmaker, 12/95 */
+
+/* Removed a lot of unnecessary code and simplified things now that
+ * the buffer cache isn't our primary cache - Andrew Tridgell 12/96
+ */
+
+/* Speed up hash, lru, and free list operations.  Use gfp() for allocating
+ * hash table, use SLAB cache for buffer heads. -DaveM
+ */
+
+/* Added 32k buffer block sizes - these are required older ARM systems.
+ * - RMK
+ */
+
+/* Thread it... -DaveM */
+
+/* async buffer flushing, 1999 Andrea Arcangeli <andrea@suse.de> */
+
+#include <linux/config.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/slab.h>
+#include <linux/locks.h>
+#include <linux/errno.h>
+#include <linux/swap.h>
+#include <linux/swapctl.h>
+#include <linux/smp_lock.h>
+#include <linux/vmalloc.h>
+#include <linux/blkdev.h>
+#include <linux/sysrq.h>
+#include <linux/file.h>
+#include <linux/init.h>
+#include <linux/quotaops.h>
+#include <linux/iobuf.h>
+#include <linux/highmem.h>
+#include <linux/module.h>
+#include <linux/completion.h>
+
+#include <asm/uaccess.h>
+#include <asm/io.h>
+#include <asm/bitops.h>
+#include <asm/mmu_context.h>
+
+#define NR_RESERVED (10*MAX_BUF_PER_PAGE)
+#define MAX_UNUSED_BUFFERS NR_RESERVED+20 /* don't ever have more than this 
+					     number of unused buffer heads */
+
+/* Anti-deadlock ordering:
+ *	lru_list_lock > hash_table_lock > unused_list_lock
+ */
+
+#define BH_ENTRY(list) list_entry((list), struct buffer_head, b_inode_buffers)
+
+/*
+ * Hash table gook..
+ */
+static unsigned int bh_hash_mask;
+static unsigned int bh_hash_shift;
+static struct buffer_head **hash_table;
+static rwlock_t hash_table_lock = RW_LOCK_UNLOCKED;
+
+static struct buffer_head *lru_list[NR_LIST];
+
+static spinlock_cacheline_t lru_list_lock_cacheline = {SPIN_LOCK_UNLOCKED};
+#define lru_list_lock  lru_list_lock_cacheline.lock
+
+static int nr_buffers_type[NR_LIST];
+static unsigned long size_buffers_type[NR_LIST];
+
+static struct buffer_head * unused_list;
+static int nr_unused_buffer_heads;
+static spinlock_t unused_list_lock = SPIN_LOCK_UNLOCKED;
+static DECLARE_WAIT_QUEUE_HEAD(buffer_wait);
+
+static int grow_buffers(kdev_t dev, unsigned long block, int size);
+static int osync_buffers_list(struct list_head *);
+static void __refile_buffer(struct buffer_head *);
+
+/*
+ * A global sysctl-controlled flag which puts the machine into "laptop mode"
+ */
+int laptop_mode;
+
+static DECLARE_WAIT_QUEUE_HEAD(kupdate_wait);
+
+/* This is used by some architectures to estimate available memory. */
+atomic_t buffermem_pages = ATOMIC_INIT(0);
+
+/* Here is the parameter block for the bdflush process. If you add or
+ * remove any of the parameters, make sure to update kernel/sysctl.c
+ * and the documentation at linux/Documentation/sysctl/vm.txt.
+ */
+
+#define N_PARAM 9
+
+/* The dummy values in this structure are left in there for compatibility
+ * with old programs that play with the /proc entries.
+ */
+union bdflush_param {
+	struct {
+		int nfract;	/* Percentage of buffer cache dirty to 
+				   activate bdflush */
+		int ndirty;	/* Maximum number of dirty blocks to write out per
+				   wake-cycle */
+		int dummy2;	/* old "nrefill" */
+		int dummy3;	/* unused */
+		int interval;	/* jiffies delay between kupdate flushes */
+		int age_buffer;	/* Time for normal buffer to age before we flush it */
+		int nfract_sync;/* Percentage of buffer cache dirty to 
+				   activate bdflush synchronously */
+		int nfract_stop_bdflush; /* Percetange of buffer cache dirty to stop bdflush */
+		int dummy5;	/* unused */
+	} b_un;
+	unsigned int data[N_PARAM];
+} bdf_prm = {{30, 500, 0, 0, 5*HZ, 30*HZ, 60, 20, 0}};
+
+/* These are the min and max parameter values that we will allow to be assigned */
+int bdflush_min[N_PARAM] = {  0,  1,    0,   0,  0,   1*HZ,   0, 0, 0};
+int bdflush_max[N_PARAM] = {100,50000, 20000, 20000,10000*HZ, 10000*HZ, 100, 100, 0};
+
+static inline int write_buffer_delay(struct buffer_head *bh)
+{
+	struct page *page = bh->b_page;
+
+	if (!TryLockPage(page)) {
+		spin_unlock(&lru_list_lock);
+		unlock_buffer(bh);
+		page->mapping->a_ops->writepage(page);
+		return 1;
+	}
+
+	return 0;
+}
+
+static inline void write_buffer(struct buffer_head *bh)
+{
+	if (buffer_delay(bh)) {
+		struct page *page = bh->b_page;
+
+		lock_page(page);
+		if (buffer_delay(bh)) {
+			page->mapping->a_ops->writepage(page);
+			return;
+		}
+		unlock_page(page);
+	}
+
+	ll_rw_block(WRITE, 1, &bh);
+}
+
+void fastcall unlock_buffer(struct buffer_head *bh)
+{
+	clear_bit(BH_Wait_IO, &bh->b_state);
+	clear_bit(BH_Launder, &bh->b_state);
+	/*
+	 * When a locked buffer is visible to the I/O layer BH_Launder
+	 * is set. This means before unlocking we must clear BH_Launder,
+	 * mb() on alpha and then clear BH_Lock, so no reader can see
+	 * BH_Launder set on an unlocked buffer and then risk to deadlock.
+	 */
+	smp_mb__after_clear_bit();
+	clear_bit(BH_Lock, &bh->b_state);
+	smp_mb__after_clear_bit();
+	if (waitqueue_active(&bh->b_wait))
+		wake_up(&bh->b_wait);
+}
+
+/*
+ * Note that the real wait_on_buffer() is an inline function that checks
+ * that the buffer is locked before calling this, so that unnecessary disk
+ * unplugging does not occur.
+ */
+void __wait_on_buffer(struct buffer_head * bh)
+{
+	struct task_struct *tsk = current;
+	DECLARE_WAITQUEUE(wait, tsk);
+
+	get_bh(bh);
+	add_wait_queue(&bh->b_wait, &wait);
+	do {
+		set_task_state(tsk, TASK_UNINTERRUPTIBLE);
+		if (!buffer_locked(bh))
+			break;
+		/*
+		 * We must read tq_disk in TQ_ACTIVE after the
+		 * add_wait_queue effect is visible to other cpus.
+		 * We could unplug some line above it wouldn't matter
+		 * but we can't do that right after add_wait_queue
+		 * without an smp_mb() in between because spin_unlock
+		 * has inclusive semantics.
+		 * Doing it here is the most efficient place so we
+		 * don't do a suprious unplug if we get a racy
+		 * wakeup that make buffer_locked to return 0, and
+		 * doing it here avoids an explicit smp_mb() we
+		 * rely on the implicit one in set_task_state.
+		 */
+		run_task_queue(&tq_disk);
+		schedule();
+	} while (buffer_locked(bh));
+	tsk->state = TASK_RUNNING;
+	remove_wait_queue(&bh->b_wait, &wait);
+	put_bh(bh);
+}
+
+/*
+ * Default synchronous end-of-IO handler..  Just mark it up-to-date and
+ * unlock the buffer. This is what ll_rw_block uses too.
+ */
+void end_buffer_io_sync(struct buffer_head *bh, int uptodate)
+{
+	mark_buffer_uptodate(bh, uptodate);
+	unlock_buffer(bh);
+	put_bh(bh);
+}
+
+/*
+ * The buffers have been marked clean and locked.  Just submit the dang
+ * things.. 
+ */
+static void write_locked_buffers(struct buffer_head **array, unsigned int count)
+{
+	do {
+		struct buffer_head * bh = *array++;
+		bh->b_end_io = end_buffer_io_sync;
+		submit_bh(WRITE, bh);
+	} while (--count);
+}
+
+/*
+ * Write some buffers from the head of the dirty queue.
+ *
+ * This must be called with the LRU lock held, and will
+ * return without it!
+ */
+#define NRSYNC (32)
+static int write_some_buffers(kdev_t dev)
+{
+	struct buffer_head *next;
+	struct buffer_head *array[NRSYNC];
+	unsigned int count;
+	int nr;
+
+	next = lru_list[BUF_DIRTY];
+	nr = nr_buffers_type[BUF_DIRTY];
+	count = 0;
+	while (next && --nr >= 0) {
+		struct buffer_head * bh = next;
+		next = bh->b_next_free;
+
+		if (dev != NODEV && bh->b_dev != dev)
+			continue;
+		if (test_and_set_bit(BH_Lock, &bh->b_state))
+			continue;
+		if (buffer_delay(bh)) {
+			if (write_buffer_delay(bh)) {
+				if (count)
+					write_locked_buffers(array, count);
+				return -EAGAIN;
+			}
+		} else if (atomic_set_buffer_clean(bh)) {
+			__refile_buffer(bh);
+			get_bh(bh);
+			array[count++] = bh;
+			if (count < NRSYNC)
+				continue;
+
+			spin_unlock(&lru_list_lock);
+			write_locked_buffers(array, count);
+			return -EAGAIN;
+		}
+		unlock_buffer(bh);
+		__refile_buffer(bh);
+	}
+	spin_unlock(&lru_list_lock);
+
+	if (count)
+		write_locked_buffers(array, count);
+	return 0;
+}
+
+/*
+ * Write out all buffers on the dirty list.
+ */
+static void write_unlocked_buffers(kdev_t dev)
+{
+	do
+		spin_lock(&lru_list_lock);
+	while (write_some_buffers(dev));
+}
+
+/*
+ * Wait for a buffer on the proper list.
+ *
+ * This must be called with the LRU lock held, and
+ * will return with it released.
+ */
+static int wait_for_buffers(kdev_t dev, int index, int refile)
+{
+	struct buffer_head * next;
+	int nr;
+
+	next = lru_list[index];
+	nr = nr_buffers_type[index];
+	while (next && --nr >= 0) {
+		struct buffer_head *bh = next;
+		next = bh->b_next_free;
+
+		if (!buffer_locked(bh)) {
+			if (refile)
+				__refile_buffer(bh);
+			continue;
+		}
+		if (dev != NODEV && bh->b_dev != dev)
+			continue;
+
+		get_bh(bh);
+		spin_unlock(&lru_list_lock);
+		wait_on_buffer (bh);
+		put_bh(bh);
+		return -EAGAIN;
+	}
+	spin_unlock(&lru_list_lock);
+	return 0;
+}
+
+static int wait_for_locked_buffers(kdev_t dev, int index, int refile)
+{
+	do {
+		spin_lock(&lru_list_lock);
+	} while (wait_for_buffers(dev, index, refile));
+	return 0;
+}
+
+/* Call sync_buffers with wait!=0 to ensure that the call does not
+ * return until all buffer writes have completed.  Sync() may return
+ * before the writes have finished; fsync() may not.
+ */
+
+/* Godamity-damn.  Some buffers (bitmaps for filesystems)
+ * spontaneously dirty themselves without ever brelse being called.
+ * We will ultimately want to put these in a separate list, but for
+ * now we search all of the lists for dirty buffers.
+ */
+int sync_buffers(kdev_t dev, int wait)
+{
+	int err = 0;
+
+	/* One pass for no-wait, three for wait:
+	 * 0) write out all dirty, unlocked buffers;
+	 * 1) wait for all dirty locked buffers;
+	 * 2) write out all dirty, unlocked buffers;
+	 * 2) wait for completion by waiting for all buffers to unlock.
+	 */
+	write_unlocked_buffers(dev);
+	if (wait) {
+		err = wait_for_locked_buffers(dev, BUF_DIRTY, 0);
+		write_unlocked_buffers(dev);
+		err |= wait_for_locked_buffers(dev, BUF_LOCKED, 1);
+	}
+	return err;
+}
+EXPORT_SYMBOL(sync_buffers);
+
+int fsync_super(struct super_block *sb)
+{
+	kdev_t dev = sb->s_dev;
+	sync_buffers(dev, 0);
+
+	lock_kernel();
+	sync_inodes_sb(sb);
+	DQUOT_SYNC_SB(sb);
+	lock_super(sb);
+	if (sb->s_dirt && sb->s_op && sb->s_op->write_super)
+		sb->s_op->write_super(sb);
+	unlock_super(sb);
+	if (sb->s_op && sb->s_op->sync_fs)
+		sb->s_op->sync_fs(sb);
+	unlock_kernel();
+
+	return sync_buffers(dev, 1);
+}
+
+int fsync_no_super(kdev_t dev)
+{
+	sync_buffers(dev, 0);
+	return sync_buffers(dev, 1);
+}
+
+int fsync_dev(kdev_t dev)
+{
+	sync_buffers(dev, 0);
+
+	lock_kernel();
+	sync_inodes(dev);
+	DQUOT_SYNC_DEV(dev);
+	sync_supers(dev, 1);
+	unlock_kernel();
+
+	return sync_buffers(dev, 1);
+}
+
+/*
+ * There's no real reason to pretend we should
+ * ever do anything differently
+ */
+void sync_dev(kdev_t dev)
+{
+	fsync_dev(dev);
+}
+
+asmlinkage long sys_sync(void)
+{
+	fsync_dev(0);
+	return 0;
+}
+
+/*
+ *	filp may be NULL if called via the msync of a vma.
+ */
+ 
+int file_fsync(struct file *filp, struct dentry *dentry, int datasync)
+{
+	struct inode * inode = dentry->d_inode;
+	struct super_block * sb;
+	kdev_t dev;
+	int ret;
+
+	lock_kernel();
+	/* sync the inode to buffers */
+	write_inode_now(inode, 0);
+
+	/* sync the superblock to buffers */
+	sb = inode->i_sb;
+	lock_super(sb);
+	if (sb->s_op && sb->s_op->write_super)
+		sb->s_op->write_super(sb);
+	unlock_super(sb);
+
+	/* .. finally sync the buffers to disk */
+	dev = inode->i_dev;
+	ret = sync_buffers(dev, 1);
+	unlock_kernel();
+	return ret;
+}
+
+asmlinkage long sys_fsync(unsigned int fd)
+{
+	struct file * file;
+	struct dentry * dentry;
+	struct inode * inode;
+	int ret, err;
+
+	ret = -EBADF;
+	file = fget(fd);
+	if (!file)
+		goto out;
+
+	dentry = file->f_dentry;
+	inode = dentry->d_inode;
+
+	ret = -EINVAL;
+	if (!file->f_op || !file->f_op->fsync) {
+		/* Why?  We can still call filemap_fdatasync */
+		goto out_putf;
+	}
+
+	/* We need to protect against concurrent writers.. */
+	down(&inode->i_sem);
+	ret = filemap_fdatasync(inode->i_mapping);
+	err = file->f_op->fsync(file, dentry, 0);
+	if (err && !ret)
+		ret = err;
+	err = filemap_fdatawait(inode->i_mapping);
+	if (err && !ret)
+		ret = err;
+	up(&inode->i_sem);
+
+out_putf:
+	fput(file);
+out:
+	return ret;
+}
+
+int do_fdatasync(struct file *file)
+{
+	int ret, err;
+	struct dentry *dentry;
+	struct inode *inode;
+
+	if (unlikely(!file->f_op || !file->f_op->fsync))
+		return -EINVAL;
+	
+	dentry = file->f_dentry;
+	inode = dentry->d_inode;
+
+	ret = filemap_fdatasync(inode->i_mapping);
+	err = file->f_op->fsync(file, dentry, 1);
+	if (err && !ret)
+		ret = err;
+	err = filemap_fdatawait(inode->i_mapping);
+	if (err && !ret)
+		ret = err;
+	return ret;
+}
+
+asmlinkage long sys_fdatasync(unsigned int fd)
+{
+	struct file * file;
+	struct inode *inode;
+	int ret;
+
+	ret = -EBADF;
+	file = fget(fd);
+	if (!file)
+		goto out;
+
+	inode = file->f_dentry->d_inode;
+	down(&inode->i_sem);
+	ret = do_fdatasync(file);
+	up(&inode->i_sem);
+
+	fput(file);
+out:
+	return ret;
+}
+
+/* After several hours of tedious analysis, the following hash
+ * function won.  Do not mess with it... -DaveM
+ */
+#define _hashfn(dev,block)	\
+	((((dev)<<(bh_hash_shift - 6)) ^ ((dev)<<(bh_hash_shift - 9))) ^ \
+	 (((block)<<(bh_hash_shift - 6)) ^ ((block) >> 13) ^ \
+	  ((block) << (bh_hash_shift - 12))))
+#define hash(dev,block) hash_table[(_hashfn(HASHDEV(dev),block) & bh_hash_mask)]
+
+static inline void __insert_into_hash_list(struct buffer_head *bh)
+{
+	struct buffer_head **head = &hash(bh->b_dev, bh->b_blocknr);
+	struct buffer_head *next = *head;
+
+	*head = bh;
+	bh->b_pprev = head;
+	bh->b_next = next;
+	if (next != NULL)
+		next->b_pprev = &bh->b_next;
+}
+
+static __inline__ void __hash_unlink(struct buffer_head *bh)
+{
+	struct buffer_head **pprev = bh->b_pprev;
+	if (pprev) {
+		struct buffer_head *next = bh->b_next;
+		if (next)
+			next->b_pprev = pprev;
+		*pprev = next;
+		bh->b_pprev = NULL;
+	}
+}
+
+static void __insert_into_lru_list(struct buffer_head * bh, int blist)
+{
+	struct buffer_head **bhp = &lru_list[blist];
+
+	if (bh->b_prev_free || bh->b_next_free) BUG();
+
+	if(!*bhp) {
+		*bhp = bh;
+		bh->b_prev_free = bh;
+	}
+	bh->b_next_free = *bhp;
+	bh->b_prev_free = (*bhp)->b_prev_free;
+	(*bhp)->b_prev_free->b_next_free = bh;
+	(*bhp)->b_prev_free = bh;
+	nr_buffers_type[blist]++;
+	size_buffers_type[blist] += bh->b_size;
+}
+
+static void __remove_from_lru_list(struct buffer_head * bh)
+{
+	struct buffer_head *next = bh->b_next_free;
+	if (next) {
+		struct buffer_head *prev = bh->b_prev_free;
+		int blist = bh->b_list;
+
+		prev->b_next_free = next;
+		next->b_prev_free = prev;
+		if (lru_list[blist] == bh) {
+			if (next == bh)
+				next = NULL;
+			lru_list[blist] = next;
+		}
+		bh->b_next_free = NULL;
+		bh->b_prev_free = NULL;
+		nr_buffers_type[blist]--;
+		size_buffers_type[blist] -= bh->b_size;
+	}
+}
+
+/* must be called with both the hash_table_lock and the lru_list_lock
+   held */
+static void __remove_from_queues(struct buffer_head *bh)
+{
+	__hash_unlink(bh);
+	__remove_from_lru_list(bh);
+}
+
+static void remove_from_queues(struct buffer_head *bh)
+{
+	spin_lock(&lru_list_lock);
+	write_lock(&hash_table_lock);
+	__remove_from_queues(bh);
+	write_unlock(&hash_table_lock);	
+	spin_unlock(&lru_list_lock);
+}
+
+struct buffer_head * get_hash_table(kdev_t dev, int block, int size)
+{
+	struct buffer_head *bh, **p = &hash(dev, block);
+
+	read_lock(&hash_table_lock);
+
+	for (;;) {
+		bh = *p;
+		if (!bh)
+			break;
+		p = &bh->b_next;
+		if (bh->b_blocknr != block)
+			continue;
+		if (bh->b_size != size)
+			continue;
+		if (bh->b_dev != dev)
+			continue;
+		get_bh(bh);
+		break;
+	}
+
+	read_unlock(&hash_table_lock);
+	return bh;
+}
+
+void fastcall buffer_insert_list(struct buffer_head *bh, struct list_head *list)
+{
+	spin_lock(&lru_list_lock);
+	if (buffer_attached(bh))
+		list_del(&bh->b_inode_buffers);
+	set_buffer_attached(bh);
+	list_add_tail(&bh->b_inode_buffers, list);
+	spin_unlock(&lru_list_lock);
+}
+
+/*
+ * The caller must have the lru_list lock before calling the 
+ * remove_inode_queue functions.
+ */
+static void __remove_inode_queue(struct buffer_head *bh)
+{
+	list_del(&bh->b_inode_buffers);
+	clear_buffer_attached(bh);
+}
+
+static inline void remove_inode_queue(struct buffer_head *bh)
+{
+	if (buffer_attached(bh))
+		__remove_inode_queue(bh);
+}
+
+int inode_has_buffers(struct inode *inode)
+{
+	int ret;
+	
+	spin_lock(&lru_list_lock);
+	ret = !list_empty(&inode->i_dirty_buffers) || !list_empty(&inode->i_dirty_data_buffers);
+	spin_unlock(&lru_list_lock);
+	
+	return ret;
+}
+
+/* If invalidate_buffers() will trash dirty buffers, it means some kind
+   of fs corruption is going on. Trashing dirty data always imply losing
+   information that was supposed to be just stored on the physical layer
+   by the user.
+
+   Thus invalidate_buffers in general usage is not allwowed to trash
+   dirty buffers. For example ioctl(FLSBLKBUF) expects dirty data to
+   be preserved.  These buffers are simply skipped.
+  
+   We also skip buffers which are still in use.  For example this can
+   happen if a userspace program is reading the block device.
+
+   NOTE: In the case where the user removed a removable-media-disk even if
+   there's still dirty data not synced on disk (due a bug in the device driver
+   or due an error of the user), by not destroying the dirty buffers we could
+   generate corruption also on the next media inserted, thus a parameter is
+   necessary to handle this case in the most safe way possible (trying
+   to not corrupt also the new disk inserted with the data belonging to
+   the old now corrupted disk). Also for the ramdisk the natural thing
+   to do in order to release the ramdisk memory is to destroy dirty buffers.
+
+   These are two special cases. Normal usage imply the device driver
+   to issue a sync on the device (without waiting I/O completion) and
+   then an invalidate_buffers call that doesn't trash dirty buffers.
+
+   For handling cache coherency with the blkdev pagecache the 'update' case
+   is been introduced. It is needed to re-read from disk any pinned
+   buffer. NOTE: re-reading from disk is destructive so we can do it only
+   when we assume nobody is changing the buffercache under our I/O and when
+   we think the disk contains more recent information than the buffercache.
+   The update == 1 pass marks the buffers we need to update, the update == 2
+   pass does the actual I/O. */
+void invalidate_bdev(struct block_device *bdev, int destroy_dirty_buffers)
+{
+	int i, nlist, slept;
+	struct buffer_head * bh, * bh_next;
+	kdev_t dev = to_kdev_t(bdev->bd_dev);	/* will become bdev */
+
+ retry:
+	slept = 0;
+	spin_lock(&lru_list_lock);
+	for(nlist = 0; nlist < NR_LIST; nlist++) {
+		bh = lru_list[nlist];
+		if (!bh)
+			continue;
+		for (i = nr_buffers_type[nlist]; i > 0 ; bh = bh_next, i--) {
+			bh_next = bh->b_next_free;
+
+			/* Another device? */
+			if (bh->b_dev != dev)
+				continue;
+			/* Not hashed? */
+			if (!bh->b_pprev)
+				continue;
+			if (buffer_locked(bh)) {
+				get_bh(bh);
+				spin_unlock(&lru_list_lock);
+				wait_on_buffer(bh);
+				slept = 1;
+				spin_lock(&lru_list_lock);
+				put_bh(bh);
+			}
+
+			write_lock(&hash_table_lock);
+			/* All buffers in the lru lists are mapped */
+			if (!buffer_mapped(bh))
+				BUG();
+			if (buffer_dirty(bh) && destroy_dirty_buffers)
+				printk("invalidate: dirty buffer\n");
+			if (!atomic_read(&bh->b_count)) {
+				if (destroy_dirty_buffers || !buffer_dirty(bh)) {
+					remove_inode_queue(bh);
+				}
+			} else if (!bdev->bd_openers)
+				printk("invalidate: busy buffer\n");
+
+			write_unlock(&hash_table_lock);
+			if (slept)
+				goto out;
+		}
+	}
+out:
+	spin_unlock(&lru_list_lock);
+	if (slept)
+		goto retry;
+
+	/* Get rid of the page cache */
+	invalidate_inode_pages(bdev->bd_inode);
+}
+
+void __invalidate_buffers(kdev_t dev, int destroy_dirty_buffers)
+{
+	struct block_device *bdev = bdget(dev);
+	if (bdev) {
+		invalidate_bdev(bdev, destroy_dirty_buffers);
+		bdput(bdev);
+	}
+}
+
+static void free_more_memory(void)
+{
+	balance_dirty();
+	wakeup_bdflush();
+	try_to_free_pages(GFP_NOIO);
+	run_task_queue(&tq_disk);
+	yield();
+}
+
+void init_buffer(struct buffer_head *bh, bh_end_io_t *handler, void *private)
+{
+	bh->b_list = BUF_CLEAN;
+	bh->b_end_io = handler;
+	bh->b_private = private;
+}
+
+void end_buffer_io_async(struct buffer_head * bh, int uptodate)
+{
+	static spinlock_t page_uptodate_lock = SPIN_LOCK_UNLOCKED;
+	unsigned long flags;
+	struct buffer_head *tmp;
+	struct page *page;
+	int fullup = 1;
+
+	mark_buffer_uptodate(bh, uptodate);
+
+	/* This is a temporary buffer used for page I/O. */
+	page = bh->b_page;
+
+	if (!uptodate)
+		SetPageError(page);
+
+	/*
+	 * Be _very_ careful from here on. Bad things can happen if
+	 * two buffer heads end IO at almost the same time and both
+	 * decide that the page is now completely done.
+	 *
+	 * Async buffer_heads are here only as labels for IO, and get
+	 * thrown away once the IO for this page is complete.  IO is
+	 * deemed complete once all buffers have been visited
+	 * (b_count==0) and are now unlocked. We must make sure that
+	 * only the _last_ buffer that decrements its count is the one
+	 * that unlock the page..
+	 */
+	spin_lock_irqsave(&page_uptodate_lock, flags);
+	mark_buffer_async(bh, 0);
+	unlock_buffer(bh);
+	tmp = bh->b_this_page;
+	while (tmp != bh) {
+		if (buffer_locked(tmp)) {
+			if (buffer_async(tmp))
+				goto still_busy;
+		} else if (!buffer_uptodate(tmp))
+			fullup = 0;
+		tmp = tmp->b_this_page;
+	}
+
+	/* OK, the async IO on this page is complete. */
+	spin_unlock_irqrestore(&page_uptodate_lock, flags);
+
+	/*
+	 * If none of the buffers had errors and all were uptodate
+	 * then we can set the page uptodate:
+	 */
+	if (fullup && !PageError(page))
+		SetPageUptodate(page);
+
+	UnlockPage(page);
+
+	return;
+
+still_busy:
+	spin_unlock_irqrestore(&page_uptodate_lock, flags);
+	return;
+}
+
+inline void set_buffer_async_io(struct buffer_head *bh)
+{
+	bh->b_end_io = end_buffer_io_async;
+	mark_buffer_async(bh, 1);
+}
+
+/*
+ * Synchronise all the inode's dirty buffers to the disk.
+ *
+ * We have conflicting pressures: we want to make sure that all
+ * initially dirty buffers get waited on, but that any subsequently
+ * dirtied buffers don't.  After all, we don't want fsync to last
+ * forever if somebody is actively writing to the file.
+ *
+ * Do this in two main stages: first we copy dirty buffers to a
+ * temporary inode list, queueing the writes as we go.  Then we clean
+ * up, waiting for those writes to complete.
+ * 
+ * During this second stage, any subsequent updates to the file may end
+ * up refiling the buffer on the original inode's dirty list again, so
+ * there is a chance we will end up with a buffer queued for write but
+ * not yet completed on that list.  So, as a final cleanup we go through
+ * the osync code to catch these locked, dirty buffers without requeuing
+ * any newly dirty buffers for write.
+ */
+int fsync_buffers_list(struct list_head *list)
+{
+	struct buffer_head *bh;
+	struct list_head tmp;
+	int err = 0, err2;
+	
+	INIT_LIST_HEAD(&tmp);
+	
+	spin_lock(&lru_list_lock);
+
+	while (!list_empty(list)) {
+		bh = BH_ENTRY(list->next);
+		list_del(&bh->b_inode_buffers);
+		if (!buffer_dirty(bh) && !buffer_locked(bh))
+			clear_buffer_attached(bh);
+		else {
+			set_buffer_attached(bh);
+			list_add(&bh->b_inode_buffers, &tmp);
+			if (buffer_dirty(bh)) {
+				get_bh(bh);
+				spin_unlock(&lru_list_lock);
+			/*
+			 * Wait I/O completion before submitting
+			 * the buffer, to be sure the write will
+			 * be effective on the latest data in
+			 * the buffer. (otherwise - if there's old
+			 * I/O in flight - write_buffer would become
+			 * a noop)
+			 */
+				wait_on_buffer(bh);
+				write_buffer(bh);
+				brelse(bh);
+				spin_lock(&lru_list_lock);
+			}
+		}
+	}
+
+	while (!list_empty(&tmp)) {
+		bh = BH_ENTRY(tmp.prev);
+		remove_inode_queue(bh);
+		get_bh(bh);
+		spin_unlock(&lru_list_lock);
+		wait_on_buffer(bh);
+		if (!buffer_uptodate(bh))
+			err = -EIO;
+		brelse(bh);
+		spin_lock(&lru_list_lock);
+	}
+	
+	spin_unlock(&lru_list_lock);
+	err2 = osync_buffers_list(list);
+
+	if (err)
+		return err;
+	else
+		return err2;
+}
+
+/*
+ * osync is designed to support O_SYNC io.  It waits synchronously for
+ * all already-submitted IO to complete, but does not queue any new
+ * writes to the disk.
+ *
+ * To do O_SYNC writes, just queue the buffer writes with ll_rw_block as
+ * you dirty the buffers, and then use osync_buffers_list to wait for
+ * completion.  Any other dirty buffers which are not yet queued for
+ * write will not be flushed to disk by the osync.
+ */
+static int osync_buffers_list(struct list_head *list)
+{
+	struct buffer_head *bh;
+	struct list_head *p;
+	int err = 0;
+
+	spin_lock(&lru_list_lock);
+	
+ repeat:
+	list_for_each_prev(p, list) {
+		bh = BH_ENTRY(p);
+		if (buffer_locked(bh)) {
+			get_bh(bh);
+			spin_unlock(&lru_list_lock);
+			wait_on_buffer(bh);
+			if (!buffer_uptodate(bh))
+				err = -EIO;
+			brelse(bh);
+			spin_lock(&lru_list_lock);
+			goto repeat;
+		}
+	}
+
+	spin_unlock(&lru_list_lock);
+	return err;
+}
+
+/*
+ * Invalidate any and all dirty buffers on a given inode.  We are
+ * probably unmounting the fs, but that doesn't mean we have already
+ * done a sync().  Just drop the buffers from the inode list.
+ */
+void invalidate_inode_buffers(struct inode *inode)
+{
+	struct list_head * entry;
+	
+	spin_lock(&lru_list_lock);
+	while ((entry = inode->i_dirty_buffers.next) != &inode->i_dirty_buffers)
+		remove_inode_queue(BH_ENTRY(entry));
+	while ((entry = inode->i_dirty_data_buffers.next) != &inode->i_dirty_data_buffers)
+		remove_inode_queue(BH_ENTRY(entry));
+	spin_unlock(&lru_list_lock);
+}
+
+
+/*
+ * Ok, this is getblk, and it isn't very clear, again to hinder
+ * race-conditions. Most of the code is seldom used, (ie repeating),
+ * so it should be much more efficient than it looks.
+ *
+ * The algorithm is changed: hopefully better, and an elusive bug removed.
+ *
+ * 14.02.92: changed it to sync dirty buffers a bit: better performance
+ * when the filesystem starts to get full of dirty blocks (I hope).
+ */
+struct buffer_head * getblk(kdev_t dev, int block, int size)
+{
+	for (;;) {
+		struct buffer_head * bh;
+
+		bh = get_hash_table(dev, block, size);
+		if (bh) {
+			touch_buffer(bh);
+			return bh;
+		}
+
+		if (!grow_buffers(dev, block, size))
+			free_more_memory();
+	}
+}
+
+/* -1 -> no need to flush
+    0 -> async flush
+    1 -> sync flush (wait for I/O completion) */
+static int balance_dirty_state(void)
+{
+	unsigned long dirty, tot, hard_dirty_limit, soft_dirty_limit;
+
+	dirty = size_buffers_type[BUF_DIRTY] >> PAGE_SHIFT;
+	tot = nr_free_buffer_pages();
+
+	dirty *= 100;
+	soft_dirty_limit = tot * bdf_prm.b_un.nfract;
+	hard_dirty_limit = tot * bdf_prm.b_un.nfract_sync;
+
+	/* First, check for the "real" dirty limit. */
+	if (dirty > soft_dirty_limit) {
+		if (dirty > hard_dirty_limit && !(current->flags & PF_NOIO))
+			return 1;
+		return 0;
+	}
+
+	return -1;
+}
+
+static int bdflush_stop(void)
+{
+	unsigned long dirty, tot, dirty_limit;
+
+	dirty = size_buffers_type[BUF_DIRTY] >> PAGE_SHIFT;
+	tot = nr_free_buffer_pages();
+
+	dirty *= 100;
+	dirty_limit = tot * bdf_prm.b_un.nfract_stop_bdflush;
+
+	if (!laptop_mode && dirty > dirty_limit)
+		return 0;
+	return 1;
+}
+
+/*
+ * if a new dirty buffer is created we need to balance bdflush.
+ *
+ * in the future we might want to make bdflush aware of different
+ * pressures on different devices - thus the (currently unused)
+ * 'dev' parameter.
+ */
+void balance_dirty(void)
+{
+	int state = balance_dirty_state();
+
+	if (state < 0)
+		return;
+
+	wakeup_bdflush();
+
+	/*
+	 * And if we're _really_ out of balance, wait for
+	 * some of the dirty/locked buffers ourselves.
+	 * This will throttle heavy writers.
+	 */
+	if (state > 0) {
+		spin_lock(&lru_list_lock);
+		write_some_buffers(NODEV);
+	}
+}
+EXPORT_SYMBOL(balance_dirty);
+
+inline void fastcall __mark_dirty(struct buffer_head *bh)
+{
+	bh->b_flushtime = jiffies + bdf_prm.b_un.age_buffer;
+	refile_buffer(bh);
+}
+
+/* atomic version, the user must call balance_dirty() by hand
+   as soon as it become possible to block */
+void fastcall __mark_buffer_dirty(struct buffer_head *bh)
+{
+	if (!atomic_set_buffer_dirty(bh))
+		__mark_dirty(bh);
+}
+
+void fastcall mark_buffer_dirty(struct buffer_head *bh)
+{
+	if (!atomic_set_buffer_dirty(bh)) {
+		if (block_dump)
+			printk("%s: dirtied buffer\n", current->comm);
+		__mark_dirty(bh);
+		balance_dirty();
+	}
+}
+
+void set_buffer_flushtime(struct buffer_head *bh)
+{
+	bh->b_flushtime = jiffies + bdf_prm.b_un.age_buffer;
+}
+EXPORT_SYMBOL(set_buffer_flushtime);
+
+int get_buffer_flushtime(void)
+{
+	return bdf_prm.b_un.interval;
+}
+EXPORT_SYMBOL(get_buffer_flushtime);
+
+/*
+ * A buffer may need to be moved from one buffer list to another
+ * (e.g. in case it is not shared any more). Handle this.
+ */
+static void __refile_buffer(struct buffer_head *bh)
+{
+	int dispose = BUF_CLEAN;
+	if (buffer_locked(bh))
+		dispose = BUF_LOCKED;
+	if (buffer_dirty(bh))
+		dispose = BUF_DIRTY;
+	if (dispose != bh->b_list) {
+		__remove_from_lru_list(bh);
+		bh->b_list = dispose;
+		if (dispose == BUF_CLEAN)
+			remove_inode_queue(bh);
+		__insert_into_lru_list(bh, dispose);
+	}
+}
+
+void refile_buffer(struct buffer_head *bh)
+{
+	spin_lock(&lru_list_lock);
+	__refile_buffer(bh);
+	spin_unlock(&lru_list_lock);
+}
+
+/*
+ * Release a buffer head
+ */
+void __brelse(struct buffer_head * buf)
+{
+	if (atomic_read(&buf->b_count)) {
+		put_bh(buf);
+		return;
+	}
+	printk(KERN_ERR "VFS: brelse: Trying to free free buffer\n");
+}
+
+/*
+ * bforget() is like brelse(), except it discards any
+ * potentially dirty data.
+ */
+void __bforget(struct buffer_head * buf)
+{
+	mark_buffer_clean(buf);
+	__brelse(buf);
+}
+
+/**
+ *	bread() - reads a specified block and returns the bh
+ *	@block: number of block
+ *	@size: size (in bytes) to read
+ * 
+ *	Reads a specified block, and returns buffer head that
+ *	contains it. It returns NULL if the block was unreadable.
+ */
+struct buffer_head * bread(kdev_t dev, int block, int size)
+{
+	struct buffer_head * bh;
+
+	bh = getblk(dev, block, size);
+	if (buffer_uptodate(bh))
+		return bh;
+	set_bit(BH_Sync, &bh->b_state);
+	ll_rw_block(READ, 1, &bh);
+	wait_on_buffer(bh);
+	if (buffer_uptodate(bh))
+		return bh;
+	brelse(bh);
+	return NULL;
+}
+
+/*
+ * Note: the caller should wake up the buffer_wait list if needed.
+ */
+static void __put_unused_buffer_head(struct buffer_head * bh)
+{
+	if (unlikely(buffer_attached(bh)))
+		BUG();
+	if (nr_unused_buffer_heads >= MAX_UNUSED_BUFFERS) {
+		kmem_cache_free(bh_cachep, bh);
+	} else {
+		bh->b_dev = B_FREE;
+		bh->b_blocknr = -1;
+		bh->b_this_page = NULL;
+
+		nr_unused_buffer_heads++;
+		bh->b_next_free = unused_list;
+		unused_list = bh;
+	}
+}
+
+void put_unused_buffer_head(struct buffer_head *bh)
+{
+	spin_lock(&unused_list_lock);
+	__put_unused_buffer_head(bh);
+	spin_unlock(&unused_list_lock);
+}
+EXPORT_SYMBOL(put_unused_buffer_head);
+
+/*
+ * Reserve NR_RESERVED buffer heads for async IO requests to avoid
+ * no-buffer-head deadlock.  Return NULL on failure; waiting for
+ * buffer heads is now handled in create_buffers().
+ */ 
+struct buffer_head * get_unused_buffer_head(int async)
+{
+	struct buffer_head * bh;
+
+	spin_lock(&unused_list_lock);
+	if (nr_unused_buffer_heads > NR_RESERVED) {
+		bh = unused_list;
+		unused_list = bh->b_next_free;
+		nr_unused_buffer_heads--;
+		spin_unlock(&unused_list_lock);
+		return bh;
+	}
+	spin_unlock(&unused_list_lock);
+
+	/* This is critical.  We can't call out to the FS
+	 * to get more buffer heads, because the FS may need
+	 * more buffer-heads itself.  Thus SLAB_NOFS.
+	 */
+	if((bh = kmem_cache_alloc(bh_cachep, SLAB_NOFS)) != NULL) {
+		bh->b_blocknr = -1;
+		bh->b_this_page = NULL;
+		return bh;
+	}
+
+	/*
+	 * If we need an async buffer, use the reserved buffer heads.
+	 * Non-PF_MEMALLOC tasks can just loop in create_buffers().
+	 */
+	if (async && (current->flags & PF_MEMALLOC)) {
+		spin_lock(&unused_list_lock);
+		if (unused_list) {
+			bh = unused_list;
+			unused_list = bh->b_next_free;
+			nr_unused_buffer_heads--;
+			spin_unlock(&unused_list_lock);
+			return bh;
+		}
+		spin_unlock(&unused_list_lock);
+	}
+
+	return NULL;
+}
+EXPORT_SYMBOL(get_unused_buffer_head);
+
+void set_bh_page (struct buffer_head *bh, struct page *page, unsigned long offset)
+{
+	if (offset >= PAGE_SIZE)
+		BUG();
+
+	if (PageHighMem(page)) {
+		bh->b_data = (char *)offset;
+	} else {
+		bh->b_data = page_address(page) + offset;
+	}
+	bh->b_page = page;
+}
+EXPORT_SYMBOL(set_bh_page);
+
+/*
+ * Create the appropriate buffers when given a page for data area and
+ * the size of each buffer.. Use the bh->b_this_page linked list to
+ * follow the buffers created.  Return NULL if unable to create more
+ * buffers.
+ * The async flag is used to differentiate async IO (paging, swapping)
+ * from ordinary buffer allocations, and only async requests are allowed
+ * to sleep waiting for buffer heads. 
+ */
+static struct buffer_head * create_buffers(struct page * page, unsigned long size, int async)
+{
+	struct buffer_head *bh, *head;
+	long offset;
+
+try_again:
+	head = NULL;
+	offset = PAGE_SIZE;
+	while ((offset -= size) >= 0) {
+		bh = get_unused_buffer_head(async);
+		if (!bh)
+			goto no_grow;
+
+		bh->b_dev = NODEV;
+		bh->b_this_page = head;
+		head = bh;
+
+		bh->b_state = 0;
+		bh->b_next_free = NULL;
+		bh->b_pprev = NULL;
+		atomic_set(&bh->b_count, 0);
+		bh->b_size = size;
+
+		set_bh_page(bh, page, offset);
+
+		bh->b_list = BUF_CLEAN;
+		bh->b_end_io = NULL;
+	}
+	return head;
+/*
+ * In case anything failed, we just free everything we got.
+ */
+no_grow:
+	if (head) {
+		spin_lock(&unused_list_lock);
+		do {
+			bh = head;
+			head = head->b_this_page;
+			__put_unused_buffer_head(bh);
+		} while (head);
+		spin_unlock(&unused_list_lock);
+
+		/* Wake up any waiters ... */
+		wake_up(&buffer_wait);
+	}
+
+	/*
+	 * Return failure for non-async IO requests.  Async IO requests
+	 * are not allowed to fail, so we have to wait until buffer heads
+	 * become available.  But we don't want tasks sleeping with 
+	 * partially complete buffers, so all were released above.
+	 */
+	if (!async)
+		return NULL;
+
+	/* We're _really_ low on memory. Now we just
+	 * wait for old buffer heads to become free due to
+	 * finishing IO.  Since this is an async request and
+	 * the reserve list is empty, we're sure there are 
+	 * async buffer heads in use.
+	 */
+	run_task_queue(&tq_disk);
+
+	free_more_memory();
+	goto try_again;
+}
+
+/*
+ * Called when truncating a buffer on a page completely.
+ */
+static void discard_buffer(struct buffer_head * bh)
+{
+	if (buffer_mapped(bh) || buffer_delay(bh)) {
+		mark_buffer_clean(bh);
+		lock_buffer(bh);
+		clear_bit(BH_Uptodate, &bh->b_state);
+		clear_bit(BH_Mapped, &bh->b_state);
+		clear_bit(BH_Req, &bh->b_state);
+		clear_bit(BH_New, &bh->b_state);
+		clear_bit(BH_Delay, &bh->b_state);
+		remove_from_queues(bh);
+		unlock_buffer(bh);
+	}
+}
+
+/**
+ * try_to_release_page - release old fs-specific metadata on a page
+ *
+ */
+
+int try_to_release_page(struct page * page, int gfp_mask)
+{
+	if (!PageLocked(page))
+		BUG();
+	
+	if (!page->mapping)
+		goto try_to_free;
+	if (!page->mapping->a_ops->releasepage)
+		goto try_to_free;
+	if (page->mapping->a_ops->releasepage(page, gfp_mask))
+		goto try_to_free;
+	/*
+	 * We couldn't release buffer metadata; don't even bother trying
+	 * to release buffers.
+	 */
+	return 0;
+try_to_free:	
+	return try_to_free_buffers(page, gfp_mask);
+}
+
+/*
+ * We don't have to release all buffers here, but
+ * we have to be sure that no dirty buffer is left
+ * and no IO is going on (no buffer is locked), because
+ * we have truncated the file and are going to free the
+ * blocks on-disk..
+ */
+int discard_bh_page(struct page *page, unsigned long offset, int drop_pagecache)
+{
+	struct buffer_head *head, *bh, *next;
+	unsigned int curr_off = 0;
+
+	if (!PageLocked(page))
+		BUG();
+	if (!page->buffers)
+		return 1;
+
+	head = page->buffers;
+	bh = head;
+	do {
+		unsigned int next_off = curr_off + bh->b_size;
+		next = bh->b_this_page;
+
+		/*
+		 * is this block fully flushed?
+		 */
+		if (offset <= curr_off)
+			discard_buffer(bh);
+		curr_off = next_off;
+		bh = next;
+	} while (bh != head);
+
+	/*
+	 * subtle. We release buffer-heads only if this is
+	 * the 'final' flushpage. We have invalidated the get_block
+	 * cached value unconditionally, so real IO is not
+	 * possible anymore.
+	 *
+	 * If the free doesn't work out, the buffers can be
+	 * left around - they just turn into anonymous buffers
+	 * instead.
+	 */
+	if (!offset) {
+		if (!try_to_release_page(page, 0))
+			return 0;
+	}
+
+	return 1;
+}
+
+void create_empty_buffers(struct page *page, kdev_t dev, unsigned long blocksize)
+{
+	struct buffer_head *bh, *head, *tail;
+
+	/* FIXME: create_buffers should fail if there's no enough memory */
+	head = create_buffers(page, blocksize, 1);
+	if (page->buffers)
+		BUG();
+
+	bh = head;
+	do {
+		bh->b_dev = dev;
+		bh->b_blocknr = 0;
+		bh->b_end_io = NULL;
+		tail = bh;
+		bh = bh->b_this_page;
+	} while (bh);
+	tail->b_this_page = head;
+	page->buffers = head;
+	page_cache_get(page);
+}
+EXPORT_SYMBOL(create_empty_buffers);
+
+/*
+ * We are taking a block for data and we don't want any output from any
+ * buffer-cache aliases starting from return from that function and
+ * until the moment when something will explicitly mark the buffer
+ * dirty (hopefully that will not happen until we will free that block ;-)
+ * We don't even need to mark it not-uptodate - nobody can expect
+ * anything from a newly allocated buffer anyway. We used to used
+ * unmap_buffer() for such invalidation, but that was wrong. We definitely
+ * don't want to mark the alias unmapped, for example - it would confuse
+ * anyone who might pick it with bread() afterwards...
+ */
+
+static void unmap_underlying_metadata(struct buffer_head * bh)
+{
+	struct buffer_head *old_bh;
+
+	old_bh = get_hash_table(bh->b_dev, bh->b_blocknr, bh->b_size);
+	if (old_bh) {
+		mark_buffer_clean(old_bh);
+		wait_on_buffer(old_bh);
+		clear_bit(BH_Req, &old_bh->b_state);
+		__brelse(old_bh);
+	}
+}
+
+/*
+ * NOTE! All mapped/uptodate combinations are valid:
+ *
+ *	Mapped	Uptodate	Meaning
+ *
+ *	No	No		"unknown" - must do get_block()
+ *	No	Yes		"hole" - zero-filled
+ *	Yes	No		"allocated" - allocated on disk, not read in
+ *	Yes	Yes		"valid" - allocated and up-to-date in memory.
+ *
+ * "Dirty" is valid only with the last case (mapped+uptodate).
+ */
+
+/*
+ * block_write_full_page() is SMP threaded - the kernel lock is not held.
+ */
+static int __block_write_full_page(struct inode *inode, struct page *page, get_block_t *get_block)
+{
+	int err, i;
+	unsigned long block;
+	struct buffer_head *bh, *head;
+	int need_unlock;
+
+	if (!PageLocked(page))
+		BUG();
+
+	if (!page->buffers)
+		create_empty_buffers(page, inode->i_dev, 1 << inode->i_blkbits);
+	head = page->buffers;
+
+	block = page->index << (PAGE_CACHE_SHIFT - inode->i_blkbits);
+
+	bh = head;
+	i = 0;
+
+	/* Stage 1: make sure we have all the buffers mapped! */
+	do {
+		/*
+		 * If the buffer isn't up-to-date, we can't be sure
+		 * that the buffer has been initialized with the proper
+		 * block number information etc..
+		 *
+		 * Leave it to the low-level FS to make all those
+		 * decisions (block #0 may actually be a valid block)
+		 */
+		if (!buffer_mapped(bh)) {
+			err = get_block(inode, block, bh, 1);
+			if (err)
+				goto out;
+			if (buffer_new(bh))
+				unmap_underlying_metadata(bh);
+		}
+		bh = bh->b_this_page;
+		block++;
+	} while (bh != head);
+
+	/* Stage 2: lock the buffers, mark them clean */
+	do {
+		lock_buffer(bh);
+		set_buffer_async_io(bh);
+		set_bit(BH_Uptodate, &bh->b_state);
+		clear_bit(BH_Dirty, &bh->b_state);
+		bh = bh->b_this_page;
+	} while (bh != head);
+
+	/* Stage 3: submit the IO */
+	do {
+		struct buffer_head *next = bh->b_this_page;
+		submit_bh(WRITE, bh);
+		bh = next;
+	} while (bh != head);
+
+	/* Done - end_buffer_io_async will unlock */
+	SetPageUptodate(page);
+
+	wakeup_page_waiters(page);
+
+	return 0;
+
+out:
+	/*
+	 * ENOSPC, or some other error.  We may already have added some
+	 * blocks to the file, so we need to write these out to avoid
+	 * exposing stale data.
+	 */
+	ClearPageUptodate(page);
+	bh = head;
+	need_unlock = 1;
+	/* Recovery: lock and submit the mapped buffers */
+	do {
+		if (buffer_mapped(bh)) {
+			lock_buffer(bh);
+			set_buffer_async_io(bh);
+			need_unlock = 0;
+		}
+		bh = bh->b_this_page;
+	} while (bh != head);
+	do {
+		struct buffer_head *next = bh->b_this_page;
+		if (buffer_mapped(bh)) {
+			set_bit(BH_Uptodate, &bh->b_state);
+			clear_bit(BH_Dirty, &bh->b_state);
+			submit_bh(WRITE, bh);
+		}
+		bh = next;
+	} while (bh != head);
+	if (need_unlock)
+		UnlockPage(page);
+	wakeup_page_waiters(page);
+	return err;
+}
+
+static int __block_prepare_write(struct inode *inode, struct page *page,
+		unsigned from, unsigned to, get_block_t *get_block)
+{
+	unsigned block_start, block_end;
+	unsigned long block;
+	int err = 0;
+	unsigned blocksize, bbits;
+	struct buffer_head *bh, *head, *wait[2], **wait_bh=wait;
+	char *kaddr = kmap(page);
+
+	blocksize = 1 << inode->i_blkbits;
+	if (!page->buffers)
+		create_empty_buffers(page, inode->i_dev, blocksize);
+	head = page->buffers;
+
+	bbits = inode->i_blkbits;
+	block = page->index << (PAGE_CACHE_SHIFT - bbits);
+
+	for(bh = head, block_start = 0; bh != head || !block_start;
+	    block++, block_start=block_end, bh = bh->b_this_page) {
+		if (!bh)
+			BUG();
+		block_end = block_start+blocksize;
+		if (block_end <= from)
+			continue;
+		if (block_start >= to)
+			break;
+		clear_bit(BH_New, &bh->b_state);
+		if (!buffer_mapped(bh)) {
+			err = get_block(inode, block, bh, 1);
+			if (err)
+				goto out;
+			if (buffer_new(bh)) {
+				unmap_underlying_metadata(bh);
+				if (Page_Uptodate(page)) {
+					set_bit(BH_Uptodate, &bh->b_state);
+					continue;
+				}
+				if (block_end > to)
+					memset(kaddr+to, 0, block_end-to);
+				if (block_start < from)
+					memset(kaddr+block_start, 0, from-block_start);
+				if (block_end > to || block_start < from)
+					flush_dcache_page(page);
+				continue;
+			}
+		}
+		if (Page_Uptodate(page)) {
+			set_bit(BH_Uptodate, &bh->b_state);
+			continue; 
+		}
+		if (!buffer_uptodate(bh) && !buffer_delay(bh) &&
+		     (block_start < from || block_end > to)) {
+			ll_rw_block(READ, 1, &bh);
+			*wait_bh++=bh;
+		}
+	}
+	/*
+	 * If we issued read requests - let them complete.
+	 */
+	while(wait_bh > wait) {
+		wait_on_buffer(*--wait_bh);
+		if (!buffer_uptodate(*wait_bh))
+			return -EIO;
+	}
+	return 0;
+out:
+	/*
+	 * Zero out any newly allocated blocks to avoid exposing stale
+	 * data.  If BH_New is set, we know that the block was newly
+	 * allocated in the above loop.
+	 *
+	 * Details the buffer can be new and uptodate because:
+	 * 1) hole in uptodate page, get_block(create) allocate the block,
+	 *    so the buffer is new and additionally we also mark it uptodate
+	 * 2) The buffer is not mapped and uptodate due a previous partial read.
+	 *
+	 * We can always ignore uptodate buffers here, if you mark a buffer
+	 * uptodate you must make sure it contains the right data first.
+	 *
+	 * We must stop the "undo/clear" fixup pass not at the caller "to"
+	 * but at the last block that we successfully arrived in the main loop.
+	 */
+	bh = head;
+	to = block_start; /* stop at the last successfully handled block */
+	block_start = 0;
+	do {
+		block_end = block_start+blocksize;
+		if (block_end <= from)
+			goto next_bh;
+		if (block_start >= to)
+			break;
+		if (buffer_new(bh) && !buffer_uptodate(bh)) {
+			memset(kaddr+block_start, 0, bh->b_size);
+			flush_dcache_page(page);
+			set_bit(BH_Uptodate, &bh->b_state);
+			mark_buffer_dirty(bh);
+		}
+next_bh:
+		block_start = block_end;
+		bh = bh->b_this_page;
+	} while (bh != head);
+	return err;
+}
+
+static int __block_commit_write(struct inode *inode, struct page *page,
+		unsigned from, unsigned to)
+{
+	unsigned block_start, block_end;
+	int partial = 0, need_balance_dirty = 0;
+	unsigned blocksize;
+	struct buffer_head *bh, *head;
+
+	blocksize = 1 << inode->i_blkbits;
+
+	for(bh = head = page->buffers, block_start = 0;
+	    bh != head || !block_start;
+	    block_start=block_end, bh = bh->b_this_page) {
+		block_end = block_start + blocksize;
+		if (block_end <= from || block_start >= to) {
+			if (!buffer_uptodate(bh))
+				partial = 1;
+		} else {
+			set_bit(BH_Uptodate, &bh->b_state);
+			if (!atomic_set_buffer_dirty(bh)) {
+				__mark_dirty(bh);
+				buffer_insert_inode_data_queue(bh, inode);
+				need_balance_dirty = 1;
+			}
+		}
+	}
+
+	if (need_balance_dirty)
+		balance_dirty();
+	/*
+	 * is this a partial write that happened to make all buffers
+	 * uptodate then we can optimize away a bogus readpage() for
+	 * the next read(). Here we 'discover' wether the page went
+	 * uptodate as a result of this (potentially partial) write.
+	 */
+	if (!partial)
+		SetPageUptodate(page);
+	return 0;
+}
+
+/*
+ * Generic "read page" function for block devices that have the normal
+ * get_block functionality. This is most of the block device filesystems.
+ * Reads the page asynchronously --- the unlock_buffer() and
+ * mark_buffer_uptodate() functions propagate buffer state into the
+ * page struct once IO has completed.
+ */
+int block_read_full_page(struct page *page, get_block_t *get_block)
+{
+	struct inode *inode = page->mapping->host;
+	unsigned long iblock, lblock;
+	struct buffer_head *bh, *head, *arr[MAX_BUF_PER_PAGE];
+	unsigned int blocksize, blocks;
+	int nr, i;
+
+	if (!PageLocked(page))
+		PAGE_BUG(page);
+	blocksize = 1 << inode->i_blkbits;
+	if (!page->buffers)
+		create_empty_buffers(page, inode->i_dev, blocksize);
+	head = page->buffers;
+
+	blocks = PAGE_CACHE_SIZE >> inode->i_blkbits;
+	iblock = page->index << (PAGE_CACHE_SHIFT - inode->i_blkbits);
+	lblock = (inode->i_size+blocksize-1) >> inode->i_blkbits;
+	bh = head;
+	nr = 0;
+	i = 0;
+
+	do {
+		if (buffer_uptodate(bh))
+			continue;
+
+		if (!buffer_mapped(bh)) {
+			if (iblock < lblock) {
+				if (get_block(inode, iblock, bh, 0))
+					SetPageError(page);
+			}
+			if (!buffer_mapped(bh)) {
+				memset(kmap(page) + i*blocksize, 0, blocksize);
+				flush_dcache_page(page);
+				kunmap(page);
+				set_bit(BH_Uptodate, &bh->b_state);
+				continue;
+			}
+			/* get_block() might have updated the buffer synchronously */
+			if (buffer_uptodate(bh))
+				continue;
+		}
+
+		arr[nr] = bh;
+		nr++;
+	} while (i++, iblock++, (bh = bh->b_this_page) != head);
+
+	if (!nr) {
+		/*
+		 * All buffers are uptodate - we can set the page uptodate
+		 * as well. But not if get_block() returned an error.
+		 */
+		if (!PageError(page))
+			SetPageUptodate(page);
+		UnlockPage(page);
+		return 0;
+	}
+
+	/* Stage two: lock the buffers */
+	for (i = 0; i < nr; i++) {
+		struct buffer_head * bh = arr[i];
+		lock_buffer(bh);
+		set_buffer_async_io(bh);
+	}
+
+	/* Stage 3: start the IO */
+	for (i = 0; i < nr; i++) {
+		struct buffer_head * bh = arr[i];
+		if (buffer_uptodate(bh))
+			end_buffer_io_async(bh, 1);
+		else
+			submit_bh(READ, bh);
+	}
+
+	wakeup_page_waiters(page);
+	
+	return 0;
+}
+
+/* utility function for filesystems that need to do work on expanding
+ * truncates.  Uses prepare/commit_write to allow the filesystem to
+ * deal with the hole.  
+ */
+int generic_cont_expand(struct inode *inode, loff_t size)
+{
+	struct address_space *mapping = inode->i_mapping;
+	struct page *page;
+	unsigned long index, offset, limit;
+	int err;
+
+	err = -EFBIG;
+        limit = current->rlim[RLIMIT_FSIZE].rlim_cur;
+	if (limit != RLIM_INFINITY && size > (loff_t)limit) {
+		send_sig(SIGXFSZ, current, 0);
+		goto out;
+	}
+	if (size > inode->i_sb->s_maxbytes)
+		goto out;
+
+	offset = (size & (PAGE_CACHE_SIZE-1)); /* Within page */
+
+	/* ugh.  in prepare/commit_write, if from==to==start of block, we 
+	** skip the prepare.  make sure we never send an offset for the start
+	** of a block
+	*/
+	if ((offset & (inode->i_sb->s_blocksize - 1)) == 0) {
+		offset++;
+	}
+	index = size >> PAGE_CACHE_SHIFT;
+	err = -ENOMEM;
+	page = grab_cache_page(mapping, index);
+	if (!page)
+		goto out;
+	err = mapping->a_ops->prepare_write(NULL, page, offset, offset);
+	if (!err) {
+		err = mapping->a_ops->commit_write(NULL, page, offset, offset);
+	}
+	UnlockPage(page);
+	page_cache_release(page);
+	if (err > 0)
+		err = 0;
+out:
+	return err;
+}
+
+/*
+ * For moronic filesystems that do not allow holes in file.
+ * We may have to extend the file.
+ */
+
+int cont_prepare_write(struct page *page, unsigned offset, unsigned to, get_block_t *get_block, unsigned long *bytes)
+{
+	struct address_space *mapping = page->mapping;
+	struct inode *inode = mapping->host;
+	struct page *new_page;
+	unsigned long pgpos;
+	long status;
+	unsigned zerofrom;
+	unsigned blocksize = 1 << inode->i_blkbits;
+	char *kaddr;
+
+	while(page->index > (pgpos = *bytes>>PAGE_CACHE_SHIFT)) {
+		status = -ENOMEM;
+		new_page = grab_cache_page(mapping, pgpos);
+		if (!new_page)
+			goto out;
+		/* we might sleep */
+		if (*bytes>>PAGE_CACHE_SHIFT != pgpos) {
+			UnlockPage(new_page);
+			page_cache_release(new_page);
+			continue;
+		}
+		zerofrom = *bytes & ~PAGE_CACHE_MASK;
+		if (zerofrom & (blocksize-1)) {
+			*bytes |= (blocksize-1);
+			(*bytes)++;
+		}
+		status = __block_prepare_write(inode, new_page, zerofrom,
+						PAGE_CACHE_SIZE, get_block);
+		if (status)
+			goto out_unmap;
+		kaddr = page_address(new_page);
+		memset(kaddr+zerofrom, 0, PAGE_CACHE_SIZE-zerofrom);
+		flush_dcache_page(new_page);
+		__block_commit_write(inode, new_page, zerofrom, PAGE_CACHE_SIZE);
+		kunmap(new_page);
+		UnlockPage(new_page);
+		page_cache_release(new_page);
+	}
+
+	if (page->index < pgpos) {
+		/* completely inside the area */
+		zerofrom = offset;
+	} else {
+		/* page covers the boundary, find the boundary offset */
+		zerofrom = *bytes & ~PAGE_CACHE_MASK;
+
+		/* if we will expand the thing last block will be filled */
+		if (to > zerofrom && (zerofrom & (blocksize-1))) {
+			*bytes |= (blocksize-1);
+			(*bytes)++;
+		}
+
+		/* starting below the boundary? Nothing to zero out */
+		if (offset <= zerofrom)
+			zerofrom = offset;
+	}
+	status = __block_prepare_write(inode, page, zerofrom, to, get_block);
+	if (status)
+		goto out1;
+	kaddr = page_address(page);
+	if (zerofrom < offset) {
+		memset(kaddr+zerofrom, 0, offset-zerofrom);
+		flush_dcache_page(page);
+		__block_commit_write(inode, page, zerofrom, offset);
+	}
+	return 0;
+out1:
+	ClearPageUptodate(page);
+	kunmap(page);
+	return status;
+
+out_unmap:
+	ClearPageUptodate(new_page);
+	kunmap(new_page);
+	UnlockPage(new_page);
+	page_cache_release(new_page);
+out:
+	return status;
+}
+
+int block_prepare_write(struct page *page, unsigned from, unsigned to,
+			get_block_t *get_block)
+{
+	struct inode *inode = page->mapping->host;
+	int err = __block_prepare_write(inode, page, from, to, get_block);
+	if (err) {
+		ClearPageUptodate(page);
+		kunmap(page);
+	}
+	return err;
+}
+
+int block_commit_write(struct page *page, unsigned from, unsigned to)
+{
+	struct inode *inode = page->mapping->host;
+	__block_commit_write(inode,page,from,to);
+	kunmap(page);
+	return 0;
+}
+
+int generic_commit_write(struct file *file, struct page *page,
+		unsigned from, unsigned to)
+{
+	struct inode *inode = page->mapping->host;
+	loff_t pos = ((loff_t)page->index << PAGE_CACHE_SHIFT) + to;
+	__block_commit_write(inode,page,from,to);
+	kunmap(page);
+	if (pos > inode->i_size) {
+		inode->i_size = pos;
+		mark_inode_dirty(inode);
+	}
+	return 0;
+}
+
+int block_truncate_page(struct address_space *mapping, loff_t from, get_block_t *get_block)
+{
+	unsigned long index = from >> PAGE_CACHE_SHIFT;
+	unsigned offset = from & (PAGE_CACHE_SIZE-1);
+	unsigned blocksize, iblock, length, pos;
+	struct inode *inode = mapping->host;
+	struct page *page;
+	struct buffer_head *bh;
+	int err;
+
+	blocksize = 1 << inode->i_blkbits;
+	length = offset & (blocksize - 1);
+
+	/* Block boundary? Nothing to do */
+	if (!length)
+		return 0;
+
+	length = blocksize - length;
+	iblock = index << (PAGE_CACHE_SHIFT - inode->i_blkbits);
+	
+	page = grab_cache_page(mapping, index);
+	err = -ENOMEM;
+	if (!page)
+		goto out;
+
+	if (!page->buffers)
+		create_empty_buffers(page, inode->i_dev, blocksize);
+
+	/* Find the buffer that contains "offset" */
+	bh = page->buffers;
+	pos = blocksize;
+	while (offset >= pos) {
+		bh = bh->b_this_page;
+		iblock++;
+		pos += blocksize;
+	}
+
+	err = 0;
+	if (!buffer_mapped(bh)) {
+		/* Hole? Nothing to do */
+		if (buffer_uptodate(bh))
+			goto unlock;
+		get_block(inode, iblock, bh, 0);
+		/* Still unmapped? Nothing to do */
+		if (!buffer_mapped(bh))
+			goto unlock;
+	}
+
+	/* Ok, it's mapped. Make sure it's up-to-date */
+	if (Page_Uptodate(page))
+		set_bit(BH_Uptodate, &bh->b_state);
+
+	if (!buffer_uptodate(bh) && !buffer_delay(bh)) {
+		err = -EIO;
+		ll_rw_block(READ, 1, &bh);
+		wait_on_buffer(bh);
+		/* Uhhuh. Read error. Complain and punt. */
+		if (!buffer_uptodate(bh))
+			goto unlock;
+	}
+
+	memset(kmap(page) + offset, 0, length);
+	flush_dcache_page(page);
+	kunmap(page);
+
+	if (!atomic_set_buffer_dirty(bh)) {
+		__mark_dirty(bh);
+		buffer_insert_inode_data_queue(bh, inode);
+		balance_dirty();
+	}
+
+	err = 0;
+
+unlock:
+	UnlockPage(page);
+	page_cache_release(page);
+out:
+	return err;
+}
+
+int block_write_full_page(struct page *page, get_block_t *get_block)
+{
+	struct inode *inode = page->mapping->host;
+	unsigned long end_index = inode->i_size >> PAGE_CACHE_SHIFT;
+	unsigned offset;
+	int err;
+
+	/* easy case */
+	if (page->index < end_index)
+		return __block_write_full_page(inode, page, get_block);
+
+	/* things got complicated... */
+	offset = inode->i_size & (PAGE_CACHE_SIZE-1);
+	/* OK, are we completely out? */
+	if (page->index >= end_index+1 || !offset) {
+		UnlockPage(page);
+		return -EIO;
+	}
+
+	/* Sigh... will have to work, then... */
+	err = __block_prepare_write(inode, page, 0, offset, get_block);
+	if (!err) {
+		memset(page_address(page) + offset, 0, PAGE_CACHE_SIZE - offset);
+		flush_dcache_page(page);
+		__block_commit_write(inode,page,0,offset);
+done:
+		kunmap(page);
+		UnlockPage(page);
+		return err;
+	}
+	ClearPageUptodate(page);
+	goto done;
+}
+
+/*
+ * Commence writeout of all the buffers against a page.  The
+ * page must be locked.   Returns zero on success or a negative
+ * errno.
+ */
+int writeout_one_page(struct page *page)
+{
+	struct buffer_head *bh, *head = page->buffers;
+
+	if (!PageLocked(page))
+		BUG();
+	bh = head;
+	do {
+		if (buffer_locked(bh) || !buffer_dirty(bh) || !buffer_uptodate(bh))
+			continue;
+
+		bh->b_flushtime = jiffies;
+		ll_rw_block(WRITE, 1, &bh);	
+	} while ((bh = bh->b_this_page) != head);
+	return 0;
+}
+EXPORT_SYMBOL(writeout_one_page);
+
+/*
+ * Wait for completion of I/O of all buffers against a page.  The page
+ * must be locked.  Returns zero on success or a negative errno.
+ */
+int waitfor_one_page(struct page *page)
+{
+	int error = 0;
+	struct buffer_head *bh, *head = page->buffers;
+
+	bh = head;
+	do {
+		wait_on_buffer(bh);
+		if (buffer_req(bh) && !buffer_uptodate(bh))
+			error = -EIO;
+	} while ((bh = bh->b_this_page) != head);
+	return error;
+}
+EXPORT_SYMBOL(waitfor_one_page);
+
+int generic_block_bmap(struct address_space *mapping, long block, get_block_t *get_block)
+{
+	struct buffer_head tmp;
+	struct inode *inode = mapping->host;
+	tmp.b_state = 0;
+	tmp.b_blocknr = 0;
+	get_block(inode, block, &tmp, 0);
+	return tmp.b_blocknr;
+}
+
+int generic_direct_IO(int rw, struct inode * inode, struct kiobuf * iobuf, unsigned long blocknr, int blocksize, get_block_t * get_block)
+{
+	int i, nr_blocks, retval;
+	unsigned long * blocks = iobuf->blocks;
+	int length;
+	int beyond_eof = 0;
+	
+	length = iobuf->length;
+	nr_blocks = length / blocksize;
+	/* build the blocklist */
+	for (i = 0; i < nr_blocks; i++, blocknr++) {
+		struct buffer_head bh;
+
+		bh.b_state = 0;
+		bh.b_dev = inode->i_dev;
+		bh.b_size = blocksize;
+		bh.b_page = NULL;
+
+		if (((loff_t) blocknr) * blocksize >= inode->i_size)
+			beyond_eof = 1;
+
+		/* Only allow get_block to create new blocks if we are safely
+		   beyond EOF.  O_DIRECT is unsafe inside sparse files. */
+		retval = get_block(inode, blocknr, &bh, 
+				   ((rw != READ) && beyond_eof));
+
+		if (retval) {
+			if (!i)
+				/* report error to userspace */
+				goto out;
+			else
+				/* do short I/O until 'i' */
+				break;
+		}
+
+		if (rw == READ) {
+			if (buffer_new(&bh))
+				BUG();
+			if (!buffer_mapped(&bh)) {
+				/* there was an hole in the filesystem */
+				blocks[i] = -1UL;
+				continue;
+			}
+		} else {
+			if (buffer_new(&bh))
+				unmap_underlying_metadata(&bh);
+			if (!buffer_mapped(&bh))
+				/* upper layers need to pass the error on or
+				 * fall back to buffered IO. */
+				return -ENOTBLK;
+		}
+		blocks[i] = bh.b_blocknr;
+	}
+
+	/* patch length to handle short I/O */
+	iobuf->length = i * blocksize;
+	if (!beyond_eof)
+		up(&inode->i_sem);
+	retval = brw_kiovec(rw, 1, &iobuf, inode->i_dev, iobuf->blocks, blocksize);
+	if (!beyond_eof)
+		down(&inode->i_sem);
+	/* restore orig length */
+	iobuf->length = length;
+ out:
+
+	return retval;
+}
+
+/*
+ * IO completion routine for a buffer_head being used for kiobuf IO: we
+ * can't dispatch the kiobuf callback until io_count reaches 0.  
+ */
+
+static void end_buffer_io_kiobuf(struct buffer_head *bh, int uptodate)
+{
+	struct kiobuf *kiobuf;
+	
+	mark_buffer_uptodate(bh, uptodate);
+
+	kiobuf = bh->b_private;
+	end_kio_request(kiobuf, uptodate);
+	unlock_buffer(bh);
+}
+
+/*
+ * For brw_kiovec: submit a set of buffer_head temporary IOs and wait
+ * for them to complete.  Clean up the buffer_heads afterwards.  
+ */
+
+static int wait_kio(int rw, int nr, struct buffer_head *bh[], int size)
+{
+	int iosize, err;
+	int i;
+	struct buffer_head *tmp;
+
+	iosize = 0;
+	err = 0;
+
+	for (i = nr; --i >= 0; ) {
+		iosize += size;
+		tmp = bh[i];
+		wait_on_buffer(tmp);
+		
+		if (!buffer_uptodate(tmp)) {
+			/* We are traversing bh'es in reverse order so
+                           clearing iosize on error calculates the
+                           amount of IO before the first error. */
+			iosize = 0;
+			err = -EIO;
+		}
+	}
+	
+	if (iosize)
+		return iosize;
+	return err;
+}
+
+/*
+ * Start I/O on a physical range of kernel memory, defined by a vector
+ * of kiobuf structs (much like a user-space iovec list).
+ *
+ * The kiobuf must already be locked for IO.  IO is submitted
+ * asynchronously: you need to check page->locked and page->uptodate.
+ *
+ * It is up to the caller to make sure that there are enough blocks
+ * passed in to completely map the iobufs to disk.
+ */
+
+int brw_kiovec(int rw, int nr, struct kiobuf *iovec[], 
+	       kdev_t dev, unsigned long b[], int size)
+{
+	int		err;
+	int		length;
+	int		transferred;
+	int		i;
+	int		bufind;
+	int		pageind;
+	int		bhind;
+	int		offset;
+	unsigned long	blocknr;
+	struct kiobuf *	iobuf = NULL;
+	struct page *	map;
+	struct buffer_head *tmp, **bhs = NULL;
+
+	if (!nr)
+		return 0;
+	
+	/* 
+	 * First, do some alignment and validity checks 
+	 */
+	for (i = 0; i < nr; i++) {
+		iobuf = iovec[i];
+		if ((iobuf->offset & (size-1)) ||
+		    (iobuf->length & (size-1)))
+			return -EINVAL;
+		if (!iobuf->nr_pages)
+			panic("brw_kiovec: iobuf not initialised");
+	}
+
+	/* 
+	 * OK to walk down the iovec doing page IO on each page we find. 
+	 */
+	bufind = bhind = transferred = err = 0;
+	for (i = 0; i < nr; i++) {
+		iobuf = iovec[i];
+		offset = iobuf->offset;
+		length = iobuf->length;
+		iobuf->errno = 0;
+		if (!bhs)
+			bhs = iobuf->bh;
+		
+		for (pageind = 0; pageind < iobuf->nr_pages; pageind++) {
+			map  = iobuf->maplist[pageind];
+			if (!map) {
+				err = -EFAULT;
+				goto finished;
+			}
+			
+			while (length > 0) {
+				blocknr = b[bufind++];
+				if (blocknr == -1UL) {
+					if (rw == READ) {
+						/* there was an hole in the filesystem */
+						memset(kmap(map) + offset, 0, size);
+						flush_dcache_page(map);
+						kunmap(map);
+
+						transferred += size;
+						goto skip_block;
+					} else
+						BUG();
+				}
+				tmp = bhs[bhind++];
+
+				tmp->b_size = size;
+				set_bh_page(tmp, map, offset);
+				tmp->b_this_page = tmp;
+
+				init_buffer(tmp, end_buffer_io_kiobuf, iobuf);
+				tmp->b_dev = dev;
+				tmp->b_blocknr = blocknr;
+				tmp->b_state = (1 << BH_Mapped) | (1 << BH_Lock) | (1 << BH_Req);
+
+				if (rw == WRITE) {
+					set_bit(BH_Uptodate, &tmp->b_state);
+					clear_bit(BH_Dirty, &tmp->b_state);
+				} else
+					set_bit(BH_Uptodate, &tmp->b_state);
+
+				atomic_inc(&iobuf->io_count);
+				submit_bh(rw, tmp);
+				/* 
+				 * Wait for IO if we have got too much 
+				 */
+				if (bhind >= KIO_MAX_SECTORS) {
+					kiobuf_wait_for_io(iobuf); /* wake-one */
+					err = wait_kio(rw, bhind, bhs, size);
+					if (err >= 0)
+						transferred += err;
+					else
+						goto finished;
+					bhind = 0;
+				}
+
+			skip_block:
+				length -= size;
+				offset += size;
+
+				if (offset >= PAGE_SIZE) {
+					offset = 0;
+					break;
+				}
+			} /* End of block loop */
+		} /* End of page loop */		
+	} /* End of iovec loop */
+
+	/* Is there any IO still left to submit? */
+	if (bhind) {
+		kiobuf_wait_for_io(iobuf); /* wake-one */
+		err = wait_kio(rw, bhind, bhs, size);
+		if (err >= 0)
+			transferred += err;
+		else
+			goto finished;
+	}
+
+ finished:
+	if (transferred)
+		return transferred;
+	return err;
+}
+
+/*
+ * Start I/O on a page.
+ * This function expects the page to be locked and may return
+ * before I/O is complete. You then have to check page->locked
+ * and page->uptodate.
+ *
+ * brw_page() is SMP-safe, although it's being called with the
+ * kernel lock held - but the code is ready.
+ *
+ * FIXME: we need a swapper_inode->get_block function to remove
+ *        some of the bmap kludges and interface ugliness here.
+ */
+int brw_page(int rw, struct page *page, kdev_t dev, int b[], int size)
+{
+	struct buffer_head *head, *bh;
+
+	if (!PageLocked(page))
+		panic("brw_page: page not locked for I/O");
+
+	if (!page->buffers)
+		create_empty_buffers(page, dev, size);
+	head = bh = page->buffers;
+
+	/* Stage 1: lock all the buffers */
+	do {
+		lock_buffer(bh);
+		bh->b_blocknr = *(b++);
+		set_bit(BH_Mapped, &bh->b_state);
+		set_buffer_async_io(bh);
+		bh = bh->b_this_page;
+	} while (bh != head);
+
+	/* Stage 2: start the IO */
+	do {
+		struct buffer_head *next = bh->b_this_page;
+		submit_bh(rw, bh);
+		bh = next;
+	} while (bh != head);
+	wakeup_page_waiters(page);
+	return 0;
+}
+
+int block_symlink(struct inode *inode, const char *symname, int len)
+{
+	struct address_space *mapping = inode->i_mapping;
+	struct page *page = grab_cache_page(mapping, 0);
+	int err = -ENOMEM;
+	char *kaddr;
+
+	if (!page)
+		goto fail;
+	err = mapping->a_ops->prepare_write(NULL, page, 0, len-1);
+	if (err)
+		goto fail_map;
+	kaddr = page_address(page);
+	memcpy(kaddr, symname, len-1);
+	mapping->a_ops->commit_write(NULL, page, 0, len-1);
+	/*
+	 * Notice that we are _not_ going to block here - end of page is
+	 * unmapped, so this will only try to map the rest of page, see
+	 * that it is unmapped (typically even will not look into inode -
+	 * ->i_size will be enough for everything) and zero it out.
+	 * OTOH it's obviously correct and should make the page up-to-date.
+	 */
+	err = mapping->a_ops->readpage(NULL, page);
+	wait_on_page(page);
+	page_cache_release(page);
+	if (err < 0)
+		goto fail;
+	mark_inode_dirty(inode);
+	return 0;
+fail_map:
+	UnlockPage(page);
+	page_cache_release(page);
+fail:
+	return err;
+}
+
+static inline void link_dev_buffers(struct page * page, struct buffer_head *head)
+{
+	struct buffer_head *bh, *tail;
+
+	bh = head;
+	do {
+		tail = bh;
+		bh = bh->b_this_page;
+	} while (bh);
+	tail->b_this_page = head;
+	page->buffers = head;
+	page_cache_get(page);
+}
+
+/*
+ * Create the page-cache page that contains the requested block
+ */
+static struct page * grow_dev_page(struct block_device *bdev, unsigned long index, int size)
+{
+	struct page * page;
+	struct buffer_head *bh;
+
+	page = find_or_create_page(bdev->bd_inode->i_mapping, index, GFP_NOFS);
+	if (!page)
+		return NULL;
+
+	if (!PageLocked(page))
+		BUG();
+
+	bh = page->buffers;
+	if (bh) {
+		if (bh->b_size == size)
+			return page;
+		if (!try_to_free_buffers(page, GFP_NOFS))
+			goto failed;
+	}
+
+	bh = create_buffers(page, size, 0);
+	if (!bh)
+		goto failed;
+	link_dev_buffers(page, bh);
+	return page;
+
+failed:
+	UnlockPage(page);
+	page_cache_release(page);
+	return NULL;
+}
+
+static void hash_page_buffers(struct page *page, kdev_t dev, int block, int size)
+{
+	struct buffer_head *head = page->buffers;
+	struct buffer_head *bh = head;
+	unsigned int uptodate;
+
+	uptodate = 1 << BH_Mapped;
+	if (Page_Uptodate(page))
+		uptodate |= 1 << BH_Uptodate;
+
+	write_lock(&hash_table_lock);
+	do {
+		if (!(bh->b_state & (1 << BH_Mapped))) {
+			init_buffer(bh, NULL, NULL);
+			bh->b_dev = dev;
+			bh->b_blocknr = block;
+			bh->b_state = uptodate;
+		}
+
+		/* Insert the buffer into the hash lists if necessary */
+		if (!bh->b_pprev)
+			__insert_into_hash_list(bh);
+
+		block++;
+		bh = bh->b_this_page;
+	} while (bh != head);
+	write_unlock(&hash_table_lock);
+}
+
+/*
+ * Try to increase the number of buffers available: the size argument
+ * is used to determine what kind of buffers we want.
+ */
+static int grow_buffers(kdev_t dev, unsigned long block, int size)
+{
+	struct page * page;
+	struct block_device *bdev;
+	unsigned long index;
+	int sizebits;
+
+	/* Size must be multiple of hard sectorsize */
+	if (size & (get_hardsect_size(dev)-1))
+		BUG();
+	/* Size must be within 512 bytes and PAGE_SIZE */
+	if (size < 512 || size > PAGE_SIZE)
+		BUG();
+
+	sizebits = -1;
+	do {
+		sizebits++;
+	} while ((size << sizebits) < PAGE_SIZE);
+
+	index = block >> sizebits;
+	block = index << sizebits;
+
+	bdev = bdget(kdev_t_to_nr(dev));
+	if (!bdev) {
+		printk("No block device for %s\n", kdevname(dev));
+		BUG();
+	}
+
+	/* Create a page with the proper size buffers.. */
+	page = grow_dev_page(bdev, index, size);
+
+	/* This is "wrong" - talk to Al Viro */
+	atomic_dec(&bdev->bd_count);
+	if (!page)
+		return 0;
+
+	/* Hash in the buffers on the hash list */
+	hash_page_buffers(page, dev, block, size);
+	UnlockPage(page);
+	page_cache_release(page);
+
+	/* We hashed up this page, so increment buffermem */
+	atomic_inc(&buffermem_pages);
+	return 1;
+}
+
+/*
+ * The first time the VM inspects a page which has locked buffers, it
+ * will just mark it as needing waiting upon on the scan of the page LRU.
+ * BH_Wait_IO is used for this.
+ *
+ * The second time the VM visits the page, if it still has locked
+ * buffers, it is time to start writing them out.  (BH_Wait_IO was set).
+ *
+ * The third time the VM visits the page, if the I/O hasn't completed
+ * then it's time to wait upon writeout.  BH_Lock and BH_Launder are
+ * used for this.
+ *
+ * There is also the case of buffers which were locked by someone else
+ * - write(2) callers, bdflush, etc.  There can be a huge number of these
+ * and we don't want to just skip them all and fail the page allocation. 
+ * We want to be able to wait on these buffers as well.
+ *
+ * The BH_Launder bit is set in submit_bh() to indicate that I/O is
+ * underway against the buffer, doesn't matter who started it - we know
+ * that the buffer will eventually come unlocked, and so it's safe to
+ * wait on it.
+ *
+ * The caller holds the page lock and the caller will free this page
+ * into current->local_page, so by waiting on the page's buffers the
+ * caller is guaranteed to obtain this page.
+ *
+ * sync_page_buffers() will sort-of return true if all the buffers
+ * against this page are freeable, so try_to_free_buffers() should
+ * try to free the page's buffers a second time.  This is a bit
+ * broken for blocksize < PAGE_CACHE_SIZE, but not very importantly.
+ */
+static int sync_page_buffers(struct buffer_head *head)
+{
+	struct buffer_head * bh = head;
+	int tryagain = 1;
+
+	do {
+		if (!buffer_dirty(bh) && !buffer_locked(bh))
+			continue;
+
+		/* Don't start IO first time around.. */
+		if (!test_and_set_bit(BH_Wait_IO, &bh->b_state)) {
+			tryagain = 0;
+			continue;
+		}
+
+		/* Second time through we start actively writing out.. */
+		if (test_and_set_bit(BH_Lock, &bh->b_state)) {
+			if (unlikely(!buffer_launder(bh))) {
+				tryagain = 0;
+				continue;
+			}
+			wait_on_buffer(bh);
+			tryagain = 1;
+			continue;
+		}
+
+		if (!atomic_set_buffer_clean(bh)) {
+			unlock_buffer(bh);
+			continue;
+		}
+
+		__mark_buffer_clean(bh);
+		get_bh(bh);
+		bh->b_end_io = end_buffer_io_sync;
+		submit_bh(WRITE, bh);
+		tryagain = 0;
+	} while ((bh = bh->b_this_page) != head);
+
+	return tryagain;
+}
+
+/*
+ * Can the buffer be thrown out?
+ */
+#define BUFFER_BUSY_BITS	((1<<BH_Dirty) | (1<<BH_Lock))
+#define buffer_busy(bh)		(atomic_read(&(bh)->b_count) | ((bh)->b_state & BUFFER_BUSY_BITS))
+
+/*
+ * try_to_free_buffers() checks if all the buffers on this particular page
+ * are unused, and free's the page if so.
+ *
+ * Wake up bdflush() if this fails - if we're running low on memory due
+ * to dirty buffers, we need to flush them out as quickly as possible.
+ *
+ * NOTE: There are quite a number of ways that threads of control can
+ *       obtain a reference to a buffer head within a page.  So we must
+ *	 lock out all of these paths to cleanly toss the page.
+ */
+int fastcall try_to_free_buffers(struct page * page, unsigned int gfp_mask)
+{
+	struct buffer_head * tmp, * bh = page->buffers;
+
+cleaned_buffers_try_again:
+	spin_lock(&lru_list_lock);
+	write_lock(&hash_table_lock);
+	tmp = bh;
+	do {
+		if (buffer_busy(tmp))
+			goto busy_buffer_page;
+		tmp = tmp->b_this_page;
+	} while (tmp != bh);
+
+	spin_lock(&unused_list_lock);
+	tmp = bh;
+
+	/* if this buffer was hashed, this page counts as buffermem */
+	if (bh->b_pprev)
+		atomic_dec(&buffermem_pages);
+	do {
+		struct buffer_head * p = tmp;
+		tmp = tmp->b_this_page;
+
+		if (p->b_dev == B_FREE) BUG();
+
+		remove_inode_queue(p);
+		__remove_from_queues(p);
+		__put_unused_buffer_head(p);
+	} while (tmp != bh);
+	spin_unlock(&unused_list_lock);
+
+	/* Wake up anyone waiting for buffer heads */
+	wake_up(&buffer_wait);
+
+	/* And free the page */
+	page->buffers = NULL;
+	page_cache_release(page);
+	write_unlock(&hash_table_lock);
+	spin_unlock(&lru_list_lock);
+	return 1;
+
+busy_buffer_page:
+	/* Uhhuh, start writeback so that we don't end up with all dirty pages */
+	write_unlock(&hash_table_lock);
+	spin_unlock(&lru_list_lock);
+	gfp_mask = pf_gfp_mask(gfp_mask);
+	if (gfp_mask & __GFP_IO) {
+		if ((gfp_mask & __GFP_HIGHIO) || !PageHighMem(page)) {
+			if (sync_page_buffers(bh)) {
+				/* no IO or waiting next time */
+				gfp_mask = 0;
+				goto cleaned_buffers_try_again;
+			}
+		}
+	}
+	if (balance_dirty_state() >= 0)
+		wakeup_bdflush();
+	return 0;
+}
+EXPORT_SYMBOL(try_to_free_buffers);
+
+/* ================== Debugging =================== */
+
+void show_buffers(void)
+{
+#ifdef CONFIG_SMP
+	struct buffer_head * bh;
+	int delalloc = 0, found = 0, locked = 0, dirty = 0, used = 0, lastused = 0;
+	int nlist;
+	static char *buf_types[NR_LIST] = { "CLEAN", "LOCKED", "DIRTY", };
+#endif
+
+	printk("Buffer memory:   %6dkB\n",
+		atomic_read(&buffermem_pages) << (PAGE_SHIFT-10));
+
+	printk("Cache memory:   %6ldkB\n",
+		(page_cache_size - atomic_read(&buffermem_pages)) << (PAGE_SHIFT-10));
+
+#ifdef CONFIG_SMP /* trylock does nothing on UP and so we could deadlock */
+	if (!spin_trylock(&lru_list_lock))
+		return;
+	for(nlist = 0; nlist < NR_LIST; nlist++) {
+		delalloc = found = locked = dirty = used = lastused = 0;
+		bh = lru_list[nlist];
+		if(!bh) continue;
+
+		do {
+			found++;
+			if (buffer_locked(bh))
+				locked++;
+			if (buffer_dirty(bh))
+				dirty++;
+			if (buffer_delay(bh))
+				delalloc++;
+			if (atomic_read(&bh->b_count))
+				used++, lastused = found;
+			bh = bh->b_next_free;
+		} while (bh != lru_list[nlist]);
+		{
+			int tmp = nr_buffers_type[nlist];
+			if (found != tmp)
+				printk("%9s: BUG -> found %d, reported %d\n",
+				       buf_types[nlist], found, tmp);
+		}
+		printk("%9s: %d buffers, %lu kbyte, %d used (last=%d), "
+		       "%d locked, %d dirty, %d delay\n",
+		       buf_types[nlist], found, size_buffers_type[nlist]>>10,
+		       used, lastused, locked, dirty, delalloc);
+	}
+	spin_unlock(&lru_list_lock);
+#endif
+}
+
+/* ===================== Init ======================= */
+
+/*
+ * allocate the hash table and init the free list
+ * Use gfp() for the hash table to decrease TLB misses, use
+ * SLAB cache for buffer heads.
+ */
+void __init buffer_init(unsigned long mempages)
+{
+	int order, i;
+	unsigned int nr_hash;
+
+	/* The buffer cache hash table is less important these days,
+	 * trim it a bit.
+	 */
+	mempages >>= 14;
+
+	mempages *= sizeof(struct buffer_head *);
+
+	for (order = 0; (1 << order) < mempages; order++)
+		;
+
+	/* try to allocate something until we get it or we're asking
+	   for something that is really too small */
+
+	do {
+		unsigned long tmp;
+
+		nr_hash = (PAGE_SIZE << order) / sizeof(struct buffer_head *);
+		bh_hash_mask = (nr_hash - 1);
+
+		tmp = nr_hash;
+		bh_hash_shift = 0;
+		while((tmp >>= 1UL) != 0UL)
+			bh_hash_shift++;
+
+		hash_table = (struct buffer_head **)
+		    __get_free_pages(GFP_ATOMIC, order);
+	} while (hash_table == NULL && --order > 0);
+	printk(KERN_INFO "Buffer cache hash table entries: %d (order: %d, %ld bytes)\n",
+	       nr_hash, order, (PAGE_SIZE << order));
+
+	if (!hash_table)
+		panic("Failed to allocate buffer hash table\n");
+
+	/* Setup hash chains. */
+	for(i = 0; i < nr_hash; i++)
+		hash_table[i] = NULL;
+
+	/* Setup lru lists. */
+	for(i = 0; i < NR_LIST; i++)
+		lru_list[i] = NULL;
+
+}
+
+
+/* ====================== bdflush support =================== */
+
+/* This is a simple kernel daemon, whose job it is to provide a dynamic
+ * response to dirty buffers.  Once this process is activated, we write back
+ * a limited number of buffers to the disks and then go back to sleep again.
+ */
+
+DECLARE_WAIT_QUEUE_HEAD(bdflush_wait);
+
+void wakeup_bdflush(void)
+{
+	wake_up_interruptible(&bdflush_wait);
+}
+
+void wakeup_kupdate(void)
+{
+	if (waitqueue_active(&kupdate_wait))
+		wake_up(&kupdate_wait);
+}
+
+/* 
+ * Here we attempt to write back old buffers.  We also try to flush inodes 
+ * and supers as well, since this function is essentially "update", and 
+ * otherwise there would be no way of ensuring that these quantities ever 
+ * get written back.  Ideally, we would have a timestamp on the inodes
+ * and superblocks so that we could write back only the old ones as well
+ */
+
+static int sync_old_buffers(void)
+{
+	lock_kernel();
+	sync_unlocked_inodes();
+	sync_supers(0, 0);
+	unlock_kernel();
+
+	for (;;) {
+		struct buffer_head *bh;
+
+		spin_lock(&lru_list_lock);
+		bh = lru_list[BUF_DIRTY];
+		if (!bh)
+			break;
+		if (time_before(jiffies, bh->b_flushtime) && !laptop_mode)
+			break;
+		if (write_some_buffers(NODEV))
+			continue;
+		return 0;
+	}
+	spin_unlock(&lru_list_lock);
+	return 0;
+}
+
+int block_sync_page(struct page *page)
+{
+	run_task_queue(&tq_disk);
+	return 0;
+}
+
+/* This is the interface to bdflush.  As we get more sophisticated, we can
+ * pass tuning parameters to this "process", to adjust how it behaves. 
+ * We would want to verify each parameter, however, to make sure that it 
+ * is reasonable. */
+
+asmlinkage long sys_bdflush(int func, long data)
+{
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+
+	if (func == 1) {
+		/* do_exit directly and let kupdate to do its work alone. */
+		do_exit(0);
+#if 0 /* left here as it's the only example of lazy-mm-stuff used from
+	 a syscall that doesn't care about the current mm context. */
+		int error;
+		struct mm_struct *user_mm;
+
+		/*
+		 * bdflush will spend all of it's time in kernel-space,
+		 * without touching user-space, so we can switch it into
+		 * 'lazy TLB mode' to reduce the cost of context-switches
+		 * to and from bdflush.
+		 */
+		user_mm = start_lazy_tlb();
+		error = sync_old_buffers();
+		end_lazy_tlb(user_mm);
+		return error;
+#endif
+	}
+
+	/* Basically func 1 means read param 1, 2 means write param 1, etc */
+	if (func >= 2) {
+		int i = (func-2) >> 1;
+		if (i >= 0 && i < N_PARAM) {
+			if ((func & 1) == 0)
+				return put_user(bdf_prm.data[i], (int*)data);
+
+			if (data >= bdflush_min[i] && data <= bdflush_max[i]) {
+				bdf_prm.data[i] = data;
+				return 0;
+			}
+		}
+		return -EINVAL;
+	}
+
+	/* Having func 0 used to launch the actual bdflush and then never
+	 * return (unless explicitly killed). We return zero here to 
+	 * remain semi-compatible with present update(8) programs.
+	 */
+	return 0;
+}
+
+/*
+ * This is the actual bdflush daemon itself. It used to be started from
+ * the syscall above, but now we launch it ourselves internally with
+ * kernel_thread(...)  directly after the first thread in init/main.c
+ */
+int bdflush(void *startup)
+{
+	struct task_struct *tsk = current;
+
+	/*
+	 *	We have a bare-bones task_struct, and really should fill
+	 *	in a few more things so "top" and /proc/2/{exe,root,cwd}
+	 *	display semi-sane things. Not real crucial though...  
+	 */
+
+	tsk->session = 1;
+	tsk->pgrp = 1;
+	strcpy(tsk->comm, "bdflush");
+
+	/* avoid getting signals */
+	spin_lock_irq(&tsk->sigmask_lock);
+	flush_signals(tsk);
+	sigfillset(&tsk->blocked);
+	recalc_sigpending(tsk);
+	spin_unlock_irq(&tsk->sigmask_lock);
+
+	complete((struct completion *)startup);
+
+	/*
+	 * FIXME: The ndirty logic here is wrong.  It's supposed to
+	 * send bdflush back to sleep after writing ndirty buffers.
+	 * In fact, the test is wrong so bdflush will in fact
+	 * sleep when bdflush_stop() returns true.
+	 *
+	 * FIXME: If it proves useful to implement ndirty properly,
+	 * then perhaps the value of ndirty should be scaled by the
+	 * amount of memory in the machine.
+	 */
+	for (;;) {
+		int ndirty = bdf_prm.b_un.ndirty;
+
+		CHECK_EMERGENCY_SYNC
+
+		while (ndirty > 0) {
+			spin_lock(&lru_list_lock);
+			if (!write_some_buffers(NODEV))
+				break;
+			ndirty -= NRSYNC;
+		}
+		if (ndirty > 0 || bdflush_stop())
+			interruptible_sleep_on(&bdflush_wait);
+	}
+}
+
+/*
+ * This is the kernel update daemon. It was used to live in userspace
+ * but since it's need to run safely we want it unkillable by mistake.
+ * You don't need to change your userspace configuration since
+ * the userspace `update` will do_exit(0) at the first sys_bdflush().
+ */
+int kupdate(void *startup)
+{
+	struct task_struct * tsk = current;
+	int interval;
+
+	tsk->session = 1;
+	tsk->pgrp = 1;
+	strcpy(tsk->comm, "kupdated");
+
+	/* sigstop and sigcont will stop and wakeup kupdate */
+	spin_lock_irq(&tsk->sigmask_lock);
+	sigfillset(&tsk->blocked);
+	siginitsetinv(&current->blocked, sigmask(SIGCONT) | sigmask(SIGSTOP));
+	recalc_sigpending(tsk);
+	spin_unlock_irq(&tsk->sigmask_lock);
+
+	complete((struct completion *)startup);
+
+	for (;;) {
+		DECLARE_WAITQUEUE(wait, tsk);
+
+		add_wait_queue(&kupdate_wait, &wait);
+
+		/* update interval */
+		interval = bdf_prm.b_un.interval;
+		if (interval) {
+			tsk->state = TASK_INTERRUPTIBLE;
+			schedule_timeout(interval);
+		} else {
+			tsk->state = TASK_STOPPED;
+			schedule(); /* wait for SIGCONT */
+		}
+		remove_wait_queue(&kupdate_wait, &wait);
+		/* check for sigstop */
+		if (signal_pending(tsk)) {
+			int sig, stopped = 0;
+			struct siginfo info;
+
+			spin_lock_irq(&tsk->sigmask_lock);
+			sig = dequeue_signal(&current->blocked, &info);
+			if (sig == SIGSTOP)
+				stopped = 1;
+			spin_unlock_irq(&tsk->sigmask_lock);
+			if (stopped) {
+				tsk->state = TASK_STOPPED;
+				schedule(); /* wait for SIGCONT */
+			}
+		}
+#ifdef DEBUG
+		printk(KERN_DEBUG "kupdate() activated...\n");
+#endif
+		sync_old_buffers();
+		if (laptop_mode)
+			fsync_dev(NODEV);
+		run_task_queue(&tq_disk);
+	}
+}
+
+static int __init bdflush_init(void)
+{
+	static struct completion startup __initdata = COMPLETION_INITIALIZER(startup);
+
+	kernel_thread(bdflush, &startup, CLONE_FS | CLONE_FILES | CLONE_SIGNAL);
+	wait_for_completion(&startup);
+	kernel_thread(kupdate, &startup, CLONE_FS | CLONE_FILES | CLONE_SIGNAL);
+	wait_for_completion(&startup);
+	return 0;
+}
+
+module_init(bdflush_init)
+
diff --git a/fs/char_dev.c b/fs/char_dev.c
new file mode 100644
index 00000000000000..de15221d0d5ea5
--- /dev/null
+++ b/fs/char_dev.c
@@ -0,0 +1,113 @@
+/*
+ *  linux/fs/block_dev.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+
+#define HASH_BITS	6
+#define HASH_SIZE	(1UL << HASH_BITS)
+#define HASH_MASK	(HASH_SIZE-1)
+static struct list_head cdev_hashtable[HASH_SIZE];
+static spinlock_t cdev_lock = SPIN_LOCK_UNLOCKED;
+static kmem_cache_t * cdev_cachep;
+
+#define alloc_cdev() \
+	 ((struct char_device *) kmem_cache_alloc(cdev_cachep, SLAB_KERNEL))
+#define destroy_cdev(cdev) kmem_cache_free(cdev_cachep, (cdev))
+
+static void init_once(void * foo, kmem_cache_t * cachep, unsigned long flags)
+{
+	struct char_device * cdev = (struct char_device *) foo;
+
+	if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
+	    SLAB_CTOR_CONSTRUCTOR)
+	{
+		memset(cdev, 0, sizeof(*cdev));
+		sema_init(&cdev->sem, 1);
+	}
+}
+
+void __init cdev_cache_init(void)
+{
+	int i;
+	struct list_head *head = cdev_hashtable;
+
+	i = HASH_SIZE;
+	do {
+		INIT_LIST_HEAD(head);
+		head++;
+		i--;
+	} while (i);
+
+	cdev_cachep = kmem_cache_create("cdev_cache",
+					 sizeof(struct char_device),
+					 0, SLAB_HWCACHE_ALIGN, init_once,
+					 NULL);
+	if (!cdev_cachep)
+		panic("Cannot create cdev_cache SLAB cache");
+}
+
+/*
+ * Most likely _very_ bad one - but then it's hardly critical for small
+ * /dev and can be fixed when somebody will need really large one.
+ */
+static inline unsigned long hash(dev_t dev)
+{
+	unsigned long tmp = dev;
+	tmp = tmp + (tmp >> HASH_BITS) + (tmp >> HASH_BITS*2);
+	return tmp & HASH_MASK;
+}
+
+static struct char_device *cdfind(dev_t dev, struct list_head *head)
+{
+	struct list_head *p;
+	struct char_device *cdev;
+	for (p=head->next; p!=head; p=p->next) {
+		cdev = list_entry(p, struct char_device, hash);
+		if (cdev->dev != dev)
+			continue;
+		atomic_inc(&cdev->count);
+		return cdev;
+	}
+	return NULL;
+}
+
+struct char_device *cdget(dev_t dev)
+{
+	struct list_head * head = cdev_hashtable + hash(dev);
+	struct char_device *cdev, *new_cdev;
+	spin_lock(&cdev_lock);
+	cdev = cdfind(dev, head);
+	spin_unlock(&cdev_lock);
+	if (cdev)
+		return cdev;
+	new_cdev = alloc_cdev();
+	if (!new_cdev)
+		return NULL;
+	atomic_set(&new_cdev->count,1);
+	new_cdev->dev = dev;
+	spin_lock(&cdev_lock);
+	cdev = cdfind(dev, head);
+	if (!cdev) {
+		list_add(&new_cdev->hash, head);
+		spin_unlock(&cdev_lock);
+		return new_cdev;
+	}
+	spin_unlock(&cdev_lock);
+	destroy_cdev(new_cdev);
+	return cdev;
+}
+
+void cdput(struct char_device *cdev)
+{
+	if (atomic_dec_and_lock(&cdev->count, &cdev_lock)) {
+		list_del(&cdev->hash);
+		spin_unlock(&cdev_lock);
+		destroy_cdev(cdev);
+	}
+}
+
diff --git a/fs/coda/Makefile b/fs/coda/Makefile
new file mode 100644
index 00000000000000..e169867eeaf13f
--- /dev/null
+++ b/fs/coda/Makefile
@@ -0,0 +1,16 @@
+#
+# Makefile for the Linux Coda filesystem routines.
+#
+
+O_TARGET := coda.o
+
+obj-y   := psdev.o cache.o cnode.o inode.o dir.o file.o upcall.o coda_linux.o\
+           symlink.o pioctl.o sysctl.o 
+obj-m   := $(O_TARGET)
+
+# If you want debugging output, please uncomment the following line.
+
+# EXTRA_CFLAGS += -DDEBUG -DDEBUG_SMB_MALLOC=1
+
+include $(TOPDIR)/Rules.make
+
diff --git a/fs/coda/cache.c b/fs/coda/cache.c
new file mode 100644
index 00000000000000..03ab04df4477ed
--- /dev/null
+++ b/fs/coda/cache.c
@@ -0,0 +1,128 @@
+/*
+ * Cache operations for Coda.
+ * For Linux 2.1: (C) 1997 Carnegie Mellon University
+ * For Linux 2.3: (C) 2000 Carnegie Mellon University
+ *
+ * Carnegie Mellon encourages users of this code to contribute improvements
+ * to the Coda project http://www.coda.cs.cmu.edu/ <coda@cs.cmu.edu>.
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <asm/uaccess.h>
+#include <linux/string.h>
+#include <linux/list.h>
+
+#include <linux/coda.h>
+#include <linux/coda_linux.h>
+#include <linux/coda_psdev.h>
+#include <linux/coda_fs_i.h>
+#include <linux/coda_cache.h>
+
+/* replace or extend an acl cache hit */
+void coda_cache_enter(struct inode *inode, int mask)
+{
+	struct coda_inode_info *cii = ITOC(inode);
+
+        if ( !coda_cred_ok(&cii->c_cached_cred) ) {
+                coda_load_creds(&cii->c_cached_cred);
+                cii->c_cached_perm = mask;
+        } else
+                cii->c_cached_perm |= mask;
+}
+
+/* remove cached acl from an inode */
+void coda_cache_clear_inode(struct inode *inode)
+{
+	struct coda_inode_info *cii = ITOC(inode);
+        cii->c_cached_perm = 0;
+}
+
+/* remove all acl caches for a principal (or all principals when cred == NULL)*/
+void coda_cache_clear_all(struct super_block *sb, struct coda_cred *cred)
+{
+        struct coda_sb_info *sbi;
+        struct coda_inode_info *cii;
+        struct list_head *tmp;
+
+        sbi = coda_sbp(sb);
+        if (!sbi) BUG();
+
+        list_for_each(tmp, &sbi->sbi_cihead)
+        {
+		cii = list_entry(tmp, struct coda_inode_info, c_cilist);
+                if (!cred || coda_cred_eq(cred, &cii->c_cached_cred))
+                        cii->c_cached_perm = 0;
+	}
+}
+
+
+/* check if the mask has been matched against the acl already */
+int coda_cache_check(struct inode *inode, int mask)
+{
+	struct coda_inode_info *cii = ITOC(inode);
+        int hit;
+	
+        hit = ((mask & cii->c_cached_perm) == mask) &&
+                coda_cred_ok(&cii->c_cached_cred);
+
+        CDEBUG(D_CACHE, "%s for ino %ld\n", hit ? "HIT" : "MISS", inode->i_ino);
+        return hit;
+}
+
+
+/* Purging dentries and children */
+/* The following routines drop dentries which are not
+   in use and flag dentries which are in use to be 
+   zapped later.
+
+   The flags are detected by:
+   - coda_dentry_revalidate (for lookups) if the flag is C_PURGE
+   - coda_dentry_delete: to remove dentry from the cache when d_count
+     falls to zero
+   - an inode method coda_revalidate (for attributes) if the 
+     flag is C_VATTR
+*/
+
+/* this won't do any harm: just flag all children */
+static void coda_flag_children(struct dentry *parent, int flag)
+{
+	struct list_head *child;
+	struct dentry *de;
+
+	spin_lock(&dcache_lock);
+	list_for_each(child, &parent->d_subdirs)
+	{
+		de = list_entry(child, struct dentry, d_child);
+		/* don't know what to do with negative dentries */
+		if ( ! de->d_inode ) 
+			continue;
+		CDEBUG(D_DOWNCALL, "%d for %*s/%*s\n", flag, 
+		       de->d_name.len, de->d_name.name, 
+		       de->d_parent->d_name.len, de->d_parent->d_name.name);
+		coda_flag_inode(de->d_inode, flag);
+	}
+	spin_unlock(&dcache_lock);
+	return; 
+}
+
+void coda_flag_inode_children(struct inode *inode, int flag)
+{
+	struct dentry *alias_de;
+
+	if ( !inode || !S_ISDIR(inode->i_mode)) 
+		return; 
+
+	alias_de = d_find_alias(inode);
+	if (!alias_de)
+		return;
+	coda_flag_children(alias_de, flag);
+	shrink_dcache_parent(alias_de);
+	dput(alias_de);
+}
+
diff --git a/fs/coda/cnode.c b/fs/coda/cnode.c
new file mode 100644
index 00000000000000..8827cb653a718a
--- /dev/null
+++ b/fs/coda/cnode.c
@@ -0,0 +1,206 @@
+/* cnode related routines for the coda kernel code
+   (C) 1996 Peter Braam
+   */
+
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/time.h>
+
+#include <linux/coda.h>
+#include <linux/coda_linux.h>
+#include <linux/coda_fs_i.h>
+#include <linux/coda_psdev.h>
+
+extern int coda_debug;
+
+inline int coda_fideq(ViceFid *fid1, ViceFid *fid2)
+{
+	if (fid1->Vnode != fid2->Vnode)   return 0;
+	if (fid1->Volume != fid2->Volume) return 0;
+	if (fid1->Unique != fid2->Unique) return 0;
+	return 1;
+}
+
+inline int coda_isnullfid(ViceFid *fid)
+{
+	if (fid->Vnode || fid->Volume || fid->Unique) return 0;
+	return 1;
+}
+
+static int coda_inocmp(struct inode *inode, unsigned long ino, void *opaque)
+{
+	return (coda_fideq((ViceFid *)opaque, &(ITOC(inode)->c_fid)));
+}
+
+static struct inode_operations coda_symlink_inode_operations = {
+	readlink:	page_readlink,
+	follow_link:	page_follow_link,
+	setattr:	coda_notify_change,
+};
+
+/* cnode.c */
+static void coda_fill_inode(struct inode *inode, struct coda_vattr *attr)
+{
+        CDEBUG(D_SUPER, "ino: %ld\n", inode->i_ino);
+
+        if (coda_debug & D_SUPER ) 
+		print_vattr(attr);
+
+        coda_vattr_to_iattr(inode, attr);
+
+        if (S_ISREG(inode->i_mode)) {
+                inode->i_op = &coda_file_inode_operations;
+                inode->i_fop = &coda_file_operations;
+        } else if (S_ISDIR(inode->i_mode)) {
+                inode->i_op = &coda_dir_inode_operations;
+                inode->i_fop = &coda_dir_operations;
+        } else if (S_ISLNK(inode->i_mode)) {
+		inode->i_op = &coda_symlink_inode_operations;
+		inode->i_data.a_ops = &coda_symlink_aops;
+		inode->i_mapping = &inode->i_data;
+	} else
+                init_special_inode(inode, inode->i_mode, attr->va_rdev);
+}
+
+struct inode * coda_iget(struct super_block * sb, ViceFid * fid,
+			 struct coda_vattr * attr)
+{
+	struct inode *inode;
+	struct coda_inode_info *cii;
+	ino_t ino = coda_f2i(fid);
+	struct coda_sb_info *sbi = coda_sbp(sb);
+
+	down(&sbi->sbi_iget4_mutex);
+	inode = iget4(sb, ino, coda_inocmp, fid);
+
+	if ( !inode ) { 
+		CDEBUG(D_CNODE, "coda_iget: no inode\n");
+		up(&sbi->sbi_iget4_mutex);
+		return ERR_PTR(-ENOMEM);
+	}
+
+	/* check if the inode is already initialized */
+	cii = ITOC(inode);
+	if (coda_isnullfid(&cii->c_fid))
+		/* new, empty inode found... initializing */
+		cii->c_fid = *fid;
+	up(&sbi->sbi_iget4_mutex);
+
+	/* always replace the attributes, type might have changed */
+	coda_fill_inode(inode, attr);
+	return inode;
+}
+
+/* this is effectively coda_iget:
+   - get attributes (might be cached)
+   - get the inode for the fid using vfs iget
+   - link the two up if this is needed
+   - fill in the attributes
+*/
+int coda_cnode_make(struct inode **inode, ViceFid *fid, struct super_block *sb)
+{
+        struct coda_vattr attr;
+        int error;
+        
+	/* We get inode numbers from Venus -- see venus source */
+	error = venus_getattr(sb, fid, &attr);
+	if ( error ) {
+	    CDEBUG(D_CNODE, 
+		   "coda_cnode_make: coda_getvattr returned %d for %s.\n", 
+		   error, coda_f2s(fid));
+	    *inode = NULL;
+	    return error;
+	} 
+
+	*inode = coda_iget(sb, fid, &attr);
+	if ( IS_ERR(*inode) ) {
+		printk("coda_cnode_make: coda_iget failed\n");
+                return PTR_ERR(*inode);
+        }
+
+	CDEBUG(D_DOWNCALL, "Done making inode: ino %ld, count %d with %s\n",
+		(*inode)->i_ino, atomic_read(&(*inode)->i_count), 
+		coda_f2s(&ITOC(*inode)->c_fid));
+	return 0;
+}
+
+
+void coda_replace_fid(struct inode *inode, struct ViceFid *oldfid, 
+		      struct ViceFid *newfid)
+{
+	struct coda_inode_info *cii;
+	
+	cii = ITOC(inode);
+
+	if (!coda_fideq(&cii->c_fid, oldfid))
+		BUG();
+
+	/* replace fid and rehash inode */
+	/* XXX we probably need to hold some lock here! */
+	remove_inode_hash(inode);
+	cii->c_fid = *newfid;
+	inode->i_ino = coda_f2i(newfid);
+	insert_inode_hash(inode);
+}
+
+/* convert a fid to an inode. */
+struct inode *coda_fid_to_inode(ViceFid *fid, struct super_block *sb) 
+{
+	ino_t nr;
+	struct inode *inode;
+	struct coda_inode_info *cii;
+	struct coda_sb_info *sbi;
+
+	if ( !sb ) {
+		printk("coda_fid_to_inode: no sb!\n");
+		return NULL;
+	}
+
+	CDEBUG(D_INODE, "%s\n", coda_f2s(fid));
+
+	sbi = coda_sbp(sb);
+	nr = coda_f2i(fid);
+	down(&sbi->sbi_iget4_mutex);
+	inode = iget4(sb, nr, coda_inocmp, fid);
+	if ( !inode ) {
+		printk("coda_fid_to_inode: null from iget, sb %p, nr %ld.\n",
+		       sb, (long)nr);
+		goto out_unlock;
+	}
+
+	cii = ITOC(inode);
+
+	/* The inode could already be purged due to memory pressure */
+	if (coda_isnullfid(&cii->c_fid)) {
+		inode->i_nlink = 0;
+		iput(inode);
+		goto out_unlock;
+	}
+
+        CDEBUG(D_INODE, "found %ld\n", inode->i_ino);
+	up(&sbi->sbi_iget4_mutex);
+	return inode;
+
+out_unlock:
+	up(&sbi->sbi_iget4_mutex);
+	return NULL;
+}
+
+/* the CONTROL inode is made without asking attributes from Venus */
+int coda_cnode_makectl(struct inode **inode, struct super_block *sb)
+{
+	int error = 0;
+
+	*inode = iget(sb, CTL_INO);
+	if ( *inode ) {
+		(*inode)->i_op = &coda_ioctl_inode_operations;
+		(*inode)->i_fop = &coda_ioctl_operations;
+		(*inode)->i_mode = 0444;
+		error = 0;
+	} else { 
+		error = -ENOMEM;
+	}
+    
+	return error;
+}
+
diff --git a/fs/coda/coda_linux.c b/fs/coda/coda_linux.c
new file mode 100644
index 00000000000000..c9b34577d1c1fd
--- /dev/null
+++ b/fs/coda/coda_linux.c
@@ -0,0 +1,291 @@
+/*
+ * Inode operations for Coda filesystem
+ * Original version: (C) 1996 P. Braam and M. Callahan
+ * Rewritten for Linux 2.1. (C) 1997 Carnegie Mellon University
+ * 
+ * Carnegie Mellon encourages users to contribute improvements to
+ * the Coda project. Contact Peter Braam (coda@cs.cmu.edu).
+ */
+
+#include <linux/version.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <asm/uaccess.h>
+#include <linux/string.h>
+
+#include <linux/coda.h>
+#include <linux/coda_linux.h>
+#include <linux/coda_psdev.h>
+#include <linux/coda_fs_i.h>
+
+/* initialize the debugging variables */
+int coda_debug;
+int coda_access_cache = 1;
+int coda_fake_statfs;
+
+/* print a fid */
+char * coda_f2s(ViceFid *f)
+{
+	static char s[60];
+	sprintf(s, "(%-#lx.%-#lx.%-#lx)", f->Volume, f->Vnode, f->Unique);
+	return s;
+}
+
+/* recognize special .CONTROL name */
+int coda_iscontrol(const char *name, size_t length)
+{
+	return ((CODA_CONTROLLEN == length) && 
+                (strncmp(name, CODA_CONTROL, CODA_CONTROLLEN) == 0));
+}
+
+/* recognize /coda inode */
+int coda_isroot(struct inode *i)
+{
+    return ( i->i_sb->s_root->d_inode == i );
+}
+
+/* put the current process credentials in the cred */
+void coda_load_creds(struct coda_cred *cred)
+{
+        cred->cr_uid = (vuid_t) current->uid;
+        cred->cr_euid = (vuid_t) current->euid;
+        cred->cr_suid = (vuid_t) current->suid;
+        cred->cr_fsuid = (vuid_t) current->fsuid;
+
+        cred->cr_groupid = (vgid_t) current->gid;
+        cred->cr_egid = (vgid_t) current->egid;
+        cred->cr_sgid = (vgid_t) current->sgid;
+        cred->cr_fsgid = (vgid_t) current->fsgid;
+}
+
+int coda_cred_ok(struct coda_cred *cred)
+{
+	return(current->fsuid == cred->cr_fsuid);
+}
+
+int coda_cred_eq(struct coda_cred *cred1, struct coda_cred *cred2)
+{
+	return (cred1->cr_fsuid == cred2->cr_fsuid);
+}
+
+unsigned short coda_flags_to_cflags(unsigned short flags)
+{
+	unsigned short coda_flags = 0;
+	
+	if ( (flags & O_ACCMODE) == O_RDONLY ){ 
+		CDEBUG(D_FILE, "--> C_O_READ added\n");
+		coda_flags |= C_O_READ;
+	}
+
+	if ( (flags & O_ACCMODE) ==  O_RDWR ) { 
+		CDEBUG(D_FILE, "--> C_O_READ | C_O_WRITE added\n");
+		coda_flags |= C_O_READ | C_O_WRITE;
+	}
+
+	if ( (flags & O_ACCMODE) == O_WRONLY ){ 
+		CDEBUG(D_FILE, "--> C_O_WRITE added\n");
+		coda_flags |= C_O_WRITE;
+	}
+
+	if ( flags & O_TRUNC )  { 
+		CDEBUG(D_FILE, "--> C_O_TRUNC added\n");
+		coda_flags |= C_O_TRUNC;
+	}
+
+	if ( flags & O_CREAT )  { 
+		CDEBUG(D_FILE, "--> C_O_CREAT added\n");
+		coda_flags |= C_O_CREAT;
+	}
+
+	if ( flags & O_EXCL ) {
+		coda_flags |= C_O_EXCL;
+		CDEBUG(D_FILE, "--> C_O_EXCL added\n");
+	}
+
+	return coda_flags;
+}
+
+
+/* utility functions below */
+void coda_vattr_to_iattr(struct inode *inode, struct coda_vattr *attr)
+{
+        int inode_type;
+        /* inode's i_dev, i_flags, i_ino are set by iget 
+           XXX: is this all we need ??
+           */
+        switch (attr->va_type) {
+        case C_VNON:
+                inode_type  = 0;
+                break;
+        case C_VREG:
+                inode_type = S_IFREG;
+                break;
+        case C_VDIR:
+                inode_type = S_IFDIR;
+                break;
+        case C_VLNK:
+                inode_type = S_IFLNK;
+                break;
+        default:
+                inode_type = 0;
+        }
+	inode->i_mode |= inode_type;
+
+	if (attr->va_mode != (u_short) -1)
+	        inode->i_mode = attr->va_mode | inode_type;
+        if (attr->va_uid != -1) 
+	        inode->i_uid = (uid_t) attr->va_uid;
+        if (attr->va_gid != -1)
+	        inode->i_gid = (gid_t) attr->va_gid;
+	if (attr->va_nlink != -1)
+	        inode->i_nlink = attr->va_nlink;
+	if (attr->va_size != -1)
+	        inode->i_size = attr->va_size;
+	if (attr->va_blocksize != -1)
+		inode->i_blksize = attr->va_blocksize;
+	if (attr->va_size != -1)
+		inode->i_blocks = (attr->va_size + 511) >> 9;
+	if (attr->va_atime.tv_sec != -1) 
+	        inode->i_atime = attr->va_atime.tv_sec;
+	if (attr->va_mtime.tv_sec != -1)
+	        inode->i_mtime = attr->va_mtime.tv_sec;
+        if (attr->va_ctime.tv_sec != -1)
+	        inode->i_ctime = attr->va_ctime.tv_sec;
+}
+
+
+/* 
+ * BSD sets attributes that need not be modified to -1. 
+ * Linux uses the valid field to indicate what should be
+ * looked at.  The BSD type field needs to be deduced from linux 
+ * mode.
+ * So we have to do some translations here.
+ */
+
+void coda_iattr_to_vattr(struct iattr *iattr, struct coda_vattr *vattr)
+{
+        unsigned int valid;
+
+        /* clean out */        
+        vattr->va_mode = (umode_t) -1;
+        vattr->va_uid = (vuid_t) -1; 
+        vattr->va_gid = (vgid_t) -1;
+        vattr->va_size = (off_t) -1;
+	vattr->va_atime.tv_sec = (time_t) -1;
+        vattr->va_mtime.tv_sec  = (time_t) -1;
+	vattr->va_ctime.tv_sec  = (time_t) -1;
+	vattr->va_atime.tv_nsec =  (time_t) -1;
+        vattr->va_mtime.tv_nsec = (time_t) -1;
+	vattr->va_ctime.tv_nsec = (time_t) -1;
+        vattr->va_type = C_VNON;
+	vattr->va_fileid = -1;
+	vattr->va_gen = -1;
+	vattr->va_bytes = -1;
+	vattr->va_nlink = -1;
+	vattr->va_blocksize = -1;
+	vattr->va_rdev = -1;
+        vattr->va_flags = 0;
+
+        /* determine the type */
+#if 0
+        mode = iattr->ia_mode;
+                if ( S_ISDIR(mode) ) {
+                vattr->va_type = C_VDIR; 
+        } else if ( S_ISREG(mode) ) {
+                vattr->va_type = C_VREG;
+        } else if ( S_ISLNK(mode) ) {
+                vattr->va_type = C_VLNK;
+        } else {
+                /* don't do others */
+                vattr->va_type = C_VNON;
+        }
+#endif 
+
+        /* set those vattrs that need change */
+        valid = iattr->ia_valid;
+        if ( valid & ATTR_MODE ) {
+                vattr->va_mode = iattr->ia_mode;
+	}
+        if ( valid & ATTR_UID ) {
+                vattr->va_uid = (vuid_t) iattr->ia_uid;
+	}
+        if ( valid & ATTR_GID ) {
+                vattr->va_gid = (vgid_t) iattr->ia_gid;
+	}
+        if ( valid & ATTR_SIZE ) {
+                vattr->va_size = iattr->ia_size;
+	}
+        if ( valid & ATTR_ATIME ) {
+                vattr->va_atime.tv_sec = iattr->ia_atime;
+                vattr->va_atime.tv_nsec = 0;
+	}
+        if ( valid & ATTR_MTIME ) {
+                vattr->va_mtime.tv_sec = iattr->ia_mtime;
+                vattr->va_mtime.tv_nsec = 0;
+	}
+        if ( valid & ATTR_CTIME ) {
+                vattr->va_ctime.tv_sec = iattr->ia_ctime;
+                vattr->va_ctime.tv_nsec = 0;
+	}
+}
+
+void print_vattr(struct coda_vattr *attr)
+{
+    char *typestr;
+
+    switch (attr->va_type) {
+    case C_VNON:
+	typestr = "C_VNON";
+	break;
+    case C_VREG:
+	typestr = "C_VREG";
+	break;
+    case C_VDIR:
+	typestr = "C_VDIR";
+	break;
+    case C_VBLK:
+	typestr = "C_VBLK";
+	break;
+    case C_VCHR:
+	typestr = "C_VCHR";
+	break;
+    case C_VLNK:
+	typestr = "C_VLNK";
+	break;
+    case C_VSOCK:
+	typestr = "C_VSCK";
+	break;
+    case C_VFIFO:
+	typestr = "C_VFFO";
+	break;
+    case C_VBAD:
+	typestr = "C_VBAD";
+	break;
+    default:
+	typestr = "????";
+	break;
+    }
+
+
+    printk("attr: type %s (%o)  mode %o uid %d gid %d rdev %d\n",
+	   typestr, (int)attr->va_type, (int)attr->va_mode, 
+	   (int)attr->va_uid, (int)attr->va_gid, (int)attr->va_rdev);
+    
+    printk("      fileid %d nlink %d size %d blocksize %d bytes %d\n",
+	      (int)attr->va_fileid, (int)attr->va_nlink, 
+	      (int)attr->va_size,
+	      (int)attr->va_blocksize,(int)attr->va_bytes);
+    printk("      gen %ld flags %ld\n",
+	      attr->va_gen, attr->va_flags);
+    printk("      atime sec %d nsec %d\n",
+	      (int)attr->va_atime.tv_sec, (int)attr->va_atime.tv_nsec);
+    printk("      mtime sec %d nsec %d\n",
+	      (int)attr->va_mtime.tv_sec, (int)attr->va_mtime.tv_nsec);
+    printk("      ctime sec %d nsec %d\n",
+	      (int)attr->va_ctime.tv_sec, (int)attr->va_ctime.tv_nsec);
+}
diff --git a/fs/coda/dir.c b/fs/coda/dir.c
new file mode 100644
index 00000000000000..86bf619333c5f5
--- /dev/null
+++ b/fs/coda/dir.c
@@ -0,0 +1,757 @@
+
+/*
+ * Directory operations for Coda filesystem
+ * Original version: (C) 1996 P. Braam and M. Callahan
+ * Rewritten for Linux 2.1. (C) 1997 Carnegie Mellon University
+ * 
+ * Carnegie Mellon encourages users to contribute improvements to
+ * the Coda project. Contact Peter Braam (coda@cs.cmu.edu).
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <linux/string.h>
+#include <linux/smp_lock.h>
+
+#include <asm/uaccess.h>
+
+#include <linux/coda.h>
+#include <linux/coda_linux.h>
+#include <linux/coda_psdev.h>
+#include <linux/coda_fs_i.h>
+#include <linux/coda_cache.h>
+#include <linux/coda_proc.h>
+
+/* dir inode-ops */
+static int coda_create(struct inode *dir, struct dentry *new, int mode);
+static int coda_mknod(struct inode *dir, struct dentry *new, int mode, int rdev);
+static struct dentry *coda_lookup(struct inode *dir, struct dentry *target);
+static int coda_link(struct dentry *old_dentry, struct inode *dir_inode, 
+		     struct dentry *entry);
+static int coda_unlink(struct inode *dir_inode, struct dentry *entry);
+static int coda_symlink(struct inode *dir_inode, struct dentry *entry,
+			const char *symname);
+static int coda_mkdir(struct inode *dir_inode, struct dentry *entry, int mode);
+static int coda_rmdir(struct inode *dir_inode, struct dentry *entry);
+static int coda_rename(struct inode *old_inode, struct dentry *old_dentry, 
+                       struct inode *new_inode, struct dentry *new_dentry);
+
+/* dir file-ops */
+static int coda_readdir(struct file *file, void *dirent, filldir_t filldir);
+
+/* dentry ops */
+static int coda_dentry_revalidate(struct dentry *de, int);
+static int coda_dentry_delete(struct dentry *);
+
+/* support routines */
+static int coda_venus_readdir(struct file *filp, filldir_t filldir,
+			      void *dirent, struct dentry *dir);
+int coda_fsync(struct file *, struct dentry *dentry, int datasync);
+
+int coda_hasmknod;
+
+struct dentry_operations coda_dentry_operations =
+{
+	d_revalidate:	coda_dentry_revalidate,
+	d_delete:	coda_dentry_delete,
+};
+
+struct inode_operations coda_dir_inode_operations =
+{
+	create:		coda_create,
+	lookup:		coda_lookup,
+	link:		coda_link,
+	unlink:		coda_unlink,
+	symlink:	coda_symlink,
+	mkdir:		coda_mkdir,
+	rmdir:		coda_rmdir,
+	mknod:		coda_mknod,
+	rename:		coda_rename,
+	permission:	coda_permission,
+        revalidate:	coda_revalidate_inode,
+	setattr:	coda_notify_change,
+};
+
+struct file_operations coda_dir_operations = {
+	llseek:		generic_file_llseek,
+	read:		generic_read_dir,
+	readdir:	coda_readdir,
+	open:		coda_open,
+	flush:  	coda_flush,
+	release:	coda_release,
+	fsync:		coda_fsync,
+};
+
+
+/* inode operations for directories */
+/* access routines: lookup, readlink, permission */
+static struct dentry *coda_lookup(struct inode *dir, struct dentry *entry)
+{
+	struct inode *res_inode = NULL;
+	struct ViceFid resfid = {0,0,0};
+	int dropme = 0; /* to indicate entry should not be cached */
+	int type = 0;
+	int error = 0;
+	const char *name = entry->d_name.name;
+	size_t length = entry->d_name.len;
+	
+	if ( length > CODA_MAXNAMLEN ) {
+	        printk("name too long: lookup, %s (%*s)\n", 
+		       coda_i2s(dir), (int)length, name);
+		return ERR_PTR(-ENAMETOOLONG);
+	}
+
+        CDEBUG(D_INODE, "name %s, len %ld in ino %ld, fid %s\n", 
+	       name, (long)length, dir->i_ino, coda_i2s(dir));
+
+        /* control object, create inode on the fly */
+        if (coda_isroot(dir) && coda_iscontrol(name, length)) {
+	        error = coda_cnode_makectl(&res_inode, dir->i_sb);
+		CDEBUG(D_SPECIAL, 
+		       "Lookup on CTL object; dir ino %ld, count %d\n", 
+		       dir->i_ino, atomic_read(&dir->i_count));
+		dropme = 1;
+                goto exit;
+        }
+
+	error = venus_lookup(dir->i_sb, coda_i2f(dir), 
+			     (const char *)name, length, &type, &resfid);
+
+	res_inode = NULL;
+	if (!error) {
+		if (type & CODA_NOCACHE) {
+			type &= (~CODA_NOCACHE);
+			CDEBUG(D_INODE, "dropme set for %s\n", 
+			       coda_f2s(&resfid));
+			dropme = 1;
+		}
+
+	    	error = coda_cnode_make(&res_inode, &resfid, dir->i_sb);
+		if (error) return ERR_PTR(error);
+	} else if (error != -ENOENT) {
+	        CDEBUG(D_INODE, "error for %s(%*s)%d\n",
+		       coda_i2s(dir), (int)length, name, error);
+		return ERR_PTR(error);
+	}
+	CDEBUG(D_INODE, "lookup: %s is (%s), type %d result %d, dropme %d\n",
+	       name, coda_f2s(&resfid), type, error, dropme);
+
+exit:
+	entry->d_time = 0;
+	entry->d_op = &coda_dentry_operations;
+	d_add(entry, res_inode);
+	if ( dropme ) {
+		d_drop(entry);
+		coda_flag_inode(res_inode, C_VATTR);
+	}
+        return NULL;
+}
+
+
+int coda_permission(struct inode *inode, int mask)
+{
+        int error;
+ 
+	coda_vfs_stat.permission++;
+
+        if ( mask == 0 )
+                return 0;
+
+	if ( coda_access_cache ) {
+		coda_permission_stat.count++;
+
+		if ( coda_cache_check(inode, mask) ) {
+			coda_permission_stat.hit_count++;
+			return 0; 
+		}
+	}
+
+        CDEBUG(D_INODE, "mask is %o\n", mask);
+        error = venus_access(inode->i_sb, coda_i2f(inode), mask);
+    
+        CDEBUG(D_INODE, "fid: %s, ino: %ld (mask: %o) error: %d\n", 
+	       coda_i2s(inode), inode->i_ino, mask, error);
+
+	if (!error)
+		coda_cache_enter(inode, mask);
+
+        return error; 
+}
+
+
+static inline void coda_dir_changed(struct inode *dir, int link)
+{
+#ifdef REQUERY_VENUS_FOR_MTIME
+	/* invalidate the directory cnode's attributes so we refetch the
+	 * attributes from venus next time the inode is referenced */
+	coda_flag_inode(dir, C_VATTR);
+#else
+	/* optimistically we can also act as if our nose bleeds. The
+         * granularity of the mtime is coarse anyways so we might actually be
+         * right most of the time. Note: we only do this for directories. */
+	dir->i_mtime = dir->i_ctime = CURRENT_TIME;
+#endif
+	if (link)
+		dir->i_nlink += link;
+}
+
+/* creation routines: create, mknod, mkdir, link, symlink */
+static int coda_create(struct inode *dir, struct dentry *de, int mode)
+{
+        int error=0;
+	const char *name=de->d_name.name;
+	int length=de->d_name.len;
+	struct inode *inode;
+	struct ViceFid newfid;
+	struct coda_vattr attrs;
+
+	coda_vfs_stat.create++;
+
+	CDEBUG(D_INODE, "name: %s, length %d, mode %o\n", name, length, mode);
+
+	if (coda_isroot(dir) && coda_iscontrol(name, length))
+		return -EPERM;
+
+	error = venus_create(dir->i_sb, coda_i2f(dir), name, length, 
+				0, mode, 0, &newfid, &attrs);
+
+        if ( error ) {
+		CDEBUG(D_INODE, "create: %s, result %d\n",
+		       coda_f2s(&newfid), error); 
+		d_drop(de);
+		return error;
+	}
+
+	inode = coda_iget(dir->i_sb, &newfid, &attrs);
+	if ( IS_ERR(inode) ) {
+		d_drop(de);
+		return PTR_ERR(inode);
+	}
+
+	/* invalidate the directory cnode's attributes */
+	coda_dir_changed(dir, 0);
+	d_instantiate(de, inode);
+        return 0;
+}
+
+static int coda_mknod(struct inode *dir, struct dentry *de, int mode, int rdev)
+{
+        int error=0;
+	const char *name=de->d_name.name;
+	int length=de->d_name.len;
+	struct inode *inode;
+	struct ViceFid newfid;
+	struct coda_vattr attrs;
+
+	if ( coda_hasmknod == 0 )
+		return -EIO;
+
+	coda_vfs_stat.create++;
+
+	CDEBUG(D_INODE, "name: %s, length %d, mode %o, rdev %x\n",
+	       name, length, mode, rdev);
+
+	if (coda_isroot(dir) && coda_iscontrol(name, length))
+		return -EPERM;
+
+	error = venus_create(dir->i_sb, coda_i2f(dir), name, length, 
+				0, mode, rdev, &newfid, &attrs);
+
+        if ( error ) {
+		CDEBUG(D_INODE, "mknod: %s, result %d\n",
+		       coda_f2s(&newfid), error); 
+		d_drop(de);
+		return error;
+	}
+
+	inode = coda_iget(dir->i_sb, &newfid, &attrs);
+	if ( IS_ERR(inode) ) {
+		d_drop(de);
+		return PTR_ERR(inode);
+	}
+
+	/* invalidate the directory cnode's attributes */
+	coda_dir_changed(dir, 0);
+	d_instantiate(de, inode);
+        return 0;
+}			     
+
+static int coda_mkdir(struct inode *dir, struct dentry *de, int mode)
+{
+	struct inode *inode;
+	struct coda_vattr attrs;
+	const char *name = de->d_name.name;
+	int len = de->d_name.len;
+	int error;
+	struct ViceFid newfid;
+
+	coda_vfs_stat.mkdir++;
+
+	if (coda_isroot(dir) && coda_iscontrol(name, len))
+		return -EPERM;
+
+	CDEBUG(D_INODE, "mkdir %s (len %d) in %s, mode %o.\n", 
+	       name, len, coda_i2s(dir), mode);
+
+	attrs.va_mode = mode;
+	error = venus_mkdir(dir->i_sb, coda_i2f(dir), 
+			       name, len, &newfid, &attrs);
+        
+        if ( error ) {
+	        CDEBUG(D_INODE, "mkdir error: %s result %d\n", 
+		       coda_f2s(&newfid), error); 
+		d_drop(de);
+                return error;
+        }
+         
+	CDEBUG(D_INODE, "mkdir: new dir has fid %s.\n", 
+	       coda_f2s(&newfid)); 
+
+	inode = coda_iget(dir->i_sb, &newfid, &attrs);
+	if ( IS_ERR(inode) ) {
+		d_drop(de);
+		return PTR_ERR(inode);
+	}
+	
+	/* invalidate the directory cnode's attributes */
+	coda_dir_changed(dir, 1);
+	d_instantiate(de, inode);
+        return 0;
+}
+
+/* try to make de an entry in dir_inodde linked to source_de */ 
+static int coda_link(struct dentry *source_de, struct inode *dir_inode, 
+	  struct dentry *de)
+{
+	struct inode *inode = source_de->d_inode;
+        const char * name = de->d_name.name;
+	int len = de->d_name.len;
+	int error;
+
+	coda_vfs_stat.link++;
+
+	if (coda_isroot(dir_inode) && coda_iscontrol(name, len))
+		return -EPERM;
+
+	CDEBUG(D_INODE, "old: fid: %s\n", coda_i2s(inode));
+	CDEBUG(D_INODE, "directory: %s\n", coda_i2s(dir_inode));
+
+	error = venus_link(dir_inode->i_sb, coda_i2f(inode),
+			   coda_i2f(dir_inode), (const char *)name, len);
+
+	if (error) { 
+		d_drop(de);
+		goto out;
+	}
+
+	coda_dir_changed(dir_inode, 0);
+	atomic_inc(&inode->i_count);
+	d_instantiate(de, inode);
+	inode->i_nlink++;
+        
+out:
+	CDEBUG(D_INODE, "link result %d\n",error);
+	return(error);
+}
+
+
+static int coda_symlink(struct inode *dir_inode, struct dentry *de,
+			const char *symname)
+{
+        const char *name = de->d_name.name;
+	int len = de->d_name.len;
+	int symlen;
+        int error=0;
+        
+	coda_vfs_stat.symlink++;
+
+	if (coda_isroot(dir_inode) && coda_iscontrol(name, len))
+		return -EPERM;
+
+	symlen = strlen(symname);
+	if ( symlen > CODA_MAXPATHLEN )
+                return -ENAMETOOLONG;
+
+        CDEBUG(D_INODE, "symname: %s, length: %d\n", symname, symlen);
+
+	/*
+	 * This entry is now negative. Since we do not create
+	 * an inode for the entry we have to drop it. 
+	 */
+	d_drop(de);
+	error = venus_symlink(dir_inode->i_sb, coda_i2f(dir_inode), name, len, 
+			      symname, symlen);
+
+	/* mtime is no good anymore */
+	if ( !error )
+		coda_dir_changed(dir_inode, 0);
+
+        CDEBUG(D_INODE, "in symlink result %d\n",error);
+        return error;
+}
+
+/* destruction routines: unlink, rmdir */
+int coda_unlink(struct inode *dir, struct dentry *de)
+{
+        int error;
+	const char *name = de->d_name.name;
+	int len = de->d_name.len;
+
+	coda_vfs_stat.unlink++;
+
+        CDEBUG(D_INODE, " %s in %s, dirino %ld\n", name , 
+	       coda_i2s(dir), dir->i_ino);
+
+        error = venus_remove(dir->i_sb, coda_i2f(dir), name, len);
+        if ( error ) {
+                CDEBUG(D_INODE, "upc returned error %d\n", error);
+                return error;
+        }
+
+	coda_dir_changed(dir, 0);
+	de->d_inode->i_nlink--;
+
+        return 0;
+}
+
+int coda_rmdir(struct inode *dir, struct dentry *de)
+{
+	const char *name = de->d_name.name;
+	int len = de->d_name.len;
+        int error;
+
+	coda_vfs_stat.rmdir++;
+
+	if (!d_unhashed(de))
+		return -EBUSY;
+	error = venus_rmdir(dir->i_sb, coda_i2f(dir), name, len);
+
+        if ( error ) {
+                CDEBUG(D_INODE, "upc returned error %d\n", error);
+                return error;
+        }
+
+	coda_dir_changed(dir, -1);
+	de->d_inode->i_nlink--;
+	d_delete(de);
+
+        return 0;
+}
+
+/* rename */
+static int coda_rename(struct inode *old_dir, struct dentry *old_dentry, 
+		       struct inode *new_dir, struct dentry *new_dentry)
+{
+        const char *old_name = old_dentry->d_name.name;
+        const char *new_name = new_dentry->d_name.name;
+	int old_length = old_dentry->d_name.len;
+	int new_length = new_dentry->d_name.len;
+        int link_adjust = 0;
+        int error;
+
+	coda_vfs_stat.rename++;
+
+        CDEBUG(D_INODE, "old: %s, (%d length), new: %s"
+	       "(%d length). old:d_count: %d, new:d_count: %d\n", 
+	       old_name, old_length, new_name, new_length,
+	       atomic_read(&old_dentry->d_count), atomic_read(&new_dentry->d_count));
+
+        error = venus_rename(old_dir->i_sb, coda_i2f(old_dir), 
+			     coda_i2f(new_dir), old_length, new_length, 
+			     (const char *) old_name, (const char *)new_name);
+
+        if ( !error ) {
+		if ( new_dentry->d_inode ) {
+			if ( S_ISDIR(new_dentry->d_inode->i_mode) )
+                        	link_adjust = 1;
+
+                        coda_dir_changed(old_dir, -link_adjust);
+                        coda_dir_changed(new_dir,  link_adjust);
+			coda_flag_inode(new_dentry->d_inode, C_VATTR);
+		} else {
+			coda_flag_inode(old_dir, C_VATTR);
+			coda_flag_inode(new_dir, C_VATTR);
+                }
+	}
+
+	CDEBUG(D_INODE, "result %d\n", error); 
+
+	return error;
+}
+
+
+/* file operations for directories */
+int coda_readdir(struct file *coda_file, void *dirent, filldir_t filldir)
+{
+	struct dentry *coda_dentry = coda_file->f_dentry;
+	struct coda_file_info *cfi;
+	struct file *host_file;
+	int ret;
+
+	cfi = CODA_FTOC(coda_file);
+	if (!cfi || cfi->cfi_magic != CODA_MAGIC) BUG();
+	host_file = cfi->cfi_container;
+
+	coda_vfs_stat.readdir++;
+
+	down(&host_file->f_dentry->d_inode->i_sem);
+	host_file->f_pos = coda_file->f_pos;
+
+	if ( !host_file->f_op->readdir ) {
+		/* Venus: we must read Venus dirents from the file */
+		ret = coda_venus_readdir(host_file, filldir, dirent, coda_dentry);
+	} else {
+		/* potemkin case: we were handed a directory inode */
+		/* We can't call vfs_readdir because we are already holding
+		 * the inode semaphore. */
+		ret = -ENOENT;
+		if (!IS_DEADDIR(host_file->f_dentry->d_inode))
+			ret = host_file->f_op->readdir(host_file, filldir, dirent);
+	}
+
+	coda_file->f_pos = host_file->f_pos;
+	up(&host_file->f_dentry->d_inode->i_sem);
+
+	return ret;
+}
+
+static inline unsigned int CDT2DT(unsigned char cdt)
+{
+	unsigned int dt;
+
+	switch(cdt) {
+	case CDT_UNKNOWN: dt = DT_UNKNOWN; break;
+	case CDT_FIFO:	  dt = DT_FIFO;    break;
+	case CDT_CHR:	  dt = DT_CHR;     break;
+	case CDT_DIR:	  dt = DT_DIR;     break;
+	case CDT_BLK:	  dt = DT_BLK;     break;
+	case CDT_REG:	  dt = DT_REG;     break;
+	case CDT_LNK:	  dt = DT_LNK;     break;
+	case CDT_SOCK:	  dt = DT_SOCK;    break;
+	case CDT_WHT:	  dt = DT_WHT;     break;
+	default:	  dt = DT_UNKNOWN; break;
+	}
+	return dt;
+}
+
+/* support routines */
+static int coda_venus_readdir(struct file *filp, filldir_t filldir,
+			      void *dirent, struct dentry *dir)
+{
+	int result = 0; /* # of entries returned */
+	struct venus_dirent *vdir;
+	unsigned long vdir_size =
+	    (unsigned long)(&((struct venus_dirent *)0)->d_name);
+	unsigned int type;
+	struct qstr name;
+	ino_t ino;
+	int ret, i;
+
+	vdir = (struct venus_dirent *)kmalloc(sizeof(*vdir), GFP_KERNEL);
+	if (!vdir) return -ENOMEM;
+
+	i = filp->f_pos;
+	switch(i) {
+	case 0:
+		ret = filldir(dirent, ".", 1, 0, dir->d_inode->i_ino, DT_DIR);
+		if (ret < 0) break;
+		result++;
+		filp->f_pos++;
+		/* fallthrough */
+	case 1:
+		ret = filldir(dirent, "..", 2, 1, dir->d_parent->d_inode->i_ino, DT_DIR);
+		if (ret < 0) break;
+		result++;
+		filp->f_pos++;
+		/* fallthrough */
+	default:
+	while (1) {
+		/* read entries from the directory file */
+		ret = kernel_read(filp, filp->f_pos - 2, (char *)vdir,
+				  sizeof(*vdir));
+		if (ret < 0) {
+			printk("coda_venus_readdir: read dir failed %d\n", ret);
+			break;
+		}
+		if (ret == 0) break; /* end of directory file reached */
+
+		/* catch truncated reads */
+		if (ret < vdir_size || ret < vdir_size + vdir->d_namlen) {
+			printk("coda_venus_readdir: short read: %ld\n",
+			       filp->f_dentry->d_inode->i_ino);
+			ret = -EBADF;
+			break;
+		}
+		/* validate whether the directory file actually makes sense */
+		if (vdir->d_reclen < vdir_size + vdir->d_namlen ||
+		    vdir->d_namlen > CODA_MAXNAMLEN) {
+			printk("coda_venus_readdir: Invalid dir: %ld\n",
+			       filp->f_dentry->d_inode->i_ino);
+			ret = -EBADF;
+			break;
+		}
+
+		name.len = vdir->d_namlen;
+		name.name = vdir->d_name;
+
+		/* Make sure we skip '.' and '..', we already got those */
+		if (name.name[0] == '.' && (name.len == 1 ||
+		    (vdir->d_name[1] == '.' && name.len == 2)))
+			vdir->d_fileno = name.len = 0;
+
+		/* skip null entries */
+		if (vdir->d_fileno && name.len) {
+			/* try to look up this entry in the dcache, that way
+			 * userspace doesn't have to worry about breaking
+			 * getcwd by having mismatched inode numbers for
+			 * internal volume mountpoints. */
+			ino = find_inode_number(dir, &name);
+			if (!ino) ino = vdir->d_fileno;
+
+			type = CDT2DT(vdir->d_type);
+			ret = filldir(dirent, name.name, name.len, filp->f_pos,
+				      ino, type); 
+			/* failure means no space for filling in this round */
+			if (ret < 0) break;
+			result++;
+		}
+		/* we'll always have progress because d_reclen is unsigned and
+		 * we've already established it is non-zero. */
+		filp->f_pos += vdir->d_reclen;
+	}
+	} 
+	kfree(vdir);
+	return result ? result : ret;
+}
+
+/* called when a cache lookup succeeds */
+static int coda_dentry_revalidate(struct dentry *de, int flags)
+{
+	struct inode *inode = de->d_inode;
+	struct coda_inode_info *cii;
+
+	if (!inode)
+		return 1;
+	lock_kernel();
+	if (coda_isroot(inode))
+		goto out;
+	if (is_bad_inode(inode))
+		goto bad;
+
+	cii = ITOC(de->d_inode);
+	if (!(cii->c_flags & (C_PURGE | C_FLUSH)))
+		goto out;
+
+	shrink_dcache_parent(de);
+
+	/* propagate for a flush */
+	if (cii->c_flags & C_FLUSH) 
+		coda_flag_inode_children(inode, C_FLUSH);
+
+	if (atomic_read(&de->d_count) > 1) {
+		/* pretend it's valid, but don't change the flags */
+		CDEBUG(D_DOWNCALL, "BOOM for: ino %ld, %s\n",
+		       de->d_inode->i_ino, coda_f2s(&cii->c_fid));
+		goto out;
+	}
+
+	/* clear the flags. */
+	cii->c_flags &= ~(C_VATTR | C_PURGE | C_FLUSH);
+
+bad:
+	unlock_kernel();
+	return 0;
+out:
+	unlock_kernel();
+	return 1;
+}
+
+/*
+ * This is the callback from dput() when d_count is going to 0.
+ * We use this to unhash dentries with bad inodes.
+ */
+static int coda_dentry_delete(struct dentry * dentry)
+{
+	int flags;
+
+	if (!dentry->d_inode) 
+		return 0;
+
+	flags = (ITOC(dentry->d_inode)->c_flags) & C_PURGE;
+	if (is_bad_inode(dentry->d_inode) || flags) {
+		CDEBUG(D_DOWNCALL, "bad inode, unhashing %s/%s, %ld\n", 
+		       dentry->d_parent->d_name.name, dentry->d_name.name,
+		       dentry->d_inode->i_ino);
+		return 1;
+	}
+	return 0;
+}
+
+
+
+/*
+ * This is called when we want to check if the inode has
+ * changed on the server.  Coda makes this easy since the
+ * cache manager Venus issues a downcall to the kernel when this 
+ * happens 
+ */
+int coda_revalidate_inode(struct dentry *dentry)
+{
+	struct coda_vattr attr;
+	int error = 0;
+	int old_mode;
+	ino_t old_ino;
+	struct inode *inode = dentry->d_inode;
+	struct coda_inode_info *cii = ITOC(inode);
+
+	CDEBUG(D_INODE, "revalidating: %*s/%*s\n", 
+	       dentry->d_name.len, dentry->d_name.name,
+	       dentry->d_parent->d_name.len, dentry->d_parent->d_name.name);
+
+	lock_kernel();
+	if ( !cii->c_flags )
+		goto ok;
+
+	if (cii->c_flags & (C_VATTR | C_PURGE | C_FLUSH)) {
+		error = venus_getattr(inode->i_sb, &(cii->c_fid), &attr);
+		if ( error )
+			goto return_bad_inode;
+
+		/* this inode may be lost if:
+		   - it's ino changed 
+		   - type changes must be permitted for repair and
+		   missing mount points.
+		*/
+		old_mode = inode->i_mode;
+		old_ino = inode->i_ino;
+		coda_vattr_to_iattr(inode, &attr);
+
+		if ((old_mode & S_IFMT) != (inode->i_mode & S_IFMT)) {
+			printk("Coda: inode %ld, fid %s changed type!\n",
+			       inode->i_ino, coda_f2s(&(cii->c_fid)));
+		}
+
+		/* the following can happen when a local fid is replaced 
+		   with a global one, here we lose and declare the inode bad */
+		if (inode->i_ino != old_ino)
+			goto return_bad_inode;
+		
+		coda_flag_inode_children(inode, C_FLUSH);
+		cii->c_flags &= ~(C_VATTR | C_PURGE | C_FLUSH);
+	}
+
+ok:
+	unlock_kernel();
+	return 0;
+
+return_bad_inode:
+	unlock_kernel();
+	return -EIO;
+}
+
diff --git a/fs/coda/file.c b/fs/coda/file.c
new file mode 100644
index 00000000000000..164f3170b7c126
--- /dev/null
+++ b/fs/coda/file.c
@@ -0,0 +1,292 @@
+/*
+ * File operations for Coda.
+ * Original version: (C) 1996 Peter Braam 
+ * Rewritten for Linux 2.1: (C) 1997 Carnegie Mellon University
+ *
+ * Carnegie Mellon encourages users of this code to contribute improvements
+ * to the Coda project. Contact Peter Braam <coda@cs.cmu.edu>.
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/file.h>
+#include <linux/fs.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <linux/smp_lock.h>
+#include <linux/string.h>
+#include <asm/uaccess.h>
+
+#include <linux/coda.h>
+#include <linux/coda_linux.h>
+#include <linux/coda_fs_i.h>
+#include <linux/coda_psdev.h>
+#include <linux/coda_proc.h>
+
+/* if CODA_STORE fails with EOPNOTSUPP, venus clearly doesn't support
+ * CODA_STORE/CODA_RELEASE and we fall back on using the CODA_CLOSE upcall */
+int use_coda_close;
+
+static ssize_t
+coda_file_read(struct file *coda_file, char *buf, size_t count, loff_t *ppos)
+{
+	struct coda_file_info *cfi;
+	struct file *host_file;
+
+	cfi = CODA_FTOC(coda_file);
+	if (!cfi || cfi->cfi_magic != CODA_MAGIC) BUG();
+	host_file = cfi->cfi_container;
+
+	if (!host_file->f_op || !host_file->f_op->read)
+		return -EINVAL;
+
+	return host_file->f_op->read(host_file, buf, count, ppos);
+}
+
+static ssize_t
+coda_file_write(struct file *coda_file, const char *buf, size_t count, loff_t *ppos)
+{
+	struct inode *coda_inode = coda_file->f_dentry->d_inode;
+	struct coda_file_info *cfi;
+	struct file *host_file;
+	ssize_t ret;
+
+	cfi = CODA_FTOC(coda_file);
+	if (!cfi || cfi->cfi_magic != CODA_MAGIC) BUG();
+	host_file = cfi->cfi_container;
+
+	if (!host_file->f_op || !host_file->f_op->write)
+		return -EINVAL;
+
+	down(&coda_inode->i_sem);
+
+	ret = host_file->f_op->write(host_file, buf, count, ppos);
+
+	coda_inode->i_size = host_file->f_dentry->d_inode->i_size;
+	coda_inode->i_blocks = (coda_inode->i_size + 511) >> 9;
+	coda_inode->i_mtime = coda_inode->i_ctime = CURRENT_TIME;
+	up(&coda_inode->i_sem);
+
+	return ret;
+}
+
+static int
+coda_file_mmap(struct file *coda_file, struct vm_area_struct *vma)
+{
+	struct coda_file_info *cfi;
+	struct coda_inode_info *cii;
+	struct file *host_file;
+	struct inode *coda_inode, *host_inode;
+
+	cfi = CODA_FTOC(coda_file);
+	if (!cfi || cfi->cfi_magic != CODA_MAGIC) BUG();
+	host_file = cfi->cfi_container;
+
+	if (!host_file->f_op || !host_file->f_op->mmap)
+		return -ENODEV;
+
+	coda_inode = coda_file->f_dentry->d_inode;
+	host_inode = host_file->f_dentry->d_inode;
+	if (coda_inode->i_mapping == &coda_inode->i_data)
+		coda_inode->i_mapping = host_inode->i_mapping;
+
+	/* only allow additional mmaps as long as userspace isn't changing
+	 * the container file on us! */
+	else if (coda_inode->i_mapping != host_inode->i_mapping)
+		return -EBUSY;
+
+	/* keep track of how often the coda_inode/host_file has been mmapped */
+	cii = ITOC(coda_inode);
+	cii->c_mapcount++;
+	cfi->cfi_mapcount++;
+ 
+	return host_file->f_op->mmap(host_file, vma);
+}
+
+int coda_open(struct inode *coda_inode, struct file *coda_file)
+{
+	struct file *host_file = NULL;
+	int error;
+	unsigned short flags = coda_file->f_flags & (~O_EXCL);
+	unsigned short coda_flags = coda_flags_to_cflags(flags);
+	struct coda_file_info *cfi;
+	struct inode *host_inode;
+
+	coda_vfs_stat.open++;
+
+	cfi = kmalloc(sizeof(struct coda_file_info), GFP_KERNEL);
+	if (!cfi)
+		return -ENOMEM;
+
+	lock_kernel();
+
+	error = venus_open(coda_inode->i_sb, coda_i2f(coda_inode), coda_flags,
+			   &host_file); 
+
+	if (!error && !host_file)
+		error = EBADF;
+
+	if (error) {
+		kfree(cfi);
+		unlock_kernel();
+		return error;
+	}
+
+	host_file->f_flags |= coda_file->f_flags & (O_APPEND | O_SYNC);
+
+	cfi->cfi_magic = CODA_MAGIC;
+	cfi->cfi_mapcount = 0;
+	cfi->cfi_container = host_file;
+	coda_load_creds(&cfi->cfi_cred);
+
+	host_inode = host_file->f_dentry->d_inode;
+	if (coda_inode->i_mapping == &coda_inode->i_data)
+		coda_inode->i_mapping = host_inode->i_mapping;
+
+	else if (coda_inode->i_mapping != host_inode->i_mapping) {
+		/* This is not a good thing, it doesn't happen with 'venus'
+		 * Coda's own userspace daemon, but others might not provide
+		 * the same guarantees. Still looking for the real fix. */
+		printk("coda_open: changed mapping\n");
+		coda_inode->i_mapping = host_inode->i_mapping;
+	}
+
+	if (coda_file->private_data != NULL) BUG();
+	coda_file->private_data = cfi;
+
+	unlock_kernel();
+	return 0;
+}
+
+int coda_flush(struct file *coda_file)
+{
+	unsigned short flags = coda_file->f_flags & ~O_EXCL;
+	unsigned short coda_flags = coda_flags_to_cflags(flags);
+	struct coda_file_info *cfi;
+	struct inode *coda_inode;
+	int err = 0, fcnt;
+
+	coda_vfs_stat.flush++;
+
+	/* No need to make an upcall when we have not made any modifications
+	 * to the file */
+	if ((coda_file->f_flags & O_ACCMODE) == O_RDONLY)
+		return 0;
+
+	if (use_coda_close)
+		return 0;
+
+	fcnt = file_count(coda_file);
+	if (fcnt > 1) return 0;
+
+	coda_inode = coda_file->f_dentry->d_inode;
+
+	cfi = CODA_FTOC(coda_file);
+	if (!cfi || cfi->cfi_magic != CODA_MAGIC) BUG();
+
+	err = venus_store(coda_inode->i_sb, coda_i2f(coda_inode), coda_flags,
+			  &cfi->cfi_cred);
+
+	if (err == -EOPNOTSUPP) {
+		use_coda_close = 1;
+		err = 0;
+	}
+
+	return err;
+}
+
+int coda_release(struct inode *coda_inode, struct file *coda_file)
+{
+	unsigned short flags = (coda_file->f_flags) & (~O_EXCL);
+	unsigned short coda_flags = coda_flags_to_cflags(flags);
+	struct coda_file_info *cfi;
+	struct coda_inode_info *cii;
+	struct inode *host_inode;
+	int err = 0;
+
+	lock_kernel();
+	coda_vfs_stat.release++;
+ 
+	if (!use_coda_close) {
+		err = venus_release(coda_inode->i_sb, coda_i2f(coda_inode),
+				    coda_flags);
+		if (err == -EOPNOTSUPP) {
+			use_coda_close = 1;
+			err = 0;
+		}
+	}
+
+	cfi = CODA_FTOC(coda_file);
+	if (!cfi || cfi->cfi_magic != CODA_MAGIC) BUG();
+
+	if (use_coda_close)
+		err = venus_close(coda_inode->i_sb, coda_i2f(coda_inode),
+				  coda_flags, &cfi->cfi_cred);
+
+	host_inode = cfi->cfi_container->f_dentry->d_inode;
+	cii = ITOC(coda_inode);
+
+	/* did we mmap this file? */
+	if (coda_inode->i_mapping == &host_inode->i_data) {
+		cii->c_mapcount -= cfi->cfi_mapcount;
+		if (!cii->c_mapcount)
+			coda_inode->i_mapping = &coda_inode->i_data;
+	}
+
+	fput(cfi->cfi_container);
+
+	kfree(coda_file->private_data);
+	coda_file->private_data = NULL;
+
+	unlock_kernel();
+	return err;
+}
+
+int coda_fsync(struct file *coda_file, struct dentry *coda_dentry, int datasync)
+{
+	struct file *host_file;
+	struct dentry *host_dentry;
+	struct inode *host_inode, *coda_inode = coda_dentry->d_inode;
+	struct coda_file_info *cfi;
+	int err = 0;
+
+	if (!(S_ISREG(coda_inode->i_mode) || S_ISDIR(coda_inode->i_mode) ||
+	      S_ISLNK(coda_inode->i_mode)))
+		return -EINVAL;
+
+	cfi = CODA_FTOC(coda_file);
+	if (!cfi || cfi->cfi_magic != CODA_MAGIC) BUG();
+	host_file = cfi->cfi_container;
+
+	coda_vfs_stat.fsync++;
+
+	if (host_file->f_op && host_file->f_op->fsync) {
+		host_dentry = host_file->f_dentry;
+		host_inode = host_dentry->d_inode;
+		down(&host_inode->i_sem);
+		err = host_file->f_op->fsync(host_file, host_dentry, datasync);
+		up(&host_inode->i_sem);
+	}
+
+	if ( !err && !datasync ) {
+		lock_kernel();
+		err = venus_fsync(coda_inode->i_sb, coda_i2f(coda_inode));
+		unlock_kernel();
+	}
+
+	return err;
+}
+
+struct file_operations coda_file_operations = {
+	llseek:		generic_file_llseek,
+	read:		coda_file_read,
+	write:		coda_file_write,
+	mmap:		coda_file_mmap,
+	open:		coda_open,
+	flush:  	coda_flush,
+	release:	coda_release,
+	fsync:		coda_fsync,
+};
+
diff --git a/fs/coda/inode.c b/fs/coda/inode.c
new file mode 100644
index 00000000000000..a20ec117f3ba6b
--- /dev/null
+++ b/fs/coda/inode.c
@@ -0,0 +1,271 @@
+/*
+ * Super block/filesystem wide operations
+ *
+ * Copyright (C) 1996 Peter J. Braam <braam@maths.ox.ac.uk> and 
+ * Michael Callahan <callahan@maths.ox.ac.uk> 
+ * 
+ * Rewritten for Linux 2.1.  Peter Braam <braam@cs.cmu.edu>
+ * Copyright (C) Carnegie Mellon University
+ */
+
+#define __NO_VERSION__
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/string.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <linux/unistd.h>
+#include <linux/smp_lock.h>
+#include <linux/file.h>
+
+#include <asm/system.h>
+#include <asm/uaccess.h>
+
+#include <linux/fs.h>
+#include <linux/vmalloc.h>
+
+#include <linux/coda.h>
+#include <linux/coda_linux.h>
+#include <linux/coda_psdev.h>
+#include <linux/coda_fs_i.h>
+#include <linux/coda_cache.h>
+
+/* VFS super_block ops */
+static struct super_block *coda_read_super(struct super_block *, void *, int);
+static void coda_read_inode(struct inode *);
+static void coda_clear_inode(struct inode *);
+static void coda_put_super(struct super_block *);
+static int coda_statfs(struct super_block *sb, struct statfs *buf);
+
+/* exported operations */
+struct super_operations coda_super_operations =
+{
+	read_inode:	coda_read_inode,
+	clear_inode:	coda_clear_inode,
+	put_super:	coda_put_super,
+	statfs:		coda_statfs,
+};
+
+static int get_device_index(struct coda_mount_data *data)
+{
+	struct file *file;
+	struct inode *inode;
+	int idx;
+
+	if(data == NULL) {
+		printk("coda_read_super: Bad mount data\n");
+		return -1;
+	}
+
+	if(data->version != CODA_MOUNT_VERSION) {
+		printk("coda_read_super: Bad mount version\n");
+		return -1;
+	}
+
+	file = fget(data->fd);
+	inode = NULL;
+	if(file)
+		inode = file->f_dentry->d_inode;
+	
+	if(!inode || !S_ISCHR(inode->i_mode) ||
+	   MAJOR(inode->i_rdev) != CODA_PSDEV_MAJOR) {
+		if(file)
+			fput(file);
+
+		printk("coda_read_super: Bad file\n");
+		return -1;
+	}
+
+	idx = MINOR(inode->i_rdev);
+	fput(file);
+
+	if(idx < 0 || idx >= MAX_CODADEVS) {
+		printk("coda_read_super: Bad minor number\n");
+		return -1;
+	}
+
+	return idx;
+}
+
+static struct super_block * coda_read_super(struct super_block *sb, 
+					    void *data, int silent)
+{
+        struct inode *root = 0; 
+	struct coda_sb_info *sbi = NULL;
+	struct venus_comm *vc = NULL;
+        ViceFid fid;
+        int error;
+	int idx;
+
+	idx = get_device_index((struct coda_mount_data *) data);
+
+	/* Ignore errors in data, for backward compatibility */
+	if(idx == -1)
+		idx = 0;
+	
+	printk(KERN_INFO "coda_read_super: device index: %i\n", idx);
+
+	vc = &coda_comms[idx];
+	if (!vc->vc_inuse) {
+		printk("coda_read_super: No pseudo device\n");
+		return NULL;
+	}
+
+        if ( vc->vc_sb ) {
+		printk("coda_read_super: Device already mounted\n");
+		return NULL;
+	}
+
+	sbi = kmalloc(sizeof(struct coda_sb_info), GFP_KERNEL);
+	if(!sbi) {
+		return NULL;
+	}
+
+	vc->vc_sb = sb;
+
+	sbi->sbi_sb = sb;
+	sbi->sbi_vcomm = vc;
+	INIT_LIST_HEAD(&sbi->sbi_cihead);
+	init_MUTEX(&sbi->sbi_iget4_mutex);
+
+        sb->u.generic_sbp = sbi;
+        sb->s_blocksize = 1024;	/* XXXXX  what do we put here?? */
+        sb->s_blocksize_bits = 10;
+        sb->s_magic = CODA_SUPER_MAGIC;
+        sb->s_op = &coda_super_operations;
+
+	/* get root fid from Venus: this needs the root inode */
+	error = venus_rootfid(sb, &fid);
+	if ( error ) {
+	        printk("coda_read_super: coda_get_rootfid failed with %d\n",
+		       error);
+		goto error;
+	}	  
+	printk("coda_read_super: rootfid is %s\n", coda_f2s(&fid));
+	
+	/* make root inode */
+        error = coda_cnode_make(&root, &fid, sb);
+        if ( error || !root ) {
+	    printk("Failure of coda_cnode_make for root: error %d\n", error);
+	    goto error;
+	} 
+
+	printk("coda_read_super: rootinode is %ld dev %d\n", 
+	       root->i_ino, root->i_dev);
+	sb->s_root = d_alloc_root(root);
+        return sb;
+
+ error:
+	if (sbi) {
+		kfree(sbi);
+		if(vc)
+			vc->vc_sb = NULL;		
+	}
+	if (root)
+                iput(root);
+
+        return NULL;
+}
+
+static void coda_put_super(struct super_block *sb)
+{
+        struct coda_sb_info *sbi;
+
+	sbi = coda_sbp(sb);
+	sbi->sbi_vcomm->vc_sb = NULL;
+        list_del_init(&sbi->sbi_cihead);
+
+	printk("Coda: Bye bye.\n");
+	kfree(sbi);
+}
+
+/* all filling in of inodes postponed until lookup */
+static void coda_read_inode(struct inode *inode)
+{
+	struct coda_sb_info *sbi = coda_sbp(inode->i_sb);
+	struct coda_inode_info *cii;
+
+        if (!sbi) BUG();
+
+	cii = ITOC(inode);
+	if (!coda_isnullfid(&cii->c_fid)) {
+            printk("coda_read_inode: initialized inode");
+            return;
+        }
+
+	cii->c_mapcount = 0;
+	list_add(&cii->c_cilist, &sbi->sbi_cihead);
+}
+
+static void coda_clear_inode(struct inode *inode)
+{
+	struct coda_inode_info *cii = ITOC(inode);
+
+        CDEBUG(D_SUPER, " inode->ino: %ld, count: %d\n", 
+	       inode->i_ino, atomic_read(&inode->i_count));        
+	CDEBUG(D_DOWNCALL, "clearing inode: %ld, %x\n", inode->i_ino, cii->c_flags);
+
+        list_del_init(&cii->c_cilist);
+	coda_cache_clear_inode(inode);
+}
+
+int coda_notify_change(struct dentry *de, struct iattr *iattr)
+{
+	struct inode *inode = de->d_inode;
+	struct coda_vattr vattr;
+	int error;
+
+	memset(&vattr, 0, sizeof(vattr)); 
+
+	inode->i_ctime = CURRENT_TIME;
+	coda_iattr_to_vattr(iattr, &vattr);
+	vattr.va_type = C_VNON; /* cannot set type */
+	CDEBUG(D_SUPER, "vattr.va_mode %o\n", vattr.va_mode);
+
+	/* Venus is responsible for truncating the container-file!!! */
+	error = venus_setattr(inode->i_sb, coda_i2f(inode), &vattr);
+
+	if ( !error ) {
+	        coda_vattr_to_iattr(inode, &vattr); 
+		coda_cache_clear_inode(inode);
+	}
+	CDEBUG(D_SUPER, "inode.i_mode %o, error %d\n", inode->i_mode, error);
+
+	return error;
+}
+
+struct inode_operations coda_file_inode_operations = {
+	permission:	coda_permission,
+	revalidate:	coda_revalidate_inode,
+	setattr:	coda_notify_change,
+};
+
+static int coda_statfs(struct super_block *sb, struct statfs *buf)
+{
+	int error;
+
+	error = venus_statfs(sb, buf);
+
+	if (error) {
+		/* fake something like AFS does */
+		buf->f_blocks = 9000000;
+		buf->f_bfree  = 9000000;
+		buf->f_bavail = 9000000;
+		buf->f_files  = 9000000;
+		buf->f_ffree  = 9000000;
+	}
+
+	/* and fill in the rest */
+	buf->f_type = CODA_SUPER_MAGIC;
+	buf->f_bsize = 1024;
+	buf->f_namelen = CODA_MAXNAMLEN;
+
+	return 0; 
+}
+
+/* init_coda: used by filesystems.c to register coda */
+
+DECLARE_FSTYPE( coda_fs_type, "coda", coda_read_super, 0);
+
diff --git a/fs/coda/pioctl.c b/fs/coda/pioctl.c
new file mode 100644
index 00000000000000..92ce22a393dfd0
--- /dev/null
+++ b/fs/coda/pioctl.c
@@ -0,0 +1,103 @@
+/*
+ * Pioctl operations for Coda.
+ * Original version: (C) 1996 Peter Braam 
+ * Rewritten for Linux 2.1: (C) 1997 Carnegie Mellon University
+ *
+ * Carnegie Mellon encourages users of this code to contribute improvements
+ * to the Coda project. Contact Peter Braam <coda@cs.cmu.edu>.
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <linux/string.h>
+#define __NO_VERSION__
+#include <linux/module.h>
+#include <asm/uaccess.h>
+
+#include <linux/coda.h>
+#include <linux/coda_linux.h>
+#include <linux/coda_fs_i.h>
+#include <linux/coda_psdev.h>
+
+/* pioctl ops */
+static int coda_ioctl_permission(struct inode *inode, int mask);
+static int coda_pioctl(struct inode * inode, struct file * filp, 
+                       unsigned int cmd, unsigned long user_data);
+
+/* exported from this file */
+struct inode_operations coda_ioctl_inode_operations =
+{
+	permission:	coda_ioctl_permission,
+	setattr:	coda_notify_change,
+};
+
+struct file_operations coda_ioctl_operations = {
+	owner:		THIS_MODULE,
+	ioctl:		coda_pioctl,
+};
+
+/* the coda pioctl inode ops */
+static int coda_ioctl_permission(struct inode *inode, int mask)
+{
+        return 0;
+}
+
+static int coda_pioctl(struct inode * inode, struct file * filp, 
+                       unsigned int cmd, unsigned long user_data)
+{
+	struct nameidata nd;
+        int error;
+	struct PioctlData data;
+        struct inode *target_inode = NULL;
+        struct coda_inode_info *cnp;
+
+        /* get the Pioctl data arguments from user space */
+        if (copy_from_user(&data, (int *)user_data, sizeof(data))) {
+	    return -EINVAL;
+	}
+       
+        /* 
+         * Look up the pathname. Note that the pathname is in 
+         * user memory, and namei takes care of this
+         */
+	CDEBUG(D_PIOCTL, "namei, data.follow = %d\n", 
+	       data.follow);
+        if ( data.follow ) {
+                error = user_path_walk(data.path, &nd);
+	} else {
+	        error = user_path_walk_link(data.path, &nd);
+	}
+		
+	if ( error ) {
+                CDEBUG(D_PIOCTL, "error: lookup fails.\n");
+		return error;
+        } else {
+	        target_inode = nd.dentry->d_inode;
+	}
+	
+	CDEBUG(D_PIOCTL, "target ino: 0x%ld, dev: 0x%x\n",
+	       target_inode->i_ino, target_inode->i_dev);
+
+	/* return if it is not a Coda inode */
+	if ( target_inode->i_sb != inode->i_sb ) {
+		path_release(&nd);
+	        return  -EINVAL;
+	}
+
+	/* now proceed to make the upcall */
+        cnp = ITOC(target_inode);
+
+	error = venus_pioctl(inode->i_sb, &(cnp->c_fid), cmd, &data);
+
+        CDEBUG(D_PIOCTL, "ioctl on inode %ld\n", target_inode->i_ino);
+	CDEBUG(D_DOWNCALL, "dput on ino: %ld, icount %d, dcount %d\n", target_inode->i_ino, 
+	       atomic_read(&target_inode->i_count), atomic_read(&nd.dentry->d_count));
+	path_release(&nd);
+        return error;
+}
+
diff --git a/fs/coda/psdev.c b/fs/coda/psdev.c
new file mode 100644
index 00000000000000..4e4921a0f481d8
--- /dev/null
+++ b/fs/coda/psdev.c
@@ -0,0 +1,446 @@
+/*
+ *      	An implementation of a loadable kernel mode driver providing
+ *		multiple kernel/user space bidirectional communications links.
+ *
+ * 		Author: 	Alan Cox <alan@redhat.com>
+ *
+ *		This program is free software; you can redistribute it and/or
+ *		modify it under the terms of the GNU General Public License
+ *		as published by the Free Software Foundation; either version
+ *		2 of the License, or (at your option) any later version.
+ * 
+ *              Adapted to become the Linux 2.0 Coda pseudo device
+ *              Peter  Braam  <braam@maths.ox.ac.uk> 
+ *              Michael Callahan <mjc@emmy.smith.edu>           
+ *
+ *              Changes for Linux 2.1
+ *              Copyright (c) 1997 Carnegie-Mellon University
+ */
+
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/sched.h>
+#include <linux/lp.h>
+#include <linux/slab.h>
+#include <linux/ioport.h>
+#include <linux/fcntl.h>
+#include <linux/delay.h>
+#include <linux/skbuff.h>
+#include <linux/proc_fs.h>
+#include <linux/devfs_fs_kernel.h>
+#include <linux/vmalloc.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/poll.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/smp_lock.h>
+#include <asm/io.h>
+#include <asm/system.h>
+#include <asm/poll.h>
+#include <asm/uaccess.h>
+
+#include <linux/coda.h>
+#include <linux/coda_linux.h>
+#include <linux/coda_fs_i.h>
+#include <linux/coda_psdev.h>
+#include <linux/coda_proc.h>
+
+#define upc_free(r) kfree(r)
+
+/* 
+ * Coda stuff
+ */
+extern struct file_system_type coda_fs_type;
+
+/* statistics */
+int           coda_hard;         /* allows signals during upcalls */
+unsigned long coda_timeout = 30; /* .. secs, then signals will dequeue */
+
+
+struct venus_comm coda_comms[MAX_CODADEVS];
+kmem_cache_t *cii_cache, *cred_cache, *upc_cache;
+
+/*
+ * Device operations
+ */
+
+static unsigned int coda_psdev_poll(struct file *file, poll_table * wait)
+{
+        struct venus_comm *vcp = (struct venus_comm *) file->private_data;
+	unsigned int mask = POLLOUT | POLLWRNORM;
+
+	poll_wait(file, &vcp->vc_waitq, wait);
+	if (!list_empty(&vcp->vc_pending))
+                mask |= POLLIN | POLLRDNORM;
+
+	return mask;
+}
+
+static int coda_psdev_ioctl(struct inode * inode, struct file * filp, 
+			    unsigned int cmd, unsigned long arg)
+{
+	unsigned int data;
+
+	switch(cmd) {
+	case CIOC_KERNEL_VERSION:
+		data = CODA_KERNEL_VERSION;
+		return put_user(data, (int *) arg);
+	default:
+		return -ENOTTY;
+	}
+
+	return 0;
+}
+
+/*
+ *	Receive a message written by Venus to the psdev
+ */
+ 
+static ssize_t coda_psdev_write(struct file *file, const char *buf, 
+				size_t nbytes, loff_t *off)
+{
+        struct venus_comm *vcp = (struct venus_comm *) file->private_data;
+        struct upc_req *req = NULL;
+        struct upc_req *tmp;
+	struct list_head *lh;
+	struct coda_in_hdr hdr;
+	ssize_t retval = 0, count = 0;
+	int error;
+
+        /* Peek at the opcode, uniquefier */
+	if (copy_from_user(&hdr, buf, 2 * sizeof(u_long)))
+	        return -EFAULT;
+
+	CDEBUG(D_PSDEV, "(process,opc,uniq)=(%d,%ld,%ld), nbytes %ld\n", 
+	       current->pid, hdr.opcode, hdr.unique, (long)nbytes);
+
+        if (DOWNCALL(hdr.opcode)) {
+		struct super_block *sb = NULL;
+                union outputArgs *dcbuf;
+		int size = sizeof(*dcbuf);
+
+		sb = vcp->vc_sb;
+		if ( !sb ) {
+			CDEBUG(D_PSDEV, "coda_psdev_write: downcall, no SB!\n");
+                        count = nbytes;
+                        goto out;
+		}
+		CDEBUG(D_PSDEV, "handling downcall\n");
+
+		if  ( nbytes < sizeof(struct coda_out_hdr) ) {
+		        printk("coda_downcall opc %ld uniq %ld, not enough!\n",
+			       hdr.opcode, hdr.unique);
+			count = nbytes;
+			goto out;
+		}
+		if ( nbytes > size ) {
+		        printk("Coda: downcall opc %ld, uniq %ld, too much!",
+			       hdr.opcode, hdr.unique);
+		        nbytes = size;
+		}
+		CODA_ALLOC(dcbuf, union outputArgs *, nbytes);
+		if (copy_from_user(dcbuf, buf, nbytes)) {
+			CODA_FREE(dcbuf, nbytes);
+			retval = -EFAULT;
+			goto out;
+		}
+
+		/* what downcall errors does Venus handle ? */
+		lock_kernel();
+		error = coda_downcall(hdr.opcode, dcbuf, sb);
+		unlock_kernel();
+
+		CODA_FREE(dcbuf, nbytes);
+		if (error) {
+		        printk("psdev_write: coda_downcall error: %d\n", error);
+			retval = error;
+			goto out;
+		}
+		count = nbytes;
+		goto out;
+	}
+        
+	/* Look for the message on the processing queue. */
+	lock_kernel();
+	list_for_each(lh, &vcp->vc_processing) {
+		tmp = list_entry(lh, struct upc_req , uc_chain);
+		if (tmp->uc_unique == hdr.unique) {
+			req = tmp;
+			list_del(&req->uc_chain);
+			break;
+		}
+	}
+	unlock_kernel();
+
+	if (!req) {
+		printk("psdev_write: msg (%ld, %ld) not found\n", 
+			hdr.opcode, hdr.unique);
+		retval = -ESRCH;
+		goto out;
+	}
+
+	CDEBUG(D_PSDEV,"Eureka: uniq %ld on queue!\n", hdr.unique);
+
+        /* move data into response buffer. */
+	if (req->uc_outSize < nbytes) {
+                printk("psdev_write: too much cnt: %d, cnt: %ld, opc: %ld, uniq: %ld.\n",
+		       req->uc_outSize, (long)nbytes, hdr.opcode, hdr.unique);
+		nbytes = req->uc_outSize; /* don't have more space! */
+	}
+        if (copy_from_user(req->uc_data, buf, nbytes)) {
+		req->uc_flags |= REQ_ABORT;
+		wake_up(&req->uc_sleep);
+		retval = -EFAULT;
+		goto out;
+	}
+
+	/* adjust outsize. is this useful ?? */
+        req->uc_outSize = nbytes;	
+        req->uc_flags |= REQ_WRITE;
+	count = nbytes;
+
+	/* Convert filedescriptor into a file handle */
+	if (req->uc_opcode == CODA_OPEN_BY_FD) {
+		struct coda_open_by_fd_out *outp =
+			(struct coda_open_by_fd_out *)req->uc_data;
+		outp->fh = fget(outp->fd);
+	}
+
+	CDEBUG(D_PSDEV, 
+	       "Found! Count %ld for (opc,uniq)=(%ld,%ld), upc_req at %p\n", 
+	        (long)count, hdr.opcode, hdr.unique, &req);
+
+        wake_up(&req->uc_sleep);
+out:
+        return(count ? count : retval);  
+}
+
+/*
+ *	Read a message from the kernel to Venus
+ */
+
+static ssize_t coda_psdev_read(struct file * file, char * buf, 
+			       size_t nbytes, loff_t *off)
+{
+	DECLARE_WAITQUEUE(wait, current);
+        struct venus_comm *vcp = (struct venus_comm *) file->private_data;
+        struct upc_req *req;
+	ssize_t retval = 0, count = 0;
+
+	if (nbytes == 0)
+		return 0;
+
+	lock_kernel();
+
+	add_wait_queue(&vcp->vc_waitq, &wait);
+	set_current_state(TASK_INTERRUPTIBLE);
+
+	while (list_empty(&vcp->vc_pending)) {
+		if (file->f_flags & O_NONBLOCK) {
+			retval = -EAGAIN;
+			break;
+		}
+		if (signal_pending(current)) {
+			retval = -ERESTARTSYS;
+			break;
+		}
+		schedule();
+	}
+
+	set_current_state(TASK_RUNNING);
+	remove_wait_queue(&vcp->vc_waitq, &wait);
+
+	if (retval)
+		goto out;
+
+	req = list_entry(vcp->vc_pending.next, struct upc_req,uc_chain);
+	list_del(&req->uc_chain);
+
+	/* Move the input args into userspace */
+	count = req->uc_inSize;
+	if (nbytes < req->uc_inSize) {
+                printk ("psdev_read: Venus read %ld bytes of %d in message\n",
+			(long)nbytes, req->uc_inSize);
+		count = nbytes;
+        }
+
+	if (copy_to_user(buf, req->uc_data, count))
+	        retval = -EFAULT;
+        
+	/* If request was not a signal, enqueue and don't free */
+	if (!(req->uc_flags & REQ_ASYNC)) {
+		req->uc_flags |= REQ_READ;
+		list_add(&(req->uc_chain), vcp->vc_processing.prev);
+		goto out;
+	}
+
+	CDEBUG(D_PSDEV, "vcread: signal msg (%d, %d)\n", 
+			req->uc_opcode, req->uc_unique);
+
+	CODA_FREE(req->uc_data, sizeof(struct coda_in_hdr));
+	upc_free(req);
+out:
+	unlock_kernel();
+	return (count ? count : retval);
+}
+
+static int coda_psdev_open(struct inode * inode, struct file * file)
+{
+        struct venus_comm *vcp;
+	int idx;
+
+	lock_kernel();
+	idx = MINOR(inode->i_rdev);
+	if(idx >= MAX_CODADEVS) {
+		unlock_kernel();
+		return -ENODEV;
+	}
+
+	vcp = &coda_comms[idx];
+	if(vcp->vc_inuse) {
+		unlock_kernel();
+		return -EBUSY;
+	}
+	
+	if (!vcp->vc_inuse++) {
+		INIT_LIST_HEAD(&vcp->vc_pending);
+		INIT_LIST_HEAD(&vcp->vc_processing);
+		init_waitqueue_head(&vcp->vc_waitq);
+		vcp->vc_sb = 0;
+		vcp->vc_seq = 0;
+	}
+	
+	file->private_data = vcp;
+
+	CDEBUG(D_PSDEV, "device %i - inuse: %d\n", idx, vcp->vc_inuse);
+
+	unlock_kernel();
+        return 0;
+}
+
+
+static int coda_psdev_release(struct inode * inode, struct file * file)
+{
+        struct venus_comm *vcp = (struct venus_comm *) file->private_data;
+        struct upc_req *req;
+	struct list_head *lh, *next;
+
+	lock_kernel();
+	if ( !vcp->vc_inuse ) {
+		unlock_kernel();
+		printk("psdev_release: Not open.\n");
+		return -1;
+	}
+
+	CDEBUG(D_PSDEV, "psdev_release: inuse %d\n", vcp->vc_inuse);
+	if (--vcp->vc_inuse) {
+		unlock_kernel();
+		return 0;
+	}
+        
+        /* Wakeup clients so they can return. */
+	CDEBUG(D_PSDEV, "wake up pending clients\n");
+	lh = vcp->vc_pending.next;
+	next = lh;
+	while ( (lh = next) != &vcp->vc_pending) {
+		next = lh->next;
+		req = list_entry(lh, struct upc_req, uc_chain);
+		/* Async requests need to be freed here */
+		if (req->uc_flags & REQ_ASYNC) {
+			CODA_FREE(req->uc_data, sizeof(struct coda_in_hdr));
+			upc_free(req);
+			continue;
+		}
+		req->uc_flags |= REQ_ABORT;
+		wake_up(&req->uc_sleep);
+        }
+        
+	lh = &vcp->vc_processing;
+	CDEBUG(D_PSDEV, "wake up processing clients\n");
+	while ( (lh = lh->next) != &vcp->vc_processing) {
+		req = list_entry(lh, struct upc_req, uc_chain);
+		req->uc_flags |= REQ_ABORT;
+	        wake_up(&req->uc_sleep);
+        }
+	CDEBUG(D_PSDEV, "Done.\n");
+
+	unlock_kernel();
+	return 0;
+}
+
+
+static struct file_operations coda_psdev_fops = {
+	owner:		THIS_MODULE,
+	read:		coda_psdev_read,
+	write:		coda_psdev_write,
+	poll:		coda_psdev_poll,
+	ioctl:		coda_psdev_ioctl,
+	open:		coda_psdev_open,
+	release:	coda_psdev_release,
+};
+
+static devfs_handle_t devfs_handle;
+
+static int init_coda_psdev(void)
+{
+	if(devfs_register_chrdev(CODA_PSDEV_MAJOR,"coda_psdev",
+				 &coda_psdev_fops)) {
+              printk(KERN_ERR "coda_psdev: unable to get major %d\n", 
+		     CODA_PSDEV_MAJOR);
+              return -EIO;
+	}
+	devfs_handle = devfs_mk_dir (NULL, "coda", NULL);
+	devfs_register_series (devfs_handle, "%u", MAX_CODADEVS, DEVFS_FL_NONE,
+			       CODA_PSDEV_MAJOR, 0,
+			       S_IFCHR | S_IRUSR | S_IWUSR,
+			       &coda_psdev_fops, NULL);
+
+	coda_sysctl_init();
+
+	return 0;
+}
+
+
+MODULE_AUTHOR("Peter J. Braam <braam@cs.cmu.edu>");
+MODULE_LICENSE("GPL");
+
+static int __init init_coda(void)
+{
+	int status;
+	printk(KERN_INFO "Coda Kernel/Venus communications, v5.3.18, coda@cs.cmu.edu\n");
+
+	status = init_coda_psdev();
+	if ( status ) {
+		printk("Problem (%d) in init_coda_psdev\n", status);
+		return status;
+	}
+	
+	status = register_filesystem(&coda_fs_type);
+	if (status) {
+		printk("coda: failed to register filesystem!\n");
+		devfs_unregister(devfs_handle);
+		devfs_unregister_chrdev(CODA_PSDEV_MAJOR,"coda_psdev");
+		coda_sysctl_clean();
+	}
+	return status;
+}
+
+static void __exit exit_coda(void)
+{
+        int err;
+
+	err = unregister_filesystem(&coda_fs_type);
+        if ( err != 0 ) {
+                printk("coda: failed to unregister filesystem\n");
+        }
+	devfs_unregister(devfs_handle);
+	devfs_unregister_chrdev(CODA_PSDEV_MAJOR, "coda_psdev");
+	coda_sysctl_clean();
+}
+
+module_init(init_coda);
+module_exit(exit_coda);
+
diff --git a/fs/coda/symlink.c b/fs/coda/symlink.c
new file mode 100644
index 00000000000000..f3318b82bd0ea8
--- /dev/null
+++ b/fs/coda/symlink.c
@@ -0,0 +1,55 @@
+/*
+ * Symlink inode operations for Coda filesystem
+ * Original version: (C) 1996 P. Braam and M. Callahan
+ * Rewritten for Linux 2.1. (C) 1997 Carnegie Mellon University
+ * 
+ * Carnegie Mellon encourages users to contribute improvements to
+ * the Coda project. Contact Peter Braam (coda@cs.cmu.edu).
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <linux/smp_lock.h>
+
+#include <linux/coda.h>
+#include <linux/coda_linux.h>
+#include <linux/coda_psdev.h>
+#include <linux/coda_fs_i.h>
+#include <linux/coda_proc.h>
+
+static int coda_symlink_filler(struct file *file, struct page *page)
+{
+	struct inode *inode = page->mapping->host;
+	int error;
+	struct coda_inode_info *cii;
+	unsigned int len = PAGE_SIZE;
+	char *p = kmap(page);
+
+	lock_kernel();
+	cii = ITOC(inode);
+	coda_vfs_stat.follow_link++;
+
+	error = venus_readlink(inode->i_sb, &cii->c_fid, p, &len);
+	unlock_kernel();
+	if (error)
+		goto fail;
+	SetPageUptodate(page);
+	kunmap(page);
+	UnlockPage(page);
+	return 0;
+
+fail:
+	SetPageError(page);
+	kunmap(page);
+	UnlockPage(page);
+	return error;
+}
+
+struct address_space_operations coda_symlink_aops = {
+	readpage:	coda_symlink_filler
+};
diff --git a/fs/coda/sysctl.c b/fs/coda/sysctl.c
new file mode 100644
index 00000000000000..61ec1264ef01f7
--- /dev/null
+++ b/fs/coda/sysctl.c
@@ -0,0 +1,523 @@
+/*
+ * Sysctl operations for Coda filesystem
+ * Original version: (C) 1996 P. Braam and M. Callahan
+ * Rewritten for Linux 2.1. (C) 1997 Carnegie Mellon University
+ * 
+ * Carnegie Mellon encourages users to contribute improvements to
+ * the Coda project. Contact Peter Braam (coda@cs.cmu.edu).
+ * 
+ * CODA operation statistics
+ * (c) March, 1998 Zhanyong Wan <zhanyong.wan@yale.edu>
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/sysctl.h>
+#include <linux/swapctl.h>
+#include <linux/proc_fs.h>
+#include <linux/slab.h>
+#include <linux/stat.h>
+#include <linux/ctype.h>
+#include <asm/bitops.h>
+#include <asm/uaccess.h>
+#include <linux/utsname.h>
+#define __NO_VERSION__
+#include <linux/module.h>
+
+#include <linux/coda.h>
+#include <linux/coda_linux.h>
+#include <linux/coda_fs_i.h>
+#include <linux/coda_psdev.h>
+#include <linux/coda_cache.h>
+#include <linux/coda_proc.h>
+
+static struct ctl_table_header *fs_table_header;
+
+#define FS_CODA         1       /* Coda file system */
+
+#define CODA_DEBUG  	 1	 /* control debugging */
+#define CODA_ENTRY	 2       /* control enter/leave pattern */
+#define CODA_TIMEOUT    3       /* timeout on upcalls to become intrble */
+#define CODA_MC         4       /* use/do not use the access cache */
+#define CODA_HARD       5       /* mount type "hard" or "soft" */
+#define CODA_VFS 	 6       /* vfs statistics */
+#define CODA_UPCALL 	 7       /* upcall statistics */
+#define CODA_PERMISSION	 8       /* permission statistics */
+#define CODA_CACHE_INV 	 9       /* cache invalidation statistics */
+#define CODA_FAKE_STATFS 10	 /* don't query venus for actual cache usage */
+
+static ctl_table coda_table[] = {
+	{CODA_DEBUG, "debug", &coda_debug, sizeof(int), 0644, NULL, &proc_dointvec},
+ 	{CODA_MC, "accesscache", &coda_access_cache, sizeof(int), 0644, NULL, &proc_dointvec}, 
+ 	{CODA_TIMEOUT, "timeout", &coda_timeout, sizeof(int), 0644, NULL, &proc_dointvec},
+ 	{CODA_HARD, "hard", &coda_hard, sizeof(int), 0644, NULL, &proc_dointvec},
+ 	{CODA_VFS, "vfs_stats", NULL, 0, 0644, NULL, &do_reset_coda_vfs_stats},
+ 	{CODA_UPCALL, "upcall_stats", NULL, 0, 0644, NULL, &do_reset_coda_upcall_stats},
+ 	{CODA_PERMISSION, "permission_stats", NULL, 0, 0644, NULL, &do_reset_coda_permission_stats},
+ 	{CODA_CACHE_INV, "cache_inv_stats", NULL, 0, 0644, NULL, &do_reset_coda_cache_inv_stats},
+ 	{CODA_FAKE_STATFS, "fake_statfs", &coda_fake_statfs, sizeof(int), 0600, NULL, &proc_dointvec},
+	{ 0 }
+};
+
+static ctl_table fs_table[] = {
+       {FS_CODA, "coda",    NULL, 0, 0555, coda_table},
+       {0}
+};
+
+struct coda_vfs_stats		coda_vfs_stat;
+struct coda_permission_stats	coda_permission_stat;
+struct coda_cache_inv_stats	coda_cache_inv_stat;
+struct coda_upcall_stats_entry  coda_upcall_stat[CODA_NCALLS];
+struct coda_upcallstats         coda_callstats;
+int                             coda_upcall_timestamping = 0;
+
+/* keep this in sync with coda.h! */
+char *coda_upcall_names[] = {
+	"totals      ",   /*  0 */
+	"-           ",   /*  1 */
+	"root        ",   /*  2 */
+	"open_by_fd  ",   /*  3 */
+	"open        ",   /*  4 */
+	"close       ",   /*  5 */
+	"ioctl       ",   /*  6 */
+	"getattr     ",   /*  7 */
+	"setattr     ",   /*  8 */
+	"access      ",   /*  9 */
+	"lookup      ",   /* 10 */
+	"create      ",   /* 11 */
+	"remove      ",   /* 12 */
+	"link        ",   /* 13 */
+	"rename      ",   /* 14 */
+	"mkdir       ",   /* 15 */
+	"rmdir       ",   /* 16 */
+	"readdir     ",   /* 17 */
+	"symlink     ",   /* 18 */
+	"readlink    ",   /* 19 */
+	"fsync       ",   /* 20 */
+	"-           ",   /* 21 */
+	"vget        ",   /* 22 */
+	"signal      ",   /* 23 */
+	"replace     ",   /* 24 */
+	"flush       ",   /* 25 */
+	"purgeuser   ",   /* 26 */
+	"zapfile     ",   /* 27 */
+	"zapdir      ",   /* 28 */
+	"-           ",   /* 29 */
+	"purgefid    ",   /* 30 */
+	"open_by_path",   /* 31 */
+	"resolve     ",   /* 32 */
+	"reintegrate ",   /* 33 */
+	"statfs      ",   /* 34 */
+	"store       ",   /* 35 */
+	"release     "    /* 36 */
+};
+
+
+void reset_coda_vfs_stats( void )
+{
+	memset( &coda_vfs_stat, 0, sizeof( coda_vfs_stat ) );
+}
+
+void reset_coda_upcall_stats( void )
+{
+	memset( &coda_upcall_stat, 0, sizeof( coda_upcall_stat ) );
+}
+
+void reset_coda_permission_stats( void )
+{
+	memset( &coda_permission_stat, 0, sizeof( coda_permission_stat ) );
+}
+
+void reset_coda_cache_inv_stats( void )
+{
+	memset( &coda_cache_inv_stat, 0, sizeof( coda_cache_inv_stat ) );
+}
+
+
+void do_time_stats( struct coda_upcall_stats_entry * pentry, 
+		    unsigned long runtime )
+{
+	unsigned long time = runtime;	/* time in us */
+	CDEBUG(D_SPECIAL, "time: %ld\n", time);
+
+	if ( pentry->count == 0 ) {
+		pentry->time_sum = pentry->time_squared_sum = 0;
+	}
+	
+	pentry->count++;
+	pentry->time_sum += time;
+	pentry->time_squared_sum += time*time;
+}
+
+
+
+void coda_upcall_stats(int opcode, long unsigned runtime) 
+{
+	struct coda_upcall_stats_entry * pentry;
+	
+	if ( opcode < 0 || opcode > CODA_NCALLS - 1) {
+		printk("Nasty opcode %d passed to coda_upcall_stats\n",
+		       opcode);
+		return;
+	}
+		
+	pentry = &coda_upcall_stat[opcode];
+	do_time_stats(pentry, runtime);
+
+        /* fill in the totals */
+	pentry = &coda_upcall_stat[0];
+	do_time_stats(pentry, runtime);
+
+}
+
+unsigned long get_time_average( const struct coda_upcall_stats_entry * pentry )
+{
+	return ( pentry->count == 0 ) ? 0 : pentry->time_sum / pentry->count;
+}
+
+static inline unsigned long absolute( unsigned long x )
+{
+	return x >= 0 ? x : -x;
+}
+
+static unsigned long sqr_root( unsigned long x )
+{
+	unsigned long y = x, r;
+	int n_bit = 0;
+  
+	if ( x == 0 )
+		return 0;
+	if ( x < 0)
+		x = -x;
+
+	while ( y ) {
+		y >>= 1;
+		n_bit++;
+	}
+  
+	r = 1 << (n_bit/2);
+  
+	while ( 1 ) {
+		r = (r + x/r)/2;
+		if ( r*r <= x && x < (r+1)*(r+1) )
+			break;
+	}
+  
+	return r;
+}
+
+unsigned long get_time_std_deviation( const struct coda_upcall_stats_entry * pentry )
+{
+	unsigned long time_avg;
+  
+	if ( pentry->count <= 1 )
+		return 0;
+  
+	time_avg = get_time_average( pentry );
+
+	return sqr_root( (pentry->time_squared_sum / pentry->count) - 
+			    time_avg * time_avg );
+}
+
+int do_reset_coda_vfs_stats( ctl_table * table, int write, struct file * filp,
+			     void * buffer, size_t * lenp )
+{
+	if ( write ) {
+		reset_coda_vfs_stats();
+
+		filp->f_pos += *lenp;
+	} else {
+		*lenp = 0;
+	}
+
+	return 0;
+}
+
+int do_reset_coda_upcall_stats( ctl_table * table, int write, 
+				struct file * filp, void * buffer, 
+				size_t * lenp )
+{
+	if ( write ) {
+        	if (*lenp > 0) {
+			char c;
+                	if (get_user(c, (char *)buffer))
+			       	return -EFAULT;
+                        coda_upcall_timestamping = (c == '1');
+                }
+		reset_coda_upcall_stats();
+
+		filp->f_pos += *lenp;
+	} else {
+		*lenp = 0;
+	}
+
+	return 0;
+}
+
+int do_reset_coda_permission_stats( ctl_table * table, int write, 
+				    struct file * filp, void * buffer, 
+				    size_t * lenp )
+{
+	if ( write ) {
+		reset_coda_permission_stats();
+
+		filp->f_pos += *lenp;
+	} else {
+		*lenp = 0;
+	}
+
+	return 0;
+}
+
+int do_reset_coda_cache_inv_stats( ctl_table * table, int write, 
+				   struct file * filp, void * buffer, 
+				   size_t * lenp )
+{
+	if ( write ) {
+		reset_coda_cache_inv_stats();
+
+		filp->f_pos += *lenp;
+	} else {
+		*lenp = 0;
+	}
+  
+	return 0;
+}
+
+int coda_vfs_stats_get_info( char * buffer, char ** start, off_t offset,
+			     int length)
+{
+	int len=0;
+	off_t begin;
+	struct coda_vfs_stats * ps = & coda_vfs_stat;
+  
+  /* this works as long as we are below 1024 characters! */
+	len += sprintf( buffer,
+			"Coda VFS statistics\n"
+			"===================\n\n"
+			"File Operations:\n"
+			"\topen\t\t%9d\n"
+			"\tflush\t\t%9d\n"
+			"\trelease\t\t%9d\n"
+			"\tfsync\t\t%9d\n\n"
+			"Dir Operations:\n"
+			"\treaddir\t\t%9d\n\n"
+			"Inode Operations\n"
+			"\tcreate\t\t%9d\n"
+			"\tlookup\t\t%9d\n"
+			"\tlink\t\t%9d\n"
+			"\tunlink\t\t%9d\n"
+			"\tsymlink\t\t%9d\n"
+			"\tmkdir\t\t%9d\n"
+			"\trmdir\t\t%9d\n"
+			"\trename\t\t%9d\n"
+			"\tpermission\t%9d\n",
+
+			/* file operations */
+			ps->open,
+			ps->flush,
+			ps->release,
+			ps->fsync,
+
+			/* dir operations */
+			ps->readdir,
+		  
+			/* inode operations */
+			ps->create,
+			ps->lookup,
+			ps->link,
+			ps->unlink,
+			ps->symlink,
+			ps->mkdir,
+			ps->rmdir,
+			ps->rename,
+			ps->permission); 
+
+	begin = offset;
+	*start = buffer + begin;
+	len -= begin;
+
+	if ( len > length )
+		len = length;
+	if ( len < 0 )
+		len = 0;
+
+	return len;
+}
+
+int coda_upcall_stats_get_info( char * buffer, char ** start, off_t offset,
+				int length)
+{
+	int len=0;
+	int i;
+	off_t begin;
+	off_t pos = 0;
+	char tmpbuf[80];
+	int tmplen = 0;
+
+	/* this works as long as we are below 1024 characters! */
+	if ( offset < 80 ) 
+		len += sprintf( buffer,"%-79s\n",	"Coda upcall statistics");
+	if ( offset < 160) 
+		len += sprintf( buffer + len,"%-79s\n",	"======================");
+	if ( offset < 240) 
+		len += sprintf( buffer + len,"%-79s\n",	"upcall              count       avg time(us)    std deviation(us)");
+	if ( offset < 320) 
+		len += sprintf( buffer + len,"%-79s\n",	"------              -----       ------------    -----------------");
+	pos = 320; 
+	for ( i = 0 ; i < CODA_NCALLS ; i++ ) {
+		tmplen += sprintf(tmpbuf,"%s    %9d       %10ld      %10ld", 
+				  coda_upcall_names[i],
+				  coda_upcall_stat[i].count, 
+				  get_time_average(&coda_upcall_stat[i]),
+				  coda_upcall_stat[i].time_squared_sum);
+		pos += 80;
+		if ( pos < offset ) 
+			continue; 
+		len += sprintf(buffer + len, "%-79s\n", tmpbuf);
+		if ( len >= length ) 
+			break; 
+	}
+  
+	begin = len- (pos - offset);
+	*start = buffer + begin;
+	len -= begin;
+
+	if ( len > length )
+		len = length;
+	if ( len < 0 )
+		len = 0;
+
+	return len;
+}
+
+int coda_permission_stats_get_info( char * buffer, char ** start, off_t offset,
+				    int length)
+{
+	int len=0;
+	off_t begin;
+	struct coda_permission_stats * ps = & coda_permission_stat;
+  
+	/* this works as long as we are below 1024 characters! */
+	len += sprintf( buffer,
+			"Coda permission statistics\n"
+			"==========================\n\n"
+			"count\t\t%9d\n"
+			"hit count\t%9d\n",
+
+			ps->count,
+			ps->hit_count );
+  
+	begin = offset;
+	*start = buffer + begin;
+	len -= begin;
+
+	if ( len > length )
+		len = length;
+	if ( len < 0 )
+		len = 0;
+
+	return len;
+}
+
+int coda_cache_inv_stats_get_info( char * buffer, char ** start, off_t offset,
+				   int length)
+{
+	int len=0;
+	off_t begin;
+	struct coda_cache_inv_stats * ps = & coda_cache_inv_stat;
+  
+	/* this works as long as we are below 1024 characters! */
+	len += sprintf( buffer,
+			"Coda cache invalidation statistics\n"
+			"==================================\n\n"
+			"flush\t\t%9d\n"
+			"purge user\t%9d\n"
+			"zap_dir\t\t%9d\n"
+			"zap_file\t%9d\n"
+			"zap_vnode\t%9d\n"
+			"purge_fid\t%9d\n"
+			"replace\t\t%9d\n",
+			ps->flush,
+			ps->purge_user,
+			ps->zap_dir,
+			ps->zap_file,
+			ps->zap_vnode,
+			ps->purge_fid,
+			ps->replace );
+  
+	begin = offset;
+	*start = buffer + begin;
+	len -= begin;
+
+	if ( len > length )
+		len = length;
+	if ( len < 0 )
+		len = 0;
+
+	return len;
+}
+
+
+#ifdef CONFIG_PROC_FS
+
+/*
+ target directory structure:
+   /proc/fs  (see linux/fs/proc/root.c)
+   /proc/fs/coda
+   /proc/fs/coda/{vfs_stats,
+
+*/
+
+struct proc_dir_entry* proc_fs_coda;
+
+#endif
+
+#define coda_proc_create(name,get_info) \
+	create_proc_info_entry(name, 0, proc_fs_coda, get_info)
+
+void coda_sysctl_init()
+{
+	memset(&coda_callstats, 0, sizeof(coda_callstats));
+	reset_coda_vfs_stats();
+	reset_coda_upcall_stats();
+	reset_coda_permission_stats();
+	reset_coda_cache_inv_stats();
+
+#ifdef CONFIG_PROC_FS
+	proc_fs_coda = proc_mkdir("coda", proc_root_fs);
+	if (proc_fs_coda) {
+		proc_fs_coda->owner = THIS_MODULE;
+		coda_proc_create("vfs_stats", coda_vfs_stats_get_info);
+		coda_proc_create("upcall_stats", coda_upcall_stats_get_info);
+		coda_proc_create("permission_stats", coda_permission_stats_get_info);
+		coda_proc_create("cache_inv_stats", coda_cache_inv_stats_get_info);
+	}
+#endif
+
+#ifdef CONFIG_SYSCTL
+	if ( !fs_table_header )
+		fs_table_header = register_sysctl_table(fs_table, 0);
+#endif 
+}
+
+void coda_sysctl_clean() 
+{
+
+#ifdef CONFIG_SYSCTL
+	if ( fs_table_header ) {
+		unregister_sysctl_table(fs_table_header);
+		fs_table_header = 0;
+	}
+#endif
+
+#if CONFIG_PROC_FS
+        remove_proc_entry("cache_inv_stats", proc_fs_coda);
+        remove_proc_entry("permission_stats", proc_fs_coda);
+        remove_proc_entry("upcall_stats", proc_fs_coda);
+        remove_proc_entry("vfs_stats", proc_fs_coda);
+	remove_proc_entry("coda", proc_root_fs);
+#endif 
+}
diff --git a/fs/coda/upcall.c b/fs/coda/upcall.c
new file mode 100644
index 00000000000000..611a4036be2154
--- /dev/null
+++ b/fs/coda/upcall.c
@@ -0,0 +1,987 @@
+/*
+ * Mostly platform independent upcall operations to Venus:
+ *  -- upcalls
+ *  -- upcall routines
+ *
+ * Linux 2.0 version
+ * Copyright (C) 1996 Peter J. Braam <braam@maths.ox.ac.uk>, 
+ * Michael Callahan <callahan@maths.ox.ac.uk> 
+ * 
+ * Redone for Linux 2.1
+ * Copyright (C) 1997 Carnegie Mellon University
+ *
+ * Carnegie Mellon University encourages users of this code to contribute
+ * improvements to the Coda project. Contact Peter Braam <coda@cs.cmu.edu>.
+ */
+
+#include <asm/system.h>
+#include <asm/signal.h>
+#include <linux/signal.h>
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <linux/string.h>
+#include <asm/uaccess.h>
+#include <linux/vmalloc.h>
+
+#include <linux/coda.h>
+#include <linux/coda_linux.h>
+#include <linux/coda_psdev.h>
+#include <linux/coda_fs_i.h>
+#include <linux/coda_cache.h>
+#include <linux/coda_proc.h> 
+
+#define upc_alloc() kmalloc(sizeof(struct upc_req), GFP_KERNEL)
+#define upc_free(r) kfree(r)
+
+static int coda_upcall(struct coda_sb_info *mntinfo, int inSize, int *outSize, 
+		       union inputArgs *buffer);
+
+static void *alloc_upcall(int opcode, int size)
+{
+	union inputArgs *inp;
+
+	CODA_ALLOC(inp, union inputArgs *, size);
+        if (!inp)
+		return ERR_PTR(-ENOMEM);
+
+        inp->ih.opcode = opcode;
+	inp->ih.pid = current->pid;
+	inp->ih.pgid = current->pgrp;
+	coda_load_creds(&(inp->ih.cred));
+
+	return (void*)inp;
+}
+
+#define UPARG(op)\
+do {\
+	inp = (union inputArgs *)alloc_upcall(op, insize); \
+        if (IS_ERR(inp)) { return PTR_ERR(inp); }\
+        outp = (union outputArgs *)(inp); \
+        outsize = insize; \
+} while (0)
+
+#define INSIZE(tag) sizeof(struct coda_ ## tag ## _in)
+#define OUTSIZE(tag) sizeof(struct coda_ ## tag ## _out)
+#define SIZE(tag)  max_t(unsigned int, INSIZE(tag), OUTSIZE(tag))
+
+
+/* the upcalls */
+int venus_rootfid(struct super_block *sb, ViceFid *fidp)
+{
+        union inputArgs *inp;
+        union outputArgs *outp;
+        int insize, outsize, error;
+
+        insize = SIZE(root);
+        UPARG(CODA_ROOT);
+
+	error = coda_upcall(coda_sbp(sb), insize, &outsize, inp);
+	
+	if (error) {
+	        printk("coda_get_rootfid: error %d\n", error);
+	} else {
+		*fidp = (ViceFid) outp->coda_root.VFid;
+		CDEBUG(D_SUPER, "VolumeId: %lx, VnodeId: %lx.\n",
+		       fidp->Volume, fidp->Vnode);
+	}
+
+	CODA_FREE(inp, insize);
+	return error;
+}
+
+int venus_getattr(struct super_block *sb, struct ViceFid *fid, 
+		     struct coda_vattr *attr) 
+{
+        union inputArgs *inp;
+        union outputArgs *outp;
+        int insize, outsize, error;
+
+        insize = SIZE(getattr); 
+	UPARG(CODA_GETATTR);
+        inp->coda_getattr.VFid = *fid;
+
+        error = coda_upcall(coda_sbp(sb), insize, &outsize, inp);
+	
+	*attr = outp->coda_getattr.attr;
+
+	CODA_FREE(inp, insize);
+        return error;
+}
+
+int venus_setattr(struct super_block *sb, struct ViceFid *fid, 
+		  struct coda_vattr *vattr)
+{
+        union inputArgs *inp;
+        union outputArgs *outp;
+        int insize, outsize, error;
+	
+	insize = SIZE(setattr);
+	UPARG(CODA_SETATTR);
+
+        inp->coda_setattr.VFid = *fid;
+	inp->coda_setattr.attr = *vattr;
+
+        error = coda_upcall(coda_sbp(sb), insize, &outsize, inp);
+
+        CDEBUG(D_SUPER, " result %d\n", error); 
+        CODA_FREE(inp, insize);
+        return error;
+}
+
+int venus_lookup(struct super_block *sb, struct ViceFid *fid, 
+		    const char *name, int length, int * type, 
+		    struct ViceFid *resfid)
+{
+        union inputArgs *inp;
+        union outputArgs *outp;
+        int insize, outsize, error;
+	int offset;
+
+	offset = INSIZE(lookup);
+        insize = max_t(unsigned int, offset + length +1, OUTSIZE(lookup));
+	UPARG(CODA_LOOKUP);
+
+        inp->coda_lookup.VFid = *fid;
+	inp->coda_lookup.name = offset;
+	inp->coda_lookup.flags = CLU_CASE_SENSITIVE;
+        /* send Venus a null terminated string */
+        memcpy((char *)(inp) + offset, name, length);
+        *((char *)inp + offset + length) = '\0';
+
+        error = coda_upcall(coda_sbp(sb), insize, &outsize, inp);
+
+	*resfid = outp->coda_lookup.VFid;
+	*type = outp->coda_lookup.vtype;
+
+	CODA_FREE(inp, insize);
+	return error;
+}
+
+int venus_store(struct super_block *sb, struct ViceFid *fid, int flags,
+                struct coda_cred *cred)
+{
+        union inputArgs *inp;
+        union outputArgs *outp;
+        int insize, outsize, error;
+	
+	insize = SIZE(store);
+	UPARG(CODA_STORE);
+	
+	memcpy(&(inp->ih.cred), cred, sizeof(*cred));
+	
+        inp->coda_store.VFid = *fid;
+        inp->coda_store.flags = flags;
+
+        error = coda_upcall(coda_sbp(sb), insize, &outsize, inp);
+
+	CODA_FREE(inp, insize);
+        return error;
+}
+
+int venus_release(struct super_block *sb, struct ViceFid *fid, int flags)
+{
+        union inputArgs *inp;
+        union outputArgs *outp;
+        int insize, outsize, error;
+	
+	insize = SIZE(release);
+	UPARG(CODA_RELEASE);
+	
+	inp->coda_release.VFid = *fid;
+	inp->coda_release.flags = flags;
+
+	error = coda_upcall(coda_sbp(sb), insize, &outsize, inp);
+
+	CODA_FREE(inp, insize);
+	return error;
+}
+
+int venus_close(struct super_block *sb, struct ViceFid *fid, int flags,
+                struct coda_cred *cred)
+{
+	union inputArgs *inp;
+	union outputArgs *outp;
+	int insize, outsize, error;
+	
+	insize = SIZE(release);
+	UPARG(CODA_CLOSE);
+	
+	memcpy(&(inp->ih.cred), cred, sizeof(*cred));
+	
+        inp->coda_close.VFid = *fid;
+        inp->coda_close.flags = flags;
+
+        error = coda_upcall(coda_sbp(sb), insize, &outsize, inp);
+
+	CODA_FREE(inp, insize);
+        return error;
+}
+
+int venus_open(struct super_block *sb, struct ViceFid *fid,
+		  int flags, struct file **fh)
+{
+        union inputArgs *inp;
+        union outputArgs *outp;
+        int insize, outsize, error;
+       
+	insize = SIZE(open_by_fd);
+	UPARG(CODA_OPEN_BY_FD);
+
+        inp->coda_open.VFid = *fid;
+        inp->coda_open.flags = flags;
+
+        error = coda_upcall(coda_sbp(sb), insize, &outsize, inp);
+
+	*fh = outp->coda_open_by_fd.fh;
+
+	CODA_FREE(inp, insize);
+	return error;
+}	
+
+int venus_mkdir(struct super_block *sb, struct ViceFid *dirfid, 
+		   const char *name, int length, 
+		   struct ViceFid *newfid, struct coda_vattr *attrs)
+{
+        union inputArgs *inp;
+        union outputArgs *outp;
+        int insize, outsize, error;
+        int offset;
+
+	offset = INSIZE(mkdir);
+	insize = max_t(unsigned int, offset + length + 1, OUTSIZE(mkdir));
+	UPARG(CODA_MKDIR);
+
+        inp->coda_mkdir.VFid = *dirfid;
+        inp->coda_mkdir.attr = *attrs;
+	inp->coda_mkdir.name = offset;
+        /* Venus must get null terminated string */
+        memcpy((char *)(inp) + offset, name, length);
+        *((char *)inp + offset + length) = '\0';
+        
+        error = coda_upcall(coda_sbp(sb), insize, &outsize, inp);
+
+	*attrs = outp->coda_mkdir.attr;
+	*newfid = outp->coda_mkdir.VFid;
+
+	CODA_FREE(inp, insize);
+	return error;        
+}
+
+
+int venus_rename(struct super_block *sb, struct ViceFid *old_fid, 
+		 struct ViceFid *new_fid, size_t old_length, 
+		 size_t new_length, const char *old_name, 
+		 const char *new_name)
+{
+	union inputArgs *inp;
+        union outputArgs *outp;
+        int insize, outsize, error; 
+	int offset, s;
+	
+	offset = INSIZE(rename);
+	insize = max_t(unsigned int, offset + new_length + old_length + 8,
+		     OUTSIZE(rename)); 
+ 	UPARG(CODA_RENAME);
+
+        inp->coda_rename.sourceFid = *old_fid;
+        inp->coda_rename.destFid =  *new_fid;
+        inp->coda_rename.srcname = offset;
+
+        /* Venus must receive an null terminated string */
+        s = ( old_length & ~0x3) +4; /* round up to word boundary */
+        memcpy((char *)(inp) + offset, old_name, old_length);
+        *((char *)inp + offset + old_length) = '\0';
+
+        /* another null terminated string for Venus */
+        offset += s;
+        inp->coda_rename.destname = offset;
+        s = ( new_length & ~0x3) +4; /* round up to word boundary */
+        memcpy((char *)(inp) + offset, new_name, new_length);
+        *((char *)inp + offset + new_length) = '\0';
+
+        CDEBUG(D_INODE, "destname in packet: %s\n", 
+              (char *)inp + (int) inp->coda_rename.destname);
+        error = coda_upcall(coda_sbp(sb), insize, &outsize, inp);
+
+	CODA_FREE(inp, insize);
+	return error;
+}
+
+int venus_create(struct super_block *sb, struct ViceFid *dirfid, 
+		    const char *name, int length, int excl, int mode, int rdev,
+		    struct ViceFid *newfid, struct coda_vattr *attrs) 
+{
+        union inputArgs *inp;
+        union outputArgs *outp;
+        int insize, outsize, error;
+        int offset;
+
+        offset = INSIZE(create);
+	insize = max_t(unsigned int, offset + length + 1, OUTSIZE(create));
+	UPARG(CODA_CREATE);
+
+        inp->coda_create.VFid = *dirfid;
+        inp->coda_create.attr.va_mode = mode;
+        inp->coda_create.attr.va_rdev = rdev;
+	inp->coda_create.excl = excl;
+        inp->coda_create.mode = mode;
+        inp->coda_create.name = offset;
+
+        /* Venus must get null terminated string */
+        memcpy((char *)(inp) + offset, name, length);
+        *((char *)inp + offset + length) = '\0';
+                
+        error = coda_upcall(coda_sbp(sb), insize, &outsize, inp);
+
+	*attrs = outp->coda_create.attr;
+	*newfid = outp->coda_create.VFid;
+
+	CODA_FREE(inp, insize);
+	return error;        
+}
+
+int venus_rmdir(struct super_block *sb, struct ViceFid *dirfid, 
+		    const char *name, int length)
+{
+        union inputArgs *inp;
+        union outputArgs *outp;
+        int insize, outsize, error;
+        int offset;
+
+        offset = INSIZE(rmdir);
+	insize = max_t(unsigned int, offset + length + 1, OUTSIZE(rmdir));
+	UPARG(CODA_RMDIR);
+
+        inp->coda_rmdir.VFid = *dirfid;
+        inp->coda_rmdir.name = offset;
+        memcpy((char *)(inp) + offset, name, length);
+	*((char *)inp + offset + length) = '\0';
+        
+        error = coda_upcall(coda_sbp(sb), insize, &outsize, inp);
+
+	CODA_FREE(inp, insize);
+	return error;
+}
+
+int venus_remove(struct super_block *sb, struct ViceFid *dirfid, 
+		    const char *name, int length)
+{
+        union inputArgs *inp;
+        union outputArgs *outp;
+        int error=0, insize, outsize, offset;
+
+        offset = INSIZE(remove);
+	insize = max_t(unsigned int, offset + length + 1, OUTSIZE(remove));
+	UPARG(CODA_REMOVE);
+
+        inp->coda_remove.VFid = *dirfid;
+        inp->coda_remove.name = offset;
+        memcpy((char *)(inp) + offset, name, length);
+	*((char *)inp + offset + length) = '\0';
+        
+        error = coda_upcall(coda_sbp(sb), insize, &outsize, inp);
+
+	CODA_FREE(inp, insize);
+	return error;
+}
+
+int venus_readlink(struct super_block *sb, struct ViceFid *fid, 
+		      char *buffer, int *length)
+{ 
+        union inputArgs *inp;
+        union outputArgs *outp;
+        int insize, outsize, error;
+        int retlen;
+        char *result;
+        
+	insize = max_t(unsigned int,
+		     INSIZE(readlink), OUTSIZE(readlink)+ *length + 1);
+	UPARG(CODA_READLINK);
+
+        inp->coda_readlink.VFid = *fid;
+    
+        error =  coda_upcall(coda_sbp(sb), insize, &outsize, inp);
+	
+	if (! error) {
+                retlen = outp->coda_readlink.count;
+		if ( retlen > *length )
+		        retlen = *length;
+		*length = retlen;
+		result =  (char *)outp + (long)outp->coda_readlink.data;
+		memcpy(buffer, result, retlen);
+		*(buffer + retlen) = '\0';
+	}
+        
+        CDEBUG(D_INODE, " result %d\n",error);
+        CODA_FREE(inp, insize);
+        return error;
+}
+
+
+
+int venus_link(struct super_block *sb, struct ViceFid *fid, 
+		  struct ViceFid *dirfid, const char *name, int len )
+{
+        union inputArgs *inp;
+        union outputArgs *outp;
+        int insize, outsize, error;
+        int offset;
+
+	offset = INSIZE(link);
+	insize = max_t(unsigned int, offset  + len + 1, OUTSIZE(link));
+        UPARG(CODA_LINK);
+
+        inp->coda_link.sourceFid = *fid;
+        inp->coda_link.destFid = *dirfid;
+        inp->coda_link.tname = offset;
+
+        /* make sure strings are null terminated */
+        memcpy((char *)(inp) + offset, name, len);
+        *((char *)inp + offset + len) = '\0';
+        
+        error = coda_upcall(coda_sbp(sb), insize, &outsize, inp);
+
+        CDEBUG(D_INODE, " result %d\n",error);
+	CODA_FREE(inp, insize);
+        return error;
+}
+
+int venus_symlink(struct super_block *sb, struct ViceFid *fid,
+		     const char *name, int len,
+		     const char *symname, int symlen)
+{
+        union inputArgs *inp;
+        union outputArgs *outp;
+        int insize, outsize, error;
+        int offset, s;
+
+        offset = INSIZE(symlink);
+	insize = max_t(unsigned int, offset + len + symlen + 8, OUTSIZE(symlink));
+	UPARG(CODA_SYMLINK);
+        
+        /*        inp->coda_symlink.attr = *tva; XXXXXX */ 
+        inp->coda_symlink.VFid = *fid;
+
+	/* Round up to word boundary and null terminate */
+        inp->coda_symlink.srcname = offset;
+        s = ( symlen  & ~0x3 ) + 4; 
+        memcpy((char *)(inp) + offset, symname, symlen);
+        *((char *)inp + offset + symlen) = '\0';
+        
+	/* Round up to word boundary and null terminate */
+        offset += s;
+        inp->coda_symlink.tname = offset;
+        s = (len & ~0x3) + 4;
+        memcpy((char *)(inp) + offset, name, len);
+        *((char *)inp + offset + len) = '\0';
+
+	error = coda_upcall(coda_sbp(sb), insize, &outsize, inp);
+
+        CDEBUG(D_INODE, " result %d\n",error);
+	CODA_FREE(inp, insize);
+        return error;
+}
+
+int venus_fsync(struct super_block *sb, struct ViceFid *fid)
+{
+        union inputArgs *inp;
+        union outputArgs *outp; 
+	int insize, outsize, error;
+	
+	insize=SIZE(fsync);
+	UPARG(CODA_FSYNC);
+
+        inp->coda_fsync.VFid = *fid;
+        error = coda_upcall(coda_sbp(sb), sizeof(union inputArgs), 
+                            &outsize, inp);
+
+	CODA_FREE(inp, insize);
+	return error;
+}
+
+int venus_access(struct super_block *sb, struct ViceFid *fid, int mask)
+{
+        union inputArgs *inp;
+        union outputArgs *outp; 
+	int insize, outsize, error;
+
+	insize = SIZE(access);
+	UPARG(CODA_ACCESS);
+
+        inp->coda_access.VFid = *fid;
+        inp->coda_access.flags = mask;
+
+	error = coda_upcall(coda_sbp(sb), insize, &outsize, inp);
+
+	CODA_FREE(inp, insize);
+	return error;
+}
+
+
+int venus_pioctl(struct super_block *sb, struct ViceFid *fid,
+		 unsigned int cmd, struct PioctlData *data)
+{
+        union inputArgs *inp;
+        union outputArgs *outp;  
+	int insize, outsize, error;
+	int iocsize;
+
+	insize = VC_MAXMSGSIZE;
+	UPARG(CODA_IOCTL);
+
+        /* build packet for Venus */
+        if (data->vi.in_size > VC_MAXDATASIZE) {
+		error = -EINVAL;
+		goto exit;
+        }
+
+        if (data->vi.out_size > VC_MAXDATASIZE) {
+		error = -EINVAL;
+		goto exit;
+	}
+
+        inp->coda_ioctl.VFid = *fid;
+    
+        /* the cmd field was mutated by increasing its size field to
+         * reflect the path and follow args. We need to subtract that
+         * out before sending the command to Venus.  */
+        inp->coda_ioctl.cmd = (cmd & ~(PIOCPARM_MASK << 16));	
+        iocsize = ((cmd >> 16) & PIOCPARM_MASK) - sizeof(char *) - sizeof(int);
+        inp->coda_ioctl.cmd |= (iocsize & PIOCPARM_MASK) <<	16;	
+    
+        /* in->coda_ioctl.rwflag = flag; */
+        inp->coda_ioctl.len = data->vi.in_size;
+        inp->coda_ioctl.data = (char *)(INSIZE(ioctl));
+     
+        /* get the data out of user space */
+        if ( copy_from_user((char*)inp + (long)inp->coda_ioctl.data,
+			    data->vi.in, data->vi.in_size) ) {
+		error = -EINVAL;
+	        goto exit;
+	}
+
+        error = coda_upcall(coda_sbp(sb), SIZE(ioctl) + data->vi.in_size,
+                            &outsize, inp);
+        
+        if (error) {
+	        printk("coda_pioctl: Venus returns: %d for %s\n", 
+		       error, coda_f2s(fid));
+		goto exit; 
+	}
+
+	if (outsize < (long)outp->coda_ioctl.data + outp->coda_ioctl.len) {
+                CDEBUG(D_FILE, "reply size %d < reply len %ld\n", outsize,
+		       (long)outp->coda_ioctl.data + outp->coda_ioctl.len);
+		error = -EINVAL;
+		goto exit;
+	}
+
+        if (outp->coda_ioctl.len > data->vi.out_size) {
+                CDEBUG(D_FILE, "return len %d > request len %d\n",
+		       outp->coda_ioctl.len, data->vi.out_size);
+		error = -EINVAL;
+		goto exit;
+        }
+
+	/* Copy out the OUT buffer. */
+	error = verify_area(VERIFY_WRITE, data->vi.out, outp->coda_ioctl.len);
+	if ( error ) goto exit;
+
+	if (copy_to_user(data->vi.out, 
+			 (char *)outp + (long)outp->coda_ioctl.data, 
+			 outp->coda_ioctl.len)) {
+	    error = -EINVAL;
+	}
+ exit:
+	CODA_FREE(inp, insize);
+	return error;
+}
+
+int venus_statfs(struct super_block *sb, struct statfs *sfs) 
+{ 
+        union inputArgs *inp;
+        union outputArgs *outp;
+        int insize, outsize, error;
+        
+	insize = max_t(unsigned int, INSIZE(statfs), OUTSIZE(statfs));
+	UPARG(CODA_STATFS);
+
+        error = coda_upcall(coda_sbp(sb), insize, &outsize, inp);
+	
+        if (!error) {
+		sfs->f_blocks = outp->coda_statfs.stat.f_blocks;
+		sfs->f_bfree  = outp->coda_statfs.stat.f_bfree;
+		sfs->f_bavail = outp->coda_statfs.stat.f_bavail;
+		sfs->f_files  = outp->coda_statfs.stat.f_files;
+		sfs->f_ffree  = outp->coda_statfs.stat.f_ffree;
+	} else {
+		printk("coda_statfs: Venus returns: %d\n", error);
+	}
+
+        CDEBUG(D_INODE, " result %d\n",error);
+        CODA_FREE(inp, insize);
+        return error;
+}
+
+/*
+ * coda_upcall and coda_downcall routines.
+ * 
+ */
+
+static inline unsigned long coda_waitfor_upcall(struct upc_req *vmp,
+						struct venus_comm *vcommp)
+{
+	DECLARE_WAITQUEUE(wait, current);
+ 	struct timeval begin = { 0, 0 }, end = { 0, 0 };
+
+	vmp->uc_posttime = jiffies;
+
+	if (coda_upcall_timestamping)
+		do_gettimeofday(&begin);
+
+	add_wait_queue(&vmp->uc_sleep, &wait);
+	for (;;) {
+		if ( !coda_hard && vmp->uc_opcode != CODA_CLOSE ) 
+			set_current_state(TASK_INTERRUPTIBLE);
+		else
+			set_current_state(TASK_UNINTERRUPTIBLE);
+
+                /* venus died */
+                if ( !vcommp->vc_inuse )
+                        break;
+
+		/* got a reply */
+		if ( vmp->uc_flags & ( REQ_WRITE | REQ_ABORT ) )
+			break;
+
+		if ( !coda_hard && vmp->uc_opcode != CODA_CLOSE && signal_pending(current) ) {
+			/* if this process really wants to die, let it go */
+			if ( sigismember(&(current->pending.signal), SIGKILL) ||
+			     sigismember(&(current->pending.signal), SIGINT) )
+				break;
+			/* signal is present: after timeout always return 
+			   really smart idea, probably useless ... */
+			if ( jiffies - vmp->uc_posttime > coda_timeout * HZ )
+				break; 
+		}
+		schedule();
+	}
+	remove_wait_queue(&vmp->uc_sleep, &wait);
+	set_current_state(TASK_RUNNING);
+
+	if (coda_upcall_timestamping && begin.tv_sec != 0) {
+		do_gettimeofday(&end);
+
+		if (end.tv_usec < begin.tv_usec) {
+			end.tv_usec += 1000000; end.tv_sec--;
+		}
+		end.tv_sec  -= begin.tv_sec;
+		end.tv_usec -= begin.tv_usec;
+	}
+
+	CDEBUG(D_SPECIAL, "begin: %ld.%06ld, elapsed: %ld.%06ld\n",
+		begin.tv_sec, (unsigned long)begin.tv_usec,
+		end.tv_sec, (unsigned long)end.tv_usec);
+
+	return 	((end.tv_sec * 1000000) + end.tv_usec);
+}
+
+
+/* 
+ * coda_upcall will return an error in the case of 
+ * failed communication with Venus _or_ will peek at Venus
+ * reply and return Venus' error.
+ *
+ * As venus has 2 types of errors, normal errors (positive) and internal
+ * errors (negative), normal errors are negated, while internal errors
+ * are all mapped to -EINTR, while showing a nice warning message. (jh)
+ * 
+ */
+static int coda_upcall(struct coda_sb_info *sbi, 
+		int inSize, int *outSize, 
+		union inputArgs *buffer) 
+{
+	unsigned long runtime; 
+	struct venus_comm *vcommp;
+	union outputArgs *out;
+	struct upc_req *req;
+	int error = 0;
+
+	vcommp = sbi->sbi_vcomm;
+	if ( !vcommp->vc_inuse ) {
+		printk("No pseudo device in upcall comms at %p\n", vcommp);
+                return -ENXIO;
+	}
+
+	/* Format the request message. */
+	req = upc_alloc();
+	if (!req) {
+		printk("Failed to allocate upc_req structure\n");
+		return -ENOMEM;
+	}
+	req->uc_data = (void *)buffer;
+	req->uc_flags = 0;
+	req->uc_inSize = inSize;
+	req->uc_outSize = *outSize ? *outSize : inSize;
+	req->uc_opcode = ((union inputArgs *)buffer)->ih.opcode;
+	req->uc_unique = ++vcommp->vc_seq;
+	init_waitqueue_head(&req->uc_sleep);
+	
+	/* Fill in the common input args. */
+	((union inputArgs *)buffer)->ih.unique = req->uc_unique;
+
+	/* Append msg to pending queue and poke Venus. */
+	list_add(&(req->uc_chain), vcommp->vc_pending.prev);
+        
+	CDEBUG(D_UPCALL, 
+	       "Proc %d wake Venus for(opc,uniq) =(%d,%d) msg at %p.zzz.\n",
+	       current->pid, req->uc_opcode, req->uc_unique, req);
+
+	wake_up_interruptible(&vcommp->vc_waitq);
+	/* We can be interrupted while we wait for Venus to process
+	 * our request.  If the interrupt occurs before Venus has read
+	 * the request, we dequeue and return. If it occurs after the
+	 * read but before the reply, we dequeue, send a signal
+	 * message, and return. If it occurs after the reply we ignore
+	 * it. In no case do we want to restart the syscall.  If it
+	 * was interrupted by a venus shutdown (psdev_close), return
+	 * ENODEV.  */
+
+	/* Go to sleep.  Wake up on signals only after the timeout. */
+	runtime = coda_waitfor_upcall(req, vcommp);
+	coda_upcall_stats(((union inputArgs *)buffer)->ih.opcode, runtime);
+
+	CDEBUG(D_TIMING, "opc: %d time: %ld uniq: %d size: %d\n",
+	       req->uc_opcode, jiffies - req->uc_posttime, 
+	       req->uc_unique, req->uc_outSize);
+	CDEBUG(D_UPCALL, 
+	       "..process %d woken up by Venus for req at %p, data at %p\n", 
+	       current->pid, req, req->uc_data);
+	if (vcommp->vc_inuse) {      /* i.e. Venus is still alive */
+	    /* Op went through, interrupt or not... */
+	    if (req->uc_flags & REQ_WRITE) {
+		out = (union outputArgs *)req->uc_data;
+		/* here we map positive Venus errors to kernel errors */
+		error = -out->oh.result;
+		CDEBUG(D_UPCALL, 
+		       "upcall: (u,o,r) (%ld, %ld, %ld) out at %p\n", 
+		       out->oh.unique, out->oh.opcode, out->oh.result, out);
+		*outSize = req->uc_outSize;
+		goto exit;
+	    }
+	    if ( !(req->uc_flags & REQ_READ) && signal_pending(current)) { 
+		/* Interrupted before venus read it. */
+		CDEBUG(D_UPCALL, 
+		       "Interrupted before read:(op,un) (%d.%d), flags = %x\n",
+		       req->uc_opcode, req->uc_unique, req->uc_flags);
+		list_del(&(req->uc_chain));
+		/* perhaps the best way to convince the app to
+		   give up? */
+		error = -EINTR;
+		goto exit;
+	    } 
+	    if ( (req->uc_flags & REQ_READ) && signal_pending(current) ) {
+		    /* interrupted after Venus did its read, send signal */
+		    union inputArgs *sig_inputArgs;
+		    struct upc_req *sig_req;
+		    
+		    CDEBUG(D_UPCALL, 
+			   "Sending Venus a signal: op = %d.%d, flags = %x\n",
+			   req->uc_opcode, req->uc_unique, req->uc_flags);
+		    
+		    list_del(&(req->uc_chain));
+		    error = -ENOMEM;
+		    sig_req = upc_alloc();
+		    if (!sig_req) goto exit;
+
+		    CODA_ALLOC((sig_req->uc_data), char *, sizeof(struct coda_in_hdr));
+		    if (!sig_req->uc_data) {
+			upc_free(sig_req);
+			goto exit;
+		    }
+		    
+		    error = -EINTR;
+		    sig_inputArgs = (union inputArgs *)sig_req->uc_data;
+		    sig_inputArgs->ih.opcode = CODA_SIGNAL;
+		    sig_inputArgs->ih.unique = req->uc_unique;
+		    
+		    sig_req->uc_flags = REQ_ASYNC;
+		    sig_req->uc_opcode = sig_inputArgs->ih.opcode;
+		    sig_req->uc_unique = sig_inputArgs->ih.unique;
+		    sig_req->uc_inSize = sizeof(struct coda_in_hdr);
+		    sig_req->uc_outSize = sizeof(struct coda_in_hdr);
+		    CDEBUG(D_UPCALL, 
+			   "coda_upcall: enqueing signal msg (%d, %d)\n",
+			   sig_req->uc_opcode, sig_req->uc_unique);
+		    
+		    /* insert at head of queue! */
+		    list_add(&(sig_req->uc_chain), &vcommp->vc_pending);
+		    wake_up_interruptible(&vcommp->vc_waitq);
+	    } else {
+		    printk("Coda: Strange interruption..\n");
+		    error = -EINTR;
+	    }
+	} else {	/* If venus died i.e. !VC_OPEN(vcommp) */
+	        printk("coda_upcall: Venus dead on (op,un) (%d.%d) flags %d\n",
+		       req->uc_opcode, req->uc_unique, req->uc_flags);
+		error = -ENODEV;
+	}
+
+ exit:
+	upc_free(req);
+	if (error) 
+	        badclstats();
+	return error;
+}
+
+/*  
+    The statements below are part of the Coda opportunistic
+    programming -- taken from the Mach/BSD kernel code for Coda. 
+    You don't get correct semantics by stating what needs to be
+    done without guaranteeing the invariants needed for it to happen.
+    When will be have time to find out what exactly is going on?  (pjb)
+*/
+
+
+/* 
+ * There are 7 cases where cache invalidations occur.  The semantics
+ *  of each is listed here:
+ *
+ * CODA_FLUSH     -- flush all entries from the name cache and the cnode cache.
+ * CODA_PURGEUSER -- flush all entries from the name cache for a specific user
+ *                  This call is a result of token expiration.
+ *
+ * The next arise as the result of callbacks on a file or directory.
+ * CODA_ZAPFILE   -- flush the cached attributes for a file.
+
+ * CODA_ZAPDIR    -- flush the attributes for the dir and
+ *                  force a new lookup for all the children
+                    of this dir.
+
+ *
+ * The next is a result of Venus detecting an inconsistent file.
+ * CODA_PURGEFID  -- flush the attribute for the file
+ *                  purge it and its children from the dcache
+ *
+ * The last  allows Venus to replace local fids with global ones
+ * during reintegration.
+ *
+ * CODA_REPLACE -- replace one ViceFid with another throughout the name cache */
+
+int coda_downcall(int opcode, union outputArgs * out, struct super_block *sb)
+{
+	/* Handle invalidation requests. */
+          if ( !sb || !sb->s_root || !sb->s_root->d_inode) { 
+	          CDEBUG(D_DOWNCALL, "coda_downcall: opcode %d, no sb!\n", opcode);
+		  return 0; 
+	  }
+
+	  switch (opcode) {
+
+	  case CODA_FLUSH : {
+	           clstats(CODA_FLUSH);
+		   CDEBUG(D_DOWNCALL, "CODA_FLUSH\n");
+		   coda_cache_clear_all(sb, NULL);
+		   shrink_dcache_sb(sb);
+		   coda_flag_inode(sb->s_root->d_inode, C_FLUSH);
+		   return(0);
+	  }
+
+	  case CODA_PURGEUSER : {
+	           struct coda_cred *cred = &out->coda_purgeuser.cred;
+		   CDEBUG(D_DOWNCALL, "CODA_PURGEUSER\n");
+		   if ( !cred ) {
+		           printk("PURGEUSER: null cred!\n");
+			   return 0;
+		   }
+		   clstats(CODA_PURGEUSER);
+		   coda_cache_clear_all(sb, cred);
+		   return(0);
+	  }
+
+	  case CODA_ZAPDIR : {
+	          struct inode *inode;
+		  ViceFid *fid = &out->coda_zapdir.CodaFid;
+		  CDEBUG(D_DOWNCALL, "zapdir: fid = %s...\n", coda_f2s(fid));
+		  clstats(CODA_ZAPDIR);
+
+		  inode = coda_fid_to_inode(fid, sb);
+		  if (inode) {
+			  CDEBUG(D_DOWNCALL, "zapdir: inode = %ld children flagged\n", 
+				 inode->i_ino);
+			  coda_flag_inode_children(inode, C_PURGE);
+			  CDEBUG(D_DOWNCALL, "zapdir: inode = %ld cache cleared\n", inode->i_ino);
+	                  coda_flag_inode(inode, C_VATTR);
+			  iput(inode);
+		  } else 
+			  CDEBUG(D_DOWNCALL, "zapdir: no inode\n");
+		  
+		  return(0);
+	  }
+
+	  case CODA_ZAPFILE : {
+	          struct inode *inode;
+		  struct ViceFid *fid = &out->coda_zapfile.CodaFid;
+		  clstats(CODA_ZAPFILE);
+		  CDEBUG(D_DOWNCALL, "zapfile: fid = %s\n", coda_f2s(fid));
+		  inode = coda_fid_to_inode(fid, sb);
+		  if ( inode ) {
+			  CDEBUG(D_DOWNCALL, "zapfile: inode = %ld\n",
+				 inode->i_ino);
+	                  coda_flag_inode(inode, C_VATTR);
+			  iput(inode);
+		  } else 
+			  CDEBUG(D_DOWNCALL, "zapfile: no inode\n");
+		  return 0;
+	  }
+
+	  case CODA_PURGEFID : {
+	          struct inode *inode;
+		  ViceFid *fid = &out->coda_purgefid.CodaFid;
+		  CDEBUG(D_DOWNCALL, "purgefid: fid = %s\n", coda_f2s(fid));
+		  clstats(CODA_PURGEFID);
+		  inode = coda_fid_to_inode(fid, sb);
+		  if ( inode ) { 
+			CDEBUG(D_DOWNCALL, "purgefid: inode = %ld\n",
+			       inode->i_ino);
+			coda_flag_inode_children(inode, C_PURGE);
+
+			/* catch the dentries later if some are still busy */
+			coda_flag_inode(inode, C_PURGE);
+			d_prune_aliases(inode);
+
+			iput(inode);
+		  } else 
+			CDEBUG(D_DOWNCALL, "purgefid: no inode\n");
+		  return 0;
+	  }
+
+	  case CODA_REPLACE : {
+	          struct inode *inode;
+		  ViceFid *oldfid = &out->coda_replace.OldFid;
+		  ViceFid *newfid = &out->coda_replace.NewFid;
+		  clstats(CODA_REPLACE);
+		  CDEBUG(D_DOWNCALL, "CODA_REPLACE\n");
+		  inode = coda_fid_to_inode(oldfid, sb);
+		  if ( inode ) { 
+			  CDEBUG(D_DOWNCALL, "replacefid: inode = %ld\n",
+				 inode->i_ino);
+			  coda_replace_fid(inode, oldfid, newfid);
+			  iput(inode);
+		  }else 
+			  CDEBUG(D_DOWNCALL, "purgefid: no inode\n");
+		  
+		  return 0;
+	  }
+	  }
+	  return 0;
+}
+
diff --git a/fs/cramfs/Makefile b/fs/cramfs/Makefile
new file mode 100644
index 00000000000000..dc8352324da0d5
--- /dev/null
+++ b/fs/cramfs/Makefile
@@ -0,0 +1,13 @@
+#
+# Makefile for the linux cramfs routines.
+#
+
+O_TARGET := cramfs.o
+
+obj-y  := inode.o uncompress.o
+
+obj-m := $(O_TARGET)
+
+CFLAGS_uncompress.o := -I $(TOPDIR)/fs/inflate_fs
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/cramfs/README b/fs/cramfs/README
new file mode 100644
index 00000000000000..445d1c2d764675
--- /dev/null
+++ b/fs/cramfs/README
@@ -0,0 +1,168 @@
+Notes on Filesystem Layout
+--------------------------
+
+These notes describe what mkcramfs generates.  Kernel requirements are
+a bit looser, e.g. it doesn't care if the <file_data> items are
+swapped around (though it does care that directory entries (inodes) in
+a given directory are contiguous, as this is used by readdir).
+
+All data is currently in host-endian format; neither mkcramfs nor the
+kernel ever do swabbing.  (See section `Block Size' below.)
+
+<filesystem>:
+	<superblock>
+	<directory_structure>
+	<data>
+
+<superblock>: struct cramfs_super (see cramfs_fs.h).
+
+<directory_structure>:
+	For each file:
+		struct cramfs_inode (see cramfs_fs.h).
+		Filename.  Not generally null-terminated, but it is
+		 null-padded to a multiple of 4 bytes.
+
+The order of inode traversal is described as "width-first" (not to be
+confused with breadth-first); i.e. like depth-first but listing all of
+a directory's entries before recursing down its subdirectories: the
+same order as `ls -AUR' (but without the /^\..*:$/ directory header
+lines); put another way, the same order as `find -type d -exec
+ls -AU1 {} \;'.
+
+Beginning in 2.4.7, directory entries are sorted.  This optimization
+allows cramfs_lookup to return more quickly when a filename does not
+exist, speeds up user-space directory sorts, etc.
+
+<data>:
+	One <file_data> for each file that's either a symlink or a
+	 regular file of non-zero st_size.
+
+<file_data>:
+	nblocks * <block_pointer>
+	 (where nblocks = (st_size - 1) / blksize + 1)
+	nblocks * <block>
+	padding to multiple of 4 bytes
+
+The i'th <block_pointer> for a file stores the byte offset of the
+*end* of the i'th <block> (i.e. one past the last byte, which is the
+same as the start of the (i+1)'th <block> if there is one).  The first
+<block> immediately follows the last <block_pointer> for the file.
+<block_pointer>s are each 32 bits long.
+
+The order of <file_data>'s is a depth-first descent of the directory
+tree, i.e. the same order as `find -size +0 \( -type f -o -type l \)
+-print'.
+
+
+<block>: The i'th <block> is the output of zlib's compress function
+applied to the i'th blksize-sized chunk of the input data.
+(For the last <block> of the file, the input may of course be smaller.)
+Each <block> may be a different size.  (See <block_pointer> above.)
+<block>s are merely byte-aligned, not generally u32-aligned.
+
+
+Holes
+-----
+
+This kernel supports cramfs holes (i.e. [efficient representation of]
+blocks in uncompressed data consisting entirely of NUL bytes), but by
+default mkcramfs doesn't test for & create holes, since cramfs in
+kernels up to at least 2.3.39 didn't support holes.  Run mkcramfs
+with -z if you want it to create files that can have holes in them.
+
+
+Tools
+-----
+
+The cramfs user-space tools, including mkcramfs and cramfsck, are
+located at <http://sourceforge.net/projects/cramfs/>.
+
+
+Future Development
+==================
+
+Block Size
+----------
+
+(Block size in cramfs refers to the size of input data that is
+compressed at a time.  It's intended to be somewhere around
+PAGE_CACHE_SIZE for cramfs_readpage's convenience.)
+
+The superblock ought to indicate the block size that the fs was
+written for, since comments in <linux/pagemap.h> indicate that
+PAGE_CACHE_SIZE may grow in future (if I interpret the comment
+correctly).
+
+Currently, mkcramfs #define's PAGE_CACHE_SIZE as 4096 and uses that
+for blksize, whereas Linux-2.3.39 uses its PAGE_CACHE_SIZE, which in
+turn is defined as PAGE_SIZE (which can be as large as 32KB on arm).
+This discrepancy is a bug, though it's not clear which should be
+changed.
+
+One option is to change mkcramfs to take its PAGE_CACHE_SIZE from
+<asm/page.h>.  Personally I don't like this option, but it does
+require the least amount of change: just change `#define
+PAGE_CACHE_SIZE (4096)' to `#include <asm/page.h>'.  The disadvantage
+is that the generated cramfs cannot always be shared between different
+kernels, not even necessarily kernels of the same architecture if
+PAGE_CACHE_SIZE is subject to change between kernel versions
+(currently possible with arm and ia64).
+
+The remaining options try to make cramfs more sharable.
+
+One part of that is addressing endianness.  The two options here are
+`always use little-endian' (like ext2fs) or `writer chooses
+endianness; kernel adapts at runtime'.  Little-endian wins because of
+code simplicity and little CPU overhead even on big-endian machines.
+
+The cost of swabbing is changing the code to use the le32_to_cpu
+etc. macros as used by ext2fs.  We don't need to swab the compressed
+data, only the superblock, inodes and block pointers.
+
+
+The other part of making cramfs more sharable is choosing a block
+size.  The options are:
+
+  1. Always 4096 bytes.
+
+  2. Writer chooses blocksize; kernel adapts but rejects blocksize >
+     PAGE_CACHE_SIZE.
+
+  3. Writer chooses blocksize; kernel adapts even to blocksize >
+     PAGE_CACHE_SIZE.
+
+It's easy enough to change the kernel to use a smaller value than
+PAGE_CACHE_SIZE: just make cramfs_readpage read multiple blocks.
+
+The cost of option 1 is that kernels with a larger PAGE_CACHE_SIZE
+value don't get as good compression as they can.
+
+The cost of option 2 relative to option 1 is that the code uses
+variables instead of #define'd constants.  The gain is that people
+with kernels having larger PAGE_CACHE_SIZE can make use of that if
+they don't mind their cramfs being inaccessible to kernels with
+smaller PAGE_CACHE_SIZE values.
+
+Option 3 is easy to implement if we don't mind being CPU-inefficient:
+e.g. get readpage to decompress to a buffer of size MAX_BLKSIZE (which
+must be no larger than 32KB) and discard what it doesn't need.
+Getting readpage to read into all the covered pages is harder.
+
+The main advantage of option 3 over 1, 2, is better compression.  The
+cost is greater complexity.  Probably not worth it, but I hope someone
+will disagree.  (If it is implemented, then I'll re-use that code in
+e2compr.)
+
+
+Another cost of 2 and 3 over 1 is making mkcramfs use a different
+block size, but that just means adding and parsing a -b option.
+
+
+Inode Size
+----------
+
+Given that cramfs will probably be used for CDs etc. as well as just
+silicon ROMs, it might make sense to expand the inode a little from
+its current 12 bytes.  Inodes other than the root inode are followed
+by filename, so the expansion doesn't even have to be a multiple of 4
+bytes.
diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c
new file mode 100644
index 00000000000000..8fb1e70611447f
--- /dev/null
+++ b/fs/cramfs/inode.c
@@ -0,0 +1,465 @@
+/*
+ * Compressed rom filesystem for Linux.
+ *
+ * Copyright (C) 1999 Linus Torvalds.
+ *
+ * This file is released under the GPL.
+ */
+
+/*
+ * These are the VFS interfaces to the compressed rom filesystem.
+ * The actual compression is based on zlib, see the other files.
+ */
+
+#include <linux/module.h>
+#include <linux/fs.h>
+#include <linux/pagemap.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/locks.h>
+#include <linux/blkdev.h>
+#include <linux/cramfs_fs.h>
+#include <asm/semaphore.h>
+
+#include <asm/uaccess.h>
+
+#define CRAMFS_SB_MAGIC u.cramfs_sb.magic
+#define CRAMFS_SB_SIZE u.cramfs_sb.size
+#define CRAMFS_SB_BLOCKS u.cramfs_sb.blocks
+#define CRAMFS_SB_FILES u.cramfs_sb.files
+#define CRAMFS_SB_FLAGS u.cramfs_sb.flags
+
+static struct super_operations cramfs_ops;
+static struct inode_operations cramfs_dir_inode_operations;
+static struct file_operations cramfs_directory_operations;
+static struct address_space_operations cramfs_aops;
+
+static DECLARE_MUTEX(read_mutex);
+
+
+/* These two macros may change in future, to provide better st_ino
+   semantics. */
+#define CRAMINO(x)	((x)->offset?(x)->offset<<2:1)
+#define OFFSET(x)	((x)->i_ino)
+
+static struct inode *get_cramfs_inode(struct super_block *sb, struct cramfs_inode * cramfs_inode)
+{
+	struct inode * inode = new_inode(sb);
+
+	if (inode) {
+		inode->i_mode = cramfs_inode->mode;
+		inode->i_uid = cramfs_inode->uid;
+		inode->i_size = cramfs_inode->size;
+		inode->i_blocks = (cramfs_inode->size - 1) / 512 + 1;
+		inode->i_blksize = PAGE_CACHE_SIZE;
+		inode->i_gid = cramfs_inode->gid;
+		inode->i_ino = CRAMINO(cramfs_inode);
+		/* inode->i_nlink is left 1 - arguably wrong for directories,
+		   but it's the best we can do without reading the directory
+	           contents.  1 yields the right result in GNU find, even
+		   without -noleaf option. */
+		insert_inode_hash(inode);
+		if (S_ISREG(inode->i_mode)) {
+			inode->i_fop = &generic_ro_fops;
+			inode->i_data.a_ops = &cramfs_aops;
+		} else if (S_ISDIR(inode->i_mode)) {
+			inode->i_op = &cramfs_dir_inode_operations;
+			inode->i_fop = &cramfs_directory_operations;
+		} else if (S_ISLNK(inode->i_mode)) {
+			inode->i_op = &page_symlink_inode_operations;
+			inode->i_data.a_ops = &cramfs_aops;
+		} else {
+			inode->i_size = 0;
+			init_special_inode(inode, inode->i_mode, cramfs_inode->size);
+		}
+	}
+	return inode;
+}
+
+/*
+ * We have our own block cache: don't fill up the buffer cache
+ * with the rom-image, because the way the filesystem is set
+ * up the accesses should be fairly regular and cached in the
+ * page cache and dentry tree anyway..
+ *
+ * This also acts as a way to guarantee contiguous areas of up to
+ * BLKS_PER_BUF*PAGE_CACHE_SIZE, so that the caller doesn't need to
+ * worry about end-of-buffer issues even when decompressing a full
+ * page cache.
+ */
+#define READ_BUFFERS (2)
+/* NEXT_BUFFER(): Loop over [0..(READ_BUFFERS-1)]. */
+#define NEXT_BUFFER(_ix) ((_ix) ^ 1)
+
+/*
+ * BLKS_PER_BUF_SHIFT should be at least 2 to allow for "compressed"
+ * data that takes up more space than the original and with unlucky
+ * alignment.
+ */
+#define BLKS_PER_BUF_SHIFT	(2)
+#define BLKS_PER_BUF		(1 << BLKS_PER_BUF_SHIFT)
+#define BUFFER_SIZE		(BLKS_PER_BUF*PAGE_CACHE_SIZE)
+
+static unsigned char read_buffers[READ_BUFFERS][BUFFER_SIZE];
+static unsigned buffer_blocknr[READ_BUFFERS];
+static struct super_block * buffer_dev[READ_BUFFERS];
+static int next_buffer;
+
+/*
+ * Returns a pointer to a buffer containing at least LEN bytes of
+ * filesystem starting at byte offset OFFSET into the filesystem.
+ */
+static void *cramfs_read(struct super_block *sb, unsigned int offset, unsigned int len)
+{
+	struct address_space *mapping = sb->s_bdev->bd_inode->i_mapping;
+	struct page *pages[BLKS_PER_BUF];
+	unsigned i, blocknr, buffer, unread;
+	unsigned long devsize;
+	int major, minor;
+
+	char *data;
+
+	if (!len)
+		return NULL;
+	blocknr = offset >> PAGE_CACHE_SHIFT;
+	offset &= PAGE_CACHE_SIZE - 1;
+
+	/* Check if an existing buffer already has the data.. */
+	for (i = 0; i < READ_BUFFERS; i++) {
+		unsigned int blk_offset;
+
+		if (buffer_dev[i] != sb)
+			continue;
+		if (blocknr < buffer_blocknr[i])
+			continue;
+		blk_offset = (blocknr - buffer_blocknr[i]) << PAGE_CACHE_SHIFT;
+		blk_offset += offset;
+		if (blk_offset + len > BUFFER_SIZE)
+			continue;
+		return read_buffers[i] + blk_offset;
+	}
+
+	devsize = mapping->host->i_size >> PAGE_CACHE_SHIFT;
+	major = MAJOR(sb->s_dev);
+	minor = MINOR(sb->s_dev);
+
+	if (blk_size[major])
+		devsize = blk_size[major][minor] >> 2;
+
+	/* Ok, read in BLKS_PER_BUF pages completely first. */
+	unread = 0;
+	for (i = 0; i < BLKS_PER_BUF; i++) {
+		struct page *page = NULL;
+
+		if (blocknr + i < devsize) {
+			page = read_cache_page(mapping, blocknr + i,
+				(filler_t *)mapping->a_ops->readpage,
+				NULL);
+			/* synchronous error? */
+			if (IS_ERR(page))
+				page = NULL;
+		}
+		pages[i] = page;
+	}
+
+	for (i = 0; i < BLKS_PER_BUF; i++) {
+		struct page *page = pages[i];
+		if (page) {
+			wait_on_page(page);
+			if (!Page_Uptodate(page)) {
+				/* asynchronous error */
+				page_cache_release(page);
+				pages[i] = NULL;
+			}
+		}
+	}
+		
+	buffer = next_buffer;
+	next_buffer = NEXT_BUFFER(buffer);
+	buffer_blocknr[buffer] = blocknr;
+	buffer_dev[buffer] = sb;
+
+	data = read_buffers[buffer];
+	for (i = 0; i < BLKS_PER_BUF; i++) {
+		struct page *page = pages[i];
+		if (page) {
+			memcpy(data, kmap(page), PAGE_CACHE_SIZE);
+			kunmap(page);
+			page_cache_release(page);
+		} else
+			memset(data, 0, PAGE_CACHE_SIZE);
+		data += PAGE_CACHE_SIZE;
+	}
+	return read_buffers[buffer] + offset;
+}
+
+
+static struct super_block * cramfs_read_super(struct super_block *sb, void *data, int silent)
+{
+	int i;
+	struct cramfs_super super;
+	unsigned long root_offset;
+	struct super_block * retval = NULL;
+
+	/* Invalidate the read buffers on mount: think disk change.. */
+	for (i = 0; i < READ_BUFFERS; i++)
+		buffer_blocknr[i] = -1;
+
+	down(&read_mutex);
+	/* Read the first block and get the superblock from it */
+	memcpy(&super, cramfs_read(sb, 0, sizeof(super)), sizeof(super));
+	up(&read_mutex);
+
+	/* Do sanity checks on the superblock */
+	if (super.magic != CRAMFS_MAGIC) {
+		/* check at 512 byte offset */
+		memcpy(&super, cramfs_read(sb, 512, sizeof(super)), sizeof(super));
+		if (super.magic != CRAMFS_MAGIC) {
+			printk(KERN_ERR "cramfs: wrong magic\n");
+			goto out;
+		}
+	}
+
+	/* get feature flags first */
+	if (super.flags & ~CRAMFS_SUPPORTED_FLAGS) {
+		printk(KERN_ERR "cramfs: unsupported filesystem features\n");
+		goto out;
+	}
+
+	/* Check that the root inode is in a sane state */
+	if (!S_ISDIR(super.root.mode)) {
+		printk(KERN_ERR "cramfs: root is not a directory\n");
+		goto out;
+	}
+	root_offset = super.root.offset << 2;
+	if (super.flags & CRAMFS_FLAG_FSID_VERSION_2) {
+		sb->CRAMFS_SB_SIZE=super.size;
+		sb->CRAMFS_SB_BLOCKS=super.fsid.blocks;
+		sb->CRAMFS_SB_FILES=super.fsid.files;
+	} else {
+		sb->CRAMFS_SB_SIZE=1<<28;
+		sb->CRAMFS_SB_BLOCKS=0;
+		sb->CRAMFS_SB_FILES=0;
+	}
+	sb->CRAMFS_SB_MAGIC=super.magic;
+	sb->CRAMFS_SB_FLAGS=super.flags;
+	if (root_offset == 0)
+		printk(KERN_INFO "cramfs: empty filesystem");
+	else if (!(super.flags & CRAMFS_FLAG_SHIFTED_ROOT_OFFSET) &&
+		 ((root_offset != sizeof(struct cramfs_super)) &&
+		  (root_offset != 512 + sizeof(struct cramfs_super))))
+	{
+		printk(KERN_ERR "cramfs: bad root offset %lu\n", root_offset);
+		goto out;
+	}
+
+	/* Set it all up.. */
+	sb->s_op = &cramfs_ops;
+	sb->s_root = d_alloc_root(get_cramfs_inode(sb, &super.root));
+	retval = sb;
+out:
+	return retval;
+}
+
+static int cramfs_statfs(struct super_block *sb, struct statfs *buf)
+{
+	buf->f_type = CRAMFS_MAGIC;
+	buf->f_bsize = PAGE_CACHE_SIZE;
+	buf->f_blocks = sb->CRAMFS_SB_BLOCKS;
+	buf->f_bfree = 0;
+	buf->f_bavail = 0;
+	buf->f_files = sb->CRAMFS_SB_FILES;
+	buf->f_ffree = 0;
+	buf->f_namelen = CRAMFS_MAXPATHLEN;
+	return 0;
+}
+
+/*
+ * Read a cramfs directory entry.
+ */
+static int cramfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
+{
+	struct inode *inode = filp->f_dentry->d_inode;
+	struct super_block *sb = inode->i_sb;
+	unsigned int offset;
+	int copied;
+
+	/* Offset within the thing. */
+	offset = filp->f_pos;
+	if (offset >= inode->i_size)
+		return 0;
+	/* Directory entries are always 4-byte aligned */
+	if (offset & 3)
+		return -EINVAL;
+
+	copied = 0;
+	while (offset < inode->i_size) {
+		struct cramfs_inode *de;
+		unsigned long nextoffset;
+		char *name;
+		int namelen, error;
+
+		down(&read_mutex);
+		de = cramfs_read(sb, OFFSET(inode) + offset, sizeof(*de)+256);
+		up(&read_mutex);
+		name = (char *)(de+1);
+
+		/*
+		 * Namelengths on disk are shifted by two
+		 * and the name padded out to 4-byte boundaries
+		 * with zeroes.
+		 */
+		namelen = de->namelen << 2;
+		nextoffset = offset + sizeof(*de) + namelen;
+		for (;;) {
+			if (!namelen)
+				return -EIO;
+			if (name[namelen-1])
+				break;
+			namelen--;
+		}
+		error = filldir(dirent, name, namelen, offset, CRAMINO(de), de->mode >> 12);
+		if (error)
+			break;
+
+		offset = nextoffset;
+		filp->f_pos = offset;
+		copied++;
+	}
+	return 0;
+}
+
+/*
+ * Lookup and fill in the inode data..
+ */
+static struct dentry * cramfs_lookup(struct inode *dir, struct dentry *dentry)
+{
+	unsigned int offset = 0;
+	int sorted = dir->i_sb->CRAMFS_SB_FLAGS & CRAMFS_FLAG_SORTED_DIRS;
+
+	while (offset < dir->i_size) {
+		struct cramfs_inode *de;
+		char *name;
+		int namelen, retval;
+
+		down(&read_mutex);
+		de = cramfs_read(dir->i_sb, OFFSET(dir) + offset, sizeof(*de)+256);
+		up(&read_mutex);
+		name = (char *)(de+1);
+
+		/* Try to take advantage of sorted directories */
+		if (sorted && (dentry->d_name.name[0] < name[0]))
+			break;
+
+		namelen = de->namelen << 2;
+		offset += sizeof(*de) + namelen;
+
+		/* Quick check that the name is roughly the right length */
+		if (((dentry->d_name.len + 3) & ~3) != namelen)
+			continue;
+
+		for (;;) {
+			if (!namelen)
+				return ERR_PTR(-EIO);
+			if (name[namelen-1])
+				break;
+			namelen--;
+		}
+		if (namelen != dentry->d_name.len)
+			continue;
+		retval = memcmp(dentry->d_name.name, name, namelen);
+		if (retval > 0)
+			continue;
+		if (!retval) {
+			d_add(dentry, get_cramfs_inode(dir->i_sb, de));
+			return NULL;
+		}
+		/* else (retval < 0) */
+		if (sorted)
+			break;
+	}
+	d_add(dentry, NULL);
+	return NULL;
+}
+
+static int cramfs_readpage(struct file *file, struct page * page)
+{
+	struct inode *inode = page->mapping->host;
+	u32 maxblock, bytes_filled;
+	void *pgdata;
+
+	maxblock = (inode->i_size + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+	bytes_filled = 0;
+	if (page->index < maxblock) {
+		struct super_block *sb = inode->i_sb;
+		u32 blkptr_offset = OFFSET(inode) + page->index*4;
+		u32 start_offset, compr_len;
+
+		start_offset = OFFSET(inode) + maxblock*4;
+		down(&read_mutex);
+		if (page->index)
+			start_offset = *(u32 *) cramfs_read(sb, blkptr_offset-4, 4);
+		compr_len = (*(u32 *) cramfs_read(sb, blkptr_offset, 4) - start_offset);
+		up(&read_mutex);
+		pgdata = kmap(page);
+		if (compr_len == 0)
+			; /* hole */
+		else {
+			down(&read_mutex);
+			bytes_filled = cramfs_uncompress_block(pgdata,
+				 PAGE_CACHE_SIZE,
+				 cramfs_read(sb, start_offset, compr_len),
+				 compr_len);
+			up(&read_mutex);
+		}
+	} else
+		pgdata = kmap(page);
+	memset(pgdata + bytes_filled, 0, PAGE_CACHE_SIZE - bytes_filled);
+	kunmap(page);
+	flush_dcache_page(page);
+	SetPageUptodate(page);
+	UnlockPage(page);
+	return 0;
+}
+
+static struct address_space_operations cramfs_aops = {
+	readpage: cramfs_readpage
+};
+
+/*
+ * Our operations:
+ */
+
+/*
+ * A directory can only readdir
+ */
+static struct file_operations cramfs_directory_operations = {
+	read:		generic_read_dir,
+	readdir:	cramfs_readdir,
+};
+
+static struct inode_operations cramfs_dir_inode_operations = {
+	lookup:		cramfs_lookup,
+};
+
+static struct super_operations cramfs_ops = {
+	statfs:		cramfs_statfs,
+};
+
+static DECLARE_FSTYPE_DEV(cramfs_fs_type, "cramfs", cramfs_read_super);
+
+static int __init init_cramfs_fs(void)
+{
+	cramfs_uncompress_init();
+	return register_filesystem(&cramfs_fs_type);
+}
+
+static void __exit exit_cramfs_fs(void)
+{
+	cramfs_uncompress_exit();
+	unregister_filesystem(&cramfs_fs_type);
+}
+
+module_init(init_cramfs_fs)
+module_exit(exit_cramfs_fs)
+MODULE_LICENSE("GPL");
diff --git a/fs/cramfs/uncompress.c b/fs/cramfs/uncompress.c
new file mode 100644
index 00000000000000..5034365b06a862
--- /dev/null
+++ b/fs/cramfs/uncompress.c
@@ -0,0 +1,77 @@
+/*
+ * uncompress.c
+ *
+ * (C) Copyright 1999 Linus Torvalds
+ *
+ * cramfs interfaces to the uncompression library. There's really just
+ * three entrypoints:
+ *
+ *  - cramfs_uncompress_init() - called to initialize the thing.
+ *  - cramfs_uncompress_exit() - tell me when you're done
+ *  - cramfs_uncompress_block() - uncompress a block.
+ *
+ * NOTE NOTE NOTE! The uncompression is entirely single-threaded. We
+ * only have one stream, and we'll initialize it only once even if it
+ * then is used by multiple filesystems.
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/vmalloc.h>
+#include <linux/zlib.h>
+
+static z_stream stream;
+static int initialized;
+
+/* Returns length of decompressed data. */
+int cramfs_uncompress_block(void *dst, int dstlen, void *src, int srclen)
+{
+	int err;
+
+	stream.next_in = src;
+	stream.avail_in = srclen;
+
+	stream.next_out = dst;
+	stream.avail_out = dstlen;
+
+	err = zlib_inflateReset(&stream);
+	if (err != Z_OK) {
+		printk("zlib_inflateReset error %d\n", err);
+		zlib_inflateEnd(&stream);
+		zlib_inflateInit(&stream);
+	}
+
+	err = zlib_inflate(&stream, Z_FINISH);
+	if (err != Z_STREAM_END)
+		goto err;
+	return stream.total_out;
+
+err:
+	printk("Error %d while decompressing!\n", err);
+	printk("%p(%d)->%p(%d)\n", src, srclen, dst, dstlen);
+	return 0;
+}
+
+int cramfs_uncompress_init(void)
+{
+	if (!initialized++) {
+		stream.workspace = vmalloc(zlib_inflate_workspacesize());
+		if ( !stream.workspace ) {
+			initialized = 0;
+			return -ENOMEM;
+		}
+		stream.next_in = NULL;
+		stream.avail_in = 0;
+		zlib_inflateInit(&stream);
+	}
+	return 0;
+}
+
+int cramfs_uncompress_exit(void)
+{
+	if (!--initialized) {
+		zlib_inflateEnd(&stream);
+		vfree(stream.workspace);
+	}
+	return 0;
+}
diff --git a/fs/dcache.c b/fs/dcache.c
new file mode 100644
index 00000000000000..d120eb523ef7b3
--- /dev/null
+++ b/fs/dcache.c
@@ -0,0 +1,1306 @@
+/*
+ * fs/dcache.c
+ *
+ * Complete reimplementation
+ * (C) 1997 Thomas Schoebel-Theuer,
+ * with heavy changes by Linus Torvalds
+ */
+
+/*
+ * Notes on the allocation strategy:
+ *
+ * The dcache is a master of the icache - whenever a dcache entry
+ * exists, the inode will always exist. "iput()" is done either when
+ * the dcache entry is deleted or garbage collected.
+ */
+
+#include <linux/config.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/fs.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/smp_lock.h>
+#include <linux/cache.h>
+#include <linux/module.h>
+
+#include <asm/uaccess.h>
+
+#define DCACHE_PARANOIA 1
+/* #define DCACHE_DEBUG 1 */
+
+spinlock_t dcache_lock __cacheline_aligned_in_smp = SPIN_LOCK_UNLOCKED;
+
+/* Right now the dcache depends on the kernel lock */
+#define check_lock()	if (!kernel_locked()) BUG()
+
+static kmem_cache_t *dentry_cache; 
+
+/*
+ * This is the single most critical data structure when it comes
+ * to the dcache: the hashtable for lookups. Somebody should try
+ * to make this good - I've just made it work.
+ *
+ * This hash-function tries to avoid losing too many bits of hash
+ * information, yet avoid using a prime hash-size or similar.
+ */
+#define D_HASHBITS     d_hash_shift
+#define D_HASHMASK     d_hash_mask
+
+static unsigned int d_hash_mask;
+static unsigned int d_hash_shift;
+static struct list_head *dentry_hashtable;
+static LIST_HEAD(dentry_unused);
+
+/* Statistics gathering. */
+struct dentry_stat_t dentry_stat = {0, 0, 45, 0,};
+
+/*
+ * no dcache_lock, please.  The caller must decrement dentry_stat.nr_dentry
+ * inside dcache_lock.
+ */
+static inline void d_free(struct dentry *dentry)
+{
+	if (dentry->d_op && dentry->d_op->d_release)
+		dentry->d_op->d_release(dentry);
+	if (dname_external(dentry)) 
+		kfree(dentry->d_name.name);
+	kmem_cache_free(dentry_cache, dentry); 
+}
+
+/*
+ * Release the dentry's inode, using the filesystem
+ * d_iput() operation if defined.
+ * Called with dcache_lock held, drops it.
+ */
+static inline void dentry_iput(struct dentry * dentry)
+{
+	struct inode *inode = dentry->d_inode;
+	if (inode) {
+		dentry->d_inode = NULL;
+		list_del_init(&dentry->d_alias);
+		spin_unlock(&dcache_lock);
+		if (dentry->d_op && dentry->d_op->d_iput)
+			dentry->d_op->d_iput(dentry, inode);
+		else
+			iput(inode);
+	} else
+		spin_unlock(&dcache_lock);
+}
+
+/* 
+ * This is dput
+ *
+ * This is complicated by the fact that we do not want to put
+ * dentries that are no longer on any hash chain on the unused
+ * list: we'd much rather just get rid of them immediately.
+ *
+ * However, that implies that we have to traverse the dentry
+ * tree upwards to the parents which might _also_ now be
+ * scheduled for deletion (it may have been only waiting for
+ * its last child to go away).
+ *
+ * This tail recursion is done by hand as we don't want to depend
+ * on the compiler to always get this right (gcc generally doesn't).
+ * Real recursion would eat up our stack space.
+ */
+
+/*
+ * dput - release a dentry
+ * @dentry: dentry to release 
+ *
+ * Release a dentry. This will drop the usage count and if appropriate
+ * call the dentry unlink method as well as removing it from the queues and
+ * releasing its resources. If the parent dentries were scheduled for release
+ * they too may now get deleted.
+ *
+ * no dcache lock, please.
+ */
+
+void dput(struct dentry *dentry)
+{
+	if (!dentry)
+		return;
+
+repeat:
+	if (!atomic_dec_and_lock(&dentry->d_count, &dcache_lock))
+		return;
+
+	/* dput on a free dentry? */
+	if (!list_empty(&dentry->d_lru))
+		BUG();
+	/*
+	 * AV: ->d_delete() is _NOT_ allowed to block now.
+	 */
+	if (dentry->d_op && dentry->d_op->d_delete) {
+		if (dentry->d_op->d_delete(dentry))
+			goto unhash_it;
+	}
+	/* Unreachable? Get rid of it */
+	if (list_empty(&dentry->d_hash))
+		goto kill_it;
+	list_add(&dentry->d_lru, &dentry_unused);
+	dentry_stat.nr_unused++;
+	spin_unlock(&dcache_lock);
+	return;
+
+unhash_it:
+	list_del_init(&dentry->d_hash);
+
+kill_it: {
+		struct dentry *parent;
+		list_del(&dentry->d_child);
+		dentry_stat.nr_dentry--;	/* For d_free, below */
+		/* drops the lock, at that point nobody can reach this dentry */
+		dentry_iput(dentry);
+		parent = dentry->d_parent;
+		d_free(dentry);
+		if (dentry == parent)
+			return;
+		dentry = parent;
+		goto repeat;
+	}
+}
+
+/**
+ * d_invalidate - invalidate a dentry
+ * @dentry: dentry to invalidate
+ *
+ * Try to invalidate the dentry if it turns out to be
+ * possible. If there are other dentries that can be
+ * reached through this one we can't delete it and we
+ * return -EBUSY. On success we return 0.
+ *
+ * no dcache lock.
+ */
+ 
+int d_invalidate(struct dentry * dentry)
+{
+	/*
+	 * If it's already been dropped, return OK.
+	 */
+	spin_lock(&dcache_lock);
+	if (list_empty(&dentry->d_hash)) {
+		spin_unlock(&dcache_lock);
+		return 0;
+	}
+	/*
+	 * Check whether to do a partial shrink_dcache
+	 * to get rid of unused child entries.
+	 */
+	if (!list_empty(&dentry->d_subdirs)) {
+		spin_unlock(&dcache_lock);
+		shrink_dcache_parent(dentry);
+		spin_lock(&dcache_lock);
+	}
+
+	/*
+	 * Somebody else still using it?
+	 *
+	 * If it's a directory, we can't drop it
+	 * for fear of somebody re-populating it
+	 * with children (even though dropping it
+	 * would make it unreachable from the root,
+	 * we might still populate it if it was a
+	 * working directory or similar).
+	 */
+	if (atomic_read(&dentry->d_count) > 1) {
+		if (dentry->d_inode && S_ISDIR(dentry->d_inode->i_mode)) {
+			spin_unlock(&dcache_lock);
+			return -EBUSY;
+		}
+	}
+
+	list_del_init(&dentry->d_hash);
+	spin_unlock(&dcache_lock);
+	return 0;
+}
+
+/* This should be called _only_ with dcache_lock held */
+
+static inline struct dentry * __dget_locked(struct dentry *dentry)
+{
+	atomic_inc(&dentry->d_count);
+	if (atomic_read(&dentry->d_count) == 1) {
+		dentry_stat.nr_unused--;
+		list_del_init(&dentry->d_lru);
+	}
+	return dentry;
+}
+
+struct dentry * dget_locked(struct dentry *dentry)
+{
+	return __dget_locked(dentry);
+}
+
+/**
+ * d_find_alias - grab a hashed alias of inode
+ * @inode: inode in question
+ *
+ * If inode has a hashed alias - acquire the reference to alias and
+ * return it. Otherwise return NULL. Notice that if inode is a directory
+ * there can be only one alias and it can be unhashed only if it has
+ * no children.
+ */
+
+struct dentry * d_find_alias(struct inode *inode)
+{
+	struct list_head *head, *next, *tmp;
+	struct dentry *alias;
+
+	spin_lock(&dcache_lock);
+	head = &inode->i_dentry;
+	next = inode->i_dentry.next;
+	while (next != head) {
+		tmp = next;
+		next = tmp->next;
+		alias = list_entry(tmp, struct dentry, d_alias);
+		if (!list_empty(&alias->d_hash)) {
+			__dget_locked(alias);
+			spin_unlock(&dcache_lock);
+			return alias;
+		}
+	}
+	spin_unlock(&dcache_lock);
+	return NULL;
+}
+
+/*
+ *	Try to kill dentries associated with this inode.
+ * WARNING: you must own a reference to inode.
+ */
+void d_prune_aliases(struct inode *inode)
+{
+	struct list_head *tmp, *head = &inode->i_dentry;
+restart:
+	spin_lock(&dcache_lock);
+	tmp = head;
+	while ((tmp = tmp->next) != head) {
+		struct dentry *dentry = list_entry(tmp, struct dentry, d_alias);
+		if (!atomic_read(&dentry->d_count)) {
+			__dget_locked(dentry);
+			spin_unlock(&dcache_lock);
+			d_drop(dentry);
+			dput(dentry);
+			goto restart;
+		}
+	}
+	spin_unlock(&dcache_lock);
+}
+
+/*
+ * Throw away a dentry - free the inode, dput the parent.
+ * This requires that the LRU list has already been
+ * removed.
+ * Called with dcache_lock, drops it and then regains.
+ */
+static inline void prune_one_dentry(struct dentry * dentry)
+{
+	struct dentry * parent;
+
+	list_del_init(&dentry->d_hash);
+	list_del(&dentry->d_child);
+	dentry_stat.nr_dentry--;	/* For d_free, below */
+	dentry_iput(dentry);
+	parent = dentry->d_parent;
+	d_free(dentry);
+	if (parent != dentry)
+		dput(parent);
+	spin_lock(&dcache_lock);
+}
+
+/**
+ * prune_dcache - shrink the dcache
+ * @count: number of entries to try and free
+ *
+ * Shrink the dcache. This is done when we need
+ * more memory, or simply when we need to unmount
+ * something (at which point we need to unuse
+ * all dentries).
+ *
+ * This function may fail to free any resources if
+ * all the dentries are in use.
+ */
+ 
+void prune_dcache(int count)
+{
+	spin_lock(&dcache_lock);
+	for (;;) {
+		struct dentry *dentry;
+		struct list_head *tmp;
+
+		tmp = dentry_unused.prev;
+
+		if (tmp == &dentry_unused)
+			break;
+		list_del_init(tmp);
+		dentry = list_entry(tmp, struct dentry, d_lru);
+
+		/* If the dentry was recently referenced, don't free it. */
+		if (dentry->d_vfs_flags & DCACHE_REFERENCED) {
+			dentry->d_vfs_flags &= ~DCACHE_REFERENCED;
+			list_add(&dentry->d_lru, &dentry_unused);
+			continue;
+		}
+		dentry_stat.nr_unused--;
+
+		/* Unused dentry with a count? */
+		if (atomic_read(&dentry->d_count))
+			BUG();
+
+		prune_one_dentry(dentry);
+		if (!--count)
+			break;
+	}
+	spin_unlock(&dcache_lock);
+}
+
+/*
+ * Shrink the dcache for the specified super block.
+ * This allows us to unmount a device without disturbing
+ * the dcache for the other devices.
+ *
+ * This implementation makes just two traversals of the
+ * unused list.  On the first pass we move the selected
+ * dentries to the most recent end, and on the second
+ * pass we free them.  The second pass must restart after
+ * each dput(), but since the target dentries are all at
+ * the end, it's really just a single traversal.
+ */
+
+/**
+ * shrink_dcache_sb - shrink dcache for a superblock
+ * @sb: superblock
+ *
+ * Shrink the dcache for the specified super block. This
+ * is used to free the dcache before unmounting a file
+ * system
+ */
+
+void shrink_dcache_sb(struct super_block * sb)
+{
+	struct list_head *tmp, *next;
+	struct dentry *dentry;
+
+	/*
+	 * Pass one ... move the dentries for the specified
+	 * superblock to the most recent end of the unused list.
+	 */
+	spin_lock(&dcache_lock);
+	next = dentry_unused.next;
+	while (next != &dentry_unused) {
+		tmp = next;
+		next = tmp->next;
+		dentry = list_entry(tmp, struct dentry, d_lru);
+		if (dentry->d_sb != sb)
+			continue;
+		list_del(tmp);
+		list_add(tmp, &dentry_unused);
+	}
+
+	/*
+	 * Pass two ... free the dentries for this superblock.
+	 */
+repeat:
+	next = dentry_unused.next;
+	while (next != &dentry_unused) {
+		tmp = next;
+		next = tmp->next;
+		dentry = list_entry(tmp, struct dentry, d_lru);
+		if (dentry->d_sb != sb)
+			continue;
+		if (atomic_read(&dentry->d_count))
+			continue;
+		dentry_stat.nr_unused--;
+		list_del_init(tmp);
+		prune_one_dentry(dentry);
+		goto repeat;
+	}
+	spin_unlock(&dcache_lock);
+}
+
+/*
+ * Search for at least 1 mount point in the dentry's subdirs.
+ * We descend to the next level whenever the d_subdirs
+ * list is non-empty and continue searching.
+ */
+ 
+/**
+ * have_submounts - check for mounts over a dentry
+ * @parent: dentry to check.
+ *
+ * Return true if the parent or its subdirectories contain
+ * a mount point
+ */
+ 
+int have_submounts(struct dentry *parent)
+{
+	struct dentry *this_parent = parent;
+	struct list_head *next;
+
+	spin_lock(&dcache_lock);
+	if (d_mountpoint(parent))
+		goto positive;
+repeat:
+	next = this_parent->d_subdirs.next;
+resume:
+	while (next != &this_parent->d_subdirs) {
+		struct list_head *tmp = next;
+		struct dentry *dentry = list_entry(tmp, struct dentry, d_child);
+		next = tmp->next;
+		/* Have we found a mount point ? */
+		if (d_mountpoint(dentry))
+			goto positive;
+		if (!list_empty(&dentry->d_subdirs)) {
+			this_parent = dentry;
+			goto repeat;
+		}
+	}
+	/*
+	 * All done at this level ... ascend and resume the search.
+	 */
+	if (this_parent != parent) {
+		next = this_parent->d_child.next; 
+		this_parent = this_parent->d_parent;
+		goto resume;
+	}
+	spin_unlock(&dcache_lock);
+	return 0; /* No mount points found in tree */
+positive:
+	spin_unlock(&dcache_lock);
+	return 1;
+}
+
+/*
+ * Search the dentry child list for the specified parent,
+ * and move any unused dentries to the end of the unused
+ * list for prune_dcache(). We descend to the next level
+ * whenever the d_subdirs list is non-empty and continue
+ * searching.
+ */
+static int select_parent(struct dentry * parent)
+{
+	struct dentry *this_parent = parent;
+	struct list_head *next;
+	int found = 0;
+
+	spin_lock(&dcache_lock);
+repeat:
+	next = this_parent->d_subdirs.next;
+resume:
+	while (next != &this_parent->d_subdirs) {
+		struct list_head *tmp = next;
+		struct dentry *dentry = list_entry(tmp, struct dentry, d_child);
+		next = tmp->next;
+		if (!atomic_read(&dentry->d_count)) {
+			list_del(&dentry->d_lru);
+			list_add(&dentry->d_lru, dentry_unused.prev);
+			found++;
+		}
+		/*
+		 * Descend a level if the d_subdirs list is non-empty.
+		 */
+		if (!list_empty(&dentry->d_subdirs)) {
+			this_parent = dentry;
+#ifdef DCACHE_DEBUG
+printk(KERN_DEBUG "select_parent: descending to %s/%s, found=%d\n",
+dentry->d_parent->d_name.name, dentry->d_name.name, found);
+#endif
+			goto repeat;
+		}
+	}
+	/*
+	 * All done at this level ... ascend and resume the search.
+	 */
+	if (this_parent != parent) {
+		next = this_parent->d_child.next; 
+		this_parent = this_parent->d_parent;
+#ifdef DCACHE_DEBUG
+printk(KERN_DEBUG "select_parent: ascending to %s/%s, found=%d\n",
+this_parent->d_parent->d_name.name, this_parent->d_name.name, found);
+#endif
+		goto resume;
+	}
+	spin_unlock(&dcache_lock);
+	return found;
+}
+
+/**
+ * shrink_dcache_parent - prune dcache
+ * @parent: parent of entries to prune
+ *
+ * Prune the dcache to remove unused children of the parent dentry.
+ */
+ 
+void shrink_dcache_parent(struct dentry * parent)
+{
+	int found;
+
+	while ((found = select_parent(parent)) != 0)
+		prune_dcache(found);
+}
+
+/*
+ * This is called from kswapd when we think we need some
+ * more memory, but aren't really sure how much. So we
+ * carefully try to free a _bit_ of our dcache, but not
+ * too much.
+ *
+ * Priority:
+ *   0 - very urgent: shrink everything
+ *  ...
+ *   6 - base-level: try to shrink a bit.
+ */
+int shrink_dcache_memory(int priority, unsigned int gfp_mask)
+{
+	int count = 0;
+
+	/*
+	 * Nasty deadlock avoidance.
+	 *
+	 * ext2_new_block->getblk->GFP->shrink_dcache_memory->prune_dcache->
+	 * prune_one_dentry->dput->dentry_iput->iput->inode->i_sb->s_op->
+	 * put_inode->ext2_discard_prealloc->ext2_free_blocks->lock_super->
+	 * DEADLOCK.
+	 *
+	 * We should make sure we don't hold the superblock lock over
+	 * block allocations, but for now:
+	 */
+	if (!(gfp_mask & __GFP_FS))
+		return 0;
+
+	count = dentry_stat.nr_unused / priority;
+
+	prune_dcache(count);
+	return kmem_cache_shrink(dentry_cache);
+}
+
+#define NAME_ALLOC_LEN(len)	((len+16) & ~15)
+
+/**
+ * d_alloc	-	allocate a dcache entry
+ * @parent: parent of entry to allocate
+ * @name: qstr of the name
+ *
+ * Allocates a dentry. It returns %NULL if there is insufficient memory
+ * available. On a success the dentry is returned. The name passed in is
+ * copied and the copy passed in may be reused after this call.
+ */
+ 
+struct dentry * d_alloc(struct dentry * parent, const struct qstr *name)
+{
+	char * str;
+	struct dentry *dentry;
+
+	dentry = kmem_cache_alloc(dentry_cache, GFP_KERNEL); 
+	if (!dentry)
+		return NULL;
+
+	if (name->len > DNAME_INLINE_LEN-1) {
+		str = kmalloc(NAME_ALLOC_LEN(name->len), GFP_KERNEL);
+		if (!str) {
+			kmem_cache_free(dentry_cache, dentry); 
+			return NULL;
+		}
+	} else
+		str = dentry->d_iname; 
+
+	memcpy(str, name->name, name->len);
+	str[name->len] = 0;
+
+	atomic_set(&dentry->d_count, 1);
+	dentry->d_vfs_flags = 0;
+	dentry->d_flags = 0;
+	dentry->d_inode = NULL;
+	dentry->d_parent = NULL;
+	dentry->d_sb = NULL;
+	dentry->d_name.name = str;
+	dentry->d_name.len = name->len;
+	dentry->d_name.hash = name->hash;
+	dentry->d_op = NULL;
+	dentry->d_fsdata = NULL;
+	dentry->d_mounted = 0;
+	INIT_LIST_HEAD(&dentry->d_hash);
+	INIT_LIST_HEAD(&dentry->d_lru);
+	INIT_LIST_HEAD(&dentry->d_subdirs);
+	INIT_LIST_HEAD(&dentry->d_alias);
+	if (parent) {
+		dentry->d_parent = dget(parent);
+		dentry->d_sb = parent->d_sb;
+	} else
+		INIT_LIST_HEAD(&dentry->d_child);
+
+	spin_lock(&dcache_lock);
+	if (parent)
+		list_add(&dentry->d_child, &parent->d_subdirs);
+	dentry_stat.nr_dentry++;
+	spin_unlock(&dcache_lock);
+
+	return dentry;
+}
+
+/**
+ * d_instantiate - fill in inode information for a dentry
+ * @entry: dentry to complete
+ * @inode: inode to attach to this dentry
+ *
+ * Fill in inode information in the entry.
+ *
+ * This turns negative dentries into productive full members
+ * of society.
+ *
+ * NOTE! This assumes that the inode count has been incremented
+ * (or otherwise set) by the caller to indicate that it is now
+ * in use by the dcache.
+ */
+ 
+void d_instantiate(struct dentry *entry, struct inode * inode)
+{
+	if (!list_empty(&entry->d_alias)) BUG();
+	spin_lock(&dcache_lock);
+	if (inode)
+		list_add(&entry->d_alias, &inode->i_dentry);
+	entry->d_inode = inode;
+	spin_unlock(&dcache_lock);
+}
+
+/**
+ * d_alloc_root - allocate root dentry
+ * @root_inode: inode to allocate the root for
+ *
+ * Allocate a root ("/") dentry for the inode given. The inode is
+ * instantiated and returned. %NULL is returned if there is insufficient
+ * memory or the inode passed is %NULL.
+ */
+ 
+struct dentry * d_alloc_root(struct inode * root_inode)
+{
+	struct dentry *res = NULL;
+
+	if (root_inode) {
+		res = d_alloc(NULL, &(const struct qstr) { "/", 1, 0 });
+		if (res) {
+			res->d_sb = root_inode->i_sb;
+			res->d_parent = res;
+			d_instantiate(res, root_inode);
+		}
+	}
+	return res;
+}
+
+static inline struct list_head * d_hash(struct dentry * parent, unsigned long hash)
+{
+	hash += (unsigned long) parent / L1_CACHE_BYTES;
+	hash = hash ^ (hash >> D_HASHBITS);
+	return dentry_hashtable + (hash & D_HASHMASK);
+}
+
+/**
+ * d_lookup - search for a dentry
+ * @parent: parent dentry
+ * @name: qstr of name we wish to find
+ *
+ * Searches the children of the parent dentry for the name in question. If
+ * the dentry is found its reference count is incremented and the dentry
+ * is returned. The caller must use d_put to free the entry when it has
+ * finished using it. %NULL is returned on failure.
+ */
+ 
+struct dentry * d_lookup(struct dentry * parent, struct qstr * name)
+{
+	unsigned int len = name->len;
+	unsigned int hash = name->hash;
+	const unsigned char *str = name->name;
+	struct list_head *head = d_hash(parent,hash);
+	struct list_head *tmp;
+
+	spin_lock(&dcache_lock);
+	tmp = head->next;
+	for (;;) {
+		struct dentry * dentry = list_entry(tmp, struct dentry, d_hash);
+		if (tmp == head)
+			break;
+		tmp = tmp->next;
+		if (dentry->d_name.hash != hash)
+			continue;
+		if (dentry->d_parent != parent)
+			continue;
+		if (parent->d_op && parent->d_op->d_compare) {
+			if (parent->d_op->d_compare(parent, &dentry->d_name, name))
+				continue;
+		} else {
+			if (dentry->d_name.len != len)
+				continue;
+			if (memcmp(dentry->d_name.name, str, len))
+				continue;
+		}
+		__dget_locked(dentry);
+		dentry->d_vfs_flags |= DCACHE_REFERENCED;
+		spin_unlock(&dcache_lock);
+		return dentry;
+	}
+	spin_unlock(&dcache_lock);
+	return NULL;
+}
+
+/**
+ * d_validate - verify dentry provided from insecure source
+ * @dentry: The dentry alleged to be valid child of @dparent
+ * @dparent: The parent dentry (known to be valid)
+ * @hash: Hash of the dentry
+ * @len: Length of the name
+ *
+ * An insecure source has sent us a dentry, here we verify it and dget() it.
+ * This is used by ncpfs in its readdir implementation.
+ * Zero is returned in the dentry is invalid.
+ */
+ 
+int d_validate(struct dentry *dentry, struct dentry *dparent)
+{
+	unsigned long dent_addr = (unsigned long) dentry;
+	unsigned long min_addr = PAGE_OFFSET;
+	unsigned long align_mask = 0x0F;
+	struct list_head *base, *lhp;
+
+	if (dent_addr < min_addr)
+		goto out;
+	if (dent_addr > (unsigned long)high_memory - sizeof(struct dentry))
+		goto out;
+	if (dent_addr & align_mask)
+		goto out;
+	if ((!kern_addr_valid(dent_addr)) || (!kern_addr_valid(dent_addr -1 +
+						sizeof(struct dentry))))
+		goto out;
+
+	if (dentry->d_parent != dparent)
+		goto out;
+
+	spin_lock(&dcache_lock);
+	lhp = base = d_hash(dparent, dentry->d_name.hash);
+	while ((lhp = lhp->next) != base) {
+		if (dentry == list_entry(lhp, struct dentry, d_hash)) {
+			__dget_locked(dentry);
+			spin_unlock(&dcache_lock);
+			return 1;
+		}
+	}
+	spin_unlock(&dcache_lock);
+out:
+	return 0;
+}
+
+/*
+ * When a file is deleted, we have two options:
+ * - turn this dentry into a negative dentry
+ * - unhash this dentry and free it.
+ *
+ * Usually, we want to just turn this into
+ * a negative dentry, but if anybody else is
+ * currently using the dentry or the inode
+ * we can't do that and we fall back on removing
+ * it from the hash queues and waiting for
+ * it to be deleted later when it has no users
+ */
+ 
+/**
+ * d_delete - delete a dentry
+ * @dentry: The dentry to delete
+ *
+ * Turn the dentry into a negative dentry if possible, otherwise
+ * remove it from the hash queues so it can be deleted later
+ */
+ 
+void d_delete(struct dentry * dentry)
+{
+	/*
+	 * Are we the only user?
+	 */
+	spin_lock(&dcache_lock);
+	if (atomic_read(&dentry->d_count) == 1) {
+		dentry_iput(dentry);
+		return;
+	}
+	spin_unlock(&dcache_lock);
+
+	/*
+	 * If not, just drop the dentry and let dput
+	 * pick up the tab..
+	 */
+	d_drop(dentry);
+}
+
+/**
+ * d_rehash	- add an entry back to the hash
+ * @entry: dentry to add to the hash
+ *
+ * Adds a dentry to the hash according to its name.
+ */
+ 
+void d_rehash(struct dentry * entry)
+{
+	struct list_head *list = d_hash(entry->d_parent, entry->d_name.hash);
+	if (!list_empty(&entry->d_hash)) BUG();
+	spin_lock(&dcache_lock);
+	list_add(&entry->d_hash, list);
+	spin_unlock(&dcache_lock);
+}
+
+#define do_switch(x,y) do { \
+	__typeof__ (x) __tmp = x; \
+	x = y; y = __tmp; } while (0)
+
+/*
+ * When switching names, the actual string doesn't strictly have to
+ * be preserved in the target - because we're dropping the target
+ * anyway. As such, we can just do a simple memcpy() to copy over
+ * the new name before we switch.
+ *
+ * Note that we have to be a lot more careful about getting the hash
+ * switched - we have to switch the hash value properly even if it
+ * then no longer matches the actual (corrupted) string of the target.
+ * The hash value has to match the hash queue that the dentry is on..
+ */
+static inline void switch_names(struct dentry * dentry, struct dentry * target)
+{
+	const unsigned char *old_name, *new_name;
+
+	check_lock();
+	memcpy(dentry->d_iname, target->d_iname, DNAME_INLINE_LEN); 
+	old_name = target->d_name.name;
+	new_name = dentry->d_name.name;
+	if (old_name == target->d_iname)
+		old_name = dentry->d_iname;
+	if (new_name == dentry->d_iname)
+		new_name = target->d_iname;
+	target->d_name.name = new_name;
+	dentry->d_name.name = old_name;
+}
+
+/*
+ * We cannibalize "target" when moving dentry on top of it,
+ * because it's going to be thrown away anyway. We could be more
+ * polite about it, though.
+ *
+ * This forceful removal will result in ugly /proc output if
+ * somebody holds a file open that got deleted due to a rename.
+ * We could be nicer about the deleted file, and let it show
+ * up under the name it got deleted rather than the name that
+ * deleted it.
+ *
+ * Careful with the hash switch. The hash switch depends on
+ * the fact that any list-entry can be a head of the list.
+ * Think about it.
+ */
+ 
+/**
+ * d_move - move a dentry
+ * @dentry: entry to move
+ * @target: new dentry
+ *
+ * Update the dcache to reflect the move of a file name. Negative
+ * dcache entries should not be moved in this way.
+ */
+  
+void d_move(struct dentry * dentry, struct dentry * target)
+{
+	check_lock();
+
+	if (!dentry->d_inode)
+		printk(KERN_WARNING "VFS: moving negative dcache entry\n");
+
+	spin_lock(&dcache_lock);
+	/* Move the dentry to the target hash queue */
+	list_del(&dentry->d_hash);
+	list_add(&dentry->d_hash, &target->d_hash);
+
+	/* Unhash the target: dput() will then get rid of it */
+	list_del_init(&target->d_hash);
+
+	list_del(&dentry->d_child);
+	list_del(&target->d_child);
+
+	/* Switch the parents and the names.. */
+	switch_names(dentry, target);
+	do_switch(dentry->d_parent, target->d_parent);
+	do_switch(dentry->d_name.len, target->d_name.len);
+	do_switch(dentry->d_name.hash, target->d_name.hash);
+
+	/* And add them back to the (new) parent lists */
+	list_add(&target->d_child, &target->d_parent->d_subdirs);
+	list_add(&dentry->d_child, &dentry->d_parent->d_subdirs);
+	spin_unlock(&dcache_lock);
+}
+
+/**
+ * d_path - return the path of a dentry
+ * @dentry: dentry to report
+ * @vfsmnt: vfsmnt to which the dentry belongs
+ * @root: root dentry
+ * @rootmnt: vfsmnt to which the root dentry belongs
+ * @buffer: buffer to return value in
+ * @buflen: buffer length
+ *
+ * Convert a dentry into an ASCII path name. If the entry has been deleted
+ * the string " (deleted)" is appended. Note that this is ambiguous. Returns
+ * the buffer.
+ *
+ * "buflen" should be %PAGE_SIZE or more. Caller holds the dcache_lock.
+ */
+char * __d_path(struct dentry *dentry, struct vfsmount *vfsmnt,
+		struct dentry *root, struct vfsmount *rootmnt,
+		char *buffer, int buflen)
+{
+	char * end = buffer+buflen;
+	char * retval;
+	int namelen;
+
+	*--end = '\0';
+	buflen--;
+	if (!IS_ROOT(dentry) && list_empty(&dentry->d_hash)) {
+		buflen -= 10;
+		end -= 10;
+		memcpy(end, " (deleted)", 10);
+	}
+
+	/* Get '/' right */
+	retval = end-1;
+	*retval = '/';
+
+	for (;;) {
+		struct dentry * parent;
+
+		if (dentry == root && vfsmnt == rootmnt)
+			break;
+		if (dentry == vfsmnt->mnt_root || IS_ROOT(dentry)) {
+			/* Global root? */
+			if (vfsmnt->mnt_parent == vfsmnt)
+				goto global_root;
+			dentry = vfsmnt->mnt_mountpoint;
+			vfsmnt = vfsmnt->mnt_parent;
+			continue;
+		}
+		parent = dentry->d_parent;
+		namelen = dentry->d_name.len;
+		buflen -= namelen + 1;
+		if (buflen < 0)
+			return ERR_PTR(-ENAMETOOLONG);
+		end -= namelen;
+		memcpy(end, dentry->d_name.name, namelen);
+		*--end = '/';
+		retval = end;
+		dentry = parent;
+	}
+
+	return retval;
+
+global_root:
+	namelen = dentry->d_name.len;
+	buflen -= namelen;
+	if (buflen >= 0) {
+		retval -= namelen-1;	/* hit the slash */
+		memcpy(retval, dentry->d_name.name, namelen);
+	} else
+		retval = ERR_PTR(-ENAMETOOLONG);
+	return retval;
+}
+
+/*
+ * NOTE! The user-level library version returns a
+ * character pointer. The kernel system call just
+ * returns the length of the buffer filled (which
+ * includes the ending '\0' character), or a negative
+ * error value. So libc would do something like
+ *
+ *	char *getcwd(char * buf, size_t size)
+ *	{
+ *		int retval;
+ *
+ *		retval = sys_getcwd(buf, size);
+ *		if (retval >= 0)
+ *			return buf;
+ *		errno = -retval;
+ *		return NULL;
+ *	}
+ */
+asmlinkage long sys_getcwd(char *buf, unsigned long size)
+{
+	int error;
+	struct vfsmount *pwdmnt, *rootmnt;
+	struct dentry *pwd, *root;
+	char *page = (char *) __get_free_page(GFP_USER);
+
+	if (!page)
+		return -ENOMEM;
+
+	read_lock(&current->fs->lock);
+	pwdmnt = mntget(current->fs->pwdmnt);
+	pwd = dget(current->fs->pwd);
+	rootmnt = mntget(current->fs->rootmnt);
+	root = dget(current->fs->root);
+	read_unlock(&current->fs->lock);
+
+	error = -ENOENT;
+	/* Has the current directory has been unlinked? */
+	spin_lock(&dcache_lock);
+	if (pwd->d_parent == pwd || !list_empty(&pwd->d_hash)) {
+		unsigned long len;
+		char * cwd;
+
+		cwd = __d_path(pwd, pwdmnt, root, rootmnt, page, PAGE_SIZE);
+		spin_unlock(&dcache_lock);
+
+		error = PTR_ERR(cwd);
+		if (IS_ERR(cwd))
+			goto out;
+
+		error = -ERANGE;
+		len = PAGE_SIZE + page - cwd;
+		if (len <= size) {
+			error = len;
+			if (copy_to_user(buf, cwd, len))
+				error = -EFAULT;
+		}
+	} else
+		spin_unlock(&dcache_lock);
+
+out:
+	dput(pwd);
+	mntput(pwdmnt);
+	dput(root);
+	mntput(rootmnt);
+	free_page((unsigned long) page);
+	return error;
+}
+
+/*
+ * Test whether new_dentry is a subdirectory of old_dentry.
+ *
+ * Trivially implemented using the dcache structure
+ */
+
+/**
+ * is_subdir - is new dentry a subdirectory of old_dentry
+ * @new_dentry: new dentry
+ * @old_dentry: old dentry
+ *
+ * Returns 1 if new_dentry is a subdirectory of the parent (at any depth).
+ * Returns 0 otherwise.
+ */
+  
+int is_subdir(struct dentry * new_dentry, struct dentry * old_dentry)
+{
+	int result;
+
+	result = 0;
+	for (;;) {
+		if (new_dentry != old_dentry) {
+			struct dentry * parent = new_dentry->d_parent;
+			if (parent == new_dentry)
+				break;
+			new_dentry = parent;
+			continue;
+		}
+		result = 1;
+		break;
+	}
+	return result;
+}
+
+void d_genocide(struct dentry *root)
+{
+	struct dentry *this_parent = root;
+	struct list_head *next;
+
+	spin_lock(&dcache_lock);
+repeat:
+	next = this_parent->d_subdirs.next;
+resume:
+	while (next != &this_parent->d_subdirs) {
+		struct list_head *tmp = next;
+		struct dentry *dentry = list_entry(tmp, struct dentry, d_child);
+		next = tmp->next;
+		if (d_unhashed(dentry)||!dentry->d_inode)
+			continue;
+		if (!list_empty(&dentry->d_subdirs)) {
+			this_parent = dentry;
+			goto repeat;
+		}
+		atomic_dec(&dentry->d_count);
+	}
+	if (this_parent != root) {
+		next = this_parent->d_child.next; 
+		atomic_dec(&this_parent->d_count);
+		this_parent = this_parent->d_parent;
+		goto resume;
+	}
+	spin_unlock(&dcache_lock);
+}
+
+/**
+ * find_inode_number - check for dentry with name
+ * @dir: directory to check
+ * @name: Name to find.
+ *
+ * Check whether a dentry already exists for the given name,
+ * and return the inode number if it has an inode. Otherwise
+ * 0 is returned.
+ *
+ * This routine is used to post-process directory listings for
+ * filesystems using synthetic inode numbers, and is necessary
+ * to keep getcwd() working.
+ */
+ 
+ino_t find_inode_number(struct dentry *dir, struct qstr *name)
+{
+	struct dentry * dentry;
+	ino_t ino = 0;
+
+	/*
+	 * Check for a fs-specific hash function. Note that we must
+	 * calculate the standard hash first, as the d_op->d_hash()
+	 * routine may choose to leave the hash value unchanged.
+	 */
+	name->hash = full_name_hash(name->name, name->len);
+	if (dir->d_op && dir->d_op->d_hash)
+	{
+		if (dir->d_op->d_hash(dir, name) != 0)
+			goto out;
+	}
+
+	dentry = d_lookup(dir, name);
+	if (dentry)
+	{
+		if (dentry->d_inode)
+			ino = dentry->d_inode->i_ino;
+		dput(dentry);
+	}
+out:
+	return ino;
+}
+
+static void __init dcache_init(unsigned long mempages)
+{
+	struct list_head *d;
+	unsigned long order;
+	unsigned int nr_hash;
+	int i;
+
+	/* 
+	 * A constructor could be added for stable state like the lists,
+	 * but it is probably not worth it because of the cache nature
+	 * of the dcache. 
+	 * If fragmentation is too bad then the SLAB_HWCACHE_ALIGN
+	 * flag could be removed here, to hint to the allocator that
+	 * it should not try to get multiple page regions.  
+	 */
+	dentry_cache = kmem_cache_create("dentry_cache",
+					 sizeof(struct dentry),
+					 0,
+					 SLAB_HWCACHE_ALIGN,
+					 NULL, NULL);
+	if (!dentry_cache)
+		panic("Cannot create dentry cache");
+
+#if PAGE_SHIFT < 13
+	mempages >>= (13 - PAGE_SHIFT);
+#endif
+	mempages *= sizeof(struct list_head);
+	for (order = 0; ((1UL << order) << PAGE_SHIFT) < mempages; order++)
+		;
+
+	do {
+		unsigned long tmp;
+
+		nr_hash = (1UL << order) * PAGE_SIZE /
+			sizeof(struct list_head);
+		d_hash_mask = (nr_hash - 1);
+
+		tmp = nr_hash;
+		d_hash_shift = 0;
+		while ((tmp >>= 1UL) != 0UL)
+			d_hash_shift++;
+
+		dentry_hashtable = (struct list_head *)
+			__get_free_pages(GFP_ATOMIC, order);
+	} while (dentry_hashtable == NULL && --order >= 0);
+
+	printk(KERN_INFO "Dentry cache hash table entries: %d (order: %ld, %ld bytes)\n",
+			nr_hash, order, (PAGE_SIZE << order));
+
+	if (!dentry_hashtable)
+		panic("Failed to allocate dcache hash table\n");
+
+	d = dentry_hashtable;
+	i = nr_hash;
+	do {
+		INIT_LIST_HEAD(d);
+		d++;
+		i--;
+	} while (i);
+}
+
+static void init_buffer_head(void * foo, kmem_cache_t * cachep, unsigned long flags)
+{
+	if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
+	    SLAB_CTOR_CONSTRUCTOR)
+	{
+		struct buffer_head * bh = (struct buffer_head *) foo;
+
+		memset(bh, 0, sizeof(*bh));
+		init_waitqueue_head(&bh->b_wait);
+	}
+}
+
+/* SLAB cache for __getname() consumers */
+kmem_cache_t *names_cachep;
+
+/* SLAB cache for file structures */
+kmem_cache_t *filp_cachep;
+
+/* SLAB cache for dquot structures */
+kmem_cache_t *dquot_cachep;
+
+/* SLAB cache for buffer_head structures */
+kmem_cache_t *bh_cachep;
+EXPORT_SYMBOL(bh_cachep);
+
+extern void bdev_cache_init(void);
+extern void cdev_cache_init(void);
+extern void iobuf_cache_init(void);
+
+void __init vfs_caches_init(unsigned long mempages)
+{
+	bh_cachep = kmem_cache_create("buffer_head",
+			sizeof(struct buffer_head), 0,
+			SLAB_HWCACHE_ALIGN, init_buffer_head, NULL);
+	if(!bh_cachep)
+		panic("Cannot create buffer head SLAB cache");
+
+	names_cachep = kmem_cache_create("names_cache", 
+			PATH_MAX, 0, 
+			SLAB_HWCACHE_ALIGN, NULL, NULL);
+	if (!names_cachep)
+		panic("Cannot create names SLAB cache");
+
+	filp_cachep = kmem_cache_create("filp", 
+			sizeof(struct file), 0,
+			SLAB_HWCACHE_ALIGN, NULL, NULL);
+	if(!filp_cachep)
+		panic("Cannot create filp SLAB cache");
+
+#if defined (CONFIG_QUOTA)
+	dquot_cachep = kmem_cache_create("dquot", 
+			sizeof(struct dquot), sizeof(unsigned long) * 4,
+			SLAB_HWCACHE_ALIGN, NULL, NULL);
+	if (!dquot_cachep)
+		panic("Cannot create dquot SLAB cache");
+#endif
+
+	dcache_init(mempages);
+	inode_init(mempages);
+	files_init(mempages); 
+	mnt_init(mempages);
+	bdev_cache_init();
+	cdev_cache_init();
+	iobuf_cache_init();
+}
diff --git a/fs/devfs/Makefile b/fs/devfs/Makefile
new file mode 100644
index 00000000000000..b551ffd093b056
--- /dev/null
+++ b/fs/devfs/Makefile
@@ -0,0 +1,42 @@
+#
+# Makefile for the linux devfs-filesystem routines.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile...
+
+O_TARGET := devfs.o
+
+export-objs := base.o util.o
+
+obj-y   := base.o util.o
+
+# Special case to support building documentation
+ifndef TOPDIR
+TOPDIR = ../..
+endif
+
+include $(TOPDIR)/Rules.make
+
+
+# Rule to build documentation
+doc:	base.c util.c
+	@echo '$$PACKAGE devfs' > devfs.doc
+	@echo '$$NAME Linux Kernel' >> devfs.doc
+	@echo '$$SUMMARY devfs (Device FileSystem) functions' >> devfs.doc
+	@echo '$$SYNOPSIS "#include <linux/devfs_fs.h>"' >> devfs.doc
+	@echo '$$END' >> devfs.doc
+	c2doc base.c util.c >> devfs.doc
+	karma_doc2man -section 9 devfs.doc .
+	rm devfs.doc
+	gzip --best *.9
+	mv *.9.gz /usr/man/man9
+
+
+# Rule for test compiling
+test:
+	gcc -o /tmp/base.o -D__KERNEL__ -I../../include -Wall \
+	-Wstrict-prototypes -O2 -fomit-frame-pointer -pipe \
+	-fno-strength-reduce   -DEXPORT_SYMTAB -c base.c
diff --git a/fs/devfs/base.c b/fs/devfs/base.c
new file mode 100644
index 00000000000000..8e9bd93ade9930
--- /dev/null
+++ b/fs/devfs/base.c
@@ -0,0 +1,3558 @@
+/*  devfs (Device FileSystem) driver.
+
+    Copyright (C) 1998-2002  Richard Gooch
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public
+    License along with this library; if not, write to the Free
+    Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+    Richard Gooch may be reached by email at  rgooch@atnf.csiro.au
+    The postal address is:
+      Richard Gooch, c/o ATNF, P. O. Box 76, Epping, N.S.W., 2121, Australia.
+
+    ChangeLog
+
+    19980110   Richard Gooch <rgooch@atnf.csiro.au>
+               Original version.
+  v0.1
+    19980111   Richard Gooch <rgooch@atnf.csiro.au>
+               Created per-fs inode table rather than using inode->u.generic_ip
+  v0.2
+    19980111   Richard Gooch <rgooch@atnf.csiro.au>
+               Created .epoch inode which has a ctime of 0.
+	       Fixed loss of named pipes when dentries lost.
+	       Fixed loss of inode data when devfs_register() follows mknod().
+  v0.3
+    19980111   Richard Gooch <rgooch@atnf.csiro.au>
+               Fix for when compiling with CONFIG_KERNELD.
+    19980112   Richard Gooch <rgooch@atnf.csiro.au>
+               Fix for readdir() which sometimes didn't show entries.
+	       Added <<tolerant>> option to <devfs_register>.
+  v0.4
+    19980113   Richard Gooch <rgooch@atnf.csiro.au>
+               Created <devfs_fill_file> function.
+  v0.5
+    19980115   Richard Gooch <rgooch@atnf.csiro.au>
+               Added subdirectory support. Major restructuring.
+    19980116   Richard Gooch <rgooch@atnf.csiro.au>
+               Fixed <find_by_dev> to not search major=0,minor=0.
+	       Added symlink support.
+  v0.6
+    19980120   Richard Gooch <rgooch@atnf.csiro.au>
+               Created <devfs_mk_dir> function and support directory unregister
+    19980120   Richard Gooch <rgooch@atnf.csiro.au>
+               Auto-ownership uses real uid/gid rather than effective uid/gid.
+  v0.7
+    19980121   Richard Gooch <rgooch@atnf.csiro.au>
+               Supported creation of sockets.
+  v0.8
+    19980122   Richard Gooch <rgooch@atnf.csiro.au>
+               Added DEVFS_FL_HIDE_UNREG flag.
+	       Interface change to <devfs_mk_symlink>.
+               Created <devfs_symlink> to support symlink(2).
+  v0.9
+    19980123   Richard Gooch <rgooch@atnf.csiro.au>
+               Added check to <devfs_fill_file> to check inode is in devfs.
+	       Added optional traversal of symlinks.
+  v0.10
+    19980124   Richard Gooch <rgooch@atnf.csiro.au>
+               Created <devfs_get_flags> and <devfs_set_flags>.
+  v0.11
+    19980125   C. Scott Ananian <cananian@alumni.princeton.edu>
+               Created <devfs_find_handle>.
+    19980125   Richard Gooch <rgooch@atnf.csiro.au>
+               Allow removal of symlinks.
+  v0.12
+    19980125   Richard Gooch <rgooch@atnf.csiro.au>
+               Created <devfs_set_symlink_destination>.
+    19980126   Richard Gooch <rgooch@atnf.csiro.au>
+               Moved DEVFS_SUPER_MAGIC into header file.
+	       Added DEVFS_FL_HIDE flag.
+	       Created <devfs_get_maj_min>.
+	       Created <devfs_get_handle_from_inode>.
+	       Fixed minor bug in <find_by_dev>.
+    19980127   Richard Gooch <rgooch@atnf.csiro.au>
+	       Changed interface to <find_by_dev>, <find_entry>,
+	       <devfs_unregister>, <devfs_fill_file> and <devfs_find_handle>.
+	       Fixed inode times when symlink created with symlink(2).
+  v0.13
+    19980129   C. Scott Ananian <cananian@alumni.princeton.edu>
+               Exported <devfs_set_symlink_destination>, <devfs_get_maj_min>
+	       and <devfs_get_handle_from_inode>.
+    19980129   Richard Gooch <rgooch@atnf.csiro.au>
+	       Created <devfs_unlink> to support unlink(2).
+  v0.14
+    19980129   Richard Gooch <rgooch@atnf.csiro.au>
+	       Fixed kerneld support for entries in devfs subdirectories.
+    19980130   Richard Gooch <rgooch@atnf.csiro.au>
+	       Bugfixes in <call_kerneld>.
+  v0.15
+    19980207   Richard Gooch <rgooch@atnf.csiro.au>
+	       Call kerneld when looking up unregistered entries.
+  v0.16
+    19980326   Richard Gooch <rgooch@atnf.csiro.au>
+	       Modified interface to <devfs_find_handle> for symlink traversal.
+  v0.17
+    19980331   Richard Gooch <rgooch@atnf.csiro.au>
+	       Fixed persistence bug with device numbers for manually created
+	       device files.
+	       Fixed problem with recreating symlinks with different content.
+  v0.18
+    19980401   Richard Gooch <rgooch@atnf.csiro.au>
+	       Changed to CONFIG_KMOD.
+	       Hide entries which are manually unlinked.
+	       Always invalidate devfs dentry cache when registering entries.
+	       Created <devfs_rmdir> to support rmdir(2).
+	       Ensure directories created by <devfs_mk_dir> are visible.
+  v0.19
+    19980402   Richard Gooch <rgooch@atnf.csiro.au>
+	       Invalidate devfs dentry cache when making directories.
+	       Invalidate devfs dentry cache when removing entries.
+	       Fixed persistence bug with fifos.
+  v0.20
+    19980421   Richard Gooch <rgooch@atnf.csiro.au>
+	       Print process command when debugging kerneld/kmod.
+	       Added debugging for register/unregister/change operations.
+    19980422   Richard Gooch <rgooch@atnf.csiro.au>
+	       Added "devfs=" boot options.
+  v0.21
+    19980426   Richard Gooch <rgooch@atnf.csiro.au>
+	       No longer lock/unlock superblock in <devfs_put_super>.
+	       Drop negative dentries when they are released.
+	       Manage dcache more efficiently.
+  v0.22
+    19980427   Richard Gooch <rgooch@atnf.csiro.au>
+	       Added DEVFS_FL_AUTO_DEVNUM flag.
+  v0.23
+    19980430   Richard Gooch <rgooch@atnf.csiro.au>
+	       No longer set unnecessary methods.
+  v0.24
+    19980504   Richard Gooch <rgooch@atnf.csiro.au>
+	       Added PID display to <call_kerneld> debugging message.
+	       Added "after" debugging message to <call_kerneld>.
+    19980519   Richard Gooch <rgooch@atnf.csiro.au>
+	       Added "diread" and "diwrite" boot options.
+    19980520   Richard Gooch <rgooch@atnf.csiro.au>
+	       Fixed persistence problem with permissions.
+  v0.25
+    19980602   Richard Gooch <rgooch@atnf.csiro.au>
+	       Support legacy device nodes.
+	       Fixed bug where recreated inodes were hidden.
+  v0.26
+    19980602   Richard Gooch <rgooch@atnf.csiro.au>
+	       Improved debugging in <get_vfs_inode>.
+    19980607   Richard Gooch <rgooch@atnf.csiro.au>
+	       No longer free old dentries in <devfs_mk_dir>.
+	       Free all dentries for a given entry when deleting inodes.
+  v0.27
+    19980627   Richard Gooch <rgooch@atnf.csiro.au>
+	       Limit auto-device numbering to majors 128 to 239.
+  v0.28
+    19980629   Richard Gooch <rgooch@atnf.csiro.au>
+	       Fixed inode times persistence problem.
+  v0.29
+    19980704   Richard Gooch <rgooch@atnf.csiro.au>
+	       Fixed spelling in <devfs_readlink> debug.
+	       Fixed bug in <devfs_setup> parsing "dilookup".
+  v0.30
+    19980705   Richard Gooch <rgooch@atnf.csiro.au>
+	       Fixed devfs inode leak when manually recreating inodes.
+	       Fixed permission persistence problem when recreating inodes.
+  v0.31
+    19980727   Richard Gooch <rgooch@atnf.csiro.au>
+	       Removed harmless "unused variable" compiler warning.
+	       Fixed modes for manually recreated device nodes.
+  v0.32
+    19980728   Richard Gooch <rgooch@atnf.csiro.au>
+	       Added NULL devfs inode warning in <devfs_read_inode>.
+	       Force all inode nlink values to 1.
+  v0.33
+    19980730   Richard Gooch <rgooch@atnf.csiro.au>
+	       Added "dimknod" boot option.
+	       Set inode nlink to 0 when freeing dentries.
+	       Fixed modes for manually recreated symlinks.
+  v0.34
+    19980802   Richard Gooch <rgooch@atnf.csiro.au>
+	       Fixed bugs in recreated directories and symlinks.
+  v0.35
+    19980806   Richard Gooch <rgooch@atnf.csiro.au>
+	       Fixed bugs in recreated device nodes.
+    19980807   Richard Gooch <rgooch@atnf.csiro.au>
+	       Fixed bug in currently unused <devfs_get_handle_from_inode>.
+	       Defined new <devfs_handle_t> type.
+	       Improved debugging when getting entries.
+	       Fixed bug where directories could be emptied.
+  v0.36
+    19980809   Richard Gooch <rgooch@atnf.csiro.au>
+	       Replaced dummy .epoch inode with .devfsd character device.
+    19980810   Richard Gooch <rgooch@atnf.csiro.au>
+	       Implemented devfsd protocol revision 0.
+  v0.37
+    19980819   Richard Gooch <rgooch@atnf.csiro.au>
+	       Added soothing message to warning in <devfs_d_iput>.
+  v0.38
+    19980829   Richard Gooch <rgooch@atnf.csiro.au>
+	       Use GCC extensions for structure initialisations.
+	       Implemented async open notification.
+	       Incremented devfsd protocol revision to 1.
+  v0.39
+    19980908   Richard Gooch <rgooch@atnf.csiro.au>
+	       Moved async open notification to end of <devfs_open>.
+  v0.40
+    19980910   Richard Gooch <rgooch@atnf.csiro.au>
+	       Prepended "/dev/" to module load request.
+	       Renamed <call_kerneld> to <call_kmod>.
+  v0.41
+    19980910   Richard Gooch <rgooch@atnf.csiro.au>
+	       Fixed typo "AYSNC" -> "ASYNC".
+  v0.42
+    19980910   Richard Gooch <rgooch@atnf.csiro.au>
+	       Added open flag for files.
+  v0.43
+    19980927   Richard Gooch <rgooch@atnf.csiro.au>
+	       Set i_blocks=0 and i_blksize=1024 in <devfs_read_inode>.
+  v0.44
+    19981005   Richard Gooch <rgooch@atnf.csiro.au>
+	       Added test for empty <<name>> in <devfs_find_handle>.
+	       Renamed <generate_path> to <devfs_generate_path> and published.
+  v0.45
+    19981006   Richard Gooch <rgooch@atnf.csiro.au>
+	       Created <devfs_get_fops>.
+  v0.46
+    19981007   Richard Gooch <rgooch@atnf.csiro.au>
+	       Limit auto-device numbering to majors 144 to 239.
+  v0.47
+    19981010   Richard Gooch <rgooch@atnf.csiro.au>
+	       Updated <devfs_follow_link> for VFS change in 2.1.125.
+  v0.48
+    19981022   Richard Gooch <rgooch@atnf.csiro.au>
+	       Created DEVFS_ FL_COMPAT flag.
+  v0.49
+    19981023   Richard Gooch <rgooch@atnf.csiro.au>
+	       Created "nocompat" boot option.
+  v0.50
+    19981025   Richard Gooch <rgooch@atnf.csiro.au>
+	       Replaced "mount" boot option with "nomount".
+  v0.51
+    19981110   Richard Gooch <rgooch@atnf.csiro.au>
+	       Created "only" boot option.
+  v0.52
+    19981112   Richard Gooch <rgooch@atnf.csiro.au>
+	       Added DEVFS_FL_REMOVABLE flag.
+  v0.53
+    19981114   Richard Gooch <rgooch@atnf.csiro.au>
+	       Only call <scan_dir_for_removable> on first call to
+	       <devfs_readdir>.
+  v0.54
+    19981205   Richard Gooch <rgooch@atnf.csiro.au>
+	       Updated <devfs_rmdir> for VFS change in 2.1.131.
+  v0.55
+    19981218   Richard Gooch <rgooch@atnf.csiro.au>
+	       Created <devfs_mk_compat>.
+    19981220   Richard Gooch <rgooch@atnf.csiro.au>
+	       Check for partitions on removable media in <devfs_lookup>.
+  v0.56
+    19990118   Richard Gooch <rgooch@atnf.csiro.au>
+	       Added support for registering regular files.
+	       Created <devfs_set_file_size>.
+	       Update devfs inodes from entries if not changed through FS.
+  v0.57
+    19990124   Richard Gooch <rgooch@atnf.csiro.au>
+	       Fixed <devfs_fill_file> to only initialise temporary inodes.
+	       Trap for NULL fops in <devfs_register>.
+	       Return -ENODEV in <devfs_fill_file> for non-driver inodes.
+  v0.58
+    19990126   Richard Gooch <rgooch@atnf.csiro.au>
+	       Switched from PATH_MAX to DEVFS_PATHLEN.
+  v0.59
+    19990127   Richard Gooch <rgooch@atnf.csiro.au>
+	       Created "nottycompat" boot option.
+  v0.60
+    19990318   Richard Gooch <rgooch@atnf.csiro.au>
+	       Fixed <devfsd_read> to not overrun event buffer.
+  v0.61
+    19990329   Richard Gooch <rgooch@atnf.csiro.au>
+	       Created <devfs_auto_unregister>.
+  v0.62
+    19990330   Richard Gooch <rgooch@atnf.csiro.au>
+	       Don't return unregistred entries in <devfs_find_handle>.
+	       Panic in <devfs_unregister> if entry unregistered.
+    19990401   Richard Gooch <rgooch@atnf.csiro.au>
+	       Don't panic in <devfs_auto_unregister> for duplicates.
+  v0.63
+    19990402   Richard Gooch <rgooch@atnf.csiro.au>
+	       Don't unregister already unregistered entries in <unregister>.
+  v0.64
+    19990510   Richard Gooch <rgooch@atnf.csiro.au>
+	       Disable warning messages when unable to read partition table for
+	       removable media.
+  v0.65
+    19990512   Richard Gooch <rgooch@atnf.csiro.au>
+	       Updated <devfs_lookup> for VFS change in 2.3.1-pre1.
+	       Created "oops-on-panic" boot option.
+	       Improved debugging in <devfs_register> and <devfs_unregister>.
+  v0.66
+    19990519   Richard Gooch <rgooch@atnf.csiro.au>
+	       Added documentation for some functions.
+    19990525   Richard Gooch <rgooch@atnf.csiro.au>
+	       Removed "oops-on-panic" boot option: now always Oops.
+  v0.67
+    19990531   Richard Gooch <rgooch@atnf.csiro.au>
+	       Improved debugging in <devfs_register>.
+  v0.68
+    19990604   Richard Gooch <rgooch@atnf.csiro.au>
+	       Added "diunlink" and "nokmod" boot options.
+	       Removed superfluous warning message in <devfs_d_iput>.
+  v0.69
+    19990611   Richard Gooch <rgooch@atnf.csiro.au>
+	       Took account of change to <d_alloc_root>.
+  v0.70
+    19990614   Richard Gooch <rgooch@atnf.csiro.au>
+	       Created separate event queue for each mounted devfs.
+	       Removed <devfs_invalidate_dcache>.
+	       Created new ioctl()s.
+	       Incremented devfsd protocol revision to 3.
+	       Fixed bug when re-creating directories: contents were lost.
+	       Block access to inodes until devfsd updates permissions.
+    19990615   Richard Gooch <rgooch@atnf.csiro.au>
+	       Support 2.2.x kernels.
+  v0.71
+    19990623   Richard Gooch <rgooch@atnf.csiro.au>
+	       Switched to sending process uid/gid to devfsd.
+	       Renamed <call_kmod> to <try_modload>.
+	       Added DEVFSD_NOTIFY_LOOKUP event.
+    19990624   Richard Gooch <rgooch@atnf.csiro.au>
+	       Added DEVFSD_NOTIFY_CHANGE event.
+	       Incremented devfsd protocol revision to 4.
+  v0.72
+    19990713   Richard Gooch <rgooch@atnf.csiro.au>
+	       Return EISDIR rather than EINVAL for read(2) on directories.
+  v0.73
+    19990809   Richard Gooch <rgooch@atnf.csiro.au>
+	       Changed <devfs_setup> to new __init scheme.
+  v0.74
+    19990901   Richard Gooch <rgooch@atnf.csiro.au>
+	       Changed remaining function declarations to new __init scheme.
+  v0.75
+    19991013   Richard Gooch <rgooch@atnf.csiro.au>
+	       Created <devfs_get_info>, <devfs_set_info>,
+	       <devfs_get_first_child> and <devfs_get_next_sibling>.
+	       Added <<dir>> parameter to <devfs_register>, <devfs_mk_compat>,
+	       <devfs_mk_dir> and <devfs_find_handle>.
+	       Work sponsored by SGI.
+  v0.76
+    19991017   Richard Gooch <rgooch@atnf.csiro.au>
+	       Allow multiple unregistrations.
+	       Work sponsored by SGI.
+  v0.77
+    19991026   Richard Gooch <rgooch@atnf.csiro.au>
+	       Added major and minor number to devfsd protocol.
+	       Incremented devfsd protocol revision to 5.
+	       Work sponsored by SGI.
+  v0.78
+    19991030   Richard Gooch <rgooch@atnf.csiro.au>
+	       Support info pointer for all devfs entry types.
+	       Added <<info>> parameter to <devfs_mk_dir> and
+	       <devfs_mk_symlink>.
+	       Work sponsored by SGI.
+  v0.79
+    19991031   Richard Gooch <rgooch@atnf.csiro.au>
+	       Support "../" when searching devfs namespace.
+	       Work sponsored by SGI.
+  v0.80
+    19991101   Richard Gooch <rgooch@atnf.csiro.au>
+	       Created <devfs_get_unregister_slave>.
+	       Work sponsored by SGI.
+  v0.81
+    19991103   Richard Gooch <rgooch@atnf.csiro.au>
+	       Exported <devfs_get_parent>.
+	       Work sponsored by SGI.
+  v0.82
+    19991104   Richard Gooch <rgooch@atnf.csiro.au>
+               Removed unused <devfs_set_symlink_destination>.
+    19991105   Richard Gooch <rgooch@atnf.csiro.au>
+               Do not hide entries from devfsd or children.
+	       Removed DEVFS_ FL_TTY_COMPAT flag.
+	       Removed "nottycompat" boot option.
+	       Removed <devfs_mk_compat>.
+	       Work sponsored by SGI.
+  v0.83
+    19991107   Richard Gooch <rgooch@atnf.csiro.au>
+	       Added DEVFS_FL_WAIT flag.
+	       Work sponsored by SGI.
+  v0.84
+    19991107   Richard Gooch <rgooch@atnf.csiro.au>
+	       Support new "disc" naming scheme in <get_removable_partition>.
+	       Allow NULL fops in <devfs_register>.
+	       Work sponsored by SGI.
+  v0.85
+    19991110   Richard Gooch <rgooch@atnf.csiro.au>
+	       Fall back to major table if NULL fops given to <devfs_register>.
+	       Work sponsored by SGI.
+  v0.86
+    19991204   Richard Gooch <rgooch@atnf.csiro.au>
+	       Support fifos when unregistering.
+	       Work sponsored by SGI.
+  v0.87
+    19991209   Richard Gooch <rgooch@atnf.csiro.au>
+	       Removed obsolete DEVFS_ FL_COMPAT and DEVFS_ FL_TOLERANT flags.
+	       Work sponsored by SGI.
+  v0.88
+    19991214   Richard Gooch <rgooch@atnf.csiro.au>
+	       Removed kmod support.
+	       Work sponsored by SGI.
+  v0.89
+    19991216   Richard Gooch <rgooch@atnf.csiro.au>
+	       Improved debugging in <get_vfs_inode>.
+	       Ensure dentries created by devfsd will be cleaned up.
+	       Work sponsored by SGI.
+  v0.90
+    19991223   Richard Gooch <rgooch@atnf.csiro.au>
+	       Created <devfs_get_name>.
+	       Work sponsored by SGI.
+  v0.91
+    20000203   Richard Gooch <rgooch@atnf.csiro.au>
+	       Ported to kernel 2.3.42.
+	       Removed <devfs_fill_file>.
+	       Work sponsored by SGI.
+  v0.92
+    20000306   Richard Gooch <rgooch@atnf.csiro.au>
+	       Added DEVFS_ FL_NO_PERSISTENCE flag.
+	       Removed unnecessary call to <update_devfs_inode_from_entry> in
+	       <devfs_readdir>.
+	       Work sponsored by SGI.
+  v0.93
+    20000413   Richard Gooch <rgooch@atnf.csiro.au>
+	       Set inode->i_size to correct size for symlinks.
+    20000414   Richard Gooch <rgooch@atnf.csiro.au>
+	       Only give lookup() method to directories to comply with new VFS
+	       assumptions.
+	       Work sponsored by SGI.
+    20000415   Richard Gooch <rgooch@atnf.csiro.au>
+	       Remove unnecessary tests in symlink methods.
+	       Don't kill existing block ops in <devfs_read_inode>.
+	       Work sponsored by SGI.
+  v0.94
+    20000424   Richard Gooch <rgooch@atnf.csiro.au>
+	       Don't create missing directories in <devfs_find_handle>.
+	       Work sponsored by SGI.
+  v0.95
+    20000430   Richard Gooch <rgooch@atnf.csiro.au>
+	       Added CONFIG_DEVFS_MOUNT.
+	       Work sponsored by SGI.
+  v0.96
+    20000608   Richard Gooch <rgooch@atnf.csiro.au>
+	       Disabled multi-mount capability (use VFS bindings instead).
+	       Work sponsored by SGI.
+  v0.97
+    20000610   Richard Gooch <rgooch@atnf.csiro.au>
+	       Switched to FS_SINGLE to disable multi-mounts.
+    20000612   Richard Gooch <rgooch@atnf.csiro.au>
+	       Removed module support.
+	       Removed multi-mount code.
+	       Removed compatibility macros: VFS has changed too much.
+	       Work sponsored by SGI.
+  v0.98
+    20000614   Richard Gooch <rgooch@atnf.csiro.au>
+	       Merged devfs inode into devfs entry.
+	       Work sponsored by SGI.
+  v0.99
+    20000619   Richard Gooch <rgooch@atnf.csiro.au>
+	       Removed dead code in <devfs_register> which used to call
+	       <free_dentries>.
+	       Work sponsored by SGI.
+  v0.100
+    20000621   Richard Gooch <rgooch@atnf.csiro.au>
+	       Changed interface to <devfs_register>.
+	       Work sponsored by SGI.
+  v0.101
+    20000622   Richard Gooch <rgooch@atnf.csiro.au>
+	       Simplified interface to <devfs_mk_symlink> and <devfs_mk_dir>.
+	       Simplified interface to <devfs_find_handle>.
+	       Work sponsored by SGI.
+  v0.102
+    20010519   Richard Gooch <rgooch@atnf.csiro.au>
+	       Ensure <devfs_generate_path> terminates string for root entry.
+	       Exported <devfs_get_name> to modules.
+    20010520   Richard Gooch <rgooch@atnf.csiro.au>
+	       Make <devfs_mk_symlink> send events to devfsd.
+	       Cleaned up option processing in <devfs_setup>.
+    20010521   Richard Gooch <rgooch@atnf.csiro.au>
+	       Fixed bugs in handling symlinks: could leak or cause Oops.
+    20010522   Richard Gooch <rgooch@atnf.csiro.au>
+	       Cleaned up directory handling by separating fops.
+  v0.103
+    20010601   Richard Gooch <rgooch@atnf.csiro.au>
+	       Fixed handling of inverted options in <devfs_setup>.
+  v0.104
+    20010604   Richard Gooch <rgooch@atnf.csiro.au>
+	       Adjusted <try_modload> to account for <devfs_generate_path> fix.
+  v0.105
+    20010617   Richard Gooch <rgooch@atnf.csiro.au>
+	       Answered question posed by Al Viro and removed his comments.
+	       Moved setting of registered flag after other fields are changed.
+	       Fixed race between <devfsd_close> and <devfsd_notify_one>.
+	       Global VFS changes added bogus BKL to <devfsd_close>: removed.
+	       Widened locking in <devfs_readlink> and <devfs_follow_link>.
+	       Replaced <devfsd_read> stack usage with <devfsd_ioctl> kmalloc.
+	       Simplified locking in <devfsd_ioctl> and fixed memory leak.
+  v0.106
+    20010709   Richard Gooch <rgooch@atnf.csiro.au>
+	       Removed broken devnum allocation and use <devfs_alloc_devnum>.
+	       Fixed old devnum leak by calling new <devfs_dealloc_devnum>.
+  v0.107
+    20010712   Richard Gooch <rgooch@atnf.csiro.au>
+	       Fixed bug in <devfs_setup> which could hang boot process.
+  v0.108
+    20010730   Richard Gooch <rgooch@atnf.csiro.au>
+	       Added DEVFSD_NOTIFY_DELETE event.
+    20010801   Richard Gooch <rgooch@atnf.csiro.au>
+	       Removed #include <asm/segment.h>.
+  v0.109
+    20010807   Richard Gooch <rgooch@atnf.csiro.au>
+	       Fixed inode table races by removing it and using
+	       inode->u.generic_ip instead.
+	       Moved <devfs_read_inode> into <get_vfs_inode>.
+	       Moved <devfs_write_inode> into <devfs_notify_change>.
+  v0.110
+    20010808   Richard Gooch <rgooch@atnf.csiro.au>
+	       Fixed race in <devfs_do_symlink> for uni-processor.
+  v0.111
+    20010818   Richard Gooch <rgooch@atnf.csiro.au>
+	       Removed remnant of multi-mount support in <devfs_mknod>.
+               Removed unused DEVFS_FL_SHOW_UNREG flag.
+  v0.112
+    20010820   Richard Gooch <rgooch@atnf.csiro.au>
+	       Removed nlink field from struct devfs_inode.
+  v0.113
+    20010823   Richard Gooch <rgooch@atnf.csiro.au>
+	       Replaced BKL with global rwsem to protect symlink data (quick
+	       and dirty hack).
+  v0.114
+    20010827   Richard Gooch <rgooch@atnf.csiro.au>
+	       Replaced global rwsem for symlink with per-link refcount.
+  v0.115
+    20010919   Richard Gooch <rgooch@atnf.csiro.au>
+	       Set inode->i_mapping->a_ops for block nodes in <get_vfs_inode>.
+  v0.116
+    20011008   Richard Gooch <rgooch@atnf.csiro.au>
+	       Fixed overrun in <devfs_link> by removing function (not needed).
+    20011009   Richard Gooch <rgooch@atnf.csiro.au>
+	       Fixed buffer underrun in <try_modload>.
+    20011029   Richard Gooch <rgooch@atnf.csiro.au>
+	       Fixed race in <devfsd_ioctl> when setting event mask.
+    20011114   Richard Gooch <rgooch@atnf.csiro.au>
+	       First release of new locking code.
+  v1.0
+    20011117   Richard Gooch <rgooch@atnf.csiro.au>
+	       Discard temporary buffer, now use "%s" for dentry names.
+    20011118   Richard Gooch <rgooch@atnf.csiro.au>
+	       Don't generate path in <try_modload>: use fake entry instead.
+	       Use "existing" directory in <_devfs_make_parent_for_leaf>.
+    20011122   Richard Gooch <rgooch@atnf.csiro.au>
+	       Use slab cache rather than fixed buffer for devfsd events.
+  v1.1
+    20011125   Richard Gooch <rgooch@atnf.csiro.au>
+	       Send DEVFSD_NOTIFY_REGISTERED events in <devfs_mk_dir>.
+    20011127   Richard Gooch <rgooch@atnf.csiro.au>
+	       Fixed locking bug in <devfs_d_revalidate_wait> due to typo.
+	       Do not send CREATE, CHANGE, ASYNC_OPEN or DELETE events from
+	       devfsd or children.
+  v1.2
+    20011202   Richard Gooch <rgooch@atnf.csiro.au>
+	       Fixed bug in <devfsd_read>: was dereferencing freed pointer.
+  v1.3
+    20011203   Richard Gooch <rgooch@atnf.csiro.au>
+	       Fixed bug in <devfsd_close>: was dereferencing freed pointer.
+	       Added process group check for devfsd privileges.
+  v1.4
+    20011204   Richard Gooch <rgooch@atnf.csiro.au>
+	       Use SLAB_ATOMIC in <devfsd_notify_de> from <devfs_d_delete>.
+  v1.5
+    20011211   Richard Gooch <rgooch@atnf.csiro.au>
+	       Return old entry in <devfs_mk_dir> for 2.4.x kernels.
+    20011212   Richard Gooch <rgooch@atnf.csiro.au>
+	       Increment refcount on module in <check_disc_changed>.
+    20011215   Richard Gooch <rgooch@atnf.csiro.au>
+	       Created <devfs_get_handle> and exported <devfs_put>.
+	       Increment refcount on module in <devfs_get_ops>.
+	       Created <devfs_put_ops>.
+  v1.6
+    20011216   Richard Gooch <rgooch@atnf.csiro.au>
+	       Added poisoning to <devfs_put>.
+	       Improved debugging messages.
+  v1.7
+    20011221   Richard Gooch <rgooch@atnf.csiro.au>
+	       Corrected (made useful) debugging message in <unregister>.
+	       Moved <kmem_cache_create> in <mount_devfs_fs> to <init_devfs_fs>
+    20011224   Richard Gooch <rgooch@atnf.csiro.au>
+	       Added magic number to guard against scribbling drivers.
+    20011226   Richard Gooch <rgooch@atnf.csiro.au>
+	       Only return old entry in <devfs_mk_dir> if a directory.
+	       Defined macros for error and debug messages.
+  v1.8
+    20020113   Richard Gooch <rgooch@atnf.csiro.au>
+	       Fixed (rare, old) race in <devfs_lookup>.
+  v1.9
+    20020120   Richard Gooch <rgooch@atnf.csiro.au>
+	       Fixed deadlock bug in <devfs_d_revalidate_wait>.
+	       Tag VFS deletable in <devfs_mk_symlink> if handle ignored.
+  v1.10
+    20020129   Richard Gooch <rgooch@atnf.csiro.au>
+	       Added KERN_* to remaining messages.
+	       Cleaned up declaration of <stat_read>.
+  v1.11
+    20020219   Richard Gooch <rgooch@atnf.csiro.au>
+	       Changed <devfs_rmdir> to allow later additions if not yet empty.
+  v1.12
+    20020514   Richard Gooch <rgooch@atnf.csiro.au>
+	       Added BKL to <devfs_open> because drivers still need it.
+	       Protected <scan_dir_for_removable> and <get_removable_partition>
+	       from changing directory contents.
+  v1.12a
+    20020721   Richard Gooch <rgooch@atnf.csiro.au>
+	       Switched to ISO C structure field initialisers.
+	       Switch to set_current_state() and move before add_wait_queue().
+    20020722   Richard Gooch <rgooch@atnf.csiro.au>
+	       Fixed devfs entry leak in <devfs_readdir> when *readdir fails.
+  v1.12b
+    20020818   Richard Gooch <rgooch@atnf.csiro.au>
+	       Fixed module unload race in <devfs_open>.
+  v1.12c
+*/
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/tty.h>
+#include <linux/timer.h>
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/wait.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/ctype.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/devfs_fs.h>
+#include <linux/devfs_fs_kernel.h>
+#include <linux/smp_lock.h>
+#include <linux/smp.h>
+#include <linux/version.h>
+#include <linux/rwsem.h>
+
+#include <asm/uaccess.h>
+#include <asm/io.h>
+#include <asm/processor.h>
+#include <asm/system.h>
+#include <asm/pgtable.h>
+#include <asm/bitops.h>
+#include <asm/atomic.h>
+
+#define DEVFS_VERSION            "1.12c (20020818)"
+
+#define DEVFS_NAME "devfs"
+
+#define FIRST_INODE 1
+
+#define STRING_LENGTH 256
+#define FAKE_BLOCK_SIZE 1024
+#define POISON_PTR ( *(void **) poison_array )
+#define MAGIC_VALUE 0x327db823
+
+#ifndef TRUE
+#  define TRUE 1
+#  define FALSE 0
+#endif
+
+#define MODE_DIR (S_IFDIR | S_IWUSR | S_IRUGO | S_IXUGO)
+
+#define IS_HIDDEN(de) ( (de)->hide && !is_devfsd_or_child(fs_info) )
+
+#define DEBUG_NONE         0x0000000
+#define DEBUG_MODULE_LOAD  0x0000001
+#define DEBUG_REGISTER     0x0000002
+#define DEBUG_UNREGISTER   0x0000004
+#define DEBUG_FREE         0x0000008
+#define DEBUG_SET_FLAGS    0x0000010
+#define DEBUG_S_READ       0x0000100        /*  Break  */
+#define DEBUG_I_LOOKUP     0x0001000        /*  Break  */
+#define DEBUG_I_CREATE     0x0002000
+#define DEBUG_I_GET        0x0004000
+#define DEBUG_I_CHANGE     0x0008000
+#define DEBUG_I_UNLINK     0x0010000
+#define DEBUG_I_RLINK      0x0020000
+#define DEBUG_I_FLINK      0x0040000
+#define DEBUG_I_MKNOD      0x0080000
+#define DEBUG_F_READDIR    0x0100000        /*  Break  */
+#define DEBUG_D_DELETE     0x1000000        /*  Break  */
+#define DEBUG_D_RELEASE    0x2000000
+#define DEBUG_D_IPUT       0x4000000
+#define DEBUG_ALL          0xfffffff
+#define DEBUG_DISABLED     DEBUG_NONE
+
+#define OPTION_NONE             0x00
+#define OPTION_MOUNT            0x01
+#define OPTION_ONLY             0x02
+
+#define PRINTK(format, args...) \
+   {printk (KERN_ERR "%s" format, __FUNCTION__ , ## args);}
+
+#define OOPS(format, args...) \
+   {printk (KERN_CRIT "%s" format, __FUNCTION__ , ## args); \
+    printk ("Forcing Oops\n"); \
+    BUG();}
+
+#ifdef CONFIG_DEVFS_DEBUG
+#  define VERIFY_ENTRY(de) \
+   {if ((de) && (de)->magic_number != MAGIC_VALUE) \
+        OOPS ("(%p): bad magic value: %x\n", (de), (de)->magic_number);}
+#  define WRITE_ENTRY_MAGIC(de,magic) (de)->magic_number = (magic)
+#  define DPRINTK(flag, format, args...) \
+   {if (devfs_debug & flag) \
+	printk (KERN_INFO "%s" format, __FUNCTION__ , ## args);}
+#else
+#  define VERIFY_ENTRY(de)
+#  define WRITE_ENTRY_MAGIC(de,magic)
+#  define DPRINTK(flag, format, args...)
+#endif
+
+
+struct directory_type
+{
+    rwlock_t lock;                   /*  Lock for searching(R)/updating(W)   */
+    struct devfs_entry *first;
+    struct devfs_entry *last;
+    unsigned short num_removable;    /*  Lock for writing but not reading    */
+    unsigned char no_more_additions:1;
+};
+
+struct file_type
+{
+    unsigned long size;
+};
+
+struct device_type
+{
+    unsigned short major;
+    unsigned short minor;
+};
+
+struct fcb_type  /*  File, char, block type  */
+{
+    void *ops;
+    union 
+    {
+	struct file_type file;
+	struct device_type device;
+    }
+    u;
+    unsigned char auto_owner:1;
+    unsigned char aopen_notify:1;
+    unsigned char removable:1;  /*  Belongs in device_type, but save space   */
+    unsigned char open:1;       /*  Not entirely correct                     */
+    unsigned char autogen:1;    /*  Belongs in device_type, but save space   */
+};
+
+struct symlink_type
+{
+    unsigned int length;         /*  Not including the NULL-termimator       */
+    char *linkname;              /*  This is NULL-terminated                 */
+};
+
+struct devfs_inode     /*  This structure is for "persistent" inode storage  */
+{
+    struct dentry *dentry;
+    time_t atime;
+    time_t mtime;
+    time_t ctime;
+    unsigned int ino;            /*  Inode number as seen in the VFS         */
+    uid_t uid;
+    gid_t gid;
+};
+
+struct devfs_entry
+{
+#ifdef CONFIG_DEVFS_DEBUG
+    unsigned int magic_number;
+#endif
+    void *info;
+    atomic_t refcount;           /*  When this drops to zero, it's unused    */
+    union 
+    {
+	struct directory_type dir;
+	struct fcb_type fcb;
+	struct symlink_type symlink;
+	const char *name;        /*  Only used for (mode == 0)               */
+    }
+    u;
+    struct devfs_entry *prev;    /*  Previous entry in the parent directory  */
+    struct devfs_entry *next;    /*  Next entry in the parent directory      */
+    struct devfs_entry *parent;  /*  The parent directory                    */
+    struct devfs_entry *slave;   /*  Another entry to unregister             */
+    struct devfs_inode inode;
+    umode_t mode;
+    unsigned short namelen;      /*  I think 64k+ filenames are a way off... */
+    unsigned char hide:1;
+    unsigned char vfs_deletable:1;/*  Whether the VFS may delete the entry   */
+    char name[1];                /*  This is just a dummy: the allocated array
+				     is bigger. This is NULL-terminated      */
+};
+
+/*  The root of the device tree  */
+static struct devfs_entry *root_entry;
+
+struct devfsd_buf_entry
+{
+    struct devfs_entry *de;      /*  The name is generated with this         */
+    unsigned short type;         /*  The type of event                       */
+    umode_t mode;
+    uid_t uid;
+    gid_t gid;
+    struct devfsd_buf_entry *next;
+};
+
+struct fs_info                  /*  This structure is for the mounted devfs  */
+{
+    struct super_block *sb;
+    spinlock_t devfsd_buffer_lock;  /*  Lock when inserting/deleting events  */
+    struct devfsd_buf_entry *devfsd_first_event;
+    struct devfsd_buf_entry *devfsd_last_event;
+    volatile int devfsd_sleeping;
+    volatile struct task_struct *devfsd_task;
+    volatile pid_t devfsd_pgrp;
+    volatile struct file *devfsd_file;
+    struct devfsd_notify_struct *devfsd_info;
+    volatile unsigned long devfsd_event_mask;
+    atomic_t devfsd_overrun_count;
+    wait_queue_head_t devfsd_wait_queue;      /*  Wake devfsd on input       */
+    wait_queue_head_t revalidate_wait_queue;  /*  Wake when devfsd sleeps    */
+};
+
+static struct fs_info fs_info = {devfsd_buffer_lock: SPIN_LOCK_UNLOCKED};
+static kmem_cache_t *devfsd_buf_cache;
+#ifdef CONFIG_DEVFS_DEBUG
+static unsigned int devfs_debug_init __initdata = DEBUG_NONE;
+static unsigned int devfs_debug = DEBUG_NONE;
+static spinlock_t stat_lock = SPIN_LOCK_UNLOCKED;
+static unsigned int stat_num_entries;
+static unsigned int stat_num_bytes;
+#endif
+static unsigned char poison_array[8] =
+    {0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a};
+
+#ifdef CONFIG_DEVFS_MOUNT
+static unsigned int boot_options = OPTION_MOUNT;
+#else
+static unsigned int boot_options = OPTION_NONE;
+#endif
+
+/*  Forward function declarations  */
+static devfs_handle_t _devfs_walk_path (struct devfs_entry *dir,
+					const char *name, int namelen,
+					int traverse_symlink);
+static ssize_t devfsd_read (struct file *file, char *buf, size_t len,
+			    loff_t *ppos);
+static int devfsd_ioctl (struct inode *inode, struct file *file,
+			 unsigned int cmd, unsigned long arg);
+static int devfsd_close (struct inode *inode, struct file *file);
+#ifdef CONFIG_DEVFS_DEBUG
+static ssize_t stat_read (struct file *file, char *buf, size_t len,
+			  loff_t *ppos);
+static struct file_operations stat_fops =
+{
+    .read    = stat_read,
+};
+#endif
+
+
+/*  Devfs daemon file operations  */
+static struct file_operations devfsd_fops =
+{
+    .read    = devfsd_read,
+    .ioctl   = devfsd_ioctl,
+    .release = devfsd_close,
+};
+
+
+/*  Support functions follow  */
+
+
+/**
+ *	devfs_get - Get a reference to a devfs entry.
+ *	@de:  The devfs entry.
+ */
+
+static struct devfs_entry *devfs_get (struct devfs_entry *de)
+{
+    VERIFY_ENTRY (de);
+    if (de) atomic_inc (&de->refcount);
+    return de;
+}   /*  End Function devfs_get  */
+
+/**
+ *	devfs_put - Put (release) a reference to a devfs entry.
+ *	@de:  The handle to the devfs entry.
+ */
+
+void devfs_put (devfs_handle_t de)
+{
+    if (!de) return;
+    VERIFY_ENTRY (de);
+    if (de->info == POISON_PTR) OOPS ("(%p): poisoned pointer\n", de);
+    if ( !atomic_dec_and_test (&de->refcount) ) return;
+    if (de == root_entry) OOPS ("(%p): root entry being freed\n", de);
+    DPRINTK (DEBUG_FREE, "(%s): de: %p, parent: %p \"%s\"\n",
+	     de->name, de, de->parent,
+	     de->parent ? de->parent->name : "no parent");
+    if ( S_ISLNK (de->mode) ) kfree (de->u.symlink.linkname);
+    if ( ( S_ISCHR (de->mode) || S_ISBLK (de->mode) ) && de->u.fcb.autogen )
+    {
+	devfs_dealloc_devnum ( S_ISCHR (de->mode) ? DEVFS_SPECIAL_CHR :
+			       DEVFS_SPECIAL_BLK,
+			       mk_kdev (de->u.fcb.u.device.major,
+					de->u.fcb.u.device.minor) );
+    }
+    WRITE_ENTRY_MAGIC (de, 0);
+#ifdef CONFIG_DEVFS_DEBUG
+    spin_lock (&stat_lock);
+    --stat_num_entries;
+    stat_num_bytes -= sizeof *de + de->namelen;
+    if ( S_ISLNK (de->mode) ) stat_num_bytes -= de->u.symlink.length + 1;
+    spin_unlock (&stat_lock);
+#endif
+    de->info = POISON_PTR;
+    kfree (de);
+}   /*  End Function devfs_put  */
+
+/**
+ *	_devfs_search_dir - Search for a devfs entry in a directory.
+ *	@dir:  The directory to search.
+ *	@name:  The name of the entry to search for.
+ *	@namelen:  The number of characters in @name.
+ *
+ *  Search for a devfs entry in a directory and returns a pointer to the entry
+ *   on success, else %NULL. The directory must be locked already.
+ *   An implicit devfs_get() is performed on the returned entry.
+ */
+
+static struct devfs_entry *_devfs_search_dir (struct devfs_entry *dir,
+					      const char *name,
+					      unsigned int namelen)
+{
+    struct devfs_entry *curr;
+
+    if ( !S_ISDIR (dir->mode) )
+    {
+	PRINTK ("(%s): not a directory\n", dir->name);
+	return NULL;
+    }
+    for (curr = dir->u.dir.first; curr != NULL; curr = curr->next)
+    {
+	if (curr->namelen != namelen) continue;
+	if (memcmp (curr->name, name, namelen) == 0) break;
+	/*  Not found: try the next one  */
+    }
+    return devfs_get (curr);
+}   /*  End Function _devfs_search_dir  */
+
+
+/**
+ *	_devfs_alloc_entry - Allocate a devfs entry.
+ *	@name:  The name of the entry.
+ *	@namelen:  The number of characters in @name.
+ *
+ *  Allocate a devfs entry and returns a pointer to the entry on success, else
+ *   %NULL.
+ */
+
+static struct devfs_entry *_devfs_alloc_entry (const char *name,
+					       unsigned int namelen,
+					       umode_t mode)
+{
+    struct devfs_entry *new;
+    static unsigned long inode_counter = FIRST_INODE;
+    static spinlock_t counter_lock = SPIN_LOCK_UNLOCKED;
+
+    if ( name && (namelen < 1) ) namelen = strlen (name);
+    if ( ( new = kmalloc (sizeof *new + namelen, GFP_KERNEL) ) == NULL )
+	return NULL;
+    memset (new, 0, sizeof *new + namelen);  /*  Will set '\0' on name  */
+    new->mode = mode;
+    if ( S_ISDIR (mode) ) rwlock_init (&new->u.dir.lock);
+    atomic_set (&new->refcount, 1);
+    spin_lock (&counter_lock);
+    new->inode.ino = inode_counter++;
+    spin_unlock (&counter_lock);
+    if (name) memcpy (new->name, name, namelen);
+    new->namelen = namelen;
+    WRITE_ENTRY_MAGIC (new, MAGIC_VALUE);
+#ifdef CONFIG_DEVFS_DEBUG
+    spin_lock (&stat_lock);
+    ++stat_num_entries;
+    stat_num_bytes += sizeof *new + namelen;
+    spin_unlock (&stat_lock);
+#endif
+    return new;
+}   /*  End Function _devfs_alloc_entry  */
+
+
+/**
+ *	_devfs_append_entry - Append a devfs entry to a directory's child list.
+ *	@dir:  The directory to add to.
+ *	@de:  The devfs entry to append.
+ *	@removable: If TRUE, increment the count of removable devices for %dir.
+ *	@old_de: If an existing entry exists, it will be written here. This may
+ *		 be %NULL. An implicit devfs_get() is performed on this entry.
+ *
+ *  Append a devfs entry to a directory's list of children, checking first to
+ *   see if an entry of the same name exists. The directory will be locked.
+ *   The value 0 is returned on success, else a negative error code.
+ *   On failure, an implicit devfs_put() is performed on %de.
+ */
+
+static int _devfs_append_entry (devfs_handle_t dir, devfs_handle_t de,
+				int removable, devfs_handle_t *old_de)
+{
+    int retval;
+
+    if (old_de) *old_de = NULL;
+    if ( !S_ISDIR (dir->mode) )
+    {
+	PRINTK ("(%s): dir: \"%s\" is not a directory\n", de->name, dir->name);
+	devfs_put (de);
+	return -ENOTDIR;
+    }
+    write_lock (&dir->u.dir.lock);
+    if (dir->u.dir.no_more_additions) retval = -ENOENT;
+    else
+    {
+	struct devfs_entry *old;
+
+	old = _devfs_search_dir (dir, de->name, de->namelen);
+	if (old_de) *old_de = old;
+	else devfs_put (old);
+	if (old == NULL)
+	{
+	    de->parent = dir;
+	    de->prev = dir->u.dir.last;
+	    /*  Append to the directory's list of children  */
+	    if (dir->u.dir.first == NULL) dir->u.dir.first = de;
+	    else dir->u.dir.last->next = de;
+	    dir->u.dir.last = de;
+	    if (removable) ++dir->u.dir.num_removable;
+	    retval = 0;
+	}
+	else retval = -EEXIST;
+    }
+    write_unlock (&dir->u.dir.lock);
+    if (retval) devfs_put (de);
+    return retval;
+}   /*  End Function _devfs_append_entry  */
+
+
+/**
+ *	_devfs_get_root_entry - Get the root devfs entry.
+ *
+ *	Returns the root devfs entry on success, else %NULL.
+ */
+
+static struct devfs_entry *_devfs_get_root_entry (void)
+{
+    kdev_t devnum;
+    struct devfs_entry *new;
+    static spinlock_t root_lock = SPIN_LOCK_UNLOCKED;
+
+    /*  Always ensure the root is created  */
+    if (root_entry) return root_entry;
+    if ( ( new = _devfs_alloc_entry (NULL, 0,MODE_DIR) ) == NULL ) return NULL;
+    spin_lock (&root_lock);
+    if (root_entry)
+    {
+	spin_unlock (&root_lock);
+	devfs_put (new);
+	return (root_entry);
+    }
+    root_entry = new;
+    spin_unlock (&root_lock);
+    /*  And create the entry for ".devfsd"  */
+    if ( ( new = _devfs_alloc_entry (".devfsd", 0, S_IFCHR |S_IRUSR |S_IWUSR) )
+	 == NULL ) return NULL;
+    devnum = devfs_alloc_devnum (DEVFS_SPECIAL_CHR);
+    new->u.fcb.u.device.major = major (devnum);
+    new->u.fcb.u.device.minor = minor (devnum);
+    new->u.fcb.ops = &devfsd_fops;
+    _devfs_append_entry (root_entry, new, FALSE, NULL);
+#ifdef CONFIG_DEVFS_DEBUG
+    if ( ( new = _devfs_alloc_entry (".stat", 0, S_IFCHR | S_IRUGO | S_IWUGO) )
+	 == NULL ) return NULL;
+    devnum = devfs_alloc_devnum (DEVFS_SPECIAL_CHR);
+    new->u.fcb.u.device.major = major (devnum);
+    new->u.fcb.u.device.minor = minor (devnum);
+    new->u.fcb.ops = &stat_fops;
+    _devfs_append_entry (root_entry, new, FALSE, NULL);
+#endif
+    return root_entry;
+}   /*  End Function _devfs_get_root_entry  */
+
+
+/**
+ *	_devfs_descend - Descend down a tree using the next component name.
+ *	@dir:  The directory to search.
+ *	@name:  The component name to search for.
+ *	@namelen:  The length of %name.
+ *	@next_pos:  The position of the next '/' or '\0' is written here.
+ *
+ *  Descend into a directory, searching for a component. This function forms
+ *   the core of a tree-walking algorithm. The directory will be locked.
+ *   The devfs entry corresponding to the component is returned. If there is
+ *   no matching entry, %NULL is returned.
+ *   An implicit devfs_get() is performed on the returned entry.
+ */
+
+static struct devfs_entry *_devfs_descend (struct devfs_entry *dir,
+					   const char *name, int namelen,
+					   int *next_pos)
+{
+    const char *stop, *ptr;
+    struct devfs_entry *entry;
+
+    if ( (namelen >= 3) && (strncmp (name, "../", 3) == 0) )
+    {   /*  Special-case going to parent directory  */
+	*next_pos = 3;
+	return devfs_get (dir->parent);
+    }
+    stop = name + namelen;
+    /*  Search for a possible '/'  */
+    for (ptr = name; (ptr < stop) && (*ptr != '/'); ++ptr);
+    *next_pos = ptr - name;
+    read_lock (&dir->u.dir.lock);
+    entry = _devfs_search_dir (dir, name, *next_pos);
+    read_unlock (&dir->u.dir.lock);
+    return entry;
+}   /*  End Function _devfs_descend  */
+
+
+static devfs_handle_t _devfs_make_parent_for_leaf (struct devfs_entry *dir,
+						   const char *name,
+						   int namelen, int *leaf_pos)
+{
+    int next_pos = 0;
+
+    if (dir == NULL) dir = _devfs_get_root_entry ();
+    if (dir == NULL) return NULL;
+    devfs_get (dir);
+    /*  Search for possible trailing component and ignore it  */
+    for (--namelen; (namelen > 0) && (name[namelen] != '/'); --namelen);
+    *leaf_pos = (name[namelen] == '/') ? (namelen + 1) : 0;
+    for (; namelen > 0; name += next_pos, namelen -= next_pos)
+    {
+	struct devfs_entry *de, *old;
+
+	if ( ( de = _devfs_descend (dir, name, namelen, &next_pos) ) == NULL )
+	{
+	    de = _devfs_alloc_entry (name, next_pos, MODE_DIR);
+	    devfs_get (de);
+	    if ( !de || _devfs_append_entry (dir, de, FALSE, &old) )
+	    {
+		devfs_put (de);
+		if ( !old || !S_ISDIR (old->mode) )
+		{
+		    devfs_put (old);
+		    devfs_put (dir);
+		    return NULL;
+		}
+		de = old;  /*  Use the existing directory  */
+	    }
+	}
+	if (de == dir->parent)
+	{
+	    devfs_put (dir);
+	    devfs_put (de);
+	    return NULL;
+	}
+	devfs_put (dir);
+	dir = de;
+	if (name[next_pos] == '/') ++next_pos;
+    }
+    return dir;
+}   /*  End Function _devfs_make_parent_for_leaf  */
+
+
+static devfs_handle_t _devfs_prepare_leaf (devfs_handle_t *dir,
+					   const char *name, umode_t mode)
+{
+    int namelen, leaf_pos;
+    struct devfs_entry *de;
+
+    namelen = strlen (name);
+    if ( ( *dir = _devfs_make_parent_for_leaf (*dir, name, namelen,
+					       &leaf_pos) ) == NULL )
+    {
+	PRINTK ("(%s): could not create parent path\n", name);
+	return NULL;
+    }
+    if ( ( de = _devfs_alloc_entry (name + leaf_pos, namelen - leaf_pos,mode) )
+	 == NULL )
+    {
+	PRINTK ("(%s): could not allocate entry\n", name);
+	devfs_put (*dir);
+	return NULL;
+    }
+    return de;
+}   /*  End Function _devfs_prepare_leaf  */
+
+
+static devfs_handle_t _devfs_walk_path (struct devfs_entry *dir,
+					const char *name, int namelen,
+					int traverse_symlink)
+{
+    int next_pos = 0;
+
+    if (dir == NULL) dir = _devfs_get_root_entry ();
+    if (dir == NULL) return NULL;
+    devfs_get (dir);
+    for (; namelen > 0; name += next_pos, namelen -= next_pos)
+    {
+	struct devfs_entry *de, *link;
+
+	if ( ( de = _devfs_descend (dir, name, namelen, &next_pos) ) == NULL )
+	{
+	    devfs_put (dir);
+	    return NULL;
+	}
+	if (S_ISLNK (de->mode) && traverse_symlink)
+	{   /*  Need to follow the link: this is a stack chomper  */
+	    link = _devfs_walk_path (dir, de->u.symlink.linkname,
+				     de->u.symlink.length, TRUE);
+	    devfs_put (de);
+	    if (!link)
+	    {
+		devfs_put (dir);
+		return NULL;
+	    }
+	    de = link;
+	}
+	devfs_put (dir);
+	dir = de;
+	if (name[next_pos] == '/') ++next_pos;
+    }
+    return dir;
+}   /*  End Function _devfs_walk_path  */
+
+
+/**
+ *	_devfs_find_by_dev - Find a devfs entry in a directory.
+ *	@dir: The directory where to search
+ *	@major: The major number to search for.
+ *	@minor: The minor number to search for.
+ *	@type: The type of special file to search for. This may be either
+ *		%DEVFS_SPECIAL_CHR or %DEVFS_SPECIAL_BLK.
+ *
+ *	Returns the devfs_entry pointer on success, else %NULL. An implicit
+ *	devfs_get() is performed.
+ */
+
+static struct devfs_entry *_devfs_find_by_dev (struct devfs_entry *dir,
+					       unsigned int major,
+					       unsigned int minor, char type)
+{
+    struct devfs_entry *entry, *de;
+
+    devfs_get (dir);
+    if (dir == NULL) return NULL;
+    if ( !S_ISDIR (dir->mode) )
+    {
+	PRINTK ("(%p): not a directory\n", dir);
+	devfs_put (dir);
+	return NULL;
+    }
+    /*  First search files in this directory  */
+    read_lock (&dir->u.dir.lock);
+    for (entry = dir->u.dir.first; entry != NULL; entry = entry->next)
+    {
+	if ( !S_ISCHR (entry->mode) && !S_ISBLK (entry->mode) ) continue;
+	if ( S_ISCHR (entry->mode) && (type != DEVFS_SPECIAL_CHR) ) continue;
+	if ( S_ISBLK (entry->mode) && (type != DEVFS_SPECIAL_BLK) ) continue;
+	if ( (entry->u.fcb.u.device.major == major) &&
+	     (entry->u.fcb.u.device.minor == minor) )
+	{
+	    devfs_get (entry);
+	    read_unlock (&dir->u.dir.lock);
+	    devfs_put (dir);
+	    return entry;
+	}
+	/*  Not found: try the next one  */
+    }
+    /*  Now recursively search the subdirectories: this is a stack chomper  */
+    for (entry = dir->u.dir.first; entry != NULL; entry = entry->next)
+    {
+	if ( !S_ISDIR (entry->mode) ) continue;
+	de = _devfs_find_by_dev (entry, major, minor, type);
+	if (de)
+	{
+	    read_unlock (&dir->u.dir.lock);
+	    devfs_put (dir);
+	    return de;
+	}
+    }
+    read_unlock (&dir->u.dir.lock);
+    devfs_put (dir);
+    return NULL;
+}   /*  End Function _devfs_find_by_dev  */
+
+
+/**
+ *	_devfs_find_entry - Find a devfs entry.
+ *	@dir: The handle to the parent devfs directory entry. If this is %NULL the
+ *		name is relative to the root of the devfs.
+ *	@name: The name of the entry. This may be %NULL.
+ *	@major: The major number. This is used if lookup by @name fails.
+ *	@minor: The minor number. This is used if lookup by @name fails.
+ *		NOTE: If @major and @minor are both 0, searching by major and minor
+ *		numbers is disabled.
+ *	@type: The type of special file to search for. This may be either
+ *		%DEVFS_SPECIAL_CHR or %DEVFS_SPECIAL_BLK.
+ *	@traverse_symlink: If %TRUE then symbolic links are traversed.
+ *
+ *	Returns the devfs_entry pointer on success, else %NULL. An implicit
+ *	devfs_get() is performed.
+ */
+
+static struct devfs_entry *_devfs_find_entry (devfs_handle_t dir,
+					      const char *name,
+					      unsigned int major,
+					      unsigned int minor,
+					      char type, int traverse_symlink)
+{
+    struct devfs_entry *entry;
+
+    if (name != NULL)
+    {
+	unsigned int namelen = strlen (name);
+
+	if (name[0] == '/')
+	{
+	    /*  Skip leading pathname component  */
+	    if (namelen < 2)
+	    {
+		PRINTK ("(%s): too short\n", name);
+		return NULL;
+	    }
+	    for (++name, --namelen; (*name != '/') && (namelen > 0);
+		 ++name, --namelen);
+	    if (namelen < 2)
+	    {
+		PRINTK ("(%s): too short\n", name);
+		return NULL;
+	    }
+	    ++name;
+	    --namelen;
+	}
+	entry = _devfs_walk_path (dir, name, namelen, traverse_symlink);
+	if (entry != NULL) return entry;
+    }
+    /*  Have to search by major and minor: slow  */
+    if ( (major == 0) && (minor == 0) ) return NULL;
+    return _devfs_find_by_dev (root_entry, major, minor, type);
+}   /*  End Function _devfs_find_entry  */
+
+static struct devfs_entry *get_devfs_entry_from_vfs_inode (struct inode *inode)
+{
+    if (inode == NULL) return NULL;
+    VERIFY_ENTRY ( (struct devfs_entry *) inode->u.generic_ip );
+    return inode->u.generic_ip;
+}   /*  End Function get_devfs_entry_from_vfs_inode  */
+
+
+/**
+ *	free_dentry - Free the dentry for a device entry and invalidate inode.
+ *	@de: The entry.
+ *
+ *	This must only be called after the entry has been unhooked from it's
+ *	 parent directory.
+ */
+
+static void free_dentry (struct devfs_entry *de)
+{
+    struct dentry *dentry = de->inode.dentry;
+
+    if (!dentry) return;
+    spin_lock (&dcache_lock);
+    dget_locked (dentry);
+    spin_unlock (&dcache_lock);
+    /*  Forcefully remove the inode  */
+    if (dentry->d_inode != NULL) dentry->d_inode->i_nlink = 0;
+    d_drop (dentry);
+    dput (dentry);
+}   /*  End Function free_dentry  */
+
+
+/**
+ *	is_devfsd_or_child - Test if the current process is devfsd or one of its children.
+ *	@fs_info: The filesystem information.
+ *
+ *	Returns %TRUE if devfsd or child, else %FALSE.
+ */
+
+static int is_devfsd_or_child (struct fs_info *fs_info)
+{
+    struct task_struct *p;
+
+    if (current == fs_info->devfsd_task) return (TRUE);
+    if (current->pgrp == fs_info->devfsd_pgrp) return (TRUE);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,1)
+    for (p = current->p_opptr; p != &init_task; p = p->p_opptr)
+    {
+	if (p == fs_info->devfsd_task) return (TRUE);
+    }
+#endif
+    return (FALSE);
+}   /*  End Function is_devfsd_or_child  */
+
+
+/**
+ *	devfsd_queue_empty - Test if devfsd has work pending in its event queue.
+ *	@fs_info: The filesystem information.
+ *
+ *	Returns %TRUE if the queue is empty, else %FALSE.
+ */
+
+static inline int devfsd_queue_empty (struct fs_info *fs_info)
+{
+    return (fs_info->devfsd_last_event) ? FALSE : TRUE;
+}   /*  End Function devfsd_queue_empty  */
+
+
+/**
+ *	wait_for_devfsd_finished - Wait for devfsd to finish processing its event queue.
+ *	@fs_info: The filesystem information.
+ *
+ *	Returns %TRUE if no more waiting will be required, else %FALSE.
+ */
+
+static int wait_for_devfsd_finished (struct fs_info *fs_info)
+{
+    DECLARE_WAITQUEUE (wait, current);
+
+    if (fs_info->devfsd_task == NULL) return (TRUE);
+    if (devfsd_queue_empty (fs_info) && fs_info->devfsd_sleeping) return TRUE;
+    if ( is_devfsd_or_child (fs_info) ) return (FALSE);
+    set_current_state (TASK_UNINTERRUPTIBLE);
+    add_wait_queue (&fs_info->revalidate_wait_queue, &wait);
+    if (!devfsd_queue_empty (fs_info) || !fs_info->devfsd_sleeping)
+	if (fs_info->devfsd_task) schedule ();
+    remove_wait_queue (&fs_info->revalidate_wait_queue, &wait);
+    __set_current_state (TASK_RUNNING);
+    return (TRUE);
+}   /*  End Function wait_for_devfsd_finished  */
+
+
+/**
+ *	devfsd_notify_de - Notify the devfsd daemon of a change.
+ *	@de: The devfs entry that has changed. This and all parent entries will
+ *            have their reference counts incremented if the event was queued.
+ *	@type: The type of change.
+ *	@mode: The mode of the entry.
+ *	@uid: The user ID.
+ *	@gid: The group ID.
+ *	@fs_info: The filesystem info.
+ *
+ *	Returns %TRUE if an event was queued and devfsd woken up, else %FALSE.
+ */
+
+static int devfsd_notify_de (struct devfs_entry *de,
+			     unsigned short type, umode_t mode,
+			     uid_t uid, gid_t gid, struct fs_info *fs_info,
+			     int atomic)
+{
+    struct devfsd_buf_entry *entry;
+    struct devfs_entry *curr;
+
+    if ( !( fs_info->devfsd_event_mask & (1 << type) ) ) return (FALSE);
+    if ( ( entry = kmem_cache_alloc (devfsd_buf_cache,
+				     atomic ? SLAB_ATOMIC : SLAB_KERNEL) )
+	 == NULL )
+    {
+	atomic_inc (&fs_info->devfsd_overrun_count);
+	return (FALSE);
+    }
+    for (curr = de; curr != NULL; curr = curr->parent) devfs_get (curr);
+    entry->de = de;
+    entry->type = type;
+    entry->mode = mode;
+    entry->uid = uid;
+    entry->gid = gid;
+    entry->next = NULL;
+    spin_lock (&fs_info->devfsd_buffer_lock);
+    if (!fs_info->devfsd_first_event) fs_info->devfsd_first_event = entry;
+    if (fs_info->devfsd_last_event) fs_info->devfsd_last_event->next = entry;
+    fs_info->devfsd_last_event = entry;
+    spin_unlock (&fs_info->devfsd_buffer_lock);
+    wake_up_interruptible (&fs_info->devfsd_wait_queue);
+    return (TRUE);
+}   /*  End Function devfsd_notify_de  */
+
+
+/**
+ *	devfsd_notify - Notify the devfsd daemon of a change.
+ *	@de: The devfs entry that has changed.
+ *	@type: The type of change event.
+ *	@wait: If TRUE, the function waits for the daemon to finish processing
+ *		the event.
+ */
+
+static void devfsd_notify (struct devfs_entry *de,unsigned short type,int wait)
+{
+    if (devfsd_notify_de (de, type, de->mode, current->euid,
+			  current->egid, &fs_info, 0) && wait)
+	wait_for_devfsd_finished (&fs_info);
+}   /*  End Function devfsd_notify  */
+
+
+/**
+ *	devfs_register - Register a device entry.
+ *	@dir: The handle to the parent devfs directory entry. If this is %NULL the
+ *		new name is relative to the root of the devfs.
+ *	@name: The name of the entry.
+ *	@flags: A set of bitwise-ORed flags (DEVFS_FL_*).
+ *	@major: The major number. Not needed for regular files.
+ *	@minor: The minor number. Not needed for regular files.
+ *	@mode: The default file mode.
+ *	@ops: The &file_operations or &block_device_operations structure.
+ *		This must not be externally deallocated.
+ *	@info: An arbitrary pointer which will be written to the @private_data
+ *		field of the &file structure passed to the device driver. You can set
+ *		this to whatever you like, and change it once the file is opened (the next
+ *		file opened will not see this change).
+ *
+ *	Returns a handle which may later be used in a call to devfs_unregister().
+ *	On failure %NULL is returned.
+ */
+
+devfs_handle_t devfs_register (devfs_handle_t dir, const char *name,
+			       unsigned int flags,
+			       unsigned int major, unsigned int minor,
+			       umode_t mode, void *ops, void *info)
+{
+    char devtype = S_ISCHR (mode) ? DEVFS_SPECIAL_CHR : DEVFS_SPECIAL_BLK;
+    int err;
+    kdev_t devnum = NODEV;
+    struct devfs_entry *de;
+
+    if (name == NULL)
+    {
+	PRINTK ("(): NULL name pointer\n");
+	return NULL;
+    }
+    if (ops == NULL)
+    {
+	if ( S_ISBLK (mode) ) ops = (void *) get_blkfops (major);
+	if (ops == NULL)
+	{
+	    PRINTK ("(%s): NULL ops pointer\n", name);
+	    return NULL;
+	}
+	PRINTK ("(%s): NULL ops, got %p from major table\n", name, ops);
+    }
+    if ( S_ISDIR (mode) )
+    {
+	PRINTK ("(%s): creating directories is not allowed\n", name);
+	return NULL;
+    }
+    if ( S_ISLNK (mode) )
+    {
+	PRINTK ("(%s): creating symlinks is not allowed\n", name);
+	return NULL;
+    }
+    if ( ( S_ISCHR (mode) || S_ISBLK (mode) ) &&
+	 (flags & DEVFS_FL_AUTO_DEVNUM) )
+    {
+	if ( kdev_none ( devnum = devfs_alloc_devnum (devtype) ) )
+	{
+	    PRINTK ("(%s): exhausted %s device numbers\n",
+		    name, S_ISCHR (mode) ? "char" : "block");
+	    return NULL;
+	}
+	major = major (devnum);
+	minor = minor (devnum);
+    }
+    if ( ( de = _devfs_prepare_leaf (&dir, name, mode) ) == NULL )
+    {
+	PRINTK ("(%s): could not prepare leaf\n", name);
+	if ( !kdev_none (devnum) ) devfs_dealloc_devnum (devtype, devnum);
+	return NULL;
+    }
+    if ( S_ISCHR (mode) || S_ISBLK (mode) )
+    {
+	de->u.fcb.u.device.major = major;
+	de->u.fcb.u.device.minor = minor;
+	de->u.fcb.autogen = kdev_none (devnum) ? FALSE : TRUE;
+    }
+    else if ( !S_ISREG (mode) )
+    {
+	PRINTK ("(%s): illegal mode: %x\n", name, mode);
+	devfs_put (de);
+	devfs_put (dir);
+	return (NULL);
+    }
+    de->info = info;
+    if (flags & DEVFS_FL_CURRENT_OWNER)
+    {
+	de->inode.uid = current->uid;
+	de->inode.gid = current->gid;
+    }
+    else
+    {
+	de->inode.uid = 0;
+	de->inode.gid = 0;
+    }
+    de->u.fcb.ops = ops;
+    de->u.fcb.auto_owner = (flags & DEVFS_FL_AUTO_OWNER) ? TRUE : FALSE;
+    de->u.fcb.aopen_notify = (flags & DEVFS_FL_AOPEN_NOTIFY) ? TRUE : FALSE;
+    de->hide = (flags & DEVFS_FL_HIDE) ? TRUE : FALSE;
+    if (flags & DEVFS_FL_REMOVABLE) de->u.fcb.removable = TRUE;
+    if ( ( err = _devfs_append_entry (dir, de, de->u.fcb.removable, NULL) )
+	 != 0 )
+    {
+	PRINTK ("(%s): could not append to parent, err: %d\n", name, err);
+	devfs_put (dir);
+	if ( !kdev_none (devnum) ) devfs_dealloc_devnum (devtype, devnum);
+	return NULL;
+    }
+    DPRINTK (DEBUG_REGISTER, "(%s): de: %p dir: %p \"%s\"  pp: %p\n",
+	     name, de, dir, dir->name, dir->parent);
+    devfsd_notify (de, DEVFSD_NOTIFY_REGISTERED, flags & DEVFS_FL_WAIT);
+    devfs_put (dir);
+    return de;
+}   /*  End Function devfs_register  */
+
+
+/**
+ *	_devfs_unhook - Unhook a device entry from its parents list
+ *	@de: The entry to unhook.
+ *
+ *	Returns %TRUE if the entry was unhooked, else %FALSE if it was
+ *		previously unhooked.
+ *	The caller must have a write lock on the parent directory.
+ */
+
+static int _devfs_unhook (struct devfs_entry *de)
+{
+    struct devfs_entry *parent;
+
+    if ( !de || (de->prev == de) ) return FALSE;
+    parent = de->parent;
+    if (de->prev == NULL) parent->u.dir.first = de->next;
+    else de->prev->next = de->next;
+    if (de->next == NULL) parent->u.dir.last = de->prev;
+    else de->next->prev = de->prev;
+    de->prev = de;          /*  Indicate we're unhooked                      */
+    de->next = NULL;        /*  Force early termination for <devfs_readdir>  */
+    if ( ( S_ISREG (de->mode) || S_ISCHR (de->mode) || S_ISBLK (de->mode) ) &&
+	 de->u.fcb.removable )
+	--parent->u.dir.num_removable;
+    return TRUE;
+}   /*  End Function _devfs_unhook  */
+
+
+/**
+ *	_devfs_unregister - Unregister a device entry from it's parent.
+ *	@dir: The parent directory.
+ *	@de: The entry to unregister.
+ *
+ *	The caller must have a write lock on the parent directory, which is
+ *	unlocked by this function.
+ */
+
+static void _devfs_unregister (struct devfs_entry *dir, struct devfs_entry *de)
+{
+    int unhooked = _devfs_unhook (de);
+
+    write_unlock (&dir->u.dir.lock);
+    if (!unhooked) return;
+    devfs_get (dir);
+    devfs_unregister (de->slave);  /*  Let it handle the locking  */
+    devfsd_notify (de, DEVFSD_NOTIFY_UNREGISTERED, 0);
+    free_dentry (de);
+    devfs_put (dir);
+    if ( !S_ISDIR (de->mode) ) return;
+    while (TRUE)  /*  Recursively unregister: this is a stack chomper  */
+    {
+	struct devfs_entry *child;
+
+	write_lock (&de->u.dir.lock);
+	de->u.dir.no_more_additions = TRUE;
+	child = de->u.dir.first;
+	VERIFY_ENTRY (child);
+	_devfs_unregister (de, child);
+	if (!child) break;
+	DPRINTK (DEBUG_UNREGISTER, "(%s): child: %p  refcount: %d\n",
+		 child->name, child, atomic_read (&child->refcount) );
+	devfs_put (child);
+    }
+}   /*  End Function _devfs_unregister  */
+
+
+/**
+ *	devfs_unregister - Unregister a device entry.
+ *	@de: A handle previously created by devfs_register() or returned from
+ *		devfs_get_handle(). If this is %NULL the routine does nothing.
+ */
+
+void devfs_unregister (devfs_handle_t de)
+{
+    VERIFY_ENTRY (de);
+    if ( (de == NULL) || (de->parent == NULL) ) return;
+    DPRINTK (DEBUG_UNREGISTER, "(%s): de: %p  refcount: %d\n",
+	     de->name, de, atomic_read (&de->refcount) );
+    write_lock (&de->parent->u.dir.lock);
+    _devfs_unregister (de->parent, de);
+    devfs_put (de);
+}   /*  End Function devfs_unregister  */
+
+static int devfs_do_symlink (devfs_handle_t dir, const char *name,
+			     unsigned int flags, const char *link,
+			     devfs_handle_t *handle, void *info)
+{
+    int err;
+    unsigned int linklength;
+    char *newlink;
+    struct devfs_entry *de;
+
+    if (handle != NULL) *handle = NULL;
+    if (name == NULL)
+    {
+	PRINTK ("(): NULL name pointer\n");
+	return -EINVAL;
+    }
+    if (link == NULL)
+    {
+	PRINTK ("(%s): NULL link pointer\n", name);
+	return -EINVAL;
+    }
+    linklength = strlen (link);
+    if ( ( newlink = kmalloc (linklength + 1, GFP_KERNEL) ) == NULL )
+	return -ENOMEM;
+    memcpy (newlink, link, linklength);
+    newlink[linklength] = '\0';
+    if ( ( de = _devfs_prepare_leaf (&dir, name, S_IFLNK | S_IRUGO | S_IXUGO) )
+	 == NULL )
+    {
+	PRINTK ("(%s): could not prepare leaf\n", name);
+	kfree (newlink);
+	return -ENOTDIR;
+    }
+    de->info = info;
+    de->hide = (flags & DEVFS_FL_HIDE) ? TRUE : FALSE;
+    de->u.symlink.linkname = newlink;
+    de->u.symlink.length = linklength;
+    if ( ( err = _devfs_append_entry (dir, de, FALSE, NULL) ) != 0 )
+    {
+	PRINTK ("(%s): could not append to parent, err: %d\n", name, err);
+	devfs_put (dir);
+	return err;
+    }
+    devfs_put (dir);
+#ifdef CONFIG_DEVFS_DEBUG
+    spin_lock (&stat_lock);
+    stat_num_bytes += linklength + 1;
+    spin_unlock (&stat_lock);
+#endif
+    if (handle != NULL) *handle = de;
+    return 0;
+}   /*  End Function devfs_do_symlink  */
+
+
+/**
+ *	devfs_mk_symlink Create a symbolic link in the devfs namespace.
+ *	@dir: The handle to the parent devfs directory entry. If this is %NULL the
+ *		new name is relative to the root of the devfs.
+ *	@name: The name of the entry.
+ *	@flags: A set of bitwise-ORed flags (DEVFS_FL_*).
+ *	@link: The destination name.
+ *	@handle: The handle to the symlink entry is written here. This may be %NULL.
+ *	@info: An arbitrary pointer which will be associated with the entry.
+ *
+ *	Returns 0 on success, else a negative error code is returned.
+ */
+
+int devfs_mk_symlink (devfs_handle_t dir, const char *name, unsigned int flags,
+		      const char *link, devfs_handle_t *handle, void *info)
+{
+    int err;
+    devfs_handle_t de;
+
+    if (handle != NULL) *handle = NULL;
+    DPRINTK (DEBUG_REGISTER, "(%s)\n", name);
+    err = devfs_do_symlink (dir, name, flags, link, &de, info);
+    if (err) return err;
+    if (handle == NULL) de->vfs_deletable = TRUE;
+    else *handle = de;
+    devfsd_notify (de, DEVFSD_NOTIFY_REGISTERED, flags & DEVFS_FL_WAIT);
+    return 0;
+}   /*  End Function devfs_mk_symlink  */
+
+
+/**
+ *	devfs_mk_dir - Create a directory in the devfs namespace.
+ *	@dir: The handle to the parent devfs directory entry. If this is %NULL the
+ *		new name is relative to the root of the devfs.
+ *	@name: The name of the entry.
+ *	@info: An arbitrary pointer which will be associated with the entry.
+ *
+ *	Use of this function is optional. The devfs_register() function
+ *	will automatically create intermediate directories as needed. This function
+ *	is provided for efficiency reasons, as it provides a handle to a directory.
+ *	Returns a handle which may later be used in a call to devfs_unregister().
+ *	On failure %NULL is returned.
+ */
+
+devfs_handle_t devfs_mk_dir (devfs_handle_t dir, const char *name, void *info)
+{
+    int err;
+    struct devfs_entry *de, *old;
+
+    if (name == NULL)
+    {
+	PRINTK ("(): NULL name pointer\n");
+	return NULL;
+    }
+    if ( ( de = _devfs_prepare_leaf (&dir, name, MODE_DIR) ) == NULL )
+    {
+	PRINTK ("(%s): could not prepare leaf\n", name);
+	return NULL;
+    }
+    de->info = info;
+    if ( ( err = _devfs_append_entry (dir, de, FALSE, &old) ) != 0 )
+    {
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,1)
+	if ( old && S_ISDIR (old->mode) )
+	{
+	    PRINTK ("(%s): using old entry in dir: %p \"%s\"\n",
+		    name, dir, dir->name);
+	    old->vfs_deletable = FALSE;
+	    devfs_put (dir);
+	    return old;
+	}
+#endif
+	PRINTK ("(%s): could not append to dir: %p \"%s\", err: %d\n",
+		name, dir, dir->name, err);
+	devfs_put (old);
+	devfs_put (dir);
+	return NULL;
+    }
+    DPRINTK (DEBUG_REGISTER, "(%s): de: %p dir: %p \"%s\"\n",
+	     name, de, dir, dir->name);
+    devfsd_notify (de, DEVFSD_NOTIFY_REGISTERED, 0);
+    devfs_put (dir);
+    return de;
+}   /*  End Function devfs_mk_dir  */
+
+
+/**
+ *	devfs_get_handle - Find the handle of a devfs entry.
+ *	@dir: The handle to the parent devfs directory entry. If this is %NULL the
+ *		name is relative to the root of the devfs.
+ *	@name: The name of the entry.
+ *	@major: The major number. This is used if @name is %NULL.
+ *	@minor: The minor number. This is used if @name is %NULL.
+ *	@type: The type of special file to search for. This may be either
+ *		%DEVFS_SPECIAL_CHR or %DEVFS_SPECIAL_BLK.
+ *	@traverse_symlinks: If %TRUE then symlink entries in the devfs namespace are
+ *		traversed. Symlinks pointing out of the devfs namespace will cause a
+ *		failure. Symlink traversal consumes stack space.
+ *
+ *	Returns a handle which may later be used in a call to
+ *	devfs_unregister(), devfs_get_flags(), or devfs_set_flags(). A
+ *	subsequent devfs_put() is required to decrement the refcount.
+ *	On failure %NULL is returned.
+ */
+
+devfs_handle_t devfs_get_handle (devfs_handle_t dir, const char *name,
+				 unsigned int major, unsigned int minor,
+				 char type, int traverse_symlinks)
+{
+    if ( (name != NULL) && (name[0] == '\0') ) name = NULL;
+    return _devfs_find_entry (dir, name, major, minor, type,traverse_symlinks);
+}   /*  End Function devfs_get_handle  */
+
+
+/*  Compatibility function. Will be removed in sometime in 2.5  */
+
+devfs_handle_t devfs_find_handle (devfs_handle_t dir, const char *name,
+				  unsigned int major, unsigned int minor,
+				  char type, int traverse_symlinks)
+{
+    devfs_handle_t de;
+
+    de = devfs_get_handle (dir, name, major, minor, type, traverse_symlinks);
+    devfs_put (de);
+    return de;
+}   /*  End Function devfs_find_handle  */
+
+
+/**
+ *	devfs_get_flags - Get the flags for a devfs entry.
+ *	@de: The handle to the device entry.
+ *	@flags: The flags are written here.
+ *
+ *	Returns 0 on success, else a negative error code.
+ */
+
+int devfs_get_flags (devfs_handle_t de, unsigned int *flags)
+{
+    unsigned int fl = 0;
+
+    if (de == NULL) return -EINVAL;
+    VERIFY_ENTRY (de);
+    if (de->hide) fl |= DEVFS_FL_HIDE;
+    if ( S_ISCHR (de->mode) || S_ISBLK (de->mode) || S_ISREG (de->mode) )
+    {
+	if (de->u.fcb.auto_owner) fl |= DEVFS_FL_AUTO_OWNER;
+	if (de->u.fcb.aopen_notify) fl |= DEVFS_FL_AOPEN_NOTIFY;
+	if (de->u.fcb.removable) fl |= DEVFS_FL_REMOVABLE;
+    }
+    *flags = fl;
+    return 0;
+}   /*  End Function devfs_get_flags  */
+
+
+/*
+ *	devfs_set_flags - Set the flags for a devfs entry.
+ *	@de: The handle to the device entry.
+ *	@flags: The flags to set. Unset flags are cleared.
+ *
+ *	Returns 0 on success, else a negative error code.
+ */
+
+int devfs_set_flags (devfs_handle_t de, unsigned int flags)
+{
+    if (de == NULL) return -EINVAL;
+    VERIFY_ENTRY (de);
+    DPRINTK (DEBUG_SET_FLAGS, "(%s): flags: %x\n", de->name, flags);
+    de->hide = (flags & DEVFS_FL_HIDE) ? TRUE : FALSE;
+    if ( S_ISCHR (de->mode) || S_ISBLK (de->mode) || S_ISREG (de->mode) )
+    {
+	de->u.fcb.auto_owner = (flags & DEVFS_FL_AUTO_OWNER) ? TRUE : FALSE;
+	de->u.fcb.aopen_notify = (flags & DEVFS_FL_AOPEN_NOTIFY) ? TRUE:FALSE;
+    }
+    return 0;
+}   /*  End Function devfs_set_flags  */
+
+
+/**
+ *	devfs_get_maj_min - Get the major and minor numbers for a devfs entry.
+ *	@de: The handle to the device entry.
+ *	@major: The major number is written here. This may be %NULL.
+ *	@minor: The minor number is written here. This may be %NULL.
+ *
+ *	Returns 0 on success, else a negative error code.
+ */
+
+int devfs_get_maj_min (devfs_handle_t de, unsigned int *major,
+		       unsigned int *minor)
+{
+    if (de == NULL) return -EINVAL;
+    VERIFY_ENTRY (de);
+    if ( S_ISDIR (de->mode) ) return -EISDIR;
+    if ( !S_ISCHR (de->mode) && !S_ISBLK (de->mode) ) return -EINVAL;
+    if (major != NULL) *major = de->u.fcb.u.device.major;
+    if (minor != NULL) *minor = de->u.fcb.u.device.minor;
+    return 0;
+}   /*  End Function devfs_get_maj_min  */
+
+
+/**
+ *	devfs_get_handle_from_inode - Get the devfs handle for a VFS inode.
+ *	@inode: The VFS inode.
+ *
+ *	Returns the devfs handle on success, else %NULL.
+ */
+
+devfs_handle_t devfs_get_handle_from_inode (struct inode *inode)
+{
+    if (!inode || !inode->i_sb) return NULL;
+    if (inode->i_sb->s_magic != DEVFS_SUPER_MAGIC) return NULL;
+    return get_devfs_entry_from_vfs_inode (inode);
+}   /*  End Function devfs_get_handle_from_inode  */
+
+
+/**
+ *	devfs_generate_path - Generate a pathname for an entry, relative to the devfs root.
+ *	@de: The devfs entry.
+ *	@path: The buffer to write the pathname to. The pathname and '\0'
+ *		terminator will be written at the end of the buffer.
+ *	@buflen: The length of the buffer.
+ *
+ *	Returns the offset in the buffer where the pathname starts on success,
+ *	else a negative error code.
+ */
+
+int devfs_generate_path (devfs_handle_t de, char *path, int buflen)
+{
+    int pos;
+#define NAMEOF(de) ( (de)->mode ? (de)->name : (de)->u.name )
+
+    if (de == NULL) return -EINVAL;
+    VERIFY_ENTRY (de);
+    if (de->namelen >= buflen) return -ENAMETOOLONG; /*  Must be first       */
+    path[buflen - 1] = '\0';
+    if (de->parent == NULL) return buflen - 1;       /*  Don't prepend root  */
+    pos = buflen - de->namelen - 1;
+    memcpy (path + pos, NAMEOF (de), de->namelen);
+    for (de = de->parent; de->parent != NULL; de = de->parent)
+    {
+	if (pos - de->namelen - 1 < 0) return -ENAMETOOLONG;
+	path[--pos] = '/';
+	pos -= de->namelen;
+	memcpy (path + pos, NAMEOF (de), de->namelen);
+    }
+    return pos;
+}   /*  End Function devfs_generate_path  */
+
+
+/**
+ *	devfs_get_ops - Get the device operations for a devfs entry.
+ *	@de: The handle to the device entry.
+ *
+ *	Returns a pointer to the device operations on success, else NULL.
+ *	The use count for the module owning the operations will be incremented.
+ */
+
+void *devfs_get_ops (devfs_handle_t de)
+{
+    struct module *owner;
+
+    if (de == NULL) return NULL;
+    VERIFY_ENTRY (de);
+    if ( !S_ISCHR (de->mode) && !S_ISBLK (de->mode) && !S_ISREG (de->mode) )
+	return NULL;
+    if (de->u.fcb.ops == NULL) return NULL;
+    read_lock (&de->parent->u.dir.lock);  /*  Prevent module from unloading  */
+    if (de->next == de) owner = NULL;     /*  Ops pointer is already stale   */
+    else if ( S_ISCHR (de->mode) || S_ISREG (de->mode) )
+	owner = ( (struct file_operations *) de->u.fcb.ops )->owner;
+    else owner = ( (struct block_device_operations *) de->u.fcb.ops )->owner;
+    if ( (de->next == de) || !try_inc_mod_count (owner) )
+    {   /*  Entry is already unhooked or module is unloading  */
+	read_unlock (&de->parent->u.dir.lock);
+	return NULL;
+    }
+    read_unlock (&de->parent->u.dir.lock);  /*  Module can continue unloading*/
+    return de->u.fcb.ops;
+}   /*  End Function devfs_get_ops  */
+
+
+/**
+ *	devfs_put_ops - Put the device operations for a devfs entry.
+ *	@de: The handle to the device entry.
+ *
+ *	The use count for the module owning the operations will be decremented.
+ */
+
+void devfs_put_ops (devfs_handle_t de)
+{
+    struct module *owner;
+
+    if (de == NULL) return;
+    VERIFY_ENTRY (de);
+    if ( !S_ISCHR (de->mode) && !S_ISBLK (de->mode) && !S_ISREG (de->mode) )
+	return;
+    if (de->u.fcb.ops == NULL) return;
+    if ( S_ISCHR (de->mode) || S_ISREG (de->mode) )
+	owner = ( (struct file_operations *) de->u.fcb.ops )->owner;
+    else owner = ( (struct block_device_operations *) de->u.fcb.ops )->owner;
+    if (owner) __MOD_DEC_USE_COUNT (owner);
+}   /*  End Function devfs_put_ops  */
+
+
+/**
+ *	devfs_set_file_size - Set the file size for a devfs regular file.
+ *	@de: The handle to the device entry.
+ *	@size: The new file size.
+ *
+ *	Returns 0 on success, else a negative error code.
+ */
+
+int devfs_set_file_size (devfs_handle_t de, unsigned long size)
+{
+    if (de == NULL) return -EINVAL;
+    VERIFY_ENTRY (de);
+    if ( !S_ISREG (de->mode) ) return -EINVAL;
+    if (de->u.fcb.u.file.size == size) return 0;
+    de->u.fcb.u.file.size = size;
+    if (de->inode.dentry == NULL) return 0;
+    if (de->inode.dentry->d_inode == NULL) return 0;
+    de->inode.dentry->d_inode->i_size = size;
+    return 0;
+}   /*  End Function devfs_set_file_size  */
+
+
+/**
+ *	devfs_get_info - Get the info pointer written to private_data of @de upon open.
+ *	@de: The handle to the device entry.
+ *
+ *	Returns the info pointer.
+ */
+void *devfs_get_info (devfs_handle_t de)
+{
+    if (de == NULL) return NULL;
+    VERIFY_ENTRY (de);
+    return de->info;
+}   /*  End Function devfs_get_info  */
+
+
+/**
+ *	devfs_set_info - Set the info pointer written to private_data upon open.
+ *	@de: The handle to the device entry.
+ *	@info: pointer to the data
+ *
+ *	Returns 0 on success, else a negative error code.
+ */
+int devfs_set_info (devfs_handle_t de, void *info)
+{
+    if (de == NULL) return -EINVAL;
+    VERIFY_ENTRY (de);
+    de->info = info;
+    return 0;
+}   /*  End Function devfs_set_info  */
+
+
+/**
+ *	devfs_get_parent - Get the parent device entry.
+ *	@de: The handle to the device entry.
+ *
+ *	Returns the parent device entry if it exists, else %NULL.
+ */
+devfs_handle_t devfs_get_parent (devfs_handle_t de)
+{
+    if (de == NULL) return NULL;
+    VERIFY_ENTRY (de);
+    return de->parent;
+}   /*  End Function devfs_get_parent  */
+
+
+/**
+ *	devfs_get_first_child - Get the first leaf node in a directory.
+ *	@de: The handle to the device entry.
+ *
+ *	Returns the leaf node device entry if it exists, else %NULL.
+ */
+
+devfs_handle_t devfs_get_first_child (devfs_handle_t de)
+{
+    if (de == NULL) return NULL;
+    VERIFY_ENTRY (de);
+    if ( !S_ISDIR (de->mode) ) return NULL;
+    return de->u.dir.first;
+}   /*  End Function devfs_get_first_child  */
+
+
+/**
+ *	devfs_get_next_sibling - Get the next sibling leaf node. for a device entry.
+ *	@de: The handle to the device entry.
+ *
+ *	Returns the leaf node device entry if it exists, else %NULL.
+ */
+
+devfs_handle_t devfs_get_next_sibling (devfs_handle_t de)
+{
+    if (de == NULL) return NULL;
+    VERIFY_ENTRY (de);
+    return de->next;
+}   /*  End Function devfs_get_next_sibling  */
+
+
+/**
+ *	devfs_auto_unregister - Configure a devfs entry to be automatically unregistered.
+ *	@master: The master devfs entry. Only one slave may be registered.
+ *	@slave: The devfs entry which will be automatically unregistered when the
+ *		master entry is unregistered. It is illegal to call devfs_unregister()
+ *		on this entry.
+ */
+
+void devfs_auto_unregister (devfs_handle_t master, devfs_handle_t slave)
+{
+    if (master == NULL) return;
+    VERIFY_ENTRY (master);
+    VERIFY_ENTRY (slave);
+    if (master->slave != NULL)
+    {
+	/*  Because of the dumbness of the layers above, ignore duplicates  */
+	if (master->slave == slave) return;
+	PRINTK ("(%s): only one slave allowed\n", master->name);
+	OOPS ("():  old slave: \"%s\"  new slave: \"%s\"\n",
+	      master->slave->name, slave->name);
+    }
+    master->slave = slave;
+}   /*  End Function devfs_auto_unregister  */
+
+
+/**
+ *	devfs_get_unregister_slave - Get the slave entry which will be automatically unregistered.
+ *	@master: The master devfs entry.
+ *
+ *	Returns the slave which will be unregistered when @master is unregistered.
+ */
+
+devfs_handle_t devfs_get_unregister_slave (devfs_handle_t master)
+{
+    if (master == NULL) return NULL;
+    VERIFY_ENTRY (master);
+    return master->slave;
+}   /*  End Function devfs_get_unregister_slave  */
+
+
+/**
+ *	devfs_get_name - Get the name for a device entry in its parent directory.
+ *	@de: The handle to the device entry.
+ *	@namelen: The length of the name is written here. This may be %NULL.
+ *
+ *	Returns the name on success, else %NULL.
+ */
+
+const char *devfs_get_name (devfs_handle_t de, unsigned int *namelen)
+{
+    if (de == NULL) return NULL;
+    VERIFY_ENTRY (de);
+    if (namelen != NULL) *namelen = de->namelen;
+    return de->name;
+}   /*  End Function devfs_get_name  */
+
+
+/**
+ *	devfs_register_chrdev - Optionally register a conventional character driver.
+ *	@major: The major number for the driver.
+ *	@name: The name of the driver (as seen in /proc/devices).
+ *	@fops: The &file_operations structure pointer.
+ *
+ *	This function will register a character driver provided the "devfs=only"
+ *	option was not provided at boot time.
+ *	Returns 0 on success, else a negative error code on failure.
+ */
+
+int devfs_register_chrdev (unsigned int major, const char *name,
+			   struct file_operations *fops)
+{
+    if (boot_options & OPTION_ONLY) return 0;
+    return register_chrdev (major, name, fops);
+}   /*  End Function devfs_register_chrdev  */
+
+
+/**
+ *	devfs_register_blkdev - Optionally register a conventional block driver.
+ *	@major: The major number for the driver.
+ *	@name: The name of the driver (as seen in /proc/devices).
+ *	@bdops: The &block_device_operations structure pointer.
+ *
+ *	This function will register a block driver provided the "devfs=only"
+ *	option was not provided at boot time.
+ *	Returns 0 on success, else a negative error code on failure.
+ */
+
+int devfs_register_blkdev (unsigned int major, const char *name,
+			   struct block_device_operations *bdops)
+{
+    if (boot_options & OPTION_ONLY) return 0;
+    return register_blkdev (major, name, bdops);
+}   /*  End Function devfs_register_blkdev  */
+
+
+/**
+ *	devfs_unregister_chrdev - Optionally unregister a conventional character driver.
+ *	@major: The major number for the driver.
+ *	@name: The name of the driver (as seen in /proc/devices).
+ *
+ *	This function will unregister a character driver provided the "devfs=only"
+ *	option was not provided at boot time.
+ *	Returns 0 on success, else a negative error code on failure.
+ */
+
+int devfs_unregister_chrdev (unsigned int major, const char *name)
+{
+    if (boot_options & OPTION_ONLY) return 0;
+    return unregister_chrdev (major, name);
+}   /*  End Function devfs_unregister_chrdev  */
+
+
+/**
+ *	devfs_unregister_blkdev - Optionally unregister a conventional block driver.
+ *	@major: The major number for the driver.
+ *	@name: The name of the driver (as seen in /proc/devices).
+ *
+ *	This function will unregister a block driver provided the "devfs=only"
+ *	option was not provided at boot time.
+ *	Returns 0 on success, else a negative error code on failure.
+ */
+
+int devfs_unregister_blkdev (unsigned int major, const char *name)
+{
+    if (boot_options & OPTION_ONLY) return 0;
+    return unregister_blkdev (major, name);
+}   /*  End Function devfs_unregister_blkdev  */
+
+/**
+ *	devfs_setup - Process kernel boot options.
+ *	@str: The boot options after the "devfs=".
+ */
+
+static int __init devfs_setup (char *str)
+{
+    static struct
+    {
+	char *name;
+	unsigned int mask;
+	unsigned int *opt;
+    } devfs_options_tab[] __initdata =
+    {
+#ifdef CONFIG_DEVFS_DEBUG
+	{"dall",      DEBUG_ALL,          &devfs_debug_init},
+	{"dmod",      DEBUG_MODULE_LOAD,  &devfs_debug_init},
+	{"dreg",      DEBUG_REGISTER,     &devfs_debug_init},
+	{"dunreg",    DEBUG_UNREGISTER,   &devfs_debug_init},
+	{"dfree",     DEBUG_FREE,         &devfs_debug_init},
+	{"diget",     DEBUG_I_GET,        &devfs_debug_init},
+	{"dchange",   DEBUG_SET_FLAGS,    &devfs_debug_init},
+	{"dsread",    DEBUG_S_READ,       &devfs_debug_init},
+	{"dichange",  DEBUG_I_CHANGE,     &devfs_debug_init},
+	{"dimknod",   DEBUG_I_MKNOD,      &devfs_debug_init},
+	{"dilookup",  DEBUG_I_LOOKUP,     &devfs_debug_init},
+	{"diunlink",  DEBUG_I_UNLINK,     &devfs_debug_init},
+#endif  /*  CONFIG_DEVFS_DEBUG  */
+	{"only",      OPTION_ONLY,        &boot_options},
+	{"mount",     OPTION_MOUNT,       &boot_options},
+	{NULL,        0,                  NULL}
+    };
+
+    while ( (*str != '\0') && !isspace (*str) )
+    {
+	int i, found = 0, invert = 0;
+
+	if (strncmp (str, "no", 2) == 0)
+	{
+	    invert = 1;
+	    str += 2;
+	}
+	for (i = 0; devfs_options_tab[i].name != NULL; i++)
+	{
+	    int len = strlen (devfs_options_tab[i].name);
+
+	    if (strncmp (str, devfs_options_tab[i].name, len) == 0)
+	    {
+		if (invert)
+		    *devfs_options_tab[i].opt &= ~devfs_options_tab[i].mask;
+		else
+		    *devfs_options_tab[i].opt |= devfs_options_tab[i].mask;
+		str += len;
+		found = 1;
+		break;
+	    }
+	}
+	if (!found) return 0;       /*  No match         */
+	if (*str != ',') return 0;  /*  No more options  */
+	++str;
+    }
+    return 1;
+}   /*  End Function devfs_setup  */
+
+__setup("devfs=", devfs_setup);
+
+EXPORT_SYMBOL(devfs_put);
+EXPORT_SYMBOL(devfs_register);
+EXPORT_SYMBOL(devfs_unregister);
+EXPORT_SYMBOL(devfs_mk_symlink);
+EXPORT_SYMBOL(devfs_mk_dir);
+EXPORT_SYMBOL(devfs_get_handle);
+EXPORT_SYMBOL(devfs_find_handle);
+EXPORT_SYMBOL(devfs_get_flags);
+EXPORT_SYMBOL(devfs_set_flags);
+EXPORT_SYMBOL(devfs_get_maj_min);
+EXPORT_SYMBOL(devfs_get_handle_from_inode);
+EXPORT_SYMBOL(devfs_generate_path);
+EXPORT_SYMBOL(devfs_get_ops);
+EXPORT_SYMBOL(devfs_set_file_size);
+EXPORT_SYMBOL(devfs_get_info);
+EXPORT_SYMBOL(devfs_set_info);
+EXPORT_SYMBOL(devfs_get_parent);
+EXPORT_SYMBOL(devfs_get_first_child);
+EXPORT_SYMBOL(devfs_get_next_sibling);
+EXPORT_SYMBOL(devfs_auto_unregister);
+EXPORT_SYMBOL(devfs_get_unregister_slave);
+EXPORT_SYMBOL(devfs_get_name);
+EXPORT_SYMBOL(devfs_register_chrdev);
+EXPORT_SYMBOL(devfs_register_blkdev);
+EXPORT_SYMBOL(devfs_unregister_chrdev);
+EXPORT_SYMBOL(devfs_unregister_blkdev);
+
+
+/**
+ *	try_modload - Notify devfsd of an inode lookup by a non-devfsd process.
+ *	@parent: The parent devfs entry.
+ *	@fs_info: The filesystem info.
+ *	@name: The device name.
+ *	@namelen: The number of characters in @name.
+ *	@buf: A working area that will be used. This must not go out of scope
+ *            until devfsd is idle again.
+ *
+ *	Returns 0 on success (event was queued), else a negative error code.
+ */
+
+static int try_modload (struct devfs_entry *parent, struct fs_info *fs_info,
+			const char *name, unsigned namelen,
+			struct devfs_entry *buf)
+{
+    if ( !( fs_info->devfsd_event_mask & (1 << DEVFSD_NOTIFY_LOOKUP) ) )
+	return -ENOENT;
+    if ( is_devfsd_or_child (fs_info) ) return -ENOENT;
+    memset (buf, 0, sizeof *buf);
+    atomic_set (&buf->refcount, 1);
+    buf->parent = parent;
+    buf->namelen = namelen;
+    buf->u.name = name;
+    WRITE_ENTRY_MAGIC (buf, MAGIC_VALUE);
+    if ( !devfsd_notify_de (buf, DEVFSD_NOTIFY_LOOKUP, 0,
+			    current->euid, current->egid, fs_info, 0) )
+	return -ENOENT;
+    /*  Possible success: event has been queued  */
+    return 0;
+}   /*  End Function try_modload  */
+
+
+/**
+ *	check_disc_changed - Check if a removable disc was changed.
+ *	@de: The device.
+ *
+ *	Returns 1 if the media was changed, else 0.
+ *
+ *	This function may block, and may indirectly cause the parent directory
+ *	contents to be changed due to partition re-reading.
+ */
+
+static int check_disc_changed (struct devfs_entry *de)
+{
+    int tmp;
+    int retval = 0;
+    kdev_t dev = mk_kdev (de->u.fcb.u.device.major, de->u.fcb.u.device.minor);
+    struct block_device_operations *bdops;
+    extern int warn_no_part;
+
+    if ( !S_ISBLK (de->mode) ) return 0;
+    bdops = devfs_get_ops (de);
+    if (!bdops) return 0;
+    if (bdops->check_media_change == NULL) goto out;
+    if ( !bdops->check_media_change (dev) ) goto out;
+    retval = 1;
+    printk (KERN_DEBUG "VFS: Disk change detected on device %s\n",
+	     kdevname (dev) );
+    if ( invalidate_device (dev, 0) )
+	printk (KERN_WARNING "VFS: busy inodes on changed media..\n");
+    /*  Ugly hack to disable messages about unable to read partition table  */
+    tmp = warn_no_part;
+    warn_no_part = 0;
+    if (bdops->revalidate) bdops->revalidate (dev);
+    warn_no_part = tmp;
+out:
+    devfs_put_ops (de);
+    return retval;
+}   /*  End Function check_disc_changed  */
+
+
+/**
+ *	scan_dir_for_removable - Scan a directory for removable media devices and check media.
+ *	@dir: The directory.
+ *
+ *	This function may block, and may indirectly cause the directory
+ *	contents to be changed due to partition re-reading. The directory will
+ *	be locked for reading.
+ */
+
+static void scan_dir_for_removable (struct devfs_entry *dir)
+{
+    struct devfs_entry *de;
+
+    read_lock (&dir->u.dir.lock);
+    if (dir->u.dir.num_removable < 1) de = NULL;
+    else
+    {
+	for (de = dir->u.dir.first; de != NULL; de = de->next)
+	{
+	    if (S_ISBLK (de->mode) && de->u.fcb.removable) break;
+	}
+	devfs_get (de);
+    }
+    read_unlock (&dir->u.dir.lock);
+    if (de) check_disc_changed (de);
+    devfs_put (de);
+}   /*  End Function scan_dir_for_removable  */
+
+/**
+ *	get_removable_partition - Get removable media partition.
+ *	@dir: The parent directory.
+ *	@name: The name of the entry.
+ *	@namelen: The number of characters in <<name>>.
+ *
+ *	Returns 1 if the media was changed, else 0.
+ *
+ *	This function may block, and may indirectly cause the directory
+ *	contents to be changed due to partition re-reading. The directory must
+ *	be locked for reading upon entry, and will be unlocked upon exit.
+ */
+
+static int get_removable_partition (struct devfs_entry *dir, const char *name,
+				    unsigned int namelen)
+{
+    int retval;
+    struct devfs_entry *de;
+
+    if (dir->u.dir.num_removable < 1)
+    {
+	read_unlock (&dir->u.dir.lock);
+	return 0;
+    }
+    for (de = dir->u.dir.first; de != NULL; de = de->next)
+    {
+	if (!S_ISBLK (de->mode) || !de->u.fcb.removable) continue;
+	if (strcmp (de->name, "disc") == 0) break;
+	/*  Support for names where the partition is appended to the disc name
+	 */
+	if (de->namelen >= namelen) continue;
+	if (strncmp (de->name, name, de->namelen) == 0) break;
+    }
+    devfs_get (de);
+    read_unlock (&dir->u.dir.lock);
+    retval = de ? check_disc_changed (de) : 0;
+    devfs_put (de);
+    return retval;
+}   /*  End Function get_removable_partition  */
+
+
+/*  Superblock operations follow  */
+
+static struct inode_operations devfs_iops;
+static struct inode_operations devfs_dir_iops;
+static struct file_operations devfs_fops;
+static struct file_operations devfs_dir_fops;
+static struct inode_operations devfs_symlink_iops;
+
+static int devfs_notify_change (struct dentry *dentry, struct iattr *iattr)
+{
+    int retval;
+    struct devfs_entry *de;
+    struct inode *inode = dentry->d_inode;
+    struct fs_info *fs_info = inode->i_sb->u.generic_sbp;
+
+    de = get_devfs_entry_from_vfs_inode (inode);
+    if (de == NULL) return -ENODEV;
+    retval = inode_change_ok (inode, iattr);
+    if (retval != 0) return retval;
+    retval = inode_setattr (inode, iattr);
+    if (retval != 0) return retval;
+    DPRINTK (DEBUG_I_CHANGE, "(%d): VFS inode: %p  devfs_entry: %p\n",
+	     (int) inode->i_ino, inode, de);
+    DPRINTK (DEBUG_I_CHANGE, "():   mode: 0%o  uid: %d  gid: %d\n",
+	     (int) inode->i_mode, (int) inode->i_uid, (int) inode->i_gid);
+    /*  Inode is not on hash chains, thus must save permissions here rather
+	than in a write_inode() method  */
+    if ( ( !S_ISREG (inode->i_mode) && !S_ISCHR (inode->i_mode) &&
+	   !S_ISBLK (inode->i_mode) ) || !de->u.fcb.auto_owner )
+    {
+	de->mode = inode->i_mode;
+	de->inode.uid = inode->i_uid;
+	de->inode.gid = inode->i_gid;
+    }
+    de->inode.atime = inode->i_atime;
+    de->inode.mtime = inode->i_mtime;
+    de->inode.ctime = inode->i_ctime;
+    if ( ( iattr->ia_valid & (ATTR_MODE | ATTR_UID | ATTR_GID) ) &&
+	 !is_devfsd_or_child (fs_info) )
+	devfsd_notify_de (de, DEVFSD_NOTIFY_CHANGE, inode->i_mode,
+			  inode->i_uid, inode->i_gid, fs_info, 0);
+    return 0;
+}   /*  End Function devfs_notify_change  */
+
+static int devfs_statfs (struct super_block *sb, struct statfs *buf)
+{
+    buf->f_type = DEVFS_SUPER_MAGIC;
+    buf->f_bsize = FAKE_BLOCK_SIZE;
+    buf->f_bfree = 0;
+    buf->f_bavail = 0;
+    buf->f_ffree = 0;
+    buf->f_namelen = NAME_MAX;
+    return 0;
+}   /*  End Function devfs_statfs  */
+
+static void devfs_clear_inode (struct inode *inode)
+{
+    if ( S_ISBLK (inode->i_mode) ) bdput (inode->i_bdev);
+}   /*  End Function devfs_clear_inode  */
+
+static struct super_operations devfs_sops =
+{ 
+    .put_inode     = force_delete,
+    .clear_inode   = devfs_clear_inode,
+    .statfs        = devfs_statfs,
+};
+
+
+/**
+ *	_devfs_get_vfs_inode - Get a VFS inode.
+ *	@sb: The super block.
+ *	@de: The devfs inode.
+ *	@dentry: The dentry to register with the devfs inode.
+ *
+ *	Returns the inode on success, else %NULL. An implicit devfs_get() is
+ *       performed if the inode is created.
+ */
+
+static struct inode *_devfs_get_vfs_inode (struct super_block *sb,
+					   struct devfs_entry *de,
+					   struct dentry *dentry)
+{
+    int is_fcb = FALSE;
+    struct inode *inode;
+
+    if (de->prev == de) return NULL;  /*  Quick check to see if unhooked  */
+    if ( ( inode = new_inode (sb) ) == NULL )
+    {
+	PRINTK ("(%s): new_inode() failed, de: %p\n", de->name, de);
+	return NULL;
+    }
+    if (de->parent)
+    {
+	read_lock (&de->parent->u.dir.lock);
+	if (de->prev != de) de->inode.dentry = dentry; /*      Not unhooked  */
+	read_unlock (&de->parent->u.dir.lock);
+    }
+    else de->inode.dentry = dentry;             /*  Root: no locking needed  */
+    if (de->inode.dentry != dentry)
+    {   /*  Must have been unhooked  */
+	iput (inode);
+	return NULL;
+    }
+    inode->u.generic_ip = devfs_get (de);
+    inode->i_ino = de->inode.ino;
+    DPRINTK (DEBUG_I_GET, "(%d): VFS inode: %p  devfs_entry: %p\n",
+	     (int) inode->i_ino, inode, de);
+    inode->i_blocks = 0;
+    inode->i_blksize = FAKE_BLOCK_SIZE;
+    inode->i_op = &devfs_iops;
+    inode->i_fop = &devfs_fops;
+    inode->i_rdev = NODEV;
+    if ( S_ISCHR (de->mode) )
+    {
+	inode->i_rdev = mk_kdev (de->u.fcb.u.device.major,
+				 de->u.fcb.u.device.minor);
+	inode->i_cdev = cdget ( kdev_t_to_nr (inode->i_rdev) );
+	is_fcb = TRUE;
+    }
+    else if ( S_ISBLK (de->mode) )
+    {
+	inode->i_rdev = mk_kdev (de->u.fcb.u.device.major,
+				 de->u.fcb.u.device.minor);
+	if (bd_acquire (inode) == 0)
+	{
+	    if (!inode->i_bdev->bd_op && de->u.fcb.ops)
+		inode->i_bdev->bd_op = de->u.fcb.ops;
+	}
+	else PRINTK ("(%d): no block device from bdget()\n",(int)inode->i_ino);
+	is_fcb = TRUE;
+    }
+    else if ( S_ISFIFO (de->mode) ) inode->i_fop = &def_fifo_fops;
+    else if ( S_ISREG (de->mode) )
+    {
+	inode->i_size = de->u.fcb.u.file.size;
+	is_fcb = TRUE;
+    }
+    else if ( S_ISDIR (de->mode) )
+    {
+	inode->i_op = &devfs_dir_iops;
+    	inode->i_fop = &devfs_dir_fops;
+    }
+    else if ( S_ISLNK (de->mode) )
+    {
+	inode->i_op = &devfs_symlink_iops;
+	inode->i_size = de->u.symlink.length;
+    }
+    if (is_fcb && de->u.fcb.auto_owner)
+	inode->i_mode = (de->mode & S_IFMT) | S_IRUGO | S_IWUGO;
+    else inode->i_mode = de->mode;
+    inode->i_uid = de->inode.uid;
+    inode->i_gid = de->inode.gid;
+    inode->i_atime = de->inode.atime;
+    inode->i_mtime = de->inode.mtime;
+    inode->i_ctime = de->inode.ctime;
+    DPRINTK (DEBUG_I_GET, "():   mode: 0%o  uid: %d  gid: %d\n",
+	     (int) inode->i_mode, (int) inode->i_uid, (int) inode->i_gid);
+    return inode;
+}   /*  End Function _devfs_get_vfs_inode  */
+
+
+/*  File operations for device entries follow  */
+
+static int devfs_readdir (struct file *file, void *dirent, filldir_t filldir)
+{
+    int err, count;
+    int stored = 0;
+    struct fs_info *fs_info;
+    struct devfs_entry *parent, *de, *next = NULL;
+    struct inode *inode = file->f_dentry->d_inode;
+
+    fs_info = inode->i_sb->u.generic_sbp;
+    parent = get_devfs_entry_from_vfs_inode (file->f_dentry->d_inode);
+    if ( (long) file->f_pos < 0 ) return -EINVAL;
+    DPRINTK (DEBUG_F_READDIR, "(%s): fs_info: %p  pos: %ld\n",
+	     parent->name, fs_info, (long) file->f_pos);
+    switch ( (long) file->f_pos )
+    {
+      case 0:
+	scan_dir_for_removable (parent);
+	err = (*filldir) (dirent, "..", 2, file->f_pos,
+			  file->f_dentry->d_parent->d_inode->i_ino, DT_DIR);
+	if (err == -EINVAL) break;
+	if (err < 0) return err;
+	file->f_pos++;
+	++stored;
+	/*  Fall through  */
+      case 1:
+	err = (*filldir) (dirent, ".", 1, file->f_pos, inode->i_ino, DT_DIR);
+	if (err == -EINVAL) break;
+	if (err < 0) return err;
+	file->f_pos++;
+	++stored;
+	/*  Fall through  */
+      default:
+	/*  Skip entries  */
+	count = file->f_pos - 2;
+	read_lock (&parent->u.dir.lock);
+	for (de = parent->u.dir.first; de && (count > 0); de = de->next)
+	    if ( !IS_HIDDEN (de) ) --count;
+	devfs_get (de);
+	read_unlock (&parent->u.dir.lock);
+	/*  Now add all remaining entries  */
+	while (de)
+	{
+	    if ( IS_HIDDEN (de) ) err = 0;
+	    else
+	    {
+		err = (*filldir) (dirent, de->name, de->namelen,
+				  file->f_pos, de->inode.ino, de->mode >> 12);
+		if (err < 0) devfs_put (de);
+		else
+		{
+		    file->f_pos++;
+		    ++stored;
+		}
+	    }
+	    if (err == -EINVAL) break;
+	    if (err < 0) return err;
+	    read_lock (&parent->u.dir.lock);
+	    next = devfs_get (de->next);
+	    read_unlock (&parent->u.dir.lock);
+	    devfs_put (de);
+	    de = next;
+	}
+	break;
+    }
+    return stored;
+}   /*  End Function devfs_readdir  */
+
+static int devfs_open (struct inode *inode, struct file *file)
+{
+    int err;
+    struct fcb_type *df;
+    struct devfs_entry *de;
+    struct fs_info *fs_info = inode->i_sb->u.generic_sbp;
+    void *ops;
+
+    de = get_devfs_entry_from_vfs_inode (inode);
+    if (de == NULL) return -ENODEV;
+    if ( S_ISDIR (de->mode) ) return 0;
+    df = &de->u.fcb;
+    file->private_data = de->info;
+    ops = devfs_get_ops (de);  /*  Now have module refcount  */
+    if ( S_ISBLK (inode->i_mode) )
+    {
+	file->f_op = &def_blk_fops;
+	if (ops) inode->i_bdev->bd_op = ops;
+	err = def_blk_fops.open (inode, file); /* This bumps module refcount */
+	devfs_put_ops (de);                    /* So drop my refcount        */
+    }
+    else
+    {
+	file->f_op = ops;
+	if (file->f_op)
+	{
+	    lock_kernel ();
+	    err = file->f_op->open ? (*file->f_op->open) (inode, file) : 0;
+	    unlock_kernel ();
+	}
+	else
+	{   /*  Fallback to legacy scheme (I don't have a module refcount)  */
+	    if ( S_ISCHR (inode->i_mode) ) err = chrdev_open (inode, file);
+	    else err = -ENODEV;
+	}
+    }
+    if (err < 0) return err;
+    /*  Open was successful  */
+    if (df->open) return 0;
+    df->open = TRUE;  /*  This is the first open  */
+    if (df->auto_owner)
+    {
+	/*  Change the ownership/protection to what driver specified  */
+	inode->i_mode = de->mode;
+	inode->i_uid = current->euid;
+	inode->i_gid = current->egid;
+    }
+    if ( df->aopen_notify && !is_devfsd_or_child (fs_info) )
+	devfsd_notify_de (de, DEVFSD_NOTIFY_ASYNC_OPEN, inode->i_mode,
+			  current->euid, current->egid, fs_info, 0);
+    return 0;
+}   /*  End Function devfs_open  */
+
+static struct file_operations devfs_fops =
+{
+    .open    = devfs_open,
+};
+
+static struct file_operations devfs_dir_fops =
+{
+    .read    = generic_read_dir,
+    .readdir = devfs_readdir,
+    .open    = devfs_open,
+};
+
+
+/*  Dentry operations for device entries follow  */
+
+
+/**
+ *	devfs_d_release - Callback for when a dentry is freed.
+ *	@dentry: The dentry.
+ */
+
+static void devfs_d_release (struct dentry *dentry)
+{
+    DPRINTK (DEBUG_D_RELEASE, "(%p): inode: %p\n", dentry, dentry->d_inode);
+}   /*  End Function devfs_d_release  */
+
+/**
+ *	devfs_d_iput - Callback for when a dentry loses its inode.
+ *	@dentry: The dentry.
+ *	@inode:	The inode.
+ */
+
+static void devfs_d_iput (struct dentry *dentry, struct inode *inode)
+{
+    struct devfs_entry *de;
+
+    de = get_devfs_entry_from_vfs_inode (inode);
+    DPRINTK (DEBUG_D_IPUT,"(%s): dentry: %p inode: %p de: %p de->dentry: %p\n",
+	     de->name, dentry, inode, de, de->inode.dentry);
+    if ( de->inode.dentry && (de->inode.dentry != dentry) )
+	OOPS ("(%s): de: %p dentry: %p de->dentry: %p\n",
+	      de->name, de, dentry, de->inode.dentry);
+    de->inode.dentry = NULL;
+    iput (inode);
+    devfs_put (de);
+}   /*  End Function devfs_d_iput  */
+
+static int devfs_d_delete (struct dentry *dentry);
+
+static struct dentry_operations devfs_dops =
+{
+    .d_delete     = devfs_d_delete,
+    .d_release    = devfs_d_release,
+    .d_iput       = devfs_d_iput,
+};
+
+static int devfs_d_revalidate_wait (struct dentry *dentry, int flags);
+
+static struct dentry_operations devfs_wait_dops =
+{
+    .d_delete     = devfs_d_delete,
+    .d_release    = devfs_d_release,
+    .d_iput       = devfs_d_iput,
+    .d_revalidate = devfs_d_revalidate_wait,
+};
+
+/**
+ *	devfs_d_delete - Callback for when all files for a dentry are closed.
+ *	@dentry: The dentry.
+ */
+
+static int devfs_d_delete (struct dentry *dentry)
+{
+    struct inode *inode = dentry->d_inode;
+    struct devfs_entry *de;
+    struct fs_info *fs_info;
+
+    if (dentry->d_op == &devfs_wait_dops) dentry->d_op = &devfs_dops;
+    /*  Unhash dentry if negative (has no inode)  */
+    if (inode == NULL)
+    {
+	DPRINTK (DEBUG_D_DELETE, "(%p): dropping negative dentry\n", dentry);
+	return 1;
+    }
+    fs_info = inode->i_sb->u.generic_sbp;
+    de = get_devfs_entry_from_vfs_inode (inode);
+    DPRINTK (DEBUG_D_DELETE, "(%p): inode: %p  devfs_entry: %p\n",
+	     dentry, inode, de);
+    if (de == NULL) return 0;
+    if ( !S_ISCHR (de->mode) && !S_ISBLK (de->mode) && !S_ISREG (de->mode) )
+	return 0;
+    if (!de->u.fcb.open) return 0;
+    de->u.fcb.open = FALSE;
+    if (de->u.fcb.aopen_notify)
+	devfsd_notify_de (de, DEVFSD_NOTIFY_CLOSE, inode->i_mode,
+			  current->euid, current->egid, fs_info, 1);
+    if (!de->u.fcb.auto_owner) return 0;
+    /*  Change the ownership/protection back  */
+    inode->i_mode = (de->mode & S_IFMT) | S_IRUGO | S_IWUGO;
+    inode->i_uid = de->inode.uid;
+    inode->i_gid = de->inode.gid;
+    return 0;
+}   /*  End Function devfs_d_delete  */
+
+struct devfs_lookup_struct
+{
+    devfs_handle_t de;
+    wait_queue_head_t wait_queue;
+};
+
+static int devfs_d_revalidate_wait (struct dentry *dentry, int flags)
+{
+    struct inode *dir = dentry->d_parent->d_inode;
+    struct fs_info *fs_info = dir->i_sb->u.generic_sbp;
+    devfs_handle_t parent = get_devfs_entry_from_vfs_inode (dir);
+    struct devfs_lookup_struct *lookup_info = dentry->d_fsdata;
+    DECLARE_WAITQUEUE (wait, current);
+
+    if ( is_devfsd_or_child (fs_info) )
+    {
+	devfs_handle_t de = lookup_info->de;
+	struct inode *inode;
+
+	DPRINTK (DEBUG_I_LOOKUP,
+		 "(%s): dentry: %p inode: %p de: %p by: \"%s\"\n",
+		 dentry->d_name.name, dentry, dentry->d_inode, de,
+		 current->comm);
+	if (dentry->d_inode) return 1;
+	if (de == NULL)
+	{
+	    read_lock (&parent->u.dir.lock);
+	    de = _devfs_search_dir (parent, dentry->d_name.name,
+				    dentry->d_name.len);
+	    read_unlock (&parent->u.dir.lock);
+	    if (de == NULL) return 1;
+	    lookup_info->de = de;
+	}
+	/*  Create an inode, now that the driver information is available  */
+	inode = _devfs_get_vfs_inode (dir->i_sb, de, dentry);
+	if (!inode) return 1;
+	DPRINTK (DEBUG_I_LOOKUP,
+		 "(%s): new VFS inode(%u): %p de: %p by: \"%s\"\n",
+		 de->name, de->inode.ino, inode, de, current->comm);
+	d_instantiate (dentry, inode);
+	return 1;
+    }
+    if (lookup_info == NULL) return 1;  /*  Early termination  */
+    read_lock (&parent->u.dir.lock);
+    if (dentry->d_fsdata)
+    {
+	set_current_state (TASK_UNINTERRUPTIBLE);
+	add_wait_queue (&lookup_info->wait_queue, &wait);
+	read_unlock (&parent->u.dir.lock);
+	schedule ();
+    }
+    else read_unlock (&parent->u.dir.lock);
+    return 1;
+}   /*  End Function devfs_d_revalidate_wait  */
+
+
+/*  Inode operations for device entries follow  */
+
+static struct dentry *devfs_lookup (struct inode *dir, struct dentry *dentry)
+{
+    struct devfs_entry tmp;  /*  Must stay in scope until devfsd idle again  */
+    struct devfs_lookup_struct lookup_info;
+    struct fs_info *fs_info = dir->i_sb->u.generic_sbp;
+    struct devfs_entry *parent, *de;
+    struct inode *inode;
+    struct dentry *retval = NULL;
+
+    /*  Set up the dentry operations before anything else, to ensure cleaning
+	up on any error  */
+    dentry->d_op = &devfs_dops;
+    /*  First try to get the devfs entry for this directory  */
+    parent = get_devfs_entry_from_vfs_inode (dir);
+    DPRINTK (DEBUG_I_LOOKUP, "(%s): dentry: %p parent: %p by: \"%s\"\n",
+	     dentry->d_name.name, dentry, parent, current->comm);
+    if (parent == NULL) return ERR_PTR (-ENOENT);
+    read_lock (&parent->u.dir.lock);
+    de = _devfs_search_dir (parent, dentry->d_name.name, dentry->d_name.len);
+    if (de) read_unlock (&parent->u.dir.lock);
+    else
+    {   /*  Try re-reading the partition (media may have changed)  */
+	if ( get_removable_partition (parent, dentry->d_name.name,
+				      dentry->d_name.len) )  /*  Unlocks  */
+	{   /*  Media did change  */
+	    read_lock (&parent->u.dir.lock);
+	    de = _devfs_search_dir (parent, dentry->d_name.name,
+				    dentry->d_name.len);
+	    read_unlock (&parent->u.dir.lock);
+	}
+    }
+    lookup_info.de = de;
+    init_waitqueue_head (&lookup_info.wait_queue);
+    dentry->d_fsdata = &lookup_info;
+    if (de == NULL)
+    {   /*  Try with devfsd. For any kind of failure, leave a negative dentry
+	    so someone else can deal with it (in the case where the sysadmin
+	    does a mknod()). It's important to do this before hashing the
+	    dentry, so that the devfsd queue is filled before revalidates
+	    can start  */
+	if (try_modload (parent, fs_info,
+			 dentry->d_name.name, dentry->d_name.len, &tmp) < 0)
+	{   /*  Lookup event was not queued to devfsd  */
+	    d_add (dentry, NULL);
+	    return NULL;
+	}
+    }
+    dentry->d_op = &devfs_wait_dops;
+    d_add (dentry, NULL);  /*  Open the floodgates  */
+    /*  Unlock directory semaphore, which will release any waiters. They
+	will get the hashed dentry, and may be forced to wait for
+	revalidation  */
+    up (&dir->i_sem);
+    wait_for_devfsd_finished (fs_info);  /*  If I'm not devfsd, must wait  */
+    down (&dir->i_sem);      /*  Grab it again because them's the rules  */
+    de = lookup_info.de;
+    /*  If someone else has been so kind as to make the inode, we go home
+	early  */
+    if (dentry->d_inode) goto out;
+    if (de == NULL)
+    {
+	read_lock (&parent->u.dir.lock);
+	de = _devfs_search_dir (parent, dentry->d_name.name,
+				dentry->d_name.len);
+	read_unlock (&parent->u.dir.lock);
+	if (de == NULL) goto out;
+	/*  OK, there's an entry now, but no VFS inode yet  */
+    }
+    /*  Create an inode, now that the driver information is available  */
+    inode = _devfs_get_vfs_inode (dir->i_sb, de, dentry);
+    if (!inode)
+    {
+	retval = ERR_PTR (-ENOMEM);
+	goto out;
+    }
+    DPRINTK (DEBUG_I_LOOKUP, "(%s): new VFS inode(%u): %p de: %p by: \"%s\"\n",
+	     de->name, de->inode.ino, inode, de, current->comm);
+    d_instantiate (dentry, inode);
+out:
+    dentry->d_op = &devfs_dops;
+    dentry->d_fsdata = NULL;
+    write_lock (&parent->u.dir.lock);
+    wake_up (&lookup_info.wait_queue);
+    write_unlock (&parent->u.dir.lock);
+    devfs_put (de);
+    return retval;
+}   /*  End Function devfs_lookup  */
+
+static int devfs_unlink (struct inode *dir, struct dentry *dentry)
+{
+    int unhooked;
+    struct devfs_entry *de;
+    struct inode *inode = dentry->d_inode;
+    struct fs_info *fs_info = dir->i_sb->u.generic_sbp;
+
+    de = get_devfs_entry_from_vfs_inode (inode);
+    DPRINTK (DEBUG_I_UNLINK, "(%s): de: %p\n", dentry->d_name.name, de);
+    if (de == NULL) return -ENOENT;
+    if (!de->vfs_deletable) return -EPERM;
+    write_lock (&de->parent->u.dir.lock);
+    unhooked = _devfs_unhook (de);
+    write_unlock (&de->parent->u.dir.lock);
+    if (!unhooked) return -ENOENT;
+    if ( !is_devfsd_or_child (fs_info) )
+	devfsd_notify_de (de, DEVFSD_NOTIFY_DELETE, inode->i_mode,
+			  inode->i_uid, inode->i_gid, fs_info, 0);
+    free_dentry (de);
+    devfs_put (de);
+    return 0;
+}   /*  End Function devfs_unlink  */
+
+static int devfs_symlink (struct inode *dir, struct dentry *dentry,
+			  const char *symname)
+{
+    int err;
+    struct fs_info *fs_info = dir->i_sb->u.generic_sbp;
+    struct devfs_entry *parent, *de;
+    struct inode *inode;
+
+    /*  First try to get the devfs entry for this directory  */
+    parent = get_devfs_entry_from_vfs_inode (dir);
+    if (parent == NULL) return -ENOENT;
+    err = devfs_do_symlink (parent, dentry->d_name.name, DEVFS_FL_NONE,
+			    symname, &de, NULL);
+    DPRINTK (DEBUG_DISABLED, "(%s): errcode from <devfs_do_symlink>: %d\n",
+	     dentry->d_name.name, err);
+    if (err < 0) return err;
+    de->vfs_deletable = TRUE;
+    de->inode.uid = current->euid;
+    de->inode.gid = current->egid;
+    de->inode.atime = CURRENT_TIME;
+    de->inode.mtime = CURRENT_TIME;
+    de->inode.ctime = CURRENT_TIME;
+    if ( ( inode = _devfs_get_vfs_inode (dir->i_sb, de, dentry) ) == NULL )
+	return -ENOMEM;
+    DPRINTK (DEBUG_DISABLED, "(%s): new VFS inode(%u): %p  dentry: %p\n",
+	     dentry->d_name.name, de->inode.ino, inode, dentry);
+    d_instantiate (dentry, inode);
+    if ( !is_devfsd_or_child (fs_info) )
+	devfsd_notify_de (de, DEVFSD_NOTIFY_CREATE, inode->i_mode,
+			  inode->i_uid, inode->i_gid, fs_info, 0);
+    return 0;
+}   /*  End Function devfs_symlink  */
+
+static int devfs_mkdir (struct inode *dir, struct dentry *dentry, int mode)
+{
+    int err;
+    struct fs_info *fs_info = dir->i_sb->u.generic_sbp;
+    struct devfs_entry *parent, *de;
+    struct inode *inode;
+
+    mode = (mode & ~S_IFMT) | S_IFDIR;  /*  VFS doesn't pass S_IFMT part  */
+    parent = get_devfs_entry_from_vfs_inode (dir);
+    if (parent == NULL) return -ENOENT;
+    de = _devfs_alloc_entry (dentry->d_name.name, dentry->d_name.len, mode);
+    if (!de) return -ENOMEM;
+    de->vfs_deletable = TRUE;
+    if ( ( err = _devfs_append_entry (parent, de, FALSE, NULL) ) != 0 )
+	return err;
+    de->inode.uid = current->euid;
+    de->inode.gid = current->egid;
+    de->inode.atime = CURRENT_TIME;
+    de->inode.mtime = CURRENT_TIME;
+    de->inode.ctime = CURRENT_TIME;
+    if ( ( inode = _devfs_get_vfs_inode (dir->i_sb, de, dentry) ) == NULL )
+	return -ENOMEM;
+    DPRINTK (DEBUG_DISABLED, "(%s): new VFS inode(%u): %p  dentry: %p\n",
+	     dentry->d_name.name, de->inode.ino, inode, dentry);
+    d_instantiate (dentry, inode);
+    if ( !is_devfsd_or_child (fs_info) )
+	devfsd_notify_de (de, DEVFSD_NOTIFY_CREATE, inode->i_mode,
+			  inode->i_uid, inode->i_gid, fs_info, 0);
+    return 0;
+}   /*  End Function devfs_mkdir  */
+
+static int devfs_rmdir (struct inode *dir, struct dentry *dentry)
+{
+    int err = 0;
+    struct devfs_entry *de;
+    struct fs_info *fs_info = dir->i_sb->u.generic_sbp;
+    struct inode *inode = dentry->d_inode;
+
+    if (dir->i_sb->u.generic_sbp != inode->i_sb->u.generic_sbp) return -EINVAL;
+    de = get_devfs_entry_from_vfs_inode (inode);
+    if (de == NULL) return -ENOENT;
+    if ( !S_ISDIR (de->mode) ) return -ENOTDIR;
+    if (!de->vfs_deletable) return -EPERM;
+    /*  First ensure the directory is empty and will stay that way  */
+    write_lock (&de->u.dir.lock);
+    if (de->u.dir.first) err = -ENOTEMPTY;
+    else de->u.dir.no_more_additions = TRUE;
+    write_unlock (&de->u.dir.lock);
+    if (err) return err;
+    /*  Now unhook the directory from it's parent  */
+    write_lock (&de->parent->u.dir.lock);
+    if ( !_devfs_unhook (de) ) err = -ENOENT;
+    write_unlock (&de->parent->u.dir.lock);
+    if (err) return err;
+    if ( !is_devfsd_or_child (fs_info) )
+	devfsd_notify_de (de, DEVFSD_NOTIFY_DELETE, inode->i_mode,
+			  inode->i_uid, inode->i_gid, fs_info, 0);
+    free_dentry (de);
+    devfs_put (de);
+    return 0;
+}   /*  End Function devfs_rmdir  */
+
+static int devfs_mknod (struct inode *dir, struct dentry *dentry, int mode,
+			int rdev)
+{
+    int err;
+    struct fs_info *fs_info = dir->i_sb->u.generic_sbp;
+    struct devfs_entry *parent, *de;
+    struct inode *inode;
+
+    DPRINTK (DEBUG_I_MKNOD, "(%s): mode: 0%o  dev: %d\n",
+	     dentry->d_name.name, mode, rdev);
+    parent = get_devfs_entry_from_vfs_inode (dir);
+    if (parent == NULL) return -ENOENT;
+    de = _devfs_alloc_entry (dentry->d_name.name, dentry->d_name.len, mode);
+    if (!de) return -ENOMEM;
+    de->vfs_deletable = TRUE;
+    if ( S_ISBLK (mode) || S_ISCHR (mode) )
+    {
+	de->u.fcb.u.device.major = MAJOR (rdev);
+	de->u.fcb.u.device.minor = MINOR (rdev);
+    }
+    if ( ( err = _devfs_append_entry (parent, de, FALSE, NULL) ) != 0 )
+	return err;
+    de->inode.uid = current->euid;
+    de->inode.gid = current->egid;
+    de->inode.atime = CURRENT_TIME;
+    de->inode.mtime = CURRENT_TIME;
+    de->inode.ctime = CURRENT_TIME;
+    if ( ( inode = _devfs_get_vfs_inode (dir->i_sb, de, dentry) ) == NULL )
+	return -ENOMEM;
+    DPRINTK (DEBUG_I_MKNOD, ":   new VFS inode(%u): %p  dentry: %p\n",
+	     de->inode.ino, inode, dentry);
+    d_instantiate (dentry, inode);
+    if ( !is_devfsd_or_child (fs_info) )
+	devfsd_notify_de (de, DEVFSD_NOTIFY_CREATE, inode->i_mode,
+			  inode->i_uid, inode->i_gid, fs_info, 0);
+    return 0;
+}   /*  End Function devfs_mknod  */
+
+static int devfs_readlink (struct dentry *dentry, char *buffer, int buflen)
+{
+    int err;
+    struct devfs_entry *de;
+
+    de = get_devfs_entry_from_vfs_inode (dentry->d_inode);
+    if (!de) return -ENODEV;
+    err = vfs_readlink (dentry, buffer, buflen, de->u.symlink.linkname);
+    return err;
+}   /*  End Function devfs_readlink  */
+
+static int devfs_follow_link (struct dentry *dentry, struct nameidata *nd)
+{
+    int err;
+    struct devfs_entry *de;
+
+    de = get_devfs_entry_from_vfs_inode (dentry->d_inode);
+    if (!de) return -ENODEV;
+    err = vfs_follow_link (nd, de->u.symlink.linkname);
+    return err;
+}   /*  End Function devfs_follow_link  */
+
+static struct inode_operations devfs_iops =
+{
+    .setattr        = devfs_notify_change,
+};
+
+static struct inode_operations devfs_dir_iops =
+{
+    .lookup         = devfs_lookup,
+    .unlink         = devfs_unlink,
+    .symlink        = devfs_symlink,
+    .mkdir          = devfs_mkdir,
+    .rmdir          = devfs_rmdir,
+    .mknod          = devfs_mknod,
+    .setattr        = devfs_notify_change,
+};
+
+static struct inode_operations devfs_symlink_iops =
+{
+    .readlink       = devfs_readlink,
+    .follow_link    = devfs_follow_link,
+    .setattr        = devfs_notify_change,
+};
+
+static struct super_block *devfs_read_super (struct super_block *sb,
+					     void *data, int silent)
+{
+    struct inode *root_inode = NULL;
+
+    if (_devfs_get_root_entry () == NULL) goto out_no_root;
+    atomic_set (&fs_info.devfsd_overrun_count, 0);
+    init_waitqueue_head (&fs_info.devfsd_wait_queue);
+    init_waitqueue_head (&fs_info.revalidate_wait_queue);
+    fs_info.sb = sb;
+    sb->u.generic_sbp = &fs_info;
+    sb->s_blocksize = 1024;
+    sb->s_blocksize_bits = 10;
+    sb->s_magic = DEVFS_SUPER_MAGIC;
+    sb->s_op = &devfs_sops;
+    if ( ( root_inode = _devfs_get_vfs_inode (sb, root_entry, NULL) ) == NULL )
+	goto out_no_root;
+    sb->s_root = d_alloc_root (root_inode);
+    if (!sb->s_root) goto out_no_root;
+    DPRINTK (DEBUG_S_READ, "(): made devfs ptr: %p\n", sb->u.generic_sbp);
+    return sb;
+
+out_no_root:
+    PRINTK ("(): get root inode failed\n");
+    if (root_inode) iput (root_inode);
+    return NULL;
+}   /*  End Function devfs_read_super  */
+
+
+static DECLARE_FSTYPE (devfs_fs_type, DEVFS_NAME, devfs_read_super, FS_SINGLE);
+
+
+/*  File operations for devfsd follow  */
+
+static ssize_t devfsd_read (struct file *file, char *buf, size_t len,
+			    loff_t *ppos)
+{
+    int done = FALSE;
+    int ival;
+    loff_t pos, devname_offset, tlen, rpos, old_pos;
+    devfs_handle_t de;
+    struct devfsd_buf_entry *entry;
+    struct fs_info *fs_info = file->f_dentry->d_inode->i_sb->u.generic_sbp;
+    struct devfsd_notify_struct *info = fs_info->devfsd_info;
+    DECLARE_WAITQUEUE (wait, current);
+
+    /*  Can't seek (pread) on this device  */
+    if (ppos != &file->f_pos) return -ESPIPE;
+    /*  Verify the task has grabbed the queue  */
+    if (fs_info->devfsd_task != current) return -EPERM;
+    info->major = 0;
+    info->minor = 0;
+    /*  Block for a new entry  */
+    set_current_state (TASK_INTERRUPTIBLE);
+    add_wait_queue (&fs_info->devfsd_wait_queue, &wait);
+    while ( devfsd_queue_empty (fs_info) )
+    {
+	fs_info->devfsd_sleeping = TRUE;
+	wake_up (&fs_info->revalidate_wait_queue);
+	schedule ();
+	fs_info->devfsd_sleeping = FALSE;
+	if ( signal_pending (current) )
+	{
+	    remove_wait_queue (&fs_info->devfsd_wait_queue, &wait);
+	    __set_current_state (TASK_RUNNING);
+	    return -EINTR;
+	}
+	set_current_state (TASK_INTERRUPTIBLE);
+    }
+    remove_wait_queue (&fs_info->devfsd_wait_queue, &wait);
+    __set_current_state (TASK_RUNNING);
+    /*  Now play with the data  */
+    ival = atomic_read (&fs_info->devfsd_overrun_count);
+    info->overrun_count = ival;
+    entry = fs_info->devfsd_first_event;
+    info->type = entry->type;
+    info->mode = entry->mode;
+    info->uid = entry->uid;
+    info->gid = entry->gid;
+    de = entry->de;
+    if ( S_ISCHR (de->mode) || S_ISBLK (de->mode) )
+    {
+	info->major = de->u.fcb.u.device.major;
+	info->minor = de->u.fcb.u.device.minor;
+    }
+    pos = devfs_generate_path (de, info->devname, DEVFS_PATHLEN);
+    if (pos < 0) return pos;
+    info->namelen = DEVFS_PATHLEN - pos - 1;
+    if (info->mode == 0) info->mode = de->mode;
+    devname_offset = info->devname - (char *) info;
+    old_pos = rpos = *ppos;
+    if (rpos >= 0 && rpos < devname_offset)
+    {
+	/*  Copy parts of the header  */
+	tlen = devname_offset - rpos;
+	if (tlen > len) tlen = len;
+	if ( copy_to_user (buf, (char *) info + rpos, tlen) )
+	{
+	    return -EFAULT;
+	}
+	rpos += tlen;
+	buf += tlen;
+	len -= tlen;
+    }
+    if ( (rpos >= devname_offset) && (len > 0) )
+    {
+	/*  Copy the name  */
+	tlen = info->namelen + 1;
+	if (tlen > len) tlen = len;
+	else done = TRUE;
+	if ( copy_to_user (buf, info->devname + pos + rpos - devname_offset,
+			   tlen) )
+	{
+	    return -EFAULT;
+	}
+	rpos += tlen;
+    }
+    tlen = rpos - old_pos;
+    if (done)
+    {
+	devfs_handle_t parent;
+
+	spin_lock (&fs_info->devfsd_buffer_lock);
+	fs_info->devfsd_first_event = entry->next;
+	if (entry->next == NULL) fs_info->devfsd_last_event = NULL;
+	spin_unlock (&fs_info->devfsd_buffer_lock);
+	for (; de != NULL; de = parent)
+	{
+	    parent = de->parent;
+	    devfs_put (de);
+	}
+	kmem_cache_free (devfsd_buf_cache, entry);
+	if (ival > 0) atomic_sub (ival, &fs_info->devfsd_overrun_count);
+	*ppos = 0;
+    }
+    else *ppos = rpos;
+    return tlen;
+}   /*  End Function devfsd_read  */
+
+static int devfsd_ioctl (struct inode *inode, struct file *file,
+			 unsigned int cmd, unsigned long arg)
+{
+    int ival;
+    struct fs_info *fs_info = inode->i_sb->u.generic_sbp;
+
+    switch (cmd)
+    {
+      case DEVFSDIOC_GET_PROTO_REV:
+	ival = DEVFSD_PROTOCOL_REVISION_KERNEL;
+	if ( copy_to_user ( (void *)arg, &ival, sizeof ival ) ) return -EFAULT;
+	break;
+      case DEVFSDIOC_SET_EVENT_MASK:
+	/*  Ensure only one reader has access to the queue. This scheme will
+	    work even if the global kernel lock were to be removed, because it
+	    doesn't matter who gets in first, as long as only one gets it  */
+	if (fs_info->devfsd_task == NULL)
+	{
+	    static spinlock_t lock = SPIN_LOCK_UNLOCKED;
+
+	    if ( !spin_trylock (&lock) ) return -EBUSY;
+	    if (fs_info->devfsd_task != NULL)
+	    {   /*  We lost the race...  */
+		spin_unlock (&lock);
+		return -EBUSY;
+	    }
+	    fs_info->devfsd_task = current;
+	    spin_unlock (&lock);
+	    fs_info->devfsd_pgrp = (current->pgrp == current->pid) ?
+		current->pgrp : 0;
+	    fs_info->devfsd_file = file;
+	    fs_info->devfsd_info = kmalloc (sizeof *fs_info->devfsd_info,
+					    GFP_KERNEL);
+	    if (!fs_info->devfsd_info)
+	    {
+		devfsd_close (inode, file);
+		return -ENOMEM;
+	    }
+	}
+	else if (fs_info->devfsd_task != current) return -EBUSY;
+	fs_info->devfsd_event_mask = arg;  /*  Let the masses come forth  */
+	break;
+      case DEVFSDIOC_RELEASE_EVENT_QUEUE:
+	if (fs_info->devfsd_file != file) return -EPERM;
+	return devfsd_close (inode, file);
+	/*break;*/
+#ifdef CONFIG_DEVFS_DEBUG
+      case DEVFSDIOC_SET_DEBUG_MASK:
+	if ( copy_from_user (&ival, (void *) arg, sizeof ival) )return -EFAULT;
+	devfs_debug = ival;
+	break;
+#endif
+      default:
+	return -ENOIOCTLCMD;
+    }
+    return 0;
+}   /*  End Function devfsd_ioctl  */
+
+static int devfsd_close (struct inode *inode, struct file *file)
+{
+    struct devfsd_buf_entry *entry, *next;
+    struct fs_info *fs_info = inode->i_sb->u.generic_sbp;
+
+    if (fs_info->devfsd_file != file) return 0;
+    fs_info->devfsd_event_mask = 0;
+    fs_info->devfsd_file = NULL;
+    spin_lock (&fs_info->devfsd_buffer_lock);
+    entry = fs_info->devfsd_first_event;
+    fs_info->devfsd_first_event = NULL;
+    fs_info->devfsd_last_event = NULL;
+    if (fs_info->devfsd_info)
+    {
+	kfree (fs_info->devfsd_info);
+	fs_info->devfsd_info = NULL;
+    }
+    spin_unlock (&fs_info->devfsd_buffer_lock);
+    fs_info->devfsd_pgrp = 0;
+    fs_info->devfsd_task = NULL;
+    wake_up (&fs_info->revalidate_wait_queue);
+    for (; entry; entry = next)
+    {
+	next = entry->next;
+	kmem_cache_free (devfsd_buf_cache, entry);
+    }
+    return 0;
+}   /*  End Function devfsd_close  */
+
+#ifdef CONFIG_DEVFS_DEBUG
+static ssize_t stat_read (struct file *file, char *buf, size_t len,
+			  loff_t *ppos)
+{
+    ssize_t num;
+    loff_t n = *ppos;
+    char txt[80];
+
+    num = sprintf (txt, "Number of entries: %u  number of bytes: %u\n",
+		   stat_num_entries, stat_num_bytes) + 1;
+    /*  Can't seek (pread) on this device  */
+    if (ppos != &file->f_pos) return -ESPIPE;
+    if (n != (unsigned)n || n >= num) return 0;
+    if (len > num - n) len = num - n;
+    if ( copy_to_user (buf, txt + n, len) ) return -EFAULT;
+    *ppos = n + len;
+    return len;
+}   /*  End Function stat_read  */
+#endif
+
+
+static int __init init_devfs_fs (void)
+{
+    int err;
+
+    printk (KERN_INFO "%s: v%s Richard Gooch (rgooch@atnf.csiro.au)\n",
+	    DEVFS_NAME, DEVFS_VERSION);
+    devfsd_buf_cache = kmem_cache_create ("devfsd_event",
+					  sizeof (struct devfsd_buf_entry),
+					  0, 0, NULL, NULL);
+    if (!devfsd_buf_cache) OOPS ("(): unable to allocate event slab\n");
+#ifdef CONFIG_DEVFS_DEBUG
+    devfs_debug = devfs_debug_init;
+    printk (KERN_INFO "%s: devfs_debug: 0x%0x\n", DEVFS_NAME, devfs_debug);
+#endif
+    printk (KERN_INFO "%s: boot_options: 0x%0x\n", DEVFS_NAME, boot_options);
+    err = register_filesystem (&devfs_fs_type);
+    if (!err)
+    {
+	struct vfsmount *devfs_mnt = kern_mount (&devfs_fs_type);
+	err = PTR_ERR (devfs_mnt);
+	if ( !IS_ERR (devfs_mnt) ) err = 0;
+    }
+    return err;
+}   /*  End Function init_devfs_fs  */
+
+void __init mount_devfs_fs (void)
+{
+    int err;
+
+    if ( !(boot_options & OPTION_MOUNT) ) return;
+    err = do_mount ("none", "/dev", "devfs", 0, NULL);
+    if (err == 0) printk (KERN_INFO "Mounted devfs on /dev\n");
+    else PRINTK ("(): unable to mount devfs, err: %d\n", err);
+}   /*  End Function mount_devfs_fs  */
+
+module_init(init_devfs_fs)
diff --git a/fs/devfs/util.c b/fs/devfs/util.c
new file mode 100644
index 00000000000000..9431e7d903b2b2
--- /dev/null
+++ b/fs/devfs/util.c
@@ -0,0 +1,426 @@
+/*  devfs (Device FileSystem) utilities.
+
+    Copyright (C) 1999-2002  Richard Gooch
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public
+    License along with this library; if not, write to the Free
+    Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+    Richard Gooch may be reached by email at  rgooch@atnf.csiro.au
+    The postal address is:
+      Richard Gooch, c/o ATNF, P. O. Box 76, Epping, N.S.W., 2121, Australia.
+
+    ChangeLog
+
+    19991031   Richard Gooch <rgooch@atnf.csiro.au>
+               Created.
+    19991103   Richard Gooch <rgooch@atnf.csiro.au>
+               Created <_devfs_convert_name> and supported SCSI and IDE CD-ROMs
+    20000203   Richard Gooch <rgooch@atnf.csiro.au>
+               Changed operations pointer type to void *.
+    20000621   Richard Gooch <rgooch@atnf.csiro.au>
+               Changed interface to <devfs_register_series>.
+    20000622   Richard Gooch <rgooch@atnf.csiro.au>
+               Took account of interface change to <devfs_mk_symlink>.
+               Took account of interface change to <devfs_mk_dir>.
+    20010519   Richard Gooch <rgooch@atnf.csiro.au>
+               Documentation cleanup.
+    20010709   Richard Gooch <rgooch@atnf.csiro.au>
+               Created <devfs_*alloc_major> and <devfs_*alloc_devnum>.
+    20010710   Richard Gooch <rgooch@atnf.csiro.au>
+               Created <devfs_*alloc_unique_number>.
+    20010730   Richard Gooch <rgooch@atnf.csiro.au>
+               Documentation typo fix.
+    20010806   Richard Gooch <rgooch@atnf.csiro.au>
+               Made <block_semaphore> and <char_semaphore> private.
+    20010813   Richard Gooch <rgooch@atnf.csiro.au>
+               Fixed bug in <devfs_alloc_unique_number>: limited to 128 numbers
+    20010818   Richard Gooch <rgooch@atnf.csiro.au>
+               Updated major masks up to Linus' "no new majors" proclamation.
+	       Block: were 126 now 122 free, char: were 26 now 19 free.
+    20020324   Richard Gooch <rgooch@atnf.csiro.au>
+               Fixed bug in <devfs_alloc_unique_number>: was clearing beyond
+	       bitfield.
+    20020326   Richard Gooch <rgooch@atnf.csiro.au>
+               Fixed bitfield data type for <devfs_*alloc_devnum>.
+               Made major bitfield type and initialiser 64 bit safe.
+    20020413   Richard Gooch <rgooch@atnf.csiro.au>
+               Fixed shift warning on 64 bit machines.
+    20020428   Richard Gooch <rgooch@atnf.csiro.au>
+               Copied and used macro for error messages from fs/devfs/base.c 
+*/
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/devfs_fs_kernel.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+
+#include <asm/bitops.h>
+
+#define PRINTK(format, args...) \
+   {printk (KERN_ERR "%s" format, __FUNCTION__ , ## args);}
+
+
+/*  Private functions follow  */
+
+/**
+ *	devfs_register_tape - Register a tape device in the "/dev/tapes" hierarchy.
+ *	@de: Any tape device entry in the device directory.
+ */
+
+void devfs_register_tape (devfs_handle_t de)
+{
+    int pos;
+    devfs_handle_t parent, slave;
+    char name[16], dest[64];
+    static unsigned int tape_counter;
+    static devfs_handle_t tape_dir;
+
+    if (tape_dir == NULL) tape_dir = devfs_mk_dir (NULL, "tapes", NULL);
+    parent = devfs_get_parent (de);
+    pos = devfs_generate_path (parent, dest + 3, sizeof dest - 3);
+    if (pos < 0) return;
+    strncpy (dest + pos, "../", 3);
+    sprintf (name, "tape%u", tape_counter++);
+    devfs_mk_symlink (tape_dir, name, DEVFS_FL_DEFAULT, dest + pos,
+		      &slave, NULL);
+    devfs_auto_unregister (de, slave);
+}   /*  End Function devfs_register_tape  */
+EXPORT_SYMBOL(devfs_register_tape);
+
+
+/**
+ *	devfs_register_series - Register a sequence of device entries.
+ *	@dir: The handle to the parent devfs directory entry. If this is %NULL
+ *		the new names are relative to the root of the devfs.
+ *	@format: The printf-style format string. A single "\%u" is allowed.
+ *	@num_entries: The number of entries to register.
+ *	@flags: A set of bitwise-ORed flags (DEVFS_FL_*).
+ *	@major: The major number. Not needed for regular files.
+ *	@minor_start: The starting minor number. Not needed for regular files.
+ *	@mode: The default file mode.
+ *	@ops: The &file_operations or &block_device_operations structure.
+ *		This must not be externally deallocated.
+ *	@info: An arbitrary pointer which will be written to the private_data
+ *		field of the &file structure passed to the device driver. You
+ *		can set this to whatever you like, and change it once the file
+ *		is opened (the next file opened will not see this change).
+ */
+
+void devfs_register_series (devfs_handle_t dir, const char *format,
+			    unsigned int num_entries, unsigned int flags,
+			    unsigned int major, unsigned int minor_start,
+			    umode_t mode, void *ops, void *info)
+{
+    unsigned int count;
+    char devname[128];
+
+    for (count = 0; count < num_entries; ++count)
+    {
+	sprintf (devname, format, count);
+	devfs_register (dir, devname, flags, major, minor_start + count,
+			mode, ops, info);
+    }
+}   /*  End Function devfs_register_series  */
+EXPORT_SYMBOL(devfs_register_series);
+
+
+struct major_list
+{
+    spinlock_t lock;
+    unsigned long bits[256 / BITS_PER_LONG];
+};
+#if BITS_PER_LONG == 32
+#  define INITIALISER64(low,high) (low), (high)
+#else
+#  define INITIALISER64(low,high) ( (unsigned long) (high) << 32 | (low) )
+#endif
+
+/*  Block majors already assigned:
+    0-3, 7-9, 11-63, 65-99, 101-113, 120-127, 199, 201, 240-255
+    Total free: 122
+*/
+static struct major_list block_major_list =
+{SPIN_LOCK_UNLOCKED,
+    {INITIALISER64 (0xfffffb8f, 0xffffffff),  /*  Majors 0-31,    32-63    */
+     INITIALISER64 (0xfffffffe, 0xff03ffef),  /*  Majors 64-95,   96-127   */
+     INITIALISER64 (0x00000000, 0x00000000),  /*  Majors 128-159, 160-191  */
+     INITIALISER64 (0x00000280, 0xffff0000),  /*  Majors 192-223, 224-255  */
+    }
+};
+
+/*  Char majors already assigned:
+    0-7, 9-151, 154-158, 160-211, 216-221, 224-230, 240-255
+    Total free: 19
+*/
+static struct major_list char_major_list =
+{SPIN_LOCK_UNLOCKED,
+    {INITIALISER64 (0xfffffeff, 0xffffffff),  /*  Majors 0-31,    32-63    */
+     INITIALISER64 (0xffffffff, 0xffffffff),  /*  Majors 64-95,   96-127   */
+     INITIALISER64 (0x7cffffff, 0xffffffff),  /*  Majors 128-159, 160-191  */
+     INITIALISER64 (0x3f0fffff, 0xffff007f),  /*  Majors 192-223, 224-255  */
+    }
+};
+
+
+/**
+ *	devfs_alloc_major - Allocate a major number.
+ *	@type: The type of the major (DEVFS_SPECIAL_CHR or DEVFS_SPECIAL_BLK)
+
+ *	Returns the allocated major, else -1 if none are available.
+ *	This routine is thread safe and does not block.
+ */
+
+int devfs_alloc_major (char type)
+{
+    int major;
+    struct major_list *list;
+
+    list = (type == DEVFS_SPECIAL_CHR) ? &char_major_list : &block_major_list;
+    spin_lock (&list->lock);
+    major = find_first_zero_bit (list->bits, 256);
+    if (major < 256) __set_bit (major, list->bits);
+    else major = -1;
+    spin_unlock (&list->lock);
+    return major;
+}   /*  End Function devfs_alloc_major  */
+EXPORT_SYMBOL(devfs_alloc_major);
+
+
+/**
+ *	devfs_dealloc_major - Deallocate a major number.
+ *	@type: The type of the major (DEVFS_SPECIAL_CHR or DEVFS_SPECIAL_BLK)
+ *	@major: The major number.
+ *	This routine is thread safe and does not block.
+ */
+
+void devfs_dealloc_major (char type, int major)
+{
+    int was_set;
+    struct major_list *list;
+
+    if (major < 0) return;
+    list = (type == DEVFS_SPECIAL_CHR) ? &char_major_list : &block_major_list;
+    spin_lock (&list->lock);
+    was_set = __test_and_clear_bit (major, list->bits);
+    spin_unlock (&list->lock);
+    if (!was_set) PRINTK ("(): major %d was already free\n", major);
+}   /*  End Function devfs_dealloc_major  */
+EXPORT_SYMBOL(devfs_dealloc_major);
+
+
+struct minor_list
+{
+    int major;
+    unsigned long bits[256 / BITS_PER_LONG];
+    struct minor_list *next;
+};
+
+struct device_list
+{
+    struct minor_list *first, *last;
+    int none_free;
+};
+
+static DECLARE_MUTEX (block_semaphore);
+static struct device_list block_list;
+
+static DECLARE_MUTEX (char_semaphore);
+static struct device_list char_list;
+
+
+/**
+ *	devfs_alloc_devnum - Allocate a device number.
+ *	@type: The type (DEVFS_SPECIAL_CHR or DEVFS_SPECIAL_BLK).
+ *
+ *	Returns the allocated device number, else NODEV if none are available.
+ *	This routine is thread safe and may block.
+ */
+
+kdev_t devfs_alloc_devnum (char type)
+{
+    int minor;
+    struct semaphore *semaphore;
+    struct device_list *list;
+    struct minor_list *entry;
+
+    if (type == DEVFS_SPECIAL_CHR)
+    {
+	semaphore = &char_semaphore;
+	list = &char_list;
+    }
+    else
+    {
+	semaphore = &block_semaphore;
+	list = &block_list;
+    }
+    if (list->none_free) return NODEV;  /*  Fast test  */
+    down (semaphore);
+    if (list->none_free)
+    {
+	up (semaphore);
+	return NODEV;
+    }
+    for (entry = list->first; entry != NULL; entry = entry->next)
+    {
+	minor = find_first_zero_bit (entry->bits, 256);
+	if (minor >= 256) continue;
+	__set_bit (minor, entry->bits);
+	up (semaphore);
+	return mk_kdev (entry->major, minor);
+    }
+    /*  Need to allocate a new major  */
+    if ( ( entry = kmalloc (sizeof *entry, GFP_KERNEL) ) == NULL )
+    {
+	list->none_free = 1;
+	up (semaphore);
+	return NODEV;
+    }
+    memset (entry, 0, sizeof *entry);
+    if ( ( entry->major = devfs_alloc_major (type) ) < 0 )
+    {
+	list->none_free = 1;
+	up (semaphore);
+	kfree (entry);
+	return NODEV;
+    }
+    __set_bit (0, entry->bits);
+    if (list->first == NULL) list->first = entry;
+    else list->last->next = entry;
+    list->last = entry;
+    up (semaphore);
+    return mk_kdev (entry->major, 0);
+}   /*  End Function devfs_alloc_devnum  */
+EXPORT_SYMBOL(devfs_alloc_devnum);
+
+
+/**
+ *	devfs_dealloc_devnum - Dellocate a device number.
+ *	@type: The type (DEVFS_SPECIAL_CHR or DEVFS_SPECIAL_BLK).
+ *	@devnum: The device number.
+ *
+ *	This routine is thread safe and does not block.
+ */
+
+void devfs_dealloc_devnum (char type, kdev_t devnum)
+{
+    int major, minor;
+    struct semaphore *semaphore;
+    struct device_list *list;
+    struct minor_list *entry;
+
+    if ( kdev_none (devnum) ) return;
+    if (type == DEVFS_SPECIAL_CHR)
+    {
+	semaphore = &char_semaphore;
+	list = &char_list;
+    }
+    else
+    {
+	semaphore = &block_semaphore;
+	list = &block_list;
+    }
+    major = major (devnum);
+    minor = minor (devnum);
+    down (semaphore);
+    for (entry = list->first; entry != NULL; entry = entry->next)
+    {
+	int was_set;
+
+	if (entry->major != major) continue;
+	was_set = __test_and_clear_bit (minor, entry->bits);
+	if (was_set) list->none_free = 0;
+	up (semaphore);
+	if (!was_set)
+	    PRINTK ( "(): device %s was already free\n", kdevname (devnum) );
+	return;
+    }
+    up (semaphore);
+    PRINTK ( "(): major for %s not previously allocated\n",
+	     kdevname (devnum) );
+}   /*  End Function devfs_dealloc_devnum  */
+EXPORT_SYMBOL(devfs_dealloc_devnum);
+
+
+/**
+ *	devfs_alloc_unique_number - Allocate a unique (positive) number.
+ *	@space: The number space to allocate from.
+ *
+ *	Returns the allocated unique number, else a negative error code.
+ *	This routine is thread safe and may block.
+ */
+
+int devfs_alloc_unique_number (struct unique_numspace *space)
+{
+    int number;
+    unsigned int length;
+
+    /*  Get around stupid lack of semaphore initialiser  */
+    spin_lock (&space->init_lock);
+    if (!space->sem_initialised)
+    {
+	sema_init (&space->semaphore, 1);
+	space->sem_initialised = 1;
+    }
+    spin_unlock (&space->init_lock);
+    down (&space->semaphore);
+    if (space->num_free < 1)
+    {
+	void *bits;
+
+	if (space->length < 16) length = 16;
+	else length = space->length << 1;
+	if ( ( bits = vmalloc (length) ) == NULL )
+	{
+	    up (&space->semaphore);
+	    return -ENOMEM;
+	}
+	if (space->bits != NULL)
+	{
+	    memcpy (bits, space->bits, space->length);
+	    vfree (space->bits);
+	}
+	space->num_free = (length - space->length) << 3;
+	space->bits = bits;
+	memset (bits + space->length, 0, length - space->length);
+	space->length = length;
+    }
+    number = find_first_zero_bit (space->bits, space->length << 3);
+    --space->num_free;
+    __set_bit (number, space->bits);
+    up (&space->semaphore);
+    return number;
+}   /*  End Function devfs_alloc_unique_number  */
+EXPORT_SYMBOL(devfs_alloc_unique_number);
+
+
+/**
+ *	devfs_dealloc_unique_number - Deallocate a unique (positive) number.
+ *	@space: The number space to deallocate from.
+ *	@number: The number to deallocate.
+ *
+ *	This routine is thread safe and may block.
+ */
+
+void devfs_dealloc_unique_number (struct unique_numspace *space, int number)
+{
+    int was_set;
+
+    if (number < 0) return;
+    down (&space->semaphore);
+    was_set = __test_and_clear_bit (number, space->bits);
+    if (was_set) ++space->num_free;
+    up (&space->semaphore);
+    if (!was_set) PRINTK ("(): number %d was already free\n", number);
+}   /*  End Function devfs_dealloc_unique_number  */
+EXPORT_SYMBOL(devfs_dealloc_unique_number);
diff --git a/fs/devices.c b/fs/devices.c
new file mode 100644
index 00000000000000..3b4448e8d0e816
--- /dev/null
+++ b/fs/devices.c
@@ -0,0 +1,216 @@
+/*
+ *  linux/fs/devices.c
+ *
+ * (C) 1993 Matthias Urlichs -- collected common code and tables.
+ * 
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  Added kerneld support: Jacques Gelinas and Bjorn Ekwall
+ *  (changed to kmod)
+ */
+
+#include <linux/config.h>
+#include <linux/fs.h>
+#include <linux/major.h>
+#include <linux/string.h>
+#include <linux/sched.h>
+#include <linux/stat.h>
+#include <linux/fcntl.h>
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/smp_lock.h>
+#ifdef CONFIG_KMOD
+#include <linux/kmod.h>
+
+#include <linux/tty.h>
+
+/* serial module kmod load support */
+struct tty_driver *get_tty_driver(kdev_t device);
+#define isa_tty_dev(ma)	(ma == TTY_MAJOR || ma == TTYAUX_MAJOR)
+#define need_serial(ma,mi) (get_tty_driver(MKDEV(ma,mi)) == NULL)
+#endif
+
+struct device_struct {
+	const char * name;
+	struct file_operations * fops;
+};
+
+static rwlock_t chrdevs_lock = RW_LOCK_UNLOCKED;
+static struct device_struct chrdevs[MAX_CHRDEV];
+
+extern int get_blkdev_list(char *);
+
+int get_device_list(char * page)
+{
+	int i;
+	int len;
+
+	len = sprintf(page, "Character devices:\n");
+	read_lock(&chrdevs_lock);
+	for (i = 0; i < MAX_CHRDEV ; i++) {
+		if (chrdevs[i].fops) {
+			len += sprintf(page+len, "%3d %s\n", i, chrdevs[i].name);
+		}
+	}
+	read_unlock(&chrdevs_lock);
+	len += get_blkdev_list(page+len);
+	return len;
+}
+
+/*
+	Return the function table of a device.
+	Load the driver if needed.
+	Increment the reference count of module in question.
+*/
+static struct file_operations * get_chrfops(unsigned int major, unsigned int minor)
+{
+	struct file_operations *ret = NULL;
+
+	if (!major || major >= MAX_CHRDEV)
+		return NULL;
+
+	read_lock(&chrdevs_lock);
+	ret = fops_get(chrdevs[major].fops);
+	read_unlock(&chrdevs_lock);
+#ifdef CONFIG_KMOD
+	if (ret && isa_tty_dev(major)) {
+		lock_kernel();
+		if (need_serial(major,minor)) {
+			/* Force request_module anyway, but what for? */
+			fops_put(ret);
+			ret = NULL;
+		}
+		unlock_kernel();
+	}
+	if (!ret) {
+		char name[20];
+		sprintf(name, "char-major-%d", major);
+		request_module(name);
+
+		read_lock(&chrdevs_lock);
+		ret = fops_get(chrdevs[major].fops);
+		read_unlock(&chrdevs_lock);
+	}
+#endif
+	return ret;
+}
+
+int register_chrdev(unsigned int major, const char * name, struct file_operations *fops)
+{
+	if (major == 0) {
+		write_lock(&chrdevs_lock);
+		for (major = MAX_CHRDEV-1; major > 0; major--) {
+			if (chrdevs[major].fops == NULL) {
+				chrdevs[major].name = name;
+				chrdevs[major].fops = fops;
+				write_unlock(&chrdevs_lock);
+				return major;
+			}
+		}
+		write_unlock(&chrdevs_lock);
+		return -EBUSY;
+	}
+	if (major >= MAX_CHRDEV)
+		return -EINVAL;
+	write_lock(&chrdevs_lock);
+	if (chrdevs[major].fops && chrdevs[major].fops != fops) {
+		write_unlock(&chrdevs_lock);
+		return -EBUSY;
+	}
+	chrdevs[major].name = name;
+	chrdevs[major].fops = fops;
+	write_unlock(&chrdevs_lock);
+	return 0;
+}
+
+int unregister_chrdev(unsigned int major, const char * name)
+{
+	if (major >= MAX_CHRDEV)
+		return -EINVAL;
+	write_lock(&chrdevs_lock);
+	if (!chrdevs[major].fops || strcmp(chrdevs[major].name, name)) {
+		write_unlock(&chrdevs_lock);
+		return -EINVAL;
+	}
+	chrdevs[major].name = NULL;
+	chrdevs[major].fops = NULL;
+	write_unlock(&chrdevs_lock);
+	return 0;
+}
+
+/*
+ * Called every time a character special file is opened
+ */
+int chrdev_open(struct inode * inode, struct file * filp)
+{
+	int ret = -ENODEV;
+
+	filp->f_op = get_chrfops(MAJOR(inode->i_rdev), MINOR(inode->i_rdev));
+	if (filp->f_op) {
+		ret = 0;
+		if (filp->f_op->open != NULL) {
+			lock_kernel();
+			ret = filp->f_op->open(inode,filp);
+			unlock_kernel();
+		}
+	}
+	return ret;
+}
+
+/*
+ * Dummy default file-operations: the only thing this does
+ * is contain the open that then fills in the correct operations
+ * depending on the special file...
+ */
+static struct file_operations def_chr_fops = {
+	open:		chrdev_open,
+};
+
+/*
+ * Print device name (in decimal, hexadecimal or symbolic)
+ * Note: returns pointer to static data!
+ */
+const char * kdevname(kdev_t dev)
+{
+	static char buffer[32];
+	sprintf(buffer, "%02x:%02x", MAJOR(dev), MINOR(dev));
+	return buffer;
+}
+
+const char * cdevname(kdev_t dev)
+{
+	static char buffer[32];
+	const char * name = chrdevs[MAJOR(dev)].name;
+
+	if (!name)
+		name = "unknown-char";
+	sprintf(buffer, "%s(%d,%d)", name, MAJOR(dev), MINOR(dev));
+	return buffer;
+}
+  
+static int sock_no_open(struct inode *irrelevant, struct file *dontcare)
+{
+	return -ENXIO;
+}
+
+static struct file_operations bad_sock_fops = {
+	open:		sock_no_open
+};
+
+void init_special_inode(struct inode *inode, umode_t mode, int rdev)
+{
+	inode->i_mode = mode;
+	if (S_ISCHR(mode)) {
+		inode->i_fop = &def_chr_fops;
+		inode->i_rdev = to_kdev_t(rdev);
+		inode->i_cdev = cdget(rdev);
+	} else if (S_ISBLK(mode)) {
+		inode->i_fop = &def_blk_fops;
+		inode->i_rdev = to_kdev_t(rdev);
+	} else if (S_ISFIFO(mode))
+		inode->i_fop = &def_fifo_fops;
+	else if (S_ISSOCK(mode))
+		inode->i_fop = &bad_sock_fops;
+	else
+		printk(KERN_DEBUG "init_special_inode: bogus imode (%o)\n", mode);
+}
diff --git a/fs/devpts/Makefile b/fs/devpts/Makefile
new file mode 100644
index 00000000000000..8ab293007dc89d
--- /dev/null
+++ b/fs/devpts/Makefile
@@ -0,0 +1,11 @@
+#
+# Makefile for the Linux /dev/pts virtual filesystem.
+#
+
+O_TARGET := devpts.o
+
+obj-y    := root.o inode.o
+
+obj-m    := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/devpts/devpts_i.h b/fs/devpts/devpts_i.h
new file mode 100644
index 00000000000000..da387ea1a93218
--- /dev/null
+++ b/fs/devpts/devpts_i.h
@@ -0,0 +1,41 @@
+/* -*- linux-c -*- --------------------------------------------------------- *
+ *
+ * linux/fs/devpts/devpts_i.h
+ *
+ *  Copyright 1998 H. Peter Anvin -- All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * ------------------------------------------------------------------------- */
+
+#include <linux/fs.h>
+#include <linux/tty.h>
+#include <linux/types.h>
+
+#define BUILDING_DEVPTS 1
+#include <linux/devpts_fs.h>
+
+struct devpts_sb_info {
+	u32 magic;
+	int setuid;
+	int setgid;
+	uid_t   uid;
+	gid_t   gid;
+	umode_t mode;
+
+	unsigned int max_ptys;
+	struct inode **inodes;
+};
+
+#define DEVPTS_SUPER_MAGIC 0x1cd1
+#define DEVPTS_SBI_MAGIC   0x01da1d02
+
+extern inline struct devpts_sb_info *SBI(struct super_block *sb)
+{
+	return (struct devpts_sb_info *)(sb->u.generic_sbp);
+}
+
+extern struct inode_operations devpts_root_inode_operations;
+extern struct file_operations devpts_root_operations;
diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c
new file mode 100644
index 00000000000000..9ad01667a1799e
--- /dev/null
+++ b/fs/devpts/inode.c
@@ -0,0 +1,256 @@
+/* -*- linux-c -*- --------------------------------------------------------- *
+ *
+ * linux/fs/devpts/inode.c
+ *
+ *  Copyright 1998 H. Peter Anvin -- All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * ------------------------------------------------------------------------- */
+
+#include <linux/module.h>
+
+#include <linux/string.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/kdev_t.h>
+#include <linux/kernel.h>
+#include <linux/locks.h>
+#include <linux/major.h>
+#include <linux/slab.h>
+#include <linux/stat.h>
+#include <linux/tty.h>
+#include <asm/bitops.h>
+#include <asm/uaccess.h>
+
+#include "devpts_i.h"
+
+static struct vfsmount *devpts_mnt;
+
+static void devpts_put_super(struct super_block *sb)
+{
+	struct devpts_sb_info *sbi = SBI(sb);
+	struct inode *inode;
+	int i;
+
+	for ( i = 0 ; i < sbi->max_ptys ; i++ ) {
+		if ( (inode = sbi->inodes[i]) ) {
+			if ( atomic_read(&inode->i_count) != 1 )
+				printk("devpts_put_super: badness: entry %d count %d\n",
+				       i, atomic_read(&inode->i_count));
+			inode->i_nlink--;
+			iput(inode);
+		}
+	}
+	kfree(sbi->inodes);
+	kfree(sbi);
+}
+
+static int devpts_statfs(struct super_block *sb, struct statfs *buf);
+static int devpts_remount (struct super_block * sb, int * flags, char * data);
+
+static struct super_operations devpts_sops = {
+	put_super:	devpts_put_super,
+	statfs:		devpts_statfs,
+	remount_fs:	devpts_remount,
+};
+
+static int devpts_parse_options(char *options, struct devpts_sb_info *sbi)
+{
+	int setuid = 0;
+	int setgid = 0;
+	uid_t uid = 0;
+	gid_t gid = 0;
+	umode_t mode = 0600;
+	char *this_char, *value;
+
+	this_char = NULL;
+	if ( options )
+		this_char = strtok(options,",");
+	for ( ; this_char; this_char = strtok(NULL,",")) {
+		if ((value = strchr(this_char,'=')) != NULL)
+			*value++ = 0;
+		if (!strcmp(this_char,"uid")) {
+			if (!value || !*value)
+				return 1;
+			uid = simple_strtoul(value,&value,0);
+			if (*value)
+				return 1;
+			setuid = 1;
+		}
+		else if (!strcmp(this_char,"gid")) {
+			if (!value || !*value)
+				return 1;
+			gid = simple_strtoul(value,&value,0);
+			if (*value)
+				return 1;
+			setgid = 1;
+		}
+		else if (!strcmp(this_char,"mode")) {
+			if (!value || !*value)
+				return 1;
+			mode = simple_strtoul(value,&value,8);
+			if (*value)
+				return 1;
+		}
+		else
+			return 1;
+	}
+	sbi->setuid  = setuid;
+	sbi->setgid  = setgid;
+	sbi->uid     = uid;
+	sbi->gid     = gid;
+	sbi->mode    = mode & ~S_IFMT;
+
+	return 0;
+}
+
+static int devpts_remount(struct super_block * sb, int * flags, char * data)
+{
+	struct devpts_sb_info *sbi = sb->u.generic_sbp;
+	int res = devpts_parse_options(data,sbi);
+	if (res) {
+		printk("devpts: called with bogus options\n");
+		return -EINVAL;
+	}
+	return 0;
+}
+
+struct super_block *devpts_read_super(struct super_block *s, void *data,
+				      int silent)
+{
+	struct inode * inode;
+	struct devpts_sb_info *sbi;
+
+	sbi = (struct devpts_sb_info *) kmalloc(sizeof(struct devpts_sb_info), GFP_KERNEL);
+	if ( !sbi )
+		goto fail;
+
+	sbi->magic  = DEVPTS_SBI_MAGIC;
+	sbi->max_ptys = unix98_max_ptys;
+	sbi->inodes = kmalloc(sizeof(struct inode *) * sbi->max_ptys, GFP_KERNEL);
+	if ( !sbi->inodes )
+		goto fail_free;
+	memset(sbi->inodes, 0, sizeof(struct inode *) * sbi->max_ptys);
+
+	if ( devpts_parse_options(data,sbi) && !silent) {
+		printk("devpts: called with bogus options\n");
+		goto fail_inode;
+	}
+
+	inode = new_inode(s);
+	if (!inode)
+		goto fail_inode;
+	inode->i_ino = 1;
+	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+	inode->i_blocks = 0;
+	inode->i_blksize = 1024;
+	inode->i_uid = inode->i_gid = 0;
+	inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO | S_IWUSR;
+	inode->i_op = &devpts_root_inode_operations;
+	inode->i_fop = &devpts_root_operations;
+	inode->i_nlink = 2;
+
+	s->u.generic_sbp = (void *) sbi;
+	s->s_blocksize = 1024;
+	s->s_blocksize_bits = 10;
+	s->s_magic = DEVPTS_SUPER_MAGIC;
+	s->s_op = &devpts_sops;
+	s->s_root = d_alloc_root(inode);
+	if (s->s_root)
+		return s;
+	
+	printk("devpts: get root dentry failed\n");
+	iput(inode);
+fail_inode:
+	kfree(sbi->inodes);
+fail_free:
+	kfree(sbi);
+fail:
+	return NULL;
+}
+
+static int devpts_statfs(struct super_block *sb, struct statfs *buf)
+{
+	buf->f_type = DEVPTS_SUPER_MAGIC;
+	buf->f_bsize = 1024;
+	buf->f_namelen = NAME_MAX;
+	return 0;
+}
+
+static DECLARE_FSTYPE(devpts_fs_type, "devpts", devpts_read_super, FS_SINGLE);
+
+void devpts_pty_new(int number, kdev_t device)
+{
+	struct super_block *sb = devpts_mnt->mnt_sb;
+	struct devpts_sb_info *sbi = SBI(sb);
+	struct inode *inode;
+		
+	if ( sbi->inodes[number] )
+		return; /* Already registered, this does happen */
+		
+	inode = new_inode(sb);
+	if (!inode)
+		return;
+	inode->i_ino = number+2;
+	inode->i_blocks = 0;
+	inode->i_blksize = 1024;
+	inode->i_uid = sbi->setuid ? sbi->uid : current->fsuid;
+	inode->i_gid = sbi->setgid ? sbi->gid : current->fsgid;
+	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+	init_special_inode(inode, S_IFCHR|sbi->mode, kdev_t_to_nr(device));
+
+	if ( sbi->inodes[number] ) {
+		iput(inode);
+		return;
+	}
+	sbi->inodes[number] = inode;
+}
+
+void devpts_pty_kill(int number)
+{
+	struct super_block *sb = devpts_mnt->mnt_sb;
+	struct devpts_sb_info *sbi = SBI(sb);
+	struct inode *inode = sbi->inodes[number];
+
+	if ( inode ) {
+		sbi->inodes[number] = NULL;
+		inode->i_nlink--;
+		iput(inode);
+	}
+}
+
+static int __init init_devpts_fs(void)
+{
+	int err = register_filesystem(&devpts_fs_type);
+	if (!err) {
+		devpts_mnt = kern_mount(&devpts_fs_type);
+		err = PTR_ERR(devpts_mnt);
+		if (!IS_ERR(devpts_mnt))
+			err = 0;
+#ifdef MODULE
+		if ( !err ) {
+			devpts_upcall_new  = devpts_pty_new;
+			devpts_upcall_kill = devpts_pty_kill;
+		}
+#endif
+	}
+	return err;
+}
+
+static void __exit exit_devpts_fs(void)
+{
+#ifdef MODULE
+	devpts_upcall_new  = NULL;
+	devpts_upcall_kill = NULL;
+#endif
+	unregister_filesystem(&devpts_fs_type);
+	kern_umount(devpts_mnt);
+}
+
+module_init(init_devpts_fs)
+module_exit(exit_devpts_fs)
+MODULE_LICENSE("GPL");
+
diff --git a/fs/devpts/root.c b/fs/devpts/root.c
new file mode 100644
index 00000000000000..e93c3354c5b7f2
--- /dev/null
+++ b/fs/devpts/root.c
@@ -0,0 +1,135 @@
+/* -*- linux-c -*- --------------------------------------------------------- *
+ *
+ * linux/fs/devpts/root.c
+ *
+ *  Copyright 1998 H. Peter Anvin -- All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * ------------------------------------------------------------------------- */
+
+#include <linux/errno.h>
+#include <linux/stat.h>
+#include <linux/param.h>
+#include <linux/string.h>
+#include "devpts_i.h"
+
+static int devpts_root_readdir(struct file *,void *,filldir_t);
+static struct dentry *devpts_root_lookup(struct inode *,struct dentry *);
+static int devpts_revalidate(struct dentry *, int);
+
+struct file_operations devpts_root_operations = {
+	read:		generic_read_dir,
+	readdir:	devpts_root_readdir,
+};
+
+struct inode_operations devpts_root_inode_operations = {
+	lookup:		devpts_root_lookup,
+};
+
+static struct dentry_operations devpts_dentry_operations = {
+	d_revalidate:	devpts_revalidate,
+};
+
+/*
+ * The normal naming convention is simply /dev/pts/<number>; this conforms
+ * to the System V naming convention
+ */
+
+#define genptsname(buf,num) sprintf(buf, "%d", num)
+
+static int devpts_root_readdir(struct file *filp, void *dirent, filldir_t filldir)
+{
+	struct inode * inode = filp->f_dentry->d_inode;
+	struct devpts_sb_info * sbi = SBI(filp->f_dentry->d_inode->i_sb);
+	off_t nr;
+	char numbuf[16];
+
+	nr = filp->f_pos;
+
+	switch(nr)
+	{
+	case 0:
+		if (filldir(dirent, ".", 1, nr, inode->i_ino, DT_DIR) < 0)
+			return 0;
+		filp->f_pos = ++nr;
+		/* fall through */
+	case 1:
+		if (filldir(dirent, "..", 2, nr, inode->i_ino, DT_DIR) < 0)
+			return 0;
+		filp->f_pos = ++nr;
+		/* fall through */
+	default:
+		while ( nr - 2 < sbi->max_ptys ) {
+			int ptynr = nr - 2;
+			if ( sbi->inodes[ptynr] ) {
+				genptsname(numbuf, ptynr);
+				if ( filldir(dirent, numbuf, strlen(numbuf), nr, nr, DT_CHR) < 0 )
+					return 0;
+			}
+			filp->f_pos = ++nr;
+		}
+		break;
+	}
+
+	return 0;
+}
+
+/*
+ * Revalidate is called on every cache lookup.  We use it to check that
+ * the pty really does still exist.  Never revalidate negative dentries;
+ * for simplicity (fix later?)
+ */
+static int devpts_revalidate(struct dentry * dentry, int flags)
+{
+	struct devpts_sb_info *sbi;
+
+	if ( !dentry->d_inode )
+		return 0;
+
+	sbi = SBI(dentry->d_inode->i_sb);
+
+	return ( sbi->inodes[dentry->d_inode->i_ino - 2] == dentry->d_inode );
+}
+
+static struct dentry *devpts_root_lookup(struct inode * dir, struct dentry * dentry)
+{
+	struct devpts_sb_info *sbi = SBI(dir->i_sb);
+	unsigned int entry;
+	int i;
+	const char *p;
+
+	dentry->d_op    = &devpts_dentry_operations;
+
+	if ( dentry->d_name.len == 1 && dentry->d_name.name[0] == '0' ) {
+		entry = 0;
+	} else if ( dentry->d_name.len < 1 ) {
+		return NULL;
+	} else {
+		p = dentry->d_name.name;
+		if ( *p < '1' || *p > '9' )
+			return NULL;
+		entry = *p++ - '0';
+
+		for ( i = dentry->d_name.len-1 ; i ; i-- ) {
+			unsigned int nentry = *p++ - '0';
+			if ( nentry > 9 )
+				return NULL;
+			if ( entry >= ~0U/10 )
+				return NULL;
+			entry = nentry + entry * 10;
+		}
+	}
+
+	if ( entry >= sbi->max_ptys )
+		return NULL;
+
+	if ( sbi->inodes[entry] )
+		atomic_inc(&sbi->inodes[entry]->i_count);
+	
+	d_add(dentry, sbi->inodes[entry]);
+
+	return NULL;
+}
diff --git a/fs/dnotify.c b/fs/dnotify.c
new file mode 100644
index 00000000000000..7ccdb3187d1c4b
--- /dev/null
+++ b/fs/dnotify.c
@@ -0,0 +1,150 @@
+/*
+ * Directory notifications for Linux.
+ *
+ * Copyright (C) 2000,2001,2002 Stephen Rothwell
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+#include <linux/fs.h>
+#include <linux/sched.h>
+#include <linux/dnotify.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/slab.h>
+
+extern void send_sigio(struct fown_struct *fown, int fd, int band);
+
+int dir_notify_enable = 1;
+
+static rwlock_t dn_lock = RW_LOCK_UNLOCKED;
+static kmem_cache_t *dn_cache;
+
+static void redo_inode_mask(struct inode *inode)
+{
+	unsigned long new_mask;
+	struct dnotify_struct *dn;
+
+	new_mask = 0;
+	for (dn = inode->i_dnotify; dn != NULL; dn = dn->dn_next)
+		new_mask |= dn->dn_mask & ~DN_MULTISHOT;
+	inode->i_dnotify_mask = new_mask;
+}
+
+void dnotify_flush(struct file *filp, fl_owner_t id)
+{
+	struct dnotify_struct *dn;
+	struct dnotify_struct **prev;
+	struct inode *inode;
+
+	inode = filp->f_dentry->d_inode;
+	if (!S_ISDIR(inode->i_mode))
+		return;
+	write_lock(&dn_lock);
+	prev = &inode->i_dnotify;
+	while ((dn = *prev) != NULL) {
+		if ((dn->dn_owner == id) && (dn->dn_filp == filp)) {
+			*prev = dn->dn_next;
+			redo_inode_mask(inode);
+			kmem_cache_free(dn_cache, dn);
+			break;
+		}
+		prev = &dn->dn_next;
+	}
+	write_unlock(&dn_lock);
+}
+
+int fcntl_dirnotify(int fd, struct file *filp, unsigned long arg)
+{
+	struct dnotify_struct *dn;
+	struct dnotify_struct *odn;
+	struct dnotify_struct **prev;
+	struct inode *inode;
+	fl_owner_t id = current->files;
+
+	if ((arg & ~DN_MULTISHOT) == 0) {
+		dnotify_flush(filp, id);
+		return 0;
+	}
+	if (!dir_notify_enable)
+		return -EINVAL;
+	inode = filp->f_dentry->d_inode;
+	if (!S_ISDIR(inode->i_mode))
+		return -ENOTDIR;
+	dn = kmem_cache_alloc(dn_cache, SLAB_KERNEL);
+	if (dn == NULL)
+		return -ENOMEM;
+	write_lock(&dn_lock);
+	prev = &inode->i_dnotify;
+	while ((odn = *prev) != NULL) {
+		if ((odn->dn_owner == id) && (odn->dn_filp == filp)) {
+			odn->dn_fd = fd;
+			odn->dn_mask |= arg;
+			inode->i_dnotify_mask |= arg & ~DN_MULTISHOT;
+			kmem_cache_free(dn_cache, dn);
+			goto out;
+		}
+		prev = &odn->dn_next;
+	}
+	filp->f_owner.pid = current->pid;
+	filp->f_owner.uid = current->uid;
+	filp->f_owner.euid = current->euid;
+	dn->dn_mask = arg;
+	dn->dn_fd = fd;
+	dn->dn_filp = filp;
+	dn->dn_owner = id;
+	inode->i_dnotify_mask |= arg & ~DN_MULTISHOT;
+	dn->dn_next = inode->i_dnotify;
+	inode->i_dnotify = dn;
+out:
+	write_unlock(&dn_lock);
+	return 0;
+}
+
+void __inode_dir_notify(struct inode *inode, unsigned long event)
+{
+	struct dnotify_struct *	dn;
+	struct dnotify_struct **prev;
+	struct fown_struct *	fown;
+	int			changed = 0;
+
+	write_lock(&dn_lock);
+	prev = &inode->i_dnotify;
+	while ((dn = *prev) != NULL) {
+		if ((dn->dn_mask & event) == 0) {
+			prev = &dn->dn_next;
+			continue;
+		}
+		fown = &dn->dn_filp->f_owner;
+		if (fown->pid)
+		        send_sigio(fown, dn->dn_fd, POLL_MSG);
+		if (dn->dn_mask & DN_MULTISHOT)
+			prev = &dn->dn_next;
+		else {
+			*prev = dn->dn_next;
+			changed = 1;
+			kmem_cache_free(dn_cache, dn);
+		}
+	}
+	if (changed)
+		redo_inode_mask(inode);
+	write_unlock(&dn_lock);
+}
+
+static int __init dnotify_init(void)
+{
+	dn_cache = kmem_cache_create("dnotify_cache",
+		sizeof(struct dnotify_struct), 0, 0, NULL, NULL);
+	if (!dn_cache)
+		panic("cannot create dnotify slab cache");
+	return 0;
+}
+
+module_init(dnotify_init)
diff --git a/fs/dquot.c b/fs/dquot.c
new file mode 100644
index 00000000000000..ddaeccb0ce3f90
--- /dev/null
+++ b/fs/dquot.c
@@ -0,0 +1,1536 @@
+/*
+ * Implementation of the diskquota system for the LINUX operating
+ * system. QUOTA is implemented using the BSD system call interface as
+ * the means of communication with the user level. Currently only the
+ * ext2 filesystem has support for disk quotas. Other filesystems may
+ * be added in the future. This file contains the generic routines
+ * called by the different filesystems on allocation of an inode or
+ * block. These routines take care of the administration needed to
+ * have a consistent diskquota tracking system. The ideas of both
+ * user and group quotas are based on the Melbourne quota system as
+ * used on BSD derived systems. The internal implementation is 
+ * based on one of the several variants of the LINUX inode-subsystem
+ * with added complexity of the diskquota system.
+ * 
+ * Version: $Id: dquot.c,v 6.3 1996/11/17 18:35:34 mvw Exp mvw $
+ * 
+ * Author:	Marco van Wieringen <mvw@planets.elm.net>
+ *
+ * Fixes:   Dmitry Gorodchanin <pgmdsg@ibi.com>, 11 Feb 96
+ *
+ *		Revised list management to avoid races
+ *		-- Bill Hawes, <whawes@star.net>, 9/98
+ *
+ *		Fixed races in dquot_transfer(), dqget() and dquot_alloc_...().
+ *		As the consequence the locking was moved from dquot_decr_...(),
+ *		dquot_incr_...() to calling functions.
+ *		invalidate_dquots() now writes modified dquots.
+ *		Serialized quota_off() and quota_on() for mount point.
+ *		Fixed a few bugs in grow_dquots().
+ *		Fixed deadlock in write_dquot() - we no longer account quotas on
+ *		quota files
+ *		remove_dquot_ref() moved to inode.c - it now traverses through inodes
+ *		add_dquot_ref() restarts after blocking
+ *		Added check for bogus uid and fixed check for group in quotactl.
+ *		Jan Kara, <jack@suse.cz>, sponsored by SuSE CR, 10-11/99
+ *
+ *		Used struct list_head instead of own list struct
+ *		Invalidation of referenced dquots is no longer possible
+ *		Improved free_dquots list management
+ *		Quota and i_blocks are now updated in one place to avoid races
+ *		Warnings are now delayed so we won't block in critical section
+ *		Write updated not to require dquot lock
+ *		Jan Kara, <jack@suse.cz>, 9/2000
+ *
+ *		Added dynamic quota structure allocation
+ *		Jan Kara <jack@suse.cz> 12/2000
+ *
+ *		Rewritten quota interface. Implemented new quota format and
+ *		formats registering.
+ *		Jan Kara, <jack@suse.cz>, 2001,2002
+ *
+ * (C) Copyright 1994 - 1997 Marco van Wieringen 
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/fcntl.h>
+#include <linux/stat.h>
+#include <linux/tty.h>
+#include <linux/file.h>
+#include <linux/slab.h>
+#include <linux/sysctl.h>
+#include <linux/smp_lock.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/proc_fs.h>
+
+#include <asm/uaccess.h>
+
+static char *quotatypes[] = INITQFNAMES;
+static struct quota_format_type *quota_formats;	/* List of registered formats */
+
+int register_quota_format(struct quota_format_type *fmt)
+{
+	lock_kernel();
+	fmt->qf_next = quota_formats;
+	quota_formats = fmt;
+	unlock_kernel();
+	return 0;
+}
+
+void unregister_quota_format(struct quota_format_type *fmt)
+{
+	struct quota_format_type **actqf;
+
+	lock_kernel();
+	for (actqf = &quota_formats; *actqf && *actqf != fmt; actqf = &(*actqf)->qf_next);
+	if (*actqf)
+		*actqf = (*actqf)->qf_next;
+	unlock_kernel();
+}
+
+static struct quota_format_type *find_quota_format(int id)
+{
+	struct quota_format_type *actqf;
+
+	lock_kernel();
+	for (actqf = quota_formats; actqf && actqf->qf_fmt_id != id; actqf = actqf->qf_next);
+	if (actqf && !try_inc_mod_count(actqf->qf_owner))
+		actqf = NULL;
+	unlock_kernel();
+	return actqf;
+}
+
+static void put_quota_format(struct quota_format_type *fmt)
+{
+	if (fmt->qf_owner)
+		__MOD_DEC_USE_COUNT(fmt->qf_owner);
+}
+
+/*
+ * Dquot List Management:
+ * The quota code uses three lists for dquot management: the inuse_list,
+ * free_dquots, and dquot_hash[] array. A single dquot structure may be
+ * on all three lists, depending on its current state.
+ *
+ * All dquots are placed to the end of inuse_list when first created, and this
+ * list is used for the sync and invalidate operations, which must look
+ * at every dquot.
+ *
+ * Unused dquots (dq_count == 0) are added to the free_dquots list when freed,
+ * and this list is searched whenever we need an available dquot.  Dquots are
+ * removed from the list as soon as they are used again, and
+ * dqstats.free_dquots gives the number of dquots on the list. When
+ * dquot is invalidated it's completely released from memory.
+ *
+ * Dquots with a specific identity (device, type and id) are placed on
+ * one of the dquot_hash[] hash chains. The provides an efficient search
+ * mechanism to locate a specific dquot.
+ */
+
+/*
+ * Note that any operation which operates on dquot data (ie. dq_dqb) mustn't
+ * block while it's updating/reading it. Otherwise races would occur.
+ *
+ * Locked dquots might not be referenced in inodes - operations like
+ * add_dquot_space() does dqduplicate() and would complain. Currently
+ * dquot it locked only once in its existence - when it's being read
+ * to memory on first dqget() and at that time it can't be referenced
+ * from inode. Write operations on dquots don't hold dquot lock as they
+ * copy data to internal buffers before writing anyway and copying as well
+ * as any data update should be atomic. Also nobody can change used
+ * entries in dquot structure as this is done only when quota is destroyed
+ * and invalidate_dquots() waits for dquot to have dq_count == 0.
+ */
+
+static LIST_HEAD(inuse_list);
+static LIST_HEAD(free_dquots);
+static struct list_head dquot_hash[NR_DQHASH];
+
+static void dqput(struct dquot *);
+static struct dquot *dqduplicate(struct dquot *);
+
+static inline void get_dquot_ref(struct dquot *dquot)
+{
+	dquot->dq_count++;
+}
+
+static inline void put_dquot_ref(struct dquot *dquot)
+{
+	dquot->dq_count--;
+}
+
+static inline void get_dquot_dup_ref(struct dquot *dquot)
+{
+	dquot->dq_dup_ref++;
+}
+
+static inline void put_dquot_dup_ref(struct dquot *dquot)
+{
+	dquot->dq_dup_ref--;
+}
+
+static inline int const hashfn(struct super_block *sb, unsigned int id, int type)
+{
+	return((HASHDEV(sb->s_dev) ^ id) * (MAXQUOTAS - type)) % NR_DQHASH;
+}
+
+static inline void insert_dquot_hash(struct dquot *dquot)
+{
+	struct list_head *head = dquot_hash + hashfn(dquot->dq_sb, dquot->dq_id, dquot->dq_type);
+	list_add(&dquot->dq_hash, head);
+}
+
+static inline void remove_dquot_hash(struct dquot *dquot)
+{
+	list_del(&dquot->dq_hash);
+	INIT_LIST_HEAD(&dquot->dq_hash);
+}
+
+static inline struct dquot *find_dquot(unsigned int hashent, struct super_block *sb, unsigned int id, int type)
+{
+	struct list_head *head;
+	struct dquot *dquot;
+
+	for (head = dquot_hash[hashent].next; head != dquot_hash+hashent; head = head->next) {
+		dquot = list_entry(head, struct dquot, dq_hash);
+		if (dquot->dq_sb == sb && dquot->dq_id == id && dquot->dq_type == type)
+			return dquot;
+	}
+	return NODQUOT;
+}
+
+/* Add a dquot to the head of the free list */
+static inline void put_dquot_head(struct dquot *dquot)
+{
+	list_add(&dquot->dq_free, &free_dquots);
+	dqstats.free_dquots++;
+}
+
+/* Add a dquot to the tail of the free list */
+static inline void put_dquot_last(struct dquot *dquot)
+{
+	list_add(&dquot->dq_free, free_dquots.prev);
+	dqstats.free_dquots++;
+}
+
+/* Move dquot to the head of free list (it must be already on it) */
+static inline void move_dquot_head(struct dquot *dquot)
+{
+	list_del(&dquot->dq_free);
+	list_add(&dquot->dq_free, &free_dquots);
+}
+
+static inline void remove_free_dquot(struct dquot *dquot)
+{
+	if (list_empty(&dquot->dq_free))
+		return;
+	list_del(&dquot->dq_free);
+	INIT_LIST_HEAD(&dquot->dq_free);
+	dqstats.free_dquots--;
+}
+
+static inline void put_inuse(struct dquot *dquot)
+{
+	/* We add to the back of inuse list so we don't have to restart
+	 * when traversing this list and we block */
+	list_add(&dquot->dq_inuse, inuse_list.prev);
+	dqstats.allocated_dquots++;
+}
+
+static inline void remove_inuse(struct dquot *dquot)
+{
+	dqstats.allocated_dquots--;
+	list_del(&dquot->dq_inuse);
+}
+
+static void __wait_on_dquot(struct dquot *dquot)
+{
+	DECLARE_WAITQUEUE(wait, current);
+
+	add_wait_queue(&dquot->dq_wait_lock, &wait);
+repeat:
+	set_current_state(TASK_UNINTERRUPTIBLE);
+	if (dquot->dq_flags & DQ_LOCKED) {
+		schedule();
+		goto repeat;
+	}
+	remove_wait_queue(&dquot->dq_wait_lock, &wait);
+	current->state = TASK_RUNNING;
+}
+
+static inline void wait_on_dquot(struct dquot *dquot)
+{
+	if (dquot->dq_flags & DQ_LOCKED)
+		__wait_on_dquot(dquot);
+}
+
+static inline void lock_dquot(struct dquot *dquot)
+{
+	wait_on_dquot(dquot);
+	dquot->dq_flags |= DQ_LOCKED;
+}
+
+static inline void unlock_dquot(struct dquot *dquot)
+{
+	dquot->dq_flags &= ~DQ_LOCKED;
+	wake_up(&dquot->dq_wait_lock);
+}
+
+/* Wait for dquot to be unused */
+static void __wait_dquot_unused(struct dquot *dquot)
+{
+	DECLARE_WAITQUEUE(wait, current);
+
+	add_wait_queue(&dquot->dq_wait_free, &wait);
+repeat:
+	set_current_state(TASK_UNINTERRUPTIBLE);
+	if (dquot->dq_count) {
+		schedule();
+		goto repeat;
+	}
+	remove_wait_queue(&dquot->dq_wait_free, &wait);
+	current->state = TASK_RUNNING;
+}
+
+/* Wait for all duplicated dquot references to be dropped */
+static void __wait_dup_drop(struct dquot *dquot)
+{
+	DECLARE_WAITQUEUE(wait, current);
+
+	add_wait_queue(&dquot->dq_wait_free, &wait);
+repeat:
+	set_current_state(TASK_UNINTERRUPTIBLE);
+	if (dquot->dq_dup_ref) {
+		schedule();
+		goto repeat;
+	}
+	remove_wait_queue(&dquot->dq_wait_free, &wait);
+	current->state = TASK_RUNNING;
+}
+
+static int read_dqblk(struct dquot *dquot)
+{
+	int ret;
+	struct quota_info *dqopt = sb_dqopt(dquot->dq_sb);
+
+	lock_dquot(dquot);
+	down(&dqopt->dqio_sem);
+	ret = dqopt->ops[dquot->dq_type]->read_dqblk(dquot);
+	up(&dqopt->dqio_sem);
+	unlock_dquot(dquot);
+	return ret;
+}
+
+static int commit_dqblk(struct dquot *dquot)
+{
+	int ret;
+	struct quota_info *dqopt = sb_dqopt(dquot->dq_sb);
+
+	down(&dqopt->dqio_sem);
+	ret = dqopt->ops[dquot->dq_type]->commit_dqblk(dquot);
+	up(&dqopt->dqio_sem);
+	return ret;
+}
+
+/* Invalidate all dquots on the list, wait for all users. Note that this function is called
+ * after quota is disabled so no new quota might be created. As we only insert to the end of
+ * inuse list, we don't have to restart searching... */
+static void invalidate_dquots(struct super_block *sb, int type)
+{
+	struct dquot *dquot;
+	struct list_head *head;
+
+restart:
+	list_for_each(head, &inuse_list) {
+		dquot = list_entry(head, struct dquot, dq_inuse);
+		if (dquot->dq_sb != sb)
+			continue;
+		if (dquot->dq_type != type)
+			continue;
+		dquot->dq_flags |= DQ_INVAL;
+		if (dquot->dq_count)
+			/*
+			 *  Wait for any users of quota. As we have already cleared the flags in
+			 *  superblock and cleared all pointers from inodes we are assured
+			 *  that there will be no new users of this quota.
+			 */
+			__wait_dquot_unused(dquot);
+		/* Quota now have no users and it has been written on last dqput() */
+		remove_dquot_hash(dquot);
+		remove_free_dquot(dquot);
+		remove_inuse(dquot);
+		kmem_cache_free(dquot_cachep, dquot);
+		goto restart;
+	}
+}
+
+static int vfs_quota_sync(struct super_block *sb, int type)
+{
+	struct list_head *head;
+	struct dquot *dquot;
+	struct quota_info *dqopt = sb_dqopt(sb);
+	int cnt;
+
+restart:
+	list_for_each(head, &inuse_list) {
+		dquot = list_entry(head, struct dquot, dq_inuse);
+		if (sb && dquot->dq_sb != sb)
+			continue;
+                if (type != -1 && dquot->dq_type != type)
+			continue;
+		if (!dquot->dq_sb)	/* Invalidated? */
+			continue;
+		if (!dquot_dirty(dquot) && !(dquot->dq_flags & DQ_LOCKED))
+			continue;
+		/* Get reference to quota so it won't be invalidated. get_dquot_ref()
+		 * is enough since if dquot is locked/modified it can't be
+		 * on the free list */
+		get_dquot_ref(dquot);
+		dqstats.lookups++;
+		if (dquot->dq_flags & DQ_LOCKED)
+			wait_on_dquot(dquot);
+		if (dquot_dirty(dquot))
+			sb->dq_op->write_dquot(dquot);
+		/* Move the inuse_list head pointer to just after the
+		 * current dquot, so that we'll restart the list walk
+		 * after this point on the next pass. */
+		list_move(&inuse_list, &dquot->dq_inuse);
+		dqput(dquot);
+		goto restart;
+	}
+	for (cnt = 0; cnt < MAXQUOTAS; cnt++)
+		if ((cnt == type || type == -1) && sb_has_quota_enabled(sb, cnt))
+			dqopt->info[cnt].dqi_flags &= ~DQF_ANY_DQUOT_DIRTY;
+	for (cnt = 0; cnt < MAXQUOTAS; cnt++)
+		if ((cnt == type || type == -1) && sb_has_quota_enabled(sb, cnt) && info_dirty(&dqopt->info[cnt]))
+			dqopt->ops[cnt]->write_file_info(sb, cnt);
+	dqstats.syncs++;
+
+	return 0;
+}
+
+static struct super_block *get_super_to_sync(int type)
+{
+	struct list_head *head;
+	int cnt, dirty;
+
+restart:
+	spin_lock(&sb_lock);
+	list_for_each(head, &super_blocks) {
+		struct super_block *sb = list_entry(head, struct super_block, s_list);
+
+		for (cnt = 0, dirty = 0; cnt < MAXQUOTAS; cnt++)
+			if ((type == cnt || type == -1) && sb_has_quota_enabled(sb, cnt)
+			    && sb_dqopt(sb)->info[cnt].dqi_flags & DQF_ANY_DQUOT_DIRTY)
+				dirty = 1;
+		if (!dirty)
+			continue;
+		sb->s_count++;
+		spin_unlock(&sb_lock);
+		down_read(&sb->s_umount);
+		if (!sb->s_root) {
+			drop_super(sb);
+			goto restart;
+		}
+		return sb;
+	}
+	spin_unlock(&sb_lock);
+	return NULL;
+}
+
+void sync_dquots_dev(kdev_t dev, int type)
+{
+	struct super_block *sb;
+
+	if (dev) {
+		if ((sb = get_super(dev))) {
+			lock_kernel();
+			if (sb->s_qcop->quota_sync)
+				sb->s_qcop->quota_sync(sb, type);
+			unlock_kernel();
+			drop_super(sb);
+		}
+	}
+	else {
+		while ((sb = get_super_to_sync(type))) {
+			lock_kernel();
+			if (sb->s_qcop->quota_sync)
+				sb->s_qcop->quota_sync(sb, type);
+			unlock_kernel();
+			drop_super(sb);
+		}
+	}
+}
+
+void sync_dquots_sb(struct super_block *sb, int type)
+{
+	lock_kernel();
+	if (sb->s_qcop->quota_sync)
+		sb->s_qcop->quota_sync(sb, type);
+	unlock_kernel();
+}
+
+/* Free unused dquots from cache */
+static void prune_dqcache(int count)
+{
+	struct list_head *head;
+	struct dquot *dquot;
+
+	head = free_dquots.prev;
+	while (head != &free_dquots && count) {
+		dquot = list_entry(head, struct dquot, dq_free);
+		remove_dquot_hash(dquot);
+		remove_free_dquot(dquot);
+		remove_inuse(dquot);
+		kmem_cache_free(dquot_cachep, dquot);
+		count--;
+		head = free_dquots.prev;
+	}
+}
+
+/*
+ * This is called from kswapd when we think we need some
+ * more memory, but aren't really sure how much. So we
+ * carefully try to free a _bit_ of our dqcache, but not
+ * too much.
+ *
+ * Priority:
+ *   1 - very urgent: shrink everything
+ *   ...
+ *   6 - base-level: try to shrink a bit.
+ */
+
+int shrink_dqcache_memory(int priority, unsigned int gfp_mask)
+{
+	int count = 0;
+
+	lock_kernel();
+	count = dqstats.free_dquots / priority;
+	prune_dqcache(count);
+	unlock_kernel();
+	return kmem_cache_shrink(dquot_cachep);
+}
+
+/*
+ * Put reference to dquot
+ * NOTE: If you change this function please check whether dqput_blocks() works right...
+ */
+static void dqput(struct dquot *dquot)
+{
+	if (!dquot)
+		return;
+#ifdef __DQUOT_PARANOIA
+	if (!dquot->dq_count) {
+		printk("VFS: dqput: trying to free free dquot\n");
+		printk("VFS: device %s, dquot of %s %d\n",
+			kdevname(dquot->dq_dev), quotatypes[dquot->dq_type],
+			dquot->dq_id);
+		return;
+	}
+#endif
+
+	dqstats.drops++;
+we_slept:
+	if (dquot->dq_dup_ref && dquot->dq_count - dquot->dq_dup_ref <= 1) {	/* Last unduplicated reference? */
+		__wait_dup_drop(dquot);
+		goto we_slept;
+	}
+	if (dquot->dq_count > 1) {
+		/* We have more than one user... We can simply decrement use count */
+		put_dquot_ref(dquot);
+		return;
+	}
+	if (dquot_dirty(dquot)) {
+		dquot->dq_sb->dq_op->write_dquot(dquot);
+		goto we_slept;
+	}
+
+	/* sanity check */
+	if (!list_empty(&dquot->dq_free)) {
+		printk(KERN_ERR "dqput: dquot already on free list??\n");
+		put_dquot_ref(dquot);
+		return;
+	}
+	put_dquot_ref(dquot);
+	/* If dquot is going to be invalidated invalidate_dquots() is going to free it so */
+	if (!(dquot->dq_flags & DQ_INVAL))
+		put_dquot_last(dquot);	/* Place at end of LRU free queue */
+	wake_up(&dquot->dq_wait_free);
+}
+
+static struct dquot *get_empty_dquot(struct super_block *sb, int type)
+{
+	struct dquot *dquot;
+
+	dquot = kmem_cache_alloc(dquot_cachep, SLAB_KERNEL);
+	if(!dquot)
+		return NODQUOT;
+
+	memset((caddr_t)dquot, 0, sizeof(struct dquot));
+	init_waitqueue_head(&dquot->dq_wait_free);
+	init_waitqueue_head(&dquot->dq_wait_lock);
+	INIT_LIST_HEAD(&dquot->dq_free);
+	INIT_LIST_HEAD(&dquot->dq_inuse);
+	INIT_LIST_HEAD(&dquot->dq_hash);
+	dquot->dq_sb = sb;
+	dquot->dq_dev = sb->s_dev;
+	dquot->dq_type = type;
+	dquot->dq_count = 1;
+	/* all dquots go on the inuse_list */
+	put_inuse(dquot);
+
+	return dquot;
+}
+
+static struct dquot *dqget(struct super_block *sb, unsigned int id, int type)
+{
+	unsigned int hashent = hashfn(sb, id, type);
+	struct dquot *dquot, *empty = NODQUOT;
+	struct quota_info *dqopt = sb_dqopt(sb);
+
+we_slept:
+        if (!is_enabled(dqopt, type)) {
+		if (empty)
+			dqput(empty);
+                return NODQUOT;
+	}
+
+	if ((dquot = find_dquot(hashent, sb, id, type)) == NODQUOT) {
+		if (empty == NODQUOT) {
+			if ((empty = get_empty_dquot(sb, type)) == NODQUOT)
+				schedule();	/* Try to wait for a moment... */
+			goto we_slept;
+		}
+		dquot = empty;
+		dquot->dq_id = id;
+		/* hash it first so it can be found */
+		insert_dquot_hash(dquot);
+		read_dqblk(dquot);
+	} else {
+		if (!dquot->dq_count)
+			remove_free_dquot(dquot);
+		get_dquot_ref(dquot);
+		dqstats.cache_hits++;
+		wait_on_dquot(dquot);
+		if (empty)
+			dqput(empty);
+	}
+
+	if (!dquot->dq_sb) {	/* Has somebody invalidated entry under us? */
+		printk(KERN_ERR "VFS: dqget(): Quota invalidated in dqget()!\n");
+		dqput(dquot);
+		return NODQUOT;
+	}
+	dqstats.lookups++;
+
+	return dquot;
+}
+
+/* Duplicate reference to dquot got from inode */
+static struct dquot *dqduplicate(struct dquot *dquot)
+{
+	if (dquot == NODQUOT)
+		return NODQUOT;
+	get_dquot_ref(dquot);
+	if (!dquot->dq_sb) {
+		printk(KERN_ERR "VFS: dqduplicate(): Invalidated quota to be duplicated!\n");
+		put_dquot_ref(dquot);
+		return NODQUOT;
+	}
+	if (dquot->dq_flags & DQ_LOCKED)
+		printk(KERN_ERR "VFS: dqduplicate(): Locked quota to be duplicated!\n");
+	get_dquot_dup_ref(dquot);
+	dqstats.lookups++;
+
+	return dquot;
+}
+
+/* Put duplicated reference */
+static void dqputduplicate(struct dquot *dquot)
+{
+	if (!dquot->dq_dup_ref) {
+		printk(KERN_ERR "VFS: dqputduplicate(): Duplicated dquot put without duplicate reference.\n");
+		return;
+	}
+	put_dquot_dup_ref(dquot);
+	if (!dquot->dq_dup_ref)
+		wake_up(&dquot->dq_wait_free);
+	put_dquot_ref(dquot);
+	dqstats.drops++;
+}
+
+static int dqinit_needed(struct inode *inode, int type)
+{
+	int cnt;
+
+	if (IS_NOQUOTA(inode))
+		return 0;
+	if (type != -1)
+		return inode->i_dquot[type] == NODQUOT;
+	for (cnt = 0; cnt < MAXQUOTAS; cnt++)
+		if (inode->i_dquot[cnt] == NODQUOT)
+			return 1;
+	return 0;
+}
+
+static void add_dquot_ref(struct super_block *sb, int type)
+{
+	struct list_head *p;
+
+restart:
+	file_list_lock();
+	list_for_each(p, &sb->s_files) {
+		struct file *filp = list_entry(p, struct file, f_list);
+		struct inode *inode = filp->f_dentry->d_inode;
+		if (filp->f_mode & FMODE_WRITE && dqinit_needed(inode, type)) {
+			struct vfsmount *mnt = mntget(filp->f_vfsmnt);
+			struct dentry *dentry = dget(filp->f_dentry);
+			file_list_unlock();
+			sb->dq_op->initialize(inode, type);
+			dput(dentry);
+			mntput(mnt);
+			/* As we may have blocked we had better restart... */
+			goto restart;
+		}
+	}
+	file_list_unlock();
+}
+
+/* Return 0 if dqput() won't block (note that 1 doesn't necessarily mean blocking) */
+static inline int dqput_blocks(struct dquot *dquot)
+{
+	if (dquot->dq_dup_ref && dquot->dq_count - dquot->dq_dup_ref <= 1)
+		return 1;
+	if (dquot->dq_count <= 1 && dquot->dq_flags & DQ_MOD)
+		return 1;
+	return 0;
+}
+
+/* Remove references to dquots from inode - add dquot to list for freeing if needed */
+int remove_inode_dquot_ref(struct inode *inode, int type, struct list_head *tofree_head)
+{
+	struct dquot *dquot = inode->i_dquot[type];
+	int cnt;
+
+	inode->i_dquot[type] = NODQUOT;
+	/* any other quota in use? */
+	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
+		if (inode->i_dquot[cnt] != NODQUOT)
+			goto put_it;
+	}
+	inode->i_flags &= ~S_QUOTA;
+put_it:
+	if (dquot != NODQUOT) {
+		if (dqput_blocks(dquot)) {
+			if (dquot->dq_count != 1)
+				printk(KERN_WARNING "VFS: Adding dquot with dq_count %d to dispose list.\n", dquot->dq_count);
+			list_add(&dquot->dq_free, tofree_head);	/* As dquot must have currently users it can't be on the free list... */
+			return 1;
+		}
+		else
+			dqput(dquot);   /* We have guaranteed we won't block */
+	}
+	return 0;
+}
+
+/* Free list of dquots - called from inode.c */
+void put_dquot_list(struct list_head *tofree_head)
+{
+	struct list_head *act_head;
+	struct dquot *dquot;
+
+	lock_kernel();
+	act_head = tofree_head->next;
+	/* So now we have dquots on the list... Just free them */
+	while (act_head != tofree_head) {
+		dquot = list_entry(act_head, struct dquot, dq_free);
+		act_head = act_head->next;
+		list_del(&dquot->dq_free);	/* Remove dquot from the list so we won't have problems... */
+		INIT_LIST_HEAD(&dquot->dq_free);
+		dqput(dquot);
+	}
+	unlock_kernel();
+}
+
+static inline void dquot_incr_inodes(struct dquot *dquot, unsigned long number)
+{
+	dquot->dq_dqb.dqb_curinodes += number;
+	mark_dquot_dirty(dquot);
+}
+
+static inline void dquot_incr_space(struct dquot *dquot, qsize_t number)
+{
+	dquot->dq_dqb.dqb_curspace += number;
+	mark_dquot_dirty(dquot);
+}
+
+static inline void dquot_decr_inodes(struct dquot *dquot, unsigned long number)
+{
+	if (dquot->dq_dqb.dqb_curinodes > number)
+		dquot->dq_dqb.dqb_curinodes -= number;
+	else
+		dquot->dq_dqb.dqb_curinodes = 0;
+	if (dquot->dq_dqb.dqb_curinodes < dquot->dq_dqb.dqb_isoftlimit)
+		dquot->dq_dqb.dqb_itime = (time_t) 0;
+	dquot->dq_flags &= ~DQ_INODES;
+	mark_dquot_dirty(dquot);
+}
+
+static inline void dquot_decr_space(struct dquot *dquot, qsize_t number)
+{
+	if (dquot->dq_dqb.dqb_curspace > number)
+		dquot->dq_dqb.dqb_curspace -= number;
+	else
+		dquot->dq_dqb.dqb_curspace = 0;
+	if (toqb(dquot->dq_dqb.dqb_curspace) < dquot->dq_dqb.dqb_bsoftlimit)
+		dquot->dq_dqb.dqb_btime = (time_t) 0;
+	dquot->dq_flags &= ~DQ_BLKS;
+	mark_dquot_dirty(dquot);
+}
+
+static int flag_print_warnings = 1;
+
+static inline int need_print_warning(struct dquot *dquot, int flag)
+{
+	if (!flag_print_warnings)
+		return 0;
+
+	switch (dquot->dq_type) {
+		case USRQUOTA:
+			return current->fsuid == dquot->dq_id && !(dquot->dq_flags & flag);
+		case GRPQUOTA:
+			return in_group_p(dquot->dq_id) && !(dquot->dq_flags & flag);
+	}
+	return 0;
+}
+
+/* Values of warnings */
+#define NOWARN 0
+#define IHARDWARN 1
+#define ISOFTLONGWARN 2
+#define ISOFTWARN 3
+#define BHARDWARN 4
+#define BSOFTLONGWARN 5
+#define BSOFTWARN 6
+
+/* Print warning to user which exceeded quota */
+static void print_warning(struct dquot *dquot, const char warntype)
+{
+	char *msg = NULL;
+	int flag = (warntype == BHARDWARN || warntype == BSOFTLONGWARN) ? DQ_BLKS :
+	  ((warntype == IHARDWARN || warntype == ISOFTLONGWARN) ? DQ_INODES : 0);
+
+	if (!need_print_warning(dquot, flag))
+		return;
+	dquot->dq_flags |= flag;
+	tty_write_message(current->tty, (char *)bdevname(dquot->dq_sb->s_dev));
+	if (warntype == ISOFTWARN || warntype == BSOFTWARN)
+		tty_write_message(current->tty, ": warning, ");
+	else
+		tty_write_message(current->tty, ": write failed, ");
+	tty_write_message(current->tty, quotatypes[dquot->dq_type]);
+	switch (warntype) {
+		case IHARDWARN:
+			msg = " file limit reached.\r\n";
+			break;
+		case ISOFTLONGWARN:
+			msg = " file quota exceeded too long.\r\n";
+			break;
+		case ISOFTWARN:
+			msg = " file quota exceeded.\r\n";
+			break;
+		case BHARDWARN:
+			msg = " block limit reached.\r\n";
+			break;
+		case BSOFTLONGWARN:
+			msg = " block quota exceeded too long.\r\n";
+			break;
+		case BSOFTWARN:
+			msg = " block quota exceeded.\r\n";
+			break;
+	}
+	tty_write_message(current->tty, msg);
+}
+
+static inline void flush_warnings(struct dquot **dquots, char *warntype)
+{
+	int i;
+
+	for (i = 0; i < MAXQUOTAS; i++)
+		if (dquots[i] != NODQUOT && warntype[i] != NOWARN)
+			print_warning(dquots[i], warntype[i]);
+}
+
+static inline char ignore_hardlimit(struct dquot *dquot)
+{
+	struct mem_dqinfo *info = &sb_dqopt(dquot->dq_sb)->info[dquot->dq_type];
+
+	return capable(CAP_SYS_RESOURCE) &&
+	    (info->dqi_format->qf_fmt_id != QFMT_VFS_OLD || !(info->dqi_flags & V1_DQF_RSQUASH));
+}
+
+static int check_idq(struct dquot *dquot, ulong inodes, char *warntype)
+{
+	*warntype = NOWARN;
+	if (inodes <= 0 || dquot->dq_flags & DQ_FAKE)
+		return QUOTA_OK;
+
+	if (dquot->dq_dqb.dqb_ihardlimit &&
+	   (dquot->dq_dqb.dqb_curinodes + inodes) > dquot->dq_dqb.dqb_ihardlimit &&
+            !ignore_hardlimit(dquot)) {
+		*warntype = IHARDWARN;
+		return NO_QUOTA;
+	}
+
+	if (dquot->dq_dqb.dqb_isoftlimit &&
+	   (dquot->dq_dqb.dqb_curinodes + inodes) > dquot->dq_dqb.dqb_isoftlimit &&
+	    dquot->dq_dqb.dqb_itime && CURRENT_TIME >= dquot->dq_dqb.dqb_itime &&
+            !ignore_hardlimit(dquot)) {
+		*warntype = ISOFTLONGWARN;
+		return NO_QUOTA;
+	}
+
+	if (dquot->dq_dqb.dqb_isoftlimit &&
+	   (dquot->dq_dqb.dqb_curinodes + inodes) > dquot->dq_dqb.dqb_isoftlimit &&
+	    dquot->dq_dqb.dqb_itime == 0) {
+		*warntype = ISOFTWARN;
+		dquot->dq_dqb.dqb_itime = CURRENT_TIME + sb_dqopt(dquot->dq_sb)->info[dquot->dq_type].dqi_igrace;
+	}
+
+	return QUOTA_OK;
+}
+
+static int check_bdq(struct dquot *dquot, qsize_t space, int prealloc, char *warntype)
+{
+	*warntype = 0;
+	if (space <= 0 || dquot->dq_flags & DQ_FAKE)
+		return QUOTA_OK;
+
+	if (dquot->dq_dqb.dqb_bhardlimit &&
+	   toqb(dquot->dq_dqb.dqb_curspace + space) > dquot->dq_dqb.dqb_bhardlimit &&
+            !ignore_hardlimit(dquot)) {
+		if (!prealloc)
+			*warntype = BHARDWARN;
+		return NO_QUOTA;
+	}
+
+	if (dquot->dq_dqb.dqb_bsoftlimit &&
+	   toqb(dquot->dq_dqb.dqb_curspace + space) > dquot->dq_dqb.dqb_bsoftlimit &&
+	    dquot->dq_dqb.dqb_btime && CURRENT_TIME >= dquot->dq_dqb.dqb_btime &&
+            !ignore_hardlimit(dquot)) {
+		if (!prealloc)
+			*warntype = BSOFTLONGWARN;
+		return NO_QUOTA;
+	}
+
+	if (dquot->dq_dqb.dqb_bsoftlimit &&
+	   toqb(dquot->dq_dqb.dqb_curspace + space) > dquot->dq_dqb.dqb_bsoftlimit &&
+	    dquot->dq_dqb.dqb_btime == 0) {
+		if (!prealloc) {
+			*warntype = BSOFTWARN;
+			dquot->dq_dqb.dqb_btime = CURRENT_TIME + sb_dqopt(dquot->dq_sb)->info[dquot->dq_type].dqi_bgrace;
+		}
+		else
+			/*
+			 * We don't allow preallocation to exceed softlimit so exceeding will
+			 * be always printed
+			 */
+			return NO_QUOTA;
+	}
+
+	return QUOTA_OK;
+}
+
+/*
+ * Externally referenced functions through dquot_operations in inode.
+ *
+ * Note: this is a blocking operation.
+ */
+void dquot_initialize(struct inode *inode, int type)
+{
+	struct dquot *dquot[MAXQUOTAS];
+	unsigned int id = 0;
+	int cnt;
+
+	if (IS_NOQUOTA(inode))
+		return;
+	/* Build list of quotas to initialize... We can block here */
+	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
+		dquot[cnt] = NODQUOT;
+		if (type != -1 && cnt != type)
+			continue;
+		if (!sb_has_quota_enabled(inode->i_sb, cnt))
+			continue;
+		if (inode->i_dquot[cnt] == NODQUOT) {
+			switch (cnt) {
+				case USRQUOTA:
+					id = inode->i_uid;
+					break;
+				case GRPQUOTA:
+					id = inode->i_gid;
+					break;
+			}
+			dquot[cnt] = dqget(inode->i_sb, id, cnt);
+		}
+	}
+	/* NOBLOCK START: Here we shouldn't block */
+	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
+		if (dquot[cnt] == NODQUOT || !sb_has_quota_enabled(inode->i_sb, cnt) || inode->i_dquot[cnt] != NODQUOT)
+			continue;
+		inode->i_dquot[cnt] = dquot[cnt];
+		dquot[cnt] = NODQUOT;
+		inode->i_flags |= S_QUOTA;
+	}
+	/* NOBLOCK END */
+	/* Put quotas which we didn't use */
+	for (cnt = 0; cnt < MAXQUOTAS; cnt++)
+		if (dquot[cnt] != NODQUOT)
+			dqput(dquot[cnt]);
+}
+
+/*
+ * Release all quota for the specified inode.
+ *
+ * Note: this is a blocking operation.
+ */
+void dquot_drop(struct inode *inode)
+{
+	struct dquot *dquot;
+	int cnt;
+
+	inode->i_flags &= ~S_QUOTA;
+	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
+		if (inode->i_dquot[cnt] == NODQUOT)
+			continue;
+		dquot = inode->i_dquot[cnt];
+		inode->i_dquot[cnt] = NODQUOT;
+		dqput(dquot);
+	}
+}
+
+/*
+ * This operation can block, but only after everything is updated
+ */
+int dquot_alloc_space(struct inode *inode, qsize_t number, int warn)
+{
+	int cnt, ret = NO_QUOTA;
+	struct dquot *dquot[MAXQUOTAS];
+	char warntype[MAXQUOTAS];
+
+	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
+		dquot[cnt] = NODQUOT;
+		warntype[cnt] = NOWARN;
+	}
+	/* NOBLOCK Start */
+	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
+		dquot[cnt] = dqduplicate(inode->i_dquot[cnt]);
+		if (dquot[cnt] == NODQUOT)
+			continue;
+		if (check_bdq(dquot[cnt], number, warn, warntype+cnt) == NO_QUOTA)
+			goto warn_put_all;
+	}
+	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
+		if (dquot[cnt] == NODQUOT)
+			continue;
+		dquot_incr_space(dquot[cnt], number);
+	}
+	inode_add_bytes(inode, number);
+	/* NOBLOCK End */
+	ret = QUOTA_OK;
+warn_put_all:
+	flush_warnings(dquot, warntype);
+	for (cnt = 0; cnt < MAXQUOTAS; cnt++)
+		if (dquot[cnt] != NODQUOT)
+			dqputduplicate(dquot[cnt]);
+	return ret;
+}
+
+/*
+ * This operation can block, but only after everything is updated
+ */
+int dquot_alloc_inode(const struct inode *inode, unsigned long number)
+{
+	int cnt, ret = NO_QUOTA;
+	struct dquot *dquot[MAXQUOTAS];
+	char warntype[MAXQUOTAS];
+
+	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
+		dquot[cnt] = NODQUOT;
+		warntype[cnt] = NOWARN;
+	}
+	/* NOBLOCK Start */
+	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
+		dquot[cnt] = dqduplicate(inode -> i_dquot[cnt]);
+		if (dquot[cnt] == NODQUOT)
+			continue;
+		if (check_idq(dquot[cnt], number, warntype+cnt) == NO_QUOTA)
+			goto warn_put_all;
+	}
+
+	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
+		if (dquot[cnt] == NODQUOT)
+			continue;
+		dquot_incr_inodes(dquot[cnt], number);
+	}
+	/* NOBLOCK End */
+	ret = QUOTA_OK;
+warn_put_all:
+	flush_warnings(dquot, warntype);
+	for (cnt = 0; cnt < MAXQUOTAS; cnt++)
+		if (dquot[cnt] != NODQUOT)
+			dqputduplicate(dquot[cnt]);
+	return ret;
+}
+
+/*
+ * This is a non-blocking operation.
+ */
+void dquot_free_space(struct inode *inode, qsize_t number)
+{
+	unsigned int cnt;
+	struct dquot *dquot;
+
+	/* NOBLOCK Start */
+	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
+		dquot = dqduplicate(inode->i_dquot[cnt]);
+		if (dquot == NODQUOT)
+			continue;
+		dquot_decr_space(dquot, number);
+		dqputduplicate(dquot);
+	}
+	inode_sub_bytes(inode, number);
+	/* NOBLOCK End */
+}
+
+/*
+ * This is a non-blocking operation.
+ */
+void dquot_free_inode(const struct inode *inode, unsigned long number)
+{
+	unsigned int cnt;
+	struct dquot *dquot;
+
+	/* NOBLOCK Start */
+	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
+		dquot = dqduplicate(inode->i_dquot[cnt]);
+		if (dquot == NODQUOT)
+			continue;
+		dquot_decr_inodes(dquot, number);
+		dqputduplicate(dquot);
+	}
+	/* NOBLOCK End */
+}
+
+/*
+ * Transfer the number of inode and blocks from one diskquota to an other.
+ *
+ * This operation can block, but only after everything is updated
+ */
+int dquot_transfer(struct inode *inode, struct iattr *iattr)
+{
+	qsize_t space;
+	struct dquot *transfer_from[MAXQUOTAS];
+	struct dquot *transfer_to[MAXQUOTAS];
+	int cnt, ret = NO_QUOTA, chuid = (iattr->ia_valid & ATTR_UID) && inode->i_uid != iattr->ia_uid,
+	    chgid = (iattr->ia_valid & ATTR_GID) && inode->i_gid != iattr->ia_gid;
+	char warntype[MAXQUOTAS];
+
+	/* Clear the arrays */
+	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
+		transfer_to[cnt] = transfer_from[cnt] = NODQUOT;
+		warntype[cnt] = NOWARN;
+	}
+	/* First build the transfer_to list - here we can block on reading of dquots... */
+	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
+		if (!sb_has_quota_enabled(inode->i_sb, cnt))
+			continue;
+		switch (cnt) {
+			case USRQUOTA:
+				if (!chuid)
+					continue;
+				transfer_to[cnt] = dqget(inode->i_sb, iattr->ia_uid, cnt);
+				break;
+			case GRPQUOTA:
+				if (!chgid)
+					continue;
+				transfer_to[cnt] = dqget(inode->i_sb, iattr->ia_gid, cnt);
+				break;
+		}
+	}
+	/* NOBLOCK START: From now on we shouldn't block */
+	space = inode_get_bytes(inode);
+	/* Build the transfer_from list and check the limits */
+	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
+		/* The second test can fail when quotaoff is in progress... */
+		if (transfer_to[cnt] == NODQUOT || !sb_has_quota_enabled(inode->i_sb, cnt))
+			continue;
+		transfer_from[cnt] = dqduplicate(inode->i_dquot[cnt]);
+		if (transfer_from[cnt] == NODQUOT)	/* Can happen on quotafiles (quota isn't initialized on them)... */
+			continue;
+		if (check_idq(transfer_to[cnt], 1, warntype+cnt) == NO_QUOTA ||
+		    check_bdq(transfer_to[cnt], space, 0, warntype+cnt) == NO_QUOTA)
+			goto warn_put_all;
+	}
+
+	/*
+	 * Finally perform the needed transfer from transfer_from to transfer_to
+	 */
+	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
+		/*
+		 * Skip changes for same uid or gid or for non-existing quota-type.
+		 */
+		if (transfer_from[cnt] == NODQUOT || transfer_to[cnt] == NODQUOT)
+			continue;
+
+		dquot_decr_inodes(transfer_from[cnt], 1);
+		dquot_decr_space(transfer_from[cnt], space);
+
+		dquot_incr_inodes(transfer_to[cnt], 1);
+		dquot_incr_space(transfer_to[cnt], space);
+
+		if (inode->i_dquot[cnt] == NODQUOT)
+			BUG();
+		inode->i_dquot[cnt] = transfer_to[cnt];
+		/*
+		 * We've got to release transfer_from[] twice - once for dquot_transfer() and
+		 * once for inode. We don't want to release transfer_to[] as it's now placed in inode
+		 */
+		transfer_to[cnt] = transfer_from[cnt];
+	}
+	/* NOBLOCK END. From now on we can block as we wish */
+	ret = QUOTA_OK;
+warn_put_all:
+	flush_warnings(transfer_to, warntype);
+	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
+		/* First we must put duplicate - otherwise we might deadlock */
+		if (transfer_from[cnt] != NODQUOT)
+			dqputduplicate(transfer_from[cnt]);
+		if (transfer_to[cnt] != NODQUOT)
+			dqput(transfer_to[cnt]);
+	}
+	return ret;
+}
+
+/*
+ * Definitions of diskquota operations.
+ */
+struct dquot_operations dquot_operations = {
+	initialize:	dquot_initialize,		/* mandatory */
+	drop:		dquot_drop,			/* mandatory */
+	alloc_space:	dquot_alloc_space,
+	alloc_inode:	dquot_alloc_inode,
+	free_space:	dquot_free_space,
+	free_inode:	dquot_free_inode,
+	transfer:	dquot_transfer,
+	write_dquot:	commit_dqblk
+};
+
+/* Function used by filesystems for initializing the dquot_operations structure */
+void init_dquot_operations(struct dquot_operations *fsdqops)
+{
+	memcpy(fsdqops, &dquot_operations, sizeof(dquot_operations));
+}
+
+static inline void set_enable_flags(struct quota_info *dqopt, int type)
+{
+	switch (type) {
+		case USRQUOTA:
+			dqopt->flags |= DQUOT_USR_ENABLED;
+			break;
+		case GRPQUOTA:
+			dqopt->flags |= DQUOT_GRP_ENABLED;
+			break;
+	}
+}
+
+static inline void reset_enable_flags(struct quota_info *dqopt, int type)
+{
+	switch (type) {
+		case USRQUOTA:
+			dqopt->flags &= ~DQUOT_USR_ENABLED;
+			break;
+		case GRPQUOTA:
+			dqopt->flags &= ~DQUOT_GRP_ENABLED;
+			break;
+	}
+}
+
+/* Function in inode.c - remove pointers to dquots in icache */
+extern void remove_dquot_ref(struct super_block *, int);
+
+/*
+ * Turn quota off on a device. type == -1 ==> quotaoff for all types (umount)
+ */
+int vfs_quota_off(struct super_block *sb, int type)
+{
+	int cnt;
+	struct quota_info *dqopt = sb_dqopt(sb);
+
+	lock_kernel();
+	if (!sb)
+		goto out;
+
+	/* We need to serialize quota_off() for device */
+	down(&dqopt->dqoff_sem);
+	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
+		if (type != -1 && cnt != type)
+			continue;
+		if (!is_enabled(dqopt, cnt))
+			continue;
+		reset_enable_flags(dqopt, cnt);
+
+		/* Note: these are blocking operations */
+		remove_dquot_ref(sb, cnt);
+		invalidate_dquots(sb, cnt);
+		if (info_dirty(&dqopt->info[cnt]))
+			dqopt->ops[cnt]->write_file_info(sb, cnt);
+		if (dqopt->ops[cnt]->free_file_info)
+			dqopt->ops[cnt]->free_file_info(sb, cnt);
+		put_quota_format(dqopt->info[cnt].dqi_format);
+
+		fput(dqopt->files[cnt]);
+		dqopt->files[cnt] = (struct file *)NULL;
+		dqopt->info[cnt].dqi_flags = 0;
+		dqopt->info[cnt].dqi_igrace = 0;
+		dqopt->info[cnt].dqi_bgrace = 0;
+		dqopt->ops[cnt] = NULL;
+	}
+	up(&dqopt->dqoff_sem);
+out:
+	unlock_kernel();
+	return 0;
+}
+
+int vfs_quota_on(struct super_block *sb, int type, int format_id, char *path)
+{
+	struct file *f = NULL;
+	struct inode *inode;
+	struct quota_info *dqopt = sb_dqopt(sb);
+	struct quota_format_type *fmt = find_quota_format(format_id);
+	int error;
+
+	if (!fmt)
+		return -ESRCH;
+	if (is_enabled(dqopt, type)) {
+		error = -EBUSY;
+		goto out_fmt;
+	}
+
+	down(&dqopt->dqoff_sem);
+
+	f = filp_open(path, O_RDWR, 0600);
+
+	error = PTR_ERR(f);
+	if (IS_ERR(f))
+		goto out_lock;
+	dqopt->files[type] = f;
+	error = -EIO;
+	if (!f->f_op || !f->f_op->read || !f->f_op->write)
+		goto out_f;
+	inode = f->f_dentry->d_inode;
+	error = -EACCES;
+	if (!S_ISREG(inode->i_mode))
+		goto out_f;
+	error = -EINVAL;
+	if (!fmt->qf_ops->check_quota_file(sb, type))
+		goto out_f;
+	/* We don't want quota and atime on quota files */
+	dquot_drop(inode);
+	inode->i_flags |= S_NOQUOTA | S_NOATIME;
+
+	dqopt->ops[type] = fmt->qf_ops;
+	dqopt->info[type].dqi_format = fmt;
+	if ((error = dqopt->ops[type]->read_file_info(sb, type)) < 0)
+		goto out_f;
+	set_enable_flags(dqopt, type);
+
+	add_dquot_ref(sb, type);
+
+	up(&dqopt->dqoff_sem);
+	return 0;
+
+out_f:
+	if (f)
+		filp_close(f, NULL);
+	dqopt->files[type] = NULL;
+out_lock:
+	up(&dqopt->dqoff_sem);
+out_fmt:
+	put_quota_format(fmt);
+
+	return error; 
+}
+
+/* Generic routine for getting common part of quota structure */
+static void do_get_dqblk(struct dquot *dquot, struct if_dqblk *di)
+{
+	struct mem_dqblk *dm = &dquot->dq_dqb;
+
+	di->dqb_bhardlimit = dm->dqb_bhardlimit;
+	di->dqb_bsoftlimit = dm->dqb_bsoftlimit;
+	di->dqb_curspace = dm->dqb_curspace;
+	di->dqb_ihardlimit = dm->dqb_ihardlimit;
+	di->dqb_isoftlimit = dm->dqb_isoftlimit;
+	di->dqb_curinodes = dm->dqb_curinodes;
+	di->dqb_btime = dm->dqb_btime;
+	di->dqb_itime = dm->dqb_itime;
+	di->dqb_valid = QIF_ALL;
+}
+
+int vfs_get_dqblk(struct super_block *sb, int type, qid_t id, struct if_dqblk *di)
+{
+	struct dquot *dquot = dqget(sb, id, type);
+
+	if (!dquot)
+		return -EINVAL;
+	do_get_dqblk(dquot, di);
+	dqput(dquot);
+	return 0;
+}
+
+/* Generic routine for setting common part of quota structure */
+static void do_set_dqblk(struct dquot *dquot, struct if_dqblk *di)
+{
+	struct mem_dqblk *dm = &dquot->dq_dqb;
+	int check_blim = 0, check_ilim = 0;
+
+	if (di->dqb_valid & QIF_SPACE) {
+		dm->dqb_curspace = di->dqb_curspace;
+		check_blim = 1;
+	}
+	if (di->dqb_valid & QIF_BLIMITS) {
+		dm->dqb_bsoftlimit = di->dqb_bsoftlimit;
+		dm->dqb_bhardlimit = di->dqb_bhardlimit;
+		check_blim = 1;
+	}
+	if (di->dqb_valid & QIF_INODES) {
+		dm->dqb_curinodes = di->dqb_curinodes;
+		check_ilim = 1;
+	}
+	if (di->dqb_valid & QIF_ILIMITS) {
+		dm->dqb_isoftlimit = di->dqb_isoftlimit;
+		dm->dqb_ihardlimit = di->dqb_ihardlimit;
+		check_ilim = 1;
+	}
+	if (di->dqb_valid & QIF_BTIME)
+		dm->dqb_btime = di->dqb_btime;
+	if (di->dqb_valid & QIF_ITIME)
+		dm->dqb_itime = di->dqb_itime;
+
+	if (check_blim) {
+		if (!dm->dqb_bsoftlimit || toqb(dm->dqb_curspace) < dm->dqb_bsoftlimit) {
+			dm->dqb_btime = 0;
+			dquot->dq_flags &= ~DQ_BLKS;
+		}
+		else if (!(di->dqb_valid & QIF_BTIME))	/* Set grace only if user hasn't provided his own... */
+			dm->dqb_btime = CURRENT_TIME + sb_dqopt(dquot->dq_sb)->info[dquot->dq_type].dqi_bgrace;
+	}
+	if (check_ilim) {
+		if (!dm->dqb_isoftlimit || dm->dqb_curinodes < dm->dqb_isoftlimit) {
+			dm->dqb_itime = 0;
+			dquot->dq_flags &= ~DQ_INODES;
+		}
+		else if (!(di->dqb_valid & QIF_ITIME))	/* Set grace only if user hasn't provided his own... */
+			dm->dqb_itime = CURRENT_TIME + sb_dqopt(dquot->dq_sb)->info[dquot->dq_type].dqi_igrace;
+	}
+	if (dm->dqb_bhardlimit || dm->dqb_bsoftlimit || dm->dqb_ihardlimit || dm->dqb_isoftlimit)
+		dquot->dq_flags &= ~DQ_FAKE;
+	else
+		dquot->dq_flags |= DQ_FAKE;
+	dquot->dq_flags |= DQ_MOD;
+}
+
+int vfs_set_dqblk(struct super_block *sb, int type, qid_t id, struct if_dqblk *di)
+{
+	struct dquot *dquot = dqget(sb, id, type);
+
+	if (!dquot)
+		return -EINVAL;
+	do_set_dqblk(dquot, di);
+	dqput(dquot);
+	return 0;
+}
+
+/* Generic routine for getting common part of quota file information */
+int vfs_get_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii)
+{
+	struct mem_dqinfo *mi = sb_dqopt(sb)->info + type;
+
+	ii->dqi_bgrace = mi->dqi_bgrace;
+	ii->dqi_igrace = mi->dqi_igrace;
+	ii->dqi_flags = mi->dqi_flags & DQF_MASK;
+	ii->dqi_valid = IIF_ALL;
+	return 0;
+}
+
+/* Generic routine for setting common part of quota file information */
+int vfs_set_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii)
+{
+	struct mem_dqinfo *mi = sb_dqopt(sb)->info + type;
+
+	if (ii->dqi_valid & IIF_BGRACE)
+		mi->dqi_bgrace = ii->dqi_bgrace;
+	if (ii->dqi_valid & IIF_IGRACE)
+		mi->dqi_igrace = ii->dqi_igrace;
+	if (ii->dqi_valid & IIF_FLAGS)
+		mi->dqi_flags = (mi->dqi_flags & ~DQF_MASK) | (ii->dqi_flags & DQF_MASK);
+	mark_info_dirty(mi);
+	return 0;
+}
+
+struct quotactl_ops vfs_quotactl_ops = {
+	quota_on:	vfs_quota_on,
+	quota_off:	vfs_quota_off,
+	quota_sync:	vfs_quota_sync,
+	get_info:	vfs_get_dqinfo,
+	set_info:	vfs_set_dqinfo,
+	get_dqblk:	vfs_get_dqblk,
+	set_dqblk:	vfs_set_dqblk
+};
+
+static ctl_table fs_dqstats_table[] = {
+	{FS_DQ_LOOKUPS, "lookups", &dqstats.lookups, sizeof(int), 0444, NULL, &proc_dointvec},
+	{FS_DQ_DROPS, "drops", &dqstats.drops, sizeof(int), 0444, NULL, &proc_dointvec},
+	{FS_DQ_READS, "reads", &dqstats.reads, sizeof(int), 0444, NULL, &proc_dointvec},
+	{FS_DQ_WRITES, "writes", &dqstats.writes, sizeof(int), 0444, NULL, &proc_dointvec},
+	{FS_DQ_CACHE_HITS, "cache_hits", &dqstats.cache_hits, sizeof(int), 0444, NULL, &proc_dointvec},
+	{FS_DQ_ALLOCATED, "allocated_dquots", &dqstats.allocated_dquots, sizeof(int), 0444, NULL, &proc_dointvec},
+	{FS_DQ_FREE, "free_dquots", &dqstats.free_dquots, sizeof(int), 0444, NULL, &proc_dointvec},
+	{FS_DQ_SYNCS, "syncs", &dqstats.syncs, sizeof(int), 0444, NULL, &proc_dointvec},
+	{FS_DQ_WARNINGS, "warnings", &flag_print_warnings, sizeof(int), 0644, NULL, &proc_dointvec},
+	{},
+};
+
+static ctl_table fs_table[] = {
+	{FS_DQSTATS, "quota", NULL, 0, 0555, fs_dqstats_table},
+	{},
+};
+
+static ctl_table sys_table[] = {
+	{CTL_FS, "fs", NULL, 0, 0555, fs_table},
+	{},
+};
+
+static int __init dquot_init(void)
+{
+	int i;
+
+	register_sysctl_table(sys_table, 0);
+	for (i = 0; i < NR_DQHASH; i++)
+		INIT_LIST_HEAD(dquot_hash + i);
+	printk(KERN_NOTICE "VFS: Disk quotas v%s\n", __DQUOT_VERSION__);
+
+	return 0;
+}
+__initcall(dquot_init);
+
+EXPORT_SYMBOL(register_quota_format);
+EXPORT_SYMBOL(unregister_quota_format);
+EXPORT_SYMBOL(dqstats);
+EXPORT_SYMBOL(init_dquot_operations);
diff --git a/fs/efs/Makefile b/fs/efs/Makefile
new file mode 100644
index 00000000000000..9352c722b925f5
--- /dev/null
+++ b/fs/efs/Makefile
@@ -0,0 +1,15 @@
+#
+# Makefile for the linux efs-filesystem routines.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile...
+
+O_TARGET := efs.o
+
+obj-y    := super.o inode.o namei.o dir.o file.o symlink.o
+obj-m    := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/efs/dir.c b/fs/efs/dir.c
new file mode 100644
index 00000000000000..cc7df77a034adf
--- /dev/null
+++ b/fs/efs/dir.c
@@ -0,0 +1,107 @@
+/*
+ * dir.c
+ *
+ * Copyright (c) 1999 Al Smith
+ */
+
+#include <linux/efs_fs.h>
+
+static int efs_readdir(struct file *, void *, filldir_t);
+
+struct file_operations efs_dir_operations = {
+	read:		generic_read_dir,
+	readdir:	efs_readdir,
+};
+
+struct inode_operations efs_dir_inode_operations = {
+	lookup:		efs_lookup,
+};
+
+static int efs_readdir(struct file *filp, void *dirent, filldir_t filldir) {
+	struct inode *inode = filp->f_dentry->d_inode;
+	struct buffer_head *bh;
+
+	struct efs_dir		*dirblock;
+	struct efs_dentry	*dirslot;
+	efs_ino_t		inodenum;
+	efs_block_t		block;
+	int			slot, namelen;
+	char			*nameptr;
+
+	if (inode->i_size & (EFS_DIRBSIZE-1))
+		printk(KERN_WARNING "EFS: WARNING: readdir(): directory size not a multiple of EFS_DIRBSIZE\n");
+
+	/* work out where this entry can be found */
+	block = filp->f_pos >> EFS_DIRBSIZE_BITS;
+
+	/* each block contains at most 256 slots */
+	slot  = filp->f_pos & 0xff;
+
+	/* look at all blocks */
+	while (block < inode->i_blocks) {
+		/* read the dir block */
+		bh = sb_bread(inode->i_sb, efs_bmap(inode, block));
+
+		if (!bh) {
+			printk(KERN_ERR "EFS: readdir(): failed to read dir block %d\n", block);
+			break;
+		}
+
+		dirblock = (struct efs_dir *) bh->b_data; 
+
+		if (be16_to_cpu(dirblock->magic) != EFS_DIRBLK_MAGIC) {
+			printk(KERN_ERR "EFS: readdir(): invalid directory block\n");
+			brelse(bh);
+			break;
+		}
+
+		while (slot < dirblock->slots) {
+			if (dirblock->space[slot] == 0) {
+				slot++;
+				continue;
+			}
+
+			dirslot  = (struct efs_dentry *) (((char *) bh->b_data) + EFS_SLOTAT(dirblock, slot));
+
+			inodenum = be32_to_cpu(dirslot->inode);
+			namelen  = dirslot->namelen;
+			nameptr  = dirslot->name;
+
+#ifdef DEBUG
+			printk(KERN_DEBUG "EFS: readdir(): block %d slot %d/%d: inode %u, name \"%s\", namelen %u\n", block, slot, dirblock->slots-1, inodenum, nameptr, namelen);
+#endif
+			if (namelen > 0) {
+				/* found the next entry */
+				filp->f_pos = (block << EFS_DIRBSIZE_BITS) | slot;
+
+				/* copy filename and data in dirslot */
+				filldir(dirent, nameptr, namelen, filp->f_pos, inodenum, DT_UNKNOWN);
+
+				/* sanity check */
+				if (nameptr - (char *) dirblock + namelen > EFS_DIRBSIZE) {
+					printk(KERN_WARNING "EFS: directory entry %d exceeds directory block\n", slot);
+					slot++;
+					continue;
+				}
+
+				/* store position of next slot */
+				if (++slot == dirblock->slots) {
+					slot = 0;
+					block++;
+				}
+				brelse(bh);
+				filp->f_pos = (block << EFS_DIRBSIZE_BITS) | slot;
+				return 0;
+			}
+			slot++;
+		}
+		brelse(bh);
+
+		slot = 0;
+		block++;
+	}
+
+	filp->f_pos = (block << EFS_DIRBSIZE_BITS) | slot;
+	return 0;
+}
+
diff --git a/fs/efs/file.c b/fs/efs/file.c
new file mode 100644
index 00000000000000..67f58987ead05b
--- /dev/null
+++ b/fs/efs/file.c
@@ -0,0 +1,62 @@
+/*
+ * file.c
+ *
+ * Copyright (c) 1999 Al Smith
+ *
+ * Portions derived from work (c) 1995,1996 Christian Vogelgsang.
+ */
+
+#include <linux/efs_fs.h>
+
+int efs_get_block(struct inode *inode, long iblock,
+		  struct buffer_head *bh_result, int create)
+{
+	int error = -EROFS;
+	long phys;
+
+	if (create)
+		return error;
+	if (iblock >= inode->i_blocks) {
+#ifdef DEBUG
+		/*
+		 * i have no idea why this happens as often as it does
+		 */
+		printk(KERN_WARNING "EFS: bmap(): block %d >= %ld (filesize %ld)\n",
+			block,
+			inode->i_blocks,
+			inode->i_size);
+#endif
+		return 0;
+	}
+	phys = efs_map_block(inode, iblock);
+	if (phys) {
+		bh_result->b_dev = inode->i_dev;
+		bh_result->b_blocknr = phys;
+		bh_result->b_state |= (1UL << BH_Mapped);
+	}
+	return 0;
+}
+
+int efs_bmap(struct inode *inode, efs_block_t block) {
+
+	if (block < 0) {
+		printk(KERN_WARNING "EFS: bmap(): block < 0\n");
+		return 0;
+	}
+
+	/* are we about to read past the end of a file ? */
+	if (!(block < inode->i_blocks)) {
+#ifdef DEBUG
+		/*
+		 * i have no idea why this happens as often as it does
+		 */
+		printk(KERN_WARNING "EFS: bmap(): block %d >= %ld (filesize %ld)\n",
+			block,
+			inode->i_blocks,
+			inode->i_size);
+#endif
+		return 0;
+	}
+
+	return efs_map_block(inode, block);
+}
diff --git a/fs/efs/inode.c b/fs/efs/inode.c
new file mode 100644
index 00000000000000..ba03990abe4619
--- /dev/null
+++ b/fs/efs/inode.c
@@ -0,0 +1,307 @@
+/*
+ * inode.c
+ *
+ * Copyright (c) 1999 Al Smith
+ *
+ * Portions derived from work (c) 1995,1996 Christian Vogelgsang,
+ *              and from work (c) 1998 Mike Shaver.
+ */
+
+#include <linux/efs_fs.h>
+#include <linux/efs_fs_sb.h>
+#include <linux/module.h>
+
+
+extern int efs_get_block(struct inode *, long, struct buffer_head *, int);
+static int efs_readpage(struct file *file, struct page *page)
+{
+	return block_read_full_page(page,efs_get_block);
+}
+static int _efs_bmap(struct address_space *mapping, long block)
+{
+	return generic_block_bmap(mapping,block,efs_get_block);
+}
+struct address_space_operations efs_aops = {
+	readpage: efs_readpage,
+	sync_page: block_sync_page,
+	bmap: _efs_bmap
+};
+
+static inline void extent_copy(efs_extent *src, efs_extent *dst) {
+	/*
+	 * this is slightly evil. it doesn't just copy
+	 * efs_extent from src to dst, it also mangles
+	 * the bits so that dst ends up in cpu byte-order.
+	 */
+
+	dst->cooked.ex_magic  =  (unsigned int) src->raw[0];
+	dst->cooked.ex_bn     = ((unsigned int) src->raw[1] << 16) |
+				((unsigned int) src->raw[2] <<  8) |
+				((unsigned int) src->raw[3] <<  0);
+	dst->cooked.ex_length =  (unsigned int) src->raw[4];
+	dst->cooked.ex_offset = ((unsigned int) src->raw[5] << 16) |
+				((unsigned int) src->raw[6] <<  8) |
+				((unsigned int) src->raw[7] <<  0);
+	return;
+}
+
+void efs_read_inode(struct inode *inode) {
+	int i, inode_index;
+	dev_t device;
+	struct buffer_head *bh;
+	struct efs_sb_info    *sb = SUPER_INFO(inode->i_sb);
+	struct efs_inode_info *in = INODE_INFO(inode);
+	efs_block_t block, offset;
+	struct efs_dinode *efs_inode;
+  
+	/*
+	** EFS layout:
+	**
+	** |   cylinder group    |   cylinder group    |   cylinder group ..etc
+	** |inodes|data          |inodes|data          |inodes|data       ..etc
+	**
+	** work out the inode block index, (considering initially that the
+	** inodes are stored as consecutive blocks). then work out the block
+	** number of that inode given the above layout, and finally the
+	** offset of the inode within that block.
+	*/
+
+	inode_index = inode->i_ino /
+		(EFS_BLOCKSIZE / sizeof(struct efs_dinode));
+
+	block = sb->fs_start + sb->first_block + 
+		(sb->group_size * (inode_index / sb->inode_blocks)) +
+		(inode_index % sb->inode_blocks);
+
+	offset = (inode->i_ino %
+			(EFS_BLOCKSIZE / sizeof(struct efs_dinode))) *
+		sizeof(struct efs_dinode);
+
+	bh = sb_bread(inode->i_sb, block);
+	if (!bh) {
+		printk(KERN_WARNING "EFS: bread() failed at block %d\n", block);
+		goto read_inode_error;
+	}
+
+	efs_inode = (struct efs_dinode *) (bh->b_data + offset);
+    
+	inode->i_mode  = be16_to_cpu(efs_inode->di_mode);
+	inode->i_nlink = be16_to_cpu(efs_inode->di_nlink);
+	inode->i_uid   = (uid_t)be16_to_cpu(efs_inode->di_uid);
+	inode->i_gid   = (gid_t)be16_to_cpu(efs_inode->di_gid);
+	inode->i_size  = be32_to_cpu(efs_inode->di_size);
+	inode->i_atime = be32_to_cpu(efs_inode->di_atime);
+	inode->i_mtime = be32_to_cpu(efs_inode->di_mtime);
+	inode->i_ctime = be32_to_cpu(efs_inode->di_ctime);
+
+	/* this is the number of blocks in the file */
+	if (inode->i_size == 0) {
+		inode->i_blocks = 0;
+	} else {
+		inode->i_blocks = ((inode->i_size - 1) >> EFS_BLOCKSIZE_BITS) + 1;
+	}
+
+	/*
+	 * BUG: irix dev_t is 32-bits. linux dev_t is only 16-bits.
+	 *
+	 * apparently linux will change to 32-bit dev_t sometime during
+	 * linux 2.3.
+	 *
+	 * as is, this code maps devices that can't be represented in
+	 * 16-bits (ie major > 255 or minor > 255) to major = minor = 255.
+	 *
+	 * during 2.3 when 32-bit dev_t become available, we should test
+	 * to see whether odev contains 65535. if this is the case then we
+	 * should then do device = be32_to_cpu(efs_inode->di_u.di_dev.ndev).
+	 */
+    	device = be16_to_cpu(efs_inode->di_u.di_dev.odev);
+
+	/* get the number of extents for this object */
+	in->numextents = be16_to_cpu(efs_inode->di_numextents);
+	in->lastextent = 0;
+
+	/* copy the extents contained within the inode to memory */
+	for(i = 0; i < EFS_DIRECTEXTENTS; i++) {
+		extent_copy(&(efs_inode->di_u.di_extents[i]), &(in->extents[i]));
+		if (i < in->numextents && in->extents[i].cooked.ex_magic != 0) {
+			printk(KERN_WARNING "EFS: extent %d has bad magic number in inode %lu\n", i, inode->i_ino);
+			brelse(bh);
+			goto read_inode_error;
+		}
+	}
+
+	brelse(bh);
+   
+#ifdef DEBUG
+	printk(KERN_DEBUG "EFS: read_inode(): inode %lu, extents %d, mode %o\n",
+		inode->i_ino, in->numextents, inode->i_mode);
+#endif
+
+	switch (inode->i_mode & S_IFMT) {
+		case S_IFDIR: 
+			inode->i_op = &efs_dir_inode_operations; 
+			inode->i_fop = &efs_dir_operations; 
+			break;
+		case S_IFREG:
+			inode->i_fop = &generic_ro_fops;
+			inode->i_data.a_ops = &efs_aops;
+			break;
+		case S_IFLNK:
+			inode->i_op = &page_symlink_inode_operations;
+			inode->i_data.a_ops = &efs_symlink_aops;
+			break;
+		case S_IFCHR:
+		case S_IFBLK:
+		case S_IFIFO:
+			init_special_inode(inode, inode->i_mode, device);
+			break;
+		default:
+			printk(KERN_WARNING "EFS: unsupported inode mode %o\n", inode->i_mode);
+			goto read_inode_error;
+			break;
+	}
+
+	return;
+        
+read_inode_error:
+	printk(KERN_WARNING "EFS: failed to read inode %lu\n", inode->i_ino);
+	make_bad_inode(inode);
+
+	return;
+}
+
+static inline efs_block_t
+efs_extent_check(efs_extent *ptr, efs_block_t block, struct efs_sb_info *sb) {
+	efs_block_t start;
+	efs_block_t length;
+	efs_block_t offset;
+
+	/*
+	 * given an extent and a logical block within a file,
+	 * can this block be found within this extent ?
+	 */
+	start  = ptr->cooked.ex_bn;
+	length = ptr->cooked.ex_length;
+	offset = ptr->cooked.ex_offset;
+
+	if ((block >= offset) && (block < offset+length)) {
+		return(sb->fs_start + start + block - offset);
+	} else {
+		return 0;
+	}
+}
+
+efs_block_t efs_map_block(struct inode *inode, efs_block_t block) {
+	struct efs_sb_info    *sb = SUPER_INFO(inode->i_sb);
+	struct efs_inode_info *in = INODE_INFO(inode);
+	struct buffer_head    *bh = NULL;
+
+	int cur, last, first = 1;
+	int ibase, ioffset, dirext, direxts, indext, indexts;
+	efs_block_t iblock, result = 0, lastblock = 0;
+	efs_extent ext, *exts;
+
+	last = in->lastextent;
+
+	if (in->numextents <= EFS_DIRECTEXTENTS) {
+		/* first check the last extent we returned */
+		if ((result = efs_extent_check(&in->extents[last], block, sb)))
+			return result;
+    
+		/* if we only have one extent then nothing can be found */
+		if (in->numextents == 1) {
+			printk(KERN_ERR "EFS: map_block() failed to map (1 extent)\n");
+			return 0;
+		}
+
+		direxts = in->numextents;
+
+		/*
+		 * check the stored extents in the inode
+		 * start with next extent and check forwards
+		 */
+		for(dirext = 1; dirext < direxts; dirext++) {
+			cur = (last + dirext) % in->numextents;
+			if ((result = efs_extent_check(&in->extents[cur], block, sb))) {
+				in->lastextent = cur;
+				return result;
+			}
+		}
+
+		printk(KERN_ERR "EFS: map_block() failed to map block %u (dir)\n", block);
+		return 0;
+	}
+
+#ifdef DEBUG
+	printk(KERN_DEBUG "EFS: map_block(): indirect search for logical block %u\n", block);
+#endif
+	direxts = in->extents[0].cooked.ex_offset;
+	indexts = in->numextents;
+
+	for(indext = 0; indext < indexts; indext++) {
+		cur = (last + indext) % indexts;
+
+		/*
+		 * work out which direct extent contains `cur'.
+		 *
+		 * also compute ibase: i.e. the number of the first
+		 * indirect extent contained within direct extent `cur'.
+		 *
+		 */
+		ibase = 0;
+		for(dirext = 0; cur < ibase && dirext < direxts; dirext++) {
+			ibase += in->extents[dirext].cooked.ex_length *
+				(EFS_BLOCKSIZE / sizeof(efs_extent));
+		}
+
+		if (dirext == direxts) {
+			/* should never happen */
+			printk(KERN_ERR "EFS: couldn't find direct extent for indirect extent %d (block %u)\n", cur, block);
+			if (bh) brelse(bh);
+			return 0;
+		}
+		
+		/* work out block number and offset of this indirect extent */
+		iblock = sb->fs_start + in->extents[dirext].cooked.ex_bn +
+			(cur - ibase) /
+			(EFS_BLOCKSIZE / sizeof(efs_extent));
+		ioffset = (cur - ibase) %
+			(EFS_BLOCKSIZE / sizeof(efs_extent));
+
+		if (first || lastblock != iblock) {
+			if (bh) brelse(bh);
+
+			bh = sb_bread(inode->i_sb, iblock);
+			if (!bh) {
+				printk(KERN_ERR "EFS: bread() failed at block %d\n", iblock);
+				return 0;
+			}
+#ifdef DEBUG
+			printk(KERN_DEBUG "EFS: map_block(): read indirect extent block %d\n", iblock);
+#endif
+			first = 0;
+			lastblock = iblock;
+		}
+
+		exts = (efs_extent *) bh->b_data;
+
+		extent_copy(&(exts[ioffset]), &ext);
+
+		if (ext.cooked.ex_magic != 0) {
+			printk(KERN_ERR "EFS: extent %d has bad magic number in block %d\n", cur, iblock);
+			if (bh) brelse(bh);
+			return 0;
+		}
+
+		if ((result = efs_extent_check(&ext, block, sb))) {
+			if (bh) brelse(bh);
+			in->lastextent = cur;
+			return result;
+		}
+	}
+	if (bh) brelse(bh);
+	printk(KERN_ERR "EFS: map_block() failed to map block %u (indir)\n", block);
+	return 0;
+}  
+
+MODULE_LICENSE("GPL");
diff --git a/fs/efs/namei.c b/fs/efs/namei.c
new file mode 100644
index 00000000000000..cc06bc8cbab025
--- /dev/null
+++ b/fs/efs/namei.c
@@ -0,0 +1,76 @@
+/*
+ * namei.c
+ *
+ * Copyright (c) 1999 Al Smith
+ *
+ * Portions derived from work (c) 1995,1996 Christian Vogelgsang.
+ */
+
+#include <linux/string.h>
+#include <linux/efs_fs.h>
+
+static efs_ino_t efs_find_entry(struct inode *inode, const char *name, int len) {
+	struct buffer_head *bh;
+
+	int			slot, namelen;
+	char			*nameptr;
+	struct efs_dir		*dirblock;
+	struct efs_dentry	*dirslot;
+	efs_ino_t		inodenum;
+	efs_block_t		block;
+ 
+	if (inode->i_size & (EFS_DIRBSIZE-1))
+		printk(KERN_WARNING "EFS: WARNING: find_entry(): directory size not a multiple of EFS_DIRBSIZE\n");
+
+	for(block = 0; block < inode->i_blocks; block++) {
+
+		bh = sb_bread(inode->i_sb, efs_bmap(inode, block));
+		if (!bh) {
+			printk(KERN_ERR "EFS: find_entry(): failed to read dir block %d\n", block);
+			return 0;
+		}
+    
+		dirblock = (struct efs_dir *) bh->b_data;
+
+		if (be16_to_cpu(dirblock->magic) != EFS_DIRBLK_MAGIC) {
+			printk(KERN_ERR "EFS: find_entry(): invalid directory block\n");
+			brelse(bh);
+			return(0);
+		}
+
+		for(slot = 0; slot < dirblock->slots; slot++) {
+			dirslot  = (struct efs_dentry *) (((char *) bh->b_data) + EFS_SLOTAT(dirblock, slot));
+
+			namelen  = dirslot->namelen;
+			nameptr  = dirslot->name;
+
+			if ((namelen == len) && (!memcmp(name, nameptr, len))) {
+				inodenum = be32_to_cpu(dirslot->inode);
+				brelse(bh);
+				return(inodenum);
+			}
+		}
+		brelse(bh);
+	}
+	return(0);
+}
+
+struct dentry *efs_lookup(struct inode *dir, struct dentry *dentry) {
+	efs_ino_t inodenum;
+	struct inode * inode;
+
+	if (!dir || !S_ISDIR(dir->i_mode))
+		return ERR_PTR(-ENOENT);
+
+	inode = NULL;
+
+	inodenum = efs_find_entry(dir, dentry->d_name.name, dentry->d_name.len);
+	if (inodenum) {
+		if (!(inode = iget(dir->i_sb, inodenum)))
+			return ERR_PTR(-EACCES);
+	}
+
+	d_add(dentry, inode);
+	return NULL;
+}
+
diff --git a/fs/efs/super.c b/fs/efs/super.c
new file mode 100644
index 00000000000000..f82d8c21ef5baf
--- /dev/null
+++ b/fs/efs/super.c
@@ -0,0 +1,227 @@
+/*
+ * super.c
+ *
+ * Copyright (c) 1999 Al Smith
+ *
+ * Portions derived from work (c) 1995,1996 Christian Vogelgsang.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/locks.h>
+#include <linux/efs_fs.h>
+#include <linux/efs_vh.h>
+#include <linux/efs_fs_sb.h>
+
+static DECLARE_FSTYPE_DEV(efs_fs_type, "efs", efs_read_super);
+
+static struct super_operations efs_superblock_operations = {
+	read_inode:	efs_read_inode,
+	statfs:		efs_statfs,
+};
+
+static int __init init_efs_fs(void) {
+	printk("EFS: "EFS_VERSION" - http://aeschi.ch.eu.org/efs/\n");
+	return register_filesystem(&efs_fs_type);
+}
+
+static void __exit exit_efs_fs(void) {
+	unregister_filesystem(&efs_fs_type);
+}
+
+EXPORT_NO_SYMBOLS;
+
+module_init(init_efs_fs)
+module_exit(exit_efs_fs)
+
+static efs_block_t efs_validate_vh(struct volume_header *vh) {
+	int		i;
+	unsigned int	cs, csum, *ui;
+	efs_block_t	sblock = 0; /* shuts up gcc */
+	struct pt_types	*pt_entry;
+	int		pt_type, slice = -1;
+
+	if (be32_to_cpu(vh->vh_magic) != VHMAGIC) {
+		/*
+		 * assume that we're dealing with a partition and allow
+		 * read_super() to try and detect a valid superblock
+		 * on the next block.
+		 */
+		return 0;
+	}
+
+	ui = ((unsigned int *) (vh + 1)) - 1;
+	for(csum = 0; ui >= ((unsigned int *) vh);) {
+		cs = *ui--;
+		csum += be32_to_cpu(cs);
+	}
+	if (csum) {
+		printk(KERN_INFO "EFS: SGI disklabel: checksum bad, label corrupted\n");
+		return 0;
+	}
+
+#ifdef DEBUG
+	printk(KERN_DEBUG "EFS: bf: \"%16s\"\n", vh->vh_bootfile);
+
+	for(i = 0; i < NVDIR; i++) {
+		int	j;
+		char	name[VDNAMESIZE+1];
+
+		for(j = 0; j < VDNAMESIZE; j++) {
+			name[j] = vh->vh_vd[i].vd_name[j];
+		}
+		name[j] = (char) 0;
+
+		if (name[0]) {
+			printk(KERN_DEBUG "EFS: vh: %8s block: 0x%08x size: 0x%08x\n",
+				name,
+				(int) be32_to_cpu(vh->vh_vd[i].vd_lbn),
+				(int) be32_to_cpu(vh->vh_vd[i].vd_nbytes));
+		}
+	}
+#endif
+
+	for(i = 0; i < NPARTAB; i++) {
+		pt_type = (int) be32_to_cpu(vh->vh_pt[i].pt_type);
+		for(pt_entry = sgi_pt_types; pt_entry->pt_name; pt_entry++) {
+			if (pt_type == pt_entry->pt_type) break;
+		}
+#ifdef DEBUG
+		if (be32_to_cpu(vh->vh_pt[i].pt_nblks)) {
+			printk(KERN_DEBUG "EFS: pt %2d: start: %08d size: %08d type: 0x%02x (%s)\n",
+				i,
+				(int) be32_to_cpu(vh->vh_pt[i].pt_firstlbn),
+				(int) be32_to_cpu(vh->vh_pt[i].pt_nblks),
+				pt_type,
+				(pt_entry->pt_name) ? pt_entry->pt_name : "unknown");
+		}
+#endif
+		if (IS_EFS(pt_type)) {
+			sblock = be32_to_cpu(vh->vh_pt[i].pt_firstlbn);
+			slice = i;
+		}
+	}
+
+	if (slice == -1) {
+		printk(KERN_NOTICE "EFS: partition table contained no EFS partitions\n");
+#ifdef DEBUG
+	} else {
+		printk(KERN_INFO "EFS: using slice %d (type %s, offset 0x%x)\n",
+			slice,
+			(pt_entry->pt_name) ? pt_entry->pt_name : "unknown",
+			sblock);
+#endif
+	}
+	return(sblock);
+}
+
+static int efs_validate_super(struct efs_sb_info *sb, struct efs_super *super) {
+
+	if (!IS_EFS_MAGIC(be32_to_cpu(super->fs_magic))) return -1;
+
+	sb->fs_magic     = be32_to_cpu(super->fs_magic);
+	sb->total_blocks = be32_to_cpu(super->fs_size);
+	sb->first_block  = be32_to_cpu(super->fs_firstcg);
+	sb->group_size   = be32_to_cpu(super->fs_cgfsize);
+	sb->data_free    = be32_to_cpu(super->fs_tfree);
+	sb->inode_free   = be32_to_cpu(super->fs_tinode);
+	sb->inode_blocks = be16_to_cpu(super->fs_cgisize);
+	sb->total_groups = be16_to_cpu(super->fs_ncg);
+    
+	return 0;    
+}
+
+struct super_block *efs_read_super(struct super_block *s, void *d, int silent) {
+	kdev_t dev = s->s_dev;
+	struct efs_sb_info *sb;
+	struct buffer_head *bh;
+
+ 	sb = SUPER_INFO(s);
+ 
+	s->s_magic		= EFS_SUPER_MAGIC;
+	s->s_blocksize		= EFS_BLOCKSIZE;
+	s->s_blocksize_bits	= EFS_BLOCKSIZE_BITS;
+	
+	if( set_blocksize(dev, EFS_BLOCKSIZE) < 0)
+	{
+		printk(KERN_ERR "EFS: device does not support %d byte blocks\n",
+			EFS_BLOCKSIZE);
+		goto out_no_fs_ul;
+	}
+  
+	/* read the vh (volume header) block */
+	bh = sb_bread(s, 0);
+
+	if (!bh) {
+		printk(KERN_ERR "EFS: cannot read volume header\n");
+		goto out_no_fs_ul;
+	}
+
+	/*
+	 * if this returns zero then we didn't find any partition table.
+	 * this isn't (yet) an error - just assume for the moment that
+	 * the device is valid and go on to search for a superblock.
+	 */
+	sb->fs_start = efs_validate_vh((struct volume_header *) bh->b_data);
+	brelse(bh);
+
+	if (sb->fs_start == -1) {
+		goto out_no_fs_ul;
+	}
+
+	bh = sb_bread(s, sb->fs_start + EFS_SUPER);
+	if (!bh) {
+		printk(KERN_ERR "EFS: cannot read superblock\n");
+		goto out_no_fs_ul;
+	}
+		
+	if (efs_validate_super(sb, (struct efs_super *) bh->b_data)) {
+#ifdef DEBUG
+		printk(KERN_WARNING "EFS: invalid superblock at block %u\n", sb->fs_start + EFS_SUPER);
+#endif
+		brelse(bh);
+		goto out_no_fs_ul;
+	}
+	brelse(bh);
+
+	if (!(s->s_flags & MS_RDONLY)) {
+#ifdef DEBUG
+		printk(KERN_INFO "EFS: forcing read-only mode\n");
+#endif
+		s->s_flags |= MS_RDONLY;
+	}
+	s->s_op   = &efs_superblock_operations;
+	s->s_root = d_alloc_root(iget(s, EFS_ROOTINODE));
+ 
+	if (!(s->s_root)) {
+		printk(KERN_ERR "EFS: get root inode failed\n");
+		goto out_no_fs;
+	}
+
+	return(s);
+
+out_no_fs_ul:
+out_no_fs:
+	return(NULL);
+}
+
+int efs_statfs(struct super_block *s, struct statfs *buf) {
+	struct efs_sb_info *sb = SUPER_INFO(s);
+
+	buf->f_type    = EFS_SUPER_MAGIC;	/* efs magic number */
+	buf->f_bsize   = EFS_BLOCKSIZE;		/* blocksize */
+	buf->f_blocks  = sb->total_groups *	/* total data blocks */
+			(sb->group_size - sb->inode_blocks);
+	buf->f_bfree   = sb->data_free;		/* free data blocks */
+	buf->f_bavail  = sb->data_free;		/* free blocks for non-root */
+	buf->f_files   = sb->total_groups *	/* total inodes */
+			sb->inode_blocks *
+			(EFS_BLOCKSIZE / sizeof(struct efs_dinode));
+	buf->f_ffree   = sb->inode_free;	/* free inodes */
+	buf->f_fsid.val[0] = (sb->fs_magic >> 16) & 0xffff; /* fs ID */
+	buf->f_fsid.val[1] =  sb->fs_magic        & 0xffff; /* fs ID */
+	buf->f_namelen = EFS_MAXNAMELEN;	/* max filename length */
+
+	return 0;
+}
+
diff --git a/fs/efs/symlink.c b/fs/efs/symlink.c
new file mode 100644
index 00000000000000..5dd10f50edb04e
--- /dev/null
+++ b/fs/efs/symlink.c
@@ -0,0 +1,57 @@
+/*
+ * symlink.c
+ *
+ * Copyright (c) 1999 Al Smith
+ *
+ * Portions derived from work (c) 1995,1996 Christian Vogelgsang.
+ */
+
+#include <linux/string.h>
+#include <linux/efs_fs.h>
+#include <linux/pagemap.h>
+#include <linux/smp_lock.h>
+
+static int efs_symlink_readpage(struct file *file, struct page *page)
+{
+	char *link = kmap(page);
+	struct buffer_head * bh;
+	struct inode * inode = page->mapping->host;
+	efs_block_t size = inode->i_size;
+	int err;
+  
+	err = -ENAMETOOLONG;
+	if (size > 2 * EFS_BLOCKSIZE)
+		goto fail;
+  
+	lock_kernel();
+	/* read first 512 bytes of link target */
+	err = -EIO;
+	bh = sb_bread(inode->i_sb, efs_bmap(inode, 0));
+	if (!bh)
+		goto fail;
+	memcpy(link, bh->b_data, (size > EFS_BLOCKSIZE) ? EFS_BLOCKSIZE : size);
+	brelse(bh);
+	if (size > EFS_BLOCKSIZE) {
+		bh = sb_bread(inode->i_sb, efs_bmap(inode, 1));
+		if (!bh)
+			goto fail;
+		memcpy(link + EFS_BLOCKSIZE, bh->b_data, size - EFS_BLOCKSIZE);
+		brelse(bh);
+	}
+	link[size] = '\0';
+	unlock_kernel();
+	SetPageUptodate(page);
+	kunmap(page);
+	UnlockPage(page);
+	return 0;
+fail:
+	unlock_kernel();
+	SetPageError(page);
+	kunmap(page);
+	UnlockPage(page);
+	return err;
+}
+
+struct address_space_operations efs_symlink_aops = {
+	readpage:	efs_symlink_readpage
+};
diff --git a/fs/exec.c b/fs/exec.c
new file mode 100644
index 00000000000000..f196e7e69965de
--- /dev/null
+++ b/fs/exec.c
@@ -0,0 +1,1178 @@
+/*
+ *  linux/fs/exec.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ */
+
+/*
+ * #!-checking implemented by tytso.
+ */
+/*
+ * Demand-loading implemented 01.12.91 - no need to read anything but
+ * the header into memory. The inode of the executable is put into
+ * "current->executable", and page faults do the actual loading. Clean.
+ *
+ * Once more I can proudly say that linux stood up to being changed: it
+ * was less than 2 hours work to get demand-loading completely implemented.
+ *
+ * Demand loading changed July 1993 by Eric Youngdale.   Use mmap instead,
+ * current->executable is only used by the procfs.  This allows a dispatch
+ * table to check for several different types  of binary formats.  We keep
+ * trying until we recognize the file or we run out of supported binary
+ * formats. 
+ */
+
+#include <linux/config.h>
+#include <linux/slab.h>
+#include <linux/file.h>
+#include <linux/mman.h>
+#include <linux/a.out.h>
+#include <linux/stat.h>
+#include <linux/fcntl.h>
+#include <linux/smp_lock.h>
+#include <linux/init.h>
+#include <linux/pagemap.h>
+#include <linux/highmem.h>
+#include <linux/spinlock.h>
+#include <linux/personality.h>
+#include <linux/swap.h>
+#include <linux/utsname.h>
+#define __NO_VERSION__
+#include <linux/module.h>
+
+#include <asm/uaccess.h>
+#include <asm/pgalloc.h>
+#include <asm/mmu_context.h>
+
+#ifdef CONFIG_KMOD
+#include <linux/kmod.h>
+#endif
+
+int core_uses_pid;
+char core_pattern[65] = "core";
+int core_setuid_ok = 0;
+/* The maximal length of core_pattern is also specified in sysctl.c */ 
+
+static struct linux_binfmt *formats;
+static rwlock_t binfmt_lock = RW_LOCK_UNLOCKED;
+
+int register_binfmt(struct linux_binfmt * fmt)
+{
+	struct linux_binfmt ** tmp = &formats;
+
+	if (!fmt)
+		return -EINVAL;
+	if (fmt->next)
+		return -EBUSY;
+	write_lock(&binfmt_lock);
+	while (*tmp) {
+		if (fmt == *tmp) {
+			write_unlock(&binfmt_lock);
+			return -EBUSY;
+		}
+		tmp = &(*tmp)->next;
+	}
+	fmt->next = formats;
+	formats = fmt;
+	write_unlock(&binfmt_lock);
+	return 0;	
+}
+
+int unregister_binfmt(struct linux_binfmt * fmt)
+{
+	struct linux_binfmt ** tmp = &formats;
+
+	write_lock(&binfmt_lock);
+	while (*tmp) {
+		if (fmt == *tmp) {
+			*tmp = fmt->next;
+			write_unlock(&binfmt_lock);
+			return 0;
+		}
+		tmp = &(*tmp)->next;
+	}
+	write_unlock(&binfmt_lock);
+	return -EINVAL;
+}
+
+static inline void put_binfmt(struct linux_binfmt * fmt)
+{
+	if (fmt->module)
+		__MOD_DEC_USE_COUNT(fmt->module);
+}
+
+/*
+ * Note that a shared library must be both readable and executable due to
+ * security reasons.
+ *
+ * Also note that we take the address to load from from the file itself.
+ */
+asmlinkage long sys_uselib(const char * library)
+{
+	struct file * file;
+	struct nameidata nd;
+	int error;
+
+	error = user_path_walk(library, &nd);
+	if (error)
+		goto out;
+
+	error = -EINVAL;
+	if (!S_ISREG(nd.dentry->d_inode->i_mode))
+		goto exit;
+
+	error = permission(nd.dentry->d_inode, MAY_READ | MAY_EXEC);
+	if (error)
+		goto exit;
+
+	file = dentry_open(nd.dentry, nd.mnt, O_RDONLY);
+	error = PTR_ERR(file);
+	if (IS_ERR(file))
+		goto out;
+
+	error = -ENOEXEC;
+	if(file->f_op && file->f_op->read) {
+		struct linux_binfmt * fmt;
+
+		read_lock(&binfmt_lock);
+		for (fmt = formats ; fmt ; fmt = fmt->next) {
+			if (!fmt->load_shlib)
+				continue;
+			if (!try_inc_mod_count(fmt->module))
+				continue;
+			read_unlock(&binfmt_lock);
+			error = fmt->load_shlib(file);
+			read_lock(&binfmt_lock);
+			put_binfmt(fmt);
+			if (error != -ENOEXEC)
+				break;
+		}
+		read_unlock(&binfmt_lock);
+	}
+	fput(file);
+out:
+  	return error;
+exit:
+	path_release(&nd);
+	goto out;
+}
+
+/*
+ * count() counts the number of arguments/envelopes
+ */
+static int count(char ** argv, int max)
+{
+	int i = 0;
+
+	if (argv != NULL) {
+		for (;;) {
+			char * p;
+
+			if (get_user(p, argv))
+				return -EFAULT;
+			if (!p)
+				break;
+			argv++;
+			if(++i > max)
+				return -E2BIG;
+		}
+	}
+	return i;
+}
+
+/*
+ * 'copy_strings()' copies argument/envelope strings from user
+ * memory to free pages in kernel mem. These are in a format ready
+ * to be put directly into the top of new user memory.
+ */
+int copy_strings(int argc,char ** argv, struct linux_binprm *bprm) 
+{
+	struct page *kmapped_page = NULL;
+	char *kaddr = NULL;
+	int ret;
+
+	while (argc-- > 0) {
+		char *str;
+		int len;
+		unsigned long pos;
+
+		if (get_user(str, argv+argc) ||
+				!(len = strnlen_user(str, bprm->p))) {
+			ret = -EFAULT;
+			goto out;
+		}
+
+		if (bprm->p < len)  {
+			ret = -E2BIG;
+			goto out;
+		}
+
+		bprm->p -= len;
+		/* XXX: add architecture specific overflow check here. */ 
+		pos = bprm->p;
+
+		while (len > 0) {
+			int i, new, err;
+			int offset, bytes_to_copy;
+			struct page *page;
+
+			offset = pos % PAGE_SIZE;
+			i = pos/PAGE_SIZE;
+			page = bprm->page[i];
+			new = 0;
+			if (!page) {
+				page = alloc_page(GFP_HIGHUSER);
+				bprm->page[i] = page;
+				if (!page) {
+					ret = -ENOMEM;
+					goto out;
+				}
+				new = 1;
+			}
+
+			if (page != kmapped_page) {
+				if (kmapped_page)
+					kunmap(kmapped_page);
+				kmapped_page = page;
+				kaddr = kmap(kmapped_page);
+			}
+			if (new && offset)
+				memset(kaddr, 0, offset);
+			bytes_to_copy = PAGE_SIZE - offset;
+			if (bytes_to_copy > len) {
+				bytes_to_copy = len;
+				if (new)
+					memset(kaddr+offset+len, 0,
+						PAGE_SIZE-offset-len);
+			}
+			err = copy_from_user(kaddr+offset, str, bytes_to_copy);
+			if (err) {
+				ret = -EFAULT;
+				goto out;
+			}
+
+			pos += bytes_to_copy;
+			str += bytes_to_copy;
+			len -= bytes_to_copy;
+		}
+	}
+	ret = 0;
+out:
+	if (kmapped_page)
+		kunmap(kmapped_page);
+	return ret;
+}
+
+/*
+ * Like copy_strings, but get argv and its values from kernel memory.
+ */
+int copy_strings_kernel(int argc,char ** argv, struct linux_binprm *bprm)
+{
+	int r;
+	mm_segment_t oldfs = get_fs();
+	set_fs(KERNEL_DS); 
+	r = copy_strings(argc, argv, bprm);
+	set_fs(oldfs);
+	return r; 
+}
+
+/*
+ * This routine is used to map in a page into an address space: needed by
+ * execve() for the initial stack and environment pages.
+ *
+ * tsk->mmap_sem is held for writing.
+ */
+void put_dirty_page(struct task_struct * tsk, struct page *page, unsigned long address)
+{
+	pgd_t * pgd;
+	pmd_t * pmd;
+	pte_t * pte;
+	struct vm_area_struct *vma; 
+	pgprot_t prot = PAGE_COPY; 
+
+	if (page_count(page) != 1)
+		printk(KERN_ERR "mem_map disagrees with %p at %08lx\n", page, address);
+	pgd = pgd_offset(tsk->mm, address);
+
+	spin_lock(&tsk->mm->page_table_lock);
+	pmd = pmd_alloc(tsk->mm, pgd, address);
+	if (!pmd)
+		goto out;
+	pte = pte_alloc(tsk->mm, pmd, address);
+	if (!pte)
+		goto out;
+	if (!pte_none(*pte))
+		goto out;
+	lru_cache_add(page);
+	flush_dcache_page(page);
+	flush_page_to_ram(page);
+	/* lookup is cheap because there is only a single entry in the list */
+	vma = find_vma(tsk->mm, address); 
+	if (vma) 
+		prot = vma->vm_page_prot;
+	set_pte(pte, pte_mkdirty(pte_mkwrite(mk_pte(page, prot))));
+	tsk->mm->rss++;
+	spin_unlock(&tsk->mm->page_table_lock);
+
+	/* no need for flush_tlb */
+	return;
+out:
+	spin_unlock(&tsk->mm->page_table_lock);
+	__free_page(page);
+	force_sig(SIGKILL, tsk);
+	return;
+}
+
+int setup_arg_pages(struct linux_binprm *bprm)
+{
+	unsigned long stack_base;
+	struct vm_area_struct *mpnt;
+	int i, ret;
+
+	stack_base = STACK_TOP - MAX_ARG_PAGES*PAGE_SIZE;
+
+	bprm->p += stack_base;
+	if (bprm->loader)
+		bprm->loader += stack_base;
+	bprm->exec += stack_base;
+
+	mpnt = kmem_cache_alloc(vm_area_cachep, SLAB_KERNEL);
+	if (!mpnt) 
+		return -ENOMEM; 
+	
+	down_write(&current->mm->mmap_sem);
+	{
+		mpnt->vm_mm = current->mm;
+		mpnt->vm_start = PAGE_MASK & (unsigned long) bprm->p;
+		mpnt->vm_end = STACK_TOP;
+		mpnt->vm_flags = VM_STACK_FLAGS;
+		mpnt->vm_page_prot = protection_map[VM_STACK_FLAGS & 0x7];
+		mpnt->vm_ops = NULL;
+		mpnt->vm_pgoff = 0;
+		mpnt->vm_file = NULL;
+		mpnt->vm_private_data = (void *) 0;
+		if ((ret = insert_vm_struct(current->mm, mpnt))) {
+			up_write(&current->mm->mmap_sem);
+			kmem_cache_free(vm_area_cachep, mpnt);
+			return ret;
+		}
+		current->mm->total_vm = (mpnt->vm_end - mpnt->vm_start) >> PAGE_SHIFT;
+	} 
+
+	for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
+		struct page *page = bprm->page[i];
+		if (page) {
+			bprm->page[i] = NULL;
+			put_dirty_page(current,page,stack_base);
+		}
+		stack_base += PAGE_SIZE;
+	}
+	up_write(&current->mm->mmap_sem);
+	
+	return 0;
+}
+
+struct file *open_exec(const char *name)
+{
+	struct nameidata nd;
+	struct inode *inode;
+	struct file *file;
+	int err = 0;
+
+	err = path_lookup(name, LOOKUP_FOLLOW|LOOKUP_POSITIVE, &nd);
+	file = ERR_PTR(err);
+	if (!err) {
+		inode = nd.dentry->d_inode;
+		file = ERR_PTR(-EACCES);
+		if (!(nd.mnt->mnt_flags & MNT_NOEXEC) &&
+		    S_ISREG(inode->i_mode)) {
+			int err = permission(inode, MAY_EXEC);
+			if (!err && !(inode->i_mode & 0111))
+				err = -EACCES;
+			file = ERR_PTR(err);
+			if (!err) {
+				file = dentry_open(nd.dentry, nd.mnt, O_RDONLY);
+				if (!IS_ERR(file)) {
+					err = deny_write_access(file);
+					if (err) {
+						fput(file);
+						file = ERR_PTR(err);
+					}
+				}
+out:
+				return file;
+			}
+		}
+		path_release(&nd);
+	}
+	goto out;
+}
+
+int kernel_read(struct file *file, unsigned long offset,
+	char * addr, unsigned long count)
+{
+	mm_segment_t old_fs;
+	loff_t pos = offset;
+	int result = -ENOSYS;
+
+	if (!file->f_op->read)
+		goto fail;
+	old_fs = get_fs();
+	set_fs(get_ds());
+	result = file->f_op->read(file, addr, count, &pos);
+	set_fs(old_fs);
+fail:
+	return result;
+}
+
+static int exec_mmap(void)
+{
+	struct mm_struct * mm, * old_mm;
+
+	old_mm = current->mm;
+
+	if (old_mm && atomic_read(&old_mm->mm_users) == 1) {
+		mm_release();
+		down_write(&old_mm->mmap_sem);
+		exit_mmap(old_mm);
+		up_write(&old_mm->mmap_sem);
+		return 0;
+	}
+
+
+	mm = mm_alloc();
+	if (mm) {
+		struct mm_struct *active_mm;
+
+		if (init_new_context(current, mm)) {
+			mmdrop(mm);
+			return -ENOMEM;
+		}
+
+		/* Add it to the list of mm's */
+		spin_lock(&mmlist_lock);
+		list_add(&mm->mmlist, &init_mm.mmlist);
+		mmlist_nr++;
+		spin_unlock(&mmlist_lock);
+
+		task_lock(current);
+		active_mm = current->active_mm;
+		current->mm = mm;
+		current->active_mm = mm;
+		task_unlock(current);
+		activate_mm(active_mm, mm);
+		mm_release();
+		if (old_mm) {
+			if (active_mm != old_mm) BUG();
+			mmput(old_mm);
+			return 0;
+		}
+		mmdrop(active_mm);
+		return 0;
+	}
+	return -ENOMEM;
+}
+
+/*
+ * This function makes sure the current process has its own signal table,
+ * so that flush_signal_handlers can later reset the handlers without
+ * disturbing other processes.  (Other processes might share the signal
+ * table via the CLONE_SIGNAL option to clone().)
+ */
+ 
+static inline int make_private_signals(void)
+{
+	struct signal_struct * newsig;
+
+	if (atomic_read(&current->sig->count) <= 1)
+		return 0;
+	newsig = kmem_cache_alloc(sigact_cachep, GFP_KERNEL);
+	if (newsig == NULL)
+		return -ENOMEM;
+	spin_lock_init(&newsig->siglock);
+	atomic_set(&newsig->count, 1);
+	memcpy(newsig->action, current->sig->action, sizeof(newsig->action));
+	spin_lock_irq(&current->sigmask_lock);
+	current->sig = newsig;
+	spin_unlock_irq(&current->sigmask_lock);
+	return 0;
+}
+	
+/*
+ * If make_private_signals() made a copy of the signal table, decrement the
+ * refcount of the original table, and free it if necessary.
+ * We don't do that in make_private_signals() so that we can back off
+ * in flush_old_exec() if an error occurs after calling make_private_signals().
+ */
+
+static inline void release_old_signals(struct signal_struct * oldsig)
+{
+	if (current->sig == oldsig)
+		return;
+	if (atomic_dec_and_test(&oldsig->count))
+		kmem_cache_free(sigact_cachep, oldsig);
+}
+
+/*
+ * These functions flushes out all traces of the currently running executable
+ * so that a new one can be started
+ */
+
+static inline void flush_old_files(struct files_struct * files)
+{
+	long j = -1;
+
+	write_lock(&files->file_lock);
+	for (;;) {
+		unsigned long set, i;
+
+		j++;
+		i = j * __NFDBITS;
+		if (i >= files->max_fds || i >= files->max_fdset)
+			break;
+		set = files->close_on_exec->fds_bits[j];
+		if (!set)
+			continue;
+		files->close_on_exec->fds_bits[j] = 0;
+		write_unlock(&files->file_lock);
+		for ( ; set ; i++,set >>= 1) {
+			if (set & 1) {
+				sys_close(i);
+			}
+		}
+		write_lock(&files->file_lock);
+
+	}
+	write_unlock(&files->file_lock);
+}
+
+/*
+ * An execve() will automatically "de-thread" the process.
+ * Note: we don't have to hold the tasklist_lock to test
+ * whether we migth need to do this. If we're not part of
+ * a thread group, there is no way we can become one
+ * dynamically. And if we are, we only need to protect the
+ * unlink - even if we race with the last other thread exit,
+ * at worst the list_del_init() might end up being a no-op.
+ */
+static inline void de_thread(struct task_struct *tsk)
+{
+	if (!list_empty(&tsk->thread_group)) {
+		write_lock_irq(&tasklist_lock);
+		list_del_init(&tsk->thread_group);
+		write_unlock_irq(&tasklist_lock);
+	}
+
+	/* Minor oddity: this might stay the same. */
+	tsk->tgid = tsk->pid;
+}
+
+void get_task_comm(char *buf, struct task_struct *tsk)
+{
+	/* buf must be at least sizeof(tsk->comm) in size */
+	task_lock(tsk);
+	memcpy(buf, tsk->comm, sizeof(tsk->comm));
+	task_unlock(tsk);
+}
+
+void set_task_comm(struct task_struct *tsk, char *buf)
+{
+	task_lock(tsk);
+	strncpy(tsk->comm, buf, sizeof(tsk->comm));
+	tsk->comm[sizeof(tsk->comm)-1]='\0';
+	task_unlock(tsk);
+}
+
+int flush_old_exec(struct linux_binprm * bprm)
+{
+	char * name;
+	int i, ch, retval;
+	struct signal_struct * oldsig;
+	struct files_struct * files;
+	char tcomm[sizeof(current->comm)];
+
+	/*
+	 * Make sure we have a private signal table
+	 */
+	oldsig = current->sig;
+	retval = make_private_signals();
+	if (retval) goto flush_failed;
+
+	/*
+	 * Make sure we have private file handles. Ask the
+	 * fork helper to do the work for us and the exit
+	 * helper to do the cleanup of the old one.
+	 */
+	 
+	files = current->files;		/* refcounted so safe to hold */
+	retval = unshare_files();
+	if(retval)
+		goto flush_failed;
+	
+	/* 
+	 * Release all of the old mmap stuff
+	 */
+	retval = exec_mmap();
+	if (retval) goto mmap_failed;
+
+	/* This is the point of no return */
+	steal_locks(files);
+	put_files_struct(files);
+	release_old_signals(oldsig);
+
+	current->sas_ss_sp = current->sas_ss_size = 0;
+
+	if (current->euid == current->uid && current->egid == current->gid) {
+		current->mm->dumpable = 1;
+		current->task_dumpable = 1;
+	}
+	name = bprm->filename;
+	for (i=0; (ch = *(name++)) != '\0';) {
+		if (ch == '/')
+			i = 0;
+		else
+			if (i < (sizeof(tcomm) - 1))
+				tcomm[i++] = ch;
+	}
+	tcomm[i] = '\0';
+	set_task_comm(current, tcomm);
+
+	flush_thread();
+
+	de_thread(current);
+
+	if (bprm->e_uid != current->euid || bprm->e_gid != current->egid || 
+	    permission(bprm->file->f_dentry->d_inode,MAY_READ))
+		current->mm->dumpable = 0;
+
+	/* An exec changes our domain. We are no longer part of the thread
+	   group */
+	   
+	current->self_exec_id++;
+			
+	flush_signal_handlers(current);
+	flush_old_files(current->files);
+
+	return 0;
+
+mmap_failed:
+	put_files_struct(current->files);
+	current->files = files;
+flush_failed:
+	spin_lock_irq(&current->sigmask_lock);
+	if (current->sig != oldsig) {
+		kmem_cache_free(sigact_cachep, current->sig);
+		current->sig = oldsig;
+	}
+	spin_unlock_irq(&current->sigmask_lock);
+	return retval;
+}
+
+/*
+ * We mustn't allow tracing of suid binaries, unless
+ * the tracer has the capability to trace anything..
+ */
+static inline int must_not_trace_exec(struct task_struct * p)
+{
+	return (p->ptrace & PT_PTRACED) && !(p->ptrace & PT_PTRACE_CAP);
+}
+
+/* 
+ * Fill the binprm structure from the inode. 
+ * Check permissions, then read the first 128 (BINPRM_BUF_SIZE) bytes
+ */
+int prepare_binprm(struct linux_binprm *bprm)
+{
+	int mode;
+	struct inode * inode = bprm->file->f_dentry->d_inode;
+
+	mode = inode->i_mode;
+	/*
+	 * Check execute perms again - if the caller has CAP_DAC_OVERRIDE,
+	 * vfs_permission lets a non-executable through
+	 */
+	if (!(mode & 0111))	/* with at least _one_ execute bit set */
+		return -EACCES;
+	if (bprm->file->f_op == NULL)
+		return -EACCES;
+
+	bprm->e_uid = current->euid;
+	bprm->e_gid = current->egid;
+
+	if(!(bprm->file->f_vfsmnt->mnt_flags & MNT_NOSUID)) {
+		/* Set-uid? */
+		if (mode & S_ISUID)
+			bprm->e_uid = inode->i_uid;
+
+		/* Set-gid? */
+		/*
+		 * If setgid is set but no group execute bit then this
+		 * is a candidate for mandatory locking, not a setgid
+		 * executable.
+		 */
+		if ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))
+			bprm->e_gid = inode->i_gid;
+	}
+
+	/* We don't have VFS support for capabilities yet */
+	cap_clear(bprm->cap_inheritable);
+	cap_clear(bprm->cap_permitted);
+	cap_clear(bprm->cap_effective);
+
+	/*  To support inheritance of root-permissions and suid-root
+         *  executables under compatibility mode, we raise all three
+         *  capability sets for the file.
+         *
+         *  If only the real uid is 0, we only raise the inheritable
+         *  and permitted sets of the executable file.
+         */
+
+	if (!issecure(SECURE_NOROOT)) {
+		if (bprm->e_uid == 0 || current->uid == 0) {
+			cap_set_full(bprm->cap_inheritable);
+			cap_set_full(bprm->cap_permitted);
+		}
+		if (bprm->e_uid == 0) 
+			cap_set_full(bprm->cap_effective);
+	}
+
+	memset(bprm->buf,0,BINPRM_BUF_SIZE);
+	return kernel_read(bprm->file,0,bprm->buf,BINPRM_BUF_SIZE);
+}
+
+/*
+ * This function is used to produce the new IDs and capabilities
+ * from the old ones and the file's capabilities.
+ *
+ * The formula used for evolving capabilities is:
+ *
+ *       pI' = pI
+ * (***) pP' = (fP & X) | (fI & pI)
+ *       pE' = pP' & fE          [NB. fE is 0 or ~0]
+ *
+ * I=Inheritable, P=Permitted, E=Effective // p=process, f=file
+ * ' indicates post-exec(), and X is the global 'cap_bset'.
+ *
+ */
+
+void compute_creds(struct linux_binprm *bprm) 
+{
+	kernel_cap_t new_permitted, working;
+	int do_unlock = 0;
+
+	new_permitted = cap_intersect(bprm->cap_permitted, cap_bset);
+	working = cap_intersect(bprm->cap_inheritable,
+				current->cap_inheritable);
+	new_permitted = cap_combine(new_permitted, working);
+
+	if (bprm->e_uid != current->uid || bprm->e_gid != current->gid ||
+	    !cap_issubset(new_permitted, current->cap_permitted)) {
+                current->mm->dumpable = 0;
+		
+		lock_kernel();
+		if (must_not_trace_exec(current)
+		    || atomic_read(&current->fs->count) > 1
+		    || atomic_read(&current->files->count) > 1
+		    || atomic_read(&current->sig->count) > 1) {
+			if(!capable(CAP_SETUID)) {
+				bprm->e_uid = current->uid;
+				bprm->e_gid = current->gid;
+			}
+			if(!capable(CAP_SETPCAP)) {
+				new_permitted = cap_intersect(new_permitted,
+							current->cap_permitted);
+			}
+		}
+		do_unlock = 1;
+	}
+
+
+	/* For init, we want to retain the capabilities set
+         * in the init_task struct. Thus we skip the usual
+         * capability rules */
+	if (current->pid != 1) {
+		current->cap_permitted = new_permitted;
+		current->cap_effective =
+			cap_intersect(new_permitted, bprm->cap_effective);
+	}
+	
+        /* AUD: Audit candidate if current->cap_effective is set */
+
+        current->suid = current->euid = current->fsuid = bprm->e_uid;
+        current->sgid = current->egid = current->fsgid = bprm->e_gid;
+
+	if(do_unlock)
+		unlock_kernel();
+	current->keep_capabilities = 0;
+}
+
+
+void remove_arg_zero(struct linux_binprm *bprm)
+{
+	if (bprm->argc) {
+		unsigned long offset;
+		char * kaddr;
+		struct page *page;
+
+		offset = bprm->p % PAGE_SIZE;
+		goto inside;
+
+		while (bprm->p++, *(kaddr+offset++)) {
+			if (offset != PAGE_SIZE)
+				continue;
+			offset = 0;
+			kunmap(page);
+inside:
+			page = bprm->page[bprm->p/PAGE_SIZE];
+			kaddr = kmap(page);
+		}
+		kunmap(page);
+		bprm->argc--;
+	}
+}
+
+/*
+ * cycle the list of binary formats handler, until one recognizes the image
+ */
+int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs)
+{
+	int try,retval=0;
+	struct linux_binfmt *fmt;
+#ifdef __alpha__
+	/* handle /sbin/loader.. */
+	{
+	    struct exec * eh = (struct exec *) bprm->buf;
+
+	    if (!bprm->loader && eh->fh.f_magic == 0x183 &&
+		(eh->fh.f_flags & 0x3000) == 0x3000)
+	    {
+		struct file * file;
+		unsigned long loader;
+
+		allow_write_access(bprm->file);
+		fput(bprm->file);
+		bprm->file = NULL;
+
+	        loader = PAGE_SIZE*MAX_ARG_PAGES-sizeof(void *);
+
+		file = open_exec("/sbin/loader");
+		retval = PTR_ERR(file);
+		if (IS_ERR(file))
+			return retval;
+
+		/* Remember if the application is TASO.  */
+		bprm->sh_bang = eh->ah.entry < 0x100000000;
+
+		bprm->file = file;
+		bprm->loader = loader;
+		retval = prepare_binprm(bprm);
+		if (retval<0)
+			return retval;
+		/* should call search_binary_handler recursively here,
+		   but it does not matter */
+	    }
+	}
+#endif
+	/* kernel module loader fixup */
+	/* so we don't try to load run modprobe in kernel space. */
+	set_fs(USER_DS);
+	for (try=0; try<2; try++) {
+		read_lock(&binfmt_lock);
+		for (fmt = formats ; fmt ; fmt = fmt->next) {
+			int (*fn)(struct linux_binprm *, struct pt_regs *) = fmt->load_binary;
+			if (!fn)
+				continue;
+			if (!try_inc_mod_count(fmt->module))
+				continue;
+			read_unlock(&binfmt_lock);
+			retval = fn(bprm, regs);
+			if (retval >= 0) {
+				put_binfmt(fmt);
+				allow_write_access(bprm->file);
+				if (bprm->file)
+					fput(bprm->file);
+				bprm->file = NULL;
+				current->did_exec = 1;
+				return retval;
+			}
+			read_lock(&binfmt_lock);
+			put_binfmt(fmt);
+			if (retval != -ENOEXEC)
+				break;
+			if (!bprm->file) {
+				read_unlock(&binfmt_lock);
+				return retval;
+			}
+		}
+		read_unlock(&binfmt_lock);
+		if (retval != -ENOEXEC) {
+			break;
+#ifdef CONFIG_KMOD
+		}else{
+#define printable(c) (((c)=='\t') || ((c)=='\n') || (0x20<=(c) && (c)<=0x7e))
+			char modname[20];
+			if (printable(bprm->buf[0]) &&
+			    printable(bprm->buf[1]) &&
+			    printable(bprm->buf[2]) &&
+			    printable(bprm->buf[3]))
+				break; /* -ENOEXEC */
+			sprintf(modname, "binfmt-%04x", *(unsigned short *)(&bprm->buf[2]));
+			request_module(modname);
+#endif
+		}
+	}
+	return retval;
+}
+
+
+/*
+ * sys_execve() executes a new program.
+ */
+int do_execve(char * filename, char ** argv, char ** envp, struct pt_regs * regs)
+{
+	struct linux_binprm bprm;
+	struct file *file;
+	int retval;
+	int i;
+
+	file = open_exec(filename);
+
+	retval = PTR_ERR(file);
+	if (IS_ERR(file))
+		return retval;
+
+	bprm.p = PAGE_SIZE*MAX_ARG_PAGES-sizeof(void *);
+	memset(bprm.page, 0, MAX_ARG_PAGES*sizeof(bprm.page[0])); 
+
+	bprm.file = file;
+	bprm.filename = filename;
+	bprm.sh_bang = 0;
+	bprm.loader = 0;
+	bprm.exec = 0;
+	if ((bprm.argc = count(argv, bprm.p / sizeof(void *))) < 0) {
+		allow_write_access(file);
+		fput(file);
+		return bprm.argc;
+	}
+
+	if ((bprm.envc = count(envp, bprm.p / sizeof(void *))) < 0) {
+		allow_write_access(file);
+		fput(file);
+		return bprm.envc;
+	}
+
+	retval = prepare_binprm(&bprm);
+	if (retval < 0) 
+		goto out; 
+
+	retval = copy_strings_kernel(1, &bprm.filename, &bprm);
+	if (retval < 0) 
+		goto out; 
+
+	bprm.exec = bprm.p;
+	retval = copy_strings(bprm.envc, envp, &bprm);
+	if (retval < 0) 
+		goto out; 
+
+	retval = copy_strings(bprm.argc, argv, &bprm);
+	if (retval < 0) 
+		goto out; 
+
+	retval = search_binary_handler(&bprm,regs);
+	if (retval >= 0)
+		/* execve success */
+		return retval;
+
+out:
+	/* Something went wrong, return the inode and free the argument pages*/
+	allow_write_access(bprm.file);
+	if (bprm.file)
+		fput(bprm.file);
+
+	for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
+		struct page * page = bprm.page[i];
+		if (page)
+			__free_page(page);
+	}
+
+	return retval;
+}
+
+void set_binfmt(struct linux_binfmt *new)
+{
+	struct linux_binfmt *old = current->binfmt;
+	if (new && new->module)
+		__MOD_INC_USE_COUNT(new->module);
+	current->binfmt = new;
+	if (old && old->module)
+		__MOD_DEC_USE_COUNT(old->module);
+}
+
+#define CORENAME_MAX_SIZE 64
+
+/* format_corename will inspect the pattern parameter, and output a
+ * name into corename, which must have space for at least
+ * CORENAME_MAX_SIZE bytes plus one byte for the zero terminator.
+ */
+void format_corename(char *corename, const char *pattern, long signr)
+{
+	const char *pat_ptr = pattern;
+	char *out_ptr = corename;
+	char *const out_end = corename + CORENAME_MAX_SIZE;
+	int rc;
+	int pid_in_pattern = 0;
+
+	/* Repeat as long as we have more pattern to process and more output
+	   space */
+	while (*pat_ptr) {
+		if (*pat_ptr != '%') {
+			if (out_ptr == out_end)
+				goto out;
+			*out_ptr++ = *pat_ptr++;
+		} else {
+			switch (*++pat_ptr) {
+			case 0:
+				goto out;
+			/* Double percent, output one percent */
+			case '%':
+				if (out_ptr == out_end)
+					goto out;
+				*out_ptr++ = '%';
+				break;
+			/* pid */
+			case 'p':
+				pid_in_pattern = 1;
+				rc = snprintf(out_ptr, out_end - out_ptr,
+					      "%d", current->pid);
+				if (rc > out_end - out_ptr)
+					goto out;
+				out_ptr += rc;
+				break;
+			/* uid */
+			case 'u':
+				rc = snprintf(out_ptr, out_end - out_ptr,
+					      "%d", current->uid);
+				if (rc > out_end - out_ptr)
+					goto out;
+				out_ptr += rc;
+				break;
+			/* gid */
+			case 'g':
+				rc = snprintf(out_ptr, out_end - out_ptr,
+					      "%d", current->gid);
+				if (rc > out_end - out_ptr)
+					goto out;
+				out_ptr += rc;
+				break;
+			/* signal that caused the coredump */
+			case 's':
+				rc = snprintf(out_ptr, out_end - out_ptr,
+					      "%ld", signr);
+				if (rc > out_end - out_ptr)
+					goto out;
+				out_ptr += rc;
+				break;
+			/* UNIX time of coredump */
+			case 't': {
+				struct timeval tv;
+				do_gettimeofday(&tv);
+				rc = snprintf(out_ptr, out_end - out_ptr,
+					      "%ld", tv.tv_sec);
+				if (rc > out_end - out_ptr)
+					goto out;
+				out_ptr += rc;
+				break;
+			}
+			/* hostname */
+			case 'h':
+				down_read(&uts_sem);
+				rc = snprintf(out_ptr, out_end - out_ptr,
+					      "%s", system_utsname.nodename);
+				up_read(&uts_sem);
+				if (rc > out_end - out_ptr)
+					goto out;
+				out_ptr += rc;
+				break;
+			/* executable */
+			case 'e':
+				rc = snprintf(out_ptr, out_end - out_ptr,
+					      "%s", current->comm);
+				if (rc > out_end - out_ptr)
+					goto out;
+				out_ptr += rc;
+				break;
+			default:
+				break;
+			}
+			++pat_ptr;
+		}
+	}
+	/* Backward compatibility with core_uses_pid:
+	 *
+	 * If core_pattern does not include a %p (as is the default)
+	 * and core_uses_pid is set, then .%pid will be appended to
+	 * the filename */
+	if (!pid_in_pattern
+            && (core_uses_pid || atomic_read(&current->mm->mm_users) != 1)) {
+		rc = snprintf(out_ptr, out_end - out_ptr,
+			      ".%d", current->pid);
+		if (rc > out_end - out_ptr)
+			goto out;
+		out_ptr += rc;
+	}
+      out:
+	*out_ptr = 0;
+}
+
+int do_coredump(long signr, struct pt_regs * regs)
+{
+	struct linux_binfmt * binfmt;
+	char corename[CORENAME_MAX_SIZE + 1];
+	struct file * file;
+	struct inode * inode;
+	int retval = 0;
+	int fsuid = current->fsuid;
+
+	lock_kernel();
+	binfmt = current->binfmt;
+	if (!binfmt || !binfmt->core_dump)
+		goto fail;
+	if (!is_dumpable(current))
+	{
+		if(!core_setuid_ok || !current->task_dumpable)
+			goto fail;
+		current->fsuid = 0;
+	}
+	current->mm->dumpable = 0;
+	if (current->rlim[RLIMIT_CORE].rlim_cur < binfmt->min_coredump)
+		goto fail;
+
+ 	format_corename(corename, core_pattern, signr);
+	file = filp_open(corename, O_CREAT | 2 | O_NOFOLLOW, 0600);
+	if (IS_ERR(file))
+		goto fail;
+	inode = file->f_dentry->d_inode;
+	if (inode->i_nlink > 1)
+		goto close_fail;	/* multiple links - don't dump */
+	if (d_unhashed(file->f_dentry))
+		goto close_fail;
+
+	if (!S_ISREG(inode->i_mode))
+		goto close_fail;
+	if (!file->f_op)
+		goto close_fail;
+	if (!file->f_op->write)
+		goto close_fail;
+	if (do_truncate(file->f_dentry, 0) != 0)
+		goto close_fail;
+
+	retval = binfmt->core_dump(signr, regs, file);
+
+close_fail:
+	filp_close(file, NULL);
+fail:
+	if (fsuid != current->fsuid)
+		current->fsuid = fsuid;
+	unlock_kernel();
+	return retval;
+}
diff --git a/fs/ext2/CHANGES b/fs/ext2/CHANGES
new file mode 100644
index 00000000000000..aa5aaf0e5911c4
--- /dev/null
+++ b/fs/ext2/CHANGES
@@ -0,0 +1,157 @@
+Changes from version 0.5a to version 0.5b
+=========================================
+	- Now that we have sysctl(), the immutable flag cannot be changed when
+	  the system is running at security level > 0.
+	- Some cleanups in the code.
+	- More consistency checks on directories.
+	- The ext2.diff patch from Tom May <ftom@netcom.com> has been
+	  integrated.  This patch replaces expensive "/" and "%" with
+	  cheap ">>" and "&" where possible.
+
+Changes from version 0.5 to version 0.5a
+========================================
+	- Zero the partial block following the end of the file when a file
+	  is truncated.
+	- Dates updated in the copyright.
+	- More checks when the filesystem is mounted: the count of blocks,
+	  fragments, and inodes per group is checked against the block size.
+	- The buffers used by the error routines are now static variables, to
+	  avoid using space on the kernel stack, as requested by Linus.
+	- Some cleanups in the error messages (some versions of syslog contain
+	  a bug which truncates an error message if it contains '\n').
+	- Check that no data can be written to a file past the 2GB limit.
+	- The famous readdir() bug has been fixed by Stephen Tweedie.
+	- Added a revision level in the superblock.
+	- Full support for O_SYNC flag of the open system call.
+	- New mount options: `resuid=#uid' and `resgid=#gid'.  `resuid' causes
+	  ext2fs to consider user #uid like root for the reserved blocks.
+	  `resgid' acts the same way with group #gid.  New fields in the
+	  superblock contain default values for resuid and resgid and can
+	  be modified by tune2fs.
+	  Idea comes from Rene Cougnenc <cougnenc@renux.frmug.fr.net>.
+	- New mount options: `bsddf' and `minixdf'.  `bsddf' causes ext2fs
+	  to remove the blocks used for FS structures from the total block
+	  count in statfs.  With `minixdf', ext2fs mimics Minix behavior
+	  in statfs (i.e. it returns the total number of blocks on the
+	  partition).  This is intended to make bde happy :-)
+	- New file attributes:
+	  - Immutable files cannot be modified.  Data cannot be written to
+	    these files.  They cannot be removed, renamed and new links cannot
+	    be created.  Even root cannot modify the files.  He has to remove
+	    the immutable attribute first.
+	  - Append-only files: can only be written in append-mode when writing.
+	    They cannot be removed, renamed and new links cannot be created.
+	    Note: files may only be added to an append-only directory.
+	  - No-dump files: the attribute is not used by the kernel.  My port
+	    of dump uses it to avoid backing up files which are not important.
+	- New check in ext2_check_dir_entry: the inode number is checked.
+	- Support for big file systems: the copy of the FS descriptor is now
+	  dynamically allocated (previous versions used a fixed size array).
+	  This allows to mount 2GB+ FS.
+	- Reorganization of the ext2_inode structure to allow other operating
+	  systems to create specific fields if they use ext2fs as their native
+	  file system.  Currently, ext2fs is only implemented in Linux but
+	  will soon be part of Gnu Hurd and of Masix.
+
+Changes from version 0.4b to version 0.5
+========================================
+	- New superblock fields: s_lastcheck and s_checkinterval added
+	  by Uwe Ohse <uwe@tirka.gun.de> to implement timedependent checks
+	  of the file system
+	- Real random numbers for secure rm added by Pierre del Perugia
+	  <delperug@gla.ecoledoc.ibp.fr>
+	- The mount warnings related to the state of a fs are not printed
+	  if the fs is mounted read-only, idea by Nick Holloway
+	  <alfie@dcs.warwick.ac.uk>
+
+Changes from version 0.4a to version 0.4b
+=========================================
+	- Copyrights changed to include the name of my laboratory.
+	- Clean up of balloc.c and ialloc.c.
+	- More consistency checks.
+	- Block preallocation added by Stephen Tweedie.
+	- Direct reads of directories disallowed.
+	- Readahead implemented in readdir by Stephen Tweedie.
+	- Bugs in block and inodes allocation fixed.
+	- Readahead implemented in ext2_find_entry by Chip Salzenberg.
+	- New mount options:
+	  `check=none|normal|strict'
+	  `debug'
+	  `errors=continue|remount-ro|panic'
+	  `grpid', `bsdgroups'
+	  `nocheck'
+	  `nogrpid', `sysvgroups'
+	- truncate() now tries to deallocate contiguous blocks in a single call
+	  to ext2_free_blocks().
+	- lots of cosmetic changes.
+
+Changes from version 0.4 to version 0.4a
+========================================
+        - the `sync' option support is now complete.  Version 0.4 was not
+          supporting it when truncating a file.  I have tested the synchronous
+          writes and they work but they make the system very slow :-(  I have
+          to work again on this to make it faster.
+        - when detecting an error on a mounted filesystem, version 0.4 used
+          to try to write a flag in the super block even if the filesystem had
+          been mounted read-only.  This is fixed.
+        - the `sb=#' option now causes the kernel code to use the filesystem
+          descriptors located at block #+1.  Version 0.4 used the superblock
+          backup located at block # but used the main copy of the descriptors.
+        - a new file attribute `S' is supported.  This attribute causes
+          synchronous writes but is applied to a file not to the entire file
+          system (thanks to Michael Kraehe <kraehe@bakunin.north.de> for
+          suggesting it).
+        - the directory cache is inhibited by default.  The cache management
+          code seems to be buggy and I have to look at it carefully before
+          using it again.
+        - deleting a file with the `s' attribute (secure deletion) causes its
+          blocks to be overwritten with random values not with zeros (thanks to
+          Michael A. Griffith <grif@cs.ucr.edu> for suggesting it).
+        - lots of cosmetic changes have been made.
+
+Changes from version 0.3 to version 0.4
+=======================================
+        - Three new mount options are supported: `check', `sync' and `sb=#'.
+          `check' tells the kernel code to make more consistency checks
+          when the file system is mounted.  Currently, the kernel code checks
+          that the blocks and inodes bitmaps are consistent with the free
+          blocks and inodes counts.  More checks will be added in future
+          releases.
+          `sync' tells the kernel code to use synchronous writes when updating
+          an inode, a bitmap, a directory entry or an indirect block.  This
+          can make the file system much slower but can be a big win for files
+          recovery in case of a crash (and we can now say to the BSD folks
+          that Linux also supports synchronous updates :-).
+          `sb=#' tells the kernel code to use an alternate super block instead
+          of its master copy.  `#' is the number of the block (counted in
+          1024 bytes blocks) which contains the alternate super block.
+          An ext2 file system typically contains backups of the super block
+          at blocks 8193, 16385, and so on.
+        - I have change the meaning of the valid flag used by e2fsck.  it
+          now contains the state of the file system.  If the kernel code
+          detects an inconsistency while the file system is mounted, it flags
+          it as erroneous and e2fsck will detect that on next run.
+        - The super block now contains a mount counter.  This counter is
+          incremented each time the file system is mounted read/write.   When
+          this counter becomes bigger than a maximal mount counts (also stored
+          in the super block), e2fsck checks the file system, even if it had
+          been unmounted cleanly, and resets this counter to 0.
+        - File attributes are now supported.  One can associate a set of
+          attributes to a file.  Three attributes are defined:
+          `c': the file is marked for automatic compression,
+          `s': the file is marked for secure deletion: when the file is
+          deleted, its blocks are zeroed and written back to the disk,
+          `u': the file is marked for undeletion: when the file is deleted,
+          its contents are saved to allow a future undeletion.
+          Currently, only the `s' attribute is implemented in the kernel
+          code.  Support for the other attributes will be added in a future
+          release.
+        - a few bugs related to times updates have been fixed by Bruce
+          Evans and me.
+        - a bug related to the links count of deleted inodes has been fixed.
+          Previous versions used to keep the links count set to 1 when a file
+          was deleted.  The new version now sets links_count to 0 when deleting
+          the last link.
+        - a race condition when deallocating an inode has been fixed by
+          Stephen Tweedie.
+
diff --git a/fs/ext2/Makefile b/fs/ext2/Makefile
new file mode 100644
index 00000000000000..60e07beee0837e
--- /dev/null
+++ b/fs/ext2/Makefile
@@ -0,0 +1,16 @@
+#
+# Makefile for the linux ext2-filesystem routines.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile...
+
+O_TARGET := ext2.o
+
+obj-y    := balloc.o bitmap.o dir.o file.o fsync.o ialloc.o inode.o \
+		ioctl.o namei.o super.o symlink.o
+obj-m    := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c
new file mode 100644
index 00000000000000..2cd14eb3dba528
--- /dev/null
+++ b/fs/ext2/balloc.c
@@ -0,0 +1,785 @@
+/*
+ *  linux/fs/ext2/balloc.c
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ *  Enhanced block allocation by Stephen Tweedie (sct@dcs.ed.ac.uk), 1993
+ *  Big-endian to little-endian byte-swapping/bitmaps by
+ *        David S. Miller (davem@caip.rutgers.edu), 1995
+ */
+
+#include <linux/config.h>
+#include <linux/fs.h>
+#include <linux/ext2_fs.h>
+#include <linux/locks.h>
+#include <linux/quotaops.h>
+
+/*
+ * balloc.c contains the blocks allocation and deallocation routines
+ */
+
+/*
+ * The free blocks are managed by bitmaps.  A file system contains several
+ * blocks groups.  Each group contains 1 bitmap block for blocks, 1 bitmap
+ * block for inodes, N blocks for the inode table and data blocks.
+ *
+ * The file system contains group descriptors which are located after the
+ * super block.  Each descriptor contains the number of the bitmap block and
+ * the free blocks count in the block.  The descriptors are loaded in memory
+ * when a file system is mounted (see ext2_read_super).
+ */
+
+
+#define in_range(b, first, len)		((b) >= (first) && (b) <= (first) + (len) - 1)
+
+struct ext2_group_desc * ext2_get_group_desc(struct super_block * sb,
+					     unsigned int block_group,
+					     struct buffer_head ** bh)
+{
+	unsigned long group_desc;
+	unsigned long desc;
+	struct ext2_group_desc * gdp;
+
+	if (block_group >= sb->u.ext2_sb.s_groups_count) {
+		ext2_error (sb, "ext2_get_group_desc",
+			    "block_group >= groups_count - "
+			    "block_group = %d, groups_count = %lu",
+			    block_group, sb->u.ext2_sb.s_groups_count);
+
+		return NULL;
+	}
+	
+	group_desc = block_group / EXT2_DESC_PER_BLOCK(sb);
+	desc = block_group % EXT2_DESC_PER_BLOCK(sb);
+	if (!sb->u.ext2_sb.s_group_desc[group_desc]) {
+		ext2_error (sb, "ext2_get_group_desc",
+			    "Group descriptor not loaded - "
+			    "block_group = %d, group_desc = %lu, desc = %lu",
+			     block_group, group_desc, desc);
+		return NULL;
+	}
+	
+	gdp = (struct ext2_group_desc *) 
+	      sb->u.ext2_sb.s_group_desc[group_desc]->b_data;
+	if (bh)
+		*bh = sb->u.ext2_sb.s_group_desc[group_desc];
+	return gdp + desc;
+}
+
+/*
+ * Read the bitmap for a given block_group, reading into the specified 
+ * slot in the superblock's bitmap cache.
+ *
+ * Return >=0 on success or a -ve error code.
+ */
+
+static int read_block_bitmap (struct super_block * sb,
+			       unsigned int block_group,
+			       unsigned long bitmap_nr)
+{
+	struct ext2_group_desc * gdp;
+	struct buffer_head * bh = NULL;
+	int retval = -EIO;
+	
+	gdp = ext2_get_group_desc (sb, block_group, NULL);
+	if (!gdp)
+		goto error_out;
+	retval = 0;
+	bh = sb_bread(sb, le32_to_cpu(gdp->bg_block_bitmap));
+	if (!bh) {
+		ext2_error (sb, "read_block_bitmap",
+			    "Cannot read block bitmap - "
+			    "block_group = %d, block_bitmap = %lu",
+			    block_group, (unsigned long) gdp->bg_block_bitmap);
+		retval = -EIO;
+	}
+	/*
+	 * On IO error, just leave a zero in the superblock's block pointer for
+	 * this group.  The IO will be retried next time.
+	 */
+error_out:
+	sb->u.ext2_sb.s_block_bitmap_number[bitmap_nr] = block_group;
+	sb->u.ext2_sb.s_block_bitmap[bitmap_nr] = bh;
+	return retval;
+}
+
+/*
+ * load_block_bitmap loads the block bitmap for a blocks group
+ *
+ * It maintains a cache for the last bitmaps loaded.  This cache is managed
+ * with a LRU algorithm.
+ *
+ * Notes:
+ * 1/ There is one cache per mounted file system.
+ * 2/ If the file system contains less than EXT2_MAX_GROUP_LOADED groups,
+ *    this function reads the bitmap without maintaining a LRU cache.
+ * 
+ * Return the slot used to store the bitmap, or a -ve error code.
+ */
+static int __load_block_bitmap (struct super_block * sb,
+			        unsigned int block_group)
+{
+	int i, j, retval = 0;
+	unsigned long block_bitmap_number;
+	struct buffer_head * block_bitmap;
+
+	if (block_group >= sb->u.ext2_sb.s_groups_count)
+		ext2_panic (sb, "load_block_bitmap",
+			    "block_group >= groups_count - "
+			    "block_group = %d, groups_count = %lu",
+			    block_group, sb->u.ext2_sb.s_groups_count);
+
+	if (sb->u.ext2_sb.s_groups_count <= EXT2_MAX_GROUP_LOADED) {
+		if (sb->u.ext2_sb.s_block_bitmap[block_group]) {
+			if (sb->u.ext2_sb.s_block_bitmap_number[block_group] ==
+			    block_group)
+				return block_group;
+			ext2_error (sb, "__load_block_bitmap",
+				    "block_group != block_bitmap_number");
+		}
+		retval = read_block_bitmap (sb, block_group, block_group);
+		if (retval < 0)
+			return retval;
+		return block_group;
+	}
+
+	for (i = 0; i < sb->u.ext2_sb.s_loaded_block_bitmaps &&
+		    sb->u.ext2_sb.s_block_bitmap_number[i] != block_group; i++)
+		;
+	if (i < sb->u.ext2_sb.s_loaded_block_bitmaps &&
+  	    sb->u.ext2_sb.s_block_bitmap_number[i] == block_group) {
+		block_bitmap_number = sb->u.ext2_sb.s_block_bitmap_number[i];
+		block_bitmap = sb->u.ext2_sb.s_block_bitmap[i];
+		for (j = i; j > 0; j--) {
+			sb->u.ext2_sb.s_block_bitmap_number[j] =
+				sb->u.ext2_sb.s_block_bitmap_number[j - 1];
+			sb->u.ext2_sb.s_block_bitmap[j] =
+				sb->u.ext2_sb.s_block_bitmap[j - 1];
+		}
+		sb->u.ext2_sb.s_block_bitmap_number[0] = block_bitmap_number;
+		sb->u.ext2_sb.s_block_bitmap[0] = block_bitmap;
+
+		/*
+		 * There's still one special case here --- if block_bitmap == 0
+		 * then our last attempt to read the bitmap failed and we have
+		 * just ended up caching that failure.  Try again to read it.
+		 */
+		if (!block_bitmap)
+			retval = read_block_bitmap (sb, block_group, 0);
+	} else {
+		if (sb->u.ext2_sb.s_loaded_block_bitmaps < EXT2_MAX_GROUP_LOADED)
+			sb->u.ext2_sb.s_loaded_block_bitmaps++;
+		else
+			brelse (sb->u.ext2_sb.s_block_bitmap[EXT2_MAX_GROUP_LOADED - 1]);
+		for (j = sb->u.ext2_sb.s_loaded_block_bitmaps - 1; j > 0; j--) {
+			sb->u.ext2_sb.s_block_bitmap_number[j] =
+				sb->u.ext2_sb.s_block_bitmap_number[j - 1];
+			sb->u.ext2_sb.s_block_bitmap[j] =
+				sb->u.ext2_sb.s_block_bitmap[j - 1];
+		}
+		retval = read_block_bitmap (sb, block_group, 0);
+	}
+	return retval;
+}
+
+/*
+ * Load the block bitmap for a given block group.  First of all do a couple
+ * of fast lookups for common cases and then pass the request onto the guts
+ * of the bitmap loader.
+ *
+ * Return the slot number of the group in the superblock bitmap cache's on
+ * success, or a -ve error code.
+ *
+ * There is still one inconsistency here --- if the number of groups in this
+ * filesystems is <= EXT2_MAX_GROUP_LOADED, then we have no way of 
+ * differentiating between a group for which we have never performed a bitmap
+ * IO request, and a group for which the last bitmap read request failed.
+ */
+static inline int load_block_bitmap (struct super_block * sb,
+				     unsigned int block_group)
+{
+	int slot;
+	
+	/*
+	 * Do the lookup for the slot.  First of all, check if we're asking
+	 * for the same slot as last time, and did we succeed that last time?
+	 */
+	if (sb->u.ext2_sb.s_loaded_block_bitmaps > 0 &&
+	    sb->u.ext2_sb.s_block_bitmap_number[0] == block_group &&
+	    sb->u.ext2_sb.s_block_bitmap[0]) {
+		return 0;
+	}
+	/*
+	 * Or can we do a fast lookup based on a loaded group on a filesystem
+	 * small enough to be mapped directly into the superblock?
+	 */
+	else if (sb->u.ext2_sb.s_groups_count <= EXT2_MAX_GROUP_LOADED && 
+		 sb->u.ext2_sb.s_block_bitmap_number[block_group] == block_group &&
+		 sb->u.ext2_sb.s_block_bitmap[block_group]) {
+		slot = block_group;
+	}
+	/*
+	 * If not, then do a full lookup for this block group.
+	 */
+	else {
+		slot = __load_block_bitmap (sb, block_group);
+	}
+
+	/*
+	 * <0 means we just got an error
+	 */
+	if (slot < 0)
+		return slot;
+	
+	/*
+	 * If it's a valid slot, we may still have cached a previous IO error,
+	 * in which case the bh in the superblock cache will be zero.
+	 */
+	if (!sb->u.ext2_sb.s_block_bitmap[slot])
+		return -EIO;
+	
+	/*
+	 * Must have been read in OK to get this far.
+	 */
+	return slot;
+}
+
+/* Free given blocks, update quota and i_blocks field */
+void ext2_free_blocks (struct inode * inode, unsigned long block,
+		       unsigned long count)
+{
+	struct buffer_head * bh;
+	struct buffer_head * bh2;
+	unsigned long block_group;
+	unsigned long bit;
+	unsigned long i;
+	int bitmap_nr;
+	unsigned long overflow;
+	struct super_block * sb;
+	struct ext2_group_desc * gdp;
+	struct ext2_super_block * es;
+
+	sb = inode->i_sb;
+	if (!sb) {
+		printk ("ext2_free_blocks: nonexistent device");
+		return;
+	}
+	lock_super (sb);
+	es = sb->u.ext2_sb.s_es;
+	if (block < le32_to_cpu(es->s_first_data_block) ||
+	    block + count < block ||
+	    (block + count) > le32_to_cpu(es->s_blocks_count)) {
+		ext2_error (sb, "ext2_free_blocks",
+			    "Freeing blocks not in datazone - "
+			    "block = %lu, count = %lu", block, count);
+		goto error_return;
+	}
+
+	ext2_debug ("freeing block(s) %lu-%lu\n", block, block + count - 1);
+
+do_more:
+	overflow = 0;
+	block_group = (block - le32_to_cpu(es->s_first_data_block)) /
+		      EXT2_BLOCKS_PER_GROUP(sb);
+	bit = (block - le32_to_cpu(es->s_first_data_block)) %
+		      EXT2_BLOCKS_PER_GROUP(sb);
+	/*
+	 * Check to see if we are freeing blocks across a group
+	 * boundary.
+	 */
+	if (bit + count > EXT2_BLOCKS_PER_GROUP(sb)) {
+		overflow = bit + count - EXT2_BLOCKS_PER_GROUP(sb);
+		count -= overflow;
+	}
+	bitmap_nr = load_block_bitmap (sb, block_group);
+	if (bitmap_nr < 0)
+		goto error_return;
+	
+	bh = sb->u.ext2_sb.s_block_bitmap[bitmap_nr];
+	gdp = ext2_get_group_desc (sb, block_group, &bh2);
+	if (!gdp)
+		goto error_return;
+
+	for (i = 0; i < count; i++, block++) {
+		if (block == le32_to_cpu(gdp->bg_block_bitmap) ||
+		    block == le32_to_cpu(gdp->bg_inode_bitmap) ||
+		    in_range(block, le32_to_cpu(gdp->bg_inode_table),
+			     EXT2_SB(sb)->s_itb_per_group)) {
+			ext2_error(sb, __FUNCTION__,
+				   "Freeing block in system zone - block = %lu",
+				   block);
+			continue;
+		}
+
+		if (!ext2_clear_bit (bit + i, bh->b_data))
+			ext2_error(sb, __FUNCTION__,
+				   "bit already cleared for block %lu", block);
+		else {
+			DQUOT_FREE_BLOCK(inode, 1);
+			gdp->bg_free_blocks_count =
+				cpu_to_le16(le16_to_cpu(gdp->bg_free_blocks_count)+1);
+			es->s_free_blocks_count =
+				cpu_to_le32(le32_to_cpu(es->s_free_blocks_count)+1);
+		}
+	}
+	
+	mark_buffer_dirty(bh2);
+	mark_buffer_dirty(sb->u.ext2_sb.s_sbh);
+
+	mark_buffer_dirty(bh);
+	if (sb->s_flags & MS_SYNCHRONOUS) {
+		ll_rw_block (WRITE, 1, &bh);
+		wait_on_buffer (bh);
+	}
+	if (overflow) {
+		count = overflow;
+		goto do_more;
+	}
+	sb->s_dirt = 1;
+error_return:
+	unlock_super (sb);
+	return;
+}
+
+/*
+ * ext2_new_block uses a goal block to assist allocation.  If the goal is
+ * free, or there is a free block within 32 blocks of the goal, that block
+ * is allocated.  Otherwise a forward search is made for a free block; within 
+ * each block group the search first looks for an entire free byte in the block
+ * bitmap, and then for any free bit if that fails.
+ * This function also updates quota and i_blocks field.
+ */
+int ext2_new_block (struct inode * inode, unsigned long goal,
+    u32 * prealloc_count, u32 * prealloc_block, int * err)
+{
+	struct buffer_head * bh;
+	struct buffer_head * bh2;
+	char * p, * r;
+	int i, j, k, tmp;
+	int bitmap_nr;
+	struct super_block * sb;
+	struct ext2_group_desc * gdp;
+	struct ext2_super_block * es;
+#ifdef EXT2FS_DEBUG
+	static int goal_hits = 0, goal_attempts = 0;
+#endif
+	*err = -ENOSPC;
+	sb = inode->i_sb;
+	if (!sb) {
+		printk ("ext2_new_block: nonexistent device");
+		return 0;
+	}
+
+	lock_super (sb);
+	es = sb->u.ext2_sb.s_es;
+	if (le32_to_cpu(es->s_free_blocks_count) <= le32_to_cpu(es->s_r_blocks_count) &&
+	    ((sb->u.ext2_sb.s_resuid != current->fsuid) &&
+	     (sb->u.ext2_sb.s_resgid == 0 ||
+	      !in_group_p (sb->u.ext2_sb.s_resgid)) && 
+	     !capable(CAP_SYS_RESOURCE)))
+		goto out;
+
+	ext2_debug ("goal=%lu.\n", goal);
+
+repeat:
+	/*
+	 * First, test whether the goal block is free.
+	 */
+	if (goal < le32_to_cpu(es->s_first_data_block) ||
+	    goal >= le32_to_cpu(es->s_blocks_count))
+		goal = le32_to_cpu(es->s_first_data_block);
+	i = (goal - le32_to_cpu(es->s_first_data_block)) / EXT2_BLOCKS_PER_GROUP(sb);
+	gdp = ext2_get_group_desc (sb, i, &bh2);
+	if (!gdp)
+		goto io_error;
+
+	if (le16_to_cpu(gdp->bg_free_blocks_count) > 0) {
+		j = ((goal - le32_to_cpu(es->s_first_data_block)) % EXT2_BLOCKS_PER_GROUP(sb));
+#ifdef EXT2FS_DEBUG
+		if (j)
+			goal_attempts++;
+#endif
+		bitmap_nr = load_block_bitmap (sb, i);
+		if (bitmap_nr < 0)
+			goto io_error;
+		
+		bh = sb->u.ext2_sb.s_block_bitmap[bitmap_nr];
+
+		ext2_debug ("goal is at %d:%d.\n", i, j);
+
+		if (!ext2_test_bit(j, bh->b_data)) {
+			ext2_debug("goal bit allocated, %d hits\n",++goal_hits);
+			goto got_block;
+		}
+		if (j) {
+			/*
+			 * The goal was occupied; search forward for a free 
+			 * block within the next XX blocks.
+			 *
+			 * end_goal is more or less random, but it has to be
+			 * less than EXT2_BLOCKS_PER_GROUP. Aligning up to the
+			 * next 64-bit boundary is simple..
+			 */
+			int end_goal = (j + 63) & ~63;
+			j = ext2_find_next_zero_bit(bh->b_data, end_goal, j);
+			if (j < end_goal)
+				goto got_block;
+		}
+	
+		ext2_debug ("Bit not found near goal\n");
+
+		/*
+		 * There has been no free block found in the near vicinity
+		 * of the goal: do a search forward through the block groups,
+		 * searching in each group first for an entire free byte in
+		 * the bitmap and then for any free bit.
+		 * 
+		 * Search first in the remainder of the current group; then,
+		 * cyclicly search through the rest of the groups.
+		 */
+		p = ((char *) bh->b_data) + (j >> 3);
+		r = memscan(p, 0, (EXT2_BLOCKS_PER_GROUP(sb) - j + 7) >> 3);
+		k = (r - ((char *) bh->b_data)) << 3;
+		if (k < EXT2_BLOCKS_PER_GROUP(sb)) {
+			j = k;
+			goto search_back;
+		}
+
+		k = ext2_find_next_zero_bit ((unsigned long *) bh->b_data, 
+					EXT2_BLOCKS_PER_GROUP(sb),
+					j);
+		if (k < EXT2_BLOCKS_PER_GROUP(sb)) {
+			j = k;
+			goto got_block;
+		}
+	}
+
+	ext2_debug ("Bit not found in block group %d.\n", i);
+
+	/*
+	 * Now search the rest of the groups.  We assume that 
+	 * i and gdp correctly point to the last group visited.
+	 */
+	for (k = 0; k < sb->u.ext2_sb.s_groups_count; k++) {
+		i++;
+		if (i >= sb->u.ext2_sb.s_groups_count)
+			i = 0;
+		gdp = ext2_get_group_desc (sb, i, &bh2);
+		if (!gdp)
+			goto io_error;
+		if (le16_to_cpu(gdp->bg_free_blocks_count) > 0)
+			break;
+	}
+	if (k >= sb->u.ext2_sb.s_groups_count)
+		goto out;
+	bitmap_nr = load_block_bitmap (sb, i);
+	if (bitmap_nr < 0)
+		goto io_error;
+	
+	bh = sb->u.ext2_sb.s_block_bitmap[bitmap_nr];
+	r = memscan(bh->b_data, 0, EXT2_BLOCKS_PER_GROUP(sb) >> 3);
+	j = (r - bh->b_data) << 3;
+	if (j < EXT2_BLOCKS_PER_GROUP(sb))
+		goto search_back;
+	else
+		j = ext2_find_first_zero_bit ((unsigned long *) bh->b_data,
+					 EXT2_BLOCKS_PER_GROUP(sb));
+	if (j >= EXT2_BLOCKS_PER_GROUP(sb)) {
+		ext2_error (sb, "ext2_new_block",
+			    "Free blocks count corrupted for block group %d", i);
+		goto out;
+	}
+
+search_back:
+	/* 
+	 * We have succeeded in finding a free byte in the block
+	 * bitmap.  Now search backwards up to 7 bits to find the
+	 * start of this group of free blocks.
+	 */
+	for (k = 0; k < 7 && j > 0 && !ext2_test_bit (j - 1, bh->b_data); k++, j--);
+	
+got_block:
+
+	ext2_debug ("using block group %d(%d)\n", i, gdp->bg_free_blocks_count);
+
+	/*
+	 * Check quota for allocation of this block.
+	 */
+	if(DQUOT_ALLOC_BLOCK(inode, 1)) {
+		*err = -EDQUOT;
+		goto out;
+	}
+
+	tmp = j + i * EXT2_BLOCKS_PER_GROUP(sb) + le32_to_cpu(es->s_first_data_block);
+
+	if (tmp == le32_to_cpu(gdp->bg_block_bitmap) ||
+	    tmp == le32_to_cpu(gdp->bg_inode_bitmap) ||
+	    in_range (tmp, le32_to_cpu(gdp->bg_inode_table),
+		      EXT2_SB(sb)->s_itb_per_group)) {
+		ext2_error (sb, "ext2_new_block",
+			    "Allocating block in system zone - block = %u",
+			    tmp);
+		ext2_set_bit(j, bh->b_data);
+		DQUOT_FREE_BLOCK(inode, 1);
+		goto repeat;
+	}
+
+	if (ext2_set_bit (j, bh->b_data)) {
+		ext2_warning (sb, "ext2_new_block",
+			      "bit already set for block %d", j);
+		DQUOT_FREE_BLOCK(inode, 1);
+		goto repeat;
+	}
+
+	ext2_debug ("found bit %d\n", j);
+
+	/*
+	 * Do block preallocation now if required.
+	 */
+#ifdef EXT2_PREALLOCATE
+	/* Writer: ->i_prealloc* */
+	if (prealloc_count && !*prealloc_count) {
+		int	prealloc_goal;
+		unsigned long next_block = tmp + 1;
+
+		prealloc_goal = es->s_prealloc_blocks ?
+			es->s_prealloc_blocks : EXT2_DEFAULT_PREALLOC_BLOCKS;
+
+		*prealloc_block = next_block;
+		/* Writer: end */
+		for (k = 1;
+		     k < prealloc_goal && (j + k) < EXT2_BLOCKS_PER_GROUP(sb);
+		     k++, next_block++) {
+			if (DQUOT_PREALLOC_BLOCK(inode, 1))
+				break;
+			/* Writer: ->i_prealloc* */
+			if (*prealloc_block + *prealloc_count != next_block ||
+			    ext2_set_bit (j + k, bh->b_data)) {
+				/* Writer: end */
+				DQUOT_FREE_BLOCK(inode, 1);
+ 				break;
+			}
+			(*prealloc_count)++;
+			/* Writer: end */
+		}	
+		/*
+		 * As soon as we go for per-group spinlocks we'll need these
+		 * done inside the loop above.
+		 */
+		gdp->bg_free_blocks_count =
+			cpu_to_le16(le16_to_cpu(gdp->bg_free_blocks_count) -
+			       (k - 1));
+		es->s_free_blocks_count =
+			cpu_to_le32(le32_to_cpu(es->s_free_blocks_count) -
+			       (k - 1));
+		ext2_debug ("Preallocated a further %lu bits.\n",
+			       (k - 1));
+	}
+#endif
+
+	j = tmp;
+
+	mark_buffer_dirty(bh);
+	if (sb->s_flags & MS_SYNCHRONOUS) {
+		ll_rw_block (WRITE, 1, &bh);
+		wait_on_buffer (bh);
+	}
+
+	if (j >= le32_to_cpu(es->s_blocks_count)) {
+		ext2_error (sb, "ext2_new_block",
+			    "block(%d) >= blocks count(%d) - "
+			    "block_group = %d, es == %p ",j,
+			le32_to_cpu(es->s_blocks_count), i, es);
+		goto out;
+	}
+
+	ext2_debug ("allocating block %d. "
+		    "Goal hits %d of %d.\n", j, goal_hits, goal_attempts);
+
+	gdp->bg_free_blocks_count = cpu_to_le16(le16_to_cpu(gdp->bg_free_blocks_count) - 1);
+	mark_buffer_dirty(bh2);
+	es->s_free_blocks_count = cpu_to_le32(le32_to_cpu(es->s_free_blocks_count) - 1);
+	mark_buffer_dirty(sb->u.ext2_sb.s_sbh);
+	sb->s_dirt = 1;
+	unlock_super (sb);
+	*err = 0;
+	return j;
+	
+io_error:
+	*err = -EIO;
+out:
+	unlock_super (sb);
+	return 0;
+	
+}
+
+unsigned long ext2_count_free_blocks (struct super_block * sb)
+{
+#ifdef EXT2FS_DEBUG
+	struct ext2_super_block * es;
+	unsigned long desc_count, bitmap_count, x;
+	int bitmap_nr;
+	struct ext2_group_desc * gdp;
+	int i;
+	
+	lock_super (sb);
+	es = sb->u.ext2_sb.s_es;
+	desc_count = 0;
+	bitmap_count = 0;
+	gdp = NULL;
+	for (i = 0; i < sb->u.ext2_sb.s_groups_count; i++) {
+		gdp = ext2_get_group_desc (sb, i, NULL);
+		if (!gdp)
+			continue;
+		desc_count += le16_to_cpu(gdp->bg_free_blocks_count);
+		bitmap_nr = load_block_bitmap (sb, i);
+		if (bitmap_nr < 0)
+			continue;
+		
+		x = ext2_count_free (sb->u.ext2_sb.s_block_bitmap[bitmap_nr],
+				     sb->s_blocksize);
+		printk ("group %d: stored = %d, counted = %lu\n",
+			i, le16_to_cpu(gdp->bg_free_blocks_count), x);
+		bitmap_count += x;
+	}
+	printk("ext2_count_free_blocks: stored = %lu, computed = %lu, %lu\n",
+	       le32_to_cpu(es->s_free_blocks_count), desc_count, bitmap_count);
+	unlock_super (sb);
+	return bitmap_count;
+#else
+	return le32_to_cpu(sb->u.ext2_sb.s_es->s_free_blocks_count);
+#endif
+}
+
+static inline int block_in_use (unsigned long block,
+				struct super_block * sb,
+				unsigned char * map)
+{
+	return ext2_test_bit ((block - le32_to_cpu(sb->u.ext2_sb.s_es->s_first_data_block)) %
+			 EXT2_BLOCKS_PER_GROUP(sb), map);
+}
+
+static inline int test_root(int a, int b)
+{
+	if (a == 0)
+		return 1;
+	while (1) {
+		if (a == 1)
+			return 1;
+		if (a % b)
+			return 0;
+		a = a / b;
+	}
+}
+
+int ext2_group_sparse(int group)
+{
+	return (test_root(group, 3) || test_root(group, 5) ||
+		test_root(group, 7));
+}
+
+/**
+ *	ext2_bg_has_super - number of blocks used by the superblock in group
+ *	@sb: superblock for filesystem
+ *	@group: group number to check
+ *
+ *	Return the number of blocks used by the superblock (primary or backup)
+ *	in this group.  Currently this will be only 0 or 1.
+ */
+int ext2_bg_has_super(struct super_block *sb, int group)
+{
+	if (EXT2_HAS_RO_COMPAT_FEATURE(sb,EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)&&
+	    !ext2_group_sparse(group))
+		return 0;
+	return 1;
+}
+
+/**
+ *	ext2_bg_num_gdb - number of blocks used by the group table in group
+ *	@sb: superblock for filesystem
+ *	@group: group number to check
+ *
+ *	Return the number of blocks used by the group descriptor table
+ *	(primary or backup) in this group.  In the future there may be a
+ *	different number of descriptor blocks in each group.
+ */
+unsigned long ext2_bg_num_gdb(struct super_block *sb, int group)
+{
+	if (EXT2_HAS_RO_COMPAT_FEATURE(sb,EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)&&
+	    !ext2_group_sparse(group))
+		return 0;
+	return EXT2_SB(sb)->s_gdb_count;
+}
+
+#ifdef CONFIG_EXT2_CHECK
+/* Called at mount-time, super-block is locked */
+void ext2_check_blocks_bitmap (struct super_block * sb)
+{
+	struct buffer_head * bh;
+	struct ext2_super_block * es;
+	unsigned long desc_count, bitmap_count, x, j;
+	unsigned long desc_blocks;
+	int bitmap_nr;
+	struct ext2_group_desc * gdp;
+	int i;
+
+	es = sb->u.ext2_sb.s_es;
+	desc_count = 0;
+	bitmap_count = 0;
+	gdp = NULL;
+	for (i = 0; i < sb->u.ext2_sb.s_groups_count; i++) {
+		gdp = ext2_get_group_desc (sb, i, NULL);
+		if (!gdp)
+			continue;
+		desc_count += le16_to_cpu(gdp->bg_free_blocks_count);
+		bitmap_nr = load_block_bitmap (sb, i);
+		if (bitmap_nr < 0)
+			continue;
+
+		bh = EXT2_SB(sb)->s_block_bitmap[bitmap_nr];
+
+		if (ext2_bg_has_super(sb, i) && !ext2_test_bit(0, bh->b_data))
+			ext2_error(sb, __FUNCTION__,
+				   "Superblock in group %d is marked free", i);
+
+		desc_blocks = ext2_bg_num_gdb(sb, i);
+		for (j = 0; j < desc_blocks; j++)
+			if (!ext2_test_bit(j + 1, bh->b_data))
+				ext2_error(sb, __FUNCTION__,
+					   "Descriptor block #%ld in group "
+					   "%d is marked free", j, i);
+
+		if (!block_in_use (le32_to_cpu(gdp->bg_block_bitmap), sb, bh->b_data))
+			ext2_error (sb, "ext2_check_blocks_bitmap",
+				    "Block bitmap for group %d is marked free",
+				    i);
+
+		if (!block_in_use (le32_to_cpu(gdp->bg_inode_bitmap), sb, bh->b_data))
+			ext2_error (sb, "ext2_check_blocks_bitmap",
+				    "Inode bitmap for group %d is marked free",
+				    i);
+
+		for (j = 0; j < sb->u.ext2_sb.s_itb_per_group; j++)
+			if (!block_in_use (le32_to_cpu(gdp->bg_inode_table) + j, sb, bh->b_data))
+				ext2_error (sb, "ext2_check_blocks_bitmap",
+					    "Block #%ld of the inode table in "
+					    "group %d is marked free", j, i);
+
+		x = ext2_count_free (bh, sb->s_blocksize);
+		if (le16_to_cpu(gdp->bg_free_blocks_count) != x)
+			ext2_error (sb, "ext2_check_blocks_bitmap",
+				    "Wrong free blocks count for group %d, "
+				    "stored = %d, counted = %lu", i,
+				    le16_to_cpu(gdp->bg_free_blocks_count), x);
+		bitmap_count += x;
+	}
+	if (le32_to_cpu(es->s_free_blocks_count) != bitmap_count)
+		ext2_error (sb, "ext2_check_blocks_bitmap",
+			    "Wrong free blocks count in super block, "
+			    "stored = %lu, counted = %lu",
+			    (unsigned long) le32_to_cpu(es->s_free_blocks_count), bitmap_count);
+}
+#endif
diff --git a/fs/ext2/bitmap.c b/fs/ext2/bitmap.c
new file mode 100644
index 00000000000000..c30a3b075bf88f
--- /dev/null
+++ b/fs/ext2/bitmap.c
@@ -0,0 +1,27 @@
+/*
+ *  linux/fs/ext2/bitmap.c
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ */
+
+#include <linux/fs.h>
+#include <linux/ext2_fs.h>
+
+
+static int nibblemap[] = {4, 3, 3, 2, 3, 2, 2, 1, 3, 2, 2, 1, 2, 1, 1, 0};
+
+unsigned long ext2_count_free (struct buffer_head * map, unsigned int numchars)
+{
+	unsigned int i;
+	unsigned long sum = 0;
+	
+	if (!map) 
+		return (0);
+	for (i = 0; i < numchars; i++)
+		sum += nibblemap[map->b_data[i] & 0xf] +
+			nibblemap[(map->b_data[i] >> 4) & 0xf];
+	return (sum);
+}
diff --git a/fs/ext2/dir.c b/fs/ext2/dir.c
new file mode 100644
index 00000000000000..58b76dd0cd29fa
--- /dev/null
+++ b/fs/ext2/dir.c
@@ -0,0 +1,600 @@
+/*
+ *  linux/fs/ext2/dir.c
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ *  from
+ *
+ *  linux/fs/minix/dir.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  ext2 directory handling functions
+ *
+ *  Big-endian to little-endian byte-swapping/bitmaps by
+ *        David S. Miller (davem@caip.rutgers.edu), 1995
+ *
+ * All code that works with directory layout had been switched to pagecache
+ * and moved here. AV
+ */
+
+#include <linux/fs.h>
+#include <linux/ext2_fs.h>
+#include <linux/pagemap.h>
+
+typedef struct ext2_dir_entry_2 ext2_dirent;
+
+/*
+ * ext2 uses block-sized chunks. Arguably, sector-sized ones would be
+ * more robust, but we have what we have
+ */
+static inline unsigned ext2_chunk_size(struct inode *inode)
+{
+	return inode->i_sb->s_blocksize;
+}
+
+static inline void ext2_put_page(struct page *page)
+{
+	kunmap(page);
+	page_cache_release(page);
+}
+
+static inline unsigned long dir_pages(struct inode *inode)
+{
+	return (inode->i_size+PAGE_CACHE_SIZE-1)>>PAGE_CACHE_SHIFT;
+}
+
+static int ext2_commit_chunk(struct page *page, unsigned from, unsigned to)
+{
+	struct inode *dir = page->mapping->host;
+	int err = 0;
+	dir->i_version = ++event;
+	page->mapping->a_ops->commit_write(NULL, page, from, to);
+	if (IS_SYNC(dir)) {
+		int err2;
+		err = writeout_one_page(page);
+		err2 = waitfor_one_page(page);
+		if (err == 0)
+			err = err2;
+	}
+	return err;
+}
+
+static void ext2_check_page(struct page *page)
+{
+	struct inode *dir = page->mapping->host;
+	struct super_block *sb = dir->i_sb;
+	unsigned chunk_size = ext2_chunk_size(dir);
+	char *kaddr = page_address(page);
+	u32 max_inumber = le32_to_cpu(sb->u.ext2_sb.s_es->s_inodes_count);
+	unsigned offs, rec_len;
+	unsigned limit = PAGE_CACHE_SIZE;
+	ext2_dirent *p;
+	char *error;
+
+	if ((dir->i_size >> PAGE_CACHE_SHIFT) == page->index) {
+		limit = dir->i_size & ~PAGE_CACHE_MASK;
+		if (limit & (chunk_size - 1))
+			goto Ebadsize;
+		for (offs = limit; offs<PAGE_CACHE_SIZE; offs += chunk_size) {
+			ext2_dirent *p = (ext2_dirent*)(kaddr + offs);
+			p->rec_len = cpu_to_le16(chunk_size);
+		}
+		if (!limit)
+			goto out;
+	}
+	for (offs = 0; offs <= limit - EXT2_DIR_REC_LEN(1); offs += rec_len) {
+		p = (ext2_dirent *)(kaddr + offs);
+		rec_len = le16_to_cpu(p->rec_len);
+
+		if (rec_len < EXT2_DIR_REC_LEN(1))
+			goto Eshort;
+		if (rec_len & 3)
+			goto Ealign;
+		if (rec_len < EXT2_DIR_REC_LEN(p->name_len))
+			goto Enamelen;
+		if (((offs + rec_len - 1) ^ offs) & ~(chunk_size-1))
+			goto Espan;
+		if (le32_to_cpu(p->inode) > max_inumber)
+			goto Einumber;
+	}
+	if (offs != limit)
+		goto Eend;
+out:
+	SetPageChecked(page);
+	return;
+
+	/* Too bad, we had an error */
+
+Ebadsize:
+	ext2_error(sb, "ext2_check_page",
+		"size of directory #%lu is not a multiple of chunk size",
+		dir->i_ino
+	);
+	goto fail;
+Eshort:
+	error = "rec_len is smaller than minimal";
+	goto bad_entry;
+Ealign:
+	error = "unaligned directory entry";
+	goto bad_entry;
+Enamelen:
+	error = "rec_len is too small for name_len";
+	goto bad_entry;
+Espan:
+	error = "directory entry across blocks";
+	goto bad_entry;
+Einumber:
+	error = "inode out of bounds";
+bad_entry:
+	ext2_error (sb, "ext2_check_page", "bad entry in directory #%lu: %s - "
+		"offset=%lu, inode=%lu, rec_len=%d, name_len=%d",
+		dir->i_ino, error, (page->index<<PAGE_CACHE_SHIFT)+offs,
+		(unsigned long) le32_to_cpu(p->inode),
+		rec_len, p->name_len);
+	goto fail;
+Eend:
+	p = (ext2_dirent *)(kaddr + offs);
+	ext2_error (sb, "ext2_check_page",
+		"entry in directory #%lu spans the page boundary"
+		"offset=%lu, inode=%lu",
+		dir->i_ino, (page->index<<PAGE_CACHE_SHIFT)+offs,
+		(unsigned long) le32_to_cpu(p->inode));
+fail:
+	SetPageChecked(page);
+	SetPageError(page);
+}
+
+static struct page * ext2_get_page(struct inode *dir, unsigned long n)
+{
+	struct address_space *mapping = dir->i_mapping;
+	struct page *page = read_cache_page(mapping, n,
+				(filler_t*)mapping->a_ops->readpage, NULL);
+	if (!IS_ERR(page)) {
+		wait_on_page(page);
+		kmap(page);
+		if (!Page_Uptodate(page))
+			goto fail;
+		if (!PageChecked(page))
+			ext2_check_page(page);
+		if (PageError(page))
+			goto fail;
+	}
+	return page;
+
+fail:
+	ext2_put_page(page);
+	return ERR_PTR(-EIO);
+}
+
+/*
+ * NOTE! unlike strncmp, ext2_match returns 1 for success, 0 for failure.
+ *
+ * len <= EXT2_NAME_LEN and de != NULL are guaranteed by caller.
+ */
+static inline int ext2_match (int len, const char * const name,
+					struct ext2_dir_entry_2 * de)
+{
+	if (len != de->name_len)
+		return 0;
+	if (!de->inode)
+		return 0;
+	return !memcmp(name, de->name, len);
+}
+
+/*
+ * p is at least 6 bytes before the end of page
+ */
+static inline ext2_dirent *ext2_next_entry(ext2_dirent *p)
+{
+	return (ext2_dirent *)((char*)p + le16_to_cpu(p->rec_len));
+}
+
+static inline unsigned 
+ext2_validate_entry(char *base, unsigned offset, unsigned mask)
+{
+	ext2_dirent *de = (ext2_dirent*)(base + offset);
+	ext2_dirent *p = (ext2_dirent*)(base + (offset&mask));
+	while ((char*)p < (char*)de)
+		p = ext2_next_entry(p);
+	return (char *)p - base;
+}
+
+static unsigned char ext2_filetype_table[EXT2_FT_MAX] = {
+	[EXT2_FT_UNKNOWN]	DT_UNKNOWN,
+	[EXT2_FT_REG_FILE]	DT_REG,
+	[EXT2_FT_DIR]		DT_DIR,
+	[EXT2_FT_CHRDEV]	DT_CHR,
+	[EXT2_FT_BLKDEV]	DT_BLK,
+	[EXT2_FT_FIFO]		DT_FIFO,
+	[EXT2_FT_SOCK]		DT_SOCK,
+	[EXT2_FT_SYMLINK]	DT_LNK,
+};
+
+#define S_SHIFT 12
+static unsigned char ext2_type_by_mode[S_IFMT >> S_SHIFT] = {
+	[S_IFREG >> S_SHIFT]	EXT2_FT_REG_FILE,
+	[S_IFDIR >> S_SHIFT]	EXT2_FT_DIR,
+	[S_IFCHR >> S_SHIFT]	EXT2_FT_CHRDEV,
+	[S_IFBLK >> S_SHIFT]	EXT2_FT_BLKDEV,
+	[S_IFIFO >> S_SHIFT]	EXT2_FT_FIFO,
+	[S_IFSOCK >> S_SHIFT]	EXT2_FT_SOCK,
+	[S_IFLNK >> S_SHIFT]	EXT2_FT_SYMLINK,
+};
+
+static inline void ext2_set_de_type(ext2_dirent *de, struct inode *inode)
+{
+	mode_t mode = inode->i_mode;
+	if (EXT2_HAS_INCOMPAT_FEATURE(inode->i_sb, EXT2_FEATURE_INCOMPAT_FILETYPE))
+		de->file_type = ext2_type_by_mode[(mode & S_IFMT)>>S_SHIFT];
+	else
+		de->file_type = 0;
+}
+
+static int
+ext2_readdir (struct file * filp, void * dirent, filldir_t filldir)
+{
+	loff_t pos = filp->f_pos;
+	struct inode *inode = filp->f_dentry->d_inode;
+	struct super_block *sb = inode->i_sb;
+	unsigned offset = pos & ~PAGE_CACHE_MASK;
+	unsigned long n = pos >> PAGE_CACHE_SHIFT;
+	unsigned long npages = dir_pages(inode);
+	unsigned chunk_mask = ~(ext2_chunk_size(inode)-1);
+	unsigned char *types = NULL;
+	int need_revalidate = (filp->f_version != inode->i_version);
+
+	if (pos > inode->i_size - EXT2_DIR_REC_LEN(1))
+		goto done;
+
+	if (EXT2_HAS_INCOMPAT_FEATURE(sb, EXT2_FEATURE_INCOMPAT_FILETYPE))
+		types = ext2_filetype_table;
+
+	for ( ; n < npages; n++, offset = 0) {
+		char *kaddr, *limit;
+		ext2_dirent *de;
+		struct page *page = ext2_get_page(inode, n);
+
+		if (IS_ERR(page))
+			continue;
+		kaddr = page_address(page);
+		if (need_revalidate) {
+			offset = ext2_validate_entry(kaddr, offset, chunk_mask);
+			need_revalidate = 0;
+		}
+		de = (ext2_dirent *)(kaddr+offset);
+		limit = kaddr + PAGE_CACHE_SIZE - EXT2_DIR_REC_LEN(1);
+		for ( ;(char*)de <= limit; de = ext2_next_entry(de))
+			if (de->inode) {
+				int over;
+				unsigned char d_type = DT_UNKNOWN;
+
+				if (types && de->file_type < EXT2_FT_MAX)
+					d_type = types[de->file_type];
+
+				offset = (char *)de - kaddr;
+				over = filldir(dirent, de->name, de->name_len,
+						(n<<PAGE_CACHE_SHIFT) | offset,
+						le32_to_cpu(de->inode), d_type);
+				if (over) {
+					ext2_put_page(page);
+					goto done;
+				}
+			}
+		ext2_put_page(page);
+	}
+
+done:
+	filp->f_pos = (n << PAGE_CACHE_SHIFT) | offset;
+	filp->f_version = inode->i_version;
+	UPDATE_ATIME(inode);
+	return 0;
+}
+
+/*
+ *	ext2_find_entry()
+ *
+ * finds an entry in the specified directory with the wanted name. It
+ * returns the page in which the entry was found, and the entry itself
+ * (as a parameter - res_dir). Page is returned mapped and unlocked.
+ * Entry is guaranteed to be valid.
+ */
+struct ext2_dir_entry_2 * ext2_find_entry (struct inode * dir,
+			struct dentry *dentry, struct page ** res_page)
+{
+	const char *name = dentry->d_name.name;
+	int namelen = dentry->d_name.len;
+	unsigned reclen = EXT2_DIR_REC_LEN(namelen);
+	unsigned long start, n;
+	unsigned long npages = dir_pages(dir);
+	struct page *page = NULL;
+	ext2_dirent * de;
+
+	/* OFFSET_CACHE */
+	*res_page = NULL;
+
+	start = dir->u.ext2_i.i_dir_start_lookup;
+	if (start >= npages)
+		start = 0;
+	n = start;
+	do {
+		char *kaddr;
+		page = ext2_get_page(dir, n);
+		if (!IS_ERR(page)) {
+			kaddr = page_address(page);
+			de = (ext2_dirent *) kaddr;
+			kaddr += PAGE_CACHE_SIZE - reclen;
+			while ((char *) de <= kaddr) {
+				if (ext2_match (namelen, name, de))
+					goto found;
+				de = ext2_next_entry(de);
+			}
+			ext2_put_page(page);
+		}
+		if (++n >= npages)
+			n = 0;
+	} while (n != start);
+	return NULL;
+
+found:
+	*res_page = page;
+	dir->u.ext2_i.i_dir_start_lookup = n;
+	return de;
+}
+
+struct ext2_dir_entry_2 * ext2_dotdot (struct inode *dir, struct page **p)
+{
+	struct page *page = ext2_get_page(dir, 0);
+	ext2_dirent *de = NULL;
+
+	if (!IS_ERR(page)) {
+		de = ext2_next_entry((ext2_dirent *) page_address(page));
+		*p = page;
+	}
+	return de;
+}
+
+ino_t ext2_inode_by_name(struct inode * dir, struct dentry *dentry)
+{
+	ino_t res = 0;
+	struct ext2_dir_entry_2 * de;
+	struct page *page;
+	
+	de = ext2_find_entry (dir, dentry, &page);
+	if (de) {
+		res = le32_to_cpu(de->inode);
+		kunmap(page);
+		page_cache_release(page);
+	}
+	return res;
+}
+
+/* Releases the page */
+void ext2_set_link(struct inode *dir, struct ext2_dir_entry_2 *de,
+			struct page *page, struct inode *inode)
+{
+	unsigned from = (char *) de - (char *) page_address(page);
+	unsigned to = from + le16_to_cpu(de->rec_len);
+	int err;
+
+	lock_page(page);
+	err = page->mapping->a_ops->prepare_write(NULL, page, from, to);
+	if (err)
+		BUG();
+	de->inode = cpu_to_le32(inode->i_ino);
+	ext2_set_de_type (de, inode);
+	err = ext2_commit_chunk(page, from, to);
+	UnlockPage(page);
+	ext2_put_page(page);
+	dir->i_mtime = dir->i_ctime = CURRENT_TIME;
+	dir->u.ext2_i.i_flags &= ~EXT2_BTREE_FL;
+	mark_inode_dirty(dir);
+}
+
+/*
+ *	Parent is locked.
+ */
+int ext2_add_link (struct dentry *dentry, struct inode *inode)
+{
+	struct inode *dir = dentry->d_parent->d_inode;
+	const char *name = dentry->d_name.name;
+	int namelen = dentry->d_name.len;
+	unsigned reclen = EXT2_DIR_REC_LEN(namelen);
+	unsigned short rec_len, name_len;
+	struct page *page = NULL;
+	ext2_dirent * de;
+	unsigned long npages = dir_pages(dir);
+	unsigned long n;
+	char *kaddr;
+	unsigned from, to;
+	int err;
+
+	/* We take care of directory expansion in the same loop */
+	for (n = 0; n <= npages; n++) {
+		page = ext2_get_page(dir, n);
+		err = PTR_ERR(page);
+		if (IS_ERR(page))
+			goto out;
+		kaddr = page_address(page);
+		de = (ext2_dirent *)kaddr;
+		kaddr += PAGE_CACHE_SIZE - reclen;
+		while ((char *)de <= kaddr) {
+			err = -EEXIST;
+			if (ext2_match (namelen, name, de))
+				goto out_page;
+			name_len = EXT2_DIR_REC_LEN(de->name_len);
+			rec_len = le16_to_cpu(de->rec_len);
+			if (!de->inode && rec_len >= reclen)
+				goto got_it;
+			if (rec_len >= name_len + reclen)
+				goto got_it;
+			de = (ext2_dirent *) ((char *) de + rec_len);
+		}
+		ext2_put_page(page);
+	}
+	BUG();
+	return -EINVAL;
+
+got_it:
+	from = (char*)de - (char*)page_address(page);
+	to = from + rec_len;
+	lock_page(page);
+	err = page->mapping->a_ops->prepare_write(NULL, page, from, to);
+	if (err)
+		goto out_unlock;
+	if (de->inode) {
+		ext2_dirent *de1 = (ext2_dirent *) ((char *) de + name_len);
+		de1->rec_len = cpu_to_le16(rec_len - name_len);
+		de->rec_len = cpu_to_le16(name_len);
+		de = de1;
+	}
+	de->name_len = namelen;
+	memcpy (de->name, name, namelen);
+	de->inode = cpu_to_le32(inode->i_ino);
+	ext2_set_de_type (de, inode);
+	err = ext2_commit_chunk(page, from, to);
+	dir->i_mtime = dir->i_ctime = CURRENT_TIME;
+	dir->u.ext2_i.i_flags &= ~EXT2_BTREE_FL;
+	mark_inode_dirty(dir);
+	/* OFFSET_CACHE */
+out_unlock:
+	UnlockPage(page);
+out_page:
+	ext2_put_page(page);
+out:
+	return err;
+}
+
+/*
+ * ext2_delete_entry deletes a directory entry by merging it with the
+ * previous entry. Page is up-to-date. Releases the page.
+ */
+int ext2_delete_entry (struct ext2_dir_entry_2 * dir, struct page * page )
+{
+	struct address_space *mapping = page->mapping;
+	struct inode *inode = mapping->host;
+	char *kaddr = page_address(page);
+	unsigned from = ((char*)dir - kaddr) & ~(ext2_chunk_size(inode)-1);
+	unsigned to = ((char*)dir - kaddr) + le16_to_cpu(dir->rec_len);
+	ext2_dirent * pde = NULL;
+	ext2_dirent * de = (ext2_dirent *) (kaddr + from);
+	int err;
+
+	while ((char*)de < (char*)dir) {
+		pde = de;
+		de = ext2_next_entry(de);
+	}
+	if (pde)
+		from = (char*)pde - (char*)page_address(page);
+	lock_page(page);
+	err = mapping->a_ops->prepare_write(NULL, page, from, to);
+	if (err)
+		BUG();
+	if (pde)
+		pde->rec_len = cpu_to_le16(to-from);
+	dir->inode = 0;
+	err = ext2_commit_chunk(page, from, to);
+	UnlockPage(page);
+	ext2_put_page(page);
+	inode->i_ctime = inode->i_mtime = CURRENT_TIME;
+	inode->u.ext2_i.i_flags &= ~EXT2_BTREE_FL;
+	mark_inode_dirty(inode);
+	return err;
+}
+
+/*
+ * Set the first fragment of directory.
+ */
+int ext2_make_empty(struct inode *inode, struct inode *parent)
+{
+	struct address_space *mapping = inode->i_mapping;
+	struct page *page = grab_cache_page(mapping, 0);
+	unsigned chunk_size = ext2_chunk_size(inode);
+	struct ext2_dir_entry_2 * de;
+	char *base;
+	int err;
+
+	if (!page)
+		return -ENOMEM;
+	err = mapping->a_ops->prepare_write(NULL, page, 0, chunk_size);
+	if (err)
+		goto fail;
+
+	base = page_address(page);
+	
+	memset(base, 0, chunk_size); 
+	de = (struct ext2_dir_entry_2 *) base;
+	de->name_len = 1;
+	de->rec_len = cpu_to_le16(EXT2_DIR_REC_LEN(1));
+	memcpy (de->name, ".\0\0", 4);
+	de->inode = cpu_to_le32(inode->i_ino);
+	ext2_set_de_type (de, inode);
+
+	de = (struct ext2_dir_entry_2 *) (base + EXT2_DIR_REC_LEN(1));
+	de->name_len = 2;
+	de->rec_len = cpu_to_le16(chunk_size - EXT2_DIR_REC_LEN(1));
+	de->inode = cpu_to_le32(parent->i_ino);
+	memcpy (de->name, "..\0", 4);
+	ext2_set_de_type (de, inode);
+
+	err = ext2_commit_chunk(page, 0, chunk_size);
+fail:
+	UnlockPage(page);
+	page_cache_release(page);
+	return err;
+}
+
+/*
+ * routine to check that the specified directory is empty (for rmdir)
+ */
+int ext2_empty_dir (struct inode * inode)
+{
+	struct page *page = NULL;
+	unsigned long i, npages = dir_pages(inode);
+	
+	for (i = 0; i < npages; i++) {
+		char *kaddr;
+		ext2_dirent * de;
+		page = ext2_get_page(inode, i);
+
+		if (IS_ERR(page))
+			continue;
+
+		kaddr = page_address(page);
+		de = (ext2_dirent *)kaddr;
+		kaddr += PAGE_CACHE_SIZE-EXT2_DIR_REC_LEN(1);
+
+		while ((char *)de <= kaddr) {
+			if (de->inode != 0) {
+				/* check for . and .. */
+				if (de->name[0] != '.')
+					goto not_empty;
+				if (de->name_len > 2)
+					goto not_empty;
+				if (de->name_len < 2) {
+					if (de->inode !=
+					    cpu_to_le32(inode->i_ino))
+						goto not_empty;
+				} else if (de->name[1] != '.')
+					goto not_empty;
+			}
+			de = ext2_next_entry(de);
+		}
+		ext2_put_page(page);
+	}
+	return 1;
+
+not_empty:
+	ext2_put_page(page);
+	return 0;
+}
+
+struct file_operations ext2_dir_operations = {
+	read:		generic_read_dir,
+	readdir:	ext2_readdir,
+	ioctl:		ext2_ioctl,
+	fsync:		ext2_sync_file,
+};
diff --git a/fs/ext2/file.c b/fs/ext2/file.c
new file mode 100644
index 00000000000000..8d978bdf66bee0
--- /dev/null
+++ b/fs/ext2/file.c
@@ -0,0 +1,54 @@
+/*
+ *  linux/fs/ext2/file.c
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ *  from
+ *
+ *  linux/fs/minix/file.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  ext2 fs regular file handling primitives
+ *
+ *  64-bit file support on 64-bit platforms by Jakub Jelinek
+ * 	(jj@sunsite.ms.mff.cuni.cz)
+ */
+
+#include <linux/fs.h>
+#include <linux/ext2_fs.h>
+#include <linux/sched.h>
+
+/*
+ * Called when an inode is released. Note that this is different
+ * from ext2_open_file: open gets called at every open, but release
+ * gets called only when /all/ the files are closed.
+ */
+static int ext2_release_file (struct inode * inode, struct file * filp)
+{
+	if (filp->f_mode & FMODE_WRITE)
+		ext2_discard_prealloc (inode);
+	return 0;
+}
+
+/*
+ * We have mostly NULL's here: the current defaults are ok for
+ * the ext2 filesystem.
+ */
+struct file_operations ext2_file_operations = {
+	llseek:		generic_file_llseek,
+	read:		generic_file_read,
+	write:		generic_file_write,
+	ioctl:		ext2_ioctl,
+	mmap:		generic_file_mmap,
+	open:		generic_file_open,
+	release:	ext2_release_file,
+	fsync:		ext2_sync_file,
+};
+
+struct inode_operations ext2_file_inode_operations = {
+	truncate:	ext2_truncate,
+};
diff --git a/fs/ext2/fsync.c b/fs/ext2/fsync.c
new file mode 100644
index 00000000000000..211e52c7fc5b47
--- /dev/null
+++ b/fs/ext2/fsync.c
@@ -0,0 +1,55 @@
+/*
+ *  linux/fs/ext2/fsync.c
+ *
+ *  Copyright (C) 1993  Stephen Tweedie (sct@dcs.ed.ac.uk)
+ *  from
+ *  Copyright (C) 1992  Remy Card (card@masi.ibp.fr)
+ *                      Laboratoire MASI - Institut Blaise Pascal
+ *                      Universite Pierre et Marie Curie (Paris VI)
+ *  from
+ *  linux/fs/minix/truncate.c   Copyright (C) 1991, 1992  Linus Torvalds
+ * 
+ *  ext2fs fsync primitive
+ *
+ *  Big-endian to little-endian byte-swapping/bitmaps by
+ *        David S. Miller (davem@caip.rutgers.edu), 1995
+ * 
+ *  Removed unnecessary code duplication for little endian machines
+ *  and excessive __inline__s. 
+ *        Andi Kleen, 1997
+ *
+ * Major simplications and cleanup - we only need to do the metadata, because
+ * we can depend on generic_block_fdatasync() to sync the data blocks.
+ */
+
+#include <linux/fs.h>
+#include <linux/ext2_fs.h>
+#include <linux/locks.h>
+#include <linux/smp_lock.h>
+
+
+/*
+ *	File may be NULL when we are called. Perhaps we shouldn't
+ *	even pass file to fsync ?
+ */
+
+int ext2_sync_file(struct file * file, struct dentry *dentry, int datasync)
+{
+	struct inode *inode = dentry->d_inode;
+	return ext2_fsync_inode(inode, datasync);
+}
+
+int ext2_fsync_inode(struct inode *inode, int datasync)
+{
+	int err;
+	
+	err  = fsync_inode_buffers(inode);
+	err |= fsync_inode_data_buffers(inode);
+	if (!(inode->i_state & I_DIRTY))
+		return err;
+	if (datasync && !(inode->i_state & I_DIRTY_DATASYNC))
+		return err;
+	
+	err |= ext2_sync_inode(inode);
+	return err ? -EIO : 0;
+}
diff --git a/fs/ext2/ialloc.c b/fs/ext2/ialloc.c
new file mode 100644
index 00000000000000..ed9a314e7630fa
--- /dev/null
+++ b/fs/ext2/ialloc.c
@@ -0,0 +1,508 @@
+/*
+ *  linux/fs/ext2/ialloc.c
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ *  BSD ufs-inspired inode and directory allocation by 
+ *  Stephen Tweedie (sct@dcs.ed.ac.uk), 1993
+ *  Big-endian to little-endian byte-swapping/bitmaps by
+ *        David S. Miller (davem@caip.rutgers.edu), 1995
+ */
+
+#include <linux/config.h>
+#include <linux/fs.h>
+#include <linux/ext2_fs.h>
+#include <linux/locks.h>
+#include <linux/quotaops.h>
+
+
+/*
+ * ialloc.c contains the inodes allocation and deallocation routines
+ */
+
+/*
+ * The free inodes are managed by bitmaps.  A file system contains several
+ * blocks groups.  Each group contains 1 bitmap block for blocks, 1 bitmap
+ * block for inodes, N blocks for the inode table and data blocks.
+ *
+ * The file system contains group descriptors which are located after the
+ * super block.  Each descriptor contains the number of the bitmap block and
+ * the free blocks count in the block.  The descriptors are loaded in memory
+ * when a file system is mounted (see ext2_read_super).
+ */
+
+
+/*
+ * Read the inode allocation bitmap for a given block_group, reading
+ * into the specified slot in the superblock's bitmap cache.
+ *
+ * Return buffer_head of bitmap on success or NULL.
+ */
+static struct buffer_head *read_inode_bitmap (struct super_block * sb,
+					       unsigned long block_group)
+{
+	struct ext2_group_desc *desc;
+	struct buffer_head *bh = NULL;
+
+	desc = ext2_get_group_desc(sb, block_group, NULL);
+	if (!desc)
+		goto error_out;
+
+	bh = sb_bread(sb, le32_to_cpu(desc->bg_inode_bitmap));
+	if (!bh)
+		ext2_error (sb, "read_inode_bitmap",
+			    "Cannot read inode bitmap - "
+			    "block_group = %lu, inode_bitmap = %lu",
+			    block_group, (unsigned long) desc->bg_inode_bitmap);
+error_out:
+	return bh;
+}
+
+/*
+ * load_inode_bitmap loads the inode bitmap for a blocks group
+ *
+ * It maintains a cache for the last bitmaps loaded.  This cache is managed
+ * with a LRU algorithm.
+ *
+ * Notes:
+ * 1/ There is one cache per mounted file system.
+ * 2/ If the file system contains less than EXT2_MAX_GROUP_LOADED groups,
+ *    this function reads the bitmap without maintaining a LRU cache.
+ * 
+ * Return the buffer_head of the bitmap or the ERR_PTR(error)
+ */
+static struct buffer_head *load_inode_bitmap (struct super_block * sb,
+					      unsigned int block_group)
+{
+	int i, slot = 0;
+	struct ext2_sb_info *sbi = &sb->u.ext2_sb;
+	struct buffer_head *bh = sbi->s_inode_bitmap[0];
+
+	if (block_group >= sbi->s_groups_count)
+		ext2_panic (sb, "load_inode_bitmap",
+			    "block_group >= groups_count - "
+			    "block_group = %d, groups_count = %lu",
+			     block_group, sbi->s_groups_count);
+
+	if (sbi->s_loaded_inode_bitmaps > 0 &&
+	    sbi->s_inode_bitmap_number[0] == block_group && bh)
+		goto found;
+
+	if (sbi->s_groups_count <= EXT2_MAX_GROUP_LOADED) {
+		slot = block_group;
+		bh = sbi->s_inode_bitmap[slot];
+		if (!bh)
+			goto read_it;
+		if (sbi->s_inode_bitmap_number[slot] == slot)
+			goto found;
+		ext2_panic (sb, "load_inode_bitmap",
+			    "block_group != inode_bitmap_number");
+	}
+
+	bh = NULL;
+	for (i = 0; i < sbi->s_loaded_inode_bitmaps &&
+		    sbi->s_inode_bitmap_number[i] != block_group;
+	     i++)
+		;
+	if (i < sbi->s_loaded_inode_bitmaps)
+		bh = sbi->s_inode_bitmap[i];
+	else if (sbi->s_loaded_inode_bitmaps < EXT2_MAX_GROUP_LOADED)
+		sbi->s_loaded_inode_bitmaps++;
+	else
+		brelse (sbi->s_inode_bitmap[--i]);
+
+	while (i--) {
+		sbi->s_inode_bitmap_number[i+1] = sbi->s_inode_bitmap_number[i];
+		sbi->s_inode_bitmap[i+1] = sbi->s_inode_bitmap[i];
+	}
+
+read_it:
+	if (!bh)
+		bh = read_inode_bitmap (sb, block_group);
+	sbi->s_inode_bitmap_number[slot] = block_group;
+	sbi->s_inode_bitmap[slot] = bh;
+	if (!bh)
+		return ERR_PTR(-EIO);
+found:
+	return bh;
+}
+
+/*
+ * NOTE! When we get the inode, we're the only people
+ * that have access to it, and as such there are no
+ * race conditions we have to worry about. The inode
+ * is not on the hash-lists, and it cannot be reached
+ * through the filesystem because the directory entry
+ * has been deleted earlier.
+ *
+ * HOWEVER: we must make sure that we get no aliases,
+ * which means that we have to call "clear_inode()"
+ * _before_ we mark the inode not in use in the inode
+ * bitmaps. Otherwise a newly created file might use
+ * the same inode number (not actually the same pointer
+ * though), and then we'd have two inodes sharing the
+ * same inode number and space on the harddisk.
+ */
+void ext2_free_inode (struct inode * inode)
+{
+	struct super_block * sb = inode->i_sb;
+	int is_directory;
+	unsigned long ino;
+	struct buffer_head * bh;
+	struct buffer_head * bh2;
+	unsigned long block_group;
+	unsigned long bit;
+	struct ext2_group_desc * desc;
+	struct ext2_super_block * es;
+
+	ino = inode->i_ino;
+	ext2_debug ("freeing inode %lu\n", ino);
+
+	/*
+	 * Note: we must free any quota before locking the superblock,
+	 * as writing the quota to disk may need the lock as well.
+	 */
+	if (!is_bad_inode(inode)) {
+		/* Quota is already initialized in iput() */
+	    	DQUOT_FREE_INODE(inode);
+		DQUOT_DROP(inode);
+	}
+
+	lock_super (sb);
+	es = sb->u.ext2_sb.s_es;
+	is_directory = S_ISDIR(inode->i_mode);
+
+	/* Do this BEFORE marking the inode not in use or returning an error */
+	clear_inode (inode);
+
+	if (ino < EXT2_FIRST_INO(sb) ||
+	    ino > le32_to_cpu(es->s_inodes_count)) {
+		ext2_error (sb, "ext2_free_inode",
+			    "reserved or nonexistent inode %lu", ino);
+		goto error_return;
+	}
+	block_group = (ino - 1) / EXT2_INODES_PER_GROUP(sb);
+	bit = (ino - 1) % EXT2_INODES_PER_GROUP(sb);
+	bh = load_inode_bitmap (sb, block_group);
+	if (IS_ERR(bh))
+		goto error_return;
+
+	/* Ok, now we can actually update the inode bitmaps.. */
+	if (!ext2_clear_bit (bit, bh->b_data))
+		ext2_error (sb, "ext2_free_inode",
+			      "bit already cleared for inode %lu", ino);
+	else {
+		desc = ext2_get_group_desc (sb, block_group, &bh2);
+		if (desc) {
+			desc->bg_free_inodes_count =
+				cpu_to_le16(le16_to_cpu(desc->bg_free_inodes_count) + 1);
+			if (is_directory)
+				desc->bg_used_dirs_count =
+					cpu_to_le16(le16_to_cpu(desc->bg_used_dirs_count) - 1);
+		}
+		mark_buffer_dirty(bh2);
+		es->s_free_inodes_count =
+			cpu_to_le32(le32_to_cpu(es->s_free_inodes_count) + 1);
+		mark_buffer_dirty(sb->u.ext2_sb.s_sbh);
+	}
+	mark_buffer_dirty(bh);
+	if (sb->s_flags & MS_SYNCHRONOUS) {
+		ll_rw_block (WRITE, 1, &bh);
+		wait_on_buffer (bh);
+	}
+	sb->s_dirt = 1;
+error_return:
+	unlock_super (sb);
+}
+
+/*
+ * There are two policies for allocating an inode.  If the new inode is
+ * a directory, then a forward search is made for a block group with both
+ * free space and a low directory-to-inode ratio; if that fails, then of
+ * the groups with above-average free space, that group with the fewest
+ * directories already is chosen.
+ *
+ * For other inodes, search forward from the parent directory\'s block
+ * group to find a free inode.
+ */
+
+static int find_group_dir(struct super_block *sb, int parent_group)
+{
+	struct ext2_super_block * es = sb->u.ext2_sb.s_es;
+	int ngroups = sb->u.ext2_sb.s_groups_count;
+	int avefreei = le32_to_cpu(es->s_free_inodes_count) / ngroups;
+	struct ext2_group_desc *desc, *best_desc = NULL;
+	struct buffer_head *bh, *best_bh = NULL;
+	int group, best_group = -1;
+
+	for (group = 0; group < ngroups; group++) {
+		desc = ext2_get_group_desc (sb, group, &bh);
+		if (!desc || !desc->bg_free_inodes_count)
+			continue;
+		if (le16_to_cpu(desc->bg_free_inodes_count) < avefreei)
+			continue;
+		if (!best_desc || 
+		    (le16_to_cpu(desc->bg_free_blocks_count) >
+		     le16_to_cpu(best_desc->bg_free_blocks_count))) {
+			best_group = group;
+			best_desc = desc;
+			best_bh = bh;
+		}
+	}
+	if (!best_desc)
+		return -1;
+	best_desc->bg_free_inodes_count =
+		cpu_to_le16(le16_to_cpu(best_desc->bg_free_inodes_count) - 1);
+	best_desc->bg_used_dirs_count =
+		cpu_to_le16(le16_to_cpu(best_desc->bg_used_dirs_count) + 1);
+	mark_buffer_dirty(best_bh);
+	return best_group;
+}
+
+static int find_group_other(struct super_block *sb, int parent_group)
+{
+	int ngroups = sb->u.ext2_sb.s_groups_count;
+	struct ext2_group_desc *desc;
+	struct buffer_head *bh;
+	int group, i;
+
+	/*
+	 * Try to place the inode in its parent directory
+	 */
+	group = parent_group;
+	desc = ext2_get_group_desc (sb, group, &bh);
+	if (desc && le16_to_cpu(desc->bg_free_inodes_count))
+		goto found;
+
+	/*
+	 * Use a quadratic hash to find a group with a
+	 * free inode
+	 */
+	for (i = 1; i < ngroups; i <<= 1) {
+		group += i;
+		if (group >= ngroups)
+			group -= ngroups;
+		desc = ext2_get_group_desc (sb, group, &bh);
+		if (desc && le16_to_cpu(desc->bg_free_inodes_count))
+			goto found;
+	}
+
+	/*
+	 * That failed: try linear search for a free inode
+	 */
+	group = parent_group + 1;
+	for (i = 2; i < ngroups; i++) {
+		if (++group >= ngroups)
+			group = 0;
+		desc = ext2_get_group_desc (sb, group, &bh);
+		if (desc && le16_to_cpu(desc->bg_free_inodes_count))
+			goto found;
+	}
+
+	return -1;
+
+found:
+	desc->bg_free_inodes_count =
+		cpu_to_le16(le16_to_cpu(desc->bg_free_inodes_count) - 1);
+	mark_buffer_dirty(bh);
+	return group;
+}
+
+struct inode * ext2_new_inode (const struct inode * dir, int mode)
+{
+	struct super_block * sb;
+	struct buffer_head * bh;
+	struct buffer_head * bh2;
+	int group, i;
+	ino_t ino;
+	struct inode * inode;
+	struct ext2_group_desc * desc;
+	struct ext2_super_block * es;
+	int err;
+
+	sb = dir->i_sb;
+	inode = new_inode(sb);
+	if (!inode)
+		return ERR_PTR(-ENOMEM);
+
+	lock_super (sb);
+	es = sb->u.ext2_sb.s_es;
+repeat:
+	if (S_ISDIR(mode))
+		group = find_group_dir(sb, dir->u.ext2_i.i_block_group);
+	else 
+		group = find_group_other(sb, dir->u.ext2_i.i_block_group);
+
+	err = -ENOSPC;
+	if (group == -1)
+		goto fail;
+
+	err = -EIO;
+	bh = load_inode_bitmap (sb, group);
+	if (IS_ERR(bh))
+		goto fail2;
+
+	i = ext2_find_first_zero_bit ((unsigned long *) bh->b_data,
+				      EXT2_INODES_PER_GROUP(sb));
+	if (i >= EXT2_INODES_PER_GROUP(sb))
+		goto bad_count;
+	ext2_set_bit (i, bh->b_data);
+
+	mark_buffer_dirty(bh);
+	if (sb->s_flags & MS_SYNCHRONOUS) {
+		ll_rw_block (WRITE, 1, &bh);
+		wait_on_buffer (bh);
+	}
+
+	ino = group * EXT2_INODES_PER_GROUP(sb) + i + 1;
+	if (ino < EXT2_FIRST_INO(sb) || ino > le32_to_cpu(es->s_inodes_count)) {
+		ext2_error (sb, "ext2_new_inode",
+			    "reserved inode or inode > inodes count - "
+			    "block_group = %d,inode=%ld", group, ino);
+		err = -EIO;
+		goto fail2;
+	}
+
+	es->s_free_inodes_count =
+		cpu_to_le32(le32_to_cpu(es->s_free_inodes_count) - 1);
+	mark_buffer_dirty(sb->u.ext2_sb.s_sbh);
+	sb->s_dirt = 1;
+	inode->i_uid = current->fsuid;
+	if (test_opt (sb, GRPID))
+		inode->i_gid = dir->i_gid;
+	else if (dir->i_mode & S_ISGID) {
+		inode->i_gid = dir->i_gid;
+		if (S_ISDIR(mode))
+			mode |= S_ISGID;
+	} else
+		inode->i_gid = current->fsgid;
+	inode->i_mode = mode;
+
+	inode->i_ino = ino;
+	inode->i_blksize = PAGE_SIZE;	/* This is the optimal IO size (for stat), not the fs block size */
+	inode->i_blocks = 0;
+	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+	inode->u.ext2_i.i_state = EXT2_STATE_NEW;
+	inode->u.ext2_i.i_flags = dir->u.ext2_i.i_flags & ~EXT2_BTREE_FL;
+	if (S_ISLNK(mode))
+		inode->u.ext2_i.i_flags &= ~(EXT2_IMMUTABLE_FL|EXT2_APPEND_FL);
+	inode->u.ext2_i.i_block_group = group;
+	ext2_set_inode_flags(inode);
+	insert_inode_hash(inode);
+	inode->i_generation = event++;
+	mark_inode_dirty(inode);
+
+	unlock_super (sb);
+	if(DQUOT_ALLOC_INODE(inode)) {
+		DQUOT_DROP(inode);
+		inode->i_flags |= S_NOQUOTA;
+		inode->i_nlink = 0;
+		iput(inode);
+		return ERR_PTR(-EDQUOT);
+	}
+	ext2_debug ("allocating inode %lu\n", inode->i_ino);
+	return inode;
+
+fail2:
+	desc = ext2_get_group_desc (sb, group, &bh2);
+	desc->bg_free_inodes_count =
+		cpu_to_le16(le16_to_cpu(desc->bg_free_inodes_count) + 1);
+	if (S_ISDIR(mode))
+		desc->bg_used_dirs_count =
+			cpu_to_le16(le16_to_cpu(desc->bg_used_dirs_count) - 1);
+	mark_buffer_dirty(bh2);
+fail:
+	unlock_super(sb);
+	make_bad_inode(inode);
+	iput(inode);
+	return ERR_PTR(err);
+
+bad_count:
+	ext2_error (sb, "ext2_new_inode",
+		    "Free inodes count corrupted in group %d",
+		    group);
+	/* Is it really ENOSPC? */
+	err = -ENOSPC;
+	if (sb->s_flags & MS_RDONLY)
+		goto fail;
+
+	desc = ext2_get_group_desc (sb, group, &bh2);
+	desc->bg_free_inodes_count = 0;
+	mark_buffer_dirty(bh2);
+	goto repeat;
+}
+
+unsigned long ext2_count_free_inodes (struct super_block * sb)
+{
+#ifdef EXT2FS_DEBUG
+	struct ext2_super_block * es;
+	unsigned long desc_count = 0, bitmap_count = 0;
+	int i;
+
+	lock_super (sb);
+	es = sb->u.ext2_sb.s_es;
+	for (i = 0; i < sb->u.ext2_sb.s_groups_count; i++) {
+		struct ext2_group_desc *desc = ext2_get_group_desc (sb, i, NULL);
+		struct buffer_head *bh;
+		unsigned x;
+
+		if (!desc)
+			continue;
+		desc_count += le16_to_cpu(desc->bg_free_inodes_count);
+		bh = load_inode_bitmap (sb, i);
+		if (IS_ERR(bh))
+			continue;
+
+		x = ext2_count_free (bh, EXT2_INODES_PER_GROUP(sb) / 8);
+		printk ("group %d: stored = %d, counted = %lu\n",
+			i, le16_to_cpu(desc->bg_free_inodes_count), x);
+		bitmap_count += x;
+	}
+	printk("ext2_count_free_inodes: stored = %lu, computed = %lu, %lu\n",
+		le32_to_cpu(es->s_free_inodes_count), desc_count, bitmap_count);
+	unlock_super (sb);
+	return desc_count;
+#else
+	return le32_to_cpu(sb->u.ext2_sb.s_es->s_free_inodes_count);
+#endif
+}
+
+#ifdef CONFIG_EXT2_CHECK
+/* Called at mount-time, super-block is locked */
+void ext2_check_inodes_bitmap (struct super_block * sb)
+{
+	struct ext2_super_block * es = sb->u.ext2_sb.s_es;
+	unsigned long desc_count = 0, bitmap_count = 0;
+	int i;
+
+	for (i = 0; i < sb->u.ext2_sb.s_groups_count; i++) {
+		struct ext2_group_desc *desc = ext2_get_group_desc(sb, i, NULL);
+		struct buffer_head *bh;
+		unsigned x;
+
+		if (!desc)
+			continue;
+		desc_count += le16_to_cpu(desc->bg_free_inodes_count);
+		bh = load_inode_bitmap (sb, i);
+		if (IS_ERR(bh))
+			continue;
+		
+		x = ext2_count_free (bh, EXT2_INODES_PER_GROUP(sb) / 8);
+		if (le16_to_cpu(desc->bg_free_inodes_count) != x)
+			ext2_error (sb, "ext2_check_inodes_bitmap",
+				    "Wrong free inodes count in group %d, "
+				    "stored = %d, counted = %lu", i,
+				    le16_to_cpu(desc->bg_free_inodes_count), x);
+		bitmap_count += x;
+	}
+	if (le32_to_cpu(es->s_free_inodes_count) != bitmap_count)
+		ext2_error (sb, "ext2_check_inodes_bitmap",
+			    "Wrong free inodes count in super block, "
+			    "stored = %lu, counted = %lu",
+			    (unsigned long)le32_to_cpu(es->s_free_inodes_count),
+			    bitmap_count);
+}
+#endif
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
new file mode 100644
index 00000000000000..c9756a5251e9cf
--- /dev/null
+++ b/fs/ext2/inode.c
@@ -0,0 +1,1180 @@
+/*
+ *  linux/fs/ext2/inode.c
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ *  from
+ *
+ *  linux/fs/minix/inode.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  Goal-directed block allocation by Stephen Tweedie
+ * 	(sct@dcs.ed.ac.uk), 1993, 1998
+ *  Big-endian to little-endian byte-swapping/bitmaps by
+ *        David S. Miller (davem@caip.rutgers.edu), 1995
+ *  64-bit file support on 64-bit platforms by Jakub Jelinek
+ * 	(jj@sunsite.ms.mff.cuni.cz)
+ *
+ *  Assorted race fixes, rewrite of ext2_get_block() by Al Viro, 2000
+ */
+
+#include <linux/fs.h>
+#include <linux/ext2_fs.h>
+#include <linux/locks.h>
+#include <linux/smp_lock.h>
+#include <linux/sched.h>
+#include <linux/highuid.h>
+#include <linux/quotaops.h>
+#include <linux/module.h>
+
+MODULE_AUTHOR("Remy Card and others");
+MODULE_DESCRIPTION("Second Extended Filesystem");
+MODULE_LICENSE("GPL");
+
+/*
+ * Test whether an inode is a fast symlink.
+ */
+static inline int ext2_inode_is_fast_symlink(struct inode *inode)
+{
+	int ea_blocks = inode->u.ext2_i.i_file_acl ?
+		(inode->i_sb->s_blocksize >> 9) : 0;
+
+	return (S_ISLNK(inode->i_mode) &&
+		inode->i_blocks - ea_blocks == 0);
+}
+
+static int ext2_update_inode(struct inode * inode, int do_sync);
+
+/*
+ * Called at each iput()
+ */
+void ext2_put_inode (struct inode * inode)
+{
+	ext2_discard_prealloc (inode);
+}
+
+/*
+ * Called at the last iput() if i_nlink is zero.
+ */
+void ext2_delete_inode (struct inode * inode)
+{
+	lock_kernel();
+
+	if (is_bad_inode(inode) ||
+	    inode->i_ino == EXT2_ACL_IDX_INO ||
+	    inode->i_ino == EXT2_ACL_DATA_INO)
+		goto no_delete;
+	inode->u.ext2_i.i_dtime	= CURRENT_TIME;
+	mark_inode_dirty(inode);
+	ext2_update_inode(inode, IS_SYNC(inode));
+	inode->i_size = 0;
+	if (inode->i_blocks)
+		ext2_truncate (inode);
+	ext2_free_inode (inode);
+
+	unlock_kernel();
+	return;
+no_delete:
+	unlock_kernel();
+	clear_inode(inode);	/* We must guarantee clearing of inode... */
+}
+
+void ext2_discard_prealloc (struct inode * inode)
+{
+#ifdef EXT2_PREALLOCATE
+	lock_kernel();
+	/* Writer: ->i_prealloc* */
+	if (inode->u.ext2_i.i_prealloc_count) {
+		unsigned short total = inode->u.ext2_i.i_prealloc_count;
+		unsigned long block = inode->u.ext2_i.i_prealloc_block;
+		inode->u.ext2_i.i_prealloc_count = 0;
+		inode->u.ext2_i.i_prealloc_block = 0;
+		/* Writer: end */
+		ext2_free_blocks (inode, block, total);
+	}
+	unlock_kernel();
+#endif
+}
+
+static int ext2_alloc_block (struct inode * inode, unsigned long goal, int *err)
+{
+#ifdef EXT2FS_DEBUG
+	static unsigned long alloc_hits = 0, alloc_attempts = 0;
+#endif
+	unsigned long result;
+
+
+#ifdef EXT2_PREALLOCATE
+	/* Writer: ->i_prealloc* */
+	if (inode->u.ext2_i.i_prealloc_count &&
+	    (goal == inode->u.ext2_i.i_prealloc_block ||
+	     goal + 1 == inode->u.ext2_i.i_prealloc_block))
+	{		
+		result = inode->u.ext2_i.i_prealloc_block++;
+		inode->u.ext2_i.i_prealloc_count--;
+		/* Writer: end */
+		ext2_debug ("preallocation hit (%lu/%lu).\n",
+			    ++alloc_hits, ++alloc_attempts);
+	} else {
+		ext2_discard_prealloc (inode);
+		ext2_debug ("preallocation miss (%lu/%lu).\n",
+			    alloc_hits, ++alloc_attempts);
+		if (S_ISREG(inode->i_mode))
+			result = ext2_new_block (inode, goal, 
+				 &inode->u.ext2_i.i_prealloc_count,
+				 &inode->u.ext2_i.i_prealloc_block, err);
+		else
+			result = ext2_new_block (inode, goal, 0, 0, err);
+	}
+#else
+	result = ext2_new_block (inode, goal, 0, 0, err);
+#endif
+	return result;
+}
+
+typedef struct {
+	u32	*p;
+	u32	key;
+	struct buffer_head *bh;
+} Indirect;
+
+static inline void add_chain(Indirect *p, struct buffer_head *bh, u32 *v)
+{
+	p->key = *(p->p = v);
+	p->bh = bh;
+}
+
+static inline int verify_chain(Indirect *from, Indirect *to)
+{
+	while (from <= to && from->key == *from->p)
+		from++;
+	return (from > to);
+}
+
+/**
+ *	ext2_block_to_path - parse the block number into array of offsets
+ *	@inode: inode in question (we are only interested in its superblock)
+ *	@i_block: block number to be parsed
+ *	@offsets: array to store the offsets in
+ *
+ *	To store the locations of file's data ext2 uses a data structure common
+ *	for UNIX filesystems - tree of pointers anchored in the inode, with
+ *	data blocks at leaves and indirect blocks in intermediate nodes.
+ *	This function translates the block number into path in that tree -
+ *	return value is the path length and @offsets[n] is the offset of
+ *	pointer to (n+1)th node in the nth one. If @block is out of range
+ *	(negative or too large) warning is printed and zero returned.
+ *
+ *	Note: function doesn't find node addresses, so no IO is needed. All
+ *	we need to know is the capacity of indirect blocks (taken from the
+ *	inode->i_sb).
+ */
+
+/*
+ * Portability note: the last comparison (check that we fit into triple
+ * indirect block) is spelled differently, because otherwise on an
+ * architecture with 32-bit longs and 8Kb pages we might get into trouble
+ * if our filesystem had 8Kb blocks. We might use long long, but that would
+ * kill us on x86. Oh, well, at least the sign propagation does not matter -
+ * i_block would have to be negative in the very beginning, so we would not
+ * get there at all.
+ */
+
+static int ext2_block_to_path(struct inode *inode, long i_block, int offsets[4])
+{
+	int ptrs = EXT2_ADDR_PER_BLOCK(inode->i_sb);
+	int ptrs_bits = EXT2_ADDR_PER_BLOCK_BITS(inode->i_sb);
+	const long direct_blocks = EXT2_NDIR_BLOCKS,
+		indirect_blocks = ptrs,
+		double_blocks = (1 << (ptrs_bits * 2));
+	int n = 0;
+
+	if (i_block < 0) {
+		ext2_warning (inode->i_sb, "ext2_block_to_path", "block < 0");
+	} else if (i_block < direct_blocks) {
+		offsets[n++] = i_block;
+	} else if ( (i_block -= direct_blocks) < indirect_blocks) {
+		offsets[n++] = EXT2_IND_BLOCK;
+		offsets[n++] = i_block;
+	} else if ((i_block -= indirect_blocks) < double_blocks) {
+		offsets[n++] = EXT2_DIND_BLOCK;
+		offsets[n++] = i_block >> ptrs_bits;
+		offsets[n++] = i_block & (ptrs - 1);
+	} else if (((i_block -= double_blocks) >> (ptrs_bits * 2)) < ptrs) {
+		offsets[n++] = EXT2_TIND_BLOCK;
+		offsets[n++] = i_block >> (ptrs_bits * 2);
+		offsets[n++] = (i_block >> ptrs_bits) & (ptrs - 1);
+		offsets[n++] = i_block & (ptrs - 1);
+	} else {
+		ext2_warning (inode->i_sb, "ext2_block_to_path", "block > big");
+	}
+	return n;
+}
+
+/**
+ *	ext2_get_branch - read the chain of indirect blocks leading to data
+ *	@inode: inode in question
+ *	@depth: depth of the chain (1 - direct pointer, etc.)
+ *	@offsets: offsets of pointers in inode/indirect blocks
+ *	@chain: place to store the result
+ *	@err: here we store the error value
+ *
+ *	Function fills the array of triples <key, p, bh> and returns %NULL
+ *	if everything went OK or the pointer to the last filled triple
+ *	(incomplete one) otherwise. Upon the return chain[i].key contains
+ *	the number of (i+1)-th block in the chain (as it is stored in memory,
+ *	i.e. little-endian 32-bit), chain[i].p contains the address of that
+ *	number (it points into struct inode for i==0 and into the bh->b_data
+ *	for i>0) and chain[i].bh points to the buffer_head of i-th indirect
+ *	block for i>0 and NULL for i==0. In other words, it holds the block
+ *	numbers of the chain, addresses they were taken from (and where we can
+ *	verify that chain did not change) and buffer_heads hosting these
+ *	numbers.
+ *
+ *	Function stops when it stumbles upon zero pointer (absent block)
+ *		(pointer to last triple returned, *@err == 0)
+ *	or when it gets an IO error reading an indirect block
+ *		(ditto, *@err == -EIO)
+ *	or when it notices that chain had been changed while it was reading
+ *		(ditto, *@err == -EAGAIN)
+ *	or when it reads all @depth-1 indirect blocks successfully and finds
+ *	the whole chain, all way to the data (returns %NULL, *err == 0).
+ */
+static Indirect *ext2_get_branch(struct inode *inode,
+				 int depth,
+				 int *offsets,
+				 Indirect chain[4],
+				 int *err)
+{
+	struct super_block *sb = inode->i_sb;
+	Indirect *p = chain;
+	struct buffer_head *bh;
+
+	*err = 0;
+	/* i_data is not going away, no lock needed */
+	add_chain (chain, NULL, inode->u.ext2_i.i_data + *offsets);
+	if (!p->key)
+		goto no_block;
+	while (--depth) {
+		bh = sb_bread(sb, le32_to_cpu(p->key));
+		if (!bh)
+			goto failure;
+		/* Reader: pointers */
+		if (!verify_chain(chain, p))
+			goto changed;
+		add_chain(++p, bh, (u32*)bh->b_data + *++offsets);
+		/* Reader: end */
+		if (!p->key)
+			goto no_block;
+	}
+	return NULL;
+
+changed:
+	*err = -EAGAIN;
+	goto no_block;
+failure:
+	*err = -EIO;
+no_block:
+	return p;
+}
+
+/**
+ *	ext2_find_near - find a place for allocation with sufficient locality
+ *	@inode: owner
+ *	@ind: descriptor of indirect block.
+ *
+ *	This function returns the prefered place for block allocation.
+ *	It is used when heuristic for sequential allocation fails.
+ *	Rules are:
+ *	  + if there is a block to the left of our position - allocate near it.
+ *	  + if pointer will live in indirect block - allocate near that block.
+ *	  + if pointer will live in inode - allocate in the same cylinder group.
+ *	Caller must make sure that @ind is valid and will stay that way.
+ */
+
+static inline unsigned long ext2_find_near(struct inode *inode, Indirect *ind)
+{
+	u32 *start = ind->bh ? (u32*) ind->bh->b_data : inode->u.ext2_i.i_data;
+	u32 *p;
+
+	/* Try to find previous block */
+	for (p = ind->p - 1; p >= start; p--)
+		if (*p)
+			return le32_to_cpu(*p);
+
+	/* No such thing, so let's try location of indirect block */
+	if (ind->bh)
+		return ind->bh->b_blocknr;
+
+	/*
+	 * It is going to be refered from inode itself? OK, just put it into
+	 * the same cylinder group then.
+	 */
+	return (inode->u.ext2_i.i_block_group * 
+		EXT2_BLOCKS_PER_GROUP(inode->i_sb)) +
+	       le32_to_cpu(inode->i_sb->u.ext2_sb.s_es->s_first_data_block);
+}
+
+/**
+ *	ext2_find_goal - find a prefered place for allocation.
+ *	@inode: owner
+ *	@block:  block we want
+ *	@chain:  chain of indirect blocks
+ *	@partial: pointer to the last triple within a chain
+ *	@goal:	place to store the result.
+ *
+ *	Normally this function find the prefered place for block allocation,
+ *	stores it in *@goal and returns zero. If the branch had been changed
+ *	under us we return -EAGAIN.
+ */
+
+static inline int ext2_find_goal(struct inode *inode,
+				 long block,
+				 Indirect chain[4],
+				 Indirect *partial,
+				 unsigned long *goal)
+{
+	/* Writer: ->i_next_alloc* */
+	if (block == inode->u.ext2_i.i_next_alloc_block + 1) {
+		inode->u.ext2_i.i_next_alloc_block++;
+		inode->u.ext2_i.i_next_alloc_goal++;
+	} 
+	/* Writer: end */
+	/* Reader: pointers, ->i_next_alloc* */
+	if (verify_chain(chain, partial)) {
+		/*
+		 * try the heuristic for sequential allocation,
+		 * failing that at least try to get decent locality.
+		 */
+		if (block == inode->u.ext2_i.i_next_alloc_block)
+			*goal = inode->u.ext2_i.i_next_alloc_goal;
+		if (!*goal)
+			*goal = ext2_find_near(inode, partial);
+		return 0;
+	}
+	/* Reader: end */
+	return -EAGAIN;
+}
+
+/**
+ *	ext2_alloc_branch - allocate and set up a chain of blocks.
+ *	@inode: owner
+ *	@num: depth of the chain (number of blocks to allocate)
+ *	@offsets: offsets (in the blocks) to store the pointers to next.
+ *	@branch: place to store the chain in.
+ *
+ *	This function allocates @num blocks, zeroes out all but the last one,
+ *	links them into chain and (if we are synchronous) writes them to disk.
+ *	In other words, it prepares a branch that can be spliced onto the
+ *	inode. It stores the information about that chain in the branch[], in
+ *	the same format as ext2_get_branch() would do. We are calling it after
+ *	we had read the existing part of chain and partial points to the last
+ *	triple of that (one with zero ->key). Upon the exit we have the same
+ *	picture as after the successful ext2_get_block(), excpet that in one
+ *	place chain is disconnected - *branch->p is still zero (we did not
+ *	set the last link), but branch->key contains the number that should
+ *	be placed into *branch->p to fill that gap.
+ *
+ *	If allocation fails we free all blocks we've allocated (and forget
+ *	their buffer_heads) and return the error value the from failed
+ *	ext2_alloc_block() (normally -ENOSPC). Otherwise we set the chain
+ *	as described above and return 0.
+ */
+
+static int ext2_alloc_branch(struct inode *inode,
+			     int num,
+			     unsigned long goal,
+			     int *offsets,
+			     Indirect *branch)
+{
+	int blocksize = inode->i_sb->s_blocksize;
+	int n = 0;
+	int err;
+	int i;
+	int parent = ext2_alloc_block(inode, goal, &err);
+
+	branch[0].key = cpu_to_le32(parent);
+	if (parent) for (n = 1; n < num; n++) {
+		struct buffer_head *bh;
+		/* Allocate the next block */
+		int nr = ext2_alloc_block(inode, parent, &err);
+		if (!nr)
+			break;
+		branch[n].key = cpu_to_le32(nr);
+		/*
+		 * Get buffer_head for parent block, zero it out and set 
+		 * the pointer to new one, then send parent to disk.
+		 */
+		bh = sb_getblk(inode->i_sb, parent);
+		lock_buffer(bh);
+		memset(bh->b_data, 0, blocksize);
+		branch[n].bh = bh;
+		branch[n].p = (u32*) bh->b_data + offsets[n];
+		*branch[n].p = branch[n].key;
+		mark_buffer_uptodate(bh, 1);
+		unlock_buffer(bh);
+		mark_buffer_dirty_inode(bh, inode);
+		/* We used to sync bh here if IS_SYNC(inode).
+		 * But for S_ISREG files we now rely upon generic_osync_inode()
+		 * and b_inode_buffers
+		 */
+		if (S_ISDIR(inode->i_mode) && IS_SYNC(inode)) {
+			ll_rw_block (WRITE, 1, &bh);
+			wait_on_buffer (bh);
+		}
+		parent = nr;
+	}
+	if (n == num)
+		return 0;
+
+	/* Allocation failed, free what we already allocated */
+	for (i = 1; i < n; i++)
+		bforget(branch[i].bh);
+	for (i = 0; i < n; i++)
+		ext2_free_blocks(inode, le32_to_cpu(branch[i].key), 1);
+	return err;
+}
+
+/**
+ *	ext2_splice_branch - splice the allocated branch onto inode.
+ *	@inode: owner
+ *	@block: (logical) number of block we are adding
+ *	@chain: chain of indirect blocks (with a missing link - see
+ *		ext2_alloc_branch)
+ *	@where: location of missing link
+ *	@num:   number of blocks we are adding
+ *
+ *	This function verifies that chain (up to the missing link) had not
+ *	changed, fills the missing link and does all housekeeping needed in
+ *	inode (->i_blocks, etc.). In case of success we end up with the full
+ *	chain to new block and return 0. Otherwise (== chain had been changed)
+ *	we free the new blocks (forgetting their buffer_heads, indeed) and
+ *	return -EAGAIN.
+ */
+
+static inline int ext2_splice_branch(struct inode *inode,
+				     long block,
+				     Indirect chain[4],
+				     Indirect *where,
+				     int num)
+{
+	int i;
+
+	/* Verify that place we are splicing to is still there and vacant */
+
+	/* Writer: pointers, ->i_next_alloc* */
+	if (!verify_chain(chain, where-1) || *where->p)
+		/* Writer: end */
+		goto changed;
+
+	/* That's it */
+
+	*where->p = where->key;
+	inode->u.ext2_i.i_next_alloc_block = block;
+	inode->u.ext2_i.i_next_alloc_goal = le32_to_cpu(where[num-1].key);
+
+	/* Writer: end */
+
+	/* We are done with atomic stuff, now do the rest of housekeeping */
+
+	inode->i_ctime = CURRENT_TIME;
+
+	/* had we spliced it onto indirect block? */
+	if (where->bh) {
+		mark_buffer_dirty_inode(where->bh, inode);
+		if (S_ISDIR(inode->i_mode) && IS_SYNC(inode)) {
+			ll_rw_block(WRITE, 1, &where->bh);
+			wait_on_buffer(where->bh);
+		}
+	}
+
+	mark_inode_dirty(inode);
+	return 0;
+
+changed:
+	for (i = 1; i < num; i++)
+		bforget(where[i].bh);
+	for (i = 0; i < num; i++)
+		ext2_free_blocks(inode, le32_to_cpu(where[i].key), 1);
+	return -EAGAIN;
+}
+
+/*
+ * Allocation strategy is simple: if we have to allocate something, we will
+ * have to go the whole way to leaf. So let's do it before attaching anything
+ * to tree, set linkage between the newborn blocks, write them if sync is
+ * required, recheck the path, free and repeat if check fails, otherwise
+ * set the last missing link (that will protect us from any truncate-generated
+ * removals - all blocks on the path are immune now) and possibly force the
+ * write on the parent block.
+ * That has a nice additional property: no special recovery from the failed
+ * allocations is needed - we simply release blocks and do not touch anything
+ * reachable from inode.
+ */
+
+static int ext2_get_block(struct inode *inode, long iblock, struct buffer_head *bh_result, int create)
+{
+	int err = -EIO;
+	int offsets[4];
+	Indirect chain[4];
+	Indirect *partial;
+	unsigned long goal;
+	int left;
+	int depth = ext2_block_to_path(inode, iblock, offsets);
+
+	if (depth == 0)
+		goto out;
+
+	lock_kernel();
+reread:
+	partial = ext2_get_branch(inode, depth, offsets, chain, &err);
+
+	/* Simplest case - block found, no allocation needed */
+	if (!partial) {
+got_it:
+		bh_result->b_dev = inode->i_dev;
+		bh_result->b_blocknr = le32_to_cpu(chain[depth-1].key);
+		bh_result->b_state |= (1UL << BH_Mapped);
+		/* Clean up and exit */
+		partial = chain+depth-1; /* the whole chain */
+		goto cleanup;
+	}
+
+	/* Next simple case - plain lookup or failed read of indirect block */
+	if (!create || err == -EIO) {
+cleanup:
+		while (partial > chain) {
+			brelse(partial->bh);
+			partial--;
+		}
+		unlock_kernel();
+out:
+		return err;
+	}
+
+	/*
+	 * Indirect block might be removed by truncate while we were
+	 * reading it. Handling of that case (forget what we've got and
+	 * reread) is taken out of the main path.
+	 */
+	if (err == -EAGAIN)
+		goto changed;
+
+	goal = 0;
+	if (ext2_find_goal(inode, iblock, chain, partial, &goal) < 0)
+		goto changed;
+
+	left = (chain + depth) - partial;
+	err = ext2_alloc_branch(inode, left, goal,
+					offsets+(partial-chain), partial);
+	if (err)
+		goto cleanup;
+
+	if (ext2_splice_branch(inode, iblock, chain, partial, left) < 0)
+		goto changed;
+
+	bh_result->b_state |= (1UL << BH_New);
+	goto got_it;
+
+changed:
+	while (partial > chain) {
+		brelse(partial->bh);
+		partial--;
+	}
+	goto reread;
+}
+
+static int ext2_writepage(struct page *page)
+{
+	return block_write_full_page(page,ext2_get_block);
+}
+static int ext2_readpage(struct file *file, struct page *page)
+{
+	return block_read_full_page(page,ext2_get_block);
+}
+static int ext2_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)
+{
+	return block_prepare_write(page,from,to,ext2_get_block);
+}
+static int ext2_bmap(struct address_space *mapping, long block)
+{
+	return generic_block_bmap(mapping,block,ext2_get_block);
+}
+static int ext2_direct_IO(int rw, struct inode * inode, struct kiobuf * iobuf, unsigned long blocknr, int blocksize)
+{
+	return generic_direct_IO(rw, inode, iobuf, blocknr, blocksize, ext2_get_block);
+}
+struct address_space_operations ext2_aops = {
+	readpage: ext2_readpage,
+	writepage: ext2_writepage,
+	sync_page: block_sync_page,
+	prepare_write: ext2_prepare_write,
+	commit_write: generic_commit_write,
+	bmap: ext2_bmap,
+	direct_IO: ext2_direct_IO,
+};
+
+/*
+ * Probably it should be a library function... search for first non-zero word
+ * or memcmp with zero_page, whatever is better for particular architecture.
+ * Linus?
+ */
+static inline int all_zeroes(u32 *p, u32 *q)
+{
+	while (p < q)
+		if (*p++)
+			return 0;
+	return 1;
+}
+
+/**
+ *	ext2_find_shared - find the indirect blocks for partial truncation.
+ *	@inode:	  inode in question
+ *	@depth:	  depth of the affected branch
+ *	@offsets: offsets of pointers in that branch (see ext2_block_to_path)
+ *	@chain:	  place to store the pointers to partial indirect blocks
+ *	@top:	  place to the (detached) top of branch
+ *
+ *	This is a helper function used by ext2_truncate().
+ *
+ *	When we do truncate() we may have to clean the ends of several indirect
+ *	blocks but leave the blocks themselves alive. Block is partially
+ *	truncated if some data below the new i_size is refered from it (and
+ *	it is on the path to the first completely truncated data block, indeed).
+ *	We have to free the top of that path along with everything to the right
+ *	of the path. Since no allocation past the truncation point is possible
+ *	until ext2_truncate() finishes, we may safely do the latter, but top
+ *	of branch may require special attention - pageout below the truncation
+ *	point might try to populate it.
+ *
+ *	We atomically detach the top of branch from the tree, store the block
+ *	number of its root in *@top, pointers to buffer_heads of partially
+ *	truncated blocks - in @chain[].bh and pointers to their last elements
+ *	that should not be removed - in @chain[].p. Return value is the pointer
+ *	to last filled element of @chain.
+ *
+ *	The work left to caller to do the actual freeing of subtrees:
+ *		a) free the subtree starting from *@top
+ *		b) free the subtrees whose roots are stored in
+ *			(@chain[i].p+1 .. end of @chain[i].bh->b_data)
+ *		c) free the subtrees growing from the inode past the @chain[0].p
+ *			(no partially truncated stuff there).
+ */
+
+static Indirect *ext2_find_shared(struct inode *inode,
+				int depth,
+				int offsets[4],
+				Indirect chain[4],
+				u32 *top)
+{
+	Indirect *partial, *p;
+	int k, err;
+
+	*top = 0;
+	for (k = depth; k > 1 && !offsets[k-1]; k--)
+		;
+	partial = ext2_get_branch(inode, k, offsets, chain, &err);
+	/* Writer: pointers */
+	if (!partial)
+		partial = chain + k-1;
+	/*
+	 * If the branch acquired continuation since we've looked at it -
+	 * fine, it should all survive and (new) top doesn't belong to us.
+	 */
+	if (!partial->key && *partial->p)
+		/* Writer: end */
+		goto no_top;
+	for (p=partial; p>chain && all_zeroes((u32*)p->bh->b_data,p->p); p--)
+		;
+	/*
+	 * OK, we've found the last block that must survive. The rest of our
+	 * branch should be detached before unlocking. However, if that rest
+	 * of branch is all ours and does not grow immediately from the inode
+	 * it's easier to cheat and just decrement partial->p.
+	 */
+	if (p == chain + k - 1 && p > chain) {
+		p->p--;
+	} else {
+		*top = *p->p;
+		*p->p = 0;
+	}
+	/* Writer: end */
+
+	while(partial > p)
+	{
+		brelse(partial->bh);
+		partial--;
+	}
+no_top:
+	return partial;
+}
+
+/**
+ *	ext2_free_data - free a list of data blocks
+ *	@inode:	inode we are dealing with
+ *	@p:	array of block numbers
+ *	@q:	points immediately past the end of array
+ *
+ *	We are freeing all blocks refered from that array (numbers are
+ *	stored as little-endian 32-bit) and updating @inode->i_blocks
+ *	appropriately.
+ */
+static inline void ext2_free_data(struct inode *inode, u32 *p, u32 *q)
+{
+	unsigned long block_to_free = 0, count = 0;
+	unsigned long nr;
+
+	for ( ; p < q ; p++) {
+		nr = le32_to_cpu(*p);
+		if (nr) {
+			*p = 0;
+			/* accumulate blocks to free if they're contiguous */
+			if (count == 0)
+				goto free_this;
+			else if (block_to_free == nr - count)
+				count++;
+			else {
+				mark_inode_dirty(inode);
+				ext2_free_blocks (inode, block_to_free, count);
+			free_this:
+				block_to_free = nr;
+				count = 1;
+			}
+		}
+	}
+	if (count > 0) {
+		mark_inode_dirty(inode);
+		ext2_free_blocks (inode, block_to_free, count);
+	}
+}
+
+/**
+ *	ext2_free_branches - free an array of branches
+ *	@inode:	inode we are dealing with
+ *	@p:	array of block numbers
+ *	@q:	pointer immediately past the end of array
+ *	@depth:	depth of the branches to free
+ *
+ *	We are freeing all blocks refered from these branches (numbers are
+ *	stored as little-endian 32-bit) and updating @inode->i_blocks
+ *	appropriately.
+ */
+static void ext2_free_branches(struct inode *inode, u32 *p, u32 *q, int depth)
+{
+	struct buffer_head * bh;
+	unsigned long nr;
+
+	if (depth--) {
+		int addr_per_block = EXT2_ADDR_PER_BLOCK(inode->i_sb);
+		for ( ; p < q ; p++) {
+			nr = le32_to_cpu(*p);
+			if (!nr)
+				continue;
+			*p = 0;
+			bh = sb_bread(inode->i_sb, nr);
+			/*
+			 * A read failure? Report error and clear slot
+			 * (should be rare).
+			 */ 
+			if (!bh) {
+				ext2_error(inode->i_sb, "ext2_free_branches",
+					"Read failure, inode=%ld, block=%ld",
+					inode->i_ino, nr);
+				continue;
+			}
+			ext2_free_branches(inode,
+					   (u32*)bh->b_data,
+					   (u32*)bh->b_data + addr_per_block,
+					   depth);
+			bforget(bh);
+			ext2_free_blocks(inode, nr, 1);
+			mark_inode_dirty(inode);
+		}
+	} else
+		ext2_free_data(inode, p, q);
+}
+
+void ext2_truncate (struct inode * inode)
+{
+	u32 *i_data = inode->u.ext2_i.i_data;
+	int addr_per_block = EXT2_ADDR_PER_BLOCK(inode->i_sb);
+	int offsets[4];
+	Indirect chain[4];
+	Indirect *partial;
+	int nr = 0;
+	int n;
+	long iblock;
+	unsigned blocksize;
+
+	if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
+	    S_ISLNK(inode->i_mode)))
+		return;
+	if (ext2_inode_is_fast_symlink(inode))
+		return;
+	if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
+		return;
+
+	ext2_discard_prealloc(inode);
+
+	blocksize = inode->i_sb->s_blocksize;
+	iblock = (inode->i_size + blocksize-1)
+					>> EXT2_BLOCK_SIZE_BITS(inode->i_sb);
+
+	block_truncate_page(inode->i_mapping, inode->i_size, ext2_get_block);
+
+	n = ext2_block_to_path(inode, iblock, offsets);
+	if (n == 0)
+		return;
+
+	if (n == 1) {
+		ext2_free_data(inode, i_data+offsets[0],
+					i_data + EXT2_NDIR_BLOCKS);
+		goto do_indirects;
+	}
+
+	partial = ext2_find_shared(inode, n, offsets, chain, &nr);
+	/* Kill the top of shared branch (already detached) */
+	if (nr) {
+		if (partial == chain)
+			mark_inode_dirty(inode);
+		else
+			mark_buffer_dirty_inode(partial->bh, inode);
+		ext2_free_branches(inode, &nr, &nr+1, (chain+n-1) - partial);
+	}
+	/* Clear the ends of indirect blocks on the shared branch */
+	while (partial > chain) {
+		ext2_free_branches(inode,
+				   partial->p + 1,
+				   (u32*)partial->bh->b_data + addr_per_block,
+				   (chain+n-1) - partial);
+		mark_buffer_dirty_inode(partial->bh, inode);
+		brelse (partial->bh);
+		partial--;
+	}
+do_indirects:
+	/* Kill the remaining (whole) subtrees */
+	switch (offsets[0]) {
+		default:
+			nr = i_data[EXT2_IND_BLOCK];
+			if (nr) {
+				i_data[EXT2_IND_BLOCK] = 0;
+				mark_inode_dirty(inode);
+				ext2_free_branches(inode, &nr, &nr+1, 1);
+			}
+		case EXT2_IND_BLOCK:
+			nr = i_data[EXT2_DIND_BLOCK];
+			if (nr) {
+				i_data[EXT2_DIND_BLOCK] = 0;
+				mark_inode_dirty(inode);
+				ext2_free_branches(inode, &nr, &nr+1, 2);
+			}
+		case EXT2_DIND_BLOCK:
+			nr = i_data[EXT2_TIND_BLOCK];
+			if (nr) {
+				i_data[EXT2_TIND_BLOCK] = 0;
+				mark_inode_dirty(inode);
+				ext2_free_branches(inode, &nr, &nr+1, 3);
+			}
+		case EXT2_TIND_BLOCK:
+			;
+	}
+	inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+	if (IS_SYNC(inode)) {
+		fsync_inode_buffers(inode);
+		ext2_sync_inode (inode);
+	} else {
+		mark_inode_dirty(inode);
+	}
+}
+
+void ext2_set_inode_flags(struct inode *inode)
+{
+	unsigned int flags = inode->u.ext2_i.i_flags;
+
+	inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME);
+	if (flags & EXT2_SYNC_FL)
+		inode->i_flags |= S_SYNC;
+	if (flags & EXT2_APPEND_FL)
+		inode->i_flags |= S_APPEND;
+	if (flags & EXT2_IMMUTABLE_FL)
+		inode->i_flags |= S_IMMUTABLE;
+	if (flags & EXT2_NOATIME_FL)
+		inode->i_flags |= S_NOATIME;
+}
+
+void ext2_read_inode (struct inode * inode)
+{
+	struct buffer_head * bh;
+	struct ext2_inode * raw_inode;
+	unsigned long block_group;
+	unsigned long group_desc;
+	unsigned long desc;
+	unsigned long block;
+	unsigned long offset;
+	struct ext2_group_desc * gdp;
+
+	if ((inode->i_ino != EXT2_ROOT_INO && inode->i_ino != EXT2_ACL_IDX_INO &&
+	     inode->i_ino != EXT2_ACL_DATA_INO &&
+	     inode->i_ino < EXT2_FIRST_INO(inode->i_sb)) ||
+	    inode->i_ino > le32_to_cpu(inode->i_sb->u.ext2_sb.s_es->s_inodes_count)) {
+		ext2_error (inode->i_sb, "ext2_read_inode",
+			    "bad inode number: %lu", inode->i_ino);
+		goto bad_inode;
+	}
+	block_group = (inode->i_ino - 1) / EXT2_INODES_PER_GROUP(inode->i_sb);
+	if (block_group >= inode->i_sb->u.ext2_sb.s_groups_count) {
+		ext2_error (inode->i_sb, "ext2_read_inode",
+			    "group >= groups count");
+		goto bad_inode;
+	}
+	group_desc = block_group >> EXT2_DESC_PER_BLOCK_BITS(inode->i_sb);
+	desc = block_group & (EXT2_DESC_PER_BLOCK(inode->i_sb) - 1);
+	bh = inode->i_sb->u.ext2_sb.s_group_desc[group_desc];
+	if (!bh) {
+		ext2_error (inode->i_sb, "ext2_read_inode",
+			    "Descriptor not loaded");
+		goto bad_inode;
+	}
+
+	gdp = (struct ext2_group_desc *) bh->b_data;
+	/*
+	 * Figure out the offset within the block group inode table
+	 */
+	offset = ((inode->i_ino - 1) % EXT2_INODES_PER_GROUP(inode->i_sb)) *
+		EXT2_INODE_SIZE(inode->i_sb);
+	block = le32_to_cpu(gdp[desc].bg_inode_table) +
+		(offset >> EXT2_BLOCK_SIZE_BITS(inode->i_sb));
+	if (!(bh = sb_bread(inode->i_sb, block))) {
+		ext2_error (inode->i_sb, "ext2_read_inode",
+			    "unable to read inode block - "
+			    "inode=%lu, block=%lu", inode->i_ino, block);
+		goto bad_inode;
+	}
+	offset &= (EXT2_BLOCK_SIZE(inode->i_sb) - 1);
+	raw_inode = (struct ext2_inode *) (bh->b_data + offset);
+
+	inode->i_mode = le16_to_cpu(raw_inode->i_mode);
+	inode->i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
+	inode->i_gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
+	if(!(test_opt (inode->i_sb, NO_UID32))) {
+		inode->i_uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
+		inode->i_gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
+	}
+	inode->i_nlink = le16_to_cpu(raw_inode->i_links_count);
+	inode->i_size = le32_to_cpu(raw_inode->i_size);
+	inode->i_atime = le32_to_cpu(raw_inode->i_atime);
+	inode->i_ctime = le32_to_cpu(raw_inode->i_ctime);
+	inode->i_mtime = le32_to_cpu(raw_inode->i_mtime);
+	inode->u.ext2_i.i_dtime = le32_to_cpu(raw_inode->i_dtime);
+	/* We now have enough fields to check if the inode was active or not.
+	 * This is needed because nfsd might try to access dead inodes
+	 * the test is that same one that e2fsck uses
+	 * NeilBrown 1999oct15
+	 */
+	if (inode->i_nlink == 0 && (inode->i_mode == 0 || inode->u.ext2_i.i_dtime)) {
+		/* this inode is deleted */
+		brelse (bh);
+		goto bad_inode;
+	}
+	inode->i_blksize = PAGE_SIZE;	/* This is the optimal IO size (for stat), not the fs block size */
+	inode->i_blocks = le32_to_cpu(raw_inode->i_blocks);
+	inode->i_version = ++event;
+	inode->u.ext2_i.i_flags = le32_to_cpu(raw_inode->i_flags);
+	inode->u.ext2_i.i_faddr = le32_to_cpu(raw_inode->i_faddr);
+	inode->u.ext2_i.i_frag_no = raw_inode->i_frag;
+	inode->u.ext2_i.i_frag_size = raw_inode->i_fsize;
+	inode->u.ext2_i.i_file_acl = le32_to_cpu(raw_inode->i_file_acl);
+	if (S_ISREG(inode->i_mode))
+		inode->i_size |= ((__u64)le32_to_cpu(raw_inode->i_size_high)) << 32;
+	else
+		inode->u.ext2_i.i_dir_acl = le32_to_cpu(raw_inode->i_dir_acl);
+	inode->i_generation = le32_to_cpu(raw_inode->i_generation);
+ 	inode->u.ext2_i.i_state = 0;
+	inode->u.ext2_i.i_prealloc_count = 0;
+	inode->u.ext2_i.i_block_group = block_group;
+
+	/*
+	 * NOTE! The in-memory inode i_data array is in little-endian order
+	 * even on big-endian machines: we do NOT byteswap the block numbers!
+	 */
+	for (block = 0; block < EXT2_N_BLOCKS; block++)
+		inode->u.ext2_i.i_data[block] = raw_inode->i_block[block];
+
+	if (inode->i_ino == EXT2_ACL_IDX_INO ||
+	    inode->i_ino == EXT2_ACL_DATA_INO)
+		/* Nothing to do */ ;
+	else if (S_ISREG(inode->i_mode)) {
+		inode->i_op = &ext2_file_inode_operations;
+		inode->i_fop = &ext2_file_operations;
+		inode->i_mapping->a_ops = &ext2_aops;
+	} else if (S_ISDIR(inode->i_mode)) {
+		inode->i_op = &ext2_dir_inode_operations;
+		inode->i_fop = &ext2_dir_operations;
+		inode->i_mapping->a_ops = &ext2_aops;
+	} else if (S_ISLNK(inode->i_mode)) {
+		if (ext2_inode_is_fast_symlink(inode))
+			inode->i_op = &ext2_fast_symlink_inode_operations;
+		else {
+			inode->i_op = &page_symlink_inode_operations;
+			inode->i_mapping->a_ops = &ext2_aops;
+		}
+	} else 
+		init_special_inode(inode, inode->i_mode,
+				   le32_to_cpu(raw_inode->i_block[0]));
+	brelse (bh);
+	inode->i_attr_flags = 0;
+	ext2_set_inode_flags(inode);
+	return;
+	
+bad_inode:
+	make_bad_inode(inode);
+	return;
+}
+
+static int ext2_update_inode(struct inode * inode, int do_sync)
+{
+	struct buffer_head * bh;
+	struct ext2_inode * raw_inode;
+	unsigned long block_group;
+	unsigned long group_desc;
+	unsigned long desc;
+	unsigned long block;
+	unsigned long offset;
+	int err = 0;
+	struct ext2_group_desc * gdp;
+
+	if ((inode->i_ino != EXT2_ROOT_INO &&
+	     inode->i_ino < EXT2_FIRST_INO(inode->i_sb)) ||
+	    inode->i_ino > le32_to_cpu(inode->i_sb->u.ext2_sb.s_es->s_inodes_count)) {
+		ext2_error (inode->i_sb, "ext2_write_inode",
+			    "bad inode number: %lu", inode->i_ino);
+		return -EIO;
+	}
+	block_group = (inode->i_ino - 1) / EXT2_INODES_PER_GROUP(inode->i_sb);
+	if (block_group >= inode->i_sb->u.ext2_sb.s_groups_count) {
+		ext2_error (inode->i_sb, "ext2_write_inode",
+			    "group >= groups count");
+		return -EIO;
+	}
+	group_desc = block_group >> EXT2_DESC_PER_BLOCK_BITS(inode->i_sb);
+	desc = block_group & (EXT2_DESC_PER_BLOCK(inode->i_sb) - 1);
+	bh = inode->i_sb->u.ext2_sb.s_group_desc[group_desc];
+	if (!bh) {
+		ext2_error (inode->i_sb, "ext2_write_inode",
+			    "Descriptor not loaded");
+		return -EIO;
+	}
+	gdp = (struct ext2_group_desc *) bh->b_data;
+	/*
+	 * Figure out the offset within the block group inode table
+	 */
+	offset = ((inode->i_ino - 1) % EXT2_INODES_PER_GROUP(inode->i_sb)) *
+		EXT2_INODE_SIZE(inode->i_sb);
+	block = le32_to_cpu(gdp[desc].bg_inode_table) +
+		(offset >> EXT2_BLOCK_SIZE_BITS(inode->i_sb));
+	if (!(bh = sb_bread(inode->i_sb, block))) {
+		ext2_error (inode->i_sb, "ext2_write_inode",
+			    "unable to read inode block - "
+			    "inode=%lu, block=%lu", inode->i_ino, block);
+		return -EIO;
+	}
+	offset &= EXT2_BLOCK_SIZE(inode->i_sb) - 1;
+	raw_inode = (struct ext2_inode *) (bh->b_data + offset);
+
+	/* For fields not tracked in the in-memory inode,
+	 * initialise them to zero for new inodes. */
+	if (inode->u.ext2_i.i_state & EXT2_STATE_NEW)
+		memset(raw_inode, 0, EXT2_SB(inode->i_sb)->s_inode_size);
+
+	raw_inode->i_mode = cpu_to_le16(inode->i_mode);
+	if(!(test_opt(inode->i_sb, NO_UID32))) {
+		raw_inode->i_uid_low = cpu_to_le16(low_16_bits(inode->i_uid));
+		raw_inode->i_gid_low = cpu_to_le16(low_16_bits(inode->i_gid));
+/*
+ * Fix up interoperability with old kernels. Otherwise, old inodes get
+ * re-used with the upper 16 bits of the uid/gid intact
+ */
+		if(!inode->u.ext2_i.i_dtime) {
+			raw_inode->i_uid_high = cpu_to_le16(high_16_bits(inode->i_uid));
+			raw_inode->i_gid_high = cpu_to_le16(high_16_bits(inode->i_gid));
+		} else {
+			raw_inode->i_uid_high = 0;
+			raw_inode->i_gid_high = 0;
+		}
+	} else {
+		raw_inode->i_uid_low = cpu_to_le16(fs_high2lowuid(inode->i_uid));
+		raw_inode->i_gid_low = cpu_to_le16(fs_high2lowgid(inode->i_gid));
+		raw_inode->i_uid_high = 0;
+		raw_inode->i_gid_high = 0;
+	}
+	raw_inode->i_links_count = cpu_to_le16(inode->i_nlink);
+	raw_inode->i_size = cpu_to_le32(inode->i_size);
+	raw_inode->i_atime = cpu_to_le32(inode->i_atime);
+	raw_inode->i_ctime = cpu_to_le32(inode->i_ctime);
+	raw_inode->i_mtime = cpu_to_le32(inode->i_mtime);
+	raw_inode->i_blocks = cpu_to_le32(inode->i_blocks);
+	raw_inode->i_dtime = cpu_to_le32(inode->u.ext2_i.i_dtime);
+	raw_inode->i_flags = cpu_to_le32(inode->u.ext2_i.i_flags);
+	raw_inode->i_faddr = cpu_to_le32(inode->u.ext2_i.i_faddr);
+	raw_inode->i_frag = inode->u.ext2_i.i_frag_no;
+	raw_inode->i_fsize = inode->u.ext2_i.i_frag_size;
+	raw_inode->i_file_acl = cpu_to_le32(inode->u.ext2_i.i_file_acl);
+	if (!S_ISREG(inode->i_mode))
+		raw_inode->i_dir_acl = cpu_to_le32(inode->u.ext2_i.i_dir_acl);
+	else {
+		raw_inode->i_size_high = cpu_to_le32(inode->i_size >> 32);
+		if (inode->i_size > 0x7fffffffULL) {
+			struct super_block *sb = inode->i_sb;
+			if (!EXT2_HAS_RO_COMPAT_FEATURE(sb,
+					EXT2_FEATURE_RO_COMPAT_LARGE_FILE) ||
+			    EXT2_SB(sb)->s_es->s_rev_level ==
+					cpu_to_le32(EXT2_GOOD_OLD_REV)) {
+			       /* If this is the first large file
+				* created, add a flag to the superblock.
+				*/
+				lock_kernel();
+				ext2_update_dynamic_rev(sb);
+				EXT2_SET_RO_COMPAT_FEATURE(sb,
+					EXT2_FEATURE_RO_COMPAT_LARGE_FILE);
+				unlock_kernel();
+				ext2_write_super(sb);
+			}
+		}
+	}
+	
+	raw_inode->i_generation = cpu_to_le32(inode->i_generation);
+	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
+		raw_inode->i_block[0] = cpu_to_le32(kdev_t_to_nr(inode->i_rdev));
+	else for (block = 0; block < EXT2_N_BLOCKS; block++)
+		raw_inode->i_block[block] = inode->u.ext2_i.i_data[block];
+	mark_buffer_dirty(bh);
+	if (do_sync) {
+		ll_rw_block (WRITE, 1, &bh);
+		wait_on_buffer (bh);
+		if (buffer_req(bh) && !buffer_uptodate(bh)) {
+			printk ("IO error syncing ext2 inode ["
+				"%s:%08lx]\n",
+				bdevname(inode->i_dev), inode->i_ino);
+			err = -EIO;
+		}
+	}
+	inode->u.ext2_i.i_state &= ~EXT2_STATE_NEW;
+	brelse (bh);
+	return err;
+}
+
+void ext2_write_inode (struct inode * inode, int wait)
+{
+	lock_kernel();
+	ext2_update_inode (inode, wait);
+	unlock_kernel();
+}
+
+int ext2_sync_inode (struct inode *inode)
+{
+	return ext2_update_inode (inode, 1);
+}
diff --git a/fs/ext2/ioctl.c b/fs/ext2/ioctl.c
new file mode 100644
index 00000000000000..0b4e80a3bc0760
--- /dev/null
+++ b/fs/ext2/ioctl.c
@@ -0,0 +1,76 @@
+/*
+ * linux/fs/ext2/ioctl.c
+ *
+ * Copyright (C) 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ */
+
+#include <linux/fs.h>
+#include <linux/ext2_fs.h>
+#include <linux/sched.h>
+#include <asm/uaccess.h>
+
+
+int ext2_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
+		unsigned long arg)
+{
+	unsigned int flags;
+
+	ext2_debug ("cmd = %u, arg = %lu\n", cmd, arg);
+
+	switch (cmd) {
+	case EXT2_IOC_GETFLAGS:
+		flags = inode->u.ext2_i.i_flags & EXT2_FL_USER_VISIBLE;
+		return put_user(flags, (int *) arg);
+	case EXT2_IOC_SETFLAGS: {
+		unsigned int oldflags;
+
+		if (IS_RDONLY(inode))
+			return -EROFS;
+
+		if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+			return -EACCES;
+
+		if (get_user(flags, (int *) arg))
+			return -EFAULT;
+
+		oldflags = inode->u.ext2_i.i_flags;
+
+		/*
+		 * The IMMUTABLE and APPEND_ONLY flags can only be changed by
+		 * the relevant capability.
+		 *
+		 * This test looks nicer. Thanks to Pauline Middelink
+		 */
+		if ((flags ^ oldflags) & (EXT2_APPEND_FL | EXT2_IMMUTABLE_FL)) {
+			if (!capable(CAP_LINUX_IMMUTABLE))
+				return -EPERM;
+		}
+
+		flags = flags & EXT2_FL_USER_MODIFIABLE;
+		flags |= oldflags & ~EXT2_FL_USER_MODIFIABLE;
+		inode->u.ext2_i.i_flags = flags;
+
+		ext2_set_inode_flags(inode);
+		inode->i_ctime = CURRENT_TIME;
+		mark_inode_dirty(inode);
+		return 0;
+	}
+	case EXT2_IOC_GETVERSION:
+		return put_user(inode->i_generation, (int *) arg);
+	case EXT2_IOC_SETVERSION:
+		if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+			return -EPERM;
+		if (IS_RDONLY(inode))
+			return -EROFS;
+		if (get_user(inode->i_generation, (int *) arg))
+			return -EFAULT;	
+		inode->i_ctime = CURRENT_TIME;
+		mark_inode_dirty(inode);
+		return 0;
+	default:
+		return -ENOTTY;
+	}
+}
diff --git a/fs/ext2/namei.c b/fs/ext2/namei.c
new file mode 100644
index 00000000000000..364deca4f89028
--- /dev/null
+++ b/fs/ext2/namei.c
@@ -0,0 +1,348 @@
+/*
+ * linux/fs/ext2/namei.c
+ *
+ * Rewrite to pagecache. Almost all code had been changed, so blame me
+ * if the things go wrong. Please, send bug reports to viro@math.psu.edu
+ *
+ * Stuff here is basically a glue between the VFS and generic UNIXish
+ * filesystem that keeps everything in pagecache. All knowledge of the
+ * directory layout is in fs/ext2/dir.c - it turned out to be easily separatable
+ * and it's easier to debug that way. In principle we might want to
+ * generalize that a bit and turn it into a library. Or not.
+ *
+ * The only non-static object here is ext2_dir_inode_operations.
+ *
+ * TODO: get rid of kmap() use, add readahead.
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ *  from
+ *
+ *  linux/fs/minix/namei.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  Big-endian to little-endian byte-swapping/bitmaps by
+ *        David S. Miller (davem@caip.rutgers.edu), 1995
+ */
+
+#include <linux/fs.h>
+#include <linux/ext2_fs.h>
+#include <linux/pagemap.h>
+
+/*
+ * Couple of helper functions - make the code slightly cleaner.
+ */
+
+static inline void ext2_inc_count(struct inode *inode)
+{
+	inode->i_nlink++;
+	mark_inode_dirty(inode);
+}
+
+static inline void ext2_dec_count(struct inode *inode)
+{
+	inode->i_nlink--;
+	mark_inode_dirty(inode);
+}
+
+static inline int ext2_add_nondir(struct dentry *dentry, struct inode *inode)
+{
+	int err = ext2_add_link(dentry, inode);
+	if (!err) {
+		d_instantiate(dentry, inode);
+		return 0;
+	}
+	ext2_dec_count(inode);
+	iput(inode);
+	return err;
+}
+
+/*
+ * Methods themselves.
+ */
+
+static struct dentry *ext2_lookup(struct inode * dir, struct dentry *dentry)
+{
+	struct inode * inode;
+	ino_t ino;
+	
+	if (dentry->d_name.len > EXT2_NAME_LEN)
+		return ERR_PTR(-ENAMETOOLONG);
+
+	ino = ext2_inode_by_name(dir, dentry);
+	inode = NULL;
+	if (ino) {
+		inode = iget(dir->i_sb, ino);
+		if (!inode) 
+			return ERR_PTR(-EACCES);
+	}
+	d_add(dentry, inode);
+	return NULL;
+}
+
+/*
+ * By the time this is called, we already have created
+ * the directory cache entry for the new file, but it
+ * is so far negative - it has no inode.
+ *
+ * If the create succeeds, we fill in the inode information
+ * with d_instantiate(). 
+ */
+static int ext2_create (struct inode * dir, struct dentry * dentry, int mode)
+{
+	struct inode * inode = ext2_new_inode (dir, mode);
+	int err = PTR_ERR(inode);
+	if (!IS_ERR(inode)) {
+		inode->i_op = &ext2_file_inode_operations;
+		inode->i_fop = &ext2_file_operations;
+		inode->i_mapping->a_ops = &ext2_aops;
+		mark_inode_dirty(inode);
+		err = ext2_add_nondir(dentry, inode);
+	}
+	return err;
+}
+
+static int ext2_mknod (struct inode * dir, struct dentry *dentry, int mode, int rdev)
+{
+	struct inode * inode = ext2_new_inode (dir, mode);
+	int err = PTR_ERR(inode);
+	if (!IS_ERR(inode)) {
+		init_special_inode(inode, mode, rdev);
+		mark_inode_dirty(inode);
+		err = ext2_add_nondir(dentry, inode);
+	}
+	return err;
+}
+
+static int ext2_symlink (struct inode * dir, struct dentry * dentry,
+	const char * symname)
+{
+	struct super_block * sb = dir->i_sb;
+	int err = -ENAMETOOLONG;
+	unsigned l = strlen(symname)+1;
+	struct inode * inode;
+
+	if (l > sb->s_blocksize)
+		goto out;
+
+	inode = ext2_new_inode (dir, S_IFLNK | S_IRWXUGO);
+	err = PTR_ERR(inode);
+	if (IS_ERR(inode))
+		goto out;
+
+	if (l > sizeof (inode->u.ext2_i.i_data)) {
+		/* slow symlink */
+		inode->i_op = &page_symlink_inode_operations;
+		inode->i_mapping->a_ops = &ext2_aops;
+		err = block_symlink(inode, symname, l);
+		if (err)
+			goto out_fail;
+	} else {
+		/* fast symlink */
+		inode->i_op = &ext2_fast_symlink_inode_operations;
+		memcpy((char*)&inode->u.ext2_i.i_data,symname,l);
+		inode->i_size = l-1;
+	}
+	mark_inode_dirty(inode);
+
+	err = ext2_add_nondir(dentry, inode);
+out:
+	return err;
+
+out_fail:
+	ext2_dec_count(inode);
+	iput (inode);
+	goto out;
+}
+
+static int ext2_link (struct dentry * old_dentry, struct inode * dir,
+	struct dentry *dentry)
+{
+	struct inode *inode = old_dentry->d_inode;
+
+	if (S_ISDIR(inode->i_mode))
+		return -EPERM;
+
+	if (inode->i_nlink >= EXT2_LINK_MAX)
+		return -EMLINK;
+
+	inode->i_ctime = CURRENT_TIME;
+	ext2_inc_count(inode);
+	atomic_inc(&inode->i_count);
+
+	return ext2_add_nondir(dentry, inode);
+}
+
+static int ext2_mkdir(struct inode * dir, struct dentry * dentry, int mode)
+{
+	struct inode * inode;
+	int err = -EMLINK;
+
+	if (dir->i_nlink >= EXT2_LINK_MAX)
+		goto out;
+
+	ext2_inc_count(dir);
+
+	inode = ext2_new_inode (dir, S_IFDIR | mode);
+	err = PTR_ERR(inode);
+	if (IS_ERR(inode))
+		goto out_dir;
+
+	inode->i_op = &ext2_dir_inode_operations;
+	inode->i_fop = &ext2_dir_operations;
+	inode->i_mapping->a_ops = &ext2_aops;
+
+	ext2_inc_count(inode);
+
+	err = ext2_make_empty(inode, dir);
+	if (err)
+		goto out_fail;
+
+	err = ext2_add_link(dentry, inode);
+	if (err)
+		goto out_fail;
+
+	d_instantiate(dentry, inode);
+out:
+	return err;
+
+out_fail:
+	ext2_dec_count(inode);
+	ext2_dec_count(inode);
+	iput(inode);
+out_dir:
+	ext2_dec_count(dir);
+	goto out;
+}
+
+static int ext2_unlink(struct inode * dir, struct dentry *dentry)
+{
+	struct inode * inode = dentry->d_inode;
+	struct ext2_dir_entry_2 * de;
+	struct page * page;
+	int err = -ENOENT;
+
+	de = ext2_find_entry (dir, dentry, &page);
+	if (!de)
+		goto out;
+
+	err = ext2_delete_entry (de, page);
+	if (err)
+		goto out;
+
+	inode->i_ctime = dir->i_ctime;
+	ext2_dec_count(inode);
+	err = 0;
+out:
+	return err;
+}
+
+static int ext2_rmdir (struct inode * dir, struct dentry *dentry)
+{
+	struct inode * inode = dentry->d_inode;
+	int err = -ENOTEMPTY;
+
+	if (ext2_empty_dir(inode)) {
+		err = ext2_unlink(dir, dentry);
+		if (!err) {
+			inode->i_size = 0;
+			ext2_dec_count(inode);
+			ext2_dec_count(dir);
+		}
+	}
+	return err;
+}
+
+static int ext2_rename (struct inode * old_dir, struct dentry * old_dentry,
+	struct inode * new_dir,	struct dentry * new_dentry )
+{
+	struct inode * old_inode = old_dentry->d_inode;
+	struct inode * new_inode = new_dentry->d_inode;
+	struct page * dir_page = NULL;
+	struct ext2_dir_entry_2 * dir_de = NULL;
+	struct page * old_page;
+	struct ext2_dir_entry_2 * old_de;
+	int err = -ENOENT;
+
+	old_de = ext2_find_entry (old_dir, old_dentry, &old_page);
+	if (!old_de)
+		goto out;
+
+	if (S_ISDIR(old_inode->i_mode)) {
+		err = -EIO;
+		dir_de = ext2_dotdot(old_inode, &dir_page);
+		if (!dir_de)
+			goto out_old;
+	}
+
+	if (new_inode) {
+		struct page *new_page;
+		struct ext2_dir_entry_2 *new_de;
+
+		err = -ENOTEMPTY;
+		if (dir_de && !ext2_empty_dir (new_inode))
+			goto out_dir;
+
+		err = -ENOENT;
+		new_de = ext2_find_entry (new_dir, new_dentry, &new_page);
+		if (!new_de)
+			goto out_dir;
+		ext2_inc_count(old_inode);
+		ext2_set_link(new_dir, new_de, new_page, old_inode);
+		new_inode->i_ctime = CURRENT_TIME;
+		if (dir_de)
+			new_inode->i_nlink--;
+		ext2_dec_count(new_inode);
+	} else {
+		if (dir_de) {
+			err = -EMLINK;
+			if (new_dir->i_nlink >= EXT2_LINK_MAX)
+				goto out_dir;
+		}
+		ext2_inc_count(old_inode);
+		err = ext2_add_link(new_dentry, old_inode);
+		if (err) {
+			ext2_dec_count(old_inode);
+			goto out_dir;
+		}
+		if (dir_de)
+			ext2_inc_count(new_dir);
+	}
+
+	ext2_delete_entry (old_de, old_page);
+	ext2_dec_count(old_inode);
+
+	if (dir_de) {
+		ext2_set_link(old_inode, dir_de, dir_page, new_dir);
+		ext2_dec_count(old_dir);
+	}
+	return 0;
+
+
+out_dir:
+	if (dir_de) {
+		kunmap(dir_page);
+		page_cache_release(dir_page);
+	}
+out_old:
+	kunmap(old_page);
+	page_cache_release(old_page);
+out:
+	return err;
+}
+
+struct inode_operations ext2_dir_inode_operations = {
+	create:		ext2_create,
+	lookup:		ext2_lookup,
+	link:		ext2_link,
+	unlink:		ext2_unlink,
+	symlink:	ext2_symlink,
+	mkdir:		ext2_mkdir,
+	rmdir:		ext2_rmdir,
+	mknod:		ext2_mknod,
+	rename:		ext2_rename,
+};
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
new file mode 100644
index 00000000000000..d510cc8d7de3aa
--- /dev/null
+++ b/fs/ext2/super.c
@@ -0,0 +1,854 @@
+/*
+ *  linux/fs/ext2/super.c
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ *  from
+ *
+ *  linux/fs/minix/inode.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  Big-endian to little-endian byte-swapping/bitmaps by
+ *        David S. Miller (davem@caip.rutgers.edu), 1995
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/fs.h>
+#include <linux/ext2_fs.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/locks.h>
+#include <linux/blkdev.h>
+#include <asm/uaccess.h>
+
+
+static void ext2_sync_super(struct super_block *sb,
+			    struct ext2_super_block *es);
+
+static char error_buf[1024];
+
+void ext2_error (struct super_block * sb, const char * function,
+		 const char * fmt, ...)
+{
+	va_list args;
+	struct ext2_super_block *es = EXT2_SB(sb)->s_es;
+
+	if (!(sb->s_flags & MS_RDONLY)) {
+		sb->u.ext2_sb.s_mount_state |= EXT2_ERROR_FS;
+		es->s_state =
+			cpu_to_le16(le16_to_cpu(es->s_state) | EXT2_ERROR_FS);
+		ext2_sync_super(sb, es);
+	}
+	va_start (args, fmt);
+	vsprintf (error_buf, fmt, args);
+	va_end (args);
+	if (test_opt (sb, ERRORS_PANIC) ||
+	    (le16_to_cpu(sb->u.ext2_sb.s_es->s_errors) == EXT2_ERRORS_PANIC &&
+	     !test_opt (sb, ERRORS_CONT) && !test_opt (sb, ERRORS_RO)))
+		panic ("EXT2-fs panic (device %s): %s: %s\n",
+		       bdevname(sb->s_dev), function, error_buf);
+	printk (KERN_CRIT "EXT2-fs error (device %s): %s: %s\n",
+		bdevname(sb->s_dev), function, error_buf);
+	if (test_opt (sb, ERRORS_RO) ||
+	    (le16_to_cpu(sb->u.ext2_sb.s_es->s_errors) == EXT2_ERRORS_RO &&
+	     !test_opt (sb, ERRORS_CONT) && !test_opt (sb, ERRORS_PANIC))) {
+		printk ("Remounting filesystem read-only\n");
+		sb->s_flags |= MS_RDONLY;
+	}
+}
+
+NORET_TYPE void ext2_panic (struct super_block * sb, const char * function,
+			    const char * fmt, ...)
+{
+	va_list args;
+
+	if (!(sb->s_flags & MS_RDONLY)) {
+		sb->u.ext2_sb.s_mount_state |= EXT2_ERROR_FS;
+		sb->u.ext2_sb.s_es->s_state =
+			cpu_to_le16(le16_to_cpu(sb->u.ext2_sb.s_es->s_state) | EXT2_ERROR_FS);
+		mark_buffer_dirty(sb->u.ext2_sb.s_sbh);
+		sb->s_dirt = 1;
+	}
+	va_start (args, fmt);
+	vsprintf (error_buf, fmt, args);
+	va_end (args);
+	sb->s_flags |= MS_RDONLY;
+	panic ("EXT2-fs panic (device %s): %s: %s\n",
+	       bdevname(sb->s_dev), function, error_buf);
+}
+
+void ext2_warning (struct super_block * sb, const char * function,
+		   const char * fmt, ...)
+{
+	va_list args;
+
+	va_start (args, fmt);
+	vsprintf (error_buf, fmt, args);
+	va_end (args);
+	printk (KERN_WARNING "EXT2-fs warning (device %s): %s: %s\n",
+		bdevname(sb->s_dev), function, error_buf);
+}
+
+void ext2_update_dynamic_rev(struct super_block *sb)
+{
+	struct ext2_super_block *es = EXT2_SB(sb)->s_es;
+
+	if (le32_to_cpu(es->s_rev_level) > EXT2_GOOD_OLD_REV)
+		return;
+
+	ext2_warning(sb, __FUNCTION__,
+		     "updating to rev %d because of new feature flag, "
+		     "running e2fsck is recommended",
+		     EXT2_DYNAMIC_REV);
+
+	es->s_first_ino = cpu_to_le32(EXT2_GOOD_OLD_FIRST_INO);
+	es->s_inode_size = cpu_to_le16(EXT2_GOOD_OLD_INODE_SIZE);
+	es->s_rev_level = cpu_to_le32(EXT2_DYNAMIC_REV);
+	/* leave es->s_feature_*compat flags alone */
+	/* es->s_uuid will be set by e2fsck if empty */
+
+	/*
+	 * The rest of the superblock fields should be zero, and if not it
+	 * means they are likely already in use, so leave them alone.  We
+	 * can leave it up to e2fsck to clean up any inconsistencies there.
+	 */
+}
+
+void ext2_put_super (struct super_block * sb)
+{
+	int db_count;
+	int i;
+
+	if (!(sb->s_flags & MS_RDONLY)) {
+		struct ext2_super_block *es = EXT2_SB(sb)->s_es;
+
+		es->s_state = le16_to_cpu(EXT2_SB(sb)->s_mount_state);
+		ext2_sync_super(sb, es);
+	}
+	db_count = EXT2_SB(sb)->s_gdb_count;
+	for (i = 0; i < db_count; i++)
+		if (sb->u.ext2_sb.s_group_desc[i])
+			brelse (sb->u.ext2_sb.s_group_desc[i]);
+	kfree(sb->u.ext2_sb.s_group_desc);
+	for (i = 0; i < EXT2_MAX_GROUP_LOADED; i++)
+		if (sb->u.ext2_sb.s_inode_bitmap[i])
+			brelse (sb->u.ext2_sb.s_inode_bitmap[i]);
+	for (i = 0; i < EXT2_MAX_GROUP_LOADED; i++)
+		if (sb->u.ext2_sb.s_block_bitmap[i])
+			brelse (sb->u.ext2_sb.s_block_bitmap[i]);
+	brelse (sb->u.ext2_sb.s_sbh);
+
+	return;
+}
+
+static struct super_operations ext2_sops = {
+	read_inode:	ext2_read_inode,
+	write_inode:	ext2_write_inode,
+	put_inode:	ext2_put_inode,
+	delete_inode:	ext2_delete_inode,
+	put_super:	ext2_put_super,
+	write_super:	ext2_write_super,
+	statfs:		ext2_statfs,
+	remount_fs:	ext2_remount,
+};
+
+/*
+ * This function has been shamelessly adapted from the msdos fs
+ */
+static int parse_options (char * options, unsigned long * sb_block,
+			  unsigned short *resuid, unsigned short * resgid,
+			  unsigned long * mount_options)
+{
+	char * this_char;
+	char * value;
+
+	if (!options)
+		return 1;
+	for (this_char = strtok (options, ",");
+	     this_char != NULL;
+	     this_char = strtok (NULL, ",")) {
+		if ((value = strchr (this_char, '=')) != NULL)
+			*value++ = 0;
+		if (!strcmp (this_char, "bsddf"))
+			clear_opt (*mount_options, MINIX_DF);
+		else if (!strcmp (this_char, "nouid32")) {
+			set_opt (*mount_options, NO_UID32);
+		}
+		else if (!strcmp (this_char, "check")) {
+			if (!value || !*value || !strcmp (value, "none"))
+				clear_opt (*mount_options, CHECK);
+			else
+#ifdef CONFIG_EXT2_CHECK
+				set_opt (*mount_options, CHECK);
+#else
+				printk("EXT2 Check option not supported\n");
+#endif
+		}
+		else if (!strcmp (this_char, "debug"))
+			set_opt (*mount_options, DEBUG);
+		else if (!strcmp (this_char, "errors")) {
+			if (!value || !*value) {
+				printk ("EXT2-fs: the errors option requires "
+					"an argument\n");
+				return 0;
+			}
+			if (!strcmp (value, "continue")) {
+				clear_opt (*mount_options, ERRORS_RO);
+				clear_opt (*mount_options, ERRORS_PANIC);
+				set_opt (*mount_options, ERRORS_CONT);
+			}
+			else if (!strcmp (value, "remount-ro")) {
+				clear_opt (*mount_options, ERRORS_CONT);
+				clear_opt (*mount_options, ERRORS_PANIC);
+				set_opt (*mount_options, ERRORS_RO);
+			}
+			else if (!strcmp (value, "panic")) {
+				clear_opt (*mount_options, ERRORS_CONT);
+				clear_opt (*mount_options, ERRORS_RO);
+				set_opt (*mount_options, ERRORS_PANIC);
+			}
+			else {
+				printk ("EXT2-fs: Invalid errors option: %s\n",
+					value);
+				return 0;
+			}
+		}
+		else if (!strcmp (this_char, "grpid") ||
+			 !strcmp (this_char, "bsdgroups"))
+			set_opt (*mount_options, GRPID);
+		else if (!strcmp (this_char, "minixdf"))
+			set_opt (*mount_options, MINIX_DF);
+		else if (!strcmp (this_char, "nocheck"))
+			clear_opt (*mount_options, CHECK);
+		else if (!strcmp (this_char, "nogrpid") ||
+			 !strcmp (this_char, "sysvgroups"))
+			clear_opt (*mount_options, GRPID);
+		else if (!strcmp (this_char, "resgid")) {
+			if (!value || !*value) {
+				printk ("EXT2-fs: the resgid option requires "
+					"an argument\n");
+				return 0;
+			}
+			*resgid = simple_strtoul (value, &value, 0);
+			if (*value) {
+				printk ("EXT2-fs: Invalid resgid option: %s\n",
+					value);
+				return 0;
+			}
+		}
+		else if (!strcmp (this_char, "resuid")) {
+			if (!value || !*value) {
+				printk ("EXT2-fs: the resuid option requires "
+					"an argument");
+				return 0;
+			}
+			*resuid = simple_strtoul (value, &value, 0);
+			if (*value) {
+				printk ("EXT2-fs: Invalid resuid option: %s\n",
+					value);
+				return 0;
+			}
+		}
+		else if (!strcmp (this_char, "sb")) {
+			if (!value || !*value) {
+				printk ("EXT2-fs: the sb option requires "
+					"an argument");
+				return 0;
+			}
+			*sb_block = simple_strtoul (value, &value, 0);
+			if (*value) {
+				printk ("EXT2-fs: Invalid sb option: %s\n",
+					value);
+				return 0;
+			}
+		}
+		/* Silently ignore the quota options */
+		else if (!strcmp (this_char, "grpquota")
+		         || !strcmp (this_char, "noquota")
+		         || !strcmp (this_char, "quota")
+		         || !strcmp (this_char, "usrquota"))
+			/* Don't do anything ;-) */ ;
+		else {
+			printk ("EXT2-fs: Unrecognized mount option %s\n", this_char);
+			return 0;
+		}
+	}
+	return 1;
+}
+
+static int ext2_setup_super (struct super_block * sb,
+			      struct ext2_super_block * es,
+			      int read_only)
+{
+	int res = 0;
+	if (le32_to_cpu(es->s_rev_level) > EXT2_MAX_SUPP_REV) {
+		printk ("EXT2-fs warning: revision level too high, "
+			"forcing read-only mode\n");
+		res = MS_RDONLY;
+	}
+	if (read_only)
+		return res;
+	if (!(sb->u.ext2_sb.s_mount_state & EXT2_VALID_FS))
+		printk ("EXT2-fs warning: mounting unchecked fs, "
+			"running e2fsck is recommended\n");
+	else if ((sb->u.ext2_sb.s_mount_state & EXT2_ERROR_FS))
+		printk ("EXT2-fs warning: mounting fs with errors, "
+			"running e2fsck is recommended\n");
+	else if ((__s16) le16_to_cpu(es->s_max_mnt_count) >= 0 &&
+		 le16_to_cpu(es->s_mnt_count) >=
+		 (unsigned short) (__s16) le16_to_cpu(es->s_max_mnt_count))
+		printk ("EXT2-fs warning: maximal mount count reached, "
+			"running e2fsck is recommended\n");
+	else if (le32_to_cpu(es->s_checkinterval) &&
+		(le32_to_cpu(es->s_lastcheck) + le32_to_cpu(es->s_checkinterval) <= CURRENT_TIME))
+		printk ("EXT2-fs warning: checktime reached, "
+			"running e2fsck is recommended\n");
+	if (!(__s16) le16_to_cpu(es->s_max_mnt_count))
+		es->s_max_mnt_count = (__s16) cpu_to_le16(EXT2_DFL_MAX_MNT_COUNT);
+	es->s_mnt_count=cpu_to_le16(le16_to_cpu(es->s_mnt_count) + 1);
+	ext2_write_super(sb);
+	if (test_opt (sb, DEBUG))
+		printk ("[EXT II FS %s, %s, bs=%lu, fs=%lu, gc=%lu, "
+			"bpg=%lu, ipg=%lu, mo=%04lx]\n",
+			EXT2FS_VERSION, EXT2FS_DATE, sb->s_blocksize,
+			sb->u.ext2_sb.s_frag_size,
+			sb->u.ext2_sb.s_groups_count,
+			EXT2_BLOCKS_PER_GROUP(sb),
+			EXT2_INODES_PER_GROUP(sb),
+			sb->u.ext2_sb.s_mount_opt);
+#ifdef CONFIG_EXT2_CHECK
+	if (test_opt (sb, CHECK)) {
+		ext2_check_blocks_bitmap (sb);
+		ext2_check_inodes_bitmap (sb);
+	}
+#endif
+	return res;
+}
+
+static int ext2_check_descriptors (struct super_block * sb)
+{
+	int i;
+	int desc_block = 0;
+	unsigned long block = le32_to_cpu(sb->u.ext2_sb.s_es->s_first_data_block);
+	struct ext2_group_desc * gdp = NULL;
+
+	ext2_debug ("Checking group descriptors");
+
+	for (i = 0; i < sb->u.ext2_sb.s_groups_count; i++)
+	{
+		if ((i % EXT2_DESC_PER_BLOCK(sb)) == 0)
+			gdp = (struct ext2_group_desc *) sb->u.ext2_sb.s_group_desc[desc_block++]->b_data;
+		if (le32_to_cpu(gdp->bg_block_bitmap) < block ||
+		    le32_to_cpu(gdp->bg_block_bitmap) >= block + EXT2_BLOCKS_PER_GROUP(sb))
+		{
+			ext2_error (sb, "ext2_check_descriptors",
+				    "Block bitmap for group %d"
+				    " not in group (block %lu)!",
+				    i, (unsigned long) le32_to_cpu(gdp->bg_block_bitmap));
+			return 0;
+		}
+		if (le32_to_cpu(gdp->bg_inode_bitmap) < block ||
+		    le32_to_cpu(gdp->bg_inode_bitmap) >= block + EXT2_BLOCKS_PER_GROUP(sb))
+		{
+			ext2_error (sb, "ext2_check_descriptors",
+				    "Inode bitmap for group %d"
+				    " not in group (block %lu)!",
+				    i, (unsigned long) le32_to_cpu(gdp->bg_inode_bitmap));
+			return 0;
+		}
+		if (le32_to_cpu(gdp->bg_inode_table) < block ||
+		    le32_to_cpu(gdp->bg_inode_table) + sb->u.ext2_sb.s_itb_per_group >=
+		    block + EXT2_BLOCKS_PER_GROUP(sb))
+		{
+			ext2_error (sb, "ext2_check_descriptors",
+				    "Inode table for group %d"
+				    " not in group (block %lu)!",
+				    i, (unsigned long) le32_to_cpu(gdp->bg_inode_table));
+			return 0;
+		}
+		block += EXT2_BLOCKS_PER_GROUP(sb);
+		gdp++;
+	}
+	return 1;
+}
+
+#define log2(n) ffz(~(n))
+ 
+/*
+ * Maximal file size.  There is a direct, and {,double-,triple-}indirect
+ * block limit, and also a limit of (2^32 - 1) 512-byte sectors in i_blocks.
+ * We need to be 1 filesystem block less than the 2^32 sector limit.
+ */
+static loff_t ext2_max_size(int bits)
+{
+	loff_t res = EXT2_NDIR_BLOCKS;
+	res += 1LL << (bits-2);
+	res += 1LL << (2*(bits-2));
+	res += 1LL << (3*(bits-2));
+	res <<= bits;
+	if (res > (512LL << 32) - (1 << bits))
+		res = (512LL << 32) - (1 << bits);
+	return res;
+}
+
+static unsigned long descriptor_loc(struct super_block *sb,
+				    unsigned long logic_sb_block,
+				    int nr)
+{
+	struct ext2_sb_info *sbi = EXT2_SB(sb);
+	unsigned long bg, first_data_block, first_meta_bg;
+	int has_super = 0;
+	
+	first_data_block = le32_to_cpu(sbi->s_es->s_first_data_block);
+	first_meta_bg = le32_to_cpu(sbi->s_es->s_first_meta_bg);
+
+	if (!EXT2_HAS_INCOMPAT_FEATURE(sb, EXT2_FEATURE_INCOMPAT_META_BG) ||
+	    nr < first_meta_bg)
+		return (logic_sb_block + nr + 1);
+	bg = sbi->s_desc_per_block * nr;
+	if (ext2_bg_has_super(sb, bg))
+		has_super = 1;
+	return (first_data_block + has_super + (bg * sbi->s_blocks_per_group));
+}
+
+struct super_block * ext2_read_super (struct super_block * sb, void * data,
+				      int silent)
+{
+	struct buffer_head * bh;
+  	struct ext2_sb_info * sbi = EXT2_SB(sb);
+	struct ext2_super_block * es;
+	unsigned long sb_block = 1;
+	unsigned short resuid = EXT2_DEF_RESUID;
+	unsigned short resgid = EXT2_DEF_RESGID;
+	unsigned long block;
+	unsigned long logic_sb_block;
+	unsigned long offset = 0;
+	kdev_t dev = sb->s_dev;
+	int blocksize = BLOCK_SIZE;
+	int db_count;
+	int i, j;
+
+	/*
+	 * See what the current blocksize for the device is, and
+	 * use that as the blocksize.  Otherwise (or if the blocksize
+	 * is smaller than the default) use the default.
+	 * This is important for devices that have a hardware
+	 * sectorsize that is larger than the default.
+	 */
+	blocksize = get_hardsect_size(dev);
+	if(blocksize < BLOCK_SIZE )
+	    blocksize = BLOCK_SIZE;
+
+	sb->u.ext2_sb.s_mount_opt = 0;
+	if (!parse_options ((char *) data, &sb_block, &resuid, &resgid,
+	    &sb->u.ext2_sb.s_mount_opt)) {
+		return NULL;
+	}
+
+	if (set_blocksize(dev, blocksize) < 0) {
+		printk ("EXT2-fs: unable to set blocksize %d\n", blocksize);
+		return NULL;
+	}
+	sb->s_blocksize = blocksize;
+
+	/*
+	 * If the superblock doesn't start on a sector boundary,
+	 * calculate the offset.  FIXME(eric) this doesn't make sense
+	 * that we would have to do this.
+	 */
+	if (blocksize != BLOCK_SIZE) {
+		logic_sb_block = (sb_block*BLOCK_SIZE) / blocksize;
+		offset = (sb_block*BLOCK_SIZE) % blocksize;
+	} else {
+		logic_sb_block = sb_block;
+	}
+
+	if (!(bh = sb_bread(sb, logic_sb_block))) {
+		printk ("EXT2-fs: unable to read superblock\n");
+		return NULL;
+	}
+	/*
+	 * Note: s_es must be initialized as soon as possible because
+	 *       some ext2 macro-instructions depend on its value
+	 */
+	es = (struct ext2_super_block *) (((char *)bh->b_data) + offset);
+	sb->u.ext2_sb.s_es = es;
+	sb->s_magic = le16_to_cpu(es->s_magic);
+	if (sb->s_magic != EXT2_SUPER_MAGIC) {
+		if (!silent)
+			printk ("VFS: Can't find ext2 filesystem on dev %s.\n",
+				bdevname(dev));
+		goto failed_mount;
+	}
+	if (le32_to_cpu(es->s_rev_level) == EXT2_GOOD_OLD_REV &&
+	    (EXT2_HAS_COMPAT_FEATURE(sb, ~0U) ||
+	     EXT2_HAS_RO_COMPAT_FEATURE(sb, ~0U) ||
+	     EXT2_HAS_INCOMPAT_FEATURE(sb, ~0U)))
+		printk("EXT2-fs warning: feature flags set on rev 0 fs, "
+		       "running e2fsck is recommended\n");
+	/*
+	 * Check feature flags regardless of the revision level, since we
+	 * previously didn't change the revision level when setting the flags,
+	 * so there is a chance incompat flags are set on a rev 0 filesystem.
+	 */
+	if ((i = EXT2_HAS_INCOMPAT_FEATURE(sb, ~EXT2_FEATURE_INCOMPAT_SUPP))) {
+		printk("EXT2-fs: %s: couldn't mount because of "
+		       "unsupported optional features (%x).\n",
+		       bdevname(dev), i);
+		goto failed_mount;
+	}
+	if (!(sb->s_flags & MS_RDONLY) &&
+	    (i = EXT2_HAS_RO_COMPAT_FEATURE(sb, ~EXT2_FEATURE_RO_COMPAT_SUPP))){
+		printk("EXT2-fs: %s: couldn't mount RDWR because of "
+		       "unsupported optional features (%x).\n",
+		       bdevname(dev), i);
+		goto failed_mount;
+	}
+	if (EXT2_HAS_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_HAS_JOURNAL))
+		ext2_warning(sb, __FUNCTION__,
+			"mounting ext3 filesystem as ext2\n");
+	sb->s_blocksize_bits =
+		le32_to_cpu(EXT2_SB(sb)->s_es->s_log_block_size) + 10;
+	sb->s_blocksize = 1 << sb->s_blocksize_bits;
+
+	sb->s_maxbytes = ext2_max_size(sb->s_blocksize_bits);
+
+	/* If the blocksize doesn't match, re-read the thing.. */
+	if (sb->s_blocksize != blocksize) {
+		blocksize = sb->s_blocksize;
+		brelse(bh);
+
+		if (set_blocksize(dev, blocksize) < 0) {
+			printk(KERN_ERR "EXT2-fs: blocksize too small for device.\n");
+			return NULL;
+		}
+
+		logic_sb_block = (sb_block*BLOCK_SIZE) / blocksize;
+		offset = (sb_block*BLOCK_SIZE) % blocksize;
+		bh = sb_bread(sb, logic_sb_block);
+		if(!bh) {
+			printk("EXT2-fs: Couldn't read superblock on "
+			       "2nd try.\n");
+			goto failed_mount;
+		}
+		es = (struct ext2_super_block *) (((char *)bh->b_data) + offset);
+		sb->u.ext2_sb.s_es = es;
+		if (es->s_magic != le16_to_cpu(EXT2_SUPER_MAGIC)) {
+			printk ("EXT2-fs: Magic mismatch, very weird !\n");
+			goto failed_mount;
+		}
+	}
+
+	if (le32_to_cpu(es->s_rev_level) == EXT2_GOOD_OLD_REV) {
+		sbi->s_inode_size = EXT2_GOOD_OLD_INODE_SIZE;
+		sbi->s_first_ino = EXT2_GOOD_OLD_FIRST_INO;
+	} else {
+		sbi->s_inode_size = le16_to_cpu(es->s_inode_size);
+		sbi->s_first_ino = le32_to_cpu(es->s_first_ino);
+		if ((sbi->s_inode_size < EXT2_GOOD_OLD_INODE_SIZE) ||
+		    (sbi->s_inode_size & (sbi->s_inode_size - 1)) ||
+		    (sbi->s_inode_size > blocksize)) {
+			printk ("EXT2-fs: unsupported inode size: %d\n",
+				sbi->s_inode_size);
+			goto failed_mount;
+		}
+	}
+	sb->u.ext2_sb.s_frag_size = EXT2_MIN_FRAG_SIZE <<
+				   le32_to_cpu(es->s_log_frag_size);
+	if (sb->u.ext2_sb.s_frag_size)
+		sb->u.ext2_sb.s_frags_per_block = sb->s_blocksize /
+						  sb->u.ext2_sb.s_frag_size;
+	else
+		sb->s_magic = 0;
+	sb->u.ext2_sb.s_blocks_per_group = le32_to_cpu(es->s_blocks_per_group);
+	sb->u.ext2_sb.s_frags_per_group = le32_to_cpu(es->s_frags_per_group);
+	sb->u.ext2_sb.s_inodes_per_group = le32_to_cpu(es->s_inodes_per_group);
+	sb->u.ext2_sb.s_inodes_per_block = sb->s_blocksize /
+					   EXT2_INODE_SIZE(sb);
+	sb->u.ext2_sb.s_itb_per_group = sb->u.ext2_sb.s_inodes_per_group /
+				        sb->u.ext2_sb.s_inodes_per_block;
+	sb->u.ext2_sb.s_desc_per_block = sb->s_blocksize /
+					 sizeof (struct ext2_group_desc);
+	sb->u.ext2_sb.s_sbh = bh;
+	if (resuid != EXT2_DEF_RESUID)
+		sb->u.ext2_sb.s_resuid = resuid;
+	else
+		sb->u.ext2_sb.s_resuid = le16_to_cpu(es->s_def_resuid);
+	if (resgid != EXT2_DEF_RESGID)
+		sb->u.ext2_sb.s_resgid = resgid;
+	else
+		sb->u.ext2_sb.s_resgid = le16_to_cpu(es->s_def_resgid);
+	sb->u.ext2_sb.s_mount_state = le16_to_cpu(es->s_state);
+	sb->u.ext2_sb.s_addr_per_block_bits =
+		log2 (EXT2_ADDR_PER_BLOCK(sb));
+	sb->u.ext2_sb.s_desc_per_block_bits =
+		log2 (EXT2_DESC_PER_BLOCK(sb));
+	if (sb->s_magic != EXT2_SUPER_MAGIC) {
+		if (!silent)
+			printk ("VFS: Can't find an ext2 filesystem on dev "
+				"%s.\n",
+				bdevname(dev));
+		goto failed_mount;
+	}
+	if (sb->s_blocksize != bh->b_size) {
+		if (!silent)
+			printk ("VFS: Unsupported blocksize on dev "
+				"%s.\n", bdevname(dev));
+		goto failed_mount;
+	}
+
+	if (sb->s_blocksize != sb->u.ext2_sb.s_frag_size) {
+		printk ("EXT2-fs: fragsize %lu != blocksize %lu (not supported yet)\n",
+			sb->u.ext2_sb.s_frag_size, sb->s_blocksize);
+		goto failed_mount;
+	}
+
+	if (sb->u.ext2_sb.s_blocks_per_group > sb->s_blocksize * 8) {
+		printk ("EXT2-fs: #blocks per group too big: %lu\n",
+			sb->u.ext2_sb.s_blocks_per_group);
+		goto failed_mount;
+	}
+	if (sb->u.ext2_sb.s_frags_per_group > sb->s_blocksize * 8) {
+		printk ("EXT2-fs: #fragments per group too big: %lu\n",
+			sb->u.ext2_sb.s_frags_per_group);
+		goto failed_mount;
+	}
+	if (sb->u.ext2_sb.s_inodes_per_group > sb->s_blocksize * 8) {
+		printk ("EXT2-fs: #inodes per group too big: %lu\n",
+			sb->u.ext2_sb.s_inodes_per_group);
+		goto failed_mount;
+	}
+
+	sb->u.ext2_sb.s_groups_count = (le32_to_cpu(es->s_blocks_count) -
+				        le32_to_cpu(es->s_first_data_block) +
+				       EXT2_BLOCKS_PER_GROUP(sb) - 1) /
+				       EXT2_BLOCKS_PER_GROUP(sb);
+	db_count = (sb->u.ext2_sb.s_groups_count + EXT2_DESC_PER_BLOCK(sb) - 1) /
+		   EXT2_DESC_PER_BLOCK(sb);
+	sb->u.ext2_sb.s_group_desc = kmalloc (db_count * sizeof (struct buffer_head *), GFP_KERNEL);
+	if (sb->u.ext2_sb.s_group_desc == NULL) {
+		printk ("EXT2-fs: not enough memory\n");
+		goto failed_mount;
+	}
+	for (i = 0; i < db_count; i++) {
+		block = descriptor_loc(sb, logic_sb_block, i);
+		sbi->s_group_desc[i] = sb_bread(sb, block);
+		if (!sbi->s_group_desc[i]) {
+			for (j = 0; j < i; j++)
+				brelse (sbi->s_group_desc[j]);
+			kfree(sbi->s_group_desc);
+			printk ("EXT2-fs: unable to read group descriptors\n");
+			goto failed_mount;
+		}
+	}
+	if (!ext2_check_descriptors (sb)) {
+		printk ("EXT2-fs: group descriptors corrupted!\n");
+		db_count = i;
+		goto failed_mount2;
+	}
+	for (i = 0; i < EXT2_MAX_GROUP_LOADED; i++) {
+		sb->u.ext2_sb.s_inode_bitmap_number[i] = 0;
+		sb->u.ext2_sb.s_inode_bitmap[i] = NULL;
+		sb->u.ext2_sb.s_block_bitmap_number[i] = 0;
+		sb->u.ext2_sb.s_block_bitmap[i] = NULL;
+	}
+	sb->u.ext2_sb.s_loaded_inode_bitmaps = 0;
+	sb->u.ext2_sb.s_loaded_block_bitmaps = 0;
+	sb->u.ext2_sb.s_gdb_count = db_count;
+	/*
+	 * set up enough so that it can read an inode
+	 */
+	sb->s_op = &ext2_sops;
+	sb->s_root = d_alloc_root(iget(sb, EXT2_ROOT_INO));
+	if (!sb->s_root || !S_ISDIR(sb->s_root->d_inode->i_mode) ||
+	    !sb->s_root->d_inode->i_blocks || !sb->s_root->d_inode->i_size) {
+		if (sb->s_root) {
+			dput(sb->s_root);
+			sb->s_root = NULL;
+			printk(KERN_ERR "EXT2-fs: corrupt root inode, run e2fsck\n");
+		} else
+			printk(KERN_ERR "EXT2-fs: get root inode failed\n");
+		goto failed_mount2;
+	}
+	ext2_setup_super (sb, es, sb->s_flags & MS_RDONLY);
+	return sb;
+failed_mount2:
+	for (i = 0; i < db_count; i++)
+		brelse(sb->u.ext2_sb.s_group_desc[i]);
+	kfree(sb->u.ext2_sb.s_group_desc);
+failed_mount:
+	brelse(bh);
+	return NULL;
+}
+
+static void ext2_commit_super (struct super_block * sb,
+			       struct ext2_super_block * es)
+{
+	es->s_wtime = cpu_to_le32(CURRENT_TIME);
+	mark_buffer_dirty(sb->u.ext2_sb.s_sbh);
+	sb->s_dirt = 0;
+}
+
+static void ext2_sync_super(struct super_block *sb, struct ext2_super_block *es)
+{
+	es->s_wtime = cpu_to_le32(CURRENT_TIME);
+	mark_buffer_dirty(EXT2_SB(sb)->s_sbh);
+	ll_rw_block(WRITE, 1, &EXT2_SB(sb)->s_sbh);
+	wait_on_buffer(EXT2_SB(sb)->s_sbh);
+	sb->s_dirt = 0;
+}
+
+/*
+ * In the second extended file system, it is not necessary to
+ * write the super block since we use a mapping of the
+ * disk super block in a buffer.
+ *
+ * However, this function is still used to set the fs valid
+ * flags to 0.  We need to set this flag to 0 since the fs
+ * may have been checked while mounted and e2fsck may have
+ * set s_state to EXT2_VALID_FS after some corrections.
+ */
+
+void ext2_write_super (struct super_block * sb)
+{
+	struct ext2_super_block * es;
+
+	if (!(sb->s_flags & MS_RDONLY)) {
+		es = sb->u.ext2_sb.s_es;
+
+		if (le16_to_cpu(es->s_state) & EXT2_VALID_FS) {
+			ext2_debug ("setting valid to 0\n");
+			es->s_state = cpu_to_le16(le16_to_cpu(es->s_state) &
+						  ~EXT2_VALID_FS);
+			es->s_mtime = cpu_to_le32(CURRENT_TIME);
+			ext2_sync_super(sb, es);
+		} else
+			ext2_commit_super (sb, es);
+	}
+	sb->s_dirt = 0;
+}
+
+int ext2_remount (struct super_block * sb, int * flags, char * data)
+{
+	struct ext2_super_block * es;
+	unsigned short resuid = sb->u.ext2_sb.s_resuid;
+	unsigned short resgid = sb->u.ext2_sb.s_resgid;
+	unsigned long new_mount_opt;
+	unsigned long tmp;
+
+	/*
+	 * Allow the "check" option to be passed as a remount option.
+	 */
+	new_mount_opt = sb->u.ext2_sb.s_mount_opt;
+	if (!parse_options (data, &tmp, &resuid, &resgid,
+			    &new_mount_opt))
+		return -EINVAL;
+
+	sb->u.ext2_sb.s_mount_opt = new_mount_opt;
+	sb->u.ext2_sb.s_resuid = resuid;
+	sb->u.ext2_sb.s_resgid = resgid;
+	es = sb->u.ext2_sb.s_es;
+	if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
+		return 0;
+	if (*flags & MS_RDONLY) {
+		if (le16_to_cpu(es->s_state) & EXT2_VALID_FS ||
+		    !(sb->u.ext2_sb.s_mount_state & EXT2_VALID_FS))
+			return 0;
+		/*
+		 * OK, we are remounting a valid rw partition rdonly, so set
+		 * the rdonly flag and then mark the partition as valid again.
+		 */
+		es->s_state = cpu_to_le16(sb->u.ext2_sb.s_mount_state);
+		es->s_mtime = cpu_to_le32(CURRENT_TIME);
+	} else {
+		int ret;
+		if ((ret = EXT2_HAS_RO_COMPAT_FEATURE(sb,
+					       ~EXT2_FEATURE_RO_COMPAT_SUPP))) {
+			printk("EXT2-fs: %s: couldn't remount RDWR because of "
+			       "unsupported optional features (%x).\n",
+			       bdevname(sb->s_dev), ret);
+			return -EROFS;
+		}
+		/*
+		 * Mounting a RDONLY partition read-write, so reread and
+		 * store the current valid flag.  (It may have been changed
+		 * by e2fsck since we originally mounted the partition.)
+		 */
+		sb->u.ext2_sb.s_mount_state = le16_to_cpu(es->s_state);
+		if (!ext2_setup_super (sb, es, 0))
+			sb->s_flags &= ~MS_RDONLY;
+	}
+	ext2_sync_super(sb, es);
+	return 0;
+}
+
+int ext2_statfs (struct super_block * sb, struct statfs * buf)
+{
+	unsigned long overhead;
+	int i;
+
+	if (test_opt (sb, MINIX_DF))
+		overhead = 0;
+	else {
+		/*
+		 * Compute the overhead (FS structures)
+		 */
+
+		/*
+		 * All of the blocks before first_data_block are
+		 * overhead
+		 */
+		overhead = le32_to_cpu(sb->u.ext2_sb.s_es->s_first_data_block);
+
+		/*
+		 * Add the overhead attributed to the superblock and
+		 * block group descriptors.  If the sparse superblocks
+		 * feature is turned on, then not all groups have this.
+		 */
+		for (i = 0; i < EXT2_SB(sb)->s_groups_count; i++)
+			overhead += ext2_bg_has_super(sb, i) +
+				ext2_bg_num_gdb(sb, i);
+
+		/*
+		 * Every block group has an inode bitmap, a block
+		 * bitmap, and an inode table.
+		 */
+		overhead += (sb->u.ext2_sb.s_groups_count *
+			     (2 + sb->u.ext2_sb.s_itb_per_group));
+	}
+
+	buf->f_type = EXT2_SUPER_MAGIC;
+	buf->f_bsize = sb->s_blocksize;
+	buf->f_blocks = le32_to_cpu(sb->u.ext2_sb.s_es->s_blocks_count) - overhead;
+	buf->f_bfree = ext2_count_free_blocks (sb);
+	buf->f_bavail = buf->f_bfree - le32_to_cpu(sb->u.ext2_sb.s_es->s_r_blocks_count);
+	if (buf->f_bfree < le32_to_cpu(sb->u.ext2_sb.s_es->s_r_blocks_count))
+		buf->f_bavail = 0;
+	buf->f_files = le32_to_cpu(sb->u.ext2_sb.s_es->s_inodes_count);
+	buf->f_ffree = ext2_count_free_inodes (sb);
+	buf->f_namelen = EXT2_NAME_LEN;
+	return 0;
+}
+
+static DECLARE_FSTYPE_DEV(ext2_fs_type, "ext2", ext2_read_super);
+
+static int __init init_ext2_fs(void)
+{
+        return register_filesystem(&ext2_fs_type);
+}
+
+static void __exit exit_ext2_fs(void)
+{
+	unregister_filesystem(&ext2_fs_type);
+}
+
+EXPORT_NO_SYMBOLS;
+
+module_init(init_ext2_fs)
+module_exit(exit_ext2_fs)
diff --git a/fs/ext2/symlink.c b/fs/ext2/symlink.c
new file mode 100644
index 00000000000000..05a4e585a8eea0
--- /dev/null
+++ b/fs/ext2/symlink.c
@@ -0,0 +1,38 @@
+/*
+ *  linux/fs/ext2/symlink.c
+ *
+ * Only fast symlinks left here - the rest is done by generic code. AV, 1999
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ *  from
+ *
+ *  linux/fs/minix/symlink.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  ext2 symlink handling code
+ */
+
+#include <linux/fs.h>
+#include <linux/ext2_fs.h>
+
+static int ext2_readlink(struct dentry *dentry, char *buffer, int buflen)
+{
+	char *s = (char *)dentry->d_inode->u.ext2_i.i_data;
+	return vfs_readlink(dentry, buffer, buflen, s);
+}
+
+static int ext2_follow_link(struct dentry *dentry, struct nameidata *nd)
+{
+	char *s = (char *)dentry->d_inode->u.ext2_i.i_data;
+	return vfs_follow_link(nd, s);
+}
+
+struct inode_operations ext2_fast_symlink_inode_operations = {
+	readlink:	ext2_readlink,
+	follow_link:	ext2_follow_link,
+};
diff --git a/fs/ext3/Makefile b/fs/ext3/Makefile
new file mode 100644
index 00000000000000..68cb4861815cf0
--- /dev/null
+++ b/fs/ext3/Makefile
@@ -0,0 +1,16 @@
+#
+# Makefile for the linux ext2-filesystem routines.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile...
+
+O_TARGET := ext3.o
+
+obj-y    := balloc.o bitmap.o dir.o file.o fsync.o ialloc.o inode.o \
+		ioctl.o namei.o super.o symlink.o
+obj-m    := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c
new file mode 100644
index 00000000000000..b9b03ab4c9edcc
--- /dev/null
+++ b/fs/ext3/balloc.c
@@ -0,0 +1,1009 @@
+/*
+ *  linux/fs/ext3/balloc.c
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ *  Enhanced block allocation by Stephen Tweedie (sct@redhat.com), 1993
+ *  Big-endian to little-endian byte-swapping/bitmaps by
+ *        David S. Miller (davem@caip.rutgers.edu), 1995
+ */
+
+#include <linux/config.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/jbd.h>
+#include <linux/ext3_fs.h>
+#include <linux/ext3_jbd.h>
+#include <linux/locks.h>
+#include <linux/quotaops.h>
+
+/*
+ * balloc.c contains the blocks allocation and deallocation routines
+ */
+
+/*
+ * The free blocks are managed by bitmaps.  A file system contains several
+ * blocks groups.  Each group contains 1 bitmap block for blocks, 1 bitmap
+ * block for inodes, N blocks for the inode table and data blocks.
+ *
+ * The file system contains group descriptors which are located after the
+ * super block.  Each descriptor contains the number of the bitmap block and
+ * the free blocks count in the block.  The descriptors are loaded in memory
+ * when a file system is mounted (see ext3_read_super).
+ */
+
+
+#define in_range(b, first, len)	((b) >= (first) && (b) <= (first) + (len) - 1)
+
+struct ext3_group_desc * ext3_get_group_desc(struct super_block * sb,
+					     unsigned int block_group,
+					     struct buffer_head ** bh)
+{
+	unsigned long group_desc;
+	unsigned long desc;
+	struct ext3_group_desc * gdp;
+
+	if (block_group >= sb->u.ext3_sb.s_groups_count) {
+		ext3_error (sb, "ext3_get_group_desc",
+			    "block_group >= groups_count - "
+			    "block_group = %d, groups_count = %lu",
+			    block_group, sb->u.ext3_sb.s_groups_count);
+
+		return NULL;
+	}
+	
+	group_desc = block_group / EXT3_DESC_PER_BLOCK(sb);
+	desc = block_group % EXT3_DESC_PER_BLOCK(sb);
+	if (!sb->u.ext3_sb.s_group_desc[group_desc]) {
+		ext3_error (sb, "ext3_get_group_desc",
+			    "Group descriptor not loaded - "
+			    "block_group = %d, group_desc = %lu, desc = %lu",
+			     block_group, group_desc, desc);
+		return NULL;
+	}
+	
+	gdp = (struct ext3_group_desc *) 
+	      sb->u.ext3_sb.s_group_desc[group_desc]->b_data;
+	if (bh)
+		*bh = sb->u.ext3_sb.s_group_desc[group_desc];
+	return gdp + desc;
+}
+
+/*
+ * Read the bitmap for a given block_group, reading into the specified 
+ * slot in the superblock's bitmap cache.
+ *
+ * Return >=0 on success or a -ve error code.
+ */
+
+static int read_block_bitmap (struct super_block * sb,
+			       unsigned int block_group,
+			       unsigned long bitmap_nr)
+{
+	struct ext3_group_desc * gdp;
+	struct buffer_head * bh = NULL;
+	int retval = -EIO;
+	
+	gdp = ext3_get_group_desc (sb, block_group, NULL);
+	if (!gdp)
+		goto error_out;
+	retval = 0;
+	bh = sb_bread(sb, le32_to_cpu(gdp->bg_block_bitmap));
+	if (!bh) {
+		ext3_error (sb, "read_block_bitmap",
+			    "Cannot read block bitmap - "
+			    "block_group = %d, block_bitmap = %lu",
+			    block_group, (unsigned long) gdp->bg_block_bitmap);
+		retval = -EIO;
+	}
+	/*
+	 * On IO error, just leave a zero in the superblock's block pointer for
+	 * this group.  The IO will be retried next time.
+	 */
+error_out:
+	sb->u.ext3_sb.s_block_bitmap_number[bitmap_nr] = block_group;
+	sb->u.ext3_sb.s_block_bitmap[bitmap_nr] = bh;
+	return retval;
+}
+
+/*
+ * load_block_bitmap loads the block bitmap for a blocks group
+ *
+ * It maintains a cache for the last bitmaps loaded.  This cache is managed
+ * with a LRU algorithm.
+ *
+ * Notes:
+ * 1/ There is one cache per mounted file system.
+ * 2/ If the file system contains less than EXT3_MAX_GROUP_LOADED groups,
+ *    this function reads the bitmap without maintaining a LRU cache.
+ * 
+ * Return the slot used to store the bitmap, or a -ve error code.
+ */
+static int __load_block_bitmap (struct super_block * sb,
+			        unsigned int block_group)
+{
+	int i, j, retval = 0;
+	unsigned long block_bitmap_number;
+	struct buffer_head * block_bitmap;
+
+	if (block_group >= sb->u.ext3_sb.s_groups_count)
+		ext3_panic (sb, "load_block_bitmap",
+			    "block_group >= groups_count - "
+			    "block_group = %d, groups_count = %lu",
+			    block_group, sb->u.ext3_sb.s_groups_count);
+
+	if (sb->u.ext3_sb.s_groups_count <= EXT3_MAX_GROUP_LOADED) {
+		if (sb->u.ext3_sb.s_block_bitmap[block_group]) {
+			if (sb->u.ext3_sb.s_block_bitmap_number[block_group] ==
+			    block_group)
+				return block_group;
+			ext3_error (sb, "__load_block_bitmap",
+				    "block_group != block_bitmap_number");
+		}
+		retval = read_block_bitmap (sb, block_group, block_group);
+		if (retval < 0)
+			return retval;
+		return block_group;
+	}
+
+	for (i = 0; i < sb->u.ext3_sb.s_loaded_block_bitmaps &&
+		    sb->u.ext3_sb.s_block_bitmap_number[i] != block_group; i++)
+		;
+	if (i < sb->u.ext3_sb.s_loaded_block_bitmaps &&
+  	    sb->u.ext3_sb.s_block_bitmap_number[i] == block_group) {
+		block_bitmap_number = sb->u.ext3_sb.s_block_bitmap_number[i];
+		block_bitmap = sb->u.ext3_sb.s_block_bitmap[i];
+		for (j = i; j > 0; j--) {
+			sb->u.ext3_sb.s_block_bitmap_number[j] =
+				sb->u.ext3_sb.s_block_bitmap_number[j - 1];
+			sb->u.ext3_sb.s_block_bitmap[j] =
+				sb->u.ext3_sb.s_block_bitmap[j - 1];
+		}
+		sb->u.ext3_sb.s_block_bitmap_number[0] = block_bitmap_number;
+		sb->u.ext3_sb.s_block_bitmap[0] = block_bitmap;
+
+		/*
+		 * There's still one special case here --- if block_bitmap == 0
+		 * then our last attempt to read the bitmap failed and we have
+		 * just ended up caching that failure.  Try again to read it.
+		 */
+		if (!block_bitmap)
+			retval = read_block_bitmap (sb, block_group, 0);
+	} else {
+		if (sb->u.ext3_sb.s_loaded_block_bitmaps<EXT3_MAX_GROUP_LOADED)
+			sb->u.ext3_sb.s_loaded_block_bitmaps++;
+		else
+			brelse (sb->u.ext3_sb.s_block_bitmap
+					[EXT3_MAX_GROUP_LOADED - 1]);
+		for (j = sb->u.ext3_sb.s_loaded_block_bitmaps - 1;
+					j > 0;  j--) {
+			sb->u.ext3_sb.s_block_bitmap_number[j] =
+				sb->u.ext3_sb.s_block_bitmap_number[j - 1];
+			sb->u.ext3_sb.s_block_bitmap[j] =
+				sb->u.ext3_sb.s_block_bitmap[j - 1];
+		}
+		retval = read_block_bitmap (sb, block_group, 0);
+	}
+	return retval;
+}
+
+/*
+ * Load the block bitmap for a given block group.  First of all do a couple
+ * of fast lookups for common cases and then pass the request onto the guts
+ * of the bitmap loader.
+ *
+ * Return the slot number of the group in the superblock bitmap cache's on
+ * success, or a -ve error code.
+ *
+ * There is still one inconsistency here --- if the number of groups in this
+ * filesystems is <= EXT3_MAX_GROUP_LOADED, then we have no way of 
+ * differentiating between a group for which we have never performed a bitmap
+ * IO request, and a group for which the last bitmap read request failed.
+ */
+static inline int load_block_bitmap (struct super_block * sb,
+				     unsigned int block_group)
+{
+	int slot;
+	
+	/*
+	 * Do the lookup for the slot.  First of all, check if we're asking
+	 * for the same slot as last time, and did we succeed that last time?
+	 */
+	if (sb->u.ext3_sb.s_loaded_block_bitmaps > 0 &&
+	    sb->u.ext3_sb.s_block_bitmap_number[0] == block_group &&
+	    sb->u.ext3_sb.s_block_bitmap[0]) {
+		return 0;
+	}
+	/*
+	 * Or can we do a fast lookup based on a loaded group on a filesystem
+	 * small enough to be mapped directly into the superblock?
+	 */
+	else if (sb->u.ext3_sb.s_groups_count <= EXT3_MAX_GROUP_LOADED && 
+		 sb->u.ext3_sb.s_block_bitmap_number[block_group]==block_group
+			&& sb->u.ext3_sb.s_block_bitmap[block_group]) {
+		slot = block_group;
+	}
+	/*
+	 * If not, then do a full lookup for this block group.
+	 */
+	else {
+		slot = __load_block_bitmap (sb, block_group);
+	}
+
+	/*
+	 * <0 means we just got an error
+	 */
+	if (slot < 0)
+		return slot;
+	
+	/*
+	 * If it's a valid slot, we may still have cached a previous IO error,
+	 * in which case the bh in the superblock cache will be zero.
+	 */
+	if (!sb->u.ext3_sb.s_block_bitmap[slot])
+		return -EIO;
+	
+	/*
+	 * Must have been read in OK to get this far.
+	 */
+	return slot;
+}
+
+/* Free given blocks, update quota and i_blocks field */
+void ext3_free_blocks (handle_t *handle, struct inode * inode,
+			unsigned long block, unsigned long count)
+{
+	struct buffer_head *bitmap_bh;
+	struct buffer_head *gd_bh;
+	unsigned long block_group;
+	unsigned long bit;
+	unsigned long i;
+	int bitmap_nr;
+	unsigned long overflow;
+	struct super_block * sb;
+	struct ext3_group_desc * gdp;
+	struct ext3_super_block * es;
+	int err = 0, ret;
+	int dquot_freed_blocks = 0;
+
+	sb = inode->i_sb;
+	if (!sb) {
+		printk ("ext3_free_blocks: nonexistent device");
+		return;
+	}
+	lock_super (sb);
+	es = sb->u.ext3_sb.s_es;
+	if (block < le32_to_cpu(es->s_first_data_block) ||
+	    block + count < block ||
+	    (block + count) > le32_to_cpu(es->s_blocks_count)) {
+		ext3_error (sb, "ext3_free_blocks",
+			    "Freeing blocks not in datazone - "
+			    "block = %lu, count = %lu", block, count);
+		goto error_return;
+	}
+
+	ext3_debug ("freeing block %lu\n", block);
+
+do_more:
+	overflow = 0;
+	block_group = (block - le32_to_cpu(es->s_first_data_block)) /
+		      EXT3_BLOCKS_PER_GROUP(sb);
+	bit = (block - le32_to_cpu(es->s_first_data_block)) %
+		      EXT3_BLOCKS_PER_GROUP(sb);
+	/*
+	 * Check to see if we are freeing blocks across a group
+	 * boundary.
+	 */
+	if (bit + count > EXT3_BLOCKS_PER_GROUP(sb)) {
+		overflow = bit + count - EXT3_BLOCKS_PER_GROUP(sb);
+		count -= overflow;
+	}
+	bitmap_nr = load_block_bitmap (sb, block_group);
+	if (bitmap_nr < 0)
+		goto error_return;
+	
+	bitmap_bh = sb->u.ext3_sb.s_block_bitmap[bitmap_nr];
+	gdp = ext3_get_group_desc (sb, block_group, &gd_bh);
+	if (!gdp)
+		goto error_return;
+
+	/*
+	 * We are about to start releasing blocks in the bitmap,
+	 * so we need undo access.
+	 */
+	/* @@@ check errors */
+	BUFFER_TRACE(bitmap_bh, "getting undo access");
+	err = ext3_journal_get_undo_access(handle, bitmap_bh);
+	if (err)
+		goto error_return;
+	
+	/*
+	 * We are about to modify some metadata.  Call the journal APIs
+	 * to unshare ->b_data if a currently-committing transaction is
+	 * using it
+	 */
+	BUFFER_TRACE(gd_bh, "get_write_access");
+	err = ext3_journal_get_write_access(handle, gd_bh);	
+	if (err)
+		goto error_return;
+
+	BUFFER_TRACE(sb->u.ext3_sb.s_sbh, "get_write_access");
+	err = ext3_journal_get_write_access(handle, sb->u.ext3_sb.s_sbh);
+	if (err)
+		goto error_return;
+
+	for (i = 0; i < count; i++, block++) {
+		if (block == le32_to_cpu(gdp->bg_block_bitmap) ||
+		    block == le32_to_cpu(gdp->bg_inode_bitmap) ||
+		    in_range(block, le32_to_cpu(gdp->bg_inode_table),
+			     EXT3_SB(sb)->s_itb_per_group)) {
+			ext3_error(sb, __FUNCTION__,
+				   "Freeing block in system zone - block = %lu",
+				   block);
+			continue;
+		}
+
+		/*
+		 * An HJ special.  This is expensive...
+		 */
+#ifdef CONFIG_JBD_DEBUG
+		{
+			struct buffer_head *debug_bh;
+			debug_bh = sb_get_hash_table(sb, block);
+			if (debug_bh) {
+				BUFFER_TRACE(debug_bh, "Deleted!");
+				if (!bh2jh(bitmap_bh)->b_committed_data)
+					BUFFER_TRACE(debug_bh,
+						"No commited data in bitmap");
+				BUFFER_TRACE2(debug_bh, bitmap_bh, "bitmap");
+				__brelse(debug_bh);
+			}
+		}
+#endif
+		BUFFER_TRACE(bitmap_bh, "clear bit");
+		if (!ext3_clear_bit (bit + i, bitmap_bh->b_data)) {
+			ext3_error(sb, __FUNCTION__,
+				   "bit already cleared for block %lu", block);
+			BUFFER_TRACE(bitmap_bh, "bit already cleared");
+		} else {
+			dquot_freed_blocks++;
+			gdp->bg_free_blocks_count =
+			  cpu_to_le16(le16_to_cpu(gdp->bg_free_blocks_count)+1);
+			es->s_free_blocks_count =
+			  cpu_to_le32(le32_to_cpu(es->s_free_blocks_count)+1);
+		}
+		/* @@@ This prevents newly-allocated data from being
+		 * freed and then reallocated within the same
+		 * transaction. 
+		 * 
+		 * Ideally we would want to allow that to happen, but to
+		 * do so requires making journal_forget() capable of
+		 * revoking the queued write of a data block, which
+		 * implies blocking on the journal lock.  *forget()
+		 * cannot block due to truncate races.
+		 *
+		 * Eventually we can fix this by making journal_forget()
+		 * return a status indicating whether or not it was able
+		 * to revoke the buffer.  On successful revoke, it is
+		 * safe not to set the allocation bit in the committed
+		 * bitmap, because we know that there is no outstanding
+		 * activity on the buffer any more and so it is safe to
+		 * reallocate it.  
+		 */
+		BUFFER_TRACE(bitmap_bh, "clear in b_committed_data");
+		J_ASSERT_BH(bitmap_bh,
+				bh2jh(bitmap_bh)->b_committed_data != NULL);
+		ext3_set_bit(bit + i, bh2jh(bitmap_bh)->b_committed_data);
+	}
+
+	/* We dirtied the bitmap block */
+	BUFFER_TRACE(bitmap_bh, "dirtied bitmap block");
+	err = ext3_journal_dirty_metadata(handle, bitmap_bh);
+
+	/* And the group descriptor block */
+	BUFFER_TRACE(gd_bh, "dirtied group descriptor block");
+	ret = ext3_journal_dirty_metadata(handle, gd_bh);
+	if (!err) err = ret;
+
+	/* And the superblock */
+	BUFFER_TRACE(sb->u.ext3_sb.s_sbh, "dirtied superblock");
+	ret = ext3_journal_dirty_metadata(handle, sb->u.ext3_sb.s_sbh);
+	if (!err) err = ret;
+
+	if (overflow && !err) {
+		count = overflow;
+		goto do_more;
+	}
+	sb->s_dirt = 1;
+error_return:
+	ext3_std_error(sb, err);
+	unlock_super(sb);
+	if (dquot_freed_blocks)
+		DQUOT_FREE_BLOCK(inode, dquot_freed_blocks);
+	return;
+}
+
+/* For ext3 allocations, we must not reuse any blocks which are
+ * allocated in the bitmap buffer's "last committed data" copy.  This
+ * prevents deletes from freeing up the page for reuse until we have
+ * committed the delete transaction.
+ *
+ * If we didn't do this, then deleting something and reallocating it as
+ * data would allow the old block to be overwritten before the
+ * transaction committed (because we force data to disk before commit).
+ * This would lead to corruption if we crashed between overwriting the
+ * data and committing the delete. 
+ *
+ * @@@ We may want to make this allocation behaviour conditional on
+ * data-writes at some point, and disable it for metadata allocations or
+ * sync-data inodes.
+ */
+static int ext3_test_allocatable(int nr, struct buffer_head *bh)
+{
+	if (ext3_test_bit(nr, bh->b_data))
+		return 0;
+	if (!buffer_jbd(bh) || !bh2jh(bh)->b_committed_data)
+		return 1;
+	return !ext3_test_bit(nr, bh2jh(bh)->b_committed_data);
+}
+
+/*
+ * Find an allocatable block in a bitmap.  We honour both the bitmap and
+ * its last-committed copy (if that exists), and perform the "most
+ * appropriate allocation" algorithm of looking for a free block near
+ * the initial goal; then for a free byte somewhere in the bitmap; then
+ * for any free bit in the bitmap.
+ */
+static int find_next_usable_block(int start,
+			struct buffer_head *bh, int maxblocks)
+{
+	int here, next;
+	char *p, *r;
+	
+	if (start > 0) {
+		/*
+		 * The goal was occupied; search forward for a free 
+		 * block within the next XX blocks.
+		 *
+		 * end_goal is more or less random, but it has to be
+		 * less than EXT3_BLOCKS_PER_GROUP. Aligning up to the
+		 * next 64-bit boundary is simple..
+		 */
+		int end_goal = (start + 63) & ~63;
+		here = ext3_find_next_zero_bit(bh->b_data, end_goal, start);
+		if (here < end_goal && ext3_test_allocatable(here, bh))
+			return here;
+		
+		ext3_debug ("Bit not found near goal\n");
+		
+	}
+	
+	here = start;
+	if (here < 0)
+		here = 0;
+	
+	/*
+	 * There has been no free block found in the near vicinity of
+	 * the goal: do a search forward through the block groups,
+	 * searching in each group first for an entire free byte in the
+	 * bitmap and then for any free bit.
+	 * 
+	 * Search first in the remainder of the current group 
+	 */
+	p = ((char *) bh->b_data) + (here >> 3);
+	r = memscan(p, 0, (maxblocks - here + 7) >> 3);
+	next = (r - ((char *) bh->b_data)) << 3;
+	
+	if (next < maxblocks && ext3_test_allocatable(next, bh))
+		return next;
+	
+	/* The bitmap search --- search forward alternately
+	 * through the actual bitmap and the last-committed copy
+	 * until we find a bit free in both. */
+
+	while (here < maxblocks) {
+		next  = ext3_find_next_zero_bit ((unsigned long *) bh->b_data, 
+						 maxblocks, here);
+		if (next >= maxblocks)
+			return -1;
+		if (ext3_test_allocatable(next, bh))
+			return next;
+
+		J_ASSERT_BH(bh, bh2jh(bh)->b_committed_data);
+		here = ext3_find_next_zero_bit
+			((unsigned long *) bh2jh(bh)->b_committed_data, 
+			 maxblocks, next);
+	}
+	return -1;
+}
+
+/*
+ * ext3_new_block uses a goal block to assist allocation.  If the goal is
+ * free, or there is a free block within 32 blocks of the goal, that block
+ * is allocated.  Otherwise a forward search is made for a free block; within 
+ * each block group the search first looks for an entire free byte in the block
+ * bitmap, and then for any free bit if that fails.
+ * This function also updates quota and i_blocks field.
+ */
+int ext3_new_block (handle_t *handle, struct inode * inode,
+		unsigned long goal, u32 * prealloc_count,
+		u32 * prealloc_block, int * errp)
+{
+	struct buffer_head * bh, *bhtmp;
+	struct buffer_head * bh2;
+#if 0
+	char * p, * r;
+#endif
+	int i, j, k, tmp, alloctmp;
+	int bitmap_nr;
+	int fatal = 0, err;
+	int performed_allocation = 0;
+	struct super_block * sb;
+	struct ext3_group_desc * gdp;
+	struct ext3_super_block * es;
+#ifdef EXT3FS_DEBUG
+	static int goal_hits = 0, goal_attempts = 0;
+#endif
+	*errp = -ENOSPC;
+	sb = inode->i_sb;
+	if (!sb) {
+		printk ("ext3_new_block: nonexistent device");
+		return 0;
+	}
+
+	/*
+	 * Check quota for allocation of this block.
+	 */
+	if (DQUOT_ALLOC_BLOCK(inode, 1)) {
+		*errp = -EDQUOT;
+		return 0;
+	}
+
+	lock_super (sb);
+	es = sb->u.ext3_sb.s_es;
+	if (le32_to_cpu(es->s_free_blocks_count) <=
+			le32_to_cpu(es->s_r_blocks_count) &&
+	    ((sb->u.ext3_sb.s_resuid != current->fsuid) &&
+	     (sb->u.ext3_sb.s_resgid == 0 ||
+	      !in_group_p (sb->u.ext3_sb.s_resgid)) && 
+	     !capable(CAP_SYS_RESOURCE)))
+		goto out;
+
+	ext3_debug ("goal=%lu.\n", goal);
+
+repeat:
+	/*
+	 * First, test whether the goal block is free.
+	 */
+	if (goal < le32_to_cpu(es->s_first_data_block) ||
+	    goal >= le32_to_cpu(es->s_blocks_count))
+		goal = le32_to_cpu(es->s_first_data_block);
+	i = (goal - le32_to_cpu(es->s_first_data_block)) /
+			EXT3_BLOCKS_PER_GROUP(sb);
+	gdp = ext3_get_group_desc (sb, i, &bh2);
+	if (!gdp)
+		goto io_error;
+
+	if (le16_to_cpu(gdp->bg_free_blocks_count) > 0) {
+		j = ((goal - le32_to_cpu(es->s_first_data_block)) %
+				EXT3_BLOCKS_PER_GROUP(sb));
+#ifdef EXT3FS_DEBUG
+		if (j)
+			goal_attempts++;
+#endif
+		bitmap_nr = load_block_bitmap (sb, i);
+		if (bitmap_nr < 0)
+			goto io_error;
+		
+		bh = sb->u.ext3_sb.s_block_bitmap[bitmap_nr];
+
+		ext3_debug ("goal is at %d:%d.\n", i, j);
+
+		if (ext3_test_allocatable(j, bh)) {
+#ifdef EXT3FS_DEBUG
+			goal_hits++;
+			ext3_debug ("goal bit allocated.\n");
+#endif
+			goto got_block;
+		}
+
+		j = find_next_usable_block(j, bh, EXT3_BLOCKS_PER_GROUP(sb));
+		if (j >= 0)
+			goto search_back;
+	}
+
+	ext3_debug ("Bit not found in block group %d.\n", i);
+
+	/*
+	 * Now search the rest of the groups.  We assume that 
+	 * i and gdp correctly point to the last group visited.
+	 */
+	for (k = 0; k < sb->u.ext3_sb.s_groups_count; k++) {
+		i++;
+		if (i >= sb->u.ext3_sb.s_groups_count)
+			i = 0;
+		gdp = ext3_get_group_desc (sb, i, &bh2);
+		if (!gdp) {
+			*errp = -EIO;
+			goto out;
+		}
+		if (le16_to_cpu(gdp->bg_free_blocks_count) > 0) {
+			bitmap_nr = load_block_bitmap (sb, i);
+			if (bitmap_nr < 0)
+				goto io_error;
+	
+			bh = sb->u.ext3_sb.s_block_bitmap[bitmap_nr];
+			j = find_next_usable_block(-1, bh, 
+						   EXT3_BLOCKS_PER_GROUP(sb));
+			if (j >= 0) 
+				goto search_back;
+		}
+	}
+
+	/* No space left on the device */
+	goto out;
+
+search_back:
+	/* 
+	 * We have succeeded in finding a free byte in the block
+	 * bitmap.  Now search backwards up to 7 bits to find the
+	 * start of this group of free blocks.
+	 */
+	for (	k = 0;
+		k < 7 && j > 0 && ext3_test_allocatable(j - 1, bh);
+		k++, j--)
+		;
+	
+got_block:
+
+	ext3_debug ("using block group %d(%d)\n", i, gdp->bg_free_blocks_count);
+
+	/* Make sure we use undo access for the bitmap, because it is
+           critical that we do the frozen_data COW on bitmap buffers in
+           all cases even if the buffer is in BJ_Forget state in the
+           committing transaction.  */
+	BUFFER_TRACE(bh, "get undo access for marking new block");
+	fatal = ext3_journal_get_undo_access(handle, bh);
+	if (fatal) goto out;
+	
+	BUFFER_TRACE(bh2, "get_write_access");
+	fatal = ext3_journal_get_write_access(handle, bh2);
+	if (fatal) goto out;
+
+	BUFFER_TRACE(sb->u.ext3_sb.s_sbh, "get_write_access");
+	fatal = ext3_journal_get_write_access(handle, sb->u.ext3_sb.s_sbh);
+	if (fatal) goto out;
+
+	tmp = j + i * EXT3_BLOCKS_PER_GROUP(sb)
+				+ le32_to_cpu(es->s_first_data_block);
+
+	if (tmp == le32_to_cpu(gdp->bg_block_bitmap) ||
+	    tmp == le32_to_cpu(gdp->bg_inode_bitmap) ||
+	    in_range (tmp, le32_to_cpu(gdp->bg_inode_table),
+		      EXT3_SB(sb)->s_itb_per_group)) {
+		ext3_error(sb, __FUNCTION__,
+			   "Allocating block in system zone - block = %u", tmp);
+
+		/* Note: This will potentially use up one of the handle's
+		 * buffer credits.  Normally we have way too many credits,
+		 * so that is OK.  In _very_ rare cases it might not be OK.
+		 * We will trigger an assertion if we run out of credits,
+		 * and we will have to do a full fsck of the filesystem -
+		 * better than randomly corrupting filesystem metadata.
+		 */
+		ext3_set_bit(j, bh->b_data);
+		goto repeat;
+	}
+
+
+	/* The superblock lock should guard against anybody else beating
+	 * us to this point! */
+	J_ASSERT_BH(bh, !ext3_test_bit(j, bh->b_data));
+	BUFFER_TRACE(bh, "setting bitmap bit");
+	ext3_set_bit(j, bh->b_data);
+	performed_allocation = 1;
+
+#ifdef CONFIG_JBD_DEBUG
+	{
+		struct buffer_head *debug_bh;
+
+		/* Record bitmap buffer state in the newly allocated block */
+		debug_bh = sb_get_hash_table(sb, tmp);
+		if (debug_bh) {
+			BUFFER_TRACE(debug_bh, "state when allocated");
+			BUFFER_TRACE2(debug_bh, bh, "bitmap state");
+			brelse(debug_bh);
+		}
+	}
+#endif
+	if (buffer_jbd(bh) && bh2jh(bh)->b_committed_data)
+		J_ASSERT_BH(bh, !ext3_test_bit(j, bh2jh(bh)->b_committed_data));
+	bhtmp = bh;
+	alloctmp = j;
+
+	ext3_debug ("found bit %d\n", j);
+
+	/*
+	 * Do block preallocation now if required.
+	 */
+#ifdef EXT3_PREALLOCATE
+	/*
+	 * akpm: this is not enabled for ext3.  Need to use
+	 * ext3_test_allocatable()
+	 */
+	/* Writer: ->i_prealloc* */
+	if (prealloc_count && !*prealloc_count) {
+		int	prealloc_goal;
+		unsigned long next_block = tmp + 1;
+
+		prealloc_goal = es->s_prealloc_blocks ?
+			es->s_prealloc_blocks : EXT3_DEFAULT_PREALLOC_BLOCKS;
+
+		*prealloc_block = next_block;
+		/* Writer: end */
+		for (k = 1;
+		     k < prealloc_goal && (j + k) < EXT3_BLOCKS_PER_GROUP(sb);
+		     k++, next_block++) {
+			if (DQUOT_PREALLOC_BLOCK(inode, 1))
+				break;
+			/* Writer: ->i_prealloc* */
+			if (*prealloc_block + *prealloc_count != next_block ||
+			    ext3_set_bit (j + k, bh->b_data)) {
+				/* Writer: end */
+				DQUOT_FREE_BLOCK(inode, 1);
+ 				break;
+			}
+			(*prealloc_count)++;
+			/* Writer: end */
+		}	
+		/*
+		 * As soon as we go for per-group spinlocks we'll need these
+		 * done inside the loop above.
+		 */
+		gdp->bg_free_blocks_count =
+			cpu_to_le16(le16_to_cpu(gdp->bg_free_blocks_count) -
+			       (k - 1));
+		es->s_free_blocks_count =
+			cpu_to_le32(le32_to_cpu(es->s_free_blocks_count) -
+			       (k - 1));
+		ext3_debug ("Preallocated a further %lu bits.\n",
+			       (k - 1));
+	}
+#endif
+
+	j = tmp;
+
+	BUFFER_TRACE(bh, "journal_dirty_metadata for bitmap block");
+	err = ext3_journal_dirty_metadata(handle, bh);
+	if (!fatal) fatal = err;
+	
+	if (j >= le32_to_cpu(es->s_blocks_count)) {
+		ext3_error (sb, "ext3_new_block",
+			    "block(%d) >= blocks count(%d) - "
+			    "block_group = %d, es == %p ",j,
+			le32_to_cpu(es->s_blocks_count), i, es);
+		goto out;
+	}
+
+	/*
+	 * It is up to the caller to add the new buffer to a journal
+	 * list of some description.  We don't know in advance whether
+	 * the caller wants to use it as metadata or data.
+	 */
+
+	ext3_debug ("allocating block %d. "
+		    "Goal hits %d of %d.\n", j, goal_hits, goal_attempts);
+
+	gdp->bg_free_blocks_count =
+			cpu_to_le16(le16_to_cpu(gdp->bg_free_blocks_count) - 1);
+	es->s_free_blocks_count =
+			cpu_to_le32(le32_to_cpu(es->s_free_blocks_count) - 1);
+
+	BUFFER_TRACE(bh2, "journal_dirty_metadata for group descriptor");
+	err = ext3_journal_dirty_metadata(handle, bh2);
+	if (!fatal) fatal = err;
+	
+	BUFFER_TRACE(bh, "journal_dirty_metadata for superblock");
+	err = ext3_journal_dirty_metadata(handle, sb->u.ext3_sb.s_sbh);
+	if (!fatal) fatal = err;
+
+	sb->s_dirt = 1;
+	if (fatal)
+		goto out;
+
+	unlock_super (sb);
+	*errp = 0;
+	return j;
+	
+io_error:
+	*errp = -EIO;
+out:
+	if (fatal) {
+		*errp = fatal;
+		ext3_std_error(sb, fatal);
+	}
+	unlock_super (sb);
+	/*
+	 * Undo the block allocation
+	 */
+	if (!performed_allocation)
+		DQUOT_FREE_BLOCK(inode, 1);
+	return 0;
+	
+}
+
+unsigned long ext3_count_free_blocks (struct super_block * sb)
+{
+#ifdef EXT3FS_DEBUG
+	struct ext3_super_block * es;
+	unsigned long desc_count, bitmap_count, x;
+	int bitmap_nr;
+	struct ext3_group_desc * gdp;
+	int i;
+	
+	lock_super (sb);
+	es = sb->u.ext3_sb.s_es;
+	desc_count = 0;
+	bitmap_count = 0;
+	gdp = NULL;
+	for (i = 0; i < sb->u.ext3_sb.s_groups_count; i++) {
+		gdp = ext3_get_group_desc (sb, i, NULL);
+		if (!gdp)
+			continue;
+		desc_count += le16_to_cpu(gdp->bg_free_blocks_count);
+		bitmap_nr = load_block_bitmap (sb, i);
+		if (bitmap_nr < 0)
+			continue;
+		
+		x = ext3_count_free (sb->u.ext3_sb.s_block_bitmap[bitmap_nr],
+				     sb->s_blocksize);
+		printk ("group %d: stored = %d, counted = %lu\n",
+			i, le16_to_cpu(gdp->bg_free_blocks_count), x);
+		bitmap_count += x;
+	}
+	printk("ext3_count_free_blocks: stored = %lu, computed = %lu, %lu\n",
+	       le32_to_cpu(es->s_free_blocks_count), desc_count, bitmap_count);
+	unlock_super (sb);
+	return bitmap_count;
+#else
+	return le32_to_cpu(sb->u.ext3_sb.s_es->s_free_blocks_count);
+#endif
+}
+
+static inline int block_in_use (unsigned long block,
+				struct super_block * sb,
+				unsigned char * map)
+{
+	return ext3_test_bit ((block -
+		le32_to_cpu(sb->u.ext3_sb.s_es->s_first_data_block)) %
+			 EXT3_BLOCKS_PER_GROUP(sb), map);
+}
+
+static inline int test_root(int a, int b)
+{
+	if (a == 0)
+		return 1;
+	while (1) {
+		if (a == 1)
+			return 1;
+		if (a % b)
+			return 0;
+		a = a / b;
+	}
+}
+
+int ext3_group_sparse(int group)
+{
+	return (test_root(group, 3) || test_root(group, 5) ||
+		test_root(group, 7));
+}
+
+/**
+ *	ext3_bg_has_super - number of blocks used by the superblock in group
+ *	@sb: superblock for filesystem
+ *	@group: group number to check
+ *
+ *	Return the number of blocks used by the superblock (primary or backup)
+ *	in this group.  Currently this will be only 0 or 1.
+ */
+int ext3_bg_has_super(struct super_block *sb, int group)
+{
+	if (EXT3_HAS_RO_COMPAT_FEATURE(sb,EXT3_FEATURE_RO_COMPAT_SPARSE_SUPER)&&
+	    !ext3_group_sparse(group))
+		return 0;
+	return 1;
+}
+
+/**
+ *	ext3_bg_num_gdb - number of blocks used by the group table in group
+ *	@sb: superblock for filesystem
+ *	@group: group number to check
+ *
+ *	Return the number of blocks used by the group descriptor table
+ *	(primary or backup) in this group.  In the future there may be a
+ *	different number of descriptor blocks in each group.
+ */
+unsigned long ext3_bg_num_gdb(struct super_block *sb, int group)
+{
+	if (EXT3_HAS_RO_COMPAT_FEATURE(sb,EXT3_FEATURE_RO_COMPAT_SPARSE_SUPER)&&
+	    !ext3_group_sparse(group))
+		return 0;
+	return EXT3_SB(sb)->s_gdb_count;
+}
+
+#ifdef CONFIG_EXT3_CHECK
+/* Called at mount-time, super-block is locked */
+void ext3_check_blocks_bitmap (struct super_block * sb)
+{
+	struct buffer_head * bh;
+	struct ext3_super_block * es;
+	unsigned long desc_count, bitmap_count, x, j;
+	unsigned long desc_blocks;
+	int bitmap_nr;
+	struct ext3_group_desc * gdp;
+	int i;
+
+	es = sb->u.ext3_sb.s_es;
+	desc_count = 0;
+	bitmap_count = 0;
+	gdp = NULL;
+	for (i = 0; i < sb->u.ext3_sb.s_groups_count; i++) {
+		gdp = ext3_get_group_desc (sb, i, NULL);
+		if (!gdp)
+			continue;
+		desc_count += le16_to_cpu(gdp->bg_free_blocks_count);
+		bitmap_nr = load_block_bitmap (sb, i);
+		if (bitmap_nr < 0)
+			continue;
+
+		bh = EXT3_SB(sb)->s_block_bitmap[bitmap_nr];
+
+		if (ext3_bg_has_super(sb, i) && !ext3_test_bit(0, bh->b_data))
+			ext3_error(sb, __FUNCTION__,
+				   "Superblock in group %d is marked free", i);
+
+		desc_blocks = ext3_bg_num_gdb(sb, i);
+		for (j = 0; j < desc_blocks; j++)
+			if (!ext3_test_bit(j + 1, bh->b_data))
+				ext3_error(sb, __FUNCTION__,
+					   "Descriptor block #%ld in group "
+					   "%d is marked free", j, i);
+
+		if (!block_in_use (le32_to_cpu(gdp->bg_block_bitmap),
+						sb, bh->b_data))
+			ext3_error (sb, "ext3_check_blocks_bitmap",
+				    "Block bitmap for group %d is marked free",
+				    i);
+
+		if (!block_in_use (le32_to_cpu(gdp->bg_inode_bitmap),
+						sb, bh->b_data))
+			ext3_error (sb, "ext3_check_blocks_bitmap",
+				    "Inode bitmap for group %d is marked free",
+				    i);
+
+		for (j = 0; j < sb->u.ext3_sb.s_itb_per_group; j++)
+			if (!block_in_use (le32_to_cpu(gdp->bg_inode_table) + j,
+							sb, bh->b_data))
+				ext3_error (sb, "ext3_check_blocks_bitmap",
+					    "Block #%d of the inode table in "
+					    "group %d is marked free", j, i);
+
+		x = ext3_count_free (bh, sb->s_blocksize);
+		if (le16_to_cpu(gdp->bg_free_blocks_count) != x)
+			ext3_error (sb, "ext3_check_blocks_bitmap",
+				    "Wrong free blocks count for group %d, "
+				    "stored = %d, counted = %lu", i,
+				    le16_to_cpu(gdp->bg_free_blocks_count), x);
+		bitmap_count += x;
+	}
+	if (le32_to_cpu(es->s_free_blocks_count) != bitmap_count)
+		ext3_error (sb, "ext3_check_blocks_bitmap",
+			"Wrong free blocks count in super block, "
+			"stored = %lu, counted = %lu",
+			(unsigned long)le32_to_cpu(es->s_free_blocks_count),
+			bitmap_count);
+}
+#endif
diff --git a/fs/ext3/bitmap.c b/fs/ext3/bitmap.c
new file mode 100644
index 00000000000000..4247a500d46930
--- /dev/null
+++ b/fs/ext3/bitmap.c
@@ -0,0 +1,26 @@
+/*
+ *  linux/fs/ext3/bitmap.c
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ */
+
+#include <linux/fs.h>
+
+
+static int nibblemap[] = {4, 3, 3, 2, 3, 2, 2, 1, 3, 2, 2, 1, 2, 1, 1, 0};
+
+unsigned long ext3_count_free (struct buffer_head * map, unsigned int numchars)
+{
+	unsigned int i;
+	unsigned long sum = 0;
+	
+	if (!map) 
+		return (0);
+	for (i = 0; i < numchars; i++)
+		sum += nibblemap[map->b_data[i] & 0xf] +
+			nibblemap[(map->b_data[i] >> 4) & 0xf];
+	return (sum);
+}
diff --git a/fs/ext3/dir.c b/fs/ext3/dir.c
new file mode 100644
index 00000000000000..20841818f819c9
--- /dev/null
+++ b/fs/ext3/dir.c
@@ -0,0 +1,190 @@
+/*
+ *  linux/fs/ext3/dir.c
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ *  from
+ *
+ *  linux/fs/minix/dir.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  ext3 directory handling functions
+ *
+ *  Big-endian to little-endian byte-swapping/bitmaps by
+ *        David S. Miller (davem@caip.rutgers.edu), 1995
+ */
+
+#include <linux/fs.h>
+#include <linux/jbd.h>
+#include <linux/ext3_fs.h>
+
+static unsigned char ext3_filetype_table[] = {
+	DT_UNKNOWN, DT_REG, DT_DIR, DT_CHR, DT_BLK, DT_FIFO, DT_SOCK, DT_LNK
+};
+
+static int ext3_readdir(struct file *, void *, filldir_t);
+
+struct file_operations ext3_dir_operations = {
+	read:		generic_read_dir,
+	readdir:	ext3_readdir,		/* BKL held */
+	ioctl:		ext3_ioctl,		/* BKL held */
+	fsync:		ext3_sync_file,		/* BKL held */
+};
+
+int ext3_check_dir_entry (const char * function, struct inode * dir,
+			  struct ext3_dir_entry_2 * de,
+			  struct buffer_head * bh,
+			  unsigned long offset)
+{
+	const char * error_msg = NULL;
+ 	const int rlen = le16_to_cpu(de->rec_len);
+
+	if (rlen < EXT3_DIR_REC_LEN(1))
+		error_msg = "rec_len is smaller than minimal";
+	else if (rlen % 4 != 0)
+		error_msg = "rec_len % 4 != 0";
+	else if (rlen < EXT3_DIR_REC_LEN(de->name_len))
+		error_msg = "rec_len is too small for name_len";
+	else if (((char *) de - bh->b_data) + rlen > dir->i_sb->s_blocksize)
+		error_msg = "directory entry across blocks";
+	else if (le32_to_cpu(de->inode) >
+			le32_to_cpu(dir->i_sb->u.ext3_sb.s_es->s_inodes_count))
+		error_msg = "inode out of bounds";
+
+	if (error_msg != NULL)
+		ext3_error (dir->i_sb, function,
+			"bad entry in directory #%lu: %s - "
+			"offset=%lu, inode=%lu, rec_len=%d, name_len=%d",
+			dir->i_ino, error_msg, offset,
+			(unsigned long) le32_to_cpu(de->inode),
+			rlen, de->name_len);
+	return error_msg == NULL ? 1 : 0;
+}
+
+static int ext3_readdir(struct file * filp,
+			 void * dirent, filldir_t filldir)
+{
+	int error = 0;
+	unsigned long offset, blk;
+	int i, num, stored;
+	struct buffer_head * bh, * tmp, * bha[16];
+	struct ext3_dir_entry_2 * de;
+	struct super_block * sb;
+	int err;
+	struct inode *inode = filp->f_dentry->d_inode;
+
+	sb = inode->i_sb;
+
+	stored = 0;
+	bh = NULL;
+	offset = filp->f_pos & (sb->s_blocksize - 1);
+
+	while (!error && !stored && filp->f_pos < inode->i_size) {
+		blk = (filp->f_pos) >> EXT3_BLOCK_SIZE_BITS(sb);
+		bh = ext3_bread (0, inode, blk, 0, &err);
+		if (!bh) {
+			ext3_error (sb, "ext3_readdir",
+				"directory #%lu contains a hole at offset %lu",
+				inode->i_ino, (unsigned long)filp->f_pos);
+			filp->f_pos += sb->s_blocksize - offset;
+			continue;
+		}
+
+		/*
+		 * Do the readahead
+		 */
+		if (!offset) {
+			for (i = 16 >> (EXT3_BLOCK_SIZE_BITS(sb) - 9), num = 0;
+			     i > 0; i--) {
+				tmp = ext3_getblk (NULL, inode, ++blk, 0, &err);
+				if (tmp && !buffer_uptodate(tmp) &&
+						!buffer_locked(tmp))
+					bha[num++] = tmp;
+				else
+					brelse (tmp);
+			}
+			if (num) {
+				ll_rw_block (READA, num, bha);
+				for (i = 0; i < num; i++)
+					brelse (bha[i]);
+			}
+		}
+		
+revalidate:
+		/* If the dir block has changed since the last call to
+		 * readdir(2), then we might be pointing to an invalid
+		 * dirent right now.  Scan from the start of the block
+		 * to make sure. */
+		if (filp->f_version != inode->i_version) {
+			for (i = 0; i < sb->s_blocksize && i < offset; ) {
+				de = (struct ext3_dir_entry_2 *) 
+					(bh->b_data + i);
+				/* It's too expensive to do a full
+				 * dirent test each time round this
+				 * loop, but we do have to test at
+				 * least that it is non-zero.  A
+				 * failure will be detected in the
+				 * dirent test below. */
+				if (le16_to_cpu(de->rec_len) <
+						EXT3_DIR_REC_LEN(1))
+					break;
+				i += le16_to_cpu(de->rec_len);
+			}
+			offset = i;
+			filp->f_pos = (filp->f_pos & ~(sb->s_blocksize - 1))
+				| offset;
+			filp->f_version = inode->i_version;
+		}
+		
+		while (!error && filp->f_pos < inode->i_size 
+		       && offset < sb->s_blocksize) {
+			de = (struct ext3_dir_entry_2 *) (bh->b_data + offset);
+			if (!ext3_check_dir_entry ("ext3_readdir", inode, de,
+						   bh, offset)) {
+				/* On error, skip the f_pos to the
+                                   next block. */
+				filp->f_pos = (filp->f_pos |
+						(sb->s_blocksize - 1)) + 1;
+				brelse (bh);
+				return stored;
+			}
+			offset += le16_to_cpu(de->rec_len);
+			if (le32_to_cpu(de->inode)) {
+				/* We might block in the next section
+				 * if the data destination is
+				 * currently swapped out.  So, use a
+				 * version stamp to detect whether or
+				 * not the directory has been modified
+				 * during the copy operation.
+				 */
+				unsigned long version = filp->f_version;
+				unsigned char d_type = DT_UNKNOWN;
+
+				if (EXT3_HAS_INCOMPAT_FEATURE(sb,
+						EXT3_FEATURE_INCOMPAT_FILETYPE)
+						&& de->file_type < EXT3_FT_MAX)
+					d_type =
+					  ext3_filetype_table[de->file_type];
+				error = filldir(dirent, de->name,
+						de->name_len,
+						filp->f_pos,
+						le32_to_cpu(de->inode),
+						d_type);
+				if (error)
+					break;
+				if (version != filp->f_version)
+					goto revalidate;
+				stored ++;
+			}
+			filp->f_pos += le16_to_cpu(de->rec_len);
+		}
+		offset = 0;
+		brelse (bh);
+	}
+	UPDATE_ATIME(inode);
+	return 0;
+}
diff --git a/fs/ext3/file.c b/fs/ext3/file.c
new file mode 100644
index 00000000000000..e480751d02fc48
--- /dev/null
+++ b/fs/ext3/file.c
@@ -0,0 +1,128 @@
+/*
+ *  linux/fs/ext3/file.c
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ *  from
+ *
+ *  linux/fs/minix/file.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  ext3 fs regular file handling primitives
+ *
+ *  64-bit file support on 64-bit platforms by Jakub Jelinek
+ *	(jj@sunsite.ms.mff.cuni.cz)
+ */
+
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/locks.h>
+#include <linux/jbd.h>
+#include <linux/ext3_fs.h>
+#include <linux/ext3_jbd.h>
+#include <linux/smp_lock.h>
+
+/*
+ * Called when an inode is released. Note that this is different
+ * from ext3_file_open: open gets called at every open, but release
+ * gets called only when /all/ the files are closed.
+ */
+static int ext3_release_file (struct inode * inode, struct file * filp)
+{
+	if (filp->f_mode & FMODE_WRITE)
+		ext3_discard_prealloc (inode);
+	return 0;
+}
+
+/*
+ * Called when an inode is about to be opened.
+ * We use this to disallow opening RW large files on 32bit systems if
+ * the caller didn't specify O_LARGEFILE.  On 64bit systems we force
+ * on this flag in sys_open.
+ */
+static int ext3_open_file (struct inode * inode, struct file * filp)
+{
+	if (!(filp->f_flags & O_LARGEFILE) &&
+	    inode->i_size > 0x7FFFFFFFLL)
+		return -EFBIG;
+	return 0;
+}
+
+/*
+ * ext3_file_write().
+ *
+ * Most things are done in ext3_prepare_write() and ext3_commit_write().
+ */
+
+static ssize_t
+ext3_file_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
+{
+	ssize_t ret;
+	int err;
+	struct inode *inode = file->f_dentry->d_inode;
+
+	ret = generic_file_write(file, buf, count, ppos);
+
+	/* Skip file flushing code if there was an error, or if nothing
+	   was written. */
+	if (ret <= 0)
+		return ret;
+	
+	/* If the inode is IS_SYNC, or is O_SYNC and we are doing
+           data-journaling, then we need to make sure that we force the
+           transaction to disk to keep all metadata uptodate
+           synchronously. */
+
+	if (file->f_flags & O_SYNC) {
+		/* If we are non-data-journaled, then the dirty data has
+                   already been flushed to backing store by
+                   generic_osync_inode, and the inode has been flushed
+                   too if there have been any modifications other than
+                   mere timestamp updates.
+		   
+		   Open question --- do we care about flushing
+		   timestamps too if the inode is IS_SYNC? */
+		if (!ext3_should_journal_data(inode))
+			return ret;
+
+		goto force_commit;
+	}
+
+	/* So we know that there has been no forced data flush.  If the
+           inode is marked IS_SYNC, we need to force one ourselves. */
+	if (!IS_SYNC(inode))
+		return ret;
+	
+	/* Open question #2 --- should we force data to disk here too?
+           If we don't, the only impact is that data=writeback
+           filesystems won't flush data to disk automatically on
+           IS_SYNC, only metadata (but historically, that is what ext2
+           has done.) */
+	
+force_commit:
+	err = ext3_force_commit(inode->i_sb);
+	if (err) 
+		return err;
+	return ret;
+}
+
+struct file_operations ext3_file_operations = {
+	llseek:		generic_file_llseek,	/* BKL held */
+	read:		generic_file_read,	/* BKL not held.  Don't need */
+	write:		ext3_file_write,	/* BKL not held.  Don't need */
+	ioctl:		ext3_ioctl,		/* BKL held */
+	mmap:		generic_file_mmap,
+	open:		ext3_open_file,		/* BKL not held.  Don't need */
+	release:	ext3_release_file,	/* BKL not held.  Don't need */
+	fsync:		ext3_sync_file,		/* BKL held */
+};
+
+struct inode_operations ext3_file_inode_operations = {
+	truncate:	ext3_truncate,		/* BKL held */
+	setattr:	ext3_setattr,		/* BKL held */
+};
+
diff --git a/fs/ext3/fsync.c b/fs/ext3/fsync.c
new file mode 100644
index 00000000000000..1a52049bb5f7b8
--- /dev/null
+++ b/fs/ext3/fsync.c
@@ -0,0 +1,75 @@
+/*
+ *  linux/fs/ext3/fsync.c
+ *
+ *  Copyright (C) 1993  Stephen Tweedie (sct@redhat.com)
+ *  from
+ *  Copyright (C) 1992  Remy Card (card@masi.ibp.fr)
+ *                      Laboratoire MASI - Institut Blaise Pascal
+ *                      Universite Pierre et Marie Curie (Paris VI)
+ *  from
+ *  linux/fs/minix/truncate.c   Copyright (C) 1991, 1992  Linus Torvalds
+ * 
+ *  ext3fs fsync primitive
+ *
+ *  Big-endian to little-endian byte-swapping/bitmaps by
+ *        David S. Miller (davem@caip.rutgers.edu), 1995
+ * 
+ *  Removed unnecessary code duplication for little endian machines
+ *  and excessive __inline__s. 
+ *        Andi Kleen, 1997
+ *
+ * Major simplications and cleanup - we only need to do the metadata, because
+ * we can depend on generic_block_fdatasync() to sync the data blocks.
+ */
+
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/jbd.h>
+#include <linux/ext3_fs.h>
+#include <linux/ext3_jbd.h>
+#include <linux/jbd.h>
+#include <linux/smp_lock.h>
+
+/*
+ * akpm: A new design for ext3_sync_file().
+ *
+ * This is only called from sys_fsync(), sys_fdatasync() and sys_msync().
+ * There cannot be a transaction open by this task. (AKPM: quotas?)
+ * Another task could have dirtied this inode.  Its data can be in any
+ * state in the journalling system.
+ *
+ * What we do is just kick off a commit and wait on it.  This will snapshot the
+ * inode to disk.
+ *
+ * Note that there is a serious optimisation we can make here: if the current
+ * inode is not part of j_running_transaction or j_committing_transaction
+ * then we have nothing to do.  That would require implementation of t_ilist,
+ * which isn't too hard.
+ */
+
+int ext3_sync_file(struct file * file, struct dentry *dentry, int datasync)
+{
+	struct inode *inode = dentry->d_inode;
+	int ret;
+
+	J_ASSERT(ext3_journal_current_handle() == 0);
+
+	/*
+	 * fsync_inode_buffers() just walks i_dirty_buffers and waits
+	 * on them.  It's a no-op for full data journalling because
+	 * i_dirty_buffers will be ampty.
+	 * Really, we only need to start I/O on the dirty buffers -
+	 * we'll end up waiting on them in commit.
+	 */
+	ret = fsync_inode_buffers(inode);
+
+	/* In writeback mode, we need to force out data buffers too.  In
+	 * the other modes, ext3_force_commit takes care of forcing out
+	 * just the right data blocks. */
+	if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_WRITEBACK_DATA)
+		ret |= fsync_inode_data_buffers(inode);
+
+	ext3_force_commit(inode->i_sb);
+
+	return ret;
+}
diff --git a/fs/ext3/ialloc.c b/fs/ext3/ialloc.c
new file mode 100644
index 00000000000000..fbb5dc3fe9e011
--- /dev/null
+++ b/fs/ext3/ialloc.c
@@ -0,0 +1,663 @@
+/*
+ *  linux/fs/ext3/ialloc.c
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ *  BSD ufs-inspired inode and directory allocation by
+ *  Stephen Tweedie (sct@redhat.com), 1993
+ *  Big-endian to little-endian byte-swapping/bitmaps by
+ *        David S. Miller (davem@caip.rutgers.edu), 1995
+ */
+
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/jbd.h>
+#include <linux/ext3_fs.h>
+#include <linux/ext3_jbd.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <linux/locks.h>
+#include <linux/quotaops.h>
+
+#include <asm/bitops.h>
+#include <asm/byteorder.h>
+
+/*
+ * ialloc.c contains the inodes allocation and deallocation routines
+ */
+
+/*
+ * The free inodes are managed by bitmaps.  A file system contains several
+ * blocks groups.  Each group contains 1 bitmap block for blocks, 1 bitmap
+ * block for inodes, N blocks for the inode table and data blocks.
+ *
+ * The file system contains group descriptors which are located after the
+ * super block.  Each descriptor contains the number of the bitmap block and
+ * the free blocks count in the block.  The descriptors are loaded in memory
+ * when a file system is mounted (see ext3_read_super).
+ */
+
+
+/*
+ * Read the inode allocation bitmap for a given block_group, reading
+ * into the specified slot in the superblock's bitmap cache.
+ *
+ * Return >=0 on success or a -ve error code.
+ */
+static int read_inode_bitmap (struct super_block * sb,
+			       unsigned long block_group,
+			       unsigned int bitmap_nr)
+{
+	struct ext3_group_desc * gdp;
+	struct buffer_head * bh = NULL;
+	int retval = 0;
+
+	gdp = ext3_get_group_desc (sb, block_group, NULL);
+	if (!gdp) {
+		retval = -EIO;
+		goto error_out;
+	}
+	bh = sb_bread(sb, le32_to_cpu(gdp->bg_inode_bitmap));
+	if (!bh) {
+		ext3_error (sb, "read_inode_bitmap",
+			    "Cannot read inode bitmap - "
+			    "block_group = %lu, inode_bitmap = %u",
+			    block_group, gdp->bg_inode_bitmap);
+		retval = -EIO;
+	}
+	/*
+	 * On IO error, just leave a zero in the superblock's block pointer for
+	 * this group.  The IO will be retried next time.
+	 */
+error_out:
+	sb->u.ext3_sb.s_inode_bitmap_number[bitmap_nr] = block_group;
+	sb->u.ext3_sb.s_inode_bitmap[bitmap_nr] = bh;
+	return retval;
+}
+
+/*
+ * load_inode_bitmap loads the inode bitmap for a blocks group
+ *
+ * It maintains a cache for the last bitmaps loaded.  This cache is managed
+ * with a LRU algorithm.
+ *
+ * Notes:
+ * 1/ There is one cache per mounted file system.
+ * 2/ If the file system contains less than EXT3_MAX_GROUP_LOADED groups,
+ *    this function reads the bitmap without maintaining a LRU cache.
+ *
+ * Return the slot used to store the bitmap, or a -ve error code.
+ */
+static int load_inode_bitmap (struct super_block * sb,
+			      unsigned int block_group)
+{
+	struct ext3_sb_info *sbi = EXT3_SB(sb);
+	unsigned long inode_bitmap_number;
+	struct buffer_head * inode_bitmap;
+	int i, j, retval = 0;
+
+	if (block_group >= sbi->s_groups_count)
+		ext3_panic (sb, "load_inode_bitmap",
+			    "block_group >= groups_count - "
+			    "block_group = %d, groups_count = %lu",
+			    block_group, sbi->s_groups_count);
+	if (sbi->s_loaded_inode_bitmaps > 0 &&
+	    sbi->s_inode_bitmap_number[0] == block_group &&
+	    sbi->s_inode_bitmap[0] != NULL)
+		return 0;
+	if (sbi->s_groups_count <= EXT3_MAX_GROUP_LOADED) {
+		if (sbi->s_inode_bitmap[block_group]) {
+			if (sbi->s_inode_bitmap_number[block_group] !=
+						block_group)
+				ext3_panic(sb, "load_inode_bitmap",
+					"block_group != inode_bitmap_number");
+			return block_group;
+		}
+		retval = read_inode_bitmap(sb, block_group, block_group);
+		if (retval < 0)
+			return retval;
+		return block_group;
+	}
+
+	for (i = 0; i < sbi->s_loaded_inode_bitmaps &&
+		    sbi->s_inode_bitmap_number[i] != block_group; i++)
+		/* do nothing */;
+	if (i < sbi->s_loaded_inode_bitmaps &&
+	    sbi->s_inode_bitmap_number[i] == block_group) {
+		inode_bitmap_number = sbi->s_inode_bitmap_number[i];
+		inode_bitmap = sbi->s_inode_bitmap[i];
+		for (j = i; j > 0; j--) {
+			sbi->s_inode_bitmap_number[j] =
+				sbi->s_inode_bitmap_number[j - 1];
+			sbi->s_inode_bitmap[j] = sbi->s_inode_bitmap[j - 1];
+		}
+		sbi->s_inode_bitmap_number[0] = inode_bitmap_number;
+		sbi->s_inode_bitmap[0] = inode_bitmap;
+
+		/*
+		 * There's still one special case here --- if inode_bitmap == 0
+		 * then our last attempt to read the bitmap failed and we have
+		 * just ended up caching that failure.  Try again to read it.
+		 */
+		if (!inode_bitmap)
+			retval = read_inode_bitmap (sb, block_group, 0);
+	} else {
+		if (sbi->s_loaded_inode_bitmaps < EXT3_MAX_GROUP_LOADED)
+			sbi->s_loaded_inode_bitmaps++;
+		else
+			brelse(sbi->s_inode_bitmap[EXT3_MAX_GROUP_LOADED - 1]);
+		for (j = sbi->s_loaded_inode_bitmaps - 1; j > 0; j--) {
+			sbi->s_inode_bitmap_number[j] =
+				sbi->s_inode_bitmap_number[j - 1];
+			sbi->s_inode_bitmap[j] = sbi->s_inode_bitmap[j - 1];
+		}
+		retval = read_inode_bitmap (sb, block_group, 0);
+	}
+	return retval;
+}
+
+/*
+ * NOTE! When we get the inode, we're the only people
+ * that have access to it, and as such there are no
+ * race conditions we have to worry about. The inode
+ * is not on the hash-lists, and it cannot be reached
+ * through the filesystem because the directory entry
+ * has been deleted earlier.
+ *
+ * HOWEVER: we must make sure that we get no aliases,
+ * which means that we have to call "clear_inode()"
+ * _before_ we mark the inode not in use in the inode
+ * bitmaps. Otherwise a newly created file might use
+ * the same inode number (not actually the same pointer
+ * though), and then we'd have two inodes sharing the
+ * same inode number and space on the harddisk.
+ */
+void ext3_free_inode (handle_t *handle, struct inode * inode)
+{
+	struct super_block * sb = inode->i_sb;
+	int is_directory;
+	unsigned long ino;
+	struct buffer_head * bh;
+	struct buffer_head * bh2;
+	unsigned long block_group;
+	unsigned long bit;
+	int bitmap_nr;
+	struct ext3_group_desc * gdp;
+	struct ext3_super_block * es;
+	int fatal = 0, err;
+
+	if (!inode->i_dev) {
+		printk ("ext3_free_inode: inode has no device\n");
+		return;
+	}
+	if (atomic_read(&inode->i_count) > 1) {
+		printk ("ext3_free_inode: inode has count=%d\n",
+					atomic_read(&inode->i_count));
+		return;
+	}
+	if (inode->i_nlink) {
+		printk ("ext3_free_inode: inode has nlink=%d\n",
+			inode->i_nlink);
+		return;
+	}
+	if (!sb) {
+		printk("ext3_free_inode: inode on nonexistent device\n");
+		return;
+	}
+
+	ino = inode->i_ino;
+	ext3_debug ("freeing inode %lu\n", ino);
+
+	/*
+	 * Note: we must free any quota before locking the superblock,
+	 * as writing the quota to disk may need the lock as well.
+	 */
+	DQUOT_INIT(inode);
+	DQUOT_FREE_INODE(inode);
+	DQUOT_DROP(inode);
+
+	is_directory = S_ISDIR(inode->i_mode);
+
+	/* Do this BEFORE marking the inode not in use or returning an error */
+	clear_inode (inode);
+
+	lock_super (sb);
+	es = sb->u.ext3_sb.s_es;
+	if (ino < EXT3_FIRST_INO(sb) || ino > le32_to_cpu(es->s_inodes_count)) {
+		ext3_error (sb, "ext3_free_inode",
+			    "reserved or nonexistent inode %lu", ino);
+		goto error_return;
+	}
+	block_group = (ino - 1) / EXT3_INODES_PER_GROUP(sb);
+	bit = (ino - 1) % EXT3_INODES_PER_GROUP(sb);
+	bitmap_nr = load_inode_bitmap (sb, block_group);
+	if (bitmap_nr < 0)
+		goto error_return;
+
+	bh = sb->u.ext3_sb.s_inode_bitmap[bitmap_nr];
+
+	BUFFER_TRACE(bh, "get_write_access");
+	fatal = ext3_journal_get_write_access(handle, bh);
+	if (fatal)
+		goto error_return;
+
+	/* Ok, now we can actually update the inode bitmaps.. */
+	if (!ext3_clear_bit (bit, bh->b_data))
+		ext3_error (sb, "ext3_free_inode",
+			      "bit already cleared for inode %lu", ino);
+	else {
+		gdp = ext3_get_group_desc (sb, block_group, &bh2);
+
+		BUFFER_TRACE(bh2, "get_write_access");
+		fatal = ext3_journal_get_write_access(handle, bh2);
+		if (fatal) goto error_return;
+
+		BUFFER_TRACE(sb->u.ext3_sb.s_sbh, "get write access");
+		fatal = ext3_journal_get_write_access(handle, sb->u.ext3_sb.s_sbh);
+		if (fatal) goto error_return;
+
+		if (gdp) {
+			gdp->bg_free_inodes_count = cpu_to_le16(
+				le16_to_cpu(gdp->bg_free_inodes_count) + 1);
+			if (is_directory)
+				gdp->bg_used_dirs_count = cpu_to_le16(
+				  le16_to_cpu(gdp->bg_used_dirs_count) - 1);
+		}
+		BUFFER_TRACE(bh2, "call ext3_journal_dirty_metadata");
+		err = ext3_journal_dirty_metadata(handle, bh2);
+		if (!fatal) fatal = err;
+		es->s_free_inodes_count =
+			cpu_to_le32(le32_to_cpu(es->s_free_inodes_count) + 1);
+		BUFFER_TRACE(sb->u.ext3_sb.s_sbh,
+					"call ext3_journal_dirty_metadata");
+		err = ext3_journal_dirty_metadata(handle, sb->u.ext3_sb.s_sbh);
+		if (!fatal) fatal = err;
+	}
+	BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata");
+	err = ext3_journal_dirty_metadata(handle, bh);
+	if (!fatal)
+		fatal = err;
+	sb->s_dirt = 1;
+error_return:
+	ext3_std_error(sb, fatal);
+	unlock_super(sb);
+}
+
+/*
+ * There are two policies for allocating an inode.  If the new inode is
+ * a directory, then a forward search is made for a block group with both
+ * free space and a low directory-to-inode ratio; if that fails, then of
+ * the groups with above-average free space, that group with the fewest
+ * directories already is chosen.
+ *
+ * For other inodes, search forward from the parent directory's block
+ * group to find a free inode.
+ */
+struct inode * ext3_new_inode (handle_t *handle,
+				const struct inode * dir, int mode)
+{
+	struct super_block * sb;
+	struct buffer_head * bh;
+	struct buffer_head * bh2;
+	int i, j, avefreei;
+	struct inode * inode;
+	int bitmap_nr;
+	struct ext3_group_desc * gdp;
+	struct ext3_group_desc * tmp;
+	struct ext3_super_block * es;
+	int err = 0;
+
+	/* Cannot create files in a deleted directory */
+	if (!dir || !dir->i_nlink)
+		return ERR_PTR(-EPERM);
+
+	sb = dir->i_sb;
+	inode = new_inode(sb);
+	if (!inode)
+		return ERR_PTR(-ENOMEM);
+	init_rwsem(&inode->u.ext3_i.truncate_sem);
+
+	lock_super (sb);
+	es = sb->u.ext3_sb.s_es;
+repeat:
+	gdp = NULL;
+	i = 0;
+
+	if (S_ISDIR(mode)) {
+		avefreei = le32_to_cpu(es->s_free_inodes_count) /
+			sb->u.ext3_sb.s_groups_count;
+		if (!gdp) {
+			for (j = 0; j < sb->u.ext3_sb.s_groups_count; j++) {
+				struct buffer_head *temp_buffer;
+				tmp = ext3_get_group_desc (sb, j, &temp_buffer);
+				if (tmp &&
+				    le16_to_cpu(tmp->bg_free_inodes_count) &&
+				    le16_to_cpu(tmp->bg_free_inodes_count) >=
+							avefreei) {
+					if (!gdp || (le16_to_cpu(tmp->bg_free_blocks_count) >
+						le16_to_cpu(gdp->bg_free_blocks_count))) {
+						i = j;
+						gdp = tmp;
+						bh2 = temp_buffer;
+					}
+				}
+			}
+		}
+	} else {
+		/*
+		 * Try to place the inode in its parent directory
+		 */
+		i = dir->u.ext3_i.i_block_group;
+		tmp = ext3_get_group_desc (sb, i, &bh2);
+		if (tmp && le16_to_cpu(tmp->bg_free_inodes_count))
+			gdp = tmp;
+		else
+		{
+			/*
+			 * Use a quadratic hash to find a group with a
+			 * free inode
+			 */
+			for (j = 1; j < sb->u.ext3_sb.s_groups_count; j <<= 1) {
+				i += j;
+				if (i >= sb->u.ext3_sb.s_groups_count)
+					i -= sb->u.ext3_sb.s_groups_count;
+				tmp = ext3_get_group_desc (sb, i, &bh2);
+				if (tmp &&
+				    le16_to_cpu(tmp->bg_free_inodes_count)) {
+					gdp = tmp;
+					break;
+				}
+			}
+		}
+		if (!gdp) {
+			/*
+			 * That failed: try linear search for a free inode
+			 */
+			i = dir->u.ext3_i.i_block_group + 1;
+			for (j = 2; j < sb->u.ext3_sb.s_groups_count; j++) {
+				if (++i >= sb->u.ext3_sb.s_groups_count)
+					i = 0;
+				tmp = ext3_get_group_desc (sb, i, &bh2);
+				if (tmp &&
+				    le16_to_cpu(tmp->bg_free_inodes_count)) {
+					gdp = tmp;
+					break;
+				}
+			}
+		}
+	}
+
+	err = -ENOSPC;
+	if (!gdp)
+		goto out;
+
+	err = -EIO;
+	bitmap_nr = load_inode_bitmap (sb, i);
+	if (bitmap_nr < 0)
+		goto fail;
+
+	bh = sb->u.ext3_sb.s_inode_bitmap[bitmap_nr];
+
+	if ((j = ext3_find_first_zero_bit ((unsigned long *) bh->b_data,
+				      EXT3_INODES_PER_GROUP(sb))) <
+	    EXT3_INODES_PER_GROUP(sb)) {
+		BUFFER_TRACE(bh, "get_write_access");
+		err = ext3_journal_get_write_access(handle, bh);
+		if (err) goto fail;
+		
+		if (ext3_set_bit (j, bh->b_data)) {
+			ext3_error (sb, "ext3_new_inode",
+				      "bit already set for inode %d", j);
+			goto repeat;
+		}
+		BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata");
+		err = ext3_journal_dirty_metadata(handle, bh);
+		if (err) goto fail;
+	} else {
+		if (le16_to_cpu(gdp->bg_free_inodes_count) != 0) {
+			ext3_error (sb, "ext3_new_inode",
+				    "Free inodes count corrupted in group %d",
+				    i);
+			/* Is it really ENOSPC? */
+			err = -ENOSPC;
+			if (sb->s_flags & MS_RDONLY)
+				goto fail;
+
+			BUFFER_TRACE(bh2, "get_write_access");
+			err = ext3_journal_get_write_access(handle, bh2);
+			if (err) goto fail;
+			gdp->bg_free_inodes_count = 0;
+			BUFFER_TRACE(bh2, "call ext3_journal_dirty_metadata");
+			err = ext3_journal_dirty_metadata(handle, bh2);
+			if (err) goto fail;
+		}
+		goto repeat;
+	}
+	j += i * EXT3_INODES_PER_GROUP(sb) + 1;
+	if (j < EXT3_FIRST_INO(sb) || j > le32_to_cpu(es->s_inodes_count)) {
+		ext3_error (sb, "ext3_new_inode",
+			    "reserved inode or inode > inodes count - "
+			    "block_group = %d,inode=%d", i, j);
+		err = -EIO;
+		goto fail;
+	}
+
+	BUFFER_TRACE(bh2, "get_write_access");
+	err = ext3_journal_get_write_access(handle, bh2);
+	if (err) goto fail;
+	gdp->bg_free_inodes_count =
+		cpu_to_le16(le16_to_cpu(gdp->bg_free_inodes_count) - 1);
+	if (S_ISDIR(mode))
+		gdp->bg_used_dirs_count =
+			cpu_to_le16(le16_to_cpu(gdp->bg_used_dirs_count) + 1);
+	BUFFER_TRACE(bh2, "call ext3_journal_dirty_metadata");
+	err = ext3_journal_dirty_metadata(handle, bh2);
+	if (err) goto fail;
+	
+	BUFFER_TRACE(sb->u.ext3_sb.s_sbh, "get_write_access");
+	err = ext3_journal_get_write_access(handle, sb->u.ext3_sb.s_sbh);
+	if (err) goto fail;
+	es->s_free_inodes_count =
+		cpu_to_le32(le32_to_cpu(es->s_free_inodes_count) - 1);
+	BUFFER_TRACE(sb->u.ext3_sb.s_sbh, "call ext3_journal_dirty_metadata");
+	err = ext3_journal_dirty_metadata(handle, sb->u.ext3_sb.s_sbh);
+	sb->s_dirt = 1;
+	if (err) goto fail;
+
+	inode->i_uid = current->fsuid;
+	if (test_opt (sb, GRPID))
+		inode->i_gid = dir->i_gid;
+	else if (dir->i_mode & S_ISGID) {
+		inode->i_gid = dir->i_gid;
+		if (S_ISDIR(mode))
+			mode |= S_ISGID;
+	} else
+		inode->i_gid = current->fsgid;
+	inode->i_mode = mode;
+
+	inode->i_ino = j;
+	/* This is the optimal IO size (for stat), not the fs block size */
+	inode->i_blksize = PAGE_SIZE;
+	inode->i_blocks = 0;
+	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+	inode->u.ext3_i.i_flags = dir->u.ext3_i.i_flags & ~EXT3_INDEX_FL;
+	if (S_ISLNK(mode))
+		inode->u.ext3_i.i_flags &= ~(EXT3_IMMUTABLE_FL|EXT3_APPEND_FL);
+#ifdef EXT3_FRAGMENTS
+	inode->u.ext3_i.i_faddr = 0;
+	inode->u.ext3_i.i_frag_no = 0;
+	inode->u.ext3_i.i_frag_size = 0;
+#endif
+	inode->u.ext3_i.i_file_acl = 0;
+	inode->u.ext3_i.i_dir_acl = 0;
+	inode->u.ext3_i.i_dtime = 0;
+	INIT_LIST_HEAD(&inode->u.ext3_i.i_orphan);
+#ifdef EXT3_PREALLOCATE
+	inode->u.ext3_i.i_prealloc_count = 0;
+#endif
+	inode->u.ext3_i.i_block_group = i;
+	
+	ext3_set_inode_flags(inode);
+	if (IS_SYNC(inode))
+		handle->h_sync = 1;
+	insert_inode_hash(inode);
+	inode->i_generation = sb->u.ext3_sb.s_next_generation++;
+
+	inode->u.ext3_i.i_state = EXT3_STATE_NEW;
+	err = ext3_mark_inode_dirty(handle, inode);
+	if (err) goto fail;
+	
+	unlock_super (sb);
+	if(DQUOT_ALLOC_INODE(inode)) {
+		DQUOT_DROP(inode);
+		inode->i_flags |= S_NOQUOTA;
+		inode->i_nlink = 0;
+		iput(inode);
+		return ERR_PTR(-EDQUOT);
+	}
+	ext3_debug ("allocating inode %lu\n", inode->i_ino);
+	return inode;
+
+fail:
+	ext3_std_error(sb, err);
+out:
+	unlock_super(sb);
+	iput(inode);
+	return ERR_PTR(err);
+}
+
+/* Verify that we are loading a valid orphan from disk */
+struct inode *ext3_orphan_get(struct super_block *sb, unsigned long ino)
+{
+	unsigned long max_ino = le32_to_cpu(EXT3_SB(sb)->s_es->s_inodes_count);
+	unsigned long block_group;
+	int bit;
+	int bitmap_nr;
+	struct buffer_head *bh;
+	struct inode *inode = NULL;
+
+	/* Error cases - e2fsck has already cleaned up for us */
+	if (ino > max_ino) {
+		ext3_warning(sb, __FUNCTION__,
+			     "bad orphan ino %lu!  e2fsck was run?\n", ino);
+		return NULL;
+	}
+
+	block_group = (ino - 1) / EXT3_INODES_PER_GROUP(sb);
+	bit = (ino - 1) % EXT3_INODES_PER_GROUP(sb);
+	if ((bitmap_nr = load_inode_bitmap(sb, block_group)) < 0 ||
+	    !(bh = EXT3_SB(sb)->s_inode_bitmap[bitmap_nr])) {
+		ext3_warning(sb, __FUNCTION__,
+			     "inode bitmap error for orphan %lu\n", ino);
+		return NULL;
+	}
+
+	/* Having the inode bit set should be a 100% indicator that this
+	 * is a valid orphan (no e2fsck run on fs).  Orphans also include
+	 * inodes that were being truncated, so we can't check i_nlink==0.
+	 */
+	if (!ext3_test_bit(bit, bh->b_data) || !(inode = iget(sb, ino)) ||
+	    is_bad_inode(inode) || NEXT_ORPHAN(inode) > max_ino) {
+		ext3_warning(sb, __FUNCTION__,
+			     "bad orphan inode %lu!  e2fsck was run?\n", ino);
+		printk(KERN_NOTICE "ext3_test_bit(bit=%d, block=%ld) = %d\n",
+		       bit, bh->b_blocknr, ext3_test_bit(bit, bh->b_data));
+		printk(KERN_NOTICE "inode=%p\n", inode);
+		if (inode) {
+			printk(KERN_NOTICE "is_bad_inode(inode)=%d\n",
+			       is_bad_inode(inode));
+			printk(KERN_NOTICE "NEXT_ORPHAN(inode)=%u\n",
+			       NEXT_ORPHAN(inode));
+			printk(KERN_NOTICE "max_ino=%lu\n", max_ino);
+		}
+		/* Avoid freeing blocks if we got a bad deleted inode */
+		if (inode && inode->i_nlink == 0)
+			inode->i_blocks = 0;
+		iput(inode);
+		return NULL;
+	}
+
+	return inode;
+}
+
+unsigned long ext3_count_free_inodes (struct super_block * sb)
+{
+#ifdef EXT3FS_DEBUG
+	struct ext3_super_block * es;
+	unsigned long desc_count, bitmap_count, x;
+	int bitmap_nr;
+	struct ext3_group_desc * gdp;
+	int i;
+
+	lock_super (sb);
+	es = sb->u.ext3_sb.s_es;
+	desc_count = 0;
+	bitmap_count = 0;
+	gdp = NULL;
+	for (i = 0; i < sb->u.ext3_sb.s_groups_count; i++) {
+		gdp = ext3_get_group_desc (sb, i, NULL);
+		if (!gdp)
+			continue;
+		desc_count += le16_to_cpu(gdp->bg_free_inodes_count);
+		bitmap_nr = load_inode_bitmap (sb, i);
+		if (bitmap_nr < 0)
+			continue;
+
+		x = ext3_count_free (sb->u.ext3_sb.s_inode_bitmap[bitmap_nr],
+				     EXT3_INODES_PER_GROUP(sb) / 8);
+		printk ("group %d: stored = %d, counted = %lu\n",
+			i, le16_to_cpu(gdp->bg_free_inodes_count), x);
+		bitmap_count += x;
+	}
+	printk("ext3_count_free_inodes: stored = %lu, computed = %lu, %lu\n",
+		le32_to_cpu(es->s_free_inodes_count), desc_count, bitmap_count);
+	unlock_super (sb);
+	return desc_count;
+#else
+	return le32_to_cpu(sb->u.ext3_sb.s_es->s_free_inodes_count);
+#endif
+}
+
+#ifdef CONFIG_EXT3_CHECK
+/* Called at mount-time, super-block is locked */
+void ext3_check_inodes_bitmap (struct super_block * sb)
+{
+	struct ext3_super_block * es;
+	unsigned long desc_count, bitmap_count, x;
+	int bitmap_nr;
+	struct ext3_group_desc * gdp;
+	int i;
+
+	es = sb->u.ext3_sb.s_es;
+	desc_count = 0;
+	bitmap_count = 0;
+	gdp = NULL;
+	for (i = 0; i < sb->u.ext3_sb.s_groups_count; i++) {
+		gdp = ext3_get_group_desc (sb, i, NULL);
+		if (!gdp)
+			continue;
+		desc_count += le16_to_cpu(gdp->bg_free_inodes_count);
+		bitmap_nr = load_inode_bitmap (sb, i);
+		if (bitmap_nr < 0)
+			continue;
+
+		x = ext3_count_free (sb->u.ext3_sb.s_inode_bitmap[bitmap_nr],
+				     EXT3_INODES_PER_GROUP(sb) / 8);
+		if (le16_to_cpu(gdp->bg_free_inodes_count) != x)
+			ext3_error (sb, "ext3_check_inodes_bitmap",
+				    "Wrong free inodes count in group %d, "
+				    "stored = %d, counted = %lu", i,
+				    le16_to_cpu(gdp->bg_free_inodes_count), x);
+		bitmap_count += x;
+	}
+	if (le32_to_cpu(es->s_free_inodes_count) != bitmap_count)
+		ext3_error (sb, "ext3_check_inodes_bitmap",
+			    "Wrong free inodes count in super block, "
+			    "stored = %lu, counted = %lu",
+			    (unsigned long)le32_to_cpu(es->s_free_inodes_count),
+			    bitmap_count);
+}
+#endif
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
new file mode 100644
index 00000000000000..bcd86f6d805147
--- /dev/null
+++ b/fs/ext3/inode.c
@@ -0,0 +1,2737 @@
+/*
+ *  linux/fs/ext3/inode.c
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ *  from
+ *
+ *  linux/fs/minix/inode.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  Goal-directed block allocation by Stephen Tweedie
+ * 	(sct@redhat.com), 1993, 1998
+ *  Big-endian to little-endian byte-swapping/bitmaps by
+ *        David S. Miller (davem@caip.rutgers.edu), 1995
+ *  64-bit file support on 64-bit platforms by Jakub Jelinek
+ * 	(jj@sunsite.ms.mff.cuni.cz)
+ *
+ *  Assorted race fixes, rewrite of ext3_get_block() by Al Viro, 2000
+ */
+
+#include <linux/fs.h>
+#include <linux/sched.h>
+#include <linux/ext3_jbd.h>
+#include <linux/jbd.h>
+#include <linux/locks.h>
+#include <linux/smp_lock.h>
+#include <linux/highuid.h>
+#include <linux/quotaops.h>
+#include <linux/module.h>
+
+/*
+ * SEARCH_FROM_ZERO forces each block allocation to search from the start
+ * of the filesystem.  This is to force rapid reallocation of recently-freed
+ * blocks.  The file fragmentation is horrendous.
+ */
+#undef SEARCH_FROM_ZERO
+
+/*
+ * Test whether an inode is a fast symlink.
+ */
+static inline int ext3_inode_is_fast_symlink(struct inode *inode)
+{
+	int ea_blocks = EXT3_I(inode)->i_file_acl ?
+		(inode->i_sb->s_blocksize >> 9) : 0;
+
+	return (S_ISLNK(inode->i_mode) &&
+		inode->i_blocks - ea_blocks == 0);
+}
+
+/* The ext3 forget function must perform a revoke if we are freeing data
+ * which has been journaled.  Metadata (eg. indirect blocks) must be
+ * revoked in all cases. 
+ *
+ * "bh" may be NULL: a metadata block may have been freed from memory
+ * but there may still be a record of it in the journal, and that record
+ * still needs to be revoked.
+ */
+
+static int ext3_forget(handle_t *handle, int is_metadata,
+		       struct inode *inode, struct buffer_head *bh,
+		       int blocknr)
+{
+	int err;
+
+	BUFFER_TRACE(bh, "enter");
+
+	jbd_debug(4, "forgetting bh %p: is_metadata = %d, mode %o, "
+		  "data mode %lx\n",
+		  bh, is_metadata, inode->i_mode,
+		  test_opt(inode->i_sb, DATA_FLAGS));
+	
+	/* Never use the revoke function if we are doing full data
+	 * journaling: there is no need to, and a V1 superblock won't
+	 * support it.  Otherwise, only skip the revoke on un-journaled
+	 * data blocks. */
+
+	if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA ||
+	    (!is_metadata && !ext3_should_journal_data(inode))) {
+		if (bh) {
+			BUFFER_TRACE(bh, "call journal_forget");
+			ext3_journal_forget(handle, bh);
+		}
+		return 0;
+	}
+
+	/*
+	 * data!=journal && (is_metadata || should_journal_data(inode))
+	 */
+	BUFFER_TRACE(bh, "call ext3_journal_revoke");
+	err = ext3_journal_revoke(handle, blocknr, bh);
+	if (err)
+		ext3_abort(inode->i_sb, __FUNCTION__,
+			   "error %d when attempting revoke", err);
+	BUFFER_TRACE(bh, "exit");
+	return err;
+}
+
+/*
+ * Work out how many blocks we need to progress with the next chunk of a
+ * truncate transaction.
+ */
+
+static unsigned long blocks_for_truncate(struct inode *inode) 
+{
+	unsigned long needed;
+	
+	needed = inode->i_blocks >> (inode->i_sb->s_blocksize_bits - 9);
+
+	/* Give ourselves just enough room to cope with inodes in which
+	 * i_blocks is corrupt: we've seen disk corruptions in the past
+	 * which resulted in random data in an inode which looked enough
+	 * like a regular file for ext3 to try to delete it.  Things
+	 * will go a bit crazy if that happens, but at least we should
+	 * try not to panic the whole kernel. */
+	if (needed < 2)
+		needed = 2;
+
+	/* But we need to bound the transaction so we don't overflow the
+	 * journal. */
+	if (needed > EXT3_MAX_TRANS_DATA) 
+		needed = EXT3_MAX_TRANS_DATA;
+
+	return EXT3_DATA_TRANS_BLOCKS + needed;
+}
+	
+/* 
+ * Truncate transactions can be complex and absolutely huge.  So we need to
+ * be able to restart the transaction at a conventient checkpoint to make
+ * sure we don't overflow the journal.
+ *
+ * start_transaction gets us a new handle for a truncate transaction,
+ * and extend_transaction tries to extend the existing one a bit.  If
+ * extend fails, we need to propagate the failure up and restart the
+ * transaction in the top-level truncate loop. --sct 
+ */
+
+static handle_t *start_transaction(struct inode *inode) 
+{
+	handle_t *result;
+	
+	result = ext3_journal_start(inode, blocks_for_truncate(inode));
+	if (!IS_ERR(result))
+		return result;
+	
+	ext3_std_error(inode->i_sb, PTR_ERR(result));
+	return result;
+}
+
+/*
+ * Try to extend this transaction for the purposes of truncation.
+ *
+ * Returns 0 if we managed to create more room.  If we can't create more
+ * room, and the transaction must be restarted we return 1.
+ */
+static int try_to_extend_transaction(handle_t *handle, struct inode *inode)
+{
+	if (handle->h_buffer_credits > EXT3_RESERVE_TRANS_BLOCKS)
+		return 0;
+	if (!ext3_journal_extend(handle, blocks_for_truncate(inode)))
+		return 0;
+	return 1;
+}
+
+/*
+ * Restart the transaction associated with *handle.  This does a commit,
+ * so before we call here everything must be consistently dirtied against
+ * this transaction.
+ */
+static int ext3_journal_test_restart(handle_t *handle, struct inode *inode)
+{
+	jbd_debug(2, "restarting handle %p\n", handle);
+	return ext3_journal_restart(handle, blocks_for_truncate(inode));
+}
+
+/*
+ * Called at each iput()
+ */
+void ext3_put_inode (struct inode * inode)
+{
+	ext3_discard_prealloc (inode);
+}
+
+/*
+ * Called at the last iput() if i_nlink is zero.
+ */
+void ext3_delete_inode (struct inode * inode)
+{
+	handle_t *handle;
+	
+	if (is_bad_inode(inode) ||
+	    inode->i_ino == EXT3_ACL_IDX_INO ||
+	    inode->i_ino == EXT3_ACL_DATA_INO)
+		goto no_delete;
+
+	lock_kernel();
+	handle = start_transaction(inode);
+	if (IS_ERR(handle)) {
+		/* If we're going to skip the normal cleanup, we still
+		 * need to make sure that the in-core orphan linked list
+		 * is properly cleaned up. */
+		ext3_orphan_del(NULL, inode);
+
+		ext3_std_error(inode->i_sb, PTR_ERR(handle));
+		unlock_kernel();
+		goto no_delete;
+	}
+	
+	if (IS_SYNC(inode))
+		handle->h_sync = 1;
+	inode->i_size = 0;
+	if (inode->i_blocks)
+		ext3_truncate(inode);
+	/*
+	 * Kill off the orphan record which ext3_truncate created.
+	 * AKPM: I think this can be inside the above `if'.
+	 * Note that ext3_orphan_del() has to be able to cope with the
+	 * deletion of a non-existent orphan - this is because we don't
+	 * know if ext3_truncate() actually created an orphan record.
+	 * (Well, we could do this if we need to, but heck - it works)
+	 */
+	ext3_orphan_del(handle, inode);
+	inode->u.ext3_i.i_dtime	= CURRENT_TIME;
+
+	/* 
+	 * One subtle ordering requirement: if anything has gone wrong
+	 * (transaction abort, IO errors, whatever), then we can still
+	 * do these next steps (the fs will already have been marked as
+	 * having errors), but we can't free the inode if the mark_dirty
+	 * fails.  
+	 */
+	if (ext3_mark_inode_dirty(handle, inode))
+		/* If that failed, just do the required in-core inode clear. */
+		clear_inode(inode);
+	else
+		ext3_free_inode(handle, inode);
+	ext3_journal_stop(handle, inode);
+	unlock_kernel();
+	return;
+no_delete:
+	clear_inode(inode);	/* We must guarantee clearing of inode... */
+}
+
+void ext3_discard_prealloc (struct inode * inode)
+{
+#ifdef EXT3_PREALLOCATE
+	lock_kernel();
+	/* Writer: ->i_prealloc* */
+	if (inode->u.ext3_i.i_prealloc_count) {
+		unsigned short total = inode->u.ext3_i.i_prealloc_count;
+		unsigned long block = inode->u.ext3_i.i_prealloc_block;
+		inode->u.ext3_i.i_prealloc_count = 0;
+		inode->u.ext3_i.i_prealloc_block = 0;
+		/* Writer: end */
+		ext3_free_blocks (inode, block, total);
+	}
+	unlock_kernel();
+#endif
+}
+
+static int ext3_alloc_block (handle_t *handle,
+			struct inode * inode, unsigned long goal, int *err)
+{
+#ifdef EXT3FS_DEBUG
+	static unsigned long alloc_hits = 0, alloc_attempts = 0;
+#endif
+	unsigned long result;
+
+#ifdef EXT3_PREALLOCATE
+	/* Writer: ->i_prealloc* */
+	if (inode->u.ext3_i.i_prealloc_count &&
+	    (goal == inode->u.ext3_i.i_prealloc_block ||
+	     goal + 1 == inode->u.ext3_i.i_prealloc_block))
+	{
+		result = inode->u.ext3_i.i_prealloc_block++;
+		inode->u.ext3_i.i_prealloc_count--;
+		/* Writer: end */
+		ext3_debug ("preallocation hit (%lu/%lu).\n",
+			    ++alloc_hits, ++alloc_attempts);
+	} else {
+		ext3_discard_prealloc (inode);
+		ext3_debug ("preallocation miss (%lu/%lu).\n",
+			    alloc_hits, ++alloc_attempts);
+		if (S_ISREG(inode->i_mode))
+			result = ext3_new_block (inode, goal, 
+				 &inode->u.ext3_i.i_prealloc_count,
+				 &inode->u.ext3_i.i_prealloc_block, err);
+		else
+			result = ext3_new_block (inode, goal, 0, 0, err);
+		/*
+		 * AKPM: this is somewhat sticky.  I'm not surprised it was
+		 * disabled in 2.2's ext3.  Need to integrate b_committed_data
+		 * guarding with preallocation, if indeed preallocation is
+		 * effective.
+		 */
+	}
+#else
+	result = ext3_new_block (handle, inode, goal, 0, 0, err);
+#endif
+	return result;
+}
+
+
+typedef struct {
+	u32	*p;
+	u32	key;
+	struct buffer_head *bh;
+} Indirect;
+
+static inline void add_chain(Indirect *p, struct buffer_head *bh, u32 *v)
+{
+	p->key = *(p->p = v);
+	p->bh = bh;
+}
+
+static inline int verify_chain(Indirect *from, Indirect *to)
+{
+	while (from <= to && from->key == *from->p)
+		from++;
+	return (from > to);
+}
+
+/**
+ *	ext3_block_to_path - parse the block number into array of offsets
+ *	@inode: inode in question (we are only interested in its superblock)
+ *	@i_block: block number to be parsed
+ *	@offsets: array to store the offsets in
+ *
+ *	To store the locations of file's data ext3 uses a data structure common
+ *	for UNIX filesystems - tree of pointers anchored in the inode, with
+ *	data blocks at leaves and indirect blocks in intermediate nodes.
+ *	This function translates the block number into path in that tree -
+ *	return value is the path length and @offsets[n] is the offset of
+ *	pointer to (n+1)th node in the nth one. If @block is out of range
+ *	(negative or too large) warning is printed and zero returned.
+ *
+ *	Note: function doesn't find node addresses, so no IO is needed. All
+ *	we need to know is the capacity of indirect blocks (taken from the
+ *	inode->i_sb).
+ */
+
+/*
+ * Portability note: the last comparison (check that we fit into triple
+ * indirect block) is spelled differently, because otherwise on an
+ * architecture with 32-bit longs and 8Kb pages we might get into trouble
+ * if our filesystem had 8Kb blocks. We might use long long, but that would
+ * kill us on x86. Oh, well, at least the sign propagation does not matter -
+ * i_block would have to be negative in the very beginning, so we would not
+ * get there at all.
+ */
+
+static int ext3_block_to_path(struct inode *inode, long i_block, int offsets[4])
+{
+	int ptrs = EXT3_ADDR_PER_BLOCK(inode->i_sb);
+	int ptrs_bits = EXT3_ADDR_PER_BLOCK_BITS(inode->i_sb);
+	const long direct_blocks = EXT3_NDIR_BLOCKS,
+		indirect_blocks = ptrs,
+		double_blocks = (1 << (ptrs_bits * 2));
+	int n = 0;
+
+	if (i_block < 0) {
+		ext3_warning (inode->i_sb, "ext3_block_to_path", "block < 0");
+	} else if (i_block < direct_blocks) {
+		offsets[n++] = i_block;
+	} else if ( (i_block -= direct_blocks) < indirect_blocks) {
+		offsets[n++] = EXT3_IND_BLOCK;
+		offsets[n++] = i_block;
+	} else if ((i_block -= indirect_blocks) < double_blocks) {
+		offsets[n++] = EXT3_DIND_BLOCK;
+		offsets[n++] = i_block >> ptrs_bits;
+		offsets[n++] = i_block & (ptrs - 1);
+	} else if (((i_block -= double_blocks) >> (ptrs_bits * 2)) < ptrs) {
+		offsets[n++] = EXT3_TIND_BLOCK;
+		offsets[n++] = i_block >> (ptrs_bits * 2);
+		offsets[n++] = (i_block >> ptrs_bits) & (ptrs - 1);
+		offsets[n++] = i_block & (ptrs - 1);
+	} else {
+		ext3_warning (inode->i_sb, "ext3_block_to_path", "block > big");
+	}
+	return n;
+}
+
+/**
+ *	ext3_get_branch - read the chain of indirect blocks leading to data
+ *	@inode: inode in question
+ *	@depth: depth of the chain (1 - direct pointer, etc.)
+ *	@offsets: offsets of pointers in inode/indirect blocks
+ *	@chain: place to store the result
+ *	@err: here we store the error value
+ *
+ *	Function fills the array of triples <key, p, bh> and returns %NULL
+ *	if everything went OK or the pointer to the last filled triple
+ *	(incomplete one) otherwise. Upon the return chain[i].key contains
+ *	the number of (i+1)-th block in the chain (as it is stored in memory,
+ *	i.e. little-endian 32-bit), chain[i].p contains the address of that
+ *	number (it points into struct inode for i==0 and into the bh->b_data
+ *	for i>0) and chain[i].bh points to the buffer_head of i-th indirect
+ *	block for i>0 and NULL for i==0. In other words, it holds the block
+ *	numbers of the chain, addresses they were taken from (and where we can
+ *	verify that chain did not change) and buffer_heads hosting these
+ *	numbers.
+ *
+ *	Function stops when it stumbles upon zero pointer (absent block)
+ *		(pointer to last triple returned, *@err == 0)
+ *	or when it gets an IO error reading an indirect block
+ *		(ditto, *@err == -EIO)
+ *	or when it notices that chain had been changed while it was reading
+ *		(ditto, *@err == -EAGAIN)
+ *	or when it reads all @depth-1 indirect blocks successfully and finds
+ *	the whole chain, all way to the data (returns %NULL, *err == 0).
+ */
+static Indirect *ext3_get_branch(struct inode *inode, int depth, int *offsets,
+				 Indirect chain[4], int *err)
+{
+	struct super_block *sb = inode->i_sb;
+	Indirect *p = chain;
+	struct buffer_head *bh;
+
+	*err = 0;
+	/* i_data is not going away, no lock needed */
+	add_chain (chain, NULL, inode->u.ext3_i.i_data + *offsets);
+	if (!p->key)
+		goto no_block;
+	while (--depth) {
+		bh = sb_bread(sb, le32_to_cpu(p->key));
+		if (!bh)
+			goto failure;
+		/* Reader: pointers */
+		if (!verify_chain(chain, p))
+			goto changed;
+		add_chain(++p, bh, (u32*)bh->b_data + *++offsets);
+		/* Reader: end */
+		if (!p->key)
+			goto no_block;
+	}
+	return NULL;
+
+changed:
+	brelse(bh);
+	*err = -EAGAIN;
+	goto no_block;
+failure:
+	*err = -EIO;
+no_block:
+	return p;
+}
+
+/**
+ *	ext3_find_near - find a place for allocation with sufficient locality
+ *	@inode: owner
+ *	@ind: descriptor of indirect block.
+ *
+ *	This function returns the prefered place for block allocation.
+ *	It is used when heuristic for sequential allocation fails.
+ *	Rules are:
+ *	  + if there is a block to the left of our position - allocate near it.
+ *	  + if pointer will live in indirect block - allocate near that block.
+ *	  + if pointer will live in inode - allocate in the same
+ *	    cylinder group. 
+ *	Caller must make sure that @ind is valid and will stay that way.
+ */
+
+static inline unsigned long ext3_find_near(struct inode *inode, Indirect *ind)
+{
+	u32 *start = ind->bh ? (u32*) ind->bh->b_data : inode->u.ext3_i.i_data;
+	u32 *p;
+
+	/* Try to find previous block */
+	for (p = ind->p - 1; p >= start; p--)
+		if (*p)
+			return le32_to_cpu(*p);
+
+	/* No such thing, so let's try location of indirect block */
+	if (ind->bh)
+		return ind->bh->b_blocknr;
+
+	/*
+	 * It is going to be refered from inode itself? OK, just put it into
+	 * the same cylinder group then.
+	 */
+	return (inode->u.ext3_i.i_block_group * 
+		EXT3_BLOCKS_PER_GROUP(inode->i_sb)) +
+	       le32_to_cpu(inode->i_sb->u.ext3_sb.s_es->s_first_data_block);
+}
+
+/**
+ *	ext3_find_goal - find a prefered place for allocation.
+ *	@inode: owner
+ *	@block:  block we want
+ *	@chain:  chain of indirect blocks
+ *	@partial: pointer to the last triple within a chain
+ *	@goal:	place to store the result.
+ *
+ *	Normally this function find the prefered place for block allocation,
+ *	stores it in *@goal and returns zero. If the branch had been changed
+ *	under us we return -EAGAIN.
+ */
+
+static int ext3_find_goal(struct inode *inode, long block, Indirect chain[4],
+			  Indirect *partial, unsigned long *goal)
+{
+	/* Writer: ->i_next_alloc* */
+	if (block == inode->u.ext3_i.i_next_alloc_block + 1) {
+		inode->u.ext3_i.i_next_alloc_block++;
+		inode->u.ext3_i.i_next_alloc_goal++;
+	}
+#ifdef SEARCH_FROM_ZERO
+	inode->u.ext3_i.i_next_alloc_block = 0;
+	inode->u.ext3_i.i_next_alloc_goal = 0;
+#endif
+	/* Writer: end */
+	/* Reader: pointers, ->i_next_alloc* */
+	if (verify_chain(chain, partial)) {
+		/*
+		 * try the heuristic for sequential allocation,
+		 * failing that at least try to get decent locality.
+		 */
+		if (block == inode->u.ext3_i.i_next_alloc_block)
+			*goal = inode->u.ext3_i.i_next_alloc_goal;
+		if (!*goal)
+			*goal = ext3_find_near(inode, partial);
+#ifdef SEARCH_FROM_ZERO
+		*goal = 0;
+#endif
+		return 0;
+	}
+	/* Reader: end */
+	return -EAGAIN;
+}
+
+/**
+ *	ext3_alloc_branch - allocate and set up a chain of blocks.
+ *	@inode: owner
+ *	@num: depth of the chain (number of blocks to allocate)
+ *	@offsets: offsets (in the blocks) to store the pointers to next.
+ *	@branch: place to store the chain in.
+ *
+ *	This function allocates @num blocks, zeroes out all but the last one,
+ *	links them into chain and (if we are synchronous) writes them to disk.
+ *	In other words, it prepares a branch that can be spliced onto the
+ *	inode. It stores the information about that chain in the branch[], in
+ *	the same format as ext3_get_branch() would do. We are calling it after
+ *	we had read the existing part of chain and partial points to the last
+ *	triple of that (one with zero ->key). Upon the exit we have the same
+ *	picture as after the successful ext3_get_block(), excpet that in one
+ *	place chain is disconnected - *branch->p is still zero (we did not
+ *	set the last link), but branch->key contains the number that should
+ *	be placed into *branch->p to fill that gap.
+ *
+ *	If allocation fails we free all blocks we've allocated (and forget
+ *	their buffer_heads) and return the error value the from failed
+ *	ext3_alloc_block() (normally -ENOSPC). Otherwise we set the chain
+ *	as described above and return 0.
+ */
+
+static int ext3_alloc_branch(handle_t *handle, struct inode *inode,
+			     int num,
+			     unsigned long goal,
+			     int *offsets,
+			     Indirect *branch)
+{
+	int blocksize = inode->i_sb->s_blocksize;
+	int n = 0, keys = 0;
+	int err = 0;
+	int i;
+	int parent = ext3_alloc_block(handle, inode, goal, &err);
+
+	branch[0].key = cpu_to_le32(parent);
+	if (parent) {
+		for (n = 1; n < num; n++) {
+			struct buffer_head *bh;
+			/* Allocate the next block */
+			int nr = ext3_alloc_block(handle, inode, parent, &err);
+			if (!nr)
+				break;
+			branch[n].key = cpu_to_le32(nr);
+			keys = n+1;
+			
+			/*
+			 * Get buffer_head for parent block, zero it out
+			 * and set the pointer to new one, then send
+			 * parent to disk.  
+			 */
+			bh = sb_getblk(inode->i_sb, parent);
+			branch[n].bh = bh;
+			lock_buffer(bh);
+			BUFFER_TRACE(bh, "call get_create_access");
+			err = ext3_journal_get_create_access(handle, bh);
+			if (err) {
+				unlock_buffer(bh);
+				brelse(bh);
+				break;
+			}
+
+			memset(bh->b_data, 0, blocksize);
+			branch[n].p = (u32*) bh->b_data + offsets[n];
+			*branch[n].p = branch[n].key;
+			BUFFER_TRACE(bh, "marking uptodate");
+			mark_buffer_uptodate(bh, 1);
+			unlock_buffer(bh);
+
+			BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata");
+			err = ext3_journal_dirty_metadata(handle, bh);
+			if (err)
+				break;
+			
+			parent = nr;
+		}
+	}
+	if (n == num)
+		return 0;
+
+	/* Allocation failed, free what we already allocated */
+	for (i = 1; i < keys; i++) {
+		BUFFER_TRACE(branch[i].bh, "call journal_forget");
+		ext3_journal_forget(handle, branch[i].bh);
+	}
+	for (i = 0; i < keys; i++)
+		ext3_free_blocks(handle, inode, le32_to_cpu(branch[i].key), 1);
+	return err;
+}
+
+/**
+ *	ext3_splice_branch - splice the allocated branch onto inode.
+ *	@inode: owner
+ *	@block: (logical) number of block we are adding
+ *	@chain: chain of indirect blocks (with a missing link - see
+ *		ext3_alloc_branch)
+ *	@where: location of missing link
+ *	@num:   number of blocks we are adding
+ *
+ *	This function verifies that chain (up to the missing link) had not
+ *	changed, fills the missing link and does all housekeeping needed in
+ *	inode (->i_blocks, etc.). In case of success we end up with the full
+ *	chain to new block and return 0. Otherwise (== chain had been changed)
+ *	we free the new blocks (forgetting their buffer_heads, indeed) and
+ *	return -EAGAIN.
+ */
+
+static int ext3_splice_branch(handle_t *handle, struct inode *inode, long block,
+			      Indirect chain[4], Indirect *where, int num)
+{
+	int i;
+	int err = 0;
+
+	/*
+	 * If we're splicing into a [td]indirect block (as opposed to the
+	 * inode) then we need to get write access to the [td]indirect block
+	 * before the splice.
+	 */
+	if (where->bh) {
+		BUFFER_TRACE(where->bh, "get_write_access");
+		err = ext3_journal_get_write_access(handle, where->bh);
+		if (err)
+			goto err_out;
+	}
+	/* Verify that place we are splicing to is still there and vacant */
+
+	/* Writer: pointers, ->i_next_alloc* */
+	if (!verify_chain(chain, where-1) || *where->p)
+		/* Writer: end */
+		goto changed;
+
+	/* That's it */
+
+	*where->p = where->key;
+	inode->u.ext3_i.i_next_alloc_block = block;
+	inode->u.ext3_i.i_next_alloc_goal = le32_to_cpu(where[num-1].key);
+#ifdef SEARCH_FROM_ZERO
+	inode->u.ext3_i.i_next_alloc_block = 0;
+	inode->u.ext3_i.i_next_alloc_goal = 0;
+#endif
+	/* Writer: end */
+
+	/* We are done with atomic stuff, now do the rest of housekeeping */
+
+	inode->i_ctime = CURRENT_TIME;
+	ext3_mark_inode_dirty(handle, inode);
+
+	/* had we spliced it onto indirect block? */
+	if (where->bh) {
+		/*
+		 * akpm: If we spliced it onto an indirect block, we haven't
+		 * altered the inode.  Note however that if it is being spliced
+		 * onto an indirect block at the very end of the file (the
+		 * file is growing) then we *will* alter the inode to reflect
+		 * the new i_size.  But that is not done here - it is done in
+		 * generic_commit_write->__mark_inode_dirty->ext3_dirty_inode.
+		 */
+		jbd_debug(5, "splicing indirect only\n");
+		BUFFER_TRACE(where->bh, "call ext3_journal_dirty_metadata");
+		err = ext3_journal_dirty_metadata(handle, where->bh);
+		if (err) 
+			goto err_out;
+	} else {
+		/*
+		 * OK, we spliced it into the inode itself on a direct block.
+		 * Inode was dirtied above.
+		 */
+		jbd_debug(5, "splicing direct\n");
+	}
+	return err;
+
+changed:
+	/*
+	 * AKPM: if where[i].bh isn't part of the current updating
+	 * transaction then we explode nastily.  Test this code path.
+	 */
+	jbd_debug(1, "the chain changed: try again\n");
+	err = -EAGAIN;
+	
+err_out:
+	for (i = 1; i < num; i++) {
+		BUFFER_TRACE(where[i].bh, "call journal_forget");
+		ext3_journal_forget(handle, where[i].bh);
+	}
+	/* For the normal collision cleanup case, we free up the blocks.
+	 * On genuine filesystem errors we don't even think about doing
+	 * that. */
+	if (err == -EAGAIN)
+		for (i = 0; i < num; i++)
+			ext3_free_blocks(handle, inode, 
+					 le32_to_cpu(where[i].key), 1);
+	return err;
+}
+
+/*
+ * Allocation strategy is simple: if we have to allocate something, we will
+ * have to go the whole way to leaf. So let's do it before attaching anything
+ * to tree, set linkage between the newborn blocks, write them if sync is
+ * required, recheck the path, free and repeat if check fails, otherwise
+ * set the last missing link (that will protect us from any truncate-generated
+ * removals - all blocks on the path are immune now) and possibly force the
+ * write on the parent block.
+ * That has a nice additional property: no special recovery from the failed
+ * allocations is needed - we simply release blocks and do not touch anything
+ * reachable from inode.
+ *
+ * akpm: `handle' can be NULL if create == 0.
+ *
+ * The BKL may not be held on entry here.  Be sure to take it early.
+ */
+
+static int ext3_get_block_handle(handle_t *handle, struct inode *inode, 
+				 long iblock,
+				 struct buffer_head *bh_result, int create)
+{
+	int err = -EIO;
+	int offsets[4];
+	Indirect chain[4];
+	Indirect *partial;
+	unsigned long goal;
+	int left;
+	int depth = ext3_block_to_path(inode, iblock, offsets);
+	loff_t new_size;
+
+	J_ASSERT(handle != NULL || create == 0);
+
+	if (depth == 0)
+		goto out;
+
+	lock_kernel();
+reread:
+	partial = ext3_get_branch(inode, depth, offsets, chain, &err);
+
+	/* Simplest case - block found, no allocation needed */
+	if (!partial) {
+		bh_result->b_state &= ~(1UL << BH_New);
+got_it:
+		bh_result->b_dev = inode->i_dev;
+		bh_result->b_blocknr = le32_to_cpu(chain[depth-1].key);
+		bh_result->b_state |= (1UL << BH_Mapped);
+		/* Clean up and exit */
+		partial = chain+depth-1; /* the whole chain */
+		goto cleanup;
+	}
+
+	/* Next simple case - plain lookup or failed read of indirect block */
+	if (!create || err == -EIO) {
+cleanup:
+		while (partial > chain) {
+			BUFFER_TRACE(partial->bh, "call brelse");
+			brelse(partial->bh);
+			partial--;
+		}
+		BUFFER_TRACE(bh_result, "returned");
+		unlock_kernel();
+out:
+		return err;
+	}
+
+	/*
+	 * Indirect block might be removed by truncate while we were
+	 * reading it. Handling of that case (forget what we've got and
+	 * reread) is taken out of the main path.
+	 */
+	if (err == -EAGAIN)
+		goto changed;
+
+	goal = 0;
+	if (ext3_find_goal(inode, iblock, chain, partial, &goal) < 0)
+		goto changed;
+
+	left = (chain + depth) - partial;
+
+	/*
+	 * Block out ext3_truncate while we alter the tree
+	 */
+	down_read(&inode->u.ext3_i.truncate_sem);
+	err = ext3_alloc_branch(handle, inode, left, goal,
+					offsets+(partial-chain), partial);
+
+	/* The ext3_splice_branch call will free and forget any buffers
+	 * on the new chain if there is a failure, but that risks using
+	 * up transaction credits, especially for bitmaps where the
+	 * credits cannot be returned.  Can we handle this somehow?  We
+	 * may need to return -EAGAIN upwards in the worst case.  --sct */
+	if (!err)
+		err = ext3_splice_branch(handle, inode, iblock, chain,
+					 partial, left);
+	up_read(&inode->u.ext3_i.truncate_sem);
+	if (err == -EAGAIN)
+		goto changed;
+	if (err)
+		goto cleanup;
+
+	new_size = inode->i_size;
+	/*
+	 * This is not racy against ext3_truncate's modification of i_disksize
+	 * because VM/VFS ensures that the file cannot be extended while
+	 * truncate is in progress.  It is racy between multiple parallel
+	 * instances of get_block, but we have the BKL.
+	 */
+	if (new_size > inode->u.ext3_i.i_disksize)
+		inode->u.ext3_i.i_disksize = new_size;
+
+	bh_result->b_state |= (1UL << BH_New);
+	goto got_it;
+
+changed:
+	while (partial > chain) {
+		jbd_debug(1, "buffer chain changed, retrying\n");
+		BUFFER_TRACE(partial->bh, "brelsing");
+		brelse(partial->bh);
+		partial--;
+	}
+	goto reread;
+}
+
+/*
+ * The BKL is not held on entry here.
+ */
+static int ext3_get_block(struct inode *inode, long iblock,
+			struct buffer_head *bh_result, int create)
+{
+	handle_t *handle = 0;
+	int ret;
+
+	if (create) {
+		handle = ext3_journal_current_handle();
+		J_ASSERT(handle != 0);
+	}
+	ret = ext3_get_block_handle(handle, inode, iblock, bh_result, create);
+	return ret;
+}
+
+/*
+ * `handle' can be NULL if create is zero
+ */
+struct buffer_head *ext3_getblk(handle_t *handle, struct inode * inode,
+				long block, int create, int * errp)
+{
+	struct buffer_head dummy;
+	int fatal = 0, err;
+	
+	J_ASSERT(handle != NULL || create == 0);
+
+	dummy.b_state = 0;
+	dummy.b_blocknr = -1000;
+	buffer_trace_init(&dummy.b_history);
+	*errp = ext3_get_block_handle(handle, inode, block, &dummy, create);
+	if (!*errp && buffer_mapped(&dummy)) {
+		struct buffer_head *bh;
+		bh = sb_getblk(inode->i_sb, dummy.b_blocknr);
+		if (buffer_new(&dummy)) {
+			J_ASSERT(create != 0);
+			J_ASSERT(handle != 0);
+
+			/* Now that we do not always journal data, we
+			   should keep in mind whether this should
+			   always journal the new buffer as metadata.
+			   For now, regular file writes use
+			   ext3_get_block instead, so it's not a
+			   problem. */
+			lock_kernel();
+			lock_buffer(bh);
+			BUFFER_TRACE(bh, "call get_create_access");
+			fatal = ext3_journal_get_create_access(handle, bh);
+			if (!fatal) {
+				memset(bh->b_data, 0,
+				       inode->i_sb->s_blocksize);
+				mark_buffer_uptodate(bh, 1);
+			}
+			unlock_buffer(bh);
+			BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata");
+			err = ext3_journal_dirty_metadata(handle, bh);
+			if (!fatal) fatal = err;
+			unlock_kernel();
+		} else {
+			BUFFER_TRACE(bh, "not a new buffer");
+		}
+		if (fatal) {
+			*errp = fatal;
+			brelse(bh);
+			bh = NULL;
+		}
+		return bh;
+	}
+	return NULL;
+}
+
+struct buffer_head *ext3_bread(handle_t *handle, struct inode * inode,
+			       int block, int create, int *err)
+{
+	struct buffer_head * bh;
+	int prev_blocks;
+
+	prev_blocks = inode->i_blocks;
+
+	bh = ext3_getblk (handle, inode, block, create, err);
+	if (!bh)
+		return bh;
+#ifdef EXT3_PREALLOCATE
+	/*
+	 * If the inode has grown, and this is a directory, then use a few
+	 * more of the preallocated blocks to keep directory fragmentation
+	 * down.  The preallocated blocks are guaranteed to be contiguous.
+	 */
+	if (create &&
+	    S_ISDIR(inode->i_mode) &&
+	    inode->i_blocks > prev_blocks &&
+	    EXT3_HAS_COMPAT_FEATURE(inode->i_sb,
+				    EXT3_FEATURE_COMPAT_DIR_PREALLOC)) {
+		int i;
+		struct buffer_head *tmp_bh;
+
+		for (i = 1;
+		     inode->u.ext3_i.i_prealloc_count &&
+		     i < EXT3_SB(inode->i_sb)->s_es->s_prealloc_dir_blocks;
+		     i++) {
+			/*
+			 * ext3_getblk will zero out the contents of the
+			 * directory for us
+			 */
+			tmp_bh = ext3_getblk(handle, inode,
+						block+i, create, err);
+			if (!tmp_bh) {
+				brelse (bh);
+				return 0;
+			}
+			brelse (tmp_bh);
+		}
+	}
+#endif
+	if (buffer_uptodate(bh))
+		return bh;
+	ll_rw_block (READ, 1, &bh);
+	wait_on_buffer (bh);
+	if (buffer_uptodate(bh))
+		return bh;
+	brelse (bh);
+	*err = -EIO;
+	return NULL;
+}
+
+static int walk_page_buffers(	handle_t *handle,
+				struct inode *inode,
+				struct buffer_head *head,
+				unsigned from,
+				unsigned to,
+				int *partial,
+				int (*fn)(	handle_t *handle,
+						struct inode *inode,
+						struct buffer_head *bh))
+{
+	struct buffer_head *bh;
+	unsigned block_start, block_end;
+	unsigned blocksize = head->b_size;
+	int err, ret = 0;
+
+	for (	bh = head, block_start = 0;
+		ret == 0 && (bh != head || !block_start);
+	    	block_start = block_end, bh = bh->b_this_page)
+	{
+		block_end = block_start + blocksize;
+		if (block_end <= from || block_start >= to) {
+			if (partial && !buffer_uptodate(bh))
+				*partial = 1;
+			continue;
+		}
+		err = (*fn)(handle, inode, bh);
+		if (!ret)
+			ret = err;
+	}
+	return ret;
+}
+
+/*
+ * To preserve ordering, it is essential that the hole instantiation and
+ * the data write be encapsulated in a single transaction.  We cannot
+ * close off a transaction and start a new one between the ext3_get_block()
+ * and the commit_write().  So doing the journal_start at the start of
+ * prepare_write() is the right place.
+ *
+ * Also, this function can nest inside ext3_writepage() ->
+ * block_write_full_page(). In that case, we *know* that ext3_writepage()
+ * has generated enough buffer credits to do the whole page.  So we won't
+ * block on the journal in that case, which is good, because the caller may
+ * be PF_MEMALLOC.
+ *
+ * By accident, ext3 can be reentered when a transaction is open via
+ * quota file writes.  If we were to commit the transaction while thus
+ * reentered, there can be a deadlock - we would be holding a quota
+ * lock, and the commit would never complete if another thread had a
+ * transaction open and was blocking on the quota lock - a ranking
+ * violation.
+ *
+ * So what we do is to rely on the fact that journal_stop/journal_start
+ * will _not_ run commit under these circumstances because handle->h_ref
+ * is elevated.  We'll still have enough credits for the tiny quotafile
+ * write.  
+ */
+
+static int do_journal_get_write_access(handle_t *handle, struct inode *inode,
+				       struct buffer_head *bh)
+{
+	return ext3_journal_get_write_access(handle, bh);
+}
+
+static int ext3_prepare_write(struct file *file, struct page *page,
+			      unsigned from, unsigned to)
+{
+	struct inode *inode = page->mapping->host;
+	int ret, needed_blocks = ext3_writepage_trans_blocks(inode);
+	handle_t *handle;
+
+	lock_kernel();
+	handle = ext3_journal_start(inode, needed_blocks);
+	if (IS_ERR(handle)) {
+		ret = PTR_ERR(handle);
+		goto out;
+	}
+	unlock_kernel();
+	ret = block_prepare_write(page, from, to, ext3_get_block);
+	lock_kernel();
+	if (ret != 0)
+		goto prepare_write_failed;
+
+	if (ext3_should_journal_data(inode)) {
+		ret = walk_page_buffers(handle, inode, page->buffers,
+				from, to, NULL, do_journal_get_write_access);
+		if (ret) {
+			/*
+			 * We're going to fail this prepare_write(),
+			 * so commit_write() will not be called.
+			 * We need to undo block_prepare_write()'s kmap().
+			 * AKPM: Do we need to clear PageUptodate?  I don't
+			 * think so.
+			 */
+			kunmap(page);
+		}
+	}
+prepare_write_failed:
+	if (ret)
+		ext3_journal_stop(handle, inode);
+out:
+	unlock_kernel();
+	return ret;
+}
+
+static int journal_dirty_sync_data(handle_t *handle, struct inode *inode,
+				   struct buffer_head *bh)
+{
+	int ret = ext3_journal_dirty_data(handle, bh, 0);
+	buffer_insert_inode_data_queue(bh, inode);
+	return ret;
+}
+
+/*
+ * For ext3_writepage().  We also brelse() the buffer to account for
+ * the bget() which ext3_writepage() performs.
+ */
+static int journal_dirty_async_data(handle_t *handle, struct inode *inode, 
+				    struct buffer_head *bh)
+{
+	int ret = ext3_journal_dirty_data(handle, bh, 1);
+	buffer_insert_inode_data_queue(bh, inode);
+	__brelse(bh);
+	return ret;
+}
+
+/* For commit_write() in data=journal mode */
+static int commit_write_fn(handle_t *handle, struct inode *inode, 
+			   struct buffer_head *bh)
+{
+	set_bit(BH_Uptodate, &bh->b_state);
+	return ext3_journal_dirty_metadata(handle, bh);
+}
+
+/*
+ * We need to pick up the new inode size which generic_commit_write gave us
+ * `file' can be NULL - eg, when called from block_symlink().
+ *
+ * ext3 inode->i_dirty_buffers policy:  If we're journalling data we
+ * definitely don't want them to appear on the inode at all - instead
+ * we need to manage them at the JBD layer and we need to intercept
+ * the relevant sync operations and translate them into journal operations.
+ *
+ * If we're not journalling data then we can just leave the buffers
+ * on ->i_dirty_buffers.  If someone writes them out for us then thanks.
+ * Otherwise we'll do it in commit, if we're using ordered data.
+ */
+
+static int ext3_commit_write(struct file *file, struct page *page,
+			     unsigned from, unsigned to)
+{
+	handle_t *handle = ext3_journal_current_handle();
+	struct inode *inode = page->mapping->host;
+	int ret = 0, ret2;
+
+	lock_kernel();
+	if (ext3_should_journal_data(inode)) {
+		/*
+		 * Here we duplicate the generic_commit_write() functionality
+		 */
+		int partial = 0;
+		loff_t pos = ((loff_t)page->index << PAGE_CACHE_SHIFT) + to;
+
+		ret = walk_page_buffers(handle, inode, page->buffers,
+			from, to, &partial, commit_write_fn);
+		if (!partial)
+			SetPageUptodate(page);
+		kunmap(page);
+		if (pos > inode->i_size)
+			inode->i_size = pos;
+		EXT3_I(inode)->i_state |= EXT3_STATE_JDATA;
+	} else {
+		if (ext3_should_order_data(inode)) {
+			ret = walk_page_buffers(handle, inode, page->buffers,
+				from, to, NULL, journal_dirty_sync_data);
+		}
+		/* Be careful here if generic_commit_write becomes a
+		 * required invocation after block_prepare_write. */
+		if (ret == 0) {
+			ret = generic_commit_write(file, page, from, to);
+		} else {
+			/*
+			 * block_prepare_write() was called, but we're not
+			 * going to call generic_commit_write().  So we
+			 * need to perform generic_commit_write()'s kunmap
+			 * by hand.
+			 */
+			kunmap(page);
+		}
+	}
+	if (inode->i_size > inode->u.ext3_i.i_disksize) {
+		inode->u.ext3_i.i_disksize = inode->i_size;
+		ret2 = ext3_mark_inode_dirty(handle, inode);
+		if (!ret) 
+			ret = ret2;
+	}
+	ret2 = ext3_journal_stop(handle, inode);
+	unlock_kernel();
+	if (!ret)
+		ret = ret2;
+	return ret;
+}
+
+/* 
+ * bmap() is special.  It gets used by applications such as lilo and by
+ * the swapper to find the on-disk block of a specific piece of data.
+ *
+ * Naturally, this is dangerous if the block concerned is still in the
+ * journal.  If somebody makes a swapfile on an ext3 data-journaling
+ * filesystem and enables swap, then they may get a nasty shock when the
+ * data getting swapped to that swapfile suddenly gets overwritten by
+ * the original zero's written out previously to the journal and
+ * awaiting writeback in the kernel's buffer cache. 
+ *
+ * So, if we see any bmap calls here on a modified, data-journaled file,
+ * take extra steps to flush any blocks which might be in the cache. 
+ */
+static int ext3_bmap(struct address_space *mapping, long block)
+{
+	struct inode *inode = mapping->host;
+	journal_t *journal;
+	int err;
+	
+	if (EXT3_I(inode)->i_state & EXT3_STATE_JDATA) {
+		/* 
+		 * This is a REALLY heavyweight approach, but the use of
+		 * bmap on dirty files is expected to be extremely rare:
+		 * only if we run lilo or swapon on a freshly made file
+		 * do we expect this to happen. 
+		 *
+		 * (bmap requires CAP_SYS_RAWIO so this does not
+		 * represent an unprivileged user DOS attack --- we'd be
+		 * in trouble if mortal users could trigger this path at
+		 * will.) 
+		 *
+		 * NB. EXT3_STATE_JDATA is not set on files other than
+		 * regular files.  If somebody wants to bmap a directory
+		 * or symlink and gets confused because the buffer
+		 * hasn't yet been flushed to disk, they deserve
+		 * everything they get.
+		 */
+		
+		EXT3_I(inode)->i_state &= ~EXT3_STATE_JDATA;
+		journal = EXT3_JOURNAL(inode);
+		journal_lock_updates(journal);
+		err = journal_flush(journal);
+		journal_unlock_updates(journal);
+		
+		if (err)
+			return 0;
+	}
+	
+	return generic_block_bmap(mapping,block,ext3_get_block);
+}
+
+static int bget_one(handle_t *handle, struct inode *inode, 
+		    struct buffer_head *bh)
+{
+	atomic_inc(&bh->b_count);
+	return 0;
+}
+
+/*
+ * Note that we always start a transaction even if we're not journalling
+ * data.  This is to preserve ordering: any hole instantiation within
+ * __block_write_full_page -> ext3_get_block() should be journalled
+ * along with the data so we don't crash and then get metadata which
+ * refers to old data.
+ *
+ * In all journalling modes block_write_full_page() will start the I/O.
+ *
+ * Problem:
+ *
+ *	ext3_writepage() -> kmalloc() -> __alloc_pages() -> page_launder() ->
+ *		ext3_writepage()
+ *
+ * Similar for:
+ *
+ *	ext3_file_write() -> generic_file_write() -> __alloc_pages() -> ...
+ *
+ * Same applies to ext3_get_block().  We will deadlock on various things like
+ * lock_journal and i_truncate_sem.
+ *
+ * Setting PF_MEMALLOC here doesn't work - too many internal memory
+ * allocations fail.
+ *
+ * 16May01: If we're reentered then journal_current_handle() will be
+ *	    non-zero. We simply *return*.
+ *
+ * 1 July 2001: @@@ FIXME:
+ *   In journalled data mode, a data buffer may be metadata against the
+ *   current transaction.  But the same file is part of a shared mapping
+ *   and someone does a writepage() on it.
+ *
+ *   We will move the buffer onto the async_data list, but *after* it has
+ *   been dirtied. So there's a small window where we have dirty data on
+ *   BJ_Metadata.
+ *
+ *   Note that this only applies to the last partial page in the file.  The
+ *   bit which block_write_full_page() uses prepare/commit for.  (That's
+ *   broken code anyway: it's wrong for msync()).
+ *
+ *   It's a rare case: affects the final partial page, for journalled data
+ *   where the file is subject to bith write() and writepage() in the same
+ *   transction.  To fix it we'll need a custom block_write_full_page().
+ *   We'll probably need that anyway for journalling writepage() output.
+ *
+ * We don't honour synchronous mounts for writepage().  That would be
+ * disastrous.  Any write() or metadata operation will sync the fs for
+ * us.
+ */
+static int ext3_writepage(struct page *page)
+{
+	struct inode *inode = page->mapping->host;
+	struct buffer_head *page_buffers;
+	handle_t *handle = NULL;
+	int ret = 0, err;
+	int needed;
+	int order_data;
+
+	J_ASSERT(PageLocked(page));
+	
+	/*
+	 * We give up here if we're reentered, because it might be
+	 * for a different filesystem.  One *could* look for a
+	 * nested transaction opportunity.
+	 */
+	lock_kernel();
+	if (ext3_journal_current_handle())
+		goto out_fail;
+
+	needed = ext3_writepage_trans_blocks(inode);
+	if (current->flags & PF_MEMALLOC)
+		handle = ext3_journal_try_start(inode, needed);
+	else
+		handle = ext3_journal_start(inode, needed);
+				
+	if (IS_ERR(handle)) {
+		ret = PTR_ERR(handle);
+		goto out_fail;
+	}
+
+	order_data = ext3_should_order_data(inode) ||
+			ext3_should_journal_data(inode);
+
+	unlock_kernel();
+
+	page_buffers = NULL;	/* Purely to prevent compiler warning */
+
+	/* bget() all the buffers */
+	if (order_data) {
+		if (!page->buffers)
+			create_empty_buffers(page,
+				inode->i_dev, inode->i_sb->s_blocksize);
+		page_buffers = page->buffers;
+		walk_page_buffers(handle, inode, page_buffers, 0,
+				PAGE_CACHE_SIZE, NULL, bget_one);
+	}
+
+	ret = block_write_full_page(page, ext3_get_block);
+
+	/*
+	 * The page can become unlocked at any point now, and
+	 * truncate can then come in and change things.  So we
+	 * can't touch *page from now on.  But *page_buffers is
+	 * safe due to elevated refcount.
+	 */
+
+	handle = ext3_journal_current_handle();
+	lock_kernel();
+
+	/* And attach them to the current transaction */
+	if (order_data) {
+		err = walk_page_buffers(handle, inode, page_buffers,
+			0, PAGE_CACHE_SIZE, NULL, journal_dirty_async_data);
+		if (!ret)
+			ret = err;
+	}
+
+	err = ext3_journal_stop(handle, inode);
+	if (!ret)
+		ret = err;
+	unlock_kernel();
+	return ret;
+
+out_fail:
+	
+	unlock_kernel();
+	SetPageDirty(page);
+	UnlockPage(page);
+	return ret;
+}
+
+static int ext3_readpage(struct file *file, struct page *page)
+{
+	return block_read_full_page(page,ext3_get_block);
+}
+
+
+static int ext3_flushpage(struct page *page, unsigned long offset)
+{
+	journal_t *journal = EXT3_JOURNAL(page->mapping->host);
+	return journal_flushpage(journal, page, offset);
+}
+
+static int ext3_releasepage(struct page *page, int wait)
+{
+	journal_t *journal = EXT3_JOURNAL(page->mapping->host);
+	return journal_try_to_free_buffers(journal, page, wait);
+}
+
+
+struct address_space_operations ext3_aops = {
+	readpage:	ext3_readpage,		/* BKL not held.  Don't need */
+	writepage:	ext3_writepage,		/* BKL not held.  We take it */
+	sync_page:	block_sync_page,
+	prepare_write:	ext3_prepare_write,	/* BKL not held.  We take it */
+	commit_write:	ext3_commit_write,	/* BKL not held.  We take it */
+	bmap:		ext3_bmap,		/* BKL held */
+	flushpage:	ext3_flushpage,		/* BKL not held.  Don't need */
+	releasepage:	ext3_releasepage,	/* BKL not held.  Don't need */
+};
+
+/*
+ * ext3_block_truncate_page() zeroes out a mapping from file offset `from'
+ * up to the end of the block which corresponds to `from'.
+ * This required during truncate. We need to physically zero the tail end
+ * of that block so it doesn't yield old data if the file is later grown.
+ */
+static int ext3_block_truncate_page(handle_t *handle,
+		struct address_space *mapping, loff_t from)
+{
+	unsigned long index = from >> PAGE_CACHE_SHIFT;
+	unsigned offset = from & (PAGE_CACHE_SIZE-1);
+	unsigned blocksize, iblock, length, pos;
+	struct inode *inode = mapping->host;
+	struct page *page;
+	struct buffer_head *bh;
+	int err;
+
+	blocksize = inode->i_sb->s_blocksize;
+	length = offset & (blocksize - 1);
+
+	/* Block boundary? Nothing to do */
+	if (!length)
+		return 0;
+
+	length = blocksize - length;
+	iblock = index << (PAGE_CACHE_SHIFT - inode->i_sb->s_blocksize_bits);
+
+	page = find_or_create_page(mapping, index, GFP_NOFS);
+	err = -ENOMEM;
+	if (!page)
+		goto out;
+
+	if (!page->buffers)
+		create_empty_buffers(page, inode->i_dev, blocksize);
+
+	/* Find the buffer that contains "offset" */
+	bh = page->buffers;
+	pos = blocksize;
+	while (offset >= pos) {
+		bh = bh->b_this_page;
+		iblock++;
+		pos += blocksize;
+	}
+
+	err = 0;
+	if (!buffer_mapped(bh)) {
+		/* Hole? Nothing to do */
+		if (buffer_uptodate(bh))
+			goto unlock;
+		ext3_get_block(inode, iblock, bh, 0);
+		/* Still unmapped? Nothing to do */
+		if (!buffer_mapped(bh))
+			goto unlock;
+	}
+
+	/* Ok, it's mapped. Make sure it's up-to-date */
+	if (Page_Uptodate(page))
+		set_bit(BH_Uptodate, &bh->b_state);
+
+	if (!buffer_uptodate(bh)) {
+		err = -EIO;
+		ll_rw_block(READ, 1, &bh);
+		wait_on_buffer(bh);
+		/* Uhhuh. Read error. Complain and punt. */
+		if (!buffer_uptodate(bh))
+			goto unlock;
+	}
+
+	if (ext3_should_journal_data(inode)) {
+		BUFFER_TRACE(bh, "get write access");
+		err = ext3_journal_get_write_access(handle, bh);
+		if (err)
+			goto unlock;
+	}
+	
+	memset(kmap(page) + offset, 0, length);
+	flush_dcache_page(page);
+	kunmap(page);
+
+	BUFFER_TRACE(bh, "zeroed end of block");
+
+	err = 0;
+	if (ext3_should_journal_data(inode)) {
+		err = ext3_journal_dirty_metadata(handle, bh);
+	} else {
+		if (ext3_should_order_data(inode))
+			err = ext3_journal_dirty_data(handle, bh, 0);
+		__mark_buffer_dirty(bh);
+	}
+
+unlock:
+	UnlockPage(page);
+	page_cache_release(page);
+out:
+	return err;
+}
+
+/*
+ * Probably it should be a library function... search for first non-zero word
+ * or memcmp with zero_page, whatever is better for particular architecture.
+ * Linus?
+ */
+static inline int all_zeroes(u32 *p, u32 *q)
+{
+	while (p < q)
+		if (*p++)
+			return 0;
+	return 1;
+}
+
+/**
+ *	ext3_find_shared - find the indirect blocks for partial truncation.
+ *	@inode:	  inode in question
+ *	@depth:	  depth of the affected branch
+ *	@offsets: offsets of pointers in that branch (see ext3_block_to_path)
+ *	@chain:	  place to store the pointers to partial indirect blocks
+ *	@top:	  place to the (detached) top of branch
+ *
+ *	This is a helper function used by ext3_truncate().
+ *
+ *	When we do truncate() we may have to clean the ends of several
+ *	indirect blocks but leave the blocks themselves alive. Block is
+ *	partially truncated if some data below the new i_size is refered
+ *	from it (and it is on the path to the first completely truncated
+ *	data block, indeed).  We have to free the top of that path along
+ *	with everything to the right of the path. Since no allocation
+ *	past the truncation point is possible until ext3_truncate()
+ *	finishes, we may safely do the latter, but top of branch may
+ *	require special attention - pageout below the truncation point
+ *	might try to populate it.
+ *
+ *	We atomically detach the top of branch from the tree, store the
+ *	block number of its root in *@top, pointers to buffer_heads of
+ *	partially truncated blocks - in @chain[].bh and pointers to
+ *	their last elements that should not be removed - in
+ *	@chain[].p. Return value is the pointer to last filled element
+ *	of @chain.
+ *
+ *	The work left to caller to do the actual freeing of subtrees:
+ *		a) free the subtree starting from *@top
+ *		b) free the subtrees whose roots are stored in
+ *			(@chain[i].p+1 .. end of @chain[i].bh->b_data)
+ *		c) free the subtrees growing from the inode past the @chain[0].
+ *			(no partially truncated stuff there).  */
+
+static Indirect *ext3_find_shared(struct inode *inode,
+				int depth,
+				int offsets[4],
+				Indirect chain[4],
+				u32 *top)
+{
+	Indirect *partial, *p;
+	int k, err;
+
+	*top = 0;
+	/* Make k index the deepest non-null offest + 1 */
+	for (k = depth; k > 1 && !offsets[k-1]; k--)
+		;
+	partial = ext3_get_branch(inode, k, offsets, chain, &err);
+	/* Writer: pointers */
+	if (!partial)
+		partial = chain + k-1;
+	/*
+	 * If the branch acquired continuation since we've looked at it -
+	 * fine, it should all survive and (new) top doesn't belong to us.
+	 */
+	if (!partial->key && *partial->p)
+		/* Writer: end */
+		goto no_top;
+	for (p=partial; p>chain && all_zeroes((u32*)p->bh->b_data,p->p); p--)
+		;
+	/*
+	 * OK, we've found the last block that must survive. The rest of our
+	 * branch should be detached before unlocking. However, if that rest
+	 * of branch is all ours and does not grow immediately from the inode
+	 * it's easier to cheat and just decrement partial->p.
+	 */
+	if (p == chain + k - 1 && p > chain) {
+		p->p--;
+	} else {
+		*top = *p->p;
+		/* Nope, don't do this in ext3.  Must leave the tree intact */
+#if 0
+		*p->p = 0;
+#endif
+	}
+	/* Writer: end */
+
+	while(partial > p)
+	{
+		brelse(partial->bh);
+		partial--;
+	}
+no_top:
+	return partial;
+}
+
+/*
+ * Zero a number of block pointers in either an inode or an indirect block.
+ * If we restart the transaction we must again get write access to the
+ * indirect block for further modification.
+ *
+ * We release `count' blocks on disk, but (last - first) may be greater
+ * than `count' because there can be holes in there.
+ */
+static void
+ext3_clear_blocks(handle_t *handle, struct inode *inode, struct buffer_head *bh,
+		unsigned long block_to_free, unsigned long count,
+		u32 *first, u32 *last)
+{
+	u32 *p;
+	if (try_to_extend_transaction(handle, inode)) {
+		if (bh) {
+			BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata");
+			ext3_journal_dirty_metadata(handle, bh);
+		}
+		ext3_mark_inode_dirty(handle, inode);
+		ext3_journal_test_restart(handle, inode);
+		if (bh) {
+			BUFFER_TRACE(bh, "retaking write access");
+			ext3_journal_get_write_access(handle, bh);
+		}
+	}
+
+	/*
+	 * Any buffers which are on the journal will be in memory. We find
+	 * them on the hash table so journal_revoke() will run journal_forget()
+	 * on them.  We've already detached each block from the file, so
+	 * bforget() in journal_forget() should be safe.
+	 *
+	 * AKPM: turn on bforget in journal_forget()!!!
+	 */
+	for (p = first; p < last; p++) {
+		u32 nr = le32_to_cpu(*p);
+		if (nr) {
+			struct buffer_head *bh;
+
+			*p = 0;
+			bh = sb_get_hash_table(inode->i_sb, nr);
+			ext3_forget(handle, 0, inode, bh, nr);
+		}
+	}
+
+	ext3_free_blocks(handle, inode, block_to_free, count);
+}
+
+/**
+ * ext3_free_data - free a list of data blocks
+ * @handle:	handle for this transaction
+ * @inode:	inode we are dealing with
+ * @this_bh:	indirect buffer_head which contains *@first and *@last
+ * @first:	array of block numbers
+ * @last:	points immediately past the end of array
+ *
+ * We are freeing all blocks refered from that array (numbers are stored as
+ * little-endian 32-bit) and updating @inode->i_blocks appropriately.
+ *
+ * We accumulate contiguous runs of blocks to free.  Conveniently, if these
+ * blocks are contiguous then releasing them at one time will only affect one
+ * or two bitmap blocks (+ group descriptor(s) and superblock) and we won't
+ * actually use a lot of journal space.
+ *
+ * @this_bh will be %NULL if @first and @last point into the inode's direct
+ * block pointers.
+ */
+static void ext3_free_data(handle_t *handle, struct inode *inode,
+			   struct buffer_head *this_bh, u32 *first, u32 *last)
+{
+	unsigned long block_to_free = 0;    /* Starting block # of a run */
+	unsigned long count = 0;	    /* Number of blocks in the run */ 
+	u32 *block_to_free_p = NULL;	    /* Pointer into inode/ind
+					       corresponding to
+					       block_to_free */
+	unsigned long nr;		    /* Current block # */
+	u32 *p;				    /* Pointer into inode/ind
+					       for current block */
+	int err;
+
+	if (this_bh) {				/* For indirect block */
+		BUFFER_TRACE(this_bh, "get_write_access");
+		err = ext3_journal_get_write_access(handle, this_bh);
+		/* Important: if we can't update the indirect pointers
+		 * to the blocks, we can't free them. */
+		if (err)
+			return;
+	}
+
+	for (p = first; p < last; p++) {
+		nr = le32_to_cpu(*p);
+		if (nr) {
+			/* accumulate blocks to free if they're contiguous */
+			if (count == 0) {
+				block_to_free = nr;
+				block_to_free_p = p;
+				count = 1;
+			} else if (nr == block_to_free + count) {
+				count++;
+			} else {
+				ext3_clear_blocks(handle, inode, this_bh, 
+						  block_to_free,
+						  count, block_to_free_p, p);
+				block_to_free = nr;
+				block_to_free_p = p;
+				count = 1;
+			}
+		}
+	}
+
+	if (count > 0)
+		ext3_clear_blocks(handle, inode, this_bh, block_to_free,
+				  count, block_to_free_p, p);
+
+	if (this_bh) {
+		BUFFER_TRACE(this_bh, "call ext3_journal_dirty_metadata");
+		ext3_journal_dirty_metadata(handle, this_bh);
+	}
+}
+
+/**
+ *	ext3_free_branches - free an array of branches
+ *	@handle: JBD handle for this transaction
+ *	@inode:	inode we are dealing with
+ *	@parent_bh: the buffer_head which contains *@first and *@last
+ *	@first:	array of block numbers
+ *	@last:	pointer immediately past the end of array
+ *	@depth:	depth of the branches to free
+ *
+ *	We are freeing all blocks refered from these branches (numbers are
+ *	stored as little-endian 32-bit) and updating @inode->i_blocks
+ *	appropriately.
+ */
+static void ext3_free_branches(handle_t *handle, struct inode *inode,
+			       struct buffer_head *parent_bh,
+			       u32 *first, u32 *last, int depth)
+{
+	unsigned long nr;
+	u32 *p;
+
+	if (is_handle_aborted(handle))
+		return;
+	
+	if (depth--) {
+		struct buffer_head *bh;
+		int addr_per_block = EXT3_ADDR_PER_BLOCK(inode->i_sb);
+		p = last;
+		while (--p >= first) {
+			nr = le32_to_cpu(*p);
+			if (!nr)
+				continue;		/* A hole */
+
+			/* Go read the buffer for the next level down */
+			bh = sb_bread(inode->i_sb, nr);
+
+			/*
+			 * A read failure? Report error and clear slot
+			 * (should be rare).
+			 */
+			if (!bh) {
+				ext3_error(inode->i_sb, "ext3_free_branches",
+					   "Read failure, inode=%ld, block=%ld",
+					   inode->i_ino, nr);
+				continue;
+			}
+
+			/* This zaps the entire block.  Bottom up. */
+			BUFFER_TRACE(bh, "free child branches");
+			ext3_free_branches(handle, inode, bh, (u32*)bh->b_data,
+					   (u32*)bh->b_data + addr_per_block,
+					   depth);
+
+			/*
+			 * We've probably journalled the indirect block several
+			 * times during the truncate.  But it's no longer
+			 * needed and we now drop it from the transaction via
+			 * journal_revoke().
+			 *
+			 * That's easy if it's exclusively part of this
+			 * transaction.  But if it's part of the committing
+			 * transaction then journal_forget() will simply
+			 * brelse() it.  That means that if the underlying
+			 * block is reallocated in ext3_get_block(),
+			 * unmap_underlying_metadata() will find this block
+			 * and will try to get rid of it.  damn, damn.
+			 *
+			 * If this block has already been committed to the
+			 * journal, a revoke record will be written.  And
+			 * revoke records must be emitted *before* clearing
+			 * this block's bit in the bitmaps.
+			 */
+			ext3_forget(handle, 1, inode, bh, bh->b_blocknr);
+
+			/*
+			 * Everything below this this pointer has been
+			 * released.  Now let this top-of-subtree go.
+			 *
+			 * We want the freeing of this indirect block to be
+			 * atomic in the journal with the updating of the
+			 * bitmap block which owns it.  So make some room in
+			 * the journal.
+			 *
+			 * We zero the parent pointer *after* freeing its
+			 * pointee in the bitmaps, so if extend_transaction()
+			 * for some reason fails to put the bitmap changes and
+			 * the release into the same transaction, recovery
+			 * will merely complain about releasing a free block,
+			 * rather than leaking blocks.
+			 */
+			if (is_handle_aborted(handle))
+				return;
+			if (try_to_extend_transaction(handle, inode)) {
+				ext3_mark_inode_dirty(handle, inode);
+				ext3_journal_test_restart(handle, inode);
+			}
+
+			ext3_free_blocks(handle, inode, nr, 1);
+
+			if (parent_bh) {
+				/*
+				 * The block which we have just freed is
+				 * pointed to by an indirect block: journal it
+				 */
+				BUFFER_TRACE(parent_bh, "get_write_access");
+				if (!ext3_journal_get_write_access(handle,
+								   parent_bh)){
+					*p = 0;
+					BUFFER_TRACE(parent_bh,
+					"call ext3_journal_dirty_metadata");
+					ext3_journal_dirty_metadata(handle, 
+								    parent_bh);
+				}
+			}
+		}
+	} else {
+		/* We have reached the bottom of the tree. */
+		BUFFER_TRACE(parent_bh, "free data blocks");
+		ext3_free_data(handle, inode, parent_bh, first, last);
+	}
+}
+
+/*
+ * ext3_truncate()
+ *
+ * We block out ext3_get_block() block instantiations across the entire
+ * transaction, and VFS/VM ensures that ext3_truncate() cannot run
+ * simultaneously on behalf of the same inode.
+ *
+ * As we work through the truncate and commmit bits of it to the journal there
+ * is one core, guiding principle: the file's tree must always be consistent on
+ * disk.  We must be able to restart the truncate after a crash.
+ *
+ * The file's tree may be transiently inconsistent in memory (although it
+ * probably isn't), but whenever we close off and commit a journal transaction,
+ * the contents of (the filesystem + the journal) must be consistent and
+ * restartable.  It's pretty simple, really: bottom up, right to left (although
+ * left-to-right works OK too).
+ *
+ * Note that at recovery time, journal replay occurs *before* the restart of
+ * truncate against the orphan inode list.
+ *
+ * The committed inode has the new, desired i_size (which is the same as
+ * i_disksize in this case).  After a crash, ext3_orphan_cleanup() will see
+ * that this inode's truncate did not complete and it will again call
+ * ext3_truncate() to have another go.  So there will be instantiated blocks
+ * to the right of the truncation point in a crashed ext3 filesystem.  But
+ * that's fine - as long as they are linked from the inode, the post-crash
+ * ext3_truncate() run will find them and release them.
+ */
+
+void ext3_truncate(struct inode * inode)
+{
+	handle_t *handle;
+	u32 *i_data = inode->u.ext3_i.i_data;
+	int addr_per_block = EXT3_ADDR_PER_BLOCK(inode->i_sb);
+	int offsets[4];
+	Indirect chain[4];
+	Indirect *partial;
+	int nr = 0;
+	int n;
+	long last_block;
+	unsigned blocksize;
+
+	if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
+	    S_ISLNK(inode->i_mode)))
+		return;
+	if (ext3_inode_is_fast_symlink(inode))
+		return;
+	if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
+		return;
+
+	ext3_discard_prealloc(inode);
+
+	handle = start_transaction(inode);
+	if (IS_ERR(handle))
+		return;		/* AKPM: return what? */
+
+	blocksize = inode->i_sb->s_blocksize;
+	last_block = (inode->i_size + blocksize-1)
+					>> EXT3_BLOCK_SIZE_BITS(inode->i_sb);
+
+	ext3_block_truncate_page(handle, inode->i_mapping, inode->i_size);
+		
+
+	n = ext3_block_to_path(inode, last_block, offsets);
+	if (n == 0)
+		goto out_stop;	/* error */
+
+	/*
+	 * OK.  This truncate is going to happen.  We add the inode to the
+	 * orphan list, so that if this truncate spans multiple transactions,
+	 * and we crash, we will resume the truncate when the filesystem
+	 * recovers.  It also marks the inode dirty, to catch the new size.
+	 *
+	 * Implication: the file must always be in a sane, consistent
+	 * truncatable state while each transaction commits.
+	 */
+	if (ext3_orphan_add(handle, inode))
+		goto out_stop;
+
+	/*
+	 * The orphan list entry will now protect us from any crash which
+	 * occurs before the truncate completes, so it is now safe to propagate
+	 * the new, shorter inode size (held for now in i_size) into the
+	 * on-disk inode. We do this via i_disksize, which is the value which
+	 * ext3 *really* writes onto the disk inode.
+	 */
+	inode->u.ext3_i.i_disksize = inode->i_size;
+
+	/*
+	 * From here we block out all ext3_get_block() callers who want to
+	 * modify the block allocation tree.
+	 */
+	down_write(&inode->u.ext3_i.truncate_sem);
+
+	if (n == 1) {		/* direct blocks */
+		ext3_free_data(handle, inode, NULL, i_data+offsets[0],
+			       i_data + EXT3_NDIR_BLOCKS);
+		goto do_indirects;
+	}
+
+	partial = ext3_find_shared(inode, n, offsets, chain, &nr);
+	/* Kill the top of shared branch (not detached) */
+	if (nr) {
+		if (partial == chain) {
+			/* Shared branch grows from the inode */
+			ext3_free_branches(handle, inode, NULL,
+					   &nr, &nr+1, (chain+n-1) - partial);
+			*partial->p = 0;
+			/*
+			 * We mark the inode dirty prior to restart,
+			 * and prior to stop.  No need for it here.
+			 */
+		} else {
+			/* Shared branch grows from an indirect block */
+			BUFFER_TRACE(partial->bh, "get_write_access");
+			ext3_free_branches(handle, inode, partial->bh,
+					partial->p,
+					partial->p+1, (chain+n-1) - partial);
+		}
+	}
+	/* Clear the ends of indirect blocks on the shared branch */
+	while (partial > chain) {
+		ext3_free_branches(handle, inode, partial->bh, partial->p + 1,
+				   (u32*)partial->bh->b_data + addr_per_block,
+				   (chain+n-1) - partial);
+		BUFFER_TRACE(partial->bh, "call brelse");
+		brelse (partial->bh);
+		partial--;
+	}
+do_indirects:
+	/* Kill the remaining (whole) subtrees */
+	switch (offsets[0]) {
+		default:
+			nr = i_data[EXT3_IND_BLOCK];
+			if (nr) {
+				ext3_free_branches(handle, inode, NULL,
+						   &nr, &nr+1, 1);
+				i_data[EXT3_IND_BLOCK] = 0;
+			}
+		case EXT3_IND_BLOCK:
+			nr = i_data[EXT3_DIND_BLOCK];
+			if (nr) {
+				ext3_free_branches(handle, inode, NULL,
+						   &nr, &nr+1, 2);
+				i_data[EXT3_DIND_BLOCK] = 0;
+			}
+		case EXT3_DIND_BLOCK:
+			nr = i_data[EXT3_TIND_BLOCK];
+			if (nr) {
+				ext3_free_branches(handle, inode, NULL,
+						   &nr, &nr+1, 3);
+				i_data[EXT3_TIND_BLOCK] = 0;
+			}
+		case EXT3_TIND_BLOCK:
+			;
+	}
+	up_write(&inode->u.ext3_i.truncate_sem);
+	inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+	ext3_mark_inode_dirty(handle, inode);
+
+	/* In a multi-transaction truncate, we only make the final
+	 * transaction synchronous */
+	if (IS_SYNC(inode))
+		handle->h_sync = 1;
+out_stop:
+	/*
+	 * If this was a simple ftruncate(), and the file will remain alive
+	 * then we need to clear up the orphan record which we created above.
+	 * However, if this was a real unlink then we were called by
+	 * ext3_delete_inode(), and we allow that function to clean up the
+	 * orphan info for us.
+	 */
+	if (inode->i_nlink)
+		ext3_orphan_del(handle, inode);
+
+	ext3_journal_stop(handle, inode);
+}
+
+/* 
+ * ext3_get_inode_loc returns with an extra refcount against the
+ * inode's underlying buffer_head on success. 
+ */
+
+int ext3_get_inode_loc (struct inode *inode, struct ext3_iloc *iloc)
+{
+	struct buffer_head *bh = 0;
+	unsigned long block;
+	unsigned long block_group;
+	unsigned long group_desc;
+	unsigned long desc;
+	unsigned long offset;
+	struct ext3_group_desc * gdp;
+		
+	if ((inode->i_ino != EXT3_ROOT_INO &&
+		inode->i_ino != EXT3_ACL_IDX_INO &&
+		inode->i_ino != EXT3_ACL_DATA_INO &&
+		inode->i_ino != EXT3_JOURNAL_INO &&
+		inode->i_ino < EXT3_FIRST_INO(inode->i_sb)) ||
+		inode->i_ino > le32_to_cpu(
+			inode->i_sb->u.ext3_sb.s_es->s_inodes_count)) {
+		ext3_error (inode->i_sb, "ext3_get_inode_loc",
+			    "bad inode number: %lu", inode->i_ino);
+		goto bad_inode;
+	}
+	block_group = (inode->i_ino - 1) / EXT3_INODES_PER_GROUP(inode->i_sb);
+	if (block_group >= inode->i_sb->u.ext3_sb.s_groups_count) {
+		ext3_error (inode->i_sb, "ext3_get_inode_loc",
+			    "group >= groups count");
+		goto bad_inode;
+	}
+	group_desc = block_group >> EXT3_DESC_PER_BLOCK_BITS(inode->i_sb);
+	desc = block_group & (EXT3_DESC_PER_BLOCK(inode->i_sb) - 1);
+	bh = inode->i_sb->u.ext3_sb.s_group_desc[group_desc];
+	if (!bh) {
+		ext3_error (inode->i_sb, "ext3_get_inode_loc",
+			    "Descriptor not loaded");
+		goto bad_inode;
+	}
+
+	gdp = (struct ext3_group_desc *) bh->b_data;
+	/*
+	 * Figure out the offset within the block group inode table
+	 */
+	offset = ((inode->i_ino - 1) % EXT3_INODES_PER_GROUP(inode->i_sb)) *
+		EXT3_INODE_SIZE(inode->i_sb);
+	block = le32_to_cpu(gdp[desc].bg_inode_table) +
+		(offset >> EXT3_BLOCK_SIZE_BITS(inode->i_sb));
+	if (!(bh = sb_bread(inode->i_sb, block))) {
+		ext3_error (inode->i_sb, "ext3_get_inode_loc",
+			    "unable to read inode block - "
+			    "inode=%lu, block=%lu", inode->i_ino, block);
+		goto bad_inode;
+	}
+	offset &= (EXT3_BLOCK_SIZE(inode->i_sb) - 1);
+
+	iloc->bh = bh;
+	iloc->raw_inode = (struct ext3_inode *) (bh->b_data + offset);
+	iloc->block_group = block_group;
+	
+	return 0;
+	
+ bad_inode:
+	return -EIO;
+}
+
+void ext3_set_inode_flags(struct inode *inode)
+{
+	unsigned int flags = inode->u.ext3_i.i_flags;
+
+	inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME);
+	if (flags & EXT3_SYNC_FL)
+		inode->i_flags |= S_SYNC;
+	if (flags & EXT3_APPEND_FL)
+		inode->i_flags |= S_APPEND;
+	if (flags & EXT3_IMMUTABLE_FL)
+		inode->i_flags |= S_IMMUTABLE;
+	if (flags & EXT3_NOATIME_FL)
+		inode->i_flags |= S_NOATIME;
+}
+
+
+void ext3_read_inode(struct inode * inode)
+{
+	struct ext3_iloc iloc;
+	struct ext3_inode *raw_inode;
+	struct buffer_head *bh;
+	int block;
+	
+	if(ext3_get_inode_loc(inode, &iloc))
+		goto bad_inode;
+	bh = iloc.bh;
+	raw_inode = iloc.raw_inode;
+	init_rwsem(&inode->u.ext3_i.truncate_sem);
+	inode->i_mode = le16_to_cpu(raw_inode->i_mode);
+	inode->i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
+	inode->i_gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
+	if(!(test_opt (inode->i_sb, NO_UID32))) {
+		inode->i_uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
+		inode->i_gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
+	}
+	inode->i_nlink = le16_to_cpu(raw_inode->i_links_count);
+	inode->i_size = le32_to_cpu(raw_inode->i_size);
+	inode->i_atime = le32_to_cpu(raw_inode->i_atime);
+	inode->i_ctime = le32_to_cpu(raw_inode->i_ctime);
+	inode->i_mtime = le32_to_cpu(raw_inode->i_mtime);
+	inode->u.ext3_i.i_dtime = le32_to_cpu(raw_inode->i_dtime);
+	/* We now have enough fields to check if the inode was active or not.
+	 * This is needed because nfsd might try to access dead inodes
+	 * the test is that same one that e2fsck uses
+	 * NeilBrown 1999oct15
+	 */
+	if (inode->i_nlink == 0) {
+		if (inode->i_mode == 0 ||
+		    !(inode->i_sb->u.ext3_sb.s_mount_state & EXT3_ORPHAN_FS)) {
+			/* this inode is deleted */
+			brelse (bh);
+			goto bad_inode;
+		}
+		/* The only unlinked inodes we let through here have
+		 * valid i_mode and are being read by the orphan
+		 * recovery code: that's fine, we're about to complete
+		 * the process of deleting those. */
+	}
+	inode->i_blksize = PAGE_SIZE;	/* This is the optimal IO size
+					 * (for stat), not the fs block
+					 * size */  
+	inode->i_blocks = le32_to_cpu(raw_inode->i_blocks);
+	inode->i_version = ++event;
+	inode->u.ext3_i.i_flags = le32_to_cpu(raw_inode->i_flags);
+#ifdef EXT3_FRAGMENTS
+	inode->u.ext3_i.i_faddr = le32_to_cpu(raw_inode->i_faddr);
+	inode->u.ext3_i.i_frag_no = raw_inode->i_frag;
+	inode->u.ext3_i.i_frag_size = raw_inode->i_fsize;
+#endif
+	inode->u.ext3_i.i_file_acl = le32_to_cpu(raw_inode->i_file_acl);
+	if (!S_ISREG(inode->i_mode)) {
+		inode->u.ext3_i.i_dir_acl = le32_to_cpu(raw_inode->i_dir_acl);
+	} else {
+		inode->i_size |=
+			((__u64)le32_to_cpu(raw_inode->i_size_high)) << 32;
+	}
+	inode->u.ext3_i.i_disksize = inode->i_size;
+	inode->i_generation = le32_to_cpu(raw_inode->i_generation);
+#ifdef EXT3_PREALLOCATE
+	inode->u.ext3_i.i_prealloc_count = 0;
+#endif
+	inode->u.ext3_i.i_block_group = iloc.block_group;
+
+	/*
+	 * NOTE! The in-memory inode i_data array is in little-endian order
+	 * even on big-endian machines: we do NOT byteswap the block numbers!
+	 */
+	for (block = 0; block < EXT3_N_BLOCKS; block++)
+		inode->u.ext3_i.i_data[block] = iloc.raw_inode->i_block[block];
+	INIT_LIST_HEAD(&inode->u.ext3_i.i_orphan);
+
+	if (inode->i_ino == EXT3_ACL_IDX_INO ||
+	    inode->i_ino == EXT3_ACL_DATA_INO)
+		/* Nothing to do */ ;
+	else if (S_ISREG(inode->i_mode)) {
+		inode->i_op = &ext3_file_inode_operations;
+		inode->i_fop = &ext3_file_operations;
+		inode->i_mapping->a_ops = &ext3_aops;
+	} else if (S_ISDIR(inode->i_mode)) {
+		inode->i_op = &ext3_dir_inode_operations;
+		inode->i_fop = &ext3_dir_operations;
+	} else if (S_ISLNK(inode->i_mode)) {
+		if (ext3_inode_is_fast_symlink(inode))
+			inode->i_op = &ext3_fast_symlink_inode_operations;
+		else {
+			inode->i_op = &page_symlink_inode_operations;
+			inode->i_mapping->a_ops = &ext3_aops;
+		}
+	} else 
+		init_special_inode(inode, inode->i_mode,
+				   le32_to_cpu(iloc.raw_inode->i_block[0]));
+	brelse(iloc.bh);
+	ext3_set_inode_flags(inode);
+	return;
+	
+bad_inode:
+	make_bad_inode(inode);
+	return;
+}
+
+/*
+ * Post the struct inode info into an on-disk inode location in the
+ * buffer-cache.  This gobbles the caller's reference to the
+ * buffer_head in the inode location struct.  
+ */
+
+static int ext3_do_update_inode(handle_t *handle, 
+				struct inode *inode, 
+				struct ext3_iloc *iloc)
+{
+	struct ext3_inode *raw_inode = iloc->raw_inode;
+	struct buffer_head *bh = iloc->bh;
+	int err = 0, rc, block;
+
+	if (handle) {
+		BUFFER_TRACE(bh, "get_write_access");
+		err = ext3_journal_get_write_access(handle, bh);
+		if (err)
+			goto out_brelse;
+	}
+	/* For fields not not tracking in the in-memory inode,
+	 * initialise them to zero for new inodes. */
+	if (EXT3_I(inode)->i_state & EXT3_STATE_NEW)
+		memset(raw_inode, 0, EXT3_SB(inode->i_sb)->s_inode_size);
+
+	raw_inode->i_mode = cpu_to_le16(inode->i_mode);
+	if(!(test_opt(inode->i_sb, NO_UID32))) {
+		raw_inode->i_uid_low = cpu_to_le16(low_16_bits(inode->i_uid));
+		raw_inode->i_gid_low = cpu_to_le16(low_16_bits(inode->i_gid));
+/*
+ * Fix up interoperability with old kernels. Otherwise, old inodes get
+ * re-used with the upper 16 bits of the uid/gid intact
+ */
+		if(!inode->u.ext3_i.i_dtime) {
+			raw_inode->i_uid_high =
+				cpu_to_le16(high_16_bits(inode->i_uid));
+			raw_inode->i_gid_high =
+				cpu_to_le16(high_16_bits(inode->i_gid));
+		} else {
+			raw_inode->i_uid_high = 0;
+			raw_inode->i_gid_high = 0;
+		}
+	} else {
+		raw_inode->i_uid_low =
+			cpu_to_le16(fs_high2lowuid(inode->i_uid));
+		raw_inode->i_gid_low =
+			cpu_to_le16(fs_high2lowgid(inode->i_gid));
+		raw_inode->i_uid_high = 0;
+		raw_inode->i_gid_high = 0;
+	}
+	raw_inode->i_links_count = cpu_to_le16(inode->i_nlink);
+	raw_inode->i_size = cpu_to_le32(inode->u.ext3_i.i_disksize);
+	raw_inode->i_atime = cpu_to_le32(inode->i_atime);
+	raw_inode->i_ctime = cpu_to_le32(inode->i_ctime);
+	raw_inode->i_mtime = cpu_to_le32(inode->i_mtime);
+	raw_inode->i_blocks = cpu_to_le32(inode->i_blocks);
+	raw_inode->i_dtime = cpu_to_le32(inode->u.ext3_i.i_dtime);
+	raw_inode->i_flags = cpu_to_le32(inode->u.ext3_i.i_flags);
+#ifdef EXT3_FRAGMENTS
+	raw_inode->i_faddr = cpu_to_le32(inode->u.ext3_i.i_faddr);
+	raw_inode->i_frag = inode->u.ext3_i.i_frag_no;
+	raw_inode->i_fsize = inode->u.ext3_i.i_frag_size;
+#endif
+	raw_inode->i_file_acl = cpu_to_le32(inode->u.ext3_i.i_file_acl);
+	if (!S_ISREG(inode->i_mode)) {
+		raw_inode->i_dir_acl = cpu_to_le32(inode->u.ext3_i.i_dir_acl);
+	} else {
+		raw_inode->i_size_high =
+			cpu_to_le32(inode->u.ext3_i.i_disksize >> 32);
+		if (inode->u.ext3_i.i_disksize > 0x7fffffffULL) {
+			struct super_block *sb = inode->i_sb;
+			if (!EXT3_HAS_RO_COMPAT_FEATURE(sb,
+					EXT3_FEATURE_RO_COMPAT_LARGE_FILE) ||
+			    EXT3_SB(sb)->s_es->s_rev_level ==
+					cpu_to_le32(EXT3_GOOD_OLD_REV)) {
+			       /* If this is the first large file
+				* created, add a flag to the superblock.
+				*/
+				err = ext3_journal_get_write_access(handle,
+						sb->u.ext3_sb.s_sbh);
+				if (err)
+					goto out_brelse;
+				ext3_update_dynamic_rev(sb);
+				EXT3_SET_RO_COMPAT_FEATURE(sb,
+					EXT3_FEATURE_RO_COMPAT_LARGE_FILE);
+				sb->s_dirt = 1;
+				handle->h_sync = 1;
+				err = ext3_journal_dirty_metadata(handle,
+						sb->u.ext3_sb.s_sbh);
+			}
+		}
+	}
+	raw_inode->i_generation = cpu_to_le32(inode->i_generation);
+	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
+		raw_inode->i_block[0] =
+			cpu_to_le32(kdev_t_to_nr(inode->i_rdev));
+	else for (block = 0; block < EXT3_N_BLOCKS; block++)
+		raw_inode->i_block[block] = inode->u.ext3_i.i_data[block];
+
+	BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata");
+	rc = ext3_journal_dirty_metadata(handle, bh);
+	if (!err)
+		err = rc;
+	EXT3_I(inode)->i_state &= ~EXT3_STATE_NEW;
+
+out_brelse:
+	brelse (bh);
+	ext3_std_error(inode->i_sb, err);
+	return err;
+}
+
+/*
+ * ext3_write_inode()
+ *
+ * We are called from a few places:
+ *
+ * - Within generic_file_write() for O_SYNC files.
+ *   Here, there will be no transaction running. We wait for any running
+ *   trasnaction to commit.
+ *
+ * - Within sys_sync(), kupdate and such.
+ *   We wait on commit, if tol to.
+ *
+ * - Within prune_icache() (PF_MEMALLOC == true)
+ *   Here we simply return.  We can't afford to block kswapd on the
+ *   journal commit.
+ *
+ * In all cases it is actually safe for us to return without doing anything,
+ * because the inode has been copied into a raw inode buffer in
+ * ext3_mark_inode_dirty().  This is a correctness thing for O_SYNC and for
+ * knfsd.
+ *
+ * Note that we are absolutely dependent upon all inode dirtiers doing the
+ * right thing: they *must* call mark_inode_dirty() after dirtying info in
+ * which we are interested.
+ *
+ * It would be a bug for them to not do this.  The code:
+ *
+ *	mark_inode_dirty(inode)
+ *	stuff();
+ *	inode->i_size = expr;
+ *
+ * is in error because a kswapd-driven write_inode() could occur while
+ * `stuff()' is running, and the new i_size will be lost.  Plus the inode
+ * will no longer be on the superblock's dirty inode list.
+ */
+void ext3_write_inode(struct inode *inode, int wait)
+{
+	if (current->flags & PF_MEMALLOC)
+		return;
+
+	if (ext3_journal_current_handle()) {
+		jbd_debug(0, "called recursively, non-PF_MEMALLOC!\n");
+		return;
+	}
+
+	if (!wait)
+		return;
+
+	ext3_force_commit(inode->i_sb);	
+}
+
+/*
+ * ext3_setattr()
+ *
+ * Called from notify_change.
+ *
+ * We want to trap VFS attempts to truncate the file as soon as
+ * possible.  In particular, we want to make sure that when the VFS
+ * shrinks i_size, we put the inode on the orphan list and modify
+ * i_disksize immediately, so that during the subsequent flushing of
+ * dirty pages and freeing of disk blocks, we can guarantee that any
+ * commit will leave the blocks being flushed in an unused state on
+ * disk.  (On recovery, the inode will get truncated and the blocks will
+ * be freed, so we have a strong guarantee that no future commit will
+ * leave these blocks visible to the user.)  
+ *
+ * This is only needed for regular files.  rmdir() has its own path, and
+ * we can never truncate a direcory except on final unlink (at which
+ * point i_nlink is zero so recovery is easy.)
+ *
+ * Called with the BKL.  
+ */
+
+int ext3_setattr(struct dentry *dentry, struct iattr *attr)
+{
+	struct inode *inode = dentry->d_inode;
+	int error, rc = 0;
+	const unsigned int ia_valid = attr->ia_valid;
+
+	error = inode_change_ok(inode, attr);
+	if (error)
+		return error;
+
+	if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
+		(ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) {
+		error = DQUOT_TRANSFER(inode, attr) ? -EDQUOT : 0;
+		if (error)
+			return error;
+	}
+
+	if (attr->ia_valid & ATTR_SIZE && attr->ia_size < inode->i_size) {
+		handle_t *handle;
+
+		handle = ext3_journal_start(inode, 3);
+		if (IS_ERR(handle)) {
+			error = PTR_ERR(handle);
+			goto err_out;
+		}
+		
+		error = ext3_orphan_add(handle, inode);
+		inode->u.ext3_i.i_disksize = attr->ia_size;
+		rc = ext3_mark_inode_dirty(handle, inode);
+		if (!error)
+			error = rc;
+		ext3_journal_stop(handle, inode);
+	}
+	
+	rc = inode_setattr(inode, attr);
+
+	/* If inode_setattr's call to ext3_truncate failed to get a
+	 * transaction handle at all, we need to clean up the in-core
+	 * orphan list manually. */
+	if (inode->i_nlink)
+		ext3_orphan_del(NULL, inode);
+
+err_out:
+	ext3_std_error(inode->i_sb, error);
+	if (!error)
+		error = rc;
+	return error;
+}
+
+
+/*
+ * akpm: how many blocks doth make a writepage()?
+ *
+ * With N blocks per page, it may be:
+ * N data blocks
+ * 2 indirect block
+ * 2 dindirect
+ * 1 tindirect
+ * N+5 bitmap blocks (from the above)
+ * N+5 group descriptor summary blocks
+ * 1 inode block
+ * 1 superblock.
+ * 2 * EXT3_SINGLEDATA_TRANS_BLOCKS for the quote files
+ *
+ * 3 * (N + 5) + 2 + 2 * EXT3_SINGLEDATA_TRANS_BLOCKS
+ *
+ * With ordered or writeback data it's the same, less the N data blocks.
+ *
+ * If the inode's direct blocks can hold an integral number of pages then a
+ * page cannot straddle two indirect blocks, and we can only touch one indirect
+ * and dindirect block, and the "5" above becomes "3".
+ *
+ * This still overestimates under most circumstances.  If we were to pass the
+ * start and end offsets in here as well we could do block_to_path() on each
+ * block and work out the exact number of indirects which are touched.  Pah.
+ */
+
+int ext3_writepage_trans_blocks(struct inode *inode)
+{
+	int bpp = ext3_journal_blocks_per_page(inode);
+	int indirects = (EXT3_NDIR_BLOCKS % bpp) ? 5 : 3;
+	int ret;
+	
+	if (ext3_should_journal_data(inode))
+		ret = 3 * (bpp + indirects) + 2;
+	else
+		ret = 2 * (bpp + indirects) + 2;
+
+#ifdef CONFIG_QUOTA
+	ret += 2 * EXT3_SINGLEDATA_TRANS_BLOCKS;
+#endif
+
+	return ret;
+}
+
+int
+ext3_mark_iloc_dirty(handle_t *handle, 
+		     struct inode *inode,
+		     struct ext3_iloc *iloc)
+{
+	int err = 0;
+
+	if (handle) {
+		/* the do_update_inode consumes one bh->b_count */
+		atomic_inc(&iloc->bh->b_count);
+		err = ext3_do_update_inode(handle, inode, iloc);
+		/* ext3_do_update_inode() does journal_dirty_metadata */
+		brelse(iloc->bh);
+	} else {
+		printk(KERN_EMERG "%s: called with no handle!\n", __FUNCTION__);
+	}
+	return err;
+}
+
+/* 
+ * On success, We end up with an outstanding reference count against
+ * iloc->bh.  This _must_ be cleaned up later. 
+ */
+
+int
+ext3_reserve_inode_write(handle_t *handle, struct inode *inode, 
+			 struct ext3_iloc *iloc)
+{
+	int err = 0;
+	if (handle) {
+		err = ext3_get_inode_loc(inode, iloc);
+		if (!err) {
+			BUFFER_TRACE(iloc->bh, "get_write_access");
+			err = ext3_journal_get_write_access(handle, iloc->bh);
+			if (err) {
+				brelse(iloc->bh);
+				iloc->bh = NULL;
+			}
+		}
+	}
+	ext3_std_error(inode->i_sb, err);
+	return err;
+}
+
+/*
+ * akpm: What we do here is to mark the in-core inode as clean
+ * with respect to inode dirtiness (it may still be data-dirty).
+ * This means that the in-core inode may be reaped by prune_icache
+ * without having to perform any I/O.  This is a very good thing,
+ * because *any* task may call prune_icache - even ones which
+ * have a transaction open against a different journal.
+ *
+ * Is this cheating?  Not really.  Sure, we haven't written the
+ * inode out, but prune_icache isn't a user-visible syncing function.
+ * Whenever the user wants stuff synced (sys_sync, sys_msync, sys_fsync)
+ * we start and wait on commits.
+ *
+ * Is this efficient/effective?  Well, we're being nice to the system
+ * by cleaning up our inodes proactively so they can be reaped
+ * without I/O.  But we are potentially leaving up to five seconds'
+ * worth of inodes floating about which prune_icache wants us to
+ * write out.  One way to fix that would be to get prune_icache()
+ * to do a write_super() to free up some memory.  It has the desired
+ * effect.
+ */
+int ext3_mark_inode_dirty(handle_t *handle, struct inode *inode)
+{
+	struct ext3_iloc iloc;
+	int err;
+
+	err = ext3_reserve_inode_write(handle, inode, &iloc);
+	if (!err)
+		err = ext3_mark_iloc_dirty(handle, inode, &iloc);
+	return err;
+}
+
+/*
+ * akpm: ext3_dirty_inode() is called from __mark_inode_dirty()
+ *
+ * We're really interested in the case where a file is being extended.
+ * i_size has been changed by generic_commit_write() and we thus need
+ * to include the updated inode in the current transaction.
+ *
+ * Also, DQUOT_ALLOC_SPACE() will always dirty the inode when blocks
+ * are allocated to the file.
+ *
+ * If the inode is marked synchronous, we don't honour that here - doing
+ * so would cause a commit on atime updates, which we don't bother doing.
+ * We handle synchronous inodes at the highest possible level.
+ */
+void ext3_dirty_inode(struct inode *inode)
+{
+	handle_t *current_handle = ext3_journal_current_handle();
+	handle_t *handle;
+
+	lock_kernel();
+	handle = ext3_journal_start(inode, 2);
+	if (IS_ERR(handle))
+		goto out;
+	if (current_handle &&
+		current_handle->h_transaction != handle->h_transaction) {
+		/* This task has a transaction open against a different fs */
+		printk(KERN_EMERG "%s: transactions do not match!\n",
+			__FUNCTION__);
+	} else {
+		jbd_debug(5, "marking dirty.  outer handle=%p\n",
+				current_handle);
+		ext3_mark_inode_dirty(handle, inode);
+	}
+	ext3_journal_stop(handle, inode);
+out:
+	unlock_kernel();
+}
+
+#ifdef AKPM
+/* 
+ * Bind an inode's backing buffer_head into this transaction, to prevent
+ * it from being flushed to disk early.  Unlike
+ * ext3_reserve_inode_write, this leaves behind no bh reference and
+ * returns no iloc structure, so the caller needs to repeat the iloc
+ * lookup to mark the inode dirty later.
+ */
+static inline int
+ext3_pin_inode(handle_t *handle, struct inode *inode)
+{
+	struct ext3_iloc iloc;
+	
+	int err = 0;
+	if (handle) {
+		err = ext3_get_inode_loc(inode, &iloc);
+		if (!err) {
+			BUFFER_TRACE(iloc.bh, "get_write_access");
+			err = journal_get_write_access(handle, iloc.bh);
+			if (!err)
+				err = ext3_journal_dirty_metadata(handle, 
+								  iloc.bh);
+			brelse(iloc.bh);
+		}
+	}
+	ext3_std_error(inode->i_sb, err);
+	return err;
+}
+#endif
+
+int ext3_change_inode_journal_flag(struct inode *inode, int val)
+{
+	journal_t *journal;
+	handle_t *handle;
+	int err;
+
+	/*
+	 * We have to be very careful here: changing a data block's
+	 * journaling status dynamically is dangerous.  If we write a
+	 * data block to the journal, change the status and then delete
+	 * that block, we risk forgetting to revoke the old log record
+	 * from the journal and so a subsequent replay can corrupt data.
+	 * So, first we make sure that the journal is empty and that
+	 * nobody is changing anything.
+	 */
+
+	journal = EXT3_JOURNAL(inode);
+	if (is_journal_aborted(journal) || IS_RDONLY(inode))
+		return -EROFS;
+	
+	journal_lock_updates(journal);
+	journal_flush(journal);
+
+	/*
+	 * OK, there are no updates running now, and all cached data is
+	 * synced to disk.  We are now in a completely consistent state
+	 * which doesn't have anything in the journal, and we know that
+	 * no filesystem updates are running, so it is safe to modify
+	 * the inode's in-core data-journaling state flag now.
+	 */
+
+	if (val)
+		inode->u.ext3_i.i_flags |= EXT3_JOURNAL_DATA_FL;
+	else
+		inode->u.ext3_i.i_flags &= ~EXT3_JOURNAL_DATA_FL;
+
+	journal_unlock_updates(journal);
+
+	/* Finally we can mark the inode as dirty. */
+
+	handle = ext3_journal_start(inode, 1);
+	if (IS_ERR(handle))
+		return PTR_ERR(handle);
+
+	err = ext3_mark_inode_dirty(handle, inode);
+	handle->h_sync = 1;
+	ext3_journal_stop(handle, inode);
+	ext3_std_error(inode->i_sb, err);
+	
+	return err;
+}
+
+
+/*
+ * ext3_aops_journal_start().
+ *
+ * <This function died, but the comment lives on>
+ *
+ * We need to take the inode semaphore *outside* the
+ * journal_start/journal_stop.  Otherwise, a different task could do a
+ * wait_for_commit() while holding ->i_sem, which deadlocks.  The rule
+ * is: transaction open/closes are considered to be a locking operation
+ * and they nest *inside* ->i_sem.
+ * ----------------------------------------------------------------------------
+ * Possible problem:
+ *	ext3_file_write()
+ *	-> generic_file_write()
+ *	   -> __alloc_pages()
+ *	      -> page_launder()
+ *		 -> ext3_writepage()
+ *
+ * And the writepage can be on a different fs while we have a
+ * transaction open against this one!  Bad.
+ *
+ * I tried making the task PF_MEMALLOC here, but that simply results in
+ * 0-order allocation failures passed back to generic_file_write().
+ * Instead, we rely on the reentrancy protection in ext3_writepage().
+ * ----------------------------------------------------------------------------
+ * When we do the journal_start() here we don't really need to reserve
+ * any blocks - we won't need any until we hit ext3_prepare_write(),
+ * which does all the needed journal extending.  However!  There is a
+ * problem with quotas:
+ *
+ * Thread 1:
+ * sys_sync
+ * ->sync_dquots
+ *   ->commit_dquot
+ *     ->lock_dquot
+ *     ->write_dquot
+ *       ->ext3_file_write
+ *         ->journal_start
+ *         ->ext3_prepare_write
+ *           ->journal_extend
+ *           ->journal_start
+ * Thread 2:
+ * ext3_create		(for example)
+ * ->ext3_new_inode
+ *   ->dquot_initialize
+ *     ->lock_dquot
+ *
+ * Deadlock.  Thread 1's journal_start blocks because thread 2 has a
+ * transaction open.  Thread 2's transaction will never close because
+ * thread 2 is stuck waiting for the dquot lock.
+ *
+ * So.  We must ensure that thread 1 *never* needs to extend the journal
+ * for quota writes.  We do that by reserving enough journal blocks
+ * here, in ext3_aops_journal_start() to ensure that the forthcoming "see if we
+ * need to extend" test in ext3_prepare_write() succeeds.  
+ */
diff --git a/fs/ext3/ioctl.c b/fs/ext3/ioctl.c
new file mode 100644
index 00000000000000..601525ac80aa0a
--- /dev/null
+++ b/fs/ext3/ioctl.c
@@ -0,0 +1,155 @@
+/*
+ * linux/fs/ext3/ioctl.c
+ *
+ * Copyright (C) 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ */
+
+#include <linux/fs.h>
+#include <linux/jbd.h>
+#include <linux/ext3_fs.h>
+#include <linux/ext3_jbd.h>
+#include <linux/sched.h>
+#include <asm/uaccess.h>
+
+
+int ext3_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
+		unsigned long arg)
+{
+	unsigned int flags;
+
+	ext3_debug ("cmd = %u, arg = %lu\n", cmd, arg);
+
+	switch (cmd) {
+	case EXT3_IOC_GETFLAGS:
+		flags = inode->u.ext3_i.i_flags & EXT3_FL_USER_VISIBLE;
+		return put_user(flags, (int *) arg);
+	case EXT3_IOC_SETFLAGS: {
+		handle_t *handle = NULL;
+		int err;
+		struct ext3_iloc iloc;
+		unsigned int oldflags;
+		unsigned int jflag;
+
+		if (IS_RDONLY(inode))
+			return -EROFS;
+
+		if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+			return -EACCES;
+
+		if (get_user(flags, (int *) arg))
+			return -EFAULT;
+
+		oldflags = inode->u.ext3_i.i_flags;
+
+		/* The JOURNAL_DATA flag is modifiable only by root */
+		jflag = flags & EXT3_JOURNAL_DATA_FL;
+
+		/*
+		 * The IMMUTABLE and APPEND_ONLY flags can only be changed by
+		 * the relevant capability.
+		 *
+		 * This test looks nicer. Thanks to Pauline Middelink
+		 */
+		if ((flags ^ oldflags) & (EXT3_APPEND_FL | EXT3_IMMUTABLE_FL)) {
+			if (!capable(CAP_LINUX_IMMUTABLE))
+				return -EPERM;
+		}
+		
+		/*
+		 * The JOURNAL_DATA flag can only be changed by
+		 * the relevant capability.
+		 */
+		if ((jflag ^ oldflags) & (EXT3_JOURNAL_DATA_FL)) {
+			if (!capable(CAP_SYS_RESOURCE))
+				return -EPERM;
+		}
+
+
+		handle = ext3_journal_start(inode, 1);
+		if (IS_ERR(handle))
+			return PTR_ERR(handle);
+		if (IS_SYNC(inode))
+			handle->h_sync = 1;
+		err = ext3_reserve_inode_write(handle, inode, &iloc);
+		if (err)
+			goto flags_err;
+		
+		flags = flags & EXT3_FL_USER_MODIFIABLE;
+		flags |= oldflags & ~EXT3_FL_USER_MODIFIABLE;
+		inode->u.ext3_i.i_flags = flags;
+
+		ext3_set_inode_flags(inode);
+		inode->i_ctime = CURRENT_TIME;
+
+		err = ext3_mark_iloc_dirty(handle, inode, &iloc);
+flags_err:
+		ext3_journal_stop(handle, inode);
+		if (err)
+			return err;
+		
+		if ((jflag ^ oldflags) & (EXT3_JOURNAL_DATA_FL))
+			err = ext3_change_inode_journal_flag(inode, jflag);
+		return err;
+	}
+	case EXT3_IOC_GETVERSION:
+	case EXT3_IOC_GETVERSION_OLD:
+		return put_user(inode->i_generation, (int *) arg);
+	case EXT3_IOC_SETVERSION:
+	case EXT3_IOC_SETVERSION_OLD: {
+		handle_t *handle;
+		struct ext3_iloc iloc;
+		__u32 generation;
+		int err;
+
+		if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+			return -EPERM;
+		if (IS_RDONLY(inode))
+			return -EROFS;
+		if (get_user(generation, (int *) arg))
+			return -EFAULT;
+
+		handle = ext3_journal_start(inode, 1);
+		if (IS_ERR(handle))
+			return PTR_ERR(handle);
+		err = ext3_reserve_inode_write(handle, inode, &iloc);
+		if (err)
+			return err;
+
+		inode->i_ctime = CURRENT_TIME;
+		inode->i_generation = generation;
+
+		err = ext3_mark_iloc_dirty(handle, inode, &iloc);
+		ext3_journal_stop(handle, inode);
+		return err;
+	}
+#ifdef CONFIG_JBD_DEBUG
+	case EXT3_IOC_WAIT_FOR_READONLY:
+		/*
+		 * This is racy - by the time we're woken up and running,
+		 * the superblock could be released.  And the module could
+		 * have been unloaded.  So sue me.
+		 *
+		 * Returns 1 if it slept, else zero.
+		 */
+		{
+			struct super_block *sb = inode->i_sb;
+			DECLARE_WAITQUEUE(wait, current);
+			int ret = 0;
+
+			set_current_state(TASK_INTERRUPTIBLE);
+			add_wait_queue(&sb->u.ext3_sb.ro_wait_queue, &wait);
+			if (timer_pending(&sb->u.ext3_sb.turn_ro_timer)) {
+				schedule();
+				ret = 1;
+			}
+			remove_wait_queue(&sb->u.ext3_sb.ro_wait_queue, &wait);
+			return ret;
+		}
+#endif
+	default:
+		return -ENOTTY;
+	}
+}
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
new file mode 100644
index 00000000000000..20950ced5e0d1a
--- /dev/null
+++ b/fs/ext3/namei.c
@@ -0,0 +1,1124 @@
+/*
+ *  linux/fs/ext3/namei.c
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ *  from
+ *
+ *  linux/fs/minix/namei.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  Big-endian to little-endian byte-swapping/bitmaps by
+ *        David S. Miller (davem@caip.rutgers.edu), 1995
+ *  Directory entry file type support and forward compatibility hooks
+ *  	for B-tree directories by Theodore Ts'o (tytso@mit.edu), 1998
+ */
+
+#include <linux/fs.h>
+#include <linux/jbd.h>
+#include <linux/sched.h>
+#include <linux/ext3_fs.h>
+#include <linux/ext3_jbd.h>
+#include <linux/fcntl.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <linux/locks.h>
+#include <linux/quotaops.h>
+
+
+/*
+ * define how far ahead to read directories while searching them.
+ */
+#define NAMEI_RA_CHUNKS  2
+#define NAMEI_RA_BLOCKS  4
+#define NAMEI_RA_SIZE        (NAMEI_RA_CHUNKS * NAMEI_RA_BLOCKS)
+#define NAMEI_RA_INDEX(c,b)  (((c) * NAMEI_RA_BLOCKS) + (b))
+
+/*
+ * NOTE! unlike strncmp, ext3_match returns 1 for success, 0 for failure.
+ *
+ * `len <= EXT3_NAME_LEN' is guaranteed by caller.
+ * `de != NULL' is guaranteed by caller.
+ */
+static inline int ext3_match (int len, const char * const name,
+			      struct ext3_dir_entry_2 * de)
+{
+	if (len != de->name_len)
+		return 0;
+	if (!de->inode)
+		return 0;
+	return !memcmp(name, de->name, len);
+}
+
+/*
+ * Returns 0 if not found, -1 on failure, and 1 on success
+ */
+static int inline search_dirblock(struct buffer_head * bh,
+				  struct inode *dir,
+				  struct dentry *dentry,
+				  unsigned long offset,
+				  struct ext3_dir_entry_2 ** res_dir)
+{
+	struct ext3_dir_entry_2 * de;
+	char * dlimit;
+	int de_len;
+	const char *name = dentry->d_name.name;
+	int namelen = dentry->d_name.len;
+
+	de = (struct ext3_dir_entry_2 *) bh->b_data;
+	dlimit = bh->b_data + dir->i_sb->s_blocksize;
+	while ((char *) de < dlimit) {
+		/* this code is executed quadratically often */
+		/* do minimal checking `by hand' */
+
+		if ((char *) de + namelen <= dlimit &&
+		    ext3_match (namelen, name, de)) {
+			/* found a match - just to be sure, do a full check */
+			if (!ext3_check_dir_entry("ext3_find_entry",
+						  dir, de, bh, offset))
+				return -1;
+			*res_dir = de;
+			return 1;
+		}
+		/* prevent looping on a bad block */
+		de_len = le16_to_cpu(de->rec_len);
+		if (de_len <= 0)
+			return -1;
+		offset += de_len;
+		de = (struct ext3_dir_entry_2 *) ((char *) de + de_len);
+	}
+	return 0;
+}
+
+/*
+ *	ext3_find_entry()
+ *
+ * finds an entry in the specified directory with the wanted name. It
+ * returns the cache buffer in which the entry was found, and the entry
+ * itself (as a parameter - res_dir). It does NOT read the inode of the
+ * entry - you'll have to do that yourself if you want to.
+ *
+ * The returned buffer_head has ->b_count elevated.  The caller is expected
+ * to brelse() it when appropriate.
+ */
+static struct buffer_head * ext3_find_entry (struct dentry *dentry,
+					struct ext3_dir_entry_2 ** res_dir)
+{
+	struct super_block * sb;
+	struct buffer_head * bh_use[NAMEI_RA_SIZE];
+	struct buffer_head * bh, *ret = NULL;
+	unsigned long start, block, b;
+	int ra_max = 0;		/* Number of bh's in the readahead
+				   buffer, bh_use[] */
+	int ra_ptr = 0;		/* Current index into readahead
+				   buffer */
+	int num = 0;
+	int nblocks, i, err;
+	struct inode *dir = dentry->d_parent->d_inode;
+
+	*res_dir = NULL;
+	sb = dir->i_sb;
+
+	nblocks = dir->i_size >> EXT3_BLOCK_SIZE_BITS(sb);
+	start = dir->u.ext3_i.i_dir_start_lookup;
+	if (start >= nblocks)
+		start = 0;
+	block = start;
+restart:
+	do {
+		/*
+		 * We deal with the read-ahead logic here.
+		 */
+		if (ra_ptr >= ra_max) {
+			/* Refill the readahead buffer */
+			ra_ptr = 0;
+			b = block;
+			for (ra_max = 0; ra_max < NAMEI_RA_SIZE; ra_max++) {
+				/*
+				 * Terminate if we reach the end of the
+				 * directory and must wrap, or if our
+				 * search has finished at this block.
+				 */
+				if (b >= nblocks || (num && block == start)) {
+					bh_use[ra_max] = NULL;
+					break;
+				}
+				num++;
+				bh = ext3_getblk(NULL, dir, b++, 0, &err);
+				bh_use[ra_max] = bh;
+				if (bh)
+					ll_rw_block(READ, 1, &bh);
+			}
+		}
+		if ((bh = bh_use[ra_ptr++]) == NULL)
+			goto next;
+		wait_on_buffer(bh);
+		if (!buffer_uptodate(bh)) {
+			/* read error, skip block & hope for the best */
+			brelse(bh);
+			goto next;
+		}
+		i = search_dirblock(bh, dir, dentry,
+			    block << EXT3_BLOCK_SIZE_BITS(sb), res_dir);
+		if (i == 1) {
+			dir->u.ext3_i.i_dir_start_lookup = block;
+			ret = bh;
+			goto cleanup_and_exit;
+		} else {
+			brelse(bh);
+			if (i < 0)
+				goto cleanup_and_exit;
+		}
+	next:
+		if (++block >= nblocks)
+			block = 0;
+	} while (block != start);
+
+	/*
+	 * If the directory has grown while we were searching, then
+	 * search the last part of the directory before giving up.
+	 */
+	block = nblocks;
+	nblocks = dir->i_size >> EXT3_BLOCK_SIZE_BITS(sb);
+	if (block < nblocks) {
+		start = 0;
+		goto restart;
+	}
+		
+cleanup_and_exit:
+	/* Clean up the read-ahead blocks */
+	for (; ra_ptr < ra_max; ra_ptr++)
+		brelse (bh_use[ra_ptr]);
+	return ret;
+}
+
+static struct dentry *ext3_lookup(struct inode * dir, struct dentry *dentry)
+{
+	struct inode * inode;
+	struct ext3_dir_entry_2 * de;
+	struct buffer_head * bh;
+
+	if (dentry->d_name.len > EXT3_NAME_LEN)
+		return ERR_PTR(-ENAMETOOLONG);
+
+	bh = ext3_find_entry(dentry, &de);
+	inode = NULL;
+	if (bh) {
+		unsigned long ino = le32_to_cpu(de->inode);
+		brelse (bh);
+		inode = iget(dir->i_sb, ino);
+
+		if (!inode)
+			return ERR_PTR(-EACCES);
+	}
+	d_add(dentry, inode);
+	return NULL;
+}
+
+#define S_SHIFT 12
+static unsigned char ext3_type_by_mode[S_IFMT >> S_SHIFT] = {
+	[S_IFREG >> S_SHIFT]	EXT3_FT_REG_FILE,
+	[S_IFDIR >> S_SHIFT]	EXT3_FT_DIR,
+	[S_IFCHR >> S_SHIFT]	EXT3_FT_CHRDEV,
+	[S_IFBLK >> S_SHIFT]	EXT3_FT_BLKDEV,
+	[S_IFIFO >> S_SHIFT]	EXT3_FT_FIFO,
+	[S_IFSOCK >> S_SHIFT]	EXT3_FT_SOCK,
+	[S_IFLNK >> S_SHIFT]	EXT3_FT_SYMLINK,
+};
+
+static inline void ext3_set_de_type(struct super_block *sb,
+				struct ext3_dir_entry_2 *de,
+				umode_t mode) {
+	if (EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_FILETYPE))
+		de->file_type = ext3_type_by_mode[(mode & S_IFMT)>>S_SHIFT];
+}
+
+/*
+ *	ext3_add_entry()
+ *
+ * adds a file entry to the specified directory, using the same
+ * semantics as ext3_find_entry(). It returns NULL if it failed.
+ *
+ * NOTE!! The inode part of 'de' is left at 0 - which means you
+ * may not sleep between calling this and putting something into
+ * the entry, as someone else might have used it while you slept.
+ */
+
+/*
+ * AKPM: the journalling code here looks wrong on the error paths
+ */
+static int ext3_add_entry (handle_t *handle, struct dentry *dentry,
+	struct inode *inode)
+{
+	struct inode *dir = dentry->d_parent->d_inode;
+	const char *name = dentry->d_name.name;
+	int namelen = dentry->d_name.len;
+	unsigned long offset;
+	unsigned short rec_len;
+	struct buffer_head * bh;
+	struct ext3_dir_entry_2 * de, * de1;
+	struct super_block * sb;
+	int	retval;
+
+	sb = dir->i_sb;
+
+	if (!namelen)
+		return -EINVAL;
+	bh = ext3_bread (handle, dir, 0, 0, &retval);
+	if (!bh)
+		return retval;
+	rec_len = EXT3_DIR_REC_LEN(namelen);
+	offset = 0;
+	de = (struct ext3_dir_entry_2 *) bh->b_data;
+	while (1) {
+		if ((char *)de >= sb->s_blocksize + bh->b_data) {
+			brelse (bh);
+			bh = NULL;
+			bh = ext3_bread (handle, dir,
+				offset >> EXT3_BLOCK_SIZE_BITS(sb), 1, &retval);
+			if (!bh)
+				return retval;
+			if (dir->i_size <= offset) {
+				if (dir->i_size == 0) {
+					brelse(bh);
+					return -ENOENT;
+				}
+
+				ext3_debug ("creating next block\n");
+
+				BUFFER_TRACE(bh, "get_write_access");
+				ext3_journal_get_write_access(handle, bh);
+				de = (struct ext3_dir_entry_2 *) bh->b_data;
+				de->inode = 0;
+				de->rec_len = le16_to_cpu(sb->s_blocksize);
+				dir->u.ext3_i.i_disksize =
+					dir->i_size = offset + sb->s_blocksize;
+				dir->u.ext3_i.i_flags &= ~EXT3_INDEX_FL;
+				ext3_mark_inode_dirty(handle, dir);
+			} else {
+
+				ext3_debug ("skipping to next block\n");
+
+				de = (struct ext3_dir_entry_2 *) bh->b_data;
+			}
+		}
+		if (!ext3_check_dir_entry ("ext3_add_entry", dir, de, bh,
+					   offset)) {
+			brelse (bh);
+			return -ENOENT;
+		}
+		if (ext3_match (namelen, name, de)) {
+				brelse (bh);
+				return -EEXIST;
+		}
+		if ((le32_to_cpu(de->inode) == 0 &&
+				le16_to_cpu(de->rec_len) >= rec_len) ||
+		    (le16_to_cpu(de->rec_len) >=
+				EXT3_DIR_REC_LEN(de->name_len) + rec_len)) {
+			BUFFER_TRACE(bh, "get_write_access");
+			ext3_journal_get_write_access(handle, bh);
+			/* By now the buffer is marked for journaling */
+			offset += le16_to_cpu(de->rec_len);
+			if (le32_to_cpu(de->inode)) {
+				de1 = (struct ext3_dir_entry_2 *) ((char *) de +
+					EXT3_DIR_REC_LEN(de->name_len));
+				de1->rec_len =
+					cpu_to_le16(le16_to_cpu(de->rec_len) -
+					EXT3_DIR_REC_LEN(de->name_len));
+				de->rec_len = cpu_to_le16(
+						EXT3_DIR_REC_LEN(de->name_len));
+				de = de1;
+			}
+			de->file_type = EXT3_FT_UNKNOWN;
+			if (inode) {
+				de->inode = cpu_to_le32(inode->i_ino);
+				ext3_set_de_type(dir->i_sb, de, inode->i_mode);
+			} else
+				de->inode = 0;
+			de->name_len = namelen;
+			memcpy (de->name, name, namelen);
+			/*
+			 * XXX shouldn't update any times until successful
+			 * completion of syscall, but too many callers depend
+			 * on this.
+			 *
+			 * XXX similarly, too many callers depend on
+			 * ext3_new_inode() setting the times, but error
+			 * recovery deletes the inode, so the worst that can
+			 * happen is that the times are slightly out of date
+			 * and/or different from the directory change time.
+			 */
+			dir->i_mtime = dir->i_ctime = CURRENT_TIME;
+			dir->u.ext3_i.i_flags &= ~EXT3_INDEX_FL;
+			dir->i_version = ++event;
+			ext3_mark_inode_dirty(handle, dir);
+			BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata");
+			ext3_journal_dirty_metadata(handle, bh);
+			brelse(bh);
+			return 0;
+		}
+		offset += le16_to_cpu(de->rec_len);
+		de = (struct ext3_dir_entry_2 *)
+			((char *) de + le16_to_cpu(de->rec_len));
+	}
+	brelse (bh);
+	return -ENOSPC;
+}
+
+/*
+ * ext3_delete_entry deletes a directory entry by merging it with the
+ * previous entry
+ */
+static int ext3_delete_entry (handle_t *handle, 
+			      struct inode * dir,
+			      struct ext3_dir_entry_2 * de_del,
+			      struct buffer_head * bh)
+{
+	struct ext3_dir_entry_2 * de, * pde;
+	int i;
+
+	i = 0;
+	pde = NULL;
+	de = (struct ext3_dir_entry_2 *) bh->b_data;
+	while (i < bh->b_size) {
+		if (!ext3_check_dir_entry("ext3_delete_entry", dir, de, bh, i))
+			return -EIO;
+		if (de == de_del)  {
+			BUFFER_TRACE(bh, "get_write_access");
+			ext3_journal_get_write_access(handle, bh);
+			if (pde)
+				pde->rec_len =
+					cpu_to_le16(le16_to_cpu(pde->rec_len) +
+						    le16_to_cpu(de->rec_len));
+			else
+				de->inode = 0;
+			dir->i_version = ++event;
+			BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata");
+			ext3_journal_dirty_metadata(handle, bh);
+			return 0;
+		}
+		i += le16_to_cpu(de->rec_len);
+		pde = de;
+		de = (struct ext3_dir_entry_2 *)
+			((char *) de + le16_to_cpu(de->rec_len));
+	}
+	return -ENOENT;
+}
+
+/*
+ * ext3_mark_inode_dirty is somewhat expensive, so unlike ext2 we
+ * do not perform it in these functions.  We perform it at the call site,
+ * if it is needed.
+ */
+static inline void ext3_inc_count(handle_t *handle, struct inode *inode)
+{
+	inode->i_nlink++;
+}
+
+static inline void ext3_dec_count(handle_t *handle, struct inode *inode)
+{
+	inode->i_nlink--;
+}
+
+static int ext3_add_nondir(handle_t *handle,
+		struct dentry *dentry, struct inode *inode)
+{
+	int err = ext3_add_entry(handle, dentry, inode);
+	if (!err) {
+		err = ext3_mark_inode_dirty(handle, inode);
+		if (err == 0) {
+			d_instantiate(dentry, inode);
+			return 0;
+		}
+	}
+	ext3_dec_count(handle, inode);
+	iput(inode);
+	return err;
+}
+
+/*
+ * By the time this is called, we already have created
+ * the directory cache entry for the new file, but it
+ * is so far negative - it has no inode.
+ *
+ * If the create succeeds, we fill in the inode information
+ * with d_instantiate(). 
+ */
+static int ext3_create (struct inode * dir, struct dentry * dentry, int mode)
+{
+	handle_t *handle; 
+	struct inode * inode;
+	int err;
+
+	handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS + 3);
+	if (IS_ERR(handle))
+		return PTR_ERR(handle);
+
+	if (IS_SYNC(dir))
+		handle->h_sync = 1;
+
+	inode = ext3_new_inode (handle, dir, mode);
+	err = PTR_ERR(inode);
+	if (!IS_ERR(inode)) {
+		inode->i_op = &ext3_file_inode_operations;
+		inode->i_fop = &ext3_file_operations;
+		inode->i_mapping->a_ops = &ext3_aops;
+		err = ext3_add_nondir(handle, dentry, inode);
+	}
+	ext3_journal_stop(handle, dir);
+	return err;
+}
+
+static int ext3_mknod (struct inode * dir, struct dentry *dentry,
+			int mode, int rdev)
+{
+	handle_t *handle;
+	struct inode *inode;
+	int err;
+
+	handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS + 3);
+	if (IS_ERR(handle))
+		return PTR_ERR(handle);
+
+	if (IS_SYNC(dir))
+		handle->h_sync = 1;
+
+	inode = ext3_new_inode (handle, dir, mode);
+	err = PTR_ERR(inode);
+	if (!IS_ERR(inode)) {
+		init_special_inode(inode, mode, rdev);
+		err = ext3_add_nondir(handle, dentry, inode);
+	}
+	ext3_journal_stop(handle, dir);
+	return err;
+}
+
+static int ext3_mkdir(struct inode * dir, struct dentry * dentry, int mode)
+{
+	handle_t *handle;
+	struct inode * inode;
+	struct buffer_head * dir_block;
+	struct ext3_dir_entry_2 * de;
+	int err;
+
+	if (dir->i_nlink >= EXT3_LINK_MAX)
+		return -EMLINK;
+
+	handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS + 3);
+	if (IS_ERR(handle))
+		return PTR_ERR(handle);
+
+	if (IS_SYNC(dir))
+		handle->h_sync = 1;
+
+	inode = ext3_new_inode (handle, dir, S_IFDIR);
+	err = PTR_ERR(inode);
+	if (IS_ERR(inode))
+		goto out_stop;
+
+	inode->i_op = &ext3_dir_inode_operations;
+	inode->i_fop = &ext3_dir_operations;
+	inode->i_size = inode->u.ext3_i.i_disksize = inode->i_sb->s_blocksize;
+	inode->i_blocks = 0;	
+	dir_block = ext3_bread (handle, inode, 0, 1, &err);
+	if (!dir_block) {
+		inode->i_nlink--; /* is this nlink == 0? */
+		ext3_mark_inode_dirty(handle, inode);
+		iput (inode);
+		goto out_stop;
+	}
+	BUFFER_TRACE(dir_block, "get_write_access");
+	ext3_journal_get_write_access(handle, dir_block);
+	de = (struct ext3_dir_entry_2 *) dir_block->b_data;
+	de->inode = cpu_to_le32(inode->i_ino);
+	de->name_len = 1;
+	de->rec_len = cpu_to_le16(EXT3_DIR_REC_LEN(de->name_len));
+	strcpy (de->name, ".");
+	ext3_set_de_type(dir->i_sb, de, S_IFDIR);
+	de = (struct ext3_dir_entry_2 *)
+			((char *) de + le16_to_cpu(de->rec_len));
+	de->inode = cpu_to_le32(dir->i_ino);
+	de->rec_len = cpu_to_le16(inode->i_sb->s_blocksize-EXT3_DIR_REC_LEN(1));
+	de->name_len = 2;
+	strcpy (de->name, "..");
+	ext3_set_de_type(dir->i_sb, de, S_IFDIR);
+	inode->i_nlink = 2;
+	BUFFER_TRACE(dir_block, "call ext3_journal_dirty_metadata");
+	ext3_journal_dirty_metadata(handle, dir_block);
+	brelse (dir_block);
+	inode->i_mode = S_IFDIR | mode;
+	if (dir->i_mode & S_ISGID)
+		inode->i_mode |= S_ISGID;
+	ext3_mark_inode_dirty(handle, inode);
+	err = ext3_add_entry (handle, dentry, inode);
+	if (err)
+		goto out_no_entry;
+	dir->i_nlink++;
+	dir->u.ext3_i.i_flags &= ~EXT3_INDEX_FL;
+	ext3_mark_inode_dirty(handle, dir);
+	d_instantiate(dentry, inode);
+out_stop:
+	ext3_journal_stop(handle, dir);
+	return err;
+
+out_no_entry:
+	inode->i_nlink = 0;
+	ext3_mark_inode_dirty(handle, inode);
+	iput (inode);
+	goto out_stop;
+}
+
+/*
+ * routine to check that the specified directory is empty (for rmdir)
+ */
+static int empty_dir (struct inode * inode)
+{
+	unsigned long offset;
+	struct buffer_head * bh;
+	struct ext3_dir_entry_2 * de, * de1;
+	struct super_block * sb;
+	int err;
+
+	sb = inode->i_sb;
+	if (inode->i_size < EXT3_DIR_REC_LEN(1) + EXT3_DIR_REC_LEN(2) ||
+	    !(bh = ext3_bread (NULL, inode, 0, 0, &err))) {
+	    	ext3_warning (inode->i_sb, "empty_dir",
+			      "bad directory (dir #%lu) - no data block",
+			      inode->i_ino);
+		return 1;
+	}
+	de = (struct ext3_dir_entry_2 *) bh->b_data;
+	de1 = (struct ext3_dir_entry_2 *)
+			((char *) de + le16_to_cpu(de->rec_len));
+	if (le32_to_cpu(de->inode) != inode->i_ino ||
+			!le32_to_cpu(de1->inode) || 
+			strcmp (".", de->name) ||
+			strcmp ("..", de1->name)) {
+	    	ext3_warning (inode->i_sb, "empty_dir",
+			      "bad directory (dir #%lu) - no `.' or `..'",
+			      inode->i_ino);
+		brelse (bh);
+		return 1;
+	}
+	offset = le16_to_cpu(de->rec_len) + le16_to_cpu(de1->rec_len);
+	de = (struct ext3_dir_entry_2 *)
+			((char *) de1 + le16_to_cpu(de1->rec_len));
+	while (offset < inode->i_size ) {
+		if (!bh ||
+			(void *) de >= (void *) (bh->b_data+sb->s_blocksize)) {
+			brelse (bh);
+			bh = ext3_bread (NULL, inode,
+				offset >> EXT3_BLOCK_SIZE_BITS(sb), 0, &err);
+			if (!bh) {
+#if 0
+				ext3_error (sb, "empty_dir",
+				"directory #%lu contains a hole at offset %lu",
+					inode->i_ino, offset);
+#endif
+				offset += sb->s_blocksize;
+				continue;
+			}
+			de = (struct ext3_dir_entry_2 *) bh->b_data;
+		}
+		if (!ext3_check_dir_entry ("empty_dir", inode, de, bh,
+					   offset)) {
+			brelse (bh);
+			return 1;
+		}
+		if (le32_to_cpu(de->inode)) {
+			brelse (bh);
+			return 0;
+		}
+		offset += le16_to_cpu(de->rec_len);
+		de = (struct ext3_dir_entry_2 *)
+				((char *) de + le16_to_cpu(de->rec_len));
+	}
+	brelse (bh);
+	return 1;
+}
+
+/* ext3_orphan_add() links an unlinked or truncated inode into a list of
+ * such inodes, starting at the superblock, in case we crash before the
+ * file is closed/deleted, or in case the inode truncate spans multiple
+ * transactions and the last transaction is not recovered after a crash.
+ *
+ * At filesystem recovery time, we walk this list deleting unlinked
+ * inodes and truncating linked inodes in ext3_orphan_cleanup().
+ */
+int ext3_orphan_add(handle_t *handle, struct inode *inode)
+{
+	struct super_block *sb = inode->i_sb;
+	struct ext3_iloc iloc;
+	int err = 0, rc;
+	
+	lock_super(sb);
+	if (!list_empty(&inode->u.ext3_i.i_orphan))
+		goto out_unlock;
+
+	/* Orphan handling is only valid for files with data blocks
+	 * being truncated, or files being unlinked. */
+
+	/* @@@ FIXME: Observation from aviro:
+	 * I think I can trigger J_ASSERT in ext3_orphan_add().  We block 
+	 * here (on lock_super()), so race with ext3_link() which might bump
+	 * ->i_nlink. For, say it, character device. Not a regular file,
+	 * not a directory, not a symlink and ->i_nlink > 0.
+	 */
+	J_ASSERT ((S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
+		S_ISLNK(inode->i_mode)) || inode->i_nlink == 0);
+
+	BUFFER_TRACE(sb->u.ext3_sb.s_sbh, "get_write_access");
+	err = ext3_journal_get_write_access(handle, sb->u.ext3_sb.s_sbh);
+	if (err)
+		goto out_unlock;
+	
+	err = ext3_reserve_inode_write(handle, inode, &iloc);
+	if (err)
+		goto out_unlock;
+
+	/* Insert this inode at the head of the on-disk orphan list... */
+	NEXT_ORPHAN(inode) = le32_to_cpu(EXT3_SB(sb)->s_es->s_last_orphan);
+	EXT3_SB(sb)->s_es->s_last_orphan = cpu_to_le32(inode->i_ino);
+	err = ext3_journal_dirty_metadata(handle, sb->u.ext3_sb.s_sbh);
+	rc = ext3_mark_iloc_dirty(handle, inode, &iloc);
+	if (!err)
+		err = rc;
+
+	/* Only add to the head of the in-memory list if all the
+	 * previous operations succeeded.  If the orphan_add is going to
+	 * fail (possibly taking the journal offline), we can't risk
+	 * leaving the inode on the orphan list: stray orphan-list
+	 * entries can cause panics at unmount time.
+	 *
+	 * This is safe: on error we're going to ignore the orphan list
+	 * anyway on the next recovery. */
+	if (!err)
+		list_add(&inode->u.ext3_i.i_orphan, &EXT3_SB(sb)->s_orphan);
+
+	jbd_debug(4, "superblock will point to %ld\n", inode->i_ino);
+	jbd_debug(4, "orphan inode %ld will point to %d\n",
+			inode->i_ino, NEXT_ORPHAN(inode));
+out_unlock:
+	unlock_super(sb);
+	ext3_std_error(inode->i_sb, err);
+	return err;
+}
+
+/*
+ * ext3_orphan_del() removes an unlinked or truncated inode from the list
+ * of such inodes stored on disk, because it is finally being cleaned up.
+ */
+int ext3_orphan_del(handle_t *handle, struct inode *inode)
+{
+	struct list_head *prev;
+	struct ext3_sb_info *sbi;
+	unsigned long ino_next;
+	struct ext3_iloc iloc;
+	int err = 0;
+
+	lock_super(inode->i_sb);
+	if (list_empty(&inode->u.ext3_i.i_orphan)) {
+		unlock_super(inode->i_sb);
+		return 0;
+	}
+
+	ino_next = NEXT_ORPHAN(inode);
+	prev = inode->u.ext3_i.i_orphan.prev;
+	sbi = EXT3_SB(inode->i_sb);
+
+	jbd_debug(4, "remove inode %lu from orphan list\n", inode->i_ino);
+
+	list_del(&inode->u.ext3_i.i_orphan);
+	INIT_LIST_HEAD(&inode->u.ext3_i.i_orphan);
+
+	/* If we're on an error path, we may not have a valid
+	 * transaction handle with which to update the orphan list on
+	 * disk, but we still need to remove the inode from the linked
+	 * list in memory. */
+	if (!handle)
+		goto out;
+
+	err = ext3_reserve_inode_write(handle, inode, &iloc);
+	if (err)
+		goto out_err;
+
+	if (prev == &sbi->s_orphan) {
+		jbd_debug(4, "superblock will point to %lu\n", ino_next);
+		BUFFER_TRACE(sbi->s_sbh, "get_write_access");
+		err = ext3_journal_get_write_access(handle, sbi->s_sbh);
+		if (err)
+			goto out_brelse;
+		sbi->s_es->s_last_orphan = cpu_to_le32(ino_next);
+		err = ext3_journal_dirty_metadata(handle, sbi->s_sbh);
+	} else {
+		struct ext3_iloc iloc2;
+		struct inode *i_prev =
+			list_entry(prev, struct inode, u.ext3_i.i_orphan);
+
+		jbd_debug(4, "orphan inode %lu will point to %lu\n",
+			  i_prev->i_ino, ino_next);
+		err = ext3_reserve_inode_write(handle, i_prev, &iloc2);
+		if (err)
+			goto out_brelse;
+		NEXT_ORPHAN(i_prev) = ino_next;
+		err = ext3_mark_iloc_dirty(handle, i_prev, &iloc2);
+	}
+	if (err)
+		goto out_brelse;
+	NEXT_ORPHAN(inode) = 0;
+	err = ext3_mark_iloc_dirty(handle, inode, &iloc);
+	if (err)
+		goto out_brelse;
+
+out_err:
+	ext3_std_error(inode->i_sb, err);
+out:
+	unlock_super(inode->i_sb);
+	return err;
+
+out_brelse:
+	brelse(iloc.bh);
+	goto out_err;
+}
+
+static int ext3_rmdir (struct inode * dir, struct dentry *dentry)
+{
+	int retval;
+	struct inode * inode;
+	struct buffer_head * bh;
+	struct ext3_dir_entry_2 * de;
+	handle_t *handle;
+
+	handle = ext3_journal_start(dir, EXT3_DELETE_TRANS_BLOCKS);
+	if (IS_ERR(handle))
+		return PTR_ERR(handle);
+
+	retval = -ENOENT;
+	bh = ext3_find_entry (dentry, &de);
+	if (!bh)
+		goto end_rmdir;
+
+	if (IS_SYNC(dir))
+		handle->h_sync = 1;
+
+	inode = dentry->d_inode;
+	DQUOT_INIT(inode);
+
+	retval = -EIO;
+	if (le32_to_cpu(de->inode) != inode->i_ino)
+		goto end_rmdir;
+
+	retval = -ENOTEMPTY;
+	if (!empty_dir (inode))
+		goto end_rmdir;
+
+	retval = ext3_delete_entry(handle, dir, de, bh);
+	if (retval)
+		goto end_rmdir;
+	if (inode->i_nlink != 2)
+		ext3_warning (inode->i_sb, "ext3_rmdir",
+			      "empty directory has nlink!=2 (%d)",
+			      inode->i_nlink);
+	inode->i_version = ++event;
+	inode->i_nlink = 0;
+	/* There's no need to set i_disksize: the fact that i_nlink is
+	 * zero will ensure that the right thing happens during any
+	 * recovery. */
+	inode->i_size = 0;
+	ext3_orphan_add(handle, inode);
+	dir->i_nlink--;
+	inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+	ext3_mark_inode_dirty(handle, inode);
+	dir->u.ext3_i.i_flags &= ~EXT3_INDEX_FL;
+	ext3_mark_inode_dirty(handle, dir);
+
+end_rmdir:
+	ext3_journal_stop(handle, dir);
+	brelse (bh);
+	return retval;
+}
+
+static int ext3_unlink(struct inode * dir, struct dentry *dentry)
+{
+	int retval;
+	struct inode * inode;
+	struct buffer_head * bh;
+	struct ext3_dir_entry_2 * de;
+	handle_t *handle;
+
+	handle = ext3_journal_start(dir, EXT3_DELETE_TRANS_BLOCKS);
+	if (IS_ERR(handle))
+		return PTR_ERR(handle);
+
+	if (IS_SYNC(dir))
+		handle->h_sync = 1;
+
+	retval = -ENOENT;
+	bh = ext3_find_entry (dentry, &de);
+	if (!bh)
+		goto end_unlink;
+
+	inode = dentry->d_inode;
+	DQUOT_INIT(inode);
+
+	retval = -EIO;
+	if (le32_to_cpu(de->inode) != inode->i_ino)
+		goto end_unlink;
+	
+	if (!inode->i_nlink) {
+		ext3_warning (inode->i_sb, "ext3_unlink",
+			      "Deleting nonexistent file (%lu), %d",
+			      inode->i_ino, inode->i_nlink);
+		inode->i_nlink = 1;
+	}
+	retval = ext3_delete_entry(handle, dir, de, bh);
+	if (retval)
+		goto end_unlink;
+	dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+	dir->u.ext3_i.i_flags &= ~EXT3_INDEX_FL;
+	ext3_mark_inode_dirty(handle, dir);
+	inode->i_nlink--;
+	if (!inode->i_nlink)
+		ext3_orphan_add(handle, inode);
+	inode->i_ctime = dir->i_ctime;
+	ext3_mark_inode_dirty(handle, inode);
+	retval = 0;
+
+end_unlink:
+	ext3_journal_stop(handle, dir);
+	brelse (bh);
+	return retval;
+}
+
+static int ext3_symlink (struct inode * dir,
+		struct dentry *dentry, const char * symname)
+{
+	handle_t *handle;
+	struct inode * inode;
+	int l, err;
+
+	l = strlen(symname)+1;
+	if (l > dir->i_sb->s_blocksize)
+		return -ENAMETOOLONG;
+
+	handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS + 5);
+	if (IS_ERR(handle))
+		return PTR_ERR(handle);
+
+	if (IS_SYNC(dir))
+		handle->h_sync = 1;
+
+	inode = ext3_new_inode (handle, dir, S_IFLNK|S_IRWXUGO);
+	err = PTR_ERR(inode);
+	if (IS_ERR(inode))
+		goto out_stop;
+
+	if (l > sizeof (inode->u.ext3_i.i_data)) {
+		inode->i_op = &page_symlink_inode_operations;
+		inode->i_mapping->a_ops = &ext3_aops;
+		/*
+		 * block_symlink() calls back into ext3_prepare/commit_write.
+		 * We have a transaction open.  All is sweetness.  It also sets
+		 * i_size in generic_commit_write().
+		 */
+		err = block_symlink(inode, symname, l);
+		if (err)
+			goto out_no_entry;
+	} else {
+		inode->i_op = &ext3_fast_symlink_inode_operations;
+		memcpy((char*)&inode->u.ext3_i.i_data,symname,l);
+		inode->i_size = l-1;
+	}
+	inode->u.ext3_i.i_disksize = inode->i_size;
+	err = ext3_add_nondir(handle, dentry, inode);
+out_stop:
+	ext3_journal_stop(handle, dir);
+	return err;
+
+out_no_entry:
+	ext3_dec_count(handle, inode);
+	ext3_mark_inode_dirty(handle, inode);
+	iput (inode);
+	goto out_stop;
+}
+
+static int ext3_link (struct dentry * old_dentry,
+		struct inode * dir, struct dentry *dentry)
+{
+	handle_t *handle;
+	struct inode *inode = old_dentry->d_inode;
+	int err;
+
+	if (S_ISDIR(inode->i_mode))
+		return -EPERM;
+
+	if (inode->i_nlink >= EXT3_LINK_MAX)
+		return -EMLINK;
+
+	handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS);
+	if (IS_ERR(handle))
+		return PTR_ERR(handle);
+
+	if (IS_SYNC(dir))
+		handle->h_sync = 1;
+
+	inode->i_ctime = CURRENT_TIME;
+	ext3_inc_count(handle, inode);
+	atomic_inc(&inode->i_count);
+
+	err = ext3_add_nondir(handle, dentry, inode);
+	ext3_journal_stop(handle, dir);
+	return err;
+}
+
+#define PARENT_INO(buffer) \
+	((struct ext3_dir_entry_2 *) ((char *) buffer + \
+	le16_to_cpu(((struct ext3_dir_entry_2 *) buffer)->rec_len)))->inode
+
+/*
+ * Anybody can rename anything with this: the permission checks are left to the
+ * higher-level routines.
+ */
+static int ext3_rename (struct inode * old_dir, struct dentry *old_dentry,
+			   struct inode * new_dir,struct dentry *new_dentry)
+{
+	handle_t *handle;
+	struct inode * old_inode, * new_inode;
+	struct buffer_head * old_bh, * new_bh, * dir_bh;
+	struct ext3_dir_entry_2 * old_de, * new_de;
+	int retval;
+
+	old_bh = new_bh = dir_bh = NULL;
+
+	handle = ext3_journal_start(old_dir, 2 * EXT3_DATA_TRANS_BLOCKS + 2);
+	if (IS_ERR(handle))
+		return PTR_ERR(handle);
+
+	if (IS_SYNC(old_dir) || IS_SYNC(new_dir))
+		handle->h_sync = 1;
+
+	old_bh = ext3_find_entry (old_dentry, &old_de);
+	/*
+	 *  Check for inode number is _not_ due to possible IO errors.
+	 *  We might rmdir the source, keep it as pwd of some process
+	 *  and merrily kill the link to whatever was created under the
+	 *  same name. Goodbye sticky bit ;-<
+	 */
+	old_inode = old_dentry->d_inode;
+	retval = -ENOENT;
+	if (!old_bh || le32_to_cpu(old_de->inode) != old_inode->i_ino)
+		goto end_rename;
+
+	new_inode = new_dentry->d_inode;
+	new_bh = ext3_find_entry (new_dentry, &new_de);
+	if (new_bh) {
+		if (!new_inode) {
+			brelse (new_bh);
+			new_bh = NULL;
+		} else {
+			DQUOT_INIT(new_inode);
+		}
+	}
+	if (S_ISDIR(old_inode->i_mode)) {
+		if (new_inode) {
+			retval = -ENOTEMPTY;
+			if (!empty_dir (new_inode))
+				goto end_rename;
+		}
+		retval = -EIO;
+		dir_bh = ext3_bread (handle, old_inode, 0, 0, &retval);
+		if (!dir_bh)
+			goto end_rename;
+		if (le32_to_cpu(PARENT_INO(dir_bh->b_data)) != old_dir->i_ino)
+			goto end_rename;
+		retval = -EMLINK;
+		if (!new_inode && new_dir!=old_dir &&
+				new_dir->i_nlink >= EXT3_LINK_MAX)
+			goto end_rename;
+	}
+	if (!new_bh) {
+		retval = ext3_add_entry (handle, new_dentry, old_inode);
+		if (retval)
+			goto end_rename;
+	} else {
+		BUFFER_TRACE(new_bh, "get write access");
+		BUFFER_TRACE(new_bh, "get_write_access");
+		ext3_journal_get_write_access(handle, new_bh);
+		new_de->inode = le32_to_cpu(old_inode->i_ino);
+		if (EXT3_HAS_INCOMPAT_FEATURE(new_dir->i_sb,
+					      EXT3_FEATURE_INCOMPAT_FILETYPE))
+			new_de->file_type = old_de->file_type;
+		new_dir->i_version = ++event;
+		BUFFER_TRACE(new_bh, "call ext3_journal_dirty_metadata");
+		ext3_journal_dirty_metadata(handle, new_bh);
+		brelse(new_bh);
+		new_bh = NULL;
+	}
+
+	/*
+	 * Like most other Unix systems, set the ctime for inodes on a
+	 * rename.
+	 */
+	old_inode->i_ctime = CURRENT_TIME;
+	ext3_mark_inode_dirty(handle, old_inode);
+
+	/*
+	 * ok, that's it
+	 */
+	ext3_delete_entry(handle, old_dir, old_de, old_bh);
+
+	if (new_inode) {
+		new_inode->i_nlink--;
+		new_inode->i_ctime = CURRENT_TIME;
+	}
+	old_dir->i_ctime = old_dir->i_mtime = CURRENT_TIME;
+	old_dir->u.ext3_i.i_flags &= ~EXT3_INDEX_FL;
+	if (dir_bh) {
+		BUFFER_TRACE(dir_bh, "get_write_access");
+		ext3_journal_get_write_access(handle, dir_bh);
+		PARENT_INO(dir_bh->b_data) = le32_to_cpu(new_dir->i_ino);
+		BUFFER_TRACE(dir_bh, "call ext3_journal_dirty_metadata");
+		ext3_journal_dirty_metadata(handle, dir_bh);
+		old_dir->i_nlink--;
+		if (new_inode) {
+			new_inode->i_nlink--;
+		} else {
+			new_dir->i_nlink++;
+			new_dir->u.ext3_i.i_flags &= ~EXT3_INDEX_FL;
+			ext3_mark_inode_dirty(handle, new_dir);
+		}
+	}
+	ext3_mark_inode_dirty(handle, old_dir);
+	if (new_inode) {
+		ext3_mark_inode_dirty(handle, new_inode);
+		if (!new_inode->i_nlink)
+			ext3_orphan_add(handle, new_inode);
+	}
+	retval = 0;
+
+end_rename:
+	brelse (dir_bh);
+	brelse (old_bh);
+	brelse (new_bh);
+	ext3_journal_stop(handle, old_dir);
+	return retval;
+}
+
+/*
+ * directories can handle most operations...
+ */
+struct inode_operations ext3_dir_inode_operations = {
+	create:		ext3_create,		/* BKL held */
+	lookup:		ext3_lookup,		/* BKL held */
+	link:		ext3_link,		/* BKL held */
+	unlink:		ext3_unlink,		/* BKL held */
+	symlink:	ext3_symlink,		/* BKL held */
+	mkdir:		ext3_mkdir,		/* BKL held */
+	rmdir:		ext3_rmdir,		/* BKL held */
+	mknod:		ext3_mknod,		/* BKL held */
+	rename:		ext3_rename,		/* BKL held */
+};
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
new file mode 100644
index 00000000000000..33e2f9726cb458
--- /dev/null
+++ b/fs/ext3/super.c
@@ -0,0 +1,1854 @@
+/*
+ *  linux/fs/ext3/super.c
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ *  from
+ *
+ *  linux/fs/minix/inode.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  Big-endian to little-endian byte-swapping/bitmaps by
+ *        David S. Miller (davem@caip.rutgers.edu), 1995
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/fs.h>
+#include <linux/sched.h>
+#include <linux/jbd.h>
+#include <linux/ext3_fs.h>
+#include <linux/ext3_jbd.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/locks.h>
+#include <linux/blkdev.h>
+#include <linux/smp_lock.h>
+#include <linux/random.h>
+#include <asm/uaccess.h>
+
+#ifdef CONFIG_JBD_DEBUG
+static int ext3_ro_after; /* Make fs read-only after this many jiffies */
+#endif
+
+static int ext3_load_journal(struct super_block *, struct ext3_super_block *);
+static int ext3_create_journal(struct super_block *, struct ext3_super_block *,
+			       int);
+static void ext3_commit_super (struct super_block * sb,
+			       struct ext3_super_block * es,
+			       int sync);
+static void ext3_mark_recovery_complete(struct super_block * sb,
+					struct ext3_super_block * es);
+static void ext3_clear_journal_err(struct super_block * sb,
+				   struct ext3_super_block * es);
+
+static int ext3_sync_fs(struct super_block * sb);
+
+#ifdef CONFIG_JBD_DEBUG
+int journal_no_write[2];
+
+/*
+ * Debug code for turning filesystems "read-only" after a specified
+ * amount of time.  This is for crash/recovery testing.
+ */
+
+static void make_rdonly(kdev_t dev, int *no_write)
+{
+	if (dev) {
+		printk(KERN_WARNING "Turning device %s read-only\n", 
+		       bdevname(dev));
+		*no_write = 0xdead0000 + dev;
+	}
+}
+
+static void turn_fs_readonly(unsigned long arg)
+{
+	struct super_block *sb = (struct super_block *)arg;
+
+	make_rdonly(sb->s_dev, &journal_no_write[0]);
+	make_rdonly(EXT3_SB(sb)->s_journal->j_dev, &journal_no_write[1]);
+	wake_up(&EXT3_SB(sb)->ro_wait_queue);
+}
+
+static void setup_ro_after(struct super_block *sb)
+{
+	struct ext3_sb_info *sbi = EXT3_SB(sb);
+	init_timer(&sbi->turn_ro_timer);
+	if (ext3_ro_after) {
+		printk(KERN_DEBUG "fs will go read-only in %d jiffies\n",
+		       ext3_ro_after);
+		init_waitqueue_head(&sbi->ro_wait_queue);
+		journal_no_write[0] = 0;
+		journal_no_write[1] = 0;
+		sbi->turn_ro_timer.function = turn_fs_readonly;
+		sbi->turn_ro_timer.data = (unsigned long)sb;
+		sbi->turn_ro_timer.expires = jiffies + ext3_ro_after;
+		ext3_ro_after = 0;
+		add_timer(&sbi->turn_ro_timer);
+	}
+}
+
+static void clear_ro_after(struct super_block *sb)
+{
+	del_timer_sync(&EXT3_SB(sb)->turn_ro_timer);
+	journal_no_write[0] = 0;
+	journal_no_write[1] = 0;
+	ext3_ro_after = 0;
+}
+#else
+#define setup_ro_after(sb)	do {} while (0)
+#define clear_ro_after(sb)	do {} while (0)
+#endif
+
+
+static char error_buf[1024];
+
+/* Determine the appropriate response to ext3_error on a given filesystem */
+
+static int ext3_error_behaviour(struct super_block *sb)
+{
+	/* First check for mount-time options */
+	if (test_opt (sb, ERRORS_PANIC))
+		return EXT3_ERRORS_PANIC;
+	if (test_opt (sb, ERRORS_RO))
+		return EXT3_ERRORS_RO;
+	if (test_opt (sb, ERRORS_CONT))
+		return EXT3_ERRORS_CONTINUE;
+	
+	/* If no overrides were specified on the mount, then fall back
+	 * to the default behaviour set in the filesystem's superblock
+	 * on disk. */
+	switch (le16_to_cpu(sb->u.ext3_sb.s_es->s_errors)) {
+	case EXT3_ERRORS_PANIC:
+		return EXT3_ERRORS_PANIC;
+	case EXT3_ERRORS_RO:
+		return EXT3_ERRORS_RO;
+	default:
+		break;
+	}
+	return EXT3_ERRORS_CONTINUE;
+}
+
+/* Deal with the reporting of failure conditions on a filesystem such as
+ * inconsistencies detected or read IO failures.
+ *
+ * On ext2, we can store the error state of the filesystem in the
+ * superblock.  That is not possible on ext3, because we may have other
+ * write ordering constraints on the superblock which prevent us from
+ * writing it out straight away; and given that the journal is about to
+ * be aborted, we can't rely on the current, or future, transactions to
+ * write out the superblock safely.
+ *
+ * We'll just use the journal_abort() error code to record an error in
+ * the journal instead.  On recovery, the journal will compain about
+ * that error until we've noted it down and cleared it.
+ */
+
+static void ext3_handle_error(struct super_block *sb)
+{
+	struct ext3_super_block *es = EXT3_SB(sb)->s_es;
+
+	EXT3_SB(sb)->s_mount_state |= EXT3_ERROR_FS;
+	es->s_state |= cpu_to_le32(EXT3_ERROR_FS);
+
+	if (sb->s_flags & MS_RDONLY)
+		return;
+
+	if (ext3_error_behaviour(sb) != EXT3_ERRORS_CONTINUE) {
+		EXT3_SB(sb)->s_mount_opt |= EXT3_MOUNT_ABORT;
+		journal_abort(EXT3_SB(sb)->s_journal, -EIO);
+	}
+
+	if (ext3_error_behaviour(sb) == EXT3_ERRORS_PANIC) 
+		panic ("EXT3-fs (device %s): panic forced after error\n",
+		       bdevname(sb->s_dev));
+
+	if (ext3_error_behaviour(sb) == EXT3_ERRORS_RO) {
+		printk (KERN_CRIT "Remounting filesystem read-only\n");
+		sb->s_flags |= MS_RDONLY;
+	}
+
+	ext3_commit_super(sb, es, 1);
+}
+
+void ext3_error (struct super_block * sb, const char * function,
+		 const char * fmt, ...)
+{
+	va_list args;
+
+	va_start (args, fmt);
+	vsprintf (error_buf, fmt, args);
+	va_end (args);
+
+	printk (KERN_CRIT "EXT3-fs error (device %s): %s: %s\n",
+		bdevname(sb->s_dev), function, error_buf);
+
+	ext3_handle_error(sb);
+}
+
+const char *ext3_decode_error(struct super_block * sb, int errno, char nbuf[16])
+{
+	char *errstr = NULL;
+	
+	switch (errno) {
+	case -EIO:
+		errstr = "IO failure";
+		break;
+	case -ENOMEM:
+		errstr = "Out of memory";
+		break;
+	case -EROFS:
+		if (!sb || EXT3_SB(sb)->s_journal->j_flags & JFS_ABORT)
+			errstr = "Journal has aborted";
+		else
+			errstr = "Readonly filesystem";
+		break;
+	default:
+		/* If the caller passed in an extra buffer for unknown
+		 * errors, textualise them now.  Else we just return
+		 * NULL. */
+		if (nbuf) {
+			/* Check for truncated error codes... */
+			if (snprintf(nbuf, 16, "error %d", -errno) >= 0)
+				errstr = nbuf;
+		}
+		
+		break;
+	}
+
+	return errstr;
+}
+
+/* __ext3_std_error decodes expected errors from journaling functions
+ * automatically and invokes the appropriate error response.  */
+
+void __ext3_std_error (struct super_block * sb, const char * function,
+		       int errno)
+{
+	char nbuf[16];
+	const char *errstr = ext3_decode_error(sb, errno, nbuf);
+
+	printk (KERN_CRIT "EXT3-fs error (device %s) in %s: %s\n",
+		bdevname(sb->s_dev), function, errstr);
+	
+	ext3_handle_error(sb);
+}
+
+/*
+ * ext3_abort is a much stronger failure handler than ext3_error.  The
+ * abort function may be used to deal with unrecoverable failures such
+ * as journal IO errors or ENOMEM at a critical moment in log management.
+ *
+ * We unconditionally force the filesystem into an ABORT|READONLY state,
+ * unless the error response on the fs has been set to panic in which
+ * case we take the easy way out and panic immediately.
+ */
+
+void ext3_abort (struct super_block * sb, const char * function,
+		 const char * fmt, ...)
+{
+	va_list args;
+
+	printk (KERN_CRIT "ext3_abort called.\n");
+
+	va_start (args, fmt);
+	vsprintf (error_buf, fmt, args);
+	va_end (args);
+
+	if (ext3_error_behaviour(sb) == EXT3_ERRORS_PANIC)
+		panic ("EXT3-fs panic (device %s): %s: %s\n",
+		       bdevname(sb->s_dev), function, error_buf);
+
+	printk (KERN_CRIT "EXT3-fs abort (device %s): %s: %s\n",
+		bdevname(sb->s_dev), function, error_buf);
+
+	if (sb->s_flags & MS_RDONLY)
+		return;
+	
+	printk (KERN_CRIT "Remounting filesystem read-only\n");
+	sb->u.ext3_sb.s_mount_state |= EXT3_ERROR_FS;
+	sb->s_flags |= MS_RDONLY;
+	sb->u.ext3_sb.s_mount_opt |= EXT3_MOUNT_ABORT;
+	journal_abort(EXT3_SB(sb)->s_journal, -EIO);
+}
+
+/* Deal with the reporting of failure conditions while running, such as
+ * inconsistencies in operation or invalid system states.
+ *
+ * Use ext3_error() for cases of invalid filesystem states, as that will
+ * record an error on disk and force a filesystem check on the next boot.
+ */
+NORET_TYPE void ext3_panic (struct super_block * sb, const char * function,
+			    const char * fmt, ...)
+{
+	va_list args;
+
+	va_start (args, fmt);
+	vsprintf (error_buf, fmt, args);
+	va_end (args);
+
+	/* this is to prevent panic from syncing this filesystem */
+	/* AKPM: is this sufficient? */
+	sb->s_flags |= MS_RDONLY;
+	panic ("EXT3-fs panic (device %s): %s: %s\n",
+	       bdevname(sb->s_dev), function, error_buf);
+}
+
+void ext3_warning (struct super_block * sb, const char * function,
+		   const char * fmt, ...)
+{
+	va_list args;
+
+	va_start (args, fmt);
+	vsprintf (error_buf, fmt, args);
+	va_end (args);
+	printk (KERN_WARNING "EXT3-fs warning (device %s): %s: %s\n",
+		bdevname(sb->s_dev), function, error_buf);
+}
+
+void ext3_update_dynamic_rev(struct super_block *sb)
+{
+	struct ext3_super_block *es = EXT3_SB(sb)->s_es;
+
+	if (le32_to_cpu(es->s_rev_level) > EXT3_GOOD_OLD_REV)
+		return;
+
+	ext3_warning(sb, __FUNCTION__,
+		     "updating to rev %d because of new feature flag, "
+		     "running e2fsck is recommended",
+		     EXT3_DYNAMIC_REV);
+
+	es->s_first_ino = cpu_to_le32(EXT3_GOOD_OLD_FIRST_INO);
+	es->s_inode_size = cpu_to_le16(EXT3_GOOD_OLD_INODE_SIZE);
+	es->s_rev_level = cpu_to_le32(EXT3_DYNAMIC_REV);
+	/* leave es->s_feature_*compat flags alone */
+	/* es->s_uuid will be set by e2fsck if empty */
+
+	/*
+	 * The rest of the superblock fields should be zero, and if not it
+	 * means they are likely already in use, so leave them alone.  We
+	 * can leave it up to e2fsck to clean up any inconsistencies there.
+	 */
+}
+
+/*
+ * Open the external journal device
+ */
+static struct block_device *ext3_blkdev_get(kdev_t dev)
+{
+	struct block_device *bdev;
+	int err = -ENODEV;
+
+	bdev = bdget(kdev_t_to_nr(dev));
+	if (bdev == NULL)
+		goto fail;
+	err = blkdev_get(bdev, FMODE_READ|FMODE_WRITE, 0, BDEV_FS);
+	if (err < 0)
+		goto fail;
+	return bdev;
+
+fail:
+	printk(KERN_ERR "EXT3: failed to open journal device %s: %d\n",
+			bdevname(dev), err);
+	return NULL;
+}
+
+/*
+ * Release the journal device
+ */
+static int ext3_blkdev_put(struct block_device *bdev)
+{
+	return blkdev_put(bdev, BDEV_FS);
+}
+
+static int ext3_blkdev_remove(struct ext3_sb_info *sbi)
+{
+	struct block_device *bdev;
+	int ret = -ENODEV;
+
+	bdev = sbi->journal_bdev;
+	if (bdev) {
+		ret = ext3_blkdev_put(bdev);
+		sbi->journal_bdev = 0;
+	}
+	return ret;
+}
+
+#define orphan_list_entry(l) list_entry((l), struct inode, u.ext3_i.i_orphan)
+
+static void dump_orphan_list(struct super_block *sb, struct ext3_sb_info *sbi)
+{
+	struct list_head *l;
+	
+	printk(KERN_ERR "sb orphan head is %d\n", 
+	       le32_to_cpu(sbi->s_es->s_last_orphan));
+	
+	printk(KERN_ERR "sb_info orphan list:\n");
+	list_for_each(l, &sbi->s_orphan) {
+		struct inode *inode = orphan_list_entry(l);
+		printk(KERN_ERR "  "
+		       "inode 0x%04x:%ld at %p: mode %o, nlink %d, next %d\n",
+		       inode->i_dev, inode->i_ino, inode,
+		       inode->i_mode, inode->i_nlink, 
+		       le32_to_cpu(NEXT_ORPHAN(inode)));
+	}
+}
+
+void ext3_put_super (struct super_block * sb)
+{
+	struct ext3_sb_info *sbi = EXT3_SB(sb);
+	struct ext3_super_block *es = sbi->s_es;
+	kdev_t j_dev = sbi->s_journal->j_dev;
+	int i;
+
+	journal_destroy(sbi->s_journal);
+	if (!(sb->s_flags & MS_RDONLY)) {
+		EXT3_CLEAR_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);
+		es->s_state = le16_to_cpu(sbi->s_mount_state);
+		BUFFER_TRACE(sbi->s_sbh, "marking dirty");
+		mark_buffer_dirty(sbi->s_sbh);
+		ext3_commit_super(sb, es, 1);
+	}
+
+	for (i = 0; i < sbi->s_gdb_count; i++)
+		brelse(sbi->s_group_desc[i]);
+	kfree(sbi->s_group_desc);
+	for (i = 0; i < EXT3_MAX_GROUP_LOADED; i++)
+		brelse(sbi->s_inode_bitmap[i]);
+	for (i = 0; i < EXT3_MAX_GROUP_LOADED; i++)
+		brelse(sbi->s_block_bitmap[i]);
+	brelse(sbi->s_sbh);
+
+	/* Debugging code just in case the in-memory inode orphan list
+	 * isn't empty.  The on-disk one can be non-empty if we've
+	 * detected an error and taken the fs readonly, but the
+	 * in-memory list had better be clean by this point. */
+	if (!list_empty(&sbi->s_orphan))
+		dump_orphan_list(sb, sbi);
+	J_ASSERT(list_empty(&sbi->s_orphan));
+
+	invalidate_buffers(sb->s_dev);
+	if (j_dev != sb->s_dev) {
+		/*
+		 * Invalidate the journal device's buffers.  We don't want them
+		 * floating about in memory - the physical journal device may
+		 * hotswapped, and it breaks the `ro-after' testing code.
+		 */
+		fsync_no_super(j_dev);
+		invalidate_buffers(j_dev);
+		ext3_blkdev_remove(sbi);
+	}
+	clear_ro_after(sb);
+
+	return;
+}
+
+static struct dquot_operations ext3_qops;
+
+static struct super_operations ext3_sops = {
+	read_inode:	ext3_read_inode,	/* BKL held */
+	write_inode:	ext3_write_inode,	/* BKL not held.  Don't need */
+	dirty_inode:	ext3_dirty_inode,	/* BKL not held.  We take it */
+	put_inode:	ext3_put_inode,		/* BKL not held.  Don't need */
+	delete_inode:	ext3_delete_inode,	/* BKL not held.  We take it */
+	put_super:	ext3_put_super,		/* BKL held */
+	write_super:	ext3_write_super,	/* BKL held */
+	sync_fs:	ext3_sync_fs,
+	write_super_lockfs: ext3_write_super_lockfs, /* BKL not held. Take it */
+	unlockfs:	ext3_unlockfs,		/* BKL not held.  We take it */
+	statfs:		ext3_statfs,		/* BKL held */
+	remount_fs:	ext3_remount,		/* BKL held */
+};
+
+static int want_value(char *value, char *option)
+{
+	if (!value || !*value) {
+		printk(KERN_NOTICE "EXT3-fs: the %s option needs an argument\n",
+		       option);
+		return -1;
+	}
+	return 0;
+}
+
+static int want_null_value(char *value, char *option)
+{
+	if (*value) {
+		printk(KERN_NOTICE "EXT3-fs: Invalid %s argument: %s\n",
+		       option, value);
+		return -1;
+	}
+	return 0;
+}
+
+static int want_numeric(char *value, char *option, unsigned long *number)
+{
+	if (want_value(value, option))
+		return -1;
+	*number = simple_strtoul(value, &value, 0);
+	if (want_null_value(value, option))
+		return -1;
+	return 0;
+}
+
+/*
+ * This function has been shamelessly adapted from the msdos fs
+ */
+static int parse_options (char * options, unsigned long * sb_block,
+			  struct ext3_sb_info *sbi,
+			  unsigned long * inum,
+			  int is_remount)
+{
+	unsigned long *mount_options = &sbi->s_mount_opt;
+	uid_t *resuid = &sbi->s_resuid;
+	gid_t *resgid = &sbi->s_resgid;
+	char * this_char;
+	char * value;
+
+	if (!options)
+		return 1;
+	for (this_char = strtok (options, ",");
+	     this_char != NULL;
+	     this_char = strtok (NULL, ",")) {
+		if ((value = strchr (this_char, '=')) != NULL)
+			*value++ = 0;
+		if (!strcmp (this_char, "bsddf"))
+			clear_opt (*mount_options, MINIX_DF);
+		else if (!strcmp (this_char, "nouid32")) {
+			set_opt (*mount_options, NO_UID32);
+		}
+		else if (!strcmp (this_char, "abort"))
+			set_opt (*mount_options, ABORT);
+		else if (!strcmp (this_char, "check")) {
+			if (!value || !*value || !strcmp (value, "none"))
+				clear_opt (*mount_options, CHECK);
+			else
+#ifdef CONFIG_EXT3_CHECK
+				set_opt (*mount_options, CHECK);
+#else
+				printk(KERN_ERR 
+				       "EXT3 Check option not supported\n");
+#endif
+		}
+		else if (!strcmp (this_char, "debug"))
+			set_opt (*mount_options, DEBUG);
+		else if (!strcmp (this_char, "errors")) {
+			if (want_value(value, "errors"))
+				return 0;
+			if (!strcmp (value, "continue")) {
+				clear_opt (*mount_options, ERRORS_RO);
+				clear_opt (*mount_options, ERRORS_PANIC);
+				set_opt (*mount_options, ERRORS_CONT);
+			}
+			else if (!strcmp (value, "remount-ro")) {
+				clear_opt (*mount_options, ERRORS_CONT);
+				clear_opt (*mount_options, ERRORS_PANIC);
+				set_opt (*mount_options, ERRORS_RO);
+			}
+			else if (!strcmp (value, "panic")) {
+				clear_opt (*mount_options, ERRORS_CONT);
+				clear_opt (*mount_options, ERRORS_RO);
+				set_opt (*mount_options, ERRORS_PANIC);
+			}
+			else {
+				printk (KERN_ERR
+					"EXT3-fs: Invalid errors option: %s\n",
+					value);
+				return 0;
+			}
+		}
+		else if (!strcmp (this_char, "grpid") ||
+			 !strcmp (this_char, "bsdgroups"))
+			set_opt (*mount_options, GRPID);
+		else if (!strcmp (this_char, "minixdf"))
+			set_opt (*mount_options, MINIX_DF);
+		else if (!strcmp (this_char, "nocheck"))
+			clear_opt (*mount_options, CHECK);
+		else if (!strcmp (this_char, "nogrpid") ||
+			 !strcmp (this_char, "sysvgroups"))
+			clear_opt (*mount_options, GRPID);
+		else if (!strcmp (this_char, "resgid")) {
+			unsigned long v;
+			if (want_numeric(value, "resgid", &v))
+				return 0;
+			*resgid = v;
+		}
+		else if (!strcmp (this_char, "resuid")) {
+			unsigned long v;
+			if (want_numeric(value, "resuid", &v))
+				return 0;
+			*resuid = v;
+		}
+		else if (!strcmp (this_char, "sb")) {
+			if (want_numeric(value, "sb", sb_block))
+				return 0;
+		}
+#ifdef CONFIG_JBD_DEBUG
+		else if (!strcmp (this_char, "ro-after")) {
+			unsigned long v;
+			if (want_numeric(value, "ro-after", &v))
+				return 0;
+			ext3_ro_after = v;
+		}
+#endif
+		/* Silently ignore the quota options */
+		else if (!strcmp (this_char, "grpquota")
+		         || !strcmp (this_char, "noquota")
+		         || !strcmp (this_char, "quota")
+		         || !strcmp (this_char, "usrquota"))
+			/* Don't do anything ;-) */ ;
+		else if (!strcmp (this_char, "journal")) {
+			/* @@@ FIXME */
+			/* Eventually we will want to be able to create
+                           a journal file here.  For now, only allow the
+                           user to specify an existing inode to be the
+                           journal file. */
+			if (is_remount) {
+				printk(KERN_ERR "EXT3-fs: cannot specify "
+				       "journal on remount\n");
+				return 0;
+			}
+
+			if (want_value(value, "journal"))
+				return 0;
+			if (!strcmp (value, "update"))
+				set_opt (*mount_options, UPDATE_JOURNAL);
+			else if (want_numeric(value, "journal", inum))
+				return 0;
+		}
+		else if (!strcmp (this_char, "noload"))
+			set_opt (*mount_options, NOLOAD);
+		else if (!strcmp (this_char, "data")) {
+			int data_opt = 0;
+
+			if (want_value(value, "data"))
+				return 0;
+			if (!strcmp (value, "journal"))
+				data_opt = EXT3_MOUNT_JOURNAL_DATA;
+			else if (!strcmp (value, "ordered"))
+				data_opt = EXT3_MOUNT_ORDERED_DATA;
+			else if (!strcmp (value, "writeback"))
+				data_opt = EXT3_MOUNT_WRITEBACK_DATA;
+			else {
+				printk (KERN_ERR 
+					"EXT3-fs: Invalid data option: %s\n",
+					value);
+				return 0;
+			}
+			if (is_remount) {
+				if ((*mount_options & EXT3_MOUNT_DATA_FLAGS) !=
+							data_opt) {
+					printk(KERN_ERR
+					       "EXT3-fs: cannot change data "
+					       "mode on remount\n");
+					return 0;
+				}
+			} else {
+				*mount_options &= ~EXT3_MOUNT_DATA_FLAGS;
+				*mount_options |= data_opt;
+			}
+		} else if (!strcmp (this_char, "commit")) {
+			unsigned long v;
+			if (want_numeric(value, "commit", &v))
+				return 0;
+			sbi->s_commit_interval = (HZ * v);
+		} else {
+			printk (KERN_ERR 
+				"EXT3-fs: Unrecognized mount option %s\n",
+				this_char);
+			return 0;
+		}
+	}
+	return 1;
+}
+
+static int ext3_setup_super(struct super_block *sb, struct ext3_super_block *es,
+			    int read_only)
+{
+	struct ext3_sb_info *sbi = EXT3_SB(sb);
+	int res = 0;
+
+	if (le32_to_cpu(es->s_rev_level) > EXT3_MAX_SUPP_REV) {
+		printk (KERN_ERR "EXT3-fs warning: revision level too high, "
+			"forcing read-only mode\n");
+		res = MS_RDONLY;
+	}
+	if (read_only)
+		return res;
+	if (!(sbi->s_mount_state & EXT3_VALID_FS))
+		printk (KERN_WARNING "EXT3-fs warning: mounting unchecked fs, "
+			"running e2fsck is recommended\n");
+	else if ((sbi->s_mount_state & EXT3_ERROR_FS))
+		printk (KERN_WARNING
+			"EXT3-fs warning: mounting fs with errors, "
+			"running e2fsck is recommended\n");
+	else if ((__s16) le16_to_cpu(es->s_max_mnt_count) >= 0 &&
+		 le16_to_cpu(es->s_mnt_count) >=
+		 (unsigned short) (__s16) le16_to_cpu(es->s_max_mnt_count))
+		printk (KERN_WARNING
+			"EXT3-fs warning: maximal mount count reached, "
+			"running e2fsck is recommended\n");
+	else if (le32_to_cpu(es->s_checkinterval) &&
+		(le32_to_cpu(es->s_lastcheck) +
+			le32_to_cpu(es->s_checkinterval) <= CURRENT_TIME))
+		printk (KERN_WARNING
+			"EXT3-fs warning: checktime reached, "
+			"running e2fsck is recommended\n");
+#if 0
+		/* @@@ We _will_ want to clear the valid bit if we find
+                   inconsistencies, to force a fsck at reboot.  But for
+                   a plain journaled filesystem we can keep it set as
+                   valid forever! :) */
+	es->s_state = cpu_to_le16(le16_to_cpu(es->s_state) & ~EXT3_VALID_FS);
+#endif
+	if (!(__s16) le16_to_cpu(es->s_max_mnt_count))
+		es->s_max_mnt_count =
+			(__s16) cpu_to_le16(EXT3_DFL_MAX_MNT_COUNT);
+	es->s_mnt_count=cpu_to_le16(le16_to_cpu(es->s_mnt_count) + 1);
+	es->s_mtime = cpu_to_le32(CURRENT_TIME);
+	ext3_update_dynamic_rev(sb);
+	EXT3_SET_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);
+	ext3_commit_super (sb, es, 1);
+	if (test_opt (sb, DEBUG))
+		printk (KERN_INFO
+			"[EXT3 FS %s, %s, bs=%lu, gc=%lu, "
+			"bpg=%lu, ipg=%lu, mo=%04lx]\n",
+			EXT3FS_VERSION, EXT3FS_DATE, sb->s_blocksize,
+			sbi->s_groups_count,
+			EXT3_BLOCKS_PER_GROUP(sb),
+			EXT3_INODES_PER_GROUP(sb),
+			sbi->s_mount_opt);
+	printk(KERN_INFO "EXT3 FS " EXT3FS_VERSION ", " EXT3FS_DATE " on %s, ",
+				bdevname(sb->s_dev));
+	if (EXT3_SB(sb)->s_journal->j_inode == NULL) {
+		printk("external journal on %s\n",
+				bdevname(EXT3_SB(sb)->s_journal->j_dev));
+	} else {
+		printk("internal journal\n");
+	}
+#ifdef CONFIG_EXT3_CHECK
+	if (test_opt (sb, CHECK)) {
+		ext3_check_blocks_bitmap (sb);
+		ext3_check_inodes_bitmap (sb);
+	}
+#endif
+	setup_ro_after(sb);
+	return res;
+}
+
+static int ext3_check_descriptors (struct super_block * sb)
+{
+	struct ext3_sb_info *sbi = EXT3_SB(sb);
+	unsigned long block = le32_to_cpu(sbi->s_es->s_first_data_block);
+	struct ext3_group_desc * gdp = NULL;
+	int desc_block = 0;
+	int i;
+
+	ext3_debug ("Checking group descriptors");
+
+	for (i = 0; i < sbi->s_groups_count; i++)
+	{
+		if ((i % EXT3_DESC_PER_BLOCK(sb)) == 0)
+			gdp = (struct ext3_group_desc *)
+					sbi->s_group_desc[desc_block++]->b_data;
+		if (le32_to_cpu(gdp->bg_block_bitmap) < block ||
+		    le32_to_cpu(gdp->bg_block_bitmap) >=
+				block + EXT3_BLOCKS_PER_GROUP(sb))
+		{
+			ext3_error (sb, "ext3_check_descriptors",
+				    "Block bitmap for group %d"
+				    " not in group (block %lu)!",
+				    i, (unsigned long)
+					le32_to_cpu(gdp->bg_block_bitmap));
+			return 0;
+		}
+		if (le32_to_cpu(gdp->bg_inode_bitmap) < block ||
+		    le32_to_cpu(gdp->bg_inode_bitmap) >=
+				block + EXT3_BLOCKS_PER_GROUP(sb))
+		{
+			ext3_error (sb, "ext3_check_descriptors",
+				    "Inode bitmap for group %d"
+				    " not in group (block %lu)!",
+				    i, (unsigned long)
+					le32_to_cpu(gdp->bg_inode_bitmap));
+			return 0;
+		}
+		if (le32_to_cpu(gdp->bg_inode_table) < block ||
+		    le32_to_cpu(gdp->bg_inode_table) + sbi->s_itb_per_group >=
+		    block + EXT3_BLOCKS_PER_GROUP(sb))
+		{
+			ext3_error (sb, "ext3_check_descriptors",
+				    "Inode table for group %d"
+				    " not in group (block %lu)!",
+				    i, (unsigned long)
+					le32_to_cpu(gdp->bg_inode_table));
+			return 0;
+		}
+		block += EXT3_BLOCKS_PER_GROUP(sb);
+		gdp++;
+	}
+	return 1;
+}
+
+static unsigned long descriptor_loc(struct super_block *sb,
+				    unsigned long logic_sb_block,
+				    int nr)
+{
+	struct ext3_sb_info *sbi = EXT3_SB(sb);
+	unsigned long bg, first_data_block, first_meta_bg;
+	int has_super = 0;
+	
+	first_data_block = le32_to_cpu(sbi->s_es->s_first_data_block);
+	first_meta_bg = le32_to_cpu(sbi->s_es->s_first_meta_bg);
+
+	if (!EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_META_BG) ||
+	    nr < first_meta_bg)
+		return (logic_sb_block + nr + 1);
+	bg = sbi->s_desc_per_block * nr;
+	if (ext3_bg_has_super(sb, bg))
+		has_super = 1;
+	return (first_data_block + has_super + (bg * sbi->s_blocks_per_group));
+}
+
+
+/* ext3_orphan_cleanup() walks a singly-linked list of inodes (starting at
+ * the superblock) which were deleted from all directories, but held open by
+ * a process at the time of a crash.  We walk the list and try to delete these
+ * inodes at recovery time (only with a read-write filesystem).
+ *
+ * In order to keep the orphan inode chain consistent during traversal (in
+ * case of crash during recovery), we link each inode into the superblock
+ * orphan list_head and handle it the same way as an inode deletion during
+ * normal operation (which journals the operations for us).
+ *
+ * We only do an iget() and an iput() on each inode, which is very safe if we
+ * accidentally point at an in-use or already deleted inode.  The worst that
+ * can happen in this case is that we get a "bit already cleared" message from
+ * ext3_free_inode().  The only reason we would point at a wrong inode is if
+ * e2fsck was run on this filesystem, and it must have already done the orphan
+ * inode cleanup for us, so we can safely abort without any further action.
+ */
+static void ext3_orphan_cleanup (struct super_block * sb,
+				 struct ext3_super_block * es)
+{
+	unsigned int s_flags = sb->s_flags;
+	int nr_orphans = 0, nr_truncates = 0;
+	if (!es->s_last_orphan) {
+		jbd_debug(4, "no orphan inodes to clean up\n");
+		return;
+	}
+
+	if (sb->u.ext3_sb.s_mount_state & EXT3_ERROR_FS) {
+		if (es->s_last_orphan)
+			jbd_debug(1, "Errors on filesystem, "
+				  "clearing orphan list.\n");
+		es->s_last_orphan = 0;
+		jbd_debug(1, "Skipping orphan recovery on fs with errors.\n");
+		return;
+	}
+
+	if (s_flags & MS_RDONLY) {
+		printk(KERN_INFO "EXT3-fs: %s: orphan cleanup on readonly fs\n",
+		       bdevname(sb->s_dev));
+		sb->s_flags &= ~MS_RDONLY;
+	}
+
+	while (es->s_last_orphan) {
+		struct inode *inode;
+
+		if (!(inode =
+		      ext3_orphan_get(sb, le32_to_cpu(es->s_last_orphan)))) {
+			es->s_last_orphan = 0;
+			break;
+		}
+
+		list_add(&EXT3_I(inode)->i_orphan, &EXT3_SB(sb)->s_orphan);
+		if (inode->i_nlink) {
+			printk(KERN_DEBUG "%s: truncating inode %ld to %Ld "
+				"bytes\n", __FUNCTION__, inode->i_ino,
+				inode->i_size);
+			jbd_debug(2, "truncating inode %ld to %Ld bytes\n",
+				  inode->i_ino, inode->i_size);
+			ext3_truncate(inode);
+			nr_truncates++;
+		} else {
+			printk(KERN_DEBUG "%s: deleting unreferenced "
+				"inode %ld\n", __FUNCTION__, inode->i_ino);
+			jbd_debug(2, "deleting unreferenced inode %ld\n",
+				  inode->i_ino);
+			nr_orphans++;
+		}
+		iput(inode);  /* The delete magic happens here! */
+	}
+
+#define PLURAL(x) (x), ((x)==1) ? "" : "s"
+
+	if (nr_orphans)
+		printk(KERN_INFO "EXT3-fs: %s: %d orphan inode%s deleted\n",
+		       bdevname(sb->s_dev), PLURAL(nr_orphans));
+	if (nr_truncates)
+		printk(KERN_INFO "EXT3-fs: %s: %d truncate%s cleaned up\n",
+		       bdevname(sb->s_dev), PLURAL(nr_truncates));
+	sb->s_flags = s_flags; /* Restore MS_RDONLY status */
+}
+
+#define log2(n) ffz(~(n))
+
+/*
+ * Maximal file size.  There is a direct, and {,double-,triple-}indirect
+ * block limit, and also a limit of (2^32 - 1) 512-byte sectors in i_blocks.
+ * We need to be 1 filesystem block less than the 2^32 sector limit.
+ */
+static loff_t ext3_max_size(int bits)
+{
+	loff_t res = EXT3_NDIR_BLOCKS;
+	res += 1LL << (bits-2);
+	res += 1LL << (2*(bits-2));
+	res += 1LL << (3*(bits-2));
+	res <<= bits;
+	if (res > (512LL << 32) - (1 << bits))
+		res = (512LL << 32) - (1 << bits);
+	return res;
+}
+
+struct super_block * ext3_read_super (struct super_block * sb, void * data,
+				      int silent)
+{
+	struct buffer_head * bh;
+	struct ext3_super_block *es = 0;
+	struct ext3_sb_info *sbi = EXT3_SB(sb);
+	unsigned long block;
+	unsigned long sb_block = 1;
+	unsigned long logic_sb_block = 1;
+	unsigned long offset = 0;
+	unsigned long journal_inum = 0;
+	kdev_t dev = sb->s_dev;
+	int blocksize;
+	int hblock;
+	int db_count;
+	int i;
+	int needs_recovery;
+
+#ifdef CONFIG_JBD_DEBUG
+	ext3_ro_after = 0;
+#endif
+	/*
+	 * See what the current blocksize for the device is, and
+	 * use that as the blocksize.  Otherwise (or if the blocksize
+	 * is smaller than the default) use the default.
+	 * This is important for devices that have a hardware
+	 * sectorsize that is larger than the default.
+	 */
+	blocksize = EXT3_MIN_BLOCK_SIZE;
+	hblock = get_hardsect_size(dev);
+	if (blocksize < hblock)
+		blocksize = hblock;
+
+	sbi->s_mount_opt = 0;
+	sbi->s_resuid = EXT3_DEF_RESUID;
+	sbi->s_resgid = EXT3_DEF_RESGID;
+	if (!parse_options ((char *) data, &sb_block, sbi, &journal_inum, 0)) {
+		sb->s_dev = 0;
+		goto out_fail;
+	}
+
+	sb->s_blocksize = blocksize;
+	set_blocksize (dev, blocksize);
+
+	/*
+	 * The ext3 superblock will not be buffer aligned for other than 1kB
+	 * block sizes.  We need to calculate the offset from buffer start.
+	 */
+	if (blocksize != EXT3_MIN_BLOCK_SIZE) {
+		logic_sb_block = (sb_block * EXT3_MIN_BLOCK_SIZE) / blocksize;
+		offset = (sb_block * EXT3_MIN_BLOCK_SIZE) % blocksize;
+	}
+
+	if (!(bh = sb_bread(sb, logic_sb_block))) {
+		printk (KERN_ERR "EXT3-fs: unable to read superblock\n");
+		goto out_fail;
+	}
+	/*
+	 * Note: s_es must be initialized as soon as possible because
+	 *       some ext3 macro-instructions depend on its value
+	 */
+	es = (struct ext3_super_block *) (((char *)bh->b_data) + offset);
+	sbi->s_es = es;
+	sb->s_magic = le16_to_cpu(es->s_magic);
+	if (sb->s_magic != EXT3_SUPER_MAGIC) {
+		if (!silent)
+			printk(KERN_ERR 
+			       "VFS: Can't find ext3 filesystem on dev %s.\n",
+			       bdevname(dev));
+		goto failed_mount;
+	}
+	if (le32_to_cpu(es->s_rev_level) == EXT3_GOOD_OLD_REV &&
+	    (EXT3_HAS_COMPAT_FEATURE(sb, ~0U) ||
+	     EXT3_HAS_RO_COMPAT_FEATURE(sb, ~0U) ||
+	     EXT3_HAS_INCOMPAT_FEATURE(sb, ~0U)))
+		printk(KERN_WARNING 
+		       "EXT3-fs warning: feature flags set on rev 0 fs, "
+		       "running e2fsck is recommended\n");
+	/*
+	 * Check feature flags regardless of the revision level, since we
+	 * previously didn't change the revision level when setting the flags,
+	 * so there is a chance incompat flags are set on a rev 0 filesystem.
+	 */
+	if ((i = EXT3_HAS_INCOMPAT_FEATURE(sb, ~EXT3_FEATURE_INCOMPAT_SUPP))) {
+		printk(KERN_ERR "EXT3-fs: %s: couldn't mount because of "
+		       "unsupported optional features (%x).\n",
+		       bdevname(dev), i);
+		goto failed_mount;
+	}
+	if (!(sb->s_flags & MS_RDONLY) &&
+	    (i = EXT3_HAS_RO_COMPAT_FEATURE(sb, ~EXT3_FEATURE_RO_COMPAT_SUPP))){
+		printk(KERN_ERR "EXT3-fs: %s: couldn't mount RDWR because of "
+		       "unsupported optional features (%x).\n",
+		       bdevname(dev), i);
+		goto failed_mount;
+	}
+	sb->s_blocksize_bits = le32_to_cpu(es->s_log_block_size) + 10;
+	sb->s_blocksize = 1 << sb->s_blocksize_bits;
+
+	if (sb->s_blocksize < EXT3_MIN_BLOCK_SIZE ||
+	    sb->s_blocksize > EXT3_MAX_BLOCK_SIZE) {
+		printk(KERN_ERR 
+		       "EXT3-fs: Unsupported filesystem blocksize %d on %s.\n",
+		       blocksize, bdevname(dev));
+		goto failed_mount;
+	}
+
+	sb->s_maxbytes = ext3_max_size(sb->s_blocksize_bits);
+
+	if (sb->s_blocksize != blocksize) {
+		blocksize = sb->s_blocksize;
+
+		/*
+		 * Make sure the blocksize for the filesystem is larger
+		 * than the hardware sectorsize for the machine.
+		 */
+		if (sb->s_blocksize < hblock) {
+			printk(KERN_ERR "EXT3-fs: blocksize %d too small for "
+			       "device blocksize %d.\n", blocksize, hblock);
+			goto failed_mount;
+		}
+
+		brelse (bh);
+		set_blocksize (dev, sb->s_blocksize);
+		logic_sb_block = (sb_block * EXT3_MIN_BLOCK_SIZE) / blocksize;
+		offset = (sb_block * EXT3_MIN_BLOCK_SIZE) % blocksize;
+		bh = sb_bread(sb, logic_sb_block);
+		if (!bh) {
+			printk(KERN_ERR 
+			       "EXT3-fs: Can't read superblock on 2nd try.\n");
+			return NULL;
+		}
+		es = (struct ext3_super_block *)(((char *)bh->b_data) + offset);
+		sbi->s_es = es;
+		if (es->s_magic != le16_to_cpu(EXT3_SUPER_MAGIC)) {
+			printk (KERN_ERR 
+				"EXT3-fs: Magic mismatch, very weird !\n");
+			goto failed_mount;
+		}
+	}
+
+	if (le32_to_cpu(es->s_rev_level) == EXT3_GOOD_OLD_REV) {
+		sbi->s_inode_size = EXT3_GOOD_OLD_INODE_SIZE;
+		sbi->s_first_ino = EXT3_GOOD_OLD_FIRST_INO;
+	} else {
+		sbi->s_inode_size = le16_to_cpu(es->s_inode_size);
+		sbi->s_first_ino = le32_to_cpu(es->s_first_ino);
+		if ((sbi->s_inode_size < EXT3_GOOD_OLD_INODE_SIZE) ||
+		    (sbi->s_inode_size & (sbi->s_inode_size - 1)) ||
+		    (sbi->s_inode_size > blocksize)) {
+			printk (KERN_ERR
+				"EXT3-fs: unsupported inode size: %d\n",
+				sbi->s_inode_size);
+			goto failed_mount;
+		}
+	}
+	sbi->s_frag_size = EXT3_MIN_FRAG_SIZE <<
+				   le32_to_cpu(es->s_log_frag_size);
+	if (blocksize != sbi->s_frag_size) {
+		printk(KERN_ERR
+		       "EXT3-fs: fragsize %lu != blocksize %u (unsupported)\n",
+		       sbi->s_frag_size, blocksize);
+		goto failed_mount;
+	}
+	sbi->s_frags_per_block = 1;
+	sbi->s_blocks_per_group = le32_to_cpu(es->s_blocks_per_group);
+	sbi->s_frags_per_group = le32_to_cpu(es->s_frags_per_group);
+	sbi->s_inodes_per_group = le32_to_cpu(es->s_inodes_per_group);
+	sbi->s_inodes_per_block = blocksize / EXT3_INODE_SIZE(sb);
+	sbi->s_itb_per_group = sbi->s_inodes_per_group /sbi->s_inodes_per_block;
+	sbi->s_desc_per_block = blocksize / sizeof(struct ext3_group_desc);
+	sbi->s_sbh = bh;
+	if (sbi->s_resuid == EXT3_DEF_RESUID)
+		sbi->s_resuid = le16_to_cpu(es->s_def_resuid);
+	if (sbi->s_resgid == EXT3_DEF_RESGID)
+		sbi->s_resgid = le16_to_cpu(es->s_def_resgid);
+	sbi->s_mount_state = le16_to_cpu(es->s_state);
+	sbi->s_addr_per_block_bits = log2(EXT3_ADDR_PER_BLOCK(sb));
+	sbi->s_desc_per_block_bits = log2(EXT3_DESC_PER_BLOCK(sb));
+
+	if (sbi->s_blocks_per_group > blocksize * 8) {
+		printk (KERN_ERR
+			"EXT3-fs: #blocks per group too big: %lu\n",
+			sbi->s_blocks_per_group);
+		goto failed_mount;
+	}
+	if (sbi->s_frags_per_group > blocksize * 8) {
+		printk (KERN_ERR
+			"EXT3-fs: #fragments per group too big: %lu\n",
+			sbi->s_frags_per_group);
+		goto failed_mount;
+	}
+	if (sbi->s_inodes_per_group > blocksize * 8) {
+		printk (KERN_ERR
+			"EXT3-fs: #inodes per group too big: %lu\n",
+			sbi->s_inodes_per_group);
+		goto failed_mount;
+	}
+
+	sbi->s_groups_count = (le32_to_cpu(es->s_blocks_count) -
+			       le32_to_cpu(es->s_first_data_block) +
+			       EXT3_BLOCKS_PER_GROUP(sb) - 1) /
+			      EXT3_BLOCKS_PER_GROUP(sb);
+	db_count = (sbi->s_groups_count + EXT3_DESC_PER_BLOCK(sb) - 1) /
+		   EXT3_DESC_PER_BLOCK(sb);
+	sbi->s_group_desc = kmalloc(db_count * sizeof (struct buffer_head *),
+				    GFP_KERNEL);
+	if (sbi->s_group_desc == NULL) {
+		printk (KERN_ERR "EXT3-fs: not enough memory\n");
+		goto failed_mount;
+	}
+	for (i = 0; i < db_count; i++) {
+		block = descriptor_loc(sb, logic_sb_block, i);
+		sbi->s_group_desc[i] = sb_bread(sb, block);
+		if (!sbi->s_group_desc[i]) {
+			printk (KERN_ERR "EXT3-fs: "
+				"can't read group descriptor %d\n", i);
+			db_count = i;
+			goto failed_mount2;
+		}
+	}
+	if (!ext3_check_descriptors (sb)) {
+		printk (KERN_ERR "EXT3-fs: group descriptors corrupted !\n");
+		goto failed_mount2;
+	}
+	for (i = 0; i < EXT3_MAX_GROUP_LOADED; i++) {
+		sbi->s_inode_bitmap_number[i] = 0;
+		sbi->s_inode_bitmap[i] = NULL;
+		sbi->s_block_bitmap_number[i] = 0;
+		sbi->s_block_bitmap[i] = NULL;
+	}
+	sbi->s_loaded_inode_bitmaps = 0;
+	sbi->s_loaded_block_bitmaps = 0;
+	sbi->s_gdb_count = db_count;
+	get_random_bytes(&sbi->s_next_generation, sizeof(u32));
+	/*
+	 * set up enough so that it can read an inode
+	 */
+	sb->s_op = &ext3_sops;
+	sb->dq_op = &ext3_qops;
+	INIT_LIST_HEAD(&sbi->s_orphan); /* unlinked but open files */
+
+	sb->s_root = 0;
+
+	needs_recovery = (es->s_last_orphan != 0 ||
+			  EXT3_HAS_INCOMPAT_FEATURE(sb,
+				    EXT3_FEATURE_INCOMPAT_RECOVER));
+
+	/*
+	 * The first inode we look at is the journal inode.  Don't try
+	 * root first: it may be modified in the journal!
+	 */
+	if (!test_opt(sb, NOLOAD) &&
+	    EXT3_HAS_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
+		if (ext3_load_journal(sb, es))
+			goto failed_mount2;
+	} else if (journal_inum) {
+		if (ext3_create_journal(sb, es, journal_inum))
+			goto failed_mount2;
+	} else {
+		if (!silent)
+			printk (KERN_ERR
+				"ext3: No journal on filesystem on %s\n",
+				bdevname(dev));
+		goto failed_mount2;
+	}
+
+	/* We have now updated the journal if required, so we can
+	 * validate the data journaling mode. */
+	switch (test_opt(sb, DATA_FLAGS)) {
+	case 0:
+		/* No mode set, assume a default based on the journal
+                   capabilities: ORDERED_DATA if the journal can
+                   cope, else JOURNAL_DATA */
+		if (journal_check_available_features
+		    (sbi->s_journal, 0, 0, JFS_FEATURE_INCOMPAT_REVOKE))
+			set_opt(sbi->s_mount_opt, ORDERED_DATA);
+		else
+			set_opt(sbi->s_mount_opt, JOURNAL_DATA);
+		break;
+
+	case EXT3_MOUNT_ORDERED_DATA:
+	case EXT3_MOUNT_WRITEBACK_DATA:
+		if (!journal_check_available_features
+		    (sbi->s_journal, 0, 0, JFS_FEATURE_INCOMPAT_REVOKE)) {
+			printk(KERN_ERR "EXT3-fs: Journal does not support "
+			       "requested data journaling mode\n");
+			goto failed_mount3;
+		}
+	default:
+		break;
+	}
+
+	/*
+	 * The journal_load will have done any necessary log recovery,
+	 * so we can safely mount the rest of the filesystem now.
+	 */
+
+	sb->s_root = d_alloc_root(iget(sb, EXT3_ROOT_INO));
+	if (!sb->s_root || !S_ISDIR(sb->s_root->d_inode->i_mode) ||
+	    !sb->s_root->d_inode->i_blocks || !sb->s_root->d_inode->i_size) {
+		if (sb->s_root) {
+			dput(sb->s_root);
+			sb->s_root = NULL;
+			printk(KERN_ERR
+			       "EXT3-fs: corrupt root inode, run e2fsck\n");
+		} else
+			printk(KERN_ERR "EXT3-fs: get root inode failed\n");
+		goto failed_mount3;
+	}
+
+	ext3_setup_super (sb, es, sb->s_flags & MS_RDONLY);
+	EXT3_SB(sb)->s_mount_state |= EXT3_ORPHAN_FS;
+	ext3_orphan_cleanup(sb, es);
+	EXT3_SB(sb)->s_mount_state &= ~EXT3_ORPHAN_FS;
+	if (needs_recovery)
+		printk (KERN_INFO "EXT3-fs: recovery complete.\n");
+	ext3_mark_recovery_complete(sb, es);
+	printk (KERN_INFO "EXT3-fs: mounted filesystem with %s data mode.\n",
+		test_opt(sb,DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA ? "journal":
+		test_opt(sb,DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA ? "ordered":
+		"writeback");
+
+	return sb;
+
+failed_mount3:
+	journal_destroy(sbi->s_journal);
+failed_mount2:
+	for (i = 0; i < db_count; i++)
+		brelse(sbi->s_group_desc[i]);
+	kfree(sbi->s_group_desc);
+failed_mount:
+	ext3_blkdev_remove(sbi);
+	brelse(bh);
+out_fail:
+	return NULL;
+}
+
+/*
+ * Setup any per-fs journal parameters now.  We'll do this both on
+ * initial mount, once the journal has been initialised but before we've
+ * done any recovery; and again on any subsequent remount. 
+ */
+static void ext3_init_journal_params(struct ext3_sb_info *sbi, 
+				     journal_t *journal)
+{
+	if (sbi->s_commit_interval)
+		journal->j_commit_interval = sbi->s_commit_interval;
+	/* We could also set up an ext3-specific default for the commit
+	 * interval here, but for now we'll just fall back to the jbd
+	 * default. */
+}
+
+
+static journal_t *ext3_get_journal(struct super_block *sb, int journal_inum)
+{
+	struct inode *journal_inode;
+	journal_t *journal;
+
+	/* First, test for the existence of a valid inode on disk.  Bad
+	 * things happen if we iget() an unused inode, as the subsequent
+	 * iput() will try to delete it. */
+
+	journal_inode = iget(sb, journal_inum);
+	if (!journal_inode) {
+		printk(KERN_ERR "EXT3-fs: no journal found.\n");
+		return NULL;
+	}
+	if (!journal_inode->i_nlink) {
+		make_bad_inode(journal_inode);
+		iput(journal_inode);
+		printk(KERN_ERR "EXT3-fs: journal inode is deleted.\n");
+		return NULL;
+	}
+
+	jbd_debug(2, "Journal inode found at %p: %Ld bytes\n",
+		  journal_inode, journal_inode->i_size);
+	if (is_bad_inode(journal_inode) || !S_ISREG(journal_inode->i_mode)) {
+		printk(KERN_ERR "EXT3-fs: invalid journal inode.\n");
+		iput(journal_inode);
+		return NULL;
+	}
+
+	journal = journal_init_inode(journal_inode);
+	if (!journal) {
+		printk(KERN_ERR "EXT3-fs: Could not load journal inode\n");
+		iput(journal_inode);
+		return NULL;
+	}
+	ext3_init_journal_params(EXT3_SB(sb), journal);
+	return journal;
+}
+
+static journal_t *ext3_get_dev_journal(struct super_block *sb,
+				       int dev)
+{
+	struct buffer_head * bh;
+	journal_t *journal;
+	int start;
+	int len;
+	int hblock, blocksize;
+	unsigned long sb_block;
+	unsigned long offset;
+	kdev_t journal_dev = to_kdev_t(dev);
+	struct ext3_super_block * es;
+	struct block_device *bdev;
+
+	bdev = ext3_blkdev_get(journal_dev);
+	if (bdev == NULL)
+		return NULL;
+
+	blocksize = sb->s_blocksize;
+	hblock = get_hardsect_size(journal_dev);
+	if (blocksize < hblock) {
+		printk(KERN_ERR
+			"EXT3-fs: blocksize too small for journal device.\n");
+		goto out_bdev;
+	}
+	
+	sb_block = EXT3_MIN_BLOCK_SIZE / blocksize;
+	offset = EXT3_MIN_BLOCK_SIZE % blocksize;
+	set_blocksize(dev, blocksize);
+	if (!(bh = bread(dev, sb_block, blocksize))) {
+		printk(KERN_ERR "EXT3-fs: couldn't read superblock of "
+		       "external journal\n");
+		goto out_bdev;
+	}
+
+	es = (struct ext3_super_block *) (((char *)bh->b_data) + offset);
+	if ((le16_to_cpu(es->s_magic) != EXT3_SUPER_MAGIC) ||
+	    !(le32_to_cpu(es->s_feature_incompat) &
+	      EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)) {
+		printk(KERN_ERR "EXT3-fs: external journal has "
+					"bad superblock\n");
+		brelse(bh);
+		goto out_bdev;
+	}
+
+	if (memcmp(EXT3_SB(sb)->s_es->s_journal_uuid, es->s_uuid, 16)) {
+		printk(KERN_ERR "EXT3-fs: journal UUID does not match\n");
+		brelse(bh);
+		goto out_bdev;
+	}
+
+	len = le32_to_cpu(es->s_blocks_count);
+	start = sb_block + 1;
+	brelse(bh);	/* we're done with the superblock */
+
+	journal = journal_init_dev(journal_dev, sb->s_dev, 
+					start, len, blocksize);
+	if (!journal) {
+		printk(KERN_ERR "EXT3-fs: failed to create device journal\n");
+		goto out_bdev;
+	}
+	ll_rw_block(READ, 1, &journal->j_sb_buffer);
+	wait_on_buffer(journal->j_sb_buffer);
+	if (!buffer_uptodate(journal->j_sb_buffer)) {
+		printk(KERN_ERR "EXT3-fs: I/O error on journal device\n");
+		goto out_journal;
+	}
+	if (ntohl(journal->j_superblock->s_nr_users) != 1) {
+		printk(KERN_ERR "EXT3-fs: External journal has more than one "
+					"user (unsupported) - %d\n",
+			ntohl(journal->j_superblock->s_nr_users));
+		goto out_journal;
+	}
+	EXT3_SB(sb)->journal_bdev = bdev;
+	ext3_init_journal_params(EXT3_SB(sb), journal);
+	return journal;
+out_journal:
+	journal_destroy(journal);
+out_bdev:
+	ext3_blkdev_put(bdev);
+	return NULL;
+}
+
+static int ext3_load_journal(struct super_block * sb,
+			     struct ext3_super_block * es)
+{
+	journal_t *journal;
+	int journal_inum = le32_to_cpu(es->s_journal_inum);
+	int journal_dev = le32_to_cpu(es->s_journal_dev);
+	int err = 0;
+	int really_read_only;
+
+	really_read_only = is_read_only(sb->s_dev);
+
+	/*
+	 * Are we loading a blank journal or performing recovery after a
+	 * crash?  For recovery, we need to check in advance whether we
+	 * can get read-write access to the device.
+	 */
+
+	if (EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER)) {
+		if (sb->s_flags & MS_RDONLY) {
+			printk(KERN_INFO "EXT3-fs: INFO: recovery "
+					"required on readonly filesystem.\n");
+			if (really_read_only) {
+				printk(KERN_ERR "EXT3-fs: write access "
+					"unavailable, cannot proceed.\n");
+				return -EROFS;
+			}
+			printk (KERN_INFO "EXT3-fs: write access will "
+					"be enabled during recovery.\n");
+		}
+	}
+
+	if (journal_inum && journal_dev) {
+		printk(KERN_ERR "EXT3-fs: filesystem has both journal "
+		       "and inode journals!\n");
+		return -EINVAL;
+	}
+
+	if (journal_inum) {
+		if (!(journal = ext3_get_journal(sb, journal_inum)))
+			return -EINVAL;
+	} else {
+		if (!(journal = ext3_get_dev_journal(sb, journal_dev)))
+			return -EINVAL;
+	}
+	
+
+	if (!really_read_only && test_opt(sb, UPDATE_JOURNAL)) {
+		err = journal_update_format(journal);
+		if (err)  {
+			printk(KERN_ERR "EXT3-fs: error updating journal.\n");
+			journal_destroy(journal);
+			return err;
+		}
+	}
+
+	if (!EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER))
+		err = journal_wipe(journal, !really_read_only);
+	if (!err)
+		err = journal_load(journal);
+
+	if (err) {
+		printk(KERN_ERR "EXT3-fs: error loading journal.\n");
+		journal_destroy(journal);
+		return err;
+	}
+
+	EXT3_SB(sb)->s_journal = journal;
+	ext3_clear_journal_err(sb, es);
+	return 0;
+}
+
+static int ext3_create_journal(struct super_block * sb,
+			       struct ext3_super_block * es,
+			       int journal_inum)
+{
+	journal_t *journal;
+
+	if (sb->s_flags & MS_RDONLY) {
+		printk(KERN_ERR "EXT3-fs: readonly filesystem when trying to "
+				"create journal.\n");
+		return -EROFS;
+	}
+
+	if (!(journal = ext3_get_journal(sb, journal_inum)))
+		return -EINVAL;
+
+	printk(KERN_INFO "EXT3-fs: creating new journal on inode %d\n",
+	       journal_inum);
+
+	if (journal_create(journal)) {
+		printk(KERN_ERR "EXT3-fs: error creating journal.\n");
+		journal_destroy(journal);
+		return -EIO;
+	}
+
+	EXT3_SB(sb)->s_journal = journal;
+
+	ext3_update_dynamic_rev(sb);
+	EXT3_SET_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);
+	EXT3_SET_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_HAS_JOURNAL);
+
+	es->s_journal_inum = cpu_to_le32(journal_inum);
+	sb->s_dirt = 1;
+
+	/* Make sure we flush the recovery flag to disk. */
+	ext3_commit_super(sb, es, 1);
+
+	return 0;
+}
+
+static void ext3_commit_super (struct super_block * sb,
+			       struct ext3_super_block * es,
+			       int sync)
+{
+	es->s_wtime = cpu_to_le32(CURRENT_TIME);
+	BUFFER_TRACE(sb->u.ext3_sb.s_sbh, "marking dirty");
+	mark_buffer_dirty(sb->u.ext3_sb.s_sbh);
+	if (sync) {
+		ll_rw_block(WRITE, 1, &sb->u.ext3_sb.s_sbh);
+		wait_on_buffer(sb->u.ext3_sb.s_sbh);
+	}
+}
+
+
+/*
+ * Have we just finished recovery?  If so, and if we are mounting (or
+ * remounting) the filesystem readonly, then we will end up with a
+ * consistent fs on disk.  Record that fact.
+ */
+static void ext3_mark_recovery_complete(struct super_block * sb,
+					struct ext3_super_block * es)
+{
+	journal_flush(EXT3_SB(sb)->s_journal);
+	if (EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER) &&
+	    sb->s_flags & MS_RDONLY) {
+		EXT3_CLEAR_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);
+		sb->s_dirt = 0;
+		ext3_commit_super(sb, es, 1);
+	}
+}
+
+/*
+ * If we are mounting (or read-write remounting) a filesystem whose journal
+ * has recorded an error from a previous lifetime, move that error to the
+ * main filesystem now.
+ */
+static void ext3_clear_journal_err(struct super_block * sb,
+				   struct ext3_super_block * es)
+{
+	journal_t *journal;
+	int j_errno;
+	const char *errstr;
+	
+	journal = EXT3_SB(sb)->s_journal;
+
+	/*
+	 * Now check for any error status which may have been recorded in the
+	 * journal by a prior ext3_error() or ext3_abort()
+	 */
+
+	j_errno = journal_errno(journal);
+	if (j_errno) {
+		char nbuf[16];
+		
+		errstr = ext3_decode_error(sb, j_errno, nbuf);
+		ext3_warning(sb, __FUNCTION__, "Filesystem error recorded "
+			     "from previous mount: %s", errstr);
+		ext3_warning(sb, __FUNCTION__, "Marking fs in need of "
+			     "filesystem check.");
+		
+		sb->u.ext3_sb.s_mount_state |= EXT3_ERROR_FS;
+		es->s_state |= cpu_to_le16(EXT3_ERROR_FS);
+		ext3_commit_super (sb, es, 1);
+
+		journal_clear_err(journal);
+	}
+}
+
+/*
+ * Force the running and committing transactions to commit,
+ * and wait on the commit.
+ */
+int ext3_force_commit(struct super_block *sb)
+{
+	journal_t *journal;
+	int ret;
+
+	if (sb->s_flags & MS_RDONLY)
+		return 0;
+
+	journal = EXT3_SB(sb)->s_journal;
+	sb->s_dirt = 0;
+	lock_kernel();	/* important: lock down j_running_transaction */
+	ret = ext3_journal_force_commit(journal);
+	unlock_kernel();
+	return ret;
+}
+
+/*
+ * Ext3 always journals updates to the superblock itself, so we don't
+ * have to propagate any other updates to the superblock on disk at this
+ * point.  Just start an async writeback to get the buffers on their way
+ * to the disk.
+ *
+ * This implicitly triggers the writebehind on sync().
+ */
+
+void ext3_write_super (struct super_block * sb)
+{
+	if (down_trylock(&sb->s_lock) == 0)
+		BUG();
+	sb->s_dirt = 0;
+	log_start_commit(EXT3_SB(sb)->s_journal, NULL);
+}
+
+static int ext3_sync_fs(struct super_block *sb)
+{
+	tid_t target;
+	
+	sb->s_dirt = 0;
+	target = log_start_commit(EXT3_SB(sb)->s_journal, NULL);
+	log_wait_commit(EXT3_SB(sb)->s_journal, target);
+	return 0;
+}
+
+/*
+ * LVM calls this function before a (read-only) snapshot is created.  This
+ * gives us a chance to flush the journal completely and mark the fs clean.
+ */
+void ext3_write_super_lockfs(struct super_block *sb)
+{
+	sb->s_dirt = 0;
+
+	lock_kernel();		/* 2.4.5 forgot to do this for us */
+	if (!(sb->s_flags & MS_RDONLY)) {
+		journal_t *journal = EXT3_SB(sb)->s_journal;
+
+		/* Now we set up the journal barrier. */
+		unlock_super(sb);
+		journal_lock_updates(journal);
+		journal_flush(journal);
+		lock_super(sb);
+
+		/* Journal blocked and flushed, clear needs_recovery flag. */
+		EXT3_CLEAR_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);
+		ext3_commit_super(sb, EXT3_SB(sb)->s_es, 1);
+	}
+	unlock_kernel();
+}
+
+/*
+ * Called by LVM after the snapshot is done.  We need to reset the RECOVER
+ * flag here, even though the filesystem is not technically dirty yet.
+ */
+void ext3_unlockfs(struct super_block *sb)
+{
+	if (!(sb->s_flags & MS_RDONLY)) {
+		lock_kernel();
+		lock_super(sb);
+		/* Reser the needs_recovery flag before the fs is unlocked. */
+		EXT3_SET_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);
+		ext3_commit_super(sb, EXT3_SB(sb)->s_es, 1);
+		unlock_super(sb);
+		journal_unlock_updates(EXT3_SB(sb)->s_journal);
+		unlock_kernel();
+	}
+}
+
+int ext3_remount (struct super_block * sb, int * flags, char * data)
+{
+	struct ext3_super_block * es;
+	struct ext3_sb_info *sbi = EXT3_SB(sb);
+	unsigned long tmp;
+
+	clear_ro_after(sb);
+
+	/*
+	 * Allow the "check" option to be passed as a remount option.
+	 */
+	if (!parse_options(data, &tmp, sbi, &tmp, 1))
+		return -EINVAL;
+
+	if (sbi->s_mount_opt & EXT3_MOUNT_ABORT)
+		ext3_abort(sb, __FUNCTION__, "Abort forced by user");
+
+	es = sbi->s_es;
+
+	ext3_init_journal_params(sbi, sbi->s_journal);
+	
+	if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) {
+		if (sbi->s_mount_opt & EXT3_MOUNT_ABORT)
+			return -EROFS;
+
+		if (*flags & MS_RDONLY) {
+			/*
+			 * First of all, the unconditional stuff we have to do
+			 * to disable replay of the journal when we next remount
+			 */
+			sb->s_flags |= MS_RDONLY;
+
+			/*
+			 * OK, test if we are remounting a valid rw partition
+			 * readonly, and if so set the rdonly flag and then
+			 * mark the partition as valid again.
+			 */
+			if (!(es->s_state & cpu_to_le16(EXT3_VALID_FS)) &&
+			    (sbi->s_mount_state & EXT3_VALID_FS))
+				es->s_state = cpu_to_le16(sbi->s_mount_state);
+
+			ext3_mark_recovery_complete(sb, es);
+		} else {
+			int ret;
+			if ((ret = EXT3_HAS_RO_COMPAT_FEATURE(sb,
+					~EXT3_FEATURE_RO_COMPAT_SUPP))) {
+				printk(KERN_WARNING "EXT3-fs: %s: couldn't "
+				       "remount RDWR because of unsupported "
+				       "optional features (%x).\n",
+				       bdevname(sb->s_dev), ret);
+				return -EROFS;
+			}
+			/*
+			 * Mounting a RDONLY partition read-write, so reread
+			 * and store the current valid flag.  (It may have
+			 * been changed by e2fsck since we originally mounted
+			 * the partition.)
+			 */
+			ext3_clear_journal_err(sb, es);
+			sbi->s_mount_state = le16_to_cpu(es->s_state);
+			if (!ext3_setup_super (sb, es, 0))
+				sb->s_flags &= ~MS_RDONLY;
+		}
+	}
+	setup_ro_after(sb);
+	return 0;
+}
+
+int ext3_statfs (struct super_block * sb, struct statfs * buf)
+{
+	struct ext3_super_block *es = EXT3_SB(sb)->s_es;
+	unsigned long overhead;
+	int i;
+
+	if (test_opt (sb, MINIX_DF))
+		overhead = 0;
+	else {
+		/*
+		 * Compute the overhead (FS structures)
+		 */
+
+		/*
+		 * All of the blocks before first_data_block are
+		 * overhead
+		 */
+		overhead = le32_to_cpu(es->s_first_data_block);
+
+		/*
+		 * Add the overhead attributed to the superblock and
+		 * block group descriptors.  If the sparse superblocks
+		 * feature is turned on, then not all groups have this.
+		 */
+		for (i = 0; i < EXT3_SB(sb)->s_groups_count; i++)
+			overhead += ext3_bg_has_super(sb, i) +
+				ext3_bg_num_gdb(sb, i);
+
+		/*
+		 * Every block group has an inode bitmap, a block
+		 * bitmap, and an inode table.
+		 */
+		overhead += (EXT3_SB(sb)->s_groups_count *
+			     (2 + EXT3_SB(sb)->s_itb_per_group));
+	}
+
+	buf->f_type = EXT3_SUPER_MAGIC;
+	buf->f_bsize = sb->s_blocksize;
+	buf->f_blocks = le32_to_cpu(es->s_blocks_count) - overhead;
+	buf->f_bfree = ext3_count_free_blocks (sb);
+	buf->f_bavail = buf->f_bfree - le32_to_cpu(es->s_r_blocks_count);
+	if (buf->f_bfree < le32_to_cpu(es->s_r_blocks_count))
+		buf->f_bavail = 0;
+	buf->f_files = le32_to_cpu(es->s_inodes_count);
+	buf->f_ffree = ext3_count_free_inodes (sb);
+	buf->f_namelen = EXT3_NAME_LEN;
+	return 0;
+}
+
+/* Helper function for writing quotas on sync - we need to start transaction before quota file
+ * is locked for write. Otherwise the are possible deadlocks:
+ * Process 1                         Process 2
+ * ext3_create()                     quota_sync()
+ *   journal_start()                   write_dquot()
+ *   DQUOT_INIT()                        down(dqio_sem)
+ *     down(dqio_sem)                    journal_start()
+ *
+ */
+
+#ifdef CONFIG_QUOTA
+
+static int (*old_write_dquot)(struct dquot *dquot);
+
+/* Blocks: (2 data blocks) * (3 indirect + 1 descriptor + 1 bitmap) + superblock */
+#define EXT3_OLD_QFMT_BLOCKS 11
+/* Blocks: quota info + (4 pointer blocks + 1 entry block) * (3 indirect + 1 descriptor + 1 bitmap) + superblock */
+#define EXT3_V0_QFMT_BLOCKS 27
+
+static int ext3_write_dquot(struct dquot *dquot)
+{
+	int nblocks, ret;
+	handle_t *handle;
+	struct quota_info *dqops = sb_dqopt(dquot->dq_sb);
+	struct inode *qinode;
+
+	switch (dqops->info[dquot->dq_type].dqi_format->qf_fmt_id) {
+		case QFMT_VFS_OLD:
+			nblocks = EXT3_OLD_QFMT_BLOCKS;
+			break;
+		case QFMT_VFS_V0:
+			nblocks = EXT3_V0_QFMT_BLOCKS;
+			break;
+		default:
+			nblocks = EXT3_MAX_TRANS_DATA;
+	}
+	lock_kernel();
+	qinode = dqops->files[dquot->dq_type]->f_dentry->d_inode;
+	handle = ext3_journal_start(qinode, nblocks);
+	if (IS_ERR(handle)) {
+		unlock_kernel();
+		return PTR_ERR(handle);
+	}
+	unlock_kernel();
+	ret = old_write_dquot(dquot);
+	lock_kernel();
+	ret = ext3_journal_stop(handle, qinode);
+	unlock_kernel();
+	return ret;
+}
+#endif
+
+static DECLARE_FSTYPE_DEV(ext3_fs_type, "ext3", ext3_read_super);
+
+static int __init init_ext3_fs(void)
+{
+#ifdef CONFIG_QUOTA
+	init_dquot_operations(&ext3_qops);
+	old_write_dquot = ext3_qops.write_dquot;
+	ext3_qops.write_dquot = ext3_write_dquot;
+#endif
+        return register_filesystem(&ext3_fs_type);
+}
+
+static void __exit exit_ext3_fs(void)
+{
+	unregister_filesystem(&ext3_fs_type);
+}
+
+EXPORT_NO_SYMBOLS;
+
+MODULE_AUTHOR("Remy Card, Stephen Tweedie, Andrew Morton, Andreas Dilger, Theodore Ts'o and others");
+MODULE_DESCRIPTION("Second Extended Filesystem with journaling extensions");
+MODULE_LICENSE("GPL");
+module_init(init_ext3_fs)
+module_exit(exit_ext3_fs)
diff --git a/fs/ext3/symlink.c b/fs/ext3/symlink.c
new file mode 100644
index 00000000000000..87f91adbd2acbd
--- /dev/null
+++ b/fs/ext3/symlink.c
@@ -0,0 +1,39 @@
+/*
+ *  linux/fs/ext3/symlink.c
+ *
+ * Only fast symlinks left here - the rest is done by generic code. AV, 1999
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ *  from
+ *
+ *  linux/fs/minix/symlink.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  ext3 symlink handling code
+ */
+
+#include <linux/fs.h>
+#include <linux/jbd.h>
+#include <linux/ext3_fs.h>
+
+static int ext3_readlink(struct dentry *dentry, char *buffer, int buflen)
+{
+	char *s = (char *)dentry->d_inode->u.ext3_i.i_data;
+	return vfs_readlink(dentry, buffer, buflen, s);
+}
+
+static int ext3_follow_link(struct dentry *dentry, struct nameidata *nd)
+{
+	char *s = (char *)dentry->d_inode->u.ext3_i.i_data;
+	return vfs_follow_link(nd, s);
+}
+
+struct inode_operations ext3_fast_symlink_inode_operations = {
+	readlink:	ext3_readlink,		/* BKL not held.  Don't need */
+	follow_link:	ext3_follow_link,	/* BKL not held.  Don't need */
+};
diff --git a/fs/fat/Makefile b/fs/fat/Makefile
new file mode 100644
index 00000000000000..d1e503117bafcb
--- /dev/null
+++ b/fs/fat/Makefile
@@ -0,0 +1,17 @@
+#
+# Makefile for the Linux fat filesystem support.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile.
+
+O_TARGET := fat.o
+
+export-objs := fatfs_syms.o
+
+obj-y    := buffer.o cache.o dir.o file.o inode.o misc.o cvf.o fatfs_syms.o
+obj-m    := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/fat/buffer.c b/fs/fat/buffer.c
new file mode 100644
index 00000000000000..117d85b33ae7e7
--- /dev/null
+++ b/fs/fat/buffer.c
@@ -0,0 +1,102 @@
+/*
+ * linux/fs/fat/buffer.c
+ *
+ *
+ */
+
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/fs.h>
+#include <linux/blkdev.h>
+#include <linux/msdos_fs.h>
+#include <linux/fat_cvf.h>
+
+#if 0
+#  define PRINTK(x) printk x
+#else
+#  define PRINTK(x)
+#endif
+
+struct buffer_head *fat_bread(struct super_block *sb, int block)
+{
+	return MSDOS_SB(sb)->cvf_format->cvf_bread(sb,block);
+}
+struct buffer_head *fat_getblk(struct super_block *sb, int block)
+{
+	return MSDOS_SB(sb)->cvf_format->cvf_getblk(sb,block);
+}
+void fat_brelse (struct super_block *sb, struct buffer_head *bh)
+{
+	if (bh) 
+		MSDOS_SB(sb)->cvf_format->cvf_brelse(sb,bh);
+}
+void fat_mark_buffer_dirty (
+	struct super_block *sb,
+	struct buffer_head *bh)
+{
+	MSDOS_SB(sb)->cvf_format->cvf_mark_buffer_dirty(sb,bh);
+}
+void fat_set_uptodate (
+	struct super_block *sb,
+	struct buffer_head *bh,
+	int val)
+{
+	MSDOS_SB(sb)->cvf_format->cvf_set_uptodate(sb,bh,val);
+}
+int fat_is_uptodate(struct super_block *sb, struct buffer_head *bh)
+{
+	return MSDOS_SB(sb)->cvf_format->cvf_is_uptodate(sb,bh);
+}
+void fat_ll_rw_block (
+	struct super_block *sb,
+	int opr,
+	int nbreq,
+	struct buffer_head *bh[32])
+{
+	MSDOS_SB(sb)->cvf_format->cvf_ll_rw_block(sb,opr,nbreq,bh);
+}
+
+struct buffer_head *default_fat_bread(struct super_block *sb, int block)
+{
+	return sb_bread(sb, block);
+}
+
+struct buffer_head *default_fat_getblk(struct super_block *sb, int block)
+{
+	return sb_getblk(sb, block);
+}
+
+void default_fat_brelse(struct super_block *sb, struct buffer_head *bh)
+{
+	brelse (bh);
+}
+
+void default_fat_mark_buffer_dirty (
+	struct super_block *sb,
+	struct buffer_head *bh)
+{
+	mark_buffer_dirty (bh);
+}
+
+void default_fat_set_uptodate (
+	struct super_block *sb,
+	struct buffer_head *bh,
+	int val)
+{
+	mark_buffer_uptodate(bh, val);
+}
+
+int default_fat_is_uptodate (struct super_block *sb, struct buffer_head *bh)
+{
+	return buffer_uptodate(bh);
+}
+
+void default_fat_ll_rw_block (
+	struct super_block *sb,
+	int opr,
+	int nbreq,
+	struct buffer_head *bh[32])
+{
+	ll_rw_block(opr,nbreq,bh);
+}
diff --git a/fs/fat/cache.c b/fs/fat/cache.c
new file mode 100644
index 00000000000000..7240bc8a2e52e1
--- /dev/null
+++ b/fs/fat/cache.c
@@ -0,0 +1,362 @@
+/*
+ *  linux/fs/fat/cache.c
+ *
+ *  Written 1992,1993 by Werner Almesberger
+ *
+ *  Mar 1999. AV. Changed cache, so that it uses the starting cluster instead
+ *	of inode number.
+ *  May 1999. AV. Fixed the bogosity with FAT32 (read "FAT28"). Fscking lusers.
+ */
+
+#include <linux/msdos_fs.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/stat.h>
+#include <linux/fat_cvf.h>
+
+#if 0
+#  define PRINTK(x) printk x
+#else
+#  define PRINTK(x)
+#endif
+
+static struct fat_cache *fat_cache,cache[FAT_CACHE];
+static spinlock_t fat_cache_lock = SPIN_LOCK_UNLOCKED;
+
+/* Returns the this'th FAT entry, -1 if it is an end-of-file entry. If
+   new_value is != -1, that FAT entry is replaced by it. */
+
+int fat_access(struct super_block *sb,int nr,int new_value)
+{
+	return MSDOS_SB(sb)->cvf_format->fat_access(sb,nr,new_value);
+}
+
+int fat_bmap(struct inode *inode,int sector)
+{
+	return MSDOS_SB(inode->i_sb)->cvf_format->cvf_bmap(inode,sector);
+}
+
+int default_fat_access(struct super_block *sb,int nr,int new_value)
+{
+	struct buffer_head *bh, *bh2, *c_bh, *c_bh2;
+	unsigned char *p_first, *p_last;
+	int copy, first, last, next, b;
+
+	if ((unsigned) (nr-2) >= MSDOS_SB(sb)->clusters)
+		return 0;
+	if (MSDOS_SB(sb)->fat_bits == 32) {
+		first = last = nr*4;
+	} else if (MSDOS_SB(sb)->fat_bits == 16) {
+		first = last = nr*2;
+	} else {
+		first = nr*3/2;
+		last = first+1;
+	}
+	b = MSDOS_SB(sb)->fat_start + (first >> sb->s_blocksize_bits);
+	if (!(bh = fat_bread(sb, b))) {
+		printk("bread in fat_access failed\n");
+		return 0;
+	}
+	if ((first >> sb->s_blocksize_bits) == (last >> sb->s_blocksize_bits)) {
+		bh2 = bh;
+	} else {
+		if (!(bh2 = fat_bread(sb, b+1))) {
+			fat_brelse(sb, bh);
+			printk("2nd bread in fat_access failed\n");
+			return 0;
+		}
+	}
+	if (MSDOS_SB(sb)->fat_bits == 32) {
+		p_first = p_last = NULL; /* GCC needs that stuff */
+		next = CF_LE_L(((__u32 *) bh->b_data)[(first &
+		    (sb->s_blocksize - 1)) >> 2]);
+		/* Fscking Microsoft marketing department. Their "32" is 28. */
+		next &= 0xfffffff;
+		if (next >= 0xffffff7) next = -1;
+		PRINTK(("fat_bread: 0x%x, nr=0x%x, first=0x%x, next=0x%x\n", b, nr, first, next));
+
+	} else if (MSDOS_SB(sb)->fat_bits == 16) {
+		p_first = p_last = NULL; /* GCC needs that stuff */
+		next = CF_LE_W(((__u16 *) bh->b_data)[(first &
+		    (sb->s_blocksize - 1)) >> 1]);
+		if (next >= 0xfff7) next = -1;
+	} else {
+		p_first = &((__u8 *)bh->b_data)[first & (sb->s_blocksize - 1)];
+		p_last = &((__u8 *)bh2->b_data)[(first + 1) & (sb->s_blocksize - 1)];
+		if (nr & 1) next = ((*p_first >> 4) | (*p_last << 4)) & 0xfff;
+		else next = (*p_first+(*p_last << 8)) & 0xfff;
+		if (next >= 0xff7) next = -1;
+	}
+	if (new_value != -1) {
+		if (MSDOS_SB(sb)->fat_bits == 32) {
+			((__u32 *)bh->b_data)[(first & (sb->s_blocksize - 1)) >> 2]
+				= CT_LE_L(new_value);
+		} else if (MSDOS_SB(sb)->fat_bits == 16) {
+			((__u16 *)bh->b_data)[(first & (sb->s_blocksize - 1)) >> 1]
+				= CT_LE_W(new_value);
+		} else {
+			if (nr & 1) {
+				*p_first = (*p_first & 0xf) | (new_value << 4);
+				*p_last = new_value >> 4;
+			}
+			else {
+				*p_first = new_value & 0xff;
+				*p_last = (*p_last & 0xf0) | (new_value >> 8);
+			}
+			fat_mark_buffer_dirty(sb, bh2);
+		}
+		fat_mark_buffer_dirty(sb, bh);
+		for (copy = 1; copy < MSDOS_SB(sb)->fats; copy++) {
+			b = MSDOS_SB(sb)->fat_start + (first >> sb->s_blocksize_bits)
+				+ MSDOS_SB(sb)->fat_length * copy;
+			if (!(c_bh = fat_bread(sb, b)))
+				break;
+			if (bh != bh2) {
+				if (!(c_bh2 = fat_bread(sb, b+1))) {
+					fat_brelse(sb, c_bh);
+					break;
+				}
+				memcpy(c_bh2->b_data, bh2->b_data, sb->s_blocksize);
+				fat_mark_buffer_dirty(sb, c_bh2);
+				fat_brelse(sb, c_bh2);
+			}
+			memcpy(c_bh->b_data, bh->b_data, sb->s_blocksize);
+			fat_mark_buffer_dirty(sb, c_bh);
+			fat_brelse(sb, c_bh);
+		}
+	}
+	fat_brelse(sb, bh);
+	if (bh != bh2)
+		fat_brelse(sb, bh2);
+	return next;
+}
+
+void fat_cache_init(void)
+{
+	static int initialized = 0;
+	int count;
+
+	spin_lock(&fat_cache_lock);
+	if (initialized) {
+		spin_unlock(&fat_cache_lock);
+		return;
+	}
+	fat_cache = &cache[0];
+	for (count = 0; count < FAT_CACHE; count++) {
+		cache[count].device = 0;
+		cache[count].next = count == FAT_CACHE-1 ? NULL :
+		    &cache[count+1];
+	}
+	initialized = 1;
+	spin_unlock(&fat_cache_lock);
+}
+
+
+void fat_cache_lookup(struct inode *inode,int cluster,int *f_clu,int *d_clu)
+{
+	struct fat_cache *walk;
+	int first = MSDOS_I(inode)->i_start;
+
+	if (!first)
+		return;
+	spin_lock(&fat_cache_lock);
+	for (walk = fat_cache; walk; walk = walk->next)
+		if (inode->i_dev == walk->device
+		    && walk->start_cluster == first
+		    && walk->file_cluster <= cluster
+		    && walk->file_cluster > *f_clu) {
+			*d_clu = walk->disk_cluster;
+#ifdef DEBUG
+printk("cache hit: %d (%d)\n",walk->file_cluster,*d_clu);
+#endif
+			if ((*f_clu = walk->file_cluster) == cluster) { 
+				spin_unlock(&fat_cache_lock);
+				return;
+			}
+		}
+	spin_unlock(&fat_cache_lock);
+#ifdef DEBUG
+printk("cache miss\n");
+#endif
+}
+
+
+#ifdef DEBUG
+static void list_cache(void)
+{
+	struct fat_cache *walk;
+
+	for (walk = fat_cache; walk; walk = walk->next) {
+		if (walk->device)
+			printk("<%s,%d>(%d,%d) ", kdevname(walk->device),
+			       walk->start_cluster, walk->file_cluster,
+			       walk->disk_cluster);
+		else printk("-- ");
+	}
+	printk("\n");
+}
+#endif
+
+
+void fat_cache_add(struct inode *inode,int f_clu,int d_clu)
+{
+	struct fat_cache *walk,*last;
+	int first = MSDOS_I(inode)->i_start;
+
+	last = NULL;
+	spin_lock(&fat_cache_lock);
+	for (walk = fat_cache; walk->next; walk = (last = walk)->next)
+		if (inode->i_dev == walk->device
+		    && walk->start_cluster == first
+		    && walk->file_cluster == f_clu) {
+			if (walk->disk_cluster != d_clu) {
+				printk("FAT cache corruption inode=%ld\n",
+					inode->i_ino);
+				spin_unlock(&fat_cache_lock);
+				fat_cache_inval_inode(inode);
+				return;
+			}
+			/* update LRU */
+			if (last == NULL) {
+				spin_unlock(&fat_cache_lock);
+				return;
+			}
+			last->next = walk->next;
+			walk->next = fat_cache;
+			fat_cache = walk;
+#ifdef DEBUG
+list_cache();
+#endif
+			spin_unlock(&fat_cache_lock);
+			return;
+		}
+	walk->device = inode->i_dev;
+	walk->start_cluster = first;
+	walk->file_cluster = f_clu;
+	walk->disk_cluster = d_clu;
+	last->next = NULL;
+	walk->next = fat_cache;
+	fat_cache = walk;
+	spin_unlock(&fat_cache_lock);
+#ifdef DEBUG
+list_cache();
+#endif
+}
+
+
+/* Cache invalidation occurs rarely, thus the LRU chain is not updated. It
+   fixes itself after a while. */
+
+void fat_cache_inval_inode(struct inode *inode)
+{
+	struct fat_cache *walk;
+	int first = MSDOS_I(inode)->i_start;
+
+	spin_lock(&fat_cache_lock);
+	for (walk = fat_cache; walk; walk = walk->next)
+		if (walk->device == inode->i_dev
+		    && walk->start_cluster == first)
+			walk->device = 0;
+	spin_unlock(&fat_cache_lock);
+}
+
+
+void fat_cache_inval_dev(kdev_t device)
+{
+	struct fat_cache *walk;
+
+	spin_lock(&fat_cache_lock);
+	for (walk = fat_cache; walk; walk = walk->next)
+		if (walk->device == device)
+			walk->device = 0;
+	spin_unlock(&fat_cache_lock);
+}
+
+
+int fat_get_cluster(struct inode *inode,int cluster)
+{
+	int nr,count;
+
+	if (!(nr = MSDOS_I(inode)->i_start)) return 0;
+	if (!cluster) return nr;
+	count = 0;
+	for (fat_cache_lookup(inode,cluster,&count,&nr); count < cluster;
+	    count++) {
+		if ((nr = fat_access(inode->i_sb,nr,-1)) == -1) return 0;
+		if (!nr) return 0;
+	}
+	fat_cache_add(inode,cluster,nr);
+	return nr;
+}
+
+int default_fat_bmap(struct inode *inode,int sector)
+{
+	struct super_block *sb = inode->i_sb;
+	struct msdos_sb_info *sbi = MSDOS_SB(sb);
+	int cluster, offset, last_block;
+
+	if ((sbi->fat_bits != 32) &&
+	    (inode->i_ino == MSDOS_ROOT_INO || (S_ISDIR(inode->i_mode) &&
+	     !MSDOS_I(inode)->i_start))) {
+		if (sector >= sbi->dir_entries >> sbi->dir_per_block_bits)
+			return 0;
+		return sector + sbi->dir_start;
+	}
+	last_block = (MSDOS_I(inode)->mmu_private + (sb->s_blocksize - 1))
+		>> sb->s_blocksize_bits;
+	if (sector >= last_block)
+		return 0;
+
+	cluster = sector / sbi->cluster_size;
+	offset  = sector % sbi->cluster_size;
+	if (!(cluster = fat_get_cluster(inode, cluster)))
+		return 0;
+
+	return (cluster - 2) * sbi->cluster_size + sbi->data_start + offset;
+}
+
+
+/* Free all clusters after the skip'th cluster. Doesn't use the cache,
+   because this way we get an additional sanity check. */
+
+int fat_free(struct inode *inode,int skip)
+{
+	int nr,last;
+
+	if (!(nr = MSDOS_I(inode)->i_start)) return 0;
+	last = 0;
+	while (skip--) {
+		last = nr;
+		if ((nr = fat_access(inode->i_sb,nr,-1)) == -1) return 0;
+		if (!nr) {
+			printk("fat_free: skipped EOF\n");
+			return -EIO;
+		}
+	}
+	if (last) {
+		fat_access(inode->i_sb,last,EOF_FAT(inode->i_sb));
+		fat_cache_inval_inode(inode);
+	} else {
+		fat_cache_inval_inode(inode);
+		MSDOS_I(inode)->i_start = 0;
+		MSDOS_I(inode)->i_logstart = 0;
+		mark_inode_dirty(inode);
+	}
+	lock_fat(inode->i_sb);
+	while (nr != -1) {
+		if (!(nr = fat_access(inode->i_sb,nr,0))) {
+			fat_fs_panic(inode->i_sb,"fat_free: deleting beyond EOF");
+			break;
+		}
+		if (MSDOS_SB(inode->i_sb)->free_clusters != -1) {
+			MSDOS_SB(inode->i_sb)->free_clusters++;
+			if (MSDOS_SB(inode->i_sb)->fat_bits == 32) {
+				fat_clusters_flush(inode->i_sb);
+			}
+		}
+		inode->i_blocks -= (1 << MSDOS_SB(inode->i_sb)->cluster_bits) / 512;
+	}
+	unlock_fat(inode->i_sb);
+	return 0;
+}
diff --git a/fs/fat/cvf.c b/fs/fat/cvf.c
new file mode 100644
index 00000000000000..37dd78c579431b
--- /dev/null
+++ b/fs/fat/cvf.c
@@ -0,0 +1,177 @@
+/* 
+ * CVF extensions for fat-based filesystems
+ *
+ * written 1997,1998 by Frank Gockel <gockel@sent13.uni-duisburg.de>
+ *
+ * please do not remove the next line, dmsdos needs it for verifying patches
+ * CVF-FAT-VERSION-ID: 1.2.0
+ *
+ */
+ 
+#include<linux/sched.h>
+#include<linux/fs.h>
+#include<linux/msdos_fs.h>
+#include<linux/msdos_fs_sb.h>
+#include<linux/string.h>
+#include<linux/fat_cvf.h>
+#include<linux/config.h>
+#ifdef CONFIG_KMOD
+#include<linux/kmod.h>
+#endif
+
+#define MAX_CVF_FORMATS 3
+
+struct buffer_head *default_fat_bread(struct super_block *,int);
+struct buffer_head *default_fat_getblk(struct super_block *, int);
+void default_fat_brelse(struct super_block *, struct buffer_head *);
+void default_fat_mark_buffer_dirty (struct super_block *, struct buffer_head *);
+void default_fat_set_uptodate (struct super_block *, struct buffer_head *,int);
+int default_fat_is_uptodate(struct super_block *, struct buffer_head *);
+int default_fat_access(struct super_block *sb,int nr,int new_value);
+void default_fat_ll_rw_block (struct super_block *sb, int opr, int nbreq,
+			      struct buffer_head *bh[32]);
+int default_fat_bmap(struct inode *inode,int block);
+ssize_t default_fat_file_write(struct file *filp, const char *buf,
+			       size_t count, loff_t *ppos);
+
+struct cvf_format default_cvf = {
+	cvf_version: 		0,	/* version - who cares? */	
+	cvf_version_text: 	"plain",
+	flags:			0,	/* flags - who cares? */
+	cvf_bread:		default_fat_bread,
+	cvf_getblk:		default_fat_getblk,
+	cvf_brelse:		default_fat_brelse,
+	cvf_mark_buffer_dirty:	default_fat_mark_buffer_dirty,
+	cvf_set_uptodate:	default_fat_set_uptodate,
+	cvf_is_uptodate:	default_fat_is_uptodate,
+	cvf_ll_rw_block:	default_fat_ll_rw_block,
+	fat_access:		default_fat_access,
+	cvf_bmap:		default_fat_bmap,
+	cvf_file_read:		generic_file_read,
+	cvf_file_write:		default_fat_file_write,
+};
+
+struct cvf_format *cvf_formats[MAX_CVF_FORMATS];
+int cvf_format_use_count[MAX_CVF_FORMATS];
+
+int register_cvf_format(struct cvf_format*cvf_format)
+{ int i,j;
+
+  for(i=0;i<MAX_CVF_FORMATS;++i)
+  { if(cvf_formats[i]==NULL)
+    { /* free slot found, now check version */
+      for(j=0;j<MAX_CVF_FORMATS;++j)
+      { if(cvf_formats[j])
+        { if(cvf_formats[j]->cvf_version==cvf_format->cvf_version)
+          { printk("register_cvf_format: version %d already registered\n",
+                   cvf_format->cvf_version);
+            return -1;
+          }
+        }
+      }
+      cvf_formats[i]=cvf_format;
+      cvf_format_use_count[i]=0;
+      printk("CVF format %s (version id %d) successfully registered.\n",
+             cvf_format->cvf_version_text,cvf_format->cvf_version);
+      return 0;
+    }
+  }
+  
+  printk("register_cvf_format: too many formats\n");
+  return -1;
+}
+
+int unregister_cvf_format(struct cvf_format*cvf_format)
+{ int i;
+
+  for(i=0;i<MAX_CVF_FORMATS;++i)
+  { if(cvf_formats[i])
+    { if(cvf_formats[i]->cvf_version==cvf_format->cvf_version)
+      { if(cvf_format_use_count[i])
+        { printk("unregister_cvf_format: format %d in use, cannot remove!\n",
+          cvf_formats[i]->cvf_version);
+          return -1;
+        }
+      
+        printk("CVF format %s (version id %d) successfully unregistered.\n",
+        cvf_formats[i]->cvf_version_text,cvf_formats[i]->cvf_version);
+        cvf_formats[i]=NULL;
+        return 0;
+      }
+    }
+  }
+  
+  printk("unregister_cvf_format: format %d is not registered\n",
+         cvf_format->cvf_version);
+  return -1;
+}
+
+void dec_cvf_format_use_count_by_version(int version)
+{ int i;
+
+  for(i=0;i<MAX_CVF_FORMATS;++i)
+  { if(cvf_formats[i])
+    { if(cvf_formats[i]->cvf_version==version)
+      { --cvf_format_use_count[i];
+        if(cvf_format_use_count[i]<0)
+        { cvf_format_use_count[i]=0;
+          printk(KERN_EMERG "FAT FS/CVF: This is a bug in cvf_version_use_count\n");
+        }
+        return;
+      }
+    }
+  }
+  
+  printk("dec_cvf_format_use_count_by_version: version %d not found ???\n",
+         version);
+}
+
+int detect_cvf(struct super_block*sb,char*force)
+{ int i;
+  int found=0;
+  int found_i=-1;
+
+  if(force)
+    if(strcmp(force,"autoload")==0)
+    {
+#ifdef CONFIG_KMOD
+      request_module("cvf_autoload");
+      force=NULL;
+#else
+      printk("cannot autoload CVF modules: kmod support is not compiled into kernel\n");
+      return -1;
+#endif
+    }
+    
+#ifdef CONFIG_KMOD
+  if(force)
+    if(*force)
+      request_module(force);
+#endif
+
+  if(force)
+  { if(*force)
+    { for(i=0;i<MAX_CVF_FORMATS;++i)
+      { if(cvf_formats[i])
+        { if(!strcmp(cvf_formats[i]->cvf_version_text,force))
+            return i;
+        }
+      }
+      printk("CVF format %s unknown (module not loaded?)\n",force);
+      return -1;
+    }
+  }
+
+  for(i=0;i<MAX_CVF_FORMATS;++i)
+  { if(cvf_formats[i])
+    { if(cvf_formats[i]->detect_cvf(sb))
+      { ++found;
+        found_i=i;
+      }
+    }
+  }
+  
+  if(found==1)return found_i;
+  if(found>1)printk("CVF detection ambiguous, please use cvf_format=xxx option\n"); 
+  return -1;
+}
diff --git a/fs/fat/dir.c b/fs/fat/dir.c
new file mode 100644
index 00000000000000..08422f5a3227b5
--- /dev/null
+++ b/fs/fat/dir.c
@@ -0,0 +1,798 @@
+/*
+ *  linux/fs/fat/dir.c
+ *
+ *  directory handling functions for fat-based filesystems
+ *
+ *  Written 1992,1993 by Werner Almesberger
+ *
+ *  Hidden files 1995 by Albert Cahalan <albert@ccs.neu.edu> <adc@coe.neu.edu>
+ *
+ *  VFAT extensions by Gordon Chaffee <chaffee@plateau.cs.berkeley.edu>
+ *  Merged with msdos fs by Henrik Storner <storner@osiris.ping.dk>
+ *  Rewritten for constant inumbers. Plugged buffer overrun in readdir(). AV
+ *  Short name translation 1999, 2001 by Wolfram Pienkoss <wp@bszh.de>
+ */
+
+#include <linux/fs.h>
+#include <linux/msdos_fs.h>
+#include <linux/nls.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <linux/ioctl.h>
+#include <linux/dirent.h>
+#include <linux/mm.h>
+#include <linux/ctype.h>
+
+#include <asm/uaccess.h>
+
+#define PRINTK(X)
+
+struct file_operations fat_dir_operations = {
+	read:		generic_read_dir,
+	readdir:	fat_readdir,
+	ioctl:		fat_dir_ioctl,
+	fsync:		file_fsync,
+};
+
+/*
+ * Convert Unicode 16 to UTF8, translated Unicode, or ASCII.
+ * If uni_xlate is enabled and we can't get a 1:1 conversion, use a
+ * colon as an escape character since it is normally invalid on the vfat
+ * filesystem. The following four characters are the hexadecimal digits
+ * of Unicode value. This lets us do a full dump and restore of Unicode
+ * filenames. We could get into some trouble with long Unicode names,
+ * but ignore that right now.
+ * Ahem... Stack smashing in ring 0 isn't fun. Fixed.
+ */
+static int
+uni16_to_x8(unsigned char *ascii, wchar_t *uni, int uni_xlate,
+	    struct nls_table *nls)
+{
+	wchar_t *ip, ec;
+	unsigned char *op, nc;
+	int charlen;
+	int k;
+
+	ip = uni;
+	op = ascii;
+
+	while (*ip) {
+		ec = *ip++;
+		if ( (charlen = nls->uni2char(ec, op, NLS_MAX_CHARSET_SIZE)) > 0) {
+			op += charlen;
+		} else {
+			if (uni_xlate == 1) {
+				*op = ':';
+				for (k = 4; k > 0; k--) {
+					nc = ec & 0xF;
+					op[k] = nc > 9	? nc + ('a' - 10)
+							: nc + '0';
+					ec >>= 4;
+				}
+				op += 5;
+			} else {
+				*op++ = '?';
+			}
+		}
+		/* We have some slack there, so it's OK */
+		if (op>ascii+256) {
+			op = ascii + 256;
+			break;
+		}
+	}
+	*op = 0;
+	return (op - ascii);
+}
+
+#if 0
+static void dump_de(struct msdos_dir_entry *de)
+{
+	int i;
+	unsigned char *p = (unsigned char *) de;
+	printk("[");
+
+	for (i = 0; i < 32; i++, p++) {
+		printk("%02x ", *p);
+	}
+	printk("]\n");
+}
+#endif
+
+static inline unsigned char
+fat_tolower(struct nls_table *t, unsigned char c)
+{
+	unsigned char nc = t->charset2lower[c];
+
+	return nc ? nc : c;
+}
+
+static inline int
+fat_short2uni(struct nls_table *t, unsigned char *c, int clen, wchar_t *uni)
+{
+	int charlen;
+
+	charlen = t->char2uni(c, clen, uni);
+	if (charlen < 0) {
+		*uni = 0x003f;	/* a question mark */
+		charlen = 1;
+	}
+	return charlen;
+}
+
+static inline int
+fat_short2lower_uni(struct nls_table *t, unsigned char *c, int clen, wchar_t *uni)
+{
+	int charlen;
+	wchar_t wc;
+
+	charlen = t->char2uni(c, clen, &wc);
+	if (charlen < 0) {
+		*uni = 0x003f;	/* a question mark */
+		charlen = 1;
+	} else if (charlen <= 1) {
+		unsigned char nc = t->charset2lower[*c];
+		
+		if (!nc)
+			nc = *c;
+		
+		if ( (charlen = t->char2uni(&nc, 1, uni)) < 0) {
+			*uni = 0x003f;	/* a question mark */
+			charlen = 1;
+		}
+	} else
+		*uni = wc;
+	
+	return charlen;
+}
+
+static int
+fat_strnicmp(struct nls_table *t, const unsigned char *s1,
+					const unsigned char *s2, int len)
+{
+	while(len--)
+		if (fat_tolower(t, *s1++) != fat_tolower(t, *s2++))
+			return 1;
+
+	return 0;
+}
+
+static inline int
+fat_shortname2uni(struct nls_table *nls, char *buf, int buf_size,
+		  wchar_t *uni_buf, unsigned short opt, int lower)
+{
+	int len = 0;
+
+	if (opt & VFAT_SFN_DISPLAY_LOWER)
+		len =  fat_short2lower_uni(nls, buf, buf_size, uni_buf);
+	else if (opt & VFAT_SFN_DISPLAY_WIN95)
+		len = fat_short2uni(nls, buf, buf_size, uni_buf);
+	else if (opt & VFAT_SFN_DISPLAY_WINNT) {
+		if (lower)
+			len = fat_short2lower_uni(nls, buf, buf_size, uni_buf);
+		else 
+			len = fat_short2uni(nls, buf, buf_size, uni_buf);
+	} else
+		len = fat_short2uni(nls, buf, buf_size, uni_buf);
+
+	return len;
+}
+
+/*
+ * Return values: negative -> error, 0 -> not found, positive -> found,
+ * value is the total amount of slots, including the shortname entry.
+ */
+int fat_search_long(struct inode *inode, const char *name, int name_len,
+			int anycase, loff_t *spos, loff_t *lpos)
+{
+	struct super_block *sb = inode->i_sb;
+	struct buffer_head *bh = NULL;
+	struct msdos_dir_entry *de;
+	struct nls_table *nls_io = MSDOS_SB(sb)->nls_io;
+	struct nls_table *nls_disk = MSDOS_SB(sb)->nls_disk;
+	wchar_t bufuname[14];
+	unsigned char xlate_len, long_slots;
+	wchar_t *unicode = NULL;
+	char work[8], bufname[260];	/* 256 + 4 */
+	int uni_xlate = MSDOS_SB(sb)->options.unicode_xlate;
+	int utf8 = MSDOS_SB(sb)->options.utf8;
+	unsigned short opt_shortname = MSDOS_SB(sb)->options.shortname;
+	int chl, i, j, last_u, res = 0;
+	loff_t i_pos, cpos = 0;
+
+	while(1) {
+		if (fat_get_entry(inode,&cpos,&bh,&de,&i_pos) == -1)
+			goto EODir;
+parse_record:
+		long_slots = 0;
+		if (de->name[0] == (__s8) DELETED_FLAG)
+			continue;
+		if (de->attr != ATTR_EXT && (de->attr & ATTR_VOLUME))
+			continue;
+		if (de->attr != ATTR_EXT && IS_FREE(de->name))
+			continue;
+		if (de->attr == ATTR_EXT) {
+			struct msdos_dir_slot *ds;
+			unsigned char id;
+			unsigned char slot;
+			unsigned char slots;
+			unsigned char sum;
+			unsigned char alias_checksum;
+
+			if (!unicode) {
+				unicode = (wchar_t *)
+					__get_free_page(GFP_KERNEL);
+				if (!unicode) {
+					fat_brelse(sb, bh);
+					return -ENOMEM;
+				}
+			}
+parse_long:
+			slots = 0;
+			ds = (struct msdos_dir_slot *) de;
+			id = ds->id;
+			if (!(id & 0x40))
+				continue;
+			slots = id & ~0x40;
+			if (slots > 20 || !slots)	/* ceil(256 * 2 / 26) */
+				continue;
+			long_slots = slots;
+			alias_checksum = ds->alias_checksum;
+
+			slot = slots;
+			while (1) {
+				int offset;
+
+				slot--;
+				offset = slot * 13;
+				fat16_towchar(unicode + offset, ds->name0_4, 5);
+				fat16_towchar(unicode + offset + 5, ds->name5_10, 6);
+				fat16_towchar(unicode + offset + 11, ds->name11_12, 2);
+
+				if (ds->id & 0x40) {
+					unicode[offset + 13] = 0;
+				}
+				if (fat_get_entry(inode,&cpos,&bh,&de,&i_pos)<0)
+					goto EODir;
+				if (slot == 0)
+					break;
+				ds = (struct msdos_dir_slot *) de;
+				if (ds->attr !=  ATTR_EXT)
+					goto parse_record;
+				if ((ds->id & ~0x40) != slot)
+					goto parse_long;
+				if (ds->alias_checksum != alias_checksum)
+					goto parse_long;
+			}
+			if (de->name[0] == (__s8) DELETED_FLAG)
+				continue;
+			if (de->attr ==  ATTR_EXT)
+				goto parse_long;
+			if (IS_FREE(de->name) || (de->attr & ATTR_VOLUME))
+				continue;
+			for (sum = 0, i = 0; i < 11; i++)
+				sum = (((sum&1)<<7)|((sum&0xfe)>>1)) + de->name[i];
+			if (sum != alias_checksum)
+				long_slots = 0;
+		}
+
+		for (i = 0; i < 8; i++) {
+			/* see namei.c, msdos_format_name */
+			if (de->name[i] == 0x05)
+				work[i] = 0xE5;
+			else
+				work[i] = de->name[i];
+		}
+		for (i = 0, j = 0, last_u = 0; i < 8;) {
+			if (!work[i]) break;
+			chl = fat_shortname2uni(nls_disk, &work[i], 8 - i,
+						&bufuname[j++], opt_shortname,
+						de->lcase & CASE_LOWER_BASE);
+			if (chl <= 1) {
+				if (work[i] != ' ')
+					last_u = j;
+			} else {
+				last_u = j;
+			}
+			i += chl;
+		}
+		j = last_u;
+		fat_short2uni(nls_disk, ".", 1, &bufuname[j++]);
+		for (i = 0; i < 3;) {
+			if (!de->ext[i]) break;
+			chl = fat_shortname2uni(nls_disk, &de->ext[i], 3 - i,
+						&bufuname[j++], opt_shortname,
+						de->lcase & CASE_LOWER_EXT);
+			if (chl <= 1) {
+				if (de->ext[i] != ' ')
+					last_u = j;
+			} else {
+				last_u = j;
+			}
+			i += chl;
+		}
+		if (!last_u)
+			continue;
+
+		bufuname[last_u] = 0x0000;
+		xlate_len = utf8
+			?utf8_wcstombs(bufname, bufuname, sizeof(bufname))
+			:uni16_to_x8(bufname, bufuname, uni_xlate, nls_io);
+		if (xlate_len == name_len)
+			if ((!anycase && !memcmp(name, bufname, xlate_len)) ||
+			    (anycase && !fat_strnicmp(nls_io, name, bufname,
+								xlate_len)))
+				goto Found;
+
+		if (long_slots) {
+			xlate_len = utf8
+				?utf8_wcstombs(bufname, unicode, sizeof(bufname))
+				:uni16_to_x8(bufname, unicode, uni_xlate, nls_io);
+			if (xlate_len != name_len)
+				continue;
+			if ((!anycase && !memcmp(name, bufname, xlate_len)) ||
+			    (anycase && !fat_strnicmp(nls_io, name, bufname,
+								xlate_len)))
+				goto Found;
+		}
+	}
+
+Found:
+	res = long_slots + 1;
+	*spos = cpos - sizeof(struct msdos_dir_entry);
+	*lpos = cpos - res*sizeof(struct msdos_dir_entry);
+EODir:
+	fat_brelse(sb, bh);
+	if (unicode) {
+		free_page((unsigned long) unicode);
+	}
+	return res;
+}
+
+static int fat_readdirx(struct inode *inode, struct file *filp, void *dirent,
+			filldir_t filldir, int shortnames, int both)
+{
+	struct super_block *sb = inode->i_sb;
+	struct buffer_head *bh;
+	struct msdos_dir_entry *de;
+	struct nls_table *nls_io = MSDOS_SB(sb)->nls_io;
+	struct nls_table *nls_disk = MSDOS_SB(sb)->nls_disk;
+	wchar_t bufuname[14];
+	unsigned char long_slots;
+	wchar_t *unicode = NULL;
+	char c, work[8], bufname[56], *ptname = bufname;
+	unsigned long lpos, dummy, *furrfu = &lpos;
+	int uni_xlate = MSDOS_SB(sb)->options.unicode_xlate;
+	int isvfat = MSDOS_SB(sb)->options.isvfat;
+	int utf8 = MSDOS_SB(sb)->options.utf8;
+	int nocase = MSDOS_SB(sb)->options.nocase;
+	unsigned short opt_shortname = MSDOS_SB(sb)->options.shortname;
+	unsigned long inum;
+	int chi, chl, i, i2, j, last, last_u, dotoffset = 0;
+	loff_t i_pos, cpos;
+
+	cpos = filp->f_pos;
+/* Fake . and .. for the root directory. */
+	if (inode->i_ino == MSDOS_ROOT_INO) {
+		while (cpos < 2) {
+			if (filldir(dirent, "..", cpos+1, cpos, MSDOS_ROOT_INO, DT_DIR) < 0)
+				return 0;
+			cpos++;
+			filp->f_pos++;
+		}
+		if (cpos == 2) {
+			dummy = 2;
+			furrfu = &dummy;
+			cpos = 0;
+		}
+	}
+	if (cpos & (sizeof(struct msdos_dir_entry)-1))
+		return -ENOENT;
+
+ 	bh = NULL;
+GetNew:
+	long_slots = 0;
+	if (fat_get_entry(inode,&cpos,&bh,&de,&i_pos) == -1)
+		goto EODir;
+	/* Check for long filename entry */
+	if (isvfat) {
+		if (de->name[0] == (__s8) DELETED_FLAG)
+			goto RecEnd;
+		if (de->attr != ATTR_EXT && (de->attr & ATTR_VOLUME))
+			goto RecEnd;
+		if (de->attr != ATTR_EXT && IS_FREE(de->name))
+			goto RecEnd;
+	} else {
+		if ((de->attr & ATTR_VOLUME) || IS_FREE(de->name))
+			goto RecEnd;
+	}
+
+	if (isvfat && de->attr == ATTR_EXT) {
+		struct msdos_dir_slot *ds;
+		unsigned char id;
+		unsigned char slot;
+		unsigned char slots;
+		unsigned char sum;
+		unsigned char alias_checksum;
+
+		if (!unicode) {
+			unicode = (wchar_t *)
+				__get_free_page(GFP_KERNEL);
+			if (!unicode) {
+				filp->f_pos = cpos;
+				fat_brelse(sb, bh);
+				return -ENOMEM;
+			}
+		}
+ParseLong:
+		slots = 0;
+		ds = (struct msdos_dir_slot *) de;
+		id = ds->id;
+		if (!(id & 0x40))
+			goto RecEnd;
+		slots = id & ~0x40;
+		if (slots > 20 || !slots)	/* ceil(256 * 2 / 26) */
+			goto RecEnd;
+		long_slots = slots;
+		alias_checksum = ds->alias_checksum;
+
+		slot = slots;
+		while (1) {
+			int offset;
+
+			slot--;
+			offset = slot * 13;
+			fat16_towchar(unicode + offset, ds->name0_4, 5);
+			fat16_towchar(unicode + offset + 5, ds->name5_10, 6);
+			fat16_towchar(unicode + offset + 11, ds->name11_12, 2);
+
+			if (ds->id & 0x40) {
+				unicode[offset + 13] = 0;
+			}
+			if (fat_get_entry(inode,&cpos,&bh,&de,&i_pos) == -1)
+				goto EODir;
+			if (slot == 0)
+				break;
+			ds = (struct msdos_dir_slot *) de;
+			if (ds->attr !=  ATTR_EXT)
+				goto RecEnd;	/* XXX */
+			if ((ds->id & ~0x40) != slot)
+				goto ParseLong;
+			if (ds->alias_checksum != alias_checksum)
+				goto ParseLong;
+		}
+		if (de->name[0] == (__s8) DELETED_FLAG)
+			goto RecEnd;
+		if (de->attr ==  ATTR_EXT)
+			goto ParseLong;
+		if (IS_FREE(de->name) || (de->attr & ATTR_VOLUME))
+			goto RecEnd;
+		for (sum = 0, i = 0; i < 11; i++)
+			sum = (((sum&1)<<7)|((sum&0xfe)>>1)) + de->name[i];
+		if (sum != alias_checksum)
+			long_slots = 0;
+	}
+
+	if ((de->attr & ATTR_HIDDEN) && MSDOS_SB(sb)->options.dotsOK) {
+		*ptname++ = '.';
+		dotoffset = 1;
+	}
+
+	for (i = 0; i < 8; i++) {
+		/* see namei.c, msdos_format_name */
+		if (de->name[i] == 0x05)
+			work[i] = 0xE5;
+		else
+			work[i] = de->name[i];
+	}
+	for (i = 0, j = 0, last = 0, last_u = 0; i < 8;) {
+		if (!(c = work[i])) break;
+		chl = fat_shortname2uni(nls_disk, &work[i], 8 - i,
+					&bufuname[j++], opt_shortname,
+					de->lcase & CASE_LOWER_BASE);
+		if (chl <= 1) {
+			ptname[i++] = (!nocase && c>='A' && c<='Z') ? c+32 : c;
+			if (c != ' ') {
+				last = i;
+				last_u = j;
+			}
+		} else {
+			last_u = j;
+			for (chi = 0; chi < chl && i < 8; chi++) {
+				ptname[i] = work[i];
+				i++; last = i;
+			}
+		}
+	}
+	i = last;
+	j = last_u;
+	fat_short2uni(nls_disk, ".", 1, &bufuname[j++]);
+	ptname[i++] = '.';
+	for (i2 = 0; i2 < 3;) {
+		if (!(c = de->ext[i2])) break;
+		chl = fat_shortname2uni(nls_disk, &de->ext[i2], 3 - i2,
+					&bufuname[j++], opt_shortname,
+					de->lcase & CASE_LOWER_EXT);
+		if (chl <= 1) {
+			i2++;
+			ptname[i++] = (!nocase && c>='A' && c<='Z') ? c+32 : c;
+			if (c != ' ') {
+				last = i;
+				last_u = j;
+			}
+		} else {
+			last_u = j;
+			for (chi = 0; chi < chl && i2 < 3; chi++) {
+				ptname[i++] = de->ext[i2++];
+				last = i;
+			}
+		}
+	}
+	if (!last)
+		goto RecEnd;
+
+	i = last + dotoffset;
+	j = last_u;
+
+	lpos = cpos - (long_slots+1)*sizeof(struct msdos_dir_entry);
+	if (!memcmp(de->name,MSDOS_DOT,11))
+		inum = inode->i_ino;
+	else if (!memcmp(de->name,MSDOS_DOTDOT,11)) {
+/*		inum = fat_parent_ino(inode,0); */
+		inum = filp->f_dentry->d_parent->d_inode->i_ino;
+	} else {
+		struct inode *tmp = fat_iget(sb, i_pos);
+		if (tmp) {
+			inum = tmp->i_ino;
+			iput(tmp);
+		} else
+			inum = iunique(sb, MSDOS_ROOT_INO);
+	}
+
+	if (isvfat) {
+		bufuname[j] = 0x0000;
+		i = utf8 ? utf8_wcstombs(bufname, bufuname, sizeof(bufname))
+			 : uni16_to_x8(bufname, bufuname, uni_xlate, nls_io);
+	}
+
+	if (!long_slots||shortnames) {
+		if (both)
+			bufname[i] = '\0';
+		if (filldir(dirent, bufname, i, *furrfu, inum,
+			    (de->attr & ATTR_DIR) ? DT_DIR : DT_REG) < 0)
+			goto FillFailed;
+	} else {
+		char longname[275];
+		int long_len = utf8
+			? utf8_wcstombs(longname, unicode, sizeof(longname))
+			: uni16_to_x8(longname, unicode, uni_xlate,
+				      nls_io);
+		if (both) {
+			memcpy(&longname[long_len+1], bufname, i);
+			long_len += i;
+		}
+		if (filldir(dirent, longname, long_len, *furrfu, inum,
+			    (de->attr & ATTR_DIR) ? DT_DIR : DT_REG) < 0)
+			goto FillFailed;
+	}
+
+RecEnd:
+	furrfu = &lpos;
+	filp->f_pos = cpos;
+	goto GetNew;
+EODir:
+	filp->f_pos = cpos;
+FillFailed:
+	if (bh)
+		fat_brelse(sb, bh);
+	if (unicode) {
+		free_page((unsigned long) unicode);
+	}
+	return 0;
+}
+
+int fat_readdir(struct file *filp, void *dirent, filldir_t filldir)
+{
+	struct inode *inode = filp->f_dentry->d_inode;
+	return fat_readdirx(inode, filp, dirent, filldir, 0, 0);
+}
+
+static int vfat_ioctl_fill(
+	void * buf,
+	const char * name,
+	int name_len,
+	loff_t offset,
+	ino_t ino,
+	unsigned int d_type)
+{
+	struct dirent *d1 = (struct dirent *)buf;
+	struct dirent *d2 = d1 + 1;
+	int len, slen;
+	int dotdir;
+
+	get_user(len, &d1->d_reclen);
+	if (len != 0) {
+		return -1;
+	}
+
+	if ((name_len == 1 && name[0] == '.') ||
+	    (name_len == 2 && name[0] == '.' && name[1] == '.')) {
+		dotdir = 1;
+		len = name_len;
+	} else {
+		dotdir = 0;
+		len = strlen(name);
+	}
+	if (len != name_len) {
+		copy_to_user(d2->d_name, name, len);
+		put_user(0, d2->d_name + len);
+		put_user(len, &d2->d_reclen);
+		put_user(ino, &d2->d_ino);
+		put_user(offset, &d2->d_off);
+		slen = name_len - len;
+		copy_to_user(d1->d_name, name+len+1, slen);
+		put_user(0, d1->d_name+slen);
+		put_user(slen, &d1->d_reclen);
+	} else {
+		put_user(0, d2->d_name);
+		put_user(0, &d2->d_reclen);
+		copy_to_user(d1->d_name, name, len);
+		put_user(0, d1->d_name+len);
+		put_user(len, &d1->d_reclen);
+	}
+	PRINTK(("FAT d1=%p d2=%p len=%d, name_len=%d\n",
+		d1, d2, len, name_len));
+
+	return 0;
+}
+
+int fat_dir_ioctl(struct inode * inode, struct file * filp,
+		  unsigned int cmd, unsigned long arg)
+{
+	int err;
+	/*
+	 * We want to provide an interface for Samba to be able
+	 * to get the short filename for a given long filename.
+	 * Samba should use this ioctl instead of readdir() to
+	 * get the information it needs.
+	 */
+	switch (cmd) {
+	case VFAT_IOCTL_READDIR_BOTH: {
+		struct dirent *d1 = (struct dirent *)arg;
+		err = verify_area(VERIFY_WRITE, d1, sizeof(struct dirent[2]));
+		if (err)
+			return err;
+		put_user(0, &d1->d_reclen);
+		return fat_readdirx(inode,filp,(void *)arg,
+				    vfat_ioctl_fill, 0, 1);
+	}
+	case VFAT_IOCTL_READDIR_SHORT: {
+		struct dirent *d1 = (struct dirent *)arg;
+		put_user(0, &d1->d_reclen);
+		err = verify_area(VERIFY_WRITE, d1, sizeof(struct dirent[2]));
+		if (err)
+			return err;
+		return fat_readdirx(inode,filp,(void *)arg,
+				    vfat_ioctl_fill, 1, 1);
+	}
+	default:
+		/* forward ioctl to CVF extension */
+	       if (MSDOS_SB(inode->i_sb)->cvf_format &&
+		   MSDOS_SB(inode->i_sb)->cvf_format->cvf_dir_ioctl)
+		       return MSDOS_SB(inode->i_sb)->cvf_format
+			       ->cvf_dir_ioctl(inode,filp,cmd,arg);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+/***** See if directory is empty */
+int fat_dir_empty(struct inode *dir)
+{
+	loff_t pos, i_pos;
+	struct buffer_head *bh;
+	struct msdos_dir_entry *de;
+	int result = 0;
+
+	pos = 0;
+	bh = NULL;
+	while (fat_get_entry(dir,&pos,&bh,&de,&i_pos) > -1) {
+		/* Ignore vfat longname entries */
+		if (de->attr == ATTR_EXT)
+			continue;
+		if (!IS_FREE(de->name) && 
+		    strncmp(de->name,MSDOS_DOT   , MSDOS_NAME) &&
+		    strncmp(de->name,MSDOS_DOTDOT, MSDOS_NAME)) {
+			result = -ENOTEMPTY;
+			break;
+		}
+	}
+	if (bh)
+		fat_brelse(dir->i_sb, bh);
+
+	return result;
+}
+
+/* This assumes that size of cluster is above the 32*slots */
+
+int fat_add_entries(struct inode *dir,int slots, struct buffer_head **bh,
+		  struct msdos_dir_entry **de, loff_t *i_pos)
+{
+	struct super_block *sb = dir->i_sb;
+	loff_t offset, curr;
+	int row;
+	struct buffer_head *new_bh;
+
+	offset = curr = 0;
+	*bh = NULL;
+	row = 0;
+	while (fat_get_entry(dir,&curr,bh,de,i_pos) > -1) {
+		if (IS_FREE((*de)->name)) {
+			if (++row == slots)
+				return offset;
+		} else {
+			row = 0;
+			offset = curr;
+		}
+	}
+	if ((dir->i_ino == MSDOS_ROOT_INO) && (MSDOS_SB(sb)->fat_bits != 32)) 
+		return -ENOSPC;
+	new_bh = fat_extend_dir(dir);
+	if (!new_bh)
+		return -ENOSPC;
+	fat_brelse(sb, new_bh);
+	do fat_get_entry(dir,&curr,bh,de,i_pos); while (++row<slots);
+	return offset;
+}
+
+int fat_new_dir(struct inode *dir, struct inode *parent, int is_vfat)
+{
+	struct super_block *sb = dir->i_sb;
+	struct buffer_head *bh;
+	struct msdos_dir_entry *de;
+	__u16 date, time;
+
+	if ((bh = fat_extend_dir(dir)) == NULL) return -ENOSPC;
+	/* zeroed out, so... */
+	fat_date_unix2dos(dir->i_mtime,&time,&date);
+	de = (struct msdos_dir_entry*)&bh->b_data[0];
+	memcpy(de[0].name,MSDOS_DOT,MSDOS_NAME);
+	memcpy(de[1].name,MSDOS_DOTDOT,MSDOS_NAME);
+	de[0].attr = de[1].attr = ATTR_DIR;
+	de[0].time = de[1].time = CT_LE_W(time);
+	de[0].date = de[1].date = CT_LE_W(date);
+	if (is_vfat) {	/* extra timestamps */
+		de[0].ctime = de[1].ctime = CT_LE_W(time);
+		de[0].adate = de[0].cdate =
+			de[1].adate = de[1].cdate = CT_LE_W(date);
+	}
+	de[0].start = CT_LE_W(MSDOS_I(dir)->i_logstart);
+	de[0].starthi = CT_LE_W(MSDOS_I(dir)->i_logstart>>16);
+	de[1].start = CT_LE_W(MSDOS_I(parent)->i_logstart);
+	de[1].starthi = CT_LE_W(MSDOS_I(parent)->i_logstart>>16);
+	fat_mark_buffer_dirty(sb, bh);
+	fat_brelse(sb, bh);
+	dir->i_atime = dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+	mark_inode_dirty(dir);
+
+	return 0;
+}
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
diff --git a/fs/fat/fatfs_syms.c b/fs/fat/fatfs_syms.c
new file mode 100644
index 00000000000000..343727a4228a44
--- /dev/null
+++ b/fs/fat/fatfs_syms.c
@@ -0,0 +1,48 @@
+/*
+ * linux/fs/fat/fatfs_syms.c
+ *
+ * Exported kernel symbols for the low-level FAT-based fs support.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+
+#include <linux/mm.h>
+#include <linux/msdos_fs.h>
+#include <linux/fat_cvf.h>
+
+EXPORT_SYMBOL(fat_new_dir);
+EXPORT_SYMBOL(fat_get_block);
+EXPORT_SYMBOL(fat_clear_inode);
+EXPORT_SYMBOL(fat_date_unix2dos);
+EXPORT_SYMBOL(fat_delete_inode);
+EXPORT_SYMBOL(fat__get_entry);
+EXPORT_SYMBOL(fat_mark_buffer_dirty);
+EXPORT_SYMBOL(fat_notify_change);
+EXPORT_SYMBOL(fat_put_super);
+EXPORT_SYMBOL(fat_attach);
+EXPORT_SYMBOL(fat_detach);
+EXPORT_SYMBOL(fat_build_inode);
+EXPORT_SYMBOL(fat_read_super);
+EXPORT_SYMBOL(fat_search_long);
+EXPORT_SYMBOL(fat_readdir);
+EXPORT_SYMBOL(fat_scan);
+EXPORT_SYMBOL(fat_statfs);
+EXPORT_SYMBOL(fat_write_inode);
+EXPORT_SYMBOL(register_cvf_format);
+EXPORT_SYMBOL(unregister_cvf_format);
+EXPORT_SYMBOL(fat_get_cluster);
+EXPORT_SYMBOL(fat_dir_ioctl);
+EXPORT_SYMBOL(fat_add_entries);
+EXPORT_SYMBOL(fat_dir_empty);
+EXPORT_SYMBOL(fat_truncate);
+EXPORT_SYMBOL(fat_brelse);
+
+static int __init init_fat_fs(void)
+{
+	fat_hash_init();
+	return 0;
+}
+
+module_init(init_fat_fs)
diff --git a/fs/fat/file.c b/fs/fat/file.c
new file mode 100644
index 00000000000000..ade1a71bf50ae7
--- /dev/null
+++ b/fs/fat/file.c
@@ -0,0 +1,136 @@
+/*
+ *  linux/fs/fat/file.c
+ *
+ *  Written 1992,1993 by Werner Almesberger
+ *
+ *  regular file handling primitives for fat-based filesystems
+ */
+
+#include <linux/sched.h>
+#include <linux/locks.h>
+#include <linux/fs.h>
+#include <linux/msdos_fs.h>
+#include <linux/errno.h>
+#include <linux/fcntl.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <linux/pagemap.h>
+#include <linux/fat_cvf.h>
+
+#include <asm/uaccess.h>
+#include <asm/system.h>
+
+#define PRINTK(x)
+#define Printk(x) printk x
+
+struct file_operations fat_file_operations = {
+	llseek:		generic_file_llseek,
+	read:		fat_file_read,
+	write:		fat_file_write,
+	mmap:		generic_file_mmap,
+	fsync:		file_fsync,
+};
+
+struct inode_operations fat_file_inode_operations = {
+	truncate:	fat_truncate,
+	setattr:	fat_notify_change,
+};
+
+ssize_t fat_file_read(
+	struct file *filp,
+	char *buf,
+	size_t count,
+	loff_t *ppos)
+{
+	struct inode *inode = filp->f_dentry->d_inode;
+	return MSDOS_SB(inode->i_sb)->cvf_format
+			->cvf_file_read(filp,buf,count,ppos);
+}
+
+
+int fat_get_block(struct inode *inode, long iblock, struct buffer_head *bh_result, int create)
+{
+	struct super_block *sb = inode->i_sb;
+	unsigned long phys;
+
+	phys = fat_bmap(inode, iblock);
+	if (phys) {
+		bh_result->b_dev = inode->i_dev;
+		bh_result->b_blocknr = phys;
+		bh_result->b_state |= (1UL << BH_Mapped);
+		return 0;
+	}
+	if (!create)
+		return 0;
+	if (iblock << sb->s_blocksize_bits != MSDOS_I(inode)->mmu_private) {
+		BUG();
+		return -EIO;
+	}
+	if (!(iblock % MSDOS_SB(inode->i_sb)->cluster_size)) {
+		if (fat_add_cluster(inode) < 0)
+			return -ENOSPC;
+	}
+	MSDOS_I(inode)->mmu_private += sb->s_blocksize;
+	phys = fat_bmap(inode, iblock);
+	if (!phys)
+		BUG();
+	bh_result->b_dev = inode->i_dev;
+	bh_result->b_blocknr = phys;
+	bh_result->b_state |= (1UL << BH_Mapped);
+	bh_result->b_state |= (1UL << BH_New);
+	return 0;
+}
+
+ssize_t fat_file_write(
+	struct file *filp,
+	const char *buf,
+	size_t count,
+	loff_t *ppos)
+{
+	struct inode *inode = filp->f_dentry->d_inode;
+	struct super_block *sb = inode->i_sb;
+	return MSDOS_SB(sb)->cvf_format
+			->cvf_file_write(filp,buf,count,ppos);
+}
+
+ssize_t default_fat_file_write(
+	struct file *filp,
+	const char *buf,
+	size_t count,
+	loff_t *ppos)
+{
+	struct inode *inode = filp->f_dentry->d_inode;
+	int retval;
+
+	retval = generic_file_write(filp, buf, count, ppos);
+	if (retval > 0) {
+		inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+		MSDOS_I(inode)->i_attrs |= ATTR_ARCH;
+		mark_inode_dirty(inode);
+	}
+	return retval;
+}
+
+void fat_truncate(struct inode *inode)
+{
+	struct msdos_sb_info *sbi = MSDOS_SB(inode->i_sb);
+	int cluster;
+
+	/* Why no return value?  Surely the disk could fail... */
+	if (IS_RDONLY (inode))
+		return /* -EPERM */;
+	if (IS_IMMUTABLE(inode))
+		return /* -EPERM */;
+	cluster = 1 << sbi->cluster_bits;
+	/* 
+	 * This protects against truncating a file bigger than it was then
+	 * trying to write into the hole.
+	 */
+	if (MSDOS_I(inode)->mmu_private > inode->i_size)
+		MSDOS_I(inode)->mmu_private = inode->i_size;
+
+	fat_free(inode, (inode->i_size + (cluster - 1)) >> sbi->cluster_bits);
+	MSDOS_I(inode)->i_attrs |= ATTR_ARCH;
+	inode->i_ctime = inode->i_mtime = CURRENT_TIME;
+	mark_inode_dirty(inode);
+}
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
new file mode 100644
index 00000000000000..f3b6639ba8b94d
--- /dev/null
+++ b/fs/fat/inode.c
@@ -0,0 +1,1074 @@
+/*
+ *  linux/fs/fat/inode.c
+ *
+ *  Written 1992,1993 by Werner Almesberger
+ *  VFAT extensions by Gordon Chaffee, merged with msdos fs by Henrik Storner
+ *  Rewritten for the constant inumbers support by Al Viro
+ *
+ *  Fixes:
+ *
+ *  	Max Cohan: Fixed invalid FSINFO offset when info_sector is 0
+ */
+
+#include <linux/module.h>
+#include <linux/msdos_fs.h>
+#include <linux/nls.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/bitops.h>
+#include <linux/major.h>
+#include <linux/blkdev.h>
+#include <linux/fs.h>
+#include <linux/stat.h>
+#include <linux/locks.h>
+#include <linux/fat_cvf.h>
+#include <linux/slab.h>
+#include <linux/smp_lock.h>
+
+#include <asm/uaccess.h>
+#include <asm/unaligned.h>
+
+extern struct cvf_format default_cvf;
+
+/* #define FAT_PARANOIA 1 */
+#define DEBUG_LEVEL 0
+#ifdef FAT_DEBUG
+#  define PRINTK(x) printk x
+#else
+#  define PRINTK(x)
+#endif
+#if (DEBUG_LEVEL >= 1)
+#  define PRINTK1(x) printk x
+#else
+#  define PRINTK1(x)
+#endif
+
+/*
+ * New FAT inode stuff. We do the following:
+ *	a) i_ino is constant and has nothing with on-disk location.
+ *	b) FAT manages its own cache of directory entries.
+ *	c) *This* cache is indexed by on-disk location.
+ *	d) inode has an associated directory entry, all right, but
+ *		it may be unhashed.
+ *	e) currently entries are stored within struct inode. That should
+ *		change.
+ *	f) we deal with races in the following way:
+ *		1. readdir() and lookup() do FAT-dir-cache lookup.
+ *		2. rename() unhashes the F-d-c entry and rehashes it in
+ *			a new place.
+ *		3. unlink() and rmdir() unhash F-d-c entry.
+ *		4. fat_write_inode() checks whether the thing is unhashed.
+ *			If it is we silently return. If it isn't we do bread(),
+ *			check if the location is still valid and retry if it
+ *			isn't. Otherwise we do changes.
+ *		5. Spinlock is used to protect hash/unhash/location check/lookup
+ *		6. fat_clear_inode() unhashes the F-d-c entry.
+ *		7. lookup() and readdir() do igrab() if they find a F-d-c entry
+ *			and consider negative result as cache miss.
+ */
+
+#define FAT_HASH_BITS	8
+#define FAT_HASH_SIZE	(1UL << FAT_HASH_BITS)
+#define FAT_HASH_MASK	(FAT_HASH_SIZE-1)
+static struct list_head fat_inode_hashtable[FAT_HASH_SIZE];
+spinlock_t fat_inode_lock = SPIN_LOCK_UNLOCKED;
+
+void fat_hash_init(void)
+{
+	int i;
+	for(i = 0; i < FAT_HASH_SIZE; i++) {
+		INIT_LIST_HEAD(&fat_inode_hashtable[i]);
+	}
+}
+
+static inline unsigned long fat_hash(struct super_block *sb, loff_t i_pos)
+{
+	unsigned long tmp = (unsigned long)i_pos | (unsigned long) sb;
+	tmp = tmp + (tmp >> FAT_HASH_BITS) + (tmp >> FAT_HASH_BITS * 2);
+	return tmp & FAT_HASH_MASK;
+}
+
+void fat_attach(struct inode *inode, loff_t i_pos)
+{
+	spin_lock(&fat_inode_lock);
+	MSDOS_I(inode)->i_pos = i_pos;
+	list_add(&MSDOS_I(inode)->i_fat_hash,
+		fat_inode_hashtable + fat_hash(inode->i_sb, i_pos));
+	spin_unlock(&fat_inode_lock);
+}
+
+void fat_detach(struct inode *inode)
+{
+	spin_lock(&fat_inode_lock);
+	MSDOS_I(inode)->i_pos = 0;
+	list_del(&MSDOS_I(inode)->i_fat_hash);
+	INIT_LIST_HEAD(&MSDOS_I(inode)->i_fat_hash);
+	spin_unlock(&fat_inode_lock);
+}
+
+struct inode *fat_iget(struct super_block *sb, loff_t i_pos)
+{
+	struct list_head *p = fat_inode_hashtable + fat_hash(sb, i_pos);
+	struct list_head *walk;
+	struct msdos_inode_info *i;
+	struct inode *inode = NULL;
+
+	spin_lock(&fat_inode_lock);
+	list_for_each(walk, p) {
+		i = list_entry(walk, struct msdos_inode_info, i_fat_hash);
+		if (i->i_fat_inode->i_sb != sb)
+			continue;
+		if (i->i_pos != i_pos)
+			continue;
+		inode = igrab(i->i_fat_inode);
+		if (inode)
+			break;
+	}
+	spin_unlock(&fat_inode_lock);
+	return inode;
+}
+
+static void fat_fill_inode(struct inode *inode, struct msdos_dir_entry *de);
+
+struct inode *fat_build_inode(struct super_block *sb,
+			struct msdos_dir_entry *de, loff_t i_pos, int *res)
+{
+	struct inode *inode;
+	*res = 0;
+	inode = fat_iget(sb, i_pos);
+	if (inode)
+		goto out;
+	inode = new_inode(sb);
+	*res = -ENOMEM;
+	if (!inode)
+		goto out;
+	*res = 0;
+	inode->i_ino = iunique(sb, MSDOS_ROOT_INO);
+	fat_fill_inode(inode, de);
+	fat_attach(inode, i_pos);
+	insert_inode_hash(inode);
+out:
+	return inode;
+}
+
+void fat_delete_inode(struct inode *inode)
+{
+	if (!is_bad_inode(inode)) {
+		lock_kernel();
+		inode->i_size = 0;
+		fat_truncate(inode);
+		unlock_kernel();
+	}
+	clear_inode(inode);
+}
+
+void fat_clear_inode(struct inode *inode)
+{
+	if (is_bad_inode(inode))
+		return;
+	lock_kernel();
+	spin_lock(&fat_inode_lock);
+	fat_cache_inval_inode(inode);
+	list_del(&MSDOS_I(inode)->i_fat_hash);
+	spin_unlock(&fat_inode_lock);
+	unlock_kernel();
+}
+
+void fat_put_super(struct super_block *sb)
+{
+	if (MSDOS_SB(sb)->cvf_format->cvf_version) {
+		dec_cvf_format_use_count_by_version(MSDOS_SB(sb)->cvf_format->cvf_version);
+		MSDOS_SB(sb)->cvf_format->unmount_cvf(sb);
+	}
+	if (MSDOS_SB(sb)->fat_bits == 32) {
+		fat_clusters_flush(sb);
+	}
+	fat_cache_inval_dev(sb->s_dev);
+	set_blocksize (sb->s_dev,BLOCK_SIZE);
+	if (MSDOS_SB(sb)->nls_disk) {
+		unload_nls(MSDOS_SB(sb)->nls_disk);
+		MSDOS_SB(sb)->nls_disk = NULL;
+		MSDOS_SB(sb)->options.codepage = 0;
+	}
+	if (MSDOS_SB(sb)->nls_io) {
+		unload_nls(MSDOS_SB(sb)->nls_io);
+		MSDOS_SB(sb)->nls_io = NULL;
+	}
+	/*
+	 * Note: the iocharset option might have been specified
+	 * without enabling nls_io, so check for it here.
+	 */
+	if (MSDOS_SB(sb)->options.iocharset) {
+		kfree(MSDOS_SB(sb)->options.iocharset);
+		MSDOS_SB(sb)->options.iocharset = NULL;
+	}
+}
+
+
+static int parse_options(char *options,int *fat, int *debug,
+			 struct fat_mount_options *opts,
+			 char *cvf_format, char *cvf_options)
+{
+	char *this_char,*value,save,*savep;
+	char *p;
+	int ret = 1, len;
+
+	opts->name_check = 'n';
+	opts->conversion = 'b';
+	opts->fs_uid = current->uid;
+	opts->fs_gid = current->gid;
+	opts->fs_umask = current->fs->umask;
+	opts->quiet = opts->sys_immutable = opts->dotsOK = opts->showexec = 0;
+	opts->codepage = 0;
+	opts->nocase = 0;
+	opts->shortname = 0;
+	opts->utf8 = 0;
+	opts->iocharset = NULL;
+	*debug = *fat = 0;
+
+	if (!options)
+		goto out;
+	save = 0;
+	savep = NULL;
+	for (this_char = strtok(options,","); this_char;
+	     this_char = strtok(NULL,",")) {
+		if ((value = strchr(this_char,'=')) != NULL) {
+			save = *value;
+			savep = value;
+			*value++ = 0;
+		}
+		if (!strcmp(this_char,"check") && value) {
+			if (value[0] && !value[1] && strchr("rns",*value))
+				opts->name_check = *value;
+			else if (!strcmp(value,"relaxed"))
+				opts->name_check = 'r';
+			else if (!strcmp(value,"normal"))
+				opts->name_check = 'n';
+			else if (!strcmp(value,"strict"))
+				opts->name_check = 's';
+			else ret = 0;
+		}
+		else if (!strcmp(this_char,"conv") && value) {
+			if (value[0] && !value[1] && strchr("bta",*value))
+				opts->conversion = *value;
+			else if (!strcmp(value,"binary"))
+				opts->conversion = 'b';
+			else if (!strcmp(value,"text"))
+				opts->conversion = 't';
+			else if (!strcmp(value,"auto"))
+				opts->conversion = 'a';
+			else ret = 0;
+		}
+		else if (!strcmp(this_char,"dots")) {
+			opts->dotsOK = 1;
+		}
+		else if (!strcmp(this_char,"nocase")) {
+			opts->nocase = 1;
+		}
+		else if (!strcmp(this_char,"nodots")) {
+			opts->dotsOK = 0;
+		}
+		else if (!strcmp(this_char,"showexec")) {
+			opts->showexec = 1;
+		}
+		else if (!strcmp(this_char,"dotsOK") && value) {
+			if (!strcmp(value,"yes")) opts->dotsOK = 1;
+			else if (!strcmp(value,"no")) opts->dotsOK = 0;
+			else ret = 0;
+		}
+		else if (!strcmp(this_char,"uid")) {
+			if (!value || !*value) ret = 0;
+			else {
+				opts->fs_uid = simple_strtoul(value,&value,0);
+				if (*value) ret = 0;
+			}
+		}
+		else if (!strcmp(this_char,"gid")) {
+			if (!value || !*value) ret= 0;
+			else {
+				opts->fs_gid = simple_strtoul(value,&value,0);
+				if (*value) ret = 0;
+			}
+		}
+		else if (!strcmp(this_char,"umask")) {
+			if (!value || !*value) ret = 0;
+			else {
+				opts->fs_umask = simple_strtoul(value,&value,8);
+				if (*value) ret = 0;
+			}
+		}
+		else if (!strcmp(this_char,"debug")) {
+			if (value) ret = 0;
+			else *debug = 1;
+		}
+		else if (!strcmp(this_char,"fat")) {
+			if (!value || !*value) ret = 0;
+			else {
+				*fat = simple_strtoul(value,&value,0);
+				if (*value || (*fat != 12 && *fat != 16 &&
+					       *fat != 32)) 
+					ret = 0;
+			}
+		}
+		else if (!strcmp(this_char,"quiet")) {
+			if (value) ret = 0;
+			else opts->quiet = 1;
+		}
+		else if (!strcmp(this_char,"blocksize")) {
+			printk("FAT: blocksize option is obsolete, "
+			       "not supported now\n");
+		}
+		else if (!strcmp(this_char,"sys_immutable")) {
+			if (value) ret = 0;
+			else opts->sys_immutable = 1;
+		}
+		else if (!strcmp(this_char,"codepage") && value) {
+			opts->codepage = simple_strtoul(value,&value,0);
+			if (*value) ret = 0;
+			else printk ("MSDOS FS: Using codepage %d\n",
+					opts->codepage);
+		}
+		else if (!strcmp(this_char,"iocharset") && value) {
+			p = value;
+			while (*value && *value != ',')
+				value++;
+			len = value - p;
+			if (len) {
+				char *buffer;
+
+				if (opts->iocharset != NULL) {
+					kfree(opts->iocharset);
+					opts->iocharset = NULL;
+				}
+				buffer = kmalloc(len + 1, GFP_KERNEL);
+				if (buffer != NULL) {
+					opts->iocharset = buffer;
+					memcpy(buffer, p, len);
+					buffer[len] = 0;
+					printk("MSDOS FS: IO charset %s\n", buffer);
+				} else
+					ret = 0;
+			}
+		}
+		else if (!strcmp(this_char,"cvf_format")) {
+			if (!value)
+				return 0;
+			strncpy(cvf_format,value,20);
+		}
+		else if (!strcmp(this_char,"cvf_options")) {
+			if (!value)
+				return 0;
+			strncpy(cvf_options,value,100);
+		}
+
+		if (this_char != options) *(this_char-1) = ',';
+		if (value) *savep = save;
+		if (ret == 0)
+			break;
+	}
+out:
+	return ret;
+}
+
+static void fat_read_root(struct inode *inode)
+{
+	struct super_block *sb = inode->i_sb;
+	struct msdos_sb_info *sbi = MSDOS_SB(sb);
+	int nr;
+
+	INIT_LIST_HEAD(&MSDOS_I(inode)->i_fat_hash);
+	MSDOS_I(inode)->i_pos = 0;
+	MSDOS_I(inode)->i_fat_inode = inode;
+	inode->i_uid = sbi->options.fs_uid;
+	inode->i_gid = sbi->options.fs_gid;
+	inode->i_version = ++event;
+	inode->i_generation = 0;
+	inode->i_mode = (S_IRWXUGO & ~sbi->options.fs_umask) | S_IFDIR;
+	inode->i_op = sbi->dir_ops;
+	inode->i_fop = &fat_dir_operations;
+	if (sbi->fat_bits == 32) {
+		MSDOS_I(inode)->i_start = sbi->root_cluster;
+		if ((nr = MSDOS_I(inode)->i_start) != 0) {
+			while (nr != -1) {
+				inode->i_size += 1 << sbi->cluster_bits;
+				if (!(nr = fat_access(sb, nr, -1))) {
+					printk("Directory %ld: bad FAT\n",
+					       inode->i_ino);
+					break;
+				}
+			}
+		}
+	} else {
+		MSDOS_I(inode)->i_start = 0;
+		inode->i_size = sbi->dir_entries * sizeof(struct msdos_dir_entry);
+	}
+	inode->i_blksize = 1 << sbi->cluster_bits;
+	inode->i_blocks = ((inode->i_size + inode->i_blksize - 1)
+			   & ~(inode->i_blksize - 1)) >> 9;
+	MSDOS_I(inode)->i_logstart = 0;
+	MSDOS_I(inode)->mmu_private = inode->i_size;
+
+	MSDOS_I(inode)->i_attrs = 0;
+	inode->i_mtime = inode->i_atime = inode->i_ctime = 0;
+	MSDOS_I(inode)->i_ctime_ms = 0;
+	inode->i_nlink = fat_subdirs(inode)+2;
+}
+
+/*
+ * a FAT file handle with fhtype 3 is
+ *  0/  i_ino - for fast, reliable lookup if still in the cache
+ *  1/  i_generation - to see if i_ino is still valid
+ *          bit 0 == 0 iff directory
+ *  2/  i_pos(8-39) - if ino has changed, but still in cache
+ *  3/  i_pos(4-7)|i_logstart - to semi-verify inode found at i_pos
+ *  4/  i_pos(0-3)|parent->i_logstart - maybe used to hunt for the file on disc
+ *
+ * Hack for NFSv2: Maximum FAT entry number is 28bits and maximum
+ * i_pos is 40bits (blocknr(32) + dir offset(8)), so two 4bits
+ * of i_logstart is used to store the directory entry offset.
+ */
+struct dentry *fat_fh_to_dentry(struct super_block *sb, __u32 *fh,
+				int len, int fhtype, int parent)
+{
+	struct inode *inode = NULL;
+	struct list_head *lp;
+	struct dentry *result;
+
+	if (fhtype != 3)
+		return ERR_PTR(-ESTALE);
+	if (len < 5)
+		return ERR_PTR(-ESTALE);
+	/* We cannot find the parent,
+	   It better just *be* there */
+	if (parent)
+		return ERR_PTR(-ESTALE);
+
+	inode = iget(sb, fh[0]);
+	if (!inode || is_bad_inode(inode) || inode->i_generation != fh[1]) {
+		if (inode)
+			iput(inode);
+		inode = NULL;
+	}
+	if (!inode) {
+		loff_t i_pos;
+		int i_logstart = fh[3] & 0x0fffffff;
+
+		i_pos = (loff_t)fh[2] << 8;
+		i_pos |= ((fh[3] >> 24) & 0xf0) | (fh[4] >> 28);
+
+		/* try 2 - see if i_pos is in F-d-c
+		 * require i_logstart to be the same
+		 * Will fail if you truncate and then re-write
+		 */
+
+		inode = fat_iget(sb, i_pos);
+		if (inode && MSDOS_I(inode)->i_logstart != i_logstart) {
+			iput(inode);
+			inode = NULL;
+		}
+	}
+	if (!inode) {
+		/* For now, do nothing
+		 * What we could do is:
+		 * follow the file starting at fh[4], and record
+		 * the ".." entry, and the name of the fh[2] entry.
+		 * The follow the ".." file finding the next step up.
+		 * This way we build a path to the root of
+		 * the tree. If this works, we lookup the path and so
+		 * get this inode into the cache.
+		 * Finally try the fat_iget lookup again
+		 * If that fails, then weare totally out of luck
+		 * But all that is for another day
+		 */
+	}
+	if (!inode)
+		return ERR_PTR(-ESTALE);
+
+	
+	/* now to find a dentry.
+	 * If possible, get a well-connected one
+	 *
+	 * Given the way that we found the inode, it *MUST* be
+	 * well-connected, but it is easiest to just copy the
+	 * code.
+	 */
+	spin_lock(&dcache_lock);
+	for (lp = inode->i_dentry.next; lp != &inode->i_dentry ; lp=lp->next) {
+		result = list_entry(lp,struct dentry, d_alias);
+		if (! (result->d_flags & DCACHE_NFSD_DISCONNECTED)) {
+			dget_locked(result);
+			result->d_vfs_flags |= DCACHE_REFERENCED;
+			spin_unlock(&dcache_lock);
+			iput(inode);
+			return result;
+		}
+	}
+	spin_unlock(&dcache_lock);
+	result = d_alloc_root(inode);
+	if (result == NULL) {
+		iput(inode);
+		return ERR_PTR(-ENOMEM);
+	}
+	result->d_op = sb->s_root->d_op;
+	result->d_flags |= DCACHE_NFSD_DISCONNECTED;
+	return result;
+}
+
+int fat_dentry_to_fh(struct dentry *de, __u32 *fh, int *lenp, int needparent)
+{
+	int len = *lenp;
+	struct inode *inode =  de->d_inode;
+	u32 ipos_h, ipos_m, ipos_l;
+	
+	if (len < 5)
+		return 255; /* no room */
+
+	ipos_h = MSDOS_I(inode)->i_pos >> 8;
+	ipos_m = (MSDOS_I(inode)->i_pos & 0xf0) << 24;
+	ipos_l = (MSDOS_I(inode)->i_pos & 0x0f) << 28;
+	*lenp = 5;
+	fh[0] = inode->i_ino;
+	fh[1] = inode->i_generation;
+	fh[2] = ipos_h;
+	fh[3] = ipos_m | MSDOS_I(inode)->i_logstart;
+	fh[4] = ipos_l | MSDOS_I(de->d_parent->d_inode)->i_logstart;
+	return 3;
+}
+
+static struct super_operations fat_sops = { 
+	write_inode:	fat_write_inode,
+	delete_inode:	fat_delete_inode,
+	put_super:	fat_put_super,
+	statfs:		fat_statfs,
+	clear_inode:	fat_clear_inode,
+
+	read_inode:	make_bad_inode,
+	fh_to_dentry:	fat_fh_to_dentry,
+	dentry_to_fh:	fat_dentry_to_fh,
+};
+
+/*
+ * Read the super block of an MS-DOS FS.
+ *
+ * Note that this may be called from vfat_read_super
+ * with some fields already initialized.
+ */
+struct super_block *
+fat_read_super(struct super_block *sb, void *data, int silent,
+		struct inode_operations *fs_dir_inode_ops)
+{
+	struct inode *root_inode;
+	struct buffer_head *bh;
+	struct fat_boot_sector *b;
+	struct msdos_sb_info *sbi = MSDOS_SB(sb);
+	char *p;
+	int logical_sector_size, hard_blksize, fat_clusters = 0;
+	unsigned int total_sectors, rootdir_sectors;
+	int fat32, debug, error, fat, cp;
+	struct fat_mount_options opts;
+	char buf[50];
+	int i;
+	char cvf_format[21];
+	char cvf_options[101];
+
+	cvf_format[0] = '\0';
+	cvf_options[0] = '\0';
+	sbi->cvf_format = NULL;
+	sbi->private_data = NULL;
+
+	sbi->dir_ops = fs_dir_inode_ops;
+
+	sb->s_maxbytes = MAX_NON_LFS;
+	sb->s_op = &fat_sops;
+
+	hard_blksize = get_hardsect_size(sb->s_dev);
+	if (!hard_blksize)
+		hard_blksize = 512;
+
+	opts.isvfat = sbi->options.isvfat;
+	if (!parse_options((char *) data, &fat, &debug, &opts,
+			   cvf_format, cvf_options))
+		goto out_fail;
+	/* N.B. we should parse directly into the sb structure */
+	memcpy(&(sbi->options), &opts, sizeof(struct fat_mount_options));
+
+	fat_cache_init();
+
+	sb->s_blocksize = hard_blksize;
+	set_blocksize(sb->s_dev, hard_blksize);
+	bh = sb_bread(sb, 0);
+	if (bh == NULL) {
+		printk("FAT: unable to read boot sector\n");
+		goto out_fail;
+	}
+
+/*
+ * The DOS3 partition size limit is *not* 32M as many people think.  
+ * Instead, it is 64K sectors (with the usual sector size being
+ * 512 bytes, leading to a 32M limit).
+ * 
+ * DOS 3 partition managers got around this problem by faking a 
+ * larger sector size, ie treating multiple physical sectors as 
+ * a single logical sector.
+ * 
+ * We can accommodate this scheme by adjusting our cluster size,
+ * fat_start, and data_start by an appropriate value.
+ *
+ * (by Drew Eckhardt)
+ */
+
+
+	b = (struct fat_boot_sector *) bh->b_data;
+	logical_sector_size =
+		CF_LE_W(get_unaligned((unsigned short *) &b->sector_size));
+	if (!logical_sector_size
+	    || (logical_sector_size & (logical_sector_size - 1))) {
+		printk("FAT: bogus logical sector size %d\n",
+		       logical_sector_size);
+		brelse(bh);
+		goto out_invalid;
+	}
+
+	sbi->cluster_size = b->cluster_size;
+	if (!sbi->cluster_size
+	    || (sbi->cluster_size & (sbi->cluster_size - 1))) {
+		printk("FAT: bogus cluster size %d\n", sbi->cluster_size);
+		brelse(bh);
+		goto out_invalid;
+	}
+
+	if (logical_sector_size < hard_blksize) {
+		printk("FAT: logical sector size too small for device"
+		       " (logical sector size = %d)\n", logical_sector_size);
+		brelse(bh);
+		goto out_invalid;
+	}
+
+	sbi->cluster_bits = ffs(logical_sector_size * sbi->cluster_size) - 1;
+	sbi->fats = b->fats;
+	sbi->fat_start = CF_LE_W(b->reserved);
+	sbi->prev_free = 0;
+	if (!b->fat_length && b->fat32_length) {
+		struct fat_boot_fsinfo *fsinfo;
+		struct buffer_head *fsinfo_bh;
+		int fsinfo_block, fsinfo_offset;
+
+		/* Must be FAT32 */
+		fat32 = 1;
+		sbi->fat_length = CF_LE_L(b->fat32_length);
+		sbi->root_cluster = CF_LE_L(b->root_cluster);
+
+		sbi->fsinfo_sector = CF_LE_W(b->info_sector);
+		/* MC - if info_sector is 0, don't multiply by 0 */
+		if (sbi->fsinfo_sector == 0)
+			sbi->fsinfo_sector = 1;
+
+		fsinfo_block =
+			(sbi->fsinfo_sector * logical_sector_size) / hard_blksize;
+		fsinfo_offset =
+			(sbi->fsinfo_sector * logical_sector_size) % hard_blksize;
+		fsinfo_bh = bh;
+		if (fsinfo_block != 0) {
+			fsinfo_bh = sb_bread(sb, fsinfo_block);
+			if (fsinfo_bh == NULL) {
+				printk("FAT: bread failed, FSINFO block"
+				       " (blocknr = %d)\n", fsinfo_block);
+				brelse(bh);
+				goto out_invalid;
+			}
+		}
+		fsinfo = (struct fat_boot_fsinfo *)&fsinfo_bh->b_data[fsinfo_offset];
+		if (!IS_FSINFO(fsinfo)) {
+			printk("FAT: Did not find valid FSINFO signature.\n"
+			       "Found signature1 0x%x signature2 0x%x sector=%ld.\n",
+			       CF_LE_L(fsinfo->signature1),
+			       CF_LE_L(fsinfo->signature2),
+			       sbi->fsinfo_sector);
+		} else {
+			sbi->free_clusters = CF_LE_L(fsinfo->free_clusters);
+			sbi->prev_free = CF_LE_L(fsinfo->next_cluster);
+		}
+
+		if (fsinfo_block != 0)
+			brelse(fsinfo_bh);
+	} else {
+		fat32 = 0;
+		sbi->fat_length = CF_LE_W(b->fat_length);
+		sbi->root_cluster = 0;
+		sbi->free_clusters = -1; /* Don't know yet */
+	}
+
+	sbi->dir_per_block = logical_sector_size / sizeof(struct msdos_dir_entry);
+	sbi->dir_per_block_bits = ffs(sbi->dir_per_block) - 1;
+
+	sbi->dir_start = sbi->fat_start + sbi->fats * sbi->fat_length;
+	sbi->dir_entries =
+		CF_LE_W(get_unaligned((unsigned short *)&b->dir_entries));
+	rootdir_sectors = sbi->dir_entries
+		* sizeof(struct msdos_dir_entry) / logical_sector_size;
+	sbi->data_start = sbi->dir_start + rootdir_sectors;
+	total_sectors = CF_LE_W(get_unaligned((unsigned short *)&b->sectors));
+	if (total_sectors == 0)
+		total_sectors = CF_LE_L(b->total_sect);
+	sbi->clusters = (total_sectors - sbi->data_start) / sbi->cluster_size;
+
+	error = 0;
+	if (!error) {
+		sbi->fat_bits = fat32 ? 32 :
+			(fat ? fat :
+			 (sbi->clusters > MSDOS_FAT12 ? 16 : 12));
+		fat_clusters =
+			sbi->fat_length * logical_sector_size * 8 / sbi->fat_bits;
+		error = !sbi->fats || (sbi->dir_entries & (sbi->dir_per_block - 1))
+			|| sbi->clusters + 2 > fat_clusters + MSDOS_MAX_EXTRA
+			|| logical_sector_size < 512
+			|| PAGE_CACHE_SIZE < logical_sector_size
+			|| !b->secs_track || !b->heads;
+	}
+	brelse(bh);
+
+	if (error)
+		goto out_invalid;
+
+	sb->s_blocksize = logical_sector_size;
+	sb->s_blocksize_bits = ffs(logical_sector_size) - 1;
+	set_blocksize(sb->s_dev, sb->s_blocksize);
+	sbi->cvf_format = &default_cvf;
+	if (!strcmp(cvf_format, "none"))
+		i = -1;
+	else
+		i = detect_cvf(sb,cvf_format);
+	if (i >= 0)
+		error = cvf_formats[i]->mount_cvf(sb, cvf_options);
+	if (error || debug) {
+		/* The MSDOS_CAN_BMAP is obsolete, but left just to remember */
+		printk("[MS-DOS FS Rel. 12,FAT %d,check=%c,conv=%c,"
+		       "uid=%d,gid=%d,umask=%03o%s]\n",
+		       sbi->fat_bits,opts.name_check,
+		       opts.conversion,opts.fs_uid,opts.fs_gid,opts.fs_umask,
+		       MSDOS_CAN_BMAP(sbi) ? ",bmap" : "");
+		printk("[me=0x%x,cs=%d,#f=%d,fs=%d,fl=%ld,ds=%ld,de=%d,data=%ld,"
+		       "se=%u,ts=%u,ls=%d,rc=%ld,fc=%u]\n",
+		       b->media, sbi->cluster_size, sbi->fats,
+		       sbi->fat_start, sbi->fat_length, sbi->dir_start,
+		       sbi->dir_entries, sbi->data_start,
+		       CF_LE_W(get_unaligned((unsigned short *)&b->sectors)),
+		       CF_LE_L(b->total_sect), logical_sector_size,
+		       sbi->root_cluster, sbi->free_clusters);
+		printk ("hard sector size = %d\n", hard_blksize);
+	}
+	if (i < 0)
+		if (sbi->clusters + 2 > fat_clusters)
+			sbi->clusters = fat_clusters - 2;
+	if (error)
+		goto out_invalid;
+
+	sb->s_magic = MSDOS_SUPER_MAGIC;
+	/* set up enough so that it can read an inode */
+	init_MUTEX(&sbi->fat_lock);
+
+	cp = opts.codepage ? opts.codepage : 437;
+	sprintf(buf, "cp%d", cp);
+	sbi->nls_disk = load_nls(buf);
+	if (! sbi->nls_disk) {
+		/* Fail only if explicit charset specified */
+		if (opts.codepage != 0)
+			goto out_fail;
+		sbi->options.codepage = 0; /* already 0?? */
+		sbi->nls_disk = load_nls_default();
+	}
+
+	sbi->nls_io = NULL;
+	if (sbi->options.isvfat && !opts.utf8) {
+		p = opts.iocharset ? opts.iocharset : CONFIG_NLS_DEFAULT;
+		sbi->nls_io = load_nls(p);
+		if (! sbi->nls_io)
+			/* Fail only if explicit charset specified */
+			if (opts.iocharset)
+				goto out_unload_nls;
+	}
+	if (! sbi->nls_io)
+		sbi->nls_io = load_nls_default();
+
+	root_inode = new_inode(sb);
+	if (!root_inode)
+		goto out_unload_nls;
+	root_inode->i_ino = MSDOS_ROOT_INO;
+	fat_read_root(root_inode);
+	insert_inode_hash(root_inode);
+	sb->s_root = d_alloc_root(root_inode);
+	if (!sb->s_root)
+		goto out_no_root;
+	if(i >= 0) {
+		sbi->cvf_format = cvf_formats[i];
+		++cvf_format_use_count[i];
+	}
+	return sb;
+
+out_no_root:
+	printk("FAT: get root inode failed\n");
+	iput(root_inode);
+	unload_nls(sbi->nls_io);
+out_unload_nls:
+	unload_nls(sbi->nls_disk);
+	goto out_fail;
+out_invalid:
+	if (!silent) {
+		printk("VFS: Can't find a valid FAT filesystem on dev %s.\n",
+			kdevname(sb->s_dev));
+	}
+out_fail:
+	if (opts.iocharset) {
+		printk("FAT: freeing iocharset=%s\n", opts.iocharset);
+		kfree(opts.iocharset);
+	}
+	if(sbi->private_data)
+		kfree(sbi->private_data);
+	sbi->private_data = NULL;
+ 
+	return NULL;
+}
+
+int fat_statfs(struct super_block *sb,struct statfs *buf)
+{
+	int free,nr;
+       
+	if (MSDOS_SB(sb)->cvf_format &&
+	    MSDOS_SB(sb)->cvf_format->cvf_statfs)
+		return MSDOS_SB(sb)->cvf_format->cvf_statfs(sb,buf,
+						sizeof(struct statfs));
+	  
+	lock_fat(sb);
+	if (MSDOS_SB(sb)->free_clusters != -1)
+		free = MSDOS_SB(sb)->free_clusters;
+	else {
+		free = 0;
+		for (nr = 2; nr < MSDOS_SB(sb)->clusters+2; nr++)
+			if (!fat_access(sb,nr,-1)) free++;
+		MSDOS_SB(sb)->free_clusters = free;
+	}
+	unlock_fat(sb);
+	buf->f_type = sb->s_magic;
+	buf->f_bsize = 1 << MSDOS_SB(sb)->cluster_bits;
+	buf->f_blocks = MSDOS_SB(sb)->clusters;
+	buf->f_bfree = free;
+	buf->f_bavail = free;
+	buf->f_namelen = MSDOS_SB(sb)->options.isvfat ? 260 : 12;
+	return 0;
+}
+
+static int is_exec(char *extension)
+{
+	char *exe_extensions = "EXECOMBAT", *walk;
+
+	for (walk = exe_extensions; *walk; walk += 3)
+		if (!strncmp(extension, walk, 3))
+			return 1;
+	return 0;
+}
+
+static int fat_writepage(struct page *page)
+{
+	return block_write_full_page(page,fat_get_block);
+}
+static int fat_readpage(struct file *file, struct page *page)
+{
+	return block_read_full_page(page,fat_get_block);
+}
+static int fat_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)
+{
+	return cont_prepare_write(page,from,to,fat_get_block,
+		&MSDOS_I(page->mapping->host)->mmu_private);
+}
+static int _fat_bmap(struct address_space *mapping, long block)
+{
+	return generic_block_bmap(mapping,block,fat_get_block);
+}
+static struct address_space_operations fat_aops = {
+	readpage: fat_readpage,
+	writepage: fat_writepage,
+	sync_page: block_sync_page,
+	prepare_write: fat_prepare_write,
+	commit_write: generic_commit_write,
+	bmap: _fat_bmap
+};
+
+/* doesn't deal with root inode */
+static void fat_fill_inode(struct inode *inode, struct msdos_dir_entry *de)
+{
+	struct super_block *sb = inode->i_sb;
+	struct msdos_sb_info *sbi = MSDOS_SB(sb);
+	int nr;
+
+	INIT_LIST_HEAD(&MSDOS_I(inode)->i_fat_hash);
+	MSDOS_I(inode)->i_pos = 0;
+	MSDOS_I(inode)->i_fat_inode = inode;
+	inode->i_uid = sbi->options.fs_uid;
+	inode->i_gid = sbi->options.fs_gid;
+	inode->i_version = ++event;
+	inode->i_generation = CURRENT_TIME;
+	
+	if ((de->attr & ATTR_DIR) && !IS_FREE(de->name)) {
+		inode->i_generation &= ~1;
+		inode->i_mode = MSDOS_MKMODE(de->attr,S_IRWXUGO &
+		    ~sbi->options.fs_umask) | S_IFDIR;
+		inode->i_op = sbi->dir_ops;
+		inode->i_fop = &fat_dir_operations;
+
+		MSDOS_I(inode)->i_start = CF_LE_W(de->start);
+		if (sbi->fat_bits == 32)
+			MSDOS_I(inode)->i_start |= (CF_LE_W(de->starthi) << 16);
+
+		MSDOS_I(inode)->i_logstart = MSDOS_I(inode)->i_start;
+		inode->i_nlink = fat_subdirs(inode);
+		    /* includes .., compensating for "self" */
+#ifdef DEBUG
+		if (!inode->i_nlink) {
+			printk("directory %d: i_nlink == 0\n",inode->i_ino);
+			inode->i_nlink = 1;
+		}
+#endif
+		if ((nr = MSDOS_I(inode)->i_start) != 0)
+			while (nr != -1) {
+				inode->i_size += 1 << sbi->cluster_bits;
+				if (!(nr = fat_access(sb, nr, -1))) {
+					printk("Directory %ld: bad FAT\n",
+					    inode->i_ino);
+					break;
+				}
+			}
+		MSDOS_I(inode)->mmu_private = inode->i_size;
+	} else { /* not a directory */
+		inode->i_generation |= 1;
+		inode->i_mode = MSDOS_MKMODE(de->attr,
+		    ((sbi->options.showexec &&
+		       !is_exec(de->ext))
+		    	? S_IRUGO|S_IWUGO : S_IRWXUGO)
+		    & ~sbi->options.fs_umask) | S_IFREG;
+		MSDOS_I(inode)->i_start = CF_LE_W(de->start);
+		if (sbi->fat_bits == 32)
+			MSDOS_I(inode)->i_start |= (CF_LE_W(de->starthi) << 16);
+
+		MSDOS_I(inode)->i_logstart = MSDOS_I(inode)->i_start;
+		inode->i_size = CF_LE_L(de->size);
+	        inode->i_op = &fat_file_inode_operations;
+	        inode->i_fop = &fat_file_operations;
+		inode->i_mapping->a_ops = &fat_aops;
+		MSDOS_I(inode)->mmu_private = inode->i_size;
+	}
+	if(de->attr & ATTR_SYS)
+		if (sbi->options.sys_immutable)
+			inode->i_flags |= S_IMMUTABLE;
+	MSDOS_I(inode)->i_attrs = de->attr & ATTR_UNUSED;
+	/* this is as close to the truth as we can get ... */
+	inode->i_blksize = 1 << sbi->cluster_bits;
+	inode->i_blocks = ((inode->i_size + inode->i_blksize - 1)
+			   & ~(inode->i_blksize - 1)) >> 9;
+	inode->i_mtime = inode->i_atime =
+		date_dos2unix(CF_LE_W(de->time),CF_LE_W(de->date));
+	inode->i_ctime =
+		MSDOS_SB(sb)->options.isvfat
+		? date_dos2unix(CF_LE_W(de->ctime),CF_LE_W(de->cdate))
+		: inode->i_mtime;
+	MSDOS_I(inode)->i_ctime_ms = de->ctime_ms;
+}
+
+void fat_write_inode(struct inode *inode, int wait)
+{
+	struct super_block *sb = inode->i_sb;
+	struct buffer_head *bh;
+	struct msdos_dir_entry *raw_entry;
+	loff_t i_pos;
+
+retry:
+	i_pos = MSDOS_I(inode)->i_pos;
+	if (inode->i_ino == MSDOS_ROOT_INO || !i_pos) {
+		return;
+	}
+	lock_kernel();
+	if (!(bh = fat_bread(sb, i_pos >> MSDOS_SB(sb)->dir_per_block_bits))) {
+		printk("dev = %s, i_pos = %llu\n", kdevname(inode->i_dev), i_pos);
+		fat_fs_panic(sb, "msdos_write_inode: unable to read i-node block");
+		unlock_kernel();
+		return;
+	}
+	spin_lock(&fat_inode_lock);
+	if (i_pos != MSDOS_I(inode)->i_pos) {
+		spin_unlock(&fat_inode_lock);
+		fat_brelse(sb, bh);
+		unlock_kernel();
+		goto retry;
+	}
+
+	raw_entry = &((struct msdos_dir_entry *) (bh->b_data))
+	    [i_pos & (MSDOS_SB(sb)->dir_per_block - 1)];
+	if (S_ISDIR(inode->i_mode)) {
+		raw_entry->attr = ATTR_DIR;
+		raw_entry->size = 0;
+	}
+	else {
+		raw_entry->attr = ATTR_NONE;
+		raw_entry->size = CT_LE_L(inode->i_size);
+	}
+	raw_entry->attr |= MSDOS_MKATTR(inode->i_mode) |
+	    MSDOS_I(inode)->i_attrs;
+	raw_entry->start = CT_LE_W(MSDOS_I(inode)->i_logstart);
+	raw_entry->starthi = CT_LE_W(MSDOS_I(inode)->i_logstart >> 16);
+	fat_date_unix2dos(inode->i_mtime,&raw_entry->time,&raw_entry->date);
+	raw_entry->time = CT_LE_W(raw_entry->time);
+	raw_entry->date = CT_LE_W(raw_entry->date);
+	if (MSDOS_SB(sb)->options.isvfat) {
+		fat_date_unix2dos(inode->i_ctime,&raw_entry->ctime,&raw_entry->cdate);
+		raw_entry->ctime_ms = MSDOS_I(inode)->i_ctime_ms;
+		raw_entry->ctime = CT_LE_W(raw_entry->ctime);
+		raw_entry->cdate = CT_LE_W(raw_entry->cdate);
+	}
+	spin_unlock(&fat_inode_lock);
+	fat_mark_buffer_dirty(sb, bh);
+	fat_brelse(sb, bh);
+	unlock_kernel();
+}
+
+
+int fat_notify_change(struct dentry * dentry, struct iattr * attr)
+{
+	struct super_block *sb = dentry->d_sb;
+	struct inode *inode = dentry->d_inode;
+	int error;
+
+	/* FAT cannot truncate to a longer file */
+	if (attr->ia_valid & ATTR_SIZE) {
+		if (attr->ia_size > inode->i_size)
+			return -EPERM;
+	}
+
+	error = inode_change_ok(inode, attr);
+	if (error)
+		return MSDOS_SB(sb)->options.quiet ? 0 : error;
+
+	if (((attr->ia_valid & ATTR_UID) && 
+	     (attr->ia_uid != MSDOS_SB(sb)->options.fs_uid)) ||
+	    ((attr->ia_valid & ATTR_GID) && 
+	     (attr->ia_gid != MSDOS_SB(sb)->options.fs_gid)) ||
+	    ((attr->ia_valid & ATTR_MODE) &&
+	     (attr->ia_mode & ~MSDOS_VALID_MODE)))
+		error = -EPERM;
+
+	if (error)
+		return MSDOS_SB(sb)->options.quiet ? 0 : error;
+
+	error = inode_setattr(inode, attr);
+	if (error)
+		return error;
+
+	if (S_ISDIR(inode->i_mode))
+		inode->i_mode |= S_IXUGO;
+
+	inode->i_mode = ((inode->i_mode & S_IFMT) | ((((inode->i_mode & S_IRWXU
+	    & ~MSDOS_SB(sb)->options.fs_umask) | S_IRUSR) >> 6)*S_IXUGO)) &
+	    ~MSDOS_SB(sb)->options.fs_umask;
+	return 0;
+}
+MODULE_LICENSE("GPL");
diff --git a/fs/fat/misc.c b/fs/fat/misc.c
new file mode 100644
index 00000000000000..9c01afc8b897cd
--- /dev/null
+++ b/fs/fat/misc.c
@@ -0,0 +1,566 @@
+/*
+ *  linux/fs/fat/misc.c
+ *
+ *  Written 1992,1993 by Werner Almesberger
+ *  22/11/2000 - Fixed fat_date_unix2dos for dates earlier than 01/01/1980
+ *		 and date_dos2unix for date==0 by Igor Zhbanov(bsg@uniyar.ac.ru)
+ */
+
+#include <linux/fs.h>
+#include <linux/msdos_fs.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/stat.h>
+
+#if 0
+#  define PRINTK(x)	printk x
+#else
+#  define PRINTK(x)
+#endif
+#define Printk(x)	printk x
+
+/* Well-known binary file extensions - of course there are many more */
+
+static char ascii_extensions[] =
+  "TXT" "ME " "HTM" "1ST" "LOG" "   " 	/* text files */
+  "C  " "H  " "CPP" "LIS" "PAS" "FOR"  /* programming languages */
+  "F  " "MAK" "INC" "BAS" 		/* programming languages */
+  "BAT" "SH "				/* program code :) */
+  "INI"					/* config files */
+  "PBM" "PGM" "DXF"			/* graphics */
+  "TEX";				/* TeX */
+
+
+/*
+ * fat_fs_panic reports a severe file system problem and sets the file system
+ * read-only. The file system can be made writable again by remounting it.
+ */
+
+void fat_fs_panic(struct super_block *s,const char *msg)
+{
+	int not_ro;
+
+	not_ro = !(s->s_flags & MS_RDONLY);
+	if (not_ro) s->s_flags |= MS_RDONLY;
+	printk("Filesystem panic (dev %s).\n  %s\n", kdevname(s->s_dev), msg);
+	if (not_ro)
+		printk("  File system has been set read-only\n");
+}
+
+
+/*
+ * fat_is_binary selects optional text conversion based on the conversion mode
+ * and the extension part of the file name.
+ */
+
+int fat_is_binary(char conversion,char *extension)
+{
+	char *walk;
+
+	switch (conversion) {
+		case 'b':
+			return 1;
+		case 't':
+			return 0;
+		case 'a':
+			for (walk = ascii_extensions; *walk; walk += 3)
+				if (!strncmp(extension,walk,3)) return 0;
+			return 1;	/* default binary conversion */
+		default:
+			printk("Invalid conversion mode - defaulting to "
+			    "binary.\n");
+			return 1;
+	}
+}
+
+void lock_fat(struct super_block *sb)
+{
+	down(&(MSDOS_SB(sb)->fat_lock));
+}
+
+void unlock_fat(struct super_block *sb)
+{
+	up(&(MSDOS_SB(sb)->fat_lock));
+}
+
+/* Flushes the number of free clusters on FAT32 */
+/* XXX: Need to write one per FSINFO block.  Currently only writes 1 */
+void fat_clusters_flush(struct super_block *sb)
+{
+	struct buffer_head *bh;
+	struct fat_boot_fsinfo *fsinfo;
+
+	bh = fat_bread(sb, MSDOS_SB(sb)->fsinfo_sector);
+	if (bh == NULL) {
+		printk("FAT bread failed in fat_clusters_flush\n");
+		return;
+	}
+
+	fsinfo = (struct fat_boot_fsinfo *)bh->b_data;
+	/* Sanity check */
+	if (!IS_FSINFO(fsinfo)) {
+		printk("FAT: Did not find valid FSINFO signature.\n"
+		       "Found signature1 0x%x signature2 0x%x sector=%ld.\n",
+		       CF_LE_L(fsinfo->signature1), CF_LE_L(fsinfo->signature2),
+		       MSDOS_SB(sb)->fsinfo_sector);
+		return;
+	}
+	fsinfo->free_clusters = CF_LE_L(MSDOS_SB(sb)->free_clusters);
+	fsinfo->next_cluster = CF_LE_L(MSDOS_SB(sb)->prev_free);
+	fat_mark_buffer_dirty(sb, bh);
+	fat_brelse(sb, bh);
+}
+
+/*
+ * fat_add_cluster tries to allocate a new cluster and adds it to the
+ * file represented by inode.
+ */
+int fat_add_cluster(struct inode *inode)
+{
+	struct super_block *sb = inode->i_sb;
+	int count, nr, limit, last, curr, file_cluster;
+	int cluster_size = MSDOS_SB(sb)->cluster_size;
+	int res = -ENOSPC;
+	
+	lock_fat(sb);
+	
+	if (MSDOS_SB(sb)->free_clusters == 0) {
+		unlock_fat(sb);
+		return res;
+	}
+	limit = MSDOS_SB(sb)->clusters;
+	nr = limit; /* to keep GCC happy */
+	for (count = 0; count < limit; count++) {
+		nr = ((count + MSDOS_SB(sb)->prev_free) % limit) + 2;
+		if (fat_access(sb, nr, -1) == 0)
+			break;
+	}
+	if (count >= limit) {
+		MSDOS_SB(sb)->free_clusters = 0;
+		unlock_fat(sb);
+		return res;
+	}
+	
+	MSDOS_SB(sb)->prev_free = (count + MSDOS_SB(sb)->prev_free + 1) % limit;
+	fat_access(sb, nr, EOF_FAT(sb));
+	if (MSDOS_SB(sb)->free_clusters != -1)
+		MSDOS_SB(sb)->free_clusters--;
+	if (MSDOS_SB(sb)->fat_bits == 32)
+		fat_clusters_flush(sb);
+	
+	unlock_fat(sb);
+	
+	/* We must locate the last cluster of the file to add this
+	   new one (nr) to the end of the link list (the FAT).
+	   
+	   Here file_cluster will be the number of the last cluster of the
+	   file (before we add nr).
+	   
+	   last is the corresponding cluster number on the disk. We will
+	   use last to plug the nr cluster. We will use file_cluster to
+	   update the cache.
+	*/
+	last = file_cluster = 0;
+	if ((curr = MSDOS_I(inode)->i_start) != 0) {
+		fat_cache_lookup(inode, INT_MAX, &last, &curr);
+		file_cluster = last;
+		while (curr && curr != -1){
+			file_cluster++;
+			if (!(curr = fat_access(sb, last = curr,-1))) {
+				fat_fs_panic(sb, "File without EOF");
+				return res;
+			}
+		}
+	}
+	if (last) {
+		fat_access(sb, last, nr);
+		fat_cache_add(inode, file_cluster, nr);
+	} else {
+		MSDOS_I(inode)->i_start = nr;
+		MSDOS_I(inode)->i_logstart = nr;
+		mark_inode_dirty(inode);
+	}
+	if (file_cluster
+	    != inode->i_blocks / cluster_size / (sb->s_blocksize / 512)) {
+		printk ("file_cluster badly computed!!! %d <> %ld\n",
+			file_cluster,
+			inode->i_blocks / cluster_size / (sb->s_blocksize / 512));
+		fat_cache_inval_inode(inode);
+	}
+	inode->i_blocks += (1 << MSDOS_SB(sb)->cluster_bits) / 512;
+
+	return nr;
+}
+
+struct buffer_head *fat_extend_dir(struct inode *inode)
+{
+	struct super_block *sb = inode->i_sb;
+	int nr, sector, last_sector;
+	struct buffer_head *bh, *res = NULL;
+	int cluster_size = MSDOS_SB(sb)->cluster_size;
+
+	if (MSDOS_SB(sb)->fat_bits != 32) {
+		if (inode->i_ino == MSDOS_ROOT_INO)
+			return res;
+	}
+
+	nr = fat_add_cluster(inode);
+	if (nr < 0)
+		return res;
+	
+	sector = MSDOS_SB(sb)->data_start + (nr - 2) * cluster_size;
+	last_sector = sector + cluster_size;
+	if (MSDOS_SB(sb)->cvf_format && MSDOS_SB(sb)->cvf_format->zero_out_cluster)
+		MSDOS_SB(sb)->cvf_format->zero_out_cluster(inode, nr);
+	else {
+		for ( ; sector < last_sector; sector++) {
+#ifdef DEBUG
+			printk("zeroing sector %d\n", sector);
+#endif
+			if (!(bh = fat_getblk(sb, sector)))
+				printk("getblk failed\n");
+			else {
+				memset(bh->b_data, 0, sb->s_blocksize);
+				fat_set_uptodate(sb, bh, 1);
+				fat_mark_buffer_dirty(sb, bh);
+				if (!res)
+					res = bh;
+				else
+					fat_brelse(sb, bh);
+			}
+		}
+	}
+	if (inode->i_size & (sb->s_blocksize - 1)) {
+		fat_fs_panic(sb, "Odd directory size");
+		inode->i_size = (inode->i_size + sb->s_blocksize)
+			& ~(sb->s_blocksize - 1);
+	}
+	inode->i_size += 1 << MSDOS_SB(sb)->cluster_bits;
+	MSDOS_I(inode)->mmu_private += 1 << MSDOS_SB(sb)->cluster_bits;
+	mark_inode_dirty(inode);
+
+	return res;
+}
+
+/* Linear day numbers of the respective 1sts in non-leap years. */
+
+static int day_n[] = { 0,31,59,90,120,151,181,212,243,273,304,334,0,0,0,0 };
+		  /* JanFebMarApr May Jun Jul Aug Sep Oct Nov Dec */
+
+
+extern struct timezone sys_tz;
+
+
+/* Convert a MS-DOS time/date pair to a UNIX date (seconds since 1 1 70). */
+
+int date_dos2unix(unsigned short time,unsigned short date)
+{
+	int month,year,secs;
+
+	/* first subtract and mask after that... Otherwise, if
+	   date == 0, bad things happen */
+	month = ((date >> 5) - 1) & 15;
+	year = date >> 9;
+	secs = (time & 31)*2+60*((time >> 5) & 63)+(time >> 11)*3600+86400*
+	    ((date & 31)-1+day_n[month]+(year/4)+year*365-((year & 3) == 0 &&
+	    month < 2 ? 1 : 0)+3653);
+			/* days since 1.1.70 plus 80's leap day */
+	secs += sys_tz.tz_minuteswest*60;
+	return secs;
+}
+
+
+/* Convert linear UNIX date to a MS-DOS time/date pair. */
+
+void fat_date_unix2dos(int unix_date,unsigned short *time,
+    unsigned short *date)
+{
+	int day,year,nl_day,month;
+
+	unix_date -= sys_tz.tz_minuteswest*60;
+
+	/* Jan 1 GMT 00:00:00 1980. But what about another time zone? */
+	if (unix_date < 315532800)
+		unix_date = 315532800;
+
+	*time = (unix_date % 60)/2+(((unix_date/60) % 60) << 5)+
+	    (((unix_date/3600) % 24) << 11);
+	day = unix_date/86400-3652;
+	year = day/365;
+	if ((year+3)/4+365*year > day) year--;
+	day -= (year+3)/4+365*year;
+	if (day == 59 && !(year & 3)) {
+		nl_day = day;
+		month = 2;
+	}
+	else {
+		nl_day = (year & 3) || day <= 59 ? day : day-1;
+		for (month = 0; month < 12; month++)
+			if (day_n[month] > nl_day) break;
+	}
+	*date = nl_day-day_n[month-1]+1+(month << 5)+(year << 9);
+}
+
+
+/* Returns the inode number of the directory entry at offset pos. If bh is
+   non-NULL, it is brelse'd before. Pos is incremented. The buffer header is
+   returned in bh.
+   AV. Most often we do it item-by-item. Makes sense to optimize.
+   AV. OK, there we go: if both bh and de are non-NULL we assume that we just
+   AV. want the next entry (took one explicit de=NULL in vfat/namei.c).
+   AV. It's done in fat_get_entry() (inlined), here the slow case lives.
+   AV. Additionally, when we return -1 (i.e. reached the end of directory)
+   AV. we make bh NULL. 
+ */
+
+int fat__get_entry(struct inode *dir, loff_t *pos,struct buffer_head **bh,
+		   struct msdos_dir_entry **de, loff_t *i_pos)
+{
+	struct super_block *sb = dir->i_sb;
+	struct msdos_sb_info *sbi = MSDOS_SB(sb);
+	int sector;
+	loff_t offset;
+
+	while (1) {
+		offset = *pos;
+		PRINTK (("get_entry offset %d\n",offset));
+		if (*bh)
+			fat_brelse(sb, *bh);
+		*bh = NULL;
+		if ((sector = fat_bmap(dir,offset >> sb->s_blocksize_bits)) == -1)
+			return -1;
+		PRINTK (("get_entry sector %d %p\n",sector,*bh));
+		PRINTK (("get_entry sector apres brelse\n"));
+		if (!sector)
+			return -1; /* beyond EOF */
+		*pos += sizeof(struct msdos_dir_entry);
+		if (!(*bh = fat_bread(sb, sector))) {
+			printk("Directory sread (sector 0x%x) failed\n",sector);
+			continue;
+		}
+		PRINTK (("get_entry apres sread\n"));
+
+		offset &= sb->s_blocksize - 1;
+		*de = (struct msdos_dir_entry *) ((*bh)->b_data + offset);
+		*i_pos = ((loff_t)sector << sbi->dir_per_block_bits) + (offset >> MSDOS_DIR_BITS);
+
+		return 0;
+	}
+}
+
+
+/*
+ * Now an ugly part: this set of directory scan routines works on clusters
+ * rather than on inodes and sectors. They are necessary to locate the '..'
+ * directory "inode". raw_scan_sector operates in four modes:
+ *
+ * name     number   ino      action
+ * -------- -------- -------- -------------------------------------------------
+ * non-NULL -        X        Find an entry with that name
+ * NULL     non-NULL non-NULL Find an entry whose data starts at *number
+ * NULL     non-NULL NULL     Count subdirectories in *number. (*)
+ * NULL     NULL     non-NULL Find an empty entry
+ *
+ * (*) The return code should be ignored. It DOES NOT indicate success or
+ *     failure. *number has to be initialized to zero.
+ *
+ * - = not used, X = a value is returned unless NULL
+ *
+ * If res_bh is non-NULL, the buffer is not deallocated but returned to the
+ * caller on success. res_de is set accordingly.
+ *
+ * If cont is non-zero, raw_found continues with the entry after the one
+ * res_bh/res_de point to.
+ */
+
+
+#define RSS_NAME /* search for name */ \
+    done = !strncmp(data[entry].name,name,MSDOS_NAME) && \
+     !(data[entry].attr & ATTR_VOLUME);
+
+#define RSS_START /* search for start cluster */ \
+    done = !IS_FREE(data[entry].name) \
+      && ( \
+           ( \
+             (sbi->fat_bits != 32) ? 0 : (CF_LE_W(data[entry].starthi) << 16) \
+           ) \
+           | CF_LE_W(data[entry].start) \
+         ) == *number;
+
+#define RSS_FREE /* search for free entry */ \
+    { \
+	done = IS_FREE(data[entry].name); \
+    }
+
+#define RSS_COUNT /* count subdirectories */ \
+    { \
+	done = 0; \
+	if (!IS_FREE(data[entry].name) && (data[entry].attr & ATTR_DIR)) \
+	    (*number)++; \
+    }
+
+static int raw_scan_sector(struct super_block *sb, int sector,
+			   const char *name, int *number, loff_t *i_pos,
+			   struct buffer_head **res_bh,
+			   struct msdos_dir_entry **res_de)
+{
+	struct msdos_sb_info *sbi = MSDOS_SB(sb);
+	struct buffer_head *bh;
+	struct msdos_dir_entry *data;
+	int entry,start,done;
+
+	if (!(bh = fat_bread(sb, sector)))
+		return -EIO;
+	data = (struct msdos_dir_entry *) bh->b_data;
+	for (entry = 0; entry < sbi->dir_per_block; entry++) {
+/* RSS_COUNT:  if (data[entry].name == name) done=true else done=false. */
+		if (name) {
+			RSS_NAME
+		} else {
+			if (!i_pos) RSS_COUNT
+			else {
+				if (number) RSS_START
+				else RSS_FREE
+			}
+		}
+		if (done) {
+			if (i_pos) {
+				*i_pos = ((loff_t)sector << sbi->dir_per_block_bits) + entry;
+			}
+			start = CF_LE_W(data[entry].start);
+			if (sbi->fat_bits == 32)
+				start |= (CF_LE_W(data[entry].starthi) << 16);
+
+			if (!res_bh)
+				fat_brelse(sb, bh);
+			else {
+				*res_bh = bh;
+				*res_de = &data[entry];
+			}
+			return start;
+		}
+	}
+	fat_brelse(sb, bh);
+	return -ENOENT;
+}
+
+
+/*
+ * raw_scan_root performs raw_scan_sector on the root directory until the
+ * requested entry is found or the end of the directory is reached.
+ */
+
+static int raw_scan_root(struct super_block *sb, const char *name,
+			 int *number, loff_t *i_pos,
+			 struct buffer_head **res_bh,
+			 struct msdos_dir_entry **res_de)
+{
+	int count,cluster;
+
+	for (count = 0;
+	     count < MSDOS_SB(sb)->dir_entries / MSDOS_SB(sb)->dir_per_block;
+	     count++) {
+		cluster = raw_scan_sector(sb, MSDOS_SB(sb)->dir_start + count,
+					  name, number, i_pos, res_bh, res_de);
+		if (cluster >= 0)
+			return cluster;
+	}
+	return -ENOENT;
+}
+
+
+/*
+ * raw_scan_nonroot performs raw_scan_sector on a non-root directory until the
+ * requested entry is found or the end of the directory is reached.
+ */
+
+static int raw_scan_nonroot(struct super_block *sb, int start, const char *name,
+			    int *number, loff_t *i_pos,
+			    struct buffer_head **res_bh,
+			    struct msdos_dir_entry **res_de)
+{
+	struct msdos_sb_info *sbi = MSDOS_SB(sb);
+	int count, cluster, sector;
+
+#ifdef DEBUG
+	printk("raw_scan_nonroot: start=%d\n",start);
+#endif
+	do {
+		for (count = 0; count < sbi->cluster_size; count++) {
+			sector = (start - 2) * sbi->cluster_size
+				+ count + sbi->data_start;
+			cluster = raw_scan_sector(sb, sector, name, number,
+						  i_pos, res_bh, res_de);
+			if (cluster >= 0)
+				return cluster;
+		}
+		if (!(start = fat_access(sb,start,-1))) {
+			fat_fs_panic(sb,"FAT error");
+			break;
+		}
+#ifdef DEBUG
+	printk("next start: %d\n",start);
+#endif
+	}
+	while (start != -1);
+	return -ENOENT;
+}
+
+
+/*
+ * raw_scan performs raw_scan_sector on any sector.
+ *
+ * NOTE: raw_scan must not be used on a directory that is is the process of
+ *       being created.
+ */
+
+static int raw_scan(struct super_block *sb, int start, const char *name,
+		    loff_t *i_pos, struct buffer_head **res_bh,
+		    struct msdos_dir_entry **res_de)
+{
+	if (start)
+		return raw_scan_nonroot(sb,start,name,NULL,i_pos,res_bh,res_de);
+	else
+		return raw_scan_root(sb,name,NULL,i_pos,res_bh,res_de);
+}
+
+/*
+ * fat_subdirs counts the number of sub-directories of dir. It can be run
+ * on directories being created.
+ */
+int fat_subdirs(struct inode *dir)
+{
+	struct msdos_sb_info *sbi = MSDOS_SB(dir->i_sb);
+	int number;
+
+	number = 0;
+	if ((dir->i_ino == MSDOS_ROOT_INO) && (sbi->fat_bits != 32))
+		raw_scan_root(dir->i_sb, NULL, &number, NULL, NULL, NULL);
+	else {
+		if ((dir->i_ino != MSDOS_ROOT_INO) && !MSDOS_I(dir)->i_start)
+			return 0; /* in mkdir */
+		else {
+			raw_scan_nonroot(dir->i_sb, MSDOS_I(dir)->i_start,
+					 NULL, &number, NULL, NULL, NULL);
+		}
+	}
+	return number;
+}
+
+
+/*
+ * Scans a directory for a given file (name points to its formatted name) or
+ * for an empty directory slot (name is NULL). Returns an error code or zero.
+ */
+
+int fat_scan(struct inode *dir, const char *name, struct buffer_head **res_bh,
+	     struct msdos_dir_entry **res_de, loff_t *i_pos)
+{
+	int res;
+
+	res = raw_scan(dir->i_sb, MSDOS_I(dir)->i_start, name, i_pos,
+		       res_bh, res_de);
+	return (res < 0) ? res : 0;
+}
diff --git a/fs/fcntl.c b/fs/fcntl.c
new file mode 100644
index 00000000000000..9447229f219533
--- /dev/null
+++ b/fs/fcntl.c
@@ -0,0 +1,541 @@
+/*
+ *  linux/fs/fcntl.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ */
+
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/file.h>
+#include <linux/dnotify.h>
+#include <linux/smp_lock.h>
+#include <linux/slab.h>
+#include <linux/iobuf.h>
+#include <linux/ptrace.h>
+
+#include <asm/poll.h>
+#include <asm/siginfo.h>
+#include <asm/uaccess.h>
+
+extern int sock_fcntl (struct file *, unsigned int cmd, unsigned long arg);
+extern int fcntl_setlease(unsigned int fd, struct file *filp, long arg);
+extern int fcntl_getlease(struct file *filp);
+
+/* Expand files.  Return <0 on error; 0 nothing done; 1 files expanded,
+ * we may have blocked. 
+ *
+ * Should be called with the files->file_lock spinlock held for write.
+ */
+static int expand_files(struct files_struct *files, int nr)
+{
+	int err, expand = 0;
+#ifdef FDSET_DEBUG	
+	printk (KERN_ERR __FUNCTION__ " %d: nr = %d\n", current->pid, nr);
+#endif
+	
+	if (nr >= files->max_fdset) {
+		expand = 1;
+		if ((err = expand_fdset(files, nr)))
+			goto out;
+	}
+	if (nr >= files->max_fds) {
+		expand = 1;
+		if ((err = expand_fd_array(files, nr)))
+			goto out;
+	}
+	err = expand;
+ out:
+#ifdef FDSET_DEBUG	
+	if (err)
+		printk (KERN_ERR __FUNCTION__ " %d: return %d\n", current->pid, err);
+#endif
+	return err;
+}
+
+/*
+ * locate_fd finds a free file descriptor in the open_fds fdset,
+ * expanding the fd arrays if necessary.  The files write lock will be
+ * held on exit to ensure that the fd can be entered atomically.
+ */
+
+static int locate_fd(struct files_struct *files, 
+			    struct file *file, int orig_start)
+{
+	unsigned int newfd;
+	int error;
+	int start;
+
+	write_lock(&files->file_lock);
+	
+	error = -EINVAL;
+	if (orig_start >= current->rlim[RLIMIT_NOFILE].rlim_cur)
+		goto out;
+
+repeat:
+	/*
+	 * Someone might have closed fd's in the range
+	 * orig_start..files->next_fd
+	 */
+	start = orig_start;
+	if (start < files->next_fd)
+		start = files->next_fd;
+
+	newfd = start;
+	if (start < files->max_fdset) {
+		newfd = find_next_zero_bit(files->open_fds->fds_bits,
+			files->max_fdset, start);
+	}
+	
+	error = -EMFILE;
+	if (newfd >= current->rlim[RLIMIT_NOFILE].rlim_cur)
+		goto out;
+
+	error = expand_files(files, newfd);
+	if (error < 0)
+		goto out;
+
+	/*
+	 * If we needed to expand the fs array we
+	 * might have blocked - try again.
+	 */
+	if (error)
+		goto repeat;
+
+	if (start <= files->next_fd)
+		files->next_fd = newfd + 1;
+	
+	error = newfd;
+	
+out:
+	return error;
+}
+
+static inline void allocate_fd(struct files_struct *files, 
+					struct file *file, int fd)
+{
+	FD_SET(fd, files->open_fds);
+	FD_CLR(fd, files->close_on_exec);
+	write_unlock(&files->file_lock);
+	fd_install(fd, file);
+}
+
+static int dupfd(struct file *file, int start)
+{
+	struct files_struct * files = current->files;
+	int ret;
+
+	ret = locate_fd(files, file, start);
+	if (ret < 0) 
+		goto out_putf;
+	allocate_fd(files, file, ret);
+	return ret;
+
+out_putf:
+	write_unlock(&files->file_lock);
+	fput(file);
+	return ret;
+}
+
+asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd)
+{
+	int err = -EBADF;
+	struct file * file, *tofree;
+	struct files_struct * files = current->files;
+
+	write_lock(&files->file_lock);
+	if (!(file = fcheck(oldfd)))
+		goto out_unlock;
+	err = newfd;
+	if (newfd == oldfd)
+		goto out_unlock;
+	err = -EBADF;
+	if (newfd >= current->rlim[RLIMIT_NOFILE].rlim_cur)
+		goto out_unlock;
+	get_file(file);			/* We are now finished with oldfd */
+
+	err = expand_files(files, newfd);
+	if (err < 0)
+		goto out_fput;
+
+	/* To avoid races with open() and dup(), we will mark the fd as
+	 * in-use in the open-file bitmap throughout the entire dup2()
+	 * process.  This is quite safe: do_close() uses the fd array
+	 * entry, not the bitmap, to decide what work needs to be
+	 * done.  --sct */
+	/* Doesn't work. open() might be there first. --AV */
+
+	/* Yes. It's a race. In user space. Nothing sane to do */
+	err = -EBUSY;
+	tofree = files->fd[newfd];
+	if (!tofree && FD_ISSET(newfd, files->open_fds))
+		goto out_fput;
+
+	files->fd[newfd] = file;
+	FD_SET(newfd, files->open_fds);
+	FD_CLR(newfd, files->close_on_exec);
+	write_unlock(&files->file_lock);
+
+	if (tofree)
+		filp_close(tofree, files);
+	err = newfd;
+out:
+	return err;
+out_unlock:
+	write_unlock(&files->file_lock);
+	goto out;
+
+out_fput:
+	write_unlock(&files->file_lock);
+	fput(file);
+	goto out;
+}
+
+asmlinkage long sys_dup(unsigned int fildes)
+{
+	int ret = -EBADF;
+	struct file * file = fget(fildes);
+
+	if (file)
+		ret = dupfd(file, 0);
+	return ret;
+}
+
+#define SETFL_MASK (O_APPEND | O_NONBLOCK | O_NDELAY | FASYNC | O_DIRECT)
+
+static int setfl(int fd, struct file * filp, unsigned long arg)
+{
+	struct inode * inode = filp->f_dentry->d_inode;
+	int error;
+
+	/*
+	 * In the case of an append-only file, O_APPEND
+	 * cannot be cleared
+	 */
+	if (!(arg & O_APPEND) && IS_APPEND(inode))
+		return -EPERM;
+
+	/* Did FASYNC state change? */
+	if ((arg ^ filp->f_flags) & FASYNC) {
+		if (filp->f_op && filp->f_op->fasync) {
+			error = filp->f_op->fasync(fd, filp, (arg & FASYNC) != 0);
+			if (error < 0)
+				return error;
+		}
+	}
+
+	if (arg & O_DIRECT) {
+		/*
+		 * alloc_kiovec() can sleep and we are only serialized by
+		 * the big kernel lock here, so abuse the i_sem to serialize
+		 * this case too. We of course wouldn't need to go deep down
+		 * to the inode layer, we could stay at the file layer, but
+		 * we don't want to pay for the memory of a semaphore in each
+		 * file structure too and we use the inode semaphore that we just
+		 * pay for anyways.
+		 */
+		error = 0;
+		down(&inode->i_sem);
+		if (!filp->f_iobuf)
+			error = alloc_kiovec(1, &filp->f_iobuf);
+		up(&inode->i_sem);
+		if (error < 0)
+			return error;
+	}
+
+	/* required for strict SunOS emulation */
+	if (O_NONBLOCK != O_NDELAY)
+	       if (arg & O_NDELAY)
+		   arg |= O_NONBLOCK;
+
+	filp->f_flags = (arg & SETFL_MASK) | (filp->f_flags & ~SETFL_MASK);
+	return 0;
+}
+
+static long do_fcntl(unsigned int fd, unsigned int cmd,
+		     unsigned long arg, struct file * filp)
+{
+	long err = -EINVAL;
+
+	switch (cmd) {
+		case F_DUPFD:
+			if (arg < NR_OPEN) {
+				get_file(filp);
+				err = dupfd(filp, arg);
+			}
+			break;
+		case F_GETFD:
+			err = get_close_on_exec(fd);
+			break;
+		case F_SETFD:
+			err = 0;
+			set_close_on_exec(fd, arg&1);
+			break;
+		case F_GETFL:
+			err = filp->f_flags;
+			break;
+		case F_SETFL:
+			lock_kernel();
+			err = setfl(fd, filp, arg);
+			unlock_kernel();
+			break;
+		case F_GETLK:
+			err = fcntl_getlk(fd, (struct flock *) arg);
+			break;
+		case F_SETLK:
+		case F_SETLKW:
+			err = fcntl_setlk(fd, cmd, (struct flock *) arg);
+			break;
+		case F_GETOWN:
+			/*
+			 * XXX If f_owner is a process group, the
+			 * negative return value will get converted
+			 * into an error.  Oops.  If we keep the
+			 * current syscall conventions, the only way
+			 * to fix this will be in libc.
+			 */
+			err = filp->f_owner.pid;
+			force_successful_syscall_return();
+			break;
+		case F_SETOWN:
+			lock_kernel();
+			filp->f_owner.pid = arg;
+			filp->f_owner.uid = current->uid;
+			filp->f_owner.euid = current->euid;
+			err = 0;
+			if (S_ISSOCK (filp->f_dentry->d_inode->i_mode))
+				err = sock_fcntl (filp, F_SETOWN, arg);
+			unlock_kernel();
+			break;
+		case F_GETSIG:
+			err = filp->f_owner.signum;
+			break;
+		case F_SETSIG:
+			/* arg == 0 restores default behaviour. */
+			if (arg < 0 || arg > _NSIG) {
+				break;
+			}
+			err = 0;
+			filp->f_owner.signum = arg;
+			break;
+		case F_GETLEASE:
+			err = fcntl_getlease(filp);
+			break;
+		case F_SETLEASE:
+			err = fcntl_setlease(fd, filp, arg);
+			break;
+		case F_NOTIFY:
+			err = fcntl_dirnotify(fd, filp, arg);
+			break;
+		default:
+			/* sockets need a few special fcntls. */
+			err = -EINVAL;
+			if (S_ISSOCK (filp->f_dentry->d_inode->i_mode))
+				err = sock_fcntl (filp, cmd, arg);
+			break;
+	}
+
+	return err;
+}
+
+asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg)
+{	
+	struct file * filp;
+	long err = -EBADF;
+
+	filp = fget(fd);
+	if (!filp)
+		goto out;
+
+	err = do_fcntl(fd, cmd, arg, filp);
+
+ 	fput(filp);
+out:
+	return err;
+}
+
+#if BITS_PER_LONG == 32
+asmlinkage long sys_fcntl64(unsigned int fd, unsigned int cmd, unsigned long arg)
+{	
+	struct file * filp;
+	long err;
+
+	err = -EBADF;
+	filp = fget(fd);
+	if (!filp)
+		goto out;
+
+	switch (cmd) {
+		case F_GETLK64:
+			err = fcntl_getlk64(fd, (struct flock64 *) arg);
+			break;
+		case F_SETLK64:
+			err = fcntl_setlk64(fd, cmd, (struct flock64 *) arg);
+			break;
+		case F_SETLKW64:
+			err = fcntl_setlk64(fd, cmd, (struct flock64 *) arg);
+			break;
+		default:
+			err = do_fcntl(fd, cmd, arg, filp);
+			break;
+	}
+	fput(filp);
+out:
+	return err;
+}
+#endif
+
+/* Table to convert sigio signal codes into poll band bitmaps */
+
+static long band_table[NSIGPOLL] = {
+	POLLIN | POLLRDNORM,			/* POLL_IN */
+	POLLOUT | POLLWRNORM | POLLWRBAND,	/* POLL_OUT */
+	POLLIN | POLLRDNORM | POLLMSG,		/* POLL_MSG */
+	POLLERR,				/* POLL_ERR */
+	POLLPRI | POLLRDBAND,			/* POLL_PRI */
+	POLLHUP | POLLERR			/* POLL_HUP */
+};
+
+static void send_sigio_to_task(struct task_struct *p,
+			       struct fown_struct *fown, 
+			       int fd,
+			       int reason)
+{
+	if ((fown->euid != 0) &&
+	    (fown->euid ^ p->suid) && (fown->euid ^ p->uid) &&
+	    (fown->uid ^ p->suid) && (fown->uid ^ p->uid))
+		return;
+	switch (fown->signum) {
+		siginfo_t si;
+		default:
+			/* Queue a rt signal with the appropriate fd as its
+			   value.  We use SI_SIGIO as the source, not 
+			   SI_KERNEL, since kernel signals always get 
+			   delivered even if we can't queue.  Failure to
+			   queue in this case _should_ be reported; we fall
+			   back to SIGIO in that case. --sct */
+			si.si_signo = fown->signum;
+			si.si_errno = 0;
+		        si.si_code  = reason;
+			/* Make sure we are called with one of the POLL_*
+			   reasons, otherwise we could leak kernel stack into
+			   userspace.  */
+			if ((reason & __SI_MASK) != __SI_POLL)
+				BUG();
+			if (reason - POLL_IN >= NSIGPOLL)
+				si.si_band  = ~0L;
+			else
+				si.si_band = band_table[reason - POLL_IN];
+			si.si_fd    = fd;
+			if (!send_sig_info(fown->signum, &si, p))
+				break;
+		/* fall-through: fall back on the old plain SIGIO signal */
+		case 0:
+			send_sig(SIGIO, p, 1);
+	}
+}
+
+void send_sigio(struct fown_struct *fown, int fd, int band)
+{
+	struct task_struct * p;
+	int   pid	= fown->pid;
+	
+	read_lock(&tasklist_lock);
+	if ( (pid > 0) && (p = find_task_by_pid(pid)) ) {
+		send_sigio_to_task(p, fown, fd, band);
+		goto out;
+	}
+	for_each_task(p) {
+		int match = p->pid;
+		if (pid < 0)
+			match = -p->pgrp;
+		if (pid != match)
+			continue;
+		send_sigio_to_task(p, fown, fd, band);
+	}
+out:
+	read_unlock(&tasklist_lock);
+}
+
+static rwlock_t fasync_lock = RW_LOCK_UNLOCKED;
+static kmem_cache_t *fasync_cache;
+
+/*
+ * fasync_helper() is used by some character device drivers (mainly mice)
+ * to set up the fasync queue. It returns negative on error, 0 if it did
+ * no changes and positive if it added/deleted the entry.
+ */
+int fasync_helper(int fd, struct file * filp, int on, struct fasync_struct **fapp)
+{
+	struct fasync_struct *fa, **fp;
+	struct fasync_struct *new = NULL;
+	int result = 0;
+
+	if (on) {
+		new = kmem_cache_alloc(fasync_cache, SLAB_KERNEL);
+		if (!new)
+			return -ENOMEM;
+	}
+	write_lock_irq(&fasync_lock);
+	for (fp = fapp; (fa = *fp) != NULL; fp = &fa->fa_next) {
+		if (fa->fa_file == filp) {
+			if(on) {
+				fa->fa_fd = fd;
+				kmem_cache_free(fasync_cache, new);
+			} else {
+				*fp = fa->fa_next;
+				kmem_cache_free(fasync_cache, fa);
+				result = 1;
+			}
+			goto out;
+		}
+	}
+
+	if (on) {
+		new->magic = FASYNC_MAGIC;
+		new->fa_file = filp;
+		new->fa_fd = fd;
+		new->fa_next = *fapp;
+		*fapp = new;
+		result = 1;
+	}
+out:
+	write_unlock_irq(&fasync_lock);
+	return result;
+}
+
+void __kill_fasync(struct fasync_struct *fa, int sig, int band)
+{
+	while (fa) {
+		struct fown_struct * fown;
+		if (fa->magic != FASYNC_MAGIC) {
+			printk(KERN_ERR "kill_fasync: bad magic number in "
+			       "fasync_struct!\n");
+			return;
+		}
+		fown = &fa->fa_file->f_owner;
+		/* Don't send SIGURG to processes which have not set a
+		   queued signum: SIGURG has its own default signalling
+		   mechanism. */
+		if (fown->pid && !(sig == SIGURG && fown->signum == 0))
+			send_sigio(fown, fa->fa_fd, band);
+		fa = fa->fa_next;
+	}
+}
+
+void kill_fasync(struct fasync_struct **fp, int sig, int band)
+{
+	read_lock(&fasync_lock);
+	__kill_fasync(*fp, sig, band);
+	read_unlock(&fasync_lock);
+}
+
+static int __init fasync_init(void)
+{
+	fasync_cache = kmem_cache_create("fasync_cache",
+		sizeof(struct fasync_struct), 0, 0, NULL, NULL);
+	if (!fasync_cache)
+		panic("cannot create fasync slab cache");
+	return 0;
+}
+
+module_init(fasync_init)
diff --git a/fs/fifo.c b/fs/fifo.c
new file mode 100644
index 00000000000000..f5738c126bce40
--- /dev/null
+++ b/fs/fifo.c
@@ -0,0 +1,157 @@
+/*
+ *  linux/fs/fifo.c
+ *
+ *  written by Paul H. Hargrove
+ *
+ *  Fixes:
+ *	10-06-1999, AV: fixed OOM handling in fifo_open(), moved
+ *			initialization there, switched to external
+ *			allocation of pipe_inode_info.
+ */
+
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/smp_lock.h>
+
+static void wait_for_partner(struct inode* inode, unsigned int* cnt)
+{
+	int cur = *cnt;	
+	while(cur == *cnt) {
+		pipe_wait(inode);
+		if(signal_pending(current))
+			break;
+	}
+}
+
+static void wake_up_partner(struct inode* inode)
+{
+	wake_up_interruptible(PIPE_WAIT(*inode));
+}
+
+static int fifo_open(struct inode *inode, struct file *filp)
+{
+	int ret;
+
+	ret = -ERESTARTSYS;
+	lock_kernel();
+	if (down_interruptible(PIPE_SEM(*inode)))
+		goto err_nolock_nocleanup;
+
+	if (!inode->i_pipe) {
+		ret = -ENOMEM;
+		if(!pipe_new(inode))
+			goto err_nocleanup;
+	}
+	filp->f_version = 0;
+
+	switch (filp->f_mode) {
+	case 1:
+	/*
+	 *  O_RDONLY
+	 *  POSIX.1 says that O_NONBLOCK means return with the FIFO
+	 *  opened, even when there is no process writing the FIFO.
+	 */
+		filp->f_op = &read_fifo_fops;
+		PIPE_RCOUNTER(*inode)++;
+		if (PIPE_READERS(*inode)++ == 0)
+			wake_up_partner(inode);
+
+		if (!PIPE_WRITERS(*inode)) {
+			if ((filp->f_flags & O_NONBLOCK)) {
+				/* suppress POLLHUP until we have
+				 * seen a writer */
+				filp->f_version = PIPE_WCOUNTER(*inode);
+			} else 
+			{
+				wait_for_partner(inode, &PIPE_WCOUNTER(*inode));
+				if(signal_pending(current))
+					goto err_rd;
+			}
+		}
+		break;
+	
+	case 2:
+	/*
+	 *  O_WRONLY
+	 *  POSIX.1 says that O_NONBLOCK means return -1 with
+	 *  errno=ENXIO when there is no process reading the FIFO.
+	 */
+		ret = -ENXIO;
+		if ((filp->f_flags & O_NONBLOCK) && !PIPE_READERS(*inode))
+			goto err;
+
+		filp->f_op = &write_fifo_fops;
+		PIPE_WCOUNTER(*inode)++;
+		if (!PIPE_WRITERS(*inode)++)
+			wake_up_partner(inode);
+
+		if (!PIPE_READERS(*inode)) {
+			wait_for_partner(inode, &PIPE_RCOUNTER(*inode));
+			if (signal_pending(current))
+				goto err_wr;
+		}
+		break;
+	
+	case 3:
+	/*
+	 *  O_RDWR
+	 *  POSIX.1 leaves this case "undefined" when O_NONBLOCK is set.
+	 *  This implementation will NEVER block on a O_RDWR open, since
+	 *  the process can at least talk to itself.
+	 */
+		filp->f_op = &rdwr_fifo_fops;
+
+		PIPE_READERS(*inode)++;
+		PIPE_WRITERS(*inode)++;
+		PIPE_RCOUNTER(*inode)++;
+		PIPE_WCOUNTER(*inode)++;
+		if (PIPE_READERS(*inode) == 1 || PIPE_WRITERS(*inode) == 1)
+			wake_up_partner(inode);
+		break;
+
+	default:
+		ret = -EINVAL;
+		goto err;
+	}
+
+	/* Ok! */
+	up(PIPE_SEM(*inode));
+	unlock_kernel();
+	return 0;
+
+err_rd:
+	if (!--PIPE_READERS(*inode))
+		wake_up_interruptible(PIPE_WAIT(*inode));
+	ret = -ERESTARTSYS;
+	goto err;
+
+err_wr:
+	if (!--PIPE_WRITERS(*inode))
+		wake_up_interruptible(PIPE_WAIT(*inode));
+	ret = -ERESTARTSYS;
+	goto err;
+
+err:
+	if (!PIPE_READERS(*inode) && !PIPE_WRITERS(*inode)) {
+		struct pipe_inode_info *info = inode->i_pipe;
+		inode->i_pipe = NULL;
+		free_page((unsigned long)info->base);
+		kfree(info);
+	}
+
+err_nocleanup:
+	up(PIPE_SEM(*inode));
+
+err_nolock_nocleanup:
+	unlock_kernel();
+	return ret;
+}
+
+/*
+ * Dummy default file-operations: the only thing this does
+ * is contain the open that then fills in the correct operations
+ * depending on the access mode of the file...
+ */
+struct file_operations def_fifo_fops = {
+	open:		fifo_open,	/* will set read or write pipe_fops */
+};
diff --git a/fs/file.c b/fs/file.c
new file mode 100644
index 00000000000000..d3e4d3a3f212f1
--- /dev/null
+++ b/fs/file.c
@@ -0,0 +1,234 @@
+/*
+ *  linux/fs/file.c
+ *
+ *  Copyright (C) 1998-1999, Stephen Tweedie and Bill Hawes
+ *
+ *  Manage the dynamic fd arrays in the process files_struct.
+ */
+
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+
+#include <asm/bitops.h>
+
+
+/*
+ * Allocate an fd array, using kmalloc or vmalloc.
+ * Note: the array isn't cleared at allocation time.
+ */
+struct file ** alloc_fd_array(int num)
+{
+	struct file **new_fds;
+	int size = num * sizeof(struct file *);
+
+	if (size <= PAGE_SIZE)
+		new_fds = (struct file **) kmalloc(size, GFP_KERNEL);
+	else 
+		new_fds = (struct file **) vmalloc(size);
+	return new_fds;
+}
+
+void free_fd_array(struct file **array, int num)
+{
+	int size = num * sizeof(struct file *);
+
+	if (!array) {
+		printk(KERN_ERR "%s array = 0 (num = %d)\n",
+				__FUNCTION__, num);
+		return;
+	}
+
+	if (num <= NR_OPEN_DEFAULT) /* Don't free the embedded fd array! */
+		return;
+	else if (size <= PAGE_SIZE)
+		kfree(array);
+	else
+		vfree(array);
+}
+
+/*
+ * Expand the fd array in the files_struct.  Called with the files
+ * spinlock held for write.
+ */
+
+int expand_fd_array(struct files_struct *files, int nr)
+{
+	struct file **new_fds;
+	int error, nfds;
+
+	
+	error = -EMFILE;
+	if (files->max_fds >= NR_OPEN || nr >= NR_OPEN)
+		goto out;
+
+	nfds = files->max_fds;
+	write_unlock(&files->file_lock);
+
+	/* 
+	 * Expand to the max in easy steps, and keep expanding it until
+	 * we have enough for the requested fd array size. 
+	 */
+
+	do {
+#if NR_OPEN_DEFAULT < 256
+		if (nfds < 256)
+			nfds = 256;
+		else 
+#endif
+		if (nfds < (PAGE_SIZE / sizeof(struct file *)))
+			nfds = PAGE_SIZE / sizeof(struct file *);
+		else {
+			nfds = nfds * 2;
+			if (nfds > NR_OPEN)
+				nfds = NR_OPEN;
+		}
+	} while (nfds <= nr);
+
+	error = -ENOMEM;
+	new_fds = alloc_fd_array(nfds);
+	write_lock(&files->file_lock);
+	if (!new_fds)
+		goto out;
+
+	/* Copy the existing array and install the new pointer */
+
+	if (nfds > files->max_fds) {
+		struct file **old_fds;
+		int i;
+		
+		old_fds = xchg(&files->fd, new_fds);
+		i = xchg(&files->max_fds, nfds);
+
+		/* Don't copy/clear the array if we are creating a new
+		   fd array for fork() */
+		if (i) {
+			memcpy(new_fds, old_fds, i * sizeof(struct file *));
+			/* clear the remainder of the array */
+			memset(&new_fds[i], 0,
+			       (nfds-i) * sizeof(struct file *)); 
+
+			write_unlock(&files->file_lock);
+			free_fd_array(old_fds, i);
+			write_lock(&files->file_lock);
+		}
+	} else {
+		/* Somebody expanded the array while we slept ... */
+		write_unlock(&files->file_lock);
+		free_fd_array(new_fds, nfds);
+		write_lock(&files->file_lock);
+	}
+	error = 0;
+out:
+	return error;
+}
+
+/*
+ * Allocate an fdset array, using kmalloc or vmalloc.
+ * Note: the array isn't cleared at allocation time.
+ */
+fd_set * alloc_fdset(int num)
+{
+	fd_set *new_fdset;
+	int size = num / 8;
+
+	if (size <= PAGE_SIZE)
+		new_fdset = (fd_set *) kmalloc(size, GFP_KERNEL);
+	else
+		new_fdset = (fd_set *) vmalloc(size);
+	return new_fdset;
+}
+
+void free_fdset(fd_set *array, int num)
+{
+	int size = num / 8;
+
+	if (!array) {
+		printk(KERN_ERR "%s array = 0 (num = %d)\n",
+				__FUNCTION__, num);
+		return;
+	}
+	
+	if (num <= __FD_SETSIZE) /* Don't free an embedded fdset */
+		return;
+	else if (size <= PAGE_SIZE)
+		kfree(array);
+	else
+		vfree(array);
+}
+
+/*
+ * Expand the fdset in the files_struct.  Called with the files spinlock
+ * held for write.
+ */
+int expand_fdset(struct files_struct *files, int nr)
+{
+	fd_set *new_openset = 0, *new_execset = 0;
+	int error, nfds = 0;
+
+	error = -EMFILE;
+	if (files->max_fdset >= NR_OPEN || nr >= NR_OPEN)
+		goto out;
+
+	nfds = files->max_fdset;
+	write_unlock(&files->file_lock);
+
+	/* Expand to the max in easy steps */
+	do {
+		if (nfds < (PAGE_SIZE * 8))
+			nfds = PAGE_SIZE * 8;
+		else {
+			nfds = nfds * 2;
+			if (nfds > NR_OPEN)
+				nfds = NR_OPEN;
+		}
+	} while (nfds <= nr);
+
+	error = -ENOMEM;
+	new_openset = alloc_fdset(nfds);
+	new_execset = alloc_fdset(nfds);
+	write_lock(&files->file_lock);
+	if (!new_openset || !new_execset)
+		goto out;
+
+	error = 0;
+	
+	/* Copy the existing tables and install the new pointers */
+	if (nfds > files->max_fdset) {
+		int i = files->max_fdset / (sizeof(unsigned long) * 8);
+		int count = (nfds - files->max_fdset) / 8;
+		
+		/* 
+		 * Don't copy the entire array if the current fdset is
+		 * not yet initialised.  
+		 */
+		if (i) {
+			memcpy (new_openset, files->open_fds, files->max_fdset/8);
+			memcpy (new_execset, files->close_on_exec, files->max_fdset/8);
+			memset (&new_openset->fds_bits[i], 0, count);
+			memset (&new_execset->fds_bits[i], 0, count);
+		}
+		
+		nfds = xchg(&files->max_fdset, nfds);
+		new_openset = xchg(&files->open_fds, new_openset);
+		new_execset = xchg(&files->close_on_exec, new_execset);
+		write_unlock(&files->file_lock);
+		free_fdset (new_openset, nfds);
+		free_fdset (new_execset, nfds);
+		write_lock(&files->file_lock);
+		return 0;
+	} 
+	/* Somebody expanded the array while we slept ... */
+
+out:
+	write_unlock(&files->file_lock);
+	if (new_openset)
+		free_fdset(new_openset, nfds);
+	if (new_execset)
+		free_fdset(new_execset, nfds);
+	write_lock(&files->file_lock);
+	return error;
+}
+
diff --git a/fs/file_table.c b/fs/file_table.c
new file mode 100644
index 00000000000000..ee0e4635d93ef6
--- /dev/null
+++ b/fs/file_table.c
@@ -0,0 +1,205 @@
+/*
+ *  linux/fs/file_table.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *  Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
+ */
+
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/file.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/smp_lock.h>
+#include <linux/iobuf.h>
+
+/* sysctl tunables... */
+struct files_stat_struct files_stat = {0, 0, NR_FILE};
+
+/* Here the new files go */
+static LIST_HEAD(anon_list);
+/* And here the free ones sit */
+static LIST_HEAD(free_list);
+/* public *and* exported. Not pretty! */
+spinlock_t files_lock = SPIN_LOCK_UNLOCKED;
+
+/* Find an unused file structure and return a pointer to it.
+ * Returns NULL, if there are no more free file structures or
+ * we run out of memory.
+ *
+ * SMP-safe.
+ */
+struct file * get_empty_filp(void)
+{
+	static int old_max = 0;
+	struct file * f;
+
+	file_list_lock();
+	if (files_stat.nr_free_files > NR_RESERVED_FILES) {
+	used_one:
+		f = list_entry(free_list.next, struct file, f_list);
+		list_del(&f->f_list);
+		files_stat.nr_free_files--;
+	new_one:
+		memset(f, 0, sizeof(*f));
+		atomic_set(&f->f_count,1);
+		f->f_version = ++event;
+		f->f_uid = current->fsuid;
+		f->f_gid = current->fsgid;
+		f->f_maxcount = INT_MAX;
+		list_add(&f->f_list, &anon_list);
+		file_list_unlock();
+		return f;
+	}
+	/*
+	 * Use a reserved one if we're the superuser
+	 */
+	if (files_stat.nr_free_files && !current->euid)
+		goto used_one;
+	/*
+	 * Allocate a new one if we're below the limit.
+	 */
+	if (files_stat.nr_files < files_stat.max_files) {
+		file_list_unlock();
+		f = kmem_cache_alloc(filp_cachep, SLAB_KERNEL);
+		file_list_lock();
+		if (f) {
+			files_stat.nr_files++;
+			goto new_one;
+		}
+		/* Big problems... */
+		printk(KERN_WARNING "VFS: filp allocation failed\n");
+
+	} else if (files_stat.max_files > old_max) {
+		printk(KERN_INFO "VFS: file-max limit %d reached\n", files_stat.max_files);
+		old_max = files_stat.max_files;
+	}
+	file_list_unlock();
+	return NULL;
+}
+
+/*
+ * Clear and initialize a (private) struct file for the given dentry,
+ * and call the open function (if any).  The caller must verify that
+ * inode->i_fop is not NULL.
+ */
+int init_private_file(struct file *filp, struct dentry *dentry, int mode)
+{
+	memset(filp, 0, sizeof(*filp));
+	filp->f_mode   = mode;
+	atomic_set(&filp->f_count, 1);
+	filp->f_dentry = dentry;
+	filp->f_uid    = current->fsuid;
+	filp->f_gid    = current->fsgid;
+	filp->f_op     = dentry->d_inode->i_fop;
+	filp->f_maxcount = INT_MAX;
+
+	if (filp->f_op->open)
+		return filp->f_op->open(dentry->d_inode, filp);
+	else
+		return 0;
+}
+
+void fastcall fput(struct file * file)
+{
+	struct dentry * dentry = file->f_dentry;
+	struct vfsmount * mnt = file->f_vfsmnt;
+	struct inode * inode = dentry->d_inode;
+
+	if (atomic_dec_and_test(&file->f_count)) {
+		locks_remove_flock(file);
+
+		if (file->f_iobuf)
+			free_kiovec(1, &file->f_iobuf);
+
+		if (file->f_op && file->f_op->release)
+			file->f_op->release(inode, file);
+		fops_put(file->f_op);
+		if (file->f_mode & FMODE_WRITE)
+			put_write_access(inode);
+		file_list_lock();
+		file->f_dentry = NULL;
+		file->f_vfsmnt = NULL;
+		list_del(&file->f_list);
+		list_add(&file->f_list, &free_list);
+		files_stat.nr_free_files++;
+		file_list_unlock();
+		dput(dentry);
+		mntput(mnt);
+	}
+}
+
+struct file fastcall *fget(unsigned int fd)
+{
+	struct file * file;
+	struct files_struct *files = current->files;
+
+	read_lock(&files->file_lock);
+	file = fcheck(fd);
+	if (file)
+		get_file(file);
+	read_unlock(&files->file_lock);
+	return file;
+}
+
+/* Here. put_filp() is SMP-safe now. */
+
+void put_filp(struct file *file)
+{
+	if(atomic_dec_and_test(&file->f_count)) {
+		file_list_lock();
+		list_del(&file->f_list);
+		list_add(&file->f_list, &free_list);
+		files_stat.nr_free_files++;
+		file_list_unlock();
+	}
+}
+
+void file_move(struct file *file, struct list_head *list)
+{
+	if (!list)
+		return;
+	file_list_lock();
+	list_del(&file->f_list);
+	list_add(&file->f_list, list);
+	file_list_unlock();
+}
+
+int fs_may_remount_ro(struct super_block *sb)
+{
+	struct list_head *p;
+
+	/* Check that no files are currently opened for writing. */
+	file_list_lock();
+	for (p = sb->s_files.next; p != &sb->s_files; p = p->next) {
+		struct file *file = list_entry(p, struct file, f_list);
+		struct inode *inode = file->f_dentry->d_inode;
+
+		/* File with pending delete? */
+		if (inode->i_nlink == 0)
+			goto too_bad;
+
+		/* Writable file? */
+		if (S_ISREG(inode->i_mode) && (file->f_mode & FMODE_WRITE))
+			goto too_bad;
+	}
+	file_list_unlock();
+	return 1; /* Tis' cool bro. */
+too_bad:
+	file_list_unlock();
+	return 0;
+}
+
+void __init files_init(unsigned long mempages)
+{ 
+	int n; 
+	/* One file with associated inode and dcache is very roughly 1K. 
+	 * Per default don't use more than 10% of our memory for files. 
+	 */ 
+
+	n = (mempages * (PAGE_SIZE / 1024)) / 10;
+	files_stat.max_files = n; 
+	if (files_stat.max_files < NR_FILE)
+		files_stat.max_files = NR_FILE;
+} 
+
diff --git a/fs/filesystems.c b/fs/filesystems.c
new file mode 100644
index 00000000000000..87774532f489b7
--- /dev/null
+++ b/fs/filesystems.c
@@ -0,0 +1,40 @@
+/*
+ *  linux/fs/filesystems.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  nfsservctl system-call when nfsd is not compiled in.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/smp_lock.h>
+#include <linux/kmod.h>
+#include <linux/nfsd/interface.h>
+
+#if ! defined(CONFIG_NFSD)
+struct nfsd_linkage *nfsd_linkage;
+
+long
+asmlinkage sys_nfsservctl(int cmd, void *argp, void *resp)
+{
+	int ret = -ENOSYS;
+	
+#if defined(CONFIG_MODULES)
+	lock_kernel();
+
+	if (nfsd_linkage ||
+	    (request_module ("nfsd") == 0 && nfsd_linkage)) {
+		__MOD_INC_USE_COUNT(nfsd_linkage->owner);
+		unlock_kernel();
+		ret = nfsd_linkage->do_nfsservctl(cmd, argp, resp);
+		__MOD_DEC_USE_COUNT(nfsd_linkage->owner);
+	} else
+		unlock_kernel();
+#endif
+	return ret;
+}
+EXPORT_SYMBOL(nfsd_linkage);
+
+#endif /* CONFIG_NFSD */
diff --git a/fs/freevxfs/Makefile b/fs/freevxfs/Makefile
new file mode 100644
index 00000000000000..593cb7be23aac0
--- /dev/null
+++ b/fs/freevxfs/Makefile
@@ -0,0 +1,11 @@
+#
+# VxFS Makefile
+#
+
+O_TARGET :=	freevxfs.o
+
+obj-y :=	vxfs_bmap.o vxfs_fshead.o vxfs_immed.o vxfs_inode.o \
+		vxfs_lookup.o vxfs_olt.o vxfs_subr.o vxfs_super.o
+obj-m :=	$(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/freevxfs/vxfs.h b/fs/freevxfs/vxfs.h
new file mode 100644
index 00000000000000..3811dc5e5099b9
--- /dev/null
+++ b/fs/freevxfs/vxfs.h
@@ -0,0 +1,266 @@
+/*
+ * Copyright (c) 2000-2001 Christoph Hellwig.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL").
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+#ifndef _VXFS_SUPER_H_
+#define _VXFS_SUPER_H_
+
+#ident "$Id: vxfs.h 1.12 2001/12/28 19:48:03 hch Exp $"
+
+/*
+ * Veritas filesystem driver - superblock structure.
+ *
+ * This file contains the definition of the disk and core
+ * superblocks of the Veritas Filesystem.
+ */
+#include <linux/types.h>
+#include "vxfs_kcompat.h"
+
+
+/*
+ * Data types for use with the VxFS ondisk format.
+ */
+typedef	int32_t		vx_daddr_t;
+typedef int32_t		vx_ino_t;
+
+/*
+ * Superblock magic number (vxfs_super->vs_magic).
+ */
+#define VXFS_SUPER_MAGIC	0xa501FCF5
+
+/*
+ * The root inode.
+ */
+#define VXFS_ROOT_INO		2
+
+/*
+ * Num of entries in free extent array
+ */
+#define VXFS_NEFREE		32
+
+
+/*
+ * VxFS superblock (disk).
+ */
+struct vxfs_sb {
+	/*
+	 * Readonly fields for the version 1 superblock.
+	 *
+	 * Lots of this fields are no more used by version 2
+	 * and never filesystems.
+	 */
+	u_int32_t	vs_magic;		/* Magic number */
+	int32_t		vs_version;		/* VxFS version */
+	u_int32_t	vs_ctime;		/* create time - secs */
+	u_int32_t	vs_cutime;		/* create time - usecs */
+	int32_t		__unused1;		/* unused */
+	int32_t		__unused2;		/* unused */
+	vx_daddr_t	vs_old_logstart;	/* obsolete */
+	vx_daddr_t	vs_old_logend;		/* obsolete */
+	int32_t		vs_bsize;		/* block size */
+	int32_t		vs_size;		/* number of blocks */
+	int32_t		vs_dsize;		/* number of data blocks */
+	u_int32_t	vs_old_ninode;		/* obsolete */
+	int32_t		vs_old_nau;		/* obsolete */
+	int32_t		__unused3;		/* unused */
+	int32_t		vs_old_defiextsize;	/* obsolete */
+	int32_t		vs_old_ilbsize;		/* obsolete */
+	int32_t		vs_immedlen;		/* size of immediate data area */
+	int32_t		vs_ndaddr;		/* number of direct extentes */
+	vx_daddr_t	vs_firstau;		/* address of first AU */
+	vx_daddr_t	vs_emap;		/* offset of extent map in AU */
+	vx_daddr_t	vs_imap;		/* offset of inode map in AU */
+	vx_daddr_t	vs_iextop;		/* offset of ExtOp. map in AU */
+	vx_daddr_t	vs_istart;		/* offset of inode list in AU */
+	vx_daddr_t	vs_bstart;		/* offset of fdblock in AU */
+	vx_daddr_t	vs_femap;		/* aufirst + emap */
+	vx_daddr_t	vs_fimap;		/* aufirst + imap */
+	vx_daddr_t	vs_fiextop;		/* aufirst + iextop */
+	vx_daddr_t	vs_fistart;		/* aufirst + istart */
+	vx_daddr_t	vs_fbstart;		/* aufirst + bstart */
+	int32_t		vs_nindir;		/* number of entries in indir */
+	int32_t		vs_aulen;		/* length of AU in blocks */
+	int32_t		vs_auimlen;		/* length of imap in blocks */
+	int32_t		vs_auemlen;		/* length of emap in blocks */
+	int32_t		vs_auilen;		/* length of ilist in blocks */
+	int32_t		vs_aupad;		/* length of pad in blocks */
+	int32_t		vs_aublocks;		/* data blocks in AU */
+	int32_t		vs_maxtier;		/* log base 2 of aublocks */
+	int32_t		vs_inopb;		/* number of inodes per blk */
+	int32_t		vs_old_inopau;		/* obsolete */
+	int32_t		vs_old_inopilb;		/* obsolete */
+	int32_t		vs_old_ndiripau;	/* obsolete */
+	int32_t		vs_iaddrlen;		/* size of indirect addr ext. */
+	int32_t		vs_bshift;		/* log base 2 of bsize */
+	int32_t		vs_inoshift;		/* log base 2 of inobp */
+	int32_t		vs_bmask;		/* ~( bsize - 1 ) */
+	int32_t		vs_boffmask;		/* bsize - 1 */
+	int32_t		vs_old_inomask;		/* old_inopilb - 1 */
+	int32_t		vs_checksum;		/* checksum of V1 data */
+	
+	/*
+	 * Version 1, writable
+	 */
+	int32_t		vs_free;		/* number of free blocks */
+	int32_t		vs_ifree;		/* number of free inodes */
+	int32_t		vs_efree[VXFS_NEFREE];	/* number of free extents by size */
+	int32_t		vs_flags;		/* flags ?!? */
+	u_int8_t	vs_mod;			/* filesystem has been changed */
+	u_int8_t	vs_clean;		/* clean FS */
+	u_int16_t	__unused4;		/* unused */
+	u_int32_t	vs_firstlogid;		/* mount time log ID */
+	u_int32_t	vs_wtime;		/* last time written - sec */
+	u_int32_t	vs_wutime;		/* last time written - usec */
+	u_int8_t	vs_fname[6];		/* FS name */
+	u_int8_t	vs_fpack[6];		/* FS pack name */
+	int32_t		vs_logversion;		/* log format version */
+	int32_t		__unused5;		/* unused */
+	
+	/*
+	 * Version 2, Read-only
+	 */
+	vx_daddr_t	vs_oltext[2];		/* OLT extent and replica */
+	int32_t		vs_oltsize;		/* OLT extent size */
+	int32_t		vs_iauimlen;		/* size of inode map */
+	int32_t		vs_iausize;		/* size of IAU in blocks */
+	int32_t		vs_dinosize;		/* size of inode in bytes */
+	int32_t		vs_old_dniaddr;		/* indir levels per inode */
+	int32_t		vs_checksum2;		/* checksum of V2 RO */
+
+	/*
+	 * Actually much more...
+	 */
+};
+
+
+/*
+ * In core superblock filesystem private data for VxFS.
+ */
+struct vxfs_sb_info {
+	struct vxfs_sb		*vsi_raw;	/* raw (on disk) supeblock */
+	struct buffer_head	*vsi_bp;	/* buffer for raw superblock*/
+	struct inode		*vsi_fship;	/* fileset header inode */
+	struct inode		*vsi_ilist;	/* inode list inode */
+	struct inode		*vsi_stilist;	/* structual inode list inode */
+	u_long			vsi_iext;	/* initial inode list */
+	ino_t			vsi_fshino;	/* fileset header inode */
+	daddr_t			vsi_oltext;	/* OLT extent */
+	daddr_t			vsi_oltsize;	/* OLT size */
+};
+
+
+/*
+ * File modes.  File types above 0xf000 are vxfs internal only, they should
+ * not be passed back to higher levels of the system.  vxfs file types must
+ * never have one of the regular file type bits set.
+ */
+enum vxfs_mode {
+	VXFS_ISUID = 0x00000800,	/* setuid */
+	VXFS_ISGID = 0x00000400,	/* setgid */
+	VXFS_ISVTX = 0x00000200,	/* sticky bit */
+	VXFS_IREAD = 0x00000100,	/* read */
+	VXFS_IWRITE = 0x00000080,	/* write */
+	VXFS_IEXEC = 0x00000040,	/* exec */
+
+	VXFS_IFIFO = 0x00001000,	/* Named pipe */
+	VXFS_IFCHR = 0x00002000,	/* Character device */
+	VXFS_IFDIR = 0x00004000,	/* Directory */
+	VXFS_IFNAM = 0x00005000,	/* Xenix device ?? */
+	VXFS_IFBLK = 0x00006000,	/* Block device */
+	VXFS_IFREG = 0x00008000,	/* Regular file */
+	VXFS_IFCMP = 0x00009000,	/* Compressed file ?!? */
+	VXFS_IFLNK = 0x0000a000,	/* Symlink */
+	VXFS_IFSOC = 0x0000c000,	/* Socket */
+
+	/* VxFS internal */
+	VXFS_IFFSH = 0x10000000,	/* Fileset header */
+	VXFS_IFILT = 0x20000000,	/* Inode list */
+	VXFS_IFIAU = 0x30000000,	/* Inode allocation unit */
+	VXFS_IFCUT = 0x40000000,	/* Current usage table */
+	VXFS_IFATT = 0x50000000,	/* Attr. inode */
+	VXFS_IFLCT = 0x60000000,	/* Link count table */
+	VXFS_IFIAT = 0x70000000,	/* Indirect attribute file */
+	VXFS_IFEMR = 0x80000000,	/* Extent map reorg file */
+	VXFS_IFQUO = 0x90000000,	/* BSD quota file */
+	VXFS_IFPTI = 0xa0000000,	/* "Pass through" inode */
+	VXFS_IFLAB = 0x11000000,	/* Device label file */
+	VXFS_IFOLT = 0x12000000,	/* OLT file */
+	VXFS_IFLOG = 0x13000000,	/* Log file */
+	VXFS_IFEMP = 0x14000000,	/* Extent map file */
+	VXFS_IFEAU = 0x15000000,	/* Extent AU file */
+	VXFS_IFAUS = 0x16000000,	/* Extent AU summary file */
+	VXFS_IFDEV = 0x17000000,	/* Device config file */
+
+};
+
+#define	VXFS_TYPE_MASK		0xfffff000
+
+#define VXFS_IS_TYPE(ip,type)	(((ip)->vii_mode & VXFS_TYPE_MASK) == (type))
+#define VXFS_ISFIFO(x)		VXFS_IS_TYPE((x),VXFS_IFIFO)
+#define VXFS_ISCHR(x)		VXFS_IS_TYPE((x),VXFS_IFCHR)
+#define VXFS_ISDIR(x)		VXFS_IS_TYPE((x),VXFS_IFDIR)
+#define VXFS_ISNAM(x)		VXFS_IS_TYPE((x),VXFS_IFNAM)
+#define VXFS_ISBLK(x)		VXFS_IS_TYPE((x),VXFS_IFBLK)
+#define VXFS_ISLNK(x)		VXFS_IS_TYPE((x),VXFS_IFLNK)
+#define VXFS_ISREG(x)		VXFS_IS_TYPE((x),VXFS_IFREG)
+#define VXFS_ISCMP(x)		VXFS_IS_TYPE((x),VXFS_IFCMP)
+#define VXFS_ISSOC(x)		VXFS_IS_TYPE((x),VXFS_IFSOC)
+
+#define VXFS_ISFSH(x)		VXFS_IS_TYPE((x),VXFS_IFFSH)
+#define VXFS_ISILT(x)		VXFS_IS_TYPE((x),VXFS_IFILT)
+
+/*
+ * Inmode organisation types.
+ */
+enum {
+	VXFS_ORG_NONE	= 0,	/* Inode has *no* format ?!? */
+	VXFS_ORG_EXT4	= 1,	/* Ext4 */
+	VXFS_ORG_IMMED	= 2,	/* All data stored in inode */
+	VXFS_ORG_TYPED	= 3,	/* Typed extents */
+};
+
+#define VXFS_IS_ORG(ip,org)	((ip)->vii_orgtype == (org))
+#define VXFS_ISNONE(ip)		VXFS_IS_ORG((ip), VXFS_ORG_NONE)
+#define VXFS_ISEXT4(ip)		VXFS_IS_ORG((ip), VXFS_ORG_EXT4)
+#define VXFS_ISIMMED(ip)	VXFS_IS_ORG((ip), VXFS_ORG_IMMED)
+#define VXFS_ISTYPED(ip)	VXFS_IS_ORG((ip), VXFS_ORG_TYPED)
+
+
+/*
+ * Get filesystem private data from VFS inode.
+ */
+#define VXFS_INO(ip) \
+	((struct vxfs_inode_info *)(ip)->u.generic_ip)
+
+/*
+ * Get filesystem private data from VFS superblock.
+ */
+#define VXFS_SBI(sbp) \
+	((struct vxfs_sb_info *)(sbp)->u.generic_sbp)
+
+#endif /* _VXFS_SUPER_H_ */
diff --git a/fs/freevxfs/vxfs_bmap.c b/fs/freevxfs/vxfs_bmap.c
new file mode 100644
index 00000000000000..ed31e0a06843c7
--- /dev/null
+++ b/fs/freevxfs/vxfs_bmap.c
@@ -0,0 +1,277 @@
+/*
+ * Copyright (c) 2000-2001 Christoph Hellwig.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL").
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ident "$Id: vxfs_bmap.c,v 1.25 2002/01/02 23:36:55 hch Exp hch $"
+
+/*
+ * Veritas filesystem driver - filesystem to disk block mapping.
+ */
+#include <linux/fs.h>
+#include <linux/kernel.h>
+
+#include "vxfs.h"
+#include "vxfs_inode.h"
+
+
+#ifdef DIAGNOSTIC
+static void
+vxfs_typdump(struct vxfs_typed *typ)
+{
+	printk(KERN_DEBUG "type=%Lu ", typ->vt_hdr >> VXFS_TYPED_TYPESHIFT);
+	printk("offset=%Lx ", typ->vt_hdr & VXFS_TYPED_OFFSETMASK);
+	printk("block=%x ", typ->vt_block);
+	printk("size=%x\n", typ->vt_size);
+}
+#endif
+
+/**
+ * vxfs_bmap_ext4 - do bmap for ext4 extents
+ * @ip:		pointer to the inode we do bmap for
+ * @iblock:	logical block.
+ *
+ * Description:
+ *   vxfs_bmap_ext4 performs the bmap operation for inodes with
+ *   ext4-style extents (which are much like the traditional UNIX
+ *   inode organisation).
+ *
+ * Returns:
+ *   The physical block number on success, else Zero.
+ */
+static daddr_t
+vxfs_bmap_ext4(struct inode *ip, long bn)
+{
+	struct super_block *sb = ip->i_sb;
+	struct vxfs_inode_info *vip = VXFS_INO(ip);
+	unsigned long bsize = sb->s_blocksize;
+	u32 indsize = vip->vii_ext4.ve4_indsize;
+	int i;
+
+	if (indsize > sb->s_blocksize)
+		goto fail_size;
+
+	for (i = 0; i < VXFS_NDADDR; i++) {
+		struct direct *d = vip->vii_ext4.ve4_direct + i;
+		if (bn >= 0 && bn < d->size)
+			return (bn + d->extent);
+		bn -= d->size;
+	}
+
+	if ((bn / (indsize * indsize * bsize / 4)) == 0) {
+		struct buffer_head *buf;
+		daddr_t	bno;
+		u32 *indir;
+
+		buf = sb_bread(sb, vip->vii_ext4.ve4_indir[0]);
+		if (!buf || !buffer_mapped(buf))
+			goto fail_buf;
+
+		indir = (u32 *)buf->b_data;
+		bno = indir[(bn/indsize) % (indsize*bn)] + (bn%indsize);
+
+		brelse(buf);
+		return bno;
+	} else
+		printk(KERN_WARNING "no matching indir?");
+
+	return 0;
+
+fail_size:
+	printk("vxfs: indirect extent to big!\n");
+fail_buf:
+	return 0;
+}
+
+/**
+ * vxfs_bmap_indir - recursion for vxfs_bmap_typed
+ * @ip:		pointer to the inode we do bmap for
+ * @indir:	indirect block we start reading at
+ * @size:	size of the typed area to search
+ * @block:	partially result from further searches
+ *
+ * Description:
+ *   vxfs_bmap_indir reads a &struct vxfs_typed at @indir
+ *   and performs the type-defined action.
+ *
+ * Return Value:
+ *   The physical block number on success, else Zero.
+ *
+ * Note:
+ *   Kernelstack is rare.  Unrecurse?
+ */
+static daddr_t
+vxfs_bmap_indir(struct inode *ip, long indir, int size, long block)
+{
+	struct buffer_head		*bp = NULL;
+	daddr_t				pblock = 0;
+	int				i;
+
+	for (i = 0; i < size * VXFS_TYPED_PER_BLOCK(ip->i_sb); i++) {
+		struct vxfs_typed	*typ;
+		int64_t			off;
+
+		bp = sb_bread(ip->i_sb,
+				indir + (i / VXFS_TYPED_PER_BLOCK(ip->i_sb)));
+		if (!buffer_mapped(bp))
+			return 0;
+
+		typ = ((struct vxfs_typed *)bp->b_data) +
+			(i % VXFS_TYPED_PER_BLOCK(ip->i_sb));
+		off = (typ->vt_hdr & VXFS_TYPED_OFFSETMASK);
+
+		if (block < off) {
+			brelse(bp);
+			continue;
+		}
+
+		switch ((u_int32_t)(typ->vt_hdr >> VXFS_TYPED_TYPESHIFT)) {
+		case VXFS_TYPED_INDIRECT:
+			pblock = vxfs_bmap_indir(ip, typ->vt_block,
+					typ->vt_size, block - off);
+			if (pblock == -2)
+				break;
+			goto out;
+		case VXFS_TYPED_DATA:
+			if ((block - off) >= typ->vt_size)
+				break;
+			pblock = (typ->vt_block + block - off);
+			goto out;
+		case VXFS_TYPED_INDIRECT_DEV4:
+		case VXFS_TYPED_DATA_DEV4: {
+			struct vxfs_typed_dev4	*typ4 =
+				(struct vxfs_typed_dev4 *)typ;
+
+			printk(KERN_INFO "\n\nTYPED_DEV4 detected!\n");
+			printk(KERN_INFO "block: %Lu\tsize: %Ld\tdev: %d\n",
+				typ4->vd4_block, typ4->vd4_size, typ4->vd4_dev);
+			goto fail;
+		}
+		default:
+			BUG();
+		}
+		brelse(bp);
+	}
+
+fail:
+	pblock = 0;
+out:
+	brelse(bp);
+	return (pblock);
+}
+
+/**
+ * vxfs_bmap_typed - bmap for typed extents
+ * @ip:		pointer to the inode we do bmap for
+ * @iblock:	logical block
+ *
+ * Description:
+ *   Performs the bmap operation for typed extents.
+ *
+ * Return Value:
+ *   The physical block number on success, else Zero.
+ */
+static daddr_t
+vxfs_bmap_typed(struct inode *ip, long iblock)
+{
+	struct vxfs_inode_info		*vip = VXFS_INO(ip);
+	daddr_t				pblock = 0;
+	int				i;
+
+	for (i = 0; i < VXFS_NTYPED; i++) {
+		struct vxfs_typed	*typ = vip->vii_org.typed + i;
+		int64_t			off = (typ->vt_hdr & VXFS_TYPED_OFFSETMASK);
+
+#ifdef DIAGNOSTIC
+		vxfs_typdump(typ);
+#endif
+		if (iblock < off)
+			continue;
+		switch ((u_int32_t)(typ->vt_hdr >> VXFS_TYPED_TYPESHIFT)) {
+		case VXFS_TYPED_INDIRECT:
+			pblock = vxfs_bmap_indir(ip, typ->vt_block,
+					typ->vt_size, iblock - off);
+			if (pblock == -2)
+				break;
+			return (pblock);
+		case VXFS_TYPED_DATA:
+			if ((iblock - off) < typ->vt_size)
+				return (typ->vt_block + iblock - off);
+			break;
+		case VXFS_TYPED_INDIRECT_DEV4:
+		case VXFS_TYPED_DATA_DEV4: {
+			struct vxfs_typed_dev4	*typ4 =
+				(struct vxfs_typed_dev4 *)typ;
+
+			printk(KERN_INFO "\n\nTYPED_DEV4 detected!\n");
+			printk(KERN_INFO "block: %Lu\tsize: %Ld\tdev: %d\n",
+				typ4->vd4_block, typ4->vd4_size, typ4->vd4_dev);
+			return 0;
+		}
+		default:
+			BUG();
+		}
+	}
+
+	return 0;
+}
+
+/**
+ * vxfs_bmap1 - vxfs-internal bmap operation
+ * @ip:			pointer to the inode we do bmap for
+ * @iblock:		logical block
+ *
+ * Description:
+ *   vxfs_bmap1 perfoms a logical to physical block mapping
+ *   for vxfs-internal purposes.
+ *
+ * Return Value:
+ *   The physical block number on success, else Zero.
+ */
+daddr_t
+vxfs_bmap1(struct inode *ip, long iblock)
+{
+	struct vxfs_inode_info		*vip = VXFS_INO(ip);
+
+	if (VXFS_ISEXT4(vip))
+		return vxfs_bmap_ext4(ip, iblock);
+	if (VXFS_ISTYPED(vip))
+		return vxfs_bmap_typed(ip, iblock);
+	if (VXFS_ISNONE(vip))
+		goto unsupp;
+	if (VXFS_ISIMMED(vip))
+		goto unsupp;
+
+	printk(KERN_WARNING "vxfs: inode %ld has no valid orgtype (%x)\n",
+			ip->i_ino, vip->vii_orgtype);
+	BUG();
+
+unsupp:
+	printk(KERN_WARNING "vxfs: inode %ld has an unsupported orgtype (%x)\n",
+			ip->i_ino, vip->vii_orgtype);
+	return 0;
+}
diff --git a/fs/freevxfs/vxfs_dir.h b/fs/freevxfs/vxfs_dir.h
new file mode 100644
index 00000000000000..b4271e244b1327
--- /dev/null
+++ b/fs/freevxfs/vxfs_dir.h
@@ -0,0 +1,94 @@
+/*
+ * Copyright (c) 2000-2001 Christoph Hellwig.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL").
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+#ifndef _VXFS_DIR_H_
+#define _VXFS_DIR_H_
+
+#ident "$Id: vxfs_dir.h,v 1.7 2001/05/21 15:48:26 hch Exp hch $"
+
+/*
+ * Veritas filesystem driver - directory structure.
+ *
+ * This file contains the definition of the vxfs directory format.
+ */
+
+
+/*
+ * VxFS directory block header.
+ *
+ * This entry is the head of every filesystem block in a directory.
+ * It is used for free space managment and additionally includes
+ * a hash for speeding up directory search (lookup).
+ *
+ * The hash may be empty and in fact we do not use it all in the
+ * Linux driver for now.
+ */
+struct vxfs_dirblk {
+	u_int16_t	d_free;		/* free space in dirblock */
+	u_int16_t	d_nhash;	/* no of hash chains */
+	u_int16_t	d_hash[1];	/* hash chain */
+};
+
+/*
+ * VXFS_NAMELEN is the maximum length of the d_name field
+ *	of an VxFS directory entry.
+ */
+#define VXFS_NAMELEN	256
+
+/*
+ * VxFS directory entry.
+ */
+struct vxfs_direct {
+	vx_ino_t	d_ino;			/* inode number */
+	u_int16_t	d_reclen;		/* record length */
+	u_int16_t	d_namelen;		/* d_name length */
+	u_int16_t	d_hashnext;		/* next hash entry */
+	char		d_name[VXFS_NAMELEN];	/* name */
+};
+
+/*
+ * VXFS_DIRPAD defines the directory entry boundaries, is _must_ be
+ *	a multiple of four.
+ * VXFS_NAMEMIN is the length of a directory entry with a NULL d_name.
+ * VXFS_DIRROUND is an internal macros that rounds a length to a value
+ *	usable for directory sizes.
+ * VXFS_DIRLEN calculates the directory entry size for an entry with
+ *	a d_name with size len.
+ */
+#define VXFS_DIRPAD		4
+#define VXFS_NAMEMIN		((int)((struct vxfs_direct *)0)->d_name)
+#define VXFS_DIRROUND(len)	((VXFS_DIRPAD + (len) - 1) & ~(VXFS_DIRPAD -1))
+#define VXFS_DIRLEN(len)	(VXFS_DIRROUND(VXFS_NAMEMIN + (len)))
+
+/*
+ * VXFS_DIRBLKOV is the overhead of a specific dirblock.
+ */
+#define VXFS_DIRBLKOV(dbp)	((sizeof(short) * dbp->d_nhash) + 4)
+
+#endif /* _VXFS_DIR_H_ */
diff --git a/fs/freevxfs/vxfs_extern.h b/fs/freevxfs/vxfs_extern.h
new file mode 100644
index 00000000000000..f09eced5128252
--- /dev/null
+++ b/fs/freevxfs/vxfs_extern.h
@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2000-2001 Christoph Hellwig.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL").
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+#ifndef _VXFS_EXTERN_H_
+#define _VXFS_EXTERN_H_
+
+#ident "$Id: vxfs_extern.h,v 1.22 2001/12/28 20:50:47 hch Exp hch $"
+
+/*
+ * Veritas filesystem driver - external prototypes.
+ *
+ * This file contains prototypes for all vxfs functions used
+ * outside their respective source files.
+ */
+
+
+struct kmem_cache_s;
+struct super_block;
+struct vxfs_inode_info;
+struct inode;
+
+
+/* vxfs_bmap.c */
+extern daddr_t			vxfs_bmap1(struct inode *, long);
+
+/* vxfs_fshead.c */
+extern int			vxfs_read_fshead(struct super_block *);
+
+/* vxfs_inode.c */
+extern struct kmem_cache_s	*vxfs_inode_cachep;
+extern void			vxfs_dumpi(struct vxfs_inode_info *, ino_t);
+extern struct inode *		vxfs_get_fake_inode(struct super_block *,
+					struct vxfs_inode_info *);
+extern void			vxfs_put_fake_inode(struct inode *);
+extern struct vxfs_inode_info *	vxfs_blkiget(struct super_block *, u_long, ino_t);
+extern struct vxfs_inode_info *	vxfs_stiget(struct super_block *, ino_t);
+extern void			vxfs_read_inode(struct inode *);
+extern void			vxfs_put_inode(struct inode *);
+
+/* vxfs_lookup.c */
+extern struct inode_operations	vxfs_dir_inode_ops;
+extern struct file_operations	vxfs_dir_operations;
+
+/* vxfs_olt.c */
+extern int			vxfs_read_olt(struct super_block *, u_long);
+
+/* vxfs_subr.c */
+extern struct page *		vxfs_get_page(struct address_space *, u_long);
+extern void			vxfs_put_page(struct page *);
+extern struct buffer_head *	vxfs_bread(struct inode *, int);
+
+#endif /* _VXFS_EXTERN_H_ */
diff --git a/fs/freevxfs/vxfs_fshead.c b/fs/freevxfs/vxfs_fshead.c
new file mode 100644
index 00000000000000..faf0069126465d
--- /dev/null
+++ b/fs/freevxfs/vxfs_fshead.c
@@ -0,0 +1,171 @@
+/*
+ * Copyright (c) 2000-2001 Christoph Hellwig.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL").
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ident "$Id: vxfs_fshead.c,v 1.20 2002/01/02 22:02:12 hch Exp hch $"
+
+/*
+ * Veritas filesystem driver - fileset header routines.
+ */
+#include <linux/fs.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+
+#include "vxfs.h"
+#include "vxfs_inode.h"
+#include "vxfs_extern.h"
+#include "vxfs_fshead.h"
+
+
+#ifdef DIAGNOSTIC
+static void
+vxfs_dumpfsh(struct vxfs_fsh *fhp)
+{
+	printk("\n\ndumping fileset header:\n");
+	printk("----------------------------\n");
+	printk("version: %u\n", fhp->fsh_version);
+	printk("fsindex: %u\n", fhp->fsh_fsindex);
+	printk("iauino: %u\tninodes:%u\n",
+			fhp->fsh_iauino, fhp->fsh_ninodes);
+	printk("maxinode: %u\tlctino: %u\n",
+			fhp->fsh_maxinode, fhp->fsh_lctino);
+	printk("nau: %u\n", fhp->fsh_nau);
+	printk("ilistino[0]: %u\tilistino[1]: %u\n",
+			fhp->fsh_ilistino[0], fhp->fsh_ilistino[1]);
+}
+#endif
+
+/**
+ * vxfs_getfsh - read fileset header into memory
+ * @ip:		the (fake) fileset header inode
+ * @which:	0 for the structural, 1 for the primary fsh.
+ *
+ * Description:
+ *   vxfs_getfsh reads either the structural or primary fileset header
+ *   described by @ip into memory.
+ *
+ * Returns:
+ *   The fileset header structure on success, else Zero.
+ */
+static struct vxfs_fsh *
+vxfs_getfsh(struct inode *ip, int which)
+{
+	struct buffer_head		*bp;
+
+	bp = vxfs_bread(ip, which);
+	if (buffer_mapped(bp)) {
+		struct vxfs_fsh		*fhp;
+
+		if (!(fhp = kmalloc(sizeof(*fhp), SLAB_KERNEL)))
+			return NULL;
+		memcpy(fhp, bp->b_data, sizeof(*fhp));
+
+		brelse(bp);
+		return (fhp);
+	}
+
+	return NULL;
+}
+
+/**
+ * vxfs_read_fshead - read the fileset headers
+ * @sbp:	superblock to which the fileset belongs
+ *
+ * Description:
+ *   vxfs_read_fshead will fill the inode and structural inode list in @sb.
+ *
+ * Returns:
+ *   Zero on success, else a negative error code (-EINVAL).
+ */
+int
+vxfs_read_fshead(struct super_block *sbp)
+{
+	struct vxfs_sb_info		*infp = VXFS_SBI(sbp);
+	struct vxfs_fsh			*pfp, *sfp;
+	struct vxfs_inode_info		*vip, *tip;
+
+	if (!(vip = vxfs_blkiget(sbp, infp->vsi_iext, infp->vsi_fshino))) {
+		printk(KERN_ERR "vxfs: unabled to read fsh inode\n");
+		return -EINVAL;
+	} else if (!VXFS_ISFSH(vip)) {
+		printk(KERN_ERR "vxfs: fsh list inode is of wrong type (%x)\n",
+				vip->vii_mode & VXFS_TYPE_MASK); 
+		return -EINVAL;
+	}
+
+
+#ifdef DIAGNOSTIC
+	printk("vxfs: fsh inode dump:\n");
+	vxfs_dumpi(vip, infp->vsi_fshino);
+#endif
+
+	if (!(infp->vsi_fship = vxfs_get_fake_inode(sbp, vip))) {
+		printk(KERN_ERR "vxfs: unabled to get fsh inode\n");
+		return -EINVAL;
+	}
+
+	if (!(sfp = vxfs_getfsh(infp->vsi_fship, 0))) {
+		printk(KERN_ERR "vxfs: unabled to get structural fsh\n");
+		return -EINVAL;
+	} 
+
+#ifdef DIAGNOSTIC
+	vxfs_dumpfsh(sfp);
+#endif
+
+	if (!(pfp = vxfs_getfsh(infp->vsi_fship, 1))) {
+		printk(KERN_ERR "vxfs: unabled to get primary fsh\n");
+		return -EINVAL;
+	}
+
+#ifdef DIAGNOSTIC
+	vxfs_dumpfsh(pfp);
+#endif
+
+	tip = vxfs_blkiget(sbp, infp->vsi_iext, sfp->fsh_ilistino[0]);
+	if (!tip || ((infp->vsi_stilist = vxfs_get_fake_inode(sbp, tip)) == NULL)) {
+		printk(KERN_ERR "vxfs: unabled to get structual list inode\n");
+		return -EINVAL;
+	} else if (!VXFS_ISILT(VXFS_INO(infp->vsi_stilist))) {
+		printk(KERN_ERR "vxfs: structual list inode is of wrong type (%x)\n",
+				VXFS_INO(infp->vsi_stilist)->vii_mode & VXFS_TYPE_MASK); 
+		return -EINVAL;
+	}
+
+	tip = vxfs_stiget(sbp, pfp->fsh_ilistino[0]);
+	if (!tip || ((infp->vsi_ilist = vxfs_get_fake_inode(sbp, tip)) == NULL)) {
+		printk(KERN_ERR "vxfs: unabled to get inode list inode\n");
+		return -EINVAL;
+	} else if (!VXFS_ISILT(VXFS_INO(infp->vsi_ilist))) {
+		printk(KERN_ERR "vxfs: inode list inode is of wrong type (%x)\n",
+				VXFS_INO(infp->vsi_ilist)->vii_mode & VXFS_TYPE_MASK);
+		return -EINVAL;
+	}
+
+	return 0;
+}
diff --git a/fs/freevxfs/vxfs_fshead.h b/fs/freevxfs/vxfs_fshead.h
new file mode 100644
index 00000000000000..28fc5c6a586c74
--- /dev/null
+++ b/fs/freevxfs/vxfs_fshead.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2000-2001 Christoph Hellwig.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL").
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+#ifndef _VXFS_FSHEAD_H_
+#define _VXFS_FSHEAD_H_
+
+#ident "$Id: vxfs_fshead.h,v 1.7 2001/05/23 17:27:39 hch Exp hch $"
+
+/*
+ * Veritas filesystem driver - fileset header structures.
+ *
+ * This file contains the physical structure of the VxFS
+ * fileset header.
+ */
+
+
+/*
+ * Fileset header 
+ */
+struct vxfs_fsh {
+	u_int32_t	fsh_version;		/* fileset header version */
+	u_int32_t	fsh_fsindex;		/* fileset index */
+	u_int32_t	fsh_time;		/* modification time - sec */
+	u_int32_t	fsh_utime;		/* modification time - usec */
+	u_int32_t	fsh_extop;		/* extop flags */
+	vx_ino_t	fsh_ninodes;		/* allocated inodes */
+	u_int32_t	fsh_nau;		/* number of IAUs */
+	u_int32_t	fsh_old_ilesize;	/* old size of ilist */
+	u_int32_t	fsh_dflags;		/* flags */
+	u_int32_t	fsh_quota;		/* quota limit */
+	vx_ino_t	fsh_maxinode;		/* maximum inode number */
+	vx_ino_t	fsh_iauino;		/* IAU inode */
+	vx_ino_t	fsh_ilistino[2];	/* ilist inodes */
+	vx_ino_t	fsh_lctino;		/* link count table inode */
+
+	/*
+	 * Slightly more fields follow, but they
+	 *  a) are not of any interest for us, and
+	 *  b) differ a lot in different vxfs versions/ports
+	 */
+};
+
+#endif /* _VXFS_FSHEAD_H_ */
diff --git a/fs/freevxfs/vxfs_immed.c b/fs/freevxfs/vxfs_immed.c
new file mode 100644
index 00000000000000..a13e2605b6c40f
--- /dev/null
+++ b/fs/freevxfs/vxfs_immed.c
@@ -0,0 +1,138 @@
+/*
+ * Copyright (c) 2000-2001 Christoph Hellwig.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL").
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ident "$Id: vxfs_immed.c,v 1.10 2001/04/25 18:11:23 hch Exp hch $"
+
+/*
+ * Veritas filesystem driver - support for 'immed' inodes.
+ */
+#include <linux/fs.h>
+#include <linux/pagemap.h>
+
+#include "vxfs.h"
+#include "vxfs_inode.h"
+
+
+static int	vxfs_immed_readlink(struct dentry *, char *, int);
+static int	vxfs_immed_follow_link(struct dentry *, struct nameidata *);
+
+static int	vxfs_immed_readpage(struct file *, struct page *);
+
+/*
+ * Inode operations for immed symlinks.
+ *
+ * Unliked all other operations we do not go through the pagecache,
+ * but do all work directly on the inode.
+ */
+struct inode_operations vxfs_immed_symlink_iops = {
+	.readlink =		vxfs_immed_readlink,
+	.follow_link =		vxfs_immed_follow_link,
+};
+
+/*
+ * Adress space operations for immed files and directories.
+ */
+struct address_space_operations vxfs_immed_aops = {
+	.readpage =		vxfs_immed_readpage,
+};
+
+
+/**
+ * vxfs_immed_readlink - read immed symlink
+ * @dp:		dentry for the link
+ * @bp:		output buffer
+ * @buflen:	length of @bp
+ *
+ * Description:
+ *   vxfs_immed_readlink calls vfs_readlink to read the link
+ *   described by @dp into userspace.
+ *
+ * Returns:
+ *   Number of bytes successfully copied to userspace.
+ */
+static int
+vxfs_immed_readlink(struct dentry *dp, char *bp, int buflen)
+{
+	struct vxfs_inode_info		*vip = VXFS_INO(dp->d_inode);
+
+	return (vfs_readlink(dp, bp, buflen, vip->vii_immed.vi_immed));
+}
+
+/**
+ * vxfs_immed_follow_link - follow immed symlink
+ * @dp:		dentry for the link
+ * @np:		pathname lookup data for the current path walk
+ *
+ * Description:
+ *   vxfs_immed_follow_link restarts the pathname lookup with
+ *   the data obtained from @dp.
+ *
+ * Returns:
+ *   Zero on success, else a negative error code.
+ */
+static int
+vxfs_immed_follow_link(struct dentry *dp, struct nameidata *np)
+{
+	struct vxfs_inode_info		*vip = VXFS_INO(dp->d_inode);
+
+	return (vfs_follow_link(np, vip->vii_immed.vi_immed));
+}
+
+/**
+ * vxfs_immed_readpage - read part of an immed inode into pagecache
+ * @file:	file context (unused)
+ * @page:	page frame to fill in.
+ *
+ * Description:
+ *   vxfs_immed_readpage reads a part of the immed area of the
+ *   file that hosts @pp into the pagecache.
+ *
+ * Returns:
+ *   Zero on success, else a negative error code.
+ *
+ * Locking status:
+ *   @page is locked and will be unlocked.
+ */
+static int
+vxfs_immed_readpage(struct file *fp, struct page *pp)
+{
+	struct vxfs_inode_info	*vip = VXFS_INO(pp->mapping->host);
+	u_int64_t		offset = pp->index << PAGE_CACHE_SHIFT;
+	caddr_t			kaddr;
+
+	kaddr = kmap(pp);
+	memcpy(kaddr, vip->vii_immed.vi_immed + offset, PAGE_CACHE_SIZE);
+	kunmap(pp);
+	
+	flush_dcache_page(pp);
+	SetPageUptodate(pp);
+        UnlockPage(pp);
+
+	return 0;
+}
diff --git a/fs/freevxfs/vxfs_inode.c b/fs/freevxfs/vxfs_inode.c
new file mode 100644
index 00000000000000..98060cfd518927
--- /dev/null
+++ b/fs/freevxfs/vxfs_inode.c
@@ -0,0 +1,349 @@
+/*
+ * Copyright (c) 2000-2001 Christoph Hellwig.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL").
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ident "$Id: vxfs_inode.c,v 1.42 2002/01/02 23:51:36 hch Exp hch $"
+
+/*
+ * Veritas filesystem driver - inode routines.
+ */
+#include <linux/fs.h>
+#include <linux/pagemap.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+
+#include "vxfs.h"
+#include "vxfs_inode.h"
+#include "vxfs_extern.h"
+
+
+extern struct address_space_operations vxfs_aops;
+extern struct address_space_operations vxfs_immed_aops;
+
+extern struct inode_operations vxfs_immed_symlink_iops;
+
+static struct file_operations vxfs_file_operations = {
+	.open =			generic_file_open,
+	.llseek =		generic_file_llseek,
+	.read =			generic_file_read,
+	.mmap =			generic_file_mmap,
+};
+
+
+kmem_cache_t		*vxfs_inode_cachep;
+
+
+#ifdef DIAGNOSTIC
+/*
+ * Dump inode contents (partially).
+ */
+void
+vxfs_dumpi(struct vxfs_inode_info *vip, ino_t ino)
+{
+	printk(KERN_DEBUG "\n\n");
+	if (ino)
+		printk(KERN_DEBUG "dumping vxfs inode %ld\n", ino);
+	else
+		printk(KERN_DEBUG "dumping unknown vxfs inode\n");
+
+	printk(KERN_DEBUG "---------------------------\n");
+	printk(KERN_DEBUG "mode is %x\n", vip->vii_mode);
+	printk(KERN_DEBUG "nlink:%u, uid:%u, gid:%u\n",
+			vip->vii_nlink, vip->vii_uid, vip->vii_gid);
+	printk(KERN_DEBUG "size:%Lx, blocks:%u\n",
+			vip->vii_size, vip->vii_blocks);
+	printk(KERN_DEBUG "orgtype:%u\n", vip->vii_orgtype);
+}
+#endif
+
+
+/**
+ * vxfs_blkiget - find inode based on extent #
+ * @sbp:	superblock of the filesystem we search in
+ * @extent:	number of the extent to search
+ * @ino:	inode number to search
+ *
+ * Description:
+ *  vxfs_blkiget searches inode @ino in the filesystem described by
+ *  @sbp in the extent @extent.
+ *  Returns the matching VxFS inode on success, else a NULL pointer.
+ *
+ * NOTE:
+ *  While __vxfs_iget uses the pagecache vxfs_blkiget uses the
+ *  buffercache.  This function should not be used outside the
+ *  read_super() method, otherwise the data may be incoherent.
+ */
+struct vxfs_inode_info *
+vxfs_blkiget(struct super_block *sbp, u_long extent, ino_t ino)
+{
+	struct buffer_head		*bp;
+	u_long				block, offset;
+
+	block = extent + ((ino * VXFS_ISIZE) / sbp->s_blocksize);
+	offset = ((ino % (sbp->s_blocksize / VXFS_ISIZE)) * VXFS_ISIZE);
+	bp = sb_bread(sbp, block);
+
+	if (buffer_mapped(bp)) {
+		struct vxfs_inode_info	*vip;
+		struct vxfs_dinode	*dip;
+
+		if (!(vip = kmem_cache_alloc(vxfs_inode_cachep, SLAB_KERNEL)))
+			goto fail;
+		dip = (struct vxfs_dinode *)(bp->b_data + offset);
+		memcpy(vip, dip, sizeof(*vip));
+#ifdef DIAGNOSTIC
+		vxfs_dumpi(vip, ino);
+#endif
+		brelse(bp);
+		return (vip);
+	}
+
+fail:
+	printk(KERN_WARNING "vxfs: unable to read block %ld\n", block);
+	brelse(bp);
+	return NULL;
+}
+
+/**
+ * __vxfs_iget - generic find inode facility
+ * @sbp:		VFS superblock
+ * @ino:		inode number
+ * @ilistp:		inode list
+ *
+ * Description:
+ *  Search the for inode number @ino in the filesystem
+ *  described by @sbp.  Use the specified inode table (@ilistp).
+ *  Returns the matching VxFS inode on success, else a NULL pointer.
+ */
+static struct vxfs_inode_info *
+__vxfs_iget(ino_t ino, struct inode *ilistp)
+{
+	struct page			*pp;
+	u_long				offset;
+
+	offset = (ino % (PAGE_SIZE / VXFS_ISIZE)) * VXFS_ISIZE;
+	pp = vxfs_get_page(ilistp->i_mapping, ino * VXFS_ISIZE / PAGE_SIZE);
+
+	if (!IS_ERR(pp)) {
+		struct vxfs_inode_info	*vip;
+		struct vxfs_dinode	*dip;
+		caddr_t			kaddr = (char *)page_address(pp);
+
+		if (!(vip = kmem_cache_alloc(vxfs_inode_cachep, SLAB_KERNEL)))
+			goto fail;
+		dip = (struct vxfs_dinode *)(kaddr + offset);
+		memcpy(vip, dip, sizeof(*vip));
+#ifdef DIAGNOSTIC
+		vxfs_dumpi(vip, ino);
+#endif
+		vxfs_put_page(pp);
+		return (vip);
+	}
+
+	printk(KERN_WARNING "vxfs: error on page %p\n", pp);
+	return NULL;
+
+fail:
+	printk(KERN_WARNING "vxfs: unable to read inode %ld\n", ino);
+	vxfs_put_page(pp);
+	return NULL;
+}
+
+/**
+ * vxfs_stiget - find inode using the structural inode list
+ * @sbp:	VFS superblock
+ * @ino:	inode #
+ *
+ * Description:
+ *  Find inode @ino in the filesystem described by @sbp using
+ *  the structural inode list.
+ *  Returns the matching VxFS inode on success, else a NULL pointer.
+ */
+struct vxfs_inode_info *
+vxfs_stiget(struct super_block *sbp, ino_t ino)
+{
+        return __vxfs_iget(ino, VXFS_SBI(sbp)->vsi_stilist);
+}
+
+/**
+ * vxfs_transmod - mode for a VxFS inode
+ * @vip:	VxFS inode
+ *
+ * Description:
+ *  vxfs_transmod returns a Linux mode_t for a given
+ *  VxFS inode structure.
+ */
+static __inline__ mode_t
+vxfs_transmod(struct vxfs_inode_info *vip)
+{
+	mode_t			ret = vip->vii_mode & ~VXFS_TYPE_MASK;
+
+	if (VXFS_ISFIFO(vip))
+		ret |= S_IFIFO;
+	if (VXFS_ISCHR(vip))
+		ret |= S_IFCHR;
+	if (VXFS_ISDIR(vip))
+		ret |= S_IFDIR;
+	if (VXFS_ISBLK(vip))
+		ret |= S_IFBLK;
+	if (VXFS_ISLNK(vip))
+		ret |= S_IFLNK;
+	if (VXFS_ISREG(vip))
+		ret |= S_IFREG;
+	if (VXFS_ISSOC(vip))
+		ret |= S_IFSOCK;
+
+	return (ret);
+}
+
+/**
+ * vxfs_iinit- helper to fill inode fields
+ * @ip:		VFS inode
+ * @vip:	VxFS inode
+ *
+ * Description:
+ *  vxfs_instino is a helper function to fill in all relevant
+ *  fields in @ip from @vip.
+ */
+static void
+vxfs_iinit(struct inode *ip, struct vxfs_inode_info *vip)
+{
+
+	ip->i_mode = vxfs_transmod(vip);
+	ip->i_uid = (uid_t)vip->vii_uid;
+	ip->i_gid = (gid_t)vip->vii_gid;
+
+	ip->i_nlink = vip->vii_nlink;
+	ip->i_size = vip->vii_size;
+
+	ip->i_atime = vip->vii_atime;
+	ip->i_ctime = vip->vii_ctime;
+	ip->i_mtime = vip->vii_mtime;
+
+	ip->i_blksize = PAGE_SIZE;
+	ip->i_blocks = vip->vii_blocks;
+	ip->i_generation = vip->vii_gen;
+
+	ip->u.generic_ip = (void *)vip;
+	
+}
+
+/**
+ * vxfs_get_fake_inode - get fake inode structure
+ * @sbp:		filesystem superblock
+ * @vip:		fspriv inode
+ *
+ * Description:
+ *  vxfs_fake_inode gets a fake inode (not in the inode hash) for a
+ *  superblock, vxfs_inode pair.
+ *  Returns the filled VFS inode.
+ */
+struct inode *
+vxfs_get_fake_inode(struct super_block *sbp, struct vxfs_inode_info *vip)
+{
+	struct inode			*ip = NULL;
+
+	if ((ip = new_inode(sbp))) {
+		vxfs_iinit(ip, vip);
+		ip->i_mapping->a_ops = &vxfs_aops;
+	}
+	return (ip);
+}
+
+/**
+ * vxfs_put_fake_inode - free faked inode
+ * *ip:			VFS inode
+ *
+ * Description:
+ *  vxfs_put_fake_inode frees all data asssociated with @ip.
+ */
+void
+vxfs_put_fake_inode(struct inode *ip)
+{
+	iput(ip);
+}
+
+/**
+ * vxfs_read_inode - fill in inode information
+ * @ip:		inode pointer to fill
+ *
+ * Description:
+ *  vxfs_read_inode reads the disk inode for @ip and fills
+ *  in all relevant fields in @ip.
+ */
+void
+vxfs_read_inode(struct inode *ip)
+{
+	struct super_block		*sbp = ip->i_sb;
+	struct vxfs_inode_info		*vip;
+	struct address_space_operations	*aops;
+	ino_t				ino = ip->i_ino;
+
+	if (!(vip = __vxfs_iget(ino, VXFS_SBI(sbp)->vsi_ilist)))
+		return;
+
+	vxfs_iinit(ip, vip);
+
+	if (VXFS_ISIMMED(vip))
+		aops = &vxfs_immed_aops;
+	else
+		aops = &vxfs_aops;
+
+	if (S_ISREG(ip->i_mode)) {
+		ip->i_fop = &vxfs_file_operations;
+		ip->i_mapping->a_ops = aops;
+	} else if (S_ISDIR(ip->i_mode)) {
+		ip->i_op = &vxfs_dir_inode_ops;
+		ip->i_fop = &vxfs_dir_operations;
+		ip->i_mapping->a_ops = aops;
+	} else if (S_ISLNK(ip->i_mode)) {
+		if (!VXFS_ISIMMED(vip)) {
+			ip->i_op = &page_symlink_inode_operations;
+			ip->i_mapping->a_ops = &vxfs_aops;
+		} else
+			ip->i_op = &vxfs_immed_symlink_iops;
+	} else
+		init_special_inode(ip, ip->i_mode, vip->vii_rdev);
+
+	return;
+}
+
+/**
+ * vxfs_put_inode - remove inode from main memory
+ * @ip:		inode to discard.
+ *
+ * Description:
+ *  vxfs_put_inode() is called on each iput.  If we are the last
+ *  link in memory, free the fspriv inode area.
+ */
+void
+vxfs_put_inode(struct inode *ip)
+{
+	if (atomic_read(&ip->i_count) == 1)
+		kmem_cache_free(vxfs_inode_cachep, ip->u.generic_ip);
+}
diff --git a/fs/freevxfs/vxfs_inode.h b/fs/freevxfs/vxfs_inode.h
new file mode 100644
index 00000000000000..e7d2fc114c2c4f
--- /dev/null
+++ b/fs/freevxfs/vxfs_inode.h
@@ -0,0 +1,182 @@
+/*
+ * Copyright (c) 2000-2001 Christoph Hellwig.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL").
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+#ifndef _VXFS_INODE_H_
+#define _VXFS_INODE_H_
+
+#ident "$Id: vxfs_inode.h,v 1.15 2001/05/26 22:41:23 hch Exp hch $"
+
+/*
+ * Veritas filesystem driver - inode structure.
+ *
+ * This file contains the definition of the disk and core
+ * inodes of the Veritas Filesystem.
+ */
+
+
+#define VXFS_ISIZE		0x100		/* Inode size */
+
+#define VXFS_NDADDR		10		/* Number of direct addrs in inode */
+#define VXFS_NIADDR		2		/* Number of indirect addrs in inode */
+#define VXFS_NIMMED		96		/* Size of immediate data in inode */
+#define VXFS_NTYPED		6		/* Num of typed extents */
+
+#define VXFS_TYPED_OFFSETMASK	(0x00FFFFFFFFFFFFFFULL)
+#define VXFS_TYPED_TYPEMASK	(0xFF00000000000000ULL)
+#define VXFS_TYPED_TYPESHIFT	56
+
+#define VXFS_TYPED_PER_BLOCK(sbp) \
+	((sbp)->s_blocksize / sizeof(struct vxfs_typed))
+
+/*
+ * Possible extent descriptor types for %VXFS_ORG_TYPED extents.
+ */
+enum {
+	VXFS_TYPED_INDIRECT		= 1,
+	VXFS_TYPED_DATA			= 2,
+	VXFS_TYPED_INDIRECT_DEV4	= 3,
+	VXFS_TYPED_DATA_DEV4		= 4,
+};
+
+/*
+ * Data stored immediately in the inode.
+ */
+struct vxfs_immed {
+	u_int8_t	vi_immed[VXFS_NIMMED];
+};
+
+struct vxfs_ext4 {
+	u_int32_t		ve4_spare;		/* ?? */
+	u_int32_t		ve4_indsize;		/* Indirect extent size */
+	vx_daddr_t		ve4_indir[VXFS_NIADDR];	/* Indirect extents */
+	struct direct {					/* Direct extents */
+		vx_daddr_t	extent;			/* Extent number */
+		int32_t		size;			/* Size of extent */
+	} ve4_direct[VXFS_NDADDR];
+};
+
+struct vxfs_typed {
+	u_int64_t	vt_hdr;		/* Header, 0xTTOOOOOOOOOOOOOO; T=type,O=offs */
+	vx_daddr_t	vt_block;	/* Extent block */
+	int32_t		vt_size;	/* Size in blocks */
+};
+
+struct vxfs_typed_dev4 {
+	u_int64_t	vd4_hdr;	/* Header, 0xTTOOOOOOOOOOOOOO; T=type,O=offs */
+	u_int64_t	vd4_block;	/* Extent block */
+	u_int64_t	vd4_size;	/* Size in blocks */
+	int32_t		vd4_dev;	/* Device ID */
+	u_int32_t	__pad1;
+};
+
+/*
+ * The inode as contained on the physical device.
+ */
+struct vxfs_dinode {
+	int32_t		vdi_mode;
+	u_int32_t	vdi_nlink;	/* Link count */
+	u_int32_t	vdi_uid;	/* UID */
+	u_int32_t	vdi_gid;	/* GID */
+	u_int64_t	vdi_size;	/* Inode size in bytes */
+	u_int32_t	vdi_atime;	/* Last time accessed - sec */
+	u_int32_t	vdi_autime;	/* Last time accessed - usec */
+	u_int32_t	vdi_mtime;	/* Last modify time - sec */
+	u_int32_t	vdi_mutime;	/* Last modify time - usec */
+	u_int32_t	vdi_ctime;	/* Create time - sec */
+	u_int32_t	vdi_cutime;	/* Create time - usec */
+	u_int8_t	vdi_aflags;	/* Allocation flags */
+	u_int8_t	vdi_orgtype;	/* Organisation type */
+	u_int16_t	vdi_eopflags;
+	u_int32_t	vdi_eopdata;
+	union {
+		u_int32_t		rdev;
+		u_int32_t		dotdot;
+		struct {
+			u_int32_t	reserved;
+			u_int32_t	fixextsize;
+		} i_regular;
+		struct {
+			u_int32_t	matchino;
+			u_int32_t	fsetindex;
+		} i_vxspec;
+		u_int64_t		align;
+	} vdi_ftarea;
+	u_int32_t	vdi_blocks;	/* How much blocks does inode occupy */
+	u_int32_t	vdi_gen;	/* Inode generation */
+	u_int64_t	vdi_version;	/* Version */
+	union {
+		struct vxfs_immed	immed;
+		struct vxfs_ext4	ext4;
+		struct vxfs_typed	typed[VXFS_NTYPED];
+	} vdi_org;
+	u_int32_t	vdi_iattrino;
+};
+
+#define vdi_rdev	vdi_ftarea.rdev
+#define vdi_dotdot	vdi_ftarea.dotdot
+#define vdi_fixextsize	vdi_ftarea.regular.fixextsize
+#define vdi_matchino	vdi_ftarea.vxspec.matchino
+#define vdi_fsetindex	vdi_ftarea.vxspec.fsetindex
+
+#define vdi_immed	vdi_org.immed
+#define vdi_ext4	vdi_org.ext4
+#define vdi_typed	vdi_org.typed
+
+
+/*
+ * The inode as represented in the main memory.
+ *
+ * TBD: This should become a separate structure...
+ */
+#define vxfs_inode_info	vxfs_dinode
+
+#define vii_mode	vdi_mode
+#define vii_uid		vdi_uid
+#define vii_gid		vdi_gid
+#define vii_nlink	vdi_nlink
+#define vii_size	vdi_size
+#define vii_atime	vdi_atime
+#define vii_ctime	vdi_ctime
+#define vii_mtime	vdi_mtime
+#define vii_blocks	vdi_blocks
+#define vii_org		vdi_org
+#define vii_orgtype	vdi_orgtype
+#define vii_gen		vdi_gen
+
+#define vii_rdev	vdi_ftarea.rdev
+#define vii_dotdot	vdi_ftarea.dotdot
+#define vii_fixextsize	vdi_ftarea.regular.fixextsize
+#define vii_matchino	vdi_ftarea.vxspec.matchino
+#define vii_fsetindex	vdi_ftarea.vxspec.fsetindex
+
+#define vii_immed	vdi_org.immed
+#define vii_ext4	vdi_org.ext4
+#define vii_typed	vdi_org.typed
+
+#endif /* _VXFS_INODE_H_ */
diff --git a/fs/freevxfs/vxfs_kcompat.h b/fs/freevxfs/vxfs_kcompat.h
new file mode 100644
index 00000000000000..3a2e7dac53d779
--- /dev/null
+++ b/fs/freevxfs/vxfs_kcompat.h
@@ -0,0 +1,21 @@
+#ifndef _VXFS_KCOMPAT_H
+#define _VXFS_KCOMPAT_H
+
+#include <linux/version.h>
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
+
+#include <linux/blkdev.h>
+
+typedef long sector_t;
+
+/* Dito.  */
+static inline void map_bh(struct buffer_head *bh, struct super_block *sb, int block)
+{
+	bh->b_state |= 1 << BH_Mapped;
+	bh->b_dev = sb->s_dev;
+	bh->b_blocknr = block;
+}
+
+#endif /* Kernel 2.4 */
+#endif /* _VXFS_KCOMPAT_H */
diff --git a/fs/freevxfs/vxfs_lookup.c b/fs/freevxfs/vxfs_lookup.c
new file mode 100644
index 00000000000000..2942766f27f456
--- /dev/null
+++ b/fs/freevxfs/vxfs_lookup.c
@@ -0,0 +1,322 @@
+/*
+ * Copyright (c) 2000-2001 Christoph Hellwig.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL").
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ident "$Id: vxfs_lookup.c,v 1.21 2002/01/02 22:00:13 hch Exp hch $"
+
+/*
+ * Veritas filesystem driver - lookup and other directory related code.
+ */
+#include <linux/fs.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/highmem.h>
+#include <linux/kernel.h>
+#include <linux/pagemap.h>
+
+#include "vxfs.h"
+#include "vxfs_dir.h"
+#include "vxfs_inode.h"
+#include "vxfs_extern.h"
+
+/*
+ * Number of VxFS blocks per page.
+ */
+#define VXFS_BLOCK_PER_PAGE(sbp)  ((PAGE_CACHE_SIZE / (sbp)->s_blocksize))
+
+
+static struct dentry *	vxfs_lookup(struct inode *, struct dentry *);
+static int		vxfs_readdir(struct file *, void *, filldir_t);
+
+struct inode_operations vxfs_dir_inode_ops = {
+	.lookup =		vxfs_lookup,
+};
+
+struct file_operations vxfs_dir_operations = {
+	.readdir =		vxfs_readdir,
+};
+
+ 
+static __inline__ u_long
+dir_pages(struct inode *inode)
+{
+	return (inode->i_size + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+}
+ 
+static __inline__ u_long
+dir_blocks(struct inode *ip)
+{
+	u_long			bsize = ip->i_sb->s_blocksize;
+	return (ip->i_size + bsize - 1) & ~(bsize - 1);
+}
+
+/*
+ * NOTE! unlike strncmp, vxfs_match returns 1 for success, 0 for failure.
+ *
+ * len <= VXFS_NAMELEN and de != NULL are guaranteed by caller.
+ */
+static __inline__ int
+vxfs_match(int len, const char * const name, struct vxfs_direct *de)
+{
+	if (len != de->d_namelen)
+		return 0;
+	if (!de->d_ino)
+		return 0;
+	return !memcmp(name, de->d_name, len);
+}
+
+static __inline__ struct vxfs_direct *
+vxfs_next_entry(struct vxfs_direct *de)
+{
+	return ((struct vxfs_direct *)((char*)de + de->d_reclen));
+}
+
+/**
+ * vxfs_find_entry - find a mathing directory entry for a dentry
+ * @ip:		directory inode
+ * @dp:		dentry for which we want to find a direct
+ * @ppp:	gets filled with the page the return value sits in
+ *
+ * Description:
+ *   vxfs_find_entry finds a &struct vxfs_direct for the VFS directory
+ *   cache entry @dp.  @ppp will be filled with the page the return
+ *   value resides in.
+ *
+ * Returns:
+ *   The wanted direct on success, else a NULL pointer.
+ */
+static struct vxfs_direct *
+vxfs_find_entry(struct inode *ip, struct dentry *dp, struct page **ppp)
+{
+	u_long				npages, page, nblocks, pblocks, block;
+	u_long				bsize = ip->i_sb->s_blocksize;
+	const char			*name = dp->d_name.name;
+	int				namelen = dp->d_name.len;
+
+	npages = dir_pages(ip);
+	nblocks = dir_blocks(ip);
+	pblocks = VXFS_BLOCK_PER_PAGE(ip->i_sb);
+	
+	for (page = 0; page < npages; page++) {
+		caddr_t			kaddr;
+		struct page		*pp;
+
+		pp = vxfs_get_page(ip->i_mapping, page);
+		if (IS_ERR(pp))
+			continue;
+		kaddr = (caddr_t)page_address(pp);
+
+		for (block = 0; block <= nblocks && block <= pblocks; block++) {
+			caddr_t			baddr, limit;
+			struct vxfs_dirblk	*dbp;
+			struct vxfs_direct	*de;
+
+			baddr = kaddr + (block * bsize);
+			limit = baddr + bsize - VXFS_DIRLEN(1);
+			
+			dbp = (struct vxfs_dirblk *)baddr;
+			de = (struct vxfs_direct *)(baddr + VXFS_DIRBLKOV(dbp));
+
+			for (; (caddr_t)de <= limit; de = vxfs_next_entry(de)) {
+				if (!de->d_reclen)
+					break;
+				if (!de->d_ino)
+					continue;
+				if (vxfs_match(namelen, name, de)) {
+					*ppp = pp;
+					return (de);
+				}
+			}
+		}
+		vxfs_put_page(pp);
+	}
+
+	return NULL;
+}
+
+/**
+ * vxfs_inode_by_name - find inode number for dentry
+ * @dip:	directory to search in
+ * @dp:		dentry we seach for
+ *
+ * Description:
+ *   vxfs_inode_by_name finds out the inode number of
+ *   the path component described by @dp in @dip.
+ *
+ * Returns:
+ *   The wanted inode number on success, else Zero.
+ */
+static ino_t
+vxfs_inode_by_name(struct inode *dip, struct dentry *dp)
+{
+	struct vxfs_direct		*de;
+	struct page			*pp;
+	ino_t				ino = 0;
+
+	de = vxfs_find_entry(dip, dp, &pp);
+	if (de) {
+		ino = de->d_ino;
+		kunmap(pp);
+		page_cache_release(pp);
+	}
+	
+	return (ino);
+}
+
+/**
+ * vxfs_lookup - lookup pathname component
+ * @dip:	dir in which we lookup
+ * @dp:		dentry we lookup
+ *
+ * Description:
+ *   vxfs_lookup tries to lookup the pathname component described
+ *   by @dp in @dip.
+ *
+ * Returns:
+ *   A NULL-pointer on success, else an negative error code encoded
+ *   in the return pointer.
+ */
+static struct dentry *
+vxfs_lookup(struct inode *dip, struct dentry *dp)
+{
+	struct inode		*ip = NULL;
+	ino_t			ino;
+			 
+	if (dp->d_name.len > VXFS_NAMELEN)
+		return ERR_PTR(-ENAMETOOLONG);
+				 
+	ino = vxfs_inode_by_name(dip, dp);
+	if (ino == 0)
+		return NULL;
+
+	ip = iget(dip->i_sb, ino);
+	if (!ip)
+		return ERR_PTR(-EACCES);
+	d_add(dp, ip);
+	return NULL;
+}
+
+/**
+ * vxfs_readdir - read a directory
+ * @fp:		the directory to read
+ * @retp:	return buffer
+ * @filler:	filldir callback
+ *
+ * Description:
+ *   vxfs_readdir fills @retp with directory entries from @fp
+ *   using the VFS supplied callback @filler.
+ *
+ * Returns:
+ *   Zero.
+ */
+static int
+vxfs_readdir(struct file *fp, void *retp, filldir_t filler)
+{
+	struct inode		*ip = fp->f_dentry->d_inode;
+	struct super_block	*sbp = ip->i_sb;
+	u_long			bsize = sbp->s_blocksize;
+	u_long			page, npages, block, pblocks, nblocks, offset;
+	loff_t			pos;
+
+	switch ((long)fp->f_pos) {
+	case 0:
+		if (filler(retp, ".", 1, fp->f_pos, ip->i_ino, DT_DIR) < 0)
+			goto out;
+		fp->f_pos++;
+		/* fallthrough */
+	case 1:
+		if (filler(retp, "..", 2, fp->f_pos, VXFS_INO(ip)->vii_dotdot, DT_DIR) < 0)
+			goto out;
+		fp->f_pos++;
+		/* fallthrough */
+	}
+
+	pos = fp->f_pos - 2;
+	
+	if (pos > VXFS_DIRROUND(ip->i_size))
+		return 0;
+
+	npages = dir_pages(ip);
+	nblocks = dir_blocks(ip);
+	pblocks = VXFS_BLOCK_PER_PAGE(sbp);
+
+	page = pos >> PAGE_CACHE_SHIFT;
+	offset = pos & ~PAGE_CACHE_MASK;
+	block = (u_long)(pos >> sbp->s_blocksize_bits) % pblocks;
+
+	for (; page < npages; page++, block = 0) {
+		caddr_t			kaddr;
+		struct page		*pp;
+
+		pp = vxfs_get_page(ip->i_mapping, page);
+		if (IS_ERR(pp))
+			continue;
+		kaddr = (caddr_t)page_address(pp);
+
+		for (; block <= nblocks && block <= pblocks; block++) {
+			caddr_t			baddr, limit;
+			struct vxfs_dirblk	*dbp;
+			struct vxfs_direct	*de;
+
+			baddr = kaddr + (block * bsize);
+			limit = baddr + bsize - VXFS_DIRLEN(1);
+	
+			dbp = (struct vxfs_dirblk *)baddr;
+			de = (struct vxfs_direct *)
+				(offset ?
+				 (kaddr + offset) :
+				 (baddr + VXFS_DIRBLKOV(dbp)));
+
+			for (; (caddr_t)de <= limit; de = vxfs_next_entry(de)) {
+				int	over;
+
+				if (!de->d_reclen)
+					break;
+				if (!de->d_ino)
+					continue;
+
+				offset = (caddr_t)de - kaddr;
+				over = filler(retp, de->d_name, de->d_namelen,
+					((page << PAGE_CACHE_SHIFT) | offset) + 2,
+					de->d_ino, DT_UNKNOWN);
+				if (over) {
+					vxfs_put_page(pp);
+					goto done;
+				}
+			}
+			offset = 0;
+		}
+		vxfs_put_page(pp);
+		offset = 0;
+	}
+
+done:
+	fp->f_pos = ((page << PAGE_CACHE_SHIFT) | offset) + 2;
+out:
+	return 0;
+}
diff --git a/fs/freevxfs/vxfs_olt.c b/fs/freevxfs/vxfs_olt.c
new file mode 100644
index 00000000000000..6b45a5a5c03bd8
--- /dev/null
+++ b/fs/freevxfs/vxfs_olt.c
@@ -0,0 +1,133 @@
+/*
+ * Copyright (c) 2000-2001 Christoph Hellwig.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL").
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ident "$Id: vxfs_olt.c,v 1.10 2002/01/02 23:03:58 hch Exp hch $"
+
+/* 
+ * Veritas filesystem driver - object location table support.
+ */
+#include <linux/fs.h>
+#include <linux/kernel.h>
+
+#include "vxfs.h"
+#include "vxfs_olt.h"
+
+
+static __inline__ void
+vxfs_get_fshead(struct vxfs_oltfshead *fshp, struct vxfs_sb_info *infp)
+{
+	if (infp->vsi_fshino)
+		BUG();
+	infp->vsi_fshino = fshp->olt_fsino[0];
+}
+
+static __inline__ void
+vxfs_get_ilist(struct vxfs_oltilist *ilistp, struct vxfs_sb_info *infp)
+{
+	if (infp->vsi_iext)
+		BUG();
+	infp->vsi_iext = ilistp->olt_iext[0]; 
+}
+
+static __inline__ u_long
+vxfs_oblock(struct super_block *sbp, daddr_t block, u_long bsize)
+{
+	if (sbp->s_blocksize % bsize)
+		BUG();
+	return (block * (sbp->s_blocksize / bsize));
+}
+
+
+/**
+ * vxfs_read_olt - read olt
+ * @sbp:	superblock of the filesystem
+ * @bsize:	blocksize of the filesystem
+ *
+ * Description:
+ *   vxfs_read_olt reads the olt of the filesystem described by @sbp
+ *   into main memory and does some basic setup.
+ *
+ * Returns:
+ *   Zero on success, else a negative error code.
+ */
+int
+vxfs_read_olt(struct super_block *sbp, u_long bsize)
+{
+	struct vxfs_sb_info	*infp = VXFS_SBI(sbp);
+	struct buffer_head	*bp;
+	struct vxfs_olt		*op;
+	char			*oaddr, *eaddr;
+
+
+	bp = sb_bread(sbp, vxfs_oblock(sbp, infp->vsi_oltext, bsize));
+	if (!bp || !bp->b_data)
+		goto fail;
+
+	op = (struct vxfs_olt *)bp->b_data;
+	if (op->olt_magic != VXFS_OLT_MAGIC) {
+		printk(KERN_NOTICE "vxfs: ivalid olt magic number\n");
+		goto fail;
+	}
+
+	/*
+	 * It is in theory possible that vsi_oltsize is > 1.
+	 * I've not seen any such filesystem yet and I'm lazy..  --hch
+	 */
+	if (infp->vsi_oltsize > 1) {
+		printk(KERN_NOTICE "vxfs: oltsize > 1 detected.\n");
+		printk(KERN_NOTICE "vxfs: please notify hch@caldera.de\n");
+		goto fail;
+	}
+
+	oaddr = (char *)bp->b_data + op->olt_size;
+	eaddr = (char *)bp->b_data + (infp->vsi_oltsize * sbp->s_blocksize);
+
+	while (oaddr < eaddr) {
+		struct vxfs_oltcommon	*ocp =
+			(struct vxfs_oltcommon *)oaddr;
+		
+		switch (ocp->olt_type) {
+		case VXFS_OLT_FSHEAD:
+			vxfs_get_fshead((struct vxfs_oltfshead *)oaddr, infp);
+			break;
+		case VXFS_OLT_ILIST:
+			vxfs_get_ilist((struct vxfs_oltilist *)oaddr, infp);
+			break;
+		}
+
+		oaddr += ocp->olt_size;
+	}
+
+	brelse(bp);
+	return 0;
+
+fail:
+	brelse(bp);
+	return -EINVAL;
+}
diff --git a/fs/freevxfs/vxfs_olt.h b/fs/freevxfs/vxfs_olt.h
new file mode 100644
index 00000000000000..e24f949f8bdc93
--- /dev/null
+++ b/fs/freevxfs/vxfs_olt.h
@@ -0,0 +1,147 @@
+/*
+ * Copyright (c) 2000-2001 Christoph Hellwig.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL").
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+#ifndef _VXFS_OLT_H_
+#define _VXFS_OLT_H_
+
+#ident "$Id: vxfs_olt.h,v 1.5 2001/04/25 18:11:23 hch Exp hch $"
+
+/*
+ * Veritas filesystem driver - Object Location Table data structures.
+ *
+ * This file contains definitions for the Object Location Table used
+ * by the Veritas Filesystem version 2 and newer.
+ */
+
+
+/*
+ * OLT magic number (vxfs_olt->olt_magic).
+ */
+#define VXFS_OLT_MAGIC		0xa504FCF5
+
+/*
+ * VxFS OLT entry types.
+ */
+enum {
+	VXFS_OLT_FREE	= 1,
+	VXFS_OLT_FSHEAD	= 2,
+	VXFS_OLT_CUT	= 3,
+	VXFS_OLT_ILIST	= 4,
+	VXFS_OLT_DEV	= 5,
+	VXFS_OLT_SB	= 6
+};
+
+/*
+ * VxFS OLT header.
+ *
+ * The Object Location Table header is placed at the beginning of each
+ * OLT extent.  It is used to fing certain filesystem-wide metadata, e.g.
+ * the inital inode list, the fileset header or the device configuration.
+ */
+struct vxfs_olt {
+	u_int32_t	olt_magic;	/* magic number			*/
+	u_int32_t	olt_size;	/* size of this entry		*/
+	u_int32_t	olt_checksum;	/* checksum of extent		*/
+	u_int32_t	__unused1;	/* ???				*/
+	u_int32_t	olt_mtime;	/* time of last mod. (sec)	*/
+	u_int32_t	olt_mutime;	/* time of last mod. (usec)	*/
+	u_int32_t	olt_totfree;	/* free space in OLT extent	*/
+	vx_daddr_t	olt_extents[2];	/* addr of this extent, replica	*/
+	u_int32_t	olt_esize;	/* size of this extent		*/
+	vx_daddr_t	olt_next[2];    /* addr of next extent, replica	*/
+	u_int32_t	olt_nsize;	/* size of next extent		*/
+	u_int32_t	__unused2;	/* align to 8 byte boundary	*/
+};
+
+/*
+ * VxFS common OLT entry (on disk).
+ */
+struct vxfs_oltcommon {
+	u_int32_t	olt_type;	/* type of this record		*/
+	u_int32_t	olt_size;	/* size of this record		*/
+};
+
+/*
+ * VxFS free OLT entry (on disk).
+ */
+struct vxfs_oltfree {
+	u_int32_t	olt_type;	/* type of this record		*/
+	u_int32_t	olt_fsize;	/* size of this free record	*/
+};
+
+/*
+ * VxFS initial-inode list (on disk).
+ */
+struct vxfs_oltilist {
+	u_int32_t	olt_type;	/* type of this record		*/
+	u_int32_t	olt_size;	/* size of this record		*/
+	vx_ino_t	olt_iext[2];	/* initial inode list, replica	*/
+};
+
+/*
+ * Current Usage Table 
+ */
+struct vxfs_oltcut {
+	u_int32_t	olt_type;	/* type of this record		*/
+	u_int32_t	olt_size;	/* size of this record		*/
+	vx_ino_t	olt_cutino;	/* inode of current usage table	*/
+	u_int32_t	__pad;		/* unused, 8 byte align		*/
+};
+
+/*
+ * Inodes containing Superblock, Intent log and OLTs 
+ */
+struct vxfs_oltsb {
+	u_int32_t	olt_type;	/* type of this record		*/
+	u_int32_t	olt_size;	/* size of this record		*/
+	vx_ino_t	olt_sbino;	/* inode of superblock file	*/
+	u_int32_t	__unused1;	/* ???				*/
+	vx_ino_t	olt_logino[2];	/* inode of log file,replica	*/
+	vx_ino_t	olt_oltino[2];	/* inode of OLT, replica	*/
+};
+
+/*
+ * Inode containing device configuration + it's replica 
+ */
+struct vxfs_oltdev {
+	u_int32_t	olt_type;	/* type of this record		*/
+	u_int32_t	olt_size;	/* size of this record		*/
+	vx_ino_t	olt_devino[2];	/* inode of device config files	*/
+};
+
+/*
+ * Fileset header 
+ */
+struct vxfs_oltfshead {
+	u_int32_t	olt_type;	/* type number			*/
+	u_int32_t	olt_size;	/* size of this record		*/
+	vx_ino_t	olt_fsino[2];   /* inodes of fileset header	*/
+};
+
+#endif /* _VXFS_OLT_H_ */
diff --git a/fs/freevxfs/vxfs_subr.c b/fs/freevxfs/vxfs_subr.c
new file mode 100644
index 00000000000000..51739281101ac6
--- /dev/null
+++ b/fs/freevxfs/vxfs_subr.c
@@ -0,0 +1,191 @@
+/*
+ * Copyright (c) 2000-2001 Christoph Hellwig.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL").
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ident "$Id: vxfs_subr.c,v 1.8 2001/12/28 20:50:47 hch Exp hch $"
+
+/*
+ * Veritas filesystem driver - shared subroutines.
+ */
+#include <linux/fs.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/pagemap.h>
+
+#include "vxfs_kcompat.h"
+#include "vxfs_extern.h"
+
+
+static int		vxfs_readpage(struct file *, struct page *);
+static int		vxfs_bmap(struct address_space *, long);
+
+struct address_space_operations vxfs_aops = {
+	.readpage =		vxfs_readpage,
+	.bmap =			vxfs_bmap,
+	.sync_page =		block_sync_page,
+};
+
+__inline__ void
+vxfs_put_page(struct page *pp)
+{
+	kunmap(pp);
+	page_cache_release(pp);
+}
+
+/**
+ * vxfs_get_page - read a page into memory.
+ * @ip:		inode to read from
+ * @n:		page number
+ *
+ * Description:
+ *   vxfs_get_page reads the @n th page of @ip into the pagecache.
+ *
+ * Returns:
+ *   The wanted page on success, else a NULL pointer.
+ */
+struct page *
+vxfs_get_page(struct address_space *mapping, u_long n)
+{
+	struct page *			pp;
+
+	pp = read_cache_page(mapping, n,
+			(filler_t*)mapping->a_ops->readpage, NULL);
+
+	if (!IS_ERR(pp)) {
+		wait_on_page(pp);
+		kmap(pp);
+		if (!Page_Uptodate(pp))
+			goto fail;
+		/** if (!PageChecked(pp)) **/
+			/** vxfs_check_page(pp); **/
+		if (PageError(pp))
+			goto fail;
+	}
+	
+	return (pp);
+		 
+fail:
+	vxfs_put_page(pp);
+	return ERR_PTR(-EIO);
+}
+
+/**
+ * vxfs_bread - read buffer for a give inode,block tuple
+ * @ip:		inode
+ * @block:	logical block
+ *
+ * Description:
+ *   The vxfs_bread function reads block no @block  of
+ *   @ip into the buffercache.
+ *
+ * Returns:
+ *   The resulting &struct buffer_head.
+ */
+struct buffer_head *
+vxfs_bread(struct inode *ip, int block)
+{
+	struct buffer_head	*bp;
+	daddr_t			pblock;
+
+	pblock = vxfs_bmap1(ip, block);
+	bp = sb_bread(ip->i_sb, pblock);
+
+	return (bp);
+}
+
+/**
+ * vxfs_get_block - locate buffer for given inode,block tuple 
+ * @ip:		inode
+ * @iblock:	logical block
+ * @bp:		buffer skeleton
+ * @create:	%TRUE if blocks may be newly allocated.
+ *
+ * Description:
+ *   The vxfs_get_block function fills @bp with the right physical
+ *   block and device number to perform a lowlevel read/write on
+ *   it.
+ *
+ * Returns:
+ *   Zero on success, else a negativ error code (-EIO).
+ */
+static int
+vxfs_getblk(struct inode *ip, sector_t iblock,
+	    struct buffer_head *bp, int create)
+{
+	daddr_t			pblock;
+
+	pblock = vxfs_bmap1(ip, iblock);
+	if (pblock != 0) {
+		map_bh(bp, ip->i_sb, pblock);
+		return 0;
+	}
+
+	return -EIO;
+}
+
+/**
+ * vxfs_readpage - read one page synchronously into the pagecache
+ * @file:	file context (unused)
+ * @page:	page frame to fill in.
+ *
+ * Description:
+ *   The vxfs_readpage routine reads @page synchronously into the
+ *   pagecache.
+ *
+ * Returns:
+ *   Zero on success, else a negative error code.
+ *
+ * Locking status:
+ *   @page is locked and will be unlocked.
+ */
+static int
+vxfs_readpage(struct file *file, struct page *page)
+{
+	return block_read_full_page(page, vxfs_getblk);
+}
+ 
+/**
+ * vxfs_bmap - perform logical to physical block mapping
+ * @mapping:	logical to physical mapping to use
+ * @block:	logical block (relative to @mapping).
+ *
+ * Description:
+ *   Vxfs_bmap find out the corresponding phsical block to the
+ *   @mapping, @block pair.
+ *
+ * Returns:
+ *   Physical block number on success, else Zero.
+ *
+ * Locking status:
+ *   We are under the bkl.
+ */
+static int
+vxfs_bmap(struct address_space *mapping, long block)
+{
+	return generic_block_bmap(mapping, block, vxfs_getblk);
+}
diff --git a/fs/freevxfs/vxfs_super.c b/fs/freevxfs/vxfs_super.c
new file mode 100644
index 00000000000000..768e91bb371192
--- /dev/null
+++ b/fs/freevxfs/vxfs_super.c
@@ -0,0 +1,251 @@
+/*
+ * Copyright (c) 2000-2001 Christoph Hellwig.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL").
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ident "$Id: vxfs_super.c,v 1.29 2002/01/02 22:02:12 hch Exp hch $"
+
+/*
+ * Veritas filesystem driver - superblock related routines.
+ */
+#include <linux/init.h>
+#include <linux/module.h>
+
+#include <linux/blkdev.h>
+#include <linux/fs.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/stat.h>
+
+#include "vxfs.h"
+#include "vxfs_extern.h"
+#include "vxfs_dir.h"
+#include "vxfs_inode.h"
+
+
+MODULE_AUTHOR("Christoph Hellwig");
+MODULE_DESCRIPTION("Veritas Filesystem (VxFS) driver");
+MODULE_LICENSE("Dual BSD/GPL");
+
+
+static void		vxfs_put_super(struct super_block *);
+static int		vxfs_statfs(struct super_block *, struct statfs *);
+
+static struct super_operations vxfs_super_ops = {
+	.read_inode =		vxfs_read_inode,
+	.put_inode =		vxfs_put_inode,
+	.put_super =		vxfs_put_super,
+	.statfs =		vxfs_statfs,
+};
+
+/**
+ * vxfs_put_super - free superblock resources
+ * @sbp:	VFS superblock.
+ *
+ * Description:
+ *   vxfs_put_super frees all resources allocated for @sbp
+ *   after the last instance of the filesystem is unmounted.
+ */
+
+static void
+vxfs_put_super(struct super_block *sbp)
+{
+	struct vxfs_sb_info	*infp = VXFS_SBI(sbp);
+
+	vxfs_put_fake_inode(infp->vsi_fship);
+	vxfs_put_fake_inode(infp->vsi_ilist);
+	vxfs_put_fake_inode(infp->vsi_stilist);
+
+	brelse(infp->vsi_bp);
+	kfree(infp);
+}
+
+/**
+ * vxfs_statfs - get filesystem information
+ * @sbp:	VFS superblock
+ * @bufp:	output buffer
+ *
+ * Description:
+ *   vxfs_statfs fills the statfs buffer @bufp with information
+ *   about the filesystem described by @sbp.
+ *
+ * Returns:
+ *   Zero.
+ *
+ * Locking:
+ *   We are under bkl and @sbp->s_lock.
+ *
+ * Notes:
+ *   This is everything but complete...
+ */
+static int
+vxfs_statfs(struct super_block *sbp, struct statfs *bufp)
+{
+	struct vxfs_sb_info		*infp = VXFS_SBI(sbp);
+
+	bufp->f_type = VXFS_SUPER_MAGIC;
+	bufp->f_bsize = sbp->s_blocksize;
+	bufp->f_blocks = infp->vsi_raw->vs_dsize;
+	bufp->f_bfree = infp->vsi_raw->vs_free;
+	bufp->f_bavail = 0;
+	bufp->f_files = 0;
+	bufp->f_ffree = infp->vsi_raw->vs_ifree;
+	bufp->f_namelen = VXFS_NAMELEN;
+
+	return 0;
+}
+
+/**
+ * vxfs_read_super - read superblock into memory and initalize filesystem
+ * @sbp:		VFS superblock (to fill)
+ * @dp:			fs private mount data
+ * @silent:		do not complain loudly when sth is wrong
+ *
+ * Description:
+ *   We are called on the first mount of a filesystem to read the
+ *   superblock into memory and do some basic setup.
+ *
+ * Returns:
+ *   The superblock on success, else %NULL.
+ *
+ * Locking:
+ *   We are under the bkl and @sbp->s_lock.
+ */
+static struct super_block *
+vxfs_read_super(struct super_block *sbp, void *dp, int silent)
+{
+	struct vxfs_sb_info	*infp;
+	struct vxfs_sb		*rsbp;
+	struct buffer_head	*bp = NULL;
+	u_long			bsize;
+
+	infp = kmalloc(sizeof(*infp), GFP_KERNEL);
+	if (!infp) {
+		printk(KERN_WARNING "vxfs: unable to allocate incore superblock\n");
+		return NULL;
+	}
+	memset(infp, 0, sizeof(*infp));
+
+	bsize = sb_min_blocksize(sbp, BLOCK_SIZE);
+	if (!bsize) {
+		printk(KERN_WARNING "vxfs: unable to set blocksize\n");
+		goto out;
+	}
+
+	bp = sb_bread(sbp, 1);
+	if (!bp || !buffer_mapped(bp)) {
+		if (!silent) {
+			printk(KERN_WARNING
+				"vxfs: unable to read disk superblock\n");
+		}
+		goto out;
+	}
+
+	rsbp = (struct vxfs_sb *)bp->b_data;
+	if (rsbp->vs_magic != VXFS_SUPER_MAGIC) {
+		if (!silent)
+			printk(KERN_NOTICE "vxfs: WRONG superblock magic\n");
+		goto out;
+	}
+
+	if ((rsbp->vs_version < 2 || rsbp->vs_version > 4) && !silent) {
+		printk(KERN_NOTICE "vxfs: unsupported VxFS version (%d)\n",
+		       rsbp->vs_version);
+		goto out;
+	}
+
+#ifdef DIAGNOSTIC
+	printk(KERN_DEBUG "vxfs: supported VxFS version (%d)\n", rsbp->vs_version);
+	printk(KERN_DEBUG "vxfs: blocksize: %d\n", rsbp->vs_bsize);
+#endif
+
+	sbp->s_magic = rsbp->vs_magic;
+	sbp->u.generic_sbp = (void *)infp;
+
+	infp->vsi_raw = rsbp;
+	infp->vsi_bp = bp;
+	infp->vsi_oltext = rsbp->vs_oltext[0];
+	infp->vsi_oltsize = rsbp->vs_oltsize;
+
+	if (!sb_set_blocksize(sbp, rsbp->vs_bsize)) {
+		printk(KERN_WARNING "vxfs: unable to set final block size\n");
+		goto out;
+	}
+
+	if (vxfs_read_olt(sbp, bsize)) {
+		printk(KERN_WARNING "vxfs: unable to read olt\n");
+		goto out;
+	}
+
+	if (vxfs_read_fshead(sbp)) {
+		printk(KERN_WARNING "vxfs: unable to read fshead\n");
+		goto out;
+	}
+
+	sbp->s_op = &vxfs_super_ops;
+	sbp->s_root = d_alloc_root(iget(sbp, VXFS_ROOT_INO));
+	if (!sbp->s_root) {
+		printk(KERN_WARNING "vxfs: unable to get root dentry.\n");
+		goto out_free_ilist;
+	}
+
+	return (sbp);
+	
+out_free_ilist:
+	vxfs_put_fake_inode(infp->vsi_fship);
+	vxfs_put_fake_inode(infp->vsi_ilist);
+	vxfs_put_fake_inode(infp->vsi_stilist);
+out:
+	brelse(bp);
+	kfree(infp);
+	return NULL;
+}
+
+/*
+ * The usual module blurb.
+ */
+static DECLARE_FSTYPE_DEV(vxfs_fs_type, "vxfs", vxfs_read_super);
+
+static int __init
+vxfs_init(void)
+{
+	vxfs_inode_cachep = kmem_cache_create("vxfs_inode",
+			sizeof(struct vxfs_inode_info), 0, 0, NULL, NULL);
+	if (vxfs_inode_cachep)
+		return (register_filesystem(&vxfs_fs_type));
+	return -ENOMEM;
+}
+
+static void __exit
+vxfs_cleanup(void)
+{
+	unregister_filesystem(&vxfs_fs_type);
+	kmem_cache_destroy(vxfs_inode_cachep);
+}
+
+module_init(vxfs_init);
+module_exit(vxfs_cleanup);
diff --git a/fs/hfs/COPYING b/fs/hfs/COPYING
new file mode 100644
index 00000000000000..e77696ae8ddfea
--- /dev/null
+++ b/fs/hfs/COPYING
@@ -0,0 +1,339 @@
+		    GNU GENERAL PUBLIC LICENSE
+		       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+                          675 Mass Ave, Cambridge, MA 02139, USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+			    Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+  To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have.  You must make sure that they, too, receive or can get the
+source code.  And you must show them these terms so they know their
+rights.
+
+  We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+  Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software.  If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+  Finally, any free program is threatened constantly by software
+patents.  We wish to avoid the danger that redistributors of a free
+program will individually obtain patent licenses, in effect making the
+program proprietary.  To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+		    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License.  The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language.  (Hereinafter, translation is included without limitation in
+the term "modification".)  Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope.  The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+  1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+  2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+    a) You must cause the modified files to carry prominent notices
+    stating that you changed the files and the date of any change.
+
+    b) You must cause any work that you distribute or publish, that in
+    whole or in part contains or is derived from the Program or any
+    part thereof, to be licensed as a whole at no charge to all third
+    parties under the terms of this License.
+
+    c) If the modified program normally reads commands interactively
+    when run, you must cause it, when started running for such
+    interactive use in the most ordinary way, to print or display an
+    announcement including an appropriate copyright notice and a
+    notice that there is no warranty (or else, saying that you provide
+    a warranty) and that users may redistribute the program under
+    these conditions, and telling the user how to view a copy of this
+    License.  (Exception: if the Program itself is interactive but
+    does not normally print such an announcement, your work based on
+    the Program is not required to print an announcement.)
+
+These requirements apply to the modified work as a whole.  If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works.  But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+  3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+    a) Accompany it with the complete corresponding machine-readable
+    source code, which must be distributed under the terms of Sections
+    1 and 2 above on a medium customarily used for software interchange; or,
+
+    b) Accompany it with a written offer, valid for at least three
+    years, to give any third party, for a charge no more than your
+    cost of physically performing source distribution, a complete
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+    customarily used for software interchange; or,
+
+    c) Accompany it with the information you received as to the offer
+    to distribute corresponding source code.  (This alternative is
+    allowed only for noncommercial distribution and only if you
+    received the program in object code or executable form with such
+    an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for
+making modifications to it.  For an executable work, complete source
+code means all the source code for all modules it contains, plus any
+associated interface definition files, plus the scripts used to
+control compilation and installation of the executable.  However, as a
+special exception, the source code distributed need not include
+anything that is normally distributed (in either source or binary
+form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component
+itself accompanies the executable.
+
+If distribution of executable or object code is made by offering
+access to copy from a designated place, then offering equivalent
+access to copy the source code from the same place counts as
+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+  4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License.  Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+  5. You are not required to accept this License, since you have not
+signed it.  However, nothing else grants you permission to modify or
+distribute the Program or its derivative works.  These actions are
+prohibited by law if you do not accept this License.  Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+  6. Each time you redistribute the Program (or any work based on the
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+You are not responsible for enforcing compliance by third parties to
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+
+  7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
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+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
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+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
+circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices.  Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+  8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded.  In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+  9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation.  If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+  10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
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+make exceptions for this.  Our decision will be guided by the two goals
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+
+			    NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
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+
+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
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+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
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+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+		     END OF TERMS AND CONDITIONS
+
+	    How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) 19yy  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) 19yy name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Library General
+Public License instead of this License.
diff --git a/fs/hfs/ChangeLog b/fs/hfs/ChangeLog
new file mode 100644
index 00000000000000..723f2232d8fad4
--- /dev/null
+++ b/fs/hfs/ChangeLog
@@ -0,0 +1,2506 @@
+2000-01-02  a sun  <asun@asun.cobalt.com>
+
+	* file.c (hfs_get_block): added hfs_get_block for regular files. 
+
+1999-04-12  a sun  <asun@hecate.darksunrising.blah>
+
+	* file_hdr.c (hdr_read): added rootinfo behaviour for DID header.
+
+1999-04-11  a sun  <asun@hecate.darksunrising.blah>
+
+	* super.c (parse_options): added s_version so that we can select
+	between different versions of the same layout.
+
+1999-04-05  a sun  <asun@hecate.darksunrising.blah>
+
+	* linux/hfs_fs.h: unified netatalk and appledouble header format. 
+	added in all of the AFP attribute bits.
+
+	* file_hdr.c: added netatalk appledouble v2 compatible headers. 
+
+1999-01-30  a sun  <asun@hecate.darksunrising.blah>
+
+	* catalog.c (hfs_cat_move): fixed corruption problem with
+	renames.
+
+1999-01-27  a sun  <asun@hecate.darksunrising.blah>
+
+	* file_hdr.c (get/set_dates): got rid of broken afpd times. NOTE:
+	you must use netatalk-1.4b2+asun2.1.2 or newer for this.
+
+1998-12-20  a sun  <asun@hecate.darksunrising.blah>
+
+	* bdelete.c (del_root): assign bthLNode and bthFNode only if the
+	root node becomes a leaf node. Disk First Aid no longer
+	complains. Norton Utilities, of course, has decided that it
+	doesn't like the root node number. bleah. i think that it might be
+	due to Norton Utilities not expecting the root node to have moved.
+
+1998-12-16  a sun  <asun@hecate.darksunrising.blah>
+
+	* sysdep.c (hfs_revalidate_dentry): fix inode dates when there's a
+	timezone change.
+
+1998-12-15  root  <root@hecate.darksunrising.blah>
+
+	* extent.c (new_extent): expand block size variables to handle
+	u32. 
+
+	* mdb.c (hfs_mdb_get): AlBlkSiz shouldn't be capped at 65535. we
+	should be able to handle much larger volumes now.
+
+1998-11-21  a sun  <asun@hecate.darksunrising.blah>
+
+	* hfs_sysdep.h, hfs_fs.h: added hfs_from_utc/to_utc to deal with
+	date differences on hfs formatted media. 
+
+	NOTE: hfs extended keeps everything in utc, so we'll need to deal
+	with that when appropriate.
+
+1998-11-12  a sun  <asun@hecate.darksunrising.blah>
+
+	* extent.c (shrink_fork): added some lock_bitmap/unlock_bitmap's
+	to protect hfs_clear_vbm_bits. we should no longer have problems
+	with free_ablocks wrapping around.
+
+1998-11-02  a sun  <asun@hecate.darksunrising.blah>
+
+	* mdb.c (hfs_mdb_get): plugged up an mdb failed initialization
+	leak.
+
+1998-10-31  a sun  <asun@hecate.darksunrising.blah>
+
+	* version.c (hfs_version): bumped to version 0.96.
+
+	* mdb.c (hfs_mdb_commit): you only write out the alternate MDB
+	when the catalog or extents overflow files grow. that just leaves
+	the btree corruption problems. bleah (whilst deleting a bunch of
+	files, more of the btree can get pruned away than desired).
+
+1998-10-30  a sun  <asun@hecate.darksunrising.blah>
+
+	* dir.c: fixed a bunch of silliness with deletions. make sure to
+	zero out stuff and set mark_inode_dirty().
+	
+1998-10-29  a sun  <asun@hecate.darksunrising.blah>
+
+	* string.c (hfs_strcmp, hfs_streq, hfs_strhash): converted them to
+	take name/len arguments instead of hfs_name to reduce copying.
+
+	* dir.c, dir_nat.c, dir_cap.c, dir_dbl.c, sysdep.c: modified
+	relevant areas to reflect string.c changes.
+	
+1998-10-28  a sun  <asun@hecate.darksunrising.blah>
+
+	* hfs.h (hfs_lookup_dentry): oh my. more silliness. make sure to
+	have the d_lookup use the same hash value as the one generated by
+	hfs_hash_dentry. i also changed the argument order.
+	(hfs_drop_special): change the argument order to be more in line
+	with what the dcache stuff looks like.
+
+	* sysdep.c (hfs_compare_dentry): the compare was returning the
+	wrong value for correct matches and causing all sorts of
+	mischief. this fixes both directory counts and mounting on top of
+	hfs volumes.
+
+	* file.c, file_cap.c, file_hdr.c: added mark_inode_dirty()'s in
+	the relevant places.
+
+1998-10-11  root  <asun@hecate.darksunrising.blah>
+
+	* mdb.c (hfs_mdb_get): moved initialization of mdb->entry_dirty
+	list to here to deal with trying to read a bad hfs volume.
+
+1998-10-10  a sun  <asun@zoology.washington.edu>
+
+	* inode.c, catalog.c, dir_*.c, sysdep.c: parts of the dcache
+	conversion didn't get done properly. specifically, i forgot to
+	move the hfs_cat_puts into the right place. that's fixed now.
+
+1998-09-11  a sun  <asun@purgatorius.zoology.washington.edu>
+
+	* mdb.c: altered mdb struct to reflect hfs plus usage.
+
+1998-08-27  a sun  <asun@purgatorius.zoology.washington.edu>
+
+	* file.c, file_hdr.c, file_cap.c: dealt with the remaining
+	copy_to/from_user() error cases.
+
+1998-08-26  a sun  <asun@purgatorius.zoology.washington.edu>
+
+	* super.c (hfs_read_super): fixed to deal with cdroms. why doesn't
+	the cdrom layer call the partition table code?
+
+Wed Jan 21 14:04:26 1998  a sun  <asun@zoology.washington.edu>
+
+	* inode.c, sysdep.c
+	use d_iput to uncache dentry from catalog entry instead of relying
+	on put_inode. no more NULL pointer dereferences!
+
+	* catalog.c
+	cleaned up hfs_cat_put a little.
+	
+	ISSUES (non-fatal): mv dir dir2 while creating files in dir screws
+	                    up directory counts.
+		
+			    deletion using netatalk screws up directory
+ 			    counts.
+
+Thu Jan 15 19:14:28 1998  a sun  <asun@zoology.washington.edu>
+
+	* catalog.c
+	make deletion happen when requested instead of waiting until
+	an hfs_cat_put as the dcache can hold onto entries for quite
+	some time.
+
+Wed Jan 14 14:43:16 1998  a sun  <asun@zoology.washington.edu>
+	
+	* catalog.c
+	the current catalog allocation scheme allocates
+	PAGE_SIZE/sizeof(struct hfs_cat_entry) entries at a time and keeps
+	a pool of free entries up to this allocation unit * 8.
+
+	* inode.c
+	make sure to always hfs_cat_put if hfs_iget is going to return
+	NULL.
+
+	* string.c, catalog.c
+	use linux' hashing method to generate hashes. the old hashing was
+ 	getting collisions. catalog.c also has a larger hash table to
+ 	prevent collisions.
+	
+Tue Jan 13 13:06:01 1998  a sun  <asun@zoology.washington.edu>
+
+	* version.c
+	bumped to 0.95+asun3
+
+	* catalog.c
+	re-wrote to dynamically allocate/delete catalog entries. on a 486,
+	entries fit into the size-256 slab.
+
+Wed Jan  7 19:33:33 1998  a sun  <asun@zoology.washington.edu>
+
+	* inode.c 
+	don't hfs_cat_put gratuitously in hfs_iget. that's a bad
+ 	idea and results in screwed up entry counts.
+
+Tue Jan  6 14:38:24 1998  a sun  <asun@zoology.washington.edu>
+
+	* version.c
+	changed it to 0.95+asun2
+
+	* sysdep.c
+	altered catalog entry pruning to make sure that an iput
+	gets done. for some reason, shrink_dcache_parent wasn't
+	doing it.
+
+	* catalog.c
+	added a global dirty list to check for pruning.
+	
+Tue Jan  6 12:29:52 1998  a sun  <asun@zoology.washington.edu>
+
+	* catalog.c
+	re-wrote it to be similar to 2.1.x inode.c. this should
+ 	at least make catalog.c SMP safe. 
+
+	* hfs.h, linux/hfs_fs.h
+	moved dentry operations into hfs.h. these probably should
+	be moved somewhere else.
+
+	* super.c, dir_cap.c, dir_nat.c, dir_dbl.c, sysdep.c
+	added dentry ops to hash everything to lowercase.
+
+Sun Dec 28 22:48:53 1997  a sun  <asun@zoology.washington.edu>
+
+	* sysdep.c, catalog.c, hfs.h
+	as a temporary workaround until catalog.c gets re-written, 
+	i flush the dcache if we need more entries. 
+	
+Fri Dec 19 15:11:21 1997  a sun  <asun@zoology.washington.edu>
+
+	* dir_dbl.c
+	statically allocate tmp_name instead of doing it dynamically.
+
+	NOTE: well, those pesky hfs_cat_put messages still aren't gone. in
+	addition, catalog.c needs to be modified to free up some entries
+	when the cache gets filled up. 
+
+Sun Dec 14 11:51:11 1997  a sun  <asun@zoology.washington.edu>
+
+	* linux/hfs_fs.h
+	moved the dentry stuff into within the #ifdef __KERNEL__ 
+	part of hfs_fs.h and cleaned up a little.
+
+Sun Dec 14 11:24:54 1997  a sun  <asun@zoology.washington.edu>
+
+	* dir.c
+	changed hfs_rename to delete all old dentries. hfs_cat_put
+	messages on umount should be a thing of the past now.
+
+Sun Dec 14 01:12:58 1997  a sun  <asun@zoology.washington.edu>
+
+	* dir.c
+	changed mark_inodes_deleted to dget/d_delete/dput the dentry
+	instead of just dropping it. the bytes available should now
+	be updated properly upon deletion.
+
+Wed Dec 10 00:01:25 1997  a sun  <asun@zoology.washington.edu>
+
+	* dir.c
+	changed mark_inodes_deleted to drop the dentry instead of 
+	just deleting it. 
+
+	TODO: bytes available aren't being properly updated when a
+	resource fork gets deleted.
+
+Mon Dec  8 23:22:40 1997  a sun  <asun@zoology.washington.edu>
+
+	* dir_cap.c, dir_nat.c, dir_dbl.c, dir.c
+	* hfs.h, linux/hfs_sysdep.h, linux/hfs_fs_i.h
+	Added code to drop ({dbl,cap,nat}_drop_dentry) invalid
+	dentries when creating or moving a file.
+
+	* inode.c
+	Added code to delete cached dentries when a file gets deleted.
+
+	* current yuckiness: there's an extra hfs_cat_put somewhere. it's
+	harmless but bothersome.
+	
+Thu Dec  4 00:14:03 1997  a sun  <asun@zoology.washington.edu>
+
+	* dir.c, dir_cap.c, dir_nat.c, file.c, file_hdr.c, inode.c,
+	* linux/{hfs_sysdep.h, hfs_fs.h}, version.c:
+	Completed first code dentrification sweep. It mounts! It copies!
+	It dcaches! 
+
+Mon Apr 28 06:58:44 1997  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* version.c, INSTALL.sgml, HFS.sgml:
+	Bump version to 0.95 (Woohoo! We're beta!)
+
+	* linux/hfs_fs.h:
+	Modify HFS_SB() and HFS_I() when compiled into the kernel.
+
+	* FAQ.sgml:
+	Add a new question (and its answer):
+	Why does my Macintosh show generic application and document icons?
+
+	* HFS.sgml:
+	Add some URLs and remove the (now empty) FAQ section.
+
+Sun Apr 27 22:17:01 1997  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* HFS.sgml:
+	Don't call the version 1 headers "slightly modified".
+
+	* file_hdr.c, dir_nat.c:
+	Comment some AFPD compatibility stuff.
+
+	* FAQ.sgml:
+	Update for version 0.95.
+
+	* BUG_INFO:
+	Remove the BIG_INFO script since we no longer mention it.
+
+	* README.sgml, INSTALL.sgml, HFS.sgml, Makefile:
+	Split README.sgml into HFS.sgml and INSTALL.sgml.
+	Stop including the document sources in snapshots.
+
+	* file_hdr.c:
+	Fix hdr_truncate() not to truncate the data fork.
+
+Wed Apr 16 23:56:25 1997  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* FAQ.sgml:
+	Bump version to 0.8.4 and add two answers:
+		How to fsck an HFS filesystem.
+		How to generate linux/version.h.
+
+	* version.c, README.sgml:
+	Bump version to 0.8.4.
+
+	* README.sgml, FAQ.sgml, Makefile:
+	Separate the FAQ from the README.
+
+	* linux/hfs_fs.h:
+	Add (struct hfs_fork) to the forward declarations.
+
+Thu Apr 10 05:47:16 1997  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* linux/hfs_sysdep.h:
+	Work around the non-const declaration of test_bit()'s second argument.
+
+	* Makefile:
+	Use .config from the kernel source to check for MODVERSIONS.
+
+Wed Apr  9 07:57:17 1997  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* bnode.c:
+	Check the record table in each bnode as we read it from disk.
+
+	* super.c, mdb.c, hfs.h:
+	Deal with the ATTRIB_CLEAN bit of the MDB properly (in mdb.c).
+
+	* super.c, hfs.h, mdb.c:
+	Search for the alt-MDB rather than using the device size to find it.
+
+Wed Apr  9 03:39:05 1997  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* version.c, README.sgml:
+	Bump version to 0.8.3.
+
+Mon Apr  7 20:09:56 1997  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* part_tbl.c:
+	Fix to allow bootable CDROMs (which have blocksize != 512) to mount.
+
+	* super.c:
+	Check that blk_size[MAJOR(dev)] is non-NULL before dereferencing.
+
+Sat Apr  5 10:44:42 1997  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* hfs_btree.h, binsert.c, brec.c, bfind.c, bins_del.c, bdelete.c:
+	Make btree operations less likely to do
+	nasty things if the tree is corrupted.
+
+	* part_tbl.c, README.sgml:
+	Count partitions from 0 rather than from 1.
+
+Wed Apr  2 23:26:51 1997  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* bdelete.c:
+	Don't bother checking for oversized keys in hfs_bdelete().
+
+	* bdelete.c, bfind.c, binsert.c:
+	Verify key lengths against the maximum given for the tree.
+
+	* Makefile:
+	Check that /usr/include/linux/modversions.h exists before including it.
+	This allows compilation without CONFIG_MODVERSIONS enabled.
+
+Sat Mar 29 13:17:53 1997  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* linux/hfs_fs.h, super.c, file_hdr.c, hfs.h, extent.c, file_cap.c,
+	  dir_dbl.c, dir_nat.c, dir.c, dir_cap.c, binsert.c, catalog.c,
+	  bfind.c:
+	Make (struct hfs_bkey) and (struct hfs_brec) more "abstract".
+
+	* binsert.c:
+	Remove redundant test in hfs_binsert().
+
+Sat Mar 29 05:24:23 1997  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* version.c, README.sgml:
+	Fix formatting problems in README.sgml and bump version to 0.8.2.
+
+	* extent.c:
+	Fix bug that caused serious headaches with fragmented files.
+
+Fri Mar 28 00:23:18 1997  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* version.c, README.sgml:
+	Bump version to 0.8.1.
+
+	* btree.c, balloc.c:
+	Commit map nodes to buffers when new map nodes are added.
+
+Thu Mar 27 22:41:07 1997  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* Makefile:
+	Include linux/modversions.h from the gcc command line.
+
+	* mdb.c:
+	Was updating modified date twice in hfs_mdb_commit().
+
+	* linux/hfs_sysdep.h, linux/hfs_fs.h, linux/hfs_fs_i.h,
+	  linux/hfs_fs_sb.h, sysdep.c, trans.c, super.c, hfs_sysdep.h, inode.c,
+	  hfs_fs_i.h, hfs_fs_sb.h, hfs_fs.h, hfs.h, file_cap.c, file_hdr.c,
+	  file.c, dir_nat.c, dir_cap.c, dir_dbl.c, Makefile, dir.c:
+	Rearrange headers in preparation for inclusion in the kernel.
+
+	* hfs_fs_sb.h, hfs_fs.h:
+	Add forward declarations so other code can include these headers.
+
+	* hfs_sysdep.h:
+	Include __constant_hton[ls]() for little-endian machines.
+
+	* hfs_fs.h, hfs_sysdep.h, hfs.h:
+	Move typedefs of hfs_{byte,word,lword}_t from hfs.h to hfs_sysdep.h.
+	Include hfs_sysdep.h from hfs_fs.h.
+
+	* trans.c, super.c, part_tbl.c, string.c, inode.c, mdb.c, hfs_fs_sb.h,
+	  hfs_sysdep.h, hfs_fs.h, hfs.h, hfs_btree.h, file_cap.c, file_hdr.c,
+	  file.c, dir_nat.c, extent.c, dir_dbl.c, dir.c, dir_cap.c, catalog.c,
+	  btree.c, bnode.c, brec.c, bitmap.c, bitops.c, bins_del.c, binsert.c,
+	  bdelete.c, bfind.c, balloc.c:
+	Big type system changes in preparation for kernel inclusion:
+	'[US](8|16|32)' -> 'hfs_[us](8|16|32)' (avoids name space pollution)
+	'hfs_name_t' -> 'struct hfs_name' (allows forward declaration)
+
+	* super.c, hfs_fs.h:
+	Add init_hfs_fs() to super.c for non-module compilation.
+
+Wed Mar 26 07:53:59 1997  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* version.c, README.sgml:
+	Bump version to 0.8.
+
+	* README.sgml:
+	Special compilation note for DEC Alpha.
+
+	* README.sgml:
+	Note status on non-Intel processors.
+
+	* hfs_fs.h:
+	Use long's for read() and write() on the Alpha.
+
+	* README.sgml:
+	Document the afpd mount option.
+
+	* inode.c:
+	Make files always writable for owner in afpd mode.
+
+Tue Mar 25 23:21:39 1997  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* part_tbl.c:
+	Clean up the error checking code a bit.
+
+Sat Mar 22 19:43:40 1997  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* part_tbl.c:
+	Fixed uninitialized variable in old-style partition code.
+
+	* bins_del.c, bdelete.c:
+	Fix extraneous "bad argument to shift_{left,right}" messages.
+
+	* bitops.c:
+	Note that these routines are now tested on Intel, PPC and Alpha.
+
+	* Makefile:
+	Add -fno-builtin to the CFLAGS.
+
+Fri Feb 14 10:50:14 1997  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* hfs_sysdep.h:
+	Don't include <asm/*.h> until after <linux/types.h>.
+
+	* catalog.c:
+	Use volume create date in hashfn() rather than casting pointer to int.
+
+	* hfs.h, mdb.c:
+	Maintaing volume create, modify and backup dates in struct hfs_mdb.
+
+	* hfs_fs.h:
+	Include the header for put_user BEFORE using it!
+
+	* string.c, hfs.h:
+	Make hfs_strhash() return an unsigned int.
+
+	* trans.c, version.c, super.c, mdb.c, part_tbl.c, string.c, inode.c,
+	  hfs_sysdep.h, hfs_fs.h, hfs_fs_sb.h, hfs_btree.h, hfs.h, file_cap.c,
+	  file_hdr.c, extent.c, dir_dbl.c, dir_nat.c, dir_cap.c, dir.c,
+	  catalog.c, btree.c, bnode.c, brec.c, bitmap.c, binsert.c,
+	  bins_del.c, bdelete.c, balloc.c, README.sgml, Makefile:
+	Updated copyright notices.
+
+	* trans.c, part_tbl.c, string.c, super.c, inode.c, mdb.c, hfs_fs.h,
+	  hfs_fs_sb.h, hfs_sysdep.h, hfs_btree.h, hfs.h, file_cap.c,
+	  file_hdr.c, dir_nat.c, extent.c, dir_cap.c, dir_dbl.c, catalog.c,
+	  dir.c, brec.c, btree.c, bitmap.c, bnode.c, bdelete.c, bins_del.c,
+	  binsert.c, Makefile, TODO, balloc.c:
+	First shot at portability to the DEC Alpha and non-gcc compilers.
+	This involved a significant overhaul of the type system.
+
+Tue Feb  4 04:26:54 1997  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* version.c, README.sgml:
+	Bump version to "pre-0.8-4".
+
+	* dir_nat.c:
+	Allow creat() in Netatalk .AppleDouble directories.
+
+	* dir_dbl.c:
+	Make local functions static.
+
+	* dir_dbl.c:
+	Removed unnecessary 'extern' qualifiers from forward declarations.
+
+	* file_hdr.c, TODO:
+	Fixed the 30-year time warp with afpd.
+
+	* TODO, trans.c:
+	Don't mangle the name .AppleDesktop under fork=netatalk.
+
+Mon Feb  3 23:18:45 1997  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* inode.c:
+	Make header files always writable when the afpd mount option is given.
+	Otherwise it is impossible to unlock a locked file.
+
+	* TODO, inode.c:
+	Let afpd think chmod() always succeeds, so "New Folder" works right.
+
+	* super.c:
+	The 'afpd' mount option now makes 'fork=n,names=n' the default.
+
+	* TODO:
+	List the current known afpd-compatibility problems as bugs.
+
+	* file_hdr.c:
+	Make certain date changes through header files get written to disk.
+
+Sat Feb  1 02:24:12 1997  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* mdb.c:
+	Work around for Linux rounding device sizes to 1k increments.
+
+	* README.sgml:
+	Fixed a typo: "the a".
+
+Sat Dec 28 20:41:01 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* TODO:
+	Add ioctl() interface as a "missing feature."
+
+	* dir_nat.c:
+	Finish implementing the afpd-compatibility
+	mode using the new 'afpd' mount option.
+
+	* hfs_fs_sb.h, super.c:
+	Add new 'afpd' mount option.
+
+	* file_cap.c:
+	Spelling fix.
+
+Wed Dec 11 23:16:08 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* TODO, README.sgml:
+	Optimistically document the hybrid CD problem as fixed.
+
+	* part_tbl.c:
+	Fix the partition code so at least some of the hybrid
+	CDROMs that were previously rejected are now accepted.
+
+	* hfs.h:
+	Make fs_start a 32-bit integer rather than 16-bits.
+	The 16-bit value would overflow if a partition started
+	beyond the 32M mark (e.g. the Executor 2 Beta 1 CDROM).
+
+	* extent.c:
+	Fixed a typo in an error message.
+
+Tue Dec 10 14:43:46 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* dir_nat.c:
+	Merge in the (still dormant) afpd-compatibility changes.
+
+	* inode.c:
+	Make the .AppleDouble directory writable (again).
+
+	* version.c, README.sgml:
+	Bump version up to "pre-0.8-3".
+
+	* hfs_fs.h, file_cap.c, file_hdr.c:
+	Move AFP constants to hfs_fs.h and prefix them with "HFS_".
+
+	* dir_nat.c, inode.c:
+	Back-out changes that allowed writing to the .AppleDouble directory.
+
+	* Makefile:
+	Update rules for linuxdoc-sgml v1.5.
+
+	* extent.c:
+	Fixed serious bug in decode_extent() with handling of empty extents.
+
+	* file.c:
+	Rewrote hfs_getblk().
+	It will no longer hang if hfs_extent_map() is buggy.
+	Also halves the worst-case number of calls to hfs_extent_map().
+
+	* extent.c:
+	Fixed serious bug in decode_extent() with handling of empty extents.
+
+	* hfs_fs.h:
+	Small change so the PPC (and maybe other architectures?)
+	pick up the prototypes for the user-space access functions.
+
+	* super.c, file_cap.c, file_hdr.c, hfs_fs.h, file.c:
+	Updated for new user-space memory interface.
+
+Sun Dec  8 11:49:36 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* dir_nat.c:
+	Add special code for unlink(), and rename() in the .AppleDouble
+	directory and rmdir() of the .AppleDouble directory.
+
+	* inode.c:
+	Make the .AppleDouble directory writable.
+
+	* file_hdr.c:
+	Use AFP flags in version 1 headers (for Netatalk compatibility).
+
+	* trans.c:
+	Fixed bug with long names causing kernel Oops.
+
+Mon Oct  7 06:05:01 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* hfs_fs.h, file_cap.c, file_hdr.c, hfs.h, extent.c, file.c, dir.c:
+	Fix types for various read/write/truncate computations.
+	Also allows compilation with 2.1.x kernels.
+
+Thu Sep 19 10:28:43 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* README.sgml, version.c:
+	Bump version up to "pre-0.8-2".
+
+	* TODO:
+	Reformat the To Do list introducing prioritized categories.
+
+	* file_hdr.c, file.c:
+	Move comments about mmap() for headers from file.c to file_hdr.c.
+	Also revise the reasoning for not yet having it implemented.
+
+	* dir_nat.c, dir_cap.c, dir_dbl.c:
+	Remove 'hfs_' prefix from names of some purely local functions.
+
+	* dir_dbl.c, TODO:
+	Under AppleDouble make create(), mkdir(), mknod(), unlink(), rename()
+	and rename() check against header files when arguments start with '%'.
+
+	* super.c, hfs_fs_sb.h, hfs_fs.h, dir_dbl.c, dir_nat.c, dir_cap.c,
+	  dir.c, README.sgml:
+	Fix problem that prevented creating %RootInfo or .rootinfo in all
+	directories in addition to preventing deletion from the root directory.
+
+	* TODO:
+	Remove writable header files from the To Do list.
+
+	* README.sgml:
+	Add extensive discussion of writing to HFS filesystems and
+	the format of the special files.
+
+	* file_hdr.c:
+	Generate the 'homefs' field for version 1 header files.
+
+Wed Sep 18 23:07:45 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* hfs_fs.h, file_cap.c:
+	Comment the definition of (struct hfs_cap_info).
+
+	* version.c, README.sgml:
+	Bump version up to "pre-0.8-1" and update the "How can I write?" FAQ.
+
+	* file_hdr.c:
+	Implement hdr_write() and hdr_truncate()!!
+
+	* hfs_fs_i.h, inode.c:
+	Make hdr_layout per-inode (not per-file) so hdr_truncate() will work.
+
+	* file.c, hfs.h, catalog.c, extent.c, balloc.c:
+	hfs_extent_adj() now uses fork->lsize to determine the target file size.
+
+Sun Sep 15 07:55:24 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* README.sgml, trans.c:
+	Prevent creation of files & directories with '\0' or ':' in their names.
+
+	* string.c, hfs_fs.h, hfs.h, dir_dbl.c, dir_nat.c, dir_cap.c:
+	With case=lower could have run off end of string.
+
+Tue Sep 10 12:05:47 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* inode.c:
+	Small clean up of HFS_FIL_LOCK handling.
+
+	* inode.c:
+	Fix notify_change() not to accidentally make metadata executable.
+
+	* hfs_fs.h:
+	AppleSingle files should have HFS_ITYPE_NORM.
+
+	* inode.c:
+	Return to old behavior where MdDat = i_mtime.
+
+	* dir_dbl.c:
+	Fix serious bug in hfs_dbl_readdir() that would lock-up access to a
+	directory if one tried to write to a directory they had previously read.
+
+	* file.c:
+	Fix hfs_do_write() to adjust the fork's 'lsize' if it changed.
+
+	* inode.c, file_cap.c:
+	Allow truncate() to be called even on metadata.
+	Any size changes will last only until the next iput() of the inode.
+	Truncating a header file doesn't yet truncate the resource fork.
+
+	* inode.c:
+	Allow chmod() on a directory if it doesn't actually change i_mode.
+
+	* hfs_fs.h, trans.c, super.c:
+	Rename hfs_cap2mac() to hfs_colon2mac().
+	Rename hfs_apl2mac() to hfs_prcnt2mac().
+
+	* file_hdr.c:
+	Move header construction out of hdr_read() to create hdr_build_meta().
+
+	* hfs.h:
+	Add byte-order independent conversions: U32->U16, U32->U8 and U16->U8.
+
+	* file.c, file_cap.c, hfs_fs.h:
+	Rename fix_perms() to hfs_file_fix_mode() and
+	move it from file_cap.c to file.c.
+
+	* README.sgml, super.c:
+	Make the default for the names mount option vary with the fork option.
+
+	* file_cap.c:
+	The umask was applied incorrectly in fix_perms().
+
+Mon Sep  9 13:11:28 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* README.sgml:
+	Note that it compiles on m68k machines, but needs more testing.
+
+	* hfs_sysdep.h, Makefile:
+	Changes to compile unmodified on m68k (and possibly other machines).
+
+	* dir_cap.c:
+	hfs_cap_readdir() was mistakenly producing .rootinfo entries for
+	the .finderinfo and .resource subdirectories of the root directory.
+
+	* inode.c:
+	A directory's i_size was too small by 1 under CAP, so hfs_cap_readdir()
+	would omit the last directory entry.  i_nlink was also too large by 1.
+
+Sun Sep  8 12:56:06 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* file_hdr.c:
+	Rewrite hdr_read() to be more efficient and to deal correctly with
+	descriptors having lengths that differ from the actual size of the data.
+
+	* file_cap.c:
+	Add write support for CAP finderinfo files!!
+
+	* super.c, inode.c, hfs_fs.h, hfs_fs_i.h, hfs_fs_sb.h, file_dbl.c,
+	  file_nat.c, file_hdr.c, file.c, file_cap.c, Makefile, dir.c:
+	Generate metadata (header files and CAP finderinfo files) on-the-fly.
+	The files file_{dbl,nat}.c are merged into file_hdr.c as a result.
+
+Sat Sep  7 08:09:24 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* README.sgml:
+	Fix silly grammatical error.
+
+Fri Sep  6 09:17:12 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* hfs_fs_sb.h, super.c:
+	No need to cast type of s_reserved.
+
+	* file_dbl.c, file_nat.c, dir_dbl.c, dir_nat.c, file_cap.c, dir_cap.c:
+	Add the missing NULL readpage and writepage entries to the inode_ops.
+
+	* file_dbl.c, file_nat.c, file.c, file_cap.c:
+	Cleanup error checking for read() and write().
+
+Thu Sep  5 05:29:53 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* version.c, README.sgml:
+	Bump version up to "0.7.2".
+	User-visible changes from 0.7.0:
+	+ Corrected CAP finderinfo file format.
+	+ Support for more features of CAP finderinfo files.
+	+ No longer requires gcc 2.7.0 or newer.
+	+ Now implements mknod() system call.
+
+	* hfs_fs.h, dir_nat.c, file_cap.c, file_nat.c, README.sgml, dir_cap.c:
+	Include the CAP and Netatalk copyright notices.
+
+	* hfs_fs.h, file_cap.c:
+	Repair and improve CAP support.
+
+	* catalog.c:
+	Oops! The BkDat for new files and directories was in 1972 when
+	it should have been in 1904 (not that it matters that much).
+
+	* inode.c:
+	The HFS MdDat should be the larger of the i_mtime and i_ctime.
+
+	* README.sgml:
+	Change 'm_time' to 'i_mtime'.
+
+Wed Sep  4 13:27:35 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* version.c, README.sgml:
+	Bump version up to "0.7.1".
+	User-visible changes from 0.7.0:
+	+ Minor bug in CAP finderinfo file format fixed.
+	+ No longer requires gcc 2.7.0 or newer.
+	+ Now implements mknod() system call.
+
+	* README.sgml:
+	Removed note about needing gcc 2.7.0 or newer.
+
+	* file.c:
+	Optimize hfs_do_read() based on the fact that HFS has no holes in files.
+	Minor code formatting changes.
+
+	* hfs.h, hfs_sysdep.h, mdb.c, extent.c, file.c, btree.c, catalog.c,
+	  balloc.c, bnode.c:
+	Reorganize memory management routines.
+	hfs_malloc() and hfs_free() are the main routines.
+	The macros FREE() and MALLOC() are gone.
+	HFS_NEW() and HFS_DELETE() are new 'shorthand' macros.
+
+	* btree.c:
+	Fix broken debugging code.
+
+	* super.c, hfs.h, mdb.c, part_tbl.c, Makefile:
+	Separate partition table handling into its own file.
+
+	* dir.c:
+	Spelling fixes.
+
+	* sysdep.c:
+	Oops!  Error check got sense reversed while editing.
+
+	* mdb.c, sysdep.c, hfs.h, hfs_btree.h, hfs_sysdep.h, btree.c, extent.c,
+	  bfind.c, bnode.c, balloc.c:
+	Make hfs_buffer a pointer to a buffer_head, rather than a buffer_head.
+
+	* hfs_fs.h, dir_cap.c, dir_dbl.c, dir_nat.c, dir.c:
+	Add a mknod() entry to the inode_operations for normal directories.
+	All it is good for is letting root create regular files.
+
+	* file_dbl.c, file_nat.c, file.c, file_cap.c, dir_cap.c, dir_dbl.c,
+	  dir_nat.c:
+	Add the missing NULL entries to the end of the file_operations.
+
+	* super.c, hfs_btree.h, hfs_fs.h, mdb.c, extent.c, hfs.h, catalog.c:
+	Make the remainder of the (untested) changes
+	to allow compilation with gcc 2.6.3.
+
+	* hfs_fs.h:
+	Fix hfs_fs.h to work with gcc 2.6.3.
+
+	* hfs_fs.h:
+	(struct hfs_cap_info) should never have been 'packed'.
+
+	* BUG_INFO:
+	Use -V for getting version of module utilities.
+
+	* super.c, sysdep.c, trans.c, hfs_fs_sb.h, inode.c, hfs_fs.h,
+	  hfs_fs_i.h, file_cap.c, file_dbl.c, file_nat.c, dir_dbl.c,
+	  dir_nat.c, file.c, dir.c, dir_cap.c:
+	Fix up hfs_fs{,_i,_sb}.h in preparation for inclusion in kernel.
+
+Tue Sep  3 23:58:03 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* hfs.h:
+	Change eventual destination to linux/fs/hfs rather than include/linux.
+
+	* super.c, inode.c, mdb.c, hfs_btree.h, hfs_fs.h, hfs_sysdep.h,
+	  file_dbl.c, file_nat.c, hfs.h, dir_nat.c, extent.c, dir_dbl.c,
+	  catalog.c, dir_cap.c, brec.c, btree.c, binsert.c, bnode.c, bdelete.c,
+	  bfind.c, bins_del.c, balloc.c:
+	Replace all the swap{16,32}() stuff w/ ntohl() and friends.
+
+Fri Aug 30 09:51:23 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* version.c, README.sgml:
+	Rewrite installation instructions and bump version up to "0.7.0".
+
+	* Makefile:
+	Remove the INCDIR variable; we now rely on the
+	user to have the correct links in /usr/include.
+
+Mon Aug 26 12:25:41 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* version.c, README.sgml:
+	Reformat the documentation and bump version up to "pre-0.7-9".
+	Hopefully this will become version 0.7 in a few days.
+
+Thu Aug 22 08:00:44 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* README.sgml, version.c:
+	Bump version up to "pre-0.7-8".
+
+	* file_nat.c, file_dbl.c:
+	AppleDouble headers had resource fork size in wrong byte order.
+
+Wed Aug 21 05:22:28 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* version.c, README.sgml:
+	Bump version up to "pre-0.7-7".
+
+	* bnode.c:
+	Fixed a long-standing bug in hfs_bnode_lock().
+	This bug occasionally caused lock-up under heavy load.
+
+Tue Aug 20 09:15:10 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* README.sgml, version.c:
+	Bump version up to "pre-0.7-6".
+
+	* catalog.c:
+	Fix a deadlock problem in catalog readers/writers locking.
+
+	* bins_del.c:
+	hfs_bnode_update_key() was still corrupting the header node sometimes.
+
+	* catalog.c, dir.c:
+	Fix problem with extending the catalog B-tree hanging hfs_cat_commit().
+	Fix a race that could delete a non-empty directory.
+
+Sun Aug 18 23:16:43 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* version.c, README.sgml:
+	Bump version to "pre-0.7-5" for test release.
+
+	* dir_cap.c, README.sgml:
+	Change ".:rootinfo:" to ".rootinfo".
+
+	* hfs_fs.h, dir_cap.c, dir_dbl.c, dir_nat.c:
+	Mangle the names as first step in hfs_{cap,dbl,nat}_lookup().
+	Use the new hfs_streq() to catch mixed case matches to the special
+	files and directories in hfs_{cap,dbl,nat}_lookup().
+	Store reserved names only once.
+
+	* dir.c, hfs.h, string.c:
+	Implement hfs_streq() which tests for string equality more
+	rapidly than hfs_strcmp() by checking for equal length first,
+	and use it when checking for reserved names.
+
+	* inode.c, TODO, dir_cap.c, dir_dbl.c, README.sgml:
+	Provide the metadata for the root directory for the CAP and AppleDouble
+	schemes in the files ".:rootinfo:" and "%RootInfo", respectively.
+
+	* TODO, super.c:
+	Add (untested) support for the old Mac Plus style of partition map.
+
+	* bdelete.c, TODO:
+	Note the possibility of bdelete() to hanging on a corrupted B-tree.
+
+	* TODO:
+	Add items corresponding to some of the 'XXX' comments in the sources.
+
+	* dir_dbl.c, dir_cap.c:
+	Update comments, removing ref. to a comment that once existed in inode.c
+
+	* catalog.c:
+	Remove some redundant locking and error checks
+	that had been previously marked as questionable.
+
+Sat Aug 17 08:06:56 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* binsert.c, bfind.c, bins_del.c, balloc.c, bdelete.c:
+	Edited some comments for correctness.
+
+	* README.sgml, version.c:
+	Bump version up to "pre-0.7-4" in preparation for snapshot release.
+
+	* Makefile:
+	Have 'make dep' delete the *.o and *.s files.
+
+	* catalog.c, hfs.h, TODO, bfind.c:
+	Move looping from hfs_cat_next() into hfs_bsucc(),
+	where it can be done an entire node at a time.
+
+Fri Aug 16 05:02:59 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* TODO:
+	Add AppleShare support to the list of goals.
+
+	* trans.c, super.c, hfs_fs.h, README.sgml:
+	Add a "names=netatalk" mount option, since
+	Netatalk quotes initial periods and CAP doesn't.
+
+	* Makefile:
+	Oops! Had removed the 'include .depend' from Makefile.
+
+	* inode.c, hfs_fs.h, file_nat.c, file_dbl.c, file.c, dir_nat.c,
+	  dir_dbl.c, dir_cap.c, dir.c, README.sgml:
+	Update for 2.0.1 and newer kernels.
+
+	* Makefile:
+	Get rid of ifeq stuff and use a .tmpdepend file to make sure
+	a failed 'make depend' doesn't allow a 'make hfs.o'.
+
+Wed Aug 14 01:03:01 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* version.c, README.sgml:
+	Bump version up to "pre-0.7-3" in preparation for snapshot release.
+
+	* btree.c, extent.c, bnode.c:
+	Fix up some debugging code.
+
+Tue Aug 13 12:42:12 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* version.c, README.sgml:
+	Bump revision to "pre-0.7-2".
+
+	* super.c, sysdep.c, mdb.c, file_nat.c, inode.c, file_cap.c,
+	  file_dbl.c, file.c, extent.c, dir.c, catalog.c, btree.c, bnode.c,
+	  balloc.c:
+	Added the remaining missing function comments.
+
+	* Makefile, README.sgml:
+	Simplify the default make rule to build the dependency file AND hfs.o.
+	Change the installation instructions to reflect the change.
+
+	* hfs.h:
+	Added missing structure comments.
+
+	* bdelete.c:
+	Merge bdelete_brec() back into hfs_bdelete().
+	Add missing function comments.
+
+
+	* extent.c:
+	Insignificant code change removing an unneeded indirection.
+
+	* btree.c, hfs_btree.h, balloc.c, bnode.c:
+	Add a 'sys_mdb' field to (struct hfs_btree).
+
+	* extent.c, hfs_sysdep.h, sysdep.c, bnode.c, balloc.c, bfind.c,
+	  Makefile:
+	Move hfs_buffer_read() from hfs_sysdep.h to sysdep.c so it can use
+	the symbol HFS_SECTOR_SIZE rather than the manifest constant 512.
+	Have hfs_buffer_read() print an error message,
+	and remove redundant errors from the callers.
+
+	* hfs_sysdep.h, mdb.c, super.c, file.c, hfs.h, hfs_btree.h, catalog.c,
+	  extent.c, btree.c, balloc.c, bfind.c, bnode.c:
+	Get rid of the type hfs_device and the fields of that type,
+	using the type hfs_sysmdb and the 'sys_mdb' field in its place.
+
+	* Makefile:
+	Fix definition of HDRS variable.
+
+	* README.sgml, version.c:
+	Bump version up to "pre-0.7-1".
+
+	* Makefile:
+	Separate sources and headers into three groups:
+	B-tree code, HFS code and Linux code.
+
+	* bitmap.c, bitops.c, hfs.h, hfs_sysdep.h, balloc.c:
+	Implemented portable set of bit operations in hfs_sysdep.h
+
+	* mdb.c, hfs_sysdep.h, hfs_btree.h, extent.c, btree.c, bitmap.c,
+	  bnode.c, balloc.c:
+	Implement a portable set of buffer operations in hfs_sysdep.h
+
+	* TODO:
+	Remove note about separating header files into two parts.
+
+	* catalog.c:
+	Remove call to hfs_mdb_dirty(), since the hfs_brec_relse() does it.
+
+	* hfs.h, extent.c, file.c:
+	Move hfs_getblk() from extent.c to file.c, since that is now the
+	only file that actually uses it.
+
+	* balloc.c:
+	Replace use of hfs_getblk() in balloc.c with a local function
+	(get_new_node()) that doesn't retry, since B-trees can't shrink.
+
+	* hfs.h, hfs_btree.h, hfs_sysdep.h, mdb.c, extent.c:
+	Make hfs_buffer a typedef.
+
+	* inode.c, hfs.h, hfs_sysdep.h, dir.c:
+	Change hfs_sysentry to a typedef.
+	Rename 'sysentry' field of (struct hfs_cat_entry) to 'sys_entry'.
+
+	* super.c, mdb.c, catalog.c:
+	Rename hfs_cat_sync() to hfs_cat_commit() and call it
+	from hfs_mdb_commit() rather than from hfs_write_super().
+
+	* catalog.c, file.c:
+	Minimize the calls to hfs_mdb_dirty().   Now called when:
+	1) A buffer holding a volume bitmap block is dirtied.
+	2) A dirty B-tree node is written back to the buffers.
+	3) A dirty catalog entry is written back to the buffers.
+
+	* hfs_sysdep.h, hfs.h:
+	Make hfs_sysmdb a typedef.
+
+Sun Aug 11 08:46:10 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* hfs_sysdep.h, extent.c, hfs.h:
+	Replace hfs_mdb_{lock,unlock} with more portable
+	scheme using a wait queue in the MDB.
+
+	* hfs.h, hfs_btree.h, hfs_sysdep.h, bnode.c, catalog.c, binsert.c:
+	Make hfs_wait_queue a typedef'd pointer to a (struct wait_queue).
+	Rename hfs_wait_on() to hfs_sleep_on().
+
+	* catalog.c, hfs_sysdep.h, super.c, bfind.c, bnode.c, balloc.c:
+	Implemented hfs_dev_name() in hfs_sysdep.h
+	as a portable call to produce a device name.
+
+	* super.c, hfs.h, mdb.c:
+	Rename hfs_mdb_read() to hfs_mdb_get(), and don't take a
+	'sys_mdb' argument.  That's the callers responsibility.
+
+	* sysdep.c, Makefile:
+	Remove the pointless file sysdep.c
+
+	* README.sgml:
+	Clean up the "System Requirements" section.
+
+Sat Aug 10 22:41:24 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* sysdep.h, sysdep.c, super.c, hfs_sysdep.h, mdb.c, string.c,
+	  hfs_fs.h, hfs_fs_i.h, hfs_fs_sb.h, hfs_btree_private.h, hfs_btree.h,
+	  file_cap.c, file_dbl.c, file_nat.c, hfs.h, file.c, dir_nat.c,
+	  extent.c, dir.c, dir_cap.c, dir_dbl.c, catalog.c, bnode.c, brec.c,
+	  btree.c, binsert.c, bitmap.c, bitops.c, bfind.c, bins_del.c,
+	  Makefile, balloc.c, bdelete.c:
+	Includes the hfs.h that was missing from the previous check in.
+	MAJOR include-file cleanup:
+		hfs_btree.h merged into hfs.h
+		hfs_btree_private.h renamed hfs_btree.h
+		sysdep.h renamed hfs_sysdep.h
+	Fixed some minor portability fixes shown up by the header split.
+
+	* README.sgml:
+	Add instructions for a dealing with a missing linux/version.h
+
+	* hfs_fs.h, mdb.c, string.c, catalog.c, extent.c, btree.c, bitmap.c,
+	  bitops.c, bnode.c, brec.c, bins_del.c, binsert.c, bdelete.c, bfind.c,
+	  balloc.c:
+	Major split of hfs_fs.h into Linux-specific
+	part (hfs_fs.h) and HFS-specific part (hfs.h).
+
+	* file.c, extent.c:
+	Move hfs_getblk() from file.c to extent.c
+
+	* sysdep.h, super.c, mdb.c, hfs_fs_sb.h, hfs_fs.h, file.c, extent.c,
+	  catalog.c, bnode.c, bitmap.c:
+	Make the field 's_mdb' in (struct hfs_sb_info) a pointer to
+	the MDB, rather than the actual MDB.  This allowed the definition
+	of (struct hfs_mdb) to be moved from hfs_fs_sb.h to hfs_fs.h.
+
+	* ccache.c, hfs_fs.h, Makefile, catalog.c:
+	Merged ccache.c and catalog.c into the latter.
+	Moved definition of (struct hfs_cat_rec) into catalog.c
+
+	* extent.c:
+	Oops!  Last set of changes didn't compile but they're OK now.
+
+	* hfs_btree.h, hfs_fs.h, mdb.c, ccache.c, extent.c, btree.c:
+	Move the definition of (struct hfs_raw_extent) inside
+	extent.c and treat it as simple array of U16's elsewhere.
+
+	* hfs_fs.h, dir_dbl.c, dir_nat.c, ccache.c, catalog.c, dir_cap.c:
+	Make hfs_cat_next() return the CNID and cdrType of the entry.
+	Now catalog.c and ccache.c are the only files which
+	depend on the structure of a catalog record on disk.
+
+	* dir.c, hfs_fs.h, catalog.c:
+	Replace hfs_cat_new_{file,dir}() with hfs_cat_{create,mkdir}()
+	which are wrappers for what used to be hfs_cat_create().
+
+	* hfs_fs.h, mdb.c, super.c, Makefile:
+	Split super.c into super.c (Linux stuff) and mdb.c (MDB stuff).
+
+	* super.c, hfs_fs_sb.h:
+	Add the MDB field 'drAtrb' to (struct hfs_mdb) as the field 'attrib'.
+
+	* hfs_fs_sb.h, super.c:
+	Split hfs_read_super() into hfs_read_super() and hfs_mdb_read().
+
+	* super.c, hfs_fs_sb.h:
+	Remove the unneeded 'hs' field from (struct hfs_mdb).
+
+	* TODO:
+	Remove item about hfs_notify_change() needing to update metadata.
+
+	* inode.c, hfs_fs.h, hfs_fs_sb.h, file_cap.c, file_dbl.c, file_nat.c,
+	  file.c, dir.c:
+	Add a flags argument to hfs_{cap,dbl,nat}_buildmeta() so that
+	it only builds the parts that are currently out-of-date.
+	Call hfs_{cap,dbl,nat}_buildmeta() through hfs_update_meta()
+	in hfs_notify_change() and hfs_rename() to update the metadata.
+
+	* dir.c:
+	Make test for normal dir in update_dirs_{plus,minus}() more explicit.
+
+	* inode.c, file_cap.c, file_dbl.c, file_nat.c, dir_dbl.c, dir_nat.c,
+	  file.c, README.sgml, dir_cap.c:
+	Resolve the "meta-data" vs. "metadata" rivalry in favor of the latter.
+
+	* btree.c:
+	Simplify some debugging code.
+
+	* hfs_btree_private.h, bnode.c, btree.c, balloc.c:
+	Put the in-core copy of the header node IN the
+	B-tree structure rather than just a pointer to it.
+
+	* hfs_btree_private.h, btree.c, bnode.c:
+	Have hfs_btree_commit() call hfs_bnode_commit()
+	to commit the header and root nodes.
+
+	* hfs_fs.h, super.c, hfs_btree_private.h, btree.c, hfs_btree.h,
+	  balloc.c:
+	Change hfs_commit_mdb() to hfs_mdb_commit().
+	Make hfs_mdb_commit() call hfs_btree_commit().
+	Move code to update B-tree size and extent
+	from hfs_btree_extend() to hfs_btree_commit().
+	Make hfs_btree_extend() call hfs_mdb_commit().
+
+	* super.c:
+	Change hfs_commit_super() to hfs_commit_mdb().
+
+	* btree.c, bnode.c, bfind.c:
+	Fixed up broken debugging code and error messages.
+
+	* super.c, hfs_btree_private.h, btree.c, hfs_btree.h, bdelete.c,
+	  binsert.c, balloc.c:
+	Now use write-back caching of B-tree header fields.
+
+	* hfs_fs.h:
+	Get rid of the add{16,32}() inlines as they are no longer used.
+
+	* hfs_btree_private.h, binsert.c, btree.c, bdelete.c, bfind.c, balloc.c:
+	All the needed fields of the B-tree header are
+	now cached for reading, but not yet writing.
+
+	* TODO:
+	Remove "Implement write count" from TODO list.
+
+	* file.c, super.c, bnode.c:
+	Implement write count.
+
+	* catalog.c:
+	Fix directory entry counting in hfs_cat_move().
+
+	* balloc.c:
+	Simplify hfs_btree_extend(), since the allocation
+	request will get rounded up to the clumpsize.
+
+	* extent.c:
+	Honor clumpsize when allocating blocks to files.
+
+	* file_cap.c, file_dbl.c, file_nat.c, super.c, dir.c, file.c,
+	  ccache.c, catalog.c, balloc.c:
+	Mark 44 functions in need of commenting.
+
+	* hfs_fs_sb.h, super.c, extent.c, hfs_fs.h, ccache.c, btree.c, balloc.c:
+	Record clumpsize in allocation blocks rather than 512-byte blocks.
+
+	* sysdep.h, super.c, TODO, balloc.c, hfs_fs_sb.h:
+	Now updates the backup MDB when a B-tree grows.
+
+	* extent.c:
+	hfs_extent_free() had test against NULL backward.
+	The result is that access to a file with extents in the extents
+	B-tree would result in an infinite loop in hfs_cat_put().
+
+	* hfs_fs_sb.h, super.c, hfs_fs.h:
+	Reorganize partition map code to get size of partition
+	in preparation for dealing with the alternate MDB.
+
+Fri Aug  9 03:25:13 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* Makefile:
+	Add make rules for README.{ps,info}
+
+	* README, README.sgml, DOC, FAQ, Makefile, .cvsignore, 
+	Merge CHANGES into ChangeLog.
+	Merge DOC, FAQ and README into README.sgml.
+	Add make rules for building README.{txt,dvi}
+
+	* BUG_INFO, Makefile:
+	Added a BUG_INFO script which attempts to collect some useful
+	information which I'd like to see in every bug report I receive.
+
+	* Makefile, version.c:
+	Added version.c which contains a version string.
+
+Thu Aug  8 21:48:24 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* trans.c:
+	Fix Latin-1 -> Macintosh filename mapping to change colons to pipes.
+
+	* trans.c:
+	Fixed Mac->Latin-1 translation to behave as documented for the
+	extended 8-bit characters without corresponding Latin-1 characters.
+
+	* inode.c, super.c, file.c, hfs_fs_i.h, hfs_fs_sb.h, DOC:
+	Added a conv={binary,text,auto} mount option similar to that of the
+	msdos, hpfs and iso9660 filesystems, but applying only to data forks.
+	As compared to those filesystems, HFS has the advantage that only a
+	single CR need be converted to a NL, rather than a CR/NL sequence, so
+	it is quite safe to seek in the file.
+	Additionally the 'Type' field is far more reliable indicator of text
+	files than a file extension.
+
+	* super.c:
+	Simplified parsing of mount options.
+
+	* super.c:
+	Oops!  The part=<n> mount option was being parsed in octal!
+
+	* TODO:
+	Remove "case=lower" from the list of goals.
+
+	* super.c, hfs_fs.h, hfs_fs_sb.h, string.c, dir_dbl.c, dir_nat.c,
+	  dir_cap.c, DOC:
+	Resurrect the case={asis,lower} mount option.
+
+	* dir.c:
+	Simpler test for "normal" directory in update_dirs_{plus,minus}().
+
+	* hfs_fs_sb.h, super.c, dir.c, hfs_fs.h, catalog.c, DOC:
+	Add mount options to specify what Type and Creator will be used for
+	new files and change the default from NULLs to "????".
+
+Wed Aug  7 11:32:22 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* catalog.c:
+	In hfs_cat_next() use entry->cnid rather than the key of the initial
+	brec to identify the end of the directory.
+
+	* README:
+	Update for pre-0.7 version.
+
+	* hfs_fs.h:
+	Create versioned module if CONFIG_MODVERSIONS is set in linux/config.h
+
+	* TODO:
+	Note need for special steps for unaligned accesses on some machines.
+
+	* FAQ:
+	Added Q0: What is HFS?
+	Added Q7: Does hfs_fs work w/ 400k and 800k diskettes?
+	Brought Q6 (about writability) up to date.
+	Made a few other answers more verbose.
+
+Tue Aug  6 00:58:46 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* Makefile:
+	Changed 'snapshot' rule to include cvs tag command.
+
+	* hfs_fs.h, dir_cap.c, dir_dbl.c, dir_nat.c, catalog.c, ccache.c:
+	Implemented readers half of dir locking scheme so readdir() should
+	produce consistent results and count_dir_entries() is not race prone.
+
+	* catalog.c:
+	hfs_cat_move() was calling hfs_cat_decache() after changing
+	the key rather than before, corrupting the hash lists.
+
+Mon Aug  5 14:03:46 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* hfs_fs.h, catalog.c:
+	Implemented the writers half of a locking scheme for directories.
+
+	* inode.c:
+	Fixed a serious bug in hfs_notify_change() that would allow a chmod()
+	on directory meta-data and would cause the directory inode (if it was
+	in memory at the time) to change into a file inode.
+
+	* inode.c:
+	Fixed a problem with write permissions on directory meta-data.
+
+	* dir_dbl.c, dir_nat.c, dir_cap.c:
+	hfs_{cap,dbl,nat}_readdir() now return the correct value in the 'd_ino'
+	field of the dirent for all cases, something I think has always been
+	done incorrectly until now.
+
+	* dir_nat.c, inode.c, dir_cap.c:
+	In hfs_{cap,nat}_lookup() take advantage of the
+	'file_type' field of (struct hfs_inode_info).
+
+	* TODO:
+	Removed two accomplished goals (rename() and improved readdir()).
+
+	* inode.c, dir_dbl.c, dir_nat.c, hfs_fs_i.h, dir.c, dir_cap.c:
+	Rewrite hfs_{cap,dbl,nat}_readdir() to take advantage of hfs_cat_next().
+	They now use a uniform 'i_size' for all inodes for a given directory.
+	This simplifies update_dirs_{plus,minus}() and eliminates the need for
+	the 'file_size' and 'dir_link' fields of (struct hfs_inode_info).
+	For the CAP and Netatalk schemes the meta-data directories are now the
+	last entries rather than coming just after '.' and '..'.  This is in
+	preparation for the day when we can write to the files in those
+	directories, and ensures that when using 'tar' to copy HFS filesystems
+	the file or directory will be created before the meta-data is written.
+	Otherwise we could be stuck writing meta-data and not knowing if it is
+	for a file or a directory!
+
+	* ccache.c:
+	Updated count_dir_entries() for new hfs_cat_next().
+
+	* hfs_fs.h, catalog.c:
+	hfs_cat{nth,next}() no longer take a 'types' argument,
+	so they now return all entries.
+	hfs_cat_next() now uses the ParID of the key to detect
+	the end of the directory.
+	hfs_cat_nth() now accepts n=0 as a valid input, requesting the thread.
+
+	* trans.c, string.c, super.c, dir_nat.c, hfs_fs.h, dir.c, dir_cap.c,
+	  dir_dbl.c, catalog.c:
+	Rename (struct hfs_cname) to the more appropriate (struct hfs_pstr).
+
+	* hfs_fs.h, hfs_btree.h:
+	Move some constants from hfs_fs.h to hfs_btree.h
+
+	* bdelete.c, hfs_btree.h:
+	Remove hfs_bdelete_brec() from public B-tree interface.
+
+	* hfs_btree_private.h, hfs_fs.h, btree.c, hfs_btree.h, bnode.c, brec.c,
+	  bfind.c, bins_del.c, binsert.c, balloc.c, bdelete.c, Makefile:
+	Split B-tree stuff into public and private parts:
+		brec.c split into bfind.c and brec.c
+		hfs_btree.h split into hfs_btree.h and hfs_btree_private.c
+
+	* inode.c:
+	The tests and sets of the HFS_FIL_LOCK bit where all reversed!
+
+	* hfs_fs.h, ccache.c:
+	Redo some ccache stuff, removing the 'error' field from
+	(struct hfs_cat_entry) and ensuring that hfs_cat_put()
+	will not sleep on an uninitialized entry.
+
+Sun Aug  4 23:43:28 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* sysdep.h:
+	Change swap{16,32}() back to macros since hton[ls]() are functions.
+
+	* hfs_fs.h, ccache.c:
+	Use only lowest order byte of parent CNID in hashing a catalog key.
+
+	* bdelete.c:
+	The "improved" bdelete() was TOO paranoid looking for missing parents.
+
+	* ccache.c:
+	Get rid of pointless swap16const(0).
+
+	* hfs_fs.h, inode.c, extent.c, ccache.c, dir_cap.c, dir_nat.c,
+	  binsert.c, catalog.c:
+	Store cnid and associated constants in big-endian byte order.
+	This reduces the number of byte-order swaps required.
+
+	* sysdep.h:
+	Make swap32() and swap16() inline functions.
+
+	* dir_nat.c, dir_cap.c, dir_dbl.c:
+	Added hfs_rename() to the inode_operations for normal directories.
+
+	* dir.c, hfs_fs.h:
+	Added hfs_rename() and cleaned up hfs_{create,mkdir,unlink,rmdir}().
+
+	* catalog.c:
+	Added the missing check for moving a directory into itself.
+
+	* catalog.c, ccache.c, hfs_fs.h:
+	Implement a nearly ideal hfs_cat_move().
+	It still needs to prevent moving a directory into itself.
+	The functions hfs_cat_{create,delete,move}() still need work with
+	respect to their atomicity (especially vs. readdir).
+
+	* bdelete.c:
+	Fixed a serious bug in hfs_bdelete_brec() that would yield a corrupted
+	b-tree when the first record in a bnode was deleted.
+	Made bdelete() more aggressive when checking for missing parents.
+
+Sat Aug  3 06:11:50 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* btree.c, super.c:
+	Fixed a problem that caused a kernel oops when no HFS filesystem
+	is found.
+
+Wed Jul 24 13:06:12 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* catalog.c:
+	Remove race in hfs_cat_create() that could overflow directory valence.
+
+	* catalog.c:
+	Fix hfs_cat_create() so the parent directory doesn't get deleted
+	out from under it.  Otherwise we could have created files and
+	directories in deleted directories.
+
+	* hfs_fs.h, dir_cap.c, dir_dbl.c, dir_nat.c, catalog.c, ccache.c:
+	Redo hfs_cat_{next,nth}() in terms of which entry types to
+	allow, rather than which to skip.
+
+	* catalog.c:
+	The function hfs_cat_create() would fail to hfs_cat_put(entry) if
+	the 'record' argument was invalid or if the 'result' argument was NULL.
+
+	* dir.c:
+	The functions hfs_{create,mkdir,unlink,rmdir} all failed to
+	call iput() when their arguments conflicted with a reserved name.
+
+	* catalog.c, hfs_fs_sb.h:
+	Start over on rename().  Still unfinished.
+	Fix silly bug in hfs_cat_create() that made it always fail.
+
+	* ccache.c:
+	Fix byte-order bug in write_entry().
+
+Tue Jul 23 12:12:58 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* dir_dbl.c, dir_nat.c, hfs_fs.h, dir.c, dir_cap.c:
+	Remove the macros KEY() and PARENT() since the key is now easy
+	to access through the catalog entry.
+	Replace the macros NAME{IN,OUT}() with inline functions
+	hfs_name{in,out}() to gain type checking of arguments.
+
+	* catalog.c:
+	Remove the macro TYPE().
+
+	* inode.c, file_dbl.c, file_nat.c, file.c, file_cap.c:
+	Remove the #define's of the unused macro KEY().
+
+	* hfs_fs.h, dir_cap.c, dir_dbl.c, dir_nat.c, catalog.c, dir.c:
+	Replace hfs_lookup_parent() in dir.c with hfs_cat_parent() in catalog.c.
+	This new function performs locking to protect against rename() changing
+		the parent during I/O.
+	It is also intended for use with files as well as directories.
+	Change hfs_{cap,dbl,nat}_lookup() to use the new function.
+
+	* dir.c, hfs_fs.h, catalog.c:
+	Remerge hfs_cat_{create,mkdir}() into hfs_cat_create() and resurrect
+		hfs_cat_new_{file,dir}().
+	Fix hfs_cat_{create,delete} to use the improved catalog cache for
+		locking in place of directory-level create/delete locks.
+	Fix hfs_{create,mkdir}() to use the new hfs_cat_create().
+
+	* hfs_fs.h, ccache.c:
+	Rewrite parts to remove need for specialized create/delete locking.
+	Use new case-independent hash function.
+	Fix bug in hfs_cat_get() that would read an entry w/o locking it.
+	Call hfs_relinquish() before retrying a deleted entry in hfs_cat_get.
+	If there is a read error, then don't retry in hfs_cat_get().
+	Remove unused 'version' field from (struct hfs_cat_entry).
+
+	* sysdep.h:
+	Add hfs_relinquish(), a system-independent alias for schedule().
+
+	* hfs_fs.h, string.c:
+	Add hfs_strhash(), a simplistic case-independent hash function.
+
+	* hfs_fs.h, inode.c:
+	Make hfs_iget() an inline function.
+
+	* TODO:
+	Add a few goals and removed those that have been achieved.
+
+	* Makefile:
+	Add ccache.c to list of source files.
+	Add rule for *.s files and include them in the 'clean' rule.
+
+Wed Jul 17 17:22:45 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* sysdep.h, trans.c, string.c, super.c, hfs_fs_i.h, hfs_fs_sb.h,
+	  inode.c, hfs_btree.h, hfs_fs.h, file_dbl.c, file_nat.c, extent.c,
+	  file.c, file_cap.c, dir_dbl.c, dir_nat.c, ccache.c, dir.c,
+	  dir_cap.c, btree.c, catalog.c, bnode.c, brec.c, balloc.c:
+	Total rewrite of the inode-handling stuff to be centered around
+	a catalog entry cache (ccache.c).  This results not only in a far
+	more sensible way of doing things, but also removed many race
+	conditions. (The source and object code both got smaller too!)
+	Many small "undocumented features" were also fixed.
+	Replace HFS_CNAME with (struct hfs_cname).
+	rename() has been temporarily abandoned.
+
+Thu Jul 11 01:14:38 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* dir.c:
+	As written hfs_lookup_parent() had two overlapping read requests
+	in the catalog tree.  This could have led to deadlock.
+
+Wed Jul 10 09:27:00 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* catalog.c, hfs_fs.h, bdelete.c:
+	More work on getting rename() fleshed out.  Still not done.
+	Before I can finish it looks like I'll need to build a
+	mechanism for exclusive access to the catalog tree.  There
+	just doesn't seem to be any other way to get proper POSIX
+	semantics without a bunch of race conditions elsewhere.
+
+	* hfs_fs.h, inode.c, dir_cap.c, dir_dbl.c, dir_nat.c, catalog.c:
+	More work on the still incomplete rename() code.
+	Merge hfs_cat_add_{dir,file}() into hfs_cat_create().
+	Add file-thread support to hfs_cat_{create,delete,rename}.
+
+Tue Jul  9 09:43:15 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* inode.c, dir_dbl.c, dir_nat.c, extent.c, dir_cap.c:
+	The indirect (struct hfs_file) was causing blocks not to be freed
+	when files where deleted, and an omission in hfs_put_inode() was
+	preventing the inode from getting freed.  Both are now fixed.
+
+	* hfs_fs.h, dir_dbl.c, dir_nat.c, hfs_btree.h, catalog.c, dir_cap.c,
+	  bdelete.c:
+	Made unlink() and rmdir() more race resistant and did some more
+	work on the still incomplete code for rename().
+
+	* btree.c, bnode.c:
+	There was a serious race condition in the bnode cache, so
+	hfs_bnode_find() is now modeled after Linus's inode cache.
+
+Mon Jul  8 10:33:38 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* hfs_fs_i.h, inode.c, file_cap.c, file_dbl.c, file_nat.c, dir_dbl.c,
+	  dir_nat.c, file.c, dir.c, dir_cap.c:
+	More changes to layout of (struct hfs_inode_info).
+
+	* super.c, inode_cap.c, inode_dbl.c, inode_nat.c, inode.c, hfs_fs_i.h,
+	  hfs_fs_sb.h, file_nat.c, hfs_fs.h, file.c, file_cap.c, file_dbl.c,
+	  Makefile, catalog.c:
+	Implemented new layout for (struct hfs_inode_info) resulting in the
+	elimination of lots of duplicated code for hfs_*_write_inode(),
+	hfs_*_put_inode() and *_open() functions.
+	Merged inode_*.c files back into inode.c.
+	Not fully tested.
+
+	* TODO:
+	Add a few more of my goals to the list.
+
+	* README:
+	Documentation updates.
+
+	* inode_nat.c, inode_cap.c, inode_dbl.c, inode.c, hfs_fs.h, hfs_fs_i.h,
+	  file.c, file_cap.c, file_dbl.c, file_nat.c, catalog.c:
+	(struct hfs_file) and metadata are read when file is opened or
+	truncated and are released by iput().
+
+Sun Jul  7 23:55:43 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* inode_nat.c, inode_cap.c, inode_dbl.c, inode.c, dir_nat.c, hfs_fs.h,
+	  hfs_fs_i.h, dir_cap.c, dir_dbl.c, catalog.c, dir.c:
+	(struct hfs_dir) is now inside (struct hfs_inode_info) once again.
+
+	* inode_nat.c, super.c, inode_cap.c, inode_dbl.c, inode.c, file_nat.c,
+	  hfs_btree.h, hfs_fs.h, extent.c, file_cap.c, file_dbl.c, dir_nat.c,
+	  dir_cap.c, dir_dbl.c, btree.c, catalog.c, dir.c, bpath.c, brec.c,
+	  bins_del.c, binsert.c, bnode.c, bfind.c, balloc.c, bdelete.c,
+	  Makefile:
+	Remerged (struct hfs_bpath) and (struct hfs_brec), merging the
+	files bfind.c and bpath.c as a resurrected brec.c.
+
+Sat Jul  6 21:47:05 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* inode_cap.c, inode_dbl.c, inode_nat.c, inode.c, hfs_fs.h, hfs_fs_i.h,
+	  file_cap.c, file_dbl.c, file_nat.c, hfs_btree.h, dir_nat.c, extent.c,
+	  dir.c, dir_cap.c, dir_dbl.c, btree.c, catalog.c, bfind.c, bpath.c,
+	  binsert.c, bdelete.c:
+	Renamed (struct hfs_brec_key) to (struct hfs_bkey).
+
+Tue May 28 07:53:24 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* inode_cap.c, catalog.c:
+	Spelling fixes.
+
+	* inode_nat.c, super.c, inode_cap.c, inode_dbl.c, inode.c, hfs_fs.h,
+	  hfs_fs_i.h, hfs_fs_sb.h, file.c, file_dbl.c, file_nat.c, dir_dbl.c,
+	  dir_nat.c, extent.c, dir.c, dir_cap.c, catalog.c:
+	Structures got too big, so I had to add a layer of indirection
+	to (struct hfs_inode_info).
+	This means we must clear_inode() in inode_put().
+
+Mon May 27 01:32:42 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* catalog.c, file_cap.c:
+	Some sizeof() stuff now uses variable not type.
+
+	* hfs_fs.h:
+	Make HFS_I() and HFS_SB() inline to gain type checking.
+
+Sun May 26 13:34:17 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* dir_nat.c:
+	Oops.  Had left some debugging printk()s in place.
+
+	* file_dbl.c, file_nat.c, file_cap.c:
+	Cleaned up variable names for consistency.
+
+	* hfs_fs_sb.h:
+	Add a couple 'const's to function typedefs.
+
+	* hfs_fs.h:
+	Add and update function prototypes.
+	Cleaned up type names.
+	Fix debugging malloc code.
+	Add hfs_iget_by_name() as an inline function.
+
+	* sysdep.h:
+	Remove extra semicolon from macro definitions.
+
+	* super.c:
+	Use new hfs_iget_by_name() to get root inode.
+
+	* extent.c:
+	Cleaned up some variable naming for consistency.
+
+	* catalog.c:
+	Added (untested) code for hfs_cat_move_file().
+
+	* catalog.c:
+	Fix one missed call to hfs_cat_build_key().
+	Make hfs_cat_add_{file,dir}() take a cat_entry as an argument.
+	Add hfs_cat_new_{file,dir}() to generate new cat_entry's.
+
+	* dir_dbl.c, dir_nat.c, dir.c, dir_cap.c:
+	Cleaned up type and variable names.
+	Updated calls to hfs_cat_build_key() and NAMEOUT()
+	Use new hfs_iget_by_*() calls.
+
+	* inode_cap.c, inode_dbl.c, inode_nat.c:
+	Cleaned up type and variable names.
+
+	* inode.c:
+	Update calls to hfs_cat_build_key().
+	Cleaned up type and variable names.
+	Implemented a hierarchy of hfs_iget_by*() calls.
+
+	* catalog.c:
+	Change hfs_cat_build_key() to take a HFS_CNAME as input.
+
+	* btree.c:
+	Initialize lsize and psize fields of file.
+
+	* trans.c:
+	Now passes type HFS_CNAME and has name/len in "normal" order.
+
+Tue May 21 07:02:34 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* bnode.c:
+	Attempt to read invalid bnode would have led to an infinite loop under
+	certain circumstances.  One way to cause this was with an invalid
+	partition table which points beyond the end of the device.
+
+Sat May 11 12:38:42 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* sysdep.h, sysdep.c, inode_dbl.c, inode_nat.c, super.c, inode_cap.c,
+	  inode.c, hfs_fs.h, hfs_fs_i.h, hfs_fs_sb.h, file_dbl.c, file_nat.c,
+	  hfs_btree.h, extent.c, file.c, file_cap.c, dir_nat.c, dir.c,
+	  dir_cap.c, dir_dbl.c, btree.c, catalog.c, bitmap.c, bitops.c,
+	  bnode.c, bfind.c, bins_del.c, binsert.c, balloc.c, bdelete.c:
+	Another big wave of portability-oriented changes.
+
+Tue May  7 11:28:35 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* super.c, sysdep.c, sysdep.h, inode_cap.c, inode_dbl.c, inode_nat.c,
+	  hfs_fs_i.h, inode.c, file_nat.c, hfs_btree.h, hfs_fs.h, file.c,
+	  file_cap.c, file_dbl.c, dir_nat.c, extent.c, dir_cap.c, dir_dbl.c,
+	  btree.c, catalog.c, dir.c, bnode.c, bpath.c, binsert.c, bitmap.c,
+	  bitops.c, bdelete.c, bfind.c, bins_del.c, Makefile, balloc.c:
+	Start a big move to abstract all the Linux-specific stuff
+	out of the lower levels.  Created sysdep.[ch] to hold it.
+
+	* FAQ, TODO:
+	Bring some documentation up-to-date.
+
+Fri May  3 20:15:29 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* super.c, inode_dbl.c, inode_nat.c, inode.c, inode_cap.c, extent.c,
+	  hfs_fs.h, hfs_fs_i.h, dir_dbl.c, dir_nat.c, catalog.c, dir.c,
+	  dir_cap.c, bpath.c, btree.c, binsert.c, bnode.c:
+	"FID reform": 'fid' became 'cnid' (Catalog Node ID), and is now
+	a field in (struct hfs_file).  The new name is more consistent
+	with Apple's documentation.  The presence of 'cnid' in (struct
+	hfs_file) help move more of the code toward OS-independence.
+
+	* inode_nat.c, super.c, trans.c, inode.c, inode_cap.c, inode_dbl.c,
+	  hfs_fs.h, file_cap.c, file_dbl.c, file_nat.c, dir_nat.c, extent.c,
+	  file.c, dir.c, dir_cap.c, dir_dbl.c, btree.c, catalog.c, bnode.c,
+	  bpath.c, bins_del.c, binsert.c, bitmap.c, bitops.c, bdelete.c,
+	  bfind.c, balloc.c:
+	A lot of changes in what headers are included and in what order.
+
+Sat Apr 27 12:28:54 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* FAQ:
+	Updated for current writability status.
+
+	* .cvsignore:
+	Added ChangeLog.
+
+	* file_dbl.c, file_nat.c, file_cap.c, file.c, dir_dbl.c, dir_nat.c,
+	  dir_cap.c:
+	Added the default fsync() to all file_operations structures.
+
+	* dir_nat.c, hfs_fs.h, dir.c, dir_cap.c, dir_dbl.c:
+	Add rmdir() for normal directories.
+
+	* binsert.c:
+	I had messed up insertion so that is would sometime fail to
+	split the root, but its OK now.
+
+	* dir.c:
+	hfs_do_unlink() decremented directory counts rather than file counts.
+
+Wed Apr 24 13:20:08 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* hfs_fs.h, bnode.c, hfs_btree.h:
+	Fixed a couple more type size assumptions.
+
+	* hfs_fs.h, balloc.c, bitmap.c, bitops.c:
+	"Portable" bitmap handling was wrong for just about everything but
+	the i386 and the "inverse big-endian" bit ordering that I thought
+	the m68k port was using.  It seems the m68k port is now using standard
+	big-endian bit-numbering conventions.
+	This code is now correct for the standard big- and little-endian bit
+	orderings. (which should cover all Linux systems?)
+	Also no longer assumes sizeof(long) == 4, though that might still be
+	a problem in other parts of the code.
+
+Tue Apr 23 19:19:27 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* FAQ:
+	Bring uptodate for this snapshot.
+
+	* Makefile:
+	Add FAQ to $(MISC)
+
+	* README, TODO:
+	Documentation updates.
+
+	* bdelete.c:
+	Spelling fixes.
+
+	* dir_cap.c:
+	In unlink() don't force metadata into memory if not present.
+
+	* bdelete.c:
+	Some function comments and some clean up.
+
+	* bins_del.c:
+	Added missing function comment for hfs_bnode_update_key().
+
+	* binsert.c, bitmap.c:
+	Spelling and grammar corrections to comments.
+
+	* hfs_btree.h, hfs_fs.h, bins_del.c, binsert.c, Makefile, bdelete.c:
+	Clean up of hfs_bdelete(), splitting bins_del.c into three files:
+		bins_del.c, binsert.c and bdelete.c
+
+	* bpath.c, bins_del.c:
+	hfs_bdelete() is now working "correctly", but needs some cleaning up.
+
+Mon Apr 22 05:35:41 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* hfs_fs.h, bpath.c, hfs_btree.h, bins_del.c, bnode.c, balloc.c,
+	  bfind.c:
+	Rewrite bnode handling, heading toward a more write-behind approach.
+	Have done away with HFS_LOCK_BLIND.
+
+	* inode_dbl.c, inode_nat.c, extent.c, hfs_fs_i.h, inode_cap.c:
+	Was trying to truncate resource fork of directories!
+
+Sun Apr 21 08:15:43 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* balloc.c:
+	Updated to use truncate() to grow full trees.
+
+	* extent.c, hfs_fs.h, file.c, inode.c:
+	Added truncate() for normal files.
+
+	* bins_del.c:
+	hfs_bdelete() fixes for handling removal of root.
+
+	* inode_cap.c, inode_dbl.c, inode_nat.c:
+	Release storage for deleted files in hfs_*_put_inode().
+
+	* bitmap.c:
+	Make len=0 valid for hfs_{set,clear}_vbm_bits().
+
+	* super.c, inode.c, hfs_fs_i.h, hfs_fs_sb.h, btree.c, balloc.c:
+	Changed from clumpsize to clumpblks.
+
+	* inode_nat.c, hfs_fs.h, inode_cap.c, inode_dbl.c, btree.c, extent.c,
+	  balloc.c:
+	Some extent-related changes in preparation for truncate() support.
+
+Sat Apr 20 10:59:13 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* inode_nat.c, hfs_fs_i.h, inode.c, inode_cap.c, inode_dbl.c,
+	  dir_nat.c, hfs_fs.h, dir.c, dir_cap.c, dir_dbl.c:
+	Removed dir.valence from hfs inode.
+	Added unlink(), but still need truncate() and some more support
+	in hfs_*_put_inode() to free the disk space used by deleted files.
+
+	* bnode.c:
+	Check for NULL bnode in hfs_bnode_relse().
+
+	* bins_del.c:
+	Fixed a byte-order problem in bdelete_nonempty().
+
+	* hfs_fs.h, bnode.c, bpath.c, hfs_btree.h, balloc.c, bins_del.c:
+	First attempt at hfs_bdelete().
+
+	* dir.c:
+	The Finder would display strange things if it couldn't set frView.
+	Therefore initialize frView field for new directories.
+
+	* file_cap.c, file_dbl.c, file_nat.c, hfs_fs.h:
+	Define User/Finder info fields of catalog entry in more detail.
+
+	* hfs_fs.h:
+	HFS_BFIND_DELETE should require exact match.
+
+	* dir.c:
+	Set "record in use" bit of filFlags for new files.
+
+	* inode.c:
+	Was doing the wrong thing with i_ctime.
+
+	* dir_nat.c, dir_cap.c, dir_dbl.c:
+	Added some missing updates to the inode in hfs_*_{create,mkdir}().
+
+Sun Apr 14 00:10:52 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* hfs_fs.h, file_dbl.c, file_nat.c, file.c:
+	Work around the ever-changing type of f_reada.
+
+Sat Apr 13 00:43:41 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* bpath.c, bfind.c:
+	Spelling corrections in comments.
+
+	* bins_del.c:
+	ifdef out shift_left() until it is actually used.
+
+	* hfs_btree.h, hfs_fs.h, bins_del.c, bpath.c, bfind.c:
+	Cleaned up code related to 'flags' argument to hfs_bpath_find().
+
+Fri Apr 12 23:30:01 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* bpath.c:
+	Updated comments.
+	Rewrote hfs_bpath_init() and hfs_bpath_next().
+
+	* hfs_btree.h:
+	Updated prototype for hfs_bpath_init().
+
+	* bins_del.c:
+	Updated call to hfs_bpath_init().
+
+	* inode.c, inode_cap.c, inode_dbl.c, inode_nat.c, extent.c, file_cap.c,
+	  file_dbl.c, file_nat.c, dir_cap.c, dir_dbl.c, dir_nat.c, catalog.c,
+	  dir.c:
+	Renamed hfs_brec_relse() to hfs_brelse().
+
+	* hfs_fs.h, hfs_btree.h:
+	Updated prototypes to reflect new names in bpath.c
+
+	* bins_del.c:
+	Updated calls to functions in bpath.c
+	Updated comments.
+
+	* Makefile:
+	Renamed brec.c to bpath.c
+
+	* bfind.c:
+	Updated calls to functions in bpath.c
+	Added hfs_brelse() which was previously hfs_brec_relse() in brec.c
+
+	* bpath.c:
+	brec.c renamed to bpath.c
+	Functions renamed to reflect their current actions.
+	Comments are still out of date.
+	hfs_brec_relse() renamed to hfs_brelse() and moved to bfind.c
+
+	* brec.c:
+	brec.c renamed to bpath.c
+
+Wed Apr 10 07:20:28 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* hfs_fs.h, extent.c, hfs_btree.h, brec.c, dir.c, bfind.c,
+	  bins_del.c:
+	Backed-out changes to hfs_binsert() that added the ability to
+	return the new record, since it will probably not ever be needed.
+
+	* extent.c:
+	Since 1.3.45 truncate() has locked the file, so there is no need
+	for all the things I've been doing to hfs_file_extend() & new_extent().
+	Those two functions have been cleaned up a bit (similar to older forms).
+
+	* extent.c:
+	hfs_file_extend() now more "robust", but new_extent() is still
+	not fully "concurrency safe."
+
+Tue Apr  9 09:01:18 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* bins_del.c:
+	Made split() inline.
+
+	* inode.c, dir_nat.c, hfs_fs.h, dir_cap.c:
+	Added hfs_itry() to get in-core inodes.
+
+	* inode_dbl.c, inode_nat.c, hfs_fs.h, inode.c, inode_cap.c, file_dbl.c,
+	  file_nat.c, hfs_btree.h, extent.c, file_cap.c, dir_cap.c, dir_dbl.c,
+	  dir_nat.c, brec.c, catalog.c, dir.c, bins_del.c, bnode.c,
+	  bfind.c:
+	Rewrite of all the (struct hfs_brec) stuff.
+
+Mon Apr  8 21:50:01 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* btree.c, extent.c, bnode.c:
+	Fixed format strings in a few debugging printk()'s.
+
+	* brec.c, hfs_fs.h:
+	Removed hfs_brec_relse_one().
+
+	* hfs_fs.h, bnode.c, brec.c, hfs_btree.h, bfind.c, bins_del.c, balloc.c:
+	(struct hfs_bnode_ref)s are now returned by value rather than reference
+	and they are in (struct hfs_brec) rather than pointed to.  Cuts down on
+	a lot of kmalloc() and kfree() traffic.
+
+	* hfs_fs.h, dir.c, extent.c, bins_del.c:
+	Modified hfs_binsert() to be able to return the new record.
+
+	* bins_del.c, hfs_btree.h:
+	Added shift_left(), still untested.
+
+	* bins_del.c:
+	new_root() was missing its comment.
+
+	* super.c, trans.c, hfs_fs_i.h, inode.c, inode_dbl.c, inode_nat.c,
+	  file_nat.c, hfs_btree.h, hfs_fs.h, file.c, file_dbl.c, dir_dbl.c,
+	  dir_nat.c, extent.c, dir.c, dir_cap.c, bitops.c, bnode.c, brec.c,
+	  bfind.c, bins_del.c, bitmap.c, balloc.c:
+	Fixed lines over 80 characters and tabified files.
+
+	* bins_del.c:
+	Fixed line(s) over 80 columns.
+
+	* trans.c, inode_nat.c, string.c, super.c, inode.c, inode_cap.c,
+	  inode_dbl.c, hfs_fs_i.h, hfs_fs_sb.h, hfs_btree.h, hfs_fs.h, file.c,
+	  file_cap.c, file_dbl.c, file_nat.c, dir_dbl.c, extent.c, btree.c,
+	  dir_cap.c, bitops.c, bnode.c, brec.c, bfind.c, bins_del.c, bitmap.c,
+	  DOC, README, TODO, balloc.c, CHANGES:
+	About 150 spelling corrections.
+
+Sun Apr  7 23:14:28 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* dir_cap.c, dir_dbl.c, dir_nat.c, dir.c:
+	Cleaned-up check for special names in mkdir().
+
+	* extent.c:
+	More verbose error message.
+
+	* inode_dbl.c, inode_nat.c, hfs_fs_i.h, inode.c, inode_cap.c, dir.c,
+	  hfs_fs.h:
+	Limit directories to 32767 entries, since Mac uses 16-bit integer.
+
+Fri Apr  5 07:27:57 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* FAQ:
+	Initial version.
+
+	* dir_dbl.c, dir_nat.c, bins_del.c, dir.c, dir_cap.c:
+	Added missing function comments.
+
+Wed Apr  3 06:38:36 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* brec.c:
+	Cleaned-up code for brec->flags.
+
+	* extent.c:
+	Added function comments.
+
+	* bins_del.c:
+	Added function comments.
+	hfs_binsert() was incrementing record count even on failure.
+
+Mon Apr  1 08:35:51 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* extent.c:
+	Rewrote find_ext() and new_extent() for new hfs_btree_extend().
+	Moved hfs_btree_extend() to balloc.c
+	Fixed potential kernel OOPS in new_extent().
+
+	* brec.c:
+	Fixed potential kernel OOPS in hfs_brec_get_root().
+	Removed hfs_brec_find_first().
+	Fixed return value of hfs_brec_find().
+
+	* bins_del.c:
+	Updated call to hfs_btree_extend().
+
+	* balloc.c:
+	Merged hfs_bnode_add() and hfs_btree_extend() into the later.
+	Commented init_mapnode().
+
+	* bfind.c:
+	Removed hfs_bfind_first().
+
+	* hfs_fs.h, hfs_btree.h:
+	Updated prototypes.
+
+Sat Mar 30 22:56:47 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* CHANGES, README, TODO:
+	Updated documentation in preparation for 0.6 release.
+
+	* inode.c, hfs_fs.h:
+	Got rid of HFS_FAKE_EXEC in favor of noexec mount option.
+
+	* inode.c, super.c, DOC, hfs_fs_sb.h:
+	Added "quiet" mount option, like the fat filesystem.
+
+	* inode.c, dir_cap.c, dir_nat.c:
+	Pseudo-directories are read-only (at least for now).
+
+	* hfs_fs.h, dir_dbl.c, dir_nat.c, dir.c, dir_cap.c:
+	mkdir() updated to check against reserved names, but the
+	AppleDouble scheme still has problems with names starting with '%'.
+
+	* dir_dbl.c, dir_nat.c, hfs_fs.h, dir.c, dir_cap.c:
+	Added mkdir(). (It only took 2 tries to get it right!!)
+	Only works in "normal" directories and doesn't yet stop
+	one from creating dirs with the reserved names.
+
+	* brec.c, extent.c, bins_del.c:
+	Now have a way to get an EEXIST back from hfs_binsert().
+
+	* btree.c, inode.c, hfs_fs_i.h, file.c, bfind.c, bnode.c, balloc.c:
+	Added 'dev' field to struct hfs_file.
+
+	* hfs_fs_i.h, inode.c, btree.c, extent.c, file.c, bnode.c, brec.c,
+	  balloc.c:
+	Removed duplicated fields from struct hfs_file since
+	even B*-trees now have that information in the inode.
+
+	* extent.c:
+	zero_blocks() neglected allocation block size in computing start.
+
+Fri Mar 29 16:04:37 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* super.c:
+	hfs_statfs(): f_files and f_ffree fields are now -1, which is
+	documented as the value for "undefined" fields in struct statfs.
+
+	* trans.c, inode_nat.c, string.c, super.c, inode_dbl.c, inode_cap.c,
+	  inode.c, file_nat.c, file_dbl.c, file_cap.c, file.c, dir_dbl.c,
+	  extent.c, dir_cap.c, catalog.c, btree.c, brec.c, bnode.c, bitops.c,
+	  bitmap.c, bins_del.c, balloc.c:
+	Stylistic editing: {} for all 'for', 'while' and 'if' blocks.
+	I hope I didn't screw-up anything.
+
+	* hfs_fs.h, dir.c, dir_cap.c, dir_dbl.c, dir_nat.c:
+	Added creation of normal files to all three fork schemes!
+	Strange things may happen when trying to create "non-normal" files.
+
+	* brec.c:
+	Cleaned up some debugging code.
+
+	* hfs_fs_i.h:
+	File and directory counts could have overflown 16-bit integer.
+
+	* hfs_btree.h:
+	Added HFS_BREC_RIGHT to help fix insertion problem.
+
+	* extent.c:
+	Various fixes to hfs_{file,btree}_extend().
+
+	* catalog.c:
+	Made hfs_build_cat_key() more "correct".
+
+	* btree.c:
+	Added and fixed debugging code.
+
+	* brec.c:
+	Fixed overflow detection.
+	Added some debugging code.
+
+	* bnode.c:
+	Dirtied some buffers in places that might have been missed.
+	Fixed some debugging code that had broken.
+
+	* bitops.c:
+	hfs_count_free_bits() was running off end of bitmap.
+
+	* bins_del.c:
+	Fixed various bugs, mostly related to variable-length keys.
+
+	* balloc.c:
+	Had forgotten to set a bit in new mapnodes.
+	Node counts were overflowing 16-bit integers.
+
+	* bitmap.c:
+	Oops! clear/set did opposite operation on full words.
+
+Wed Mar 27 10:59:07 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* hfs_fs_i.h:
+	Updated struct hfs_extent for concurrent access.
+	Also caused a slight modification to struct hfs_file.
+
+	* hfs_fs.h, hfs_btree.h:
+	Added/updated prototypes.
+
+	* balloc.c:
+	hfs_bnode_alloc() finished but still untested.
+
+	* bins_del.c:
+	Fixed up deadlock avoidance in hfs_binsert() again.
+	Perhaps I even got it right this time.
+
+	* extent.c:
+	hfs_file_extend() now safe under concurrent operations?
+
+	* file.c:
+	hfs_getblk() now safe under concurrent operations?
+
+Tue Mar 26 23:26:35 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* btree.c:
+	Added call to hfs_extent_trim() to fix memory leak.
+
+	* extent.c:
+	Oops, had left a "#define static" in from debugging.
+
+	* bins_del.c:
+	hfs_binsert() rewritten to avoid deadlock when extending
+	the extents B*-tree.
+
+	* btree.c:
+	Moved hfs_btree_extend() to extent.c
+
+	* inode_nat.c, inode_cap.c, inode_dbl.c:
+	hfs_*_put_inode() rewritten to call hfs_extent_trim().
+
+	* extent.c:
+	Big rewrite for new struct hfs_extent:
+		Now keep linked list of extents.
+		Cache is now a pointer to a list element.
+		Now have 'end' field to aid decode_extent().
+	New functions:
+		hfs_extent_trim(): frees linked list.
+		hfs_btree_extend(): for extending B*-trees.
+	Improved debugging output.
+
+	* balloc.c:
+	Added hfs_bnode_add() (incomplete and uncommented).
+
+	* btree.c:
+	Moved some work from hfs_btree_extend() to hfs_bnode_add().
+
+	* bfind.c:
+	Added hfs_bfind_first() as wrapper for hfs_brec_find_first().
+
+	* brec.c:
+	Added hfs_brec_find_first() to search first leaf node.
+
+	* bins_del.c:
+	Added error returns to hfs_binsert() and binsert().
+
+	* bins_del.c:
+	Check to see that we really need ancestors before starting.
+	Check that hfs_btree_alloc() gave us enough nodes.
+	binsert() uses info precomputed by hfs_binsert().
+
+Mon Mar 25 11:33:53 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* bnode.c:
+	Collected together the error returns in hfs_bnode_lock().
+
+	* Makefile:
+	Added ChangeLog to $(MISC).
+
+Wed Mar 20 19:41:45 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* super.c, hfs_fs.h, file.c, dir_dbl.c, dir_nat.c, dir.c, dir_cap.c:
+	Removed support for kernels older than about 1.3.70
+	Most of that support had been broken recently anyway.
+
+	* super.c:
+	Fixed so DEBUG_MEM works w/o DEBUG_ALL.
+	Updated call to hfs_btree_init().
+
+	* hfs_fs.h:
+	Updated/added prototypes.
+
+	* hfs_btree.h:
+	HFS_BFIND_CHAIN removed.
+	struct hfs_brec gets new 'flags' field with bits:
+		HFS_BREC_{FIRST,OVERFLOW,UNDERFLOW,UNINITIALIZED}
+	Removed bitmap size constants.
+	Changes to struct hfs_btree:
+	        'file' and 'cache' now structs rather than pointers.
+		Added 'reserved' field (used during insertion).
+		Added pointers to size and extent in MDB.
+
+	* file.c:
+	Made hfs_getblk() public.
+	Removed (fil->inode == NULL) special cases.
+
+	* extent.c:
+	{find,update}_ext() are no longer inline.
+	new_extent() fails when called for the extents tree;
+		previously it would hanging calling hfs_binsert().
+	extend_file():
+		renamed to hfs_file_extend() and made public.
+		fixed to work for B*-trees.
+		zeros-out blocks as they are allocated.
+		fixed bugs for (allocation block) != (physical block).
+
+	* btree.c:
+	hfs_btree_{init,free}() modified for changes to struct:
+		'file' and 'cache' moved back into structure
+		file.inode initialized to reduce special cases
+	hfs_btree_init() gets pointer to size in MDB instead of size.
+	Added hfs_btree_extend() (incomplete and uncommented).
+
+	* bnode.c:
+	hfs_bnode_{alloc,free}() moved to separate file.
+	Removed 'const' from some function arguments
+		due to change in struct hfs_btree.
+	hfs_bnode_lock(): added WRITE/RESRV->READ transition.
+
+	* brec.c:
+	hfs_brec_get_{root,child}() now take a 'keep_mask' argument
+		indicating when to keep ancestor nodes, and store
+		information about why ancestors were kept.
+	HFS_BFIND_CHAIN eliminated in favor of HFS_BFIND_{INSERT,DELETE}
+		which are now implemented using 'keep_mask'.
+	Added hfs_brec_relse_one() that doesn't release ancestors.
+
+	* bins_del.c:
+	Lots of rewrites to cleanup insertion.
+	Now tries to extend tree before insertion starts.
+	binsert() iterative rather than recursive.
+	No point in keeping track as it is still not "stable".
+
+	* balloc.c:
+	New file: started with hfs_bnode_{free,alloc}()
+	Added hfs_bnode_init() to initialize a newly allocated bnode.
+	hfs_bnode_free():
+		Renamed hfs_bnode_bitop().
+		Can set or clear a specified bit.
+		Gets bitmap sizes from nodes directly.
+	hfs_bnode_alloc():
+		Returns actual node, calling hfs_bnode_init().
+		Gets bitmap sizes from nodes directly.
+
+	* bfind.c:
+	Removed obsolete comment from hfs_bsucc()
+	Removed 'const' from tree arg of hfs_bfind()
+		due to changes in struct hfs_btree.
+
+	* Makefile:
+	Added new file: balloc.c
+
+Sat Mar  9 22:03:53 1996  Paul H. Hargrove  <hargrove@sccm.stanford.edu>
+
+	* Start of detailed CVS logging.
+
+Mar 09, 1996: snapshot-09Mar96 hargrove@sccm.stanford.edu (Paul H. Hargrove)
+	NOT AN OFFICIAL RELEASE
+	Fixed up debugging code that was broken by split of btree.c
+	Added debugging kmalloc/kfree
+	Fixed memory leak in hfs_bnode_relse()
+
+Mar 08, 1996: snapshot-08Mar96 hargrove@sccm.stanford.edu (Paul H. Hargrove)
+	NOT AN OFFICIAL RELEASE
+	now reset blocksize on device when done.
+	hfs_binsert done (except for the full tree case).
+	btree.c split up into manageable pieces (need to sort out hfs_btree.h)
+
+Feb 26, 1996: snapshot-26Feb96 hargrove@sccm.stanford.edu (Paul H. Hargrove)
+	NOT AN OFFICIAL RELEASE
+	Some writability.
+	Bug with multiple opens of meta data fixed.
+	Netatalk support no longer considered experimental.
+
+Virtually everything has changed, so I've lost track here.
+
+Nov 16, 1995: snapshot-16Nov95 hargrove@sccm.stanford.edu (Paul H. Hargrove)
+	NOT AN OFFICIAL RELEASE
+	Still more comments.
+	btree.c back to 80 columns.  will do same to other files soon.
+	Starting with btree.c have begun to put file contents into some
+		sort of standard order.
+	Moved metadata reading to VFS open() routine and now free it in
+		the VFS release() routine.  Much cleaner than the old way.
+	Unified hfs_iget by shifting scheme-dependent code into a function
+		pointer in the superblock.  This could/should be shifted to
+		a VFS read_inode() routine if that can be done cleanly.
+	Probably lots of other changes; I've lost track.
+
+Nov 05, 1995: version 0.5.3 hargrove@sccm.stanford.edu (Paul H. Hargrove)
+	NOT AN OFFICIAL RELEASE
+	1.2.x compatibility removed
+	Added lots of comments to btree.c and cleanup some code.  The result
+		is that the source file doubled in size while the object
+		file dropped in size by 20%.
+	Added some comments to super.c and dir.c as well.
+	Cleaned up some stuff in dir.c adding some additional error checking
+		and moving closer to using a unified hfs_iget by migrating
+		common code into lookup_parent().
+	Changed btree.c to use a separate bnode cache per filesystem.
+	Renamed a bunch of the bnode functions in btree.c
+
+Jun 29, 1995: version 0.5.2 hargrove@sccm.stanford.edu (Paul H. Hargrove)
+	BUG FIX and 1.3.x-compatibility release.
+	Will compile under 1.2.x or 1.3.x by changing one line in Makefile.
+	Started adding magic numbers to structures for "safety".
+	Don't strip internal symbols when linking or loading, as this made
+		good bug reports rather difficult.
+	Fixed a bug that could cause the fs to lock-up after trying to open
+		a non-existent file.
+	Fixed a bug that allowed files to appear truncated, when in fact it
+		is still not possible to truncate a file.
+	Added more/better comments to header files.
+	Deal with volume and b-tree bitmaps in preparation for writing.
+	Fixed readdir() to deal properly with the case where the directory
+		changes while writing to user-space. (which can't yet
+		actually happen, until directories are writable).
+
+Jun 23, 1995: version 0.5.1 hargrove@sccm.stanford.edu (Paul H. Hargrove)
+	BUG FIX RELEASE
+	Removed two debugging messages that didn't belong.
+	Fixed a typo that prevented modified inodes from being written to disk.
+	Added a missing line which prevented rmmod'ing sometimes.
+	Added a missing line which caused errors when modifying .finderinfo or
+		.resource under the CAP system.
+	Added a notify_change() to keep mode bits sensible, and to cause
+		changes to an inode to affect the data fork and resource fork
+		of a file together.
+
+Jun 22, 1995: version 0.5 hargrove@sccm.stanford.edu (Paul H. Hargrove)
+	Fixed a bug that was giving wrong values for i_blocks
+	Partly writable (can only 'touch' existing files, so far)
+	Removed case= mount option.  It will be back eventually.
+	Can now deal with CDROMs (and hard disks?), many thanks to
+		Holger Schemel for this work.
+	Latin-1 filename conversion also due to Holger Schemel.
+	Rewritten btree operations.
+
+Feb 28, 1995: version 0.4 hargrove@sccm.stanford.edu (Paul H. Hargrove)
+	Requires Linux >= 1.1.94: depends on changes made to asm/byteorder.h
+	Now using string comparison code donated by ARDI (see string.c)
+	Code reorganized to use data structures more like ARDI's.
+	More code reorganization to abstract the btree operations.
+	Added the fork= mount option.
+	Added AppleDouble support.  Executor, from ARDI, can now run programs
+		from HFS filesystems mounted with the HFS module.
+
+Jan 28, 1995: version 0.3 hargrove@sccm.stanford.edu (Paul H. Hargrove)
+	Major code reorganization.
+	Known for certain to work ONLY on floppies.
+	Started caching extents, so got faster on long file reads.
+	Now compiles separate from kernel tree.
+	Supports 5 filename conversion methods.
+	Supports forks, using the method from CAP.
+	All external symbols now start with HFS_ or hfs_
+
+Jan 12, 1995: version 0.2 hargrove@sccm.stanford.edu (Paul H. Hargrove)
+	Should now work on all HFS volumes, but still only tested on floppies.
+	Got smaller and faster with some code reorganization.
+	Since Linus moved htons() and friends to an asm file, should now be
+	 truly endian-independent, but still only tested on Intel machines.
+	Requires Linux >= 1.1.77, since Linus moved htons().
+
+Jan 05, 1995: version 0.1 hargrove@sccm.stanford.edu (Paul H. Hargrove)
+	First release.
+	1.44Mb floppies only
+	no resource forks
+	trivial name mangling only
+	read only
+	for Linux >= 1.1.75
diff --git a/fs/hfs/FAQ.txt b/fs/hfs/FAQ.txt
new file mode 100644
index 00000000000000..de76e8d2380785
--- /dev/null
+++ b/fs/hfs/FAQ.txt
@@ -0,0 +1,342 @@
+  Frequently Asked Questions about the HFS filesystem for
+  Linux
+  Paul H. Hargrove, hargrove@sccm.Stanford.EDU
+  version 1.0.3, 27 Apr 1997
+
+  This document provides answers to some of the most frequently asked
+  questions about the HFS filesystem for Linux.  It is currently pretty
+  rough and totally unorganized.  Corrections, additions and clarifica-
+  tions are appreciated.  The most current version of this document is
+  kept on The HFS for Linux Page <http://www-sccm.Stanford.EDU/~har-
+  grove/HFS/>.
+  ______________________________________________________________________
+
+  Table of Contents:
+
+  1.      What is this FAQ about?
+
+  2.      What is HFS?
+
+  3.      How I mount AppleShare volumes?
+
+  4.      What is the current version of the HFS filesystem.
+
+  5.      How stable is the current version?
+
+  6.      Is there a mailing list for discussion of the HFS filesystem?
+
+  7.      What version of Linux do I need to be running?
+
+  8.      Will it run on my (your processor type here)?
+
+  9.      Will it run under (your non-Linux operating system here)?
+
+  10.     Why can I mount some HFS CDROMs but not others?
+
+  11.     What does ``only 1024-char blocks implemented (512)'' mean?
+
+  12.     Why do I get a message about a bad or unknown partition table?
+
+  13.     Can I mount multiple HFS partitions from the same Macintosh
+  disk?
+
+  14.     In what ways can I write to HFS filesystems?
+
+  15.     Does the HFS filesystem work with 400 kB or 800 kB Macintosh
+  diskettes?
+
+  16.     How can I format an HFS filesystem?
+
+  17.     How can I fsck an HFS filesystem?
+
+  18.     Why do I get ``error -50'' messages from my Mac when using
+  netatalk?
+
+  19.     Why does my Macintosh show generic application and document
+  icons?
+
+  20.     How owns all the copyrights and trademarks? ;-)
+
+  20.1.   This Document
+
+  20.2.   The Software
+
+  20.3.   Trademarks
+  ______________________________________________________________________
+
+  11..  WWhhaatt iiss tthhiiss FFAAQQ aabboouutt??
+
+  This FAQ is about the HFS filesystem for Linux, which is available in
+  two forms.  The stand-alone version (called hfs_fs) is a Linux kernel
+  loadable module implementing the Macintosh HFS filesystem.  The HFS
+  filesystem is also included in some distributions of the Linux kernel
+  source (in the directory linux/fs/hfs).  This version can be compiled
+  as a loadable module or compiled into the kernel.
+
+  Either version allows a machine running Linux to read and write disks
+  from a Macintosh (almost) as though they were native Linux disks.
+
+  22..  WWhhaatt iiss HHFFSS??
+
+  HFS stands for ``Hierarchical File System'' and is the filesystem used
+  by the Mac Plus and all later Macintosh models.  Earlier Macintosh
+  models used MFS (``Macintosh File System''), which is not supported.
+
+  33..  HHooww II mmoouunntt AApppplleeSShhaarree vvoolluummeess??
+
+  The HFS filesystem is for mounting local filesystems only.  There is
+  an experimental afpfs by Ben Hekster heksterb@acm.org available from
+  http://www.odyssey.co.il/~heksterb/Software/afpfs/.
+
+  44..  WWhhaatt iiss tthhee ccuurrrreenntt vveerrssiioonn ooff tthhee HHFFSS ffiilleessyysstteemm..
+
+  As of version 1.0.3 of this FAQ, version 0.95 is the most recent.  You
+  can always find the most recent version on The HFS for Linux Page
+  <http://www-sccm.Stanford.EDU/~hargrove/HFS/>.  Announcements of new
+  versions are made to the comp.os.linux.announce newsgroup.
+
+  55..  HHooww ssttaabbllee iiss tthhee ccuurrrreenntt vveerrssiioonn??
+
+  Version 0.95 is considered to be ``beta'' software, so I recommend
+  making backups of anything important before you start playing.  It is
+  relatively free of bugs due to lots of testing of the previous
+  releases.
+
+  After a suitable period without new bugs the I will consider the
+  software to be ``stable'' and the version number will jump to 1.0.
+
+  66..  IIss tthheerree aa mmaaiilliinngg lliisstt ffoorr ddiissccuussssiioonn ooff tthhee HHFFSS ffiilleessyysstteemm??
+
+  There is no mailing list devoted exclusively to the HFS filesystem.
+  However, announcements of new versions are posted to the ``linux-
+  atalk'' and ``hfs-interest'' lists.  I will see bug reports sent to
+  those lists but e-mail is more reliable (hargrove@sccm.Stanford.EDU).
+
+  To subscribe to hfs-interest send e-mail with a body of ``subscribe
+  hfs-interest (your e-mail address)'' to majordomo@ccs.neu.edu.
+
+  To subscribe to linux-atalk send e-mail with a body of ``SUBSCRIBE
+  LINUX-ATALK (Your full name)'' to listserv@netspace.org.
+
+  77..  WWhhaatt vveerrssiioonn ooff LLiinnuuxx ddoo II nneeeedd ttoo bbee rruunnnniinngg??
+
+  To compile and use the stand-alone distribution of the HFS filesystem
+  you will need Linux kernel version 2.0.1 or newer compiled with
+  modules enabled (CONFIG_MODULES).  To compile you will need the kernel
+  headers which match the kernel you are running.  This is covered in
+  more detail in the installation instructions in INSTALL.txt.
+
+  If your kernel came with HFS in the kernel source tree then HFS should
+  work with your Linux version.  There may be small problems with a few
+  of the development kernel releases.  For these releases check the HFS
+  for Linux Page <http://www-sccm.Stanford.EDU/~hargrove/HFS/> for
+  patches.
+
+  88..  WWiillll iitt rruunn oonn mmyy ((yyoouurr pprroocceessssoorr ttyyppee hheerree))??
+
+  The code is carefully written to be independent of your processor's
+  word size and byte-order, so if your machine runs Linux it can run the
+  HFS filesystem.  However some younger ports don't yet have support for
+  loadable modules.
+
+  Note that HFS is tested most extensively on Intel platforms.  So there
+  could be subtle compilation problems on other platforms.  If you
+  encounter any that are not addressed by the documentation then please
+  let me know.
+
+  99..  WWiillll iitt rruunn uunnddeerr ((yyoouurr nnoonn--LLiinnuuxx ooppeerraattiinngg ssyysstteemm hheerree))??
+
+  No.  There is a port in progress to NetBSD.  I know of no other active
+  porting attempts.  If you are interested in porting the HFS filesystem
+  to another Unix-like operating system, I am interested in providing
+  what guidance I can.
+
+  1100..  WWhhyy ccaann II mmoouunntt ssoommee HHFFSS CCDDRROOMMss bbuutt nnoott ootthheerrss??
+
+  In the past there was a known incompatibility with some ``hybrid''
+  CDROMs that appear as HFS disks on Macs and as ISO9660 disks on other
+  systems.  I think I have fixed the problem.  So, if you encounter this
+  particular problem or have problems with specific non-hybrid CDROMs
+  please e-mail me with the title and manufacturer of the CD.
+
+  1111..  WWhhaatt ddooeess ````oonnllyy 11002244--cchhaarr bblloocckkss iimmpplleemmeenntteedd ((551122))'''' mmeeaann??
+
+  This message comes from the kernel and indicates that an attempt was
+  made to read a 512-byte block from a device that doesn't support
+  512-byte blocks.  The HFS filesystem only works with 512-byte blocks,
+  and therefore doesn't function with these devices.  Eventually it may
+  be able to use 1024-byte (or even 2048-byte) blocks when necessary.
+  Ideally the device driver should be enhanced to support 512-byte
+  blocks so that the various filesystems which need 512-byte blocks
+  don't each need to work around it.
+
+  1122..  WWhhyy ddoo II ggeett aa mmeessssaaggee aabboouutt aa bbaadd oorr uunnkknnoowwnn ppaarrttiittiioonn ttaabbllee??
+
+  If your Linux kernel doesn't understand Macintosh partition tables it
+  gives this warning when it can't find a partition table it recognizes.
+  To support partitioned media with such kernels, decoding of Mac
+  partition tables is done by the HFS filesystem so you should still be
+  able to mount the disk.  However, to do so you will need to mount the
+  raw device (such as /dev/sdb instead of /dev/sdb4) and use the part
+  mount option to indicate which partition you want.
+
+  1133..  CCaann II mmoouunntt mmuullttiippllee HHFFSS ppaarrttiittiioonnss ffrroomm tthhee ssaammee MMaacciinnttoosshh ddiisskk??
+
+  Only if your kernel understands Macintosh partition tables.  It the
+  kernel doesn't understand the Macintosh partition table, the HFS
+  filesystem must access the raw device.  Therefore, the kernel thinks
+  the entire drive is in use and prevents additional mounts on it.
+
+  1144..  IInn wwhhaatt wwaayyss ccaann II wwrriittee ttoo HHFFSS ffiilleessyysstteemmss??
+
+  The HFS filesystem is as capable as the MS-DOS or VFAT filesystems,
+  except that certain things can only be done with a file's data fork.
+
+  You ccaann:
+
+  +o  Create, delete and rename directories and data forks of files with
+     the caveat that names are case insensitive (so foo and Foo are the
+     same file or directory).
+
+  +o  Run Linux executables or shared libraries on an HFS disk if they
+     are stored in the data fork of a file.
+
+  +o  Read, write and truncate both forks of files and the Finder's
+     metadata of files and directories.
+
+  +o  Mmap data forks of files (and the resource fork if the filesystem
+     is mounted with the fork=cap option).
+
+  +o  Toggle the 'w' permission bits (as a group) of data forks.
+
+  +o  Change the i_mtime of files and directories.
+
+  You ccaannnnoott:
+
+  +o  Create, delete or rename resource forks of files or the Finder's
+     metadata.  Note, however, that they are created (with defaults
+     values), deleted and renamed along with the corresponding data fork
+     or directory.
+
+  +o  Run Linux executables or shared libraries on an HFS disk if they
+     are stored in the resource fork of a file.
+
+  +o  Mmap the Finder's metadata (when fork=cap) or AppleDouble header
+     files (when fork=double or fork=netatalk).
+
+  +o  Change permissions on directories.
+
+  +o  Change the uid or gid of files or directories.
+
+  +o  Set the set-uid, set-gid or sticky permission bits.
+
+  +o  Create multiple links to files.
+
+  +o  Create symlinks, device files, sockets or FIFOs.
+
+  1155..  DDooeess tthhee HHFFSS ffiilleessyysstteemm wwoorrkk wwiitthh 440000kk oorr 880000kk MMaacciinnttoosshh
+  ddiisskkeetttteess??
+
+  Yes and no.  The software is fully capable of dealing with HFS disks
+  of any size.  However, the 400k and 800k diskettes are written in a
+  physical format that is incompatible with most non-Macintosh floppy
+  drives.  Note also that almost all 400k Macintosh diskettes are MFS,
+  not HFS.
+
+  1166..  HHooww ccaann II ffoorrmmaatt aann HHFFSS ffiilleessyysstteemm??
+
+  Robert Leslie (rob@mars.org) has written a package for working with
+  HFS filesystems (like mtools plus a graphical interface).  One program
+  in the package is hformat which can format HFS filesystems.  The
+  latest version can be found on the HFS Utilities home page
+  <http://www.mars.org/home/rob/proj/hfs/>.
+
+  1177..  HHooww ccaann II ffsscckk aann HHFFSS ffiilleessyysstteemm??
+
+  Right now you'll have to use a Macintosh to do this.  However, Rob
+  Leslie is working on an fsck for HFS filesystems.
+
+  1188..  WWhhyy ddoo II ggeett ````eerrrroorr --5500'''' mmeessssaaggeess ffrroomm mmyy MMaacc wwhheenn uussiinngg
+  nneettaattaallkk??
+
+  To be compatible with netatalk's afpd you will need to use netatalk
+  version 1.4b1 or newer and mount the HFS filesystem with the ``afpd''
+  mount option.  More information is provided in the ``afpd'' subsection
+  of the ``Mount Options'' section of the HFS documentation (HFS.txt if
+  you have the stand-alone HFS distribution or
+  linux/Documentation/filesystems/hfs.txt if HFS is in your kernel
+  source tree.)
+
+  1199..  WWhhyy ddooeess mmyy MMaacciinnttoosshh sshhooww ggeenneerriicc aapppplliiccaattiioonn aanndd ddooccuummeenntt
+  iiccoonnss??
+
+  When using the ``afpd'' mount option the Desktop database on the disk
+  is not made available to Netatalk's afpd.  Because of this mounting an
+  HFS filesystem across the network to a Macintosh may result in the
+  Finder showing generic application and document icons.  Additionally
+  double clicking on a document will fail to start the correct
+  application.
+
+  If the disk is writable you can make Netatalk build a new Desktop
+  database in its own format by holding down the Option key while
+  selecting the volume in the Chooser.  If the disk is not writable then
+  these problems can be worked around by copying the application to a
+  local disk on the Macintosh.
+
+  2200..  HHooww oowwnnss aallll tthhee ccooppyyrriigghhttss aanndd ttrraaddeemmaarrkkss?? ;;--))
+
+  2200..11..  TThhiiss DDooccuummeenntt
+
+  This document is Copyright (c) 1996, 1997 by Paul H. Hargrove.
+
+  Permission is granted to make and distribute verbatim copies of this
+  document provided the copyright notice and this permission notice are
+  preserved on all copies.
+
+  Permission is granted to copy and distribute modified versions of this
+  document under the conditions for verbatim copies above, provided a
+  notice clearly stating that the document is a modified version is also
+  included in the modified document.
+
+  Permission is granted to copy and distribute translations of this
+  document into another language, under the conditions specified above
+  for modified versions.
+
+  Permission is granted to convert this document into another media
+  under the conditions specified above for modified versions provided
+  the requirement to acknowledge the source document is fulfilled by
+  inclusion of an obvious reference to the source document in the new
+  media. Where there is any doubt as to what defines ``obvious'' the
+  copyright owner reserves the right to decide.
+
+  2200..22..  TThhee SSooffttwwaarree
+
+  The HFS filesystem software is Copyright (c) 1994-1997 by Paul H.
+  Hargrove.
+
+  The software is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2, or (at your option)
+  any later version.
+
+  The software is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with the software in the file ``COPYING''; if not, write to the
+  Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
+  USA.
+
+  2200..33..  TTrraaddeemmaarrkkss
+
+  +o  ``Finder'' is a trademark of Apple Computer, Inc.
+
+  +o  ``Apple'', ``AppleShare'', and ``Macintosh'' are registered
+     trademarks of Apple Computer, Inc.
+
+  +o  ``MS-DOS'' is a registered trademarks of Microsoft Corporation.
+
+  +o  All other trademarks are the property of their respective owners.
+
diff --git a/fs/hfs/HFS.txt b/fs/hfs/HFS.txt
new file mode 100644
index 00000000000000..5c1ae5fcce01c4
--- /dev/null
+++ b/fs/hfs/HFS.txt
@@ -0,0 +1,1042 @@
+  Macintosh HFS Filesystem for Linux
+  Paul H. Hargrove, hargrove@sccm.Stanford.EDU
+  version 0.95, 28 Apr 1997
+
+  This document describes version 0.95 of the Macintosh HFS filesystem
+  for Linux.  The most current versions of this document and the
+  software are kept at The HFS for Linux Page
+  <http://www-sccm.Stanford.EDU/~hargrove/HFS/>.
+  ______________________________________________________________________
+
+  Table of Contents:
+
+  1.      Introduction
+
+  2.      Mounting HFS Filesystems
+
+  2.1.    afpd
+
+  2.2.    case={asis, lower}
+
+  2.3.    conv={auto, binary, text}
+
+  2.4.    creator=cccc
+
+  2.5.    fork={cap, double, netatalk}
+
+  2.6.    gid=n
+
+  2.7.    names={7bit, 8bit, alpha, cap, latin, netatalk, trivial}
+
+  2.8.    part=n
+
+  2.9.    quiet
+
+  2.10.   type=cccc
+
+  2.11.   uid=n
+
+  2.12.   umask=n
+
+  3.      Writing to HFS Filesystems
+
+  3.1.    Writing with fork=cap
+
+  3.2.    Writing with fork=double
+
+  3.3.    Writing with fork=netatalk
+
+  4.      A Guide to Special File Formats
+
+  4.1.    CAP .finderinfo Files
+
+  4.2.    AppleDouble Header Files
+
+  5.      Reporting Bugs
+
+  5.1.    What Goes in a Bug Report
+
+  5.2.    How to Report a Kernel Oops or GPF
+
+  6.      Legal Notices
+
+  6.1.    This Document
+
+  6.2.    The Software
+
+  6.2.1.  The Columbia AppleTalk Package for UNIX
+
+  6.2.2.  Netatalk
+
+  6.3.    Trademarks
+  ______________________________________________________________________
+
+  11..  IInnttrroodduuccttiioonn
+
+  This software implements the Macintosh HFS filesystem under Linux.  It
+  allows you to read and write HFS filesystems on floppy disks, CDROMs,
+  hard drives, ZIP drives, etc.  It is _n_o_t an AppleShare client.
+
+  If you use this software, please send me a note telling of your
+  success or failure with it.  Your feedback lets me know that this
+  project is not a waste of my time.
+
+  This code is still experimental, so backup anything important before
+  you start playing.  I'd like you to know that I've never lost any
+  files while using this software, or I would not release it.  However,
+  a ``better safe than sorry'' attitude is probably best.
+
+  If, for instance, the buffer cache were to become corrupted you could
+  start losing things on other disks.  Because of this, if you get a
+  General Protection Fault, or a kernel Oops, I _s_t_r_o_n_g_l_y recommend that
+  you reboot before writing any files.
+
+  22..  MMoouunnttiinngg HHFFSS FFiilleessyysstteemmss
+
+  Once you have the HFS filesystem compiled into the kernel or installed
+  as a loadable module, you will be able to use hfs as a filesystem type
+  option to mount.  For instance, to mount a Macintosh floppy disk on
+  the directory /mnt using the default mount options you would execute
+  ``mount -t hfs /dev/fd0 /mnt''.
+
+  The remainder of this section describes the several mount options
+  available to control how the HFS filesystem is mapped onto a Linux
+  filesystem structure.  The values for the multiple-choice options
+  (case, conv, fork and names) can be abbreviated by their first
+  character.
+
+  22..11..  aaffppdd
+
+  If included in the options, then the behavior of the filesystem is
+  changed to make it fully read-write compatible with Netatalk's afpd.
+  In this mode you should not use normal user-level tools to modify the
+  filesystem, though reading from it is acceptable.  This is because the
+  return codes from some system calls are changed to fool afpd.  These
+  changes will confuse many user-level tools.  In particular ``rm -r''
+  will loop forever.
+
+  This option implies fork=netatalk, which in turn implies
+  names=netatalk.  If either of these options are explicitly set to
+  something else they will take precedence and will confuse afpd.  The
+  quiet option has no effect.  The case= option functions normally, but
+  afpd usually does the same thing for you.  The conv= and part= options
+  also function normally.
+
+  You will probably want to use the uid=, gid= and umask= mount options.
+  Note that because all the files on an HFS filesystem belong to a
+  single user and group and have a single umask, the full AppleShare
+  permission scheme will not work through Netatalk.
+
+  One additional limitation is that the Desktop database on the disk is
+  stored in afpd's format and is separate from any existing database
+  maintained by the Finder when the volume is used on a Macintosh.
+  Because of this mounting an HFS CDROM across the network to a
+  Macintosh may result in applications and documents showing up with
+  default application and document icons.  Additionally double clicking
+  on a document will fail to start the correct application.  Both of
+  these problems can be worked around by copying the application to a
+  local disk on the Macintosh.
+
+  This mode is known to be compatible with afpd from Netatalk versions
+  1.4b1 and 1.4b2, and known to be incompatible with the afpd from
+  version 1.3.3.  As of this writing Netatalk version 1.4 has not yet
+  been released.  However, it is expected that this mode will be
+  compatible with afpd from Netatalk version 1.4 when it is released.
+
+  22..22..  ccaassee=={{aassiiss,, lloowweerr}}
+
+  default value: asis
+
+  This option determines if Macintosh filenames are presented in their
+  original case or in all lowercase.  Filename lookup is always case
+  insensitive, so either way foo and Foo refer to the same file but ls
+  will list Foo with case=asis, and foo with case=lower.  (Same as for
+  the HPFS filesystem.)
+
+     aassiiss
+        Filenames are reported in the case they were created with.
+
+     lloowweerr
+        Filenames are reported in lowercase.
+
+  22..33..  ccoonnvv=={{aauuttoo,, bbiinnaarryy,, tteexxtt}}
+
+  default value: binary
+
+  This option controls CR<->NL conversion of Macintosh _d_a_t_a _f_o_r_k_s.  Any
+  translation takes place only for files accessed with the read() and
+  write() system calls (either directly or through the stdio functions).
+  Access through mmap() is unaffected.  (Similar to the conv= option for
+  the MS-DOS filesystem.)
+
+     aauuttoo
+        If the Finder's type for a file is TEXT or ttro, then CR
+        characters are converted to NL characters when read, and NL
+        characters are converted to CR characters when written.
+
+        Be warned that some Macintosh applications create files with
+        type TEXT even though the contents is clearly binary.
+
+     bbiinnaarryy
+        No CR<->NL conversion is done.
+
+     tteexxtt
+        In all data forks, regardless of the Finder's type for the file,
+        CR characters are converted to NL characters when read, and NL
+        characters are converted to CR characters when written.
+
+  22..44..  ccrreeaattoorr==cccccccc
+
+  default value: ``????''
+
+  Specifies the 4-character string specifying the Finder's Creator for
+  new files.
+
+  22..55..  ffoorrkk=={{ccaapp,, ddoouubbllee,, nneettaattaallkk}}
+
+  default value: cap
+
+  This option determines how resource forks and the Finder's metadata
+  are represented within the structure of the Linux filesystem.
+
+     ccaapp
+        The scheme used by the Columbia AppleTalk Package's AUFS.
+
+        Associated with each directory are two special directories and a
+        metadata file.  The directory ./bar is represented by:
+
+        ..//bbaarr
+           The directory itself, containing subdirectories, the data
+           forks of files, and the following two special directories.
+
+        ..//bbaarr//..rreessoouurrccee
+           A special directory holding resource forks of the files in
+           ./bar.
+
+        ..//bbaarr//..ffiinnddeerriinnffoo
+           A special directory holding metadata files for the files and
+           subdirectories in ./bar.
+
+        ..//..ffiinnddeerriinnffoo//bbaarr
+           The metadata file for the directory ./bar.
+
+        The files in a directory are represented as three files:
+
+        ..//ffoooo
+           The data fork of the file ./foo.
+
+        ..//..rreessoouurrccee//ffoooo
+           The resource fork of the file ./foo.
+
+        ..//..ffiinnddeerriinnffoo//ffoooo
+           The metadata file for the file ./foo.
+
+        Additionally, the file .rootinfo in the root directory of the
+        HFS filesystem is a metadata file for the root directory.
+
+        Brief documentation on the format of file containing the
+        Finder's metadata is included in the section ``A Guide to
+        Special File Formats'' in this document.  More detailed
+        information is available in the Columbia AppleTalk Package.
+
+     ddoouubbllee
+        The ``AppleDouble'' format recommended by Apple.  (Apple's other
+        recommended format, ``AppleSingle'', is not yet implemented.)
+
+        Associated with each directory is an AppleDouble ``header
+        file''.  The directory ./bar is represented by:
+
+        ..//bbaarr
+           The directory itself, containing subdirectories, the data
+           forks for files, and the header files for files and
+           subdirectories.
+
+        ..//%%bbaarr
+           The header file for the directory ./bar, containing the
+           Finder's metadata for the directory.
+
+        The files in a directory are represented as two files:
+
+        ..//ffoooo
+           The data fork of the file ./foo.
+
+        ..//%%ffoooo
+           The header file for the file ./foo, containing the resource
+           fork and the Finder's metadata for the file.
+
+        Additionally, the file %RootInfo in the root directory of the
+        HFS filesystem is a header file for the root directory.  This is
+        not quite the %RootInfo file referred to in the AppleDouble
+        specification.
+
+        The header files used in this scheme are version 2 AppleDouble
+        header files.  Their format is described briefly in the section
+        ``A Guide to Special File Formats'' in this document.  They are
+        documented in detail in ``AppleSingle/AppleDouble Formats:
+        Developer's Note (9/94)'', available from Apple's Developer
+        Services Page <http://devworld.apple.com>.
+
+        Note that the naming convention for the header file can cause
+        name conflicts.  For instance, using Apple's 7-bit ASCII name
+        conversion (see the names mount option) the name %Desktop could
+        be interpreted either as the header file for the file Desktop or
+        as the file with 0xDE as the hexadecimal representation of its
+        first character, and "sktop" as the remaining 5 characters.  The
+        problem arises when both files exist, since only one will be
+        accessible.  The behavior of the HFS filesystem in the case of
+        such a conflict is undefined, and may change in future releases.
+        (If this causes problems for you, please don't report it as a
+        bug; I didn't design this ``standard'', Apple did.)
+
+     nneettaattaallkk
+        The scheme used by the Netatalk afpd.
+
+        Associated with each directory is a special directory and a
+        metadata file.  The directory ./bar is represented by:
+
+        ..//bbaarr
+           The directory itself, containing subdirectories, the data
+           forks of files, and the following special directory.
+
+        ..//bbaarr//..AApppplleeDDoouubbllee
+           A special directory holding AppleDouble header files for
+           ./bar and the files it contains, but not for the
+           subdirectories it contains.
+
+        ..//bbaarr//..AApppplleeDDoouubbllee//..PPaarreenntt
+           The header file for the directory ./bar, containing the
+           Finder's metadata for the directory.
+
+        The files in a directory are represented as two files:
+
+        ..//ffoooo
+           The data fork of the file ./foo.
+
+        ..//..AApppplleeDDoouubbllee//ffoooo
+           The header file for file ./foo, containing the resource fork
+           and the Finder's metadata.
+
+        The header files used in this scheme are version 1 AppleDouble
+        header files.  They are described briefly in the section ``A
+        Guide to Special File Formats'' in this document.  The format is
+        documented in detail in the ``Apple II File Type Notes'' under
+        the type ``$E0.0002/$E0.0003-AppleDouble'', and in Appendix B of
+        the ``A/UX Toolbox: Macintosh ROM Interface'' manual.
+
+  22..66..  ggiidd==nn
+
+  default value: gid of the mounting process
+
+  Specifies the group that owns all files and directories on the
+  filesystem.  (Same as for the MS-DOS and HPFS filesystems.)
+
+  22..77..  nnaammeess=={{77bbiitt,, 88bbiitt,, aallpphhaa,, ccaapp,, llaattiinn,, nneettaattaallkk,, ttrriivviiaall}}
+
+  default value: varies as follows
+
+  +o  If the fork option is set to double, then names defaults to alpha.
+
+  +o  If the fork option is set to netatalk, then names defaults to
+     netatalk.
+
+  +o  If the fork option is set to cap (or has taken that value by
+     default), then names defaults to cap.
+
+  This option determines how to convert between valid Macintosh
+  filenames and valid Linux filenames.  The 7bit, 8bit and alpha options
+  correspond to Apple's recommended conventions named ``7-bit ASCII'',
+  ``8-bit'' and ``7-bit alphanumeric''.
+
+     77bbiitt
+        When converting from Macintosh filenames to Linux filenames the
+        NULL (0x00), slash (/) and percent (%) characters and the
+        extended 8-bit characters (hexadecimal codes 0x80-0xff) are
+        replaced by a percent character (%) followed by the two-digit
+        hexadecimal code for the character.
+
+        When converting from Linux filenames to Macintosh filenames the
+        string "%YZ" is replaced by the character with hexadecimal code
+        0xYZ.  If 0xYZ is not a valid hexadecimal number or is the code
+        for NULL or colon (:) then the string "%YZ" is unchanged.  A
+        colon (:) is replaced by a pipe character (|).
+
+     88bbiitt
+        When converting from Macintosh filenames to Linux filenames the
+        NULL (0x00), slash (/) and percent (%) characters are replaced
+        by a percent character (%) followed by the two-digit hexadecimal
+        code for the character.
+
+        When converting from Linux filenames to Macintosh filenames the
+        string "%YZ" is replaced by the character with hexadecimal code
+        0xYZ.  If 0xYZ is not a valid hexadecimal number or is the code
+        for NULL or colon (:) then the string "%YZ" is unchanged.  A
+        colon (:) is replaced by a pipe character (|).
+
+     aallpphhaa
+        When converting from Macintosh filenames to Linux filenames only
+        the alphanumeric characters (a-z, A-Z and 0-9), the underscore
+        (_) and the last period (.) in the filename are unchanged.  The
+        remaining characters are replaced by a percent character (%)
+        followed by the two-digit hexadecimal code for the character.
+
+        When converting from Linux filenames to Macintosh filenames the
+        string "%YZ" is replaced by the character with hexadecimal code
+        0xYZ.  If 0xYZ is not a valid hexadecimal number or is the code
+        for NULL or colon (:) then the string "%YZ" is unchanged.  A
+        colon (:) is replaced by a pipe character (|).
+
+     ccaapp
+        The convention used by the Columbia AppleTalk Package's AUFS.
+
+        When converting from Macintosh filenames to Linux filenames the
+        characters from space ( ) through tilde (~) (ASCII 32-126) are
+        unchanged, with the exception of slash (/).  The slash (/) and
+        all characters outside the range 32-126 are replaced by a colon
+        (:) followed by the two-digit hexadecimal code for the
+        character.
+
+        When converting from Linux filenames to Macintosh filenames the
+        string ":YZ" is replaced by the character with hexadecimal code
+        0xYZ.  If 0xYZ is not a valid hexadecimal number or is the code
+        for NULL or colon (:) then the colon is replaced by a pipe
+        character (|).
+
+     llaattiinn
+        When converting from Macintosh filenames to Linux filenames the
+        characters from space ( ) through tilde (~) (ASCII 32-126) are
+        unchanged, with the exception of slash (/) and percent (%).  The
+        extended 8-bit Macintosh characters with equivalents in the
+        Latin-1 character set are replaced by those equivalents.  The
+        remaining characters are replaced by a percent character (%)
+        followed by the two-digit hexadecimal code for the character.
+
+        When converting from Linux filenames to Macintosh filenames the
+        string "%YZ" is replaced by the character with hexadecimal code
+        0xYZ.  If 0xYZ is not a valid hexadecimal number or is the code
+        for NULL or colon (:) then the string "%YZ" is unchanged. The
+        Latin-1 characters with equivalents in the extended 8-bit
+        Macintosh character set are replaced by those equivalents.  A
+        colon (:) is replaced by a pipe character (|).
+
+        Thanks to Holger Schemel (aeglos@valinor.owl.de) for
+        contributing this conversion mode.
+
+     nneettaattaallkk
+        The convention used by the Netatalk afpd.
+
+        When converting from Macintosh filenames to Linux filenames the
+        characters from space ( ) through tilde (~) (ASCII 32-126) are
+        unchanged, with the exception of slash (/) and any initial
+        period (.).  The slash (/) and any initial period (.)  and all
+        characters outside the range 32-126 are replaced by a colon (:)
+        followed by the two-digit hexadecimal code for the character.
+
+        When converting from Linux filenames to Macintosh filenames the
+        string ":YZ" is replaced by the character with hexadecimal code
+        0xYZ.  If 0xYZ is not a valid hexadecimal number or is the code
+        for NULL or colon (:) then the colon is replaced by a pipe
+        character (|).
+
+     ttrriivviiaall
+        When converting from Macintosh filenames to Linux filenames a
+        slash character (/) is replaced by a colon (:).
+
+        When converting from Linux filenames to Macintosh filenames a
+        colon (:) is replaced by a slash character (/).
+
+  22..88..  ppaarrtt==nn
+
+  default value: 0
+
+  Specifies which HFS partition to mount from a Macintosh CDROM or hard
+  drive.  Partitions are numbered from 0 and count only those identified
+  in the partition table as containing HFS filesystems.  This option is
+  only useful when the Linux platform doesn't fully support Macintosh
+  partition tables.  In particular on MkLinux and Linux-Pmac this option
+  is useless.
+
+  Note that in versions before 0.8.3 partitions were numbered from 1.
+
+  22..99..  qquuiieett
+
+  If included in the options, then chown and chmod operations will not
+  return errors, but will instead fail silently.  (Same as for the MS-
+  DOS and HPFS filesystems.)
+
+  22..1100..  ttyyppee==cccccccc
+
+  default value: ``????''
+
+  Specifies the 4-character string specifying the Finder's Type for new
+  files.
+
+  22..1111..  uuiidd==nn
+
+  default value: uid of the mounting process
+
+  Specifies the user that owns all files and directories on the
+  filesystem.  (Same as for the MS-DOS and HPFS filesystems.)
+
+  22..1122..  uummaasskk==nn
+
+  default value: umask of the mounting process
+
+  Specifies (in octal) the umask used for all files and directories.
+  (Same as for the MS-DOS and HPFS filesystems.)
+
+  33..  WWrriittiinngg ttoo HHFFSS FFiilleessyysstteemmss
+
+  Each of the values of the fork mount option yields a different
+  representation of the Macintosh-specific parts of a file within the
+  structure of the Linux filesystem.  There are, therefore, slightly
+  different steps involved in copying files if you want to preserve the
+  resource forks and the Finder's metadata.
+
+  It is important to remember not to use normal user-level tools to
+  modify a filesystem mounted with the afpd mount option.
+
+  Regardless of the value of the fork mount option you can do virtually
+  everything to the data fork of a file that you can to a file on any
+  other filesystem.  The limitations are essentially the same as those
+  imposed by the MS-DOS filesystem:
+
+  +o  You can't change the uid or gid of files.
+
+  +o  You can't set the set-uid, set-gid or sticky permission bits.
+
+  +o  You can't clear the execute permission bits.
+
+  Likewise you can do virtually everything to a directory that you can
+  to a directory on another file system with the following exceptions:
+
+  +o  You can't create, delete or rename resource forks of files or the
+     Finder's metadata.  Note, however, that they are created (with
+     defaults values), deleted and renamed along with the corresponding
+     data fork or directory.
+
+  +o  You can't change permissions on directories.
+
+  +o  You can't change the uid or gid of directories.
+
+  +o  You can't create multiple links to files.
+
+  +o  You can't create symlinks, device files, sockets or FIFOs.
+
+  33..11..  WWrriittiinngg wwiitthh ffoorrkk==ccaapp
+
+  Unlike the other schemes for representing forked files, the CAP scheme
+  presents the resource fork as an independent file; the resource fork
+  of ./foo is ./.resource/foo.  Therefore, you can treat it as a normal
+  file.  You can do anything to a resource fork that you can do to a
+  data fork, except that you cannot enable execute permissions on a
+  resource fork.  Therefore, resource forks are not suitable for holding
+  Linux executables or shared libraries.
+
+  If you plan to use the resource fork on a Macintosh then you must obey
+  the format of a valid resource fork.  This format is documented in
+  Chapter 1 of Apple's _I_n_s_i_d_e _M_a_c_i_n_t_o_s_h_: _M_o_r_e _M_a_c_i_n_t_o_s_h _T_o_o_l_b_o_x.  The
+  filesystem knows nothing about this format and so does nothing to
+  enforce it.
+
+  The current support for reading and writing is sufficient to allow
+  copying of entire directories with tar, as long as both the source and
+  destination are mounted with fork=cap.  tar may complain about being
+  unable to change the uid, gid or mode of files.  This is normal and is
+  an unavoidable side effect of the having a single uid, gid and umask
+  for the entire filesystem.
+
+  It is impossible to create a resource fork or a Finder metadata file.
+  However, they are created automatically when the data fork is created.
+  Therefore, if you wish to copy a single file including both forks and
+  the Finder's metadata then you must create the data fork first.  Then
+  you can copy the resource fork and the Finder's metadata.  For
+  instance to copy the file foo to dir/bar you should do the following:
+
+  1. cp foo dir/bar
+
+  2. cp .resource/foo dir/.resource/bar
+
+  3. cp .finderinfo/foo dir/.finderinfo/bar
+
+  You may get ``Operation not permitted'' errors from cp when it tries
+  to change the permissions on files.  These errors can safely be
+  ignored.  This method will work even if the file dir/bar exists.
+
+  If you wish to move foo to dir/bar and foo and dir are on the same
+  filesystem then you only need to execute ``mv foo dir/bar'' and the
+  resource fork and the Finder's metadata will move too.  However, if
+  foo and dir are on different filesystem then this will lose the
+  resource fork and metadata.  Therefore, it is safest to always move
+  files as follows:
+
+  1. cp foo dir/bar
+
+  2. cp .resource/foo dir/.resource/bar
+
+  3. cp .finderinfo/foo dir/.finderinfo/bar
+
+  4. rm foo
+
+  You may get ``Operation not permitted'' errors from cp when it tries
+  to change the permissions on files.  These errors can safely be
+  ignored.  This method will work even if the file dir/bar exists.
+
+  Directories have no resource fork but you may wish to create a
+  directory which has the same location and view on the Finder's screen
+  as an existing one.  This can be done by copying the Finder metadata
+  file.  To give the directory bar the same location, layout, creation
+  date and modify date as foo you simply execute ``cp .finderinfo/foo
+  .finderinfo/bar''.
+
+  When copying an entire directory with ``cp -R'' you may also wish to
+  copy the metadata for the directory:
+
+  1. cp -R foo bar
+
+  2. cp .finderinfo/foo .finderinfo/bar
+
+  You may get ``Operation not permitted'' errors from cp when it tries
+  to change the permissions on files.  These errors can safely be
+  ignored.
+
+  33..22..  WWrriittiinngg wwiitthh ffoorrkk==ddoouubbllee
+
+  The current support for reading and writing header files is sufficient
+  to allow copying of entire directories with tar, as long as both the
+  source and destination are mounted with fork=double.  tar may complain
+  about being unable to change the uid, gid or mode of files.  This is
+  normal and is an unavoidable side effect of the having a single uid,
+  gid and umask for the entire filesystem.
+
+  It is impossible to create a header file.  However, they are created
+  automatically when the data fork is created.  Therefore, if you wish
+  to copy a single file including both forks and the Finder's metadata
+  then you must create the data fork first.  Then you can copy the
+  header file.  instance to copy the file foo to dir/bar you should do
+  the following:
+
+  1. cp foo dir/bar
+
+  2. cp %foo dir/%bar
+
+  You may get ``Operation not permitted'' errors from cp when it tries
+  to change the permissions on files.  These errors can safely be
+  ignored.  This method will work even if the file dir/bar exists.
+
+  If you wish to move foo to dir/bar and foo and dir are on the same
+  filesystem then you only need to execute ``mv foo dir/bar'' and the
+  header file will move too.  However, if foo and dir are on different
+  filesystem then this will lose the header file.  Therefore, it is
+  safest to always move files as follows:
+
+  1. cp foo dir/bar
+
+  2. cp %foo dir/%bar
+
+  3. rm foo
+
+  You may get ``Operation not permitted'' errors from cp when it tries
+  to change the permissions on files.  These errors can safely be
+  ignored.  This method will work even if the file dir/bar exists.
+
+  Directories have no resource fork but you may wish to create a
+  directory which has the same location and view on the Finder's screen
+  as an existing one.  This can be done by copying the corresponding
+  header file.  To give the directory bar the same location, layout,
+  creation date and modify date as foo simply execute ``cp %foo %bar''.
+
+  When copying an entire directory with ``cp -R'' you may also wish to
+  copy the header file for the directory as well:
+
+  1. cp -R foo bar
+
+  2. cp %foo %bar
+
+  You may get ``Operation not permitted'' errors from cp when it tries
+  to change the permissions on files.  These errors can safely be
+  ignored.
+
+  33..33..  WWrriittiinngg wwiitthh ffoorrkk==nneettaattaallkk
+
+  The current support for reading and writing header files is sufficient
+  to allow copying of entire directories with tar, as long as both the
+  source and destination are mounted fork=netatalk.  tar may complain
+  about being unable to change the uid, gid or mode of files.  This is
+  normal and is an unavoidable side effect of the having a single uid,
+  gid and umask for the entire filesystem.
+
+  It is impossible to create a header file.  However, they are created
+  automatically when the data fork is created.  Therefore, if you wish
+  to copy a single file including both forks and the Finder's metadata
+  then you must create the data fork first.  Then you can copy the
+  header file.  instance to copy the file foo to dir/bar you should do
+  the following:
+
+  1. cp foo dir/bar
+
+  2. cp .AppleDouble/foo dir/.AppleDouble/bar
+
+  You may get ``Operation not permitted'' errors from cp when it tries
+  to change the permissions on files.  These errors can safely be
+  ignored.  This method will work even if the file dir/bar exists.
+
+  If you wish to move foo to dir/bar and foo and dir are on the same
+  filesystem then you only need to execute ``mv foo dir/bar'' and the
+  header file will move too.  However, if foo and dir are on different
+  filesystem then this will lose the header file.  Therefore, it is
+  safest to always move files as follows:
+
+  1. cp foo dir/bar
+
+  2. cp .AppleDouble/foo dir/.AppleDouble/bar
+
+  3. rm foo
+
+  You may get ``Operation not permitted'' errors from cp when it tries
+  to change the permissions on files.  These errors can safely be
+  ignored.  This method will work even if the file dir/bar exists.
+
+  Directories have no resource fork but you may wish to create a
+  directory which has the same location and view on the Finder's screen
+  as an existing one.  This can be done by copying the corresponding
+  header file.  To give the directory bar the same location, layout,
+  creation date and modify date as foo you simply execute ``cp
+  foo/.AppleDouble/.Parent bar/.AppleDouble/.Parent''.
+
+  Because the fork=netatalk scheme holds the header file for a directory
+  within that directory, directories can safely be copied with ``cp -R
+  foo bar'' with no loss of information.  However, you may get
+  ``Operation not permitted'' errors from cp when it tries to change the
+  permissions on files.  These errors can safely be ignored.
+
+  44..  AA GGuuiiddee ttoo SSppeecciiaall FFiillee FFoorrmmaattss
+
+  Each of the values of the fork mount option yields different special
+  files to represent the Macintosh-specific parts of a file within the
+  structure of the Linux filesystem.  You can write to these special
+  files to change things such as the Creator and Type of a file.
+  However, to do so safely you must follow certain rules to avoid
+  corrupting the data.  Additionally, there are certain fields in the
+  special files that you can't change (writes to them will fail
+  silently).
+
+  44..11..  CCAAPP ..ffiinnddeerriinnffoo FFiilleess
+
+  The Finder's metadata for the file ./foo in held in the file
+  ./.finderinfo/foo.  The file has a fixed format defined in hfs_fs.h as
+  follows:
+
+       ______________________________________________________________________
+       struct hfs_cap_info {
+               __u8    fi_fndr[32];            /* Finder's info */
+               __u16   fi_attr;                /* AFP attributes */
+               __u8    fi_magic1;              /* Magic number: */
+       #define HFS_CAP_MAGIC1          0xFF
+               __u8    fi_version;             /* Version of this structure: */
+       #define HFS_CAP_VERSION         0x10
+               __u8    fi_magic;               /* Another magic number: */
+       #define HFS_CAP_MAGIC           0xDA
+               __u8    fi_bitmap;              /* Bitmap of which names are valid: */
+       #define HFS_CAP_SHORTNAME       0x01
+       #define HFS_CAP_LONGNAME        0x02
+               __u8    fi_shortfilename[12+1]; /* "short name" (unused) */
+               __u8    fi_macfilename[32+1];   /* Original (Macintosh) name */
+               __u8    fi_comln;               /* Length of comment (always 0) */
+               __u8    fi_comnt[200];          /* Finder comment (unused) */
+               /* optional:    used by aufs only if compiled with USE_MAC_DATES */
+               __u8    fi_datemagic;           /* Magic number for dates extension: */
+       #define HFS_CAP_DMAGIC          0xDA
+               __u8    fi_datevalid;           /* Bitmap of which dates are valid: */
+       #define HFS_CAP_MDATE           0x01
+       #define HFS_CAP_CDATE           0x02
+               __u8    fi_ctime[4];            /* Creation date (in AFP format) */
+               __u8    fi_mtime[4];            /* Modify date (in AFP format) */
+               __u8    fi_utime[4];            /* Un*x time of last mtime change */
+       };
+       ______________________________________________________________________
+
+  The type __u8 is an unsigned character, and __u16 is an unsigned
+  16-bit integer.
+
+  Currently only the fields fi_fndr, fi_attr, fi_ctime and fi_mtime can
+  be changed.  Writes to the other fields are silently ignored.
+  However, you shouldn't write random bytes to the other fields, since
+  they may be writable in the future.
+
+  The fi_fndr field is the ``Finder info'' and ``Extended Finder info''
+  for a file or directory.  These structures are described in various
+  books on Macintosh programming.  The portion of the most interest is
+  probably the first 8 bytes which, for a file, give the 4-byte Type
+  followed by the 4-byte Creator.
+
+  The fi_attr field is the AFP attributes of the file or directory.
+  While you can write any value to this field, only the ``write-
+  inhibit'' bit is significant.  Setting or clearing this bit will clear
+  or set the write bits in the file's permissions.  When you read from
+  this field anything you may have written is lost.  If the file has
+  write permissions enabled then you will read zero from this field.
+  With write permission disabled you will read back 0x01 0xA0, which
+  corresponds to setting the ``write-inhibit'', ``rename-inhibit'' and
+  ``delete-inhibit'' bits.
+
+  The fi_ctime and fi_mtime are the Macintosh created and modified time
+  for the file or directory, and are 32-bit signed integers in network
+  byteorder giving seconds from 00:00 GMT Jan. 1, 2000.
+
+  44..22..  AApppplleeDDoouubbllee HHeeaaddeerr FFiilleess
+
+  Both the fork=double and fork=netatalk schemes for representing forked
+  files use AppleDouble header files to contain the resource fork and
+  the Finder's metadata together in a single file.
+
+  The AppleDouble format specifies a fixed-format header which describes
+  which fields are contained in the remainder of the file, where they
+  are located in the file and how long they are.  A full description of
+  the version 1 format used when fork=netatalk is available from ??????.
+  The version 2 format used when fork=double is documented in ??????.
+  The discussion that follows assumes you have read and understood these
+  documents, which may be difficult until I've replaced the ``??????''s
+  above with something more informative :-).
+
+  Due to the variable structure of an AppleDouble header file you must
+  not use buffered I/O when reading or writing them; you should only use
+  the read() and write() system calls.  It is also important that you
+  make some effort to coordinate processes that are reading and writing
+  the same header file, since a reader will receive the wrong data if
+  the location of a given entry has changed since it read the descriptor
+  for the entry.  If a process tries to read the descriptor table while
+  it is changing then it is possible to read totally meaningless data.
+
+  When a header file is opened it is initially presented with a default
+  header layout.  You may write to the header to change the layout, but
+  when all file descriptors for the file or directory have been closed
+  the change in format is lost and subsequent opens will yield the
+  default layout.  Changes to supported entries are made directly to the
+  filesystem and are thus preserved when the file is closed and
+  reopened.
+
+  The HFS filesystem currently uses a fixed-size table to hold the
+  descriptors.  Therefore you are limited to HFS_HDR_MAX (currently 10)
+  descriptors.  In the unlikely event that you try to write a header
+  with more descriptors, a warning will be issued by the kernel, and
+  extra descriptors will be ignored.  This should be considered a bug
+  and will hopefully change sooner rather than later.
+
+  The results of specifying overlapping entries is undefined and should
+  not be relied upon to remain unchanged from one version of the HFS
+  filesystem to the next.  There is no valid reason to define
+  overlapping entries, so just don't do it!
+
+  Changes to the magic number and version fields are preserved until all
+  file descriptors are closed, however the only significance given to
+  them internally is that the 16 bytes following the version changes
+  meaning according to the version.  For version 1 header files these 16
+  bytes contain the string ``Macintosh'' followed by 7 spaces.  For any
+  other value of the version field these 16 bytes are all zeros.  In
+  either case writes to these 16 bytes are silently ignored.
+
+  Since the magic number and version are given no other significance
+  internally, you are free to do many things that violate the official
+  formats.  For instance you can create an entry for the data fork in a
+  header file with an AppleDouble magic number or create ``File Info''
+  (id=7) entries in version 2 header files and ``File Dates Info''
+  (id=8) entries in version 1 header files.  However, future versions of
+  the filesystem may enforce the format more strictly.
+
+  Entry id 1 (``Data Fork'') is read-only.  You should use the data file
+  to modify the data fork.  The data fork is, of course, not supported
+  for directories.
+
+  Entry ids 2, 7, 8, 9 and 10 (``Resource Fork'', ``File Info'', ``File
+  Dates Info'', ``Finder Info'' and ``Macintosh File Info'') are fully
+  supported, meaning that their contents may be read and written and
+  that data written is preserved when the file is closed and reopened.
+  The resource fork is, of course, not supported for directories.
+
+  Entry id 7 specifies some of the same data given by ids 8 and 10.  If
+  you create a header file with an entry for id 7 and for ids 8 or 10,
+  then the behavior with respect to their interaction is undefined.  A
+  header that contains an entry for id 7 and for ids 8 or 10 is not
+  valid as either a version 1 or a version 2 header file, so there is no
+  reason to do this and future versions may prevent it.
+
+  Entry id 3 (``Real Name'') is read-only, since it will change
+  automatically when a file is renamed.  Writes to the corresponding
+  entry are silently ignored.
+
+  All other entry ids are ignored.  You may create descriptors for them;
+  in fact the default header layout when fork=netatalk includes a
+  descriptor for id 4 (``Comment'').  However writes to the entries
+  corresponding to the ignored ids fail silently and reads from the
+  entries always return zeros.  However, you shouldn't write random
+  bytes to unsupported entries, since they may be supported in the
+  future.
+
+  All of the supported entry types except the data and resource forks
+  have a fixed length.  If you give them a smaller length in the
+  descriptor then you are unable to access part of the corresponding
+  entry.  If you give them a larger length in the descriptor, then the
+  corresponding entry is padded with zeros and writes to the extra space
+  are silently ignored.
+
+  Writes to the length field of descriptors for the data and resource
+  forks will cause the corresponding fork to grow (with zero padding) or
+  shrink to the indicated length.
+
+  If you have an entry for the data fork then the descriptor's length
+  field does not change automatically to reflect any modification of the
+  data fork directly (the data does change however).  If the data fork
+  is longer than the descriptor indicates, then a portion of it is
+  inaccessible.  If the data fork is shorter than the descriptor
+  indicates then reads will be padded with zeros.
+
+  Writes beyond the end of the resource fork that extend into empty
+  space between entries or beyond the end of the file will extend the
+  fork, automatically changing the length field of the corresponding
+  descriptor.  Writes to any other space between entries are silently
+  ignored and read of such spaces always return zeros.
+
+  Calling truncate() on a header file can change the length of the
+  resource fork and such a change will automatically be reflected in the
+  length field of the corresponding descriptor.  If truncate() shortens
+  the file so that the entry for the resource fork would extend beyond
+  the new end of the file then the fork is shortened to fit in the space
+  that remains, or to zero bytes if the entry is now entirely beyond the
+  end of the file.  If the last entry in a header file is the resource
+  fork then a call to truncate() that extends the header file will
+  extend the fork with zeros.  Note that this happens even if there was
+  previously space between the end of the fork and the end of the file.
+
+  55..  RReeppoorrttiinngg BBuuggss
+
+  If you'd like any problems you encounter fixed, you'll need to provide
+  a detailed bug report.  However, you should check the FAQ (available
+  from the HFS for Linux Page <http://www-sccm.Stanford.EDU/~hargrove/HFS/>)
+  first to be certain that your problem is not a known limitation of the
+  filesystem.  If your bug doesn't appear in the FAQ then you should e-mail
+  me at hargrove@sccm.Stanford.EDU.
+
+  55..11..  WWhhaatt GGooeess iinn aa BBuugg RReeppoorrtt
+
+  When writing your bug report, include any facts you think might be
+  relevant; I'd much rather have a bunch of extra facts than need to
+  e-mail you to get the information.  At a minimum the following
+  information should be included:
+
+  +o  The version of the HFS filesystem you are using (see
+     linux/fs/hfs/version.h).
+
+  +o  The kernel version you are using.
+
+  +o  Any unofficial kernel patches or loadable modules you are using.
+
+  +o  If you are loading the HFS filesystem as a module, then version of
+     the module utilities used to load hfs.o.
+
+  +o  The type of media you are working with (floppy, CDROM, ZIP Drive,
+     etc.).
+
+  +o  The steps required to reproduce the bug, including mount options
+     used.  (If you can't reproduce the bug tell me everything you did
+     the one time it did occur, but be warned that non-reproducible bugs
+     can only rarely be fixed.)
+
+  55..22..  HHooww ttoo RReeppoorrtt aa KKeerrnneell OOooppss oorr GGPPFF
+
+  If you encounter a bug that causes a kernel Oops or a General
+  Protection Fault then you'll need to collect some additional
+  information for the bug report.  If you are loading the HFS filesystem
+  as a module, then is important that you do this before rebooting,
+  since the module is unlikely to be loaded at the same address after
+  the reboot.
+
+  You should include all the information that the kernel prints to the
+  console or to the system logs.  However, the EIP and Stack Trace are
+  addresses in _y_o_u_r kernel and mean nothing to me without more
+  information.  Using your System.map file (or either ksymoops or klogd)
+  determine which functions the EIP and Stack Trace are in.  If you do
+  this by hand using your System.map file then the correct symbol is the
+  one of type t or T with the largest address less than or equal to the
+  one you are resolving.
+
+  If you are loading the HFS filesystem as a module and the Oops or GPF
+  was in the HFS code then the EIP and the top levels of the Stack Trace
+  will be in a loadable module, rather than in the kernel proper.  So,
+  their symbols will not be in the file System.map.  Therefore, you will
+  need to use /proc/ksyms, or a loadmap produced by passing the -m
+  option to insmod, to locate those symbols.
+
+  66..  LLeeggaall NNoottiicceess
+
+  66..11..  TThhiiss DDooccuummeenntt
+
+  This document is Copyright (c) 1996, 1997 by Paul H. Hargrove.
+
+  Permission is granted to make and distribute verbatim copies of this
+  document provided the copyright notice and this permission notice are
+  preserved on all copies.
+
+  Permission is granted to copy and distribute modified versions of this
+  document under the conditions for verbatim copies above, provided a
+  notice clearly stating that the document is a modified version is also
+  included in the modified document.
+
+  Permission is granted to copy and distribute translations of this
+  document into another language, under the conditions specified above
+  for modified versions.
+
+  Permission is granted to convert this document into another media
+  under the conditions specified above for modified versions provided
+  the requirement to acknowledge the source document is fulfilled by
+  inclusion of an obvious reference to the source document in the new
+  media. Where there is any doubt as to what defines ``obvious'' the
+  copyright owner reserves the right to decide.
+
+  66..22..  TThhee SSooffttwwaarree
+
+  The HFS filesystem for Linux is Copyright (c) 1994-1997 by Paul H.
+  Hargrove.
+
+  This software is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2, or (at your option)
+  any later version.
+
+  This software is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this software in the file ``COPYING''; if not, write to the
+  Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
+  USA.
+
+  66..22..11..  TThhee CCoolluummbbiiaa AApppplleeTTaallkk PPaacckkaaggee ffoorr UUNNIIXX
+
+  The source code distribution of the Columbia AppleTalk Package for
+  UNIX, version 6.0, (CAP) was used as a _s_p_e_c_i_f_i_c_a_t_i_o_n of the location
+  and format of files used by CAP's Aufs.  No code from CAP appears in
+  the HFS filesystem. The HFS filesystem is not a work ``derived'' from
+  CAP in the sense of intellectual property law.
+
+  66..22..22..  NNeettaattaallkk
+
+  The source code distributions of Netatalk, versions 1.3.3b2 and 1.4b2,
+  were used as a _s_p_e_c_i_f_i_c_a_t_i_o_n of the location and format of files used
+  by Netatalk's afpd.  No code from Netatalk appears in the HFS
+  filesystem.  The HFS filesystem is not a work ``derived'' from
+  Netatalk in the sense of intellectual property law.
+
+  66..33..  TTrraaddeemmaarrkkss
+
+  +o  ``Finder'' is a trademarks of Apple Computer, Inc.
+
+  +o  ``Apple'', ``AppleShare'', ``AppleTalk'' and ``Macintosh'' are
+     registered trademarks of Apple Computer, Inc.
+
+  +o  ``Microsoft'' and ``MS-DOS'' are registered trademarks of Microsoft
+     Corporation.
+
+  +o  All other trademarks are the property of their respective owners.
+
diff --git a/fs/hfs/INSTALL.txt b/fs/hfs/INSTALL.txt
new file mode 100644
index 00000000000000..8ea44c0ec7a9f2
--- /dev/null
+++ b/fs/hfs/INSTALL.txt
@@ -0,0 +1,126 @@
+  Installation instructions for the HFS Filesystem for Linux
+  Paul H. Hargrove, hargrove@sccm.Stanford.EDU
+  version 0.95 28 Apr 1997
+
+  This document explains how to compile and install version 0.95 of
+  hfs_fs, the HFS filesystem for Linux.
+
+  11..  SSyysstteemm RReeqquuiirreemmeennttss
+
+  You will need the following to compile and use this release of hfs_fs:
+
+  +o  Kernel version 2.0.1 or newer compiled with modules enabled
+     (CONFIG_MODULES).
+
+  +o  The kernel sources (or at least the header files) available online.
+
+  +o  The module utilities package current for your kernel version and an
+     understanding of how to use it.  (The file
+     Documentation/modules.txt in the kernel source directory provides a
+     brief introduction.)
+
+  22..  IInnssttaallllaattiioonn
+
+  This release of the HFS filesystem is not part of the official kernel
+  distribution.  Therefore, it is compiled as a module and then loaded
+  into the kernel using the module utilities.  Therefore, your kernel
+  must be compiled with CONFIG_MODULES enabled.
+
+  22..11..  CCoommppiilliinngg tthhee llooaaddaabbllee mmoodduullee
+
+  To compile hfs.o you should only need to execute ``make'' in the
+  hfs_fs source directory.
+
+  If gcc complains about not finding a large number of header files with
+  names beginning with ``linux/'' then you probably don't have the
+  kernel header files installed correctly.  Either /usr/include/linux,
+  /usr/include/asm and /usr/include/scsi should be symbolic links to
+  include/linux, include/asm and include/scsi in the kernel source tree
+  for the kernel you wish to use hfs_fs with, or else they should be
+  directories containing the header files for the kernel you wish to use
+  hfs_fs with.
+
+  If gcc complains about not finding linux/version.h, then you will need
+  to run ``make dep'' in the kernel source directory to build it.  Under
+  MkLinux, run ``make include/linux/version.h'' instead.
+
+  If gcc complains about not finding the files linux/config.h or
+  linux/autoconf.h, then you will need to run ``make config'' and ``make
+  dep'' in the kernel source directory to build these two files.
+
+  If you are compiling on a DEC Alpha and receive messages saying
+  assignment from incompatible pointer type when compiling files dir_*.c
+  and file_*.c, then you need to change a single line in the file
+  linux/hfs_fs.h.  Remove the text ``&& !defined(__alpha__)'' from the
+  end of line 217.
+
+  22..22..  IInnssttaalllliinngg tthhee mmoodduullee iinn tthhee mmoodduulleess ddiirreeccttoorryy ((ooppttiioonnaall))
+
+  If you plan to use kerneld to automatically load the module or if you
+  wish to use modprobe or insmod without supplying a complete path to
+  hfs.o, then you will need to copy hfs.o into a directory where the
+  module utilities expect to find it.
+
+  The proper directory may depend slightly on your configuration.
+  However, /lib/modules/default/fs/ is a common one for filesystem
+  modules.  Once hfs.o is in the proper directory you should run depmod
+  -a to update the dependency list used by kerneld and modprobe.
+
+  22..33..  LLooaaddiinngg tthhee mmoodduullee iinnttoo tthhee rruunnnniinngg kkeerrnneell
+
+  There are three ways to accomplish this:
+
+  1. If you are running kerneld and have installed hfs.o in the modules
+     directory then you don't need to issue any commands; the module
+     will be loaded when you attempt to mount an HFS filesystem.
+
+  2. If you are _n_o_t running kerneld then you can load hfs.o manually by
+     running modprobe hfs.o.  If you have not installed hfs.o in one of
+     the standard module directories, then you will need provide a full
+     path to the file hfs.o.
+
+  3. If you have been experiencing kernel crashes with hfs_fs, then you
+     should file a bug report including the names of the functions which
+     the EIP and Stack Trace point into.  To help with this you can ask
+     for relocation map for the module when you load it.  To do this
+     load the module with ``insmod -m hfs.o >loadmap''.  Again, you may
+     need a full path to the file hfs.o if you have not placed it in one
+     of the standard module directories.
+
+  22..44..  UUssiinngg tthhee mmoodduullee wwiitthh vveerrssiioonneedd ssyymmbboollss
+
+  All the interface between the module and the kernel take place through
+  very stable (since the mid-1.3.x kernels) parts of the kernel.  If you
+  enabled versioned symbols (CONFIG_MODVERSIONS) when you compiled your
+  kernel you should often be able to compile this module once and then
+  use it with many kernels newer than the one you compiled it for.
+
+  In any case, it is unlikely that this module will need changes with
+  each new kernel patch; simple recompilation should usually suffice.
+
+  33..  LLeeggaall NNoottiicceess
+
+  33..11..  TThhiiss DDooccuummeenntt
+
+  This document is Copyright (c) 1996, 1997 by Paul H. Hargrove.
+
+  Permission is granted to make and distribute verbatim copies of this
+  document provided the copyright notice and this permission notice are
+  preserved on all copies.
+
+  Permission is granted to copy and distribute modified versions of this
+  document under the conditions for verbatim copies above, provided a
+  notice clearly stating that the document is a modified version is also
+  included in the modified document.
+
+  Permission is granted to copy and distribute translations of this
+  document into another language, under the conditions specified above
+  for modified versions.
+
+  Permission is granted to convert this document into another media
+  under the conditions specified above for modified versions provided
+  the requirement to acknowledge the source document is fulfilled by
+  inclusion of an obvious reference to the source document in the new
+  media. Where there is any doubt as to what defines ``obvious'' the
+  copyright owner reserves the right to decide.
+
diff --git a/fs/hfs/Makefile b/fs/hfs/Makefile
new file mode 100644
index 00000000000000..fd5a7589c6aeb0
--- /dev/null
+++ b/fs/hfs/Makefile
@@ -0,0 +1,19 @@
+#
+# Makefile for the Linux hfs filesystem routines.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile.
+
+O_TARGET := hfs.o
+
+obj-y    := balloc.o bdelete.o bfind.o bins_del.o binsert.o bitmap.o bitops.o \
+	    bnode.o brec.o btree.o catalog.o dir.o dir_cap.o dir_dbl.o \
+	    dir_nat.o extent.o file.o file_cap.o file_hdr.o inode.o mdb.o \
+            part_tbl.o string.o super.o sysdep.o trans.o version.o
+
+obj-m    := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/hfs/TODO b/fs/hfs/TODO
new file mode 100644
index 00000000000000..fbbc6e16c37941
--- /dev/null
+++ b/fs/hfs/TODO
@@ -0,0 +1,52 @@
+The hfs_fs "to do" list.
+------------------------
+Items are broken down into groups and the groups are listed in order
+from most important to least important.  The items within each group
+are not placed in any particular order.  The order in which items are
+listed probably doesn't correlate well with the order they will be
+addressed.
+
+Genuine bugs:
+1.	Header files have compiled-in limit (currently 10) on descriptors.
+
+Missing features:
+1.	1k block support is needed for some devices.
+2.	An ioctl()-based interface is needed to provide a consistent way
+	to do things under all of the representations of forked files.
+
+Possible additional "fork" mount options:
+1.	AppleSingle.
+2.	The scheme MacOS uses on FAT disks (PC Exchange).
+3.	"Flat" (no resource forks or metadata).
+
+Performance issues:
+1.	Use drAllocPtr to speed block allocations.
+2.	Keep a real cache of bnodes, rather than just a hash table of
+	the ones that are currently in use.
+3.	Keep a real cache of extent records, rather than just a linked
+	list of the ones that are currently in use and the one most
+	recently used.  This is particularly needed to get acceptable
+	performance with multiple readers on a file.  Perhaps simply
+	keep them in memory once they've been read until the file is
+	closed.
+
+Implementation details:
+1.	Allocation scheme could/should be closer to that used by Apple.
+2.	B*-tree insertion could/should be closer to that used by Apple.
+3.	Magic-number checks on data structures are rarely done.
+4.	Error recovery is needed for failed binsert(), bdelete() and rename().
+5.	Deadlock detection is needed to make insert_empty_bnode() and
+	bdelete() less likely to hang on a corrupted B-tree.
+6.	Metadata for covered directories shouldn't appear in the filesystem.
+	Under CAP and AppleDouble it currently does.  However, the obvious
+	solution is a real performance killer and is not worth implementing.
+
+Fantasy features:
+1.	Access Desktop file/database for comment and icon.
+2.	Implement mmap() for AppleDouble header files and CAP info files.
+3.	Implement AppleShare client support.
+
+Suggestions/comments/questions are welcome.
+Code addressing any of the issues listed above is especially welcome.
+Paul H. Hargrove
+hargrove@sccm.Stanford.EDU
diff --git a/fs/hfs/balloc.c b/fs/hfs/balloc.c
new file mode 100644
index 00000000000000..58d28178473481
--- /dev/null
+++ b/fs/hfs/balloc.c
@@ -0,0 +1,439 @@
+/*
+ * linux/fs/hfs/balloc.c
+ *
+ * Copyright (C) 1995-1997  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * hfs_bnode_alloc() and hfs_bnode_bitop() are based on GPLed code
+ * Copyright (C) 1995  Michael Dreher
+ *
+ * This file contains the code to create and destroy nodes
+ * in the B-tree structure.
+ *
+ * "XXX" in a comment is a note to myself to consider changing something.
+ *
+ * In function preconditions the term "valid" applied to a pointer to
+ * a structure means that the pointer is non-NULL and the structure it
+ * points to has all fields initialized to consistent values.
+ *
+ * The code in this file initializes some structures which contain
+ * pointers by calling memset(&foo, 0, sizeof(foo)).
+ * This produces the desired behavior only due to the non-ANSI
+ * assumption that the machine representation of NULL is all zeros.
+ */
+
+#include "hfs_btree.h"
+
+/*================ File-local functions ================*/
+
+/*
+ * get_new_node()
+ *
+ * Get a buffer for a new node with out reading it from disk.
+ */
+static hfs_buffer get_new_node(struct hfs_btree *tree, hfs_u32 node)
+{
+	int tmp;
+	hfs_buffer retval = HFS_BAD_BUFFER;
+
+  	tmp = hfs_extent_map(&tree->entry.u.file.data_fork, node, 0);
+	if (tmp) {
+		retval = hfs_buffer_get(tree->sys_mdb, tmp, 0);
+	}
+	return retval;
+}
+
+/*
+ * hfs_bnode_init()
+ *
+ * Description:
+ *   Initialize a newly allocated bnode.
+ * Input Variable(s):
+ *   struct hfs_btree *tree: Pointer to a B-tree
+ *   hfs_u32 node: the node number to allocate
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   struct hfs_bnode_ref for the new node
+ * Preconditions:
+ *   'tree' points to a "valid" (struct hfs_btree)
+ *   'node' exists and has been allocated in the bitmap of bnodes.
+ * Postconditions:
+ *   On success:
+ *    The node is not read from disk, nor added to the bnode cache.
+ *    The 'sticky' and locking-related fields are all zero/NULL.
+ *    The bnode's nd{[FB]Link, Type, NHeight} fields are uninitialized.
+ *    The bnode's ndNRecs field and offsets table indicate an empty bnode.
+ *   On failure:
+ *    The node is deallocated.
+ */
+static struct hfs_bnode_ref hfs_bnode_init(struct hfs_btree * tree,
+					   hfs_u32 node)
+{
+#if defined(DEBUG_BNODES) || defined(DEBUG_ALL)
+	extern int bnode_count;
+#endif
+	struct hfs_bnode_ref retval;
+
+	retval.lock_type = HFS_LOCK_NONE;
+	if (!HFS_NEW(retval.bn)) {
+		hfs_warn("hfs_bnode_init: out of memory.\n");
+		goto bail2;
+	}
+
+	/* Partially initialize the in-core structure */
+	memset(retval.bn, 0, sizeof(*retval.bn));
+	retval.bn->magic = HFS_BNODE_MAGIC;
+	retval.bn->tree = tree;
+	retval.bn->node = node;
+	hfs_init_waitqueue(&retval.bn->wqueue);
+	hfs_init_waitqueue(&retval.bn->rqueue);
+	hfs_bnode_lock(&retval, HFS_LOCK_WRITE);
+
+	retval.bn->buf = get_new_node(tree, node);
+	if (!hfs_buffer_ok(retval.bn->buf)) {
+		goto bail1;
+	}
+
+#if defined(DEBUG_BNODES) || defined(DEBUG_ALL)
+	++bnode_count;
+#endif
+
+	/* Partially initialize the on-disk structure */
+	memset(hfs_buffer_data(retval.bn->buf), 0, HFS_SECTOR_SIZE);
+	hfs_put_hs(sizeof(struct NodeDescriptor), RECTBL(retval.bn, 1));
+
+	return retval;
+
+bail1:
+	HFS_DELETE(retval.bn);
+bail2:
+	/* clear the bit in the bitmap */
+	hfs_bnode_bitop(tree, node, 0);
+	return retval;
+}
+
+/*
+ * init_mapnode()
+ *
+ * Description:
+ *   Initializes a given node as a mapnode in the given tree.
+ * Input Variable(s):
+ *   struct hfs_bnode *bn: the node to add the mapnode after.
+ *   hfs_u32: the node to use as a mapnode.
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   struct hfs_bnode *: the new mapnode or NULL
+ * Preconditions:
+ *   'tree' is a valid (struct hfs_btree).
+ *   'node' is the number of the first node in 'tree' that is not
+ *    represented by a bit in the existing mapnodes.
+ * Postconditions:
+ *   On failure 'tree' is unchanged and NULL is returned.
+ *   On success the node given by 'node' has been added to the linked
+ *    list of mapnodes attached to 'tree', and has been initialized as
+ *    a valid mapnode with its first bit set to indicate itself as
+ *    allocated.
+ */
+static struct hfs_bnode *init_mapnode(struct hfs_bnode *bn, hfs_u32 node)
+{
+#if defined(DEBUG_BNODES) || defined(DEBUG_ALL)
+	extern int bnode_count;
+#endif
+	struct hfs_bnode *retval;
+
+	if (!HFS_NEW(retval)) {
+		hfs_warn("hfs_bnode_add: out of memory.\n");
+		return NULL;
+	}
+
+	memset(retval, 0, sizeof(*retval));
+	retval->magic = HFS_BNODE_MAGIC;
+	retval->tree = bn->tree;
+	retval->node = node;
+	retval->sticky = HFS_STICKY;
+	retval->buf = get_new_node(bn->tree, node);
+	if (!hfs_buffer_ok(retval->buf)) {
+		HFS_DELETE(retval);
+		return NULL;
+	}
+
+#if defined(DEBUG_BNODES) || defined(DEBUG_ALL)
+	++bnode_count;
+#endif
+
+	/* Initialize the bnode data structure */
+	memset(hfs_buffer_data(retval->buf), 0, HFS_SECTOR_SIZE);
+	retval->ndFLink = 0;
+	retval->ndBLink = bn->node;
+	retval->ndType = ndMapNode;
+	retval->ndNHeight = 0;
+	retval->ndNRecs = 1;
+	hfs_put_hs(sizeof(struct NodeDescriptor), RECTBL(retval, 1));
+	hfs_put_hs(0x1fa,                         RECTBL(retval, 2));
+	*((hfs_u8 *)bnode_key(retval, 1)) = 0x80; /* set first bit of bitmap */
+	retval->prev = bn;
+	hfs_bnode_commit(retval);
+
+	bn->ndFLink = node;
+	bn->next = retval;
+	hfs_bnode_commit(bn);
+
+	return retval;
+}
+
+/*================ Global functions ================*/
+
+/*
+ * hfs_bnode_bitop()
+ *
+ * Description:
+ *   Allocate/free the requested node of a B-tree of the hfs filesystem
+ *   by setting/clearing the corresponding bit in the B-tree bitmap.
+ *   The size of the B-tree will not be changed.
+ * Input Variable(s):
+ *   struct hfs_btree *tree: Pointer to a B-tree
+ *   hfs_u32 bitnr: The node number to free
+ *   int set: 0 to clear the bit, non-zero to set it.
+ * Output Variable(s):
+ *   None
+ * Returns:
+ *    0: no error
+ *   -1: The node was already allocated/free, nothing has been done.
+ *   -2: The node is out of range of the B-tree.
+ *   -4: not enough map nodes to hold all the bits
+ * Preconditions:
+ *   'tree' points to a "valid" (struct hfs_btree)
+ *   'bitnr' is a node number within the range of the btree, which is
+ *   currently free/allocated.
+ * Postconditions:
+ *   The bit number 'bitnr' of the node bitmap is set/cleared and the
+ *   number of free nodes in the btree is decremented/incremented by one.
+ */
+int hfs_bnode_bitop(struct hfs_btree *tree, hfs_u32 bitnr, int set)
+{
+	struct hfs_bnode *bn;   /* the current bnode */
+	hfs_u16 start;		/* the start (in bits) of the bitmap in node */
+	hfs_u16 len;		/* the len (in bits) of the bitmap in node */
+	hfs_u32 *u32;		/* address of the u32 containing the bit */
+
+	if (bitnr >= tree->bthNNodes) {
+		hfs_warn("hfs_bnode_bitop: node number out of range.\n");
+		return -2;
+	}
+
+	bn = &tree->head;
+	for (;;) {
+		start = bnode_offset(bn, bn->ndNRecs) << 3;
+		len = (bnode_offset(bn, bn->ndNRecs + 1) << 3) - start;
+
+		if (bitnr < len) {
+			break;
+		}
+
+		/* continue on to next map node if available */
+		if (!(bn = bn->next)) {
+			hfs_warn("hfs_bnode_bitop: too few map nodes.\n");
+			return -4;
+		}
+		bitnr -= len;
+	}
+
+	/* Change the correct bit */
+	bitnr += start;
+	u32 = (hfs_u32 *)hfs_buffer_data(bn->buf) + (bitnr >> 5);
+	bitnr %= 32;
+	if ((set && hfs_set_bit(bitnr, u32)) ||
+	    (!set && !hfs_clear_bit(bitnr, u32))) {
+		hfs_warn("hfs_bnode_bitop: bitmap corruption.\n");
+		return -1;
+	}
+	hfs_buffer_dirty(bn->buf);
+
+	/* adjust the free count */
+	tree->bthFree += (set ? -1 : 1);
+	tree->dirt = 1;
+
+	return 0;
+}
+
+/*
+ * hfs_bnode_alloc()
+ *
+ * Description:
+ *   Find a cleared bit in the B-tree node bitmap of the hfs filesystem,
+ *   set it and return the corresponding bnode, with its contents zeroed.
+ *   When there is no free bnode in the tree, an error is returned, no
+ *   new nodes will be added by this function!
+ * Input Variable(s):
+ *   struct hfs_btree *tree: Pointer to a B-tree
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   struct hfs_bnode_ref for the new bnode
+ * Preconditions:
+ *   'tree' points to a "valid" (struct hfs_btree)
+ *   There is at least one free bnode.
+ * Postconditions:
+ *   On success:
+ *     The corresponding bit in the btree bitmap is set.
+ *     The number of free nodes in the btree is decremented by one.
+ *   The node is not read from disk, nor added to the bnode cache.
+ *   The 'sticky' field is uninitialized.
+ */
+struct hfs_bnode_ref hfs_bnode_alloc(struct hfs_btree *tree)
+{
+	struct hfs_bnode *bn;   /* the current bnode */
+	hfs_u32 bitnr = 0;	/* which bit are we examining */
+	hfs_u16 first;		/* the first clear bit in this bnode */
+	hfs_u16 start;		/* the start (in bits) of the bitmap in node */
+	hfs_u16 end;		/* the end (in bits) of the bitmap in node */
+	hfs_u32 *data;		/* address of the data in this bnode */
+	
+	bn = &tree->head;
+	for (;;) {
+		start = bnode_offset(bn, bn->ndNRecs) << 3;
+		end = bnode_offset(bn, bn->ndNRecs + 1) << 3;
+		data =  (hfs_u32 *)hfs_buffer_data(bn->buf);
+		
+		/* search the current node */
+		first = hfs_find_zero_bit(data, end, start);
+		if (first < end) {
+			break;
+		}
+
+		/* continue search in next map node */
+		bn = bn->next;
+
+		if (!bn) {
+			hfs_warn("hfs_bnode_alloc: too few map nodes.\n");
+			goto bail;
+		}
+		bitnr += (end - start);
+	}
+
+	if ((bitnr += (first - start)) >= tree->bthNNodes) {
+		hfs_warn("hfs_bnode_alloc: no free nodes found, "
+			 "count wrong?\n");
+		goto bail;
+	}
+
+	if (hfs_set_bit(first % 32, data + (first>>5))) {
+		hfs_warn("hfs_bnode_alloc: bitmap corruption.\n");
+		goto bail;
+	}
+	hfs_buffer_dirty(bn->buf);
+
+	/* decrement the free count */
+	--tree->bthFree;
+	tree->dirt = 1;
+
+	return hfs_bnode_init(tree, bitnr);
+
+bail:
+	return (struct hfs_bnode_ref){NULL, HFS_LOCK_NONE};
+}
+
+/*
+ * hfs_btree_extend()
+ *
+ * Description:
+ *   Adds nodes to a B*-tree if possible.
+ * Input Variable(s):
+ *   struct hfs_btree *tree: the btree to add nodes to.
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   void
+ * Preconditions:
+ *   'tree' is a valid (struct hfs_btree *).
+ * Postconditions:
+ *   If possible the number of nodes indicated by the tree's clumpsize
+ *    have been added to the tree, updating all in-core and on-disk
+ *    allocation information.
+ *   If insufficient disk-space was available then fewer nodes may have
+ *    been added than would be expected based on the clumpsize.
+ *   In the case of the extents B*-tree this function will add fewer
+ *    nodes than expected if adding more would result in an extent
+ *    record for the extents tree being added to the extents tree.
+ *    The situation could be dealt with, but doing so confuses Macs.
+ */
+void hfs_btree_extend(struct hfs_btree *tree)
+{
+	struct hfs_bnode_ref head;
+	struct hfs_bnode *bn, *tmp;
+	struct hfs_cat_entry *entry = &tree->entry;
+	struct hfs_mdb *mdb = entry->mdb;
+	hfs_u32 old_nodes, new_nodes, total_nodes, new_mapnodes, seen;
+
+	old_nodes = entry->u.file.data_fork.psize;
+
+	entry->u.file.data_fork.lsize += 1; /* rounded up to clumpsize */
+	hfs_extent_adj(&entry->u.file.data_fork);
+
+	total_nodes = entry->u.file.data_fork.psize;
+	entry->u.file.data_fork.lsize = total_nodes << HFS_SECTOR_SIZE_BITS;
+	new_nodes = total_nodes - old_nodes;
+	if (!new_nodes) {
+		return;
+	}
+
+	head = hfs_bnode_find(tree, 0, HFS_LOCK_WRITE);
+	if (!(bn = head.bn)) {
+		hfs_warn("hfs_btree_extend: header node not found.\n");
+		return;
+	}
+
+	seen = 0;
+	new_mapnodes = 0;
+	for (;;) {
+		seen += bnode_rsize(bn, bn->ndNRecs) << 3;
+
+		if (seen >= total_nodes) {
+			break;
+		}
+
+		if (!bn->next) {
+			tmp = init_mapnode(bn, seen);
+			if (!tmp) {
+				hfs_warn("hfs_btree_extend: "
+					 "can't build mapnode.\n");
+				hfs_bnode_relse(&head);
+				return;
+			}
+			++new_mapnodes;
+		}
+		bn = bn->next;
+	}
+	hfs_bnode_relse(&head);
+
+	tree->bthNNodes = total_nodes;
+	tree->bthFree += (new_nodes - new_mapnodes);
+	tree->dirt = 1;
+
+	/* write the backup MDB, not returning until it is written */
+	hfs_mdb_commit(mdb, 1);
+
+	return;
+}
+
+/*
+ * hfs_bnode_free()
+ *
+ * Remove a node from the cache and mark it free in the bitmap.
+ */
+int hfs_bnode_free(struct hfs_bnode_ref *bnr)
+{
+	hfs_u32 node = bnr->bn->node;
+	struct hfs_btree *tree = bnr->bn->tree;
+
+	if (bnr->bn->count != 1) {
+		hfs_warn("hfs_bnode_free: count != 1.\n");
+		return -EIO;
+	}
+
+	hfs_bnode_relse(bnr);
+	hfs_bnode_bitop(tree, node, 0);
+	return 0;
+}
diff --git a/fs/hfs/bdelete.c b/fs/hfs/bdelete.c
new file mode 100644
index 00000000000000..aec139476d6f31
--- /dev/null
+++ b/fs/hfs/bdelete.c
@@ -0,0 +1,488 @@
+/*
+ * linux/fs/hfs/bdelete.c
+ *
+ * Copyright (C) 1995-1997  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * This file contains the code to delete records in a B-tree.
+ *
+ * "XXX" in a comment is a note to myself to consider changing something.
+ *
+ * In function preconditions the term "valid" applied to a pointer to
+ * a structure means that the pointer is non-NULL and the structure it
+ * points to has all fields initialized to consistent values.
+ */
+
+#include "hfs_btree.h"
+
+/*================ Variable-like macros ================*/
+
+#define FULL (HFS_SECTOR_SIZE - sizeof(struct NodeDescriptor))
+#define NO_SPACE (HFS_SECTOR_SIZE+1)
+
+/*================ File-local functions ================*/
+
+/*
+ * bdelete_nonempty()
+ *
+ * Description:
+ *   Deletes a record from a given bnode without regard to it becoming empty.
+ * Input Variable(s):
+ *   struct hfs_brec* brec: pointer to the brec for the deletion
+ *   struct hfs_belem* belem: which node in 'brec' to delete from
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   void
+ * Preconditions:
+ *   'brec' points to a valid (struct hfs_brec).
+ *   'belem' points to a valid (struct hfs_belem) in 'brec'.
+ * Postconditions:
+ *   The record has been inserted in the position indicated by 'brec'.
+ */
+static void bdelete_nonempty(struct hfs_brec *brec, struct hfs_belem *belem)
+{
+	int i, rec, nrecs, tomove;
+	hfs_u16 size;
+	hfs_u8 *start;
+	struct hfs_bnode *bnode = belem->bnr.bn;
+
+	rec = belem->record;
+	nrecs = bnode->ndNRecs;
+	size = bnode_rsize(bnode, rec);
+	tomove = bnode_offset(bnode, nrecs+1) - bnode_offset(bnode, rec+1);
+	
+	/* adjust the record table */
+	for (i = rec+1; i <= nrecs; ++i) {
+		hfs_put_hs(bnode_offset(bnode,i+1) - size, RECTBL(bnode,i));
+	}
+
+	/* move it down */
+	start = bnode_key(bnode, rec);
+	memmove(start, start + size, tomove);
+
+	/* update record count */
+	--bnode->ndNRecs;
+}
+
+/*
+ * del_root()
+ *
+ * Description:
+ *   Delete the current root bnode.
+ * Input Variable(s):
+ *   struct hfs_bnode_ref *root: reference to the root bnode
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   int: 0 on success, error code on failure
+ * Preconditions:
+ *   'root' refers to the root bnode with HFS_LOCK_WRITE access.
+ *   None of 'root's children are held with HFS_LOCK_WRITE access.
+ * Postconditions:
+ *   The current 'root' node is removed from the tree and the depth
+ *    of the tree is reduced by one.
+ *   If 'root' is an index node with exactly one child, then that
+ *    child becomes the new root of the tree.
+ *   If 'root' is an empty leaf node the tree becomes empty.
+ *   Upon return access to 'root' is relinquished.
+ */
+static int del_root(struct hfs_bnode_ref *root)
+{
+	struct hfs_btree *tree = root->bn->tree;
+	struct hfs_bnode_ref child;
+	hfs_u32 node;
+
+	if (root->bn->ndNRecs > 1) {
+		return 0;
+	} else if (root->bn->ndNRecs == 0) {
+		/* tree is empty */
+		tree->bthRoot = 0;
+		tree->root = NULL;
+		tree->bthRoot = 0;
+		tree->bthFNode = 0;
+		tree->bthLNode = 0;
+		--tree->bthDepth;
+		tree->dirt = 1;
+		if (tree->bthDepth) {
+			hfs_warn("hfs_bdelete: empty tree with bthDepth=%d\n",
+				 tree->bthDepth);
+			goto bail;
+		}
+		return hfs_bnode_free(root);
+	} else if (root->bn->ndType == ndIndxNode) {
+		/* tree is non-empty */
+		node = hfs_get_hl(bkey_record(bnode_datastart(root->bn)));
+
+		child = hfs_bnode_find(tree, node, HFS_LOCK_READ);
+		if (!child.bn) {
+			hfs_warn("hfs_bdelete: can't read child node.\n");
+			goto bail;
+		}
+			
+		child.bn->sticky = HFS_STICKY;
+        	if (child.bn->next) {
+                	child.bn->next->prev = child.bn->prev;
+        	}
+        	if (child.bn->prev) {
+                	child.bn->prev->next = child.bn->next;
+        	}
+        	if (bhash(tree, child.bn->node) == child.bn) {
+                	bhash(tree, child.bn->node) = child.bn->next;
+        	}
+		child.bn->next = NULL;
+		child.bn->prev = NULL;
+
+		tree->bthRoot = child.bn->node;
+		tree->root = child.bn;
+
+		/* re-assign bthFNode and bthLNode if the new root is
+                   a leaf node. */
+		if (child.bn->ndType == ndLeafNode) {
+			tree->bthFNode = node;
+			tree->bthLNode = node;
+		}
+		hfs_bnode_relse(&child);
+
+		tree->bthRoot = node;
+		--tree->bthDepth;
+		tree->dirt = 1;
+		if (!tree->bthDepth) {
+			hfs_warn("hfs_bdelete: non-empty tree with "
+				 "bthDepth == 0\n");
+			goto bail;
+		}
+		return hfs_bnode_free(root);	/* marks tree dirty */
+	}
+	hfs_bnode_relse(root);
+	return 0;
+
+bail:
+	hfs_bnode_relse(root);
+	return -EIO;
+}
+
+
+/*
+ * delete_empty_bnode()
+ *
+ * Description:
+ *   Removes an empty non-root bnode from between 'left' and 'right'
+ * Input Variable(s):
+ *   hfs_u32 left_node: node number of 'left' or zero if 'left' is invalid
+ *   struct hfs_bnode_ref *left: reference to the left neighbor of the
+ *    bnode to remove, or invalid if no such neighbor exists.
+ *   struct hfs_bnode_ref *center: reference to the bnode to remove
+ *   hfs_u32 right_node: node number of 'right' or zero if 'right' is invalid
+ *   struct hfs_bnode_ref *right: reference to the right neighbor of the
+ *    bnode to remove, or invalid if no such neighbor exists.
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   void
+ * Preconditions:
+ *   'left_node' is as described above.
+ *   'left' points to a valid (struct hfs_bnode_ref) having HFS_LOCK_WRITE
+ *    access and referring to the left neighbor of 'center' if such a
+ *    neighbor exists, or invalid if no such neighbor exists.
+ *   'center' points to a valid (struct hfs_bnode_ref) having HFS_LOCK_WRITE
+ *    access and referring to the bnode to delete.
+ *   'right_node' is as described above.
+ *   'right' points to a valid (struct hfs_bnode_ref) having HFS_LOCK_WRITE
+ *    access and referring to the right neighbor of 'center' if such a
+ *    neighbor exists, or invalid if no such neighbor exists.
+ * Postconditions:
+ *   If 'left' is valid its 'ndFLink' field becomes 'right_node'.
+ *   If 'right' is valid its 'ndBLink' field becomes 'left_node'.
+ *   If 'center' was the first leaf node then the tree's 'bthFNode'
+ *    field becomes 'right_node' 
+ *   If 'center' was the last leaf node then the tree's 'bthLNode'
+ *    field becomes 'left_node' 
+ *   'center' is NOT freed and access to the nodes is NOT relinquished.
+ */
+static void delete_empty_bnode(hfs_u32 left_node, struct hfs_bnode_ref *left,
+			       struct hfs_bnode_ref *center,
+			       hfs_u32 right_node, struct hfs_bnode_ref *right)
+{
+	struct hfs_bnode *bnode = center->bn;
+
+	if (left_node) {
+		left->bn->ndFLink = right_node;
+	} else if (bnode->ndType == ndLeafNode) {
+		bnode->tree->bthFNode = right_node;
+		bnode->tree->dirt = 1;
+	}
+
+	if (right_node) {
+		right->bn->ndBLink = left_node;
+	} else if (bnode->ndType == ndLeafNode) {
+		bnode->tree->bthLNode = left_node;
+		bnode->tree->dirt = 1;
+	}
+}
+
+/*
+ * balance()
+ *
+ * Description:
+ *   Attempt to equalize space usage in neighboring bnodes.
+ * Input Variable(s):
+ *   struct hfs_bnode *left: the left bnode.
+ *   struct hfs_bnode *right: the right bnode.
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   void
+ * Preconditions:
+ *   'left' and 'right' point to valid (struct hfs_bnode)s obtained
+ *    with HFS_LOCK_WRITE access, and are neighbors.
+ * Postconditions:
+ *   Records are shifted either left or right to make the space usage
+ *   nearly equal.  When exact equality is not possible the break
+ *   point is chosen to reduce data movement.
+ *   The key corresponding to 'right' in its parent is NOT updated.
+ */
+static void balance(struct hfs_bnode *left, struct hfs_bnode *right)
+{
+	int index, left_free, right_free, half;
+
+	left_free = bnode_freespace(left);
+	right_free = bnode_freespace(right);
+	half = (left_free + right_free)/2;
+
+	if (left_free < right_free) {
+		/* shift right to balance */
+		index = left->ndNRecs + 1;
+		while (right_free >= half) {
+			--index;
+			right_free -= bnode_rsize(left,index)+sizeof(hfs_u16);
+		}
+		if (index < left->ndNRecs) {
+#if defined(DEBUG_ALL) || defined(DEBUG_BALANCE)
+			hfs_warn("shifting %d of %d recs right to balance: ",
+			       left->ndNRecs - index, left->ndNRecs);
+#endif
+			hfs_bnode_shift_right(left, right, index+1);
+#if defined(DEBUG_ALL) || defined(DEBUG_BALANCE)
+			hfs_warn("%d,%d\n", left->ndNRecs, right->ndNRecs);
+#endif
+		}
+	} else {
+		/* shift left to balance */
+		index = 0;
+		while (left_free >= half) {
+			++index;
+			left_free -= bnode_rsize(right,index)+sizeof(hfs_u16);
+		}
+		if (index > 1) {
+#if defined(DEBUG_ALL) || defined(DEBUG_BALANCE)
+			hfs_warn("shifting %d of %d recs left to balance: ",
+			       index-1, right->ndNRecs);
+#endif
+			hfs_bnode_shift_left(left, right, index-1);
+#if defined(DEBUG_ALL) || defined(DEBUG_BALANCE)
+			hfs_warn("%d,%d\n", left->ndNRecs, right->ndNRecs);
+#endif
+		}
+	}
+}
+
+/*
+ * bdelete()
+ *
+ * Delete the given record from a B-tree.
+ */
+static int bdelete(struct hfs_brec *brec)
+{
+	struct hfs_btree *tree = brec->tree;
+	struct hfs_belem *belem = brec->bottom;
+	struct hfs_belem *parent = (belem-1);
+	struct hfs_bnode *bnode;
+	hfs_u32 left_node, right_node;
+	struct hfs_bnode_ref left, right;
+	int left_space, right_space, min_space;
+	int fix_right_key;
+	int fix_key;
+	
+	while ((belem > brec->top) &&
+	       (belem->flags & (HFS_BPATH_UNDERFLOW | HFS_BPATH_FIRST))) {
+		bnode = belem->bnr.bn;
+		fix_key = belem->flags & HFS_BPATH_FIRST;
+		fix_right_key = 0;
+
+		bdelete_nonempty(brec, belem);
+
+		if (bnode->node == tree->root->node) {
+			del_root(&belem->bnr);
+			--brec->bottom;
+			goto done;
+		}
+
+		/* check for btree corruption which could lead to deadlock */
+		left_node = bnode->ndBLink;
+		right_node = bnode->ndFLink;
+		if ((left_node && hfs_bnode_in_brec(left_node, brec)) ||
+		    (right_node && hfs_bnode_in_brec(right_node, brec)) ||
+		    (left_node == right_node)) {
+			hfs_warn("hfs_bdelete: corrupt btree\n");
+			hfs_brec_relse(brec, NULL);
+			return -EIO;
+		}
+
+		/* grab the left neighbor if it exists */
+		if (left_node) {
+			hfs_bnode_lock(&belem->bnr, HFS_LOCK_RESRV);
+			left = hfs_bnode_find(tree,left_node,HFS_LOCK_WRITE);
+			if (!left.bn) {
+				hfs_warn("hfs_bdelete: unable to read left "
+					 "neighbor.\n");
+				hfs_brec_relse(brec, NULL);
+				return -EIO;
+			}
+			hfs_bnode_lock(&belem->bnr, HFS_LOCK_WRITE);
+			if (parent->record != 1) {
+				left_space = bnode_freespace(left.bn);
+			} else {
+				left_space = NO_SPACE;
+			}
+		} else {
+			left.bn = NULL;
+			left_space = NO_SPACE;
+		}
+
+		/* grab the right neighbor if it exists */
+		if (right_node) {
+			right = hfs_bnode_find(tree,right_node,HFS_LOCK_WRITE);
+			if (!right.bn) {
+				hfs_warn("hfs_bdelete: unable to read right "
+					 "neighbor.\n");
+				hfs_bnode_relse(&left);
+				hfs_brec_relse(brec, NULL);
+				return -EIO;
+			}
+			if (parent->record < parent->bnr.bn->ndNRecs) {
+				right_space = bnode_freespace(right.bn);
+			} else {
+				right_space = NO_SPACE;
+			}
+		} else {
+			right.bn = NULL;
+			right_space = NO_SPACE;
+		}
+
+		if (left_space < right_space) {
+			min_space = left_space;
+		} else {
+			min_space = right_space;
+		}
+
+		if (min_space == NO_SPACE) {
+			hfs_warn("hfs_bdelete: no siblings?\n");
+			hfs_brec_relse(brec, NULL);
+			return -EIO;
+		}
+
+		if (bnode->ndNRecs == 0) {
+			delete_empty_bnode(left_node, &left, &belem->bnr,
+					   right_node, &right);
+		} else if (min_space + bnode_freespace(bnode) >= FULL) {
+			if ((right_space == NO_SPACE) ||
+			    ((right_space == min_space) &&
+			     (left_space != NO_SPACE))) {
+				hfs_bnode_shift_left(left.bn, bnode,
+						     bnode->ndNRecs);
+			} else {
+				hfs_bnode_shift_right(bnode, right.bn, 1);
+				fix_right_key = 1;
+			}
+			delete_empty_bnode(left_node, &left, &belem->bnr,
+					   right_node, &right);
+		} else if (min_space == right_space) {
+			balance(bnode, right.bn);
+			fix_right_key = 1;
+		} else {
+			balance(left.bn, bnode);
+			fix_key = 1;
+		}
+
+		if (fix_right_key) {
+			hfs_bnode_update_key(brec, belem, right.bn, 1);
+		}
+
+		hfs_bnode_relse(&left);
+		hfs_bnode_relse(&right);
+
+		if (bnode->ndNRecs) {
+			if (fix_key) {
+				hfs_bnode_update_key(brec, belem, bnode, 0);
+			}
+			goto done;
+		}
+
+		hfs_bnode_free(&belem->bnr);
+		--brec->bottom;
+		belem = parent;
+		--parent;
+	}
+
+	if (belem < brec->top) {
+		hfs_warn("hfs_bdelete: Missing parent.\n");
+		hfs_brec_relse(brec, NULL);
+		return -EIO;
+	}
+
+	bdelete_nonempty(brec, belem);
+
+done:
+	hfs_brec_relse(brec, NULL);
+	return 0;
+}
+
+/*================ Global functions ================*/
+
+/*
+ * hfs_bdelete()
+ *
+ * Delete the requested record from a B-tree.
+ */
+int hfs_bdelete(struct hfs_btree *tree, const struct hfs_bkey *key)
+{ 
+	struct hfs_belem *belem;
+	struct hfs_bnode *bnode;
+	struct hfs_brec brec;
+	int retval;
+
+	if (!tree || (tree->magic != HFS_BTREE_MAGIC) || !key) {
+		hfs_warn("hfs_bdelete: invalid arguments.\n");
+		return -EINVAL;
+	}
+
+	retval = hfs_bfind(&brec, tree, key, HFS_BFIND_DELETE);
+	if (!retval) {
+		belem = brec.bottom;
+		bnode = belem->bnr.bn;
+
+		belem->flags = 0;
+        	if ((bnode->ndNRecs * sizeof(hfs_u16) + bnode_end(bnode) -
+		     bnode_rsize(bnode, belem->record)) < FULL/2) {
+			belem->flags |= HFS_BPATH_UNDERFLOW;
+		}
+		if (belem->record == 1) {
+			belem->flags |= HFS_BPATH_FIRST;
+		}
+
+		if (!belem->flags) {
+			hfs_brec_lock(&brec, brec.bottom);
+		} else {
+			hfs_brec_lock(&brec, NULL);
+		}
+
+		retval = bdelete(&brec);
+		if (!retval) {
+			--brec.tree->bthNRecs;
+			brec.tree->dirt = 1;
+		}
+		hfs_brec_relse(&brec, NULL);
+	}
+	return retval;
+}
diff --git a/fs/hfs/bfind.c b/fs/hfs/bfind.c
new file mode 100644
index 00000000000000..8e84133d20bd9a
--- /dev/null
+++ b/fs/hfs/bfind.c
@@ -0,0 +1,322 @@
+/*
+ * linux/fs/hfs/bfind.c
+ *
+ * Copyright (C) 1995, 1996  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * This file contains the code to access records in a btree.
+ *
+ * "XXX" in a comment is a note to myself to consider changing something.
+ *
+ * In function preconditions the term "valid" applied to a pointer to
+ * a structure means that the pointer is non-NULL and the structure it
+ * points to has all fields initialized to consistent values.
+ */
+
+#include "hfs_btree.h"
+
+/*================ Global functions ================*/
+
+/*
+ * hfs_brec_relse()
+ *
+ * Description:
+ *   This function releases some of the nodes associated with a brec.
+ * Input Variable(s):
+ *   struct hfs_brec *brec: pointer to the brec to release some nodes from.
+ *   struct hfs_belem *elem: the last node to release or NULL for all
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   void
+ * Preconditions:
+ *   'brec' points to a "valid" (struct hfs_brec)
+ * Postconditions: 
+ *   All nodes between the indicated node and the beginning of the path
+ *    are released.
+ */
+void hfs_brec_relse(struct hfs_brec *brec, struct hfs_belem *elem)
+{
+	if (!elem) {
+		elem = brec->bottom;
+	}
+
+	while (brec->top <= elem) {
+		hfs_bnode_relse(&brec->top->bnr);
+		++brec->top;
+	}
+}
+
+/*
+ * hfs_bfind()
+ *
+ * Description:
+ *   This function has sole responsibility for locating existing
+ *   records in a B-tree.  Given a B-tree and a key it locates the
+ *   "greatest" record "less than or equal to" the given key.  The
+ *   exact behavior is determined by the bits of the flags variable as
+ *   follows:
+ *     ('flags' & HFS_LOCK_MASK):
+ *      The lock_type argument to be used when calling hfs_bnode_find().
+ *     HFS_BFIND_EXACT: only accept an exact match, otherwise take the
+ *	"largest" record less than 'target' as a "match"
+ *     HFS_BFIND_LOCK: request HFS_LOCK_WRITE access to the node containing
+ *	the "matching" record when it is located
+ *     HFS_BPATH_FIRST: keep access to internal nodes when accessing their
+ *      first child.
+ *     HFS_BPATH_OVERFLOW: keep access to internal nodes when the accessed
+ *      child is too full to insert another pointer record.
+ *     HFS_BPATH_UNDERFLOW: keep access to internal nodes when the accessed
+ *      child is would be less than half full upon removing a pointer record.
+ * Input Variable(s):
+ *   struct hfs_brec *brec: pointer to the (struct hfs_brec) to hold
+ *    the search results.
+ *   struct hfs_bkey *target: pointer to the (struct hfs_bkey)
+ *    to search for
+ *   int flags: bitwise OR of flags which determine the function's behavior
+ * Output Variable(s):
+ *   'brec' contains the results of the search on success or is invalid
+ *    on failure.
+ * Returns:
+ *   int: 0 or 1 on success or an error code on failure:
+ *     -EINVAL: one of the input variables was NULL.
+ *     -ENOENT: tree is valid but empty or no "matching" record was located.
+ *	 If the HFS_BFIND_EXACT bit of 'flags' is not set then the case of no
+ *	 matching record will give a 'brec' with a 'record' field of zero
+ *	 rather than returning this error.
+ *     -EIO: an I/O operation or an assertion about the structure of a
+ *       valid B-tree failed indicating corruption of either the B-tree
+ *       structure on the disk or one of the in-core structures representing
+ *       the B-tree.
+ *	 (This could also be returned if a kmalloc() call failed in a
+ *	 subordinate routine that is intended to get the data from the
+ *	 disk or the buffer cache.)
+ * Preconditions:
+ *   'brec' is NULL or points to a (struct hfs_brec) with a 'tree' field
+ *    which points to a valid (struct hfs_btree).
+ *   'target' is NULL or points to a "valid" (struct hfs_bkey)
+ * Postconditions:
+ *   If 'brec', 'brec->tree' or 'target' is NULL then -EINVAL is returned.
+ *   If 'brec', 'brec->tree' and 'target' are non-NULL but the tree
+ *   is empty then -ENOENT is returned.
+ *   If 'brec', 'brec->tree' and 'target' are non-NULL but the call to
+ *   hfs_brec_init() fails then '*brec' is NULL and -EIO is returned.
+ *   If 'brec', 'brec->tree' and 'target' are non-NULL and the tree is
+ *   non-empty then the tree is searched as follows:
+ *    If any call to hfs_brec_next() fails or returns a node that is
+ *     neither an index node nor a leaf node then -EIO is returned to
+ *     indicate that the B-tree or buffer-cache are corrupted.
+ *    If every record in the tree is "greater than" the given key
+ *     and the HFS_BFIND_EXACT bit of 'flags' is set then -ENOENT is returned.
+ *    If every record in the tree is "greater than" the given key
+ *     and the HFS_BFIND_EXACT bit of 'flags' is clear then 'brec' refers
+ *     to the first leaf node in the tree and has a 'record' field of
+ *     zero, and 1 is returned.
+ *    If a "matching" record is located with key "equal to" 'target'
+ *     then the return value is 0 and 'brec' indicates the record.
+ *    If a "matching" record is located with key "greater than" 'target'
+ *     then the behavior is determined as follows:
+ *	If the HFS_BFIND_EXACT bit of 'flags' is not set then 1 is returned
+ *       and 'brec' refers to the "matching" record.
+ *	If the HFS_BFIND_EXACT bit of 'flags' is set then -ENOENT is returned.
+ *    If the return value is non-negative and the HFS_BFIND_LOCK bit of
+ *     'flags' is set then hfs_brec_lock() is called on the bottom element
+ *     of 'brec' before returning.
+ */
+int hfs_bfind(struct hfs_brec *brec, struct hfs_btree *tree,
+	      const struct hfs_bkey *target, int flags)
+{
+	struct hfs_belem *curr;
+	struct hfs_bkey *key;
+	struct hfs_bnode *bn;
+	int result, ntype;
+
+	/* check for invalid arguments */
+	if (!brec || (tree->magic != HFS_BTREE_MAGIC) || !target) {
+		return -EINVAL;
+	}
+
+	/* check for empty tree */
+	if (!tree->root || !tree->bthNRecs) {
+		return -ENOENT;
+	}
+
+	/* start search at root of tree */
+	if (!(curr = hfs_brec_init(brec, tree, flags))) {
+		return -EIO;
+	}
+
+	/* traverse the tree */
+	do {
+		bn = curr->bnr.bn;
+
+		if (!curr->record) {
+			hfs_warn("hfs_bfind: empty bnode\n");
+			hfs_brec_relse(brec, NULL);
+			return -EIO;
+		}
+
+		/* reverse linear search yielding largest key "less
+		   than or equal to" 'target'.
+		   It is questionable whether a binary search would be
+		   significantly faster */
+		do {
+			key = belem_key(curr);
+			if (!key->KeyLen) {
+				hfs_warn("hfs_bfind: empty key\n");
+				hfs_brec_relse(brec, NULL);
+				return -EIO;
+			}
+			result = (tree->compare)(target, key);
+		} while ((result<0) && (--curr->record));
+
+		ntype = bn->ndType;
+
+		/* see if all keys > target */
+		if (!curr->record) {
+			if (bn->ndBLink) {
+				/* at a node other than the left-most at a
+				   given level it means the parent had an
+				   incorrect key for this child */
+				hfs_brec_relse(brec, NULL);
+				hfs_warn("hfs_bfind: corrupted b-tree %d.\n",
+					 (int)ntohl(tree->entry.cnid));
+				return -EIO;
+			}
+			if (flags & HFS_BFIND_EXACT) {
+				/* we're not going to find it */
+				hfs_brec_relse(brec, NULL);
+				return -ENOENT;
+			}
+			if (ntype == ndIndxNode) {
+				/* since we are at the left-most node at
+				   the current level and looking for the
+				   predecessor of 'target' keep going down */
+				curr->record = 1;
+			} else {
+				/* we're at first leaf so fall through */
+			}
+		}
+
+		/* get next node if necessary */
+		if ((ntype == ndIndxNode) && !(curr = hfs_brec_next(brec))) {
+			return -EIO;
+		}
+	} while (ntype == ndIndxNode);
+
+	if (key->KeyLen > tree->bthKeyLen) {
+		hfs_warn("hfs_bfind: oversized key\n");
+		hfs_brec_relse(brec, NULL);
+		return -EIO;
+	}
+
+	if (ntype != ndLeafNode) {
+		hfs_warn("hfs_bfind: invalid node type %02x in node %d of "
+		         "btree %d\n", bn->ndType, bn->node,
+		         (int)ntohl(tree->entry.cnid));
+		hfs_brec_relse(brec, NULL);
+		return -EIO;
+	}
+
+	if ((flags & HFS_BFIND_EXACT) && result) {
+		hfs_brec_relse(brec, NULL);
+		return -ENOENT;
+	}
+
+	if (!(flags & HFS_BPATH_MASK)) {
+		hfs_brec_relse(brec, brec->bottom-1);
+	}
+
+	if (flags & HFS_BFIND_LOCK) {
+		hfs_brec_lock(brec, brec->bottom);
+	}
+
+	brec->key  = brec_key(brec);
+	brec->data = bkey_record(brec->key);
+
+	return result ? 1 : 0;
+}
+
+/*
+ * hfs_bsucc()
+ *
+ * Description:
+ *   This function overwrites '*brec' with its successor in the B-tree,
+ *   obtaining the same type of access.
+ * Input Variable(s):
+ *   struct hfs_brec *brec: address of the (struct hfs_brec) to overwrite
+ *    with its successor
+ * Output Variable(s):
+ *   struct hfs_brec *brec: address of the successor of the original
+ *    '*brec' or to invalid data
+ * Returns:
+ *   int: 0 on success, or one of -EINVAL, -EIO, or -EINVAL on failure
+ * Preconditions:
+ *   'brec' pointers to a "valid" (struct hfs_brec)
+ * Postconditions:
+ *   If the given '*brec' is not "valid" -EINVAL is returned and
+ *    '*brec' is unchanged.
+ *   If the given 'brec' is "valid" but has no successor then -ENOENT
+ *    is returned and '*brec' is invalid.
+ *   If a call to hfs_bnode_find() is necessary to find the successor,
+ *    but fails then -EIO is returned and '*brec' is invalid.
+ *   If none of the three previous conditions prevents finding the
+ *    successor of '*brec', then 0 is returned, and '*brec' is overwritten
+ *    with the (struct hfs_brec) for its successor.
+ *   In the cases when '*brec' is invalid, the old records is freed.
+ */
+int hfs_bsucc(struct hfs_brec *brec, int count)
+{
+	struct hfs_belem *belem;
+	struct hfs_bnode *bn;
+
+	if (!brec || !(belem = brec->bottom) || (belem != brec->top) ||
+	    !(bn = belem->bnr.bn) || (bn->magic != HFS_BNODE_MAGIC) ||
+	    !bn->tree || (bn->tree->magic != HFS_BTREE_MAGIC) ||
+	    !hfs_buffer_ok(bn->buf)) {
+		hfs_warn("hfs_bsucc: invalid/corrupt arguments.\n");
+		return -EINVAL;
+	}
+
+	while (count) {
+		int left = bn->ndNRecs - belem->record;
+
+		if (left < count) {
+			struct hfs_bnode_ref old;
+			hfs_u32 node;
+
+			/* Advance to next node */
+			if (!(node = bn->ndFLink)) {
+				hfs_brec_relse(brec, belem);
+				return -ENOENT;
+			}
+			if (node == bn->node) {
+				hfs_warn("hfs_bsucc: corrupt btree\n");
+				hfs_brec_relse(brec, belem);
+				return -EIO;
+			}
+			old = belem->bnr;
+			belem->bnr = hfs_bnode_find(brec->tree, node,
+						    belem->bnr.lock_type);
+			hfs_bnode_relse(&old);
+			if (!(bn = belem->bnr.bn)) {
+				return -EIO;
+			}
+			belem->record = 1;
+			count -= (left + 1);
+		} else {
+			belem->record += count;
+			break;
+		}
+	}
+	brec->key  = belem_key(belem);
+	brec->data = bkey_record(brec->key);
+
+	if (brec->key->KeyLen > brec->tree->bthKeyLen) {
+		hfs_warn("hfs_bsucc: oversized key\n");
+		hfs_brec_relse(brec, NULL);
+		return -EIO;
+	}
+
+	return 0;
+}
diff --git a/fs/hfs/bins_del.c b/fs/hfs/bins_del.c
new file mode 100644
index 00000000000000..a03b959e3f126a
--- /dev/null
+++ b/fs/hfs/bins_del.c
@@ -0,0 +1,231 @@
+/*
+ * linux/fs/hfs/bins_del.c
+ *
+ * Copyright (C) 1995-1997  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * This file contains the code common to inserting and deleting records
+ * in a B-tree.
+ *
+ * "XXX" in a comment is a note to myself to consider changing something.
+ *
+ * In function preconditions the term "valid" applied to a pointer to
+ * a structure means that the pointer is non-NULL and the structure it
+ * points to has all fields initialized to consistent values.
+ */
+
+#include "hfs_btree.h"
+
+/*================ File-local functions ================*/
+
+/*
+ * hfs_bnode_update_key()
+ *
+ * Description:
+ *   Updates the key for a bnode in its parent.
+ *   The key change is propagated up the tree as necessary.
+ * Input Variable(s):
+ *   struct hfs_brec *brec: the search path to update keys in
+ *   struct hfs_belem *belem: the search path element with the changed key
+ *   struct hfs_bnode *bnode: the bnode with the changed key
+ *   int offset: the "distance" from 'belem->bn' to 'bnode':
+ *    0 if the change is in 'belem->bn',
+ *    1 if the change is in its right sibling, etc.
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   void
+ * Preconditions:
+ *   'brec' points to a valid (struct hfs_brec)
+ *   'belem' points to a valid (struct hfs_belem) in 'brec'.
+ *   'bnode' points to a valid (struct hfs_bnode) which is non-empty
+ *    and is 'belem->bn' or one of its siblings.
+ *   'offset' is as described above.
+ * Postconditions:
+ *   The key change is propagated up the tree as necessary.
+ */
+void hfs_bnode_update_key(struct hfs_brec *brec, struct hfs_belem *belem,
+			  struct hfs_bnode *bnode, int offset)
+{
+	int record = (--belem)->record + offset;
+	void *key = bnode_datastart(bnode) + 1;
+	int keysize = brec->tree->bthKeyLen;
+	struct hfs_belem *limit;
+
+  	memcpy(1+bnode_key(belem->bnr.bn, record), key, keysize);
+
+	/* don't trash the header */
+	if (brec->top > &brec->elem[1]) {
+		limit = brec->top;
+	} else {
+		limit = &brec->elem[1];
+	}
+
+	while ((belem > limit) && (record == 1)) {
+		record = (--belem)->record;
+		memcpy(1+belem_key(belem), key, keysize);
+	}
+}
+
+/*
+ * hfs_bnode_shift_right()
+ *
+ * Description:
+ *   Shifts some records from a node to its right neighbor.
+ * Input Variable(s):
+ *   struct hfs_bnode* left: the node to shift records from
+ *   struct hfs_bnode* right: the node to shift records to
+ *   hfs_u16 first: the number of the first record in 'left' to move to 'right'
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   void
+ * Preconditions:
+ *   'left' and 'right' point to valid (struct hfs_bnode)s.
+ *   'left' contains at least 'first' records.
+ *   'right' has enough free space to hold the records to be moved from 'left'
+ * Postconditions:
+ *   The record numbered 'first' and all records after it in 'left' are
+ *   placed at the beginning of 'right'.
+ *   The key corresponding to 'right' in its parent is NOT updated.
+ */
+void hfs_bnode_shift_right(struct hfs_bnode *left, struct hfs_bnode *right,
+			   int first)
+{
+	int i, adjust, nrecs;
+	unsigned size;
+	hfs_u16 *to, *from;
+
+	if ((first <= 0) || (first > left->ndNRecs)) {
+		hfs_warn("bad argument to shift_right: first=%d, nrecs=%d\n",
+		       first, left->ndNRecs);
+		return;
+	}
+
+	/* initialize variables */
+	nrecs = left->ndNRecs + 1 - first;
+	size = bnode_end(left) - bnode_offset(left, first);
+
+	/* move (possibly empty) contents of right node forward */
+	memmove(bnode_datastart(right) + size,
+		bnode_datastart(right), 
+		bnode_end(right) - sizeof(struct NodeDescriptor));
+
+	/* copy in new records */
+	memcpy(bnode_datastart(right), bnode_key(left,first), size);
+
+	/* fix up offsets in right node */
+	i = right->ndNRecs + 1;
+	from = RECTBL(right, i);
+	to = from - nrecs;
+	while (i--) {
+		hfs_put_hs(hfs_get_hs(from++) + size, to++);
+	}
+	adjust = sizeof(struct NodeDescriptor) - bnode_offset(left, first);
+	i = nrecs-1;
+	from = RECTBL(left, first+i);
+	while (i--) {
+		hfs_put_hs(hfs_get_hs(from++) + adjust, to++);
+	}
+
+	/* fix record counts */
+	left->ndNRecs -= nrecs;
+	right->ndNRecs += nrecs;
+}
+
+/*
+ * hfs_bnode_shift_left()
+ *
+ * Description:
+ *   Shifts some records from a node to its left neighbor.
+ * Input Variable(s):
+ *   struct hfs_bnode* left: the node to shift records to
+ *   struct hfs_bnode* right: the node to shift records from
+ *   hfs_u16 last: the number of the last record in 'right' to move to 'left'
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   void
+ * Preconditions:
+ *   'left' and 'right' point to valid (struct hfs_bnode)s.
+ *   'right' contains at least 'last' records.
+ *   'left' has enough free space to hold the records to be moved from 'right'
+ * Postconditions:
+ *   The record numbered 'last' and all records before it in 'right' are
+ *   placed at the end of 'left'.
+ *   The key corresponding to 'right' in its parent is NOT updated.
+ */
+void hfs_bnode_shift_left(struct hfs_bnode *left, struct hfs_bnode *right,
+			  int last)
+{
+	int i, adjust, nrecs;
+	unsigned size;
+	hfs_u16 *to, *from;
+
+	if ((last <= 0) || (last > right->ndNRecs)) {
+		hfs_warn("bad argument to shift_left: last=%d, nrecs=%d\n",
+		       last, right->ndNRecs);
+		return;
+	}
+
+	/* initialize variables */
+	size = bnode_offset(right, last + 1) - sizeof(struct NodeDescriptor);
+
+	/* copy records to left node */
+	memcpy(bnode_dataend(left), bnode_datastart(right), size);
+
+	/* move (possibly empty) remainder of right node backward */
+	memmove(bnode_datastart(right), bnode_datastart(right) + size, 
+			bnode_end(right) - bnode_offset(right, last + 1));
+
+	/* fix up offsets */
+	nrecs = left->ndNRecs;
+	i = last;
+	from = RECTBL(right, 2);
+	to = RECTBL(left, nrecs + 2);
+	adjust = bnode_offset(left, nrecs + 1) - sizeof(struct NodeDescriptor);
+	while (i--) {
+		hfs_put_hs(hfs_get_hs(from--) + adjust, to--);
+	}
+	i = right->ndNRecs + 1 - last;
+	++from;
+	to = RECTBL(right, 1);
+	while (i--) {
+		hfs_put_hs(hfs_get_hs(from--) - size, to--);
+	}
+
+	/* fix record counts */
+	left->ndNRecs += last;
+	right->ndNRecs -= last;
+}
+
+/*
+ * hfs_bnode_in_brec()
+ *
+ * Description:
+ *   Determines whethet a given bnode is part of a given brec.
+ *   This is used to avoid deadlock in the case of a corrupted b-tree.
+ * Input Variable(s):
+ *   hfs_u32 node: the number of the node to check for.
+ *   struct hfs_brec* brec: the brec to check in.
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   int: 1 it found, 0 if not
+ * Preconditions:
+ *   'brec' points to a valid struct hfs_brec.
+ * Postconditions:
+ *   'brec' is unchanged.
+ */
+int hfs_bnode_in_brec(hfs_u32 node, const struct hfs_brec *brec)
+{
+	const struct hfs_belem *belem = brec->bottom;
+
+	while (belem && (belem >= brec->top)) {
+		if (belem->bnr.bn && (belem->bnr.bn->node == node)) {
+			return 1;
+		}
+		--belem;
+	}
+	return 0;
+}
diff --git a/fs/hfs/binsert.c b/fs/hfs/binsert.c
new file mode 100644
index 00000000000000..6f0853892dcb55
--- /dev/null
+++ b/fs/hfs/binsert.c
@@ -0,0 +1,551 @@
+/*
+ * linux/fs/hfs/binsert.c
+ *
+ * Copyright (C) 1995-1997  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * This file contains the code to insert records in a B-tree.
+ *
+ * "XXX" in a comment is a note to myself to consider changing something.
+ *
+ * In function preconditions the term "valid" applied to a pointer to
+ * a structure means that the pointer is non-NULL and the structure it
+ * points to has all fields initialized to consistent values.
+ */
+
+#include "hfs_btree.h"
+
+/*================ File-local functions ================*/
+
+/* btree locking functions */
+static inline void hfs_btree_lock(struct hfs_btree *tree)
+{
+  while (tree->lock) 
+    hfs_sleep_on(&tree->wait);
+  tree->lock = 1;
+}
+
+static inline void hfs_btree_unlock(struct hfs_btree *tree)
+{
+  tree->lock = 0;
+  hfs_wake_up(&tree->wait);
+}
+
+/*
+ * binsert_nonfull()
+ *
+ * Description:
+ *   Inserts a record in a given bnode known to have sufficient space.
+ * Input Variable(s):
+ *   struct hfs_brec* brec: pointer to the brec for the insertion
+ *   struct hfs_belem* belem: the element in the search path to insert in
+ *   struct hfs_bkey* key: pointer to the key for the record to insert
+ *   void* data: pointer to the record to insert
+ *   hfs_u16 keysize: size of the key to insert
+ *   hfs_u16 datasize: size of the record to insert
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   NONE
+ * Preconditions:
+ *   'brec' points to a valid (struct hfs_brec).
+ *   'belem' points to a valid (struct hfs_belem) in 'brec', the node
+ *    of which has enough free space to insert 'key' and 'data'.
+ *   'key' is a pointer to a valid (struct hfs_bkey) of length 'keysize'
+ *    which, in sorted order, belongs at the location indicated by 'brec'.
+ *   'data' is non-NULL an points to appropriate data of length 'datasize'
+ * Postconditions:
+ *   The record has been inserted in the position indicated by 'brec'.
+ */
+static void binsert_nonfull(struct hfs_brec *brec, struct hfs_belem *belem,
+			    const struct hfs_bkey *key, const void *data,
+			    hfs_u8 keysize, hfs_u16 datasize)
+{
+	int i, rec, nrecs, size, tomove;
+	hfs_u8 *start;
+	struct hfs_bnode *bnode = belem->bnr.bn;
+
+	rec = ++(belem->record);
+	size = ROUND(keysize+1) + datasize;
+	nrecs = bnode->ndNRecs + 1;
+	tomove = bnode_offset(bnode, nrecs) - bnode_offset(bnode, rec);
+	
+	/* adjust the record table */
+	for (i = nrecs; i >= rec; --i) {
+		hfs_put_hs(bnode_offset(bnode,i) + size, RECTBL(bnode,i+1));
+	}
+
+	/* make room */
+	start = bnode_key(bnode, rec);
+	memmove(start + size, start, tomove);
+
+	/* copy in the key and the data*/
+	*start = keysize;
+	keysize = ROUND(keysize+1);
+	memcpy(start + 1, (hfs_u8 *)key + 1, keysize-1);
+	memcpy(start + keysize, data, datasize);
+
+	/* update record count */
+	++bnode->ndNRecs;
+}
+
+/*
+ * add_root()
+ *
+ * Description:
+ *   Adds a new root to a B*-tree, increasing its height.
+ * Input Variable(s):
+ *   struct hfs_btree *tree: the tree to add a new root to
+ *   struct hfs_bnode *left: the new root's first child or NULL
+ *   struct hfs_bnode *right: the new root's second child or NULL
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   void
+ * Preconditions:
+ *   'tree' points to a valid (struct hfs_btree).
+ *   'left' and 'right' point to valid (struct hfs_bnode)s, which
+ *    resulted from splitting the old root node, or are both NULL
+ *    if there was no root node before.
+ * Postconditions:
+ *   Upon success a new root node is added to 'tree' with either
+ *    two children ('left' and 'right') or none.
+ */
+static void add_root(struct hfs_btree *tree,
+		     struct hfs_bnode *left,
+		     struct hfs_bnode *right)
+{
+	struct hfs_bnode_ref bnr;
+	struct hfs_bnode *root;
+	struct hfs_bkey *key;
+	int keylen = tree->bthKeyLen;
+
+	if (left && !right) {
+		hfs_warn("add_root: LEFT but no RIGHT\n");
+		return;
+	}
+
+	bnr = hfs_bnode_alloc(tree);
+	if (!(root = bnr.bn)) {
+		return;
+	}
+
+	root->sticky = HFS_STICKY;
+	tree->root = root;
+	tree->bthRoot = root->node;
+	++tree->bthDepth;
+
+	root->ndNHeight = tree->bthDepth;
+	root->ndFLink = 0;
+	root->ndBLink = 0;
+
+	if (!left) {
+		/* tree was empty */
+		root->ndType  = ndLeafNode;
+		root->ndNRecs = 0;
+
+		tree->bthFNode = root->node;
+		tree->bthLNode = root->node;
+	} else {
+		root->ndType  = ndIndxNode;
+		root->ndNRecs = 2;
+
+		hfs_put_hs(sizeof(struct NodeDescriptor) + ROUND(1+keylen) +
+			   sizeof(hfs_u32), RECTBL(root, 2));
+		key = bnode_key(root, 1);
+		key->KeyLen = keylen;
+		memcpy(key->value,
+		       ((struct hfs_bkey *)bnode_key(left, 1))->value, keylen);
+		hfs_put_hl(left->node, bkey_record(key));
+		
+		hfs_put_hs(sizeof(struct NodeDescriptor) + 2*ROUND(1+keylen) +
+			   2*sizeof(hfs_u32), RECTBL(root, 3));
+		key = bnode_key(root, 2);
+		key->KeyLen = keylen;
+		memcpy(key->value,
+		       ((struct hfs_bkey *)bnode_key(right, 1))->value, keylen);
+		hfs_put_hl(right->node, bkey_record(key));
+
+		/* the former root (left) is now just a normal node */
+		left->sticky = HFS_NOT_STICKY;
+		if ((left->next = bhash(tree, left->node))) {
+			left->next->prev = left;
+		}
+		bhash(tree, left->node) = left;
+	}
+	hfs_bnode_relse(&bnr);
+	tree->dirt = 1;
+}
+
+/*
+ * insert_empty_bnode()
+ *
+ * Description:
+ *   Adds an empty node to the right of 'left'.
+ * Input Variable(s):
+ *   struct hfs_btree *tree: the tree to add a node to
+ *   struct hfs_bnode *left: the node to add a node after
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   struct hfs_bnode_ref *: reference to the new bnode.
+ * Preconditions:
+ *   'tree' points to a valid (struct hfs_btree) with at least 1 free node.
+ *   'left' points to a valid (struct hfs_bnode) belonging to 'tree'.
+ * Postconditions:
+ *   If NULL is returned then 'tree' and 'left' are unchanged.
+ *   Otherwise a node with 0 records is inserted in the tree to the right
+ *   of the node 'left'.  The 'ndFLink' of 'left' and the 'ndBLink' of
+ *   the former right-neighbor of 'left' (if one existed) point to the
+ *   new node.	If 'left' had no right neighbor and is a leaf node the
+ *   the 'bthLNode' of 'tree' points to the new node.  The free-count and
+ *   bitmap for 'tree' are kept current by hfs_bnode_alloc() which supplies
+ *   the required node.
+ */
+static struct hfs_bnode_ref insert_empty_bnode(struct hfs_btree *tree,
+					       struct hfs_bnode *left)
+{
+	struct hfs_bnode_ref retval;
+	struct hfs_bnode_ref right;
+
+	retval = hfs_bnode_alloc(tree);
+	if (!retval.bn) {
+		hfs_warn("hfs_binsert: out of bnodes?.\n");
+		goto done;
+	}
+	retval.bn->sticky = HFS_NOT_STICKY;
+	if ((retval.bn->next = bhash(tree, retval.bn->node))) {
+		retval.bn->next->prev = retval.bn;
+	}
+	bhash(tree, retval.bn->node) = retval.bn;
+
+	if (left->ndFLink) {
+		right = hfs_bnode_find(tree, left->ndFLink, HFS_LOCK_WRITE);
+		if (!right.bn) {
+			hfs_warn("hfs_binsert: corrupt btree.\n");
+			hfs_bnode_bitop(tree, retval.bn->node, 0);
+			hfs_bnode_relse(&retval);
+			goto done;
+		}
+		right.bn->ndBLink = retval.bn->node;
+		hfs_bnode_relse(&right);
+	} else if (left->ndType == ndLeafNode) {
+		tree->bthLNode = retval.bn->node;
+		tree->dirt = 1;
+	}
+
+	retval.bn->ndFLink   = left->ndFLink;
+	retval.bn->ndBLink   = left->node;
+	retval.bn->ndType    = left->ndType;
+	retval.bn->ndNHeight = left->ndNHeight;
+	retval.bn->ndNRecs   = 0;
+
+	left->ndFLink = retval.bn->node;
+
+ done:
+	return retval;
+}
+
+/*
+ * split()
+ *
+ * Description:
+ *   Splits an over full node during insertion.
+ *   Picks the split point that results in the most-nearly equal
+ *   space usage in the new and old nodes.
+ * Input Variable(s):
+ *   struct hfs_belem *elem: the over full node.
+ *   int size: the number of bytes to be used by the new record and its key.
+ * Output Variable(s):
+ *   struct hfs_belem *elem: changed to indicate where the new record
+ *    should be inserted.
+ * Returns:
+ *   struct hfs_bnode_ref: reference to the new bnode.
+ * Preconditions:
+ *   'elem' points to a valid path element corresponding to the over full node.
+ *   'size' is positive.
+ * Postconditions:
+ *   The records in the node corresponding to 'elem' are redistributed across
+ *   the old and new nodes so that after inserting the new record, the space
+ *   usage in these two nodes is as equal as possible.
+ *   'elem' is updated so that a call to binsert_nonfull() will insert the
+ *   new record in the correct location.
+ */
+static inline struct hfs_bnode_ref split(struct hfs_belem *elem, int size)
+{
+	struct hfs_bnode *bnode = elem->bnr.bn;
+	int nrecs, cutoff, index, tmp, used, in_right;
+	struct hfs_bnode_ref right;
+
+	right = insert_empty_bnode(bnode->tree, bnode);
+	if (right.bn) {
+		nrecs = bnode->ndNRecs;
+		cutoff = (size + bnode_end(bnode) -
+			      sizeof(struct NodeDescriptor) +
+			      (nrecs+1)*sizeof(hfs_u16))/2;
+		used = 0;
+		in_right = 1;
+		/* note that this only works because records sizes are even */
+		for (index=1; index <= elem->record; ++index) {
+			tmp = (sizeof(hfs_u16) + bnode_rsize(bnode, index))/2;
+			used += tmp;
+			if (used > cutoff) {
+				goto found;
+			}
+			used += tmp;
+		}
+		tmp = (size + sizeof(hfs_u16))/2;
+		used += tmp;
+		if (used > cutoff) {
+			goto found;
+		}
+		in_right = 0;
+		used += tmp;
+		for (; index <= nrecs; ++index) {
+			tmp = (sizeof(hfs_u16) + bnode_rsize(bnode, index))/2;
+			used += tmp;
+			if (used > cutoff) {
+				goto found;
+			}
+			used += tmp;
+		}
+		/* couldn't find the split point! */
+		hfs_bnode_relse(&right);
+	}
+	return right;
+
+found:
+	if (in_right) {
+		elem->bnr = right;
+		elem->record -= index-1;
+	}
+	hfs_bnode_shift_right(bnode, right.bn, index);
+
+	return right;
+}
+
+/*
+ * binsert()
+ *
+ * Description:
+ *   Inserts a record in a tree known to have enough room, even if the
+ *   insertion requires the splitting of nodes.
+ * Input Variable(s):
+ *    struct hfs_brec *brec: partial path to the node to insert in
+ *    const struct hfs_bkey *key: key for the new record
+ *    const void *data: data for the new record
+ *    hfs_u8 keysize: size of the key
+ *    hfs_u16 datasize: size of the data
+ *    int reserve: number of nodes reserved in case of splits
+ * Output Variable(s):
+ *    *brec = NULL
+ * Returns:
+ *    int: 0 on success, error code on failure
+ * Preconditions:
+ *    'brec' points to a valid (struct hfs_brec) corresponding to a
+ *     record in a leaf node, after which a record is to be inserted,
+ *     or to "record 0" of the leaf node if the record is to be inserted
+ *     before all existing records in the node.	 The (struct hfs_brec)
+ *     includes all ancestors of the leaf node that are needed to
+ *     complete the insertion including the parents of any nodes that
+ *     will be split.
+ *    'key' points to a valid (struct hfs_bkey) which is appropriate
+ *     to this tree, and which belongs at the insertion point.
+ *    'data' points data appropriate for the indicated node.
+ *    'keysize' gives the size in bytes of the key.
+ *    'datasize' gives the size in bytes of the data.
+ *    'reserve' gives the number of nodes that have been reserved in the
+ *     tree to allow for splitting of nodes.
+ * Postconditions:
+ *    All 'reserve'd nodes have been either used or released.
+ *    *brec = NULL
+ *    On success the key and data have been inserted at the indicated
+ *    location in the tree, all appropriate fields of the in-core data
+ *    structures have been changed and updated versions of the on-disk
+ *    data structures have been scheduled for write-back to disk.
+ *    On failure the B*-tree is probably invalid both on disk and in-core.
+ *
+ *    XXX: Some attempt at repair might be made in the event of failure,
+ *    or the fs should be remounted read-only so things don't get worse.
+ */
+static int binsert(struct hfs_brec *brec, const struct hfs_bkey *key,
+		   const void *data, hfs_u8 keysize, hfs_u16 datasize,
+		   int reserve)
+{
+	struct hfs_bnode_ref left, right, other;
+	struct hfs_btree *tree = brec->tree;
+	struct hfs_belem *belem = brec->bottom;
+	int tmpsize = 1 + tree->bthKeyLen;
+	struct hfs_bkey *tmpkey = hfs_malloc(tmpsize);
+	hfs_u32 node;
+	
+	while ((belem >= brec->top) && (belem->flags & HFS_BPATH_OVERFLOW)) {
+		left = belem->bnr;
+		if (left.bn->ndFLink &&
+                    hfs_bnode_in_brec(left.bn->ndFLink, brec)) {
+			hfs_warn("hfs_binsert: corrupt btree\n");
+			tree->reserved -= reserve;
+			hfs_free(tmpkey, tmpsize);
+			return -EIO;
+		}
+			
+		right = split(belem, ROUND(keysize+1) + ROUND(datasize));
+		--reserve;
+		--tree->reserved;
+		if (!right.bn) {
+			hfs_warn("hfs_binsert: unable to split node!\n");
+			tree->reserved -= reserve;
+			hfs_free(tmpkey, tmpsize);
+			return -ENOSPC;
+		}
+		binsert_nonfull(brec, belem, key, data, keysize, datasize);
+	
+		if (belem->bnr.bn == left.bn) {
+			other = right;
+			if (belem->record == 1) {
+				hfs_bnode_update_key(brec, belem, left.bn, 0);
+			}
+		} else {
+			other = left;
+		}
+
+		if (left.bn->node == tree->root->node) {
+			add_root(tree, left.bn, right.bn);
+			hfs_bnode_relse(&other);
+			goto done;
+		}
+
+		data = &node;
+		datasize = sizeof(node);
+		node = htonl(right.bn->node);
+		key = tmpkey;
+		keysize = tree->bthKeyLen;
+		memcpy(tmpkey, bnode_key(right.bn, 1), keysize+1);
+		hfs_bnode_relse(&other);
+		
+		--belem;
+	}
+
+	if (belem < brec->top) {
+		hfs_warn("hfs_binsert: Missing parent.\n");
+		tree->reserved -= reserve;
+		hfs_free(tmpkey, tmpsize);
+		return -EIO;
+	}
+
+	binsert_nonfull(brec, belem, key, data, keysize, datasize);
+
+done:
+	tree->reserved -= reserve;
+	hfs_free(tmpkey, tmpsize);
+	return 0;
+}
+
+/*================ Global functions ================*/
+
+/*
+ * hfs_binsert()
+ *
+ * Description:
+ *   This function inserts a new record into a b-tree.
+ * Input Variable(s):
+ *   struct hfs_btree *tree: pointer to the (struct hfs_btree) to insert in
+ *   struct hfs_bkey *key: pointer to the (struct hfs_bkey) to insert
+ *   void *data: pointer to the data to associate with 'key' in the b-tree
+ *   unsigned int datasize: the size of the data
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   int: 0 on success, error code on failure
+ * Preconditions:
+ *   'tree' points to a valid (struct hfs_btree)
+ *   'key' points to a valid (struct hfs_bkey)
+ *   'data' points to valid memory of length 'datasize'
+ * Postconditions:
+ *   If zero is returned then the record has been inserted in the
+ *    indicated location updating all in-core data structures and
+ *    scheduling all on-disk data structures for write-back.
+ */
+int hfs_binsert(struct hfs_btree *tree, const struct hfs_bkey *key,
+		const void *data, hfs_u16 datasize)
+{ 
+	struct hfs_brec brec;
+	struct hfs_belem *belem;
+	int err, reserve, retval;
+	hfs_u8 keysize;
+
+	if (!tree || (tree->magic != HFS_BTREE_MAGIC) || !key || !data) {
+		hfs_warn("hfs_binsert: invalid arguments.\n");
+		return -EINVAL;
+	}
+
+	if (key->KeyLen > tree->bthKeyLen) {
+		hfs_warn("hfs_binsert: oversized key\n");
+		return -EINVAL;
+	}
+
+restart:
+	if (!tree->bthNRecs) {
+		/* create the root bnode */
+		add_root(tree, NULL, NULL);
+		if (!hfs_brec_init(&brec, tree, HFS_BFIND_INSERT)) {
+			hfs_warn("hfs_binsert: failed to create root.\n");
+			return -ENOSPC;
+		}
+	} else {
+		err = hfs_bfind(&brec, tree, key, HFS_BFIND_INSERT);
+		if (err < 0) {
+			hfs_warn("hfs_binsert: hfs_brec_find failed.\n");
+			return err;
+		} else if (err == 0) {
+			hfs_brec_relse(&brec, NULL);
+			return -EEXIST;
+		}
+	}
+
+	keysize = key->KeyLen;
+	datasize = ROUND(datasize);
+	belem = brec.bottom;
+	belem->flags = 0;
+	if (bnode_freespace(belem->bnr.bn) <
+			    (sizeof(hfs_u16) + ROUND(keysize+1) + datasize)) {
+		belem->flags |= HFS_BPATH_OVERFLOW;
+	}
+	if (belem->record == 0) {
+		belem->flags |= HFS_BPATH_FIRST;
+	}
+
+	if (!belem->flags) {
+		hfs_brec_lock(&brec, brec.bottom);
+		reserve = 0;
+	} else {
+		reserve = brec.bottom - brec.top;
+		if (brec.top == 0) {
+			++reserve;
+		}
+		/* make certain we have enough nodes to proceed */
+		if ((tree->bthFree - tree->reserved) < reserve) {
+			hfs_brec_relse(&brec, NULL);
+			hfs_btree_lock(tree);
+			if ((tree->bthFree - tree->reserved) < reserve) {
+				hfs_btree_extend(tree);
+			}
+			hfs_btree_unlock(tree);
+			if ((tree->bthFree - tree->reserved) < reserve) {
+				return -ENOSPC;
+			} else {
+				goto restart;
+			}
+		}
+		tree->reserved += reserve;
+		hfs_brec_lock(&brec, NULL);
+	}
+
+	retval = binsert(&brec, key, data, keysize, datasize, reserve);
+	hfs_brec_relse(&brec, NULL);
+	if (!retval) {
+		++tree->bthNRecs;
+		tree->dirt = 1;
+	}
+	return retval;
+}
diff --git a/fs/hfs/bitmap.c b/fs/hfs/bitmap.c
new file mode 100644
index 00000000000000..c9bb850d3d9ac9
--- /dev/null
+++ b/fs/hfs/bitmap.c
@@ -0,0 +1,412 @@
+/*
+ * linux/fs/hfs/bitmap.c
+ *
+ * Copyright (C) 1996-1997  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * Based on GPLed code Copyright (C) 1995  Michael Dreher
+ *
+ * This file contains the code to modify the volume bitmap:
+ * search/set/clear bits.
+ *
+ * "XXX" in a comment is a note to myself to consider changing something.
+ *
+ * In function preconditions the term "valid" applied to a pointer to
+ * a structure means that the pointer is non-NULL and the structure it
+ * points to has all fields initialized to consistent values.
+ */
+
+#include "hfs.h"
+
+/*================ Global functions ================*/
+
+/*
+ * hfs_vbm_count_free()
+ *
+ * Description:
+ *   Count the number of consecutive cleared bits in the bitmap blocks of
+ *   the hfs MDB starting at bit number 'start'.  'mdb' had better
+ *   be locked or the indicated number of blocks may be no longer free,
+ *   when this functions returns!
+ * Input Variable(s):
+ *   struct hfs_mdb *mdb: Pointer to the hfs MDB
+ *   hfs_u16 start: bit number to start at
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   The number of consecutive cleared bits starting at bit 'start'
+ * Preconditions:
+ *   'mdb' points to a "valid" (struct hfs_mdb).
+ * Postconditions:
+ *   NONE
+ */
+hfs_u16 hfs_vbm_count_free(const struct hfs_mdb *mdb, hfs_u16 start)
+{
+	hfs_u16 block_nr;	/* index of the current bitmap block */
+	hfs_u16 bit_nr;		/* index of the current bit in block */
+	hfs_u16 count;		/* number of bits found so far */
+	hfs_u16 len;		/* number of bits found in this block */
+	hfs_u16 max_block;	/* index of last bitmap block */
+	hfs_u16 max_bits;	/* index of last bit in block */
+
+	/* is this a valid HFS MDB? */
+	if (!mdb) {
+		return 0;
+	}
+
+	block_nr = start / HFS_BM_BPB;
+	bit_nr	 = start % HFS_BM_BPB;
+	max_block = (mdb->fs_ablocks + HFS_BM_BPB - 1) / HFS_BM_BPB - 1;
+
+	count = 0;
+	while (block_nr <= max_block) {
+		if (block_nr != max_block) {
+			max_bits = HFS_BM_BPB;
+		} else {
+			max_bits = mdb->fs_ablocks % HFS_BM_BPB;
+		}
+
+		len=hfs_count_zero_bits(hfs_buffer_data(mdb->bitmap[block_nr]),
+					max_bits, bit_nr);
+		count += len;
+
+		/* see if we fell short of the end of this block */
+		if ((len + bit_nr) < max_bits) {
+			break;
+		}
+
+		++block_nr;
+		bit_nr = 0;
+	}
+	return count;
+}
+
+/*
+ * hfs_vbm_search_free()
+ *
+ * Description:
+ *   Search for 'num_bits' consecutive cleared bits in the bitmap blocks of
+ *   the hfs MDB. 'mdb' had better be locked or the returned range
+ *   may be no longer free, when this functions returns!
+ *   XXX Currently the search starts from bit 0, but it should start with
+ *   the bit number stored in 's_alloc_ptr' of the MDB.
+ * Input Variable(s):
+ *   struct hfs_mdb *mdb: Pointer to the hfs MDB
+ *   hfs_u16 *num_bits: Pointer to the number of cleared bits
+ *     to search for
+ * Output Variable(s):
+ *   hfs_u16 *num_bits: The number of consecutive clear bits of the
+ *     returned range. If the bitmap is fragmented, this will be less than
+ *     requested and it will be zero, when the disk is full.
+ * Returns:
+ *   The number of the first bit of the range of cleared bits which has been
+ *   found. When 'num_bits' is zero, this is invalid!
+ * Preconditions:
+ *   'mdb' points to a "valid" (struct hfs_mdb).
+ *   'num_bits' points to a variable of type (hfs_u16), which contains
+ *	the number of cleared bits to find.
+ * Postconditions:
+ *   'num_bits' is set to the length of the found sequence.
+ */
+hfs_u16 hfs_vbm_search_free(const struct hfs_mdb *mdb, hfs_u16 *num_bits)
+{
+	hfs_u16 block_nr; /* index of the current bitmap block */
+
+	/* position and length of current portion of a run */
+	hfs_u16 cur_pos, cur_len;
+
+	/* position and length of current complete run */
+	hfs_u16 pos=0, len=0;
+	
+	/* position and length of longest complete run */
+	hfs_u16 longest_pos=0, longest_len=0;
+
+	void *bitmap; /* contents of the current bitmap block */
+	hfs_u16 max_block; /* upper limit of outer loop */
+	hfs_u16 max_bits; /* upper limit of inner loop */
+
+	/* is this a valid HFS MDB? */
+	if (!mdb) {
+		*num_bits = 0;
+		hfs_warn("hfs_vbm_search_free: not a valid MDB\n");
+		return 0;
+	}
+	
+	/* make sure we have actual work to perform */
+	if (!(*num_bits)) {
+		return 0;
+	}
+
+	max_block = (mdb->fs_ablocks+HFS_BM_BPB-1) / HFS_BM_BPB - 1;
+	
+	/* search all bitmap blocks */
+	for (block_nr = 0; block_nr <= max_block; block_nr++) {
+		bitmap = hfs_buffer_data(mdb->bitmap[block_nr]);
+
+		if (block_nr != max_block) {
+			max_bits = HFS_BM_BPB;
+		} else {
+			max_bits = mdb->fs_ablocks % HFS_BM_BPB;
+		}
+
+		cur_pos = 0;
+		do {
+			cur_len = hfs_count_zero_bits(bitmap, max_bits,
+						      cur_pos);
+			len += cur_len;
+			if (len > longest_len) {
+				longest_pos = pos;
+				longest_len = len;
+				if (len >= *num_bits) {
+					goto search_end;
+				}
+			}
+			if ((cur_pos + cur_len) == max_bits) {
+				break; /* zeros may continue into next block */
+			}
+
+			/* find start of next run of zeros */
+			cur_pos = hfs_find_zero_bit(bitmap, max_bits,
+						    cur_pos + cur_len);
+			pos = cur_pos + HFS_BM_BPB*block_nr;
+			len = 0;
+		} while (cur_pos < max_bits);
+	}
+
+search_end:
+	*num_bits = longest_len;
+	return longest_pos;
+}
+
+
+/*
+ * hfs_set_vbm_bits()
+ *
+ * Description:
+ *   Set the requested bits in the volume bitmap of the hfs filesystem
+ * Input Variable(s):
+ *   struct hfs_mdb *mdb: Pointer to the hfs MDB
+ *   hfs_u16 start: The offset of the first bit
+ *   hfs_u16 count: The number of bits
+ * Output Variable(s):
+ *   None
+ * Returns:
+ *    0: no error
+ *   -1: One of the bits was already set.  This is a strange
+ *	 error and when it happens, the filesystem must be repaired!
+ *   -2: One or more of the bits are out of range of the bitmap.
+ *   -3: The 's_magic' field of the MDB does not match
+ * Preconditions:
+ *   'mdb' points to a "valid" (struct hfs_mdb).
+ * Postconditions:
+ *   Starting with bit number 'start', 'count' bits in the volume bitmap
+ *   are set. The affected bitmap blocks are marked "dirty", the free
+ *   block count of the MDB is updated and the MDB is marked dirty.
+ */
+int hfs_set_vbm_bits(struct hfs_mdb *mdb, hfs_u16 start, hfs_u16 count)
+{
+	hfs_u16 block_nr;	/* index of the current bitmap block */
+	hfs_u16 u32_nr;		/* index of the current hfs_u32 in block */
+	hfs_u16 bit_nr;		/* index of the current bit in hfs_u32 */
+	hfs_u16 left = count;	/* number of bits left to be set */
+	hfs_u32 *bitmap;	/* the current bitmap block's contents */
+
+	/* is this a valid HFS MDB? */
+	if (!mdb) {
+		return -3;
+	}
+
+	/* is there any actual work to be done? */
+	if (!count) {
+		return 0;
+	}
+
+	/* are all of the bits in range? */
+	if ((start + count) > mdb->fs_ablocks) {
+		return -2;
+	}
+
+	block_nr = start / HFS_BM_BPB;
+	u32_nr = (start % HFS_BM_BPB) / 32;
+	bit_nr = start % 32;
+
+	/* bitmap is always on a 32-bit boundary */
+	bitmap = (hfs_u32 *)hfs_buffer_data(mdb->bitmap[block_nr]);
+
+	/* do any partial hfs_u32 at the start */
+	if (bit_nr != 0) {
+		while ((bit_nr < 32) && left) {
+			if (hfs_set_bit(bit_nr, bitmap + u32_nr)) {
+				hfs_buffer_dirty(mdb->bitmap[block_nr]);
+				return -1;
+			}
+			++bit_nr;
+			--left;
+		}
+		bit_nr=0;
+
+		/* advance u32_nr and check for end of this block */
+		if (++u32_nr > 127) {
+			u32_nr = 0;
+			hfs_buffer_dirty(mdb->bitmap[block_nr]);
+			++block_nr;
+			/* bitmap is always on a 32-bit boundary */
+			bitmap = (hfs_u32 *)
+					hfs_buffer_data(mdb->bitmap[block_nr]);
+		}
+	}
+
+	/* do full hfs_u32s */
+	while (left > 31) {
+		if (bitmap[u32_nr] != ((hfs_u32)0)) {
+			hfs_buffer_dirty(mdb->bitmap[block_nr]);
+			return -1;
+		}
+		bitmap[u32_nr] = ~((hfs_u32)0);
+		left -= 32;
+
+		/* advance u32_nr and check for end of this block */
+		if (++u32_nr > 127) {
+			u32_nr = 0;
+			hfs_buffer_dirty(mdb->bitmap[block_nr]);
+			++block_nr;
+			/* bitmap is always on a 32-bit boundary */
+			bitmap = (hfs_u32 *)
+					hfs_buffer_data(mdb->bitmap[block_nr]);
+		}
+	}
+
+			
+	/* do any partial hfs_u32 at end */
+	while (left) {
+		if (hfs_set_bit(bit_nr, bitmap + u32_nr)) {
+			hfs_buffer_dirty(mdb->bitmap[block_nr]);
+			return -1;
+		}
+		++bit_nr;
+		--left;
+	}
+
+	hfs_buffer_dirty(mdb->bitmap[block_nr]);
+	mdb->free_ablocks -= count;
+
+	/* successful completion */
+	hfs_mdb_dirty(mdb->sys_mdb);
+	return 0;
+}
+
+/*
+ * hfs_clear_vbm_bits()
+ *
+ * Description:
+ *   Clear the requested bits in the volume bitmap of the hfs filesystem
+ * Input Variable(s):
+ *   struct hfs_mdb *mdb: Pointer to the hfs MDB
+ *   hfs_u16 start: The offset of the first bit
+ *   hfs_u16 count: The number of bits
+ * Output Variable(s):
+ *   None
+ * Returns:
+ *    0: no error
+ *   -1: One of the bits was already clear.  This is a strange
+ *	 error and when it happens, the filesystem must be repaired!
+ *   -2: One or more of the bits are out of range of the bitmap.
+ *   -3: The 's_magic' field of the MDB does not match
+ * Preconditions:
+ *   'mdb' points to a "valid" (struct hfs_mdb).
+ * Postconditions:
+ *   Starting with bit number 'start', 'count' bits in the volume bitmap
+ *   are cleared. The affected bitmap blocks are marked "dirty", the free
+ *   block count of the MDB is updated and the MDB is marked dirty.
+ */
+int hfs_clear_vbm_bits(struct hfs_mdb *mdb, hfs_u16 start, hfs_u16 count)
+{
+	hfs_u16 block_nr;	/* index of the current bitmap block */
+	hfs_u16 u32_nr;		/* index of the current hfs_u32 in block */
+	hfs_u16 bit_nr;		/* index of the current bit in hfs_u32 */
+	hfs_u16 left = count;	/* number of bits left to be set */
+	hfs_u32 *bitmap;	/* the current bitmap block's contents */
+
+	/* is this a valid HFS MDB? */
+	if (!mdb) {
+		return -3;
+	}
+
+	/* is there any actual work to be done? */
+	if (!count) {
+		return 0;
+	}
+
+	/* are all of the bits in range? */
+	if ((start + count) > mdb->fs_ablocks) {
+		return -2;
+	}
+
+	block_nr = start / HFS_BM_BPB;
+	u32_nr = (start % HFS_BM_BPB) / 32;
+	bit_nr = start % 32;
+
+	/* bitmap is always on a 32-bit boundary */
+	bitmap = (hfs_u32 *)hfs_buffer_data(mdb->bitmap[block_nr]);
+
+	/* do any partial hfs_u32 at the start */
+	if (bit_nr != 0) {
+		while ((bit_nr < 32) && left) {
+			if (!hfs_clear_bit(bit_nr, bitmap + u32_nr)) {
+				hfs_buffer_dirty(mdb->bitmap[block_nr]);
+				return -1;
+			}
+			++bit_nr;
+			--left;
+		}
+		bit_nr=0;
+
+		/* advance u32_nr and check for end of this block */
+		if (++u32_nr > 127) {
+			u32_nr = 0;
+			hfs_buffer_dirty(mdb->bitmap[block_nr]);
+			++block_nr;
+			/* bitmap is always on a 32-bit boundary */
+			bitmap = (hfs_u32 *)
+					hfs_buffer_data(mdb->bitmap[block_nr]);
+		}
+	}
+
+	/* do full hfs_u32s */
+	while (left > 31) {
+		if (bitmap[u32_nr] != ~((hfs_u32)0)) {
+			hfs_buffer_dirty(mdb->bitmap[block_nr]);
+			return -1;
+		}
+		bitmap[u32_nr] = ((hfs_u32)0);
+		left -= 32;
+
+		/* advance u32_nr and check for end of this block */
+		if (++u32_nr > 127) {
+			u32_nr = 0;
+			hfs_buffer_dirty(mdb->bitmap[block_nr]);
+			++block_nr;
+			/* bitmap is always on a 32-bit boundary */
+			bitmap = (hfs_u32 *)
+					hfs_buffer_data(mdb->bitmap[block_nr]);
+		}
+	}
+
+			
+	/* do any partial hfs_u32 at end */
+	while (left) {
+		if (!hfs_clear_bit(bit_nr, bitmap + u32_nr)) {
+			hfs_buffer_dirty(mdb->bitmap[block_nr]);
+			return -1;
+		}
+		++bit_nr;
+		--left;
+	}
+
+	hfs_buffer_dirty(mdb->bitmap[block_nr]);
+	mdb->free_ablocks += count;
+
+	/* successful completion */
+	hfs_mdb_dirty(mdb->sys_mdb);
+	return 0;
+}
diff --git a/fs/hfs/bitops.c b/fs/hfs/bitops.c
new file mode 100644
index 00000000000000..e2cb38877e76c2
--- /dev/null
+++ b/fs/hfs/bitops.c
@@ -0,0 +1,124 @@
+/*
+ * linux/fs/hfs/bitops.c
+ *
+ * Copyright (C) 1996  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * This file contains functions to handle bitmaps in "left-to-right"
+ * bit-order such that the MSB of a 32-bit big-endian word is bit 0.
+ * (This corresponds to bit 7 of a 32-bit little-endian word.)
+ *
+ * I have tested and confirmed that the results are identical on the
+ * Intel x86, PowerPC and DEC Alpha processors.
+ *
+ * "XXX" in a comment is a note to myself to consider changing something.
+ */
+
+#include "hfs.h"
+
+/*================ Global functions ================*/
+
+/*
+ * hfs_find_zero_bit()
+ *
+ * Description:
+ *  Given a block of memory, its length in bits, and a starting bit number,
+ *  determine the number of the first zero bits (in left-to-right ordering)
+ *  in that range.
+ *
+ *  Returns >= 'size' if no zero bits are found in the range.
+ *
+ *  Accesses memory in 32-bit aligned chunks of 32-bits and thus
+ *  may read beyond the 'size'th bit.
+ */
+hfs_u32 hfs_find_zero_bit(const hfs_u32 *start, hfs_u32 size, hfs_u32 offset)
+{
+	const hfs_u32 *end   = start + ((size + 31) >> 5);
+	const hfs_u32 *curr  = start + (offset >> 5);
+	int bit = offset % 32;
+	
+	if (offset < size) {
+		/* scan the first partial hfs_u32 for zero bits */
+		if (bit != 0) {
+			do {
+				if (!hfs_test_bit(bit, curr)) {
+					goto done;
+				}
+				++bit;
+			} while (bit < 32);
+			bit = 0;
+			++curr;
+		}
+	
+		/* scan complete hfs_u32s for the first zero bit */
+		while (curr < end) {
+			if (*curr == ~((hfs_u32)0)) {
+				++curr;
+			} else {
+				while (hfs_test_bit(bit, curr)) {
+					++bit;
+				}
+				break;
+			}
+		}
+
+done:
+		bit |= (curr - start) << 5;
+		return bit;
+	} else {
+		return size;
+	}
+}
+
+/*
+ * hfs_count_zero_bits()
+ *
+ * Description:
+ *  Given a block of memory, its length in bits, and a starting bit number,
+ *  determine the number of consecutive zero bits (in left-to-right ordering)
+ *  in that range.
+ *
+ *  Accesses memory in 32-bit aligned chunks of 32-bits and thus
+ *  may read beyond the 'size'th bit.
+ */
+hfs_u32 hfs_count_zero_bits(const hfs_u32 *start, hfs_u32 size, hfs_u32 offset)
+{
+	const hfs_u32 *end   = start + ((size + 31) >> 5);
+	const hfs_u32 *curr  = start + (offset >> 5);
+	int bit = offset % 32;
+
+	if (offset < size) {
+		/* scan the first partial hfs_u32 for one bits */
+		if (bit != 0) {
+			do {
+				if (hfs_test_bit(bit, curr)) {
+					goto done;
+				}
+				++bit;
+			} while (bit < 32);
+			bit = 0;
+			++curr;
+		}
+	
+		/* scan complete hfs_u32s for the first one bit */
+		while (curr < end) {
+			if (*curr == ((hfs_u32)0)) {
+				++curr;
+			} else {
+				while (!hfs_test_bit(bit, curr)) {
+					++bit;
+				}
+				break;
+			}
+		}
+
+done:
+		bit |= (curr - start) << 5;
+		if (bit > size) {
+			bit = size;
+		}
+		return bit - offset;
+	} else {
+		return 0;
+	}
+}
diff --git a/fs/hfs/bnode.c b/fs/hfs/bnode.c
new file mode 100644
index 00000000000000..d7f0566e3cc06e
--- /dev/null
+++ b/fs/hfs/bnode.c
@@ -0,0 +1,544 @@
+/*
+ * linux/fs/hfs/bnode.c
+ *
+ * Copyright (C) 1995-1997  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * This file contains the code to access nodes in the B-tree structure.
+ *
+ * "XXX" in a comment is a note to myself to consider changing something.
+ *
+ * In function preconditions the term "valid" applied to a pointer to
+ * a structure means that the pointer is non-NULL and the structure it
+ * points to has all fields initialized to consistent values.
+ *
+ * The code in this file initializes some structures which contain
+ * pointers by calling memset(&foo, 0, sizeof(foo)).
+ * This produces the desired behavior only due to the non-ANSI
+ * assumption that the machine representation of NULL is all zeros.
+ */
+
+#include "hfs_btree.h"
+
+/*================ File-local variables ================*/
+ 
+/* debugging statistics */
+#if defined(DEBUG_BNODES) || defined(DEBUG_ALL)
+int bnode_count = 0;
+#endif
+
+/*================ Global functions ================*/
+
+/*
+ * hfs_bnode_delete()
+ *
+ * Description:
+ *   This function is called to remove a bnode from the cache and
+ *   release its resources.
+ * Input Variable(s):
+ *   struct hfs_bnode *bn: Pointer to the (struct hfs_bnode) to be
+ *   removed from the cache.
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   void
+ * Preconditions:
+ *   'bn' points to a "valid" (struct hfs_bnode).
+ * Postconditions:
+ *   The node 'bn' is removed from the cache, its memory freed and its
+ *   buffer (if any) released.
+ */
+void hfs_bnode_delete(struct hfs_bnode *bn)
+{
+#if defined(DEBUG_BNODES) || defined(DEBUG_ALL)
+	--bnode_count;
+#endif
+	/* join neighbors */
+	if (bn->next) {
+		bn->next->prev = bn->prev;
+	}
+	if (bn->prev) {
+		bn->prev->next = bn->next;
+	}
+	/* fix cache slot if necessary */
+	if (bhash(bn->tree, bn->node) == bn) {
+		bhash(bn->tree, bn->node) = bn->next;
+	}
+	/* release resources */
+	hfs_buffer_put(bn->buf); /* safe: checks for NULL argument */
+	HFS_DELETE(bn);
+}
+
+
+/*
+ * hfs_bnode_read()
+ *
+ * Description: 
+ *   This function creates a (struct hfs_bnode) and, if appropriate,
+ *   inserts it in the cache.
+ * Input Variable(s):
+ *   struct hfs_bnode *bnode: pointer to the new bnode.
+ *   struct hfs_btree *tree: pointer to the (struct hfs_btree)
+ *    containing the desired node
+ *   hfs_u32 node: the number of the desired node.
+ *   int sticky: the value to assign to the 'sticky' field.
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   (struct hfs_bnode *) pointing to the newly created bnode or NULL.
+ * Preconditions:
+ *   'bnode' points to a "valid" (struct hfs_bnode).
+ *   'tree' points to a "valid" (struct hfs_btree).
+ *   'node' is an existing node number in the B-tree.
+ * Postconditions:
+ *   The following are true of 'bnode' upon return:
+ *    The 'magic' field is set to indicate a valid (struct hfs_bnode). 
+ *    The 'sticky', 'tree' and 'node' fields are initialized to the
+ *    values of the of the corresponding arguments.
+ *    If the 'sticky' argument is zero then the fields 'prev' and
+ *    'next' are initialized by inserting the (struct hfs_bnode) in the
+ *    linked list of the appropriate cache slot; otherwise they are
+ *    initialized to NULL.
+ *    The data is read from disk (or buffer cache) and the 'buf' field
+ *    points to the buffer for that data.
+ *    If no other processes tried to access this node while this
+ *    process was waiting on disk I/O (if necessary) then the
+ *    remaining fields are zero ('count', 'resrv', 'lock') or NULL
+ *    ('wqueue', 'rqueue') corresponding to no accesses.
+ *    If there were access attempts during I/O then they were blocked
+ *    until the I/O was complete, and the fields 'count', 'resrv',
+ *    'lock', 'wqueue' and 'rqueue' reflect the results of unblocking
+ *    those processes when the I/O was completed.
+ */
+void hfs_bnode_read(struct hfs_bnode *bnode, struct hfs_btree *tree,
+		    hfs_u32 node, int sticky)
+{
+	struct NodeDescriptor *nd;
+	int block, lcv;
+	hfs_u16 curr, prev, limit;
+
+	/* Initialize the structure */
+	memset(bnode, 0, sizeof(*bnode));
+	bnode->magic = HFS_BNODE_MAGIC;
+	bnode->tree = tree;
+	bnode->node = node;
+	bnode->sticky = sticky;
+	hfs_init_waitqueue(&bnode->rqueue);
+	hfs_init_waitqueue(&bnode->wqueue);
+
+	if (sticky == HFS_NOT_STICKY) {
+		/* Insert it in the cache if appropriate */
+		if ((bnode->next = bhash(tree, node))) {
+			bnode->next->prev = bnode;
+		}
+		bhash(tree, node) = bnode;
+	}
+
+	/* Make the bnode look like it is being
+	   modified so other processes will wait for
+	   the I/O to complete */
+	bnode->count = bnode->resrv = bnode->lock = 1;
+
+	/* Read in the node, possibly causing a schedule()
+	   call.  If the I/O fails then emit a warning.	 Each
+	   process that was waiting on the bnode (including
+	   the current one) will notice the failure and
+	   hfs_bnode_relse() the node.	The last hfs_bnode_relse()
+	   will call hfs_bnode_delete() and discard the bnode.	*/
+
+	block = hfs_extent_map(&tree->entry.u.file.data_fork, node, 0);
+	if (!block) {
+		hfs_warn("hfs_bnode_read: bad node number 0x%08x\n", node);
+	} else if (hfs_buffer_ok(bnode->buf =
+				 hfs_buffer_get(tree->sys_mdb, block, 1))) {
+		/* read in the NodeDescriptor */
+		nd = (struct NodeDescriptor *)hfs_buffer_data(bnode->buf);
+		bnode->ndFLink    = hfs_get_hl(nd->ndFLink);
+		bnode->ndBLink    = hfs_get_hl(nd->ndBLink);
+		bnode->ndType     = nd->ndType;
+		bnode->ndNHeight  = nd->ndNHeight;
+		bnode->ndNRecs    = hfs_get_hs(nd->ndNRecs);
+
+		/* verify the integrity of the node */
+		prev = sizeof(struct NodeDescriptor);
+		limit = HFS_SECTOR_SIZE - sizeof(hfs_u16)*(bnode->ndNRecs + 1);
+		for (lcv=1; lcv <= (bnode->ndNRecs + 1); ++lcv) {
+			curr = hfs_get_hs(RECTBL(bnode, lcv));
+			if ((curr < prev) || (curr > limit)) {
+				hfs_warn("hfs_bnode_read: corrupt node "
+					 "number 0x%08x\n", node);
+				hfs_buffer_put(bnode->buf);
+				bnode->buf = NULL;
+				break;
+			}
+			prev = curr;
+		}
+	}
+
+	/* Undo our fakery with the lock state and
+	   hfs_wake_up() anyone who we managed to trick */
+	--bnode->count;
+	bnode->resrv = bnode->lock = 0;
+	hfs_wake_up(&bnode->rqueue);
+}
+
+/*
+ * hfs_bnode_lock()
+ *
+ * Description:
+ *   This function does the locking of a bnode.
+ * Input Variable(s):
+ *   struct hfs_bnode *bn: pointer to the (struct hfs_bnode) to lock
+ *   int lock_type: the type of lock desired
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   void
+ * Preconditions:
+ *   'bn' points to a "valid" (struct hfs_bnode).
+ *   'lock_type' is a valid hfs_lock_t
+ * Postconditions:
+ *   The 'count' field of 'bn' is incremented by one.  If 'lock_type'
+ *   is HFS_LOCK_RESRV the 'resrv' field is also incremented.
+ */
+void hfs_bnode_lock(struct hfs_bnode_ref *bnr, int lock_type)
+{
+	struct hfs_bnode *bn = bnr->bn;
+
+	if ((lock_type == bnr->lock_type) || !bn) {
+		return;
+	}
+
+	if (bnr->lock_type == HFS_LOCK_WRITE) {
+		hfs_bnode_commit(bnr->bn);
+	}
+
+	switch (lock_type) {
+	default:
+		goto bail;
+		break;
+
+	case HFS_LOCK_READ:
+		/* We may not obtain read access if any process is
+		   currently modifying or waiting to modify this node.
+		   If we can't obtain access we wait on the rqueue
+		   wait queue to be woken up by the modifying process
+		   when it relinquishes its lock. */
+		switch (bnr->lock_type) {
+		default:
+			goto bail;
+			break;
+
+		case HFS_LOCK_NONE:
+			while (bn->lock || waitqueue_active(&bn->wqueue)) {
+				hfs_sleep_on(&bn->rqueue);
+			}
+			++bn->count;
+			break;
+		}
+		break;
+			
+	case HFS_LOCK_RESRV:
+		/* We may not obtain a reservation (read access with
+		   an option to write later), if any process currently
+		   holds a reservation on this node.  That includes
+		   any process which is currently modifying this node.
+		   If we can't obtain access, then we wait on the
+		   rqueue wait queue to e woken up by the
+		   reservation-holder when it calls hfs_bnode_relse. */
+		switch (bnr->lock_type) {
+		default:
+			goto bail;
+			break;
+
+		case HFS_LOCK_NONE:
+			while (bn->resrv) {
+				hfs_sleep_on(&bn->rqueue);
+			}
+			bn->resrv = 1;
+			++bn->count;
+			break;
+
+		case HFS_LOCK_WRITE:
+			bn->lock = 0;
+			hfs_wake_up(&bn->rqueue);
+			break;
+		}
+		break;
+		
+	case HFS_LOCK_WRITE:
+		switch (bnr->lock_type) {
+		default:
+			goto bail;
+			break;
+
+		case HFS_LOCK_NONE:
+			while (bn->resrv) {
+				hfs_sleep_on(&bn->rqueue);
+			}
+			bn->resrv = 1;
+			++bn->count;
+		case HFS_LOCK_RESRV:
+			while (bn->count > 1) {
+				hfs_sleep_on(&bn->wqueue);
+			}
+			bn->lock = 1;
+			break;
+		}
+		break;
+
+	case HFS_LOCK_NONE:
+		switch (bnr->lock_type) {
+		default:
+			goto bail;
+			break;
+
+		case HFS_LOCK_READ:
+			/* This process was reading this node.	If
+			   there is now exactly one other process using
+			   the node then hfs_wake_up() a (potentially
+			   nonexistent) waiting process.  Note that I
+			   refer to "a" process since the reservation
+			   system ensures that only one process can
+			   get itself on the wait queue.  */
+			if (bn->count == 2) {
+				hfs_wake_up(&bn->wqueue);
+			}
+			break;
+
+		case HFS_LOCK_WRITE:
+			/* This process was modifying this node.
+			   Unlock the node and fall-through to the
+			   HFS_LOCK_RESRV case, since a 'reservation'
+			   is a prerequisite for HFS_LOCK_WRITE.  */
+			bn->lock = 0;
+		case HFS_LOCK_RESRV:
+			/* This process had placed a 'reservation' on
+			   this node, indicating an intention to
+			   possibly modify the node.  We can get to
+			   this spot directly (if the 'reservation'
+			   not converted to a HFS_LOCK_WRITE), or by
+			   falling through from the above case if the
+			   reservation was converted.
+			   Since HFS_LOCK_RESRV and HFS_LOCK_WRITE
+			   both block processes that want access
+			   (HFS_LOCK_RESRV blocks other processes that
+			   want reservations but allow HFS_LOCK_READ
+			   accesses, while HFS_LOCK_WRITE must have
+			   exclusive access and thus blocks both
+			   types) we hfs_wake_up() any processes that
+			   might be waiting for access.	 If multiple
+			   processes are waiting for a reservation
+			   then the magic of process scheduling will
+			   settle the dispute. */
+			bn->resrv = 0;
+			hfs_wake_up(&bn->rqueue);
+			break;
+		}
+		--bn->count;
+		break;
+	}
+	bnr->lock_type = lock_type;
+	return;
+
+bail:
+	hfs_warn("hfs_bnode_lock: invalid lock change: %d->%d.\n",
+		bnr->lock_type, lock_type);
+	return;
+}
+
+/*
+ * hfs_bnode_relse()
+ *
+ * Description:
+ *   This function is called when a process is done using a bnode.  If
+ *   the proper conditions are met then we call hfs_bnode_delete() to remove
+ *   it from the cache.	 If it is not deleted then we update its state
+ *   to reflect one less process using it.
+ * Input Variable(s):
+ *   struct hfs_bnode *bn: pointer to the (struct hfs_bnode) to release.
+ *   int lock_type: The type of lock held by the process releasing this node.
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   void
+ * Preconditions:
+ *   'bn' is NULL or points to a "valid" (struct hfs_bnode).
+ * Postconditions:
+ *   If 'bn' meets the appropriate conditions (see below) then it is
+ *   kept in the cache and all fields are set to consistent values
+ *   which reflect one less process using the node than upon entry.
+ *   If 'bn' does not meet the conditions then it is deleted (see
+ *   hfs_bnode_delete() for postconditions).
+ *   In either case, if 'lock_type' is HFS_LOCK_WRITE
+ *   then the corresponding buffer is dirtied.
+ */
+void hfs_bnode_relse(struct hfs_bnode_ref *bnr)
+{
+	struct hfs_bnode *bn;
+
+	if (!bnr || !(bn = bnr->bn)) {
+		return;
+	}
+
+	/* We update the lock state of the node if it is still in use
+	   or if it is "sticky" (such as the B-tree head and root).
+	   Otherwise we just delete it.	 */
+	if ((bn->count > 1) || (waitqueue_active(&bn->rqueue)) || (bn->sticky != HFS_NOT_STICKY)) {
+		hfs_bnode_lock(bnr, HFS_LOCK_NONE);
+	} else {
+		/* dirty buffer if we (might) have modified it */
+		if (bnr->lock_type == HFS_LOCK_WRITE) {
+			hfs_bnode_commit(bn);
+		}
+		hfs_bnode_delete(bn);
+		bnr->lock_type = HFS_LOCK_NONE;
+	}
+	bnr->bn = NULL;
+}
+
+/*
+ * hfs_bnode_find()
+ *
+ * Description:
+ *   This function is called to obtain a bnode.  The cache is
+ *   searched for the node.  If it not found there it is added to
+ *   the cache by hfs_bnode_read().  There are two special cases node=0
+ *   (the header node) and node='tree'->bthRoot (the root node), in
+ *   which the nodes are obtained from fields of 'tree' without
+ *   consulting or modifying the cache.
+ * Input Variable(s):
+ *   struct hfs_tree *tree: pointer to the (struct hfs_btree) from
+ *    which to get a node.
+ *   int node: the node number to get from 'tree'.
+ *   int lock_type: The kind of access (HFS_LOCK_READ, or
+ *    HFS_LOCK_RESRV) to obtain to the node
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   (struct hfs_bnode_ref) Reference to the requested node.
+ * Preconditions:
+ *   'tree' points to a "valid" (struct hfs_btree).
+ * Postconditions:
+ *   If 'node' refers to a valid node in 'tree' and 'lock_type' has
+ *   one of the values listed above and no I/O errors occur then the
+ *   value returned refers to a valid (struct hfs_bnode) corresponding
+ *   to the requested node with the requested access type.  The node
+ *   is also added to the cache if not previously present and not the
+ *   root or header.
+ *   If the conditions given above are not met, the bnode in the
+ *   returned reference is NULL.
+ */
+struct hfs_bnode_ref hfs_bnode_find(struct hfs_btree *tree,
+				    hfs_u32 node, int lock_type)
+{
+	struct hfs_bnode *bn;
+	struct hfs_bnode *empty = NULL;
+	struct hfs_bnode_ref bnr;
+
+	bnr.lock_type = HFS_LOCK_NONE;
+	bnr.bn = NULL;
+
+#if defined(DEBUG_BNODES) || defined(DEBUG_ALL)
+	hfs_warn("hfs_bnode_find: %c %d:%d\n",
+		 lock_type==HFS_LOCK_READ?'R':
+			(lock_type==HFS_LOCK_RESRV?'V':'W'),
+		 (int)ntohl(tree->entry.cnid), node);
+#endif
+
+	/* check special cases */
+	if (!node) {
+		bn = &tree->head;
+		goto return_it;
+	} else if (node == tree->bthRoot) {
+		bn = tree->root;
+		goto return_it;
+	} 
+
+restart:
+	/* look for the node in the cache. */
+	bn = bhash(tree, node);
+	while (bn && (bn->magic == HFS_BNODE_MAGIC)) {
+		if (bn->node == node) {
+			goto found_it;
+		}
+		bn = bn->next;
+	}
+
+	if (!empty) {
+#if defined(DEBUG_BNODES) || defined(DEBUG_ALL)
+		++bnode_count;
+#endif
+		if (HFS_NEW(empty)) {
+			goto restart;
+		}
+		return bnr;
+	}
+	bn = empty;
+	hfs_bnode_read(bn, tree, node, HFS_NOT_STICKY);
+	goto return_it;
+
+found_it:
+	/* check validity */
+	if (bn->magic != HFS_BNODE_MAGIC) {
+		/* If we find a corrupt bnode then we return
+		   NULL.  However, we don't try to remove it
+		   from the cache or release its resources
+		   since we have no idea what kind of trouble
+		   we could get into that way. */
+		hfs_warn("hfs_bnode_find: bnode cache is corrupt.\n");
+		return bnr;
+	} 
+	if (empty) {
+#if defined(DEBUG_BNODES) || defined(DEBUG_ALL)
+		--bnode_count;
+#endif
+		HFS_DELETE(empty);
+	}
+	
+return_it:
+	/* Wait our turn */
+	bnr.bn = bn;
+	hfs_bnode_lock(&bnr, lock_type);
+
+	/* Check for failure to read the node from disk */
+	if (!hfs_buffer_ok(bn->buf)) {
+		hfs_bnode_relse(&bnr);
+	}
+
+#if defined(DEBUG_BNODES) || defined(DEBUG_ALL)
+	if (!bnr.bn) {
+		hfs_warn("hfs_bnode_find: failed\n");
+	} else {
+		hfs_warn("hfs_bnode_find: use %d(%d) lvl %d [%d]\n", bn->count,
+			 bn->buf->b_count, bn->ndNHeight, bnode_count);
+		hfs_warn("hfs_bnode_find: blnk %u flnk %u recs %u\n", 
+			 bn->ndBLink, bn->ndFLink, bn->ndNRecs);
+	}
+#endif
+
+	return bnr;
+}
+
+/*
+ * hfs_bnode_commit()
+ *
+ * Called to write a possibly dirty bnode back to disk.
+ */
+void hfs_bnode_commit(struct hfs_bnode *bn)
+{
+	if (hfs_buffer_ok(bn->buf)) {
+		struct NodeDescriptor *nd;
+		nd = (struct NodeDescriptor *)hfs_buffer_data(bn->buf);
+
+		hfs_put_hl(bn->ndFLink, nd->ndFLink);
+		hfs_put_hl(bn->ndBLink, nd->ndBLink);
+		nd->ndType    = bn->ndType;
+		nd->ndNHeight = bn->ndNHeight;
+		hfs_put_hs(bn->ndNRecs, nd->ndNRecs);
+		hfs_buffer_dirty(bn->buf);
+
+		/* increment write count */
+		hfs_mdb_dirty(bn->tree->sys_mdb);
+	}
+}
diff --git a/fs/hfs/brec.c b/fs/hfs/brec.c
new file mode 100644
index 00000000000000..4db76fc4f62cb7
--- /dev/null
+++ b/fs/hfs/brec.c
@@ -0,0 +1,239 @@
+/*
+ * linux/fs/hfs/brec.c
+ *
+ * Copyright (C) 1995-1997  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * This file contains the code to access records in a btree.
+ *
+ * "XXX" in a comment is a note to myself to consider changing something.
+ *
+ * In function preconditions the term "valid" applied to a pointer to
+ * a structure means that the pointer is non-NULL and the structure it
+ * points to has all fields initialized to consistent values.
+ */
+
+#include "hfs_btree.h"
+
+/*================ File-local functions ================*/
+
+/*
+ * first()
+ *
+ * returns HFS_BPATH_FIRST if elem->record == 1, 0 otherwise
+ */
+static inline int first(const struct hfs_belem *elem)
+{
+	return (elem->record == 1) ? HFS_BPATH_FIRST : 0;
+}
+
+/*
+ * overflow()
+ *
+ * return HFS_BPATH_OVERFLOW if the node has no room for an 
+ * additional pointer record, 0 otherwise.
+ */
+static inline int overflow(const struct hfs_btree *tree,
+			   const struct hfs_bnode *bnode)
+{
+	/* there is some algebra involved in getting this form */
+	return ((HFS_SECTOR_SIZE - sizeof(hfs_u32)) <
+		 (bnode_end(bnode) + (2+bnode->ndNRecs)*sizeof(hfs_u16) +
+		  ROUND(tree->bthKeyLen+1))) ?  HFS_BPATH_OVERFLOW : 0;
+}
+
+/*
+ * underflow()
+ *
+ * return HFS_BPATH_UNDERFLOW if the node will be less that 1/2 full
+ * upon removal of a pointer record, 0 otherwise.
+ */
+static inline int underflow(const struct hfs_btree *tree,
+			    const struct hfs_bnode *bnode)
+{
+	return ((bnode->ndNRecs * sizeof(hfs_u16) +
+		 bnode_offset(bnode, bnode->ndNRecs)) <
+		(HFS_SECTOR_SIZE - sizeof(struct NodeDescriptor))/2) ?
+		HFS_BPATH_UNDERFLOW : 0;
+}
+
+/*================ Global functions ================*/
+
+/*
+ * hfs_brec_next()
+ *
+ * Description:
+ *   Obtain access to a child of an internal node in a B-tree.
+ * Input Variable(s):
+ *   struct hfs_brec *brec: pointer to the (struct hfs_brec) to
+ *    add an element to.
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   struct hfs_belem *: pointer to the new path element or NULL
+ * Preconditions:
+ *   'brec' points to a "valid" (struct hfs_brec), the last element of
+ *   which corresponds to a record in a bnode of type ndIndxNode and the
+ *   'record' field indicates the index record for the desired child.
+ * Postconditions:
+ *   If the call to hfs_bnode_find() fails then 'brec' is released
+ *   and a NULL is returned.
+ *   Otherwise:
+ *    Any ancestors in 'brec' that are not needed (as determined by the
+ *     'keep_flags' field of 'brec) are released from 'brec'.
+ *    A new element is added to 'brec' corresponding to the desired
+ *     child.
+ *    The child is obtained with the same 'lock_type' field as its
+ *     parent.
+ *    The 'record' field is initialized to the last record.
+ *    A pointer to the new path element is returned.
+ */
+struct hfs_belem *hfs_brec_next(struct hfs_brec *brec)
+{
+	struct hfs_belem *elem = brec->bottom;
+	hfs_u32 node;
+	int lock_type;
+
+	/* release unneeded ancestors */
+	elem->flags = first(elem) |
+		      overflow(brec->tree, elem->bnr.bn) |
+		      underflow(brec->tree, elem->bnr.bn);
+	if (!(brec->keep_flags & elem->flags)) {
+		hfs_brec_relse(brec, brec->bottom-1);
+	} else if ((brec->bottom-2 >= brec->top) &&
+		   !(elem->flags & (elem-1)->flags)) {
+		hfs_brec_relse(brec, brec->bottom-2);
+	}
+
+	node = hfs_get_hl(belem_record(elem));
+	lock_type = elem->bnr.lock_type;
+
+	if (!node || hfs_bnode_in_brec(node, brec)) {
+		hfs_warn("hfs_bfind: corrupt btree\n");
+		hfs_brec_relse(brec, NULL);
+		return NULL;
+	}
+
+	++elem;
+	++brec->bottom;
+
+	elem->bnr = hfs_bnode_find(brec->tree, node, lock_type);
+	if (!elem->bnr.bn) {
+		hfs_brec_relse(brec, NULL);
+		return NULL;
+	}
+	elem->record = elem->bnr.bn->ndNRecs;
+
+	return elem;
+}
+
+/*
+ * hfs_brec_lock()
+ *
+ * Description:
+ *   This function obtains HFS_LOCK_WRITE access to the bnode
+ *   containing this hfs_brec.	All descendents in the path from this
+ *   record to the leaf are given HFS_LOCK_WRITE access and all
+ *   ancestors in the path from the root to here are released.
+ * Input Variable(s):
+ *   struct hfs_brec *brec: pointer to the brec to obtain
+ *    HFS_LOCK_WRITE access to some of the nodes of.
+ *   struct hfs_belem *elem: the first node to lock or NULL for all
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   void
+ * Preconditions:
+ *   'brec' points to a "valid" (struct hfs_brec)
+ * Postconditions: 
+ *   All nodes between the indicated node and the beginning of the path
+ *    are released.  hfs_bnode_lock() is called in turn on each node
+ *    from the indicated node to the leaf node of the path, with a
+ *    lock_type argument of HFS_LOCK_WRITE.  If one of those calls
+ *    results in deadlock, then this function will never return.
+ */
+void hfs_brec_lock(struct hfs_brec *brec, struct hfs_belem *elem) 
+{
+	if (!elem) {
+		elem = brec->top;
+	} else if (elem > brec->top) {
+		hfs_brec_relse(brec, elem-1);
+	}
+
+	while (elem <= brec->bottom) {
+		hfs_bnode_lock(&elem->bnr, HFS_LOCK_WRITE);
+		++elem;
+	}
+}
+
+/*
+ * hfs_brec_init()
+ *
+ * Description:
+ *   Obtain access to the root node of a B-tree.
+ *   Note that this first must obtain access to the header node.
+ * Input Variable(s):
+ *   struct hfs_brec *brec: pointer to the (struct hfs_brec) to
+ *    initialize
+ *   struct hfs_btree *btree: pointer to the (struct hfs_btree)
+ *   int lock_type: the type of access to get to the nodes.
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   struct hfs_belem *: pointer to the root path element or NULL
+ * Preconditions:
+ *   'brec' points to a (struct hfs_brec).
+ *   'tree' points to a valid (struct hfs_btree).
+ * Postconditions:
+ *   If the two calls to brec_bnode_find() succeed then the return value
+ *   points to a (struct hfs_belem) which corresponds to the root node
+ *   of 'brec->tree'.
+ *   Both the root and header nodes are obtained with the type of lock
+ *   given by (flags & HFS_LOCK_MASK).
+ *   The fields 'record' field of the root is set to its last record.
+ *   If the header node is not needed to complete the appropriate
+ *   operation (as determined by the 'keep_flags' field of 'brec') then
+ *   it is released before this function returns.
+ *   If either call to brec_bnode_find() fails, NULL is returned and the
+ *   (struct hfs_brec) pointed to by 'brec' is invalid.
+ */
+struct hfs_belem *hfs_brec_init(struct hfs_brec *brec, struct hfs_btree *tree,
+				int flags)
+{
+	struct hfs_belem *head = &brec->elem[0];
+	struct hfs_belem *root = &brec->elem[1];
+	int lock_type = flags & HFS_LOCK_MASK;
+
+	brec->tree = tree;
+
+	head->bnr = hfs_bnode_find(tree, 0, lock_type);
+	if (!head->bnr.bn) {
+		return NULL;
+	}
+
+	root->bnr = hfs_bnode_find(tree, tree->bthRoot, lock_type);
+	if (!root->bnr.bn) {
+		hfs_bnode_relse(&head->bnr);
+		return NULL;
+	}
+
+	root->record = root->bnr.bn->ndNRecs;
+	
+	brec->top = head;
+	brec->bottom = root;
+	
+	brec->keep_flags = flags & HFS_BPATH_MASK;
+
+	/* HFS_BPATH_FIRST not applicable for root */
+	/* and HFS_BPATH_UNDERFLOW is different */
+	root->flags = overflow(tree, root->bnr.bn);
+	if (root->record < 3) {
+		root->flags |= HFS_BPATH_UNDERFLOW;
+	}
+
+	if (!(root->flags & brec->keep_flags)) {
+		hfs_brec_relse(brec, head);
+	}
+
+	return root;
+}
diff --git a/fs/hfs/btree.c b/fs/hfs/btree.c
new file mode 100644
index 00000000000000..bc23f94c26de52
--- /dev/null
+++ b/fs/hfs/btree.c
@@ -0,0 +1,324 @@
+/*
+ * linux/fs/hfs/btree.c
+ *
+ * Copyright (C) 1995-1997  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * This file contains the code to manipulate the B-tree structure.
+ * The catalog and extents files are both B-trees.
+ *
+ * "XXX" in a comment is a note to myself to consider changing something.
+ *
+ * In function preconditions the term "valid" applied to a pointer to
+ * a structure means that the pointer is non-NULL and the structure it
+ * points to has all fields initialized to consistent values.
+ *
+ * The code in this file initializes some structures which contain
+ * pointers by calling memset(&foo, 0, sizeof(foo)).
+ * This produces the desired behavior only due to the non-ANSI
+ * assumption that the machine representation of NULL is all zeros.
+ */
+
+#include "hfs_btree.h"
+
+/*================ File-local functions ================*/
+
+/*
+ * hfs_bnode_ditch() 
+ *
+ * Description:
+ *   This function deletes an entire linked list of bnodes, so it
+ *   does not need to keep the linked list consistent as
+ *   hfs_bnode_delete() does.
+ *   Called by hfs_btree_init() for error cleanup and by hfs_btree_free().
+ * Input Variable(s):
+ *   struct hfs_bnode *bn: pointer to the first (struct hfs_bnode) in
+ *    the linked list to be deleted.
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   void
+ * Preconditions:
+ *   'bn' is NULL or points to a "valid" (struct hfs_bnode) with a 'prev'
+ *    field of NULL.
+ * Postconditions:
+ *   'bn' and all (struct hfs_bnode)s in the chain of 'next' pointers
+ *   are deleted, freeing the associated memory and hfs_buffer_put()ing
+ *   the associated buffer.
+ */
+static void hfs_bnode_ditch(struct hfs_bnode *bn) {
+	struct hfs_bnode *tmp;
+#if defined(DEBUG_BNODES) || defined(DEBUG_ALL)
+	extern int bnode_count;
+#endif
+
+	while (bn != NULL) {
+		tmp = bn->next;
+#if defined(DEBUG_BNODES) || defined(DEBUG_ALL)
+		hfs_warn("deleting node %d from tree %d with count %d\n",
+		         bn->node, (int)ntohl(bn->tree->entry.cnid), bn->count);
+		--bnode_count;
+#endif
+		hfs_buffer_put(bn->buf); /* safe: checks for NULL argument */
+
+		/* free all but the header */
+		if (bn->node) {
+			HFS_DELETE(bn);
+		}
+		bn = tmp;
+	}
+}
+
+/*================ Global functions ================*/
+
+/*
+ * hfs_btree_free()
+ *
+ * Description:
+ *   This function frees a (struct hfs_btree) obtained from hfs_btree_init().
+ *   Called by hfs_put_super().
+ * Input Variable(s):
+ *   struct hfs_btree *bt: pointer to the (struct hfs_btree) to free
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   void
+ * Preconditions:
+ *   'bt' is NULL or points to a "valid" (struct hfs_btree)
+ * Postconditions:
+ *   If 'bt' points to a "valid" (struct hfs_btree) then all (struct
+ *    hfs_bnode)s associated with 'bt' are freed by calling
+ *    hfs_bnode_ditch() and the memory associated with the (struct
+ *    hfs_btree) is freed.
+ *   If 'bt' is NULL or not "valid" an error is printed and nothing
+ *    is changed.
+ */
+void hfs_btree_free(struct hfs_btree *bt)
+{
+	int lcv;
+
+	if (bt && (bt->magic == HFS_BTREE_MAGIC)) {
+		hfs_extent_free(&bt->entry.u.file.data_fork);
+
+		for (lcv=0; lcv<HFS_CACHELEN; ++lcv) {
+#if defined(DEBUG_BNODES) || defined(DEBUG_ALL)
+			hfs_warn("deleting nodes from bucket %d:\n", lcv);
+#endif
+			hfs_bnode_ditch(bt->cache[lcv]);
+		}
+
+#if defined(DEBUG_BNODES) || defined(DEBUG_ALL)
+		hfs_warn("deleting header and bitmap nodes\n");
+#endif
+		hfs_bnode_ditch(&bt->head);
+
+#if defined(DEBUG_BNODES) || defined(DEBUG_ALL)
+		hfs_warn("deleting root node\n");
+#endif
+		hfs_bnode_ditch(bt->root);
+
+		HFS_DELETE(bt);
+	} else if (bt) {
+		hfs_warn("hfs_btree_free: corrupted hfs_btree.\n");
+	}
+}
+
+/*
+ * hfs_btree_init()
+ *
+ * Description:
+ *   Given some vital information from the MDB (HFS superblock),
+ *   initializes the fields of a (struct hfs_btree).
+ * Input Variable(s):
+ *   struct hfs_mdb *mdb: pointer to the MDB
+ *   ino_t cnid: the CNID (HFS_CAT_CNID or HFS_EXT_CNID) of the B-tree
+ *   hfs_u32 tsize: the size, in bytes, of the B-tree
+ *   hfs_u32 csize: the size, in bytes, of the clump size for the B-tree
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   (struct hfs_btree *): pointer to the initialized hfs_btree on success,
+ *    or NULL on failure
+ * Preconditions:
+ *   'mdb' points to a "valid" (struct hfs_mdb)
+ * Postconditions:
+ *   Assuming the inputs are what they claim to be, no errors occur
+ *   reading from disk, and no inconsistencies are noticed in the data
+ *   read from disk, the return value is a pointer to a "valid"
+ *   (struct hfs_btree).  If there are errors reading from disk or
+ *   inconsistencies are noticed in the data read from disk, then and
+ *   all resources that were allocated are released and NULL is
+ *   returned.	If the inputs are not what they claim to be or if they
+ *   are unnoticed inconsistencies in the data read from disk then the
+ *   returned hfs_btree is probably going to lead to errors when it is
+ *   used in a non-trivial way.
+ */
+struct hfs_btree * hfs_btree_init(struct hfs_mdb *mdb, ino_t cnid,
+				  hfs_byte_t ext[12],
+				  hfs_u32 tsize, hfs_u32 csize)
+{
+	struct hfs_btree * bt;
+	struct BTHdrRec * th;
+	struct hfs_bnode * tmp;
+	unsigned int next;
+#if defined(DEBUG_HEADER) || defined(DEBUG_ALL)
+	unsigned char *p, *q;
+#endif
+
+	if (!mdb || !ext || !HFS_NEW(bt)) {
+		goto bail3;
+	}
+
+	bt->magic = HFS_BTREE_MAGIC;
+	bt->sys_mdb = mdb->sys_mdb;
+	bt->reserved = 0;
+	bt->lock = 0;
+	hfs_init_waitqueue(&bt->wait);
+	bt->dirt = 0;
+	memset(bt->cache, 0, sizeof(bt->cache));
+
+#if 0   /* this is a fake entry. so we don't need to initialize it. */
+	memset(&bt->entry, 0, sizeof(bt->entry));
+	hfs_init_waitqueue(&bt->entry.wait);
+	INIT_LIST_HEAD(&bt->entry.hash);
+	INIT_LIST_HEAD(&bt->entry.list);
+#endif
+
+	bt->entry.mdb = mdb;
+	bt->entry.cnid = cnid;
+	bt->entry.type = HFS_CDR_FIL;
+	bt->entry.u.file.magic = HFS_FILE_MAGIC;
+	bt->entry.u.file.clumpablks = (csize / mdb->alloc_blksz)
+						>> HFS_SECTOR_SIZE_BITS;
+	bt->entry.u.file.data_fork.entry = &bt->entry;
+	bt->entry.u.file.data_fork.lsize = tsize;
+	bt->entry.u.file.data_fork.psize = tsize >> HFS_SECTOR_SIZE_BITS;
+	bt->entry.u.file.data_fork.fork = HFS_FK_DATA;
+	hfs_extent_in(&bt->entry.u.file.data_fork, ext);
+
+	hfs_bnode_read(&bt->head, bt, 0, HFS_STICKY);
+	if (!hfs_buffer_ok(bt->head.buf)) {
+		goto bail2;
+	}
+	th = (struct BTHdrRec *)((char *)hfs_buffer_data(bt->head.buf) +
+						sizeof(struct NodeDescriptor));
+
+	/* read in the bitmap nodes (if any) */
+	tmp = &bt->head;
+	while ((next = tmp->ndFLink)) {
+		if (!HFS_NEW(tmp->next)) {
+			goto bail2;
+		}
+		hfs_bnode_read(tmp->next, bt, next, HFS_STICKY);
+		if (!hfs_buffer_ok(tmp->next->buf)) {
+			goto bail2;
+		}
+		tmp->next->prev = tmp;
+		tmp = tmp->next;
+	}
+
+	if (hfs_get_ns(th->bthNodeSize) != htons(HFS_SECTOR_SIZE)) {
+		hfs_warn("hfs_btree_init: bthNodeSize!=512 not supported\n");
+		goto bail2;
+	}
+
+	if (cnid == htonl(HFS_CAT_CNID)) {
+		bt->compare = (hfs_cmpfn)hfs_cat_compare;
+	} else if (cnid == htonl(HFS_EXT_CNID)) {
+		bt->compare = (hfs_cmpfn)hfs_ext_compare;
+	} else {
+		goto bail2;
+	}
+	bt->bthDepth  = hfs_get_hs(th->bthDepth);
+	bt->bthRoot   = hfs_get_hl(th->bthRoot);
+	bt->bthNRecs  = hfs_get_hl(th->bthNRecs);
+	bt->bthFNode  = hfs_get_hl(th->bthFNode);
+	bt->bthLNode  = hfs_get_hl(th->bthLNode);
+	bt->bthNNodes = hfs_get_hl(th->bthNNodes);
+	bt->bthFree   = hfs_get_hl(th->bthFree);
+	bt->bthKeyLen = hfs_get_hs(th->bthKeyLen);
+
+#if defined(DEBUG_HEADER) || defined(DEBUG_ALL)
+	hfs_warn("bthDepth %d\n", bt->bthDepth);
+	hfs_warn("bthRoot %d\n", bt->bthRoot);
+	hfs_warn("bthNRecs %d\n", bt->bthNRecs);
+	hfs_warn("bthFNode %d\n", bt->bthFNode);
+	hfs_warn("bthLNode %d\n", bt->bthLNode);
+	hfs_warn("bthKeyLen %d\n", bt->bthKeyLen);
+	hfs_warn("bthNNodes %d\n", bt->bthNNodes);
+	hfs_warn("bthFree %d\n", bt->bthFree);
+	p = (unsigned char *)hfs_buffer_data(bt->head.buf);
+	q = p + HFS_SECTOR_SIZE;
+	while (p < q) {
+		hfs_warn("%02x %02x %02x %02x %02x %02x %02x %02x "
+		         "%02x %02x %02x %02x %02x %02x %02x %02x\n",
+			 *p++, *p++, *p++, *p++, *p++, *p++, *p++, *p++,
+			 *p++, *p++, *p++, *p++, *p++, *p++, *p++, *p++);
+	}
+#endif
+
+	/* Read in the root if it exists.
+	   The header always exists, but the root exists only if the
+	   tree is non-empty */
+	if (bt->bthDepth && bt->bthRoot) {
+		if (!HFS_NEW(bt->root)) {
+			goto bail2;
+		}
+		hfs_bnode_read(bt->root, bt, bt->bthRoot, HFS_STICKY);
+		if (!hfs_buffer_ok(bt->root->buf)) {
+			goto bail1;
+		}
+	} else {
+		bt->root = NULL;
+	}
+
+	return bt;
+
+ bail1:
+	hfs_bnode_ditch(bt->root);
+ bail2:
+	hfs_bnode_ditch(&bt->head);
+	HFS_DELETE(bt);
+ bail3:
+	return NULL;
+}
+
+/*
+ * hfs_btree_commit()
+ *
+ * Called to write a possibly dirty btree back to disk.
+ */
+void hfs_btree_commit(struct hfs_btree *bt, hfs_byte_t ext[12], hfs_lword_t size)
+{
+	if (bt->dirt) {
+		struct BTHdrRec *th;
+		th = (struct BTHdrRec *)((char *)hfs_buffer_data(bt->head.buf) +
+						 sizeof(struct NodeDescriptor));
+
+		hfs_put_hs(bt->bthDepth,  th->bthDepth);
+		hfs_put_hl(bt->bthRoot,   th->bthRoot);
+		hfs_put_hl(bt->bthNRecs,  th->bthNRecs);
+		hfs_put_hl(bt->bthFNode,  th->bthFNode);
+		hfs_put_hl(bt->bthLNode,  th->bthLNode);
+		hfs_put_hl(bt->bthNNodes, th->bthNNodes);
+		hfs_put_hl(bt->bthFree,   th->bthFree);
+		hfs_buffer_dirty(bt->head.buf);
+
+		/*
+		 * Commit the bnodes which are not cached.
+		 * The map nodes don't need to be committed here because
+		 * they are committed every time they are changed.
+		 */
+		hfs_bnode_commit(&bt->head);
+		if (bt->root) {
+			hfs_bnode_commit(bt->root);
+		}
+
+	
+		hfs_put_hl(bt->bthNNodes << HFS_SECTOR_SIZE_BITS, size);
+		hfs_extent_out(&bt->entry.u.file.data_fork, ext);
+		/* hfs_buffer_dirty(mdb->buf); (Done by caller) */
+
+		bt->dirt = 0;
+	}
+}
diff --git a/fs/hfs/catalog.c b/fs/hfs/catalog.c
new file mode 100644
index 00000000000000..3bcdaae4e024e8
--- /dev/null
+++ b/fs/hfs/catalog.c
@@ -0,0 +1,1592 @@
+/*
+ * linux/fs/hfs/catalog.c
+ *
+ * Copyright (C) 1995-1997  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * This file contains the functions related to the catalog B-tree.
+ *
+ * "XXX" in a comment is a note to myself to consider changing something.
+ *
+ * Cache code shamelessly stolen from 
+ *     linux/fs/inode.c Copyright (C) 1991, 1992  Linus Torvalds
+ *     re-shamelessly stolen Copyright (C) 1997 Linus Torvalds
+ *
+ * In function preconditions the term "valid" applied to a pointer to
+ * a structure means that the pointer is non-NULL and the structure it
+ * points to has all fields initialized to consistent values.
+ *
+ * The code in this file initializes some structures by calling
+ * memset(&foo, 0, sizeof(foo)).  This produces the desired behavior
+ * only due to the non-ANSI assumption that the machine representation
+ */
+
+#include "hfs.h"
+
+/*================ Variable-like macros ================*/
+
+/* Number of hash table slots */
+#define C_HASHBITS  10
+#define C_HASHSIZE  (1UL << C_HASHBITS)
+#define C_HASHMASK  (C_HASHSIZE - 1)
+
+/* Number of entries to fit in a single page on an i386.
+ * Actually, now it's used to increment the free entry pool. */
+#define CCACHE_INC (PAGE_SIZE/sizeof(struct hfs_cat_entry))
+#define CCACHE_MAX (CCACHE_INC * 8)
+
+/*================ File-local data types ================*/
+
+/* The catalog record for a file */
+typedef struct {
+	hfs_byte_t	Flags;		/* Flags such as read-only */
+	hfs_byte_t	Typ;		/* file version number = 0 */
+	hfs_finfo_t	UsrWds;		/* data used by the Finder */
+	hfs_lword_t	FlNum;		/* The CNID */
+	hfs_word_t	StBlk;		/* obsolete */
+	hfs_lword_t	LgLen;		/* The logical EOF of the data fork*/
+	hfs_lword_t	PyLen;		/* The physical EOF of the data fork */
+	hfs_word_t	RStBlk;		/* obsolete */
+	hfs_lword_t	RLgLen;		/* The logical EOF of the rsrc fork */
+	hfs_lword_t	RPyLen;		/* The physical EOF of the rsrc fork */
+	hfs_lword_t	CrDat;		/* The creation date */
+	hfs_lword_t	MdDat;		/* The modified date */
+	hfs_lword_t	BkDat;		/* The last backup date */
+	hfs_fxinfo_t	FndrInfo;	/* more data for the Finder */
+	hfs_word_t	ClpSize;	/* number of bytes to allocate
+					   when extending files */
+	hfs_byte_t	ExtRec[12];	/* first extent record
+					   for the data fork */
+	hfs_byte_t	RExtRec[12];	/* first extent record
+					   for the resource fork */
+	hfs_lword_t	Resrv;		/* reserved by Apple */
+} __attribute__((packed)) FIL_REC;
+
+/* the catalog record for a directory */
+typedef struct {
+	hfs_word_t	Flags;		/* flags */
+	hfs_word_t	Val;		/* Valence: number of files and
+					   dirs in the directory */
+	hfs_lword_t	DirID;		/* The CNID */
+	hfs_lword_t	CrDat;		/* The creation date */
+	hfs_lword_t	MdDat;		/* The modification date */
+	hfs_lword_t	BkDat;		/* The last backup date */
+	hfs_dinfo_t	UsrInfo;	/* data used by the Finder */
+	hfs_dxinfo_t	FndrInfo;	/* more data used by Finder */
+	hfs_byte_t	Resrv[16];	/* reserved by Apple */
+} __attribute__((packed)) DIR_REC;
+
+/* the catalog record for a thread */
+typedef struct {
+	hfs_byte_t		Reserv[8];	/* reserved by Apple */
+	hfs_lword_t		ParID;		/* CNID of parent directory */
+	struct hfs_name		CName;		/* The name of this entry */
+}  __attribute__((packed)) THD_REC;
+
+/* A catalog tree record */
+struct hfs_cat_rec {
+	hfs_byte_t		cdrType;	/* The type of entry */
+	hfs_byte_t		cdrResrv2;	/* padding */
+	union {
+		FIL_REC fil;
+		DIR_REC dir;
+		THD_REC thd;
+	} u;
+} __attribute__((packed));
+
+/*================ File-local variables ================*/
+ 
+static LIST_HEAD(entry_in_use);
+static LIST_HEAD(entry_unused);
+static struct list_head hash_table[C_HASHSIZE];
+
+static spinlock_t entry_lock = SPIN_LOCK_UNLOCKED;
+
+static struct {
+        int nr_entries;
+        int nr_free_entries;
+} entries_stat;
+
+/*================ File-local functions ================*/
+
+/*
+ * brec_to_id
+ *
+ * Get the CNID from a brec
+ */
+static inline hfs_u32 brec_to_id(struct hfs_brec *brec)
+{
+	struct hfs_cat_rec *rec = brec->data;
+
+	return hfs_get_nl((rec->cdrType==HFS_CDR_FIL) ?
+				rec->u.fil.FlNum : rec->u.dir.DirID);
+}
+
+/*
+ * hashfn()
+ *
+ * hash an (struct mdb *) and a (struct hfs_cat_key *) to an integer.
+ */
+static inline unsigned int hashfn(const struct hfs_mdb *mdb,
+				  const struct hfs_cat_key *key)
+{
+	unsigned int hash;
+	
+	hash = (unsigned long) mdb | (unsigned long) key->ParID[3] | 
+		hfs_strhash(key->CName.Name, key->CName.Len);
+	hash = hash ^ (hash >> C_HASHBITS) ^ (hash >> C_HASHBITS*2);
+	return hash & C_HASHMASK;
+}
+
+/*
+ * hash()
+ *
+ * hash an (struct mdb *) and a (struct hfs_cat_key *)
+ * to a pointer to a slot in the hash table.
+ */
+static inline struct list_head *hash(struct hfs_mdb *mdb,
+				     const struct hfs_cat_key *key)
+{
+	return hash_table + hashfn(mdb, key);
+}
+
+static inline void insert_hash(struct hfs_cat_entry *entry)
+{
+	struct list_head *head = hash(entry->mdb, &entry->key);
+	list_add(&entry->hash, head);
+}
+
+static inline void remove_hash(struct hfs_cat_entry *entry)
+{
+	list_del(&entry->hash);
+	INIT_LIST_HEAD(&entry->hash);
+}
+
+/*
+ * wait_on_entry()
+ *
+ * Sleep until a locked entry is unlocked.
+ */
+static inline void wait_on_entry(struct hfs_cat_entry * entry)
+{
+	while ((entry->state & HFS_LOCK)) {
+		hfs_sleep_on(&entry->wait);
+	}
+}
+
+/*
+ * lock_entry()
+ *
+ * Obtain an exclusive lock on an entry.
+ */
+static void lock_entry(struct hfs_cat_entry * entry)
+{
+	wait_on_entry(entry);
+	spin_lock(&entry_lock);
+	entry->state |= HFS_LOCK;
+	spin_unlock(&entry_lock);
+}
+
+/*
+ * lock_entry()
+ *
+ * Relinquish an exclusive lock on an entry.
+ */
+static void unlock_entry(struct hfs_cat_entry * entry)
+{
+	spin_lock(&entry_lock);
+	entry->state &= ~HFS_LOCK;
+	spin_unlock(&entry_lock);
+	hfs_wake_up(&entry->wait);
+}
+
+/* put entry on mdb dirty list. */
+void hfs_cat_mark_dirty(struct hfs_cat_entry *entry)
+{
+        struct hfs_mdb *mdb = entry->mdb;
+
+	spin_lock(&entry_lock);
+	if (!(entry->state & HFS_DIRTY)) {
+	        entry->state |= HFS_DIRTY;
+
+		/* Only add valid (ie hashed) entries to the dirty list. */
+		if (!list_empty(&entry->hash)) {
+		        list_del(&entry->list);
+			list_add(&entry->list, &mdb->entry_dirty);
+		}
+	}
+	spin_unlock(&entry_lock);
+}
+
+/* delete an entry and remove it from the hash table. */
+static void delete_entry(struct hfs_cat_entry *entry)
+{
+        if (!(entry->state & HFS_DELETED)) {
+	        entry->state |= HFS_DELETED;
+		list_del(&entry->hash);
+		INIT_LIST_HEAD(&entry->hash);
+
+	        if (entry->type == HFS_CDR_FIL) {
+		  /* free all extents */
+		  entry->u.file.data_fork.lsize = 0;
+		  hfs_extent_adj(&entry->u.file.data_fork);
+		  entry->u.file.rsrc_fork.lsize = 0;
+		  hfs_extent_adj(&entry->u.file.rsrc_fork);
+		}
+	}
+}
+
+
+static inline void init_entry(struct hfs_cat_entry *entry)
+{
+	memset(entry, 0, sizeof(*entry));
+	hfs_init_waitqueue(&entry->wait);
+	INIT_LIST_HEAD(&entry->hash);
+	INIT_LIST_HEAD(&entry->list);
+}
+
+/*
+ * hfs_cat_alloc()
+ *
+ * Try to allocate another entry. 
+ */
+static inline struct hfs_cat_entry *hfs_cat_alloc(void)
+{
+        struct hfs_cat_entry *entry;
+
+	if (!HFS_NEW(entry))
+	        return NULL;
+
+	init_entry(entry);
+	return entry;
+}
+
+/* this gets called with the spinlock held. */
+static int grow_entries(void)
+{
+        struct hfs_cat_entry *entry;
+	int i;
+	
+	for (i = 0; i < CCACHE_INC; i++) {
+	        if (!(entry = hfs_cat_alloc()))
+		        break;
+		list_add(&entry->list, &entry_unused);
+	}
+
+	entries_stat.nr_entries += i;
+	entries_stat.nr_free_entries += i;
+	        
+	return i;
+}
+
+/*
+ * __read_entry()
+ *
+ * Convert a (struct hfs_cat_rec) to a (struct hfs_cat_entry).
+ */
+static void __read_entry(struct hfs_cat_entry *entry,
+			 const struct hfs_cat_rec *cat)
+{
+	entry->type = cat->cdrType;
+
+	if (cat->cdrType == HFS_CDR_DIR) {
+		struct hfs_dir *dir = &entry->u.dir;
+
+		entry->cnid = hfs_get_nl(cat->u.dir.DirID);
+
+		dir->magic = HFS_DIR_MAGIC;
+		dir->flags = hfs_get_ns(cat->u.dir.Flags);
+		memcpy(&entry->info.dir.dinfo, &cat->u.dir.UsrInfo, 16);
+		memcpy(&entry->info.dir.dxinfo, &cat->u.dir.FndrInfo, 16);
+		entry->create_date = hfs_get_nl(cat->u.dir.CrDat);
+		entry->modify_date = hfs_get_nl(cat->u.dir.MdDat);
+		entry->backup_date = hfs_get_nl(cat->u.dir.BkDat);
+		dir->dirs = dir->files = 0;
+		hfs_init_waitqueue(&dir->read_wait);
+		hfs_init_waitqueue(&dir->write_wait);
+	} else if (cat->cdrType == HFS_CDR_FIL) {
+		struct hfs_file *fil = &entry->u.file;
+
+		entry->cnid = hfs_get_nl(cat->u.fil.FlNum);
+
+		fil->magic = HFS_FILE_MAGIC;
+
+		fil->data_fork.fork = HFS_FK_DATA;
+		fil->data_fork.entry = entry;
+		fil->data_fork.lsize = hfs_get_hl(cat->u.fil.LgLen);
+		fil->data_fork.psize = hfs_get_hl(cat->u.fil.PyLen) >>
+						     HFS_SECTOR_SIZE_BITS;
+		hfs_extent_in(&fil->data_fork, cat->u.fil.ExtRec);
+
+		fil->rsrc_fork.fork = HFS_FK_RSRC;
+		fil->rsrc_fork.entry = entry;
+		fil->rsrc_fork.lsize = hfs_get_hl(cat->u.fil.RLgLen);
+		fil->rsrc_fork.psize = hfs_get_hl(cat->u.fil.RPyLen) >>
+						     HFS_SECTOR_SIZE_BITS;
+		hfs_extent_in(&fil->rsrc_fork, cat->u.fil.RExtRec);
+
+		memcpy(&entry->info.file.finfo, &cat->u.fil.UsrWds, 16);
+		memcpy(&entry->info.file.fxinfo, &cat->u.fil.FndrInfo, 16);
+
+		entry->create_date = hfs_get_nl(cat->u.fil.CrDat);
+		entry->modify_date = hfs_get_nl(cat->u.fil.MdDat);
+		entry->backup_date = hfs_get_nl(cat->u.fil.BkDat);
+		fil->clumpablks = (hfs_get_hs(cat->u.fil.ClpSize)
+					/ entry->mdb->alloc_blksz)
+						>> HFS_SECTOR_SIZE_BITS;
+		fil->flags = cat->u.fil.Flags;
+	} else {
+		hfs_warn("hfs_fs: entry is neither file nor directory!\n");
+	}
+}
+
+/*
+ * count_dir_entries()
+ *
+ * Count the number of files and directories in a given directory.
+ */
+static inline void count_dir_entries(struct hfs_cat_entry *entry,
+				     struct hfs_brec *brec)
+{
+	int error = 0;
+	hfs_u32 cnid;
+	hfs_u8 type;
+
+	if (!hfs_cat_open(entry, brec)) {
+		while (!(error = hfs_cat_next(entry, brec, 1, &cnid, &type))) {
+			if (type == HFS_CDR_FIL) {
+				++entry->u.dir.files;
+			} else if (type == HFS_CDR_DIR) {
+				++entry->u.dir.dirs;
+			}
+		} /* -ENOENT is normal termination */
+	}
+	if (error != -ENOENT) {
+		entry->cnid = 0;
+	}
+}
+
+/*
+ * read_entry()
+ *
+ * Convert a (struct hfs_brec) to a (struct hfs_cat_entry).
+ */
+static inline void read_entry(struct hfs_cat_entry *entry,
+			      struct hfs_brec *brec)
+{
+	int need_count;
+	struct hfs_cat_rec *rec = brec->data;
+
+	__read_entry(entry, rec);
+
+	need_count = (rec->cdrType == HFS_CDR_DIR) && rec->u.dir.Val;
+
+	hfs_brec_relse(brec, NULL);
+
+	if (need_count) {
+		count_dir_entries(entry, brec);
+	}
+}
+
+/*
+ * __write_entry()
+ *
+ * Convert a (struct hfs_cat_entry) to a (struct hfs_cat_rec).
+ */
+static void __write_entry(const struct hfs_cat_entry *entry,
+			  struct hfs_cat_rec *cat)
+{
+	if (entry->type == HFS_CDR_DIR) {
+		const struct hfs_dir *dir = &entry->u.dir;
+
+		hfs_put_ns(dir->flags,             cat->u.dir.Flags);
+		hfs_put_hs(dir->dirs + dir->files, cat->u.dir.Val);
+		hfs_put_nl(entry->cnid,            cat->u.dir.DirID);
+		hfs_put_nl(entry->create_date,     cat->u.dir.CrDat);
+		hfs_put_nl(entry->modify_date,     cat->u.dir.MdDat);
+		hfs_put_nl(entry->backup_date,     cat->u.dir.BkDat);
+		memcpy(&cat->u.dir.UsrInfo, &entry->info.dir.dinfo, 16);
+		memcpy(&cat->u.dir.FndrInfo, &entry->info.dir.dxinfo, 16);
+	} else if (entry->type == HFS_CDR_FIL) {
+		const struct hfs_file *fil = &entry->u.file;
+
+		cat->u.fil.Flags = fil->flags;
+		hfs_put_nl(entry->cnid,            cat->u.fil.FlNum);
+		memcpy(&cat->u.fil.UsrWds, &entry->info.file.finfo, 16);
+		hfs_put_hl(fil->data_fork.lsize, cat->u.fil.LgLen);
+		hfs_put_hl(fil->data_fork.psize << HFS_SECTOR_SIZE_BITS,
+ 							cat->u.fil.PyLen);
+		hfs_put_hl(fil->rsrc_fork.lsize, cat->u.fil.RLgLen);
+		hfs_put_hl(fil->rsrc_fork.psize << HFS_SECTOR_SIZE_BITS,
+ 							cat->u.fil.RPyLen);
+		hfs_put_nl(entry->create_date,     cat->u.fil.CrDat);
+		hfs_put_nl(entry->modify_date,     cat->u.fil.MdDat);
+		hfs_put_nl(entry->backup_date,     cat->u.fil.BkDat);
+		memcpy(&cat->u.fil.FndrInfo, &entry->info.file.fxinfo, 16);
+		hfs_put_hs((fil->clumpablks * entry->mdb->alloc_blksz)
+				<< HFS_SECTOR_SIZE_BITS, cat->u.fil.ClpSize);
+		hfs_extent_out(&fil->data_fork, cat->u.fil.ExtRec);
+		hfs_extent_out(&fil->rsrc_fork, cat->u.fil.RExtRec);
+	} else {
+		hfs_warn("__write_entry: invalid entry\n");
+	}
+}
+
+/*
+ * write_entry()
+ *
+ * Write a modified entry back to the catalog B-tree. this gets called
+ * with the entry locked.
+ */
+static void write_entry(struct hfs_cat_entry * entry)
+{
+	struct hfs_brec brec;
+	int error;
+
+	if (!(entry->state & HFS_DELETED)) {
+		error = hfs_bfind(&brec, entry->mdb->cat_tree,
+				  HFS_BKEY(&entry->key), HFS_BFIND_WRITE);
+		if (!error) {
+			if ((entry->state & HFS_KEYDIRTY)) {
+				/* key may have changed case due to a rename */
+				entry->state &= ~HFS_KEYDIRTY;
+				if (brec.key->KeyLen != entry->key.KeyLen) {
+					hfs_warn("hfs_write_entry: key length "
+						 "changed!\n");
+					error = 1;
+				} else {
+					memcpy(brec.key, &entry->key,
+					       entry->key.KeyLen);
+				}
+			} else if (entry->cnid != brec_to_id(&brec)) {
+				hfs_warn("hfs_write_entry: CNID "
+					 "changed unexpectedly!\n");
+				error = 1;
+			}
+			if (!error) {
+				__write_entry(entry, brec.data);
+			}
+			hfs_brec_relse(&brec, NULL);
+		}
+		if (error) {
+			hfs_warn("hfs_write_entry: unable to write "
+				 "entry %08x\n", entry->cnid);
+		}
+	}
+}
+
+
+/* this gets called with the spinlock held. */
+static struct hfs_cat_entry *find_entry(struct hfs_mdb *mdb,
+					const struct hfs_cat_key *key)
+{
+	struct list_head *tmp, *head = hash(mdb, key);
+	struct hfs_cat_entry * entry;
+
+	tmp = head;
+	for (;;) {
+		tmp = tmp->next;
+		entry = NULL;
+		if (tmp == head)
+			break;
+		entry = list_entry(tmp, struct hfs_cat_entry, hash);
+		if (entry->mdb != mdb)
+			continue;
+		if (hfs_cat_compare(&entry->key, key)) {
+			continue;
+		}
+		entry->count++;
+		break;
+	}
+
+	return entry;
+}
+
+
+/* be careful. this gets called with the spinlock held. */
+static struct hfs_cat_entry *get_new_entry(struct hfs_mdb *mdb,
+					   const struct hfs_cat_key *key,
+					   const int read)
+{
+	struct hfs_cat_entry *entry;
+	struct list_head *head = hash(mdb, key);
+	struct list_head *tmp;
+
+add_new_entry:
+	tmp = entry_unused.next;
+	if ((tmp != &entry_unused) ) {
+		list_del(tmp);
+		entries_stat.nr_free_entries--;
+		entry = list_entry(tmp, struct hfs_cat_entry, list);
+		list_add(&entry->list, &entry_in_use);
+		list_add(&entry->hash, head);
+		entry->mdb = mdb;
+		entry->count = 1;
+		memcpy(&entry->key, key, sizeof(*key));
+		entry->state = HFS_LOCK;
+		spin_unlock(&entry_lock);
+
+		if (read) {
+		   struct hfs_brec brec;
+
+		   if (hfs_bfind(&brec, mdb->cat_tree,
+				 HFS_BKEY(key), HFS_BFIND_READ_EQ)) {
+		        /* uh oh. we failed to read the record.
+			 * the entry doesn't actually exist. */
+		        goto read_fail;
+		   }
+
+		   read_entry(entry, &brec);
+		   
+		   /* error */
+		   if (!entry->cnid) {
+		        goto read_fail;
+		   }
+
+		   /* we don't have to acquire a spinlock here or
+		    * below for the unlocking bits as we're the first
+		    * user of this entry. */
+		   entry->state &= ~HFS_LOCK;
+		   hfs_wake_up(&entry->wait);
+		}
+
+		return entry;
+	}
+
+
+	/* try to allocate more entries. grow_entries() doesn't release
+	 * the spinlock. */
+	if (grow_entries())
+	        goto add_new_entry;
+
+	spin_unlock(&entry_lock);
+	return NULL;
+
+read_fail: 
+	/* short-cut hfs_cat_put by doing everything here. */
+	spin_lock(&entry_lock);
+	list_del(&entry->hash);
+	list_del(&entry->list);
+	init_entry(entry);
+	list_add(&entry->list, &entry_unused);
+	entries_stat.nr_free_entries++;
+	spin_unlock(&entry_lock);
+	return NULL;
+}
+
+/*
+ * get_entry()
+ *
+ * Try to return an entry for the indicated file or directory.
+ * If ('read' == 0) then no attempt will be made to read it from disk
+ * and a locked, but uninitialized, entry is returned.
+ */
+static struct hfs_cat_entry *get_entry(struct hfs_mdb *mdb,
+				       const struct hfs_cat_key *key,
+				       const int read)
+{
+	struct hfs_cat_entry * entry;
+
+#if defined(DEBUG_CATALOG) || defined(DEBUG_ALL)
+	hfs_warn("hfs_get_entry: mdb=%p key=%s read=%d\n",
+		 mdb, key->CName.Name, read);
+#endif
+
+	spin_lock(&entry_lock);
+	entry = find_entry(mdb, key);
+	if (!entry) {
+	        return get_new_entry(mdb, key, read);
+	}
+	spin_unlock(&entry_lock);
+	wait_on_entry(entry);
+	return entry;
+}
+
+/* 
+ * new_cnid()
+ *
+ * Allocate a CNID to use for a new file or directory.
+ */
+static inline hfs_u32 new_cnid(struct hfs_mdb *mdb)
+{
+	/* If the create succeeds then the mdb will get dirtied */
+	return htonl(mdb->next_id++);
+}
+
+/*
+ * update_dir()
+ *
+ * Update counts, times and dirt on a changed directory
+ */
+static void update_dir(struct hfs_mdb *mdb, struct hfs_cat_entry *dir,
+		       int is_dir, int count)
+{
+	/* update counts */
+	if (is_dir) {
+		mdb->dir_count += count;
+		dir->u.dir.dirs += count;
+		if (dir->cnid == htonl(HFS_ROOT_CNID)) {
+			mdb->root_dirs += count;
+		}
+	} else {
+		mdb->file_count += count;
+		dir->u.dir.files += count;
+		if (dir->cnid == htonl(HFS_ROOT_CNID)) {
+			mdb->root_files += count;
+		}
+	}
+	
+	/* update times and dirt */
+	dir->modify_date = hfs_time();
+	hfs_cat_mark_dirty(dir);
+}
+
+/*
+ * Add a writer to dir, excluding readers.
+ *
+ * XXX: this is wrong. it allows a move to occur when a directory
+ *      is being written to. 
+ */
+static inline void start_write(struct hfs_cat_entry *dir)
+{
+	if (dir->u.dir.readers || waitqueue_active(&dir->u.dir.read_wait)) {
+		hfs_sleep_on(&dir->u.dir.write_wait);
+	}
+	++dir->u.dir.writers;
+}
+
+/*
+ * Add a reader to dir, excluding writers.
+ */
+static inline void start_read(struct hfs_cat_entry *dir)
+{
+	if (dir->u.dir.writers || waitqueue_active(&dir->u.dir.write_wait)) {
+		hfs_sleep_on(&dir->u.dir.read_wait);
+	}
+	++dir->u.dir.readers;
+}
+
+/*
+ * Remove a writer from dir, possibly admitting readers.
+ */
+static inline void end_write(struct hfs_cat_entry *dir)
+{
+	if (!(--dir->u.dir.writers)) {
+		hfs_wake_up(&dir->u.dir.read_wait);
+	}
+}
+
+/*
+ * Remove a reader from dir, possibly admitting writers.
+ */
+static inline void end_read(struct hfs_cat_entry *dir)
+{
+	if (!(--dir->u.dir.readers)) {
+		hfs_wake_up(&dir->u.dir.write_wait);
+	}
+}
+
+/*
+ * create_entry()
+ *
+ * Add a new file or directory to the catalog B-tree and
+ * return a (struct hfs_cat_entry) for it in '*result'.
+ */
+static int create_entry(struct hfs_cat_entry *parent, struct hfs_cat_key *key,
+			const struct hfs_cat_rec *record, int is_dir,
+			hfs_u32 cnid, struct hfs_cat_entry **result)
+{
+	struct hfs_mdb *mdb = parent->mdb;
+	struct hfs_cat_entry *entry;
+	struct hfs_cat_key thd_key;
+	struct hfs_cat_rec thd_rec;
+	int error, has_thread;
+
+	if (result) {
+		*result = NULL;
+	}
+
+	/* keep readers from getting confused by changing dir size */
+	start_write(parent);
+
+	/* create a locked entry in the cache */
+	entry = get_entry(mdb, key, 0);
+	if (!entry) {
+		/* The entry exists but can't be read */
+		error = -EIO;
+		goto done;
+	}
+
+	if (entry->cnid) {
+		/* The (unlocked) entry exists in the cache */
+		error = -EEXIST;
+		goto bail2;
+	}
+
+	/* limit directory valence to signed 16-bit integer */
+        if ((parent->u.dir.dirs + parent->u.dir.files) >= HFS_MAX_VALENCE) {
+		error = -ENOSPC;
+		goto bail1;
+	}
+
+	has_thread = is_dir || (record->u.fil.Flags & HFS_FIL_THD);
+
+	if (has_thread) {
+		/* init some fields for the thread record */
+		memset(&thd_rec, 0, sizeof(thd_rec));
+		thd_rec.cdrType = is_dir ? HFS_CDR_THD : HFS_CDR_FTH;
+		memcpy(&thd_rec.u.thd.ParID, &key->ParID,
+		       sizeof(hfs_u32) + sizeof(struct hfs_name));
+
+		/* insert the thread record */
+		hfs_cat_build_key(cnid, NULL, &thd_key);
+		error = hfs_binsert(mdb->cat_tree, HFS_BKEY(&thd_key),
+				    &thd_rec, 2 + sizeof(THD_REC));
+		if (error) {
+			goto bail1;
+		}
+	}
+
+	/* insert the record */
+	error = hfs_binsert(mdb->cat_tree, HFS_BKEY(key), record,
+				is_dir ?  2 + sizeof(DIR_REC) :
+					  2 + sizeof(FIL_REC));
+	if (error) {
+		if (has_thread && (error != -EIO)) {
+			/* at least TRY to remove the thread record */
+			(void)hfs_bdelete(mdb->cat_tree, HFS_BKEY(&thd_key));
+		}
+		goto bail1;
+	}
+
+	/* update the parent directory */
+	update_dir(mdb, parent, is_dir, 1);
+
+	/* complete the cache entry and return success */
+	__read_entry(entry, record);
+	unlock_entry(entry);
+
+	if (result) {
+		*result = entry;
+	} else {
+		hfs_cat_put(entry);
+	}
+	goto done;
+
+bail1:
+	/* entry really didn't exist, so we don't need to really delete it.
+	 * we do need to remove it from the hash, though. */
+	entry->state |= HFS_DELETED;
+	remove_hash(entry);
+	unlock_entry(entry);
+bail2:
+	hfs_cat_put(entry);
+done:
+	end_write(parent);
+	return error;
+}
+
+/*================ Global functions ================*/
+
+/* 
+ * hfs_cat_put()
+ *
+ * Release an entry we aren't using anymore.
+ *
+ * nothing in hfs_cat_put goes to sleep now except on the initial entry.  
+ */
+void hfs_cat_put(struct hfs_cat_entry * entry)
+{
+	if (entry) {
+	        wait_on_entry(entry);
+
+		/* just in case. this should never happen. */
+		if (!entry->count) { 
+		  hfs_warn("hfs_cat_put: trying to free free entry: %p\n",
+			   entry);
+		  return;
+		}
+
+#if defined(DEBUG_CATALOG) || defined(DEBUG_ALL)
+		hfs_warn("hfs_cat_put: %p(%u) type=%d state=%lu\n", 
+			 entry, entry->count, entry->type, entry->state);
+#endif
+		spin_lock(&entry_lock);
+		if (!--entry->count) {
+			if ((entry->state & HFS_DELETED))
+			        goto entry_deleted;
+
+			if ((entry->type == HFS_CDR_FIL)) {
+		                /* clear out any cached extents */
+			        if (entry->u.file.data_fork.first.next) {
+				  hfs_extent_free(&entry->u.file.data_fork);
+				}
+				if (entry->u.file.rsrc_fork.first.next) {
+				  hfs_extent_free(&entry->u.file.rsrc_fork);
+				}
+			}
+
+			/* if we put a dirty entry, write it out. */
+			if ((entry->state & HFS_DIRTY)) {
+			        entry->state ^= HFS_DIRTY | HFS_LOCK;
+				write_entry(entry);
+				entry->state &= ~HFS_LOCK;
+			}
+
+			list_del(&entry->hash);
+entry_deleted: 		/* deleted entries have already been removed
+			 * from the hash list. */
+			list_del(&entry->list);
+			if (entries_stat.nr_free_entries > CCACHE_MAX) {
+			        HFS_DELETE(entry);
+				entries_stat.nr_entries--;
+			} else {
+				init_entry(entry);
+				list_add(&entry->list, &entry_unused);
+				entries_stat.nr_free_entries++;
+			}
+		}
+		spin_unlock(&entry_lock);
+	}
+}
+
+/* 
+ * hfs_cat_get()
+ *
+ * Wrapper for get_entry() which always calls with ('read'==1).
+ * Used for access to get_entry() from outside this file.
+ */
+struct hfs_cat_entry *hfs_cat_get(struct hfs_mdb *mdb,
+				  const struct hfs_cat_key *key)
+{
+	return get_entry(mdb, key, 1);
+}
+
+/* invalidate all entries for a device */
+static void invalidate_list(struct list_head *head, struct hfs_mdb *mdb,
+			    struct list_head *dispose)
+{
+        struct list_head *next;
+
+	next = head->next;
+	for (;;) {
+	        struct list_head *tmp = next;
+		struct hfs_cat_entry * entry;
+		
+		next = next->next;
+		if (tmp == head)
+		        break;
+		entry = list_entry(tmp, struct hfs_cat_entry, list);
+		if (entry->mdb != mdb) {
+			continue;
+		}
+
+		if (!entry->count) {
+		        list_del(&entry->hash);
+			INIT_LIST_HEAD(&entry->hash);
+			list_del(&entry->list);
+			list_add(&entry->list, dispose);
+			continue;
+		}
+		
+		hfs_warn("hfs_fs: entry %p(%u) busy on removed device %s.\n",
+			 entry, entry->count, 
+			 hfs_mdb_name(entry->mdb->sys_mdb));
+	}
+}
+
+/* delete entries from a list */
+static void delete_list(struct list_head *head) 
+{
+	struct list_head *next = head->next;
+	struct hfs_cat_entry *entry;
+	
+	for (;;) {
+		struct list_head * tmp = next;
+
+		next = next->next;
+		if (tmp == head) {
+			break;
+		}
+		entry = list_entry(tmp, struct hfs_cat_entry, list);
+		HFS_DELETE(entry);
+	}
+}
+
+/* 
+ * hfs_cat_invalidate()
+ *
+ * Called by hfs_mdb_put() to remove all the entries
+ * in the cache that are associated with a given MDB.
+ */
+void hfs_cat_invalidate(struct hfs_mdb *mdb)
+{
+	LIST_HEAD(throw_away);
+
+	spin_lock(&entry_lock);
+	invalidate_list(&entry_in_use, mdb, &throw_away);
+	invalidate_list(&mdb->entry_dirty, mdb, &throw_away);
+	spin_unlock(&entry_lock);
+
+	delete_list(&throw_away);
+#if defined(DEBUG_CATALOG) || defined(DEBUG_ALL)
+	hfs_warn("hfs_cat_invalidate: free=%d total=%d\n",
+		 entries_stat.nr_free_entries,
+		 entries_stat.nr_entries);
+#endif
+}
+
+/*
+ * hfs_cat_commit()
+ *
+ * Called by hfs_mdb_commit() to write dirty entries to the disk buffers.
+ */
+void hfs_cat_commit(struct hfs_mdb *mdb)
+{
+        struct list_head *tmp, *head = &mdb->entry_dirty;
+	struct hfs_cat_entry *entry;
+
+	spin_lock(&entry_lock);
+	while ((tmp = head->prev) != head) {
+	        entry = list_entry(tmp, struct hfs_cat_entry, list);
+		  
+		if ((entry->state & HFS_LOCK)) {
+		        spin_unlock(&entry_lock);
+			wait_on_entry(entry);
+			spin_lock(&entry_lock);
+		} else {
+		       struct list_head *insert = &entry_in_use;
+
+		       if (!entry->count)
+			        insert = entry_in_use.prev;
+
+		       /* add to in_use list */
+		       list_del(&entry->list);
+		       list_add(&entry->list, insert);
+
+		       /* reset DIRTY, set LOCK */
+		       entry->state ^= HFS_DIRTY | HFS_LOCK;
+		       spin_unlock(&entry_lock);
+		       write_entry(entry);
+		       spin_lock(&entry_lock);
+		       entry->state &= ~HFS_LOCK;
+		       hfs_wake_up(&entry->wait);
+		}
+	}
+	spin_unlock(&entry_lock);
+}
+
+/*
+ * hfs_cat_free()
+ *
+ * Releases all the memory allocated in grow_entries().
+ * Must call hfs_cat_invalidate() on all MDBs before calling this.
+ * This only gets rid of the unused pool of entries. all the other
+ * entry references should have either been freed by cat_invalidate
+ * or moved onto the unused list.
+ */
+void hfs_cat_free(void)
+{
+	delete_list(&entry_unused);
+}
+
+/*
+ * hfs_cat_compare()
+ *
+ * Description:
+ *   This is the comparison function used for the catalog B-tree.  In
+ *   comparing catalog B-tree entries, the parent id is the most
+ *   significant field (compared as unsigned ints).  The name field is
+ *   the least significant (compared in "Macintosh lexical order",
+ *   see hfs_strcmp() in string.c)
+ * Input Variable(s):
+ *   struct hfs_cat_key *key1: pointer to the first key to compare
+ *   struct hfs_cat_key *key2: pointer to the second key to compare
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   int: negative if key1<key2, positive if key1>key2, and 0 if key1==key2
+ * Preconditions:
+ *   key1 and key2 point to "valid" (struct hfs_cat_key)s.
+ * Postconditions:
+ *   This function has no side-effects
+ */
+int hfs_cat_compare(const struct hfs_cat_key *key1,
+		    const struct hfs_cat_key *key2)
+{
+	unsigned int parents;
+	int retval;
+
+	parents = hfs_get_hl(key1->ParID) - hfs_get_hl(key2->ParID);
+	if (parents != 0) {
+		retval = (int)parents;
+	} else {
+		retval = hfs_strcmp(key1->CName.Name, key1->CName.Len,
+				    key2->CName.Name, key2->CName.Len);
+	}
+	return retval;
+}
+
+/*
+ * hfs_cat_build_key()
+ *
+ * Given the ID of the parent and the name build a search key.
+ */
+void hfs_cat_build_key(hfs_u32 parent, const struct hfs_name *cname,
+		       struct hfs_cat_key *key)
+{
+	hfs_put_nl(parent, key->ParID);
+
+	if (cname) {
+		key->KeyLen = 6 + cname->Len;
+		memcpy(&key->CName, cname, sizeof(*cname));
+	} else {
+		key->KeyLen = 6;
+		memset(&key->CName, 0, sizeof(*cname));
+	}
+}
+
+/*
+ * hfs_cat_open()
+ *
+ * Given a directory on an HFS filesystem get its thread and
+ * lock the directory against insertions and deletions.
+ * Return 0 on success or an error code on failure.
+ */
+int hfs_cat_open(struct hfs_cat_entry *dir, struct hfs_brec *brec)
+{
+	struct hfs_cat_key key;
+	int error;
+
+	if (dir->type != HFS_CDR_DIR) {
+		return -EINVAL;
+	}
+	
+	/* Block writers */
+	start_read(dir);
+
+	/* Find the directory */
+	hfs_cat_build_key(dir->cnid, NULL, &key);
+	error = hfs_bfind(brec, dir->mdb->cat_tree,
+			  HFS_BKEY(&key), HFS_BFIND_READ_EQ);
+
+	if (error) {
+		end_read(dir);
+	}
+
+	return error;
+}
+
+/*
+ * hfs_cat_next()
+ *
+ * Given a catalog brec structure, replace it with the count'th next brec
+ * in the same directory.
+ * Return an error code if there is a problem, 0 if OK.
+ * Note that an error code of -ENOENT means there are no more entries
+ * in this directory.
+ * The directory is "closed" on an error.
+ */
+int hfs_cat_next(struct hfs_cat_entry *dir, struct hfs_brec *brec,
+		 hfs_u16 count, hfs_u32 *cnid, hfs_u8 *type)
+{
+	int error;
+
+	if (!dir || !brec) {
+		return -EINVAL;
+	}
+
+	/* Get the count'th next catalog tree entry */
+	error = hfs_bsucc(brec, count);
+	if (!error) {
+		struct hfs_cat_key *key = (struct hfs_cat_key *)brec->key;
+		if (hfs_get_nl(key->ParID) != dir->cnid) {
+			hfs_brec_relse(brec, NULL);
+			error = -ENOENT;
+		}
+	}
+	if (!error) {
+		*type = ((struct hfs_cat_rec *)brec->data)->cdrType;
+		*cnid = brec_to_id(brec);
+	} else {
+		end_read(dir);
+	}
+	return error;
+}
+
+/*
+ * hfs_cat_close()
+ *
+ * Given a catalog brec structure, replace it with the count'th next brec
+ * in the same directory.
+ * Return an error code if there is a problem, 0 if OK.
+ * Note that an error code of -ENOENT means there are no more entries
+ * in this directory.
+ */
+void hfs_cat_close(struct hfs_cat_entry *dir, struct hfs_brec *brec)
+{
+	if (dir && brec) {
+		hfs_brec_relse(brec, NULL);
+		end_read(dir);
+	}
+}
+
+/*
+ * hfs_cat_parent()
+ *
+ * Given a catalog entry, return the entry for its parent.
+ * Uses catalog key for the entry to get its parent's ID
+ * and then uses the parent's thread record to locate the
+ * parent's actual catalog entry.
+ */
+struct hfs_cat_entry *hfs_cat_parent(struct hfs_cat_entry *entry)
+{
+	struct hfs_cat_entry *retval = NULL;
+	struct hfs_mdb *mdb = entry->mdb;
+	struct hfs_brec brec;
+	struct hfs_cat_key key;
+	int error;
+
+	lock_entry(entry);
+	if (!(entry->state & HFS_DELETED)) {
+		hfs_cat_build_key(hfs_get_nl(entry->key.ParID), NULL, &key);
+		error = hfs_bfind(&brec, mdb->cat_tree,
+				  HFS_BKEY(&key), HFS_BFIND_READ_EQ);
+		if (!error) {
+			/* convert thread record to key */
+			struct hfs_cat_rec *rec = brec.data;
+			key.KeyLen = 6 + rec->u.thd.CName.Len;
+			memcpy(&key.ParID, &rec->u.thd.ParID,
+                       	       sizeof(hfs_u32) + sizeof(struct hfs_name));
+
+                	hfs_brec_relse(&brec, NULL);
+
+			retval = hfs_cat_get(mdb, &key);
+		}
+	}
+	unlock_entry(entry);
+	return retval;
+}
+	
+/*
+ * hfs_cat_create()
+ *
+ * Create a new file with the indicated name in the indicated directory.
+ * The file will have the indicated flags, type and creator.
+ * If successful an (struct hfs_cat_entry) is returned in '*result'.
+ */
+int hfs_cat_create(struct hfs_cat_entry *parent, struct hfs_cat_key *key,
+		   hfs_u8 flags, hfs_u32 type, hfs_u32 creator,
+		   struct hfs_cat_entry **result)
+{
+	struct hfs_cat_rec record;
+	hfs_u32 id = new_cnid(parent->mdb);
+	hfs_u32 mtime = hfs_time();
+
+#if defined(DEBUG_CATALOG) || defined(DEBUG_ALL)
+	hfs_warn("hfs_cat_create: %p/%s flags=%d res=%p\n",
+		 parent, key->CName.Name, flags, result);
+#endif
+	/* init some fields for the file record */
+	memset(&record, 0, sizeof(record));
+	record.cdrType = HFS_CDR_FIL;
+	record.u.fil.Flags = flags | HFS_FIL_USED;
+	hfs_put_nl(id,      record.u.fil.FlNum);
+	hfs_put_nl(mtime,   record.u.fil.CrDat);
+	hfs_put_nl(mtime,   record.u.fil.MdDat);
+	hfs_put_nl(0,       record.u.fil.BkDat);
+	hfs_put_nl(type,    record.u.fil.UsrWds.fdType);
+	hfs_put_nl(creator, record.u.fil.UsrWds.fdCreator);
+
+	return create_entry(parent, key, &record, 0, id, result);
+}
+
+/*
+ * hfs_cat_mkdir()
+ *
+ * Create a new directory with the indicated name in the indicated directory.
+ * If successful an (struct hfs_cat_entry) is returned in '*result'.
+ */
+int hfs_cat_mkdir(struct hfs_cat_entry *parent, struct hfs_cat_key *key,
+		  struct hfs_cat_entry **result)
+{
+	struct hfs_cat_rec record;
+	hfs_u32 id = new_cnid(parent->mdb);
+	hfs_u32 mtime = hfs_time();
+
+#if defined(DEBUG_CATALOG) || defined(DEBUG_ALL)
+	hfs_warn("hfs_cat_mkdir: %p/%s res=%p\n", parent, key->CName.Name,
+		 result);
+#endif
+
+	/* init some fields for the directory record */
+	memset(&record, 0, sizeof(record));
+	record.cdrType = HFS_CDR_DIR;
+	hfs_put_nl(id,     record.u.dir.DirID);
+	hfs_put_nl(mtime, record.u.dir.CrDat);
+	hfs_put_nl(mtime, record.u.dir.MdDat);
+	hfs_put_nl(0,     record.u.dir.BkDat);
+	hfs_put_hs(0xff,  record.u.dir.UsrInfo.frView);
+
+	return create_entry(parent, key, &record, 1, id, result);
+}
+
+/*
+ * hfs_cat_delete()
+ *
+ * Delete the indicated file or directory.
+ * The associated thread is also removed unless ('with_thread'==0).
+ */
+int hfs_cat_delete(struct hfs_cat_entry *parent, struct hfs_cat_entry *entry,
+		   int with_thread)
+{
+	struct hfs_cat_key key;
+	struct hfs_mdb *mdb = parent->mdb;
+	int is_dir, error = 0;
+
+#if defined(DEBUG_CATALOG) || defined(DEBUG_ALL)
+	hfs_warn("hfs_cat_delete: %p/%p type=%d state=%lu, thread=%d\n",
+		 parent, entry, entry->type, entry->state, with_thread);
+#endif
+	if (parent->mdb != entry->mdb) {
+		return -EINVAL;
+	}
+
+	if (entry->type == HFS_CDR_FIL) {
+		with_thread = (entry->u.file.flags&HFS_FIL_THD) && with_thread;
+		is_dir = 0;
+	} else {
+		is_dir = 1;
+	}
+
+	/* keep readers from getting confused by changing dir size */
+	start_write(parent);
+
+	/* don't delete a busy directory */
+	if (entry->type == HFS_CDR_DIR) {
+		start_read(entry);
+
+		error = -ENOTEMPTY;
+		if (entry->u.dir.files || entry->u.dir.dirs) 
+			goto hfs_delete_end;
+	}
+
+	/* try to delete the file or directory */
+	lock_entry(entry);
+	error = -ENOENT;
+	if ((entry->state & HFS_DELETED)) {
+		/* somebody beat us to it. */
+		goto hfs_delete_unlock;
+	}
+		
+	/* delete the catalog record */
+	if ((error = hfs_bdelete(mdb->cat_tree, HFS_BKEY(&entry->key)))) {
+		goto hfs_delete_unlock;
+	}
+
+	/* Mark the entry deleted and remove it from the cache */
+	delete_entry(entry);
+
+	/* try to delete the thread entry if it exists */
+	if (with_thread) {
+		hfs_cat_build_key(entry->cnid, NULL, &key);
+		(void)hfs_bdelete(mdb->cat_tree, HFS_BKEY(&key));
+	}
+	
+	update_dir(mdb, parent, is_dir, -1);
+
+hfs_delete_unlock:
+	unlock_entry(entry);
+
+hfs_delete_end:
+	if (entry->type == HFS_CDR_DIR) {
+		end_read(entry);
+	}
+	end_write(parent);
+	return error;
+}
+
+/*
+ * hfs_cat_move()
+ *
+ * Rename a file or directory, possibly to a new directory.
+ * If the destination exists it is removed and a
+ * (struct hfs_cat_entry) for it is returned in '*result'.
+ */
+int hfs_cat_move(struct hfs_cat_entry *old_dir, struct hfs_cat_entry *new_dir,
+		 struct hfs_cat_entry *entry, struct hfs_cat_key *new_key,
+		 struct hfs_cat_entry **removed)
+{
+	struct hfs_cat_entry *dest;
+	struct hfs_mdb *mdb;
+	int error = 0;
+	int is_dir, has_thread;
+
+	if (removed) {
+		*removed = NULL;
+	}
+
+	/* sanity checks */
+	if (!old_dir || !new_dir) {
+		return -EINVAL;
+	}
+	mdb = old_dir->mdb;
+	if (mdb != new_dir->mdb) {
+		return -EXDEV;
+	}
+
+	/* precompute a few things */
+	if (entry->type == HFS_CDR_DIR) {
+		is_dir = 1;
+		has_thread = 1;
+	} else if (entry->type == HFS_CDR_FIL) {
+		is_dir = 0;
+		has_thread = entry->u.file.flags & HFS_FIL_THD;
+	} else {
+		return -EINVAL;
+	}
+
+	while (mdb->rename_lock) {
+		hfs_sleep_on(&mdb->rename_wait);
+	}
+	spin_lock(&entry_lock);
+	mdb->rename_lock = 1; /* XXX: should be atomic_inc */
+	spin_unlock(&entry_lock);
+
+	/* keep readers from getting confused by changing dir size */
+	start_write(new_dir);
+	if (old_dir != new_dir) {
+		start_write(old_dir);
+	}
+
+	/* Don't move a directory inside itself */
+	if (is_dir) {
+		struct hfs_cat_key thd_key;
+		struct hfs_brec brec;
+
+		hfs_u32 id = new_dir->cnid;
+		while (id != htonl(HFS_ROOT_CNID)) {
+			if (id == entry->cnid) {
+				error = -EINVAL;
+			} else {
+				hfs_cat_build_key(id, NULL, &thd_key);
+				error = hfs_bfind(&brec, mdb->cat_tree,
+						  HFS_BKEY(&thd_key),
+						  HFS_BFIND_READ_EQ);
+			}
+			if (error) {
+				goto done;
+			} else {
+				struct hfs_cat_rec *rec = brec.data;
+				id = hfs_get_nl(rec->u.thd.ParID);
+				hfs_brec_relse(&brec, NULL);
+			}
+		}
+	}
+
+restart:
+	/* see if the destination exists, getting it if it does */
+	dest = hfs_cat_get(mdb, new_key);
+	if (!dest) {
+		/* destination doesn't exist, so create it */
+		struct hfs_cat_rec new_record;
+
+		/* create a locked entry in the cache */
+		dest = get_entry(mdb, new_key, 0);
+		if (!dest) {
+			error = -EIO;
+			goto done;
+		}
+		if (dest->cnid) {
+			/* The (unlocked) entry exists in the cache */
+			goto have_distinct;
+		}
+
+		/* limit directory valence to signed 16-bit integer */
+        	if ((new_dir->u.dir.dirs + new_dir->u.dir.files) >=
+							HFS_MAX_VALENCE) {
+			error = -ENOSPC;
+			goto bail3;
+		}
+
+		/* build the new record. make sure to zero out the
+                   record. */
+		memset(&new_record, 0, sizeof(new_record));
+		new_record.cdrType = entry->type;
+		__write_entry(entry, &new_record);
+
+		/* insert the new record */
+		error = hfs_binsert(mdb->cat_tree, HFS_BKEY(new_key),
+				    &new_record, is_dir ? 2 + sizeof(DIR_REC) :
+				    2 + sizeof(FIL_REC));
+		if (error == -EEXIST) {
+			delete_entry(dest);
+			unlock_entry(dest);
+			hfs_cat_put(dest);
+			goto restart;
+		} else if (error) {
+			goto bail3;
+		}
+
+		/* update the destination directory */
+		update_dir(mdb, new_dir, is_dir, 1);
+	} else if (entry != dest) {
+have_distinct:
+		/* The destination exists and is not same as source */
+		lock_entry(dest);
+		if ((dest->state & HFS_DELETED)) {
+		        unlock_entry(dest);
+			hfs_cat_put(dest);
+			goto restart;
+		}
+		if (dest->type != entry->type) {
+			/* can't move a file on top
+			   of a dir nor vice versa. */
+			error = is_dir ? -ENOTDIR : -EISDIR;
+		} else if (is_dir && (dest->u.dir.dirs || dest->u.dir.files)) {
+			/* directory to replace is not empty */
+			error = -ENOTEMPTY;
+		}
+
+		if (error) {
+			goto bail2;
+		}
+	} else {
+		/* The destination exists but is same as source */
+	        --entry->count;
+		dest = NULL;
+	}
+
+	/* lock the entry */
+	lock_entry(entry);
+	if ((entry->state & HFS_DELETED)) {
+		error = -ENOENT;
+		goto bail1;
+	}
+
+	if (dest) {
+		/* remove the old entry */
+		error = hfs_bdelete(mdb->cat_tree, HFS_BKEY(&entry->key));
+
+		if (error) {
+			/* We couldn't remove the entry for the
+			   original file, so nothing has changed. */
+			goto bail1;
+		}
+		update_dir(mdb, old_dir, is_dir, -1);
+	}
+
+	/* update the thread of the dir/file we're moving */
+	if (has_thread) {
+		struct hfs_cat_key thd_key;
+		struct hfs_brec brec;
+
+		hfs_cat_build_key(entry->cnid, NULL, &thd_key);
+		error = hfs_bfind(&brec, mdb->cat_tree,
+				  HFS_BKEY(&thd_key), HFS_BFIND_WRITE);
+		if (error == -ENOENT) {
+			if (is_dir) {
+				/* directory w/o a thread! */
+				error = -EIO;
+			} else {
+				/* We were lied to! */
+				entry->u.file.flags &= ~HFS_FIL_THD;
+				hfs_cat_mark_dirty(entry);
+			}
+		}
+		if (!error) {
+			struct hfs_cat_rec *rec = brec.data;
+			memcpy(&rec->u.thd.ParID, &new_key->ParID,
+			       sizeof(hfs_u32) + sizeof(struct hfs_name));
+			hfs_brec_relse(&brec, NULL);
+		} else if (error == -ENOENT) {
+			error = 0;
+		} else if (!dest) {
+			/* Nothing was changed */
+			unlock_entry(entry);
+			goto done;
+		} else {
+			/* Something went seriously wrong.
+			   The dir/file has been deleted. */
+			/* XXX try some recovery? */
+			delete_entry(entry);
+			goto bail1;
+		}
+	}
+
+	/* TRY to remove the thread for the pre-existing entry */
+	if (dest && dest->cnid &&
+	    (is_dir || (dest->u.file.flags & HFS_FIL_THD))) {
+		struct hfs_cat_key thd_key;
+
+		hfs_cat_build_key(dest->cnid, NULL, &thd_key);
+		(void)hfs_bdelete(mdb->cat_tree, HFS_BKEY(&thd_key));
+	}
+
+	/* update directories */
+	new_dir->modify_date = hfs_time();
+	hfs_cat_mark_dirty(new_dir);
+
+	/* update key */
+	remove_hash(entry);
+	memcpy(&entry->key, new_key, sizeof(*new_key));
+	/* KEYDIRTY as case might differ */
+	entry->state |= HFS_KEYDIRTY;
+	insert_hash(entry);
+	hfs_cat_mark_dirty(entry);
+	unlock_entry(entry);
+
+	/* delete any pre-existing or place-holder entry */
+	if (dest) {
+		delete_entry(dest);
+		unlock_entry(dest);
+		if (removed && dest->cnid) {
+			*removed = dest;
+		} else {
+			hfs_cat_put(dest);
+		}
+	}
+	goto done;
+
+bail1:
+	unlock_entry(entry);
+bail2:
+	if (dest) {
+		if (!dest->cnid) {
+			/* TRY to remove the new entry */
+			(void)hfs_bdelete(mdb->cat_tree, HFS_BKEY(new_key));
+			update_dir(mdb, new_dir, is_dir, -1);
+bail3:
+			delete_entry(dest);
+		}
+		unlock_entry(dest);
+		hfs_cat_put(dest);
+	}
+done:
+	if (new_dir != old_dir) {
+		end_write(old_dir);
+	}
+	end_write(new_dir);
+	spin_lock(&entry_lock);
+	mdb->rename_lock = 0; /* XXX: should use atomic_dec */
+	hfs_wake_up(&mdb->rename_wait);
+	spin_unlock(&entry_lock);
+
+	return error;
+}
+
+/*
+ * Initialize the hash tables
+ */
+void hfs_cat_init(void)
+{
+	int i;
+	struct list_head *head = hash_table;
+
+        i = C_HASHSIZE;
+        do {
+                INIT_LIST_HEAD(head);
+                head++;
+                i--;
+        } while (i);
+}
diff --git a/fs/hfs/dir.c b/fs/hfs/dir.c
new file mode 100644
index 00000000000000..4f35c2760d73b6
--- /dev/null
+++ b/fs/hfs/dir.c
@@ -0,0 +1,394 @@
+/*
+ * linux/fs/hfs/dir.c
+ *
+ * Copyright (C) 1995-1997  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * This file contains directory-related functions independent of which
+ * scheme is being used to represent forks.
+ *
+ * Based on the minix file system code, (C) 1991, 1992 by Linus Torvalds
+ *
+ * "XXX" in a comment is a note to myself to consider changing something.
+ *
+ * In function preconditions the term "valid" applied to a pointer to
+ * a structure means that the pointer is non-NULL and the structure it
+ * points to has all fields initialized to consistent values.
+ */
+
+#include "hfs.h"
+#include <linux/hfs_fs_sb.h>
+#include <linux/hfs_fs_i.h>
+#include <linux/hfs_fs.h>
+
+/*================ File-local functions ================*/
+
+/*
+ * build_key()
+ *
+ * Build a key for a file by the given name in the given directory.
+ * If the name matches one of the reserved names returns 1 otherwise 0.
+ */
+static int build_key(struct hfs_cat_key *key, struct inode *dir,
+		     const char *name, int len)
+{
+	struct hfs_name cname;
+	const struct hfs_name *reserved;
+
+	/* mangle the name */
+	hfs_nameout(dir, &cname, name, len);
+
+	/* check against reserved names */
+	reserved = HFS_SB(dir->i_sb)->s_reserved1;
+	while (reserved->Len) {
+		if (hfs_streq(reserved->Name, reserved->Len, 
+			      cname.Name, cname.Len)) {
+			return 1;
+		}
+		++reserved;
+	}
+
+	/* check against the names reserved only in the root directory */
+	if (HFS_I(dir)->entry->cnid == htonl(HFS_ROOT_CNID)) {
+		reserved = HFS_SB(dir->i_sb)->s_reserved2;
+		while (reserved->Len) {
+			if (hfs_streq(reserved->Name, reserved->Len,
+				      cname.Name, cname.Len)) {
+				return 1;
+			}
+			++reserved;
+		}
+	}
+
+	/* build the key */
+	hfs_cat_build_key(HFS_I(dir)->entry->cnid, &cname, key);
+
+	return 0;
+}
+
+/*
+ * update_dirs_plus()
+ *
+ * Update the fields 'i_size', 'i_nlink', 'i_ctime', 'i_mtime' and
+ * 'i_version' of the inodes associated with a directory that has
+ * had a file ('is_dir'==0) or directory ('is_dir'!=0) added to it.
+ */
+static inline void update_dirs_plus(struct hfs_cat_entry *dir, int is_dir)
+{
+	int i;
+
+	for (i = 0; i < 4; ++i) {
+		struct dentry *de = dir->sys_entry[i];
+		if (de) {
+		        struct inode *tmp = de->d_inode;
+			if (S_ISDIR(tmp->i_mode)) {
+				if (is_dir &&
+				    (i == HFS_ITYPE_TO_INT(HFS_ITYPE_NORM))) {
+					/* In "normal" directory only */
+					++(tmp->i_nlink);
+				}
+				tmp->i_size += HFS_I(tmp)->dir_size;
+				tmp->i_version = ++event;
+			}
+			tmp->i_ctime = tmp->i_mtime = CURRENT_TIME;
+			mark_inode_dirty(tmp);
+		}
+	}
+}
+
+/*
+ * update_dirs_minus()
+ *
+ * Update the fields 'i_size', 'i_nlink', 'i_ctime', 'i_mtime' and
+ * 'i_version' of the inodes associated with a directory that has
+ * had a file ('is_dir'==0) or directory ('is_dir'!=0) removed.
+ */
+static inline void update_dirs_minus(struct hfs_cat_entry *dir, int is_dir)
+{
+	int i;
+
+	for (i = 0; i < 4; ++i) {
+		struct dentry *de = dir->sys_entry[i];
+		if (de) {
+		        struct inode *tmp = de->d_inode;
+			if (S_ISDIR(tmp->i_mode)) {
+				if (is_dir &&
+				    (i == HFS_ITYPE_TO_INT(HFS_ITYPE_NORM))) {
+					/* In "normal" directory only */
+					--(tmp->i_nlink);
+				}
+				tmp->i_size -= HFS_I(tmp)->dir_size;
+				tmp->i_version = ++event;
+			}
+			tmp->i_ctime = tmp->i_mtime = CURRENT_TIME;
+			mark_inode_dirty(tmp);
+		}
+	}
+}
+
+/*
+ * mark_inodes_deleted()
+ *
+ * Update inodes associated with a deleted entry to reflect its deletion.
+ * Well, we really just drop the dentry.
+ *
+ * XXX: we should be using delete_inode for some of this stuff.
+ */
+static inline void mark_inodes_deleted(struct hfs_cat_entry *entry, 
+				       struct dentry *dentry)
+{
+	struct dentry *de;
+	struct inode *tmp;
+	int i;
+
+	for (i = 0; i < 4; ++i) {
+		if ((de = entry->sys_entry[i]) && (dentry != de)) {
+		      dget(de);
+		      tmp = de->d_inode;
+		      tmp->i_nlink = 0;
+		      tmp->i_ctime = CURRENT_TIME;
+		      mark_inode_dirty(tmp);
+		      d_delete(de);
+		      dput(de);
+		}
+	}
+}
+
+/*================ Global functions ================*/
+
+/*
+ * hfs_create()
+ *
+ * This is the create() entry in the inode_operations structure for
+ * regular HFS directories.  The purpose is to create a new file in
+ * a directory and return a corresponding inode, given the inode for
+ * the directory and the name (and its length) of the new file.
+ */
+int hfs_create(struct inode * dir, struct dentry *dentry, int mode)
+{
+	struct hfs_cat_entry *entry = HFS_I(dir)->entry;
+	struct hfs_cat_entry *new;
+	struct hfs_cat_key key;
+	struct inode *inode;
+	int error;
+
+	/* build the key, checking against reserved names */
+	if (build_key(&key, dir, dentry->d_name.name, dentry->d_name.len)) 
+		return -EEXIST;
+
+	if ((error = hfs_cat_create(entry, &key, 
+			       (mode & S_IWUSR) ? 0 : HFS_FIL_LOCK,
+			       HFS_SB(dir->i_sb)->s_type,
+			       HFS_SB(dir->i_sb)->s_creator, &new)))
+		return error;
+
+	/* create an inode for the new file. back out if we run
+	 * into trouble. */
+	new->count++; /* hfs_iget() eats one */
+	if (!(inode = hfs_iget(new, HFS_I(dir)->file_type, dentry))) {
+		hfs_cat_delete(entry, new, 1);
+		hfs_cat_put(new);
+		return -EIO;
+	}
+
+	hfs_cat_put(new);
+	update_dirs_plus(entry, 0);
+	/* toss any relevant negative dentries */
+	if (HFS_I(dir)->d_drop_op)
+		HFS_I(dir)->d_drop_op(dentry, HFS_I(dir)->file_type);
+	mark_inode_dirty(inode);
+	d_instantiate(dentry, inode);
+	return 0;
+}
+
+/*
+ * hfs_mkdir()
+ *
+ * This is the mkdir() entry in the inode_operations structure for
+ * regular HFS directories.  The purpose is to create a new directory
+ * in a directory, given the inode for the parent directory and the
+ * name (and its length) of the new directory.
+ */
+int hfs_mkdir(struct inode * parent, struct dentry *dentry, int mode)
+{
+	struct hfs_cat_entry *entry = HFS_I(parent)->entry;
+	struct hfs_cat_entry *new;
+	struct hfs_cat_key key;
+	struct inode *inode;
+	int error;
+
+	/* build the key, checking against reserved names */
+	if (build_key(&key, parent, dentry->d_name.name, 
+		      dentry->d_name.len)) 
+		return -EEXIST;
+
+	/* try to create the directory */
+	if ((error = hfs_cat_mkdir(entry, &key, &new)))
+		return error;
+
+	/* back out if we run into trouble */
+	new->count++; /* hfs_iget eats one */
+	if (!(inode = hfs_iget(new, HFS_I(parent)->file_type, dentry))) {
+		hfs_cat_delete(entry, new, 1);
+		hfs_cat_put(new);
+		return -EIO;
+	}
+
+	hfs_cat_put(new);
+	update_dirs_plus(entry, 1);
+	mark_inode_dirty(inode);
+	d_instantiate(dentry, inode);
+	return 0;
+}
+
+/*
+ * hfs_unlink()
+ *
+ * This is the unlink() entry in the inode_operations structure for
+ * regular HFS directories.  The purpose is to delete an existing
+ * file, given the inode for the parent directory and the name
+ * (and its length) of the existing file.
+ */
+int hfs_unlink(struct inode * dir, struct dentry *dentry)
+{
+	struct hfs_cat_entry *entry = HFS_I(dir)->entry;
+	struct hfs_cat_entry *victim = NULL;
+	struct hfs_cat_key key;
+	int error;
+
+	if (build_key(&key, dir, dentry->d_name.name,
+		      dentry->d_name.len)) 
+		return -EPERM;
+
+	if (!(victim = hfs_cat_get(entry->mdb, &key))) 
+		return -ENOENT;
+
+	error = -EPERM;
+	if (victim->type != HFS_CDR_FIL)
+		goto hfs_unlink_put;
+
+	if (!(error = hfs_cat_delete(entry, victim, 1))) {
+		struct inode *inode = dentry->d_inode;
+
+		mark_inodes_deleted(victim, dentry);
+		inode->i_nlink--; 
+		inode->i_ctime = CURRENT_TIME;
+		mark_inode_dirty(inode);
+		update_dirs_minus(entry, 0);
+	}
+
+hfs_unlink_put:
+	hfs_cat_put(victim);	/* Note that hfs_cat_put(NULL) is safe. */
+	return error;
+}
+
+/*
+ * hfs_rmdir()
+ *
+ * This is the rmdir() entry in the inode_operations structure for
+ * regular HFS directories.  The purpose is to delete an existing
+ * directory, given the inode for the parent directory and the name
+ * (and its length) of the existing directory.
+ */
+int hfs_rmdir(struct inode * parent, struct dentry *dentry)
+{
+	struct hfs_cat_entry *entry = HFS_I(parent)->entry;
+	struct hfs_cat_entry *victim = NULL;
+	struct inode *inode = dentry->d_inode;
+	struct hfs_cat_key key;
+	int error;
+
+	if (build_key(&key, parent, dentry->d_name.name,
+		      dentry->d_name.len))
+		return -EPERM;
+
+	if (!(victim = hfs_cat_get(entry->mdb, &key)))
+		return -ENOENT;
+
+	error = -ENOTDIR;
+	if (victim->type != HFS_CDR_DIR) 
+		goto hfs_rmdir_put;
+
+	error = -EBUSY;
+	if (!d_unhashed(dentry))
+		goto hfs_rmdir_put;
+
+	/* we only have to worry about 2 and 3 for mount points */
+	if (victim->sys_entry[2] && d_mountpoint(victim->sys_entry[2]))
+		goto hfs_rmdir_put;
+	if (victim->sys_entry[3] && d_mountpoint(victim->sys_entry[3])) 
+		goto hfs_rmdir_put;
+
+	
+	if ((error = hfs_cat_delete(entry, victim, 1)))
+		goto hfs_rmdir_put;
+
+	mark_inodes_deleted(victim, dentry);
+	inode->i_nlink = 0;
+	inode->i_ctime = CURRENT_TIME;
+	mark_inode_dirty(inode);
+	update_dirs_minus(entry, 1);
+	 
+hfs_rmdir_put:
+	hfs_cat_put(victim);	/* Note that hfs_cat_put(NULL) is safe. */
+	return error;
+}
+
+/*
+ * hfs_rename()
+ *
+ * This is the rename() entry in the inode_operations structure for
+ * regular HFS directories.  The purpose is to rename an existing
+ * file or directory, given the inode for the current directory and
+ * the name (and its length) of the existing file/directory and the
+ * inode for the new directory and the name (and its length) of the
+ * new file/directory.
+ * XXX: how do you handle must_be dir?
+ */
+int hfs_rename(struct inode *old_dir, struct dentry *old_dentry,
+	       struct inode *new_dir, struct dentry *new_dentry)
+{
+	struct hfs_cat_entry *old_parent = HFS_I(old_dir)->entry;
+	struct hfs_cat_entry *new_parent = HFS_I(new_dir)->entry;
+	struct hfs_cat_entry *victim = NULL;
+	struct hfs_cat_entry *deleted;
+	struct hfs_cat_key key;
+	int error;
+
+	if (build_key(&key, old_dir, old_dentry->d_name.name,
+		      old_dentry->d_name.len) ||
+	    (HFS_ITYPE(old_dir->i_ino) != HFS_ITYPE(new_dir->i_ino))) 
+		return -EPERM;
+
+	if (!(victim = hfs_cat_get(old_parent->mdb, &key))) 
+		return -ENOENT;
+
+	error = -EPERM;
+	if (build_key(&key, new_dir, new_dentry->d_name.name,
+			     new_dentry->d_name.len)) 
+		goto hfs_rename_put;
+
+	if (!(error = hfs_cat_move(old_parent, new_parent,
+				   victim, &key, &deleted))) {
+		int is_dir = (victim->type == HFS_CDR_DIR);
+		
+		/* drop the old dentries */
+		mark_inodes_deleted(victim, old_dentry);
+		update_dirs_minus(old_parent, is_dir);
+		if (deleted) {
+			mark_inodes_deleted(deleted, new_dentry);
+			hfs_cat_put(deleted);
+		} else {
+			/* no existing inodes. just drop negative dentries */
+			if (HFS_I(new_dir)->d_drop_op) 
+				HFS_I(new_dir)->d_drop_op(new_dentry, 
+					  HFS_I(new_dir)->file_type);
+			update_dirs_plus(new_parent, is_dir);
+		}
+	
+	}
+
+hfs_rename_put:
+	hfs_cat_put(victim);	/* Note that hfs_cat_put(NULL) is safe. */
+	return error;
+}
diff --git a/fs/hfs/dir_cap.c b/fs/hfs/dir_cap.c
new file mode 100644
index 00000000000000..3c000cdd53f9cb
--- /dev/null
+++ b/fs/hfs/dir_cap.c
@@ -0,0 +1,327 @@
+/*
+ * Copyright (C) 1995-1997  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * This file contains the inode_operations and file_operations
+ * structures for HFS directories under the CAP scheme.
+ *
+ * Based on the minix file system code, (C) 1991, 1992 by Linus Torvalds
+ *
+ * The source code distribution of the Columbia AppleTalk Package for
+ * UNIX, version 6.0, (CAP) was used as a specification of the
+ * location and format of files used by CAP's Aufs.  No code from CAP
+ * appears in hfs_fs.  hfs_fs is not a work ``derived'' from CAP in
+ * the sense of intellectual property law.
+ *
+ * "XXX" in a comment is a note to myself to consider changing something.
+ *
+ * In function preconditions the term "valid" applied to a pointer to
+ * a structure means that the pointer is non-NULL and the structure it
+ * points to has all fields initialized to consistent values.
+ */
+
+#include "hfs.h"
+#include <linux/hfs_fs_sb.h>
+#include <linux/hfs_fs_i.h>
+#include <linux/hfs_fs.h>
+
+/*================ Forward declarations ================*/
+
+static struct dentry *cap_lookup(struct inode *, struct dentry *);
+static int cap_readdir(struct file *, void *, filldir_t);
+
+/*================ Global variables ================*/
+
+#define DOT_LEN			1
+#define DOT_DOT_LEN		2
+#define DOT_RESOURCE_LEN	9
+#define DOT_FINDERINFO_LEN	11
+#define DOT_ROOTINFO_LEN	9
+
+const struct hfs_name hfs_cap_reserved1[] = {
+	{DOT_LEN,		"."},
+	{DOT_DOT_LEN,		".."},
+	{DOT_RESOURCE_LEN,	".resource"},
+	{DOT_FINDERINFO_LEN,	".finderinfo"},
+	{0,			""},
+};
+
+const struct hfs_name hfs_cap_reserved2[] = {
+	{DOT_ROOTINFO_LEN,	".rootinfo"},
+	{0,			""},
+};
+
+#define DOT		(&hfs_cap_reserved1[0])
+#define DOT_DOT		(&hfs_cap_reserved1[1])
+#define DOT_RESOURCE	(&hfs_cap_reserved1[2])
+#define DOT_FINDERINFO	(&hfs_cap_reserved1[3])
+#define DOT_ROOTINFO	(&hfs_cap_reserved2[0])
+
+struct file_operations hfs_cap_dir_operations = {
+	read:		generic_read_dir,
+	readdir:	cap_readdir,
+	fsync:		file_fsync,
+};
+
+struct inode_operations hfs_cap_ndir_inode_operations = {
+	create:		hfs_create,
+	lookup:		cap_lookup,
+	unlink:		hfs_unlink,
+	mkdir:		hfs_mkdir,
+	rmdir:		hfs_rmdir,
+	rename:		hfs_rename,
+	setattr:	hfs_notify_change,
+};
+
+struct inode_operations hfs_cap_fdir_inode_operations = {
+	lookup:		cap_lookup,
+	setattr:	hfs_notify_change,
+};
+
+struct inode_operations hfs_cap_rdir_inode_operations = {
+	create:		hfs_create,
+	lookup:		cap_lookup,
+	setattr:	hfs_notify_change,
+};
+
+/*================ File-local functions ================*/
+
+/*
+ * cap_lookup()
+ *
+ * This is the lookup() entry in the inode_operations structure for
+ * HFS directories in the CAP scheme.  The purpose is to generate the
+ * inode corresponding to an entry in a directory, given the inode for
+ * the directory and the name (and its length) of the entry.
+ */
+static struct dentry *cap_lookup(struct inode * dir, struct dentry *dentry)
+{
+	ino_t dtype;
+	struct hfs_name cname;
+	struct hfs_cat_entry *entry;
+	struct hfs_cat_key key;
+	struct inode *inode = NULL;
+
+	dentry->d_op = &hfs_dentry_operations;
+	entry = HFS_I(dir)->entry;
+	dtype = HFS_ITYPE(dir->i_ino);
+
+	/* Perform name-mangling */
+	hfs_nameout(dir, &cname, dentry->d_name.name, 
+		    dentry->d_name.len);
+
+	/* no need to check for "."  or ".." */
+
+	/* Check for special directories if in a normal directory.
+	   Note that cap_dupdir() does an iput(dir). */
+	if (dtype==HFS_CAP_NDIR) {
+		/* Check for ".resource", ".finderinfo" and ".rootinfo" */
+		if (hfs_streq(cname.Name, cname.Len, 
+			      DOT_RESOURCE->Name, DOT_RESOURCE_LEN)) {
+			++entry->count; /* __hfs_iget() eats one */
+			inode = hfs_iget(entry, HFS_CAP_RDIR, dentry);
+			goto done;
+		} else if (hfs_streq(cname.Name, cname.Len, 
+				     DOT_FINDERINFO->Name, 
+				     DOT_FINDERINFO_LEN)) {
+			++entry->count; /* __hfs_iget() eats one */
+			inode = hfs_iget(entry, HFS_CAP_FDIR, dentry);
+			goto done;
+		} else if ((entry->cnid == htonl(HFS_ROOT_CNID)) &&
+			   hfs_streq(cname.Name, cname.Len, 
+				     DOT_ROOTINFO->Name, DOT_ROOTINFO_LEN)) {
+			++entry->count; /* __hfs_iget() eats one */
+			inode = hfs_iget(entry, HFS_CAP_FNDR, dentry);
+			goto done;
+		}
+	}
+
+	/* Do an hfs_iget() on the mangled name. */
+	hfs_cat_build_key(entry->cnid, &cname, &key);
+	inode = hfs_iget(hfs_cat_get(entry->mdb, &key),
+			 HFS_I(dir)->file_type, dentry);
+
+	/* Don't return a resource fork for a directory */
+	if (inode && (dtype == HFS_CAP_RDIR) && 
+	    (HFS_I(inode)->entry->type == HFS_CDR_DIR)) {
+	        iput(inode); /* this does an hfs_cat_put */
+		inode = NULL;
+	}
+
+done:
+	d_add(dentry, inode);
+	return NULL;
+}
+
+/*
+ * cap_readdir()
+ *
+ * This is the readdir() entry in the file_operations structure for
+ * HFS directories in the CAP scheme.  The purpose is to enumerate the
+ * entries in a directory, given the inode of the directory and a
+ * (struct file *), the 'f_pos' field of which indicates the location
+ * in the directory.  The (struct file *) is updated so that the next
+ * call with the same 'dir' and 'filp' arguments will produce the next
+ * directory entry.  The entries are returned in 'dirent', which is
+ * "filled-in" by calling filldir().  This allows the same readdir()
+ * function be used for different dirent formats.  We try to read in
+ * as many entries as we can before filldir() refuses to take any more.
+ *
+ * XXX: In the future it may be a good idea to consider not generating
+ * metadata files for covered directories since the data doesn't
+ * correspond to the mounted directory.	 However this requires an
+ * iget() for every directory which could be considered an excessive
+ * amount of overhead.	Since the inode for a mount point is always
+ * in-core this is another argument for a call to get an inode if it
+ * is in-core or NULL if it is not.
+ */
+static int cap_readdir(struct file * filp,
+		       void * dirent, filldir_t filldir)
+{
+	ino_t type;
+	int skip_dirs;
+	struct hfs_brec brec;
+        struct hfs_cat_entry *entry;
+	struct inode *dir = filp->f_dentry->d_inode;
+
+	entry = HFS_I(dir)->entry;
+	type = HFS_ITYPE(dir->i_ino);
+	skip_dirs = (type == HFS_CAP_RDIR);
+
+	if (filp->f_pos == 0) {
+		/* Entry 0 is for "." */
+		if (filldir(dirent, DOT->Name, DOT_LEN, 0, dir->i_ino, DT_DIR)) {
+			return 0;
+		}
+		filp->f_pos = 1;
+	}
+
+	if (filp->f_pos == 1) {
+		/* Entry 1 is for ".." */
+		hfs_u32 cnid;
+
+		if (type == HFS_CAP_NDIR) {
+			cnid = hfs_get_nl(entry->key.ParID);
+		} else {
+			cnid = entry->cnid;
+		}
+
+		if (filldir(dirent, DOT_DOT->Name,
+			    DOT_DOT_LEN, 1, ntohl(cnid), DT_DIR)) {
+			return 0;
+		}
+		filp->f_pos = 2;
+	}
+
+	if (filp->f_pos < (dir->i_size - 3)) {
+		hfs_u32 cnid;
+		hfs_u8 type;
+
+	    	if (hfs_cat_open(entry, &brec) ||
+	    	    hfs_cat_next(entry, &brec, filp->f_pos - 2, &cnid, &type)) {
+			return 0;
+		}
+		while (filp->f_pos < (dir->i_size - 3)) {
+			if (hfs_cat_next(entry, &brec, 1, &cnid, &type)) {
+				return 0;
+			}
+			if (!skip_dirs || (type != HFS_CDR_DIR)) {
+				ino_t ino;
+				unsigned int len;
+				unsigned char tmp_name[HFS_NAMEMAX];
+
+				ino = ntohl(cnid) | HFS_I(dir)->file_type;
+				len = hfs_namein(dir, tmp_name,
+				    &((struct hfs_cat_key *)brec.key)->CName);
+				if (filldir(dirent, tmp_name, len,
+					    filp->f_pos, ino, DT_UNKNOWN)) {
+					hfs_cat_close(entry, &brec);
+					return 0;
+				}
+			}
+			++filp->f_pos;
+		}
+		hfs_cat_close(entry, &brec);
+	}
+
+	if (filp->f_pos == (dir->i_size - 3)) {
+		if ((entry->cnid == htonl(HFS_ROOT_CNID)) &&
+		    (type == HFS_CAP_NDIR)) {
+			/* In root dir last-2 entry is for ".rootinfo" */
+			if (filldir(dirent, DOT_ROOTINFO->Name,
+				    DOT_ROOTINFO_LEN, filp->f_pos,
+				    ntohl(entry->cnid) | HFS_CAP_FNDR,
+				    DT_UNKNOWN)) {
+				return 0;
+			}
+		}
+		++filp->f_pos;
+	}
+
+	if (filp->f_pos == (dir->i_size - 2)) {
+		if (type == HFS_CAP_NDIR) {
+			/* In normal dirs last-1 entry is for ".finderinfo" */
+			if (filldir(dirent, DOT_FINDERINFO->Name,
+				    DOT_FINDERINFO_LEN, filp->f_pos,
+				    ntohl(entry->cnid) | HFS_CAP_FDIR,
+				    DT_UNKNOWN)) {
+				return 0;
+			}
+		}
+		++filp->f_pos;
+	}
+
+	if (filp->f_pos == (dir->i_size - 1)) {
+		if (type == HFS_CAP_NDIR) {
+			/* In normal dirs last entry is for ".resource" */
+			if (filldir(dirent, DOT_RESOURCE->Name,
+				    DOT_RESOURCE_LEN, filp->f_pos,
+				    ntohl(entry->cnid) | HFS_CAP_RDIR,
+				    DT_UNKNOWN)) {
+				return 0;
+			}
+		}
+		++filp->f_pos;
+	}
+
+	return 0;
+}
+
+
+/* due to the dcache caching negative dentries for non-existent files,
+ * we need to drop those entries when a file silently gets created.
+ * as far as i can tell, the calls that need to do this are the file
+ * related calls (create, rename, and mknod). the directory calls
+ * should be immune. the relevant calls in dir.c call drop_dentry 
+ * upon successful completion. */
+void hfs_cap_drop_dentry(struct dentry *dentry, const ino_t type)
+{
+  if (type == HFS_CAP_DATA) { /* given name */
+    hfs_drop_special(dentry->d_parent, DOT_FINDERINFO, dentry);
+    hfs_drop_special(dentry->d_parent, DOT_RESOURCE, dentry);
+  } else {
+    struct dentry *de;
+
+    /* given {.resource,.finderinfo}/name, look for name */
+    if ((de = hfs_lookup_dentry(dentry->d_parent->d_parent,
+				dentry->d_name.name, dentry->d_name.len))) {
+      if (!de->d_inode)
+	d_drop(de);
+      dput(de);
+    }
+    
+    switch (type) {
+    case HFS_CAP_RSRC: /* given .resource/name */
+       /* look for .finderinfo/name */
+      hfs_drop_special(dentry->d_parent->d_parent, DOT_FINDERINFO, 
+		       dentry);
+      break;
+    case HFS_CAP_FNDR: /* given .finderinfo/name. i don't this 
+			* happens. */
+      /* look for .resource/name */
+      hfs_drop_special(dentry->d_parent->d_parent, DOT_RESOURCE, 
+		       dentry);
+      break;
+    }
+  }
+}
diff --git a/fs/hfs/dir_dbl.c b/fs/hfs/dir_dbl.c
new file mode 100644
index 00000000000000..8b7f876c312a6a
--- /dev/null
+++ b/fs/hfs/dir_dbl.c
@@ -0,0 +1,404 @@
+/*
+ * linux/fs/hfs/dir_dbl.c
+ *
+ * Copyright (C) 1995-1997  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * This file contains the inode_operations and file_operations
+ * structures for HFS directories.
+ *
+ * Based on the minix file system code, (C) 1991, 1992 by Linus Torvalds
+ *
+ * "XXX" in a comment is a note to myself to consider changing something.
+ *
+ * In function preconditions the term "valid" applied to a pointer to
+ * a structure means that the pointer is non-NULL and the structure it
+ * points to has all fields initialized to consistent values.
+ */
+
+#include "hfs.h"
+#include <linux/hfs_fs_sb.h>
+#include <linux/hfs_fs_i.h>
+#include <linux/hfs_fs.h>
+
+/*================ Forward declarations ================*/
+
+static struct dentry *dbl_lookup(struct inode *, struct dentry *);
+static int dbl_readdir(struct file *, void *, filldir_t);
+static int dbl_create(struct inode *, struct dentry *, int);
+static int dbl_mkdir(struct inode *, struct dentry *, int);
+static int dbl_unlink(struct inode *, struct dentry *);
+static int dbl_rmdir(struct inode *, struct dentry *);
+static int dbl_rename(struct inode *, struct dentry *,
+		      struct inode *, struct dentry *);
+
+/*================ Global variables ================*/
+
+#define DOT_LEN			1
+#define DOT_DOT_LEN		2
+#define ROOTINFO_LEN		8
+#define PCNT_ROOTINFO_LEN	9
+
+const struct hfs_name hfs_dbl_reserved1[] = {
+	{DOT_LEN,		"."},
+	{DOT_DOT_LEN,		".."},
+	{0,			""},
+};
+
+const struct hfs_name hfs_dbl_reserved2[] = {
+	{ROOTINFO_LEN,		"RootInfo"},
+	{PCNT_ROOTINFO_LEN,	"%RootInfo"},
+	{0,			""},
+};
+
+#define DOT		(&hfs_dbl_reserved1[0])
+#define DOT_DOT		(&hfs_dbl_reserved1[1])
+#define ROOTINFO	(&hfs_dbl_reserved2[0])
+#define PCNT_ROOTINFO	(&hfs_dbl_reserved2[1])
+
+struct file_operations hfs_dbl_dir_operations = {
+	read:		generic_read_dir,
+	readdir:	dbl_readdir,
+	fsync:		file_fsync,
+};
+
+struct inode_operations hfs_dbl_dir_inode_operations = {
+	create:		dbl_create,
+	lookup:		dbl_lookup,
+	unlink:		dbl_unlink,
+	mkdir:		dbl_mkdir,
+	rmdir:		dbl_rmdir,
+	rename:		dbl_rename,
+	setattr:	hfs_notify_change,
+};
+
+
+/*================ File-local functions ================*/
+
+/*
+ * is_hdr()
+ */
+static int is_hdr(struct inode *dir, const char *name, int len)
+{
+	int retval = 0;
+
+	if (name[0] == '%') {
+		struct hfs_cat_entry *entry = HFS_I(dir)->entry;
+		struct hfs_cat_entry *victim;
+		struct hfs_name cname;
+		struct hfs_cat_key key;
+
+		hfs_nameout(dir, &cname, name+1, len-1);
+		hfs_cat_build_key(entry->cnid, &cname, &key);
+		if ((victim = hfs_cat_get(entry->mdb, &key))) {
+			hfs_cat_put(victim);
+			retval = 1;
+		}
+	}
+	return retval;
+}
+
+/*
+ * dbl_lookup()
+ *
+ * This is the lookup() entry in the inode_operations structure for
+ * HFS directories in the AppleDouble scheme.  The purpose is to
+ * generate the inode corresponding to an entry in a directory, given
+ * the inode for the directory and the name (and its length) of the
+ * entry.
+ */
+static struct dentry *dbl_lookup(struct inode * dir, struct dentry *dentry)
+{
+	struct hfs_name cname;
+	struct hfs_cat_entry *entry;
+	struct hfs_cat_key key;
+	struct inode *inode = NULL;
+
+	dentry->d_op = &hfs_dentry_operations;
+	entry = HFS_I(dir)->entry;
+	
+	/* Perform name-mangling */
+	hfs_nameout(dir, &cname, dentry->d_name.name, dentry->d_name.len);
+ 
+	/* no need to check for "."  or ".." */
+
+	/* Check for "%RootInfo" if in the root directory. */
+	if ((entry->cnid == htonl(HFS_ROOT_CNID)) &&
+	    hfs_streq(cname.Name, cname.Len, 
+		      PCNT_ROOTINFO->Name, PCNT_ROOTINFO_LEN)) {
+		++entry->count; /* __hfs_iget() eats one */
+		inode = hfs_iget(entry, HFS_DBL_HDR, dentry);
+		goto done;
+	}
+
+	/* Do an hfs_iget() on the mangled name. */
+	hfs_cat_build_key(entry->cnid, &cname, &key);
+	inode = hfs_iget(hfs_cat_get(entry->mdb, &key), HFS_DBL_NORM, dentry);
+
+	/* Try as a header if not found and first character is '%' */
+	if (!inode && (dentry->d_name.name[0] == '%')) {
+		hfs_nameout(dir, &cname, dentry->d_name.name+1,
+			    dentry->d_name.len-1);
+		hfs_cat_build_key(entry->cnid, &cname, &key);
+		inode = hfs_iget(hfs_cat_get(entry->mdb, &key),
+				 HFS_DBL_HDR, dentry);
+	}
+	
+done:
+	d_add(dentry, inode);
+	return NULL;
+}
+
+/*
+ * dbl_readdir()
+ *
+ * This is the readdir() entry in the file_operations structure for
+ * HFS directories in the AppleDouble scheme.  The purpose is to
+ * enumerate the entries in a directory, given the inode of the
+ * directory and a (struct file *), the 'f_pos' field of which
+ * indicates the location in the directory.  The (struct file *) is
+ * updated so that the next call with the same 'dir' and 'filp'
+ * arguments will produce the next directory entry.  The entries are
+ * returned in 'dirent', which is "filled-in" by calling filldir().
+ * This allows the same readdir() function be used for different
+ * formats.  We try to read in as many entries as we can before
+ * filldir() refuses to take any more.
+ *
+ * XXX: In the future it may be a good idea to consider not generating
+ * metadata files for covered directories since the data doesn't
+ * correspond to the mounted directory.	 However this requires an
+ * iget() for every directory which could be considered an excessive
+ * amount of overhead.	Since the inode for a mount point is always
+ * in-core this is another argument for a call to get an inode if it
+ * is in-core or NULL if it is not.
+ */
+static int dbl_readdir(struct file * filp,
+		       void * dirent, filldir_t filldir)
+{
+	struct hfs_brec brec;
+        struct hfs_cat_entry *entry;
+	struct inode *dir = filp->f_dentry->d_inode;
+
+	entry = HFS_I(dir)->entry;
+
+	if (filp->f_pos == 0) {
+		/* Entry 0 is for "." */
+		if (filldir(dirent, DOT->Name, DOT_LEN, 0, dir->i_ino,
+			    DT_DIR)) {
+			return 0;
+		}
+		filp->f_pos = 1;
+	}
+
+	if (filp->f_pos == 1) {
+		/* Entry 1 is for ".." */
+		if (filldir(dirent, DOT_DOT->Name, DOT_DOT_LEN, 1,
+			    hfs_get_hl(entry->key.ParID), DT_DIR)) {
+			return 0;
+		}
+		filp->f_pos = 2;
+	}
+
+	if (filp->f_pos < (dir->i_size - 1)) {
+                hfs_u32 cnid;
+                hfs_u8 type;
+
+		if (hfs_cat_open(entry, &brec) ||
+		    hfs_cat_next(entry, &brec, (filp->f_pos - 1) >> 1,
+				 &cnid, &type)) {
+			return 0;
+		}
+
+		while (filp->f_pos < (dir->i_size - 1)) {
+			unsigned char tmp_name[HFS_NAMEMAX + 1];
+			ino_t ino;
+			int is_hdr = (filp->f_pos & 1);
+			unsigned int len;
+
+			if (is_hdr) {
+				ino = ntohl(cnid) | HFS_DBL_HDR;
+				tmp_name[0] = '%';
+				len = 1 + hfs_namein(dir, tmp_name + 1,
+				    &((struct hfs_cat_key *)brec.key)->CName);
+			} else {
+				if (hfs_cat_next(entry, &brec, 1,
+							&cnid, &type)) {
+					return 0;
+				}
+				ino = ntohl(cnid);
+				len = hfs_namein(dir, tmp_name,
+				    &((struct hfs_cat_key *)brec.key)->CName);
+			}
+
+			if (filldir(dirent, tmp_name, len, filp->f_pos, ino,
+				    DT_UNKNOWN)) {
+				hfs_cat_close(entry, &brec);
+				return 0;
+			}
+			++filp->f_pos;
+		}
+		hfs_cat_close(entry, &brec);
+	}
+
+	if (filp->f_pos == (dir->i_size - 1)) {
+		if (entry->cnid == htonl(HFS_ROOT_CNID)) {
+			/* In root dir last entry is for "%RootInfo" */
+			if (filldir(dirent, PCNT_ROOTINFO->Name,
+				    PCNT_ROOTINFO_LEN, filp->f_pos,
+				    ntohl(entry->cnid) | HFS_DBL_HDR,
+				    DT_UNKNOWN)) {
+				return 0;
+			}
+		}
+		++filp->f_pos;
+	}
+
+	return 0;
+}
+
+/*
+ * dbl_create()
+ *
+ * This is the create() entry in the inode_operations structure for
+ * AppleDouble directories.  The purpose is to create a new file in
+ * a directory and return a corresponding inode, given the inode for
+ * the directory and the name (and its length) of the new file.
+ */
+static int dbl_create(struct inode * dir, struct dentry *dentry,
+		      int mode)
+{
+	int error;
+
+	if (is_hdr(dir, dentry->d_name.name, dentry->d_name.len)) {
+		error = -EEXIST;
+	} else {
+		error = hfs_create(dir, dentry, mode);
+	}
+	return error;
+}
+
+/*
+ * dbl_mkdir()
+ *
+ * This is the mkdir() entry in the inode_operations structure for
+ * AppleDouble directories.  The purpose is to create a new directory
+ * in a directory, given the inode for the parent directory and the
+ * name (and its length) of the new directory.
+ */
+static int dbl_mkdir(struct inode * parent, struct dentry *dentry,
+		     int mode)
+{
+	int error;
+
+	if (is_hdr(parent, dentry->d_name.name, dentry->d_name.len)) {
+		error = -EEXIST;
+	} else {
+		error = hfs_mkdir(parent, dentry, mode);
+	}
+	return error;
+}
+
+/*
+ * dbl_unlink()
+ *
+ * This is the unlink() entry in the inode_operations structure for
+ * AppleDouble directories.  The purpose is to delete an existing
+ * file, given the inode for the parent directory and the name
+ * (and its length) of the existing file.
+ */
+static int dbl_unlink(struct inode * dir, struct dentry *dentry)
+{
+	int error;
+
+	error = hfs_unlink(dir, dentry);
+	if ((error == -ENOENT) && is_hdr(dir, dentry->d_name.name,
+					 dentry->d_name.len)) {
+		error = -EPERM;
+	}
+	return error;
+}
+
+/*
+ * dbl_rmdir()
+ *
+ * This is the rmdir() entry in the inode_operations structure for
+ * AppleDouble directories.  The purpose is to delete an existing
+ * directory, given the inode for the parent directory and the name
+ * (and its length) of the existing directory.
+ */
+static int dbl_rmdir(struct inode * parent, struct dentry *dentry)
+{
+	int error;
+
+	error = hfs_rmdir(parent, dentry);
+	if ((error == -ENOENT) && is_hdr(parent, dentry->d_name.name,
+					 dentry->d_name.len)) {
+		error = -ENOTDIR;
+	}
+	return error;
+}
+
+/*
+ * dbl_rename()
+ *
+ * This is the rename() entry in the inode_operations structure for
+ * AppleDouble directories.  The purpose is to rename an existing
+ * file or directory, given the inode for the current directory and
+ * the name (and its length) of the existing file/directory and the
+ * inode for the new directory and the name (and its length) of the
+ * new file/directory.
+ * 
+ * XXX: how do we handle must_be_dir?
+ */
+static int dbl_rename(struct inode *old_dir, struct dentry *old_dentry,
+		      struct inode *new_dir, struct dentry *new_dentry)
+{
+	int error;
+
+	if (is_hdr(new_dir, new_dentry->d_name.name,
+		   new_dentry->d_name.len)) {
+		error = -EPERM;
+	} else {
+		error = hfs_rename(old_dir, old_dentry,
+				   new_dir, new_dentry);
+		if ((error == -ENOENT) /*&& !must_be_dir*/ &&
+		    is_hdr(old_dir, old_dentry->d_name.name,
+			   old_dentry->d_name.len)) {
+			error = -EPERM;
+		}
+	}
+	return error;
+}
+
+
+/* due to the dcache caching negative dentries for non-existent files,
+ * we need to drop those entries when a file silently gets created.
+ * as far as i can tell, the calls that need to do this are the file
+ * related calls (create, rename, and mknod). the directory calls
+ * should be immune. the relevant calls in dir.c call drop_dentry 
+ * upon successful completion. */
+void hfs_dbl_drop_dentry(struct dentry *dentry, const ino_t type)
+{
+  unsigned char tmp_name[HFS_NAMEMAX + 1];
+  struct dentry *de = NULL;
+
+  switch (type) {
+  case HFS_DBL_HDR:
+   /* given %name, look for name. i don't think this happens. */
+   de = hfs_lookup_dentry(dentry->d_parent,
+			  dentry->d_name.name + 1, dentry->d_name.len - 1);
+    break;
+  case HFS_DBL_DATA:
+    /* given name, look for %name */
+    tmp_name[0] = '%';
+    strncpy(tmp_name + 1, dentry->d_name.name, HFS_NAMELEN - 1);
+    de = hfs_lookup_dentry(dentry->d_parent, 
+			   tmp_name, dentry->d_name.len + 1);
+  }
+
+  if (de) {
+    if (!de->d_inode)
+      d_drop(de);
+    dput(de);
+  }
+}
diff --git a/fs/hfs/dir_nat.c b/fs/hfs/dir_nat.c
new file mode 100644
index 00000000000000..d378aa3a0f61a1
--- /dev/null
+++ b/fs/hfs/dir_nat.c
@@ -0,0 +1,452 @@
+/*
+ * linux/fs/hfs/dir_nat.c
+ *
+ * Copyright (C) 1995-1997  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * This file contains the inode_operations and file_operations
+ * structures for HFS directories.
+ *
+ * Based on the minix file system code, (C) 1991, 1992 by Linus Torvalds
+ *
+ * The source code distributions of Netatalk, versions 1.3.3b2 and
+ * 1.4b2, were used as a specification of the location and format of
+ * files used by Netatalk's afpd.  No code from Netatalk appears in
+ * hfs_fs.  hfs_fs is not a work ``derived'' from Netatalk in the
+ * sense of intellectual property law.
+ *
+ * "XXX" in a comment is a note to myself to consider changing something.
+ *
+ * In function preconditions the term "valid" applied to a pointer to
+ * a structure means that the pointer is non-NULL and the structure it
+ * points to has all fields initialized to consistent values.
+ */
+
+#include "hfs.h"
+#include <linux/hfs_fs_sb.h>
+#include <linux/hfs_fs_i.h>
+#include <linux/hfs_fs.h>
+
+/*================ Forward declarations ================*/
+
+static struct dentry *nat_lookup(struct inode *, struct dentry *);
+static int nat_readdir(struct file *, void *, filldir_t);
+static int nat_rmdir(struct inode *, struct dentry *);
+static int nat_hdr_unlink(struct inode *, struct dentry *);
+static int nat_hdr_rename(struct inode *, struct dentry *,
+			  struct inode *, struct dentry *);
+
+/*================ Global variables ================*/
+
+#define DOT_LEN			1
+#define DOT_DOT_LEN		2
+#define DOT_APPLEDOUBLE_LEN	12
+#define DOT_PARENT_LEN		7
+#define ROOTINFO_LEN            8
+
+const struct hfs_name hfs_nat_reserved1[] = {
+	{DOT_LEN,		"."},
+	{DOT_DOT_LEN,		".."},
+	{DOT_APPLEDOUBLE_LEN,	".AppleDouble"},
+	{DOT_PARENT_LEN,	".Parent"},
+	{0,			""},
+};
+
+const struct hfs_name hfs_nat_reserved2[] = {
+	{ROOTINFO_LEN,			"RootInfo"},
+};
+
+#define DOT		(&hfs_nat_reserved1[0])
+#define DOT_DOT		(&hfs_nat_reserved1[1])
+#define DOT_APPLEDOUBLE	(&hfs_nat_reserved1[2])
+#define DOT_PARENT	(&hfs_nat_reserved1[3])
+#define ROOTINFO        (&hfs_nat_reserved2[0])
+
+struct file_operations hfs_nat_dir_operations = {
+	read:		generic_read_dir,
+	readdir:	nat_readdir,
+	fsync:		file_fsync,
+};
+
+struct inode_operations hfs_nat_ndir_inode_operations = {
+	create:		hfs_create,
+	lookup:		nat_lookup,
+	unlink:		hfs_unlink,
+	mkdir:		hfs_mkdir,
+	rmdir:		nat_rmdir,
+	rename:		hfs_rename,
+	setattr:	hfs_notify_change,
+};
+
+struct inode_operations hfs_nat_hdir_inode_operations = {
+	create:		hfs_create,
+	lookup:		nat_lookup,
+	unlink:		nat_hdr_unlink,
+	rename:		nat_hdr_rename,
+	setattr:	hfs_notify_change,
+};
+
+/*================ File-local functions ================*/
+
+/*
+ * nat_lookup()
+ *
+ * This is the lookup() entry in the inode_operations structure for
+ * HFS directories in the Netatalk scheme.  The purpose is to generate
+ * the inode corresponding to an entry in a directory, given the inode
+ * for the directory and the name (and its length) of the entry.
+ */
+static struct dentry *nat_lookup(struct inode * dir, struct dentry *dentry)
+{
+	ino_t dtype;
+	struct hfs_name cname;
+	struct hfs_cat_entry *entry;
+	struct hfs_cat_key key;
+	struct inode *inode = NULL;
+
+	dentry->d_op = &hfs_dentry_operations;
+	entry = HFS_I(dir)->entry;
+	dtype = HFS_ITYPE(dir->i_ino);
+
+	/* Perform name-mangling */
+	hfs_nameout(dir, &cname, dentry->d_name.name, dentry->d_name.len);
+
+	/* no need to check for "."  or ".." */
+
+	/* Check for ".AppleDouble" if in a normal directory,
+	   and for ".Parent" in ".AppleDouble". */
+	if (dtype==HFS_NAT_NDIR) {
+		/* Check for ".AppleDouble" */
+		if (hfs_streq(cname.Name, cname.Len, 
+			      DOT_APPLEDOUBLE->Name, DOT_APPLEDOUBLE_LEN)) {
+			++entry->count; /* __hfs_iget() eats one */
+			inode = hfs_iget(entry, HFS_NAT_HDIR, dentry);
+			goto done;
+		}
+	} else if (dtype==HFS_NAT_HDIR) {
+		if (hfs_streq(cname.Name, cname.Len, 
+			      DOT_PARENT->Name, DOT_PARENT_LEN)) {
+			++entry->count; /* __hfs_iget() eats one */
+			inode = hfs_iget(entry, HFS_NAT_HDR, dentry);
+			goto done;
+		}
+
+		if ((entry->cnid == htonl(HFS_ROOT_CNID)) &&
+		    hfs_streq(cname.Name, cname.Len, 
+			      ROOTINFO->Name, ROOTINFO_LEN)) {
+			++entry->count; /* __hfs_iget() eats one */
+			inode = hfs_iget(entry, HFS_NAT_HDR, dentry);
+                        goto done;
+		}
+	}
+
+	/* Do an hfs_iget() on the mangled name. */
+	hfs_cat_build_key(entry->cnid, &cname, &key);
+	inode = hfs_iget(hfs_cat_get(entry->mdb, &key), 
+			 HFS_I(dir)->file_type, dentry);
+
+	/* Don't return a header file for a directory other than .Parent */
+	if (inode && (dtype == HFS_NAT_HDIR) &&
+	    (HFS_I(inode)->entry != entry) &&
+	    (HFS_I(inode)->entry->type == HFS_CDR_DIR)) {
+	        iput(inode); /* this does an hfs_cat_put */
+		inode = NULL;
+	}
+
+done:
+	d_add(dentry, inode);
+	return NULL;
+}
+
+/*
+ * nat_readdir()
+ *
+ * This is the readdir() entry in the file_operations structure for
+ * HFS directories in the netatalk scheme.  The purpose is to
+ * enumerate the entries in a directory, given the inode of the
+ * directory and a struct file which indicates the location in the
+ * directory.  The struct file is updated so that the next call with
+ * the same dir and filp will produce the next directory entry.	 The
+ * entries are returned in dirent, which is "filled-in" by calling
+ * filldir().  This allows the same readdir() function be used for
+ * different dirent formats.  We try to read in as many entries as we
+ * can before filldir() refuses to take any more.
+ *
+ * Note that the Netatalk format doesn't have the problem with
+ * metadata for covered directories that exists in the other formats,
+ * since the metadata is contained within the directory.
+ */
+static int nat_readdir(struct file * filp,
+		       void * dirent, filldir_t filldir)
+{
+	ino_t type;
+	int skip_dirs;
+	struct hfs_brec brec;
+        struct hfs_cat_entry *entry;
+	struct inode *dir = filp->f_dentry->d_inode;
+
+	entry = HFS_I(dir)->entry;
+	type = HFS_ITYPE(dir->i_ino);
+	skip_dirs = (type == HFS_NAT_HDIR);
+
+	if (filp->f_pos == 0) {
+		/* Entry 0 is for "." */
+		if (filldir(dirent, DOT->Name, DOT_LEN, 0, dir->i_ino,
+			    DT_DIR)) {
+			return 0;
+		}
+		filp->f_pos = 1;
+	}
+
+	if (filp->f_pos == 1) {
+		/* Entry 1 is for ".." */
+		hfs_u32 cnid;
+
+		if (type == HFS_NAT_NDIR) {
+			cnid = hfs_get_nl(entry->key.ParID);
+		} else {
+			cnid = entry->cnid;
+		}
+
+		if (filldir(dirent, DOT_DOT->Name,
+			    DOT_DOT_LEN, 1, ntohl(cnid), DT_DIR)) {
+			return 0;
+		}
+		filp->f_pos = 2;
+	}
+
+	if (filp->f_pos < (dir->i_size - 2)) {
+		hfs_u32 cnid;
+		hfs_u8 type;
+
+	    	if (hfs_cat_open(entry, &brec) ||
+		    hfs_cat_next(entry, &brec, filp->f_pos - 2, &cnid, &type)) {
+			return 0;
+		}
+		while (filp->f_pos < (dir->i_size - 2)) {
+			if (hfs_cat_next(entry, &brec, 1, &cnid, &type)) {
+				return 0;
+			}
+			if (!skip_dirs || (type != HFS_CDR_DIR)) {
+				ino_t ino;
+				unsigned int len;
+				unsigned char tmp_name[HFS_NAMEMAX];
+
+				ino = ntohl(cnid) | HFS_I(dir)->file_type;
+				len = hfs_namein(dir, tmp_name,
+				    &((struct hfs_cat_key *)brec.key)->CName);
+				if (filldir(dirent, tmp_name, len,
+					    filp->f_pos, ino, DT_UNKNOWN)) {
+					hfs_cat_close(entry, &brec);
+					return 0;
+				}
+			}
+			++filp->f_pos;
+		}
+		hfs_cat_close(entry, &brec);
+	}
+
+	if (filp->f_pos == (dir->i_size - 2)) {
+		if (type == HFS_NAT_NDIR) {
+			/* In normal dirs entry 2 is for ".AppleDouble" */
+			if (filldir(dirent, DOT_APPLEDOUBLE->Name,
+				    DOT_APPLEDOUBLE_LEN, filp->f_pos,
+				    ntohl(entry->cnid) | HFS_NAT_HDIR,
+				    DT_UNKNOWN)) {
+				return 0;
+			}
+		} else if (type == HFS_NAT_HDIR) {
+			/* In .AppleDouble entry 2 is for ".Parent" */
+			if (filldir(dirent, DOT_PARENT->Name,
+				    DOT_PARENT_LEN, filp->f_pos,
+				    ntohl(entry->cnid) | HFS_NAT_HDR,
+				    DT_UNKNOWN)) {
+				return 0;
+			}
+		}
+		++filp->f_pos;
+	}
+
+	if (filp->f_pos == (dir->i_size - 1)) {
+		/* handle ROOT/.AppleDouble/RootInfo as the last entry. */
+		if ((entry->cnid == htonl(HFS_ROOT_CNID)) &&
+		    (type == HFS_NAT_HDIR)) {
+			if (filldir(dirent, ROOTINFO->Name,
+				    ROOTINFO_LEN, filp->f_pos,
+				    ntohl(entry->cnid) | HFS_NAT_HDR,
+				    DT_UNKNOWN)) {
+				return 0;
+			}
+		}
+		++filp->f_pos;
+	}
+
+	return 0;
+}
+
+/* due to the dcache caching negative dentries for non-existent files,
+ * we need to drop those entries when a file silently gets created.
+ * as far as i can tell, the calls that need to do this are the file
+ * related calls (create, rename, and mknod). the directory calls
+ * should be immune. the relevant calls in dir.c call drop_dentry 
+ * upon successful completion. */
+void hfs_nat_drop_dentry(struct dentry *dentry, const ino_t type)
+{
+  struct dentry *de;
+  
+  switch (type) {
+  case HFS_NAT_HDR: /* given .AppleDouble/name */
+    /* look for name */
+    de = hfs_lookup_dentry(dentry->d_parent->d_parent,
+			   dentry->d_name.name, dentry->d_name.len);
+
+    if (de) {
+      if (!de->d_inode)
+	d_drop(de);
+      dput(de);
+    }
+    break;
+  case HFS_NAT_DATA: /* given name */
+    /* look for .AppleDouble/name */
+    hfs_drop_special(dentry->d_parent, DOT_APPLEDOUBLE, dentry);
+    break;
+  }
+
+}
+
+/*
+ * nat_rmdir()
+ *
+ * This is the rmdir() entry in the inode_operations structure for
+ * Netatalk directories.  The purpose is to delete an existing
+ * directory, given the inode for the parent directory and the name
+ * (and its length) of the existing directory.
+ *
+ * We handle .AppleDouble and call hfs_rmdir() for all other cases.
+ */
+static int nat_rmdir(struct inode *parent, struct dentry *dentry)
+{
+	struct hfs_cat_entry *entry = HFS_I(parent)->entry;
+	struct hfs_name cname;
+	int error;
+
+	hfs_nameout(parent, &cname, dentry->d_name.name, dentry->d_name.len);
+	if (hfs_streq(cname.Name, cname.Len,
+		      DOT_APPLEDOUBLE->Name, DOT_APPLEDOUBLE_LEN)) {
+		if (!HFS_SB(parent->i_sb)->s_afpd) {
+			/* Not in AFPD compatibility mode */
+			error = -EPERM;
+		} else if (entry->u.dir.files || entry->u.dir.dirs) {
+			/* AFPD compatible, but the directory is not empty */
+			error = -ENOTEMPTY;
+		} else {
+			/* AFPD compatible, so pretend to succeed */
+			error = 0;
+		}
+	} else {
+		error = hfs_rmdir(parent, dentry);
+	}
+	return error;
+}
+
+/*
+ * nat_hdr_unlink()
+ *
+ * This is the unlink() entry in the inode_operations structure for
+ * Netatalk .AppleDouble directories.  The purpose is to delete an
+ * existing file, given the inode for the parent directory and the name
+ * (and its length) of the existing file.
+ *
+ * WE DON'T ACTUALLY DELETE HEADER THE FILE.
+ * In non-afpd-compatible mode:
+ *   We return -EPERM.
+ * In afpd-compatible mode:
+ *   We return success if the file exists or is .Parent.
+ *   Otherwise we return -ENOENT.
+ */
+static int nat_hdr_unlink(struct inode *dir, struct dentry *dentry)
+{
+	struct hfs_cat_entry *entry = HFS_I(dir)->entry;
+	int error = 0;
+
+	if (!HFS_SB(dir->i_sb)->s_afpd) {
+		/* Not in AFPD compatibility mode */
+		error = -EPERM;
+	} else {
+		struct hfs_name cname;
+
+		hfs_nameout(dir, &cname, dentry->d_name.name, 
+			    dentry->d_name.len);
+		if (!hfs_streq(cname.Name, cname.Len,
+			       DOT_PARENT->Name, DOT_PARENT_LEN)) {
+			struct hfs_cat_entry *victim;
+			struct hfs_cat_key key;
+
+			hfs_cat_build_key(entry->cnid, &cname, &key);
+			victim = hfs_cat_get(entry->mdb, &key);
+
+			if (victim) {
+				/* pretend to succeed */
+				hfs_cat_put(victim);
+			} else {
+				error = -ENOENT;
+			}
+		}
+	}
+	return error;
+}
+
+/*
+ * nat_hdr_rename()
+ *
+ * This is the rename() entry in the inode_operations structure for
+ * Netatalk header directories.  The purpose is to rename an existing
+ * file given the inode for the current directory and the name 
+ * (and its length) of the existing file and the inode for the new
+ * directory and the name (and its length) of the new file/directory.
+ *
+ * WE NEVER MOVE ANYTHING.
+ * In non-afpd-compatible mode:
+ *   We return -EPERM.
+ * In afpd-compatible mode:
+ *   If the source header doesn't exist, we return -ENOENT.
+ *   If the destination is not a header directory we return -EPERM.
+ *   We return success if the destination is also a header directory
+ *    and the header exists or is ".Parent".
+ */
+static int nat_hdr_rename(struct inode *old_dir, struct dentry *old_dentry,
+			  struct inode *new_dir, struct dentry *new_dentry)
+{
+	struct hfs_cat_entry *entry = HFS_I(old_dir)->entry;
+	int error = 0;
+
+	if (!HFS_SB(old_dir->i_sb)->s_afpd) {
+		/* Not in AFPD compatibility mode */
+		error = -EPERM;
+	} else {
+		struct hfs_name cname;
+
+		hfs_nameout(old_dir, &cname, old_dentry->d_name.name,
+			    old_dentry->d_name.len);
+		if (!hfs_streq(cname.Name, cname.Len, 
+			       DOT_PARENT->Name, DOT_PARENT_LEN)) {
+			struct hfs_cat_entry *victim;
+			struct hfs_cat_key key;
+
+			hfs_cat_build_key(entry->cnid, &cname, &key);
+			victim = hfs_cat_get(entry->mdb, &key);
+
+			if (victim) {
+				/* pretend to succeed */
+				hfs_cat_put(victim);
+			} else {
+				error = -ENOENT;
+			}
+		}
+
+		if (!error && (HFS_ITYPE(new_dir->i_ino) != HFS_NAT_HDIR)) {
+			error = -EPERM;
+		}
+	}
+	return error;
+}
diff --git a/fs/hfs/extent.c b/fs/hfs/extent.c
new file mode 100644
index 00000000000000..5df23375add4de
--- /dev/null
+++ b/fs/hfs/extent.c
@@ -0,0 +1,809 @@
+/*
+ * linux/fs/hfs/extent.c
+ *
+ * Copyright (C) 1995-1997  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * This file contains the functions related to the extents B-tree.
+ *
+ * "XXX" in a comment is a note to myself to consider changing something.
+ *
+ * In function preconditions the term "valid" applied to a pointer to
+ * a structure means that the pointer is non-NULL and the structure it
+ * points to has all fields initialized to consistent values.
+ */
+
+#include "hfs.h"
+
+/*================ File-local data type ================*/
+
+/* An extent record on disk*/
+struct hfs_raw_extent {
+	hfs_word_t	block1;
+	hfs_word_t	length1;
+	hfs_word_t	block2;
+	hfs_word_t	length2;
+	hfs_word_t	block3;
+	hfs_word_t	length3;
+};
+
+/*================ File-local functions ================*/
+
+/*
+ * build_key
+ */
+static inline void build_key(struct hfs_ext_key *key,
+			     const struct hfs_fork *fork, hfs_u16 block)
+{
+	key->KeyLen = 7;
+	key->FkType = fork->fork;
+	hfs_put_nl(fork->entry->cnid, key->FNum);
+	hfs_put_hs(block,             key->FABN);
+}
+
+
+/*
+ * lock_bitmap()
+ *
+ * Get an exclusive lock on the B-tree bitmap.
+ */
+static inline void lock_bitmap(struct hfs_mdb *mdb) {
+	while (mdb->bitmap_lock) {
+		hfs_sleep_on(&mdb->bitmap_wait);
+	}
+	mdb->bitmap_lock = 1;
+}
+
+/*
+ * unlock_bitmap()
+ *
+ * Relinquish an exclusive lock on the B-tree bitmap.
+ */
+static inline void unlock_bitmap(struct hfs_mdb *mdb) {
+	mdb->bitmap_lock = 0;
+	hfs_wake_up(&mdb->bitmap_wait);
+}
+
+/*
+ * dump_ext()
+ *
+ * prints the content of a extent for debugging purposes.
+ */
+#if defined(DEBUG_EXTENTS) || defined(DEBUG_ALL)
+static void dump_ext(const char *msg, const struct hfs_extent *e) {
+	if (e) {
+		hfs_warn("%s (%d-%d) (%d-%d) (%d-%d)\n", msg,
+			 e->start,
+			 e->start + e->length[0] - 1,
+			 e->start + e->length[0],
+			 e->start + e->length[0] + e->length[1] - 1,
+			 e->start + e->length[0] + e->length[1],
+			 e->end);
+	} else {
+		hfs_warn("%s NULL\n", msg);
+	}
+}
+#else
+#define dump_ext(A,B) {}
+#endif
+
+/*
+ * read_extent()
+ * 
+ * Initializes a (struct hfs_extent) from a (struct hfs_raw_extent) and
+ * the number of the starting block for the extent.
+ *
+ * Note that the callers must check that to,from != NULL
+ */
+static void read_extent(struct hfs_extent *to,
+			const struct hfs_raw_extent *from,
+			hfs_u16 start)
+{
+	to->start = start;
+	to->block[0]  = hfs_get_hs(from->block1);
+	to->length[0] = hfs_get_hs(from->length1);
+	to->block[1]  = hfs_get_hs(from->block2);
+	to->length[1] = hfs_get_hs(from->length2);
+	to->block[2]  = hfs_get_hs(from->block3);
+	to->length[2] = hfs_get_hs(from->length3);
+	to->end = start + to->length[0] + to->length[1] + to->length[2] - 1;
+	to->next = to->prev = NULL;
+	to->count = 0;
+}
+
+/*
+ * write_extent()
+ * 
+ * Initializes a (struct hfs_raw_extent) from a (struct hfs_extent).
+ *
+ * Note that the callers must check that to,from != NULL
+ */
+static void write_extent(struct hfs_raw_extent *to,
+			 const struct hfs_extent *from)
+{
+	hfs_put_hs(from->block[0], to->block1);
+	hfs_put_hs(from->length[0], to->length1);
+	hfs_put_hs(from->block[1], to->block2);
+	hfs_put_hs(from->length[1], to->length2);
+	hfs_put_hs(from->block[2], to->block3);
+	hfs_put_hs(from->length[2], to->length3);
+}
+
+/*
+ * decode_extent()
+ *
+ * Given an extent record and allocation block offset into the file,
+ * return the number of the corresponding allocation block on disk,
+ * or -1 if the desired block is not mapped by the given extent.
+ *
+ * Note that callers must check that extent != NULL
+ */
+static int decode_extent(const struct hfs_extent * extent, int block)
+{
+	if (!extent || (block < extent->start) || (block > extent->end) ||
+	    (extent->end == (hfs_u16)(extent->start - 1))) {
+		return -1;
+	}
+	block -= extent->start;
+	if (block < extent->length[0]) {
+		return block + extent->block[0];
+	}
+	block -= extent->length[0];
+	if (block < extent->length[1]) {
+		return block + extent->block[1];
+	}
+	return block + extent->block[2] - extent->length[1];
+}
+
+/*
+ * relse_ext()
+ *
+ * Reduce the reference count of an in-core extent record by one,
+ * removing it from memory if the count falls to zero.
+ */
+static void relse_ext(struct hfs_extent *ext)
+{
+	if (--ext->count || !ext->start) {
+		return;
+	}
+	ext->prev->next = ext->next;
+	if (ext->next) {
+		ext->next->prev = ext->prev;
+	}
+	HFS_DELETE(ext);
+}
+
+/*
+ * set_cache()
+ * 
+ * Changes the 'cache' field of the fork.
+ */
+static inline void set_cache(struct hfs_fork *fork, struct hfs_extent *ext)
+{
+	struct hfs_extent *tmp = fork->cache;
+
+	++ext->count;
+	fork->cache = ext;
+	relse_ext(tmp);
+}
+
+/*
+ * find_ext()
+ *
+ * Given a pointer to a (struct hfs_file) and an allocation block
+ * number in the file, find the extent record containing that block.
+ * Returns a pointer to the extent record on success or NULL on failure.
+ * The 'cache' field of 'fil' also points to the extent so it has a
+ * reference count of at least 2.
+ *
+ * Callers must check that fil != NULL
+ */
+static struct hfs_extent * find_ext(struct hfs_fork *fork, int alloc_block)
+{
+        struct hfs_cat_entry *entry = fork->entry;
+	struct hfs_btree *tr= entry->mdb->ext_tree;
+	struct hfs_ext_key target, *key;
+	struct hfs_brec brec;
+	struct hfs_extent *ext, *ptr;
+	int tmp;
+
+	if (alloc_block < 0) {
+		ext = &fork->first;
+		goto found;
+	}
+
+	ext = fork->cache;
+	if (!ext || (alloc_block < ext->start)) {
+		ext = &fork->first;
+	}
+	while (ext->next && (alloc_block > ext->end)) {
+		ext = ext->next;
+	}
+	if ((alloc_block <= ext->end) && (alloc_block >= ext->start)) {
+		goto found;
+	}
+
+	/* time to read more extents */
+	if (!HFS_NEW(ext)) {
+		goto bail3;
+	}
+
+	build_key(&target, fork, alloc_block);
+
+	tmp = hfs_bfind(&brec, tr, HFS_BKEY(&target), HFS_BFIND_READ_LE);
+	if (tmp < 0) {
+		goto bail2;
+	}
+
+	key = (struct hfs_ext_key *)brec.key;
+	if ((hfs_get_nl(key->FNum) != hfs_get_nl(target.FNum)) ||
+	    (key->FkType != fork->fork)) {
+		goto bail1;
+	}
+		
+	read_extent(ext, brec.data, hfs_get_hs(key->FABN));
+	hfs_brec_relse(&brec, NULL);
+
+	if ((alloc_block > ext->end) && (alloc_block < ext->start)) {
+		/* something strange happened */
+		goto bail2;
+	}
+
+	ptr = fork->cache;
+	if (!ptr || (alloc_block < ptr->start)) {
+		ptr = &fork->first;
+	}
+	while (ptr->next && (alloc_block > ptr->end)) {
+		ptr = ptr->next;
+	}
+	if (ext->start == ptr->start) {
+		/* somebody beat us to it. */
+		HFS_DELETE(ext);
+		ext = ptr;
+	} else if (ext->start < ptr->start) {
+		/* insert just before ptr */
+		ptr->prev->next = ext;
+		ext->prev = ptr->prev;
+		ext->next = ptr;
+		ptr->prev = ext;
+	} else {
+		/* insert at end */
+		ptr->next = ext;
+		ext->prev = ptr;
+	}
+ found:
+	++ext->count; /* for return value */
+	set_cache(fork, ext);
+	return ext;
+
+ bail1:
+	hfs_brec_relse(&brec, NULL);
+ bail2:
+	HFS_DELETE(ext);
+ bail3:
+	return NULL;
+}
+
+/*
+ * delete_extent()
+ *
+ * Description:
+ *   Deletes an extent record from a fork, reducing its physical length.
+ * Input Variable(s):
+ *   struct hfs_fork *fork: the fork
+ *   struct hfs_extent *ext: the current last extent for 'fork'
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   void
+ * Preconditions:
+ *   'fork' points to a valid (struct hfs_fork)
+ *   'ext' point to a valid (struct hfs_extent) which is the last in 'fork'
+ *    and which is not also the first extent in 'fork'.
+ * Postconditions:
+ *   The extent record has been removed if possible, and a warning has been
+ *   printed otherwise.
+ */
+static void delete_extent(struct hfs_fork *fork, struct hfs_extent *ext)
+{
+	struct hfs_mdb *mdb = fork->entry->mdb;
+	struct hfs_ext_key key;
+	int error;
+
+	if (fork->cache == ext) {
+		set_cache(fork, ext->prev);
+	}
+	ext->prev->next = NULL;
+	if (ext->count != 1) {
+		hfs_warn("hfs_truncate: extent has count %d.\n", ext->count);
+	}
+
+	lock_bitmap(mdb);
+	error = hfs_clear_vbm_bits(mdb, ext->block[2], ext->length[2]);
+	if (error) {
+		hfs_warn("hfs_truncate: error %d freeing blocks.\n", error);
+	}
+	error = hfs_clear_vbm_bits(mdb, ext->block[1], ext->length[1]);
+	if (error) {
+		hfs_warn("hfs_truncate: error %d freeing blocks.\n", error);
+	}
+	error = hfs_clear_vbm_bits(mdb, ext->block[0], ext->length[0]);
+	if (error) {
+		hfs_warn("hfs_truncate: error %d freeing blocks.\n", error);
+	}
+	unlock_bitmap(mdb);
+
+	build_key(&key, fork, ext->start);
+
+	error = hfs_bdelete(mdb->ext_tree, HFS_BKEY(&key));
+	if (error) {
+		hfs_warn("hfs_truncate: error %d deleting an extent.\n", error);
+	}
+
+	HFS_DELETE(ext);
+}
+
+/*
+ * new_extent()
+ *
+ * Description:
+ *   Adds a new extent record to a fork, extending its physical length.
+ * Input Variable(s):
+ *   struct hfs_fork *fork: the fork to extend
+ *   struct hfs_extent *ext: the current last extent for 'fork'
+ *   hfs_u16 ablock: the number of allocation blocks in 'fork'.
+ *   hfs_u16 start: first allocation block to add to 'fork'.
+ *   hfs_u16 len: the number of allocation blocks to add to 'fork'.
+ *   hfs_u32 ablksz: number of sectors in an allocation block.
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   (struct hfs_extent *) the new extent or NULL
+ * Preconditions:
+ *   'fork' points to a valid (struct hfs_fork)
+ *   'ext' point to a valid (struct hfs_extent) which is the last in 'fork'
+ *   'ablock', 'start', 'len' and 'ablksz' are what they claim to be.
+ * Postconditions:
+ *   If NULL is returned then no changes have been made to 'fork'.
+ *   If the return value is non-NULL that it is the extent that has been
+ *   added to 'fork' both in memory and on disk.  The 'psize' field of
+ *   'fork' has been updated to reflect the new physical size.
+ */
+static struct hfs_extent *new_extent(struct hfs_fork *fork,
+				     struct hfs_extent *ext,
+				     hfs_u16 ablock, hfs_u16 start,
+				     hfs_u16 len, hfs_u16 ablksz)
+{
+	struct hfs_raw_extent raw;
+	struct hfs_ext_key key;
+	int error;
+
+	if (fork->entry->cnid == htonl(HFS_EXT_CNID)) {
+		/* Limit extents tree to the record in the MDB */
+		return NULL;
+	}
+
+	if (!HFS_NEW(ext->next)) {
+		return NULL;
+	}
+	ext->next->prev = ext;
+	ext->next->next = NULL;
+	ext = ext->next;
+	relse_ext(ext->prev);
+
+	ext->start = ablock;
+	ext->block[0] = start;
+	ext->length[0] = len;
+	ext->block[1] = 0;
+	ext->length[1] = 0;
+	ext->block[2] = 0;
+	ext->length[2] = 0;
+	ext->end = ablock + len - 1;
+	ext->count = 1;
+
+	write_extent(&raw, ext);
+	
+	build_key(&key, fork, ablock);
+
+	error = hfs_binsert(fork->entry->mdb->ext_tree, 
+			    HFS_BKEY(&key), &raw, sizeof(raw));
+	if (error) {
+		ext->prev->next = NULL;
+		HFS_DELETE(ext);
+		return NULL;
+	}
+	set_cache(fork, ext);
+	return ext;
+}
+
+/*
+ * update_ext()
+ *
+ * Given a (struct hfs_fork) write an extent record back to disk.
+ */
+static void update_ext(struct hfs_fork *fork, struct hfs_extent *ext)
+{
+	struct hfs_ext_key target;
+	struct hfs_brec brec;
+
+	if (ext->start) {
+		build_key(&target, fork, ext->start);
+
+		if (!hfs_bfind(&brec, fork->entry->mdb->ext_tree,
+			       HFS_BKEY(&target), HFS_BFIND_WRITE)) {
+			write_extent(brec.data, ext);
+			hfs_brec_relse(&brec, NULL);
+		}
+	}
+}
+
+/*
+ * zero_blocks()
+ * 
+ * Zeros-out 'num' allocation blocks beginning with 'start'.
+ */
+static int zero_blocks(struct hfs_mdb *mdb, int start, int num) {
+	hfs_buffer buf;
+	int end;
+	int j;
+
+	start = mdb->fs_start + start * mdb->alloc_blksz;
+	end = start + num * mdb->alloc_blksz;
+
+	for (j=start; j<end; ++j) {
+		if (hfs_buffer_ok(buf = hfs_buffer_get(mdb->sys_mdb, j, 0))) {
+			memset(hfs_buffer_data(buf), 0, HFS_SECTOR_SIZE);
+			hfs_buffer_dirty(buf);
+			hfs_buffer_put(buf);
+		}
+	}
+	return 0;
+}
+
+/*
+ * shrink_fork()
+ *
+ * Try to remove enough allocation blocks from 'fork'
+ * so that it is 'ablocks' allocation blocks long. 
+ */
+static void shrink_fork(struct hfs_fork *fork, int ablocks)
+{
+	struct hfs_mdb *mdb = fork->entry->mdb;
+	struct hfs_extent *ext;
+	int i, error, next, count;
+	hfs_u32 ablksz = mdb->alloc_blksz;
+
+	next =  (fork->psize / ablksz) - 1;
+	ext = find_ext(fork, next);
+	while (ext && ext->start && (ext->start >= ablocks)) {
+		next = ext->start - 1;
+		delete_extent(fork, ext);
+		ext = find_ext(fork, next);
+	}
+	if (!ext) {
+		fork->psize = (next + 1) * ablksz;
+		return;
+	}
+
+	if ((count = next + 1 - ablocks) > 0) {
+		for (i=2; (i>=0) && !ext->length[i]; --i) {};
+		lock_bitmap(mdb);
+		while (count && (ext->length[i] <= count)) {
+			ext->end -= ext->length[i];
+			count -= ext->length[i];
+			error = hfs_clear_vbm_bits(mdb, ext->block[i],
+						   ext->length[i]);
+			if (error) {
+				hfs_warn("hfs_truncate: error %d freeing "
+				       "blocks.\n", error);
+			}
+			ext->block[i] = ext->length[i] = 0;
+			--i;
+		}
+		if (count) {
+			ext->end -= count;
+			ext->length[i] -= count;
+			error = hfs_clear_vbm_bits(mdb, ext->block[i] +
+						       ext->length[i], count);
+			if (error) {
+				hfs_warn("hfs_truncate: error %d freeing "
+				       "blocks.\n", error);
+			}
+		}
+		unlock_bitmap(mdb);
+		update_ext(fork, ext);
+	}
+
+	fork->psize = ablocks * ablksz;
+}
+
+/*
+ * grow_fork()
+ *
+ * Try to add enough allocation blocks to 'fork'
+ * so that it is 'ablock' allocation blocks long. 
+ */
+static int grow_fork(struct hfs_fork *fork, int ablocks)
+{
+	struct hfs_cat_entry *entry = fork->entry;
+	struct hfs_mdb *mdb = entry->mdb;
+	struct hfs_extent *ext;
+	int i, start, err;
+	hfs_u16 need, len=0;
+	hfs_u32 ablksz = mdb->alloc_blksz;
+	hfs_u32 blocks, clumpablks;
+
+	blocks = fork->psize;
+	need = ablocks - blocks/ablksz;
+	if (need < 1) { /* no need to grow the fork */
+		return 0;
+	}
+
+	/* round up to clumpsize */
+	if (entry->u.file.clumpablks) {
+		clumpablks = entry->u.file.clumpablks;
+	} else {
+		clumpablks = mdb->clumpablks;
+	}
+	need = ((need + clumpablks - 1) / clumpablks) * clumpablks;
+
+	/* find last extent record and try to extend it */
+	if (!(ext = find_ext(fork, blocks/ablksz - 1))) {
+		/* somehow we couldn't find the end of the file! */
+		return -1;
+	}
+
+	/* determine which is the last used extent in the record */
+	/* then try to allocate the blocks immediately following it */
+	for (i=2; (i>=0) && !ext->length[i]; --i) {};
+	if (i>=0) {
+		/* try to extend the last extent */
+		start = ext->block[i] + ext->length[i];
+
+		err = 0;
+		lock_bitmap(mdb);
+		len = hfs_vbm_count_free(mdb, start);
+		if (!len) {
+			unlock_bitmap(mdb);
+			goto more_extents;
+		}
+		if (need < len) {
+			len = need;
+		}
+		err = hfs_set_vbm_bits(mdb, start, len);
+		unlock_bitmap(mdb);
+		if (err) {
+			relse_ext(ext);
+			return -1;
+		}
+	
+		zero_blocks(mdb, start, len);
+	
+		ext->length[i] += len;
+		ext->end += len;
+		blocks = (fork->psize += len * ablksz);
+		need -= len;
+		update_ext(fork, ext);
+	}
+
+more_extents:
+	/* add some more extents */
+	while (need) {
+		len = need;
+		err = 0;
+		lock_bitmap(mdb);
+		start = hfs_vbm_search_free(mdb, &len);
+		if (need < len) {
+			len = need;
+		}
+		err = hfs_set_vbm_bits(mdb, start, len);
+		unlock_bitmap(mdb);
+		if (!len || err) {
+			relse_ext(ext);
+			return -1;
+		}
+		zero_blocks(mdb, start, len);
+
+		/* determine which is the first free extent in the record */
+		for (i=0; (i<3) && ext->length[i]; ++i) {};
+		if (i < 3) {
+			ext->block[i] = start;
+			ext->length[i] = len;
+			ext->end += len;
+			update_ext(fork, ext);
+		} else {
+			if (!(ext = new_extent(fork, ext, blocks/ablksz,
+					       start, len, ablksz))) {
+				lock_bitmap(mdb);
+				hfs_clear_vbm_bits(mdb, start, len);
+				unlock_bitmap(mdb);
+				return -1;
+			}
+		}
+		blocks = (fork->psize += len * ablksz);
+		need -= len;
+	}
+	set_cache(fork, ext);
+	relse_ext(ext);
+	return 0;
+}
+
+/*================ Global functions ================*/
+
+/*
+ * hfs_ext_compare()
+ *
+ * Description:
+ *   This is the comparison function used for the extents B-tree.  In
+ *   comparing extent B-tree entries, the file id is the most
+ *   significant field (compared as unsigned ints); the fork type is
+ *   the second most significant field (compared as unsigned chars);
+ *   and the allocation block number field is the least significant
+ *   (compared as unsigned ints).
+ * Input Variable(s):
+ *   struct hfs_ext_key *key1: pointer to the first key to compare
+ *   struct hfs_ext_key *key2: pointer to the second key to compare
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   int: negative if key1<key2, positive if key1>key2, and 0 if key1==key2
+ * Preconditions:
+ *   key1 and key2 point to "valid" (struct hfs_ext_key)s.
+ * Postconditions:
+ *   This function has no side-effects */
+int hfs_ext_compare(const struct hfs_ext_key *key1,
+		    const struct hfs_ext_key *key2)
+{
+	unsigned int tmp;
+	int retval;
+
+	tmp = hfs_get_hl(key1->FNum) - hfs_get_hl(key2->FNum);
+	if (tmp != 0) {
+		retval = (int)tmp;
+	} else {
+		tmp = (unsigned char)key1->FkType - (unsigned char)key2->FkType;
+		if (tmp != 0) {
+			retval = (int)tmp;
+		} else {
+			retval = (int)(hfs_get_hs(key1->FABN)
+				       - hfs_get_hs(key2->FABN));
+		}
+	}
+	return retval;
+}
+
+/*
+ * hfs_extent_adj()
+ *
+ * Given an hfs_fork shrink or grow the fork to hold the
+ * forks logical size.
+ */
+void hfs_extent_adj(struct hfs_fork *fork)
+{
+	if (fork) {
+		hfs_u32 blks, ablocks, ablksz;
+
+		if (fork->lsize > HFS_FORK_MAX) {
+			fork->lsize = HFS_FORK_MAX;
+		}
+
+		blks = (fork->lsize+HFS_SECTOR_SIZE-1) >> HFS_SECTOR_SIZE_BITS;
+		ablksz = fork->entry->mdb->alloc_blksz;
+		ablocks = (blks + ablksz - 1) / ablksz;
+
+		if (blks > fork->psize) {
+			grow_fork(fork, ablocks);
+			if (blks > fork->psize) {
+				fork->lsize =
+					fork->psize >> HFS_SECTOR_SIZE_BITS;
+			}
+		} else if (blks < fork->psize) {
+			shrink_fork(fork, ablocks);
+		}
+	}
+}
+
+/*
+ * hfs_extent_map()
+ *
+ * Given an hfs_fork and a block number within the fork, return the
+ * number of the corresponding physical block on disk, or zero on
+ * error.
+ */
+int hfs_extent_map(struct hfs_fork *fork, int block, int create) 
+{
+	int ablksz, ablock, offset, tmp;
+	struct hfs_extent *ext;
+
+	if (!fork || !fork->entry || !fork->entry->mdb) {
+		return 0;
+	}
+
+#if defined(DEBUG_EXTENTS) || defined(DEBUG_ALL)
+	hfs_warn("hfs_extent_map: ablock %d of file %d, fork %d\n",
+		 block, fork->entry->cnid, fork->fork);
+#endif
+
+	if (block < 0) {
+		hfs_warn("hfs_extent_map: block < 0\n");
+		return 0;
+	}
+	if (block > (HFS_FORK_MAX >> HFS_SECTOR_SIZE_BITS)) {
+		hfs_warn("hfs_extent_map: block(0x%08x) > big; cnid=%d "
+			 "fork=%d\n", block, fork->entry->cnid, fork->fork);
+		return 0;
+	}
+	ablksz = fork->entry->mdb->alloc_blksz;
+	offset = fork->entry->mdb->fs_start + (block % ablksz);
+	ablock = block / ablksz;
+	
+	if (block >= fork->psize) {
+		if (!create || (grow_fork(fork, ablock + 1) < 0))
+			return 0;
+	}
+
+#if defined(DEBUG_EXTENTS) || defined(DEBUG_ALL)
+	hfs_warn("(lblock %d offset %d)\n", ablock, offset);
+#endif
+
+	if ((ext = find_ext(fork, ablock))) {
+		dump_ext("trying new: ", ext);
+		tmp = decode_extent(ext, ablock);
+		relse_ext(ext);
+		if (tmp >= 0) {
+			return tmp*ablksz + offset;
+		}
+	} 
+
+	return 0;
+}
+
+/*
+ * hfs_extent_out()
+ *
+ * Copy the first extent record from a (struct hfs_fork) to a (struct
+ * raw_extent), record (normally the one in the catalog entry).
+ */
+void hfs_extent_out(const struct hfs_fork *fork, hfs_byte_t dummy[12])
+{
+	struct hfs_raw_extent *ext = (struct hfs_raw_extent *)dummy;
+
+	if (fork && ext) {
+		write_extent(ext, &fork->first);
+		dump_ext("extent out: ", &fork->first);
+	}
+}
+
+/*
+ * hfs_extent_in()
+ *
+ * Copy an raw_extent to the 'first' and 'cache' fields of an hfs_fork.
+ */
+void hfs_extent_in(struct hfs_fork *fork, const hfs_byte_t dummy[12])
+{
+	const struct hfs_raw_extent *ext =
+		(const struct hfs_raw_extent *)dummy;
+
+	if (fork && ext) {
+		read_extent(&fork->first, ext, 0);
+		fork->cache = &fork->first;
+		fork->first.count = 2;
+		dump_ext("extent in: ", &fork->first);
+	}
+}
+
+/* 
+ * hfs_extent_free()
+ *
+ * Removes from memory all extents associated with 'fil'.
+ */
+void hfs_extent_free(struct hfs_fork *fork)
+{
+	if (fork) {
+		set_cache(fork, &fork->first);
+
+	        if (fork->first.next) {
+		        hfs_warn("hfs_extent_free: extents in use!\n");
+		}
+	}
+}
diff --git a/fs/hfs/file.c b/fs/hfs/file.c
new file mode 100644
index 00000000000000..bdb8f796c411c1
--- /dev/null
+++ b/fs/hfs/file.c
@@ -0,0 +1,534 @@
+/*
+ * linux/fs/hfs/file.c
+ *
+ * Copyright (C) 1995, 1996  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * This file contains the file-related functions which are independent of
+ * which scheme is being used to represent forks.
+ *
+ * Based on the minix file system code, (C) 1991, 1992 by Linus Torvalds
+ *
+ * "XXX" in a comment is a note to myself to consider changing something.
+ *
+ * In function preconditions the term "valid" applied to a pointer to
+ * a structure means that the pointer is non-NULL and the structure it
+ * points to has all fields initialized to consistent values.
+ */
+
+#include "hfs.h"
+#include <linux/hfs_fs_sb.h>
+#include <linux/hfs_fs_i.h>
+#include <linux/hfs_fs.h>
+
+/*================ Forward declarations ================*/
+
+static hfs_rwret_t hfs_file_read(struct file *, char *, hfs_rwarg_t,
+				 loff_t *);
+static hfs_rwret_t hfs_file_write(struct file *, const char *, hfs_rwarg_t,
+				  loff_t *);
+static void hfs_file_truncate(struct inode *);
+
+/*================ Global variables ================*/
+
+struct file_operations hfs_file_operations = {
+	llseek:		generic_file_llseek,
+	read:		hfs_file_read,
+	write:		hfs_file_write,
+	mmap:		generic_file_mmap,
+	fsync:		file_fsync,
+};
+
+struct inode_operations hfs_file_inode_operations = {
+	truncate:	hfs_file_truncate,
+	setattr:	hfs_notify_change,
+};
+
+/*================ Variable-like macros ================*/
+
+/* maximum number of blocks to try to read in at once */
+#define NBUF 32
+
+/*================ File-local functions ================*/
+
+/*
+ * hfs_getblk()
+ *
+ * Given an hfs_fork and a block number return the buffer_head for
+ * that block from the fork.  If 'create' is non-zero then allocate
+ * the necessary block(s) to the fork.
+ */
+struct buffer_head *hfs_getblk(struct hfs_fork *fork, int block, int create)
+{
+	int tmp;
+	struct super_block *sb = fork->entry->mdb->sys_mdb;
+
+	tmp = hfs_extent_map(fork, block, create);
+
+	if (create) {
+		/* If writing the block, then we have exclusive access
+		   to the file until we return, so it can't have moved.
+		*/
+		if (tmp) {
+			hfs_cat_mark_dirty(fork->entry);
+			return sb_getblk(sb, tmp);
+		}
+		return NULL;
+	} else {
+		/* If reading the block, then retry since the
+		   location on disk could have changed while
+		   we waited on the I/O in getblk to complete.
+		*/
+		do {
+			struct buffer_head *bh = sb_getblk(sb, tmp);
+			int tmp2 = hfs_extent_map(fork, block, 0);
+
+			if (tmp2 == tmp) {
+				return bh;
+			} else {
+				/* The block moved or no longer exists. */
+				brelse(bh);
+				tmp = tmp2;
+			}
+		} while (tmp != 0);
+
+		/* The block no longer exists. */
+		return NULL;
+	}
+}
+
+/*
+ * hfs_get_block
+ *
+ * This is the hfs_get_block() field in the inode_operations structure for
+ * "regular" (non-header) files.  The purpose is to translate an inode
+ * and a block number within the corresponding file into a physical
+ * block number.  This function just calls hfs_extent_map() to do the
+ * real work and then stuffs the appropriate info into the buffer_head.
+ */
+int hfs_get_block(struct inode *inode, long iblock, struct buffer_head *bh_result, int create)
+{
+	unsigned long phys;
+
+	phys = hfs_extent_map(HFS_I(inode)->fork, iblock, create);
+	if (phys) {
+		bh_result->b_dev = inode->i_dev;
+		bh_result->b_blocknr = phys;
+		bh_result->b_state |= (1UL << BH_Mapped);
+		if (create)
+			bh_result->b_state |= (1UL << BH_New);
+		return 0;
+	}
+
+	if (!create)
+		return 0;
+
+	/* we tried to add stuff, but we couldn't. send back an out-of-space
+	 * error. */
+	return -ENOSPC;
+}
+
+
+/*
+ * hfs_file_read()
+ *
+ * This is the read field in the inode_operations structure for
+ * "regular" (non-header) files.  The purpose is to transfer up to
+ * 'count' bytes from the file corresponding to 'inode', beginning at
+ * 'filp->offset' bytes into the file.	The data is transferred to
+ * user-space at the address 'buf'.  Returns the number of bytes
+ * successfully transferred.  This function checks the arguments, does
+ * some setup and then calls hfs_do_read() to do the actual transfer.  */
+static hfs_rwret_t hfs_file_read(struct file * filp, char * buf, 
+				 hfs_rwarg_t count, loff_t *ppos)
+{
+        struct inode *inode = filp->f_dentry->d_inode;
+	hfs_s32 read, left, pos, size;
+
+	if (!S_ISREG(inode->i_mode)) {
+		hfs_warn("hfs_file_read: mode = %07o\n",inode->i_mode);
+		return -EINVAL;
+	}
+	pos = *ppos;
+	if (pos < 0 || pos >= HFS_FORK_MAX) {
+		return 0;
+	}
+	size = inode->i_size;
+	if (pos > size) {
+		left = 0;
+	} else {
+		left = size - pos;
+	}
+	if (left > count) {
+		left = count;
+	}
+	if (left <= 0) {
+		return 0;
+	}
+	if ((read = hfs_do_read(inode, HFS_I(inode)->fork, pos,
+				buf, left, filp->f_reada != 0)) > 0) {
+	        *ppos = pos + read;
+		filp->f_reada = 1;
+	}
+
+	return read;
+}
+
+/*
+ * hfs_file_write()
+ *
+ * This is the write() entry in the file_operations structure for
+ * "regular" files.  The purpose is to transfer up to 'count' bytes
+ * to the file corresponding to 'inode' beginning at offset
+ * 'file->f_pos' from user-space at the address 'buf'.  The return
+ * value is the number of bytes actually transferred.
+ */
+static hfs_rwret_t hfs_file_write(struct file * filp, const char * buf,
+				  hfs_rwarg_t count, loff_t *ppos)
+{
+        struct inode    *inode = filp->f_dentry->d_inode;
+	struct hfs_fork *fork = HFS_I(inode)->fork;
+	hfs_s32 written, pos;
+
+	if (!S_ISREG(inode->i_mode)) {
+		hfs_warn("hfs_file_write: mode = %07o\n", inode->i_mode);
+		return -EINVAL;
+	}
+
+	pos = (filp->f_flags & O_APPEND) ? inode->i_size : *ppos;
+
+	if (pos < 0 || pos >= HFS_FORK_MAX) {
+		return 0;
+	}
+	if (count > HFS_FORK_MAX) {
+		count = HFS_FORK_MAX;
+	}
+	if ((written = hfs_do_write(inode, fork, pos, buf, count)) > 0)
+	        pos += written;
+
+	*ppos = pos;
+	if (pos > inode->i_size) {
+	        inode->i_size = pos;
+		mark_inode_dirty(inode);
+	}
+
+	return written;
+}
+
+/*
+ * hfs_file_truncate()
+ *
+ * This is the truncate() entry in the file_operations structure for
+ * "regular" files.  The purpose is to change the length of the file
+ * corresponding to the given inode.  Changes can either lengthen or
+ * shorten the file.
+ */
+static void hfs_file_truncate(struct inode * inode)
+{
+	struct hfs_fork *fork = HFS_I(inode)->fork;
+
+	fork->lsize = inode->i_size;
+	hfs_extent_adj(fork);
+	hfs_cat_mark_dirty(HFS_I(inode)->entry);
+
+	inode->i_size = fork->lsize;
+	inode->i_blocks = fork->psize;
+	mark_inode_dirty(inode);
+}
+
+/*
+ * xlate_to_user()
+ *
+ * Like copy_to_user() while translating CR->NL.
+ */
+static inline void xlate_to_user(char *buf, const char *data, int count)
+{
+	char ch;
+
+	while (count--) {
+		ch = *(data++);
+		put_user((ch == '\r') ? '\n' : ch, buf++);
+	}
+}
+
+/*
+ * xlate_from_user()
+ *
+ * Like copy_from_user() while translating NL->CR;
+ */
+static inline int xlate_from_user(char *data, const char *buf, int count)
+{
+	int i;
+
+	i = copy_from_user(data, buf, count);
+	count -= i;
+	while (count--) {
+		if (*data == '\n') {
+			*data = '\r';
+		}
+		++data;
+	}
+	return i;
+}
+
+/*================ Global functions ================*/
+
+/*
+ * hfs_do_read()
+ *
+ * This function transfers actual data from disk to user-space memory,
+ * returning the number of bytes successfully transferred.  'fork' tells
+ * which file on the disk to read from.  'pos' gives the offset into
+ * the Linux file at which to begin the transfer.  Note that this will
+ * differ from 'filp->offset' in the case of an AppleDouble header file
+ * due to the block of metadata at the beginning of the file, which has
+ * no corresponding place in the HFS file.  'count' tells how many
+ * bytes to transfer.  'buf' gives an address in user-space to transfer
+ * the data to.
+ * 
+ * This is based on Linus's minix_file_read().
+ * It has been changed to take into account that HFS files have no holes.
+ */
+hfs_s32 hfs_do_read(struct inode *inode, struct hfs_fork * fork, hfs_u32 pos,
+		    char * buf, hfs_u32 count, int reada)
+{
+	kdev_t dev = inode->i_dev;
+	hfs_s32 size, chars, offset, block, blocks, read = 0;
+	int bhrequest, uptodate;
+	int convert = HFS_I(inode)->convert;
+	struct buffer_head ** bhb, ** bhe;
+	struct buffer_head * bhreq[NBUF];
+	struct buffer_head * buflist[NBUF];
+
+	/* split 'pos' in to block and (byte) offset components */
+	block = pos >> HFS_SECTOR_SIZE_BITS;
+	offset = pos & (HFS_SECTOR_SIZE-1);
+
+	/* compute the logical size of the fork in blocks */
+	size = (fork->lsize + (HFS_SECTOR_SIZE-1)) >> HFS_SECTOR_SIZE_BITS;
+
+	/* compute the number of physical blocks to be transferred */
+	blocks = (count+offset+HFS_SECTOR_SIZE-1) >> HFS_SECTOR_SIZE_BITS;
+
+	bhb = bhe = buflist;
+	if (reada) {
+		if (blocks < read_ahead[MAJOR(dev)] / (HFS_SECTOR_SIZE>>9)) {
+			blocks = read_ahead[MAJOR(dev)] / (HFS_SECTOR_SIZE>>9);
+		}
+		if (block + blocks > size) {
+			blocks = size - block;
+		}
+	}
+
+	/* We do this in a two stage process.  We first try and
+	   request as many blocks as we can, then we wait for the
+	   first one to complete, and then we try and wrap up as many
+	   as are actually done.
+	   
+	   This routine is optimized to make maximum use of the
+	   various buffers and caches. */
+
+	do {
+		bhrequest = 0;
+		uptodate = 1;
+		while (blocks) {
+			--blocks;
+			*bhb = hfs_getblk(fork, block++, 0);
+
+			if (!(*bhb)) {
+				/* Since there are no holes in HFS files
+				   we must have encountered an error.
+				   So, stop adding blocks to the queue. */
+				blocks = 0;
+				break;
+			}
+
+			if (!buffer_uptodate(*bhb)) {
+				uptodate = 0;
+				bhreq[bhrequest++] = *bhb;
+			}
+
+			if (++bhb == &buflist[NBUF]) {
+				bhb = buflist;
+			}
+
+			/* If the block we have on hand is uptodate,
+			   go ahead and complete processing. */
+			if (uptodate) {
+				break;
+			}
+			if (bhb == bhe) {
+				break;
+			}
+		}
+
+		/* If the only block in the queue is bad then quit */
+		if (!(*bhe)) {
+			break;
+		}
+
+		/* Now request them all */
+		if (bhrequest) {
+			ll_rw_block(READ, bhrequest, bhreq);
+		}
+
+		do {  /* Finish off all I/O that has actually completed */
+			char *p;
+
+			wait_on_buffer(*bhe);
+
+			if (!buffer_uptodate(*bhe)) {
+				/* read error? */
+				brelse(*bhe);
+				if (++bhe == &buflist[NBUF]) {
+					bhe = buflist;
+				}
+				count = 0;
+				break;
+			}
+
+			if (count < HFS_SECTOR_SIZE - offset) {
+				chars = count;
+			} else {
+				chars = HFS_SECTOR_SIZE - offset;
+			}
+			p = (*bhe)->b_data + offset;
+			if (convert) {
+				xlate_to_user(buf, p, chars);
+			} else {
+				chars -= copy_to_user(buf, p, chars);
+				if (!chars) {
+					brelse(*bhe);
+					count = 0;
+					if (!read)
+						read = -EFAULT;
+					break;
+				}
+			}
+			brelse(*bhe);
+			count -= chars;
+			buf += chars;
+			read += chars;
+			offset = 0;
+			if (++bhe == &buflist[NBUF]) {
+				bhe = buflist;
+			}
+		} while (count && (bhe != bhb) && !buffer_locked(*bhe));
+	} while (count);
+
+	/* Release the read-ahead blocks */
+	while (bhe != bhb) {
+		brelse(*bhe);
+		if (++bhe == &buflist[NBUF]) {
+			bhe = buflist;
+		}
+	}
+	if (!read) {
+		return -EIO;
+	}
+	return read;
+}
+ 
+/*
+ * hfs_do_write()
+ *
+ * This function transfers actual data from user-space memory to disk,
+ * returning the number of bytes successfully transferred.  'fork' tells
+ * which file on the disk to write to.  'pos' gives the offset into
+ * the Linux file at which to begin the transfer.  Note that this will
+ * differ from 'filp->offset' in the case of an AppleDouble header file
+ * due to the block of metadata at the beginning of the file, which has
+ * no corresponding place in the HFS file.  'count' tells how many
+ * bytes to transfer.  'buf' gives an address in user-space to transfer
+ * the data from.
+ * 
+ * This is just a minor edit of Linus's minix_file_write().
+ */
+hfs_s32 hfs_do_write(struct inode *inode, struct hfs_fork * fork, hfs_u32 pos,
+		     const char * buf, hfs_u32 count)
+{
+	hfs_s32 written, c;
+	struct buffer_head * bh;
+	char * p;
+	int convert = HFS_I(inode)->convert;
+
+	written = 0;
+	while (written < count) {
+		bh = hfs_getblk(fork, pos/HFS_SECTOR_SIZE, 1);
+		if (!bh) {
+			if (!written) {
+				written = -ENOSPC;
+			}
+			break;
+		}
+		c = HFS_SECTOR_SIZE - (pos % HFS_SECTOR_SIZE);
+		if (c > count - written) {
+			c = count - written;
+		}
+		if (c != HFS_SECTOR_SIZE && !buffer_uptodate(bh)) {
+			ll_rw_block(READ, 1, &bh);
+			wait_on_buffer(bh);
+			if (!buffer_uptodate(bh)) {
+				brelse(bh);
+				if (!written) {
+					written = -EIO;
+				}
+				break;
+			}
+		}
+		p = (pos % HFS_SECTOR_SIZE) + bh->b_data;
+		c -= convert ? xlate_from_user(p, buf, c) :
+			copy_from_user(p, buf, c);
+		if (!c) {
+			brelse(bh);
+			if (!written)
+				written = -EFAULT;
+			break;
+		}
+		pos += c;
+		written += c;
+		buf += c;
+		mark_buffer_uptodate(bh, 1);
+		mark_buffer_dirty(bh);
+		brelse(bh);
+	}
+	if (written > 0) {
+		struct hfs_cat_entry *entry = fork->entry;
+
+		inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+		if (pos > fork->lsize) {
+			fork->lsize = pos;
+		}
+		entry->modify_date = hfs_u_to_mtime(CURRENT_TIME);
+		hfs_cat_mark_dirty(entry);
+	}
+	return written;
+}
+
+/*
+ * hfs_file_fix_mode()
+ *
+ * Fixes up the permissions on a file after changing the write-inhibit bit.
+ */
+void hfs_file_fix_mode(struct hfs_cat_entry *entry)
+{
+	struct dentry **de = entry->sys_entry;
+	int i;
+
+	if (entry->u.file.flags & HFS_FIL_LOCK) {
+		for (i = 0; i < 4; ++i) {
+			if (de[i]) {
+				de[i]->d_inode->i_mode &= ~S_IWUGO;
+			}
+		}
+	} else {
+		for (i = 0; i < 4; ++i) {
+			if (de[i]) {
+			        struct inode *inode = de[i]->d_inode;
+				inode->i_mode |= S_IWUGO;
+				inode->i_mode &= 
+				  ~HFS_SB(inode->i_sb)->s_umask;
+			}
+		}
+	}
+}
diff --git a/fs/hfs/file_cap.c b/fs/hfs/file_cap.c
new file mode 100644
index 00000000000000..f3481f57eb7e66
--- /dev/null
+++ b/fs/hfs/file_cap.c
@@ -0,0 +1,279 @@
+/*
+ * linux/fs/hfs/file_cap.c
+ *
+ * Copyright (C) 1995-1997  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * This file contains the file_ops and inode_ops for the metadata
+ * files under the CAP representation.
+ *
+ * The source code distribution of the Columbia AppleTalk Package for
+ * UNIX, version 6.0, (CAP) was used as a specification of the
+ * location and format of files used by CAP's Aufs.  No code from CAP
+ * appears in hfs_fs.  hfs_fs is not a work ``derived'' from CAP in
+ * the sense of intellectual property law.
+ *
+ * "XXX" in a comment is a note to myself to consider changing something.
+ *
+ * In function preconditions the term "valid" applied to a pointer to
+ * a structure means that the pointer is non-NULL and the structure it
+ * points to has all fields initialized to consistent values.
+ */
+
+#include "hfs.h"
+#include <linux/hfs_fs_sb.h>
+#include <linux/hfs_fs_i.h>
+#include <linux/hfs_fs.h>
+
+/*================ Forward declarations ================*/
+static loff_t      cap_info_llseek(struct file *, loff_t,
+                                   int);
+static hfs_rwret_t cap_info_read(struct file *, char *,
+				 hfs_rwarg_t, loff_t *);
+static hfs_rwret_t cap_info_write(struct file *, const char *,
+				  hfs_rwarg_t, loff_t *);
+/*================ Function-like macros ================*/
+
+/*
+ * OVERLAPS()
+ *
+ * Determines if a given range overlaps the specified structure member
+ */
+#define OVERLAPS(START, END, TYPE, MEMB) \
+	((END > offsetof(TYPE, MEMB)) && \
+	 (START < offsetof(TYPE, MEMB) + sizeof(((TYPE *)0)->MEMB)))
+
+/*================ Global variables ================*/
+
+struct file_operations hfs_cap_info_operations = {
+	llseek:		cap_info_llseek,
+	read:		cap_info_read,
+	write:		cap_info_write,
+	fsync:		file_fsync,
+};
+
+struct inode_operations hfs_cap_info_inode_operations = {
+	setattr:	hfs_notify_change_cap,
+};
+
+/*================ File-local functions ================*/
+
+/*
+ * cap_build_meta()
+ *
+ * Build the metadata structure.
+ */
+static void cap_build_meta(struct hfs_cap_info *meta,
+			   struct hfs_cat_entry *entry)
+{
+	memset(meta, 0, sizeof(*meta));
+	memcpy(meta->fi_fndr, &entry->info, 32);
+	if ((entry->type == HFS_CDR_FIL) &&
+	    (entry->u.file.flags & HFS_FIL_LOCK)) {
+		/* Couple the locked bit of the file to the
+		   AFP {write,rename,delete} inhibit bits. */
+		hfs_put_hs(HFS_AFP_RDONLY, meta->fi_attr);
+	}
+	meta->fi_magic1 = HFS_CAP_MAGIC1;
+	meta->fi_version = HFS_CAP_VERSION;
+	meta->fi_magic = HFS_CAP_MAGIC;
+	meta->fi_bitmap = HFS_CAP_LONGNAME;
+	memcpy(meta->fi_macfilename, entry->key.CName.Name,
+	       entry->key.CName.Len);
+	meta->fi_datemagic = HFS_CAP_DMAGIC;
+	meta->fi_datevalid = HFS_CAP_MDATE | HFS_CAP_CDATE;
+	hfs_put_nl(hfs_m_to_htime(entry->create_date), meta->fi_ctime);
+	hfs_put_nl(hfs_m_to_htime(entry->modify_date), meta->fi_mtime);
+	hfs_put_nl(CURRENT_TIME,                       meta->fi_utime);
+}
+
+static loff_t cap_info_llseek(struct file *file, loff_t offset, int origin)
+{
+	long long retval;
+
+	switch (origin) {
+		case 2:
+			offset += file->f_dentry->d_inode->i_size;
+			break;
+		case 1:
+			offset += file->f_pos;
+	}
+	retval = -EINVAL;
+	if (offset>=0 && offset<=HFS_FORK_MAX) {
+		if (offset != file->f_pos) {
+			file->f_pos = offset;
+			file->f_reada = 0;
+			file->f_version = ++event;
+		}
+		retval = offset;
+	}
+	return retval;
+}
+
+/*
+ * cap_info_read()
+ *
+ * This is the read() entry in the file_operations structure for CAP
+ * metadata files.  The purpose is to transfer up to 'count' bytes
+ * from the file corresponding to 'inode' beginning at offset
+ * 'file->f_pos' to user-space at the address 'buf'.  The return value
+ * is the number of bytes actually transferred.
+ */
+static hfs_rwret_t cap_info_read(struct file *filp, char *buf,
+				 hfs_rwarg_t count, loff_t *ppos)
+{
+	struct inode *inode = filp->f_dentry->d_inode;
+	struct hfs_cat_entry *entry = HFS_I(inode)->entry;
+	hfs_s32 left, size, read = 0;
+	hfs_u32 pos;
+
+	if (!S_ISREG(inode->i_mode)) {
+		hfs_warn("hfs_cap_info_read: mode = %07o\n", inode->i_mode);
+		return -EINVAL;
+	}
+
+	pos = *ppos;
+	if (pos > HFS_FORK_MAX) {
+		return 0;
+	}
+	size = inode->i_size;
+	if (pos > size) {
+		left = 0;
+	} else {
+		left = size - pos;
+	}
+	if (left > count) {
+		left = count;
+	}
+	if (left <= 0) {
+		return 0;
+	}
+
+	if (pos < sizeof(struct hfs_cap_info)) {
+		int memcount = sizeof(struct hfs_cap_info) - pos;
+		struct hfs_cap_info meta;
+
+		if (memcount > left) {
+			memcount = left;
+		}
+		cap_build_meta(&meta, entry);
+		memcount -= copy_to_user(buf, ((char *)&meta) + pos, memcount);
+		left -= memcount;
+		read += memcount;
+		pos += memcount;
+		buf += memcount;
+	}
+
+	if (left > 0) {
+		clear_user(buf, left);
+	        pos += left;
+	}
+
+	if (read) {
+		inode->i_atime = CURRENT_TIME;
+		*ppos = pos;
+		mark_inode_dirty(inode);
+	}
+
+	return read;
+}
+
+/*
+ * cap_info_write()
+ *
+ * This is the write() entry in the file_operations structure for CAP
+ * metadata files.  The purpose is to transfer up to 'count' bytes
+ * to the file corresponding to 'inode' beginning at offset
+ * '*ppos' from user-space at the address 'buf'.
+ * The return value is the number of bytes actually transferred.
+ */
+static hfs_rwret_t cap_info_write(struct file *filp, const char *buf, 
+				  hfs_rwarg_t count, loff_t *ppos)
+{
+        struct inode *inode = filp->f_dentry->d_inode;
+	hfs_u32 pos, last;
+
+	if (!S_ISREG(inode->i_mode)) {
+		hfs_warn("hfs_file_write: mode = %07o\n", inode->i_mode);
+		return -EINVAL;
+	}
+	if (count <= 0) {
+		return 0;
+	}
+	
+	pos = (filp->f_flags & O_APPEND) ? inode->i_size : *ppos;
+
+	if (pos > HFS_FORK_MAX) {
+		return 0;
+	}
+
+	last = pos + count;
+	if (last > HFS_FORK_MAX) {
+		last = HFS_FORK_MAX;
+		count = HFS_FORK_MAX - pos;
+	}
+
+	if (last > inode->i_size)
+	        inode->i_size = last;
+
+	/* Only deal with the part we store in memory */
+	if (pos < sizeof(struct hfs_cap_info)) {
+		int end, mem_count;
+		struct hfs_cat_entry *entry = HFS_I(inode)->entry;
+		struct hfs_cap_info meta;
+
+		mem_count = sizeof(struct hfs_cap_info) - pos;
+		if (mem_count > count) {
+			mem_count = count;
+		}
+		end = pos + mem_count;
+
+		cap_build_meta(&meta, entry);
+		mem_count -= copy_from_user(((char *)&meta) + pos, buf, mem_count);
+
+		/* Update finder attributes if changed */
+		if (OVERLAPS(pos, end, struct hfs_cap_info, fi_fndr)) {
+			memcpy(&entry->info, meta.fi_fndr, 32);
+			hfs_cat_mark_dirty(entry);
+		}
+
+		/* Update file flags if changed */
+		if (OVERLAPS(pos, end, struct hfs_cap_info, fi_attr) &&
+		    (entry->type == HFS_CDR_FIL)) {
+			int locked = hfs_get_ns(&meta.fi_attr) &
+							htons(HFS_AFP_WRI);
+			hfs_u8 new_flags;
+
+			if (locked) {
+				new_flags = entry->u.file.flags | HFS_FIL_LOCK;
+			} else {
+				new_flags = entry->u.file.flags & ~HFS_FIL_LOCK;
+			}
+
+			if (new_flags != entry->u.file.flags) {
+				entry->u.file.flags = new_flags;
+				hfs_cat_mark_dirty(entry);
+				hfs_file_fix_mode(entry);
+			}
+		}
+
+		/* Update CrDat if changed */
+		if (OVERLAPS(pos, end, struct hfs_cap_info, fi_ctime)) {
+			entry->create_date =
+				hfs_h_to_mtime(hfs_get_nl(meta.fi_ctime));
+			hfs_cat_mark_dirty(entry);
+		}
+
+		/* Update MdDat if changed */
+		if (OVERLAPS(pos, end, struct hfs_cap_info, fi_mtime)) {
+			entry->modify_date =
+				hfs_h_to_mtime(hfs_get_nl(meta.fi_mtime));
+			hfs_cat_mark_dirty(entry);
+		}
+	}
+
+	*ppos = last;
+	inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+	mark_inode_dirty(inode);
+	return count;
+}
diff --git a/fs/hfs/file_hdr.c b/fs/hfs/file_hdr.c
new file mode 100644
index 00000000000000..790c052e9e53b7
--- /dev/null
+++ b/fs/hfs/file_hdr.c
@@ -0,0 +1,1031 @@
+/*
+ * linux/fs/hfs/file_hdr.c
+ *
+ * Copyright (C) 1995-1997  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * This file contains the file_ops and inode_ops for the metadata
+ * files under the AppleDouble and Netatalk representations.
+ *
+ * The source code distributions of Netatalk, versions 1.3.3b2 and
+ * 1.4b2, were used as a specification of the location and format of
+ * files used by Netatalk's afpd.  No code from Netatalk appears in
+ * hfs_fs.  hfs_fs is not a work ``derived'' from Netatalk in the
+ * sense of intellectual property law.
+ *
+ * "XXX" in a comment is a note to myself to consider changing something.
+ *
+ * In function preconditions the term "valid" applied to a pointer to
+ * a structure means that the pointer is non-NULL and the structure it
+ * points to has all fields initialized to consistent values.
+ *
+ * XXX: Note the reason that there is not bmap() for AppleDouble
+ * header files is that dynamic nature of their structure make it
+ * very difficult to safely mmap them.  Maybe in the distant future
+ * I'll get bored enough to implement it.
+ */
+
+#include "hfs.h"
+#include <linux/hfs_fs_sb.h>
+#include <linux/hfs_fs_i.h>
+#include <linux/hfs_fs.h>
+
+/* prodos types */
+#define PRODOSI_FTYPE_DIR   0x0F
+#define PRODOSI_FTYPE_TEXT  0x04
+#define PRODOSI_FTYPE_8BIT  0xFF
+#define PRODOSI_FTYPE_16BIT 0xB3
+
+#define PRODOSI_AUXTYPE_DIR 0x0200
+
+/*================ Forward declarations ================*/
+static loff_t      hdr_llseek(struct file *, loff_t, int);
+static hfs_rwret_t hdr_read(struct file *, char *, hfs_rwarg_t, loff_t *);
+static hfs_rwret_t hdr_write(struct file *, const char *,
+			     hfs_rwarg_t, loff_t *);
+/*================ Global variables ================*/
+
+struct file_operations hfs_hdr_operations = {
+	llseek:		hdr_llseek,
+	read:		hdr_read,
+	write:		hdr_write,
+	fsync:		file_fsync,
+};
+
+struct inode_operations hfs_hdr_inode_operations = {
+	setattr:	hfs_notify_change_hdr,
+};
+
+const struct hfs_hdr_layout hfs_dbl_fil_hdr_layout = {
+	__constant_htonl(HFS_DBL_MAGIC),	/* magic   */
+	__constant_htonl(HFS_HDR_VERSION_2),	/* version */
+	6,					/* entries */
+	{					/* descr[] */
+		{HFS_HDR_FNAME, offsetof(struct hfs_dbl_hdr, real_name),   ~0},
+		{HFS_HDR_DATES, offsetof(struct hfs_dbl_hdr, create_time), 16},
+		{HFS_HDR_FINFO, offsetof(struct hfs_dbl_hdr, finderinfo),  32},
+		{HFS_HDR_MACI,  offsetof(struct hfs_dbl_hdr, fileinfo),     4},
+		{HFS_HDR_DID,   offsetof(struct hfs_dbl_hdr, cnid),         4},
+		{HFS_HDR_RSRC,  HFS_DBL_HDR_LEN,                           ~0}
+	},
+	{					/* order[] */
+		(struct hfs_hdr_descr *)&hfs_dbl_fil_hdr_layout.descr[0],
+		(struct hfs_hdr_descr *)&hfs_dbl_fil_hdr_layout.descr[1],
+		(struct hfs_hdr_descr *)&hfs_dbl_fil_hdr_layout.descr[2],
+		(struct hfs_hdr_descr *)&hfs_dbl_fil_hdr_layout.descr[3],
+		(struct hfs_hdr_descr *)&hfs_dbl_fil_hdr_layout.descr[4],
+		(struct hfs_hdr_descr *)&hfs_dbl_fil_hdr_layout.descr[5]
+	}
+};
+
+const struct hfs_hdr_layout hfs_dbl_dir_hdr_layout = {
+	__constant_htonl(HFS_DBL_MAGIC),	/* magic   */
+	__constant_htonl(HFS_HDR_VERSION_2),	/* version */
+	5,					/* entries */
+	{					/* descr[] */
+		{HFS_HDR_FNAME, offsetof(struct hfs_dbl_hdr, real_name),   ~0},
+		{HFS_HDR_DATES, offsetof(struct hfs_dbl_hdr, create_time), 16},
+		{HFS_HDR_FINFO, offsetof(struct hfs_dbl_hdr, finderinfo),  32},
+		{HFS_HDR_MACI,  offsetof(struct hfs_dbl_hdr, fileinfo),     4},
+		{HFS_HDR_DID,   offsetof(struct hfs_dbl_hdr, cnid),         4}
+	},
+	{					/* order[] */
+		(struct hfs_hdr_descr *)&hfs_dbl_dir_hdr_layout.descr[0],
+		(struct hfs_hdr_descr *)&hfs_dbl_dir_hdr_layout.descr[1],
+		(struct hfs_hdr_descr *)&hfs_dbl_dir_hdr_layout.descr[2],
+		(struct hfs_hdr_descr *)&hfs_dbl_dir_hdr_layout.descr[3],
+		(struct hfs_hdr_descr *)&hfs_dbl_dir_hdr_layout.descr[4]
+	}
+};
+
+const struct hfs_hdr_layout hfs_nat2_hdr_layout = {
+	__constant_htonl(HFS_DBL_MAGIC),	/* magic   */
+	__constant_htonl(HFS_HDR_VERSION_2),	/* version */
+	9,					/* entries */
+	{					/* descr[] */
+		{HFS_HDR_FNAME, offsetof(struct hfs_dbl_hdr, real_name),   ~0},
+		{HFS_HDR_COMNT, offsetof(struct hfs_dbl_hdr, comment),      0},
+		{HFS_HDR_DATES, offsetof(struct hfs_dbl_hdr, create_time), 16},
+		{HFS_HDR_FINFO, offsetof(struct hfs_dbl_hdr, finderinfo),  32},
+		{HFS_HDR_AFPI,  offsetof(struct hfs_dbl_hdr, fileinfo),     4},
+		{HFS_HDR_DID,   offsetof(struct hfs_dbl_hdr, cnid),         4},
+		{HFS_HDR_SNAME,  offsetof(struct hfs_dbl_hdr, short_name), ~0},
+		{HFS_HDR_PRODOSI,  offsetof(struct hfs_dbl_hdr, prodosi),   8},
+		{HFS_HDR_RSRC,  HFS_NAT_HDR_LEN,                           ~0}
+	},
+	{					/* order[] */
+		(struct hfs_hdr_descr *)&hfs_nat_hdr_layout.descr[0],
+		(struct hfs_hdr_descr *)&hfs_nat_hdr_layout.descr[1],
+		(struct hfs_hdr_descr *)&hfs_nat_hdr_layout.descr[2],
+		(struct hfs_hdr_descr *)&hfs_nat_hdr_layout.descr[3],
+		(struct hfs_hdr_descr *)&hfs_nat_hdr_layout.descr[4],
+		(struct hfs_hdr_descr *)&hfs_nat_hdr_layout.descr[5],
+		(struct hfs_hdr_descr *)&hfs_nat_hdr_layout.descr[6],
+		(struct hfs_hdr_descr *)&hfs_nat_hdr_layout.descr[7],
+		(struct hfs_hdr_descr *)&hfs_nat_hdr_layout.descr[8]
+	}
+};
+
+const struct hfs_hdr_layout hfs_nat_hdr_layout = {
+	__constant_htonl(HFS_DBL_MAGIC),	/* magic   */
+	__constant_htonl(HFS_HDR_VERSION_1),	/* version */
+	5,					/* entries */
+	{					/* descr[] */
+		{HFS_HDR_FNAME, offsetof(struct hfs_dbl_hdr, real_name),   ~0},
+		{HFS_HDR_COMNT, offsetof(struct hfs_dbl_hdr, comment),      0},
+		{HFS_HDR_OLDI,  offsetof(struct hfs_dbl_hdr, create_time), 16},
+		{HFS_HDR_FINFO, offsetof(struct hfs_dbl_hdr, finderinfo),  32},
+		{HFS_HDR_RSRC,  HFS_NAT_HDR_LEN,                           ~0},
+	},
+	{					/* order[] */
+		(struct hfs_hdr_descr *)&hfs_nat_hdr_layout.descr[0],
+		(struct hfs_hdr_descr *)&hfs_nat_hdr_layout.descr[1],
+		(struct hfs_hdr_descr *)&hfs_nat_hdr_layout.descr[2],
+		(struct hfs_hdr_descr *)&hfs_nat_hdr_layout.descr[3],
+		(struct hfs_hdr_descr *)&hfs_nat_hdr_layout.descr[4]
+	}
+};
+
+/*================ File-local variables ================*/
+
+static const char fstype[16] =
+	{'M','a','c','i','n','t','o','s','h',' ',' ',' ',' ',' ',' ',' '};
+
+/*================ File-local data types ================*/
+
+struct hdr_hdr {
+        hfs_lword_t	magic;
+        hfs_lword_t	version;
+        hfs_byte_t	filler[16];
+        hfs_word_t	entries;
+        hfs_byte_t	descrs[12*HFS_HDR_MAX];
+}  __attribute__((packed));
+
+/*================ File-local functions ================*/
+
+/*
+ * dlength()
+ */
+static int dlength(const struct hfs_hdr_descr *descr,
+		   const struct hfs_cat_entry *entry)
+{
+	hfs_u32 length = descr->length;
+
+	/* handle auto-sized entries */
+	if (length == ~0) {
+		switch (descr->id) {
+		case HFS_HDR_DATA:
+			if (entry->type == HFS_CDR_FIL) {
+				length = entry->u.file.data_fork.lsize;
+			} else {
+				length = 0;
+			}
+			break;
+
+		case HFS_HDR_RSRC:
+			if (entry->type == HFS_CDR_FIL) {
+				length = entry->u.file.rsrc_fork.lsize;
+			} else {
+				length = 0;
+			}
+			break;
+
+		case HFS_HDR_FNAME:
+			length = entry->key.CName.Len;
+			break;
+
+		case HFS_HDR_SNAME:
+		default:
+			length = 0;
+		}
+	}
+	return length;
+}
+
+/*
+ * hdr_build_meta()
+ */
+static void hdr_build_meta(struct hdr_hdr *meta,
+			   const struct hfs_hdr_layout *layout,
+			   const struct hfs_cat_entry *entry)
+{
+	const struct hfs_hdr_descr *descr;
+	hfs_byte_t *ptr;
+	int lcv;
+
+	hfs_put_nl(layout->magic,   meta->magic);
+	hfs_put_nl(layout->version, meta->version);
+	if (layout->version == htonl(HFS_HDR_VERSION_1)) {
+		memcpy(meta->filler, fstype, 16);
+	} else {
+		memset(meta->filler, 0, 16);
+	}
+	hfs_put_hs(layout->entries, meta->entries);
+	memset(meta->descrs, 0, sizeof(meta->descrs));
+	for (lcv = 0, descr = layout->descr, ptr = meta->descrs;
+	     lcv < layout->entries; ++lcv, ++descr, ptr += 12) {
+		hfs_put_hl(descr->id,             ptr);
+		hfs_put_hl(descr->offset,         ptr + 4);
+		hfs_put_hl(dlength(descr, entry), ptr + 8);
+	}
+}
+
+/*
+ * dup_layout ()
+ */
+static struct hfs_hdr_layout *dup_layout(const struct hfs_hdr_layout *old)
+{
+	struct hfs_hdr_layout *new;
+	int lcv;
+
+	if (HFS_NEW(new)) {
+		memcpy(new, old, sizeof(*new));
+		for (lcv = 0; lcv < new->entries; ++lcv) {
+			new->order[lcv] = (struct hfs_hdr_descr *)
+					  ((char *)(new->order[lcv]) +
+					   ((char *)new - (char *)old));
+		}
+	}
+	return new;
+}
+
+/*
+ * init_layout()
+ */
+static inline void init_layout(struct hfs_hdr_layout *layout,
+			       const hfs_byte_t *descrs)
+{
+	struct hfs_hdr_descr **base, **p, **q, *tmp;
+	int lcv, entries = layout->entries;
+
+	for (lcv = 0; lcv < entries; ++lcv, descrs += 12) {
+		layout->order[lcv] = &layout->descr[lcv];
+		layout->descr[lcv].id     = hfs_get_hl(descrs);
+		layout->descr[lcv].offset = hfs_get_hl(descrs + 4);
+		layout->descr[lcv].length = hfs_get_hl(descrs + 8);
+	}
+	for (lcv = layout->entries; lcv < HFS_HDR_MAX; ++lcv) {
+		layout->order[lcv] = NULL;
+		layout->descr[lcv].id     = 0;
+		layout->descr[lcv].offset = 0;
+		layout->descr[lcv].length = 0;
+	}
+
+	/* Sort the 'order' array using an insertion sort */
+	base = &layout->order[0];
+	for (p = (base+1); p < (base+entries); ++p) {
+		q=p;
+		while ((*q)->offset < (*(q-1))->offset) {
+			tmp = *q;
+			*q = *(q-1);
+			*(--q) = tmp;
+			if (q == base) break;
+		}
+	}
+}
+
+/*
+ * adjust_forks()
+ */
+static inline void adjust_forks(struct hfs_cat_entry *entry,
+				const struct hfs_hdr_layout *layout)
+{
+	int lcv;
+
+	for (lcv = 0; lcv < layout->entries; ++lcv) {
+		const struct hfs_hdr_descr *descr = &layout->descr[lcv];
+
+		if ((descr->id == HFS_HDR_DATA) &&
+		    (descr->length != entry->u.file.data_fork.lsize)) {
+			entry->u.file.data_fork.lsize = descr->length;
+			hfs_extent_adj(&entry->u.file.data_fork);
+		} else if ((descr->id == HFS_HDR_RSRC) &&
+			   (descr->length != entry->u.file.rsrc_fork.lsize)) {
+			entry->u.file.rsrc_fork.lsize = descr->length;
+			hfs_extent_adj(&entry->u.file.rsrc_fork);
+		}
+	}
+}
+
+/*
+ * get_dates()
+ */
+static void get_dates(const struct hfs_cat_entry *entry,
+		      const struct inode *inode,  hfs_u32 dates[3])
+{
+	dates[0] = hfs_m_to_htime(entry->create_date);
+	dates[1] = hfs_m_to_htime(entry->modify_date);
+	dates[2] = hfs_m_to_htime(entry->backup_date);
+}
+
+/*
+ * set_dates()
+ */
+static void set_dates(struct hfs_cat_entry *entry, struct inode *inode,
+		      const hfs_u32 *dates)
+{
+	hfs_u32 tmp;
+
+	tmp = hfs_h_to_mtime(dates[0]);
+	if (entry->create_date != tmp) {
+		entry->create_date = tmp;
+		hfs_cat_mark_dirty(entry);
+	}
+	tmp = hfs_h_to_mtime(dates[1]);
+	if (entry->modify_date != tmp) {
+		entry->modify_date = tmp;
+		inode->i_ctime = inode->i_atime = inode->i_mtime = 
+			hfs_h_to_utime(dates[1]);
+		hfs_cat_mark_dirty(entry);
+	}
+	tmp = hfs_h_to_mtime(dates[2]);
+	if (entry->backup_date != tmp) {
+		entry->backup_date = tmp;
+		hfs_cat_mark_dirty(entry);
+	}
+}
+
+loff_t hdr_llseek(struct file *file, loff_t offset, int origin)
+{
+	long long retval;
+
+	switch (origin) {
+		case 2:
+			offset += file->f_dentry->d_inode->i_size;
+			break;
+		case 1:
+			offset += file->f_pos;
+	}
+	retval = -EINVAL;
+	if (offset>=0 && offset<file->f_dentry->d_inode->i_size) {
+		if (offset != file->f_pos) {
+			file->f_pos = offset;
+			file->f_reada = 0;
+			file->f_version = ++event;
+		}
+		retval = offset;
+	}
+	return retval;
+}
+
+/*
+ * hdr_read()
+ *
+ * This is the read field in the inode_operations structure for
+ * header files.  The purpose is to transfer up to 'count' bytes
+ * from the file corresponding to 'inode', beginning at
+ * 'filp->offset' bytes into the file.	The data is transferred to
+ * user-space at the address 'buf'.  Returns the number of bytes
+ * successfully transferred.
+ */
+/* XXX: what about the entry count changing on us? */
+static hfs_rwret_t hdr_read(struct file * filp, char * buf, 
+			    hfs_rwarg_t count, loff_t *ppos)
+{
+	struct inode *inode = filp->f_dentry->d_inode;
+	struct hfs_cat_entry *entry = HFS_I(inode)->entry;
+	const struct hfs_hdr_layout *layout;
+	off_t start, length, offset;
+	loff_t pos = *ppos;
+	int left, lcv, read = 0;
+
+	if (!S_ISREG(inode->i_mode)) {
+		hfs_warn("hfs_hdr_read: mode = %07o\n",inode->i_mode);
+		return -EINVAL;
+	}
+
+	if (HFS_I(inode)->layout) {
+		layout = HFS_I(inode)->layout;
+	} else {
+		layout = HFS_I(inode)->default_layout;
+	}
+
+	/* Adjust count to fit within the bounds of the file */
+	if (pos != (unsigned)pos || pos >= inode->i_size || count <= 0) {
+		return 0;
+	} else if (count > inode->i_size - pos) {
+		count = inode->i_size - pos;
+	}
+
+	/* Handle the fixed-location portion */
+	length = sizeof(hfs_u32) + sizeof(hfs_u32) + 16 +
+		 sizeof(hfs_u16) + layout->entries * (3 * sizeof(hfs_u32));
+	if (pos < length) {
+		struct hdr_hdr meta;
+
+		left = length - pos;
+		if (left > count) {
+			left = count;
+		}
+
+		hdr_build_meta(&meta, layout, entry);
+		left -= copy_to_user(buf, ((char *)&meta) + pos, left);
+		count -= left;
+		read += left;
+		pos += left;
+		buf += left;
+	}
+	if (!count) {
+		goto done;
+	}
+
+	/* Handle the actual data */
+	for (lcv = 0; count && (lcv < layout->entries); ++lcv) {
+		const struct hfs_hdr_descr *descr = layout->order[lcv];
+		struct hfs_fork *fork;
+		char tmp[16], *p;
+		off_t limit;
+
+		/* stop reading if we run out of descriptors early */
+		if (!descr) {
+			break;
+		}
+
+		/* find start and length of this entry */
+		start = descr->offset;
+		length = dlength(descr, entry);
+
+		/* Skip to next entry if this one is empty or isn't needed */
+		if (!length || (pos >= start + length)) {
+			continue;
+		}
+
+		/* Pad with zeros to the start of this entry if needed */
+		if (pos < start) {
+			left = start - pos;
+			if (left > count) {
+				left = count;
+			}
+			clear_user(buf, left);
+			count -= left;
+			read += left;
+			pos += left;
+			buf += left;
+		}
+		if (!count) {
+			goto done;
+		}
+
+		/* locate and/or construct the data for this entry */
+		fork = NULL;
+		p = NULL;
+		switch (descr->id) {
+		case HFS_HDR_DATA:
+			fork = &entry->u.file.data_fork;
+			limit = fork->lsize;
+			break;
+
+		case HFS_HDR_RSRC:
+			fork = &entry->u.file.rsrc_fork;
+			limit = fork->lsize;
+			break;
+
+		case HFS_HDR_FNAME:
+			p = entry->key.CName.Name;
+			limit = entry->key.CName.Len;
+			break;
+
+		case HFS_HDR_OLDI:
+		case HFS_HDR_DATES:
+			get_dates(entry, inode, (hfs_u32 *)tmp);
+			if (descr->id == HFS_HDR_DATES) {
+				/* XXX: access date. hfsplus actually
+                                   has this. */
+				memcpy(tmp + 12, tmp + 4, 4);
+			} else if ((entry->type == HFS_CDR_FIL) &&
+				   (entry->u.file.flags & HFS_FIL_LOCK)) {
+				hfs_put_hl(HFS_AFP_RDONLY, tmp + 12);
+			} else {
+				hfs_put_nl(0, tmp + 12);
+			}
+			p = tmp;
+			limit = 16;
+			break;
+
+		case HFS_HDR_FINFO:
+			p = (char *)&entry->info;
+			limit = 32;
+			break;
+
+		case HFS_HDR_AFPI:
+			/* XXX: this needs to do more mac->afp mappings */
+			hfs_put_ns(0, tmp);
+			if ((entry->type == HFS_CDR_FIL) &&
+			    (entry->u.file.flags & HFS_FIL_LOCK)) {
+				hfs_put_hs(HFS_AFP_RDONLY, tmp + 2);
+			} else {
+				hfs_put_ns(0, tmp + 2);
+			}
+			p = tmp;
+			limit = 4;
+		        break;
+
+		case HFS_HDR_PRODOSI:
+			/* XXX: this needs to do mac->prodos translations */
+			memset(tmp, 0, 8);
+#if 0
+			hfs_put_ns(0, tmp); /* access */
+			hfs_put_ns(0, tmp); /* type */
+			hfs_put_nl(0, tmp); /* aux type */
+#endif
+			p = tmp;
+			limit = 8;
+		        break;
+
+		case HFS_HDR_MACI:
+			hfs_put_ns(0, tmp);
+			if (entry->type == HFS_CDR_FIL) {
+				hfs_put_hs(entry->u.file.flags, tmp + 2);
+			} else {
+				hfs_put_ns(entry->u.dir.flags, tmp + 2);
+			}
+			p = tmp;
+			limit = 4;
+			break;
+
+		case HFS_HDR_DID:
+		        /* if it's rootinfo, stick the next available did in
+			 * the did slot. */
+			limit = 4;
+			if (entry->cnid == htonl(HFS_ROOT_CNID)) {
+				struct hfs_mdb *mdb = entry->mdb;
+				const struct hfs_name *reserved = 
+				HFS_SB(mdb->sys_mdb)->s_reserved2;
+				
+				while (reserved->Len) {
+					if (hfs_streq(reserved->Name,
+						      reserved->Len,
+						      entry->key.CName.Name,
+						      entry->key.CName.Len)) {
+						hfs_put_hl(mdb->next_id, tmp);
+						p = tmp;
+						goto hfs_did_done;
+					}
+					reserved++;
+				}
+			}
+			p = (char *) &entry->cnid;
+hfs_did_done:
+			break;
+
+		case HFS_HDR_SNAME:
+		default:
+			limit = 0;
+		}
+		
+		/* limit the transfer to the available data
+		   of to the stated length of the entry. */
+		if (length > limit) {
+			length = limit;
+		}
+		offset = pos - start;
+		left = length - offset;
+		if (left > count) {
+			left = count;
+		}
+		if (left <= 0) {
+			continue;
+		}
+
+		/* transfer the data */
+		if (p) {
+			left -= copy_to_user(buf, p + offset, left);
+		} else if (fork) {
+			left = hfs_do_read(inode, fork, offset, buf, left,
+					   filp->f_reada != 0);
+			if (left > 0) {
+				filp->f_reada = 1;
+			} else if (!read) {
+				return left;
+			} else {
+				goto done;
+			}
+		}
+		count -= left;
+		read += left;
+		pos += left;
+		buf += left;
+	}
+
+	/* Pad the file out with zeros */
+	if (count) {
+		clear_user(buf, count);
+		read += count;
+		pos += count;
+	}
+		
+done:
+	if (read) {
+		inode->i_atime = CURRENT_TIME;
+		*ppos = pos;
+		mark_inode_dirty(inode);
+	}
+	return read;
+}
+
+/*
+ * hdr_write()
+ *
+ * This is the write() entry in the file_operations structure for
+ * header files.  The purpose is to transfer up to 'count' bytes
+ * to the file corresponding to 'inode' beginning at offset
+ * '*ppos' from user-space at the address 'buf'.
+ * The return value is the number of bytes actually transferred.
+ */
+static hfs_rwret_t hdr_write(struct file *filp, const char *buf,
+			     hfs_rwarg_t count, loff_t *ppos)
+{
+	struct inode *inode = filp->f_dentry->d_inode;
+        struct hfs_cat_entry *entry = HFS_I(inode)->entry;
+        struct hfs_hdr_layout *layout;
+        off_t start, length, offset;
+        int left, lcv, written = 0;
+	struct hdr_hdr meta;
+	int built_meta = 0;
+        loff_t pos;
+
+	if (!S_ISREG(inode->i_mode)) {
+		hfs_warn("hfs_hdr_write: mode = %07o\n", inode->i_mode);
+		return -EINVAL;
+	}
+
+	pos = (filp->f_flags & O_APPEND) ? inode->i_size : *ppos;
+
+	if (count <= 0 || pos != (unsigned)pos) {
+		return 0;
+	}
+
+	if (!HFS_I(inode)->layout) {
+		HFS_I(inode)->layout = dup_layout(HFS_I(inode)->default_layout);
+	}
+	layout = HFS_I(inode)->layout;
+
+	/* Handle the 'magic', 'version', 'filler' and 'entries' fields */
+	length = sizeof(hfs_u32) + sizeof(hfs_u32) + 16 + sizeof(hfs_u16);
+	if (pos < length) {
+		hdr_build_meta(&meta, layout, entry);
+		built_meta = 1;
+
+		left = length - pos;
+		if (left > count) {
+			left = count;
+		}
+
+		left -= copy_from_user(((char *)&meta) + pos, buf, left);
+		layout->magic   = hfs_get_nl(meta.magic);
+		layout->version = hfs_get_nl(meta.version);
+		layout->entries = hfs_get_hs(meta.entries);
+		if (layout->entries > HFS_HDR_MAX) {
+			/* XXX: should allocate slots dynamically */
+			hfs_warn("hfs_hdr_write: TRUNCATING TO %d "
+				 "DESCRIPTORS\n", HFS_HDR_MAX);
+			layout->entries = HFS_HDR_MAX;
+		}
+
+		count -= left;
+		written += left;
+		pos += left;
+		buf += left;
+	}
+	if (!count) {
+		goto done;
+	}
+
+	/* We know for certain how many entries we have, so process them */
+	length += layout->entries * 3 * sizeof(hfs_u32);
+	if (pos < length) {
+		if (!built_meta) {
+			hdr_build_meta(&meta, layout, entry);
+		}
+
+		left = length - pos;
+		if (left > count) {
+			left = count;
+		}
+
+		left -= copy_from_user(((char *)&meta) + pos, buf, left);
+		init_layout(layout, meta.descrs);
+
+		count -= left;
+		written += left;
+		pos += left;
+		buf += left;
+
+		/* Handle possible size changes for the forks */
+		if (entry->type == HFS_CDR_FIL) {
+			adjust_forks(entry, layout);
+			hfs_cat_mark_dirty(entry);
+		}
+	}
+
+	/* Handle the actual data */
+	for (lcv = 0; count && (lcv < layout->entries); ++lcv) {
+		struct hfs_hdr_descr *descr = layout->order[lcv];
+		struct hfs_fork *fork;
+		char tmp[16], *p;
+		off_t limit;
+
+		/* stop writing if we run out of descriptors early */
+		if (!descr) {
+			break;
+		}
+
+		/* find start and length of this entry */
+		start = descr->offset;
+		if ((descr->id == HFS_HDR_DATA) ||
+		    (descr->id == HFS_HDR_RSRC)) {
+			if (entry->type == HFS_CDR_FIL) {
+				length = 0x7fffffff - start;
+			} else {
+				continue;
+			}
+		} else {
+			length = dlength(descr, entry);
+		}
+
+		/* Trim length to avoid overlap with the next entry */
+		if (layout->order[lcv+1] &&
+		    ((start + length) > layout->order[lcv+1]->offset)) {
+			length = layout->order[lcv+1]->offset - start;
+		}
+
+		/* Skip to next entry if this one is empty or isn't needed */
+		if (!length || (pos >= start + length)) {
+			continue;
+		}
+
+		/* Skip any padding that may exist between entries */
+		if (pos < start) {
+			left = start - pos;
+			if (left > count) {
+				left = count;
+			}
+			count -= left;
+			written += left;
+			pos += left;
+			buf += left;
+		}
+		if (!count) {
+			goto done;
+		}
+
+		/* locate and/or construct the data for this entry */
+		fork = NULL;
+		p = NULL;
+		switch (descr->id) {
+		case HFS_HDR_DATA:
+#if 0
+/* Can't yet write to the data fork via a header file, since there is the
+ * possibility to write via the data file, and the only locking is at the
+ * inode level.
+ */
+			fork = &entry->u.file.data_fork;
+			limit = length;
+#else
+			limit = 0;
+#endif
+			break;
+
+		case HFS_HDR_RSRC:
+			fork = &entry->u.file.rsrc_fork;
+			limit = length;
+			break;
+
+		case HFS_HDR_OLDI:
+		case HFS_HDR_DATES:
+			get_dates(entry, inode, (hfs_u32 *)tmp);
+			if (descr->id == HFS_HDR_DATES) {
+				memcpy(tmp + 12, tmp + 4, 4);
+			} else if ((entry->type == HFS_CDR_FIL) &&
+				   (entry->u.file.flags & HFS_FIL_LOCK)) {
+				hfs_put_hl(HFS_AFP_RDONLY, tmp + 12);
+			} else {
+				hfs_put_nl(0, tmp + 12);
+			}
+			p = tmp;
+			limit = 16;
+			break;
+
+		case HFS_HDR_FINFO:
+			p = (char *)&entry->info;
+			limit = 32;
+			break;
+
+		case HFS_HDR_AFPI:
+			hfs_put_ns(0, tmp);
+			if ((entry->type == HFS_CDR_FIL) &&
+			    (entry->u.file.flags & HFS_FIL_LOCK)) {
+				hfs_put_hs(HFS_AFP_RDONLY, tmp + 2);
+			} else {
+				hfs_put_ns(0, tmp + 2);
+			}			
+			p = tmp;
+			limit = 4;
+			break;
+
+		case HFS_HDR_PRODOSI:
+			/* XXX: this needs to do mac->prodos translations */
+			memset(tmp, 0, 8); 
+#if 0
+			hfs_put_ns(0, tmp); /* access */
+			hfs_put_ns(0, tmp); /* type */
+			hfs_put_nl(0, tmp); /* aux type */
+#endif
+			p = tmp;
+			limit = 8;
+		        break;
+
+		case HFS_HDR_MACI:
+			hfs_put_ns(0, tmp);
+			if (entry->type == HFS_CDR_FIL) {
+				hfs_put_hs(entry->u.file.flags, tmp + 2);
+			} else {
+				hfs_put_ns(entry->u.dir.flags, tmp + 2);
+			}
+			p = tmp;
+			limit = 4;
+			break;
+
+		case HFS_HDR_FNAME:	/* Can't rename a file this way */
+		case HFS_HDR_DID:       /* can't specify a did this way */
+		default:
+			limit = 0;
+		}
+		
+		/* limit the transfer to the available data
+		   of to the stated length of the entry. */
+		if (length > limit) {
+			length = limit;
+		}
+		offset = pos - start;
+		left = length - offset;
+		if (left > count) {
+			left = count;
+		}
+		if (left <= 0) {
+			continue;
+		}
+
+		/* transfer the data from user space */
+		if (p) {
+			left -= copy_from_user(p + offset, buf, left);
+		} else if (fork) {
+			left = hfs_do_write(inode, fork, offset, buf, left);
+		}
+
+		/* process the data */
+		switch (descr->id) {
+		case HFS_HDR_OLDI:
+			set_dates(entry, inode, (hfs_u32 *)tmp);
+			if (entry->type == HFS_CDR_FIL) {
+				hfs_u8 new_flags = entry->u.file.flags;
+
+				if (hfs_get_nl(tmp+12) & htonl(HFS_AFP_WRI)) {
+					new_flags |= HFS_FIL_LOCK;
+				} else {
+					new_flags &= ~HFS_FIL_LOCK;
+				}
+
+				if (new_flags != entry->u.file.flags) {
+					entry->u.file.flags = new_flags;
+					hfs_cat_mark_dirty(entry);
+					hfs_file_fix_mode(entry);
+				}
+			}
+			break;
+
+		case HFS_HDR_DATES:
+			set_dates(entry, inode, (hfs_u32 *)tmp);
+			break;
+
+		case HFS_HDR_FINFO:
+			hfs_cat_mark_dirty(entry);
+			break;
+
+		case HFS_HDR_MACI:
+			if (entry->type == HFS_CDR_DIR) {
+				hfs_u16 new_flags = hfs_get_ns(tmp + 2);
+
+				if (entry->u.dir.flags != new_flags) {
+					entry->u.dir.flags = new_flags;
+					hfs_cat_mark_dirty(entry);
+				}
+			} else {
+				hfs_u8 new_flags = tmp[3];
+				hfs_u8 changed = entry->u.file.flags^new_flags;
+				
+				if (changed) {
+					entry->u.file.flags = new_flags;
+					hfs_cat_mark_dirty(entry);
+					if (changed & HFS_FIL_LOCK) {
+						hfs_file_fix_mode(entry);
+					}
+				}
+			}
+			break;
+
+		case HFS_HDR_DATA:
+		case HFS_HDR_RSRC:
+			if (left <= 0) {
+				if (!written) {
+					return left;
+				} else {
+					goto done;
+				}
+			} else if (fork->lsize > descr->length) {
+				descr->length = fork->lsize;
+			}
+			break;
+
+		case HFS_HDR_FNAME:	/* Can't rename a file this way */
+		case HFS_HDR_DID:       /* Can't specify a did this way */
+		case HFS_HDR_PRODOSI:   /* not implemented yet */
+		case HFS_HDR_AFPI:      /* ditto */
+		default:
+			break;
+		}
+
+		count -= left;
+		written += left;
+		pos += left;
+		buf += left;
+	}
+
+	/* Skip any padding at the end */
+	if (count) {
+		written += count;
+		pos += count;
+	}
+		
+done:
+	*ppos = pos;
+	if (written > 0) {
+	        if (pos > inode->i_size)
+		        inode->i_size = pos;
+	        inode->i_mtime = inode->i_atime = CURRENT_TIME;
+		mark_inode_dirty(inode);
+	}
+	return written;
+}
+
+/*
+ * hdr_truncate()
+ *
+ * This is the truncate field in the inode_operations structure for
+ * header files.  The purpose is to allocate or release blocks as needed
+ * to satisfy a change in file length.
+ */
+void hdr_truncate(struct inode *inode, size_t size)
+{
+	struct hfs_cat_entry *entry = HFS_I(inode)->entry;
+	struct hfs_hdr_layout *layout;
+	int lcv, last;
+
+	inode->i_size = size;
+	if (!HFS_I(inode)->layout) {
+		HFS_I(inode)->layout = dup_layout(HFS_I(inode)->default_layout);
+	}
+	layout = HFS_I(inode)->layout;
+
+	last = layout->entries - 1;
+	for (lcv = 0; lcv <= last; ++lcv) {
+		struct hfs_hdr_descr *descr = layout->order[lcv];
+		struct hfs_fork *fork;
+		hfs_u32 offset;
+
+		if (!descr) {
+			break;
+		}
+
+		if (descr->id == HFS_HDR_RSRC) {
+			fork = &entry->u.file.rsrc_fork;
+#if 0
+/* Can't yet truncate the data fork via a header file, since there is the
+ * possibility to truncate via the data file, and the only locking is at
+ * the inode level.
+ */
+		} else if (descr->id == HFS_HDR_DATA) {
+			fork = &entry->u.file.data_fork;
+#endif
+		} else {
+			continue;
+		}
+
+		offset = descr->offset;
+
+		if ((lcv != last) && ((offset + descr->length) <= size)) {
+			continue;
+		}
+
+		if (offset < size) {
+			descr->length = size - offset;
+		} else {
+			descr->length = 0;
+		}
+		if (fork->lsize != descr->length) {
+			fork->lsize = descr->length;
+			hfs_extent_adj(fork);
+			hfs_cat_mark_dirty(entry);
+		}
+	}
+}
diff --git a/fs/hfs/hfs.h b/fs/hfs/hfs.h
new file mode 100644
index 00000000000000..f266bc0c421357
--- /dev/null
+++ b/fs/hfs/hfs.h
@@ -0,0 +1,550 @@
+/* 
+ * linux/fs/hfs/hfs.h
+ *
+ * Copyright (C) 1995-1997  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * "XXX" in a comment is a note to myself to consider changing something.
+ */
+
+#ifndef _HFS_H
+#define _HFS_H
+
+#include <linux/hfs_sysdep.h>
+
+#define HFS_NEW(X)	((X) = hfs_malloc(sizeof(*(X))))
+#define HFS_DELETE(X)	do { hfs_free((X), sizeof(*(X))); (X) = NULL; } \
+                        while (0)
+ 
+/* offsets to various blocks */
+#define HFS_DD_BLK		0 /* Driver Descriptor block */
+#define HFS_PMAP_BLK		1 /* First block of partition map */
+#define HFS_MDB_BLK		2 /* Block (w/i partition) of MDB */
+
+/* magic numbers for various disk blocks */
+#define HFS_DRVR_DESC_MAGIC	0x4552 /* "ER": driver descriptor map */
+#define HFS_OLD_PMAP_MAGIC	0x5453 /* "TS": old-type partition map */
+#define HFS_NEW_PMAP_MAGIC	0x504D /* "PM": new-type partition map */
+#define HFS_SUPER_MAGIC		0x4244 /* "BD": HFS MDB (super block) */
+#define HFS_MFS_SUPER_MAGIC	0xD2D7 /* MFS MDB (super block) */
+
+/* magic numbers for various internal structures */
+#define HFS_FILE_MAGIC		0x4801
+#define HFS_DIR_MAGIC		0x4802
+#define HFS_MDB_MAGIC		0x4803
+#define HFS_EXT_MAGIC		0x4804 /* XXX currently unused */
+#define HFS_BREC_MAGIC		0x4811 /* XXX currently unused */
+#define HFS_BTREE_MAGIC		0x4812
+#define HFS_BNODE_MAGIC		0x4813
+
+/* various FIXED size parameters */
+#define HFS_SECTOR_SIZE		512    /* size of an HFS sector */
+#define HFS_SECTOR_SIZE_BITS	9      /* log_2(HFS_SECTOR_SIZE) */
+#define HFS_NAMELEN		31     /* maximum length of an HFS filename */
+#define HFS_NAMEMAX		(3*31) /* max size of ENCODED filename */
+#define HFS_BM_MAXBLOCKS	(16)   /* max number of bitmap blocks */
+#define HFS_BM_BPB (8*HFS_SECTOR_SIZE) /* number of bits per bitmap block */
+#define HFS_MAX_VALENCE		32767U
+#define HFS_FORK_MAX		(0x7FFFFFFF)
+
+/* Meanings of the drAtrb field of the MDB,
+ * Reference: _Inside Macintosh: Files_ p. 2-61
+ */
+#define HFS_SB_ATTRIB_HLOCK 0x0080
+#define HFS_SB_ATTRIB_CLEAN 0x0100
+#define HFS_SB_ATTRIB_SPARED 0x0200
+#define HFS_SB_ATTRIB_SLOCK 0x8000
+
+/* 2**16 - 1 */
+#define HFS_USHRT_MAX	65535
+
+/* Some special File ID numbers */
+#define HFS_POR_CNID	1	/* Parent Of the Root */
+#define HFS_ROOT_CNID	2	/* ROOT directory */
+#define HFS_EXT_CNID	3	/* EXTents B-tree */
+#define HFS_CAT_CNID	4	/* CATalog B-tree */
+#define HFS_BAD_CNID	5	/* BAD blocks file */
+#define HFS_ALLOC_CNID  6       /* ALLOCation file (HFS+) */
+#define HFS_START_CNID  7       /* STARTup file (HFS+) */
+#define HFS_ATTR_CNID   8       /* ATTRibutes file (HFS+) */
+#define HFS_EXCH_CNID  15       /* ExchangeFiles temp id */
+
+/* values for hfs_cat_rec.cdrType */
+#define HFS_CDR_DIR    0x01    /* folder (directory) */
+#define HFS_CDR_FIL    0x02    /* file */
+#define HFS_CDR_THD    0x03    /* folder (directory) thread */
+#define HFS_CDR_FTH    0x04    /* file thread */
+
+/* legal values for hfs_ext_key.FkType and hfs_file.fork */
+#define HFS_FK_DATA	0x00
+#define HFS_FK_RSRC	0xFF
+
+/* bits in hfs_fil_entry.Flags */
+#define HFS_FIL_LOCK	0x01  /* locked */
+#define HFS_FIL_THD	0x02  /* file thread */
+#define HFS_FIL_DOPEN   0x04  /* data fork open */
+#define HFS_FIL_ROPEN   0x08  /* resource fork open */
+#define HFS_FIL_DIR     0x10  /* directory (always clear) */
+#define HFS_FIL_RSRV1   0x20  /* reserved */
+#define HFS_FIL_NOCOPY  0x40  /* copy-protected file */
+#define HFS_FIL_USED	0x80  /* open */
+
+/* bits in hfs_dir_entry.Flags. dirflags is 16 bits. */
+#define HFS_DIR_LOCK        0x01  /* locked */
+#define HFS_DIR_THD         0x02  /* directory thread */
+#define HFS_DIR_INEXPFOLDER 0x04  /* in a shared area */
+#define HFS_DIR_MOUNTED     0x08  /* mounted */
+#define HFS_DIR_DIR         0x10  /* directory (always set) */
+#define HFS_DIR_EXPFOLDER   0x20  /* share point */
+#define HFS_DIR_RSRV1       0x40  /* reserved */
+#define HFS_DIR_RSRV2       0x80  /* reserved */
+
+/* Access types used when requesting access to a B-node */
+#define HFS_LOCK_NONE	0x0000	/* Illegal */
+#define HFS_LOCK_READ	0x0001	/* read-only access */
+#define HFS_LOCK_RESRV	0x0002	/* might potentially modify */
+#define HFS_LOCK_WRITE	0x0003	/* will modify now (exclusive access) */
+#define HFS_LOCK_MASK	0x000f
+
+/* Flags field of the hfs_path_elem */
+#define HFS_BPATH_FIRST		0x0100
+#define HFS_BPATH_OVERFLOW	0x0200
+#define HFS_BPATH_UNDERFLOW	0x0400
+#define HFS_BPATH_MASK		0x0f00
+
+/* Flags for hfs_bfind() */
+#define HFS_BFIND_EXACT		0x0010
+#define HFS_BFIND_LOCK		0x0020
+
+/* Modes for hfs_bfind() */
+#define HFS_BFIND_WRITE   (HFS_LOCK_RESRV|HFS_BFIND_EXACT|HFS_BFIND_LOCK)
+#define HFS_BFIND_READ_EQ (HFS_LOCK_READ|HFS_BFIND_EXACT)
+#define HFS_BFIND_READ_LE (HFS_LOCK_READ)
+#define HFS_BFIND_INSERT  (HFS_LOCK_RESRV|HFS_BPATH_FIRST|HFS_BPATH_OVERFLOW)
+#define HFS_BFIND_DELETE \
+	 (HFS_LOCK_RESRV|HFS_BFIND_EXACT|HFS_BPATH_FIRST|HFS_BPATH_UNDERFLOW)
+
+/*======== HFS structures as they appear on the disk ========*/
+
+/* Pascal-style string of up to 31 characters */
+struct hfs_name {
+	hfs_byte_t	Len;
+	hfs_byte_t	Name[31];
+} __attribute__((packed));
+
+typedef struct {
+	hfs_word_t	v;
+	hfs_word_t	h;
+} hfs_point_t;
+
+typedef struct {
+	hfs_word_t	top;
+	hfs_word_t	left;
+	hfs_word_t	bottom;
+	hfs_word_t	right;
+} hfs_rect_t;
+
+typedef struct {
+	hfs_lword_t	 fdType;
+	hfs_lword_t	 fdCreator;
+	hfs_word_t	 fdFlags;
+	hfs_point_t	 fdLocation;
+	hfs_word_t	 fdFldr;
+} __attribute__((packed)) hfs_finfo_t;
+
+typedef struct {
+	hfs_word_t	fdIconID;
+	hfs_byte_t	fdUnused[8];
+	hfs_word_t	fdComment;
+	hfs_lword_t	fdPutAway;
+} __attribute__((packed)) hfs_fxinfo_t;
+
+typedef struct {
+	hfs_rect_t	frRect;
+	hfs_word_t	frFlags;
+	hfs_point_t	frLocation;
+	hfs_word_t	frView;
+} __attribute__((packed)) hfs_dinfo_t;
+
+typedef struct {
+	hfs_point_t	frScroll;
+	hfs_lword_t	frOpenChain;
+	hfs_word_t	frUnused;
+	hfs_word_t	frComment;
+	hfs_lword_t	frPutAway;
+} __attribute__((packed)) hfs_dxinfo_t;
+
+union hfs_finder_info {
+	struct {
+		hfs_finfo_t	finfo;
+		hfs_fxinfo_t	fxinfo;
+	} file;
+	struct {
+		hfs_dinfo_t	dinfo;
+		hfs_dxinfo_t	dxinfo;
+	} dir;
+};
+
+/* A btree record key on disk */
+struct hfs_bkey {
+	hfs_byte_t	KeyLen;		/* number of bytes in the key */
+	hfs_byte_t	value[1];	/* (KeyLen) bytes of key */
+} __attribute__((packed));
+
+/* Cast to a pointer to a generic bkey */
+#define	HFS_BKEY(X)	(((void)((X)->KeyLen)), ((struct hfs_bkey *)(X)))
+
+/* The key used in the catalog b-tree: */
+struct hfs_cat_key {
+	hfs_byte_t	KeyLen;	/* number of bytes in the key */
+	hfs_byte_t	Resrv1;	/* padding */
+	hfs_lword_t	ParID;	/* CNID of the parent dir */
+	struct hfs_name	CName;	/* The filename of the entry */
+} __attribute__((packed));
+
+/* The key used in the extents b-tree: */
+struct hfs_ext_key {
+	hfs_byte_t	KeyLen;	/* number of bytes in the key */
+	hfs_byte_t	FkType;	/* HFS_FK_{DATA,RSRC} */
+	hfs_lword_t	FNum;	/* The File ID of the file */
+	hfs_word_t	FABN;	/* allocation blocks number*/
+} __attribute__((packed));
+
+/*======== Data structures kept in memory ========*/
+
+/*
+ * struct hfs_mdb
+ *
+ * The fields from the MDB of an HFS filesystem
+ */
+struct hfs_mdb {
+	int			magic;		/* A magic number */
+	unsigned char		vname[28];	/* The volume name */
+	hfs_sysmdb		sys_mdb;	/* superblock */
+	hfs_buffer		buf;		/* The hfs_buffer
+						   holding the real
+						   superblock (aka VIB
+						   or MDB) */
+	hfs_buffer		alt_buf;	/* The hfs_buffer holding
+						   the alternate superblock */
+	hfs_buffer		bitmap[16];	/* The hfs_buffer holding the
+						   allocation bitmap */
+	struct hfs_btree *	ext_tree;	/* Information about
+						   the extents b-tree */
+	struct hfs_btree *	cat_tree;	/* Information about
+						   the catalog b-tree */
+	hfs_u32			file_count;	/* The number of
+						   regular files in
+						   the filesystem */
+	hfs_u32			dir_count;	/* The number of
+						   directories in the
+						   filesystem */
+	hfs_u32			next_id;	/* The next available
+						   file id number */
+	hfs_u32			clumpablks;	/* The number of allocation
+						   blocks to try to add when
+						   extending a file */
+	hfs_u32			write_count;	/* The number of MDB
+						   writes (a sort of
+						   version number) */
+	hfs_u32			fs_start;	/* The first 512-byte
+						   block represented
+						   in the bitmap */
+	hfs_u32			create_date;	/* In network byte-order */
+	hfs_u32			modify_date;	/* In network byte-order */
+	hfs_u32			backup_date;	/* In network byte-order */
+	hfs_u16			root_files;	/* The number of
+						   regular
+						   (non-directory)
+						   files in the root
+						   directory */
+	hfs_u16			root_dirs;	/* The number of
+						   directories in the
+						   root directory */
+	hfs_u16			fs_ablocks;	/* The number of
+						   allocation blocks
+						   in the filesystem */
+	hfs_u16			free_ablocks;	/* The number of unused
+						   allocation blocks
+						   in the filesystem */
+	hfs_u32			alloc_blksz;	/* The number of
+						   512-byte blocks per
+						   "allocation block" */
+	hfs_u16			attrib;		/* Attribute word */
+	hfs_wait_queue		rename_wait;
+	int			rename_lock;
+	hfs_wait_queue		bitmap_wait;
+	int			bitmap_lock;
+        struct list_head        entry_dirty;
+};
+
+/*
+ * struct hfs_extent
+ *
+ * The offset to allocation block mapping for a given file is
+ * contained in a series of these structures.  Each (struct
+ * hfs_extent) records up to three runs of contiguous allocation
+ * blocks.  An allocation block is a contiguous group of physical
+ * blocks.
+ */
+struct hfs_extent {
+	int		   magic;     /* A magic number */
+	unsigned short	   start;     /* Where in the file this record
+					 begins (in allocation blocks) */
+	unsigned short	   end;	      /* Where in the file this record
+					 ends (in allocation blocks) */
+	unsigned short	   block[3];  /* The allocation block on disk which
+					 begins this extent */
+	unsigned short	   length[3]; /* The number of allocation blocks
+					 in this extent */
+	struct hfs_extent  *next;     /* Next extent record for this file */
+	struct hfs_extent  *prev;     /* Previous extent record for this file */
+	int		   count;     /* Number of times it is used */
+};
+
+/*
+ * struct hfs_dir 
+ *
+ * This structure holds information specific
+ * to a directory in an HFS filesystem.
+ */
+struct hfs_dir {		
+	int		magic;		/* A magic number */
+	hfs_u16		flags;
+	hfs_u16		dirs;		/* Number of directories in this one */
+	hfs_u16		files;		/* Number of files in this directory */
+	int		readers;
+	hfs_wait_queue	read_wait;
+	int		writers;
+	hfs_wait_queue	write_wait;
+};
+
+/*
+ * struct hfs_fork
+ *
+ * This structure holds the information
+ * specific to a single fork of a file.
+ */
+struct hfs_fork {
+	struct hfs_cat_entry	*entry;    /* The file this fork is part of */
+	struct hfs_extent	first;     /* The first extent record for
+						 this fork */
+	struct hfs_extent	*cache;    /* The most-recently accessed
+						 extent record for this fork */
+	hfs_u32			lsize;     /* The logical size in bytes */
+	hfs_u32			psize;     /* The phys size (512-byte blocks) */
+        hfs_u8			fork;      /* Which fork is this? */
+};
+
+/*
+ * struct hfs_file 
+ *
+ * This structure holds information specific
+ * to a file in an HFS filesystem.
+ */
+struct hfs_file {
+	int		   magic;
+	struct hfs_fork    data_fork;
+	struct hfs_fork    rsrc_fork;
+	hfs_u16		   clumpablks;
+	hfs_u8		   flags;
+};
+
+/*
+ * struct hfs_file 
+ *
+ * This structure holds information about a
+ * file or directory in an HFS filesystem.
+ *
+ * 'wait' must remain 1st and 'hash' 2nd since we do some pointer arithmetic.
+ */
+struct hfs_cat_entry {
+	hfs_wait_queue		wait;
+        struct list_head        hash;
+        struct list_head        list;
+	struct hfs_mdb		*mdb;
+	hfs_sysentry		sys_entry;
+	struct hfs_cat_key	key;
+	union hfs_finder_info	info;
+	hfs_u32			cnid;		/* In network byte-order */
+	hfs_u32			create_date;	/* In network byte-order */
+	hfs_u32			modify_date;	/* In network byte-order */
+	hfs_u32			backup_date;	/* In network byte-order */
+	unsigned short		count;
+        unsigned long           state;
+	hfs_u8			type;
+	union {
+		struct hfs_dir	dir;
+		struct hfs_file file;
+	} u;
+};
+
+/* hfs entry state bits */
+#define HFS_DIRTY        1
+#define HFS_KEYDIRTY     2
+#define HFS_LOCK         4
+#define HFS_DELETED      8
+
+/* 
+ * struct hfs_bnode_ref
+ *
+ * A pointer to a (struct hfs_bnode) and the type of lock held on it.
+ */
+struct hfs_bnode_ref {
+        struct hfs_bnode *bn;
+        int lock_type;
+};
+
+/*
+ * struct hfs_belem
+ *
+ * An element of the path from the root of a B-tree to a leaf.
+ * Includes the reference to a (struct hfs_bnode), the index of
+ * the appropriate record in that node, and some flags.
+ */
+struct hfs_belem {
+	struct hfs_bnode_ref	bnr;
+	int			record;
+	int			flags;
+};
+
+/*
+ * struct hfs_brec
+ *
+ * The structure returned by hfs_bfind() to describe the requested record.
+ */
+struct hfs_brec {
+	int			keep_flags;
+	struct hfs_btree	*tree;
+	struct hfs_belem	*top;
+	struct hfs_belem	*bottom;
+	struct hfs_belem	elem[9];
+	struct hfs_bkey		*key;
+	void			*data;	/* The actual data */
+};
+
+/*================ Function prototypes ================*/
+
+/* bdelete.c */
+extern int hfs_bdelete(struct hfs_btree *, const struct hfs_bkey *);
+
+/* bfind.c */
+extern void hfs_brec_relse(struct hfs_brec *, struct hfs_belem *);
+extern int hfs_bsucc(struct hfs_brec *, int);
+extern int hfs_bfind(struct hfs_brec *, struct hfs_btree *,
+		     const struct hfs_bkey *, int);
+ 
+/* binsert.c */
+extern int hfs_binsert(struct hfs_btree *, const struct hfs_bkey *,
+		       const void *, hfs_u16);
+
+/* bitmap.c */
+extern hfs_u16 hfs_vbm_count_free(const struct hfs_mdb *, hfs_u16);
+extern hfs_u16 hfs_vbm_search_free(const struct hfs_mdb *, hfs_u16 *);
+extern int hfs_set_vbm_bits(struct hfs_mdb *, hfs_u16, hfs_u16);
+extern int hfs_clear_vbm_bits(struct hfs_mdb *, hfs_u16, hfs_u16);
+
+/* bitops.c */
+extern hfs_u32 hfs_find_zero_bit(const hfs_u32 *, hfs_u32, hfs_u32);
+extern hfs_u32 hfs_count_zero_bits(const hfs_u32 *, hfs_u32, hfs_u32);
+
+/* btree.c */
+extern struct hfs_btree *hfs_btree_init(struct hfs_mdb *, ino_t,
+				        hfs_byte_t *, hfs_u32, hfs_u32);
+extern void hfs_btree_free(struct hfs_btree *);
+extern void hfs_btree_commit(struct hfs_btree *, hfs_byte_t *, hfs_lword_t);
+
+/* catalog.c */
+extern void hfs_cat_init(void);
+extern void hfs_cat_put(struct hfs_cat_entry *);
+extern void hfs_cat_mark_dirty(struct hfs_cat_entry *);
+extern struct hfs_cat_entry *hfs_cat_get(struct hfs_mdb *,
+					 const struct hfs_cat_key *);
+
+extern void hfs_cat_invalidate(struct hfs_mdb *);
+extern void hfs_cat_commit(struct hfs_mdb *);
+extern void hfs_cat_free(void);
+
+extern int hfs_cat_compare(const struct hfs_cat_key *,
+			   const struct hfs_cat_key *);
+extern void hfs_cat_build_key(hfs_u32, const struct hfs_name *,
+			      struct hfs_cat_key *);
+extern struct hfs_cat_entry *hfs_cat_parent(struct hfs_cat_entry *);
+
+extern int hfs_cat_open(struct hfs_cat_entry *, struct hfs_brec *);
+extern int hfs_cat_next(struct hfs_cat_entry *, struct hfs_brec *,
+			hfs_u16, hfs_u32 *, hfs_u8 *);
+extern void hfs_cat_close(struct hfs_cat_entry *, struct hfs_brec *);
+
+extern int hfs_cat_create(struct hfs_cat_entry *, struct hfs_cat_key *,
+			  hfs_u8, hfs_u32, hfs_u32, struct hfs_cat_entry **);
+extern int hfs_cat_mkdir(struct hfs_cat_entry *, struct hfs_cat_key *,
+			 struct hfs_cat_entry **);
+extern int hfs_cat_delete(struct hfs_cat_entry *, struct hfs_cat_entry *, int);
+extern int hfs_cat_move(struct hfs_cat_entry *, struct hfs_cat_entry *,
+			struct hfs_cat_entry *, struct hfs_cat_key *,
+			struct hfs_cat_entry **);
+
+/* extent.c */
+extern int hfs_ext_compare(const struct hfs_ext_key *,
+			   const struct hfs_ext_key *);
+extern void hfs_extent_in(struct hfs_fork *, const hfs_byte_t *);
+extern void hfs_extent_out(const struct hfs_fork *, hfs_byte_t *);
+extern int hfs_extent_map(struct hfs_fork *, int, int);
+extern void hfs_extent_adj(struct hfs_fork *);
+extern void hfs_extent_free(struct hfs_fork *);
+
+/* file.c */
+extern int hfs_get_block(struct inode *, long, struct buffer_head *, int);
+
+/* mdb.c */
+extern struct hfs_mdb *hfs_mdb_get(hfs_sysmdb, int, hfs_s32);
+extern void hfs_mdb_commit(struct hfs_mdb *, int);
+extern void hfs_mdb_put(struct hfs_mdb *, int);
+
+/* part_tbl.c */
+extern int hfs_part_find(hfs_sysmdb, int, int, hfs_s32 *, hfs_s32 *);
+
+/* string.c */
+extern unsigned int hfs_strhash(const unsigned char *, unsigned int);
+extern int hfs_strcmp(const unsigned char *, unsigned int, 
+		      const unsigned char *, unsigned int);
+extern int hfs_streq(const unsigned char *, unsigned int, 
+		     const unsigned char *, unsigned int);
+extern void hfs_tolower(unsigned char *, int);
+
+static __inline__ struct dentry 
+*hfs_lookup_dentry(struct dentry *base, const char *name, const int len)
+{
+  struct qstr this;
+
+  this.name = name;
+  this.len = len;
+  this.hash = hfs_strhash(name, len);
+
+  return d_lookup(base, &this);
+}
+
+/* drop a dentry for one of the special directories.
+ * it's in the form of base/name/dentry. */
+static __inline__ void hfs_drop_special(struct dentry *base,
+					const struct hfs_name *name,
+					struct dentry *dentry)
+{
+  struct dentry *dparent, *de;
+  
+  dparent = hfs_lookup_dentry(base, name->Name, name->Len);
+  if (dparent) {
+	  de = hfs_lookup_dentry(dparent, dentry->d_name.name, 
+				 dentry->d_name.len);
+	  if (de) {
+		  if (!de->d_inode)
+			  d_drop(de);
+		  dput(de);
+	  }
+	  dput(dparent);
+  }
+}
+
+extern struct dentry_operations hfs_dentry_operations;
+#endif
diff --git a/fs/hfs/hfs_btree.h b/fs/hfs/hfs_btree.h
new file mode 100644
index 00000000000000..c3371bfa883dd1
--- /dev/null
+++ b/fs/hfs/hfs_btree.h
@@ -0,0 +1,290 @@
+/*
+ * linux/fs/hfs/hfs_btree.h
+ *
+ * Copyright (C) 1995-1997  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * This file contains the declarations of the private B-tree
+ * structures and functions.
+ *
+ * "XXX" in a comment is a note to myself to consider changing something.
+ */
+
+#ifndef _HFS_BTREE_H
+#define _HFS_BTREE_H
+
+#include "hfs.h"
+
+/*================ Variable-like macros ================*/
+
+/* The stickiness of a (struct hfs_bnode) */
+#define HFS_NOT_STICKY	0
+#define HFS_STICKY	1
+
+/* The number of hash buckets in a B-tree's bnode cache */
+#define HFS_CACHELEN	17	/* primes are best? */
+
+/*
+ * Legal values for the 'ndType' field of a (struct NodeDescriptor)
+ *
+ * Reference: _Inside Macintosh: Files_ p. 2-65
+ */
+#define ndIndxNode	0x00	/* An internal (index) node */
+#define ndHdrNode	0x01	/* The tree header node (node 0) */
+#define ndMapNode	0x02	/* Holds part of the bitmap of used nodes */
+#define ndLeafNode	0xFF	/* A leaf (ndNHeight==1) node */
+
+/*
+ * Legal values for the bthAtrb field of a (struct BTHdrRec)
+ *
+ * Reference: TN 1150
+ */
+#define bthBadClose     0x00000001  /* b-tree not closed properly. not
+                                       used by hfsplus. */
+#define bthBigKeys      0x00000002  /* key length is u16 instead of u8.
+				       used by hfsplus. */
+#define bthVarIndxKeys  0x00000004  /* variable key length instead of
+                                       max key length. use din catalog
+                                       b-tree but not in extents
+                                       b-tree (hfsplus). */
+
+/*================ Function-like macros ================*/
+
+/* Access the cache slot which should contain the desired node */
+#define bhash(tree, node) ((tree)->cache[(node) % HFS_CACHELEN])
+
+/* round up to multiple of sizeof(hfs_u16) */
+#define ROUND(X) ((X + sizeof(hfs_u16) - 1) & ~(sizeof(hfs_u16)-1))
+
+/* Refer to the (base-1) array of offsets in a bnode */
+#define RECTBL(X,N) \
+	(((hfs_u16 *)(hfs_buffer_data((X)->buf)+HFS_SECTOR_SIZE))-(N))
+
+/*================ Private data types ================*/
+
+/*
+ * struct BTHdrRec
+ *
+ * The B-tree header record
+ *
+ * This data structure is stored in the first node (512-byte block) of
+ * each B-tree file.  It contains important information about the
+ * B-tree.  Most fields vary over the life of the tree and are
+ * indicated by a 'V' in the comments.	The other fields are fixed for
+ * the life of the tree and are indicated by a 'F'.
+ *
+ * Reference: _Inside Macintosh: Files_ pp. 2-68 through 2-69 */
+struct BTHdrRec {
+	hfs_word_t  bthDepth;	/* (V) The number of levels in this B-tree */
+	hfs_lword_t bthRoot;	/* (V) The node number of the root node */
+	hfs_lword_t bthNRecs;	/* (V) The number of leaf records */
+	hfs_lword_t bthFNode;	/* (V) The number of the first leaf node */
+	hfs_lword_t bthLNode;	/* (V) The number of the last leaf node */
+	hfs_word_t  bthNodeSize;	/* (F) The number of bytes in a node (=512) */
+	hfs_word_t  bthKeyLen;	/* (F) The length of a key in an index node */
+	hfs_lword_t bthNNodes;	/* (V) The total number of nodes */
+	hfs_lword_t bthFree;	/* (V) The number of unused nodes */
+        hfs_word_t  bthResv1;   /* reserved */
+        hfs_lword_t bthClpSiz;  /* (F) clump size. not usually used. */
+        hfs_byte_t  bthType;    /* (F) BTree type */
+        hfs_byte_t  bthResv2;   /* reserved */
+        hfs_lword_t bthAtrb;    /* (F) attributes */
+        hfs_lword_t bthResv3[16]; /* Reserved */
+} __attribute__((packed));
+
+/*
+ * struct NodeDescriptor
+ *
+ * The B-tree node descriptor.
+ *
+ * This structure begins each node in the B-tree file.	It contains
+ * important information about the node's contents.  'V' and 'F' in
+ * the comments indicate fields that are variable or fixed over the
+ * life of a node, where the 'life' of a node is defined as the period
+ * between leaving and reentering the free pool.
+ *
+ * Reference: _Inside Macintosh: Files_ p. 2-64
+ */
+struct NodeDescriptor {
+	hfs_lword_t ndFLink;	/* (V) Number of the next node at this level */
+	hfs_lword_t ndBLink;	/* (V) Number of the prev node at this level */
+	hfs_byte_t  ndType;	/* (F) The type of node */
+	hfs_byte_t  ndNHeight;	/* (F) The level of this node (leaves=1) */
+	hfs_word_t  ndNRecs;	/* (V) The number of records in this node */
+	hfs_word_t  ndResv2;	/* Reserved */
+} __attribute__((packed));
+
+/*
+ * typedef hfs_cmpfn
+ *
+ * The type 'hfs_cmpfn' is a comparison function taking 2 keys and
+ * returning a positive, negative or zero integer according to the
+ * ordering of the two keys (just like strcmp() does for strings).
+ */
+typedef int (*hfs_cmpfn)(const void *, const void *);
+
+/*
+ * struct hfs_bnode
+ *
+ * An in-core B-tree node
+ *
+ * This structure holds information from the NodeDescriptor in native
+ * byte-order, a pointer to the buffer which contains the actual
+ * node and fields necessary for locking access to the node during
+ * updates.  The use of the locking fields is explained with the
+ * locking functions.
+ */
+struct hfs_bnode {
+	int		    magic;   /* Magic number to guard against
+					wild pointers */
+	hfs_buffer	    buf;     /* The buffer containing the
+					actual node */
+	struct hfs_btree    *tree;   /* The tree to which this node
+					belongs */
+	struct hfs_bnode    *prev;   /* Next node in this hash bucket */
+	struct hfs_bnode    *next;   /* Previous node in this hash
+					bucket */
+	int		    sticky;  /* Boolean: non-zero means keep
+					this node in-core (set for
+					root and head) */
+	hfs_u32		    node;    /* Node number */
+	hfs_u16             nodeSize; /* node size */
+        hfs_u16             keyLen;  /* key length */
+	/* locking related fields: */
+	hfs_wait_queue	    wqueue;  /* Wait queue for write access */
+	hfs_wait_queue	    rqueue;  /* Wait queue for read or reserve
+					access */
+	int		    count;   /* Number of processes accessing
+					this node */
+	int		    resrv;   /* Boolean, true means a process
+					had placed a 'reservation' on
+					this node */
+	int		    lock;    /* Boolean, true means some
+					process has exclusive access,
+					so KEEP OUT */
+	/* fields from the NodeDescriptor in native byte-order: */
+	hfs_u32		    ndFLink;
+	hfs_u32		    ndBLink;
+	hfs_u16		    ndNRecs;
+	hfs_u8		    ndType;
+	hfs_u8		    ndNHeight;
+};
+
+/*
+ * struct hfs_btree
+ *
+ * An in-core B-tree.
+ *
+ * This structure holds information from the BTHdrRec, MDB
+ * (superblock) and other information needed to work with the B-tree.
+ */
+struct hfs_btree {
+	int			magic;	       /* Magic number to
+						  guard against wild
+						  pointers */
+	hfs_cmpfn		compare;       /* Comparison function
+						  for this tree */
+	struct hfs_bnode	head;	       /* in-core copy of node 0 */
+	struct hfs_bnode	*root;	       /* Pointer to the in-core
+						  copy of the root node */
+	hfs_sysmdb		sys_mdb;       /* The "device" holding
+						  the filesystem */
+	int			reserved;      /* bnodes claimed but
+						  not yet used */
+	struct hfs_bnode		       /* The bnode cache */
+				*cache[HFS_CACHELEN];
+	struct hfs_cat_entry	entry;	       /* Fake catalog entry */
+	int			lock;
+	hfs_wait_queue		wait;
+	int			dirt;
+	int                     keySize;   
+	/* Fields from the BTHdrRec in native byte-order: */
+	hfs_u32			bthRoot;
+	hfs_u32			bthNRecs;
+	hfs_u32			bthFNode;
+	hfs_u32			bthLNode;
+	hfs_u32			bthNNodes;
+	hfs_u32			bthFree;
+	hfs_u16			bthKeyLen;
+	hfs_u16			bthDepth;
+};
+
+/*================ Global functions ================*/
+
+/* Convert a (struct hfs_bnode *) and an index to the value of the
+   n-th offset in the bnode (N >= 1) to the offset */
+extern inline hfs_u16 bnode_offset(const struct hfs_bnode *bnode, int n)
+{ return hfs_get_hs(RECTBL(bnode,n)); }
+
+/* Convert a (struct hfs_bnode *) and an index to the size of the
+   n-th record in the bnode (N >= 1) */
+extern inline hfs_u16 bnode_rsize(const struct hfs_bnode *bnode, int n)
+{ return bnode_offset(bnode, n+1) - bnode_offset(bnode, n); }
+
+/* Convert a (struct hfs_bnode *) to the offset of the empty part */
+extern inline hfs_u16 bnode_end(const struct hfs_bnode *bnode)
+{ return bnode_offset(bnode, bnode->ndNRecs + 1); }
+
+/* Convert a (struct hfs_bnode *) to the number of free bytes it contains */
+extern inline hfs_u16 bnode_freespace(const struct hfs_bnode *bnode)
+{ return HFS_SECTOR_SIZE - bnode_end(bnode)
+	  - (bnode->ndNRecs + 1)*sizeof(hfs_u16); }
+
+/* Convert a (struct hfs_bnode *) X and an index N to
+   the address of the record N in the bnode (N >= 1) */
+extern inline void *bnode_datastart(const struct hfs_bnode *bnode)
+{ return (void *)(hfs_buffer_data(bnode->buf)+sizeof(struct NodeDescriptor)); }
+
+/* Convert a (struct hfs_bnode *) to the address of the empty part */
+extern inline void *bnode_dataend(const struct hfs_bnode *bnode)
+{ return (void *)(hfs_buffer_data(bnode->buf) + bnode_end(bnode)); }
+
+/* Convert various pointers to address of record's key */
+extern inline void *bnode_key(const struct hfs_bnode *bnode, int n)
+{ return (void *)(hfs_buffer_data(bnode->buf) + bnode_offset(bnode, n)); }
+extern inline void *belem_key(const struct hfs_belem *elem)
+{ return bnode_key(elem->bnr.bn, elem->record); }
+extern inline void *brec_key(const struct hfs_brec *brec)
+{ return belem_key(brec->bottom); }
+
+/* Convert various pointers to the address of a record */
+extern inline void *bkey_record(const struct hfs_bkey *key)
+{ return (void *)key + ROUND(key->KeyLen + 1); }
+extern inline void *bnode_record(const struct hfs_bnode *bnode, int n)
+{ return bkey_record(bnode_key(bnode, n)); }
+extern inline void *belem_record(const struct hfs_belem *elem)
+{ return bkey_record(belem_key(elem)); }
+extern inline void *brec_record(const struct hfs_brec *brec)
+{ return bkey_record(brec_key(brec)); }
+
+/*================ Function Prototypes ================*/
+
+/* balloc.c */
+extern int hfs_bnode_bitop(struct hfs_btree *, hfs_u32, int);
+extern struct hfs_bnode_ref hfs_bnode_alloc(struct hfs_btree *);
+extern int hfs_bnode_free(struct hfs_bnode_ref *);
+extern void hfs_btree_extend(struct hfs_btree *);
+
+/* bins_del.c */
+extern void hfs_bnode_update_key(struct hfs_brec *, struct hfs_belem *,
+				 struct hfs_bnode *, int);
+extern void hfs_bnode_shift_right(struct hfs_bnode *, struct hfs_bnode *, int);
+extern void hfs_bnode_shift_left(struct hfs_bnode *, struct hfs_bnode *, int);
+extern int hfs_bnode_in_brec(hfs_u32 node, const struct hfs_brec *brec);
+
+/* bnode.c */
+extern void hfs_bnode_read(struct hfs_bnode *, struct hfs_btree *,
+			   hfs_u32, int);
+extern void hfs_bnode_relse(struct hfs_bnode_ref *);
+extern struct hfs_bnode_ref hfs_bnode_find(struct hfs_btree *, hfs_u32, int);
+extern void hfs_bnode_lock(struct hfs_bnode_ref *, int);
+extern void hfs_bnode_delete(struct hfs_bnode *);
+extern void hfs_bnode_commit(struct hfs_bnode *);
+
+/* brec.c */
+extern void hfs_brec_lock(struct hfs_brec *, struct hfs_belem *);
+extern struct hfs_belem *hfs_brec_init(struct hfs_brec *, struct hfs_btree *,
+				       int);
+extern struct hfs_belem *hfs_brec_next(struct hfs_brec *);
+
+#endif
diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c
new file mode 100644
index 00000000000000..034e9fca67fda0
--- /dev/null
+++ b/fs/hfs/inode.c
@@ -0,0 +1,503 @@
+/*
+ * linux/fs/hfs/inode.c
+ *
+ * Copyright (C) 1995-1997  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * This file contains inode-related functions which do not depend on
+ * which scheme is being used to represent forks.
+ *
+ * Based on the minix file system code, (C) 1991, 1992 by Linus Torvalds
+ *
+ * "XXX" in a comment is a note to myself to consider changing something.
+ *
+ * In function preconditions the term "valid" applied to a pointer to
+ * a structure means that the pointer is non-NULL and the structure it
+ * points to has all fields initialized to consistent values.
+ */
+
+#include "hfs.h"
+#include <linux/hfs_fs_sb.h>
+#include <linux/hfs_fs_i.h>
+#include <linux/hfs_fs.h>
+#include <linux/smp_lock.h>
+
+/*================ Variable-like macros ================*/
+
+#define HFS_VALID_MODE_BITS  (S_IFREG | S_IFDIR | S_IRWXUGO)
+
+/*================ File-local functions ================*/
+
+/*
+ * init_file_inode()
+ *
+ * Given an HFS catalog entry initialize an inode for a file.
+ */
+static void init_file_inode(struct inode *inode, hfs_u8 fork)
+{
+	struct hfs_fork *fk;
+	struct hfs_cat_entry *entry = HFS_I(inode)->entry;
+
+	if (fork == HFS_FK_DATA) {
+		inode->i_mode = S_IRWXUGO | S_IFREG;
+	} else {
+		inode->i_mode = S_IRUGO | S_IWUGO | S_IFREG;
+	}
+
+	if (fork == HFS_FK_DATA) {
+#if 0 /* XXX: disable crlf translations for now */
+		hfs_u32 type = hfs_get_nl(entry->info.file.finfo.fdType);
+
+		HFS_I(inode)->convert =
+			((HFS_SB(inode->i_sb)->s_conv == 't') ||
+			 ((HFS_SB(inode->i_sb)->s_conv == 'a') &&
+			  ((type == htonl(0x54455854)) ||   /* "TEXT" */
+			   (type == htonl(0x7474726f)))));  /* "ttro" */
+#else
+		HFS_I(inode)->convert = 0;
+#endif
+		fk = &entry->u.file.data_fork;
+	} else {
+		fk = &entry->u.file.rsrc_fork;
+		HFS_I(inode)->convert = 0;
+	}
+	HFS_I(inode)->fork = fk;
+	inode->i_size = fk->lsize;
+	inode->i_blocks = fk->psize;
+	inode->i_nlink = 1;
+}
+
+/*================ Global functions ================*/
+
+/*
+ * hfs_put_inode()
+ *
+ * This is the put_inode() entry in the super_operations for HFS
+ * filesystems.  The purpose is to perform any filesystem-dependent 
+ * cleanup necessary when the use-count of an inode falls to zero.
+ */
+void hfs_put_inode(struct inode * inode)
+{
+	struct hfs_cat_entry *entry = HFS_I(inode)->entry;
+
+	lock_kernel();
+	hfs_cat_put(entry);
+	if (atomic_read(&inode->i_count) == 1) {
+	  struct hfs_hdr_layout *tmp = HFS_I(inode)->layout;
+
+	  if (tmp) {
+		HFS_I(inode)->layout = NULL;
+		HFS_DELETE(tmp);
+	  }
+	}
+	unlock_kernel();
+}
+
+/*
+ * hfs_notify_change()
+ *
+ * Based very closely on fs/msdos/inode.c by Werner Almesberger
+ *
+ * This is the notify_change() field in the super_operations structure
+ * for HFS file systems.  The purpose is to take that changes made to
+ * an inode and apply then in a filesystem-dependent manner.  In this
+ * case the process has a few of tasks to do:
+ *  1) prevent changes to the i_uid and i_gid fields.
+ *  2) map file permissions to the closest allowable permissions
+ *  3) Since multiple Linux files can share the same on-disk inode under
+ *     HFS (for instance the data and resource forks of a file) a change
+ *     to permissions must be applied to all other in-core inodes which 
+ *     correspond to the same HFS file.
+ */
+enum {HFS_NORM, HFS_HDR, HFS_CAP};
+
+static int __hfs_notify_change(struct dentry *dentry, struct iattr * attr, int kind)
+{
+	struct inode *inode = dentry->d_inode;
+	struct hfs_cat_entry *entry = HFS_I(inode)->entry;
+	struct dentry **de = entry->sys_entry;
+	struct hfs_sb_info *hsb = HFS_SB(inode->i_sb);
+	int error, i;
+
+	error = inode_change_ok(inode, attr); /* basic permission checks */
+	if (error) {
+		/* Let netatalk's afpd think chmod() always succeeds */
+		if (hsb->s_afpd &&
+		    (attr->ia_valid == (ATTR_MODE | ATTR_CTIME))) {
+			return 0;
+		} else {
+			return error;
+		}
+	}
+
+	/* no uig/gid changes and limit which mode bits can be set */
+	if (((attr->ia_valid & ATTR_UID) && 
+	     (attr->ia_uid != hsb->s_uid)) ||
+	    ((attr->ia_valid & ATTR_GID) && 
+	     (attr->ia_gid != hsb->s_gid)) ||
+	    ((attr->ia_valid & ATTR_MODE) &&
+	     (((entry->type == HFS_CDR_DIR) &&
+	       (attr->ia_mode != inode->i_mode))||
+	      (attr->ia_mode & ~HFS_VALID_MODE_BITS)))) {
+		return hsb->s_quiet ? 0 : error;
+	}
+	
+	if (entry->type == HFS_CDR_DIR) {
+		attr->ia_valid &= ~ATTR_MODE;
+	} else if (attr->ia_valid & ATTR_MODE) {
+		/* Only the 'w' bits can ever change and only all together. */
+		if (attr->ia_mode & S_IWUSR) {
+			attr->ia_mode = inode->i_mode | S_IWUGO;
+		} else {
+			attr->ia_mode = inode->i_mode & ~S_IWUGO;
+		}
+		attr->ia_mode &= ~hsb->s_umask;
+	}
+	/*
+	 * Normal files handle size change in normal way.
+	 * Oddballs are served here.
+	 */
+	if (attr->ia_valid & ATTR_SIZE) {
+		if (kind == HFS_CAP) {
+			inode->i_size = attr->ia_size;
+			if (inode->i_size > HFS_FORK_MAX)
+				inode->i_size = HFS_FORK_MAX;
+			mark_inode_dirty(inode);
+			attr->ia_valid &= ~ATTR_SIZE;
+		} else if (kind == HFS_HDR) {
+			hdr_truncate(inode, attr->ia_size);
+			attr->ia_valid &= ~ATTR_SIZE;
+		}
+	}
+	error = inode_setattr(inode, attr);
+	if (error)
+		return error;
+
+	/* We wouldn't want to mess with the sizes of the other fork */
+	attr->ia_valid &= ~ATTR_SIZE;
+
+	/* We must change all in-core inodes corresponding to this file. */
+	for (i = 0; i < 4; ++i) {
+	  if (de[i] && (de[i] != dentry)) {
+		inode_setattr(de[i]->d_inode, attr);
+	  }
+	}
+
+	/* Change the catalog entry if needed */
+	if (attr->ia_valid & ATTR_MTIME) {
+		entry->modify_date = hfs_u_to_mtime(inode->i_mtime);
+		hfs_cat_mark_dirty(entry);
+	}
+	if (attr->ia_valid & ATTR_MODE) {
+		hfs_u8 new_flags;
+
+		if (inode->i_mode & S_IWUSR) {
+			new_flags = entry->u.file.flags & ~HFS_FIL_LOCK;
+		} else {
+			new_flags = entry->u.file.flags | HFS_FIL_LOCK;
+		}
+
+		if (new_flags != entry->u.file.flags) {
+			entry->u.file.flags = new_flags;
+			hfs_cat_mark_dirty(entry);
+		}
+	}
+	/* size changes handled in hfs_extent_adj() */
+
+	return 0;
+}
+
+int hfs_notify_change(struct dentry *dentry, struct iattr * attr)
+{
+	return __hfs_notify_change(dentry, attr, HFS_NORM);
+}
+
+int hfs_notify_change_cap(struct dentry *dentry, struct iattr * attr)
+{
+	return __hfs_notify_change(dentry, attr, HFS_CAP);
+}
+
+int hfs_notify_change_hdr(struct dentry *dentry, struct iattr * attr)
+{
+	return __hfs_notify_change(dentry, attr, HFS_HDR);
+}
+
+static int hfs_writepage(struct page *page)
+{
+	return block_write_full_page(page,hfs_get_block);
+}
+static int hfs_readpage(struct file *file, struct page *page)
+{
+	return block_read_full_page(page,hfs_get_block);
+}
+static int hfs_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)
+{
+	return cont_prepare_write(page,from,to,hfs_get_block,
+		&page->mapping->host->u.hfs_i.mmu_private);
+}
+static int hfs_bmap(struct address_space *mapping, long block)
+{
+	return generic_block_bmap(mapping,block,hfs_get_block);
+}
+struct address_space_operations hfs_aops = {
+	readpage: hfs_readpage,
+	writepage: hfs_writepage,
+	sync_page: block_sync_page,
+	prepare_write: hfs_prepare_write,
+	commit_write: generic_commit_write,
+	bmap: hfs_bmap
+};
+
+/*
+ * __hfs_iget()
+ *
+ * Given the MDB for a HFS filesystem, a 'key' and an 'entry' in
+ * the catalog B-tree and the 'type' of the desired file return the
+ * inode for that file/directory or NULL.  Note that 'type' indicates
+ * whether we want the actual file or directory, or the corresponding
+ * metadata (AppleDouble header file or CAP metadata file).
+ *
+ * In an ideal world we could call iget() and would not need this
+ * function.  However, since there is no way to even know the inode
+ * number until we've found the file/directory in the catalog B-tree
+ * that simply won't happen.
+ *
+ * The main idea here is to look in the catalog B-tree to get the
+ * vital info about the file or directory (including the file id which
+ * becomes the inode number) and then to call iget() and return the
+ * inode if it is complete.  If it is not then we use the catalog
+ * entry to fill in the missing info, by calling the appropriate
+ * 'fillin' function.  Note that these fillin functions are
+ * essentially hfs_*_read_inode() functions, but since there is no way
+ * to pass the catalog entry through iget() to such a read_inode()
+ * function, we have to call them after iget() returns an incomplete
+ * inode to us.	 This is pretty much the same problem faced in the NFS
+ * code, and pretty much the same solution. The SMB filesystem deals
+ * with this in a different way: by using the address of the
+ * kmalloc()'d space which holds the data as the inode number.
+ *
+ * XXX: Both this function and NFS's corresponding nfs_fhget() would
+ * benefit from a way to pass an additional (void *) through iget() to
+ * the VFS read_inode() function.
+ *
+ * this will hfs_cat_put() the entry if it fails.
+ */
+struct inode *hfs_iget(struct hfs_cat_entry *entry, ino_t type,
+		       struct dentry *dentry)
+{
+	struct dentry **sys_entry;
+	struct super_block *sb;
+	struct inode *inode;
+
+	if (!entry) {
+		return NULL;
+	}
+
+	/* If there are several processes all calling __iget() for
+	   the same inode then they will all get the same one back.
+	   The first one to return from __iget() will notice that the
+	   i_mode field of the inode is blank and KNOW that it is
+	   the first to return.  Therefore, it will set the appropriate
+	   'sys_entry' field in the entry and initialize the inode.
+	   All the initialization must be done without sleeping,
+	   or else other processes could end up using a partially
+	   initialized inode.				*/
+
+	sb = entry->mdb->sys_mdb;
+	sys_entry = &entry->sys_entry[HFS_ITYPE_TO_INT(type)];
+
+	if (!(inode = iget(sb, ntohl(entry->cnid) | type))) {
+	        hfs_cat_put(entry);
+	        return NULL;
+	}
+
+	if (inode->i_dev != sb->s_dev) {
+	        iput(inode); /* automatically does an hfs_cat_put */
+		inode = NULL;
+	} else if (!inode->i_mode || (*sys_entry == NULL)) {
+		/* Initialize the inode */
+		struct hfs_sb_info *hsb = HFS_SB(sb);
+
+		inode->i_rdev = 0;
+		inode->i_ctime = inode->i_atime = inode->i_mtime =
+					hfs_m_to_utime(entry->modify_date);
+		inode->i_blksize = HFS_SECTOR_SIZE;
+		inode->i_uid = hsb->s_uid;
+		inode->i_gid = hsb->s_gid;
+
+		memset(HFS_I(inode), 0, sizeof(struct hfs_inode_info));
+		HFS_I(inode)->magic = HFS_INO_MAGIC;
+		HFS_I(inode)->entry = entry;
+		HFS_I(inode)->tz_secondswest = hfs_to_utc(0);
+
+		hsb->s_ifill(inode, type, hsb->s_version);
+		if (!hsb->s_afpd && (entry->type == HFS_CDR_FIL) &&
+		    (entry->u.file.flags & HFS_FIL_LOCK)) {
+			inode->i_mode &= ~S_IWUGO;
+		}
+		inode->i_mode &= ~hsb->s_umask;
+
+		if (!inode->i_mode) {
+			iput(inode); /* does an hfs_cat_put */
+			inode = NULL;
+		} else
+			*sys_entry = dentry; /* cache dentry */
+
+	}
+
+	return inode;
+}
+
+/*================ Scheme-specific functions ================*/
+
+/* 
+ * hfs_cap_ifill()
+ *
+ * This function serves the same purpose as a read_inode() function does
+ * in other filesystems.  It is called by __hfs_iget() to fill in
+ * the missing fields of an uninitialized inode under the CAP scheme.
+ */
+void hfs_cap_ifill(struct inode * inode, ino_t type, const int version)
+{
+	struct hfs_cat_entry *entry = HFS_I(inode)->entry;
+
+	HFS_I(inode)->d_drop_op = hfs_cap_drop_dentry;
+	if (type == HFS_CAP_FNDR) {
+		inode->i_size = sizeof(struct hfs_cap_info);
+		inode->i_blocks = 0;
+		inode->i_nlink = 1;
+		inode->i_mode = S_IRUGO | S_IWUGO | S_IFREG;
+		inode->i_op = &hfs_cap_info_inode_operations;
+		inode->i_fop = &hfs_cap_info_operations;
+	} else if (entry->type == HFS_CDR_FIL) {
+		init_file_inode(inode, (type == HFS_CAP_DATA) ?
+						HFS_FK_DATA : HFS_FK_RSRC);
+		inode->i_op = &hfs_file_inode_operations;
+		inode->i_fop = &hfs_file_operations;
+		inode->i_mapping->a_ops = &hfs_aops;
+		inode->u.hfs_i.mmu_private = inode->i_size;
+	} else { /* Directory */
+		struct hfs_dir *hdir = &entry->u.dir;
+
+		inode->i_blocks = 0;
+		inode->i_size = hdir->files + hdir->dirs + 5;
+		HFS_I(inode)->dir_size = 1;
+		if (type == HFS_CAP_NDIR) {
+			inode->i_mode = S_IRWXUGO | S_IFDIR;
+			inode->i_nlink = hdir->dirs + 4;
+			inode->i_op = &hfs_cap_ndir_inode_operations;
+			inode->i_fop = &hfs_cap_dir_operations;
+			HFS_I(inode)->file_type = HFS_CAP_NORM;
+		} else if (type == HFS_CAP_FDIR) {
+			inode->i_mode = S_IRUGO | S_IXUGO | S_IFDIR;
+			inode->i_nlink = 2;
+			inode->i_op = &hfs_cap_fdir_inode_operations;
+			inode->i_fop = &hfs_cap_dir_operations;
+			HFS_I(inode)->file_type = HFS_CAP_FNDR;
+		} else if (type == HFS_CAP_RDIR) {
+			inode->i_mode = S_IRUGO | S_IXUGO | S_IFDIR;
+			inode->i_nlink = 2;
+			inode->i_op = &hfs_cap_rdir_inode_operations;
+			inode->i_fop = &hfs_cap_dir_operations;
+			HFS_I(inode)->file_type = HFS_CAP_RSRC;
+		}
+	}
+}
+
+/* 
+ * hfs_dbl_ifill()
+ *
+ * This function serves the same purpose as a read_inode() function does
+ * in other filesystems.  It is called by __hfs_iget() to fill in
+ * the missing fields of an uninitialized inode under the AppleDouble
+ * scheme.
+ */
+void hfs_dbl_ifill(struct inode * inode, ino_t type, const int version)
+{
+	struct hfs_cat_entry *entry = HFS_I(inode)->entry;
+
+	HFS_I(inode)->d_drop_op = hfs_dbl_drop_dentry;
+	if (type == HFS_DBL_HDR) {
+		if (entry->type == HFS_CDR_FIL) {
+			init_file_inode(inode, HFS_FK_RSRC);
+			inode->i_size += HFS_DBL_HDR_LEN;
+			HFS_I(inode)->default_layout = &hfs_dbl_fil_hdr_layout;
+		} else {
+			inode->i_size = HFS_DBL_HDR_LEN;
+			inode->i_mode = S_IRUGO | S_IWUGO | S_IFREG;
+			inode->i_nlink = 1;
+			HFS_I(inode)->default_layout = &hfs_dbl_dir_hdr_layout;
+		}
+		inode->i_op = &hfs_hdr_inode_operations;
+		inode->i_fop = &hfs_hdr_operations;
+	} else if (entry->type == HFS_CDR_FIL) {
+		init_file_inode(inode, HFS_FK_DATA);
+		inode->i_op = &hfs_file_inode_operations;
+		inode->i_fop = &hfs_file_operations;
+		inode->i_mapping->a_ops = &hfs_aops;
+		inode->u.hfs_i.mmu_private = inode->i_size;
+	} else { /* Directory */
+		struct hfs_dir *hdir = &entry->u.dir;
+
+		inode->i_blocks = 0;
+		inode->i_nlink = hdir->dirs + 2;
+		inode->i_size = 3 + 2 * (hdir->dirs + hdir->files);
+		inode->i_mode = S_IRWXUGO | S_IFDIR;
+		inode->i_op = &hfs_dbl_dir_inode_operations;
+		inode->i_fop = &hfs_dbl_dir_operations;
+		HFS_I(inode)->file_type = HFS_DBL_NORM;
+		HFS_I(inode)->dir_size = 2;
+	}
+}
+
+/* 
+ * hfs_nat_ifill()
+ *
+ * This function serves the same purpose as a read_inode() function does
+ * in other filesystems.  It is called by __hfs_iget() to fill in
+ * the missing fields of an uninitialized inode under the Netatalk
+ * scheme.
+ */
+void hfs_nat_ifill(struct inode * inode, ino_t type, const int version)
+{
+	struct hfs_cat_entry *entry = HFS_I(inode)->entry;
+
+	HFS_I(inode)->d_drop_op = hfs_nat_drop_dentry;
+	if (type == HFS_NAT_HDR) {
+		if (entry->type == HFS_CDR_FIL) {
+			init_file_inode(inode, HFS_FK_RSRC);
+			inode->i_size += HFS_NAT_HDR_LEN;
+		} else {
+			inode->i_size = HFS_NAT_HDR_LEN;
+			inode->i_mode = S_IRUGO | S_IWUGO | S_IFREG;
+			inode->i_nlink = 1;
+		}
+		inode->i_op = &hfs_hdr_inode_operations;
+		inode->i_fop = &hfs_hdr_operations;
+		HFS_I(inode)->default_layout = (version == 2) ?
+			&hfs_nat2_hdr_layout : &hfs_nat_hdr_layout;
+	} else if (entry->type == HFS_CDR_FIL) {
+		init_file_inode(inode, HFS_FK_DATA);
+		inode->i_op = &hfs_file_inode_operations;
+		inode->i_fop = &hfs_file_operations;
+		inode->i_mapping->a_ops = &hfs_aops;
+		inode->u.hfs_i.mmu_private = inode->i_size;
+	} else { /* Directory */
+		struct hfs_dir *hdir = &entry->u.dir;
+
+		inode->i_blocks = 0;
+		inode->i_size = hdir->files + hdir->dirs + 4;
+		inode->i_mode = S_IRWXUGO | S_IFDIR;
+		HFS_I(inode)->dir_size = 1;
+		if (type == HFS_NAT_NDIR) {
+			inode->i_nlink = hdir->dirs + 3;
+			inode->i_op = &hfs_nat_ndir_inode_operations;
+			HFS_I(inode)->file_type = HFS_NAT_NORM;
+		} else if (type == HFS_NAT_HDIR) {
+			inode->i_nlink = 2;
+			inode->i_op = &hfs_nat_hdir_inode_operations;
+			HFS_I(inode)->file_type = HFS_NAT_HDR;
+		}
+		inode->i_fop = &hfs_nat_dir_operations;
+	}
+}
diff --git a/fs/hfs/mdb.c b/fs/hfs/mdb.c
new file mode 100644
index 00000000000000..679a03a1355703
--- /dev/null
+++ b/fs/hfs/mdb.c
@@ -0,0 +1,320 @@
+/*
+ * linux/fs/hfs/mdb.c
+ *
+ * Copyright (C) 1995-1997  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * This file contains functions for reading/writing the MDB.
+ *
+ * "XXX" in a comment is a note to myself to consider changing something.
+ *
+ * In function preconditions the term "valid" applied to a pointer to
+ * a structure means that the pointer is non-NULL and the structure it
+ * points to has all fields initialized to consistent values.
+ *
+ * The code in this file initializes some structures which contain
+ * pointers by calling memset(&foo, 0, sizeof(foo)).
+ * This produces the desired behavior only due to the non-ANSI
+ * assumption that the machine representation of NULL is all zeros.
+ */
+
+#include "hfs.h"
+
+/*================ File-local data types ================*/
+
+/* 
+ * The HFS Master Directory Block (MDB).
+ *
+ * Also known as the Volume Information Block (VIB), this structure is
+ * the HFS equivalent of a superblock.
+ *
+ * Reference: _Inside Macintosh: Files_ pages 2-59 through 2-62
+ *
+ * modified for HFS Extended
+ */
+struct raw_mdb {
+	hfs_word_t	drSigWord;	/* Signature word indicating fs type */
+	hfs_lword_t	drCrDate;	/* fs creation date/time */
+	hfs_lword_t	drLsMod;	/* fs modification date/time */
+	hfs_word_t	drAtrb;		/* fs attributes */
+	hfs_word_t	drNmFls;	/* number of files in root directory */
+	hfs_word_t	drVBMSt;	/* location (in 512-byte blocks)
+					   of the volume bitmap */
+	hfs_word_t	drAllocPtr;	/* location (in allocation blocks)
+					   to begin next allocation search */
+	hfs_word_t	drNmAlBlks;	/* number of allocation blocks */
+	hfs_lword_t	drAlBlkSiz;	/* bytes in an allocation block */
+	hfs_lword_t	drClpSiz;	/* clumpsize, the number of bytes to
+					   allocate when extending a file */
+	hfs_word_t	drAlBlSt;	/* location (in 512-byte blocks)
+					   of the first allocation block */
+	hfs_lword_t	drNxtCNID;	/* CNID to assign to the next
+					   file or directory created */
+	hfs_word_t	drFreeBks;	/* number of free allocation blocks */
+	hfs_byte_t	drVN[28];	/* the volume label */
+	hfs_lword_t	drVolBkUp;	/* fs backup date/time */
+	hfs_word_t	drVSeqNum;	/* backup sequence number */
+	hfs_lword_t	drWrCnt;	/* fs write count */
+	hfs_lword_t	drXTClpSiz;	/* clumpsize for the extents B-tree */
+	hfs_lword_t	drCTClpSiz;	/* clumpsize for the catalog B-tree */
+	hfs_word_t	drNmRtDirs;	/* number of directories in
+					   the root directory */
+	hfs_lword_t	drFilCnt;	/* number of files in the fs */
+	hfs_lword_t	drDirCnt;	/* number of directories in the fs */
+	hfs_byte_t	drFndrInfo[32];	/* data used by the Finder */
+	hfs_word_t	drEmbedSigWord;	/* embedded volume signature */
+	hfs_lword_t     drEmbedExtent;  /* starting block number (xdrStABN) 
+					   and number of allocation blocks 
+					   (xdrNumABlks) occupied by embedded
+					   volume */
+	hfs_lword_t	drXTFlSize;	/* bytes in the extents B-tree */
+	hfs_byte_t	drXTExtRec[12];	/* extents B-tree's first 3 extents */
+	hfs_lword_t	drCTFlSize;	/* bytes in the catalog B-tree */
+	hfs_byte_t	drCTExtRec[12];	/* catalog B-tree's first 3 extents */
+} __attribute__((packed));
+
+/*================ Global functions ================*/
+
+/*
+ * hfs_mdb_get()
+ *
+ * Build the in-core MDB for a filesystem, including
+ * the B-trees and the volume bitmap.
+ */
+struct hfs_mdb *hfs_mdb_get(hfs_sysmdb sys_mdb, int readonly,
+			    hfs_s32 part_start)
+{
+	struct hfs_mdb *mdb;
+	hfs_buffer buf;
+	struct raw_mdb *raw;
+	unsigned int bs, block;
+	int lcv, limit;
+	hfs_buffer *bmbuf;
+
+	if (!HFS_NEW(mdb)) {
+		hfs_warn("hfs_fs: out of memory\n");
+		return NULL;
+	}
+
+	memset(mdb, 0, sizeof(*mdb));
+	mdb->magic = HFS_MDB_MAGIC;
+	mdb->sys_mdb = sys_mdb;
+	INIT_LIST_HEAD(&mdb->entry_dirty);
+	hfs_init_waitqueue(&mdb->rename_wait);
+	hfs_init_waitqueue(&mdb->bitmap_wait);
+
+	/* See if this is an HFS filesystem */
+	buf = hfs_buffer_get(sys_mdb, part_start + HFS_MDB_BLK, 1);
+	if (!hfs_buffer_ok(buf)) {
+		hfs_warn("hfs_fs: Unable to read superblock\n");
+		HFS_DELETE(mdb);
+		goto bail2;
+	}
+
+	raw = (struct raw_mdb *)hfs_buffer_data(buf);
+	if (hfs_get_ns(raw->drSigWord) != htons(HFS_SUPER_MAGIC)) {
+		hfs_buffer_put(buf);
+		HFS_DELETE(mdb);
+		goto bail2;
+	}
+	mdb->buf = buf;
+	
+	bs = hfs_get_hl(raw->drAlBlkSiz);
+	if (!bs || (bs & (HFS_SECTOR_SIZE-1))) {
+		hfs_warn("hfs_fs: bad allocation block size %d != 512\n", bs);
+		hfs_buffer_put(buf);
+		HFS_DELETE(mdb);
+		goto bail2;
+	}
+	mdb->alloc_blksz = bs >> HFS_SECTOR_SIZE_BITS;
+
+	/* These parameters are read from the MDB, and never written */
+	mdb->create_date = hfs_get_hl(raw->drCrDate);
+	mdb->fs_ablocks  = hfs_get_hs(raw->drNmAlBlks);
+	mdb->fs_start    = hfs_get_hs(raw->drAlBlSt) + part_start;
+	mdb->backup_date = hfs_get_hl(raw->drVolBkUp);
+	mdb->clumpablks  = (hfs_get_hl(raw->drClpSiz) / mdb->alloc_blksz)
+						 >> HFS_SECTOR_SIZE_BITS;
+	memcpy(mdb->vname, raw->drVN, sizeof(raw->drVN));
+
+	/* These parameters are read from and written to the MDB */
+	mdb->modify_date  = hfs_get_nl(raw->drLsMod);
+	mdb->attrib       = hfs_get_ns(raw->drAtrb);
+	mdb->free_ablocks = hfs_get_hs(raw->drFreeBks);
+	mdb->next_id      = hfs_get_hl(raw->drNxtCNID);
+	mdb->write_count  = hfs_get_hl(raw->drWrCnt);
+	mdb->root_files   = hfs_get_hs(raw->drNmFls);
+	mdb->root_dirs    = hfs_get_hs(raw->drNmRtDirs);
+	mdb->file_count   = hfs_get_hl(raw->drFilCnt);
+	mdb->dir_count    = hfs_get_hl(raw->drDirCnt);
+
+	/* TRY to get the alternate (backup) MDB. */
+	lcv = mdb->fs_start + mdb->fs_ablocks * mdb->alloc_blksz;
+	limit = lcv + mdb->alloc_blksz;
+	for (; lcv < limit; ++lcv) {
+		buf = hfs_buffer_get(sys_mdb, lcv, 1);
+		if (hfs_buffer_ok(buf)) {
+			struct raw_mdb *tmp =
+				(struct raw_mdb *)hfs_buffer_data(buf);
+			
+			if (hfs_get_ns(tmp->drSigWord) ==
+			    htons(HFS_SUPER_MAGIC)) {
+				mdb->alt_buf = buf;
+				break;
+			}
+		}
+		hfs_buffer_put(buf);
+	}
+	
+	if (mdb->alt_buf == NULL) {
+		hfs_warn("hfs_fs: unable to locate alternate MDB\n");
+		hfs_warn("hfs_fs: continuing without an alternate MDB\n");
+	}
+	
+	/* read in the bitmap */
+	block = hfs_get_hs(raw->drVBMSt) + part_start;
+	bmbuf = mdb->bitmap;
+	lcv = (mdb->fs_ablocks + 4095) / 4096;
+	for ( ; lcv; --lcv, ++bmbuf, ++block) {
+		if (!hfs_buffer_ok(*bmbuf =
+				   hfs_buffer_get(sys_mdb, block, 1))) {
+			hfs_warn("hfs_fs: unable to read volume bitmap\n");
+			goto bail1;
+		}
+	}
+
+	if (!(mdb->ext_tree = hfs_btree_init(mdb, htonl(HFS_EXT_CNID),
+					     raw->drXTExtRec,
+					     hfs_get_hl(raw->drXTFlSize),
+					     hfs_get_hl(raw->drXTClpSiz))) ||
+	    !(mdb->cat_tree = hfs_btree_init(mdb, htonl(HFS_CAT_CNID),
+					     raw->drCTExtRec,
+					     hfs_get_hl(raw->drCTFlSize),
+					     hfs_get_hl(raw->drCTClpSiz)))) {
+		hfs_warn("hfs_fs: unable to initialize data structures\n");
+		goto bail1;
+	}
+
+	if (!(mdb->attrib & htons(HFS_SB_ATTRIB_CLEAN))) {
+		hfs_warn("hfs_fs: WARNING: mounting unclean filesystem.\n");
+	} else if (!readonly && !(mdb->attrib & (HFS_SB_ATTRIB_HLOCK | HFS_SB_ATTRIB_SLOCK))) {
+		/* Mark the volume uncleanly unmounted in case we crash */
+		hfs_put_ns(mdb->attrib & htons(~HFS_SB_ATTRIB_CLEAN),
+			   raw->drAtrb);
+		hfs_buffer_dirty(mdb->buf);
+		hfs_buffer_sync(mdb->buf);
+	}
+
+	return mdb;
+
+bail1:
+	hfs_mdb_put(mdb, readonly);
+bail2:
+	return NULL;
+}
+
+/*
+ * hfs_mdb_commit()
+ *
+ * Description:
+ *   This updates the MDB on disk (look also at hfs_write_super()).
+ *   It does not check, if the superblock has been modified, or
+ *   if the filesystem has been mounted read-only. It is mainly
+ *   called by hfs_write_super() and hfs_btree_extend().
+ * Input Variable(s):
+ *   struct hfs_mdb *mdb: Pointer to the hfs MDB
+ *   int backup;
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   void
+ * Preconditions:
+ *   'mdb' points to a "valid" (struct hfs_mdb).
+ * Postconditions:
+ *   The HFS MDB and on disk will be updated, by copying the possibly
+ *   modified fields from the in memory MDB (in native byte order) to
+ *   the disk block buffer.
+ *   If 'backup' is non-zero then the alternate MDB is also written
+ *   and the function doesn't return until it is actually on disk.
+ */
+void hfs_mdb_commit(struct hfs_mdb *mdb, int backup)
+{
+	struct raw_mdb *raw = (struct raw_mdb *)hfs_buffer_data(mdb->buf);
+
+	/* Commit catalog entries to buffers */
+	hfs_cat_commit(mdb);
+
+	/* Commit B-tree data to buffers */
+	hfs_btree_commit(mdb->cat_tree, raw->drCTExtRec, raw->drCTFlSize);
+	hfs_btree_commit(mdb->ext_tree, raw->drXTExtRec, raw->drXTFlSize);
+
+	/* Update write_count and modify_date */
+	++mdb->write_count;
+	mdb->modify_date = hfs_time();
+
+	/* These parameters may have been modified, so write them back */
+	hfs_put_nl(mdb->modify_date,   raw->drLsMod);
+	hfs_put_hs(mdb->free_ablocks,  raw->drFreeBks);
+	hfs_put_hl(mdb->next_id,       raw->drNxtCNID);
+	hfs_put_hl(mdb->write_count,   raw->drWrCnt);
+	hfs_put_hs(mdb->root_files,    raw->drNmFls);
+	hfs_put_hs(mdb->root_dirs,     raw->drNmRtDirs);
+	hfs_put_hl(mdb->file_count,    raw->drFilCnt);
+	hfs_put_hl(mdb->dir_count,     raw->drDirCnt);
+
+	/* write MDB to disk */
+	hfs_buffer_dirty(mdb->buf);
+
+       	/* write the backup MDB, not returning until it is written. 
+         * we only do this when either the catalog or extents overflow
+         * files grow. */
+        if (backup && hfs_buffer_ok(mdb->alt_buf)) {
+		struct raw_mdb *tmp = (struct raw_mdb *)
+			hfs_buffer_data(mdb->alt_buf);
+		
+		if ((hfs_get_hl(tmp->drCTFlSize) < 
+		     hfs_get_hl(raw->drCTFlSize)) ||
+		    (hfs_get_hl(tmp->drXTFlSize) <
+		     hfs_get_hl(raw->drXTFlSize))) {
+			memcpy(hfs_buffer_data(mdb->alt_buf), 
+			       hfs_buffer_data(mdb->buf), HFS_SECTOR_SIZE); 
+			hfs_buffer_dirty(mdb->alt_buf);
+			hfs_buffer_sync(mdb->alt_buf);
+		}
+        }
+}
+
+/*
+ * hfs_mdb_put()
+ *
+ * Release the resources associated with the in-core MDB.  */
+void hfs_mdb_put(struct hfs_mdb *mdb, int readonly) {
+	int lcv;
+
+	/* invalidate cached catalog entries */
+	hfs_cat_invalidate(mdb);
+
+	/* free the B-trees */
+	hfs_btree_free(mdb->ext_tree);
+	hfs_btree_free(mdb->cat_tree);
+
+	/* free the volume bitmap */
+	for (lcv = 0; lcv < HFS_BM_MAXBLOCKS; ++lcv) {
+		hfs_buffer_put(mdb->bitmap[lcv]);
+	}
+
+	/* update volume attributes */
+	if (!readonly) {
+		struct raw_mdb *raw = 
+				(struct raw_mdb *)hfs_buffer_data(mdb->buf);
+		hfs_put_ns(mdb->attrib, raw->drAtrb);
+		hfs_buffer_dirty(mdb->buf);
+	}
+
+	/* free the buffers holding the primary and alternate MDBs */
+	hfs_buffer_put(mdb->buf);
+	hfs_buffer_put(mdb->alt_buf);
+
+	/* free the MDB */
+	HFS_DELETE(mdb);
+}
diff --git a/fs/hfs/part_tbl.c b/fs/hfs/part_tbl.c
new file mode 100644
index 00000000000000..2211572262bded
--- /dev/null
+++ b/fs/hfs/part_tbl.c
@@ -0,0 +1,244 @@
+/*
+ * linux/fs/hfs/part_tbl.c
+ *
+ * Copyright (C) 1996-1997  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * Original code to handle the new style Mac partition table based on
+ * a patch contributed by Holger Schemel (aeglos@valinor.owl.de).
+ *
+ * "XXX" in a comment is a note to myself to consider changing something.
+ *
+ * In function preconditions the term "valid" applied to a pointer to
+ * a structure means that the pointer is non-NULL and the structure it
+ * points to has all fields initialized to consistent values.
+ *
+ * The code in this file initializes some structures which contain
+ * pointers by calling memset(&foo, 0, sizeof(foo)).
+ * This produces the desired behavior only due to the non-ANSI
+ * assumption that the machine representation of NULL is all zeros.
+ */
+
+#include "hfs.h"
+
+/*================ File-local data types ================*/
+
+/*
+ * The Macintosh Driver Descriptor Block
+ *
+ * On partitioned Macintosh media this is block 0.
+ * We really only need the "magic number" to check for partitioned media.
+ */
+struct hfs_drvr_desc {
+	hfs_word_t	ddSig;		/* The signature word */
+	/* a bunch more stuff we don't need */
+};
+
+/* 
+ * The new style Mac partition map
+ *
+ * For each partition on the media there is a physical block (512-byte
+ * block) containing one of these structures.  These blocks are
+ * contiguous starting at block 1.
+ */
+struct new_pmap {
+	hfs_word_t	pmSig;		/* Signature bytes to verify
+					   that this is a partition
+					   map block */
+	hfs_word_t	reSigPad;	/* padding */
+	hfs_lword_t	pmMapBlkCnt;	/* (At least in block 1) this
+					   is the number of partition
+					   map blocks */
+	hfs_lword_t	pmPyPartStart;	/* The physical block number
+					   of the first block in this
+					   partition */
+	hfs_lword_t	pmPartBlkCnt;	/* The number of physical
+					   blocks in this partition */
+	hfs_byte_t	pmPartName[32];	/* (null terminated?) string
+					   giving the name of this
+					   partition */
+	hfs_byte_t	pmPartType[32];	/* (null terminated?) string
+					   giving the type of this
+					   partition */
+	/* a bunch more stuff we don't need */
+};
+
+/* 
+ * The old style Mac partition map
+ *
+ * The partition map consists for a 2-byte signature followed by an
+ * array of these structures.  The map is terminated with an all-zero
+ * one of these.
+ */
+struct old_pmap {
+	hfs_word_t		pdSig;	/* Signature bytes */
+	struct 	old_pmap_entry {
+		hfs_lword_t	pdStart;
+		hfs_lword_t	pdSize;
+		hfs_lword_t	pdFSID;
+	}	pdEntry[42];
+} __attribute__((packed));
+
+/*================ File-local functions ================*/
+
+/*
+ * parse_new_part_table()
+ *
+ * Parse a new style partition map looking for the
+ * start and length of the 'part'th HFS partition.
+ */
+static int parse_new_part_table(hfs_sysmdb sys_mdb, hfs_buffer buf,
+				int part, hfs_s32 *size, hfs_s32 *start)
+{
+	struct new_pmap *pm = (struct new_pmap *)hfs_buffer_data(buf);
+	hfs_u32 pmap_entries = hfs_get_hl(pm->pmMapBlkCnt);
+	int hfs_part = 0;
+	int entry;
+
+	for (entry = 0; (entry < pmap_entries) && !(*start); ++entry) {
+		if (entry) {
+			/* read the next partition map entry */
+			buf = hfs_buffer_get(sys_mdb, HFS_PMAP_BLK + entry, 1);
+			if (!hfs_buffer_ok(buf)) {
+				hfs_warn("hfs_fs: unable to "
+				         "read partition map.\n");
+				goto bail;
+			}
+			pm = (struct new_pmap *)hfs_buffer_data(buf);
+			if (hfs_get_ns(pm->pmSig) !=
+						htons(HFS_NEW_PMAP_MAGIC)) {
+				hfs_warn("hfs_fs: invalid "
+				         "entry in partition map\n");
+				hfs_buffer_put(buf);
+				goto bail;
+			}
+		}
+
+		/* look for an HFS partition */
+		if (!memcmp(pm->pmPartType,"Apple_HFS",9) && 
+		    ((hfs_part++) == part)) {
+			/* Found it! */
+			*start = hfs_get_hl(pm->pmPyPartStart);
+			*size = hfs_get_hl(pm->pmPartBlkCnt);
+		}
+
+		hfs_buffer_put(buf);
+	}
+
+	return 0;
+
+bail:
+	return 1;
+}
+
+/*
+ * parse_old_part_table()
+ *
+ * Parse a old style partition map looking for the
+ * start and length of the 'part'th HFS partition.
+ */
+static int parse_old_part_table(hfs_sysmdb sys_mdb, hfs_buffer buf,
+				int part, hfs_s32 *size, hfs_s32 *start)
+{
+	struct old_pmap *pm = (struct old_pmap *)hfs_buffer_data(buf);
+	struct old_pmap_entry *p = &pm->pdEntry[0];
+	int hfs_part = 0;
+
+	while ((p->pdStart || p->pdSize || p->pdFSID) && !(*start)) {
+		/* look for an HFS partition */
+		if ((hfs_get_nl(p->pdFSID) == htonl(0x54465331)/*"TFS1"*/) &&
+		    ((hfs_part++) == part)) {
+			/* Found it! */
+			*start = hfs_get_hl(p->pdStart);
+			*size = hfs_get_hl(p->pdSize);
+		}
+		++p;
+	}
+	hfs_buffer_put(buf);
+
+	return 0;
+}
+
+/*================ Global functions ================*/
+
+/*
+ * hfs_part_find()
+ *
+ * Parse the partition map looking for the
+ * start and length of the 'part'th HFS partition.
+ */
+int hfs_part_find(hfs_sysmdb sys_mdb, int part, int silent,
+		  hfs_s32 *size, hfs_s32 *start)
+{
+	hfs_buffer buf;
+	hfs_u16 sig;
+	int dd_found = 0;
+	int retval = 1;
+
+	/* Read block 0 to see if this media is partitioned */
+	buf = hfs_buffer_get(sys_mdb, HFS_DD_BLK, 1);
+	if (!hfs_buffer_ok(buf)) {
+		hfs_warn("hfs_fs: Unable to read block 0.\n");
+		goto done;
+	}
+	sig = hfs_get_ns(((struct hfs_drvr_desc *)hfs_buffer_data(buf))->ddSig);
+	hfs_buffer_put(buf);
+
+        if (sig == htons(HFS_DRVR_DESC_MAGIC)) {
+		/* We are definitely on partitioned media. */
+		dd_found = 1;
+	}
+
+	buf = hfs_buffer_get(sys_mdb, HFS_PMAP_BLK, 1);
+	if (!hfs_buffer_ok(buf)) {
+		hfs_warn("hfs_fs: Unable to read block 1.\n");
+		goto done;
+	}
+
+	*size = *start = 0;
+
+	switch (hfs_get_ns(hfs_buffer_data(buf))) {
+	case __constant_htons(HFS_OLD_PMAP_MAGIC):
+		retval = parse_old_part_table(sys_mdb, buf, part, size, start);
+		break;
+
+	case __constant_htons(HFS_NEW_PMAP_MAGIC):
+		retval = parse_new_part_table(sys_mdb, buf, part, size, start);
+		break;
+
+	default:
+		if (dd_found) {
+			/* The media claimed to have a partition map */
+			if (!silent) {
+				hfs_warn("hfs_fs: This disk has an "
+					 "unrecognized partition map type.\n");
+			}
+		} else {
+			/* Conclude that the media is not partitioned */
+			retval = 0;
+		}
+		goto done;
+	}
+
+	if (!retval) {
+		if (*start == 0) {
+			if (part) {
+				hfs_warn("hfs_fs: unable to locate "
+				         "HFS partition number %d.\n", part);
+			} else {
+				hfs_warn("hfs_fs: unable to locate any "
+					 "HFS partitions.\n");
+			}
+			retval = 1;
+		} else if (*size < 0) {
+			hfs_warn("hfs_fs: Partition size > 1 Terabyte.\n");
+			retval = 1;
+		} else if (*start < 0) {
+			hfs_warn("hfs_fs: Partition begins beyond 1 "
+				 "Terabyte.\n");
+			retval = 1;
+		}
+	}
+done:
+	return retval;
+}
diff --git a/fs/hfs/string.c b/fs/hfs/string.c
new file mode 100644
index 00000000000000..f499b9a805bbde
--- /dev/null
+++ b/fs/hfs/string.c
@@ -0,0 +1,144 @@
+/*
+ * linux/fs/hfs/string.c
+ *
+ * Copyright (C) 1995-1997  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * This file contains the string comparison function for the
+ * Macintosh character set.
+ *
+ * The code in this file is derived from code which is copyright
+ * 1986, 1989, 1990 by Abacus Research and Development, Inc. (ARDI)
+ * It is used here by the permission of ARDI's president Cliff Matthews.
+ *
+ * If you discover bugs in this code please notify both the author of the
+ * Linux HFS file system: hargrove@sccm.stanford.edu (Paul H. Hargrove)
+ * and the author of ARDI's HFS code: ctm@ardi.com (Clifford T. Matthews)
+ *
+ * "XXX" in a comment is a note to myself to consider changing something.
+ */
+
+#include "hfs.h"
+
+/*================ File-local variables ================*/
+
+/*
+ * unsigned char caseorder[]
+ *
+ * Defines the lexical ordering of characters on the Macintosh
+ *
+ * Composition of the 'casefold' and 'order' tables from ARDI's code
+ * with the entry for 0x20 changed to match that for 0xCA to remove
+ * special case for those two characters.
+ */
+static unsigned char caseorder[256] = {
+0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0A,0x0B,0x0C,0x0D,0x0E,0x0F,
+0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1A,0x1B,0x1C,0x1D,0x1E,0x1F,
+0x20,0x22,0x23,0x28,0x29,0x2A,0x2B,0x2C,0x2F,0x30,0x31,0x32,0x33,0x34,0x35,0x36,
+0x37,0x38,0x39,0x3A,0x3B,0x3C,0x3D,0x3E,0x3F,0x40,0x41,0x42,0x43,0x44,0x45,0x46,
+0x47,0x48,0x57,0x59,0x5D,0x5F,0x66,0x68,0x6A,0x6C,0x72,0x74,0x76,0x78,0x7A,0x7E,
+0x8C,0x8E,0x90,0x92,0x95,0x97,0x9E,0xA0,0xA2,0xA4,0xA7,0xA9,0xAA,0xAB,0xAC,0xAD,
+0x4E,0x48,0x57,0x59,0x5D,0x5F,0x66,0x68,0x6A,0x6C,0x72,0x74,0x76,0x78,0x7A,0x7E,
+0x8C,0x8E,0x90,0x92,0x95,0x97,0x9E,0xA0,0xA2,0xA4,0xA7,0xAF,0xB0,0xB1,0xB2,0xB3,
+0x4A,0x4C,0x5A,0x60,0x7B,0x7F,0x98,0x4F,0x49,0x51,0x4A,0x4B,0x4C,0x5A,0x60,0x63,
+0x64,0x65,0x6E,0x6F,0x70,0x71,0x7B,0x84,0x85,0x86,0x7F,0x80,0x9A,0x9B,0x9C,0x98,
+0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0x94,0xBB,0xBC,0xBD,0xBE,0xBF,0xC0,0x4D,0x81,
+0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0x55,0x8A,0xCC,0x4D,0x81,
+0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0x26,0x27,0xD4,0x20,0x49,0x4B,0x80,0x82,0x82,
+0xD5,0xD6,0x24,0x25,0x2D,0x2E,0xD7,0xD8,0xA6,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF,
+0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,
+0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF
+};
+
+/*
+ * unsigned char casefold[]
+ *
+ * Defines the mapping to lowercase characters on the Macintosh
+ *
+ * "Inverse" of the 'casefold' from ARDI's code.
+ */
+static unsigned char casefold[256] = {
+0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0A,0x0B,0x0C,0x0D,0x0E,0x0F,
+0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1A,0x1B,0x1C,0x1D,0x1E,0x1F,
+0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29,0x2A,0x2B,0x2C,0x2D,0x2E,0x2F,
+0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x3A,0x3B,0x3C,0x3D,0x3E,0x3F,
+0x40,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6A,0x6B,0x6C,0x6D,0x6E,0x6F,
+0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A,0x5B,0x5C,0x5D,0x5E,0x5F,
+0x41,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6A,0x6B,0x6C,0x6D,0x6E,0x6F,
+0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A,0x7B,0x7C,0x7D,0x7E,0x7F,
+0x8A,0x8C,0x8D,0x8E,0x96,0x9A,0x9F,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,
+0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F,
+0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xBE,0xBF,
+0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF,
+0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0x88,0x8B,0x9B,0xCF,0xCF,
+0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF,
+0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,
+0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF
+};
+
+/*================ Global functions ================*/
+
+/*
+ * Hash a string to an integer in a case-independent way
+ */
+unsigned int hfs_strhash(const unsigned char *name, unsigned int len)
+{
+	unsigned long hash = init_name_hash();
+
+	while (len--)
+	        hash = partial_name_hash(caseorder[*name++],
+					 hash);
+	return end_name_hash(hash);
+}
+
+/*
+ * Compare two strings in the HFS filename character ordering
+ * Returns positive, negative, or zero, not just 0 or (+/-)1
+ *
+ * Equivalent to ARDI's call:
+ *	ROMlib_RelString(s1+1, s2+1, true, false, (s1[0]<<16) | s2[0])
+ */
+int hfs_strcmp(const unsigned char *s1, unsigned int len1,
+	       const unsigned char *s2, unsigned int len2)
+{
+	int len, tmp;
+
+	len = (len1 > len2) ? len2 : len1;
+
+	while (len--) {
+		if ((tmp = (int)caseorder[*(s1++)] -
+		     (int)caseorder[*(s2++)])) {
+			return tmp;
+		}
+	}
+	return len1 - len2;
+}
+
+/*
+ * Test for equality of two strings in the HFS filename character ordering.
+ */
+int hfs_streq(const unsigned char *s1, unsigned int len1,
+	      const unsigned char *s2, unsigned int len2)
+{
+	if (len1 != len2) {
+		return 0;
+	}
+
+	while (len1--) {
+		if (caseorder[*(s1++)] != caseorder[*(s2++)]) {
+			return 0;
+		}
+	}
+	return 1;
+}
+
+/*
+ * Convert a string to the Macintosh version of lower case.
+ */
+void hfs_tolower(unsigned char *p, int len)
+{
+	while (len--) {
+		*p = casefold[*p];
+		++p;
+	}
+}
diff --git a/fs/hfs/super.c b/fs/hfs/super.c
new file mode 100644
index 00000000000000..d90d7bd43d425b
--- /dev/null
+++ b/fs/hfs/super.c
@@ -0,0 +1,529 @@
+/*
+ * linux/fs/hfs/super.c
+ *
+ * Copyright (C) 1995-1997  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * This file contains hfs_read_super(), some of the super_ops and
+ * init_module() and cleanup_module().	The remaining super_ops are in
+ * inode.c since they deal with inodes.
+ *
+ * Based on the minix file system code, (C) 1991, 1992 by Linus Torvalds
+ *
+ * "XXX" in a comment is a note to myself to consider changing something.
+ *
+ * In function preconditions the term "valid" applied to a pointer to
+ * a structure means that the pointer is non-NULL and the structure it
+ * points to has all fields initialized to consistent values.
+ *
+ * The code in this file initializes some structures which contain
+ * pointers by calling memset(&foo, 0, sizeof(foo)).
+ * This produces the desired behavior only due to the non-ANSI
+ * assumption that the machine representation of NULL is all zeros.
+ */
+
+#include "hfs.h"
+#include <linux/hfs_fs_sb.h>
+#include <linux/hfs_fs_i.h>
+#include <linux/hfs_fs.h>
+
+#include <linux/config.h> /* for CONFIG_MAC_PARTITION */
+#include <linux/blkdev.h>
+#include <linux/module.h>
+#include <linux/init.h>
+
+MODULE_LICENSE("GPL");
+
+/*================ Forward declarations ================*/
+
+static void hfs_read_inode(struct inode *);
+static void hfs_put_super(struct super_block *);
+static int hfs_statfs(struct super_block *, struct statfs *);
+static void hfs_write_super(struct super_block *);
+
+/*================ Global variables ================*/
+
+static struct super_operations hfs_super_operations = { 
+	read_inode:	hfs_read_inode,
+	put_inode:	hfs_put_inode,
+	put_super:	hfs_put_super,
+	write_super:	hfs_write_super,
+	statfs:		hfs_statfs,
+	remount_fs:     hfs_remount,
+};
+
+/*================ File-local variables ================*/
+
+static DECLARE_FSTYPE_DEV(hfs_fs, "hfs", hfs_read_super);
+
+/*================ File-local functions ================*/
+
+/* 
+ * hfs_read_inode()
+ *
+ * this doesn't actually do much. hfs_iget actually fills in the 
+ * necessary inode information.
+ */
+static void hfs_read_inode(struct inode *inode)
+{
+  inode->i_mode = 0;
+}
+
+/*
+ * hfs_write_super()
+ *
+ * Description:
+ *   This function is called by the VFS only. When the filesystem
+ *   is mounted r/w it updates the MDB on disk.
+ * Input Variable(s):
+ *   struct super_block *sb: Pointer to the hfs superblock
+ * Output Variable(s):
+ *   NONE
+ * Returns:
+ *   void
+ * Preconditions:
+ *   'sb' points to a "valid" (struct super_block).
+ * Postconditions:
+ *   The MDB is marked 'unsuccessfully unmounted' by clearing bit 8 of drAtrb
+ *   (hfs_put_super() must set this flag!). Some MDB fields are updated
+ *   and the MDB buffer is written to disk by calling hfs_mdb_commit().
+ */
+static void hfs_write_super(struct super_block *sb)
+{
+	struct hfs_mdb *mdb = HFS_SB(sb)->s_mdb;
+
+	/* is this a valid hfs superblock? */
+	if (!sb || sb->s_magic != HFS_SUPER_MAGIC) {
+		return;
+	}
+
+	if (!(sb->s_flags & MS_RDONLY)) {
+		/* sync everything to the buffers */
+		hfs_mdb_commit(mdb, 0);
+	}
+	sb->s_dirt = 0;
+}
+
+/*
+ * hfs_put_super()
+ *
+ * This is the put_super() entry in the super_operations structure for
+ * HFS filesystems.  The purpose is to release the resources
+ * associated with the superblock sb.
+ */
+static void hfs_put_super(struct super_block *sb)
+{
+	struct hfs_mdb *mdb = HFS_SB(sb)->s_mdb;
+ 
+	if (!(sb->s_flags & MS_RDONLY)) {
+		hfs_mdb_commit(mdb, 0);
+		sb->s_dirt = 0;
+	}
+
+	/* release the MDB's resources */
+	hfs_mdb_put(mdb, sb->s_flags & MS_RDONLY);
+
+	/* restore default blocksize for the device */
+	set_blocksize(sb->s_dev, BLOCK_SIZE);
+}
+
+/*
+ * hfs_statfs()
+ *
+ * This is the statfs() entry in the super_operations structure for
+ * HFS filesystems.  The purpose is to return various data about the
+ * filesystem.
+ *
+ * changed f_files/f_ffree to reflect the fs_ablock/free_ablocks.
+ */
+static int hfs_statfs(struct super_block *sb, struct statfs *buf)
+{
+	struct hfs_mdb *mdb = HFS_SB(sb)->s_mdb;
+
+	buf->f_type = HFS_SUPER_MAGIC;
+	buf->f_bsize = HFS_SECTOR_SIZE;
+	buf->f_blocks = mdb->alloc_blksz * mdb->fs_ablocks;
+	buf->f_bfree = mdb->alloc_blksz * mdb->free_ablocks;
+	buf->f_bavail = buf->f_bfree;
+	buf->f_files = mdb->fs_ablocks;  
+	buf->f_ffree = mdb->free_ablocks;
+	buf->f_namelen = HFS_NAMELEN;
+
+	return 0;
+}
+
+/*
+ * parse_options()
+ * 
+ * adapted from linux/fs/msdos/inode.c written 1992,93 by Werner Almesberger
+ * This function is called by hfs_read_super() to parse the mount options.
+ */
+static int parse_options(char *options, struct hfs_sb_info *hsb, int *part)
+{
+	char *this_char, *value;
+	char names, fork;
+
+	if (hsb->magic != HFS_SB_MAGIC) {
+		/* initialize the sb with defaults */
+		hsb->magic = HFS_SB_MAGIC;
+		hsb->s_uid   = current->uid;
+		hsb->s_gid   = current->gid;
+		hsb->s_umask = current->fs->umask;
+		hsb->s_type    = 0x3f3f3f3f;	/* == '????' */
+		hsb->s_creator = 0x3f3f3f3f;	/* == '????' */
+		hsb->s_lowercase = 0;
+		hsb->s_quiet     = 0;
+		hsb->s_afpd      = 0;
+		/* default version. 0 just selects the defaults */
+		hsb->s_version   = 0; 
+		hsb->s_conv = 'b';
+		names = '?';
+		fork = '?';
+		*part = 0;
+	}
+
+	if (!options) {
+		goto done;
+	}
+	for (this_char = strtok(options,","); this_char;
+	     this_char = strtok(NULL,",")) {
+		if ((value = strchr(this_char,'=')) != NULL) {
+			*value++ = 0;
+		}
+	/* Numeric-valued options */
+		if (!strcmp(this_char, "version")) {
+			if (!value || !*value) {
+				return 0;
+			}
+			hsb->s_version = simple_strtoul(value,&value,0);
+			if (*value) {
+				return 0;
+			}
+		} else if (!strcmp(this_char,"uid")) {
+			if (!value || !*value) {
+				return 0;
+			}
+			hsb->s_uid = simple_strtoul(value,&value,0);
+			if (*value) {
+				return 0;
+			}
+		} else if (!strcmp(this_char,"gid")) {
+			if (!value || !*value) {
+				return 0;
+			}
+			hsb->s_gid = simple_strtoul(value,&value,0);
+			if (*value) {
+				return 0;
+			}
+		} else if (!strcmp(this_char,"umask")) {
+			if (!value || !*value) {
+				return 0;
+			}
+			hsb->s_umask = simple_strtoul(value,&value,8);
+			if (*value) {
+				return 0;
+			}
+		} else if (!strcmp(this_char,"part")) {
+			if (!value || !*value) {
+				return 0;
+			}
+			*part = simple_strtoul(value,&value,0);
+			if (*value) {
+				return 0;
+			}
+	/* String-valued options */
+		} else if (!strcmp(this_char,"type") && value) {
+			if (strlen(value) != 4) {
+				return 0;
+			}
+			hsb->s_type = hfs_get_nl(value);
+		} else if (!strcmp(this_char,"creator") && value) {
+			if (strlen(value) != 4) {
+				return 0;
+			}
+			hsb->s_creator = hfs_get_nl(value);
+	/* Boolean-valued options */
+		} else if (!strcmp(this_char,"quiet")) {
+			if (value) {
+				return 0;
+			}
+			hsb->s_quiet = 1;
+		} else if (!strcmp(this_char,"afpd")) {
+			if (value) {
+				return 0;
+			}
+			hsb->s_afpd = 1;
+	/* Multiple choice options */
+		} else if (!strcmp(this_char,"names") && value) {
+			if ((*value && !value[1] && strchr("ntal78c",*value)) ||
+			    !strcmp(value,"netatalk") ||
+			    !strcmp(value,"trivial") ||
+			    !strcmp(value,"alpha") ||
+			    !strcmp(value,"latin") ||
+			    !strcmp(value,"7bit") ||
+			    !strcmp(value,"8bit") ||
+			    !strcmp(value,"cap")) {
+				names = *value;
+			} else {
+				return 0;
+			}
+		} else if (!strcmp(this_char,"fork") && value) {
+			if ((*value && !value[1] && strchr("nsdc",*value)) ||
+			    !strcmp(value,"netatalk") ||
+			    !strcmp(value,"single") ||
+			    !strcmp(value,"double") ||
+			    !strcmp(value,"cap")) {
+				fork = *value;
+			} else {
+				return 0;
+			}
+		} else if (!strcmp(this_char,"case") && value) {
+			if ((*value && !value[1] && strchr("la",*value)) ||
+			    !strcmp(value,"lower") ||
+			    !strcmp(value,"asis")) {
+				hsb->s_lowercase = (*value == 'l');
+			} else {
+				return 0;
+			}
+		} else if (!strcmp(this_char,"conv") && value) {
+			if ((*value && !value[1] && strchr("bta",*value)) ||
+			    !strcmp(value,"binary") ||
+			    !strcmp(value,"text") ||
+			    !strcmp(value,"auto")) {
+				hsb->s_conv = *value;
+			} else {
+				return 0;
+			}
+		} else {
+			return 0;
+		}
+	}
+
+done:
+	/* Parse the "fork" and "names" options */
+	if (fork == '?') {
+		fork = hsb->s_afpd ? 'n' : 'c';
+	}
+	switch (fork) {
+	default:
+	case 'c':
+		hsb->s_ifill = hfs_cap_ifill;
+		hsb->s_reserved1 = hfs_cap_reserved1;
+		hsb->s_reserved2 = hfs_cap_reserved2;
+		break;
+
+	case 's':
+		hfs_warn("hfs_fs: AppleSingle not yet implemented.\n");
+		return 0;
+		/* break; */
+	
+	case 'd':
+		hsb->s_ifill = hfs_dbl_ifill;
+		hsb->s_reserved1 = hfs_dbl_reserved1;
+		hsb->s_reserved2 = hfs_dbl_reserved2;
+		break;
+
+	case 'n':
+		hsb->s_ifill = hfs_nat_ifill;
+		hsb->s_reserved1 = hfs_nat_reserved1;
+		hsb->s_reserved2 = hfs_nat_reserved2;
+		break;
+	}
+
+	if (names == '?') {
+		names = fork;
+	}
+	switch (names) {
+	default:
+	case 'n':
+		hsb->s_nameout = hfs_colon2mac;
+		hsb->s_namein = hfs_mac2nat;
+		break;
+
+	case 'c':
+		hsb->s_nameout = hfs_colon2mac;
+		hsb->s_namein = hfs_mac2cap;
+		break;
+
+	case 't':
+		hsb->s_nameout = hfs_triv2mac;
+		hsb->s_namein = hfs_mac2triv;
+		break;
+
+	case '7':
+		hsb->s_nameout = hfs_prcnt2mac;
+		hsb->s_namein = hfs_mac2seven;
+		break;
+
+	case '8':
+		hsb->s_nameout = hfs_prcnt2mac;
+		hsb->s_namein = hfs_mac2eight;
+		break;
+
+	case 'l':
+		hsb->s_nameout = hfs_latin2mac;
+		hsb->s_namein = hfs_mac2latin;
+		break;
+
+ 	case 'a':	/* 's' and 'd' are unadvertised aliases for 'alpha', */
+ 	case 's':	/* since 'alpha' is the default if fork=s or fork=d. */
+ 	case 'd':	/* (It is also helpful for poor typists!)           */
+		hsb->s_nameout = hfs_prcnt2mac;
+		hsb->s_namein = hfs_mac2alpha;
+		break;
+	}
+
+	return 1;
+}
+
+/*================ Global functions ================*/
+
+/*
+ * hfs_read_super()
+ *
+ * This is the function that is responsible for mounting an HFS
+ * filesystem.	It performs all the tasks necessary to get enough data
+ * from the disk to read the root inode.  This includes parsing the
+ * mount options, dealing with Macintosh partitions, reading the
+ * superblock and the allocation bitmap blocks, calling
+ * hfs_btree_init() to get the necessary data about the extents and
+ * catalog B-trees and, finally, reading the root inode into memory.
+ */
+struct super_block *hfs_read_super(struct super_block *s, void *data,
+				   int silent)
+{
+	struct hfs_mdb *mdb;
+	struct hfs_cat_key key;
+	kdev_t dev = s->s_dev;
+	int dev_blocksize;
+	hfs_s32 part_size, part_start;
+	struct inode *root_inode;
+	int part;
+
+	memset(HFS_SB(s), 0, sizeof(*(HFS_SB(s))));	
+	if (!parse_options((char *)data, HFS_SB(s), &part)) {
+		hfs_warn("hfs_fs: unable to parse mount options.\n");
+		goto bail3;
+	}
+
+	/* set the device driver to 512-byte blocks */
+	if (set_blocksize(dev, HFS_SECTOR_SIZE) < 0) {
+		dev_blocksize = get_hardsect_size(dev);
+		hfs_warn("hfs_fs: unsupported device block size: %d\n",
+			 dev_blocksize);
+		goto bail3;
+	}
+	s->s_blocksize_bits = HFS_SECTOR_SIZE_BITS;
+	s->s_blocksize = HFS_SECTOR_SIZE;
+
+#ifdef CONFIG_MAC_PARTITION
+	/* check to see if we're in a partition */
+	mdb = hfs_mdb_get(s, s->s_flags & MS_RDONLY, 0);
+
+	/* erk. try parsing the partition table ourselves */
+	if (!mdb) {
+		if (hfs_part_find(s, part, silent, &part_size, &part_start)) {
+	    		goto bail2;
+	  	}
+	  	mdb = hfs_mdb_get(s, s->s_flags & MS_RDONLY, part_start);
+	}
+#else
+	if (hfs_part_find(s, part, silent, &part_size, &part_start)) {
+		goto bail2;
+	}
+
+	mdb = hfs_mdb_get(s, s->s_flags & MS_RDONLY, part_start);
+#endif
+
+	if (!mdb) {
+		if (!silent) {
+			hfs_warn("VFS: Can't find a HFS filesystem on dev %s.\n",
+			       kdevname(dev));
+		}
+		goto bail2;
+	}
+
+	if (mdb->attrib & (HFS_SB_ATTRIB_HLOCK | HFS_SB_ATTRIB_SLOCK)) {
+		if (!silent)
+			hfs_warn("hfs_fs: Filesystem is marked locked, mounting read-only.\n");
+		s->s_flags |= MS_RDONLY;
+	}
+
+	HFS_SB(s)->s_mdb = mdb;
+	if (HFS_ITYPE(mdb->next_id) != 0) {
+		hfs_warn("hfs_fs: too many files.\n");
+		goto bail1;
+	}
+
+	s->s_magic = HFS_SUPER_MAGIC;
+	s->s_op = &hfs_super_operations;
+
+	/* try to get the root inode */
+	hfs_cat_build_key(htonl(HFS_POR_CNID),
+			  (struct hfs_name *)(mdb->vname), &key);
+
+	root_inode = hfs_iget(hfs_cat_get(mdb, &key), HFS_ITYPE_NORM, NULL);
+	if (!root_inode) 
+		goto bail_no_root;
+	  
+	s->s_root = d_alloc_root(root_inode);
+	if (!s->s_root) 
+		goto bail_no_root;
+
+	/* fix up pointers. */
+	HFS_I(root_inode)->entry->sys_entry[HFS_ITYPE_TO_INT(HFS_ITYPE_NORM)] =
+	  s->s_root;
+	s->s_root->d_op = &hfs_dentry_operations;
+
+	/* everything's okay */
+	return s;
+
+bail_no_root: 
+	hfs_warn("hfs_fs: get root inode failed.\n");
+	iput(root_inode);
+bail1:
+	hfs_mdb_put(mdb, s->s_flags & MS_RDONLY);
+bail2:
+	set_blocksize(dev, BLOCK_SIZE);
+bail3:
+	return NULL;	
+}
+
+int hfs_remount(struct super_block *s, int *flags, char *data)
+{
+        int part; /* ignored */
+
+        if (!parse_options(data, HFS_SB(s), &part)) {
+                hfs_warn("hfs_fs: unable to parse mount options.\n");
+                return -EINVAL;
+	}
+
+        if ((*flags & MS_RDONLY) == (s->s_flags & MS_RDONLY))
+                return 0;
+	if (!(*flags & MS_RDONLY)) {
+                if (HFS_SB(s)->s_mdb->attrib & (HFS_SB_ATTRIB_HLOCK | HFS_SB_ATTRIB_SLOCK)) {
+                        hfs_warn("hfs_fs: Filesystem is marked locked, leaving it read-only.\n");
+		        s->s_flags |= MS_RDONLY;
+			*flags |= MS_RDONLY;
+	        }
+        }
+	return 0;
+}
+
+static int __init init_hfs_fs(void)
+{
+        hfs_cat_init();
+	return register_filesystem(&hfs_fs);
+}
+
+static void __exit exit_hfs_fs(void) {
+	hfs_cat_free();
+	unregister_filesystem(&hfs_fs);
+}
+
+module_init(init_hfs_fs)
+module_exit(exit_hfs_fs)
+
+#if defined(DEBUG_ALL) || defined(DEBUG_MEM)
+long int hfs_alloc = 0;
+#endif
diff --git a/fs/hfs/sysdep.c b/fs/hfs/sysdep.c
new file mode 100644
index 00000000000000..c96107d5fcab21
--- /dev/null
+++ b/fs/hfs/sysdep.c
@@ -0,0 +1,109 @@
+/*
+ * linux/fs/hfs/sysdep.c
+ *
+ * Copyright (C) 1996  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * This file contains the code to do various system dependent things.
+ *
+ * "XXX" in a comment is a note to myself to consider changing something.
+ *
+ * In function preconditions the term "valid" applied to a pointer to
+ * a structure means that the pointer is non-NULL and the structure it
+ * points to has all fields initialized to consistent values.
+ */
+
+#include "hfs.h"
+#include <linux/hfs_fs_sb.h>
+#include <linux/hfs_fs_i.h>
+#include <linux/hfs_fs.h>
+#include <linux/smp_lock.h>
+
+static int hfs_revalidate_dentry(struct dentry *, int);
+static int hfs_hash_dentry(struct dentry *, struct qstr *);
+static int hfs_compare_dentry(struct dentry *, struct qstr *, struct qstr *);
+static void hfs_dentry_iput(struct dentry *, struct inode *);
+struct dentry_operations hfs_dentry_operations =
+{
+	d_revalidate:	hfs_revalidate_dentry,	
+	d_hash:		hfs_hash_dentry,
+	d_compare:	hfs_compare_dentry,
+	d_iput:		hfs_dentry_iput,
+};
+
+/*
+ * hfs_buffer_get()
+ *
+ * Return a buffer for the 'block'th block of the media.
+ * If ('read'==0) then the buffer is not read from disk.
+ */
+hfs_buffer hfs_buffer_get(hfs_sysmdb sys_mdb, int block, int read) {
+	hfs_buffer tmp = HFS_BAD_BUFFER;
+
+	if (read) {
+		tmp = sb_bread(sys_mdb, block);
+	} else {
+		tmp = sb_getblk(sys_mdb, block);
+		if (tmp) {
+			mark_buffer_uptodate(tmp, 1);
+		}
+	}
+	if (!tmp) {
+		hfs_error("hfs_fs: unable to read block 0x%08x from dev %s\n",
+			  block, hfs_mdb_name(sys_mdb));
+	}
+
+	return tmp;
+}
+
+/* dentry case-handling: just lowercase everything */
+
+/* hfs_strhash now uses the same hashing function as the dcache. */
+static int hfs_hash_dentry(struct dentry *dentry, struct qstr *this)
+{
+	if (this->len > HFS_NAMELEN)
+	        return 0;
+	
+	this->hash = hfs_strhash(this->name, this->len);
+	return 0;
+}
+
+/* return 1 on failure and 0 on success */
+static int hfs_compare_dentry(struct dentry *dentry, struct qstr *a, 
+			      struct qstr *b)
+{
+	if (a->len != b->len) return 1;
+
+	if (a->len > HFS_NAMELEN)
+	  return 1;
+
+	return !hfs_streq(a->name, a->len, b->name, b->len);
+}
+
+static void hfs_dentry_iput(struct dentry *dentry, struct inode *inode)
+{
+	struct hfs_cat_entry *entry = HFS_I(inode)->entry;
+
+	lock_kernel();
+	entry->sys_entry[HFS_ITYPE_TO_INT(HFS_ITYPE(inode->i_ino))] = NULL;
+	unlock_kernel();
+	iput(inode);
+}
+
+static int hfs_revalidate_dentry(struct dentry *dentry, int flags)
+{
+	struct inode *inode = dentry->d_inode;
+	int diff;
+
+	/* fix up inode on a timezone change */
+	lock_kernel();
+	if (inode && 
+	    (diff = (hfs_to_utc(0) - HFS_I(inode)->tz_secondswest))) {
+		inode->i_ctime += diff;
+		inode->i_atime += diff;
+		inode->i_mtime += diff;
+		HFS_I(inode)->tz_secondswest += diff;
+	}
+	unlock_kernel();
+	return 1;
+}
diff --git a/fs/hfs/trans.c b/fs/hfs/trans.c
new file mode 100644
index 00000000000000..64adf73fc5c675
--- /dev/null
+++ b/fs/hfs/trans.c
@@ -0,0 +1,556 @@
+/*
+ * linux/fs/hfs/trans.c
+ *
+ * Copyright (C) 1995-1997  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * This file contains routines for converting between the Macintosh
+ * character set and various other encodings.  This includes dealing
+ * with ':' vs. '/' as the path-element separator.
+ *
+ * Latin-1 translation based on code contributed by Holger Schemel
+ * (aeglos@valinor.owl.de).
+ *
+ * The '8-bit', '7-bit ASCII' and '7-bit alphanumeric' encodings are
+ * implementations of the three encodings recommended by Apple in the
+ * document "AppleSingle/AppleDouble Formats: Developer's Note
+ * (9/94)".  This document is available from Apple's Technical
+ * Information Library from the World Wide Web server
+ * www.info.apple.com.
+ *
+ * The 'CAP' encoding is an implementation of the naming scheme used
+ * by the Columbia AppleTalk Package, available for anonymous FTP from
+ * ????.
+ *
+ * "XXX" in a comment is a note to myself to consider changing something.
+ *
+ * In function preconditions the term "valid" applied to a pointer to
+ * a structure means that the pointer is non-NULL and the structure it
+ * points to has all fields initialized to consistent values.
+ */
+
+#include "hfs.h"
+#include <linux/hfs_fs_sb.h>
+#include <linux/hfs_fs_i.h>
+#include <linux/hfs_fs.h>
+
+/*================ File-local variables ================*/
+
+/* int->ASCII map for a single hex digit */
+static char hex[16] = {'0','1','2','3','4','5','6','7',
+		       '8','9','a','b','c','d','e','f'};
+/*
+ * Latin-1 to Mac character set map
+ *
+ * For the sake of consistency this map is generated from the Mac to
+ * Latin-1 map the first time it is needed.  This means there is just
+ * one map to maintain.
+ */
+static unsigned char latin2mac_map[128]; /* initially all zero */
+
+/*
+ * Mac to Latin-1 map for the upper 128 characters (both have ASCII in
+ * the lower 128 positions)
+ */
+static unsigned char mac2latin_map[128] = {
+	0xC4, 0xC5, 0xC7, 0xC9, 0xD1, 0xD6, 0xDC, 0xE1,
+	0xE0, 0xE2, 0xE4, 0xE3, 0xE5, 0xE7, 0xE9, 0xE8,
+	0xEA, 0xEB, 0xED, 0xEC, 0xEE, 0xEF, 0xF1, 0xF3,
+	0xF2, 0xF4, 0xF6, 0xF5, 0xFA, 0xF9, 0xFB, 0xFC,
+	0x00, 0xB0, 0xA2, 0xA3, 0xA7, 0xB7, 0xB6, 0xDF,
+	0xAE, 0xA9, 0x00, 0xB4, 0xA8, 0x00, 0xC6, 0xD8,
+	0x00, 0xB1, 0x00, 0x00, 0xA5, 0xB5, 0xF0, 0x00, 
+	0x00, 0x00, 0x00, 0xAA, 0xBA, 0x00, 0xE6, 0xF8,
+	0xBF, 0xA1, 0xAC, 0x00, 0x00, 0x00, 0x00, 0xAB,
+	0xBB, 0x00, 0xA0, 0xC0, 0xC3, 0xD5, 0x00, 0x00, 
+	0xAD, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF7, 0x00, 
+	0xFF, 0x00, 0x00, 0xA4, 0x00, 0x00, 0x00, 0x00, 
+	0x00, 0x00, 0xB8, 0x00, 0x00, 0xC2, 0xCA, 0xC1,
+	0xCB, 0xC8, 0xCD, 0xCE, 0xCF, 0xCC, 0xD3, 0xD4,
+	0x00, 0xD2, 0xDA, 0xDB, 0xD9, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+/*================ File-local functions ================*/
+
+/*
+ * dehex()
+ *
+ * Given a hexadecimal digit in ASCII, return the integer representation.
+ */
+static inline const unsigned char dehex(char c) {
+	if ((c>='0')&&(c<='9')) {
+		return c-'0';
+	}
+	if ((c>='a')&&(c<='f')) {
+		return c-'a'+10;
+	}
+	if ((c>='A')&&(c<='F')) {
+		return c-'A'+10;
+	}
+	return 0xff;
+}
+
+/*================ Global functions ================*/
+
+/*
+ * hfs_mac2nat()
+ *
+ * Given a 'Pascal String' (a string preceded by a length byte) in
+ * the Macintosh character set produce the corresponding filename using
+ * the Netatalk name-mangling scheme, returning the length of the
+ * mangled filename.  Note that the output string is not NULL terminated.
+ *
+ * The name-mangling works as follows:
+ * Characters 32-126 (' '-'~') except '/' and any initial '.' are passed
+ * unchanged from input to output.  The remaining characters are replaced
+ * by three characters: ':xx' where xx is the hexadecimal representation
+ * of the character, using lowercase 'a' through 'f'.
+ */
+int hfs_mac2nat(char *out, const struct hfs_name *in) {
+	unsigned char c;
+	const unsigned char *p = in->Name;
+	int len = in->Len;
+	int count = 0;
+
+	/* Special case for .AppleDesktop which in the
+	   distant future may be a pseudodirectory. */
+	if (strncmp(".AppleDesktop", p, len) == 0) {
+		strncpy(out, p, 13);
+		return 13;
+	}
+
+	while (len--) {
+		c = *p++;
+		if ((c<32) || (c=='/') || (c>126) || (!count && (c=='.'))) {
+			*out++ = ':';
+			*out++ = hex[(c>>4) & 0xf];
+			*out++ = hex[c & 0xf];
+			count += 3;
+		} else {
+			*out++ = c;
+			count++;
+		}
+	}
+	return count;
+}
+
+/*
+ * hfs_mac2cap()
+ *
+ * Given a 'Pascal String' (a string preceded by a length byte) in
+ * the Macintosh character set produce the corresponding filename using
+ * the CAP name-mangling scheme, returning the length of the mangled
+ * filename.  Note that the output string is not NULL terminated.
+ *
+ * The name-mangling works as follows:
+ * Characters 32-126 (' '-'~') except '/' are passed unchanged from
+ * input to output.  The remaining characters are replaced by three
+ * characters: ':xx' where xx is the hexadecimal representation of the
+ * character, using lowercase 'a' through 'f'.
+ */
+int hfs_mac2cap(char *out, const struct hfs_name *in) {
+	unsigned char c;
+	const unsigned char *p = in->Name;
+	int len = in->Len;
+	int count = 0;
+
+	while (len--) {
+		c = *p++;
+		if ((c<32) || (c=='/') || (c>126)) {
+			*out++ = ':';
+			*out++ = hex[(c>>4) & 0xf];
+			*out++ = hex[c & 0xf];
+			count += 3;
+		} else {
+			*out++ = c;
+			count++;
+		}
+	}
+	return count;
+}
+
+/*
+ * hfs_mac2eight()
+ *
+ * Given a 'Pascal String' (a string preceded by a length byte) in
+ * the Macintosh character set produce the corresponding filename using
+ * the '8-bit' name-mangling scheme, returning the length of the
+ * mangled filename.  Note that the output string is not NULL
+ * terminated.
+ *
+ * This is one of the three recommended naming conventions described
+ * in Apple's document "AppleSingle/AppleDouble Formats: Developer's
+ * Note (9/94)"
+ *
+ * The name-mangling works as follows:
+ * Characters 0, '%' and '/' are replaced by three characters: '%xx'
+ * where xx is the hexadecimal representation of the character, using
+ * lowercase 'a' through 'f'.  All other characters are passed
+ * unchanged from input to output.  Note that this format is mainly
+ * implemented for completeness and is rather hard to read.
+ */
+int hfs_mac2eight(char *out, const struct hfs_name *in) {
+	unsigned char c;
+	const unsigned char *p = in->Name;
+	int len = in->Len;
+	int count = 0;
+
+	while (len--) {
+		c = *p++;
+		if (!c || (c=='/') || (c=='%')) {
+			*out++ = '%';
+			*out++ = hex[(c>>4) & 0xf];
+			*out++ = hex[c & 0xf];
+			count += 3;
+		} else {
+			*out++ = c;
+			count++;
+		}
+	}
+	return count;
+}
+
+/*
+ * hfs_mac2seven()
+ *
+ * Given a 'Pascal String' (a string preceded by a length byte) in
+ * the Macintosh character set produce the corresponding filename using
+ * the '7-bit ASCII' name-mangling scheme, returning the length of the
+ * mangled filename.  Note that the output string is not NULL
+ * terminated.
+ *
+ * This is one of the three recommended naming conventions described
+ * in Apple's document "AppleSingle/AppleDouble Formats: Developer's
+ * Note (9/94)"
+ *
+ * The name-mangling works as follows:
+ * Characters 0, '%', '/' and 128-255 are replaced by three
+ * characters: '%xx' where xx is the hexadecimal representation of the
+ * character, using lowercase 'a' through 'f'.	All other characters
+ * are passed unchanged from input to output.  Note that control
+ * characters (including newline) and space are unchanged make reading
+ * these filenames difficult.
+ */
+int hfs_mac2seven(char *out, const struct hfs_name *in) {
+	unsigned char c;
+	const unsigned char *p = in->Name;
+	int len = in->Len;
+	int count = 0;
+
+	while (len--) {
+		c = *p++;
+		if (!c || (c=='/') || (c=='%') || (c&0x80)) {
+			*out++ = '%';
+			*out++ = hex[(c>>4) & 0xf];
+			*out++ = hex[c & 0xf];
+			count += 3;
+		} else {
+			*out++ = c;
+			count++;
+		}
+	}
+	return count;
+}
+
+/*
+ * hfs_mac2alpha()
+ *
+ * Given a 'Pascal String' (a string preceded by a length byte) in
+ * the Macintosh character set produce the corresponding filename using
+ * the '7-bit alphanumeric' name-mangling scheme, returning the length
+ * of the mangled filename.  Note that the output string is not NULL
+ * terminated.
+ *
+ * This is one of the three recommended naming conventions described
+ * in Apple's document "AppleSingle/AppleDouble Formats: Developer's
+ * Note (9/94)"
+ *
+ * The name-mangling works as follows:
+ * The characters 'a'-'z', 'A'-'Z', '0'-'9', '_' and the last '.' in
+ * the filename are passed unchanged from input to output.  All
+ * remaining characters (including any '.'s other than the last) are
+ * replaced by three characters: '%xx' where xx is the hexadecimal
+ * representation of the character, using lowercase 'a' through 'f'.
+ */
+int hfs_mac2alpha(char *out, const struct hfs_name *in) {
+	unsigned char c;
+	const unsigned char *p = in->Name;
+	int len = in->Len;
+	int count = 0;
+	const unsigned char *lp;	/* last period */
+
+	/* strrchr() would be good here, but 'in' is not null-terminated */
+	for (lp=p+len-1; (lp>=p)&&(*lp!='.'); --lp) {}
+	++lp;
+
+	while (len--) {
+		c = *p++;
+		if ((p==lp) || ((c>='0')&&(c<='9')) || ((c>='A')&&(c<='Z')) ||
+				((c>='a')&&(c<='z')) || (c=='_')) {
+			*out++ = c;
+			count++;
+		} else {
+			*out++ = '%';
+			*out++ = hex[(c>>4) & 0xf];
+			*out++ = hex[c & 0xf];
+			count += 3;
+		}
+	}
+	return count;
+}
+
+/*
+ * hfs_mac2triv()
+ *
+ * Given a 'Pascal String' (a string preceded by a length byte) in
+ * the Macintosh character set produce the corresponding filename using
+ * the 'trivial' name-mangling scheme, returning the length of the
+ * mangled filename.  Note that the output string is not NULL
+ * terminated.
+ *
+ * The name-mangling works as follows:
+ * The character '/', which is illegal in Linux filenames is replaced
+ * by ':' which never appears in HFS filenames.	 All other characters
+ * are passed unchanged from input to output.
+ */
+int hfs_mac2triv(char *out, const struct hfs_name *in) {
+	unsigned char c;
+	const unsigned char *p = in->Name;
+	int len = in->Len;
+	int count = 0;
+
+	while (len--) {
+		c = *p++;
+		if (c=='/') {
+			*out++ = ':';
+		} else {
+			*out++ = c;
+		}
+		count++;
+	}
+	return count;
+}
+
+/*
+ * hfs_mac2latin()
+ *
+ * Given a 'Pascal String' (a string preceded by a length byte) in
+ * the Macintosh character set produce the corresponding filename using
+ * the 'Latin-1' name-mangling scheme, returning the length of the
+ * mangled filename.  Note that the output string is not NULL
+ * terminated.
+ *
+ * The Macintosh character set and Latin-1 are both extensions of the
+ * ASCII character set.	 Some, but certainly not all, of the characters
+ * in the Macintosh character set are also in Latin-1 but not with the
+ * same encoding.  This name-mangling scheme replaces the characters in
+ * the Macintosh character set that have Latin-1 equivalents by those
+ * equivalents; the characters 32-126, excluding '/' and '%', are
+ * passed unchanged from input to output.  The remaining characters
+ * are replaced by three characters: '%xx' where xx is the hexadecimal
+ * representation of the character, using lowercase 'a' through 'f'.
+ *
+ * The array mac2latin_map[] indicates the correspondence between the
+ * two character sets.	The byte in element x-128 gives the Latin-1
+ * encoding of the character with encoding x in the Macintosh
+ * character set.  A value of zero indicates Latin-1 has no
+ * corresponding character.
+ */
+int hfs_mac2latin(char *out, const struct hfs_name *in) {
+	unsigned char c;
+	const unsigned char *p = in->Name;
+	int len = in->Len;
+	int count = 0;
+
+	while (len--) {
+		c = *p++;
+
+		if ((c & 0x80) && mac2latin_map[c & 0x7f]) {
+			*out++ = mac2latin_map[c & 0x7f];
+			count++;
+		} else if ((c>=32) && (c<=126) && (c!='/') && (c!='%')) {
+			*out++ =  c;
+			count++;
+		} else {
+			*out++ = '%';
+			*out++ = hex[(c>>4) & 0xf];
+			*out++ = hex[c & 0xf];
+			count += 3;
+		}
+	}
+	return count;
+}
+
+/*
+ * hfs_colon2mac()
+ *
+ * Given an ASCII string (not null-terminated) and its length,
+ * generate the corresponding filename in the Macintosh character set
+ * using the 'CAP' name-mangling scheme, returning the length of the
+ * mangled filename.  Note that the output string is not NULL
+ * terminated.
+ *
+ * This routine is a inverse to hfs_mac2cap() and hfs_mac2nat().
+ * A ':' not followed by a 2-digit hexadecimal number (or followed
+ * by the codes for NULL or ':') is replaced by a '|'.
+ */
+void hfs_colon2mac(struct hfs_name *out, const char *in, int len) {
+	int hi, lo;
+	unsigned char code, c, *count;
+	unsigned char *p = out->Name;
+
+	out->Len = 0;
+	count = &out->Len;
+	while (len-- && (*count < HFS_NAMELEN)) {
+		c = *in++;
+		(*count)++;
+		if (c!=':') {
+			*p++ = c;
+		} else if ((len<2) ||
+			   ((hi=dehex(in[0])) & 0xf0) ||
+			   ((lo=dehex(in[1])) & 0xf0) ||
+			   !(code = (hi << 4) | lo) ||
+			   (code == ':')) {
+			*p++ = '|';
+		} else {
+			*p++ = code;
+			len -= 2;
+			in += 2;
+		}
+	}
+}
+
+/*
+ * hfs_prcnt2mac()
+ *
+ * Given an ASCII string (not null-terminated) and its length,
+ * generate the corresponding filename in the Macintosh character set
+ * using Apple's three recommended name-mangling schemes, returning
+ * the length of the mangled filename.	Note that the output string is
+ * not NULL terminated.
+ *
+ * This routine is a inverse to hfs_mac2alpha(), hfs_mac2seven() and
+ * hfs_mac2eight().
+ * A '%' not followed by a 2-digit hexadecimal number (or followed
+ * by the code for NULL or ':') is unchanged.
+ * A ':' is replaced by a '|'.
+ */
+void hfs_prcnt2mac(struct hfs_name *out, const char *in, int len) {
+	int hi, lo;
+	unsigned char code, c, *count;
+	unsigned char *p = out->Name;
+
+	out->Len = 0;
+	count = &out->Len;
+	while (len-- && (*count < HFS_NAMELEN)) {
+		c = *in++;
+		(*count)++;
+		if (c==':') {
+			*p++ = '|';
+		} else if (c!='%') {
+			*p++ = c;
+		} else if ((len<2) ||
+			   ((hi=dehex(in[0])) & 0xf0) ||
+			   ((lo=dehex(in[1])) & 0xf0) ||
+			   !(code = (hi << 4) | lo) ||
+			   (code == ':')) {
+			*p++ = '%';
+		} else {
+			*p++ = code;
+			len -= 2;
+			in += 2;
+		}
+	}
+}
+
+/*
+ * hfs_triv2mac()
+ *
+ * Given an ASCII string (not null-terminated) and its length,
+ * generate the corresponding filename in the Macintosh character set
+ * using the 'trivial' name-mangling scheme, returning the length of
+ * the mangled filename.  Note that the output string is not NULL
+ * terminated.
+ *
+ * This routine is a inverse to hfs_mac2triv().
+ * A ':' is replaced by a '/'.
+ */
+void hfs_triv2mac(struct hfs_name *out, const char *in, int len) {
+	unsigned char c, *count;
+	unsigned char *p = out->Name;
+
+	out->Len = 0;
+	count = &out->Len;
+	while (len-- && (*count < HFS_NAMELEN)) {
+		c = *in++;
+		(*count)++;
+		if (c==':') {
+			*p++ = '/';
+		} else {
+			*p++ = c;
+		}
+	}
+}
+
+/*
+ * hfs_latin2mac()
+ *
+ * Given an Latin-1 string (not null-terminated) and its length,
+ * generate the corresponding filename in the Macintosh character set
+ * using the 'Latin-1' name-mangling scheme, returning the length of
+ * the mangled filename.  Note that the output string is not NULL
+ * terminated.
+ *
+ * This routine is a inverse to hfs_latin2cap().
+ * A '%' not followed by a 2-digit hexadecimal number (or followed
+ * by the code for NULL or ':') is unchanged.
+ * A ':' is replaced by a '|'.
+ *
+ * Note that the character map is built the first time it is needed.
+ */
+void hfs_latin2mac(struct hfs_name *out, const char *in, int len)
+{
+	int hi, lo;
+	unsigned char code, c, *count;
+	unsigned char *p = out->Name;
+	static int map_initialized;
+
+	if (!map_initialized) {
+		int i;
+
+		/* build the inverse mapping at run time */
+		for (i = 0; i < 128; i++) {
+			if ((c = mac2latin_map[i])) {
+				latin2mac_map[(int)c - 128] = i + 128;
+			}
+		}
+		map_initialized = 1;
+	}
+
+	out->Len = 0;
+	count = &out->Len;
+	while (len-- && (*count < HFS_NAMELEN)) {
+		c = *in++;
+		(*count)++;
+
+		if (c==':') {
+			*p++ = '|';
+		} else if (c!='%') {
+			if (c<128 || !(*p = latin2mac_map[c-128])) {
+				*p = c;
+			}
+			p++;
+		} else if ((len<2) ||
+			   ((hi=dehex(in[0])) & 0xf0) ||
+			   ((lo=dehex(in[1])) & 0xf0) ||
+			   !(code = (hi << 4) | lo) ||
+			   (code == ':')) {
+			*p++ = '%';
+		} else {
+			*p++ = code;
+			len -= 2;
+			in += 2;
+		}
+	}
+}
diff --git a/fs/hfs/version.c b/fs/hfs/version.c
new file mode 100644
index 00000000000000..ef0283ec0b6b16
--- /dev/null
+++ b/fs/hfs/version.c
@@ -0,0 +1,10 @@
+/*
+ * linux/fs/hfs/version.c
+ *
+ * Copyright (C) 1995-1997  Paul H. Hargrove
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * This file contains the version string for this release.
+ */
+
+const char hfs_version[]="0.96";
diff --git a/fs/hfsplus/Makefile b/fs/hfsplus/Makefile
new file mode 100644
index 00000000000000..2b23d1cec4c50e
--- /dev/null
+++ b/fs/hfsplus/Makefile
@@ -0,0 +1,17 @@
+#
+# Makefile for the linux hfsplus filesystem routines.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile...
+
+O_TARGET :=	hfsplus.o
+
+obj-y    :=	super.o options.o inode.o extents.o catalog.o dir.o btree.o \
+		bnode.o brec.o bfind.o tables.o unicode.o wrapper.o
+
+obj-m	 :=	$(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/hfsplus/README b/fs/hfsplus/README
new file mode 100644
index 00000000000000..f6e02fba45b619
--- /dev/null
+++ b/fs/hfsplus/README
@@ -0,0 +1,33 @@
+    Copyright (C) 2001 Brad Boyer
+    Copyright (C) 2003 Ardis Technologies bv
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+
+HFS+ is the standard volume format for Mac OS X.
+
+A basic overview and also a detailed description of the HFS+ volume format
+is provided by Apple's technical note 1150.
+
+The new driver provides full access to HFS+ plus volumes under Linux. It
+bases on the driver by Brad Boyer at 
+http://sourceforge.net/projects/linux-hfsplus.
+
+This driver now supports full read and write access and has a better
+perfomance. It also supports hard links and the resource fork is accessible
+via /rsrc.
+
+This is a beta release, it was intensively tested, but use at your own risk.
+
diff --git a/fs/hfsplus/bfind.c b/fs/hfsplus/bfind.c
new file mode 100644
index 00000000000000..6dcceec90e5cc2
--- /dev/null
+++ b/fs/hfsplus/bfind.c
@@ -0,0 +1,213 @@
+/*
+ *  linux/fs/hfsplus/bfind.c
+ *
+ * Copyright (C) 2001
+ * Brad Boyer (flar@allandria.com)
+ * (C) 2003 Ardis Technologies <roman@ardistech.com>
+ *
+ * Search routines for btrees
+ */
+
+#include <linux/slab.h>
+#include "hfsplus_fs.h"
+
+/* Find the record in bnode that best matches key (not greater than...)*/
+void hfsplus_find_rec(hfsplus_bnode *bnode, struct hfsplus_find_data *fd)
+{
+	int cmpval;
+	u16 off, len, keylen;
+	int rec;
+	int b, e;
+
+	b = 0;
+	e = bnode->num_recs - 1;
+	do {
+		rec = (e + b) / 2;
+		len = hfsplus_brec_lenoff(bnode, rec, &off);
+		keylen = hfsplus_brec_keylen(bnode, rec);
+		hfsplus_bnode_readbytes(bnode, fd->key, off, keylen);
+		cmpval = bnode->tree->keycmp(fd->key, fd->search_key);
+		if (!cmpval) {
+			fd->exact = 1;
+			e = rec;
+			break;
+		}
+		if (cmpval < 0)
+			b = rec + 1;
+		else
+			e = rec - 1;
+	} while (b <= e);
+	//printk("%d: %d,%d,%d\n", bnode->this, b, e, rec);
+	if (rec != e && e >= 0) {
+		len = hfsplus_brec_lenoff(bnode, e, &off);
+		keylen = hfsplus_brec_keylen(bnode, e);
+		hfsplus_bnode_readbytes(bnode, fd->key, off, keylen);
+	}
+	fd->record = e;
+	fd->keyoffset = off;
+	fd->keylength = keylen;
+	fd->entryoffset = off + keylen;
+	fd->entrylength = len - keylen;
+}
+
+/* Traverse a B*Tree from the root to a leaf finding best fit to key */
+/* Return allocated copy of node found, set recnum to best record */
+int hfsplus_btree_find(struct hfsplus_find_data *fd)
+{
+	hfsplus_btree *tree;
+	hfsplus_bnode *bnode;
+	u32 data, nidx, parent;
+	int height, err;
+
+	tree = fd->tree;
+	if (fd->bnode)
+		hfsplus_put_bnode(fd->bnode);
+	fd->bnode = NULL;
+	fd->exact = 0;
+	nidx = tree->root;
+	if (!nidx)
+		return -ENOENT;
+	height = tree->depth;
+	err = 0;
+	parent = 0;
+	for (;;) {
+		bnode = hfsplus_find_bnode(tree, nidx);
+		if (!bnode) {
+			err = -EIO;
+			break;
+		}
+		if (bnode->height != height)
+			goto invalid;
+		if (bnode->kind != (--height ? HFSPLUS_NODE_NDX : HFSPLUS_NODE_LEAF))
+			goto invalid;
+		bnode->parent = parent;
+
+		hfsplus_find_rec(bnode, fd);
+		if (fd->record < 0) {
+			err = -ENOENT;
+			goto release;
+		}
+		if (!height) {
+			if (!fd->exact)
+				err = -ENOENT;
+			break;
+		}
+
+		parent = nidx;
+		hfsplus_bnode_readbytes(bnode, &data, fd->entryoffset, 4);
+		nidx = be32_to_cpu(data);
+		hfsplus_put_bnode(bnode);
+	}
+	fd->bnode = bnode;
+	return err;
+
+invalid:
+	printk("HFS+-fs: inconsistency in B*Tree\n");
+	err = -EIO;
+release:
+	hfsplus_put_bnode(bnode);
+	return err;
+}
+
+int hfsplus_btree_find_entry(struct hfsplus_find_data *fd,
+			     void *entry, int entry_len)
+{
+	int res;
+
+	res = hfsplus_btree_find(fd);
+	if (res)
+		return res;
+	if (fd->entrylength > entry_len)
+		return -EINVAL;
+	hfsplus_bnode_readbytes(fd->bnode, entry, fd->entryoffset, fd->entrylength);
+	return 0;
+}
+
+int hfsplus_btree_move(struct hfsplus_find_data *fd, int cnt)
+{
+	struct hfsplus_btree *tree;
+	hfsplus_bnode *bnode;
+	int idx, res = 0;
+	u16 off, len, keylen;
+
+	bnode = fd->bnode;
+	tree = bnode->tree;
+
+	if (cnt < -0xFFFF || cnt > 0xFFFF)
+		return -EINVAL;
+
+	if (cnt < 0) {
+		cnt = -cnt;
+		while (cnt > fd->record) {
+			cnt -= fd->record + 1;
+			fd->record = bnode->num_recs - 1;
+			idx = bnode->prev;
+			if (!idx) {
+				res = -ENOENT;
+				goto out;
+			}
+			hfsplus_put_bnode(bnode);
+			bnode = hfsplus_find_bnode(tree, idx);
+			if (!bnode) {
+				res = -EIO;
+				goto out;
+			}
+		}
+		fd->record -= cnt;
+	} else {
+		while (cnt >= bnode->num_recs - fd->record) {
+			cnt -= bnode->num_recs - fd->record;
+			fd->record = 0;
+			idx = bnode->next;
+			if (!idx) {
+				res = -ENOENT;
+				goto out;
+			}
+			hfsplus_put_bnode(bnode);
+			bnode = hfsplus_find_bnode(tree, idx);
+			if (!bnode) {
+				res = -EIO;
+				goto out;
+			}
+		}
+		fd->record += cnt;
+	}
+
+	len = hfsplus_brec_lenoff(bnode, fd->record, &off);
+	keylen = hfsplus_brec_keylen(bnode, fd->record);
+	fd->keyoffset = off;
+	fd->keylength = keylen;
+	fd->entryoffset = off + keylen;
+	fd->entrylength = len - keylen;
+	hfsplus_bnode_readbytes(bnode, fd->key, off, keylen);
+out:
+	fd->bnode = bnode;
+	return res;
+}
+
+int hfsplus_find_init(hfsplus_btree *tree, struct hfsplus_find_data *fd)
+{
+	fd->tree = tree;
+	fd->bnode = NULL;
+	fd->search_key = kmalloc(tree->max_key_len + 2, GFP_KERNEL);
+	if (!fd->search_key)
+		return -ENOMEM;
+	fd->key = kmalloc(tree->max_key_len + 2, GFP_KERNEL);
+	if (!fd->key) {
+		kfree(fd->search_key);
+		return -ENOMEM;
+	}
+	dprint(DBG_BNODE_REFS, "find_init: %d (%p)\n", tree->cnid, __builtin_return_address(0));
+	down(&tree->tree_lock);
+	return 0;
+}
+
+void hfsplus_find_exit(struct hfsplus_find_data *fd)
+{
+	hfsplus_put_bnode(fd->bnode);
+	kfree(fd->search_key);
+	kfree(fd->key);
+	dprint(DBG_BNODE_REFS, "find_exit: %d (%p)\n", fd->tree->cnid, __builtin_return_address(0));
+	up(&fd->tree->tree_lock);
+	fd->tree = NULL;
+}
diff --git a/fs/hfsplus/bnode.c b/fs/hfsplus/bnode.c
new file mode 100644
index 00000000000000..12a77afb57a24b
--- /dev/null
+++ b/fs/hfsplus/bnode.c
@@ -0,0 +1,1031 @@
+/*
+ *  linux/fs/hfsplus/bnode.c
+ *
+ * Copyright (C) 2001
+ * Brad Boyer (flar@allandria.com)
+ * (C) 2003 Ardis Technologies <roman@ardistech.com>
+ *
+ * Handle basic btree node operations
+ */
+
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/pagemap.h>
+#include <linux/fs.h>
+#include <linux/swap.h>
+#include <linux/version.h>
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
+#include <linux/buffer_head.h>
+#endif
+
+#include "hfsplus_fs.h"
+#include "hfsplus_raw.h"
+
+#define REF_PAGES	0
+
+int hfsplus_update_idx_rec(struct hfsplus_find_data *fd);
+
+/* Get the given block associated with the tree owning node */
+struct buffer_head *hfsplus_getblk(struct inode *inode, unsigned long n)
+{
+	struct super_block *sb;
+	struct buffer_head tmp_bh;
+
+	sb = inode->i_sb;
+	if (hfsplus_get_block(inode, n, &tmp_bh, 1)) {
+		printk("HFS+-fs: Failed to find block for B*Tree data\n");
+		return NULL;
+	}
+	return sb_bread(sb, tmp_bh.b_blocknr);
+}
+
+/* Copy a specified range of bytes from the raw data of a node */
+void hfsplus_bnode_readbytes(hfsplus_bnode *node, void *buf,
+			     unsigned long off, unsigned long len)
+{
+	unsigned long l;
+	struct page **pagep;
+
+	off += node->page_offset;
+	pagep = node->page + (off >> PAGE_CACHE_SHIFT);
+	off &= ~PAGE_CACHE_MASK;
+
+	l = min(len, PAGE_CACHE_SIZE - off);
+	memcpy(buf, hfsplus_kmap(*pagep) + off, l);
+	hfsplus_kunmap(*pagep++);
+
+	while ((len -= l)) {
+		buf += l;
+		l = min(len, PAGE_CACHE_SIZE);
+		memcpy(buf, hfsplus_kmap(*pagep), l);
+		hfsplus_kunmap(*pagep++);
+	}
+}
+
+u16 hfsplus_bnode_read_u16(hfsplus_bnode *node, unsigned long off)
+{
+	u16 data;
+	// optimize later...
+	hfsplus_bnode_readbytes(node, &data, off, 2);
+	return be16_to_cpu(data);
+}
+
+void hfsplus_bnode_read_key(hfsplus_bnode *node, void *key, unsigned long off)
+{
+	hfsplus_btree *tree;
+	unsigned long key_len;
+
+	tree = node->tree;
+	if (node->kind == HFSPLUS_NODE_LEAF ||
+	    tree->attributes & HFSPLUS_TREE_VAR_NDXKEY_SIZE)
+		key_len = hfsplus_bnode_read_u16(node, off) + 2;
+	else
+		key_len = tree->max_key_len + 2;
+	
+	hfsplus_bnode_readbytes(node, key, off, key_len);	
+}
+
+void hfsplus_bnode_writebytes(hfsplus_bnode *node, void *buf,
+			      unsigned long off, unsigned long len)
+{
+	unsigned long l;
+	struct page **pagep;
+
+	off += node->page_offset;
+	pagep = node->page + (off >> PAGE_CACHE_SHIFT);
+	off &= ~PAGE_CACHE_MASK;
+
+	l = min(len, PAGE_CACHE_SIZE - off);
+	memcpy(hfsplus_kmap(*pagep) + off, buf, l);
+	set_page_dirty(*pagep);
+	hfsplus_kunmap(*pagep++);
+
+	while ((len -= l)) {
+		buf += l;
+		l = min(len, PAGE_CACHE_SIZE);
+		memcpy(hfsplus_kmap(*pagep), buf, l);
+		set_page_dirty(*pagep);
+		hfsplus_kunmap(*pagep++);
+	}
+}
+
+void hfsplus_bnode_write_u16(hfsplus_bnode *node, unsigned long off, u16 data)
+{
+	data = cpu_to_be16(data);
+	// optimize later...
+	hfsplus_bnode_writebytes(node, &data, off, 2);
+}
+
+void hfsplus_bnode_copybytes(hfsplus_bnode *dst_node, unsigned long dst,
+			     hfsplus_bnode *src_node, unsigned long src, unsigned long len)
+{
+	struct hfsplus_btree *tree;
+	struct page **src_page, **dst_page;
+	unsigned long l;
+
+	dprint(DBG_BNODE_MOD, "copybytes: %lu,%lu,%lu\n", dst, src, len);
+	if (!len)
+		return;
+	tree = src_node->tree;
+	src += src_node->page_offset;
+	dst += dst_node->page_offset;
+	src_page = src_node->page + (src >> PAGE_CACHE_SHIFT);
+	src &= ~PAGE_CACHE_MASK;
+	dst_page = dst_node->page + (dst >> PAGE_CACHE_SHIFT);
+	dst &= ~PAGE_CACHE_MASK;
+
+	if (src == dst) {
+		l = min(len, PAGE_CACHE_SIZE - src);
+		memcpy(hfsplus_kmap(*dst_page) + src, hfsplus_kmap(*src_page) + src, l);
+		hfsplus_kunmap(*src_page++);
+		set_page_dirty(*dst_page);
+		hfsplus_kunmap(*dst_page++);
+
+		while ((len -= l)) {
+			l = min(len, PAGE_CACHE_SIZE);
+			memcpy(hfsplus_kmap(*dst_page), hfsplus_kmap(*src_page), l);
+			hfsplus_kunmap(*src_page++);
+			set_page_dirty(*dst_page);
+			hfsplus_kunmap(*dst_page++);
+		}
+	} else {
+		void *src_ptr, *dst_ptr;
+
+		do {
+			src_ptr = hfsplus_kmap(*src_page) + src;
+			dst_ptr = hfsplus_kmap(*dst_page) + dst;
+			if (PAGE_CACHE_SIZE - src < PAGE_CACHE_SIZE - dst) {
+				l = PAGE_CACHE_SIZE - src;
+				src = 0;
+				dst += l;
+			} else {
+				l = PAGE_CACHE_SIZE - dst;
+				src += l;
+				dst = 0;
+			}
+			l = min(len, l);
+			memcpy(dst_ptr, src_ptr, l);
+			hfsplus_kunmap(*src_page);
+			set_page_dirty(*dst_page);
+			hfsplus_kunmap(*dst_page);
+			if (!dst)
+				dst_page++;
+			else
+				src_page++;
+		} while ((len -= l));
+	}
+}
+
+void hfsplus_bnode_movebytes(hfsplus_bnode *node, unsigned long dst,
+			     unsigned long src, unsigned long len)
+{
+	struct page **src_page, **dst_page;
+	unsigned long l;
+
+	dprint(DBG_BNODE_MOD, "movebytes: %lu,%lu,%lu\n", dst, src, len);
+	if (!len)
+		return;
+	src += node->page_offset;
+	dst += node->page_offset;
+	if (dst > src) {
+		src += len - 1;
+		src_page = node->page + (src >> PAGE_CACHE_SHIFT);
+		src = (src & ~PAGE_CACHE_MASK) + 1;
+		dst += len - 1;
+		dst_page = node->page + (dst >> PAGE_CACHE_SHIFT);
+		dst = (dst & ~PAGE_CACHE_MASK) + 1;
+
+		if (src == dst) {
+			while (src < len) {
+				memmove(hfsplus_kmap(*dst_page), hfsplus_kmap(*src_page), src);
+				hfsplus_kunmap(*src_page--);
+				set_page_dirty(*dst_page);
+				hfsplus_kunmap(*dst_page--);
+				len -= src;
+				src = PAGE_CACHE_SIZE;
+			}
+			src -= len;
+			memmove(hfsplus_kmap(*dst_page) + src, hfsplus_kmap(*src_page) + src, len);
+			hfsplus_kunmap(*src_page);
+			set_page_dirty(*dst_page);
+			hfsplus_kunmap(*dst_page);
+		} else {
+			void *src_ptr, *dst_ptr;
+
+			do {
+				src_ptr = hfsplus_kmap(*src_page) + src;
+				dst_ptr = hfsplus_kmap(*dst_page) + dst;
+				if (src < dst) {
+					l = src;
+					src = PAGE_CACHE_SIZE;
+					dst -= l;
+				} else {
+					l = dst;
+					src -= l;
+					dst = PAGE_CACHE_SIZE;
+				}
+				l = min(len, l);
+				memmove(dst_ptr - l, src_ptr - l, l);
+				hfsplus_kunmap(*src_page);
+				set_page_dirty(*dst_page);
+				hfsplus_kunmap(*dst_page);
+				if (dst == PAGE_CACHE_SIZE)
+					dst_page--;
+				else
+					src_page--;
+			} while ((len -= l));
+		}
+	} else {
+		src_page = node->page + (src >> PAGE_CACHE_SHIFT);
+		src &= ~PAGE_CACHE_MASK;
+		dst_page = node->page + (dst >> PAGE_CACHE_SHIFT);
+		dst &= ~PAGE_CACHE_MASK;
+
+		if (src == dst) {
+			l = min(len, PAGE_CACHE_SIZE - src);
+			memmove(hfsplus_kmap(*dst_page) + src, hfsplus_kmap(*src_page) + src, l);
+			hfsplus_kunmap(*src_page++);
+			set_page_dirty(*dst_page);
+			hfsplus_kunmap(*dst_page++);
+
+			while ((len -= l)) {
+				l = min(len, PAGE_CACHE_SIZE);
+				memmove(hfsplus_kmap(*dst_page), hfsplus_kmap(*src_page), l);
+				hfsplus_kunmap(*src_page++);
+				set_page_dirty(*dst_page);
+				hfsplus_kunmap(*dst_page++);
+			}
+		} else {
+			void *src_ptr, *dst_ptr;
+
+			do {
+				src_ptr = hfsplus_kmap(*src_page) + src;
+				dst_ptr = hfsplus_kmap(*dst_page) + dst;
+				if (PAGE_CACHE_SIZE - src < PAGE_CACHE_SIZE - dst) {
+					l = PAGE_CACHE_SIZE - src;
+					src = 0;
+					dst += l;
+				} else {
+					l = PAGE_CACHE_SIZE - dst;
+					src += l;
+					dst = 0;
+				}
+				l = min(len, l);
+				memmove(dst_ptr, src_ptr, l);
+				hfsplus_kunmap(*src_page);
+				set_page_dirty(*dst_page);
+				hfsplus_kunmap(*dst_page);
+				if (!dst)
+					dst_page++;
+				else
+					src_page++;
+			} while ((len -= l));
+		}
+	}
+}
+
+void hfsplus_bnode_dump(hfsplus_bnode *node)
+{
+	hfsplus_btree_node_desc desc;
+	u32 cnid;
+	int i, off, key_off;
+
+	dprint(DBG_BNODE_MOD, "bnode: %d\n", node->this);
+	hfsplus_bnode_readbytes(node, &desc, 0, sizeof(desc));
+	dprint(DBG_BNODE_MOD, "%d, %d, %d, %d, %d\n",
+		be32_to_cpu(desc.next), be32_to_cpu(desc.prev),
+		desc.kind, desc.height, be16_to_cpu(desc.num_rec));
+
+	off = node->tree->node_size - 2;
+	for (i = be16_to_cpu(desc.num_rec); i >= 0; off -= 2, i--) {
+		key_off = hfsplus_bnode_read_u16(node, off);
+		dprint(DBG_BNODE_MOD, " %d", key_off);
+		if (i && node->kind == HFSPLUS_NODE_NDX) {
+			int tmp;
+
+			tmp = hfsplus_bnode_read_u16(node, key_off);
+			dprint(DBG_BNODE_MOD, " (%d", tmp);
+			hfsplus_bnode_readbytes(node, &cnid, key_off + 2 + tmp, 4);
+			dprint(DBG_BNODE_MOD, ",%d)", be32_to_cpu(cnid));
+		}
+	}
+	dprint(DBG_BNODE_MOD, "\n");
+}
+
+int hfsplus_btree_add_level(hfsplus_btree *tree)
+{
+	hfsplus_bnode *node, *new_node;
+	hfsplus_btree_node_desc node_desc;
+	int key_size, rec;
+	u32 cnid;
+
+	node = NULL;
+	if (tree->root)
+		node = hfsplus_find_bnode(tree, tree->root);
+	new_node = hfsplus_btree_alloc_node(tree);
+	if (IS_ERR(new_node))
+		return PTR_ERR(new_node);
+
+	tree->root = new_node->this;
+	if (!tree->depth) {
+		tree->leaf_head = tree->leaf_tail = new_node->this;
+		new_node->kind = HFSPLUS_NODE_LEAF;
+		new_node->num_recs = 0;
+	} else {
+		new_node->kind = HFSPLUS_NODE_NDX;
+		new_node->num_recs = 1;
+	}
+	new_node->parent = 0;
+	new_node->next = 0;
+	new_node->prev = 0;
+	new_node->height = ++tree->depth;
+
+	node_desc.next = cpu_to_be32(new_node->next);
+	node_desc.prev = cpu_to_be32(new_node->prev);
+	node_desc.kind = new_node->kind;
+	node_desc.height = new_node->height;
+	node_desc.num_rec = cpu_to_be16(new_node->num_recs);
+	node_desc.reserved = 0;
+	hfsplus_bnode_writebytes(new_node, &node_desc, 0, sizeof(node_desc));
+
+	rec = tree->node_size - 2;
+	hfsplus_bnode_write_u16(new_node, rec, 14);
+
+	if (node) {
+		/* insert old root idx into new root */
+		node->parent = tree->root;
+		key_size = hfsplus_bnode_read_u16(node, 14) + 2;
+		// key_size if index node
+		hfsplus_bnode_copybytes(new_node, 14, node, 14, key_size);
+		cnid = cpu_to_be32(node->this);
+		hfsplus_bnode_writebytes(new_node, &cnid, 14 + key_size, 4);
+
+		rec -= 2;
+		hfsplus_bnode_write_u16(new_node, rec, 14 + key_size + 4);
+
+		hfsplus_put_bnode(node);
+	}
+	hfsplus_put_bnode(new_node);
+	mark_inode_dirty(tree->inode);
+
+	return 0;
+}
+
+hfsplus_bnode *hfsplus_bnode_split(struct hfsplus_find_data *fd)
+{
+	hfsplus_btree *tree;
+	hfsplus_bnode *node, *new_node;
+	hfsplus_btree_node_desc node_desc;
+	int num_recs, new_rec_off, new_off, old_rec_off;
+	int data_start, data_end, size;
+
+	tree = fd->tree;
+	node = fd->bnode;
+	new_node = hfsplus_btree_alloc_node(tree);
+	if (IS_ERR(new_node))
+		return new_node;
+	hfsplus_get_bnode(node);
+	dprint(DBG_BNODE_MOD, "split_nodes: %d - %d - %d\n",
+		node->this, new_node->this, node->next);
+	new_node->next = node->next;
+	new_node->prev = node->this;
+	new_node->parent = node->parent;
+	new_node->kind = node->kind;
+	new_node->height = node->height;
+
+	size = tree->node_size / 2;
+	old_rec_off = tree->node_size - 4;
+	num_recs = 1;
+	for (;;) {
+		data_start = hfsplus_bnode_read_u16(node, old_rec_off);
+		if (data_start > size)
+			break;
+		old_rec_off -= 2;
+		num_recs++;
+		if (num_recs < node->num_recs)
+			continue;
+		/* panic? */
+		hfsplus_put_bnode(node);
+		hfsplus_put_bnode(new_node);
+		return NULL;
+	}
+
+	if (fd->record + 1 < num_recs) {
+		/* new record is in the lower half,
+		 * so leave some more space there
+		 */
+		old_rec_off += 2;
+		num_recs--;
+		data_start = hfsplus_bnode_read_u16(node, old_rec_off);
+	} else {
+		hfsplus_put_bnode(node);
+		hfsplus_get_bnode(new_node);
+		fd->bnode = new_node;
+		fd->record -= num_recs;
+		fd->keyoffset -= data_start;
+		fd->entryoffset -= data_start;
+	}
+	new_node->num_recs = node->num_recs - num_recs;
+	node->num_recs = num_recs;
+
+	new_rec_off = tree->node_size - 2;
+	new_off = 14;
+	size = data_start - new_off;
+	num_recs = new_node->num_recs;
+	data_end = data_start;
+	while (num_recs) {
+		hfsplus_bnode_write_u16(new_node, new_rec_off, new_off);
+		old_rec_off -= 2;
+		new_rec_off -= 2;
+		data_end = hfsplus_bnode_read_u16(node, old_rec_off);
+		new_off = data_end - size;
+		num_recs--;
+	}
+	hfsplus_bnode_write_u16(new_node, new_rec_off, new_off);
+	hfsplus_bnode_copybytes(new_node, 14, node, data_start, data_end - data_start);
+
+	/* update new bnode header */
+	node_desc.next = cpu_to_be32(new_node->next);
+	node_desc.prev = cpu_to_be32(new_node->prev);
+	node_desc.kind = new_node->kind;
+	node_desc.height = new_node->height;
+	node_desc.num_rec = cpu_to_be16(new_node->num_recs);
+	node_desc.reserved = 0;
+	hfsplus_bnode_writebytes(new_node, &node_desc, 0, sizeof(node_desc));
+
+	/* update previous bnode header */
+	node->next = new_node->this;
+	hfsplus_bnode_readbytes(node, &node_desc, 0, sizeof(node_desc));
+	node_desc.next = cpu_to_be32(node->next);
+	node_desc.num_rec = cpu_to_be16(node->num_recs);
+	hfsplus_bnode_writebytes(node, &node_desc, 0, sizeof(node_desc));
+
+	/* update next bnode header */
+	if (new_node->next) {
+		hfsplus_bnode *next_node = hfsplus_find_bnode(tree, new_node->next);
+		next_node->prev = new_node->this;
+		hfsplus_bnode_readbytes(next_node, &node_desc, 0, sizeof(node_desc));
+		node_desc.prev = cpu_to_be32(next_node->prev);
+		hfsplus_bnode_writebytes(next_node, &node_desc, 0, sizeof(node_desc));
+		hfsplus_put_bnode(next_node);
+	} else if (node->this == tree->leaf_tail) {
+		/* if there is no next node, this might be the new tail */
+		tree->leaf_tail = new_node->this;
+		mark_inode_dirty(tree->inode);
+	}
+
+	hfsplus_bnode_dump(node);
+	hfsplus_bnode_dump(new_node);
+	hfsplus_put_bnode(node);
+
+	return new_node;
+}
+
+int hfsplus_bnode_insert_rec(struct hfsplus_find_data *fd, void *entry, int entry_len)
+{
+	hfsplus_btree *tree;
+	hfsplus_bnode *node, *new_node;
+	int size, key_len, rec;
+	int data_off, end_off;
+	int idx_rec_off, data_rec_off, end_rec_off;
+	u32 cnid;
+
+	tree = fd->tree;
+	if (!fd->bnode) {
+		if (!tree->root)
+			hfsplus_btree_add_level(tree);
+		fd->bnode = hfsplus_find_bnode(tree, tree->leaf_head);
+		fd->record = -1;
+	}
+	new_node = NULL;
+again:
+	/* new record idx and complete record size */
+	rec = fd->record + 1;
+	key_len = be16_to_cpu(fd->search_key->key_len) + 2;
+	size = key_len + entry_len;
+
+	node = fd->bnode;
+	hfsplus_bnode_dump(node);
+	/* get last offset */
+	end_rec_off = tree->node_size - (node->num_recs + 1) * 2;
+	end_off = hfsplus_bnode_read_u16(node, end_rec_off);
+	end_rec_off -= 2;
+	dprint(DBG_BNODE_MOD, "insert_rec: %d, %d, %d, %d\n", rec, size, end_off, end_rec_off);
+	if (size > end_rec_off - end_off) {
+		if (new_node)
+			panic("not enough room!\n");
+		new_node = hfsplus_bnode_split(fd);
+		if (IS_ERR(new_node))
+			return PTR_ERR(new_node);
+		goto again;
+	}
+	if (node->kind == HFSPLUS_NODE_LEAF) {
+		tree->leaf_count++;
+		mark_inode_dirty(tree->inode);
+	}
+	node->num_recs++;
+	/* write new last offset */
+	hfsplus_bnode_write_u16(node, offsetof(hfsplus_btree_node_desc, num_rec), node->num_recs);
+	hfsplus_bnode_write_u16(node, end_rec_off, end_off + size);
+	data_off = end_off;
+	data_rec_off = end_rec_off + 2;
+	idx_rec_off = tree->node_size - (rec + 1) * 2;
+	if (idx_rec_off == data_rec_off)
+		goto skip;
+	/* move all following entries */
+	do {
+		data_off = hfsplus_bnode_read_u16(node, data_rec_off + 2);
+		hfsplus_bnode_write_u16(node, data_rec_off, data_off + size);
+		data_rec_off += 2;
+	} while (data_rec_off < idx_rec_off);
+
+	/* move data away */
+	hfsplus_bnode_movebytes(node, data_off + size, data_off,
+				end_off - data_off);
+
+skip:
+	hfsplus_bnode_writebytes(node, fd->search_key, data_off, key_len);
+	hfsplus_bnode_writebytes(node, entry, data_off + key_len, entry_len);
+	hfsplus_bnode_dump(node);
+
+	if (new_node) {
+		if (!rec && new_node != node)
+			hfsplus_update_idx_rec(fd);
+
+		hfsplus_put_bnode(fd->bnode);
+		if (!new_node->parent) {
+			hfsplus_btree_add_level(tree);
+			new_node->parent = tree->root;
+		}
+		fd->bnode = hfsplus_find_bnode(tree, new_node->parent);
+
+		/* create index data entry */
+		cnid = cpu_to_be32(new_node->this);
+		entry = &cnid;
+		entry_len = sizeof(cnid);
+
+		/* get index key */
+		hfsplus_bnode_read_key(new_node, fd->search_key, 14);
+		hfsplus_find_rec(fd->bnode, fd);
+
+		hfsplus_put_bnode(new_node);
+		new_node = NULL;
+		goto again;
+	}
+
+	if (!rec)
+		hfsplus_update_idx_rec(fd);
+
+	return 0;
+}
+
+int hfsplus_update_idx_rec(struct hfsplus_find_data *fd)
+{
+	hfsplus_btree *tree;
+	hfsplus_bnode *node, *new_node, *parent;
+	int newkeylen, diff;
+	int rec, rec_off, end_rec_off;
+	int start_off, end_off;
+
+	tree = fd->tree;
+	node = fd->bnode;
+	new_node = NULL;
+	if (!node->parent)
+		return 0;
+
+again:
+	parent = hfsplus_find_bnode(tree, node->parent);
+	hfsplus_find_rec(parent, fd);
+	hfsplus_bnode_dump(parent);
+	rec = fd->record;
+
+	/* size difference between old and new key */
+	newkeylen = hfsplus_bnode_read_u16(node, 14) + 2;
+	dprint(DBG_BNODE_MOD, "update_rec: %d, %d, %d\n", rec, fd->keylength, newkeylen);
+
+	rec_off = tree->node_size - (rec + 2) * 2;
+	end_rec_off = tree->node_size - (parent->num_recs + 1) * 2;
+	diff = newkeylen - fd->keylength;
+	if (!diff)
+		goto skip;
+	if (diff > 0) {
+		end_off = hfsplus_bnode_read_u16(parent, end_rec_off);
+		if (end_rec_off - end_off < diff) {
+
+			printk("splitting index node...\n");
+			fd->bnode = parent;
+			new_node = hfsplus_bnode_split(fd);
+			if (IS_ERR(new_node))
+				return PTR_ERR(new_node);
+			parent = fd->bnode;
+			rec = fd->record;
+			rec_off = tree->node_size - (rec + 2) * 2;
+			end_rec_off = tree->node_size - (parent->num_recs + 1) * 2;
+		}
+	}
+
+	end_off = start_off = hfsplus_bnode_read_u16(parent, rec_off);
+	hfsplus_bnode_write_u16(parent, rec_off, start_off + diff);
+	start_off -= 4;	/* move previous cnid too */
+
+	while (rec_off > end_rec_off) {
+		rec_off -= 2;
+		end_off = hfsplus_bnode_read_u16(parent, rec_off);
+		hfsplus_bnode_write_u16(parent, rec_off, end_off + diff);
+	}
+	hfsplus_bnode_movebytes(parent, start_off + diff, start_off,
+				end_off - start_off);
+skip:
+	hfsplus_bnode_copybytes(parent, fd->keyoffset, node, 14, newkeylen);
+	hfsplus_bnode_dump(parent);
+
+	hfsplus_put_bnode(node);
+	node = parent;
+
+	if (new_node) {
+		u32 cnid;
+
+		fd->bnode = hfsplus_find_bnode(tree, new_node->parent);
+		/* create index key and entry */
+		hfsplus_bnode_read_key(new_node, fd->search_key, 14);
+		cnid = cpu_to_be32(new_node->this);
+
+		hfsplus_find_rec(fd->bnode, fd);
+		hfsplus_bnode_insert_rec(fd, &cnid, sizeof(cnid));
+		hfsplus_put_bnode(fd->bnode);
+		hfsplus_put_bnode(new_node);
+
+		if (!rec) {
+			if (new_node == node)
+				goto out;
+			/* restore search_key */
+			hfsplus_bnode_read_key(node, fd->search_key, 14);
+		}
+	}
+
+	if (!rec && node->parent)
+		goto again;
+out:
+	fd->bnode = node;
+	return 0;
+}
+
+int hfsplus_bnode_remove_rec(struct hfsplus_find_data *fd)
+{
+	hfsplus_btree *tree;
+	hfsplus_bnode *node, *parent;
+	int end_off, rec_off, data_off, size;
+
+	tree = fd->tree;
+	node = fd->bnode;
+again:
+	rec_off = tree->node_size - (fd->record + 2) * 2;
+	end_off = tree->node_size - (node->num_recs + 1) * 2;
+
+	if (node->kind == HFSPLUS_NODE_LEAF) {
+		tree->leaf_count--;
+		mark_inode_dirty(tree->inode);
+	}
+	hfsplus_bnode_dump(node);
+	dprint(DBG_BNODE_MOD, "remove_rec: %d, %d\n", fd->record, fd->keylength + fd->entrylength);
+	if (!--node->num_recs) {
+		hfsplus_btree_remove_node(node);
+		if (!node->parent)
+			return 0;
+		parent = hfsplus_find_bnode(tree, node->parent);
+		if (!parent)
+			return -EIO;
+		hfsplus_put_bnode(node);
+		node = fd->bnode = parent;
+
+		hfsplus_find_rec(node, fd);
+		goto again;
+	}
+	hfsplus_bnode_write_u16(node, offsetof(hfsplus_btree_node_desc, num_rec), node->num_recs);
+
+	if (rec_off == end_off)
+		goto skip;
+	size = fd->keylength + fd->entrylength;
+
+	do {
+		data_off = hfsplus_bnode_read_u16(node, rec_off);
+		hfsplus_bnode_write_u16(node, rec_off + 2, data_off - size);
+		rec_off -= 2;
+	} while (rec_off >= end_off);
+
+	/* fill hole */
+	hfsplus_bnode_movebytes(node, fd->keyoffset, fd->keyoffset + size,
+				data_off - fd->keyoffset - size);
+skip:
+	hfsplus_bnode_dump(node);
+	if (!fd->record)
+		hfsplus_update_idx_rec(fd);
+	return 0;
+}
+
+/* Check for valid kind/height pairs , return 0 for bad pairings */
+static int hfsplus_check_kh(hfsplus_btree *tree, u8 kind, u8 height)
+{
+	if ((kind == HFSPLUS_NODE_HEAD) || (kind == HFSPLUS_NODE_MAP)) {
+		if (height != 0)
+			goto hk_error;
+	} else if (kind == HFSPLUS_NODE_LEAF) {
+		if (height != 1)
+			goto hk_error;
+	} else if (kind == HFSPLUS_NODE_NDX) {
+		if ((height <= 1) || (height > tree->depth))
+			goto hk_error;
+	} else {
+		printk("HFS+-fs: unknown node type in B*Tree\n");
+		return 0;
+	}
+	return 1;
+ hk_error:
+	printk("HFS+-fs: corrupt node height in B*Tree\n");
+	return 0;
+}
+
+static inline int hfsplus_bnode_hash(u32 num)
+{
+	num = (num >> 16) + num;
+	num += num >> 8;
+	return num & (NODE_HASH_SIZE - 1);
+}
+
+hfsplus_bnode *__hfsplus_find_bnode(hfsplus_btree *tree, u32 cnid)
+{
+	hfsplus_bnode *node;
+
+	if (cnid >= tree->node_count) {
+		printk("HFS+-fs: request for non-existent node %d in B*Tree\n", cnid);
+		return NULL;
+	}
+
+	for (node = tree->node_hash[hfsplus_bnode_hash(cnid)];
+	     node; node = node->next_hash) {
+		if (node->this == cnid) {
+			return node;
+		}
+	}
+	return NULL;
+}
+
+hfsplus_bnode *__hfsplus_create_bnode(hfsplus_btree *tree, u32 cnid)
+{
+	struct super_block *sb;
+	hfsplus_bnode *node, *node2;
+	struct address_space *mapping;
+	struct page *page;
+	int size, block, i, hash;
+	loff_t off;
+
+	if (cnid >= tree->node_count) {
+		printk("HFS+-fs: request for non-existent node %d in B*Tree\n", cnid);
+		return NULL;
+	}
+
+	sb = tree->inode->i_sb;
+	size = sizeof(hfsplus_bnode) + tree->pages_per_bnode *
+		sizeof(struct page *);
+	node = kmalloc(size, GFP_KERNEL);
+	if (!node)
+		return NULL;
+	memset(node, 0, size);
+	node->tree = tree;
+	node->this = cnid;
+	set_bit(HFSPLUS_BNODE_NEW, &node->flags);
+	atomic_set(&node->refcnt, 1);
+	dprint(DBG_BNODE_REFS, "new_node(%d:%d): 1\n",
+	       node->tree->cnid, node->this);
+	init_waitqueue_head(&node->lock_wq);
+	spin_lock(&tree->hash_lock);
+	node2 = __hfsplus_find_bnode(tree, cnid);
+	if (!node2) {
+		hash = hfsplus_bnode_hash(cnid);
+		node->next_hash = tree->node_hash[hash];
+		tree->node_hash[hash] = node;
+		tree->node_hash_cnt++;
+	} else {
+		spin_unlock(&tree->hash_lock);
+		kfree(node);
+		wait_event(node2->lock_wq, !test_bit(HFSPLUS_BNODE_NEW, &node2->flags));
+		return node2;
+	}
+	spin_unlock(&tree->hash_lock);
+
+	mapping = tree->inode->i_mapping;
+	off = (loff_t)cnid * tree->node_size;
+	block = off >> PAGE_CACHE_SHIFT;
+	node->page_offset = off & ~PAGE_CACHE_MASK;
+	for (i = 0; i < tree->pages_per_bnode; i++) {
+		page = grab_cache_page(mapping, block++);
+		if (!page)
+			goto fail;
+		if (!PageUptodate(page)) {
+			if (mapping->a_ops->readpage(NULL, page))
+				goto fail;
+			wait_on_page_locked(page);
+			if (!PageUptodate(page))
+				goto fail;
+		} else
+			unlock_page(page);
+#if !REF_PAGES
+		page_cache_release(page);
+#endif
+		node->page[i] = page;
+	}
+
+	return node;
+fail:
+	if (page)
+		page_cache_release(page);
+	set_bit(HFSPLUS_BNODE_ERROR, &node->flags);
+	return node;
+}
+
+void __hfsplus_bnode_remove(hfsplus_bnode *node)
+{
+	hfsplus_bnode **p;
+
+	dprint(DBG_BNODE_REFS, "remove_node(%d:%d): %d\n",
+		node->tree->cnid, node->this, atomic_read(&node->refcnt));
+	for (p = &node->tree->node_hash[hfsplus_bnode_hash(node->this)];
+	     *p && *p != node; p = &(*p)->next_hash)
+		;
+	if (!*p)
+		BUG();
+	*p = node->next_hash;
+	node->tree->node_hash_cnt--;
+}
+
+/* Load a particular node out of a tree */
+hfsplus_bnode *hfsplus_find_bnode(hfsplus_btree *tree, u32 num)
+{
+	hfsplus_bnode *node;
+	hfsplus_btree_node_desc *desc;
+	int i, rec_off, off, next_off;
+	int entry_size, key_size;
+
+	spin_lock(&tree->hash_lock);
+	node = __hfsplus_find_bnode(tree, num);
+	if (node) {
+		hfsplus_get_bnode(node);
+		spin_unlock(&tree->hash_lock);
+		wait_event(node->lock_wq, !test_bit(HFSPLUS_BNODE_NEW, &node->flags));
+		return node;
+	}
+	spin_unlock(&tree->hash_lock);
+	node = __hfsplus_create_bnode(tree, num);
+	if (!node)
+		return ERR_PTR(-ENOMEM);
+	if (!test_bit(HFSPLUS_BNODE_NEW, &node->flags))
+		return node;
+
+	desc = (hfsplus_btree_node_desc *)(hfsplus_kmap(node->page[0]) + node->page_offset);
+	node->prev = be32_to_cpu(desc->prev);
+	node->next = be32_to_cpu(desc->next);
+	node->num_recs = be16_to_cpu(desc->num_rec);
+	node->kind = desc->kind;
+	node->height = desc->height;
+
+	if (!hfsplus_check_kh(tree, desc->kind, desc->height)) {
+		hfsplus_kunmap(node->page[0]);
+		goto node_error;
+	}
+	hfsplus_kunmap(node->page[0]);
+
+	rec_off = tree->node_size - 2;
+	off = hfsplus_bnode_read_u16(node, rec_off);
+	if (off != sizeof(hfsplus_btree_node_desc))
+		goto node_error;
+	for (i = 1; i <= node->num_recs; off = next_off, i++) {
+		rec_off -= 2;
+		next_off = hfsplus_bnode_read_u16(node, rec_off);
+		if (next_off <= off ||
+		    next_off > tree->node_size ||
+		    next_off & 1)
+			goto node_error;
+		entry_size = next_off - off;
+		if (node->kind != HFSPLUS_NODE_NDX &&
+		    node->kind != HFSPLUS_NODE_LEAF)
+			continue;
+		key_size = hfsplus_bnode_read_u16(node, off) + 2;
+		if (key_size >= entry_size || key_size & 1)
+			goto node_error;
+	}
+	clear_bit(HFSPLUS_BNODE_NEW, &node->flags);
+	wake_up(&node->lock_wq);
+	return node;
+
+node_error:
+	set_bit(HFSPLUS_BNODE_ERROR, &node->flags);
+	clear_bit(HFSPLUS_BNODE_NEW, &node->flags);
+	wake_up(&node->lock_wq);
+	hfsplus_put_bnode(node);
+	return ERR_PTR(-EIO);
+}
+
+void hfsplus_bnode_free(hfsplus_bnode *node)
+{
+	//int i;
+
+	//for (i = 0; i < node->tree->pages_per_bnode; i++)
+	//	if (node->page[i])
+	//		page_cache_release(node->page[i]);
+	kfree(node);
+}
+
+hfsplus_bnode *hfsplus_create_bnode(hfsplus_btree *tree, u32 num)
+{
+	hfsplus_bnode *node;
+	struct page **pagep;
+	int i;
+
+	spin_lock(&tree->hash_lock);
+	node = __hfsplus_find_bnode(tree, num);
+	spin_unlock(&tree->hash_lock);
+	if (node)
+		BUG();
+	node = __hfsplus_create_bnode(tree, num);
+	if (!node)
+		return ERR_PTR(-ENOMEM);
+
+	pagep = node->page;
+	memset(hfsplus_kmap(*pagep) + node->page_offset, 0,
+	       min((int)PAGE_CACHE_SIZE, (int)tree->node_size));
+	set_page_dirty(*pagep);
+	hfsplus_kunmap(*pagep++);
+	for (i = 1; i < tree->pages_per_bnode; i++) {
+		memset(hfsplus_kmap(*pagep), 0, PAGE_CACHE_SIZE);
+		set_page_dirty(*pagep);
+		hfsplus_kunmap(*pagep++);
+	}
+	clear_bit(HFSPLUS_BNODE_NEW, &node->flags);
+	wake_up(&node->lock_wq);
+
+	return node;
+}
+
+void hfsplus_get_bnode(hfsplus_bnode *node)
+{
+	if (node) {
+		atomic_inc(&node->refcnt);
+#if REF_PAGES
+		{
+		int i;
+		for (i = 0; i < node->tree->pages_per_bnode; i++)
+			get_page(node->page[i]);
+		}
+#endif
+		dprint(DBG_BNODE_REFS, "get_node(%d:%d): %d\n",
+		       node->tree->cnid, node->this, atomic_read(&node->refcnt));
+	}
+}
+
+/* Dispose of resources used by a node */
+void hfsplus_put_bnode(hfsplus_bnode *node)
+{
+	if (node) {
+		struct hfsplus_btree *tree = node->tree;
+		int i;
+
+		dprint(DBG_BNODE_REFS, "put_node(%d:%d): %d\n",
+		       node->tree->cnid, node->this, atomic_read(&node->refcnt));
+		if (!atomic_read(&node->refcnt))
+			BUG();
+		if (!atomic_dec_and_lock(&node->refcnt, &tree->hash_lock)) {
+#if REF_PAGES
+			for (i = 0; i < tree->pages_per_bnode; i++)
+				put_page(node->page[i]);
+#endif
+			return;
+		}
+		for (i = 0; i < tree->pages_per_bnode; i++) {
+			mark_page_accessed(node->page[i]);
+#if REF_PAGES
+			put_page(node->page[i]);
+#endif
+		}
+
+		if (test_bit(HFSPLUS_BNODE_DELETED, &node->flags)) {
+			__hfsplus_bnode_remove(node);
+			spin_unlock(&tree->hash_lock);
+			hfsplus_btree_free_node(node);
+			hfsplus_bnode_free(node);
+			return;
+		}
+		spin_unlock(&tree->hash_lock);
+	}
+}
+
+void hfsplus_lock_bnode(hfsplus_bnode *node)
+{
+	wait_event(node->lock_wq, !test_and_set_bit(HFSPLUS_BNODE_LOCK, &node->flags));
+}
+
+void hfsplus_unlock_bnode(hfsplus_bnode *node)
+{
+	clear_bit(HFSPLUS_BNODE_LOCK, &node->flags);
+	if (waitqueue_active(&node->lock_wq))
+		wake_up(&node->lock_wq);
+}
diff --git a/fs/hfsplus/brec.c b/fs/hfsplus/brec.c
new file mode 100644
index 00000000000000..aaf4a383ccc063
--- /dev/null
+++ b/fs/hfsplus/brec.c
@@ -0,0 +1,50 @@
+/*
+ *  linux/fs/hfsplus/brec.c
+ *
+ * Copyright (C) 2001
+ * Brad Boyer (flar@allandria.com)
+ * (C) 2003 Ardis Technologies <roman@ardistech.com>
+ *
+ * Handle individual btree records
+ */
+
+#include "hfsplus_fs.h"
+#include "hfsplus_raw.h"
+
+/* Get the length and offset of the given record in the given node */
+u16 hfsplus_brec_lenoff(hfsplus_bnode *node, u16 rec, u16 *off)
+{
+	u16 retval[2];
+	u16 dataoff;
+
+	dataoff = node->tree->node_size - (rec + 2) * 2;
+	hfsplus_bnode_readbytes(node, retval, dataoff, 4);
+	*off = be16_to_cpu(retval[1]);
+	return be16_to_cpu(retval[0]) - *off;
+}
+
+/* Get the length of the key from a keyed record */
+u16 hfsplus_brec_keylen(hfsplus_bnode *node, u16 rec)
+{
+	u16 klsz, retval, recoff;
+	unsigned char buf[2];
+
+	if ((node->kind != HFSPLUS_NODE_NDX)&&(node->kind != HFSPLUS_NODE_LEAF))
+		return 0;
+
+	klsz = (node->tree->attributes & HFSPLUS_TREE_BIGKEYS) ? 2 : 1;
+	if ((node->kind == HFSPLUS_NODE_NDX) &&
+	   !(node->tree->attributes & HFSPLUS_TREE_VAR_NDXKEY_SIZE)) {
+		retval = node->tree->max_key_len;
+	} else {
+		recoff = hfsplus_bnode_read_u16(node, node->tree->node_size - (rec + 1) * 2);
+		if (!recoff)
+			return 0;
+		hfsplus_bnode_readbytes(node, buf, recoff, klsz);
+		if (klsz == 1)
+			retval = buf[0];
+		else
+			retval = be16_to_cpu(*(u16 *)buf);
+	}
+	return (retval + klsz + 1) & 0xFFFE;
+}
diff --git a/fs/hfsplus/btree.c b/fs/hfsplus/btree.c
new file mode 100644
index 00000000000000..551d4d55f85292
--- /dev/null
+++ b/fs/hfsplus/btree.c
@@ -0,0 +1,317 @@
+/*
+ *  linux/fs/hfsplus/btree.c
+ *
+ * Copyright (C) 2001
+ * Brad Boyer (flar@allandria.com)
+ * (C) 2003 Ardis Technologies <roman@ardistech.com>
+ *
+ * Handle opening/closing btree
+ */
+
+#include <linux/slab.h>
+#include <linux/pagemap.h>
+#include <asm/div64.h>
+
+#include "hfsplus_fs.h"
+#include "hfsplus_raw.h"
+
+/* Release resources used by a btree */
+void hfsplus_close_btree(struct hfsplus_btree *tree)
+{
+	hfsplus_bnode *node;
+	int i;
+
+	if (!tree)
+		return;
+
+	for (i = 0; i < NODE_HASH_SIZE; i++) {
+		while ((node = tree->node_hash[i])) {
+			tree->node_hash[i] = node->next_hash;
+			if (atomic_read(&node->refcnt))
+				printk("HFS+: node %d:%d still has %d user(s)!\n",
+					node->tree->cnid, node->this, atomic_read(&node->refcnt));
+			hfsplus_bnode_free(node);
+			tree->node_hash_cnt--;
+		}
+	}
+	iput(tree->inode);
+	kfree(tree);
+}
+
+/* Fill in extra data in tree structure from header node */
+static void hfsplus_read_treeinfo(hfsplus_btree *tree, hfsplus_btree_head *hdr)
+{
+	unsigned int shift, size;
+
+	if (!tree || !hdr)
+		return;
+
+	tree->root = be32_to_cpu(hdr->root);
+	tree->leaf_count = be32_to_cpu(hdr->leaf_count);
+	tree->leaf_head = be32_to_cpu(hdr->leaf_head);
+	tree->leaf_tail = be32_to_cpu(hdr->leaf_tail);
+	tree->node_count = be32_to_cpu(hdr->node_count);
+	tree->free_nodes = be32_to_cpu(hdr->free_nodes);
+	tree->attributes = be32_to_cpu(hdr->attributes);
+	tree->node_size = be16_to_cpu(hdr->node_size);
+	tree->max_key_len = be16_to_cpu(hdr->max_key_len);
+	tree->depth = be16_to_cpu(hdr->depth);
+
+	size = tree->node_size;
+	if (size & (size - 1))
+		/* panic */;
+	for (shift = 0; size >>= 1; shift += 1)
+		;
+	tree->node_size_shift = shift;
+
+	tree->pages_per_bnode = (tree->node_size + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+}
+
+static void hfsplus_write_treeinfo(hfsplus_btree *tree, hfsplus_btree_head *hdr)
+{
+	hdr->root = cpu_to_be32(tree->root);
+	hdr->leaf_count = cpu_to_be32(tree->leaf_count);
+	hdr->leaf_head = cpu_to_be32(tree->leaf_head);
+	hdr->leaf_tail = cpu_to_be32(tree->leaf_tail);
+	hdr->node_count = cpu_to_be32(tree->node_count);
+	hdr->free_nodes = cpu_to_be32(tree->free_nodes);
+	hdr->attributes = cpu_to_be32(tree->attributes);
+	hdr->depth = cpu_to_be16(tree->depth);
+}
+
+/* Get a reference to a B*Tree and do some initial checks */
+hfsplus_btree *hfsplus_open_btree(struct super_block *sb, u32 id)
+{
+	hfsplus_btree *tree;
+	hfsplus_btree_head *head;
+	struct address_space *mapping;
+	struct page *page;
+
+	tree = kmalloc(sizeof(struct hfsplus_btree), GFP_KERNEL);
+	if (!tree)
+		return NULL;
+	memset(tree, 0, sizeof(struct hfsplus_btree));
+
+	init_MUTEX(&tree->tree_lock);
+	spin_lock_init(&tree->hash_lock);
+	/* Set the correct compare function */
+	tree->sb = sb;
+	tree->cnid = id;
+	if (id == HFSPLUS_EXT_CNID) {
+		tree->keycmp = hfsplus_cmp_ext_key;
+	} else if (id == HFSPLUS_CAT_CNID) {
+		tree->keycmp = hfsplus_cmp_cat_key;
+	} else {
+		printk("HFS+-fs: unknown B*Tree requested\n");
+		goto free_tree;
+	}
+	tree->inode = iget(sb, id);
+	if (!tree->inode)
+		goto free_tree;
+
+	mapping = tree->inode->i_mapping;
+	page = grab_cache_page(mapping, 0);
+	if (!page)
+		goto free_tree;
+	if (!PageUptodate(page)) {
+		if (mapping->a_ops->readpage(NULL, page))
+			goto fail_page;
+		wait_on_page_locked(page);
+		if (!PageUptodate(page))
+			goto fail_page;
+	} else
+		unlock_page(page);
+
+	/* Load the header */
+	head = (hfsplus_btree_head *)(kmap(page) + sizeof(hfsplus_btree_node_desc));
+	hfsplus_read_treeinfo(tree, head);
+	kunmap(page);
+	page_cache_release(page);
+	return tree;
+
+ fail_page:
+	page_cache_release(page);
+ free_tree:
+	iput(tree->inode);
+	kfree(tree);
+	return NULL;
+}
+
+void hfsplus_write_btree(struct hfsplus_btree *tree)
+{
+	hfsplus_btree_head *head;
+	hfsplus_bnode *node;
+	struct page *page;
+
+	node = hfsplus_find_bnode(tree, 0);
+	if (!node)
+		/* panic? */
+		return;
+	/* Load the header */
+	page = node->page[0];
+	head = (hfsplus_btree_head *)(kmap(page) + sizeof(hfsplus_btree_node_desc));
+	hfsplus_write_treeinfo(tree, head);
+	kunmap(page);
+	set_page_dirty(page);
+	hfsplus_put_bnode(node);
+}
+
+hfsplus_bnode *hfsplus_btree_alloc_node(hfsplus_btree *tree)
+{
+	hfsplus_bnode *node;
+	struct page **pagep;
+	u32 nidx;
+	u16 idx, off, len;
+	u8 *data, byte, m;
+	int i;
+
+	while (!tree->free_nodes) {
+		loff_t size;
+		int res;
+
+		res = hfsplus_extend_file(tree->inode);
+		if (res)
+			return ERR_PTR(res);
+		HFSPLUS_I(tree->inode).total_blocks = HFSPLUS_I(tree->inode).alloc_blocks;
+		size = HFSPLUS_I(tree->inode).total_blocks;
+		size <<= tree->sb->s_blocksize_bits;
+		tree->inode->i_size = size;
+		do_div(size, (u32)tree->node_size);
+		tree->free_nodes = (u32)size - tree->node_count;
+		tree->node_count = size;
+	}
+
+	nidx = 0;
+	node = hfsplus_find_bnode(tree, nidx);
+	len = hfsplus_brec_lenoff(node, 2, &off);
+
+	off += node->page_offset;
+	pagep = node->page + (off >> PAGE_CACHE_SHIFT);
+	data = hfsplus_kmap(*pagep);
+	off &= ~PAGE_CACHE_MASK;
+	idx = 0;
+
+	for (;;) {
+		while (len) {
+			byte = data[off];
+			if (byte != 0xff) {
+				for (m = 0x80, i = 0; i < 8; m >>= 1, i++) {
+					if (!(byte & m)) {
+						idx += i;
+						data[off] |= m;
+						set_page_dirty(*pagep);
+						hfsplus_kunmap(*pagep);
+						tree->free_nodes--;
+						mark_inode_dirty(tree->inode);
+						hfsplus_put_bnode(node);
+						return hfsplus_create_bnode(tree, idx);
+					}
+				}
+			}
+			if (++off >= PAGE_CACHE_SIZE) {
+				hfsplus_kunmap(*pagep++);
+				data = hfsplus_kmap(*pagep);
+				off = 0;
+			}
+			idx += 8;
+			len--;
+		}
+		nidx = node->next;
+		hfsplus_put_bnode(node);
+		if (!nidx) {
+			printk("need new bmap node...\n");
+			hfsplus_kunmap(*pagep);
+			return ERR_PTR(-ENOSPC);
+		}
+		node = hfsplus_find_bnode(tree, nidx);
+		len = hfsplus_brec_lenoff(node, 0, &off);
+
+		off += node->page_offset;
+		pagep = node->page + (off >> PAGE_CACHE_SHIFT);
+		data = hfsplus_kmap(*pagep);
+		off &= ~PAGE_CACHE_MASK;
+	}
+}
+
+void hfsplus_btree_remove_node(hfsplus_bnode *node)
+{
+	hfsplus_btree *tree;
+	hfsplus_bnode *tmp;
+	u32 cnid;
+
+	tree = node->tree;
+	if (node->prev) {
+		tmp = hfsplus_find_bnode(tree, node->prev);
+		tmp->next = node->next;
+		cnid = cpu_to_be32(tmp->next);
+		hfsplus_bnode_writebytes(tmp, &cnid, offsetof(hfsplus_btree_node_desc, next), 4);
+		hfsplus_put_bnode(tmp);
+	} else if (node->kind == HFSPLUS_NODE_LEAF)
+		tree->leaf_head = node->next;
+
+	if (node->next) {
+		tmp = hfsplus_find_bnode(tree, node->next);
+		tmp->prev = node->prev;
+		cnid = cpu_to_be32(tmp->prev);
+		hfsplus_bnode_writebytes(tmp, &cnid, offsetof(hfsplus_btree_node_desc, prev), 4);
+		hfsplus_put_bnode(tmp);
+	} else if (node->kind == HFSPLUS_NODE_LEAF)
+		tree->leaf_tail = node->prev;
+
+	// move down?
+	if (!node->prev && !node->next) {
+		printk("hfsplus_btree_del_level\n");
+	}
+	if (!node->parent) {
+		tree->root = 0;
+		tree->depth = 0;
+	}
+	set_bit(HFSPLUS_BNODE_DELETED, &node->flags);
+}
+
+void hfsplus_btree_free_node(hfsplus_bnode *node)
+{
+	hfsplus_btree *tree;
+	struct page *page;
+	u16 off, len;
+	u32 nidx;
+	u8 *data, byte, m;
+
+	dprint(DBG_BNODE_MOD, "btree_free_node: %u\n", node->this);
+	tree = node->tree;
+	nidx = node->this;
+	node = hfsplus_find_bnode(tree, 0);
+	len = hfsplus_brec_lenoff(node, 2, &off);
+	while (nidx >= len * 8) {
+		u32 i;
+
+		nidx -= len * 8;
+		i = node->next;
+		hfsplus_put_bnode(node);
+		if (!nidx)
+			/* panic */;
+		node = hfsplus_find_bnode(tree, nidx);
+		if (node->kind != HFSPLUS_NODE_MAP)
+			/* panic */;
+		len = hfsplus_brec_lenoff(node, 0, &off);
+	}
+	off += node->page_offset + nidx / 8;
+	page = node->page[off >> PAGE_CACHE_SHIFT];
+	data = hfsplus_kmap(page);
+	off &= ~PAGE_CACHE_MASK;
+	m = 1 << (~nidx & 7);
+	byte = data[off];
+	if (!(byte & m)) {
+		BUG();
+		/* panic */
+		hfsplus_kunmap(page);
+		hfsplus_put_bnode(node);
+		return;
+	}
+	data[off] = byte & ~m;
+	set_page_dirty(page);
+	hfsplus_kunmap(page);
+	hfsplus_put_bnode(node);
+	tree->free_nodes++;
+	mark_inode_dirty(tree->inode);
+}
diff --git a/fs/hfsplus/catalog.c b/fs/hfsplus/catalog.c
new file mode 100644
index 00000000000000..a8710372f4da23
--- /dev/null
+++ b/fs/hfsplus/catalog.c
@@ -0,0 +1,333 @@
+/*
+ *  linux/fs/hfsplus/catalog.c
+ *
+ * Copyright (C) 2001
+ * Brad Boyer (flar@allandria.com)
+ * (C) 2003 Ardis Technologies <roman@ardistech.com>
+ *
+ * Handling of catalog records
+ */
+
+#include <linux/sched.h>
+
+#include "hfsplus_fs.h"
+#include "hfsplus_raw.h"
+
+int hfsplus_cmp_cat_key(hfsplus_btree_key *k1, hfsplus_btree_key *k2)
+{
+	u32 k1p, k2p;
+
+	k1p = k1->cat.parent;
+	k2p = k2->cat.parent;
+	if (k1p != k2p)
+		return be32_to_cpu(k1p) < be32_to_cpu(k2p) ? -1 : 1;
+
+	return hfsplus_unistrcmp(&k1->cat.name, &k2->cat.name);
+}
+
+void hfsplus_fill_cat_key(hfsplus_btree_key *key, u32 parent,
+			  struct qstr *str)
+{
+	int len;
+
+	key->cat.parent = cpu_to_be32(parent);
+	if (str) {
+		hfsplus_asc2uni(&key->cat.name, str->name, str->len);
+		len = be16_to_cpu(key->cat.name.length);
+	} else
+		len = key->cat.name.length = 0;
+	key->key_len = cpu_to_be16(6 + 2 * len);
+}
+
+static void hfsplus_fill_cat_key_uni(hfsplus_btree_key *key, u32 parent,
+				     hfsplus_unistr *name)
+{
+	int ustrlen;
+
+	ustrlen = be16_to_cpu(name->length);
+	key->cat.parent = cpu_to_be32(parent);
+	key->cat.name.length = cpu_to_be16(ustrlen);
+	ustrlen *= 2;
+	memcpy(key->cat.name.unicode, name->unicode, ustrlen);
+	key->key_len = cpu_to_be16(6 + ustrlen);
+}
+
+static void hfsplus_set_perms(struct inode *inode, hfsplus_perm *perms)
+{
+	perms->mode = cpu_to_be32(inode->i_mode);
+	perms->owner = cpu_to_be32(inode->i_uid);
+	perms->group = cpu_to_be32(inode->i_gid);
+}
+
+static int hfsplus_fill_cat_entry(hfsplus_cat_entry *entry, u32 cnid, struct inode *inode)
+{
+	if (S_ISDIR(inode->i_mode)) {
+		hfsplus_cat_folder *folder;
+
+		folder = &entry->folder;
+		memset(folder, 0, sizeof(*folder));
+		folder->type = cpu_to_be16(HFSPLUS_FOLDER);
+		folder->id = cpu_to_be32(inode->i_ino);
+		folder->create_date = folder->content_mod_date = 
+			folder->attribute_mod_date = folder->access_date = 
+			hfsp_now2mt();
+		hfsplus_set_perms(inode, &folder->permissions);
+		if (inode == HFSPLUS_SB(inode->i_sb).hidden_dir)
+			/* invisible and namelocked */
+			folder->user_info.frFlags = cpu_to_be16(0x5000);
+		return sizeof(*folder);
+	} else {
+		hfsplus_cat_file *file;
+
+		file = &entry->file;
+		memset(file, 0, sizeof(*file));
+		file->type = cpu_to_be16(HFSPLUS_FILE);
+		file->id = cpu_to_be32(cnid);
+		file->create_date = file->content_mod_date =
+			file->attribute_mod_date = file->access_date =
+			hfsp_now2mt();
+		if (cnid == inode->i_ino) {
+			hfsplus_set_perms(inode, &file->permissions);
+			file->user_info.fdType = cpu_to_be32(HFSPLUS_SB(inode->i_sb).type);
+			file->user_info.fdCreator = cpu_to_be32(HFSPLUS_SB(inode->i_sb).creator);
+		} else {
+			file->user_info.fdType = cpu_to_be32(HFSP_HARDLINK_TYPE);
+			file->user_info.fdCreator = cpu_to_be32(HFSP_HFSPLUS_CREATOR);
+			file->user_info.fdFlags = cpu_to_be16(0x100);
+			file->permissions.dev = cpu_to_be32(HFSPLUS_I(inode).dev);
+		}
+		return sizeof(*file);
+	}
+}
+
+static int hfsplus_fill_cat_thread(hfsplus_cat_entry *entry, int type,
+				   u32 parentid, struct qstr *str)
+{
+	entry->type = cpu_to_be16(type);
+	entry->thread.reserved = 0;
+	entry->thread.parentID = cpu_to_be32(parentid);
+	hfsplus_asc2uni(&entry->thread.nodeName, str->name, str->len);
+	return 10 + be16_to_cpu(entry->thread.nodeName.length) * 2;
+}
+
+/* Try to get a catalog entry for given catalog id */
+int hfsplus_find_cat(struct super_block *sb, unsigned long cnid,
+		     struct hfsplus_find_data *fd)
+{
+	hfsplus_cat_entry tmp;
+	int err;
+	u16 type;
+
+	hfsplus_fill_cat_key(fd->search_key, cnid, NULL);
+	err = hfsplus_btree_find_entry(fd, &tmp, sizeof(hfsplus_cat_entry));
+	if (err)
+		return err;
+
+	type = be16_to_cpu(tmp.type);
+	if (type != HFSPLUS_FOLDER_THREAD && type != HFSPLUS_FILE_THREAD) {
+		printk("HFS+-fs: Found bad thread record in catalog\n");
+		return -EIO;
+	}
+
+	hfsplus_fill_cat_key_uni(fd->search_key, be32_to_cpu(tmp.thread.parentID),
+				 &tmp.thread.nodeName);
+	return hfsplus_btree_find(fd);
+}
+
+int hfsplus_create_cat(u32 cnid, struct inode *dir, struct qstr *str, struct inode *inode)
+{
+	struct hfsplus_find_data fd;
+	struct super_block *sb;
+	hfsplus_cat_entry entry;
+	int entry_size;
+	int err;
+
+	dprint(DBG_CAT_MOD, "create_cat: %s,%u(%d)\n", str->name, cnid, inode->i_nlink);
+	sb = dir->i_sb;
+	hfsplus_find_init(HFSPLUS_SB(sb).cat_tree, &fd);
+
+	hfsplus_fill_cat_key(fd.search_key, cnid, NULL);
+	entry_size = hfsplus_fill_cat_thread(&entry, S_ISDIR(inode->i_mode) ?
+			HFSPLUS_FOLDER_THREAD : HFSPLUS_FILE_THREAD,
+			dir->i_ino, str);
+	err = hfsplus_btree_find(&fd);
+	if (err != -ENOENT) {
+		if (!err)
+			err = -EEXIST;
+		goto out;
+	}
+	err = hfsplus_bnode_insert_rec(&fd, &entry, entry_size);
+	if (err)
+		goto out;
+
+	hfsplus_fill_cat_key(fd.search_key, dir->i_ino, str);
+	entry_size = hfsplus_fill_cat_entry(&entry, cnid, inode);
+	err = hfsplus_btree_find(&fd);
+	if (err != -ENOENT) {
+		/* panic? */
+		if (!err)
+			err = -EEXIST;
+		goto out;
+	}
+	err = hfsplus_bnode_insert_rec(&fd, &entry, entry_size);
+	if (!err) {
+		dir->i_size++;
+		mark_inode_dirty(dir);
+	}
+out:
+	hfsplus_find_exit(&fd);
+
+	return err;
+}
+
+int hfsplus_delete_cat(u32 cnid, struct inode *dir, struct qstr *str)
+{
+	struct super_block *sb;
+	struct hfsplus_find_data fd;
+	hfsplus_fork_raw fork;
+	struct list_head *pos;
+	int err, off;
+	u16 type;
+
+	dprint(DBG_CAT_MOD, "delete_cat: %s,%u\n", str ? str->name : NULL, cnid);
+	sb = dir->i_sb;
+	hfsplus_find_init(HFSPLUS_SB(sb).cat_tree, &fd);
+
+	if (!str) {
+		int len;
+
+		hfsplus_fill_cat_key(fd.search_key, cnid, NULL);
+		err = hfsplus_btree_find(&fd);
+		if (err)
+			goto out;
+
+		off = fd.entryoffset + offsetof(hfsplus_cat_thread, nodeName);
+		fd.search_key->cat.parent = cpu_to_be32(dir->i_ino);
+		hfsplus_bnode_readbytes(fd.bnode, &fd.search_key->cat.name.length, off, 2);
+		len = be16_to_cpu(fd.search_key->cat.name.length) * 2;
+		hfsplus_bnode_readbytes(fd.bnode, &fd.search_key->cat.name.unicode, off + 2, len);
+		fd.search_key->key_len = cpu_to_be16(6 + len);
+	} else
+		hfsplus_fill_cat_key(fd.search_key, dir->i_ino, str);
+
+	err = hfsplus_btree_find(&fd);
+	if (err)
+		goto out;
+
+	type = hfsplus_bnode_read_u16(fd.bnode, fd.entryoffset);
+	if (type == HFSPLUS_FILE) {
+#if 0
+		off = fd.entryoffset + offsetof(hfsplus_cat_file, data_fork);
+		hfsplus_bnode_readbytes(fd.bnode, &fork, off, sizeof(fork));
+		hfsplus_free_fork(sb, cnid, &fork, HFSPLUS_TYPE_DATA);
+#endif
+
+		off = fd.entryoffset + offsetof(hfsplus_cat_file, rsrc_fork);
+		hfsplus_bnode_readbytes(fd.bnode, &fork, off, sizeof(fork));
+		hfsplus_free_fork(sb, cnid, &fork, HFSPLUS_TYPE_RSRC);
+	}
+
+	list_for_each(pos, &HFSPLUS_I(dir).open_dir_list) {
+		struct hfsplus_readdir_data *rd =
+			list_entry(pos, struct hfsplus_readdir_data, list);
+		if (fd.tree->keycmp(fd.search_key, (void *)&rd->key) < 0)
+			rd->file->f_pos--;
+	}
+
+	err = hfsplus_bnode_remove_rec(&fd);
+	if (err)
+		goto out;
+
+	hfsplus_fill_cat_key(fd.search_key, cnid, NULL);
+	err = hfsplus_btree_find(&fd);
+	if (err)
+		goto out;
+
+	err = hfsplus_bnode_remove_rec(&fd);
+	if (err) 
+		goto out;
+
+	dir->i_size--;
+	mark_inode_dirty(dir);
+out:
+	hfsplus_find_exit(&fd);
+
+	return err;
+}
+
+int hfsplus_rename_cat(u32 cnid,
+		       struct inode *src_dir, struct qstr *src_name,
+		       struct inode *dst_dir, struct qstr *dst_name)
+{
+	struct super_block *sb;
+	struct hfsplus_find_data src_fd, dst_fd;
+	hfsplus_cat_entry entry;
+	int entry_size, type;
+	int err = 0;
+
+	dprint(DBG_CAT_MOD, "rename_cat: %u - %lu,%s - %lu,%s\n", cnid, src_dir->i_ino, src_name->name,
+		dst_dir->i_ino, dst_name->name);
+	sb = src_dir->i_sb;
+	hfsplus_find_init(HFSPLUS_SB(sb).cat_tree, &src_fd);
+	dst_fd = src_fd;
+
+	/* find the old dir entry and read the data */
+	hfsplus_fill_cat_key(src_fd.search_key, src_dir->i_ino, src_name);
+	err = hfsplus_btree_find(&src_fd);
+	if (err)
+		goto out;
+		
+	hfsplus_bnode_readbytes(src_fd.bnode, &entry, src_fd.entryoffset,
+				src_fd.entrylength);
+
+	/* create new dir entry with the data from the old entry */
+	hfsplus_fill_cat_key(dst_fd.search_key, dst_dir->i_ino, dst_name);
+	err = hfsplus_btree_find(&dst_fd);
+	if (err != -ENOENT) {
+		if (!err)
+			err = -EEXIST;
+		goto out;
+	}
+
+	err = hfsplus_bnode_insert_rec(&dst_fd, &entry, src_fd.entrylength);
+	if (err)
+		goto out;
+	dst_dir->i_size++;
+	mark_inode_dirty(dst_dir);
+
+	/* finally remove the old entry */
+	hfsplus_fill_cat_key(src_fd.search_key, src_dir->i_ino, src_name);
+	err = hfsplus_btree_find(&src_fd);
+	if (err)
+		goto out;
+	err = hfsplus_bnode_remove_rec(&src_fd);
+	if (err)
+		goto out;
+	src_dir->i_size--;
+	mark_inode_dirty(src_dir);
+
+	/* remove old thread entry */
+	hfsplus_fill_cat_key(src_fd.search_key, cnid, NULL);
+	err = hfsplus_btree_find(&src_fd);
+	if (err)
+		goto out;
+	type = hfsplus_bnode_read_u16(src_fd.bnode, src_fd.entryoffset);
+	err = hfsplus_bnode_remove_rec(&src_fd);
+	if (err)
+		goto out;
+
+	/* create new thread entry */
+	hfsplus_fill_cat_key(dst_fd.search_key, cnid, NULL);
+	entry_size = hfsplus_fill_cat_thread(&entry, type, dst_dir->i_ino, dst_name);
+	err = hfsplus_btree_find(&dst_fd);
+	if (err != -ENOENT) {
+		if (!err)
+			err = -EEXIST;
+		goto out;
+	}
+	err = hfsplus_bnode_insert_rec(&dst_fd, &entry, entry_size);
+out:
+	hfsplus_put_bnode(dst_fd.bnode);
+	hfsplus_find_exit(&src_fd);
+	return err;
+}
diff --git a/fs/hfsplus/dir.c b/fs/hfsplus/dir.c
new file mode 100644
index 00000000000000..09337d80a79987
--- /dev/null
+++ b/fs/hfsplus/dir.c
@@ -0,0 +1,492 @@
+/*
+ *  linux/fs/hfsplus/dir.c
+ *
+ * Copyright (C) 2001
+ * Brad Boyer (flar@allandria.com)
+ * (C) 2003 Ardis Technologies <roman@ardistech.com>
+ *
+ * Handling of directories
+ */
+
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/random.h>
+#include <linux/version.h>
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
+#include <linux/buffer_head.h>
+#endif
+
+#include "hfsplus_fs.h"
+#include "hfsplus_raw.h"
+
+/* Find the entry inside dir named dentry->d_name */
+static struct dentry *hfsplus_lookup(struct inode *dir, struct dentry *dentry)
+{
+	struct inode *inode = NULL;
+	struct hfsplus_find_data fd;
+	struct super_block *sb;
+	hfsplus_cat_entry entry;
+	int err;
+	u32 cnid, linkid = 0;
+	u16 type;
+
+	sb = dir->i_sb;
+	dentry->d_fsdata = NULL;
+	hfsplus_find_init(HFSPLUS_SB(sb).cat_tree, &fd);
+	hfsplus_fill_cat_key(fd.search_key, dir->i_ino, &dentry->d_name);
+again:
+	err = hfsplus_btree_find_entry(&fd, &entry, sizeof(entry));
+	if (err) {
+		if (err == -ENOENT) {
+			hfsplus_find_exit(&fd);
+			/* No such entry */
+			inode = NULL;
+			goto out;
+		}
+		goto fail;
+	}
+	type = be16_to_cpu(entry.type);
+	if (type == HFSPLUS_FOLDER) {
+		if (fd.entrylength < sizeof(hfsplus_cat_folder)) {
+			err = -EIO;
+			goto fail;
+		}
+		cnid = be32_to_cpu(entry.folder.id);
+	} else if (type == HFSPLUS_FILE) {
+		if (fd.entrylength < sizeof(hfsplus_cat_file)) {
+			err = -EIO;
+			goto fail;
+		}
+		cnid = be32_to_cpu(entry.file.id);
+		if (entry.file.user_info.fdType == cpu_to_be32(HFSP_HARDLINK_TYPE) &&
+		    entry.file.user_info.fdCreator == cpu_to_be32(HFSP_HFSPLUS_CREATOR)) {
+			struct qstr str;
+			char name[32];
+
+			if (dentry->d_fsdata) {
+				err = -ENOENT;
+				inode = NULL;
+				goto out;
+			}
+			dentry->d_fsdata = (void *)(unsigned long)cnid;
+			linkid = be32_to_cpu(entry.file.permissions.dev);
+			str.len = sprintf(name, "iNode%d", linkid);
+			str.name = name;
+			hfsplus_fill_cat_key(fd.search_key, HFSPLUS_SB(sb).hidden_dir->i_ino, &str);
+			goto again;
+		} else if (!dentry->d_fsdata)
+			dentry->d_fsdata = (void *)(unsigned long)cnid;
+	} else {
+		printk("HFS+-fs: Illegal catalog entry type in lookup\n");
+		err = -EIO;
+		goto fail;
+	}
+	hfsplus_find_exit(&fd);
+	inode = iget(dir->i_sb, cnid);
+	if (!inode)
+		return ERR_PTR(-EACCES);
+	if (S_ISREG(inode->i_mode))
+		HFSPLUS_I(inode).dev = linkid;
+out:
+	d_add(dentry, inode);
+	return NULL;
+fail:
+	hfsplus_find_exit(&fd);
+	return ERR_PTR(err);
+}
+
+static int hfsplus_readdir(struct file *filp, void *dirent, filldir_t filldir)
+{
+	struct inode *inode = filp->f_dentry->d_inode;
+	struct super_block *sb = inode->i_sb;
+	int len, err;
+	char strbuf[HFSPLUS_MAX_STRLEN + 1];
+	hfsplus_cat_entry entry;
+	struct hfsplus_find_data fd;
+	struct hfsplus_readdir_data *rd;
+	u16 type;
+
+	if (filp->f_pos >= inode->i_size)
+		return 0;
+
+	hfsplus_find_init(HFSPLUS_SB(sb).cat_tree, &fd);
+	hfsplus_fill_cat_key(fd.search_key, inode->i_ino, NULL);
+	err = hfsplus_btree_find(&fd);
+	if (err)
+		goto out;
+
+	switch ((u32)filp->f_pos) {
+	case 0:
+		/* This is completely artificial... */
+		if (filldir(dirent, ".", 1, 0, inode->i_ino, DT_DIR))
+			goto out;
+		filp->f_pos++;
+		/* fall through */
+	case 1:
+		hfsplus_bnode_readbytes(fd.bnode, &entry, fd.entryoffset, fd.entrylength);
+		if (be16_to_cpu(entry.type) != HFSPLUS_FOLDER_THREAD) {
+			printk("HFS+-fs: bad catalog folder thread\n");
+			err = -EIO;
+			goto out;
+		}
+		if (fd.entrylength < HFSPLUS_MIN_THREAD_SZ) {
+			printk("HFS+-fs: truncated catalog thread\n");
+			err = -EIO;
+			goto out;
+		}
+		if (filldir(dirent, "..", 2, 1,
+			    be32_to_cpu(entry.thread.parentID), DT_DIR))
+			goto out;
+		filp->f_pos++;
+		/* fall through */
+	default:
+		if (filp->f_pos >= inode->i_size)
+			goto out;
+		err = hfsplus_btree_move(&fd, filp->f_pos - 1);
+		if (err)
+			goto out;
+	}
+
+	for (;;) {
+		if (be32_to_cpu(fd.key->cat.parent) != inode->i_ino) {
+			printk("HFS+-fs: walked past end of dir\n");
+			err = -EIO;
+			goto out;
+		}
+		hfsplus_bnode_readbytes(fd.bnode, &entry, fd.entryoffset, fd.entrylength);
+		type = be16_to_cpu(entry.type);
+		len = HFSPLUS_MAX_STRLEN;
+		err = hfsplus_uni2asc(&fd.key->cat.name, strbuf, &len);
+		if (err)
+			goto out;
+		if (type == HFSPLUS_FOLDER) {
+			if (fd.entrylength < sizeof(hfsplus_cat_folder)) {
+				printk("HFS+-fs: small dir entry\n");
+				err = -EIO;
+				goto out;
+			}
+			if (HFSPLUS_SB(sb).hidden_dir &&
+			    HFSPLUS_SB(sb).hidden_dir->i_ino == be32_to_cpu(entry.folder.id))
+				goto next;
+			if (filldir(dirent, strbuf, len, filp->f_pos,
+				    be32_to_cpu(entry.folder.id), DT_DIR))
+				break;
+		} else if (type == HFSPLUS_FILE) {
+			if (fd.entrylength < sizeof(hfsplus_cat_file)) {
+				printk("HFS+-fs: small file entry\n");
+				err = -EIO;
+				goto out;
+			}
+			if (filldir(dirent, strbuf, len, filp->f_pos,
+				    be32_to_cpu(entry.file.id), DT_REG))
+				break;
+		} else {
+			printk("HFS+-fs: bad catalog entry type\n");
+			err = -EIO;
+			goto out;
+		}
+	next:
+		filp->f_pos++;
+		if (filp->f_pos >= inode->i_size)
+			goto out;
+		err = hfsplus_btree_move(&fd, 1);
+		if (err)
+			goto out;
+	}
+	rd = filp->private_data;
+	if (!filp->private_data) {
+		rd = kmalloc(sizeof(struct hfsplus_readdir_data), GFP_KERNEL);
+		if (!rd) {
+			err = -ENOMEM;
+			goto out;
+		}
+		filp->private_data = rd;
+		rd->file = filp;
+		list_add(&rd->list, &HFSPLUS_I(inode).open_dir_list);
+	}
+	memcpy(&rd->key, fd.key, sizeof(hfsplus_cat_key));
+out:
+	hfsplus_find_exit(&fd);
+	return err;
+}
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+static loff_t hfsplus_seek_dir(struct file *file, loff_t offset, int origin)
+{
+	loff_t res;
+
+	down(&file->f_dentry->d_inode->i_sem);
+	res = default_llseek(file, offset, origin);
+	up(&file->f_dentry->d_inode->i_sem);
+
+	return res;
+}
+#endif
+
+static int hfsplus_dir_release(struct inode *inode, struct file *file)
+{
+	struct hfsplus_readdir_data *rd = file->private_data;
+	if (rd) {
+		list_del(&rd->list);
+		kfree(rd);
+	}
+	return 0;
+}
+
+int hfsplus_create(struct inode *dir, struct dentry *dentry, int mode)
+{
+	struct inode *inode;
+	int res;
+
+	inode = hfsplus_new_inode(dir->i_sb, mode);
+	if (!inode)
+		return -ENOSPC;
+
+	res = hfsplus_create_cat(inode->i_ino, dir, &dentry->d_name, inode);
+	if (res) {
+		inode->i_nlink = 0;
+		iput(inode);
+		return res;
+	}
+	dentry->d_fsdata = (void *)inode->i_ino;
+	d_instantiate(dentry, inode);
+	mark_inode_dirty(inode);
+	return 0;
+}
+
+int hfsplus_link(struct dentry *src_dentry, struct inode *dst_dir, struct dentry *dst_dentry)
+{
+	struct super_block *sb = dst_dir->i_sb;
+	struct inode *inode = src_dentry->d_inode;
+	struct inode *src_dir = src_dentry->d_parent->d_inode;
+	struct qstr str;
+	char name[32];
+	u32 cnid, id;
+	int res;
+
+	if (HFSPLUS_IS_RSRC(inode))
+		return -EPERM;
+
+	if (inode->i_ino == (u32)(unsigned long)src_dentry->d_fsdata) {
+		for (;;) {
+			get_random_bytes(&id, sizeof(cnid));
+			id &= 0x3fffffff;
+			str.name = name;
+			str.len = sprintf(name, "iNode%d", id);
+			res = hfsplus_rename_cat(inode->i_ino,
+						 src_dir, &src_dentry->d_name,
+						 HFSPLUS_SB(sb).hidden_dir, &str);
+			if (!res)
+				break;
+			if (res != -EEXIST)
+				return res;
+		}
+		HFSPLUS_I(inode).dev = id;
+		cnid = HFSPLUS_SB(sb).next_cnid++;
+		src_dentry->d_fsdata = (void *)(unsigned long)cnid;
+		res = hfsplus_create_cat(cnid, src_dir, &src_dentry->d_name, inode);
+		if (res)
+			/* panic? */
+			return res;
+		HFSPLUS_SB(sb).file_count++;
+	}
+	cnid = HFSPLUS_SB(sb).next_cnid++;
+	res = hfsplus_create_cat(cnid, dst_dir, &dst_dentry->d_name, inode);
+	if (res)
+		return res;
+
+	inode->i_nlink++;
+	dst_dentry->d_fsdata = (void *)(unsigned long)cnid;
+	d_instantiate(dst_dentry, inode);
+	atomic_inc(&inode->i_count);
+	inode->i_ctime = CURRENT_TIME;
+	mark_inode_dirty(inode);
+	HFSPLUS_SB(sb).file_count++;
+	sb->s_dirt = 1;
+
+	return 0;
+}
+
+int hfsplus_unlink(struct inode *dir, struct dentry *dentry)
+{
+	struct super_block *sb = dir->i_sb;
+	struct inode *inode = dentry->d_inode;
+	struct qstr str;
+	char name[32];
+	u32 cnid;
+	int res;
+
+	if (HFSPLUS_IS_RSRC(inode))
+		return -EPERM;
+
+	cnid = (u32)(unsigned long)dentry->d_fsdata;
+	if (inode->i_ino == cnid &&
+	    atomic_read(&HFSPLUS_I(inode).opencnt)) {
+		str.name = name;
+		str.len = sprintf(name, "temp%lu", inode->i_ino);
+		res = hfsplus_rename_cat(inode->i_ino,
+					 dir, &dentry->d_name,
+					 HFSPLUS_SB(sb).hidden_dir, &str);
+		if (!res)
+			inode->i_flags |= S_DEAD;
+		return res;
+	}
+	res = hfsplus_delete_cat(cnid, dir, &dentry->d_name);
+	if (res)
+		return res;
+
+	inode->i_nlink--;
+	hfsplus_delete_inode(inode);
+	if (inode->i_ino != cnid && !inode->i_nlink) {
+		if (!atomic_read(&HFSPLUS_I(inode).opencnt)) {
+			res = hfsplus_delete_cat(inode->i_ino, HFSPLUS_SB(sb).hidden_dir, NULL);
+			if (!res)
+				hfsplus_delete_inode(inode);
+		} else
+			inode->i_flags |= S_DEAD;
+	}
+	inode->i_ctime = CURRENT_TIME;
+	mark_inode_dirty(inode);
+
+	return res;
+}
+
+int hfsplus_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+{
+	struct inode *inode;
+	int res;
+
+	inode = hfsplus_new_inode(dir->i_sb, S_IFDIR | mode);
+	if (!inode)
+		return -ENOSPC;
+
+	res = hfsplus_create_cat(inode->i_ino, dir, &dentry->d_name, inode);
+	if (res) {
+		inode->i_nlink = 0;
+		iput(inode);
+		return res;
+	}
+	d_instantiate(dentry, inode);
+	mark_inode_dirty(inode);
+	return 0;
+}
+
+int hfsplus_rmdir(struct inode *dir, struct dentry *dentry)
+{
+	struct inode *inode;
+	int res;
+
+	inode = dentry->d_inode;
+	if (inode->i_size != 2)
+		return -ENOTEMPTY;
+	res = hfsplus_delete_cat(inode->i_ino, dir, &dentry->d_name);
+	if (res)
+		return res;
+	inode->i_nlink = 0;
+	inode->i_ctime = CURRENT_TIME;
+	hfsplus_delete_inode(inode);
+	mark_inode_dirty(inode);
+	return 0;
+}
+
+int hfsplus_symlink(struct inode *dir, struct dentry *dentry, const char *symname)
+{
+	struct super_block *sb;
+	struct inode *inode;
+	int res;
+
+	sb = dir->i_sb;
+	inode = hfsplus_new_inode(sb, S_IFLNK | S_IRWXUGO);
+	if (!inode)
+		return -ENOSPC;
+
+	res = page_symlink(inode, symname, strlen(symname) + 1);
+	if (res) {
+		inode->i_nlink = 0;
+		iput (inode);
+		return res;
+	}
+
+	mark_inode_dirty(inode);
+	res = hfsplus_create_cat(inode->i_ino, dir, &dentry->d_name, inode);
+
+	if (!res) {
+		d_instantiate(dentry, inode);
+		mark_inode_dirty(inode);
+	}
+
+	return res;
+}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
+int hfsplus_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev)
+#else
+int hfsplus_mknod(struct inode *dir, struct dentry *dentry, int mode, int rdev)
+#endif
+{
+	struct super_block *sb;
+	struct inode *inode;
+	int res;
+
+	sb = dir->i_sb;
+	inode = hfsplus_new_inode(sb, mode);
+	if (!inode)
+		return -ENOSPC;
+
+	res = hfsplus_create_cat(inode->i_ino, dir, &dentry->d_name, inode);
+	if (res) {
+		inode->i_nlink = 0;
+		iput(inode);
+		return res;
+	}
+	init_special_inode(inode, mode, rdev);
+	d_instantiate(dentry, inode);
+	mark_inode_dirty(inode);
+
+	return 0;
+}
+
+int hfsplus_rename(struct inode *old_dir, struct dentry *old_dentry,
+		   struct inode *new_dir, struct dentry *new_dentry)
+{
+	int res;
+
+	/* Unlink destination if it already exists */
+	if (new_dentry->d_inode) {
+		res = hfsplus_unlink(new_dir, new_dentry);
+		if (res)
+			return res;
+	}
+
+	res = hfsplus_rename_cat((u32)(unsigned long)old_dentry->d_fsdata,
+				 old_dir, &old_dentry->d_name,
+				 new_dir, &new_dentry->d_name);
+	if (!res)
+		new_dentry->d_fsdata = old_dentry->d_fsdata;
+	return res;
+}
+
+struct inode_operations hfsplus_dir_inode_operations = {
+	.lookup		= hfsplus_lookup,
+	.create		= hfsplus_create,
+	.link		= hfsplus_link,
+	.unlink		= hfsplus_unlink,
+	.mkdir		= hfsplus_mkdir,
+	.rmdir		= hfsplus_rmdir,
+	.symlink	= hfsplus_symlink,
+	.mknod		= hfsplus_mknod,
+	.rename		= hfsplus_rename,
+};
+
+struct file_operations hfsplus_dir_operations = {
+	.read		= generic_read_dir,
+	.readdir	= hfsplus_readdir,
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+	.llseek		= hfsplus_seek_dir,
+#else
+	.llseek		= generic_file_llseek,
+#endif
+	.release	= hfsplus_dir_release,
+};
diff --git a/fs/hfsplus/extents.c b/fs/hfsplus/extents.c
new file mode 100644
index 00000000000000..0238f9b9be1ff5
--- /dev/null
+++ b/fs/hfsplus/extents.c
@@ -0,0 +1,512 @@
+/*
+ *  linux/fs/hfsplus/extents.c
+ *
+ * Copyright (C) 2001
+ * Brad Boyer (flar@allandria.com)
+ * (C) 2003 Ardis Technologies <roman@ardistech.com>
+ *
+ * Handling of Extents both in catalog and extents overflow trees
+ */
+
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/pagemap.h>
+#include <linux/version.h>
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
+#include <linux/buffer_head.h>
+#endif
+
+#include "hfsplus_fs.h"
+#include "hfsplus_raw.h"
+
+/* Compare two extents keys, returns 0 on same, pos/neg for difference */
+int hfsplus_cmp_ext_key(hfsplus_btree_key *k1, hfsplus_btree_key *k2)
+{
+	u32 k1id, k2id;
+	u32 k1s, k2s;
+
+	k1id = k1->ext.cnid;
+	k2id = k2->ext.cnid;
+	if (k1id != k2id)
+		return be32_to_cpu(k1id) < be32_to_cpu(k2id) ? -1 : 1;
+
+	if (k1->ext.fork_type != k2->ext.fork_type)
+		return k1->ext.fork_type < k2->ext.fork_type ? -1 : 1;
+
+	k1s = k1->ext.start_block;
+	k2s = k2->ext.start_block;
+	if (k1s == k2s)
+		return 0;
+	return be32_to_cpu(k1s) < be32_to_cpu(k2s) ? -1 : 1;
+}
+
+void hfsplus_fill_ext_key(hfsplus_btree_key *key, u32 cnid,
+			  u32 block, u8 type)
+{
+	key->key_len = cpu_to_be16(HFSPLUS_EXT_KEYLEN - 2);
+	key->ext.cnid = cpu_to_be32(cnid);
+	key->ext.start_block = cpu_to_be32(block);
+	key->ext.fork_type = type;
+	key->ext.pad = 0;
+}
+
+static u32 hfsplus_find_extent(hfsplus_extent *extent, u32 off)
+{
+	int i;
+	u32 count;
+
+	for (i = 0; i < 8; extent++, i++) {
+		count = be32_to_cpu(extent->block_count);
+		if (off < count)
+			return be32_to_cpu(extent->start_block) + off;
+		off -= count;
+	}
+	/* panic? */
+	return 0;
+}
+
+static int hfsplus_find_extentry(struct hfsplus_find_data *fd,
+				 hfsplus_extent *extent)
+{
+	int res;
+
+	fd->key->ext.cnid = 0;
+	res = hfsplus_btree_find(fd);
+	if (res && res != -ENOENT)
+		return res;
+	if (fd->key->ext.cnid != fd->search_key->ext.cnid ||
+	    fd->key->ext.fork_type != fd->search_key->ext.fork_type)
+		return -ENOENT;
+	//if (fd->entrylength != ext_key_size)...
+	hfsplus_bnode_readbytes(fd->bnode, extent, fd->entryoffset, fd->entrylength);
+	return 0;
+}
+
+/* Get a block at iblock for inode, possibly allocating if create */
+int hfsplus_get_block(struct inode *inode, sector_t iblock,
+		      struct buffer_head *bh_result, int create)
+{
+	struct super_block *sb;
+	hfsplus_extent_rec ext_entry;
+	struct hfsplus_find_data fd;
+	int err = -EIO;
+	u32 ablock, dblock = 0;
+
+	sb = inode->i_sb;
+
+	/* Convert inode block to disk allocation block */
+	ablock = iblock;
+
+	if (ablock >= HFSPLUS_I(inode).total_blocks) {
+		if (ablock > HFSPLUS_I(inode).total_blocks || !create)
+			return -EIO;
+		if (ablock >= HFSPLUS_I(inode).alloc_blocks) {
+			err = hfsplus_extend_file(inode);
+			if (err)
+				return err;
+		}
+		HFSPLUS_I(inode).mmu_private += sb->s_blocksize;
+		HFSPLUS_I(inode).total_blocks++;
+		mark_inode_dirty(inode);
+	} else
+		create = 0;
+
+	if (ablock < HFSPLUS_I(inode).extent_blocks) {
+		dblock = hfsplus_find_extent(HFSPLUS_I(inode).extents, ablock);
+	} else {
+		hfsplus_find_init(HFSPLUS_SB(sb).ext_tree, &fd);
+		hfsplus_fill_ext_key(fd.search_key, inode->i_ino, ablock, HFSPLUS_IS_RSRC(inode) ?
+				     HFSPLUS_TYPE_RSRC : HFSPLUS_TYPE_DATA);
+		err = hfsplus_find_extentry(&fd, ext_entry);
+		if (!err)
+			dblock = hfsplus_find_extent(ext_entry, ablock -
+						    be32_to_cpu(fd.key->ext.start_block));
+		hfsplus_find_exit(&fd);
+		if (err)
+			return err;
+	}
+
+	if (!dblock)
+		return -EIO;
+	dprint(DBG_EXTENT, "get_block(%lu): %lu - %u\n", inode->i_ino, iblock, dblock);
+
+	map_bh(bh_result, sb, dblock + HFSPLUS_SB(sb).blockoffset);
+	if (create)
+		set_buffer_new(bh_result);
+	return 0;
+}
+
+static void hfsplus_dump_extent(hfsplus_extent *extent)
+{
+	int i;
+
+	dprint(DBG_EXTENT, "   ");
+	for (i = 0; i < 8; i++)
+		dprint(DBG_EXTENT, " %u:%u", be32_to_cpu(extent[i].start_block),
+				 be32_to_cpu(extent[i].block_count));
+	dprint(DBG_EXTENT, "\n");
+}
+
+static int hfsplus_add_extent(hfsplus_extent *extent, u32 offset,
+			      u32 alloc_block, u32 block_count)
+{
+	u32 count, start;
+	int i;
+
+	hfsplus_dump_extent(extent);
+	for (i = 0; i < 8; extent++, i++) {
+		count = be32_to_cpu(extent->block_count);
+		if (offset == count) {
+			start = be32_to_cpu(extent->start_block);
+			if (alloc_block != start + count) {
+				if (++i >= 8)
+					return -ENOSPC;
+				extent++;
+				extent->start_block = cpu_to_be32(alloc_block);
+			} else
+				block_count += count;
+			extent->block_count = cpu_to_be32(block_count);
+			return 0;
+		} else if (offset < count)
+			break;
+		offset -= count;
+	}
+	/* panic? */
+	return -EIO;
+}
+
+void hfsplus_free_blocks(struct super_block *sb, u32 start, u32 count)
+{
+	struct inode *anode;
+	struct buffer_head *bh;
+	int size, blk, off;
+	unsigned long *data, word, m;
+
+	anode = HFSPLUS_SB(sb).alloc_file;
+	size = sb->s_blocksize / sizeof(unsigned long);
+	blk = (start >> sb->s_blocksize_bits) / 8;
+	off = (start & (sb->s_blocksize * 8 - 1)) / 8 / sizeof(unsigned long);
+	m = 1 << (~start & (8 * sizeof(unsigned long) - 1));
+
+	HFSPLUS_SB(sb).free_blocks += count;
+	sb->s_dirt = 1;
+
+	while (count) {
+		bh = hfsplus_getblk(anode, blk);
+		data = (unsigned long *)bh->b_data;
+		do {
+			word = ~be32_to_cpu(data[off]);
+			for (;;) {
+				if (word & m)
+					printk("freeing free block %u\n", start);
+				word |= m;
+				start++;
+				if (!--count) {
+					data[off] = cpu_to_be32(~word);
+					goto done;
+				}
+				if (!(m >>= 1))
+					break;
+			}
+			data[off] = cpu_to_be32(~word);
+			m = 1UL << (8 * sizeof(unsigned long) - 1);
+		} while (++off < size);
+	done:
+		mark_buffer_dirty_inode(bh, anode);
+		brelse(bh);
+		if (++blk >= anode->i_blocks)
+			break;
+		off = 0;
+	}
+	if (count)
+		printk("%u block left to free\n", count);
+}
+
+int hfsplus_free_extents(struct super_block *sb, hfsplus_extent *extent,
+			 u32 offset, u32 block_nr)
+{
+	u32 count, start;
+	int i;
+
+	hfsplus_dump_extent(extent);
+	for (i = 0; i < 8; extent++, i++) {
+		count = be32_to_cpu(extent->block_count);
+		if (offset == count)
+			goto found;
+		else if (offset < count)
+			break;
+		offset -= count;
+	}
+	/* panic? */
+	return -EIO;
+found:
+	for (;;) {
+		start = be32_to_cpu(extent->start_block);
+		if (count <= block_nr) {
+			hfsplus_free_blocks(sb, start, count);
+			extent->block_count = 0;
+			extent->start_block = 0;
+			block_nr -= count;
+		} else {
+			count -= block_nr;
+			hfsplus_free_blocks(sb, start + count, block_nr);
+			extent->block_count = cpu_to_be32(count);
+			block_nr = 0;
+		}
+		if (!block_nr || !i)
+			return 0;
+		i--;
+		extent--;
+		count = be32_to_cpu(extent->block_count);
+	}
+}
+
+int hfsplus_free_fork(struct super_block *sb, u32 cnid, hfsplus_fork_raw *fork, int type)
+{
+	struct hfsplus_find_data fd;
+	hfsplus_extent_rec ext_entry;
+	u32 total_blocks, blocks, start;
+	int res, i;
+
+	total_blocks = be32_to_cpu(fork->total_blocks);
+	if (!total_blocks)
+		return 0;
+
+	blocks = 0;
+	for (i = 0; i < 8; i++)
+		blocks += be32_to_cpu(fork->extents[i].block_count);
+
+	res = hfsplus_free_extents(sb, fork->extents, blocks, blocks);
+	if (res)
+		return res;
+	if (total_blocks == blocks)
+		return 0;
+
+	hfsplus_find_init(HFSPLUS_SB(sb).ext_tree, &fd);
+	do {
+		hfsplus_fill_ext_key(fd.search_key, cnid,
+				     total_blocks, type);
+		res = hfsplus_find_extentry(&fd, ext_entry);
+		if (res)
+			break;
+		start = be32_to_cpu(fd.key->ext.start_block);
+		hfsplus_free_extents(sb, ext_entry,
+				     total_blocks - start,
+				     total_blocks);
+		hfsplus_bnode_remove_rec(&fd);
+		total_blocks = start;
+	} while (total_blocks > blocks);
+	hfsplus_find_exit(&fd);
+
+	return res;
+}
+
+int hfsplus_extend_file(struct inode *inode)
+{
+	struct super_block *sb = inode->i_sb;
+	struct inode *anode = HFSPLUS_SB(sb).alloc_file;
+	struct hfsplus_find_data fd;
+	hfsplus_extent_rec ext_entry;
+	struct buffer_head *bh;
+	u32 blk, blk1, ablock, block_count;
+	unsigned long *data, word, m;
+	int res, size, off, i;
+
+	if (anode->i_size * 8 < HFSPLUS_SB(sb).total_blocks - HFSPLUS_SB(sb).free_blocks + 8) {
+		// extend alloc file
+		BUG();
+	}
+	blk = blk1 = (HFSPLUS_SB(sb).next_alloc >> sb->s_blocksize_bits) / 8;
+	off = (HFSPLUS_SB(sb).next_alloc & (sb->s_blocksize * 8 - 1)) / sizeof(unsigned long) / 8;
+
+	for (;;) {
+		// ignore first off for now...
+		off = 0;
+		bh = hfsplus_getblk(anode, blk);
+		if (blk == anode->i_blocks - 1)
+			size = (HFSPLUS_SB(sb).total_blocks &
+				(sb->s_blocksize * 8 - 1)) /
+				8 / sizeof(unsigned long);
+		else
+			size = sb->s_blocksize / sizeof(unsigned long);
+		data = (unsigned long *)bh->b_data;
+		do {
+			word = be32_to_cpu(data[off]);
+			if (!~word)
+				continue;
+			m = 1UL << (sizeof(unsigned long) * 8 - 1);
+			for (i = 0; m; i++, m >>= 1) {
+				if (word & m)
+					continue;
+				ablock = (blk << sb->s_blocksize_bits) * 8 +
+					off * sizeof(unsigned long) * 8 + i;
+				block_count = 1;
+				word |= m;
+#if 0
+				while ((m >>= 1) && !(word & m)) {
+					block_count++;
+					word |= m;
+				}
+#endif
+				data[off] = cpu_to_be32(word);
+				mark_buffer_dirty_inode(bh, anode);
+				brelse(bh);
+				goto found;
+			}
+		} while (++off < size);
+		brelse(bh);
+		if (++blk >= anode->i_blocks)
+			blk = 0;
+		if (blk == blk1)
+			return -ENOSPC;
+	}
+
+found:
+	dprint(DBG_EXTENT, "extend %lu: %u,%u\n", inode->i_ino, ablock, block_count);
+	if (HFSPLUS_I(inode).alloc_blocks <= HFSPLUS_I(inode).extent_blocks) {
+		if (!HFSPLUS_I(inode).extent_blocks) {
+			dprint(DBG_EXTENT, "first extents\n");
+			/* no extents yet */
+			HFSPLUS_I(inode).extents[0].start_block = cpu_to_be32(ablock);
+			HFSPLUS_I(inode).extents[0].block_count = cpu_to_be32(block_count);
+			res = 0;
+		} else
+			/* try to append to extents in inode */
+			res = hfsplus_add_extent(HFSPLUS_I(inode).extents,
+						 HFSPLUS_I(inode).alloc_blocks,
+						 ablock, block_count);
+		if (!res) {
+			hfsplus_dump_extent(HFSPLUS_I(inode).extents);
+			HFSPLUS_I(inode).extent_blocks += block_count;
+		} else if (res == -ENOSPC) {
+			/* create new extent, so find place to insert it */
+			hfsplus_find_init(HFSPLUS_SB(sb).ext_tree, &fd);
+			hfsplus_fill_ext_key(fd.search_key, inode->i_ino,
+					     HFSPLUS_I(inode).alloc_blocks,
+					     HFSPLUS_IS_RSRC(inode) ?
+					     HFSPLUS_TYPE_RSRC : HFSPLUS_TYPE_DATA);
+			res = hfsplus_find_extentry(&fd, ext_entry);
+			if (res && res != -ENOENT) {
+				hfsplus_find_exit(&fd);
+				goto out;
+			}
+			goto insert_extent;
+		}
+	} else {
+		hfsplus_find_init(HFSPLUS_SB(sb).ext_tree, &fd);
+		hfsplus_fill_ext_key(fd.search_key, inode->i_ino,
+				     HFSPLUS_I(inode).alloc_blocks,
+				     HFSPLUS_IS_RSRC(inode) ?
+				     HFSPLUS_TYPE_RSRC : HFSPLUS_TYPE_DATA);
+		res = hfsplus_find_extentry(&fd, ext_entry);
+		if (res) {
+			hfsplus_find_exit(&fd);
+			goto out;
+		}
+
+		res = hfsplus_add_extent(ext_entry, HFSPLUS_I(inode).alloc_blocks -
+					 be32_to_cpu(fd.key->ext.start_block),
+					 ablock, block_count);
+		if (!res) {
+			hfsplus_dump_extent(ext_entry);
+			hfsplus_bnode_writebytes(fd.bnode, &ext_entry,
+						 fd.entryoffset,
+						 sizeof(ext_entry));
+		} else if (res == -ENOSPC)
+			goto insert_extent;
+		hfsplus_find_exit(&fd);
+	}
+out:
+	if (!res) {
+		HFSPLUS_I(inode).alloc_blocks += block_count;
+		mark_inode_dirty(inode);
+		HFSPLUS_SB(sb).free_blocks -= block_count;
+		sb->s_dirt = 1;
+	}
+	return res;
+
+insert_extent:
+	dprint(DBG_EXTENT, "insert new extent\n");
+	memset(ext_entry, 0, sizeof(ext_entry));
+	ext_entry[0].start_block = cpu_to_be32(ablock);
+	ext_entry[0].block_count = cpu_to_be32(block_count);
+
+	hfsplus_bnode_insert_rec(&fd, ext_entry, sizeof(ext_entry));
+	hfsplus_find_exit(&fd);
+	res = 0;
+	goto out;
+}
+
+void hfsplus_truncate(struct inode *inode)
+{
+	struct super_block *sb = inode->i_sb;
+	struct hfsplus_find_data fd;
+	hfsplus_extent_rec ext_entry;
+	u32 blk_cnt, start;
+	int res;
+
+	dprint(DBG_INODE, "truncate: %lu, %Lu -> %Lu\n", inode->i_ino,
+	       (long long)HFSPLUS_I(inode).mmu_private, inode->i_size);
+	if (inode->i_size == HFSPLUS_I(inode).mmu_private)
+		return;
+	if (inode->i_size > HFSPLUS_I(inode).mmu_private) {
+		struct address_space *mapping = inode->i_mapping;
+		struct page *page;
+		u32 size = inode->i_size - 1;
+		int res;
+
+		page = grab_cache_page(mapping, size >> PAGE_CACHE_SHIFT);
+		if (!page)
+			return;
+		size &= PAGE_CACHE_SIZE - 1;
+		size++;
+		res = mapping->a_ops->prepare_write(NULL, page, size, size);
+		if (!res)
+			res = mapping->a_ops->commit_write(NULL, page, size, size);
+		if (res)
+			inode->i_size = HFSPLUS_I(inode).mmu_private;
+		unlock_page(page);
+		page_cache_release(page);
+		mark_inode_dirty(inode);
+		return;
+	}
+	blk_cnt = (inode->i_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
+
+	while (1) {
+		if (HFSPLUS_I(inode).alloc_blocks <= HFSPLUS_I(inode).extent_blocks) {
+			hfsplus_free_extents(sb, HFSPLUS_I(inode).extents,
+					     HFSPLUS_I(inode).alloc_blocks,
+					     HFSPLUS_I(inode).alloc_blocks - blk_cnt);
+			hfsplus_dump_extent(HFSPLUS_I(inode).extents);
+			HFSPLUS_I(inode).extent_blocks = blk_cnt;
+			break;
+		}
+		hfsplus_find_init(HFSPLUS_SB(sb).ext_tree, &fd);
+		hfsplus_fill_ext_key(fd.search_key, inode->i_ino,
+				     HFSPLUS_I(inode).alloc_blocks,
+				     HFSPLUS_IS_RSRC(inode) ?
+				     HFSPLUS_TYPE_RSRC : HFSPLUS_TYPE_DATA);
+		res = hfsplus_find_extentry(&fd, ext_entry);
+		if (res) {
+			hfsplus_find_exit(&fd);
+			break;
+		}
+		start = be32_to_cpu(fd.key->ext.start_block);
+		hfsplus_free_extents(sb, ext_entry,
+				     HFSPLUS_I(inode).alloc_blocks - start,
+				     HFSPLUS_I(inode).alloc_blocks - blk_cnt);
+		hfsplus_dump_extent(ext_entry);
+		if (blk_cnt > start) {
+			hfsplus_bnode_writebytes(fd.bnode, &ext_entry,
+						 fd.entryoffset,
+						 sizeof(ext_entry));
+			hfsplus_find_exit(&fd);
+			break;
+		}
+		HFSPLUS_I(inode).alloc_blocks = start;
+		hfsplus_bnode_remove_rec(&fd);
+		hfsplus_find_exit(&fd);
+	}
+	HFSPLUS_I(inode).mmu_private = inode->i_size;
+	HFSPLUS_I(inode).alloc_blocks = HFSPLUS_I(inode).total_blocks = blk_cnt;
+}
diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
new file mode 100644
index 00000000000000..225441977f369a
--- /dev/null
+++ b/fs/hfsplus/hfsplus_fs.h
@@ -0,0 +1,368 @@
+/*
+ *  linux/include/linux/hfsplus_fs.h
+ *
+ * Copyright (C) 1999
+ * Brad Boyer (flar@pants.nu)
+ * (C) 2003 Ardis Technologies <roman@ardistech.com>
+ *
+ */
+
+#ifndef _LINUX_HFSPLUS_FS_H
+#define _LINUX_HFSPLUS_FS_H
+
+#include <linux/fs.h>
+#include <linux/version.h>
+#include "hfsplus_raw.h"
+
+#define DBG_BNODE_REFS	0x00000001
+#define DBG_BNODE_MOD	0x00000002
+#define DBG_CAT_MOD	0x00000004
+#define DBG_INODE	0x00000008
+#define DBG_SUPER	0x00000010
+#define DBG_EXTENT	0x00000020
+
+//#define DBG_MASK	(DBG_EXTENT|DBG_INODE|DBG_BNODE_MOD)
+//#define DBG_MASK	(DBG_BNODE_MOD|DBG_CAT_MOD)
+//#define DBG_MASK	(DBG_BNODE_REFS|DBG_INODE|DBG_BNODE_MOD)
+#define DBG_MASK	(0)
+
+#define dprint(flg, fmt, args...) \
+	if (flg & DBG_MASK) printk(fmt , ## args)
+
+/* Runtime config options */
+#define HFSPLUS_CASE_ASIS      0
+#define HFSPLUS_CASE_LOWER     1
+
+#define HFSPLUS_FORK_RAW       0
+#define HFSPLUS_FORK_CAP       1
+#define HFSPLUS_FORK_DOUBLE    2
+#define HFSPLUS_FORK_NETATALK  3
+
+#define HFSPLUS_NAMES_TRIVIAL  0
+#define HFSPLUS_NAMES_CAP      1
+#define HFSPLUS_NAMES_NETATALK 2
+#define HFSPLUS_NAMES_7BIT     3
+
+#define HFSPLUS_DEF_CR_TYPE    0x3F3F3F3F  /* '????' */
+
+#define HFSPLUS_TYPE_DATA 0x00
+#define HFSPLUS_TYPE_RSRC 0xFF
+
+typedef int (*btree_keycmp)(hfsplus_btree_key *, hfsplus_btree_key *);
+
+#define NODE_HASH_SIZE	256
+
+/* An HFS+ BTree held in memory */
+typedef struct hfsplus_btree {
+	struct super_block *sb;
+	struct inode *inode;
+	btree_keycmp keycmp;
+
+	u32 cnid;
+	u32 root;
+	u32 leaf_count;
+	u32 leaf_head;
+	u32 leaf_tail;
+	u32 node_count;
+	u32 free_nodes;
+	u32 attributes;
+
+	unsigned int node_size;
+	unsigned int node_size_shift;
+	unsigned int max_key_len;
+	unsigned int depth;
+
+	//unsigned int map1_size, map_size;
+	struct semaphore tree_lock;
+
+	unsigned int pages_per_bnode;
+	spinlock_t hash_lock;
+	struct hfsplus_bnode *node_hash[NODE_HASH_SIZE];
+	int node_hash_cnt;
+} hfsplus_btree;
+
+struct page;
+
+/* An HFS+ BTree node in memory */
+typedef struct hfsplus_bnode {
+	struct hfsplus_btree *tree;
+
+	u32 prev;
+	u32 this;
+	u32 next;
+	u32 parent;
+
+	u16 num_recs;
+	u8 kind;
+	u8 height;
+
+	struct hfsplus_bnode *next_hash;
+	unsigned long flags;
+	wait_queue_head_t lock_wq;
+	atomic_t refcnt;
+	unsigned int page_offset;
+	struct page *page[0];
+} hfsplus_bnode;
+
+#define HFSPLUS_BNODE_LOCK	0
+#define HFSPLUS_BNODE_ERROR	1
+#define HFSPLUS_BNODE_NEW	2
+#define HFSPLUS_BNODE_DIRTY	3
+#define HFSPLUS_BNODE_DELETED	4
+
+/*
+ * HFS+ superblock info (built from Volume Header on disk)
+ */
+
+struct hfsplus_vh;
+struct hfsplus_btree;
+
+struct hfsplus_sb_info {
+	struct buffer_head *s_vhbh;
+	struct hfsplus_vh *s_vhdr;
+	struct hfsplus_btree *ext_tree;
+	struct hfsplus_btree *cat_tree;
+	struct hfsplus_btree *attr_tree;
+	struct inode *alloc_file;
+	struct inode *hidden_dir;
+
+	/* Runtime variables */
+	u32 blockoffset;
+	u32 sect_count;
+	//int a2b_shift;
+
+	/* Stuff in host order from Vol Header */
+	u32 total_blocks;
+	u32 free_blocks;
+	u32 next_alloc;
+	u32 next_cnid;
+	u32 file_count;
+	u32 folder_count;
+
+	/* Config options */
+	u32 creator;
+	u32 type;
+
+	int charcase;
+	int fork;
+	int namemap;
+
+	umode_t umask;
+	uid_t uid;
+	gid_t gid;
+
+	unsigned long flags;
+
+	atomic_t inode_cnt;
+	u32 last_inode_cnt;
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+	struct list_head rsrc_inodes;
+#else
+	struct hlist_head rsrc_inodes;
+#endif
+};
+
+#define HFSPLUS_SB_WRITEBACKUP	0x0001
+
+
+struct hfsplus_inode_info {
+	/* Device number in hfsplus_permissions in catalog */
+	u32 dev;
+	/* Allocation extents from catlog record or volume header */
+	hfsplus_extent_rec extents;
+	u32 total_blocks, extent_blocks, alloc_blocks;
+	atomic_t opencnt;
+
+	struct inode *rsrc_inode;
+	unsigned long flags;
+
+	struct list_head open_dir_list;
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+	unsigned long mmu_private;
+#else
+	loff_t mmu_private;
+	struct inode vfs_inode;
+#endif
+};
+
+#define HFSPLUS_FLG_RSRC	0x0001
+#define HFSPLUS_FLG_DIRTYMODE	0x0002
+
+#define HFSPLUS_IS_DATA(inode)   (!(HFSPLUS_I(inode).flags & HFSPLUS_FLG_RSRC))
+#define HFSPLUS_IS_RSRC(inode)   (HFSPLUS_I(inode).flags & HFSPLUS_FLG_RSRC)
+
+struct hfsplus_find_data {
+	/* filled by caller */
+	hfsplus_btree_key *search_key;
+	hfsplus_btree_key *key;
+	/* filled by find */
+	hfsplus_btree *tree;
+	hfsplus_bnode *bnode;
+	/* filled by findrec */
+	int record, exact;
+	int keyoffset, keylength;
+	int entryoffset, entrylength;
+};
+
+struct hfsplus_readdir_data {
+	struct list_head list;
+	struct file *file;
+	hfsplus_cat_key key;
+};
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+typedef long sector_t;
+#endif
+
+/*
+ * Functions in any *.c used in other files
+ */
+
+/* bfind.c */
+void hfsplus_find_rec(hfsplus_bnode *, struct hfsplus_find_data *);
+int hfsplus_btree_find(struct hfsplus_find_data *);
+int hfsplus_btree_find_entry(struct hfsplus_find_data *,
+			     void *, int);
+int hfsplus_btree_move(struct hfsplus_find_data *, int);
+int hfsplus_find_init(hfsplus_btree *, struct hfsplus_find_data *);
+void hfsplus_find_exit(struct hfsplus_find_data *);
+
+/* bnode.c */
+struct buffer_head *hfsplus_getblk(struct inode *, unsigned long);
+hfsplus_bnode *__hfsplus_find_bnode(hfsplus_btree *, u32);
+void __hfsplus_bnode_remove(hfsplus_bnode *);
+hfsplus_bnode *hfsplus_create_bnode(hfsplus_btree *, u32);
+hfsplus_bnode *hfsplus_find_bnode(hfsplus_btree *, u32);
+void hfsplus_get_bnode(hfsplus_bnode *);
+void hfsplus_put_bnode(hfsplus_bnode *);
+void hfsplus_bnode_free(hfsplus_bnode *);
+void hfsplus_bnode_readbytes(hfsplus_bnode *, void *, unsigned long, unsigned long);
+u16 hfsplus_bnode_read_u16(hfsplus_bnode *, unsigned long);
+void hfsplus_bnode_writebytes(hfsplus_bnode *, void *, unsigned long, unsigned long);
+void hfsplus_bnode_write_u16(hfsplus_bnode *, unsigned long, u16);
+void hfsplus_bnode_copybytes(hfsplus_bnode *, unsigned long,
+			     hfsplus_bnode *, unsigned long, unsigned long);
+void hfsplus_bnode_movebytes(hfsplus_bnode *, unsigned long, unsigned long, unsigned long);
+int hfsplus_bnode_insert_rec(struct hfsplus_find_data *, void *, int);
+int hfsplus_bnode_remove_rec(struct hfsplus_find_data *);
+
+/* brec.c */
+u16 hfsplus_brec_lenoff(hfsplus_bnode *, u16, u16 *);
+u16 hfsplus_brec_keylen(hfsplus_bnode *, u16);
+
+/* btree.c */
+hfsplus_btree *hfsplus_open_btree(struct super_block *, u32);
+void hfsplus_close_btree(struct hfsplus_btree *);
+void hfsplus_write_btree(struct hfsplus_btree *);
+hfsplus_bnode *hfsplus_btree_alloc_node(hfsplus_btree *);
+void hfsplus_btree_remove_node(hfsplus_bnode *);
+void hfsplus_btree_free_node(hfsplus_bnode *);
+
+/* catalog.c */
+int hfsplus_cmp_cat_key(hfsplus_btree_key *, hfsplus_btree_key *);
+void hfsplus_fill_cat_key(hfsplus_btree_key *, u32, struct qstr *);
+int hfsplus_find_cat(struct super_block *, unsigned long, struct hfsplus_find_data *);
+int hfsplus_create_cat(u32, struct inode *, struct qstr *, struct inode *);
+int hfsplus_delete_cat(u32, struct inode *, struct qstr *);
+int hfsplus_rename_cat(u32, struct inode *, struct qstr *,
+		       struct inode *, struct qstr *);
+
+/* extents.c */
+int hfsplus_cmp_ext_key(hfsplus_btree_key *, hfsplus_btree_key *);
+void hfsplus_fill_ext_key(hfsplus_btree_key *, u32, u32, u8);
+int hfsplus_get_block(struct inode *, sector_t, struct buffer_head *, int);
+int hfsplus_free_fork(struct super_block *, u32, hfsplus_fork_raw *, int);
+int hfsplus_extend_file(struct inode *);
+void hfsplus_truncate(struct inode *);
+
+/* inode.c */
+void hfsplus_inode_read_fork(struct inode *, hfsplus_fork_raw *);
+void hfsplus_inode_write_fork(struct inode *, hfsplus_fork_raw *);
+int hfsplus_cat_read_inode(struct inode *, struct hfsplus_find_data *);
+void hfsplus_cat_write_inode(struct inode *);
+struct inode *hfsplus_new_inode(struct super_block *, int);
+void hfsplus_delete_inode(struct inode *);
+
+extern struct address_space_operations hfsplus_btree_aops;
+
+/* options.c */
+int parse_options(char *, struct hfsplus_sb_info *);
+void fill_defaults(struct hfsplus_sb_info *);
+void fill_current(struct hfsplus_sb_info *, struct hfsplus_sb_info *);
+
+/* tables.c */
+extern u16 case_fold_table[];
+
+/* unicode.c */
+int hfsplus_unistrcmp(const hfsplus_unistr *, const hfsplus_unistr *);
+int hfsplus_uni2asc(const hfsplus_unistr *, char *, int *);
+int hfsplus_asc2uni(hfsplus_unistr *, const char *, int);
+
+/* wrapper.c */
+int hfsplus_read_wrapper(struct super_block *);
+
+/* access macros */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+#define HFSPLUS_SB(super)        (*(struct hfsplus_sb_info *)&(super)->u)
+#define HFSPLUS_I(inode)         (*(struct hfsplus_inode_info *)&(inode)->u)
+#else
+/*
+static inline struct hfsplus_sb_info *HFSPLUS_SB(struct super_block *sb)
+{
+	return sb->s_fs_info;
+}
+static inline struct hfsplus_inode_info *HFSPLUS_I(struct inode *inode)
+{
+	return list_entry(inode, struct hfsplus_inode_info, vfs_inode);
+}
+*/
+#define HFSPLUS_SB(super)	(*(struct hfsplus_sb_info *)(super)->s_fs_info)
+#define HFSPLUS_I(inode)	(*list_entry(inode, struct hfsplus_inode_info, vfs_inode))
+#endif
+
+#if 1
+#define hfsplus_kmap(p)		({ struct page *__p = (p); kmap(__p); })
+#define hfsplus_kunmap(p)	({ struct page *__p = (p); kunmap(__p); __p; })
+#else
+#define hfsplus_kmap(p)		kmap(p)
+#define hfsplus_kunmap(p)	kunmap(p)
+#endif
+
+/* time macros */
+#define __hfsp_mt2ut(t)		(be32_to_cpu(t) - 2082844800U)
+#define __hfsp_ut2mt(t)		(cpu_to_be32(t + 2082844800U))
+
+/* compatibility */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+#define PageUptodate(page)	Page_Uptodate(page)
+#define wait_on_page_locked(page) wait_on_page(page)
+#define get_seconds()		CURRENT_TIME
+#define page_symlink(i,n,l)		block_symlink(i,n,l)
+#define map_bh(bh, sb, block) ({				\
+	bh->b_dev = kdev_t_to_nr(sb->s_dev);			\
+	bh->b_blocknr = block;					\
+	bh->b_state |= (1UL << BH_Mapped);			\
+})
+#define set_buffer_new(bh)	(bh->b_state |= (1UL << BH_New))
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,21)
+#define new_inode(sb) ({					\
+	struct inode *inode = get_empty_inode();		\
+	if (inode) {						\
+		inode->i_sb = sb;				\
+		inode->i_dev = sb->s_dev;			\
+		inode->i_blkbits = sb->s_blocksize_bits;	\
+	}							\
+	inode;							\
+})
+#endif
+#define	hfsp_mt2ut(t)		__hfsp_mt2ut(t)
+#define hfsp_ut2mt(t)		__hfsp_ut2mt(t)
+#define hfsp_now2mt()		__hfsp_ut2mt(CURRENT_TIME)
+#else
+#define hfsp_mt2ut(t)		(struct timespec){ .tv_sec = __hfsp_mt2ut(t) }
+#define hfsp_ut2mt(t)		__hfsp_ut2mt((t).tv_sec)
+#define hfsp_now2mt()		__hfsp_ut2mt(get_seconds())
+#endif
+
+#endif
diff --git a/fs/hfsplus/hfsplus_raw.h b/fs/hfsplus/hfsplus_raw.h
new file mode 100644
index 00000000000000..ef49f5376e78dd
--- /dev/null
+++ b/fs/hfsplus/hfsplus_raw.h
@@ -0,0 +1,321 @@
+/*
+ *  linux/include/linux/hfsplus_raw.h
+ *
+ * Copyright (C) 1999
+ * Brad Boyer (flar@pants.nu)
+ * (C) 2003 Ardis Technologies <roman@ardistech.com>
+ *
+ * Format of structures on disk
+ * Information taken from Apple Technote #1150 (HFS Plus Volume Format)
+ *
+ */
+
+#ifndef _LINUX_HFSPLUS_RAW_H
+#define _LINUX_HFSPLUS_RAW_H
+
+#include <linux/types.h>
+
+#define __packed __attribute__ ((packed))
+
+/* Some constants */
+#define HFSPLUS_SECTOR_SIZE        512
+#define HFSPLUS_VOLHEAD_SECTOR       2
+#define HFSPLUS_VOLHEAD_SIG     0x482b
+#define HFSPLUS_SUPER_MAGIC     0x482b
+#define HFSPLUS_CURRENT_VERSION      4
+
+#define HFSP_WRAP_MAGIC         0x4244
+#define HFSP_WRAP_ATTRIB_SLOCK  0x8000
+#define HFSP_WRAP_ATTRIB_SPARED 0x0200
+
+#define HFSP_WRAPOFF_SIG          0x00
+#define HFSP_WRAPOFF_ATTRIB       0x0A
+#define HFSP_WRAPOFF_ABLKSIZE     0x14
+#define HFSP_WRAPOFF_ABLKSTART    0x1C
+#define HFSP_WRAPOFF_EMBEDSIG     0x7C
+#define HFSP_WRAPOFF_EMBEDEXT     0x7E
+
+#define HFSP_HIDDENDIR_NAME	"\xe2\x90\x80\xe2\x90\x80\xe2\x90\x80\xe2\x90\x80HFS+ Private Data"
+
+#define HFSP_HARDLINK_TYPE	0x686c6e6b	/* 'hlnk' */
+#define HFSP_HFSPLUS_CREATOR	0x6866732b	/* 'hfs+' */
+
+#define HFSP_MOUNT_VERSION	0x482b4c78	/* 'H+Lx' */
+
+/* Structures used on disk */
+
+typedef u32 hfsplus_cnid;
+typedef u16 hfsplus_unichr;
+
+/* A "string" as used in filenames, etc. */
+typedef struct {
+	u16 length;
+	hfsplus_unichr unicode[255];
+} __packed hfsplus_unistr;
+
+#define HFSPLUS_MAX_STRLEN 255
+
+/* POSIX permissions */
+typedef struct {
+	u32 owner;
+	u32 group;
+	u32 mode;
+	u32 dev;
+} __packed hfsplus_perm;
+
+/* A single contiguous area of a file */
+typedef struct {
+	u32 start_block;
+	u32 block_count;
+} __packed hfsplus_extent;
+typedef hfsplus_extent hfsplus_extent_rec[8];
+
+/* Information for a "Fork" in a file */
+typedef struct {
+	u64 total_size;
+	u32 clump_size;
+	u32 total_blocks;
+	hfsplus_extent_rec extents;
+} __packed hfsplus_fork_raw;
+
+/* HFS+ Volume Header */
+typedef struct hfsplus_vh {
+	u16 signature;
+	u16 version;
+	u32 attributes;
+	u32 last_mount_vers;
+	u32 reserved;
+
+	u32 create_date;
+	u32 modify_date;
+	u32 backup_date;
+	u32 checked_date;
+
+	u32 file_count;
+	u32 folder_count;
+
+	u32 blocksize;
+	u32 total_blocks;
+	u32 free_blocks;
+
+	u32 next_alloc;
+	u32 rsrc_clump_sz;
+	u32 data_clump_sz;
+	hfsplus_cnid next_cnid;
+
+	u32 write_count;
+	u64 encodings_bmp;
+
+	u8 finder_info[32];
+
+	hfsplus_fork_raw alloc_file;
+	hfsplus_fork_raw ext_file;
+	hfsplus_fork_raw cat_file;
+	hfsplus_fork_raw attr_file;
+	hfsplus_fork_raw start_file;
+} __packed hfsplus_vh;
+
+/* HFS+ volume attributes */
+#define HFSPLUS_VOL_UNMNT     (1 << 8)
+#define HFSPLUS_VOL_SPARE_BLK (1 << 9)
+#define HFSPLUS_VOL_NOCACHE   (1 << 10)
+#define HFSPLUS_VOL_INCNSTNT  (1 << 11)
+#define HFSPLUS_VOL_SOFTLOCK  (1 << 15)
+
+/* HFS+ BTree node descriptor */
+typedef struct {
+	u32 next;
+	u32 prev;
+	s8 kind;
+	u8 height;
+	u16 num_rec;
+	u16 reserved;
+} __packed hfsplus_btree_node_desc;
+
+/* HFS+ BTree node types */
+#define HFSPLUS_NODE_NDX  0x00
+#define HFSPLUS_NODE_HEAD 0x01
+#define HFSPLUS_NODE_MAP  0x02
+#define HFSPLUS_NODE_LEAF 0xFF
+
+/* HFS+ BTree header */
+typedef struct {
+	u16 depth;
+	u32 root;
+	u32 leaf_count;
+	u32 leaf_head;
+	u32 leaf_tail;
+	u16 node_size;
+	u16 max_key_len;
+	u32 node_count;
+	u32 free_nodes;
+	u16 reserved1;
+	u32 clump_size;
+	u8 btree_type;
+	u8 reserved2;
+	u32 attributes;
+	u32 reserved3[16];
+} __packed hfsplus_btree_head;
+
+/* BTree attributes */
+#define HFSPLUS_TREE_BIGKEYS         2
+#define HFSPLUS_TREE_VAR_NDXKEY_SIZE 4
+
+/* HFS+ BTree misc info */
+#define HFSPLUS_TREE_HEAD 0
+#define HFSPLUS_NODE_MXSZ 32768
+
+/* Some special File ID numbers (stolen from hfs.h) */
+#define HFSPLUS_POR_CNID		1	/* Parent Of the Root */
+#define HFSPLUS_ROOT_CNID		2	/* ROOT directory */
+#define HFSPLUS_EXT_CNID		3	/* EXTents B-tree */
+#define HFSPLUS_CAT_CNID		4	/* CATalog B-tree */
+#define HFSPLUS_BAD_CNID		5	/* BAD blocks file */
+#define HFSPLUS_ALLOC_CNID		6	/* ALLOCation file */
+#define HFSPLUS_START_CNID		7	/* STARTup file */
+#define HFSPLUS_ATTR_CNID		8	/* ATTRibutes file */
+#define HFSPLUS_EXCH_CNID		15	/* ExchangeFiles temp id */
+#define HFSPLUS_FIRSTUSER_CNID		16	/* first available user id */
+
+/* HFS+ catalog entry key */
+typedef struct {
+	u16 key_len;
+	hfsplus_cnid parent;
+	hfsplus_unistr name;
+} __packed hfsplus_cat_key;
+
+
+/* Structs from hfs.h */
+typedef struct {
+	u16 v;
+	u16 h;
+} __packed hfsp_point;
+
+typedef struct {
+	u16 top;
+	u16 left;
+	u16 bottom;
+	u16 right;
+} __packed hfsp_rect;
+
+
+/* HFS directory info (stolen from hfs.h */
+typedef struct {
+	hfsp_rect frRect;
+	u16 frFlags;
+	hfsp_point frLocation;
+	u16 frView;
+} __packed DInfo;
+
+typedef struct {
+	hfsp_point frScroll;
+	u32 frOpenChain;
+	u16 frUnused;
+	u16 frComment;
+	u32 frPutAway;
+} __packed DXInfo;
+
+/* HFS+ folder data (part of an hfsplus_cat_entry) */
+typedef struct {
+	s16 type;
+	u16 flags;
+	u32 valence;
+	hfsplus_cnid id;
+	u32 create_date;
+	u32 content_mod_date;
+	u32 attribute_mod_date;
+	u32 access_date;
+	u32 backup_date;
+	hfsplus_perm permissions;
+	DInfo user_info;
+	DXInfo finder_info;
+	u32 text_encoding;
+	u32 reserved;
+} __packed hfsplus_cat_folder;
+
+/* HFS file info (stolen from hfs.h) */
+typedef struct {
+	u32 fdType;
+	u32 fdCreator;
+	u16 fdFlags;
+	hfsp_point fdLocation;
+	u16 fdFldr;
+} __packed FInfo;
+
+typedef struct {
+	u16 fdIconID;
+	u8 fdUnused[8];
+	u16 fdComment;
+	u32 fdPutAway;
+} __packed FXInfo;
+
+/* HFS+ file data (part of a cat_entry) */
+typedef struct {
+	s16 type;
+	u16 flags;
+	u32 reserved1;
+	hfsplus_cnid id;
+	u32 create_date;
+	u32 content_mod_date;
+	u32 attribute_mod_date;
+	u32 access_date;
+	u32 backup_date;
+	hfsplus_perm permissions;
+	FInfo user_info;
+	FXInfo finder_info;
+	u32 text_encoding;
+	u32 reserved2;
+
+	hfsplus_fork_raw data_fork;
+	hfsplus_fork_raw rsrc_fork;
+} __packed hfsplus_cat_file;
+
+/* File attribute bits */
+#define kHFSFileLockedBit       0x0000
+#define kHFSFileLockedMask      0x0001
+#define kHFSThreadExistsBit     0x0001
+#define kHFSThreadExistsMask    0x0002
+
+/* HFS+ catalog thread (part of a cat_entry) */
+typedef struct {
+	s16 type;
+	s16 reserved;
+	hfsplus_cnid parentID;
+	hfsplus_unistr nodeName;
+} __packed hfsplus_cat_thread;
+
+#define HFSPLUS_MIN_THREAD_SZ 10
+
+/* A data record in the catalog tree */
+typedef union {
+	s16 type;
+	hfsplus_cat_folder folder;
+	hfsplus_cat_file file;
+	hfsplus_cat_thread thread;
+} __packed hfsplus_cat_entry;
+
+/* HFS+ catalog entry type */
+#define HFSPLUS_FOLDER         0x0001
+#define HFSPLUS_FILE           0x0002
+#define HFSPLUS_FOLDER_THREAD  0x0003
+#define HFSPLUS_FILE_THREAD    0x0004
+
+/* HFS+ extents tree key */
+typedef struct {
+	u16 key_len;
+	u8 fork_type;
+	u8 pad;
+	hfsplus_cnid cnid;
+	u32 start_block;
+} __packed hfsplus_ext_key;
+
+#define HFSPLUS_EXT_KEYLEN 12
+
+/* HFS+ generic BTree key */
+typedef union {
+	u16 key_len;
+	hfsplus_cat_key cat;
+	hfsplus_ext_key ext;
+} __packed hfsplus_btree_key;
+
+#endif
diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
new file mode 100644
index 00000000000000..14d5d0380e6391
--- /dev/null
+++ b/fs/hfsplus/inode.c
@@ -0,0 +1,479 @@
+/*
+ *  linux/fs/hfsplus/inode.c
+ *
+ * Copyright (C) 2001
+ * Brad Boyer (flar@allandria.com)
+ * (C) 2003 Ardis Technologies <roman@ardistech.com>
+ *
+ * Inode handling routines
+ */
+
+#include <linux/mm.h>
+#include <linux/fs.h>
+#include <linux/pagemap.h>
+#include <linux/version.h>
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
+#include <linux/buffer_head.h>
+#endif
+
+#include "hfsplus_fs.h"
+#include "hfsplus_raw.h"
+
+static int hfsplus_readpage(struct file *file, struct page *page)
+{
+	//printk("readpage: %lu\n", page->index);
+	return block_read_full_page(page, hfsplus_get_block);
+}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
+static int hfsplus_writepage(struct page *page, struct writeback_control *wbc)
+{
+	//printk("writepage: %lu\n", page->index);
+	return block_write_full_page(page, hfsplus_get_block, wbc);
+}
+#else
+static int hfsplus_writepage(struct page *page)
+{
+	//printk("writepage: %lu\n", page->index);
+	return block_write_full_page(page, hfsplus_get_block);
+}
+#endif
+
+static int hfsplus_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)
+{
+	return cont_prepare_write(page, from, to, hfsplus_get_block,
+		&HFSPLUS_I(page->mapping->host).mmu_private);
+}
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+static int hfsplus_bmap(struct address_space *mapping, long block)
+#else
+static sector_t hfsplus_bmap(struct address_space *mapping, sector_t block)
+#endif
+{
+	return generic_block_bmap(mapping, block, hfsplus_get_block);
+}
+
+int hfsplus_releasepage(struct page *page, int mask)
+{
+	struct inode *inode = page->mapping->host;
+	struct super_block *sb = inode->i_sb;
+	struct hfsplus_btree *tree;
+	hfsplus_bnode *node;
+	u32 nidx;
+	int i, res = 1;
+
+	switch (inode->i_ino) {
+	case HFSPLUS_EXT_CNID:
+		tree = HFSPLUS_SB(sb).ext_tree;
+		break;
+	case HFSPLUS_CAT_CNID:
+		tree = HFSPLUS_SB(sb).cat_tree;
+		break;
+	case HFSPLUS_ATTR_CNID:
+		tree = HFSPLUS_SB(sb).attr_tree;
+		break;
+	default:
+		BUG();
+		return 0;
+	}
+	if (tree->node_size >= PAGE_CACHE_SIZE) {
+		nidx = page->index >> (tree->node_size_shift - PAGE_CACHE_SHIFT);
+		spin_lock(&tree->hash_lock);
+		node = __hfsplus_find_bnode(tree, nidx);
+		if (!node)
+			;
+		else if (atomic_read(&node->refcnt))
+			res = 0;
+		else for (i = 0; i < tree->pages_per_bnode; i++) {
+			if (PageActive(node->page[i])) {
+				res = 0;
+				break;
+			}
+		}
+		if (res && node) {
+			__hfsplus_bnode_remove(node);
+			hfsplus_bnode_free(node);
+		}
+		spin_unlock(&tree->hash_lock);
+	} else {
+		nidx = page->index >> (PAGE_CACHE_SHIFT - tree->node_size_shift);
+		i = 1 << (PAGE_CACHE_SHIFT - tree->node_size_shift);
+		spin_lock(&tree->hash_lock);
+		do {
+			node = __hfsplus_find_bnode(tree, nidx++);
+			if (!node)
+				continue;
+			if (atomic_read(&node->refcnt)) {
+				res = 0;
+				break;
+			}
+			__hfsplus_bnode_remove(node);
+			hfsplus_bnode_free(node);
+		} while (--i);
+		spin_unlock(&tree->hash_lock);
+	}
+	//printk("releasepage: %lu,%x = %d\n", page->index, mask, res);
+	return res;
+}
+
+struct address_space_operations hfsplus_btree_aops = {
+	.readpage	= hfsplus_readpage,
+	.writepage	= hfsplus_writepage,
+	.sync_page	= block_sync_page,
+	.prepare_write	= hfsplus_prepare_write,
+	.commit_write	= generic_commit_write,
+	.bmap		= hfsplus_bmap,
+	.releasepage	= hfsplus_releasepage,
+};
+
+struct address_space_operations hfsplus_aops = {
+	.readpage	= hfsplus_readpage,
+	.writepage	= hfsplus_writepage,
+	.sync_page	= block_sync_page,
+	.prepare_write	= hfsplus_prepare_write,
+	.commit_write	= generic_commit_write,
+	.bmap		= hfsplus_bmap,
+};
+
+static struct dentry *hfsplus_file_lookup(struct inode *dir, struct dentry *dentry)
+{
+	struct hfsplus_find_data fd;
+	struct super_block *sb = dir->i_sb;
+	struct inode *inode = NULL;
+	int err;
+
+	if (HFSPLUS_IS_RSRC(dir) || strcmp(dentry->d_name.name, "rsrc"))
+		goto out;
+
+	inode = HFSPLUS_I(dir).rsrc_inode;
+	if (inode)
+		goto out;
+
+	inode = new_inode(sb);
+	if (!inode)
+		return ERR_PTR(-ENOMEM);
+
+	inode->i_ino = dir->i_ino;
+	HFSPLUS_I(inode).flags = HFSPLUS_FLG_RSRC;
+
+	hfsplus_find_init(HFSPLUS_SB(sb).cat_tree, &fd);
+	err = hfsplus_find_cat(sb, dir->i_ino, &fd);
+	if (!err)
+		err = hfsplus_cat_read_inode(inode, &fd);
+	hfsplus_find_exit(&fd);
+	if (err) {
+		iput(inode);
+		return ERR_PTR(err);
+	}
+	HFSPLUS_I(inode).rsrc_inode = dir;
+	HFSPLUS_I(dir).rsrc_inode = inode;
+	igrab(dir);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+	list_add(&inode->i_hash, &HFSPLUS_SB(sb).rsrc_inodes);
+#else
+	hlist_add_head(&inode->i_hash, &HFSPLUS_SB(sb).rsrc_inodes);
+#endif
+	mark_inode_dirty(inode);
+	{
+	void hfsplus_inode_check(struct super_block *sb);
+	atomic_inc(&HFSPLUS_SB(sb).inode_cnt);
+	hfsplus_inode_check(sb);
+	}
+out:
+	d_add(dentry, inode);
+	return NULL;
+}
+
+static void hfsplus_get_perms(struct inode *inode, hfsplus_perm *perms, int dir)
+{
+	struct super_block *sb = inode->i_sb;
+	int mode;
+
+	mode = be32_to_cpu(perms->mode) & 0xffff;
+
+	inode->i_uid = be32_to_cpu(perms->owner);
+	if (!inode->i_uid && !mode)
+		inode->i_uid = HFSPLUS_SB(sb).uid;
+
+	inode->i_gid = be32_to_cpu(perms->group);
+	if (!inode->i_gid && !mode)
+		inode->i_gid = HFSPLUS_SB(sb).gid;
+
+	if (dir) {
+		mode = mode ? (mode & S_IALLUGO) :
+			(S_IRWXUGO & ~(HFSPLUS_SB(sb).umask));
+		mode |= S_IFDIR;
+	} else if (!mode)
+		mode = S_IFREG | ((S_IRUGO|S_IWUGO) &
+			~(HFSPLUS_SB(sb).umask));
+	inode->i_mode = mode;
+}
+
+static void hfsplus_set_perms(struct inode *inode, hfsplus_perm *perms)
+{
+	perms->mode = cpu_to_be32(inode->i_mode);
+	perms->owner = cpu_to_be32(inode->i_uid);
+	perms->group = cpu_to_be32(inode->i_gid);
+	perms->dev = cpu_to_be32(HFSPLUS_I(inode).dev);
+}
+
+static int hfsplus_file_open(struct inode *inode, struct file *file)
+{
+	if (HFSPLUS_IS_RSRC(inode))
+		inode = HFSPLUS_I(inode).rsrc_inode;
+	if (atomic_read(&file->f_count) != 1)
+		return 0;
+	atomic_inc(&HFSPLUS_I(inode).opencnt);
+	return 0;
+}
+
+static int hfsplus_file_release(struct inode *inode, struct file *file)
+{
+	struct super_block *sb = inode->i_sb;
+
+	if (HFSPLUS_IS_RSRC(inode))
+		inode = HFSPLUS_I(inode).rsrc_inode;
+	if (atomic_read(&file->f_count) != 0)
+		return 0;
+	if (atomic_dec_and_test(&HFSPLUS_I(inode).opencnt)) {
+		down(&inode->i_sem);
+		if (inode->i_flags & S_DEAD) {
+			hfsplus_delete_cat(inode->i_ino, HFSPLUS_SB(sb).hidden_dir, NULL);
+			hfsplus_delete_inode(inode);
+		}
+		up(&inode->i_sem);
+	}
+	return 0;
+}
+
+extern struct inode_operations hfsplus_dir_inode_operations;
+extern struct file_operations hfsplus_dir_operations;
+
+struct inode_operations hfsplus_file_inode_operations = {
+	.lookup		= hfsplus_file_lookup,
+	.truncate	= hfsplus_truncate,
+};
+
+struct file_operations hfsplus_file_operations = {
+	.llseek 	= generic_file_llseek,
+	.read		= generic_file_read,
+	//.write	= hfsplus_file_write,
+	.write		= generic_file_write,
+	.mmap		= generic_file_mmap,
+	.fsync		= file_fsync,
+	.open		= hfsplus_file_open,
+	.release	= hfsplus_file_release,
+};
+
+struct inode *hfsplus_new_inode(struct super_block *sb, int mode)
+{
+	struct inode *inode = new_inode(sb);
+	if (!inode)
+		return NULL;
+
+	{
+	void hfsplus_inode_check(struct super_block *sb);
+	atomic_inc(&HFSPLUS_SB(sb).inode_cnt);
+	hfsplus_inode_check(sb);
+	}
+	inode->i_ino = HFSPLUS_SB(sb).next_cnid++;
+	inode->i_mode = mode;
+	inode->i_uid = current->fsuid;
+	inode->i_gid = current->fsgid;
+	inode->i_nlink = 1;
+	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+	if (S_ISDIR(inode->i_mode)) {
+		inode->i_size = 2;
+		HFSPLUS_SB(sb).folder_count++;
+		inode->i_op = &hfsplus_dir_inode_operations;
+		inode->i_fop = &hfsplus_dir_operations;
+		INIT_LIST_HEAD(&HFSPLUS_I(inode).open_dir_list);
+	} else if (S_ISREG(inode->i_mode)) {
+		HFSPLUS_SB(sb).file_count++;
+		inode->i_op = &hfsplus_file_inode_operations;
+		inode->i_fop = &hfsplus_file_operations;
+		inode->i_mapping->a_ops = &hfsplus_aops;
+	} else if (S_ISLNK(inode->i_mode)) {
+		HFSPLUS_SB(sb).file_count++;
+		inode->i_op = &page_symlink_inode_operations;
+		inode->i_mapping->a_ops = &hfsplus_aops;
+	} else
+		HFSPLUS_SB(sb).file_count++;
+	insert_inode_hash(inode);
+	mark_inode_dirty(inode);
+	sb->s_dirt = 1;
+
+	return inode;
+}
+
+void hfsplus_delete_inode(struct inode *inode)
+{
+	struct super_block *sb = inode->i_sb;
+
+	if (S_ISDIR(inode->i_mode)) {
+		HFSPLUS_SB(sb).folder_count--;
+		sb->s_dirt = 1;
+		return;
+	}
+	HFSPLUS_SB(sb).file_count--;
+	if (S_ISREG(inode->i_mode)) {
+		if (!inode->i_nlink) {
+			inode->i_size = 0;
+			hfsplus_truncate(inode);
+		}
+	} else if (S_ISLNK(inode->i_mode)) {
+		inode->i_size = 0;
+		hfsplus_truncate(inode);
+	}
+	sb->s_dirt = 1;
+}
+
+void hfsplus_inode_read_fork(struct inode *inode, hfsplus_fork_raw *fork)
+{
+	u32 count;
+	int i;
+
+	memcpy(&HFSPLUS_I(inode).extents, &fork->extents,
+	       sizeof(hfsplus_extent_rec));
+	for (count = 0, i = 0; i < 8; i++)
+		count += be32_to_cpu(fork->extents[i].block_count);
+	HFSPLUS_I(inode).extent_blocks = count;
+	HFSPLUS_I(inode).total_blocks = HFSPLUS_I(inode).alloc_blocks =
+		be32_to_cpu(fork->total_blocks);
+	inode->i_size = HFSPLUS_I(inode).mmu_private = be64_to_cpu(fork->total_size);
+	inode->i_blocks = be32_to_cpu(fork->total_blocks);
+}
+
+void hfsplus_inode_write_fork(struct inode *inode, hfsplus_fork_raw *fork)
+{
+	memcpy(&fork->extents, &HFSPLUS_I(inode).extents,
+	       sizeof(hfsplus_extent_rec));
+	fork->total_size = cpu_to_be64(inode->i_size);
+	fork->total_blocks = cpu_to_be32(HFSPLUS_I(inode).alloc_blocks);
+}
+
+int hfsplus_cat_read_inode(struct inode *inode, struct hfsplus_find_data *fd)
+{
+	hfsplus_cat_entry entry;
+	int res = 0;
+	u16 type;
+
+	type = hfsplus_bnode_read_u16(fd->bnode, fd->entryoffset);
+
+	HFSPLUS_I(inode).dev = 0;
+	inode->i_blksize = PAGE_SIZE; /* Doesn't seem to be useful... */
+	if (type == HFSPLUS_FOLDER) {
+		hfsplus_cat_folder *folder = &entry.folder;
+
+		if (fd->entrylength < sizeof(hfsplus_cat_folder))
+			/* panic? */;
+		hfsplus_bnode_readbytes(fd->bnode, &entry, fd->entryoffset,
+					sizeof(hfsplus_cat_folder));
+		memset(&HFSPLUS_I(inode).extents, 0,
+		       sizeof(hfsplus_extent_rec));
+		hfsplus_get_perms(inode, &folder->permissions, 1);
+		inode->i_nlink = 1;
+		inode->i_size = 2 + be32_to_cpu(folder->valence);
+		inode->i_atime = hfsp_mt2ut(folder->access_date);
+		inode->i_mtime = hfsp_mt2ut(folder->content_mod_date);
+		inode->i_ctime = inode->i_mtime;
+		inode->i_blocks = 0;
+		inode->i_op = &hfsplus_dir_inode_operations;
+		inode->i_fop = &hfsplus_dir_operations;
+		INIT_LIST_HEAD(&HFSPLUS_I(inode).open_dir_list);
+	} else if (type == HFSPLUS_FILE) {
+		hfsplus_cat_file *file = &entry.file;
+
+		if (fd->entrylength < sizeof(hfsplus_cat_file))
+			/* panic? */;
+		hfsplus_bnode_readbytes(fd->bnode, &entry, fd->entryoffset,
+					sizeof(hfsplus_cat_file));
+
+		hfsplus_inode_read_fork(inode, HFSPLUS_IS_DATA(inode) ?
+					&file->data_fork : &file->rsrc_fork);
+		hfsplus_get_perms(inode, &file->permissions, 0);
+		inode->i_nlink = 1;
+		if (S_ISREG(inode->i_mode)) {
+			if (file->permissions.dev)
+				inode->i_nlink = be32_to_cpu(file->permissions.dev);
+			inode->i_op = &hfsplus_file_inode_operations;
+			inode->i_fop = &hfsplus_file_operations;
+			inode->i_mapping->a_ops = &hfsplus_aops;
+		} else if (S_ISLNK(inode->i_mode)) {
+			inode->i_op = &page_symlink_inode_operations;
+			inode->i_mapping->a_ops = &hfsplus_aops;
+		} else {
+			init_special_inode(inode, inode->i_mode,
+					   be32_to_cpu(file->permissions.dev));
+		}
+		inode->i_atime = hfsp_mt2ut(file->access_date);
+		inode->i_mtime = hfsp_mt2ut(file->content_mod_date);
+		inode->i_ctime = inode->i_mtime;
+	} else {
+		printk("HFS+-fs: bad catalog entry used to create inode\n");
+		res = -EIO;
+	}
+	return res;
+}
+
+void hfsplus_cat_write_inode(struct inode *inode)
+{
+	struct hfsplus_find_data fd;
+	hfsplus_cat_entry entry;
+
+	if (HFSPLUS_IS_RSRC(inode)) {
+		mark_inode_dirty(HFSPLUS_I(inode).rsrc_inode);
+		return;
+	}
+
+	if (!inode->i_nlink)
+		return;
+
+	if (hfsplus_find_init(HFSPLUS_SB(inode->i_sb).cat_tree, &fd))
+		/* panic? */
+		return;
+
+	if (hfsplus_find_cat(inode->i_sb, inode->i_ino, &fd))
+		/* panic? */
+		goto out;
+
+	if (S_ISDIR(inode->i_mode)) {
+		hfsplus_cat_folder *folder = &entry.folder;
+
+		if (fd.entrylength < sizeof(hfsplus_cat_folder))
+			/* panic? */;
+		hfsplus_bnode_readbytes(fd.bnode, &entry, fd.entryoffset,
+					sizeof(hfsplus_cat_folder));
+		/* simple node checks? */
+		hfsplus_set_perms(inode, &folder->permissions);
+		folder->access_date = hfsp_ut2mt(inode->i_atime);
+		folder->content_mod_date = hfsp_ut2mt(inode->i_mtime);
+		folder->attribute_mod_date = hfsp_ut2mt(inode->i_ctime);
+		folder->valence = cpu_to_be32(inode->i_size - 2);
+		hfsplus_bnode_writebytes(fd.bnode, &entry, fd.entryoffset,
+					 sizeof(hfsplus_cat_folder));
+	} else {
+		hfsplus_cat_file *file = &entry.file;
+
+		if (fd.entrylength < sizeof(hfsplus_cat_file))
+			/* panic? */;
+		hfsplus_bnode_readbytes(fd.bnode, &entry, fd.entryoffset,
+					sizeof(hfsplus_cat_file));
+		hfsplus_inode_write_fork(inode, &file->data_fork);
+		if (HFSPLUS_I(inode).rsrc_inode)
+			hfsplus_inode_write_fork(HFSPLUS_I(inode).rsrc_inode, &file->rsrc_fork);
+		if (S_ISREG(inode->i_mode))
+			HFSPLUS_I(inode).dev = inode->i_nlink;
+		if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
+			HFSPLUS_I(inode).dev = kdev_t_to_nr(inode->i_rdev);
+		hfsplus_set_perms(inode, &file->permissions);
+		file->access_date = hfsp_ut2mt(inode->i_atime);
+		file->content_mod_date = hfsp_ut2mt(inode->i_mtime);
+		file->attribute_mod_date = hfsp_ut2mt(inode->i_ctime);
+		hfsplus_bnode_writebytes(fd.bnode, &entry, fd.entryoffset,
+					 sizeof(hfsplus_cat_file));
+	}
+out:
+	hfsplus_find_exit(&fd);
+}
diff --git a/fs/hfsplus/options.c b/fs/hfsplus/options.c
new file mode 100644
index 00000000000000..7d5fbb1f0e7a06
--- /dev/null
+++ b/fs/hfsplus/options.c
@@ -0,0 +1,140 @@
+/*
+ *  linux/fs/hfsplus/options.c
+ *
+ * Copyright (C) 2001
+ * Brad Boyer (flar@allandria.com)
+ * (C) 2003 Ardis Technologies <roman@ardistech.com>
+ *
+ * Option parsing
+ */
+
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include "hfsplus_fs.h"
+
+/* Initialize an options object to reasonable defaults */
+void fill_defaults(struct hfsplus_sb_info *opts)
+{
+	if (!opts)
+		return;
+
+	opts->creator = HFSPLUS_DEF_CR_TYPE;
+	opts->type = HFSPLUS_DEF_CR_TYPE;
+	opts->charcase = HFSPLUS_CASE_ASIS;
+	opts->fork = HFSPLUS_FORK_RAW;
+	opts->namemap = HFSPLUS_NAMES_TRIVIAL;
+	opts->umask = current->fs->umask;
+	opts->uid = current->uid;
+	opts->gid = current->gid;
+}
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+/* Copy settings from one hfsplus_sb_info object to another */
+void fill_current(struct hfsplus_sb_info *curopts,
+		  struct hfsplus_sb_info *opts)
+{
+	if (!curopts || !opts)
+		return;
+
+	opts->creator = curopts->creator;
+	opts->type = curopts->type;
+	opts->charcase = curopts->charcase;
+	opts->fork = curopts->fork;
+	opts->namemap = curopts->namemap;
+	opts->umask = curopts->umask;
+	opts->uid = curopts->uid;
+	opts->gid = curopts->gid;
+}
+#endif
+
+/* convert a "four byte character" to a 32 bit int with error checks */
+static int fill_fourchar(u32 *result, char *input)
+{
+	u32 out;
+	int i;
+
+	if (!result || !input || !*input || (strlen(input) != 4))
+		return 0;
+
+	for (out = 0, i = 0; i < 4; i++) {
+		out <<= 8;
+		out |= ((int)(input[i])) & 0xFF;
+	}
+	*result = out;
+	return 1;
+}
+
+/* convert a string to int with error checks */
+static int fill_int(int *result, char *input, int base)
+{
+	char *tmp = input;
+	int intval;
+
+	if (!result || !input || !*input)
+		return 0;
+
+	intval = simple_strtoul(tmp, &tmp, base);
+	if (*tmp)
+		return 0;
+
+	*result = intval;
+	return 1;
+}
+
+/* Parse options from mount. Returns 0 on failure */
+/* input is the options passed to mount() as a string */
+int parse_options(char *input, struct hfsplus_sb_info *results)
+{
+	char *curropt, *value;
+	int tmp;
+
+	if (!input)
+		return 1;
+
+	while ((curropt = strsep(&input,",")) != NULL) {
+		if (!*curropt)
+			continue;
+
+		if ((value = strchr(curropt, '=')) != NULL)
+			*value++ = '\0';
+
+		if (!strcmp(curropt, "creator")) {
+			if (!fill_fourchar(&(results->creator), value)) {
+				printk("HFS+-fs: creator requires a 4 character value\n");
+				return 0;
+			}
+		} else if (!strcmp(curropt, "type")) {
+			if (!fill_fourchar(&(results->type), value)) {
+				printk("HFS+-fs: type requires a 4 character value\n");
+				return 0;
+			}
+		} else if (!strcmp(curropt, "case")) {
+		} else if (!strcmp(curropt, "fork")) {
+		} else if (!strcmp(curropt, "names")) {
+		} else if (!strcmp(curropt, "umask")) {
+			if (!fill_int(&tmp, value, 8)) {
+				printk("HFS+-fs: umask requires a value\n");
+				return 0;
+			}
+			results->umask = (umode_t)tmp;
+		} else if (!strcmp(curropt, "uid")) {
+			if (!fill_int(&tmp, value, 0)) {
+				printk("HFS+-fs: uid requires an argument\n");
+				return 0;
+			}
+			results->uid = (uid_t)tmp;
+		} else if (!strcmp(curropt, "gid")) {
+			if (!fill_int(&tmp, value, 0)) {
+				printk("HFS+-fs: gid requires an argument\n");
+				return 0;
+			}
+			results->gid = (gid_t)tmp;
+		} else {
+			printk("HFS+-fs: unknown option %s\n", curropt);
+			return 0;
+		}
+	}
+
+	return 1;
+}
diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c
new file mode 100644
index 00000000000000..66ca634ee12788
--- /dev/null
+++ b/fs/hfsplus/super.c
@@ -0,0 +1,523 @@
+/*
+ *  linux/fs/hfsplus/super.c
+ *
+ * Copyright (C) 2001
+ * Brad Boyer (flar@allandria.com)
+ * (C) 2003 Ardis Technologies <roman@ardistech.com>
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/fs.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/version.h>
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+#include <linux/locks.h>
+#else
+#include <linux/buffer_head.h>
+#include <linux/vfs.h>
+
+static struct inode *hfsplus_alloc_inode(struct super_block *sb);
+static void hfsplus_destroy_inode(struct inode *inode);
+#endif
+
+#include "hfsplus_fs.h"
+
+void hfsplus_inode_check(struct super_block *sb)
+{
+#if 0
+	u32 cnt = atomic_read(&HFSPLUS_SB(sb).inode_cnt);
+	u32 last_cnt = HFSPLUS_SB(sb).last_inode_cnt;
+
+	if (cnt <= (last_cnt / 2) ||
+	    cnt >= (last_cnt * 2)) {
+		HFSPLUS_SB(sb).last_inode_cnt = cnt;
+		printk("inode_check: %u,%u,%u\n", cnt, last_cnt,
+			HFSPLUS_SB(sb).cat_tree ? HFSPLUS_SB(sb).cat_tree->node_hash_cnt : 0);
+	}
+#endif
+}
+
+static void hfsplus_read_inode(struct inode *inode)
+{
+	struct hfsplus_find_data fd;
+	struct hfsplus_vh *vhdr;
+	int err;
+
+	atomic_inc(&HFSPLUS_SB(inode->i_sb).inode_cnt);
+	hfsplus_inode_check(inode->i_sb);
+	if (inode->i_ino >= HFSPLUS_FIRSTUSER_CNID) {
+	read_inode:
+		HFSPLUS_I(inode).flags = 0;
+		hfsplus_find_init(HFSPLUS_SB(inode->i_sb).cat_tree, &fd);
+		err = hfsplus_find_cat(inode->i_sb, inode->i_ino, &fd);
+		if (!err)
+			err = hfsplus_cat_read_inode(inode, &fd);
+		hfsplus_find_exit(&fd);
+		if (err)
+			goto bad_inode;
+		return;
+	}
+	vhdr = HFSPLUS_SB(inode->i_sb).s_vhdr;
+	switch(inode->i_ino) {
+	case HFSPLUS_ROOT_CNID:
+		goto read_inode;
+	case HFSPLUS_EXT_CNID:
+		hfsplus_inode_read_fork(inode, &vhdr->ext_file);
+		inode->i_mapping->a_ops = &hfsplus_btree_aops;
+		break;
+	case HFSPLUS_CAT_CNID:
+		hfsplus_inode_read_fork(inode, &vhdr->cat_file);
+		inode->i_mapping->a_ops = &hfsplus_btree_aops;
+		break;
+	case HFSPLUS_ALLOC_CNID:
+		hfsplus_inode_read_fork(inode, &vhdr->alloc_file);
+		break;
+	case HFSPLUS_START_CNID:
+		hfsplus_inode_read_fork(inode, &vhdr->start_file);
+		break;
+	case HFSPLUS_ATTR_CNID:
+		hfsplus_inode_read_fork(inode, &vhdr->attr_file);
+		inode->i_mapping->a_ops = &hfsplus_btree_aops;
+		break;
+	default:
+		goto bad_inode;
+	}
+	
+	return;
+
+ bad_inode:
+	make_bad_inode(inode);
+}
+
+void hfsplus_write_inode(struct inode *inode, int unused)
+{
+	struct hfsplus_vh *vhdr;
+
+	dprint(DBG_INODE, "hfsplus_write_inode: %lu\n", inode->i_ino);
+	if (inode->i_ino >= HFSPLUS_FIRSTUSER_CNID) {
+		hfsplus_cat_write_inode(inode);
+		return;
+	}
+	vhdr = HFSPLUS_SB(inode->i_sb).s_vhdr;
+	switch (inode->i_ino) {
+	case HFSPLUS_ROOT_CNID:
+		hfsplus_cat_write_inode(inode);
+		break;
+	case HFSPLUS_EXT_CNID:
+		if (vhdr->ext_file.total_size != cpu_to_be64(inode->i_size)) {
+			HFSPLUS_SB(inode->i_sb).flags |= HFSPLUS_SB_WRITEBACKUP;
+			inode->i_sb->s_dirt = 1;
+		}
+		hfsplus_inode_write_fork(inode, &vhdr->ext_file);
+		hfsplus_write_btree(HFSPLUS_SB(inode->i_sb).ext_tree);
+		break;
+	case HFSPLUS_CAT_CNID:
+		if (vhdr->cat_file.total_size != cpu_to_be64(inode->i_size)) {
+			HFSPLUS_SB(inode->i_sb).flags |= HFSPLUS_SB_WRITEBACKUP;
+			inode->i_sb->s_dirt = 1;
+		}
+		hfsplus_inode_write_fork(inode, &vhdr->cat_file);
+		hfsplus_write_btree(HFSPLUS_SB(inode->i_sb).cat_tree);
+		break;
+	case HFSPLUS_ALLOC_CNID:
+		if (vhdr->alloc_file.total_size != cpu_to_be64(inode->i_size)) {
+			HFSPLUS_SB(inode->i_sb).flags |= HFSPLUS_SB_WRITEBACKUP;
+			inode->i_sb->s_dirt = 1;
+		}
+		hfsplus_inode_write_fork(inode, &vhdr->alloc_file);
+		break;
+	case HFSPLUS_START_CNID:
+		if (vhdr->start_file.total_size != cpu_to_be64(inode->i_size)) {
+			HFSPLUS_SB(inode->i_sb).flags |= HFSPLUS_SB_WRITEBACKUP;
+			inode->i_sb->s_dirt = 1;
+		}
+		hfsplus_inode_write_fork(inode, &vhdr->start_file);
+		break;
+	case HFSPLUS_ATTR_CNID:
+		if (vhdr->attr_file.total_size != cpu_to_be64(inode->i_size)) {
+			HFSPLUS_SB(inode->i_sb).flags |= HFSPLUS_SB_WRITEBACKUP;
+			inode->i_sb->s_dirt = 1;
+		}
+		hfsplus_inode_write_fork(inode, &vhdr->attr_file);
+		hfsplus_write_btree(HFSPLUS_SB(inode->i_sb).attr_tree);
+		break;
+	}
+}
+
+static void hfsplus_clear_inode(struct inode *inode)
+{
+	atomic_dec(&HFSPLUS_SB(inode->i_sb).inode_cnt);
+	if (HFSPLUS_IS_RSRC(inode)) {
+		HFSPLUS_I(HFSPLUS_I(inode).rsrc_inode).rsrc_inode = NULL;
+		iput(HFSPLUS_I(inode).rsrc_inode);
+	}
+	hfsplus_inode_check(inode->i_sb);
+}
+
+static void hfsplus_write_super(struct super_block *sb)
+{
+	struct hfsplus_vh *vhdr = HFSPLUS_SB(sb).s_vhdr;
+
+	dprint(DBG_SUPER, "hfsplus_write_super\n");
+	sb->s_dirt = 0;
+	if (sb->s_flags & MS_RDONLY)
+		/* warn? */
+		return;
+
+	vhdr->free_blocks = cpu_to_be32(HFSPLUS_SB(sb).free_blocks);
+	vhdr->next_alloc = cpu_to_be32(HFSPLUS_SB(sb).next_alloc);
+	vhdr->next_cnid = cpu_to_be32(HFSPLUS_SB(sb).next_cnid);
+	vhdr->folder_count = cpu_to_be32(HFSPLUS_SB(sb).folder_count);
+	vhdr->file_count = cpu_to_be32(HFSPLUS_SB(sb).file_count);
+
+	mark_buffer_dirty(HFSPLUS_SB(sb).s_vhbh);
+	if (HFSPLUS_SB(sb).flags & HFSPLUS_SB_WRITEBACKUP) {
+		if (HFSPLUS_SB(sb).sect_count) {
+			struct buffer_head *bh;
+			u32 block, offset;
+
+			block = HFSPLUS_SB(sb).blockoffset;
+			block += (HFSPLUS_SB(sb).sect_count - 2) >> (sb->s_blocksize_bits - 9);
+			offset = ((HFSPLUS_SB(sb).sect_count - 2) << 9) & (sb->s_blocksize - 1);
+			//printk("backup: %u,%u,%u,%u\n", HFSPLUS_SB(sb).blockoffset,
+			//	HFSPLUS_SB(sb).sect_count, block, offset);
+			bh = sb_bread(sb, block);
+			vhdr = (struct hfsplus_vh *)(bh->b_data + offset);
+			if (be16_to_cpu(vhdr->signature) == HFSPLUS_VOLHEAD_SIG) {
+				memcpy(vhdr, HFSPLUS_SB(sb).s_vhdr, sizeof(*vhdr));
+				mark_buffer_dirty(bh);
+				brelse(bh);
+			} else
+				printk("backup not found!\n");
+		}
+		HFSPLUS_SB(sb).flags &= ~HFSPLUS_SB_WRITEBACKUP;
+	}
+}
+
+static void hfsplus_put_super(struct super_block *sb)
+{
+	dprint(DBG_SUPER, "hfsplus_put_super\n");
+	if (!(sb->s_flags & MS_RDONLY)) {
+		struct hfsplus_vh *vhdr = HFSPLUS_SB(sb).s_vhdr;
+
+		vhdr->modify_date = hfsp_now2mt();
+		vhdr->attributes |= cpu_to_be32(HFSPLUS_VOL_UNMNT);
+		vhdr->attributes &= cpu_to_be32(~HFSPLUS_VOL_INCNSTNT);
+		mark_buffer_dirty(HFSPLUS_SB(sb).s_vhbh);
+		ll_rw_block(WRITE, 1, &HFSPLUS_SB(sb).s_vhbh);
+		wait_on_buffer(HFSPLUS_SB(sb).s_vhbh);
+	}
+
+	hfsplus_close_btree(HFSPLUS_SB(sb).cat_tree);
+	hfsplus_close_btree(HFSPLUS_SB(sb).ext_tree);
+	iput(HFSPLUS_SB(sb).alloc_file);
+	iput(HFSPLUS_SB(sb).hidden_dir);
+	brelse(HFSPLUS_SB(sb).s_vhbh);
+}
+
+static int hfsplus_statfs(struct super_block *sb, struct statfs *buf)
+{
+	buf->f_type = HFSPLUS_SUPER_MAGIC;
+	buf->f_bsize = sb->s_blocksize;
+	buf->f_blocks = be32_to_cpu(HFSPLUS_SB(sb).s_vhdr->total_blocks);
+	buf->f_bfree = HFSPLUS_SB(sb).free_blocks;
+	buf->f_bavail = buf->f_bfree;
+	buf->f_files = 0xFFFFFFFF;
+	buf->f_ffree = 0xFFFFFFFF - HFSPLUS_SB(sb).next_cnid;
+	buf->f_namelen = HFSPLUS_MAX_STRLEN;
+
+	return 0;
+}
+
+int hfsplus_remount(struct super_block *sb, int *flags, char *data)
+{
+	if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
+		return 0;
+	if (!(*flags & MS_RDONLY)) {
+		struct hfsplus_vh *vhdr = HFSPLUS_SB(sb).s_vhdr;
+
+		if ((vhdr->attributes & cpu_to_be32(HFSPLUS_VOL_INCNSTNT)) ||
+		    !(vhdr->attributes & cpu_to_be32(HFSPLUS_VOL_UNMNT))) {
+			printk("HFS+-fs warning: Filesystem was not cleanly unmounted, "
+			       "running fsck.hfsplus is recommended.  leaving read-only.\n");
+			sb->s_flags |= MS_RDONLY;
+			*flags |= MS_RDONLY;
+		} else if (vhdr->attributes & cpu_to_be32(HFSPLUS_VOL_SOFTLOCK)) {
+			printk("HFS+-fs: Filesystem is marked locked, leaving read-only.\n");
+			sb->s_flags |= MS_RDONLY;
+			*flags |= MS_RDONLY;
+		}
+	}
+	return 0;
+}
+
+static struct super_operations hfsplus_sops = {
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
+	.alloc_inode	= hfsplus_alloc_inode,
+	.destroy_inode	= hfsplus_destroy_inode,
+#endif
+	.read_inode	= hfsplus_read_inode,
+	.write_inode	= hfsplus_write_inode,
+	.clear_inode	= hfsplus_clear_inode,
+	.put_super	= hfsplus_put_super,
+	.write_super	= hfsplus_write_super,
+	.statfs		= hfsplus_statfs,
+	.remount_fs	= hfsplus_remount,
+};
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+struct super_block *hfsplus_read_super(struct super_block *sb, void *data,
+				       int silent)
+#else
+static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
+#endif
+{
+	struct hfsplus_vh *vhdr;
+	struct hfsplus_sb_info *sbi;
+	hfsplus_cat_entry entry;
+	struct hfsplus_find_data fd;
+	struct qstr str;
+	int err = -EINVAL;
+
+	sbi = kmalloc(sizeof(struct hfsplus_sb_info), GFP_KERNEL);
+	if (!sbi) {
+		err = -ENOMEM;
+		goto out2;
+	}
+	memset(sbi, 0, sizeof(HFSPLUS_SB(sb)));
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+	if (sizeof(struct inode) - offsetof(struct inode, u) < sizeof(struct hfsplus_inode_info)) {
+		extern void hfsplus_inode_info_exceeded_space_in_inode_error(void);
+		hfsplus_inode_info_exceeded_space_in_inode_error();
+	}
+
+	if (sizeof(struct super_block) - offsetof(struct super_block, u) < sizeof(struct hfsplus_sb_info)) {
+		extern void hfsplus_sb_info_exceeded_space_in_super_block_error(void);
+		hfsplus_sb_info_exceeded_space_in_super_block_error();
+	}
+
+	INIT_LIST_HEAD(&HFSPLUS_SB(sb).rsrc_inodes);
+#else
+	sb->s_fs_info = sbi;
+	INIT_HLIST_HEAD(&sbi->rsrc_inodes);
+#endif
+	fill_defaults(sbi);
+	if (!parse_options(data, sbi)) {
+		if (!silent)
+			printk("HFS+-fs: unable to parse mount options\n");
+		err = -EINVAL;
+		goto out2;
+	}
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+	fill_current(sbi, &HFSPLUS_SB(sb));
+	kfree(sbi);
+#endif
+
+	/* Grab the volume header */
+	if (hfsplus_read_wrapper(sb)) {
+		if (!silent)
+			printk("HFS+-fs: unable to find HFS+ superblock\n");
+		err = -EINVAL;
+		goto out2;
+	}
+	vhdr = HFSPLUS_SB(sb).s_vhdr;
+
+	/* Copy parts of the volume header into the superblock */
+	sb->s_magic = be16_to_cpu(vhdr->signature);
+	if (be16_to_cpu(vhdr->version) != HFSPLUS_CURRENT_VERSION) {
+		if (!silent)
+			printk("HFS+-fs: wrong filesystem version\n");
+		goto cleanup;
+	}
+	HFSPLUS_SB(sb).total_blocks = be32_to_cpu(vhdr->total_blocks);
+	HFSPLUS_SB(sb).free_blocks = be32_to_cpu(vhdr->free_blocks);
+	HFSPLUS_SB(sb).next_alloc = be32_to_cpu(vhdr->next_alloc);
+	HFSPLUS_SB(sb).next_cnid = be32_to_cpu(vhdr->next_cnid);
+	HFSPLUS_SB(sb).file_count = be32_to_cpu(vhdr->file_count);
+	HFSPLUS_SB(sb).folder_count = be32_to_cpu(vhdr->folder_count);
+
+	/* Set up operations so we can load metadata */
+	sb->s_op = &hfsplus_sops;
+
+	if ((vhdr->attributes & cpu_to_be32(HFSPLUS_VOL_INCNSTNT)) ||
+	    !(vhdr->attributes & cpu_to_be32(HFSPLUS_VOL_UNMNT))) {
+		if (!silent)
+			printk("HFS+-fs warning: Filesystem was not cleanly unmounted, "
+			       "running fsck.hfsplus is recommended.  mounting read-only.\n");
+		sb->s_flags |= MS_RDONLY;
+	} else if (vhdr->attributes & cpu_to_be32(HFSPLUS_VOL_SOFTLOCK)) {
+		if (!silent)
+			printk("HFS+-fs: Filesystem is marked locked, mounting read-only.\n");
+		sb->s_flags |= MS_RDONLY;
+	}
+
+	/* Load metadata objects (B*Trees) */
+	HFSPLUS_SB(sb).ext_tree = hfsplus_open_btree(sb, HFSPLUS_EXT_CNID);
+	if (!HFSPLUS_SB(sb).ext_tree) {
+		if (!silent)
+			printk("HFS+-fs: failed to load extents file\n");
+		goto cleanup;
+	}
+	HFSPLUS_SB(sb).cat_tree = hfsplus_open_btree(sb, HFSPLUS_CAT_CNID);
+	if (!HFSPLUS_SB(sb).cat_tree) {
+		if (!silent)
+			printk("HFS+-fs: failed to load catalog file\n");
+		goto cleanup;
+	}
+
+	HFSPLUS_SB(sb).alloc_file = iget(sb, HFSPLUS_ALLOC_CNID);
+	if (!HFSPLUS_SB(sb).alloc_file) {
+		if (!silent)
+			printk("HFS+-fs: failed to load allocation file\n");
+		goto cleanup;
+	}
+
+	/* Load the root directory */
+	sb->s_root = d_alloc_root(iget(sb, HFSPLUS_ROOT_CNID));
+	if (!sb->s_root) {
+		if (!silent)
+			printk("HFS+-fs: failed to load root directory\n");
+		goto cleanup;
+	}
+
+	str.len = sizeof(HFSP_HIDDENDIR_NAME) - 1;
+	str.name = HFSP_HIDDENDIR_NAME;
+	hfsplus_find_init(HFSPLUS_SB(sb).cat_tree, &fd);
+	hfsplus_fill_cat_key(fd.search_key, HFSPLUS_ROOT_CNID, &str);
+	if (!hfsplus_btree_find_entry(&fd, &entry, sizeof(entry))) {
+		hfsplus_find_exit(&fd);
+		if (entry.type != cpu_to_be16(HFSPLUS_FOLDER))
+			goto cleanup;
+		HFSPLUS_SB(sb).hidden_dir = iget(sb, be32_to_cpu(entry.folder.id));
+		if (!HFSPLUS_SB(sb).hidden_dir)
+			goto cleanup;
+	} else
+		hfsplus_find_exit(&fd);
+
+	if (sb->s_flags & MS_RDONLY)
+		goto out;
+
+	/* H+LX == hfsplusutils, H+Lx == this driver, H+lx is unused
+	 * all three are registered with Apple for our use
+	 */
+	vhdr->last_mount_vers = cpu_to_be32(HFSP_MOUNT_VERSION);
+	vhdr->modify_date = hfsp_now2mt();
+	vhdr->write_count = cpu_to_be32(be32_to_cpu(vhdr->write_count) + 1);
+	vhdr->attributes &= cpu_to_be32(~HFSPLUS_VOL_UNMNT);
+	vhdr->attributes |= cpu_to_be32(HFSPLUS_VOL_INCNSTNT);
+	mark_buffer_dirty(HFSPLUS_SB(sb).s_vhbh);
+	ll_rw_block(WRITE, 1, &HFSPLUS_SB(sb).s_vhbh);
+	wait_on_buffer(HFSPLUS_SB(sb).s_vhbh);
+
+	if (!HFSPLUS_SB(sb).hidden_dir) {
+		printk("HFS+: create hidden dir...\n");
+		HFSPLUS_SB(sb).hidden_dir = hfsplus_new_inode(sb, S_IFDIR);
+		hfsplus_create_cat(HFSPLUS_SB(sb).hidden_dir->i_ino, sb->s_root->d_inode,
+				   &str, HFSPLUS_SB(sb).hidden_dir);
+		mark_inode_dirty(HFSPLUS_SB(sb).hidden_dir);
+	}
+out:
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+	return sb;
+#else
+	return 0;
+#endif
+
+cleanup:
+	hfsplus_put_super(sb);
+out2:
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+	return NULL;
+#else
+	return err;
+#endif
+}
+
+MODULE_AUTHOR("Brad Boyer");
+MODULE_DESCRIPTION("Extended Macintosh Filesystem");
+MODULE_LICENSE("GPL");
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+
+static DECLARE_FSTYPE_DEV(hfsplus_fs_type, "hfsplus", hfsplus_read_super);
+
+static int __init init_hfsplus_fs(void)
+{
+	return register_filesystem(&hfsplus_fs_type);
+}
+
+static void __exit exit_hfsplus_fs(void)
+{
+	unregister_filesystem(&hfsplus_fs_type);
+}
+
+EXPORT_NO_SYMBOLS;
+
+#else
+
+static kmem_cache_t * hfsplus_inode_cachep;
+
+static void init_once(void *p, kmem_cache_t *cachep, unsigned long flags)
+{
+	struct hfsplus_inode_info *i = (struct hfsplus_inode_info *)p;
+
+	if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) == SLAB_CTOR_CONSTRUCTOR) {
+		inode_init_once(&i->vfs_inode);
+	}
+}
+
+static struct inode *hfsplus_alloc_inode(struct super_block *sb)
+{
+	struct hfsplus_inode_info *i;
+	i = (struct hfsplus_inode_info *)kmem_cache_alloc(hfsplus_inode_cachep, SLAB_KERNEL);
+	return i ? &i->vfs_inode : NULL;
+}
+
+static void hfsplus_destroy_inode(struct inode *inode)
+{
+	kmem_cache_free(hfsplus_inode_cachep, &HFSPLUS_I(inode));
+}
+
+static struct super_block *hfsplus_get_sb(struct file_system_type *fs_type,
+					  int flags, char *dev_name, void *data)
+{
+	return get_sb_bdev(fs_type, flags, dev_name, data, hfsplus_fill_super);
+}
+
+static struct file_system_type hfsplus_fs_type = {
+	.owner		= THIS_MODULE,
+	.name		= "hfsplus",
+	.get_sb		= hfsplus_get_sb,
+	.kill_sb	= kill_block_super,
+	.fs_flags	= FS_REQUIRES_DEV,
+};
+
+static int __init init_hfsplus_fs(void)
+{
+	int err;
+
+	hfsplus_inode_cachep = kmem_cache_create("hfsplus_inode_cache",
+		sizeof(struct hfsplus_inode_info), 0, SLAB_HWCACHE_ALIGN,
+		init_once, NULL);
+	if (!hfsplus_inode_cachep)
+		return -ENOMEM;
+	err = register_filesystem(&hfsplus_fs_type);
+	if (err)
+		kmem_cache_destroy(hfsplus_inode_cachep);
+	return err;
+}
+
+static void __exit exit_hfsplus_fs(void)
+{
+	unregister_filesystem(&hfsplus_fs_type);
+	if (kmem_cache_destroy(hfsplus_inode_cachep))
+		printk(KERN_INFO "hfsplus_inode_cache: not all structures were freed\n");
+}
+#endif
+
+module_init(init_hfsplus_fs)
+module_exit(exit_hfsplus_fs)
diff --git a/fs/hfsplus/tables.c b/fs/hfsplus/tables.c
new file mode 100644
index 00000000000000..ce2ed6657715a2
--- /dev/null
+++ b/fs/hfsplus/tables.c
@@ -0,0 +1,408 @@
+/*
+ * linux/fs/hfsplus/tables.c
+ *
+ * Various data tables
+ */
+
+#include "hfsplus_fs.h"
+
+/*
+ *  Unicode case folding table taken from Apple Technote #1150
+ *  (HFS Plus Volume Format)
+ */
+
+u16 case_fold_table[] = {
+/*
+ *  The lower case table consists of a 256-entry high-byte table followed by
+ *  some number of 256-entry subtables. The high-byte table contains either an
+ *  offset to the subtable for characters with that high byte or zero, which
+ *  means that there are no case mappings or ignored characters in that block.
+ *  Ignored characters are mapped to zero.
+ */
+
+    // High-byte indices ( == 0 iff no case mapping and no ignorables )
+
+
+    /* 0 */ 0x0100, 0x0200, 0x0000, 0x0300, 0x0400, 0x0500, 0x0000, 0x0000,
+            0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+    /* 1 */ 0x0600, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+            0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+    /* 2 */ 0x0700, 0x0800, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+            0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+    /* 3 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+            0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+    /* 4 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+            0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+    /* 5 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+            0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+    /* 6 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+            0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+    /* 7 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+            0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+    /* 8 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+            0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+    /* 9 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+            0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+    /* A */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+            0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+    /* B */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+            0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+    /* C */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+            0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+    /* D */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+            0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+    /* E */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+            0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+    /* F */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+            0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0900, 0x0A00,
+
+    // Table 1 (for high byte 0x00)
+
+    /* 0 */ 0xFFFF, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007,
+            0x0008, 0x0009, 0x000A, 0x000B, 0x000C, 0x000D, 0x000E, 0x000F,
+    /* 1 */ 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017,
+            0x0018, 0x0019, 0x001A, 0x001B, 0x001C, 0x001D, 0x001E, 0x001F,
+    /* 2 */ 0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027,
+            0x0028, 0x0029, 0x002A, 0x002B, 0x002C, 0x002D, 0x002E, 0x002F,
+    /* 3 */ 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037,
+            0x0038, 0x0039, 0x003A, 0x003B, 0x003C, 0x003D, 0x003E, 0x003F,
+    /* 4 */ 0x0040, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067,
+            0x0068, 0x0069, 0x006A, 0x006B, 0x006C, 0x006D, 0x006E, 0x006F,
+    /* 5 */ 0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077,
+            0x0078, 0x0079, 0x007A, 0x005B, 0x005C, 0x005D, 0x005E, 0x005F,
+    /* 6 */ 0x0060, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067,
+            0x0068, 0x0069, 0x006A, 0x006B, 0x006C, 0x006D, 0x006E, 0x006F,
+    /* 7 */ 0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077,
+            0x0078, 0x0079, 0x007A, 0x007B, 0x007C, 0x007D, 0x007E, 0x007F,
+    /* 8 */ 0x0080, 0x0081, 0x0082, 0x0083, 0x0084, 0x0085, 0x0086, 0x0087,
+            0x0088, 0x0089, 0x008A, 0x008B, 0x008C, 0x008D, 0x008E, 0x008F,
+    /* 9 */ 0x0090, 0x0091, 0x0092, 0x0093, 0x0094, 0x0095, 0x0096, 0x0097,
+            0x0098, 0x0099, 0x009A, 0x009B, 0x009C, 0x009D, 0x009E, 0x009F,
+    /* A */ 0x00A0, 0x00A1, 0x00A2, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7,
+            0x00A8, 0x00A9, 0x00AA, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF,
+    /* B */ 0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7,
+            0x00B8, 0x00B9, 0x00BA, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x00BF,
+    /* C */ 0x00C0, 0x00C1, 0x00C2, 0x00C3, 0x00C4, 0x00C5, 0x00E6, 0x00C7,
+            0x00C8, 0x00C9, 0x00CA, 0x00CB, 0x00CC, 0x00CD, 0x00CE, 0x00CF,
+    /* D */ 0x00F0, 0x00D1, 0x00D2, 0x00D3, 0x00D4, 0x00D5, 0x00D6, 0x00D7,
+            0x00F8, 0x00D9, 0x00DA, 0x00DB, 0x00DC, 0x00DD, 0x00FE, 0x00DF,
+    /* E */ 0x00E0, 0x00E1, 0x00E2, 0x00E3, 0x00E4, 0x00E5, 0x00E6, 0x00E7,
+            0x00E8, 0x00E9, 0x00EA, 0x00EB, 0x00EC, 0x00ED, 0x00EE, 0x00EF,
+    /* F */ 0x00F0, 0x00F1, 0x00F2, 0x00F3, 0x00F4, 0x00F5, 0x00F6, 0x00F7,
+            0x00F8, 0x00F9, 0x00FA, 0x00FB, 0x00FC, 0x00FD, 0x00FE, 0x00FF,
+
+    // Table 2 (for high byte 0x01)
+
+    /* 0 */ 0x0100, 0x0101, 0x0102, 0x0103, 0x0104, 0x0105, 0x0106, 0x0107,
+            0x0108, 0x0109, 0x010A, 0x010B, 0x010C, 0x010D, 0x010E, 0x010F,
+    /* 1 */ 0x0111, 0x0111, 0x0112, 0x0113, 0x0114, 0x0115, 0x0116, 0x0117,
+            0x0118, 0x0119, 0x011A, 0x011B, 0x011C, 0x011D, 0x011E, 0x011F,
+    /* 2 */ 0x0120, 0x0121, 0x0122, 0x0123, 0x0124, 0x0125, 0x0127, 0x0127,
+            0x0128, 0x0129, 0x012A, 0x012B, 0x012C, 0x012D, 0x012E, 0x012F,
+    /* 3 */ 0x0130, 0x0131, 0x0133, 0x0133, 0x0134, 0x0135, 0x0136, 0x0137,
+            0x0138, 0x0139, 0x013A, 0x013B, 0x013C, 0x013D, 0x013E, 0x0140,
+    /* 4 */ 0x0140, 0x0142, 0x0142, 0x0143, 0x0144, 0x0145, 0x0146, 0x0147,
+            0x0148, 0x0149, 0x014B, 0x014B, 0x014C, 0x014D, 0x014E, 0x014F,
+    /* 5 */ 0x0150, 0x0151, 0x0153, 0x0153, 0x0154, 0x0155, 0x0156, 0x0157,
+            0x0158, 0x0159, 0x015A, 0x015B, 0x015C, 0x015D, 0x015E, 0x015F,
+    /* 6 */ 0x0160, 0x0161, 0x0162, 0x0163, 0x0164, 0x0165, 0x0167, 0x0167,
+            0x0168, 0x0169, 0x016A, 0x016B, 0x016C, 0x016D, 0x016E, 0x016F,
+    /* 7 */ 0x0170, 0x0171, 0x0172, 0x0173, 0x0174, 0x0175, 0x0176, 0x0177,
+            0x0178, 0x0179, 0x017A, 0x017B, 0x017C, 0x017D, 0x017E, 0x017F,
+    /* 8 */ 0x0180, 0x0253, 0x0183, 0x0183, 0x0185, 0x0185, 0x0254, 0x0188,
+            0x0188, 0x0256, 0x0257, 0x018C, 0x018C, 0x018D, 0x01DD, 0x0259,
+    /* 9 */ 0x025B, 0x0192, 0x0192, 0x0260, 0x0263, 0x0195, 0x0269, 0x0268,
+            0x0199, 0x0199, 0x019A, 0x019B, 0x026F, 0x0272, 0x019E, 0x0275,
+    /* A */ 0x01A0, 0x01A1, 0x01A3, 0x01A3, 0x01A5, 0x01A5, 0x01A6, 0x01A8,
+            0x01A8, 0x0283, 0x01AA, 0x01AB, 0x01AD, 0x01AD, 0x0288, 0x01AF,
+    /* B */ 0x01B0, 0x028A, 0x028B, 0x01B4, 0x01B4, 0x01B6, 0x01B6, 0x0292,
+            0x01B9, 0x01B9, 0x01BA, 0x01BB, 0x01BD, 0x01BD, 0x01BE, 0x01BF,
+    /* C */ 0x01C0, 0x01C1, 0x01C2, 0x01C3, 0x01C6, 0x01C6, 0x01C6, 0x01C9,
+            0x01C9, 0x01C9, 0x01CC, 0x01CC, 0x01CC, 0x01CD, 0x01CE, 0x01CF,
+    /* D */ 0x01D0, 0x01D1, 0x01D2, 0x01D3, 0x01D4, 0x01D5, 0x01D6, 0x01D7,
+            0x01D8, 0x01D9, 0x01DA, 0x01DB, 0x01DC, 0x01DD, 0x01DE, 0x01DF,
+    /* E */ 0x01E0, 0x01E1, 0x01E2, 0x01E3, 0x01E5, 0x01E5, 0x01E6, 0x01E7,
+            0x01E8, 0x01E9, 0x01EA, 0x01EB, 0x01EC, 0x01ED, 0x01EE, 0x01EF,
+    /* F */ 0x01F0, 0x01F3, 0x01F3, 0x01F3, 0x01F4, 0x01F5, 0x01F6, 0x01F7,
+            0x01F8, 0x01F9, 0x01FA, 0x01FB, 0x01FC, 0x01FD, 0x01FE, 0x01FF,
+
+    // Table 3 (for high byte 0x03)
+
+    /* 0 */ 0x0300, 0x0301, 0x0302, 0x0303, 0x0304, 0x0305, 0x0306, 0x0307,
+            0x0308, 0x0309, 0x030A, 0x030B, 0x030C, 0x030D, 0x030E, 0x030F,
+    /* 1 */ 0x0310, 0x0311, 0x0312, 0x0313, 0x0314, 0x0315, 0x0316, 0x0317,
+            0x0318, 0x0319, 0x031A, 0x031B, 0x031C, 0x031D, 0x031E, 0x031F,
+    /* 2 */ 0x0320, 0x0321, 0x0322, 0x0323, 0x0324, 0x0325, 0x0326, 0x0327,
+            0x0328, 0x0329, 0x032A, 0x032B, 0x032C, 0x032D, 0x032E, 0x032F,
+    /* 3 */ 0x0330, 0x0331, 0x0332, 0x0333, 0x0334, 0x0335, 0x0336, 0x0337,
+            0x0338, 0x0339, 0x033A, 0x033B, 0x033C, 0x033D, 0x033E, 0x033F,
+    /* 4 */ 0x0340, 0x0341, 0x0342, 0x0343, 0x0344, 0x0345, 0x0346, 0x0347,
+            0x0348, 0x0349, 0x034A, 0x034B, 0x034C, 0x034D, 0x034E, 0x034F,
+    /* 5 */ 0x0350, 0x0351, 0x0352, 0x0353, 0x0354, 0x0355, 0x0356, 0x0357,
+            0x0358, 0x0359, 0x035A, 0x035B, 0x035C, 0x035D, 0x035E, 0x035F,
+    /* 6 */ 0x0360, 0x0361, 0x0362, 0x0363, 0x0364, 0x0365, 0x0366, 0x0367,
+            0x0368, 0x0369, 0x036A, 0x036B, 0x036C, 0x036D, 0x036E, 0x036F,
+    /* 7 */ 0x0370, 0x0371, 0x0372, 0x0373, 0x0374, 0x0375, 0x0376, 0x0377,
+            0x0378, 0x0379, 0x037A, 0x037B, 0x037C, 0x037D, 0x037E, 0x037F,
+    /* 8 */ 0x0380, 0x0381, 0x0382, 0x0383, 0x0384, 0x0385, 0x0386, 0x0387,
+            0x0388, 0x0389, 0x038A, 0x038B, 0x038C, 0x038D, 0x038E, 0x038F,
+    /* 9 */ 0x0390, 0x03B1, 0x03B2, 0x03B3, 0x03B4, 0x03B5, 0x03B6, 0x03B7,
+            0x03B8, 0x03B9, 0x03BA, 0x03BB, 0x03BC, 0x03BD, 0x03BE, 0x03BF,
+    /* A */ 0x03C0, 0x03C1, 0x03A2, 0x03C3, 0x03C4, 0x03C5, 0x03C6, 0x03C7,
+            0x03C8, 0x03C9, 0x03AA, 0x03AB, 0x03AC, 0x03AD, 0x03AE, 0x03AF,
+    /* B */ 0x03B0, 0x03B1, 0x03B2, 0x03B3, 0x03B4, 0x03B5, 0x03B6, 0x03B7,
+            0x03B8, 0x03B9, 0x03BA, 0x03BB, 0x03BC, 0x03BD, 0x03BE, 0x03BF,
+    /* C */ 0x03C0, 0x03C1, 0x03C2, 0x03C3, 0x03C4, 0x03C5, 0x03C6, 0x03C7,
+            0x03C8, 0x03C9, 0x03CA, 0x03CB, 0x03CC, 0x03CD, 0x03CE, 0x03CF,
+    /* D */ 0x03D0, 0x03D1, 0x03D2, 0x03D3, 0x03D4, 0x03D5, 0x03D6, 0x03D7,
+            0x03D8, 0x03D9, 0x03DA, 0x03DB, 0x03DC, 0x03DD, 0x03DE, 0x03DF,
+    /* E */ 0x03E0, 0x03E1, 0x03E3, 0x03E3, 0x03E5, 0x03E5, 0x03E7, 0x03E7,
+            0x03E9, 0x03E9, 0x03EB, 0x03EB, 0x03ED, 0x03ED, 0x03EF, 0x03EF,
+    /* F */ 0x03F0, 0x03F1, 0x03F2, 0x03F3, 0x03F4, 0x03F5, 0x03F6, 0x03F7,
+            0x03F8, 0x03F9, 0x03FA, 0x03FB, 0x03FC, 0x03FD, 0x03FE, 0x03FF,
+
+    // Table 4 (for high byte 0x04)
+
+    /* 0 */ 0x0400, 0x0401, 0x0452, 0x0403, 0x0454, 0x0455, 0x0456, 0x0407,
+            0x0458, 0x0459, 0x045A, 0x045B, 0x040C, 0x040D, 0x040E, 0x045F,
+    /* 1 */ 0x0430, 0x0431, 0x0432, 0x0433, 0x0434, 0x0435, 0x0436, 0x0437,
+            0x0438, 0x0419, 0x043A, 0x043B, 0x043C, 0x043D, 0x043E, 0x043F,
+    /* 2 */ 0x0440, 0x0441, 0x0442, 0x0443, 0x0444, 0x0445, 0x0446, 0x0447,
+            0x0448, 0x0449, 0x044A, 0x044B, 0x044C, 0x044D, 0x044E, 0x044F,
+    /* 3 */ 0x0430, 0x0431, 0x0432, 0x0433, 0x0434, 0x0435, 0x0436, 0x0437,
+            0x0438, 0x0439, 0x043A, 0x043B, 0x043C, 0x043D, 0x043E, 0x043F,
+    /* 4 */ 0x0440, 0x0441, 0x0442, 0x0443, 0x0444, 0x0445, 0x0446, 0x0447,
+            0x0448, 0x0449, 0x044A, 0x044B, 0x044C, 0x044D, 0x044E, 0x044F,
+    /* 5 */ 0x0450, 0x0451, 0x0452, 0x0453, 0x0454, 0x0455, 0x0456, 0x0457,
+            0x0458, 0x0459, 0x045A, 0x045B, 0x045C, 0x045D, 0x045E, 0x045F,
+    /* 6 */ 0x0461, 0x0461, 0x0463, 0x0463, 0x0465, 0x0465, 0x0467, 0x0467,
+            0x0469, 0x0469, 0x046B, 0x046B, 0x046D, 0x046D, 0x046F, 0x046F,
+    /* 7 */ 0x0471, 0x0471, 0x0473, 0x0473, 0x0475, 0x0475, 0x0476, 0x0477,
+            0x0479, 0x0479, 0x047B, 0x047B, 0x047D, 0x047D, 0x047F, 0x047F,
+    /* 8 */ 0x0481, 0x0481, 0x0482, 0x0483, 0x0484, 0x0485, 0x0486, 0x0487,
+            0x0488, 0x0489, 0x048A, 0x048B, 0x048C, 0x048D, 0x048E, 0x048F,
+    /* 9 */ 0x0491, 0x0491, 0x0493, 0x0493, 0x0495, 0x0495, 0x0497, 0x0497,
+            0x0499, 0x0499, 0x049B, 0x049B, 0x049D, 0x049D, 0x049F, 0x049F,
+    /* A */ 0x04A1, 0x04A1, 0x04A3, 0x04A3, 0x04A5, 0x04A5, 0x04A7, 0x04A7,
+            0x04A9, 0x04A9, 0x04AB, 0x04AB, 0x04AD, 0x04AD, 0x04AF, 0x04AF,
+    /* B */ 0x04B1, 0x04B1, 0x04B3, 0x04B3, 0x04B5, 0x04B5, 0x04B7, 0x04B7,
+            0x04B9, 0x04B9, 0x04BB, 0x04BB, 0x04BD, 0x04BD, 0x04BF, 0x04BF,
+    /* C */ 0x04C0, 0x04C1, 0x04C2, 0x04C4, 0x04C4, 0x04C5, 0x04C6, 0x04C8,
+            0x04C8, 0x04C9, 0x04CA, 0x04CC, 0x04CC, 0x04CD, 0x04CE, 0x04CF,
+    /* D */ 0x04D0, 0x04D1, 0x04D2, 0x04D3, 0x04D4, 0x04D5, 0x04D6, 0x04D7,
+            0x04D8, 0x04D9, 0x04DA, 0x04DB, 0x04DC, 0x04DD, 0x04DE, 0x04DF,
+    /* E */ 0x04E0, 0x04E1, 0x04E2, 0x04E3, 0x04E4, 0x04E5, 0x04E6, 0x04E7,
+            0x04E8, 0x04E9, 0x04EA, 0x04EB, 0x04EC, 0x04ED, 0x04EE, 0x04EF,
+    /* F */ 0x04F0, 0x04F1, 0x04F2, 0x04F3, 0x04F4, 0x04F5, 0x04F6, 0x04F7,
+            0x04F8, 0x04F9, 0x04FA, 0x04FB, 0x04FC, 0x04FD, 0x04FE, 0x04FF,
+
+    // Table 5 (for high byte 0x05)
+
+    /* 0 */ 0x0500, 0x0501, 0x0502, 0x0503, 0x0504, 0x0505, 0x0506, 0x0507,
+            0x0508, 0x0509, 0x050A, 0x050B, 0x050C, 0x050D, 0x050E, 0x050F,
+    /* 1 */ 0x0510, 0x0511, 0x0512, 0x0513, 0x0514, 0x0515, 0x0516, 0x0517,
+            0x0518, 0x0519, 0x051A, 0x051B, 0x051C, 0x051D, 0x051E, 0x051F,
+    /* 2 */ 0x0520, 0x0521, 0x0522, 0x0523, 0x0524, 0x0525, 0x0526, 0x0527,
+            0x0528, 0x0529, 0x052A, 0x052B, 0x052C, 0x052D, 0x052E, 0x052F,
+    /* 3 */ 0x0530, 0x0561, 0x0562, 0x0563, 0x0564, 0x0565, 0x0566, 0x0567,
+            0x0568, 0x0569, 0x056A, 0x056B, 0x056C, 0x056D, 0x056E, 0x056F,
+    /* 4 */ 0x0570, 0x0571, 0x0572, 0x0573, 0x0574, 0x0575, 0x0576, 0x0577,
+            0x0578, 0x0579, 0x057A, 0x057B, 0x057C, 0x057D, 0x057E, 0x057F,
+    /* 5 */ 0x0580, 0x0581, 0x0582, 0x0583, 0x0584, 0x0585, 0x0586, 0x0557,
+            0x0558, 0x0559, 0x055A, 0x055B, 0x055C, 0x055D, 0x055E, 0x055F,
+    /* 6 */ 0x0560, 0x0561, 0x0562, 0x0563, 0x0564, 0x0565, 0x0566, 0x0567,
+            0x0568, 0x0569, 0x056A, 0x056B, 0x056C, 0x056D, 0x056E, 0x056F,
+    /* 7 */ 0x0570, 0x0571, 0x0572, 0x0573, 0x0574, 0x0575, 0x0576, 0x0577,
+            0x0578, 0x0579, 0x057A, 0x057B, 0x057C, 0x057D, 0x057E, 0x057F,
+    /* 8 */ 0x0580, 0x0581, 0x0582, 0x0583, 0x0584, 0x0585, 0x0586, 0x0587,
+            0x0588, 0x0589, 0x058A, 0x058B, 0x058C, 0x058D, 0x058E, 0x058F,
+    /* 9 */ 0x0590, 0x0591, 0x0592, 0x0593, 0x0594, 0x0595, 0x0596, 0x0597,
+            0x0598, 0x0599, 0x059A, 0x059B, 0x059C, 0x059D, 0x059E, 0x059F,
+    /* A */ 0x05A0, 0x05A1, 0x05A2, 0x05A3, 0x05A4, 0x05A5, 0x05A6, 0x05A7,
+            0x05A8, 0x05A9, 0x05AA, 0x05AB, 0x05AC, 0x05AD, 0x05AE, 0x05AF,
+    /* B */ 0x05B0, 0x05B1, 0x05B2, 0x05B3, 0x05B4, 0x05B5, 0x05B6, 0x05B7,
+            0x05B8, 0x05B9, 0x05BA, 0x05BB, 0x05BC, 0x05BD, 0x05BE, 0x05BF,
+    /* C */ 0x05C0, 0x05C1, 0x05C2, 0x05C3, 0x05C4, 0x05C5, 0x05C6, 0x05C7,
+            0x05C8, 0x05C9, 0x05CA, 0x05CB, 0x05CC, 0x05CD, 0x05CE, 0x05CF,
+    /* D */ 0x05D0, 0x05D1, 0x05D2, 0x05D3, 0x05D4, 0x05D5, 0x05D6, 0x05D7,
+            0x05D8, 0x05D9, 0x05DA, 0x05DB, 0x05DC, 0x05DD, 0x05DE, 0x05DF,
+    /* E */ 0x05E0, 0x05E1, 0x05E2, 0x05E3, 0x05E4, 0x05E5, 0x05E6, 0x05E7,
+            0x05E8, 0x05E9, 0x05EA, 0x05EB, 0x05EC, 0x05ED, 0x05EE, 0x05EF,
+    /* F */ 0x05F0, 0x05F1, 0x05F2, 0x05F3, 0x05F4, 0x05F5, 0x05F6, 0x05F7,
+            0x05F8, 0x05F9, 0x05FA, 0x05FB, 0x05FC, 0x05FD, 0x05FE, 0x05FF,
+
+    // Table 6 (for high byte 0x10)
+
+    /* 0 */ 0x1000, 0x1001, 0x1002, 0x1003, 0x1004, 0x1005, 0x1006, 0x1007,
+            0x1008, 0x1009, 0x100A, 0x100B, 0x100C, 0x100D, 0x100E, 0x100F,
+    /* 1 */ 0x1010, 0x1011, 0x1012, 0x1013, 0x1014, 0x1015, 0x1016, 0x1017,
+            0x1018, 0x1019, 0x101A, 0x101B, 0x101C, 0x101D, 0x101E, 0x101F,
+    /* 2 */ 0x1020, 0x1021, 0x1022, 0x1023, 0x1024, 0x1025, 0x1026, 0x1027,
+            0x1028, 0x1029, 0x102A, 0x102B, 0x102C, 0x102D, 0x102E, 0x102F,
+    /* 3 */ 0x1030, 0x1031, 0x1032, 0x1033, 0x1034, 0x1035, 0x1036, 0x1037,
+            0x1038, 0x1039, 0x103A, 0x103B, 0x103C, 0x103D, 0x103E, 0x103F,
+    /* 4 */ 0x1040, 0x1041, 0x1042, 0x1043, 0x1044, 0x1045, 0x1046, 0x1047,
+            0x1048, 0x1049, 0x104A, 0x104B, 0x104C, 0x104D, 0x104E, 0x104F,
+    /* 5 */ 0x1050, 0x1051, 0x1052, 0x1053, 0x1054, 0x1055, 0x1056, 0x1057,
+            0x1058, 0x1059, 0x105A, 0x105B, 0x105C, 0x105D, 0x105E, 0x105F,
+    /* 6 */ 0x1060, 0x1061, 0x1062, 0x1063, 0x1064, 0x1065, 0x1066, 0x1067,
+            0x1068, 0x1069, 0x106A, 0x106B, 0x106C, 0x106D, 0x106E, 0x106F,
+    /* 7 */ 0x1070, 0x1071, 0x1072, 0x1073, 0x1074, 0x1075, 0x1076, 0x1077,
+            0x1078, 0x1079, 0x107A, 0x107B, 0x107C, 0x107D, 0x107E, 0x107F,
+    /* 8 */ 0x1080, 0x1081, 0x1082, 0x1083, 0x1084, 0x1085, 0x1086, 0x1087,
+            0x1088, 0x1089, 0x108A, 0x108B, 0x108C, 0x108D, 0x108E, 0x108F,
+    /* 9 */ 0x1090, 0x1091, 0x1092, 0x1093, 0x1094, 0x1095, 0x1096, 0x1097,
+            0x1098, 0x1099, 0x109A, 0x109B, 0x109C, 0x109D, 0x109E, 0x109F,
+    /* A */ 0x10D0, 0x10D1, 0x10D2, 0x10D3, 0x10D4, 0x10D5, 0x10D6, 0x10D7,
+            0x10D8, 0x10D9, 0x10DA, 0x10DB, 0x10DC, 0x10DD, 0x10DE, 0x10DF,
+    /* B */ 0x10E0, 0x10E1, 0x10E2, 0x10E3, 0x10E4, 0x10E5, 0x10E6, 0x10E7,
+            0x10E8, 0x10E9, 0x10EA, 0x10EB, 0x10EC, 0x10ED, 0x10EE, 0x10EF,
+    /* C */ 0x10F0, 0x10F1, 0x10F2, 0x10F3, 0x10F4, 0x10F5, 0x10C6, 0x10C7,
+            0x10C8, 0x10C9, 0x10CA, 0x10CB, 0x10CC, 0x10CD, 0x10CE, 0x10CF,
+    /* D */ 0x10D0, 0x10D1, 0x10D2, 0x10D3, 0x10D4, 0x10D5, 0x10D6, 0x10D7,
+            0x10D8, 0x10D9, 0x10DA, 0x10DB, 0x10DC, 0x10DD, 0x10DE, 0x10DF,
+    /* E */ 0x10E0, 0x10E1, 0x10E2, 0x10E3, 0x10E4, 0x10E5, 0x10E6, 0x10E7,
+            0x10E8, 0x10E9, 0x10EA, 0x10EB, 0x10EC, 0x10ED, 0x10EE, 0x10EF,
+    /* F */ 0x10F0, 0x10F1, 0x10F2, 0x10F3, 0x10F4, 0x10F5, 0x10F6, 0x10F7,
+            0x10F8, 0x10F9, 0x10FA, 0x10FB, 0x10FC, 0x10FD, 0x10FE, 0x10FF,
+
+    // Table 7 (for high byte 0x20)
+
+    /* 0 */ 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006, 0x2007,
+            0x2008, 0x2009, 0x200A, 0x200B, 0x0000, 0x0000, 0x0000, 0x0000,
+    /* 1 */ 0x2010, 0x2011, 0x2012, 0x2013, 0x2014, 0x2015, 0x2016, 0x2017,
+            0x2018, 0x2019, 0x201A, 0x201B, 0x201C, 0x201D, 0x201E, 0x201F,
+    /* 2 */ 0x2020, 0x2021, 0x2022, 0x2023, 0x2024, 0x2025, 0x2026, 0x2027,
+            0x2028, 0x2029, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x202F,
+    /* 3 */ 0x2030, 0x2031, 0x2032, 0x2033, 0x2034, 0x2035, 0x2036, 0x2037,
+            0x2038, 0x2039, 0x203A, 0x203B, 0x203C, 0x203D, 0x203E, 0x203F,
+    /* 4 */ 0x2040, 0x2041, 0x2042, 0x2043, 0x2044, 0x2045, 0x2046, 0x2047,
+            0x2048, 0x2049, 0x204A, 0x204B, 0x204C, 0x204D, 0x204E, 0x204F,
+    /* 5 */ 0x2050, 0x2051, 0x2052, 0x2053, 0x2054, 0x2055, 0x2056, 0x2057,
+            0x2058, 0x2059, 0x205A, 0x205B, 0x205C, 0x205D, 0x205E, 0x205F,
+    /* 6 */ 0x2060, 0x2061, 0x2062, 0x2063, 0x2064, 0x2065, 0x2066, 0x2067,
+            0x2068, 0x2069, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+    /* 7 */ 0x2070, 0x2071, 0x2072, 0x2073, 0x2074, 0x2075, 0x2076, 0x2077,
+            0x2078, 0x2079, 0x207A, 0x207B, 0x207C, 0x207D, 0x207E, 0x207F,
+    /* 8 */ 0x2080, 0x2081, 0x2082, 0x2083, 0x2084, 0x2085, 0x2086, 0x2087,
+            0x2088, 0x2089, 0x208A, 0x208B, 0x208C, 0x208D, 0x208E, 0x208F,
+    /* 9 */ 0x2090, 0x2091, 0x2092, 0x2093, 0x2094, 0x2095, 0x2096, 0x2097,
+            0x2098, 0x2099, 0x209A, 0x209B, 0x209C, 0x209D, 0x209E, 0x209F,
+    /* A */ 0x20A0, 0x20A1, 0x20A2, 0x20A3, 0x20A4, 0x20A5, 0x20A6, 0x20A7,
+            0x20A8, 0x20A9, 0x20AA, 0x20AB, 0x20AC, 0x20AD, 0x20AE, 0x20AF,
+    /* B */ 0x20B0, 0x20B1, 0x20B2, 0x20B3, 0x20B4, 0x20B5, 0x20B6, 0x20B7,
+            0x20B8, 0x20B9, 0x20BA, 0x20BB, 0x20BC, 0x20BD, 0x20BE, 0x20BF,
+    /* C */ 0x20C0, 0x20C1, 0x20C2, 0x20C3, 0x20C4, 0x20C5, 0x20C6, 0x20C7,
+            0x20C8, 0x20C9, 0x20CA, 0x20CB, 0x20CC, 0x20CD, 0x20CE, 0x20CF,
+    /* D */ 0x20D0, 0x20D1, 0x20D2, 0x20D3, 0x20D4, 0x20D5, 0x20D6, 0x20D7,
+            0x20D8, 0x20D9, 0x20DA, 0x20DB, 0x20DC, 0x20DD, 0x20DE, 0x20DF,
+    /* E */ 0x20E0, 0x20E1, 0x20E2, 0x20E3, 0x20E4, 0x20E5, 0x20E6, 0x20E7,
+            0x20E8, 0x20E9, 0x20EA, 0x20EB, 0x20EC, 0x20ED, 0x20EE, 0x20EF,
+    /* F */ 0x20F0, 0x20F1, 0x20F2, 0x20F3, 0x20F4, 0x20F5, 0x20F6, 0x20F7,
+            0x20F8, 0x20F9, 0x20FA, 0x20FB, 0x20FC, 0x20FD, 0x20FE, 0x20FF,
+
+    // Table 8 (for high byte 0x21)
+
+    /* 0 */ 0x2100, 0x2101, 0x2102, 0x2103, 0x2104, 0x2105, 0x2106, 0x2107,
+            0x2108, 0x2109, 0x210A, 0x210B, 0x210C, 0x210D, 0x210E, 0x210F,
+    /* 1 */ 0x2110, 0x2111, 0x2112, 0x2113, 0x2114, 0x2115, 0x2116, 0x2117,
+            0x2118, 0x2119, 0x211A, 0x211B, 0x211C, 0x211D, 0x211E, 0x211F,
+    /* 2 */ 0x2120, 0x2121, 0x2122, 0x2123, 0x2124, 0x2125, 0x2126, 0x2127,
+            0x2128, 0x2129, 0x212A, 0x212B, 0x212C, 0x212D, 0x212E, 0x212F,
+    /* 3 */ 0x2130, 0x2131, 0x2132, 0x2133, 0x2134, 0x2135, 0x2136, 0x2137,
+            0x2138, 0x2139, 0x213A, 0x213B, 0x213C, 0x213D, 0x213E, 0x213F,
+    /* 4 */ 0x2140, 0x2141, 0x2142, 0x2143, 0x2144, 0x2145, 0x2146, 0x2147,
+            0x2148, 0x2149, 0x214A, 0x214B, 0x214C, 0x214D, 0x214E, 0x214F,
+    /* 5 */ 0x2150, 0x2151, 0x2152, 0x2153, 0x2154, 0x2155, 0x2156, 0x2157,
+            0x2158, 0x2159, 0x215A, 0x215B, 0x215C, 0x215D, 0x215E, 0x215F,
+    /* 6 */ 0x2170, 0x2171, 0x2172, 0x2173, 0x2174, 0x2175, 0x2176, 0x2177,
+            0x2178, 0x2179, 0x217A, 0x217B, 0x217C, 0x217D, 0x217E, 0x217F,
+    /* 7 */ 0x2170, 0x2171, 0x2172, 0x2173, 0x2174, 0x2175, 0x2176, 0x2177,
+            0x2178, 0x2179, 0x217A, 0x217B, 0x217C, 0x217D, 0x217E, 0x217F,
+    /* 8 */ 0x2180, 0x2181, 0x2182, 0x2183, 0x2184, 0x2185, 0x2186, 0x2187,
+            0x2188, 0x2189, 0x218A, 0x218B, 0x218C, 0x218D, 0x218E, 0x218F,
+    /* 9 */ 0x2190, 0x2191, 0x2192, 0x2193, 0x2194, 0x2195, 0x2196, 0x2197,
+            0x2198, 0x2199, 0x219A, 0x219B, 0x219C, 0x219D, 0x219E, 0x219F,
+    /* A */ 0x21A0, 0x21A1, 0x21A2, 0x21A3, 0x21A4, 0x21A5, 0x21A6, 0x21A7,
+            0x21A8, 0x21A9, 0x21AA, 0x21AB, 0x21AC, 0x21AD, 0x21AE, 0x21AF,
+    /* B */ 0x21B0, 0x21B1, 0x21B2, 0x21B3, 0x21B4, 0x21B5, 0x21B6, 0x21B7,
+            0x21B8, 0x21B9, 0x21BA, 0x21BB, 0x21BC, 0x21BD, 0x21BE, 0x21BF,
+    /* C */ 0x21C0, 0x21C1, 0x21C2, 0x21C3, 0x21C4, 0x21C5, 0x21C6, 0x21C7,
+            0x21C8, 0x21C9, 0x21CA, 0x21CB, 0x21CC, 0x21CD, 0x21CE, 0x21CF,
+    /* D */ 0x21D0, 0x21D1, 0x21D2, 0x21D3, 0x21D4, 0x21D5, 0x21D6, 0x21D7,
+            0x21D8, 0x21D9, 0x21DA, 0x21DB, 0x21DC, 0x21DD, 0x21DE, 0x21DF,
+    /* E */ 0x21E0, 0x21E1, 0x21E2, 0x21E3, 0x21E4, 0x21E5, 0x21E6, 0x21E7,
+            0x21E8, 0x21E9, 0x21EA, 0x21EB, 0x21EC, 0x21ED, 0x21EE, 0x21EF,
+    /* F */ 0x21F0, 0x21F1, 0x21F2, 0x21F3, 0x21F4, 0x21F5, 0x21F6, 0x21F7,
+            0x21F8, 0x21F9, 0x21FA, 0x21FB, 0x21FC, 0x21FD, 0x21FE, 0x21FF,
+
+    // Table 9 (for high byte 0xFE)
+
+    /* 0 */ 0xFE00, 0xFE01, 0xFE02, 0xFE03, 0xFE04, 0xFE05, 0xFE06, 0xFE07,
+            0xFE08, 0xFE09, 0xFE0A, 0xFE0B, 0xFE0C, 0xFE0D, 0xFE0E, 0xFE0F,
+    /* 1 */ 0xFE10, 0xFE11, 0xFE12, 0xFE13, 0xFE14, 0xFE15, 0xFE16, 0xFE17,
+            0xFE18, 0xFE19, 0xFE1A, 0xFE1B, 0xFE1C, 0xFE1D, 0xFE1E, 0xFE1F,
+    /* 2 */ 0xFE20, 0xFE21, 0xFE22, 0xFE23, 0xFE24, 0xFE25, 0xFE26, 0xFE27,
+            0xFE28, 0xFE29, 0xFE2A, 0xFE2B, 0xFE2C, 0xFE2D, 0xFE2E, 0xFE2F,
+    /* 3 */ 0xFE30, 0xFE31, 0xFE32, 0xFE33, 0xFE34, 0xFE35, 0xFE36, 0xFE37,
+            0xFE38, 0xFE39, 0xFE3A, 0xFE3B, 0xFE3C, 0xFE3D, 0xFE3E, 0xFE3F,
+    /* 4 */ 0xFE40, 0xFE41, 0xFE42, 0xFE43, 0xFE44, 0xFE45, 0xFE46, 0xFE47,
+            0xFE48, 0xFE49, 0xFE4A, 0xFE4B, 0xFE4C, 0xFE4D, 0xFE4E, 0xFE4F,
+    /* 5 */ 0xFE50, 0xFE51, 0xFE52, 0xFE53, 0xFE54, 0xFE55, 0xFE56, 0xFE57,
+            0xFE58, 0xFE59, 0xFE5A, 0xFE5B, 0xFE5C, 0xFE5D, 0xFE5E, 0xFE5F,
+    /* 6 */ 0xFE60, 0xFE61, 0xFE62, 0xFE63, 0xFE64, 0xFE65, 0xFE66, 0xFE67,
+            0xFE68, 0xFE69, 0xFE6A, 0xFE6B, 0xFE6C, 0xFE6D, 0xFE6E, 0xFE6F,
+    /* 7 */ 0xFE70, 0xFE71, 0xFE72, 0xFE73, 0xFE74, 0xFE75, 0xFE76, 0xFE77,
+            0xFE78, 0xFE79, 0xFE7A, 0xFE7B, 0xFE7C, 0xFE7D, 0xFE7E, 0xFE7F,
+    /* 8 */ 0xFE80, 0xFE81, 0xFE82, 0xFE83, 0xFE84, 0xFE85, 0xFE86, 0xFE87,
+            0xFE88, 0xFE89, 0xFE8A, 0xFE8B, 0xFE8C, 0xFE8D, 0xFE8E, 0xFE8F,
+    /* 9 */ 0xFE90, 0xFE91, 0xFE92, 0xFE93, 0xFE94, 0xFE95, 0xFE96, 0xFE97,
+            0xFE98, 0xFE99, 0xFE9A, 0xFE9B, 0xFE9C, 0xFE9D, 0xFE9E, 0xFE9F,
+    /* A */ 0xFEA0, 0xFEA1, 0xFEA2, 0xFEA3, 0xFEA4, 0xFEA5, 0xFEA6, 0xFEA7,
+            0xFEA8, 0xFEA9, 0xFEAA, 0xFEAB, 0xFEAC, 0xFEAD, 0xFEAE, 0xFEAF,
+    /* B */ 0xFEB0, 0xFEB1, 0xFEB2, 0xFEB3, 0xFEB4, 0xFEB5, 0xFEB6, 0xFEB7,
+            0xFEB8, 0xFEB9, 0xFEBA, 0xFEBB, 0xFEBC, 0xFEBD, 0xFEBE, 0xFEBF,
+    /* C */ 0xFEC0, 0xFEC1, 0xFEC2, 0xFEC3, 0xFEC4, 0xFEC5, 0xFEC6, 0xFEC7,
+            0xFEC8, 0xFEC9, 0xFECA, 0xFECB, 0xFECC, 0xFECD, 0xFECE, 0xFECF,
+    /* D */ 0xFED0, 0xFED1, 0xFED2, 0xFED3, 0xFED4, 0xFED5, 0xFED6, 0xFED7,
+            0xFED8, 0xFED9, 0xFEDA, 0xFEDB, 0xFEDC, 0xFEDD, 0xFEDE, 0xFEDF,
+    /* E */ 0xFEE0, 0xFEE1, 0xFEE2, 0xFEE3, 0xFEE4, 0xFEE5, 0xFEE6, 0xFEE7,
+            0xFEE8, 0xFEE9, 0xFEEA, 0xFEEB, 0xFEEC, 0xFEED, 0xFEEE, 0xFEEF,
+    /* F */ 0xFEF0, 0xFEF1, 0xFEF2, 0xFEF3, 0xFEF4, 0xFEF5, 0xFEF6, 0xFEF7,
+            0xFEF8, 0xFEF9, 0xFEFA, 0xFEFB, 0xFEFC, 0xFEFD, 0xFEFE, 0x0000,
+
+    // Table 10 (for high byte 0xFF)
+
+    /* 0 */ 0xFF00, 0xFF01, 0xFF02, 0xFF03, 0xFF04, 0xFF05, 0xFF06, 0xFF07,
+            0xFF08, 0xFF09, 0xFF0A, 0xFF0B, 0xFF0C, 0xFF0D, 0xFF0E, 0xFF0F,
+    /* 1 */ 0xFF10, 0xFF11, 0xFF12, 0xFF13, 0xFF14, 0xFF15, 0xFF16, 0xFF17,
+            0xFF18, 0xFF19, 0xFF1A, 0xFF1B, 0xFF1C, 0xFF1D, 0xFF1E, 0xFF1F,
+    /* 2 */ 0xFF20, 0xFF41, 0xFF42, 0xFF43, 0xFF44, 0xFF45, 0xFF46, 0xFF47,
+            0xFF48, 0xFF49, 0xFF4A, 0xFF4B, 0xFF4C, 0xFF4D, 0xFF4E, 0xFF4F,
+    /* 3 */ 0xFF50, 0xFF51, 0xFF52, 0xFF53, 0xFF54, 0xFF55, 0xFF56, 0xFF57,
+            0xFF58, 0xFF59, 0xFF5A, 0xFF3B, 0xFF3C, 0xFF3D, 0xFF3E, 0xFF3F,
+    /* 4 */ 0xFF40, 0xFF41, 0xFF42, 0xFF43, 0xFF44, 0xFF45, 0xFF46, 0xFF47,
+            0xFF48, 0xFF49, 0xFF4A, 0xFF4B, 0xFF4C, 0xFF4D, 0xFF4E, 0xFF4F,
+    /* 5 */ 0xFF50, 0xFF51, 0xFF52, 0xFF53, 0xFF54, 0xFF55, 0xFF56, 0xFF57,
+            0xFF58, 0xFF59, 0xFF5A, 0xFF5B, 0xFF5C, 0xFF5D, 0xFF5E, 0xFF5F,
+    /* 6 */ 0xFF60, 0xFF61, 0xFF62, 0xFF63, 0xFF64, 0xFF65, 0xFF66, 0xFF67,
+            0xFF68, 0xFF69, 0xFF6A, 0xFF6B, 0xFF6C, 0xFF6D, 0xFF6E, 0xFF6F,
+    /* 7 */ 0xFF70, 0xFF71, 0xFF72, 0xFF73, 0xFF74, 0xFF75, 0xFF76, 0xFF77,
+            0xFF78, 0xFF79, 0xFF7A, 0xFF7B, 0xFF7C, 0xFF7D, 0xFF7E, 0xFF7F,
+    /* 8 */ 0xFF80, 0xFF81, 0xFF82, 0xFF83, 0xFF84, 0xFF85, 0xFF86, 0xFF87,
+            0xFF88, 0xFF89, 0xFF8A, 0xFF8B, 0xFF8C, 0xFF8D, 0xFF8E, 0xFF8F,
+    /* 9 */ 0xFF90, 0xFF91, 0xFF92, 0xFF93, 0xFF94, 0xFF95, 0xFF96, 0xFF97,
+            0xFF98, 0xFF99, 0xFF9A, 0xFF9B, 0xFF9C, 0xFF9D, 0xFF9E, 0xFF9F,
+    /* A */ 0xFFA0, 0xFFA1, 0xFFA2, 0xFFA3, 0xFFA4, 0xFFA5, 0xFFA6, 0xFFA7,
+            0xFFA8, 0xFFA9, 0xFFAA, 0xFFAB, 0xFFAC, 0xFFAD, 0xFFAE, 0xFFAF,
+    /* B */ 0xFFB0, 0xFFB1, 0xFFB2, 0xFFB3, 0xFFB4, 0xFFB5, 0xFFB6, 0xFFB7,
+            0xFFB8, 0xFFB9, 0xFFBA, 0xFFBB, 0xFFBC, 0xFFBD, 0xFFBE, 0xFFBF,
+    /* C */ 0xFFC0, 0xFFC1, 0xFFC2, 0xFFC3, 0xFFC4, 0xFFC5, 0xFFC6, 0xFFC7,
+            0xFFC8, 0xFFC9, 0xFFCA, 0xFFCB, 0xFFCC, 0xFFCD, 0xFFCE, 0xFFCF,
+    /* D */ 0xFFD0, 0xFFD1, 0xFFD2, 0xFFD3, 0xFFD4, 0xFFD5, 0xFFD6, 0xFFD7,
+            0xFFD8, 0xFFD9, 0xFFDA, 0xFFDB, 0xFFDC, 0xFFDD, 0xFFDE, 0xFFDF,
+    /* E */ 0xFFE0, 0xFFE1, 0xFFE2, 0xFFE3, 0xFFE4, 0xFFE5, 0xFFE6, 0xFFE7,
+            0xFFE8, 0xFFE9, 0xFFEA, 0xFFEB, 0xFFEC, 0xFFED, 0xFFEE, 0xFFEF,
+    /* F */ 0xFFF0, 0xFFF1, 0xFFF2, 0xFFF3, 0xFFF4, 0xFFF5, 0xFFF6, 0xFFF7,
+            0xFFF8, 0xFFF9, 0xFFFA, 0xFFFB, 0xFFFC, 0xFFFD, 0xFFFE, 0xFFFF,
+};
diff --git a/fs/hfsplus/unicode.c b/fs/hfsplus/unicode.c
new file mode 100644
index 00000000000000..6a6b3a7e6e5b31
--- /dev/null
+++ b/fs/hfsplus/unicode.c
@@ -0,0 +1,126 @@
+/*
+ *  linux/fs/hfsplus/unicode.c
+ *
+ * Copyright (C) 2001
+ * Brad Boyer (flar@allandria.com)
+ * (C) 2003 Ardis Technologies <roman@ardistech.com>
+ *
+ * Handler routines for unicode strings
+ */
+
+#include <linux/types.h>
+#include <linux/nls.h>
+#include "hfsplus_fs.h"
+#include "hfsplus_raw.h"
+
+/* Fold the case of a unicode char, given the 16 bit value */
+/* Returns folded char, or 0 if ignorable */
+static inline u16 case_fold(u16 c)
+{
+        u16 tmp;
+
+        tmp = case_fold_table[(c>>8)];
+        if (tmp)
+                tmp = case_fold_table[tmp + (c & 0xFF)];
+        else
+                tmp = c;
+        return tmp;
+}
+
+/* Compare unicode strings, return values like normal strcmp */
+int hfsplus_unistrcmp(const hfsplus_unistr *s1, const hfsplus_unistr *s2)
+{
+	u16 len1, len2, c1, c2;
+	const hfsplus_unichr *p1, *p2;
+
+	len1 = be16_to_cpu(s1->length);
+	len2 = be16_to_cpu(s2->length);
+	p1 = s1->unicode;
+	p2 = s2->unicode;
+
+	while (1) {
+		c1 = c2 = 0;
+
+		while (len1 && !c1) {
+			c1 = case_fold(be16_to_cpu(*p1));
+			p1++;
+			len1--;
+		}
+		while (len2 && !c2) {
+			c2 = case_fold(be16_to_cpu(*p2));
+			p2++;
+			len2--;
+		}
+
+		if (c1 != c2)
+			return (c1 < c2) ? -1 : 1;
+		if (!c1 && !c2)
+			return 0;
+	}
+}
+
+int hfsplus_uni2asc(const hfsplus_unistr *ustr, char *astr, int *len)
+{
+	const hfsplus_unichr *ip;
+	u8 *op;
+	u16 ustrlen, cc;
+	int size, tmp;
+
+	op = astr;
+	ip = ustr->unicode;
+	ustrlen = be16_to_cpu(ustr->length);
+	tmp = *len;
+	while (ustrlen > 0 && tmp > 0) {
+		cc = be16_to_cpu(*ip);
+		if (!cc || cc > 0x7f) {
+			size = utf8_wctomb(op, cc ? cc : 0x2400, tmp);
+			if (size == -1) {
+				/* ignore */
+			} else {
+				op += size;
+				tmp -= size;
+			}
+		} else {
+			*op++ = (u8) cc;
+			tmp--;
+		}
+		ip++;
+		ustrlen--;
+	}
+	*len = (char *)op - astr;
+	if (ustrlen)
+		return -ENAMETOOLONG;
+	return 0;
+}
+
+int hfsplus_asc2uni(hfsplus_unistr *ustr, const char *astr, int len)
+{
+	int tmp;
+	wchar_t c;
+	u16 outlen = 0;
+
+	while (outlen <= HFSPLUS_MAX_STRLEN && len > 0) {
+		if (*astr & 0x80) {
+			tmp = utf8_mbtowc(&c, astr, len);
+			if (tmp < 0) {
+				astr++;
+				len--;
+				continue;
+			} else {
+				astr += tmp;
+				len -= tmp;
+			}
+			if (c == 0x2400)
+				c = 0;
+		} else {
+			c = *astr++;
+			len--;
+		}
+		ustr->unicode[outlen] = cpu_to_be16(c);
+		outlen++;
+	}
+	ustr->length = cpu_to_be16(outlen);
+	if (len > 0)
+		return -ENAMETOOLONG;
+	return 0;
+}
diff --git a/fs/hfsplus/wrapper.c b/fs/hfsplus/wrapper.c
new file mode 100644
index 00000000000000..71e5818a074c33
--- /dev/null
+++ b/fs/hfsplus/wrapper.c
@@ -0,0 +1,149 @@
+/*
+ *  linux/fs/hfsplus/wrapper.c
+ *
+ * Copyright (C) 2001
+ * Brad Boyer (flar@allandria.com)
+ * (C) 2003 Ardis Technologies <roman@ardistech.com>
+ *
+ * Handling of HFS wrappers around HFS+ volumes
+ */
+
+#include <linux/fs.h>
+#include <linux/blkdev.h>
+#include <linux/version.h>
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
+#include <linux/buffer_head.h>
+#endif
+#include <asm/unaligned.h>
+
+#include "hfsplus_fs.h"
+#include "hfsplus_raw.h"
+
+struct hfsplus_wd {
+	u32 ablk_size;
+	u16 ablk_start;
+	u16 embed_start;
+	u16 embed_count;
+};
+
+static int hfsplus_read_mdb(unsigned char *bufptr, struct hfsplus_wd *wd)
+{
+	u32 extent;
+	u16 attrib;
+
+	if (be16_to_cpu(*(u16 *)(bufptr + HFSP_WRAPOFF_EMBEDSIG)) != HFSPLUS_VOLHEAD_SIG)
+		return 0;
+
+	attrib = be16_to_cpu(*(u16 *)(bufptr + HFSP_WRAPOFF_ATTRIB));
+	if (!(attrib & HFSP_WRAP_ATTRIB_SLOCK) ||
+	   !(attrib & HFSP_WRAP_ATTRIB_SPARED))
+		return 0;
+
+	wd->ablk_size = be32_to_cpu(*(u32 *)(bufptr + HFSP_WRAPOFF_ABLKSIZE));
+	if (wd->ablk_size < HFSPLUS_SECTOR_SIZE)
+		return 0;
+	if (wd->ablk_size % HFSPLUS_SECTOR_SIZE)
+		return 0;
+	wd->ablk_start = be16_to_cpu(*(u16 *)(bufptr + HFSP_WRAPOFF_ABLKSTART));
+
+	extent = be32_to_cpu(get_unaligned((u32 *)(bufptr + HFSP_WRAPOFF_EMBEDEXT)));
+	wd->embed_start = (extent >> 16) & 0xFFFF;
+	wd->embed_count = extent & 0xFFFF;
+
+	return 1;
+}
+
+/* Find the volume header and fill in some minimum bits in superblock */
+/* Takes in super block, returns true if good data read */
+int hfsplus_read_wrapper(struct super_block *sb)
+{
+	struct buffer_head *bh;
+	struct hfsplus_vh *vhdr;
+	char *bufptr;
+	unsigned long block, offset, vhsect;
+	struct hfsplus_wd wd;
+	u32 blocksize, blockoffset;
+	u16 sig;
+
+	blocksize = sb_min_blocksize(sb, HFSPLUS_SECTOR_SIZE);
+	if (!blocksize) {
+		printk("HFS+-fs: unable to configure block size\n");
+		return -EINVAL;
+	}
+
+	block = (HFSPLUS_VOLHEAD_SECTOR * HFSPLUS_SECTOR_SIZE) / blocksize;
+	offset = (HFSPLUS_VOLHEAD_SECTOR * HFSPLUS_SECTOR_SIZE) % blocksize;
+
+	bh = sb_bread(sb, block);
+	if (!bh) {
+		printk("HFS+-fs: unable to read VHDR or MDB\n");
+		return -EIO;
+	}
+
+	bufptr = bh->b_data + offset;
+	sig = be16_to_cpu(*(u16 *)(bufptr + HFSP_WRAPOFF_SIG));
+	if (sig == HFSP_WRAP_MAGIC) {
+		if (!hfsplus_read_mdb(bufptr, &wd))
+			goto error;
+		vhsect = (wd.ablk_start + wd.embed_start * (wd.ablk_size >> 9))
+			+ HFSPLUS_VOLHEAD_SECTOR;
+		block = (vhsect * HFSPLUS_SECTOR_SIZE) / blocksize;
+		offset = (vhsect * HFSPLUS_SECTOR_SIZE) % blocksize;
+		brelse(bh);
+		bh = sb_bread(sb, block);
+		if (!bh) {
+			printk("HFS+-fs: unable to read VHDR\n");
+			return -EIO;
+		}
+		HFSPLUS_SB(sb).sect_count = wd.embed_count * (wd.ablk_size >> 9);
+	} else {
+		wd.ablk_start = 0;
+		wd.ablk_size = blocksize;
+		wd.embed_start = 0;
+		HFSPLUS_SB(sb).sect_count = sb->s_bdev->bd_inode->i_size >> 9;
+	}
+	vhdr = (struct hfsplus_vh *)(bh->b_data + offset);
+	if (be16_to_cpu(vhdr->signature) != HFSPLUS_VOLHEAD_SIG)
+		goto error;
+	blocksize = be32_to_cpu(vhdr->blocksize);
+	brelse(bh);
+
+	/* block size must be at least as large as a sector
+	 * and a multiple of 2
+	 */
+	if (blocksize < HFSPLUS_SECTOR_SIZE ||
+	    ((blocksize - 1) & blocksize))
+		return -EINVAL;
+
+	/* block offset must be a multiple of the block size */
+	blockoffset = wd.ablk_start + wd.embed_start * (wd.ablk_size >> 9);
+	if (blockoffset % (blocksize / HFSPLUS_SECTOR_SIZE)) {
+		printk("HFS+-fs: embedded blocks not aligned with wrapper\n");
+		return -EINVAL;
+	}
+	blockoffset /= blocksize / HFSPLUS_SECTOR_SIZE;
+	HFSPLUS_SB(sb).blockoffset = blockoffset;
+
+	if (sb_set_blocksize(sb, blocksize) != blocksize)
+		return -EINVAL;
+
+	block = blockoffset + HFSPLUS_VOLHEAD_SECTOR /
+		(blocksize / HFSPLUS_SECTOR_SIZE);
+	offset = (HFSPLUS_VOLHEAD_SECTOR * HFSPLUS_SECTOR_SIZE) % blocksize;
+	bh = sb_bread(sb, block);
+	if (!bh) {
+		printk("HFS+-fs: unable to read VHDR or MDB\n");
+		return -EIO;
+	}
+	vhdr = (struct hfsplus_vh *)(bh->b_data + offset);
+	/* should still be the same... */
+	if (be16_to_cpu(vhdr->signature) != HFSPLUS_VOLHEAD_SIG)
+		goto error;
+	HFSPLUS_SB(sb).s_vhbh = bh;
+	HFSPLUS_SB(sb).s_vhdr = vhdr;
+
+	return 0;
+ error:
+	brelse(bh);
+	return -EINVAL;
+}
diff --git a/fs/hpfs/Makefile b/fs/hpfs/Makefile
new file mode 100644
index 00000000000000..b2394dedd851bf
--- /dev/null
+++ b/fs/hpfs/Makefile
@@ -0,0 +1,6 @@
+O_TARGET := hpfs.o
+
+obj-y := alloc.o anode.o buffer.o dentry.o dir.o dnode.o ea.o file.o inode.o map.o name.o namei.o super.o
+obj-m := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/hpfs/alloc.c b/fs/hpfs/alloc.c
new file mode 100644
index 00000000000000..5b809941e66d6e
--- /dev/null
+++ b/fs/hpfs/alloc.c
@@ -0,0 +1,452 @@
+/*
+ *  linux/fs/hpfs/alloc.c
+ *
+ *  Mikulas Patocka (mikulas@artax.karlin.mff.cuni.cz), 1998-1999
+ *
+ *  HPFS bitmap operations
+ */
+
+#include "hpfs_fn.h"
+
+/*
+ * Check if a sector is allocated in bitmap
+ * This is really slow. Turned on only if chk==2
+ */
+
+static int chk_if_allocated(struct super_block *s, secno sec, char *msg)
+{
+	struct quad_buffer_head qbh;
+	unsigned *bmp;
+	if (!(bmp = hpfs_map_bitmap(s, sec >> 14, &qbh, "chk"))) goto fail;
+	if ((bmp[(sec & 0x3fff) >> 5] >> (sec & 0x1f)) & 1) {
+		hpfs_error(s, "sector '%s' - %08x not allocated in bitmap", msg, sec);
+		goto fail1;
+	}
+	hpfs_brelse4(&qbh);
+	if (sec >= s->s_hpfs_dirband_start && sec < s->s_hpfs_dirband_start + s->s_hpfs_dirband_size) {
+		unsigned ssec = (sec - s->s_hpfs_dirband_start) / 4;
+		if (!(bmp = hpfs_map_dnode_bitmap(s, &qbh))) goto fail;
+		if ((bmp[ssec >> 5] >> (ssec & 0x1f)) & 1) {
+			hpfs_error(s, "sector '%s' - %08x not allocated in directory bitmap", msg, sec);
+			goto fail1;
+		}
+		hpfs_brelse4(&qbh);
+	}
+	return 0;
+	fail1:
+	hpfs_brelse4(&qbh);
+	fail:
+	return 1;
+}
+
+/*
+ * Check if sector(s) have proper number and additionally check if they're
+ * allocated in bitmap.
+ */
+	
+int hpfs_chk_sectors(struct super_block *s, secno start, int len, char *msg)
+{
+	if (start + len < start || start < 0x12 ||
+	    start + len > s->s_hpfs_fs_size) {
+	    	hpfs_error(s, "sector(s) '%s' badly placed at %08x", msg, start);
+		return 1;
+	}
+	if (s->s_hpfs_chk>=2) {
+		int i;
+		for (i = 0; i < len; i++)
+			if (chk_if_allocated(s, start + i, msg)) return 1;
+	}
+	return 0;
+}
+
+static secno alloc_in_bmp(struct super_block *s, secno near, unsigned n, unsigned forward)
+{
+	struct quad_buffer_head qbh;
+	unsigned *bmp;
+	unsigned bs = near & ~0x3fff;
+	unsigned nr = (near & 0x3fff) & ~(n - 1);
+	/*unsigned mnr;*/
+	unsigned i, q;
+	int a, b;
+	secno ret = 0;
+	if (n != 1 && n != 4) {
+		hpfs_error(s, "Bad allocation size: %d", n);
+		return 0;
+	}
+	lock_super(s);
+	if (bs != ~0x3fff) {
+		if (!(bmp = hpfs_map_bitmap(s, near >> 14, &qbh, "aib"))) goto uls;
+	} else {
+		if (!(bmp = hpfs_map_dnode_bitmap(s, &qbh))) goto uls;
+	}
+	if (!tstbits(bmp, nr, n + forward)) {
+		ret = bs + nr;
+		goto rt;
+	}
+	/*if (!tstbits(bmp, nr + n, n + forward)) {
+		ret = bs + nr + n;
+		goto rt;
+	}*/
+	q = nr + n; b = 0;
+	while ((a = tstbits(bmp, q, n + forward))) {
+		q += a;
+		if (n != 1) q = ((q-1)&~(n-1))+n;
+		if (!b) {
+			if (q>>5 != nr>>5) {
+				b = 1;
+				q = nr & 0x1f;
+			}
+		} else if (q > nr) break;
+	}
+	if (!a) {
+		ret = bs + q;
+		goto rt;
+	}
+	nr >>= 5;
+	/*for (i = nr + 1; i != nr; i++, i &= 0x1ff) {*/
+	i = nr;
+	do {
+		if (!bmp[i]) goto cont;
+		if (n + forward >= 0x3f && bmp[i] != -1) goto cont;
+		q = i<<5;
+		if (i > 0) {
+			unsigned k = bmp[i-1];
+			while (k & 0x80000000) {
+				q--; k <<= 1;
+			}
+		}
+		if (n != 1) q = ((q-1)&~(n-1))+n;
+		while ((a = tstbits(bmp, q, n + forward))) {
+			q += a;
+			if (n != 1) q = ((q-1)&~(n-1))+n;
+			if (q>>5 > i) break;
+		}
+		if (!a) {
+			ret = bs + q;
+			goto rt;
+		}
+		cont:
+		i++, i &= 0x1ff;
+	} while (i != nr);
+	rt:
+	if (ret) {
+		if (s->s_hpfs_chk && ((ret >> 14) != (bs >> 14) || (bmp[(ret & 0x3fff) >> 5] | ~(((1 << n) - 1) << (ret & 0x1f))) != 0xffffffff)) {
+			hpfs_error(s, "Allocation doesn't work! Wanted %d, allocated at %08x", n, ret);
+			ret = 0;
+			goto b;
+		}
+		bmp[(ret & 0x3fff) >> 5] &= ~(((1 << n) - 1) << (ret & 0x1f));
+		hpfs_mark_4buffers_dirty(&qbh);
+	}
+	b:
+	hpfs_brelse4(&qbh);
+	uls:
+	unlock_super(s);
+	return ret;
+}
+
+/*
+ * Allocation strategy:	1) search place near the sector specified
+ *			2) search bitmap where free sectors last found
+ *			3) search all bitmaps
+ *			4) search all bitmaps ignoring number of pre-allocated
+ *				sectors
+ */
+
+secno hpfs_alloc_sector(struct super_block *s, secno near, unsigned n, int forward, int lock)
+{
+	secno sec;
+	int i;
+	unsigned n_bmps;
+	int f_p = 0;
+	int near_bmp;
+	if (forward < 0) {
+		forward = -forward;
+		f_p = 1;
+	}
+	if (lock) hpfs_lock_creation(s);
+	n_bmps = (s->s_hpfs_fs_size + 0x4000 - 1) >> 14;
+	if (near && near < s->s_hpfs_fs_size) {
+		if ((sec = alloc_in_bmp(s, near, n, f_p ? forward : forward/4))) goto ret;
+		near_bmp = near >> 14;
+	} else near_bmp = n_bmps / 2;
+	/*
+	if (b != -1) {
+		if ((sec = alloc_in_bmp(s, b<<14, n, f_p ? forward : forward/2))) {
+			b &= 0x0fffffff;
+			goto ret;
+		}
+		if (b > 0x10000000) if ((sec = alloc_in_bmp(s, (b&0xfffffff)<<14, n, f_p ? forward : 0))) goto ret;
+	}
+	*/
+	if (!f_p) if (forward > s->s_hpfs_max_fwd_alloc) forward = s->s_hpfs_max_fwd_alloc;
+	less_fwd:
+	for (i = 0; i < n_bmps; i++) {
+		if (near_bmp+i < n_bmps && ((sec = alloc_in_bmp(s, (near_bmp+i) << 14, n, forward)))) {
+			s->s_hpfs_c_bitmap = near_bmp+i;
+			goto ret;
+		}	
+		if (!forward) {
+			if (near_bmp-i-1 >= 0 && ((sec = alloc_in_bmp(s, (near_bmp-i-1) << 14, n, forward)))) {
+				s->s_hpfs_c_bitmap = near_bmp-i-1;
+				goto ret;
+			}
+		} else {
+			if (near_bmp+i >= n_bmps && ((sec = alloc_in_bmp(s, (near_bmp+i-n_bmps) << 14, n, forward)))) {
+				s->s_hpfs_c_bitmap = near_bmp+i-n_bmps;
+				goto ret;
+			}
+		}
+		if (i == 1 && s->s_hpfs_c_bitmap != -1 && ((sec = alloc_in_bmp(s, (s->s_hpfs_c_bitmap) << 14, n, forward)))) {
+			goto ret;
+		}
+	}
+	if (!f_p) {
+		if (forward) {
+			s->s_hpfs_max_fwd_alloc = forward * 3 / 4;
+			forward /= 2;
+			goto less_fwd;
+		}
+	}
+	sec = 0;
+	ret:
+	if (sec && f_p) {
+		for (i = 0; i < forward; i++) {
+			if (!hpfs_alloc_if_possible_nolock(s, sec + i + 1)) {
+				hpfs_error(s, "Prealloc doesn't work! Wanted %d, allocated at %08x, can't allocate %d", forward, sec, i);
+				sec = 0;
+				break;
+			}
+		}
+	}
+	if (lock) hpfs_unlock_creation(s);
+	return sec;
+}
+
+static secno alloc_in_dirband(struct super_block *s, secno near, int lock)
+{
+	unsigned nr = near;
+	secno sec;
+	if (nr < s->s_hpfs_dirband_start)
+		nr = s->s_hpfs_dirband_start;
+	if (nr >= s->s_hpfs_dirband_start + s->s_hpfs_dirband_size)
+		nr = s->s_hpfs_dirband_start + s->s_hpfs_dirband_size - 4;
+	nr -= s->s_hpfs_dirband_start;
+	nr >>= 2;
+	if (lock) hpfs_lock_creation(s);
+	sec = alloc_in_bmp(s, (~0x3fff) | nr, 1, 0);
+	if (lock) hpfs_unlock_creation(s);
+	if (!sec) return 0;
+	return ((sec & 0x3fff) << 2) + s->s_hpfs_dirband_start;
+}
+
+/* Alloc sector if it's free */
+
+int hpfs_alloc_if_possible_nolock(struct super_block *s, secno sec)
+{
+	struct quad_buffer_head qbh;
+	unsigned *bmp;
+	lock_super(s);
+	if (!(bmp = hpfs_map_bitmap(s, sec >> 14, &qbh, "aip"))) goto end;
+	if (bmp[(sec & 0x3fff) >> 5] & (1 << (sec & 0x1f))) {
+		bmp[(sec & 0x3fff) >> 5] &= ~(1 << (sec & 0x1f));
+		hpfs_mark_4buffers_dirty(&qbh);
+		hpfs_brelse4(&qbh);
+		unlock_super(s);
+		return 1;
+	}
+	hpfs_brelse4(&qbh);
+	end:
+	unlock_super(s);
+	return 0;
+}
+
+int hpfs_alloc_if_possible(struct super_block *s, secno sec)
+{
+	int r;
+	hpfs_lock_creation(s);
+	r = hpfs_alloc_if_possible_nolock(s, sec);
+	hpfs_unlock_creation(s);
+	return r;
+}
+
+/* Free sectors in bitmaps */
+
+void hpfs_free_sectors(struct super_block *s, secno sec, unsigned n)
+{
+	struct quad_buffer_head qbh;
+	unsigned *bmp;
+	/*printk("2 - ");*/
+	if (!n) return;
+	if (sec < 0x12) {
+		hpfs_error(s, "Trying to free reserved sector %08x", sec);
+		return;
+	}
+	lock_super(s);
+	s->s_hpfs_max_fwd_alloc += n > 0xffff ? 0xffff : n;
+	if (s->s_hpfs_max_fwd_alloc > 0xffffff) s->s_hpfs_max_fwd_alloc = 0xffffff;
+	new_map:
+	if (!(bmp = hpfs_map_bitmap(s, sec >> 14, &qbh, "free"))) {
+		unlock_super(s);
+		return;
+	}	
+	new_tst:
+	if ((bmp[(sec & 0x3fff) >> 5] >> (sec & 0x1f) & 1)) {
+		hpfs_error(s, "sector %08x not allocated", sec);
+		hpfs_brelse4(&qbh);
+		unlock_super(s);
+		return;
+	}
+	bmp[(sec & 0x3fff) >> 5] |= 1 << (sec & 0x1f);
+	if (!--n) {
+		hpfs_mark_4buffers_dirty(&qbh);
+		hpfs_brelse4(&qbh);
+		unlock_super(s);
+		return;
+	}	
+	if (!(++sec & 0x3fff)) {
+		hpfs_mark_4buffers_dirty(&qbh);
+		hpfs_brelse4(&qbh);
+		goto new_map;
+	}
+	goto new_tst;
+}
+
+/*
+ * Check if there are at least n free dnodes on the filesystem.
+ * Called before adding to dnode. If we run out of space while
+ * splitting dnodes, it would corrupt dnode tree.
+ */
+
+int hpfs_check_free_dnodes(struct super_block *s, int n)
+{
+	int n_bmps = (s->s_hpfs_fs_size + 0x4000 - 1) >> 14;
+	int b = s->s_hpfs_c_bitmap & 0x0fffffff;
+	int i, j;
+	unsigned *bmp;
+	struct quad_buffer_head qbh;
+	if ((bmp = hpfs_map_dnode_bitmap(s, &qbh))) {
+		for (j = 0; j < 512; j++) {
+			unsigned k;
+			if (!bmp[j]) continue;
+			for (k = bmp[j]; k; k >>= 1) if (k & 1) if (!--n) {
+				hpfs_brelse4(&qbh);
+				return 0;
+			}
+		}
+	}
+	hpfs_brelse4(&qbh);
+	i = 0;
+	if (s->s_hpfs_c_bitmap != -1) {
+		bmp = hpfs_map_bitmap(s, b, &qbh, "chkdn1");
+		goto chk_bmp;
+	}
+	chk_next:
+	if (i == b) i++;
+	if (i >= n_bmps) return 1;
+	bmp = hpfs_map_bitmap(s, i, &qbh, "chkdn2");
+	chk_bmp:
+	if (bmp) {
+		for (j = 0; j < 512; j++) {
+			unsigned k;
+			if (!bmp[j]) continue;
+			for (k = 0xf; k; k <<= 4)
+				if ((bmp[j] & k) == k) {
+					if (!--n) {
+						hpfs_brelse4(&qbh);
+						return 0;
+					}
+				}
+		}
+		hpfs_brelse4(&qbh);
+	}
+	i++;
+	goto chk_next;
+}
+
+void hpfs_free_dnode(struct super_block *s, dnode_secno dno)
+{
+	if (s->s_hpfs_chk) if (dno & 3) {
+		hpfs_error(s, "hpfs_free_dnode: dnode %08x not aligned", dno);
+		return;
+	}
+	if (dno < s->s_hpfs_dirband_start ||
+	    dno >= s->s_hpfs_dirband_start + s->s_hpfs_dirband_size) {
+		hpfs_free_sectors(s, dno, 4);
+	} else {
+		struct quad_buffer_head qbh;
+		unsigned *bmp;
+		unsigned ssec = (dno - s->s_hpfs_dirband_start) / 4;
+		lock_super(s);
+		if (!(bmp = hpfs_map_dnode_bitmap(s, &qbh))) {
+			unlock_super(s);
+			return;
+		}
+		bmp[ssec >> 5] |= 1 << (ssec & 0x1f);
+		hpfs_mark_4buffers_dirty(&qbh);
+		hpfs_brelse4(&qbh);
+		unlock_super(s);
+	}
+}
+
+struct dnode *hpfs_alloc_dnode(struct super_block *s, secno near,
+			 dnode_secno *dno, struct quad_buffer_head *qbh,
+			 int lock)
+{
+	struct dnode *d;
+	if (hpfs_count_one_bitmap(s, s->s_hpfs_dmap) > FREE_DNODES_ADD) {
+		if (!(*dno = alloc_in_dirband(s, near, lock)))
+			if (!(*dno = hpfs_alloc_sector(s, near, 4, 0, lock))) return NULL;
+	} else {
+		if (!(*dno = hpfs_alloc_sector(s, near, 4, 0, lock)))
+			if (!(*dno = alloc_in_dirband(s, near, lock))) return NULL;
+	}
+	if (!(d = hpfs_get_4sectors(s, *dno, qbh))) {
+		hpfs_free_dnode(s, *dno);
+		return NULL;
+	}
+	memset(d, 0, 2048);
+	d->magic = DNODE_MAGIC;
+	d->first_free = 52;
+	d->dirent[0] = 32;
+	d->dirent[2] = 8;
+	d->dirent[30] = 1;
+	d->dirent[31] = 255;
+	d->self = *dno;
+	return d;
+}
+
+struct fnode *hpfs_alloc_fnode(struct super_block *s, secno near, fnode_secno *fno,
+			  struct buffer_head **bh)
+{
+	struct fnode *f;
+	if (!(*fno = hpfs_alloc_sector(s, near, 1, FNODE_ALLOC_FWD, 1))) return NULL;
+	if (!(f = hpfs_get_sector(s, *fno, bh))) {
+		hpfs_free_sectors(s, *fno, 1);
+		return NULL;
+	}	
+	memset(f, 0, 512);
+	f->magic = FNODE_MAGIC;
+	f->ea_offs = 0xc4;
+	f->btree.n_free_nodes = 8;
+	f->btree.first_free = 8;
+	return f;
+}
+
+struct anode *hpfs_alloc_anode(struct super_block *s, secno near, anode_secno *ano,
+			  struct buffer_head **bh)
+{
+	struct anode *a;
+	if (!(*ano = hpfs_alloc_sector(s, near, 1, ANODE_ALLOC_FWD, 1))) return NULL;
+	if (!(a = hpfs_get_sector(s, *ano, bh))) {
+		hpfs_free_sectors(s, *ano, 1);
+		return NULL;
+	}
+	memset(a, 0, 512);
+	a->magic = ANODE_MAGIC;
+	a->self = *ano;
+	a->btree.n_free_nodes = 40;
+	a->btree.n_used_nodes = 0;
+	a->btree.first_free = 8;
+	return a;
+}
diff --git a/fs/hpfs/anode.c b/fs/hpfs/anode.c
new file mode 100644
index 00000000000000..8077cfc2c29d49
--- /dev/null
+++ b/fs/hpfs/anode.c
@@ -0,0 +1,490 @@
+/*
+ *  linux/fs/hpfs/anode.c
+ *
+ *  Mikulas Patocka (mikulas@artax.karlin.mff.cuni.cz), 1998-1999
+ *
+ *  handling HPFS anode tree that contains file allocation info
+ */
+
+#include "hpfs_fn.h"
+
+/* Find a sector in allocation tree */
+
+secno hpfs_bplus_lookup(struct super_block *s, struct inode *inode,
+		   struct bplus_header *btree, unsigned sec,
+		   struct buffer_head *bh)
+{
+	anode_secno a = -1;
+	struct anode *anode;
+	int i;
+	int c1, c2 = 0;
+	go_down:
+	if (s->s_hpfs_chk) if (hpfs_stop_cycles(s, a, &c1, &c2, "hpfs_bplus_lookup")) return -1;
+	if (btree->internal) {
+		for (i = 0; i < btree->n_used_nodes; i++)
+			if (btree->u.internal[i].file_secno > sec) {
+				a = btree->u.internal[i].down;
+				brelse(bh);
+				if (!(anode = hpfs_map_anode(s, a, &bh))) return -1;
+				btree = &anode->btree;
+				goto go_down;
+			}
+		hpfs_error(s, "sector %08x not found in internal anode %08x", sec, a);
+		brelse(bh);
+		return -1;
+	}
+	for (i = 0; i < btree->n_used_nodes; i++)
+		if (btree->u.external[i].file_secno <= sec &&
+		    btree->u.external[i].file_secno + btree->u.external[i].length > sec) {
+			a = btree->u.external[i].disk_secno + sec - btree->u.external[i].file_secno;
+			if (s->s_hpfs_chk) if (hpfs_chk_sectors(s, a, 1, "data")) {
+				brelse(bh);
+				return -1;
+			}
+			if (inode) {
+				inode->i_hpfs_file_sec = btree->u.external[i].file_secno;
+				inode->i_hpfs_disk_sec = btree->u.external[i].disk_secno;
+				inode->i_hpfs_n_secs = btree->u.external[i].length;
+			}
+			brelse(bh);
+			return a;
+		}
+	hpfs_error(s, "sector %08x not found in external anode %08x", sec, a);
+	brelse(bh);
+	return -1;
+}
+
+/* Add a sector to tree */
+
+secno hpfs_add_sector_to_btree(struct super_block *s, secno node, int fnod, unsigned fsecno)
+{
+	struct bplus_header *btree;
+	struct anode *anode = NULL, *ranode = NULL;
+	struct fnode *fnode;
+	anode_secno a, na = -1, ra, up = -1;
+	secno se;
+	struct buffer_head *bh, *bh1, *bh2;
+	int n;
+	unsigned fs;
+	int c1, c2 = 0;
+	if (fnod) {
+		if (!(fnode = hpfs_map_fnode(s, node, &bh))) return -1;
+		btree = &fnode->btree;
+	} else {
+		if (!(anode = hpfs_map_anode(s, node, &bh))) return -1;
+		btree = &anode->btree;
+	}
+	a = node;
+	go_down:
+	if ((n = btree->n_used_nodes - 1) < -!!fnod) {
+		hpfs_error(s, "anode %08x has no entries", a);
+		brelse(bh);
+		return -1;
+	}
+	if (btree->internal) {
+		a = btree->u.internal[n].down;
+		btree->u.internal[n].file_secno = -1;
+		mark_buffer_dirty(bh);
+		brelse(bh);
+		if (s->s_hpfs_chk)
+			if (hpfs_stop_cycles(s, a, &c1, &c2, "hpfs_add_sector_to_btree #1")) return -1;
+		if (!(anode = hpfs_map_anode(s, a, &bh))) return -1;
+		btree = &anode->btree;
+		goto go_down;
+	}
+	if (n >= 0) {
+		if (btree->u.external[n].file_secno + btree->u.external[n].length != fsecno) {
+			hpfs_error(s, "allocated size %08x, trying to add sector %08x, %cnode %08x",
+				btree->u.external[n].file_secno + btree->u.external[n].length, fsecno,
+				fnod?'f':'a', node);
+			brelse(bh);
+			return -1;
+		}
+		if (hpfs_alloc_if_possible(s, se = btree->u.external[n].disk_secno + btree->u.external[n].length)) {
+			btree->u.external[n].length++;
+			mark_buffer_dirty(bh);
+			brelse(bh);
+			return se;
+		}
+	} else {
+		if (fsecno) {
+			hpfs_error(s, "empty file %08x, trying to add sector %08x", node, fsecno);
+			brelse(bh);
+			return -1;
+		}
+		se = !fnod ? node : (node + 16384) & ~16383;
+	}	
+	if (!(se = hpfs_alloc_sector(s, se, 1, fsecno*ALLOC_M>ALLOC_FWD_MAX ? ALLOC_FWD_MAX : fsecno*ALLOC_M<ALLOC_FWD_MIN ? ALLOC_FWD_MIN : fsecno*ALLOC_M, 1))) {
+		brelse(bh);
+		return -1;
+	}
+	fs = n < 0 ? 0 : btree->u.external[n].file_secno + btree->u.external[n].length;
+	if (!btree->n_free_nodes) {
+		up = a != node ? anode->up : -1;
+		if (!(anode = hpfs_alloc_anode(s, a, &na, &bh1))) {
+			brelse(bh);
+			hpfs_free_sectors(s, se, 1);
+			return -1;
+		}
+		if (a == node && fnod) {
+			anode->up = node;
+			anode->btree.fnode_parent = 1;
+			anode->btree.n_used_nodes = btree->n_used_nodes;
+			anode->btree.first_free = btree->first_free;
+			anode->btree.n_free_nodes = 40 - anode->btree.n_used_nodes;
+			memcpy(&anode->u, &btree->u, btree->n_used_nodes * 12);
+			btree->internal = 1;
+			btree->n_free_nodes = 11;
+			btree->n_used_nodes = 1;
+			btree->first_free = (char *)&(btree->u.internal[1]) - (char *)btree;
+			btree->u.internal[0].file_secno = -1;
+			btree->u.internal[0].down = na;
+			mark_buffer_dirty(bh);
+		} else if (!(ranode = hpfs_alloc_anode(s, /*a*/0, &ra, &bh2))) {
+			brelse(bh);
+			brelse(bh1);
+			hpfs_free_sectors(s, se, 1);
+			hpfs_free_sectors(s, na, 1);
+			return -1;
+		}
+		brelse(bh);
+		bh = bh1;
+		btree = &anode->btree;
+	}
+	btree->n_free_nodes--; n = btree->n_used_nodes++;
+	btree->first_free += 12;
+	btree->u.external[n].disk_secno = se;
+	btree->u.external[n].file_secno = fs;
+	btree->u.external[n].length = 1;
+	mark_buffer_dirty(bh);
+	brelse(bh);
+	if ((a == node && fnod) || na == -1) return se;
+	c2 = 0;
+	while (up != -1) {
+		struct anode *new_anode;
+		if (s->s_hpfs_chk)
+			if (hpfs_stop_cycles(s, up, &c1, &c2, "hpfs_add_sector_to_btree #2")) return -1;
+		if (up != node || !fnod) {
+			if (!(anode = hpfs_map_anode(s, up, &bh))) return -1;
+			btree = &anode->btree;
+		} else {
+			if (!(fnode = hpfs_map_fnode(s, up, &bh))) return -1;
+			btree = &fnode->btree;
+		}
+		if (btree->n_free_nodes) {
+			btree->n_free_nodes--; n = btree->n_used_nodes++;
+			btree->first_free += 8;
+			btree->u.internal[n].file_secno = -1;
+			btree->u.internal[n].down = na;
+			btree->u.internal[n-1].file_secno = fs;
+			mark_buffer_dirty(bh);
+			brelse(bh);
+			brelse(bh2);
+			hpfs_free_sectors(s, ra, 1);
+			if ((anode = hpfs_map_anode(s, na, &bh))) {
+				anode->up = up;
+				anode->btree.fnode_parent = up == node && fnod;
+				mark_buffer_dirty(bh);
+				brelse(bh);
+			}
+			return se;
+		}
+		up = up != node ? anode->up : -1;
+		btree->u.internal[btree->n_used_nodes - 1].file_secno = /*fs*/-1;
+		mark_buffer_dirty(bh);
+		brelse(bh);
+		a = na;
+		if ((new_anode = hpfs_alloc_anode(s, a, &na, &bh))) {
+			anode = new_anode;
+			/*anode->up = up != -1 ? up : ra;*/
+			anode->btree.internal = 1;
+			anode->btree.n_used_nodes = 1;
+			anode->btree.n_free_nodes = 59;
+			anode->btree.first_free = 16;
+			anode->btree.u.internal[0].down = a;
+			anode->btree.u.internal[0].file_secno = -1;
+			mark_buffer_dirty(bh);
+			brelse(bh);
+			if ((anode = hpfs_map_anode(s, a, &bh))) {
+				anode->up = na;
+				mark_buffer_dirty(bh);
+				brelse(bh);
+			}
+		} else na = a;
+	}
+	if ((anode = hpfs_map_anode(s, na, &bh))) {
+		anode->up = node;
+		if (fnod) anode->btree.fnode_parent = 1;
+		mark_buffer_dirty(bh);
+		brelse(bh);
+	}
+	if (!fnod) {
+		if (!(anode = hpfs_map_anode(s, node, &bh))) {
+			brelse(bh2);
+			return -1;
+		}
+		btree = &anode->btree;
+	} else {
+		if (!(fnode = hpfs_map_fnode(s, node, &bh))) {
+			brelse(bh2);
+			return -1;
+		}
+		btree = &fnode->btree;
+	}
+	ranode->up = node;
+	memcpy(&ranode->btree, btree, btree->first_free);
+	if (fnod) ranode->btree.fnode_parent = 1;
+	ranode->btree.n_free_nodes = (ranode->btree.internal ? 60 : 40) - ranode->btree.n_used_nodes;
+	if (ranode->btree.internal) for (n = 0; n < ranode->btree.n_used_nodes; n++) {
+		struct anode *unode;
+		if ((unode = hpfs_map_anode(s, ranode->u.internal[n].down, &bh1))) {
+			unode->up = ra;
+			unode->btree.fnode_parent = 0;
+			mark_buffer_dirty(bh1);
+			brelse(bh1);
+		}
+	}
+	btree->internal = 1;
+	btree->n_free_nodes = fnod ? 10 : 58;
+	btree->n_used_nodes = 2;
+	btree->first_free = (char *)&btree->u.internal[2] - (char *)btree;
+	btree->u.internal[0].file_secno = fs;
+	btree->u.internal[0].down = ra;
+	btree->u.internal[1].file_secno = -1;
+	btree->u.internal[1].down = na;
+	mark_buffer_dirty(bh);
+	brelse(bh);
+	mark_buffer_dirty(bh2);
+	brelse(bh2);
+	return se;
+}
+
+/*
+ * Remove allocation tree. Recursion would look much nicer but
+ * I want to avoid it because it can cause stack overflow.
+ */
+
+void hpfs_remove_btree(struct super_block *s, struct bplus_header *btree)
+{
+	struct bplus_header *btree1 = btree;
+	struct anode *anode = NULL;
+	anode_secno ano = 0, oano;
+	struct buffer_head *bh;
+	int level = 0;
+	int pos = 0;
+	int i;
+	int c1, c2 = 0;
+	int d1, d2;
+	go_down:
+	d2 = 0;
+	while (btree1->internal) {
+		ano = btree1->u.internal[pos].down;
+		if (level) brelse(bh);
+		if (s->s_hpfs_chk)
+			if (hpfs_stop_cycles(s, ano, &d1, &d2, "hpfs_remove_btree #1"))
+				return;
+		if (!(anode = hpfs_map_anode(s, ano, &bh))) return;
+		btree1 = &anode->btree;
+		level++;
+		pos = 0;
+	}
+	for (i = 0; i < btree1->n_used_nodes; i++)
+		hpfs_free_sectors(s, btree1->u.external[i].disk_secno, btree1->u.external[i].length);
+	go_up:
+	if (!level) return;
+	brelse(bh);
+	if (s->s_hpfs_chk)
+		if (hpfs_stop_cycles(s, ano, &c1, &c2, "hpfs_remove_btree #2")) return;
+	hpfs_free_sectors(s, ano, 1);
+	oano = ano;
+	ano = anode->up;
+	if (--level) {
+		if (!(anode = hpfs_map_anode(s, ano, &bh))) return;
+		btree1 = &anode->btree;
+	} else btree1 = btree;
+	for (i = 0; i < btree1->n_used_nodes; i++) {
+		if (btree1->u.internal[i].down == oano) {
+			if ((pos = i + 1) < btree1->n_used_nodes)
+				goto go_down;
+			else
+				goto go_up;
+		}
+	}
+	hpfs_error(s,
+		   "reference to anode %08x not found in anode %08x "
+		   "(probably bad up pointer)",
+		   oano, level ? ano : -1);
+	if (level)
+		brelse(bh);
+}
+
+/* Just a wrapper around hpfs_bplus_lookup .. used for reading eas */
+
+static secno anode_lookup(struct super_block *s, anode_secno a, unsigned sec)
+{
+	struct anode *anode;
+	struct buffer_head *bh;
+	if (!(anode = hpfs_map_anode(s, a, &bh))) return -1;
+	return hpfs_bplus_lookup(s, NULL, &anode->btree, sec, bh);
+}
+
+int hpfs_ea_read(struct super_block *s, secno a, int ano, unsigned pos,
+	    unsigned len, char *buf)
+{
+	struct buffer_head *bh;
+	char *data;
+	secno sec;
+	unsigned l;
+	while (len) {
+		if (ano) {
+			if ((sec = anode_lookup(s, a, pos >> 9)) == -1)
+				return -1;
+		} else sec = a + (pos >> 9);
+		if (s->s_hpfs_chk) if (hpfs_chk_sectors(s, sec, 1, "ea #1")) return -1;
+		if (!(data = hpfs_map_sector(s, sec, &bh, (len - 1) >> 9)))
+			return -1;
+		l = 0x200 - (pos & 0x1ff); if (l > len) l = len;
+		memcpy(buf, data + (pos & 0x1ff), l);
+		brelse(bh);
+		buf += l; pos += l; len -= l;
+	}
+	return 0;
+}
+
+int hpfs_ea_write(struct super_block *s, secno a, int ano, unsigned pos,
+	     unsigned len, char *buf)
+{
+	struct buffer_head *bh;
+	char *data;
+	secno sec;
+	unsigned l;
+	while (len) {
+		if (ano) {
+			if ((sec = anode_lookup(s, a, pos >> 9)) == -1)
+				return -1;
+		} else sec = a + (pos >> 9);
+		if (s->s_hpfs_chk) if (hpfs_chk_sectors(s, sec, 1, "ea #2")) return -1;
+		if (!(data = hpfs_map_sector(s, sec, &bh, (len - 1) >> 9)))
+			return -1;
+		l = 0x200 - (pos & 0x1ff); if (l > len) l = len;
+		memcpy(data + (pos & 0x1ff), buf, l);
+		mark_buffer_dirty(bh);
+		brelse(bh);
+		buf += l; pos += l; len -= l;
+	}
+	return 0;
+}
+
+void hpfs_ea_remove(struct super_block *s, secno a, int ano, unsigned len)
+{
+	struct anode *anode;
+	struct buffer_head *bh;
+	if (ano) {
+		if (!(anode = hpfs_map_anode(s, a, &bh))) return;
+		hpfs_remove_btree(s, &anode->btree);
+		brelse(bh);
+		hpfs_free_sectors(s, a, 1);
+	} else hpfs_free_sectors(s, a, (len + 511) >> 9);
+}
+
+/* Truncate allocation tree. Doesn't join anodes - I hope it doesn't matter */
+
+void hpfs_truncate_btree(struct super_block *s, secno f, int fno, unsigned secs)
+{
+	struct fnode *fnode;
+	struct anode *anode;
+	struct buffer_head *bh;
+	struct bplus_header *btree;
+	anode_secno node = f;
+	int i, j, nodes;
+	int c1, c2 = 0;
+	if (fno) {
+		if (!(fnode = hpfs_map_fnode(s, f, &bh))) return;
+		btree = &fnode->btree;
+	} else {
+		if (!(anode = hpfs_map_anode(s, f, &bh))) return;
+		btree = &anode->btree;
+	}
+	if (!secs) {
+		hpfs_remove_btree(s, btree);
+		if (fno) {
+			btree->n_free_nodes = 8;
+			btree->n_used_nodes = 0;
+			btree->first_free = 8;
+			btree->internal = 0;
+			mark_buffer_dirty(bh);
+		} else hpfs_free_sectors(s, f, 1);
+		brelse(bh);
+		return;
+	}
+	while (btree->internal) {
+		nodes = btree->n_used_nodes + btree->n_free_nodes;
+		for (i = 0; i < btree->n_used_nodes; i++)
+			if (btree->u.internal[i].file_secno >= secs) goto f;
+		brelse(bh);
+		hpfs_error(s, "internal btree %08x doesn't end with -1", node);
+		return;
+		f:
+		for (j = i + 1; j < btree->n_used_nodes; j++)
+			hpfs_ea_remove(s, btree->u.internal[j].down, 1, 0);
+		btree->n_used_nodes = i + 1;
+		btree->n_free_nodes = nodes - btree->n_used_nodes;
+		btree->first_free = 8 + 8 * btree->n_used_nodes;
+		mark_buffer_dirty(bh);
+		if (btree->u.internal[i].file_secno == secs) {
+			brelse(bh);
+			return;
+		}
+		node = btree->u.internal[i].down;
+		brelse(bh);
+		if (s->s_hpfs_chk)
+			if (hpfs_stop_cycles(s, node, &c1, &c2, "hpfs_truncate_btree"))
+				return;
+		if (!(anode = hpfs_map_anode(s, node, &bh))) return;
+		btree = &anode->btree;
+	}	
+	nodes = btree->n_used_nodes + btree->n_free_nodes;
+	for (i = 0; i < btree->n_used_nodes; i++)
+		if (btree->u.external[i].file_secno + btree->u.external[i].length >= secs) goto ff;
+	brelse(bh);
+	return;
+	ff:
+	if (secs <= btree->u.external[i].file_secno) {
+		hpfs_error(s, "there is an allocation error in file %08x, sector %08x", f, secs);
+		if (i) i--;
+	}
+	else if (btree->u.external[i].file_secno + btree->u.external[i].length > secs) {
+		hpfs_free_sectors(s, btree->u.external[i].disk_secno + secs -
+			btree->u.external[i].file_secno, btree->u.external[i].length
+			- secs + btree->u.external[i].file_secno); /* I hope gcc optimizes this :-) */
+		btree->u.external[i].length = secs - btree->u.external[i].file_secno;
+	}
+	for (j = i + 1; j < btree->n_used_nodes; j++)
+		hpfs_free_sectors(s, btree->u.external[j].disk_secno, btree->u.external[j].length);
+	btree->n_used_nodes = i + 1;
+	btree->n_free_nodes = nodes - btree->n_used_nodes;
+	btree->first_free = 8 + 12 * btree->n_used_nodes;
+	mark_buffer_dirty(bh);
+	brelse(bh);
+}
+
+/* Remove file or directory and it's eas - note that directory must
+   be empty when this is called. */
+
+void hpfs_remove_fnode(struct super_block *s, fnode_secno fno)
+{
+	struct buffer_head *bh;
+	struct fnode *fnode;
+	struct extended_attribute *ea;
+	struct extended_attribute *ea_end;
+	if (!(fnode = hpfs_map_fnode(s, fno, &bh))) return;
+	if (!fnode->dirflag) hpfs_remove_btree(s, &fnode->btree);
+	else hpfs_remove_dtree(s, fnode->u.external[0].disk_secno);
+	ea_end = fnode_end_ea(fnode);
+	for (ea = fnode_ea(fnode); ea < ea_end; ea = next_ea(ea))
+		if (ea->indirect)
+			hpfs_ea_remove(s, ea_sec(ea), ea->anode, ea_len(ea));
+	hpfs_ea_ext_remove(s, fnode->ea_secno, fnode->ea_anode, fnode->ea_size_l);
+	brelse(bh);
+	hpfs_free_sectors(s, fno, 1);
+}
diff --git a/fs/hpfs/buffer.c b/fs/hpfs/buffer.c
new file mode 100644
index 00000000000000..7be332f697669a
--- /dev/null
+++ b/fs/hpfs/buffer.c
@@ -0,0 +1,268 @@
+/*
+ *  linux/fs/hpfs/buffer.c
+ *
+ *  Mikulas Patocka (mikulas@artax.karlin.mff.cuni.cz), 1998-1999
+ *
+ *  general buffer i/o
+ */
+
+#include <linux/string.h>
+#include "hpfs_fn.h"
+
+void hpfs_lock_creation(struct super_block *s)
+{
+#ifdef DEBUG_LOCKS
+	printk("lock creation\n");
+#endif
+	while (s->s_hpfs_creation_de_lock) sleep_on(&s->s_hpfs_creation_de);
+	s->s_hpfs_creation_de_lock = 1;
+}
+
+void hpfs_unlock_creation(struct super_block *s)
+{
+#ifdef DEBUG_LOCKS
+	printk("unlock creation\n");
+#endif
+	s->s_hpfs_creation_de_lock = 0;
+	wake_up(&s->s_hpfs_creation_de);
+}
+
+void hpfs_lock_iget(struct super_block *s, int mode)
+{
+#ifdef DEBUG_LOCKS
+	printk("lock iget\n");
+#endif
+	while (s->s_hpfs_rd_inode) sleep_on(&s->s_hpfs_iget_q);
+	s->s_hpfs_rd_inode = mode;
+}
+
+void hpfs_unlock_iget(struct super_block *s)
+{
+#ifdef DEBUG_LOCKS
+	printk("unlock iget\n");
+#endif
+	s->s_hpfs_rd_inode = 0;
+	wake_up(&s->s_hpfs_iget_q);
+}
+
+void hpfs_lock_inode(struct inode *i)
+{
+	if (i) down(&i->i_hpfs_sem);
+}
+
+void hpfs_unlock_inode(struct inode *i)
+{
+	if (i) up(&i->i_hpfs_sem);
+}
+
+void hpfs_lock_2inodes(struct inode *i1, struct inode *i2)
+{
+	if (!i1) { if (i2) down(&i2->i_hpfs_sem); return; }
+	if (!i2) { if (i1) down(&i1->i_hpfs_sem); return; }
+	if (i1->i_ino < i2->i_ino) {
+		down(&i1->i_hpfs_sem);
+		down(&i2->i_hpfs_sem);
+	} else if (i1->i_ino > i2->i_ino) {
+		down(&i2->i_hpfs_sem);
+		down(&i1->i_hpfs_sem);
+	} else down(&i1->i_hpfs_sem);
+}
+
+void hpfs_unlock_2inodes(struct inode *i1, struct inode *i2)
+{
+	if (!i1) { if (i2) up(&i2->i_hpfs_sem); return; }
+	if (!i2) { if (i1) up(&i1->i_hpfs_sem); return; }
+	if (i1->i_ino < i2->i_ino) {
+		up(&i2->i_hpfs_sem);
+		up(&i1->i_hpfs_sem);
+	} else if (i1->i_ino > i2->i_ino) {
+		up(&i1->i_hpfs_sem);
+		up(&i2->i_hpfs_sem);
+	} else up(&i1->i_hpfs_sem);
+}
+
+void hpfs_lock_3inodes(struct inode *i1, struct inode *i2, struct inode *i3)
+{
+	if (!i1) { hpfs_lock_2inodes(i2, i3); return; }
+	if (!i2) { hpfs_lock_2inodes(i1, i3); return; }
+	if (!i3) { hpfs_lock_2inodes(i1, i2); return; }
+	if (i1->i_ino < i2->i_ino && i1->i_ino < i3->i_ino) {
+		down(&i1->i_hpfs_sem);
+		hpfs_lock_2inodes(i2, i3);
+	} else if (i2->i_ino < i1->i_ino && i2->i_ino < i3->i_ino) {
+		down(&i2->i_hpfs_sem);
+		hpfs_lock_2inodes(i1, i3);
+	} else if (i3->i_ino < i1->i_ino && i3->i_ino < i2->i_ino) {
+		down(&i3->i_hpfs_sem);
+		hpfs_lock_2inodes(i1, i2);
+	} else if (i1->i_ino != i2->i_ino) hpfs_lock_2inodes(i1, i2);
+	else hpfs_lock_2inodes(i1, i3);
+}
+		
+void hpfs_unlock_3inodes(struct inode *i1, struct inode *i2, struct inode *i3)
+{
+	if (!i1) { hpfs_unlock_2inodes(i2, i3); return; }
+	if (!i2) { hpfs_unlock_2inodes(i1, i3); return; }
+	if (!i3) { hpfs_unlock_2inodes(i1, i2); return; }
+	if (i1->i_ino < i2->i_ino && i1->i_ino < i3->i_ino) {
+		hpfs_unlock_2inodes(i2, i3);
+		up(&i1->i_hpfs_sem);
+	} else if (i2->i_ino < i1->i_ino && i2->i_ino < i3->i_ino) {
+		hpfs_unlock_2inodes(i1, i3);
+		up(&i2->i_hpfs_sem);
+	} else if (i3->i_ino < i1->i_ino && i3->i_ino < i2->i_ino) {
+		hpfs_unlock_2inodes(i1, i2);
+		up(&i3->i_hpfs_sem);
+	} else if (i1->i_ino != i2->i_ino) hpfs_unlock_2inodes(i1, i2);
+	else hpfs_unlock_2inodes(i1, i3);
+}
+
+/* Map a sector into a buffer and return pointers to it and to the buffer. */
+
+void *hpfs_map_sector(struct super_block *s, unsigned secno, struct buffer_head **bhp,
+		 int ahead)
+{
+	struct buffer_head *bh;
+
+	cond_resched();
+
+	*bhp = bh = sb_bread(s, secno);
+	if (bh != NULL)
+		return bh->b_data;
+	else {
+		printk("HPFS: hpfs_map_sector: read error\n");
+		return NULL;
+	}
+}
+
+/* Like hpfs_map_sector but don't read anything */
+
+void *hpfs_get_sector(struct super_block *s, unsigned secno, struct buffer_head **bhp)
+{
+	struct buffer_head *bh;
+	/*return hpfs_map_sector(s, secno, bhp, 0);*/
+
+	cond_resched();
+
+	if ((*bhp = bh = sb_getblk(s, secno)) != NULL) {
+		if (!buffer_uptodate(bh)) wait_on_buffer(bh);
+		mark_buffer_uptodate(bh, 1);
+		return bh->b_data;
+	} else {
+		printk("HPFS: hpfs_get_sector: getblk failed\n");
+		return NULL;
+	}
+}
+
+/* Map 4 sectors into a 4buffer and return pointers to it and to the buffer. */
+
+void *hpfs_map_4sectors(struct super_block *s, unsigned secno, struct quad_buffer_head *qbh,
+		   int ahead)
+{
+	struct buffer_head *bh;
+	char *data;
+
+	cond_resched();
+
+	if (secno & 3) {
+		printk("HPFS: hpfs_map_4sectors: unaligned read\n");
+		return 0;
+	}
+
+	qbh->data = data = (char *)kmalloc(2048, GFP_KERNEL);
+	if (!data) {
+		printk("HPFS: hpfs_map_4sectors: out of memory\n");
+		goto bail;
+	}
+
+	qbh->bh[0] = bh = sb_bread(s, secno);
+	if (!bh)
+		goto bail0;
+	memcpy(data, bh->b_data, 512);
+
+	qbh->bh[1] = bh = sb_bread(s, secno + 1);
+	if (!bh)
+		goto bail1;
+	memcpy(data + 512, bh->b_data, 512);
+
+	qbh->bh[2] = bh = sb_bread(s, secno + 2);
+	if (!bh)
+		goto bail2;
+	memcpy(data + 2 * 512, bh->b_data, 512);
+
+	qbh->bh[3] = bh = sb_bread(s, secno + 3);
+	if (!bh)
+		goto bail3;
+	memcpy(data + 3 * 512, bh->b_data, 512);
+
+	return data;
+
+ bail3:
+	brelse(qbh->bh[2]);
+ bail2:
+	brelse(qbh->bh[1]);
+ bail1:
+	brelse(qbh->bh[0]);
+ bail0:
+	kfree(data);
+	printk("HPFS: hpfs_map_4sectors: read error\n");
+ bail:
+	return NULL;
+}
+
+/* Don't read sectors */
+
+void *hpfs_get_4sectors(struct super_block *s, unsigned secno,
+                          struct quad_buffer_head *qbh)
+{
+	cond_resched();
+
+	if (secno & 3) {
+		printk("HPFS: hpfs_get_4sectors: unaligned read\n");
+		return 0;
+	}
+
+	/*return hpfs_map_4sectors(s, secno, qbh, 0);*/
+	if (!(qbh->data = kmalloc(2048, GFP_KERNEL))) {
+		printk("HPFS: hpfs_get_4sectors: out of memory\n");
+		return NULL;
+	}
+	if (!(hpfs_get_sector(s, secno, &qbh->bh[0]))) goto bail0;
+	if (!(hpfs_get_sector(s, secno + 1, &qbh->bh[1]))) goto bail1;
+	if (!(hpfs_get_sector(s, secno + 2, &qbh->bh[2]))) goto bail2;
+	if (!(hpfs_get_sector(s, secno + 3, &qbh->bh[3]))) goto bail3;
+	memcpy(qbh->data, qbh->bh[0]->b_data, 512);
+	memcpy(qbh->data + 512, qbh->bh[1]->b_data, 512);
+	memcpy(qbh->data + 2*512, qbh->bh[2]->b_data, 512);
+	memcpy(qbh->data + 3*512, qbh->bh[3]->b_data, 512);
+	return qbh->data;
+
+	bail3:	brelse(qbh->bh[2]);
+	bail2:	brelse(qbh->bh[1]);
+	bail1:	brelse(qbh->bh[0]);
+	bail0:
+	return NULL;
+}
+	
+
+void hpfs_brelse4(struct quad_buffer_head *qbh)
+{
+	brelse(qbh->bh[3]);
+	brelse(qbh->bh[2]);
+	brelse(qbh->bh[1]);
+	brelse(qbh->bh[0]);
+	kfree(qbh->data);
+}	
+
+void hpfs_mark_4buffers_dirty(struct quad_buffer_head *qbh)
+{
+	PRINTK(("hpfs_mark_4buffers_dirty\n"));
+	memcpy(qbh->bh[0]->b_data, qbh->data, 512);
+	memcpy(qbh->bh[1]->b_data, qbh->data + 512, 512);
+	memcpy(qbh->bh[2]->b_data, qbh->data + 2 * 512, 512);
+	memcpy(qbh->bh[3]->b_data, qbh->data + 3 * 512, 512);
+	mark_buffer_dirty(qbh->bh[0]);
+	mark_buffer_dirty(qbh->bh[1]);
+	mark_buffer_dirty(qbh->bh[2]);
+	mark_buffer_dirty(qbh->bh[3]);
+}
diff --git a/fs/hpfs/dentry.c b/fs/hpfs/dentry.c
new file mode 100644
index 00000000000000..3aad4ba50ce253
--- /dev/null
+++ b/fs/hpfs/dentry.c
@@ -0,0 +1,60 @@
+/*
+ *  linux/fs/hpfs/dentry.c
+ *
+ *  Mikulas Patocka (mikulas@artax.karlin.mff.cuni.cz), 1998-1999
+ *
+ *  dcache operations
+ */
+
+#include "hpfs_fn.h"
+
+/*
+ * Note: the dentry argument is the parent dentry.
+ */
+
+int hpfs_hash_dentry(struct dentry *dentry, struct qstr *qstr)
+{
+	unsigned long	 hash;
+	int		 i;
+	unsigned l = qstr->len;
+
+	if (l == 1) if (qstr->name[0]=='.') goto x;
+	if (l == 2) if (qstr->name[0]=='.' || qstr->name[1]=='.') goto x;
+	hpfs_adjust_length((char *)qstr->name, &l);
+	/*if (hpfs_chk_name((char *)qstr->name,&l))*/
+		/*return -ENAMETOOLONG;*/
+		/*return -ENOENT;*/
+	x:
+
+	hash = init_name_hash();
+	for (i = 0; i < l; i++)
+		hash = partial_name_hash(hpfs_upcase(dentry->d_sb->s_hpfs_cp_table,qstr->name[i]), hash);
+	qstr->hash = end_name_hash(hash);
+
+	return 0;
+}
+
+int hpfs_compare_dentry(struct dentry *dentry, struct qstr *a, struct qstr *b)
+{
+	unsigned al=a->len;
+	unsigned bl=b->len;
+	hpfs_adjust_length((char *)a->name, &al);
+	/*hpfs_adjust_length((char *)b->name, &bl);*/
+	/* 'a' is the qstr of an already existing dentry, so the name
+	 * must be valid. 'b' must be validated first.
+	 */
+
+	if (hpfs_chk_name((char *)b->name, &bl)) return 1;
+	if (hpfs_compare_names(dentry->d_sb, (char *)a->name, al, (char *)b->name, bl, 0)) return 1;
+	return 0;
+}
+
+struct dentry_operations hpfs_dentry_operations = {
+	d_hash:		hpfs_hash_dentry,
+	d_compare:	hpfs_compare_dentry,
+};
+
+void hpfs_set_dentry_operations(struct dentry *dentry)
+{
+	dentry->d_op = &hpfs_dentry_operations;
+}
diff --git a/fs/hpfs/dir.c b/fs/hpfs/dir.c
new file mode 100644
index 00000000000000..f2a732869ef9f6
--- /dev/null
+++ b/fs/hpfs/dir.c
@@ -0,0 +1,281 @@
+/*
+ *  linux/fs/hpfs/dir.c
+ *
+ *  Mikulas Patocka (mikulas@artax.karlin.mff.cuni.cz), 1998-1999
+ *
+ *  directory VFS functions
+ */
+
+#include "hpfs_fn.h"
+#include <linux/sched.h>
+#include <linux/smp_lock.h>
+
+int hpfs_dir_release(struct inode *inode, struct file *filp)
+{
+	lock_kernel();
+	hpfs_del_pos(inode, &filp->f_pos);
+	/*hpfs_write_if_changed(inode);*/
+	unlock_kernel();
+	return 0;
+}
+
+/* This is slow, but it's not used often */
+
+loff_t hpfs_dir_lseek(struct file *filp, loff_t off, int whence)
+{
+	loff_t new_off = off + (whence == 1 ? filp->f_pos : 0);
+	loff_t pos;
+	struct quad_buffer_head qbh;
+	struct inode *i = filp->f_dentry->d_inode;
+	struct super_block *s = i->i_sb;
+	/*printk("dir lseek\n");*/
+	if (new_off == 0 || new_off == 1 || new_off == 11 || new_off == 12 || new_off == 13) goto ok;
+	hpfs_lock_inode(i);
+	pos = ((loff_t) hpfs_de_as_down_as_possible(s, i->i_hpfs_dno) << 4) + 1;
+	while (pos != new_off) {
+		if (map_pos_dirent(i, &pos, &qbh)) hpfs_brelse4(&qbh);
+		else goto fail;
+		if (pos == 12) goto fail;
+	}
+	hpfs_unlock_inode(i);
+	ok:
+	return filp->f_pos = new_off;
+	fail:
+	hpfs_unlock_inode(i);
+	/*printk("illegal lseek: %016llx\n", new_off);*/
+	return -ESPIPE;
+}
+
+int hpfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
+{
+	struct inode *inode = filp->f_dentry->d_inode;
+	struct quad_buffer_head qbh;
+	struct hpfs_dirent *de;
+	int lc;
+	long old_pos;
+	char *tempname;
+	int c1, c2 = 0;
+
+	if (inode->i_sb->s_hpfs_chk) {
+		if (hpfs_chk_sectors(inode->i_sb, inode->i_ino, 1, "dir_fnode"))
+			return -EFSERROR;
+		if (hpfs_chk_sectors(inode->i_sb, inode->i_hpfs_dno, 4, "dir_dnode"))
+			return -EFSERROR;
+	}
+	if (inode->i_sb->s_hpfs_chk >= 2) {
+		struct buffer_head *bh;
+		struct fnode *fno;
+		int e = 0;
+		if (!(fno = hpfs_map_fnode(inode->i_sb, inode->i_ino, &bh)))
+			return -EIOERROR;
+		if (!fno->dirflag) {
+			e = 1;
+			hpfs_error(inode->i_sb, "not a directory, fnode %08x",inode->i_ino);
+		}
+		if (inode->i_hpfs_dno != fno->u.external[0].disk_secno) {
+			e = 1;
+			hpfs_error(inode->i_sb, "corrupted inode: i_hpfs_dno == %08x, fnode -> dnode == %08x", inode->i_hpfs_dno, fno->u.external[0].disk_secno);
+		}
+		brelse(bh);
+		if (e) return -EFSERROR;
+	}
+	lc = inode->i_sb->s_hpfs_lowercase;
+	if (filp->f_pos == 12) { /* diff -r requires this (note, that diff -r */
+		filp->f_pos = 13; /* also fails on msdos filesystem in 2.0) */
+		return 0;
+	}
+	if (filp->f_pos == 13) return -ENOENT;
+	
+	hpfs_lock_inode(inode);
+	
+	while (1) {
+		again:
+		/* This won't work when cycle is longer than number of dirents
+		   accepted by filldir, but what can I do?
+		   maybe killall -9 ls helps */
+		if (inode->i_sb->s_hpfs_chk)
+			if (hpfs_stop_cycles(inode->i_sb, filp->f_pos, &c1, &c2, "hpfs_readdir")) {
+				hpfs_unlock_inode(inode);
+				return -EFSERROR;
+			}
+		if (filp->f_pos == 12) {
+			hpfs_unlock_inode(inode);
+			return 0;
+		}
+		if (filp->f_pos == 3 || filp->f_pos == 4 || filp->f_pos == 5) {
+			printk("HPFS: warning: pos==%d\n",(int)filp->f_pos);
+			hpfs_unlock_inode(inode);
+			return 0;
+		}
+		if (filp->f_pos == 0) {
+			if (filldir(dirent, ".", 1, filp->f_pos, inode->i_ino, DT_DIR) < 0) {
+				hpfs_unlock_inode(inode);
+				return 0;
+			}
+			filp->f_pos = 11;
+		}
+		if (filp->f_pos == 11) {
+			if (filldir(dirent, "..", 2, filp->f_pos, inode->i_hpfs_parent_dir, DT_DIR) < 0) {
+				hpfs_unlock_inode(inode);
+				return 0;
+			}
+			filp->f_pos = 1;
+		}
+		if (filp->f_pos == 1) {
+			filp->f_pos = ((loff_t) hpfs_de_as_down_as_possible(inode->i_sb, inode->i_hpfs_dno) << 4) + 1;
+			hpfs_add_pos(inode, &filp->f_pos);
+			filp->f_version = inode->i_version;
+		}
+			/*if (filp->f_version != inode->i_version) {
+				hpfs_unlock_inode(inode);
+				return -ENOENT;
+			}*/	
+			old_pos = filp->f_pos;
+			if (!(de = map_pos_dirent(inode, &filp->f_pos, &qbh))) {
+				hpfs_unlock_inode(inode);
+				return -EIOERROR;
+			}
+			if (de->first || de->last) {
+				if (inode->i_sb->s_hpfs_chk) {
+					if (de->first && !de->last && (de->namelen != 2 || de ->name[0] != 1 || de->name[1] != 1)) hpfs_error(inode->i_sb, "hpfs_readdir: bad ^A^A entry; pos = %08x", old_pos);
+					if (de->last && (de->namelen != 1 || de ->name[0] != 255)) hpfs_error(inode->i_sb, "hpfs_readdir: bad \\377 entry; pos = %08x", old_pos);
+				}
+				hpfs_brelse4(&qbh);
+				goto again;
+			}
+			tempname = hpfs_translate_name(inode->i_sb, de->name, de->namelen, lc, de->not_8x3);
+			if (filldir(dirent, tempname, de->namelen, old_pos, de->fnode, DT_UNKNOWN) < 0) {
+				filp->f_pos = old_pos;
+				if (tempname != (char *)de->name) kfree(tempname);
+				hpfs_brelse4(&qbh);
+				hpfs_unlock_inode(inode);
+				return 0;
+			}
+			if (tempname != (char *)de->name) kfree(tempname);
+			hpfs_brelse4(&qbh);
+	}
+}
+
+/*
+ * lookup.  Search the specified directory for the specified name, set
+ * *result to the corresponding inode.
+ *
+ * lookup uses the inode number to tell read_inode whether it is reading
+ * the inode of a directory or a file -- file ino's are odd, directory
+ * ino's are even.  read_inode avoids i/o for file inodes; everything
+ * needed is up here in the directory.  (And file fnodes are out in
+ * the boondocks.)
+ *
+ *    - M.P.: this is over, sometimes we've got to read file's fnode for eas
+ *	      inode numbers are just fnode sector numbers; iget lock is used
+ *	      to tell read_inode to read fnode or not.
+ */
+
+struct dentry *hpfs_lookup(struct inode *dir, struct dentry *dentry)
+{
+	const char *name = dentry->d_name.name;
+	unsigned len = dentry->d_name.len;
+	struct quad_buffer_head qbh;
+	struct hpfs_dirent *de;
+	ino_t ino;
+	int err;
+	struct inode *result = NULL;
+
+	if ((err = hpfs_chk_name((char *)name, &len))) {
+		if (err == -ENAMETOOLONG) return ERR_PTR(-ENAMETOOLONG);
+		goto end_add;
+	}
+
+	hpfs_lock_inode(dir);
+	/*
+	 * '.' and '..' will never be passed here.
+	 */
+
+	de = map_dirent(dir, dir->i_hpfs_dno, (char *) name, len, NULL, &qbh);
+
+	/*
+	 * This is not really a bailout, just means file not found.
+	 */
+
+	if (!de) goto end;
+
+	/*
+	 * Get inode number, what we're after.
+	 */
+
+	ino = de->fnode;
+
+	/*
+	 * Go find or make an inode.
+	 */
+
+	hpfs_lock_iget(dir->i_sb, de->directory || (de->ea_size && dir->i_sb->s_hpfs_eas) ? 1 : 2);
+	if (!(result = iget(dir->i_sb, ino))) {
+		hpfs_unlock_iget(dir->i_sb);
+		hpfs_error(dir->i_sb, "hpfs_lookup: can't get inode");
+		goto bail1;
+	}
+	if (!de->directory) result->i_hpfs_parent_dir = dir->i_ino;
+	hpfs_unlock_iget(dir->i_sb);
+
+	hpfs_decide_conv(result, (char *)name, len);
+
+	if (de->has_acl || de->has_xtd_perm) if (!(dir->i_sb->s_flags & MS_RDONLY)) {
+		hpfs_error(result->i_sb, "ACLs or XPERM found. This is probably HPFS386. This driver doesn't support it now. Send me some info on these structures");
+		goto bail1;
+	}
+
+	/*
+	 * Fill in the info from the directory if this is a newly created
+	 * inode.
+	 */
+
+	if (!result->i_ctime) {
+		if (!(result->i_ctime = local_to_gmt(dir->i_sb, de->creation_date)))
+			result->i_ctime = 1;
+		result->i_mtime = local_to_gmt(dir->i_sb, de->write_date);
+		result->i_atime = local_to_gmt(dir->i_sb, de->read_date);
+		result->i_hpfs_ea_size = de->ea_size;
+		if (!result->i_hpfs_ea_mode && de->read_only)
+			result->i_mode &= ~0222;
+		if (!de->directory) {
+			if (result->i_size == -1) {
+				result->i_size = de->file_size;
+				result->i_data.a_ops = &hpfs_aops;
+				result->u.hpfs_i.mmu_private = result->i_size;
+			/*
+			 * i_blocks should count the fnode and any anodes.
+			 * We count 1 for the fnode and don't bother about
+			 * anodes -- the disk heads are on the directory band
+			 * and we want them to stay there.
+			 */
+				result->i_blocks = 1 + ((result->i_size + 511) >> 9);
+			}
+		}
+	}
+
+	hpfs_brelse4(&qbh);
+
+	/*
+	 * Made it.
+	 */
+
+	end:
+	hpfs_unlock_inode(dir);
+	end_add:
+	hpfs_set_dentry_operations(dentry);
+	d_add(dentry, result);
+	return NULL;
+
+	/*
+	 * Didn't.
+	 */
+	bail1:
+	
+	hpfs_brelse4(&qbh);
+	
+	/*bail:*/
+
+	hpfs_unlock_inode(dir);
+	return ERR_PTR(-ENOENT);
+}
diff --git a/fs/hpfs/dnode.c b/fs/hpfs/dnode.c
new file mode 100644
index 00000000000000..78286ad36d118b
--- /dev/null
+++ b/fs/hpfs/dnode.c
@@ -0,0 +1,1070 @@
+/*
+ *  linux/fs/hpfs/dnode.c
+ *
+ *  Mikulas Patocka (mikulas@artax.karlin.mff.cuni.cz), 1998-1999
+ *
+ *  handling directory dnode tree - adding, deleteing & searching for dirents
+ */
+
+#include "hpfs_fn.h"
+
+static loff_t get_pos(struct dnode *d, struct hpfs_dirent *fde)
+{
+	struct hpfs_dirent *de;
+	struct hpfs_dirent *de_end = dnode_end_de(d);
+	int i = 1;
+	for (de = dnode_first_de(d); de < de_end; de = de_next_de(de)) {
+		if (de == fde) return ((loff_t) d->self << 4) | (loff_t)i;
+		i++;
+	}
+	printk("HPFS: get_pos: not_found\n");
+	return ((loff_t)d->self << 4) | (loff_t)1;
+}
+
+void hpfs_add_pos(struct inode *inode, loff_t *pos)
+{
+	int i = 0;
+	loff_t **ppos;
+	if (inode->i_hpfs_rddir_off)
+		for (; inode->i_hpfs_rddir_off[i]; i++)
+			if (inode->i_hpfs_rddir_off[i] == pos) return;
+	if (!(i&0x0f)) {
+		if (!(ppos = kmalloc((i+0x11) * sizeof(loff_t*), GFP_KERNEL))) {
+			printk("HPFS: out of memory for position list\n");
+			return;
+		}
+		if (inode->i_hpfs_rddir_off) {
+			memcpy(ppos, inode->i_hpfs_rddir_off, i * sizeof(loff_t));
+			kfree(inode->i_hpfs_rddir_off);
+		}
+		inode->i_hpfs_rddir_off = ppos;
+	}
+	inode->i_hpfs_rddir_off[i] = pos;
+	inode->i_hpfs_rddir_off[i + 1] = NULL;
+}
+
+void hpfs_del_pos(struct inode *inode, loff_t *pos)
+{
+	loff_t **i, **j;
+	if (!inode->i_hpfs_rddir_off) goto not_f;
+	for (i = inode->i_hpfs_rddir_off; *i; i++) if (*i == pos) goto fnd;
+	goto not_f;
+	fnd:
+	for (j = i + 1; *j; j++) ;
+	*i = *(j - 1);
+	*(j - 1) = NULL;
+	if (j - 1 == inode->i_hpfs_rddir_off) {
+		kfree(inode->i_hpfs_rddir_off);
+		inode->i_hpfs_rddir_off = NULL;
+	}
+	return;
+	not_f:
+	/*printk("HPFS: warning: position pointer %p->%08x not found\n", pos, (int)*pos);*/
+	return;
+}
+
+static void for_all_poss(struct inode *inode, void (*f)(loff_t *, loff_t, loff_t),
+			 loff_t p1, loff_t p2)
+{
+	loff_t **i;
+	if (!inode->i_hpfs_rddir_off) return;
+	for (i = inode->i_hpfs_rddir_off; *i; i++) (*f)(*i, p1, p2);
+	return;
+}
+
+void hpfs_pos_subst(loff_t *p, loff_t f, loff_t t)
+{
+	if (*p == f) *p = t;
+}
+
+/*void hpfs_hpfs_pos_substd(loff_t *p, loff_t f, loff_t t)
+{
+	if ((*p & ~0x3f) == (f & ~0x3f)) *p = (t & ~0x3f) | (*p & 0x3f);
+}*/
+
+void hpfs_pos_ins(loff_t *p, loff_t d, loff_t c)
+{
+	if ((*p & ~0x3f) == (d & ~0x3f) && (*p & 0x3f) >= (d & 0x3f)) {
+		int n = (*p & 0x3f) + c;
+		if (n > 0x3f) printk("HPFS: hpfs_pos_ins: %08x + %d\n", (int)*p, (int)c >> 8);
+		else *p = (*p & ~0x3f) | n;
+	}
+}
+
+void hpfs_pos_del(loff_t *p, loff_t d, loff_t c)
+{
+	if ((*p & ~0x3f) == (d & ~0x3f) && (*p & 0x3f) >= (d & 0x3f)) {
+		int n = (*p & 0x3f) - c;
+		if (n < 1) printk("HPFS: hpfs_pos_ins: %08x - %d\n", (int)*p, (int)c >> 8);
+		else *p = (*p & ~0x3f) | n;
+	}
+}
+
+static struct hpfs_dirent *dnode_pre_last_de(struct dnode *d)
+{
+	struct hpfs_dirent *de, *de_end, *dee = NULL, *deee = NULL;
+	de_end = dnode_end_de(d);
+	for (de = dnode_first_de(d); de < de_end; de = de_next_de(de)) {
+		deee = dee; dee = de;
+	}	
+	return deee;
+}
+
+static struct hpfs_dirent *dnode_last_de(struct dnode *d)
+{
+	struct hpfs_dirent *de, *de_end, *dee = NULL;
+	de_end = dnode_end_de(d);
+	for (de = dnode_first_de(d); de < de_end; de = de_next_de(de)) {
+		dee = de;
+	}	
+	return dee;
+}
+
+static void set_last_pointer(struct super_block *s, struct dnode *d, dnode_secno ptr)
+{
+	struct hpfs_dirent *de;
+	if (!(de = dnode_last_de(d))) {
+		hpfs_error(s, "set_last_pointer: empty dnode %08x", d->self);
+		return;
+	}
+	if (s->s_hpfs_chk) {
+		if (de->down) {
+			hpfs_error(s, "set_last_pointer: dnode %08x has already last pointer %08x",
+				d->self, de_down_pointer(de));
+			return;
+		}
+		if (de->length != 32) {
+			hpfs_error(s, "set_last_pointer: bad last dirent in dnode %08x", d->self);
+			return;
+		}
+	}
+	if (ptr) {
+		if ((d->first_free += 4) > 2048) {
+			hpfs_error(s,"set_last_pointer: too long dnode %08x", d->self);
+			d->first_free -= 4;
+			return;
+		}
+		de->length = 36;
+		de->down = 1;
+		*(dnode_secno *)((char *)de + 32) = ptr;
+	}
+}
+
+/* Add an entry to dnode and don't care if it grows over 2048 bytes */
+
+struct hpfs_dirent *hpfs_add_de(struct super_block *s, struct dnode *d, unsigned char *name,
+				unsigned namelen, secno down_ptr)
+{
+	struct hpfs_dirent *de;
+	struct hpfs_dirent *de_end = dnode_end_de(d);
+	unsigned d_size = de_size(namelen, down_ptr);
+	for (de = dnode_first_de(d); de < de_end; de = de_next_de(de)) {
+		int c = hpfs_compare_names(s, name, namelen, de->name, de->namelen, de->last);
+		if (!c) {
+			hpfs_error(s, "name (%c,%d) already exists in dnode %08x", *name, namelen, d->self);
+			return NULL;
+		}
+		if (c < 0) break;
+	}
+	memmove((char *)de + d_size, de, (char *)de_end - (char *)de);
+	memset(de, 0, d_size);
+	if (down_ptr) {
+		*(int *)((char *)de + d_size - 4) = down_ptr;
+		de->down = 1;
+	}
+	de->length = d_size;
+	if (down_ptr) de->down = 1;
+	de->not_8x3 = hpfs_is_name_long(name, namelen);
+	de->namelen = namelen;
+	memcpy(de->name, name, namelen);
+	d->first_free += d_size;
+	return de;
+}
+
+/* Delete dirent and don't care about it's subtree */
+
+void hpfs_delete_de(struct super_block *s, struct dnode *d, struct hpfs_dirent *de)
+{
+	if (de->last) {
+		hpfs_error(s, "attempt to delete last dirent in dnode %08x", d->self);
+		return;
+	}
+	d->first_free -= de->length;
+	memmove(de, de_next_de(de), d->first_free + (char *)d - (char *)de);
+}
+
+static void fix_up_ptrs(struct super_block *s, struct dnode *d)
+{
+	struct hpfs_dirent *de;
+	struct hpfs_dirent *de_end = dnode_end_de(d);
+	dnode_secno dno = d->self;
+	for (de = dnode_first_de(d); de < de_end; de = de_next_de(de))
+		if (de->down) {
+			struct quad_buffer_head qbh;
+			struct dnode *dd;
+			if ((dd = hpfs_map_dnode(s, de_down_pointer(de), &qbh))) {
+				if (dd->up != dno || dd->root_dnode) {
+					dd->up = dno;
+					dd->root_dnode = 0;
+					hpfs_mark_4buffers_dirty(&qbh);
+				}
+				hpfs_brelse4(&qbh);
+			}
+		}
+}
+
+/* Add an entry to dnode and do dnode splitting if required */
+
+int hpfs_add_to_dnode(struct inode *i, dnode_secno dno, unsigned char *name, unsigned namelen,
+		      struct hpfs_dirent *new_de, dnode_secno down_ptr)
+{
+	struct quad_buffer_head qbh, qbh1, qbh2;
+	struct dnode *d, *ad, *rd, *nd = NULL;
+	dnode_secno adno, rdno;
+	struct hpfs_dirent *de;
+	struct hpfs_dirent nde;
+	char *nname;
+	int h;
+	int pos;
+	struct buffer_head *bh;
+	struct fnode *fnode;
+	int c1, c2 = 0;
+	if (!(nname = kmalloc(256, GFP_KERNEL))) {
+		printk("HPFS: out of memory, can't add to dnode\n");
+		return 1;
+	}
+	go_up:
+	if (namelen >= 256) {
+		hpfs_error(i->i_sb, "hpfs_add_to_dnode: namelen == %d", namelen);
+		if (nd) kfree(nd);
+		kfree(nname);
+		return 1;
+	}
+	if (!(d = hpfs_map_dnode(i->i_sb, dno, &qbh))) {
+		if (nd) kfree(nd);
+		kfree(nname);
+		return 1;
+	}
+	go_up_a:
+	if (i->i_sb->s_hpfs_chk)
+		if (hpfs_stop_cycles(i->i_sb, dno, &c1, &c2, "hpfs_add_to_dnode")) {
+			hpfs_brelse4(&qbh);
+			if (nd) kfree(nd);
+			kfree(nname);
+			return 1;
+		}
+	if (d->first_free + de_size(namelen, down_ptr) <= 2048) {
+		loff_t t;
+		copy_de(de=hpfs_add_de(i->i_sb, d, name, namelen, down_ptr), new_de);
+		t = get_pos(d, de);
+		for_all_poss(i, hpfs_pos_ins, t, 1);
+		for_all_poss(i, hpfs_pos_subst, 4, t);
+		for_all_poss(i, hpfs_pos_subst, 5, t + 1);
+		hpfs_mark_4buffers_dirty(&qbh);
+		hpfs_brelse4(&qbh);
+		if (nd) kfree(nd);
+		kfree(nname);
+		return 0;
+	}
+	if (!nd) if (!(nd = kmalloc(0x924, GFP_KERNEL))) {
+		/* 0x924 is a max size of dnode after adding a dirent with
+		   max name length. We alloc this only once. There must
+		   not be any error while splitting dnodes, otherwise the
+		   whole directory, not only file we're adding, would
+		   be lost. */
+		printk("HPFS: out of memory for dnode splitting\n");
+		hpfs_brelse4(&qbh);
+		kfree(nname);
+		return 1;
+	}	
+	memcpy(nd, d, d->first_free);
+	copy_de(de = hpfs_add_de(i->i_sb, nd, name, namelen, down_ptr), new_de);
+	for_all_poss(i, hpfs_pos_ins, get_pos(nd, de), 1);
+	h = ((char *)dnode_last_de(nd) - (char *)nd) / 2 + 10;
+	if (!(ad = hpfs_alloc_dnode(i->i_sb, d->up, &adno, &qbh1, 0))) {
+		hpfs_error(i->i_sb, "unable to alloc dnode - dnode tree will be corrupted");
+		hpfs_brelse4(&qbh);
+		kfree(nd);
+		kfree(nname);
+		return 1;
+	}
+	i->i_size += 2048;
+	i->i_blocks += 4;
+	pos = 1;
+	for (de = dnode_first_de(nd); (char *)de_next_de(de) - (char *)nd < h; de = de_next_de(de)) {
+		copy_de(hpfs_add_de(i->i_sb, ad, de->name, de->namelen, de->down ? de_down_pointer(de) : 0), de);
+		for_all_poss(i, hpfs_pos_subst, ((loff_t)dno << 4) | pos, ((loff_t)adno << 4) | pos);
+		pos++;
+	}
+	copy_de(new_de = &nde, de);
+	memcpy(name = nname, de->name, namelen = de->namelen);
+	for_all_poss(i, hpfs_pos_subst, ((loff_t)dno << 4) | pos, 4);
+	down_ptr = adno;
+	set_last_pointer(i->i_sb, ad, de->down ? de_down_pointer(de) : 0);
+	de = de_next_de(de);
+	memmove((char *)nd + 20, de, nd->first_free + (char *)nd - (char *)de);
+	nd->first_free -= (char *)de - (char *)nd - 20;
+	memcpy(d, nd, nd->first_free);
+	for_all_poss(i, hpfs_pos_del, (loff_t)dno << 4, pos);
+	fix_up_ptrs(i->i_sb, ad);
+	if (!d->root_dnode) {
+		dno = ad->up = d->up;
+		hpfs_mark_4buffers_dirty(&qbh);
+		hpfs_brelse4(&qbh);
+		hpfs_mark_4buffers_dirty(&qbh1);
+		hpfs_brelse4(&qbh1);
+		goto go_up;
+	}
+	if (!(rd = hpfs_alloc_dnode(i->i_sb, d->up, &rdno, &qbh2, 0))) {
+		hpfs_error(i->i_sb, "unable to alloc dnode - dnode tree will be corrupted");
+		hpfs_brelse4(&qbh);
+		hpfs_brelse4(&qbh1);
+		kfree(nd);
+		kfree(nname);
+		return 1;
+	}
+	i->i_size += 2048;
+	i->i_blocks += 4;
+	rd->root_dnode = 1;
+	rd->up = d->up;
+	if (!(fnode = hpfs_map_fnode(i->i_sb, d->up, &bh))) {
+		hpfs_free_dnode(i->i_sb, rdno);
+		hpfs_brelse4(&qbh);
+		hpfs_brelse4(&qbh1);
+		hpfs_brelse4(&qbh2);
+		kfree(nd);
+		kfree(nname);
+		return 1;
+	}
+	fnode->u.external[0].disk_secno = rdno;
+	mark_buffer_dirty(bh);
+	brelse(bh);
+	d->up = ad->up = i->i_hpfs_dno = rdno;
+	d->root_dnode = ad->root_dnode = 0;
+	hpfs_mark_4buffers_dirty(&qbh);
+	hpfs_brelse4(&qbh);
+	hpfs_mark_4buffers_dirty(&qbh1);
+	hpfs_brelse4(&qbh1);
+	qbh = qbh2;
+	set_last_pointer(i->i_sb, rd, dno);
+	dno = rdno;
+	d = rd;
+	goto go_up_a;
+}
+
+/*
+ * Add an entry to directory btree.
+ * I hate such crazy directory structure.
+ * It's easy to read but terrible to write.
+ * I wrote this directory code 4 times.
+ * I hope, now it's finally bug-free.
+ */
+
+int hpfs_add_dirent(struct inode *i, unsigned char *name, unsigned namelen,
+		    struct hpfs_dirent *new_de, int cdepth)
+{
+	struct dnode *d;
+	struct hpfs_dirent *de, *de_end;
+	struct quad_buffer_head qbh;
+	dnode_secno dno;
+	int c;
+	int c1, c2 = 0;
+	dno = i->i_hpfs_dno;
+	down:
+	if (i->i_sb->s_hpfs_chk)
+		if (hpfs_stop_cycles(i->i_sb, dno, &c1, &c2, "hpfs_add_dirent")) return 1;
+	if (!(d = hpfs_map_dnode(i->i_sb, dno, &qbh))) return 1;
+	de_end = dnode_end_de(d);
+	for (de = dnode_first_de(d); de < de_end; de = de_next_de(de)) {
+		if (!(c = hpfs_compare_names(i->i_sb, name, namelen, de->name, de->namelen, de->last))) {
+			hpfs_brelse4(&qbh);
+			return -1;
+		}	
+		if (c < 0) {
+			if (de->down) {
+				dno = de_down_pointer(de);
+				hpfs_brelse4(&qbh);
+				goto down;
+			}
+			break;
+		}
+	}
+	hpfs_brelse4(&qbh);
+	if (!cdepth) hpfs_lock_creation(i->i_sb);
+	if (hpfs_check_free_dnodes(i->i_sb, FREE_DNODES_ADD)) {
+		c = 1;
+		goto ret;
+	}	
+	i->i_version = ++event;
+	c = hpfs_add_to_dnode(i, dno, name, namelen, new_de, 0);
+	ret:
+	if (!cdepth) hpfs_unlock_creation(i->i_sb);
+	return c;
+}
+
+/* 
+ * Find dirent with higher name in 'from' subtree and move it to 'to' dnode.
+ * Return the dnode we moved from (to be checked later if it's empty)
+ */
+
+static secno move_to_top(struct inode *i, dnode_secno from, dnode_secno to)
+{
+	dnode_secno dno, ddno;
+	dnode_secno chk_up = to;
+	struct dnode *dnode;
+	struct quad_buffer_head qbh;
+	struct hpfs_dirent *de, *nde;
+	int a;
+	loff_t t;
+	int c1, c2 = 0;
+	dno = from;
+	while (1) {
+		if (i->i_sb->s_hpfs_chk)
+			if (hpfs_stop_cycles(i->i_sb, dno, &c1, &c2, "move_to_top"))
+				return 0;
+		if (!(dnode = hpfs_map_dnode(i->i_sb, dno, &qbh))) return 0;
+		if (i->i_sb->s_hpfs_chk) {
+			if (dnode->up != chk_up) {
+				hpfs_error(i->i_sb, "move_to_top: up pointer from %08x should be %08x, is %08x",
+					dno, chk_up, dnode->up);
+				hpfs_brelse4(&qbh);
+				return 0;
+			}
+			chk_up = dno;
+		}
+		if (!(de = dnode_last_de(dnode))) {
+			hpfs_error(i->i_sb, "move_to_top: dnode %08x has no last de", dno);
+			hpfs_brelse4(&qbh);
+			return 0;
+		}
+		if (!de->down) break;
+		dno = de_down_pointer(de);
+		hpfs_brelse4(&qbh);
+	}
+	while (!(de = dnode_pre_last_de(dnode))) {
+		dnode_secno up = dnode->up;
+		hpfs_brelse4(&qbh);
+		hpfs_free_dnode(i->i_sb, dno);
+		i->i_size -= 2048;
+		i->i_blocks -= 4;
+		for_all_poss(i, hpfs_pos_subst, ((loff_t)dno << 4) | 1, 5);
+		if (up == to) return to;
+		if (!(dnode = hpfs_map_dnode(i->i_sb, up, &qbh))) return 0;
+		if (dnode->root_dnode) {
+			hpfs_error(i->i_sb, "move_to_top: got to root_dnode while moving from %08x to %08x", from, to);
+			hpfs_brelse4(&qbh);
+			return 0;
+		}
+		de = dnode_last_de(dnode);
+		if (!de || !de->down) {
+			hpfs_error(i->i_sb, "move_to_top: dnode %08x doesn't point down to %08x", up, dno);
+			hpfs_brelse4(&qbh);
+			return 0;
+		}
+		dnode->first_free -= 4;
+		de->length -= 4;
+		de->down = 0;
+		hpfs_mark_4buffers_dirty(&qbh);
+		dno = up;
+	}
+	t = get_pos(dnode, de);
+	for_all_poss(i, hpfs_pos_subst, t, 4);
+	for_all_poss(i, hpfs_pos_subst, t + 1, 5);
+	if (!(nde = kmalloc(de->length, GFP_KERNEL))) {
+		hpfs_error(i->i_sb, "out of memory for dirent - directory will be corrupted");
+		hpfs_brelse4(&qbh);
+		return 0;
+	}
+	memcpy(nde, de, de->length);
+	ddno = de->down ? de_down_pointer(de) : 0;
+	hpfs_delete_de(i->i_sb, dnode, de);
+	set_last_pointer(i->i_sb, dnode, ddno);
+	hpfs_mark_4buffers_dirty(&qbh);
+	hpfs_brelse4(&qbh);
+	a = hpfs_add_to_dnode(i, to, nde->name, nde->namelen, nde, from);
+	kfree(nde);
+	if (a) return 0;
+	return dno;
+}
+
+/* 
+ * Check if a dnode is empty and delete it from the tree
+ * (chkdsk doesn't like empty dnodes)
+ */
+
+static void delete_empty_dnode(struct inode *i, dnode_secno dno)
+{
+	struct quad_buffer_head qbh;
+	struct dnode *dnode;
+	dnode_secno down, up, ndown;
+	int p;
+	struct hpfs_dirent *de;
+	int c1, c2 = 0;
+	try_it_again:
+	if (hpfs_stop_cycles(i->i_sb, dno, &c1, &c2, "delete_empty_dnode")) return;
+	if (!(dnode = hpfs_map_dnode(i->i_sb, dno, &qbh))) return;
+	if (dnode->first_free > 56) goto end;
+	if (dnode->first_free == 52 || dnode->first_free == 56) {
+		struct hpfs_dirent *de_end;
+		int root = dnode->root_dnode;
+		up = dnode->up;
+		de = dnode_first_de(dnode);
+		down = de->down ? de_down_pointer(de) : 0;
+		if (i->i_sb->s_hpfs_chk) if (root && !down) {
+			hpfs_error(i->i_sb, "delete_empty_dnode: root dnode %08x is empty", dno);
+			goto end;
+		}
+		hpfs_brelse4(&qbh);
+		hpfs_free_dnode(i->i_sb, dno);
+		i->i_size -= 2048;
+		i->i_blocks -= 4;
+		if (root) {
+			struct fnode *fnode;
+			struct buffer_head *bh;
+			struct dnode *d1;
+			struct quad_buffer_head qbh1;
+			if (i->i_sb->s_hpfs_chk) if (up != i->i_ino) {
+				hpfs_error(i->i_sb, "bad pointer to fnode, dnode %08x, pointing to %08x, should be %08x", dno, up, i->i_ino);
+				return;
+			}
+			if ((d1 = hpfs_map_dnode(i->i_sb, down, &qbh1))) {
+				d1->up = up;
+				d1->root_dnode = 1;
+				hpfs_mark_4buffers_dirty(&qbh1);
+				hpfs_brelse4(&qbh1);
+			}
+			if ((fnode = hpfs_map_fnode(i->i_sb, up, &bh))) {
+				fnode->u.external[0].disk_secno = down;
+				mark_buffer_dirty(bh);
+				brelse(bh);
+			}
+			i->i_hpfs_dno = down;
+			for_all_poss(i, hpfs_pos_subst, ((loff_t)dno << 4) | 1, (loff_t) 12);
+			return;
+		}
+		if (!(dnode = hpfs_map_dnode(i->i_sb, up, &qbh))) return;
+		p = 1;
+		de_end = dnode_end_de(dnode);
+		for (de = dnode_first_de(dnode); de < de_end; de = de_next_de(de), p++)
+			if (de->down) if (de_down_pointer(de) == dno) goto fnd;
+		hpfs_error(i->i_sb, "delete_empty_dnode: pointer to dnode %08x not found in dnode %08x", dno, up);
+		goto end;
+		fnd:
+		for_all_poss(i, hpfs_pos_subst, ((loff_t)dno << 4) | 1, ((loff_t)up << 4) | p);
+		if (!down) {
+			de->down = 0;
+			de->length -= 4;
+			dnode->first_free -= 4;
+			memmove(de_next_de(de), (char *)de_next_de(de) + 4,
+				(char *)dnode + dnode->first_free - (char *)de_next_de(de));
+		} else {
+			struct dnode *d1;
+			struct quad_buffer_head qbh1;
+			*(dnode_secno *) ((void *) de + de->length - 4) = down;
+			if ((d1 = hpfs_map_dnode(i->i_sb, down, &qbh1))) {
+				d1->up = up;
+				hpfs_mark_4buffers_dirty(&qbh1);
+				hpfs_brelse4(&qbh1);
+			}
+		}
+	} else {
+		hpfs_error(i->i_sb, "delete_empty_dnode: dnode %08x, first_free == %03x", dno, dnode->first_free);
+		goto end;
+	}
+
+	if (!de->last) {
+		struct hpfs_dirent *de_next = de_next_de(de);
+		struct hpfs_dirent *de_cp;
+		struct dnode *d1;
+		struct quad_buffer_head qbh1;
+		if (!de_next->down) goto endm;
+		ndown = de_down_pointer(de_next);
+		if (!(de_cp = kmalloc(de->length, GFP_KERNEL))) {
+			printk("HPFS: out of memory for dtree balancing\n");
+			goto endm;
+		}
+		memcpy(de_cp, de, de->length);
+		hpfs_delete_de(i->i_sb, dnode, de);
+		hpfs_mark_4buffers_dirty(&qbh);
+		hpfs_brelse4(&qbh);
+		for_all_poss(i, hpfs_pos_subst, ((loff_t)up << 4) | p, 4);
+		for_all_poss(i, hpfs_pos_del, ((loff_t)up << 4) | p, 1);
+		if (de_cp->down) if ((d1 = hpfs_map_dnode(i->i_sb, de_down_pointer(de_cp), &qbh1))) {
+			d1->up = ndown;
+			hpfs_mark_4buffers_dirty(&qbh1);
+			hpfs_brelse4(&qbh1);
+		}
+		hpfs_add_to_dnode(i, ndown, de_cp->name, de_cp->namelen, de_cp, de_cp->down ? de_down_pointer(de_cp) : 0);
+		/*printk("UP-TO-DNODE: %08x (ndown = %08x, down = %08x, dno = %08x)\n", up, ndown, down, dno);*/
+		dno = up;
+		kfree(de_cp);
+		goto try_it_again;
+	} else {
+		struct hpfs_dirent *de_prev = dnode_pre_last_de(dnode);
+		struct hpfs_dirent *de_cp;
+		struct dnode *d1;
+		struct quad_buffer_head qbh1;
+		dnode_secno dlp;
+		if (!de_prev) {
+			hpfs_error(i->i_sb, "delete_empty_dnode: empty dnode %08x", up);
+			hpfs_mark_4buffers_dirty(&qbh);
+			hpfs_brelse4(&qbh);
+			dno = up;
+			goto try_it_again;
+		}
+		if (!de_prev->down) goto endm;
+		ndown = de_down_pointer(de_prev);
+		if ((d1 = hpfs_map_dnode(i->i_sb, ndown, &qbh1))) {
+			struct hpfs_dirent *del = dnode_last_de(d1);
+			dlp = del->down ? de_down_pointer(del) : 0;
+			if (!dlp && down) {
+				if (d1->first_free > 2044) {
+					if (i->i_sb->s_hpfs_chk >= 2) {
+						printk("HPFS: warning: unbalanced dnode tree, see hpfs.txt 4 more info\n");
+						printk("HPFS: warning: terminating balancing operation\n");
+					}
+					hpfs_brelse4(&qbh1);
+					goto endm;
+				}
+				if (i->i_sb->s_hpfs_chk >= 2) {
+					printk("HPFS: warning: unbalanced dnode tree, see hpfs.txt 4 more info\n");
+					printk("HPFS: warning: goin'on\n");
+				}
+				del->length += 4;
+				del->down = 1;
+				d1->first_free += 4;
+			}
+			if (dlp && !down) {
+				del->length -= 4;
+				del->down = 0;
+				d1->first_free -= 4;
+			} else if (down)
+				*(dnode_secno *) ((void *) del + del->length - 4) = down;
+		} else goto endm;
+		if (!(de_cp = kmalloc(de_prev->length, GFP_KERNEL))) {
+			printk("HPFS: out of memory for dtree balancing\n");
+			hpfs_brelse4(&qbh1);
+			goto endm;
+		}
+		hpfs_mark_4buffers_dirty(&qbh1);
+		hpfs_brelse4(&qbh1);
+		memcpy(de_cp, de_prev, de_prev->length);
+		hpfs_delete_de(i->i_sb, dnode, de_prev);
+		if (!de_prev->down) {
+			de_prev->length += 4;
+			de_prev->down = 1;
+			dnode->first_free += 4;
+		}
+		*(dnode_secno *) ((void *) de_prev + de_prev->length - 4) = ndown;
+		hpfs_mark_4buffers_dirty(&qbh);
+		hpfs_brelse4(&qbh);
+		for_all_poss(i, hpfs_pos_subst, ((loff_t)up << 4) | (p - 1), 4);
+		for_all_poss(i, hpfs_pos_subst, ((loff_t)up << 4) | p, ((loff_t)up << 4) | (p - 1));
+		if (down) if ((d1 = hpfs_map_dnode(i->i_sb, de_down_pointer(de), &qbh1))) {
+			d1->up = ndown;
+			hpfs_mark_4buffers_dirty(&qbh1);
+			hpfs_brelse4(&qbh1);
+		}
+		hpfs_add_to_dnode(i, ndown, de_cp->name, de_cp->namelen, de_cp, dlp);
+		dno = up;
+		kfree(de_cp);
+		goto try_it_again;
+	}
+	endm:
+	hpfs_mark_4buffers_dirty(&qbh);
+	end:
+	hpfs_brelse4(&qbh);
+}
+
+
+/* Delete dirent from directory */
+
+int hpfs_remove_dirent(struct inode *i, dnode_secno dno, struct hpfs_dirent *de,
+		       struct quad_buffer_head *qbh, int depth)
+{
+	struct dnode *dnode = qbh->data;
+	dnode_secno down = 0;
+	int lock = 0;
+	loff_t t;
+	if (de->first || de->last) {
+		hpfs_error(i->i_sb, "hpfs_remove_dirent: attempt to delete first or last dirent in dnode %08x", dno);
+		hpfs_brelse4(qbh);
+		return 1;
+	}
+	if (de->down) down = de_down_pointer(de);
+	if (depth && (de->down || (de == dnode_first_de(dnode) && de_next_de(de)->last))) {
+		lock = 1;
+		hpfs_lock_creation(i->i_sb);
+		if (hpfs_check_free_dnodes(i->i_sb, FREE_DNODES_DEL)) {
+			hpfs_brelse4(qbh);
+			hpfs_unlock_creation(i->i_sb);
+			return 2;
+		}
+	}
+	i->i_version = ++event;
+	for_all_poss(i, hpfs_pos_del, (t = get_pos(dnode, de)) + 1, 1);
+	hpfs_delete_de(i->i_sb, dnode, de);
+	hpfs_mark_4buffers_dirty(qbh);
+	hpfs_brelse4(qbh);
+	if (down) {
+		dnode_secno a = move_to_top(i, down, dno);
+		for_all_poss(i, hpfs_pos_subst, 5, t);
+		if (a) delete_empty_dnode(i, a);
+		if (lock) hpfs_unlock_creation(i->i_sb);
+		return !a;
+	}
+	delete_empty_dnode(i, dno);
+	if (lock) hpfs_unlock_creation(i->i_sb);
+	return 0;
+}
+
+void hpfs_count_dnodes(struct super_block *s, dnode_secno dno, int *n_dnodes,
+		       int *n_subdirs, int *n_items)
+{
+	struct dnode *dnode;
+	struct quad_buffer_head qbh;
+	struct hpfs_dirent *de;
+	dnode_secno ptr, odno = 0;
+	int c1, c2 = 0;
+	int d1, d2 = 0;
+	go_down:
+	if (n_dnodes) (*n_dnodes)++;
+	if (s->s_hpfs_chk)
+		if (hpfs_stop_cycles(s, dno, &c1, &c2, "hpfs_count_dnodes #1")) return;
+	ptr = 0;
+	go_up:
+	if (!(dnode = hpfs_map_dnode(s, dno, &qbh))) return;
+	if (s->s_hpfs_chk) if (odno && odno != -1 && dnode->up != odno)
+		hpfs_error(s, "hpfs_count_dnodes: bad up pointer; dnode %08x, down %08x points to %08x", odno, dno, dnode->up);
+	de = dnode_first_de(dnode);
+	if (ptr) while(1) {
+		if (de->down) if (de_down_pointer(de) == ptr) goto process_de;
+		if (de->last) {
+			hpfs_brelse4(&qbh);
+			hpfs_error(s, "hpfs_count_dnodes: pointer to dnode %08x not found in dnode %08x, got here from %08x",
+				ptr, dno, odno);
+			return;
+		}
+		de = de_next_de(de);
+	}
+	next_de:
+	if (de->down) {
+		odno = dno;
+		dno = de_down_pointer(de);
+		hpfs_brelse4(&qbh);
+		goto go_down;
+	}
+	process_de:
+	if (!de->first && !de->last && de->directory && n_subdirs) (*n_subdirs)++;
+	if (!de->first && !de->last && n_items) (*n_items)++;
+	if ((de = de_next_de(de)) < dnode_end_de(dnode)) goto next_de;
+	ptr = dno;
+	dno = dnode->up;
+	if (dnode->root_dnode) {
+		hpfs_brelse4(&qbh);
+		return;
+	}
+	hpfs_brelse4(&qbh);
+	if (s->s_hpfs_chk)
+		if (hpfs_stop_cycles(s, ptr, &d1, &d2, "hpfs_count_dnodes #2")) return;
+	odno = -1;
+	goto go_up;
+}
+
+static struct hpfs_dirent *map_nth_dirent(struct super_block *s, dnode_secno dno, int n,
+					  struct quad_buffer_head *qbh, struct dnode **dn)
+{
+	int i;
+	struct hpfs_dirent *de, *de_end;
+	struct dnode *dnode;
+	dnode = hpfs_map_dnode(s, dno, qbh);
+	if (!dnode) return NULL;
+	if (dn) *dn=dnode;
+	de = dnode_first_de(dnode);
+	de_end = dnode_end_de(dnode);
+	for (i = 1; de < de_end; i++, de = de_next_de(de)) {
+		if (i == n) {
+			return de;
+		}	
+		if (de->last) break;
+	}
+	hpfs_brelse4(qbh);
+	hpfs_error(s, "map_nth_dirent: n too high; dnode = %08x, requested %08x", dno, n);
+	return NULL;
+}
+
+dnode_secno hpfs_de_as_down_as_possible(struct super_block *s, dnode_secno dno)
+{
+	struct quad_buffer_head qbh;
+	dnode_secno d = dno;
+	dnode_secno up = 0;
+	struct hpfs_dirent *de;
+	int c1, c2 = 0;
+
+	again:
+	if (s->s_hpfs_chk)
+		if (hpfs_stop_cycles(s, d, &c1, &c2, "hpfs_de_as_down_as_possible"))
+			return d;
+	if (!(de = map_nth_dirent(s, d, 1, &qbh, NULL))) return dno;
+	if (s->s_hpfs_chk)
+		if (up && ((struct dnode *)qbh.data)->up != up)
+			hpfs_error(s, "hpfs_de_as_down_as_possible: bad up pointer; dnode %08x, down %08x points to %08x", up, d, ((struct dnode *)qbh.data)->up);
+	if (!de->down) {
+		hpfs_brelse4(&qbh);
+		return d;
+	}
+	up = d;
+	d = de_down_pointer(de);
+	hpfs_brelse4(&qbh);
+	goto again;
+}
+
+struct hpfs_dirent *map_pos_dirent(struct inode *inode, loff_t *posp,
+				   struct quad_buffer_head *qbh)
+{
+	loff_t pos;
+	unsigned c;
+	dnode_secno dno;
+	struct hpfs_dirent *de, *d;
+	struct hpfs_dirent *up_de;
+	struct hpfs_dirent *end_up_de;
+	struct dnode *dnode;
+	struct dnode *up_dnode;
+	struct quad_buffer_head qbh0;
+
+	pos = *posp;
+	dno = pos >> 6 << 2;
+	pos &= 077;
+	if (!(de = map_nth_dirent(inode->i_sb, dno, pos, qbh, &dnode)))
+		goto bail;
+
+	/* Going to the next dirent */
+	if ((d = de_next_de(de)) < dnode_end_de(dnode)) {
+		if (!(++*posp & 077)) {
+			hpfs_error(inode->i_sb, "map_pos_dirent: pos crossed dnode boundary; pos = %08x", *posp);
+			goto bail;
+		}
+		/* We're going down the tree */
+		if (d->down) {
+			*posp = ((loff_t) hpfs_de_as_down_as_possible(inode->i_sb, de_down_pointer(d)) << 4) + 1;
+		}
+	
+		return de;
+	}
+
+	/* Going up */
+	if (dnode->root_dnode) goto bail;
+
+	if (!(up_dnode = hpfs_map_dnode(inode->i_sb, dnode->up, &qbh0)))
+		goto bail;
+
+	end_up_de = dnode_end_de(up_dnode);
+	c = 0;
+	for (up_de = dnode_first_de(up_dnode); up_de < end_up_de;
+	     up_de = de_next_de(up_de)) {
+		if (!(++c & 077)) hpfs_error(inode->i_sb,
+			"map_pos_dirent: pos crossed dnode boundary; dnode = %08x", dnode->up);
+		if (up_de->down && de_down_pointer(up_de) == dno) {
+			*posp = ((loff_t) dnode->up << 4) + c;
+			hpfs_brelse4(&qbh0);
+			return de;
+		}
+	}
+	
+	hpfs_error(inode->i_sb, "map_pos_dirent: pointer to dnode %08x not found in parent dnode %08x",
+		dno, dnode->up);
+	hpfs_brelse4(&qbh0);
+	
+	bail:
+	*posp = 12;
+	return de;
+}
+
+/* Find a dirent in tree */
+
+struct hpfs_dirent *map_dirent(struct inode *inode, dnode_secno dno, char *name, unsigned len,
+			       dnode_secno *dd, struct quad_buffer_head *qbh)
+{
+	struct dnode *dnode;
+	struct hpfs_dirent *de;
+	struct hpfs_dirent *de_end;
+	int c1, c2 = 0;
+
+	if (!S_ISDIR(inode->i_mode)) hpfs_error(inode->i_sb, "map_dirent: not a directory\n");
+	again:
+	if (inode->i_sb->s_hpfs_chk)
+		if (hpfs_stop_cycles(inode->i_sb, dno, &c1, &c2, "map_dirent")) return NULL;
+	if (!(dnode = hpfs_map_dnode(inode->i_sb, dno, qbh))) return NULL;
+	
+	de_end = dnode_end_de(dnode);
+	for (de = dnode_first_de(dnode); de < de_end; de = de_next_de(de)) {
+		int t = hpfs_compare_names(inode->i_sb, name, len, de->name, de->namelen, de->last);
+		if (!t) {
+			if (dd) *dd = dno;
+			return de;
+		}
+		if (t < 0) {
+			if (de->down) {
+				dno = de_down_pointer(de);
+				hpfs_brelse4(qbh);
+				goto again;
+			}
+		break;
+		}
+	}
+	hpfs_brelse4(qbh);
+	return NULL;
+}
+
+/*
+ * Remove empty directory. In normal cases it is only one dnode with two
+ * entries, but we must handle also such obscure cases when it's a tree
+ * of empty dnodes.
+ */
+
+void hpfs_remove_dtree(struct super_block *s, dnode_secno dno)
+{
+	struct quad_buffer_head qbh;
+	struct dnode *dnode;
+	struct hpfs_dirent *de;
+	dnode_secno d1, d2, rdno = dno;
+	while (1) {
+		if (!(dnode = hpfs_map_dnode(s, dno, &qbh))) return;
+		de = dnode_first_de(dnode);
+		if (de->last) {
+			if (de->down) d1 = de_down_pointer(de);
+			else goto error;
+			hpfs_brelse4(&qbh);
+			hpfs_free_dnode(s, dno);
+			dno = d1;
+		} else break;
+	}
+	if (!de->first) goto error;
+	d1 = de->down ? de_down_pointer(de) : 0;
+	de = de_next_de(de);
+	if (!de->last) goto error;
+	d2 = de->down ? de_down_pointer(de) : 0;
+	hpfs_brelse4(&qbh);
+	hpfs_free_dnode(s, dno);
+	do {
+		while (d1) {
+			if (!(dnode = hpfs_map_dnode(s, dno = d1, &qbh))) return;
+			de = dnode_first_de(dnode);
+			if (!de->last) goto error;
+			d1 = de->down ? de_down_pointer(de) : 0;
+			hpfs_brelse4(&qbh);
+			hpfs_free_dnode(s, dno);
+		}
+		d1 = d2;
+		d2 = 0;
+	} while (d1);
+	return;
+	error:
+	hpfs_brelse4(&qbh);
+	hpfs_free_dnode(s, dno);
+	hpfs_error(s, "directory %08x is corrupted or not empty", rdno);
+}
+
+/* 
+ * Find dirent for specified fnode. Use truncated 15-char name in fnode as
+ * a help for searching.
+ */
+
+struct hpfs_dirent *map_fnode_dirent(struct super_block *s, fnode_secno fno,
+				     struct fnode *f, struct quad_buffer_head *qbh)
+{
+	char *name1;
+	char *name2;
+	int name1len, name2len;
+	struct dnode *d;
+	dnode_secno dno, downd;
+	struct fnode *upf;
+	struct buffer_head *bh;
+	struct hpfs_dirent *de, *de_end;
+	int c;
+	int c1, c2 = 0;
+	int d1, d2 = 0;
+	name1 = f->name;
+	if (!(name2 = kmalloc(256, GFP_KERNEL))) {
+		printk("HPFS: out of memory, can't map dirent\n");
+		return NULL;
+	}
+	if (f->len <= 15)
+		memcpy(name2, name1, name1len = name2len = f->len);
+	else {
+		memcpy(name2, name1, 15);
+		memset(name2 + 15, 0xff, 256 - 15);
+		/*name2[15] = 0xff;*/
+		name1len = 15; name2len = 256;
+	}
+	if (!(upf = hpfs_map_fnode(s, f->up, &bh))) {
+		kfree(name2);
+		return NULL;
+	}	
+	if (!upf->dirflag) {
+		brelse(bh);
+		hpfs_error(s, "fnode %08x has non-directory parent %08x", fno, f->up);
+		kfree(name2);
+		return NULL;
+	}
+	dno = upf->u.external[0].disk_secno;
+	brelse(bh);
+	go_down:
+	downd = 0;
+	go_up:
+	if (!(d = hpfs_map_dnode(s, dno, qbh))) {
+		kfree(name2);
+		return NULL;
+	}
+	de_end = dnode_end_de(d);
+	de = dnode_first_de(d);
+	if (downd) {
+		while (de < de_end) {
+			if (de->down) if (de_down_pointer(de) == downd) goto f;
+			de = de_next_de(de);
+		}
+		hpfs_error(s, "pointer to dnode %08x not found in dnode %08x", downd, dno);
+		hpfs_brelse4(qbh);
+		kfree(name2);
+		return NULL;
+	}
+	next_de:
+	if (de->fnode == fno) {
+		kfree(name2);
+		return de;
+	}
+	c = hpfs_compare_names(s, name1, name1len, de->name, de->namelen, de->last);
+	if (c < 0 && de->down) {
+		dno = de_down_pointer(de);
+		hpfs_brelse4(qbh);
+		if (s->s_hpfs_chk)
+			if (hpfs_stop_cycles(s, dno, &c1, &c2, "map_fnode_dirent #1")) {
+			kfree(name2);
+			return NULL;
+		}
+		goto go_down;
+	}
+	f:
+	if (de->fnode == fno) {
+		kfree(name2);
+		return de;
+	}
+	c = hpfs_compare_names(s, name2, name2len, de->name, de->namelen, de->last);
+	if (c < 0 && !de->last) goto not_found;
+	if ((de = de_next_de(de)) < de_end) goto next_de;
+	if (d->root_dnode) goto not_found;
+	downd = dno;
+	dno = d->up;
+	hpfs_brelse4(qbh);
+	if (s->s_hpfs_chk)
+		if (hpfs_stop_cycles(s, downd, &d1, &d2, "map_fnode_dirent #2")) {
+			kfree(name2);
+			return NULL;
+		}
+	goto go_up;
+	not_found:
+	hpfs_brelse4(qbh);
+	hpfs_error(s, "dirent for fnode %08x not found", fno);
+	kfree(name2);
+	return NULL;
+}
diff --git a/fs/hpfs/ea.c b/fs/hpfs/ea.c
new file mode 100644
index 00000000000000..85ee927dcaa7ad
--- /dev/null
+++ b/fs/hpfs/ea.c
@@ -0,0 +1,364 @@
+/*
+ *  linux/fs/hpfs/ea.c
+ *
+ *  Mikulas Patocka (mikulas@artax.karlin.mff.cuni.cz), 1998-1999
+ *
+ *  handling extended attributes
+ */
+
+#include <linux/string.h>
+#include "hpfs_fn.h"
+
+/* Remove external extended attributes. ano specifies whether a is a 
+   direct sector where eas starts or an anode */
+
+void hpfs_ea_ext_remove(struct super_block *s, secno a, int ano, unsigned len)
+{
+	unsigned pos = 0;
+	while (pos < len) {
+		char ex[4 + 255 + 1 + 8];
+		struct extended_attribute *ea = (struct extended_attribute *)ex;
+		if (pos + 4 > len) {
+			hpfs_error(s, "EAs don't end correctly, %s %08x, len %08x",
+				ano ? "anode" : "sectors", a, len);
+			return;
+		}
+		if (hpfs_ea_read(s, a, ano, pos, 4, ex)) return;
+		if (ea->indirect) {
+			if (ea->valuelen != 8) {
+				hpfs_error(s, "ea->indirect set while ea->valuelen!=8, %s %08x, pos %08x",
+					ano ? "anode" : "sectors", a, pos);
+				return;
+			}
+			if (hpfs_ea_read(s, a, ano, pos + 4, ea->namelen + 9, ex+4))
+				return;
+			hpfs_ea_remove(s, ea_sec(ea), ea->anode, ea_len(ea));
+		}
+		pos += ea->namelen + ea->valuelen + 5;
+	}
+	if (!ano) hpfs_free_sectors(s, a, (len+511) >> 9);
+	else {
+		struct buffer_head *bh;
+		struct anode *anode;
+		if ((anode = hpfs_map_anode(s, a, &bh))) {
+			hpfs_remove_btree(s, &anode->btree);
+			brelse(bh);
+			hpfs_free_sectors(s, a, 1);
+		}
+	}
+}
+
+static char *get_indirect_ea(struct super_block *s, int ano, secno a, int size)
+{
+	char *ret;
+	if (!(ret = kmalloc(size + 1, GFP_KERNEL))) {
+		printk("HPFS: out of memory for EA\n");
+		return NULL;
+	}
+	if (hpfs_ea_read(s, a, ano, 0, size, ret)) {
+		kfree(ret);
+		return NULL;
+	}
+	ret[size] = 0;
+	return ret;
+}
+
+static void set_indirect_ea(struct super_block *s, int ano, secno a, char *data,
+			    int size)
+{
+	hpfs_ea_write(s, a, ano, 0, size, data);
+}
+
+/* Read an extended attribute named 'key' into the provided buffer */
+
+int hpfs_read_ea(struct super_block *s, struct fnode *fnode, char *key,
+		char *buf, int size)
+{
+	unsigned pos;
+	int ano, len;
+	secno a;
+	struct extended_attribute *ea;
+	struct extended_attribute *ea_end = fnode_end_ea(fnode);
+	for (ea = fnode_ea(fnode); ea < ea_end; ea = next_ea(ea))
+		if (!strcmp(ea->name, key)) {
+			if (ea->indirect)
+				goto indirect;
+			if (ea->valuelen >= size)
+				return -EINVAL;
+			memcpy(buf, ea_data(ea), ea->valuelen);
+			buf[ea->valuelen] = 0;
+			return 0;
+		}
+	a = fnode->ea_secno;
+	len = fnode->ea_size_l;
+	ano = fnode->ea_anode;
+	pos = 0;
+	while (pos < len) {
+		char ex[4 + 255 + 1 + 8];
+		ea = (struct extended_attribute *)ex;
+		if (pos + 4 > len) {
+			hpfs_error(s, "EAs don't end correctly, %s %08x, len %08x",
+				ano ? "anode" : "sectors", a, len);
+			return -EIO;
+		}
+		if (hpfs_ea_read(s, a, ano, pos, 4, ex)) return -EIO;
+		if (hpfs_ea_read(s, a, ano, pos + 4, ea->namelen + 1 + (ea->indirect ? 8 : 0), ex + 4))
+			return -EIO;
+		if (!strcmp(ea->name, key)) {
+			if (ea->indirect)
+				goto indirect;
+			if (ea->valuelen >= size)
+				return -EINVAL;
+			if (hpfs_ea_read(s, a, ano, pos + 4 + ea->namelen + 1, ea->valuelen, buf))
+				return -EIO;
+			buf[ea->valuelen] = 0;
+			return 0;
+		}
+		pos += ea->namelen + ea->valuelen + 5;
+	}
+	return -ENOENT;
+indirect:
+	if (ea_len(ea) >= size)
+		return -EINVAL;
+	if (hpfs_ea_read(s, ea_sec(ea), ea->anode, 0, ea_len(ea), buf))
+		return -EIO;
+	buf[ea_len(ea)] = 0;
+	return 0;
+}
+
+/* Read an extended attribute named 'key' */
+char *hpfs_get_ea(struct super_block *s, struct fnode *fnode, char *key, int *size)
+{
+	char *ret;
+	unsigned pos;
+	int ano, len;
+	secno a;
+	struct extended_attribute *ea;
+	struct extended_attribute *ea_end = fnode_end_ea(fnode);
+	for (ea = fnode_ea(fnode); ea < ea_end; ea = next_ea(ea))
+		if (!strcmp(ea->name, key)) {
+			if (ea->indirect)
+				return get_indirect_ea(s, ea->anode, ea_sec(ea), *size = ea_len(ea));
+			if (!(ret = kmalloc((*size = ea->valuelen) + 1, GFP_KERNEL))) {
+				printk("HPFS: out of memory for EA\n");
+				return NULL;
+			}
+			memcpy(ret, ea_data(ea), ea->valuelen);
+			ret[ea->valuelen] = 0;
+			return ret;
+		}
+	a = fnode->ea_secno;
+	len = fnode->ea_size_l;
+	ano = fnode->ea_anode;
+	pos = 0;
+	while (pos < len) {
+		char ex[4 + 255 + 1 + 8];
+		ea = (struct extended_attribute *)ex;
+		if (pos + 4 > len) {
+			hpfs_error(s, "EAs don't end correctly, %s %08x, len %08x",
+				ano ? "anode" : "sectors", a, len);
+			return NULL;
+		}
+		if (hpfs_ea_read(s, a, ano, pos, 4, ex)) return NULL;
+		if (hpfs_ea_read(s, a, ano, pos + 4, ea->namelen + 1 + (ea->indirect ? 8 : 0), ex + 4))
+			return NULL;
+		if (!strcmp(ea->name, key)) {
+			if (ea->indirect)
+				return get_indirect_ea(s, ea->anode, ea_sec(ea), *size = ea_len(ea));
+			if (!(ret = kmalloc((*size = ea->valuelen) + 1, GFP_KERNEL))) {
+				printk("HPFS: out of memory for EA\n");
+				return NULL;
+			}
+			if (hpfs_ea_read(s, a, ano, pos + 4 + ea->namelen + 1, ea->valuelen, ret)) {
+				kfree(ret);
+				return NULL;
+			}
+			ret[ea->valuelen] = 0;
+			return ret;
+		}
+		pos += ea->namelen + ea->valuelen + 5;
+	}
+	return NULL;
+}
+
+/* 
+ * Update or create extended attribute 'key' with value 'data'. Note that
+ * when this ea exists, it MUST have the same size as size of data.
+ * This driver can't change sizes of eas ('cause I just don't need it).
+ */
+
+void hpfs_set_ea(struct inode *inode, struct fnode *fnode, char *key, char *data, int size)
+{
+	fnode_secno fno = inode->i_ino;
+	struct super_block *s = inode->i_sb;
+	unsigned pos;
+	int ano, len;
+	secno a;
+	unsigned char h[4];
+	struct extended_attribute *ea;
+	struct extended_attribute *ea_end = fnode_end_ea(fnode);
+	for (ea = fnode_ea(fnode); ea < ea_end; ea = next_ea(ea))
+		if (!strcmp(ea->name, key)) {
+			if (ea->indirect) {
+				if (ea_len(ea) == size)
+					set_indirect_ea(s, ea->anode, ea_sec(ea), data, size);
+			} else if (ea->valuelen == size) {
+				memcpy(ea_data(ea), data, size);
+			}
+			return;
+		}
+	a = fnode->ea_secno;
+	len = fnode->ea_size_l;
+	ano = fnode->ea_anode;
+	pos = 0;
+	while (pos < len) {
+		char ex[4 + 255 + 1 + 8];
+		ea = (struct extended_attribute *)ex;
+		if (pos + 4 > len) {
+			hpfs_error(s, "EAs don't end correctly, %s %08x, len %08x",
+				ano ? "anode" : "sectors", a, len);
+			return;
+		}
+		if (hpfs_ea_read(s, a, ano, pos, 4, ex)) return;
+		if (hpfs_ea_read(s, a, ano, pos + 4, ea->namelen + 1 + (ea->indirect ? 8 : 0), ex + 4))
+			return;
+		if (!strcmp(ea->name, key)) {
+			if (ea->indirect) {
+				if (ea_len(ea) == size)
+					set_indirect_ea(s, ea->anode, ea_sec(ea), data, size);
+			}
+			else {
+				if (ea->valuelen == size)
+					hpfs_ea_write(s, a, ano, pos + 4 + ea->namelen + 1, size, data);
+			}
+			return;
+		}
+		pos += ea->namelen + ea->valuelen + 5;
+	}
+	if (!fnode->ea_offs) {
+		/*if (fnode->ea_size_s) {
+			hpfs_error(s, "fnode %08x: ea_size_s == %03x, ea_offs == 0",
+				inode->i_ino, fnode->ea_size_s);
+			return;
+		}*/
+		fnode->ea_offs = 0xc4;
+	}
+	if (fnode->ea_offs < 0xc4 || fnode->ea_offs + fnode->acl_size_s + fnode->ea_size_s > 0x200) {
+		hpfs_error(s, "fnode %08x: ea_offs == %03x, ea_size_s == %03x",
+			inode->i_ino, fnode->ea_offs, fnode->ea_size_s);
+		return;
+	}
+	if ((fnode->ea_size_s || !fnode->ea_size_l) &&
+	     fnode->ea_offs + fnode->acl_size_s + fnode->ea_size_s + strlen(key) + size + 5 <= 0x200) {
+		ea = fnode_end_ea(fnode);
+		*(char *)ea = 0;
+		ea->namelen = strlen(key);
+		ea->valuelen = size;
+		strcpy(ea->name, key);
+		memcpy(ea_data(ea), data, size);
+		fnode->ea_size_s += strlen(key) + size + 5;
+		goto ret;
+	}
+	/* Most the code here is 99.9993422% unused. I hope there are no bugs.
+	   But what .. HPFS.IFS has also bugs in ea management. */
+	if (fnode->ea_size_s && !fnode->ea_size_l) {
+		secno n;
+		struct buffer_head *bh;
+		char *data;
+		if (!(n = hpfs_alloc_sector(s, fno, 1, 0, 1))) return;
+		if (!(data = hpfs_get_sector(s, n, &bh))) {
+			hpfs_free_sectors(s, n, 1);
+			return;
+		}
+		memcpy(data, fnode_ea(fnode), fnode->ea_size_s);
+		fnode->ea_size_l = fnode->ea_size_s;
+		fnode->ea_size_s = 0;
+		fnode->ea_secno = n;
+		fnode->ea_anode = 0;
+		mark_buffer_dirty(bh);
+		brelse(bh);
+	}
+	pos = fnode->ea_size_l + 5 + strlen(key) + size;
+	len = (fnode->ea_size_l + 511) >> 9;
+	if (pos >= 30000) goto bail;
+	while (((pos + 511) >> 9) > len) {
+		if (!len) {
+			if (!(fnode->ea_secno = hpfs_alloc_sector(s, fno, 1, 0, 1)))
+				goto bail;
+			fnode->ea_anode = 0;
+			len++;
+		} else if (!fnode->ea_anode) {
+			if (hpfs_alloc_if_possible(s, fnode->ea_secno + len)) {
+				len++;
+			} else {
+				/* Aargh... don't know how to create ea anodes :-( */
+				/*struct buffer_head *bh;
+				struct anode *anode;
+				anode_secno a_s;
+				if (!(anode = hpfs_alloc_anode(s, fno, &a_s, &bh)))
+					goto bail;
+				anode->up = fno;
+				anode->btree.fnode_parent = 1;
+				anode->btree.n_free_nodes--;
+				anode->btree.n_used_nodes++;
+				anode->btree.first_free += 12;
+				anode->u.external[0].disk_secno = fnode->ea_secno;
+				anode->u.external[0].file_secno = 0;
+				anode->u.external[0].length = len;
+				mark_buffer_dirty(bh);
+				brelse(bh);
+				fnode->ea_anode = 1;
+				fnode->ea_secno = a_s;*/
+				secno new_sec;
+				int i;
+				if (!(new_sec = hpfs_alloc_sector(s, fno, 1, 1 - ((pos + 511) >> 9), 1)))
+					goto bail;
+				for (i = 0; i < len; i++) {
+					struct buffer_head *bh1, *bh2;
+					void *b1, *b2;
+					if (!(b1 = hpfs_map_sector(s, fnode->ea_secno + i, &bh1, len - i - 1))) {
+						hpfs_free_sectors(s, new_sec, (pos + 511) >> 9);
+						goto bail;
+					}
+					if (!(b2 = hpfs_get_sector(s, new_sec + i, &bh2))) {
+						brelse(bh1);
+						hpfs_free_sectors(s, new_sec, (pos + 511) >> 9);
+						goto bail;
+					}
+					memcpy(b2, b1, 512);
+					brelse(bh1);
+					mark_buffer_dirty(bh2);
+					brelse(bh2);
+				}
+				hpfs_free_sectors(s, fnode->ea_secno, len);
+				fnode->ea_secno = new_sec;
+				len = (pos + 511) >> 9;
+			}
+		}
+		if (fnode->ea_anode) {
+			if (hpfs_add_sector_to_btree(s, fnode->ea_secno,
+						     0, len) != -1) {
+				len++;
+			} else {
+				goto bail;
+			}
+		}
+	}
+	h[0] = 0;
+	h[1] = strlen(key);
+	h[2] = size & 0xff;
+	h[3] = size >> 8;
+	if (hpfs_ea_write(s, fnode->ea_secno, fnode->ea_anode, fnode->ea_size_l, 4, h)) goto bail;
+	if (hpfs_ea_write(s, fnode->ea_secno, fnode->ea_anode, fnode->ea_size_l + 4, h[1] + 1, key)) goto bail;
+	if (hpfs_ea_write(s, fnode->ea_secno, fnode->ea_anode, fnode->ea_size_l + 5 + h[1], size, data)) goto bail;
+	fnode->ea_size_l = pos;
+	ret:
+	inode->i_hpfs_ea_size += 5 + strlen(key) + size;
+	return;
+	bail:
+	if (fnode->ea_secno)
+		if (fnode->ea_anode) hpfs_truncate_btree(s, fnode->ea_secno, 1, (fnode->ea_size_l + 511) >> 9);
+		else hpfs_free_sectors(s, fnode->ea_secno + ((fnode->ea_size_l + 511) >> 9), len - ((fnode->ea_size_l + 511) >> 9));
+	else fnode->ea_secno = fnode->ea_size_l = 0;
+}
+	
diff --git a/fs/hpfs/file.c b/fs/hpfs/file.c
new file mode 100644
index 00000000000000..cefb5b32697704
--- /dev/null
+++ b/fs/hpfs/file.c
@@ -0,0 +1,136 @@
+/*
+ *  linux/fs/hpfs/file.c
+ *
+ *  Mikulas Patocka (mikulas@artax.karlin.mff.cuni.cz), 1998-1999
+ *
+ *  file VFS functions
+ */
+
+#include <linux/string.h>
+#include <linux/sched.h>
+#include <linux/smp_lock.h>
+#include "hpfs_fn.h"
+
+#define BLOCKS(size) (((size) + 511) >> 9)
+
+/* HUH? */
+int hpfs_open(struct inode *i, struct file *f)
+{
+	lock_kernel();
+	hpfs_lock_inode(i);
+	hpfs_unlock_inode(i); /* make sure nobody is deleting the file */
+	unlock_kernel();
+	if (!i->i_nlink) return -ENOENT;
+	return 0;
+}
+
+int hpfs_file_release(struct inode *inode, struct file *file)
+{
+	lock_kernel();
+	hpfs_write_if_changed(inode);
+	unlock_kernel();
+	return 0;
+}
+
+int hpfs_file_fsync(struct file *file, struct dentry *dentry, int datasync)
+{
+	/*return file_fsync(file, dentry);*/
+	return 0; /* Don't fsync :-) */
+}
+
+/*
+ * generic_file_read often calls bmap with non-existing sector,
+ * so we must ignore such errors.
+ */
+
+secno hpfs_bmap(struct inode *inode, unsigned file_secno)
+{
+	unsigned n, disk_secno;
+	struct fnode *fnode;
+	struct buffer_head *bh;
+	if (BLOCKS(inode->u.hpfs_i.mmu_private) <= file_secno) return 0;
+	n = file_secno - inode->i_hpfs_file_sec;
+	if (n < inode->i_hpfs_n_secs) return inode->i_hpfs_disk_sec + n;
+	if (!(fnode = hpfs_map_fnode(inode->i_sb, inode->i_ino, &bh))) return 0;
+	disk_secno = hpfs_bplus_lookup(inode->i_sb, inode, &fnode->btree, file_secno, bh);
+	if (disk_secno == -1) return 0;
+	if (hpfs_chk_sectors(inode->i_sb, disk_secno, 1, "bmap")) return 0;
+	return disk_secno;
+}
+
+void hpfs_truncate(struct inode *i)
+{
+	if (IS_IMMUTABLE(i)) return /*-EPERM*/;
+	i->i_hpfs_n_secs = 0;
+	i->i_blocks = 1 + ((i->i_size + 511) >> 9);
+	i->u.hpfs_i.mmu_private = i->i_size;
+	hpfs_truncate_btree(i->i_sb, i->i_ino, 1, ((i->i_size + 511) >> 9));
+	hpfs_write_inode(i);
+}
+
+int hpfs_get_block(struct inode *inode, long iblock, struct buffer_head *bh_result, int create)
+{
+	secno s;
+	s = hpfs_bmap(inode, iblock);
+	if (s) {
+		bh_result->b_dev = inode->i_dev;
+		bh_result->b_blocknr = s;
+		bh_result->b_state |= (1UL << BH_Mapped);
+		return 0;
+	}
+	if (!create) return 0;
+	if (iblock<<9 != inode->u.hpfs_i.mmu_private) {
+		BUG();
+		return -EIO;
+	}
+	if ((s = hpfs_add_sector_to_btree(inode->i_sb, inode->i_ino, 1, inode->i_blocks - 1)) == -1) {
+		hpfs_truncate_btree(inode->i_sb, inode->i_ino, 1, inode->i_blocks - 1);
+		return -ENOSPC;
+	}
+	inode->i_blocks++;
+	inode->u.hpfs_i.mmu_private += 512;
+	bh_result->b_dev = inode->i_dev;
+	bh_result->b_blocknr = s;
+	bh_result->b_state |= (1UL << BH_Mapped) | (1UL << BH_New);
+	return 0;
+}
+
+static int hpfs_writepage(struct page *page)
+{
+	return block_write_full_page(page,hpfs_get_block);
+}
+static int hpfs_readpage(struct file *file, struct page *page)
+{
+	return block_read_full_page(page,hpfs_get_block);
+}
+static int hpfs_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)
+{
+	return cont_prepare_write(page,from,to,hpfs_get_block,
+		&page->mapping->host->u.hpfs_i.mmu_private);
+}
+static int _hpfs_bmap(struct address_space *mapping, long block)
+{
+	return generic_block_bmap(mapping,block,hpfs_get_block);
+}
+struct address_space_operations hpfs_aops = {
+	readpage: hpfs_readpage,
+	writepage: hpfs_writepage,
+	sync_page: block_sync_page,
+	prepare_write: hpfs_prepare_write,
+	commit_write: generic_commit_write,
+	bmap: _hpfs_bmap
+};
+
+ssize_t hpfs_file_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
+{
+	ssize_t retval;
+
+	retval = generic_file_write(file, buf, count, ppos);
+	if (retval > 0) {
+		struct inode *inode = file->f_dentry->d_inode;
+		inode->i_mtime = CURRENT_TIME;
+		inode->i_hpfs_dirty = 1;
+	}
+	return retval;
+}
+
diff --git a/fs/hpfs/hpfs.h b/fs/hpfs/hpfs.h
new file mode 100644
index 00000000000000..6364fd9d19d1c5
--- /dev/null
+++ b/fs/hpfs/hpfs.h
@@ -0,0 +1,493 @@
+/*
+ *  linux/fs/hpfs/hpfs.h
+ *
+ *  HPFS structures by Chris Smith, 1993
+ *
+ *  a little bit modified by Mikulas Patocka, 1998-1999
+ */
+
+/* The paper
+
+     Duncan, Roy
+     Design goals and implementation of the new High Performance File System
+     Microsoft Systems Journal  Sept 1989  v4 n5 p1(13)
+
+   describes what HPFS looked like when it was new, and it is the source
+   of most of the information given here.  The rest is conjecture.
+
+   For definitive information on the Duncan paper, see it, not this file.
+   For definitive information on HPFS, ask somebody else -- this is guesswork.
+   There are certain to be many mistakes. */
+
+/* Notation */
+
+typedef unsigned secno;			/* sector number, partition relative */
+
+typedef secno dnode_secno;		/* sector number of a dnode */
+typedef secno fnode_secno;		/* sector number of an fnode */
+typedef secno anode_secno;		/* sector number of an anode */
+
+typedef unsigned time32_t;		/* 32-bit time_t type */
+
+/* sector 0 */
+
+/* The boot block is very like a FAT boot block, except that the
+   29h signature byte is 28h instead, and the ID string is "HPFS". */
+
+#define BB_MAGIC 0xaa55
+
+struct hpfs_boot_block
+{
+  unsigned char jmp[3];
+  unsigned char oem_id[8];
+  unsigned char bytes_per_sector[2];	/* 512 */
+  unsigned char sectors_per_cluster;
+  unsigned char n_reserved_sectors[2];
+  unsigned char n_fats;
+  unsigned char n_rootdir_entries[2];
+  unsigned char n_sectors_s[2];
+  unsigned char media_byte;
+  unsigned short sectors_per_fat;
+  unsigned short sectors_per_track;
+  unsigned short heads_per_cyl;
+  unsigned int n_hidden_sectors;
+  unsigned int n_sectors_l;		/* size of partition */
+  unsigned char drive_number;
+  unsigned char mbz;
+  unsigned char sig_28h;		/* 28h */
+  unsigned char vol_serno[4];
+  unsigned char vol_label[11];
+  unsigned char sig_hpfs[8];		/* "HPFS    " */
+  unsigned char pad[448];
+  unsigned short magic;			/* aa55 */
+};
+
+
+/* sector 16 */
+
+/* The super block has the pointer to the root directory. */
+
+#define SB_MAGIC 0xf995e849
+
+struct hpfs_super_block
+{
+  unsigned magic;			/* f995 e849 */
+  unsigned magic1;			/* fa53 e9c5, more magic? */
+  /*unsigned huh202;*/			/* ?? 202 = N. of B. in 1.00390625 S.*/
+  char version;				/* version of a filesystem  usually 2 */
+  char funcversion;			/* functional version - oldest version
+  					   of filesystem that can understand
+					   this disk */
+  unsigned short int zero;		/* 0 */
+  fnode_secno root;			/* fnode of root directory */
+  secno n_sectors;			/* size of filesystem */
+  unsigned n_badblocks;			/* number of bad blocks */
+  secno bitmaps;			/* pointers to free space bit maps */
+  unsigned zero1;			/* 0 */
+  secno badblocks;			/* bad block list */
+  unsigned zero3;			/* 0 */
+  time32_t last_chkdsk;			/* date last checked, 0 if never */
+  /*unsigned zero4;*/			/* 0 */
+  time32_t last_optimize;			/* date last optimized, 0 if never */
+  secno n_dir_band;			/* number of sectors in dir band */
+  secno dir_band_start;			/* first sector in dir band */
+  secno dir_band_end;			/* last sector in dir band */
+  secno dir_band_bitmap;		/* free space map, 1 dnode per bit */
+  char volume_name[32];			/* not used */
+  secno user_id_table;			/* 8 preallocated sectors - user id */
+  unsigned zero6[103];			/* 0 */
+};
+
+
+/* sector 17 */
+
+/* The spare block has pointers to spare sectors.  */
+
+#define SP_MAGIC 0xf9911849
+
+struct hpfs_spare_block
+{
+  unsigned magic;			/* f991 1849 */
+  unsigned magic1;			/* fa52 29c5, more magic? */
+
+  unsigned dirty: 1;			/* 0 clean, 1 "improperly stopped" */
+  /*unsigned flag1234: 4;*/		/* unknown flags */
+  unsigned sparedir_used: 1;		/* spare dirblks used */
+  unsigned hotfixes_used: 1;		/* hotfixes used */
+  unsigned bad_sector: 1;		/* bad sector, corrupted disk (???) */
+  unsigned bad_bitmap: 1;		/* bad bitmap */
+  unsigned fast: 1;			/* partition was fast formatted */
+  unsigned old_wrote: 1;		/* old version wrote to partion */
+  unsigned old_wrote_1: 1;		/* old version wrote to partion (?) */
+  unsigned install_dasd_limits: 1;	/* HPFS386 flags */
+  unsigned resynch_dasd_limits: 1;
+  unsigned dasd_limits_operational: 1;
+  unsigned multimedia_active: 1;
+  unsigned dce_acls_active: 1;
+  unsigned dasd_limits_dirty: 1;
+  unsigned flag67: 2;
+  unsigned char mm_contlgulty;
+  unsigned char unused;
+
+  secno hotfix_map;			/* info about remapped bad sectors */
+  unsigned n_spares_used;		/* number of hotfixes */
+  unsigned n_spares;			/* number of spares in hotfix map */
+  unsigned n_dnode_spares_free;		/* spare dnodes unused */
+  unsigned n_dnode_spares;		/* length of spare_dnodes[] list,
+					   follows in this block*/
+  secno code_page_dir;			/* code page directory block */
+  unsigned n_code_pages;		/* number of code pages */
+  /*unsigned large_numbers[2];*/	/* ?? */
+  unsigned super_crc;			/* on HPFS386 and LAN Server this is
+  					   checksum of superblock, on normal
+					   OS/2 unused */
+  unsigned spare_crc;			/* on HPFS386 checksum of spareblock */
+  unsigned zero1[15];			/* unused */
+  dnode_secno spare_dnodes[100];	/* emergency free dnode list */
+  unsigned zero2[1];			/* room for more? */
+};
+
+/* The bad block list is 4 sectors long.  The first word must be zero,
+   the remaining words give n_badblocks bad block numbers.
+   I bet you can see it coming... */
+
+#define BAD_MAGIC 0
+       
+/* The hotfix map is 4 sectors long.  It looks like
+
+       secno from[n_spares];
+       secno to[n_spares];
+
+   The to[] list is initialized to point to n_spares preallocated empty
+   sectors.  The from[] list contains the sector numbers of bad blocks
+   which have been remapped to corresponding sectors in the to[] list.
+   n_spares_used gives the length of the from[] list. */
+
+
+/* Sectors 18 and 19 are preallocated and unused.
+   Maybe they're spares for 16 and 17, but simple substitution fails. */
+
+
+/* The code page info pointed to by the spare block consists of an index
+   block and blocks containing uppercasing tables.  I don't know what
+   these are for (CHKDSK, maybe?) -- OS/2 does not seem to use them
+   itself.  Linux doesn't use them either. */
+
+/* block pointed to by spareblock->code_page_dir */
+
+#define CP_DIR_MAGIC 0x494521f7
+
+struct code_page_directory
+{
+  unsigned magic;			/* 4945 21f7 */
+  unsigned n_code_pages;		/* number of pointers following */
+  unsigned zero1[2];
+  struct {
+    unsigned short ix;			/* index */
+    unsigned short code_page_number;	/* code page number */
+    unsigned bounds;			/* matches corresponding word
+					   in data block */
+    secno code_page_data;		/* sector number of a code_page_data
+					   containing c.p. array */
+    unsigned short index;		/* index in c.p. array in that sector*/
+    unsigned short unknown;		/* some unknown value; usually 0;
+    					   2 in Japanese version */
+  } array[31];				/* unknown length */
+};
+
+/* blocks pointed to by code_page_directory */
+
+#define CP_DATA_MAGIC 0x894521f7
+
+struct code_page_data
+{
+  unsigned magic;			/* 8945 21f7 */
+  unsigned n_used;			/* # elements used in c_p_data[] */
+  unsigned bounds[3];			/* looks a bit like
+					     (beg1,end1), (beg2,end2)
+					   one byte each */
+  unsigned short offs[3];		/* offsets from start of sector
+					   to start of c_p_data[ix] */
+  struct {
+    unsigned short ix;			/* index */
+    unsigned short code_page_number;	/* code page number */
+    unsigned short unknown;		/* the same as in cp directory */
+    unsigned char map[128];		/* upcase table for chars 80..ff */
+    unsigned short zero2;
+  } code_page[3];
+  unsigned char incognita[78];
+};
+
+
+/* Free space bitmaps are 4 sectors long, which is 16384 bits.
+   16384 sectors is 8 meg, and each 8 meg band has a 4-sector bitmap.
+   Bit order in the maps is little-endian.  0 means taken, 1 means free.
+
+   Bit map sectors are marked allocated in the bit maps, and so are sectors 
+   off the end of the partition.
+
+   Band 0 is sectors 0-3fff, its map is in sectors 18-1b.
+   Band 1 is 4000-7fff, its map is in 7ffc-7fff.
+   Band 2 is 8000-ffff, its map is in 8000-8003.
+   The remaining bands have maps in their first (even) or last (odd) 4 sectors
+     -- if the last, partial, band is odd its map is in its last 4 sectors.
+
+   The bitmap locations are given in a table pointed to by the super block.
+   No doubt they aren't constrained to be at 18, 7ffc, 8000, ...; that is
+   just where they usually are.
+
+   The "directory band" is a bunch of sectors preallocated for dnodes.
+   It has a 4-sector free space bitmap of its own.  Each bit in the map
+   corresponds to one 4-sector dnode, bit 0 of the map corresponding to
+   the first 4 sectors of the directory band.  The entire band is marked
+   allocated in the main bitmap.   The super block gives the locations
+   of the directory band and its bitmap.  ("band" doesn't mean it is
+   8 meg long; it isn't.)  */
+
+
+/* dnode: directory.  4 sectors long */
+
+/* A directory is a tree of dnodes.  The fnode for a directory
+   contains one pointer, to the root dnode of the tree.  The fnode
+   never moves, the dnodes do the B-tree thing, splitting and merging
+   as files are added and removed.  */
+
+#define DNODE_MAGIC   0x77e40aae
+
+struct dnode {
+  unsigned magic;			/* 77e4 0aae */
+  unsigned first_free;			/* offset from start of dnode to
+					   first free dir entry */
+  unsigned root_dnode:1;		/* Is it root dnode? */
+  unsigned increment_me:31;		/* some kind of activity counter?
+					   Neither HPFS.IFS nor CHKDSK cares
+					   if you change this word */
+  secno up;				/* (root dnode) directory's fnode
+					   (nonroot) parent dnode */
+  dnode_secno self;			/* pointer to this dnode */
+  unsigned char dirent[2028];		/* one or more dirents */
+};
+
+struct hpfs_dirent {
+  unsigned short length;		/* offset to next dirent */
+  unsigned first: 1;			/* set on phony ^A^A (".") entry */
+  unsigned has_acl: 1;
+  unsigned down: 1;			/* down pointer present (after name) */
+  unsigned last: 1;			/* set on phony \377 entry */
+  unsigned has_ea: 1;			/* entry has EA */
+  unsigned has_xtd_perm: 1;		/* has extended perm list (???) */
+  unsigned has_explicit_acl: 1;
+  unsigned has_needea: 1;		/* ?? some EA has NEEDEA set
+					   I have no idea why this is
+					   interesting in a dir entry */
+  unsigned read_only: 1;		/* dos attrib */
+  unsigned hidden: 1;			/* dos attrib */
+  unsigned system: 1;			/* dos attrib */
+  unsigned flag11: 1;			/* would be volume label dos attrib */
+  unsigned directory: 1;		/* dos attrib */
+  unsigned archive: 1;			/* dos attrib */
+  unsigned not_8x3: 1;			/* name is not 8.3 */
+  unsigned flag15: 1;
+  fnode_secno fnode;			/* fnode giving allocation info */
+  time32_t write_date;			/* mtime */
+  unsigned file_size;			/* file length, bytes */
+  time32_t read_date;			/* atime */
+  time32_t creation_date;			/* ctime */
+  unsigned ea_size;			/* total EA length, bytes */
+  unsigned char no_of_acls : 3;		/* number of ACL's */
+  unsigned char reserver : 5;
+  unsigned char ix;			/* code page index (of filename), see
+					   struct code_page_data */
+  unsigned char namelen, name[1];	/* file name */
+  /* dnode_secno down;	  btree down pointer, if present,
+     			  follows name on next word boundary, or maybe it
+			  precedes next dirent, which is on a word boundary. */
+};
+
+
+/* B+ tree: allocation info in fnodes and anodes */
+
+/* dnodes point to fnodes which are responsible for listing the sectors
+   assigned to the file.  This is done with trees of (length,address)
+   pairs.  (Actually triples, of (length, file-address, disk-address)
+   which can represent holes.  Find out if HPFS does that.)
+   At any rate, fnodes contain a small tree; if subtrees are needed
+   they occupy essentially a full block in anodes.  A leaf-level tree node
+   has 3-word entries giving sector runs, a non-leaf node has 2-word
+   entries giving subtree pointers.  A flag in the header says which. */
+
+struct bplus_leaf_node
+{
+  unsigned file_secno;			/* first file sector in extent */
+  unsigned length;			/* length, sectors */
+  secno disk_secno;			/* first corresponding disk sector */
+};
+
+struct bplus_internal_node
+{
+  unsigned file_secno;			/* subtree maps sectors < this  */
+  anode_secno down;			/* pointer to subtree */
+};
+
+struct bplus_header
+{
+  unsigned hbff: 1;	/* high bit of first free entry offset */
+  unsigned flag1: 1;
+  unsigned flag2: 1;
+  unsigned flag3: 1;
+  unsigned flag4: 1;
+  unsigned fnode_parent: 1;		/* ? we're pointed to by an fnode,
+					   the data btree or some ea or the
+					   main ea bootage pointer ea_secno */
+					/* also can get set in fnodes, which
+					   may be a chkdsk glitch or may mean
+					   this bit is irrelevant in fnodes,
+					   or this interpretation is all wet */
+  unsigned binary_search: 1;		/* suggest binary search (unused) */
+  unsigned internal: 1;			/* 1 -> (internal) tree of anodes
+					   0 -> (leaf) list of extents */
+  unsigned char fill[3];
+  unsigned char n_free_nodes;		/* free nodes in following array */
+  unsigned char n_used_nodes;		/* used nodes in following array */
+  unsigned short first_free;		/* offset from start of header to
+					   first free node in array */
+  union {
+    struct bplus_internal_node internal[0]; /* (internal) 2-word entries giving
+					       subtree pointers */
+    struct bplus_leaf_node external[0];	    /* (external) 3-word entries giving
+					       sector runs */
+  } u;
+};
+
+/* fnode: root of allocation b+ tree, and EA's */
+
+/* Every file and every directory has one fnode, pointed to by the directory
+   entry and pointing to the file's sectors or directory's root dnode.  EA's
+   are also stored here, and there are said to be ACL's somewhere here too. */
+
+#define FNODE_MAGIC 0xf7e40aae
+
+struct fnode
+{
+  unsigned magic;			/* f7e4 0aae */
+  unsigned zero1[2];			/* read history */
+  unsigned char len, name[15];		/* true length, truncated name */
+  fnode_secno up;			/* pointer to file's directory fnode */
+  /*unsigned zero2[3];*/
+  secno acl_size_l;
+  secno acl_secno;
+  unsigned short acl_size_s;
+  char acl_anode;
+  char zero2;				/* history bit count */
+  unsigned ea_size_l;			/* length of disk-resident ea's */
+  secno ea_secno;			/* first sector of disk-resident ea's*/
+  unsigned short ea_size_s;		/* length of fnode-resident ea's */
+
+  unsigned flag0: 1;
+  unsigned ea_anode: 1;			/* 1 -> ea_secno is an anode */
+  unsigned flag2: 1;
+  unsigned flag3: 1;
+  unsigned flag4: 1;
+  unsigned flag5: 1;
+  unsigned flag6: 1;
+  unsigned flag7: 1;
+  unsigned dirflag: 1;			/* 1 -> directory.  first & only extent
+					   points to dnode. */
+  unsigned flag9: 1;
+  unsigned flag10: 1;
+  unsigned flag11: 1;
+  unsigned flag12: 1;
+  unsigned flag13: 1;
+  unsigned flag14: 1;
+  unsigned flag15: 1;
+
+  struct bplus_header btree;		/* b+ tree, 8 extents or 12 subtrees */
+  union {
+    struct bplus_leaf_node external[8];
+    struct bplus_internal_node internal[12];
+  } u;
+
+  unsigned file_size;			/* file length, bytes */
+  unsigned n_needea;			/* number of EA's with NEEDEA set */
+  char user_id[16];			/* unused */
+  unsigned short ea_offs;		/* offset from start of fnode
+					   to first fnode-resident ea */
+  char dasd_limit_treshhold;
+  char dasd_limit_delta;
+  unsigned dasd_limit;
+  unsigned dasd_usage;
+  /*unsigned zero5[2];*/
+  unsigned char ea[316];		/* zero or more EA's, packed together
+					   with no alignment padding.
+					   (Do not use this name, get here
+					   via fnode + ea_offs. I think.) */
+};
+
+
+/* anode: 99.44% pure allocation tree */
+
+#define ANODE_MAGIC 0x37e40aae
+
+struct anode
+{
+  unsigned magic;			/* 37e4 0aae */
+  anode_secno self;			/* pointer to this anode */
+  secno up;				/* parent anode or fnode */
+
+  struct bplus_header btree;		/* b+tree, 40 extents or 60 subtrees */
+  union {
+    struct bplus_leaf_node external[40];
+    struct bplus_internal_node internal[60];
+  } u;
+
+  unsigned fill[3];			/* unused */
+};
+
+
+/* extended attributes.
+
+   A file's EA info is stored as a list of (name,value) pairs.  It is
+   usually in the fnode, but (if it's large) it is moved to a single
+   sector run outside the fnode, or to multiple runs with an anode tree
+   that points to them.
+
+   The value of a single EA is stored along with the name, or (if large)
+   it is moved to a single sector run, or multiple runs pointed to by an
+   anode tree, pointed to by the value field of the (name,value) pair.
+
+   Flags in the EA tell whether the value is immediate, in a single sector
+   run, or in multiple runs.  Flags in the fnode tell whether the EA list
+   is immediate, in a single run, or in multiple runs. */
+
+struct extended_attribute
+{
+  unsigned indirect: 1;			/* 1 -> value gives sector number
+					   where real value starts */
+  unsigned anode: 1;			/* 1 -> sector is an anode
+					   that points to fragmented value */
+  unsigned flag2: 1;
+  unsigned flag3: 1;
+  unsigned flag4: 1;
+  unsigned flag5: 1;
+  unsigned flag6: 1;
+  unsigned needea: 1;			/* required ea */
+  unsigned char namelen;		/* length of name, bytes */
+  unsigned short valuelen;		/* length of value, bytes */
+  unsigned char name[0];
+  /*
+    unsigned char name[namelen];	ascii attrib name
+    unsigned char nul;			terminating '\0', not counted
+    unsigned char value[valuelen];	value, arbitrary
+      if this.indirect, valuelen is 8 and the value is
+        unsigned length;		real length of value, bytes
+        secno secno;			sector address where it starts
+      if this.anode, the above sector number is the root of an anode tree
+        which points to the value.
+  */
+};
+
+/*
+   Local Variables:
+   comment-column: 40
+   End:
+*/
diff --git a/fs/hpfs/hpfs_fn.h b/fs/hpfs/hpfs_fn.h
new file mode 100644
index 00000000000000..0ccae15e448a90
--- /dev/null
+++ b/fs/hpfs/hpfs_fn.h
@@ -0,0 +1,315 @@
+/*
+ *  linux/fs/hpfs/hpfs_fn.h
+ *
+ *  Mikulas Patocka (mikulas@artax.karlin.mff.cuni.cz), 1998-1999
+ *
+ *  function headers
+ */
+
+//#define DBG
+//#define DEBUG_LOCKS
+
+#include <linux/fs.h>
+#include <linux/hpfs_fs.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/locks.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <asm/bitops.h>
+#include <asm/segment.h>
+#include <asm/uaccess.h>
+#include <linux/smp_lock.h>
+
+#include <stdarg.h>
+
+#include "hpfs.h"
+
+#define EIOERROR  EIO
+#define EFSERROR  EPERM
+#define EMEMERROR ENOMEM
+
+#define ANODE_ALLOC_FWD	512
+#define FNODE_ALLOC_FWD	0
+#define ALLOC_FWD_MIN	16
+#define ALLOC_FWD_MAX	128
+#define ALLOC_M		1
+#define FNODE_RD_AHEAD	16
+#define ANODE_RD_AHEAD	16
+#define DNODE_RD_AHEAD	4
+
+#define FREE_DNODES_ADD	58
+#define FREE_DNODES_DEL	29
+
+#define CHKCOND(x,y) if (!(x)) printk y
+
+#ifdef DBG
+#define PRINTK(x) printk x
+#else
+#undef PRINTK
+#define PRINTK(x)
+#endif
+
+typedef void nonconst; /* What this is for ? */
+
+/*
+ * local time (HPFS) to GMT (Unix)
+ */
+
+extern inline time_t local_to_gmt(struct super_block *s, time32_t t)
+{
+	extern struct timezone sys_tz;
+	return t + sys_tz.tz_minuteswest * 60 + s->s_hpfs_timeshift;
+}
+
+extern inline time32_t gmt_to_local(struct super_block *s, time_t t)
+{
+	extern struct timezone sys_tz;
+	return t - sys_tz.tz_minuteswest * 60 - s->s_hpfs_timeshift;
+}
+
+/*
+ * conv= options
+ */
+
+#define CONV_BINARY 0			/* no conversion */
+#define CONV_TEXT 1			/* crlf->newline */
+#define CONV_AUTO 2			/* decide based on file contents */
+
+/* Four 512-byte buffers and the 2k block obtained by concatenating them */
+
+struct quad_buffer_head {
+	struct buffer_head *bh[4];
+	void *data;
+};
+
+/* The b-tree down pointer from a dir entry */
+
+extern inline dnode_secno de_down_pointer (struct hpfs_dirent *de)
+{
+  CHKCOND(de->down,("HPFS: de_down_pointer: !de->down\n"));
+  return *(dnode_secno *) ((void *) de + de->length - 4);
+}
+
+/* The first dir entry in a dnode */
+
+extern inline struct hpfs_dirent *dnode_first_de (struct dnode *dnode)
+{
+  return (void *) dnode->dirent;
+}
+
+/* The end+1 of the dir entries */
+
+extern inline struct hpfs_dirent *dnode_end_de (struct dnode *dnode)
+{
+  CHKCOND(dnode->first_free>=0x14 && dnode->first_free<=0xa00,("HPFS: dnode_end_de: dnode->first_free = %d\n",(int)dnode->first_free));
+  return (void *) dnode + dnode->first_free;
+}
+
+/* The dir entry after dir entry de */
+
+extern inline struct hpfs_dirent *de_next_de (struct hpfs_dirent *de)
+{
+  CHKCOND(de->length>=0x20 && de->length<0x800,("HPFS: de_next_de: de->length = %d\n",(int)de->length));
+  return (void *) de + de->length;
+}
+
+extern inline struct extended_attribute *fnode_ea(struct fnode *fnode)
+{
+	return (struct extended_attribute *)((char *)fnode + fnode->ea_offs + fnode->acl_size_s);
+}
+
+extern inline struct extended_attribute *fnode_end_ea(struct fnode *fnode)
+{
+	return (struct extended_attribute *)((char *)fnode + fnode->ea_offs + fnode->acl_size_s + fnode->ea_size_s);
+}
+
+extern inline struct extended_attribute *next_ea(struct extended_attribute *ea)
+{
+	return (struct extended_attribute *)((char *)ea + 5 + ea->namelen + ea->valuelen);
+}
+
+extern inline secno ea_sec(struct extended_attribute *ea)
+{
+	return *(secno *)((char *)ea + 9 + ea->namelen);
+}
+
+extern inline secno ea_len(struct extended_attribute *ea)
+{
+	return *(secno *)((char *)ea + 5 + ea->namelen);
+}
+
+extern inline char *ea_data(struct extended_attribute *ea)
+{
+	return (char *)((char *)ea + 5 + ea->namelen);
+}
+
+extern inline unsigned de_size(int namelen, secno down_ptr)
+{
+	return ((0x1f + namelen + 3) & ~3) + (down_ptr ? 4 : 0);
+}
+
+extern inline void copy_de(struct hpfs_dirent *dst, struct hpfs_dirent *src)
+{
+	int a;
+	int n;
+	if (!dst || !src) return;
+	a = dst->down;
+	n = dst->not_8x3;
+	memcpy((char *)dst + 2, (char *)src + 2, 28);
+	dst->down = a;
+	dst->not_8x3 = n;
+}
+
+extern inline unsigned tstbits(unsigned *bmp, unsigned b, unsigned n)
+{
+	int i;
+	if ((b >= 0x4000) || (b + n - 1 >= 0x4000)) return n;
+	if (!((bmp[(b & 0x3fff) >> 5] >> (b & 0x1f)) & 1)) return 1;
+	for (i = 1; i < n; i++)
+		if (/*b+i < 0x4000 &&*/ !((bmp[((b+i) & 0x3fff) >> 5] >> ((b+i) & 0x1f)) & 1))
+			return i + 1;
+	return 0;
+}
+
+/* alloc.c */
+
+int hpfs_chk_sectors(struct super_block *, secno, int, char *);
+secno hpfs_alloc_sector(struct super_block *, secno, unsigned, int, int);
+int hpfs_alloc_if_possible_nolock(struct super_block *, secno);
+int hpfs_alloc_if_possible(struct super_block *, secno);
+void hpfs_free_sectors(struct super_block *, secno, unsigned);
+int hpfs_check_free_dnodes(struct super_block *, int);
+void hpfs_free_dnode(struct super_block *, secno);
+struct dnode *hpfs_alloc_dnode(struct super_block *, secno, dnode_secno *, struct quad_buffer_head *, int);
+struct fnode *hpfs_alloc_fnode(struct super_block *, secno, fnode_secno *, struct buffer_head **);
+struct anode *hpfs_alloc_anode(struct super_block *, secno, anode_secno *, struct buffer_head **);
+
+/* anode.c */
+
+secno hpfs_bplus_lookup(struct super_block *, struct inode *, struct bplus_header *, unsigned, struct buffer_head *);
+secno hpfs_add_sector_to_btree(struct super_block *, secno, int, unsigned);
+void hpfs_remove_btree(struct super_block *, struct bplus_header *);
+int hpfs_ea_read(struct super_block *, secno, int, unsigned, unsigned, char *);
+int hpfs_ea_write(struct super_block *, secno, int, unsigned, unsigned, char *);
+void hpfs_ea_remove(struct super_block *, secno, int, unsigned);
+void hpfs_truncate_btree(struct super_block *, secno, int, unsigned);
+void hpfs_remove_fnode(struct super_block *, fnode_secno fno);
+
+/* buffer.c */
+
+void hpfs_lock_creation(struct super_block *);
+void hpfs_unlock_creation(struct super_block *);
+void hpfs_lock_iget(struct super_block *, int);
+void hpfs_unlock_iget(struct super_block *);
+void hpfs_lock_inode(struct inode *);
+void hpfs_unlock_inode(struct inode *);
+void hpfs_lock_2inodes(struct inode *, struct inode *);
+void hpfs_unlock_2inodes(struct inode *, struct inode *);
+void hpfs_lock_3inodes(struct inode *, struct inode *, struct inode *);
+void hpfs_unlock_3inodes(struct inode *, struct inode *, struct inode *);
+void *hpfs_map_sector(struct super_block *, unsigned, struct buffer_head **, int);
+void *hpfs_get_sector(struct super_block *, unsigned, struct buffer_head **);
+void *hpfs_map_4sectors(struct super_block *, unsigned, struct quad_buffer_head *, int);
+void *hpfs_get_4sectors(struct super_block *, unsigned, struct quad_buffer_head *);
+void hpfs_brelse4(struct quad_buffer_head *);
+void hpfs_mark_4buffers_dirty(struct quad_buffer_head *);
+
+/* dentry.c */
+
+void hpfs_set_dentry_operations(struct dentry *);
+
+/* dir.c */
+
+int hpfs_dir_release(struct inode *, struct file *);
+loff_t hpfs_dir_lseek(struct file *, loff_t, int);
+int hpfs_readdir(struct file *, void *, filldir_t);
+struct dentry *hpfs_lookup(struct inode *, struct dentry *);
+
+/* dnode.c */
+
+void hpfs_add_pos(struct inode *, loff_t *);
+void hpfs_del_pos(struct inode *, loff_t *);
+struct hpfs_dirent *hpfs_add_de(struct super_block *, struct dnode *, unsigned char *, unsigned, secno);
+void hpfs_delete_de(struct super_block *, struct dnode *, struct hpfs_dirent *);
+int hpfs_add_to_dnode(struct inode *, dnode_secno, unsigned char *, unsigned, struct hpfs_dirent *, dnode_secno);
+int hpfs_add_dirent(struct inode *, unsigned char *, unsigned, struct hpfs_dirent *, int);
+int hpfs_remove_dirent(struct inode *, dnode_secno, struct hpfs_dirent *, struct quad_buffer_head *, int);
+void hpfs_count_dnodes(struct super_block *, dnode_secno, int *, int *, int *);
+dnode_secno hpfs_de_as_down_as_possible(struct super_block *, dnode_secno dno);
+struct hpfs_dirent *map_pos_dirent(struct inode *, loff_t *, struct quad_buffer_head *);
+struct hpfs_dirent *map_dirent(struct inode *, dnode_secno, char *, unsigned, dnode_secno *, struct quad_buffer_head *);
+void hpfs_remove_dtree(struct super_block *, dnode_secno);
+struct hpfs_dirent *map_fnode_dirent(struct super_block *, fnode_secno, struct fnode *, struct quad_buffer_head *);
+
+/* ea.c */
+
+void hpfs_ea_ext_remove(struct super_block *, secno, int, unsigned);
+int hpfs_read_ea(struct super_block *, struct fnode *, char *, char *, int);
+char *hpfs_get_ea(struct super_block *, struct fnode *, char *, int *);
+void hpfs_set_ea(struct inode *, struct fnode *, char *, char *, int);
+
+/* file.c */
+
+int hpfs_file_release(struct inode *, struct file *);
+int hpfs_open(struct inode *, struct file *);
+int hpfs_file_fsync(struct file *, struct dentry *, int);
+secno hpfs_bmap(struct inode *, unsigned);
+void hpfs_truncate(struct inode *);
+int hpfs_get_block(struct inode *inode, long iblock, struct buffer_head *bh_result, int create);
+ssize_t hpfs_file_write(struct file *file, const char *buf, size_t count, loff_t *ppos);
+
+/* inode.c */
+
+void hpfs_read_inode(struct inode *);
+void hpfs_write_inode_ea(struct inode *, struct fnode *);
+void hpfs_write_inode(struct inode *);
+void hpfs_write_inode_nolock(struct inode *);
+int hpfs_notify_change(struct dentry *, struct iattr *);
+void hpfs_write_if_changed(struct inode *);
+void hpfs_delete_inode(struct inode *);
+
+/* map.c */
+
+unsigned *hpfs_map_dnode_bitmap(struct super_block *, struct quad_buffer_head *);
+unsigned *hpfs_map_bitmap(struct super_block *, unsigned, struct quad_buffer_head *, char *);
+char *hpfs_load_code_page(struct super_block *, secno);
+secno *hpfs_load_bitmap_directory(struct super_block *, secno bmp);
+struct fnode *hpfs_map_fnode(struct super_block *s, ino_t, struct buffer_head **);
+struct anode *hpfs_map_anode(struct super_block *s, anode_secno, struct buffer_head **);
+struct dnode *hpfs_map_dnode(struct super_block *s, dnode_secno, struct quad_buffer_head *);
+dnode_secno hpfs_fnode_dno(struct super_block *s, ino_t ino);
+
+/* name.c */
+
+unsigned char hpfs_upcase(unsigned char *, unsigned char);
+int hpfs_chk_name(unsigned char *, unsigned *);
+char *hpfs_translate_name(struct super_block *, unsigned char *, unsigned, int, int);
+int hpfs_compare_names(struct super_block *, unsigned char *, unsigned, unsigned char *, unsigned, int);
+int hpfs_is_name_long(unsigned char *, unsigned);
+void hpfs_adjust_length(unsigned char *, unsigned *);
+void hpfs_decide_conv(struct inode *, unsigned char *, unsigned);
+
+/* namei.c */
+
+int hpfs_mkdir(struct inode *, struct dentry *, int);
+int hpfs_create(struct inode *, struct dentry *, int);
+int hpfs_mknod(struct inode *, struct dentry *, int, int);
+int hpfs_symlink(struct inode *, struct dentry *, const char *);
+int hpfs_unlink(struct inode *, struct dentry *);
+int hpfs_rmdir(struct inode *, struct dentry *);
+int hpfs_symlink_readpage(struct file *, struct page *);
+int hpfs_rename(struct inode *, struct dentry *, struct inode *, struct dentry *);
+
+/* super.c */
+
+void hpfs_error(struct super_block *, char *, ...);
+int hpfs_stop_cycles(struct super_block *, int, int *, int *, char *);
+int hpfs_remount_fs(struct super_block *, int *, char *);
+void hpfs_put_super(struct super_block *);
+unsigned hpfs_count_one_bitmap(struct super_block *, secno);
+int hpfs_statfs(struct super_block *, struct statfs *);
+
+extern struct address_space_operations hpfs_aops;
diff --git a/fs/hpfs/inode.c b/fs/hpfs/inode.c
new file mode 100644
index 00000000000000..9b224cf7ba2d2a
--- /dev/null
+++ b/fs/hpfs/inode.c
@@ -0,0 +1,328 @@
+/*
+ *  linux/fs/hpfs/inode.c
+ *
+ *  Mikulas Patocka (mikulas@artax.karlin.mff.cuni.cz), 1998-1999
+ *
+ *  inode VFS functions
+ */
+
+#include <linux/sched.h>
+#include <linux/smp_lock.h>
+#include "hpfs_fn.h"
+
+static struct file_operations hpfs_file_ops =
+{
+	llseek:		generic_file_llseek,
+	read:		generic_file_read,
+	write:		hpfs_file_write,
+	mmap:		generic_file_mmap,
+	open:		hpfs_open,
+	release:	hpfs_file_release,
+	fsync:		hpfs_file_fsync,
+};
+
+static struct inode_operations hpfs_file_iops =
+{
+	truncate:	hpfs_truncate,
+	setattr:	hpfs_notify_change,
+};
+
+static struct file_operations hpfs_dir_ops =
+{
+	llseek:		hpfs_dir_lseek,
+	read:		generic_read_dir,
+	readdir:	hpfs_readdir,
+	open:		hpfs_open,
+	release:	hpfs_dir_release,
+	fsync:		hpfs_file_fsync,
+};
+
+static struct inode_operations hpfs_dir_iops =
+{
+	create:		hpfs_create,
+	lookup:		hpfs_lookup,
+	unlink:		hpfs_unlink,
+	symlink:	hpfs_symlink,
+	mkdir:		hpfs_mkdir,
+	rmdir:		hpfs_rmdir,
+	mknod:		hpfs_mknod,
+	rename:		hpfs_rename,
+	setattr:	hpfs_notify_change,
+};
+
+struct address_space_operations hpfs_symlink_aops = {
+	readpage:	hpfs_symlink_readpage
+};
+
+void hpfs_read_inode(struct inode *i)
+{
+	struct buffer_head *bh;
+	struct fnode *fnode;
+	struct super_block *sb = i->i_sb;
+	unsigned char *ea;
+	int ea_size;
+	init_MUTEX(&i->i_hpfs_sem);
+	i->i_uid = sb->s_hpfs_uid;
+	i->i_gid = sb->s_hpfs_gid;
+	i->i_mode = sb->s_hpfs_mode;
+	i->i_hpfs_conv = sb->s_hpfs_conv;
+	i->i_blksize = 512;
+	i->i_size = -1;
+	i->i_blocks = -1;
+	
+	i->i_hpfs_dno = 0;
+	i->i_hpfs_n_secs = 0;
+	i->i_hpfs_file_sec = 0;
+	i->i_hpfs_disk_sec = 0;
+	i->i_hpfs_dpos = 0;
+	i->i_hpfs_dsubdno = 0;
+	i->i_hpfs_ea_mode = 0;
+	i->i_hpfs_ea_uid = 0;
+	i->i_hpfs_ea_gid = 0;
+	i->i_hpfs_ea_size = 0;
+	i->i_version = ++event;
+
+	i->i_hpfs_rddir_off = NULL;
+	i->i_hpfs_dirty = 0;
+
+	i->i_atime = 0;
+	i->i_mtime = 0;
+	i->i_ctime = 0;
+
+	if (!i->i_sb->s_hpfs_rd_inode)
+		hpfs_error(i->i_sb, "read_inode: s_hpfs_rd_inode == 0");
+	if (i->i_sb->s_hpfs_rd_inode == 2) {
+		i->i_mode |= S_IFREG;
+		i->i_mode &= ~0111;
+		i->i_op = &hpfs_file_iops;
+		i->i_fop = &hpfs_file_ops;
+		i->i_nlink = 1;
+		return;
+	}
+	if (!(fnode = hpfs_map_fnode(sb, i->i_ino, &bh))) {
+		/*i->i_mode |= S_IFREG;
+		i->i_mode &= ~0111;
+		i->i_op = &hpfs_file_iops;
+		i->i_fop = &hpfs_file_ops;
+		i->i_nlink = 0;*/
+		make_bad_inode(i);
+		return;
+	}
+	if (i->i_sb->s_hpfs_eas) {
+		if ((ea = hpfs_get_ea(i->i_sb, fnode, "UID", &ea_size))) {
+			if (ea_size == 2) {
+				i->i_uid = ea[0] + (ea[1] << 8);
+				i->i_hpfs_ea_uid = 1;
+			}
+			kfree(ea);
+		}
+		if ((ea = hpfs_get_ea(i->i_sb, fnode, "GID", &ea_size))) {
+			if (ea_size == 2) {
+				i->i_gid = ea[0] + (ea[1] << 8);
+				i->i_hpfs_ea_gid = 1;
+			}
+			kfree(ea);
+		}
+		if ((ea = hpfs_get_ea(i->i_sb, fnode, "SYMLINK", &ea_size))) {
+			kfree(ea);
+			i->i_mode = S_IFLNK | 0777;
+			i->i_op = &page_symlink_inode_operations;
+			i->i_data.a_ops = &hpfs_symlink_aops;
+			i->i_nlink = 1;
+			i->i_size = ea_size;
+			i->i_blocks = 1;
+			brelse(bh);
+			return;
+		}
+		if ((ea = hpfs_get_ea(i->i_sb, fnode, "MODE", &ea_size))) {
+			int rdev = 0;
+			umode_t mode = sb->s_hpfs_mode;
+			if (ea_size == 2) {
+				mode = ea[0] + (ea[1] << 8);
+				i->i_hpfs_ea_mode = 1;
+			}
+			kfree(ea);
+			i->i_mode = mode;
+			if (S_ISBLK(mode) || S_ISCHR(mode)) {
+				if ((ea = hpfs_get_ea(i->i_sb, fnode, "DEV", &ea_size))) {
+					if (ea_size == 4)
+						rdev = ea[0] + (ea[1] << 8) + (ea[2] << 16) + (ea[3] << 24);
+					kfree(ea);
+				}
+			}
+			if (S_ISBLK(mode) || S_ISCHR(mode) || S_ISFIFO(mode) || S_ISSOCK(mode)) {
+				brelse(bh);
+				i->i_nlink = 1;
+				i->i_size = 0;
+				i->i_blocks = 1;
+				init_special_inode(i, mode, rdev);
+				return;
+			}
+		}
+	}
+	if (fnode->dirflag) {
+		unsigned n_dnodes, n_subdirs;
+		i->i_mode |= S_IFDIR;
+		i->i_op = &hpfs_dir_iops;
+		i->i_fop = &hpfs_dir_ops;
+		i->i_hpfs_parent_dir = fnode->up;
+		i->i_hpfs_dno = fnode->u.external[0].disk_secno;
+		if (sb->s_hpfs_chk >= 2) {
+			struct buffer_head *bh0;
+			if (hpfs_map_fnode(sb, i->i_hpfs_parent_dir, &bh0)) brelse(bh0);
+		}
+		n_dnodes = 0; n_subdirs = 0;
+		hpfs_count_dnodes(i->i_sb, i->i_hpfs_dno, &n_dnodes, &n_subdirs, NULL);
+		i->i_blocks = 4 * n_dnodes;
+		i->i_size = 2048 * n_dnodes;
+		i->i_nlink = 2 + n_subdirs;
+	} else {
+		i->i_mode |= S_IFREG;
+		if (!i->i_hpfs_ea_mode) i->i_mode &= ~0111;
+		i->i_op = &hpfs_file_iops;
+		i->i_fop = &hpfs_file_ops;
+		i->i_nlink = 1;
+		i->i_size = fnode->file_size;
+		i->i_blocks = ((i->i_size + 511) >> 9) + 1;
+		i->i_data.a_ops = &hpfs_aops;
+		i->u.hpfs_i.mmu_private = i->i_size;
+	}
+	brelse(bh);
+}
+
+void hpfs_write_inode_ea(struct inode *i, struct fnode *fnode)
+{
+	/*if (fnode->acl_size_l || fnode->acl_size_s) {
+		   Some unknown structures like ACL may be in fnode,
+		   we'd better not overwrite them
+		hpfs_error(i->i_sb, "fnode %08x has some unknown HPFS386 stuctures", i->i_ino);
+	} else*/ if (i->i_sb->s_hpfs_eas >= 2) {
+		unsigned char ea[4];
+		if ((i->i_uid != i->i_sb->s_hpfs_uid) || i->i_hpfs_ea_uid) {
+			ea[0] = i->i_uid & 0xff;
+			ea[1] = i->i_uid >> 8;
+			hpfs_set_ea(i, fnode, "UID", ea, 2);
+			i->i_hpfs_ea_uid = 1;
+		}
+		if ((i->i_gid != i->i_sb->s_hpfs_gid) || i->i_hpfs_ea_gid) {
+			ea[0] = i->i_gid & 0xff;
+			ea[1] = i->i_gid >> 8;
+			hpfs_set_ea(i, fnode, "GID", ea, 2);
+			i->i_hpfs_ea_gid = 1;
+		}
+		if (!S_ISLNK(i->i_mode))
+			if ((i->i_mode != ((i->i_sb->s_hpfs_mode & ~(S_ISDIR(i->i_mode) ? 0 : 0111))
+			  | (S_ISDIR(i->i_mode) ? S_IFDIR : S_IFREG))
+			  && i->i_mode != ((i->i_sb->s_hpfs_mode & ~(S_ISDIR(i->i_mode) ? 0222 : 0333))
+			  | (S_ISDIR(i->i_mode) ? S_IFDIR : S_IFREG))) || i->i_hpfs_ea_mode) {
+				ea[0] = i->i_mode & 0xff;
+				ea[1] = i->i_mode >> 8;
+				hpfs_set_ea(i, fnode, "MODE", ea, 2);
+				i->i_hpfs_ea_mode = 1;
+			}
+		if (S_ISBLK(i->i_mode) || S_ISCHR(i->i_mode)) {
+			int d = kdev_t_to_nr(i->i_rdev);
+			ea[0] = d & 0xff;
+			ea[1] = (d >> 8) & 0xff;
+			ea[2] = (d >> 16) & 0xff;
+			ea[3] = d >> 24;
+			hpfs_set_ea(i, fnode, "DEV", ea, 4);
+		}
+	}
+}
+
+void hpfs_write_inode(struct inode *i)
+{
+	struct inode *parent;
+	if (!i->i_nlink) return;
+	if (i->i_ino == i->i_sb->s_hpfs_root) return;
+	if (i->i_hpfs_rddir_off && !atomic_read(&i->i_count)) {
+		if (*i->i_hpfs_rddir_off) printk("HPFS: write_inode: some position still there\n");
+		kfree(i->i_hpfs_rddir_off);
+		i->i_hpfs_rddir_off = NULL;
+	}
+	i->i_hpfs_dirty = 0;
+	hpfs_lock_iget(i->i_sb, 1);
+	parent = iget(i->i_sb, i->i_hpfs_parent_dir);
+	hpfs_unlock_iget(i->i_sb);
+	hpfs_lock_inode(parent);
+	hpfs_write_inode_nolock(i);
+	hpfs_unlock_inode(parent);
+	iput(parent);
+}
+
+void hpfs_write_inode_nolock(struct inode *i)
+{
+	struct buffer_head *bh;
+	struct fnode *fnode;
+	struct quad_buffer_head qbh;
+	struct hpfs_dirent *de;
+	if (i->i_ino == i->i_sb->s_hpfs_root) return;
+	if (!(fnode = hpfs_map_fnode(i->i_sb, i->i_ino, &bh))) return;
+	if (i->i_ino != i->i_sb->s_hpfs_root && i->i_nlink) {
+		if (!(de = map_fnode_dirent(i->i_sb, i->i_ino, fnode, &qbh))) {
+			brelse(bh);
+			return;
+		}
+	} else de = NULL;
+	if (S_ISREG(i->i_mode)) {
+		fnode->file_size = i->i_size;
+		if (de) de->file_size = i->i_size;
+	} else if (S_ISDIR(i->i_mode)) {
+		fnode->file_size = 0;
+		if (de) de->file_size = 0;
+	}
+	hpfs_write_inode_ea(i, fnode);
+	if (de) {
+		de->write_date = gmt_to_local(i->i_sb, i->i_mtime);
+		de->read_date = gmt_to_local(i->i_sb, i->i_atime);
+		de->creation_date = gmt_to_local(i->i_sb, i->i_ctime);
+		de->read_only = !(i->i_mode & 0222);
+		de->ea_size = i->i_hpfs_ea_size;
+		hpfs_mark_4buffers_dirty(&qbh);
+		hpfs_brelse4(&qbh);
+	}
+	if (S_ISDIR(i->i_mode)) {
+		if ((de = map_dirent(i, i->i_hpfs_dno, "\001\001", 2, NULL, &qbh))) {
+			de->write_date = gmt_to_local(i->i_sb, i->i_mtime);
+			de->read_date = gmt_to_local(i->i_sb, i->i_atime);
+			de->creation_date = gmt_to_local(i->i_sb, i->i_ctime);
+			de->read_only = !(i->i_mode & 0222);
+			de->ea_size = /*i->i_hpfs_ea_size*/0;
+			de->file_size = 0;
+			hpfs_mark_4buffers_dirty(&qbh);
+			hpfs_brelse4(&qbh);
+		} else hpfs_error(i->i_sb, "directory %08x doesn't have '.' entry", i->i_ino);
+	}
+	mark_buffer_dirty(bh);
+	brelse(bh);
+}
+
+int hpfs_notify_change(struct dentry *dentry, struct iattr *attr)
+{
+	struct inode *inode = dentry->d_inode;
+	int error;
+	if ((attr->ia_valid & ATTR_SIZE) && attr->ia_size > inode->i_size) 
+		return -EINVAL;
+	if (inode->i_sb->s_hpfs_root == inode->i_ino) return -EINVAL;
+	if ((error = inode_change_ok(inode, attr))) return error;
+	error = inode_setattr(inode, attr);
+	if (error) return error;
+	hpfs_write_inode(inode);
+	return 0;
+}
+
+void hpfs_write_if_changed(struct inode *inode)
+{
+	if (inode->i_hpfs_dirty) {
+		hpfs_write_inode(inode);
+	}
+}
+
+void hpfs_delete_inode(struct inode *inode)
+{
+	lock_kernel();
+	hpfs_remove_fnode(inode->i_sb, inode->i_ino);
+	unlock_kernel();
+	clear_inode(inode);
+}
diff --git a/fs/hpfs/map.c b/fs/hpfs/map.c
new file mode 100644
index 00000000000000..eef5731b43cf64
--- /dev/null
+++ b/fs/hpfs/map.c
@@ -0,0 +1,275 @@
+/*
+ *  linux/fs/hpfs/map.c
+ *
+ *  Mikulas Patocka (mikulas@artax.karlin.mff.cuni.cz), 1998-1999
+ *
+ *  mapping structures to memory with some minimal checks
+ */
+
+#include "hpfs_fn.h"
+
+unsigned *hpfs_map_dnode_bitmap(struct super_block *s, struct quad_buffer_head *qbh)
+{
+	return hpfs_map_4sectors(s, s->s_hpfs_dmap, qbh, 0);
+}
+
+unsigned int *hpfs_map_bitmap(struct super_block *s, unsigned bmp_block,
+			 struct quad_buffer_head *qbh, char *id)
+{
+	secno sec;
+	if (s->s_hpfs_chk) if (bmp_block * 16384 > s->s_hpfs_fs_size) {
+		hpfs_error(s, "hpfs_map_bitmap called with bad parameter: %08x at %s", bmp_block, id);
+		return NULL;
+	}
+	sec = s->s_hpfs_bmp_dir[bmp_block];
+	if (!sec || sec > s->s_hpfs_fs_size-4) {
+		hpfs_error(s, "invalid bitmap block pointer %08x -> %08x at %s", bmp_block, sec, id);
+		return NULL;
+	}
+	return hpfs_map_4sectors(s, sec, qbh, 4);
+}
+
+/*
+ * Load first code page into kernel memory, return pointer to 256-byte array,
+ * first 128 bytes are uppercasing table for chars 128-255, next 128 bytes are
+ * lowercasing table
+ */
+
+char *hpfs_load_code_page(struct super_block *s, secno cps)
+{
+	struct buffer_head *bh;
+	secno cpds;
+	unsigned cpi;
+	unsigned char *ptr;
+	unsigned char *cp_table;
+	int i;
+	struct code_page_data *cpd;
+	struct code_page_directory *cp = hpfs_map_sector(s, cps, &bh, 0);
+	if (!cp) return NULL;
+	if (cp->magic != CP_DIR_MAGIC) {
+		printk("HPFS: Code page directory magic doesn't match (magic = %08x)\n", cp->magic);
+		brelse(bh);
+		return NULL;
+	}
+	if (!cp->n_code_pages) {
+		printk("HPFS: n_code_pages == 0\n");
+		brelse(bh);
+		return NULL;
+	}
+	cpds = cp->array[0].code_page_data;
+	cpi = cp->array[0].index;
+	brelse(bh);
+
+	if (cpi >= 3) {
+		printk("HPFS: Code page index out of array\n");
+		return NULL;
+	}
+	
+	if (!(cpd = hpfs_map_sector(s, cpds, &bh, 0))) return NULL;
+	if ((unsigned)cpd->offs[cpi] > 0x178) {
+		printk("HPFS: Code page index out of sector\n");
+		brelse(bh);
+		return NULL;
+	}
+	ptr = (char *)cpd + cpd->offs[cpi] + 6;
+	if (!(cp_table = kmalloc(256, GFP_KERNEL))) {
+		printk("HPFS: out of memory for code page table\n");
+		brelse(bh);
+		return NULL;
+	}
+	memcpy(cp_table, ptr, 128);
+	brelse(bh);
+
+	/* Try to build lowercasing table from uppercasing one */
+
+	for (i=128; i<256; i++) cp_table[i]=i;
+	for (i=128; i<256; i++) if (cp_table[i-128]!=i && cp_table[i-128]>=128)
+		cp_table[cp_table[i-128]] = i;
+	
+	return cp_table;
+}
+
+secno *hpfs_load_bitmap_directory(struct super_block *s, secno bmp)
+{
+	struct buffer_head *bh;
+	int n = (s->s_hpfs_fs_size + 0x200000 - 1) >> 21;
+	int i;
+	secno *b;
+	if (!(b = kmalloc(n * 512, GFP_KERNEL))) {
+		printk("HPFS: can't allocate memory for bitmap directory\n");
+		return NULL;
+	}	
+	for (i=0;i<n;i++) {
+		secno *d = hpfs_map_sector(s, bmp+i, &bh, n - i - 1);
+		if (!d) {
+			kfree(b);
+			return NULL;
+		}
+		memcpy((char *)b + 512 * i, d, 512);
+		brelse(bh);
+	}
+	return b;
+}
+
+/*
+ * Load fnode to memory
+ */
+
+struct fnode *hpfs_map_fnode(struct super_block *s, ino_t ino, struct buffer_head **bhp)
+{
+	struct fnode *fnode;
+	if (s->s_hpfs_chk) if (hpfs_chk_sectors(s, ino, 1, "fnode")) {
+		return NULL;
+	}
+	if ((fnode = hpfs_map_sector(s, ino, bhp, FNODE_RD_AHEAD))) {
+		if (s->s_hpfs_chk) {
+			struct extended_attribute *ea;
+			struct extended_attribute *ea_end;
+			if (fnode->magic != FNODE_MAGIC) {
+				hpfs_error(s, "bad magic on fnode %08x", ino);
+				goto bail;
+			}
+			if (!fnode->dirflag) {
+				if ((unsigned)fnode->btree.n_used_nodes + (unsigned)fnode->btree.n_free_nodes !=
+				    (fnode->btree.internal ? 12 : 8)) {
+					hpfs_error(s, "bad number of nodes in fnode %08x", ino);
+					goto bail;
+				}
+				if (fnode->btree.first_free !=
+				    8 + fnode->btree.n_used_nodes * (fnode->btree.internal ? 8 : 12)) {
+					hpfs_error(s, "bad first_free pointer in fnode %08x", ino);
+					goto bail;
+				}
+			}
+			if (fnode->ea_size_s && ((signed int)fnode->ea_offs < 0xc4 ||
+			   (signed int)fnode->ea_offs + fnode->acl_size_s + fnode->ea_size_s > 0x200)) {
+				hpfs_error(s, "bad EA info in fnode %08x: ea_offs == %04x ea_size_s == %04x",
+					ino, fnode->ea_offs, fnode->ea_size_s);
+				goto bail;
+			}
+			ea = fnode_ea(fnode);
+			ea_end = fnode_end_ea(fnode);
+			while (ea != ea_end) {
+				if (ea > ea_end) {
+					hpfs_error(s, "bad EA in fnode %08x", ino);
+					goto bail;
+				}
+				ea = next_ea(ea);
+			}
+		}
+	}
+	return fnode;
+	bail:
+	brelse(*bhp);
+	return NULL;
+}
+
+struct anode *hpfs_map_anode(struct super_block *s, anode_secno ano, struct buffer_head **bhp)
+{
+	struct anode *anode;
+	if (s->s_hpfs_chk) if (hpfs_chk_sectors(s, ano, 1, "anode")) return NULL;
+	if ((anode = hpfs_map_sector(s, ano, bhp, ANODE_RD_AHEAD)))
+		if (s->s_hpfs_chk) {
+			if (anode->magic != ANODE_MAGIC || anode->self != ano) {
+				hpfs_error(s, "bad magic on anode %08x", ano);
+				goto bail;
+			}
+			if ((unsigned)anode->btree.n_used_nodes + (unsigned)anode->btree.n_free_nodes !=
+			    (anode->btree.internal ? 60 : 40)) {
+				hpfs_error(s, "bad number of nodes in anode %08x", ano);
+				goto bail;
+			}
+			if (anode->btree.first_free !=
+			    8 + anode->btree.n_used_nodes * (anode->btree.internal ? 8 : 12)) {
+				hpfs_error(s, "bad first_free pointer in anode %08x", ano);
+				goto bail;
+			}
+		}
+	return anode;
+	bail:
+	brelse(*bhp);
+	return NULL;
+}
+
+/*
+ * Load dnode to memory and do some checks
+ */
+
+struct dnode *hpfs_map_dnode(struct super_block *s, unsigned secno,
+			     struct quad_buffer_head *qbh)
+{
+	struct dnode *dnode;
+	if (s->s_hpfs_chk) {
+		if (hpfs_chk_sectors(s, secno, 4, "dnode")) return NULL;
+		if (secno & 3) {
+			hpfs_error(s, "dnode %08x not byte-aligned", secno);
+			return NULL;
+		}	
+	}
+	if ((dnode = hpfs_map_4sectors(s, secno, qbh, DNODE_RD_AHEAD)))
+		if (s->s_hpfs_chk) {
+			unsigned p, pp = 0;
+			unsigned char *d = (char *)dnode;
+			int b = 0;
+			if (dnode->magic != DNODE_MAGIC) {
+				hpfs_error(s, "bad magic on dnode %08x", secno);
+				goto bail;
+			}
+			if (dnode->self != secno)
+				hpfs_error(s, "bad self pointer on dnode %08x self = %08x", secno, dnode->self);
+			/* Check dirents - bad dirents would cause infinite
+			   loops or shooting to memory */
+			if (dnode->first_free > 2048/* || dnode->first_free < 84*/) {
+				hpfs_error(s, "dnode %08x has first_free == %08x", secno, dnode->first_free);
+				goto bail;
+			}
+			for (p = 20; p < dnode->first_free; p += d[p] + (d[p+1] << 8)) {
+				struct hpfs_dirent *de = (struct hpfs_dirent *)((char *)dnode + p);
+				if (de->length > 292 || (de->length < 32) || (de->length & 3) || p + de->length > 2048) {
+					hpfs_error(s, "bad dirent size in dnode %08x, dirent %03x, last %03x", secno, p, pp);
+					goto bail;
+				}
+				if (((31 + de->namelen + de->down*4 + 3) & ~3) != de->length) {
+					if (((31 + de->namelen + de->down*4 + 3) & ~3) < de->length && s->s_flags & MS_RDONLY) goto ok;
+					hpfs_error(s, "namelen does not match dirent size in dnode %08x, dirent %03x, last %03x", secno, p, pp);
+					goto bail;
+				}
+				ok:
+				if (s->s_hpfs_chk >= 2) b |= 1 << de->down;
+				if (de->down) if (de_down_pointer(de) < 0x10) {
+					hpfs_error(s, "bad down pointer in dnode %08x, dirent %03x, last %03x", secno, p, pp);
+					goto bail;
+				}
+				pp = p;
+				
+			}
+			if (p != dnode->first_free) {
+				hpfs_error(s, "size on last dirent does not match first_free; dnode %08x", secno);
+				goto bail;
+			}
+			if (d[pp + 30] != 1 || d[pp + 31] != 255) {
+				hpfs_error(s, "dnode %08x does not end with \\377 entry", secno);
+				goto bail;
+			}
+			if (b == 3) printk("HPFS: warning: unbalanced dnode tree, dnode %08x; see hpfs.txt 4 more info\n", secno);
+		}
+	return dnode;
+	bail:
+	hpfs_brelse4(qbh);
+	return NULL;
+}
+
+dnode_secno hpfs_fnode_dno(struct super_block *s, ino_t ino)
+{
+	struct buffer_head *bh;
+	struct fnode *fnode;
+	dnode_secno dno;
+
+	fnode = hpfs_map_fnode(s, ino, &bh);
+	if (!fnode)
+		return 0;
+
+	dno = fnode->u.external[0].disk_secno;
+	brelse(bh);
+	return dno;
+}
diff --git a/fs/hpfs/name.c b/fs/hpfs/name.c
new file mode 100644
index 00000000000000..f9fa94c7ef8665
--- /dev/null
+++ b/fs/hpfs/name.c
@@ -0,0 +1,144 @@
+/*
+ *  linux/fs/hpfs/name.c
+ *
+ *  Mikulas Patocka (mikulas@artax.karlin.mff.cuni.cz), 1998-1999
+ *
+ *  operations with filenames
+ */
+
+#include <linux/string.h>
+#include "hpfs_fn.h"
+
+char *text_postfix[]={
+".ASM", ".BAS", ".BAT", ".C", ".CC", ".CFG", ".CMD", ".CON", ".CPP", ".DEF",
+".DOC", ".DPR", ".ERX", ".H", ".HPP", ".HTM", ".HTML", ".JAVA", ".LOG", ".PAS",
+".RC", ".TEX", ".TXT", ".Y", ""};
+
+char *text_prefix[]={
+"AUTOEXEC.", "CHANGES", "COPYING", "CONFIG.", "CREDITS", "FAQ", "FILE_ID.DIZ",
+"MAKEFILE", "READ.ME", "README", "TERMCAP", ""};
+
+void hpfs_decide_conv(struct inode *inode, unsigned char *name, unsigned len)
+{
+	int i;
+	if (inode->i_hpfs_conv != CONV_AUTO) return;
+	for (i = 0; *text_postfix[i]; i++) {
+		int l = strlen(text_postfix[i]);
+		if (l <= len)
+			if (!hpfs_compare_names(inode->i_sb, text_postfix[i], l, name + len - l, l, 0))
+				goto text;
+	}
+	for (i = 0; *text_prefix[i]; i++) {
+		int l = strlen(text_prefix[i]);
+		if (l <= len)
+			if (!hpfs_compare_names(inode->i_sb, text_prefix[i], l, name, l, 0))
+				goto text;
+	}
+	inode->i_hpfs_conv = CONV_BINARY;
+	return;
+	text:
+	inode->i_hpfs_conv = CONV_TEXT;
+	return;
+}
+
+static inline int not_allowed_char(unsigned char c)
+{
+	return c<' ' || c=='"' || c=='*' || c=='/' || c==':' || c=='<' ||
+	      c=='>' || c=='?' || c=='\\' || c=='|';
+}
+
+static inline int no_dos_char(unsigned char c)
+{	/* Characters that are allowed in HPFS but not in DOS */
+	return c=='+' || c==',' || c==';' || c=='=' || c=='[' || c==']';
+}
+
+static inline unsigned char upcase(unsigned char *dir, unsigned char a)
+{
+	if (a<128 || a==255) return a>='a' && a<='z' ? a - 0x20 : a;
+	if (!dir) return a;
+	return dir[a-128];
+}
+
+unsigned char hpfs_upcase(unsigned char *dir, unsigned char a)
+{
+	return upcase(dir, a);
+}
+
+static inline unsigned char locase(unsigned char *dir, unsigned char a)
+{
+	if (a<128 || a==255) return a>='A' && a<='Z' ? a + 0x20 : a;
+	if (!dir) return a;
+	return dir[a];
+}
+
+int hpfs_chk_name(unsigned char *name, unsigned *len)
+{
+	int i;
+	if (*len > 254) return -ENAMETOOLONG;
+	hpfs_adjust_length(name, len);
+	if (!*len) return -EINVAL;
+	for (i = 0; i < *len; i++) if (not_allowed_char(name[i])) return -EINVAL;
+	if (*len == 1) if (name[0] == '.') return -EINVAL;
+	if (*len == 2) if (name[0] == '.' && name[1] == '.') return -EINVAL;
+	return 0;
+}
+
+char *hpfs_translate_name(struct super_block *s, unsigned char *from,
+			  unsigned len, int lc, int lng)
+{
+	char *to;
+	int i;
+	if (s->s_hpfs_chk >= 2) if (hpfs_is_name_long(from, len) != lng) {
+		printk("HPFS: Long name flag mismatch - name ");
+		for (i=0; i<len; i++) printk("%c", from[i]);
+		printk(" misidentified as %s.\n", lng ? "short" : "long");
+		printk("HPFS: It's nothing serious. It could happen because of bug in OS/2.\nHPFS: Set checks=normal to disable this message.\n");
+	}
+	if (!lc) return from;
+	if (!(to = kmalloc(len, GFP_KERNEL))) {
+		printk("HPFS: can't allocate memory for name conversion buffer\n");
+		return from;
+	}
+	for (i = 0; i < len; i++) to[i] = locase(s->s_hpfs_cp_table,from[i]);
+	return to;
+}
+
+int hpfs_compare_names(struct super_block *s, unsigned char *n1, unsigned l1,
+		       unsigned char *n2, unsigned l2, int last)
+{
+	unsigned l = l1 < l2 ? l1 : l2;
+	unsigned i;
+	if (last) return -1;
+	for (i = 0; i < l; i++) {
+		unsigned char c1 = upcase(s->s_hpfs_cp_table,n1[i]);
+		unsigned char c2 = upcase(s->s_hpfs_cp_table,n2[i]);
+		if (c1 < c2) return -1;
+		if (c1 > c2) return 1;
+	}
+	if (l1 < l2) return -1;
+	if (l1 > l2) return 1;
+	return 0;
+}
+
+int hpfs_is_name_long(unsigned char *name, unsigned len)
+{
+	int i,j;
+	for (i = 0; i < len && name[i] != '.'; i++)
+		if (no_dos_char(name[i])) return 1;
+	if (!i || i > 8) return 1;
+	if (i == len) return 0;
+	for (j = i + 1; j < len; j++)
+		if (name[j] == '.' || no_dos_char(name[i])) return 1;
+	return j - i > 4;
+}
+
+/* OS/2 clears dots and spaces at the end of file name, so we have to */
+
+void hpfs_adjust_length(unsigned char *name, unsigned *len)
+{
+	if (!*len) return;
+	if (*len == 1 && name[0] == '.') return;
+	if (*len == 2 && name[0] == '.' && name[1] == '.') return;
+	while (*len && (name[*len - 1] == '.' || name[*len - 1] == ' '))
+		(*len)--;
+}
diff --git a/fs/hpfs/namei.c b/fs/hpfs/namei.c
new file mode 100644
index 00000000000000..0947673627120d
--- /dev/null
+++ b/fs/hpfs/namei.c
@@ -0,0 +1,534 @@
+/*
+ *  linux/fs/hpfs/namei.c
+ *
+ *  Mikulas Patocka (mikulas@artax.karlin.mff.cuni.cz), 1998-1999
+ *
+ *  adding & removing files & directories
+ */
+
+#include <linux/string.h>
+#include "hpfs_fn.h"
+
+int hpfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+{
+	const char *name = dentry->d_name.name;
+	unsigned len = dentry->d_name.len;
+	struct quad_buffer_head qbh0;
+	struct buffer_head *bh;
+	struct hpfs_dirent *de;
+	struct fnode *fnode;
+	struct dnode *dnode;
+	struct inode *result;
+	fnode_secno fno;
+	dnode_secno dno;
+	int r;
+	struct hpfs_dirent dee;
+	int err;
+	if ((err = hpfs_chk_name((char *)name, &len))) return err==-ENOENT ? -EINVAL : err;
+	if (!(fnode = hpfs_alloc_fnode(dir->i_sb, dir->i_hpfs_dno, &fno, &bh))) goto bail;
+	if (!(dnode = hpfs_alloc_dnode(dir->i_sb, fno, &dno, &qbh0, 1))) goto bail1;
+	memset(&dee, 0, sizeof dee);
+	dee.directory = 1;
+	if (!(mode & 0222)) dee.read_only = 1;
+	/*dee.archive = 0;*/
+	dee.hidden = name[0] == '.';
+	dee.fnode = fno;
+	dee.creation_date = dee.write_date = dee.read_date = gmt_to_local(dir->i_sb, CURRENT_TIME);
+	hpfs_lock_inode(dir);
+	r = hpfs_add_dirent(dir, (char *)name, len, &dee, 0);
+	if (r == 1) goto bail2;
+	if (r == -1) {
+		brelse(bh);
+		hpfs_brelse4(&qbh0);
+		hpfs_free_sectors(dir->i_sb, fno, 1);
+		hpfs_free_dnode(dir->i_sb, dno);
+		hpfs_unlock_inode(dir);
+		return -EEXIST;
+	}
+	fnode->len = len;
+	memcpy(fnode->name, name, len > 15 ? 15 : len);
+	fnode->up = dir->i_ino;
+	fnode->dirflag = 1;
+	fnode->btree.n_free_nodes = 7;
+	fnode->btree.n_used_nodes = 1;
+	fnode->btree.first_free = 0x14;
+	fnode->u.external[0].disk_secno = dno;
+	fnode->u.external[0].file_secno = -1;
+	dnode->root_dnode = 1;
+	dnode->up = fno;
+	de = hpfs_add_de(dir->i_sb, dnode, "\001\001", 2, 0);
+	de->creation_date = de->write_date = de->read_date = gmt_to_local(dir->i_sb, CURRENT_TIME);
+	if (!(mode & 0222)) de->read_only = 1;
+	de->first = de->directory = 1;
+	/*de->hidden = de->system = 0;*/
+	de->fnode = fno;
+	mark_buffer_dirty(bh);
+	brelse(bh);
+	hpfs_mark_4buffers_dirty(&qbh0);
+	hpfs_brelse4(&qbh0);
+	dir->i_nlink++;
+	hpfs_lock_iget(dir->i_sb, 1);
+	if ((result = iget(dir->i_sb, fno))) {
+		result->i_hpfs_parent_dir = dir->i_ino;
+		result->i_ctime = result->i_mtime = result->i_atime = local_to_gmt(dir->i_sb, dee.creation_date);
+		result->i_hpfs_ea_size = 0;
+		if (dee.read_only) result->i_mode &= ~0222;
+		if (result->i_uid != current->fsuid ||
+		    result->i_gid != current->fsgid ||
+		    result->i_mode != (mode | S_IFDIR)) {
+			result->i_uid = current->fsuid;
+			result->i_gid = current->fsgid;
+			result->i_mode = mode | S_IFDIR;
+			hpfs_write_inode_nolock(result);
+		}
+		d_instantiate(dentry, result);
+	}
+	hpfs_unlock_iget(dir->i_sb);
+	hpfs_unlock_inode(dir);
+	return 0;
+	bail2:
+	hpfs_brelse4(&qbh0);
+	hpfs_free_dnode(dir->i_sb, dno);
+	hpfs_unlock_inode(dir);
+	bail1:
+	brelse(bh);
+	hpfs_free_sectors(dir->i_sb, fno, 1);
+	bail:
+	return -ENOSPC;
+}
+
+int hpfs_create(struct inode *dir, struct dentry *dentry, int mode)
+{
+	const char *name = dentry->d_name.name;
+	unsigned len = dentry->d_name.len;
+	struct inode *result = NULL;
+	struct buffer_head *bh;
+	struct fnode *fnode;
+	fnode_secno fno;
+	int r;
+	struct hpfs_dirent dee;
+	int err;
+	if ((err = hpfs_chk_name((char *)name, &len))) return err==-ENOENT ? -EINVAL : err;
+	if (!(fnode = hpfs_alloc_fnode(dir->i_sb, dir->i_hpfs_dno, &fno, &bh))) goto bail;
+	memset(&dee, 0, sizeof dee);
+	if (!(mode & 0222)) dee.read_only = 1;
+	dee.archive = 1;
+	dee.hidden = name[0] == '.';
+	dee.fnode = fno;
+	dee.creation_date = dee.write_date = dee.read_date = gmt_to_local(dir->i_sb, CURRENT_TIME);
+	hpfs_lock_inode(dir);
+	r = hpfs_add_dirent(dir, (char *)name, len, &dee, 0);
+	if (r == 1) goto bail1;
+	if (r == -1) {
+		brelse(bh);
+		hpfs_free_sectors(dir->i_sb, fno, 1);
+		hpfs_unlock_inode(dir);
+		return -EEXIST;
+	}
+	fnode->len = len;
+	memcpy(fnode->name, name, len > 15 ? 15 : len);
+	fnode->up = dir->i_ino;
+	mark_buffer_dirty(bh);
+	brelse(bh);
+	hpfs_lock_iget(dir->i_sb, 2);
+	if ((result = iget(dir->i_sb, fno))) {
+		hpfs_decide_conv(result, (char *)name, len);
+		result->i_hpfs_parent_dir = dir->i_ino;
+		result->i_ctime = result->i_mtime = result->i_atime = local_to_gmt(dir->i_sb, dee.creation_date);
+		result->i_hpfs_ea_size = 0;
+		if (dee.read_only) result->i_mode &= ~0222;
+		if (result->i_blocks == -1) result->i_blocks = 1;
+		if (result->i_size == -1) {
+			result->i_size = 0;
+			result->i_data.a_ops = &hpfs_aops;
+			result->u.hpfs_i.mmu_private = 0;
+		}
+		if (result->i_uid != current->fsuid ||
+		    result->i_gid != current->fsgid ||
+		    result->i_mode != (mode | S_IFREG)) {
+			result->i_uid = current->fsuid;
+			result->i_gid = current->fsgid;
+			result->i_mode = mode | S_IFREG;
+			hpfs_write_inode_nolock(result);
+		}
+		d_instantiate(dentry, result);
+	}
+	hpfs_unlock_iget(dir->i_sb);
+	hpfs_unlock_inode(dir);
+	return 0;
+	bail1:
+	brelse(bh);
+	hpfs_free_sectors(dir->i_sb, fno, 1);
+	hpfs_unlock_inode(dir);
+	bail:
+	return -ENOSPC;
+}
+
+int hpfs_mknod(struct inode *dir, struct dentry *dentry, int mode, int rdev)
+{
+	const char *name = dentry->d_name.name;
+	unsigned len = dentry->d_name.len;
+	struct buffer_head *bh;
+	struct fnode *fnode;
+	fnode_secno fno;
+	int r;
+	struct hpfs_dirent dee;
+	struct inode *result = NULL;
+	int err;
+	if ((err = hpfs_chk_name((char *)name, &len))) return err==-ENOENT ? -EINVAL : err;
+	if (dir->i_sb->s_hpfs_eas < 2) return -EPERM;
+	if (!(fnode = hpfs_alloc_fnode(dir->i_sb, dir->i_hpfs_dno, &fno, &bh))) goto bail;
+	memset(&dee, 0, sizeof dee);
+	if (!(mode & 0222)) dee.read_only = 1;
+	dee.archive = 1;
+	dee.hidden = name[0] == '.';
+	dee.fnode = fno;
+	dee.creation_date = dee.write_date = dee.read_date = gmt_to_local(dir->i_sb, CURRENT_TIME);
+	hpfs_lock_inode(dir);
+	r = hpfs_add_dirent(dir, (char *)name, len, &dee, 0);
+	if (r == 1) goto bail1;
+	if (r == -1) {
+		brelse(bh);
+		hpfs_free_sectors(dir->i_sb, fno, 1);
+		hpfs_unlock_inode(dir);
+		return -EEXIST;
+	}
+	fnode->len = len;
+	memcpy(fnode->name, name, len > 15 ? 15 : len);
+	fnode->up = dir->i_ino;
+	mark_buffer_dirty(bh);
+	hpfs_lock_iget(dir->i_sb, 2);
+	if ((result = iget(dir->i_sb, fno))) {
+		result->i_hpfs_parent_dir = dir->i_ino;
+		result->i_ctime = result->i_mtime = result->i_atime = local_to_gmt(dir->i_sb, dee.creation_date);
+		result->i_hpfs_ea_size = 0;
+		/*if (result->i_blocks == -1) result->i_blocks = 1;
+		if (result->i_size == -1) result->i_size = 0;*/
+		result->i_uid = current->fsuid;
+		result->i_gid = current->fsgid;
+		result->i_nlink = 1;
+		result->i_size = 0;
+		result->i_blocks = 1;
+		init_special_inode(result, mode, rdev);
+		hpfs_write_inode_nolock(result);
+		d_instantiate(dentry, result);
+	}
+	hpfs_unlock_iget(dir->i_sb);
+	hpfs_unlock_inode(dir);
+	brelse(bh);
+	return 0;
+	bail1:
+	brelse(bh);
+	hpfs_free_sectors(dir->i_sb, fno, 1);
+	hpfs_unlock_inode(dir);
+	bail:
+	return -ENOSPC;
+}
+
+extern struct address_space_operations hpfs_symlink_aops;
+
+int hpfs_symlink(struct inode *dir, struct dentry *dentry, const char *symlink)
+{
+	const char *name = dentry->d_name.name;
+	unsigned len = dentry->d_name.len;
+	struct buffer_head *bh;
+	struct fnode *fnode;
+	fnode_secno fno;
+	int r;
+	struct hpfs_dirent dee;
+	struct inode *result;
+	int err;
+	if ((err = hpfs_chk_name((char *)name, &len))) return err==-ENOENT ? -EINVAL : err;
+	if (dir->i_sb->s_hpfs_eas < 2) return -EPERM;
+	if (!(fnode = hpfs_alloc_fnode(dir->i_sb, dir->i_hpfs_dno, &fno, &bh))) goto bail;
+	memset(&dee, 0, sizeof dee);
+	dee.archive = 1;
+	dee.hidden = name[0] == '.';
+	dee.fnode = fno;
+	dee.creation_date = dee.write_date = dee.read_date = gmt_to_local(dir->i_sb, CURRENT_TIME);
+	hpfs_lock_inode(dir);
+	r = hpfs_add_dirent(dir, (char *)name, len, &dee, 0);
+	if (r == 1) goto bail1;
+	if (r == -1) {
+		brelse(bh);
+		hpfs_free_sectors(dir->i_sb, fno, 1);
+		hpfs_unlock_inode(dir);
+		return -EEXIST;
+	}
+	fnode->len = len;
+	memcpy(fnode->name, name, len > 15 ? 15 : len);
+	fnode->up = dir->i_ino;
+	mark_buffer_dirty(bh);
+	brelse(bh);
+	hpfs_lock_iget(dir->i_sb, 2);
+	if ((result = iget(dir->i_sb, fno))) {
+		result->i_hpfs_parent_dir = dir->i_ino;
+		result->i_ctime = result->i_mtime = result->i_atime = local_to_gmt(dir->i_sb, dee.creation_date);
+		result->i_hpfs_ea_size = 0;
+		/*if (result->i_blocks == -1) result->i_blocks = 1;
+		if (result->i_size == -1) result->i_size = 0;*/
+		result->i_mode = S_IFLNK | 0777;
+		result->i_uid = current->fsuid;
+		result->i_gid = current->fsgid;
+		result->i_blocks = 1;
+		result->i_size = strlen(symlink);
+		result->i_op = &page_symlink_inode_operations;
+		result->i_data.a_ops = &hpfs_symlink_aops;
+		if ((fnode = hpfs_map_fnode(dir->i_sb, fno, &bh))) {
+			hpfs_set_ea(result, fnode, "SYMLINK", (char *)symlink, strlen(symlink));
+			mark_buffer_dirty(bh);
+			brelse(bh);
+		}
+		hpfs_write_inode_nolock(result);
+		d_instantiate(dentry, result);
+	}
+	hpfs_unlock_iget(dir->i_sb);
+	hpfs_unlock_inode(dir);
+	return 0;
+	bail1:
+	brelse(bh);
+	hpfs_free_sectors(dir->i_sb, fno, 1);
+	hpfs_unlock_inode(dir);
+	bail:
+	return -ENOSPC;
+}
+
+int hpfs_unlink(struct inode *dir, struct dentry *dentry)
+{
+	const char *name = dentry->d_name.name;
+	unsigned len = dentry->d_name.len;
+	struct quad_buffer_head qbh;
+	struct hpfs_dirent *de;
+	struct inode *inode = dentry->d_inode;
+	dnode_secno dno;
+	fnode_secno fno;
+	int r;
+	int rep = 0;
+	hpfs_adjust_length((char *)name, &len);
+	again:
+	hpfs_lock_2inodes(dir, inode);
+	if (!(de = map_dirent(dir, dir->i_hpfs_dno, (char *)name, len, &dno, &qbh))) {
+		hpfs_unlock_2inodes(dir, inode);
+		return -ENOENT;
+	}
+	if (de->first) {
+		hpfs_brelse4(&qbh);
+		hpfs_unlock_2inodes(dir, inode);
+		return -EPERM;
+	}
+	if (de->directory) {
+		hpfs_brelse4(&qbh);
+		hpfs_unlock_2inodes(dir, inode);
+		return -EISDIR;
+	}
+	fno = de->fnode;
+	if ((r = hpfs_remove_dirent(dir, dno, de, &qbh, 1)) == 1) hpfs_error(dir->i_sb, "there was error when removing dirent");
+	if (r != 2) {
+		inode->i_nlink--;
+		hpfs_unlock_2inodes(dir, inode);
+	} else {	/* no space for deleting, try to truncate file */
+		struct iattr newattrs;
+		int err;
+		hpfs_unlock_2inodes(dir, inode);
+		if (rep)
+			goto ret;
+		d_drop(dentry);
+		if (atomic_read(&dentry->d_count) > 1 ||
+		    permission(inode, MAY_WRITE) ||
+		    get_write_access(inode)) {
+			d_rehash(dentry);
+			goto ret;
+		}
+		/*printk("HPFS: truncating file before delete.\n");*/
+		down(&inode->i_sem);
+		newattrs.ia_size = 0;
+		newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME;
+		err = notify_change(dentry, &newattrs);
+		up(&inode->i_sem);
+		put_write_access(inode);
+		if (err)
+			goto ret;
+		rep = 1;
+		goto again;
+	}
+	ret:
+	return r == 2 ? -ENOSPC : r == 1 ? -EFSERROR : 0;
+}
+
+int hpfs_rmdir(struct inode *dir, struct dentry *dentry)
+{
+	const char *name = dentry->d_name.name;
+	unsigned len = dentry->d_name.len;
+	struct quad_buffer_head qbh;
+	struct hpfs_dirent *de;
+	struct inode *inode = dentry->d_inode;
+	dnode_secno dno;
+	fnode_secno fno;
+	int n_items = 0;
+	int r;
+	hpfs_adjust_length((char *)name, &len);
+	hpfs_lock_2inodes(dir, inode);
+	if (!(de = map_dirent(dir, dir->i_hpfs_dno, (char *)name, len, &dno, &qbh))) {
+		hpfs_unlock_2inodes(dir, inode);
+		return -ENOENT;
+	}	
+	if (de->first) {
+		hpfs_brelse4(&qbh);
+		hpfs_unlock_2inodes(dir, inode);
+		return -EPERM;
+	}
+	if (!de->directory) {
+		hpfs_brelse4(&qbh);
+		hpfs_unlock_2inodes(dir, inode);
+		return -ENOTDIR;
+	}
+	hpfs_count_dnodes(dir->i_sb, inode->i_hpfs_dno, NULL, NULL, &n_items);
+	if (n_items) {
+		hpfs_brelse4(&qbh);
+		hpfs_unlock_2inodes(dir, inode);
+		return -ENOTEMPTY;
+	}
+	fno = de->fnode;
+	if ((r = hpfs_remove_dirent(dir, dno, de, &qbh, 1)) == 1)
+		hpfs_error(dir->i_sb, "there was error when removing dirent");
+	if (r != 2) {
+		dir->i_nlink--;
+		inode->i_nlink = 0;
+		hpfs_unlock_2inodes(dir, inode);
+	} else hpfs_unlock_2inodes(dir, inode);
+	return r == 2 ? -ENOSPC : r == 1 ? -EFSERROR : 0;
+}
+
+int hpfs_symlink_readpage(struct file *file, struct page *page)
+{
+	char *link = kmap(page);
+	struct inode *i = page->mapping->host;
+	struct fnode *fnode;
+	struct buffer_head *bh;
+	int err;
+
+	err = -EIO;
+	lock_kernel();
+	if (!(fnode = hpfs_map_fnode(i->i_sb, i->i_ino, &bh)))
+		goto fail;
+	err = hpfs_read_ea(i->i_sb, fnode, "SYMLINK", link, PAGE_SIZE);
+	brelse(bh);
+	if (err)
+		goto fail;
+	unlock_kernel();
+	SetPageUptodate(page);
+	kunmap(page);
+	UnlockPage(page);
+	return 0;
+
+fail:
+	unlock_kernel();
+	SetPageError(page);
+	kunmap(page);
+	UnlockPage(page);
+	return err;
+}
+	
+int hpfs_rename(struct inode *old_dir, struct dentry *old_dentry,
+		struct inode *new_dir, struct dentry *new_dentry)
+{
+	char *old_name = (char *)old_dentry->d_name.name;
+	int old_len = old_dentry->d_name.len;
+	char *new_name = (char *)new_dentry->d_name.name;
+	int new_len = new_dentry->d_name.len;
+	struct inode *i = old_dentry->d_inode;
+	struct inode *new_inode = new_dentry->d_inode;
+	struct quad_buffer_head qbh, qbh1;
+	struct hpfs_dirent *dep, *nde;
+	struct hpfs_dirent de;
+	dnode_secno dno;
+	int r;
+	struct buffer_head *bh;
+	struct fnode *fnode;
+	int err;
+	if ((err = hpfs_chk_name((char *)new_name, &new_len))) return err;
+	err = 0;
+	hpfs_adjust_length((char *)old_name, &old_len);
+
+	hpfs_lock_3inodes(old_dir, new_dir, i);
+	
+	/* Erm? Moving over the empty non-busy directory is perfectly legal */
+	if (new_inode && S_ISDIR(new_inode->i_mode)) {
+		err = -EINVAL;
+		goto end1;
+	}
+
+	if (!(dep = map_dirent(old_dir, old_dir->i_hpfs_dno, (char *)old_name, old_len, &dno, &qbh))) {
+		hpfs_error(i->i_sb, "lookup succeeded but map dirent failed");
+		err = -ENOENT;
+		goto end1;
+	}
+	copy_de(&de, dep);
+	de.hidden = new_name[0] == '.';
+
+	if (new_inode) {
+		int r;
+		if ((r = hpfs_remove_dirent(old_dir, dno, dep, &qbh, 1)) != 2) {
+			if ((nde = map_dirent(new_dir, new_dir->i_hpfs_dno, (char *)new_name, new_len, NULL, &qbh1))) {
+				new_inode->i_nlink = 0;
+				copy_de(nde, &de);
+				memcpy(nde->name, new_name, new_len);
+				hpfs_mark_4buffers_dirty(&qbh1);
+				hpfs_brelse4(&qbh1);
+				goto end;
+			}
+			hpfs_error(new_dir->i_sb, "hpfs_rename: could not find dirent");
+			err = -EFSERROR;
+			goto end1;
+		}
+		err = r == 2 ? -ENOSPC : r == 1 ? -EFSERROR : 0;
+		goto end1;
+	}
+
+	if (new_dir == old_dir) hpfs_brelse4(&qbh);
+
+	hpfs_lock_creation(i->i_sb);
+	if ((r = hpfs_add_dirent(new_dir, new_name, new_len, &de, 1))) {
+		hpfs_unlock_creation(i->i_sb);
+		if (r == -1) hpfs_error(new_dir->i_sb, "hpfs_rename: dirent already exists!");
+		err = r == 1 ? -ENOSPC : -EFSERROR;
+		if (new_dir != old_dir) hpfs_brelse4(&qbh);
+		goto end1;
+	}
+	
+	if (new_dir == old_dir)
+		if (!(dep = map_dirent(old_dir, old_dir->i_hpfs_dno, (char *)old_name, old_len, &dno, &qbh))) {
+			hpfs_unlock_creation(i->i_sb);
+			hpfs_error(i->i_sb, "lookup succeeded but map dirent failed at #2");
+			err = -ENOENT;
+			goto end1;
+		}
+
+	if ((r = hpfs_remove_dirent(old_dir, dno, dep, &qbh, 0))) {
+		hpfs_unlock_creation(i->i_sb);
+		hpfs_error(i->i_sb, "hpfs_rename: could not remove dirent");
+		err = r == 2 ? -ENOSPC : -EFSERROR;
+		goto end1;
+	}
+	hpfs_unlock_creation(i->i_sb);
+	
+	end:
+	i->i_hpfs_parent_dir = new_dir->i_ino;
+	if (S_ISDIR(i->i_mode)) {
+		new_dir->i_nlink++;
+		old_dir->i_nlink--;
+	}
+	if ((fnode = hpfs_map_fnode(i->i_sb, i->i_ino, &bh))) {
+		fnode->up = new_dir->i_ino;
+		fnode->len = new_len;
+		memcpy(fnode->name, new_name, new_len>15?15:new_len);
+		if (new_len < 15) memset(&fnode->name[new_len], 0, 15 - new_len);
+		mark_buffer_dirty(bh);
+		brelse(bh);
+	}
+	i->i_hpfs_conv = i->i_sb->s_hpfs_conv;
+	hpfs_decide_conv(i, (char *)new_name, new_len);
+	end1:
+	hpfs_unlock_3inodes(old_dir, new_dir, i);
+	return err;
+}
diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c
new file mode 100644
index 00000000000000..9079a28344261b
--- /dev/null
+++ b/fs/hpfs/super.c
@@ -0,0 +1,588 @@
+/*
+ *  linux/fs/hpfs/super.c
+ *
+ *  Mikulas Patocka (mikulas@artax.karlin.mff.cuni.cz), 1998-1999
+ *
+ *  mounting, unmounting, error handling
+ */
+
+#include <linux/string.h>
+#include "hpfs_fn.h"
+#include <linux/module.h>
+#include <linux/init.h>
+
+/* Mark the filesystem dirty, so that chkdsk checks it when os/2 booted */
+
+static void mark_dirty(struct super_block *s)
+{
+	if (s->s_hpfs_chkdsk && !(s->s_flags & MS_RDONLY)) {
+		struct buffer_head *bh;
+		struct hpfs_spare_block *sb;
+		if ((sb = hpfs_map_sector(s, 17, &bh, 0))) {
+			sb->dirty = 1;
+			sb->old_wrote = 0;
+			mark_buffer_dirty(bh);
+			brelse(bh);
+		}
+	}
+}
+
+/* Mark the filesystem clean (mark it dirty for chkdsk if chkdsk==2 or if there
+   were errors) */
+
+static void unmark_dirty(struct super_block *s)
+{
+	struct buffer_head *bh;
+	struct hpfs_spare_block *sb;
+	if (s->s_flags & MS_RDONLY) return;
+	if ((sb = hpfs_map_sector(s, 17, &bh, 0))) {
+		sb->dirty = s->s_hpfs_chkdsk > 1 - s->s_hpfs_was_error;
+		sb->old_wrote = s->s_hpfs_chkdsk >= 2 && !s->s_hpfs_was_error;
+		mark_buffer_dirty(bh);
+		brelse(bh);
+	}
+}
+
+/* Filesystem error... */
+
+#define ERR_BUF_SIZE 1024
+
+void hpfs_error(struct super_block *s, char *m,...)
+{
+	char *buf;
+	va_list l;
+	va_start(l, m);
+	if (!(buf = kmalloc(ERR_BUF_SIZE, GFP_KERNEL)))
+		printk("HPFS: No memory for error message '%s'\n",m);
+	else if (vsprintf(buf, m, l) >= ERR_BUF_SIZE)
+		printk("HPFS: Grrrr... Kernel memory corrupted ... going on, but it'll crash very soon :-(\n");
+	printk("HPFS: filesystem error: ");
+	if (buf) printk("%s", buf);
+	else printk("%s\n",m);
+	if (!s->s_hpfs_was_error) {
+		if (s->s_hpfs_err == 2) {
+			printk("; crashing the system because you wanted it\n");
+			mark_dirty(s);
+			panic("HPFS panic");
+		} else if (s->s_hpfs_err == 1) {
+			if (s->s_flags & MS_RDONLY) printk("; already mounted read-only\n");
+			else {
+				printk("; remounting read-only\n");
+				mark_dirty(s);
+				s->s_flags |= MS_RDONLY;
+			}
+		} else if (s->s_flags & MS_RDONLY) printk("; going on - but anything won't be destroyed because it's read-only\n");
+		else printk("; corrupted filesystem mounted read/write - your computer will explode within 20 seconds ... but you wanted it so!\n");
+	} else printk("\n");
+	if (buf) kfree(buf);
+	s->s_hpfs_was_error = 1;
+}
+
+/* 
+ * A little trick to detect cycles in many hpfs structures and don't let the
+ * kernel crash on corrupted filesystem. When first called, set c2 to 0.
+ *
+ * BTW. chkdsk doesn't detect cycles correctly. When I had 2 lost directories
+ * nested each in other, chkdsk locked up happilly.
+ */
+
+int hpfs_stop_cycles(struct super_block *s, int key, int *c1, int *c2,
+		char *msg)
+{
+	if (*c2 && *c1 == key) {
+		hpfs_error(s, "cycle detected on key %08x in %s", key, msg);
+		return 1;
+	}
+	(*c2)++;
+	if (!((*c2 - 1) & *c2)) *c1 = key;
+	return 0;
+}
+
+void hpfs_put_super(struct super_block *s)
+{
+	if (s->s_hpfs_cp_table) kfree(s->s_hpfs_cp_table);
+	if (s->s_hpfs_bmp_dir) kfree(s->s_hpfs_bmp_dir);
+	unmark_dirty(s);
+}
+
+unsigned hpfs_count_one_bitmap(struct super_block *s, secno secno)
+{
+	struct quad_buffer_head qbh;
+	unsigned *bits;
+	unsigned i, count;
+	if (!(bits = hpfs_map_4sectors(s, secno, &qbh, 4))) return 0;
+	count = 0;
+	for (i = 0; i < 2048 / sizeof(unsigned); i++) {
+		unsigned b; 
+		if (!bits[i]) continue;
+		for (b = bits[i]; b; b>>=1) count += b & 1;
+	}
+	hpfs_brelse4(&qbh);
+	return count;
+}
+
+static unsigned count_bitmaps(struct super_block *s)
+{
+	unsigned n, count, n_bands;
+	n_bands = (s->s_hpfs_fs_size + 0x3fff) >> 14;
+	count = 0;
+	for (n = 0; n < n_bands; n++)
+		count += hpfs_count_one_bitmap(s, s->s_hpfs_bmp_dir[n]);
+	return count;
+}
+
+int hpfs_statfs(struct super_block *s, struct statfs *buf)
+{
+	/*if (s->s_hpfs_n_free == -1) {*/
+		s->s_hpfs_n_free = count_bitmaps(s);
+		s->s_hpfs_n_free_dnodes = hpfs_count_one_bitmap(s, s->s_hpfs_dmap);
+	/*}*/
+	buf->f_type = s->s_magic;
+	buf->f_bsize = 512;
+	buf->f_blocks = s->s_hpfs_fs_size;
+	buf->f_bfree = s->s_hpfs_n_free;
+	buf->f_bavail = s->s_hpfs_n_free;
+	buf->f_files = s->s_hpfs_dirband_size / 4;
+	buf->f_ffree = s->s_hpfs_n_free_dnodes;
+	buf->f_namelen = 254;
+	return 0;
+}
+
+/* Super operations */
+
+static struct super_operations hpfs_sops =
+{
+        read_inode:	hpfs_read_inode,
+	delete_inode:	hpfs_delete_inode,
+	put_super:	hpfs_put_super,
+	statfs:		hpfs_statfs,
+	remount_fs:	hpfs_remount_fs,
+};
+
+/*
+ * A tiny parser for option strings, stolen from dosfs.
+ *
+ * Stolen again from read-only hpfs.
+ */
+
+int parse_opts(char *opts, uid_t *uid, gid_t *gid, umode_t *umask,
+	       int *lowercase, int *conv, int *eas, int *chk, int *errs,
+	       int *chkdsk, int *timeshift)
+{
+	char *p, *rhs;
+
+	if (!opts)
+		return 1;
+
+	/*printk("Parsing opts: '%s'\n",opts);*/
+
+	for (p = strtok(opts, ","); p != 0; p = strtok(0, ",")) {
+		if ((rhs = strchr(p, '=')) != 0)
+			*rhs++ = '\0';
+		if (!strcmp(p, "help")) return 2;
+		if (!strcmp(p, "uid")) {
+			if (!rhs || !*rhs)
+				return 0;
+			*uid = simple_strtoul(rhs, &rhs, 0);
+			if (*rhs)
+				return 0;
+		}
+		else if (!strcmp(p, "gid")) {
+			if (!rhs || !*rhs)
+				return 0;
+			*gid = simple_strtoul(rhs, &rhs, 0);
+			if (*rhs)
+				return 0;
+		}
+		else if (!strcmp(p, "umask")) {
+			if (!rhs || !*rhs)
+				return 0;
+			*umask = simple_strtoul(rhs, &rhs, 8);
+			if (*rhs)
+				return 0;
+		}
+		else if (!strcmp(p, "timeshift")) {
+			int m = 1;
+			if (!rhs || !*rhs)
+				return 0;
+			if (*rhs == '-') m = -1;
+			if (*rhs == '+' || *rhs == '-') rhs++;
+			*timeshift = simple_strtoul(rhs, &rhs, 0) * m;
+			if (*rhs)
+				return 0;
+		}
+		else if (!strcmp(p, "case")) {
+			if (!rhs || !*rhs)
+				return 0;
+			if (!strcmp(rhs, "lower"))
+				*lowercase = 1;
+			else if (!strcmp(rhs, "asis"))
+				*lowercase = 0;
+			else
+				return 0;
+		}
+		else if (!strcmp(p, "conv")) {
+			if (!rhs || !*rhs)
+				return 0;
+			if (!strcmp(rhs, "binary"))
+				*conv = CONV_BINARY;
+			else if (!strcmp(rhs, "text"))
+				*conv = CONV_TEXT;
+			else if (!strcmp(rhs, "auto"))
+				*conv = CONV_AUTO;
+			else
+				return 0;
+		}
+		else if (!strcmp(p, "check")) {
+			if (!rhs || !*rhs)
+				return 0;
+			if (!strcmp(rhs, "none"))
+				*chk = 0;
+			else if (!strcmp(rhs, "normal"))
+				*chk = 1;
+			else if (!strcmp(rhs, "strict"))
+				*chk = 2;
+			else
+				return 0;
+		}
+		else if (!strcmp(p, "errors")) {
+			if (!rhs || !*rhs)
+				return 0;
+			if (!strcmp(rhs, "continue"))
+				*errs = 0;
+			else if (!strcmp(rhs, "remount-ro"))
+				*errs = 1;
+			else if (!strcmp(rhs, "panic"))
+				*errs = 2;
+			else
+				return 0;
+		}
+		else if (!strcmp(p, "eas")) {
+			if (!rhs || !*rhs)
+				return 0;
+			if (!strcmp(rhs, "no"))
+				*eas = 0;
+			else if (!strcmp(rhs, "ro"))
+				*eas = 1;
+			else if (!strcmp(rhs, "rw"))
+				*eas = 2;
+			else
+				return 0;
+		}
+		else if (!strcmp(p, "chkdsk")) {
+			if (!rhs || !*rhs)
+				return 0;
+			if (!strcmp(rhs, "no"))
+				*chkdsk = 0;
+			else if (!strcmp(rhs, "errors"))
+				*chkdsk = 1;
+			else if (!strcmp(rhs, "always"))
+				*chkdsk = 2;
+			else
+				return 0;
+		}
+		else
+			return 0;
+	}
+	return 1;
+}
+
+static inline void hpfs_help(void)
+{
+	printk("\n\
+HPFS filesystem options:\n\
+      help              do not mount and display this text\n\
+      uid=xxx           set uid of files that don't have uid specified in eas\n\
+      gid=xxx           set gid of files that don't have gid specified in eas\n\
+      umask=xxx         set mode of files that don't have mode specified in eas\n\
+      case=lower        lowercase all files\n\
+      case=asis         do not lowercase files (default)\n\
+      conv=binary       do not convert CR/LF -> LF (default)\n\
+      conv=auto         convert only files with known text extensions\n\
+      conv=text         convert all files\n\
+      check=none        no fs checks - kernel may crash on corrupted filesystem\n\
+      check=normal      do some checks - it should not crash (default)\n\
+      check=strict      do extra time-consuming checks, used for debugging\n\
+      errors=continue   continue on errors\n\
+      errors=remount-ro remount read-only if errors found (default)\n\
+      errors=panic      panic on errors\n\
+      chkdsk=no         do not mark fs for chkdsking even if there were errors\n\
+      chkdsk=errors     mark fs dirty if errors found (default)\n\
+      chkdsk=always     always mark fs dirty - used for debugging\n\
+      eas=no            ignore extended attributes\n\
+      eas=ro            read but do not write extended attributes\n\
+      eas=rw            r/w eas => enables chmod, chown, mknod, ln -s (default)\n\
+      timeshift=nnn	add nnn seconds to file times\n\
+\n");
+}
+
+int hpfs_remount_fs(struct super_block *s, int *flags, char *data)
+{
+	uid_t uid;
+	gid_t gid;
+	umode_t umask;
+	int lowercase, conv, eas, chk, errs, chkdsk, timeshift;
+	int o;
+	
+	*flags |= MS_NOATIME;
+	
+	uid = s->s_hpfs_uid; gid = s->s_hpfs_gid;
+	umask = 0777 & ~s->s_hpfs_mode;
+	lowercase = s->s_hpfs_lowercase; conv = s->s_hpfs_conv;
+	eas = s->s_hpfs_eas; chk = s->s_hpfs_chk; chkdsk = s->s_hpfs_chkdsk;
+	errs = s->s_hpfs_err; timeshift = s->s_hpfs_timeshift;
+
+	if (!(o = parse_opts(data, &uid, &gid, &umask, &lowercase, &conv,
+	    &eas, &chk, &errs, &chkdsk, &timeshift))) {
+		printk("HPFS: bad mount options.\n");
+	    	return 1;
+	}
+	if (o == 2) {
+		hpfs_help();
+		return 1;
+	}
+	if (timeshift != s->s_hpfs_timeshift) {
+		printk("HPFS: timeshift can't be changed using remount.\n");
+		return 1;
+	}
+
+	unmark_dirty(s);
+
+	s->s_hpfs_uid = uid; s->s_hpfs_gid = gid;
+	s->s_hpfs_mode = 0777 & ~umask;
+	s->s_hpfs_lowercase = lowercase; s->s_hpfs_conv = conv;
+	s->s_hpfs_eas = eas; s->s_hpfs_chk = chk; s->s_hpfs_chkdsk = chkdsk;
+	s->s_hpfs_err = errs; s->s_hpfs_timeshift = timeshift;
+
+	if (!(*flags & MS_RDONLY)) mark_dirty(s);
+
+	return 0;
+}
+
+struct super_block *hpfs_read_super(struct super_block *s, void *options,
+				    int silent)
+{
+	kdev_t dev;
+	struct buffer_head *bh0, *bh1, *bh2;
+	struct hpfs_boot_block *bootblock;
+	struct hpfs_super_block *superblock;
+	struct hpfs_spare_block *spareblock;
+
+	uid_t uid;
+	gid_t gid;
+	umode_t umask;
+	int lowercase, conv, eas, chk, errs, chkdsk, timeshift;
+
+	dnode_secno root_dno;
+	struct hpfs_dirent *de = NULL;
+	struct quad_buffer_head qbh;
+
+	int o;
+
+	s->s_hpfs_bmp_dir = NULL;
+	s->s_hpfs_cp_table = NULL;
+
+	s->s_hpfs_creation_de_lock = s->s_hpfs_rd_inode = 0;
+	init_waitqueue_head(&s->s_hpfs_creation_de);
+	init_waitqueue_head(&s->s_hpfs_iget_q);
+
+	uid = current->uid;
+	gid = current->gid;
+	umask = current->fs->umask;
+	lowercase = 0;
+	conv = CONV_BINARY;
+	eas = 2;
+	chk = 1;
+	errs = 1;
+	chkdsk = 1;
+	timeshift = 0;
+
+	if (!(o = parse_opts(options, &uid, &gid, &umask, &lowercase, &conv,
+	    &eas, &chk, &errs, &chkdsk, &timeshift))) {
+		printk("HPFS: bad mount options.\n");
+		goto bail0;
+	}
+	if (o==2) {
+		hpfs_help();
+		goto bail0;
+	}
+
+	/*s->s_hpfs_mounting = 1;*/
+	dev = s->s_dev;
+	set_blocksize(dev, 512);
+	s->s_blocksize = 512;
+	s->s_blocksize_bits = 9;
+	s->s_hpfs_fs_size = -1;
+	if (!(bootblock = hpfs_map_sector(s, 0, &bh0, 0))) goto bail1;
+	if (!(superblock = hpfs_map_sector(s, 16, &bh1, 1))) goto bail2;
+	if (!(spareblock = hpfs_map_sector(s, 17, &bh2, 0))) goto bail3;
+
+	/* Check magics */
+	if (/*bootblock->magic != BB_MAGIC
+	    ||*/ superblock->magic != SB_MAGIC
+	    || spareblock->magic != SP_MAGIC) {
+		if (!silent) printk("HPFS: Bad magic ... probably not HPFS\n");
+		goto bail4;
+	}
+
+	/* Check version */
+	if (!(s->s_flags & MS_RDONLY) &&
+	      superblock->funcversion != 2 && superblock->funcversion != 3) {
+		printk("HPFS: Bad version %d,%d. Mount readonly to go around\n",
+			(int)superblock->version, (int)superblock->funcversion);
+		printk("HPFS: please try recent version of HPFS driver at http://artax.karlin.mff.cuni.cz/~mikulas/vyplody/hpfs/index-e.cgi and if it still can't understand this format, contact author - mikulas@artax.karlin.mff.cuni.cz\n");
+		goto bail4;
+	}
+
+	s->s_flags |= MS_NOATIME;
+
+	/* Fill superblock stuff */
+	s->s_magic = HPFS_SUPER_MAGIC;
+	s->s_op = &hpfs_sops;
+
+	s->s_hpfs_root = superblock->root;
+	s->s_hpfs_fs_size = superblock->n_sectors;
+	s->s_hpfs_bitmaps = superblock->bitmaps;
+	s->s_hpfs_dirband_start = superblock->dir_band_start;
+	s->s_hpfs_dirband_size = superblock->n_dir_band;
+	s->s_hpfs_dmap = superblock->dir_band_bitmap;
+	s->s_hpfs_uid = uid;
+	s->s_hpfs_gid = gid;
+	s->s_hpfs_mode = 0777 & ~umask;
+	s->s_hpfs_n_free = -1;
+	s->s_hpfs_n_free_dnodes = -1;
+	s->s_hpfs_lowercase = lowercase;
+	s->s_hpfs_conv = conv;
+	s->s_hpfs_eas = eas;
+	s->s_hpfs_chk = chk;
+	s->s_hpfs_chkdsk = chkdsk;
+	s->s_hpfs_err = errs;
+	s->s_hpfs_timeshift = timeshift;
+	s->s_hpfs_was_error = 0;
+	s->s_hpfs_cp_table = NULL;
+	s->s_hpfs_c_bitmap = -1;
+	s->s_hpfs_max_fwd_alloc = 0xffffff;
+	
+	/* Load bitmap directory */
+	if (!(s->s_hpfs_bmp_dir = hpfs_load_bitmap_directory(s, superblock->bitmaps)))
+		goto bail4;
+	
+	/* Check for general fs errors*/
+	if (spareblock->dirty && !spareblock->old_wrote) {
+		if (errs == 2) {
+			printk("HPFS: Improperly stopped, not mounted\n");
+			goto bail4;
+		}
+		hpfs_error(s, "improperly stopped");
+	}
+
+	if (!(s->s_flags & MS_RDONLY)) {
+		spareblock->dirty = 1;
+		spareblock->old_wrote = 0;
+		mark_buffer_dirty(bh2);
+	}
+
+	if (spareblock->hotfixes_used || spareblock->n_spares_used) {
+		if (errs >= 2) {
+			printk("HPFS: Hotfixes not supported here, try chkdsk\n");
+			mark_dirty(s);
+			goto bail4;
+		}
+		hpfs_error(s, "hotfixes not supported here, try chkdsk");
+		if (errs == 0) printk("HPFS: Proceeding, but your filesystem will be probably corrupted by this driver...\n");
+		else printk("HPFS: This driver may read bad files or crash when operating on disk with hotfixes.\n");
+	}
+	if (spareblock->n_dnode_spares != spareblock->n_dnode_spares_free) {
+		if (errs >= 2) {
+			printk("HPFS: Spare dnodes used, try chkdsk\n");
+			mark_dirty(s);
+			goto bail4;
+		}
+		hpfs_error(s, "warning: spare dnodes used, try chkdsk");
+		if (errs == 0) printk("HPFS: Proceeding, but your filesystem could be corrupted if you delete files or directories\n");
+	}
+	if (chk) {
+		unsigned a;
+		if (superblock->dir_band_end - superblock->dir_band_start + 1 != superblock->n_dir_band ||
+		    superblock->dir_band_end < superblock->dir_band_start || superblock->n_dir_band > 0x4000) {
+			hpfs_error(s, "dir band size mismatch: dir_band_start==%08x, dir_band_end==%08x, n_dir_band==%08x",
+				superblock->dir_band_start, superblock->dir_band_end, superblock->n_dir_band);
+			goto bail4;
+		}
+		a = s->s_hpfs_dirband_size;
+		s->s_hpfs_dirband_size = 0;
+		if (hpfs_chk_sectors(s, superblock->dir_band_start, superblock->n_dir_band, "dir_band") ||
+		    hpfs_chk_sectors(s, superblock->dir_band_bitmap, 4, "dir_band_bitmap") ||
+		    hpfs_chk_sectors(s, superblock->bitmaps, 4, "bitmaps")) {
+			mark_dirty(s);
+			goto bail4;
+		}
+		s->s_hpfs_dirband_size = a;
+	} else printk("HPFS: You really don't want any checks? You are crazy...\n");
+
+	/* Load code page table */
+	if (spareblock->n_code_pages)
+		if (!(s->s_hpfs_cp_table = hpfs_load_code_page(s, spareblock->code_page_dir)))
+			printk("HPFS: Warning: code page support is disabled\n");
+
+	brelse(bh2);
+	brelse(bh1);
+	brelse(bh0);
+
+	hpfs_lock_iget(s, 1);
+	s->s_root = d_alloc_root(iget(s, s->s_hpfs_root));
+	hpfs_unlock_iget(s);
+	if (!s->s_root || !s->s_root->d_inode) {
+		printk("HPFS: iget failed. Why???\n");
+		goto bail0;
+	}
+	hpfs_set_dentry_operations(s->s_root);
+
+	/*
+	 * find the root directory's . pointer & finish filling in the inode
+	 */
+
+	root_dno = hpfs_fnode_dno(s, s->s_hpfs_root);
+	if (root_dno)
+		de = map_dirent(s->s_root->d_inode, root_dno, "\001\001", 2, NULL, &qbh);
+	if (!root_dno || !de) hpfs_error(s, "unable to find root dir");
+	else {
+		s->s_root->d_inode->i_atime = local_to_gmt(s, de->read_date);
+		s->s_root->d_inode->i_mtime = local_to_gmt(s, de->write_date);
+		s->s_root->d_inode->i_ctime = local_to_gmt(s, de->creation_date);
+		s->s_root->d_inode->i_hpfs_ea_size = de->ea_size;
+		s->s_root->d_inode->i_hpfs_parent_dir = s->s_root->d_inode->i_ino;
+		if (s->s_root->d_inode->i_size == -1) s->s_root->d_inode->i_size = 2048;
+		if (s->s_root->d_inode->i_blocks == -1) s->s_root->d_inode->i_blocks = 5;
+	}
+	if (de) hpfs_brelse4(&qbh);
+
+	return s;
+
+bail4:	brelse(bh2);
+bail3:	brelse(bh1);
+bail2:	brelse(bh0);
+bail1:
+bail0:
+	if (s->s_hpfs_bmp_dir) kfree(s->s_hpfs_bmp_dir);
+	if (s->s_hpfs_cp_table) kfree(s->s_hpfs_cp_table);
+	return NULL;
+}
+
+DECLARE_FSTYPE_DEV(hpfs_fs_type, "hpfs", hpfs_read_super);
+
+static int __init init_hpfs_fs(void)
+{
+	return register_filesystem(&hpfs_fs_type);
+}
+
+static void __exit exit_hpfs_fs(void)
+{
+	unregister_filesystem(&hpfs_fs_type);
+}
+
+EXPORT_NO_SYMBOLS;
+
+module_init(init_hpfs_fs)
+module_exit(exit_hpfs_fs)
+MODULE_LICENSE("GPL");
diff --git a/fs/inode.c b/fs/inode.c
new file mode 100644
index 00000000000000..22c49f2e024421
--- /dev/null
+++ b/fs/inode.c
@@ -0,0 +1,1444 @@
+/*
+ * linux/fs/inode.c
+ *
+ * (C) 1997 Linus Torvalds
+ */
+
+#include <linux/config.h>
+#include <linux/fs.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/dcache.h>
+#include <linux/init.h>
+#include <linux/quotaops.h>
+#include <linux/slab.h>
+#include <linux/cache.h>
+#include <linux/swap.h>
+#include <linux/swapctl.h>
+#include <linux/prefetch.h>
+#include <linux/locks.h>
+
+/*
+ * New inode.c implementation.
+ *
+ * This implementation has the basic premise of trying
+ * to be extremely low-overhead and SMP-safe, yet be
+ * simple enough to be "obviously correct".
+ *
+ * Famous last words.
+ */
+
+/* inode dynamic allocation 1999, Andrea Arcangeli <andrea@suse.de> */
+
+/* #define INODE_PARANOIA 1 */
+/* #define INODE_DEBUG 1 */
+
+/*
+ * Inode lookup is no longer as critical as it used to be:
+ * most of the lookups are going to be through the dcache.
+ */
+#define I_HASHBITS	i_hash_shift
+#define I_HASHMASK	i_hash_mask
+
+static unsigned int i_hash_mask;
+static unsigned int i_hash_shift;
+
+/*
+ * Each inode can be on two separate lists. One is
+ * the hash list of the inode, used for lookups. The
+ * other linked list is the "type" list:
+ *  "in_use" - valid inode, i_count > 0, i_nlink > 0
+ *  "dirty"  - as "in_use" but also dirty
+ *  "unused" - valid inode, i_count = 0, no pages in the pagecache
+ *  "unused_pagecache" - valid inode, i_count = 0, data in the pagecache
+ *
+ * A "dirty" list is maintained for each super block,
+ * allowing for low-overhead inode sync() operations.
+ */
+
+static LIST_HEAD(inode_in_use);
+static LIST_HEAD(inode_unused);
+static LIST_HEAD(inode_unused_pagecache);
+static struct list_head *inode_hashtable;
+static LIST_HEAD(anon_hash_chain); /* for inodes with NULL i_sb */
+
+/*
+ * A simple spinlock to protect the list manipulations.
+ *
+ * NOTE! You also have to own the lock if you change
+ * the i_state of an inode while it is in use..
+ */
+static spinlock_t inode_lock = SPIN_LOCK_UNLOCKED;
+
+/*
+ * Statistics gathering..
+ */
+struct inodes_stat_t inodes_stat;
+
+static kmem_cache_t * inode_cachep;
+
+static struct inode *alloc_inode(struct super_block *sb)
+{
+	static struct address_space_operations empty_aops;
+	static struct inode_operations empty_iops;
+	static struct file_operations empty_fops;
+	struct inode *inode;
+
+	if (sb->s_op->alloc_inode)
+		inode = sb->s_op->alloc_inode(sb);
+	else {
+		inode = (struct inode *) kmem_cache_alloc(inode_cachep, SLAB_KERNEL);
+		/* will die */
+		if (inode)
+			memset(&inode->u, 0, sizeof(inode->u));
+	}
+
+	if (inode) {
+		struct address_space * const mapping = &inode->i_data;
+
+		inode->i_sb = sb;
+		inode->i_dev = sb->s_dev;
+		inode->i_blkbits = sb->s_blocksize_bits;
+		inode->i_flags = 0;
+		atomic_set(&inode->i_count, 1);
+		inode->i_sock = 0;
+		inode->i_op = &empty_iops;
+		inode->i_fop = &empty_fops;
+		inode->i_nlink = 1;
+		atomic_set(&inode->i_writecount, 0);
+		inode->i_size = 0;
+		inode->i_blocks = 0;
+		inode->i_bytes = 0;
+		inode->i_generation = 0;
+		memset(&inode->i_dquot, 0, sizeof(inode->i_dquot));
+		inode->i_pipe = NULL;
+		inode->i_bdev = NULL;
+		inode->i_cdev = NULL;
+
+		mapping->a_ops = &empty_aops;
+		mapping->host = inode;
+		mapping->gfp_mask = GFP_HIGHUSER;
+		inode->i_mapping = mapping;
+	}
+	return inode;
+}
+
+static void destroy_inode(struct inode *inode) 
+{
+	if (inode_has_buffers(inode))
+		BUG();
+	/* Reinitialise the waitqueue head because __wait_on_freeing_inode()
+	   may have left stale entries on it which it can't remove (since
+	   it knows we're freeing the inode right now */
+	init_waitqueue_head(&inode->i_wait);
+	if (inode->i_sb->s_op->destroy_inode)
+		inode->i_sb->s_op->destroy_inode(inode);
+	else
+		kmem_cache_free(inode_cachep, inode);
+}
+
+
+/*
+ * These are initializations that only need to be done
+ * once, because the fields are idempotent across use
+ * of the inode, so let the slab aware of that.
+ */
+void inode_init_once(struct inode *inode)
+{
+	memset(inode, 0, sizeof(*inode));
+	__inode_init_once(inode);
+}
+
+void __inode_init_once(struct inode *inode)
+{
+	init_waitqueue_head(&inode->i_wait);
+	INIT_LIST_HEAD(&inode->i_hash);
+	INIT_LIST_HEAD(&inode->i_data.clean_pages);
+	INIT_LIST_HEAD(&inode->i_data.dirty_pages);
+	INIT_LIST_HEAD(&inode->i_data.locked_pages);
+	INIT_LIST_HEAD(&inode->i_dentry);
+	INIT_LIST_HEAD(&inode->i_dirty_buffers);
+	INIT_LIST_HEAD(&inode->i_dirty_data_buffers);
+	INIT_LIST_HEAD(&inode->i_devices);
+	sema_init(&inode->i_sem, 1);
+	sema_init(&inode->i_zombie, 1);
+	init_rwsem(&inode->i_alloc_sem);
+	spin_lock_init(&inode->i_data.i_shared_lock);
+}
+
+static void init_once(void * foo, kmem_cache_t * cachep, unsigned long flags)
+{
+	struct inode * inode = (struct inode *) foo;
+
+	if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
+	    SLAB_CTOR_CONSTRUCTOR)
+		inode_init_once(inode);
+}
+
+/*
+ * Put the inode on the super block's dirty list.
+ *
+ * CAREFUL! We mark it dirty unconditionally, but
+ * move it onto the dirty list only if it is hashed.
+ * If it was not hashed, it will never be added to
+ * the dirty list even if it is later hashed, as it
+ * will have been marked dirty already.
+ *
+ * In short, make sure you hash any inodes _before_
+ * you start marking them dirty..
+ */
+ 
+/**
+ *	__mark_inode_dirty -	internal function
+ *	@inode: inode to mark
+ *	@flags: what kind of dirty (i.e. I_DIRTY_SYNC)
+ *	Mark an inode as dirty. Callers should use mark_inode_dirty or
+ *  	mark_inode_dirty_sync.
+ */
+ 
+void __mark_inode_dirty(struct inode *inode, int flags)
+{
+	struct super_block * sb = inode->i_sb;
+
+	if (!sb)
+		return;
+
+	/* Don't do this for I_DIRTY_PAGES - that doesn't actually dirty the inode itself */
+	if (flags & (I_DIRTY_SYNC | I_DIRTY_DATASYNC)) {
+		if (sb->s_op && sb->s_op->dirty_inode)
+			sb->s_op->dirty_inode(inode);
+	}
+
+	/* avoid the locking if we can */
+	if ((inode->i_state & flags) == flags)
+		return;
+
+	spin_lock(&inode_lock);
+	if ((inode->i_state & flags) != flags) {
+		inode->i_state |= flags;
+		/* Only add valid (ie hashed) inodes to the dirty list */
+		if (!(inode->i_state & (I_LOCK|I_FREEING|I_CLEAR)) &&
+		    !list_empty(&inode->i_hash)) {
+			list_del(&inode->i_list);
+			list_add(&inode->i_list, &sb->s_dirty);
+		}
+	}
+	spin_unlock(&inode_lock);
+}
+
+static void __wait_on_inode(struct inode * inode)
+{
+	DECLARE_WAITQUEUE(wait, current);
+
+	add_wait_queue(&inode->i_wait, &wait);
+repeat:
+	set_current_state(TASK_UNINTERRUPTIBLE);
+	if (inode->i_state & I_LOCK) {
+		schedule();
+		goto repeat;
+	}
+	remove_wait_queue(&inode->i_wait, &wait);
+	current->state = TASK_RUNNING;
+}
+
+static inline void wait_on_inode(struct inode *inode)
+{
+	if (inode->i_state & I_LOCK)
+		__wait_on_inode(inode);
+}
+
+/*
+ * If we try to find an inode in the inode hash while it is being deleted, we
+ * have to wait until the filesystem completes its deletion before reporting
+ * that it isn't found.  This is because iget will immediately call
+ * ->read_inode, and we want to be sure that evidence of the deletion is found
+ * by ->read_inode.
+ *
+ * Unlike the 2.6 version, this call call cannot return early, since inodes
+ * do not share wait queue. Therefore, we don't call remove_wait_queue(); it
+ * would be dangerous to do so since the inode may have already been freed, 
+ * and it's unnecessary, since the inode is definitely going to get freed.
+ *
+ * This is called with inode_lock held.
+ */
+static void __wait_on_freeing_inode(struct inode *inode)
+{
+        DECLARE_WAITQUEUE(wait, current);
+
+        add_wait_queue(&inode->i_wait, &wait);
+        set_current_state(TASK_UNINTERRUPTIBLE);
+        spin_unlock(&inode_lock);
+        schedule();
+
+        spin_lock(&inode_lock);
+}
+
+static inline void write_inode(struct inode *inode, int sync)
+{
+	if (inode->i_sb && inode->i_sb->s_op && inode->i_sb->s_op->write_inode && !is_bad_inode(inode))
+		inode->i_sb->s_op->write_inode(inode, sync);
+}
+
+static inline void __iget(struct inode * inode)
+{
+	if (atomic_read(&inode->i_count)) {
+		atomic_inc(&inode->i_count);
+		return;
+	}
+	atomic_inc(&inode->i_count);
+	if (!(inode->i_state & (I_DIRTY|I_LOCK))) {
+		list_del(&inode->i_list);
+		list_add(&inode->i_list, &inode_in_use);
+	}
+	inodes_stat.nr_unused--;
+}
+
+static inline void __refile_inode(struct inode *inode)
+{
+	struct list_head *to;
+
+	if (inode->i_state & I_FREEING)
+		return;
+	if (list_empty(&inode->i_hash))
+		return;
+
+	if (inode->i_state & I_DIRTY)
+		to = &inode->i_sb->s_dirty;
+	else if (atomic_read(&inode->i_count))
+		to = &inode_in_use;
+	else if (inode->i_data.nrpages)
+		to = &inode_unused_pagecache;
+	else
+		to = &inode_unused;
+	list_del(&inode->i_list);
+	list_add(&inode->i_list, to);
+}
+
+void refile_inode(struct inode *inode)
+{
+	if (!inode)
+		return;
+	spin_lock(&inode_lock);
+	if (!(inode->i_state & I_LOCK))
+		__refile_inode(inode);
+	spin_unlock(&inode_lock);
+}
+
+static inline void __sync_one(struct inode *inode, int sync)
+{
+	unsigned dirty;
+
+	list_del(&inode->i_list);
+	list_add(&inode->i_list, &inode->i_sb->s_locked_inodes);
+
+	if (inode->i_state & (I_LOCK|I_FREEING))
+		BUG();
+
+	/* Set I_LOCK, reset I_DIRTY */
+	dirty = inode->i_state & I_DIRTY;
+	inode->i_state |= I_LOCK;
+	inode->i_state &= ~I_DIRTY;
+	spin_unlock(&inode_lock);
+
+	filemap_fdatasync(inode->i_mapping);
+
+	/* Don't write the inode if only I_DIRTY_PAGES was set */
+	if (dirty & (I_DIRTY_SYNC | I_DIRTY_DATASYNC))
+		write_inode(inode, sync);
+
+	filemap_fdatawait(inode->i_mapping);
+
+	spin_lock(&inode_lock);
+	inode->i_state &= ~I_LOCK;
+	__refile_inode(inode);
+	wake_up(&inode->i_wait);
+}
+
+static inline void sync_one(struct inode *inode, int sync)
+{
+	while (inode->i_state & I_LOCK) {
+		__iget(inode);
+		spin_unlock(&inode_lock);
+		__wait_on_inode(inode);
+		iput(inode);
+		spin_lock(&inode_lock);
+	}
+
+	__sync_one(inode, sync);
+}
+
+static inline void sync_list(struct list_head *head)
+{
+	struct list_head * tmp;
+
+	while ((tmp = head->prev) != head) 
+		__sync_one(list_entry(tmp, struct inode, i_list), 0);
+}
+
+static inline void wait_on_locked(struct list_head *head)
+{
+	struct list_head * tmp;
+	while ((tmp = head->prev) != head) {
+		struct inode *inode = list_entry(tmp, struct inode, i_list);
+		__iget(inode);
+		spin_unlock(&inode_lock);
+		__wait_on_inode(inode);
+		iput(inode);
+		spin_lock(&inode_lock);
+	}
+}
+
+static inline int try_to_sync_unused_list(struct list_head *head, int nr_inodes)
+{
+	struct list_head *tmp = head;
+	struct inode *inode;
+
+	while (nr_inodes && (tmp = tmp->prev) != head) {
+		inode = list_entry(tmp, struct inode, i_list);
+
+		if (!atomic_read(&inode->i_count)) {
+			__sync_one(inode, 0);
+			nr_inodes--;
+
+			/* 
+			 * __sync_one moved the inode to another list,
+			 * so we have to start looking from the list head.
+			 */
+			tmp = head;
+		}
+	}
+
+	return nr_inodes;
+}
+
+void sync_inodes_sb(struct super_block *sb)
+{
+	spin_lock(&inode_lock);
+	while (!list_empty(&sb->s_dirty)||!list_empty(&sb->s_locked_inodes)) {
+		sync_list(&sb->s_dirty);
+		wait_on_locked(&sb->s_locked_inodes);
+	}
+	spin_unlock(&inode_lock);
+}
+
+/*
+ * Note:
+ * We don't need to grab a reference to superblock here. If it has non-empty
+ * ->s_dirty it's hadn't been killed yet and kill_super() won't proceed
+ * past sync_inodes_sb() until both ->s_dirty and ->s_locked_inodes are
+ * empty. Since __sync_one() regains inode_lock before it finally moves
+ * inode from superblock lists we are OK.
+ */
+
+void sync_unlocked_inodes(void)
+{
+	struct super_block * sb;
+	spin_lock(&inode_lock);
+	spin_lock(&sb_lock);
+	sb = sb_entry(super_blocks.next);
+	for (; sb != sb_entry(&super_blocks); sb = sb_entry(sb->s_list.next)) {
+		if (!list_empty(&sb->s_dirty)) {
+			spin_unlock(&sb_lock);
+			sync_list(&sb->s_dirty);
+			spin_lock(&sb_lock);
+		}
+	}
+	spin_unlock(&sb_lock);
+	spin_unlock(&inode_lock);
+}
+
+/*
+ * Find a superblock with inodes that need to be synced
+ */
+
+static struct super_block *get_super_to_sync(void)
+{
+	struct list_head *p;
+restart:
+	spin_lock(&inode_lock);
+	spin_lock(&sb_lock);
+	list_for_each(p, &super_blocks) {
+		struct super_block *s = list_entry(p,struct super_block,s_list);
+		if (list_empty(&s->s_dirty) && list_empty(&s->s_locked_inodes))
+			continue;
+		s->s_count++;
+		spin_unlock(&sb_lock);
+		spin_unlock(&inode_lock);
+		down_read(&s->s_umount);
+		if (!s->s_root) {
+			drop_super(s);
+			goto restart;
+		}
+		return s;
+	}
+	spin_unlock(&sb_lock);
+	spin_unlock(&inode_lock);
+	return NULL;
+}
+
+/**
+ *	sync_inodes
+ *	@dev: device to sync the inodes from.
+ *
+ *	sync_inodes goes through the super block's dirty list, 
+ *	writes them out, and puts them back on the normal list.
+ */
+
+void sync_inodes(kdev_t dev)
+{
+	struct super_block * s;
+
+	/*
+	 * Search the super_blocks array for the device(s) to sync.
+	 */
+	if (dev) {
+		if ((s = get_super(dev)) != NULL) {
+			sync_inodes_sb(s);
+			drop_super(s);
+		}
+	} else {
+		while ((s = get_super_to_sync()) != NULL) {
+			sync_inodes_sb(s);
+			drop_super(s);
+		}
+	}
+}
+
+static void try_to_sync_unused_inodes(void * arg)
+{
+	struct super_block * sb;
+	int nr_inodes = inodes_stat.nr_unused;
+
+	spin_lock(&inode_lock);
+	spin_lock(&sb_lock);
+	sb = sb_entry(super_blocks.next);
+	for (; nr_inodes && sb != sb_entry(&super_blocks); sb = sb_entry(sb->s_list.next)) {
+		if (list_empty(&sb->s_dirty))
+			continue;
+		spin_unlock(&sb_lock);
+		nr_inodes = try_to_sync_unused_list(&sb->s_dirty, nr_inodes);
+		spin_lock(&sb_lock);
+	}
+	spin_unlock(&sb_lock);
+	spin_unlock(&inode_lock);
+}
+
+static struct tq_struct unused_inodes_flush_task;
+
+/**
+ *	write_inode_now	-	write an inode to disk
+ *	@inode: inode to write to disk
+ *	@sync: whether the write should be synchronous or not
+ *
+ *	This function commits an inode to disk immediately if it is
+ *	dirty. This is primarily needed by knfsd.
+ */
+ 
+void write_inode_now(struct inode *inode, int sync)
+{
+	struct super_block * sb = inode->i_sb;
+
+	if (sb) {
+		spin_lock(&inode_lock);
+		while (inode->i_state & I_DIRTY)
+			sync_one(inode, sync);
+		spin_unlock(&inode_lock);
+		if (sync)
+			wait_on_inode(inode);
+	}
+	else
+		printk(KERN_ERR "write_inode_now: no super block\n");
+}
+
+/**
+ * generic_osync_inode - flush all dirty data for a given inode to disk
+ * @inode: inode to write
+ * @datasync: if set, don't bother flushing timestamps
+ *
+ * This can be called by file_write functions for files which have the
+ * O_SYNC flag set, to flush dirty writes to disk.  
+ */
+
+int generic_osync_inode(struct inode *inode, int what)
+{
+	int err = 0, err2 = 0, need_write_inode_now = 0;
+	
+	/* 
+	 * WARNING
+	 *
+	 * Currently, the filesystem write path does not pass the
+	 * filp down to the low-level write functions.  Therefore it
+	 * is impossible for (say) __block_commit_write to know if
+	 * the operation is O_SYNC or not.
+	 *
+	 * Ideally, O_SYNC writes would have the filesystem call
+	 * ll_rw_block as it went to kick-start the writes, and we
+	 * could call osync_inode_buffers() here to wait only for
+	 * those IOs which have already been submitted to the device
+	 * driver layer.  As it stands, if we did this we'd not write
+	 * anything to disk since our writes have not been queued by
+	 * this point: they are still on the dirty LRU.
+	 * 
+	 * So, currently we will call fsync_inode_buffers() instead,
+	 * to flush _all_ dirty buffers for this inode to disk on 
+	 * every O_SYNC write, not just the synchronous I/Os.  --sct
+	 */
+
+	if (what & OSYNC_METADATA)
+		err = fsync_inode_buffers(inode);
+	if (what & OSYNC_DATA)
+		err2 = fsync_inode_data_buffers(inode);
+	if (!err)
+		err = err2;
+
+	spin_lock(&inode_lock);
+	if ((inode->i_state & I_DIRTY) &&
+	    ((what & OSYNC_INODE) || (inode->i_state & I_DIRTY_DATASYNC)))
+		need_write_inode_now = 1;
+	spin_unlock(&inode_lock);
+
+	if (need_write_inode_now)
+		write_inode_now(inode, 1);
+	else
+		wait_on_inode(inode);
+
+	return err;
+}
+
+/**
+ * clear_inode - clear an inode
+ * @inode: inode to clear
+ *
+ * This is called by the filesystem to tell us
+ * that the inode is no longer useful. We just
+ * terminate it with extreme prejudice.
+ */
+ 
+void clear_inode(struct inode *inode)
+{
+	invalidate_inode_buffers(inode);
+       
+	if (inode->i_data.nrpages)
+		BUG();
+	if (!(inode->i_state & I_FREEING))
+		BUG();
+	if (inode->i_state & I_CLEAR)
+		BUG();
+	wait_on_inode(inode);
+	DQUOT_DROP(inode);
+	if (inode->i_sb && inode->i_sb->s_op && inode->i_sb->s_op->clear_inode)
+		inode->i_sb->s_op->clear_inode(inode);
+	if (inode->i_bdev)
+		bd_forget(inode);
+	else if (inode->i_cdev) {
+		cdput(inode->i_cdev);
+		inode->i_cdev = NULL;
+	}
+	inode->i_state = I_CLEAR;
+}
+
+/*
+ * Dispose-list gets a local list with local inodes in it, so it doesn't
+ * need to worry about list corruption and SMP locks.
+ */
+static void dispose_list(struct list_head *head)
+{
+	int nr_disposed = 0;
+
+	while (!list_empty(head)) {
+		struct inode *inode;
+
+		inode = list_entry(head->next, struct inode, i_list);
+		list_del(&inode->i_list);
+
+		if (inode->i_data.nrpages)
+			truncate_inode_pages(&inode->i_data, 0);
+		clear_inode(inode);
+		spin_lock(&inode_lock);
+		list_del(&inode->i_hash);
+		INIT_LIST_HEAD(&inode->i_hash);
+		spin_unlock(&inode_lock);
+		wake_up(&inode->i_wait);
+		destroy_inode(inode);
+		nr_disposed++;
+	}
+	spin_lock(&inode_lock);
+	inodes_stat.nr_inodes -= nr_disposed;
+	spin_unlock(&inode_lock);
+}
+
+/*
+ * Invalidate all inodes for a device.
+ */
+static int invalidate_list(struct list_head *head, struct super_block * sb, struct list_head * dispose)
+{
+	struct list_head *next;
+	int busy = 0, count = 0;
+
+	next = head->next;
+	for (;;) {
+		struct list_head * tmp = next;
+		struct inode * inode;
+
+		next = next->next;
+		if (tmp == head)
+			break;
+		inode = list_entry(tmp, struct inode, i_list);
+		if (inode->i_sb != sb)
+			continue;
+		invalidate_inode_buffers(inode);
+		if (!atomic_read(&inode->i_count)) {
+			list_del_init(&inode->i_hash);
+			list_del(&inode->i_list);
+			list_add(&inode->i_list, dispose);
+			inode->i_state |= I_FREEING;
+			count++;
+			continue;
+		}
+		busy = 1;
+	}
+	/* only unused inodes may be cached with i_count zero */
+	inodes_stat.nr_unused -= count;
+	return busy;
+}
+
+/*
+ * This is a two-stage process. First we collect all
+ * offending inodes onto the throw-away list, and in
+ * the second stage we actually dispose of them. This
+ * is because we don't want to sleep while messing
+ * with the global lists..
+ */
+ 
+/**
+ *	invalidate_inodes	- discard the inodes on a device
+ *	@sb: superblock
+ *
+ *	Discard all of the inodes for a given superblock. If the discard
+ *	fails because there are busy inodes then a non zero value is returned.
+ *	If the discard is successful all the inodes have been discarded.
+ */
+ 
+int invalidate_inodes(struct super_block * sb)
+{
+	int busy;
+	LIST_HEAD(throw_away);
+
+	spin_lock(&inode_lock);
+	busy = invalidate_list(&inode_in_use, sb, &throw_away);
+	busy |= invalidate_list(&inode_unused, sb, &throw_away);
+	busy |= invalidate_list(&inode_unused_pagecache, sb, &throw_away);
+	busy |= invalidate_list(&sb->s_dirty, sb, &throw_away);
+	busy |= invalidate_list(&sb->s_locked_inodes, sb, &throw_away);
+	spin_unlock(&inode_lock);
+
+	dispose_list(&throw_away);
+
+	return busy;
+}
+ 
+int invalidate_device(kdev_t dev, int do_sync)
+{
+	struct super_block *sb;
+	int res;
+
+	if (do_sync)
+		fsync_dev(dev);
+
+	res = 0;
+	sb = get_super(dev);
+	if (sb) {
+		/*
+		 * no need to lock the super, get_super holds the
+		 * read semaphore so the filesystem cannot go away
+		 * under us (->put_super runs with the write lock
+		 * hold).
+		 */
+		shrink_dcache_sb(sb);
+		res = invalidate_inodes(sb);
+		drop_super(sb);
+	}
+	invalidate_buffers(dev);
+	return res;
+}
+
+
+/*
+ * This is called with the inode lock held. It searches
+ * the in-use for freeable inodes, which are moved to a
+ * temporary list and then placed on the unused list by
+ * dispose_list. 
+ *
+ * We don't expect to have to call this very often.
+ *
+ * We leave the inode in the inode hash table until *after* 
+ * the filesystem's ->delete_inode (in dispose_list) completes.
+ * This ensures that an iget (such as nfsd might instigate) will 
+ * always find up-to-date information either in the hash or on disk.
+ *
+ * I_FREEING is set so that no-one will take a new reference
+ * to the inode while it is being deleted.
+ *
+ * N.B. The spinlock is released during the call to
+ *      dispose_list.
+ */
+#define CAN_UNUSE(inode) \
+	((((inode)->i_state | (inode)->i_data.nrpages) == 0)  && \
+	 !inode_has_buffers(inode))
+#define INODE(entry)	(list_entry(entry, struct inode, i_list))
+
+void prune_icache(int goal)
+{
+	LIST_HEAD(list);
+	struct list_head *entry, *freeable = &list;
+	int count;
+#ifdef CONFIG_HIGHMEM
+	int avg_pages;
+#endif
+	struct inode * inode;
+
+	spin_lock(&inode_lock);
+
+	count = 0;
+	entry = inode_unused.prev;
+	while (entry != &inode_unused)
+	{
+		struct list_head *tmp = entry;
+
+		entry = entry->prev;
+		inode = INODE(tmp);
+		if (inode->i_state & (I_FREEING|I_CLEAR|I_LOCK))
+			continue;
+		if (!CAN_UNUSE(inode))
+			continue;
+		if (atomic_read(&inode->i_count))
+			continue;
+		list_del(tmp);
+		list_add(tmp, freeable);
+		inode->i_state |= I_FREEING;
+		count++;
+		if (--goal <= 0)
+			break;
+	}
+	inodes_stat.nr_unused -= count;
+	spin_unlock(&inode_lock);
+
+	dispose_list(freeable);
+
+	/* 
+	 * If we didn't freed enough clean inodes schedule
+	 * a sync of the dirty inodes, we cannot do it
+	 * from here or we're either synchronously dogslow
+	 * or we deadlock with oom.
+	 */
+	if (goal > 0)
+		schedule_task(&unused_inodes_flush_task);
+
+#ifdef CONFIG_HIGHMEM
+	/*
+	 * On highmem machines it is possible to have low memory
+	 * filled with inodes that cannot be reclaimed because they
+	 * have page cache pages in highmem attached to them.
+	 * This could deadlock the system if the memory used by
+	 * inodes is significant compared to the amount of freeable
+	 * low memory.  In that case we forcefully remove the page
+	 * cache pages from the inodes we want to reclaim.
+	 *
+	 * Note that this loop doesn't actually reclaim the inodes;
+	 * once the last pagecache pages belonging to the inode is
+	 * gone it will be placed on the inode_unused list and the
+	 * loop above will prune it the next time prune_icache() is
+	 * called.
+	 */
+	if (goal <= 0)
+		return;
+	if (inodes_stat.nr_unused * sizeof(struct inode) * 10 <
+				freeable_lowmem() * PAGE_SIZE)
+		return;
+
+	wakeup_bdflush();
+
+	avg_pages = page_cache_size;
+	avg_pages -= atomic_read(&buffermem_pages) + swapper_space.nrpages;
+	avg_pages = avg_pages / (inodes_stat.nr_inodes + 1);
+	spin_lock(&inode_lock);
+	while (goal-- > 0) {
+		if (list_empty(&inode_unused_pagecache))
+			break;
+		entry = inode_unused_pagecache.prev;
+		list_del(entry);
+		list_add(entry, &inode_unused_pagecache);
+
+		inode = INODE(entry);
+		/* Don't nuke inodes with lots of page cache attached. */
+		if (inode->i_mapping->nrpages > 5 * avg_pages)
+			continue;
+		/* Because of locking we grab the inode and unlock the list .*/
+		if (inode->i_state & I_LOCK)
+			continue;
+		inode->i_state |= I_LOCK;
+		spin_unlock(&inode_lock);
+
+		/*
+		 * If the inode has clean pages only, we can free all its
+		 * pagecache memory; the inode will automagically be refiled
+		 * onto the unused_list.  The wakeup_bdflush above makes
+		 * sure that all inodes become clean eventually.
+		 */
+		if (list_empty(&inode->i_mapping->dirty_pages) &&
+				!inode_has_buffers(inode))
+			invalidate_inode_pages(inode);
+
+		/* Release the inode again. */
+		spin_lock(&inode_lock);
+		inode->i_state &= ~I_LOCK;
+		wake_up(&inode->i_wait);
+	}
+	spin_unlock(&inode_lock);
+#endif /* CONFIG_HIGHMEM */
+}
+
+int shrink_icache_memory(int priority, int gfp_mask)
+{
+	int count = 0;
+
+	/*
+	 * Nasty deadlock avoidance..
+	 *
+	 * We may hold various FS locks, and we don't
+	 * want to recurse into the FS that called us
+	 * in clear_inode() and friends..
+	 */
+	if (!(gfp_mask & __GFP_FS))
+		return 0;
+
+	count = inodes_stat.nr_unused / priority;
+
+	prune_icache(count);
+	return kmem_cache_shrink(inode_cachep);
+}
+
+/*
+ * Called with the inode lock held.
+ * NOTE: we are not increasing the inode-refcount, you must call __iget()
+ * by hand after calling find_inode now! This simplifies iunique and won't
+ * add any additional branch in the common code.
+ */
+static struct inode * find_inode(struct super_block * sb, unsigned long ino, struct list_head *head, find_inode_t find_actor, void *opaque)
+{
+	struct list_head *tmp;
+	struct inode * inode;
+
+repeat:
+	tmp = head;
+	for (;;) {
+		tmp = tmp->next;
+		inode = NULL;
+		if (tmp == head)
+			break;
+		inode = list_entry(tmp, struct inode, i_hash);
+		if (inode->i_ino != ino)
+			continue;
+		if (inode->i_sb != sb)
+			continue;
+		if (find_actor && !find_actor(inode, ino, opaque))
+			continue;
+		if (inode->i_state & (I_FREEING|I_CLEAR)) {
+			__wait_on_freeing_inode(inode);
+			goto repeat;
+		}
+		break;
+	}
+	return inode;
+}
+
+/**
+ *	new_inode 	- obtain an inode
+ *	@sb: superblock
+ *
+ *	Allocates a new inode for given superblock.
+ */
+ 
+struct inode * new_inode(struct super_block *sb)
+{
+	static unsigned long last_ino;
+	struct inode * inode;
+
+	spin_lock_prefetch(&inode_lock);
+	
+	inode = alloc_inode(sb);
+	if (inode) {
+		spin_lock(&inode_lock);
+		inodes_stat.nr_inodes++;
+		list_add(&inode->i_list, &inode_in_use);
+		inode->i_ino = ++last_ino;
+		inode->i_state = 0;
+		spin_unlock(&inode_lock);
+	}
+	return inode;
+}
+
+void unlock_new_inode(struct inode *inode)
+{
+	/*
+	 * This is special!  We do not need the spinlock
+	 * when clearing I_LOCK, because we're guaranteed
+	 * that nobody else tries to do anything about the
+	 * state of the inode when it is locked, as we
+	 * just created it (so there can be no old holders
+	 * that haven't tested I_LOCK).
+	 */
+	inode->i_state &= ~(I_LOCK|I_NEW);
+	wake_up(&inode->i_wait);
+}
+
+/*
+ * This is called without the inode lock held.. Be careful.
+ *
+ * We no longer cache the sb_flags in i_flags - see fs.h
+ *	-- rmk@arm.uk.linux.org
+ */
+static struct inode * get_new_inode(struct super_block *sb, unsigned long ino, struct list_head *head, find_inode_t find_actor, void *opaque)
+{
+	struct inode * inode;
+
+	inode = alloc_inode(sb);
+	if (inode) {
+		struct inode * old;
+
+		spin_lock(&inode_lock);
+		/* We released the lock, so.. */
+		old = find_inode(sb, ino, head, find_actor, opaque);
+		if (!old) {
+			inodes_stat.nr_inodes++;
+			list_add(&inode->i_list, &inode_in_use);
+			list_add(&inode->i_hash, head);
+			inode->i_ino = ino;
+			inode->i_state = I_LOCK|I_NEW;
+			spin_unlock(&inode_lock);
+
+			/*
+			 * Return the locked inode with I_NEW set, the
+			 * caller is responsible for filling in the contents
+			 */
+			return inode;
+		}
+
+		/*
+		 * Uhhuh, somebody else created the same inode under
+		 * us. Use the old inode instead of the one we just
+		 * allocated.
+		 */
+		__iget(old);
+		spin_unlock(&inode_lock);
+		destroy_inode(inode);
+		inode = old;
+		wait_on_inode(inode);
+	}
+	return inode;
+}
+
+static inline unsigned long hash(struct super_block *sb, unsigned long i_ino)
+{
+	unsigned long tmp = i_ino + ((unsigned long) sb / L1_CACHE_BYTES);
+	tmp = tmp + (tmp >> I_HASHBITS);
+	return tmp & I_HASHMASK;
+}
+
+/* Yeah, I know about quadratic hash. Maybe, later. */
+
+/**
+ *	iunique - get a unique inode number
+ *	@sb: superblock
+ *	@max_reserved: highest reserved inode number
+ *
+ *	Obtain an inode number that is unique on the system for a given
+ *	superblock. This is used by file systems that have no natural
+ *	permanent inode numbering system. An inode number is returned that
+ *	is higher than the reserved limit but unique.
+ *
+ *	BUGS:
+ *	With a large number of inodes live on the file system this function
+ *	currently becomes quite slow.
+ */
+ 
+ino_t iunique(struct super_block *sb, ino_t max_reserved)
+{
+	static ino_t counter = 0;
+	struct inode *inode;
+	struct list_head * head;
+	ino_t res;
+	spin_lock(&inode_lock);
+retry:
+	if (counter > max_reserved) {
+		head = inode_hashtable + hash(sb,counter);
+		inode = find_inode(sb, res = counter++, head, NULL, NULL);
+		if (!inode) {
+			spin_unlock(&inode_lock);
+			return res;
+		}
+	} else {
+		counter = max_reserved + 1;
+	}
+	goto retry;
+	
+}
+
+/**
+ *	ilookup - search for an inode in the inode cache
+ *	@sb:         super block of file system to search
+ *	@ino:        inode number to search for
+ *
+ *	If the inode is in the cache, the inode is returned with an
+ *	incremented reference count.
+ *
+ *	Otherwise, %NULL is returned.
+ *
+ *	This is almost certainly not the function you are looking for.
+ *	If you think you need to use this, consult an expert first.
+ */
+struct inode *ilookup(struct super_block *sb, unsigned long ino)
+{
+	struct list_head * head = inode_hashtable + hash(sb,ino);
+	struct inode * inode;
+
+	spin_lock(&inode_lock);
+	inode = find_inode(sb, ino, head, NULL, NULL);
+	if (inode) {
+		__iget(inode);
+		spin_unlock(&inode_lock);
+		wait_on_inode(inode);
+		return inode;
+	}
+	spin_unlock(&inode_lock);
+
+	return inode;
+}
+
+struct inode *igrab(struct inode *inode)
+{
+	spin_lock(&inode_lock);
+	if (!(inode->i_state & I_FREEING))
+		__iget(inode);
+	else
+		/*
+		 * Handle the case where s_op->clear_inode is not been
+		 * called yet, and somebody is calling igrab
+		 * while the inode is getting freed.
+		 */
+		inode = NULL;
+	spin_unlock(&inode_lock);
+	return inode;
+}
+
+struct inode *iget4_locked(struct super_block *sb, unsigned long ino, find_inode_t find_actor, void *opaque)
+{
+	struct list_head * head = inode_hashtable + hash(sb,ino);
+	struct inode * inode;
+
+	spin_lock(&inode_lock);
+	inode = find_inode(sb, ino, head, find_actor, opaque);
+	if (inode) {
+		__iget(inode);
+		spin_unlock(&inode_lock);
+		wait_on_inode(inode);
+		return inode;
+	}
+	spin_unlock(&inode_lock);
+
+	/*
+	 * get_new_inode() will do the right thing, re-trying the search
+	 * in case it had to block at any point.
+	 */
+	return get_new_inode(sb, ino, head, find_actor, opaque);
+}
+
+/**
+ *	insert_inode_hash - hash an inode
+ *	@inode: unhashed inode
+ *
+ *	Add an inode to the inode hash for this superblock. If the inode
+ *	has no superblock it is added to a separate anonymous chain.
+ */
+ 
+void insert_inode_hash(struct inode *inode)
+{
+	struct list_head *head = &anon_hash_chain;
+	if (inode->i_sb)
+		head = inode_hashtable + hash(inode->i_sb, inode->i_ino);
+	spin_lock(&inode_lock);
+	list_add(&inode->i_hash, head);
+	spin_unlock(&inode_lock);
+}
+
+/**
+ *	remove_inode_hash - remove an inode from the hash
+ *	@inode: inode to unhash
+ *
+ *	Remove an inode from the superblock or anonymous hash.
+ */
+ 
+void remove_inode_hash(struct inode *inode)
+{
+	spin_lock(&inode_lock);
+	list_del(&inode->i_hash);
+	INIT_LIST_HEAD(&inode->i_hash);
+	spin_unlock(&inode_lock);
+}
+
+/**
+ *	iput	- put an inode 
+ *	@inode: inode to put
+ *
+ *	Puts an inode, dropping its usage count. If the inode use count hits
+ *	zero the inode is also then freed and may be destroyed.
+ */
+ 
+void iput(struct inode *inode)
+{
+	if (inode) {
+		struct super_block *sb = inode->i_sb;
+		struct super_operations *op = NULL;
+
+		if (inode->i_state == I_CLEAR)
+			BUG();
+
+		if (sb && sb->s_op)
+			op = sb->s_op;
+		if (op && op->put_inode)
+			op->put_inode(inode);
+
+		if (!atomic_dec_and_lock(&inode->i_count, &inode_lock))
+			return;
+
+		if (!inode->i_nlink) {
+			list_del(&inode->i_list);
+			INIT_LIST_HEAD(&inode->i_list);
+			inode->i_state|=I_FREEING;
+			inodes_stat.nr_inodes--;
+			spin_unlock(&inode_lock);
+
+			if (inode->i_data.nrpages)
+				truncate_inode_pages(&inode->i_data, 0);
+
+			if (op && op->delete_inode) {
+				void (*delete)(struct inode *) = op->delete_inode;
+				if (!is_bad_inode(inode))
+					DQUOT_INIT(inode);
+				/* s_op->delete_inode internally recalls clear_inode() */
+				delete(inode);
+			} else
+				clear_inode(inode);
+			spin_lock(&inode_lock);
+			list_del(&inode->i_hash);
+			INIT_LIST_HEAD(&inode->i_hash);
+			spin_unlock(&inode_lock);
+			wake_up(&inode->i_wait);
+			if (inode->i_state != I_CLEAR)
+				BUG();
+		} else {
+			if (!list_empty(&inode->i_hash)) {
+				if (!(inode->i_state & (I_DIRTY|I_LOCK))) 
+					__refile_inode(inode);
+				inodes_stat.nr_unused++;
+				spin_unlock(&inode_lock);
+				if (!sb || (sb->s_flags & MS_ACTIVE))
+					return;
+				write_inode_now(inode, 1);
+				spin_lock(&inode_lock);
+				inodes_stat.nr_unused--;
+				list_del_init(&inode->i_hash);
+			}
+			list_del_init(&inode->i_list);
+			inode->i_state|=I_FREEING;
+			inodes_stat.nr_inodes--;
+			spin_unlock(&inode_lock);
+			if (inode->i_data.nrpages)
+				truncate_inode_pages(&inode->i_data, 0);
+			clear_inode(inode);
+		}
+		destroy_inode(inode);
+	}
+}
+
+void force_delete(struct inode *inode)
+{
+	/*
+	 * Kill off unused inodes ... iput() will unhash and
+	 * delete the inode if we set i_nlink to zero.
+	 */
+	if (atomic_read(&inode->i_count) == 1)
+		inode->i_nlink = 0;
+}
+
+/**
+ *	bmap	- find a block number in a file
+ *	@inode: inode of file
+ *	@block: block to find
+ *
+ *	Returns the block number on the device holding the inode that
+ *	is the disk block number for the block of the file requested.
+ *	That is, asked for block 4 of inode 1 the function will return the
+ *	disk block relative to the disk start that holds that block of the 
+ *	file.
+ */
+ 
+int bmap(struct inode * inode, int block)
+{
+	int res = 0;
+	if (inode->i_mapping->a_ops->bmap)
+		res = inode->i_mapping->a_ops->bmap(inode->i_mapping, block);
+	return res;
+}
+
+/*
+ * Initialize the hash tables.
+ */
+void __init inode_init(unsigned long mempages)
+{
+	struct list_head *head;
+	unsigned long order;
+	unsigned int nr_hash;
+	int i;
+
+	mempages >>= (14 - PAGE_SHIFT);
+	mempages *= sizeof(struct list_head);
+	for (order = 0; ((1UL << order) << PAGE_SHIFT) < mempages; order++)
+		;
+
+	do {
+		unsigned long tmp;
+
+		nr_hash = (1UL << order) * PAGE_SIZE /
+			sizeof(struct list_head);
+		i_hash_mask = (nr_hash - 1);
+
+		tmp = nr_hash;
+		i_hash_shift = 0;
+		while ((tmp >>= 1UL) != 0UL)
+			i_hash_shift++;
+
+		inode_hashtable = (struct list_head *)
+			__get_free_pages(GFP_ATOMIC, order);
+	} while (inode_hashtable == NULL && --order >= 0);
+
+	printk(KERN_INFO "Inode cache hash table entries: %d (order: %ld, %ld bytes)\n",
+			nr_hash, order, (PAGE_SIZE << order));
+
+	if (!inode_hashtable)
+		panic("Failed to allocate inode hash table\n");
+
+	head = inode_hashtable;
+	i = nr_hash;
+	do {
+		INIT_LIST_HEAD(head);
+		head++;
+		i--;
+	} while (i);
+
+	/* inode slab cache */
+	inode_cachep = kmem_cache_create("inode_cache", sizeof(struct inode),
+					 0, SLAB_HWCACHE_ALIGN, init_once,
+					 NULL);
+	if (!inode_cachep)
+		panic("cannot create inode slab cache");
+
+	unused_inodes_flush_task.routine = try_to_sync_unused_inodes;
+}
+
+/**
+ *	update_atime	-	update the access time
+ *	@inode: inode accessed
+ *
+ *	Update the accessed time on an inode and mark it for writeback.
+ *	This function automatically handles read only file systems and media,
+ *	as well as the "noatime" flag and inode specific "noatime" markers.
+ */
+ 
+void update_atime (struct inode *inode)
+{
+	if (inode->i_atime == CURRENT_TIME)
+		return;
+	if (IS_NOATIME(inode))
+		return;
+	if (IS_NODIRATIME(inode) && S_ISDIR(inode->i_mode)) 
+		return;
+	if (IS_RDONLY(inode)) 
+		return;
+	inode->i_atime = CURRENT_TIME;
+	mark_inode_dirty_sync (inode);
+}
+
+/**
+ *	update_mctime	-	update the mtime and ctime
+ *	@inode: inode accessed
+ *
+ *	Update the modified and changed times on an inode for writes to special
+ *	files such as fifos.  No change is forced if the timestamps are already
+ *	up-to-date or if the filesystem is readonly.
+ */
+ 
+void update_mctime (struct inode *inode)
+{
+	if (inode->i_mtime == CURRENT_TIME && inode->i_ctime == CURRENT_TIME)
+		return;
+	if (IS_RDONLY(inode))
+		return;
+	inode->i_ctime = inode->i_mtime = CURRENT_TIME;
+	mark_inode_dirty (inode);
+}
+
+
+/*
+ *	Quota functions that want to walk the inode lists..
+ */
+#ifdef CONFIG_QUOTA
+
+/* Functions back in dquot.c */
+void put_dquot_list(struct list_head *);
+int remove_inode_dquot_ref(struct inode *, short, struct list_head *);
+
+void remove_dquot_ref(struct super_block *sb, short type)
+{
+	struct inode *inode;
+	struct list_head *act_head;
+	LIST_HEAD(tofree_head);
+
+	if (!sb->dq_op)
+		return;	/* nothing to do */
+	/* We have to be protected against other CPUs */
+	lock_kernel();		/* This lock is for quota code */
+	spin_lock(&inode_lock);	/* This lock is for inodes code */
+ 
+	list_for_each(act_head, &inode_in_use) {
+		inode = list_entry(act_head, struct inode, i_list);
+		if (inode->i_sb == sb && IS_QUOTAINIT(inode))
+			remove_inode_dquot_ref(inode, type, &tofree_head);
+	}
+	list_for_each(act_head, &inode_unused) {
+		inode = list_entry(act_head, struct inode, i_list);
+		if (inode->i_sb == sb && IS_QUOTAINIT(inode))
+			remove_inode_dquot_ref(inode, type, &tofree_head);
+	}
+	list_for_each(act_head, &inode_unused_pagecache) {
+		inode = list_entry(act_head, struct inode, i_list);
+		if (inode->i_sb == sb && IS_QUOTAINIT(inode))
+			remove_inode_dquot_ref(inode, type, &tofree_head);
+	}
+	list_for_each(act_head, &sb->s_dirty) {
+		inode = list_entry(act_head, struct inode, i_list);
+		if (IS_QUOTAINIT(inode))
+			remove_inode_dquot_ref(inode, type, &tofree_head);
+	}
+	list_for_each(act_head, &sb->s_locked_inodes) {
+		inode = list_entry(act_head, struct inode, i_list);
+		if (IS_QUOTAINIT(inode))
+			remove_inode_dquot_ref(inode, type, &tofree_head);
+	}
+	spin_unlock(&inode_lock);
+	unlock_kernel();
+
+	put_dquot_list(&tofree_head);
+}
+
+#endif
diff --git a/fs/intermezzo/Makefile b/fs/intermezzo/Makefile
new file mode 100644
index 00000000000000..80679e33ad2458
--- /dev/null
+++ b/fs/intermezzo/Makefile
@@ -0,0 +1,15 @@
+#
+# Makefile 1.00 Peter Braam <braam@clusterfs.com>
+#
+
+O_TARGET := intermezzo.o
+
+obj-y :=  cache.o dcache.o dir.o ext_attr.o file.o fileset.o inode.o \
+	  journal.o journal_ext2.o journal_ext3.o journal_obdfs.o \
+          journal_reiserfs.o journal_tmpfs.o journal_xfs.o kml_reint.o \
+          kml_unpack.o methods.o presto.o psdev.o replicator.o super.o \
+          sysctl.o upcall.o vfs.o
+
+obj-m := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/intermezzo/cache.c b/fs/intermezzo/cache.c
new file mode 100644
index 00000000000000..97f190fa4086cb
--- /dev/null
+++ b/fs/intermezzo/cache.c
@@ -0,0 +1,215 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ *  Copyright (C) 2000 Stelias Computing, Inc.
+ *  Copyright (C) 2000 Red Hat, Inc.
+ *
+ *   This file is part of InterMezzo, http://www.inter-mezzo.org.
+ *
+ *   InterMezzo is free software; you can redistribute it and/or
+ *   modify it under the terms of version 2 of the GNU General Public
+ *   License as published by the Free Software Foundation.
+ *
+ *   InterMezzo is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with InterMezzo; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#define __NO_VERSION__
+#include <linux/module.h>
+#include <stdarg.h>
+#include <asm/bitops.h>
+#include <asm/uaccess.h>
+#include <asm/system.h>
+
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/ext2_fs.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/sched.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <linux/locks.h>
+#include <linux/blkdev.h>
+#include <linux/init.h>
+
+#include <linux/intermezzo_fs.h>
+#include <linux/intermezzo_psdev.h>
+
+/*
+   This file contains the routines associated with managing a
+   cache of files for InterMezzo.  These caches have two reqs:
+   - need to be found fast so they are hashed by the device, 
+     with an attempt to have collision chains of length 1.
+   The methods for the cache are set up in methods.
+*/
+
+extern kmem_cache_t * presto_dentry_slab;
+
+/* the intent of this hash is to have collision chains of length 1 */
+#define CACHES_BITS 8
+#define CACHES_SIZE (1 << CACHES_BITS)
+#define CACHES_MASK CACHES_SIZE - 1
+static struct list_head presto_caches[CACHES_SIZE];
+
+static inline int presto_cache_hash(kdev_t dev)
+{
+        return (CACHES_MASK) & ((0x000F & (dev)) + ((0x0F00 & (dev)) >>8));
+}
+
+inline void presto_cache_add(struct presto_cache *cache, kdev_t dev)
+{
+        list_add(&cache->cache_chain,
+                 &presto_caches[presto_cache_hash(dev)]);
+        cache->cache_dev = dev;
+}
+
+inline void presto_cache_init_hash(void)
+{
+        int i;
+        for ( i = 0; i < CACHES_SIZE; i++ ) {
+                INIT_LIST_HEAD(&presto_caches[i]);
+        }
+}
+
+int izo_ioctl_packlen(struct izo_ioctl_data *data)
+{
+        int len = sizeof(struct izo_ioctl_data);
+        len += size_round(data->ioc_inllen1);
+        len += size_round(data->ioc_inllen2);
+        return len;
+}
+
+/* map a device to a cache */
+struct presto_cache *presto_cache_find(kdev_t dev)
+{
+        struct presto_cache *cache;
+        struct list_head *lh, *tmp;
+
+        lh = tmp = &(presto_caches[presto_cache_hash(dev)]);
+        while ( (tmp = lh->next) != lh ) {
+                cache = list_entry(tmp, struct presto_cache, cache_chain);
+                if ( cache->cache_dev == dev ) {
+                        return cache;
+                }
+        }
+        return NULL;
+}
+
+
+/* map an inode to a cache */
+struct presto_cache *presto_get_cache(struct inode *inode)
+{
+        struct presto_cache *cache;
+        ENTRY;
+        /* find the correct presto_cache here, based on the device */
+        cache = presto_cache_find(inode->i_dev);
+        if ( !cache ) {
+                CERROR("WARNING: no presto cache for dev %x, ino %ld\n",
+                       inode->i_dev, inode->i_ino);
+                EXIT;
+                return NULL;
+        }
+        EXIT;
+        return cache;
+}
+
+/* another debugging routine: check fs is InterMezzo fs */
+int presto_ispresto(struct inode *inode)
+{
+        struct presto_cache *cache;
+
+        if ( !inode )
+                return 0;
+        cache = presto_get_cache(inode);
+        if ( !cache )
+                return 0;
+        return (inode->i_dev == cache->cache_dev);
+}
+
+/* setup a cache structure when we need one */
+struct presto_cache *presto_cache_init(void)
+{
+        struct presto_cache *cache;
+
+        PRESTO_ALLOC(cache, sizeof(struct presto_cache));
+        if ( cache ) {
+                memset(cache, 0, sizeof(struct presto_cache));
+                INIT_LIST_HEAD(&cache->cache_chain);
+                INIT_LIST_HEAD(&cache->cache_fset_list);
+                cache->cache_lock = SPIN_LOCK_UNLOCKED;
+                cache->cache_reserved = 0; 
+        }
+        return cache;
+}
+
+/* free a cache structure and all of the memory it is pointing to */
+inline void presto_free_cache(struct presto_cache *cache)
+{
+        if (!cache)
+                return;
+
+        list_del(&cache->cache_chain);
+        if (cache->cache_sb && cache->cache_sb->s_root &&
+                        presto_d2d(cache->cache_sb->s_root)) {
+                kmem_cache_free(presto_dentry_slab, 
+                                presto_d2d(cache->cache_sb->s_root));
+                cache->cache_sb->s_root->d_fsdata = NULL;
+        }
+
+		if (cache->cache_type)
+				PRESTO_FREE(cache->cache_type, strlen(cache->cache_type) + 1 );
+
+        PRESTO_FREE(cache, sizeof(struct presto_cache));
+}
+
+int presto_reserve_space(struct presto_cache *cache, loff_t req)
+{
+        struct filter_fs *filter; 
+        loff_t avail; 
+        struct super_block *sb = cache->cache_sb;
+        filter = cache->cache_filter;
+        if (!filter ) {
+                EXIT;
+                return 0; 
+        }
+        if (!filter->o_trops ) {
+                EXIT;
+                return 0; 
+        }
+        if (!filter->o_trops->tr_avail ) {
+                EXIT;
+                return 0; 
+        }
+
+        spin_lock(&cache->cache_lock);
+        avail = filter->o_trops->tr_avail(cache, sb); 
+        CDEBUG(D_SUPER, "ESC::%ld +++> %ld \n", (long) cache->cache_reserved,
+                 (long) (cache->cache_reserved + req)); 
+        CDEBUG(D_SUPER, "ESC::Avail::%ld \n", (long) avail);
+        if (req + cache->cache_reserved > avail) {
+                spin_unlock(&cache->cache_lock);
+                EXIT;
+                return -ENOSPC;
+        }
+        cache->cache_reserved += req; 
+        spin_unlock(&cache->cache_lock);
+
+        EXIT;
+        return 0;
+}
+
+void presto_release_space(struct presto_cache *cache, loff_t req)
+{
+        CDEBUG(D_SUPER, "ESC::%ld ---> %ld \n", (long) cache->cache_reserved,
+                 (long) (cache->cache_reserved - req)); 
+        spin_lock(&cache->cache_lock);
+        cache->cache_reserved -= req; 
+        spin_unlock(&cache->cache_lock);
+}
diff --git a/fs/intermezzo/dcache.c b/fs/intermezzo/dcache.c
new file mode 100644
index 00000000000000..12184aefeb235d
--- /dev/null
+++ b/fs/intermezzo/dcache.c
@@ -0,0 +1,350 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ *  Original version: Copyright (C) 1996 P. Braam and M. Callahan
+ *  Rewritten for Linux 2.1. Copyright (C) 1997 Carnegie Mellon University
+ *  d_fsdata and NFS compatiblity fixes Copyright (C) 2001 Tacit Networks, Inc.
+ *
+ *   This file is part of InterMezzo, http://www.inter-mezzo.org.
+ *
+ *   InterMezzo is free software; you can redistribute it and/or
+ *   modify it under the terms of version 2 of the GNU General Public
+ *   License as published by the Free Software Foundation.
+ *
+ *   InterMezzo is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with InterMezzo; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Directory operations for InterMezzo filesystem
+ */
+
+/* inode dentry alias list walking code adapted from linux/fs/dcache.c
+ *
+ * fs/dcache.c
+ *
+ * (C) 1997 Thomas Schoebel-Theuer,
+ * with heavy changes by Linus Torvalds
+ */
+
+#define __NO_VERSION__
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <linux/slab.h>
+#include <asm/segment.h>
+#include <asm/uaccess.h>
+#include <linux/string.h>
+#include <linux/smp_lock.h>
+#include <linux/vmalloc.h>
+
+#include <linux/intermezzo_fs.h>
+
+kmem_cache_t * presto_dentry_slab;
+
+/* called when a cache lookup succeeds */
+static int presto_d_revalidate(struct dentry *de, int flag)
+{
+        struct inode *inode = de->d_inode;
+        struct presto_file_set * root_fset;
+
+        ENTRY;
+        if (!inode) {
+                EXIT;
+                return 0;
+        }
+
+        if (is_bad_inode(inode)) {
+                EXIT;
+                return 0;
+        }
+
+        if (!presto_d2d(de)) {
+                presto_set_dd(de);
+        }
+
+        if (!presto_d2d(de)) {
+                EXIT;
+                return 0;
+        }
+
+        root_fset = presto_d2d(de->d_inode->i_sb->s_root)->dd_fset;
+        if (root_fset->fset_flags & FSET_FLAT_BRANCH && 
+            (presto_d2d(de)->dd_fset != root_fset )) {
+                presto_d2d(de)->dd_fset = root_fset;
+        }
+
+        EXIT;
+        return 1;
+
+#if 0
+        /* The following is needed for metadata on demand. */
+        if ( S_ISDIR(inode->i_mode) ) {
+                EXIT;
+                return (presto_chk(de, PRESTO_DATA) &&
+                        (presto_chk(de, PRESTO_ATTR)));
+        } else {
+                EXIT;
+                return presto_chk(de, PRESTO_ATTR);
+        }
+#endif
+}
+
+static void presto_d_release(struct dentry *dentry)
+{
+        if (!presto_d2d(dentry)) {
+                /* This can happen for dentries from NFSd */
+                return;
+        }
+        presto_d2d(dentry)->dd_count--;
+
+        if (!presto_d2d(dentry)->dd_count) {
+                kmem_cache_free(presto_dentry_slab, presto_d2d(dentry));
+                dentry->d_fsdata = NULL;
+        }
+}
+
+struct dentry_operations presto_dentry_ops = 
+{
+        .d_revalidate =  presto_d_revalidate,
+        .d_release = presto_d_release
+};
+
+static inline int presto_is_dentry_ROOT (struct dentry *dentry)
+{
+        return(dentry_name_cmp(dentry,"ROOT") &&
+               !dentry_name_cmp(dentry->d_parent,".intermezzo"));
+}
+
+static struct presto_file_set* presto_try_find_fset(struct dentry* dentry,
+                int *is_under_d_intermezzo)
+{
+        struct dentry* temp_dentry;
+        struct presto_dentry_data *d_data;
+        int found_root=0;
+
+        ENTRY;
+        CDEBUG(D_FSDATA, "finding fileset for %p:%s\n", dentry, 
+                        dentry->d_name.name);
+
+        *is_under_d_intermezzo = 0;
+
+        /* walk up through the branch to get the fileset */
+        /* The dentry we are passed presumably does not have the correct
+         * fset information. However, we still want to start walking up
+         * the branch from this dentry to get our found_root and 
+         * is_under_d_intermezzo decisions correct
+         */
+        for (temp_dentry = dentry ; ; temp_dentry = temp_dentry->d_parent) {
+                CDEBUG(D_FSDATA, "--->dentry %p:%*s\n", temp_dentry, 
+                        temp_dentry->d_name.len,temp_dentry->d_name.name);
+                if (presto_is_dentry_ROOT(temp_dentry))
+                        found_root = 1;
+                if (!found_root &&
+                    dentry_name_cmp(temp_dentry, ".intermezzo")) {
+                        *is_under_d_intermezzo = 1;
+                }
+                d_data = presto_d2d(temp_dentry);
+                if (d_data) {
+                        /* If we found a "ROOT" dentry while walking up the
+                         * branch, we will journal regardless of whether
+                         * we are under .intermezzo or not.
+                         * If we are already under d_intermezzo don't reverse
+                         * the decision here...even if we found a "ROOT"
+                         * dentry above .intermezzo (if we were ever to
+                         * modify the directory structure).
+                         */
+                        if (!*is_under_d_intermezzo)  
+                                *is_under_d_intermezzo = !found_root &&
+                                  (d_data->dd_flags & PRESTO_DONT_JOURNAL);
+                        EXIT;
+                        return d_data->dd_fset;
+                }
+                if (temp_dentry->d_parent == temp_dentry) {
+                        break;
+                }
+        }
+        EXIT;
+        return NULL;
+}
+
+/* Only call this function on positive dentries */
+static struct presto_dentry_data* presto_try_find_alias_with_dd (
+                  struct dentry* dentry)
+{
+        struct inode *inode=dentry->d_inode;
+        struct list_head *head, *next, *tmp;
+        struct dentry *tmp_dentry;
+
+        /* Search through the alias list for dentries with d_fsdata */
+        spin_lock(&dcache_lock);
+        head = &inode->i_dentry;
+        next = inode->i_dentry.next;
+        while (next != head) {
+                tmp = next;
+                next = tmp->next;
+                tmp_dentry = list_entry(tmp, struct dentry, d_alias);
+                if (!presto_d2d(tmp_dentry)) {
+                        spin_unlock(&dcache_lock);
+                        return presto_d2d(tmp_dentry);
+                }
+        }
+        spin_unlock(&dcache_lock);
+        return NULL;
+}
+
+/* Only call this function on positive dentries */
+static void presto_set_alias_dd (struct dentry *dentry, 
+                struct presto_dentry_data* dd)
+{
+        struct inode *inode=dentry->d_inode;
+        struct list_head *head, *next, *tmp;
+        struct dentry *tmp_dentry;
+
+        /* Set d_fsdata for this dentry */
+        dd->dd_count++;
+        dentry->d_fsdata = dd;
+
+        /* Now set d_fsdata for all dentries in the alias list. */
+        spin_lock(&dcache_lock);
+        head = &inode->i_dentry;
+        next = inode->i_dentry.next;
+        while (next != head) {
+                tmp = next;
+                next = tmp->next;
+                tmp_dentry = list_entry(tmp, struct dentry, d_alias);
+                if (!presto_d2d(tmp_dentry)) {
+                        dd->dd_count++;
+                        tmp_dentry->d_fsdata = dd;
+                }
+        }
+        spin_unlock(&dcache_lock);
+        return;
+}
+
+inline struct presto_dentry_data *izo_alloc_ddata(void)
+{
+        struct presto_dentry_data *dd;
+
+        dd = kmem_cache_alloc(presto_dentry_slab, SLAB_KERNEL);
+        if (dd == NULL) {
+                CERROR("IZO: out of memory trying to allocate presto_dentry_data\n");
+                return NULL;
+        }
+        memset(dd, 0, sizeof(*dd));
+        dd->dd_count = 1;
+
+        return dd;
+}
+
+/* This uses the BKL! */
+int presto_set_dd(struct dentry * dentry)
+{
+        struct presto_file_set *fset;
+        struct presto_dentry_data *dd;
+        int is_under_d_izo;
+        int error=0;
+
+        ENTRY;
+
+        if (!dentry)
+                BUG();
+
+        lock_kernel();
+
+        /* Did we lose a race? */
+        if (dentry->d_fsdata) {
+                CERROR("dentry %p already has d_fsdata set\n", dentry);
+                if (dentry->d_inode)
+                        CERROR("    inode: %ld\n", dentry->d_inode->i_ino);
+                EXIT;
+                goto out_unlock;
+        }
+
+        if (dentry->d_inode != NULL) {
+                /* NFSd runs find_fh_dentry which instantiates disconnected
+                 * dentries which are then connected without a lookup(). 
+                 * So it is possible to have connected dentries that do not 
+                 * have d_fsdata set. So we walk the list trying to find 
+                 * an alias which has its d_fsdata set and then use that 
+                 * for all the other dentries  as well. 
+                 * - SHP,Vinny. 
+                 */
+
+                /* If there is an alias with d_fsdata use it. */
+                if ((dd = presto_try_find_alias_with_dd (dentry))) {
+                        presto_set_alias_dd (dentry, dd);
+                        EXIT;
+                        goto out_unlock;
+                }
+        } else {
+                /* Negative dentry */
+                CDEBUG(D_FSDATA,"negative dentry %p: %*s\n", dentry, 
+                                dentry->d_name.len, dentry->d_name.name);
+        }
+
+        /* No pre-existing d_fsdata, we need to construct one.
+         * First, we must walk up the tree to find the fileset 
+         * If a fileset can't be found, we leave a null fsdata
+         * and return EROFS to indicate that we can't journal
+         * updates. 
+         */
+        fset = presto_try_find_fset (dentry, &is_under_d_izo);
+        if (!fset) { 
+#ifdef PRESTO_NO_NFS
+                CERROR("No fileset for dentry %p: %*s\n", dentry,
+                                dentry->d_name.len, dentry->d_name.name);
+#endif
+                error = -EROFS;
+                EXIT;
+                goto out_unlock;
+        }
+
+        dentry->d_fsdata = izo_alloc_ddata();
+        if (!presto_d2d(dentry)) {
+                CERROR ("InterMezzo: out of memory allocating d_fsdata\n");
+                error = -ENOMEM;
+                goto out_unlock;
+        }
+        presto_d2d(dentry)->dd_fset = fset;
+        if (is_under_d_izo)
+                presto_d2d(dentry)->dd_flags |= PRESTO_DONT_JOURNAL;
+        EXIT;
+
+out_unlock:    
+        CDEBUG(D_FSDATA,"presto_set_dd dentry %p: %*s, d_fsdata %p\n", 
+                        dentry, dentry->d_name.len, dentry->d_name.name, 
+                        dentry->d_fsdata);
+        unlock_kernel();
+
+        filter_setup_dentry_ops(fset->fset_cache->cache_filter,
+                                dentry->d_op, &presto_dentry_ops);
+        dentry->d_op = filter_c2udops(fset->fset_cache->cache_filter);
+
+        return error; 
+}
+
+int presto_init_ddata_cache(void)
+{
+        ENTRY;
+        presto_dentry_slab =
+                kmem_cache_create("presto_cache",
+                                  sizeof(struct presto_dentry_data), 0,
+                                  SLAB_HWCACHE_ALIGN, NULL,
+                                  NULL);
+        EXIT;
+        return (presto_dentry_slab != NULL);
+}
+
+void presto_cleanup_ddata_cache(void)
+{
+        kmem_cache_destroy(presto_dentry_slab);
+}
diff --git a/fs/intermezzo/dir.c b/fs/intermezzo/dir.c
new file mode 100644
index 00000000000000..b22c4b9fb014f9
--- /dev/null
+++ b/fs/intermezzo/dir.c
@@ -0,0 +1,1412 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ *  Copyright (C) 2000 Stelias Computing, Inc.
+ *  Copyright (C) 2000 Red Hat, Inc.
+ *  Copyright (C) 2000 Tacitus Systems
+ *  Copyright (C) 2000 Peter J. Braam
+ *
+ *   This file is part of InterMezzo, http://www.inter-mezzo.org.
+ *
+ *   InterMezzo is free software; you can redistribute it and/or
+ *   modify it under the terms of version 2 of the GNU General Public
+ *   License as published by the Free Software Foundation.
+ *
+ *   InterMezzo is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with InterMezzo; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <stdarg.h>
+
+#include <asm/bitops.h>
+#include <asm/uaccess.h>
+#include <asm/system.h>
+#include <linux/smp_lock.h>
+
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/ext2_fs.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/sched.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <linux/locks.h>
+#include <linux/blkdev.h>
+#include <linux/init.h>
+#define __NO_VERSION__
+#include <linux/module.h>
+
+#include <linux/intermezzo_fs.h>
+#include <linux/intermezzo_psdev.h>
+
+static inline void presto_relock_sem(struct inode *dir) 
+{
+        /* the lock from sys_mkdir / lookup_create */
+        down(&dir->i_sem);
+        /* the rest is done by the do_{create,mkdir, ...} */
+}
+
+static inline void presto_relock_other(struct inode *dir) 
+{
+        /* vfs_mkdir locks */
+        down(&dir->i_zombie);
+        lock_kernel(); 
+}
+
+static inline void presto_fulllock(struct inode *dir) 
+{
+        /* the lock from sys_mkdir / lookup_create */
+        down(&dir->i_sem);
+        /* vfs_mkdir locks */
+        down(&dir->i_zombie);
+        lock_kernel(); 
+}
+
+static inline void presto_unlock(struct inode *dir) 
+{
+        /* vfs_mkdir locks */
+        unlock_kernel(); 
+        up(&dir->i_zombie);
+        /* the lock from sys_mkdir / lookup_create */
+        up(&dir->i_sem);
+}
+
+
+/*
+ * these are initialized in super.c
+ */
+extern int presto_permission(struct inode *inode, int mask);
+static int izo_authorized_uid = 0;
+
+int izo_dentry_is_ilookup(struct dentry *dentry, ino_t *id,
+                          unsigned int *generation)
+{
+        char tmpname[64];
+        char *next;
+
+        ENTRY;
+        /* prefix is 7 characters: '...ino:' */
+        if ( dentry->d_name.len < 7 || dentry->d_name.len > 64 ||
+             memcmp(dentry->d_name.name, PRESTO_ILOOKUP_MAGIC, 7) != 0 ) {
+                EXIT;
+                return 0;
+        }
+
+        memcpy(tmpname, dentry->d_name.name + 7, dentry->d_name.len - 7);
+        *(tmpname + dentry->d_name.len - 7) = '\0';
+
+        /* name is of the form ...ino:<inode number>:<generation> */
+        *id = simple_strtoul(tmpname, &next, 16);
+        if ( *next == PRESTO_ILOOKUP_SEP ) {
+                *generation = simple_strtoul(next + 1, 0, 16);
+                CDEBUG(D_INODE, "ino string: %s, Id = %lx (%lu), "
+                       "generation %x (%d)\n",
+                       tmpname, *id, *id, *generation, *generation);
+                EXIT;
+                return 1;
+        } else {
+                EXIT;
+                return 0;
+        }
+}
+
+struct dentry *presto_tmpfs_ilookup(struct inode *dir, 
+                                    struct dentry *dentry,
+                                    ino_t ino, 
+                                    unsigned int generation)
+{
+        return dentry; 
+}
+
+
+inline int presto_can_ilookup(void)
+{
+        return (current->euid == izo_authorized_uid ||
+                capable(CAP_DAC_READ_SEARCH));
+}
+
+struct dentry *presto_iget_ilookup(struct inode *dir, 
+                                          struct dentry *dentry,
+                                          ino_t ino, 
+                                          unsigned int generation)
+{
+        struct inode *inode;
+        int error;
+
+        ENTRY;
+
+        if ( !presto_can_ilookup() ) {
+                CERROR("ilookup denied: euid %u, authorized_uid %u\n",
+                       current->euid, izo_authorized_uid);
+                return ERR_PTR(-EPERM);
+        }
+        error = -ENOENT;
+        inode = iget(dir->i_sb, ino);
+        if (!inode) { 
+                CERROR("fatal: NULL inode ino %lu\n", ino); 
+                goto cleanup_iput;
+        }
+        if (is_bad_inode(inode) || inode->i_nlink == 0) {
+                CERROR("fatal: bad inode ino %lu, links %d\n", ino, inode->i_nlink); 
+                goto cleanup_iput;
+        }
+        if (inode->i_generation != generation) {
+                CERROR("fatal: bad generation %u (want %u)\n",
+                       inode->i_generation, generation);
+                goto cleanup_iput;
+        }
+
+        d_instantiate(dentry, inode);
+        dentry->d_flags |= DCACHE_NFSD_DISCONNECTED; /* NFS hack */
+
+        EXIT;
+        return NULL;
+
+cleanup_iput:
+        if (inode)
+                iput(inode);
+        return ERR_PTR(error);
+}
+
+struct dentry *presto_add_ilookup_dentry(struct dentry *parent,
+                                         struct dentry *real)
+{
+        struct inode *inode = real->d_inode;
+        struct dentry *de;
+        char buf[32];
+        char *ptr = buf;
+        struct dentry *inodir;
+        struct presto_dentry_data *dd;
+
+        inodir = lookup_one_len("..iopen..", parent,  strlen("..iopen..")); 
+        if (!inodir || IS_ERR(inodir) || !inodir->d_inode ) { 
+                CERROR("%s: bad ..iopen.. lookup\n", __FUNCTION__); 
+                return NULL; 
+        }
+        inodir->d_inode->i_op = &presto_dir_iops;
+
+        snprintf(ptr, 32, "...ino:%lx:%x", inode->i_ino, inode->i_generation);
+
+        de = lookup_one_len(ptr, inodir,  strlen(ptr)); 
+        if (!de || IS_ERR(de)) {
+                CERROR("%s: bad ...ino lookup %ld\n", 
+                       __FUNCTION__, PTR_ERR(de)); 
+                dput(inodir);
+                return NULL; 
+        }
+
+        dd = presto_d2d(real);
+        if (!dd) 
+                BUG();
+
+        /* already exists */
+        if (de->d_inode)
+                BUG();
+#if 0 
+                if (de->d_inode != inode ) { 
+                        CERROR("XX de->d_inode %ld, inode %ld\n", 
+                               de->d_inode->i_ino, inode->i_ino); 
+                        BUG();
+                }
+                if (dd->dd_inodentry) { 
+                        CERROR("inodentry exists %ld \n", inode->i_ino);
+                        BUG();
+                }
+                dput(inodir);
+                return de;
+        }
+#endif 
+
+        if (presto_d2d(de)) 
+                BUG();
+
+        atomic_inc(&inode->i_count);
+        de->d_op = &presto_dentry_ops;
+        d_add(de, inode);
+        if (!de->d_op)
+                CERROR("DD: no ops dentry %p, dd %p\n", de, dd);
+        dd->dd_inodentry = de;
+        dd->dd_count++;
+        de->d_fsdata = dd;
+
+        dput(inodir);
+        return de;
+}
+
+struct dentry *presto_lookup(struct inode * dir, struct dentry *dentry)
+{
+        int rc = 0;
+        struct dentry *de;
+        struct presto_cache *cache;
+        int minor;
+        ino_t ino;
+        unsigned int generation;
+        struct inode_operations *iops;
+        int is_ilookup = 0;
+
+        ENTRY;
+        cache = presto_get_cache(dir);
+        if (cache == NULL) {
+                CERROR("InterMezzo BUG: no cache in presto_lookup "
+                       "(dir ino: %ld)!\n", dir->i_ino);
+                EXIT;
+                return NULL;
+        }
+        minor = presto_c2m(cache);
+
+        iops = filter_c2cdiops(cache->cache_filter);
+        if (!iops || !iops->lookup) {
+                CERROR("InterMezzo BUG: filesystem has no lookup\n");
+                EXIT;
+                return NULL;
+        }
+
+
+        CDEBUG(D_CACHE, "dentry %p, dir ino: %ld, name: %*s, islento: %d\n",
+               dentry, dir->i_ino, dentry->d_name.len, dentry->d_name.name,
+               ISLENTO(minor));
+
+        if (dentry->d_fsdata)
+                CERROR("DD -- BAD dentry %p has data\n", dentry);
+                       
+        dentry->d_fsdata = NULL;
+#if 0
+        if (ext2_check_for_iopen(dir, dentry))
+                de = NULL;
+        else {
+#endif
+                if ( izo_dentry_is_ilookup(dentry, &ino, &generation) ) { 
+                        de = cache->cache_filter->o_trops->tr_ilookup
+                                (dir, dentry, ino, generation);
+                        is_ilookup = 1;
+                } else
+                        de = iops->lookup(dir, dentry);
+#if 0
+        }
+#endif
+
+        if ( IS_ERR(de) ) {
+                CERROR("dentry lookup error %ld\n", PTR_ERR(de));
+                return de;
+        }
+
+        /* some file systems have no read_inode: set methods here */
+        if (dentry->d_inode)
+                presto_set_ops(dentry->d_inode, cache->cache_filter);
+		/* dentry->d_op is now hooked in dcache.c:presto_set_dd */
+
+        /* In lookup we will tolerate EROFS return codes from presto_set_dd
+         * to placate NFS. EROFS indicates that a fileset was not found but
+         * we should still be able to continue through a lookup.
+         * Anything else is a hard error and must be returned to VFS. */
+        if (!is_ilookup)
+                rc = presto_set_dd(dentry);
+        if (rc && rc != -EROFS) {
+                CERROR("presto_set_dd failed (dir %ld, name %*s): %d\n",
+                       dir->i_ino, dentry->d_name.len, dentry->d_name.name, rc);
+                return ERR_PTR(rc);
+        }
+
+        EXIT;
+        return NULL;
+}
+
+static inline int presto_check_set_fsdata (struct dentry *de)
+{
+        if (presto_d2d(de) == NULL) {
+#ifdef PRESTO_NO_NFS
+                CERROR("dentry without fsdata: %p: %*s\n", de, 
+                                de->d_name.len, de->d_name.name);
+                BUG();
+#endif
+                return presto_set_dd (de);
+        }
+
+        return 0;
+}
+
+int presto_setattr(struct dentry *de, struct iattr *iattr)
+{
+        int error;
+        struct presto_cache *cache;
+        struct presto_file_set *fset;
+        struct lento_vfs_context info = { 0, 0, 0 };
+
+        ENTRY;
+
+        error = presto_prep(de, &cache, &fset);
+        if ( error ) {
+                EXIT;
+                return error;
+        }
+
+        if (!iattr->ia_valid)
+                CDEBUG(D_INODE, "presto_setattr: iattr is not valid\n");
+
+        CDEBUG(D_INODE, "valid %#x, mode %#o, uid %u, gid %u, size %Lu, "
+               "atime %lu mtime %lu ctime %lu flags %d\n",
+               iattr->ia_valid, iattr->ia_mode, iattr->ia_uid, iattr->ia_gid,
+               iattr->ia_size, iattr->ia_atime, iattr->ia_mtime,
+               iattr->ia_ctime, iattr->ia_attr_flags);
+        
+        if ( presto_get_permit(de->d_inode) < 0 ) {
+                EXIT;
+                return -EROFS;
+        }
+
+        if (!ISLENTO(presto_c2m(cache)))
+                info.flags = LENTO_FL_KML;
+        info.flags |= LENTO_FL_IGNORE_TIME;
+        error = presto_do_setattr(fset, de, iattr, &info);
+        presto_put_permit(de->d_inode);
+        return error;
+}
+
+/*
+ *  Now the meat: the fs operations that require journaling
+ *
+ *
+ *  XXX: some of these need modifications for hierarchical filesets
+ */
+
+int presto_prep(struct dentry *dentry, struct presto_cache **cache,
+                struct presto_file_set **fset)
+{       
+        int rc;
+
+        /* NFS might pass us dentries which have not gone through lookup.
+         * Test and set d_fsdata for such dentries
+         */
+        rc = presto_check_set_fsdata (dentry);
+        if (rc) return rc;
+
+        *fset = presto_fset(dentry);
+        if ( *fset == NULL ) {
+                CERROR("No file set for dentry at %p: %*s\n", dentry,
+                                dentry->d_name.len, dentry->d_name.name);
+                return -EROFS;
+        }
+
+        *cache = (*fset)->fset_cache;
+        if ( *cache == NULL ) {
+                CERROR("PRESTO: BAD, BAD: cannot find cache\n");
+                return -EBADF;
+        }
+
+        CDEBUG(D_PIOCTL, "---> cache flags %x, fset flags %x\n",
+              (*cache)->cache_flags, (*fset)->fset_flags);
+        if( presto_is_read_only(*fset) ) {
+                CERROR("PRESTO: cannot modify read-only fileset, minor %d.\n",
+                       presto_c2m(*cache));
+                return -EROFS;
+        }
+        return 0;
+}
+
+static int presto_create(struct inode * dir, struct dentry * dentry, int mode)
+{
+        int error;
+        struct presto_cache *cache;
+        struct dentry *parent = dentry->d_parent;
+        struct lento_vfs_context info;
+        struct presto_file_set *fset;
+
+        ENTRY;
+        error = presto_check_set_fsdata(dentry);
+        if ( error ) {
+                EXIT;
+                return error;
+        }
+
+        error = presto_prep(dentry->d_parent, &cache, &fset);
+        if ( error ) {
+                EXIT;
+                return error;
+        }
+        presto_unlock(dir);
+
+        /* Does blocking and non-blocking behavious need to be 
+           checked for.  Without blocking (return 1), the permit
+           was acquired without reintegration
+        */
+        if ( presto_get_permit(dir) < 0 ) {
+                EXIT;
+                presto_fulllock(dir);
+                return -EROFS;
+        }
+
+        presto_relock_sem(dir);
+        parent = dentry->d_parent; 
+        memset(&info, 0, sizeof(info));
+        if (!ISLENTO(presto_c2m(cache)))
+                info.flags = LENTO_FL_KML;
+        info.flags |= LENTO_FL_IGNORE_TIME;
+        error = presto_do_create(fset, parent, dentry, mode, &info);
+
+        presto_relock_other(dir);
+        presto_put_permit(dir);
+        EXIT;
+        return error;
+}
+
+static int presto_link(struct dentry *old_dentry, struct inode *dir,
+                struct dentry *new_dentry)
+{
+        int error;
+        struct presto_cache *cache, *new_cache;
+        struct presto_file_set *fset, *new_fset;
+        struct dentry *parent = new_dentry->d_parent;
+        struct lento_vfs_context info;
+
+        ENTRY;
+        error = presto_prep(old_dentry, &cache, &fset);
+        if ( error ) {
+                EXIT;
+                return error;
+        }
+
+        error = presto_check_set_fsdata(new_dentry);
+        if ( error ) {
+                EXIT;
+                return error;
+        }
+
+        error = presto_prep(new_dentry->d_parent, &new_cache, &new_fset);
+        if ( error ) {
+                EXIT;
+                return error;
+        }
+
+        if (fset != new_fset) { 
+                EXIT;
+                return -EXDEV;
+        }
+
+        presto_unlock(dir);
+        if ( presto_get_permit(old_dentry->d_inode) < 0 ) {
+                EXIT;
+                presto_fulllock(dir);
+                return -EROFS;
+        }
+
+        if ( presto_get_permit(dir) < 0 ) {
+                EXIT;
+                presto_fulllock(dir);
+                return -EROFS;
+        }
+
+        presto_relock_sem(dir);
+        parent = new_dentry->d_parent;
+
+        memset(&info, 0, sizeof(info));
+        if (!ISLENTO(presto_c2m(cache)))
+                info.flags = LENTO_FL_KML;
+        info.flags |= LENTO_FL_IGNORE_TIME;
+        error = presto_do_link(fset, old_dentry, parent,
+                               new_dentry, &info);
+
+#if 0
+        /* XXX for links this is not right */
+        if (cache->cache_filter->o_trops->tr_add_ilookup ) { 
+                struct dentry *d;
+                d = cache->cache_filter->o_trops->tr_add_ilookup
+                        (dir->i_sb->s_root, new_dentry, 1); 
+        }
+#endif 
+
+        presto_relock_other(dir);
+        presto_put_permit(dir);
+        presto_put_permit(old_dentry->d_inode);
+        return error;
+}
+
+static int presto_mkdir(struct inode * dir, struct dentry * dentry, int mode)
+{
+        int error;
+        struct presto_file_set *fset;
+        struct presto_cache *cache;
+        struct dentry *parent = dentry->d_parent;
+        struct lento_vfs_context info;
+
+        ENTRY;
+
+        error = presto_check_set_fsdata(dentry);
+        if ( error  ) {
+                EXIT;
+                return error;
+        }
+
+        error = presto_prep(dentry->d_parent, &cache, &fset);
+        if ( error  ) {
+                EXIT;
+                return error;
+        }
+
+        presto_unlock(dir); 
+
+        if ( presto_get_permit(dir) < 0 ) {
+                EXIT;
+                presto_fulllock(dir);
+                return -EROFS;
+        }
+
+        memset(&info, 0, sizeof(info));
+        if (!ISLENTO(presto_c2m(cache)))
+                info.flags = LENTO_FL_KML;
+        info.flags |= LENTO_FL_IGNORE_TIME;
+
+        presto_relock_sem(dir); 
+        parent = dentry->d_parent;
+        error = presto_do_mkdir(fset, parent, dentry, mode, &info);
+        presto_relock_other(dir); 
+        presto_put_permit(dir);
+        return error;
+}
+
+
+
+static int presto_symlink(struct inode *dir, struct dentry *dentry,
+                   const char *name)
+{
+        int error;
+        struct presto_cache *cache;
+        struct presto_file_set *fset;
+        struct dentry *parent = dentry->d_parent;
+        struct lento_vfs_context info;
+
+        ENTRY;
+        error = presto_check_set_fsdata(dentry);
+        if ( error ) {
+                EXIT;
+                return error;
+        }
+
+        error = presto_prep(dentry->d_parent, &cache, &fset);
+        if ( error ) {
+                EXIT;
+                return error;
+        }
+
+        presto_unlock(dir);
+        if ( presto_get_permit(dir) < 0 ) {
+                EXIT;
+                presto_fulllock(dir);
+                return -EROFS;
+        }
+
+        presto_relock_sem(dir);
+        parent = dentry->d_parent;
+        memset(&info, 0, sizeof(info));
+        if (!ISLENTO(presto_c2m(cache)))
+                info.flags = LENTO_FL_KML;
+        info.flags |= LENTO_FL_IGNORE_TIME;
+        error = presto_do_symlink(fset, parent, dentry, name, &info);
+        presto_relock_other(dir);
+        presto_put_permit(dir);
+        return error;
+}
+
+int presto_unlink(struct inode *dir, struct dentry *dentry)
+{
+        int error;
+        struct presto_cache *cache;
+        struct presto_file_set *fset;
+        struct dentry *parent = dentry->d_parent;
+        struct lento_vfs_context info;
+
+        ENTRY;
+        error = presto_check_set_fsdata(dentry);
+        if ( error ) {
+                EXIT;
+                return error;
+        }
+
+        error = presto_prep(dentry->d_parent, &cache, &fset);
+        if ( error  ) {
+                EXIT;
+                return error;
+        }
+
+        presto_unlock(dir);
+        if ( presto_get_permit(dir) < 0 ) {
+                EXIT;
+                presto_fulllock(dir);
+                return -EROFS;
+        }
+
+        presto_relock_sem(dir);
+        parent = dentry->d_parent;
+        memset(&info, 0, sizeof(info));
+        if (!ISLENTO(presto_c2m(cache)))
+                info.flags = LENTO_FL_KML;
+        info.flags |= LENTO_FL_IGNORE_TIME;
+
+        error = presto_do_unlink(fset, parent, dentry, &info);
+
+        presto_relock_other(dir);
+        presto_put_permit(dir);
+        return error;
+}
+
+static int presto_rmdir(struct inode *dir, struct dentry *dentry)
+{
+        int error;
+        struct presto_cache *cache;
+        struct presto_file_set *fset;
+        struct dentry *parent = dentry->d_parent;
+        struct lento_vfs_context info;
+
+        ENTRY;
+        CDEBUG(D_FILE, "prepping presto\n");
+        error = presto_check_set_fsdata(dentry);
+
+        if ( error ) {
+                EXIT;
+                return error;
+        }
+
+        error = presto_prep(dentry->d_parent, &cache, &fset);
+        if ( error ) {
+                EXIT;
+                return error;
+        }
+
+        CDEBUG(D_FILE, "unlocking\n");
+        /* We need to dget() before the dput in double_unlock, to ensure we
+         * still have dentry references.  double_lock doesn't do dget for us.
+         */
+        unlock_kernel();
+        if (d_unhashed(dentry))
+                d_rehash(dentry);
+        double_up(&dir->i_zombie, &dentry->d_inode->i_zombie);
+        double_up(&dir->i_sem, &dentry->d_inode->i_sem);
+
+        CDEBUG(D_FILE, "getting permit\n");
+        if ( presto_get_permit(parent->d_inode) < 0 ) {
+                EXIT;
+                double_down(&dir->i_sem, &dentry->d_inode->i_sem);
+                double_down(&dir->i_zombie, &dentry->d_inode->i_zombie);
+                
+                lock_kernel();
+                return -EROFS;
+        }
+        CDEBUG(D_FILE, "locking\n");
+
+        double_down(&dir->i_sem, &dentry->d_inode->i_sem);
+        parent = dentry->d_parent;
+        memset(&info, 0, sizeof(info));
+        if (!ISLENTO(presto_c2m(cache)))
+                info.flags = LENTO_FL_KML;
+        info.flags |= LENTO_FL_IGNORE_TIME;
+        error = presto_do_rmdir(fset, parent, dentry, &info);
+        presto_put_permit(parent->d_inode);
+        lock_kernel();
+        EXIT;
+        return error;
+}
+
+static int presto_mknod(struct inode * dir, struct dentry * dentry, int mode, int rdev)
+{
+        int error;
+        struct presto_cache *cache;
+        struct presto_file_set *fset;
+        struct dentry *parent = dentry->d_parent;
+        struct lento_vfs_context info;
+
+        ENTRY;
+        error = presto_check_set_fsdata(dentry);
+        if ( error ) {
+                EXIT;
+                return error;
+        }
+
+        error = presto_prep(dentry->d_parent, &cache, &fset);
+        if ( error  ) {
+                EXIT;
+                return error;
+        }
+
+        presto_unlock(dir);
+        if ( presto_get_permit(dir) < 0 ) {
+                EXIT;
+                presto_fulllock(dir);
+                return -EROFS;
+        }
+        
+        presto_relock_sem(dir);
+        parent = dentry->d_parent;
+        memset(&info, 0, sizeof(info));
+        if (!ISLENTO(presto_c2m(cache)))
+                info.flags = LENTO_FL_KML;
+        info.flags |= LENTO_FL_IGNORE_TIME;
+        error = presto_do_mknod(fset, parent, dentry, mode, rdev, &info);
+        presto_relock_other(dir);
+        presto_put_permit(dir);
+        EXIT;
+        return error;
+}
+
+inline void presto_triple_unlock(struct inode *old_dir, struct inode *new_dir, 
+                                 struct dentry *old_dentry, 
+                                 struct dentry *new_dentry, int triple)
+{
+        /* rename_dir case */ 
+        if (S_ISDIR(old_dentry->d_inode->i_mode)) { 
+                if (triple) {                   
+                        triple_up(&old_dir->i_zombie,
+                                  &new_dir->i_zombie,
+                                  &new_dentry->d_inode->i_zombie);
+                } else { 
+                        double_up(&old_dir->i_zombie,
+                                  &new_dir->i_zombie);
+                }
+                up(&old_dir->i_sb->s_vfs_rename_sem);
+        } else /* this case is rename_other */
+                double_up(&old_dir->i_zombie, &new_dir->i_zombie);
+        /* done by do_rename */
+        unlock_kernel();
+        double_up(&old_dir->i_sem, &new_dir->i_sem);
+}
+
+inline void presto_triple_fulllock(struct inode *old_dir, 
+                                   struct inode *new_dir, 
+                                   struct dentry *old_dentry, 
+                                   struct dentry *new_dentry, int triple)
+{
+        /* done by do_rename */
+        double_down(&old_dir->i_sem, &new_dir->i_sem);
+        lock_kernel();
+        /* rename_dir case */ 
+        if (S_ISDIR(old_dentry->d_inode->i_mode)) { 
+                down(&old_dir->i_sb->s_vfs_rename_sem);
+                if (triple) {                   
+                        triple_down(&old_dir->i_zombie,
+                                  &new_dir->i_zombie,
+                                  &new_dentry->d_inode->i_zombie);
+                } else { 
+                        double_down(&old_dir->i_zombie,
+                                  &new_dir->i_zombie);
+                }
+        } else /* this case is rename_other */
+                double_down(&old_dir->i_zombie, &new_dir->i_zombie);
+}
+
+inline void presto_triple_relock_sem(struct inode *old_dir, 
+                                   struct inode *new_dir, 
+                                   struct dentry *old_dentry, 
+                                   struct dentry *new_dentry, int triple)
+{
+        /* done by do_rename */
+        double_down(&old_dir->i_sem, &new_dir->i_sem);
+        lock_kernel();
+}
+
+inline void presto_triple_relock_other(struct inode *old_dir, 
+                                   struct inode *new_dir, 
+                                   struct dentry *old_dentry, 
+                                   struct dentry *new_dentry, int triple)
+{
+        /* rename_dir case */ 
+        if (S_ISDIR(old_dentry->d_inode->i_mode)) { 
+                down(&old_dir->i_sb->s_vfs_rename_sem);
+                if (triple) {                   
+                        triple_down(&old_dir->i_zombie,
+                                  &new_dir->i_zombie,
+                                  &new_dentry->d_inode->i_zombie);
+                } else { 
+                        double_down(&old_dir->i_zombie,
+                                  &new_dir->i_zombie);
+                }
+        } else /* this case is rename_other */
+                double_down(&old_dir->i_zombie, &new_dir->i_zombie);
+}
+
+
+// XXX this can be optimized: renamtes across filesets only require 
+//     multiple KML records, but can locally be executed normally. 
+int presto_rename(struct inode *old_dir, struct dentry *old_dentry,
+                  struct inode *new_dir, struct dentry *new_dentry)
+{
+        int error;
+        struct presto_cache *cache, *new_cache;
+        struct presto_file_set *fset, *new_fset;
+        struct lento_vfs_context info;
+        struct dentry *old_parent = old_dentry->d_parent;
+        struct dentry *new_parent = new_dentry->d_parent;
+        int triple;
+
+        ENTRY;
+        error = presto_prep(old_dentry, &cache, &fset);
+        if ( error ) {
+                EXIT;
+                return error;
+        }
+        error = presto_prep(new_parent, &new_cache, &new_fset);
+        if ( error ) {
+                EXIT;
+                return error;
+        }
+
+        if ( fset != new_fset ) {
+                EXIT;
+                return -EXDEV;
+        }
+
+        /* We need to do dget before the dput in double_unlock, to ensure we
+         * still have dentry references.  double_lock doesn't do dget for us.
+         */
+
+        triple = (S_ISDIR(old_dentry->d_inode->i_mode) && new_dentry->d_inode)?
+                1:0;
+
+        presto_triple_unlock(old_dir, new_dir, old_dentry, new_dentry, triple); 
+
+        if ( presto_get_permit(old_dir) < 0 ) {
+                EXIT;
+                presto_triple_fulllock(old_dir, new_dir, old_dentry, new_dentry, triple); 
+                return -EROFS;
+        }
+        if ( presto_get_permit(new_dir) < 0 ) {
+                EXIT;
+                presto_triple_fulllock(old_dir, new_dir, old_dentry, new_dentry, triple); 
+                return -EROFS;
+        }
+
+        presto_triple_relock_sem(old_dir, new_dir, old_dentry, new_dentry, triple); 
+        memset(&info, 0, sizeof(info));
+        if (!ISLENTO(presto_c2m(cache)))
+                info.flags = LENTO_FL_KML;
+        info.flags |= LENTO_FL_IGNORE_TIME;
+        error = do_rename(fset, old_parent, old_dentry, new_parent,
+                          new_dentry, &info);
+        presto_triple_relock_other(old_dir, new_dir, old_dentry, new_dentry, triple); 
+
+        presto_put_permit(new_dir);
+        presto_put_permit(old_dir);
+        return error;
+}
+
+/* basically this allows the ilookup processes access to all files for
+ * reading, while not making ilookup totally insecure.  This could all
+ * go away if we could set the CAP_DAC_READ_SEARCH capability for the client.
+ */
+/* If posix acls are available, the underlying cache fs will export the
+ * appropriate permission function. Thus we do not worry here about ACLs
+ * or EAs. -SHP
+ */
+int presto_permission(struct inode *inode, int mask)
+{
+        unsigned short mode = inode->i_mode;
+        struct presto_cache *cache;
+        int rc;
+
+        ENTRY;
+        if ( presto_can_ilookup() && !(mask & S_IWOTH)) {
+                CDEBUG(D_CACHE, "ilookup on %ld OK\n", inode->i_ino);
+                EXIT;
+                return 0;
+        }
+
+        cache = presto_get_cache(inode);
+
+        if ( cache ) {
+                /* we only override the file/dir permission operations */
+                struct inode_operations *fiops = filter_c2cfiops(cache->cache_filter);
+                struct inode_operations *diops = filter_c2cdiops(cache->cache_filter);
+
+                if ( S_ISREG(mode) && fiops && fiops->permission ) {
+                        EXIT;
+                        return fiops->permission(inode, mask);
+                }
+                if ( S_ISDIR(mode) && diops && diops->permission ) {
+                        EXIT;
+                        return diops->permission(inode, mask);
+                }
+        }
+
+        /* The cache filesystem doesn't have its own permission function,
+         * but we don't want to duplicate the VFS code here.  In order
+         * to avoid looping from permission calling this function again,
+         * we temporarily override the permission operation while we call
+         * the VFS permission function.
+         */
+        inode->i_op->permission = NULL;
+        rc = permission(inode, mask);
+        inode->i_op->permission = &presto_permission;
+
+        EXIT;
+        return rc;
+}
+
+
+int presto_ioctl(struct inode *inode, struct file *file,
+                        unsigned int cmd, unsigned long arg)
+{
+        char buf[1024];
+        struct izo_ioctl_data *data = NULL;
+        struct presto_dentry_data *dd;
+        int rc;
+
+        ENTRY;
+
+        /* Try the filesystem's ioctl first, and return if it succeeded. */
+        dd = presto_d2d(file->f_dentry); 
+        if (dd && dd->dd_fset) { 
+                int (*cache_ioctl)(struct inode *, struct file *, unsigned int, unsigned long ) = filter_c2cdfops(dd->dd_fset->fset_cache->cache_filter)->ioctl;
+                rc = -ENOTTY;
+                if (cache_ioctl)
+                        rc = cache_ioctl(inode, file, cmd, arg);
+                if (rc != -ENOTTY) {
+                        EXIT;
+                        return rc;
+                }
+        }
+
+        if (current->euid != 0 && current->euid != izo_authorized_uid) {
+                EXIT;
+                return -EPERM;
+        }
+
+        memset(buf, 0, sizeof(buf));
+        
+        if (izo_ioctl_getdata(buf, buf + 1024, (void *)arg)) { 
+                CERROR("intermezzo ioctl: data error\n");
+                return -EINVAL;
+        }
+        data = (struct izo_ioctl_data *)buf;
+        
+        switch(cmd) {
+        case IZO_IOC_REINTKML: { 
+                int rc;
+                int cperr;
+                rc = kml_reint_rec(file, data);
+
+                EXIT;
+                cperr = copy_to_user((char *)arg, data, sizeof(*data));
+                if (cperr) { 
+                        CERROR("WARNING: cperr %d\n", cperr); 
+                        rc = -EFAULT;
+                }
+                return rc;
+        }
+
+        case IZO_IOC_GET_RCVD: {
+                struct izo_rcvd_rec rec;
+                struct presto_file_set *fset;
+                int rc;
+
+                fset = presto_fset(file->f_dentry);
+                if (fset == NULL) {
+                        EXIT;
+                        return -ENODEV;
+                }
+                rc = izo_rcvd_get(&rec, fset, data->ioc_uuid);
+                if (rc < 0) {
+                        EXIT;
+                        return rc;
+                }
+
+                EXIT;
+                return copy_to_user((char *)arg, &rec, sizeof(rec))? -EFAULT : 0;
+        }
+
+        case IZO_IOC_REPSTATUS: {
+                __u64 client_kmlsize;
+                struct izo_rcvd_rec *lr_client;
+                struct izo_rcvd_rec rec;
+                struct presto_file_set *fset;
+                int minor;
+                int rc;
+
+                fset = presto_fset(file->f_dentry);
+                if (fset == NULL) {
+                        EXIT;
+                        return -ENODEV;
+                }
+                minor = presto_f2m(fset);
+
+                client_kmlsize = data->ioc_kmlsize;
+                lr_client =  (struct izo_rcvd_rec *) data->ioc_pbuf1;
+
+                rc = izo_repstatus(fset, client_kmlsize, 
+                                       lr_client, &rec);
+                if (rc < 0) {
+                        EXIT;
+                        return rc;
+                }
+
+                EXIT;
+                return copy_to_user((char *)arg, &rec, sizeof(rec))? -EFAULT : 0;
+        }
+
+        case IZO_IOC_GET_CHANNEL: {
+                struct presto_file_set *fset;
+
+                fset = presto_fset(file->f_dentry);
+                if (fset == NULL) {
+                        EXIT;
+                        return -ENODEV;
+                }
+                
+                data->ioc_dev = fset->fset_cache->cache_psdev->uc_minor;
+                CDEBUG(D_PSDEV, "CHANNEL %d\n", data->ioc_dev); 
+                EXIT;
+                return copy_to_user((char *)arg, data, sizeof(*data))? -EFAULT : 0;
+        }
+
+        case IZO_IOC_SET_IOCTL_UID:
+                izo_authorized_uid = data->ioc_uid;
+                EXIT;
+                return 0;
+
+        case IZO_IOC_SET_PID:
+                rc = izo_psdev_setpid(data->ioc_dev);
+                EXIT;
+                return rc;
+
+        case IZO_IOC_SET_CHANNEL:
+                rc = izo_psdev_setchannel(file, data->ioc_dev);
+                EXIT;
+                return rc;
+
+        case IZO_IOC_GET_KML_SIZE: {
+                struct presto_file_set *fset;
+                __u64 kmlsize;
+
+                fset = presto_fset(file->f_dentry);
+                if (fset == NULL) {
+                        EXIT;
+                        return -ENODEV;
+                }
+
+                kmlsize = presto_kml_offset(fset) + fset->fset_kml_logical_off;
+
+                EXIT;
+                return copy_to_user((char *)arg, &kmlsize, sizeof(kmlsize))?-EFAULT : 0;
+        }
+
+        case IZO_IOC_PURGE_FILE_DATA: {
+                struct presto_file_set *fset;
+
+                fset = presto_fset(file->f_dentry);
+                if (fset == NULL) {
+                        EXIT;
+                        return -ENODEV;
+                }
+
+                rc = izo_purge_file(fset, data->ioc_inlbuf1);
+                EXIT;
+                return rc;
+        }
+
+        case IZO_IOC_GET_FILEID: {
+                rc = izo_get_fileid(file, data);
+                EXIT;
+                if (rc)
+                        return rc;
+                return copy_to_user((char *)arg, data, sizeof(*data))? -EFAULT : 0;
+        }
+
+        case IZO_IOC_SET_FILEID: {
+                rc = izo_set_fileid(file, data);
+                EXIT;
+                if (rc)
+                        return rc;
+                return copy_to_user((char *)arg, data, sizeof(*data))? -EFAULT  : 0;
+        }
+
+        case IZO_IOC_ADJUST_LML: { 
+                struct lento_vfs_context *info; 
+                info = (struct lento_vfs_context *)data->ioc_inlbuf1;
+                rc = presto_adjust_lml(file, info); 
+                EXIT;
+                return rc;
+        }
+
+        case IZO_IOC_CONNECT: {
+                struct presto_file_set *fset;
+                int minor;
+
+                fset = presto_fset(file->f_dentry);
+                if (fset == NULL) {
+                        EXIT;
+                        return -ENODEV;
+                }
+                minor = presto_f2m(fset);
+
+                rc = izo_upc_connect(minor, data->ioc_ino,
+                                     data->ioc_generation, data->ioc_uuid,
+                                     data->ioc_flags);
+                EXIT;
+                return rc;
+        }
+
+        case IZO_IOC_GO_FETCH_KML: {
+                struct presto_file_set *fset;
+                int minor;
+
+                fset = presto_fset(file->f_dentry);
+                if (fset == NULL) {
+                        EXIT;
+                        return -ENODEV;
+                }
+                minor = presto_f2m(fset);
+
+                rc = izo_upc_go_fetch_kml(minor, fset->fset_name,
+                                          data->ioc_uuid, data->ioc_kmlsize);
+                EXIT;
+                return rc;
+        }
+
+        case IZO_IOC_REVOKE_PERMIT:
+                if (data->ioc_flags)
+                        rc = izo_revoke_permit(file->f_dentry, data->ioc_uuid);
+                else
+                        rc = izo_revoke_permit(file->f_dentry, NULL);
+                EXIT;
+                return rc;
+
+        case IZO_IOC_CLEAR_FSET:
+                rc = izo_clear_fsetroot(file->f_dentry);
+                EXIT;
+                return rc;
+
+        case IZO_IOC_CLEAR_ALL_FSETS: { 
+                struct presto_file_set *fset;
+
+                fset = presto_fset(file->f_dentry);
+                if (fset == NULL) {
+                        EXIT;
+                        return -ENODEV;
+                }
+
+                rc = izo_clear_all_fsetroots(fset->fset_cache);
+                EXIT;
+                return rc;
+        }
+
+        case IZO_IOC_SET_FSET:
+                /*
+                 * Mark this dentry as being a fileset root.
+                 */
+                rc = presto_set_fsetroot_from_ioc(file->f_dentry, 
+                                                  data->ioc_inlbuf1,
+                                                  data->ioc_flags);
+                EXIT;
+                return rc;
+
+
+        case IZO_IOC_MARK: {
+                int res = 0;  /* resulting flags - returned to user */
+                int error;
+
+                CDEBUG(D_DOWNCALL, "mark inode: %ld, and: %x, or: %x, what %d\n",
+                       file->f_dentry->d_inode->i_ino, data->ioc_and_flag,
+                       data->ioc_or_flag, data->ioc_mark_what);
+
+                switch (data->ioc_mark_what) {
+                case MARK_DENTRY:               
+                        error = izo_mark_dentry(file->f_dentry,
+                                                   data->ioc_and_flag,
+                                                   data->ioc_or_flag, &res);
+                        break;
+                case MARK_FSET:
+                        error = izo_mark_fset(file->f_dentry,
+                                                 data->ioc_and_flag,
+                                                 data->ioc_or_flag, &res);
+                        break;
+                case MARK_CACHE:
+                        error = izo_mark_cache(file->f_dentry,
+                                                  data->ioc_and_flag,
+                                                  data->ioc_or_flag, &res);
+                        break;
+                case MARK_GETFL: {
+                        int fflags, cflags;
+                        data->ioc_and_flag = 0xffffffff;
+                        data->ioc_or_flag = 0; 
+                        error = izo_mark_dentry(file->f_dentry,
+                                                   data->ioc_and_flag,
+                                                   data->ioc_or_flag, &res);
+                        if (error) 
+                                break;
+                        error = izo_mark_fset(file->f_dentry,
+                                                 data->ioc_and_flag,
+                                                 data->ioc_or_flag, &fflags);
+                        if (error) 
+                                break;
+                        error = izo_mark_cache(file->f_dentry,
+                                                  data->ioc_and_flag,
+                                                  data->ioc_or_flag,
+                                                  &cflags);
+
+                        if (error) 
+                                break;
+                        data->ioc_and_flag = fflags;
+                        data->ioc_or_flag = cflags;
+                        break;
+                }
+                default:
+                        error = -EINVAL;
+                }
+
+                if (error) { 
+                        EXIT;
+                        return error;
+                }
+                data->ioc_mark_what = res;
+                CDEBUG(D_DOWNCALL, "mark inode: %ld, and: %x, or: %x, what %x\n",
+                       file->f_dentry->d_inode->i_ino, data->ioc_and_flag,
+                       data->ioc_or_flag, data->ioc_mark_what);
+
+                EXIT;
+                return copy_to_user((char *)arg, data, sizeof(*data))? -EFAULT : 0;
+        }
+#if 0
+        case IZO_IOC_CLIENT_MAKE_BRANCH: {
+                struct presto_file_set *fset;
+                int minor;
+
+                fset = presto_fset(file->f_dentry);
+                if (fset == NULL) {
+                        EXIT;
+                        return -ENODEV;
+                }
+                minor = presto_f2m(fset);
+
+                rc = izo_upc_client_make_branch(minor, fset->fset_name,
+                                                data->ioc_inlbuf1,
+                                                data->ioc_inlbuf2);
+                EXIT;
+                return rc;
+        }
+#endif
+        case IZO_IOC_SERVER_MAKE_BRANCH: {
+                struct presto_file_set *fset;
+                int minor;
+
+                fset = presto_fset(file->f_dentry);
+                if (fset == NULL) {
+                        EXIT;
+                        return -ENODEV;
+                }
+                minor = presto_f2m(fset);
+
+                izo_upc_server_make_branch(minor, data->ioc_inlbuf1);
+                EXIT;
+                return 0;
+        }
+        case IZO_IOC_SET_KMLSIZE: {
+                struct presto_file_set *fset;
+                int minor;
+                struct izo_rcvd_rec rec;
+
+                fset = presto_fset(file->f_dentry);
+                if (fset == NULL) {
+                        EXIT;
+                        return -ENODEV;
+                }
+                minor = presto_f2m(fset);
+
+                rc = izo_upc_set_kmlsize(minor, fset->fset_name, data->ioc_uuid,
+                                         data->ioc_kmlsize);
+
+                if (rc != 0) {
+                        EXIT;
+                        return rc;
+                }
+
+                rc = izo_rcvd_get(&rec, fset, data->ioc_uuid);
+                if (rc == -EINVAL) {
+                        /* We don't know anything about this uuid yet; no
+                         * worries. */
+                        memset(&rec, 0, sizeof(rec));
+                } else if (rc <= 0) {
+                        CERROR("InterMezzo: error reading last_rcvd: %d\n", rc);
+                        EXIT;
+                        return rc;
+                }
+                rec.lr_remote_offset = data->ioc_kmlsize;
+                rc = izo_rcvd_write(fset, &rec);
+                if (rc <= 0) {
+                        CERROR("InterMezzo: error writing last_rcvd: %d\n", rc);
+                        EXIT;
+                        return rc;
+                }
+                EXIT;
+                return rc;
+        }
+        case IZO_IOC_BRANCH_UNDO: {
+                struct presto_file_set *fset;
+                int minor;
+
+                fset = presto_fset(file->f_dentry);
+                if (fset == NULL) {
+                        EXIT;
+                        return -ENODEV;
+                }
+                minor = presto_f2m(fset);
+
+                rc = izo_upc_branch_undo(minor, fset->fset_name,
+                                         data->ioc_inlbuf1);
+                EXIT;
+                return rc;
+        }
+        case IZO_IOC_BRANCH_REDO: {
+                struct presto_file_set *fset;
+                int minor;
+
+                fset = presto_fset(file->f_dentry);
+                if (fset == NULL) {
+                        EXIT;
+                        return -ENODEV;
+                }
+                minor = presto_f2m(fset);
+
+                rc = izo_upc_branch_redo(minor, fset->fset_name,
+                                         data->ioc_inlbuf1);
+                EXIT;
+                return rc;
+        }
+
+        case TCGETS:
+                EXIT;
+                return -EINVAL;
+
+        default:
+                EXIT;
+                return -EINVAL;
+                
+        }
+        EXIT;
+        return 0;
+}
+
+struct file_operations presto_dir_fops = {
+        .ioctl =  presto_ioctl
+};
+
+struct inode_operations presto_dir_iops = {
+        .create       = presto_create,
+        .lookup       = presto_lookup,
+        .link         = presto_link,
+        .unlink       = presto_unlink,
+        .symlink      = presto_symlink,
+        .mkdir        = presto_mkdir,
+        .rmdir        = presto_rmdir,
+        .mknod        = presto_mknod,
+        .rename       = presto_rename,
+        .permission   = presto_permission,
+        .setattr      = presto_setattr,
+#ifdef CONFIG_FS_EXT_ATTR
+        .set_ext_attr = presto_set_ext_attr,
+#endif
+};
+
+
diff --git a/fs/intermezzo/ext_attr.c b/fs/intermezzo/ext_attr.c
new file mode 100644
index 00000000000000..b14d028852c562
--- /dev/null
+++ b/fs/intermezzo/ext_attr.c
@@ -0,0 +1,205 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ * 
+ *  Copyright (C) 2001 Tacit Networks, Inc.
+ *    Author: Shirish H. Phatak <shirish@tacitnetworks.com>
+ *
+ *   This file is part of InterMezzo, http://www.inter-mezzo.org.
+ *
+ *   InterMezzo is free software; you can redistribute it and/or
+ *   modify it under the terms of version 2 of the GNU General Public
+ *   License as published by the Free Software Foundation.
+ *
+ *   InterMezzo is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with InterMezzo; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Extended attribute handling for presto.
+ */
+
+#define __NO_VERSION__
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/string.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <linux/unistd.h>
+
+#include <asm/system.h>
+#include <asm/uaccess.h>
+
+#include <linux/fs.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <linux/string.h>
+#include <asm/uaccess.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <asm/segment.h>
+#include <linux/smp_lock.h>
+
+#include <linux/intermezzo_fs.h>
+#include <linux/intermezzo_psdev.h>
+
+#ifdef CONFIG_FS_EXT_ATTR
+#include <linux/ext_attr.h>
+
+extern inline void presto_debug_fail_blkdev(struct presto_file_set *fset,
+                                            unsigned long value);
+
+
+/* VFS interface */
+/* XXX! Fixme test for user defined attributes */
+int presto_set_ext_attr(struct inode *inode, 
+                        const char *name, void *buffer,
+                        size_t buffer_len, int flags) 
+{
+        int error;
+        struct presto_cache *cache;
+        struct presto_file_set *fset;
+        struct lento_vfs_context info;
+        struct dentry *dentry;
+        int minor = presto_i2m(inode);
+        char *buf = NULL;
+
+        ENTRY;
+        if (minor < 0) {
+                EXIT;
+                return -1;
+        }
+
+        if ( ISLENTO(minor) ) {
+                EXIT;
+                return -EINVAL;
+        }
+
+        /* BAD...vfs should really pass down the dentry to use, especially
+         * since every other operation in iops does. But for now
+         * we do a reverse mapping from inode to the first dentry 
+         */
+        if (list_empty(&inode->i_dentry)) {
+                CERROR("No alias for inode %d\n", (int) inode->i_ino);
+                EXIT;
+                return -EINVAL;
+        }
+
+        dentry = list_entry(inode->i_dentry.next, struct dentry, d_alias);
+
+        error = presto_prep(dentry, &cache, &fset);
+        if ( error ) {
+                EXIT;
+                return error;
+        }
+
+        if ((buffer != NULL) && (buffer_len != 0)) {
+            /* If buffer is a user space pointer copy it to kernel space
+            * and reset the flag. We do this since the journal functions need
+            * access to the contents of the buffer, and the file system
+            * does not care. When we actually invoke the function, we remove
+            * the EXT_ATTR_FLAG_USER flag.
+            *
+            * XXX:Check if the "fs does not care" assertion is always true -SHP
+            * (works for ext3)
+            */
+            if (flags & EXT_ATTR_FLAG_USER) {
+                PRESTO_ALLOC(buf, buffer_len);
+                if (!buf) {
+                        CERROR("InterMezzo: out of memory!!!\n");
+                        return -ENOMEM;
+                }
+                error = copy_from_user(buf, buffer, buffer_len);
+                if (error) 
+                        return -EFAULT;
+            } else 
+                buf = buffer;
+        } else
+                buf = buffer;
+
+        if ( presto_get_permit(inode) < 0 ) {
+                EXIT;
+                if (buffer_len && (flags & EXT_ATTR_FLAG_USER))
+                        PRESTO_FREE(buf, buffer_len);
+                return -EROFS;
+        }
+
+        /* Simulate presto_setup_info */
+        memset(&info, 0, sizeof(info));
+        /* For now redundant..but we keep it around just in case */
+        info.flags = LENTO_FL_IGNORE_TIME;
+        if (!ISLENTO(cache->cache_psdev->uc_minor))
+            info.flags |= LENTO_FL_KML;
+
+        /* We pass in the kernel space pointer and reset the 
+         * EXT_ATTR_FLAG_USER flag.
+         * See comments above. 
+         */ 
+        /* Note that mode is already set by VFS so we send in a NULL */
+        error = presto_do_set_ext_attr(fset, dentry, name, buf,
+                                       buffer_len, flags & ~EXT_ATTR_FLAG_USER,
+                                       NULL, &info);
+        presto_put_permit(inode);
+
+        if (buffer_len && (flags & EXT_ATTR_FLAG_USER))
+                PRESTO_FREE(buf, buffer_len);
+        EXIT;
+        return error;
+}
+
+/* Lento Interface */
+/* XXX: ignore flags? We should be forcing these operations through? -SHP*/
+int lento_set_ext_attr(const char *path, const char *name, 
+                       void *buffer, size_t buffer_len, int flags, mode_t mode, 
+                       struct lento_vfs_context *info) 
+{
+        int error;
+        char * pathname;
+        struct nameidata nd;
+        struct dentry *dentry;
+        struct presto_file_set *fset;
+
+        ENTRY;
+        lock_kernel();
+
+        pathname=getname(path);
+        error = PTR_ERR(pathname);
+        if (IS_ERR(pathname)) {
+                EXIT;
+                goto exit;
+        }
+
+        /* Note that ext_attrs apply to both files and directories..*/
+        error=presto_walk(pathname,&nd);
+        if (error) 
+		goto exit;
+        dentry = nd.dentry;
+
+        fset = presto_fset(dentry);
+        error = -EINVAL;
+        if ( !fset ) {
+                CERROR("No fileset!\n");
+                EXIT;
+                goto exit_dentry;
+        }
+
+        if (buffer==NULL) buffer_len=0;
+
+        error = presto_do_set_ext_attr(fset, dentry, name, buffer,
+                                       buffer_len, flags, &mode, info);
+exit_dentry:
+        path_release(&nd);
+exit_path:
+        putname(pathname);
+exit:
+        unlock_kernel();
+        return error; 
+}
+
+#endif /*CONFIG_FS_EXT_ATTR*/
diff --git a/fs/intermezzo/file.c b/fs/intermezzo/file.c
new file mode 100644
index 00000000000000..0f826926c29648
--- /dev/null
+++ b/fs/intermezzo/file.c
@@ -0,0 +1,539 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ *  Copyright (C) 2000 Stelias Computing, Inc.
+ *  Copyright (C) 2000 Red Hat, Inc.
+ *  Copyright (C) 2000 TurboLinux, Inc.
+ *  Copyright (C) 2000 Los Alamos National Laboratory.
+ *  Copyright (C) 2000, 2001 Tacit Networks, Inc.
+ *  Copyright (C) 2000 Peter J. Braam
+ *  Copyright (C) 2001 Mountain View Data, Inc. 
+ *  Copyright (C) 2001 Cluster File Systems, Inc. 
+ *
+ *   This file is part of InterMezzo, http://www.inter-mezzo.org.
+ *
+ *   InterMezzo is free software; you can redistribute it and/or
+ *   modify it under the terms of version 2 of the GNU General Public
+ *   License as published by the Free Software Foundation.
+ *
+ *   InterMezzo is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with InterMezzo; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *  This file manages file I/O
+ * 
+ */
+
+#include <stdarg.h>
+
+#include <asm/bitops.h>
+#include <asm/uaccess.h>
+#include <asm/system.h>
+
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/ext2_fs.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/sched.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <linux/locks.h>
+#include <linux/blkdev.h>
+#include <linux/init.h>
+#include <linux/smp_lock.h>
+#define __NO_VERSION__
+#include <linux/module.h>
+
+#include <linux/intermezzo_fs.h>
+#include <linux/intermezzo_psdev.h>
+#include <linux/fsfilter.h>
+/*
+ * these are initialized in super.c
+ */
+extern int presto_permission(struct inode *inode, int mask);
+
+
+static int presto_open_upcall(int minor, struct dentry *de)
+{
+        int rc = 0;
+        char *path, *buffer;
+        struct presto_file_set *fset;
+        int pathlen;
+        struct lento_vfs_context info;
+        struct presto_dentry_data *dd = presto_d2d(de);
+
+        PRESTO_ALLOC(buffer, PAGE_SIZE);
+        if ( !buffer ) {
+                CERROR("PRESTO: out of memory!\n");
+                return -ENOMEM;
+        }
+        fset = presto_fset(de);
+        path = presto_path(de, fset->fset_dentry, buffer, PAGE_SIZE);
+        pathlen = MYPATHLEN(buffer, path);
+        
+        CDEBUG(D_FILE, "de %p, dd %p\n", de, dd);
+        if (dd->remote_ino == 0) {
+                rc = presto_get_fileid(minor, fset, de);
+        }
+        memset (&info, 0, sizeof(info));
+        if (dd->remote_ino > 0) {
+                info.remote_ino = dd->remote_ino;
+                info.remote_generation = dd->remote_generation;
+        } else
+                CERROR("get_fileid failed %d, ino: %Lx, fetching by name\n", rc,
+                       dd->remote_ino);
+
+        rc = izo_upc_open(minor, pathlen, path, fset->fset_name, &info);
+        PRESTO_FREE(buffer, PAGE_SIZE);
+        return rc;
+}
+
+static inline int open_check_dod(struct file *file,
+                                 struct presto_file_set *fset)
+{
+        int gen, is_iopen = 0, minor;
+        struct presto_cache *cache = fset->fset_cache;
+        ino_t inum;
+
+        minor = presto_c2m(cache);
+
+        if ( ISLENTO(minor) ) {
+                CDEBUG(D_CACHE, "is lento, not doing DOD.\n");
+                return 0;
+        }
+
+        /* Files are only ever opened by inode during backfetches, when by
+         * definition we have the authoritative copy of the data.  No DOD. */
+        is_iopen = izo_dentry_is_ilookup(file->f_dentry, &inum, &gen);
+
+        if (is_iopen) {
+                CDEBUG(D_CACHE, "doing iopen, not doing DOD.\n");
+                return 0;
+        }
+
+        if (!(fset->fset_flags & FSET_DATA_ON_DEMAND)) {
+                CDEBUG(D_CACHE, "fileset not on demand.\n");
+                return 0;
+        }
+                
+        if (file->f_flags & O_TRUNC) {
+                CDEBUG(D_CACHE, "fileset dod: O_TRUNC.\n");
+                return 0;
+        }
+                
+        if (presto_chk(file->f_dentry, PRESTO_DONT_JOURNAL)) {
+                CDEBUG(D_CACHE, "file under .intermezzo, not doing DOD\n");
+                return 0;
+        }
+
+        if (presto_chk(file->f_dentry, PRESTO_DATA)) {
+                CDEBUG(D_CACHE, "PRESTO_DATA is set, not doing DOD.\n");
+                return 0;
+        }
+
+        if (cache->cache_filter->o_trops->tr_all_data(file->f_dentry->d_inode)) {
+                CDEBUG(D_CACHE, "file not sparse, not doing DOD.\n");
+                return 0;
+        }
+
+        return 1;
+}
+
+static int presto_file_open(struct inode *inode, struct file *file)
+{
+        int rc = 0;
+        struct file_operations *fops;
+        struct presto_cache *cache;
+        struct presto_file_set *fset;
+        struct presto_file_data *fdata;
+        int writable = (file->f_flags & (O_RDWR | O_WRONLY));
+        int minor, i;
+
+        ENTRY;
+
+        if (presto_prep(file->f_dentry, &cache, &fset) < 0) {
+                EXIT;
+                return -EBADF;
+        }
+
+        minor = presto_c2m(cache);
+
+        CDEBUG(D_CACHE, "DATA_OK: %d, ino: %ld, islento: %d\n",
+               presto_chk(file->f_dentry, PRESTO_DATA), inode->i_ino,
+               ISLENTO(minor));
+
+        if ( !ISLENTO(minor) && (file->f_flags & O_RDWR ||
+                                 file->f_flags & O_WRONLY)) {
+                CDEBUG(D_CACHE, "calling presto_get_permit\n");
+                if ( presto_get_permit(inode) < 0 ) {
+                        EXIT;
+                        return -EROFS;
+                }
+                presto_put_permit(inode);
+        }
+
+        if (open_check_dod(file, fset)) {
+                CDEBUG(D_CACHE, "presto_open_upcall\n");
+                CDEBUG(D_CACHE, "dentry: %p setting DATA, ATTR\n", file->f_dentry);
+                presto_set(file->f_dentry, PRESTO_ATTR | PRESTO_DATA);
+                rc = presto_open_upcall(minor, file->f_dentry);
+                if (rc) {
+                        EXIT;
+                        CERROR("%s: returning error %d\n", __FUNCTION__, rc);
+                        return rc;
+                }
+
+        }
+
+        /* file was truncated upon open: do not refetch */
+        if (file->f_flags & O_TRUNC) { 
+                CDEBUG(D_CACHE, "setting DATA, ATTR\n");
+                presto_set(file->f_dentry, PRESTO_ATTR | PRESTO_DATA);
+        }
+
+        fops = filter_c2cffops(cache->cache_filter);
+        if ( fops->open ) {
+                CDEBUG(D_CACHE, "calling fs open\n");
+                rc = fops->open(inode, file);
+
+                if (rc) {
+                        EXIT;
+                        return rc;
+                }
+        }
+
+        if (writable) {
+                PRESTO_ALLOC(fdata, sizeof(*fdata));
+                if (!fdata) {
+                        EXIT;
+                        return -ENOMEM;
+                }
+                /* LOCK: XXX check that the kernel lock protects this alloc */
+                fdata->fd_do_lml = 0;
+                fdata->fd_bytes_written = 0;
+                fdata->fd_fsuid = current->fsuid;
+                fdata->fd_fsgid = current->fsgid;
+                fdata->fd_mode = file->f_dentry->d_inode->i_mode;
+                fdata->fd_uid = file->f_dentry->d_inode->i_uid;
+                fdata->fd_gid = file->f_dentry->d_inode->i_gid;
+                fdata->fd_ngroups = current->ngroups;
+                for (i=0 ; i < current->ngroups ; i++)
+                        fdata->fd_groups[i] = current->groups[i];
+                if (!ISLENTO(minor)) 
+                        fdata->fd_info.flags = LENTO_FL_KML; 
+                else { 
+                        /* this is for the case of DOD, 
+                           reint_close will adjust flags if needed */
+                        fdata->fd_info.flags = 0;
+                }
+
+                presto_getversion(&fdata->fd_version, inode);
+                file->private_data = fdata;
+        } else {
+                file->private_data = NULL;
+        }
+
+        EXIT;
+        return 0;
+}
+
+int presto_adjust_lml(struct file *file, struct lento_vfs_context *info)
+{
+        struct presto_file_data *fdata = 
+                (struct presto_file_data *) file->private_data;
+
+        if (!fdata) { 
+                EXIT;
+                return -EINVAL;
+        }
+                
+        memcpy(&fdata->fd_info, info, sizeof(*info));
+        EXIT;
+        return 0; 
+}
+
+
+static int presto_file_release(struct inode *inode, struct file *file)
+{
+        int rc;
+        struct file_operations *fops;
+        struct presto_cache *cache;
+        struct presto_file_set *fset;
+        struct presto_file_data *fdata = 
+                (struct presto_file_data *)file->private_data;
+        ENTRY;
+
+        rc = presto_prep(file->f_dentry, &cache, &fset);
+        if ( rc ) {
+                EXIT;
+                return rc;
+        }
+
+        fops = filter_c2cffops(cache->cache_filter);
+        if (fops && fops->release)
+                rc = fops->release(inode, file);
+
+        CDEBUG(D_CACHE, "islento = %d (minor %d), rc %d, data %p\n",
+               ISLENTO(cache->cache_psdev->uc_minor), 
+               cache->cache_psdev->uc_minor, rc, fdata);
+
+        /* this file was modified: ignore close errors, write KML */
+        if (fdata && fdata->fd_do_lml) {
+                /* XXX: remove when lento gets file granularity cd */
+                if ( presto_get_permit(inode) < 0 ) {
+                        EXIT;
+                        return -EROFS;
+                }
+        
+                fdata->fd_info.updated_time = file->f_dentry->d_inode->i_mtime;
+                rc = presto_do_close(fset, file); 
+                presto_put_permit(inode);
+        }
+
+        if (!rc && fdata) {
+                PRESTO_FREE(fdata, sizeof(*fdata));
+                file->private_data = NULL; 
+        }
+        
+        EXIT;
+        return rc;
+}
+
+static void presto_apply_write_policy(struct file *file,
+                                      struct presto_file_set *fset, loff_t res)
+{
+        struct presto_file_data *fdata =
+                (struct presto_file_data *)file->private_data;
+        struct presto_cache *cache = fset->fset_cache;
+        struct presto_version new_file_ver;
+        int error;
+        struct rec_info rec;
+
+        /* Here we do a journal close after a fixed or a specified
+         amount of KBytes, currently a global parameter set with
+         sysctl. If files are open for a long time, this gives added
+         protection. (XXX todo: per cache, add ioctl, handle
+         journaling in a thread, add more options etc.)
+        */ 
+ 
+        if ((fset->fset_flags & FSET_JCLOSE_ON_WRITE) &&
+            (!ISLENTO(cache->cache_psdev->uc_minor))) {
+                fdata->fd_bytes_written += res;
+ 
+                if (fdata->fd_bytes_written >= fset->fset_file_maxio) {
+                        presto_getversion(&new_file_ver,
+                                          file->f_dentry->d_inode);
+                        /* This is really heavy weight and should be fixed
+                           ASAP. At most we should be recording the number
+                           of bytes written and not locking the kernel, 
+                           wait for permits, etc, on the write path. SHP
+                        */
+                        lock_kernel();
+                        if ( presto_get_permit(file->f_dentry->d_inode) < 0 ) {
+                                EXIT;
+                                /* we must be disconnected, not to worry */
+                                unlock_kernel();
+                                return; 
+                        }
+                        error = presto_journal_close(&rec, fset, file,
+                                                     file->f_dentry,
+                                                     &fdata->fd_version,
+                                                     &new_file_ver);
+                        presto_put_permit(file->f_dentry->d_inode);
+                        unlock_kernel();
+                        if ( error ) {
+                                CERROR("presto_close: cannot journal close\n");
+                                /* XXX these errors are really bad */
+                                /* panic(); */
+                                return;
+                        }
+                        fdata->fd_bytes_written = 0;
+                }
+        }
+}
+
+static ssize_t presto_file_write(struct file *file, const char *buf,
+                                 size_t size, loff_t *off)
+{
+        struct rec_info rec;
+        int error;
+        struct presto_cache *cache;
+        struct presto_file_set *fset;
+        struct file_operations *fops;
+        ssize_t res;
+        int do_lml_here;
+        void *handle = NULL;
+        unsigned long blocks;
+        struct presto_file_data *fdata;
+        loff_t res_size; 
+
+        error = presto_prep(file->f_dentry, &cache, &fset);
+        if ( error ) {
+                EXIT;
+                return error;
+        }
+
+        blocks = (size >> file->f_dentry->d_inode->i_sb->s_blocksize_bits) + 1;
+        /* XXX 3 is for ext2 indirect blocks ... */ 
+        res_size = 2 * PRESTO_REQHIGH + ((blocks+3) 
+                << file->f_dentry->d_inode->i_sb->s_blocksize_bits);
+
+        error = presto_reserve_space(fset->fset_cache, res_size); 
+        CDEBUG(D_INODE, "Reserved %Ld for %d\n", res_size, size); 
+        if ( error ) { 
+                EXIT;
+                return -ENOSPC;
+        }
+
+        CDEBUG(D_INODE, "islento %d, minor: %d\n", 
+               ISLENTO(cache->cache_psdev->uc_minor),
+               cache->cache_psdev->uc_minor); 
+
+        /* 
+         *  XXX this lock should become a per inode lock when 
+         *  Vinny's changes are in; we could just use i_sem.
+         */
+        read_lock(&fset->fset_lml.fd_lock); 
+        fdata = (struct presto_file_data *)file->private_data;
+        do_lml_here = size && (fdata->fd_do_lml == 0) &&
+                !presto_chk(file->f_dentry, PRESTO_DONT_JOURNAL);
+
+        if (do_lml_here)
+                fdata->fd_do_lml = 1;
+        read_unlock(&fset->fset_lml.fd_lock); 
+
+        /* XXX 
+           There might be a bug here.  We need to make 
+           absolutely sure that the ext3_file_write commits 
+           after our transaction that writes the LML record.
+           Nesting the file write helps if new blocks are allocated. 
+        */
+        res = 0;
+        if (do_lml_here) {
+                struct presto_version file_version;
+                /* handle different space reqs from file system below! */
+                handle = presto_trans_start(fset, file->f_dentry->d_inode, 
+                                            KML_OPCODE_WRITE);
+                if ( IS_ERR(handle) ) {
+                        presto_release_space(fset->fset_cache, res_size); 
+                        CERROR("presto_write: no space for transaction\n");
+                        return -ENOSPC;
+                }
+
+                presto_getversion(&file_version, file->f_dentry->d_inode); 
+                res = presto_write_lml_close(&rec, fset, file, 
+                                             fdata->fd_info.remote_ino, 
+                                             fdata->fd_info.remote_generation, 
+                                             &fdata->fd_info.remote_version, 
+                                             &file_version);
+                fdata->fd_lml_offset = rec.offset;
+                if ( res ) {
+                        CERROR("intermezzo: PANIC failed to write LML\n");
+                        *(int *)0 = 1;
+                        EXIT;
+                        goto exit_write;
+                }
+                presto_trans_commit(fset, handle);
+        }
+
+        fops = filter_c2cffops(cache->cache_filter);
+        res = fops->write(file, buf, size, off);
+        if ( res != size ) {
+                CDEBUG(D_FILE, "file write returns short write: size %d, res %d\n", size, res); 
+        }
+
+        if ( (res > 0) && fdata ) 
+                 presto_apply_write_policy(file, fset, res);
+
+ exit_write:
+        presto_release_space(fset->fset_cache, res_size); 
+        return res;
+}
+
+struct file_operations presto_file_fops = {
+        .write   = presto_file_write,
+        .open    = presto_file_open,
+        .release = presto_file_release,
+        .ioctl   = presto_ioctl
+};
+
+struct inode_operations presto_file_iops = {
+        .permission   = presto_permission,
+        .setattr      = presto_setattr,
+#ifdef CONFIG_FS_EXT_ATTR
+        .set_ext_attr = presto_set_ext_attr,
+#endif
+};
+
+/* FIXME: I bet we want to add a lock here and in presto_file_open. */
+int izo_purge_file(struct presto_file_set *fset, char *file)
+{
+#if 0
+        void *handle = NULL;
+        char *path = NULL;
+        struct nameidata nd;
+        struct dentry *dentry;
+        int rc = 0, len;
+        loff_t oldsize;
+
+        /* FIXME: not mtpt it's gone */
+        len = strlen(fset->fset_cache->cache_mtpt) + strlen(file) + 1;
+        PRESTO_ALLOC(path, len + 1);
+        if (path == NULL)
+                return -1;
+
+        sprintf(path, "%s/%s", fset->fset_cache->cache_mtpt, file);
+        rc = izo_lookup_file(fset, path, &nd);
+        if (rc)
+                goto error;
+        dentry = nd.dentry;
+
+        /* FIXME: take a lock here */
+
+        if (dentry->d_inode->i_atime > CURRENT_TIME - 5) {
+                /* We lost the race; this file was accessed while we were doing
+                 * ioctls and lookups and whatnot. */
+                rc = -EBUSY;
+                goto error_unlock;
+        }
+
+        /* FIXME: Check if this file is open. */
+
+        handle = presto_trans_start(fset, dentry->d_inode, KML_OPCODE_TRUNC);
+        if (IS_ERR(handle)) {
+                rc = -ENOMEM;
+                goto error_unlock;
+        }
+
+        /* FIXME: Write LML record */
+
+        oldsize = dentry->d_inode->i_size;
+        rc = izo_do_truncate(fset, dentry, 0, oldsize);
+        if (rc != 0)
+                goto error_clear;
+        rc = izo_do_truncate(fset, dentry, oldsize, 0);
+        if (rc != 0)
+                goto error_clear;
+
+ error_clear:
+        /* FIXME: clear LML record */
+
+ error_unlock:
+        /* FIXME: release the lock here */
+
+ error:
+        if (handle != NULL && !IS_ERR(handle))
+                presto_trans_commit(fset, handle);
+        if (path != NULL)
+                PRESTO_FREE(path, len + 1);
+        return rc;
+#else
+        return 0;
+#endif
+}
diff --git a/fs/intermezzo/fileset.c b/fs/intermezzo/fileset.c
new file mode 100644
index 00000000000000..ebfa7e02d7ac4a
--- /dev/null
+++ b/fs/intermezzo/fileset.c
@@ -0,0 +1,677 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ *  Copyright (C) 2001 Cluster File Systems, Inc. <braam@clusterfs.com>
+ *
+ *   This file is part of InterMezzo, http://www.inter-mezzo.org.
+ *
+ *   InterMezzo is free software; you can redistribute it and/or
+ *   modify it under the terms of version 2 of the GNU General Public
+ *   License as published by the Free Software Foundation.
+ *
+ *   InterMezzo is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with InterMezzo; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *  Managing filesets
+ *
+ */
+
+#define __NO_VERSION__
+#include <stdarg.h>
+
+#include <asm/bitops.h>
+#include <asm/uaccess.h>
+#include <asm/system.h>
+
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/ext2_fs.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/sched.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <linux/locks.h>
+#include <linux/blkdev.h>
+#include <linux/init.h>
+#include <linux/module.h>
+
+#include <linux/intermezzo_fs.h>
+#include <linux/intermezzo_psdev.h>
+
+static inline struct presto_file_set *presto_dentry2fset(struct dentry *dentry)
+{
+        if (presto_d2d(dentry) == NULL) {
+                EXIT;
+                return NULL;
+        }
+        return presto_d2d(dentry)->dd_fset;
+}
+
+/* find the fileset dentry for this dentry */
+struct presto_file_set *presto_fset(struct dentry *de)
+{
+        struct dentry *fsde;
+        ENTRY;
+        if ( !de->d_inode ) {
+                /* FIXME: is this ok to be NULL? */
+                CDEBUG(D_INODE,"presto_fset: warning %*s has NULL inode.\n",
+                de->d_name.len, de->d_name.name);
+        }
+        for (fsde = de;; fsde = fsde->d_parent) {
+                if ( presto_dentry2fset(fsde) ) {
+                        EXIT;
+                        return presto_dentry2fset(fsde);
+                }
+                if (fsde->d_parent == fsde)
+                        break;
+        }
+        EXIT;
+        return NULL;
+}
+
+int presto_get_lastrecno(char *path, off_t *recno)
+{
+        struct nameidata nd; 
+        struct presto_file_set *fset;
+        struct dentry *dentry;
+        int error;
+        ENTRY;
+
+        error = presto_walk(path, &nd);
+        if (error) {
+                EXIT;
+                return error;
+        }
+
+        dentry = nd.dentry;
+
+        error = -ENXIO;
+        if ( !presto_ispresto(dentry->d_inode) ) {
+                EXIT;
+                goto kml_out;
+        }
+
+        error = -EINVAL;
+        if ( ! presto_dentry2fset(dentry)) {
+                EXIT;
+                goto kml_out;
+        }
+
+        fset = presto_dentry2fset(dentry);
+        if (!fset) {
+                EXIT;
+                goto kml_out;
+        }
+        error = 0;
+        *recno = fset->fset_kml.fd_recno;
+
+ kml_out:
+        path_release(&nd);
+        return error;
+}
+
+static char * _izo_make_path(char *fsetname, char *name)
+{
+        char *path = NULL;
+        int len;
+
+        len = strlen("/.intermezzo/") + strlen(fsetname) 
+                + 1 + strlen(name) + 1;
+
+        PRESTO_ALLOC(path, len);
+        if (path == NULL)
+                return NULL;
+
+        sprintf(path, "/.intermezzo/%s/%s", fsetname, name);
+
+        return path;
+}
+
+char * izo_make_path(struct presto_file_set *fset, char *name)
+{
+        return _izo_make_path(fset->fset_name, name);
+}
+
+static struct file *_izo_fset_open(char *fsetname, char *name, int flags, int mode) 
+{
+        char *path;
+        struct file *f;
+        int error;
+        ENTRY;
+
+        path = _izo_make_path(fsetname, name);
+        if (path == NULL) {
+                EXIT;
+                return ERR_PTR(-ENOMEM);
+        }
+
+        CDEBUG(D_INODE, "opening file %s\n", path);
+        f = filp_open(path, flags, mode);
+        error = PTR_ERR(f);
+        if (IS_ERR(f)) {
+                CDEBUG(D_INODE, "Error %d\n", error);
+        }
+
+        PRESTO_FREE(path, strlen(path)+1);
+
+        EXIT;
+        return f;
+
+}
+
+struct file *izo_fset_open(struct presto_file_set *fset, char *name, int flags, int mode) 
+{
+        return _izo_fset_open(fset->fset_name, name, flags, mode);
+}
+
+
+
+/*
+ *  note: this routine "pins" a dentry for a fileset root
+ */
+int presto_set_fsetroot(struct dentry *ioctl_dentry, char *fsetname,
+                        unsigned int flags)
+{
+        struct presto_file_set *fset = NULL;
+        struct presto_cache *cache;
+        int error;
+        struct file  *fset_root;
+        struct dentry *dentry;
+
+        ENTRY;
+
+        fset_root = _izo_fset_open(fsetname, "ROOT",  O_RDONLY, 000);
+        if (IS_ERR(fset_root)) {
+                CERROR("Can't open %s/ROOT\n", fsetname);
+                EXIT;
+                error = PTR_ERR(fset_root);
+                goto out;
+        }
+        dentry = dget(fset_root->f_dentry);
+        filp_close(fset_root, NULL);
+
+        dentry->d_inode->i_op = ioctl_dentry->d_inode->i_op;
+        dentry->d_inode->i_fop = ioctl_dentry->d_inode->i_fop;
+        dentry->d_op = ioctl_dentry->d_op;
+        fset = presto_dentry2fset(dentry);
+        if (fset && (fset->fset_dentry == dentry) ) { 
+                CERROR("Fsetroot already set (inode %ld)\n",
+                       dentry->d_inode->i_ino);
+                /* XXX: ignore because clear_fsetroot is broken  */
+#if 0
+                dput(dentry);
+                EXIT;
+                error = -EEXIST;
+                goto out;
+#endif
+        }
+
+        cache = presto_get_cache(dentry->d_inode);
+        if (!cache) { 
+                CERROR("No cache found for inode %ld\n",
+                       dentry->d_inode->i_ino);
+                EXIT;
+                error = -ENODEV;
+                goto out_free;
+        }
+
+        PRESTO_ALLOC(fset, sizeof(*fset));
+        if ( !fset ) {
+                CERROR("No memory allocating fset for %s\n", fsetname);
+                EXIT;
+                error = -ENOMEM;
+                goto out_free;
+        }
+        CDEBUG(D_INODE, "fset at %p\n", fset);
+
+        CDEBUG(D_INODE, "InterMezzo: fsetroot: inode %ld, fileset name %s\n",
+               dentry->d_inode->i_ino, fsetname);
+
+        fset->fset_mnt = mntget(current->fs->pwdmnt); 
+        fset->fset_cache = cache;
+        fset->fset_dentry = dentry; 
+        fset->fset_name = strdup(fsetname);
+        fset->fset_chunkbits = CHUNK_BITS;
+        fset->fset_flags = flags;
+        fset->fset_file_maxio = FSET_DEFAULT_MAX_FILEIO; 
+        fset->fset_permit_lock = SPIN_LOCK_UNLOCKED;
+        PRESTO_ALLOC(fset->fset_reint_buf, 64 * 1024);
+        if (fset->fset_reint_buf == NULL) {
+                EXIT;
+                error = -ENOMEM;
+                goto out_free;
+        }
+        init_waitqueue_head(&fset->fset_permit_queue);
+
+        if (presto_d2d(dentry) == NULL) { 
+                dentry->d_fsdata = izo_alloc_ddata();
+        }
+        if (presto_d2d(dentry) == NULL) {
+                CERROR("InterMezzo: %s: no memory\n", __FUNCTION__);
+                EXIT;
+                error = -ENOMEM;
+                goto out_free;
+        }
+		
+        presto_d2d(dentry)->dd_fset = fset;
+        list_add(&fset->fset_list, &cache->cache_fset_list);
+
+        error = izo_init_kml_file(fset, &fset->fset_kml);
+        if ( error ) {
+                EXIT;
+                CDEBUG(D_JOURNAL, "Error init_kml %d\n", error);
+                goto out_list_del;
+        }
+
+        error = izo_init_lml_file(fset, &fset->fset_lml);
+        if ( error ) {
+                int rc;
+                EXIT;
+                rc = izo_log_close(&fset->fset_kml);
+                CDEBUG(D_JOURNAL, "Error init_lml %d, cleanup %d\n", error, rc);
+                goto out_list_del;
+        }
+
+        /* init_last_rcvd_file could trigger a presto_file_write(), which
+         * requires that the lml structure be initialized. -phil */
+        error = izo_init_last_rcvd_file(fset, &fset->fset_rcvd);
+        if ( error ) {
+                int rc;
+                EXIT;
+                rc = izo_log_close(&fset->fset_kml);
+                rc = izo_log_close(&fset->fset_lml);
+                CDEBUG(D_JOURNAL, "Error init_lastrcvd %d, cleanup %d\n", error, rc);
+                goto out_list_del;
+        }
+
+        CDEBUG(D_PIOCTL, "-------> fset at %p, dentry at %p, mtpt %p,"
+               "fset %s, cache %p, presto_d2d(dentry)->dd_fset %p\n",
+               fset, dentry, fset->fset_dentry, fset->fset_name, cache,
+               presto_d2d(dentry)->dd_fset);
+
+        EXIT;
+        return 0;
+
+ out_list_del:
+        list_del(&fset->fset_list);
+        presto_d2d(dentry)->dd_fset = NULL;
+ out_free:
+        if (fset) {
+                mntput(fset->fset_mnt); 
+                if (fset->fset_reint_buf != NULL)
+                        PRESTO_FREE(fset->fset_reint_buf, 64 * 1024);
+                PRESTO_FREE(fset, sizeof(*fset));
+        }
+        dput(dentry); 
+ out:
+        return error;
+}
+
+static int izo_cleanup_fset(struct presto_file_set *fset)
+{
+        int error;
+        struct presto_cache *cache;
+
+        ENTRY;
+
+        CERROR("Cleaning up fset %s\n", fset->fset_name);
+
+        error = izo_log_close(&fset->fset_kml);
+        if (error)
+                CERROR("InterMezzo: Closing kml for fset %s: %d\n",
+                       fset->fset_name, error);
+        error = izo_log_close(&fset->fset_lml);
+        if (error)
+                CERROR("InterMezzo: Closing lml for fset %s: %d\n",
+                       fset->fset_name, error);
+        error = izo_log_close(&fset->fset_rcvd);
+        if (error)
+                CERROR("InterMezzo: Closing last_rcvd for fset %s: %d\n",
+                       fset->fset_name, error);
+
+        cache = fset->fset_cache;
+
+        list_del(&fset->fset_list);
+
+        presto_d2d(fset->fset_dentry)->dd_fset = NULL;
+        dput(fset->fset_dentry);
+        mntput(fset->fset_mnt);
+
+		izo_rep_cache_clean(fset);
+        PRESTO_FREE(fset->fset_name, strlen(fset->fset_name) + 1);
+        PRESTO_FREE(fset->fset_reint_buf, 64 * 1024);
+        PRESTO_FREE(fset, sizeof(*fset));
+        EXIT;
+        return error;
+}
+
+int izo_clear_fsetroot(struct dentry *dentry)
+{
+        struct presto_file_set *fset;
+
+        ENTRY;
+
+        fset = presto_dentry2fset(dentry);
+        if (!fset) {
+                EXIT;
+                return -EINVAL;
+        }
+
+        izo_cleanup_fset(fset);
+        EXIT;
+        return 0;
+}
+
+int izo_clear_all_fsetroots(struct presto_cache *cache)
+{
+        struct presto_file_set *fset;
+        struct list_head *tmp,*tmpnext;
+        int error;
+ 
+        error = 0;
+        tmp = &cache->cache_fset_list;
+        tmpnext = tmp->next;
+        while ( tmpnext != &cache->cache_fset_list) {
+                tmp = tmpnext;
+                tmpnext = tmp->next;
+                fset = list_entry(tmp, struct presto_file_set, fset_list);
+
+                error = izo_cleanup_fset(fset);
+                if (error)
+                        break;
+        }
+        return error;
+}
+
+static struct vfsmount *izo_alloc_vfsmnt(void)
+{
+        struct vfsmount *mnt;
+        PRESTO_ALLOC(mnt, sizeof(*mnt));
+        if (mnt) {
+                memset(mnt, 0, sizeof(struct vfsmount));
+                atomic_set(&mnt->mnt_count,1);
+                INIT_LIST_HEAD(&mnt->mnt_hash);
+                INIT_LIST_HEAD(&mnt->mnt_child);
+                INIT_LIST_HEAD(&mnt->mnt_mounts);
+                INIT_LIST_HEAD(&mnt->mnt_list);
+        }
+        return mnt;
+}
+
+
+static void izo_setup_ctxt(struct dentry *root, struct vfsmount *mnt,
+                           struct run_ctxt *save) 
+{
+        struct run_ctxt new;
+
+        mnt->mnt_root = root;
+        mnt->mnt_sb = root->d_inode->i_sb;
+        unlock_super(mnt->mnt_sb);
+
+        new.rootmnt = mnt;
+        new.root = root;
+        new.pwdmnt = mnt;
+        new.pwd = root;
+        new.fsuid = 0;
+        new.fsgid = 0;
+        new.fs = get_fs(); 
+        /* XXX where can we get the groups from? */
+        new.ngroups = 0;
+
+        push_ctxt(save, &new); 
+}
+
+static void izo_cleanup_ctxt(struct vfsmount *mnt, struct run_ctxt *save) 
+{
+        lock_super(mnt->mnt_sb);
+        pop_ctxt(save); 
+}
+
+static int izo_simple_mkdir(struct dentry *dir, char *name, int mode)
+{
+        struct dentry *dchild; 
+        int err;
+        ENTRY;
+        
+        dchild = lookup_one_len(name, dir, strlen(name));
+        if (IS_ERR(dchild)) { 
+                EXIT;
+                return PTR_ERR(dchild); 
+        }
+
+        if (dchild->d_inode) { 
+                dput(dchild);
+                EXIT;
+                return -EEXIST;
+        }
+
+        err = vfs_mkdir(dir->d_inode, dchild, mode);
+        dput(dchild);
+        
+        EXIT;
+        return err;
+}
+
+static int izo_simple_symlink(struct dentry *dir, char *name, char *tgt)
+{
+        struct dentry *dchild; 
+        int err;
+        ENTRY;
+        
+        dchild = lookup_one_len(name, dir, strlen(name));
+        if (IS_ERR(dchild)) { 
+                EXIT;
+                return PTR_ERR(dchild); 
+        }
+
+        if (dchild->d_inode) { 
+                dput(dchild);
+                EXIT;
+                return -EEXIST;
+        }
+
+        err = vfs_symlink(dir->d_inode, dchild, tgt);
+        dput(dchild);
+        
+        EXIT;
+        return err;
+}
+
+/*
+ * run set_fsetroot in chroot environment
+ */
+int presto_set_fsetroot_from_ioc(struct dentry *root, char *fsetname,
+                                 unsigned int flags)
+{
+        int rc;
+        struct presto_cache *cache;
+        struct vfsmount *mnt;
+        struct run_ctxt save;
+
+        if (root != root->d_inode->i_sb->s_root) {
+                CERROR ("IOC_SET_FSET must be called on mount point\n");
+                return -ENODEV;
+        }
+
+        cache = presto_get_cache(root->d_inode);
+        mnt = cache->cache_vfsmount;
+        if (!mnt) { 
+                EXIT;
+                return -ENOMEM;
+        }
+        
+        izo_setup_ctxt(root, mnt, &save); 
+        rc = presto_set_fsetroot(root, fsetname, flags);
+        izo_cleanup_ctxt(mnt, &save);
+        return rc;
+}
+
+/* XXX: this function should detect if fsetname is already in use for
+   the cache under root
+*/ 
+int izo_prepare_fileset(struct dentry *root, char *fsetname) 
+{
+        int err;
+        struct dentry *dotizo = NULL, *fsetdir = NULL, *dotiopen = NULL; 
+        struct presto_cache *cache;
+        struct vfsmount *mnt;
+        struct run_ctxt save;
+
+        cache = presto_get_cache(root->d_inode);
+        mnt = cache->cache_vfsmount = izo_alloc_vfsmnt();
+        if (!mnt) { 
+                EXIT;
+                return -ENOMEM;
+        }
+        
+        if (!fsetname) 
+                fsetname = "rootfset"; 
+
+        izo_setup_ctxt(root, mnt, &save); 
+
+        err = izo_simple_mkdir(root, ".intermezzo", 0755);
+        CDEBUG(D_CACHE, "mkdir on .intermezzo err %d\n", err); 
+
+        err = izo_simple_mkdir(root, "..iopen..", 0755);
+        CDEBUG(D_CACHE, "mkdir on ..iopen.. err %d\n", err); 
+
+        dotiopen = lookup_one_len("..iopen..", root, strlen("..iopen.."));
+        if (IS_ERR(dotiopen)) { 
+                EXIT;
+                goto out;
+        }
+        dotiopen->d_inode->i_op = &presto_dir_iops;
+        dput(dotiopen);
+
+
+        dotizo = lookup_one_len(".intermezzo", root, strlen(".intermezzo"));
+        if (IS_ERR(dotizo)) { 
+                EXIT;
+                goto out;
+        }
+
+
+        err = izo_simple_mkdir(dotizo, fsetname, 0755);
+        CDEBUG(D_CACHE, "mkdir err %d\n", err); 
+
+        /* XXX find the dentry of the root of the fileset (root for now) */ 
+        fsetdir = lookup_one_len(fsetname, dotizo, strlen(fsetname));
+        if (IS_ERR(fsetdir)) { 
+                EXIT;
+                goto out;
+        }
+
+        err = izo_simple_symlink(fsetdir, "ROOT", "../.."); 
+
+        /* XXX read flags from flags file */ 
+        err =  presto_set_fsetroot(root, fsetname, 0); 
+        CDEBUG(D_CACHE, "set_fsetroot err %d\n", err); 
+
+ out:
+        if (dotizo && !IS_ERR(dotizo)) 
+                dput(dotizo); 
+        if (fsetdir && !IS_ERR(fsetdir)) 
+                dput(fsetdir); 
+        izo_cleanup_ctxt(mnt, &save);
+        return err; 
+}
+
+int izo_set_fileid(struct file *dir, struct izo_ioctl_data *data)
+{
+        int rc = 0;
+        struct presto_cache *cache;
+        struct vfsmount *mnt;
+        struct run_ctxt save;
+        struct nameidata nd;
+        struct dentry *dentry;
+        struct presto_dentry_data *dd;
+        struct dentry *root;
+        char *buf = NULL; 
+
+        ENTRY;
+
+
+        root = dir->f_dentry;
+
+        /* actually, needs to be called on ROOT of fset, not mount point  
+        if (root != root->d_inode->i_sb->s_root) {
+                CERROR ("IOC_SET_FSET must be called on mount point\n");
+                return -ENODEV;
+        }
+        */
+
+        cache = presto_get_cache(root->d_inode);
+        mnt = cache->cache_vfsmount;
+        if (!mnt) { 
+                EXIT;
+                return -ENOMEM;
+        }
+        
+        izo_setup_ctxt(root, mnt, &save); 
+        
+        PRESTO_ALLOC(buf, data->ioc_plen1);
+        if (!buf) { 
+                rc = -ENOMEM;
+                EXIT;
+                goto out;
+        }
+        if (copy_from_user(buf, data->ioc_pbuf1, data->ioc_plen1)) { 
+                rc =  -EFAULT;
+                EXIT;
+                goto out;
+        }
+
+        rc = presto_walk(buf, &nd);
+        if (rc) {
+                CERROR("Unable to open: %s\n", buf);
+                EXIT;
+                goto out;
+        }
+        dentry = nd.dentry;
+        if (!dentry) {
+                CERROR("no dentry!\n");
+                rc =  -EINVAL;
+                EXIT;
+                goto out_close;
+        }
+        dd = presto_d2d(dentry);
+        if (!dd) {
+                CERROR("no dentry_data!\n");
+                rc = -EINVAL;
+                EXIT;
+                goto out_close;
+        }
+
+        CDEBUG(D_FILE,"de:%p dd:%p\n", dentry, dd);
+
+        if (dd->remote_ino != 0) {
+                CERROR("remote_ino already set? %Lx:%Lx\n", dd->remote_ino,
+                       dd->remote_generation);
+                rc = 0;
+                EXIT;
+                goto out_close;
+        }
+
+
+        CDEBUG(D_FILE,"setting %p %p, %s to %Lx:%Lx\n", dentry, dd, 
+               buf, data->ioc_ino,
+               data->ioc_generation);
+        dd->remote_ino = data->ioc_ino;
+        dd->remote_generation = data->ioc_generation;
+
+        EXIT;
+ out_close:
+        path_release(&nd);
+ out:
+        if (buf)
+                PRESTO_FREE(buf, data->ioc_plen1);
+        izo_cleanup_ctxt(mnt, &save);
+        return rc;
+}
diff --git a/fs/intermezzo/inode.c b/fs/intermezzo/inode.c
new file mode 100644
index 00000000000000..6e1d8154579d3d
--- /dev/null
+++ b/fs/intermezzo/inode.c
@@ -0,0 +1,187 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ *  Copyright (C) 1996 Peter J. Braam <braam@maths.ox.ac.uk> and
+ *    Michael Callahan <callahan@maths.ox.ac.uk>
+ *  Copyright (C) 1999 Carnegie Mellon University
+ *    Rewritten for Linux 2.1.  Peter Braam <braam@cs.cmu.edu>
+ *
+ *   This file is part of InterMezzo, http://www.inter-mezzo.org.
+ *
+ *   InterMezzo is free software; you can redistribute it and/or
+ *   modify it under the terms of version 2 of the GNU General Public
+ *   License as published by the Free Software Foundation.
+ *
+ *   InterMezzo is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with InterMezzo; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Super block/filesystem wide operations
+ */
+
+#define __NO_VERSION__
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/string.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <linux/unistd.h>
+
+#include <asm/system.h>
+#include <asm/uaccess.h>
+
+#include <linux/fs.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <linux/string.h>
+#include <asm/uaccess.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <asm/segment.h>
+
+#include <linux/intermezzo_fs.h>
+#include <linux/intermezzo_psdev.h>
+
+extern void presto_free_cache(struct presto_cache *);
+
+void presto_set_ops(struct inode *inode, struct  filter_fs *filter)
+{
+        ENTRY; 
+
+        if (!inode || is_bad_inode(inode))
+                return;
+
+        if (S_ISREG(inode->i_mode)) {
+                if ( !filter_c2cfiops(filter) ) {
+                       filter_setup_file_ops(filter, 
+                                             inode, &presto_file_iops,
+                                             &presto_file_fops);
+                }
+                inode->i_op = filter_c2ufiops(filter);
+                inode->i_fop = filter_c2uffops(filter);
+                CDEBUG(D_INODE, "set file methods for %ld to %p\n",
+                       inode->i_ino, inode->i_op);
+        } else if (S_ISDIR(inode->i_mode)) {
+                inode->i_op = filter_c2udiops(filter);
+                inode->i_fop = filter_c2udfops(filter);
+                CDEBUG(D_INODE, "set dir methods for %ld to %p ioctl %p\n",
+                       inode->i_ino, inode->i_op, inode->i_fop->ioctl);
+        } else if (S_ISLNK(inode->i_mode)) {
+                if ( !filter_c2csiops(filter)) {
+                        filter_setup_symlink_ops(filter, 
+                                                 inode,
+                                                 &presto_sym_iops, 
+                                                 &presto_sym_fops);
+                }
+                inode->i_op = filter_c2usiops(filter);
+                inode->i_fop = filter_c2usfops(filter);
+                CDEBUG(D_INODE, "set link methods for %ld to %p\n",
+                       inode->i_ino, inode->i_op);
+        }
+        EXIT;
+}
+
+void presto_read_inode(struct inode *inode)
+{
+        struct presto_cache *cache;
+
+        cache = presto_get_cache(inode);
+        if ( !cache ) {
+                CERROR("PRESTO: BAD, BAD: cannot find cache\n");
+                make_bad_inode(inode);
+                return ;
+        }
+
+        filter_c2csops(cache->cache_filter)->read_inode(inode);
+
+        CDEBUG(D_INODE, "presto_read_inode: ino %ld, gid %d\n", 
+               inode->i_ino, inode->i_gid);
+
+        presto_set_ops(inode, cache->cache_filter); 
+        /* XXX handle special inodes here or not - probably not? */
+}
+
+static void presto_put_super(struct super_block *sb)
+{
+        struct presto_cache *cache;
+        struct upc_channel *channel;
+        struct super_operations *sops;
+        struct list_head *lh;
+        int err;
+
+        ENTRY;
+        cache = presto_cache_find(sb->s_dev);
+        if (!cache) {
+                EXIT;
+                goto exit;
+        }
+        channel = &izo_channels[presto_c2m(cache)];
+        sops = filter_c2csops(cache->cache_filter);
+        err = izo_clear_all_fsetroots(cache); 
+        if (err) { 
+                CERROR("%s: err %d\n", __FUNCTION__, err);
+        }
+        PRESTO_FREE(cache->cache_vfsmount, sizeof(struct vfsmount));
+
+        /* look at kill_super - fsync_super is not exported GRRR but 
+           probably not needed */ 
+        unlock_super(sb);
+        shrink_dcache_parent(cache->cache_root); 
+        dput(cache->cache_root); 
+        //fsync_super(sb); 
+        lock_super(sb);
+
+        if (sops->write_super)
+                sops->write_super(sb); 
+
+        if (sops->put_super)
+                sops->put_super(sb);
+
+        /* free any remaining async upcalls when the filesystem is unmounted */
+        spin_lock(&channel->uc_lock);
+        lh = channel->uc_pending.next;
+        while ( lh != &channel->uc_pending) {
+                struct upc_req *req;
+                req = list_entry(lh, struct upc_req, rq_chain);
+
+                /* assignment must be here: we are about to free &lh */
+                lh = lh->next;
+                if ( ! (req->rq_flags & REQ_ASYNC) ) 
+                        continue;
+                list_del(&(req->rq_chain));
+                PRESTO_FREE(req->rq_data, req->rq_bufsize);
+                PRESTO_FREE(req, sizeof(struct upc_req));
+        }
+        list_del(&cache->cache_channel_list); 
+        spin_unlock(&channel->uc_lock);
+
+        presto_free_cache(cache);
+
+exit:
+        CDEBUG(D_MALLOC, "after umount: kmem %ld, vmem %ld\n",
+               presto_kmemory, presto_vmemory);
+        MOD_DEC_USE_COUNT;
+        return ;
+}
+
+struct super_operations presto_super_ops = {
+        .read_inode    = presto_read_inode,
+        .put_super     = presto_put_super,
+};
+
+
+/* symlinks can be chowned */
+struct inode_operations presto_sym_iops = {
+        .setattr       = presto_setattr
+};
+
+/* NULL for now */
+struct file_operations presto_sym_fops; 
diff --git a/fs/intermezzo/journal.c b/fs/intermezzo/journal.c
new file mode 100644
index 00000000000000..2f68e5acecf907
--- /dev/null
+++ b/fs/intermezzo/journal.c
@@ -0,0 +1,2453 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ *  Copyright (C) 1998 Peter J. Braam
+ *  Copyright (C) 2001 Cluster File Systems, Inc. 
+ *  Copyright (C) 2001 Tacit Networks, Inc. <phil@off.net>
+ *
+ *  Support for journalling extended attributes
+ *  Copyright (C) 2001 Shirish H. Phatak, Tacit Networks, Inc.
+ * 
+ *   This file is part of InterMezzo, http://www.inter-mezzo.org.
+ *
+ *   InterMezzo is free software; you can redistribute it and/or
+ *   modify it under the terms of version 2 of the GNU General Public
+ *   License as published by the Free Software Foundation.
+ *
+ *   InterMezzo is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with InterMezzo; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/time.h>
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <asm/segment.h>
+#include <asm/uaccess.h>
+#include <linux/string.h>
+#include <linux/smp_lock.h>
+#include <linux/intermezzo_fs.h>
+#include <linux/intermezzo_psdev.h>
+
+struct presto_reservation_data {
+        unsigned int ri_recno;
+        loff_t ri_offset;
+        loff_t ri_size;
+        struct list_head ri_list;
+};
+
+/* 
+ *  Locking Semantics
+ * 
+ * write lock in struct presto_log_fd: 
+ *  - name: fd_lock
+ *  - required for: accessing any field in a presto_log_fd 
+ *  - may not be held across I/O
+ *  - 
+ *  
+ */
+
+/*
+ *  reserve record space and/or atomically request state of the log
+ *  rec will hold the location reserved record upon return
+ *  this reservation will be placed in the queue
+ */ 
+static void presto_reserve_record(struct presto_file_set *fset, 
+                           struct presto_log_fd *fd, 
+                           struct rec_info *rec,
+                           struct presto_reservation_data *rd)
+{
+        int chunked_record = 0; 
+        ENTRY;
+        
+        write_lock(&fd->fd_lock);
+        if ( rec->is_kml ) { 
+                int chunk = 1 << fset->fset_chunkbits;
+                int chunk_mask = ~(chunk -1); 
+                loff_t boundary; 
+
+                boundary =  (fd->fd_offset + chunk - 1) & chunk_mask;
+                if ( fd->fd_offset + rec->size >= boundary ) {
+                        chunked_record = 1;
+                        fd->fd_offset = boundary; 
+                }
+        }
+
+        fd->fd_recno++;
+        
+        /* this moves the fd_offset back after truncation */ 
+        if ( list_empty(&fd->fd_reservations) && 
+             !chunked_record) { 
+                fd->fd_offset = fd->fd_file->f_dentry->d_inode->i_size;
+        }
+
+        rec->offset = fd->fd_offset;
+        if (rec->is_kml)
+                rec->offset += fset->fset_kml_logical_off;
+
+        rec->recno = fd->fd_recno;
+
+        /* add the reservation data to the end of the list */
+        rd->ri_offset = fd->fd_offset;
+        rd->ri_size = rec->size;
+        rd->ri_recno = rec->recno; 
+        list_add(&rd->ri_list, fd->fd_reservations.prev);
+
+        fd->fd_offset += rec->size;
+
+        write_unlock(&fd->fd_lock); 
+
+        EXIT;
+}
+
+static inline void presto_release_record(struct presto_log_fd *fd,
+                                         struct presto_reservation_data *rd)
+{
+        write_lock(&fd->fd_lock);
+        list_del(&rd->ri_list);
+        write_unlock(&fd->fd_lock);
+}
+
+/* XXX should we ask for do_truncate to be exported? */
+int izo_do_truncate(struct presto_file_set *fset, struct dentry *dentry,
+                    loff_t length,  loff_t size_check)
+{
+        struct inode *inode = dentry->d_inode;
+        int error;
+        struct iattr newattrs;
+
+        ENTRY;
+
+        if (length < 0) {
+                EXIT;
+                return -EINVAL;
+        }
+
+        down(&inode->i_sem);
+        lock_kernel();
+        
+        if (size_check != inode->i_size) { 
+                unlock_kernel();
+                up(&inode->i_sem);
+                EXIT;
+                return -EALREADY; 
+        }
+
+        newattrs.ia_size = length;
+        newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME;
+
+        if (inode->i_op && inode->i_op->setattr)
+                error = inode->i_op->setattr(dentry, &newattrs);
+        else {
+                inode_setattr(dentry->d_inode, &newattrs);
+                error = 0;
+        }
+
+        unlock_kernel();
+        up(&inode->i_sem);
+        EXIT;
+        return error;
+}
+
+static void presto_kml_truncate(struct presto_file_set *fset)
+{
+        int rc;
+        ENTRY;
+
+        write_lock(&fset->fset_kml.fd_lock);
+        if (fset->fset_kml.fd_truncating == 1 ) {
+                write_unlock(&fset->fset_kml.fd_lock);
+                EXIT;
+                return;
+        }
+
+        fset->fset_kml.fd_truncating = 1;
+        write_unlock(&fset->fset_kml.fd_lock);
+
+        CERROR("islento: %d, count: %d\n",
+               ISLENTO(presto_i2m(fset->fset_dentry->d_inode)),
+               fset->fset_permit_count);
+
+        rc = izo_upc_kml_truncate(fset->fset_cache->cache_psdev->uc_minor,
+                                fset->fset_lento_off, fset->fset_lento_recno,
+                                fset->fset_name);
+
+        /* Userspace is the only permitholder now, and will retain an exclusive
+         * hold on the permit until KML truncation completes. */
+        /* FIXME: double check this code path now that the precise semantics of
+         * fset->fset_permit_count have changed. */
+
+        if (rc != 0) {
+                write_lock(&fset->fset_kml.fd_lock);
+                fset->fset_kml.fd_truncating = 0;
+                write_unlock(&fset->fset_kml.fd_lock);
+        }
+
+        EXIT;
+}
+
+void *presto_trans_start(struct presto_file_set *fset, struct inode *inode,
+                         int op)
+{
+        ENTRY;
+        if ( !fset->fset_cache->cache_filter->o_trops ) {
+                EXIT;
+                return NULL;
+        }
+        EXIT;
+        return fset->fset_cache->cache_filter->o_trops->tr_start
+                (fset, inode, op);
+}
+
+void presto_trans_commit(struct presto_file_set *fset, void *handle)
+{
+        ENTRY;
+        if (!fset->fset_cache->cache_filter->o_trops ) {
+                EXIT;
+                return;
+        }
+
+        fset->fset_cache->cache_filter->o_trops->tr_commit(fset, handle);
+
+        /* Check to see if the KML needs truncated. */
+        if (fset->kml_truncate_size > 0 &&
+            !fset->fset_kml.fd_truncating &&
+            fset->fset_kml.fd_offset > fset->kml_truncate_size) {
+                CDEBUG(D_JOURNAL, "kml size: %lu; truncating\n",
+                       (unsigned long)fset->fset_kml.fd_offset);
+                presto_kml_truncate(fset);
+        }
+        EXIT;
+}
+
+inline int presto_no_journal(struct presto_file_set *fset)
+{
+        int minor = fset->fset_cache->cache_psdev->uc_minor;
+        return izo_channels[minor].uc_no_journal;
+}
+
+#define size_round(x)  (((x)+3) & ~0x3)
+
+#define BUFF_FREE(buf) PRESTO_FREE(buf, PAGE_SIZE)
+#define BUFF_ALLOC(newbuf, oldbuf)              \
+        PRESTO_ALLOC(newbuf, PAGE_SIZE);        \
+        if ( !newbuf ) {                        \
+                if (oldbuf)                     \
+                        BUFF_FREE(oldbuf);      \
+                return -ENOMEM;                 \
+        }
+
+/*
+ * "buflen" should be PAGE_SIZE or more.
+ * Give relative path wrt to a fsetroot
+ */
+char * presto_path(struct dentry *dentry, struct dentry *root,
+                   char *buffer, int buflen)
+{
+        char * end = buffer+buflen;
+        char * retval;
+
+        *--end = '\0';
+        buflen--;
+        if (dentry->d_parent != dentry && list_empty(&dentry->d_hash)) {
+                buflen -= 10;
+                end -= 10;
+                memcpy(end, " (deleted)", 10);
+        }
+
+        /* Get '/' right */
+        retval = end-1;
+        *retval = '/';
+
+        for (;;) {
+                struct dentry * parent;
+                int namelen;
+
+                if (dentry == root)
+                        break;
+                parent = dentry->d_parent;
+                if (dentry == parent)
+                        break;
+                namelen = dentry->d_name.len;
+                buflen -= namelen + 1;
+                if (buflen < 0)
+                        break;
+                end -= namelen;
+                memcpy(end, dentry->d_name.name, namelen);
+                *--end = '/';
+                retval = end;
+                dentry = parent;
+        }
+        return retval;
+}
+
+static inline char *logit(char *buf, const void *value, int size)
+{
+        char *ptr = (char *)value;
+
+        memcpy(buf, ptr, size);
+        buf += size;
+        return buf;
+}
+
+
+static inline char *
+journal_log_prefix_with_groups_and_ids(char *buf, int opcode, 
+                                       struct rec_info *rec,
+                                       __u32 ngroups, gid_t *groups,
+                                       __u32 fsuid, __u32 fsgid)
+{
+        struct kml_prefix_hdr p;
+        u32 loggroups[NGROUPS_MAX];
+
+        int i; 
+
+        p.len = cpu_to_le32(rec->size);
+        p.version = KML_MAJOR_VERSION | KML_MINOR_VERSION;
+        p.pid = cpu_to_le32(current->pid);
+        p.auid = cpu_to_le32(current->uid);
+        p.fsuid = cpu_to_le32(fsuid);
+        p.fsgid = cpu_to_le32(fsgid);
+        p.ngroups = cpu_to_le32(ngroups);
+        p.opcode = cpu_to_le32(opcode);
+        for (i=0 ; i < ngroups ; i++)
+                loggroups[i] = cpu_to_le32((__u32) groups[i]);
+
+        buf = logit(buf, &p, sizeof(struct kml_prefix_hdr));
+        buf = logit(buf, &loggroups, sizeof(__u32) * ngroups);
+        return buf;
+}
+
+static inline char *
+journal_log_prefix(char *buf, int opcode, struct rec_info *rec)
+{
+        __u32 groups[NGROUPS_MAX]; 
+        int i; 
+
+        /* convert 16 bit gid's to 32 bit gid's */
+        for (i=0; i<current->ngroups; i++) 
+                groups[i] = (__u32) current->groups[i];
+        
+        return journal_log_prefix_with_groups_and_ids(buf, opcode, rec,
+                                                      (__u32)current->ngroups,
+                                                      groups,
+                                                      (__u32)current->fsuid,
+                                                      (__u32)current->fsgid);
+}
+
+static inline char *
+journal_log_prefix_with_groups(char *buf, int opcode, struct rec_info *rec, 
+                               __u32 ngroups, gid_t *groups)
+{
+        return journal_log_prefix_with_groups_and_ids(buf, opcode, rec,
+                                                      ngroups, groups,
+                                                      (__u32)current->fsuid,
+                                                      (__u32)current->fsgid);
+}
+
+static inline char *log_dentry_version(char *buf, struct dentry *dentry)
+{
+        struct presto_version version;
+
+        presto_getversion(&version, dentry->d_inode);
+        
+        version.pv_mtime = HTON__u64(version.pv_mtime);
+        version.pv_ctime = HTON__u64(version.pv_ctime);
+        version.pv_size = HTON__u64(version.pv_size);
+
+        return logit(buf, &version, sizeof(version));
+}
+
+static inline char *log_version(char *buf, struct presto_version *pv)
+{
+        struct presto_version version;
+
+        memcpy(&version, pv, sizeof(version));
+        
+        version.pv_mtime = HTON__u64(version.pv_mtime);
+        version.pv_ctime = HTON__u64(version.pv_ctime);
+        version.pv_size = HTON__u64(version.pv_size);
+
+        return logit(buf, &version, sizeof(version));
+}
+
+static inline char *log_rollback(char *buf, struct izo_rollback_data *rb)
+{
+        struct izo_rollback_data rollback;
+
+        memcpy(&rollback, rb, sizeof(rollback));
+        
+        rollback.rb_mode = HTON__u32(rollback.rb_mode);
+        rollback.rb_rdev = HTON__u32(rollback.rb_rdev);
+        rollback.rb_uid = HTON__u64(rollback.rb_uid);
+        rollback.rb_gid = HTON__u64(rollback.rb_gid);
+
+        return logit(buf, &rollback, sizeof(rollback));
+}
+
+static inline char *journal_log_suffix(char *buf, char *log,
+                                       struct presto_file_set *fset,
+                                       struct dentry *dentry,
+                                       struct rec_info *rec)
+{
+        struct kml_suffix s;
+        struct kml_prefix_hdr *p = (struct kml_prefix_hdr *)log;
+
+#if 0
+        /* XXX needs to be done after reservation, 
+           disable ths until version 1.2 */
+        if ( dentry ) { 
+                s.prevrec = cpu_to_le32(rec->offset - 
+                                        presto_d2d(dentry)->dd_kml_offset);
+                presto_d2d(dentry)->dd_kml_offset = rec->offset;
+        } else { 
+                s.prevrec = -1;
+        }
+#endif
+        s.prevrec = 0; 
+
+        /* record number needs to be filled in after reservation 
+           s.recno = cpu_to_le32(rec->recno); */ 
+        s.time = cpu_to_le32(CURRENT_TIME);
+        s.len = p->len;
+        return logit(buf, &s, sizeof(s));
+}
+
+int izo_log_close(struct presto_log_fd *logfd)
+{
+        int rc = 0;
+
+        if (logfd->fd_file) {
+                rc = filp_close(logfd->fd_file, 0);
+                logfd->fd_file = NULL;
+        } else
+                CERROR("InterMezzo: %s: no filp\n", __FUNCTION__);
+        if (rc != 0)
+                CERROR("InterMezzo: close files: filp won't close: %d\n", rc);
+
+        return rc;
+}
+
+int presto_fwrite(struct file *file, const char *str, int len, loff_t *off)
+{
+        int rc;
+        mm_segment_t old_fs;
+        ENTRY;
+
+        rc = -EINVAL;
+        if ( !off ) {
+                EXIT;
+                return rc;
+        }
+
+        if ( ! file ) {
+                EXIT;
+                return rc;
+        }
+
+        if ( ! file->f_op ) {
+                EXIT;
+                return rc;
+        }
+
+        if ( ! file->f_op->write ) {
+                EXIT;
+                return rc;
+        }
+
+        old_fs = get_fs();
+        set_fs(get_ds());
+        rc = file->f_op->write(file, str, len, off);
+        if (rc != len) {
+                CERROR("presto_fwrite: wrote %d bytes instead of "
+                       "%d at %ld\n", rc, len, (long)*off);
+                rc = -EIO; 
+        }
+        set_fs(old_fs);
+        EXIT;
+        return rc;
+}
+
+int presto_fread(struct file *file, char *str, int len, loff_t *off)
+{
+        int rc;
+        mm_segment_t old_fs;
+        ENTRY;
+
+        if (len > 512)
+                CERROR("presto_fread: read at %Ld for %d bytes, ino %ld\n",
+                       *off, len, file->f_dentry->d_inode->i_ino); 
+
+        rc = -EINVAL;
+        if ( !off ) {
+                EXIT;
+                return rc;
+        }
+
+        if ( ! file ) {
+                EXIT;
+                return rc;
+        }
+
+        if ( ! file->f_op ) {
+                EXIT;
+                return rc;
+        }
+
+        if ( ! file->f_op->read ) {
+                EXIT;
+                return rc;
+        }
+
+        old_fs = get_fs();
+        set_fs(get_ds());
+        rc = file->f_op->read(file, str, len, off);
+        if (rc != len) {
+                CDEBUG(D_FILE, "presto_fread: read %d bytes instead of "
+                       "%d at %Ld\n", rc, len, *off);
+                rc = -EIO; 
+        }
+        set_fs(old_fs);
+        EXIT;
+        return rc;
+}
+
+loff_t presto_kml_offset(struct presto_file_set *fset)
+{
+        unsigned int kml_recno;
+        struct presto_log_fd *fd = &fset->fset_kml;
+        loff_t  offset;
+        ENTRY;
+
+        write_lock(&fd->fd_lock); 
+
+        /* Determine the largest valid offset, i.e. up until the first
+         * reservation held on the file. */
+        if ( !list_empty(&fd->fd_reservations) ) {
+                struct presto_reservation_data *rd;
+                rd = list_entry(fd->fd_reservations.next, 
+                                struct presto_reservation_data, 
+                                ri_list);
+                offset = rd->ri_offset;
+                kml_recno = rd->ri_recno;
+        } else {
+                offset = fd->fd_file->f_dentry->d_inode->i_size;
+                kml_recno = fset->fset_kml.fd_recno; 
+        }
+        write_unlock(&fd->fd_lock); 
+        return offset; 
+}
+
+static int presto_kml_dispatch(struct presto_file_set *fset)
+{
+        int rc = 0;
+        unsigned int kml_recno;
+        struct presto_log_fd *fd = &fset->fset_kml;
+        loff_t offset;
+        ENTRY;
+
+        write_lock(&fd->fd_lock); 
+
+        /* Determine the largest valid offset, i.e. up until the first
+         * reservation held on the file. */
+        if ( !list_empty(&fd->fd_reservations) ) {
+                struct presto_reservation_data *rd;
+                rd = list_entry(fd->fd_reservations.next, 
+                                struct presto_reservation_data, 
+                                ri_list);
+                offset = rd->ri_offset;
+                kml_recno = rd->ri_recno;
+        } else {
+                offset = fd->fd_file->f_dentry->d_inode->i_size;
+                kml_recno = fset->fset_kml.fd_recno; 
+        }
+
+        if ( kml_recno < fset->fset_lento_recno ) {
+                CERROR("presto_kml_dispatch: smoke is coming\n"); 
+                write_unlock(&fd->fd_lock);
+                EXIT;
+                return 0; 
+        } else if ( kml_recno == fset->fset_lento_recno ) {
+                write_unlock(&fd->fd_lock);
+                EXIT;
+                return 0; 
+                /* XXX add a further "if" here to delay the KML upcall */ 
+#if 0
+        } else if ( kml_recno < fset->fset_lento_recno + 100) {
+                write_unlock(&fd->fd_lock);
+                EXIT;
+                return 0;
+#endif
+        }
+        CDEBUG(D_PIOCTL, "fset: %s\n", fset->fset_name);
+
+        rc = izo_upc_kml(fset->fset_cache->cache_psdev->uc_minor,
+                       fset->fset_lento_off, fset->fset_lento_recno,
+                       offset + fset->fset_kml_logical_off, kml_recno,
+                       fset->fset_name);
+
+        if ( rc ) {
+                write_unlock(&fd->fd_lock);
+                EXIT;
+                return rc;
+        }
+
+        fset->fset_lento_off = offset;
+        fset->fset_lento_recno = kml_recno; 
+        write_unlock(&fd->fd_lock);
+        EXIT;
+        return 0;
+}
+
+int izo_lookup_file(struct presto_file_set *fset, char *path,
+                    struct nameidata *nd)
+{
+        int error = 0;
+
+        CDEBUG(D_CACHE, "looking up: %s\n", path);
+
+        if (path_init(path, LOOKUP_PARENT, nd))
+                error = path_walk(path, nd);
+        if (error) {
+                EXIT;
+                return error;
+        }
+
+        return 0;
+}
+
+/* FIXME: this function is a mess of locking and error handling.  There's got to
+ * be a better way. */
+static int do_truncate_rename(struct presto_file_set *fset, char *oldname,
+                              char *newname)
+{
+        struct dentry *old_dentry, *new_dentry;
+        struct nameidata oldnd, newnd;
+        char *oldpath, *newpath;
+        int error;
+
+        ENTRY;
+
+        oldpath = izo_make_path(fset, oldname);
+        if (oldpath == NULL) {
+                EXIT;
+                return -ENOENT;
+        }
+
+        newpath = izo_make_path(fset, newname);
+        if (newpath == NULL) {
+                error = -ENOENT;
+                EXIT;
+                goto exit;
+        }
+
+        if ((error = izo_lookup_file(fset, oldpath, &oldnd)) != 0) {
+                EXIT;
+                goto exit1;
+        }
+
+        if ((error = izo_lookup_file(fset, newpath, &newnd)) != 0) {
+                EXIT;
+                goto exit2;
+        }
+
+        double_lock(newnd.dentry, oldnd.dentry);
+        old_dentry = lookup_hash(&oldnd.last, oldnd.dentry);
+        error = PTR_ERR(old_dentry);
+        if (IS_ERR(old_dentry)) {
+                EXIT;
+                goto exit3;
+        }
+        error = -ENOENT;
+        if (!old_dentry->d_inode) {
+                EXIT;
+                goto exit4;
+        }
+        new_dentry = lookup_hash(&newnd.last, newnd.dentry);
+        error = PTR_ERR(new_dentry);
+        if (IS_ERR(new_dentry)) {
+                EXIT;
+                goto exit4;
+        }
+
+        {
+        extern int presto_rename(struct inode *old_dir,struct dentry *old_dentry,
+                                struct inode *new_dir,struct dentry *new_dentry);
+        error = presto_rename(old_dentry->d_parent->d_inode, old_dentry,
+                              new_dentry->d_parent->d_inode, new_dentry);
+        }
+
+        dput(new_dentry);
+        EXIT;
+ exit4:
+        dput(old_dentry);
+ exit3:
+        double_up(&newnd.dentry->d_inode->i_sem, &oldnd.dentry->d_inode->i_sem);
+        path_release(&newnd);
+ exit2:
+        path_release(&oldnd);
+ exit1:
+        PRESTO_FREE(newpath, strlen(newpath) + 1);
+ exit:
+        PRESTO_FREE(oldpath, strlen(oldpath) + 1);
+        return error;
+}
+
+/* This function is called with the fset->fset_kml.fd_lock held */
+int presto_finish_kml_truncate(struct presto_file_set *fset,
+                               unsigned long int offset)
+{
+        struct lento_vfs_context info;
+        void *handle;
+        struct file *f;
+        struct dentry *dentry;
+        int error = 0, len;
+        struct nameidata nd;
+        char *kmlpath = NULL, *smlpath = NULL;
+        ENTRY;
+
+        if (offset == 0) {
+                /* Lento couldn't do what it needed to; abort the truncation. */
+                fset->fset_kml.fd_truncating = 0;
+                EXIT;
+                return 0;
+        }
+
+        /* someone is about to write to the end of the KML; try again later. */
+        if ( !list_empty(&fset->fset_kml.fd_reservations) ) {
+                EXIT;
+                return -EAGAIN;
+        }
+
+        f = presto_copy_kml_tail(fset, offset);
+        if (IS_ERR(f)) {
+                EXIT;
+                return PTR_ERR(f);
+        }                        
+
+        /* In a single transaction:
+         *
+         *   - unlink 'kml'
+         *   - rename 'kml_tmp' to 'kml'
+         *   - unlink 'sml'
+         *   - rename 'sml_tmp' to 'sml'
+         *   - rewrite the first record of last_rcvd with the new kml
+         *     offset.
+         */
+        handle = presto_trans_start(fset, fset->fset_dentry->d_inode,
+                                    KML_OPCODE_KML_TRUNC);
+        if (IS_ERR(handle)) {
+                presto_release_space(fset->fset_cache, PRESTO_REQLOW);
+                CERROR("ERROR: presto_finish_kml_truncate: no space for transaction\n");
+                EXIT;
+                return -ENOMEM;
+        }
+
+        memset(&info, 0, sizeof(info));
+        info.flags = LENTO_FL_IGNORE_TIME;
+
+        kmlpath = izo_make_path(fset, "kml");
+        if (kmlpath == NULL) {
+                error = -ENOMEM;
+                CERROR("make_path failed: ENOMEM\n");
+                EXIT;
+                goto exit_commit;
+        }
+
+        if ((error = izo_lookup_file(fset, kmlpath, &nd)) != 0) {
+                CERROR("izo_lookup_file(kml) failed: %d.\n", error);
+                EXIT;
+                goto exit_commit;
+        }
+        down(&nd.dentry->d_inode->i_sem);
+        dentry = lookup_hash(&nd.last, nd.dentry);
+        error = PTR_ERR(dentry);
+        if (IS_ERR(dentry)) {
+                up(&nd.dentry->d_inode->i_sem);
+                path_release(&nd);
+                CERROR("lookup_hash failed\n");
+                EXIT;
+                goto exit_commit;
+        }
+        error = presto_do_unlink(fset, dentry->d_parent, dentry, &info);
+        dput(dentry);
+        up(&nd.dentry->d_inode->i_sem);
+        path_release(&nd);
+
+        if (error != 0) {
+                CERROR("presto_do_unlink(kml) failed: %d.\n", error);
+                EXIT;
+                goto exit_commit;
+        }
+
+        smlpath = izo_make_path(fset, "sml");
+        if (smlpath == NULL) {
+                error = -ENOMEM;
+                CERROR("make_path() failed: ENOMEM\n");
+                EXIT;
+                goto exit_commit;
+        }
+
+        if ((error = izo_lookup_file(fset, smlpath, &nd)) != 0) {
+                CERROR("izo_lookup_file(sml) failed: %d.\n", error);
+                EXIT;
+                goto exit_commit;
+        }
+        down(&nd.dentry->d_inode->i_sem);
+        dentry = lookup_hash(&nd.last, nd.dentry);
+        error = PTR_ERR(dentry);
+        if (IS_ERR(dentry)) {
+                up(&nd.dentry->d_inode->i_sem);
+                path_release(&nd);
+                CERROR("lookup_hash failed\n");
+                EXIT;
+                goto exit_commit;
+        }
+        error = presto_do_unlink(fset, dentry->d_parent, dentry, &info);
+        dput(dentry);
+        up(&nd.dentry->d_inode->i_sem);
+        path_release(&nd);
+
+        if (error != 0) {
+                CERROR("presto_do_unlink(sml) failed: %d.\n", error);
+                EXIT;
+                goto exit_commit;
+        }
+
+        error = do_truncate_rename(fset, "kml_tmp", "kml");
+        if (error != 0)
+                CERROR("do_truncate_rename(kml_tmp, kml) failed: %d\n", error);
+        error = do_truncate_rename(fset, "sml_tmp", "sml");
+        if (error != 0)
+                CERROR("do_truncate_rename(sml_tmp, sml) failed: %d\n", error);
+
+        /* Write a new 'last_rcvd' record with the new KML offset */
+        fset->fset_kml_logical_off += offset;
+        CDEBUG(D_CACHE, "new kml_logical_offset: %Lu\n",
+               fset->fset_kml_logical_off);
+        if (presto_write_kml_logical_offset(fset) != 0) {
+                CERROR("presto_write_kml_logical_offset failed\n");
+        }
+
+        presto_trans_commit(fset, handle);
+
+        /* Everything was successful, so swap the KML file descriptors */
+        filp_close(fset->fset_kml.fd_file, NULL);
+        fset->fset_kml.fd_file = f;
+        fset->fset_kml.fd_offset -= offset;
+        fset->fset_kml.fd_truncating = 0;
+
+        EXIT;
+        return 0;
+
+ exit_commit:
+        presto_trans_commit(fset, handle);
+        len = strlen("/.intermezzo/") + strlen(fset->fset_name) +strlen("sml");
+        if (kmlpath != NULL)
+                PRESTO_FREE(kmlpath, len);
+        if (smlpath != NULL)
+                PRESTO_FREE(smlpath, len);
+        return error;
+}
+
+/* structure of an extended log record:
+
+   buf-prefix  buf-body [string1 [string2 [string3]]] buf-suffix
+
+   note: moves offset forward
+*/
+static inline int presto_write_record(struct file *f, loff_t *off,
+                        const char *buf, size_t size,
+                        const char *string1, int len1, 
+                        const char *string2, int len2,
+                        const char *string3, int len3)
+{
+        size_t prefix_size; 
+        int rc;
+
+        prefix_size = size - sizeof(struct kml_suffix);
+        rc = presto_fwrite(f, buf, prefix_size, off);
+        if ( rc != prefix_size ) {
+                CERROR("Write error!\n");
+                EXIT;
+                return -EIO;
+        }
+
+        if  ( string1  && len1 ) {
+                rc = presto_fwrite(f, string1, len1, off);
+                if ( rc != len1 ) {
+                        CERROR("Write error!\n");
+                        EXIT;
+                        return -EIO;
+                }
+        }
+
+        if  ( string2 && len2 ) {
+                rc = presto_fwrite(f, string2, len2, off);
+                if ( rc != len2 ) {
+                        CERROR("Write error!\n");
+                        EXIT;
+                        return -EIO;
+                }
+        }
+
+        if  ( string3 && len3 ) {
+                rc = presto_fwrite(f, string3, len3, off);
+                if ( rc != len3 ) {
+                        CERROR("Write error!\n");
+                        EXIT;
+                        return -EIO;
+                }
+        }
+
+        rc = presto_fwrite(f, buf + prefix_size,
+                           sizeof(struct kml_suffix), off);
+        if ( rc != sizeof(struct kml_suffix) ) {
+                CERROR("Write error!\n");
+                EXIT;
+                return -EIO;
+        }
+        return 0;
+}
+
+
+/*
+ * rec->size must be valid prior to calling this function.
+ *
+ * had to export this for branch_reinter in kml_reint.c 
+ */
+int presto_log(struct presto_file_set *fset, struct rec_info *rec,
+               const char *buf, size_t size,
+               const char *string1, int len1, 
+               const char *string2, int len2,
+               const char *string3, int len3)
+{
+        int rc;
+        struct presto_reservation_data rd;
+        loff_t offset;
+        struct presto_log_fd *fd;
+        struct kml_suffix *s;
+        int prefix_size; 
+
+        ENTRY;
+
+        /* buf is NULL when no_journal is in effect */
+        if (!buf) {
+                EXIT;
+                return -EINVAL;
+        }
+
+        if (rec->is_kml) {
+                fd = &fset->fset_kml;
+        } else {
+                fd = &fset->fset_lml;
+        }
+
+        presto_reserve_record(fset, fd, rec, &rd);
+
+        if (rec->is_kml) {
+                if (rec->offset < fset->fset_kml_logical_off) {
+                        CERROR("record with pre-trunc offset.  tell phil.\n");
+                        BUG();
+                }
+                offset = rec->offset - fset->fset_kml_logical_off;
+        } else {
+                offset = rec->offset;
+        }
+
+        /* now we know the record number */ 
+        prefix_size = size - sizeof(struct kml_suffix);
+        s = (struct kml_suffix *) (buf + prefix_size); 
+        s->recno = cpu_to_le32(rec->recno); 
+
+        rc = presto_write_record(fd->fd_file, &offset, buf, size, 
+                                 string1, len1, string2, len2, string3, len3); 
+        if (rc) {
+                CERROR("presto: error writing record to %s\n",
+                        rec->is_kml ? "KML" : "LML"); 
+                return rc;
+        }
+        presto_release_record(fd, &rd);
+
+        rc = presto_kml_dispatch(fset);
+
+        EXIT;
+        return rc;
+}
+
+/* read from the record at tail */
+static int presto_last_record(struct presto_log_fd *fd, loff_t *size, 
+                             loff_t *tail_offset, __u32 *recno, loff_t tail)
+{
+        struct kml_suffix suffix;
+        int rc;
+        loff_t zeroes;
+
+        *recno = 0;
+        *tail_offset = 0;
+        *size = 0;
+        
+        if (tail < sizeof(struct kml_prefix_hdr) + sizeof(suffix)) {
+                EXIT;
+                return 0;
+        }
+
+        zeroes = tail - sizeof(int);
+        while ( zeroes >= 0 ) {
+                int data;
+                rc = presto_fread(fd->fd_file, (char *)&data, sizeof(data), 
+                                  &zeroes);
+                if ( rc != sizeof(data) ) { 
+                        rc = -EIO;
+                        return rc;
+                }
+                if (data)
+                        break;
+                zeroes -= 2 * sizeof(data);
+        }
+
+        /* zeroes at the begining of file. this is needed to prevent
+           presto_fread errors  -SHP
+        */
+        if (zeroes <= 0) return 0;
+                       
+        zeroes -= sizeof(suffix) + sizeof(int);
+        rc = presto_fread(fd->fd_file, (char *)&suffix, sizeof(suffix), &zeroes);
+        if ( rc != sizeof(suffix) ) {
+                EXIT;
+                return rc;
+        }
+        if ( suffix.len > 500 ) {
+                CERROR("InterMezzo: Warning long record tail at %ld, rec tail_offset at %ld (size %d)\n", 
+                        (long) zeroes, (long)*tail_offset, suffix.len); 
+        }
+
+        *recno = suffix.recno;
+        *size = suffix.len;
+        *tail_offset = zeroes;
+        return 0;
+}
+
+static int izo_kml_last_recno(struct presto_log_fd *logfd)
+{
+        int rc; 
+        loff_t size;
+        loff_t tail_offset;
+        int recno;
+        loff_t tail = logfd->fd_file->f_dentry->d_inode->i_size;
+
+        rc = presto_last_record(logfd, &size, &tail_offset, &recno, tail);
+        if (rc != 0) {
+                EXIT;
+                return rc;
+        }
+
+        logfd->fd_offset = tail_offset;
+        logfd->fd_recno = recno;
+        CDEBUG(D_JOURNAL, "setting fset_kml->fd_recno to %d, offset  %Ld\n",
+               recno, tail_offset); 
+        EXIT;
+        return 0;
+}
+
+struct file *izo_log_open(struct presto_file_set *fset, char *name, int flags)
+{
+        struct presto_cache *cache = fset->fset_cache;
+        struct file *f;
+        int error;
+        ENTRY;
+
+        f = izo_fset_open(fset, name, flags, 0644);
+        error = PTR_ERR(f);
+        if (IS_ERR(f)) {
+                EXIT;
+                return f;
+        }
+
+        error = -EINVAL;
+        if ( cache != presto_get_cache(f->f_dentry->d_inode) ) {
+                CERROR("InterMezzo: %s cache does not match fset cache!\n",name);
+                fset->fset_kml.fd_file = NULL;
+                filp_close(f, NULL);
+                f = NULL;
+                EXIT;
+                return f;
+        }
+
+        if (cache->cache_filter &&  cache->cache_filter->o_trops &&
+            cache->cache_filter->o_trops->tr_journal_data) {
+                cache->cache_filter->o_trops->tr_journal_data
+                        (f->f_dentry->d_inode);
+        } else {
+                CERROR("InterMezzo WARNING: no file data logging!\n"); 
+        }
+
+        EXIT;
+
+        return f;
+}
+
+int izo_init_kml_file(struct presto_file_set *fset, struct presto_log_fd *logfd)
+{
+        int error = 0;
+        struct file *f;
+
+        ENTRY;
+        if (logfd->fd_file) {
+                CDEBUG(D_INODE, "fset already has KML open\n");
+                EXIT;
+                return 0;
+        }
+
+        logfd->fd_lock = RW_LOCK_UNLOCKED;
+        INIT_LIST_HEAD(&logfd->fd_reservations); 
+        f = izo_log_open(fset, "kml",  O_RDWR | O_CREAT);
+        if (IS_ERR(f)) {
+                error = PTR_ERR(f);
+                return error;
+        }
+
+        logfd->fd_file = f;
+        error = izo_kml_last_recno(logfd);
+
+        if (error) {
+                logfd->fd_file = NULL;
+                filp_close(f, NULL);
+                CERROR("InterMezzo: IO error in KML of fset %s\n",
+                       fset->fset_name);
+                EXIT;
+                return error;
+        }
+        fset->fset_lento_off = logfd->fd_offset;
+        fset->fset_lento_recno = logfd->fd_recno;
+
+        EXIT;
+        return error;
+}
+
+int izo_init_last_rcvd_file(struct presto_file_set *fset, struct presto_log_fd *logfd)
+{
+        int error = 0;
+        struct file *f;
+        struct rec_info recinfo;
+
+        ENTRY;
+        if (logfd->fd_file != NULL) {
+                CDEBUG(D_INODE, "fset already has last_rcvd open\n");
+                EXIT;
+                return 0;
+        }
+
+        logfd->fd_lock = RW_LOCK_UNLOCKED;
+        INIT_LIST_HEAD(&logfd->fd_reservations); 
+        f = izo_log_open(fset, "last_rcvd", O_RDWR | O_CREAT);
+        if (IS_ERR(f)) {
+                error = PTR_ERR(f);
+                return error;
+        }
+
+        logfd->fd_file = f;
+        logfd->fd_offset = f->f_dentry->d_inode->i_size;
+
+        error = izo_rep_cache_init(fset);
+
+        if (presto_read_kml_logical_offset(&recinfo, fset) == 0) {
+                fset->fset_kml_logical_off = recinfo.offset;
+        } else {
+                /* The 'last_rcvd' file doesn't contain a kml offset record,
+                 * probably because we just created 'last_rcvd'.  Write one. */
+                fset->fset_kml_logical_off = 0;
+                presto_write_kml_logical_offset(fset);
+        }
+
+        EXIT;
+        return error;
+}
+
+int izo_init_lml_file(struct presto_file_set *fset, struct presto_log_fd *logfd)
+{
+        int error = 0;
+        struct file *f;
+
+        ENTRY;
+        if (logfd->fd_file) {
+                CDEBUG(D_INODE, "fset already has lml open\n");
+                EXIT;
+                return 0;
+        }
+
+        logfd->fd_lock = RW_LOCK_UNLOCKED;
+        INIT_LIST_HEAD(&logfd->fd_reservations); 
+        f = izo_log_open(fset, "lml", O_RDWR | O_CREAT);
+        if (IS_ERR(f)) {
+                error = PTR_ERR(f);
+                return error;
+        }
+
+        logfd->fd_file = f;
+        logfd->fd_offset = f->f_dentry->d_inode->i_size;
+
+        EXIT;
+        return error;
+}
+
+/* Get the KML-offset record from the last_rcvd file */
+int presto_read_kml_logical_offset(struct rec_info *recinfo,
+                                   struct presto_file_set *fset)
+{
+        loff_t off;
+        struct izo_rcvd_rec rec;
+        char uuid[16] = {0};
+
+        off = izo_rcvd_get(&rec, fset, uuid);
+        if (off < 0)
+                return -1;
+
+        recinfo->offset = rec.lr_local_offset;
+        return 0;
+}
+
+int presto_write_kml_logical_offset(struct presto_file_set *fset)
+{
+        loff_t rc;
+        struct izo_rcvd_rec rec;
+        char uuid[16] = {0};
+
+        rc = izo_rcvd_get(&rec, fset, uuid);
+        if (rc < 0)
+                memset(&rec, 0, sizeof(rec));
+
+        rec.lr_local_offset =
+                cpu_to_le64(fset->fset_kml_logical_off);
+
+        return izo_rcvd_write(fset, &rec);
+}
+
+struct file * presto_copy_kml_tail(struct presto_file_set *fset,
+                                   unsigned long int start)
+{
+        struct file *f;
+        int len;
+        loff_t read_off, write_off, bytes;
+
+        ENTRY;
+
+        /* Copy the tail of 'kml' to 'kml_tmp' */
+        f = izo_log_open(fset, "kml_tmp", O_RDWR);
+        if (IS_ERR(f)) {
+                EXIT;
+                return f;
+        }
+
+        write_off = 0;
+        read_off = start;
+        bytes = fset->fset_kml.fd_offset - start;
+        while (bytes > 0) {
+                char buf[4096];
+                int toread;
+
+                if (bytes > sizeof(buf))
+                        toread = sizeof(buf);
+                else
+                        toread = bytes;
+
+                len = presto_fread(fset->fset_kml.fd_file, buf, toread,
+                                   &read_off);
+                if (len <= 0)
+                        break;
+
+                if (presto_fwrite(f, buf, len, &write_off) != len) {
+                        filp_close(f, NULL);
+                        EXIT;
+                        return ERR_PTR(-EIO);
+                }
+
+                bytes -= len;
+        }
+
+        EXIT;
+        return f;
+}
+
+
+/* LML records here */
+/* this writes an LML record to the LML file (rec->is_kml =0)  */
+int presto_write_lml_close(struct rec_info *rec,
+                           struct presto_file_set *fset, 
+                           struct file *file,
+                           __u64 remote_ino,
+                           __u64 remote_generation,
+                           struct presto_version *remote_version,
+                           struct presto_version *new_file_ver)
+{
+        int opcode = KML_OPCODE_CLOSE;
+        char *buffer;
+        struct dentry *dentry = file->f_dentry; 
+        __u64 ino;
+        __u32 pathlen;
+        char *path;
+        __u32 generation;
+        int size;
+        char *logrecord;
+        char record[292];
+        struct dentry *root;
+        int error;
+
+        ENTRY;
+
+        if ( presto_no_journal(fset) ) {
+          EXIT;
+          return 0;
+        }
+        root = fset->fset_dentry;
+
+        BUFF_ALLOC(buffer, NULL);
+        path = presto_path(dentry, root, buffer, PAGE_SIZE);
+        CDEBUG(D_INODE, "Path: %s\n", path);
+        pathlen = cpu_to_le32(MYPATHLEN(buffer, path));
+        ino = cpu_to_le64(dentry->d_inode->i_ino);
+        generation = cpu_to_le32(dentry->d_inode->i_generation);
+        size =  sizeof(__u32) * current->ngroups + 
+                sizeof(struct kml_prefix_hdr) + sizeof(*new_file_ver) +
+                sizeof(ino) + sizeof(generation) + sizeof(pathlen) +
+                sizeof(remote_ino) + sizeof(remote_generation) + 
+                sizeof(remote_version) + sizeof(rec->offset) +
+                sizeof(struct kml_suffix);
+
+        if ( size > sizeof(record) )
+                CERROR("InterMezzo: BUFFER OVERFLOW in %s!\n", __FUNCTION__);
+        
+        rec->is_kml = 0;
+        rec->size = size + size_round(le32_to_cpu(pathlen));
+
+        logrecord = journal_log_prefix(record, opcode, rec);
+        logrecord = log_version(logrecord, new_file_ver);
+        logrecord = logit(logrecord, &ino, sizeof(ino));
+        logrecord = logit(logrecord, &generation, sizeof(generation));
+        logrecord = logit(logrecord, &pathlen, sizeof(pathlen));
+        logrecord = logit(logrecord, &remote_ino, sizeof(remote_ino));
+        logrecord = logit(logrecord, &remote_generation,
+                          sizeof(remote_generation));
+        logrecord = log_version(logrecord, remote_version);
+        logrecord = logit(logrecord, &rec->offset, sizeof(rec->offset));
+        logrecord = journal_log_suffix(logrecord, record, fset, dentry, rec);
+
+        error = presto_log(fset, rec, record, size,
+                           path, size_round(le32_to_cpu(pathlen)),
+                           NULL, 0, NULL, 0);
+
+        BUFF_FREE(buffer);
+
+        EXIT;
+        return error;
+}
+
+/* 
+ * Check if the given record is at the end of the file. If it is, truncate
+ * the lml to the record's offset, removing it. Repeat on prior record,
+ * until we reach an active record or a reserved record (as defined by the
+ * reservations list).
+ */
+static int presto_truncate_lml_tail(struct presto_file_set *fset)
+{
+        loff_t lml_tail;
+        loff_t lml_last_rec;
+        loff_t lml_last_recsize;
+        loff_t local_offset;
+        int recno;
+        struct kml_prefix_hdr prefix;
+        struct inode *inode = fset->fset_lml.fd_file->f_dentry->d_inode;
+        void *handle;
+        int rc;
+
+        ENTRY;
+        /* If someone else is already truncating the LML, return. */
+        write_lock(&fset->fset_lml.fd_lock); 
+        if (fset->fset_lml.fd_truncating == 1 ) {
+                write_unlock(&fset->fset_lml.fd_lock); 
+                EXIT;
+                return 0;
+        }
+        /* someone is about to write to the end of the LML */ 
+        if ( !list_empty(&fset->fset_lml.fd_reservations) ) {
+                write_unlock(&fset->fset_lml.fd_lock); 
+                EXIT;
+                return 0;
+        }
+       lml_tail = fset->fset_lml.fd_file->f_dentry->d_inode->i_size;
+       /* Nothing to truncate?*/
+       if (lml_tail == 0) {
+                write_unlock(&fset->fset_lml.fd_lock); 
+                EXIT;
+                return 0;
+       }
+       fset->fset_lml.fd_truncating = 1;
+       write_unlock(&fset->fset_lml.fd_lock); 
+
+       presto_last_record(&fset->fset_lml, &lml_last_recsize,
+                          &lml_last_rec, &recno, lml_tail);
+       /* Do we have a record to check? If not we have zeroes at the
+          beginning of the file. -SHP
+       */
+       if (lml_last_recsize != 0) {
+                local_offset = lml_last_rec - lml_last_recsize;
+                rc = presto_fread(fset->fset_lml.fd_file, (char *)&prefix,  
+                                        sizeof(prefix), &local_offset); 
+                if (rc != sizeof(prefix)) {
+                        EXIT;
+                        goto tr_out;
+                }
+       
+                if ( prefix.opcode != KML_OPCODE_NOOP ) {
+                        EXIT;
+                        rc = 0;
+                        /* We may have zeroes at the end of the file, should
+                           we clear them out? -SHP
+                        */
+                        goto tr_out;
+                }
+        } else 
+                lml_last_rec=0;
+
+        handle = presto_trans_start(fset, inode, KML_OPCODE_TRUNC);
+        if ( IS_ERR(handle) ) {
+                EXIT;
+                rc = -ENOMEM;
+                goto tr_out;
+        }
+
+        rc = izo_do_truncate(fset, fset->fset_lml.fd_file->f_dentry, 
+                                lml_last_rec - lml_last_recsize, lml_tail);
+        presto_trans_commit(fset, handle); 
+        if ( rc == 0 ) {
+                rc = 1;
+        }
+        EXIT;
+
+ tr_out:
+        CDEBUG(D_JOURNAL, "rc = %d\n", rc);
+        write_lock(&fset->fset_lml.fd_lock);
+        fset->fset_lml.fd_truncating = 0;
+        write_unlock(&fset->fset_lml.fd_lock);
+        return rc;
+}
+
+int presto_truncate_lml(struct presto_file_set *fset)
+{
+        int rc; 
+        ENTRY;
+        
+        while ( (rc = presto_truncate_lml_tail(fset)) > 0);
+        if ( rc < 0 && rc != -EALREADY) {
+                CERROR("truncate_lml error %d\n", rc); 
+        }
+        EXIT;
+        return rc;
+}
+
+int presto_clear_lml_close(struct presto_file_set *fset, loff_t lml_offset)
+{
+        int rc;
+        struct kml_prefix_hdr record;
+        loff_t offset = lml_offset;
+
+        ENTRY;
+
+        if ( presto_no_journal(fset) ) {
+                EXIT;
+                return 0;
+        }
+
+        CDEBUG(D_JOURNAL, "reading prefix: off %ld, size %d\n", 
+               (long)lml_offset, sizeof(record));
+        rc = presto_fread(fset->fset_lml.fd_file, (char *)&record,
+                          sizeof(record), &offset);
+
+        if ( rc != sizeof(record) ) {
+                CERROR("presto: clear_lml io error %d\n", rc); 
+                EXIT;
+                return -EIO;
+        }
+
+        /* overwrite the prefix */ 
+        CDEBUG(D_JOURNAL, "overwriting prefix: off %ld\n", (long)lml_offset);
+        record.opcode = KML_OPCODE_NOOP;
+        offset = lml_offset;
+        /* note: this does just a single transaction in the cache */
+        rc = presto_fwrite(fset->fset_lml.fd_file, (char *)(&record), 
+                              sizeof(record), &offset);
+        if ( rc != sizeof(record) ) {
+                EXIT;
+                return -EIO;
+        }
+
+        EXIT;
+        return 0; 
+}
+
+
+
+/* now a journal function for every operation */
+
+int presto_journal_setattr(struct rec_info *rec, struct presto_file_set *fset,
+                           struct dentry *dentry, struct presto_version *old_ver,
+                           struct izo_rollback_data *rb, struct iattr *iattr)
+{
+        int opcode = KML_OPCODE_SETATTR;
+        char *buffer, *path, *logrecord, record[316];
+        struct dentry *root;
+        __u32 uid, gid, mode, valid, flags, pathlen;
+        __u64 fsize, mtime, ctime;
+        int error, size;
+
+        ENTRY;
+        if ( presto_no_journal(fset) ) {
+                EXIT;
+                return 0;
+        }
+
+        if (!dentry->d_inode || (dentry->d_inode->i_nlink == 0) 
+            || ((dentry->d_parent != dentry) && list_empty(&dentry->d_hash))) {
+                EXIT;
+                return 0;
+        }
+
+        root = fset->fset_dentry;
+
+        BUFF_ALLOC(buffer, NULL);
+        path = presto_path(dentry, root, buffer, PAGE_SIZE);
+        pathlen = cpu_to_le32(MYPATHLEN(buffer, path));
+        size =  sizeof(__u32) * current->ngroups + 
+                sizeof(struct kml_prefix_hdr) + sizeof(*old_ver) +
+                sizeof(valid) + sizeof(mode) + sizeof(uid) + sizeof(gid) +
+                sizeof(fsize) + sizeof(mtime) + sizeof(ctime) + sizeof(flags) +
+                sizeof(pathlen) + sizeof(*rb) + sizeof(struct kml_suffix);
+
+        if ( size > sizeof(record) )
+                CERROR("InterMezzo: BUFFER OVERFLOW in %s!\n", __FUNCTION__);
+
+        /* Only journal one kind of mtime, and not atime at all.  Also don't
+         * journal bogus data in iattr, to make the journal more compressible.
+         */
+        if (iattr->ia_valid & ATTR_MTIME_SET)
+                iattr->ia_valid = iattr->ia_valid | ATTR_MTIME;
+        valid = cpu_to_le32(iattr->ia_valid & ~(ATTR_ATIME | ATTR_MTIME_SET |
+                                                ATTR_ATIME_SET));
+        mode = iattr->ia_valid & ATTR_MODE ? cpu_to_le32(iattr->ia_mode): 0;
+        uid = iattr->ia_valid & ATTR_UID ? cpu_to_le32(iattr->ia_uid): 0;
+        gid = iattr->ia_valid & ATTR_GID ? cpu_to_le32(iattr->ia_gid): 0;
+        fsize = iattr->ia_valid & ATTR_SIZE ? cpu_to_le64(iattr->ia_size): 0;
+        mtime = iattr->ia_valid & ATTR_MTIME ? cpu_to_le64(iattr->ia_mtime): 0;
+        ctime = iattr->ia_valid & ATTR_CTIME ? cpu_to_le64(iattr->ia_ctime): 0;
+        flags = iattr->ia_valid & ATTR_ATTR_FLAG ?
+                cpu_to_le32(iattr->ia_attr_flags): 0;
+
+        rec->is_kml = 1;
+        rec->size = size + size_round(le32_to_cpu(pathlen));
+
+        logrecord = journal_log_prefix(record, opcode, rec);
+        logrecord = log_version(logrecord, old_ver);
+        logrecord = logit(logrecord, &valid, sizeof(valid));
+        logrecord = logit(logrecord, &mode, sizeof(mode));
+        logrecord = logit(logrecord, &uid, sizeof(uid));
+        logrecord = logit(logrecord, &gid, sizeof(gid));
+        logrecord = logit(logrecord, &fsize, sizeof(fsize));
+        logrecord = logit(logrecord, &mtime, sizeof(mtime));
+        logrecord = logit(logrecord, &ctime, sizeof(ctime));
+        logrecord = logit(logrecord, &flags, sizeof(flags));
+        logrecord = log_rollback(logrecord, rb);
+        logrecord = logit(logrecord, &pathlen, sizeof(pathlen));
+        logrecord = journal_log_suffix(logrecord, record, fset, dentry, rec);
+
+        error = presto_log(fset, rec, record, size,
+                           path, size_round(le32_to_cpu(pathlen)),
+                           NULL, 0, NULL, 0);
+
+        BUFF_FREE(buffer);
+        EXIT;
+        return error;
+}
+
+int presto_get_fileid(int minor, struct presto_file_set *fset,
+                      struct dentry *dentry)
+{
+        int opcode = KML_OPCODE_GET_FILEID;
+        struct rec_info rec;
+        char *buffer, *path, *logrecord, record[4096]; /*include path*/
+        struct dentry *root;
+        __u32 uid, gid, pathlen;
+        int error, size;
+        struct kml_suffix *suffix;
+
+        ENTRY;
+
+        root = fset->fset_dentry;
+
+        uid = cpu_to_le32(dentry->d_inode->i_uid);
+        gid = cpu_to_le32(dentry->d_inode->i_gid);
+        BUFF_ALLOC(buffer, NULL);
+        path = presto_path(dentry, root, buffer, PAGE_SIZE);
+        pathlen = cpu_to_le32(MYPATHLEN(buffer, path));
+        size =  sizeof(__u32) * current->ngroups + 
+                sizeof(struct kml_prefix_hdr) + sizeof(pathlen) +
+                size_round(le32_to_cpu(pathlen)) +
+                sizeof(struct kml_suffix);
+
+        CDEBUG(D_FILE, "kml size: %d\n", size);
+        if ( size > sizeof(record) )
+                CERROR("InterMezzo: BUFFER OVERFLOW in %s!\n", __FUNCTION__);
+
+        memset(&rec, 0, sizeof(rec));
+        rec.is_kml = 1;
+        rec.size = size;
+
+        logrecord = journal_log_prefix(record, opcode, &rec);
+        logrecord = logit(logrecord, &pathlen, sizeof(pathlen));
+        logrecord = logit(logrecord, path, size_round(le32_to_cpu(pathlen)));
+        suffix = (struct kml_suffix *)logrecord;
+        logrecord = journal_log_suffix(logrecord, record, fset, dentry, &rec);
+        /* journal_log_suffix expects journal_log to set this */
+        suffix->recno = 0;
+
+        CDEBUG(D_FILE, "actual kml size: %d\n", logrecord - record);
+        CDEBUG(D_FILE, "get fileid: uid %d, gid %d, path: %s\n", uid, gid,path);
+
+        error = izo_upc_get_fileid(minor, size, record, 
+                                   size_round(le32_to_cpu(pathlen)), path,
+                                   fset->fset_name);
+
+        BUFF_FREE(buffer);
+        EXIT;
+        return error;
+}
+
+int presto_journal_create(struct rec_info *rec, struct presto_file_set *fset,
+                          struct dentry *dentry,
+                          struct presto_version *tgt_dir_ver,
+                          struct presto_version *new_file_ver, int mode)
+{
+        int opcode = KML_OPCODE_CREATE;
+        char *buffer, *path, *logrecord, record[292];
+        struct dentry *root;
+        __u32 uid, gid, lmode, pathlen;
+        int error, size;
+
+        ENTRY;
+        if ( presto_no_journal(fset) ) {
+                EXIT;
+                return 0;
+        }
+
+        root = fset->fset_dentry;
+
+        uid = cpu_to_le32(dentry->d_inode->i_uid);
+        gid = cpu_to_le32(dentry->d_inode->i_gid);
+        lmode = cpu_to_le32(mode);
+ 
+        BUFF_ALLOC(buffer, NULL);
+        path = presto_path(dentry, root, buffer, PAGE_SIZE);
+        pathlen = cpu_to_le32(MYPATHLEN(buffer, path));
+        size =  sizeof(__u32) * current->ngroups + 
+                sizeof(struct kml_prefix_hdr) + 3 * sizeof(*tgt_dir_ver) +
+                sizeof(lmode) + sizeof(uid) + sizeof(gid) + sizeof(pathlen) +
+                sizeof(struct kml_suffix);
+
+        if ( size > sizeof(record) )
+                CERROR("InterMezzo: BUFFER OVERFLOW in %s!\n", __FUNCTION__);
+
+        rec->is_kml = 1;
+        rec->size = size + size_round(le32_to_cpu(pathlen));
+
+        logrecord = journal_log_prefix(record, opcode, rec);
+        logrecord = log_version(logrecord, tgt_dir_ver);
+        logrecord = log_dentry_version(logrecord, dentry->d_parent);
+        logrecord = log_version(logrecord, new_file_ver);
+        logrecord = logit(logrecord, &lmode, sizeof(lmode));
+        logrecord = logit(logrecord, &uid, sizeof(uid));
+        logrecord = logit(logrecord, &gid, sizeof(gid));
+        logrecord = logit(logrecord, &pathlen, sizeof(pathlen));
+        logrecord = journal_log_suffix(logrecord, record, fset, dentry, rec);
+
+        error = presto_log(fset, rec, record, size,
+                           path, size_round(le32_to_cpu(pathlen)),
+                           NULL, 0, NULL, 0);
+
+        BUFF_FREE(buffer);
+        EXIT;
+        return error;
+}
+
+int presto_journal_symlink(struct rec_info *rec, struct presto_file_set *fset,
+                           struct dentry *dentry, const char *target,
+                           struct presto_version *tgt_dir_ver,
+                           struct presto_version *new_link_ver)
+{
+        int opcode = KML_OPCODE_SYMLINK;
+        char *buffer, *path, *logrecord, record[292];
+        struct dentry *root;
+        __u32 uid, gid, pathlen;
+        __u32 targetlen = cpu_to_le32(strlen(target));
+        int error, size;
+
+        ENTRY;
+        if ( presto_no_journal(fset) ) {
+                EXIT;
+                return 0;
+        }
+
+        root = fset->fset_dentry;
+
+        uid = cpu_to_le32(dentry->d_inode->i_uid);
+        gid = cpu_to_le32(dentry->d_inode->i_gid);
+
+        BUFF_ALLOC(buffer, NULL);
+        path = presto_path(dentry, root, buffer, PAGE_SIZE);
+        pathlen = cpu_to_le32(MYPATHLEN(buffer, path));
+        size =  sizeof(__u32) * current->ngroups + 
+                sizeof(struct kml_prefix_hdr) + 3 * sizeof(*tgt_dir_ver) +
+                sizeof(uid) + sizeof(gid) + sizeof(pathlen) +
+                sizeof(targetlen) + sizeof(struct kml_suffix);
+
+        if ( size > sizeof(record) )
+                CERROR("InterMezzo: BUFFER OVERFLOW in %s!\n", __FUNCTION__);
+
+        rec->is_kml = 1;
+        rec->size = size + size_round(le32_to_cpu(pathlen)) +
+                size_round(le32_to_cpu(targetlen));
+
+        logrecord = journal_log_prefix(record, opcode, rec);
+        logrecord = log_version(logrecord, tgt_dir_ver);
+        logrecord = log_dentry_version(logrecord, dentry->d_parent);
+        logrecord = log_version(logrecord, new_link_ver);
+        logrecord = logit(logrecord, &uid, sizeof(uid));
+        logrecord = logit(logrecord, &gid, sizeof(gid));
+        logrecord = logit(logrecord, &pathlen, sizeof(pathlen));
+        logrecord = logit(logrecord, &targetlen, sizeof(targetlen));
+        logrecord = journal_log_suffix(logrecord, record, fset, dentry, rec);
+
+        error = presto_log(fset, rec, record, size,
+                           path, size_round(le32_to_cpu(pathlen)),
+                           target, size_round(le32_to_cpu(targetlen)),
+                           NULL, 0);
+
+        BUFF_FREE(buffer);
+        EXIT;
+        return error;
+}
+
+int presto_journal_mkdir(struct rec_info *rec, struct presto_file_set *fset,
+                         struct dentry *dentry,
+                         struct presto_version *tgt_dir_ver,
+                         struct presto_version *new_dir_ver, int mode)
+{
+        int opcode = KML_OPCODE_MKDIR;
+        char *buffer, *path, *logrecord, record[292];
+        struct dentry *root;
+        __u32 uid, gid, lmode, pathlen;
+        int error, size;
+
+        ENTRY;
+        if ( presto_no_journal(fset) ) {
+                EXIT;
+                return 0;
+        }
+
+        root = fset->fset_dentry;
+
+        uid = cpu_to_le32(dentry->d_inode->i_uid);
+        gid = cpu_to_le32(dentry->d_inode->i_gid);
+        lmode = cpu_to_le32(mode);
+
+        BUFF_ALLOC(buffer, NULL);
+        path = presto_path(dentry, root, buffer, PAGE_SIZE);
+        pathlen = cpu_to_le32(MYPATHLEN(buffer, path));
+        size = sizeof(__u32) * current->ngroups + 
+                sizeof(struct kml_prefix_hdr) + 3 * sizeof(*tgt_dir_ver) +
+                sizeof(lmode) + sizeof(uid) + sizeof(gid) + sizeof(pathlen) +
+                sizeof(struct kml_suffix);
+
+        if ( size > sizeof(record) )
+                CERROR("InterMezzo: BUFFER OVERFLOW in %s!\n", __FUNCTION__);
+
+        rec->is_kml = 1;
+        rec->size = size + size_round(le32_to_cpu(pathlen));
+        logrecord = journal_log_prefix(record, opcode, rec);
+
+        logrecord = log_version(logrecord, tgt_dir_ver);
+        logrecord = log_dentry_version(logrecord, dentry->d_parent);
+        logrecord = log_version(logrecord, new_dir_ver);
+        logrecord = logit(logrecord, &lmode, sizeof(lmode));
+        logrecord = logit(logrecord, &uid, sizeof(uid));
+        logrecord = logit(logrecord, &gid, sizeof(gid));
+        logrecord = logit(logrecord, &pathlen, sizeof(pathlen));
+        logrecord = journal_log_suffix(logrecord, record, fset, dentry, rec);
+
+        error = presto_log(fset, rec, record, size,
+                           path, size_round(le32_to_cpu(pathlen)),
+                           NULL, 0, NULL, 0);
+
+        BUFF_FREE(buffer);
+        EXIT;
+        return error;
+}
+
+
+int
+presto_journal_rmdir(struct rec_info *rec, struct presto_file_set *fset,
+                     struct dentry *dir, struct presto_version *tgt_dir_ver,
+                     struct presto_version *old_dir_ver,
+                     struct izo_rollback_data *rb, int len, const char *name)
+{
+        int opcode = KML_OPCODE_RMDIR;
+        char *buffer, *path, *logrecord, record[316];
+        __u32 pathlen, llen;
+        struct dentry *root;
+        int error, size;
+
+        ENTRY;
+        if ( presto_no_journal(fset) ) {
+                EXIT;
+                return 0;
+        }
+
+        root = fset->fset_dentry;
+
+        llen = cpu_to_le32(len);
+        BUFF_ALLOC(buffer, NULL);
+        path = presto_path(dir, root, buffer, PAGE_SIZE);
+        pathlen = cpu_to_le32(MYPATHLEN(buffer, path));
+        size =  sizeof(__u32) * current->ngroups + 
+                sizeof(struct kml_prefix_hdr) + 3 * sizeof(*tgt_dir_ver) +
+                sizeof(pathlen) + sizeof(llen) + sizeof(*rb) +
+                sizeof(struct kml_suffix);
+
+        if ( size > sizeof(record) )
+                CERROR("InterMezzo: BUFFER OVERFLOW in %s!\n", __FUNCTION__);
+
+        CDEBUG(D_JOURNAL, "path: %s (%d), name: %s (%d), size %d\n",
+               path, pathlen, name, len, size);
+
+        rec->is_kml = 1;
+        rec->size = size + size_round(le32_to_cpu(pathlen)) + 
+                size_round(len);
+
+        logrecord = journal_log_prefix(record, opcode, rec);
+        logrecord = log_version(logrecord, tgt_dir_ver);
+        logrecord = log_dentry_version(logrecord, dir);
+        logrecord = log_version(logrecord, old_dir_ver);
+        logrecord = logit(logrecord, rb, sizeof(*rb));
+        logrecord = logit(logrecord, &pathlen, sizeof(pathlen));
+        logrecord = logit(logrecord, &llen, sizeof(llen));
+        logrecord = journal_log_suffix(logrecord, record, fset, dir, rec);
+        error = presto_log(fset, rec, record, size,
+                           path, size_round(le32_to_cpu(pathlen)),
+                           name, size_round(len),
+                           NULL, 0);
+
+        BUFF_FREE(buffer);
+        EXIT;
+        return error;
+}
+
+
+int
+presto_journal_mknod(struct rec_info *rec, struct presto_file_set *fset,
+                     struct dentry *dentry, struct presto_version *tgt_dir_ver,
+                     struct presto_version *new_node_ver, int mode,
+                     int dmajor, int dminor )
+{
+        int opcode = KML_OPCODE_MKNOD;
+        char *buffer, *path, *logrecord, record[292];
+        struct dentry *root;
+        __u32 uid, gid, lmode, lmajor, lminor, pathlen;
+        int error, size;
+
+        ENTRY;
+        if ( presto_no_journal(fset) ) {
+                EXIT;
+                return 0;
+        }
+
+        root = fset->fset_dentry;
+
+        uid = cpu_to_le32(dentry->d_inode->i_uid);
+        gid = cpu_to_le32(dentry->d_inode->i_gid);
+        lmode = cpu_to_le32(mode);
+        lmajor = cpu_to_le32(dmajor);
+        lminor = cpu_to_le32(dminor);
+
+        BUFF_ALLOC(buffer, NULL);
+        path = presto_path(dentry, root, buffer, PAGE_SIZE);
+        pathlen = cpu_to_le32(MYPATHLEN(buffer, path));
+        size = sizeof(__u32) * current->ngroups + 
+                sizeof(struct kml_prefix_hdr) + 3 * sizeof(*tgt_dir_ver) +
+                sizeof(lmode) + sizeof(uid) + sizeof(gid) + sizeof(lmajor) +
+                sizeof(lminor) + sizeof(pathlen) +
+                sizeof(struct kml_suffix);
+
+        if ( size > sizeof(record) )
+                CERROR("InterMezzo: BUFFER OVERFLOW in %s!\n", __FUNCTION__);
+
+        rec->is_kml = 1;
+        rec->size = size + size_round(le32_to_cpu(pathlen));
+
+        logrecord = journal_log_prefix(record, opcode, rec);
+        logrecord = log_version(logrecord, tgt_dir_ver);
+        logrecord = log_dentry_version(logrecord, dentry->d_parent);
+        logrecord = log_version(logrecord, new_node_ver);
+        logrecord = logit(logrecord, &lmode, sizeof(lmode));
+        logrecord = logit(logrecord, &uid, sizeof(uid));
+        logrecord = logit(logrecord, &gid, sizeof(gid));
+        logrecord = logit(logrecord, &lmajor, sizeof(lmajor));
+        logrecord = logit(logrecord, &lminor, sizeof(lminor));
+        logrecord = logit(logrecord, &pathlen, sizeof(pathlen));
+        logrecord = journal_log_suffix(logrecord, record, fset, dentry, rec);
+
+        error = presto_log(fset, rec, record, size,
+                           path, size_round(le32_to_cpu(pathlen)),
+                           NULL, 0, NULL, 0);
+
+        BUFF_FREE(buffer);
+        EXIT;
+        return error;
+}
+
+int
+presto_journal_link(struct rec_info *rec, struct presto_file_set *fset,
+                    struct dentry *src, struct dentry *tgt,
+                    struct presto_version *tgt_dir_ver,
+                    struct presto_version *new_link_ver)
+{
+        int opcode = KML_OPCODE_LINK;
+        char *buffer, *srcbuffer, *path, *srcpath, *logrecord, record[292];
+        __u32 pathlen, srcpathlen;
+        struct dentry *root;
+        int error, size;
+
+        ENTRY;
+        if ( presto_no_journal(fset) ) {
+                EXIT;
+                return 0;
+        }
+
+        root = fset->fset_dentry;
+
+        BUFF_ALLOC(srcbuffer, NULL);
+        srcpath = presto_path(src, root, srcbuffer, PAGE_SIZE);
+        srcpathlen = cpu_to_le32(MYPATHLEN(srcbuffer, srcpath));
+
+        BUFF_ALLOC(buffer, srcbuffer);
+        path = presto_path(tgt, root, buffer, PAGE_SIZE);
+        pathlen = cpu_to_le32(MYPATHLEN(buffer, path));
+        size =  sizeof(__u32) * current->ngroups + 
+                sizeof(struct kml_prefix_hdr) + 3 * sizeof(*tgt_dir_ver) +
+                sizeof(srcpathlen) + sizeof(pathlen) +
+                sizeof(struct kml_suffix);
+
+        if ( size > sizeof(record) )
+                CERROR("InterMezzo: BUFFER OVERFLOW in %s!\n", __FUNCTION__);
+
+        rec->is_kml = 1;
+        rec->size = size + size_round(le32_to_cpu(pathlen)) + 
+                size_round(le32_to_cpu(srcpathlen));
+
+        logrecord = journal_log_prefix(record, opcode, rec);
+        logrecord = log_version(logrecord, tgt_dir_ver);
+        logrecord = log_dentry_version(logrecord, tgt->d_parent);
+        logrecord = log_version(logrecord, new_link_ver);
+        logrecord = logit(logrecord, &srcpathlen, sizeof(srcpathlen));
+        logrecord = logit(logrecord, &pathlen, sizeof(pathlen));
+        logrecord = journal_log_suffix(logrecord, record, fset, tgt, rec);
+
+        error = presto_log(fset, rec, record, size,
+                           srcpath, size_round(le32_to_cpu(srcpathlen)),
+                           path, size_round(le32_to_cpu(pathlen)),
+                           NULL, 0);
+
+        BUFF_FREE(srcbuffer);
+        BUFF_FREE(buffer);
+        EXIT;
+        return error;
+}
+
+
+int presto_journal_rename(struct rec_info *rec, struct presto_file_set *fset,
+                          struct dentry *src, struct dentry *tgt,
+                          struct presto_version *src_dir_ver,
+                          struct presto_version *tgt_dir_ver)
+{
+        int opcode = KML_OPCODE_RENAME;
+        char *buffer, *srcbuffer, *path, *srcpath, *logrecord, record[292];
+        __u32 pathlen, srcpathlen;
+        struct dentry *root;
+        int error, size;
+
+        ENTRY;
+        if ( presto_no_journal(fset) ) {
+                EXIT;
+                return 0;
+        }
+
+        root = fset->fset_dentry;
+
+        BUFF_ALLOC(srcbuffer, NULL);
+        srcpath = presto_path(src, root, srcbuffer, PAGE_SIZE);
+        srcpathlen = cpu_to_le32(MYPATHLEN(srcbuffer, srcpath));
+
+        BUFF_ALLOC(buffer, srcbuffer);
+        path = presto_path(tgt, root, buffer, PAGE_SIZE);
+        pathlen = cpu_to_le32(MYPATHLEN(buffer, path));
+        size =  sizeof(__u32) * current->ngroups + 
+                sizeof(struct kml_prefix_hdr) + 4 * sizeof(*src_dir_ver) +
+                sizeof(srcpathlen) + sizeof(pathlen) +
+                sizeof(struct kml_suffix);
+
+        if ( size > sizeof(record) )
+                CERROR("InterMezzo: BUFFER OVERFLOW in %s!\n", __FUNCTION__);
+
+        rec->is_kml = 1;
+        rec->size = size + size_round(le32_to_cpu(pathlen)) + 
+                size_round(le32_to_cpu(srcpathlen));
+
+        logrecord = journal_log_prefix(record, opcode, rec);
+        logrecord = log_version(logrecord, src_dir_ver);
+        logrecord = log_dentry_version(logrecord, src->d_parent);
+        logrecord = log_version(logrecord, tgt_dir_ver);
+        logrecord = log_dentry_version(logrecord, tgt->d_parent);
+        logrecord = logit(logrecord, &srcpathlen, sizeof(srcpathlen));
+        logrecord = logit(logrecord, &pathlen, sizeof(pathlen));
+        logrecord = journal_log_suffix(logrecord, record, fset, tgt, rec);
+
+        error = presto_log(fset, rec, record, size,
+                           srcpath, size_round(le32_to_cpu(srcpathlen)),
+                           path, size_round(le32_to_cpu(pathlen)),
+                           NULL, 0);
+
+        BUFF_FREE(buffer);
+        BUFF_FREE(srcbuffer);
+        EXIT;
+        return error;
+}
+
+int presto_journal_unlink(struct rec_info *rec, struct presto_file_set *fset,
+                          struct dentry *dir, struct presto_version *tgt_dir_ver,
+                          struct presto_version *old_file_ver,
+                          struct izo_rollback_data *rb, struct dentry *dentry,
+                          char *old_target, int old_targetlen)
+{
+        int opcode = KML_OPCODE_UNLINK;
+        char *buffer, *path, *logrecord, record[316];
+        const char *name;
+        __u32 pathlen, llen;
+        struct dentry *root;
+        int error, size, len;
+
+        ENTRY;
+        if ( presto_no_journal(fset) ) {
+                EXIT;
+                return 0;
+        }
+
+        root = fset->fset_dentry;
+
+        name = dentry->d_name.name;
+        len = dentry->d_name.len;
+
+        llen = cpu_to_le32(len);
+        BUFF_ALLOC(buffer, NULL);
+        path = presto_path(dir, root, buffer, PAGE_SIZE);
+        pathlen = cpu_to_le32(MYPATHLEN(buffer, path));
+        size = sizeof(__u32) * current->ngroups + 
+                sizeof(struct kml_prefix_hdr) + 3 * sizeof(*tgt_dir_ver) +
+                sizeof(pathlen) + sizeof(llen) + sizeof(*rb) +
+                sizeof(old_targetlen) + sizeof(struct kml_suffix);
+
+        if ( size > sizeof(record) )
+                CERROR("InterMezzo: BUFFER OVERFLOW in %s!\n", __FUNCTION__);
+
+        rec->is_kml = 1;
+        rec->size = size + size_round(le32_to_cpu(pathlen)) + size_round(len) +
+                size_round(old_targetlen);
+
+        logrecord = journal_log_prefix(record, opcode, rec);
+        logrecord = log_version(logrecord, tgt_dir_ver);
+        logrecord = log_dentry_version(logrecord, dir);
+        logrecord = log_version(logrecord, old_file_ver);
+        logrecord = log_rollback(logrecord, rb);
+        logrecord = logit(logrecord, &pathlen, sizeof(pathlen));
+        logrecord = logit(logrecord, &llen, sizeof(llen));
+        logrecord = logit(logrecord, &old_targetlen, sizeof(old_targetlen));
+        logrecord = journal_log_suffix(logrecord, record, fset, dir, rec);
+
+        error = presto_log(fset, rec, record, size,
+                           path, size_round(le32_to_cpu(pathlen)),
+                           name, size_round(len),
+                           old_target, size_round(old_targetlen));
+
+        BUFF_FREE(buffer);
+        EXIT;
+        return error;
+}
+
+int
+presto_journal_close(struct rec_info *rec, struct presto_file_set *fset,
+                     struct file *file, struct dentry *dentry,
+                     struct presto_version *old_file_ver,
+                     struct presto_version *new_file_ver)
+{
+        int opcode = KML_OPCODE_CLOSE;
+        struct presto_file_data *fd;
+        char *buffer, *path, *logrecord, record[316];
+        struct dentry *root;
+        int error, size, i;
+        __u32 pathlen, generation;
+        __u64 ino;
+        __u32 open_fsuid;
+        __u32 open_fsgid;
+        __u32 open_ngroups;
+        __u32 open_groups[NGROUPS_MAX];
+        __u32 open_mode;
+        __u32 open_uid;
+        __u32 open_gid;
+
+        ENTRY;
+
+        if ( presto_no_journal(fset) ) {
+                EXIT;
+                return 0;
+        }
+
+        if (!dentry->d_inode || (dentry->d_inode->i_nlink == 0) 
+            || ((dentry->d_parent != dentry) && list_empty(&dentry->d_hash))) {
+                EXIT;
+                return 0;
+        }
+
+        root = fset->fset_dentry;
+
+        fd = (struct presto_file_data *)file->private_data;
+        if (fd) {
+                open_ngroups = fd->fd_ngroups;
+                for (i = 0; i < fd->fd_ngroups; i++)
+                        open_groups[i] = (__u32) fd->fd_groups[i];
+                open_mode = fd->fd_mode;
+                open_uid = fd->fd_uid;
+                open_gid = fd->fd_gid;
+                open_fsuid = fd->fd_fsuid;
+                open_fsgid = fd->fd_fsgid;
+        } else {
+                open_ngroups = current->ngroups;
+                for (i=0; i<current->ngroups; i++)
+                        open_groups[i] =  (__u32) current->groups[i]; 
+                open_mode = dentry->d_inode->i_mode;
+                open_uid = dentry->d_inode->i_uid;
+                open_gid = dentry->d_inode->i_gid;
+                open_fsuid = current->fsuid;
+                open_fsgid = current->fsgid;
+        }
+        BUFF_ALLOC(buffer, NULL);
+        path = presto_path(dentry, root, buffer, PAGE_SIZE);
+        pathlen = cpu_to_le32(MYPATHLEN(buffer, path));
+        ino = cpu_to_le64(dentry->d_inode->i_ino);
+        generation = cpu_to_le32(dentry->d_inode->i_generation);
+        size =  sizeof(__u32) * open_ngroups +
+                sizeof(open_mode) + sizeof(open_uid) + sizeof(open_gid) +
+                sizeof(struct kml_prefix_hdr) + sizeof(*old_file_ver) +
+                sizeof(*new_file_ver) + sizeof(ino) + sizeof(generation) +
+                sizeof(pathlen) + sizeof(struct kml_suffix);
+
+        if ( size > sizeof(record) )
+                CERROR("InterMezzo: BUFFER OVERFLOW in %s!\n", __FUNCTION__);
+
+        rec->is_kml = 1;
+        rec->size = size + size_round(le32_to_cpu(pathlen));
+
+        logrecord = journal_log_prefix_with_groups_and_ids(
+                record, opcode, rec, open_ngroups, open_groups,
+                open_fsuid, open_fsgid);
+        logrecord = logit(logrecord, &open_mode, sizeof(open_mode));
+        logrecord = logit(logrecord, &open_uid, sizeof(open_uid));
+        logrecord = logit(logrecord, &open_gid, sizeof(open_gid));
+        logrecord = log_version(logrecord, old_file_ver);
+        logrecord = log_version(logrecord, new_file_ver);
+        logrecord = logit(logrecord, &ino, sizeof(ino));
+        logrecord = logit(logrecord, &generation, sizeof(generation));
+        logrecord = logit(logrecord, &pathlen, sizeof(pathlen));
+        logrecord = journal_log_suffix(logrecord, record, fset, dentry, rec);
+
+        error = presto_log(fset, rec, record, size,
+                           path, size_round(le32_to_cpu(pathlen)),
+                           NULL, 0, NULL, 0);
+        BUFF_FREE(buffer);
+
+        EXIT;
+        return error;
+}
+
+int presto_rewrite_close(struct rec_info *rec, struct presto_file_set *fset, 
+                         char *path, __u32 pathlen, 
+                         int ngroups, __u32 *groups, 
+                         __u64 ino,     __u32 generation, 
+                         struct presto_version *new_file_ver)
+{
+        int opcode = KML_OPCODE_CLOSE;
+        char *logrecord, record[292];
+        struct dentry *root;
+        int error, size;
+
+        ENTRY;
+
+        if ( presto_no_journal(fset) ) {
+                EXIT;
+                return 0;
+        }
+
+        root = fset->fset_dentry;
+
+        size =  sizeof(__u32) * ngroups + 
+                sizeof(struct kml_prefix_hdr) + sizeof(*new_file_ver) +
+                sizeof(ino) + sizeof(generation) + 
+                sizeof(le32_to_cpu(pathlen)) +
+                sizeof(struct kml_suffix);
+
+        if ( size > sizeof(record) )
+                CERROR("InterMezzo: BUFFER OVERFLOW in %s!\n", __FUNCTION__);
+
+        rec->is_kml = 1;
+        rec->size = size + size_round(le32_to_cpu(pathlen));
+
+        logrecord = journal_log_prefix_with_groups(record, opcode, rec,
+                                                   ngroups, groups);
+        logrecord = log_version(logrecord, new_file_ver);
+        logrecord = logit(logrecord, &ino, sizeof(ino));
+        logrecord = logit(logrecord, &generation, sizeof(generation));
+        logrecord = logit(logrecord, &pathlen, sizeof(pathlen));
+        logrecord = journal_log_suffix(logrecord, record, fset, NULL, rec);
+
+        error = presto_log(fset, rec, record, size,
+                           path, size_round(le32_to_cpu(pathlen)),
+                           NULL, 0, NULL, 0);
+
+        EXIT;
+        return error;
+}
+
+
+/* write closes for the local close records in the LML */ 
+int presto_complete_lml(struct presto_file_set *fset)
+{
+        __u32 groups[NGROUPS_MAX];
+        loff_t lml_offset;
+        loff_t read_offset; 
+        char *buffer;
+        void *handle;
+        struct rec_info rec;
+        struct close_rec { 
+                struct presto_version new_file_ver;
+                __u64 ino;
+                __u32 generation;
+                __u32 pathlen;
+                __u64 remote_ino;
+                __u32 remote_generation;
+                __u32 remote_version;
+                __u64 lml_offset;
+        } close_rec; 
+        struct file *file = fset->fset_lml.fd_file;
+        struct kml_prefix_hdr prefix;
+        int rc = 0;
+        ENTRY;
+
+        lml_offset = 0; 
+ again: 
+        if (lml_offset >= file->f_dentry->d_inode->i_size) {
+                EXIT;
+                return rc;
+        }
+
+        read_offset = lml_offset;
+        rc = presto_fread(file, (char *)&prefix,
+                          sizeof(prefix), &read_offset);
+        if ( rc != sizeof(prefix) ) {
+                EXIT;
+                CERROR("presto_complete_lml: ioerror - 1, tell Peter\n");
+                return -EIO;
+        }
+
+        if ( prefix.opcode == KML_OPCODE_NOOP ) {
+                lml_offset += prefix.len; 
+                goto again; 
+        }
+
+        rc = presto_fread(file, (char *)groups, 
+                          prefix.ngroups * sizeof(__u32), &read_offset); 
+        if ( rc != prefix.ngroups * sizeof(__u32) ) {
+                EXIT;
+                CERROR("presto_complete_lml: ioerror - 2, tell Peter\n");
+                return -EIO;
+        }
+
+        rc = presto_fread(file, (char *)&close_rec, 
+                          sizeof(close_rec), &read_offset); 
+        if ( rc != sizeof(close_rec) ) {
+                EXIT;
+                CERROR("presto_complete_lml: ioerror - 3, tell Peter\n");
+                return -EIO;
+        }
+
+        /* is this a backfetch or a close record? */ 
+        if ( le64_to_cpu(close_rec.remote_ino) != 0 ) { 
+                lml_offset += prefix.len;
+                goto again; 
+        }
+
+        BUFF_ALLOC(buffer, NULL);
+        rc = presto_fread(file, (char *)buffer, 
+                          le32_to_cpu(close_rec.pathlen), &read_offset); 
+        if ( rc != le32_to_cpu(close_rec.pathlen) ) {
+                EXIT;
+                CERROR("presto_complete_lml: ioerror - 4, tell Peter\n");
+                return -EIO;
+        }
+        
+        handle = presto_trans_start(fset, file->f_dentry->d_inode, 
+                                    KML_OPCODE_RELEASE);
+        if ( IS_ERR(handle) ) {
+                EXIT;
+                return -ENOMEM; 
+        }
+
+        rc = presto_clear_lml_close(fset, lml_offset); 
+        if ( rc ) {
+                CERROR("error during clearing: %d\n", rc);
+                presto_trans_commit(fset, handle);
+                EXIT; 
+                return rc; 
+        }
+
+        rc = presto_rewrite_close(&rec, fset, buffer, close_rec.pathlen, 
+                                  prefix.ngroups, groups, 
+                                  close_rec.ino, close_rec.generation,
+                                  &close_rec.new_file_ver); 
+        if ( rc ) {
+                CERROR("error during rewrite close: %d\n", rc);
+                presto_trans_commit(fset, handle);
+                EXIT; 
+                return rc; 
+        }
+
+        presto_trans_commit(fset, handle); 
+        if ( rc ) { 
+                CERROR("error during truncation: %d\n", rc);
+                EXIT; 
+                return rc;
+        }
+        
+        lml_offset += prefix.len; 
+        CDEBUG(D_JOURNAL, "next LML record at: %ld\n", (long)lml_offset);
+        goto again;
+
+        EXIT;
+        return -EINVAL;
+}
+
+
+#ifdef CONFIG_FS_EXT_ATTR
+/* Journal an ea operation. A NULL buffer implies the attribute is 
+ * getting deleted. In this case we simply change the opcode, but nothing
+ * else is affected.
+ */
+int presto_journal_set_ext_attr (struct rec_info *rec, 
+                                 struct presto_file_set *fset, 
+                                 struct dentry *dentry, 
+                                 struct presto_version *ver, const char *name, 
+                                 const char *buffer, int buffer_len, 
+                                 int flags) 
+{ 
+        int opcode = (buffer == NULL) ? 
+                     KML_OPCODE_DELEXTATTR : 
+                     KML_OPCODE_SETEXTATTR ;
+        char *temp, *path, *logrecord, record[292];
+        struct dentry *root;
+        int error, size;
+        __u32 namelen=cpu_to_le32(strnlen(name,PRESTO_EXT_ATTR_NAME_MAX));
+        __u32 buflen=(buffer != NULL)? cpu_to_le32(buffer_len): cpu_to_le32(0);
+        __u32 mode, pathlen;
+
+        ENTRY;
+        if ( presto_no_journal(fset) ) {
+                EXIT;
+                return 0;
+        }
+
+        if (!dentry->d_inode || (dentry->d_inode->i_nlink == 0) 
+            || ((dentry->d_parent != dentry) && list_empty(&dentry->d_hash))) {
+                EXIT;
+                return 0;
+        }
+
+        root = fset->fset_dentry;
+
+        BUFF_ALLOC(temp, NULL);
+        path = presto_path(dentry, root, temp, PAGE_SIZE);
+        pathlen = cpu_to_le32(MYPATHLEN(temp, path));
+
+        flags=cpu_to_le32(flags);
+        /* Ugly, but needed. posix ACLs change the mode without using
+         * setattr, we need to record these changes. The EA code per se
+         * is not really affected.
+         */
+        mode=cpu_to_le32(dentry->d_inode->i_mode);
+
+        size =  sizeof(__u32) * current->ngroups + 
+                sizeof(struct kml_prefix_hdr) + 
+                2 * sizeof(struct presto_version) +
+                sizeof(flags) + sizeof(mode) + sizeof(namelen) + 
+                sizeof(buflen) + sizeof(pathlen) + 
+                sizeof(struct kml_suffix);
+
+        if ( size > sizeof(record) )
+                CERROR("InterMezzo: BUFFER OVERFLOW in %s!\n", __FUNCTION__);
+
+        rec->is_kml = 1;
+        /* Make space for a path, a attr name and value*/
+        /* We use the buflen instead of buffer_len to make sure that we 
+         * journal the right length. This may be a little paranoid, but
+         * with 64 bits round the corner, I would rather be safe than sorry!
+         * Also this handles deletes with non-zero buffer_lengths correctly.
+         * SHP
+         */
+        rec->size = size + size_round(le32_to_cpu(pathlen)) +
+                    size_round(le32_to_cpu(namelen)) + 
+                    size_round(le32_to_cpu(buflen));
+
+        logrecord = journal_log_prefix(record, opcode, rec);
+        logrecord = log_version(logrecord, ver);
+        logrecord = log_dentry_version(logrecord, dentry);
+        logrecord = logit(logrecord, &flags, sizeof(flags));
+        logrecord = logit(logrecord, &mode, sizeof(flags));
+        logrecord = logit(logrecord, &pathlen, sizeof(pathlen));
+        logrecord = logit(logrecord, &namelen, sizeof(namelen));
+        logrecord = logit(logrecord, &buflen, sizeof(buflen));
+        logrecord = journal_log_suffix(logrecord, record, fset, dentry, rec);
+
+        error = presto_log(fset, rec, record, size,
+                           path, size_round(le32_to_cpu(pathlen)),
+                           name, size_round(le32_to_cpu(namelen)),
+                           buffer, size_round(le32_to_cpu(buflen)));
+
+        BUFF_FREE(temp);
+        EXIT;
+        return error;
+}
+#endif
diff --git a/fs/intermezzo/journal_ext2.c b/fs/intermezzo/journal_ext2.c
new file mode 100644
index 00000000000000..8a76e2a63266c3
--- /dev/null
+++ b/fs/intermezzo/journal_ext2.c
@@ -0,0 +1,91 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ *  Copyright (C) 1998 Peter J. Braam <braam@clusterfs.com>
+ *
+ *   This file is part of InterMezzo, http://www.inter-mezzo.org.
+ *
+ *   InterMezzo is free software; you can redistribute it and/or
+ *   modify it under the terms of version 2 of the GNU General Public
+ *   License as published by the Free Software Foundation.
+ *
+ *   InterMezzo is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with InterMezzo; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <asm/segment.h>
+#include <asm/uaccess.h>
+#include <linux/string.h>
+#include <linux/ext2_fs.h> 
+
+#include <linux/intermezzo_fs.h>
+#include <linux/intermezzo_psdev.h>
+
+#if defined(CONFIG_EXT2_FS)
+
+/* EXT2 has no journalling, so these functions do nothing */
+static loff_t presto_e2_freespace(struct presto_cache *cache,
+                                         struct super_block *sb)
+{
+        unsigned long freebl = le32_to_cpu(sb->u.ext2_sb.s_es->s_free_blocks_count);
+        unsigned long avail =   freebl - le32_to_cpu(sb->u.ext2_sb.s_es->s_r_blocks_count);
+	return (avail <<  EXT2_BLOCK_SIZE_BITS(sb));
+}
+
+/* start the filesystem journal operations */
+static void *presto_e2_trans_start(struct presto_file_set *fset, struct inode *inode, int op)
+{
+        __u32 avail_kmlblocks;
+
+        if ( presto_no_journal(fset) ||
+             strcmp(fset->fset_cache->cache_type, "ext2"))
+                return NULL;
+
+        avail_kmlblocks = inode->i_sb->u.ext2_sb.s_es->s_free_blocks_count;
+        
+        if ( avail_kmlblocks < 3 ) {
+                return ERR_PTR(-ENOSPC);
+        }
+        
+        if (  (op != KML_OPCODE_UNLINK && op != KML_OPCODE_RMDIR)
+              && avail_kmlblocks < 6 ) {
+                return ERR_PTR(-ENOSPC);
+        }            
+	return (void *) 1;
+}
+
+static void presto_e2_trans_commit(struct presto_file_set *fset, void *handle)
+{
+        do {} while (0);
+}
+
+static int presto_e2_has_all_data(struct inode *inode)
+{
+        BUG();
+        return 0;
+}
+
+struct journal_ops presto_ext2_journal_ops = {
+        tr_all_data: presto_e2_has_all_data,
+        tr_avail: presto_e2_freespace,
+        tr_start: presto_e2_trans_start,
+        tr_commit: presto_e2_trans_commit,
+        tr_journal_data: NULL
+};
+
+#endif /* CONFIG_EXT2_FS */
diff --git a/fs/intermezzo/journal_ext3.c b/fs/intermezzo/journal_ext3.c
new file mode 100644
index 00000000000000..de005486aad4c7
--- /dev/null
+++ b/fs/intermezzo/journal_ext3.c
@@ -0,0 +1,285 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ *  Copyright (C) 1998 Peter J. Braam <braam@clusterfs.com>
+ *  Copyright (C) 2000 Red Hat, Inc.
+ *  Copyright (C) 2000 Los Alamos National Laboratory
+ *  Copyright (C) 2000 TurboLinux, Inc.
+ *  Copyright (C) 2001 Mountain View Data, Inc.
+ *  Copyright (C) 2001 Tacit Networks, Inc. <phil@off.net>
+ *
+ *   This file is part of InterMezzo, http://www.inter-mezzo.org.
+ *
+ *   InterMezzo is free software; you can redistribute it and/or
+ *   modify it under the terms of version 2 of the GNU General Public
+ *   License as published by the Free Software Foundation.
+ *
+ *   InterMezzo is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with InterMezzo; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/types.h>
+#include <linux/param.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <asm/segment.h>
+#include <asm/uaccess.h>
+#include <linux/string.h>
+#include <linux/smp_lock.h>
+#if defined(CONFIG_EXT3_FS) || defined (CONFIG_EXT3_FS_MODULE)
+#include <linux/jbd.h>
+#include <linux/ext3_fs.h>
+#include <linux/ext3_jbd.h>
+#endif
+
+#include <linux/intermezzo_fs.h>
+#include <linux/intermezzo_psdev.h>
+
+#if defined(CONFIG_EXT3_FS) || defined (CONFIG_EXT3_FS_MODULE)
+
+#define MAX_PATH_BLOCKS(inode) (PATH_MAX >> EXT3_BLOCK_SIZE_BITS((inode)->i_sb))
+#define MAX_NAME_BLOCKS(inode) (NAME_MAX >> EXT3_BLOCK_SIZE_BITS((inode)->i_sb))
+
+/* space requirements: 
+   presto_do_truncate: 
+        used to truncate the KML forward to next fset->chunksize boundary
+          - zero partial block
+          - update inode
+   presto_write_record: 
+        write header (< one block) 
+        write one path (< MAX_PATHLEN) 
+        possibly write another path (< MAX_PATHLEN)
+        write suffix (< one block) 
+   presto_update_last_rcvd
+        write one block
+*/
+
+static loff_t presto_e3_freespace(struct presto_cache *cache,
+                                         struct super_block *sb)
+{
+        loff_t freebl = le32_to_cpu(sb->u.ext3_sb.s_es->s_free_blocks_count);
+        loff_t avail =   freebl - 
+                le32_to_cpu(sb->u.ext3_sb.s_es->s_r_blocks_count);
+        return (avail <<  EXT3_BLOCK_SIZE_BITS(sb));
+}
+
+/* start the filesystem journal operations */
+static void *presto_e3_trans_start(struct presto_file_set *fset, 
+                                   struct inode *inode, 
+                                   int op)
+{
+        int jblocks;
+        int trunc_blks, one_path_blks, extra_path_blks, 
+                extra_name_blks, lml_blks; 
+        __u32 avail_kmlblocks;
+        handle_t *handle;
+
+        if ( presto_no_journal(fset) ||
+             strcmp(fset->fset_cache->cache_type, "ext3"))
+          {
+            CDEBUG(D_JOURNAL, "got cache_type \"%s\"\n",
+                   fset->fset_cache->cache_type);
+            return NULL;
+          }
+
+        avail_kmlblocks = inode->i_sb->u.ext3_sb.s_es->s_free_blocks_count;
+        
+        if ( avail_kmlblocks < 3 ) {
+                return ERR_PTR(-ENOSPC);
+        }
+        
+        if (  (op != KML_OPCODE_UNLINK && op != KML_OPCODE_RMDIR)
+              && avail_kmlblocks < 6 ) {
+                return ERR_PTR(-ENOSPC);
+        }            
+
+        /* Need journal space for:
+             at least three writes to KML (two one block writes, one a path) 
+             possibly a second name (unlink, rmdir)
+             possibly a second path (symlink, rename)
+             a one block write to the last rcvd file 
+        */
+
+        trunc_blks = EXT3_DATA_TRANS_BLOCKS + 1; 
+        one_path_blks = 4*EXT3_DATA_TRANS_BLOCKS + MAX_PATH_BLOCKS(inode) + 3;
+        lml_blks = 4*EXT3_DATA_TRANS_BLOCKS + MAX_PATH_BLOCKS(inode) + 2;
+        extra_path_blks = EXT3_DATA_TRANS_BLOCKS + MAX_PATH_BLOCKS(inode); 
+        extra_name_blks = EXT3_DATA_TRANS_BLOCKS + MAX_NAME_BLOCKS(inode); 
+
+        /* additional blocks appear for "two pathname" operations
+           and operations involving the LML records 
+        */
+        switch (op) {
+        case KML_OPCODE_TRUNC:
+                jblocks = one_path_blks + extra_name_blks + trunc_blks
+                        + EXT3_DELETE_TRANS_BLOCKS; 
+                break;
+        case KML_OPCODE_KML_TRUNC:
+                /* Hopefully this is a little better, but I'm still mostly
+                 * guessing here. */
+                /* unlink 1 */
+                jblocks = extra_name_blks + trunc_blks +
+                        EXT3_DELETE_TRANS_BLOCKS + 2; 
+
+                /* unlink 2 */
+                jblocks += extra_name_blks + trunc_blks +
+                        EXT3_DELETE_TRANS_BLOCKS + 2; 
+
+                /* rename 1 */
+                jblocks += 2 * extra_path_blks + trunc_blks + 
+                        2 * EXT3_DATA_TRANS_BLOCKS + 2 + 3;
+
+                /* rename 2 */
+                jblocks += 2 * extra_path_blks + trunc_blks + 
+                        2 * EXT3_DATA_TRANS_BLOCKS + 2 + 3;
+                break;
+        case KML_OPCODE_RELEASE:
+                /* 
+                jblocks = one_path_blks + lml_blks + 2*trunc_blks; 
+                */
+                jblocks = one_path_blks; 
+                break;
+        case KML_OPCODE_SETATTR:
+                jblocks = one_path_blks + trunc_blks + 1 ; 
+                break;
+        case KML_OPCODE_CREATE:
+                jblocks = one_path_blks + trunc_blks 
+                        + EXT3_DATA_TRANS_BLOCKS + 3 + 2; 
+                break;
+        case KML_OPCODE_LINK:
+                jblocks = one_path_blks + trunc_blks 
+                        + EXT3_DATA_TRANS_BLOCKS + 2; 
+                break;
+        case KML_OPCODE_UNLINK:
+                jblocks = one_path_blks + extra_name_blks + trunc_blks
+                        + EXT3_DELETE_TRANS_BLOCKS + 2; 
+                break;
+        case KML_OPCODE_SYMLINK:
+                jblocks = one_path_blks + extra_path_blks + trunc_blks
+                        + EXT3_DATA_TRANS_BLOCKS + 5; 
+                break;
+        case KML_OPCODE_MKDIR:
+                jblocks = one_path_blks + trunc_blks
+                        + EXT3_DATA_TRANS_BLOCKS + 4 + 2;
+                break;
+        case KML_OPCODE_RMDIR:
+                jblocks = one_path_blks + extra_name_blks + trunc_blks
+                        + EXT3_DELETE_TRANS_BLOCKS + 1; 
+                break;
+        case KML_OPCODE_MKNOD:
+                jblocks = one_path_blks + trunc_blks + 
+                        EXT3_DATA_TRANS_BLOCKS + 3 + 2;
+                break;
+        case KML_OPCODE_RENAME:
+                jblocks = one_path_blks + extra_path_blks + trunc_blks + 
+                        2 * EXT3_DATA_TRANS_BLOCKS + 2 + 3;
+                break;
+        case KML_OPCODE_WRITE:
+                jblocks = one_path_blks; 
+                /*  add this when we can wrap our transaction with 
+                    that of ext3_file_write (ordered writes)
+                    +  EXT3_DATA_TRANS_BLOCKS;
+                */
+                break;
+        default:
+                CDEBUG(D_JOURNAL, "invalid operation %d for journal\n", op);
+                return NULL;
+        }
+
+        CDEBUG(D_JOURNAL, "creating journal handle (%d blocks) for op %d\n",
+               jblocks, op);
+        /* journal_start/stop does not do its own locking while updating
+         * the handle/transaction information. Hence we create our own
+         * critical section to protect these calls. -SHP
+         */
+        lock_kernel();
+        handle = journal_start(EXT3_JOURNAL(inode), jblocks);
+        unlock_kernel();
+        return handle;
+}
+
+static void presto_e3_trans_commit(struct presto_file_set *fset, void *handle)
+{
+        if ( presto_no_journal(fset) || !handle)
+                return;
+
+        /* See comments before journal_start above. -SHP */
+        lock_kernel();
+        journal_stop(handle);
+        unlock_kernel();
+}
+
+static void presto_e3_journal_file_data(struct inode *inode)
+{
+#ifdef EXT3_JOURNAL_DATA_FL
+        inode->u.ext3_i.i_flags |= EXT3_JOURNAL_DATA_FL;
+#else
+#warning You must have a facility to enable journaled writes for recovery!
+#endif
+}
+
+/* The logic here is a slightly modified version of ext3/inode.c:block_to_path
+ */
+static int presto_e3_has_all_data(struct inode *inode)
+{
+        int ptrs = EXT3_ADDR_PER_BLOCK(inode->i_sb);
+        int ptrs_bits = EXT3_ADDR_PER_BLOCK_BITS(inode->i_sb);
+        const long direct_blocks = EXT3_NDIR_BLOCKS,
+                indirect_blocks = ptrs,
+                double_blocks = (1 << (ptrs_bits * 2));
+        long block = (inode->i_size + inode->i_sb->s_blocksize - 1) >>
+                inode->i_sb->s_blocksize_bits;
+
+        ENTRY;
+
+        if (inode->i_size == 0) {
+                EXIT;
+                return 1;
+        }
+
+        if (block < direct_blocks) {
+                /* No indirect blocks, no problem. */
+        } else if (block < indirect_blocks + direct_blocks) {
+                block++;
+        } else if (block < double_blocks + indirect_blocks + direct_blocks) {
+                block += 2;
+        } else if (((block - double_blocks - indirect_blocks - direct_blocks)
+                    >> (ptrs_bits * 2)) < ptrs) {
+                block += 3;
+        }
+
+        block *= (inode->i_sb->s_blocksize / 512);
+
+        CDEBUG(D_CACHE, "Need %ld blocks, have %ld.\n", block, inode->i_blocks);
+
+        if (block > inode->i_blocks) {
+                EXIT;
+                return 0;
+        }
+
+        EXIT;
+        return 1;
+}
+
+struct journal_ops presto_ext3_journal_ops = {
+        .tr_all_data     = presto_e3_has_all_data,
+        .tr_avail        = presto_e3_freespace,
+        .tr_start        =  presto_e3_trans_start,
+        .tr_commit       = presto_e3_trans_commit,
+        .tr_journal_data = presto_e3_journal_file_data,
+        .tr_ilookup      = presto_iget_ilookup
+};
+
+#endif /* CONFIG_EXT3_FS */
diff --git a/fs/intermezzo/journal_obdfs.c b/fs/intermezzo/journal_obdfs.c
new file mode 100644
index 00000000000000..7596c8c781bc28
--- /dev/null
+++ b/fs/intermezzo/journal_obdfs.c
@@ -0,0 +1,194 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ *  Copyright (C) 1998 Peter J. Braam <braam@clusterfs.com>
+ *  Copyright (C) 2000 Red Hat, Inc.
+ *  Copyright (C) 2000 Los Alamos National Laboratory
+ *  Copyright (C) 2000 TurboLinux, Inc.
+ *  Copyright (C) 2001 Mountain View Data, Inc.
+ *
+ *   This file is part of InterMezzo, http://www.inter-mezzo.org.
+ *
+ *   InterMezzo is free software; you can redistribute it and/or
+ *   modify it under the terms of version 2 of the GNU General Public
+ *   License as published by the Free Software Foundation.
+ *
+ *   InterMezzo is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with InterMezzo; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/types.h>
+#include <linux/param.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <asm/segment.h>
+#include <asm/uaccess.h>
+#include <linux/string.h>
+#ifdef CONFIG_OBDFS_FS
+#include /usr/src/obd/include/linux/obdfs.h
+#endif
+
+#include <linux/intermezzo_fs.h>
+#include <linux/intermezzo_psdev.h>
+
+#ifdef CONFIG_OBDFS_FS
+
+
+static unsigned long presto_obdfs_freespace(struct presto_file_set *fset,
+                                         struct super_block *sb)
+{
+        return 0x0fffff; 
+}
+
+/* start the filesystem journal operations */
+static void *presto_obdfs_trans_start(struct presto_file_set *fset, 
+                                   struct inode *inode, 
+                                   int op)
+{
+
+        return (void *) 1;
+}
+
+#if 0
+        int jblocks;
+        int trunc_blks, one_path_blks, extra_path_blks, 
+                extra_name_blks, lml_blks; 
+        __u32 avail_kmlblocks;
+
+        if ( presto_no_journal(fset) ||
+             strcmp(fset->fset_cache->cache_type, "ext3"))
+          {
+            CDEBUG(D_JOURNAL, "got cache_type \"%s\"\n",
+                   fset->fset_cache->cache_type);
+            return NULL;
+          }
+
+        avail_kmlblocks = inode->i_sb->u.ext3_sb.s_es->s_free_blocks_count;
+        
+        if ( avail_kmlblocks < 3 ) {
+                return ERR_PTR(-ENOSPC);
+        }
+        
+        if (  (op != PRESTO_OP_UNLINK && op != PRESTO_OP_RMDIR)
+              && avail_kmlblocks < 6 ) {
+                return ERR_PTR(-ENOSPC);
+        }            
+
+        /* Need journal space for:
+             at least three writes to KML (two one block writes, one a path) 
+             possibly a second name (unlink, rmdir)
+             possibly a second path (symlink, rename)
+             a one block write to the last rcvd file 
+        */
+
+        trunc_blks = EXT3_DATA_TRANS_BLOCKS + 1; 
+        one_path_blks = 4*EXT3_DATA_TRANS_BLOCKS + MAX_PATH_BLOCKS(inode) + 3;
+        lml_blks = 4*EXT3_DATA_TRANS_BLOCKS + MAX_PATH_BLOCKS(inode) + 2;
+        extra_path_blks = EXT3_DATA_TRANS_BLOCKS + MAX_PATH_BLOCKS(inode); 
+        extra_name_blks = EXT3_DATA_TRANS_BLOCKS + MAX_NAME_BLOCKS(inode); 
+
+        /* additional blocks appear for "two pathname" operations
+           and operations involving the LML records 
+        */
+        switch (op) {
+        case PRESTO_OP_TRUNC:
+                jblocks = one_path_blks + extra_name_blks + trunc_blks
+                        + EXT3_DELETE_TRANS_BLOCKS; 
+                break;
+        case PRESTO_OP_RELEASE:
+                /* 
+                jblocks = one_path_blks + lml_blks + 2*trunc_blks; 
+                */
+                jblocks = one_path_blks; 
+                break;
+        case PRESTO_OP_SETATTR:
+                jblocks = one_path_blks + trunc_blks + 1 ; 
+                break;
+        case PRESTO_OP_CREATE:
+                jblocks = one_path_blks + trunc_blks 
+                        + EXT3_DATA_TRANS_BLOCKS + 3; 
+                break;
+        case PRESTO_OP_LINK:
+                jblocks = one_path_blks + trunc_blks 
+                        + EXT3_DATA_TRANS_BLOCKS; 
+                break;
+        case PRESTO_OP_UNLINK:
+                jblocks = one_path_blks + extra_name_blks + trunc_blks
+                        + EXT3_DELETE_TRANS_BLOCKS; 
+                break;
+        case PRESTO_OP_SYMLINK:
+                jblocks = one_path_blks + extra_path_blks + trunc_blks
+                        + EXT3_DATA_TRANS_BLOCKS + 5; 
+                break;
+        case PRESTO_OP_MKDIR:
+                jblocks = one_path_blks + trunc_blks
+                        + EXT3_DATA_TRANS_BLOCKS + 4;
+                break;
+        case PRESTO_OP_RMDIR:
+                jblocks = one_path_blks + extra_name_blks + trunc_blks
+                        + EXT3_DELETE_TRANS_BLOCKS; 
+                break;
+        case PRESTO_OP_MKNOD:
+                jblocks = one_path_blks + trunc_blks + 
+                        EXT3_DATA_TRANS_BLOCKS + 3;
+                break;
+        case PRESTO_OP_RENAME:
+                jblocks = one_path_blks + extra_path_blks + trunc_blks + 
+                        2 * EXT3_DATA_TRANS_BLOCKS + 2;
+                break;
+        case PRESTO_OP_WRITE:
+                jblocks = one_path_blks; 
+                /*  add this when we can wrap our transaction with 
+                    that of ext3_file_write (ordered writes)
+                    +  EXT3_DATA_TRANS_BLOCKS;
+                */
+                break;
+        default:
+                CDEBUG(D_JOURNAL, "invalid operation %d for journal\n", op);
+                return NULL;
+        }
+
+        CDEBUG(D_JOURNAL, "creating journal handle (%d blocks)\n", jblocks);
+        return journal_start(EXT3_JOURNAL(inode), jblocks);
+}
+#endif
+
+void presto_obdfs_trans_commit(struct presto_file_set *fset, void *handle)
+{
+#if 0
+        if ( presto_no_journal(fset) || !handle)
+                return;
+
+        journal_stop(handle);
+#endif
+}
+
+void presto_obdfs_journal_file_data(struct inode *inode)
+{
+#ifdef EXT3_JOURNAL_DATA_FL
+        inode->u.ext3_i.i_flags |= EXT3_JOURNAL_DATA_FL;
+#else
+#warning You must have a facility to enable journaled writes for recovery!
+#endif
+}
+
+struct journal_ops presto_obdfs_journal_ops = {
+        .tr_avail        = presto_obdfs_freespace,
+        .tr_start        =  presto_obdfs_trans_start,
+        .tr_commit       = presto_obdfs_trans_commit,
+        .tr_journal_data = presto_obdfs_journal_file_data
+};
+
+#endif
diff --git a/fs/intermezzo/journal_reiserfs.c b/fs/intermezzo/journal_reiserfs.c
new file mode 100644
index 00000000000000..8bbfc9d9f3504c
--- /dev/null
+++ b/fs/intermezzo/journal_reiserfs.c
@@ -0,0 +1,142 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ *  Copyright (C) 1998 Peter J. Braam <braam@clusterfs.com>
+ *  Copyright (C) 2000 Red Hat, Inc.
+ *  Copyright (C) 2000 Los Alamos National Laboratory
+ *  Copyright (C) 2000 TurboLinux, Inc.
+ *  Copyright (C) 2001 Mountain View Data, Inc.
+ *
+ *   This file is part of InterMezzo, http://www.inter-mezzo.org.
+ *
+ *   InterMezzo is free software; you can redistribute it and/or
+ *   modify it under the terms of version 2 of the GNU General Public
+ *   License as published by the Free Software Foundation.
+ *
+ *   InterMezzo is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with InterMezzo; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/types.h>
+#include <linux/param.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/smp_lock.h>
+#include <linux/locks.h>
+#include <asm/segment.h>
+#include <asm/uaccess.h>
+#include <linux/string.h>
+#if 0
+#if defined(CONFIG_REISERFS_FS) || defined(CONFIG_REISERFS_FS_MODULE)
+#include <linux/reiserfs_fs.h>
+#include <linux/reiserfs_fs_sb.h>
+#include <linux/reiserfs_fs_i.h>
+#endif
+
+#include <linux/intermezzo_fs.h>
+#include <linux/intermezzo_psdev.h>
+
+#if defined(CONFIG_REISERFS_FS) || defined(CONFIG_REISERFS_FS_MODULE)
+
+
+static loff_t presto_reiserfs_freespace(struct presto_cache *cache,
+                                         struct super_block *sb)
+{
+        struct reiserfs_super_block * rs = SB_DISK_SUPER_BLOCK (sb);
+	loff_t avail;
+
+        avail =   le32_to_cpu(rs->s_free_blocks) * 
+		le16_to_cpu(rs->s_blocksize);
+        return avail; 
+}
+
+/* start the filesystem journal operations */
+static void *presto_reiserfs_trans_start(struct presto_file_set *fset, 
+                                   struct inode *inode, 
+                                   int op)
+{
+	int jblocks;
+        __u32 avail_kmlblocks;
+	struct reiserfs_transaction_handle *th ;
+
+	PRESTO_ALLOC(th, sizeof(*th));
+	if (!th) { 
+		CERROR("presto: No memory for trans handle\n");
+		return NULL;
+	}
+
+        avail_kmlblocks = presto_reiserfs_freespace(fset->fset_cache, 
+						    inode->i_sb);
+        if ( presto_no_journal(fset) ||
+             strcmp(fset->fset_cache->cache_type, "reiserfs"))
+		{
+			CDEBUG(D_JOURNAL, "got cache_type \"%s\"\n",
+			       fset->fset_cache->cache_type);
+			return NULL;
+		}
+
+        if ( avail_kmlblocks < 3 ) {
+                return ERR_PTR(-ENOSPC);
+        }
+        
+        if (  (op != PRESTO_OP_UNLINK && op != PRESTO_OP_RMDIR)
+              && avail_kmlblocks < 6 ) {
+                return ERR_PTR(-ENOSPC);
+        }            
+
+	jblocks = 3 + JOURNAL_PER_BALANCE_CNT * 4;
+        CDEBUG(D_JOURNAL, "creating journal handle (%d blocks)\n", jblocks);
+
+	lock_kernel();
+	journal_begin(th, inode->i_sb, jblocks);
+	unlock_kernel();
+	return th; 
+}
+
+static void presto_reiserfs_trans_commit(struct presto_file_set *fset,
+                                         void *handle)
+{
+	int jblocks;
+	jblocks = 3 + JOURNAL_PER_BALANCE_CNT * 4;
+	
+	lock_kernel();
+	journal_end(handle, fset->fset_cache->cache_sb, jblocks);
+	unlock_kernel();
+	PRESTO_FREE(handle, sizeof(struct reiserfs_transaction_handle));
+}
+
+static void presto_reiserfs_journal_file_data(struct inode *inode)
+{
+#ifdef EXT3_JOURNAL_DATA_FL
+        inode->u.ext3_i.i_flags |= EXT3_JOURNAL_DATA_FL;
+#else
+#warning You must have a facility to enable journaled writes for recovery!
+#endif
+}
+
+static int presto_reiserfs_has_all_data(struct inode *inode)
+{
+        BUG();
+        return 0;
+}
+
+struct journal_ops presto_reiserfs_journal_ops = {
+        .tr_all_data     = presto_reiserfs_has_all_data,
+        .tr_avail        = presto_reiserfs_freespace,
+        .tr_start        = presto_reiserfs_trans_start,
+        .tr_commit       = presto_reiserfs_trans_commit,
+        .tr_journal_data = presto_reiserfs_journal_file_data
+};
+
+#endif
+#endif
diff --git a/fs/intermezzo/journal_tmpfs.c b/fs/intermezzo/journal_tmpfs.c
new file mode 100644
index 00000000000000..d271ff12141f7f
--- /dev/null
+++ b/fs/intermezzo/journal_tmpfs.c
@@ -0,0 +1,109 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ *  Copyright (C) 1998 Peter J. Braam <braam@clusterfs.com>
+ *  Copyright (C) 2000 Red Hat, Inc.
+ *  Copyright (C) 2000 Los Alamos National Laboratory
+ *  Copyright (C) 2000 TurboLinux, Inc.
+ *  Copyright (C) 2001 Mountain View Data, Inc.
+ *  Copyright (C) 2001 Tacit Networks, Inc. <phil@off.net>
+ *
+ *   This file is part of InterMezzo, http://www.inter-mezzo.org.
+ *
+ *   InterMezzo is free software; you can redistribute it and/or
+ *   modify it under the terms of version 2 of the GNU General Public
+ *   License as published by the Free Software Foundation.
+ *
+ *   InterMezzo is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with InterMezzo; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/types.h>
+#include <linux/param.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <asm/segment.h>
+#include <asm/uaccess.h>
+#include <linux/string.h>
+#include <linux/smp_lock.h>
+#if defined(CONFIG_TMPFS)
+#include <linux/jbd.h>
+#if defined(CONFIG_EXT3)
+#include <linux/ext3_fs.h>
+#include <linux/ext3_jbd.h>
+#endif
+#endif
+
+#include <linux/intermezzo_fs.h>
+#include <linux/intermezzo_psdev.h>
+
+#if defined(CONFIG_TMPFS)
+
+/* space requirements: 
+   presto_do_truncate: 
+        used to truncate the KML forward to next fset->chunksize boundary
+          - zero partial block
+          - update inode
+   presto_write_record: 
+        write header (< one block) 
+        write one path (< MAX_PATHLEN) 
+        possibly write another path (< MAX_PATHLEN)
+        write suffix (< one block) 
+   presto_update_last_rcvd
+        write one block
+*/
+
+static loff_t presto_tmpfs_freespace(struct presto_cache *cache,
+                                         struct super_block *sb)
+{
+        return (1<<30);
+}
+
+/* start the filesystem journal operations */
+static void *presto_tmpfs_trans_start(struct presto_file_set *fset, 
+                                   struct inode *inode, 
+                                   int op)
+{
+        return (void *)1; 
+}
+
+static void presto_tmpfs_trans_commit(struct presto_file_set *fset, void *handle)
+{
+        return;
+}
+
+static void presto_tmpfs_journal_file_data(struct inode *inode)
+{
+        return; 
+}
+
+/* The logic here is a slightly modified version of ext3/inode.c:block_to_path
+ */
+static int presto_tmpfs_has_all_data(struct inode *inode)
+{
+        return 0;
+}
+
+struct journal_ops presto_tmpfs_journal_ops = {
+        tr_all_data: presto_tmpfs_has_all_data,
+        tr_avail: presto_tmpfs_freespace,
+        tr_start:  presto_tmpfs_trans_start,
+        tr_commit: presto_tmpfs_trans_commit,
+        tr_journal_data: presto_tmpfs_journal_file_data,
+        tr_ilookup: presto_tmpfs_ilookup,
+        tr_add_ilookup: presto_add_ilookup_dentry
+};
+
+#endif /* CONFIG_EXT3_FS */
diff --git a/fs/intermezzo/journal_xfs.c b/fs/intermezzo/journal_xfs.c
new file mode 100644
index 00000000000000..68d354a814a136
--- /dev/null
+++ b/fs/intermezzo/journal_xfs.c
@@ -0,0 +1,162 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ *  Copyright (C) 1998 Peter J. Braam <braam@clusterfs.com>
+ *
+ *   This file is part of InterMezzo, http://www.inter-mezzo.org.
+ *
+ *   InterMezzo is free software; you can redistribute it and/or
+ *   modify it under the terms of version 2 of the GNU General Public
+ *   License as published by the Free Software Foundation.
+ *
+ *   InterMezzo is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with InterMezzo; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <asm/segment.h>
+#include <asm/uaccess.h>
+#include <linux/string.h>
+#if 0
+/* XFS Support not there yet */
+#ifdef CONFIG_FS_XFS
+#include <linux/xfs_fs.h>
+#endif
+#include <linux/intermezzo_fs.h>
+#include <linux/intermezzo_psdev.h>
+#include <linux/intermezzo_journal.h>
+
+#if 0
+
+/* XFS has journalling, but these functions do nothing yet... */
+
+static unsigned long presto_xfs_freespace(struct presto_file_set *fset,
+                                         struct super_block *sb)
+{
+
+#if 0
+        vfs_t *vfsp = LINVFS_GET_VFS(sb);
+        struct statvfs_t stat; 
+        bhv_desc_t *bdp;
+        unsigned long avail; 
+        int rc;
+
+        VFS_STATVFS(vfsp, &stat, NULL, rc);
+        avail = statp.f_bfree;
+
+        return sbp->sb_fdblocks;
+#endif
+        return 0x0fffffff;
+}
+
+
+/* start the filesystem journal operations */
+static void *
+presto_xfs_trans_start(struct presto_file_set *fset,
+		       struct inode *inode, int op)
+{
+	int xfs_op;
+	/* do a free blocks check as in journal_ext3? does anything protect
+	 * the space in that case or can it disappear out from under us
+	 * anyway? */
+	
+/* copied from xfs_trans.h, skipping header maze for now */
+#define XFS_TRANS_SETATTR_NOT_SIZE      1
+#define XFS_TRANS_SETATTR_SIZE          2
+#define XFS_TRANS_INACTIVE              3
+#define XFS_TRANS_CREATE                4
+#define XFS_TRANS_CREATE_TRUNC          5
+#define XFS_TRANS_TRUNCATE_FILE         6
+#define XFS_TRANS_REMOVE                7
+#define XFS_TRANS_LINK                  8
+#define XFS_TRANS_RENAME                9
+#define XFS_TRANS_MKDIR                 10
+#define XFS_TRANS_RMDIR                 11
+#define XFS_TRANS_SYMLINK               12
+
+	/* map the op onto the values for XFS so it can do reservation. if
+	 * we don't have enough info to differentiate between e.g. setattr
+	 * with or without size, what do we do? will it adjust? */
+	switch (op) {
+	case PRESTO_OP_SETATTR:
+		/* or XFS_TRANS_SETATTR_NOT_SIZE? */
+	        xfs_op = XFS_TRANS_SETATTR_SIZE;
+		break;
+	case PRESTO_OP_CREATE:
+		/* or CREATE_TRUNC? */
+		xfs_op = XFS_TRANS_CREATE;
+		break;
+	case PRESTO_OP_LINK:
+		xfs_op = XFS_TRANS_LINK;
+		break;
+	case PRESTO_OP_UNLINK:
+		xfs_op = XFS_TRANS_REMOVE;
+		break;
+	case PRESTO_OP_SYMLINK:
+		xfs_op = XFS_TRANS_SYMLINK;
+		break;
+	case PRESTO_OP_MKDIR:
+		xfs_op = XFS_TRANS_MKDIR;
+		break;
+	case PRESTO_OP_RMDIR:
+		xfs_op = XFS_TRANS_RMDIR;
+		break;
+	case PRESTO_OP_MKNOD:
+		/* XXX can't find an analog for mknod? */
+		xfs_op = XFS_TRANS_CREATE;
+		break;
+	case PRESTO_OP_RENAME:
+		xfs_op = XFS_TRANS_RENAME;
+		break;
+	default:
+		CDEBUG(D_JOURNAL, "invalid operation %d for journal\n", op);
+		return NULL;
+	}
+
+	return xfs_trans_start(inode, xfs_op);
+}
+
+static void presto_xfs_trans_commit(struct presto_file_set *fset, void *handle)
+{
+	/* assert (handle == current->j_handle) */
+	xfs_trans_stop(handle);
+}
+
+static void presto_xfs_journal_file_data(struct inode *inode)
+{
+        return; 
+}
+
+static int presto_xfs_has_all_data(struct inode *inode)
+{
+        BUG();
+        return 0;
+}
+
+struct journal_ops presto_xfs_journal_ops = {
+        .tr_all_data     = presto_xfs_has_all_data,
+        .tr_avail        = presto_xfs_freespace,
+        .tr_start        = presto_xfs_trans_start,
+        .tr_commit       = presto_xfs_trans_commit,
+        .tr_journal_data = presto_xfs_journal_file_data
+};
+
+#endif
+
+
+#endif /* CONFIG_XFS_FS */
+
diff --git a/fs/intermezzo/kml_reint.c b/fs/intermezzo/kml_reint.c
new file mode 100644
index 00000000000000..c7a36b32ad0cd7
--- /dev/null
+++ b/fs/intermezzo/kml_reint.c
@@ -0,0 +1,630 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ *  Copyright (C) 2001 Cluster File Systems, Inc. <braam@clusterfs.com>
+ *
+ *   This file is part of InterMezzo, http://www.inter-mezzo.org.
+ *
+ *   InterMezzo is free software; you can redistribute it and/or
+ *   modify it under the terms of version 2 of the GNU General Public
+ *   License as published by the Free Software Foundation.
+ *
+ *   InterMezzo is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with InterMezzo; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Reintegration of KML records
+ *
+ */
+
+#define __NO_VERSION__
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/mm.h>
+#include <asm/uaccess.h>
+#include <asm/pgtable.h>
+#include <asm/mmu_context.h>
+#include <linux/intermezzo_fs.h>
+#include <linux/intermezzo_psdev.h>
+
+static void kmlreint_pre_secure(struct kml_rec *rec, struct file *dir,
+                                struct run_ctxt *saved)
+{
+        struct run_ctxt ctxt; 
+        struct presto_dentry_data *dd = presto_d2d(dir->f_dentry);
+        int i;
+
+        ctxt.fsuid = rec->prefix.hdr->fsuid;
+        ctxt.fsgid = rec->prefix.hdr->fsgid;
+        ctxt.fs = KERNEL_DS; 
+        ctxt.pwd = dd->dd_fset->fset_dentry;
+        ctxt.pwdmnt = dd->dd_fset->fset_mnt;
+
+        ctxt.root = ctxt.pwd;
+        ctxt.rootmnt = ctxt.pwdmnt;
+        if (rec->prefix.hdr->ngroups > 0) {
+                ctxt.ngroups = rec->prefix.hdr->ngroups;
+                for (i = 0; i< ctxt.ngroups; i++) 
+                        ctxt.groups[i] = rec->prefix.groups[i];
+        } else
+                ctxt.ngroups = 0;
+
+        push_ctxt(saved, &ctxt);
+}
+
+
+/* Append two strings in a less-retarded fashion. */
+static char * path_join(char *p1, int p1len, char *p2, int p2len)
+{
+        int size = p1len + p2len + 2; /* possibly one extra /, one NULL */
+        char *path;
+
+        path = kmalloc(size, GFP_KERNEL);
+        if (path == NULL)
+                return NULL;
+
+        memcpy(path, p1, p1len);
+        if (path[p1len - 1] != '/') {
+                path[p1len] = '/';
+                p1len++;
+        }
+        memcpy(path + p1len, p2, p2len);
+        path[p1len + p2len] = '\0';
+
+        return path;
+}
+
+static inline int kml_recno_equal(struct kml_rec *rec,
+                                  struct presto_file_set *fset)
+{
+        return (rec->suffix->recno == fset->fset_lento_recno + 1);
+}
+
+static inline int version_equal(struct presto_version *a, struct inode *inode)
+{
+        if (a == NULL)
+                return 1;
+
+        if (inode == NULL) {
+                CERROR("InterMezzo: NULL inode in version_equal()\n");
+                return 0;
+        }
+
+        if (inode->i_mtime == a->pv_mtime &&
+            (S_ISDIR(inode->i_mode) || inode->i_size == a->pv_size))
+                return 1;
+
+        return 0;
+}
+
+static int reint_close(struct kml_rec *rec, struct file *file,
+                       struct lento_vfs_context *given_info)
+{
+        struct run_ctxt saved_ctxt;
+        int error;
+        struct presto_file_set *fset;
+        struct lento_vfs_context info; 
+        ENTRY;
+
+        memcpy(&info, given_info, sizeof(*given_info));
+
+
+        CDEBUG (D_KML, "=====REINT_CLOSE::%s\n", rec->path);
+
+        fset = presto_fset(file->f_dentry);
+        if (fset->fset_flags & FSET_DATA_ON_DEMAND) {
+                struct iattr iattr;
+
+                iattr.ia_valid = ATTR_CTIME | ATTR_MTIME | ATTR_SIZE;
+                iattr.ia_mtime = (time_t)rec->new_objectv->pv_mtime;
+                iattr.ia_ctime = (time_t)rec->new_objectv->pv_ctime;
+                iattr.ia_size = (time_t)rec->new_objectv->pv_size;
+
+                /* no kml record, but update last rcvd */
+                /* save fileid in dentry for later backfetch */
+                info.flags |= LENTO_FL_EXPECT | LENTO_FL_SET_DDFILEID;
+                info.remote_ino = rec->ino;
+                info.remote_generation = rec->generation;
+                info.flags &= ~LENTO_FL_KML;
+                kmlreint_pre_secure(rec, file, &saved_ctxt);
+                error = lento_setattr(rec->path, &iattr, &info);
+                pop_ctxt(&saved_ctxt);
+
+                presto_d2d(file->f_dentry)->dd_flags &= ~PRESTO_DATA;
+        } else {
+                int minor = presto_f2m(fset);
+
+                info.updated_time = rec->new_objectv->pv_mtime;
+                memcpy(&info.remote_version, rec->old_objectv, 
+                       sizeof(*rec->old_objectv));
+                info.remote_ino = rec->ino;
+                info.remote_generation = rec->generation;
+                error = izo_upc_backfetch(minor, rec->path, fset->fset_name,
+                                          &info);
+                if (error) {
+                        CERROR("backfetch error %d\n", error);
+                        /* if file doesn't exist anymore,  then ignore the CLOSE
+                         * and just update the last_rcvd.
+                         */
+                        if (error == ENOENT) {
+                                CDEBUG(D_KML, "manually updating remote offset uuid %s"
+                                       "recno %d offset %Lu\n", info.uuid, info.recno, info.kml_offset);
+                                error = izo_rcvd_upd_remote(fset, info.uuid, info.recno, info.kml_offset);
+                                if(error)
+                                        CERROR("izo_rcvd_upd_remote error %d\n", error);
+
+                        } 
+                }
+                        
+                /* propagate error to avoid further reint */
+        }
+
+        EXIT;
+        return error;
+}
+
+static int reint_create(struct kml_rec *rec, struct file *dir,
+                        struct lento_vfs_context *info)
+{
+        struct run_ctxt saved_ctxt;
+        int     error;        ENTRY;
+
+        CDEBUG (D_KML, "=====REINT_CREATE::%s\n", rec->path);
+        info->updated_time = rec->new_objectv->pv_ctime;
+        kmlreint_pre_secure(rec, dir, &saved_ctxt);
+        error = lento_create(rec->path, rec->mode, info);
+        pop_ctxt(&saved_ctxt); 
+
+        EXIT;
+        return error;
+}
+
+static int reint_link(struct kml_rec *rec, struct file *dir,
+                      struct lento_vfs_context *info)
+{
+        struct run_ctxt saved_ctxt;
+        int     error;
+
+        ENTRY;
+
+        CDEBUG (D_KML, "=====REINT_LINK::%s -> %s\n", rec->path, rec->target);
+        info->updated_time = rec->new_objectv->pv_mtime;
+        kmlreint_pre_secure(rec, dir, &saved_ctxt);
+        error = lento_link(rec->path, rec->target, info);
+        pop_ctxt(&saved_ctxt); 
+
+        EXIT;
+        return error;
+}
+
+static int reint_mkdir(struct kml_rec *rec, struct file *dir,
+                       struct lento_vfs_context *info)
+{
+        struct run_ctxt saved_ctxt;
+        int     error;
+
+        ENTRY;
+
+        CDEBUG (D_KML, "=====REINT_MKDIR::%s\n", rec->path);
+        info->updated_time = rec->new_objectv->pv_ctime;
+        kmlreint_pre_secure(rec, dir, &saved_ctxt);
+        error = lento_mkdir(rec->path, rec->mode, info);
+        pop_ctxt(&saved_ctxt); 
+
+        EXIT;
+        return error;
+}
+
+static int reint_mknod(struct kml_rec *rec, struct file *dir,
+                       struct lento_vfs_context *info)
+{
+        struct run_ctxt saved_ctxt;
+        int     error, dev;
+
+        ENTRY;
+
+        CDEBUG (D_KML, "=====REINT_MKNOD::%s\n", rec->path);
+        info->updated_time = rec->new_objectv->pv_ctime;
+        kmlreint_pre_secure(rec, dir, &saved_ctxt);
+
+        dev = rec->rdev ?: MKDEV(rec->major, rec->minor);
+
+        error = lento_mknod(rec->path, rec->mode, dev, info);
+        pop_ctxt(&saved_ctxt); 
+
+        EXIT;
+        return error;
+}
+
+
+static int reint_noop(struct kml_rec *rec, struct file *dir,
+                      struct lento_vfs_context *info)
+{
+        return 0;
+}
+
+static int reint_rename(struct kml_rec *rec, struct file *dir,
+                        struct lento_vfs_context *info)
+{
+        struct run_ctxt saved_ctxt;
+        int     error;
+
+        ENTRY;
+
+        CDEBUG (D_KML, "=====REINT_RENAME::%s -> %s\n", rec->path, rec->target);
+        info->updated_time = rec->new_objectv->pv_mtime;
+        kmlreint_pre_secure(rec, dir, &saved_ctxt);
+        error = lento_rename(rec->path, rec->target, info);
+        pop_ctxt(&saved_ctxt); 
+
+        EXIT;
+        return error;
+}
+
+static int reint_rmdir(struct kml_rec *rec, struct file *dir,
+                       struct lento_vfs_context *info)
+{
+        struct run_ctxt saved_ctxt;
+        int     error;
+        char *path;
+
+        ENTRY;
+
+        path = path_join(rec->path, rec->pathlen - 1, rec->target, rec->targetlen);
+        if (path == NULL) {
+                EXIT;
+                return -ENOMEM;
+        }
+
+        CDEBUG (D_KML, "=====REINT_RMDIR::%s\n", path);
+        info->updated_time = rec->new_parentv->pv_mtime;
+        kmlreint_pre_secure(rec, dir, &saved_ctxt);
+        error = lento_rmdir(path, info);
+        pop_ctxt(&saved_ctxt); 
+
+        kfree(path);
+        EXIT;
+        return error;
+}
+
+static int reint_setattr(struct kml_rec *rec, struct file *dir,
+                         struct lento_vfs_context *info)
+{
+        struct run_ctxt saved_ctxt;
+        struct iattr iattr;
+        int     error;
+
+        ENTRY;
+
+        iattr.ia_valid = rec->valid;
+        iattr.ia_mode  = (umode_t)rec->mode;
+        iattr.ia_uid   = (uid_t)rec->uid;
+        iattr.ia_gid   = (gid_t)rec->gid;
+        iattr.ia_size  = (off_t)rec->size;
+        iattr.ia_ctime = (time_t)rec->ctime;
+        iattr.ia_mtime = (time_t)rec->mtime;
+        iattr.ia_atime = iattr.ia_mtime; /* We don't track atimes. */
+        iattr.ia_attr_flags = rec->flags;
+
+        CDEBUG (D_KML, "=====REINT_SETATTR::%s (%d)\n", rec->path, rec->valid);
+        kmlreint_pre_secure(rec, dir, &saved_ctxt);
+        error = lento_setattr(rec->path, &iattr, info);
+        pop_ctxt(&saved_ctxt); 
+
+        EXIT;
+        return error;
+}
+
+static int reint_symlink(struct kml_rec *rec, struct file *dir,
+                         struct lento_vfs_context *info)
+{
+        struct run_ctxt saved_ctxt;
+        int     error;
+
+        ENTRY;
+
+        CDEBUG (D_KML, "=====REINT_SYMLINK::%s -> %s\n", rec->path, rec->target);
+        info->updated_time = rec->new_objectv->pv_ctime;
+        kmlreint_pre_secure(rec, dir, &saved_ctxt);
+        error = lento_symlink(rec->target, rec->path, info);
+        pop_ctxt(&saved_ctxt); 
+
+        EXIT;
+        return error;
+}
+
+static int reint_unlink(struct kml_rec *rec, struct file *dir,
+                        struct lento_vfs_context *info)
+{
+        struct run_ctxt saved_ctxt;
+        int     error;
+        char *path;
+
+        ENTRY;
+
+        path = path_join(rec->path, rec->pathlen - 1, rec->target, rec->targetlen);
+        if (path == NULL) {
+                EXIT;
+                return -ENOMEM;
+        }
+
+        CDEBUG (D_KML, "=====REINT_UNLINK::%s\n", path);
+        info->updated_time = rec->new_parentv->pv_mtime;
+        kmlreint_pre_secure(rec, dir, &saved_ctxt);
+        error = lento_unlink(path, info);
+        pop_ctxt(&saved_ctxt); 
+
+        kfree(path);
+        EXIT;
+        return error;
+}
+
+static int branch_reint_rename(struct presto_file_set *fset, struct kml_rec *rec, 
+                   struct file *dir, struct lento_vfs_context *info,
+                   char * kml_data, __u64 kml_size)
+{
+        int     error;
+
+        ENTRY;
+
+        error = reint_rename(rec, dir, info);
+        if (error == -ENOENT) {
+                /* normal reint failed because path was not found */
+                struct rec_info rec;
+                
+                CDEBUG(D_KML, "saving branch rename kml\n");
+                rec.is_kml = 1;
+                rec.size = kml_size;
+                error = presto_log(fset, &rec, kml_data, kml_size,
+                           NULL, 0, NULL, 0,  NULL, 0);
+                if (error == 0)
+                        error = presto_write_last_rcvd(&rec, fset, info);
+        }
+
+        EXIT;
+        return error;
+}
+
+int branch_reinter(struct presto_file_set *fset, struct kml_rec *rec, 
+                   struct file *dir, struct lento_vfs_context *info,
+                   char * kml_data, __u64 kml_size)
+{
+        int error = 0;
+        int op = rec->prefix.hdr->opcode;
+
+        if (op == KML_OPCODE_CLOSE) {
+                /* regular close and backfetch */
+                error = reint_close(rec, dir, info);
+        } else if  (op == KML_OPCODE_RENAME) {
+                /* rename only if name already exists  */
+                error = branch_reint_rename(fset, rec, dir, info,
+                                            kml_data, kml_size);
+        } else {
+                /* just rewrite kml into branch/kml and update last_rcvd */
+                struct rec_info rec;
+                
+                CDEBUG(D_KML, "Saving branch kml\n");
+                rec.is_kml = 1;
+                rec.size = kml_size;
+                error = presto_log(fset, &rec, kml_data, kml_size,
+                           NULL, 0, NULL, 0,  NULL, 0);
+                if (error == 0)
+                        error = presto_write_last_rcvd(&rec, fset, info);
+        }
+                
+        return error;
+}
+
+typedef int (*reinter_t)(struct kml_rec *rec, struct file *basedir,
+                         struct lento_vfs_context *info);
+
+static reinter_t presto_reinters[KML_OPCODE_NUM] =
+{
+        [KML_OPCODE_CLOSE] = reint_close,
+        [KML_OPCODE_CREATE] = reint_create,
+        [KML_OPCODE_LINK] = reint_link,
+        [KML_OPCODE_MKDIR] = reint_mkdir,
+        [KML_OPCODE_MKNOD] = reint_mknod,
+        [KML_OPCODE_NOOP] = reint_noop,
+        [KML_OPCODE_RENAME] = reint_rename,
+        [KML_OPCODE_RMDIR] = reint_rmdir,
+        [KML_OPCODE_SETATTR] = reint_setattr,
+        [KML_OPCODE_SYMLINK] = reint_symlink,
+        [KML_OPCODE_UNLINK] = reint_unlink,
+};
+
+static inline reinter_t get_reinter(int op)
+{
+        if (op < 0 || op >= sizeof(presto_reinters) / sizeof(reinter_t)) 
+                return NULL; 
+        else 
+                return  presto_reinters[op];
+}
+
+int kml_reint_rec(struct file *dir, struct izo_ioctl_data *data)
+{
+        char *ptr;
+        char *end;
+        struct kml_rec rec;
+        int error = 0;
+        struct lento_vfs_context info;
+        struct presto_cache *cache;
+        struct presto_file_set *fset;
+        struct presto_dentry_data *dd = presto_d2d(dir->f_dentry);
+        int op;
+        reinter_t reinter;
+
+        struct izo_rcvd_rec lr_rec;
+        int off;
+
+        ENTRY;
+
+        error = presto_prep(dir->f_dentry, &cache, &fset);
+        if ( error  ) {
+                CERROR("intermezzo: Reintegration on invalid file\n");
+                return error;
+        }
+
+        if (!dd || !dd->dd_fset || dd->dd_fset->fset_dentry != dir->f_dentry) { 
+                CERROR("intermezzo: reintegration on non-fset root (ino %ld)\n",
+                       dir->f_dentry->d_inode->i_ino);
+                    
+                return -EINVAL;
+        }
+
+        if (data->ioc_plen1 > 64 * 1024) {
+                EXIT;
+                return -ENOSPC;
+        }
+
+        ptr = fset->fset_reint_buf;
+        end = ptr + data->ioc_plen1;
+
+        if (copy_from_user(ptr, data->ioc_pbuf1, data->ioc_plen1)) { 
+                EXIT;
+                error = -EFAULT;
+                goto out;
+        }
+
+        error = kml_unpack(&rec, &ptr, end);
+        if (error) { 
+                EXIT;
+                error = -EFAULT;
+                goto out;
+        }
+
+        off = izo_rcvd_get(&lr_rec, fset, data->ioc_uuid);
+        if (off < 0) {
+                CERROR("No last_rcvd record, setting to 0\n");
+                memset(&lr_rec, 0, sizeof(lr_rec));
+        }
+ 
+        data->ioc_kmlsize = ptr - fset->fset_reint_buf;
+
+        if (rec.suffix->recno != lr_rec.lr_remote_recno + 1) {
+                CERROR("KML record number %Lu expected, not %d\n",
+                       lr_rec.lr_remote_recno + 1,
+                       rec.suffix->recno);
+
+#if 0
+                if (!version_check(&rec, dd->dd_fset, &info)) {
+                        /* FIXME: do an upcall to resolve conflicts */
+                        CERROR("intermezzo: would be a conflict!\n");
+                        error = -EINVAL;
+                        EXIT;
+                        goto out;
+                }
+#endif
+        }
+
+        op = rec.prefix.hdr->opcode;
+
+        reinter = get_reinter(op);
+        if (!reinter) { 
+                CERROR("%s: Unrecognized KML opcode %d\n", __FUNCTION__, op);
+                error = -EINVAL;
+                EXIT;
+                goto out;
+        }
+
+        info.kml_offset = data->ioc_offset + data->ioc_kmlsize;
+        info.recno = rec.suffix->recno;
+        info.flags = LENTO_FL_EXPECT;
+        if (data->ioc_flags)
+                info.flags |= LENTO_FL_KML;
+
+        memcpy(info.uuid, data->ioc_uuid, sizeof(info.uuid));
+
+        if (fset->fset_flags & FSET_IS_BRANCH && data->ioc_flags)
+                error = branch_reinter(fset, &rec, dir, &info, fset->fset_reint_buf,
+                                       data->ioc_kmlsize);
+        else 
+                error = reinter(&rec, dir, &info);
+ out: 
+        EXIT;
+        return error;
+}
+
+int izo_get_fileid(struct file *dir, struct izo_ioctl_data *data)
+{
+        char *buf = NULL; 
+        char *ptr;
+        char *end;
+        struct kml_rec rec;
+        struct file *file;
+        struct presto_cache *cache;
+        struct presto_file_set *fset;
+        struct presto_dentry_data *dd = presto_d2d(dir->f_dentry);
+        struct run_ctxt saved_ctxt;
+        int     error;
+
+        ENTRY;
+
+        error = presto_prep(dir->f_dentry, &cache, &fset);
+        if ( error  ) {
+                CERROR("intermezzo: Reintegration on invalid file\n");
+                return error;
+        }
+
+        if (!dd || !dd->dd_fset || dd->dd_fset->fset_dentry != dir->f_dentry) { 
+                CERROR("intermezzo: reintegration on non-fset root (ino %ld)\n",
+                       dir->f_dentry->d_inode->i_ino);
+                    
+                return -EINVAL;
+        }
+
+
+        PRESTO_ALLOC(buf, data->ioc_plen1);
+        if (!buf) { 
+                EXIT;
+                return -ENOMEM;
+        }
+        ptr = buf;
+        end = buf + data->ioc_plen1;
+
+        if (copy_from_user(buf, data->ioc_pbuf1, data->ioc_plen1)) { 
+                EXIT;
+                PRESTO_FREE(buf, data->ioc_plen1);
+                return -EFAULT;
+        }
+
+        error = kml_unpack(&rec, &ptr, end);
+        if (error) { 
+                EXIT;
+                PRESTO_FREE(buf, data->ioc_plen1);
+                return -EFAULT;
+        }
+
+        kmlreint_pre_secure(&rec, dir, &saved_ctxt);
+
+        file = filp_open(rec.path, O_RDONLY, 0);
+        if (!file || IS_ERR(file)) { 
+                error = PTR_ERR(file);
+                goto out;
+        }
+        data->ioc_ino = file->f_dentry->d_inode->i_ino;
+        data->ioc_generation = file->f_dentry->d_inode->i_generation; 
+        filp_close(file, 0); 
+
+        CDEBUG(D_FILE, "%s ino %Lx, gen %Lx\n", rec.path, 
+               data->ioc_ino, data->ioc_generation);
+
+ out:
+        if (buf) 
+                PRESTO_FREE(buf, data->ioc_plen1);
+        pop_ctxt(&saved_ctxt); 
+        EXIT;
+        return error;
+}
+
+
diff --git a/fs/intermezzo/kml_unpack.c b/fs/intermezzo/kml_unpack.c
new file mode 100644
index 00000000000000..febd9b10936298
--- /dev/null
+++ b/fs/intermezzo/kml_unpack.c
@@ -0,0 +1,708 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ *  Copyright (C) 2001 Cluster File Systems, Inc. <braam@clusterfs.com>
+ *
+ *   This file is part of InterMezzo, http://www.inter-mezzo.org.
+ *
+ *   InterMezzo is free software; you can redistribute it and/or
+ *   modify it under the terms of version 2 of the GNU General Public
+ *   License as published by the Free Software Foundation.
+ *
+ *   InterMezzo is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with InterMezzo; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Unpacking of KML records
+ *
+ */
+
+#ifdef __KERNEL__
+#  include <linux/module.h>
+#  include <linux/errno.h>
+#  include <linux/kernel.h>
+#  include <linux/major.h>
+#  include <linux/sched.h>
+#  include <linux/lp.h>
+#  include <linux/slab.h>
+#  include <linux/ioport.h>
+#  include <linux/fcntl.h>
+#  include <linux/delay.h>
+#  include <linux/skbuff.h>
+#  include <linux/proc_fs.h>
+#  include <linux/vmalloc.h>
+#  include <linux/fs.h>
+#  include <linux/poll.h>
+#  include <linux/init.h>
+#  include <linux/list.h>
+#  include <linux/stat.h>
+#  include <asm/io.h>
+#  include <asm/segment.h>
+#  include <asm/system.h>
+#  include <asm/poll.h>
+#  include <asm/uaccess.h>
+#else
+#  include <time.h>
+#  include <stdio.h>
+#  include <string.h>
+#  include <stdlib.h>
+#  include <errno.h>
+#  include <sys/stat.h>
+#  include <glib.h>
+#endif
+
+#include <linux/intermezzo_lib.h>
+#include <linux/intermezzo_idl.h>
+#include <linux/intermezzo_fs.h>
+
+int kml_unpack_version(struct presto_version **ver, char **buf, char *end) 
+{
+	char *ptr = *buf;
+        struct presto_version *pv;
+
+	UNLOGP(*ver, struct presto_version, ptr, end);
+        pv = *ver;
+        pv->pv_mtime   = NTOH__u64(pv->pv_mtime);
+        pv->pv_ctime   = NTOH__u64(pv->pv_ctime);
+        pv->pv_size    = NTOH__u64(pv->pv_size);
+
+	*buf = ptr;
+
+        return 0;
+}
+
+
+static int kml_unpack_noop(struct kml_rec *rec, char **buf, char *end)
+{
+	return 0;
+}
+
+ 
+static int kml_unpack_get_fileid(struct kml_rec *rec, char **buf, char *end)
+{
+	char *ptr = *buf;
+
+	LUNLOGV(rec->pathlen, __u32, ptr, end);
+	UNLOGL(rec->path, char, rec->pathlen, ptr, end);
+
+	*buf = ptr;
+	return 0;
+}
+
+static int kml_unpack_create(struct kml_rec *rec, char **buf, char *end)
+{
+	char *ptr = *buf;
+
+	kml_unpack_version(&rec->old_parentv, &ptr, end);
+	kml_unpack_version(&rec->new_parentv, &ptr, end);
+	kml_unpack_version(&rec->new_objectv, &ptr, end);
+	LUNLOGV(rec->mode, __u32, ptr, end);
+	LUNLOGV(rec->uid, __u32, ptr, end);
+	LUNLOGV(rec->gid, __u32, ptr, end);
+	LUNLOGV(rec->pathlen, __u32, ptr, end);
+	UNLOGL(rec->path, char, rec->pathlen, ptr, end);
+
+	*buf = ptr;
+
+	return 0;
+}
+
+ 
+static int kml_unpack_mkdir(struct kml_rec *rec, char **buf, char *end)
+{
+	char *ptr = *buf;
+
+	kml_unpack_version(&rec->old_parentv, &ptr, end);
+	kml_unpack_version(&rec->new_parentv, &ptr, end);
+	kml_unpack_version(&rec->new_objectv, &ptr, end);
+	LUNLOGV(rec->mode, __u32, ptr, end);
+	LUNLOGV(rec->uid, __u32, ptr, end);
+	LUNLOGV(rec->gid, __u32, ptr, end);
+	LUNLOGV(rec->pathlen, __u32, ptr, end);
+	UNLOGL(rec->path, char, rec->pathlen, ptr, end);
+
+	*buf = ptr;
+
+	return 0;
+}
+
+
+static int kml_unpack_unlink(struct kml_rec *rec, char **buf, char *end)
+{
+	char *ptr = *buf;
+
+	kml_unpack_version(&rec->old_parentv, &ptr, end);
+	kml_unpack_version(&rec->new_parentv, &ptr, end);
+	kml_unpack_version(&rec->old_objectv, &ptr, end);
+        LUNLOGV(rec->old_mode, __u32, ptr, end);
+        LUNLOGV(rec->old_rdev, __u32, ptr, end);
+        LUNLOGV(rec->old_uid, __u64, ptr, end);
+        LUNLOGV(rec->old_gid, __u64, ptr, end);
+	LUNLOGV(rec->pathlen, __u32, ptr, end);
+	LUNLOGV(rec->targetlen, __u32, ptr, end);
+        LUNLOGV(rec->old_targetlen, __u32, ptr, end);
+	UNLOGL(rec->path, char, rec->pathlen, ptr, end);
+	UNLOGL(rec->target, char, rec->targetlen, ptr, end);
+        UNLOGL(rec->old_target, char, rec->old_targetlen, ptr, end);
+
+	*buf = ptr;
+
+	return 0;
+}
+
+
+static int kml_unpack_rmdir(struct kml_rec *rec, char **buf, char *end)
+{
+	char *ptr = *buf;
+
+	kml_unpack_version(&rec->old_parentv, &ptr, end);
+	kml_unpack_version(&rec->new_parentv, &ptr, end);
+	kml_unpack_version(&rec->old_objectv, &ptr, end);
+        LUNLOGV(rec->old_mode, __u32, ptr, end);
+        LUNLOGV(rec->old_rdev, __u32, ptr, end);
+        LUNLOGV(rec->old_uid, __u64, ptr, end);
+        LUNLOGV(rec->old_gid, __u64, ptr, end);
+	LUNLOGV(rec->pathlen, __u32, ptr, end);
+	LUNLOGV(rec->targetlen, __u32, ptr, end);
+	UNLOGL(rec->path, char, rec->pathlen, ptr, end);
+	UNLOGL(rec->target, char, rec->targetlen, ptr, end);
+
+	*buf = ptr;
+
+	return 0;
+}
+
+
+static int kml_unpack_close(struct kml_rec *rec, char **buf, char *end)
+{
+	char *ptr = *buf;
+
+	LUNLOGV(rec->mode, __u32, ptr, end);  // used for open_mode
+	LUNLOGV(rec->uid, __u32, ptr, end);   // used for open_uid
+	LUNLOGV(rec->gid, __u32, ptr, end);   // used for open_gid
+	kml_unpack_version(&rec->old_objectv, &ptr, end);
+	kml_unpack_version(&rec->new_objectv, &ptr, end);
+	LUNLOGV(rec->ino, __u64, ptr, end);
+	LUNLOGV(rec->generation, __u32, ptr, end);
+	LUNLOGV(rec->pathlen, __u32, ptr, end);
+	UNLOGL(rec->path, char, rec->pathlen, ptr, end);
+
+	*buf = ptr;
+
+	return 0;
+}
+
+
+static int kml_unpack_symlink(struct kml_rec *rec, char **buf, char *end)
+{
+	char *ptr = *buf;
+
+	kml_unpack_version(&rec->old_parentv, &ptr, end);
+	kml_unpack_version(&rec->new_parentv, &ptr, end);
+	kml_unpack_version(&rec->new_objectv, &ptr, end);
+	LUNLOGV(rec->uid, __u32, ptr, end);
+	LUNLOGV(rec->gid, __u32, ptr, end);
+	LUNLOGV(rec->pathlen, __u32, ptr, end);
+	LUNLOGV(rec->targetlen, __u32, ptr, end);
+	UNLOGL(rec->path, char, rec->pathlen, ptr, end);
+	UNLOGL(rec->target, char, rec->targetlen, ptr, end);
+
+	*buf = ptr;
+
+	return 0;
+}
+
+
+static int kml_unpack_rename(struct kml_rec *rec, char **buf, char *end)
+{
+	char *ptr = *buf;
+
+	kml_unpack_version(&rec->old_objectv, &ptr, end);
+	kml_unpack_version(&rec->new_objectv, &ptr, end);
+	kml_unpack_version(&rec->old_parentv, &ptr, end);
+	kml_unpack_version(&rec->new_parentv, &ptr, end);
+	LUNLOGV(rec->pathlen, __u32, ptr, end);
+	LUNLOGV(rec->targetlen, __u32, ptr, end);
+	UNLOGL(rec->path, char, rec->pathlen, ptr, end);
+	UNLOGL(rec->target, char, rec->targetlen, ptr, end);
+
+	*buf = ptr;
+
+	return 0;
+}
+
+
+static int kml_unpack_setattr(struct kml_rec *rec, char **buf, char *end)
+{
+	char *ptr = *buf;
+
+	kml_unpack_version(&rec->old_objectv, &ptr, end);
+	LUNLOGV(rec->valid, __u32, ptr, end);
+	LUNLOGV(rec->mode, __u32, ptr, end);
+	LUNLOGV(rec->uid, __u32, ptr, end);
+	LUNLOGV(rec->gid, __u32, ptr, end);
+	LUNLOGV(rec->size, __u64, ptr, end);
+	LUNLOGV(rec->mtime, __u64, ptr, end);
+	LUNLOGV(rec->ctime, __u64, ptr, end);
+	LUNLOGV(rec->flags, __u32, ptr, end);
+        LUNLOGV(rec->old_mode, __u32, ptr, end);
+        LUNLOGV(rec->old_rdev, __u32, ptr, end);
+        LUNLOGV(rec->old_uid, __u64, ptr, end);
+        LUNLOGV(rec->old_gid, __u64, ptr, end);
+	LUNLOGV(rec->pathlen, __u32, ptr, end);
+	UNLOGL(rec->path, char, rec->pathlen, ptr, end);
+	
+	*buf = ptr;
+
+	return 0;
+}
+
+
+static int kml_unpack_link(struct kml_rec *rec, char **buf, char *end)
+{
+	char *ptr = *buf;
+
+	kml_unpack_version(&rec->old_parentv, &ptr, end);
+	kml_unpack_version(&rec->new_parentv, &ptr, end);
+	kml_unpack_version(&rec->new_objectv, &ptr, end);
+	LUNLOGV(rec->pathlen, __u32, ptr, end);
+	LUNLOGV(rec->targetlen, __u32, ptr, end);
+	UNLOGL(rec->path, char, rec->pathlen, ptr, end);
+	UNLOGL(rec->target, char, rec->targetlen, ptr, end);
+
+	*buf = ptr;
+
+	return 0;
+}
+
+static int kml_unpack_mknod(struct kml_rec *rec, char **buf, char *end)
+{
+	char *ptr = *buf;
+
+	kml_unpack_version(&rec->old_parentv, &ptr, end);
+	kml_unpack_version(&rec->new_parentv, &ptr, end);
+	kml_unpack_version(&rec->new_objectv, &ptr, end);
+	LUNLOGV(rec->mode, __u32, ptr, end);
+	LUNLOGV(rec->uid, __u32, ptr, end);
+	LUNLOGV(rec->gid, __u32, ptr, end);
+	LUNLOGV(rec->major, __u32, ptr, end);
+	LUNLOGV(rec->minor, __u32, ptr, end);
+	LUNLOGV(rec->pathlen, __u32, ptr, end);
+	UNLOGL(rec->path, char, rec->pathlen, ptr, end);
+
+	*buf = ptr;
+
+	return 0;
+}
+
+
+static int kml_unpack_write(struct kml_rec *rec, char **buf, char *end)
+{
+	printf("NOT IMPLEMENTED");
+	return 0;
+}
+
+
+static int kml_unpack_release(struct kml_rec *rec, char **buf, char *end)
+{
+	printf("NOT IMPLEMENTED");
+	return 0;
+}
+
+
+static int kml_unpack_trunc(struct kml_rec *rec, char **buf, char *end)
+{
+	printf("NOT IMPLEMENTED");
+	return 0;
+}
+
+
+static int kml_unpack_setextattr(struct kml_rec *rec, char **buf, char *end)
+{
+	char *ptr = *buf;
+
+	kml_unpack_version(&rec->old_objectv, &ptr, end);
+	kml_unpack_version(&rec->new_objectv, &ptr, end);
+	LUNLOGV(rec->flags, __u32, ptr, end);
+	LUNLOGV(rec->mode, __u32, ptr, end);
+	LUNLOGV(rec->pathlen, __u32, ptr, end);
+	LUNLOGV(rec->namelen, __u32, ptr, end);
+	LUNLOGV(rec->targetlen, __u32, ptr, end);
+        UNLOGL(rec->path, char, rec->pathlen, ptr, end);
+	UNLOGL(rec->name, char, rec->namelen, ptr, end);
+	UNLOGL(rec->target, char, rec->targetlen, ptr, end);
+
+	*buf = ptr;
+
+	return 0;
+}
+
+
+static int kml_unpack_delextattr(struct kml_rec *rec, char **buf, char *end)
+{
+	char *ptr = *buf;
+
+	kml_unpack_version(&rec->old_objectv, &ptr, end);
+	kml_unpack_version(&rec->new_objectv, &ptr, end);
+	LUNLOGV(rec->flags, __u32, ptr, end);
+	LUNLOGV(rec->mode, __u32, ptr, end);
+	LUNLOGV(rec->pathlen, __u32, ptr, end);
+	LUNLOGV(rec->namelen, __u32, ptr, end);
+	LUNLOGV(rec->targetlen, __u32, ptr, end);
+	UNLOGL(rec->path, char, rec->pathlen, ptr, end);
+	UNLOGL(rec->name, char, rec->namelen, ptr, end);
+
+	*buf = ptr;
+
+	return 0;
+}
+
+static int kml_unpack_open(struct kml_rec *rec, char **buf, char *end)
+{
+	printf("NOT IMPLEMENTED");
+	return 0;
+}
+
+static int kml_unpack_kml_trunc(struct kml_rec *rec, char **buf, char *end)
+{
+
+	printf("NOT IMPLEMENTED");
+	return 0;
+}
+
+
+typedef int (*unpacker)(struct kml_rec *rec, char **buf, char *end);
+
+static unpacker unpackers[KML_OPCODE_NUM] = 
+{
+	[KML_OPCODE_NOOP] = kml_unpack_noop,
+	[KML_OPCODE_CREATE] = kml_unpack_create, 
+	[KML_OPCODE_MKDIR] = kml_unpack_mkdir,
+	[KML_OPCODE_UNLINK] = kml_unpack_unlink,
+	[KML_OPCODE_RMDIR] = kml_unpack_rmdir,
+	[KML_OPCODE_CLOSE] = kml_unpack_close,
+	[KML_OPCODE_SYMLINK] = kml_unpack_symlink,
+	[KML_OPCODE_RENAME] = kml_unpack_rename,
+	[KML_OPCODE_SETATTR] = kml_unpack_setattr,
+	[KML_OPCODE_LINK] = kml_unpack_link,
+	[KML_OPCODE_OPEN] = kml_unpack_open,
+	[KML_OPCODE_MKNOD] = kml_unpack_mknod,
+	[KML_OPCODE_WRITE] = kml_unpack_write,
+	[KML_OPCODE_RELEASE] = kml_unpack_release,
+	[KML_OPCODE_TRUNC] = kml_unpack_trunc,
+	[KML_OPCODE_SETEXTATTR] = kml_unpack_setextattr,
+	[KML_OPCODE_DELEXTATTR] = kml_unpack_delextattr,
+	[KML_OPCODE_KML_TRUNC] = kml_unpack_kml_trunc,
+	[KML_OPCODE_GET_FILEID] = kml_unpack_get_fileid
+};
+
+int kml_unpack_prefix(struct kml_rec *rec, char **buf, char *end) 
+{
+	char *ptr = *buf;
+        int n;
+
+        UNLOGP(rec->prefix.hdr, struct kml_prefix_hdr, ptr, end);
+        rec->prefix.hdr->len     = NTOH__u32(rec->prefix.hdr->len);
+        rec->prefix.hdr->version = NTOH__u32(rec->prefix.hdr->version);
+        rec->prefix.hdr->pid     = NTOH__u32(rec->prefix.hdr->pid);
+        rec->prefix.hdr->auid    = NTOH__u32(rec->prefix.hdr->auid);
+        rec->prefix.hdr->fsuid   = NTOH__u32(rec->prefix.hdr->fsuid);
+        rec->prefix.hdr->fsgid   = NTOH__u32(rec->prefix.hdr->fsgid);
+        rec->prefix.hdr->opcode  = NTOH__u32(rec->prefix.hdr->opcode);
+        rec->prefix.hdr->ngroups = NTOH__u32(rec->prefix.hdr->ngroups);
+
+	UNLOGL(rec->prefix.groups, __u32, rec->prefix.hdr->ngroups, ptr, end);
+        for (n = 0; n < rec->prefix.hdr->ngroups; n++) {
+                rec->prefix.groups[n] = NTOH__u32(rec->prefix.groups[n]);
+        }
+
+	*buf = ptr;
+
+        return 0;
+}
+
+int kml_unpack_suffix(struct kml_rec *rec, char **buf, char *end) 
+{
+	char *ptr = *buf;
+
+	UNLOGP(rec->suffix, struct kml_suffix, ptr, end);
+        rec->suffix->prevrec   = NTOH__u32(rec->suffix->prevrec);
+        rec->suffix->recno    = NTOH__u32(rec->suffix->recno);
+        rec->suffix->time     = NTOH__u32(rec->suffix->time);
+        rec->suffix->len      = NTOH__u32(rec->suffix->len);
+
+	*buf = ptr;
+
+        return 0;
+}
+
+int kml_unpack(struct kml_rec *rec, char **buf, char *end)
+{
+	char *ptr = *buf;
+	int err; 
+
+        if (((unsigned long)ptr % 4) != 0) {
+                printf("InterMezzo: %s: record misaligned.\n", __FUNCTION__);
+                return -EINVAL;
+        }
+
+        while (ptr < end) { 
+                __u32 *i = (__u32 *)ptr;
+                if (*i)
+                        break;
+                ptr += sizeof(*i);
+        }
+	*buf = ptr;
+
+	memset(rec, 0, sizeof(*rec));
+
+        err = kml_unpack_prefix(rec, &ptr, end);
+	if (err) {
+                printf("InterMezzo: %s: unpack_prefix failed: %d\n",
+                       __FUNCTION__, err);
+		return err;
+        }
+
+        if (rec->prefix.hdr->opcode < 0  ||
+            rec->prefix.hdr->opcode >= KML_OPCODE_NUM) {
+                printf("InterMezzo: %s: invalid opcode (%d)\n",
+                       __FUNCTION__, rec->prefix.hdr->opcode);
+		return -EINVAL;
+        }
+	err = unpackers[rec->prefix.hdr->opcode](rec, &ptr, end);
+	if (err) {
+                printf("InterMezzo: %s: unpacker failed: %d\n",
+                       __FUNCTION__, err);
+		return err;
+        }
+
+        err = kml_unpack_suffix(rec, &ptr, end);
+	if (err) {
+                printf("InterMezzo: %s: unpack_suffix failed: %d\n",
+                       __FUNCTION__, err);
+		return err;
+        }
+
+
+	if (rec->prefix.hdr->len != rec->suffix->len) {
+                printf("InterMezzo: %s: lengths don't match\n",
+                       __FUNCTION__);
+		return -EINVAL;
+        }
+        if ((rec->prefix.hdr->len % 4) != 0) {
+                printf("InterMezzo: %s: record length not a "
+                       "multiple of 4.\n", __FUNCTION__);
+                return -EINVAL;
+        }
+        if (ptr - *buf != rec->prefix.hdr->len) {
+                printf("InterMezzo: %s: unpacking error\n",
+                       __FUNCTION__);
+                return -EINVAL;
+        }
+        while (ptr < end) { 
+                __u32 *i = (__u32 *)ptr;
+                if (*i)
+                        break;
+                ptr += sizeof(*i);
+        }
+	*buf = ptr;
+	return 0;
+}
+
+
+#ifndef __KERNEL__
+#define STR(ptr) ((ptr))? (ptr) : ""
+
+#define OPNAME(n) [KML_OPCODE_##n] = #n
+static char *opnames[KML_OPCODE_NUM] = {
+	OPNAME(NOOP),
+	OPNAME(CREATE),
+	OPNAME(MKDIR), 
+	OPNAME(UNLINK),
+	OPNAME(RMDIR),
+	OPNAME(CLOSE),
+	OPNAME(SYMLINK),
+	OPNAME(RENAME),
+	OPNAME(SETATTR),
+	OPNAME(LINK),
+	OPNAME(OPEN),
+	OPNAME(MKNOD),
+	OPNAME(WRITE),
+	OPNAME(RELEASE),
+	OPNAME(TRUNC),
+	OPNAME(SETEXTATTR),
+	OPNAME(DELEXTATTR),
+	OPNAME(KML_TRUNC),
+	OPNAME(GET_FILEID)
+};
+#undef OPNAME
+
+static char *print_opname(int op)
+{
+	if (op < 0 || op >= sizeof (opnames) / sizeof (*opnames))
+		return NULL;
+	return opnames[op];
+}
+
+
+static char *print_time(__u64 i)
+{
+	char buf[128];
+	
+	memset(buf, 0, 128);
+
+#ifndef __KERNEL__
+	strftime(buf, 128, "%Y/%m/%d %H:%M:%S", gmtime((time_t *)&i));
+#else
+	sprintf(buf, "%Ld\n", i);
+#endif
+
+	return strdup(buf);
+}
+
+static char *print_version(struct presto_version *ver)
+{
+	char ver_buf[128];
+	char *mtime;
+	char *ctime;
+
+	if (!ver || ver->pv_ctime == 0) {
+		return strdup("");
+	} 
+	mtime = print_time(ver->pv_mtime);
+	ctime = print_time(ver->pv_ctime);
+	sprintf(ver_buf, "mtime %s, ctime %s, len %lld", 
+		mtime, ctime, ver->pv_size);
+	free(mtime);
+	free(ctime);
+	return strdup(ver_buf);
+}
+
+
+char *kml_print_rec(struct kml_rec *rec, int brief)
+{
+	char *str;
+	char *nov, *oov, *ntv, *otv, *npv, *opv;
+	char *rectime, *mtime, *ctime;
+
+        if (brief) {
+		str = g_strdup_printf(" %08d %7s %*s %*s", 
+                                      rec->suffix->recno,
+                                      print_opname (rec->prefix.hdr->opcode),
+                                      rec->pathlen, STR(rec->path),
+                                      rec->targetlen, STR(rec->target));
+                
+		return str;
+	}
+
+	rectime = print_time(rec->suffix->time);
+	mtime = print_time(rec->mtime);
+	ctime = print_time(rec->ctime);
+
+	nov = print_version(rec->new_objectv);
+	oov = print_version(rec->old_objectv);
+	ntv = print_version(rec->new_targetv);
+	otv = print_version(rec->old_targetv);
+	npv = print_version(rec->new_parentv);
+	opv = print_version(rec->old_parentv);
+
+	str = g_strdup_printf("\n -- Record:\n"
+		"    Recno     %d\n"
+		"    KML off   %lld\n" 
+		"    Version   %d\n" 
+		"    Len       %d\n"
+		"    Suf len   %d\n"
+		"    Time      %s\n"
+		"    Opcode    %d\n"
+		"    Op        %s\n"
+		"    Pid       %d\n"
+		"    AUid      %d\n"
+		"    Fsuid     %d\n" 
+		"    Fsgid     %d\n"
+		"    Prevrec   %d\n" 
+		"    Ngroups   %d\n"
+		//"    Groups    @{$self->{groups}}\n" 
+		" -- Path:\n"
+		"    Inode     %d\n"
+		"    Gen num   %u\n"
+                "    Old mode  %o\n"
+                "    Old rdev  %x\n"
+                "    Old uid   %llu\n"
+                "    Old gid   %llu\n"
+		"    Path      %*s\n"
+		//"    Open_mode %o\n",
+		"    Pathlen   %d\n"
+		"    Tgt       %*s\n"
+		"    Tgtlen    %d\n" 
+		"    Old Tgt   %*s\n"
+		"    Old Tgtln %d\n" 
+		" -- Attr:\n"
+		"    Valid     %x\n"
+		"    mode %o, uid %d, gid %d, size %lld, mtime %s, ctime %s rdev %x (%d:%d)\n"
+		" -- Versions:\n"
+		"    New object %s\n"
+		"    Old object %s\n"
+		"    New target %s\n"
+		"    Old target %s\n"
+		"    New parent %s\n"
+		"    Old parent %s\n", 
+		
+		rec->suffix->recno, 
+		rec->offset, 
+		rec->prefix.hdr->version, 
+		rec->prefix.hdr->len, 
+		rec->suffix->len, 
+		rectime,
+		rec->prefix.hdr->opcode, 
+		print_opname (rec->prefix.hdr->opcode),
+		rec->prefix.hdr->pid,
+		rec->prefix.hdr->auid,
+		rec->prefix.hdr->fsuid,
+		rec->prefix.hdr->fsgid,
+		rec->suffix->prevrec,
+		rec->prefix.hdr->ngroups,
+		rec->ino,
+		rec->generation,
+                rec->old_mode,
+                rec->old_rdev,
+                rec->old_uid,
+                rec->old_gid,
+		rec->pathlen,
+		STR(rec->path),
+		rec->pathlen,
+		rec->targetlen,
+		STR(rec->target),
+		rec->targetlen,
+		rec->old_targetlen,
+		STR(rec->old_target),
+		rec->old_targetlen,
+		
+		rec->valid, 
+		rec->mode,
+		rec->uid,
+		rec->gid,
+		rec->size,
+		mtime,
+		ctime,
+		rec->rdev, rec->major, rec->minor,
+		nov, oov, ntv, otv, npv, opv);
+		
+	free(nov);
+	free(oov);
+	free(ntv);
+	free(otv);
+	free(npv);
+	free(opv);
+
+	free(rectime); 
+	free(ctime);
+	free(mtime);
+
+	return str;
+}
+#endif
diff --git a/fs/intermezzo/methods.c b/fs/intermezzo/methods.c
new file mode 100644
index 00000000000000..e50110877bd835
--- /dev/null
+++ b/fs/intermezzo/methods.c
@@ -0,0 +1,497 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ *  Copyright (C) 2000 Stelias Computing, Inc.
+ *  Copyright (C) 2000 Red Hat, Inc.
+ *  Copyright (C) 2000 Mountain View Data, Inc.
+ *
+ *  Extended Attribute Support
+ *  Copyright (C) 2001 Shirish H. Phatak, Tacit Networks, Inc.
+ *
+ *   This file is part of InterMezzo, http://www.inter-mezzo.org.
+ *
+ *   InterMezzo is free software; you can redistribute it and/or
+ *   modify it under the terms of version 2 of the GNU General Public
+ *   License as published by the Free Software Foundation.
+ *
+ *   InterMezzo is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with InterMezzo; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <stdarg.h>
+
+#include <asm/bitops.h>
+#include <asm/uaccess.h>
+#include <asm/system.h>
+
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/ext2_fs.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/sched.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <linux/locks.h>
+#include <linux/blkdev.h>
+#include <linux/init.h>
+#define __NO_VERSION__
+#include <linux/module.h>
+
+#include <linux/fsfilter.h>
+#include <linux/intermezzo_fs.h>
+
+
+int filter_print_entry = 0;
+int filter_debug = 0xfffffff;
+/*
+ * The function in this file are responsible for setting up the 
+ * correct methods layered file systems like InterMezzo and snapfs
+ */
+
+
+static struct filter_fs filter_oppar[FILTER_FS_TYPES];
+
+/* get to the upper methods (intermezzo, snapfs) */
+inline struct super_operations *filter_c2usops(struct filter_fs *cache)
+{
+        return &cache->o_fops.filter_sops;
+}
+
+inline struct inode_operations *filter_c2udiops(struct filter_fs *cache)
+{
+        return &cache->o_fops.filter_dir_iops;
+}
+
+
+inline struct inode_operations *filter_c2ufiops(struct filter_fs *cache)
+{
+        return &cache->o_fops.filter_file_iops;
+}
+
+inline struct inode_operations *filter_c2usiops(struct filter_fs *cache)
+{
+        return &cache->o_fops.filter_sym_iops;
+}
+
+
+inline struct file_operations *filter_c2udfops(struct filter_fs *cache)
+{
+        return &cache->o_fops.filter_dir_fops;
+}
+
+inline struct file_operations *filter_c2uffops(struct filter_fs *cache)
+{
+        return &cache->o_fops.filter_file_fops;
+}
+
+inline struct file_operations *filter_c2usfops(struct filter_fs *cache)
+{
+        return &cache->o_fops.filter_sym_fops;
+}
+
+inline struct dentry_operations *filter_c2udops(struct filter_fs *cache)
+{
+        return &cache->o_fops.filter_dentry_ops;
+}
+
+/* get to the cache (lower) methods */
+inline struct super_operations *filter_c2csops(struct filter_fs *cache)
+{
+        return cache->o_caops.cache_sops;
+}
+
+inline struct inode_operations *filter_c2cdiops(struct filter_fs *cache)
+{
+        return cache->o_caops.cache_dir_iops;
+}
+
+inline struct inode_operations *filter_c2cfiops(struct filter_fs *cache)
+{
+        return cache->o_caops.cache_file_iops;
+}
+
+inline struct inode_operations *filter_c2csiops(struct filter_fs *cache)
+{
+        return cache->o_caops.cache_sym_iops;
+}
+
+inline struct file_operations *filter_c2cdfops(struct filter_fs *cache)
+{
+        return cache->o_caops.cache_dir_fops;
+}
+
+inline struct file_operations *filter_c2cffops(struct filter_fs *cache)
+{
+        return cache->o_caops.cache_file_fops;
+}
+
+inline struct file_operations *filter_c2csfops(struct filter_fs *cache)
+{
+        return cache->o_caops.cache_sym_fops;
+}
+
+inline struct dentry_operations *filter_c2cdops(struct filter_fs *cache)
+{
+        return cache->o_caops.cache_dentry_ops;
+}
+
+
+void filter_setup_journal_ops(struct filter_fs *ops, char *cache_type)
+{
+        if ( strlen(cache_type) == strlen("ext2") &&
+             memcmp(cache_type, "ext2", strlen("ext2")) == 0 ) {
+#if CONFIG_EXT2_FS
+                ops->o_trops = &presto_ext2_journal_ops;
+#else
+                ops->o_trops = NULL;
+#endif
+                FDEBUG(D_SUPER, "ops at %p\n", ops);
+        }
+
+        if ( strlen(cache_type) == strlen("ext3") &&
+             memcmp(cache_type, "ext3", strlen("ext3")) == 0 ) {
+#if defined(CONFIG_EXT3_FS) || defined (CONFIG_EXT3_FS_MODULE)
+                ops->o_trops = &presto_ext3_journal_ops;
+#else
+                ops->o_trops = NULL;
+#endif
+                FDEBUG(D_SUPER, "ops at %p\n", ops);
+        }
+
+        if ( strlen(cache_type) == strlen("tmpfs") &&
+             memcmp(cache_type, "tmpfs", strlen("tmpfs")) == 0 ) {
+#if defined(CONFIG_TMPFS)
+                ops->o_trops = &presto_tmpfs_journal_ops;
+#else
+                ops->o_trops = NULL;
+#endif
+                FDEBUG(D_SUPER, "ops at %p\n", ops);
+        }
+
+        if ( strlen(cache_type) == strlen("reiserfs") &&
+             memcmp(cache_type, "reiserfs", strlen("reiserfs")) == 0 ) {
+#if 0
+		/* #if defined(CONFIG_REISERFS_FS) || defined(CONFIG_REISERFS_FS_MODULE) */
+                ops->o_trops = &presto_reiserfs_journal_ops;
+#else
+                ops->o_trops = NULL;
+#endif
+                FDEBUG(D_SUPER, "ops at %p\n", ops);
+        }
+
+        if ( strlen(cache_type) == strlen("xfs") &&
+             memcmp(cache_type, "xfs", strlen("xfs")) == 0 ) {
+#if 0
+/*#if defined(CONFIG_XFS_FS) || defined (CONFIG_XFS_FS_MODULE) */
+                ops->o_trops = &presto_xfs_journal_ops;
+#else
+                ops->o_trops = NULL;
+#endif
+                FDEBUG(D_SUPER, "ops at %p\n", ops);
+        }
+
+        if ( strlen(cache_type) == strlen("obdfs") &&
+             memcmp(cache_type, "obdfs", strlen("obdfs")) == 0 ) {
+#if defined(CONFIG_OBDFS_FS) || defined (CONFIG_OBDFS_FS_MODULE)
+                ops->o_trops = presto_obdfs_journal_ops;
+#else
+                ops->o_trops = NULL;
+#endif
+                FDEBUG(D_SUPER, "ops at %p\n", ops);
+        }
+}
+
+
+/* find the cache for this FS */
+struct filter_fs *filter_get_filter_fs(const char *cache_type)
+{
+        struct filter_fs *ops = NULL;
+        FENTRY;
+
+        if ( strlen(cache_type) == strlen("ext2") &&
+             memcmp(cache_type, "ext2", strlen("ext2")) == 0 ) {
+                ops = &filter_oppar[FILTER_FS_EXT2];
+                FDEBUG(D_SUPER, "ops at %p\n", ops);
+        }
+
+        if ( strlen(cache_type) == strlen("xfs") &&
+             memcmp(cache_type, "xfs", strlen("xfs")) == 0 ) {
+                ops = &filter_oppar[FILTER_FS_XFS];
+                FDEBUG(D_SUPER, "ops at %p\n", ops);
+        }
+
+        if ( strlen(cache_type) == strlen("ext3") &&
+             memcmp(cache_type, "ext3", strlen("ext3")) == 0 ) {
+                ops = &filter_oppar[FILTER_FS_EXT3];
+                FDEBUG(D_SUPER, "ops at %p\n", ops);
+        }
+
+        if ( strlen(cache_type) == strlen("tmpfs") &&
+             memcmp(cache_type, "tmpfs", strlen("tmpfs")) == 0 ) {
+                ops = &filter_oppar[FILTER_FS_TMPFS];
+                FDEBUG(D_SUPER, "ops at %p\n", ops);
+        }
+
+        if ( strlen(cache_type) == strlen("reiserfs") &&
+             memcmp(cache_type, "reiserfs", strlen("reiserfs")) == 0 ) {
+                ops = &filter_oppar[FILTER_FS_REISERFS];
+                FDEBUG(D_SUPER, "ops at %p\n", ops);
+        }
+        if ( strlen(cache_type) == strlen("obdfs") &&
+             memcmp(cache_type, "obdfs", strlen("obdfs")) == 0 ) {
+                ops = &filter_oppar[FILTER_FS_OBDFS];
+                FDEBUG(D_SUPER, "ops at %p\n", ops);
+        }
+
+        if (ops == NULL) {
+                CERROR("prepare to die: unrecognized cache type for Filter\n");
+        }
+        FEXIT;
+        return ops;
+}
+
+
+/*
+ *  Frobnicate the InterMezzo operations
+ *    this establishes the link between the InterMezzo file system
+ *    and the underlying file system used for the cache.
+ */
+
+void filter_setup_super_ops(struct filter_fs *cache, struct super_operations *cache_sops, struct super_operations *filter_sops)
+{
+        /* Get ptr to the shared struct snapfs_ops structure. */
+        struct filter_ops *props = &cache->o_fops;
+        /* Get ptr to the shared struct cache_ops structure. */
+        struct cache_ops *caops = &cache->o_caops;
+
+        FENTRY;
+
+        if ( cache->o_flags & FILTER_DID_SUPER_OPS ) {
+                FEXIT;
+                return;
+        }
+        cache->o_flags |= FILTER_DID_SUPER_OPS;
+
+        /* Set the cache superblock operations to point to the
+           superblock operations of the underlying file system.  */
+        caops->cache_sops = cache_sops;
+
+        /*
+         * Copy the cache (real fs) superblock ops to the "filter"
+         * superblock ops as defaults. Some will be changed below
+         */
+        memcpy(&props->filter_sops, cache_sops, sizeof(*cache_sops));
+
+        /* 'put_super' unconditionally is that of filter */
+        if (filter_sops->put_super) { 
+                props->filter_sops.put_super = filter_sops->put_super;
+        }
+
+        if (cache_sops->read_inode) {
+                props->filter_sops.read_inode = filter_sops->read_inode;
+                FDEBUG(D_INODE, "setting filter_read_inode, cache_ops %p, cache %p, ri at %p\n",
+                      cache, cache, props->filter_sops.read_inode);
+        }
+
+        if (cache_sops->remount_fs)
+                props->filter_sops.remount_fs = filter_sops->remount_fs;
+        FEXIT;
+}
+
+
+void filter_setup_dir_ops(struct filter_fs *cache, struct inode *inode, struct inode_operations *filter_iops, struct file_operations *filter_fops)
+{
+        struct inode_operations *cache_filter_iops;
+        struct inode_operations *cache_iops = inode->i_op;
+        struct file_operations *cache_fops = inode->i_fop;
+        FENTRY;
+
+        if ( cache->o_flags & FILTER_DID_DIR_OPS ) {
+                FEXIT;
+                return;
+        }
+        cache->o_flags |= FILTER_DID_DIR_OPS;
+
+        /* former ops become cache_ops */
+        cache->o_caops.cache_dir_iops = cache_iops;
+        cache->o_caops.cache_dir_fops = cache_fops;
+        FDEBUG(D_SUPER, "filter at %p, cache iops %p, iops %p\n",
+               cache, cache_iops, filter_c2udiops(cache));
+
+        /* setup our dir iops: copy and modify */
+        memcpy(filter_c2udiops(cache), cache_iops, sizeof(*cache_iops));
+
+        /* abbreviate */
+        cache_filter_iops = filter_c2udiops(cache);
+
+        /* methods that filter if cache filesystem has these ops */
+        if (cache_iops->lookup && filter_iops->lookup)
+                cache_filter_iops->lookup = filter_iops->lookup;
+        if (cache_iops->create && filter_iops->create)
+                cache_filter_iops->create = filter_iops->create;
+        if (cache_iops->link && filter_iops->link)
+                cache_filter_iops->link = filter_iops->link;
+        if (cache_iops->unlink && filter_iops->unlink)
+                cache_filter_iops->unlink = filter_iops->unlink;
+        if (cache_iops->mkdir && filter_iops->mkdir)
+                cache_filter_iops->mkdir = filter_iops->mkdir;
+        if (cache_iops->rmdir && filter_iops->rmdir)
+                cache_filter_iops->rmdir = filter_iops->rmdir;
+        if (cache_iops->symlink && filter_iops->symlink)
+                cache_filter_iops->symlink = filter_iops->symlink;
+        if (cache_iops->rename && filter_iops->rename)
+                cache_filter_iops->rename = filter_iops->rename;
+        if (cache_iops->mknod && filter_iops->mknod)
+                cache_filter_iops->mknod = filter_iops->mknod;
+        if (cache_iops->permission && filter_iops->permission)
+                cache_filter_iops->permission = filter_iops->permission;
+        if (cache_iops->getattr)
+                cache_filter_iops->getattr = filter_iops->getattr;
+        /* Some filesystems do not use a setattr method of their own
+           instead relying on inode_setattr/write_inode. We still need to
+           journal these so we make setattr an unconditional operation. 
+           XXX: we should probably check for write_inode. SHP
+        */
+        /*if (cache_iops->setattr)*/
+                cache_filter_iops->setattr = filter_iops->setattr;
+#ifdef CONFIG_FS_EXT_ATTR
+	/* For now we assume that posix acls are handled through extended
+	* attributes. If this is not the case, we must explicitly trap 
+	* posix_set_acl. SHP
+	*/
+	if (cache_iops->set_ext_attr && filter_iops->set_ext_attr)
+		cache_filter_iops->set_ext_attr = filter_iops->set_ext_attr;
+#endif
+
+
+        /* copy dir fops */
+        memcpy(filter_c2udfops(cache), cache_fops, sizeof(*cache_fops));
+
+        /* unconditional filtering operations */
+        filter_c2udfops(cache)->ioctl = filter_fops->ioctl;
+
+        FEXIT;
+}
+
+
+void filter_setup_file_ops(struct filter_fs *cache, struct inode *inode, struct inode_operations *filter_iops, struct file_operations *filter_fops)
+{
+        struct inode_operations *pr_iops;
+        struct inode_operations *cache_iops = inode->i_op;
+        struct file_operations *cache_fops = inode->i_fop;
+        FENTRY;
+
+        if ( cache->o_flags & FILTER_DID_FILE_OPS ) {
+                FEXIT;
+                return;
+        }
+        cache->o_flags |= FILTER_DID_FILE_OPS;
+
+        /* steal the old ops */
+        /* former ops become cache_ops */
+        cache->o_caops.cache_file_iops = cache_iops;
+        cache->o_caops.cache_file_fops = cache_fops;
+        
+        /* abbreviate */
+        pr_iops = filter_c2ufiops(cache); 
+
+        /* setup our dir iops: copy and modify */
+        memcpy(pr_iops, cache_iops, sizeof(*cache_iops));
+
+        /* copy dir fops */
+        CERROR("*** cache file ops at %p\n", cache_fops);
+        memcpy(filter_c2uffops(cache), cache_fops, sizeof(*cache_fops));
+
+        /* assign */
+        /* See comments above in filter_setup_dir_ops. SHP */
+        /*if (cache_iops->setattr)*/
+                pr_iops->setattr = filter_iops->setattr;
+        if (cache_iops->getattr)
+                pr_iops->getattr = filter_iops->getattr;
+        /* XXX Should this be conditional rmr ? */
+        pr_iops->permission = filter_iops->permission;
+#ifdef CONFIG_FS_EXT_ATTR
+    	/* For now we assume that posix acls are handled through extended
+	* attributes. If this is not the case, we must explicitly trap and 
+	* posix_set_acl
+	*/
+	if (cache_iops->set_ext_attr && filter_iops->set_ext_attr)
+		pr_iops->set_ext_attr = filter_iops->set_ext_attr;
+#endif
+
+
+        /* unconditional filtering operations */
+        filter_c2uffops(cache)->open = filter_fops->open;
+        filter_c2uffops(cache)->release = filter_fops->release;
+        filter_c2uffops(cache)->write = filter_fops->write;
+        filter_c2uffops(cache)->ioctl = filter_fops->ioctl;
+
+        FEXIT;
+}
+
+/* XXX in 2.3 there are "fast" and "slow" symlink ops for ext2 XXX */
+void filter_setup_symlink_ops(struct filter_fs *cache, struct inode *inode, struct inode_operations *filter_iops, struct file_operations *filter_fops)
+{
+        struct inode_operations *pr_iops;
+        struct inode_operations *cache_iops = inode->i_op;
+        struct file_operations *cache_fops = inode->i_fop;
+        FENTRY;
+
+        if ( cache->o_flags & FILTER_DID_SYMLINK_OPS ) {
+                FEXIT;
+                return;
+        }
+        cache->o_flags |= FILTER_DID_SYMLINK_OPS;
+
+        /* steal the old ops */
+        cache->o_caops.cache_sym_iops = cache_iops;
+        cache->o_caops.cache_sym_fops = cache_fops;
+
+        /* abbreviate */
+        pr_iops = filter_c2usiops(cache); 
+
+        /* setup our dir iops: copy and modify */
+        memcpy(pr_iops, cache_iops, sizeof(*cache_iops));
+
+        /* See comments above in filter_setup_dir_ops. SHP */
+        /* if (cache_iops->setattr) */
+                pr_iops->setattr = filter_iops->setattr;
+        if (cache_iops->getattr)
+                pr_iops->getattr = filter_iops->getattr;
+
+        /* assign */
+        /* copy fops - careful for symlinks they might be NULL */
+        if ( cache_fops ) { 
+                memcpy(filter_c2usfops(cache), cache_fops, sizeof(*cache_fops));
+        }
+
+        FEXIT;
+}
+
+void filter_setup_dentry_ops(struct filter_fs *cache,
+                             struct dentry_operations *cache_dop,
+                             struct dentry_operations *filter_dop)
+{
+        if ( cache->o_flags & FILTER_DID_DENTRY_OPS ) {
+                FEXIT;
+                return;
+        }
+        cache->o_flags |= FILTER_DID_DENTRY_OPS;
+
+        cache->o_caops.cache_dentry_ops = cache_dop;
+        memcpy(&cache->o_fops.filter_dentry_ops,
+               filter_dop, sizeof(*filter_dop));
+        
+        if (cache_dop &&  cache_dop != filter_dop && cache_dop->d_revalidate){
+                CERROR("WARNING: filter overriding revalidation!\n");
+        }
+        return;
+}
diff --git a/fs/intermezzo/presto.c b/fs/intermezzo/presto.c
new file mode 100644
index 00000000000000..c665ea1096a07e
--- /dev/null
+++ b/fs/intermezzo/presto.c
@@ -0,0 +1,740 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ *  Author: Peter J. Braam <braam@clusterfs.com>
+ *  Copyright (C) 1998 Stelias Computing Inc
+ *  Copyright (C) 1999 Red Hat Inc.
+ *
+ *   This file is part of InterMezzo, http://www.inter-mezzo.org.
+ *
+ *   InterMezzo is free software; you can redistribute it and/or
+ *   modify it under the terms of version 2 of the GNU General Public
+ *   License as published by the Free Software Foundation.
+ *
+ *   InterMezzo is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with InterMezzo; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * This file implements basic routines supporting the semantics
+ */
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/vmalloc.h>
+#include <linux/slab.h>
+#include <linux/locks.h>
+#include <asm/segment.h>
+#include <asm/uaccess.h>
+#include <linux/string.h>
+#include <linux/smp_lock.h>
+
+#include <linux/intermezzo_fs.h>
+#include <linux/intermezzo_psdev.h>
+
+int presto_walk(const char *name, struct nameidata *nd)
+{
+        int err;
+        /* we do not follow symlinks to support symlink operations 
+           correctly. The vfs should always hand us resolved dentries
+           so we should not be required to use LOOKUP_FOLLOW. At the
+           reintegrating end, lento again should be working with the 
+           resolved pathname and not the symlink. SHP
+           XXX: This code implies that direct symlinks do not work. SHP
+        */
+        unsigned int flags = LOOKUP_POSITIVE;
+
+        ENTRY;
+        err = 0;
+        if (path_init(name, flags, nd)) 
+                err = path_walk(name, nd);
+        return err;
+}
+
+
+/* find the presto minor device for this inode */
+int presto_i2m(struct inode *inode)
+{
+        struct presto_cache *cache;
+        ENTRY;
+        cache = presto_get_cache(inode);
+        CDEBUG(D_PSDEV, "\n");
+        if ( !cache ) {
+                CERROR("PRESTO: BAD: cannot find cache for dev %d, ino %ld\n",
+                       inode->i_dev, inode->i_ino);
+                EXIT;
+                return -1;
+        }
+        EXIT;
+        return cache->cache_psdev->uc_minor;
+}
+
+inline int presto_f2m(struct presto_file_set *fset)
+{
+        return fset->fset_cache->cache_psdev->uc_minor;
+
+}
+
+inline int presto_c2m(struct presto_cache *cache)
+{
+        return cache->cache_psdev->uc_minor;
+
+}
+
+/* XXX check this out */
+struct presto_file_set *presto_path2fileset(const char *name)
+{
+        struct nameidata nd;
+        struct presto_file_set *fileset;
+        int error;
+        ENTRY;
+
+        error = presto_walk(name, &nd);
+        if (!error) { 
+#if 0
+                error = do_revalidate(nd.dentry);
+#endif
+                if (!error) 
+                        fileset = presto_fset(nd.dentry); 
+                path_release(&nd); 
+                EXIT;
+        } else 
+                fileset = ERR_PTR(error);
+
+        EXIT;
+        return fileset;
+}
+
+/* check a flag on this dentry or fset root.  Semantics:
+   - most flags: test if it is set
+   - PRESTO_ATTR, PRESTO_DATA return 1 if PRESTO_FSETINSYNC is set
+*/
+int presto_chk(struct dentry *dentry, int flag)
+{
+        int minor;
+        struct presto_file_set *fset = presto_fset(dentry);
+
+        ENTRY;
+        minor = presto_i2m(dentry->d_inode);
+        if ( izo_channels[minor].uc_no_filter ) {
+                EXIT;
+                return ~0;
+        }
+
+        /* if the fileset is in sync DATA and ATTR are OK */
+        if ( fset &&
+             (flag == PRESTO_ATTR || flag == PRESTO_DATA) &&
+             (fset->fset_flags & FSET_INSYNC) ) {
+                CDEBUG(D_INODE, "fset in sync (ino %ld)!\n",
+                       fset->fset_dentry->d_inode->i_ino);
+                EXIT;
+                return 1;
+        }
+
+        EXIT;
+        return (presto_d2d(dentry)->dd_flags & flag);
+}
+
+/* set a bit in the dentry flags */
+void presto_set(struct dentry *dentry, int flag)
+{
+        ENTRY;
+        if ( dentry->d_inode ) {
+                CDEBUG(D_INODE, "SET ino %ld, flag %x\n",
+                       dentry->d_inode->i_ino, flag);
+        }
+        if ( presto_d2d(dentry) == NULL) {
+                CERROR("dentry without d_fsdata in presto_set: %p: %*s", dentry,
+                                dentry->d_name.len, dentry->d_name.name);
+                BUG();
+        }
+        presto_d2d(dentry)->dd_flags |= flag;
+        EXIT;
+}
+
+/* given a path: complete the closes on the fset */
+int lento_complete_closes(char *path)
+{
+        struct nameidata nd;
+        struct dentry *dentry;
+        int error;
+        struct presto_file_set *fset;
+        ENTRY;
+
+        error = presto_walk(path, &nd);
+        if (error) {
+                EXIT;
+                return error;
+        }
+
+        dentry = nd.dentry;
+
+        error = -ENXIO;
+        if ( !presto_ispresto(dentry->d_inode) ) {
+                EXIT;
+                goto out_complete;
+        }
+        
+        fset = presto_fset(dentry);
+        error = -EINVAL;
+        if ( !fset ) {
+                CERROR("No fileset!\n");
+                EXIT;
+                goto out_complete;
+        }
+        
+        /* transactions and locking are internal to this function */ 
+        error = presto_complete_lml(fset);
+        
+        EXIT;
+ out_complete:
+        path_release(&nd); 
+        return error;
+}       
+
+#if 0
+/* given a path: write a close record and cancel an LML record, finally
+   call truncate LML.  Lento is doing this so it goes in with uid/gid's 
+   root. 
+*/ 
+int lento_cancel_lml(char *path, 
+                     __u64 lml_offset, 
+                     __u64 remote_ino, 
+                     __u32 remote_generation,
+                     __u32 remote_version, 
+                     struct lento_vfs_context *info)
+{
+        struct nameidata nd;
+        struct rec_info rec;
+        struct dentry *dentry;
+        int error;
+        struct presto_file_set *fset;
+        void *handle; 
+        struct presto_version new_ver;
+        ENTRY;
+
+
+        error = presto_walk(path, &nd);
+        if (error) {
+                EXIT;
+                return error;
+        }
+        dentry = nd.dentry;
+
+        error = -ENXIO;
+        if ( !presto_ispresto(dentry->d_inode) ) {
+                EXIT;
+                goto out_cancel_lml;
+        }
+        
+        fset = presto_fset(dentry);
+
+        error=-EINVAL;
+        if (fset==NULL) {
+                CERROR("No fileset!\n");
+                EXIT;
+                goto out_cancel_lml;
+        }
+        
+        /* this only requires a transaction below which is automatic */
+        handle = presto_trans_start(fset, dentry->d_inode, PRESTO_OP_RELEASE); 
+        if ( IS_ERR(handle) ) {
+                error = -ENOMEM; 
+                EXIT; 
+                goto out_cancel_lml; 
+        } 
+        
+        if (info->flags & LENTO_FL_CANCEL_LML) {
+                error = presto_clear_lml_close(fset, lml_offset);
+                if ( error ) {
+                        presto_trans_commit(fset, handle);
+                        EXIT; 
+                        goto out_cancel_lml;
+                }
+        }
+
+
+        if (info->flags & LENTO_FL_WRITE_KML) {
+                struct file file;
+                file.private_data = NULL;
+                file.f_dentry = dentry; 
+                presto_getversion(&new_ver, dentry->d_inode);
+                error = presto_journal_close(&rec, fset, &file, dentry, 
+                                             &new_ver);
+                if ( error ) {
+                        EXIT; 
+                        presto_trans_commit(fset, handle);
+                        goto out_cancel_lml;
+                }
+        }
+
+        if (info->flags & LENTO_FL_WRITE_EXPECT) {
+                error = presto_write_last_rcvd(&rec, fset, info); 
+                if ( error < 0 ) {
+                        EXIT; 
+                        presto_trans_commit(fset, handle);
+                        goto out_cancel_lml;
+                }
+        }
+
+        presto_trans_commit(fset, handle);
+
+        if (info->flags & LENTO_FL_CANCEL_LML) {
+            presto_truncate_lml(fset); 
+        }
+                
+
+ out_cancel_lml:
+        EXIT;
+        path_release(&nd); 
+        return error;
+}       
+#endif 
+
+/* given a dentry, operate on the flags in its dentry.  Used by downcalls */
+int izo_mark_dentry(struct dentry *dentry, int and_flag, int or_flag, 
+                       int *res)
+{
+        int error = 0;
+
+        if (presto_d2d(dentry) == NULL) {
+                CERROR("InterMezzo: no ddata for inode %ld in %s\n",
+                       dentry->d_inode->i_ino, __FUNCTION__);
+                return -EINVAL;
+        }
+
+        CDEBUG(D_INODE, "inode: %ld, and flag %x, or flag %x, dd_flags %x\n",
+               dentry->d_inode->i_ino, and_flag, or_flag,
+               presto_d2d(dentry)->dd_flags);
+
+        presto_d2d(dentry)->dd_flags &= and_flag;
+        presto_d2d(dentry)->dd_flags |= or_flag;
+        if (res) 
+                *res = presto_d2d(dentry)->dd_flags;
+
+        return error;
+}
+
+/* given a path, operate on the flags in its cache.  Used by mark_ioctl */
+int izo_mark_cache(struct dentry *dentry, int and_flag, int or_flag, 
+                   int *res)
+{
+        struct presto_cache *cache;
+
+        if (presto_d2d(dentry) == NULL) {
+                CERROR("InterMezzo: no ddata for inode %ld in %s\n",
+                       dentry->d_inode->i_ino, __FUNCTION__);
+                return -EINVAL;
+        }
+
+        CDEBUG(D_INODE, "inode: %ld, and flag %x, or flag %x, dd_flags %x\n",
+               dentry->d_inode->i_ino, and_flag, or_flag,
+               presto_d2d(dentry)->dd_flags);
+
+        cache = presto_get_cache(dentry->d_inode);
+        if ( !cache ) {
+                CERROR("PRESTO: BAD: cannot find cache in izo_mark_cache\n");
+                return -EBADF;
+        }
+
+        ((int)cache->cache_flags) &= and_flag;
+        ((int)cache->cache_flags) |= or_flag;
+        if (res)
+                *res = (int)cache->cache_flags;
+
+        return 0;
+}
+
+int presto_set_max_kml_size(const char *path, unsigned long max_size)
+{
+        struct presto_file_set *fset;
+
+        ENTRY;
+
+        fset = presto_path2fileset(path);
+        if (IS_ERR(fset)) {
+                EXIT;
+                return PTR_ERR(fset);
+        }
+
+        fset->kml_truncate_size = max_size;
+        CDEBUG(D_CACHE, "KML truncate size set to %lu bytes for fset %s.\n",
+               max_size, path);
+
+        EXIT;
+        return 0;
+}
+
+int izo_mark_fset(struct dentry *dentry, int and_flag, int or_flag, 
+                  int * res)
+{
+        struct presto_file_set *fset;
+        
+        fset = presto_fset(dentry);
+        if ( !fset ) {
+                CERROR("PRESTO: BAD: cannot find cache in izo_mark_cache\n");
+                make_bad_inode(dentry->d_inode);
+                return -EBADF;
+        }
+        ((int)fset->fset_flags) &= and_flag;
+        ((int)fset->fset_flags) |= or_flag;
+        if (res)
+                *res = (int)fset->fset_flags;
+
+        return 0;
+}
+
+/* talk to Lento about the permit */
+static int presto_permit_upcall(struct dentry *dentry)
+{
+        int rc;
+        char *path, *buffer;
+        int pathlen;
+        int minor;
+        int fsetnamelen;
+        struct presto_file_set *fset = NULL;
+
+        ENTRY;
+
+        if ( (minor = presto_i2m(dentry->d_inode)) < 0) {
+                EXIT;
+                return -EINVAL;
+        }
+
+        fset = presto_fset(dentry);
+        if (!fset) {
+                EXIT;
+                return -ENOTCONN;
+        }
+        
+        if ( !presto_lento_up(minor) ) {
+                if ( fset->fset_flags & FSET_STEAL_PERMIT ) {
+                        EXIT;
+                        return 0;
+                } else {
+                        EXIT;
+                        return -ENOTCONN;
+                }
+        }
+
+        PRESTO_ALLOC(buffer, PAGE_SIZE);
+        if ( !buffer ) {
+                CERROR("PRESTO: out of memory!\n");
+                EXIT;
+                return -ENOMEM;
+        }
+        path = presto_path(dentry, fset->fset_dentry, buffer, PAGE_SIZE);
+        pathlen = MYPATHLEN(buffer, path);
+        fsetnamelen = strlen(fset->fset_name); 
+        rc = izo_upc_permit(minor, dentry, pathlen, path, fset->fset_name);
+        PRESTO_FREE(buffer, PAGE_SIZE);
+        EXIT;
+        return rc;
+}
+
+/* get a write permit for the fileset of this inode
+ *  - if this returns a negative value there was an error
+ *  - if 0 is returned the permit was already in the kernel -- or --
+ *    Lento gave us the permit without reintegration
+ *  - lento returns the number of records it reintegrated 
+ *
+ * Note that if this fileset has branches, a permit will -never- to a normal
+ * process for writing in the data area (ie, outside of .intermezzo)
+ */
+int presto_get_permit(struct inode * inode)
+{
+        struct dentry *de;
+        struct presto_file_set *fset;
+        int minor = presto_i2m(inode);
+        int rc = 0;
+
+        ENTRY;
+        if (minor < 0) {
+                EXIT;
+                return -1;
+        }
+
+        if ( ISLENTO(minor) ) {
+                EXIT;
+                return 0;
+        }
+
+        if (list_empty(&inode->i_dentry)) {
+                CERROR("No alias for inode %d\n", (int) inode->i_ino);
+                EXIT;
+                return -EINVAL;
+        }
+
+        de = list_entry(inode->i_dentry.next, struct dentry, d_alias);
+
+        if (presto_chk(de, PRESTO_DONT_JOURNAL)) {
+                EXIT;
+                return 0;
+        }
+
+        fset = presto_fset(de);
+        if ( !fset ) {
+                CERROR("Presto: no fileset in presto_get_permit!\n");
+                EXIT;
+                return -EINVAL;
+        }
+
+        if (fset->fset_flags & FSET_HAS_BRANCHES) {
+                EXIT;
+                return -EROFS;
+        }
+
+        spin_lock(&fset->fset_permit_lock);
+        if (fset->fset_flags & FSET_HASPERMIT) {
+                fset->fset_permit_count++;
+                CDEBUG(D_INODE, "permit count now %d, inode %lx\n", 
+                       fset->fset_permit_count, inode->i_ino);
+                spin_unlock(&fset->fset_permit_lock);
+                EXIT;
+                return 0;
+        }
+
+        /* Allow reintegration to proceed without locks -SHP */
+        fset->fset_permit_upcall_count++;
+        if (fset->fset_permit_upcall_count == 1) {
+                spin_unlock(&fset->fset_permit_lock);
+                rc = presto_permit_upcall(fset->fset_dentry);
+                spin_lock(&fset->fset_permit_lock);
+                fset->fset_permit_upcall_count--;
+                if (rc == 0) {
+                        izo_mark_fset(fset->fset_dentry, ~0, FSET_HASPERMIT,
+                                      NULL);
+                        fset->fset_permit_count++;
+                } else if (rc == ENOTCONN) {
+                        CERROR("InterMezzo: disconnected operation. stealing permit.\n");
+                        izo_mark_fset(fset->fset_dentry, ~0, FSET_HASPERMIT,
+                                      NULL);
+                        fset->fset_permit_count++;
+                        /* set a disconnected flag here to stop upcalls */
+                        rc = 0;
+                } else {
+                        CERROR("InterMezzo: presto_permit_upcall failed: %d\n", rc);
+                        rc = -EROFS;
+                        /* go to sleep here and try again? */
+                }
+                wake_up_interruptible(&fset->fset_permit_queue);
+        } else {
+                /* Someone is already doing an upcall; go to sleep. */
+                DECLARE_WAITQUEUE(wait, current);
+
+                spin_unlock(&fset->fset_permit_lock);
+                add_wait_queue(&fset->fset_permit_queue, &wait);
+                while (1) {
+                        set_current_state(TASK_INTERRUPTIBLE);
+
+                        spin_lock(&fset->fset_permit_lock);
+                        if (fset->fset_permit_upcall_count == 0)
+                                break;
+                        spin_unlock(&fset->fset_permit_lock);
+
+                        if (signal_pending(current)) {
+                                remove_wait_queue(&fset->fset_permit_queue,
+                                                  &wait);
+                                return -ERESTARTSYS;
+                        }
+                        schedule();
+                }
+                remove_wait_queue(&fset->fset_permit_queue, &wait);
+                /* We've been woken up: do we have the permit? */
+                if (fset->fset_flags & FSET_HASPERMIT)
+                        /* FIXME: Is this the right thing? */
+                        rc = -EAGAIN;
+        }
+
+        CDEBUG(D_INODE, "permit count now %d, ino %ld (likely 1), "
+               "rc %d\n", fset->fset_permit_count, inode->i_ino, rc);
+        spin_unlock(&fset->fset_permit_lock);
+        EXIT;
+        return rc;
+}
+
+int presto_put_permit(struct inode * inode)
+{
+        struct dentry *de;
+        struct presto_file_set *fset;
+        int minor = presto_i2m(inode);
+
+        ENTRY;
+        if (minor < 0) {
+                EXIT;
+                return -1;
+        }
+
+        if ( ISLENTO(minor) ) {
+                EXIT;
+                return 0;
+        }
+
+        if (list_empty(&inode->i_dentry)) {
+                CERROR("No alias for inode %d\n", (int) inode->i_ino);
+                EXIT;
+                return -1;
+        }
+
+        de = list_entry(inode->i_dentry.next, struct dentry, d_alias);
+
+        fset = presto_fset(de);
+        if ( !fset ) {
+                CERROR("InterMezzo: no fileset in %s!\n", __FUNCTION__);
+                EXIT;
+                return -1;
+        }
+
+        if (presto_chk(de, PRESTO_DONT_JOURNAL)) {
+                EXIT;
+                return 0;
+        }
+
+        spin_lock(&fset->fset_permit_lock);
+        if (fset->fset_flags & FSET_HASPERMIT) {
+                if (fset->fset_permit_count > 0)
+                        fset->fset_permit_count--;
+                else
+                        CERROR("Put permit while permit count is 0, "
+                               "inode %ld!\n", inode->i_ino); 
+        } else {
+                fset->fset_permit_count = 0;
+                CERROR("InterMezzo: put permit while no permit, inode %ld, "
+                       "flags %x!\n", inode->i_ino, fset->fset_flags);
+        }
+
+        CDEBUG(D_INODE, "permit count now %d, inode %ld\n",
+               fset->fset_permit_count, inode->i_ino);
+
+        if (fset->fset_flags & FSET_PERMIT_WAITING &&
+            fset->fset_permit_count == 0) {
+                CDEBUG(D_INODE, "permit count now 0, ino %ld, wake sleepers\n",
+                       inode->i_ino);
+                wake_up_interruptible(&fset->fset_permit_queue);
+        }
+        spin_unlock(&fset->fset_permit_lock);
+
+        EXIT;
+        return 0;
+}
+
+void presto_getversion(struct presto_version * presto_version,
+                       struct inode * inode)
+{
+        presto_version->pv_mtime = (__u64)inode->i_mtime;
+        presto_version->pv_ctime = (__u64)inode->i_ctime;
+        presto_version->pv_size  = (__u64)inode->i_size;
+}
+
+
+/* If uuid is non-null, it is the uuid of the peer that's making the revocation
+ * request.  If it is null, this request was made locally, without external
+ * pressure to give up the permit.  This most often occurs when a client
+ * starts up.
+ *
+ * FIXME: this function needs to be refactored slightly once we start handling
+ * multiple clients.
+ */
+int izo_revoke_permit(struct dentry *dentry, __u8 uuid[16])
+{
+        struct presto_file_set *fset; 
+        DECLARE_WAITQUEUE(wait, current);
+        int minor, rc;
+
+        ENTRY;
+
+        minor = presto_i2m(dentry->d_inode);
+        if (minor < 0) {
+                EXIT;
+                return -ENODEV;
+        }
+
+        fset = presto_fset(dentry);
+        if (fset == NULL) {
+                EXIT;
+                return -ENODEV;
+        }
+
+        spin_lock(&fset->fset_permit_lock);
+        if (fset->fset_flags & FSET_PERMIT_WAITING) {
+                CERROR("InterMezzo: Two processes are waiting on the same permit--this not yet supported!  Aborting this particular permit request...\n");
+                EXIT;
+                spin_unlock(&fset->fset_permit_lock);
+                return -EINVAL;
+        }
+
+        if (fset->fset_permit_count == 0)
+                goto got_permit;
+
+        /* Something is still using this permit.  Mark that we're waiting for it
+         * and go to sleep. */
+        rc = izo_mark_fset(dentry, ~0, FSET_PERMIT_WAITING, NULL);
+        spin_unlock(&fset->fset_permit_lock);
+        if (rc < 0) {
+                EXIT;
+                return rc;
+        }
+
+        add_wait_queue(&fset->fset_permit_queue, &wait);
+        while (1) {
+                set_current_state(TASK_INTERRUPTIBLE);
+
+                spin_lock(&fset->fset_permit_lock);
+                if (fset->fset_permit_count == 0)
+                        break;
+                spin_unlock(&fset->fset_permit_lock);
+
+                if (signal_pending(current)) {
+                        /* FIXME: there must be a better thing to return... */
+                        remove_wait_queue(&fset->fset_permit_queue, &wait);
+                        EXIT;
+                        return -ERESTARTSYS;
+                }
+
+                /* FIXME: maybe there should be a timeout here. */
+
+                schedule();
+        }
+
+        remove_wait_queue(&fset->fset_permit_queue, &wait);
+ got_permit:
+        /* By this point fset->fset_permit_count is zero and we're holding the
+         * lock. */
+        CDEBUG(D_CACHE, "InterMezzo: releasing permit inode %ld\n",
+               dentry->d_inode->i_ino);
+
+        if (uuid != NULL) {
+                rc = izo_upc_revoke_permit(minor, fset->fset_name, uuid);
+                if (rc < 0) {
+                        spin_unlock(&fset->fset_permit_lock);
+                        EXIT;
+                        return rc;
+                }
+        }
+
+        izo_mark_fset(fset->fset_dentry, ~FSET_PERMIT_WAITING, 0, NULL);
+        izo_mark_fset(fset->fset_dentry, ~FSET_HASPERMIT, 0, NULL);
+        spin_unlock(&fset->fset_permit_lock);
+        EXIT;
+        return 0;
+}
+
+inline int presto_is_read_only(struct presto_file_set * fset)
+{
+        int minor, mask;
+        struct presto_cache *cache = fset->fset_cache;
+
+        minor= cache->cache_psdev->uc_minor;
+        mask= (ISLENTO(minor)? FSET_LENTO_RO : FSET_CLIENT_RO);
+        if ( fset->fset_flags & mask )
+                return 1;
+        mask= (ISLENTO(minor)? CACHE_LENTO_RO : CACHE_CLIENT_RO);
+        return  ((cache->cache_flags & mask)? 1 : 0);
+}
diff --git a/fs/intermezzo/psdev.c b/fs/intermezzo/psdev.c
new file mode 100644
index 00000000000000..6f73176619a053
--- /dev/null
+++ b/fs/intermezzo/psdev.c
@@ -0,0 +1,649 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ *              An implementation of a loadable kernel mode driver providing
+ *              multiple kernel/user space bidirectional communications links.
+ *
+ *              Author:         Alan Cox <alan@cymru.net>
+ *
+ *              This program is free software; you can redistribute it and/or
+ *              modify it under the terms of the GNU General Public License
+ *              version 2 as published by the Free Software Foundation.
+ *
+ *              Adapted to become the Linux 2.0 Coda pseudo device
+ *              Peter  Braam  <braam@maths.ox.ac.uk>
+ *              Michael Callahan <mjc@emmy.smith.edu>
+ *
+ *              Changes for Linux 2.1
+ *              Copyright (c) 1997 Carnegie-Mellon University
+ *
+ *              Redone again for InterMezzo
+ *              Copyright (c) 1998 Peter J. Braam
+ *              Copyright (c) 2000 Mountain View Data, Inc.
+ *              Copyright (c) 2000 Tacitus Systems, Inc.
+ *              Copyright (c) 2001 Cluster File Systems, Inc.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/sched.h>
+#include <linux/lp.h>
+#include <linux/slab.h>
+#include <linux/ioport.h>
+#include <linux/fcntl.h>
+#include <linux/delay.h>
+#include <linux/skbuff.h>
+#include <linux/proc_fs.h>
+#include <linux/vmalloc.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/poll.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/devfs_fs_kernel.h>
+#include <asm/io.h>
+#include <asm/segment.h>
+#include <asm/system.h>
+#include <asm/poll.h>
+#include <asm/uaccess.h>
+#include <linux/miscdevice.h>
+
+#include <linux/intermezzo_fs.h>
+#include <linux/intermezzo_psdev.h>
+
+
+#ifdef PRESTO_DEVEL
+int  presto_print_entry = 1;
+int  presto_debug = 4095;
+#else
+int  presto_print_entry = 0;
+int  presto_debug = 0;
+#endif
+
+/* Like inode.c (presto_sym_iops), the initializer is just to prevent
+   izo_channels from appearing as a COMMON symbol (and therefore
+   interfering with other modules that use the same variable name). */
+struct upc_channel izo_channels[MAX_CHANNEL] = {{0}};
+
+int izo_psdev_get_free_channel(void)
+{
+        int i, result = -1;
+        
+        for (i = 0 ; i < MAX_CHANNEL ; i++ ) {
+                if (list_empty(&(izo_channels[i].uc_cache_list))) { 
+                    result = i;
+                    break;
+                }
+        }
+        return result;
+}
+
+
+int izo_psdev_setpid(int minor)
+{
+        struct upc_channel *channel; 
+        if (minor < 0 || minor >= MAX_CHANNEL) { 
+                return -EINVAL;
+        }
+
+        channel = &(izo_channels[minor]); 
+        /*
+         * This ioctl is performed by each Lento that starts up
+         * and wants to do further communication with presto.
+         */
+        CDEBUG(D_PSDEV, "Setting current pid to %d channel %d\n", 
+               current->pid, minor);
+        channel->uc_pid = current->pid;
+        spin_lock(&channel->uc_lock); 
+        if ( !list_empty(&channel->uc_processing) ) {
+                struct list_head *lh;
+                struct upc_req *req;
+                CERROR("WARNING: setpid & processing not empty!\n");
+		list_for_each(lh, &channel->uc_processing) {
+                        req = list_entry(lh, struct upc_req, rq_chain);
+                        /* freeing of req and data is done by the sleeper */
+                        wake_up(&req->rq_sleep);
+                }
+        }
+        if ( !list_empty(&channel->uc_processing) ) {
+                CERROR("BAD: FAILDED TO CLEAN PROCESSING LIST!\n");
+        }
+        spin_unlock(&channel->uc_lock); 
+        EXIT;
+        return 0;
+}
+
+int izo_psdev_setchannel(struct file *file, int fd)
+{
+
+        struct file *psdev_file = fget(fd); 
+        struct presto_cache *cache = presto_get_cache(file->f_dentry->d_inode);
+
+        if (!psdev_file) { 
+                CERROR("%s: no psdev_file!\n", __FUNCTION__);
+                return -EINVAL;
+        }
+
+        if (!cache) { 
+                CERROR("%s: no cache!\n", __FUNCTION__);
+                fput(psdev_file); 
+                return -EINVAL;
+        } 
+
+        if (psdev_file->private_data) { 
+                CERROR("%s: channel already set!\n", __FUNCTION__);
+                fput(psdev_file); 
+                return -EINVAL;
+        }
+
+        psdev_file->private_data = cache->cache_psdev;
+        fput(psdev_file); 
+        EXIT; 
+        return 0; 
+}
+
+inline int presto_lento_up(int minor) 
+{
+        return izo_channels[minor].uc_pid;
+}
+
+static unsigned int presto_psdev_poll(struct file *file, poll_table * wait)
+ {
+        struct upc_channel *channel = (struct upc_channel *)file->private_data;
+        unsigned int mask = POLLOUT | POLLWRNORM;
+
+        /* ENTRY; this will flood you */
+        if ( ! channel ) { 
+                CERROR("%s: bad psdev file\n", __FUNCTION__);
+                return -EBADF;
+        }
+
+        poll_wait(file, &(channel->uc_waitq), wait);
+
+        spin_lock(&channel->uc_lock);
+        if (!list_empty(&channel->uc_pending)) {
+                CDEBUG(D_PSDEV, "Non-empty pending list.\n");
+                mask |= POLLIN | POLLRDNORM;
+        }
+        spin_unlock(&channel->uc_lock);
+
+        /* EXIT; will flood you */
+        return mask;
+}
+
+/*
+ *      Receive a message written by Lento to the psdev
+ */
+static ssize_t presto_psdev_write(struct file *file, const char *buf,
+                                  size_t count, loff_t *off)
+{
+        struct upc_channel *channel = (struct upc_channel *)file->private_data;
+        struct upc_req *req = NULL;
+        struct upc_req *tmp;
+        struct list_head *lh;
+        struct izo_upcall_resp hdr;
+        int error;
+
+        if ( ! channel ) { 
+                CERROR("%s: bad psdev file\n", __FUNCTION__);
+                return -EBADF;
+        }
+
+        /* Peek at the opcode, uniquefier */
+        if ( count < sizeof(hdr) ) {
+              CERROR("presto_psdev_write: Lento didn't write full hdr.\n");
+                return -EINVAL;
+        }
+
+        error = copy_from_user(&hdr, buf, sizeof(hdr));
+        if ( error )
+                return -EFAULT;
+
+        CDEBUG(D_PSDEV, "(process,opc,uniq)=(%d,%d,%d)\n",
+               current->pid, hdr.opcode, hdr.unique);
+
+        spin_lock(&channel->uc_lock); 
+        /* Look for the message on the processing queue. */
+	list_for_each(lh, &channel->uc_processing) {
+                tmp = list_entry(lh, struct upc_req , rq_chain);
+                if (tmp->rq_unique == hdr.unique) {
+                        req = tmp;
+                        /* unlink here: keeps search length minimal */
+                        list_del_init(&req->rq_chain);
+                        CDEBUG(D_PSDEV,"Eureka opc %d uniq %d!\n",
+                               hdr.opcode, hdr.unique);
+                        break;
+                }
+        }
+        spin_unlock(&channel->uc_lock); 
+        if (!req) {
+                CERROR("psdev_write: msg (%d, %d) not found\n",
+                       hdr.opcode, hdr.unique);
+                return(-ESRCH);
+        }
+
+        /* move data into response buffer. */
+        if (req->rq_bufsize < count) {
+                CERROR("psdev_write: too much cnt: %d, cnt: %d, "
+                       "opc: %d, uniq: %d.\n",
+                       req->rq_bufsize, count, hdr.opcode, hdr.unique);
+                count = req->rq_bufsize; /* don't have more space! */
+        }
+        error = copy_from_user(req->rq_data, buf, count);
+        if ( error )
+                return -EFAULT;
+
+        /* adjust outsize: good upcalls can be aware of this */
+        req->rq_rep_size = count;
+        req->rq_flags |= REQ_WRITE;
+
+        wake_up(&req->rq_sleep);
+        return(count);
+}
+
+/*
+ *      Read a message from the kernel to Lento
+ */
+static ssize_t presto_psdev_read(struct file * file, char * buf,
+                                 size_t count, loff_t *off)
+{
+        struct upc_channel *channel = (struct upc_channel *)file->private_data;
+        struct upc_req *req;
+        int result = count;
+
+        if ( ! channel ) { 
+                CERROR("%s: bad psdev file\n", __FUNCTION__);
+                return -EBADF;
+        }
+
+        spin_lock(&channel->uc_lock); 
+        if (list_empty(&(channel->uc_pending))) {
+                CDEBUG(D_UPCALL, "Empty pending list in read, not good\n");
+                spin_unlock(&channel->uc_lock); 
+                return -EINVAL;
+        }
+        req = list_entry((channel->uc_pending.next), struct upc_req, rq_chain);
+        list_del(&(req->rq_chain));
+        if (! (req->rq_flags & REQ_ASYNC) ) {
+                list_add(&(req->rq_chain), channel->uc_processing.prev);
+        }
+        spin_unlock(&channel->uc_lock); 
+
+        req->rq_flags |= REQ_READ;
+
+        /* Move the input args into userspace */
+        CDEBUG(D_PSDEV, "\n");
+        if (req->rq_bufsize <= count) {
+                result = req->rq_bufsize;
+        }
+
+        if (count < req->rq_bufsize) {
+                CERROR ("psdev_read: buffer too small, read %d of %d bytes\n",
+                        count, req->rq_bufsize);
+        }
+
+        if ( copy_to_user(buf, req->rq_data, result) ) {
+                BUG();
+                return -EFAULT;
+        }
+
+        /* If request was asynchronous don't enqueue, but free */
+        if (req->rq_flags & REQ_ASYNC) {
+                CDEBUG(D_PSDEV, "psdev_read: async msg (%d, %d), result %d\n",
+                       req->rq_opcode, req->rq_unique, result);
+                PRESTO_FREE(req->rq_data, req->rq_bufsize);
+                PRESTO_FREE(req, sizeof(*req));
+                return result;
+        }
+
+        return result;
+}
+
+
+static int presto_psdev_open(struct inode * inode, struct file * file)
+{
+        ENTRY;
+
+        file->private_data = NULL;  
+
+        MOD_INC_USE_COUNT;
+
+        CDEBUG(D_PSDEV, "Psdev_open: caller: %d, flags: %d\n", current->pid, file->f_flags);
+
+        EXIT;
+        return 0;
+}
+
+
+
+static int presto_psdev_release(struct inode * inode, struct file * file)
+{
+        struct upc_channel *channel = (struct upc_channel *)file->private_data;
+        struct upc_req *req;
+        struct list_head *lh;
+        ENTRY;
+
+        if ( ! channel ) { 
+                CERROR("%s: bad psdev file\n", __FUNCTION__);
+                return -EBADF;
+        }
+
+        MOD_DEC_USE_COUNT;
+        CDEBUG(D_PSDEV, "Lento: pid %d\n", current->pid);
+        channel->uc_pid = 0;
+
+        /* Wake up clients so they can return. */
+        CDEBUG(D_PSDEV, "Wake up clients sleeping for pending.\n");
+        spin_lock(&channel->uc_lock); 
+	list_for_each(lh, &channel->uc_pending) {
+                req = list_entry(lh, struct upc_req, rq_chain);
+
+                /* Async requests stay around for a new lento */
+                if (req->rq_flags & REQ_ASYNC) {
+                        continue;
+                }
+                /* the sleeper will free the req and data */
+                req->rq_flags |= REQ_DEAD; 
+                wake_up(&req->rq_sleep);
+        }
+
+        CDEBUG(D_PSDEV, "Wake up clients sleeping for processing\n");
+	list_for_each(lh, &channel->uc_processing) {
+                req = list_entry(lh, struct upc_req, rq_chain);
+                /* freeing of req and data is done by the sleeper */
+                req->rq_flags |= REQ_DEAD; 
+                wake_up(&req->rq_sleep);
+        }
+        spin_unlock(&channel->uc_lock); 
+        CDEBUG(D_PSDEV, "Done.\n");
+
+        EXIT;
+        return 0;
+}
+
+static struct file_operations presto_psdev_fops = {
+        .read    = presto_psdev_read,
+        .write   = presto_psdev_write,
+        .poll    = presto_psdev_poll,
+        .open    = presto_psdev_open,
+        .release = presto_psdev_release
+};
+
+/* modules setup */
+static struct miscdevice intermezzo_psdev = {
+        INTERMEZZO_MINOR,
+        "intermezzo",
+        &presto_psdev_fops
+};
+
+int  presto_psdev_init(void)
+{
+        int i;
+        int err; 
+
+        if ( (err = misc_register(&intermezzo_psdev)) ) { 
+                CERROR("%s: cannot register %d err %d\n", 
+                       __FUNCTION__, INTERMEZZO_MINOR, err);
+                return -EIO;
+        }
+
+        memset(&izo_channels, 0, sizeof(izo_channels));
+        for ( i = 0 ; i < MAX_CHANNEL ; i++ ) {
+                struct upc_channel *channel = &(izo_channels[i]);
+                INIT_LIST_HEAD(&channel->uc_pending);
+                INIT_LIST_HEAD(&channel->uc_processing);
+                INIT_LIST_HEAD(&channel->uc_cache_list);
+                init_waitqueue_head(&channel->uc_waitq);
+                channel->uc_lock = SPIN_LOCK_UNLOCKED;
+                channel->uc_hard = 0;
+                channel->uc_no_filter = 0;
+                channel->uc_no_journal = 0;
+                channel->uc_no_upcall = 0;
+                channel->uc_timeout = 30;
+                channel->uc_errorval = 0;
+                channel->uc_minor = i;
+        }
+        return 0;
+}
+
+void presto_psdev_cleanup(void)
+{
+        int i;
+
+        misc_deregister(&intermezzo_psdev);
+
+        for ( i = 0 ; i < MAX_CHANNEL ; i++ ) {
+                struct upc_channel *channel = &(izo_channels[i]);
+                struct list_head *lh, *next;
+
+                spin_lock(&channel->uc_lock); 
+                if ( ! list_empty(&channel->uc_pending)) { 
+                        CERROR("Weird, tell Peter: module cleanup and pending list not empty dev %d\n", i);
+                }
+                if ( ! list_empty(&channel->uc_processing)) { 
+                        CERROR("Weird, tell Peter: module cleanup and processing list not empty dev %d\n", i);
+                }
+                if ( ! list_empty(&channel->uc_cache_list)) { 
+                        CERROR("Weird, tell Peter: module cleanup and cache listnot empty dev %d\n", i);
+                }
+		list_for_each_safe(lh, next, &channel->uc_pending) {
+                        struct upc_req *req;
+
+                        req = list_entry(lh, struct upc_req, rq_chain);
+                        if ( req->rq_flags & REQ_ASYNC ) {
+                                list_del(&(req->rq_chain));
+                                CDEBUG(D_UPCALL, "free pending upcall type %d\n",
+                                       req->rq_opcode);
+                                PRESTO_FREE(req->rq_data, req->rq_bufsize);
+                                PRESTO_FREE(req, sizeof(struct upc_req));
+                        } else {
+                                req->rq_flags |= REQ_DEAD; 
+                                wake_up(&req->rq_sleep);
+                        }
+                }
+		list_for_each(lh, &channel->uc_processing) {
+                        struct upc_req *req;
+                        req = list_entry(lh, struct upc_req, rq_chain);
+                        list_del(&(req->rq_chain));
+                        req->rq_flags |= REQ_DEAD; 
+                        wake_up(&req->rq_sleep);
+                }
+                spin_unlock(&channel->uc_lock); 
+        }
+}
+
+/*
+ * lento_upcall and lento_downcall routines
+ */
+static inline unsigned long lento_waitfor_upcall
+            (struct upc_channel *channel, struct upc_req *req, int minor)
+{
+        DECLARE_WAITQUEUE(wait, current);
+        unsigned long posttime;
+
+        req->rq_posttime = posttime = jiffies;
+
+        add_wait_queue(&req->rq_sleep, &wait);
+        for (;;) {
+                if ( izo_channels[minor].uc_hard == 0 )
+                        set_current_state(TASK_INTERRUPTIBLE);
+                else
+                        set_current_state(TASK_UNINTERRUPTIBLE);
+
+                /* got a reply */
+                if ( req->rq_flags & (REQ_WRITE | REQ_DEAD) )
+                        break;
+
+                /* these cases only apply when TASK_INTERRUPTIBLE */ 
+                if ( !izo_channels[minor].uc_hard && signal_pending(current) ) {
+                        /* if this process really wants to die, let it go */
+                        if (sigismember(&(current->pending.signal), SIGKILL)||
+                            sigismember(&(current->pending.signal), SIGINT) )
+                                break;
+                        /* signal is present: after timeout always return
+                           really smart idea, probably useless ... */
+                        if ( time_after(jiffies, req->rq_posttime +
+                             izo_channels[minor].uc_timeout * HZ) )
+                                break;
+                }
+                schedule();
+        }
+
+        spin_lock(&channel->uc_lock);
+        list_del_init(&req->rq_chain); 
+        spin_unlock(&channel->uc_lock);
+        remove_wait_queue(&req->rq_sleep, &wait);
+        set_current_state(TASK_RUNNING);
+
+        CDEBUG(D_SPECIAL, "posttime: %ld, returned: %ld\n",
+               posttime, jiffies-posttime);
+        return  (jiffies - posttime);
+}
+
+/*
+ * lento_upcall will return an error in the case of
+ * failed communication with Lento _or_ will peek at Lento
+ * reply and return Lento's error.
+ *
+ * As lento has 2 types of errors, normal errors (positive) and internal
+ * errors (negative), normal errors are negated, while internal errors
+ * are all mapped to -EINTR, while showing a nice warning message. (jh)
+ *
+ * lento_upcall will always free buffer, either directly, when an upcall
+ * is read (in presto_psdev_read), when the filesystem is unmounted, or
+ * when the module is unloaded.
+ */
+int izo_upc_upcall(int minor, int *size, struct izo_upcall_hdr *buffer, 
+                   int async)
+{
+        unsigned long runtime;
+        struct upc_channel *channel;
+        struct izo_upcall_resp *out;
+        struct upc_req *req;
+        int error = 0;
+
+        ENTRY;
+        channel = &(izo_channels[minor]);
+
+        if (channel->uc_no_upcall) {
+                EXIT;
+                goto exit_buf;
+        }
+        if (!channel->uc_pid && !async) {
+                EXIT;
+                error = -ENXIO;
+                goto exit_buf;
+        }
+
+        /* Format the request message. */
+        PRESTO_ALLOC(req, sizeof(struct upc_req));
+        if ( !req ) {
+                EXIT;
+                error = -ENOMEM;
+                goto exit_buf;
+        }
+        req->rq_data = (void *)buffer;
+        req->rq_flags = 0;
+        req->rq_bufsize = *size;
+        req->rq_rep_size = 0;
+        req->rq_opcode = buffer->u_opc;
+        req->rq_unique = ++channel->uc_seq;
+        init_waitqueue_head(&req->rq_sleep);
+
+        /* Fill in the common input args. */
+        buffer->u_uniq = req->rq_unique;
+        buffer->u_async = async;
+
+        /* Remove potential datarace possibility*/
+        if ( async ) 
+                req->rq_flags = REQ_ASYNC;
+
+        spin_lock(&channel->uc_lock); 
+        /* Append msg to pending queue and poke Lento. */
+        list_add(&req->rq_chain, channel->uc_pending.prev);
+        spin_unlock(&channel->uc_lock); 
+        CDEBUG(D_UPCALL,
+               "Proc %d waking Lento %d for(opc,uniq) =(%d,%d) msg at %p.\n",
+               current->pid, channel->uc_pid, req->rq_opcode,
+               req->rq_unique, req);
+        wake_up_interruptible(&channel->uc_waitq);
+
+        if ( async ) {
+                /* req, rq_data are freed in presto_psdev_read for async */
+                /* req->rq_flags = REQ_ASYNC;*/
+                EXIT;
+                return 0;
+        }
+
+        /* We can be interrupted while we wait for Lento to process
+         * our request.  If the interrupt occurs before Lento has read
+         * the request, we dequeue and return. If it occurs after the
+         * read but before the reply, we dequeue, send a signal
+         * message, and return. If it occurs after the reply we ignore
+         * it. In no case do we want to restart the syscall.  If it
+         * was interrupted by a lento shutdown (psdev_close), return
+         * ENODEV.  */
+
+        /* Go to sleep.  Wake up on signals only after the timeout. */
+        runtime = lento_waitfor_upcall(channel, req, minor);
+
+        CDEBUG(D_TIMING, "opc: %d time: %ld uniq: %d size: %d\n",
+               req->rq_opcode, jiffies - req->rq_posttime,
+               req->rq_unique, req->rq_rep_size);
+        CDEBUG(D_UPCALL,
+               "..process %d woken up by Lento for req at 0x%x, data at %x\n",
+               current->pid, (int)req, (int)req->rq_data);
+
+        if (channel->uc_pid) {      /* i.e. Lento is still alive */
+          /* Op went through, interrupt or not we go on */
+            if (req->rq_flags & REQ_WRITE) {
+                    out = (struct izo_upcall_resp *)req->rq_data;
+                    /* here we map positive Lento errors to kernel errors */
+                    if ( out->result < 0 ) {
+                            CERROR("Tell Peter: Lento returns negative error %d, for oc %d!\n",
+                                   out->result, out->opcode);
+                          out->result = EINVAL;
+                    }
+                    error = -out->result;
+                    CDEBUG(D_UPCALL, "upcall: (u,o,r) (%d, %d, %d) out at %p\n",
+                           out->unique, out->opcode, out->result, out);
+                    *size = req->rq_rep_size;
+                    EXIT;
+                    goto exit_req;
+            }
+            /* Interrupted before lento read it. */
+            if ( !(req->rq_flags & REQ_READ) && signal_pending(current)) {
+                    CDEBUG(D_UPCALL,
+                           "Interrupt before read: (op,un)=(%d,%d), flags %x\n",
+                           req->rq_opcode, req->rq_unique, req->rq_flags);
+                    /* perhaps the best way to convince the app to give up? */
+                    error = -EINTR;
+                    EXIT;
+                    goto exit_req;
+            }
+
+            /* interrupted after Lento did its read, send signal */
+            if ( (req->rq_flags & REQ_READ) && signal_pending(current) ) {
+                    CDEBUG(D_UPCALL,"Interrupt after read: op = %d.%d, flags = %x\n",
+                           req->rq_opcode, req->rq_unique, req->rq_flags);
+
+                    error = -EINTR;
+            } else {
+                  CERROR("Lento: Strange interruption - tell Peter.\n");
+                    error = -EINTR;
+            }
+        } else {        /* If lento died i.e. !UC_OPEN(channel) */
+                CERROR("lento_upcall: Lento dead on (op,un) (%d.%d) flags %d\n",
+                       req->rq_opcode, req->rq_unique, req->rq_flags);
+                error = -ENODEV;
+        }
+
+exit_req:
+        PRESTO_FREE(req, sizeof(struct upc_req));
+exit_buf:
+        PRESTO_FREE(buffer,*size);
+        return error;
+}
diff --git a/fs/intermezzo/replicator.c b/fs/intermezzo/replicator.c
new file mode 100644
index 00000000000000..cc4cfae2f638be
--- /dev/null
+++ b/fs/intermezzo/replicator.c
@@ -0,0 +1,288 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ * Copyright (C) 2001 Cluster File Systems, Inc. <braam@clusterfs.com>
+ * Copyright (C) 2001 Tacit Networks, Inc. <phil@off.net>
+ *
+ *   This file is part of InterMezzo, http://www.inter-mezzo.org.
+ *
+ *   InterMezzo is free software; you can redistribute it and/or
+ *   modify it under the terms of version 2 of the GNU General Public
+ *   License as published by the Free Software Foundation.
+ *
+ *   InterMezzo is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with InterMezzo; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Manage RCVD records for clients in the kernel
+ *
+ */
+
+#define __NO_VERSION__
+#include <linux/module.h>
+#include <stdarg.h>
+#include <asm/uaccess.h>
+
+#include <linux/errno.h>
+
+#include <linux/intermezzo_fs.h>
+
+/*
+ * this file contains a hash table of replicators/clients for a
+ * fileset. It allows fast lookup and update of reintegration status
+ */
+
+struct izo_offset_rec {
+	struct list_head or_list;
+	char             or_uuid[16];
+	loff_t           or_offset;
+};
+
+#define RCACHE_BITS 8
+#define RCACHE_SIZE (1 << RCACHE_BITS)
+#define RCACHE_MASK (RCACHE_SIZE - 1)
+
+static struct list_head *
+izo_rep_cache(void)
+{
+	int i;
+	struct list_head *cache;
+	PRESTO_ALLOC(cache, sizeof(struct list_head) * RCACHE_SIZE);
+	if (cache == NULL) {
+		CERROR("intermezzo-fatal: no memory for replicator cache\n");
+                return NULL;
+	}
+	memset(cache, 0, sizeof(struct list_head) * RCACHE_SIZE);
+	for (i = 0; i < RCACHE_SIZE; i++)
+		INIT_LIST_HEAD(&cache[i]);
+
+	return cache;
+}
+
+static struct list_head *
+izo_rep_hash(struct list_head *cache, char *uuid)
+{
+        return &cache[(RCACHE_MASK & uuid[1])];
+}
+
+void
+izo_rep_cache_clean(struct presto_file_set *fset)
+{
+	int i;
+	struct list_head *bucket;
+	struct list_head *tmp;
+
+        if (fset->fset_clients == NULL)
+		return;
+        for (i = 0; i < RCACHE_SIZE; i++) {
+
+				list_for_each_safe(tmp,bucket,&fset->fset_clients[i])
+				{
+						struct izo_offset_rec *offrec;
+						list_del(tmp);
+						offrec = list_entry(tmp, struct izo_offset_rec,or_list);
+						PRESTO_FREE(offrec, sizeof(struct izo_offset_rec)); 
+				}
+		}
+		PRESTO_FREE(fset->fset_clients,sizeof(struct list_head) * RCACHE_SIZE);
+}
+
+struct izo_offset_rec *
+izo_rep_cache_find(struct presto_file_set *fset, char *uuid)
+{
+	struct list_head *tmp, *buck = izo_rep_hash(fset->fset_clients, uuid);
+        struct izo_offset_rec *rec = NULL;
+
+	list_for_each(tmp, buck) {
+		rec = list_entry(tmp, struct izo_offset_rec, or_list);
+                if ( memcmp(rec->or_uuid, uuid, sizeof(rec->or_uuid)) == 0 )
+			return rec;
+	}
+
+	return NULL;
+}
+
+static int
+izo_rep_cache_add(struct presto_file_set *fset, struct izo_rcvd_rec *rec,
+                  loff_t offset)
+{
+        struct izo_offset_rec *offrec;
+
+        if (izo_rep_cache_find(fset, rec->lr_uuid)) {
+                CERROR("izo: duplicate client entry %s off %Ld\n",
+                       fset->fset_name, offset);
+                return -EINVAL;
+        }
+
+        PRESTO_ALLOC(offrec, sizeof(*offrec));
+        if (offrec == NULL) {
+                CERROR("izo: cannot allocate offrec\n");
+                return -ENOMEM;
+        }
+
+        memcpy(offrec->or_uuid, rec->lr_uuid, sizeof(rec->lr_uuid));
+        offrec->or_offset = offset;
+
+        list_add(&offrec->or_list,
+                 izo_rep_hash(fset->fset_clients, rec->lr_uuid));
+        return 0;
+}
+
+int
+izo_rep_cache_init(struct presto_file_set *fset)
+{
+	struct izo_rcvd_rec rec;
+        loff_t offset = 0, last_offset = 0;
+
+	fset->fset_clients = izo_rep_cache();
+        if (fset->fset_clients == NULL) {
+		CERROR("Error initializing client cache\n");
+		return -ENOMEM;
+	}
+
+        while ( presto_fread(fset->fset_rcvd.fd_file, (char *)&rec,
+                             sizeof(rec), &offset) == sizeof(rec) ) {
+                int rc;
+
+                if ((rc = izo_rep_cache_add(fset, &rec, last_offset)) < 0) {
+			izo_rep_cache_clean(fset);
+			return rc;
+		}
+
+                last_offset = offset;
+	}
+
+	return 0;
+}
+
+/*
+ * Return local last_rcvd record for the client. Update or create 
+ * if necessary.
+ *
+ * XXX: After this call, any -EINVAL from izo_rcvd_get is a real error.
+ */
+int
+izo_repstatus(struct presto_file_set *fset,  __u64 client_kmlsize, 
+              struct izo_rcvd_rec *lr_client, struct izo_rcvd_rec *lr_server)
+{
+        int rc;
+        rc = izo_rcvd_get(lr_server, fset, lr_client->lr_uuid);
+        if (rc < 0 && rc != -EINVAL) {
+                return rc;
+        }
+
+        /* client is new or has been reset. */
+        if (rc < 0 || (client_kmlsize == 0 && lr_client->lr_remote_offset == 0)) {
+                memset(lr_server, 0, sizeof(*lr_server));
+                memcpy(lr_server->lr_uuid, lr_client->lr_uuid, sizeof(lr_server->lr_uuid));
+                rc = izo_rcvd_write(fset, lr_server);
+                if (rc < 0)
+                        return rc;
+        }
+
+        /* update intersync */
+        rc = izo_upc_repstatus(presto_f2m(fset), fset->fset_name, lr_server);
+        return rc;
+}
+
+loff_t
+izo_rcvd_get(struct izo_rcvd_rec *rec, struct presto_file_set *fset, char *uuid)
+{
+        struct izo_offset_rec *offrec;
+        struct izo_rcvd_rec tmprec;
+        loff_t offset;
+
+        offrec = izo_rep_cache_find(fset, uuid);
+        if (offrec == NULL) {
+                CDEBUG(D_SPECIAL, "izo_get_rcvd: uuid not in hash.\n");
+                return -EINVAL;
+        }
+        offset = offrec->or_offset;
+
+        if (rec == NULL)
+                return offset;
+
+        if (presto_fread(fset->fset_rcvd.fd_file, (char *)&tmprec,
+                         sizeof(tmprec), &offset) != sizeof(tmprec)) {
+                CERROR("izo_get_rcvd: Unable to read from last_rcvd file offset "
+                       "%Lu\n", offset);
+                return -EIO;
+        }
+
+        memcpy(rec->lr_uuid, tmprec.lr_uuid, sizeof(tmprec.lr_uuid));
+        rec->lr_remote_recno = le64_to_cpu(tmprec.lr_remote_recno);
+        rec->lr_remote_offset = le64_to_cpu(tmprec.lr_remote_offset);
+        rec->lr_local_recno = le64_to_cpu(tmprec.lr_local_recno);
+        rec->lr_local_offset = le64_to_cpu(tmprec.lr_local_offset);
+        rec->lr_last_ctime = le64_to_cpu(tmprec.lr_last_ctime);
+
+        return offrec->or_offset;
+}
+
+/* Try to lookup the UUID in the hash.  Insert it if it isn't found.  Write the
+ * data to the file.
+ *
+ * Returns the offset of the beginning of the record in the last_rcvd file. */
+loff_t
+izo_rcvd_write(struct presto_file_set *fset, struct izo_rcvd_rec *rec)
+{
+        struct izo_offset_rec *offrec;
+        loff_t offset, rc;
+
+        ENTRY;
+
+        offrec = izo_rep_cache_find(fset, rec->lr_uuid);
+        if (offrec == NULL) {
+                /* I don't think it should be possible for an entry to be not in
+                 * the hash table without also having an invalid offset, but we
+                 * handle it gracefully regardless. */
+                write_lock(&fset->fset_rcvd.fd_lock);
+                offset = fset->fset_rcvd.fd_offset;
+                fset->fset_rcvd.fd_offset += sizeof(*rec);
+                write_unlock(&fset->fset_rcvd.fd_lock);
+
+                rc = izo_rep_cache_add(fset, rec, offset);
+                if (rc < 0) {
+                        EXIT;
+                        return rc;
+                }
+        } else
+                offset = offrec->or_offset;
+        
+
+        rc = presto_fwrite(fset->fset_rcvd.fd_file, (char *)rec, sizeof(*rec),
+                           &offset);
+        if (rc == sizeof(*rec))
+                /* presto_fwrite() advances 'offset' */
+                rc = offset - sizeof(*rec);
+
+        EXIT;
+        return rc;
+}
+
+loff_t
+izo_rcvd_upd_remote(struct presto_file_set *fset, char * uuid,  __u64 remote_recno, 
+                    __u64 remote_offset)
+{
+        struct izo_rcvd_rec rec;
+        
+        loff_t rc;
+
+        ENTRY;
+        rc = izo_rcvd_get(&rec, fset, uuid);
+        if (rc < 0)
+                return rc;
+        rec.lr_remote_recno = remote_recno;
+        rec.lr_remote_offset = remote_offset;
+
+        rc = izo_rcvd_write(fset, &rec);
+        EXIT;
+        if (rc < 0)
+                return rc;
+        return 0;
+}
diff --git a/fs/intermezzo/super.c b/fs/intermezzo/super.c
new file mode 100644
index 00000000000000..366a07df8d9149
--- /dev/null
+++ b/fs/intermezzo/super.c
@@ -0,0 +1,406 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ *  Copyright (C) 1998 Peter J. Braam <braam@clusterfs.com>
+ *  Copyright (C) 2000 Stelias Computing, Inc.
+ *  Copyright (C) 2000 Red Hat, Inc.
+ *
+ *   This file is part of InterMezzo, http://www.inter-mezzo.org.
+ *
+ *   InterMezzo is free software; you can redistribute it and/or
+ *   modify it under the terms of version 2 of the GNU General Public
+ *   License as published by the Free Software Foundation.
+ *
+ *   InterMezzo is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with InterMezzo; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *  presto's super.c
+ */
+
+static char rcsid[] __attribute ((unused)) = "$Id: super.c,v 1.42 2003/09/30 15:51:52 sunsetyang Exp $";
+#define INTERMEZZO_VERSION "$Revision: 1.42 $"
+
+#include <stdarg.h>
+
+#include <asm/bitops.h>
+#include <asm/uaccess.h>
+#include <asm/system.h>
+
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/ext2_fs.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/sched.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <linux/locks.h>
+#include <linux/blkdev.h>
+#include <linux/init.h>
+#include <linux/devfs_fs_kernel.h>
+#define __NO_VERSION__
+#include <linux/module.h>
+
+#include <linux/intermezzo_fs.h>
+#include <linux/intermezzo_psdev.h>
+
+#ifdef PRESTO_DEBUG
+long presto_vmemory = 0;
+long presto_kmemory = 0;
+#endif
+
+/* returns an allocated string, copied out from data if opt is found */
+static char *opt_read(const char *opt, char *data)
+{
+        char *value;
+        char *retval;
+
+        CDEBUG(D_SUPER, "option: %s, data %s\n", opt, data);
+        if ( strncmp(opt, data, strlen(opt)) )
+                return NULL;
+
+        if ( (value = strchr(data, '=')) == NULL )
+                return NULL;
+
+        value++;
+        PRESTO_ALLOC(retval, strlen(value) + 1);
+        if ( !retval ) {
+                CERROR("InterMezzo: Out of memory!\n");
+                return NULL;
+        }
+
+        strcpy(retval, value);
+        CDEBUG(D_SUPER, "Assigned option: %s, value %s\n", opt, retval);
+        return retval;
+}
+
+static void opt_store(char **dst, char *opt)
+{
+        if (!dst) 
+                CERROR("intermezzo: store_opt, error dst == NULL\n"); 
+
+        if (*dst)
+                PRESTO_FREE(*dst, strlen(*dst) + 1);
+        *dst = opt;
+}
+
+static void opt_set_default(char **dst, char *defval)
+{
+        if (!dst) 
+                CERROR("intermezzo: store_opt, error dst == NULL\n"); 
+
+        if (*dst)
+                PRESTO_FREE(*dst, strlen(*dst) + 1);
+        if (defval) {
+                char *def_alloced; 
+                PRESTO_ALLOC(def_alloced, strlen(defval)+1);
+                if (!def_alloced) {
+                        CERROR("InterMezzo: Out of memory!\n");
+                        return ;
+                }
+                strcpy(def_alloced, defval);
+                *dst = def_alloced; 
+        }
+}
+
+
+/* Find the options for InterMezzo in "options", saving them into the
+ * passed pointers.  If the pointer is null, the option is discarded.
+ * Copy out all non-InterMezzo options into cache_data (to be passed
+ * to the read_super operation of the cache).  The return value will
+ * be a pointer to the end of the cache_data.
+ */
+static char *presto_options(struct super_block *sb, 
+                            char *options, char *cache_data,
+                            char **cache_type, char **fileset,
+                            char **channel)
+{
+        char *this_char;
+        char *cache_data_end = cache_data;
+
+        /* set the defaults */ 
+        if (strcmp(sb->s_type->name, "intermezzo") == 0)
+            opt_set_default(cache_type, "ext3"); 
+        else 
+            opt_set_default(cache_type, "tmpfs"); 
+            
+        if (!options || !cache_data)
+                return cache_data_end;
+
+
+        CDEBUG(D_SUPER, "parsing options\n");
+        for (this_char = strtok (options, ",");
+             this_char != NULL;
+             this_char = strtok (NULL, ",")) {
+                char *opt;
+                CDEBUG(D_SUPER, "this_char %s\n", this_char);
+
+                if ( (opt = opt_read("fileset", this_char)) ) {
+                        opt_store(fileset, opt);
+                        continue;
+                }
+                if ( (opt = opt_read("cache_type", this_char)) ) {
+                        opt_store(cache_type, opt);
+                        continue;
+                }
+                if ( (opt = opt_read("channel", this_char)) ) {
+                        opt_store(channel, opt);
+                        continue;
+                }
+
+                cache_data_end += 
+                        sprintf(cache_data_end, "%s%s",
+                                cache_data_end != cache_data ? ",":"", 
+                                this_char);
+        }
+
+        return cache_data_end;
+}
+
+static int presto_set_channel(struct presto_cache *cache, char *channel)
+{
+        int minor; 
+
+        ENTRY;
+        if (!channel) {
+                minor = izo_psdev_get_free_channel();
+        } else {
+                minor = simple_strtoul(channel, NULL, 0); 
+				PRESTO_FREE(channel, strlen(channel) + 1);
+        }
+        if (minor < 0 || minor >= MAX_CHANNEL) { 
+                CERROR("all channels in use or channel too large %d\n", 
+                       minor);
+                return -EINVAL;
+        }
+        
+        cache->cache_psdev = &(izo_channels[minor]);
+        list_add(&cache->cache_channel_list, 
+                 &cache->cache_psdev->uc_cache_list); 
+
+        EXIT;
+        return minor;
+}
+
+/* We always need to remove the presto options before passing 
+   mount options to cache FS */
+struct super_block * presto_read_super(struct super_block * sb,
+                                       void * data, int silent)
+{
+        struct file_system_type *fstype;
+        struct presto_cache *cache = NULL;
+        char *cache_data = NULL;
+        char *cache_data_end;
+        char *cache_type = NULL;
+        char *fileset = NULL;
+        char *channel = NULL;
+        int err; 
+        unsigned int minor;
+
+        ENTRY;
+
+        /* reserve space for the cache's data */
+        PRESTO_ALLOC(cache_data, PAGE_SIZE);
+        if ( !cache_data ) {
+                CERROR("presto_read_super: Cannot allocate data page.\n");
+                EXIT;
+                goto out_err;
+        }
+
+        /* read and validate options */
+        cache_data_end = presto_options(sb, data, cache_data, &cache_type, 
+                                        &fileset, &channel);
+
+        /* was there anything for the cache filesystem in the data? */
+        if (cache_data_end == cache_data) {
+                PRESTO_FREE(cache_data, PAGE_SIZE);
+                cache_data = NULL;
+        } else {
+                CDEBUG(D_SUPER, "cache_data at %p is: %s\n", cache_data,
+                       cache_data);
+        }
+
+        /* set up the cache */
+        cache = presto_cache_init();
+        if ( !cache ) {
+                CERROR("presto_read_super: failure allocating cache.\n");
+                EXIT;
+                goto out_err;
+        }
+        cache->cache_type = cache_type;
+
+        /* link cache to channel */ 
+        minor = presto_set_channel(cache, channel);
+        if (minor < 0) { 
+                EXIT;
+                goto out_err;
+        }
+
+        CDEBUG(D_SUPER, "Presto: type=%s, fset=%s, dev= %d, flags %x\n",
+               cache_type, fileset?fileset:"NULL", minor, cache->cache_flags);
+
+        MOD_INC_USE_COUNT;
+
+        /* get the filter for the cache */
+        fstype = get_fs_type(cache_type);
+        cache->cache_filter = filter_get_filter_fs((const char *)cache_type); 
+        if ( !fstype || !cache->cache_filter) {
+                CERROR("Presto: unrecognized fs type or cache type\n");
+                MOD_DEC_USE_COUNT;
+                EXIT;
+                goto out_err;
+        }
+
+        /* can we in fact mount the cache */ 
+        if ((fstype->fs_flags & FS_REQUIRES_DEV) && !sb->s_bdev) {
+                CERROR("filesystem \"%s\" requires a valid block device\n",
+                                cache_type);
+                MOD_DEC_USE_COUNT;
+                EXIT;
+                goto out_err;
+        }
+
+        sb = fstype->read_super(sb, cache_data, silent);
+
+        /* this might have been freed above */
+        if (cache_data) {
+                PRESTO_FREE(cache_data, PAGE_SIZE);
+                cache_data = NULL;
+        }
+
+        if ( !sb ) {
+                CERROR("InterMezzo: cache mount failure.\n");
+                MOD_DEC_USE_COUNT;
+                EXIT;
+                goto out_err;
+        }
+
+        cache->cache_sb = sb;
+        cache->cache_root = dget(sb->s_root);
+
+        /* we now know the dev of the cache: hash the cache */
+        presto_cache_add(cache, sb->s_dev);
+        err = izo_prepare_fileset(sb->s_root, fileset); 
+
+        if (fileset)
+                PRESTO_FREE(fileset, strlen(fileset) + 1);
+
+        filter_setup_journal_ops(cache->cache_filter, cache->cache_type); 
+
+        /* make sure we have our own super operations: sb
+           still contains the cache operations */
+        filter_setup_super_ops(cache->cache_filter, sb->s_op, 
+                               &presto_super_ops);
+        sb->s_op = filter_c2usops(cache->cache_filter);
+
+        /* get izo directory operations: sb->s_root->d_inode exists now */
+        filter_setup_dir_ops(cache->cache_filter, sb->s_root->d_inode,
+                             &presto_dir_iops, &presto_dir_fops);
+        filter_setup_dentry_ops(cache->cache_filter, sb->s_root->d_op, 
+                                &presto_dentry_ops);
+        sb->s_root->d_inode->i_op = filter_c2udiops(cache->cache_filter);
+        sb->s_root->d_inode->i_fop = filter_c2udfops(cache->cache_filter);
+        sb->s_root->d_op = filter_c2udops(cache->cache_filter);
+
+        EXIT;
+        return sb;
+
+ out_err:
+        CDEBUG(D_SUPER, "out_err called\n");
+        if (cache)
+                PRESTO_FREE(cache, sizeof(struct presto_cache));
+        if (cache_data)
+                PRESTO_FREE(cache_data, PAGE_SIZE);
+        if (fileset)
+                PRESTO_FREE(fileset, strlen(fileset) + 1);
+        if (channel)
+                PRESTO_FREE(channel, strlen(channel) + 1);
+        if (cache_type)
+                PRESTO_FREE(cache_type, strlen(cache_type) + 1);
+
+        CDEBUG(D_MALLOC, "mount error exit: kmem %ld, vmem %ld\n",
+               presto_kmemory, presto_vmemory);
+        return NULL;
+}
+
+
+
+#ifdef PRESTO_DEVEL
+static DECLARE_FSTYPE(presto_fs_type, "izo", presto_read_super, FS_REQUIRES_DEV);
+static DECLARE_FSTYPE(vpresto_fs_type, "vintermezzo", presto_read_super, FS_LITTER);
+#else 
+static DECLARE_FSTYPE(vpresto_fs_type, "vintermezzo", presto_read_super, FS_LITTER);
+static DECLARE_FSTYPE(presto_fs_type, "intermezzo", presto_read_super, FS_REQUIRES_DEV);
+#endif
+
+
+
+int __init init_intermezzo_fs(void)
+{
+        int status;
+
+        printk(KERN_INFO "InterMezzo Kernel/Intersync communications " INTERMEZZO_VERSION
+               " info@clusterfs.com\n");
+
+        status = presto_psdev_init();
+        if ( status ) {
+                CERROR("Problem (%d) in init_intermezzo_psdev\n", status);
+                return status;
+        }
+
+        status = init_intermezzo_sysctl();
+        if (status) {
+                CERROR("presto: failed in init_intermezzo_sysctl!\n");
+        }
+
+        presto_cache_init_hash();
+
+        if (!presto_init_ddata_cache()) {
+                CERROR("presto out of memory!\n");
+                return -ENOMEM;
+        }
+
+        status = register_filesystem(&presto_fs_type);
+        if (status) {
+                CERROR("presto: failed in register_filesystem!\n");
+        }
+        status = register_filesystem(&vpresto_fs_type);
+        if (status) {
+                CERROR("vpresto: failed in register_filesystem!\n");
+        }
+        return status;
+}
+
+void __exit exit_intermezzo_fs(void)
+{
+        int err;
+
+        ENTRY;
+
+        if ( (err = unregister_filesystem(&presto_fs_type)) != 0 ) {
+                CERROR("presto: failed to unregister filesystem\n");
+        }
+        if ( (err = unregister_filesystem(&vpresto_fs_type)) != 0 ) {
+                CERROR("vpresto: failed to unregister filesystem\n");
+        }
+
+        presto_psdev_cleanup();
+        cleanup_intermezzo_sysctl();
+        presto_cleanup_ddata_cache();
+        CERROR("after cleanup: kmem %ld, vmem %ld\n",
+               presto_kmemory, presto_vmemory);
+}
+
+
+MODULE_AUTHOR("Cluster Filesystems Inc. <info@clusterfs.com>");
+MODULE_DESCRIPTION("InterMezzo Kernel/Intersync communications " INTERMEZZO_VERSION);
+MODULE_LICENSE("GPL");
+
+module_init(init_intermezzo_fs)
+module_exit(exit_intermezzo_fs)
diff --git a/fs/intermezzo/sysctl.c b/fs/intermezzo/sysctl.c
new file mode 100644
index 00000000000000..65b5bc8936c254
--- /dev/null
+++ b/fs/intermezzo/sysctl.c
@@ -0,0 +1,372 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ *  Copyright (C) 1999 Peter J. Braam <braam@clusterfs.com>
+ *
+ *   This file is part of InterMezzo, http://www.inter-mezzo.org.
+ *
+ *   InterMezzo is free software; you can redistribute it and/or
+ *   modify it under the terms of version 2 of the GNU General Public
+ *   License as published by the Free Software Foundation.
+ *
+ *   InterMezzo is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with InterMezzo; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *  Sysctrl entries for Intermezzo!
+ */
+
+#define __NO_VERSION__
+#include <linux/config.h> /* for CONFIG_PROC_FS */
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/sysctl.h>
+#include <linux/swapctl.h>
+#include <linux/proc_fs.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/stat.h>
+#include <linux/ctype.h>
+#include <linux/init.h>
+#include <asm/bitops.h>
+#include <asm/segment.h>
+#include <asm/uaccess.h>
+#include <linux/utsname.h>
+#include <linux/blk.h>
+
+
+#include <linux/intermezzo_fs.h>
+#include <linux/intermezzo_psdev.h>
+
+/* /proc entries */
+
+#ifdef CONFIG_PROC_FS
+struct proc_dir_entry *proc_fs_intermezzo;
+int intermezzo_mount_get_info( char * buffer, char ** start, off_t offset,
+			       int length)
+{
+	int len=0;
+
+	/* this works as long as we are below 1024 characters! */
+	*start = buffer + offset;
+	len -= offset;
+
+	if ( len < 0 )
+		return -EINVAL;
+
+	return len;
+}
+
+#endif
+
+
+/* SYSCTL below */
+
+static struct ctl_table_header *intermezzo_table_header = NULL;
+/* 0x100 to avoid any chance of collisions at any point in the tree with
+ * non-directories
+ */
+#define PSDEV_INTERMEZZO  (0x100)
+
+#define PSDEV_DEBUG	   1      /* control debugging */
+#define PSDEV_TRACE	   2      /* control enter/leave pattern */
+#define PSDEV_TIMEOUT      3      /* timeout on upcalls to become intrble */
+#define PSDEV_HARD         4      /* mount type "hard" or "soft" */
+#define PSDEV_NO_FILTER    5      /* controls presto_chk */
+#define PSDEV_NO_JOURNAL   6      /* controls presto_chk */
+#define PSDEV_NO_UPCALL    7      /* controls lento_upcall */
+#define PSDEV_ERRORVAL     8      /* controls presto_debug_fail_blkdev */
+#define PSDEV_EXCL_GID     9      /* which GID is ignored by presto */
+#define PSDEV_BYTES_TO_CLOSE 11   /* bytes to write before close */
+
+/* These are global presto control options */
+#define PRESTO_PRIMARY_CTLCNT 2
+static struct ctl_table presto_table[ PRESTO_PRIMARY_CTLCNT + MAX_CHANNEL + 1] =
+{
+	{PSDEV_DEBUG, "debug", &presto_debug, sizeof(int), 0644, NULL, &proc_dointvec},
+	{PSDEV_TRACE, "trace", &presto_print_entry, sizeof(int), 0644, NULL, &proc_dointvec},
+};
+
+/*
+ * Intalling the sysctl entries: strategy
+ * - have templates for each /proc/sys/intermezzo/ entry
+ *   such an entry exists for each /dev/presto
+ *    (proto_channel_entry)
+ * - have a template for the contents of such directories
+ *    (proto_psdev_table)
+ * - have the master table (presto_table)
+ *
+ * When installing, malloc, memcpy and fix up the pointers to point to
+ * the appropriate constants in izo_channels[your_minor]
+ */
+
+static ctl_table proto_psdev_table[] = {
+	{PSDEV_HARD, "hard", 0, sizeof(int), 0644, NULL, &proc_dointvec},
+	{PSDEV_NO_FILTER, "no_filter", 0, sizeof(int), 0644, NULL, &proc_dointvec},
+	{PSDEV_NO_JOURNAL, "no_journal", NULL, sizeof(int), 0644, NULL, &proc_dointvec},
+	{PSDEV_NO_UPCALL, "no_upcall", NULL, sizeof(int), 0644, NULL, &proc_dointvec},
+	{PSDEV_TIMEOUT, "timeout", NULL, sizeof(int), 0644, NULL, &proc_dointvec},
+#ifdef PRESTO_DEBUG
+	{PSDEV_ERRORVAL, "errorval", NULL, sizeof(int), 0644, NULL, &proc_dointvec},
+#endif
+	{ 0 }
+};
+
+static ctl_table proto_channel_entry = {
+	PSDEV_INTERMEZZO, 0,  NULL, 0, 0555, 0,
+};
+
+static ctl_table intermezzo_table[2] = {
+	{PSDEV_INTERMEZZO, "intermezzo",    NULL, 0, 0555, presto_table},
+	{0}
+};
+
+/* support for external setting and getting of opts. */
+/* particularly via ioctl. The Right way to do this is via sysctl,
+ * but that will have to wait until intermezzo gets its own nice set of
+ * sysctl IDs
+ */
+/* we made these separate as setting may in future be more restricted
+ * than getting
+ */
+#ifdef RON_MINNICH
+int dosetopt(int minor, struct psdev_opt *opt)
+{
+	int retval = 0;
+	int newval = opt->optval;
+
+	ENTRY;
+
+	switch(opt->optname) {
+
+	case PSDEV_TIMEOUT:
+		izo_channels[minor].uc_timeout = newval;
+		break;
+
+	case PSDEV_HARD:
+		izo_channels[minor].uc_hard = newval;
+		break;
+
+	case PSDEV_NO_FILTER:
+		izo_channels[minor].uc_no_filter = newval;
+		break;
+
+	case PSDEV_NO_JOURNAL:
+		izo_channels[minor].uc_no_journal = newval;
+		break;
+
+	case PSDEV_NO_UPCALL:
+		izo_channels[minor].uc_no_upcall = newval;
+		break;
+
+#ifdef PRESTO_DEBUG
+	case PSDEV_ERRORVAL: {
+		/* If we have a positive arg, set a breakpoint for that
+		 * value.  If we have a negative arg, make that device
+		 * read-only.  FIXME  It would be much better to only
+		 * allow setting the underlying device read-only for the
+		 * current presto cache.
+		 */
+		int errorval = izo_channels[minor].uc_errorval;
+		if (errorval < 0) {
+			if (newval == 0)
+				set_device_ro(-errorval, 0);
+			else
+				CERROR("device %s already read only\n",
+				       kdevname(-errorval));
+		} else {
+			if (newval < 0)
+				set_device_ro(-newval, 1);
+			izo_channels[minor].uc_errorval = newval;
+			CDEBUG(D_PSDEV, "setting errorval to %d\n", newval);
+		}
+
+		break;
+	}
+#endif
+
+	case PSDEV_TRACE:
+	case PSDEV_DEBUG:
+	case PSDEV_BYTES_TO_CLOSE:
+	default:
+		CDEBUG(D_PSDEV,
+		       "ioctl: dosetopt: minor %d, bad optname 0x%x, \n",
+		       minor, opt->optname);
+
+		retval = -EINVAL;
+	}
+
+	EXIT;
+	return retval;
+}
+
+int dogetopt(int minor, struct psdev_opt *opt)
+{
+	int retval = 0;
+
+	ENTRY;
+
+	switch(opt->optname) {
+
+	case PSDEV_TIMEOUT:
+		opt->optval = izo_channels[minor].uc_timeout;
+		break;
+
+	case PSDEV_HARD:
+		opt->optval = izo_channels[minor].uc_hard;
+		break;
+
+	case PSDEV_NO_FILTER:
+		opt->optval = izo_channels[minor].uc_no_filter;
+		break;
+
+	case PSDEV_NO_JOURNAL:
+		opt->optval = izo_channels[minor].uc_no_journal;
+		break;
+
+	case PSDEV_NO_UPCALL:
+		opt->optval = izo_channels[minor].uc_no_upcall;
+		break;
+
+#ifdef PSDEV_DEBUG
+	case PSDEV_ERRORVAL: {
+		int errorval = izo_channels[minor].uc_errorval;
+		if (errorval < 0 && is_read_only(-errorval))
+			CERROR("device %s has been set read-only\n",
+			       kdevname(-errorval));
+		opt->optval = izo_channels[minor].uc_errorval;
+		break;
+	}
+#endif
+
+	case PSDEV_TRACE:
+	case PSDEV_DEBUG:
+	case PSDEV_BYTES_TO_CLOSE:
+	default:
+		CDEBUG(D_PSDEV,
+		       "ioctl: dogetopt: minor %d, bad optval 0x%x, \n",
+		       minor, opt->optname);
+
+		retval = -EINVAL;
+	}
+
+	EXIT;
+	return retval;
+}
+#endif
+
+
+/* allocate the tables for the presto devices. We need
+ * sizeof(proto_channel_table)/sizeof(proto_channel_table[0])
+ * entries for each dev
+ */
+int /* __init */ init_intermezzo_sysctl(void)
+{
+	int i;
+	int total_dev = MAX_CHANNEL;
+	int entries_per_dev = sizeof(proto_psdev_table) /
+		sizeof(proto_psdev_table[0]);
+	int total_entries = entries_per_dev * total_dev;
+	ctl_table *dev_ctl_table;
+
+	PRESTO_ALLOC(dev_ctl_table, sizeof(ctl_table) * total_entries);
+
+	if (! dev_ctl_table) {
+		CERROR("WARNING: presto couldn't allocate dev_ctl_table\n");
+		EXIT;
+		return -ENOMEM;
+	}
+
+	/* now fill in the entries ... we put the individual presto<x>
+	 * entries at the end of the table, and the per-presto stuff
+	 * starting at the front.  We assume that the compiler makes
+	 * this code more efficient, but really, who cares ... it
+	 * happens once per reboot.
+	 */
+	for(i = 0; i < total_dev; i++) {
+		void *p;
+
+		/* entry for this /proc/sys/intermezzo/intermezzo"i" */
+		ctl_table *psdev = &presto_table[i + PRESTO_PRIMARY_CTLCNT];
+		/* entries for the individual "files" in this "directory" */
+		ctl_table *psdev_entries = &dev_ctl_table[i * entries_per_dev];
+		/* init the psdev and psdev_entries with the prototypes */
+		*psdev = proto_channel_entry;
+		memcpy(psdev_entries, proto_psdev_table,
+		       sizeof(proto_psdev_table));
+		/* now specialize them ... */
+		/* the psdev has to point to psdev_entries, and fix the number */
+		psdev->ctl_name = psdev->ctl_name + i + 1; /* sorry */
+
+		PRESTO_ALLOC(p, PROCNAME_SIZE);
+		psdev->procname = p;
+		if (!psdev->procname) {
+			PRESTO_FREE(dev_ctl_table,
+				    sizeof(ctl_table) * total_entries);
+			return -ENOMEM;
+		}
+		sprintf((char *) psdev->procname, "intermezzo%d", i);
+		/* hook presto into */
+		psdev->child = psdev_entries;
+
+		/* now for each psdev entry ... */
+		psdev_entries[0].data = &(izo_channels[i].uc_hard);
+		psdev_entries[1].data = &(izo_channels[i].uc_no_filter);
+		psdev_entries[2].data = &(izo_channels[i].uc_no_journal);
+		psdev_entries[3].data = &(izo_channels[i].uc_no_upcall);
+		psdev_entries[4].data = &(izo_channels[i].uc_timeout);
+#ifdef PRESTO_DEBUG
+		psdev_entries[5].data = &(izo_channels[i].uc_errorval);
+#endif
+	}
+
+
+#ifdef CONFIG_SYSCTL
+	if ( !intermezzo_table_header )
+		intermezzo_table_header =
+			register_sysctl_table(intermezzo_table, 0);
+#endif
+#ifdef CONFIG_PROC_FS
+	proc_fs_intermezzo = proc_mkdir("intermezzo", proc_root_fs);
+	proc_fs_intermezzo->owner = THIS_MODULE;
+	create_proc_info_entry("mounts", 0, proc_fs_intermezzo, 
+			       intermezzo_mount_get_info);
+#endif
+	return 0;
+}
+
+void cleanup_intermezzo_sysctl(void)
+{
+	int total_dev = MAX_CHANNEL;
+	int entries_per_dev = sizeof(proto_psdev_table) /
+		sizeof(proto_psdev_table[0]);
+	int total_entries = entries_per_dev * total_dev;
+	int i;
+
+#ifdef CONFIG_SYSCTL
+	if ( intermezzo_table_header )
+		unregister_sysctl_table(intermezzo_table_header);
+	intermezzo_table_header = NULL;
+#endif
+	for(i = 0; i < total_dev; i++) {
+		/* entry for this /proc/sys/intermezzo/intermezzo"i" */
+		ctl_table *psdev = &presto_table[i + PRESTO_PRIMARY_CTLCNT];
+		PRESTO_FREE(psdev->procname, PROCNAME_SIZE);
+	}
+	/* presto_table[PRESTO_PRIMARY_CTLCNT].child points to the
+	 * dev_ctl_table previously allocated in init_intermezzo_psdev()
+	 */
+	PRESTO_FREE(presto_table[PRESTO_PRIMARY_CTLCNT].child, sizeof(ctl_table) * total_entries);
+
+#if CONFIG_PROC_FS
+	remove_proc_entry("mounts", proc_fs_intermezzo);
+	remove_proc_entry("intermezzo", proc_root_fs);
+#endif
+}
+
diff --git a/fs/intermezzo/upcall.c b/fs/intermezzo/upcall.c
new file mode 100644
index 00000000000000..b11af21f60c1e4
--- /dev/null
+++ b/fs/intermezzo/upcall.c
@@ -0,0 +1,557 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ * Copyright (C) 2001, 2002 Cluster File Systems, Inc. <braam@clusterfs.com>
+ * Copyright (C) 2001 Tacit Networks, Inc. <phil@off.net>
+ *
+ *   This file is part of InterMezzo, http://www.inter-mezzo.org.
+ *
+ *   InterMezzo is free software; you can redistribute it and/or
+ *   modify it under the terms of version 2 of the GNU General Public
+ *   License as published by the Free Software Foundation.
+ *
+ *   InterMezzo is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with InterMezzo; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Mostly platform independent upcall operations to a cache manager:
+ *  -- upcalls
+ *  -- upcall routines
+ *
+ */
+
+#include <asm/system.h>
+#include <asm/segment.h>
+#include <asm/signal.h>
+#include <linux/signal.h>
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/vmalloc.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <linux/string.h>
+#include <asm/uaccess.h>
+#include <linux/vmalloc.h>
+#include <asm/segment.h>
+
+#include <linux/intermezzo_lib.h>
+#include <linux/intermezzo_fs.h>
+#include <linux/intermezzo_psdev.h>
+
+#include <linux/intermezzo_idl.h>
+
+/*
+  At present:
+  -- Asynchronous calls:
+   - kml:            give a "more" kml indication to userland
+   - kml_truncate:   initiate KML truncation
+   - release_permit: kernel is done with permit
+  -- Synchronous
+   - open:           fetch file
+   - permit:         get a permit
+
+  Errors returned by user level code are positive
+
+ */
+
+static struct izo_upcall_hdr *upc_pack(__u32 opcode, int pathlen, char *path,
+                                       char *fsetname, int reclen, char *rec,
+                                       int *size)
+{
+        struct izo_upcall_hdr *hdr;
+        char *ptr;
+        ENTRY;
+
+        *size = sizeof(struct izo_upcall_hdr);
+        if ( fsetname ) {
+                *size += round_strlen(fsetname);
+        }
+        if ( path ) { 
+                *size += round_strlen(path);
+        }
+        if ( rec ) { 
+                *size += size_round(reclen);
+        }
+        PRESTO_ALLOC(hdr, *size);
+        if (!hdr) { 
+                CERROR("intermezzo upcall: out of memory (opc %d)\n", opcode);
+                EXIT;
+                return NULL;
+        }
+        memset(hdr, 0, *size);
+
+        ptr = (char *)hdr + sizeof(*hdr);
+
+        /* XXX do we need fsuid ? */
+        hdr->u_len = *size;
+        hdr->u_version = IZO_UPC_VERSION;
+        hdr->u_opc = opcode;
+        hdr->u_pid = current->pid;
+        hdr->u_uid = current->fsuid;
+
+        if (path) { 
+                /*XXX Robert: please review what len to pass in for 
+                  NUL terminated strings */
+                hdr->u_pathlen = strlen(path);
+                LOGL0(path, hdr->u_pathlen, ptr);
+        }
+        if (fsetname) { 
+                hdr->u_fsetlen = strlen(fsetname);
+                LOGL0(fsetname, strlen(fsetname), ptr);
+        }
+        if (rec) { 
+                hdr->u_reclen = reclen;
+                LOGL(rec, reclen, ptr);
+        }
+        
+        EXIT;
+        return hdr;
+}
+
+/* the upcalls */
+int izo_upc_kml(int minor, __u64 offset, __u32 first_recno, __u64 length, __u32 last_recno, char *fsetname)
+{
+        int size;
+        int error;
+        struct izo_upcall_hdr *hdr;
+
+        ENTRY;
+        if (!presto_lento_up(minor)) {
+                EXIT;
+                return 0;
+        }
+
+        hdr = upc_pack(IZO_UPC_KML, 0, NULL, fsetname, 0, NULL, &size);
+        if (!hdr || IS_ERR(hdr)) {
+                EXIT;
+                return -PTR_ERR(hdr);
+        }
+
+        hdr->u_offset = offset;
+        hdr->u_first_recno = first_recno;
+        hdr->u_length = length;
+        hdr->u_last_recno = last_recno;
+
+        CDEBUG(D_UPCALL, "KML: fileset %s, offset %Lu, length %Lu, "
+               "first %u, last %d; minor %d\n",
+               fsetname, hdr->u_offset, hdr->u_length, hdr->u_first_recno,
+               hdr->u_last_recno, minor);
+
+        error = izo_upc_upcall(minor, &size, hdr, ASYNCHRONOUS);
+
+        EXIT;
+        return -error;
+}
+
+int izo_upc_kml_truncate(int minor, __u64 length, __u32 last_recno, char *fsetname)
+{
+        int size;
+        int error;
+        struct izo_upcall_hdr *hdr;
+
+        ENTRY;
+        if (!presto_lento_up(minor)) {
+                EXIT;
+                return 0;
+        }
+
+        hdr = upc_pack(IZO_UPC_KML_TRUNC, 0, NULL, fsetname, 0, NULL, &size);
+        if (!hdr || IS_ERR(hdr)) {
+                EXIT;
+                return -PTR_ERR(hdr);
+        }
+
+        hdr->u_length = length;
+        hdr->u_last_recno = last_recno;
+
+        CDEBUG(D_UPCALL, "KML TRUNCATE: fileset %s, length %Lu, "
+               "last recno %d, minor %d\n",
+               fsetname, hdr->u_length, hdr->u_last_recno, minor);
+
+        error = izo_upc_upcall(minor, &size, hdr, ASYNCHRONOUS);
+
+        EXIT;
+        return error;
+}
+
+int izo_upc_open(int minor, __u32 pathlen, char *path, char *fsetname, struct lento_vfs_context *info)
+{
+        int size;
+        int error;
+        struct izo_upcall_hdr *hdr;
+        ENTRY;
+
+        if (!presto_lento_up(minor)) {
+                EXIT;
+                return -EIO;
+        }
+
+        hdr = upc_pack(IZO_UPC_OPEN, pathlen, path, fsetname, 
+                       sizeof(*info), (char*)info, &size);
+        if (!hdr || IS_ERR(hdr)) {
+                EXIT;
+                return -PTR_ERR(hdr);
+        }
+
+        CDEBUG(D_UPCALL, "path %s\n", path);
+
+        error = izo_upc_upcall(minor, &size, hdr, SYNCHRONOUS);
+        if (error)
+                CERROR("InterMezzo: %s: error %d\n", __FUNCTION__, error);
+
+        EXIT;
+        return -error;
+}
+
+int izo_upc_get_fileid(int minor, __u32 reclen, char *rec, 
+                       __u32 pathlen, char *path, char *fsetname)
+{
+        int size;
+        int error;
+        struct izo_upcall_hdr *hdr;
+        ENTRY;
+
+        if (!presto_lento_up(minor)) {
+                EXIT;
+                return -EIO;
+        }
+
+        hdr = upc_pack(IZO_UPC_GET_FILEID, pathlen, path, fsetname, reclen, rec, &size);
+        if (!hdr || IS_ERR(hdr)) {
+                EXIT;
+                return -PTR_ERR(hdr);
+        }
+
+        CDEBUG(D_UPCALL, "path %s\n", path);
+
+        error = izo_upc_upcall(minor, &size, hdr, SYNCHRONOUS);
+        if (error)
+                CERROR("InterMezzo: %s: error %d\n", __FUNCTION__, error);
+
+        EXIT;
+        return -error;
+}
+
+int izo_upc_backfetch(int minor, char *path, char *fsetname, struct lento_vfs_context *info)
+{
+        int size;
+        int error;
+        struct izo_upcall_hdr *hdr;
+        ENTRY;
+
+        if (!presto_lento_up(minor)) {
+                EXIT;
+                return -EIO;
+        }
+
+        hdr = upc_pack(IZO_UPC_BACKFETCH, strlen(path), path, fsetname, 
+                       sizeof(*info), (char *)info, &size);
+        if (!hdr || IS_ERR(hdr)) {
+                EXIT;
+                return -PTR_ERR(hdr);
+        }
+
+        /* This is currently synchronous, kml_reint_record blocks */
+        error = izo_upc_upcall(minor, &size, hdr, SYNCHRONOUS);
+        if (error)
+                CERROR("InterMezzo: %s: error %d\n", __FUNCTION__, error);
+
+        EXIT;
+        return -error;
+}
+
+int izo_upc_permit(int minor, struct dentry *dentry, __u32 pathlen, char *path,
+                   char *fsetname)
+{
+        int size;
+        int error;
+        struct izo_upcall_hdr *hdr;
+
+        ENTRY;
+
+        hdr = upc_pack(IZO_UPC_PERMIT, pathlen, path, fsetname, 0, NULL, &size);
+        if (!hdr || IS_ERR(hdr)) {
+                EXIT;
+                return -PTR_ERR(hdr);
+        }
+
+        CDEBUG(D_UPCALL, "Permit minor %d path %s\n", minor, path);
+
+        error = izo_upc_upcall(minor, &size, hdr, SYNCHRONOUS);
+
+        if (error == -EROFS) {
+                int err;
+                CERROR("InterMezzo: ERROR - requested permit for read-only "
+                       "fileset.\n   Setting \"%s\" read-only!\n", path);
+                err = izo_mark_cache(dentry, 0xFFFFFFFF, CACHE_CLIENT_RO, NULL);
+                if (err)
+                        CERROR("InterMezzo ERROR: mark_cache %d\n", err);
+        } else if (error) {
+                CERROR("InterMezzo: %s: error %d\n", __FUNCTION__, error);
+        }
+
+        EXIT;
+        return error;
+}
+
+/* This is a ping-pong upcall handled on the server when a client (uuid)
+ * requests the permit for itself. */
+int izo_upc_revoke_permit(int minor, char *fsetname, __u8 uuid[16])
+{
+        int size;
+        int error;
+        struct izo_upcall_hdr *hdr;
+
+        ENTRY;
+
+        hdr = upc_pack(IZO_UPC_REVOKE_PERMIT, 0, NULL, fsetname, 0, NULL, &size);
+        if (!hdr || IS_ERR(hdr)) {
+                EXIT;
+                return -PTR_ERR(hdr);
+        }
+
+        memcpy(hdr->u_uuid, uuid, sizeof(hdr->u_uuid));
+
+        error = izo_upc_upcall(minor, &size, hdr, SYNCHRONOUS);
+
+        if (error)
+                CERROR("InterMezzo: %s: error %d\n", __FUNCTION__, error);
+
+        EXIT;
+        return -error;
+}
+
+int izo_upc_go_fetch_kml(int minor, char *fsetname, __u8 uuid[16],
+                         __u64 kmlsize)
+{
+        int size;
+        int error;
+        struct izo_upcall_hdr *hdr;
+        ENTRY;
+
+        if (!presto_lento_up(minor)) {
+                EXIT;
+                return -EIO;
+        }
+
+        hdr = upc_pack(IZO_UPC_GO_FETCH_KML, 0, NULL, fsetname, 0, NULL, &size);
+        if (!hdr || IS_ERR(hdr)) {
+                EXIT;
+                return -PTR_ERR(hdr);
+        }
+
+        hdr->u_offset = kmlsize;
+        memcpy(hdr->u_uuid, uuid, sizeof(hdr->u_uuid));
+
+        error = izo_upc_upcall(minor, &size, hdr, ASYNCHRONOUS);
+        if (error)
+                CERROR("%s: error %d\n", __FUNCTION__, error);
+
+        EXIT;
+        return -error;
+}
+
+int izo_upc_connect(int minor, __u64 ip_address, __u64 port, __u8 uuid[16],
+                    int client_flag)
+{
+        int size;
+        int error;
+        struct izo_upcall_hdr *hdr;
+        ENTRY;
+
+        if (!presto_lento_up(minor)) {
+                EXIT;
+                return -EIO;
+        }
+
+        hdr = upc_pack(IZO_UPC_CONNECT, 0, NULL, NULL, 0, NULL, &size);
+        if (!hdr || IS_ERR(hdr)) {
+                EXIT;
+                return -PTR_ERR(hdr);
+        }
+
+        hdr->u_offset = ip_address;
+        hdr->u_length = port;
+        memcpy(hdr->u_uuid, uuid, sizeof(hdr->u_uuid));
+        hdr->u_first_recno = client_flag;
+
+        error = izo_upc_upcall(minor, &size, hdr, SYNCHRONOUS);
+        if (error) {
+                CERROR("%s: error %d\n", __FUNCTION__, error);
+        }
+
+        EXIT;
+        return -error;
+}
+
+int izo_upc_set_kmlsize(int minor, char *fsetname, __u8 uuid[16], __u64 kmlsize)
+{
+        int size;
+        int error;
+        struct izo_upcall_hdr *hdr;
+        ENTRY;
+
+        if (!presto_lento_up(minor)) {
+                EXIT;
+                return -EIO;
+        }
+
+        hdr = upc_pack(IZO_UPC_SET_KMLSIZE, 0, NULL, fsetname, 0, NULL, &size);
+        if (!hdr || IS_ERR(hdr)) {
+                EXIT;
+                return -PTR_ERR(hdr);
+        }
+
+        memcpy(hdr->u_uuid, uuid, sizeof(hdr->u_uuid));
+        hdr->u_length = kmlsize;
+
+        error = izo_upc_upcall(minor, &size, hdr, SYNCHRONOUS);
+        if (error)
+                CERROR("%s: error %d\n", __FUNCTION__, error);
+
+        EXIT;
+        return -error;
+}
+
+int izo_upc_repstatus(int minor,  char * fsetname, struct izo_rcvd_rec *lr_server)
+{
+        int size;
+        int error;
+        struct izo_upcall_hdr *hdr;
+        ENTRY;
+
+        if (!presto_lento_up(minor)) {
+                EXIT;
+                return -EIO;
+        }
+
+        hdr = upc_pack(IZO_UPC_REPSTATUS, 0, NULL, fsetname, 
+                       sizeof(*lr_server), (char*)lr_server, 
+                       &size);
+        if (!hdr || IS_ERR(hdr)) {
+                EXIT;
+                return -PTR_ERR(hdr);
+        }
+
+        error = izo_upc_upcall(minor, &size, hdr, SYNCHRONOUS);
+        if (error)
+                CERROR("%s: error %d\n", __FUNCTION__, error);
+
+        EXIT;
+        return -error;
+}
+
+
+#if 0
+int izo_upc_client_make_branch(int minor, char *fsetname, char *tagname,
+                               char *branchname)
+{
+        int size, error;
+        struct izo_upcall_hdr *hdr;
+        int pathlen;
+        char *path;
+        ENTRY;
+
+        hdr = upc_pack(IZO_UPC_CLIENT_MAKE_BRANCH, strlen(tagname), tagname,
+                       fsetname, strlen(branchname) + 1, branchname, &size);
+        if (!hdr || IS_ERR(hdr)) {
+                error = -PTR_ERR(hdr);
+                goto error;
+        }
+
+        error = izo_upc_upcall(minor, &size, hdr, SYNCHRONOUS);
+        if (error)
+                CERROR("InterMezzo: error %d\n", error);
+
+ error:
+        PRESTO_FREE(path, pathlen);
+        EXIT;
+        return error;
+}
+#endif
+
+int izo_upc_server_make_branch(int minor, char *fsetname)
+{
+        int size, error;
+        struct izo_upcall_hdr *hdr;
+        ENTRY;
+
+        hdr = upc_pack(IZO_UPC_SERVER_MAKE_BRANCH, 0, NULL, fsetname, 0, NULL, &size);
+        if (!hdr || IS_ERR(hdr)) {
+                error = -PTR_ERR(hdr);
+                goto error;
+        }
+
+        error = izo_upc_upcall(minor, &size, hdr, SYNCHRONOUS);
+        if (error)
+                CERROR("InterMezzo: error %d\n", error);
+
+ error:
+        EXIT;
+        return -error;
+}
+
+int izo_upc_branch_undo(int minor, char *fsetname, char *branchname)
+{
+        int size;
+        int error;
+        struct izo_upcall_hdr *hdr;
+        ENTRY;
+
+        if (!presto_lento_up(minor)) {
+                EXIT;
+                return -EIO;
+        }
+
+        hdr = upc_pack(IZO_UPC_BRANCH_UNDO, strlen(branchname), branchname,
+                       fsetname, 0, NULL, &size);
+        if (!hdr || IS_ERR(hdr)) {
+                EXIT;
+                return -PTR_ERR(hdr);
+        }
+
+        error = izo_upc_upcall(minor, &size, hdr, SYNCHRONOUS);
+        if (error)
+                CERROR("InterMezzo: %s: error %d\n", __FUNCTION__, error);
+
+        EXIT;
+        return -error;
+}
+
+int izo_upc_branch_redo(int minor, char *fsetname, char *branchname)
+{
+        int size;
+        int error;
+        struct izo_upcall_hdr *hdr;
+        ENTRY;
+
+        if (!presto_lento_up(minor)) {
+                EXIT;
+                return -EIO;
+        }
+
+        hdr = upc_pack(IZO_UPC_BRANCH_REDO, strlen(branchname) + 1, branchname,
+                       fsetname, 0, NULL, &size);
+        if (!hdr || IS_ERR(hdr)) {
+                EXIT;
+                return -PTR_ERR(hdr);
+        }
+
+        error = izo_upc_upcall(minor, &size, hdr, SYNCHRONOUS);
+        if (error)
+                CERROR("InterMezzo: %s: error %d\n", __FUNCTION__, error);
+
+        EXIT;
+        return -error;
+}
diff --git a/fs/intermezzo/vfs.c b/fs/intermezzo/vfs.c
new file mode 100644
index 00000000000000..c57f2ab9800dc6
--- /dev/null
+++ b/fs/intermezzo/vfs.c
@@ -0,0 +1,2461 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ *  Copyright (C) 2001, 2002 Cluster File Systems, Inc.
+ *  Copyright (C) 2000 Stelias Computing, Inc.
+ *  Copyright (C) 2000 Red Hat, Inc.
+ *
+ *   This file is part of InterMezzo, http://www.inter-mezzo.org.
+ *
+ *   InterMezzo is free software; you can redistribute it and/or
+ *   modify it under the terms of version 2 of the GNU General Public
+ *   License as published by the Free Software Foundation.
+ *
+ *   InterMezzo is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with InterMezzo; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * vfs.c
+ *
+ * This file implements kernel downcalls from lento.
+ *
+ * Author: Rob Simmonds <simmonds@stelias.com>
+ *         Andreas Dilger <adilger@stelias.com>
+ * Copyright (C) 2000 Stelias Computing Inc
+ * Copyright (C) 2000 Red Hat Inc.
+ *
+ * Extended attribute support
+ * Copyright (C) 2001 Shirish H. Phatak, Tacit Networks, Inc.
+ *
+ * This code is based on code from namei.c in the linux file system;
+ * see copyright notice below.
+ */
+
+/** namei.c copyright **/
+
+/*
+ *  linux/fs/namei.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ */
+
+/*
+ * Some corrections by tytso.
+ */
+
+/* [Feb 1997 T. Schoebel-Theuer] Complete rewrite of the pathname
+ * lookup logic.
+ */
+
+/** end of namei.c copyright **/
+
+#include <linux/mm.h>
+#include <linux/proc_fs.h>
+#include <linux/smp_lock.h>
+#include <linux/quotaops.h>
+
+#include <asm/uaccess.h>
+#include <asm/unaligned.h>
+#include <asm/semaphore.h>
+#include <asm/pgtable.h>
+
+#include <linux/file.h>
+#include <linux/fs.h>
+#include <linux/blk.h>
+
+#include <linux/intermezzo_fs.h>
+#include <linux/intermezzo_psdev.h>
+
+#ifdef CONFIG_FS_EXT_ATTR
+# include <linux/ext_attr.h>
+
+# ifdef CONFIG_FS_POSIX_ACL
+#  include <linux/posix_acl.h>
+# endif
+#endif
+
+extern struct inode_operations presto_sym_iops;
+
+/* Write the last_rcvd values to the last_rcvd file.  We don't know what the
+ * UUID or last_ctime values are, so we have to read from the file first
+ * (sigh). 
+ * exported for branch_reinter in kml_reint.c*/
+int presto_write_last_rcvd(struct rec_info *recinfo,
+                           struct presto_file_set *fset,
+                           struct lento_vfs_context *info)
+{
+        int rc;
+        struct izo_rcvd_rec rcvd_rec;
+
+        ENTRY;
+
+        memset(&rcvd_rec, 0, sizeof(rcvd_rec));
+        memcpy(rcvd_rec.lr_uuid, info->uuid, sizeof(rcvd_rec.lr_uuid));
+        rcvd_rec.lr_remote_recno = HTON__u64(info->recno);
+        rcvd_rec.lr_remote_offset = HTON__u64(info->kml_offset);
+        rcvd_rec.lr_local_recno = HTON__u64(recinfo->recno);
+        rcvd_rec.lr_local_offset = HTON__u64(recinfo->offset + recinfo->size);
+
+        rc = izo_rcvd_write(fset, &rcvd_rec);
+        if (rc < 0) {
+                /* izo_rcvd_write returns negative errors and non-negative
+                 * offsets */
+                CERROR("InterMezzo: izo_rcvd_write failed: %d\n", rc);
+                EXIT;
+                return rc;
+        }
+        EXIT;
+        return 0;
+}
+
+/*
+ * It's inline, so penalty for filesystems that don't use sticky bit is
+ * minimal.
+ */
+static inline int check_sticky(struct inode *dir, struct inode *inode)
+{
+        if (!(dir->i_mode & S_ISVTX))
+                return 0;
+        if (inode->i_uid == current->fsuid)
+                return 0;
+        if (dir->i_uid == current->fsuid)
+                return 0;
+        return !capable(CAP_FOWNER);
+}
+
+/* from linux/fs/namei.c */
+static inline int may_delete(struct inode *dir,struct dentry *victim, int isdir)
+{
+        int error;
+        if (!victim->d_inode || victim->d_parent->d_inode != dir)
+                return -ENOENT;
+        error = permission(dir,MAY_WRITE | MAY_EXEC);
+        if (error)
+                return error;
+        if (IS_APPEND(dir))
+                return -EPERM;
+        if (check_sticky(dir, victim->d_inode)||IS_APPEND(victim->d_inode)||
+            IS_IMMUTABLE(victim->d_inode))
+                return -EPERM;
+        if (isdir) {
+                if (!S_ISDIR(victim->d_inode->i_mode))
+                        return -ENOTDIR;
+                if (IS_ROOT(victim))
+                        return -EBUSY;
+        } else if (S_ISDIR(victim->d_inode->i_mode))
+                return -EISDIR;
+        return 0;
+}
+
+/* from linux/fs/namei.c */
+static inline int may_create(struct inode *dir, struct dentry *child) {
+        if (child->d_inode)
+                return -EEXIST;
+        if (IS_DEADDIR(dir))
+                return -ENOENT;
+        return permission(dir,MAY_WRITE | MAY_EXEC);
+}
+
+#ifdef PRESTO_DEBUG
+/* The loop_discard_io() function is available via a kernel patch to the
+ * loop block device.  It "works" by accepting writes, but throwing them
+ * away, rather than trying to write them to disk.  The old method worked
+ * by setting the underlying device read-only, but that has the problem
+ * that dirty buffers are kept in memory, and ext3 didn't like that at all.
+ */
+#ifdef CONFIG_LOOP_DISCARD
+#define BLKDEV_FAIL(dev,fail) loop_discard_io(dev,fail)
+#else
+#define BLKDEV_FAIL(dev,fail) set_device_ro(dev, 1)
+#endif
+
+/* If a breakpoint has been set via /proc/sys/intermezzo/intermezzoX/errorval,
+ * that is the same as "value", the underlying device will "fail" now.
+ */
+inline void presto_debug_fail_blkdev(struct presto_file_set *fset,
+                                     unsigned long value)
+{
+        int minor = presto_f2m(fset);
+        int errorval = izo_channels[minor].uc_errorval;
+        kdev_t dev = fset->fset_dentry->d_inode->i_dev;
+
+        if (errorval && errorval == (long)value && !is_read_only(dev)) {
+                CDEBUG(D_SUPER, "setting device %s read only\n", kdevname(dev));
+                BLKDEV_FAIL(dev, 1);
+                izo_channels[minor].uc_errorval = -dev;
+        }
+}
+#else
+#define presto_debug_fail_blkdev(dev,value) do {} while (0)
+#endif
+
+
+static inline int presto_do_kml(struct lento_vfs_context *info,
+                                struct dentry *dentry)
+{
+        if ( ! (info->flags & LENTO_FL_KML) )
+                return 0;
+        if ( presto_chk(dentry, PRESTO_DONT_JOURNAL) )
+                return 0;
+        return 1;
+}
+
+static inline int presto_do_rcvd(struct lento_vfs_context *info,
+                                 struct dentry *dentry)
+{
+        if ( ! (info->flags & LENTO_FL_EXPECT) ) 
+                return 0;
+        if ( presto_chk(dentry, PRESTO_DONT_JOURNAL) )
+                return 0;
+        return 1;
+}
+
+
+/* XXX fixme: this should not fail, all these dentries are in memory
+   when _we_ call this */
+int presto_settime(struct presto_file_set *fset, 
+                   struct dentry *newobj,
+                   struct dentry *parent,
+                   struct dentry *target,
+                   struct lento_vfs_context *ctx, 
+                   int valid)
+{
+        int error = 0;
+        struct dentry *dentry;
+        struct inode *inode;
+        struct inode_operations *iops;
+        struct iattr iattr;
+
+        ENTRY;
+        if (ctx->flags &  LENTO_FL_IGNORE_TIME ) { 
+                EXIT;
+                return 0;
+        }
+
+        iattr.ia_ctime = ctx->updated_time;
+        iattr.ia_mtime = ctx->updated_time;
+        iattr.ia_valid = valid;
+
+        while (1) {
+                if (parent && ctx->flags & LENTO_FL_TOUCH_PARENT) {
+                        dentry = parent;
+                        parent = NULL;
+                } else if (newobj && ctx->flags & LENTO_FL_TOUCH_NEWOBJ) {
+                        dentry = newobj;
+                        newobj = NULL;
+                } else if (target) {
+                        dentry = target;
+                        target = NULL;
+                } else
+                        break;
+
+                inode = dentry->d_inode;
+
+                error = -EROFS;
+                if (IS_RDONLY(inode)) {
+                        EXIT;
+                        return -EROFS;
+                }
+
+                if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) {
+                        EXIT;
+                        return -EPERM;
+                }
+
+                error = -EPERM;
+                iops = filter_c2cdiops(fset->fset_cache->cache_filter); 
+                if (!iops) { 
+                        EXIT;
+                        return error;
+                }
+
+                if (iops->setattr != NULL)
+                        error = iops->setattr(dentry, &iattr);
+                else {
+                        error = 0;
+                        inode_setattr(dentry->d_inode, &iattr);
+                }
+        }
+        EXIT;
+        return error;
+}
+
+void izo_get_rollback_data(struct inode *inode, struct izo_rollback_data *rb)
+{
+        rb->rb_mode = (__u32)inode->i_mode;
+        rb->rb_rdev = (__u32)inode->i_rdev;
+        rb->rb_uid  = (__u64)inode->i_uid;
+        rb->rb_gid  = (__u64)inode->i_gid;
+}
+
+
+int presto_do_close(struct presto_file_set *fset, struct file *file)
+{
+        struct rec_info rec;
+        int rc = -ENOSPC; 
+        void *handle;
+        struct inode *inode = file->f_dentry->d_inode;
+        struct presto_file_data *fdata = 
+                (struct presto_file_data *)file->private_data;
+
+        ENTRY;
+        presto_getversion(&fdata->fd_info.remote_version, inode);
+
+        rc = presto_reserve_space(fset->fset_cache, PRESTO_REQHIGH); 
+        if (rc) { 
+                EXIT;
+                return rc;
+        }
+
+        handle = presto_trans_start(fset, file->f_dentry->d_inode, 
+                                            KML_OPCODE_RELEASE);
+        if ( IS_ERR(handle) ) {
+                CERROR("presto_release: no space for transaction\n");
+                return rc;
+        }
+
+        if (fdata->fd_info.flags & LENTO_FL_KML) 
+                rc = presto_journal_close(&rec, fset, file, file->f_dentry,
+                                          &fdata->fd_version, 
+                                          &fdata->fd_info.remote_version);
+        if (rc) { 
+                CERROR("presto_close: cannot journal close\n");
+                goto out;
+        }
+
+        if (fdata->fd_info.flags & LENTO_FL_EXPECT) 
+                rc = presto_write_last_rcvd(&rec, fset, &fdata->fd_info);
+
+        if (rc) { 
+                CERROR("presto_close: cannot journal last_rcvd\n");
+                goto out;
+        }
+        presto_trans_commit(fset, handle); 
+        
+        /* cancel the LML record */ 
+        handle = presto_trans_start(fset, inode, KML_OPCODE_WRITE);
+        if ( IS_ERR(handle) ) {
+                CERROR("presto_release: no space for clear\n");
+                return -ENOSPC;
+        }
+
+        rc = presto_clear_lml_close(fset, fdata->fd_lml_offset); 
+        if (rc < 0 ) { 
+                CERROR("presto_close: cannot journal close\n");
+                goto out;
+        }
+        presto_truncate_lml(fset);
+
+ out:
+        presto_release_space(fset->fset_cache, PRESTO_REQHIGH); 
+        presto_trans_commit(fset, handle); 
+        EXIT;
+        return rc;
+}
+
+int presto_do_setattr(struct presto_file_set *fset, struct dentry *dentry,
+                      struct iattr *iattr, struct lento_vfs_context *info)
+{
+        struct rec_info rec;
+        struct inode *inode = dentry->d_inode;
+        struct inode_operations *iops;
+        int error;
+        struct presto_version old_ver, new_ver;
+        struct izo_rollback_data rb;
+        void *handle;
+        loff_t old_size=inode->i_size;
+
+        ENTRY;
+        error = -EROFS;
+        if (IS_RDONLY(inode)) {
+                EXIT;
+                return -EROFS;
+        }
+
+        if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) {
+                EXIT;
+                return -EPERM;
+        }
+
+        presto_getversion(&old_ver, dentry->d_inode);
+        izo_get_rollback_data(dentry->d_inode, &rb);
+        error = -EPERM;
+        iops = filter_c2cdiops(fset->fset_cache->cache_filter); 
+
+        error = presto_reserve_space(fset->fset_cache, 2*PRESTO_REQHIGH); 
+        if (error) {
+                EXIT;
+                return error;
+        }
+
+        if  (iattr->ia_valid & ATTR_SIZE) {
+                if (izo_mark_dentry(dentry, ~PRESTO_DATA, 0, NULL) != 0)
+                        CERROR("izo_mark_dentry(inode %ld, ~PRESTO_DATA) "
+                               "failed\n", dentry->d_inode->i_ino);
+                handle = presto_trans_start(fset, dentry->d_inode,
+                                            KML_OPCODE_TRUNC);
+        } else {
+                handle = presto_trans_start(fset, dentry->d_inode,
+                                            KML_OPCODE_SETATTR);
+        }
+
+        if ( IS_ERR(handle) ) {
+                CERROR("presto_do_setattr: no space for transaction\n");
+                presto_release_space(fset->fset_cache, 2*PRESTO_REQHIGH); 
+                return -ENOSPC;
+        }
+
+        if (dentry->d_inode && iops && iops->setattr) {
+                error = iops->setattr(dentry, iattr);
+        } else {
+                error = inode_change_ok(dentry->d_inode, iattr);
+                if (!error) 
+                        inode_setattr(inode, iattr);
+        }
+
+        if (!error && (iattr->ia_valid & ATTR_SIZE))
+                vmtruncate(inode, iattr->ia_size);
+
+        if (error) {
+                EXIT;
+                goto exit;
+        }
+
+        presto_debug_fail_blkdev(fset, KML_OPCODE_SETATTR | 0x10);
+
+        if ( presto_do_kml(info, dentry) ) {
+                if ((iattr->ia_valid & ATTR_SIZE) && (old_size != inode->i_size)) {
+                        struct file file;
+                        /* Journal a close whenever we see a potential truncate
+                        * At the receiving end, lento should explicitly remove
+                        * ATTR_SIZE from the list of valid attributes */
+                        presto_getversion(&new_ver, inode);
+                        file.private_data = NULL;
+                        file.f_dentry = dentry;
+                        error = presto_journal_close(&rec, fset, &file, dentry,
+                                                     &old_ver, &new_ver);
+                }
+
+                if (!error)
+                        error = presto_journal_setattr(&rec, fset, dentry,
+                                                       &old_ver, &rb, iattr);
+        }
+
+        presto_debug_fail_blkdev(fset, KML_OPCODE_SETATTR | 0x20);
+        if ( presto_do_rcvd(info, dentry) )
+                error = presto_write_last_rcvd(&rec, fset, info);
+
+        presto_debug_fail_blkdev(fset, KML_OPCODE_SETATTR | 0x30);
+
+        EXIT;
+exit:
+        presto_release_space(fset->fset_cache, 2*PRESTO_REQHIGH); 
+        presto_trans_commit(fset, handle);
+        return error;
+}
+
+int lento_setattr(const char *name, struct iattr *iattr,
+                  struct lento_vfs_context *info)
+{
+        struct nameidata nd;
+        struct dentry *dentry;
+        struct presto_file_set *fset;
+        int error;
+#ifdef  CONFIG_FS_POSIX_ACL
+        int (*set_posix_acl)(struct inode *, int type, posix_acl_t *)=NULL;
+#endif
+
+        ENTRY;
+        CDEBUG(D_PIOCTL,"name %s, valid %#x, mode %#o, uid %d, gid %d, size %Ld\n",
+               name, iattr->ia_valid, iattr->ia_mode, iattr->ia_uid,
+               iattr->ia_gid, iattr->ia_size);
+        CDEBUG(D_PIOCTL, "atime %#lx, mtime %#lx, ctime %#lx, attr_flags %#x\n",
+               iattr->ia_atime, iattr->ia_mtime, iattr->ia_ctime,
+               iattr->ia_attr_flags);
+        CDEBUG(D_PIOCTL, "offset %d, recno %d, flags %#x\n",
+               info->slot_offset, info->recno, info->flags);
+
+        lock_kernel();
+        error = presto_walk(name, &nd);
+        if (error) {
+                EXIT;
+                goto exit;
+        }
+        dentry = nd.dentry;
+        
+        fset = presto_fset(dentry);
+        error = -EINVAL;
+        if ( !fset ) {
+                CERROR("No fileset!\n");
+                EXIT;
+                goto exit_lock;
+        }
+
+        /* NOTE: this prevents us from changing the filetype on setattr,
+         *       as we normally only want to change permission bits.
+         *       If this is not correct, then we need to fix the perl code
+         *       to always send the file type OR'ed with the permission.
+         */
+        if (iattr->ia_valid & ATTR_MODE) {
+                int set_mode = iattr->ia_mode;
+                iattr->ia_mode = (iattr->ia_mode & S_IALLUGO) |
+                                 (dentry->d_inode->i_mode & ~S_IALLUGO);
+                CDEBUG(D_PIOCTL, "chmod: orig %#o, set %#o, result %#o\n",
+                       dentry->d_inode->i_mode, set_mode, iattr->ia_mode);
+#ifdef CONFIG_FS_POSIX_ACL
+                /* ACl code interacts badly with setattr 
+                 * since it tries to modify the ACL using 
+                 * set_ext_attr which recurses back into presto.  
+                 * This only happens if ATTR_MODE is set.
+                 * Here we are doing a "forced" mode set 
+                 * (initiated by lento), so we disable the 
+                 * set_posix_acl operation which 
+                 * prevents such recursion.  -SHP
+                 *
+                 * This will probably still be required when native
+                 * acl journalling is in place.
+                 */
+                set_posix_acl=dentry->d_inode->i_op->set_posix_acl;
+                dentry->d_inode->i_op->set_posix_acl=NULL;
+#endif
+        }
+
+        error = presto_do_setattr(fset, dentry, iattr, info);
+
+        if (info->flags & LENTO_FL_SET_DDFILEID) {
+                struct presto_dentry_data *dd = presto_d2d(dentry);
+                if (dd) {
+                        dd->remote_ino = info->remote_ino;
+                        dd->remote_generation = info->remote_generation;
+                }
+        }
+
+#ifdef CONFIG_FS_POSIX_ACL
+        /* restore the inode_operations if we changed them*/
+        if (iattr->ia_valid & ATTR_MODE) 
+                dentry->d_inode->i_op->set_posix_acl=set_posix_acl;
+#endif
+
+
+        EXIT;
+exit_lock:
+        path_release(&nd);
+exit:
+        unlock_kernel();
+        return error;
+}
+
+int presto_do_create(struct presto_file_set *fset, struct dentry *dir,
+                     struct dentry *dentry, int mode,
+                     struct lento_vfs_context *info)
+{
+        struct rec_info rec;
+        int error;
+        struct presto_version tgt_dir_ver, new_file_ver;
+        struct inode_operations *iops;
+        void *handle;
+
+        ENTRY;
+        mode &= S_IALLUGO;
+        mode |= S_IFREG;
+
+        down(&dir->d_inode->i_zombie);
+        error = presto_reserve_space(fset->fset_cache, PRESTO_REQHIGH); 
+        if (error) {
+                EXIT;
+                up(&dir->d_inode->i_zombie);
+                return error;
+        }
+
+        error = may_create(dir->d_inode, dentry);
+        if (error) {
+                EXIT;
+                goto exit_pre_lock;
+        }
+
+        error = -EPERM;
+        iops = filter_c2cdiops(fset->fset_cache->cache_filter);
+        if (!iops->create) {
+                EXIT;
+                goto exit_pre_lock;
+        }
+
+        presto_getversion(&tgt_dir_ver, dir->d_inode);
+        handle = presto_trans_start(fset, dir->d_inode, KML_OPCODE_CREATE);
+        if ( IS_ERR(handle) ) {
+                EXIT;
+                presto_release_space(fset->fset_cache, PRESTO_REQHIGH); 
+                CERROR("presto_do_create: no space for transaction\n");
+                error=-ENOSPC;
+                goto exit_pre_lock;
+        }
+        DQUOT_INIT(dir->d_inode);
+        lock_kernel();
+        error = iops->create(dir->d_inode, dentry, mode);
+        if (error) {
+                EXIT;
+                goto exit_lock;
+        }
+
+        if (dentry->d_inode) {
+                struct presto_cache *cache = fset->fset_cache;
+                /* was this already done? */
+                presto_set_ops(dentry->d_inode, cache->cache_filter);
+
+                filter_setup_dentry_ops(cache->cache_filter, 
+                                        dentry->d_op, 
+                                        &presto_dentry_ops);
+                dentry->d_op = filter_c2udops(cache->cache_filter);
+
+                /* if Lento creates this file, we won't have data */
+                if ( ISLENTO(presto_c2m(cache)) ) {
+                        presto_set(dentry, PRESTO_ATTR);
+                } else {
+                        presto_set(dentry, PRESTO_ATTR | PRESTO_DATA);
+                }
+        }
+
+        info->flags |= LENTO_FL_TOUCH_PARENT;
+        error = presto_settime(fset, NULL, dir, dentry,
+                               info, ATTR_CTIME | ATTR_MTIME);
+        if (error) { 
+                EXIT;
+                goto exit_lock;
+        }
+
+        presto_debug_fail_blkdev(fset, KML_OPCODE_CREATE | 0x10);
+
+        if ( presto_do_kml(info, dentry) ) { 
+                presto_getversion(&new_file_ver, dentry->d_inode);
+                error = presto_journal_create(&rec, fset, dentry, &tgt_dir_ver,
+                                              &new_file_ver, 
+                                              dentry->d_inode->i_mode);
+        }
+
+        presto_debug_fail_blkdev(fset, KML_OPCODE_CREATE | 0x20);
+
+        if ( presto_do_rcvd(info, dentry) )
+                error = presto_write_last_rcvd(&rec, fset, info);
+
+        presto_debug_fail_blkdev(fset, KML_OPCODE_CREATE | 0x30);
+
+        /* add inode dentry */
+        if (fset->fset_cache->cache_filter->o_trops->tr_add_ilookup ) { 
+                struct dentry *d;
+                d = fset->fset_cache->cache_filter->o_trops->tr_add_ilookup
+                        (dir->d_inode->i_sb->s_root, dentry);
+        }
+
+        EXIT;
+
+ exit_lock:
+        unlock_kernel();
+        presto_trans_commit(fset, handle);
+ exit_pre_lock:
+        presto_release_space(fset->fset_cache, PRESTO_REQHIGH); 
+        up(&dir->d_inode->i_zombie);
+        return error;
+}
+
+/* from namei.c */
+static struct dentry *lookup_create(struct nameidata *nd, int is_dir)
+{
+        struct dentry *dentry;
+
+        down(&nd->dentry->d_inode->i_sem);
+        dentry = ERR_PTR(-EEXIST);
+        if (nd->last_type != LAST_NORM)
+                goto fail;
+        dentry = lookup_hash(&nd->last, nd->dentry);
+        if (IS_ERR(dentry))
+                goto fail;
+        if (!is_dir && nd->last.name[nd->last.len] && !dentry->d_inode)
+                goto enoent;
+        return dentry;
+enoent:
+        dput(dentry);
+        dentry = ERR_PTR(-ENOENT);
+fail:
+        return dentry;
+}
+
+int lento_create(const char *name, int mode, struct lento_vfs_context *info)
+{
+        int error;
+        struct nameidata nd;
+        char * pathname;
+        struct dentry *dentry;
+        struct presto_file_set *fset;
+
+        ENTRY;
+        pathname = getname(name);
+        error = PTR_ERR(pathname);
+        if (IS_ERR(pathname)) {
+                EXIT;
+                goto exit;
+        }
+
+        /* this looks up the parent */
+//        if (path_init(pathname, LOOKUP_FOLLOW | LOOKUP_POSITIVE, &nd))
+        if (path_init(pathname,  LOOKUP_PARENT, &nd))
+                error = path_walk(pathname, &nd);
+        if (error) {
+                EXIT;
+                goto exit;
+        }
+        dentry = lookup_create(&nd, 0);
+        error = PTR_ERR(dentry);
+        if (IS_ERR(dentry)) {
+                EXIT;
+                goto exit_lock;
+        }
+
+        fset = presto_fset(dentry);
+        error = -EINVAL;
+        if ( !fset ) {
+                CERROR("No fileset!\n");
+                EXIT;
+                goto exit_lock;
+        }
+        error = presto_do_create(fset, dentry->d_parent, dentry, (mode&S_IALLUGO)|S_IFREG,
+                                 info);
+
+        EXIT;
+
+ exit_lock:
+        path_release (&nd);
+        dput(dentry); 
+        up(&dentry->d_parent->d_inode->i_sem);
+        putname(pathname);
+exit:
+        return error;
+}
+
+int presto_do_link(struct presto_file_set *fset, struct dentry *old_dentry,
+                   struct dentry *dir, struct dentry *new_dentry,
+                   struct lento_vfs_context *info)
+{
+        struct rec_info rec;
+        struct inode *inode;
+        int error;
+        struct inode_operations *iops;
+        struct presto_version tgt_dir_ver;
+        struct presto_version new_link_ver;
+        void *handle;
+
+        down(&dir->d_inode->i_zombie);
+        error = presto_reserve_space(fset->fset_cache, PRESTO_REQHIGH); 
+        if (error) {
+                EXIT;
+                up(&dir->d_inode->i_zombie);
+                return error;
+        }
+        error = -ENOENT;
+        inode = old_dentry->d_inode;
+        if (!inode)
+                goto exit_lock;
+
+        error = may_create(dir->d_inode, new_dentry);
+        if (error)
+                goto exit_lock;
+
+        error = -EXDEV;
+        if (dir->d_inode->i_dev != inode->i_dev)
+                goto exit_lock;
+
+        /*
+         * A link to an append-only or immutable file cannot be created.
+         */
+        error = -EPERM;
+        if (IS_APPEND(inode) || IS_IMMUTABLE(inode)) {
+                EXIT;
+                goto exit_lock;
+        }
+
+        iops = filter_c2cdiops(fset->fset_cache->cache_filter);
+        if (!iops->link) {
+                EXIT;
+                goto exit_lock;
+        }
+
+
+        presto_getversion(&tgt_dir_ver, dir->d_inode);
+        handle = presto_trans_start(fset, dir->d_inode, KML_OPCODE_LINK);
+        if ( IS_ERR(handle) ) {
+                presto_release_space(fset->fset_cache, PRESTO_REQHIGH); 
+                CERROR("presto_do_link: no space for transaction\n");
+                return -ENOSPC;
+        }
+
+        DQUOT_INIT(dir->d_inode);
+        lock_kernel();
+        error = iops->link(old_dentry, dir->d_inode, new_dentry);
+        unlock_kernel();
+        if (error) {
+                EXIT;
+                goto exit_lock;
+        }
+
+        /* link dd data to that of existing dentry */
+        old_dentry->d_op->d_release(new_dentry); 
+        if (!presto_d2d(old_dentry)) 
+                BUG();
+        presto_d2d(old_dentry)->dd_count++;
+
+        new_dentry->d_fsdata = presto_d2d(old_dentry);
+
+        info->flags |= LENTO_FL_TOUCH_PARENT;
+        error = presto_settime(fset, NULL, dir, new_dentry,
+                               info, ATTR_CTIME);
+        if (error) { 
+                EXIT;
+                goto exit_lock;
+        }
+
+        presto_debug_fail_blkdev(fset, KML_OPCODE_LINK | 0x10);
+        presto_getversion(&new_link_ver, new_dentry->d_inode);
+        if ( presto_do_kml(info, old_dentry) )
+                error = presto_journal_link(&rec, fset, old_dentry, new_dentry,
+                                            &tgt_dir_ver, &new_link_ver);
+
+        presto_debug_fail_blkdev(fset, KML_OPCODE_LINK | 0x20);
+        if ( presto_do_rcvd(info, old_dentry) )
+                error = presto_write_last_rcvd(&rec, fset, info);
+
+        presto_debug_fail_blkdev(fset, KML_OPCODE_LINK | 0x30);
+        EXIT;
+        presto_trans_commit(fset, handle);
+exit_lock:
+        presto_release_space(fset->fset_cache, PRESTO_REQHIGH); 
+        up(&dir->d_inode->i_zombie);
+        return error;
+}
+
+
+int lento_link(const char * oldname, const char * newname, 
+                         struct lento_vfs_context *info)
+{
+        int error;
+        char * from;
+        char * to;
+        struct presto_file_set *fset;
+
+        from = getname(oldname);
+        if(IS_ERR(from))
+                return PTR_ERR(from);
+        to = getname(newname);
+        error = PTR_ERR(to);
+        if (!IS_ERR(to)) {
+                struct dentry *new_dentry;
+                struct nameidata nd, old_nd;
+
+                error = 0;
+                if (path_init(from, LOOKUP_POSITIVE, &old_nd))
+                        error = path_walk(from, &old_nd);
+                if (error)
+                        goto exit;
+                if (path_init(to, LOOKUP_PARENT, &nd))
+                        error = path_walk(to, &nd);
+                if (error)
+                        goto out;
+                error = -EXDEV;
+                if (old_nd.mnt != nd.mnt)
+                        goto out;
+                new_dentry = lookup_create(&nd, 0);
+                error = PTR_ERR(new_dentry);
+
+                if (!IS_ERR(new_dentry)) {
+                        fset = presto_fset(new_dentry);
+                        error = -EINVAL;
+                        if ( !fset ) {
+                                CERROR("No fileset!\n");
+                                EXIT;
+                                goto out2;
+                        }
+                        error = presto_do_link(fset, old_nd.dentry, 
+                                               nd.dentry,
+                                               new_dentry, info);
+                        dput(new_dentry);
+                }
+        out2:
+                up(&nd.dentry->d_inode->i_sem);
+                path_release(&nd);
+        out:
+                path_release(&old_nd);
+        exit:
+                putname(to);
+        }
+        putname(from);
+
+        return error;
+}
+
+int presto_do_unlink(struct presto_file_set *fset, struct dentry *dir,
+                     struct dentry *dentry, struct lento_vfs_context *info)
+{
+        struct rec_info rec;
+        struct inode_operations *iops;
+        struct presto_version tgt_dir_ver, old_file_ver;
+        struct izo_rollback_data rb;
+        void *handle;
+        int do_kml = 0, do_rcvd = 0, linkno = 0, error, old_targetlen = 0;
+        char *old_target = NULL;
+
+        ENTRY;
+        down(&dir->d_inode->i_zombie);
+        error = may_delete(dir->d_inode, dentry, 0);
+        if (error) {
+                EXIT;
+                up(&dir->d_inode->i_zombie);
+                return error;
+        }
+
+        error = -EPERM;
+        iops = filter_c2cdiops(fset->fset_cache->cache_filter);
+        if (!iops->unlink) {
+                EXIT;
+                up(&dir->d_inode->i_zombie);
+                return error;
+        }
+
+        error = presto_reserve_space(fset->fset_cache, PRESTO_REQLOW); 
+        if (error) {
+                EXIT;
+                up(&dir->d_inode->i_zombie);
+                return error;
+        }
+
+
+        if (presto_d2d(dentry)) { 
+                struct presto_dentry_data *dd = presto_d2d(dentry); 
+                struct dentry *de = dd->dd_inodentry;
+                if (de && dentry->d_inode->i_nlink == 1) { 
+                        dd->dd_count--;
+                        dd->dd_inodentry = NULL; 
+                        de->d_fsdata = NULL; 
+                        atomic_dec(&de->d_inode->i_count); 
+                        de->d_inode = NULL;
+                        dput(de); 
+                }
+        }
+
+        presto_getversion(&tgt_dir_ver, dir->d_inode);
+        presto_getversion(&old_file_ver, dentry->d_inode);
+        izo_get_rollback_data(dentry->d_inode, &rb);
+        handle = presto_trans_start(fset, dir->d_inode, KML_OPCODE_UNLINK);
+        if ( IS_ERR(handle) ) {
+                presto_release_space(fset->fset_cache, PRESTO_REQLOW); 
+                CERROR("ERROR: presto_do_unlink: no space for transaction. Tell Peter.\n");
+                up(&dir->d_inode->i_zombie);
+                return -ENOSPC;
+        }
+        DQUOT_INIT(dir->d_inode);
+        if (d_mountpoint(dentry))
+                error = -EBUSY;
+        else {
+                lock_kernel();
+                linkno = dentry->d_inode->i_nlink;
+                if (linkno > 1) {
+                        dget(dentry);
+                }
+
+                if (S_ISLNK(dentry->d_inode->i_mode)) {
+                        mm_segment_t old_fs;
+                        struct inode_operations *riops;
+                        riops = filter_c2csiops(fset->fset_cache->cache_filter);
+
+                        PRESTO_ALLOC(old_target, PATH_MAX);
+                        if (old_target == NULL) {
+                                error = -ENOMEM;
+                                EXIT;
+                                goto exit;
+                        }
+
+                        old_fs = get_fs();
+                        set_fs(get_ds());
+
+                        if (riops->readlink == NULL)
+                                CERROR("InterMezzo %s: no readlink iops.\n",
+                                       __FUNCTION__);
+                        else
+                                old_targetlen =
+                                        riops->readlink(dentry, old_target,
+                                                        PATH_MAX);
+                        if (old_targetlen < 0) {
+                                CERROR("InterMezzo: readlink failed: %ld\n",
+                                       PTR_ERR(old_target));
+                                PRESTO_FREE(old_target, PATH_MAX);
+                                old_target = NULL;
+                                old_targetlen = 0;
+                        }
+                        set_fs(old_fs);
+                }
+
+                do_kml = presto_do_kml(info, dir);
+                do_rcvd = presto_do_rcvd(info, dir);
+                error = iops->unlink(dir->d_inode, dentry);
+                unlock_kernel();
+                if (!error)
+                        d_delete(dentry);
+        }
+
+        if (linkno > 1) { 
+                /* FIXME: Combine this with the next call? */
+                error = presto_settime(fset, NULL, NULL, dentry,
+                                       info, ATTR_CTIME);
+                dput(dentry); 
+                if (error) { 
+                        EXIT;
+                        goto exit;
+                }
+        }
+
+        error = presto_settime(fset, NULL, NULL, dir,
+                               info, ATTR_CTIME | ATTR_MTIME);
+        if (error) { 
+                EXIT;
+                goto exit;
+        }
+
+        up(&dir->d_inode->i_zombie);
+        if (error) {
+                EXIT;
+                goto exit;
+        }
+
+        presto_debug_fail_blkdev(fset, KML_OPCODE_UNLINK | 0x10);
+        if ( do_kml )
+                error = presto_journal_unlink(&rec, fset, dir, &tgt_dir_ver,
+                                              &old_file_ver, &rb, dentry,
+                                              old_target, old_targetlen);
+        presto_debug_fail_blkdev(fset, KML_OPCODE_UNLINK | 0x20);
+        if ( do_rcvd ) { 
+                error = presto_write_last_rcvd(&rec, fset, info);
+        }
+        presto_debug_fail_blkdev(fset, KML_OPCODE_UNLINK | 0x30);
+        EXIT;
+exit:
+        presto_release_space(fset->fset_cache, PRESTO_REQLOW); 
+        presto_trans_commit(fset, handle);
+        if (old_target != NULL)
+                PRESTO_FREE(old_target, PATH_MAX);
+        return error;
+}
+
+
+int lento_unlink(const char *pathname, struct lento_vfs_context *info)
+{
+        int error = 0;
+        char * name;
+        struct dentry *dentry;
+        struct nameidata nd;
+        struct presto_file_set *fset;
+
+        ENTRY;
+
+        name = getname(pathname);
+        if(IS_ERR(name))
+                return PTR_ERR(name);
+
+        if (path_init(name, LOOKUP_PARENT, &nd))
+                error = path_walk(name, &nd);
+        if (error)
+                goto exit;
+        error = -EISDIR;
+        if (nd.last_type != LAST_NORM)
+                goto exit1;
+        down(&nd.dentry->d_inode->i_sem);
+        dentry = lookup_hash(&nd.last, nd.dentry);
+        error = PTR_ERR(dentry);
+        if (!IS_ERR(dentry)) {
+                fset = presto_fset(dentry);
+                error = -EINVAL;
+                if ( !fset ) {
+                        CERROR("No fileset!\n");
+                        EXIT;
+                        goto exit2;
+                }
+                /* Why not before? Because we want correct error value */
+                if (nd.last.name[nd.last.len])
+                        goto slashes;
+                error = presto_do_unlink(fset, nd.dentry, dentry, info);
+        exit2:
+                EXIT;
+                dput(dentry);
+        }
+        up(&nd.dentry->d_inode->i_sem);
+exit1:
+        path_release(&nd);
+exit:
+        putname(name);
+
+        return error;
+
+slashes:
+        error = !dentry->d_inode ? -ENOENT :
+                S_ISDIR(dentry->d_inode->i_mode) ? -EISDIR : -ENOTDIR;
+        goto exit2;
+}
+
+int presto_do_symlink(struct presto_file_set *fset, struct dentry *dir,
+                      struct dentry *dentry, const char *oldname,
+                      struct lento_vfs_context *info)
+{
+        struct rec_info rec;
+        int error;
+        struct presto_version tgt_dir_ver, new_link_ver;
+        struct inode_operations *iops;
+        void *handle;
+
+        ENTRY;
+        down(&dir->d_inode->i_zombie);
+        /* record + max path len + space to free */ 
+        error = presto_reserve_space(fset->fset_cache, PRESTO_REQHIGH + 4096); 
+        if (error) {
+                EXIT;
+                up(&dir->d_inode->i_zombie);
+                return error;
+        }
+
+        error = may_create(dir->d_inode, dentry);
+        if (error) {
+                EXIT;
+                goto exit_lock;
+        }
+
+        error = -EPERM;
+        iops = filter_c2cdiops(fset->fset_cache->cache_filter);
+        if (!iops->symlink) {
+                EXIT;
+                goto exit_lock;
+        }
+
+        presto_getversion(&tgt_dir_ver, dir->d_inode);
+        handle = presto_trans_start(fset, dir->d_inode, KML_OPCODE_SYMLINK);
+        if ( IS_ERR(handle) ) {
+                presto_release_space(fset->fset_cache, PRESTO_REQHIGH + 4096); 
+                CERROR("ERROR: presto_do_symlink: no space for transaction. Tell Peter.\n"); 
+                EXIT;
+                up(&dir->d_inode->i_zombie);
+                return -ENOSPC;
+        }
+        DQUOT_INIT(dir->d_inode);
+        lock_kernel();
+        error = iops->symlink(dir->d_inode, dentry, oldname);
+        if (error) {
+                EXIT;
+                goto exit;
+        }
+
+        if (dentry->d_inode) {
+                struct presto_cache *cache = fset->fset_cache;
+                
+                presto_set_ops(dentry->d_inode, cache->cache_filter);
+
+                filter_setup_dentry_ops(cache->cache_filter, dentry->d_op, 
+                                        &presto_dentry_ops);
+                dentry->d_op = filter_c2udops(cache->cache_filter);
+                /* XXX ? Cache state ? if Lento creates a symlink */
+                if ( ISLENTO(presto_c2m(cache)) ) {
+                        presto_set(dentry, PRESTO_ATTR);
+                } else {
+                        presto_set(dentry, PRESTO_ATTR | PRESTO_DATA);
+                }
+        }
+
+        info->flags |= LENTO_FL_TOUCH_PARENT;
+        error = presto_settime(fset, NULL, dir, dentry,
+                               info, ATTR_CTIME | ATTR_MTIME);
+        if (error) { 
+                EXIT;
+                goto exit;
+        }
+
+        presto_debug_fail_blkdev(fset, KML_OPCODE_SYMLINK | 0x10);
+        presto_getversion(&new_link_ver, dentry->d_inode);
+        if ( presto_do_kml(info, dentry) )
+                error = presto_journal_symlink(&rec, fset, dentry, oldname,
+                                               &tgt_dir_ver, &new_link_ver);
+
+        presto_debug_fail_blkdev(fset, KML_OPCODE_SYMLINK | 0x20);
+        if ( presto_do_rcvd(info, dentry) )
+                error = presto_write_last_rcvd(&rec, fset, info);
+
+        presto_debug_fail_blkdev(fset, KML_OPCODE_SYMLINK | 0x30);
+        EXIT;
+exit:
+        unlock_kernel();
+        presto_trans_commit(fset, handle);
+ exit_lock:
+        presto_release_space(fset->fset_cache, PRESTO_REQHIGH + 4096); 
+        up(&dir->d_inode->i_zombie);
+        return error;
+}
+
+int lento_symlink(const char *oldname, const char *newname,
+                  struct lento_vfs_context *info)
+{
+        int error;
+        char *from;
+        char *to;
+        struct dentry *dentry;
+        struct presto_file_set *fset;
+        struct nameidata nd;
+
+        ENTRY;
+        lock_kernel();
+        from = getname(oldname);
+        error = PTR_ERR(from);
+        if (IS_ERR(from)) {
+                EXIT;
+                goto exit;
+        }
+
+        to = getname(newname);
+        error = PTR_ERR(to);
+        if (IS_ERR(to)) {
+                EXIT;
+                goto exit_from;
+        }
+
+        if (path_init(to, LOOKUP_PARENT, &nd)) 
+                error = path_walk(to, &nd);
+        if (error) {
+                EXIT;
+                goto exit_to;
+        }
+
+        dentry = lookup_create(&nd, 0);
+        error = PTR_ERR(dentry);
+        if (IS_ERR(dentry)) {
+                path_release(&nd);
+                EXIT;
+                goto exit_to;
+        }
+
+        fset = presto_fset(dentry);
+        error = -EINVAL;
+        if ( !fset ) {
+                CERROR("No fileset!\n");
+                path_release(&nd);
+                EXIT;
+                goto exit_lock;
+        }
+        error = presto_do_symlink(fset, nd.dentry,
+                                  dentry, from, info);
+        path_release(&nd);
+        EXIT;
+ exit_lock:
+        up(&nd.dentry->d_inode->i_sem);
+        dput(dentry);
+ exit_to:
+        putname(to);
+ exit_from:
+        putname(from);
+ exit:
+        unlock_kernel();
+        return error;
+}
+
+int presto_do_mkdir(struct presto_file_set *fset, struct dentry *dir,
+                    struct dentry *dentry, int mode,
+                    struct lento_vfs_context *info)
+{
+        struct rec_info rec;
+        int error;
+        struct presto_version tgt_dir_ver, new_dir_ver;
+        void *handle;
+
+        ENTRY;
+        down(&dir->d_inode->i_zombie);
+
+        /* one journal record + directory block + room for removals*/ 
+        error = presto_reserve_space(fset->fset_cache, PRESTO_REQHIGH + 4096); 
+        if (error) { 
+                EXIT;
+                up(&dir->d_inode->i_zombie);
+                return error;
+        }
+
+        error = may_create(dir->d_inode, dentry);
+        if (error) {
+                EXIT;
+                goto exit_lock;
+        }
+
+        error = -EPERM;
+        if (!filter_c2cdiops(fset->fset_cache->cache_filter)->mkdir) {
+                EXIT;
+                goto exit_lock;
+        }
+
+        error = -ENOSPC;
+        presto_getversion(&tgt_dir_ver, dir->d_inode);
+        handle = presto_trans_start(fset, dir->d_inode, KML_OPCODE_MKDIR);
+        if ( IS_ERR(handle) ) {
+                presto_release_space(fset->fset_cache, PRESTO_REQHIGH + 4096); 
+                CERROR("presto_do_mkdir: no space for transaction\n");
+                goto exit_lock;
+        }
+
+        DQUOT_INIT(dir->d_inode);
+        mode &= (S_IRWXUGO|S_ISVTX);
+        lock_kernel();
+        error = filter_c2cdiops(fset->fset_cache->cache_filter)->mkdir(dir->d_inode, dentry, mode);
+        if (error) {
+                EXIT;
+                goto exit;
+        }
+
+        if ( dentry->d_inode && !error) {
+                struct presto_cache *cache = fset->fset_cache;
+
+                presto_set_ops(dentry->d_inode, cache->cache_filter);
+
+                filter_setup_dentry_ops(cache->cache_filter, 
+                                        dentry->d_op, 
+                                        &presto_dentry_ops);
+                dentry->d_op = filter_c2udops(cache->cache_filter);
+                /* if Lento does this, we won't have data */
+                if ( ISLENTO(presto_c2m(cache)) ) {
+                        presto_set(dentry, PRESTO_ATTR);
+                } else {
+                        presto_set(dentry, PRESTO_ATTR | PRESTO_DATA);
+                }
+        }
+
+        info->flags |= LENTO_FL_TOUCH_PARENT;
+        error = presto_settime(fset, NULL, dir, dentry,
+                             info, ATTR_CTIME | ATTR_MTIME);
+        if (error) { 
+                EXIT;
+                goto exit;
+        }
+
+        presto_debug_fail_blkdev(fset, KML_OPCODE_MKDIR | 0x10);
+        presto_getversion(&new_dir_ver, dentry->d_inode);
+        if ( presto_do_kml(info, dir) )
+                error = presto_journal_mkdir(&rec, fset, dentry, &tgt_dir_ver,
+                                             &new_dir_ver, 
+                                             dentry->d_inode->i_mode);
+
+        presto_debug_fail_blkdev(fset, KML_OPCODE_MKDIR | 0x20);
+        if ( presto_do_rcvd(info, dentry) )
+                error = presto_write_last_rcvd(&rec, fset, info);
+
+        presto_debug_fail_blkdev(fset, KML_OPCODE_MKDIR | 0x30);
+        EXIT;
+exit:
+        unlock_kernel();
+        presto_trans_commit(fset, handle);
+ exit_lock:
+        presto_release_space(fset->fset_cache, PRESTO_REQHIGH + 4096); 
+        up(&dir->d_inode->i_zombie);
+        return error;
+}
+
+/*
+ * Look out: this function may change a normal dentry
+ * into a directory dentry (different size)..
+ */
+int lento_mkdir(const char *name, int mode, struct lento_vfs_context *info)
+{
+        int error;
+        char *pathname;
+        struct dentry *dentry;
+        struct presto_file_set *fset;
+        struct nameidata nd;
+
+        ENTRY;
+        CDEBUG(D_PIOCTL, "name: %s, mode %o, offset %d, recno %d, flags %x\n",
+               name, mode, info->slot_offset, info->recno, info->flags);
+        pathname = getname(name);
+        error = PTR_ERR(pathname);
+        if (IS_ERR(pathname)) {
+                EXIT;
+                return error;
+        }
+
+        if (path_init(pathname, LOOKUP_PARENT, &nd))
+                error = path_walk(pathname, &nd);
+        if (error)
+                goto out_name;
+
+        dentry = lookup_create(&nd, 1);
+        error = PTR_ERR(dentry);
+        if (!IS_ERR(dentry)) {
+                fset = presto_fset(dentry);
+                error = -EINVAL;
+                if (!fset) {
+                        CERROR("No fileset!\n");
+                        EXIT;
+                        goto out_dput;
+                }
+
+                error = presto_do_mkdir(fset, nd.dentry, dentry, 
+                                        mode & S_IALLUGO, info);
+out_dput:
+                dput(dentry);
+        }
+        up(&nd.dentry->d_inode->i_sem);
+        path_release(&nd);
+out_name:
+        EXIT;
+        putname(pathname);
+        CDEBUG(D_PIOCTL, "error: %d\n", error);
+        return error;
+}
+
+static void d_unhash(struct dentry *dentry)
+{
+        dget(dentry);
+        switch (atomic_read(&dentry->d_count)) {
+        default:
+                shrink_dcache_parent(dentry);
+                if (atomic_read(&dentry->d_count) != 2)
+                        break;
+        case 2:
+                d_drop(dentry);
+        }
+}
+
+int presto_do_rmdir(struct presto_file_set *fset, struct dentry *dir,
+                    struct dentry *dentry, struct lento_vfs_context *info)
+{
+        struct rec_info rec;
+        int error;
+        struct presto_version tgt_dir_ver, old_dir_ver;
+        struct izo_rollback_data rb;
+        struct inode_operations *iops;
+        void *handle;
+        int do_kml, do_rcvd;
+        int size;
+
+        ENTRY;
+        error = may_delete(dir->d_inode, dentry, 1);
+        if (error)
+                return error;
+
+        error = -EPERM;
+        iops = filter_c2cdiops(fset->fset_cache->cache_filter);
+        if (!iops->rmdir) {
+                EXIT;
+                return error;
+        }
+
+        size = PRESTO_REQHIGH - dentry->d_inode->i_size; 
+        error = presto_reserve_space(fset->fset_cache, size); 
+        if (error) { 
+                EXIT;
+                return error;
+        }
+
+        presto_getversion(&tgt_dir_ver, dir->d_inode);
+        presto_getversion(&old_dir_ver, dentry->d_inode);
+        izo_get_rollback_data(dentry->d_inode, &rb);
+        handle = presto_trans_start(fset, dir->d_inode, KML_OPCODE_RMDIR);
+        if ( IS_ERR(handle) ) {
+                presto_release_space(fset->fset_cache, size); 
+                CERROR("ERROR: presto_do_rmdir: no space for transaction. Tell Peter.\n");
+                return -ENOSPC;
+        }
+
+        DQUOT_INIT(dir->d_inode);
+
+        do_kml = presto_do_kml(info, dir);
+        do_rcvd = presto_do_rcvd(info, dir);
+
+        double_down(&dir->d_inode->i_zombie, &dentry->d_inode->i_zombie);
+        d_unhash(dentry);
+        if (IS_DEADDIR(dir->d_inode))
+                error = -ENOENT;
+        else if (d_mountpoint(dentry)) {
+                CERROR("foo: d_mountpoint(dentry): ino %ld\n",
+                       dentry->d_inode->i_ino);
+                error = -EBUSY;
+        } else {
+                lock_kernel();
+                error = iops->rmdir(dir->d_inode, dentry);
+                unlock_kernel();
+                if (!error) {
+                        dentry->d_inode->i_flags |= S_DEAD;
+                        error = presto_settime(fset, NULL, NULL, dir, info,
+                                               ATTR_CTIME | ATTR_MTIME);
+                }
+        }
+        double_up(&dir->d_inode->i_zombie, &dentry->d_inode->i_zombie);
+        if (!error)
+                d_delete(dentry);
+        dput(dentry);
+
+        presto_debug_fail_blkdev(fset, KML_OPCODE_RMDIR | 0x10);
+        if ( !error && do_kml )
+                error = presto_journal_rmdir(&rec, fset, dir, &tgt_dir_ver,
+                                             &old_dir_ver, &rb,
+                                             dentry->d_name.len,
+                                             dentry->d_name.name);
+
+        presto_debug_fail_blkdev(fset, KML_OPCODE_RMDIR | 0x20);
+        if ( !error && do_rcvd ) 
+                error = presto_write_last_rcvd(&rec, fset, info);
+
+        presto_debug_fail_blkdev(fset, KML_OPCODE_RMDIR | 0x30);
+        EXIT;
+
+        presto_trans_commit(fset, handle);
+        presto_release_space(fset->fset_cache, size); 
+        return error;
+}
+
+int lento_rmdir(const char *pathname, struct lento_vfs_context *info)
+{
+        int error = 0;
+        char * name;
+        struct dentry *dentry;
+        struct presto_file_set *fset;
+        struct nameidata nd;
+
+        ENTRY;
+        name = getname(pathname);
+        if(IS_ERR(name)) {
+                EXIT;
+                return PTR_ERR(name);
+        }
+
+        if (path_init(name, LOOKUP_PARENT, &nd))
+                error = path_walk(name, &nd);
+        if (error) {
+                EXIT;
+                goto exit;
+        }
+        switch(nd.last_type) {
+        case LAST_DOTDOT:
+                error = -ENOTEMPTY;
+                EXIT;
+                goto exit1;
+        case LAST_ROOT:
+        case LAST_DOT:
+                error = -EBUSY;
+                EXIT;
+                goto exit1;
+        }
+        down(&nd.dentry->d_inode->i_sem);
+        dentry = lookup_hash(&nd.last, nd.dentry);
+        error = PTR_ERR(dentry);
+        if (!IS_ERR(dentry)) {
+                fset = presto_fset(dentry);
+                error = -EINVAL;
+                if ( !fset ) {
+                        CERROR("No fileset!\n");
+                        EXIT;
+                        goto exit_put;
+                }
+                error = presto_do_rmdir(fset, nd.dentry, dentry, info);
+        exit_put:
+                dput(dentry);
+        }
+        up(&nd.dentry->d_inode->i_sem);
+exit1:
+        path_release(&nd);
+exit:
+        putname(name);
+        EXIT;
+        return error;
+}
+
+int presto_do_mknod(struct presto_file_set *fset, struct dentry *dir,
+                    struct dentry *dentry, int mode, dev_t dev,
+                    struct lento_vfs_context *info)
+{
+        struct rec_info rec;
+        int error = -EPERM;
+        struct presto_version tgt_dir_ver, new_node_ver;
+        struct inode_operations *iops;
+        void *handle;
+
+        ENTRY;
+
+        down(&dir->d_inode->i_zombie);
+        /* one KML entry */ 
+        error = presto_reserve_space(fset->fset_cache, PRESTO_REQHIGH); 
+        if (error) {
+                EXIT;
+                up(&dir->d_inode->i_zombie);
+                return error;
+        }
+
+        if ((S_ISCHR(mode) || S_ISBLK(mode)) && !capable(CAP_MKNOD)) {
+                EXIT;
+                goto exit_lock;
+        }
+
+        error = may_create(dir->d_inode, dentry);
+        if (error) {
+                EXIT;
+                goto exit_lock;
+        }
+
+        error = -EPERM;
+        iops = filter_c2cdiops(fset->fset_cache->cache_filter);
+        if (!iops->mknod) {
+                EXIT;
+                goto exit_lock;
+        }
+
+        DQUOT_INIT(dir->d_inode);
+        lock_kernel();
+        
+        error = -ENOSPC;
+        presto_getversion(&tgt_dir_ver, dir->d_inode);
+        handle = presto_trans_start(fset, dir->d_inode, KML_OPCODE_MKNOD);
+        if ( IS_ERR(handle) ) {
+                presto_release_space(fset->fset_cache, PRESTO_REQHIGH); 
+                CERROR("presto_do_mknod: no space for transaction\n");
+                goto exit_lock2;
+        }
+
+        error = iops->mknod(dir->d_inode, dentry, mode, dev);
+        if (error) {
+                EXIT;
+                goto exit_commit;
+        }
+        if ( dentry->d_inode) {
+                struct presto_cache *cache = fset->fset_cache;
+
+                presto_set_ops(dentry->d_inode, cache->cache_filter);
+
+                filter_setup_dentry_ops(cache->cache_filter, dentry->d_op, 
+                                        &presto_dentry_ops);
+                dentry->d_op = filter_c2udops(cache->cache_filter);
+
+                /* if Lento does this, we won't have data */
+                if ( ISLENTO(presto_c2m(cache)) ) {
+                        presto_set(dentry, PRESTO_ATTR);
+                } else {
+                        presto_set(dentry, PRESTO_ATTR | PRESTO_DATA);
+                }
+        }
+
+        error = presto_settime(fset, NULL, NULL, dir,
+                               info, ATTR_MTIME);
+        if (error) { 
+                EXIT;
+        }
+        error = presto_settime(fset, NULL, NULL, dentry,
+                               info, ATTR_CTIME | ATTR_MTIME);
+        if (error) { 
+                EXIT;
+        }
+
+        presto_debug_fail_blkdev(fset, KML_OPCODE_MKNOD | 0x10);
+        presto_getversion(&new_node_ver, dentry->d_inode);
+        if ( presto_do_kml(info, dentry) )
+                error = presto_journal_mknod(&rec, fset, dentry, &tgt_dir_ver,
+                                             &new_node_ver, 
+                                             dentry->d_inode->i_mode,
+                                             MAJOR(dev), MINOR(dev) );
+
+        presto_debug_fail_blkdev(fset, KML_OPCODE_MKNOD | 0x20);
+        if ( presto_do_rcvd(info, dentry) )
+                error = presto_write_last_rcvd(&rec, fset, info);
+
+        presto_debug_fail_blkdev(fset, KML_OPCODE_MKNOD | 0x30);
+        EXIT;
+ exit_commit:
+        presto_trans_commit(fset, handle);
+ exit_lock2:
+        unlock_kernel();
+ exit_lock:
+        presto_release_space(fset->fset_cache, PRESTO_REQHIGH); 
+        up(&dir->d_inode->i_zombie);
+        return error;
+}
+
+int lento_mknod(const char *filename, int mode, dev_t dev,
+                struct lento_vfs_context *info)
+{
+        int error = 0;
+        char * tmp;
+        struct dentry * dentry;
+        struct nameidata nd;
+        struct presto_file_set *fset;
+
+        ENTRY;
+
+        if (S_ISDIR(mode))
+                return -EPERM;
+        tmp = getname(filename);
+        if (IS_ERR(tmp))
+                return PTR_ERR(tmp);
+
+        if (path_init(tmp, LOOKUP_PARENT, &nd))
+                error = path_walk(tmp, &nd);
+        if (error)
+                goto out;
+        dentry = lookup_create(&nd, 0);
+        error = PTR_ERR(dentry);
+        if (!IS_ERR(dentry)) {
+                fset = presto_fset(dentry);
+                error = -EINVAL;
+                if ( !fset ) {
+                        CERROR("No fileset!\n");
+                        EXIT;
+                        goto exit_put;
+                }
+                switch (mode & S_IFMT) {
+                case 0: case S_IFREG:
+                        error = -EOPNOTSUPP;
+                        break;
+                case S_IFCHR: case S_IFBLK: case S_IFIFO: case S_IFSOCK:
+                        error = presto_do_mknod(fset, nd.dentry, dentry, 
+                                                mode, dev, info);
+                        break;
+                case S_IFDIR:
+                        error = -EPERM;
+                        break;
+                default:
+                        error = -EINVAL;
+                }
+        exit_put:
+                dput(dentry);
+        }
+        up(&nd.dentry->d_inode->i_sem);
+        path_release(&nd);
+out:
+        putname(tmp);
+
+        return error;
+}
+
+int do_rename(struct presto_file_set *fset,
+                     struct dentry *old_parent, struct dentry *old_dentry,
+                     struct dentry *new_parent, struct dentry *new_dentry,
+                     struct lento_vfs_context *info)
+{
+        struct rec_info rec;
+        int error;
+        struct inode_operations *iops;
+        struct presto_version src_dir_ver, tgt_dir_ver;
+        void *handle;
+        int new_inode_unlink = 0;
+        struct inode *old_dir = old_parent->d_inode;
+        struct inode *new_dir = new_parent->d_inode;
+
+        ENTRY;
+        presto_getversion(&src_dir_ver, old_dir);
+        presto_getversion(&tgt_dir_ver, new_dir);
+
+        error = -EPERM;
+        iops = filter_c2cdiops(fset->fset_cache->cache_filter);
+        if (!iops || !iops->rename) {
+                EXIT;
+                return error;
+        }
+
+        error = presto_reserve_space(fset->fset_cache, PRESTO_REQHIGH); 
+        if (error) {
+                EXIT;
+                return error;
+        }
+        handle = presto_trans_start(fset, old_dir, KML_OPCODE_RENAME);
+        if ( IS_ERR(handle) ) {
+                presto_release_space(fset->fset_cache, PRESTO_REQHIGH); 
+                CERROR("presto_do_rename: no space for transaction\n");
+                return -ENOSPC;
+        }
+        if (new_dentry->d_inode && new_dentry->d_inode->i_nlink > 1) { 
+                dget(new_dentry); 
+                new_inode_unlink = 1;
+        }
+
+        error = iops->rename(old_dir, old_dentry, new_dir, new_dentry);
+
+        if (error) {
+                EXIT;
+                goto exit;
+        }
+
+        if (new_inode_unlink) { 
+                error = presto_settime(fset, NULL, NULL, old_dentry,
+                                       info, ATTR_CTIME);
+                dput(old_dentry); 
+                if (error) { 
+                        EXIT;
+                        goto exit;
+                }
+        }
+        info->flags |= LENTO_FL_TOUCH_PARENT;
+        error = presto_settime(fset, NULL, new_parent, old_parent,
+                               info, ATTR_CTIME | ATTR_MTIME);
+        if (error) { 
+                EXIT;
+                goto exit;
+        }
+
+        /* XXX make a distinction between cross file set
+         * and intra file set renames here
+         */
+        presto_debug_fail_blkdev(fset, KML_OPCODE_RENAME | 0x10);
+        if ( presto_do_kml(info, old_dentry) )
+                error = presto_journal_rename(&rec, fset, old_dentry,
+                                              new_dentry,
+                                              &src_dir_ver, &tgt_dir_ver);
+
+        presto_debug_fail_blkdev(fset, KML_OPCODE_RENAME | 0x20);
+
+        if ( presto_do_rcvd(info, old_dentry) )
+                error = presto_write_last_rcvd(&rec, fset, info);
+
+        presto_debug_fail_blkdev(fset, KML_OPCODE_RENAME | 0x30);
+        EXIT;
+exit:
+        presto_trans_commit(fset, handle);
+        presto_release_space(fset->fset_cache, PRESTO_REQHIGH); 
+        return error;
+}
+
+static
+int presto_rename_dir(struct presto_file_set *fset, struct dentry *old_parent,
+                      struct dentry *old_dentry, struct dentry *new_parent,
+                      struct dentry *new_dentry, struct lento_vfs_context *info)
+{
+        int error;
+        struct inode *target;
+        struct inode *old_dir = old_parent->d_inode;
+        struct inode *new_dir = new_parent->d_inode;
+
+        if (old_dentry->d_inode == new_dentry->d_inode)
+                return 0;
+
+        error = may_delete(old_dir, old_dentry, 1);
+        if (error)
+                return error;
+
+        if (new_dir->i_dev != old_dir->i_dev)
+                return -EXDEV;
+
+        if (!new_dentry->d_inode)
+                error = may_create(new_dir, new_dentry);
+        else
+                error = may_delete(new_dir, new_dentry, 1);
+        if (error)
+                return error;
+
+        if (!old_dir->i_op || !old_dir->i_op->rename)
+                return -EPERM;
+
+        /*
+         * If we are going to change the parent - check write permissions,
+         * we'll need to flip '..'.
+         */
+        if (new_dir != old_dir) {
+                error = permission(old_dentry->d_inode, MAY_WRITE);
+        }
+        if (error)
+                return error;
+
+        DQUOT_INIT(old_dir);
+        DQUOT_INIT(new_dir);
+        down(&old_dir->i_sb->s_vfs_rename_sem);
+        error = -EINVAL;
+        if (is_subdir(new_dentry, old_dentry))
+                goto out_unlock;
+        target = new_dentry->d_inode;
+        if (target) { /* Hastur! Hastur! Hastur! */
+                triple_down(&old_dir->i_zombie,
+                            &new_dir->i_zombie,
+                            &target->i_zombie);
+                d_unhash(new_dentry);
+        } else
+                double_down(&old_dir->i_zombie,
+                            &new_dir->i_zombie);
+        if (IS_DEADDIR(old_dir)||IS_DEADDIR(new_dir))
+                error = -ENOENT;
+        else if (d_mountpoint(old_dentry)||d_mountpoint(new_dentry))
+                error = -EBUSY;
+        else 
+                error = do_rename(fset, old_parent, old_dentry,
+                                         new_parent, new_dentry, info);
+        if (target) {
+                if (!error)
+                        target->i_flags |= S_DEAD;
+                triple_up(&old_dir->i_zombie,
+                          &new_dir->i_zombie,
+                          &target->i_zombie);
+                if (d_unhashed(new_dentry))
+                        d_rehash(new_dentry);
+                dput(new_dentry);
+        } else
+                double_up(&old_dir->i_zombie,
+                          &new_dir->i_zombie);
+                
+        if (!error)
+                d_move(old_dentry,new_dentry);
+out_unlock:
+        up(&old_dir->i_sb->s_vfs_rename_sem);
+        return error;
+}
+
+static
+int presto_rename_other(struct presto_file_set *fset, struct dentry *old_parent,
+                        struct dentry *old_dentry, struct dentry *new_parent,
+                        struct dentry *new_dentry, struct lento_vfs_context *info)
+{
+        struct inode *old_dir = old_parent->d_inode;
+        struct inode *new_dir = new_parent->d_inode;
+        int error;
+
+        if (old_dentry->d_inode == new_dentry->d_inode)
+                return 0;
+
+        error = may_delete(old_dir, old_dentry, 0);
+        if (error)
+                return error;
+
+        if (new_dir->i_dev != old_dir->i_dev)
+                return -EXDEV;
+
+        if (!new_dentry->d_inode)
+                error = may_create(new_dir, new_dentry);
+        else
+                error = may_delete(new_dir, new_dentry, 0);
+        if (error)
+                return error;
+
+        if (!old_dir->i_op || !old_dir->i_op->rename)
+                return -EPERM;
+
+        DQUOT_INIT(old_dir);
+        DQUOT_INIT(new_dir);
+        double_down(&old_dir->i_zombie, &new_dir->i_zombie);
+        if (d_mountpoint(old_dentry)||d_mountpoint(new_dentry))
+                error = -EBUSY;
+        else
+                error = do_rename(fset, old_parent, old_dentry,
+                                  new_parent, new_dentry, info);
+        double_up(&old_dir->i_zombie, &new_dir->i_zombie);
+        if (error)
+                return error;
+        /* The following d_move() should become unconditional */
+        if (!(old_dir->i_sb->s_type->fs_flags & FS_ODD_RENAME)) {
+                d_move(old_dentry, new_dentry);
+        }
+        return 0;
+}
+
+int presto_do_rename(struct presto_file_set *fset, 
+              struct dentry *old_parent, struct dentry *old_dentry,
+              struct dentry *new_parent, struct dentry *new_dentry,
+              struct lento_vfs_context *info)
+{
+        if (S_ISDIR(old_dentry->d_inode->i_mode))
+                return presto_rename_dir(fset, old_parent,old_dentry,new_parent,
+                                      new_dentry, info);
+        else
+                return presto_rename_other(fset, old_parent, old_dentry,
+                                           new_parent,new_dentry, info);
+}
+
+
+int lento_do_rename(const char *oldname, const char *newname,
+                 struct lento_vfs_context *info)
+{
+        int error = 0;
+        struct dentry * old_dir, * new_dir;
+        struct dentry * old_dentry, *new_dentry;
+        struct nameidata oldnd, newnd;
+        struct presto_file_set *fset;
+
+        ENTRY;
+
+        if (path_init(oldname, LOOKUP_PARENT, &oldnd))
+                error = path_walk(oldname, &oldnd);
+
+        if (error)
+                goto exit;
+
+        if (path_init(newname, LOOKUP_PARENT, &newnd))
+                error = path_walk(newname, &newnd);
+        if (error)
+                goto exit1;
+
+        error = -EXDEV;
+        if (oldnd.mnt != newnd.mnt)
+                goto exit2;
+
+        old_dir = oldnd.dentry;
+        error = -EBUSY;
+        if (oldnd.last_type != LAST_NORM)
+                goto exit2;
+
+        new_dir = newnd.dentry;
+        if (newnd.last_type != LAST_NORM)
+                goto exit2;
+
+        double_lock(new_dir, old_dir);
+
+        old_dentry = lookup_hash(&oldnd.last, old_dir);
+        error = PTR_ERR(old_dentry);
+        if (IS_ERR(old_dentry))
+                goto exit3;
+        /* source must exist */
+        error = -ENOENT;
+        if (!old_dentry->d_inode)
+                goto exit4;
+        fset = presto_fset(old_dentry);
+        error = -EINVAL;
+        if ( !fset ) {
+                CERROR("No fileset!\n");
+                EXIT;
+                goto exit4;
+        }
+        /* unless the source is a directory trailing slashes give -ENOTDIR */
+        if (!S_ISDIR(old_dentry->d_inode->i_mode)) {
+                error = -ENOTDIR;
+                if (oldnd.last.name[oldnd.last.len])
+                        goto exit4;
+                if (newnd.last.name[newnd.last.len])
+                        goto exit4;
+        }
+        new_dentry = lookup_hash(&newnd.last, new_dir);
+        error = PTR_ERR(new_dentry);
+        if (IS_ERR(new_dentry))
+                goto exit4;
+
+        lock_kernel();
+        error = presto_do_rename(fset, old_dir, old_dentry,
+                                   new_dir, new_dentry, info);
+        unlock_kernel();
+
+        dput(new_dentry);
+exit4:
+        dput(old_dentry);
+exit3:
+        double_up(&new_dir->d_inode->i_sem, &old_dir->d_inode->i_sem);
+exit2:
+        path_release(&newnd);
+exit1:
+        path_release(&oldnd);
+exit:
+        return error;
+}
+
+int  lento_rename(const char * oldname, const char * newname,
+                  struct lento_vfs_context *info)
+{
+        int error;
+        char * from;
+        char * to;
+
+        from = getname(oldname);
+        if(IS_ERR(from))
+                return PTR_ERR(from);
+        to = getname(newname);
+        error = PTR_ERR(to);
+        if (!IS_ERR(to)) {
+                error = lento_do_rename(from,to, info);
+                putname(to);
+        } 
+        putname(from);
+        return error;
+}
+
+struct dentry *presto_iopen(struct dentry *dentry,
+                            ino_t ino, unsigned int generation)
+{
+        struct presto_file_set *fset;
+        char name[48];
+        int error;
+
+        ENTRY;
+        /* see if we already have the dentry we want */
+        if (dentry->d_inode && dentry->d_inode->i_ino == ino &&
+            dentry->d_inode->i_generation == generation) {
+                EXIT;
+                return dentry;
+        }
+
+        /* Make sure we have a cache beneath us.  We should always find at
+         * least one dentry inside the cache (if it exists), otherwise not
+         * even the cache root exists, or we passed in a bad name.
+         */
+        fset = presto_fset(dentry);
+        error = -EINVAL;
+        if (!fset) {
+                CERROR("No fileset for %*s!\n",
+                       dentry->d_name.len, dentry->d_name.name);
+                EXIT;
+                dput(dentry);
+                return ERR_PTR(error);
+        }
+        dput(dentry);
+
+        sprintf(name, "%s%#lx%c%#x",
+                PRESTO_ILOOKUP_MAGIC, ino, PRESTO_ILOOKUP_SEP, generation);
+        CDEBUG(D_PIOCTL, "opening %ld by number (as %s)\n", ino, name);
+        return lookup_one_len(name, fset->fset_dentry, strlen(name));
+}
+
+static struct file *presto_filp_dopen(struct dentry *dentry, int flags)
+{
+        struct file *f;
+        struct inode *inode;
+        int flag, error;
+
+        ENTRY;
+        error = -ENFILE;
+        f = get_empty_filp();
+        if (!f) {
+                CDEBUG(D_PIOCTL, "error getting file pointer\n");
+                EXIT;
+                goto out;
+        }
+        f->f_flags = flag = flags;
+        f->f_mode = (flag+1) & O_ACCMODE;
+        inode = dentry->d_inode;
+        if (f->f_mode & FMODE_WRITE) {
+                error = get_write_access(inode);
+                if (error) {
+                        CDEBUG(D_PIOCTL, "error getting write access\n");
+                        EXIT;                        goto cleanup_file;
+                }
+        }
+
+        f->f_dentry = dentry;
+        f->f_pos = 0;
+        f->f_reada = 0;
+        f->f_op = NULL;
+        if (inode->i_op)
+                /* XXX should we set to presto ops, or leave at cache ops? */
+                f->f_op = inode->i_fop;
+        if (f->f_op && f->f_op->open) {
+                error = f->f_op->open(inode, f);
+                if (error) {
+                        CDEBUG(D_PIOCTL, "error calling cache 'open'\n");
+                        EXIT;
+                        goto cleanup_all;
+                }
+        }
+        f->f_flags &= ~(O_CREAT | O_EXCL | O_NOCTTY | O_TRUNC);
+
+        return f;
+
+cleanup_all:
+        if (f->f_mode & FMODE_WRITE)
+                put_write_access(inode);
+cleanup_file:
+        put_filp(f);
+out:
+        return ERR_PTR(error);
+}
+
+
+/* Open an inode by number.  We pass in the cache root name (or a subdirectory
+ * from the cache that is guaranteed to exist) to be able to access the cache.
+ */
+int lento_iopen(const char *name, ino_t ino, unsigned int generation,
+                int flags)
+{
+        char * tmp;
+        struct dentry *dentry;
+        struct nameidata nd;
+        int fd;
+        int error;
+
+        ENTRY;
+        CDEBUG(D_PIOCTL,
+               "open %s:inode %#lx (%ld), generation %x (%d), flags %d \n",
+               name, ino, ino, generation, generation, flags);
+        /* We don't allow creation of files by number only, as it would
+         * lead to a dangling files not in any directory.  We could also
+         * just turn off the flag and ignore it.
+         */
+        if (flags & O_CREAT) {
+                CERROR("%s: create file by inode number (%ld) not allowed\n",
+                       __FUNCTION__, ino);
+                EXIT;
+                return -EACCES;
+        }
+
+        tmp = getname(name);
+        if (IS_ERR(tmp)) {
+                EXIT;
+                return PTR_ERR(tmp);
+        }
+
+        lock_kernel();
+again:  /* look the named file or a parent directory so we can get the cache */
+        error = presto_walk(tmp, &nd);
+        if ( error && error != -ENOENT ) {
+                EXIT;
+                unlock_kernel();
+                putname(tmp);
+                return error;
+        } 
+        if (error == -ENOENT)
+                dentry = NULL;
+        else 
+                dentry = nd.dentry;
+
+        /* we didn't find the named file, so see if a parent exists */
+        if (!dentry) {
+                char *slash;
+
+                slash = strrchr(tmp, '/');
+                if (slash && slash != tmp) {
+                        *slash = '\0';
+                        path_release(&nd);
+                        goto again;
+                }
+                /* we should never get here... */
+                CDEBUG(D_PIOCTL, "no more path components to try!\n");
+                fd = -ENOENT;
+                goto exit;
+        }
+        CDEBUG(D_PIOCTL, "returned dentry %p\n", dentry);
+
+        dentry = presto_iopen(dentry, ino, generation);
+        fd = PTR_ERR(dentry);
+        if (IS_ERR(dentry)) {
+                EXIT;
+                goto exit;
+        }
+
+        /* XXX start of code that might be replaced by something like:
+         * if (flags & (O_WRONLY | O_RDWR)) {
+         *      error = get_write_access(dentry->d_inode);
+         *      if (error) {
+         *              EXIT;
+         *              goto cleanup_dput;
+         *      }
+         * }
+         * fd = open_dentry(dentry, flags);
+         *
+         * including the presto_filp_dopen() function (check dget counts!)
+         */
+        fd = get_unused_fd();
+        if (fd < 0) {
+                EXIT;
+                goto exit;
+        }
+
+        {
+                int error;
+                struct file * f = presto_filp_dopen(dentry, flags);
+                error = PTR_ERR(f);
+                if (IS_ERR(f)) {
+                        put_unused_fd(fd);
+                        fd = error;
+                } else {
+                        fd_install(fd, f);
+                }
+        }
+        /* end of code that might be replaced by open_dentry */
+
+        EXIT;
+exit:
+        unlock_kernel();
+        path_release(&nd);
+        putname(tmp);
+        return fd;
+}
+
+#ifdef CONFIG_FS_EXT_ATTR
+
+#ifdef CONFIG_FS_POSIX_ACL
+/* Posix ACL code changes i_mode without using a notify_change (or
+ * a mark_inode_dirty!). We need to duplicate this at the reintegrator
+ * which is done by this function. This function also takes care of 
+ * resetting the cached posix acls in this inode. If we don't reset these
+ * VFS continues using the old acl information, which by now may be out of
+ * date.
+ */
+int presto_setmode(struct presto_file_set *fset, struct dentry *dentry,
+                   mode_t mode)
+{
+        struct inode *inode = dentry->d_inode;
+
+        ENTRY;
+        /* The extended attributes for this inode were modified. 
+         * At this point we can not be sure if any of the ACL 
+         * information for this inode was updated. So we will 
+         * force VFS to reread the acls. Note that we do this 
+         * only when called from the SETEXTATTR ioctl, which is why we
+         * do this while setting the mode of the file. Also note
+         * that mark_inode_dirty is not be needed for i_*acl only
+         * to force i_mode info to disk, and should be removed once
+         * we use notify_change to update the mode.
+         * XXX: is mode setting really needed? Just setting acl's should
+         * be enough! VFS should change the i_mode as needed? SHP
+         */
+        if (inode->i_acl && 
+            inode->i_acl != POSIX_ACL_NOT_CACHED) 
+            posix_acl_release(inode->i_acl);
+        if (inode->i_default_acl && 
+            inode->i_default_acl != POSIX_ACL_NOT_CACHED) 
+            posix_acl_release(inode->i_default_acl);
+        inode->i_acl = POSIX_ACL_NOT_CACHED;
+        inode->i_default_acl = POSIX_ACL_NOT_CACHED;
+        inode->i_mode = mode;
+        /* inode should already be dirty...but just in case */
+        mark_inode_dirty(inode);
+        return 0;
+
+#if 0
+        /* XXX: The following code is the preferred way to set mode, 
+         * however, I need to carefully go through possible recursion
+         * paths back into presto. See comments in presto_do_setattr.
+         */
+        {    
+        int error=0; 
+        struct super_operations *sops;
+        struct iattr iattr;
+
+        iattr.ia_mode = mode;
+        iattr.ia_valid = ATTR_MODE|ATTR_FORCE;
+
+        error = -EPERM;
+        sops = filter_c2csops(fset->fset_cache->cache_filter); 
+        if (!sops &&
+            !sops->notify_change) {
+                EXIT;
+                return error;
+        }
+
+        error = sops->notify_change(dentry, &iattr);
+
+        EXIT;
+        return error;
+        }
+#endif
+}
+#endif
+
+/* setextattr Interface to cache filesystem */
+int presto_do_set_ext_attr(struct presto_file_set *fset, 
+                           struct dentry *dentry, 
+                           const char *name, void *buffer,
+                           size_t buffer_len, int flags, mode_t *mode,
+                           struct lento_vfs_context *info) 
+{
+        struct rec_info rec;
+        struct inode *inode = dentry->d_inode;
+        struct inode_operations *iops;
+        int error;
+        struct presto_version ver;
+        void *handle;
+        char temp[PRESTO_EXT_ATTR_NAME_MAX+1];
+
+        ENTRY;
+        error = -EROFS;
+        if (IS_RDONLY(inode)) {
+                EXIT;
+                return -EROFS;
+        }
+
+        if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) {
+                EXIT;
+                return -EPERM;
+        }
+
+        presto_getversion(&ver, inode);
+        error = -EPERM;
+        /* We need to invoke different filters based on whether
+         * this dentry is a regular file, directory or symlink.
+         */
+        switch (inode->i_mode & S_IFMT) {
+                case S_IFLNK: /* symlink */
+                    iops = filter_c2csiops(fset->fset_cache->cache_filter); 
+                    break;
+                case S_IFDIR: /* directory */
+                    iops = filter_c2cdiops(fset->fset_cache->cache_filter); 
+                    break;
+                case S_IFREG:
+                default: /* everything else including regular files */
+                    iops = filter_c2cfiops(fset->fset_cache->cache_filter); 
+        }
+
+        if (!iops && !iops->set_ext_attr) {
+                EXIT;
+                return error;
+        }
+
+        error = presto_reserve_space(fset->fset_cache, PRESTO_REQHIGH); 
+        if (error) {
+                EXIT;
+                return error;
+        }
+
+        
+        handle = presto_trans_start(fset,dentry->d_inode,KML_OPCODE_SETEXTATTR);
+        if ( IS_ERR(handle) ) {
+                CERROR("presto_do_set_ext_attr: no space for transaction\n");
+                presto_release_space(fset->fset_cache, PRESTO_REQHIGH); 
+                return -ENOSPC;
+        }
+
+        /* We first "truncate" name to the maximum allowable in presto */
+        /* This simulates the strncpy_from_use code in fs/ext_attr.c */
+        strncpy(temp,name,sizeof(temp));
+
+        /* Pass down to cache*/
+        error = iops->set_ext_attr(inode,temp,buffer,buffer_len,flags);
+        if (error) {
+                EXIT;
+                goto exit;
+        }
+
+#ifdef CONFIG_FS_POSIX_ACL
+        /* Reset mode if specified*/
+        /* XXX: when we do native acl support, move this code out! */
+        if (mode != NULL) {
+                error = presto_setmode(fset, dentry, *mode);
+                if (error) { 
+                    EXIT;
+                    goto exit;
+                }
+        }
+#endif
+
+        /* Reset ctime. Only inode change time (ctime) is affected */
+        error = presto_settime(fset, NULL, NULL, dentry, info, ATTR_CTIME);
+        if (error) { 
+                EXIT;
+                goto exit;
+        }
+
+        if (flags & EXT_ATTR_FLAG_USER) {
+                CERROR(" USER flag passed to presto_do_set_ext_attr!\n");
+                BUG();
+        }
+
+        /* We are here, so set_ext_attr succeeded. We no longer need to keep
+         * track of EXT_ATTR_FLAG_{EXISTS,CREATE}, instead, we will force
+         * the attribute value during log replay. -SHP
+         */
+        flags &= ~(EXT_ATTR_FLAG_EXISTS | EXT_ATTR_FLAG_CREATE);
+
+        presto_debug_fail_blkdev(fset, KML_OPCODE_SETEXTATTR | 0x10);
+        if ( presto_do_kml(info, dentry) )
+                error = presto_journal_set_ext_attr
+                        (&rec, fset, dentry, &ver, name, buffer, 
+                         buffer_len, flags);
+
+        presto_debug_fail_blkdev(fset, KML_OPCODE_SETEXTATTR | 0x20);
+        if ( presto_do_rcvd(info, dentry) )
+                error = presto_write_last_rcvd(&rec, fset, info);
+
+        presto_debug_fail_blkdev(fset, KML_OPCODE_SETEXTATTR | 0x30);
+        EXIT;
+exit:
+        presto_release_space(fset->fset_cache, PRESTO_REQHIGH); 
+        presto_trans_commit(fset, handle);
+
+        return error;
+}
+#endif
diff --git a/fs/iobuf.c b/fs/iobuf.c
new file mode 100644
index 00000000000000..981e8cbfbf675c
--- /dev/null
+++ b/fs/iobuf.c
@@ -0,0 +1,186 @@
+/*
+ * iobuf.c
+ *
+ * Keep track of the general-purpose IO-buffer structures used to track
+ * abstract kernel-space io buffers.
+ * 
+ */
+
+#include <linux/iobuf.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+
+
+static kmem_cache_t *kiobuf_cachep;
+
+void end_kio_request(struct kiobuf *kiobuf, int uptodate)
+{
+	if ((!uptodate) && !kiobuf->errno)
+		kiobuf->errno = -EIO;
+
+	if (atomic_dec_and_test(&kiobuf->io_count)) {
+		if (kiobuf->end_io)
+			kiobuf->end_io(kiobuf);
+		wake_up(&kiobuf->wait_queue);
+	}
+}
+
+static int kiobuf_init(struct kiobuf *iobuf)
+{
+	init_waitqueue_head(&iobuf->wait_queue);
+	iobuf->array_len = 0;
+	iobuf->nr_pages = 0;
+	iobuf->locked = 0;
+	iobuf->bh = NULL;
+	iobuf->blocks = NULL;
+	atomic_set(&iobuf->io_count, 0);
+	iobuf->end_io = NULL;
+	return expand_kiobuf(iobuf, KIO_STATIC_PAGES);
+}
+
+int alloc_kiobuf_bhs(struct kiobuf * kiobuf)
+{
+	int i;
+
+	kiobuf->blocks =
+		kmalloc(sizeof(*kiobuf->blocks) * KIO_MAX_SECTORS, GFP_KERNEL);
+	if (unlikely(!kiobuf->blocks))
+		goto nomem;
+	kiobuf->bh =
+		kmalloc(sizeof(*kiobuf->bh) * KIO_MAX_SECTORS, GFP_KERNEL);
+	if (unlikely(!kiobuf->bh))
+		goto nomem;
+
+	for (i = 0; i < KIO_MAX_SECTORS; i++) {
+		kiobuf->bh[i] = kmem_cache_alloc(bh_cachep, GFP_KERNEL);
+		if (unlikely(!kiobuf->bh[i]))
+			goto nomem2;
+	}
+
+	return 0;
+
+nomem2:
+	while (i--) {
+		kmem_cache_free(bh_cachep, kiobuf->bh[i]);
+		kiobuf->bh[i] = NULL;
+	}
+	memset(kiobuf->bh, 0, sizeof(*kiobuf->bh) * KIO_MAX_SECTORS);
+
+nomem:
+	free_kiobuf_bhs(kiobuf);
+	return -ENOMEM;
+}
+
+void free_kiobuf_bhs(struct kiobuf * kiobuf)
+{
+	int i;
+
+	if (kiobuf->bh) {
+		for (i = 0; i < KIO_MAX_SECTORS; i++)
+			if (kiobuf->bh[i])
+				kmem_cache_free(bh_cachep, kiobuf->bh[i]);
+		kfree(kiobuf->bh);
+		kiobuf->bh = NULL;
+	}
+
+	if (kiobuf->blocks) {
+		kfree(kiobuf->blocks);
+		kiobuf->blocks = NULL;
+	}
+}
+
+int alloc_kiovec(int nr, struct kiobuf **bufp)
+{
+	int i;
+	struct kiobuf *iobuf;
+	
+	for (i = 0; i < nr; i++) {
+		iobuf = kmem_cache_alloc(kiobuf_cachep, GFP_KERNEL);
+		if (unlikely(!iobuf))
+			goto nomem;
+		if (unlikely(kiobuf_init(iobuf)))
+			goto nomem2;
+ 		if (unlikely(alloc_kiobuf_bhs(iobuf)))
+			goto nomem2;
+		bufp[i] = iobuf;
+	}
+	
+	return 0;
+
+nomem2:
+	kmem_cache_free(kiobuf_cachep, iobuf);
+nomem:
+	free_kiovec(i, bufp);
+	return -ENOMEM;
+}
+
+void free_kiovec(int nr, struct kiobuf **bufp) 
+{
+	int i;
+	struct kiobuf *iobuf;
+	
+	for (i = 0; i < nr; i++) {
+		iobuf = bufp[i];
+		if (iobuf->locked)
+			unlock_kiovec(1, &iobuf);
+		kfree(iobuf->maplist);
+		free_kiobuf_bhs(iobuf);
+		kmem_cache_free(kiobuf_cachep, bufp[i]);
+	}
+}
+
+int expand_kiobuf(struct kiobuf *iobuf, int wanted)
+{
+	struct page ** maplist;
+	
+	if (iobuf->array_len >= wanted)
+		return 0;
+	
+	maplist = kmalloc(wanted * sizeof(struct page **), GFP_KERNEL);
+	if (unlikely(!maplist))
+		return -ENOMEM;
+
+	/* Did it grow while we waited? */
+	if (unlikely(iobuf->array_len >= wanted)) {
+		kfree(maplist);
+		return 0;
+	}
+
+	if (iobuf->array_len) {
+		memcpy(maplist, iobuf->maplist, iobuf->array_len * sizeof(*maplist));
+		kfree(iobuf->maplist);
+	}
+	
+	iobuf->maplist   = maplist;
+	iobuf->array_len = wanted;
+	return 0;
+}
+
+void kiobuf_wait_for_io(struct kiobuf *kiobuf)
+{
+	struct task_struct *tsk = current;
+	DECLARE_WAITQUEUE(wait, tsk);
+
+	if (atomic_read(&kiobuf->io_count) == 0)
+		return;
+
+	add_wait_queue(&kiobuf->wait_queue, &wait);
+repeat:
+	set_task_state(tsk, TASK_UNINTERRUPTIBLE);
+	if (atomic_read(&kiobuf->io_count) != 0) {
+		run_task_queue(&tq_disk);
+		schedule();
+		if (atomic_read(&kiobuf->io_count) != 0)
+			goto repeat;
+	}
+	tsk->state = TASK_RUNNING;
+	remove_wait_queue(&kiobuf->wait_queue, &wait);
+}
+
+void __init iobuf_cache_init(void)
+{
+	kiobuf_cachep = kmem_cache_create("kiobuf", sizeof(struct kiobuf),
+					  0, SLAB_HWCACHE_ALIGN, NULL, NULL);
+	if (!kiobuf_cachep)
+		panic("Cannot create kiobuf SLAB cache");
+}
diff --git a/fs/ioctl.c b/fs/ioctl.c
new file mode 100644
index 00000000000000..daf20f094995bd
--- /dev/null
+++ b/fs/ioctl.c
@@ -0,0 +1,126 @@
+/*
+ *  linux/fs/ioctl.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ */
+
+#include <linux/mm.h>
+#include <linux/smp_lock.h>
+#include <linux/file.h>
+
+#include <asm/uaccess.h>
+#include <asm/ioctls.h>
+
+static int file_ioctl(struct file *filp,unsigned int cmd,unsigned long arg)
+{
+	int error;
+	int block;
+	struct inode * inode = filp->f_dentry->d_inode;
+
+	switch (cmd) {
+		case FIBMAP:
+		{
+			struct address_space *mapping = inode->i_mapping;
+			int res;
+			/* do we support this mess? */
+			if (!mapping->a_ops->bmap)
+				return -EINVAL;
+			if (!capable(CAP_SYS_RAWIO))
+				return -EPERM;
+			if ((error = get_user(block, (int *) arg)) != 0)
+				return error;
+
+			res = mapping->a_ops->bmap(mapping, block);
+			return put_user(res, (int *) arg);
+		}
+		case FIGETBSZ:
+			if (inode->i_sb == NULL)
+				return -EBADF;
+			return put_user(inode->i_sb->s_blocksize, (int *) arg);
+		case FIONREAD:
+			return put_user(inode->i_size - filp->f_pos, (int *) arg);
+	}
+	if (filp->f_op && filp->f_op->ioctl)
+		return filp->f_op->ioctl(inode, filp, cmd, arg);
+	return -ENOTTY;
+}
+
+
+asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
+{	
+	struct file * filp;
+	unsigned int flag;
+	int on, error = -EBADF;
+
+	filp = fget(fd);
+	if (!filp)
+		goto out;
+	error = 0;
+	lock_kernel();
+	switch (cmd) {
+		case FIOCLEX:
+			set_close_on_exec(fd, 1);
+			break;
+
+		case FIONCLEX:
+			set_close_on_exec(fd, 0);
+			break;
+
+		case FIONBIO:
+			if ((error = get_user(on, (int *)arg)) != 0)
+				break;
+			flag = O_NONBLOCK;
+#ifdef __sparc__
+			/* SunOS compatibility item. */
+			if(O_NONBLOCK != O_NDELAY)
+				flag |= O_NDELAY;
+#endif
+			if (on)
+				filp->f_flags |= flag;
+			else
+				filp->f_flags &= ~flag;
+			break;
+
+		case FIOASYNC:
+			if ((error = get_user(on, (int *)arg)) != 0)
+				break;
+			flag = on ? FASYNC : 0;
+
+			/* Did FASYNC state change ? */
+			if ((flag ^ filp->f_flags) & FASYNC) {
+				if (filp->f_op && filp->f_op->fasync)
+					error = filp->f_op->fasync(fd, filp, on);
+				else error = -ENOTTY;
+			}
+			if (error != 0)
+				break;
+
+			if (on)
+				filp->f_flags |= FASYNC;
+			else
+				filp->f_flags &= ~FASYNC;
+			break;
+
+		case FIOQSIZE:
+			if (S_ISDIR(filp->f_dentry->d_inode->i_mode) ||
+			    S_ISREG(filp->f_dentry->d_inode->i_mode) ||
+			    S_ISLNK(filp->f_dentry->d_inode->i_mode)) {
+				loff_t res = inode_get_bytes(filp->f_dentry->d_inode);
+				error = copy_to_user((loff_t *)arg, &res, sizeof(res)) ? -EFAULT : 0;
+			}
+			else
+				error = -ENOTTY;
+			break;
+		default:
+			error = -ENOTTY;
+			if (S_ISREG(filp->f_dentry->d_inode->i_mode))
+				error = file_ioctl(filp, cmd, arg);
+			else if (filp->f_op && filp->f_op->ioctl)
+				error = filp->f_op->ioctl(filp->f_dentry->d_inode, filp, cmd, arg);
+	}
+	unlock_kernel();
+	fput(filp);
+
+out:
+	return error;
+}
diff --git a/fs/isofs/Makefile b/fs/isofs/Makefile
new file mode 100644
index 00000000000000..e35ceba0c6b57f
--- /dev/null
+++ b/fs/isofs/Makefile
@@ -0,0 +1,20 @@
+#
+# Makefile for the Linux isofs filesystem routines.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile.
+
+O_TARGET := isofs.o
+
+obj-y  := namei.o inode.o dir.o util.o rock.o
+obj-$(CONFIG_JOLIET) += joliet.o
+obj-$(CONFIG_ZISOFS) += compress.o
+
+obj-m  := $(O_TARGET)
+
+CFLAGS_compress.o := -I $(TOPDIR)/fs/inflate_fs
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/isofs/compress.c b/fs/isofs/compress.c
new file mode 100644
index 00000000000000..022454151c3d15
--- /dev/null
+++ b/fs/isofs/compress.c
@@ -0,0 +1,360 @@
+/* -*- linux-c -*- ------------------------------------------------------- *
+ *   
+ *   Copyright 2001 H. Peter Anvin - All Rights Reserved
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, Inc., 675 Mass Ave, Cambridge MA 02139,
+ *   USA; either version 2 of the License, or (at your option) any later
+ *   version; incorporated herein by reference.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * linux/fs/isofs/compress.c
+ *
+ * Transparent decompression of files on an iso9660 filesystem
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+
+#include <linux/stat.h>
+#include <linux/sched.h>
+#include <linux/iso_fs.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/mm.h>
+#include <linux/string.h>
+#include <linux/locks.h>
+#include <linux/slab.h>
+#include <linux/errno.h>
+#include <linux/cdrom.h>
+#include <linux/init.h>
+#include <linux/nls.h>
+#include <linux/ctype.h>
+#include <linux/smp_lock.h>
+#include <linux/blkdev.h>
+#include <linux/vmalloc.h>
+#include <linux/zlib.h>
+
+#include <asm/system.h>
+#include <asm/uaccess.h>
+#include <asm/semaphore.h>
+
+#include "zisofs.h"
+
+/* This should probably be global. */
+static char zisofs_sink_page[PAGE_CACHE_SIZE];
+
+/*
+ * This contains the zlib memory allocation and the mutex for the
+ * allocation; this avoids failures at block-decompression time.
+ */
+static void *zisofs_zlib_workspace;
+static struct semaphore zisofs_zlib_semaphore;
+
+/*
+ * When decompressing, we typically obtain more than one page
+ * per reference.  We inject the additional pages into the page
+ * cache as a form of readahead.
+ */
+static int zisofs_readpage(struct file *file, struct page *page)
+{
+	struct inode *inode = file->f_dentry->d_inode;
+	struct address_space *mapping = inode->i_mapping;
+	unsigned int maxpage, xpage, fpage, blockindex;
+	unsigned long offset;
+	unsigned long blockptr, blockendptr, cstart, cend, csize;
+	struct buffer_head *bh, *ptrbh[2];
+	unsigned long bufsize = ISOFS_BUFFER_SIZE(inode);
+	unsigned int bufshift = ISOFS_BUFFER_BITS(inode);
+	unsigned long bufmask  = bufsize - 1;
+	int err = -EIO;
+	int i;
+	unsigned int header_size = inode->u.isofs_i.i_format_parm[0];
+	unsigned int zisofs_block_shift = inode->u.isofs_i.i_format_parm[1];
+	/* unsigned long zisofs_block_size = 1UL << zisofs_block_shift; */
+	unsigned int zisofs_block_page_shift = zisofs_block_shift-PAGE_CACHE_SHIFT;
+	unsigned long zisofs_block_pages = 1UL << zisofs_block_page_shift;
+	unsigned long zisofs_block_page_mask = zisofs_block_pages-1;
+	struct page *pages[zisofs_block_pages];
+	unsigned long index = page->index;
+	int indexblocks;
+
+	/* We have already been given one page, this is the one
+	   we must do. */
+	xpage = index & zisofs_block_page_mask;
+	pages[xpage] = page;
+ 
+	/* The remaining pages need to be allocated and inserted */
+	offset = index & ~zisofs_block_page_mask;
+	blockindex = offset >> zisofs_block_page_shift;
+	maxpage = (inode->i_size + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+	maxpage = min(zisofs_block_pages, maxpage-offset);
+
+	for ( i = 0 ; i < maxpage ; i++, offset++ ) {
+		if ( i != xpage ) {
+			pages[i] = grab_cache_page_nowait(mapping, offset);
+		}
+		page = pages[i];
+		if ( page ) {
+			ClearPageError(page);
+			kmap(page);
+		}
+	}
+
+	/* This is the last page filled, plus one; used in case of abort. */
+	fpage = 0;
+
+	/* Find the pointer to this specific chunk */
+	/* Note: we're not using isonum_731() here because the data is known aligned */
+	/* Note: header_size is in 32-bit words (4 bytes) */
+	blockptr = (header_size + blockindex) << 2;
+	blockendptr = blockptr + 4;
+
+	indexblocks = ((blockptr^blockendptr) >> bufshift) ? 2 : 1;
+	ptrbh[0] = ptrbh[1] = 0;
+
+	if ( isofs_get_blocks(inode, blockptr >> bufshift, ptrbh, indexblocks) != indexblocks ) {
+		if ( ptrbh[0] ) brelse(ptrbh[0]);
+		printk(KERN_DEBUG "zisofs: Null buffer on reading block table, inode = %lu, block = %lu\n",
+		       inode->i_ino, blockptr >> bufshift);
+		goto eio;
+	}
+	ll_rw_block(READ, indexblocks, ptrbh);
+
+	bh = ptrbh[0];
+	if ( !bh || (wait_on_buffer(bh), !buffer_uptodate(bh)) ) {
+		printk(KERN_DEBUG "zisofs: Failed to read block table, inode = %lu, block = %lu\n",
+		       inode->i_ino, blockptr >> bufshift);
+		if ( ptrbh[1] )
+			brelse(ptrbh[1]);
+		goto eio;
+	}
+	cstart = le32_to_cpu(*(u32 *)(bh->b_data + (blockptr & bufmask)));
+
+	if ( indexblocks == 2 ) {
+		/* We just crossed a block boundary.  Switch to the next block */
+		brelse(bh);
+		bh = ptrbh[1];
+		if ( !bh || (wait_on_buffer(bh), !buffer_uptodate(bh)) ) {
+			printk(KERN_DEBUG "zisofs: Failed to read block table, inode = %lu, block = %lu\n",
+			       inode->i_ino, blockendptr >> bufshift);
+			goto eio;
+		}
+	}
+	cend = le32_to_cpu(*(u32 *)(bh->b_data + (blockendptr & bufmask)));
+	brelse(bh);
+
+	csize = cend-cstart;
+
+	/* Now page[] contains an array of pages, any of which can be NULL,
+	   and the locks on which we hold.  We should now read the data and
+	   release the pages.  If the pages are NULL the decompressed data
+	   for that particular page should be discarded. */
+	
+	if ( csize == 0 ) {
+		/* This data block is empty. */
+
+		for ( fpage = 0 ; fpage < maxpage ; fpage++ ) {
+			if ( (page = pages[fpage]) != NULL ) {
+				memset(page_address(page), 0, PAGE_CACHE_SIZE);
+				
+				flush_dcache_page(page);
+				SetPageUptodate(page);
+				kunmap(page);
+				UnlockPage(page);
+				if ( fpage == xpage )
+					err = 0; /* The critical page */
+				else
+					page_cache_release(page);
+			}
+		}
+	} else {
+		/* This data block is compressed. */
+		z_stream stream;
+		int bail = 0, left_out = -1;
+		int zerr;
+		int needblocks = (csize + (cstart & bufmask) + bufmask) >> bufshift;
+		int haveblocks;
+		struct buffer_head *bhs[needblocks+1];
+		struct buffer_head **bhptr;
+
+		/* Because zlib is not thread-safe, do all the I/O at the top. */
+
+		blockptr = cstart >> bufshift;
+		memset(bhs, 0, (needblocks+1)*sizeof(struct buffer_head *));
+		haveblocks = isofs_get_blocks(inode, blockptr, bhs, needblocks);
+		ll_rw_block(READ, haveblocks, bhs);
+
+		bhptr = &bhs[0];
+		bh = *bhptr++;
+
+		/* First block is special since it may be fractional.
+		   We also wait for it before grabbing the zlib
+		   semaphore; odds are that the subsequent blocks are
+		   going to come in in short order so we don't hold
+		   the zlib semaphore longer than necessary. */
+
+		if ( !bh || (wait_on_buffer(bh), !buffer_uptodate(bh)) ) {
+			printk(KERN_DEBUG "zisofs: Hit null buffer, fpage = %d, xpage = %d, csize = %ld\n",
+			       fpage, xpage, csize);
+			goto b_eio;
+		}
+		stream.next_in  = bh->b_data + (cstart & bufmask);
+		stream.avail_in = min(bufsize-(cstart & bufmask), csize);
+		csize -= stream.avail_in;
+
+		stream.workspace = zisofs_zlib_workspace;
+		down(&zisofs_zlib_semaphore);
+		
+		zerr = zlib_inflateInit(&stream);
+		if ( zerr != Z_OK ) {
+			if ( err && zerr == Z_MEM_ERROR )
+				err = -ENOMEM;
+			printk(KERN_DEBUG "zisofs: zisofs_inflateInit returned %d\n",
+			       zerr);
+			goto z_eio;
+		}
+
+		while ( !bail && fpage < maxpage ) {
+			page = pages[fpage];
+			if ( page )
+				stream.next_out = page_address(page);
+			else
+				stream.next_out = (void *)&zisofs_sink_page;
+			stream.avail_out = PAGE_CACHE_SIZE;
+
+			while ( stream.avail_out ) {
+				int ao, ai;
+				if ( stream.avail_in == 0 && left_out ) {
+					if ( !csize ) {
+						printk(KERN_WARNING "zisofs: ZF read beyond end of input\n");
+						bail = 1;
+						break;
+					} else {
+						bh = *bhptr++;
+						if ( !bh ||
+						     (wait_on_buffer(bh), !buffer_uptodate(bh)) ) {
+							/* Reached an EIO */
+ 							printk(KERN_DEBUG "zisofs: Hit null buffer, fpage = %d, xpage = %d, csize = %ld\n",
+							       fpage, xpage, csize);
+							       
+							bail = 1;
+							break;
+						}
+						stream.next_in = bh->b_data;
+						stream.avail_in = min(csize,bufsize);
+						csize -= stream.avail_in;
+					}
+				}
+				ao = stream.avail_out;  ai = stream.avail_in;
+				zerr = zlib_inflate(&stream, Z_SYNC_FLUSH);
+				left_out = stream.avail_out;
+				if ( zerr == Z_BUF_ERROR && stream.avail_in == 0 )
+					continue;
+				if ( zerr != Z_OK ) {
+					/* EOF, error, or trying to read beyond end of input */
+					if ( err && zerr == Z_MEM_ERROR )
+						err = -ENOMEM;
+					if ( zerr != Z_STREAM_END )
+						printk(KERN_DEBUG "zisofs: zisofs_inflate returned %d, inode = %lu, index = %lu, fpage = %d, xpage = %d, avail_in = %d, avail_out = %d, ai = %d, ao = %d\n",
+						       zerr, inode->i_ino, index,
+						       fpage, xpage,
+						       stream.avail_in, stream.avail_out,
+						       ai, ao);
+					bail = 1;
+					break;
+				}
+			}
+
+			if ( stream.avail_out && zerr == Z_STREAM_END ) {
+				/* Fractional page written before EOF.  This may
+				   be the last page in the file. */
+				memset(stream.next_out, 0, stream.avail_out);
+				stream.avail_out = 0;
+			}
+
+			if ( !stream.avail_out ) {
+				/* This page completed */
+				if ( page ) {
+					flush_dcache_page(page);
+					SetPageUptodate(page);
+					kunmap(page);
+					UnlockPage(page);
+					if ( fpage == xpage )
+						err = 0; /* The critical page */
+					else
+						page_cache_release(page);
+				}
+				fpage++;
+			}
+		}
+		zlib_inflateEnd(&stream);
+
+	z_eio:
+		up(&zisofs_zlib_semaphore);
+
+	b_eio:
+		for ( i = 0 ; i < haveblocks ; i++ ) {
+			if ( bhs[i] )
+				brelse(bhs[i]);
+		}
+	}
+
+eio:
+
+	/* Release any residual pages, do not SetPageUptodate */
+	while ( fpage < maxpage ) {
+		page = pages[fpage];
+		if ( page ) {
+			flush_dcache_page(page);
+			if ( fpage == xpage )
+				SetPageError(page);
+			kunmap(page);
+			UnlockPage(page);
+			if ( fpage != xpage )
+				page_cache_release(page);
+		}
+		fpage++;
+	}			
+
+	/* At this point, err contains 0 or -EIO depending on the "critical" page */
+	return err;
+}
+
+struct address_space_operations zisofs_aops = {
+	readpage: zisofs_readpage,
+	/* No sync_page operation supported? */
+	/* No bmap operation supported */
+};
+
+static int initialized = 0;
+
+int __init zisofs_init(void)
+{
+	if ( initialized ) {
+		printk("zisofs_init: called more than once\n");
+		return 0;
+	}
+
+	zisofs_zlib_workspace = vmalloc(zlib_inflate_workspacesize());
+	if ( !zisofs_zlib_workspace )
+		return -ENOMEM;
+	init_MUTEX(&zisofs_zlib_semaphore);
+
+	initialized = 1;
+	return 0;
+}
+
+void __exit zisofs_cleanup(void)
+{
+	if ( !initialized ) {
+		printk("zisofs_cleanup: called without initialization\n");
+		return;
+	}
+
+	vfree(zisofs_zlib_workspace);
+	initialized = 0;
+}
diff --git a/fs/isofs/dir.c b/fs/isofs/dir.c
new file mode 100644
index 00000000000000..29db6b6c01ee0e
--- /dev/null
+++ b/fs/isofs/dir.c
@@ -0,0 +1,266 @@
+/*
+ *  linux/fs/isofs/dir.c
+ *
+ *  (C) 1992, 1993, 1994  Eric Youngdale Modified for ISO 9660 filesystem.
+ *
+ *  (C) 1991  Linus Torvalds - minix filesystem
+ *
+ *  Steve Beynon		       : Missing last directory entries fixed
+ *  (stephen@askone.demon.co.uk)      : 21st June 1996
+ * 
+ *  isofs directory handling functions
+ */
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/iso_fs.h>
+#include <linux/kernel.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/locks.h>
+#include <linux/config.h>
+
+#include <asm/uaccess.h>
+
+static int isofs_readdir(struct file *, void *, filldir_t);
+
+struct file_operations isofs_dir_operations =
+{
+	read:		generic_read_dir,
+	readdir:	isofs_readdir,
+};
+
+/*
+ * directories can handle most operations...
+ */
+struct inode_operations isofs_dir_inode_operations =
+{
+	lookup:		isofs_lookup,
+};
+
+int isofs_name_translate(struct iso_directory_record *de, char *new, struct inode *inode)
+{
+	char * old = de->name;
+	int len = de->name_len[0];
+	int i;
+			
+	for (i = 0; i < len; i++) {
+		unsigned char c = old[i];
+		if (!c)
+			break;
+
+		if (c >= 'A' && c <= 'Z')
+			c |= 0x20;	/* lower case */
+
+		/* Drop trailing '.;1' (ISO 9660:1988 7.5.1 requires period) */
+		if (c == '.' && i == len - 3 && old[i + 1] == ';' && old[i + 2] == '1')
+			break;
+
+		/* Drop trailing ';1' */
+		if (c == ';' && i == len - 2 && old[i + 1] == '1')
+			break;
+
+		/* Convert remaining ';' to '.' */
+		if (c == ';')
+			c = '.';
+
+		new[i] = c;
+	}
+	return i;
+}
+
+/* Acorn extensions written by Matthew Wilcox <willy@bofh.ai> 1998 */
+int get_acorn_filename(struct iso_directory_record * de,
+			    char * retname, struct inode * inode)
+{
+	int std;
+	unsigned char * chr;
+	int retnamlen = isofs_name_translate(de, retname, inode);
+	if (retnamlen == 0) return 0;
+	std = sizeof(struct iso_directory_record) + de->name_len[0];
+	if (std & 1) std++;
+	if ((*((unsigned char *) de) - std) != 32) return retnamlen;
+	chr = ((unsigned char *) de) + std;
+	if (strncmp(chr, "ARCHIMEDES", 10)) return retnamlen;
+	if ((*retname == '_') && ((chr[19] & 1) == 1)) *retname = '!';
+	if (((de->flags[0] & 2) == 0) && (chr[13] == 0xff)
+		&& ((chr[12] & 0xf0) == 0xf0))
+	{
+		retname[retnamlen] = ',';
+		sprintf(retname+retnamlen+1, "%3.3x",
+			((chr[12] & 0xf) << 8) | chr[11]);
+		retnamlen += 4;
+	}
+	return retnamlen;
+}
+
+/*
+ * This should _really_ be cleaned up some day..
+ */
+static int do_isofs_readdir(struct inode *inode, struct file *filp,
+		void *dirent, filldir_t filldir,
+		char * tmpname, struct iso_directory_record * tmpde)
+{
+	unsigned long bufsize = ISOFS_BUFFER_SIZE(inode);
+	unsigned char bufbits = ISOFS_BUFFER_BITS(inode);
+	unsigned int block, offset;
+	int inode_number = 0;	/* Quiet GCC */
+	struct buffer_head *bh = NULL;
+	int len;
+	int map;
+	int high_sierra;
+	int first_de = 1;
+	char *p = NULL;		/* Quiet GCC */
+	struct iso_directory_record *de;
+
+	offset = filp->f_pos & (bufsize - 1);
+	block = filp->f_pos >> bufbits;
+	high_sierra = inode->i_sb->u.isofs_sb.s_high_sierra;
+
+	while (filp->f_pos < inode->i_size) {
+		int de_len;
+
+		if (!bh) {
+			bh = isofs_bread(inode, block);
+			if (!bh)
+				return 0;
+		}
+
+		de = (struct iso_directory_record *) (bh->b_data + offset);
+		if (first_de)
+			inode_number = (bh->b_blocknr << bufbits) + offset;
+
+		de_len = *(unsigned char *) de;
+
+		/* If the length byte is zero, we should move on to the next
+		   CDROM sector.  If we are at the end of the directory, we
+		   kick out of the while loop. */
+
+		if (de_len == 0) {
+			brelse(bh);
+			bh = NULL;
+			filp->f_pos = (filp->f_pos + ISOFS_BLOCK_SIZE) & ~(ISOFS_BLOCK_SIZE - 1);
+			block = filp->f_pos >> bufbits;
+			offset = 0;
+			continue;
+		}
+
+		offset += de_len;
+
+		/* Make sure we have a full directory entry */
+		if (offset >= bufsize) {
+			int slop = bufsize - offset + de_len;
+			memcpy(tmpde, de, slop);
+			offset &= bufsize - 1;
+			block++;
+			brelse(bh);
+			bh = NULL;
+			if (offset) {
+				bh = isofs_bread(inode, block);
+				if (!bh)
+					return 0;
+				memcpy((void *) tmpde + slop, bh->b_data, offset);
+			}
+			de = tmpde;
+		}
+
+		if (de->flags[-high_sierra] & 0x80) {
+			first_de = 0;
+			filp->f_pos += de_len;
+			continue;
+		}
+		first_de = 1;
+
+		/* Handle the case of the '.' directory */
+		if (de->name_len[0] == 1 && de->name[0] == 0) {
+			if (filldir(dirent, ".", 1, filp->f_pos, inode->i_ino, DT_DIR) < 0)
+				break;
+			filp->f_pos += de_len;
+			continue;
+		}
+
+		len = 0;
+
+		/* Handle the case of the '..' directory */
+		if (de->name_len[0] == 1 && de->name[0] == 1) {
+			inode_number = filp->f_dentry->d_parent->d_inode->i_ino;
+			if (filldir(dirent, "..", 2, filp->f_pos, inode_number, DT_DIR) < 0)
+				break;
+			filp->f_pos += de_len;
+			continue;
+		}
+
+		/* Handle everything else.  Do name translation if there
+		   is no Rock Ridge NM field. */
+		if (inode->i_sb->u.isofs_sb.s_unhide == 'n') {
+			/* Do not report hidden or associated files */
+			if (de->flags[-high_sierra] & 5) {
+				filp->f_pos += de_len;
+				continue;
+			}
+		}
+
+		map = 1;
+		if (inode->i_sb->u.isofs_sb.s_rock) {
+			len = get_rock_ridge_filename(de, tmpname, inode);
+			if (len != 0) {		/* may be -1 */
+				p = tmpname;
+				map = 0;
+			}
+		}
+		if (map) {
+#ifdef CONFIG_JOLIET
+			if (inode->i_sb->u.isofs_sb.s_joliet_level) {
+				len = get_joliet_filename(de, tmpname, inode);
+				p = tmpname;
+			} else
+#endif
+			if (inode->i_sb->u.isofs_sb.s_mapping == 'a') {
+				len = get_acorn_filename(de, tmpname, inode);
+				p = tmpname;
+			} else
+			if (inode->i_sb->u.isofs_sb.s_mapping == 'n') {
+				len = isofs_name_translate(de, tmpname, inode);
+				p = tmpname;
+			} else {
+				p = de->name;
+				len = de->name_len[0];
+			}
+		}
+		if (len > 0) {
+			if (filldir(dirent, p, len, filp->f_pos, inode_number, DT_UNKNOWN) < 0)
+				break;
+		}
+		filp->f_pos += de_len;
+
+		continue;
+	}
+	if (bh) brelse(bh);
+	return 0;
+}
+
+/*
+ * Handle allocation of temporary space for name translation and
+ * handling split directory entries.. The real work is done by
+ * "do_isofs_readdir()".
+ */
+static int isofs_readdir(struct file *filp,
+		void *dirent, filldir_t filldir)
+{
+	int result;
+	char * tmpname;
+	struct iso_directory_record * tmpde;
+	struct inode *inode = filp->f_dentry->d_inode;
+
+	tmpname = (char *) __get_free_page(GFP_KERNEL);
+	if (!tmpname)
+		return -ENOMEM;
+	tmpde = (struct iso_directory_record *) (tmpname+1024);
+
+	result = do_isofs_readdir(inode, filp, dirent, filldir, tmpname, tmpde);
+
+	free_page((unsigned long) tmpname);
+	return result;
+}
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
new file mode 100644
index 00000000000000..8c151771071952
--- /dev/null
+++ b/fs/isofs/inode.c
@@ -0,0 +1,1334 @@
+/*
+ *  linux/fs/isofs/inode.c
+ *
+ *  (C) 1991  Linus Torvalds - minix filesystem
+ *      1992, 1993, 1994  Eric Youngdale Modified for ISO 9660 filesystem.
+ *      1994  Eberhard Moenkeberg - multi session handling.
+ *      1995  Mark Dobie - allow mounting of some weird VideoCDs and PhotoCDs.
+ *	1997  Gordon Chaffee - Joliet CDs
+ *	1998  Eric Lammerts - ISO 9660 Level 3
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+
+#include <linux/stat.h>
+#include <linux/sched.h>
+#include <linux/iso_fs.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/mm.h>
+#include <linux/string.h>
+#include <linux/locks.h>
+#include <linux/slab.h>
+#include <linux/errno.h>
+#include <linux/cdrom.h>
+#include <linux/init.h>
+#include <linux/nls.h>
+#include <linux/ctype.h>
+#include <linux/smp_lock.h>
+#include <linux/blkdev.h>
+
+#include <asm/system.h>
+#include <asm/uaccess.h>
+
+#include "zisofs.h"
+
+#define BEQUIET
+
+#ifdef LEAK_CHECK
+static int check_malloc = 0;
+static int check_bread = 0;
+#endif
+
+static int isofs_hashi(struct dentry *parent, struct qstr *qstr);
+static int isofs_hash(struct dentry *parent, struct qstr *qstr);
+static int isofs_dentry_cmpi(struct dentry *dentry, struct qstr *a, struct qstr *b);
+static int isofs_dentry_cmp(struct dentry *dentry, struct qstr *a, struct qstr *b);
+
+#ifdef CONFIG_JOLIET
+static int isofs_hashi_ms(struct dentry *parent, struct qstr *qstr);
+static int isofs_hash_ms(struct dentry *parent, struct qstr *qstr);
+static int isofs_dentry_cmpi_ms(struct dentry *dentry, struct qstr *a, struct qstr *b);
+static int isofs_dentry_cmp_ms(struct dentry *dentry, struct qstr *a, struct qstr *b);
+#endif
+
+static void isofs_put_super(struct super_block *sb)
+{
+#ifdef CONFIG_JOLIET
+	if (sb->u.isofs_sb.s_nls_iocharset) {
+		unload_nls(sb->u.isofs_sb.s_nls_iocharset);
+		sb->u.isofs_sb.s_nls_iocharset = NULL;
+	}
+#endif
+
+#ifdef LEAK_CHECK
+	printk("Outstanding mallocs:%d, outstanding buffers: %d\n",
+	       check_malloc, check_bread);
+#endif
+
+	return;
+}
+
+static void isofs_read_inode(struct inode *);
+static int isofs_statfs (struct super_block *, struct statfs *);
+
+static struct super_operations isofs_sops = {
+	read_inode:	isofs_read_inode,
+	put_super:	isofs_put_super,
+	statfs:		isofs_statfs,
+};
+
+static struct dentry_operations isofs_dentry_ops[] = {
+	{
+		d_hash:		isofs_hash,
+		d_compare:	isofs_dentry_cmp,
+	},
+	{
+		d_hash:		isofs_hashi,
+		d_compare:	isofs_dentry_cmpi,
+	},
+#ifdef CONFIG_JOLIET
+	{
+		d_hash:		isofs_hash_ms,
+		d_compare:	isofs_dentry_cmp_ms,
+	},
+	{
+		d_hash:		isofs_hashi_ms,
+		d_compare:	isofs_dentry_cmpi_ms,
+	}
+#endif
+};
+
+struct iso9660_options{
+	char map;
+	char rock;
+	char joliet;
+	char cruft;
+	char unhide;
+	char nocompress;
+	unsigned char check;
+	unsigned int blocksize;
+	mode_t mode;
+	gid_t gid;
+	uid_t uid;
+	char *iocharset;
+	unsigned char utf8;
+        /* LVE */
+        s32 session;
+        s32 sbsector;
+};
+
+/*
+ * Compute the hash for the isofs name corresponding to the dentry.
+ */
+static int
+isofs_hash_common(struct dentry *dentry, struct qstr *qstr, int ms)
+{
+	const char *name;
+	int len;
+
+	len = qstr->len;
+	name = qstr->name;
+	if (ms) {
+		while (len && name[len-1] == '.')
+			len--;
+	}
+
+	qstr->hash = full_name_hash(name, len);
+
+	return 0;
+}
+
+/*
+ * Compute the hash for the isofs name corresponding to the dentry.
+ */
+static int
+isofs_hashi_common(struct dentry *dentry, struct qstr *qstr, int ms)
+{
+	const char *name;
+	int len;
+	char c;
+	unsigned long hash;
+
+	len = qstr->len;
+	name = qstr->name;
+	if (ms) {
+		while (len && name[len-1] == '.')
+			len--;
+	}
+
+	hash = init_name_hash();
+	while (len--) {
+		c = tolower(*name++);
+		hash = partial_name_hash(tolower(c), hash);
+	}
+	qstr->hash = end_name_hash(hash);
+
+	return 0;
+}
+
+/*
+ * Case insensitive compare of two isofs names.
+ */
+static int
+isofs_dentry_cmpi_common(struct dentry *dentry,struct qstr *a,struct qstr *b,int ms)
+{
+	int alen, blen;
+
+	/* A filename cannot end in '.' or we treat it like it has none */
+	alen = a->len;
+	blen = b->len;
+	if (ms) {
+		while (alen && a->name[alen-1] == '.')
+			alen--;
+		while (blen && b->name[blen-1] == '.')
+			blen--;
+	}
+	if (alen == blen) {
+		if (strnicmp(a->name, b->name, alen) == 0)
+			return 0;
+	}
+	return 1;
+}
+
+/*
+ * Case sensitive compare of two isofs names.
+ */
+static int
+isofs_dentry_cmp_common(struct dentry *dentry,struct qstr *a,struct qstr *b,int ms)
+{
+	int alen, blen;
+
+	/* A filename cannot end in '.' or we treat it like it has none */
+	alen = a->len;
+	blen = b->len;
+	if (ms) {
+		while (alen && a->name[alen-1] == '.')
+			alen--;
+		while (blen && b->name[blen-1] == '.')
+			blen--;
+	}
+	if (alen == blen) {
+		if (strncmp(a->name, b->name, alen) == 0)
+			return 0;
+	}
+	return 1;
+}
+
+static int
+isofs_hash(struct dentry *dentry, struct qstr *qstr)
+{
+	return isofs_hash_common(dentry, qstr, 0);
+}
+
+static int
+isofs_hashi(struct dentry *dentry, struct qstr *qstr)
+{
+	return isofs_hashi_common(dentry, qstr, 0);
+}
+
+static int
+isofs_dentry_cmp(struct dentry *dentry,struct qstr *a,struct qstr *b)
+{
+	return isofs_dentry_cmp_common(dentry, a, b, 0);
+}
+
+static int
+isofs_dentry_cmpi(struct dentry *dentry,struct qstr *a,struct qstr *b)
+{
+	return isofs_dentry_cmpi_common(dentry, a, b, 0);
+}
+
+#ifdef CONFIG_JOLIET
+static int
+isofs_hash_ms(struct dentry *dentry, struct qstr *qstr)
+{
+	return isofs_hash_common(dentry, qstr, 1);
+}
+
+static int
+isofs_hashi_ms(struct dentry *dentry, struct qstr *qstr)
+{
+	return isofs_hashi_common(dentry, qstr, 1);
+}
+
+static int
+isofs_dentry_cmp_ms(struct dentry *dentry,struct qstr *a,struct qstr *b)
+{
+	return isofs_dentry_cmp_common(dentry, a, b, 1);
+}
+
+static int
+isofs_dentry_cmpi_ms(struct dentry *dentry,struct qstr *a,struct qstr *b)
+{
+	return isofs_dentry_cmpi_common(dentry, a, b, 1);
+}
+#endif
+
+static int parse_options(char *options, struct iso9660_options * popt)
+{
+	char *this_char,*value;
+
+	popt->map = 'n';
+	popt->rock = 'y';
+	popt->joliet = 'y';
+	popt->cruft = 'n';
+	popt->unhide = 'n';
+	popt->check = 'u';		/* unset */
+	popt->nocompress = 0;
+	popt->blocksize = 1024;
+	popt->mode = S_IRUGO | S_IXUGO; /* r-x for all.  The disc could
+					   be shared with DOS machines so
+					   virtually anything could be
+					   a valid executable. */
+	popt->gid = 0;
+	popt->uid = 0;
+	popt->iocharset = NULL;
+	popt->utf8 = 0;
+	popt->session=-1;
+	popt->sbsector=-1;
+	if (!options) return 1;
+	for (this_char = strtok(options,","); this_char; this_char = strtok(NULL,",")) {
+	        if (strncmp(this_char,"norock",6) == 0) {
+		  popt->rock = 'n';
+		  continue;
+		}
+	        if (strncmp(this_char,"nojoliet",8) == 0) {
+		  popt->joliet = 'n';
+		  continue;
+		}
+	        if (strncmp(this_char,"unhide",6) == 0) {
+		  popt->unhide = 'y';
+		  continue;
+		}
+	        if (strncmp(this_char,"cruft",5) == 0) {
+		  popt->cruft = 'y';
+		  continue;
+		}
+	        if (strncmp(this_char,"utf8",4) == 0) {
+		  popt->utf8 = 1;
+		  continue;
+		}
+	        if (strncmp(this_char,"nocompress",10) == 0) {
+		  popt->nocompress = 1;
+		  continue;
+		}
+		if ((value = strchr(this_char,'=')) != NULL)
+			*value++ = 0;
+
+#ifdef CONFIG_JOLIET
+		if (!strcmp(this_char,"iocharset") && value) {
+			popt->iocharset = value;
+			while (*value && *value != ',')
+				value++;
+			if (value == popt->iocharset)
+				return 0;
+			*value = 0;
+		} else
+#endif
+		if (!strcmp(this_char,"map") && value) {
+			if (value[0] && !value[1] && strchr("ano",*value))
+				popt->map = *value;
+			else if (!strcmp(value,"off")) popt->map = 'o';
+			else if (!strcmp(value,"normal")) popt->map = 'n';
+			else if (!strcmp(value,"acorn")) popt->map = 'a';
+			else return 0;
+		}
+		if (!strcmp(this_char,"session") && value) {
+			char * vpnt = value;
+			unsigned int ivalue = simple_strtoul(vpnt, &vpnt, 0);
+			if(ivalue < 0 || ivalue >99) return 0;
+			popt->session=ivalue+1;
+		}
+		if (!strcmp(this_char,"sbsector") && value) {
+			char * vpnt = value;
+			unsigned int ivalue = simple_strtoul(vpnt, &vpnt, 0);
+			if(ivalue < 0 || ivalue >660*512) return 0;
+			popt->sbsector=ivalue;
+		}
+		else if (!strcmp(this_char,"check") && value) {
+			if (value[0] && !value[1] && strchr("rs",*value))
+				popt->check = *value;
+			else if (!strcmp(value,"relaxed")) popt->check = 'r';
+			else if (!strcmp(value,"strict")) popt->check = 's';
+			else return 0;
+		}
+		else if (!strcmp(this_char,"conv") && value) {
+			/* no conversion is done anymore;
+			   we still accept the same mount options,
+			   but ignore them */
+			if (value[0] && !value[1] && strchr("btma",*value)) ;
+			else if (!strcmp(value,"binary")) ;
+			else if (!strcmp(value,"text")) ;
+			else if (!strcmp(value,"mtext")) ;
+			else if (!strcmp(value,"auto")) ;
+			else return 0;
+		}
+		else if (value &&
+			 (!strcmp(this_char,"block") ||
+			  !strcmp(this_char,"mode") ||
+			  !strcmp(this_char,"uid") ||
+			  !strcmp(this_char,"gid"))) {
+		  char * vpnt = value;
+		  unsigned int ivalue = simple_strtoul(vpnt, &vpnt, 0);
+		  if (*vpnt) return 0;
+		  switch(*this_char) {
+		  case 'b':
+		    if (   ivalue != 512
+			&& ivalue != 1024
+			&& ivalue != 2048) return 0;
+		    popt->blocksize = ivalue;
+		    break;
+		  case 'u':
+		    popt->uid = ivalue;
+		    break;
+		  case 'g':
+		    popt->gid = ivalue;
+		    break;
+		  case 'm':
+		    popt->mode = ivalue;
+		    break;
+		  }
+		}
+		else return 1;
+	}
+	return 1;
+}
+
+/*
+ * look if the driver can tell the multi session redirection value
+ *
+ * don't change this if you don't know what you do, please!
+ * Multisession is legal only with XA disks.
+ * A non-XA disk with more than one volume descriptor may do it right, but
+ * usually is written in a nowhere standardized "multi-partition" manner.
+ * Multisession uses absolute addressing (solely the first frame of the whole
+ * track is #0), multi-partition uses relative addressing (each first frame of
+ * each track is #0), and a track is not a session.
+ *
+ * A broken CDwriter software or drive firmware does not set new standards,
+ * at least not if conflicting with the existing ones.
+ *
+ * emoenke@gwdg.de
+ */
+#define WE_OBEY_THE_WRITTEN_STANDARDS 1
+
+static unsigned int isofs_get_last_session(struct super_block *sb,s32 session )
+{
+	struct cdrom_multisession ms_info;
+	unsigned int vol_desc_start;
+	struct block_device *bdev = sb->s_bdev;
+	int i;
+
+	vol_desc_start=0;
+	ms_info.addr_format=CDROM_LBA;
+	if(session >= 0 && session <= 99) {
+		struct cdrom_tocentry Te;
+		Te.cdte_track=session;
+		Te.cdte_format=CDROM_LBA;
+		i = ioctl_by_bdev(bdev, CDROMREADTOCENTRY, (unsigned long) &Te);
+		if (!i) {
+			printk(KERN_DEBUG "Session %d start %d type %d\n",
+			       session, Te.cdte_addr.lba,
+			       Te.cdte_ctrl&CDROM_DATA_TRACK);
+			if ((Te.cdte_ctrl&CDROM_DATA_TRACK) == 4)
+				return Te.cdte_addr.lba;
+		}
+			
+		printk(KERN_ERR "Invalid session number or type of track\n");
+	}
+	i = ioctl_by_bdev(bdev, CDROMMULTISESSION, (unsigned long) &ms_info);
+	if(session > 0) printk(KERN_ERR "Invalid session number\n");
+#if 0
+	printk("isofs.inode: CDROMMULTISESSION: rc=%d\n",i);
+	if (i==0) {
+		printk("isofs.inode: XA disk: %s\n",ms_info.xa_flag?"yes":"no");
+		printk("isofs.inode: vol_desc_start = %d\n", ms_info.addr.lba);
+	}
+#endif
+	if (i==0)
+#if WE_OBEY_THE_WRITTEN_STANDARDS
+        if (ms_info.xa_flag) /* necessary for a valid ms_info.addr */
+#endif
+		vol_desc_start=ms_info.addr.lba;
+	return vol_desc_start;
+}
+
+/*
+ * Initialize the superblock and read the root inode.
+ *
+ * Note: a check_disk_change() has been done immediately prior
+ * to this call, so we don't need to check again.
+ */
+static struct super_block *isofs_read_super(struct super_block *s, void *data,
+					    int silent)
+{
+	kdev_t				dev = s->s_dev;
+	struct buffer_head	      * bh = NULL, *pri_bh = NULL;
+	struct hs_primary_descriptor  * h_pri = NULL;
+	struct iso_primary_descriptor * pri = NULL;
+	struct iso_supplementary_descriptor *sec = NULL;
+	struct iso_directory_record   * rootp;
+	int				joliet_level = 0;
+	int				high_sierra;
+	int				iso_blknum, block;
+	int				orig_zonesize;
+	int				table;
+	unsigned int			blocksize, blocksize_bits;
+	unsigned int			vol_desc_start;
+	unsigned long			first_data_zone;
+	struct inode		      * inode;
+	struct iso9660_options		opt;
+
+	if (!parse_options((char *) data, &opt))
+		goto out_unlock;
+
+	/*
+	 * First of all, get the hardware blocksize for this device.
+	 * If we don't know what it is, or the hardware blocksize is
+	 * larger than the blocksize the user specified, then use
+	 * that value.
+	 */
+	blocksize = get_hardsect_size(dev);
+	if(blocksize > opt.blocksize) {
+	    /*
+	     * Force the blocksize we are going to use to be the
+	     * hardware blocksize.
+	     */
+	    opt.blocksize = blocksize;
+	}
+
+	blocksize_bits = 0;
+	{
+	  int i = opt.blocksize;
+	  while (i != 1){
+	    blocksize_bits++;
+	    i >>=1;
+	  }
+	}
+
+	set_blocksize(dev, opt.blocksize);
+	s->s_blocksize = opt.blocksize;
+
+	s->u.isofs_sb.s_high_sierra = high_sierra = 0; /* default is iso9660 */
+
+	vol_desc_start = (opt.sbsector != -1) ?
+		opt.sbsector : isofs_get_last_session(s,opt.session);
+
+  	for (iso_blknum = vol_desc_start+16;
+             iso_blknum < vol_desc_start+100; iso_blknum++)
+	{
+	    struct hs_volume_descriptor   * hdp;
+	    struct iso_volume_descriptor  * vdp;
+
+	    block = iso_blknum << (ISOFS_BLOCK_BITS-blocksize_bits);
+	    if (!(bh = sb_bread(s, block)))
+		goto out_no_read;
+
+	    vdp = (struct iso_volume_descriptor *)bh->b_data;
+	    hdp = (struct hs_volume_descriptor *)bh->b_data;
+	    
+	    /* Due to the overlapping physical location of the descriptors, 
+	     * ISO CDs can match hdp->id==HS_STANDARD_ID as well. To ensure 
+	     * proper identification in this case, we first check for ISO.
+	     */
+	    if (strncmp (vdp->id, ISO_STANDARD_ID, sizeof vdp->id) == 0) {
+		if (isonum_711 (vdp->type) == ISO_VD_END)
+		    break;
+		if (isonum_711 (vdp->type) == ISO_VD_PRIMARY) {
+		    if (pri == NULL) {
+			pri = (struct iso_primary_descriptor *)vdp;
+			/* Save the buffer in case we need it ... */
+			pri_bh = bh;
+			bh = NULL;
+		    }
+		}
+#ifdef CONFIG_JOLIET
+		else if (isonum_711 (vdp->type) == ISO_VD_SUPPLEMENTARY) {
+		    sec = (struct iso_supplementary_descriptor *)vdp;
+		    if (sec->escape[0] == 0x25 && sec->escape[1] == 0x2f) {
+			if (opt.joliet == 'y') {
+			    if (sec->escape[2] == 0x40) {
+				joliet_level = 1;
+			    } else if (sec->escape[2] == 0x43) {
+				joliet_level = 2;
+			    } else if (sec->escape[2] == 0x45) {
+				joliet_level = 3;
+			    }
+			    printk(KERN_DEBUG"ISO 9660 Extensions: Microsoft Joliet Level %d\n",
+				   joliet_level);
+			}
+			goto root_found;
+		    } else {
+			/* Unknown supplementary volume descriptor */
+			sec = NULL;
+		    }
+		}
+#endif
+	    } else {
+	        if (strncmp (hdp->id, HS_STANDARD_ID, sizeof hdp->id) == 0) {
+		    if (isonum_711 (hdp->type) != ISO_VD_PRIMARY)
+		        goto out_freebh;
+		
+		    s->u.isofs_sb.s_high_sierra = 1;
+		    high_sierra = 1;
+		    opt.rock = 'n';
+		    h_pri = (struct hs_primary_descriptor *)vdp;
+		    goto root_found;
+		}
+	    }
+
+            /* Just skip any volume descriptors we don't recognize */
+
+	    brelse(bh);
+	    bh = NULL;
+	}
+	/*
+	 * If we fall through, either no volume descriptor was found,
+	 * or else we passed a primary descriptor looking for others.
+	 */
+	if (!pri)
+		goto out_unknown_format;
+	brelse(bh);
+	bh = pri_bh;
+	pri_bh = NULL;
+
+root_found:
+
+	if (joliet_level && (pri == NULL || opt.rock == 'n')) {
+	    /* This is the case of Joliet with the norock mount flag.
+	     * A disc with both Joliet and Rock Ridge is handled later
+	     */
+	    pri = (struct iso_primary_descriptor *) sec;
+	}
+
+	if(high_sierra){
+	  rootp = (struct iso_directory_record *) h_pri->root_directory_record;
+	  s->u.isofs_sb.s_nzones = isonum_733 (h_pri->volume_space_size);
+	  s->u.isofs_sb.s_log_zone_size = isonum_723 (h_pri->logical_block_size);
+	  s->u.isofs_sb.s_max_size = isonum_733(h_pri->volume_space_size);
+	} else {
+	  if (!pri)
+	    goto out_freebh;
+	  rootp = (struct iso_directory_record *) pri->root_directory_record;
+	  s->u.isofs_sb.s_nzones = isonum_733 (pri->volume_space_size);
+	  s->u.isofs_sb.s_log_zone_size = isonum_723 (pri->logical_block_size);
+	  s->u.isofs_sb.s_max_size = isonum_733(pri->volume_space_size);
+	}
+
+	s->u.isofs_sb.s_ninodes = 0; /* No way to figure this out easily */
+
+	orig_zonesize = s -> u.isofs_sb.s_log_zone_size;
+	/*
+	 * If the zone size is smaller than the hardware sector size,
+	 * this is a fatal error.  This would occur if the disc drive
+	 * had sectors that were 2048 bytes, but the filesystem had
+	 * blocks that were 512 bytes (which should only very rarely
+	 * happen.)
+	 */
+	if(blocksize != 0 && orig_zonesize < blocksize)
+		goto out_bad_size;
+
+	/* RDE: convert log zone size to bit shift */
+	switch (s -> u.isofs_sb.s_log_zone_size)
+	  { case  512: s -> u.isofs_sb.s_log_zone_size =  9; break;
+	    case 1024: s -> u.isofs_sb.s_log_zone_size = 10; break;
+	    case 2048: s -> u.isofs_sb.s_log_zone_size = 11; break;
+
+	    default:
+		goto out_bad_zone_size;
+	  }
+
+	s->s_magic = ISOFS_SUPER_MAGIC;
+
+	/* The CDROM is read-only, has no nodes (devices) on it, and since
+	   all of the files appear to be owned by root, we really do not want
+	   to allow suid.  (suid or devices will not show up unless we have
+	   Rock Ridge extensions) */
+
+	s->s_flags |= MS_RDONLY /* | MS_NODEV | MS_NOSUID */;
+
+	/* Set this for reference. Its not currently used except on write
+	   which we don't have .. */
+	   
+	/* RDE: data zone now byte offset! */
+
+	first_data_zone = ((isonum_733 (rootp->extent) +
+			  isonum_711 (rootp->ext_attr_length))
+			 << s -> u.isofs_sb.s_log_zone_size);
+	s->u.isofs_sb.s_firstdatazone = first_data_zone;
+#ifndef BEQUIET
+	printk(KERN_DEBUG "Max size:%ld   Log zone size:%ld\n",
+	       s->u.isofs_sb.s_max_size,
+	       1UL << s->u.isofs_sb.s_log_zone_size);
+	printk(KERN_DEBUG "First datazone:%ld   Root inode number:%ld\n",
+	       s->u.isofs_sb.s_firstdatazone >> s -> u.isofs_sb.s_log_zone_size,
+	       s->u.isofs_sb.s_firstdatazone);
+	if(high_sierra)
+		printk(KERN_DEBUG "Disc in High Sierra format.\n");
+#endif
+
+	/*
+	 * If the Joliet level is set, we _may_ decide to use the
+	 * secondary descriptor, but can't be sure until after we
+	 * read the root inode. But before reading the root inode
+	 * we may need to change the device blocksize, and would
+	 * rather release the old buffer first. So, we cache the
+	 * first_data_zone value from the secondary descriptor.
+	 */
+	if (joliet_level) {
+		pri = (struct iso_primary_descriptor *) sec;
+		rootp = (struct iso_directory_record *)
+			pri->root_directory_record;
+		first_data_zone = ((isonum_733 (rootp->extent) +
+			  	isonum_711 (rootp->ext_attr_length))
+				 << s -> u.isofs_sb.s_log_zone_size);
+	}
+
+	/*
+	 * We're all done using the volume descriptor, and may need
+	 * to change the device blocksize, so release the buffer now.
+	 */
+	brelse(pri_bh);
+	brelse(bh);
+
+	/*
+	 * Force the blocksize to 512 for 512 byte sectors.  The file
+	 * read primitives really get it wrong in a bad way if we don't
+	 * do this.
+	 *
+	 * Note - we should never be setting the blocksize to something
+	 * less than the hardware sector size for the device.  If we
+	 * do, we would end up having to read larger buffers and split
+	 * out portions to satisfy requests.
+	 *
+	 * Note2- the idea here is that we want to deal with the optimal
+	 * zonesize in the filesystem.  If we have it set to something less,
+	 * then we have horrible problems with trying to piece together
+	 * bits of adjacent blocks in order to properly read directory
+	 * entries.  By forcing the blocksize in this way, we ensure
+	 * that we will never be required to do this.
+	 */
+	if ( orig_zonesize != opt.blocksize ) {
+		set_blocksize(dev, orig_zonesize);
+#ifndef BEQUIET
+		printk(KERN_DEBUG 
+			"ISOFS: Forcing new log zone size:%d\n", orig_zonesize);
+#endif
+	}
+	s->s_blocksize = orig_zonesize;
+	s->s_blocksize_bits = s -> u.isofs_sb.s_log_zone_size;
+
+	s->u.isofs_sb.s_nls_iocharset = NULL;
+
+#ifdef CONFIG_JOLIET
+	if (joliet_level && opt.utf8 == 0) {
+		char * p = opt.iocharset ? opt.iocharset : "iso8859-1";
+		s->u.isofs_sb.s_nls_iocharset = load_nls(p);
+		if (! s->u.isofs_sb.s_nls_iocharset) {
+			/* Fail only if explicit charset specified */
+			if (opt.iocharset)
+				goto out_unlock;
+			s->u.isofs_sb.s_nls_iocharset = load_nls_default();
+		}
+	}
+#endif
+	s->s_op = &isofs_sops;
+	s->u.isofs_sb.s_mapping = opt.map;
+	s->u.isofs_sb.s_rock = (opt.rock == 'y' ? 2 : 0);
+	s->u.isofs_sb.s_rock_offset = -1; /* initial offset, will guess until SP is found*/
+	s->u.isofs_sb.s_cruft = opt.cruft;
+	s->u.isofs_sb.s_unhide = opt.unhide;
+	s->u.isofs_sb.s_uid = opt.uid;
+	s->u.isofs_sb.s_gid = opt.gid;
+	s->u.isofs_sb.s_utf8 = opt.utf8;
+	s->u.isofs_sb.s_nocompress = opt.nocompress;
+	/*
+	 * It would be incredibly stupid to allow people to mark every file
+	 * on the disk as suid, so we merely allow them to set the default
+	 * permissions.
+	 */
+	s->u.isofs_sb.s_mode = opt.mode & 0777;
+
+	/*
+	 * Read the root inode, which _may_ result in changing
+	 * the s_rock flag. Once we have the final s_rock value,
+	 * we then decide whether to use the Joliet descriptor.
+	 */
+	inode = iget(s, s->u.isofs_sb.s_firstdatazone);
+
+	/*
+	 * If this disk has both Rock Ridge and Joliet on it, then we
+	 * want to use Rock Ridge by default.  This can be overridden
+	 * by using the norock mount option.  There is still one other
+	 * possibility that is not taken into account: a Rock Ridge
+	 * CD with Unicode names.  Until someone sees such a beast, it
+	 * will not be supported.
+	 */
+	if (s->u.isofs_sb.s_rock == 1) {
+		joliet_level = 0;
+	} else if (joliet_level) {
+		s->u.isofs_sb.s_rock = 0;
+		if (s->u.isofs_sb.s_firstdatazone != first_data_zone) {
+			s->u.isofs_sb.s_firstdatazone = first_data_zone;
+			printk(KERN_DEBUG 
+				"ISOFS: changing to secondary root\n");
+			iput(inode);
+			inode = iget(s, s->u.isofs_sb.s_firstdatazone);
+		}
+	}
+
+	if (opt.check == 'u') {
+		/* Only Joliet is case insensitive by default */
+		if (joliet_level) opt.check = 'r';
+		else opt.check = 's';
+	}
+	s->u.isofs_sb.s_joliet_level = joliet_level;
+
+	/* check the root inode */
+	if (!inode)
+		goto out_no_root;
+	if (!inode->i_op)
+		goto out_bad_root;
+	/* get the root dentry */
+	s->s_root = d_alloc_root(inode);
+	if (!(s->s_root))
+		goto out_no_root;
+
+	table = 0;
+	if (joliet_level) table += 2;
+	if (opt.check == 'r') table++;
+	s->s_root->d_op = &isofs_dentry_ops[table];
+
+	return s;
+
+	/*
+	 * Display error messages and free resources.
+	 */
+out_bad_root:
+	printk(KERN_WARNING "isofs_read_super: root inode not initialized\n");
+	goto out_iput;
+out_no_root:
+	printk(KERN_WARNING "isofs_read_super: get root inode failed\n");
+out_iput:
+	iput(inode);
+#ifdef CONFIG_JOLIET
+	if (s->u.isofs_sb.s_nls_iocharset)
+		unload_nls(s->u.isofs_sb.s_nls_iocharset);
+#endif
+	goto out_unlock;
+out_no_read:
+	printk(KERN_WARNING "isofs_read_super: "
+		"bread failed, dev=%s, iso_blknum=%d, block=%d\n",
+		kdevname(dev), iso_blknum, block);
+	goto out_unlock;
+out_bad_zone_size:
+	printk(KERN_WARNING "Bad logical zone size %ld\n",
+		s->u.isofs_sb.s_log_zone_size);
+	goto out_freebh;
+out_bad_size:
+	printk(KERN_WARNING "Logical zone size(%d) < hardware blocksize(%u)\n",
+		orig_zonesize, blocksize);
+	goto out_freebh;
+out_unknown_format:
+	if (!silent)
+		printk(KERN_WARNING "Unable to identify CD-ROM format.\n");
+
+out_freebh:
+	brelse(bh);
+out_unlock:
+	return NULL;
+}
+
+static int isofs_statfs (struct super_block *sb, struct statfs *buf)
+{
+	buf->f_type = ISOFS_SUPER_MAGIC;
+	buf->f_bsize = sb->s_blocksize;
+	buf->f_blocks = (sb->u.isofs_sb.s_nzones
+                  << (sb->u.isofs_sb.s_log_zone_size - sb->s_blocksize_bits));
+	buf->f_bfree = 0;
+	buf->f_bavail = 0;
+	buf->f_files = sb->u.isofs_sb.s_ninodes;
+	buf->f_ffree = 0;
+	buf->f_namelen = NAME_MAX;
+	return 0;
+}
+
+/*
+ * Get a set of blocks; filling in buffer_heads if already allocated
+ * or getblk() if they are not.  Returns the number of blocks inserted
+ * (0 == error.)
+ */
+int isofs_get_blocks(struct inode *inode, long iblock,
+		     struct buffer_head **bh_result, unsigned long nblocks)
+{
+	unsigned long b_off;
+	unsigned offset, sect_size;
+	unsigned int firstext;
+	unsigned long nextino;
+	int section, rv;
+
+	lock_kernel();
+
+	rv = 0;
+	if (iblock < 0) {
+		printk("isofs_get_blocks: block < 0\n");
+		goto abort;
+	}
+
+	b_off = iblock;
+	
+	offset    = 0;
+	firstext  = inode->u.isofs_i.i_first_extent;
+	sect_size = inode->u.isofs_i.i_section_size >> ISOFS_BUFFER_BITS(inode);
+	nextino   = inode->u.isofs_i.i_next_section_ino;
+	section   = 0;
+
+	while ( nblocks ) {
+		/* If we are *way* beyond the end of the file, print a message.
+		 * Access beyond the end of the file up to the next page boundary
+		 * is normal, however because of the way the page cache works.
+		 * In this case, we just return 0 so that we can properly fill
+		 * the page with useless information without generating any
+		 * I/O errors.
+		 */
+		if (b_off > ((inode->i_size + PAGE_CACHE_SIZE - 1) >> ISOFS_BUFFER_BITS(inode))) {
+			printk("isofs_get_blocks: block >= EOF (%ld, %ld)\n",
+			       iblock, (unsigned long) inode->i_size);
+			goto abort;
+		}
+		
+		if (nextino) {
+			while (b_off >= (offset + sect_size)) {
+				struct inode *ninode;
+				
+				offset += sect_size;
+				if (nextino == 0)
+					goto abort;
+				ninode = iget(inode->i_sb, nextino);
+				if (!ninode)
+					goto abort;
+				firstext  = ninode->u.isofs_i.i_first_extent;
+				sect_size = ninode->u.isofs_i.i_section_size;
+				nextino   = ninode->u.isofs_i.i_next_section_ino;
+				iput(ninode);
+				
+				if (++section > 100) {
+					printk("isofs_get_blocks: More than 100 file sections ?!?, aborting...\n");
+					printk("isofs_get_blocks: ino=%lu block=%ld firstext=%u sect_size=%u nextino=%lu\n",
+					       inode->i_ino, iblock, firstext, (unsigned) sect_size, nextino);
+					goto abort;
+				}
+			}
+		}
+		
+		if ( *bh_result ) {
+			(*bh_result)->b_dev      = inode->i_dev;
+			(*bh_result)->b_blocknr  = firstext + b_off - offset;
+			(*bh_result)->b_state   |= (1UL << BH_Mapped);
+		} else {
+			*bh_result = sb_getblk(inode->i_sb, firstext+b_off-offset);
+			if ( !*bh_result )
+				goto abort;
+		}
+		bh_result++;	/* Next buffer head */
+		b_off++;	/* Next buffer offset */
+		nblocks--;
+		rv++;
+	}
+
+
+abort:
+	unlock_kernel();
+	return rv;
+}
+
+/*
+ * Used by the standard interfaces.
+ */
+static int isofs_get_block(struct inode *inode, long iblock,
+		    struct buffer_head *bh_result, int create)
+{
+	if ( create ) {
+		printk("isofs_get_block: Kernel tries to allocate a block\n");
+		return -EROFS;
+	}
+
+	return isofs_get_blocks(inode, iblock, &bh_result, 1) ? 0 : -EIO;
+}
+
+static int isofs_bmap(struct inode *inode, int block)
+{
+	struct buffer_head dummy;
+	int error;
+
+	dummy.b_state = 0;
+	dummy.b_blocknr = -1000;
+	error = isofs_get_block(inode, block, &dummy, 0);
+	if (!error)
+		return dummy.b_blocknr;
+	return 0;
+}
+
+struct buffer_head *isofs_bread(struct inode *inode, unsigned int block)
+{
+	unsigned int blknr = isofs_bmap(inode, block);
+	if (!blknr)
+		return NULL;
+	return sb_bread(inode->i_sb, blknr);
+}
+
+static int isofs_readpage(struct file *file, struct page *page)
+{
+	return block_read_full_page(page,isofs_get_block);
+}
+
+static int _isofs_bmap(struct address_space *mapping, long block)
+{
+	return generic_block_bmap(mapping,block,isofs_get_block);
+}
+
+static struct address_space_operations isofs_aops = {
+	readpage: isofs_readpage,
+	sync_page: block_sync_page,
+	bmap: _isofs_bmap
+};
+
+static inline void test_and_set_uid(uid_t *p, uid_t value)
+{
+	if(value) {
+		*p = value;
+	}
+}
+
+static inline void test_and_set_gid(gid_t *p, gid_t value)
+{
+        if(value) {
+                *p = value;
+        }
+}
+
+static int isofs_read_level3_size(struct inode * inode)
+{
+	unsigned long f_pos = inode->i_ino;
+	unsigned long bufsize = ISOFS_BUFFER_SIZE(inode);
+	int high_sierra = inode->i_sb->u.isofs_sb.s_high_sierra;
+	struct buffer_head * bh = NULL;
+	unsigned long block, offset;
+	int i = 0;
+	int more_entries = 0;
+	struct iso_directory_record * tmpde = NULL;
+
+	inode->i_size = 0;
+	inode->u.isofs_i.i_next_section_ino = 0;
+
+	block = f_pos >> ISOFS_BUFFER_BITS(inode);
+	offset = f_pos & (bufsize-1);
+
+	do {
+		struct iso_directory_record * de;
+		unsigned int de_len;
+
+		if (!bh) {
+			bh = sb_bread(inode->i_sb, block);
+			if (!bh)
+				goto out_noread;
+		}
+		de = (struct iso_directory_record *) (bh->b_data + offset);
+		de_len = *(unsigned char *) de;
+
+		if (de_len == 0) {
+			brelse(bh);
+			bh = NULL;
+			f_pos = (f_pos + ISOFS_BLOCK_SIZE) & ~(ISOFS_BLOCK_SIZE - 1);
+			block = f_pos >> ISOFS_BUFFER_BITS(inode);
+			offset = 0;
+			continue;
+		}
+
+		offset += de_len;
+
+		/* Make sure we have a full directory entry */
+		if (offset >= bufsize) {
+			int slop = bufsize - offset + de_len;
+			if (!tmpde) {
+				tmpde = kmalloc(256, GFP_KERNEL);
+				if (!tmpde)
+					goto out_nomem;
+			}
+			memcpy(tmpde, de, slop);
+			offset &= bufsize - 1;
+			block++;
+			brelse(bh);
+			bh = NULL;
+			if (offset) {
+				bh = sb_bread(inode->i_sb, block);
+				if (!bh)
+					goto out_noread;
+				memcpy((void *) tmpde + slop, bh->b_data, offset);
+			}
+			de = tmpde;
+		}
+
+		inode->i_size += isonum_733(de->size);
+		if (i == 1)
+			inode->u.isofs_i.i_next_section_ino = f_pos;
+
+		more_entries = de->flags[-high_sierra] & 0x80;
+
+		f_pos += de_len;
+		i++;
+		if(i > 100)
+			goto out_toomany;
+	} while(more_entries);
+out:
+	if (tmpde)
+		kfree(tmpde);
+	if (bh)
+		brelse(bh);
+	return 0;
+
+out_nomem:
+	if (bh)
+		brelse(bh);
+	return -ENOMEM;
+
+out_noread:
+	printk(KERN_INFO "ISOFS: unable to read i-node block %lu\n", block);
+	if (tmpde)
+		kfree(tmpde);
+	return -EIO;
+
+out_toomany:
+	printk(KERN_INFO "isofs_read_level3_size: "
+		"More than 100 file sections ?!?, aborting...\n"
+	  	"isofs_read_level3_size: inode=%lu ino=%lu\n",
+		inode->i_ino, f_pos);
+	goto out;
+}
+
+static void isofs_read_inode(struct inode * inode)
+{
+	struct super_block *sb = inode->i_sb;
+	unsigned long bufsize = ISOFS_BUFFER_SIZE(inode);
+	int block = inode->i_ino >> ISOFS_BUFFER_BITS(inode);
+	int high_sierra = sb->u.isofs_sb.s_high_sierra;
+	struct buffer_head * bh = NULL;
+	struct iso_directory_record * de;
+	struct iso_directory_record * tmpde = NULL;
+	unsigned int de_len;
+	unsigned long offset;
+	int volume_seq_no, i;
+
+	bh = sb_bread(inode->i_sb, block);
+	if (!bh)
+		goto out_badread;
+
+	offset = (inode->i_ino & (bufsize - 1));
+	de = (struct iso_directory_record *) (bh->b_data + offset);
+	de_len = *(unsigned char *) de;
+
+	if (offset + de_len > bufsize) {
+		int frag1 = bufsize - offset;
+
+		tmpde = kmalloc(de_len, GFP_KERNEL);
+		if (tmpde == NULL) {
+			printk(KERN_INFO "isofs_read_inode: out of memory\n");
+			goto fail;
+		}
+		memcpy(tmpde, bh->b_data + offset, frag1);
+		brelse(bh);
+		bh = sb_bread(inode->i_sb, ++block);
+		if (!bh)
+			goto out_badread;
+		memcpy((char *)tmpde+frag1, bh->b_data, de_len - frag1);
+		de = tmpde;
+	}
+
+	/* Assume it is a normal-format file unless told otherwise */
+	inode->u.isofs_i.i_file_format = isofs_file_normal;
+
+	if (de->flags[-high_sierra] & 2) {
+		inode->i_mode = S_IRUGO | S_IXUGO | S_IFDIR;
+		inode->i_nlink = 1; /* Set to 1.  We know there are 2, but
+				       the find utility tries to optimize
+				       if it is 2, and it screws up.  It is
+				       easier to give 1 which tells find to
+				       do it the hard way. */
+	} else {
+ 		/* Everybody gets to read the file. */
+		inode->i_mode = inode->i_sb->u.isofs_sb.s_mode;
+		inode->i_nlink = 1;
+	        inode->i_mode |= S_IFREG;
+		/* If there are no periods in the name,
+		 * then set the execute permission bit
+		 */
+		for(i=0; i< de->name_len[0]; i++)
+			if(de->name[i]=='.' || de->name[i]==';')
+				break;
+		if(i == de->name_len[0] || de->name[i] == ';')
+			inode->i_mode |= S_IXUGO; /* execute permission */
+	}
+	inode->i_uid = inode->i_sb->u.isofs_sb.s_uid;
+	inode->i_gid = inode->i_sb->u.isofs_sb.s_gid;
+	inode->i_blocks = inode->i_blksize = 0;
+
+
+	inode->u.isofs_i.i_section_size = isonum_733 (de->size);
+	if(de->flags[-high_sierra] & 0x80) {
+		if(isofs_read_level3_size(inode)) goto fail;
+	} else {
+		inode->i_size = isonum_733 (de->size);
+	}
+
+	/*
+	 * Some dipshit decided to store some other bit of information
+	 * in the high byte of the file length.  Truncate in case
+	 * this CDROM was mounted with the cruft option.
+	 */
+
+	if (inode->i_sb->u.isofs_sb.s_cruft == 'y')
+		inode->i_size &= 0x00ffffff;
+
+	if (de->interleave[0]) {
+		printk("Interleaved files not (yet) supported.\n");
+		inode->i_size = 0;
+	}
+
+	/* I have no idea what file_unit_size is used for, so
+	   we will flag it for now */
+	if (de->file_unit_size[0] != 0) {
+		printk("File unit size != 0 for ISO file (%ld).\n",
+		       inode->i_ino);
+	}
+
+	/* I have no idea what other flag bits are used for, so
+	   we will flag it for now */
+#ifdef DEBUG
+	if((de->flags[-high_sierra] & ~2)!= 0){
+		printk("Unusual flag settings for ISO file (%ld %x).\n",
+		       inode->i_ino, de->flags[-high_sierra]);
+	}
+#endif
+
+	inode->i_mtime = inode->i_atime = inode->i_ctime =
+		iso_date(de->date, high_sierra);
+
+	inode->u.isofs_i.i_first_extent = (isonum_733 (de->extent) +
+					   isonum_711 (de->ext_attr_length));
+
+	/* Set the number of blocks for stat() - should be done before RR */
+	inode->i_blksize = PAGE_CACHE_SIZE; /* For stat() only */
+	inode->i_blocks  = (inode->i_size + 511) >> 9;
+
+	/*
+	 * Now test for possible Rock Ridge extensions which will override
+	 * some of these numbers in the inode structure.
+	 */
+
+	if (!high_sierra) {
+		parse_rock_ridge_inode(de, inode);
+		/* if we want uid/gid set, override the rock ridge setting */
+		test_and_set_uid(&inode->i_uid, inode->i_sb->u.isofs_sb.s_uid);
+		test_and_set_gid(&inode->i_gid, inode->i_sb->u.isofs_sb.s_gid);
+	}
+
+	/* get the volume sequence number */
+	volume_seq_no = isonum_723 (de->volume_sequence_number) ;
+
+	/* Install the inode operations vector */
+	if (S_ISREG(inode->i_mode)) {
+		inode->i_fop = &generic_ro_fops;
+		switch ( inode->u.isofs_i.i_file_format ) {
+#ifdef CONFIG_ZISOFS
+		case isofs_file_compressed:
+			inode->i_data.a_ops = &zisofs_aops;
+			break;
+#endif
+		default:
+			inode->i_data.a_ops = &isofs_aops;
+			break;
+		}
+	} else if (S_ISDIR(inode->i_mode)) {
+		inode->i_op = &isofs_dir_inode_operations;
+		inode->i_fop = &isofs_dir_operations;
+	} else if (S_ISLNK(inode->i_mode)) {
+		inode->i_op = &page_symlink_inode_operations;
+		inode->i_data.a_ops = &isofs_symlink_aops;
+	} else
+		/* XXX - parse_rock_ridge_inode() had already set i_rdev. */
+		init_special_inode(inode, inode->i_mode,
+				   kdev_t_to_nr(inode->i_rdev));
+ out:
+	if (tmpde)
+		kfree(tmpde);
+	if (bh)
+		brelse(bh);
+	return;
+
+ out_badread:
+	printk(KERN_WARNING "ISOFS: unable to read i-node block\n");
+ fail:
+	make_bad_inode(inode);
+	goto out;
+}
+
+#ifdef LEAK_CHECK
+#undef malloc
+#undef free_s
+#undef sb_bread
+#undef brelse
+
+void * leak_check_malloc(unsigned int size){
+  void * tmp;
+  check_malloc++;
+  tmp = kmalloc(size, GFP_KERNEL);
+  return tmp;
+}
+
+void leak_check_free_s(void * obj, int size){
+  check_malloc--;
+  return kfree(obj);
+}
+
+struct buffer_head * leak_check_bread(struct super_block *sb, int block){
+  check_bread++;
+  return sb_bread(sb, block);
+}
+
+void leak_check_brelse(struct buffer_head * bh){
+  check_bread--;
+  return brelse(bh);
+}
+
+#endif
+
+static DECLARE_FSTYPE_DEV(iso9660_fs_type, "iso9660", isofs_read_super);
+
+static int __init init_iso9660_fs(void)
+{
+#ifdef CONFIG_ZISOFS
+	int err;
+
+	err = zisofs_init();
+	if ( err )
+		return err;
+#endif
+        return register_filesystem(&iso9660_fs_type);
+}
+
+static void __exit exit_iso9660_fs(void)
+{
+        unregister_filesystem(&iso9660_fs_type);
+#ifdef CONFIG_ZISOFS
+	zisofs_cleanup();
+#endif
+}
+
+EXPORT_NO_SYMBOLS;
+
+module_init(init_iso9660_fs)
+module_exit(exit_iso9660_fs)
+MODULE_LICENSE("GPL");
+
diff --git a/fs/isofs/joliet.c b/fs/isofs/joliet.c
new file mode 100644
index 00000000000000..427595f3840fca
--- /dev/null
+++ b/fs/isofs/joliet.c
@@ -0,0 +1,103 @@
+/*
+ *  linux/fs/isofs/joliet.c
+ *
+ *  (C) 1996 Gordon Chaffee
+ *
+ *  Joliet: Microsoft's Unicode extensions to iso9660
+ */
+
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/slab.h>
+#include <linux/iso_fs.h>
+#include <asm/unaligned.h>
+
+/*
+ * Convert Unicode 16 to UTF8 or ASCII.
+ */
+static int
+uni16_to_x8(unsigned char *ascii, u16 *uni, int len, struct nls_table *nls)
+{
+	wchar_t *ip, ch;
+	unsigned char *op;
+
+	ip = uni;
+	op = ascii;
+
+	while ((ch = get_unaligned(ip)) && len) {
+		int llen;
+		ch = be16_to_cpu(ch);
+		if ((llen = nls->uni2char(ch, op, NLS_MAX_CHARSET_SIZE)) > 0)
+			op += llen;
+		else
+			*op++ = '?';
+		ip++;
+
+		len--;
+	}
+	*op = 0;
+	return (op - ascii);
+}
+
+/* Convert big endian wide character string to utf8 */
+static int
+wcsntombs_be(__u8 *s, const __u8 *pwcs, int inlen, int maxlen)
+{
+	const __u8 *ip;
+	__u8 *op;
+	int size;
+	__u16 c;
+
+	op = s;
+	ip = pwcs;
+	while ((*ip || ip[1]) && (maxlen > 0) && (inlen > 0)) {
+		c = (*ip << 8) | ip[1];
+		if (c > 0x7f) {
+			size = utf8_wctomb(op, c, maxlen);
+			if (size == -1) {
+				/* Ignore character and move on */
+				maxlen--;
+			} else {
+				op += size;
+				maxlen -= size;
+			}
+		} else {
+			*op++ = (__u8) c;
+		}
+		ip += 2;
+		inlen--;
+	}
+	return (op - s);
+}
+
+int
+get_joliet_filename(struct iso_directory_record * de, unsigned char *outname, struct inode * inode)
+{
+	unsigned char utf8;
+	struct nls_table *nls;
+	unsigned char len = 0;
+
+	utf8 = inode->i_sb->u.isofs_sb.s_utf8;
+	nls = inode->i_sb->u.isofs_sb.s_nls_iocharset;
+
+	if (utf8) {
+		len = wcsntombs_be(outname, de->name,
+				   de->name_len[0] >> 1, PAGE_SIZE);
+	} else {
+		len = uni16_to_x8(outname, (u16 *) de->name,
+				  de->name_len[0] >> 1, nls);
+	}
+	if ((len > 2) && (outname[len-2] == ';') && (outname[len-1] == '1')) {
+		len -= 2;
+	}
+
+	/*
+	 * Windows doesn't like periods at the end of a name,
+	 * so neither do we
+	 */
+	while (len >= 2 && (outname[len-1] == '.')) {
+		len--;
+	}
+
+	return len;
+}
diff --git a/fs/isofs/namei.c b/fs/isofs/namei.c
new file mode 100644
index 00000000000000..13e79d4d5193c0
--- /dev/null
+++ b/fs/isofs/namei.c
@@ -0,0 +1,182 @@
+/*
+ *  linux/fs/isofs/namei.c
+ *
+ *  (C) 1992  Eric Youngdale Modified for ISO 9660 filesystem.
+ *
+ *  (C) 1991  Linus Torvalds - minix filesystem
+ */
+
+#include <linux/sched.h>
+#include <linux/iso_fs.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/stat.h>
+#include <linux/fcntl.h>
+#include <linux/slab.h>
+#include <linux/errno.h>
+#include <linux/config.h>	/* Joliet? */
+
+#include <asm/uaccess.h>
+
+/*
+ * ok, we cannot use strncmp, as the name is not in our data space.
+ * Thus we'll have to use isofs_match. No big problem. Match also makes
+ * some sanity tests.
+ */
+static int
+isofs_cmp(struct dentry * dentry, const char * compare, int dlen)
+{
+	struct qstr qstr;
+
+	if (!compare)
+		return 1;
+
+	/* check special "." and ".." files */
+	if (dlen == 1) {
+		/* "." */
+		if (compare[0] == 0) {
+			if (!dentry->d_name.len)
+				return 0;
+			compare = ".";
+		} else if (compare[0] == 1) {
+			compare = "..";
+			dlen = 2;
+		}
+	}
+
+	qstr.name = compare;
+	qstr.len = dlen;
+	return dentry->d_op->d_compare(dentry, &dentry->d_name, &qstr);
+}
+
+/*
+ *	isofs_find_entry()
+ *
+ * finds an entry in the specified directory with the wanted name. It
+ * returns the inode number of the found entry, or 0 on error.
+ */
+static unsigned long
+isofs_find_entry(struct inode *dir, struct dentry *dentry,
+	char * tmpname, struct iso_directory_record * tmpde)
+{
+	unsigned long inode_number;
+	unsigned long bufsize = ISOFS_BUFFER_SIZE(dir);
+	unsigned char bufbits = ISOFS_BUFFER_BITS(dir);
+	unsigned int block, f_pos, offset;
+	struct buffer_head * bh = NULL;
+
+	if (!dir->u.isofs_i.i_first_extent)
+		return 0;
+  
+	f_pos = 0;
+	offset = 0;
+	block = 0;
+
+	while (f_pos < dir->i_size) {
+		struct iso_directory_record * de;
+		int de_len, match, i, dlen;
+		char *dpnt;
+
+		if (!bh) {
+			bh = isofs_bread(dir, block);
+			if (!bh)
+				return 0;
+		}
+
+		de = (struct iso_directory_record *) (bh->b_data + offset);
+		inode_number = (bh->b_blocknr << bufbits) + offset;
+
+		de_len = *(unsigned char *) de;
+		if (!de_len) {
+			brelse(bh);
+			bh = NULL;
+			f_pos = (f_pos + ISOFS_BLOCK_SIZE) & ~(ISOFS_BLOCK_SIZE - 1);
+			block = f_pos >> bufbits;
+			offset = 0;
+			continue;
+		}
+
+		offset += de_len;
+		f_pos += de_len;
+
+		/* Make sure we have a full directory entry */
+		if (offset >= bufsize) {
+			int slop = bufsize - offset + de_len;
+			memcpy(tmpde, de, slop);
+			offset &= bufsize - 1;
+			block++;
+			brelse(bh);
+			bh = NULL;
+			if (offset) {
+				bh = isofs_bread(dir, block);
+				if (!bh)
+					return 0;
+				memcpy((void *) tmpde + slop, bh->b_data, offset);
+			}
+			de = tmpde;
+		}
+
+		dlen = de->name_len[0];
+		dpnt = de->name;
+
+		if (dir->i_sb->u.isofs_sb.s_rock &&
+		    ((i = get_rock_ridge_filename(de, tmpname, dir)))) {
+			dlen = i; 	/* possibly -1 */
+			dpnt = tmpname;
+#ifdef CONFIG_JOLIET
+		} else if (dir->i_sb->u.isofs_sb.s_joliet_level) {
+			dlen = get_joliet_filename(de, tmpname, dir);
+			dpnt = tmpname;
+#endif
+		} else if (dir->i_sb->u.isofs_sb.s_mapping == 'a') {
+			dlen = get_acorn_filename(de, tmpname, dir);
+			dpnt = tmpname;
+		} else if (dir->i_sb->u.isofs_sb.s_mapping == 'n') {
+			dlen = isofs_name_translate(de, tmpname, dir);
+			dpnt = tmpname;
+		}
+
+		/*
+		 * Skip hidden or associated files unless unhide is set 
+		 */
+		match = 0;
+		if (dlen > 0 &&
+		    (!(de->flags[-dir->i_sb->u.isofs_sb.s_high_sierra] & 5)
+		     || dir->i_sb->u.isofs_sb.s_unhide == 'y'))
+		{
+			match = (isofs_cmp(dentry,dpnt,dlen) == 0);
+		}
+		if (match) {
+			if (bh) brelse(bh);
+			return inode_number;
+		}
+	}
+	if (bh) brelse(bh);
+	return 0;
+}
+
+struct dentry *isofs_lookup(struct inode * dir, struct dentry * dentry)
+{
+	unsigned long ino;
+	struct inode *inode;
+	struct page *page;
+
+	dentry->d_op = dir->i_sb->s_root->d_op;
+
+	page = alloc_page(GFP_USER);
+	if (!page)
+		return ERR_PTR(-ENOMEM);
+
+	ino = isofs_find_entry(dir, dentry, page_address(page),
+			       1024 + page_address(page));
+	__free_page(page);
+
+	inode = NULL;
+	if (ino) {
+		inode = iget(dir->i_sb, ino);
+		if (!inode)
+			return ERR_PTR(-EACCES);
+	}
+	d_add(dentry, inode);
+	return NULL;
+}
diff --git a/fs/isofs/rock.c b/fs/isofs/rock.c
new file mode 100644
index 00000000000000..71fc5797a147d6
--- /dev/null
+++ b/fs/isofs/rock.c
@@ -0,0 +1,623 @@
+/*
+ *  linux/fs/isofs/rock.c
+ *
+ *  (C) 1992, 1993  Eric Youngdale
+ *
+ *  Rock Ridge Extensions to iso9660
+ */
+
+#include <linux/stat.h>
+#include <linux/sched.h>
+#include <linux/iso_fs.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/pagemap.h>
+#include <linux/smp_lock.h>
+#include <asm/page.h>
+
+#include "rock.h"
+
+/* These functions are designed to read the system areas of a directory record
+ * and extract relevant information.  There are different functions provided
+ * depending upon what information we need at the time.  One function fills
+ * out an inode structure, a second one extracts a filename, a third one
+ * returns a symbolic link name, and a fourth one returns the extent number
+ * for the file. */
+
+#define SIG(A,B) ((A) | ((B) << 8)) /* isonum_721() */
+
+
+/* This is a way of ensuring that we have something in the system
+   use fields that is compatible with Rock Ridge */
+#define CHECK_SP(FAIL)	       			\
+      if(rr->u.SP.magic[0] != 0xbe) FAIL;	\
+      if(rr->u.SP.magic[1] != 0xef) FAIL;       \
+      inode->i_sb->u.isofs_sb.s_rock_offset=rr->u.SP.skip;
+/* We define a series of macros because each function must do exactly the
+   same thing in certain places.  We use the macros to ensure that everything
+   is done correctly */
+
+#define CONTINUE_DECLS \
+  int cont_extent = 0, cont_offset = 0, cont_size = 0;   \
+  void * buffer = 0
+
+#define CHECK_CE	       			\
+      {cont_extent = isonum_733(rr->u.CE.extent); \
+      cont_offset = isonum_733(rr->u.CE.offset); \
+      cont_size = isonum_733(rr->u.CE.size);}
+
+#define SETUP_ROCK_RIDGE(DE,CHR,LEN)	      		      	\
+  {LEN= sizeof(struct iso_directory_record) + DE->name_len[0];	\
+  if(LEN & 1) LEN++;						\
+  CHR = ((unsigned char *) DE) + LEN;				\
+  LEN = *((unsigned char *) DE) - LEN;                          \
+  if (LEN<0) LEN=0;                                             \
+  if (inode->i_sb->u.isofs_sb.s_rock_offset!=-1)                \
+  {                                                             \
+     LEN-=inode->i_sb->u.isofs_sb.s_rock_offset;                \
+     CHR+=inode->i_sb->u.isofs_sb.s_rock_offset;                \
+     if (LEN<0) LEN=0;                                          \
+  }                                                             \
+}                                     
+
+#define MAYBE_CONTINUE(LABEL,DEV) \
+  {if (buffer) kfree(buffer); \
+  if (cont_extent){ \
+    int block, offset, offset1; \
+    struct buffer_head * pbh; \
+    buffer = kmalloc(cont_size,GFP_KERNEL); \
+    if (!buffer) goto out; \
+    block = cont_extent; \
+    offset = cont_offset; \
+    offset1 = 0; \
+    pbh = sb_bread(DEV->i_sb, block); \
+    if(pbh){       \
+      if (offset > pbh->b_size || offset + cont_size > pbh->b_size){	\
+	brelse(pbh); \
+	goto out; \
+      } \
+      memcpy(buffer + offset1, pbh->b_data + offset, cont_size - offset1); \
+      brelse(pbh); \
+      chr = (unsigned char *) buffer; \
+      len = cont_size; \
+      cont_extent = 0; \
+      cont_size = 0; \
+      cont_offset = 0; \
+      goto LABEL; \
+    }    \
+    printk("Unable to read rock-ridge attributes\n");    \
+  }}
+
+/* This is the inner layer of the get filename routine, and is called
+   for each system area and continuation record related to the file */
+
+int find_rock_ridge_relocation(struct iso_directory_record * de, 
+			       struct inode * inode) {
+  int flag;
+  int len;
+  int retval;
+  unsigned char * chr;
+  CONTINUE_DECLS;
+  flag = 0;
+  
+  /* If this is a '..' then we are looking for the parent, otherwise we
+     are looking for the child */
+  
+  if (de->name[0]==1 && de->name_len[0]==1) flag = 1;
+  /* Return value if we do not find appropriate record. */
+  retval = isonum_733 (de->extent);
+  
+  if (!inode->i_sb->u.isofs_sb.s_rock) return retval;
+
+  SETUP_ROCK_RIDGE(de, chr, len);
+ repeat:
+  {
+    int rrflag, sig;
+    struct rock_ridge * rr;
+    
+    while (len > 1){ /* There may be one byte for padding somewhere */
+      rr = (struct rock_ridge *) chr;
+      if (rr->len == 0) goto out; /* Something got screwed up here */
+      sig = isonum_721(chr);
+      chr += rr->len; 
+      len -= rr->len;
+
+      switch(sig){
+      case SIG('R','R'):
+	rrflag = rr->u.RR.flags[0];
+	if (flag && !(rrflag & RR_PL)) goto out;
+	if (!flag && !(rrflag & RR_CL)) goto out;
+	break;
+      case SIG('S','P'):
+	CHECK_SP(goto out);
+	break;
+      case SIG('C','L'):
+	if (flag == 0) {
+	  retval = isonum_733(rr->u.CL.location);
+	  goto out;
+	}
+	break;
+      case SIG('P','L'):
+	if (flag != 0) {
+	  retval = isonum_733(rr->u.PL.location);
+	  goto out;
+	}
+	break;
+      case SIG('C','E'):
+	CHECK_CE; /* This tells is if there is a continuation record */
+	break;
+      default:
+	break;
+      }
+    }
+  }
+  MAYBE_CONTINUE(repeat, inode);
+  return retval;
+ out:
+  if(buffer) kfree(buffer);
+  return retval;
+}
+
+/* return length of name field; 0: not found, -1: to be ignored */
+int get_rock_ridge_filename(struct iso_directory_record * de,
+			    char * retname, struct inode * inode)
+{
+  int len;
+  unsigned char * chr;
+  CONTINUE_DECLS;
+  int retnamlen = 0, truncate=0;
+ 
+  if (!inode->i_sb->u.isofs_sb.s_rock) return 0;
+  *retname = 0;
+
+  SETUP_ROCK_RIDGE(de, chr, len);
+ repeat:
+  {
+    struct rock_ridge * rr;
+    int sig;
+    
+    while (len > 2){ /* There may be one byte for padding somewhere */
+      rr = (struct rock_ridge *) chr;
+      if (rr->len < 3) goto out; /* Something got screwed up here */
+      sig = isonum_721(chr);
+      chr += rr->len; 
+      len -= rr->len;
+      if (len < 0) goto out;	/* corrupted isofs */
+
+      switch(sig){
+      case SIG('R','R'):
+	if((rr->u.RR.flags[0] & RR_NM) == 0) goto out;
+	break;
+      case SIG('S','P'):
+	CHECK_SP(goto out);
+	break;
+      case SIG('C','E'):
+	CHECK_CE;
+	break;
+      case SIG('N','M'):
+	if (truncate) break;
+	if (rr->len < 5) break;
+        /*
+	 * If the flags are 2 or 4, this indicates '.' or '..'.
+	 * We don't want to do anything with this, because it
+	 * screws up the code that calls us.  We don't really
+	 * care anyways, since we can just use the non-RR
+	 * name.
+	 */
+	if (rr->u.NM.flags & 6) {
+	  break;
+	}
+
+	if (rr->u.NM.flags & ~1) {
+	  printk("Unsupported NM flag settings (%d)\n",rr->u.NM.flags);
+	  break;
+	}
+	if((strlen(retname) + rr->len - 5) >= 254) {
+	  truncate = 1;
+	  break;
+	}
+	strncat(retname, rr->u.NM.name, rr->len - 5);
+	retnamlen += rr->len - 5;
+	break;
+      case SIG('R','E'):
+	if (buffer) kfree(buffer);
+	return -1;
+      default:
+	break;
+      }
+    }
+  }
+  MAYBE_CONTINUE(repeat,inode);
+  return retnamlen; /* If 0, this file did not have a NM field */
+ out:
+  if(buffer) kfree(buffer);
+  return 0;
+}
+
+int parse_rock_ridge_inode_internal(struct iso_directory_record * de,
+			            struct inode * inode,int regard_xa){
+  int len;
+  unsigned char * chr;
+  int symlink_len = 0;
+  CONTINUE_DECLS;
+
+  if (!inode->i_sb->u.isofs_sb.s_rock) return 0;
+
+  SETUP_ROCK_RIDGE(de, chr, len);
+  if (regard_xa)
+   {
+     chr+=14;
+     len-=14;
+     if (len<0) len=0;
+   };
+   
+ repeat:
+  {
+    int cnt, sig;
+    struct inode * reloc;
+    struct rock_ridge * rr;
+    int rootflag;
+    
+    while (len > 2){ /* There may be one byte for padding somewhere */
+      rr = (struct rock_ridge *) chr;
+      if (rr->len < 3) goto out; /* Something got screwed up here */
+      sig = isonum_721(chr);
+      chr += rr->len; 
+      len -= rr->len;
+      if (len < 0) goto out;	/* corrupted isofs */
+      
+      switch(sig){
+#ifndef CONFIG_ZISOFS		/* No flag for SF or ZF */
+      case SIG('R','R'):
+	if((rr->u.RR.flags[0] & 
+ 	    (RR_PX | RR_TF | RR_SL | RR_CL)) == 0) goto out;
+	break;
+#endif
+      case SIG('S','P'):
+	CHECK_SP(goto out);
+	break;
+      case SIG('C','E'):
+	CHECK_CE;
+	break;
+      case SIG('E','R'):
+	inode->i_sb->u.isofs_sb.s_rock = 1;
+	printk(KERN_DEBUG "ISO 9660 Extensions: ");
+	{ int p;
+	  for(p=0;p<rr->u.ER.len_id;p++) printk("%c",rr->u.ER.data[p]);
+	}
+	  printk("\n");
+	break;
+      case SIG('P','X'):
+	inode->i_mode  = isonum_733(rr->u.PX.mode);
+	inode->i_nlink = isonum_733(rr->u.PX.n_links);
+	inode->i_uid   = isonum_733(rr->u.PX.uid);
+	inode->i_gid   = isonum_733(rr->u.PX.gid);
+	break;
+      case SIG('P','N'):
+	{ int high, low;
+	  high = isonum_733(rr->u.PN.dev_high);
+	  low = isonum_733(rr->u.PN.dev_low);
+	  /*
+	   * The Rock Ridge standard specifies that if sizeof(dev_t) <= 4,
+	   * then the high field is unused, and the device number is completely
+	   * stored in the low field.  Some writers may ignore this subtlety,
+	   * and as a result we test to see if the entire device number is
+	   * stored in the low field, and use that.
+	   */
+	  if((low & ~0xff) && high == 0) {
+	    inode->i_rdev = MKDEV(low >> 8, low & 0xff);
+	  } else {
+	    inode->i_rdev = MKDEV(high, low);
+	  }
+	}
+	break;
+      case SIG('T','F'):
+	/* Some RRIP writers incorrectly place ctime in the TF_CREATE field.
+	   Try to handle this correctly for either case. */
+	cnt = 0; /* Rock ridge never appears on a High Sierra disk */
+	if(rr->u.TF.flags & TF_CREATE) 
+	  inode->i_ctime = iso_date(rr->u.TF.times[cnt++].time, 0);
+	if(rr->u.TF.flags & TF_MODIFY) 
+	  inode->i_mtime = iso_date(rr->u.TF.times[cnt++].time, 0);
+	if(rr->u.TF.flags & TF_ACCESS) 
+	  inode->i_atime = iso_date(rr->u.TF.times[cnt++].time, 0);
+	if(rr->u.TF.flags & TF_ATTRIBUTES) 
+	  inode->i_ctime = iso_date(rr->u.TF.times[cnt++].time, 0);
+	break;
+      case SIG('S','L'):
+	{int slen;
+	 struct SL_component * slp;
+	 struct SL_component * oldslp;
+	 slen = rr->len - 5;
+	 slp = &rr->u.SL.link;
+	 inode->i_size = symlink_len;
+	 while (slen > 1){
+	   rootflag = 0;
+	   switch(slp->flags &~1){
+	   case 0:
+	     inode->i_size += slp->len;
+	     break;
+	   case 2:
+	     inode->i_size += 1;
+	     break;
+	   case 4:
+	     inode->i_size += 2;
+	     break;
+	   case 8:
+	     rootflag = 1;
+	     inode->i_size += 1;
+	     break;
+	   default:
+	     printk("Symlink component flag not implemented\n");
+	   }
+	   slen -= slp->len + 2;
+	   oldslp = slp;
+	   slp = (struct SL_component *) (((char *) slp) + slp->len + 2);
+
+	   if(slen < 2) {
+	     if(    ((rr->u.SL.flags & 1) != 0) 
+		    && ((oldslp->flags & 1) == 0) ) inode->i_size += 1;
+	     break;
+	   }
+
+	   /*
+	    * If this component record isn't continued, then append a '/'.
+	    */
+	   if (!rootflag && (oldslp->flags & 1) == 0)
+		   inode->i_size += 1;
+	 }
+	}
+	symlink_len = inode->i_size;
+	break;
+      case SIG('R','E'):
+	printk(KERN_WARNING "Attempt to read inode for relocated directory\n");
+	goto out;
+      case SIG('C','L'):
+	inode->u.isofs_i.i_first_extent = isonum_733(rr->u.CL.location);
+	reloc = iget(inode->i_sb,
+		     (inode->u.isofs_i.i_first_extent <<
+		      inode -> i_sb -> u.isofs_sb.s_log_zone_size));
+	if (!reloc)
+		goto out;
+	inode->i_mode = reloc->i_mode;
+	inode->i_nlink = reloc->i_nlink;
+	inode->i_uid = reloc->i_uid;
+	inode->i_gid = reloc->i_gid;
+	inode->i_rdev = reloc->i_rdev;
+	inode->i_size = reloc->i_size;
+	inode->i_blocks = reloc->i_blocks;
+	inode->i_atime = reloc->i_atime;
+	inode->i_ctime = reloc->i_ctime;
+	inode->i_mtime = reloc->i_mtime;
+	iput(reloc);
+	break;
+#ifdef CONFIG_ZISOFS
+      case SIG('Z','F'):
+	      if ( !inode->i_sb->u.isofs_sb.s_nocompress ) {
+		      int algo;
+		      algo = isonum_721(rr->u.ZF.algorithm);
+		      if ( algo == SIG('p','z') ) {
+			      int block_shift = isonum_711(&rr->u.ZF.parms[1]);
+			      if ( block_shift < PAGE_CACHE_SHIFT || block_shift > 17 ) {
+				      printk(KERN_WARNING "isofs: Can't handle ZF block size of 2^%d\n", block_shift);
+			      } else {
+				/* Note: we don't change i_blocks here */
+				      inode->u.isofs_i.i_file_format = isofs_file_compressed;
+				/* Parameters to compression algorithm (header size, block size) */
+				      inode->u.isofs_i.i_format_parm[0] = isonum_711(&rr->u.ZF.parms[0]);
+				      inode->u.isofs_i.i_format_parm[1] = isonum_711(&rr->u.ZF.parms[1]);
+				      inode->i_size = isonum_733(rr->u.ZF.real_size);
+			      }
+		      } else {
+			      printk(KERN_WARNING "isofs: Unknown ZF compression algorithm: %c%c\n",
+				     rr->u.ZF.algorithm[0], rr->u.ZF.algorithm[1]);
+		      }
+	      }
+	      break;
+#endif
+      default:
+	break;
+      }
+    }
+  }
+  MAYBE_CONTINUE(repeat,inode);
+  return 0;
+ out:
+  if(buffer) kfree(buffer);
+  return 0;
+}
+
+static char *get_symlink_chunk(char *rpnt, struct rock_ridge *rr, char *plimit)
+{
+	int slen;
+	int rootflag;
+	struct SL_component *oldslp;
+	struct SL_component *slp;
+	slen = rr->len - 5;
+	slp = &rr->u.SL.link;
+	while (slen > 1) {
+		rootflag = 0;
+		switch (slp->flags & ~1) {
+		case 0:
+			if (slp->len > plimit - rpnt)
+				return NULL;
+			memcpy(rpnt, slp->text, slp->len);
+			rpnt+=slp->len;
+			break;
+		case 2:
+			if (rpnt >= plimit)
+				return NULL;
+			*rpnt++='.';
+			break;
+		case 4:
+			if (2 > plimit - rpnt)
+				return NULL;
+			*rpnt++='.';
+			*rpnt++='.';
+			break;
+		case 8:
+			if (rpnt >= plimit)
+				return NULL;
+			rootflag = 1;
+			*rpnt++='/';
+			break;
+		default:
+			printk("Symlink component flag not implemented (%d)\n",
+			     slp->flags);
+		}
+		slen -= slp->len + 2;
+		oldslp = slp;
+		slp = (struct SL_component *) ((char *) slp + slp->len + 2);
+
+		if (slen < 2) {
+			/*
+			 * If there is another SL record, and this component
+			 * record isn't continued, then add a slash.
+			 */
+			if ((!rootflag) && (rr->u.SL.flags & 1) &&
+			    !(oldslp->flags & 1)) {
+				if (rpnt >= plimit)
+					return NULL;
+				*rpnt++='/';
+			}
+			break;
+		}
+
+		/*
+		 * If this component record isn't continued, then append a '/'.
+		 */
+		if (!rootflag && !(oldslp->flags & 1)) {
+			if (rpnt >= plimit)
+				return NULL;
+			*rpnt++='/';
+		}
+	}
+	return rpnt;
+}
+
+int parse_rock_ridge_inode(struct iso_directory_record * de,
+			   struct inode * inode)
+{
+   int result=parse_rock_ridge_inode_internal(de,inode,0);
+   /* if rockridge flag was reset and we didn't look for attributes
+    * behind eventual XA attributes, have a look there */
+   if ((inode->i_sb->u.isofs_sb.s_rock_offset==-1)
+       &&(inode->i_sb->u.isofs_sb.s_rock==2))
+     {
+	result=parse_rock_ridge_inode_internal(de,inode,14);
+     };
+   return result;
+};
+
+/* readpage() for symlinks: reads symlink contents into the page and either
+   makes it uptodate and returns 0 or returns error (-EIO) */
+
+static int rock_ridge_symlink_readpage(struct file *file, struct page *page)
+{
+	struct inode *inode = page->mapping->host;
+	char *link = kmap(page);
+	unsigned long bufsize = ISOFS_BUFFER_SIZE(inode);
+	unsigned char bufbits = ISOFS_BUFFER_BITS(inode);
+	struct buffer_head *bh;
+	char *rpnt = link;
+	unsigned char *pnt;
+	struct iso_directory_record *raw_inode;
+	CONTINUE_DECLS;
+	int block;
+	int sig;
+	int len;
+	unsigned char *chr;
+	struct rock_ridge *rr;
+
+	if (!inode->i_sb->u.isofs_sb.s_rock)
+		goto error;
+
+	block = inode->i_ino >> bufbits;
+	lock_kernel();
+	bh = sb_bread(inode->i_sb, block);
+	if (!bh)
+		goto out_noread;
+
+	pnt = (unsigned char *) bh->b_data + (inode->i_ino & (bufsize - 1));
+
+	raw_inode = (struct iso_directory_record *) pnt;
+
+	/*
+	 * If we go past the end of the buffer, there is some sort of error.
+	 */
+	if ((inode->i_ino & (bufsize - 1)) + *pnt > bufsize)
+		goto out_bad_span;
+
+	/* Now test for possible Rock Ridge extensions which will override
+	   some of these numbers in the inode structure. */
+
+	SETUP_ROCK_RIDGE(raw_inode, chr, len);
+
+      repeat:
+	while (len > 2) { /* There may be one byte for padding somewhere */
+		rr = (struct rock_ridge *) chr;
+		if (rr->len < 3)
+			goto out;	/* Something got screwed up here */
+		sig = isonum_721(chr);
+		chr += rr->len;
+		len -= rr->len;
+		if (len < 0)
+			goto out;	/* corrupted isofs */
+
+		switch (sig) {
+		case SIG('R', 'R'):
+			if ((rr->u.RR.flags[0] & RR_SL) == 0)
+				goto out;
+			break;
+		case SIG('S', 'P'):
+			CHECK_SP(goto out);
+			break;
+		case SIG('S', 'L'):
+			rpnt = get_symlink_chunk(rpnt, rr,
+						 link + (PAGE_SIZE - 1));
+			if (rpnt == NULL)
+				goto out;
+			break;
+		case SIG('C', 'E'):
+			/* This tells is if there is a continuation record */
+			CHECK_CE;
+		default:
+			break;
+		}
+	}
+	MAYBE_CONTINUE(repeat, inode);
+
+	if (rpnt == link)
+		goto fail;
+	brelse(bh);
+	*rpnt = '\0';
+	unlock_kernel();
+	SetPageUptodate(page);
+	kunmap(page);
+	UnlockPage(page);
+	return 0;
+
+	/* error exit from macro */
+      out:
+	if (buffer)
+		kfree(buffer);
+	goto fail;
+      out_noread:
+	printk("unable to read i-node block");
+	goto fail;
+      out_bad_span:
+	printk("symlink spans iso9660 blocks\n");
+      fail:
+	brelse(bh);
+	unlock_kernel();
+      error:
+	SetPageError(page);
+	kunmap(page);
+	UnlockPage(page);
+	return -EIO;
+}
+
+struct address_space_operations isofs_symlink_aops = {
+	readpage:	rock_ridge_symlink_readpage
+};
diff --git a/fs/isofs/rock.h b/fs/isofs/rock.h
new file mode 100644
index 00000000000000..deaf5c8e8b4a56
--- /dev/null
+++ b/fs/isofs/rock.h
@@ -0,0 +1,119 @@
+/* These structs are used by the system-use-sharing protocol, in which the
+   Rock Ridge extensions are embedded.  It is quite possible that other
+   extensions are present on the disk, and this is fine as long as they
+   all use SUSP */
+
+struct SU_SP{
+  unsigned char magic[2];
+  unsigned char skip;
+} __attribute__((packed));
+
+struct SU_CE{
+  char extent[8];
+  char offset[8];
+  char size[8];
+};
+
+struct SU_ER{
+  unsigned char len_id;
+  unsigned char len_des;
+  unsigned char len_src;
+  unsigned char ext_ver;
+  char data[0];
+} __attribute__((packed));
+
+struct RR_RR{
+  char flags[1];
+} __attribute__((packed));
+
+struct RR_PX{
+  char mode[8];
+  char n_links[8];
+  char uid[8];
+  char gid[8];
+};
+
+struct RR_PN{
+  char dev_high[8];
+  char dev_low[8];
+};
+
+
+struct SL_component{
+  unsigned char flags;
+  unsigned char len;
+  char text[0];
+} __attribute__((packed));
+
+struct RR_SL{
+  unsigned char flags;
+  struct SL_component link;
+} __attribute__((packed));
+
+struct RR_NM{
+  unsigned char flags;
+  char name[0];
+} __attribute__((packed));
+
+struct RR_CL{
+  char location[8];
+};
+
+struct RR_PL{
+  char location[8];
+};
+
+struct stamp{
+  char time[7];
+} __attribute__((packed));
+
+struct RR_TF{
+  char flags;
+  struct stamp times[0];  /* Variable number of these beasts */
+} __attribute__((packed));
+
+/* Linux-specific extension for transparent decompression */
+struct RR_ZF{
+  char algorithm[2];
+  char parms[2];
+  char real_size[8];
+};
+
+/* These are the bits and their meanings for flags in the TF structure. */
+#define TF_CREATE 1
+#define TF_MODIFY 2
+#define TF_ACCESS 4
+#define TF_ATTRIBUTES 8
+#define TF_BACKUP 16
+#define TF_EXPIRATION 32
+#define TF_EFFECTIVE 64
+#define TF_LONG_FORM 128
+
+struct rock_ridge{
+  char signature[2];
+  unsigned char len;
+  unsigned char version;
+  union{
+    struct SU_SP SP;
+    struct SU_CE CE;
+    struct SU_ER ER;
+    struct RR_RR RR;
+    struct RR_PX PX;
+    struct RR_PN PN;
+    struct RR_SL SL;
+    struct RR_NM NM;
+    struct RR_CL CL;
+    struct RR_PL PL;
+    struct RR_TF TF;
+    struct RR_ZF ZF;
+  } u;
+};
+
+#define RR_PX 1   /* POSIX attributes */
+#define RR_PN 2   /* POSIX devices */
+#define RR_SL 4   /* Symbolic link */
+#define RR_NM 8   /* Alternate Name */
+#define RR_CL 16  /* Child link */
+#define RR_PL 32  /* Parent link */
+#define RR_RE 64  /* Relocation directory */
+#define RR_TF 128 /* Timestamps */
diff --git a/fs/isofs/util.c b/fs/isofs/util.c
new file mode 100644
index 00000000000000..69a58cb025e4a3
--- /dev/null
+++ b/fs/isofs/util.c
@@ -0,0 +1,82 @@
+/*
+ *  linux/fs/isofs/util.c
+ */
+
+#include <linux/time.h>
+#include <linux/iso_fs.h>
+
+/* 
+ * We have to convert from a MM/DD/YY format to the Unix ctime format.
+ * We have to take into account leap years and all of that good stuff.
+ * Unfortunately, the kernel does not have the information on hand to
+ * take into account daylight savings time, but it shouldn't matter.
+ * The time stored should be localtime (with or without DST in effect),
+ * and the timezone offset should hold the offset required to get back
+ * to GMT.  Thus  we should always be correct.
+ */
+
+int iso_date(char * p, int flag)
+{
+	int year, month, day, hour, minute, second, tz;
+	int crtime, days, i;
+
+	year = p[0] - 70;
+	month = p[1];
+	day = p[2];
+	hour = p[3];
+	minute = p[4];
+	second = p[5];
+	if (flag == 0) tz = p[6]; /* High sierra has no time zone */
+	else tz = 0;
+	
+	if (year < 0) {
+		crtime = 0;
+	} else {
+		int monlen[12] = {31,28,31,30,31,30,31,31,30,31,30,31};
+
+		days = year * 365;
+		if (year > 2)
+			days += (year+1) / 4;
+		for (i = 1; i < month; i++)
+			days += monlen[i-1];
+		if (((year+2) % 4) == 0 && month > 2)
+			days++;
+		days += day - 1;
+		crtime = ((((days * 24) + hour) * 60 + minute) * 60)
+			+ second;
+
+		/* sign extend */
+		if (tz & 0x80)
+			tz |= (-1 << 8);
+		
+		/* 
+		 * The timezone offset is unreliable on some disks,
+		 * so we make a sanity check.  In no case is it ever
+		 * more than 13 hours from GMT, which is 52*15min.
+		 * The time is always stored in localtime with the
+		 * timezone offset being what get added to GMT to
+		 * get to localtime.  Thus we need to subtract the offset
+		 * to get to true GMT, which is what we store the time
+		 * as internally.  On the local system, the user may set
+		 * their timezone any way they wish, of course, so GMT
+		 * gets converted back to localtime on the receiving
+		 * system.
+		 *
+		 * NOTE: mkisofs in versions prior to mkisofs-1.10 had
+		 * the sign wrong on the timezone offset.  This has now
+		 * been corrected there too, but if you are getting screwy
+		 * results this may be the explanation.  If enough people
+		 * complain, a user configuration option could be added
+		 * to add the timezone offset in with the wrong sign
+		 * for 'compatibility' with older discs, but I cannot see how
+		 * it will matter that much.
+		 *
+		 * Thanks to kuhlmav@elec.canterbury.ac.nz (Volker Kuhlmann)
+		 * for pointing out the sign error.
+		 */
+		if (-52 <= tz && tz <= 52)
+			crtime -= tz * 15 * 60;
+	}
+	return crtime;
+}		
+	
diff --git a/fs/isofs/zisofs.h b/fs/isofs/zisofs.h
new file mode 100644
index 00000000000000..b49ead7297dc60
--- /dev/null
+++ b/fs/isofs/zisofs.h
@@ -0,0 +1,21 @@
+/* ----------------------------------------------------------------------- *
+ *   
+ *   Copyright 2001 H. Peter Anvin - All Rights Reserved
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, Inc., 675 Mass Ave, Cambridge MA 02139,
+ *   USA; either version 2 of the License, or (at your option) any later
+ *   version; incorporated herein by reference.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * Prototypes for functions exported from the compressed isofs subsystem
+ */
+
+#ifdef CONFIG_ZISOFS
+extern struct address_space_operations zisofs_aops;
+extern int __init zisofs_init(void);
+extern void __exit zisofs_cleanup(void);
+#endif
diff --git a/fs/jbd/Makefile b/fs/jbd/Makefile
new file mode 100644
index 00000000000000..8f52c14c83a576
--- /dev/null
+++ b/fs/jbd/Makefile
@@ -0,0 +1,15 @@
+#
+# fs/jbd/Makefile
+# 
+# Makefile for the linux journaling routines.
+#
+
+export-objs := journal.o
+O_TARGET := jbd.o
+
+obj-y   := transaction.o commit.o recovery.o checkpoint.o revoke.o journal.o
+
+obj-m   := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
+
diff --git a/fs/jbd/checkpoint.c b/fs/jbd/checkpoint.c
new file mode 100644
index 00000000000000..7dbc718ceb668f
--- /dev/null
+++ b/fs/jbd/checkpoint.c
@@ -0,0 +1,606 @@
+/*
+ * linux/fs/checkpoint.c
+ * 
+ * Written by Stephen C. Tweedie <sct@redhat.com>, 1999
+ *
+ * Copyright 1999 Red Hat Software --- All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * Checkpoint routines for the generic filesystem journaling code.  
+ * Part of the ext2fs journaling system.  
+ *
+ * Checkpointing is the process of ensuring that a section of the log is
+ * committed fully to disk, so that that portion of the log can be
+ * reused.
+ */
+
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/jbd.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/locks.h>
+
+extern spinlock_t journal_datalist_lock;
+
+/*
+ * Unlink a buffer from a transaction. 
+ *
+ * Called with journal_datalist_lock held.
+ */
+
+static inline void __buffer_unlink(struct journal_head *jh)
+{
+	transaction_t *transaction;
+
+	transaction = jh->b_cp_transaction;
+	jh->b_cp_transaction = NULL;
+
+	jh->b_cpnext->b_cpprev = jh->b_cpprev;
+	jh->b_cpprev->b_cpnext = jh->b_cpnext;
+	if (transaction->t_checkpoint_list == jh)
+		transaction->t_checkpoint_list = jh->b_cpnext;
+	if (transaction->t_checkpoint_list == jh)
+		transaction->t_checkpoint_list = NULL;
+}
+
+/*
+ * Try to release a checkpointed buffer from its transaction.
+ * Returns 1 if we released it.
+ * Requires journal_datalist_lock
+ */
+static int __try_to_free_cp_buf(struct journal_head *jh)
+{
+	int ret = 0;
+	struct buffer_head *bh = jh2bh(jh);
+
+	if (jh->b_jlist == BJ_None && !buffer_locked(bh) && !buffer_dirty(bh)) {
+		JBUFFER_TRACE(jh, "remove from checkpoint list");
+		__journal_remove_checkpoint(jh);
+		__journal_remove_journal_head(bh);
+		BUFFER_TRACE(bh, "release");
+		/* BUF_LOCKED -> BUF_CLEAN (fwiw) */
+		refile_buffer(bh);
+		__brelse(bh);
+		ret = 1;
+	}
+	return ret;
+}
+
+/*
+ * log_wait_for_space: wait until there is space in the journal.
+ *
+ * Called with the journal already locked, but it will be unlocked if we have
+ * to wait for a checkpoint to free up some space in the log.
+ */
+
+void log_wait_for_space(journal_t *journal, int nblocks)
+{
+	while (log_space_left(journal) < nblocks) {
+		if (journal->j_flags & JFS_ABORT)
+			return;
+		unlock_journal(journal);
+		down(&journal->j_checkpoint_sem);
+		lock_journal(journal);
+		
+		/* Test again, another process may have checkpointed
+		 * while we were waiting for the checkpoint lock */
+		if (log_space_left(journal) < nblocks) {
+			log_do_checkpoint(journal, nblocks);
+		}
+		up(&journal->j_checkpoint_sem);
+	}
+}
+
+/*
+ * Clean up a transaction's checkpoint list.  
+ *
+ * We wait for any pending IO to complete and make sure any clean
+ * buffers are removed from the transaction. 
+ *
+ * Return 1 if we performed any actions which might have destroyed the
+ * checkpoint.  (journal_remove_checkpoint() deletes the transaction when
+ * the last checkpoint buffer is cleansed)
+ *
+ * Called with the journal locked.
+ * Called with journal_datalist_lock held.
+ */
+static int __cleanup_transaction(journal_t *journal, transaction_t *transaction)
+{
+	struct journal_head *jh, *next_jh, *last_jh;
+	struct buffer_head *bh;
+	int ret = 0;
+
+	assert_spin_locked(&journal_datalist_lock);
+	jh = transaction->t_checkpoint_list;
+	if (!jh)
+		return 0;
+
+	last_jh = jh->b_cpprev;
+	next_jh = jh;
+	do {
+		jh = next_jh;
+		bh = jh2bh(jh);
+		if (buffer_locked(bh)) {
+			atomic_inc(&bh->b_count);
+			spin_unlock(&journal_datalist_lock);
+			unlock_journal(journal);
+			wait_on_buffer(bh);
+			/* the journal_head may have gone by now */
+			BUFFER_TRACE(bh, "brelse");
+			__brelse(bh);
+			goto out_return_1;
+		}
+		
+		if (jh->b_transaction != NULL) {
+			transaction_t *transaction = jh->b_transaction;
+			tid_t tid = transaction->t_tid;
+
+			spin_unlock(&journal_datalist_lock);
+			log_start_commit(journal, transaction);
+			unlock_journal(journal);
+			log_wait_commit(journal, tid);
+			goto out_return_1;
+		}
+
+		/*
+		 * We used to test for (jh->b_list != BUF_CLEAN) here.
+		 * But unmap_underlying_metadata() can place buffer onto
+		 * BUF_CLEAN. Since refile_buffer() no longer takes buffers
+		 * off checkpoint lists, we cope with it here
+		 */
+		/*
+		 * AKPM: I think the buffer_jdirty test is redundant - it
+		 * shouldn't have NULL b_transaction?
+		 */
+		next_jh = jh->b_cpnext;
+		if (!buffer_dirty(bh) && !buffer_jdirty(bh)) {
+			BUFFER_TRACE(bh, "remove from checkpoint");
+			__journal_remove_checkpoint(jh);
+			__journal_remove_journal_head(bh);
+			refile_buffer(bh);
+			__brelse(bh);
+			ret = 1;
+		}
+		
+		jh = next_jh;
+	} while (jh != last_jh);
+
+	return ret;
+out_return_1:
+	lock_journal(journal);
+	spin_lock(&journal_datalist_lock);
+	return 1;
+}
+
+#define NR_BATCH	64
+
+static void __flush_batch(struct buffer_head **bhs, int *batch_count)
+{
+	int i;
+
+	spin_unlock(&journal_datalist_lock);
+	ll_rw_block(WRITE, *batch_count, bhs);
+	run_task_queue(&tq_disk);
+	spin_lock(&journal_datalist_lock);
+	for (i = 0; i < *batch_count; i++) {
+		struct buffer_head *bh = bhs[i];
+		clear_bit(BH_JWrite, &bh->b_state);
+		BUFFER_TRACE(bh, "brelse");
+		__brelse(bh);
+	}
+	*batch_count = 0;
+}
+
+/*
+ * Try to flush one buffer from the checkpoint list to disk.
+ *
+ * Return 1 if something happened which requires us to abort the current
+ * scan of the checkpoint list.  
+ *
+ * Called with journal_datalist_lock held.
+ */
+static int __flush_buffer(journal_t *journal, struct journal_head *jh,
+			struct buffer_head **bhs, int *batch_count,
+			int *drop_count)
+{
+	struct buffer_head *bh = jh2bh(jh);
+	int ret = 0;
+
+	if (buffer_dirty(bh) && !buffer_locked(bh) && jh->b_jlist == BJ_None) {
+		J_ASSERT_JH(jh, jh->b_transaction == NULL);
+		
+		/*
+		 * Important: we are about to write the buffer, and
+		 * possibly block, while still holding the journal lock.
+		 * We cannot afford to let the transaction logic start
+		 * messing around with this buffer before we write it to
+		 * disk, as that would break recoverability.  
+		 */
+		BUFFER_TRACE(bh, "queue");
+		atomic_inc(&bh->b_count);
+		J_ASSERT_BH(bh, !test_bit(BH_JWrite, &bh->b_state));
+		set_bit(BH_JWrite, &bh->b_state);
+		bhs[*batch_count] = bh;
+		(*batch_count)++;
+		if (*batch_count == NR_BATCH) {
+			__flush_batch(bhs, batch_count);
+			ret = 1;
+		}
+	} else {
+		int last_buffer = 0;
+		if (jh->b_cpnext == jh) {
+			/* We may be about to drop the transaction.  Tell the
+			 * caller that the lists have changed.
+			 */
+			last_buffer = 1;
+		}
+		if (__try_to_free_cp_buf(jh)) {
+			(*drop_count)++;
+			ret = last_buffer;
+		}
+	}
+	return ret;
+}
+
+	
+/*
+ * Perform an actual checkpoint.  We don't write out only enough to
+ * satisfy the current blocked requests: rather we submit a reasonably
+ * sized chunk of the outstanding data to disk at once for
+ * efficiency.  log_wait_for_space() will retry if we didn't free enough.
+ * 
+ * However, we _do_ take into account the amount requested so that once
+ * the IO has been queued, we can return as soon as enough of it has
+ * completed to disk.  
+ *
+ * The journal should be locked before calling this function.
+ */
+
+/* @@@ `nblocks' is unused.  Should it be used? */
+int log_do_checkpoint (journal_t *journal, int nblocks)
+{
+	transaction_t *transaction, *last_transaction, *next_transaction;
+	int result;
+	int target;
+	int batch_count = 0;
+	struct buffer_head *bhs[NR_BATCH];
+
+	jbd_debug(1, "Start checkpoint\n");
+
+	/* 
+	 * First thing: if there are any transactions in the log which
+	 * don't need checkpointing, just eliminate them from the
+	 * journal straight away.  
+	 */
+	result = cleanup_journal_tail(journal);
+	jbd_debug(1, "cleanup_journal_tail returned %d\n", result);
+	if (result <= 0)
+		return result;
+
+	/*
+	 * OK, we need to start writing disk blocks.  Try to free up a
+	 * quarter of the log in a single checkpoint if we can.
+	 */
+	/*
+	 * AKPM: check this code.  I had a feeling a while back that it
+	 * degenerates into a busy loop at unmount time.
+	 */
+	target = (journal->j_last - journal->j_first) / 4;
+
+	spin_lock(&journal_datalist_lock);
+repeat:
+	transaction = journal->j_checkpoint_transactions;
+	if (transaction == NULL)
+		goto done;
+	last_transaction = transaction->t_cpprev;
+	next_transaction = transaction;
+
+	do {
+		struct journal_head *jh, *last_jh, *next_jh;
+		int drop_count = 0;
+		int cleanup_ret, retry = 0;
+
+		transaction = next_transaction;
+		next_transaction = transaction->t_cpnext;
+		jh = transaction->t_checkpoint_list;
+		last_jh = jh->b_cpprev;
+		next_jh = jh;
+		do {
+			jh = next_jh;
+			next_jh = jh->b_cpnext;
+			retry = __flush_buffer(journal, jh, bhs, &batch_count,
+						&drop_count);
+		} while (jh != last_jh && !retry);
+		if (batch_count) {
+			__flush_batch(bhs, &batch_count);
+			goto repeat;
+		}
+		if (retry)
+			goto repeat;
+		/*
+		 * We have walked the whole transaction list without
+		 * finding anything to write to disk.  We had better be
+		 * able to make some progress or we are in trouble. 
+		 */
+		cleanup_ret = __cleanup_transaction(journal, transaction);
+		J_ASSERT(drop_count != 0 || cleanup_ret != 0);
+		goto repeat;	/* __cleanup may have dropped lock */
+	} while (transaction != last_transaction);
+
+done:
+	spin_unlock(&journal_datalist_lock);
+	result = cleanup_journal_tail(journal);
+	if (result < 0)
+		return result;
+	
+	return 0;
+}
+
+/*
+ * Check the list of checkpoint transactions for the journal to see if
+ * we have already got rid of any since the last update of the log tail
+ * in the journal superblock.  If so, we can instantly roll the
+ * superblock forward to remove those transactions from the log.
+ * 
+ * Return <0 on error, 0 on success, 1 if there was nothing to clean up.
+ * 
+ * Called with the journal lock held.
+ *
+ * This is the only part of the journaling code which really needs to be
+ * aware of transaction aborts.  Checkpointing involves writing to the
+ * main filesystem area rather than to the journal, so it can proceed
+ * even in abort state, but we must not update the journal superblock if
+ * we have an abort error outstanding.
+ */
+
+int cleanup_journal_tail(journal_t *journal)
+{
+	transaction_t * transaction;
+	tid_t		first_tid;
+	unsigned long	blocknr, freed;
+
+	/* OK, work out the oldest transaction remaining in the log, and
+	 * the log block it starts at. 
+	 * 
+	 * If the log is now empty, we need to work out which is the
+	 * next transaction ID we will write, and where it will
+	 * start. */
+
+	/* j_checkpoint_transactions needs locking */
+	spin_lock(&journal_datalist_lock);
+	transaction = journal->j_checkpoint_transactions;
+	if (transaction) {
+		first_tid = transaction->t_tid;
+		blocknr = transaction->t_log_start;
+	} else if ((transaction = journal->j_committing_transaction) != NULL) {
+		first_tid = transaction->t_tid;
+		blocknr = transaction->t_log_start;
+	} else if ((transaction = journal->j_running_transaction) != NULL) {
+		first_tid = transaction->t_tid;
+		blocknr = journal->j_head;
+	} else {
+		first_tid = journal->j_transaction_sequence;
+		blocknr = journal->j_head;
+	}
+	spin_unlock(&journal_datalist_lock);
+	J_ASSERT (blocknr != 0);
+
+	/* If the oldest pinned transaction is at the tail of the log
+           already then there's not much we can do right now. */
+	if (journal->j_tail_sequence == first_tid)
+		return 1;
+
+	/* OK, update the superblock to recover the freed space.
+	 * Physical blocks come first: have we wrapped beyond the end of
+	 * the log?  */
+	freed = blocknr - journal->j_tail;
+	if (blocknr < journal->j_tail)
+		freed = freed + journal->j_last - journal->j_first;
+
+	jbd_debug(1,
+		  "Cleaning journal tail from %d to %d (offset %lu), "
+		  "freeing %lu\n",
+		  journal->j_tail_sequence, first_tid, blocknr, freed);
+
+	journal->j_free += freed;
+	journal->j_tail_sequence = first_tid;
+	journal->j_tail = blocknr;
+	if (!(journal->j_flags & JFS_ABORT))
+		journal_update_superblock(journal, 1);
+	return 0;
+}
+
+
+/* Checkpoint list management */
+
+/*
+ * journal_clean_checkpoint_list
+ *
+ * Find all the written-back checkpoint buffers in the journal and release them.
+ *
+ * Called with the journal locked.
+ * Called with journal_datalist_lock held.
+ * Returns number of bufers reaped (for debug)
+ */
+
+int __journal_clean_checkpoint_list(journal_t *journal)
+{
+	transaction_t *transaction, *last_transaction, *next_transaction;
+	int ret = 0;
+
+	transaction = journal->j_checkpoint_transactions;
+	if (transaction == 0)
+		goto out;
+
+	last_transaction = transaction->t_cpprev;
+	next_transaction = transaction;
+	do {
+		struct journal_head *jh;
+
+		transaction = next_transaction;
+		next_transaction = transaction->t_cpnext;
+		jh = transaction->t_checkpoint_list;
+		if (jh) {
+			struct journal_head *last_jh = jh->b_cpprev;
+			struct journal_head *next_jh = jh;
+			do {
+				jh = next_jh;
+				next_jh = jh->b_cpnext;
+				ret += __try_to_free_cp_buf(jh);
+			} while (jh != last_jh);
+		}
+	} while (transaction != last_transaction);
+out:
+	return ret;
+}
+
+/* 
+ * journal_remove_checkpoint: called after a buffer has been committed
+ * to disk (either by being write-back flushed to disk, or being
+ * committed to the log).
+ *
+ * We cannot safely clean a transaction out of the log until all of the
+ * buffer updates committed in that transaction have safely been stored
+ * elsewhere on disk.  To achieve this, all of the buffers in a
+ * transaction need to be maintained on the transaction's checkpoint
+ * list until they have been rewritten, at which point this function is
+ * called to remove the buffer from the existing transaction's
+ * checkpoint list.  
+ *
+ * This function is called with the journal locked.
+ * This function is called with journal_datalist_lock held.
+ */
+
+void __journal_remove_checkpoint(struct journal_head *jh)
+{
+	transaction_t *transaction;
+	journal_t *journal;
+
+	JBUFFER_TRACE(jh, "entry");
+	
+	if ((transaction = jh->b_cp_transaction) == NULL) {
+		JBUFFER_TRACE(jh, "not on transaction");
+		goto out;
+	}
+
+	journal = transaction->t_journal;
+
+	__buffer_unlink(jh);
+
+	if (transaction->t_checkpoint_list != NULL)
+		goto out;
+	JBUFFER_TRACE(jh, "transaction has no more buffers");
+
+	/* There is one special case to worry about: if we have just
+           pulled the buffer off a committing transaction's forget list,
+           then even if the checkpoint list is empty, the transaction
+           obviously cannot be dropped! */
+
+	if (transaction == journal->j_committing_transaction) {
+		JBUFFER_TRACE(jh, "belongs to committing transaction");
+		goto out;
+	}
+
+	/* OK, that was the last buffer for the transaction: we can now
+	   safely remove this transaction from the log */
+
+	__journal_drop_transaction(journal, transaction);
+
+	/* Just in case anybody was waiting for more transactions to be
+           checkpointed... */
+	wake_up(&journal->j_wait_logspace);
+out:
+	JBUFFER_TRACE(jh, "exit");
+}
+
+void journal_remove_checkpoint(struct journal_head *jh)
+{
+	spin_lock(&journal_datalist_lock);
+	__journal_remove_checkpoint(jh);
+	spin_unlock(&journal_datalist_lock);
+}
+
+/*
+ * journal_insert_checkpoint: put a committed buffer onto a checkpoint
+ * list so that we know when it is safe to clean the transaction out of
+ * the log.
+ *
+ * Called with the journal locked.
+ * Called with journal_datalist_lock held.
+ */
+void __journal_insert_checkpoint(struct journal_head *jh, 
+			       transaction_t *transaction)
+{
+	JBUFFER_TRACE(jh, "entry");
+	J_ASSERT_JH(jh, buffer_dirty(jh2bh(jh)) || buffer_jdirty(jh2bh(jh)));
+	J_ASSERT_JH(jh, jh->b_cp_transaction == NULL);
+
+	assert_spin_locked(&journal_datalist_lock);
+	jh->b_cp_transaction = transaction;
+
+	if (!transaction->t_checkpoint_list) {
+		jh->b_cpnext = jh->b_cpprev = jh;
+	} else {
+		jh->b_cpnext = transaction->t_checkpoint_list;
+		jh->b_cpprev = transaction->t_checkpoint_list->b_cpprev;
+		jh->b_cpprev->b_cpnext = jh;
+		jh->b_cpnext->b_cpprev = jh;
+	}
+	transaction->t_checkpoint_list = jh;
+}
+
+void journal_insert_checkpoint(struct journal_head *jh, 
+			       transaction_t *transaction)
+{
+	spin_lock(&journal_datalist_lock);
+	__journal_insert_checkpoint(jh, transaction);
+	spin_unlock(&journal_datalist_lock);
+}
+
+/*
+ * We've finished with this transaction structure: adios...
+ * 
+ * The transaction must have no links except for the checkpoint by this
+ * point.
+ *
+ * Called with the journal locked.
+ * Called with journal_datalist_lock held.
+ */
+
+void __journal_drop_transaction(journal_t *journal, transaction_t *transaction)
+{
+	assert_spin_locked(&journal_datalist_lock);
+	if (transaction->t_cpnext) {
+		transaction->t_cpnext->t_cpprev = transaction->t_cpprev;
+		transaction->t_cpprev->t_cpnext = transaction->t_cpnext;
+		if (journal->j_checkpoint_transactions == transaction)
+			journal->j_checkpoint_transactions =
+				transaction->t_cpnext;
+		if (journal->j_checkpoint_transactions == transaction)
+			journal->j_checkpoint_transactions = NULL;
+	}
+
+	J_ASSERT (transaction->t_ilist == NULL);
+	J_ASSERT (transaction->t_buffers == NULL);
+	J_ASSERT (transaction->t_sync_datalist == NULL);
+	J_ASSERT (transaction->t_async_datalist == NULL);
+	J_ASSERT (transaction->t_forget == NULL);
+	J_ASSERT (transaction->t_iobuf_list == NULL);
+	J_ASSERT (transaction->t_shadow_list == NULL);
+	J_ASSERT (transaction->t_log_list == NULL);
+	J_ASSERT (transaction->t_checkpoint_list == NULL);
+	J_ASSERT (transaction->t_updates == 0);
+	J_ASSERT (list_empty(&transaction->t_jcb));
+
+	J_ASSERT (transaction->t_journal->j_committing_transaction !=
+					transaction);
+	
+	jbd_debug (1, "Dropping transaction %d, all done\n", 
+		   transaction->t_tid);
+	kfree (transaction);
+}
+
diff --git a/fs/jbd/commit.c b/fs/jbd/commit.c
new file mode 100644
index 00000000000000..0fe067fc3ba941
--- /dev/null
+++ b/fs/jbd/commit.c
@@ -0,0 +1,811 @@
+/*
+ * linux/fs/commit.c
+ *
+ * Written by Stephen C. Tweedie <sct@redhat.com>, 1998
+ *
+ * Copyright 1998 Red Hat corp --- All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * Journal commit routines for the generic filesystem journaling code;
+ * part of the ext2fs journaling system.
+ */
+
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/jbd.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/locks.h>
+#include <linux/mm.h>
+#include <linux/pagemap.h>
+#include <linux/smp_lock.h>
+
+extern spinlock_t journal_datalist_lock;
+
+/*
+ * Default IO end handler for temporary BJ_IO buffer_heads.
+ */
+void journal_end_buffer_io_sync(struct buffer_head *bh, int uptodate)
+{
+	BUFFER_TRACE(bh, "");
+	mark_buffer_uptodate(bh, uptodate);
+	unlock_buffer(bh);
+}
+
+/*
+ * When an ext3-ordered file is truncated, it is possible that many pages are
+ * not sucessfully freed, because they are attached to a committing transaction.
+ * After the transaction commits, these pages are left on the LRU, with no
+ * ->mapping, and with attached buffers.  These pages are trivially reclaimable
+ * by the VM, but their apparent absence upsets the VM accounting, and it makes
+ * the numbers in /proc/meminfo look odd.
+ *
+ * So here, we have a buffer which has just come off the forget list.  Look to
+ * see if we can strip all buffers from the backing page.
+ *
+ * Called under lock_journal(), and possibly under journal_datalist_lock.  The
+ * caller provided us with a ref against the buffer, and we drop that here.
+ */
+static void release_buffer_page(struct buffer_head *bh)
+{
+	struct page *page;
+
+	if (buffer_dirty(bh))
+		goto nope;
+	if (atomic_read(&bh->b_count) != 1)
+		goto nope;
+	page = bh->b_page;
+	if (!page)
+		goto nope;
+	if (page->mapping)
+		goto nope;
+
+	/* OK, it's a truncated page */
+	if (TryLockPage(page))
+		goto nope;
+
+	page_cache_get(page);
+	__brelse(bh);
+	try_to_free_buffers(page, GFP_NOIO);
+	unlock_page(page);
+	page_cache_release(page);
+	return;
+
+nope:
+	__brelse(bh);
+}
+
+/*
+ * journal_commit_transaction
+ *
+ * The primary function for committing a transaction to the log.  This
+ * function is called by the journal thread to begin a complete commit.
+ */
+void journal_commit_transaction(journal_t *journal)
+{
+	transaction_t *commit_transaction;
+	struct journal_head *jh, *new_jh, *descriptor;
+	struct journal_head *next_jh, *last_jh;
+	struct buffer_head *wbuf[64];
+	int bufs;
+	int flags;
+	int err;
+	unsigned long blocknr;
+	char *tagp = NULL;
+	journal_header_t *header;
+	journal_block_tag_t *tag = NULL;
+	int space_left = 0;
+	int first_tag = 0;
+	int tag_flag;
+	int i;
+
+	/*
+	 * First job: lock down the current transaction and wait for
+	 * all outstanding updates to complete.
+	 */
+
+	lock_journal(journal); /* Protect journal->j_running_transaction */
+
+#ifdef COMMIT_STATS
+	spin_lock(&journal_datalist_lock);
+	summarise_journal_usage(journal);
+	spin_unlock(&journal_datalist_lock);
+#endif
+
+	lock_kernel();
+	
+	J_ASSERT (journal->j_running_transaction != NULL);
+	J_ASSERT (journal->j_committing_transaction == NULL);
+
+	commit_transaction = journal->j_running_transaction;
+	J_ASSERT (commit_transaction->t_state == T_RUNNING);
+
+	jbd_debug (1, "JBD: starting commit of transaction %d\n",
+		   commit_transaction->t_tid);
+
+	commit_transaction->t_state = T_LOCKED;
+	while (commit_transaction->t_updates != 0) {
+		unlock_journal(journal);
+		sleep_on(&journal->j_wait_updates);
+		lock_journal(journal);
+	}
+
+	J_ASSERT (commit_transaction->t_outstanding_credits <=
+			journal->j_max_transaction_buffers);
+
+	/* Do we need to erase the effects of a prior journal_flush? */
+	if (journal->j_flags & JFS_FLUSHED) {
+		jbd_debug(3, "super block updated\n");
+		journal_update_superblock(journal, 1);
+	} else {
+		jbd_debug(3, "superblock not updated\n");
+	}
+
+	/*
+	 * First thing we are allowed to do is to discard any remaining
+	 * BJ_Reserved buffers.  Note, it is _not_ permissible to assume
+	 * that there are no such buffers: if a large filesystem
+	 * operation like a truncate needs to split itself over multiple
+	 * transactions, then it may try to do a journal_restart() while
+	 * there are still BJ_Reserved buffers outstanding.  These must
+	 * be released cleanly from the current transaction.
+	 *
+	 * In this case, the filesystem must still reserve write access
+	 * again before modifying the buffer in the new transaction, but
+	 * we do not require it to remember exactly which old buffers it
+	 * has reserved.  This is consistent with the existing behaviour
+	 * that multiple journal_get_write_access() calls to the same
+	 * buffer are perfectly permissable.
+	 */
+
+	while (commit_transaction->t_reserved_list) {
+		jh = commit_transaction->t_reserved_list;
+		JBUFFER_TRACE(jh, "reserved, unused: refile");
+		journal_refile_buffer(jh);
+	}
+
+	/*
+	 * Now try to drop any written-back buffers from the journal's
+	 * checkpoint lists.  We do this *before* commit because it potentially
+	 * frees some memory
+	 */
+	spin_lock(&journal_datalist_lock);
+	__journal_clean_checkpoint_list(journal);
+	spin_unlock(&journal_datalist_lock);
+
+	/* First part of the commit: force the revoke list out to disk.
+	 * The revoke code generates its own metadata blocks on disk for this.
+	 *
+	 * It is important that we do this while the transaction is
+	 * still locked.  Generating the revoke records should not
+	 * generate any IO stalls, so this should be quick; and doing
+	 * the work while we have the transaction locked means that we
+	 * only ever have to maintain the revoke list for one
+	 * transaction at a time.
+	 */
+
+	jbd_debug (3, "JBD: commit phase 1\n");
+
+	journal_write_revoke_records(journal, commit_transaction);
+
+	/*
+	 * Now that we have built the revoke records, we can start
+	 * reusing the revoke list for a new running transaction.  We
+	 * can now safely start committing the old transaction: time to
+	 * get a new running transaction for incoming filesystem updates
+	 */
+
+	commit_transaction->t_state = T_FLUSH;
+
+	wake_up(&journal->j_wait_transaction_locked);
+
+	journal->j_committing_transaction = commit_transaction;
+	journal->j_running_transaction = NULL;
+
+	commit_transaction->t_log_start = journal->j_head;
+
+	unlock_kernel();
+	
+	jbd_debug (3, "JBD: commit phase 2\n");
+
+	/*
+	 * Now start flushing things to disk, in the order they appear
+	 * on the transaction lists.  Data blocks go first.
+	 */
+
+	/*
+	 * Whenever we unlock the journal and sleep, things can get added
+	 * onto ->t_datalist, so we have to keep looping back to write_out_data
+	 * until we *know* that the list is empty.
+	 */
+write_out_data:
+
+	/*
+	 * Cleanup any flushed data buffers from the data list.  Even in
+	 * abort mode, we want to flush this out as soon as possible.
+	 *
+	 * We take journal_datalist_lock to protect the lists from
+	 * journal_try_to_free_buffers().
+	 */
+	spin_lock(&journal_datalist_lock);
+
+write_out_data_locked:
+	bufs = 0;
+	next_jh = commit_transaction->t_sync_datalist;
+	if (next_jh == NULL)
+		goto sync_datalist_empty;
+	last_jh = next_jh->b_tprev;
+
+	do {
+		struct buffer_head *bh;
+
+		jh = next_jh;
+		next_jh = jh->b_tnext;
+		bh = jh2bh(jh);
+		if (!buffer_locked(bh)) {
+			if (buffer_dirty(bh)) {
+				BUFFER_TRACE(bh, "start journal writeout");
+				atomic_inc(&bh->b_count);
+				wbuf[bufs++] = bh;
+			} else {
+				BUFFER_TRACE(bh, "writeout complete: unfile");
+				__journal_unfile_buffer(jh);
+				jh->b_transaction = NULL;
+				__journal_remove_journal_head(bh);
+				refile_buffer(bh);
+				release_buffer_page(bh);
+			}
+		}
+		if (bufs == ARRAY_SIZE(wbuf)) {
+			/*
+			 * Major speedup: start here on the next scan
+			 */
+			J_ASSERT(commit_transaction->t_sync_datalist != 0);
+			commit_transaction->t_sync_datalist = jh;
+			break;
+		}
+	} while (jh != last_jh);
+
+	if (bufs || current->need_resched) {
+		jbd_debug(2, "submit %d writes\n", bufs);
+		spin_unlock(&journal_datalist_lock);
+		unlock_journal(journal);
+		if (bufs)
+			ll_rw_block(WRITE, bufs, wbuf);
+		if (current->need_resched)
+			schedule();
+		journal_brelse_array(wbuf, bufs);
+		lock_journal(journal);
+		spin_lock(&journal_datalist_lock);
+		if (bufs)
+			goto write_out_data_locked;
+	}
+
+	/*
+	 * Wait for all previously submitted IO on the data list to complete.
+	 */
+	jh = commit_transaction->t_sync_datalist;
+	if (jh == NULL)
+		goto sync_datalist_empty;
+
+	do {
+		struct buffer_head *bh;
+		jh = jh->b_tprev;	/* Wait on the last written */
+		bh = jh2bh(jh);
+		if (buffer_locked(bh)) {
+			spin_unlock(&journal_datalist_lock);
+			unlock_journal(journal);
+			wait_on_buffer(bh);
+			/* the journal_head may have been removed now */
+			lock_journal(journal);
+			goto write_out_data;
+		} else if (buffer_dirty(bh)) {
+			goto write_out_data_locked;
+		}
+	} while (jh != commit_transaction->t_sync_datalist);
+	goto write_out_data_locked;
+
+sync_datalist_empty:
+	/*
+	 * Wait for all the async writepage data.  As they become unlocked
+	 * in end_buffer_io_async(), the only place where they can be
+	 * reaped is in try_to_free_buffers(), and we're locked against
+	 * that.
+	 */
+	while ((jh = commit_transaction->t_async_datalist)) {
+		struct buffer_head *bh = jh2bh(jh);
+		if (__buffer_state(bh, Freed)) {
+			BUFFER_TRACE(bh, "Cleaning freed buffer");
+			clear_bit(BH_Freed, &bh->b_state);
+			clear_bit(BH_Dirty, &bh->b_state);
+		}
+		if (buffer_locked(bh)) {
+			spin_unlock(&journal_datalist_lock);
+			unlock_journal(journal);
+			wait_on_buffer(bh);
+			lock_journal(journal);
+			spin_lock(&journal_datalist_lock);
+			continue;	/* List may have changed */
+		}
+		if (jh->b_next_transaction) {
+			/*
+			 * For writepage() buffers in journalled data mode: a
+			 * later transaction may want the buffer for "metadata"
+			 */
+			__journal_refile_buffer(jh);
+		} else {
+			BUFFER_TRACE(bh, "finished async writeout: unfile");
+			__journal_unfile_buffer(jh);
+			jh->b_transaction = NULL;
+			__journal_remove_journal_head(bh);
+			BUFFER_TRACE(bh, "finished async writeout: refile");
+			/* It can sometimes be on BUF_LOCKED due to migration
+			 * from syncdata to asyncdata */
+			if (bh->b_list != BUF_CLEAN)
+				refile_buffer(bh);
+			__brelse(bh);
+		}
+	}
+	spin_unlock(&journal_datalist_lock);
+
+	/*
+	 * If we found any dirty or locked buffers, then we should have
+	 * looped back up to the write_out_data label.  If there weren't
+	 * any then journal_clean_data_list should have wiped the list
+	 * clean by now, so check that it is in fact empty.
+	 */
+	J_ASSERT (commit_transaction->t_sync_datalist == NULL);
+	J_ASSERT (commit_transaction->t_async_datalist == NULL);
+
+	jbd_debug (3, "JBD: commit phase 3\n");
+
+	/*
+	 * Way to go: we have now written out all of the data for a
+	 * transaction!  Now comes the tricky part: we need to write out
+	 * metadata.  Loop over the transaction's entire buffer list:
+	 */
+	commit_transaction->t_state = T_COMMIT;
+
+	descriptor = 0;
+	bufs = 0;
+	while (commit_transaction->t_buffers) {
+
+		/* Find the next buffer to be journaled... */
+
+		jh = commit_transaction->t_buffers;
+
+		/* If we're in abort mode, we just un-journal the buffer and
+		   release it for background writing. */
+
+		if (is_journal_aborted(journal)) {
+			JBUFFER_TRACE(jh, "journal is aborting: refile");
+			journal_refile_buffer(jh);
+			/* If that was the last one, we need to clean up
+			 * any descriptor buffers which may have been
+			 * already allocated, even if we are now
+			 * aborting. */
+			if (!commit_transaction->t_buffers)
+				goto start_journal_io;
+			continue;
+		}
+
+		/* Make sure we have a descriptor block in which to
+		   record the metadata buffer. */
+
+		if (!descriptor) {
+			struct buffer_head *bh;
+
+			J_ASSERT (bufs == 0);
+
+			jbd_debug(4, "JBD: get descriptor\n");
+
+			descriptor = journal_get_descriptor_buffer(journal);
+			if (!descriptor) {
+				__journal_abort_hard(journal);
+				continue;
+			}
+			
+			bh = jh2bh(descriptor);
+			jbd_debug(4, "JBD: got buffer %ld (%p)\n",
+				bh->b_blocknr, bh->b_data);
+			header = (journal_header_t *)&bh->b_data[0];
+			header->h_magic     = htonl(JFS_MAGIC_NUMBER);
+			header->h_blocktype = htonl(JFS_DESCRIPTOR_BLOCK);
+			header->h_sequence  = htonl(commit_transaction->t_tid);
+
+			tagp = &bh->b_data[sizeof(journal_header_t)];
+			space_left = bh->b_size - sizeof(journal_header_t);
+			first_tag = 1;
+			set_bit(BH_JWrite, &bh->b_state);
+			wbuf[bufs++] = bh;
+
+			/* Record it so that we can wait for IO
+                           completion later */
+			BUFFER_TRACE(bh, "ph3: file as descriptor");
+			journal_file_buffer(descriptor, commit_transaction,
+						BJ_LogCtl);
+		}
+
+		/* Where is the buffer to be written? */
+
+		err = journal_next_log_block(journal, &blocknr);
+		/* If the block mapping failed, just abandon the buffer
+		   and repeat this loop: we'll fall into the
+		   refile-on-abort condition above. */
+		if (err) {
+			__journal_abort_hard(journal);
+			continue;
+		}
+
+		/* Bump b_count to prevent truncate from stumbling over
+                   the shadowed buffer!  @@@ This can go if we ever get
+                   rid of the BJ_IO/BJ_Shadow pairing of buffers. */
+		atomic_inc(&jh2bh(jh)->b_count);
+
+		/* Make a temporary IO buffer with which to write it out
+                   (this will requeue both the metadata buffer and the
+                   temporary IO buffer). new_bh goes on BJ_IO*/
+
+		set_bit(BH_JWrite, &jh2bh(jh)->b_state);
+		/*
+		 * akpm: journal_write_metadata_buffer() sets
+		 * new_bh->b_transaction to commit_transaction.
+		 * We need to clean this up before we release new_bh
+		 * (which is of type BJ_IO)
+		 */
+		JBUFFER_TRACE(jh, "ph3: write metadata");
+		flags = journal_write_metadata_buffer(commit_transaction,
+						      jh, &new_jh, blocknr);
+		set_bit(BH_JWrite, &jh2bh(new_jh)->b_state);
+		set_bit(BH_Lock, &jh2bh(new_jh)->b_state);
+		wbuf[bufs++] = jh2bh(new_jh);
+
+		/* Record the new block's tag in the current descriptor
+                   buffer */
+
+		tag_flag = 0;
+		if (flags & 1)
+			tag_flag |= JFS_FLAG_ESCAPE;
+		if (!first_tag)
+			tag_flag |= JFS_FLAG_SAME_UUID;
+
+		tag = (journal_block_tag_t *) tagp;
+		tag->t_blocknr = htonl(jh2bh(jh)->b_blocknr);
+		tag->t_flags = htonl(tag_flag);
+		tagp += sizeof(journal_block_tag_t);
+		space_left -= sizeof(journal_block_tag_t);
+
+		if (first_tag) {
+			memcpy (tagp, journal->j_uuid, 16);
+			tagp += 16;
+			space_left -= 16;
+			first_tag = 0;
+		}
+
+		/* If there's no more to do, or if the descriptor is full,
+		   let the IO rip! */
+
+		if (bufs == ARRAY_SIZE(wbuf) ||
+		    commit_transaction->t_buffers == NULL ||
+		    space_left < sizeof(journal_block_tag_t) + 16) {
+
+			jbd_debug(4, "JBD: Submit %d IOs\n", bufs);
+
+			/* Write an end-of-descriptor marker before
+                           submitting the IOs.  "tag" still points to
+                           the last tag we set up. */
+
+			tag->t_flags |= htonl(JFS_FLAG_LAST_TAG);
+
+start_journal_io:
+			unlock_journal(journal);
+			for (i=0; i<bufs; i++) {
+				struct buffer_head *bh = wbuf[i];
+				clear_bit(BH_Dirty, &bh->b_state);
+				bh->b_end_io = journal_end_buffer_io_sync;
+				submit_bh(WRITE, bh);
+			}
+			if (current->need_resched)
+				schedule();
+			lock_journal(journal);
+
+			/* Force a new descriptor to be generated next
+                           time round the loop. */
+			descriptor = NULL;
+			bufs = 0;
+		}
+	}
+
+	/* Lo and behold: we have just managed to send a transaction to
+           the log.  Before we can commit it, wait for the IO so far to
+           complete.  Control buffers being written are on the
+           transaction's t_log_list queue, and metadata buffers are on
+           the t_iobuf_list queue.
+
+	   Wait for the buffers in reverse order.  That way we are
+	   less likely to be woken up until all IOs have completed, and
+	   so we incur less scheduling load.
+	*/
+
+	jbd_debug(3, "JBD: commit phase 4\n");
+
+	/* akpm: these are BJ_IO, and journal_datalist_lock is not needed */
+ wait_for_iobuf:
+	while (commit_transaction->t_iobuf_list != NULL) {
+		struct buffer_head *bh;
+		jh = commit_transaction->t_iobuf_list->b_tprev;
+		bh = jh2bh(jh);
+		if (buffer_locked(bh)) {
+			unlock_journal(journal);
+			wait_on_buffer(bh);
+			lock_journal(journal);
+			goto wait_for_iobuf;
+		}
+
+		clear_bit(BH_JWrite, &jh2bh(jh)->b_state);
+
+		JBUFFER_TRACE(jh, "ph4: unfile after journal write");
+		journal_unfile_buffer(jh);
+
+		/*
+		 * akpm: don't put back a buffer_head with stale pointers
+		 * dangling around.
+		 */
+		J_ASSERT_JH(jh, jh->b_transaction != NULL);
+		jh->b_transaction = NULL;
+
+		/*
+		 * ->t_iobuf_list should contain only dummy buffer_heads
+		 * which were created by journal_write_metadata_buffer().
+		 */
+		bh = jh2bh(jh);
+		BUFFER_TRACE(bh, "dumping temporary bh");
+		journal_unlock_journal_head(jh);
+		__brelse(bh);
+		J_ASSERT_BH(bh, atomic_read(&bh->b_count) == 0);
+		put_unused_buffer_head(bh);
+
+		/* We also have to unlock and free the corresponding
+                   shadowed buffer */
+		jh = commit_transaction->t_shadow_list->b_tprev;
+		bh = jh2bh(jh);
+		clear_bit(BH_JWrite, &bh->b_state);
+		J_ASSERT_BH(bh, buffer_jdirty(bh));
+
+		/* The metadata is now released for reuse, but we need
+                   to remember it against this transaction so that when
+                   we finally commit, we can do any checkpointing
+                   required. */
+		JBUFFER_TRACE(jh, "file as BJ_Forget");
+		journal_file_buffer(jh, commit_transaction, BJ_Forget);
+		/* Wake up any transactions which were waiting for this
+		   IO to complete */
+		wake_up(&bh->b_wait);
+		JBUFFER_TRACE(jh, "brelse shadowed buffer");
+		__brelse(bh);
+	}
+
+	J_ASSERT (commit_transaction->t_shadow_list == NULL);
+
+	jbd_debug(3, "JBD: commit phase 5\n");
+
+	/* Here we wait for the revoke record and descriptor record buffers */
+ wait_for_ctlbuf:
+	while (commit_transaction->t_log_list != NULL) {
+		struct buffer_head *bh;
+
+		jh = commit_transaction->t_log_list->b_tprev;
+		bh = jh2bh(jh);
+		if (buffer_locked(bh)) {
+			unlock_journal(journal);
+			wait_on_buffer(bh);
+			lock_journal(journal);
+			goto wait_for_ctlbuf;
+		}
+
+		BUFFER_TRACE(bh, "ph5: control buffer writeout done: unfile");
+		clear_bit(BH_JWrite, &bh->b_state);
+		journal_unfile_buffer(jh);
+		jh->b_transaction = NULL;
+		journal_unlock_journal_head(jh);
+		put_bh(bh);			/* One for getblk */
+	}
+
+	jbd_debug(3, "JBD: commit phase 6\n");
+
+	if (is_journal_aborted(journal)) {
+		unlock_journal(journal);
+		goto skip_commit;
+	}
+
+	/* Done it all: now write the commit record.  We should have
+	 * cleaned up our previous buffers by now, so if we are in abort
+	 * mode we can now just skip the rest of the journal write
+	 * entirely. */
+
+	descriptor = journal_get_descriptor_buffer(journal);
+	if (!descriptor) {
+		__journal_abort_hard(journal);
+		unlock_journal(journal);
+		goto skip_commit;
+	}
+
+	/* AKPM: buglet - add `i' to tmp! */
+	for (i = 0; i < jh2bh(descriptor)->b_size; i += 512) {
+		journal_header_t *tmp =
+			(journal_header_t*)jh2bh(descriptor)->b_data;
+		tmp->h_magic = htonl(JFS_MAGIC_NUMBER);
+		tmp->h_blocktype = htonl(JFS_COMMIT_BLOCK);
+		tmp->h_sequence = htonl(commit_transaction->t_tid);
+	}
+
+	unlock_journal(journal);
+	JBUFFER_TRACE(descriptor, "write commit block");
+	{
+		struct buffer_head *bh = jh2bh(descriptor);
+		clear_bit(BH_Dirty, &bh->b_state);
+		bh->b_end_io = journal_end_buffer_io_sync;
+		submit_bh(WRITE, bh);
+		wait_on_buffer(bh);
+		put_bh(bh);		/* One for getblk() */
+		journal_unlock_journal_head(descriptor);
+	}
+
+	/* End of a transaction!  Finally, we can do checkpoint
+           processing: any buffers committed as a result of this
+           transaction can be removed from any checkpoint list it was on
+           before. */
+
+skip_commit: /* The journal should be unlocked by now. */
+
+	/* Call any callbacks that had been registered for handles in this
+	 * transaction.  It is up to the callback to free any allocated
+	 * memory.
+	 */
+	if (!list_empty(&commit_transaction->t_jcb)) {
+		struct list_head *p, *n;
+		int error = is_journal_aborted(journal);
+
+		list_for_each_safe(p, n, &commit_transaction->t_jcb) {
+			struct journal_callback *jcb;
+
+			jcb = list_entry(p, struct journal_callback, jcb_list);
+			list_del(p);
+			jcb->jcb_func(jcb, error);
+		}
+	}
+
+	lock_journal(journal);
+
+	jbd_debug(3, "JBD: commit phase 7\n");
+
+	J_ASSERT(commit_transaction->t_sync_datalist == NULL);
+	J_ASSERT(commit_transaction->t_async_datalist == NULL);
+	J_ASSERT(commit_transaction->t_buffers == NULL);
+	J_ASSERT(commit_transaction->t_checkpoint_list == NULL);
+	J_ASSERT(commit_transaction->t_iobuf_list == NULL);
+	J_ASSERT(commit_transaction->t_shadow_list == NULL);
+	J_ASSERT(commit_transaction->t_log_list == NULL);
+
+	while (commit_transaction->t_forget) {
+		transaction_t *cp_transaction;
+		struct buffer_head *bh;
+		int was_freed = 0;
+		
+		jh = commit_transaction->t_forget;
+		J_ASSERT_JH(jh,	jh->b_transaction == commit_transaction ||
+			jh->b_transaction == journal->j_running_transaction);
+
+		/*
+		 * If there is undo-protected committed data against
+		 * this buffer, then we can remove it now.  If it is a
+		 * buffer needing such protection, the old frozen_data
+		 * field now points to a committed version of the
+		 * buffer, so rotate that field to the new committed
+		 * data.
+		 *
+		 * Otherwise, we can just throw away the frozen data now.
+		 */
+		if (jh->b_committed_data) {
+			kfree(jh->b_committed_data);
+			jh->b_committed_data = NULL;
+			if (jh->b_frozen_data) {
+				jh->b_committed_data = jh->b_frozen_data;
+				jh->b_frozen_data = NULL;
+			}
+		} else if (jh->b_frozen_data) {
+			kfree(jh->b_frozen_data);
+			jh->b_frozen_data = NULL;
+		}
+
+		spin_lock(&journal_datalist_lock);
+		cp_transaction = jh->b_cp_transaction;
+		if (cp_transaction) {
+			JBUFFER_TRACE(jh, "remove from old cp transaction");
+			J_ASSERT_JH(jh, commit_transaction != cp_transaction);
+			__journal_remove_checkpoint(jh);
+		}
+
+		/* Only re-checkpoint the buffer_head if it is marked
+		 * dirty.  If the buffer was added to the BJ_Forget list
+		 * by journal_forget, it may no longer be dirty and
+		 * there's no point in keeping a checkpoint record for
+		 * it. */
+		bh = jh2bh(jh);
+
+		/* A buffer which has been freed while still being
+		 * journaled by a previous transaction may end up still
+		 * being dirty here, but we want to avoid writing back
+		 * that buffer in the future now that the last use has
+		 * been committed.  That's not only a performance gain,
+		 * it also stops aliasing problems if the buffer is left
+		 * behind for writeback and gets reallocated for another
+		 * use in a different page. */
+		if (__buffer_state(bh, Freed)) {
+			was_freed = 1;
+			clear_bit(BH_Freed, &bh->b_state);
+			clear_bit(BH_JBDDirty, &bh->b_state);
+		}
+			
+		if (buffer_jdirty(bh)) {
+			JBUFFER_TRACE(jh, "add to new checkpointing trans");
+			__journal_insert_checkpoint(jh, commit_transaction);
+			JBUFFER_TRACE(jh, "refile for checkpoint writeback");
+			__journal_refile_buffer(jh);
+		} else {
+			J_ASSERT_BH(bh, !buffer_dirty(bh));
+			J_ASSERT_JH(jh, jh->b_next_transaction == NULL);
+			__journal_unfile_buffer(jh);
+			jh->b_transaction = 0;
+			__journal_remove_journal_head(bh);
+			spin_unlock(&journal_datalist_lock);
+			if (was_freed)
+				release_buffer_page(bh);
+			else
+				__brelse(bh);
+			continue;
+		}
+		spin_unlock(&journal_datalist_lock);
+	}
+
+	/* Done with this transaction! */
+
+	jbd_debug(3, "JBD: commit phase 8\n");
+
+	J_ASSERT (commit_transaction->t_state == T_COMMIT);
+	commit_transaction->t_state = T_FINISHED;
+
+	J_ASSERT (commit_transaction == journal->j_committing_transaction);
+	journal->j_commit_sequence = commit_transaction->t_tid;
+	journal->j_committing_transaction = NULL;
+
+	spin_lock(&journal_datalist_lock);
+	if (commit_transaction->t_checkpoint_list == NULL) {
+		__journal_drop_transaction(journal, commit_transaction);
+	} else {
+		if (journal->j_checkpoint_transactions == NULL) {
+			journal->j_checkpoint_transactions = commit_transaction;
+			commit_transaction->t_cpnext = commit_transaction;
+			commit_transaction->t_cpprev = commit_transaction;
+		} else {
+			commit_transaction->t_cpnext =
+				journal->j_checkpoint_transactions;
+			commit_transaction->t_cpprev =
+				commit_transaction->t_cpnext->t_cpprev;
+			commit_transaction->t_cpnext->t_cpprev =
+				commit_transaction;
+			commit_transaction->t_cpprev->t_cpnext =
+				commit_transaction;
+		}
+	}
+	spin_unlock(&journal_datalist_lock);
+
+	jbd_debug(1, "JBD: commit %d complete, head %d\n",
+		  journal->j_commit_sequence, journal->j_tail_sequence);
+
+	unlock_journal(journal);
+	wake_up(&journal->j_wait_done_commit);
+}
diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c
new file mode 100644
index 00000000000000..f57e6b09a88380
--- /dev/null
+++ b/fs/jbd/journal.c
@@ -0,0 +1,2000 @@
+/*
+ * linux/fs/journal.c
+ *
+ * Written by Stephen C. Tweedie <sct@redhat.com>, 1998
+ *
+ * Copyright 1998 Red Hat corp --- All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * Generic filesystem journal-writing code; part of the ext2fs
+ * journaling system.
+ *
+ * This file manages journals: areas of disk reserved for logging
+ * transactional updates.  This includes the kernel journaling thread
+ * which is responsible for scheduling updates to the log.
+ *
+ * We do not actually manage the physical storage of the journal in this
+ * file: that is left to a per-journal policy function, which allows us
+ * to store the journal within a filesystem-specified area for ext2
+ * journaling (ext2 can use a reserved inode for storing the log).
+ */
+
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/jbd.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/locks.h>
+#include <linux/smp_lock.h>
+#include <linux/sched.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <asm/uaccess.h>
+#include <linux/proc_fs.h>
+
+EXPORT_SYMBOL(journal_start);
+EXPORT_SYMBOL(journal_try_start);
+EXPORT_SYMBOL(journal_restart);
+EXPORT_SYMBOL(journal_extend);
+EXPORT_SYMBOL(journal_stop);
+EXPORT_SYMBOL(journal_lock_updates);
+EXPORT_SYMBOL(journal_unlock_updates);
+EXPORT_SYMBOL(journal_get_write_access);
+EXPORT_SYMBOL(journal_get_create_access);
+EXPORT_SYMBOL(journal_get_undo_access);
+EXPORT_SYMBOL(journal_dirty_data);
+EXPORT_SYMBOL(journal_dirty_metadata);
+#if 0
+EXPORT_SYMBOL(journal_release_buffer);
+#endif
+EXPORT_SYMBOL(journal_forget);
+#if 0
+EXPORT_SYMBOL(journal_sync_buffer);
+#endif
+EXPORT_SYMBOL(journal_flush);
+EXPORT_SYMBOL(journal_revoke);
+EXPORT_SYMBOL(journal_callback_set);
+
+EXPORT_SYMBOL(journal_init_dev);
+EXPORT_SYMBOL(journal_init_inode);
+EXPORT_SYMBOL(journal_update_format);
+EXPORT_SYMBOL(journal_check_used_features);
+EXPORT_SYMBOL(journal_check_available_features);
+EXPORT_SYMBOL(journal_set_features);
+EXPORT_SYMBOL(journal_create);
+EXPORT_SYMBOL(journal_load);
+EXPORT_SYMBOL(journal_destroy);
+EXPORT_SYMBOL(journal_recover);
+EXPORT_SYMBOL(journal_update_superblock);
+EXPORT_SYMBOL(journal_abort);
+EXPORT_SYMBOL(journal_errno);
+EXPORT_SYMBOL(journal_ack_err);
+EXPORT_SYMBOL(journal_clear_err);
+EXPORT_SYMBOL(log_wait_commit);
+EXPORT_SYMBOL(log_start_commit);
+EXPORT_SYMBOL(journal_wipe);
+EXPORT_SYMBOL(journal_blocks_per_page);
+EXPORT_SYMBOL(journal_flushpage);
+EXPORT_SYMBOL(journal_try_to_free_buffers);
+EXPORT_SYMBOL(journal_bmap);
+EXPORT_SYMBOL(journal_force_commit);
+
+static int journal_convert_superblock_v1(journal_t *, journal_superblock_t *);
+
+/*
+ * journal_datalist_lock is used to protect data buffers:
+ *
+ *	bh->b_transaction
+ *	bh->b_tprev
+ *	bh->b_tnext
+ *
+ * journal_free_buffer() is called from journal_try_to_free_buffer(), and is
+ * async wrt everything else.
+ *
+ * It is also used for checkpoint data, also to protect against
+ * journal_try_to_free_buffer():
+ *
+ *	bh->b_cp_transaction
+ *	bh->b_cpnext
+ *	bh->b_cpprev
+ *	transaction->t_checkpoint_list
+ *	transaction->t_cpnext
+ *	transaction->t_cpprev
+ *	journal->j_checkpoint_transactions
+ *
+ * It is global at this time rather than per-journal because it's
+ * impossible for __journal_free_buffer to go from a buffer_head
+ * back to a journal_t unracily (well, not true.  Fix later)
+ *
+ *
+ * The `datalist' and `checkpoint list' functions are quite
+ * separate and we could use two spinlocks here.
+ *
+ * lru_list_lock nests inside journal_datalist_lock.
+ */
+spinlock_t journal_datalist_lock = SPIN_LOCK_UNLOCKED;
+
+/*
+ * jh_splice_lock needs explantion.
+ *
+ * In a number of places we want to do things like:
+ *
+ *	if (buffer_jbd(bh) && bh2jh(bh)->foo)
+ *
+ * This is racy on SMP, because another CPU could remove the journal_head
+ * in the middle of this expression.  We need locking.
+ *
+ * But we can greatly optimise the locking cost by testing BH_JBD
+ * outside the lock.  So, effectively:
+ *
+ *	ret = 0;
+ *	if (buffer_jbd(bh)) {
+ *		spin_lock(&jh_splice_lock);
+ *		if (buffer_jbd(bh)) {	 (* Still there? *)
+ *			ret = bh2jh(bh)->foo;
+ *		}
+ *		spin_unlock(&jh_splice_lock);
+ *	}
+ *	return ret;
+ *
+ * Now, that protects us from races where another CPU can remove the
+ * journal_head.  But it doesn't defend us from the situation where another
+ * CPU can *add* a journal_head.  This is a correctness issue.  But it's not
+ * a problem because a) the calling code was *already* racy and b) it often
+ * can't happen at the call site and c) the places where we add journal_heads
+ * tend to be under external locking.
+ */
+spinlock_t jh_splice_lock = SPIN_LOCK_UNLOCKED;
+
+/*
+ * List of all journals in the system.  Protected by the BKL.
+ */
+static LIST_HEAD(all_journals);
+
+/*
+ * Helper function used to manage commit timeouts
+ */
+
+static void commit_timeout(unsigned long __data)
+{
+	struct task_struct * p = (struct task_struct *) __data;
+
+	wake_up_process(p);
+}
+
+/* Static check for data structure consistency.  There's no code
+ * invoked --- we'll just get a linker failure if things aren't right.
+ */
+void __journal_internal_check(void)
+{
+	extern void journal_bad_superblock_size(void);
+	if (sizeof(struct journal_superblock_s) != 1024)
+		journal_bad_superblock_size();
+}
+
+/*
+ * kjournald: The main thread function used to manage a logging device
+ * journal.
+ *
+ * This kernel thread is responsible for two things:
+ *
+ * 1) COMMIT:  Every so often we need to commit the current state of the
+ *    filesystem to disk.  The journal thread is responsible for writing
+ *    all of the metadata buffers to disk.
+ *
+ * 2) CHECKPOINT: We cannot reuse a used section of the log file until all
+ *    of the data in that part of the log has been rewritten elsewhere on
+ *    the disk.  Flushing these old buffers to reclaim space in the log is
+ *    known as checkpointing, and this thread is responsible for that job.
+ */
+
+journal_t *current_journal;		// AKPM: debug
+
+int kjournald(void *arg)
+{
+	journal_t *journal = (journal_t *) arg;
+	transaction_t *transaction;
+	struct timer_list timer;
+
+	current_journal = journal;
+
+	lock_kernel();
+	daemonize();
+	reparent_to_init();
+	spin_lock_irq(&current->sigmask_lock);
+	sigfillset(&current->blocked);
+	recalc_sigpending(current);
+	spin_unlock_irq(&current->sigmask_lock);
+
+	sprintf(current->comm, "kjournald");
+
+	/* Set up an interval timer which can be used to trigger a
+           commit wakeup after the commit interval expires */
+	init_timer(&timer);
+	timer.data = (unsigned long) current;
+	timer.function = commit_timeout;
+	journal->j_commit_timer = &timer;
+
+	/* Record that the journal thread is running */
+	journal->j_task = current;
+	wake_up(&journal->j_wait_done_commit);
+
+	printk(KERN_INFO "kjournald starting.  Commit interval %ld seconds\n",
+			journal->j_commit_interval / HZ);
+	list_add(&journal->j_all_journals, &all_journals);
+
+	/* And now, wait forever for commit wakeup events. */
+	while (1) {
+		if (journal->j_flags & JFS_UNMOUNT)
+			break;
+
+		jbd_debug(1, "commit_sequence=%d, commit_request=%d\n",
+			journal->j_commit_sequence, journal->j_commit_request);
+
+		if (journal->j_commit_sequence != journal->j_commit_request) {
+			jbd_debug(1, "OK, requests differ\n");
+			if (journal->j_commit_timer_active) {
+				journal->j_commit_timer_active = 0;
+				del_timer(journal->j_commit_timer);
+			}
+
+			journal_commit_transaction(journal);
+			continue;
+		}
+
+		wake_up(&journal->j_wait_done_commit);
+		interruptible_sleep_on(&journal->j_wait_commit);
+
+		jbd_debug(1, "kjournald wakes\n");
+
+		/* Were we woken up by a commit wakeup event? */
+		if ((transaction = journal->j_running_transaction) != NULL &&
+		    journal->j_commit_interval &&
+		    time_after_eq(jiffies, transaction->t_expires)) {
+			journal->j_commit_request = transaction->t_tid;
+			jbd_debug(1, "woke because of timeout\n");
+		}
+	}
+
+	if (journal->j_commit_timer_active) {
+		journal->j_commit_timer_active = 0;
+		del_timer_sync(journal->j_commit_timer);
+	}
+
+	list_del(&journal->j_all_journals);
+
+	journal->j_task = NULL;
+	wake_up(&journal->j_wait_done_commit);
+	unlock_kernel();
+	jbd_debug(1, "Journal thread exiting.\n");
+	return 0;
+}
+
+static void journal_start_thread(journal_t *journal)
+{
+	kernel_thread(kjournald, (void *) journal,
+		      CLONE_VM | CLONE_FS | CLONE_FILES);
+	while (!journal->j_task)
+		sleep_on(&journal->j_wait_done_commit);
+}
+
+static void journal_kill_thread(journal_t *journal)
+{
+	journal->j_flags |= JFS_UNMOUNT;
+
+	while (journal->j_task) {
+		wake_up(&journal->j_wait_commit);
+		sleep_on(&journal->j_wait_done_commit);
+	}
+}
+
+#if 0
+
+This is no longer needed - we do it in commit quite efficiently.
+Note that if this function is resurrected, the loop needs to
+be reorganised into the next_jh/last_jh algorithm.
+
+/*
+ * journal_clean_data_list: cleanup after data IO.
+ *
+ * Once the IO system has finished writing the buffers on the transaction's
+ * data list, we can remove those buffers from the list.  This function
+ * scans the list for such buffers and removes them cleanly.
+ *
+ * We assume that the journal is already locked.
+ * We are called with journal_datalist_lock held.
+ *
+ * AKPM: This function looks inefficient.  Approximately O(n^2)
+ * for potentially thousands of buffers.  It no longer shows on profiles
+ * because these buffers are mainly dropped in journal_commit_transaction().
+ */
+
+void __journal_clean_data_list(transaction_t *transaction)
+{
+	struct journal_head *jh, *next;
+
+	assert_spin_locked(&journal_datalist_lock);
+
+restart:
+	jh = transaction->t_sync_datalist;
+	if (!jh)
+		goto out;
+	do {
+		next = jh->b_tnext;
+		if (!buffer_locked(jh2bh(jh)) && !buffer_dirty(jh2bh(jh))) {
+			struct buffer_head *bh = jh2bh(jh);
+			BUFFER_TRACE(bh, "data writeout complete: unfile");
+			__journal_unfile_buffer(jh);
+			jh->b_transaction = NULL;
+			__journal_remove_journal_head(bh);
+			refile_buffer(bh);
+			__brelse(bh);
+			goto restart;
+		}
+		jh = next;
+	} while (transaction->t_sync_datalist &&
+			jh != transaction->t_sync_datalist);
+out:
+	return;
+}
+#endif
+
+/*
+ * journal_write_metadata_buffer: write a metadata buffer to the journal.
+ *
+ * Writes a metadata buffer to a given disk block.  The actual IO is not
+ * performed but a new buffer_head is constructed which labels the data
+ * to be written with the correct destination disk block.
+ *
+ * Any magic-number escaping which needs to be done will cause a
+ * copy-out here.  If the buffer happens to start with the
+ * JFS_MAGIC_NUMBER, then we can't write it to the log directly: the
+ * magic number is only written to the log for descripter blocks.  In
+ * this case, we copy the data and replace the first word with 0, and we
+ * return a result code which indicates that this buffer needs to be
+ * marked as an escaped buffer in the corresponding log descriptor
+ * block.  The missing word can then be restored when the block is read
+ * during recovery.
+ *
+ * If the source buffer has already been modified by a new transaction
+ * since we took the last commit snapshot, we use the frozen copy of
+ * that data for IO.  If we end up using the existing buffer_head's data
+ * for the write, then we *have* to lock the buffer to prevent anyone
+ * else from using and possibly modifying it while the IO is in
+ * progress.
+ *
+ * The function returns a pointer to the buffer_heads to be used for IO.
+ *
+ * We assume that the journal has already been locked in this function.
+ *
+ * Return value:
+ *  <0: Error
+ * >=0: Finished OK
+ *
+ * On success:
+ * Bit 0 set == escape performed on the data
+ * Bit 1 set == buffer copy-out performed (kfree the data after IO)
+ */
+
+static inline unsigned long virt_to_offset(void *p) 
+{return ((unsigned long) p) & ~PAGE_MASK;}
+					       
+int journal_write_metadata_buffer(transaction_t *transaction,
+				  struct journal_head  *jh_in,
+				  struct journal_head **jh_out,
+				  int blocknr)
+{
+	int need_copy_out = 0;
+	int done_copy_out = 0;
+	int do_escape = 0;
+	char *mapped_data;
+	struct buffer_head *new_bh;
+	struct journal_head * new_jh;
+	struct page *new_page;
+	unsigned int new_offset;
+
+	/*
+	 * The buffer really shouldn't be locked: only the current committing
+	 * transaction is allowed to write it, so nobody else is allowed
+	 * to do any IO.
+	 *
+	 * akpm: except if we're journalling data, and write() output is
+	 * also part of a shared mapping, and another thread has
+	 * decided to launch a writepage() against this buffer.
+	 */
+	J_ASSERT_JH(jh_in, buffer_jdirty(jh2bh(jh_in)));
+
+	/*
+	 * If a new transaction has already done a buffer copy-out, then
+	 * we use that version of the data for the commit.
+	 */
+
+	if (jh_in->b_frozen_data) {
+		done_copy_out = 1;
+		new_page = virt_to_page(jh_in->b_frozen_data);
+		new_offset = virt_to_offset(jh_in->b_frozen_data);
+	} else {
+		new_page = jh2bh(jh_in)->b_page;
+		new_offset = virt_to_offset(jh2bh(jh_in)->b_data);
+	}
+
+	mapped_data = ((char *) kmap(new_page)) + new_offset;
+
+	/*
+	 * Check for escaping
+	 */
+	if (* ((unsigned int *) mapped_data) == htonl(JFS_MAGIC_NUMBER)) {
+		need_copy_out = 1;
+		do_escape = 1;
+	}
+
+	/*
+	 * Do we need to do a data copy?
+	 */
+
+	if (need_copy_out && !done_copy_out) {
+		char *tmp;
+		tmp = jbd_rep_kmalloc(jh2bh(jh_in)->b_size, GFP_NOFS);
+
+		jh_in->b_frozen_data = tmp;
+		memcpy (tmp, mapped_data, jh2bh(jh_in)->b_size);
+		
+		/* If we get to this path, we'll always need the new
+		   address kmapped so that we can clear the escaped
+		   magic number below. */
+		kunmap(new_page);
+		new_page = virt_to_page(tmp);
+		new_offset = virt_to_offset(tmp);
+		mapped_data = ((char *) kmap(new_page)) + new_offset;
+		
+		done_copy_out = 1;
+	}
+
+	/*
+	 * Right, time to make up the new buffer_head.
+	 */
+	do {
+		new_bh = get_unused_buffer_head(0);
+		if (!new_bh) {
+			printk (KERN_NOTICE "%s: ENOMEM at "
+				"get_unused_buffer_head, trying again.\n",
+				__FUNCTION__);
+			yield();
+		}
+	} while (!new_bh);
+	/* keep subsequent assertions sane */
+	new_bh->b_prev_free = 0;
+	new_bh->b_next_free = 0;
+	new_bh->b_state = 0;
+	init_buffer(new_bh, NULL, NULL);
+	atomic_set(&new_bh->b_count, 1);
+	new_jh = journal_add_journal_head(new_bh);
+
+	set_bh_page(new_bh, new_page, new_offset);
+
+	new_jh->b_transaction = NULL;
+	new_bh->b_size = jh2bh(jh_in)->b_size;
+	new_bh->b_dev = transaction->t_journal->j_dev;
+	new_bh->b_blocknr = blocknr;
+	new_bh->b_state |= (1 << BH_Mapped) | (1 << BH_Dirty);
+
+	*jh_out = new_jh;
+
+	/*
+	 * Did we need to do an escaping?  Now we've done all the
+	 * copying, we can finally do so.
+	 */
+
+	if (do_escape)
+		* ((unsigned int *) mapped_data) = 0;
+	kunmap(new_page);
+	
+	/*
+	 * The to-be-written buffer needs to get moved to the io queue,
+	 * and the original buffer whose contents we are shadowing or
+	 * copying is moved to the transaction's shadow queue.
+	 */
+	JBUFFER_TRACE(jh_in, "file as BJ_Shadow");
+	journal_file_buffer(jh_in, transaction, BJ_Shadow);
+	JBUFFER_TRACE(new_jh, "file as BJ_IO");
+	journal_file_buffer(new_jh, transaction, BJ_IO);
+
+	return do_escape | (done_copy_out << 1);
+}
+
+/*
+ * Allocation code for the journal file.  Manage the space left in the
+ * journal, so that we can begin checkpointing when appropriate.
+ */
+
+/*
+ * log_space_left: Return the number of free blocks left in the journal.
+ *
+ * Called with the journal already locked.
+ */
+
+int log_space_left (journal_t *journal)
+{
+	int left = journal->j_free;
+
+	/* Be pessimistic here about the number of those free blocks
+	 * which might be required for log descriptor control blocks. */
+
+#define MIN_LOG_RESERVED_BLOCKS 32 /* Allow for rounding errors */
+
+	left -= MIN_LOG_RESERVED_BLOCKS;
+
+	if (left <= 0)
+		return 0;
+	left -= (left >> 3);
+	return left;
+}
+
+/*
+ * This function must be non-allocating for PF_MEMALLOC tasks
+ */
+tid_t log_start_commit (journal_t *journal, transaction_t *transaction)
+{
+	tid_t target = journal->j_commit_request;
+
+	lock_kernel(); /* Protect journal->j_running_transaction */
+	
+	/*
+	 * A NULL transaction asks us to commit the currently running
+	 * transaction, if there is one.  
+	 */
+	if (transaction)
+		target = transaction->t_tid;
+	else {
+		transaction = journal->j_running_transaction;
+		if (!transaction)
+			goto out;
+		target = transaction->t_tid;
+	}
+		
+	/*
+	 * Are we already doing a recent enough commit?
+	 */
+	if (tid_geq(journal->j_commit_request, target))
+		goto out;
+
+	/*
+	 * We want a new commit: OK, mark the request and wakup the
+	 * commit thread.  We do _not_ do the commit ourselves.
+	 */
+
+	journal->j_commit_request = target;
+	jbd_debug(1, "JBD: requesting commit %d/%d\n",
+		  journal->j_commit_request,
+		  journal->j_commit_sequence);
+	wake_up(&journal->j_wait_commit);
+
+out:
+	unlock_kernel();
+	return target;
+}
+
+/*
+ * Wait for a specified commit to complete.
+ * The caller may not hold the journal lock.
+ */
+void log_wait_commit (journal_t *journal, tid_t tid)
+{
+	lock_kernel();
+#ifdef CONFIG_JBD_DEBUG
+	lock_journal(journal);
+	if (!tid_geq(journal->j_commit_request, tid)) {
+		printk(KERN_EMERG "%s: error: j_commit_request=%d, tid=%d\n",
+			__FUNCTION__, journal->j_commit_request, tid);
+	}
+	unlock_journal(journal);
+#endif
+	while (tid_gt(tid, journal->j_commit_sequence)) {
+		jbd_debug(1, "JBD: want %d, j_commit_sequence=%d\n",
+				  tid, journal->j_commit_sequence);
+		wake_up(&journal->j_wait_commit);
+		sleep_on(&journal->j_wait_done_commit);
+	}
+	unlock_kernel();
+}
+
+/*
+ * Log buffer allocation routines:
+ */
+
+int journal_next_log_block(journal_t *journal, unsigned long *retp)
+{
+	unsigned long blocknr;
+
+	J_ASSERT(journal->j_free > 1);
+
+	blocknr = journal->j_head;
+	journal->j_head++;
+	journal->j_free--;
+	if (journal->j_head == journal->j_last)
+		journal->j_head = journal->j_first;
+	return journal_bmap(journal, blocknr, retp);
+}
+
+/*
+ * Conversion of logical to physical block numbers for the journal
+ *
+ * On external journals the journal blocks are identity-mapped, so
+ * this is a no-op.  If needed, we can use j_blk_offset - everything is
+ * ready.
+ */
+int journal_bmap(journal_t *journal, unsigned long blocknr, 
+		 unsigned long *retp)
+{
+	int err = 0;
+	unsigned long ret;
+
+	if (journal->j_inode) {
+		ret = bmap(journal->j_inode, blocknr);
+		if (ret)
+			*retp = ret;
+		else {
+			printk (KERN_ALERT "%s: journal block not found "
+				"at offset %lu on %s\n", __FUNCTION__,
+				blocknr, bdevname(journal->j_dev));
+			err = -EIO;
+			__journal_abort_soft(journal, err);
+		}
+	} else {
+		*retp = blocknr; /* +journal->j_blk_offset */
+	}
+	return err;
+}
+
+/*
+ * We play buffer_head aliasing tricks to write data/metadata blocks to
+ * the journal without copying their contents, but for journal
+ * descriptor blocks we do need to generate bona fide buffers.
+ *
+ * We return a jh whose bh is locked and ready to be populated.
+ */
+
+struct journal_head * journal_get_descriptor_buffer(journal_t *journal)
+{
+	struct buffer_head *bh;
+	unsigned long blocknr;
+	int err;
+
+	err = journal_next_log_block(journal, &blocknr);
+
+	if (err)
+		return NULL;
+
+	bh = getblk(journal->j_dev, blocknr, journal->j_blocksize);
+	lock_buffer(bh);
+	memset(bh->b_data, 0, journal->j_blocksize);
+	BUFFER_TRACE(bh, "return this buffer");
+	return journal_add_journal_head(bh);
+}
+
+/*
+ * Management for journal control blocks: functions to create and
+ * destroy journal_t structures, and to initialise and read existing
+ * journal blocks from disk.  */
+
+/* First: create and setup a journal_t object in memory.  We initialise
+ * very few fields yet: that has to wait until we have created the
+ * journal structures from from scratch, or loaded them from disk. */
+
+static journal_t * journal_init_common (void)
+{
+	journal_t *journal;
+	int err;
+
+	MOD_INC_USE_COUNT;
+
+	journal = jbd_kmalloc(sizeof(*journal), GFP_KERNEL);
+	if (!journal)
+		goto fail;
+	memset(journal, 0, sizeof(*journal));
+
+	init_waitqueue_head(&journal->j_wait_transaction_locked);
+	init_waitqueue_head(&journal->j_wait_logspace);
+	init_waitqueue_head(&journal->j_wait_done_commit);
+	init_waitqueue_head(&journal->j_wait_checkpoint);
+	init_waitqueue_head(&journal->j_wait_commit);
+	init_waitqueue_head(&journal->j_wait_updates);
+	init_MUTEX(&journal->j_barrier);
+	init_MUTEX(&journal->j_checkpoint_sem);
+	init_MUTEX(&journal->j_sem);
+
+	journal->j_commit_interval = get_buffer_flushtime();
+
+	/* The journal is marked for error until we succeed with recovery! */
+	journal->j_flags = JFS_ABORT;
+
+	/* Set up a default-sized revoke table for the new mount. */
+	err = journal_init_revoke(journal, JOURNAL_REVOKE_DEFAULT_HASH);
+	if (err) {
+		kfree(journal);
+		goto fail;
+	}
+	return journal;
+fail:
+	MOD_DEC_USE_COUNT;
+	return NULL;
+}
+
+/* journal_init_dev and journal_init_inode:
+ *
+ * Create a journal structure assigned some fixed set of disk blocks to
+ * the journal.  We don't actually touch those disk blocks yet, but we
+ * need to set up all of the mapping information to tell the journaling
+ * system where the journal blocks are.
+ *
+ */
+
+ /**
+  *  journal_t * journal_init_dev() - creates an initialises a journal structure
+  *  @kdev: Block device on which to create the journal
+  *  @fs_dev: Device which hold journalled filesystem for this journal.
+  *  @start: Block nr Start of journal.
+  *  @len:  Lenght of the journal in blocks.
+  *  @blocksize: blocksize of journalling device
+  *  @returns: a newly created journal_t *
+  *  
+  *  journal_init_dev creates a journal which maps a fixed contiguous
+  *  range of blocks on an arbitrary block device.
+  * 
+  */
+journal_t * journal_init_dev(kdev_t dev, kdev_t fs_dev,
+			int start, int len, int blocksize)
+{
+	journal_t *journal = journal_init_common();
+	struct buffer_head *bh;
+
+	if (!journal)
+		return NULL;
+
+	journal->j_dev = dev;
+	journal->j_fs_dev = fs_dev;
+	journal->j_blk_offset = start;
+	journal->j_maxlen = len;
+	journal->j_blocksize = blocksize;
+
+	bh = getblk(journal->j_dev, start, journal->j_blocksize);
+	J_ASSERT(bh != NULL);
+	journal->j_sb_buffer = bh;
+	journal->j_superblock = (journal_superblock_t *)bh->b_data;
+
+	return journal;
+}
+ 
+/** 
+ *  journal_t * journal_init_inode () - creates a journal which maps to a inode.
+ *  @inode: An inode to create the journal in
+ *  
+ * journal_init_inode creates a journal which maps an on-disk inode as
+ * the journal.  The inode must exist already, must support bmap() and
+ * must have all data blocks preallocated.
+ */
+journal_t * journal_init_inode (struct inode *inode)
+{
+	struct buffer_head *bh;
+	journal_t *journal = journal_init_common();
+	int err;
+	unsigned long blocknr;
+
+	if (!journal)
+		return NULL;
+
+	journal->j_dev = inode->i_dev;
+	journal->j_fs_dev = inode->i_dev;
+	journal->j_inode = inode;
+	jbd_debug(1,
+		  "journal %p: inode %s/%ld, size %Ld, bits %d, blksize %ld\n",
+		  journal, bdevname(inode->i_dev), inode->i_ino, 
+		  (long long) inode->i_size,
+		  inode->i_sb->s_blocksize_bits, inode->i_sb->s_blocksize);
+
+	journal->j_maxlen = inode->i_size >> inode->i_sb->s_blocksize_bits;
+	journal->j_blocksize = inode->i_sb->s_blocksize;
+
+	err = journal_bmap(journal, 0, &blocknr);
+	/* If that failed, give up */
+	if (err) {
+		printk(KERN_ERR "%s: Cannnot locate journal superblock\n",
+			__FUNCTION__);
+		kfree(journal);
+		return NULL;
+	}
+	
+	bh = getblk(journal->j_dev, blocknr, journal->j_blocksize);
+	J_ASSERT(bh != NULL);
+	journal->j_sb_buffer = bh;
+	journal->j_superblock = (journal_superblock_t *)bh->b_data;
+
+	return journal;
+}
+
+/* 
+ * If the journal init or create aborts, we need to mark the journal
+ * superblock as being NULL to prevent the journal destroy from writing
+ * back a bogus superblock. 
+ */
+static void journal_fail_superblock (journal_t *journal)
+{
+	struct buffer_head *bh = journal->j_sb_buffer;
+	brelse(bh);
+	journal->j_sb_buffer = NULL;
+}
+
+/*
+ * Given a journal_t structure, initialise the various fields for
+ * startup of a new journaling session.  We use this both when creating
+ * a journal, and after recovering an old journal to reset it for
+ * subsequent use.
+ */
+
+static int journal_reset (journal_t *journal)
+{
+	journal_superblock_t *sb = journal->j_superblock;
+	unsigned int first, last;
+
+	first = ntohl(sb->s_first);
+	last = ntohl(sb->s_maxlen);
+
+	journal->j_first = first;
+	journal->j_last = last;
+
+	journal->j_head = first;
+	journal->j_tail = first;
+	journal->j_free = last - first;
+
+	journal->j_tail_sequence = journal->j_transaction_sequence;
+	journal->j_commit_sequence = journal->j_transaction_sequence - 1;
+	journal->j_commit_request = journal->j_commit_sequence;
+
+	journal->j_max_transaction_buffers = journal->j_maxlen / 4;
+
+	/* Add the dynamic fields and write it to disk. */
+	journal_update_superblock(journal, 1);
+
+	lock_journal(journal);
+	journal_start_thread(journal);
+	unlock_journal(journal);
+
+	return 0;
+}
+
+/** 
+ * int journal_create() - Initialise the new journal file
+ * @journal: Journal to create. This structure must have been initialised
+ * 
+ * Given a journal_t structure which tells us which disk blocks we can
+ * use, create a new journal superblock and initialise all of the
+ * journal fields from scratch.  
+ **/
+int journal_create(journal_t *journal)
+{
+	unsigned long blocknr;
+	struct buffer_head *bh;
+	journal_superblock_t *sb;
+	int i, err;
+
+	if (journal->j_maxlen < JFS_MIN_JOURNAL_BLOCKS) {
+		printk (KERN_ERR "Journal length (%d blocks) too short.\n",
+			journal->j_maxlen);
+		journal_fail_superblock(journal);
+		return -EINVAL;
+	}
+
+	if (journal->j_inode == NULL) {
+		/*
+		 * We don't know what block to start at!
+		 */
+		printk(KERN_EMERG "%s: creation of journal on external "
+			"device!\n", __FUNCTION__);
+		BUG();
+	}
+
+	/* Zero out the entire journal on disk.  We cannot afford to
+	   have any blocks on disk beginning with JFS_MAGIC_NUMBER. */
+	jbd_debug(1, "JBD: Zeroing out journal blocks...\n");
+	for (i = 0; i < journal->j_maxlen; i++) {
+		err = journal_bmap(journal, i, &blocknr);
+		if (err)
+			return err;
+		bh = getblk(journal->j_dev, blocknr, journal->j_blocksize);
+		wait_on_buffer(bh);
+		memset (bh->b_data, 0, journal->j_blocksize);
+		BUFFER_TRACE(bh, "marking dirty");
+		mark_buffer_dirty(bh);
+		BUFFER_TRACE(bh, "marking uptodate");
+		mark_buffer_uptodate(bh, 1);
+		__brelse(bh);
+	}
+
+	fsync_no_super(journal->j_dev);
+	jbd_debug(1, "JBD: journal cleared.\n");
+
+	/* OK, fill in the initial static fields in the new superblock */
+	sb = journal->j_superblock;
+
+	sb->s_header.h_magic	 = htonl(JFS_MAGIC_NUMBER);
+	sb->s_header.h_blocktype = htonl(JFS_SUPERBLOCK_V2);
+
+	sb->s_blocksize	= htonl(journal->j_blocksize);
+	sb->s_maxlen	= htonl(journal->j_maxlen);
+	sb->s_first	= htonl(1);
+
+	journal->j_transaction_sequence = 1;
+
+	journal->j_flags &= ~JFS_ABORT;
+	journal->j_format_version = 2;
+
+	return journal_reset(journal);
+}
+
+/** 
+ * void journal_update_superblock() - Update journal sb on disk.
+ * @journal: The journal to update.
+ * @wait: Set to '0' if you don't want to wait for IO completion.
+ *
+ * Update a journal's dynamic superblock fields and write it to disk,
+ * optionally waiting for the IO to complete.
+ */
+void journal_update_superblock(journal_t *journal, int wait)
+{
+	journal_superblock_t *sb = journal->j_superblock;
+	struct buffer_head *bh = journal->j_sb_buffer;
+
+	jbd_debug(1,"JBD: updating superblock (start %ld, seq %d, errno %d)\n",
+		  journal->j_tail, journal->j_tail_sequence, journal->j_errno);
+
+	sb->s_sequence = htonl(journal->j_tail_sequence);
+	sb->s_start    = htonl(journal->j_tail);
+	sb->s_errno    = htonl(journal->j_errno);
+
+	BUFFER_TRACE(bh, "marking dirty");
+	mark_buffer_dirty(bh);
+	ll_rw_block(WRITE, 1, &bh);
+	if (wait)
+		wait_on_buffer(bh);
+
+	/* If we have just flushed the log (by marking s_start==0), then
+	 * any future commit will have to be careful to update the
+	 * superblock again to re-record the true start of the log. */
+
+	if (sb->s_start)
+		journal->j_flags &= ~JFS_FLUSHED;
+	else
+		journal->j_flags |= JFS_FLUSHED;
+}
+
+
+/*
+ * Read the superblock for a given journal, performing initial
+ * validation of the format.
+ */
+
+static int journal_get_superblock(journal_t *journal)
+{
+	struct buffer_head *bh;
+	journal_superblock_t *sb;
+	int err = -EIO;
+	
+	bh = journal->j_sb_buffer;
+
+	J_ASSERT(bh != NULL);
+	if (!buffer_uptodate(bh)) {
+		ll_rw_block(READ, 1, &bh);
+		wait_on_buffer(bh);
+		if (!buffer_uptodate(bh)) {
+			printk (KERN_ERR
+				"JBD: IO error reading journal superblock\n");
+			goto out;
+		}
+	}
+
+	sb = journal->j_superblock;
+
+	err = -EINVAL;
+	
+	if (sb->s_header.h_magic != htonl(JFS_MAGIC_NUMBER) ||
+	    sb->s_blocksize != htonl(journal->j_blocksize)) {
+		printk(KERN_WARNING "JBD: no valid journal superblock found\n");
+		goto out;
+	}
+
+	switch(ntohl(sb->s_header.h_blocktype)) {
+	case JFS_SUPERBLOCK_V1:
+		journal->j_format_version = 1;
+		break;
+	case JFS_SUPERBLOCK_V2:
+		journal->j_format_version = 2;
+		break;
+	default:
+		printk(KERN_WARNING "JBD: unrecognised superblock format ID\n");
+		goto out;
+	}
+
+	if (ntohl(sb->s_maxlen) < journal->j_maxlen)
+		journal->j_maxlen = ntohl(sb->s_maxlen);
+	else if (ntohl(sb->s_maxlen) > journal->j_maxlen) {
+		printk (KERN_WARNING "JBD: journal file too short\n");
+		goto out;
+	}
+
+	return 0;
+
+out:
+	journal_fail_superblock(journal);
+	return err;
+}
+
+/*
+ * Load the on-disk journal superblock and read the key fields into the
+ * journal_t.
+ */
+
+static int load_superblock(journal_t *journal)
+{
+	int err;
+	journal_superblock_t *sb;
+
+	err = journal_get_superblock(journal);
+	if (err)
+		return err;
+
+	sb = journal->j_superblock;
+
+	journal->j_tail_sequence = ntohl(sb->s_sequence);
+	journal->j_tail = ntohl(sb->s_start);
+	journal->j_first = ntohl(sb->s_first);
+	journal->j_last = ntohl(sb->s_maxlen);
+	journal->j_errno = ntohl(sb->s_errno);
+
+	return 0;
+}
+
+
+/**
+ * int journal_load() - Read journal from disk.
+ * @journal: Journal to act on.
+ * 
+ * Given a journal_t structure which tells us which disk blocks contain
+ * a journal, read the journal from disk to initialise the in-memory
+ * structures.
+ */
+int journal_load(journal_t *journal)
+{
+	int err;
+
+	err = load_superblock(journal);
+	if (err)
+		return err;
+
+	/* If this is a V2 superblock, then we have to check the
+	 * features flags on it. */
+
+	if (journal->j_format_version >= 2) {
+		journal_superblock_t *sb = journal->j_superblock;
+
+		if ((sb->s_feature_ro_compat &
+		     ~cpu_to_be32(JFS_KNOWN_ROCOMPAT_FEATURES)) ||
+		    (sb->s_feature_incompat &
+		     ~cpu_to_be32(JFS_KNOWN_INCOMPAT_FEATURES))) {
+			printk (KERN_WARNING
+				"JBD: Unrecognised features on journal\n");
+			return -EINVAL;
+		}
+	}
+
+	/* Let the recovery code check whether it needs to recover any
+	 * data from the journal. */
+	if (journal_recover(journal))
+		goto recovery_error;
+
+	/* OK, we've finished with the dynamic journal bits:
+	 * reinitialise the dynamic contents of the superblock in memory
+	 * and reset them on disk. */
+	if (journal_reset(journal))
+		goto recovery_error;
+
+	journal->j_flags &= ~JFS_ABORT;
+	journal->j_flags |= JFS_LOADED;
+	return 0;
+
+recovery_error:
+	printk (KERN_WARNING "JBD: recovery failed\n");
+	return -EIO;
+}
+
+/**
+ * void journal_destroy() - Release a journal_t structure.
+ * @journal: Journal to act on.
+* 
+ * Release a journal_t structure once it is no longer in use by the
+ * journaled object.
+ */
+void journal_destroy (journal_t *journal)
+{
+	/* Wait for the commit thread to wake up and die. */
+	journal_kill_thread(journal);
+
+	/* Force a final log commit */
+	if (journal->j_running_transaction)
+		journal_commit_transaction(journal);
+
+	/* Force any old transactions to disk */
+	lock_journal(journal);
+	while (journal->j_checkpoint_transactions != NULL)
+		log_do_checkpoint(journal, 1);
+
+	J_ASSERT(journal->j_running_transaction == NULL);
+	J_ASSERT(journal->j_committing_transaction == NULL);
+	J_ASSERT(journal->j_checkpoint_transactions == NULL);
+
+	/* We can now mark the journal as empty. */
+	journal->j_tail = 0;
+	journal->j_tail_sequence = ++journal->j_transaction_sequence;
+	if (journal->j_sb_buffer) {
+		journal_update_superblock(journal, 1);
+		brelse(journal->j_sb_buffer);
+	}
+
+	if (journal->j_inode)
+		iput(journal->j_inode);
+	if (journal->j_revoke)
+		journal_destroy_revoke(journal);
+
+	unlock_journal(journal);
+	kfree(journal);
+	MOD_DEC_USE_COUNT;
+}
+
+
+/**
+ *int journal_check_used_features () - Check if features specified are used.
+ * 
+ * Check whether the journal uses all of a given set of
+ * features.  Return true (non-zero) if it does. 
+ **/
+
+int journal_check_used_features (journal_t *journal, unsigned long compat,
+				 unsigned long ro, unsigned long incompat)
+{
+	journal_superblock_t *sb;
+
+	if (!compat && !ro && !incompat)
+		return 1;
+	if (journal->j_format_version == 1)
+		return 0;
+
+	sb = journal->j_superblock;
+
+	if (((be32_to_cpu(sb->s_feature_compat) & compat) == compat) &&
+	    ((be32_to_cpu(sb->s_feature_ro_compat) & ro) == ro) &&
+	    ((be32_to_cpu(sb->s_feature_incompat) & incompat) == incompat))
+		return 1;
+
+	return 0;
+}
+
+/**
+ * int journal_check_available_features() - Check feature set in journalling layer
+ * 
+ * Check whether the journaling code supports the use of
+ * all of a given set of features on this journal.  Return true
+ * (non-zero) if it can. */
+
+int journal_check_available_features (journal_t *journal, unsigned long compat,
+				      unsigned long ro, unsigned long incompat)
+{
+	journal_superblock_t *sb;
+
+	if (!compat && !ro && !incompat)
+		return 1;
+
+	sb = journal->j_superblock;
+
+	/* We can support any known requested features iff the
+	 * superblock is in version 2.  Otherwise we fail to support any
+	 * extended sb features. */
+
+	if (journal->j_format_version != 2)
+		return 0;
+
+	if ((compat   & JFS_KNOWN_COMPAT_FEATURES) == compat &&
+	    (ro       & JFS_KNOWN_ROCOMPAT_FEATURES) == ro &&
+	    (incompat & JFS_KNOWN_INCOMPAT_FEATURES) == incompat)
+		return 1;
+
+	return 0;
+}
+
+/**
+ * int journal_set_features () - Mark a given journal feature in the superblock
+ *
+ * Mark a given journal feature as present on the
+ * superblock.  Returns true if the requested features could be set. 
+ *
+ */
+
+int journal_set_features (journal_t *journal, unsigned long compat,
+			  unsigned long ro, unsigned long incompat)
+{
+	journal_superblock_t *sb;
+
+	if (journal_check_used_features(journal, compat, ro, incompat))
+		return 1;
+
+	if (!journal_check_available_features(journal, compat, ro, incompat))
+		return 0;
+
+	jbd_debug(1, "Setting new features 0x%lx/0x%lx/0x%lx\n",
+		  compat, ro, incompat);
+
+	sb = journal->j_superblock;
+
+	sb->s_feature_compat    |= cpu_to_be32(compat);
+	sb->s_feature_ro_compat |= cpu_to_be32(ro);
+	sb->s_feature_incompat  |= cpu_to_be32(incompat);
+
+	return 1;
+}
+
+
+/**
+ * int journal_update_format () - Update on-disk journal structure.
+ *
+ * Given an initialised but unloaded journal struct, poke about in the
+ * on-disk structure to update it to the most recent supported version.
+ */
+int journal_update_format (journal_t *journal)
+{
+	journal_superblock_t *sb;
+	int err;
+
+	err = journal_get_superblock(journal);
+	if (err)
+		return err;
+
+	sb = journal->j_superblock;
+
+	switch (ntohl(sb->s_header.h_blocktype)) {
+	case JFS_SUPERBLOCK_V2:
+		return 0;
+	case JFS_SUPERBLOCK_V1:
+		return journal_convert_superblock_v1(journal, sb);
+	default:
+		break;
+	}
+	return -EINVAL;
+}
+
+static int journal_convert_superblock_v1(journal_t *journal,
+					 journal_superblock_t *sb)
+{
+	int offset, blocksize;
+	struct buffer_head *bh;
+
+	printk(KERN_WARNING
+		"JBD: Converting superblock from version 1 to 2.\n");
+
+	/* Pre-initialise new fields to zero */
+	offset = ((char *) &(sb->s_feature_compat)) - ((char *) sb);
+	blocksize = ntohl(sb->s_blocksize);
+	memset(&sb->s_feature_compat, 0, blocksize-offset);
+
+	sb->s_nr_users = cpu_to_be32(1);
+	sb->s_header.h_blocktype = cpu_to_be32(JFS_SUPERBLOCK_V2);
+	journal->j_format_version = 2;
+
+	bh = journal->j_sb_buffer;
+	BUFFER_TRACE(bh, "marking dirty");
+	mark_buffer_dirty(bh);
+	ll_rw_block(WRITE, 1, &bh);
+	wait_on_buffer(bh);
+	return 0;
+}
+
+
+/**
+ * int journal_flush () - Flush journal
+ * @journal: Journal to act on.
+ * 
+ * Flush all data for a given journal to disk and empty the journal.
+ * Filesystems can use this when remounting readonly to ensure that
+ * recovery does not need to happen on remount.
+ */
+
+int journal_flush (journal_t *journal)
+{
+	int err = 0;
+	transaction_t *transaction = NULL;
+	unsigned long old_tail;
+
+	lock_kernel();
+	
+	/* Force everything buffered to the log... */
+	if (journal->j_running_transaction) {
+		transaction = journal->j_running_transaction;
+		log_start_commit(journal, transaction);
+	} else if (journal->j_committing_transaction)
+		transaction = journal->j_committing_transaction;
+
+	/* Wait for the log commit to complete... */
+	if (transaction)
+		log_wait_commit(journal, transaction->t_tid);
+
+	/* ...and flush everything in the log out to disk. */
+	lock_journal(journal);
+	while (!err && journal->j_checkpoint_transactions != NULL)
+		err = log_do_checkpoint(journal, journal->j_maxlen);
+	cleanup_journal_tail(journal);
+
+	/* Finally, mark the journal as really needing no recovery.
+	 * This sets s_start==0 in the underlying superblock, which is
+	 * the magic code for a fully-recovered superblock.  Any future
+	 * commits of data to the journal will restore the current
+	 * s_start value. */
+	old_tail = journal->j_tail;
+	journal->j_tail = 0;
+	journal_update_superblock(journal, 1);
+	journal->j_tail = old_tail;
+
+	unlock_journal(journal);
+
+	J_ASSERT(!journal->j_running_transaction);
+	J_ASSERT(!journal->j_committing_transaction);
+	J_ASSERT(!journal->j_checkpoint_transactions);
+	J_ASSERT(journal->j_head == journal->j_tail);
+	J_ASSERT(journal->j_tail_sequence == journal->j_transaction_sequence);
+
+	unlock_kernel();
+	
+	return err;
+}
+
+/**
+ * int journal_wipe() - Wipe journal contents
+ * @journal: Journal to act on.
+ * @write: flag (see below)
+ * 
+ * Wipe out all of the contents of a journal, safely.  This will produce
+ * a warning if the journal contains any valid recovery information.
+ * Must be called between journal_init_*() and journal_load().
+ *
+ * If 'write' is non-zero, then we wipe out the journal on disk; otherwise
+ * we merely suppress recovery.
+ */
+
+int journal_wipe (journal_t *journal, int write)
+{
+	journal_superblock_t *sb;
+	int err = 0;
+
+	J_ASSERT (!(journal->j_flags & JFS_LOADED));
+
+	err = load_superblock(journal);
+	if (err)
+		return err;
+
+	sb = journal->j_superblock;
+
+	if (!journal->j_tail)
+		goto no_recovery;
+
+	printk (KERN_WARNING "JBD: %s recovery information on journal\n",
+		write ? "Clearing" : "Ignoring");
+
+	err = journal_skip_recovery(journal);
+	if (write)
+		journal_update_superblock(journal, 1);
+
+ no_recovery:
+	return err;
+}
+
+/*
+ * journal_dev_name: format a character string to describe on what
+ * device this journal is present.
+ */
+
+const char * journal_dev_name(journal_t *journal)
+{
+	kdev_t dev;
+
+	if (journal->j_inode)
+		dev = journal->j_inode->i_dev;
+	else
+		dev = journal->j_dev;
+
+	return bdevname(dev);
+}
+
+/*
+ * Journal abort has very specific semantics, which we describe
+ * for journal abort. 
+ *
+ * Two internal function, which provide abort to te jbd layer
+ * itself are here.
+ */
+
+/* Quick version for internal journal use (doesn't lock the journal).
+ * Aborts hard --- we mark the abort as occurred, but do _nothing_ else,
+ * and don't attempt to make any other journal updates. */
+void __journal_abort_hard (journal_t *journal)
+{
+	transaction_t *transaction;
+
+	if (journal->j_flags & JFS_ABORT)
+		return;
+
+	printk (KERN_ERR "Aborting journal on device %s.\n",
+		journal_dev_name(journal));
+
+	journal->j_flags |= JFS_ABORT;
+	transaction = journal->j_running_transaction;
+	if (transaction)
+		log_start_commit(journal, transaction);
+}
+
+/* Soft abort: record the abort error status in the journal superblock,
+ * but don't do any other IO. */
+void __journal_abort_soft (journal_t *journal, int errno)
+{
+	if (journal->j_flags & JFS_ABORT)
+		return;
+
+	if (!journal->j_errno)
+		journal->j_errno = errno;
+
+	__journal_abort_hard(journal);
+
+	if (errno)
+		journal_update_superblock(journal, 1);
+}
+
+/**
+ * void journal_abort () - Shutdown the journal immediately.
+ * @journal: the journal to shutdown.
+ * @errno:   an error number to record in the journal indicating
+ *           the reason for the shutdown.
+ *
+ * Perform a complete, immediate shutdown of the ENTIRE
+ * journal (not of a single transaction).  This operation cannot be
+ * undone without closing and reopening the journal.
+ *           
+ * The journal_abort function is intended to support higher level error
+ * recovery mechanisms such as the ext2/ext3 remount-readonly error
+ * mode.
+ *
+ * Journal abort has very specific semantics.  Any existing dirty,
+ * unjournaled buffers in the main filesystem will still be written to
+ * disk by bdflush, but the journaling mechanism will be suspended
+ * immediately and no further transaction commits will be honoured.
+ *
+ * Any dirty, journaled buffers will be written back to disk without
+ * hitting the journal.  Atomicity cannot be guaranteed on an aborted
+ * filesystem, but we _do_ attempt to leave as much data as possible
+ * behind for fsck to use for cleanup.
+ *
+ * Any attempt to get a new transaction handle on a journal which is in
+ * ABORT state will just result in an -EROFS error return.  A
+ * journal_stop on an existing handle will return -EIO if we have
+ * entered abort state during the update.
+ *
+ * Recursive transactions are not disturbed by journal abort until the
+ * final journal_stop, which will receive the -EIO error.
+ *
+ * Finally, the journal_abort call allows the caller to supply an errno
+ * which will be recorded (if possible) in the journal superblock.  This
+ * allows a client to record failure conditions in the middle of a
+ * transaction without having to complete the transaction to record the
+ * failure to disk.  ext3_error, for example, now uses this
+ * functionality.
+ *
+ * Errors which originate from within the journaling layer will NOT
+ * supply an errno; a null errno implies that absolutely no further
+ * writes are done to the journal (unless there are any already in
+ * progress).
+ * 
+ */
+
+void journal_abort (journal_t *journal, int errno)
+{
+	lock_journal(journal);
+	__journal_abort_soft(journal, errno);
+	unlock_journal(journal);
+}
+
+/** 
+ * int journal_errno () - returns the journal's error state.
+ * @journal: journal to examine.
+ *
+ * This is the errno numbet set with journal_abort(), the last
+ * time the journal was mounted - if the journal was stopped
+ * without calling abort this will be 0.
+ *
+ * If the journal has been aborted on this mount time -EROFS will
+ * be returned.
+ */
+int journal_errno (journal_t *journal)
+{
+	int err;
+
+	lock_journal(journal);
+	if (journal->j_flags & JFS_ABORT)
+		err = -EROFS;
+	else
+		err = journal->j_errno;
+	unlock_journal(journal);
+	return err;
+}
+
+
+
+/** 
+ * int journal_clear_err () - clears the journal's error state
+ *
+ * An error must be cleared or Acked to take a FS out of readonly
+ * mode.
+ */
+int journal_clear_err (journal_t *journal)
+{
+	int err = 0;
+
+	lock_journal(journal);
+	if (journal->j_flags & JFS_ABORT)
+		err = -EROFS;
+	else
+		journal->j_errno = 0;
+	unlock_journal(journal);
+	return err;
+}
+
+
+/** 
+ * void journal_ack_err() - Ack journal err.
+ *
+ * An error must be cleared or Acked to take a FS out of readonly
+ * mode.
+ */
+void journal_ack_err (journal_t *journal)
+{
+	lock_journal(journal);
+	if (journal->j_errno)
+		journal->j_flags |= JFS_ACK_ERR;
+	unlock_journal(journal);
+}
+
+
+/*
+ * Report any unexpected dirty buffers which turn up.  Normally those
+ * indicate an error, but they can occur if the user is running (say)
+ * tune2fs to modify the live filesystem, so we need the option of
+ * continuing as gracefully as possible.  #
+ *
+ * The caller should already hold the journal lock and
+ * journal_datalist_lock spinlock: most callers will need those anyway
+ * in order to probe the buffer's journaling state safely.
+ */
+void __jbd_unexpected_dirty_buffer(const char *function, int line, 
+				 struct journal_head *jh)
+{
+	struct buffer_head *bh = jh2bh(jh);
+	int jlist;
+	
+	if (buffer_dirty(bh)) {
+		printk ("%sUnexpected dirty buffer encountered at "
+			"%s:%d (%s blocknr %lu)\n",
+			KERN_WARNING, function, line,
+			kdevname(bh->b_dev), bh->b_blocknr);
+#ifdef JBD_PARANOID_WRITES
+		J_ASSERT_BH (bh, !buffer_dirty(bh));
+#endif	
+		
+		/* If this buffer is one which might reasonably be dirty
+		 * --- ie. data, or not part of this journal --- then
+		 * we're OK to leave it alone, but otherwise we need to
+		 * move the dirty bit to the journal's own internal
+		 * JBDDirty bit. */
+		jlist = jh->b_jlist;
+		
+		if (jlist == BJ_Metadata || jlist == BJ_Reserved || 
+		    jlist == BJ_Shadow || jlist == BJ_Forget) {
+			if (atomic_set_buffer_clean(jh2bh(jh))) {
+				set_bit(BH_JBDDirty, &jh2bh(jh)->b_state);
+			}
+		}
+	}
+}
+
+
+int journal_blocks_per_page(struct inode *inode)
+{
+	return 1 << (PAGE_CACHE_SHIFT - inode->i_sb->s_blocksize_bits);
+}
+
+/*
+ * shrink_journal_memory().
+ * Called when we're under memory pressure.  Free up all the written-back
+ * checkpointed metadata buffers.
+ */
+void shrink_journal_memory(void)
+{
+	struct list_head *list;
+
+	lock_kernel();
+	list_for_each(list, &all_journals) {
+		journal_t *journal =
+			list_entry(list, journal_t, j_all_journals);
+		spin_lock(&journal_datalist_lock);
+		__journal_clean_checkpoint_list(journal);
+		spin_unlock(&journal_datalist_lock);
+	}
+	unlock_kernel();
+}
+
+/*
+ * Simple support for retying memory allocations.  Introduced to help to
+ * debug different VM deadlock avoidance strategies. 
+ */
+/*
+ * Simple support for retying memory allocations.  Introduced to help to
+ * debug different VM deadlock avoidance strategies. 
+ */
+void * __jbd_kmalloc (const char *where, size_t size, int flags, int retry)
+{
+	void *p;
+	static unsigned long last_warning;
+	
+	while (1) {
+		p = kmalloc(size, flags);
+		if (p)
+			return p;
+		if (!retry)
+			return NULL;
+		/* Log every retry for debugging.  Also log them to the
+		 * syslog, but do rate-limiting on the non-debugging
+		 * messages. */
+		jbd_debug(1, "ENOMEM in %s, retrying.\n", where);
+
+		if (time_after(jiffies, last_warning + 120*HZ)) {
+			printk(KERN_NOTICE
+			       "ENOMEM in %s, retrying.\n", where);
+			last_warning = jiffies;
+		}
+		
+		yield();
+	}
+}
+
+/*
+ * Journal_head storage management
+ */
+static kmem_cache_t *journal_head_cache;
+#ifdef CONFIG_JBD_DEBUG
+static atomic_t nr_journal_heads = ATOMIC_INIT(0);
+#endif
+
+static int journal_init_journal_head_cache(void)
+{
+	int retval;
+
+	J_ASSERT(journal_head_cache == 0);
+	journal_head_cache = kmem_cache_create("journal_head",
+				sizeof(struct journal_head),
+				0,		/* offset */
+				0,		/* flags */
+				NULL,		/* ctor */
+				NULL);		/* dtor */
+	retval = 0;
+	if (journal_head_cache == 0) {
+		retval = -ENOMEM;
+		printk(KERN_EMERG "JBD: no memory for journal_head cache\n");
+	}
+	return retval;
+}
+
+static void journal_destroy_journal_head_cache(void)
+{
+	J_ASSERT(journal_head_cache != NULL);
+	kmem_cache_destroy(journal_head_cache);
+	journal_head_cache = 0;
+}
+
+/*
+ * journal_head splicing and dicing
+ */
+static struct journal_head *journal_alloc_journal_head(void)
+{
+	struct journal_head *ret;
+	static unsigned long last_warning;
+
+#ifdef CONFIG_JBD_DEBUG
+	atomic_inc(&nr_journal_heads);
+#endif
+	ret = kmem_cache_alloc(journal_head_cache, GFP_NOFS);
+	if (ret == 0) {
+		jbd_debug(1, "out of memory for journal_head\n");
+		if (time_after(jiffies, last_warning + 5*HZ)) {
+			printk(KERN_NOTICE "ENOMEM in %s, retrying.\n",
+				__FUNCTION__);
+			last_warning = jiffies;
+		}
+		while (ret == 0) {
+			yield();
+			ret = kmem_cache_alloc(journal_head_cache, GFP_NOFS);
+		}
+	}
+	return ret;
+}
+
+static void journal_free_journal_head(struct journal_head *jh)
+{
+#ifdef CONFIG_JBD_DEBUG
+	atomic_dec(&nr_journal_heads);
+	memset(jh, 0x5b, sizeof(*jh));
+#endif
+	kmem_cache_free(journal_head_cache, jh);
+}
+
+/*
+ * A journal_head is attached to a buffer_head whenever JBD has an
+ * interest in the buffer.
+ *
+ * Whenever a buffer has an attached journal_head, its ->b_state:BH_JBD bit
+ * is set.  This bit is tested in core kernel code where we need to take
+ * JBD-specific actions.  Testing the zeroness of ->b_journal_head is not
+ * reliable there.
+ *
+ * When a buffer has its BH_JBD bit set, its ->b_count is elevated by one.
+ *
+ * When a buffer has its BH_JBD bit set it is immune from being released by
+ * core kernel code, mainly via ->b_count.
+ *
+ * A journal_head may be detached from its buffer_head when the journal_head's
+ * b_transaction, b_cp_transaction and b_next_transaction pointers are NULL.
+ * Various places in JBD call journal_remove_journal_head() to indicate that the
+ * journal_head can be dropped if needed.
+ *
+ * Various places in the kernel want to attach a journal_head to a buffer_head
+ * _before_ attaching the journal_head to a transaction.  To protect the
+ * journal_head in this situation, journal_add_journal_head elevates the
+ * journal_head's b_jcount refcount by one.  The caller must call
+ * journal_unlock_journal_head() to undo this.
+ *
+ * So the typical usage would be:
+ *
+ *	(Attach a journal_head if needed.  Increments b_jcount)
+ *	struct journal_head *jh = journal_add_journal_head(bh);
+ *	...
+ *	jh->b_transaction = xxx;
+ *	journal_unlock_journal_head(jh);
+ *
+ * Now, the journal_head's b_jcount is zero, but it is safe from being released
+ * because it has a non-zero b_transaction.
+ */
+
+/*
+ * Give a buffer_head a journal_head.
+ *
+ * Doesn't need the journal lock.
+ * May sleep.
+ * Cannot be called with journal_datalist_lock held.
+ */
+struct journal_head *journal_add_journal_head(struct buffer_head *bh)
+{
+	struct journal_head *jh;
+
+	spin_lock(&journal_datalist_lock);
+	if (buffer_jbd(bh)) {
+		jh = bh2jh(bh);
+	} else {
+		J_ASSERT_BH(bh,
+			(atomic_read(&bh->b_count) > 0) ||
+			(bh->b_page && bh->b_page->mapping));
+		spin_unlock(&journal_datalist_lock);
+		jh = journal_alloc_journal_head();
+		memset(jh, 0, sizeof(*jh));
+		spin_lock(&journal_datalist_lock);
+
+		if (buffer_jbd(bh)) {
+			/* Someone did it for us! */
+			J_ASSERT_BH(bh, bh->b_private != NULL);
+			journal_free_journal_head(jh);
+			jh = bh->b_private;
+		} else {
+			/*
+			 * We actually don't need jh_splice_lock when
+			 * adding a journal_head - only on removal.
+			 */
+			spin_lock(&jh_splice_lock);
+			set_bit(BH_JBD, &bh->b_state);
+			bh->b_private = jh;
+			jh->b_bh = bh;
+			atomic_inc(&bh->b_count);
+			spin_unlock(&jh_splice_lock);
+			BUFFER_TRACE(bh, "added journal_head");
+		}
+	}
+	jh->b_jcount++;
+	spin_unlock(&journal_datalist_lock);
+	return bh->b_private;
+}
+
+/*
+ * journal_remove_journal_head(): if the buffer isn't attached to a transaction
+ * and has a zero b_jcount then remove and release its journal_head.   If we did
+ * see that the buffer is not used by any transaction we also "logically"
+ * decrement ->b_count.
+ *
+ * We in fact take an additional increment on ->b_count as a convenience,
+ * because the caller usually wants to do additional things with the bh
+ * after calling here.
+ * The caller of journal_remove_journal_head() *must* run __brelse(bh) at some
+ * time.  Once the caller has run __brelse(), the buffer is eligible for
+ * reaping by try_to_free_buffers().
+ *
+ * Requires journal_datalist_lock.
+ */
+void __journal_remove_journal_head(struct buffer_head *bh)
+{
+	struct journal_head *jh = bh2jh(bh);
+
+	assert_spin_locked(&journal_datalist_lock);
+	J_ASSERT_JH(jh, jh->b_jcount >= 0);
+	atomic_inc(&bh->b_count);
+	if (jh->b_jcount == 0) {
+		if (jh->b_transaction == NULL &&
+				jh->b_next_transaction == NULL &&
+				jh->b_cp_transaction == NULL) {
+			J_ASSERT_BH(bh, buffer_jbd(bh));
+			J_ASSERT_BH(bh, jh2bh(jh) == bh);
+			BUFFER_TRACE(bh, "remove journal_head");
+			spin_lock(&jh_splice_lock);
+			bh->b_private = NULL;
+			jh->b_bh = NULL;	/* debug, really */
+			clear_bit(BH_JBD, &bh->b_state);
+			__brelse(bh);
+			spin_unlock(&jh_splice_lock);
+			journal_free_journal_head(jh);
+		} else {
+			BUFFER_TRACE(bh, "journal_head was locked");
+		}
+	}
+}
+
+void journal_unlock_journal_head(struct journal_head *jh)
+{
+	spin_lock(&journal_datalist_lock);
+	J_ASSERT_JH(jh, jh->b_jcount > 0);
+	--jh->b_jcount;
+	if (!jh->b_jcount && !jh->b_transaction) {
+		struct buffer_head *bh;
+		bh = jh2bh(jh);
+		__journal_remove_journal_head(bh);
+		__brelse(bh);
+	}
+	
+	spin_unlock(&journal_datalist_lock);
+}
+
+void journal_remove_journal_head(struct buffer_head *bh)
+{
+	spin_lock(&journal_datalist_lock);
+	__journal_remove_journal_head(bh);
+	spin_unlock(&journal_datalist_lock);
+}
+
+/*
+ * /proc tunables
+ */
+#if defined(CONFIG_JBD_DEBUG)
+int journal_enable_debug;
+EXPORT_SYMBOL(journal_enable_debug);
+#endif
+
+#if defined(CONFIG_JBD_DEBUG) && defined(CONFIG_PROC_FS)
+
+static struct proc_dir_entry *proc_jbd_debug;
+
+int read_jbd_debug(char *page, char **start, off_t off,
+			  int count, int *eof, void *data)
+{
+	int ret;
+
+	ret = sprintf(page + off, "%d\n", journal_enable_debug);
+	*eof = 1;
+	return ret;
+}
+
+int write_jbd_debug(struct file *file, const char *buffer,
+			   unsigned long count, void *data)
+{
+	char buf[32];
+
+	if (count > ARRAY_SIZE(buf) - 1)
+		count = ARRAY_SIZE(buf) - 1;
+	if (copy_from_user(buf, buffer, count))
+		return -EFAULT;
+	buf[ARRAY_SIZE(buf) - 1] = '\0';
+	journal_enable_debug = simple_strtoul(buf, NULL, 10);
+	return count;
+}
+
+#define JBD_PROC_NAME "sys/fs/jbd-debug"
+
+static void __init create_jbd_proc_entry(void)
+{
+	proc_jbd_debug = create_proc_entry(JBD_PROC_NAME, 0644, NULL);
+	if (proc_jbd_debug) {
+		/* Why is this so hard? */
+		proc_jbd_debug->read_proc = read_jbd_debug;
+		proc_jbd_debug->write_proc = write_jbd_debug;
+	}
+}
+
+static void __exit remove_jbd_proc_entry(void)
+{
+	if (proc_jbd_debug)
+		remove_proc_entry(JBD_PROC_NAME, NULL);
+}
+
+#else
+
+#define create_jbd_proc_entry() do {} while (0)
+#define remove_jbd_proc_entry() do {} while (0)
+
+#endif
+
+/*
+ * Module startup and shutdown
+ */
+
+static int __init journal_init_caches(void)
+{
+	int ret;
+
+	ret = journal_init_revoke_caches();
+	if (ret == 0)
+		ret = journal_init_journal_head_cache();
+	return ret;
+}
+
+static void journal_destroy_caches(void)
+{
+	journal_destroy_revoke_caches();
+	journal_destroy_journal_head_cache();
+}
+
+static int __init journal_init(void)
+{
+	int ret;
+
+	printk(KERN_INFO "Journalled Block Device driver loaded\n");
+	ret = journal_init_caches();
+	if (ret != 0)
+		journal_destroy_caches();
+	create_jbd_proc_entry();
+	return ret;
+}
+
+static void __exit journal_exit(void)
+{
+#ifdef CONFIG_JBD_DEBUG
+	int n = atomic_read(&nr_journal_heads);
+	if (n)
+		printk(KERN_EMERG "JBD: leaked %d journal_heads!\n", n);
+#endif
+	remove_jbd_proc_entry();
+	journal_destroy_caches();
+}
+
+MODULE_LICENSE("GPL");
+module_init(journal_init);
+module_exit(journal_exit);
+
diff --git a/fs/jbd/recovery.c b/fs/jbd/recovery.c
new file mode 100644
index 00000000000000..35ec8c278c8bd9
--- /dev/null
+++ b/fs/jbd/recovery.c
@@ -0,0 +1,594 @@
+/*
+ * linux/fs/recovery.c
+ * 
+ * Written by Stephen C. Tweedie <sct@redhat.com>, 1999
+ *
+ * Copyright 1999-2000 Red Hat Software --- All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * Journal recovery routines for the generic filesystem journaling code;
+ * part of the ext2fs journaling system.  
+ */
+
+#ifndef __KERNEL__
+#include "jfs_user.h"
+#else
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/jbd.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/locks.h>
+#endif
+
+/*
+ * Maintain information about the progress of the recovery job, so that
+ * the different passes can carry information between them. 
+ */
+struct recovery_info 
+{
+	tid_t		start_transaction;	
+	tid_t		end_transaction;
+	
+	int		nr_replays;
+	int		nr_revokes;
+	int		nr_revoke_hits;
+};
+
+enum passtype {PASS_SCAN, PASS_REVOKE, PASS_REPLAY};
+static int do_one_pass(journal_t *journal,
+				struct recovery_info *info, enum passtype pass);
+static int scan_revoke_records(journal_t *, struct buffer_head *,
+				tid_t, struct recovery_info *);
+
+#ifdef __KERNEL__
+
+/* Release readahead buffers after use */
+void journal_brelse_array(struct buffer_head *b[], int n)
+{
+	while (--n >= 0)
+		brelse (b[n]);
+}
+
+
+/*
+ * When reading from the journal, we are going through the block device
+ * layer directly and so there is no readahead being done for us.  We
+ * need to implement any readahead ourselves if we want it to happen at
+ * all.  Recovery is basically one long sequential read, so make sure we
+ * do the IO in reasonably large chunks.
+ *
+ * This is not so critical that we need to be enormously clever about
+ * the readahead size, though.  128K is a purely arbitrary, good-enough
+ * fixed value.
+ */
+
+#define MAXBUF 8
+static int do_readahead(journal_t *journal, unsigned int start)
+{
+	int err;
+	unsigned int max, nbufs, next;
+	unsigned long blocknr;
+	struct buffer_head *bh;
+	
+	struct buffer_head * bufs[MAXBUF];
+	
+	/* Do up to 128K of readahead */
+	max = start + (128 * 1024 / journal->j_blocksize);
+	if (max > journal->j_maxlen)
+		max = journal->j_maxlen;
+
+	/* Do the readahead itself.  We'll submit MAXBUF buffer_heads at
+	 * a time to the block device IO layer. */
+	
+	nbufs = 0;
+	
+	for (next = start; next < max; next++) {
+		err = journal_bmap(journal, next, &blocknr);
+
+		if (err) {
+			printk (KERN_ERR "JBD: bad block at offset %u\n",
+				next);
+			goto failed;
+		}
+
+		bh = getblk(journal->j_dev, blocknr, journal->j_blocksize);
+		if (!bh) {
+			err = -ENOMEM;
+			goto failed;
+		}
+
+		if (!buffer_uptodate(bh) && !buffer_locked(bh)) {
+			bufs[nbufs++] = bh;
+			if (nbufs == MAXBUF) {
+				ll_rw_block(READ, nbufs, bufs);
+				journal_brelse_array(bufs, nbufs);
+				nbufs = 0;
+			}
+		} else
+			brelse(bh);
+	}
+
+	if (nbufs)
+		ll_rw_block(READ, nbufs, bufs);
+	err = 0;
+
+failed:	
+	if (nbufs) 
+		journal_brelse_array(bufs, nbufs);
+	return err;
+}
+
+#endif /* __KERNEL__ */
+
+
+/*
+ * Read a block from the journal
+ */
+
+static int jread(struct buffer_head **bhp, journal_t *journal, 
+		 unsigned int offset)
+{
+	int err;
+	unsigned long blocknr;
+	struct buffer_head *bh;
+
+	*bhp = NULL;
+
+	J_ASSERT (offset < journal->j_maxlen);
+	
+	err = journal_bmap(journal, offset, &blocknr);
+
+	if (err) {
+		printk (KERN_ERR "JBD: bad block at offset %u\n",
+			offset);
+		return err;
+	}
+
+	bh = getblk(journal->j_dev, blocknr, journal->j_blocksize);
+	if (!bh)
+		return -ENOMEM;
+
+	if (!buffer_uptodate(bh)) {
+		/* If this is a brand new buffer, start readahead.
+                   Otherwise, we assume we are already reading it.  */
+		if (!buffer_req(bh))
+			do_readahead(journal, offset);
+		wait_on_buffer(bh);
+	}
+
+	if (!buffer_uptodate(bh)) {
+		printk (KERN_ERR "JBD: Failed to read block at offset %u\n",
+			offset);
+		brelse(bh);
+		return -EIO;
+	}
+
+	*bhp = bh;
+	return 0;
+}
+
+
+/*
+ * Count the number of in-use tags in a journal descriptor block.
+ */
+
+static int count_tags(struct buffer_head *bh, int size)
+{
+	char *			tagp;
+	journal_block_tag_t *	tag;
+	int			nr = 0;
+
+	tagp = &bh->b_data[sizeof(journal_header_t)];
+
+	while ((tagp - bh->b_data + sizeof(journal_block_tag_t)) <= size) {
+		tag = (journal_block_tag_t *) tagp;
+
+		nr++;
+		tagp += sizeof(journal_block_tag_t);
+		if (!(tag->t_flags & htonl(JFS_FLAG_SAME_UUID)))
+			tagp += 16;
+
+		if (tag->t_flags & htonl(JFS_FLAG_LAST_TAG))
+			break;
+	}
+
+	return nr;
+}
+
+
+/* Make sure we wrap around the log correctly! */
+#define wrap(journal, var)						\
+do {									\
+	if (var >= (journal)->j_last)					\
+		var -= ((journal)->j_last - (journal)->j_first);	\
+} while (0)
+
+/**
+ * int journal_recover(journal_t *journal) - recovers a on-disk journal
+ * @journal: the journal to recover
+ * 
+ * The primary function for recovering the log contents when mounting a
+ * journaled device.  
+ */
+int journal_recover(journal_t *journal)
+{
+/*
+ * Recovery is done in three passes.  In the first pass, we look for the
+ * end of the log.  In the second, we assemble the list of revoke
+ * blocks.  In the third and final pass, we replay any un-revoked blocks
+ * in the log.  
+ */
+
+	int			err;
+	journal_superblock_t *	sb;
+
+	struct recovery_info	info;
+	
+	memset(&info, 0, sizeof(info));
+	sb = journal->j_superblock;
+	
+	/* 
+	 * The journal superblock's s_start field (the current log head)
+	 * is always zero if, and only if, the journal was cleanly
+	 * unmounted.  
+	 */
+
+	if (!sb->s_start) {
+		jbd_debug(1, "No recovery required, last transaction %d\n",
+			  ntohl(sb->s_sequence));
+		journal->j_transaction_sequence = ntohl(sb->s_sequence) + 1;
+		return 0;
+	}
+	
+
+	err = do_one_pass(journal, &info, PASS_SCAN);
+	if (!err)
+		err = do_one_pass(journal, &info, PASS_REVOKE);
+	if (!err)
+		err = do_one_pass(journal, &info, PASS_REPLAY);
+
+	jbd_debug(0, "JBD: recovery, exit status %d, "
+		  "recovered transactions %u to %u\n",
+		  err, info.start_transaction, info.end_transaction);
+	jbd_debug(0, "JBD: Replayed %d and revoked %d/%d blocks\n", 
+		  info.nr_replays, info.nr_revoke_hits, info.nr_revokes);
+
+	/* Restart the log at the next transaction ID, thus invalidating
+	 * any existing commit records in the log. */
+	journal->j_transaction_sequence = ++info.end_transaction;
+		
+	journal_clear_revoke(journal);
+	fsync_no_super(journal->j_fs_dev);
+	return err;
+}
+
+/**
+ * int journal_skip_recovery() - Start journal and wipe exiting records 
+ * @journal: journal to startup
+ * 
+ * Locate any valid recovery information from the journal and set up the
+ * journal structures in memory to ignore it (presumably because the
+ * caller has evidence that it is out of date).  
+ * This function does'nt appear to be exorted..
+ */
+int journal_skip_recovery(journal_t *journal)
+{
+/*
+ * We perform one pass over the journal to allow us to tell the user how
+ * much recovery information is being erased, and to let us initialise
+ * the journal transaction sequence numbers to the next unused ID. 
+ */
+
+	int			err;
+	journal_superblock_t *	sb;
+
+	struct recovery_info	info;
+	
+	memset (&info, 0, sizeof(info));
+	sb = journal->j_superblock;
+	
+	err = do_one_pass(journal, &info, PASS_SCAN);
+
+	if (err) {
+		printk(KERN_ERR "JBD: error %d scanning journal\n", err);
+		++journal->j_transaction_sequence;
+	} else {
+#ifdef CONFIG_JBD_DEBUG
+		int dropped = info.end_transaction - ntohl(sb->s_sequence);
+#endif
+		
+		jbd_debug(0, 
+			  "JBD: ignoring %d transaction%s from the journal.\n",
+			  dropped, (dropped == 1) ? "" : "s");
+		journal->j_transaction_sequence = ++info.end_transaction;
+	}
+
+	journal->j_tail = 0;
+	
+	return err;
+}
+
+static int do_one_pass(journal_t *journal,
+			struct recovery_info *info, enum passtype pass)
+{
+	
+	unsigned int		first_commit_ID, next_commit_ID;
+	unsigned long		next_log_block;
+	int			err, success = 0;
+	journal_superblock_t *	sb;
+	journal_header_t * 	tmp;
+	struct buffer_head *	bh;
+	unsigned int		sequence;
+	int			blocktype;
+	
+	/* Precompute the maximum metadata descriptors in a descriptor block */
+	int			MAX_BLOCKS_PER_DESC;
+	MAX_BLOCKS_PER_DESC = ((journal->j_blocksize-sizeof(journal_header_t))
+			       / sizeof(journal_block_tag_t));
+
+	/* 
+	 * First thing is to establish what we expect to find in the log
+	 * (in terms of transaction IDs), and where (in terms of log
+	 * block offsets): query the superblock.  
+	 */
+
+	sb = journal->j_superblock;
+	next_commit_ID = ntohl(sb->s_sequence);
+	next_log_block = ntohl(sb->s_start);
+
+	first_commit_ID = next_commit_ID;
+	if (pass == PASS_SCAN)
+		info->start_transaction = first_commit_ID;
+
+	jbd_debug(1, "Starting recovery pass %d\n", pass);
+
+	/*
+	 * Now we walk through the log, transaction by transaction,
+	 * making sure that each transaction has a commit block in the
+	 * expected place.  Each complete transaction gets replayed back
+	 * into the main filesystem. 
+	 */
+
+	while (1) {
+		int			flags;
+		char *			tagp;
+		journal_block_tag_t *	tag;
+		struct buffer_head *	obh;
+		struct buffer_head *	nbh;
+		
+		/* If we already know where to stop the log traversal,
+		 * check right now that we haven't gone past the end of
+		 * the log. */
+		
+		if (pass != PASS_SCAN)
+			if (tid_geq(next_commit_ID, info->end_transaction))
+				break;
+
+		jbd_debug(2, "Scanning for sequence ID %u at %lu/%lu\n",
+			  next_commit_ID, next_log_block, journal->j_last);
+
+		/* Skip over each chunk of the transaction looking
+		 * either the next descriptor block or the final commit
+		 * record. */
+		
+		jbd_debug(3, "JBD: checking block %ld\n", next_log_block);
+		err = jread(&bh, journal, next_log_block);
+		if (err)
+			goto failed;
+
+		next_log_block++;
+		wrap(journal, next_log_block);
+		
+		/* What kind of buffer is it? 
+		 * 
+		 * If it is a descriptor block, check that it has the
+		 * expected sequence number.  Otherwise, we're all done
+		 * here. */
+
+		tmp = (journal_header_t *)bh->b_data;
+		
+		if (tmp->h_magic != htonl(JFS_MAGIC_NUMBER)) {
+			brelse(bh);
+			break;
+		}
+
+		blocktype = ntohl(tmp->h_blocktype);
+		sequence = ntohl(tmp->h_sequence);
+		jbd_debug(3, "Found magic %d, sequence %d\n", 
+			  blocktype, sequence);
+		
+		if (sequence != next_commit_ID) {
+			brelse(bh);
+			break;
+		}
+		
+		/* OK, we have a valid descriptor block which matches
+		 * all of the sequence number checks.  What are we going
+		 * to do with it?  That depends on the pass... */
+
+		switch(blocktype) {
+		case JFS_DESCRIPTOR_BLOCK:
+			/* If it is a valid descriptor block, replay it
+			 * in pass REPLAY; otherwise, just skip over the
+			 * blocks it describes. */
+			if (pass != PASS_REPLAY) {
+				next_log_block +=
+					count_tags(bh, journal->j_blocksize);
+				wrap(journal, next_log_block);
+				brelse(bh);
+				continue;
+			}
+
+			/* A descriptor block: we can now write all of
+			 * the data blocks.  Yay, useful work is finally
+			 * getting done here! */
+
+			tagp = &bh->b_data[sizeof(journal_header_t)];
+			while ((tagp - bh->b_data +sizeof(journal_block_tag_t))
+			       <= journal->j_blocksize) {
+				unsigned long io_block;
+
+				tag = (journal_block_tag_t *) tagp;
+				flags = ntohl(tag->t_flags);
+				
+				io_block = next_log_block++;
+				wrap(journal, next_log_block);
+				err = jread(&obh, journal, io_block);
+				if (err) {
+					/* Recover what we can, but
+					 * report failure at the end. */
+					success = err;
+					printk (KERN_ERR 
+						"JBD: IO error %d recovering "
+						"block %ld in log\n",
+						err, io_block);
+				} else {
+					unsigned long blocknr;
+					
+					J_ASSERT(obh != NULL);
+					blocknr = ntohl(tag->t_blocknr);
+
+					/* If the block has been
+					 * revoked, then we're all done
+					 * here. */
+					if (journal_test_revoke
+					    (journal, blocknr, 
+					     next_commit_ID)) {
+						brelse(obh);
+						++info->nr_revoke_hits;
+						goto skip_write;
+					}
+								
+					/* Find a buffer for the new
+					 * data being restored */
+					nbh = getblk(journal->j_fs_dev, blocknr,
+						     journal->j_blocksize);
+					if (nbh == NULL) {
+						printk(KERN_ERR 
+						       "JBD: Out of memory "
+						       "during recovery.\n");
+						err = -ENOMEM;
+						brelse(bh);
+						brelse(obh);
+						goto failed;
+					}
+
+					lock_buffer(nbh);
+					memcpy(nbh->b_data, obh->b_data,
+							journal->j_blocksize);
+					if (flags & JFS_FLAG_ESCAPE) {
+						*((unsigned int *)bh->b_data) =
+							htonl(JFS_MAGIC_NUMBER);
+					}
+
+					BUFFER_TRACE(nbh, "marking dirty");
+					mark_buffer_dirty(nbh);
+					BUFFER_TRACE(nbh, "marking uptodate");
+					mark_buffer_uptodate(nbh, 1);
+					unlock_buffer(nbh);
+					++info->nr_replays;
+					/* ll_rw_block(WRITE, 1, &nbh); */
+					brelse(obh);
+					brelse(nbh);
+				}
+				
+			skip_write:
+				tagp += sizeof(journal_block_tag_t);
+				if (!(flags & JFS_FLAG_SAME_UUID))
+					tagp += 16;
+
+				if (flags & JFS_FLAG_LAST_TAG)
+					break;
+			}
+			
+			brelse(bh);
+			continue;
+
+		case JFS_COMMIT_BLOCK:
+			/* Found an expected commit block: not much to
+			 * do other than move on to the next sequence
+			 * number. */
+			brelse(bh);
+			next_commit_ID++;
+			continue;
+
+		case JFS_REVOKE_BLOCK:
+			/* If we aren't in the REVOKE pass, then we can
+			 * just skip over this block. */
+			if (pass != PASS_REVOKE) {
+				brelse(bh);
+				continue;
+			}
+
+			err = scan_revoke_records(journal, bh,
+						  next_commit_ID, info);
+			brelse(bh);
+			if (err)
+				goto failed;
+			continue;
+
+		default:
+			jbd_debug(3, "Unrecognised magic %d, end of scan.\n",
+				  blocktype);
+			goto done;
+		}
+	}
+
+ done:
+	/* 
+	 * We broke out of the log scan loop: either we came to the
+	 * known end of the log or we found an unexpected block in the
+	 * log.  If the latter happened, then we know that the "current"
+	 * transaction marks the end of the valid log.
+	 */
+	
+	if (pass == PASS_SCAN)
+		info->end_transaction = next_commit_ID;
+	else {
+		/* It's really bad news if different passes end up at
+		 * different places (but possible due to IO errors). */
+		if (info->end_transaction != next_commit_ID) {
+			printk (KERN_ERR "JBD: recovery pass %d ended at "
+				"transaction %u, expected %u\n",
+				pass, next_commit_ID, info->end_transaction);
+			if (!success)
+				success = -EIO;
+		}
+	}
+
+	return success;
+
+ failed:
+	return err;
+}
+
+
+/* Scan a revoke record, marking all blocks mentioned as revoked. */
+
+static int scan_revoke_records(journal_t *journal, struct buffer_head *bh, 
+			       tid_t sequence, struct recovery_info *info)
+{
+	journal_revoke_header_t *header;
+	int offset, max;
+
+	header = (journal_revoke_header_t *) bh->b_data;
+	offset = sizeof(journal_revoke_header_t);
+	max = ntohl(header->r_count);
+	
+	while (offset < max) {
+		unsigned long blocknr;
+		int err;
+		
+		blocknr = ntohl(* ((unsigned int *) (bh->b_data+offset)));
+		offset += 4;
+		err = journal_set_revoke(journal, blocknr, sequence);
+		if (err)
+			return err;
+		++info->nr_revokes;
+	}
+	return 0;
+}
diff --git a/fs/jbd/revoke.c b/fs/jbd/revoke.c
new file mode 100644
index 00000000000000..e8bee4a2f06ab5
--- /dev/null
+++ b/fs/jbd/revoke.c
@@ -0,0 +1,635 @@
+/*
+ * linux/fs/revoke.c
+ * 
+ * Written by Stephen C. Tweedie <sct@redhat.com>, 2000
+ *
+ * Copyright 2000 Red Hat corp --- All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * Journal revoke routines for the generic filesystem journaling code;
+ * part of the ext2fs journaling system.
+ *
+ * Revoke is the mechanism used to prevent old log records for deleted
+ * metadata from being replayed on top of newer data using the same
+ * blocks.  The revoke mechanism is used in two separate places:
+ * 
+ * + Commit: during commit we write the entire list of the current
+ *   transaction's revoked blocks to the journal
+ * 
+ * + Recovery: during recovery we record the transaction ID of all
+ *   revoked blocks.  If there are multiple revoke records in the log
+ *   for a single block, only the last one counts, and if there is a log
+ *   entry for a block beyond the last revoke, then that log entry still
+ *   gets replayed.
+ *
+ * We can get interactions between revokes and new log data within a
+ * single transaction:
+ *
+ * Block is revoked and then journaled:
+ *   The desired end result is the journaling of the new block, so we 
+ *   cancel the revoke before the transaction commits.
+ *
+ * Block is journaled and then revoked:
+ *   The revoke must take precedence over the write of the block, so we
+ *   need either to cancel the journal entry or to write the revoke
+ *   later in the log than the log block.  In this case, we choose the
+ *   latter: journaling a block cancels any revoke record for that block
+ *   in the current transaction, so any revoke for that block in the
+ *   transaction must have happened after the block was journaled and so
+ *   the revoke must take precedence.
+ *
+ * Block is revoked and then written as data: 
+ *   The data write is allowed to succeed, but the revoke is _not_
+ *   cancelled.  We still need to prevent old log records from
+ *   overwriting the new data.  We don't even need to clear the revoke
+ *   bit here.
+ *
+ * Revoke information on buffers is a tri-state value:
+ *
+ * RevokeValid clear:	no cached revoke status, need to look it up
+ * RevokeValid set, Revoked clear:
+ *			buffer has not been revoked, and cancel_revoke
+ *			need do nothing.
+ * RevokeValid set, Revoked set:
+ *			buffer has been revoked.  
+ */
+
+#ifndef __KERNEL__
+#include "jfs_user.h"
+#else
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/jbd.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/locks.h>
+#include <linux/list.h>
+#include <linux/smp_lock.h>
+#include <linux/init.h>
+#endif
+
+static kmem_cache_t *revoke_record_cache;
+static kmem_cache_t *revoke_table_cache;
+
+/* Each revoke record represents one single revoked block.  During
+   journal replay, this involves recording the transaction ID of the
+   last transaction to revoke this block. */
+
+struct jbd_revoke_record_s 
+{
+	struct list_head  hash;
+	tid_t		  sequence;	/* Used for recovery only */
+	unsigned long	  blocknr;	
+};
+
+
+/* The revoke table is just a simple hash table of revoke records. */
+struct jbd_revoke_table_s
+{
+	/* It is conceivable that we might want a larger hash table
+	 * for recovery.  Must be a power of two. */
+	int		  hash_size; 
+	int		  hash_shift; 
+	struct list_head *hash_table;
+};
+
+
+#ifdef __KERNEL__
+static void write_one_revoke_record(journal_t *, transaction_t *,
+				    struct journal_head **, int *,
+				    struct jbd_revoke_record_s *);
+static void flush_descriptor(journal_t *, struct journal_head *, int);
+#endif
+
+/* Utility functions to maintain the revoke table */
+
+/* Borrowed from buffer.c: this is a tried and tested block hash function */
+static inline int hash(journal_t *journal, unsigned long block)
+{
+	struct jbd_revoke_table_s *table = journal->j_revoke;
+	int hash_shift = table->hash_shift;
+	
+	return ((block << (hash_shift - 6)) ^
+		(block >> 13) ^
+		(block << (hash_shift - 12))) & (table->hash_size - 1);
+}
+
+int insert_revoke_hash(journal_t *journal, unsigned long blocknr, tid_t seq)
+{
+	struct list_head *hash_list;
+	struct jbd_revoke_record_s *record;
+
+repeat:
+	record = kmem_cache_alloc(revoke_record_cache, GFP_NOFS);
+	if (!record)
+		goto oom;
+
+	record->sequence = seq;
+	record->blocknr = blocknr;
+	hash_list = &journal->j_revoke->hash_table[hash(journal, blocknr)];
+	list_add(&record->hash, hash_list);
+	return 0;
+
+oom:
+	if (!journal_oom_retry)
+		return -ENOMEM;
+	jbd_debug(1, "ENOMEM in %s, retrying.\n", __FUNCTION__);
+	yield();
+	goto repeat;
+}
+
+/* Find a revoke record in the journal's hash table. */
+
+static struct jbd_revoke_record_s *find_revoke_record(journal_t *journal,
+						      unsigned long blocknr)
+{
+	struct list_head *hash_list;
+	struct jbd_revoke_record_s *record;
+	
+	hash_list = &journal->j_revoke->hash_table[hash(journal, blocknr)];
+
+	record = (struct jbd_revoke_record_s *) hash_list->next;
+	while (&(record->hash) != hash_list) {
+		if (record->blocknr == blocknr)
+			return record;
+		record = (struct jbd_revoke_record_s *) record->hash.next;
+	}
+	return NULL;
+}
+
+int __init journal_init_revoke_caches(void)
+{
+	revoke_record_cache = kmem_cache_create("revoke_record",
+					   sizeof(struct jbd_revoke_record_s),
+					   0, SLAB_HWCACHE_ALIGN, NULL, NULL);
+	if (revoke_record_cache == 0)
+		return -ENOMEM;
+
+	revoke_table_cache = kmem_cache_create("revoke_table",
+					   sizeof(struct jbd_revoke_table_s),
+					   0, 0, NULL, NULL);
+	if (revoke_table_cache == 0) {
+		kmem_cache_destroy(revoke_record_cache);
+		revoke_record_cache = NULL;
+		return -ENOMEM;
+	}
+	return 0;
+}	
+
+void journal_destroy_revoke_caches(void)
+{
+	kmem_cache_destroy(revoke_record_cache);
+	revoke_record_cache = 0;
+	kmem_cache_destroy(revoke_table_cache);
+	revoke_table_cache = 0;
+}
+
+/* Initialise the revoke table for a given journal to a given size. */
+
+int journal_init_revoke(journal_t *journal, int hash_size)
+{
+	int shift, tmp;
+	
+	J_ASSERT (journal->j_revoke == NULL);
+	
+	journal->j_revoke = kmem_cache_alloc(revoke_table_cache, GFP_KERNEL);
+	if (!journal->j_revoke)
+		return -ENOMEM;
+	
+	/* Check that the hash_size is a power of two */
+	J_ASSERT ((hash_size & (hash_size-1)) == 0);
+
+	journal->j_revoke->hash_size = hash_size;
+
+	shift = 0;
+	tmp = hash_size;
+	while((tmp >>= 1UL) != 0UL)
+		shift++;
+	journal->j_revoke->hash_shift = shift;
+
+	journal->j_revoke->hash_table =
+		kmalloc(hash_size * sizeof(struct list_head), GFP_KERNEL);
+	if (!journal->j_revoke->hash_table) {
+		kmem_cache_free(revoke_table_cache, journal->j_revoke);
+		journal->j_revoke = NULL;
+		return -ENOMEM;
+	}
+	
+	for (tmp = 0; tmp < hash_size; tmp++)
+		INIT_LIST_HEAD(&journal->j_revoke->hash_table[tmp]);
+	
+	return 0;
+}
+
+/* Destoy a journal's revoke table.  The table must already be empty! */
+
+void journal_destroy_revoke(journal_t *journal)
+{
+	struct jbd_revoke_table_s *table;
+	struct list_head *hash_list;
+	int i;
+	
+	table = journal->j_revoke;
+	if (!table)
+		return;
+	
+	for (i=0; i<table->hash_size; i++) {
+		hash_list = &table->hash_table[i];
+		J_ASSERT (list_empty(hash_list));
+	}
+	
+	kfree(table->hash_table);
+	kmem_cache_free(revoke_table_cache, table);
+	journal->j_revoke = NULL;
+}
+
+
+#ifdef __KERNEL__
+
+/* 
+ * journal_revoke: revoke a given buffer_head from the journal.  This
+ * prevents the block from being replayed during recovery if we take a
+ * crash after this current transaction commits.  Any subsequent
+ * metadata writes of the buffer in this transaction cancel the
+ * revoke.  
+ *
+ * Note that this call may block --- it is up to the caller to make
+ * sure that there are no further calls to journal_write_metadata
+ * before the revoke is complete.  In ext3, this implies calling the
+ * revoke before clearing the block bitmap when we are deleting
+ * metadata. 
+ *
+ * Revoke performs a journal_forget on any buffer_head passed in as a
+ * parameter, but does _not_ forget the buffer_head if the bh was only
+ * found implicitly. 
+ *
+ * bh_in may not be a journalled buffer - it may have come off
+ * the hash tables without an attached journal_head.
+ *
+ * If bh_in is non-zero, journal_revoke() will decrement its b_count
+ * by one.
+ */
+
+int journal_revoke(handle_t *handle, unsigned long blocknr, 
+		   struct buffer_head *bh_in)
+{
+	struct buffer_head *bh = NULL;
+	journal_t *journal;
+	kdev_t dev;
+	int err;
+
+	if (bh_in)
+		BUFFER_TRACE(bh_in, "enter");
+
+	journal = handle->h_transaction->t_journal;
+	if (!journal_set_features(journal, 0, 0, JFS_FEATURE_INCOMPAT_REVOKE)){
+		J_ASSERT (!"Cannot set revoke feature!");
+		return -EINVAL;
+	}
+
+	dev = journal->j_fs_dev;
+	bh = bh_in;
+
+	if (!bh) {
+		bh = get_hash_table(dev, blocknr, journal->j_blocksize);
+		if (bh)
+			BUFFER_TRACE(bh, "found on hash");
+	}
+#ifdef JBD_EXPENSIVE_CHECKING
+	else {
+		struct buffer_head *bh2;
+
+		/* If there is a different buffer_head lying around in
+		 * memory anywhere... */
+		bh2 = get_hash_table(dev, blocknr, journal->j_blocksize);
+		if (bh2) {
+			/* ... and it has RevokeValid status... */
+			if ((bh2 != bh) &&
+			    test_bit(BH_RevokeValid, &bh2->b_state))
+				/* ...then it better be revoked too,
+				 * since it's illegal to create a revoke
+				 * record against a buffer_head which is
+				 * not marked revoked --- that would
+				 * risk missing a subsequent revoke
+				 * cancel. */
+				J_ASSERT_BH(bh2, test_bit(BH_Revoked, &
+							  bh2->b_state));
+			__brelse(bh2);
+		}
+	}
+#endif
+
+	/* We really ought not ever to revoke twice in a row without
+           first having the revoke cancelled: it's illegal to free a
+           block twice without allocating it in between! */
+	if (bh) {
+		J_ASSERT_BH(bh, !test_bit(BH_Revoked, &bh->b_state));
+		set_bit(BH_Revoked, &bh->b_state);
+		set_bit(BH_RevokeValid, &bh->b_state);
+		if (bh_in) {
+			BUFFER_TRACE(bh_in, "call journal_forget");
+			journal_forget(handle, bh_in);
+		} else {
+			BUFFER_TRACE(bh, "call brelse");
+			__brelse(bh);
+		}
+	}
+
+	lock_journal(journal);
+	jbd_debug(2, "insert revoke for block %lu, bh_in=%p\n", blocknr, bh_in);
+	err = insert_revoke_hash(journal, blocknr,
+				handle->h_transaction->t_tid);
+	unlock_journal(journal);
+	BUFFER_TRACE(bh_in, "exit");
+	return err;
+}
+
+/*
+ * Cancel an outstanding revoke.  For use only internally by the
+ * journaling code (called from journal_get_write_access).
+ *
+ * We trust the BH_Revoked bit on the buffer if the buffer is already
+ * being journaled: if there is no revoke pending on the buffer, then we
+ * don't do anything here.
+ *
+ * This would break if it were possible for a buffer to be revoked and
+ * discarded, and then reallocated within the same transaction.  In such
+ * a case we would have lost the revoked bit, but when we arrived here
+ * the second time we would still have a pending revoke to cancel.  So,
+ * do not trust the Revoked bit on buffers unless RevokeValid is also
+ * set.
+ *
+ * The caller must have the journal locked.
+ */
+int journal_cancel_revoke(handle_t *handle, struct journal_head *jh)
+{
+	struct jbd_revoke_record_s *record;
+	journal_t *journal = handle->h_transaction->t_journal;
+	int need_cancel;
+	int did_revoke = 0;	/* akpm: debug */
+	struct buffer_head *bh = jh2bh(jh);
+	
+	jbd_debug(4, "journal_head %p, cancelling revoke\n", jh);
+
+	/* Is the existing Revoke bit valid?  If so, we trust it, and
+	 * only perform the full cancel if the revoke bit is set.  If
+	 * not, we can't trust the revoke bit, and we need to do the
+	 * full search for a revoke record. */
+	if (test_and_set_bit(BH_RevokeValid, &bh->b_state))
+		need_cancel = (test_and_clear_bit(BH_Revoked, &bh->b_state));
+	else {
+		need_cancel = 1;
+		clear_bit(BH_Revoked, &bh->b_state);
+	}
+
+	if (need_cancel) {
+		record = find_revoke_record(journal, bh->b_blocknr);
+		if (record) {
+			jbd_debug(4, "cancelled existing revoke on "
+				  "blocknr %lu\n", bh->b_blocknr);
+			list_del(&record->hash);
+			kmem_cache_free(revoke_record_cache, record);
+			did_revoke = 1;
+		}
+	}
+
+#ifdef JBD_EXPENSIVE_CHECKING
+	/* There better not be one left behind by now! */
+	record = find_revoke_record(journal, bh->b_blocknr);
+	J_ASSERT_JH(jh, record == NULL);
+#endif
+
+	/* Finally, have we just cleared revoke on an unhashed
+	 * buffer_head?  If so, we'd better make sure we clear the
+	 * revoked status on any hashed alias too, otherwise the revoke
+	 * state machine will get very upset later on. */
+	if (need_cancel && !bh->b_pprev) {
+		struct buffer_head *bh2;
+		bh2 = get_hash_table(bh->b_dev, bh->b_blocknr, bh->b_size);
+		if (bh2) {
+			clear_bit(BH_Revoked, &bh2->b_state);
+			__brelse(bh2);
+		}
+	}
+	
+	return did_revoke;
+}
+
+
+/*
+ * Write revoke records to the journal for all entries in the current
+ * revoke hash, deleting the entries as we go.
+ *
+ * Called with the journal lock held.
+ */
+
+void journal_write_revoke_records(journal_t *journal, 
+				  transaction_t *transaction)
+{
+	struct journal_head *descriptor;
+	struct jbd_revoke_record_s *record;
+	struct jbd_revoke_table_s *revoke;
+	struct list_head *hash_list;
+	int i, offset, count;
+
+	descriptor = NULL; 
+	offset = 0;
+	count = 0;
+	revoke = journal->j_revoke;
+	
+	for (i = 0; i < revoke->hash_size; i++) {
+		hash_list = &revoke->hash_table[i];
+
+		while (!list_empty(hash_list)) {
+			record = (struct jbd_revoke_record_s *) 
+				hash_list->next;
+			write_one_revoke_record(journal, transaction,
+						&descriptor, &offset, 
+						record);
+			count++;
+			list_del(&record->hash);
+			kmem_cache_free(revoke_record_cache, record);
+		}
+	}
+	if (descriptor) 
+		flush_descriptor(journal, descriptor, offset);
+	jbd_debug(1, "Wrote %d revoke records\n", count);
+}
+
+/* 
+ * Write out one revoke record.  We need to create a new descriptor
+ * block if the old one is full or if we have not already created one.  
+ */
+
+static void write_one_revoke_record(journal_t *journal, 
+				    transaction_t *transaction,
+				    struct journal_head **descriptorp, 
+				    int *offsetp,
+				    struct jbd_revoke_record_s *record)
+{
+	struct journal_head *descriptor;
+	int offset;
+	journal_header_t *header;
+
+	/* If we are already aborting, this all becomes a noop.  We
+           still need to go round the loop in
+           journal_write_revoke_records in order to free all of the
+           revoke records: only the IO to the journal is omitted. */
+	if (is_journal_aborted(journal))
+		return;
+
+	descriptor = *descriptorp;
+	offset = *offsetp;
+
+	/* Make sure we have a descriptor with space left for the record */
+	if (descriptor) {
+		if (offset == journal->j_blocksize) {
+			flush_descriptor(journal, descriptor, offset);
+			descriptor = NULL;
+		}
+	}
+	
+	if (!descriptor) {
+		descriptor = journal_get_descriptor_buffer(journal);
+		if (!descriptor)
+			return;
+		header = (journal_header_t *) &jh2bh(descriptor)->b_data[0];
+		header->h_magic     = htonl(JFS_MAGIC_NUMBER);
+		header->h_blocktype = htonl(JFS_REVOKE_BLOCK);
+		header->h_sequence  = htonl(transaction->t_tid);
+
+		/* Record it so that we can wait for IO completion later */
+		JBUFFER_TRACE(descriptor, "file as BJ_LogCtl");
+		journal_file_buffer(descriptor, transaction, BJ_LogCtl);
+
+		offset = sizeof(journal_revoke_header_t);
+		*descriptorp = descriptor;
+	}
+	
+	* ((unsigned int *)(&jh2bh(descriptor)->b_data[offset])) = 
+		htonl(record->blocknr);
+	offset += 4;
+	*offsetp = offset;
+}
+
+/* 
+ * Flush a revoke descriptor out to the journal.  If we are aborting,
+ * this is a noop; otherwise we are generating a buffer which needs to
+ * be waited for during commit, so it has to go onto the appropriate
+ * journal buffer list.
+ */
+
+static void flush_descriptor(journal_t *journal, 
+			     struct journal_head *descriptor, 
+			     int offset)
+{
+	journal_revoke_header_t *header;
+
+	if (is_journal_aborted(journal)) {
+		JBUFFER_TRACE(descriptor, "brelse");
+		unlock_buffer(jh2bh(descriptor));
+		__brelse(jh2bh(descriptor));
+		return;
+	}
+	
+	header = (journal_revoke_header_t *) jh2bh(descriptor)->b_data;
+	header->r_count = htonl(offset);
+	set_bit(BH_JWrite, &jh2bh(descriptor)->b_state);
+	{
+		struct buffer_head *bh = jh2bh(descriptor);
+		BUFFER_TRACE(bh, "write");
+		clear_bit(BH_Dirty, &bh->b_state);
+		bh->b_end_io = journal_end_buffer_io_sync;
+		submit_bh(WRITE, bh);
+	}
+}
+
+#endif
+
+/* 
+ * Revoke support for recovery.
+ *
+ * Recovery needs to be able to:
+ *
+ *  record all revoke records, including the tid of the latest instance
+ *  of each revoke in the journal
+ *
+ *  check whether a given block in a given transaction should be replayed
+ *  (ie. has not been revoked by a revoke record in that or a subsequent
+ *  transaction)
+ * 
+ *  empty the revoke table after recovery.
+ */
+
+/*
+ * First, setting revoke records.  We create a new revoke record for
+ * every block ever revoked in the log as we scan it for recovery, and
+ * we update the existing records if we find multiple revokes for a
+ * single block. 
+ */
+
+int journal_set_revoke(journal_t *journal, 
+		       unsigned long blocknr, 
+		       tid_t sequence)
+{
+	struct jbd_revoke_record_s *record;
+	
+	record = find_revoke_record(journal, blocknr);
+	if (record) {
+		/* If we have multiple occurences, only record the
+		 * latest sequence number in the hashed record */
+		if (tid_gt(sequence, record->sequence))
+			record->sequence = sequence;
+		return 0;
+	} 
+	return insert_revoke_hash(journal, blocknr, sequence);
+}
+
+/* 
+ * Test revoke records.  For a given block referenced in the log, has
+ * that block been revoked?  A revoke record with a given transaction
+ * sequence number revokes all blocks in that transaction and earlier
+ * ones, but later transactions still need replayed.
+ */
+
+int journal_test_revoke(journal_t *journal, 
+			unsigned long blocknr,
+			tid_t sequence)
+{
+	struct jbd_revoke_record_s *record;
+	
+	record = find_revoke_record(journal, blocknr);
+	if (!record)
+		return 0;
+	if (tid_gt(sequence, record->sequence))
+		return 0;
+	return 1;
+}
+
+/*
+ * Finally, once recovery is over, we need to clear the revoke table so
+ * that it can be reused by the running filesystem.
+ */
+
+void journal_clear_revoke(journal_t *journal)
+{
+	int i;
+	struct list_head *hash_list;
+	struct jbd_revoke_record_s *record;
+	struct jbd_revoke_table_s *revoke;
+	
+	revoke = journal->j_revoke;
+	
+	for (i = 0; i < revoke->hash_size; i++) {
+		hash_list = &revoke->hash_table[i];
+		while (!list_empty(hash_list)) {
+			record = (struct jbd_revoke_record_s*) hash_list->next;
+			list_del(&record->hash);
+			kmem_cache_free(revoke_record_cache, record);
+		}
+	}
+}
+
diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c
new file mode 100644
index 00000000000000..b2897f022be4a7
--- /dev/null
+++ b/fs/jbd/transaction.c
@@ -0,0 +1,2182 @@
+/*
+ * linux/fs/transaction.c
+ * 
+ * Written by Stephen C. Tweedie <sct@redhat.com>, 1998
+ *
+ * Copyright 1998 Red Hat corp --- All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * Generic filesystem transaction handling code; part of the ext2fs
+ * journaling system.  
+ *
+ * This file manages transactions (compound commits managed by the
+ * journaling code) and handles (individual atomic operations by the
+ * filesystem).
+ */
+
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/jbd.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/locks.h>
+#include <linux/timer.h>
+#include <linux/smp_lock.h>
+#include <linux/mm.h>
+
+extern spinlock_t journal_datalist_lock;
+
+/*
+ * get_transaction: obtain a new transaction_t object.
+ *
+ * Simply allocate and initialise a new transaction.  Create it in
+ * RUNNING state and add it to the current journal (which should not
+ * have an existing running transaction: we only make a new transaction
+ * once we have started to commit the old one).
+ *
+ * Preconditions:
+ *	The journal MUST be locked.  We don't perform atomic mallocs on the
+ *	new transaction	and we can't block without protecting against other
+ *	processes trying to touch the journal while it is in transition.
+ */
+
+static transaction_t * get_transaction (journal_t * journal, int is_try)
+{
+	transaction_t * transaction;
+
+	transaction = jbd_kmalloc (sizeof (transaction_t), GFP_NOFS);
+	if (!transaction)
+		return NULL;
+	
+	memset (transaction, 0, sizeof (transaction_t));
+	
+	transaction->t_journal = journal;
+	transaction->t_state = T_RUNNING;
+	transaction->t_tid = journal->j_transaction_sequence++;
+	transaction->t_expires = jiffies + journal->j_commit_interval;
+	INIT_LIST_HEAD(&transaction->t_jcb);
+
+	if (journal->j_commit_interval) {
+		/* Set up the commit timer for the new transaction. */
+		J_ASSERT (!journal->j_commit_timer_active);
+		journal->j_commit_timer_active = 1;
+		journal->j_commit_timer->expires = transaction->t_expires;
+		add_timer(journal->j_commit_timer);
+	}
+	
+	J_ASSERT (journal->j_running_transaction == NULL);
+	journal->j_running_transaction = transaction;
+
+	return transaction;
+}
+
+/*
+ * Handle management.
+ *
+ * A handle_t is an object which represents a single atomic update to a
+ * filesystem, and which tracks all of the modifications which form part
+ * of that one update.
+ */
+
+/*
+ * start_this_handle: Given a handle, deal with any locking or stalling
+ * needed to make sure that there is enough journal space for the handle
+ * to begin.  Attach the handle to a transaction and set up the
+ * transaction's buffer credits.  
+ */
+
+static int start_this_handle(journal_t *journal, handle_t *handle)
+{
+	transaction_t *transaction;
+	int needed;
+	int nblocks = handle->h_buffer_credits;
+
+	if (nblocks > journal->j_max_transaction_buffers) {
+		jbd_debug(1, "JBD: %s wants too many credits (%d > %d)\n",
+		       current->comm, nblocks,
+		       journal->j_max_transaction_buffers);
+		return -ENOSPC;
+	}
+
+	jbd_debug(3, "New handle %p going live.\n", handle);
+
+repeat:
+
+	lock_journal(journal);
+
+repeat_locked:
+
+	if (is_journal_aborted(journal) ||
+	    (journal->j_errno != 0 && !(journal->j_flags & JFS_ACK_ERR))) {
+		unlock_journal(journal);
+		return -EROFS; 
+	}
+
+	/* Wait on the journal's transaction barrier if necessary */
+	if (journal->j_barrier_count) {
+		unlock_journal(journal);
+		sleep_on(&journal->j_wait_transaction_locked);
+		goto repeat;
+	}
+	
+	if (!journal->j_running_transaction)
+		get_transaction(journal, 0);
+	/* @@@ Error? */
+	J_ASSERT(journal->j_running_transaction);
+	
+	transaction = journal->j_running_transaction;
+
+	/* If the current transaction is locked down for commit, wait
+	 * for the lock to be released. */
+
+	if (transaction->t_state == T_LOCKED) {
+		unlock_journal(journal);
+		jbd_debug(3, "Handle %p stalling...\n", handle);
+		sleep_on(&journal->j_wait_transaction_locked);
+		goto repeat;
+	}
+	
+	/* If there is not enough space left in the log to write all
+	 * potential buffers requested by this operation, we need to
+	 * stall pending a log checkpoint to free some more log
+	 * space. */
+
+	needed = transaction->t_outstanding_credits + nblocks;
+
+	if (needed > journal->j_max_transaction_buffers) {
+		/* If the current transaction is already too large, then
+		 * start to commit it: we can then go back and attach
+		 * this handle to a new transaction. */
+		
+		jbd_debug(2, "Handle %p starting new commit...\n", handle);
+		log_start_commit(journal, transaction);
+		unlock_journal(journal);
+		sleep_on(&journal->j_wait_transaction_locked);
+		lock_journal(journal);
+		goto repeat_locked;
+	}
+
+	/* 
+	 * The commit code assumes that it can get enough log space
+	 * without forcing a checkpoint.  This is *critical* for
+	 * correctness: a checkpoint of a buffer which is also
+	 * associated with a committing transaction creates a deadlock,
+	 * so commit simply cannot force through checkpoints.
+	 *
+	 * We must therefore ensure the necessary space in the journal
+	 * *before* starting to dirty potentially checkpointed buffers
+	 * in the new transaction. 
+	 *
+	 * The worst part is, any transaction currently committing can
+	 * reduce the free space arbitrarily.  Be careful to account for
+	 * those buffers when checkpointing.
+	 */
+
+	/*
+	 * @@@ AKPM: This seems rather over-defensive.  We're giving commit
+	 * a _lot_ of headroom: 1/4 of the journal plus the size of
+	 * the committing transaction.  Really, we only need to give it
+	 * committing_transaction->t_outstanding_credits plus "enough" for
+	 * the log control blocks.
+	 * Also, this test is inconsitent with the matching one in
+	 * journal_extend().
+	 */
+	needed = journal->j_max_transaction_buffers;
+	if (journal->j_committing_transaction) 
+		needed += journal->j_committing_transaction->
+					t_outstanding_credits;
+	
+	if (log_space_left(journal) < needed) {
+		jbd_debug(2, "Handle %p waiting for checkpoint...\n", handle);
+		log_wait_for_space(journal, needed);
+		goto repeat_locked;
+	}
+
+	/* OK, account for the buffers that this operation expects to
+	 * use and add the handle to the running transaction. */
+
+	handle->h_transaction = transaction;
+	transaction->t_outstanding_credits += nblocks;
+	transaction->t_updates++;
+	transaction->t_handle_count++;
+	jbd_debug(4, "Handle %p given %d credits (total %d, free %d)\n",
+		  handle, nblocks, transaction->t_outstanding_credits,
+		  log_space_left(journal));
+
+	unlock_journal(journal);
+	
+	return 0;
+}
+
+/* Allocate a new handle.  This should probably be in a slab... */
+static handle_t *new_handle(int nblocks)
+{
+	handle_t *handle = jbd_kmalloc(sizeof (handle_t), GFP_NOFS);
+	if (!handle)
+		return NULL;
+	memset(handle, 0, sizeof (handle_t));
+	handle->h_buffer_credits = nblocks;
+	handle->h_ref = 1;
+	INIT_LIST_HEAD(&handle->h_jcb);
+
+	return handle;
+}
+
+/**
+ * handle_t *journal_start() - Obtain a new handle.  
+ * @journal: Journal to start transaction on.
+ * @nblocks: number of block buffer we might modify
+ *
+ * We make sure that the transaction can guarantee at least nblocks of
+ * modified buffers in the log.  We block until the log can guarantee
+ * that much space.  
+ *
+ * This function is visible to journal users (like ext3fs), so is not
+ * called with the journal already locked.
+ *
+ * Return a pointer to a newly allocated handle, or NULL on failure
+ */
+handle_t *journal_start(journal_t *journal, int nblocks)
+{
+	handle_t *handle = journal_current_handle();
+	int err;
+	
+	if (!journal)
+		return ERR_PTR(-EROFS);
+
+	if (handle) {
+		J_ASSERT(handle->h_transaction->t_journal == journal);
+		handle->h_ref++;
+		return handle;
+	}
+
+	handle = new_handle(nblocks);
+	if (!handle)
+		return ERR_PTR(-ENOMEM);
+
+	current->journal_info = handle;
+
+	err = start_this_handle(journal, handle);
+	if (err < 0) {
+		kfree(handle);
+		current->journal_info = NULL;
+		return ERR_PTR(err);
+	}
+
+	return handle;
+}
+
+/*
+ * Return zero on success
+ */
+static int try_start_this_handle(journal_t *journal, handle_t *handle)
+{
+	transaction_t *transaction;
+	int needed;
+	int nblocks = handle->h_buffer_credits;
+	int ret = 0;
+
+	jbd_debug(3, "New handle %p maybe going live.\n", handle);
+
+	lock_journal(journal);
+
+	if (is_journal_aborted(journal) ||
+	    (journal->j_errno != 0 && !(journal->j_flags & JFS_ACK_ERR))) {
+		ret = -EROFS;
+		goto fail_unlock;
+	}
+
+	if (journal->j_barrier_count)
+		goto fail_unlock;
+
+	if (!journal->j_running_transaction && get_transaction(journal, 1) == 0)
+		goto fail_unlock;
+	
+	transaction = journal->j_running_transaction;
+	if (transaction->t_state == T_LOCKED)
+		goto fail_unlock;
+	
+	needed = transaction->t_outstanding_credits + nblocks;
+	/* We could run log_start_commit here */
+	if (needed > journal->j_max_transaction_buffers)
+		goto fail_unlock;
+
+	needed = journal->j_max_transaction_buffers;
+	if (journal->j_committing_transaction) 
+		needed += journal->j_committing_transaction->
+						t_outstanding_credits;
+	
+	if (log_space_left(journal) < needed)
+		goto fail_unlock;
+
+	handle->h_transaction = transaction;
+	transaction->t_outstanding_credits += nblocks;
+	transaction->t_updates++;
+	jbd_debug(4, "Handle %p given %d credits (total %d, free %d)\n",
+		  handle, nblocks, transaction->t_outstanding_credits,
+		  log_space_left(journal));
+	unlock_journal(journal);
+	return 0;
+
+fail_unlock:
+	unlock_journal(journal);
+	if (ret >= 0)
+		ret = -1;
+	return ret;
+}
+
+/**
+ * handle_t *journal_try_start() - Don't block, but try and get a handle
+ * @journal: Journal to start transaction on.
+ * @nblocks: number of block buffer we might modify
+ * 
+ * Try to start a handle, but non-blockingly.  If we weren't able
+ * to, return an ERR_PTR value.
+ */
+handle_t *journal_try_start(journal_t *journal, int nblocks)
+{
+	handle_t *handle = journal_current_handle();
+	int err;
+	
+	if (!journal)
+		return ERR_PTR(-EROFS);
+
+	if (handle) {
+		jbd_debug(4, "h_ref %d -> %d\n",
+				handle->h_ref,
+				handle->h_ref + 1);
+		J_ASSERT(handle->h_transaction->t_journal == journal);
+		if (is_handle_aborted(handle))
+			return ERR_PTR(-EIO);
+		handle->h_ref++;
+		return handle;
+	} else {
+		jbd_debug(4, "no current transaction\n");
+	}
+	
+	if (is_journal_aborted(journal))
+		return ERR_PTR(-EIO);
+
+	handle = new_handle(nblocks);
+	if (!handle)
+		return ERR_PTR(-ENOMEM);
+
+	current->journal_info = handle;
+
+	err = try_start_this_handle(journal, handle);
+	if (err < 0) {
+		kfree(handle);
+		current->journal_info = NULL;
+		return ERR_PTR(err);
+	}
+
+	return handle;
+}
+
+/**
+ * int journal_extend() - extend buffer credits.
+ * @handle:  handle to 'extend'
+ * @nblocks: nr blocks to try to extend by.
+ * 
+ * Some transactions, such as large extends and truncates, can be done
+ * atomically all at once or in several stages.  The operation requests
+ * a credit for a number of buffer modications in advance, but can
+ * extend its credit if it needs more.  
+ *
+ * journal_extend tries to give the running handle more buffer credits.
+ * It does not guarantee that allocation - this is a best-effort only.
+ * The calling process MUST be able to deal cleanly with a failure to
+ * extend here.
+ *
+ * Return 0 on success, non-zero on failure.
+ *
+ * return code < 0 implies an error
+ * return code > 0 implies normal transaction-full status.
+ */
+int journal_extend (handle_t *handle, int nblocks)
+{
+	transaction_t *transaction = handle->h_transaction;
+	journal_t *journal = transaction->t_journal;
+	int result;
+	int wanted;
+
+	lock_journal (journal);
+
+	result = -EIO;
+	if (is_handle_aborted(handle))
+		goto error_out;
+
+	result = 1;
+	       
+	/* Don't extend a locked-down transaction! */
+	if (handle->h_transaction->t_state != T_RUNNING) {
+		jbd_debug(3, "denied handle %p %d blocks: "
+			  "transaction not running\n", handle, nblocks);
+		goto error_out;
+	}
+	
+	wanted = transaction->t_outstanding_credits + nblocks;
+	
+	if (wanted > journal->j_max_transaction_buffers) {
+		jbd_debug(3, "denied handle %p %d blocks: "
+			  "transaction too large\n", handle, nblocks);
+		goto error_out;
+	}
+
+	if (wanted > log_space_left(journal)) {
+		jbd_debug(3, "denied handle %p %d blocks: "
+			  "insufficient log space\n", handle, nblocks);
+		goto error_out;
+	}
+	
+	handle->h_buffer_credits += nblocks;
+	transaction->t_outstanding_credits += nblocks;
+	result = 0;
+
+	jbd_debug(3, "extended handle %p by %d\n", handle, nblocks);
+	
+error_out:
+	unlock_journal (journal);
+	return result;
+}
+
+
+/**
+ * int journal_restart() - restart a handle .
+ * @handle:  handle to restart
+ * @nblocks: nr credits requested
+ * 
+ * Restart a handle for a multi-transaction filesystem
+ * operation.
+ *
+ * If the journal_extend() call above fails to grant new buffer credits
+ * to a running handle, a call to journal_restart will commit the
+ * handle's transaction so far and reattach the handle to a new
+ * transaction capabable of guaranteeing the requested number of
+ * credits.
+ */
+
+int journal_restart(handle_t *handle, int nblocks)
+{
+	transaction_t *transaction = handle->h_transaction;
+	journal_t *journal = transaction->t_journal;
+	int ret;
+
+	/* If we've had an abort of any type, don't even think about
+	 * actually doing the restart! */
+	if (is_handle_aborted(handle))
+		return 0;
+	
+	/* First unlink the handle from its current transaction, and
+	 * start the commit on that. */
+	
+	J_ASSERT (transaction->t_updates > 0);
+	J_ASSERT (journal_current_handle() == handle);
+
+	transaction->t_outstanding_credits -= handle->h_buffer_credits;
+	transaction->t_updates--;
+
+	if (!transaction->t_updates)
+		wake_up(&journal->j_wait_updates);
+
+	jbd_debug(2, "restarting handle %p\n", handle);
+	log_start_commit(journal, transaction);
+
+	handle->h_buffer_credits = nblocks;
+	ret = start_this_handle(journal, handle);
+	return ret;
+}
+
+
+/**
+ * void journal_lock_updates () - establish a transaction barrier.
+ * @journal:  Journal to establish a barrier on.
+ *
+ * This locks out any further updates from being started, and blocks
+ * until all existing updates have completed, returning only once the
+ * journal is in a quiescent state with no updates running.
+ *
+ * The journal lock should not be held on entry.
+ */
+void journal_lock_updates (journal_t *journal)
+{
+	lock_journal(journal);
+	++journal->j_barrier_count;
+
+	/* Wait until there are no running updates */
+	while (1) {
+		transaction_t *transaction = journal->j_running_transaction;
+		if (!transaction)
+			break;
+		if (!transaction->t_updates)
+			break;
+		
+		unlock_journal(journal);
+		sleep_on(&journal->j_wait_updates);
+		lock_journal(journal);
+	}
+
+	unlock_journal(journal);
+
+	/* We have now established a barrier against other normal
+	 * updates, but we also need to barrier against other
+	 * journal_lock_updates() calls to make sure that we serialise
+	 * special journal-locked operations too. */
+	down(&journal->j_barrier);
+}
+
+/**
+ * void journal_unlock_updates (journal_t* journal) - release barrier
+ * @journal:  Journal to release the barrier on.
+ * 
+ * Release a transaction barrier obtained with journal_lock_updates().
+ *
+ * Should be called without the journal lock held.
+ */
+void journal_unlock_updates (journal_t *journal)
+{
+	lock_journal(journal);
+
+	J_ASSERT (journal->j_barrier_count != 0);
+	
+	up(&journal->j_barrier);
+	--journal->j_barrier_count;
+	wake_up(&journal->j_wait_transaction_locked);
+	unlock_journal(journal);
+}
+
+/*
+ * if the buffer is already part of the current transaction, then there
+ * is nothing we need to do.  if it is already part of a prior
+ * transaction which we are still committing to disk, then we need to
+ * make sure that we do not overwrite the old copy: we do copy-out to
+ * preserve the copy going to disk.  we also account the buffer against
+ * the handle's metadata buffer credits (unless the buffer is already
+ * part of the transaction, that is).
+ */
+static int
+do_get_write_access(handle_t *handle, struct journal_head *jh, int force_copy) 
+{
+	struct buffer_head *bh;
+	transaction_t *transaction = handle->h_transaction;
+	journal_t *journal = transaction->t_journal;
+	int error;
+	char *frozen_buffer = NULL;
+	int need_copy = 0;
+	int locked;
+	
+	jbd_debug(5, "buffer_head %p, force_copy %d\n", jh, force_copy);
+
+	JBUFFER_TRACE(jh, "entry");
+repeat:
+	bh = jh2bh(jh);
+
+	/* @@@ Need to check for errors here at some point. */
+
+	/*
+	 * AKPM: we have replaced all the lock_journal_bh_wait() stuff with a
+	 * simple lock_journal().  This code here will care for locked buffers.
+	 */
+	locked = test_and_set_bit(BH_Lock, &bh->b_state);
+	if (locked) {
+		/* We can't reliably test the buffer state if we found
+		 * it already locked, so just wait for the lock and
+		 * retry. */
+		unlock_journal(journal);
+		__wait_on_buffer(bh);
+		lock_journal(journal);
+		goto repeat;
+	}
+	
+	/* We now hold the buffer lock so it is safe to query the buffer
+	 * state.  Is the buffer dirty? 
+	 * 
+	 * If so, there are two possibilities.  The buffer may be
+	 * non-journaled, and undergoing a quite legitimate writeback.
+	 * Otherwise, it is journaled, and we don't expect dirty buffers
+	 * in that state (the buffers should be marked JBD_Dirty
+	 * instead.)  So either the IO is being done under our own
+	 * control and this is a bug, or it's a third party IO such as
+	 * dump(8) (which may leave the buffer scheduled for read ---
+	 * ie. locked but not dirty) or tune2fs (which may actually have
+	 * the buffer dirtied, ugh.)  */
+
+	if (buffer_dirty(bh)) {
+		spin_lock(&journal_datalist_lock);
+		/* First question: is this buffer already part of the
+		 * current transaction or the existing committing
+		 * transaction? */
+		if (jh->b_transaction) {
+			J_ASSERT_JH(jh, jh->b_transaction == transaction || 
+				    jh->b_transaction == journal->j_committing_transaction);
+			if (jh->b_next_transaction)
+				J_ASSERT_JH(jh, jh->b_next_transaction == transaction);
+			JBUFFER_TRACE(jh, "Unexpected dirty buffer");
+			jbd_unexpected_dirty_buffer(jh);
+		}
+		spin_unlock(&journal_datalist_lock);
+	}
+
+	unlock_buffer(bh);
+
+	error = -EROFS;
+	if (is_handle_aborted(handle)) 
+		goto out_unlocked;
+	error = 0;
+
+	spin_lock(&journal_datalist_lock);
+
+	/* The buffer is already part of this transaction if
+	 * b_transaction or b_next_transaction points to it. */
+
+	if (jh->b_transaction == transaction ||
+	    jh->b_next_transaction == transaction)
+		goto done_locked;
+
+	/* If there is already a copy-out version of this buffer, then
+	 * we don't need to make another one. */
+
+	if (jh->b_frozen_data) {
+		JBUFFER_TRACE(jh, "has frozen data");
+		J_ASSERT_JH(jh, jh->b_next_transaction == NULL);
+		jh->b_next_transaction = transaction;
+
+		J_ASSERT_JH(jh, handle->h_buffer_credits > 0);
+		handle->h_buffer_credits--;
+		goto done_locked;
+	}
+	
+	/* Is there data here we need to preserve? */
+
+	if (jh->b_transaction && jh->b_transaction != transaction) {
+		JBUFFER_TRACE(jh, "owned by older transaction");
+		J_ASSERT_JH(jh, jh->b_next_transaction == NULL);
+		J_ASSERT_JH(jh, jh->b_transaction ==
+					journal->j_committing_transaction);
+
+		/* There is one case we have to be very careful about.
+		 * If the committing transaction is currently writing
+		 * this buffer out to disk and has NOT made a copy-out,
+		 * then we cannot modify the buffer contents at all
+		 * right now.  The essence of copy-out is that it is the
+		 * extra copy, not the primary copy, which gets
+		 * journaled.  If the primary copy is already going to
+		 * disk then we cannot do copy-out here. */
+
+		if (jh->b_jlist == BJ_Shadow) {
+			JBUFFER_TRACE(jh, "on shadow: sleep");
+			spin_unlock(&journal_datalist_lock);
+			unlock_journal(journal);
+			/* commit wakes up all shadow buffers after IO */
+			wait_event(jh2bh(jh)->b_wait,
+						jh->b_jlist != BJ_Shadow);
+			lock_journal(journal);
+			goto repeat;
+		}
+			
+		/* Only do the copy if the currently-owning transaction
+		 * still needs it.  If it is on the Forget list, the
+		 * committing transaction is past that stage.  The
+		 * buffer had better remain locked during the kmalloc,
+		 * but that should be true --- we hold the journal lock
+		 * still and the buffer is already on the BUF_JOURNAL
+		 * list so won't be flushed. 
+		 *
+		 * Subtle point, though: if this is a get_undo_access,
+		 * then we will be relying on the frozen_data to contain
+		 * the new value of the committed_data record after the
+		 * transaction, so we HAVE to force the frozen_data copy
+		 * in that case. */
+
+		if (jh->b_jlist != BJ_Forget || force_copy) {
+			JBUFFER_TRACE(jh, "generate frozen data");
+			if (!frozen_buffer) {
+				JBUFFER_TRACE(jh, "allocate memory for buffer");
+				spin_unlock(&journal_datalist_lock);
+				unlock_journal(journal);
+				frozen_buffer = jbd_kmalloc(jh2bh(jh)->b_size,
+							    GFP_NOFS);
+				lock_journal(journal);
+				if (!frozen_buffer) {
+					printk(KERN_EMERG
+						"%s: OOM for frozen_buffer\n",
+						__FUNCTION__);
+					JBUFFER_TRACE(jh, "oom!");
+					error = -ENOMEM;
+					spin_lock(&journal_datalist_lock);
+					goto done_locked;
+				}
+				goto repeat;
+			}
+
+			jh->b_frozen_data = frozen_buffer;
+			frozen_buffer = NULL;
+			need_copy = 1;
+		}
+		jh->b_next_transaction = transaction;
+	}
+
+	J_ASSERT(handle->h_buffer_credits > 0);
+	handle->h_buffer_credits--;
+
+	/* Finally, if the buffer is not journaled right now, we need to
+	 * make sure it doesn't get written to disk before the caller
+	 * actually commits the new data. */
+
+	if (!jh->b_transaction) {
+		JBUFFER_TRACE(jh, "no transaction");
+		J_ASSERT_JH(jh, !jh->b_next_transaction);
+		jh->b_transaction = transaction;
+		JBUFFER_TRACE(jh, "file as BJ_Reserved");
+		__journal_file_buffer(jh, transaction, BJ_Reserved);
+	}
+	
+done_locked:
+	spin_unlock(&journal_datalist_lock);
+	if (need_copy) {
+		struct page *page;
+		int offset;
+		char *source;
+
+		J_EXPECT_JH(jh, buffer_uptodate(jh2bh(jh)),
+			    "Possible IO failure.\n");
+		page = jh2bh(jh)->b_page;
+		offset = ((unsigned long) jh2bh(jh)->b_data) & ~PAGE_MASK;
+		source = kmap(page);
+		memcpy(jh->b_frozen_data, source+offset, jh2bh(jh)->b_size);
+		kunmap(page);
+	}
+	
+
+	/* If we are about to journal a buffer, then any revoke pending
+           on it is no longer valid. */
+	journal_cancel_revoke(handle, jh);
+
+out_unlocked:
+	if (frozen_buffer)
+		kfree(frozen_buffer);
+
+	JBUFFER_TRACE(jh, "exit");
+	return error;
+}
+
+/**
+ * int journal_get_write_access() - notify intent to modify a buffer for metadata (not data) update.
+ * @handle: transaction to add buffer modifications to
+ * @bh:     bh to be used for metadata writes
+ *
+ * Returns an error code or 0 on success.
+ *
+ * In full data journalling mode the buffer may be of type BJ_AsyncData,
+ * because we're write()ing a buffer which is also part of a shared mapping.
+ */
+
+int journal_get_write_access (handle_t *handle, struct buffer_head *bh) 
+{
+	transaction_t *transaction = handle->h_transaction;
+	journal_t *journal = transaction->t_journal;
+	struct journal_head *jh = journal_add_journal_head(bh);
+	int rc;
+
+	/* We do not want to get caught playing with fields which the
+	 * log thread also manipulates.  Make sure that the buffer
+	 * completes any outstanding IO before proceeding. */
+	lock_journal(journal);
+	rc = do_get_write_access(handle, jh, 0);
+	journal_unlock_journal_head(jh);
+	unlock_journal(journal);
+	return rc;
+}
+
+
+/*
+ * When the user wants to journal a newly created buffer_head
+ * (ie. getblk() returned a new buffer and we are going to populate it
+ * manually rather than reading off disk), then we need to keep the
+ * buffer_head locked until it has been completely filled with new
+ * data.  In this case, we should be able to make the assertion that
+ * the bh is not already part of an existing transaction.  
+ * 
+ * The buffer should already be locked by the caller by this point.
+ * There is no lock ranking violation: it was a newly created,
+ * unlocked buffer beforehand. */
+
+/**
+ * int journal_get_create_access () - notify intent to use newly created bh
+ * @handle: ransaction to new buffer to
+ * @bh: new buffer.
+ *
+ * Call this if you create a new bh.
+ */
+int journal_get_create_access (handle_t *handle, struct buffer_head *bh) 
+{
+	transaction_t *transaction = handle->h_transaction;
+	journal_t *journal = transaction->t_journal;
+	struct journal_head *jh = journal_add_journal_head(bh);
+	int err;
+	
+	jbd_debug(5, "journal_head %p\n", jh);
+	lock_journal(journal);
+	err = -EROFS;
+	if (is_handle_aborted(handle))
+		goto out;
+	err = 0;
+	
+	JBUFFER_TRACE(jh, "entry");
+	/* The buffer may already belong to this transaction due to
+	 * pre-zeroing in the filesystem's new_block code.  It may also
+	 * be on the previous, committing transaction's lists, but it
+	 * HAS to be in Forget state in that case: the transaction must
+	 * have deleted the buffer for it to be reused here. */
+	J_ASSERT_JH(jh, (jh->b_transaction == transaction ||
+			 jh->b_transaction == NULL ||
+			 (jh->b_transaction == journal->j_committing_transaction &&
+			  jh->b_jlist == BJ_Forget)));
+
+	J_ASSERT_JH(jh, jh->b_next_transaction == NULL);
+	J_ASSERT_JH(jh, buffer_locked(jh2bh(jh)));
+
+	J_ASSERT_JH(jh, handle->h_buffer_credits > 0);
+	handle->h_buffer_credits--;
+
+	spin_lock(&journal_datalist_lock);
+	if (jh->b_transaction == NULL) {
+		jh->b_transaction = transaction;
+		JBUFFER_TRACE(jh, "file as BJ_Reserved");
+		__journal_file_buffer(jh, transaction, BJ_Reserved);
+		JBUFFER_TRACE(jh, "refile");
+		refile_buffer(jh2bh(jh));
+	} else if (jh->b_transaction == journal->j_committing_transaction) {
+		JBUFFER_TRACE(jh, "set next transaction");
+		jh->b_next_transaction = transaction;
+	}
+	spin_unlock(&journal_datalist_lock);
+
+	/*
+	 * akpm: I added this.  ext3_alloc_branch can pick up new indirect
+	 * blocks which contain freed but then revoked metadata.  We need
+	 * to cancel the revoke in case we end up freeing it yet again
+	 * and the reallocating as data - this would cause a second revoke,
+	 * which hits an assertion error.
+	 */
+	JBUFFER_TRACE(jh, "cancelling revoke");
+	journal_cancel_revoke(handle, jh);
+	journal_unlock_journal_head(jh);
+out:
+	unlock_journal(journal);
+	return err;
+}
+
+
+
+/**
+ * int journal_get_undo_access() -  Notify intent to modify metadata with non-rewindable consequences
+ * @handle: transaction
+ * @bh: buffer to undo
+ * 
+ * Sometimes there is a need to distinguish between metadata which has
+ * been committed to disk and that which has not.  The ext3fs code uses
+ * this for freeing and allocating space, we have to make sure that we
+ * do not reuse freed space until the deallocation has been committed,
+ * since if we overwrote that space we would make the delete
+ * un-rewindable in case of a crash.
+ * 
+ * To deal with that, journal_get_undo_access requests write access to a
+ * buffer for parts of non-rewindable operations such as delete
+ * operations on the bitmaps.  The journaling code must keep a copy of
+ * the buffer's contents prior to the undo_access call until such time
+ * as we know that the buffer has definitely been committed to disk.
+ * 
+ * We never need to know which transaction the committed data is part
+ * of, buffers touched here are guaranteed to be dirtied later and so
+ * will be committed to a new transaction in due course, at which point
+ * we can discard the old committed data pointer.
+ *
+ * Returns error number or 0 on success.  
+ */
+int journal_get_undo_access (handle_t *handle, struct buffer_head *bh)
+{
+	journal_t *journal = handle->h_transaction->t_journal;
+	int err;
+	struct journal_head *jh = journal_add_journal_head(bh);
+
+	JBUFFER_TRACE(jh, "entry");
+	lock_journal(journal);
+
+	/* Do this first --- it can drop the journal lock, so we want to
+	 * make sure that obtaining the committed_data is done
+	 * atomically wrt. completion of any outstanding commits. */
+	err = do_get_write_access (handle, jh, 1);
+	if (err)
+		goto out;
+	
+	if (!jh->b_committed_data) {
+		/* Copy out the current buffer contents into the
+		 * preserved, committed copy. */
+		JBUFFER_TRACE(jh, "generate b_committed data");
+		jh->b_committed_data = jbd_kmalloc(jh2bh(jh)->b_size, 
+						   GFP_NOFS);
+		if (!jh->b_committed_data) {
+			printk(KERN_EMERG "%s: No memory for committed data!\n",
+				__FUNCTION__);
+			err = -ENOMEM;
+			goto out;
+		}
+		
+		memcpy (jh->b_committed_data, jh2bh(jh)->b_data,
+				jh2bh(jh)->b_size);
+	}
+
+out:
+	if (!err)
+		J_ASSERT_JH(jh, jh->b_committed_data);
+	journal_unlock_journal_head(jh);
+	unlock_journal(journal);
+	return err;
+}
+
+/** 
+ * int journal_dirty_data() -  mark a buffer as containing dirty data which needs to be flushed before we can commit the current transaction.  
+ * @handle: transaction
+ * @bh: bufferhead to mark
+ * @async: flag
+ * 
+ * The buffer is placed on the transaction's data list and is marked as
+ * belonging to the transaction.
+ *
+ * If `async' is set then the writebask will be initiated by the caller
+ * using submit_bh -> end_buffer_io_async.  We put the buffer onto
+ * t_async_datalist.
+ * 
+ * Returns error number or 0 on success.  
+ */
+int journal_dirty_data (handle_t *handle, struct buffer_head *bh, int async)
+{
+/*
+ * journal_dirty_data() can be called via page_launder->ext3_writepage
+ * by kswapd.  So it cannot block.  Happily, there's nothing here
+ * which needs lock_journal if `async' is set.
+ *
+ * When the buffer is on the current transaction we freely move it
+ * between BJ_AsyncData and BJ_SyncData according to who tried to
+ * change its state last.
+ */
+	journal_t *journal = handle->h_transaction->t_journal;
+	int need_brelse = 0;
+	int wanted_jlist = async ? BJ_AsyncData : BJ_SyncData;
+	struct journal_head *jh;
+
+	if (is_handle_aborted(handle))
+		return 0;
+	
+	jh = journal_add_journal_head(bh);
+	JBUFFER_TRACE(jh, "entry");
+
+	/*
+	 * The buffer could *already* be dirty.  Writeout can start
+	 * at any time.
+	 */
+	jbd_debug(4, "jh: %p, tid:%d\n", jh, handle->h_transaction->t_tid);
+
+	/*
+	 * What if the buffer is already part of a running transaction?
+	 * 
+	 * There are two cases:
+	 * 1) It is part of the current running transaction.  Refile it,
+	 *    just in case we have allocated it as metadata, deallocated
+	 *    it, then reallocated it as data. 
+	 * 2) It is part of the previous, still-committing transaction.
+	 *    If all we want to do is to guarantee that the buffer will be
+	 *    written to disk before this new transaction commits, then
+	 *    being sure that the *previous* transaction has this same 
+	 *    property is sufficient for us!  Just leave it on its old
+	 *    transaction.
+	 *
+	 * In case (2), the buffer must not already exist as metadata
+	 * --- that would violate write ordering (a transaction is free
+	 * to write its data at any point, even before the previous
+	 * committing transaction has committed).  The caller must
+	 * never, ever allow this to happen: there's nothing we can do
+	 * about it in this layer.
+	 */
+	spin_lock(&journal_datalist_lock);
+	if (jh->b_transaction) {
+		JBUFFER_TRACE(jh, "has transaction");
+		if (jh->b_transaction != handle->h_transaction) {
+			JBUFFER_TRACE(jh, "belongs to older transaction");
+			J_ASSERT_JH(jh, jh->b_transaction ==
+					journal->j_committing_transaction);
+
+			/* @@@ IS THIS TRUE  ? */
+			/*
+			 * Not any more.  Scenario: someone does a write()
+			 * in data=journal mode.  The buffer's transaction has
+			 * moved into commit.  Then someone does another
+			 * write() to the file.  We do the frozen data copyout
+			 * and set b_next_transaction to point to j_running_t.
+			 * And while we're in that state, someone does a
+			 * writepage() in an attempt to pageout the same area
+			 * of the file via a shared mapping.  At present that
+			 * calls journal_dirty_data(), and we get right here.
+			 * It may be too late to journal the data.  Simply
+			 * falling through to the next test will suffice: the
+			 * data will be dirty and wil be checkpointed.  The
+			 * ordering comments in the next comment block still
+			 * apply.
+			 */
+			//J_ASSERT_JH(jh, jh->b_next_transaction == NULL);
+
+			/*
+			 * If we're journalling data, and this buffer was
+			 * subject to a write(), it could be metadata, forget
+			 * or shadow against the committing transaction.  Now,
+			 * someone has dirtied the same darn page via a mapping
+			 * and it is being writepage()'d.
+			 * We *could* just steal the page from commit, with some
+			 * fancy locking there.  Instead, we just skip it -
+			 * don't tie the page's buffers to the new transaction
+			 * at all.
+			 * Implication: if we crash before the writepage() data
+			 * is written into the filesystem, recovery will replay
+			 * the write() data.
+			 */
+			if (jh->b_jlist != BJ_None &&
+					jh->b_jlist != BJ_SyncData &&
+					jh->b_jlist != BJ_AsyncData) {
+				JBUFFER_TRACE(jh, "Not stealing");
+				goto no_journal;
+			}
+
+			/*
+			 * This buffer may be undergoing writeout in commit.  We
+			 * can't return from here and let the caller dirty it
+			 * again because that can cause the write-out loop in
+			 * commit to never terminate.
+			 */
+			if (!async && buffer_dirty(bh)) {
+				atomic_inc(&bh->b_count);
+				spin_unlock(&journal_datalist_lock);
+				need_brelse = 1;
+				ll_rw_block(WRITE, 1, &bh);
+				wait_on_buffer(bh);
+				spin_lock(&journal_datalist_lock);
+				/* The buffer may become locked again at any
+				   time if it is redirtied */
+			}
+
+			/* journal_clean_data_list() may have got there first */
+			if (jh->b_transaction != NULL) {
+				JBUFFER_TRACE(jh, "unfile from commit");
+				__journal_unfile_buffer(jh);
+				jh->b_transaction = NULL;
+			}
+			/* The buffer will be refiled below */
+
+		}
+		/*
+		 * Special case --- the buffer might actually have been
+		 * allocated and then immediately deallocated in the previous,
+		 * committing transaction, so might still be left on that
+		 * transaction's metadata lists.
+		 */
+		if (jh->b_jlist != wanted_jlist) {
+			JBUFFER_TRACE(jh, "not on correct data list: unfile");
+			J_ASSERT_JH(jh, jh->b_jlist != BJ_Shadow);
+			__journal_unfile_buffer(jh);
+			jh->b_transaction = NULL;
+			JBUFFER_TRACE(jh, "file as data");
+			__journal_file_buffer(jh, handle->h_transaction,
+						wanted_jlist);
+		}
+	} else {
+		JBUFFER_TRACE(jh, "not on a transaction");
+		__journal_file_buffer(jh, handle->h_transaction, wanted_jlist);
+	}
+no_journal:
+	spin_unlock(&journal_datalist_lock);
+	if (need_brelse) {
+		BUFFER_TRACE(bh, "brelse");
+		__brelse(bh);
+	}
+	JBUFFER_TRACE(jh, "exit");
+	journal_unlock_journal_head(jh);
+	return 0;
+}
+
+/** 
+ * int journal_dirty_metadata() -  mark a buffer as containing dirty metadata
+ * @handle: transaction to add buffer to.
+ * @bh: buffer to mark 
+ * 
+ * mark dirty metadata which needs to be journaled as part of the current transaction.
+ *
+ * The buffer is placed on the transaction's metadata list and is marked
+ * as belonging to the transaction.  
+ *
+ * Returns error number or 0 on success.  
+ */
+int journal_dirty_metadata (handle_t *handle, struct buffer_head *bh)
+{
+/*
+ * Special care needs to be taken if the buffer already belongs to the
+ * current committing transaction (in which case we should have frozen
+ * data present for that commit).  In that case, we don't relink the
+ * buffer: that only gets done when the old transaction finally
+ * completes its commit.
+ * 
+ */
+	transaction_t *transaction = handle->h_transaction;
+	journal_t *journal = transaction->t_journal;
+	struct journal_head *jh = bh2jh(bh);
+
+	jbd_debug(5, "journal_head %p\n", jh);
+	JBUFFER_TRACE(jh, "entry");
+	lock_journal(journal);
+	if (is_handle_aborted(handle))
+		goto out_unlock;
+	
+	spin_lock(&journal_datalist_lock);
+	set_bit(BH_JBDDirty, &bh->b_state);
+
+	J_ASSERT_JH(jh, jh->b_transaction != NULL);
+	
+	/* 
+	 * Metadata already on the current transaction list doesn't
+	 * need to be filed.  Metadata on another transaction's list must
+	 * be committing, and will be refiled once the commit completes:
+	 * leave it alone for now. 
+	 */
+
+	if (jh->b_transaction != transaction) {
+		JBUFFER_TRACE(jh, "already on other transaction");
+		J_ASSERT_JH(jh, jh->b_transaction ==
+					journal->j_committing_transaction);
+		J_ASSERT_JH(jh, jh->b_next_transaction == transaction);
+		/* And this case is illegal: we can't reuse another
+		 * transaction's data buffer, ever. */
+		/* FIXME: writepage() should be journalled */
+		J_ASSERT_JH(jh, jh->b_jlist != BJ_SyncData);
+		goto done_locked;
+	}
+
+	/* That test should have eliminated the following case: */
+	J_ASSERT_JH(jh, jh->b_frozen_data == 0);
+
+	JBUFFER_TRACE(jh, "file as BJ_Metadata");
+	__journal_file_buffer(jh, handle->h_transaction, BJ_Metadata);
+
+done_locked:
+	spin_unlock(&journal_datalist_lock);
+	JBUFFER_TRACE(jh, "exit");
+out_unlock:
+	unlock_journal(journal);
+	return 0;
+}
+
+#if 0
+/* 
+ * journal_release_buffer: undo a get_write_access without any buffer
+ * updates, if the update decided in the end that it didn't need access.
+ *
+ * journal_get_write_access() can block, so it is quite possible for a
+ * journaling component to decide after the write access is returned
+ * that global state has changed and the update is no longer required.  */
+
+void journal_release_buffer (handle_t *handle, struct buffer_head *bh)
+{
+	transaction_t *transaction = handle->h_transaction;
+	journal_t *journal = transaction->t_journal;
+	struct journal_head *jh = bh2jh(bh);
+
+	lock_journal(journal);
+	JBUFFER_TRACE(jh, "entry");
+
+	/* If the buffer is reserved but not modified by this
+	 * transaction, then it is safe to release it.  In all other
+	 * cases, just leave the buffer as it is. */
+
+	spin_lock(&journal_datalist_lock);
+	if (jh->b_jlist == BJ_Reserved && jh->b_transaction == transaction &&
+	    !buffer_jdirty(jh2bh(jh))) {
+		JBUFFER_TRACE(jh, "unused: refiling it");
+		handle->h_buffer_credits++;
+		__journal_refile_buffer(jh);
+	}
+	spin_unlock(&journal_datalist_lock);
+
+	JBUFFER_TRACE(jh, "exit");
+	unlock_journal(journal);
+}
+#endif
+
+/** 
+ * void journal_forget() - bforget() for potentially-journaled buffers.
+ * @handle: transaction handle
+ * @bh:     bh to 'forget'
+ *
+ * We can only do the bforget if there are no commits pending against the
+ * buffer.  If the buffer is dirty in the current running transaction we
+ * can safely unlink it. 
+ *
+ * bh may not be a journalled buffer at all - it may be a non-JBD
+ * buffer which came off the hashtable.  Check for this.
+ *
+ * Decrements bh->b_count by one.
+ * 
+ * Allow this call even if the handle has aborted --- it may be part of
+ * the caller's cleanup after an abort.
+ */
+void journal_forget (handle_t *handle, struct buffer_head *bh)
+{
+	transaction_t *transaction = handle->h_transaction;
+	journal_t *journal = transaction->t_journal;
+	struct journal_head *jh;
+
+	BUFFER_TRACE(bh, "entry");
+
+	lock_journal(journal);
+	spin_lock(&journal_datalist_lock);
+
+	if (!buffer_jbd(bh))
+		goto not_jbd;
+	jh = bh2jh(bh);
+
+	if (jh->b_transaction == handle->h_transaction) {
+		J_ASSERT_JH(jh, !jh->b_frozen_data);
+
+		/* If we are forgetting a buffer which is already part
+		 * of this transaction, then we can just drop it from
+		 * the transaction immediately. */
+		clear_bit(BH_Dirty, &bh->b_state);
+		clear_bit(BH_JBDDirty, &bh->b_state);
+
+		JBUFFER_TRACE(jh, "belongs to current transaction: unfile");
+		J_ASSERT_JH(jh, !jh->b_committed_data);
+
+		__journal_unfile_buffer(jh);
+		jh->b_transaction = 0;
+
+		/* 
+		 * We are no longer going to journal this buffer.
+		 * However, the commit of this transaction is still
+		 * important to the buffer: the delete that we are now
+		 * processing might obsolete an old log entry, so by
+		 * committing, we can satisfy the buffer's checkpoint.
+		 *
+		 * So, if we have a checkpoint on the buffer, we should
+		 * now refile the buffer on our BJ_Forget list so that
+		 * we know to remove the checkpoint after we commit. 
+		 */
+
+		if (jh->b_cp_transaction) {
+			__journal_file_buffer(jh, transaction, BJ_Forget);
+		} else {
+			__journal_remove_journal_head(bh);
+			__brelse(bh);
+			if (!buffer_jbd(bh)) {
+				spin_unlock(&journal_datalist_lock);
+				unlock_journal(journal);
+				__bforget(bh);
+				return;
+			}
+		}
+		
+	} else if (jh->b_transaction) {
+		J_ASSERT_JH(jh, (jh->b_transaction == 
+				 journal->j_committing_transaction));
+		/* However, if the buffer is still owned by a prior
+		 * (committing) transaction, we can't drop it yet... */
+		JBUFFER_TRACE(jh, "belongs to older transaction");
+		/* ... but we CAN drop it from the new transaction if we
+		 * have also modified it since the original commit. */
+
+		if (jh->b_next_transaction) {
+			J_ASSERT(jh->b_next_transaction == transaction);
+			jh->b_next_transaction = NULL;
+		}
+	}
+
+not_jbd:
+	spin_unlock(&journal_datalist_lock);
+	unlock_journal(journal);
+	__brelse(bh);
+	return;
+}
+
+#if 0	/* Unused */
+/*
+ * journal_sync_buffer: flush a potentially-journaled buffer to disk.
+ *
+ * Used for O_SYNC filesystem operations.  If the buffer is journaled,
+ * we need to complete the O_SYNC by waiting for the transaction to
+ * complete.  It is an error to call journal_sync_buffer before
+ * journal_stop!
+ */
+
+void journal_sync_buffer(struct buffer_head *bh)
+{
+	transaction_t *transaction;
+	journal_t *journal;
+	long sequence;
+	struct journal_head *jh;
+
+	/* If the buffer isn't journaled, this is easy: just sync it to
+	 * disk.  */
+	BUFFER_TRACE(bh, "entry");
+
+	spin_lock(&journal_datalist_lock);
+	if (!buffer_jbd(bh)) {
+		spin_unlock(&journal_datalist_lock);
+		return;
+	}
+	jh = bh2jh(bh);
+	if (jh->b_transaction == NULL) {
+		/* If the buffer has already been journaled, then this
+		 * is a noop. */
+		if (jh->b_cp_transaction == NULL) {
+			spin_unlock(&journal_datalist_lock);
+			return;
+		}
+		atomic_inc(&bh->b_count);
+		spin_unlock(&journal_datalist_lock);
+		ll_rw_block (WRITE, 1, &bh);
+		wait_on_buffer(bh);
+		__brelse(bh);
+		goto out;
+	}
+	
+	/* Otherwise, just wait until the transaction is synced to disk. */
+	transaction = jh->b_transaction;
+	journal = transaction->t_journal;
+	sequence = transaction->t_tid;
+	spin_unlock(&journal_datalist_lock);
+
+	jbd_debug(2, "requesting commit for jh %p\n", jh);
+	log_start_commit (journal, transaction);
+	
+	while (tid_gt(sequence, journal->j_commit_sequence)) {
+		wake_up(&journal->j_wait_done_commit);
+		sleep_on(&journal->j_wait_done_commit);
+	}
+	JBUFFER_TRACE(jh, "exit");
+out:
+	return;
+}
+#endif
+
+/*
+ * Register a callback function for this handle.  The function will be
+ * called when the transaction that this handle is part of has been
+ * committed to disk with the original callback data struct and the
+ * error status of the journal as parameters.  There is no guarantee of
+ * ordering between handles within a single transaction, nor between
+ * callbacks registered on the same handle.
+ *
+ * The caller is responsible for allocating the journal_callback struct.
+ * This is to allow the caller to add as much extra data to the callback
+ * as needed, but reduce the overhead of multiple allocations.  The caller
+ * allocated struct must start with a struct journal_callback at offset 0,
+ * and has the caller-specific data afterwards.
+ */
+void journal_callback_set(handle_t *handle,
+			  void (*func)(struct journal_callback *jcb, int error),
+			  struct journal_callback *jcb)
+{
+	list_add_tail(&jcb->jcb_list, &handle->h_jcb);
+	jcb->jcb_func = func;
+}
+
+/**
+ * int journal_stop() - complete a transaction
+ * @handle: tranaction to complete.
+ * 
+ * All done for a particular handle.
+ *
+ * There is not much action needed here.  We just return any remaining
+ * buffer credits to the transaction and remove the handle.  The only
+ * complication is that we need to start a commit operation if the
+ * filesystem is marked for synchronous update.
+ *
+ * journal_stop itself will not usually return an error, but it may
+ * do so in unusual circumstances.  In particular, expect it to 
+ * return -EIO if a journal_abort has been executed since the
+ * transaction began.
+ */
+int journal_stop(handle_t *handle)
+{
+	transaction_t *transaction = handle->h_transaction;
+	journal_t *journal = transaction->t_journal;
+	int old_handle_count, err;
+	
+	if (!handle)
+		return 0;
+
+	J_ASSERT (transaction->t_updates > 0);
+	J_ASSERT (journal_current_handle() == handle);
+	
+	if (is_handle_aborted(handle))
+		err = -EIO;
+	else
+		err = 0;
+	
+	if (--handle->h_ref > 0) {
+		jbd_debug(4, "h_ref %d -> %d\n", handle->h_ref + 1,
+			  handle->h_ref);
+		return err;
+	}
+
+	jbd_debug(4, "Handle %p going down\n", handle);
+
+	/*
+	 * Implement synchronous transaction batching.  If the handle
+	 * was synchronous, don't force a commit immediately.  Let's
+	 * yield and let another thread piggyback onto this transaction.
+	 * Keep doing that while new threads continue to arrive.
+	 * It doesn't cost much - we're about to run a commit and sleep
+	 * on IO anyway.  Speeds up many-threaded, many-dir operations
+	 * by 30x or more...
+	 */
+	if (handle->h_sync) {
+		do {
+			old_handle_count = transaction->t_handle_count;
+			yield();
+		} while (old_handle_count != transaction->t_handle_count);
+	}
+
+	current->journal_info = NULL;
+	transaction->t_outstanding_credits -= handle->h_buffer_credits;
+	transaction->t_updates--;
+	if (!transaction->t_updates) {
+		wake_up(&journal->j_wait_updates);
+		if (journal->j_barrier_count)
+			wake_up(&journal->j_wait_transaction_locked);
+	}
+
+	/* Move callbacks from the handle to the transaction. */
+	list_splice(&handle->h_jcb, &transaction->t_jcb);
+
+	/*
+	 * If the handle is marked SYNC, we need to set another commit
+	 * going!  We also want to force a commit if the current
+	 * transaction is occupying too much of the log, or if the
+	 * transaction is too old now.
+	 */
+	if (handle->h_sync ||
+			transaction->t_outstanding_credits >
+				journal->j_max_transaction_buffers ||
+	    		(journal->j_commit_interval &&
+	    		 time_after_eq(jiffies, transaction->t_expires))) {
+		/* Do this even for aborted journals: an abort still
+		 * completes the commit thread, it just doesn't write
+		 * anything to disk. */
+		tid_t tid = transaction->t_tid;
+		
+		jbd_debug(2, "transaction too old, requesting commit for "
+					"handle %p\n", handle);
+		/* This is non-blocking */
+		log_start_commit(journal, transaction);
+		
+		/*
+		 * Special case: JFS_SYNC synchronous updates require us
+		 * to wait for the commit to complete.  
+		 */
+		if (handle->h_sync && !(current->flags & PF_MEMALLOC))
+			log_wait_commit(journal, tid);
+	}
+	kfree(handle);
+	return err;
+}
+
+/**int journal_force_commit() - force any uncommitted transactions
+ * @journal: journal to force
+ *
+ * For synchronous operations: force any uncommitted transactions
+ * to disk.  May seem kludgy, but it reuses all the handle batching
+ * code in a very simple manner.
+ */
+int journal_force_commit(journal_t *journal)
+{
+	handle_t *handle;
+	int ret = 0;
+
+	lock_kernel();
+	handle = journal_start(journal, 1);
+	if (IS_ERR(handle)) {
+		ret = PTR_ERR(handle);
+		goto out;
+	}
+	handle->h_sync = 1;
+	journal_stop(handle);
+out:
+	unlock_kernel();
+	return ret;
+}
+
+/*
+ *
+ * List management code snippets: various functions for manipulating the
+ * transaction buffer lists.
+ *
+ */
+
+/*
+ * Append a buffer to a transaction list, given the transaction's list head
+ * pointer.
+ * journal_datalist_lock is held.
+ */
+
+static inline void 
+__blist_add_buffer(struct journal_head **list, struct journal_head *jh)
+{
+	if (!*list) {
+		jh->b_tnext = jh->b_tprev = jh;
+		*list = jh;
+	} else {
+		/* Insert at the tail of the list to preserve order */
+		struct journal_head *first = *list, *last = first->b_tprev;
+		jh->b_tprev = last;
+		jh->b_tnext = first;
+		last->b_tnext = first->b_tprev = jh;
+	}
+}
+
+/* 
+ * Remove a buffer from a transaction list, given the transaction's list
+ * head pointer.
+ *
+ * Called with journal_datalist_lock held, and the journal may not
+ * be locked.
+ */
+
+static inline void
+__blist_del_buffer(struct journal_head **list, struct journal_head *jh)
+{
+	if (*list == jh) {
+		*list = jh->b_tnext;
+		if (*list == jh)
+			*list = 0;
+	}
+	jh->b_tprev->b_tnext = jh->b_tnext;
+	jh->b_tnext->b_tprev = jh->b_tprev;
+}
+
+/* 
+ * Remove a buffer from the appropriate transaction list.
+ *
+ * Note that this function can *change* the value of
+ * bh->b_transaction->t_sync_datalist, t_async_datalist, t_buffers, t_forget,
+ * t_iobuf_list, t_shadow_list, t_log_list or t_reserved_list.  If the caller
+ * is holding onto a copy of one of thee pointers, it could go bad.
+ * Generally the caller needs to re-read the pointer from the transaction_t.
+ *
+ * If bh->b_jlist is BJ_SyncData or BJ_AsyncData then we may have been called
+ * via journal_try_to_free_buffer() or journal_clean_data_list().  In that
+ * case, journal_datalist_lock will be held, and the journal may not be locked.
+ */
+void __journal_unfile_buffer(struct journal_head *jh)
+{
+	struct journal_head **list = 0;
+	transaction_t * transaction;
+
+	assert_spin_locked(&journal_datalist_lock);
+	transaction = jh->b_transaction;
+
+	J_ASSERT_JH(jh, jh->b_jlist < BJ_Types);
+
+	if (jh->b_jlist != BJ_None)
+		J_ASSERT_JH(jh, transaction != 0);
+
+	switch (jh->b_jlist) {
+	case BJ_None:
+		return;
+	case BJ_SyncData:
+		list = &transaction->t_sync_datalist;
+		break;
+	case BJ_AsyncData:
+		list = &transaction->t_async_datalist;
+		break;
+	case BJ_Metadata:
+		transaction->t_nr_buffers--;
+		J_ASSERT_JH(jh, transaction->t_nr_buffers >= 0);
+		list = &transaction->t_buffers;
+		break;
+	case BJ_Forget:
+		list = &transaction->t_forget;
+		break;
+	case BJ_IO:
+		list = &transaction->t_iobuf_list;
+		break;
+	case BJ_Shadow:
+		list = &transaction->t_shadow_list;
+		break;
+	case BJ_LogCtl:
+		list = &transaction->t_log_list;
+		break;
+	case BJ_Reserved:
+		list = &transaction->t_reserved_list;
+		break;
+	}
+	
+	__blist_del_buffer(list, jh);
+	jh->b_jlist = BJ_None;
+	if (test_and_clear_bit(BH_JBDDirty, &jh2bh(jh)->b_state)) {
+		set_bit(BH_Dirty, &jh2bh(jh)->b_state);
+	}
+}
+
+void journal_unfile_buffer(struct journal_head *jh)
+{
+	spin_lock(&journal_datalist_lock);
+	__journal_unfile_buffer(jh);
+	spin_unlock(&journal_datalist_lock);
+}
+
+/*
+ * Called from journal_try_to_free_buffers().  The journal is not
+ * locked. lru_list_lock is not held.
+ *
+ * Here we see why journal_datalist_lock is global and not per-journal.
+ * We cannot get back to this buffer's journal pointer without locking
+ * out journal_clean_data_list() in some manner.
+ *
+ * One could use journal_datalist_lock to get unracy access to a
+ * per-journal lock.
+ *
+ * Called with journal_datalist_lock held.
+ *
+ * Returns non-zero iff we were able to free the journal_head.
+ */
+static int __journal_try_to_free_buffer(struct buffer_head *bh,
+					int *locked_or_dirty)
+{
+	struct journal_head *jh;
+
+	assert_spin_locked(&journal_datalist_lock);
+
+	jh = bh2jh(bh);
+
+	if (buffer_locked(bh) || buffer_dirty(bh)) {
+		*locked_or_dirty = 1;
+		goto out;
+	}
+
+	if (!buffer_uptodate(bh))
+		goto out;
+
+	if (jh->b_next_transaction != 0)
+		goto out;
+
+	if (jh->b_transaction != 0 && jh->b_cp_transaction == 0) {
+		if (jh->b_jlist == BJ_SyncData || jh->b_jlist==BJ_AsyncData) {
+			/* A written-back ordered data buffer */
+			JBUFFER_TRACE(jh, "release data");
+			__journal_unfile_buffer(jh);
+			jh->b_transaction = 0;
+			__journal_remove_journal_head(bh);
+			__brelse(bh);
+		}
+	}
+	else if (jh->b_cp_transaction != 0 && jh->b_transaction == 0) {
+		/* written-back checkpointed metadata buffer */
+		if (jh->b_jlist == BJ_None) {
+			JBUFFER_TRACE(jh, "remove from checkpoint list");
+			__journal_remove_checkpoint(jh);
+			__journal_remove_journal_head(bh);
+			__brelse(bh);
+		}
+	}
+	return !buffer_jbd(bh);
+
+out:
+	return 0;
+}
+
+void debug_page(struct page *p)
+{
+	struct buffer_head *bh;
+
+	bh = p->buffers;
+
+	printk(KERN_ERR "%s: page index:%lu count:%d flags:%lx\n", __FUNCTION__,
+		 p->index, atomic_read(&p->count), p->flags);
+
+	while (bh) {
+		printk(KERN_ERR "%s: bh b_next:%p blocknr:%lu b_list:%u state:%lx\n",
+			__FUNCTION__, bh->b_next, bh->b_blocknr, bh->b_list,
+				bh->b_state);
+		bh = bh->b_this_page;
+	} 
+}
+
+
+/** 
+ * int journal_try_to_free_buffers() - try to free page buffers.
+ * @journal: journal for operation
+ * @page: to try and free
+ * @gfp_mask: 'IO' mode for try_to_free_buffers()
+ *
+ * 
+ * For all the buffers on this page,
+ * if they are fully written out ordered data, move them onto BUF_CLEAN
+ * so try_to_free_buffers() can reap them.
+ * 
+ * This function returns non-zero if we wish try_to_free_buffers()
+ * to be called. We do this if the page is releasable by try_to_free_buffers().
+ * We also do it if the page has locked or dirty buffers and the caller wants
+ * us to perform sync or async writeout.
+ */
+int journal_try_to_free_buffers(journal_t *journal, 
+				struct page *page, int gfp_mask)
+{
+/*
+ * journal_try_to_free_buffers().  For all the buffers on this page,
+ * if they are fully written out ordered data, move them onto BUF_CLEAN
+ * so try_to_free_buffers() can reap them.  Called with lru_list_lock
+ * not held.  Does its own locking.
+ *
+ * This complicates JBD locking somewhat.  We aren't protected by the
+ * BKL here.  We wish to remove the buffer from its committing or
+ * running transaction's ->t_datalist via __journal_unfile_buffer.
+ *
+ * This may *change* the value of transaction_t->t_datalist, so anyone
+ * who looks at t_datalist needs to lock against this function.
+ *
+ * Even worse, someone may be doing a journal_dirty_data on this
+ * buffer.  So we need to lock against that.  journal_dirty_data()
+ * will come out of the lock with the buffer dirty, which makes it
+ * ineligible for release here.
+ *
+ * Who else is affected by this?  hmm...  Really the only contender
+ * is do_get_write_access() - it could be looking at the buffer while
+ * journal_try_to_free_buffer() is changing its state.  But that
+ * cannot happen because we never reallocate freed data as metadata
+ * while the data is part of a transaction.  Yes?
+ *
+ */
+	struct buffer_head *bh;
+	struct buffer_head *tmp;
+	int locked_or_dirty = 0;
+	int call_ttfb = 1;
+
+	J_ASSERT(PageLocked(page));
+
+	bh = page->buffers;
+	tmp = bh;
+	spin_lock(&journal_datalist_lock);
+	do {
+		struct buffer_head *p = tmp;
+
+		if (unlikely(!tmp)) {
+			debug_page(page);
+			BUG();
+		}
+			
+		tmp = tmp->b_this_page;
+		if (buffer_jbd(p))
+			if (!__journal_try_to_free_buffer(p, &locked_or_dirty))
+				call_ttfb = 0;
+	} while (tmp != bh);
+	spin_unlock(&journal_datalist_lock);
+
+	if (!(gfp_mask & (__GFP_IO|__GFP_WAIT)))
+		goto out;
+	if (!locked_or_dirty)
+		goto out;
+	/*
+	 * The VM wants us to do writeout, or to block on IO, or both.
+	 * So we allow try_to_free_buffers to be called even if the page
+	 * still has journalled buffers.
+	 */
+	call_ttfb = 1;
+out:
+	return call_ttfb;
+}
+
+/*
+ * This buffer is no longer needed.  If it is on an older transaction's
+ * checkpoint list we need to record it on this transaction's forget list
+ * to pin this buffer (and hence its checkpointing transaction) down until
+ * this transaction commits.  If the buffer isn't on a checkpoint list, we
+ * release it.
+ * Returns non-zero if JBD no longer has an interest in the buffer.
+ */
+static int dispose_buffer(struct journal_head *jh,
+		transaction_t *transaction)
+{
+	int may_free = 1;
+	struct buffer_head *bh = jh2bh(jh);
+
+	spin_lock(&journal_datalist_lock);
+	__journal_unfile_buffer(jh);
+	jh->b_transaction = 0;
+
+	if (jh->b_cp_transaction) {
+		JBUFFER_TRACE(jh, "on running+cp transaction");
+		__journal_file_buffer(jh, transaction, BJ_Forget);
+		clear_bit(BH_JBDDirty, &bh->b_state);
+		may_free = 0;
+	} else {
+		JBUFFER_TRACE(jh, "on running transaction");
+		__journal_remove_journal_head(bh);
+		__brelse(bh);
+	}
+	spin_unlock(&journal_datalist_lock);
+	return may_free;
+}
+
+/*
+ * journal_flushpage 
+ *
+ * This code is tricky.  It has a number of cases to deal with.
+ *
+ * There are two invariants which this code relies on:
+ *
+ * i_size must be updated on disk before we start calling flushpage on the
+ * data.
+ * 
+ *  This is done in ext3 by defining an ext3_setattr method which
+ *  updates i_size before truncate gets going.  By maintaining this
+ *  invariant, we can be sure that it is safe to throw away any buffers
+ *  attached to the current transaction: once the transaction commits,
+ *  we know that the data will not be needed.
+ * 
+ *  Note however that we can *not* throw away data belonging to the
+ *  previous, committing transaction!  
+ *
+ * Any disk blocks which *are* part of the previous, committing
+ * transaction (and which therefore cannot be discarded immediately) are
+ * not going to be reused in the new running transaction
+ *
+ *  The bitmap committed_data images guarantee this: any block which is
+ *  allocated in one transaction and removed in the next will be marked
+ *  as in-use in the committed_data bitmap, so cannot be reused until
+ *  the next transaction to delete the block commits.  This means that
+ *  leaving committing buffers dirty is quite safe: the disk blocks
+ *  cannot be reallocated to a different file and so buffer aliasing is
+ *  not possible.
+ *
+ *
+ * The above applies mainly to ordered data mode.  In writeback mode we
+ * don't make guarantees about the order in which data hits disk --- in
+ * particular we don't guarantee that new dirty data is flushed before
+ * transaction commit --- so it is always safe just to discard data
+ * immediately in that mode.  --sct 
+ */
+
+/*
+ * The journal_unmap_buffer helper function returns zero if the buffer
+ * concerned remains pinned as an anonymous buffer belonging to an older
+ * transaction.
+ *
+ * We're outside-transaction here.  Either or both of j_running_transaction
+ * and j_committing_transaction may be NULL.
+ */
+static int journal_unmap_buffer(journal_t *journal, struct buffer_head *bh)
+{
+	transaction_t *transaction;
+	struct journal_head *jh;
+	int may_free = 1;
+
+	BUFFER_TRACE(bh, "entry");
+
+	if (!buffer_mapped(bh))
+		return 1;
+
+	/* It is safe to proceed here without the
+	 * journal_datalist_spinlock because the buffers cannot be
+	 * stolen by try_to_free_buffers as long as we are holding the
+	 * page lock. --sct */
+
+	if (!buffer_jbd(bh))
+		goto zap_buffer;
+
+	jh = bh2jh(bh);
+	transaction = jh->b_transaction;
+	if (transaction == NULL) {
+		/* First case: not on any transaction.  If it
+		 * has no checkpoint link, then we can zap it:
+		 * it's a writeback-mode buffer so we don't care
+		 * if it hits disk safely. */
+		if (!jh->b_cp_transaction) {
+			JBUFFER_TRACE(jh, "not on any transaction: zap");
+			goto zap_buffer;
+		}
+		
+		if (!buffer_dirty(bh)) {
+			/* bdflush has written it.  We can drop it now */
+			goto zap_buffer;
+		}
+
+		/* OK, it must be in the journal but still not
+		 * written fully to disk: it's metadata or
+		 * journaled data... */
+
+		if (journal->j_running_transaction) {
+			/* ... and once the current transaction has
+			 * committed, the buffer won't be needed any
+			 * longer. */
+			JBUFFER_TRACE(jh, "checkpointed: add to BJ_Forget");
+			return dispose_buffer(jh,
+					journal->j_running_transaction);
+		} else {
+			/* There is no currently-running transaction. So the
+			 * orphan record which we wrote for this file must have
+			 * passed into commit.  We must attach this buffer to
+			 * the committing transaction, if it exists. */
+			if (journal->j_committing_transaction) {
+				JBUFFER_TRACE(jh, "give to committing trans");
+				return dispose_buffer(jh,
+					journal->j_committing_transaction);
+			} else {
+				/* The orphan record's transaction has
+				 * committed.  We can cleanse this buffer */
+				clear_bit(BH_JBDDirty, &bh->b_state);
+				goto zap_buffer;
+			}
+		}
+	} else if (transaction == journal->j_committing_transaction) {
+		/* If it is committing, we simply cannot touch it.  We
+		 * can remove it's next_transaction pointer from the
+		 * running transaction if that is set, but nothing
+		 * else. */
+		JBUFFER_TRACE(jh, "on committing transaction");
+		set_bit(BH_Freed, &bh->b_state);
+		if (jh->b_next_transaction) {
+			J_ASSERT(jh->b_next_transaction ==
+					journal->j_running_transaction);
+			jh->b_next_transaction = NULL;
+		}
+		return 0;
+	} else {
+		/* Good, the buffer belongs to the running transaction.
+		 * We are writing our own transaction's data, not any
+		 * previous one's, so it is safe to throw it away
+		 * (remember that we expect the filesystem to have set
+		 * i_size already for this truncate so recovery will not
+		 * expose the disk blocks we are discarding here.) */
+		J_ASSERT_JH(jh, transaction == journal->j_running_transaction);
+		may_free = dispose_buffer(jh, transaction);
+	}
+
+zap_buffer:	
+	if (buffer_dirty(bh))
+		mark_buffer_clean(bh);
+	J_ASSERT_BH(bh, !buffer_jdirty(bh));
+	clear_bit(BH_Uptodate, &bh->b_state);
+	clear_bit(BH_Mapped, &bh->b_state);
+	clear_bit(BH_Req, &bh->b_state);
+	clear_bit(BH_New, &bh->b_state);
+	return may_free;
+}
+
+/** 
+ * int journal_flushpage() 
+ * @journal: journal to use for flush... 
+ * @page:    page to flush
+ * @offset:  length of page to flush.
+ *
+ * Reap page buffers containing data after offset in page.
+ *
+ * Return non-zero if the page's buffers were successfully reaped.
+ */
+int journal_flushpage(journal_t *journal, 
+		      struct page *page, 
+		      unsigned long offset)
+{
+	struct buffer_head *head, *bh, *next;
+	unsigned int curr_off = 0;
+	int may_free = 1;
+		
+	if (!PageLocked(page))
+		BUG();
+	if (!page->buffers)
+		return 1;
+
+	/* We will potentially be playing with lists other than just the
+	 * data lists (especially for journaled data mode), so be
+	 * cautious in our locking. */
+	lock_journal(journal);
+
+	head = bh = page->buffers;
+	do {
+		unsigned int next_off = curr_off + bh->b_size;
+		next = bh->b_this_page;
+
+		/* AKPM: doing lock_buffer here may be overly paranoid */
+		if (offset <= curr_off) {
+		 	/* This block is wholly outside the truncation point */
+			lock_buffer(bh);
+			may_free &= journal_unmap_buffer(journal, bh);
+			unlock_buffer(bh);
+		}
+		curr_off = next_off;
+		bh = next;
+
+	} while (bh != head);
+
+	unlock_journal(journal);
+
+	if (!offset) {
+		if (!may_free || !try_to_free_buffers(page, 0))
+			return 0;
+		J_ASSERT(page->buffers == NULL);
+	}
+	return 1;
+}
+
+/* 
+ * File a buffer on the given transaction list. 
+ */
+void __journal_file_buffer(struct journal_head *jh,
+			transaction_t *transaction, int jlist)
+{
+	struct journal_head **list = 0;
+	int was_dirty = 0;
+
+	assert_spin_locked(&journal_datalist_lock);
+	
+	J_ASSERT_JH(jh, jh->b_jlist < BJ_Types);
+	J_ASSERT_JH(jh, jh->b_transaction == transaction ||
+				jh->b_transaction == 0);
+
+	if (jh->b_transaction && jh->b_jlist == jlist)
+		return;
+	
+	/* The following list of buffer states needs to be consistent
+	 * with __jbd_unexpected_dirty_buffer()'s handling of dirty
+	 * state. */
+
+	if (jlist == BJ_Metadata || jlist == BJ_Reserved || 
+	    jlist == BJ_Shadow || jlist == BJ_Forget) {
+		if (atomic_set_buffer_clean(jh2bh(jh)) ||
+		    test_and_clear_bit(BH_JBDDirty, &jh2bh(jh)->b_state))
+			was_dirty = 1;
+	}
+
+	if (jh->b_transaction)
+		__journal_unfile_buffer(jh);
+	else
+		jh->b_transaction = transaction;
+
+	switch (jlist) {
+	case BJ_None:
+		J_ASSERT_JH(jh, !jh->b_committed_data);
+		J_ASSERT_JH(jh, !jh->b_frozen_data);
+		return;
+	case BJ_SyncData:
+		list = &transaction->t_sync_datalist;
+		break;
+	case BJ_AsyncData:
+		list = &transaction->t_async_datalist;
+		break;
+	case BJ_Metadata:
+		transaction->t_nr_buffers++;
+		list = &transaction->t_buffers;
+		break;
+	case BJ_Forget:
+		list = &transaction->t_forget;
+		break;
+	case BJ_IO:
+		list = &transaction->t_iobuf_list;
+		break;
+	case BJ_Shadow:
+		list = &transaction->t_shadow_list;
+		break;
+	case BJ_LogCtl:
+		list = &transaction->t_log_list;
+		break;
+	case BJ_Reserved:
+		list = &transaction->t_reserved_list;
+		break;
+	}
+
+	__blist_add_buffer(list, jh);
+	jh->b_jlist = jlist;
+
+	if (was_dirty)
+		set_bit(BH_JBDDirty, &jh2bh(jh)->b_state);
+}
+
+void journal_file_buffer(struct journal_head *jh,
+				transaction_t *transaction, int jlist)
+{
+	spin_lock(&journal_datalist_lock);
+	__journal_file_buffer(jh, transaction, jlist);
+	spin_unlock(&journal_datalist_lock);
+}
+
+static void jbd_refile_buffer(struct buffer_head *bh)
+{
+	if (buffer_dirty(bh) && (bh->b_list != BUF_DIRTY))
+		set_buffer_flushtime(bh);
+	refile_buffer(bh);
+}
+
+/* 
+ * Remove a buffer from its current buffer list in preparation for
+ * dropping it from its current transaction entirely.  If the buffer has
+ * already started to be used by a subsequent transaction, refile the
+ * buffer on that transaction's metadata list.
+ */
+
+void __journal_refile_buffer(struct journal_head *jh)
+{
+	int was_dirty = 0;
+
+	assert_spin_locked(&journal_datalist_lock);
+	/* If the buffer is now unused, just drop it. */
+	if (jh->b_next_transaction == NULL) {
+		__journal_unfile_buffer(jh);
+		jh->b_transaction = NULL;
+		/* Onto BUF_DIRTY for writeback */
+		jbd_refile_buffer(jh2bh(jh));
+		return;
+	}
+	
+	/* It has been modified by a later transaction: add it to the
+	 * new transaction's metadata list. */
+
+	if (test_and_clear_bit(BH_JBDDirty, &jh2bh(jh)->b_state))
+			was_dirty = 1;
+
+	__journal_unfile_buffer(jh);
+	jh->b_transaction = jh->b_next_transaction;
+	jh->b_next_transaction = NULL;
+	__journal_file_buffer(jh, jh->b_transaction, BJ_Metadata);
+	J_ASSERT_JH(jh, jh->b_transaction->t_state == T_RUNNING);
+
+	if (was_dirty)
+		set_bit(BH_JBDDirty, &jh2bh(jh)->b_state);
+
+}
+
+/*
+ * For the unlocked version of this call, also make sure that any
+ * hanging journal_head is cleaned up if necessary.
+ *
+ * __journal_refile_buffer is usually called as part of a single locked
+ * operation on a buffer_head, in which the caller is probably going to
+ * be hooking the journal_head onto other lists.  In that case it is up
+ * to the caller to remove the journal_head if necessary.  For the
+ * unlocked journal_refile_buffer call, the caller isn't going to be
+ * doing anything else to the buffer so we need to do the cleanup
+ * ourselves to avoid a jh leak. 
+ *
+ * *** The journal_head may be freed by this call! ***
+ */
+void journal_refile_buffer(struct journal_head *jh)
+{
+	struct buffer_head *bh;
+
+	spin_lock(&journal_datalist_lock);
+	bh = jh2bh(jh);
+
+	__journal_refile_buffer(jh);
+	__journal_remove_journal_head(bh);
+
+	spin_unlock(&journal_datalist_lock);
+	__brelse(bh);
+}
diff --git a/fs/jffs/Makefile b/fs/jffs/Makefile
new file mode 100644
index 00000000000000..546b9a739a0158
--- /dev/null
+++ b/fs/jffs/Makefile
@@ -0,0 +1,32 @@
+#
+# Makefile for the linux Journalling Flash FileSystem (JFFS) routines.
+#
+# $Id: Makefile,v 1.11 2001/09/25 20:59:41 dwmw2 Exp $
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile...
+
+list-multi := jffs.o
+
+jffs-objs := jffs_fm.o intrep.o
+
+ifeq ($(PATCHLEVEL),2)
+	jffs-objs += inode-v22.o
+else
+	jffs-objs += inode-v23.o
+endif
+
+ifeq ($(CONFIG_JFFS_PROC_FS),y)
+	jffs-objs += jffs_proc.o
+endif
+
+O_TARGET := jffs.o
+
+obj-y := $(jffs-objs)
+obj-m := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
+
diff --git a/fs/jffs/inode-v23.c b/fs/jffs/inode-v23.c
new file mode 100644
index 00000000000000..b8e44cfed149af
--- /dev/null
+++ b/fs/jffs/inode-v23.c
@@ -0,0 +1,1770 @@
+/*
+ * JFFS -- Journalling Flash File System, Linux implementation.
+ *
+ * Copyright (C) 1999, 2000  Axis Communications AB.
+ *
+ * Created by Finn Hakansson <finn@axis.com>.
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * $Id: inode-v23.c,v 1.70 2001/10/02 09:16:02 dwmw2 Exp $
+ *
+ * Ported to Linux 2.3.x and MTD:
+ * Copyright (C) 2000  Alexander Larsson (alex@cendio.se), Cendio Systems AB
+ *
+ * Copyright 2000, 2001  Red Hat, Inc.
+ */
+
+/* inode.c -- Contains the code that is called from the VFS.  */
+
+/* TODO-ALEX:
+ * uid and gid are just 16 bit.
+ * jffs_file_write reads from user-space pointers without xx_from_user
+ * maybe other stuff do to.
+ */
+
+/* Argh. Some architectures have kernel_thread in asm/processor.h
+   Some have it in unistd.h and you need to define __KERNEL_SYSCALLS__
+   Pass me a baseball bat and the person responsible.
+   dwmw2
+*/
+#define __KERNEL_SYSCALLS__
+#include <linux/sched.h>
+#include <linux/unistd.h>
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/jffs.h>
+#include <linux/fs.h>
+#include <linux/locks.h>
+#include <linux/smp_lock.h>
+#include <linux/ioctl.h>
+#include <linux/stat.h>
+#include <linux/blkdev.h>
+#include <linux/quotaops.h>
+#include <asm/semaphore.h>
+#include <asm/byteorder.h>
+#include <asm/uaccess.h>
+
+#include "jffs_fm.h"
+#include "intrep.h"
+#if CONFIG_JFFS_PROC_FS
+#include "jffs_proc.h"
+#endif
+
+static int jffs_remove(struct inode *dir, struct dentry *dentry, int type);
+
+static struct super_operations jffs_ops;
+static struct file_operations jffs_file_operations;
+static struct inode_operations jffs_file_inode_operations;
+static struct file_operations jffs_dir_operations;
+static struct inode_operations jffs_dir_inode_operations;
+static struct address_space_operations jffs_address_operations;
+
+kmem_cache_t     *node_cache = NULL;
+kmem_cache_t     *fm_cache = NULL;
+
+/* Called by the VFS at mount time to initialize the whole file system.  */
+static struct super_block *
+jffs_read_super(struct super_block *sb, void *data, int silent)
+{
+	kdev_t dev = sb->s_dev;
+	struct inode *root_inode;
+	struct jffs_control *c;
+
+	D1(printk(KERN_NOTICE "JFFS: Trying to mount device %s.\n",
+		  kdevname(dev)));
+
+	if (MAJOR(dev) != MTD_BLOCK_MAJOR) {
+		printk(KERN_WARNING "JFFS: Trying to mount a "
+		       "non-mtd device.\n");
+		return 0;
+	}
+
+	sb->s_blocksize = PAGE_CACHE_SIZE;
+	sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
+	sb->u.generic_sbp = (void *) 0;
+	sb->s_maxbytes = 0xFFFFFFFF;
+
+	/* Build the file system.  */
+	if (jffs_build_fs(sb) < 0) {
+		goto jffs_sb_err1;
+	}
+
+	/*
+	 * set up enough so that we can read an inode
+	 */
+	sb->s_magic = JFFS_MAGIC_SB_BITMASK;
+	sb->s_op = &jffs_ops;
+
+	root_inode = iget(sb, JFFS_MIN_INO);
+	if (!root_inode)
+	        goto jffs_sb_err2;
+
+	/* Get the root directory of this file system.  */
+	if (!(sb->s_root = d_alloc_root(root_inode))) {
+		goto jffs_sb_err3;
+	}
+
+	c = (struct jffs_control *) sb->u.generic_sbp;
+
+#ifdef CONFIG_JFFS_PROC_FS
+	/* Set up the jffs proc file system.  */
+	if (jffs_register_jffs_proc_dir(dev, c) < 0) {
+		printk(KERN_WARNING "JFFS: Failed to initialize the JFFS "
+			"proc file system for device %s.\n",
+			kdevname(dev));
+	}
+#endif
+
+	/* Set the Garbage Collection thresholds */
+
+	/* GC if free space goes below 5% of the total size */
+	c->gc_minfree_threshold = c->fmc->flash_size / 20;
+
+	if (c->gc_minfree_threshold < c->fmc->sector_size)
+		c->gc_minfree_threshold = c->fmc->sector_size;
+
+	/* GC if dirty space exceeds 33% of the total size. */
+	c->gc_maxdirty_threshold = c->fmc->flash_size / 3;
+
+	if (c->gc_maxdirty_threshold < c->fmc->sector_size)
+		c->gc_maxdirty_threshold = c->fmc->sector_size;
+
+
+	c->thread_pid = kernel_thread (jffs_garbage_collect_thread, 
+				        (void *) c, 
+				        CLONE_FS | CLONE_FILES | CLONE_SIGHAND);
+	D1(printk(KERN_NOTICE "JFFS: GC thread pid=%d.\n", (int) c->thread_pid));
+
+	D1(printk(KERN_NOTICE "JFFS: Successfully mounted device %s.\n",
+	       kdevname(dev)));
+	return sb;
+
+jffs_sb_err3:
+	iput(root_inode);
+jffs_sb_err2:
+	jffs_cleanup_control((struct jffs_control *)sb->u.generic_sbp);
+jffs_sb_err1:
+	printk(KERN_WARNING "JFFS: Failed to mount device %s.\n",
+	       kdevname(dev));
+	return 0;
+}
+
+
+/* This function is called when the file system is umounted.  */
+static void
+jffs_put_super(struct super_block *sb)
+{
+	struct jffs_control *c = (struct jffs_control *) sb->u.generic_sbp;
+	D1(kdev_t dev = sb->s_dev);
+
+	D2(printk("jffs_put_super()\n"));
+
+#ifdef CONFIG_JFFS_PROC_FS
+	jffs_unregister_jffs_proc_dir(c);
+#endif
+
+	if (c->gc_task) {
+		D1(printk (KERN_NOTICE "jffs_put_super(): Telling gc thread to die.\n"));
+		send_sig(SIGKILL, c->gc_task, 1);
+	}
+	wait_for_completion(&c->gc_thread_comp);
+
+	D1(printk (KERN_NOTICE "jffs_put_super(): Successfully waited on thread.\n"));
+
+	jffs_cleanup_control((struct jffs_control *)sb->u.generic_sbp);
+	D1(printk(KERN_NOTICE "JFFS: Successfully unmounted device %s.\n",
+	       kdevname(dev)));
+}
+
+
+/* This function is called when user commands like chmod, chgrp and
+   chown are executed. System calls like trunc() results in a call
+   to this function.  */
+static int
+jffs_setattr(struct dentry *dentry, struct iattr *iattr)
+{
+	struct inode *inode = dentry->d_inode;
+	struct jffs_raw_inode raw_inode;
+	struct jffs_control *c;
+	struct jffs_fmcontrol *fmc;
+	struct jffs_file *f;
+	struct jffs_node *new_node;
+	int update_all;
+	int res;
+	int recoverable = 0;
+
+	if ((res = inode_change_ok(inode, iattr)))
+		return res;
+
+	c = (struct jffs_control *)inode->i_sb->u.generic_sbp;
+	fmc = c->fmc;
+
+	D3(printk (KERN_NOTICE "notify_change(): down biglock\n"));
+	down(&fmc->biglock);
+
+	f = jffs_find_file(c, inode->i_ino);
+
+	ASSERT(if (!f) {
+		printk("jffs_setattr(): Invalid inode number: %lu\n",
+		       inode->i_ino);
+		D3(printk (KERN_NOTICE "notify_change(): up biglock\n"));
+		up(&fmc->biglock);
+		return -EINVAL;
+	});
+
+	D1(printk("***jffs_setattr(): file: \"%s\", ino: %u\n",
+		  f->name, f->ino));
+
+	update_all = iattr->ia_valid & ATTR_FORCE;
+
+	if ( (update_all || iattr->ia_valid & ATTR_SIZE)
+	     && (iattr->ia_size + 128 < f->size) ) {
+		/* We're shrinking the file by more than 128 bytes.
+		   We'll be able to GC and recover this space, so
+		   allow it to go into the reserved space. */
+		recoverable = 1;
+        }
+
+	if (!(new_node = jffs_alloc_node())) {
+		D(printk("jffs_setattr(): Allocation failed!\n"));
+		D3(printk (KERN_NOTICE "notify_change(): up biglock\n"));
+		up(&fmc->biglock);
+		return -ENOMEM;
+	}
+
+	new_node->data_offset = 0;
+	new_node->removed_size = 0;
+	raw_inode.magic = JFFS_MAGIC_BITMASK;
+	raw_inode.ino = f->ino;
+	raw_inode.pino = f->pino;
+	raw_inode.mode = f->mode;
+	raw_inode.uid = f->uid;
+	raw_inode.gid = f->gid;
+	raw_inode.atime = f->atime;
+	raw_inode.mtime = f->mtime;
+	raw_inode.ctime = f->ctime;
+	raw_inode.dsize = 0;
+	raw_inode.offset = 0;
+	raw_inode.rsize = 0;
+	raw_inode.dsize = 0;
+	raw_inode.nsize = f->nsize;
+	raw_inode.nlink = f->nlink;
+	raw_inode.spare = 0;
+	raw_inode.rename = 0;
+	raw_inode.deleted = 0;
+
+	if (update_all || iattr->ia_valid & ATTR_MODE) {
+		raw_inode.mode = iattr->ia_mode;
+		inode->i_mode = iattr->ia_mode;
+	}
+	if (update_all || iattr->ia_valid & ATTR_UID) {
+		raw_inode.uid = iattr->ia_uid;
+		inode->i_uid = iattr->ia_uid;
+	}
+	if (update_all || iattr->ia_valid & ATTR_GID) {
+		raw_inode.gid = iattr->ia_gid;
+		inode->i_gid = iattr->ia_gid;
+	}
+	if (update_all || iattr->ia_valid & ATTR_SIZE) {
+		int len;
+		D1(printk("jffs_notify_change(): Changing size "
+			  "to %lu bytes!\n", (long)iattr->ia_size));
+		raw_inode.offset = iattr->ia_size;
+
+		/* Calculate how many bytes need to be removed from
+		   the end.  */
+		if (f->size < iattr->ia_size) {
+			len = 0;
+		}
+		else {
+			len = f->size - iattr->ia_size;
+		}
+
+		raw_inode.rsize = len;
+
+		/* The updated node will be a removal node, with
+		   base at the new size and size of the nbr of bytes
+		   to be removed.  */
+		new_node->data_offset = iattr->ia_size;
+		new_node->removed_size = len;
+		inode->i_size = iattr->ia_size;
+		inode->i_blocks = (inode->i_size + 511) >> 9;
+
+		if (len) {
+			invalidate_inode_pages(inode);
+		}
+		inode->i_ctime = CURRENT_TIME;
+		inode->i_mtime = inode->i_ctime;
+	}
+	if (update_all || iattr->ia_valid & ATTR_ATIME) {
+		raw_inode.atime = iattr->ia_atime;
+		inode->i_atime = iattr->ia_atime;
+	}
+	if (update_all || iattr->ia_valid & ATTR_MTIME) {
+		raw_inode.mtime = iattr->ia_mtime;
+		inode->i_mtime = iattr->ia_mtime;
+	}
+	if (update_all || iattr->ia_valid & ATTR_CTIME) {
+		raw_inode.ctime = iattr->ia_ctime;
+		inode->i_ctime = iattr->ia_ctime;
+	}
+
+	/* Write this node to the flash.  */
+	if ((res = jffs_write_node(c, new_node, &raw_inode, f->name, 0, recoverable, f)) < 0) {
+		D(printk("jffs_notify_change(): The write failed!\n"));
+		jffs_free_node(new_node);
+		D3(printk (KERN_NOTICE "n_c(): up biglock\n"));
+		up(&c->fmc->biglock);
+		return res;
+	}
+
+	jffs_insert_node(c, f, &raw_inode, 0, new_node);
+
+	mark_inode_dirty(inode);
+	D3(printk (KERN_NOTICE "n_c(): up biglock\n"));
+	up(&c->fmc->biglock);
+	return 0;
+} /* jffs_notify_change()  */
+
+
+struct inode *
+jffs_new_inode(const struct inode * dir, struct jffs_raw_inode *raw_inode,
+	       int * err)
+{
+	struct super_block * sb;
+	struct inode * inode;
+	struct jffs_control *c;
+	struct jffs_file *f;
+
+	sb = dir->i_sb;
+	inode = new_inode(sb);
+	if (!inode) {
+		*err = -ENOMEM;
+		return NULL;
+	}
+
+	c = (struct jffs_control *)sb->u.generic_sbp;
+
+	inode->i_ino = raw_inode->ino;
+	inode->i_mode = raw_inode->mode;
+	inode->i_nlink = raw_inode->nlink;
+	inode->i_uid = raw_inode->uid;
+	inode->i_gid = raw_inode->gid;
+	inode->i_rdev = 0;
+	inode->i_size = raw_inode->dsize;
+	inode->i_atime = raw_inode->atime;
+	inode->i_mtime = raw_inode->mtime;
+	inode->i_ctime = raw_inode->ctime;
+	inode->i_blksize = PAGE_SIZE;
+	inode->i_blocks = (inode->i_size + 511) >> 9;
+	inode->i_version = 0;
+
+	f = jffs_find_file(c, raw_inode->ino);
+
+	inode->u.generic_ip = (void *)f;
+	insert_inode_hash(inode);
+
+	return inode;
+}
+
+/* Get statistics of the file system.  */
+int
+jffs_statfs(struct super_block *sb, struct statfs *buf)
+{
+	struct jffs_control *c = (struct jffs_control *) sb->u.generic_sbp;
+	struct jffs_fmcontrol *fmc = c->fmc;
+
+	D2(printk("jffs_statfs()\n"));
+
+	buf->f_type = JFFS_MAGIC_SB_BITMASK;
+	buf->f_bsize = PAGE_CACHE_SIZE;
+	buf->f_blocks = (fmc->flash_size / PAGE_CACHE_SIZE)
+		       - (fmc->min_free_size / PAGE_CACHE_SIZE);
+	buf->f_bfree = (jffs_free_size1(fmc) + jffs_free_size2(fmc) +
+		       fmc->dirty_size - fmc->min_free_size)
+			       >> PAGE_CACHE_SHIFT;
+	buf->f_bavail = buf->f_bfree;
+
+	/* Find out how many files there are in the filesystem.  */
+	buf->f_files = jffs_foreach_file(c, jffs_file_count);
+	buf->f_ffree = buf->f_bfree;
+	/* buf->f_fsid = 0; */
+	buf->f_namelen = JFFS_MAX_NAME_LEN;
+	return 0;
+}
+
+
+/* Rename a file.  */
+int
+jffs_rename(struct inode *old_dir, struct dentry *old_dentry,
+	    struct inode *new_dir, struct dentry *new_dentry)
+{
+	struct jffs_raw_inode raw_inode;
+	struct jffs_control *c;
+	struct jffs_file *old_dir_f;
+	struct jffs_file *new_dir_f;
+	struct jffs_file *del_f;
+	struct jffs_file *f;
+	struct jffs_node *node;
+	struct inode *inode;
+	int result = 0;
+	__u32 rename_data = 0;
+
+	D2(printk("***jffs_rename()\n"));
+
+	D(printk("jffs_rename(): old_dir: 0x%p, old name: 0x%p, "
+		 "new_dir: 0x%p, new name: 0x%p\n",
+		 old_dir, old_dentry->d_name.name,
+		 new_dir, new_dentry->d_name.name));
+
+	c = (struct jffs_control *)old_dir->i_sb->u.generic_sbp;
+	ASSERT(if (!c) {
+		printk(KERN_ERR "jffs_rename(): The old_dir inode "
+		       "didn't have a reference to a jffs_file struct\n");
+		return -EIO;
+	});
+
+	result = -ENOTDIR;
+	if (!(old_dir_f = (struct jffs_file *)old_dir->u.generic_ip)) {
+		D(printk("jffs_rename(): Old dir invalid.\n"));
+		goto jffs_rename_end;
+	}
+
+	/* Try to find the file to move.  */
+	result = -ENOENT;
+	if (!(f = jffs_find_child(old_dir_f, old_dentry->d_name.name,
+				  old_dentry->d_name.len))) {
+		goto jffs_rename_end;
+	}
+
+	/* Find the new directory.  */
+	result = -ENOTDIR;
+	if (!(new_dir_f = (struct jffs_file *)new_dir->u.generic_ip)) {
+		D(printk("jffs_rename(): New dir invalid.\n"));
+		goto jffs_rename_end;
+	}
+	D3(printk (KERN_NOTICE "rename(): down biglock\n"));
+	down(&c->fmc->biglock);
+	/* Create a node and initialize as much as needed.  */
+	result = -ENOMEM;
+	if (!(node = jffs_alloc_node())) {
+		D(printk("jffs_rename(): Allocation failed: node == 0\n"));
+		goto jffs_rename_end;
+	}
+	node->data_offset = 0;
+	node->removed_size = 0;
+
+	/* Initialize the raw inode.  */
+	raw_inode.magic = JFFS_MAGIC_BITMASK;
+	raw_inode.ino = f->ino;
+	raw_inode.pino = new_dir_f->ino;
+/*  	raw_inode.version = f->highest_version + 1; */
+	raw_inode.mode = f->mode;
+	raw_inode.uid = current->fsuid;
+	raw_inode.gid = current->fsgid;
+#if 0
+	raw_inode.uid = f->uid;
+	raw_inode.gid = f->gid;
+#endif
+	raw_inode.atime = CURRENT_TIME;
+	raw_inode.mtime = raw_inode.atime;
+	raw_inode.ctime = f->ctime;
+	raw_inode.offset = 0;
+	raw_inode.dsize = 0;
+	raw_inode.rsize = 0;
+	raw_inode.nsize = new_dentry->d_name.len;
+	raw_inode.nlink = f->nlink;
+	raw_inode.spare = 0;
+	raw_inode.rename = 0;
+	raw_inode.deleted = 0;
+
+	/* See if there already exists a file with the same name as
+	   new_name.  */
+	if ((del_f = jffs_find_child(new_dir_f, new_dentry->d_name.name,
+				     new_dentry->d_name.len))) {
+		raw_inode.rename = 1;
+		raw_inode.dsize = sizeof(__u32);
+		rename_data = del_f->ino;
+	}
+
+	/* Write the new node to the flash memory.  */
+	if ((result = jffs_write_node(c, node, &raw_inode,
+				      new_dentry->d_name.name,
+				      (unsigned char*)&rename_data, 0, f)) < 0) {
+		D(printk("jffs_rename(): Failed to write node to flash.\n"));
+		jffs_free_node(node);
+		goto jffs_rename_end;
+	}
+	raw_inode.dsize = 0;
+
+	if (raw_inode.rename) {
+		/* The file with the same name must be deleted.  */
+		//FIXME deadlock	        down(&c->fmc->gclock);
+		if ((result = jffs_remove(new_dir, new_dentry,
+					  del_f->mode)) < 0) {
+			/* This is really bad.  */
+			printk(KERN_ERR "JFFS: An error occurred in "
+			       "rename().\n");
+		}
+		//		up(&c->fmc->gclock);
+	}
+
+	if (old_dir_f != new_dir_f) {
+		/* Remove the file from its old position in the
+		   filesystem tree.  */
+		jffs_unlink_file_from_tree(f);
+	}
+
+	/* Insert the new node into the file system.  */
+	if ((result = jffs_insert_node(c, f, &raw_inode,
+				       new_dentry->d_name.name, node)) < 0) {
+		D(printk(KERN_ERR "jffs_rename(): jffs_insert_node() "
+			 "failed!\n"));
+	}
+
+	if (old_dir_f != new_dir_f) {
+		/* Insert the file to its new position in the
+		   file system.  */
+		jffs_insert_file_into_tree(f);
+	}
+
+	/* This is a kind of update of the inode we're about to make
+	   here.  This is what they do in ext2fs.  Kind of.  */
+	if ((inode = iget(new_dir->i_sb, f->ino))) {
+		inode->i_ctime = CURRENT_TIME;
+		mark_inode_dirty(inode);
+		iput(inode);
+	}
+
+jffs_rename_end:
+	D3(printk (KERN_NOTICE "rename(): up biglock\n"));
+	up(&c->fmc->biglock);
+	return result;
+} /* jffs_rename()  */
+
+
+/* Read the contents of a directory.  Used by programs like `ls'
+   for instance.  */
+static int
+jffs_readdir(struct file *filp, void *dirent, filldir_t filldir)
+{
+	struct jffs_file *f;
+	struct dentry *dentry = filp->f_dentry;
+	struct inode *inode = dentry->d_inode;
+	struct jffs_control *c = (struct jffs_control *)inode->i_sb->u.generic_sbp;
+	int j;
+	int ddino;
+	D3(printk (KERN_NOTICE "readdir(): down biglock\n"));
+	down(&c->fmc->biglock);
+
+	D2(printk("jffs_readdir(): inode: 0x%p, filp: 0x%p\n", inode, filp));
+	if (filp->f_pos == 0) {
+		D3(printk("jffs_readdir(): \".\" %lu\n", inode->i_ino));
+		if (filldir(dirent, ".", 1, filp->f_pos, inode->i_ino, DT_DIR) < 0) {
+			D3(printk (KERN_NOTICE "readdir(): up biglock\n"));
+			up(&c->fmc->biglock);
+			return 0;
+		}
+		filp->f_pos = 1;
+	}
+	if (filp->f_pos == 1) {
+		if (inode->i_ino == JFFS_MIN_INO) {
+			ddino = JFFS_MIN_INO;
+		}
+		else {
+			ddino = ((struct jffs_file *)
+				 inode->u.generic_ip)->pino;
+		}
+		D3(printk("jffs_readdir(): \"..\" %u\n", ddino));
+		if (filldir(dirent, "..", 2, filp->f_pos, ddino, DT_DIR) < 0) {
+			D3(printk (KERN_NOTICE "readdir(): up biglock\n"));
+			up(&c->fmc->biglock);
+			return 0;
+		}
+		filp->f_pos++;
+	}
+	f = ((struct jffs_file *)inode->u.generic_ip)->children;
+
+	j = 2;
+	while(f && (f->deleted || j++ < filp->f_pos )) {
+		f = f->sibling_next;
+	}
+
+	while (f) {
+		D3(printk("jffs_readdir(): \"%s\" ino: %u\n",
+			  (f->name ? f->name : ""), f->ino));
+		if (filldir(dirent, f->name, f->nsize,
+			    filp->f_pos , f->ino, DT_UNKNOWN) < 0) {
+		        D3(printk (KERN_NOTICE "readdir(): up biglock\n"));
+			up(&c->fmc->biglock);
+			return 0;
+		}
+		filp->f_pos++;
+		do {
+			f = f->sibling_next;
+		} while(f && f->deleted);
+	}
+	D3(printk (KERN_NOTICE "readdir(): up biglock\n"));
+	up(&c->fmc->biglock);
+	return filp->f_pos;
+} /* jffs_readdir()  */
+
+
+/* Find a file in a directory. If the file exists, return its
+   corresponding dentry.  */
+static struct dentry *
+jffs_lookup(struct inode *dir, struct dentry *dentry)
+{
+	struct jffs_file *d;
+	struct jffs_file *f;
+	struct jffs_control *c = (struct jffs_control *)dir->i_sb->u.generic_sbp;
+	int len;
+	int r = 0;
+	const char *name;
+	struct inode *inode = NULL;
+
+	len = dentry->d_name.len;
+	name = dentry->d_name.name;
+
+	D3({
+		char *s = (char *)kmalloc(len + 1, GFP_KERNEL);
+		memcpy(s, name, len);
+		s[len] = '\0';
+		printk("jffs_lookup(): dir: 0x%p, name: \"%s\"\n", dir, s);
+		kfree(s);
+	});
+
+	D3(printk (KERN_NOTICE "lookup(): down biglock\n"));
+	down(&c->fmc->biglock);
+
+	r = -ENAMETOOLONG;
+	if (len > JFFS_MAX_NAME_LEN) {
+		goto jffs_lookup_end;
+	}
+
+	r = -EACCES;
+	if (!(d = (struct jffs_file *)dir->u.generic_ip)) {
+		D(printk("jffs_lookup(): No such inode! (%lu)\n",
+			 dir->i_ino));
+		goto jffs_lookup_end;
+	}
+
+	/* Get the corresponding inode to the file.  */
+
+	/* iget calls jffs_read_inode, so we need to drop the biglock
+           before calling iget.  Unfortunately, the GC has a tendency
+           to sneak in here, because iget sometimes calls schedule ().
+	*/
+
+	if ((len == 1) && (name[0] == '.')) {
+		D3(printk (KERN_NOTICE "lookup(): up biglock\n"));
+		up(&c->fmc->biglock);
+		if (!(inode = iget(dir->i_sb, d->ino))) {
+			D(printk("jffs_lookup(): . iget() ==> NULL\n"));
+			goto jffs_lookup_end_no_biglock;
+		}
+		D3(printk (KERN_NOTICE "lookup(): down biglock\n"));
+		down(&c->fmc->biglock);
+	} else if ((len == 2) && (name[0] == '.') && (name[1] == '.')) {
+	        D3(printk (KERN_NOTICE "lookup(): up biglock\n"));
+		up(&c->fmc->biglock);
+ 		if (!(inode = iget(dir->i_sb, d->pino))) {
+			D(printk("jffs_lookup(): .. iget() ==> NULL\n"));
+			goto jffs_lookup_end_no_biglock;
+		}
+		D3(printk (KERN_NOTICE "lookup(): down biglock\n"));
+		down(&c->fmc->biglock);
+	} else if ((f = jffs_find_child(d, name, len))) {
+	        D3(printk (KERN_NOTICE "lookup(): up biglock\n"));
+		up(&c->fmc->biglock);
+		if (!(inode = iget(dir->i_sb, f->ino))) {
+			D(printk("jffs_lookup(): iget() ==> NULL\n"));
+			goto jffs_lookup_end_no_biglock;
+		}
+		D3(printk (KERN_NOTICE "lookup(): down biglock\n"));
+		down(&c->fmc->biglock);
+	} else {
+		D3(printk("jffs_lookup(): Couldn't find the file. "
+			  "f = 0x%p, name = \"%s\", d = 0x%p, d->ino = %u\n",
+			  f, name, d, d->ino));
+		inode = NULL;
+	}
+
+	d_add(dentry, inode);
+	D3(printk (KERN_NOTICE "lookup(): up biglock\n"));
+	up(&c->fmc->biglock);
+	return NULL;
+
+jffs_lookup_end:
+	D3(printk (KERN_NOTICE "lookup(): up biglock\n"));
+	up(&c->fmc->biglock);
+
+jffs_lookup_end_no_biglock:
+	return ERR_PTR(r);
+} /* jffs_lookup()  */
+
+
+/* Try to read a page of data from a file.  */
+static int
+jffs_do_readpage_nolock(struct file *file, struct page *page)
+{
+	void *buf;
+	unsigned long read_len;
+	int result;
+	struct inode *inode = (struct inode*)page->mapping->host;
+	struct jffs_file *f = (struct jffs_file *)inode->u.generic_ip;
+	struct jffs_control *c = (struct jffs_control *)inode->i_sb->u.generic_sbp;
+	int r;
+	loff_t offset;
+
+	D2(printk("***jffs_readpage(): file = \"%s\", page->index = %lu\n",
+		  (f->name ? f->name : ""), (long)page->index));
+
+	get_page(page);
+	/* Don't LockPage(page), should be locked already */
+	buf = page_address(page);
+	ClearPageUptodate(page);
+	ClearPageError(page);
+
+	D3(printk (KERN_NOTICE "readpage(): down biglock\n"));
+	down(&c->fmc->biglock);
+
+	read_len = 0;
+	result = 0;
+
+	offset = page->index << PAGE_CACHE_SHIFT;
+	if (offset < inode->i_size) {
+		read_len = min_t(long, inode->i_size - offset, PAGE_SIZE);
+		r = jffs_read_data(f, buf, offset, read_len);
+		if (r != read_len) {
+			result = -EIO;
+			D(
+			        printk("***jffs_readpage(): Read error! "
+				       "Wanted to read %lu bytes but only "
+				       "read %d bytes.\n", read_len, r);
+			  );
+		}
+
+	}
+
+	/* This handles the case of partial or no read in above */
+	if(read_len < PAGE_SIZE)
+	        memset(buf + read_len, 0, PAGE_SIZE - read_len);
+
+	D3(printk (KERN_NOTICE "readpage(): up biglock\n"));
+	up(&c->fmc->biglock);
+
+	if (result) {
+	        SetPageError(page);
+	}else {
+	        SetPageUptodate(page);	        
+	}
+	flush_dcache_page(page);
+
+	put_page(page);
+
+	D3(printk("jffs_readpage(): Leaving...\n"));
+
+	return result;
+} /* jffs_do_readpage_nolock()  */
+
+static int jffs_readpage(struct file *file, struct page *page)
+{
+	int ret = jffs_do_readpage_nolock(file, page);
+	UnlockPage(page);
+	return ret;
+}
+
+/* Create a new directory.  */
+static int
+jffs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+{
+	struct jffs_raw_inode raw_inode;
+	struct jffs_control *c;
+	struct jffs_node *node;
+	struct jffs_file *dir_f;
+	struct inode *inode;
+	int dir_mode;
+	int result = 0;
+	int err;
+
+	D1({
+	        int len = dentry->d_name.len;
+		char *_name = (char *) kmalloc(len + 1, GFP_KERNEL);
+		memcpy(_name, dentry->d_name.name, len);
+		_name[len] = '\0';
+		printk("***jffs_mkdir(): dir = 0x%p, name = \"%s\", "
+		       "len = %d, mode = 0x%08x\n", dir, _name, len, mode);
+		kfree(_name);
+	});
+
+	dir_f = (struct jffs_file *)dir->u.generic_ip;
+
+	ASSERT(if (!dir_f) {
+		printk(KERN_ERR "jffs_mkdir(): No reference to a "
+		       "jffs_file struct in inode.\n");
+		return -EIO;
+	});
+
+	c = dir_f->c;
+	D3(printk (KERN_NOTICE "mkdir(): down biglock\n"));
+	down(&c->fmc->biglock);
+
+	dir_mode = S_IFDIR | (mode & (S_IRWXUGO|S_ISVTX)
+			      & ~current->fs->umask);
+	if (dir->i_mode & S_ISGID) {
+		dir_mode |= S_ISGID;
+	}
+
+	/* Create a node and initialize it as much as needed.  */
+	if (!(node = jffs_alloc_node())) {
+		D(printk("jffs_mkdir(): Allocation failed: node == 0\n"));
+		result = -ENOMEM;
+		goto jffs_mkdir_end;
+	}
+	node->data_offset = 0;
+	node->removed_size = 0;
+
+	/* Initialize the raw inode.  */
+	raw_inode.magic = JFFS_MAGIC_BITMASK;
+	raw_inode.ino = c->next_ino++;
+	raw_inode.pino = dir_f->ino;
+	raw_inode.version = 1;
+	raw_inode.mode = dir_mode;
+	raw_inode.uid = current->fsuid;
+	raw_inode.gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid;
+	/*	raw_inode.gid = current->fsgid; */
+	raw_inode.atime = CURRENT_TIME;
+	raw_inode.mtime = raw_inode.atime;
+	raw_inode.ctime = raw_inode.atime;
+	raw_inode.offset = 0;
+	raw_inode.dsize = 0;
+	raw_inode.rsize = 0;
+	raw_inode.nsize = dentry->d_name.len;
+	raw_inode.nlink = 1;
+	raw_inode.spare = 0;
+	raw_inode.rename = 0;
+	raw_inode.deleted = 0;
+
+	/* Write the new node to the flash.  */
+	if ((result = jffs_write_node(c, node, &raw_inode,
+				      dentry->d_name.name, 0, 0, NULL)) < 0) {
+		D(printk("jffs_mkdir(): jffs_write_node() failed.\n"));
+		jffs_free_node(node);
+		goto jffs_mkdir_end;
+	}
+
+	/* Insert the new node into the file system.  */
+	if ((result = jffs_insert_node(c, 0, &raw_inode, dentry->d_name.name,
+				       node)) < 0) {
+		goto jffs_mkdir_end;
+	}
+
+	inode = jffs_new_inode(dir, &raw_inode, &err);
+	if (inode == NULL) {
+		result = err;
+		goto jffs_mkdir_end;
+	}
+
+	inode->i_op = &jffs_dir_inode_operations;
+	inode->i_fop = &jffs_dir_operations;
+
+	mark_inode_dirty(dir);
+	d_instantiate(dentry, inode);
+
+	result = 0;
+jffs_mkdir_end:
+	D3(printk (KERN_NOTICE "mkdir(): up biglock\n"));
+	up(&c->fmc->biglock);
+	return result;
+} /* jffs_mkdir()  */
+
+
+/* Remove a directory.  */
+static int
+jffs_rmdir(struct inode *dir, struct dentry *dentry)
+{
+	struct jffs_control *c = (struct jffs_control *)dir->i_sb->u.generic_sbp;
+	int ret;
+	D3(printk("***jffs_rmdir()\n"));
+	D3(printk (KERN_NOTICE "rmdir(): down biglock\n"));
+	down(&c->fmc->biglock);
+	ret = jffs_remove(dir, dentry, S_IFDIR);
+	D3(printk (KERN_NOTICE "rmdir(): up biglock\n"));
+	up(&c->fmc->biglock);
+	return ret;
+}
+
+
+/* Remove any kind of file except for directories.  */
+static int
+jffs_unlink(struct inode *dir, struct dentry *dentry)
+{
+	struct jffs_control *c = (struct jffs_control *)dir->i_sb->u.generic_sbp;
+	int ret; 
+
+	D3(printk("***jffs_unlink()\n"));
+	D3(printk (KERN_NOTICE "unlink(): down biglock\n"));
+	down(&c->fmc->biglock);
+	ret = jffs_remove(dir, dentry, 0);
+	D3(printk (KERN_NOTICE "unlink(): up biglock\n"));
+	up(&c->fmc->biglock);
+	return ret;
+}
+
+
+/* Remove a JFFS entry, i.e. plain files, directories, etc.  Here we
+   shouldn't test for free space on the device.  */
+static int
+jffs_remove(struct inode *dir, struct dentry *dentry, int type)
+{
+	struct jffs_raw_inode raw_inode;
+	struct jffs_control *c;
+	struct jffs_file *dir_f; /* The file-to-remove's parent.  */
+	struct jffs_file *del_f; /* The file to remove.  */
+	struct jffs_node *del_node;
+	struct inode *inode = 0;
+	int result = 0;
+
+	D1({
+		int len = dentry->d_name.len;
+		const char *name = dentry->d_name.name;
+		char *_name = (char *) kmalloc(len + 1, GFP_KERNEL);
+		memcpy(_name, name, len);
+		_name[len] = '\0';
+		printk("***jffs_remove(): file = \"%s\", ino = %ld\n", _name, dentry->d_inode->i_ino);
+		kfree(_name);
+	});
+
+	dir_f = (struct jffs_file *) dir->u.generic_ip;
+	c = dir_f->c;
+
+	result = -ENOENT;
+	if (!(del_f = jffs_find_child(dir_f, dentry->d_name.name,
+				      dentry->d_name.len))) {
+		D(printk("jffs_remove(): jffs_find_child() failed.\n"));
+		goto jffs_remove_end;
+	}
+
+	if (S_ISDIR(type)) {
+		struct jffs_file *child = del_f->children;
+		while(child) {
+			if( !child->deleted ) {
+				result = -ENOTEMPTY;
+				goto jffs_remove_end;
+			}
+			child = child->sibling_next;
+		}
+	}            
+	else if (S_ISDIR(del_f->mode)) {
+		D(printk("jffs_remove(): node is a directory "
+			 "but it shouldn't be.\n"));
+		result = -EPERM;
+		goto jffs_remove_end;
+	}
+
+	inode = dentry->d_inode;
+
+	result = -EIO;
+	if (del_f->ino != inode->i_ino)
+		goto jffs_remove_end;
+
+	if (!inode->i_nlink) {
+		printk("Deleting nonexistent file inode: %lu, nlink: %d\n",
+		       inode->i_ino, inode->i_nlink);
+		inode->i_nlink=1;
+	}
+
+	/* Create a node for the deletion.  */
+	result = -ENOMEM;
+	if (!(del_node = jffs_alloc_node())) {
+		D(printk("jffs_remove(): Allocation failed!\n"));
+		goto jffs_remove_end;
+	}
+	del_node->data_offset = 0;
+	del_node->removed_size = 0;
+
+	/* Initialize the raw inode.  */
+	raw_inode.magic = JFFS_MAGIC_BITMASK;
+	raw_inode.ino = del_f->ino;
+	raw_inode.pino = del_f->pino;
+/*  	raw_inode.version = del_f->highest_version + 1; */
+	raw_inode.mode = del_f->mode;
+	raw_inode.uid = current->fsuid;
+	raw_inode.gid = current->fsgid;
+	raw_inode.atime = CURRENT_TIME;
+	raw_inode.mtime = del_f->mtime;
+	raw_inode.ctime = raw_inode.atime;
+	raw_inode.offset = 0;
+	raw_inode.dsize = 0;
+	raw_inode.rsize = 0;
+	raw_inode.nsize = 0;
+	raw_inode.nlink = del_f->nlink;
+	raw_inode.spare = 0;
+	raw_inode.rename = 0;
+	raw_inode.deleted = 1;
+
+	/* Write the new node to the flash memory.  */
+	if (jffs_write_node(c, del_node, &raw_inode, 0, 0, 1, del_f) < 0) {
+		jffs_free_node(del_node);
+		result = -EIO;
+		goto jffs_remove_end;
+	}
+
+	/* Update the file.  This operation will make the file disappear
+	   from the in-memory file system structures.  */
+	jffs_insert_node(c, del_f, &raw_inode, 0, del_node);
+
+	dir->i_version = ++event;
+	dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+	mark_inode_dirty(dir);
+	inode->i_nlink--;
+	inode->i_ctime = dir->i_ctime;
+	mark_inode_dirty(inode);
+
+	d_delete(dentry);	/* This also frees the inode */
+
+	result = 0;
+jffs_remove_end:
+	return result;
+} /* jffs_remove()  */
+
+
+static int
+jffs_mknod(struct inode *dir, struct dentry *dentry, int mode, int rdev)
+{
+	struct jffs_raw_inode raw_inode;
+	struct jffs_file *dir_f;
+	struct jffs_node *node = 0;
+	struct jffs_control *c;
+	struct inode *inode;
+	int result = 0;
+	kdev_t dev = to_kdev_t(rdev);
+	int err;
+
+	D1(printk("***jffs_mknod()\n"));
+
+	dir_f = (struct jffs_file *)dir->u.generic_ip;
+	c = dir_f->c;
+
+	D3(printk (KERN_NOTICE "mknod(): down biglock\n"));
+	down(&c->fmc->biglock);
+
+	/* Create and initialize a new node.  */
+	if (!(node = jffs_alloc_node())) {
+		D(printk("jffs_mknod(): Allocation failed!\n"));
+		result = -ENOMEM;
+		goto jffs_mknod_err;
+	}
+	node->data_offset = 0;
+	node->removed_size = 0;
+
+	/* Initialize the raw inode.  */
+	raw_inode.magic = JFFS_MAGIC_BITMASK;
+	raw_inode.ino = c->next_ino++;
+	raw_inode.pino = dir_f->ino;
+	raw_inode.version = 1;
+	raw_inode.mode = mode;
+	raw_inode.uid = current->fsuid;
+	raw_inode.gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid;
+	/*	raw_inode.gid = current->fsgid; */
+	raw_inode.atime = CURRENT_TIME;
+	raw_inode.mtime = raw_inode.atime;
+	raw_inode.ctime = raw_inode.atime;
+	raw_inode.offset = 0;
+	raw_inode.dsize = sizeof(kdev_t);
+	raw_inode.rsize = 0;
+	raw_inode.nsize = dentry->d_name.len;
+	raw_inode.nlink = 1;
+	raw_inode.spare = 0;
+	raw_inode.rename = 0;
+	raw_inode.deleted = 0;
+
+	/* Write the new node to the flash.  */
+	if ((err = jffs_write_node(c, node, &raw_inode, dentry->d_name.name,
+				   (unsigned char *)&dev, 0, NULL)) < 0) {
+		D(printk("jffs_mknod(): jffs_write_node() failed.\n"));
+		result = err;
+		goto jffs_mknod_err;
+	}
+
+	/* Insert the new node into the file system.  */
+	if ((err = jffs_insert_node(c, 0, &raw_inode, dentry->d_name.name,
+				    node)) < 0) {
+		result = err;
+		goto jffs_mknod_end;
+	}
+
+	inode = jffs_new_inode(dir, &raw_inode, &err);
+	if (inode == NULL) {
+		result = err;
+		goto jffs_mknod_end;
+	}
+
+	init_special_inode(inode, mode, rdev);
+
+	d_instantiate(dentry, inode);
+
+	goto jffs_mknod_end;
+
+jffs_mknod_err:
+	if (node) {
+		jffs_free_node(node);
+	}
+
+jffs_mknod_end:
+	D3(printk (KERN_NOTICE "mknod(): up biglock\n"));
+	up(&c->fmc->biglock);
+	return result;
+} /* jffs_mknod()  */
+
+
+static int
+jffs_symlink(struct inode *dir, struct dentry *dentry, const char *symname)
+{
+	struct jffs_raw_inode raw_inode;
+	struct jffs_control *c;
+	struct jffs_file *dir_f;
+	struct jffs_node *node;
+	struct inode *inode;
+
+	int symname_len = strlen(symname);
+	int err;
+
+	D1({
+		int len = dentry->d_name.len; 
+		char *_name = (char *)kmalloc(len + 1, GFP_KERNEL);
+		char *_symname = (char *)kmalloc(symname_len + 1, GFP_KERNEL);
+		memcpy(_name, dentry->d_name.name, len);
+		_name[len] = '\0';
+		memcpy(_symname, symname, symname_len);
+		_symname[symname_len] = '\0';
+		printk("***jffs_symlink(): dir = 0x%p, "
+		       "dentry->dname.name = \"%s\", "
+		       "symname = \"%s\"\n", dir, _name, _symname);
+		kfree(_name);
+		kfree(_symname);
+	});
+
+	dir_f = (struct jffs_file *)dir->u.generic_ip;
+	ASSERT(if (!dir_f) {
+		printk(KERN_ERR "jffs_symlink(): No reference to a "
+		       "jffs_file struct in inode.\n");
+		return -EIO;
+	});
+
+	c = dir_f->c;
+
+	/* Create a node and initialize it as much as needed.  */
+	if (!(node = jffs_alloc_node())) {
+		D(printk("jffs_symlink(): Allocation failed: node = NULL\n"));
+		return -ENOMEM;
+	}
+	D3(printk (KERN_NOTICE "symlink(): down biglock\n"));
+	down(&c->fmc->biglock);
+
+	node->data_offset = 0;
+	node->removed_size = 0;
+
+	/* Initialize the raw inode.  */
+	raw_inode.magic = JFFS_MAGIC_BITMASK;
+	raw_inode.ino = c->next_ino++;
+	raw_inode.pino = dir_f->ino;
+	raw_inode.version = 1;
+	raw_inode.mode = S_IFLNK | S_IRWXUGO;
+	raw_inode.uid = current->fsuid;
+	raw_inode.gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid;
+	raw_inode.atime = CURRENT_TIME;
+	raw_inode.mtime = raw_inode.atime;
+	raw_inode.ctime = raw_inode.atime;
+	raw_inode.offset = 0;
+	raw_inode.dsize = symname_len;
+	raw_inode.rsize = 0;
+	raw_inode.nsize = dentry->d_name.len;
+	raw_inode.nlink = 1;
+	raw_inode.spare = 0;
+	raw_inode.rename = 0;
+	raw_inode.deleted = 0;
+
+	/* Write the new node to the flash.  */
+	if ((err = jffs_write_node(c, node, &raw_inode, dentry->d_name.name,
+				   (const unsigned char *)symname, 0, NULL)) < 0) {
+		D(printk("jffs_symlink(): jffs_write_node() failed.\n"));
+		jffs_free_node(node);
+		goto jffs_symlink_end;
+	}
+
+	/* Insert the new node into the file system.  */
+	if ((err = jffs_insert_node(c, 0, &raw_inode, dentry->d_name.name,
+				    node)) < 0) {
+		goto jffs_symlink_end;
+	}
+
+	inode = jffs_new_inode(dir, &raw_inode, &err);
+	if (inode == NULL) {
+		goto jffs_symlink_end;
+	}
+	err = 0;
+	inode->i_op = &page_symlink_inode_operations;
+	inode->i_mapping->a_ops = &jffs_address_operations;
+
+	d_instantiate(dentry, inode);
+ jffs_symlink_end:
+	D3(printk (KERN_NOTICE "symlink(): up biglock\n"));
+	up(&c->fmc->biglock);
+	return err;
+} /* jffs_symlink()  */
+
+
+/* Create an inode inside a JFFS directory (dir) and return it.
+ *
+ * By the time this is called, we already have created
+ * the directory cache entry for the new file, but it
+ * is so far negative - it has no inode.
+ *
+ * If the create succeeds, we fill in the inode information
+ * with d_instantiate().
+ */
+static int
+jffs_create(struct inode *dir, struct dentry *dentry, int mode)
+{
+	struct jffs_raw_inode raw_inode;
+	struct jffs_control *c;
+	struct jffs_node *node;
+	struct jffs_file *dir_f; /* JFFS representation of the directory.  */
+	struct inode *inode;
+	int err;
+
+	D1({
+		int len = dentry->d_name.len;
+		char *s = (char *)kmalloc(len + 1, GFP_KERNEL);
+		memcpy(s, dentry->d_name.name, len);
+		s[len] = '\0';
+		printk("jffs_create(): dir: 0x%p, name: \"%s\"\n", dir, s);
+		kfree(s);
+	});
+
+	dir_f = (struct jffs_file *)dir->u.generic_ip;
+	ASSERT(if (!dir_f) {
+		printk(KERN_ERR "jffs_create(): No reference to a "
+		       "jffs_file struct in inode.\n");
+		return -EIO;
+	});
+
+	c = dir_f->c;
+
+	/* Create a node and initialize as much as needed.  */
+	if (!(node = jffs_alloc_node())) {
+		D(printk("jffs_create(): Allocation failed: node == 0\n"));
+		return -ENOMEM;
+	}
+	D3(printk (KERN_NOTICE "create(): down biglock\n"));
+	down(&c->fmc->biglock);
+
+	node->data_offset = 0;
+	node->removed_size = 0;
+
+	/* Initialize the raw inode.  */
+	raw_inode.magic = JFFS_MAGIC_BITMASK;
+	raw_inode.ino = c->next_ino++;
+	raw_inode.pino = dir_f->ino;
+	raw_inode.version = 1;
+	raw_inode.mode = mode;
+	raw_inode.uid = current->fsuid;
+	raw_inode.gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid;
+	raw_inode.atime = CURRENT_TIME;
+	raw_inode.mtime = raw_inode.atime;
+	raw_inode.ctime = raw_inode.atime;
+	raw_inode.offset = 0;
+	raw_inode.dsize = 0;
+	raw_inode.rsize = 0;
+	raw_inode.nsize = dentry->d_name.len;
+	raw_inode.nlink = 1;
+	raw_inode.spare = 0;
+	raw_inode.rename = 0;
+	raw_inode.deleted = 0;
+
+	/* Write the new node to the flash.  */
+	if ((err = jffs_write_node(c, node, &raw_inode,
+				   dentry->d_name.name, 0, 0, NULL)) < 0) {
+		D(printk("jffs_create(): jffs_write_node() failed.\n"));
+		jffs_free_node(node);
+		goto jffs_create_end;
+	}
+
+	/* Insert the new node into the file system.  */
+	if ((err = jffs_insert_node(c, 0, &raw_inode, dentry->d_name.name,
+				    node)) < 0) {
+		goto jffs_create_end;
+	}
+
+	/* Initialize an inode.  */
+	inode = jffs_new_inode(dir, &raw_inode, &err);
+	if (inode == NULL) {
+		goto jffs_create_end;
+	}
+	err = 0;
+	inode->i_op = &jffs_file_inode_operations;
+	inode->i_fop = &jffs_file_operations;
+	inode->i_mapping->a_ops = &jffs_address_operations;
+	inode->i_mapping->nrpages = 0;
+
+	d_instantiate(dentry, inode);
+ jffs_create_end:
+	D3(printk (KERN_NOTICE "create(): up biglock\n"));
+	up(&c->fmc->biglock);
+	return err;
+} /* jffs_create()  */
+
+
+/* Write, append or rewrite data to an existing file.  */
+static ssize_t
+jffs_file_write(struct file *filp, const char *buf, size_t count,
+		loff_t *ppos)
+{
+	struct jffs_raw_inode raw_inode;
+	struct jffs_control *c;
+	struct jffs_file *f;
+	struct jffs_node *node;
+	struct dentry *dentry = filp->f_dentry;
+	struct inode *inode = dentry->d_inode;
+	int recoverable = 0;
+	size_t written = 0;
+	__u32 thiscount = count;
+	loff_t pos = *ppos;
+	int err;
+
+	inode = filp->f_dentry->d_inode;
+
+	D2(printk("***jffs_file_write(): inode: 0x%p (ino: %lu), "
+		  "filp: 0x%p, buf: 0x%p, count: %d\n",
+		  inode, inode->i_ino, filp, buf, count));
+
+#if 0
+	if (inode->i_sb->s_flags & MS_RDONLY) {
+		D(printk("jffs_file_write(): MS_RDONLY\n"));
+		err = -EROFS;
+		goto out_isem;
+	}
+#endif	
+	err = -EINVAL;
+
+	if (!S_ISREG(inode->i_mode)) {
+		D(printk("jffs_file_write(): inode->i_mode == 0x%08x\n",
+				inode->i_mode));
+		goto out_isem;
+	}
+
+	if (!(f = (struct jffs_file *)inode->u.generic_ip)) {
+		D(printk("jffs_file_write(): inode->u.generic_ip = 0x%p\n",
+				inode->u.generic_ip));
+		goto out_isem;
+	}
+
+	c = f->c;
+
+	/*
+	 * This will never trigger with sane page sizes.  leave it in
+	 * anyway, since I'm thinking about how to merge larger writes
+	 * (the current idea is to poke a thread that does the actual
+	 * I/O and starts by doing a down(&inode->i_sem).  then we
+	 * would need to get the page cache pages and have a list of
+	 * I/O requests and do write-merging here.
+	 * -- prumpf
+	 */
+	thiscount = min(c->fmc->max_chunk_size - sizeof(struct jffs_raw_inode), count);
+
+	D3(printk (KERN_NOTICE "file_write(): down biglock\n"));
+	down(&c->fmc->biglock);
+
+	/* Urgh. POSIX says we can do short writes if we feel like it. 
+	 * In practice, we can't. Nothing will cope. So we loop until
+	 * we're done.
+	 *
+	 * <_Anarchy_> posix and reality are not interconnected on this issue
+	 */
+	while (count) {
+		/* Things are going to be written so we could allocate and
+		   initialize the necessary data structures now.  */
+		if (!(node = jffs_alloc_node())) {
+			D(printk("jffs_file_write(): node == 0\n"));
+			err = -ENOMEM;
+			goto out;
+		}
+
+		node->data_offset = pos;
+		node->removed_size = 0;
+
+		/* Initialize the raw inode.  */
+		raw_inode.magic = JFFS_MAGIC_BITMASK;
+		raw_inode.ino = f->ino;
+		raw_inode.pino = f->pino;
+
+		raw_inode.mode = f->mode;
+
+		raw_inode.uid = f->uid;
+		raw_inode.gid = f->gid;
+		raw_inode.atime = CURRENT_TIME;
+		raw_inode.mtime = raw_inode.atime;
+		raw_inode.ctime = f->ctime;
+		raw_inode.offset = pos;
+		raw_inode.dsize = thiscount;
+		raw_inode.rsize = 0;
+		raw_inode.nsize = f->nsize;
+		raw_inode.nlink = f->nlink;
+		raw_inode.spare = 0;
+		raw_inode.rename = 0;
+		raw_inode.deleted = 0;
+
+		if (pos < f->size) {
+			node->removed_size = raw_inode.rsize = min(thiscount, (__u32)(f->size - pos));
+
+			/* If this node is going entirely over the top of old data,
+			   we can allow it to go into the reserved space, because
+			   we know that GC can reclaim the space later.
+			*/
+			if (pos + thiscount < f->size) {
+				/* If all the data we're overwriting are _real_,
+				   not just holes, then:
+				   recoverable = 1;
+				*/
+			}
+		}
+
+		/* Write the new node to the flash.  */
+		/* NOTE: We would be quite happy if jffs_write_node() wrote a
+		   smaller node than we were expecting. There's no need for it
+		   to waste the space at the end of the flash just because it's
+		   a little smaller than what we asked for. But that's a whole
+		   new can of worms which I'm not going to open this week. 
+		   -- dwmw2.
+		*/
+		if ((err = jffs_write_node(c, node, &raw_inode, f->name,
+					   (const unsigned char *)buf,
+					   recoverable, f)) < 0) {
+			D(printk("jffs_file_write(): jffs_write_node() failed.\n"));
+			jffs_free_node(node);
+			goto out;
+		}
+
+		written += err;
+		buf += err;
+		count -= err;
+		pos += err;
+
+		/* Insert the new node into the file system.  */
+		if ((err = jffs_insert_node(c, f, &raw_inode, 0, node)) < 0) {
+			goto out;
+		}
+
+		D3(printk("jffs_file_write(): new f_pos %ld.\n", (long)pos));
+
+		thiscount = min(c->fmc->max_chunk_size - sizeof(struct jffs_raw_inode), count);
+	}
+ out:
+	D3(printk (KERN_NOTICE "file_write(): up biglock\n"));
+	up(&c->fmc->biglock);
+
+	/* Fix things in the real inode.  */
+	if (pos > inode->i_size) {
+		inode->i_size = pos;
+		inode->i_blocks = (inode->i_size + 511) >> 9;
+	}
+	inode->i_ctime = inode->i_mtime = CURRENT_TIME;
+	mark_inode_dirty(inode);
+	invalidate_inode_pages(inode);
+
+ out_isem:
+	return err;
+} /* jffs_file_write()  */
+
+static ssize_t
+jffs_prepare_write(struct file *filp, struct page *page,
+                  unsigned from, unsigned to)
+{
+	/* FIXME: we should detect some error conditions here */
+
+	/* Bugger that. We should make sure the page is uptodate */
+	if (!Page_Uptodate(page) && (from || to < PAGE_CACHE_SIZE))
+		return jffs_do_readpage_nolock(filp, page);
+
+	return 0;
+} /* jffs_prepare_write() */
+
+static ssize_t
+jffs_commit_write(struct file *filp, struct page *page,
+                 unsigned from, unsigned to)
+{
+       void *addr = page_address(page) + from;
+       /* XXX: PAGE_CACHE_SHIFT or PAGE_SHIFT */
+       loff_t pos = (page->index<<PAGE_CACHE_SHIFT) + from;
+
+       return jffs_file_write(filp, addr, to-from, &pos);
+} /* jffs_commit_write() */
+
+/* This is our ioctl() routine.  */
+static int
+jffs_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
+	   unsigned long arg)
+{
+	struct jffs_control *c;
+	int ret = 0;
+
+	D2(printk("***jffs_ioctl(): cmd = 0x%08x, arg = 0x%08lx\n",
+		  cmd, arg));
+
+	if (!(c = (struct jffs_control *)inode->i_sb->u.generic_sbp)) {
+		printk(KERN_ERR "JFFS: Bad inode in ioctl() call. "
+		       "(cmd = 0x%08x)\n", cmd);
+		return -EIO;
+	}
+	D3(printk (KERN_NOTICE "ioctl(): down biglock\n"));
+	down(&c->fmc->biglock);
+
+	switch (cmd) {
+	case JFFS_PRINT_HASH:
+		jffs_print_hash_table(c);
+		break;
+	case JFFS_PRINT_TREE:
+		jffs_print_tree(c->root, 0);
+		break;
+	case JFFS_GET_STATUS:
+		{
+			struct jffs_flash_status fst;
+			struct jffs_fmcontrol *fmc = c->fmc;
+			printk("Flash status -- ");
+			if (!access_ok(VERIFY_WRITE,
+				       (struct jffs_flash_status *)arg,
+				       sizeof(struct jffs_flash_status))) {
+				D(printk("jffs_ioctl(): Bad arg in "
+					 "JFFS_GET_STATUS ioctl!\n"));
+				ret = -EFAULT;
+				break;
+			}
+			fst.size = fmc->flash_size;
+			fst.used = fmc->used_size;
+			fst.dirty = fmc->dirty_size;
+			fst.begin = fmc->head->offset;
+			fst.end = fmc->tail->offset + fmc->tail->size;
+			printk("size: %d, used: %d, dirty: %d, "
+			       "begin: %d, end: %d\n",
+			       fst.size, fst.used, fst.dirty,
+			       fst.begin, fst.end);
+			if (copy_to_user((struct jffs_flash_status *)arg,
+					 &fst,
+					 sizeof(struct jffs_flash_status))) {
+				ret = -EFAULT;
+			}
+		}
+		break;
+	default:
+		ret = -ENOTTY;
+	}
+	D3(printk (KERN_NOTICE "ioctl(): up biglock\n"));
+	up(&c->fmc->biglock);
+	return ret;
+} /* jffs_ioctl()  */
+
+
+static struct address_space_operations jffs_address_operations = {
+	readpage: jffs_readpage,
+	prepare_write: jffs_prepare_write,
+	commit_write: jffs_commit_write,
+};
+
+static int jffs_fsync(struct file *f, struct dentry *d, int datasync)
+{
+	/* We currently have O_SYNC operations at all times.
+	   Do nothing.
+	*/
+	return 0;
+}
+
+
+extern int generic_file_open(struct inode *, struct file *) __attribute__((weak));
+extern loff_t generic_file_llseek(struct file *, loff_t, int) __attribute__((weak));
+
+static struct file_operations jffs_file_operations =
+{
+	open:	generic_file_open,
+	llseek:	generic_file_llseek,
+	read:	generic_file_read,
+	write:	generic_file_write,
+	ioctl:	jffs_ioctl,
+	mmap:	generic_file_mmap,
+	fsync:	jffs_fsync,
+};
+
+
+static struct inode_operations jffs_file_inode_operations =
+{
+	lookup:  jffs_lookup,          /* lookup */
+	setattr: jffs_setattr,
+};
+
+
+static struct file_operations jffs_dir_operations =
+{
+	readdir:	jffs_readdir,
+};
+
+
+static struct inode_operations jffs_dir_inode_operations =
+{
+	create:   jffs_create,
+	lookup:   jffs_lookup,
+	unlink:   jffs_unlink,
+	symlink:  jffs_symlink,
+	mkdir:    jffs_mkdir,
+	rmdir:    jffs_rmdir,
+	mknod:    jffs_mknod,
+	rename:   jffs_rename,
+	setattr:  jffs_setattr,
+};
+
+
+/* Initialize an inode for the VFS.  */
+static void
+jffs_read_inode(struct inode *inode)
+{
+	struct jffs_file *f;
+	struct jffs_control *c;
+
+	D3(printk("jffs_read_inode(): inode->i_ino == %lu\n", inode->i_ino));
+
+	if (!inode->i_sb) {
+		D(printk("jffs_read_inode(): !inode->i_sb ==> "
+			 "No super block!\n"));
+		return;
+	}
+	c = (struct jffs_control *)inode->i_sb->u.generic_sbp;
+	D3(printk (KERN_NOTICE "read_inode(): down biglock\n"));
+	down(&c->fmc->biglock);
+	if (!(f = jffs_find_file(c, inode->i_ino))) {
+		D(printk("jffs_read_inode(): No such inode (%lu).\n",
+			 inode->i_ino));
+		D3(printk (KERN_NOTICE "read_inode(): up biglock\n"));
+		up(&c->fmc->biglock);
+		return;
+	}
+	inode->u.generic_ip = (void *)f;
+	inode->i_mode = f->mode;
+	inode->i_nlink = f->nlink;
+	inode->i_uid = f->uid;
+	inode->i_gid = f->gid;
+	inode->i_size = f->size;
+	inode->i_atime = f->atime;
+	inode->i_mtime = f->mtime;
+	inode->i_ctime = f->ctime;
+	inode->i_blksize = PAGE_SIZE;
+	inode->i_blocks = (inode->i_size + 511) >> 9;
+	if (S_ISREG(inode->i_mode)) {
+		inode->i_op = &jffs_file_inode_operations;
+		inode->i_fop = &jffs_file_operations;
+		inode->i_mapping->a_ops = &jffs_address_operations;
+	}
+	else if (S_ISDIR(inode->i_mode)) {
+		inode->i_op = &jffs_dir_inode_operations;
+		inode->i_fop = &jffs_dir_operations;
+	}
+	else if (S_ISLNK(inode->i_mode)) {
+		inode->i_op = &page_symlink_inode_operations;
+		inode->i_mapping->a_ops = &jffs_address_operations;
+	}
+	else {
+		/* If the node is a device of some sort, then the number of
+		   the device should be read from the flash memory and then
+		   added to the inode's i_rdev member.  */
+		kdev_t rdev;
+		jffs_read_data(f, (char *)&rdev, 0, sizeof(kdev_t));
+		init_special_inode(inode, inode->i_mode, kdev_t_to_nr(rdev));
+	}
+
+	D3(printk (KERN_NOTICE "read_inode(): up biglock\n"));
+	up(&c->fmc->biglock);
+}
+
+
+void
+jffs_delete_inode(struct inode *inode)
+{
+	struct jffs_file *f;
+	struct jffs_control *c;
+	D3(printk("jffs_delete_inode(): inode->i_ino == %lu\n",
+		  inode->i_ino));
+
+	lock_kernel();
+	inode->i_size = 0;
+	inode->i_blocks = 0;
+	inode->u.generic_ip = 0;
+	clear_inode(inode);
+	if (inode->i_nlink == 0) {
+		c = (struct jffs_control *) inode->i_sb->u.generic_sbp;
+		f = (struct jffs_file *) jffs_find_file (c, inode->i_ino);
+		jffs_possibly_delete_file(f);
+	}
+
+	unlock_kernel();
+}
+
+
+void
+jffs_write_super(struct super_block *sb)
+{
+	struct jffs_control *c = (struct jffs_control *)sb->u.generic_sbp;
+
+	jffs_garbage_collect_trigger(c);
+}
+
+static struct super_operations jffs_ops =
+{
+	read_inode:   jffs_read_inode,
+	delete_inode: jffs_delete_inode,
+	put_super:    jffs_put_super,
+	write_super:  jffs_write_super,
+	statfs:       jffs_statfs,
+};
+
+
+static DECLARE_FSTYPE_DEV(jffs_fs_type, "jffs", jffs_read_super);
+
+static int __init
+init_jffs_fs(void)
+{
+	printk(KERN_INFO "JFFS version " JFFS_VERSION_STRING
+		", (C) 1999, 2000  Axis Communications AB\n");
+	
+#ifdef CONFIG_JFFS_PROC_FS
+	jffs_proc_root = proc_mkdir("jffs", proc_root_fs);
+#endif
+	fm_cache = kmem_cache_create("jffs_fm", sizeof(struct jffs_fm),
+				     0, SLAB_HWCACHE_ALIGN, NULL, NULL);
+	node_cache = kmem_cache_create("jffs_node",sizeof(struct jffs_node),
+				       0, SLAB_HWCACHE_ALIGN, NULL, NULL);
+	return register_filesystem(&jffs_fs_type);
+}
+
+static void __exit
+exit_jffs_fs(void)
+{
+	unregister_filesystem(&jffs_fs_type);
+	kmem_cache_destroy(fm_cache);
+	kmem_cache_destroy(node_cache);
+}
+
+EXPORT_NO_SYMBOLS;
+
+module_init(init_jffs_fs)
+module_exit(exit_jffs_fs)
+
+MODULE_DESCRIPTION("The Journalling Flash File System");
+MODULE_AUTHOR("Axis Communications AB.");
+MODULE_LICENSE("GPL");
diff --git a/fs/jffs/intrep.c b/fs/jffs/intrep.c
new file mode 100644
index 00000000000000..054f2c3973b046
--- /dev/null
+++ b/fs/jffs/intrep.c
@@ -0,0 +1,3439 @@
+/*
+ * JFFS -- Journaling Flash File System, Linux implementation.
+ *
+ * Copyright (C) 1999, 2000  Axis Communications, Inc.
+ *
+ * Created by Finn Hakansson <finn@axis.com>.
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * $Id: intrep.c,v 1.102 2001/09/23 23:28:36 dwmw2 Exp $
+ *
+ * Ported to Linux 2.3.x and MTD:
+ * Copyright (C) 2000  Alexander Larsson (alex@cendio.se), Cendio Systems AB
+ *
+ */
+
+/* This file contains the code for the internal structure of the
+   Journaling Flash File System, JFFS.  */
+
+/*
+ * Todo list:
+ *
+ * memcpy_to_flash() and memcpy_from_flash() functions.
+ *
+ * Implementation of hard links.
+ *
+ * Organize the source code in a better way. Against the VFS we could
+ * have jffs_ext.c, and against the block device jffs_int.c.
+ * A better file-internal organization too.
+ *
+ * A better checksum algorithm.
+ *
+ * Consider endianness stuff. ntohl() etc.
+ *
+ * Are we handling the atime, mtime, ctime members of the inode right?
+ *
+ * Remove some duplicated code. Take a look at jffs_write_node() and
+ * jffs_rewrite_data() for instance.
+ *
+ * Implement more meaning of the nlink member in various data structures.
+ * nlink could be used in conjunction with hard links for instance.
+ *
+ * Better memory management. Allocate data structures in larger chunks
+ * if possible.
+ *
+ * If too much meta data is stored, a garbage collect should be issued.
+ * We have experienced problems with too much meta data with for instance
+ * log files.
+ *
+ * Improve the calls to jffs_ioctl(). We would like to retrieve more
+ * information to be able to debug (or to supervise) JFFS during run-time.
+ *
+ */
+
+#define __NO_VERSION__
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/jffs.h>
+#include <linux/fs.h>
+#include <linux/stat.h>
+#include <linux/pagemap.h>
+#include <linux/locks.h>
+#include <asm/semaphore.h>
+#include <asm/byteorder.h>
+#include <linux/version.h>
+#include <linux/smp_lock.h>
+#include <linux/sched.h>
+#include <linux/ctype.h>
+
+#include "intrep.h"
+#include "jffs_fm.h"
+
+long no_jffs_node = 0;
+long no_jffs_file = 0;
+#if defined(JFFS_MEMORY_DEBUG) && JFFS_MEMORY_DEBUG
+long no_jffs_control = 0;
+long no_jffs_raw_inode = 0;
+long no_jffs_node_ref = 0;
+long no_jffs_fm = 0;
+long no_jffs_fmcontrol = 0;
+long no_hash = 0;
+long no_name = 0;
+#endif
+
+static int jffs_scan_flash(struct jffs_control *c);
+static int jffs_update_file(struct jffs_file *f, struct jffs_node *node);
+
+#if CONFIG_JFFS_FS_VERBOSE > 0
+static __u8
+flash_read_u8(struct mtd_info *mtd, loff_t from)
+{
+	size_t retlen;
+	__u8 ret;
+	int res;
+
+	res = MTD_READ(mtd, from, 1, &retlen, &ret);
+	if (retlen != 1) {
+		printk("Didn't read a byte in flash_read_u8(). Returned %d\n", res);
+		return 0;
+	}
+
+	return ret;
+}
+
+static void
+jffs_hexdump(struct mtd_info *mtd, loff_t pos, int size)
+{
+	char line[16];
+	int j = 0;
+
+	while (size > 0) {
+		int i;
+
+		printk("%ld:", (long) pos);
+		for (j = 0; j < 16; j++) {
+			line[j] = flash_read_u8(mtd, pos++);
+		}
+		for (i = 0; i < j; i++) {
+			if (!(i & 1)) {
+				printk(" %.2x", line[i] & 0xff);
+			}
+			else {
+				printk("%.2x", line[i] & 0xff);
+			}
+		}
+
+		/* Print empty space */
+		for (; i < 16; i++) {
+			if (!(i & 1)) {
+				printk("   ");
+			}
+			else {
+				printk("  ");
+			}
+		}
+		printk("  ");
+
+		for (i = 0; i < j; i++) {
+			if (isgraph(line[i])) {
+				printk("%c", line[i]);
+			}
+			else {
+				printk(".");
+			}
+		}
+		printk("\n");
+		size -= 16;
+	}
+}
+
+#endif
+
+#define flash_safe_acquire(arg)
+#define flash_safe_release(arg)
+
+
+static int
+flash_safe_read(struct mtd_info *mtd, loff_t from,
+		u_char *buf, size_t count)
+{
+	size_t retlen;
+	int res;
+
+	D3(printk(KERN_NOTICE "flash_safe_read(%p, %08x, %p, %08x)\n",
+		  mtd, (unsigned int) from, buf, count));
+
+	res = MTD_READ(mtd, from, count, &retlen, buf);
+	if (retlen != count) {
+		panic("Didn't read all bytes in flash_safe_read(). Returned %d\n", res);
+	}
+	return res?res:retlen;
+}
+
+
+static __u32
+flash_read_u32(struct mtd_info *mtd, loff_t from)
+{
+	size_t retlen;
+	__u32 ret;
+	int res;
+
+	res = MTD_READ(mtd, from, 4, &retlen, (unsigned char *)&ret);
+	if (retlen != 4) {
+		printk("Didn't read all bytes in flash_read_u32(). Returned %d\n", res);
+		return 0;
+	}
+
+	return ret;
+}
+
+
+static int
+flash_safe_write(struct mtd_info *mtd, loff_t to,
+		 const u_char *buf, size_t count)
+{
+	size_t retlen;
+	int res;
+
+	D3(printk(KERN_NOTICE "flash_safe_write(%p, %08x, %p, %08x)\n",
+		  mtd, (unsigned int) to, buf, count));
+
+	res = MTD_WRITE(mtd, to, count, &retlen, buf);
+	if (retlen != count) {
+		printk("Didn't write all bytes in flash_safe_write(). Returned %d\n", res);
+	}
+	return res?res:retlen;
+}
+
+
+static int
+flash_safe_writev(struct mtd_info *mtd, const struct iovec *vecs,
+			unsigned long iovec_cnt, loff_t to)
+{
+	size_t retlen, retlen_a;
+	int i;
+	int res;
+
+	D3(printk(KERN_NOTICE "flash_safe_writev(%p, %08x, %p)\n",
+		  mtd, (unsigned int) to, vecs));
+	
+	if (mtd->writev) {
+		res = MTD_WRITEV(mtd, vecs, iovec_cnt, to, &retlen);
+		return res ? res : retlen;
+	}
+	/* Not implemented writev. Repeatedly use write - on the not so
+	   unreasonable assumption that the mtd driver doesn't care how
+	   many write cycles we use. */
+	res=0;
+	retlen=0;
+
+	for (i=0; !res && i<iovec_cnt; i++) {
+		res = MTD_WRITE(mtd, to, vecs[i].iov_len, &retlen_a, vecs[i].iov_base);
+		if (retlen_a != vecs[i].iov_len) {
+			printk("Didn't write all bytes in flash_safe_writev(). Returned %d\n", res);
+			if (i != iovec_cnt-1)
+				return -EIO;
+		}
+		/* If res is non-zero, retlen_a is undefined, but we don't
+		   care because in that case it's not going to be 
+		   returned anyway.
+		*/
+		to += retlen_a;
+		retlen += retlen_a;
+	}
+	return res?res:retlen;
+}
+
+
+static int
+flash_memset(struct mtd_info *mtd, loff_t to,
+	     const u_char c, size_t size)
+{
+	static unsigned char pattern[64];
+	int i;
+
+	/* fill up pattern */
+
+	for(i = 0; i < 64; i++)
+		pattern[i] = c;
+
+	/* write as many 64-byte chunks as we can */
+
+	while (size >= 64) {
+		flash_safe_write(mtd, to, pattern, 64);
+		size -= 64;
+		to += 64;
+	}
+
+	/* and the rest */
+
+	if(size)
+		flash_safe_write(mtd, to, pattern, size);
+
+	return size;
+}
+
+
+static void
+intrep_erase_callback(struct erase_info *done)
+{
+	wait_queue_head_t *wait_q;
+
+	wait_q = (wait_queue_head_t *)done->priv;
+
+	wake_up(wait_q);
+}
+
+
+static int
+flash_erase_region(struct mtd_info *mtd, loff_t start,
+		   size_t size)
+{
+	struct erase_info *erase;
+	DECLARE_WAITQUEUE(wait, current);
+	wait_queue_head_t wait_q;
+
+	erase = kmalloc(sizeof(struct erase_info), GFP_KERNEL);
+	if (!erase)
+		return -ENOMEM;
+
+	init_waitqueue_head(&wait_q);
+
+	erase->mtd = mtd;
+	erase->callback = intrep_erase_callback;
+	erase->addr = start;
+	erase->len = size;
+	erase->priv = (u_long)&wait_q;
+
+	/* FIXME: Use TASK_INTERRUPTIBLE and deal with being interrupted */
+	set_current_state(TASK_UNINTERRUPTIBLE);
+	add_wait_queue(&wait_q, &wait);
+
+	if (MTD_ERASE(mtd, erase) < 0) {
+		set_current_state(TASK_RUNNING);
+		remove_wait_queue(&wait_q, &wait);
+		kfree(erase);
+
+		printk(KERN_WARNING "flash: erase of region [0x%lx, 0x%lx] "
+		       "totally failed\n", (long)start, (long)start + size);
+
+		return -1;
+	}
+
+	schedule(); /* Wait for flash to finish. */
+	remove_wait_queue(&wait_q, &wait);
+
+	kfree(erase);
+
+	return 0;
+}
+
+/* This routine calculates checksums in JFFS.  */
+__u32
+jffs_checksum(const void *data, int size)
+{
+	__u32 sum = 0;
+	__u8 *ptr = (__u8 *)data;
+	while (size-- > 0) {
+		sum += *ptr++;
+	}
+	D3(printk(", result: 0x%08x\n", sum));
+	return sum;
+}
+
+
+int
+jffs_checksum_flash(struct mtd_info *mtd, loff_t start, int size, __u32 *result)
+{
+	__u32 sum = 0;
+	loff_t ptr = start;
+	__u8 *read_buf;
+	int i, length;
+
+	/* Allocate read buffer */
+	read_buf = (__u8 *) kmalloc (sizeof(__u8) * 4096, GFP_KERNEL);
+	if (!read_buf) {
+		printk(KERN_NOTICE "kmalloc failed in jffs_checksum_flash()\n");
+		return -ENOMEM;
+	}
+	/* Loop until checksum done */
+	while (size) {
+		/* Get amount of data to read */
+		if (size < 4096)
+			length = size;
+		else
+			length = 4096;
+
+		/* Perform flash read */
+		D3(printk(KERN_NOTICE "jffs_checksum_flash\n"));
+		flash_safe_read(mtd, ptr, &read_buf[0], length);
+
+		/* Compute checksum */
+		for (i=0; i < length ; i++)
+			sum += read_buf[i];
+
+		/* Update pointer and size */
+		size -= length;
+		ptr += length;
+	}
+
+	/* Free read buffer */
+	kfree (read_buf);
+
+	/* Return result */
+	D3(printk("checksum result: 0x%08x\n", sum));
+	*result = sum;
+	return 0;
+}
+
+static __inline__ void jffs_fm_write_lock(struct jffs_fmcontrol *fmc)
+{
+  //	down(&fmc->wlock);
+}
+
+static __inline__ void jffs_fm_write_unlock(struct jffs_fmcontrol *fmc)
+{
+  //	up(&fmc->wlock);
+}
+
+
+/* Create and initialize a new struct jffs_file.  */
+static struct jffs_file *
+jffs_create_file(struct jffs_control *c,
+		 const struct jffs_raw_inode *raw_inode)
+{
+	struct jffs_file *f;
+
+	if (!(f = (struct jffs_file *)kmalloc(sizeof(struct jffs_file),
+					      GFP_KERNEL))) {
+		D(printk("jffs_create_file(): Failed!\n"));
+		return 0;
+	}
+	no_jffs_file++;
+	memset(f, 0, sizeof(struct jffs_file));
+	f->ino = raw_inode->ino;
+	f->pino = raw_inode->pino;
+	f->nlink = raw_inode->nlink;
+	f->deleted = raw_inode->deleted;
+	f->c = c;
+
+	return f;
+}
+
+
+/* Build a control block for the file system.  */
+static struct jffs_control *
+jffs_create_control(kdev_t dev)
+{
+	struct jffs_control *c;
+	register int s = sizeof(struct jffs_control);
+	int i;
+	D(char *t = 0);
+
+	D2(printk("jffs_create_control()\n"));
+
+	if (!(c = (struct jffs_control *)kmalloc(s, GFP_KERNEL))) {
+		goto fail_control;
+	}
+	DJM(no_jffs_control++);
+	c->root = 0;
+	c->gc_task = 0;
+	c->hash_len = JFFS_HASH_SIZE;
+	s = sizeof(struct list_head) * c->hash_len;
+	if (!(c->hash = (struct list_head *)kmalloc(s, GFP_KERNEL))) {
+		goto fail_hash;
+	}
+	DJM(no_hash++);
+	for (i = 0; i < c->hash_len; i++)
+		INIT_LIST_HEAD(&c->hash[i]);
+	if (!(c->fmc = jffs_build_begin(c, dev))) {
+		goto fail_fminit;
+	}
+	c->next_ino = JFFS_MIN_INO + 1;
+	c->delete_list = (struct jffs_delete_list *) 0;
+	return c;
+
+fail_fminit:
+	D(t = "c->fmc");
+fail_hash:
+	kfree(c);
+	DJM(no_jffs_control--);
+	D(t = t ? t : "c->hash");
+fail_control:
+	D(t = t ? t : "control");
+	D(printk("jffs_create_control(): Allocation failed: (%s)\n", t));
+	return (struct jffs_control *)0;
+}
+
+
+/* Clean up all data structures associated with the file system.  */
+void
+jffs_cleanup_control(struct jffs_control *c)
+{
+	D2(printk("jffs_cleanup_control()\n"));
+
+	if (!c) {
+		D(printk("jffs_cleanup_control(): c == NULL !!!\n"));
+		return;
+	}
+
+	while (c->delete_list) {
+		struct jffs_delete_list *delete_list_element;
+		delete_list_element = c->delete_list;
+		c->delete_list = c->delete_list->next;
+		kfree(delete_list_element);
+	}
+
+	/* Free all files and nodes.  */
+	if (c->hash) {
+		jffs_foreach_file(c, jffs_free_node_list);
+		jffs_foreach_file(c, jffs_free_file);
+		kfree(c->hash);
+		DJM(no_hash--);
+	}
+	jffs_cleanup_fmcontrol(c->fmc);
+	kfree(c);
+	DJM(no_jffs_control--);
+	D3(printk("jffs_cleanup_control(): Leaving...\n"));
+}
+
+
+/* This function adds a virtual root node to the in-RAM representation.
+   Called by jffs_build_fs().  */
+static int
+jffs_add_virtual_root(struct jffs_control *c)
+{
+	struct jffs_file *root;
+	struct jffs_node *node;
+
+	D2(printk("jffs_add_virtual_root(): "
+		  "Creating a virtual root directory.\n"));
+
+	if (!(root = (struct jffs_file *)kmalloc(sizeof(struct jffs_file),
+						 GFP_KERNEL))) {
+		return -ENOMEM;
+	}
+	no_jffs_file++;
+	if (!(node = jffs_alloc_node())) {
+		kfree(root);
+		no_jffs_file--;
+		return -ENOMEM;
+	}
+	DJM(no_jffs_node++);
+	memset(node, 0, sizeof(struct jffs_node));
+	node->ino = JFFS_MIN_INO;
+	memset(root, 0, sizeof(struct jffs_file));
+	root->ino = JFFS_MIN_INO;
+	root->mode = S_IFDIR | S_IRWXU | S_IRGRP
+		     | S_IXGRP | S_IROTH | S_IXOTH;
+	root->atime = root->mtime = root->ctime = CURRENT_TIME;
+	root->nlink = 1;
+	root->c = c;
+	root->version_head = root->version_tail = node;
+	jffs_insert_file_into_hash(root);
+	return 0;
+}
+
+
+/* This is where the file system is built and initialized.  */
+int
+jffs_build_fs(struct super_block *sb)
+{
+	struct jffs_control *c;
+	int err = 0;
+
+	D2(printk("jffs_build_fs()\n"));
+
+	if (!(c = jffs_create_control(sb->s_dev))) {
+		return -ENOMEM;
+	}
+	c->building_fs = 1;
+	c->sb = sb;
+	if ((err = jffs_scan_flash(c)) < 0) {
+		if(err == -EAGAIN){
+			/* scan_flash() wants us to try once more. A flipping 
+			   bits sector was detect in the middle of the scan flash.
+			   Clean up old allocated memory before going in.
+			*/
+			D1(printk("jffs_build_fs: Cleaning up all control structures,"
+				  " reallocating them and trying mount again.\n"));
+			jffs_cleanup_control(c);
+			if (!(c = jffs_create_control(sb->s_dev))) {
+				return -ENOMEM;
+			}
+			c->building_fs = 1;
+			c->sb = sb;
+
+			if ((err = jffs_scan_flash(c)) < 0) {
+				goto jffs_build_fs_fail;
+			}			
+		}else{
+			goto jffs_build_fs_fail;
+		}
+	}
+
+	/* Add a virtual root node if no one exists.  */
+	if (!jffs_find_file(c, JFFS_MIN_INO)) {
+		if ((err = jffs_add_virtual_root(c)) < 0) {
+			goto jffs_build_fs_fail;
+		}
+	}
+
+	while (c->delete_list) {
+		struct jffs_file *f;
+		struct jffs_delete_list *delete_list_element;
+
+		if ((f = jffs_find_file(c, c->delete_list->ino))) {
+			f->deleted = 1;
+		}
+		delete_list_element = c->delete_list;
+		c->delete_list = c->delete_list->next;
+		kfree(delete_list_element);
+	}
+
+	/* Remove deleted nodes.  */
+	if ((err = jffs_foreach_file(c, jffs_possibly_delete_file)) < 0) {
+		printk(KERN_ERR "JFFS: Failed to remove deleted nodes.\n");
+		goto jffs_build_fs_fail;
+	}
+	/* Remove redundant nodes.  (We are not interested in the
+	   return value in this case.)  */
+	jffs_foreach_file(c, jffs_remove_redundant_nodes);
+	/* Try to build a tree from all the nodes.  */
+	if ((err = jffs_foreach_file(c, jffs_insert_file_into_tree)) < 0) {
+		printk("JFFS: Failed to build tree.\n");
+		goto jffs_build_fs_fail;
+	}
+	/* Compute the sizes of all files in the filesystem.  Adjust if
+	   necessary.  */
+	if ((err = jffs_foreach_file(c, jffs_build_file)) < 0) {
+		printk("JFFS: Failed to build file system.\n");
+		goto jffs_build_fs_fail;
+	}
+	sb->u.generic_sbp = (void *)c;
+	c->building_fs = 0;
+
+	D1(jffs_print_hash_table(c));
+	D1(jffs_print_tree(c->root, 0));
+
+	return 0;
+
+jffs_build_fs_fail:
+	jffs_cleanup_control(c);
+	return err;
+} /* jffs_build_fs()  */
+
+
+/*
+  This checks for sectors that were being erased in their previous 
+  lifetimes and for some reason or the other (power fail etc.), 
+  the erase cycles never completed.
+  As the flash array would have reverted back to read status, 
+  these sectors are detected by the symptom of the "flipping bits",
+  i.e. bits being read back differently from the same location in
+  flash if read multiple times.
+  The only solution to this is to re-erase the entire
+  sector.
+  Unfortunately detecting "flipping bits" is not a simple exercise
+  as a bit may be read back at 1 or 0 depending on the alignment 
+  of the stars in the universe.
+  The level of confidence is in direct proportion to the number of 
+  scans done. By power fail testing I (Vipin) have been able to 
+  proove that reading twice is not enough.
+  Maybe 4 times? Change NUM_REREADS to a higher number if you want
+  a (even) higher degree of confidence in your mount process. 
+  A higher number would of course slow down your mount.
+*/
+int check_partly_erased_sectors(struct jffs_fmcontrol *fmc){
+
+#define NUM_REREADS             4 /* see note above */
+#define READ_AHEAD_BYTES        4096 /* must be a multiple of 4, 
+					usually set to kernel page size */
+
+	__u8 *read_buf1;
+	__u8 *read_buf2;
+
+	int err = 0;
+	int retlen;
+	int i;
+	int cnt;
+	__u32 offset;
+	loff_t pos = 0;
+	loff_t end = fmc->flash_size;
+
+
+	/* Allocate read buffers */
+	read_buf1 = (__u8 *) kmalloc (sizeof(__u8) * READ_AHEAD_BYTES, GFP_KERNEL);
+	if (!read_buf1)
+		return -ENOMEM;
+
+	read_buf2 = (__u8 *) kmalloc (sizeof(__u8) * READ_AHEAD_BYTES, GFP_KERNEL);
+	if (!read_buf2) {
+		kfree(read_buf1);
+		return -ENOMEM;
+	}
+
+ CHECK_NEXT:
+	while(pos < end){
+		
+		D1(printk("check_partly_erased_sector():checking sector which contains"
+			  " offset 0x%x for flipping bits..\n", (__u32)pos));
+		
+		retlen = flash_safe_read(fmc->mtd, pos,
+					 &read_buf1[0], READ_AHEAD_BYTES);
+		retlen &= ~3;
+		
+		for(cnt = 0; cnt < NUM_REREADS; cnt++){
+			(void)flash_safe_read(fmc->mtd, pos,
+					      &read_buf2[0], READ_AHEAD_BYTES);
+			
+			for (i=0 ; i < retlen ; i+=4) {
+				/* buffers MUST match, double word for word! */
+				if(*((__u32 *) &read_buf1[i]) !=
+				   *((__u32 *) &read_buf2[i])
+				   ){
+				        /* flipping bits detected, time to erase sector */
+					/* This will help us log some statistics etc. */
+					D1(printk("Flipping bits detected in re-read round:%i of %i\n",
+					       cnt, NUM_REREADS));
+					D1(printk("check_partly_erased_sectors:flipping bits detected"
+						  " @offset:0x%x(0x%x!=0x%x)\n",
+						  (__u32)pos+i, *((__u32 *) &read_buf1[i]), 
+						  *((__u32 *) &read_buf2[i])));
+					
+				        /* calculate start of present sector */
+					offset = (((__u32)pos+i)/(__u32)fmc->sector_size) * (__u32)fmc->sector_size;
+					
+					D1(printk("check_partly_erased_sector():erasing sector starting 0x%x.\n",
+						  offset));
+					
+					if (flash_erase_region(fmc->mtd,
+							       offset, fmc->sector_size) < 0) {
+						printk(KERN_ERR "JFFS: Erase of flash failed. "
+						       "offset = %u, erase_size = %d\n",
+						       offset , fmc->sector_size);
+						
+						err = -EIO;
+						goto returnBack;
+
+					}else{
+						D1(printk("JFFS: Erase of flash sector @0x%x successful.\n",
+						       offset));
+						/* skip ahead to the next sector */
+						pos = (((__u32)pos+i)/(__u32)fmc->sector_size) * (__u32)fmc->sector_size;
+						pos += fmc->sector_size;
+						goto CHECK_NEXT;
+					}
+				}
+			}
+		}
+		pos += READ_AHEAD_BYTES;
+	}
+
+ returnBack:
+	kfree(read_buf1);
+	kfree(read_buf2);
+
+	D2(printk("check_partly_erased_sector():Done checking all sectors till offset 0x%x for flipping bits.\n",
+		  (__u32)pos));
+
+	return err;
+
+}/* end check_partly_erased_sectors() */
+
+
+
+/* Scan the whole flash memory in order to find all nodes in the
+   file systems.  */
+static int
+jffs_scan_flash(struct jffs_control *c)
+{
+	char name[JFFS_MAX_NAME_LEN + 2];
+	struct jffs_raw_inode raw_inode;
+	struct jffs_node *node = 0;
+	struct jffs_fmcontrol *fmc = c->fmc;
+	__u32 checksum;
+	__u8 tmp_accurate;
+	__u16 tmp_chksum;
+	__u32 deleted_file;
+	loff_t pos = 0;
+	loff_t start;
+	loff_t test_start;
+	loff_t end = fmc->flash_size;
+	__u8 *read_buf;
+	int i, len, retlen;
+	__u32 offset;
+
+	__u32 free_chunk_size1;
+	__u32 free_chunk_size2;
+
+	
+#define NUMFREEALLOWED     2        /* 2 chunks of at least erase size space allowed */
+	int num_free_space = 0;       /* Flag err if more than TWO
+				       free blocks found. This is NOT allowed
+				       by the current jffs design.
+				    */
+	int num_free_spc_not_accp = 0; /* For debugging purposed keep count 
+					of how much free space was rejected and
+					marked dirty
+				     */
+
+	D1(printk("jffs_scan_flash(): start pos = 0x%lx, end = 0x%lx\n",
+		  (long)pos, (long)end));
+
+	flash_safe_acquire(fmc->mtd);
+
+	/*
+	  check and make sure that any sector does not suffer
+	  from the "partly erased, bit flipping syndrome" (TM Vipin :)
+	  If so, offending sectors will be erased.
+	*/
+	if(check_partly_erased_sectors(fmc) < 0){
+
+		flash_safe_release(fmc->mtd);
+		return -EIO; /* bad, bad, bad error. Cannot continue.*/
+	}
+
+	/* Allocate read buffer */
+	read_buf = (__u8 *) kmalloc (sizeof(__u8) * 4096, GFP_KERNEL);
+	if (!read_buf) {
+		flash_safe_release(fmc->mtd);
+		return -ENOMEM;
+	}
+			      
+	/* Start the scan.  */
+	while (pos < end) {
+		deleted_file = 0;
+
+		/* Remember the position from where we started this scan.  */
+		start = pos;
+
+		switch (flash_read_u32(fmc->mtd, pos)) {
+		case JFFS_EMPTY_BITMASK:
+			/* We have found 0xffffffff at this position.  We have to
+			   scan the rest of the flash till the end or till
+			   something else than 0xffffffff is found.
+		           Keep going till we do not find JFFS_EMPTY_BITMASK 
+			   anymore */
+
+			D1(printk("jffs_scan_flash(): 0xffffffff at pos 0x%lx.\n",
+				  (long)pos));
+
+		        while(pos < end){
+
+			      len = end - pos < 4096 ? end - pos : 4096;
+			      
+			      retlen = flash_safe_read(fmc->mtd, pos,
+						 &read_buf[0], len);
+
+			      retlen &= ~3;
+			      
+			      for (i=0 ; i < retlen ; i+=4, pos += 4) {
+				      if(*((__u32 *) &read_buf[i]) !=
+					 JFFS_EMPTY_BITMASK)
+					break;
+			      }
+			      if (i == retlen)
+				    continue;
+			      else
+				    break;
+			}
+
+			D1(printk("jffs_scan_flash():0xffffffff ended at pos 0x%lx.\n",
+				  (long)pos));
+			
+			/* If some free space ends in the middle of a sector,
+			   treat it as dirty rather than clean.
+			   This is to handle the case where one thread 
+			   allocated space for a node, but didn't get to
+			   actually _write_ it before power was lost, leaving
+			   a gap in the log. Shifting all node writes into
+			   a single kernel thread will fix the original problem.
+			*/
+			if ((__u32) pos % fmc->sector_size) {
+				/* If there was free space in previous 
+				   sectors, don't mark that dirty too - 
+				   only from the beginning of this sector
+				   (or from start) 
+				*/
+
+			        test_start = pos & ~(fmc->sector_size-1); /* end of last sector */
+
+				if (start < test_start) {
+
+				        /* free space started in the previous sector! */
+
+					if((num_free_space < NUMFREEALLOWED) && 
+					   ((unsigned int)(test_start - start) >= fmc->sector_size)){
+
+				                /*
+						  Count it in if we are still under NUMFREEALLOWED *and* it is 
+						  at least 1 erase sector in length. This will keep us from 
+						  picking any little ole' space as "free".
+						*/
+					  
+					        D1(printk("Reducing end of free space to 0x%x from 0x%x\n",
+							  (unsigned int)test_start, (unsigned int)pos));
+
+						D1(printk("Free space accepted: Starting 0x%x for 0x%x bytes\n",
+							  (unsigned int) start,
+							  (unsigned int)(test_start - start)));
+
+						/* below, space from "start" to "pos" will be marked dirty. */
+						start = test_start; 
+						
+						/* Being in here means that we have found at least an entire 
+						   erase sector size of free space ending on a sector boundary.
+						   Keep track of free spaces accepted.
+						*/
+						num_free_space++;
+					}else{
+					        num_free_spc_not_accp++;
+					        D1(printk("Free space (#%i) found but *Not* accepted: Starting"
+							  " 0x%x for 0x%x bytes\n",
+							  num_free_spc_not_accp, (unsigned int)start, 
+							  (unsigned int)((unsigned int)(pos & ~(fmc->sector_size-1)) - (unsigned int)start)));
+					        
+					}
+					
+				}
+				if((((__u32)(pos - start)) != 0)){
+
+				        D1(printk("Dirty space: Starting 0x%x for 0x%x bytes\n",
+						  (unsigned int) start, (unsigned int) (pos - start)));
+					jffs_fmalloced(fmc, (__u32) start,
+						       (__u32) (pos - start), 0);
+				}else{
+					/* "Flipping bits" detected. This means that our scan for them
+					   did not catch this offset. See check_partly_erased_sectors() for
+					   more info.
+					*/
+				        
+					D1(printk("jffs_scan_flash():wants to allocate dirty flash "
+						  "space for 0 bytes.\n"));
+					D1(printk("jffs_scan_flash(): Flipping bits! We will free "
+						  "all allocated memory, erase this sector and remount\n"));
+
+					/* calculate start of present sector */
+					offset = (((__u32)pos)/(__u32)fmc->sector_size) * (__u32)fmc->sector_size;
+					
+					D1(printk("jffs_scan_flash():erasing sector starting 0x%x.\n",
+						  offset));
+					
+					if (flash_erase_region(fmc->mtd,
+							       offset, fmc->sector_size) < 0) {
+						printk(KERN_ERR "JFFS: Erase of flash failed. "
+						       "offset = %u, erase_size = %d\n",
+						       offset , fmc->sector_size);
+
+						flash_safe_release(fmc->mtd);
+						kfree (read_buf);
+						return -1; /* bad, bad, bad! */
+
+					}
+					flash_safe_release(fmc->mtd);
+					kfree (read_buf);
+
+					return -EAGAIN; /* erased offending sector. Try mount one more time please. */
+				}
+			}else{
+			        /* Being in here means that we have found free space that ends on an erase sector
+				   boundary.
+				   Count it in if we are still under NUMFREEALLOWED *and* it is at least 1 erase 
+				   sector in length. This will keep us from picking any little ole' space as "free".
+				 */
+			         if((num_free_space < NUMFREEALLOWED) && 
+				    ((unsigned int)(pos - start) >= fmc->sector_size)){
+				           /* We really don't do anything to mark space as free, except *not* 
+					      mark it dirty and just advance the "pos" location pointer. 
+					      It will automatically be picked up as free space.
+					    */ 
+				           num_free_space++;
+				           D1(printk("Free space accepted: Starting 0x%x for 0x%x bytes\n",
+						     (unsigned int) start, (unsigned int) (pos - start)));
+				 }else{
+				         num_free_spc_not_accp++;
+					 D1(printk("Free space (#%i) found but *Not* accepted: Starting "
+						   "0x%x for 0x%x bytes\n", num_free_spc_not_accp, 
+						   (unsigned int) start, 
+						   (unsigned int) (pos - start)));
+					 
+					 /* Mark this space as dirty. We already have our free space. */
+					 D1(printk("Dirty space: Starting 0x%x for 0x%x bytes\n",
+						   (unsigned int) start, (unsigned int) (pos - start)));
+					 jffs_fmalloced(fmc, (__u32) start,
+							(__u32) (pos - start), 0);				           
+				 }
+				 
+			}
+			if(num_free_space > NUMFREEALLOWED){
+			         printk(KERN_WARNING "jffs_scan_flash(): Found free space "
+					"number %i. Only %i free space is allowed.\n",
+					num_free_space, NUMFREEALLOWED);			      
+			}
+			continue;
+
+		case JFFS_DIRTY_BITMASK:
+			/* We have found 0x00000000 at this position.  Scan as far
+			   as possible to find out how much is dirty.  */
+			D1(printk("jffs_scan_flash(): 0x00000000 at pos 0x%lx.\n",
+				  (long)pos));
+			for (; pos < end
+			       && JFFS_DIRTY_BITMASK == flash_read_u32(fmc->mtd, pos);
+			     pos += 4);
+			D1(printk("jffs_scan_flash(): 0x00 ended at "
+				  "pos 0x%lx.\n", (long)pos));
+			jffs_fmalloced(fmc, (__u32) start,
+				       (__u32) (pos - start), 0);
+			continue;
+
+		case JFFS_MAGIC_BITMASK:
+			/* We have probably found a new raw inode.  */
+			break;
+
+		default:
+		bad_inode:
+			/* We're f*cked.  This is not solved yet.  We have
+			   to scan for the magic pattern.  */
+			D1(printk("*************** Dirty flash memory or "
+				  "bad inode: "
+				  "hexdump(pos = 0x%lx, len = 128):\n",
+				  (long)pos));
+			D1(jffs_hexdump(fmc->mtd, pos, 128));
+
+			for (pos += 4; pos < end; pos += 4) {
+				switch (flash_read_u32(fmc->mtd, pos)) {
+				case JFFS_MAGIC_BITMASK:
+				case JFFS_EMPTY_BITMASK:
+					/* handle these in the main switch() loop */
+					goto cont_scan;
+
+				default:
+					break;
+				}
+			}
+
+			cont_scan:
+			/* First, mark as dirty the region
+			   which really does contain crap. */
+			jffs_fmalloced(fmc, (__u32) start,
+				       (__u32) (pos - start),
+				       0);
+			
+			continue;
+		}/* switch */
+
+		/* We have found the beginning of an inode.  Create a
+		   node for it unless there already is one available.  */
+		if (!node) {
+			if (!(node = jffs_alloc_node())) {
+				/* Free read buffer */
+				kfree (read_buf);
+
+				/* Release the flash device */
+				flash_safe_release(fmc->mtd);
+	
+				return -ENOMEM;
+			}
+			DJM(no_jffs_node++);
+		}
+
+		/* Read the next raw inode.  */
+
+		flash_safe_read(fmc->mtd, pos, (u_char *) &raw_inode,
+				sizeof(struct jffs_raw_inode));
+
+		/* When we compute the checksum for the inode, we never
+		   count the 'accurate' or the 'checksum' fields.  */
+		tmp_accurate = raw_inode.accurate;
+		tmp_chksum = raw_inode.chksum;
+		raw_inode.accurate = 0;
+		raw_inode.chksum = 0;
+		checksum = jffs_checksum(&raw_inode,
+					 sizeof(struct jffs_raw_inode));
+		raw_inode.accurate = tmp_accurate;
+		raw_inode.chksum = tmp_chksum;
+
+		D3(printk("*** We have found this raw inode at pos 0x%lx "
+			  "on the flash:\n", (long)pos));
+		D3(jffs_print_raw_inode(&raw_inode));
+
+		if (checksum != raw_inode.chksum) {
+			D1(printk("jffs_scan_flash(): Bad checksum: "
+				  "checksum = %u, "
+				  "raw_inode.chksum = %u\n",
+				  checksum, raw_inode.chksum));
+			pos += sizeof(struct jffs_raw_inode);
+			jffs_fmalloced(fmc, (__u32) start,
+				       (__u32) (pos - start), 0);
+			/* Reuse this unused struct jffs_node.  */
+			continue;
+		}
+
+		/* Check the raw inode read so far.  Start with the
+		   maximum length of the filename.  */
+		if (raw_inode.nsize > JFFS_MAX_NAME_LEN) {
+			printk(KERN_WARNING "jffs_scan_flash: Found a "
+			       "JFFS node with name too large\n");
+			goto bad_inode;
+		}
+
+		if (raw_inode.rename && raw_inode.dsize != sizeof(__u32)) {
+			printk(KERN_WARNING "jffs_scan_flash: Found a "
+			       "rename node with dsize %u.\n",
+			       raw_inode.dsize);
+			jffs_print_raw_inode(&raw_inode);
+			goto bad_inode;
+		}
+
+		/* The node's data segment should not exceed a
+		   certain length.  */
+		if (raw_inode.dsize > fmc->max_chunk_size) {
+			printk(KERN_WARNING "jffs_scan_flash: Found a "
+			       "JFFS node with dsize (0x%x) > max_chunk_size (0x%x)\n",
+			       raw_inode.dsize, fmc->max_chunk_size);
+			goto bad_inode;
+		}
+
+		pos += sizeof(struct jffs_raw_inode);
+
+		/* This shouldn't be necessary because a node that
+		   violates the flash boundaries shouldn't be written
+		   in the first place. */
+		if (pos >= end) {
+			goto check_node;
+		}
+
+		/* Read the name.  */
+		*name = 0;
+		if (raw_inode.nsize) {
+		        flash_safe_read(fmc->mtd, pos, name, raw_inode.nsize);
+			name[raw_inode.nsize] = '\0';
+			pos += raw_inode.nsize
+			       + JFFS_GET_PAD_BYTES(raw_inode.nsize);
+			D3(printk("name == \"%s\"\n", name));
+			checksum = jffs_checksum(name, raw_inode.nsize);
+			if (checksum != raw_inode.nchksum) {
+				D1(printk("jffs_scan_flash(): Bad checksum: "
+					  "checksum = %u, "
+					  "raw_inode.nchksum = %u\n",
+					  checksum, raw_inode.nchksum));
+				jffs_fmalloced(fmc, (__u32) start,
+					       (__u32) (pos - start), 0);
+				/* Reuse this unused struct jffs_node.  */
+				continue;
+			}
+			if (pos >= end) {
+				goto check_node;
+			}
+		}
+
+		/* Read the data, if it exists, in order to be sure it
+		   matches the checksum.  */
+		if (raw_inode.dsize) {
+			if (raw_inode.rename) {
+				deleted_file = flash_read_u32(fmc->mtd, pos);
+			}
+			if (jffs_checksum_flash(fmc->mtd, pos, raw_inode.dsize, &checksum)) {
+				printk("jffs_checksum_flash() failed to calculate a checksum\n");
+				jffs_fmalloced(fmc, (__u32) start,
+					       (__u32) (pos - start), 0);
+				/* Reuse this unused struct jffs_node.  */
+				continue;
+			}				
+			pos += raw_inode.dsize
+			       + JFFS_GET_PAD_BYTES(raw_inode.dsize);
+
+			if (checksum != raw_inode.dchksum) {
+				D1(printk("jffs_scan_flash(): Bad checksum: "
+					  "checksum = %u, "
+					  "raw_inode.dchksum = %u\n",
+					  checksum, raw_inode.dchksum));
+				jffs_fmalloced(fmc, (__u32) start,
+					       (__u32) (pos - start), 0);
+				/* Reuse this unused struct jffs_node.  */
+				continue;
+			}
+		}
+
+		check_node:
+
+		/* Remember the highest inode number in the whole file
+		   system.  This information will be used when assigning
+		   new files new inode numbers.  */
+		if (c->next_ino <= raw_inode.ino) {
+			c->next_ino = raw_inode.ino + 1;
+		}
+
+		if (raw_inode.accurate) {
+			int err;
+			node->data_offset = raw_inode.offset;
+			node->data_size = raw_inode.dsize;
+			node->removed_size = raw_inode.rsize;
+			/* Compute the offset to the actual data in the
+			   on-flash node.  */
+			node->fm_offset
+			= sizeof(struct jffs_raw_inode)
+			  + raw_inode.nsize
+			  + JFFS_GET_PAD_BYTES(raw_inode.nsize);
+			node->fm = jffs_fmalloced(fmc, (__u32) start,
+						  (__u32) (pos - start),
+						  node);
+			if (!node->fm) {
+				D(printk("jffs_scan_flash(): !node->fm\n"));
+				jffs_free_node(node);
+				DJM(no_jffs_node--);
+
+				/* Free read buffer */
+				kfree (read_buf);
+
+				/* Release the flash device */
+				flash_safe_release(fmc->mtd);
+
+				return -ENOMEM;
+			}
+			if ((err = jffs_insert_node(c, 0, &raw_inode,
+						    name, node)) < 0) {
+				printk("JFFS: Failed to handle raw inode. "
+				       "(err = %d)\n", err);
+				break;
+			}
+			if (raw_inode.rename) {
+				struct jffs_delete_list *dl
+				= (struct jffs_delete_list *)
+				  kmalloc(sizeof(struct jffs_delete_list),
+					  GFP_KERNEL);
+				if (!dl) {
+					D(printk("jffs_scan_flash: !dl\n"));
+					jffs_free_node(node);
+					DJM(no_jffs_node--);
+
+					/* Release the flash device */
+					flash_safe_release(fmc->flash_part);
+
+					/* Free read buffer */
+					kfree (read_buf);
+
+					return -ENOMEM;
+				}
+				dl->ino = deleted_file;
+				dl->next = c->delete_list;
+				c->delete_list = dl;
+				node->data_size = 0;
+			}
+			D3(jffs_print_node(node));
+			node = 0; /* Don't free the node!  */
+		}
+		else {
+			jffs_fmalloced(fmc, (__u32) start,
+				       (__u32) (pos - start), 0);
+			D3(printk("jffs_scan_flash(): Just found an obsolete "
+				  "raw_inode. Continuing the scan...\n"));
+			/* Reuse this unused struct jffs_node.  */
+		}
+	}
+
+	if (node) {
+		jffs_free_node(node);
+		DJM(no_jffs_node--);
+	}
+	jffs_build_end(fmc);
+
+	/* Free read buffer */
+	kfree (read_buf);
+
+	if(!num_free_space){
+	        printk(KERN_WARNING "jffs_scan_flash(): Did not find even a single "
+		       "chunk of free space. This is BAD!\n");
+	}
+
+	/* Return happy */
+	D3(printk("jffs_scan_flash(): Leaving...\n"));
+	flash_safe_release(fmc->mtd);
+
+	/* This is to trap the "free size accounting screwed error. */
+	free_chunk_size1 = jffs_free_size1(fmc);
+	free_chunk_size2 = jffs_free_size2(fmc);
+
+	if (free_chunk_size1 + free_chunk_size2 != fmc->free_size) {
+
+		printk(KERN_WARNING "jffs_scan_falsh():Free size accounting screwed\n");
+		printk(KERN_WARNING "jfffs_scan_flash():free_chunk_size1 == 0x%x, "
+		       "free_chunk_size2 == 0x%x, fmc->free_size == 0x%x\n", 
+		       free_chunk_size1, free_chunk_size2, fmc->free_size);
+
+		return -1; /* Do NOT mount f/s so that we can inspect what happened.
+			      Mounting this  screwed up f/s will screw us up anyway.
+			    */
+	}	
+
+	return 0; /* as far as we are concerned, we are happy! */
+} /* jffs_scan_flash()  */
+
+
+/* Insert any kind of node into the file system.  Take care of data
+   insertions and deletions.  Also remove redundant information. The
+   memory allocated for the `name' is regarded as "given away" in the
+   caller's perspective.  */
+int
+jffs_insert_node(struct jffs_control *c, struct jffs_file *f,
+		 const struct jffs_raw_inode *raw_inode,
+		 const char *name, struct jffs_node *node)
+{
+	int update_name = 0;
+	int insert_into_tree = 0;
+
+	D2(printk("jffs_insert_node(): ino = %u, version = %u, "
+		  "name = \"%s\", deleted = %d\n",
+		  raw_inode->ino, raw_inode->version,
+		  ((name && *name) ? name : ""), raw_inode->deleted));
+
+	/* If there doesn't exist an associated jffs_file, then
+	   create, initialize and insert one into the file system.  */
+	if (!f && !(f = jffs_find_file(c, raw_inode->ino))) {
+		if (!(f = jffs_create_file(c, raw_inode))) {
+			return -ENOMEM;
+		}
+		jffs_insert_file_into_hash(f);
+		insert_into_tree = 1;
+	}
+	node->ino = raw_inode->ino;
+	node->version = raw_inode->version;
+	node->data_size = raw_inode->dsize;
+	node->fm_offset = sizeof(struct jffs_raw_inode) + raw_inode->nsize
+			  + JFFS_GET_PAD_BYTES(raw_inode->nsize);
+	node->name_size = raw_inode->nsize;
+
+	/* Now insert the node at the correct position into the file's
+	   version list.  */
+	if (!f->version_head) {
+		/* This is the first node.  */
+		f->version_head = node;
+		f->version_tail = node;
+		node->version_prev = 0;
+		node->version_next = 0;
+		f->highest_version = node->version;
+		update_name = 1;
+		f->mode = raw_inode->mode;
+		f->uid = raw_inode->uid;
+		f->gid = raw_inode->gid;
+		f->atime = raw_inode->atime;
+		f->mtime = raw_inode->mtime;
+		f->ctime = raw_inode->ctime;
+	}
+	else if ((f->highest_version < node->version)
+		 || (node->version == 0)) {
+		/* Insert at the end of the list.  I.e. this node is the
+		   newest one so far.  */
+		node->version_prev = f->version_tail;
+		node->version_next = 0;
+		f->version_tail->version_next = node;
+		f->version_tail = node;
+		f->highest_version = node->version;
+		update_name = 1;
+		f->pino = raw_inode->pino;
+		f->mode = raw_inode->mode;
+		f->uid = raw_inode->uid;
+		f->gid = raw_inode->gid;
+		f->atime = raw_inode->atime;
+		f->mtime = raw_inode->mtime;
+		f->ctime = raw_inode->ctime;
+	}
+	else if (f->version_head->version > node->version) {
+		/* Insert at the bottom of the list.  */
+		node->version_prev = 0;
+		node->version_next = f->version_head;
+		f->version_head->version_prev = node;
+		f->version_head = node;
+		if (!f->name) {
+			update_name = 1;
+		}
+	}
+	else {
+		struct jffs_node *n;
+		int newer_name = 0;
+		/* Search for the insertion position starting from
+		   the tail (newest node).  */
+		for (n = f->version_tail; n; n = n->version_prev) {
+			if (n->version < node->version) {
+				node->version_prev = n;
+				node->version_next = n->version_next;
+				node->version_next->version_prev = node;
+				n->version_next = node;
+				if (!newer_name) {
+					update_name = 1;
+				}
+				break;
+			}
+			if (n->name_size) {
+				newer_name = 1;
+			}
+		}
+	}
+
+	/* Deletion is irreversible. If any 'deleted' node is ever
+	   written, the file is deleted */
+	if (raw_inode->deleted)
+		f->deleted = raw_inode->deleted;
+
+	/* Perhaps update the name.  */
+	if (raw_inode->nsize && update_name && name && *name && (name != f->name)) {
+		if (f->name) {
+			kfree(f->name);
+			DJM(no_name--);
+		}
+		if (!(f->name = (char *) kmalloc(raw_inode->nsize + 1,
+						 GFP_KERNEL))) {
+			return -ENOMEM;
+		}
+		DJM(no_name++);
+		memcpy(f->name, name, raw_inode->nsize);
+		f->name[raw_inode->nsize] = '\0';
+		f->nsize = raw_inode->nsize;
+		D3(printk("jffs_insert_node(): Updated the name of "
+			  "the file to \"%s\".\n", name));
+	}
+
+	if (!c->building_fs) {
+		D3(printk("jffs_insert_node(): ---------------------------"
+			  "------------------------------------------- 1\n"));
+		if (insert_into_tree) {
+			jffs_insert_file_into_tree(f);
+		}
+		/* Once upon a time, we would call jffs_possibly_delete_file()
+		   here. That causes an oops if someone's still got the file
+		   open, so now we only do it in jffs_delete_inode()
+		   -- dwmw2
+		*/
+		if (node->data_size || node->removed_size) {
+			jffs_update_file(f, node);
+		}
+		jffs_remove_redundant_nodes(f);
+
+		jffs_garbage_collect_trigger(c);
+
+		D3(printk("jffs_insert_node(): ---------------------------"
+			  "------------------------------------------- 2\n"));
+	}
+
+	return 0;
+} /* jffs_insert_node()  */
+
+
+/* Unlink a jffs_node from the version list it is in.  */
+static inline void
+jffs_unlink_node_from_version_list(struct jffs_file *f,
+				   struct jffs_node *node)
+{
+	if (node->version_prev) {
+		node->version_prev->version_next = node->version_next;
+	} else {
+		f->version_head = node->version_next;
+	}
+	if (node->version_next) {
+		node->version_next->version_prev = node->version_prev;
+	} else {
+		f->version_tail = node->version_prev;
+	}
+}
+
+
+/* Unlink a jffs_node from the range list it is in.  */
+static inline void
+jffs_unlink_node_from_range_list(struct jffs_file *f, struct jffs_node *node)
+{
+	if (node->range_prev) {
+		node->range_prev->range_next = node->range_next;
+	}
+	else {
+		f->range_head = node->range_next;
+	}
+	if (node->range_next) {
+		node->range_next->range_prev = node->range_prev;
+	}
+	else {
+		f->range_tail = node->range_prev;
+	}
+}
+
+
+/* Function used by jffs_remove_redundant_nodes() below.  This function
+   classifies what kind of information a node adds to a file.  */
+static inline __u8
+jffs_classify_node(struct jffs_node *node)
+{
+	__u8 mod_type = JFFS_MODIFY_INODE;
+
+	if (node->name_size) {
+		mod_type |= JFFS_MODIFY_NAME;
+	}
+	if (node->data_size || node->removed_size) {
+		mod_type |= JFFS_MODIFY_DATA;
+	}
+	return mod_type;
+}
+
+
+/* Remove redundant nodes from a file.  Mark the on-flash memory
+   as dirty.  */
+int
+jffs_remove_redundant_nodes(struct jffs_file *f)
+{
+	struct jffs_node *newest_node;
+	struct jffs_node *cur;
+	struct jffs_node *prev;
+	__u8 newest_type;
+	__u8 mod_type;
+	__u8 node_with_name_later = 0;
+
+	if (!(newest_node = f->version_tail)) {
+		return 0;
+	}
+
+	/* What does the `newest_node' modify?  */
+	newest_type = jffs_classify_node(newest_node);
+	node_with_name_later = newest_type & JFFS_MODIFY_NAME;
+
+	D3(printk("jffs_remove_redundant_nodes(): ino: %u, name: \"%s\", "
+		  "newest_type: %u\n", f->ino, (f->name ? f->name : ""),
+		  newest_type));
+
+	/* Traverse the file's nodes and determine which of them that are
+	   superfluous.  Yeah, this might look very complex at first
+	   glance but it is actually very simple.  */
+	for (cur = newest_node->version_prev; cur; cur = prev) {
+		prev = cur->version_prev;
+		mod_type = jffs_classify_node(cur);
+		if ((mod_type <= JFFS_MODIFY_INODE)
+		    || ((newest_type & JFFS_MODIFY_NAME)
+			&& (mod_type
+			    <= (JFFS_MODIFY_INODE + JFFS_MODIFY_NAME)))
+		    || (cur->data_size == 0 && cur->removed_size
+			&& !cur->version_prev && node_with_name_later)) {
+			/* Yes, this node is redundant. Remove it.  */
+			D2(printk("jffs_remove_redundant_nodes(): "
+				  "Removing node: ino: %u, version: %u, "
+				  "mod_type: %u\n", cur->ino, cur->version,
+				  mod_type));
+			jffs_unlink_node_from_version_list(f, cur);
+			jffs_fmfree(f->c->fmc, cur->fm, cur);
+			jffs_free_node(cur);
+			DJM(no_jffs_node--);
+		}
+		else {
+			node_with_name_later |= (mod_type & JFFS_MODIFY_NAME);
+		}
+	}
+
+	return 0;
+}
+
+
+/* Insert a file into the hash table.  */
+int
+jffs_insert_file_into_hash(struct jffs_file *f)
+{
+	int i = f->ino % f->c->hash_len;
+
+	D3(printk("jffs_insert_file_into_hash(): f->ino: %u\n", f->ino));
+
+	list_add(&f->hash, &f->c->hash[i]);
+	return 0;
+}
+
+
+/* Insert a file into the file system tree.  */
+int
+jffs_insert_file_into_tree(struct jffs_file *f)
+{
+	struct jffs_file *parent;
+
+	D3(printk("jffs_insert_file_into_tree(): name: \"%s\"\n",
+		  (f->name ? f->name : "")));
+
+	if (!(parent = jffs_find_file(f->c, f->pino))) {
+		if (f->pino == 0) {
+			f->c->root = f;
+			f->parent = 0;
+			f->sibling_prev = 0;
+			f->sibling_next = 0;
+			return 0;
+		}
+		else {
+			D1(printk("jffs_insert_file_into_tree(): Found "
+				  "inode with no parent and pino == %u\n",
+				  f->pino));
+			return -1;
+		}
+	}
+	f->parent = parent;
+	f->sibling_next = parent->children;
+	if (f->sibling_next) {
+		f->sibling_next->sibling_prev = f;
+	}
+	f->sibling_prev = 0;
+	parent->children = f;
+	return 0;
+}
+
+
+/* Remove a file from the hash table.  */
+int
+jffs_unlink_file_from_hash(struct jffs_file *f)
+{
+	D3(printk("jffs_unlink_file_from_hash(): f: 0x%p, "
+		  "ino %u\n", f, f->ino));
+
+	list_del(&f->hash);
+	return 0;
+}
+
+
+/* Just remove the file from the parent's children.  Don't free
+   any memory.  */
+int
+jffs_unlink_file_from_tree(struct jffs_file *f)
+{
+	D3(printk("jffs_unlink_file_from_tree(): ino: %d, pino: %d, name: "
+		  "\"%s\"\n", f->ino, f->pino, (f->name ? f->name : "")));
+
+	if (f->sibling_prev) {
+		f->sibling_prev->sibling_next = f->sibling_next;
+	}
+	else if (f->parent) {
+	        D3(printk("f->parent=%p\n", f->parent));
+		f->parent->children = f->sibling_next;
+	}
+	if (f->sibling_next) {
+		f->sibling_next->sibling_prev = f->sibling_prev;
+	}
+	return 0;
+}
+
+
+/* Find a file with its inode number.  */
+struct jffs_file *
+jffs_find_file(struct jffs_control *c, __u32 ino)
+{
+	struct jffs_file *f;
+	int i = ino % c->hash_len;
+	struct list_head *tmp;
+
+	D3(printk("jffs_find_file(): ino: %u\n", ino));
+
+	for (tmp = c->hash[i].next; tmp != &c->hash[i]; tmp = tmp->next) {
+		f = list_entry(tmp, struct jffs_file, hash);
+		if (ino != f->ino)
+			continue;
+		D3(printk("jffs_find_file(): Found file with ino "
+			       "%u. (name: \"%s\")\n",
+			       ino, (f->name ? f->name : ""));
+		);
+		return f;
+	}
+	D3(printk("jffs_find_file(): Didn't find file "
+			 "with ino %u.\n", ino);
+	);
+	return NULL;
+}
+
+
+/* Find a file in a directory.  We are comparing the names.  */
+struct jffs_file *
+jffs_find_child(struct jffs_file *dir, const char *name, int len)
+{
+	struct jffs_file *f;
+
+	D3(printk("jffs_find_child()\n"));
+
+	for (f = dir->children; f; f = f->sibling_next) {
+		if (!f->deleted && f->name
+		    && !strncmp(f->name, name, len)
+		    && f->name[len] == '\0') {
+			break;
+		}
+	}
+
+	D3(if (f) {
+		printk("jffs_find_child(): Found \"%s\".\n", f->name);
+	}
+	else {
+		char *copy = (char *) kmalloc(len + 1, GFP_KERNEL);
+		if (copy) {
+			memcpy(copy, name, len);
+			copy[len] = '\0';
+		}
+		printk("jffs_find_child(): Didn't find the file \"%s\".\n",
+		       (copy ? copy : ""));
+		if (copy) {
+			kfree(copy);
+		}
+	});
+
+	return f;
+}
+
+
+/* Write a raw inode that takes up a certain amount of space in the flash
+   memory.  At the end of the flash device, there is often space that is
+   impossible to use.  At these times we want to mark this space as not
+   used.  In the cases when the amount of space is greater or equal than
+   a struct jffs_raw_inode, we write a "dummy node" that takes up this
+   space.  The space after the raw inode, if it exists, is left as it is.
+   Since this space after the raw inode contains JFFS_EMPTY_BITMASK bytes,
+   we can compute the checksum of it; we don't have to manipulate it any
+   further.
+
+   If the space left on the device is less than the size of a struct
+   jffs_raw_inode, this space is filled with JFFS_DIRTY_BITMASK bytes.
+   No raw inode is written this time.  */
+static int
+jffs_write_dummy_node(struct jffs_control *c, struct jffs_fm *dirty_fm)
+{
+	struct jffs_fmcontrol *fmc = c->fmc;
+	int err;
+
+	D1(printk("jffs_write_dummy_node(): dirty_fm->offset = 0x%08x, "
+		  "dirty_fm->size = %u\n",
+		  dirty_fm->offset, dirty_fm->size));
+
+	if (dirty_fm->size >= sizeof(struct jffs_raw_inode)) {
+		struct jffs_raw_inode raw_inode;
+		memset(&raw_inode, 0, sizeof(struct jffs_raw_inode));
+		raw_inode.magic = JFFS_MAGIC_BITMASK;
+		raw_inode.dsize = dirty_fm->size
+				  - sizeof(struct jffs_raw_inode);
+		raw_inode.dchksum = raw_inode.dsize * 0xff;
+		raw_inode.chksum
+		= jffs_checksum(&raw_inode, sizeof(struct jffs_raw_inode));
+
+		if ((err = flash_safe_write(fmc->mtd,
+					    dirty_fm->offset,
+					    (u_char *)&raw_inode,
+					    sizeof(struct jffs_raw_inode)))
+		    < 0) {
+			printk(KERN_ERR "JFFS: jffs_write_dummy_node: "
+			       "flash_safe_write failed!\n");
+			return err;
+		}
+	}
+	else {
+		flash_safe_acquire(fmc->mtd);
+		flash_memset(fmc->mtd, dirty_fm->offset, 0, dirty_fm->size);
+		flash_safe_release(fmc->mtd);
+	}
+
+	D3(printk("jffs_write_dummy_node(): Leaving...\n"));
+	return 0;
+}
+
+
+/* Write a raw inode, possibly its name and possibly some data.  */
+int
+jffs_write_node(struct jffs_control *c, struct jffs_node *node,
+		struct jffs_raw_inode *raw_inode,
+		const char *name, const unsigned char *data,
+		int recoverable,
+		struct jffs_file *f)
+{
+	struct jffs_fmcontrol *fmc = c->fmc;
+	struct jffs_fm *fm;
+	struct iovec node_iovec[4];
+	unsigned long iovec_cnt;
+
+	__u32 pos;
+	int err;
+	__u32 slack = 0;
+
+	__u32 total_name_size = raw_inode->nsize
+				+ JFFS_GET_PAD_BYTES(raw_inode->nsize);
+	__u32 total_data_size = raw_inode->dsize
+				+ JFFS_GET_PAD_BYTES(raw_inode->dsize);
+	__u32 total_size = sizeof(struct jffs_raw_inode)
+			   + total_name_size + total_data_size;
+	
+	/* If this node isn't something that will eventually let
+	   GC free even more space, then don't allow it unless
+	   there's at least max_chunk_size space still available
+	*/
+	if (!recoverable)
+		slack = fmc->max_chunk_size;
+		
+
+	/* Fire the retrorockets and shoot the fruiton torpedoes, sir!  */
+
+	ASSERT(if (!node) {
+		printk("jffs_write_node(): node == NULL\n");
+		return -EINVAL;
+	});
+	ASSERT(if (raw_inode && raw_inode->nsize && !name) {
+		printk("*** jffs_write_node(): nsize = %u but name == NULL\n",
+		       raw_inode->nsize);
+		return -EINVAL;
+	});
+
+	D1(printk("jffs_write_node(): filename = \"%s\", ino = %u, "
+		  "total_size = %u\n",
+		  (name ? name : ""), raw_inode->ino,
+		  total_size));
+
+	jffs_fm_write_lock(fmc);
+
+retry:
+	fm = NULL;
+	err = 0;
+	while (!fm) {
+
+		/* Deadlocks suck. */
+		while(fmc->free_size < fmc->min_free_size + total_size + slack) {
+			jffs_fm_write_unlock(fmc);
+			if (!JFFS_ENOUGH_SPACE(c, total_size + slack))
+				return -ENOSPC;
+			jffs_fm_write_lock(fmc);
+		}
+
+		/* First try to allocate some flash memory.  */
+		err = jffs_fmalloc(fmc, total_size, node, &fm);
+		
+		if (err == -ENOSPC) {
+			/* Just out of space. GC and try again */
+			if (fmc->dirty_size < fmc->sector_size) {
+				D(printk("jffs_write_node(): jffs_fmalloc(0x%p, %u) "
+					 "failed, no dirty space to GC\n", fmc,
+					 total_size));
+				return err;
+			}
+			
+			D1(printk(KERN_INFO "jffs_write_node(): Calling jffs_garbage_collect_now()\n"));
+			jffs_fm_write_unlock(fmc);
+			if ((err = jffs_garbage_collect_now(c))) {
+				D(printk("jffs_write_node(): jffs_garbage_collect_now() failed\n"));
+				return err;
+			}
+			jffs_fm_write_lock(fmc);
+			continue;
+		} 
+
+		if (err < 0) {
+			jffs_fm_write_unlock(fmc);
+
+			D(printk("jffs_write_node(): jffs_fmalloc(0x%p, %u) "
+				 "failed!\n", fmc, total_size));
+			return err;
+		}
+
+		if (!fm->nodes) {
+			/* The jffs_fm struct that we got is not good enough.
+			   Make that space dirty and try again  */
+			if ((err = jffs_write_dummy_node(c, fm)) < 0) {
+				kfree(fm);
+				DJM(no_jffs_fm--);
+				jffs_fm_write_unlock(fmc);
+				D(printk("jffs_write_node(): "
+					 "jffs_write_dummy_node(): Failed!\n"));
+				return err;
+			}
+			fm = NULL;
+		}
+	} /* while(!fm) */
+	node->fm = fm;
+
+	ASSERT(if (fm->nodes == 0) {
+		printk(KERN_ERR "jffs_write_node(): fm->nodes == 0\n");
+	});
+
+	pos = node->fm->offset;
+
+	/* Increment the version number here. We can't let the caller
+	   set it beforehand, because we might have had to do GC on a node
+	   of this file - and we'd end up reusing version numbers.
+	*/
+	if (f) {
+		raw_inode->version = f->highest_version + 1;
+		D1(printk (KERN_NOTICE "jffs_write_node(): setting version of %s to %d\n", f->name, raw_inode->version));
+
+		/* if the file was deleted, set the deleted bit in the raw inode */
+		if (f->deleted)
+			raw_inode->deleted = 1;
+	}
+
+	/* Compute the checksum for the data and name chunks.  */
+	raw_inode->dchksum = jffs_checksum(data, raw_inode->dsize);
+	raw_inode->nchksum = jffs_checksum(name, raw_inode->nsize);
+
+	/* The checksum is calculated without the chksum and accurate
+	   fields so set them to zero first.  */
+	raw_inode->accurate = 0;
+	raw_inode->chksum = 0;
+	raw_inode->chksum = jffs_checksum(raw_inode,
+					  sizeof(struct jffs_raw_inode));
+	raw_inode->accurate = 0xff;
+
+	D3(printk("jffs_write_node(): About to write this raw inode to the "
+		  "flash at pos 0x%lx:\n", (long)pos));
+	D3(jffs_print_raw_inode(raw_inode));
+
+	/* The actual raw JFFS node */
+	node_iovec[0].iov_base = (void *) raw_inode;
+	node_iovec[0].iov_len = (size_t) sizeof(struct jffs_raw_inode);
+	iovec_cnt = 1;
+
+	/* Get name and size if there is one */
+	if (raw_inode->nsize) {
+		node_iovec[iovec_cnt].iov_base = (void *) name;
+		node_iovec[iovec_cnt].iov_len = (size_t) raw_inode->nsize;
+		iovec_cnt++;
+
+		if (JFFS_GET_PAD_BYTES(raw_inode->nsize)) {
+			static char allff[3]={255,255,255};
+			/* Add some extra padding if necessary */
+			node_iovec[iovec_cnt].iov_base = allff;
+			node_iovec[iovec_cnt].iov_len =
+				JFFS_GET_PAD_BYTES(raw_inode->nsize);
+			iovec_cnt++;
+		}
+	}
+
+	/* Get data and size if there is any */
+	if (raw_inode->dsize) {
+		node_iovec[iovec_cnt].iov_base = (void *) data;
+		node_iovec[iovec_cnt].iov_len = (size_t) raw_inode->dsize;
+		iovec_cnt++;
+		/* No need to pad this because we're not actually putting
+		   anything after it.
+		*/
+	}
+
+	if ((err = flash_safe_writev(fmc->mtd, node_iovec, iovec_cnt,
+				    pos)) < 0) {
+		jffs_fmfree_partly(fmc, fm, 0);
+		jffs_fm_write_unlock(fmc);
+		printk(KERN_ERR "JFFS: jffs_write_node: Failed to write, "
+		       "requested %i, wrote %i\n", total_size, err);
+		goto retry;
+	}
+	if (raw_inode->deleted)
+		f->deleted = 1;
+
+	jffs_fm_write_unlock(fmc);
+	D3(printk("jffs_write_node(): Leaving...\n"));
+	return raw_inode->dsize;
+} /* jffs_write_node()  */
+
+
+/* Read data from the node and write it to the buffer.  'node_offset'
+   is how much we have read from this particular node before and which
+   shouldn't be read again.  'max_size' is how much space there is in
+   the buffer.  */
+static int
+jffs_get_node_data(struct jffs_file *f, struct jffs_node *node, 
+		   unsigned char *buf,__u32 node_offset, __u32 max_size,
+		   kdev_t dev)
+{
+	struct jffs_fmcontrol *fmc = f->c->fmc;
+	__u32 pos = node->fm->offset + node->fm_offset + node_offset;
+	__u32 avail = node->data_size - node_offset;
+	__u32 r;
+
+	D2(printk("  jffs_get_node_data(): file: \"%s\", ino: %u, "
+		  "version: %u, node_offset: %u\n",
+		  f->name, node->ino, node->version, node_offset));
+
+	r = min(avail, max_size);
+	D3(printk(KERN_NOTICE "jffs_get_node_data\n"));
+	flash_safe_read(fmc->mtd, pos, buf, r);
+
+	D3(printk("  jffs_get_node_data(): Read %u byte%s.\n",
+		  r, (r == 1 ? "" : "s")));
+
+	return r;
+}
+
+
+/* Read data from the file's nodes.  Write the data to the buffer
+   'buf'.  'read_offset' tells how much data we should skip.  */
+int
+jffs_read_data(struct jffs_file *f, unsigned char *buf, __u32 read_offset,
+	       __u32 size)
+{
+	struct jffs_node *node;
+	__u32 read_data = 0; /* Total amount of read data.  */
+	__u32 node_offset = 0;
+	__u32 pos = 0; /* Number of bytes traversed.  */
+
+	D2(printk("jffs_read_data(): file = \"%s\", read_offset = %d, "
+		  "size = %u\n",
+		  (f->name ? f->name : ""), read_offset, size));
+
+	if (read_offset >= f->size) {
+		D(printk("  f->size: %d\n", f->size));
+		return 0;
+	}
+
+	/* First find the node to read data from.  */
+	node = f->range_head;
+	while (pos <= read_offset) {
+		node_offset = read_offset - pos;
+		if (node_offset >= node->data_size) {
+			pos += node->data_size;
+			node = node->range_next;
+		}
+		else {
+			break;
+		}
+	}
+
+	/* "Cats are living proof that not everything in nature
+	   has to be useful."
+	   - Garrison Keilor ('97)  */
+
+	/* Fill the buffer.  */
+	while (node && (read_data < size)) {
+		int r;
+		if (!node->fm) {
+			/* This node does not refer to real data.  */
+			r = min(size - read_data,
+				     node->data_size - node_offset);
+			memset(&buf[read_data], 0, r);
+		}
+		else if ((r = jffs_get_node_data(f, node, &buf[read_data],
+						 node_offset,
+						 size - read_data,
+						 f->c->sb->s_dev)) < 0) {
+			return r;
+		}
+		read_data += r;
+		node_offset = 0;
+		node = node->range_next;
+	}
+	D3(printk("  jffs_read_data(): Read %u bytes.\n", read_data));
+	return read_data;
+}
+
+
+/* Used for traversing all nodes in the hash table.  */
+int
+jffs_foreach_file(struct jffs_control *c, int (*func)(struct jffs_file *))
+{
+	int pos;
+	int r;
+	int result = 0;
+
+	for (pos = 0; pos < c->hash_len; pos++) {
+		struct list_head *p, *next;
+		for (p = c->hash[pos].next; p != &c->hash[pos]; p = next) {
+			/* We need a reference to the next file in the
+			   list because `func' might remove the current
+			   file `f'.  */
+			next = p->next;
+			r = func(list_entry(p, struct jffs_file, hash));
+			if (r < 0)
+				return r;
+			result += r;
+		}
+	}
+
+	return result;
+}
+
+
+/* Free all nodes associated with a file.  */
+int
+jffs_free_node_list(struct jffs_file *f)
+{
+	struct jffs_node *node;
+	struct jffs_node *p;
+
+	D3(printk("jffs_free_node_list(): f #%u, \"%s\"\n",
+		  f->ino, (f->name ? f->name : "")));
+	node = f->version_head;
+	while (node) {
+		p = node;
+		node = node->version_next;
+		jffs_free_node(p);
+		DJM(no_jffs_node--);
+	}
+	return 0;
+}
+
+
+/* Free a file and its name.  */
+int
+jffs_free_file(struct jffs_file *f)
+{
+	D3(printk("jffs_free_file: f #%u, \"%s\"\n",
+		  f->ino, (f->name ? f->name : "")));
+
+	if (f->name) {
+		kfree(f->name);
+		DJM(no_name--);
+	}
+	kfree(f);
+	no_jffs_file--;
+	return 0;
+}
+
+long
+jffs_get_file_count(void)
+{
+	return no_jffs_file;
+}
+
+/* See if a file is deleted. If so, mark that file's nodes as obsolete.  */
+int
+jffs_possibly_delete_file(struct jffs_file *f)
+{
+	struct jffs_node *n;
+
+	D3(printk("jffs_possibly_delete_file(): ino: %u\n",
+		  f->ino));
+
+	ASSERT(if (!f) {
+		printk(KERN_ERR "jffs_possibly_delete_file(): f == NULL\n");
+		return -1;
+	});
+
+	if (f->deleted) {
+		/* First try to remove all older versions.  Commence with
+		   the oldest node.  */
+		for (n = f->version_head; n; n = n->version_next) {
+			if (!n->fm) {
+				continue;
+			}
+			if (jffs_fmfree(f->c->fmc, n->fm, n) < 0) {
+				break;
+			}
+		}
+		/* Unlink the file from the filesystem.  */
+		if (!f->c->building_fs) {
+			jffs_unlink_file_from_tree(f);
+		}
+		jffs_unlink_file_from_hash(f);
+		jffs_free_node_list(f);
+		jffs_free_file(f);
+	}
+	return 0;
+}
+
+
+/* Used in conjunction with jffs_foreach_file() to count the number
+   of files in the file system.  */
+int
+jffs_file_count(struct jffs_file *f)
+{
+	return 1;
+}
+
+
+/* Build up a file's range list from scratch by going through the
+   version list.  */
+int
+jffs_build_file(struct jffs_file *f)
+{
+	struct jffs_node *n;
+
+	D3(printk("jffs_build_file(): ino: %u, name: \"%s\"\n",
+		  f->ino, (f->name ? f->name : "")));
+
+	for (n = f->version_head; n; n = n->version_next) {
+		jffs_update_file(f, n);
+	}
+	return 0;
+}
+
+
+/* Remove an amount of data from a file. If this amount of data is
+   zero, that could mean that a node should be split in two parts.
+   We remove or change the appropriate nodes in the lists.
+
+   Starting offset of area to be removed is node->data_offset,
+   and the length of the area is in node->removed_size.   */
+static int
+jffs_delete_data(struct jffs_file *f, struct jffs_node *node)
+{
+	struct jffs_node *n;
+	__u32 offset = node->data_offset;
+	__u32 remove_size = node->removed_size;
+
+	D3(printk("jffs_delete_data(): offset = %u, remove_size = %u\n",
+		  offset, remove_size));
+
+	if (remove_size == 0
+	    && f->range_tail
+	    && f->range_tail->data_offset + f->range_tail->data_size
+	       == offset) {
+		/* A simple append; nothing to remove or no node to split.  */
+		return 0;
+	}
+
+	/* Find the node where we should begin the removal.  */
+	for (n = f->range_head; n; n = n->range_next) {
+		if (n->data_offset + n->data_size > offset) {
+			break;
+		}
+	}
+	if (!n) {
+		/* If there's no data in the file there's no data to
+		   remove either.  */
+		return 0;
+	}
+
+	if (n->data_offset > offset) {
+		/* XXX: Not implemented yet.  */
+		printk(KERN_WARNING "JFFS: An unexpected situation "
+		       "occurred in jffs_delete_data.\n");
+	}
+	else if (n->data_offset < offset) {
+		/* See if the node has to be split into two parts.  */
+		if (n->data_offset + n->data_size > offset + remove_size) {
+			/* Do the split.  */
+			struct jffs_node *new_node;
+			D3(printk("jffs_delete_data(): Split node with "
+				  "version number %u.\n", n->version));
+
+			if (!(new_node = jffs_alloc_node())) {
+				D(printk("jffs_delete_data(): -ENOMEM\n"));
+				return -ENOMEM;
+			}
+			DJM(no_jffs_node++);
+
+			new_node->ino = n->ino;
+			new_node->version = n->version;
+			new_node->data_offset = offset;
+			new_node->data_size = n->data_size - (remove_size + (offset - n->data_offset));
+			new_node->fm_offset = n->fm_offset + (remove_size + (offset - n->data_offset));
+			new_node->name_size = n->name_size;
+			new_node->fm = n->fm;
+			new_node->version_prev = n;
+			new_node->version_next = n->version_next;
+			if (new_node->version_next) {
+				new_node->version_next->version_prev
+				= new_node;
+			}
+			else {
+				f->version_tail = new_node;
+			}
+			n->version_next = new_node;
+			new_node->range_prev = n;
+			new_node->range_next = n->range_next;
+			if (new_node->range_next) {
+				new_node->range_next->range_prev = new_node;
+			}
+			else {
+				f->range_tail = new_node;
+			}
+			/* A very interesting can of worms.  */
+			n->range_next = new_node;
+			n->data_size = offset - n->data_offset;
+			if (new_node->fm)
+				jffs_add_node(new_node);
+			else {
+				D1(printk(KERN_WARNING "jffs_delete_data(): Splitting an empty node (file hold).\n!"));
+				D1(printk(KERN_WARNING "FIXME: Did dwmw2 do the right thing here?\n"));
+			}
+			n = new_node->range_next;
+			remove_size = 0;
+		}
+		else {
+			/* No.  No need to split the node.  Just remove
+			   the end of the node.  */
+			int r = min(n->data_offset + n->data_size
+					 - offset, remove_size);
+			n->data_size -= r;
+			remove_size -= r;
+			n = n->range_next;
+		}
+	}
+
+	/* Remove as many nodes as necessary.  */
+	while (n && remove_size) {
+		if (n->data_size <= remove_size) {
+			struct jffs_node *p = n;
+			remove_size -= n->data_size;
+			n = n->range_next;
+			D3(printk("jffs_delete_data(): Removing node: "
+				  "ino: %u, version: %u%s\n",
+				  p->ino, p->version,
+				  (p->fm ? "" : " (virtual)")));
+			if (p->fm) {
+				jffs_fmfree(f->c->fmc, p->fm, p);
+			}
+			jffs_unlink_node_from_range_list(f, p);
+			jffs_unlink_node_from_version_list(f, p);
+			jffs_free_node(p);
+			DJM(no_jffs_node--);
+		}
+		else {
+			n->data_size -= remove_size;
+			n->fm_offset += remove_size;
+			n->data_offset -= (node->removed_size - remove_size);
+			n = n->range_next;
+			break;
+		}
+	}
+
+	/* Adjust the following nodes' information about offsets etc.  */
+	while (n && node->removed_size) {
+		n->data_offset -= node->removed_size;
+		n = n->range_next;
+	}
+
+	if (node->removed_size > (f->size - node->data_offset)) {
+		/* It's possible that the removed_size is in fact
+		 * greater than the amount of data we actually thought
+		 * were present in the first place - some of the nodes 
+		 * which this node originally obsoleted may already have
+		 * been deleted from the flash by subsequent garbage 
+		 * collection.
+		 *
+		 * If this is the case, don't let f->size go negative.
+		 * Bad things would happen :)
+		 */
+		f->size = node->data_offset;
+	} else {
+		f->size -= node->removed_size;
+	}
+	D3(printk("jffs_delete_data(): f->size = %d\n", f->size));
+	return 0;
+} /* jffs_delete_data()  */
+
+
+/* Insert some data into a file.  Prior to the call to this function,
+   jffs_delete_data should be called.  */
+static int
+jffs_insert_data(struct jffs_file *f, struct jffs_node *node)
+{
+	D3(printk("jffs_insert_data(): node->data_offset = %u, "
+		  "node->data_size = %u, f->size = %u\n",
+		  node->data_offset, node->data_size, f->size));
+
+	/* Find the position where we should insert data.  */
+	retry:
+	if (node->data_offset == f->size) {
+		/* A simple append.  This is the most common operation.  */
+		node->range_next = 0;
+		node->range_prev = f->range_tail;
+		if (node->range_prev) {
+			node->range_prev->range_next = node;
+		}
+		f->range_tail = node;
+		f->size += node->data_size;
+		if (!f->range_head) {
+			f->range_head = node;
+		}
+	}
+	else if (node->data_offset < f->size) {
+		/* Trying to insert data into the middle of the file.  This
+		   means no problem because jffs_delete_data() has already
+		   prepared the range list for us.  */
+		struct jffs_node *n;
+
+		/* Find the correct place for the insertion and then insert
+		   the node.  */
+		for (n = f->range_head; n; n = n->range_next) {
+			D2(printk("Cool stuff's happening!\n"));
+
+			if (n->data_offset == node->data_offset) {
+				node->range_prev = n->range_prev;
+				if (node->range_prev) {
+					node->range_prev->range_next = node;
+				}
+				else {
+					f->range_head = node;
+				}
+				node->range_next = n;
+				n->range_prev = node;
+				break;
+			}
+			ASSERT(else if (n->data_offset + n->data_size >
+					node->data_offset) {
+				printk(KERN_ERR "jffs_insert_data(): "
+				       "Couldn't find a place to insert "
+				       "the data!\n");
+				return -1;
+			});
+		}
+
+		/* Adjust later nodes' offsets etc.  */
+		n = node->range_next;
+		while (n) {
+			n->data_offset += node->data_size;
+			n = n->range_next;
+		}
+		f->size += node->data_size;
+	}
+	else if (node->data_offset > f->size) {
+		/* Okay.  This is tricky.  This means that we want to insert
+		   data at a place that is beyond the limits of the file as
+		   it is constructed right now.  This is actually a common
+		   event that for instance could occur during the mounting
+		   of the file system if a large file have been truncated,
+		   rewritten and then only partially garbage collected.  */
+
+		struct jffs_node *n;
+
+		/* We need a place holder for the data that is missing in
+		   front of this insertion.  This "virtual node" will not
+		   be associated with any space on the flash device.  */
+		struct jffs_node *virtual_node;
+		if (!(virtual_node = jffs_alloc_node())) {
+			return -ENOMEM;
+		}
+
+		D(printk("jffs_insert_data: Inserting a virtual node.\n"));
+		D(printk("  node->data_offset = %u\n", node->data_offset));
+		D(printk("  f->size = %u\n", f->size));
+
+		virtual_node->ino = node->ino;
+		virtual_node->version = node->version;
+		virtual_node->removed_size = 0;
+		virtual_node->fm_offset = 0;
+		virtual_node->name_size = 0;
+		virtual_node->fm = 0; /* This is a virtual data holder.  */
+		virtual_node->version_prev = 0;
+		virtual_node->version_next = 0;
+		virtual_node->range_next = 0;
+
+		/* Are there any data at all in the file yet?  */
+		if (f->range_head) {
+			virtual_node->data_offset
+			= f->range_tail->data_offset
+			  + f->range_tail->data_size;
+			virtual_node->data_size
+			= node->data_offset - virtual_node->data_offset;
+			virtual_node->range_prev = f->range_tail;
+			f->range_tail->range_next = virtual_node;
+		}
+		else {
+			virtual_node->data_offset = 0;
+			virtual_node->data_size = node->data_offset;
+			virtual_node->range_prev = 0;
+			f->range_head = virtual_node;
+		}
+
+		f->range_tail = virtual_node;
+		f->size += virtual_node->data_size;
+
+		/* Insert this virtual node in the version list as well.  */
+		for (n = f->version_head; n ; n = n->version_next) {
+			if (n->version == virtual_node->version) {
+				virtual_node->version_prev = n->version_prev;
+				n->version_prev = virtual_node;
+				if (virtual_node->version_prev) {
+					virtual_node->version_prev
+					->version_next = virtual_node;
+				}
+				else {
+					f->version_head = virtual_node;
+				}
+				virtual_node->version_next = n;
+				break;
+			}
+		}
+
+		D(jffs_print_node(virtual_node));
+
+		/* Make a new try to insert the node.  */
+		goto retry;
+	}
+
+	D3(printk("jffs_insert_data(): f->size = %d\n", f->size));
+	return 0;
+}
+
+
+/* A new node (with data) has been added to the file and now the range
+   list has to be modified.  */
+static int
+jffs_update_file(struct jffs_file *f, struct jffs_node *node)
+{
+	int err;
+
+	D3(printk("jffs_update_file(): ino: %u, version: %u\n",
+		  f->ino, node->version));
+
+	if (node->data_size == 0) {
+		if (node->removed_size == 0) {
+			/* data_offset == X  */
+			/* data_size == 0  */
+			/* remove_size == 0  */
+		}
+		else {
+			/* data_offset == X  */
+			/* data_size == 0  */
+			/* remove_size != 0  */
+			if ((err = jffs_delete_data(f, node)) < 0) {
+				return err;
+			}
+		}
+	}
+	else {
+		/* data_offset == X  */
+		/* data_size != 0  */
+		/* remove_size == Y  */
+		if ((err = jffs_delete_data(f, node)) < 0) {
+			return err;
+		}
+		if ((err = jffs_insert_data(f, node)) < 0) {
+			return err;
+		}
+	}
+	return 0;
+}
+
+
+/* Print the contents of a node.  */
+void
+jffs_print_node(struct jffs_node *n)
+{
+	D(printk("jffs_node: 0x%p\n", n));
+	D(printk("{\n"));
+	D(printk("        0x%08x, /* version  */\n", n->version));
+	D(printk("        0x%08x, /* data_offset  */\n", n->data_offset));
+	D(printk("        0x%08x, /* data_size  */\n", n->data_size));
+	D(printk("        0x%08x, /* removed_size  */\n", n->removed_size));
+	D(printk("        0x%08x, /* fm_offset  */\n", n->fm_offset));
+	D(printk("        0x%02x,       /* name_size  */\n", n->name_size));
+	D(printk("        0x%p, /* fm,  fm->offset: %u  */\n",
+		 n->fm, (n->fm ? n->fm->offset : 0)));
+	D(printk("        0x%p, /* version_prev  */\n", n->version_prev));
+	D(printk("        0x%p, /* version_next  */\n", n->version_next));
+	D(printk("        0x%p, /* range_prev  */\n", n->range_prev));
+	D(printk("        0x%p, /* range_next  */\n", n->range_next));
+	D(printk("}\n"));
+}
+
+
+/* Print the contents of a raw inode.  */
+void
+jffs_print_raw_inode(struct jffs_raw_inode *raw_inode)
+{
+	D(printk("jffs_raw_inode: inode number: %u\n", raw_inode->ino));
+	D(printk("{\n"));
+	D(printk("        0x%08x, /* magic  */\n", raw_inode->magic));
+	D(printk("        0x%08x, /* ino  */\n", raw_inode->ino));
+	D(printk("        0x%08x, /* pino  */\n", raw_inode->pino));
+	D(printk("        0x%08x, /* version  */\n", raw_inode->version));
+	D(printk("        0x%08x, /* mode  */\n", raw_inode->mode));
+	D(printk("        0x%04x,     /* uid  */\n", raw_inode->uid));
+	D(printk("        0x%04x,     /* gid  */\n", raw_inode->gid));
+	D(printk("        0x%08x, /* atime  */\n", raw_inode->atime));
+	D(printk("        0x%08x, /* mtime  */\n", raw_inode->mtime));
+	D(printk("        0x%08x, /* ctime  */\n", raw_inode->ctime));
+	D(printk("        0x%08x, /* offset  */\n", raw_inode->offset));
+	D(printk("        0x%08x, /* dsize  */\n", raw_inode->dsize));
+	D(printk("        0x%08x, /* rsize  */\n", raw_inode->rsize));
+	D(printk("        0x%02x,       /* nsize  */\n", raw_inode->nsize));
+	D(printk("        0x%02x,       /* nlink  */\n", raw_inode->nlink));
+	D(printk("        0x%02x,       /* spare  */\n",
+		 raw_inode->spare));
+	D(printk("        %u,          /* rename  */\n",
+		 raw_inode->rename));
+	D(printk("        %u,          /* deleted  */\n",
+		 raw_inode->deleted));
+	D(printk("        0x%02x,       /* accurate  */\n",
+		 raw_inode->accurate));
+	D(printk("        0x%08x, /* dchksum  */\n", raw_inode->dchksum));
+	D(printk("        0x%04x,     /* nchksum  */\n", raw_inode->nchksum));
+	D(printk("        0x%04x,     /* chksum  */\n", raw_inode->chksum));
+	D(printk("}\n"));
+}
+
+
+/* Print the contents of a file.  */
+int
+jffs_print_file(struct jffs_file *f)
+{
+	D(int i);
+	D(printk("jffs_file: 0x%p\n", f));
+	D(printk("{\n"));
+	D(printk("        0x%08x, /* ino  */\n", f->ino));
+	D(printk("        0x%08x, /* pino  */\n", f->pino));
+	D(printk("        0x%08x, /* mode  */\n", f->mode));
+	D(printk("        0x%04x,     /* uid  */\n", f->uid));
+	D(printk("        0x%04x,     /* gid  */\n", f->gid));
+	D(printk("        0x%08x, /* atime  */\n", f->atime));
+	D(printk("        0x%08x, /* mtime  */\n", f->mtime));
+	D(printk("        0x%08x, /* ctime  */\n", f->ctime));
+	D(printk("        0x%02x,       /* nsize  */\n", f->nsize));
+	D(printk("        0x%02x,       /* nlink  */\n", f->nlink));
+	D(printk("        0x%02x,       /* deleted  */\n", f->deleted));
+	D(printk("        \"%s\", ", (f->name ? f->name : "")));
+	D(for (i = strlen(f->name ? f->name : ""); i < 8; ++i) {
+		printk(" ");
+	});
+	D(printk("/* name  */\n"));
+	D(printk("        0x%08x, /* size  */\n", f->size));
+	D(printk("        0x%08x, /* highest_version  */\n",
+		 f->highest_version));
+	D(printk("        0x%p, /* c  */\n", f->c));
+	D(printk("        0x%p, /* parent  */\n", f->parent));
+	D(printk("        0x%p, /* children  */\n", f->children));
+	D(printk("        0x%p, /* sibling_prev  */\n", f->sibling_prev));
+	D(printk("        0x%p, /* sibling_next  */\n", f->sibling_next));
+	D(printk("        0x%p, /* hash_prev  */\n", f->hash.prev));
+	D(printk("        0x%p, /* hash_next  */\n", f->hash.next));
+	D(printk("        0x%p, /* range_head  */\n", f->range_head));
+	D(printk("        0x%p, /* range_tail  */\n", f->range_tail));
+	D(printk("        0x%p, /* version_head  */\n", f->version_head));
+	D(printk("        0x%p, /* version_tail  */\n", f->version_tail));
+	D(printk("}\n"));
+	return 0;
+}
+
+
+void
+jffs_print_hash_table(struct jffs_control *c)
+{
+	int i;
+
+	printk("JFFS: Dumping the file system's hash table...\n");
+	for (i = 0; i < c->hash_len; i++) {
+		struct list_head *p;
+		for (p = c->hash[i].next; p != &c->hash[i]; p = p->next) {
+			struct jffs_file *f=list_entry(p,struct jffs_file,hash);
+			printk("*** c->hash[%u]: \"%s\" "
+			       "(ino: %u, pino: %u)\n",
+			       i, (f->name ? f->name : ""),
+			       f->ino, f->pino);
+		}
+	}
+}
+
+
+void
+jffs_print_tree(struct jffs_file *first_file, int indent)
+{
+	struct jffs_file *f;
+	char *space;
+	int dir;
+
+	if (!first_file) {
+		return;
+	}
+
+	if (!(space = (char *) kmalloc(indent + 1, GFP_KERNEL))) {
+		printk("jffs_print_tree(): Out of memory!\n");
+		return;
+	}
+
+	memset(space, ' ', indent);
+	space[indent] = '\0';
+
+	for (f = first_file; f; f = f->sibling_next) {
+		dir = S_ISDIR(f->mode);
+		printk("%s%s%s (ino: %u, highest_version: %u, size: %u)\n",
+		       space, (f->name ? f->name : ""), (dir ? "/" : ""),
+		       f->ino, f->highest_version, f->size);
+		if (dir) {
+			jffs_print_tree(f->children, indent + 2);
+		}
+	}
+
+	kfree(space);
+}
+
+
+#if defined(JFFS_MEMORY_DEBUG) && JFFS_MEMORY_DEBUG
+void
+jffs_print_memory_allocation_statistics(void)
+{
+	static long printout = 0;
+	printk("________ Memory printout #%ld ________\n", ++printout);
+	printk("no_jffs_file = %ld\n", no_jffs_file);
+	printk("no_jffs_node = %ld\n", no_jffs_node);
+	printk("no_jffs_control = %ld\n", no_jffs_control);
+	printk("no_jffs_raw_inode = %ld\n", no_jffs_raw_inode);
+	printk("no_jffs_node_ref = %ld\n", no_jffs_node_ref);
+	printk("no_jffs_fm = %ld\n", no_jffs_fm);
+	printk("no_jffs_fmcontrol = %ld\n", no_jffs_fmcontrol);
+	printk("no_hash = %ld\n", no_hash);
+	printk("no_name = %ld\n", no_name);
+	printk("\n");
+}
+#endif
+
+
+/* Rewrite `size' bytes, and begin at `node'.  */
+int
+jffs_rewrite_data(struct jffs_file *f, struct jffs_node *node, __u32 size)
+{
+	struct jffs_control *c = f->c;
+	struct jffs_fmcontrol *fmc = c->fmc;
+	struct jffs_raw_inode raw_inode;
+	struct jffs_node *new_node;
+	struct jffs_fm *fm;
+	__u32 pos;
+	__u32 pos_dchksum;
+	__u32 total_name_size;
+	__u32 total_data_size;
+	__u32 total_size;
+	int err;
+
+	D1(printk("***jffs_rewrite_data(): node: %u, name: \"%s\", size: %u\n",
+		  f->ino, (f->name ? f->name : "(null)"), size));
+
+	/* Create and initialize the new node.  */
+	if (!(new_node = jffs_alloc_node())) {
+		D(printk("jffs_rewrite_data(): "
+			 "Failed to allocate node.\n"));
+		return -ENOMEM;
+	}
+	DJM(no_jffs_node++);
+	new_node->data_offset = node->data_offset;
+	new_node->removed_size = size;
+	total_name_size = JFFS_PAD(f->nsize);
+	total_data_size = JFFS_PAD(size);
+	total_size = sizeof(struct jffs_raw_inode)
+		     + total_name_size + total_data_size;
+	new_node->fm_offset = sizeof(struct jffs_raw_inode)
+			      + total_name_size;
+
+retry:
+	jffs_fm_write_lock(fmc);
+	err = 0;
+
+	if ((err = jffs_fmalloc(fmc, total_size, new_node, &fm)) < 0) {
+		DJM(no_jffs_node--);
+		jffs_fm_write_unlock(fmc);
+		D(printk("jffs_rewrite_data(): Failed to allocate fm.\n"));
+		jffs_free_node(new_node);
+		return err;
+	}
+	else if (!fm->nodes) {
+		/* The jffs_fm struct that we got is not big enough.  */
+		/* This should never happen, because we deal with this case
+		   in jffs_garbage_collect_next().*/
+		printk(KERN_WARNING "jffs_rewrite_data(): Allocated node is too small (%d bytes of %d)\n", fm->size, total_size);
+		if ((err = jffs_write_dummy_node(c, fm)) < 0) {
+			D(printk("jffs_rewrite_data(): "
+				 "jffs_write_dummy_node() Failed!\n"));
+		} else {
+			err = -ENOSPC;
+		}
+		DJM(no_jffs_fm--);
+		jffs_fm_write_unlock(fmc);
+		kfree(fm);
+		
+		return err;
+	}
+	new_node->fm = fm;
+
+	/* Initialize the raw inode.  */
+	raw_inode.magic = JFFS_MAGIC_BITMASK;
+	raw_inode.ino = f->ino;
+	raw_inode.pino = f->pino;
+	raw_inode.version = f->highest_version + 1;
+	raw_inode.mode = f->mode;
+	raw_inode.uid = f->uid;
+	raw_inode.gid = f->gid;
+	raw_inode.atime = f->atime;
+	raw_inode.mtime = f->mtime;
+	raw_inode.ctime = f->ctime;
+	raw_inode.offset = node->data_offset;
+	raw_inode.dsize = size;
+	raw_inode.rsize = size;
+	raw_inode.nsize = f->nsize;
+	raw_inode.nlink = f->nlink;
+	raw_inode.spare = 0;
+	raw_inode.rename = 0;
+	raw_inode.deleted = f->deleted;
+	raw_inode.accurate = 0xff;
+	raw_inode.dchksum = 0;
+	raw_inode.nchksum = 0;
+
+	pos = new_node->fm->offset;
+	pos_dchksum = pos +JFFS_RAW_INODE_DCHKSUM_OFFSET;
+
+	D3(printk("jffs_rewrite_data(): Writing this raw inode "
+		  "to pos 0x%ul.\n", pos));
+	D3(jffs_print_raw_inode(&raw_inode));
+
+	if ((err = flash_safe_write(fmc->mtd, pos,
+				    (u_char *) &raw_inode,
+				    sizeof(struct jffs_raw_inode)
+				    - sizeof(__u32)
+				    - sizeof(__u16) - sizeof(__u16))) < 0) {
+		jffs_fmfree_partly(fmc, fm,
+				   total_name_size + total_data_size);
+		jffs_fm_write_unlock(fmc);
+		printk(KERN_ERR "JFFS: jffs_rewrite_data: Write error during "
+			"rewrite. (raw inode)\n");
+		printk(KERN_ERR "JFFS: jffs_rewrite_data: Now retrying "
+			"rewrite. (raw inode)\n");
+		goto retry;
+	}
+	pos += sizeof(struct jffs_raw_inode);
+
+	/* Write the name to the flash memory.  */
+	if (f->nsize) {
+		D3(printk("jffs_rewrite_data(): Writing name \"%s\" to "
+			  "pos 0x%ul.\n", f->name, (unsigned int) pos));
+		if ((err = flash_safe_write(fmc->mtd, pos,
+					    (u_char *)f->name,
+					    f->nsize)) < 0) {
+			jffs_fmfree_partly(fmc, fm, total_data_size);
+			jffs_fm_write_unlock(fmc);
+			printk(KERN_ERR "JFFS: jffs_rewrite_data: Write "
+				"error during rewrite. (name)\n");
+			printk(KERN_ERR "JFFS: jffs_rewrite_data: Now retrying "
+				"rewrite. (name)\n");
+			goto retry;
+		}
+		pos += total_name_size;
+		raw_inode.nchksum = jffs_checksum(f->name, f->nsize);
+	}
+
+	/* Write the data.  */
+	if (size) {
+		int r;
+		unsigned char *page;
+		__u32 offset = node->data_offset;
+
+		if (!(page = (unsigned char *)__get_free_page(GFP_KERNEL))) {
+			jffs_fmfree_partly(fmc, fm, 0);
+			return -1;
+		}
+
+		while (size) {
+			__u32 s = min(size, (__u32)PAGE_SIZE);
+			if ((r = jffs_read_data(f, (char *)page,
+						offset, s)) < s) {
+				free_page((unsigned long)page);
+				jffs_fmfree_partly(fmc, fm, 0);
+				jffs_fm_write_unlock(fmc);
+				printk(KERN_ERR "JFFS: jffs_rewrite_data: "
+					 "jffs_read_data() "
+					 "failed! (r = %d)\n", r);
+				return -1;
+			}
+			if ((err = flash_safe_write(fmc->mtd,
+						    pos, page, r)) < 0) {
+				free_page((unsigned long)page);
+				jffs_fmfree_partly(fmc, fm, 0);
+				jffs_fm_write_unlock(fmc);
+				printk(KERN_ERR "JFFS: jffs_rewrite_data: "
+				       "Write error during rewrite. "
+				       "(data)\n");
+				goto retry;
+			}
+			pos += r;
+			size -= r;
+			offset += r;
+			raw_inode.dchksum += jffs_checksum(page, r);
+		}
+
+	        free_page((unsigned long)page);
+	}
+
+	raw_inode.accurate = 0;
+	raw_inode.chksum = jffs_checksum(&raw_inode,
+					 sizeof(struct jffs_raw_inode)
+					 - sizeof(__u16));
+
+	/* Add the checksum.  */
+	if ((err
+	     = flash_safe_write(fmc->mtd, pos_dchksum,
+				&((u_char *)
+				&raw_inode)[JFFS_RAW_INODE_DCHKSUM_OFFSET],
+				sizeof(__u32) + sizeof(__u16)
+				+ sizeof(__u16))) < 0) {
+		jffs_fmfree_partly(fmc, fm, 0);
+		jffs_fm_write_unlock(fmc);
+		printk(KERN_ERR "JFFS: jffs_rewrite_data: Write error during "
+		       "rewrite. (checksum)\n");
+		goto retry;
+	}
+
+	/* Now make the file system aware of the newly written node.  */
+	jffs_insert_node(c, f, &raw_inode, f->name, new_node);
+	jffs_fm_write_unlock(fmc);
+
+	D3(printk("jffs_rewrite_data(): Leaving...\n"));
+	return 0;
+} /* jffs_rewrite_data()  */
+
+
+/* jffs_garbage_collect_next implements one step in the garbage collect
+   process and is often called multiple times at each occasion of a
+   garbage collect.  */
+
+int
+jffs_garbage_collect_next(struct jffs_control *c)
+{
+	struct jffs_fmcontrol *fmc = c->fmc;
+	struct jffs_node *node;
+	struct jffs_file *f;
+	int err = 0;
+	__u32 size;
+	__u32 data_size;
+	__u32 total_name_size;
+	__u32 extra_available;
+	__u32 space_needed;
+	__u32 free_chunk_size1 = jffs_free_size1(fmc);
+	D2(__u32 free_chunk_size2 = jffs_free_size2(fmc));
+
+	/* Get the oldest node in the flash.  */
+	node = jffs_get_oldest_node(fmc);
+	ASSERT(if (!node) {
+		printk(KERN_ERR "JFFS: jffs_garbage_collect_next: "
+		       "No oldest node found!\n");
+                err = -1;
+                goto jffs_garbage_collect_next_end;
+		
+
+	});
+
+	/* Find its corresponding file too.  */
+	f = jffs_find_file(c, node->ino);
+
+	if (!f) {
+	  printk (KERN_ERR "JFFS: jffs_garbage_collect_next: "
+                  "No file to garbage collect! "
+		  "(ino = 0x%08x)\n", node->ino);
+          /* FIXME: Free the offending node and recover. */
+          err = -1;
+          goto jffs_garbage_collect_next_end;
+	}
+
+	/* We always write out the name. Theoretically, we don't need
+	   to, but for now it's easier - because otherwise we'd have
+	   to keep track of how many times the current name exists on
+	   the flash and make sure it never reaches zero.
+
+	   The current approach means that would be possible to cause
+	   the GC to end up eating its tail by writing lots of nodes
+	   with no name for it to garbage-collect. Hence the change in
+	   inode.c to write names with _every_ node.
+
+	   It sucks, but it _should_ work.
+	*/
+	total_name_size = JFFS_PAD(f->nsize);
+
+	D1(printk("jffs_garbage_collect_next(): \"%s\", "
+		  "ino: %u, version: %u, location 0x%x, dsize %u\n",
+		  (f->name ? f->name : ""), node->ino, node->version, 
+		  node->fm->offset, node->data_size));
+
+	/* Compute how many data it's possible to rewrite at the moment.  */
+	data_size = f->size - node->data_offset;
+
+	/* And from that, the total size of the chunk we want to write */
+	size = sizeof(struct jffs_raw_inode) + total_name_size
+	       + data_size + JFFS_GET_PAD_BYTES(data_size);
+
+	/* If that's more than max_chunk_size, reduce it accordingly */
+	if (size > fmc->max_chunk_size) {
+		size = fmc->max_chunk_size;
+		data_size = size - sizeof(struct jffs_raw_inode)
+			    - total_name_size;
+	}
+
+	/* If we're asking to take up more space than free_chunk_size1
+	   but we _could_ fit in it, shrink accordingly.
+	*/
+	if (size > free_chunk_size1) {
+
+		if (free_chunk_size1 <
+		    (sizeof(struct jffs_raw_inode) + total_name_size + BLOCK_SIZE)){
+			/* The space left is too small to be of any
+			   use really.  */
+			struct jffs_fm *dirty_fm
+			= jffs_fmalloced(fmc,
+					 fmc->tail->offset + fmc->tail->size,
+					 free_chunk_size1, NULL);
+			if (!dirty_fm) {
+				printk(KERN_ERR "JFFS: "
+				       "jffs_garbage_collect_next: "
+				       "Failed to allocate `dirty' "
+				       "flash memory!\n");
+				err = -1;
+                                goto jffs_garbage_collect_next_end;
+			}
+			D1(printk("Dirtying end of flash - too small\n"));
+			jffs_write_dummy_node(c, dirty_fm);
+                        err = 0;
+			goto jffs_garbage_collect_next_end;
+		}
+		D1(printk("Reducing size of new node from %d to %d to avoid "
+			  " exceeding free_chunk_size1\n",
+			  size, free_chunk_size1));
+
+		size = free_chunk_size1;
+		data_size = size - sizeof(struct jffs_raw_inode)
+			    - total_name_size;
+	}
+
+
+	/* Calculate the amount of space needed to hold the nodes
+	   which are remaining in the tail */
+	space_needed = fmc->min_free_size - (node->fm->offset % fmc->sector_size);
+
+	/* From that, calculate how much 'extra' space we can use to
+	   increase the size of the node we're writing from the size
+	   of the node we're obsoleting
+	*/
+	if (space_needed > fmc->free_size) {
+		/* If we've gone below min_free_size for some reason,
+		   don't fuck up. This is why we have 
+		   min_free_size > sector_size. Whinge about it though,
+		   just so I can convince myself my maths is right.
+		*/
+		D1(printk(KERN_WARNING "jffs_garbage_collect_next(): "
+			  "space_needed %d exceeded free_size %d\n",
+			  space_needed, fmc->free_size));
+		extra_available = 0;
+	} else {
+		extra_available = fmc->free_size - space_needed;
+	}
+
+	/* Check that we don't use up any more 'extra' space than
+	   what's available */
+	if (size > JFFS_PAD(node->data_size) + total_name_size + 
+	    sizeof(struct jffs_raw_inode) + extra_available) {
+		D1(printk("Reducing size of new node from %d to %ld to avoid "
+		       "catching our tail\n", size, 
+			  (long) (JFFS_PAD(node->data_size) + JFFS_PAD(node->name_size) + 
+			  sizeof(struct jffs_raw_inode) + extra_available)));
+		D1(printk("space_needed = %d, extra_available = %d\n", 
+			  space_needed, extra_available));
+
+		size = JFFS_PAD(node->data_size) + total_name_size + 
+		  sizeof(struct jffs_raw_inode) + extra_available;
+		data_size = size - sizeof(struct jffs_raw_inode)
+			- total_name_size;
+	};
+
+	D2(printk("  total_name_size: %u\n", total_name_size));
+	D2(printk("  data_size: %u\n", data_size));
+	D2(printk("  size: %u\n", size));
+	D2(printk("  f->nsize: %u\n", f->nsize));
+	D2(printk("  f->size: %u\n", f->size));
+	D2(printk("  node->data_offset: %u\n", node->data_offset));
+	D2(printk("  free_chunk_size1: %u\n", free_chunk_size1));
+	D2(printk("  free_chunk_size2: %u\n", free_chunk_size2));
+	D2(printk("  node->fm->offset: 0x%08x\n", node->fm->offset));
+
+	if ((err = jffs_rewrite_data(f, node, data_size))) {
+		printk(KERN_WARNING "jffs_rewrite_data() failed: %d\n", err);
+		return err;
+	}
+	  
+jffs_garbage_collect_next_end:
+	D3(printk("jffs_garbage_collect_next: Leaving...\n"));
+	return err;
+} /* jffs_garbage_collect_next */
+
+
+/* If an obsolete node is partly going to be erased due to garbage
+   collection, the part that isn't going to be erased must be filled
+   with zeroes so that the scan of the flash will work smoothly next
+   time.  (The data in the file could for instance be a JFFS image
+   which could cause enormous confusion during a scan of the flash
+   device if we didn't do this.)
+     There are two phases in this procedure: First, the clearing of
+   the name and data parts of the node. Second, possibly also clearing
+   a part of the raw inode as well.  If the box is power cycled during
+   the first phase, only the checksum of this node-to-be-cleared-at-
+   the-end will be wrong.  If the box is power cycled during, or after,
+   the clearing of the raw inode, the information like the length of
+   the name and data parts are zeroed.  The next time the box is
+   powered up, the scanning algorithm manages this faulty data too
+   because:
+
+   - The checksum is invalid and thus the raw inode must be discarded
+     in any case.
+   - If the lengths of the data part or the name part are zeroed, the
+     scanning just continues after the raw inode.  But after the inode
+     the scanning procedure just finds zeroes which is the same as
+     dirt.
+
+   So, in the end, this could never fail. :-)  Even if it does fail,
+   the scanning algorithm should manage that too.  */
+
+static int
+jffs_clear_end_of_node(struct jffs_control *c, __u32 erase_size)
+{
+	struct jffs_fm *fm;
+	struct jffs_fmcontrol *fmc = c->fmc;
+	__u32 zero_offset;
+	__u32 zero_size;
+	__u32 zero_offset_data;
+	__u32 zero_size_data;
+	__u32 cutting_raw_inode = 0;
+
+	if (!(fm = jffs_cut_node(fmc, erase_size))) {
+		D3(printk("jffs_clear_end_of_node(): fm == NULL\n"));
+		return 0;
+	}
+
+	/* Where and how much shall we clear?  */
+	zero_offset = fmc->head->offset + erase_size;
+	zero_size = fm->offset + fm->size - zero_offset;
+
+	/* Do we have to clear the raw_inode explicitly?  */
+	if (fm->size - zero_size < sizeof(struct jffs_raw_inode)) {
+		cutting_raw_inode = sizeof(struct jffs_raw_inode)
+				    - (fm->size - zero_size);
+	}
+
+	/* First, clear the name and data fields.  */
+	zero_offset_data = zero_offset + cutting_raw_inode;
+	zero_size_data = zero_size - cutting_raw_inode;
+	flash_safe_acquire(fmc->mtd);
+	flash_memset(fmc->mtd, zero_offset_data, 0, zero_size_data);
+	flash_safe_release(fmc->mtd);
+
+	/* Should we clear a part of the raw inode?  */
+	if (cutting_raw_inode) {
+		/* I guess it is ok to clear the raw inode in this order.  */
+		flash_safe_acquire(fmc->mtd);
+		flash_memset(fmc->mtd, zero_offset, 0,
+			     cutting_raw_inode);
+		flash_safe_release(fmc->mtd);
+	}
+
+	return 0;
+} /* jffs_clear_end_of_node()  */
+
+/* Try to erase as much as possible of the dirt in the flash memory.  */
+long
+jffs_try_to_erase(struct jffs_control *c)
+{
+	struct jffs_fmcontrol *fmc = c->fmc;
+	long erase_size;
+	int err;
+	__u32 offset;
+
+	D3(printk("jffs_try_to_erase()\n"));
+
+	erase_size = jffs_erasable_size(fmc);
+
+	D2(printk("jffs_try_to_erase(): erase_size = %ld\n", erase_size));
+
+	if (erase_size == 0) {
+		return 0;
+	}
+	else if (erase_size < 0) {
+		printk(KERN_ERR "JFFS: jffs_try_to_erase: "
+		       "jffs_erasable_size returned %ld.\n", erase_size);
+		return erase_size;
+	}
+
+	if ((err = jffs_clear_end_of_node(c, erase_size)) < 0) {
+		printk(KERN_ERR "JFFS: jffs_try_to_erase: "
+		       "Clearing of node failed.\n");
+		return err;
+	}
+
+	offset = fmc->head->offset;
+
+	/* Now, let's try to do the erase.  */
+	if ((err = flash_erase_region(fmc->mtd,
+				      offset, erase_size)) < 0) {
+		printk(KERN_ERR "JFFS: Erase of flash failed. "
+		       "offset = %u, erase_size = %ld\n",
+		       offset, erase_size);
+		/* XXX: Here we should allocate this area as dirty
+		   with jffs_fmalloced or something similar.  Now
+		   we just report the error.  */
+		return err;
+	}
+
+#if 0
+	/* Check if the erased sectors really got erased.  */
+	{
+		__u32 pos;
+		__u32 end;
+
+		pos = (__u32)flash_get_direct_pointer(c->sb->s_dev, offset);
+		end = pos + erase_size;
+
+		D2(printk("JFFS: Checking erased sector(s)...\n"));
+
+		flash_safe_acquire(fmc->mtd);
+
+		for (; pos < end; pos += 4) {
+			if (*(__u32 *)pos != JFFS_EMPTY_BITMASK) {
+				printk("JFFS: Erase failed! pos = 0x%lx\n",
+				       (long)pos);
+				jffs_hexdump(fmc->mtd, pos,
+					     jffs_min(256, end - pos));
+				err = -1;
+				break;
+			}
+		}
+
+		flash_safe_release(fmc->mtd);
+
+		if (!err) {
+			D2(printk("JFFS: Erase succeeded.\n"));
+		}
+		else {
+			/* XXX: Here we should allocate the memory
+			   with jffs_fmalloced() in order to prevent
+			   JFFS from using this area accidentally.  */
+			return err;
+		}
+	}
+#endif
+
+	/* Update the flash memory data structures.  */
+	jffs_sync_erase(fmc, erase_size);
+
+	return erase_size;
+}
+
+
+/* There are different criteria that should trigger a garbage collect:
+
+   1. There is too much dirt in the memory.
+   2. The free space is becoming small.
+   3. There are many versions of a node.
+
+   The garbage collect should always be done in a manner that guarantees
+   that future garbage collects cannot be locked.  E.g. Rewritten chunks
+   should not be too large (span more than one sector in the flash memory
+   for exemple).  Of course there is a limit on how intelligent this garbage
+   collection can be.  */
+
+
+int
+jffs_garbage_collect_now(struct jffs_control *c)
+{
+	struct jffs_fmcontrol *fmc = c->fmc;
+	long erased = 0;
+	int result = 0;
+	D1(int i = 1);
+	D2(printk("***jffs_garbage_collect_now(): fmc->dirty_size = %u, fmc->free_size = 0x%x\n, fcs1=0x%x, fcs2=0x%x",
+		  fmc->dirty_size, fmc->free_size, jffs_free_size1(fmc), jffs_free_size2(fmc)));
+	D2(jffs_print_fmcontrol(fmc));
+
+	//	down(&fmc->gclock);
+
+	/* If it is possible to garbage collect, do so.  */
+	
+	while (erased == 0) {
+		D1(printk("***jffs_garbage_collect_now(): round #%u, "
+			  "fmc->dirty_size = %u\n", i++, fmc->dirty_size));
+		D2(jffs_print_fmcontrol(fmc));
+
+		if ((erased = jffs_try_to_erase(c)) < 0) {
+			printk(KERN_WARNING "JFFS: Error in "
+			       "garbage collector.\n");
+			result = erased;
+			goto gc_end;
+		}
+		if (erased)
+			break;
+		
+		if (fmc->free_size == 0) {
+			/* Argh */
+			printk(KERN_ERR "jffs_garbage_collect_now(): free_size == 0. This is BAD.\n");
+			result = -ENOSPC;
+			break;
+		}
+
+		if (fmc->dirty_size < fmc->sector_size) {
+			/* Actually, we _may_ have been able to free some, 
+			 * if there are many overlapping nodes which aren't
+			 * actually marked dirty because they still have
+			 * some valid data in each.
+			 */
+			result = -ENOSPC;
+			break;
+		}
+
+		/* Let's dare to make a garbage collect.  */
+		if ((result = jffs_garbage_collect_next(c)) < 0) {
+			printk(KERN_ERR "JFFS: Something "
+			       "has gone seriously wrong "
+			       "with a garbage collect.\n");
+			goto gc_end;
+		}
+
+		D1(printk("   jffs_garbage_collect_now(): erased: %ld\n", erased));
+		DJM(jffs_print_memory_allocation_statistics());
+	}
+	
+gc_end:
+	//	up(&fmc->gclock);
+
+	D3(printk("   jffs_garbage_collect_now(): Leaving...\n"));
+	D1(if (erased) {
+		printk("jffs_g_c_now(): erased = %ld\n", erased);
+		jffs_print_fmcontrol(fmc);
+	});
+
+	if (!erased && !result)
+		return -ENOSPC;
+
+	return result;
+} /* jffs_garbage_collect_now() */
+
+
+/* Determine if it is reasonable to start garbage collection.
+   We start a gc pass if either:
+   - The number of free bytes < MIN_FREE_BYTES && at least one
+     block is dirty, OR
+   - The number of dirty bytes > MAX_DIRTY_BYTES
+*/
+static inline int thread_should_wake (struct jffs_control *c)
+{
+	D1(printk (KERN_NOTICE "thread_should_wake(): free=%d, dirty=%d, blocksize=%d.\n",
+		   c->fmc->free_size, c->fmc->dirty_size, c->fmc->sector_size));
+
+	/* If there's not enough dirty space to free a block, there's no point. */
+	if (c->fmc->dirty_size < c->fmc->sector_size) {
+		D2(printk(KERN_NOTICE "thread_should_wake(): Not waking. Insufficient dirty space\n"));
+		return 0;
+	}
+#if 1
+	/* If there is too much RAM used by the various structures, GC */
+	if (jffs_get_node_inuse() > (c->fmc->used_size/c->fmc->max_chunk_size * 5 + jffs_get_file_count() * 2 + 50)) {
+		/* FIXME: Provide proof that this test can be satisfied. We
+		   don't want a filesystem doing endless GC just because this
+		   condition cannot ever be false.
+		*/
+		D2(printk(KERN_NOTICE "thread_should_wake(): Waking due to number of nodes\n"));
+		return 1;
+	}
+#endif
+	/* If there are fewer free bytes than the threshold, GC */
+	if (c->fmc->free_size < c->gc_minfree_threshold) {
+		D2(printk(KERN_NOTICE "thread_should_wake(): Waking due to insufficent free space\n"));
+		return 1;
+	}
+	/* If there are more dirty bytes than the threshold, GC */
+	if (c->fmc->dirty_size > c->gc_maxdirty_threshold) {
+		D2(printk(KERN_NOTICE "thread_should_wake(): Waking due to excessive dirty space\n"));
+		return 1;
+	}	
+	/* FIXME: What about the "There are many versions of a node" condition? */
+
+	return 0;
+}
+
+
+void jffs_garbage_collect_trigger(struct jffs_control *c)
+{
+	/* NOTE: We rely on the fact that we have the BKL here.
+	 * Otherwise, the gc_task could go away between the check
+	 * and the wake_up_process()
+	 */
+	if (c->gc_task && thread_should_wake(c))
+		send_sig(SIGHUP, c->gc_task, 1);
+}
+  
+
+/* Kernel threads  take (void *) as arguments.   Thus we pass
+   the jffs_control data as a (void *) and then cast it. */
+int
+jffs_garbage_collect_thread(void *ptr)
+{
+        struct jffs_control *c = (struct jffs_control *) ptr;
+	struct jffs_fmcontrol *fmc = c->fmc;
+	long erased;
+	int result = 0;
+	D1(int i = 1);
+
+	c->gc_task = current;
+
+	lock_kernel();
+	exit_mm(c->gc_task);
+
+	current->session = 1;
+	current->pgrp = 1;
+	init_completion(&c->gc_thread_comp); /* barrier */ 
+	spin_lock_irq(&current->sigmask_lock);
+	siginitsetinv (&current->blocked, sigmask(SIGHUP) | sigmask(SIGKILL) | sigmask(SIGSTOP) | sigmask(SIGCONT));
+	recalc_sigpending(current);
+	spin_unlock_irq(&current->sigmask_lock);
+	strcpy(current->comm, "jffs_gcd");
+
+	D1(printk (KERN_NOTICE "jffs_garbage_collect_thread(): Starting infinite loop.\n"));
+
+	for (;;) {
+
+		/* See if we need to start gc.  If we don't, go to sleep.
+		   
+		   Current implementation is a BAD THING(tm).  If we try 
+		   to unmount the FS, the unmount operation will sleep waiting
+		   for this thread to exit.  We need to arrange to send it a
+		   sig before the umount process sleeps.
+		*/
+
+		if (!thread_should_wake(c))
+			set_current_state (TASK_INTERRUPTIBLE);
+		
+		schedule(); /* Yes, we do this even if we want to go
+				       on immediately - we're a low priority 
+				       background task. */
+
+		/* Put_super will send a SIGKILL and then wait on the sem. 
+		 */
+		while (signal_pending(current)) {
+			siginfo_t info;
+			unsigned long signr;
+
+			spin_lock_irq(&current->sigmask_lock);
+			signr = dequeue_signal(&current->blocked, &info);
+			spin_unlock_irq(&current->sigmask_lock);
+
+			switch(signr) {
+			case SIGSTOP:
+				D1(printk("jffs_garbage_collect_thread(): SIGSTOP received.\n"));
+				set_current_state(TASK_STOPPED);
+				schedule();
+				break;
+
+			case SIGKILL:
+				D1(printk("jffs_garbage_collect_thread(): SIGKILL received.\n"));
+				c->gc_task = NULL;
+				complete_and_exit(&c->gc_thread_comp, 0);
+			}
+		}
+
+
+		D1(printk (KERN_NOTICE "jffs_garbage_collect_thread(): collecting.\n"));
+
+		D3(printk (KERN_NOTICE "g_c_thread(): down biglock\n"));
+		down(&fmc->biglock);
+		
+		D1(printk("***jffs_garbage_collect_thread(): round #%u, "
+			  "fmc->dirty_size = %u\n", i++, fmc->dirty_size));
+		D2(jffs_print_fmcontrol(fmc));
+
+		if ((erased = jffs_try_to_erase(c)) < 0) {
+			printk(KERN_WARNING "JFFS: Error in "
+			       "garbage collector: %ld.\n", erased);
+		}
+
+		if (erased)
+			goto gc_end;
+
+		if (fmc->free_size == 0) {
+			/* Argh. Might as well commit suicide. */
+			printk(KERN_ERR "jffs_garbage_collect_thread(): free_size == 0. This is BAD.\n");
+			send_sig(SIGQUIT, c->gc_task, 1);
+			// panic()
+			goto gc_end;
+		}
+		
+		/* Let's dare to make a garbage collect.  */
+		if ((result = jffs_garbage_collect_next(c)) < 0) {
+			printk(KERN_ERR "JFFS: Something "
+			       "has gone seriously wrong "
+			       "with a garbage collect: %d\n", result);
+		}
+		
+	gc_end:
+		D3(printk (KERN_NOTICE "g_c_thread(): up biglock\n"));
+		up(&fmc->biglock);
+	} /* for (;;) */
+} /* jffs_garbage_collect_thread() */
diff --git a/fs/jffs/intrep.h b/fs/jffs/intrep.h
new file mode 100644
index 00000000000000..53705880116792
--- /dev/null
+++ b/fs/jffs/intrep.h
@@ -0,0 +1,91 @@
+/*
+ * JFFS -- Journaling Flash File System, Linux implementation.
+ *
+ * Copyright (C) 1999, 2000  Axis Communications AB.
+ *
+ * Created by Finn Hakansson <finn@axis.com>.
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * $Id: intrep.h,v 1.14 2001/09/23 23:28:37 dwmw2 Exp $
+ *
+ */
+
+#ifndef __LINUX_JFFS_INTREP_H__
+#define __LINUX_JFFS_INTREP_H__
+#include "jffs_fm.h"
+struct jffs_node *jffs_alloc_node(void);
+void jffs_free_node(struct jffs_node *n);
+int jffs_get_node_inuse(void);
+long jffs_get_file_count(void);
+
+__u32 jffs_checksum(const void *data, int size);
+
+void jffs_cleanup_control(struct jffs_control *c);
+int jffs_build_fs(struct super_block *sb);
+
+int jffs_insert_node(struct jffs_control *c, struct jffs_file *f,
+		     const struct jffs_raw_inode *raw_inode,
+		     const char *name, struct jffs_node *node);
+struct jffs_file *jffs_find_file(struct jffs_control *c, __u32 ino);
+struct jffs_file *jffs_find_child(struct jffs_file *dir, const char *name, int len);
+
+void jffs_free_node(struct jffs_node *node);
+
+int jffs_foreach_file(struct jffs_control *c, int (*func)(struct jffs_file *));
+int jffs_free_node_list(struct jffs_file *f);
+int jffs_free_file(struct jffs_file *f);
+int jffs_possibly_delete_file(struct jffs_file *f);
+int jffs_build_file(struct jffs_file *f);
+int jffs_insert_file_into_hash(struct jffs_file *f);
+int jffs_insert_file_into_tree(struct jffs_file *f);
+int jffs_unlink_file_from_hash(struct jffs_file *f);
+int jffs_unlink_file_from_tree(struct jffs_file *f);
+int jffs_remove_redundant_nodes(struct jffs_file *f);
+int jffs_file_count(struct jffs_file *f);
+
+int jffs_write_node(struct jffs_control *c, struct jffs_node *node,
+		    struct jffs_raw_inode *raw_inode,
+		    const char *name, const unsigned char *buf,
+		    int recoverable, struct jffs_file *f);
+int jffs_read_data(struct jffs_file *f, unsigned char *buf, __u32 read_offset, __u32 size);
+
+/* Garbage collection stuff.  */
+int jffs_garbage_collect_thread(void *c);
+void jffs_garbage_collect_trigger(struct jffs_control *c);
+int jffs_garbage_collect_now(struct jffs_control *c);
+
+/* Is there enough space on the flash?  */
+static inline int JFFS_ENOUGH_SPACE(struct jffs_control *c, __u32 space)
+{
+	struct jffs_fmcontrol *fmc = c->fmc;
+
+	while (1) {
+		if ((fmc->flash_size - (fmc->used_size + fmc->dirty_size)) 
+			>= fmc->min_free_size + space) {
+			return 1;
+		}
+		if (fmc->dirty_size < fmc->sector_size)
+			return 0;
+
+		if (jffs_garbage_collect_now(c)) {
+		  D1(printk("JFFS_ENOUGH_SPACE: jffs_garbage_collect_now() failed.\n"));
+		  return 0;
+		}
+	}
+}
+
+/* For debugging purposes.  */
+void jffs_print_node(struct jffs_node *n);
+void jffs_print_raw_inode(struct jffs_raw_inode *raw_inode);
+int jffs_print_file(struct jffs_file *f);
+void jffs_print_hash_table(struct jffs_control *c);
+void jffs_print_tree(struct jffs_file *first_file, int indent);
+
+struct buffer_head *jffs_get_write_buffer(kdev_t dev, int block);
+void jffs_put_write_buffer(struct buffer_head *bh);
+
+#endif /* __LINUX_JFFS_INTREP_H__  */
diff --git a/fs/jffs/jffs_fm.c b/fs/jffs/jffs_fm.c
new file mode 100644
index 00000000000000..47655fd338c310
--- /dev/null
+++ b/fs/jffs/jffs_fm.c
@@ -0,0 +1,791 @@
+/*
+ * JFFS -- Journaling Flash File System, Linux implementation.
+ *
+ * Copyright (C) 1999, 2000  Axis Communications AB.
+ *
+ * Created by Finn Hakansson <finn@axis.com>.
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * $Id: jffs_fm.c,v 1.27 2001/09/20 12:29:47 dwmw2 Exp $
+ *
+ * Ported to Linux 2.3.x and MTD:
+ * Copyright (C) 2000  Alexander Larsson (alex@cendio.se), Cendio Systems AB
+ *
+ */
+#define __NO_VERSION__
+#include <linux/slab.h>
+#include <linux/blkdev.h>
+#include <linux/jffs.h>
+#include "jffs_fm.h"
+
+#if defined(JFFS_MARK_OBSOLETE) && JFFS_MARK_OBSOLETE
+static int jffs_mark_obsolete(struct jffs_fmcontrol *fmc, __u32 fm_offset);
+#endif
+
+extern kmem_cache_t     *fm_cache;
+extern kmem_cache_t     *node_cache;
+
+/* This function creates a new shiny flash memory control structure.  */
+struct jffs_fmcontrol *
+jffs_build_begin(struct jffs_control *c, kdev_t dev)
+{
+	struct jffs_fmcontrol *fmc;
+	struct mtd_info *mtd;
+	
+	D3(printk("jffs_build_begin()\n"));
+	fmc = (struct jffs_fmcontrol *)kmalloc(sizeof(struct jffs_fmcontrol),
+					       GFP_KERNEL);
+	if (!fmc) {
+		D(printk("jffs_build_begin(): Allocation of "
+			 "struct jffs_fmcontrol failed!\n"));
+		return (struct jffs_fmcontrol *)0;
+	}
+	DJM(no_jffs_fmcontrol++);
+
+	mtd = get_mtd_device(NULL, MINOR(dev));
+
+	if (!mtd) {
+		kfree(fmc);
+		DJM(no_jffs_fmcontrol--);
+		return NULL;
+	}
+	
+	/* Retrieve the size of the flash memory.  */
+	fmc->flash_size = mtd->size;
+	D3(printk("  fmc->flash_size = %d bytes\n", fmc->flash_size));
+
+	fmc->used_size = 0;
+	fmc->dirty_size = 0;
+	fmc->free_size = mtd->size;
+	fmc->sector_size = mtd->erasesize;
+	fmc->max_chunk_size = fmc->sector_size >> 1;
+	/* min_free_size:
+	   1 sector, obviously.
+	   + 1 x max_chunk_size, for when a nodes overlaps the end of a sector
+	   + 1 x max_chunk_size again, which ought to be enough to handle 
+		   the case where a rename causes a name to grow, and GC has
+		   to write out larger nodes than the ones it's obsoleting.
+		   We should fix it so it doesn't have to write the name
+		   _every_ time. Later.
+	   + another 2 sectors because people keep getting GC stuck and
+	           we don't know why. This scares me - I want formal proof
+		   of correctness of whatever number we put here. dwmw2.
+	*/
+	fmc->min_free_size = fmc->sector_size << 2;
+	fmc->mtd = mtd;
+	fmc->c = c;
+	fmc->head = 0;
+	fmc->tail = 0;
+	fmc->head_extra = 0;
+	fmc->tail_extra = 0;
+	init_MUTEX(&fmc->biglock);
+	return fmc;
+}
+
+
+/* When the flash memory scan has completed, this function should be called
+   before use of the control structure.  */
+void
+jffs_build_end(struct jffs_fmcontrol *fmc)
+{
+	D3(printk("jffs_build_end()\n"));
+
+	if (!fmc->head) {
+		fmc->head = fmc->head_extra;
+		fmc->tail = fmc->tail_extra;
+	}
+	else if (fmc->head_extra) {
+		fmc->tail_extra->next = fmc->head;
+		fmc->head->prev = fmc->tail_extra;
+		fmc->head = fmc->head_extra;
+	}
+	fmc->head_extra = 0; /* These two instructions should be omitted.  */
+	fmc->tail_extra = 0;
+	D3(jffs_print_fmcontrol(fmc));
+}
+
+
+/* Call this function when the file system is unmounted.  This function
+   frees all memory used by this module.  */
+void
+jffs_cleanup_fmcontrol(struct jffs_fmcontrol *fmc)
+{
+	if (fmc) {
+		struct jffs_fm *cur;
+		struct jffs_fm *next = fmc->head;
+
+		while ((cur = next)) {
+			next = next->next;
+			jffs_free_fm(cur);
+		}
+		put_mtd_device(fmc->mtd);
+		kfree(fmc);
+		DJM(no_jffs_fmcontrol--);
+	}
+}
+
+
+/* This function returns the size of the first chunk of free space on the
+   flash memory.  This function will return something nonzero if the flash
+   memory contains any free space.  */
+__u32
+jffs_free_size1(struct jffs_fmcontrol *fmc)
+{
+	__u32 head;
+	__u32 tail;
+	__u32 end = fmc->flash_size;
+
+	if (!fmc->head) {
+		/* There is nothing on the flash.  */
+		return fmc->flash_size;
+	}
+
+	/* Compute the beginning and ending of the contents of the flash.  */
+	head = fmc->head->offset;
+	tail = fmc->tail->offset + fmc->tail->size;
+	if (tail == end) {
+		tail = 0;
+	}
+	ASSERT(else if (tail > end) {
+		printk(KERN_WARNING "jffs_free_size1(): tail > end\n");
+		tail = 0;
+	});
+
+	if (head <= tail) {
+		return end - tail;
+	}
+	else {
+		return head - tail;
+	}
+}
+
+/* This function will return something nonzero in case there are two free
+   areas on the flash.  Like this:
+
+     +----------------+------------------+----------------+
+     |     FREE 1     |   USED / DIRTY   |     FREE 2     |
+     +----------------+------------------+----------------+
+       fmc->head -----^
+       fmc->tail ------------------------^
+
+   The value returned, will be the size of the first empty area on the
+   flash, in this case marked "FREE 1".  */
+__u32
+jffs_free_size2(struct jffs_fmcontrol *fmc)
+{
+	if (fmc->head) {
+		__u32 head = fmc->head->offset;
+		__u32 tail = fmc->tail->offset + fmc->tail->size;
+		if (tail == fmc->flash_size) {
+			tail = 0;
+		}
+
+		if (tail >= head) {
+			return head;
+		}
+	}
+	return 0;
+}
+
+
+/* Allocate a chunk of flash memory.  If there is enough space on the
+   device, a reference to the associated node is stored in the jffs_fm
+   struct.  */
+int
+jffs_fmalloc(struct jffs_fmcontrol *fmc, __u32 size, struct jffs_node *node,
+	     struct jffs_fm **result)
+{
+	struct jffs_fm *fm;
+	__u32 free_chunk_size1;
+	__u32 free_chunk_size2;
+
+	D2(printk("jffs_fmalloc(): fmc = 0x%p, size = %d, "
+		  "node = 0x%p\n", fmc, size, node));
+
+	*result = 0;
+
+	if (!(fm = jffs_alloc_fm())) {
+		D(printk("jffs_fmalloc(): kmalloc() failed! (fm)\n"));
+		return -ENOMEM;
+	}
+
+	free_chunk_size1 = jffs_free_size1(fmc);
+	free_chunk_size2 = jffs_free_size2(fmc);
+	if (free_chunk_size1 + free_chunk_size2 != fmc->free_size) {
+		printk(KERN_WARNING "Free size accounting screwed\n");
+		printk(KERN_WARNING "free_chunk_size1 == 0x%x, free_chunk_size2 == 0x%x, fmc->free_size == 0x%x\n", free_chunk_size1, free_chunk_size2, fmc->free_size);
+	}
+
+	D3(printk("jffs_fmalloc(): free_chunk_size1 = %u, "
+		  "free_chunk_size2 = %u\n",
+		  free_chunk_size1, free_chunk_size2));
+
+	if (size <= free_chunk_size1) {
+		if (!(fm->nodes = (struct jffs_node_ref *)
+				  kmalloc(sizeof(struct jffs_node_ref),
+					  GFP_KERNEL))) {
+			D(printk("jffs_fmalloc(): kmalloc() failed! "
+				 "(node_ref)\n"));
+			jffs_free_fm(fm);
+			return -ENOMEM;
+		}
+		DJM(no_jffs_node_ref++);
+		fm->nodes->node = node;
+		fm->nodes->next = 0;
+		if (fmc->tail) {
+			fm->offset = fmc->tail->offset + fmc->tail->size;
+			if (fm->offset == fmc->flash_size) {
+				fm->offset = 0;
+			}
+			ASSERT(else if (fm->offset > fmc->flash_size) {
+				printk(KERN_WARNING "jffs_fmalloc(): "
+				       "offset > flash_end\n");
+				fm->offset = 0;
+			});
+		}
+		else {
+			/* There don't have to be files in the file
+			   system yet.  */
+			fm->offset = 0;
+		}
+		fm->size = size;
+		fmc->free_size -= size;
+		fmc->used_size += size;
+	}
+	else if (size > free_chunk_size2) {
+		printk(KERN_WARNING "JFFS: Tried to allocate a too "
+		       "large flash memory chunk. (size = %u)\n", size);
+		jffs_free_fm(fm);
+		return -ENOSPC;
+	}
+	else {
+		fm->offset = fmc->tail->offset + fmc->tail->size;
+		fm->size = free_chunk_size1;
+		fm->nodes = 0;
+		fmc->free_size -= fm->size;
+		fmc->dirty_size += fm->size; /* Changed by simonk. This seemingly fixes a 
+						bug that caused infinite garbage collection.
+						It previously set fmc->dirty_size to size (which is the
+						size of the requested chunk).
+					     */
+	}
+
+	fm->next = 0;
+	if (!fmc->head) {
+		fm->prev = 0;
+		fmc->head = fm;
+		fmc->tail = fm;
+	}
+	else {
+		fm->prev = fmc->tail;
+		fmc->tail->next = fm;
+		fmc->tail = fm;
+	}
+
+	D3(jffs_print_fmcontrol(fmc));
+	D3(jffs_print_fm(fm));
+	*result = fm;
+	return 0;
+}
+
+
+/* The on-flash space is not needed anymore by the passed node.  Remove
+   the reference to the node from the node list.  If the data chunk in
+   the flash memory isn't used by any more nodes anymore (fm->nodes == 0),
+   then mark that chunk as dirty.  */
+int
+jffs_fmfree(struct jffs_fmcontrol *fmc, struct jffs_fm *fm, struct jffs_node *node)
+{
+	struct jffs_node_ref *ref;
+	struct jffs_node_ref *prev;
+	ASSERT(int del = 0);
+
+	D2(printk("jffs_fmfree(): node->ino = %u, node->version = %u\n",
+		 node->ino, node->version));
+
+	ASSERT(if (!fmc || !fm || !fm->nodes) {
+		printk(KERN_ERR "jffs_fmfree(): fmc: 0x%p, fm: 0x%p, "
+		       "fm->nodes: 0x%p\n",
+		       fmc, fm, (fm ? fm->nodes : 0));
+		return -1;
+	});
+
+	/* Find the reference to the node that is going to be removed
+	   and remove it.  */
+	for (ref = fm->nodes, prev = 0; ref; ref = ref->next) {
+		if (ref->node == node) {
+			if (prev) {
+				prev->next = ref->next;
+			}
+			else {
+				fm->nodes = ref->next;
+			}
+			kfree(ref);
+			DJM(no_jffs_node_ref--);
+			ASSERT(del = 1);
+			break;
+		}
+		prev = ref;
+	}
+
+	/* If the data chunk in the flash memory isn't used anymore
+	   just mark it as obsolete.  */
+	if (!fm->nodes) {
+		/* No node uses this chunk so let's remove it.  */
+		fmc->used_size -= fm->size;
+		fmc->dirty_size += fm->size;
+#if defined(JFFS_MARK_OBSOLETE) && JFFS_MARK_OBSOLETE
+		if (jffs_mark_obsolete(fmc, fm->offset) < 0) {
+			D1(printk("jffs_fmfree(): Failed to mark an on-flash "
+				  "node obsolete!\n"));
+			return -1;
+		}
+#endif
+	}
+
+	ASSERT(if (!del) {
+		printk(KERN_WARNING "***jffs_fmfree(): "
+		       "Didn't delete any node reference!\n");
+	});
+
+	return 0;
+}
+
+
+/* This allocation function is used during the initialization of
+   the file system.  */
+struct jffs_fm *
+jffs_fmalloced(struct jffs_fmcontrol *fmc, __u32 offset, __u32 size,
+	       struct jffs_node *node)
+{
+	struct jffs_fm *fm;
+
+	D3(printk("jffs_fmalloced()\n"));
+
+	if (!(fm = jffs_alloc_fm())) {
+		D(printk("jffs_fmalloced(0x%p, %u, %u, 0x%p): failed!\n",
+			 fmc, offset, size, node));
+		return 0;
+	}
+	fm->offset = offset;
+	fm->size = size;
+	fm->prev = 0;
+	fm->next = 0;
+	fm->nodes = 0;
+	if (node) {
+		/* `node' exists and it should be associated with the
+		    jffs_fm structure `fm'.  */
+		if (!(fm->nodes = (struct jffs_node_ref *)
+				  kmalloc(sizeof(struct jffs_node_ref),
+					  GFP_KERNEL))) {
+			D(printk("jffs_fmalloced(): !fm->nodes\n"));
+			jffs_free_fm(fm);
+			return 0;
+		}
+		DJM(no_jffs_node_ref++);
+		fm->nodes->node = node;
+		fm->nodes->next = 0;
+		fmc->used_size += size;
+		fmc->free_size -= size;
+	}
+	else {
+		/* If there is no node, then this is just a chunk of dirt.  */
+		fmc->dirty_size += size;
+		fmc->free_size -= size;
+	}
+
+	if (fmc->head_extra) {
+		fm->prev = fmc->tail_extra;
+		fmc->tail_extra->next = fm;
+		fmc->tail_extra = fm;
+	}
+	else if (!fmc->head) {
+		fmc->head = fm;
+		fmc->tail = fm;
+	}
+	else if (fmc->tail->offset + fmc->tail->size < offset) {
+		fmc->head_extra = fm;
+		fmc->tail_extra = fm;
+	}
+	else {
+		fm->prev = fmc->tail;
+		fmc->tail->next = fm;
+		fmc->tail = fm;
+	}
+	D3(jffs_print_fmcontrol(fmc));
+	D3(jffs_print_fm(fm));
+	return fm;
+}
+
+
+/* Add a new node to an already existing jffs_fm struct.  */
+int
+jffs_add_node(struct jffs_node *node)
+{
+	struct jffs_node_ref *ref;
+
+	D3(printk("jffs_add_node(): ino = %u\n", node->ino));
+
+	ref = (struct jffs_node_ref *)kmalloc(sizeof(struct jffs_node_ref),
+					      GFP_KERNEL);
+	if (!ref)
+		return -ENOMEM;
+
+	DJM(no_jffs_node_ref++);
+	ref->node = node;
+	ref->next = node->fm->nodes;
+	node->fm->nodes = ref;
+	return 0;
+}
+
+
+/* Free a part of some allocated space.  */
+void
+jffs_fmfree_partly(struct jffs_fmcontrol *fmc, struct jffs_fm *fm, __u32 size)
+{
+	D1(printk("***jffs_fmfree_partly(): fm = 0x%p, fm->nodes = 0x%p, "
+		  "fm->nodes->node->ino = %u, size = %u\n",
+		  fm, (fm ? fm->nodes : 0),
+		  (!fm ? 0 : (!fm->nodes ? 0 : fm->nodes->node->ino)), size));
+
+	if (fm->nodes) {
+		kfree(fm->nodes);
+		DJM(no_jffs_node_ref--);
+		fm->nodes = 0;
+	}
+	fmc->used_size -= fm->size;
+	if (fm == fmc->tail) {
+		fm->size -= size;
+		fmc->free_size += size;
+	}
+	fmc->dirty_size += fm->size;
+}
+
+
+/* Find the jffs_fm struct that contains the end of the data chunk that
+   begins at the logical beginning of the flash memory and spans `size'
+   bytes.  If we want to erase a sector of the flash memory, we use this
+   function to find where the sector limit cuts a chunk of data.  */
+struct jffs_fm *
+jffs_cut_node(struct jffs_fmcontrol *fmc, __u32 size)
+{
+	struct jffs_fm *fm;
+	__u32 pos = 0;
+
+	if (size == 0) {
+		return 0;
+	}
+
+	ASSERT(if (!fmc) {
+		printk(KERN_ERR "jffs_cut_node(): fmc == NULL\n");
+		return 0;
+	});
+
+	fm = fmc->head;
+
+	while (fm) {
+		pos += fm->size;
+		if (pos < size) {
+			fm = fm->next;
+		}
+		else if (pos > size) {
+			break;
+		}
+		else {
+			fm = 0;
+			break;
+		}
+	}
+
+	return fm;
+}
+
+
+/* Move the head of the fmc structures and delete the obsolete parts.  */
+void
+jffs_sync_erase(struct jffs_fmcontrol *fmc, int erased_size)
+{
+	struct jffs_fm *fm;
+	struct jffs_fm *del;
+
+	ASSERT(if (!fmc) {
+		printk(KERN_ERR "jffs_sync_erase(): fmc == NULL\n");
+		return;
+	});
+
+	fmc->dirty_size -= erased_size;
+	fmc->free_size += erased_size;
+
+	for (fm = fmc->head; fm && (erased_size > 0);) {
+		if (erased_size >= fm->size) {
+			erased_size -= fm->size;
+			del = fm;
+			fm = fm->next;
+			fm->prev = 0;
+			fmc->head = fm;
+			jffs_free_fm(del);
+		}
+		else {
+			fm->size -= erased_size;
+			fm->offset += erased_size;
+			break;
+		}
+	}
+}
+
+
+/* Return the oldest used node in the flash memory.  */
+struct jffs_node *
+jffs_get_oldest_node(struct jffs_fmcontrol *fmc)
+{
+	struct jffs_fm *fm;
+	struct jffs_node_ref *nref;
+	struct jffs_node *node = 0;
+
+	ASSERT(if (!fmc) {
+		printk(KERN_ERR "jffs_get_oldest_node(): fmc == NULL\n");
+		return 0;
+	});
+
+	for (fm = fmc->head; fm && !fm->nodes; fm = fm->next);
+
+	if (!fm) {
+		return 0;
+	}
+
+	/* The oldest node is the last one in the reference list.  This list
+	   shouldn't be too long; just one or perhaps two elements.  */
+	for (nref = fm->nodes; nref; nref = nref->next) {
+		node = nref->node;
+	}
+
+	D2(printk("jffs_get_oldest_node(): ino = %u, version = %u\n",
+		  (node ? node->ino : 0), (node ? node->version : 0)));
+
+	return node;
+}
+
+
+#if defined(JFFS_MARK_OBSOLETE) && JFFS_MARK_OBSOLETE
+
+/* Mark an on-flash node as obsolete.
+
+   Note that this is just an optimization that isn't necessary for the
+   filesystem to work.  */
+
+static int
+jffs_mark_obsolete(struct jffs_fmcontrol *fmc, __u32 fm_offset)
+{
+	/* The `accurate_pos' holds the position of the accurate byte
+	   in the jffs_raw_inode structure that we are going to mark
+	   as obsolete.  */
+	__u32 accurate_pos = fm_offset + JFFS_RAW_INODE_ACCURATE_OFFSET;
+	unsigned char zero = 0x00;
+	size_t len;
+
+	D3(printk("jffs_mark_obsolete(): accurate_pos = %u\n", accurate_pos));
+	ASSERT(if (!fmc) {
+		printk(KERN_ERR "jffs_mark_obsolete(): fmc == NULL\n");
+		return -1;
+	});
+
+	/* Write 0x00 to the raw inode's accurate member.  Don't care
+	   about the return value.  */
+	MTD_WRITE(fmc->mtd, accurate_pos, 1, &len, &zero);
+	return 0;
+}
+
+#endif /* JFFS_MARK_OBSOLETE  */
+
+/* check if it's possible to erase the wanted range, and if not, return
+ * the range that IS erasable, or a negative error code.
+ */
+long
+jffs_flash_erasable_size(struct mtd_info *mtd, __u32 offset, __u32 size)
+{
+         u_long ssize;
+
+	/* assume that sector size for a partition is constant even
+	 * if it spans more than one chip (you usually put the same
+	 * type of chips in a system)
+	 */
+
+        ssize = mtd->erasesize;
+
+	if (offset % ssize) {
+		printk(KERN_WARNING "jffs_flash_erasable_size() given non-aligned offset %x (erasesize %lx)\n", offset, ssize);
+		/* The offset is not sector size aligned.  */
+		return -1;
+	}
+	else if (offset > mtd->size) {
+		printk(KERN_WARNING "jffs_flash_erasable_size given offset off the end of device (%x > %x)\n", offset, mtd->size);
+		return -2;
+	}
+	else if (offset + size > mtd->size) {
+		printk(KERN_WARNING "jffs_flash_erasable_size() given length which runs off the end of device (ofs %x + len %x = %x, > %x)\n", offset,size, offset+size, mtd->size);
+		return -3;
+	}
+
+	return (size / ssize) * ssize;
+}
+
+
+/* How much dirty flash memory is possible to erase at the moment?  */
+long
+jffs_erasable_size(struct jffs_fmcontrol *fmc)
+{
+	struct jffs_fm *fm;
+	__u32 size = 0;
+	long ret;
+
+	ASSERT(if (!fmc) {
+		printk(KERN_ERR "jffs_erasable_size(): fmc = NULL\n");
+		return -1;
+	});
+
+	if (!fmc->head) {
+		/* The flash memory is totally empty. No nodes. No dirt.
+		   Just return.  */
+		return 0;
+	}
+
+	/* Calculate how much space that is dirty.  */
+	for (fm = fmc->head; fm && !fm->nodes; fm = fm->next) {
+		if (size && fm->offset == 0) {
+			/* We have reached the beginning of the flash.  */
+			break;
+		}
+		size += fm->size;
+	}
+
+	/* Someone's signature contained this:
+	   There's a fine line between fishing and just standing on
+	   the shore like an idiot...  */
+	ret = jffs_flash_erasable_size(fmc->mtd, fmc->head->offset, size);
+
+	ASSERT(if (ret < 0) {
+		printk("jffs_erasable_size: flash_erasable_size() "
+		       "returned something less than zero (%ld).\n", ret);
+		printk("jffs_erasable_size: offset = 0x%08x\n",
+		       fmc->head->offset);
+	});
+
+	/* If there is dirt on the flash (which is the reason to why
+	   this function was called in the first place) but no space is
+	   possible to erase right now, the initial part of the list of
+	   jffs_fm structs, that hold place for dirty space, could perhaps
+	   be shortened.  The list's initial "dirty" elements are merged
+	   into just one large dirty jffs_fm struct.  This operation must
+	   only be performed if nothing is possible to erase.  Otherwise,
+	   jffs_clear_end_of_node() won't work as expected.  */
+	if (ret == 0) {
+		struct jffs_fm *head = fmc->head;
+		struct jffs_fm *del;
+		/* While there are two dirty nodes beside each other.*/
+		while (head->nodes == 0
+		       && head->next
+		       && head->next->nodes == 0) {
+			del = head->next;
+			head->size += del->size;
+			head->next = del->next;
+			if (del->next) {
+				del->next->prev = head;
+			}
+			jffs_free_fm(del);
+		}
+	}
+
+	return (ret >= 0 ? ret : 0);
+}
+
+struct jffs_fm *jffs_alloc_fm(void)
+{
+	struct jffs_fm *fm;
+
+	fm = kmem_cache_alloc(fm_cache,GFP_KERNEL);
+	DJM(if (fm) no_jffs_fm++;);
+	
+	return fm;
+}
+
+void jffs_free_fm(struct jffs_fm *n)
+{
+	kmem_cache_free(fm_cache,n);
+	DJM(no_jffs_fm--);
+}
+
+
+
+struct jffs_node *jffs_alloc_node(void)
+{
+	struct jffs_node *n;
+
+	n = (struct jffs_node *)kmem_cache_alloc(node_cache,GFP_KERNEL);
+	if(n != NULL)
+		no_jffs_node++;
+	return n;
+}
+
+void jffs_free_node(struct jffs_node *n)
+{
+	kmem_cache_free(node_cache,n);
+	no_jffs_node--;
+}
+
+
+int jffs_get_node_inuse(void)
+{
+	return no_jffs_node;
+}
+
+void
+jffs_print_fmcontrol(struct jffs_fmcontrol *fmc)
+{
+	D(printk("struct jffs_fmcontrol: 0x%p\n", fmc));
+	D(printk("{\n"));
+	D(printk("        %u, /* flash_size  */\n", fmc->flash_size));
+	D(printk("        %u, /* used_size  */\n", fmc->used_size));
+	D(printk("        %u, /* dirty_size  */\n", fmc->dirty_size));
+	D(printk("        %u, /* free_size  */\n", fmc->free_size));
+	D(printk("        %u, /* sector_size  */\n", fmc->sector_size));
+	D(printk("        %u, /* min_free_size  */\n", fmc->min_free_size));
+	D(printk("        %u, /* max_chunk_size  */\n", fmc->max_chunk_size));
+	D(printk("        0x%p, /* mtd  */\n", fmc->mtd));
+	D(printk("        0x%p, /* head  */    "
+		 "(head->offset = 0x%08x)\n",
+		 fmc->head, (fmc->head ? fmc->head->offset : 0)));
+	D(printk("        0x%p, /* tail  */    "
+		 "(tail->offset + tail->size = 0x%08x)\n",
+		 fmc->tail,
+		 (fmc->tail ? fmc->tail->offset + fmc->tail->size : 0)));
+	D(printk("        0x%p, /* head_extra  */\n", fmc->head_extra));
+	D(printk("        0x%p, /* tail_extra  */\n", fmc->tail_extra));
+	D(printk("}\n"));
+}
+
+void
+jffs_print_fm(struct jffs_fm *fm)
+{
+	D(printk("struct jffs_fm: 0x%p\n", fm));
+	D(printk("{\n"));
+	D(printk("       0x%08x, /* offset  */\n", fm->offset));
+	D(printk("       %u, /* size  */\n", fm->size));
+	D(printk("       0x%p, /* prev  */\n", fm->prev));
+	D(printk("       0x%p, /* next  */\n", fm->next));
+	D(printk("       0x%p, /* nodes  */\n", fm->nodes));
+	D(printk("}\n"));
+}
+
+void
+jffs_print_node_ref(struct jffs_node_ref *ref)
+{
+	D(printk("struct jffs_node_ref: 0x%p\n", ref));
+	D(printk("{\n"));
+	D(printk("       0x%p, /* node  */\n", ref->node));
+	D(printk("       0x%p, /* next  */\n", ref->next));
+	D(printk("}\n"));
+}
diff --git a/fs/jffs/jffs_fm.h b/fs/jffs/jffs_fm.h
new file mode 100644
index 00000000000000..4aea0554e6c728
--- /dev/null
+++ b/fs/jffs/jffs_fm.h
@@ -0,0 +1,150 @@
+/*
+ * JFFS -- Journaling Flash File System, Linux implementation.
+ *
+ * Copyright (C) 1999, 2000  Axis Communications AB.
+ *
+ * Created by Finn Hakansson <finn@axis.com>.
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * $Id: jffs_fm.h,v 1.13 2001/01/11 12:03:25 dwmw2 Exp $
+ *
+ * Ported to Linux 2.3.x and MTD:
+ * Copyright (C) 2000  Alexander Larsson (alex@cendio.se), Cendio Systems AB
+ *
+ */
+
+#ifndef __LINUX_JFFS_FM_H__
+#define __LINUX_JFFS_FM_H__
+
+#include <linux/types.h>
+#include <linux/jffs.h>
+#include <linux/mtd/mtd.h>
+#include <linux/config.h>
+
+/* The alignment between two nodes in the flash memory.  */
+#define JFFS_ALIGN_SIZE 4
+
+/* Mark the on-flash space as obsolete when appropriate.  */
+#define JFFS_MARK_OBSOLETE 0
+
+#ifndef CONFIG_JFFS_FS_VERBOSE
+#define CONFIG_JFFS_FS_VERBOSE 1
+#endif
+
+#if CONFIG_JFFS_FS_VERBOSE > 0
+#define D(x) x
+#define D1(x) D(x)
+#else
+#define D(x)
+#define D1(x)
+#endif
+
+#if CONFIG_JFFS_FS_VERBOSE > 1
+#define D2(x) D(x)
+#else
+#define D2(x)
+#endif
+
+#if CONFIG_JFFS_FS_VERBOSE > 2
+#define D3(x) D(x)
+#else
+#define D3(x)
+#endif
+
+#define ASSERT(x) x
+
+/* How many padding bytes should be inserted between two chunks of data
+   on the flash?  */
+#define JFFS_GET_PAD_BYTES(size) ( (JFFS_ALIGN_SIZE-1) & -(__u32)(size) )
+#define JFFS_PAD(size) ( (size + (JFFS_ALIGN_SIZE-1)) & ~(JFFS_ALIGN_SIZE-1) )
+
+
+
+void jffs_free_fm(struct jffs_fm *n);
+struct jffs_fm *jffs_alloc_fm(void);
+
+
+struct jffs_node_ref
+{
+	struct jffs_node *node;
+	struct jffs_node_ref *next;
+};
+
+
+/* The struct jffs_fm represents a chunk of data in the flash memory.  */
+struct jffs_fm
+{
+	__u32 offset;
+	__u32 size;
+	struct jffs_fm *prev;
+	struct jffs_fm *next;
+	struct jffs_node_ref *nodes; /* USED if != 0.  */
+};
+
+struct jffs_fmcontrol
+{
+	__u32 flash_size;
+	__u32 used_size;
+	__u32 dirty_size;
+	__u32 free_size;
+	__u32 sector_size;
+	__u32 min_free_size;  /* The minimum free space needed to be able
+				 to perform garbage collections.  */
+	__u32 max_chunk_size; /* The maximum size of a chunk of data.  */
+	struct mtd_info *mtd;
+	struct jffs_control *c;
+	struct jffs_fm *head;
+	struct jffs_fm *tail;
+	struct jffs_fm *head_extra;
+	struct jffs_fm *tail_extra;
+	struct semaphore biglock;
+};
+
+/* Notice the two members head_extra and tail_extra in the jffs_control
+   structure above. Those are only used during the scanning of the flash
+   memory; while the file system is being built. If the data in the flash
+   memory is organized like
+
+      +----------------+------------------+----------------+
+      |  USED / DIRTY  |       FREE       |  USED / DIRTY  |
+      +----------------+------------------+----------------+
+
+   then the scan is split in two parts. The first scanned part of the
+   flash memory is organized through the members head and tail. The
+   second scanned part is organized with head_extra and tail_extra. When
+   the scan is completed, the two lists are merged together. The jffs_fm
+   struct that head_extra references is the logical beginning of the
+   flash memory so it will be referenced by the head member.  */
+
+
+
+struct jffs_fmcontrol *jffs_build_begin(struct jffs_control *c, kdev_t dev);
+void jffs_build_end(struct jffs_fmcontrol *fmc);
+void jffs_cleanup_fmcontrol(struct jffs_fmcontrol *fmc);
+
+int jffs_fmalloc(struct jffs_fmcontrol *fmc, __u32 size,
+		 struct jffs_node *node, struct jffs_fm **result);
+int jffs_fmfree(struct jffs_fmcontrol *fmc, struct jffs_fm *fm,
+		struct jffs_node *node);
+
+__u32 jffs_free_size1(struct jffs_fmcontrol *fmc);
+__u32 jffs_free_size2(struct jffs_fmcontrol *fmc);
+void jffs_sync_erase(struct jffs_fmcontrol *fmc, int erased_size);
+struct jffs_fm *jffs_cut_node(struct jffs_fmcontrol *fmc, __u32 size);
+struct jffs_node *jffs_get_oldest_node(struct jffs_fmcontrol *fmc);
+long jffs_erasable_size(struct jffs_fmcontrol *fmc);
+struct jffs_fm *jffs_fmalloced(struct jffs_fmcontrol *fmc, __u32 offset,
+			       __u32 size, struct jffs_node *node);
+int jffs_add_node(struct jffs_node *node);
+void jffs_fmfree_partly(struct jffs_fmcontrol *fmc, struct jffs_fm *fm,
+			__u32 size);
+
+void jffs_print_fmcontrol(struct jffs_fmcontrol *fmc);
+void jffs_print_fm(struct jffs_fm *fm);
+void jffs_print_node_ref(struct jffs_node_ref *ref);
+
+#endif /* __LINUX_JFFS_FM_H__  */
diff --git a/fs/jffs/jffs_proc.c b/fs/jffs/jffs_proc.c
new file mode 100644
index 00000000000000..22107954fb0f7d
--- /dev/null
+++ b/fs/jffs/jffs_proc.c
@@ -0,0 +1,269 @@
+/*
+ * JFFS -- Journaling Flash File System, Linux implementation.
+ *
+ * Copyright (C) 2000  Axis Communications AB.
+ *
+ * Created by Simon Kagstrom <simonk@axis.com>.
+ *
+ * $Id: jffs_proc.c,v 1.5 2001/06/02 14:34:55 dwmw2 Exp $
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ *  Overview:
+ *   This file defines JFFS partition entries in the proc file system.
+ *
+ *  TODO:
+ *   Create some more proc files for different kinds of info, i.e. statistics
+ *   about written and read bytes, number of calls to different routines,
+ *   reports about failures.
+ */
+
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/jffs.h>
+#include <linux/slab.h>
+#include <linux/proc_fs.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include "jffs_fm.h"
+#include "jffs_proc.h"
+
+/*
+ * Structure for a JFFS partition in the system
+ */
+struct jffs_partition_dir {
+	struct jffs_control *c;
+	struct proc_dir_entry *part_root;
+	struct proc_dir_entry *part_info;
+	struct proc_dir_entry *part_layout;
+	struct jffs_partition_dir *next;
+};
+
+/*
+ * Structure for top-level entry in '/proc/fs' directory
+ */
+struct proc_dir_entry *jffs_proc_root;
+
+/*
+ * Linked list of 'jffs_partition_dirs' to help us track
+ * the mounted JFFS partitions in the system
+ */
+static struct jffs_partition_dir *jffs_part_dirs = 0;
+
+/*
+ * Read functions for entries
+ */
+static int jffs_proc_info_read(char *page, char **start, off_t off,
+		int count, int *eof, void *data);
+static int jffs_proc_layout_read (char *page, char **start, off_t off,
+		int count, int *eof, void *data);
+
+
+/*
+ * Register a JFFS partition directory (called upon mount)
+ */
+int jffs_register_jffs_proc_dir(kdev_t dev, struct jffs_control *c)
+{
+	struct jffs_partition_dir *part_dir;
+	struct proc_dir_entry *part_info = 0;
+	struct proc_dir_entry *part_layout = 0;
+	struct proc_dir_entry *part_root = 0;
+
+	/* Allocate structure for local JFFS partition table */
+	if (!(part_dir = (struct jffs_partition_dir *)
+		kmalloc (sizeof (struct jffs_partition_dir), GFP_KERNEL))) {
+		return -ENOMEM;
+	}
+
+	/* Create entry for this partition */
+	if ((part_root = create_proc_entry (kdevname(dev),
+		S_IFDIR | S_IRUGO | S_IXUGO, jffs_proc_root))) {
+		part_root->read_proc = jffs_proc_info_read;
+		part_root->data = (void *) c;
+	}
+	else {
+		kfree (part_dir);
+		return -ENOMEM;
+	}
+
+	/* Create entry for 'info' file */
+	if ((part_info = create_proc_entry ("info", 0, part_root))) {
+		part_info->read_proc = jffs_proc_info_read;
+		part_info->data = (void *) c;
+	}
+	else {
+		remove_proc_entry (part_root->name, jffs_proc_root);
+		kfree (part_dir);
+		return -ENOMEM;
+	}
+
+	/* Create entry for 'layout' file */
+	if ((part_layout = create_proc_entry ("layout", 0, part_root))) {
+		part_layout->read_proc = jffs_proc_layout_read;
+		part_layout->data = (void *) c;
+	}
+	else {
+		remove_proc_entry (part_info->name, part_root);
+		remove_proc_entry (part_root->name, jffs_proc_root);
+		kfree (part_dir);
+		return -ENOMEM;
+	}
+
+	/* Fill in structure for table and insert in the list */
+	part_dir->c = c;
+	part_dir->part_root = part_root;
+	part_dir->part_info = part_info;
+	part_dir->part_layout = part_layout;
+	part_dir->next = jffs_part_dirs;
+	jffs_part_dirs = part_dir;
+
+	/* Return happy */
+	return 0;
+}
+
+
+/*
+ * Unregister a JFFS partition directory (called at umount)
+ */
+int jffs_unregister_jffs_proc_dir(struct jffs_control *c)
+{
+	struct jffs_partition_dir *part_dir = jffs_part_dirs;
+	struct jffs_partition_dir *prev_part_dir = 0;
+
+	while (part_dir) {
+		if (part_dir->c == c) {
+			/* Remove entries for partition */
+			remove_proc_entry (part_dir->part_info->name,
+				part_dir->part_root);
+			remove_proc_entry (part_dir->part_layout->name,
+				part_dir->part_root);
+			remove_proc_entry (part_dir->part_root->name,
+				jffs_proc_root);
+
+			/* Remove entry from list */
+			if (prev_part_dir)
+				prev_part_dir->next = part_dir->next;
+			else
+				jffs_part_dirs = part_dir->next;
+
+			/*
+			 * Check to see if this is the last one
+			 * and remove the entry from '/proc/fs'
+			 * if it is.
+			 */
+			if (jffs_part_dirs == part_dir->next)
+#if LINUX_VERSION_CODE < 0x020300
+				remove_proc_entry ("jffs", &proc_root_fs);
+#else
+				remove_proc_entry ("jffs", proc_root_fs);
+#endif
+
+			/* Free memory for entry */
+			kfree(part_dir);
+
+			/* Return happy */
+			return 0;
+		}
+
+		/* Move to next entry */
+		prev_part_dir = part_dir;
+		part_dir = part_dir->next;
+	}
+
+	/* Return unhappy */
+	return -1;
+}
+
+
+/*
+ * Read a JFFS partition's `info' file
+ */
+static int jffs_proc_info_read (char *page, char **start, off_t off,
+		int count, int *eof, void *data)
+{
+	struct jffs_control *c = (struct jffs_control *) data;
+	int len = 0;
+
+	/* Get information on the parition */
+	len += sprintf (page,
+		"partition size:     %08lX (%u)\n"
+		"sector size:        %08lX (%u)\n"
+		"used size:          %08lX (%u)\n"
+		"dirty size:         %08lX (%u)\n"
+		"free size:          %08lX (%u)\n\n",
+		(unsigned long) c->fmc->flash_size, c->fmc->flash_size,
+		(unsigned long) c->fmc->sector_size, c->fmc->sector_size,
+		(unsigned long) c->fmc->used_size, c->fmc->used_size,
+		(unsigned long) c->fmc->dirty_size, c->fmc->dirty_size,
+		(unsigned long) (c->fmc->flash_size -
+			(c->fmc->used_size + c->fmc->dirty_size)),
+		c->fmc->flash_size - (c->fmc->used_size + c->fmc->dirty_size));
+
+	/* We're done */
+	*eof = 1;
+
+	/* Return length */
+	return len;
+}
+
+
+/*
+ * Read a JFFS partition's `layout' file
+ */
+static int jffs_proc_layout_read (char *page, char **start, off_t off,
+		int count, int *eof, void *data)
+{
+	struct jffs_control *c = (struct jffs_control *) data;
+	struct jffs_fm *fm = 0;
+	struct jffs_fm *last_fm = 0;
+	int len = 0;
+
+	/* Get the first item in the list */
+ 	fm = c->fmc->head;
+
+	/* Print free space */
+	if (fm && fm->offset) {
+		len += sprintf (page, "00000000 %08lX free\n",
+			(unsigned long) fm->offset);
+	}
+
+	/* Loop through all of the flash control structures */
+	while (fm && (len < (off + count))) {
+		if (fm->nodes) {
+			len += sprintf (page + len,
+				"%08lX %08lX ino=%08lX, ver=%08lX\n",
+				(unsigned long) fm->offset,
+				(unsigned long) fm->size,
+				(unsigned long) fm->nodes->node->ino,
+				(unsigned long) fm->nodes->node->version);
+		}
+		else {
+			len += sprintf (page + len,
+				"%08lX %08lX dirty\n",
+				(unsigned long) fm->offset,
+				(unsigned long) fm->size);
+		}
+		last_fm = fm;
+		fm = fm->next;
+	}
+
+	/* Print free space */
+	if ((len < (off + count)) && last_fm
+	    && (last_fm->offset < c->fmc->flash_size)) {
+		len += sprintf (page + len,
+			       "%08lX %08lX free\n",
+			       (unsigned long) last_fm->offset + 
+				last_fm->size,
+			       (unsigned long) (c->fmc->flash_size -
+						    (last_fm->offset + last_fm->size)));
+	}
+
+	/* We're done */
+	*eof = 1;
+
+	/* Return length */
+	return len;
+}
diff --git a/fs/jffs/jffs_proc.h b/fs/jffs/jffs_proc.h
new file mode 100644
index 00000000000000..bf36c9d68cf679
--- /dev/null
+++ b/fs/jffs/jffs_proc.h
@@ -0,0 +1,28 @@
+/*
+ * JFFS -- Journaling Flash File System, Linux implementation.
+ *
+ * Copyright (C) 2000  Axis Communications AB.
+ *
+ * Created by Simon Kagstrom <simonk@axis.com>.
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * $Id: jffs_proc.h,v 1.2 2000/11/15 22:04:12 sjhill Exp $
+ */
+
+/* jffs_proc.h defines a structure for inclusion in the proc-file system.  */
+#ifndef __LINUX_JFFS_PROC_H__
+#define __LINUX_JFFS_PROC_H__
+
+#include <linux/proc_fs.h>
+
+/* The proc_dir_entry for jffs (defined in jffs_proc.c).  */
+extern struct proc_dir_entry *jffs_proc_root;
+
+int jffs_register_jffs_proc_dir(kdev_t dev, struct jffs_control *c);
+int jffs_unregister_jffs_proc_dir(struct jffs_control *c);
+
+#endif /* __LINUX_JFFS_PROC_H__ */
diff --git a/fs/jffs2/Makefile b/fs/jffs2/Makefile
new file mode 100644
index 00000000000000..e9e6e948c9f130
--- /dev/null
+++ b/fs/jffs2/Makefile
@@ -0,0 +1,25 @@
+#
+# Makefile for the linux Journalling Flash FileSystem (JFFS) routines.
+#
+# $Id: Makefile,v 1.25.2.1 2002/10/11 09:04:44 dwmw2 Exp $
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile...
+
+
+COMPR_OBJS	:= compr.o compr_rubin.o compr_rtime.o pushpull.o \
+			compr_zlib.o
+JFFS2_OBJS	:= dir.o file.o ioctl.o nodelist.o malloc.o \
+	read.o nodemgmt.o readinode.o super.o write.o scan.o gc.o \
+	symlink.o build.o erase.o background.o
+
+O_TARGET := jffs2.o
+
+obj-y := $(COMPR_OBJS) $(JFFS2_OBJS)
+obj-m := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
+
diff --git a/fs/jffs2/TODO b/fs/jffs2/TODO
new file mode 100644
index 00000000000000..f5066b10073f7a
--- /dev/null
+++ b/fs/jffs2/TODO
@@ -0,0 +1,20 @@
+$Id: TODO,v 1.3 2001/03/01 23:26:48 dwmw2 Exp $
+
+ - disable compression in commit_write()? Or at least optimise the 'always write
+	whole page' bit.
+ - fix zlib. It's ugly as hell and there are at least three copies in the kernel tree
+ - fine-tune the allocation / GC thresholds
+ - chattr support - turning on/off and tuning compression per-inode
+ - checkpointing (do we need this? scan is quite fast)
+ - make the scan code populate real inodes so read_inode just after 
+	mount doesn't have to read the flash twice for large files.
+	Make this a per-inode option, changable with chattr, so you can
+	decide which inodes should be in-core immediately after mount.
+ - stop it depending on a block device. mount(8) needs a change for this.
+ - make it work on NAND flash. We need to know when we can GC
+	deletion dirents, etc. And think about holes/truncation. It can
+	all be done reasonably simply, but it need implementing.
+ - NAND flash will require new dirent/dnode structures on the medium with
+	ECC data in rather than just the CRC we're using ATM.
+ - test, test, test
+
diff --git a/fs/jffs2/background.c b/fs/jffs2/background.c
new file mode 100644
index 00000000000000..b0f01c283de023
--- /dev/null
+++ b/fs/jffs2/background.c
@@ -0,0 +1,183 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright (C) 2001 Red Hat, Inc.
+ *
+ * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
+ *
+ * The original JFFS, from which the design for JFFS2 was derived,
+ * was designed and implemented by Axis Communications AB.
+ *
+ * The contents of this file are subject to the Red Hat eCos Public
+ * License Version 1.1 (the "Licence"); you may not use this file
+ * except in compliance with the Licence.  You may obtain a copy of
+ * the Licence at http://www.redhat.com/
+ *
+ * Software distributed under the Licence is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing rights and
+ * limitations under the Licence.
+ *
+ * The Original Code is JFFS2 - Journalling Flash File System, version 2
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in
+ * which case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the RHEPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the RHEPL or the GPL.
+ *
+ * $Id: background.c,v 1.16 2001/10/08 09:22:38 dwmw2 Exp $
+ *
+ */
+
+#define __KERNEL_SYSCALLS__
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/unistd.h>
+#include <linux/jffs2.h>
+#include <linux/mtd/mtd.h>
+#include <linux/interrupt.h>
+#include <linux/completion.h>
+#include "nodelist.h"
+
+
+static int jffs2_garbage_collect_thread(void *);
+static int thread_should_wake(struct jffs2_sb_info *c);
+
+void jffs2_garbage_collect_trigger(struct jffs2_sb_info *c)
+{
+	spin_lock_bh(&c->erase_completion_lock);
+        if (c->gc_task && thread_should_wake(c))
+                send_sig(SIGHUP, c->gc_task, 1);
+	spin_unlock_bh(&c->erase_completion_lock);
+}
+
+/* This must only ever be called when no GC thread is currently running */
+int jffs2_start_garbage_collect_thread(struct jffs2_sb_info *c)
+{
+	pid_t pid;
+	int ret = 0;
+
+	if (c->gc_task)
+		BUG();
+
+	init_MUTEX_LOCKED(&c->gc_thread_start);
+	init_completion(&c->gc_thread_exit);
+
+	pid = kernel_thread(jffs2_garbage_collect_thread, c, CLONE_FS|CLONE_FILES);
+	if (pid < 0) {
+		printk(KERN_WARNING "fork failed for JFFS2 garbage collect thread: %d\n", -pid);
+		complete(&c->gc_thread_exit);
+		ret = pid;
+	} else {
+		/* Wait for it... */
+		D1(printk(KERN_DEBUG "JFFS2: Garbage collect thread is pid %d\n", pid));
+		down(&c->gc_thread_start);
+	}
+ 
+	return ret;
+}
+
+void jffs2_stop_garbage_collect_thread(struct jffs2_sb_info *c)
+{
+	spin_lock_bh(&c->erase_completion_lock);
+	if (c->gc_task) {
+		D1(printk(KERN_DEBUG "jffs2: Killing GC task %d\n", c->gc_task->pid));
+		send_sig(SIGKILL, c->gc_task, 1);
+	}
+	spin_unlock_bh(&c->erase_completion_lock);
+	wait_for_completion(&c->gc_thread_exit);
+}
+
+static int jffs2_garbage_collect_thread(void *_c)
+{
+	struct jffs2_sb_info *c = _c;
+
+	daemonize();
+	current->tty = NULL;
+	c->gc_task = current;
+	up(&c->gc_thread_start);
+
+        sprintf(current->comm, "jffs2_gcd_mtd%d", c->mtd->index);
+
+	/* FIXME in the 2.2 backport */
+	current->nice = 10;
+
+	for (;;) {
+		spin_lock_irq(&current->sigmask_lock);
+		siginitsetinv (&current->blocked, sigmask(SIGHUP) | sigmask(SIGKILL) | sigmask(SIGSTOP) | sigmask(SIGCONT));
+		recalc_sigpending(current);
+		spin_unlock_irq(&current->sigmask_lock);
+
+		if (!thread_should_wake(c)) {
+                        set_current_state (TASK_INTERRUPTIBLE);
+			D1(printk(KERN_DEBUG "jffs2_garbage_collect_thread sleeping...\n"));
+			/* Yes, there's a race here; we checked thread_should_wake() before
+			   setting current->state to TASK_INTERRUPTIBLE. But it doesn't
+			   matter - We don't care if we miss a wakeup, because the GC thread
+			   is only an optimisation anyway. */
+			schedule();
+		}
+                
+		if (current->need_resched)
+			schedule();
+
+                /* Put_super will send a SIGKILL and then wait on the sem. 
+                 */
+                while (signal_pending(current)) {
+                        siginfo_t info;
+                        unsigned long signr;
+
+                        spin_lock_irq(&current->sigmask_lock);
+                        signr = dequeue_signal(&current->blocked, &info);
+                        spin_unlock_irq(&current->sigmask_lock);
+
+                        switch(signr) {
+                        case SIGSTOP:
+                                D1(printk(KERN_DEBUG "jffs2_garbage_collect_thread(): SIGSTOP received.\n"));
+                                set_current_state(TASK_STOPPED);
+                                schedule();
+                                break;
+
+                        case SIGKILL:
+                                D1(printk(KERN_DEBUG "jffs2_garbage_collect_thread(): SIGKILL received.\n"));
+				spin_lock_bh(&c->erase_completion_lock);
+                                c->gc_task = NULL;
+				spin_unlock_bh(&c->erase_completion_lock);
+				complete_and_exit(&c->gc_thread_exit, 0);
+
+			case SIGHUP:
+				D1(printk(KERN_DEBUG "jffs2_garbage_collect_thread(): SIGHUP received.\n"));
+				break;
+			default:
+				D1(printk(KERN_DEBUG "jffs2_garbage_collect_thread(): signal %ld received\n", signr));
+
+                        }
+                }
+		/* We don't want SIGHUP to interrupt us. STOP and KILL are OK though. */
+		spin_lock_irq(&current->sigmask_lock);
+		siginitsetinv (&current->blocked, sigmask(SIGKILL) | sigmask(SIGSTOP) | sigmask(SIGCONT));
+		recalc_sigpending(current);
+		spin_unlock_irq(&current->sigmask_lock);
+
+		D1(printk(KERN_DEBUG "jffs2_garbage_collect_thread(): pass\n"));
+		jffs2_garbage_collect_pass(c);
+	}
+}
+
+static int thread_should_wake(struct jffs2_sb_info *c)
+{
+	D1(printk(KERN_DEBUG "thread_should_wake(): nr_free_blocks %d, nr_erasing_blocks %d, dirty_size 0x%x\n", 
+		  c->nr_free_blocks, c->nr_erasing_blocks, c->dirty_size));
+	if (c->nr_free_blocks + c->nr_erasing_blocks < JFFS2_RESERVED_BLOCKS_GCTRIGGER &&
+	    c->dirty_size > c->sector_size)
+		return 1;
+	else 
+		return 0;
+}
diff --git a/fs/jffs2/build.c b/fs/jffs2/build.c
new file mode 100644
index 00000000000000..3686771036f3d2
--- /dev/null
+++ b/fs/jffs2/build.c
@@ -0,0 +1,287 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright (C) 2001 Red Hat, Inc.
+ *
+ * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
+ *
+ * The original JFFS, from which the design for JFFS2 was derived,
+ * was designed and implemented by Axis Communications AB.
+ *
+ * The contents of this file are subject to the Red Hat eCos Public
+ * License Version 1.1 (the "Licence"); you may not use this file
+ * except in compliance with the Licence.  You may obtain a copy of
+ * the Licence at http://www.redhat.com/
+ *
+ * Software distributed under the Licence is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing rights and
+ * limitations under the Licence.
+ *
+ * The Original Code is JFFS2 - Journalling Flash File System, version 2
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in
+ * which case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the RHEPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the RHEPL or the GPL.
+ *
+ * $Id: build.c,v 1.16.2.3 2003/04/30 09:43:32 dwmw2 Exp $
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/jffs2.h>
+#include <linux/slab.h>
+#include "nodelist.h"
+
+int jffs2_build_inode_pass1(struct jffs2_sb_info *, struct jffs2_inode_cache *);
+int jffs2_build_remove_unlinked_inode(struct jffs2_sb_info *, struct jffs2_inode_cache *);
+
+static inline struct jffs2_inode_cache *
+first_inode_chain(int *i, struct jffs2_sb_info *c)
+{
+	for (; *i < INOCACHE_HASHSIZE; (*i)++) {
+		if (c->inocache_list[*i])
+			return c->inocache_list[*i];
+	}
+	return NULL;
+}
+
+static inline struct jffs2_inode_cache *
+next_inode(int *i, struct jffs2_inode_cache *ic, struct jffs2_sb_info *c)
+{
+	/* More in this chain? */
+	if (ic->next)
+		return ic->next;
+	(*i)++;
+	return first_inode_chain(i, c);
+}
+
+#define for_each_inode(i, c, ic)			\
+	for (i = 0, ic = first_inode_chain(&i, (c));	\
+	     ic;					\
+	     ic = next_inode(&i, ic, (c)))
+
+/* Scan plan:
+ - Scan physical nodes. Build map of inodes/dirents. Allocate inocaches as we go
+ - Scan directory tree from top down, setting nlink in inocaches
+ - Scan inocaches for inodes with nlink==0
+*/
+int jffs2_build_filesystem(struct jffs2_sb_info *c)
+{
+	int ret;
+	int i;
+	struct jffs2_inode_cache *ic;
+
+	/* First, scan the medium and build all the inode caches with
+	   lists of physical nodes */
+
+	c->flags |= JFFS2_SB_FLAG_MOUNTING;
+	ret = jffs2_scan_medium(c);
+	c->flags &= ~JFFS2_SB_FLAG_MOUNTING;
+
+	if (ret)
+		return ret;
+
+	D1(printk(KERN_DEBUG "Scanned flash completely\n"));
+	/* Now build the data map for each inode, marking obsoleted nodes
+	   as such, and also increase nlink of any children. */
+	for_each_inode(i, c, ic) {
+		D1(printk(KERN_DEBUG "Pass 1: ino #%u\n", ic->ino));
+		ret = jffs2_build_inode_pass1(c, ic);
+		if (ret) {
+			D1(printk(KERN_WARNING "Eep. jffs2_build_inode_pass1 for ino %d returned %d\n", ic->ino, ret));
+			return ret;
+		}
+	}
+	D1(printk(KERN_DEBUG "Pass 1 complete\n"));
+
+	/* Next, scan for inodes with nlink == 0 and remove them. If
+	   they were directories, then decrement the nlink of their
+	   children too, and repeat the scan. As that's going to be
+	   a fairly uncommon occurrence, it's not so evil to do it this
+	   way. Recursion bad. */
+	do { 
+		D1(printk(KERN_DEBUG "Pass 2 (re)starting\n"));
+		ret = 0;
+		for_each_inode(i, c, ic) {
+			D1(printk(KERN_DEBUG "Pass 2: ino #%u, nlink %d, ic %p, nodes %p\n", ic->ino, ic->nlink, ic, ic->nodes));
+			if (ic->nlink)
+				continue;
+			
+			ret = jffs2_build_remove_unlinked_inode(c, ic);
+			if (ret)
+				break;
+		/* -EAGAIN means the inode's nlink was zero, so we deleted it,
+		   and furthermore that it had children and their nlink has now
+		   gone to zero too. So we have to restart the scan. */
+		} 
+	} while(ret == -EAGAIN);
+	
+	D1(printk(KERN_DEBUG "Pass 2 complete\n"));
+	
+	/* Finally, we can scan again and free the dirent nodes and scan_info structs */
+	for_each_inode(i, c, ic) {
+		struct jffs2_scan_info *scan = ic->scan;
+		struct jffs2_full_dirent *fd;
+		D1(printk(KERN_DEBUG "Pass 3: ino #%u, ic %p, nodes %p\n", ic->ino, ic, ic->nodes));
+		if (!scan) {
+			if (ic->nlink) {
+				D1(printk(KERN_WARNING "Why no scan struct for ino #%u which has nlink %d?\n", ic->ino, ic->nlink));
+			}
+			continue;
+		}
+		ic->scan = NULL;
+		while(scan->dents) {
+			fd = scan->dents;
+			scan->dents = fd->next;
+			jffs2_free_full_dirent(fd);
+		}
+		kfree(scan);
+	}
+	D1(printk(KERN_DEBUG "Pass 3 complete\n"));
+
+	return ret;
+}
+	
+int jffs2_build_inode_pass1(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic)
+{
+	struct jffs2_tmp_dnode_info *tn;
+	struct jffs2_full_dirent *fd;
+	struct jffs2_node_frag *fraglist = NULL;
+	struct jffs2_tmp_dnode_info *metadata = NULL;
+
+	D1(printk(KERN_DEBUG "jffs2_build_inode building inode #%u\n", ic->ino));
+	if (ic->ino > c->highest_ino)
+		c->highest_ino = ic->ino;
+
+	if (!ic->scan->tmpnodes && ic->ino != 1) {
+		D1(printk(KERN_DEBUG "jffs2_build_inode: ino #%u has no data nodes!\n", ic->ino));
+	}
+	/* Build the list to make sure any obsolete nodes are marked as such */
+	while(ic->scan->tmpnodes) {
+		tn = ic->scan->tmpnodes;
+		ic->scan->tmpnodes = tn->next;
+		
+		if (metadata && tn->version > metadata->version) {
+			D1(printk(KERN_DEBUG "jffs2_build_inode_pass1 ignoring old metadata at 0x%08x\n",
+				  metadata->fn->raw->flash_offset &~3));
+			
+			jffs2_free_full_dnode(metadata->fn);
+			jffs2_free_tmp_dnode_info(metadata);
+			metadata = NULL;
+		}
+			
+		if (tn->fn->size) {
+			jffs2_add_full_dnode_to_fraglist (c, &fraglist, tn->fn);
+			jffs2_free_tmp_dnode_info(tn);
+		} else {
+			if (!metadata) {
+				metadata = tn;
+			} else {
+				D1(printk(KERN_DEBUG "jffs2_build_inode_pass1 ignoring new metadata at 0x%08x\n",
+					  tn->fn->raw->flash_offset &~3));
+				
+				jffs2_free_full_dnode(tn->fn);
+				jffs2_free_tmp_dnode_info(tn);
+			}
+		}
+	}
+		
+	/* OK. Now clear up */
+	if (metadata) {
+		jffs2_free_full_dnode(metadata->fn);
+		jffs2_free_tmp_dnode_info(metadata);
+	}
+	metadata = NULL;
+	
+	while (fraglist) {
+		struct jffs2_node_frag *frag;
+		frag = fraglist;
+		fraglist = fraglist->next;
+		
+		if (frag->node && !(--frag->node->frags)) {
+			jffs2_free_full_dnode(frag->node);
+		}
+		jffs2_free_node_frag(frag);
+	}
+
+	/* Now for each child, increase nlink */
+	for(fd=ic->scan->dents; fd; fd = fd->next) {
+		struct jffs2_inode_cache *child_ic;
+		if (!fd->ino)
+			continue;
+
+		child_ic = jffs2_get_ino_cache(c, fd->ino);
+		if (!child_ic) {
+			printk(KERN_NOTICE "Eep. Child \"%s\" (ino #%u) of dir ino #%u doesn't exist!\n",
+				  fd->name, fd->ino, ic->ino);
+			continue;
+		}
+
+		if (child_ic->nlink++ && fd->type == DT_DIR) {
+			printk(KERN_NOTICE "Child dir \"%s\" (ino #%u) of dir ino #%u appears to be a hard link\n", fd->name, fd->ino, ic->ino);
+			if (fd->ino == 1 && ic->ino == 1) {
+				printk(KERN_NOTICE "This is mostly harmless, and probably caused by creating a JFFS2 image\n");
+				printk(KERN_NOTICE "using a buggy version of mkfs.jffs2. Use at least v1.17.\n");
+			}
+			/* What do we do about it? */
+		}
+		D1(printk(KERN_DEBUG "Increased nlink for child \"%s\" (ino #%u)\n", fd->name, fd->ino));
+		/* Can't free them. We might need them in pass 2 */
+	}
+	return 0;
+}
+
+int jffs2_build_remove_unlinked_inode(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic)
+{
+	struct jffs2_raw_node_ref *raw;
+	struct jffs2_full_dirent *fd;
+	int ret = 0;
+
+	if(!ic->scan) {
+		D1(printk(KERN_DEBUG "ino #%u was already removed\n", ic->ino));
+		return 0;
+	}
+
+	D1(printk(KERN_DEBUG "JFFS2: Removing ino #%u with nlink == zero.\n", ic->ino));
+	
+	for (raw = ic->nodes; raw != (void *)ic; raw = raw->next_in_ino) {
+		D1(printk(KERN_DEBUG "obsoleting node at 0x%08x\n", raw->flash_offset&~3));
+		jffs2_mark_node_obsolete(c, raw);
+	}
+
+	if (ic->scan->dents) {
+		printk(KERN_NOTICE "Inode #%u was a directory with children - removing those too...\n", ic->ino);
+	
+		while(ic->scan->dents) {
+			struct jffs2_inode_cache *child_ic;
+
+			fd = ic->scan->dents;
+			ic->scan->dents = fd->next;
+
+			D1(printk(KERN_DEBUG "Removing child \"%s\", ino #%u\n",
+				  fd->name, fd->ino));
+			
+			child_ic = jffs2_get_ino_cache(c, fd->ino);
+			if (!child_ic) {
+				printk(KERN_NOTICE "Cannot remove child \"%s\", ino #%u, because it doesn't exist\n", fd->name, fd->ino);
+				continue;
+			}
+			jffs2_free_full_dirent(fd);
+			child_ic->nlink--;
+		}
+		ret = -EAGAIN;
+	}
+	kfree(ic->scan);
+	ic->scan = NULL;
+	//	jffs2_del_ino_cache(c, ic);
+	//	jffs2_free_inode_cache(ic);
+	return ret;
+}
diff --git a/fs/jffs2/compr.c b/fs/jffs2/compr.c
new file mode 100644
index 00000000000000..258be645652060
--- /dev/null
+++ b/fs/jffs2/compr.c
@@ -0,0 +1,151 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright (C) 2001 Red Hat, Inc.
+ *
+ * Created by Arjan van de Ven <arjanv@redhat.com>
+ *
+ * The original JFFS, from which the design for JFFS2 was derived,
+ * was designed and implemented by Axis Communications AB.
+ *
+ * The contents of this file are subject to the Red Hat eCos Public
+ * License Version 1.1 (the "Licence"); you may not use this file
+ * except in compliance with the Licence.  You may obtain a copy of
+ * the Licence at http://www.redhat.com/
+ *
+ * Software distributed under the Licence is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing rights and
+ * limitations under the Licence.
+ *
+ * The Original Code is JFFS2 - Journalling Flash File System, version 2
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in
+ * which case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the RHEPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the RHEPL or the GPL.
+ *
+ * $Id: compr.c,v 1.17 2001/09/23 09:56:46 dwmw2 Exp $
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/jffs2.h>
+
+int zlib_compress(unsigned char *data_in, unsigned char *cpage_out, __u32 *sourcelen, __u32 *dstlen);
+void zlib_decompress(unsigned char *data_in, unsigned char *cpage_out, __u32 srclen, __u32 destlen);
+int rtime_compress(unsigned char *data_in, unsigned char *cpage_out, __u32 *sourcelen, __u32 *dstlen);
+void rtime_decompress(unsigned char *data_in, unsigned char *cpage_out, __u32 srclen, __u32 destlen);
+int rubinmips_compress(unsigned char *data_in, unsigned char *cpage_out, __u32 *sourcelen, __u32 *dstlen);
+void rubinmips_decompress(unsigned char *data_in, unsigned char *cpage_out, __u32 srclen, __u32 destlen);
+int dynrubin_compress(unsigned char *data_in, unsigned char *cpage_out, __u32 *sourcelen, __u32 *dstlen);
+void dynrubin_decompress(unsigned char *data_in, unsigned char *cpage_out, __u32 srclen, __u32 destlen);
+
+
+/* jffs2_compress:
+ * @data: Pointer to uncompressed data
+ * @cdata: Pointer to buffer for compressed data
+ * @datalen: On entry, holds the amount of data available for compression.
+ *	On exit, expected to hold the amount of data actually compressed.
+ * @cdatalen: On entry, holds the amount of space available for compressed
+ *	data. On exit, expected to hold the actual size of the compressed
+ *	data.
+ *
+ * Returns: Byte to be stored with data indicating compression type used.
+ * Zero is used to show that the data could not be compressed - the 
+ * compressed version was actually larger than the original.
+ *
+ * If the cdata buffer isn't large enough to hold all the uncompressed data,
+ * jffs2_compress should compress as much as will fit, and should set 
+ * *datalen accordingly to show the amount of data which were compressed.
+ */
+unsigned char jffs2_compress(unsigned char *data_in, unsigned char *cpage_out, 
+		    __u32 *datalen, __u32 *cdatalen)
+{
+	int ret;
+
+	ret = zlib_compress(data_in, cpage_out, datalen, cdatalen);
+	if (!ret) {
+		return JFFS2_COMPR_ZLIB;
+	}
+#if 0 /* Disabled 23/9/1. With zlib it hardly ever gets a look in */
+	ret = dynrubin_compress(data_in, cpage_out, datalen, cdatalen);
+	if (!ret) {
+		return JFFS2_COMPR_DYNRUBIN;
+	}
+#endif
+#if 0 /* Disabled 26/2/1. Obsoleted by dynrubin */
+	ret = rubinmips_compress(data_in, cpage_out, datalen, cdatalen);
+	if (!ret) {
+		return JFFS2_COMPR_RUBINMIPS;
+	}
+#endif
+	/* rtime does manage to recompress already-compressed data */
+	ret = rtime_compress(data_in, cpage_out, datalen, cdatalen);
+	if (!ret) {
+		return JFFS2_COMPR_RTIME;
+	}
+#if 0
+	/* We don't need to copy. Let the caller special-case the COMPR_NONE case. */
+	/* If we get here, no compression is going to work */
+	/* But we might want to use the fragmentation part -- Arjan */
+	memcpy(cpage_out,data_in,min(*datalen,*cdatalen));
+	if (*datalen > *cdatalen)
+		*datalen = *cdatalen;
+#endif		
+	return JFFS2_COMPR_NONE; /* We failed to compress */
+
+}
+
+
+int jffs2_decompress(unsigned char comprtype, unsigned char *cdata_in, 
+		     unsigned char *data_out, __u32 cdatalen, __u32 datalen)
+{
+	switch (comprtype) {
+	case JFFS2_COMPR_NONE:
+		/* This should be special-cased elsewhere, but we might as well deal with it */
+		memcpy(data_out, cdata_in, datalen);
+		break;
+
+	case JFFS2_COMPR_ZERO:
+		memset(data_out, 0, datalen);
+		break;
+
+	case JFFS2_COMPR_ZLIB:
+		zlib_decompress(cdata_in, data_out, cdatalen, datalen);
+		break;
+
+	case JFFS2_COMPR_RTIME:
+		rtime_decompress(cdata_in, data_out, cdatalen, datalen);
+		break;
+
+	case JFFS2_COMPR_RUBINMIPS:
+#if 0 /* Disabled 23/9/1 */
+		rubinmips_decompress(cdata_in, data_out, cdatalen, datalen);
+#else
+		printk(KERN_WARNING "JFFS2: Rubinmips compression encountered but support not compiled in!\n");
+#endif
+		break;
+	case JFFS2_COMPR_DYNRUBIN:
+#if 1 /* Phase this one out */
+		dynrubin_decompress(cdata_in, data_out, cdatalen, datalen);
+#else
+		printk(KERN_WARNING "JFFS2: Dynrubin compression encountered but support not compiled in!\n");
+#endif
+		break;
+
+	default:
+		printk(KERN_NOTICE "Unknown JFFS2 compression type 0x%02x\n", comprtype);
+		return -EIO;
+	}
+	return 0;
+}
diff --git a/fs/jffs2/compr_rtime.c b/fs/jffs2/compr_rtime.c
new file mode 100644
index 00000000000000..1a71020c9938ac
--- /dev/null
+++ b/fs/jffs2/compr_rtime.c
@@ -0,0 +1,128 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright (C) 2001 Red Hat, Inc.
+ *
+ * Created by Arjan van de Ven <arjanv@redhat.com>
+ *
+ * The original JFFS, from which the design for JFFS2 was derived,
+ * was designed and implemented by Axis Communications AB.
+ *
+ * The contents of this file are subject to the Red Hat eCos Public
+ * License Version 1.1 (the "Licence"); you may not use this file
+ * except in compliance with the Licence.  You may obtain a copy of
+ * the Licence at http://www.redhat.com/
+ *
+ * Software distributed under the Licence is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing rights and
+ * limitations under the Licence.
+ *
+ * The Original Code is JFFS2 - Journalling Flash File System, version 2
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in
+ * which case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the RHEPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the RHEPL or the GPL.
+ *
+ * $Id: compr_rtime.c,v 1.5 2001/03/15 15:38:23 dwmw2 Exp $
+ *
+ *
+ * Very simple lz77-ish encoder.
+ *
+ * Theory of operation: Both encoder and decoder have a list of "last
+ * occurances" for every possible source-value; after sending the
+ * first source-byte, the second byte indicated the "run" length of
+ * matches
+ *
+ * The algorithm is intended to only send "whole bytes", no bit-messing.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/string.h> 
+
+/* _compress returns the compressed size, -1 if bigger */
+int rtime_compress(unsigned char *data_in, unsigned char *cpage_out, 
+		   __u32 *sourcelen, __u32 *dstlen)
+{
+	int positions[256];
+	int outpos = 0;
+	int pos=0;
+
+	memset(positions,0,sizeof(positions)); 
+	
+	while (pos < (*sourcelen) && outpos <= (*dstlen)-2) {
+		int backpos, runlen=0;
+		unsigned char value;
+		
+		value = data_in[pos];
+
+		cpage_out[outpos++] = data_in[pos++];
+		
+		backpos = positions[value];
+		positions[value]=pos;
+		
+		while ((backpos < pos) && (pos < (*sourcelen)) &&
+		       (data_in[pos]==data_in[backpos++]) && (runlen<255)) {
+			pos++;
+			runlen++;
+		}
+		cpage_out[outpos++] = runlen;
+	}
+
+	if (outpos >= pos) {
+		/* We failed */
+		return -1;
+	}
+	
+	/* Tell the caller how much we managed to compress, and how much space it took */
+	*sourcelen = pos;
+	*dstlen = outpos;
+	return 0;
+}		   
+
+
+void rtime_decompress(unsigned char *data_in, unsigned char *cpage_out,
+		      __u32 srclen, __u32 destlen)
+{
+	int positions[256];
+	int outpos = 0;
+	int pos=0;
+	
+	memset(positions,0,sizeof(positions)); 
+	
+	while (outpos<destlen) {
+		unsigned char value;
+		int backoffs;
+		int repeat;
+		
+		value = data_in[pos++];
+		cpage_out[outpos++] = value; /* first the verbatim copied byte */
+		repeat = data_in[pos++];
+		backoffs = positions[value];
+		
+		positions[value]=outpos;
+		if (repeat) {
+			if (backoffs + repeat >= outpos) {
+				while(repeat) {
+					cpage_out[outpos++] = cpage_out[backoffs++];
+					repeat--;
+				}
+			} else {
+				memcpy(&cpage_out[outpos],&cpage_out[backoffs],repeat);
+				outpos+=repeat;		
+			}
+		}
+	}		
+}		   
+
+
diff --git a/fs/jffs2/compr_rubin.c b/fs/jffs2/compr_rubin.c
new file mode 100644
index 00000000000000..22d8dd570f5682
--- /dev/null
+++ b/fs/jffs2/compr_rubin.c
@@ -0,0 +1,349 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright (C) 2001 Red Hat, Inc.
+ *
+ * Created by Arjan van de Ven <arjanv@redhat.com>
+ *
+ * The original JFFS, from which the design for JFFS2 was derived,
+ * was designed and implemented by Axis Communications AB.
+ *
+ * The contents of this file are subject to the Red Hat eCos Public
+ * License Version 1.1 (the "Licence"); you may not use this file
+ * except in compliance with the Licence.  You may obtain a copy of
+ * the Licence at http://www.redhat.com/
+ *
+ * Software distributed under the Licence is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing rights and
+ * limitations under the Licence.
+ *
+ * The Original Code is JFFS2 - Journalling Flash File System, version 2
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in
+ * which case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the RHEPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the RHEPL or the GPL.
+ *
+ * $Id: compr_rubin.c,v 1.13 2001/09/23 10:06:05 rmk Exp $
+ *
+ */
+
+ 
+#include <linux/string.h>
+#include <linux/types.h>
+#include "compr_rubin.h"
+#include "histo_mips.h"
+
+
+
+void init_rubin(struct rubin_state *rs, int div, int *bits)
+{	
+	int c;
+
+	rs->q = 0;
+	rs->p = (long) (2 * UPPER_BIT_RUBIN);
+	rs->bit_number = (long) 0;
+	rs->bit_divider = div;
+	for (c=0; c<8; c++)
+		rs->bits[c] = bits[c];
+}
+
+
+int encode(struct rubin_state *rs, long A, long B, int symbol)
+{
+
+	long i0, i1;
+	int ret;
+
+	while ((rs->q >= UPPER_BIT_RUBIN) || ((rs->p + rs->q) <= UPPER_BIT_RUBIN)) {
+		rs->bit_number++;
+		
+		ret = pushbit(&rs->pp, (rs->q & UPPER_BIT_RUBIN) ? 1 : 0, 0);
+		if (ret)
+			return ret;
+		rs->q &= LOWER_BITS_RUBIN;
+		rs->q <<= 1;
+		rs->p <<= 1;
+	}
+	i0 = A * rs->p / (A + B);
+	if (i0 <= 0) {
+		i0 = 1;
+	}
+	if (i0 >= rs->p) {
+		i0 = rs->p - 1;
+	}
+	i1 = rs->p - i0;
+
+	if (symbol == 0)
+		rs->p = i0;
+	else {
+		rs->p = i1;
+		rs->q += i0;
+	}
+	return 0;
+}
+
+
+void end_rubin(struct rubin_state *rs)
+{				
+
+	int i;
+
+	for (i = 0; i < RUBIN_REG_SIZE; i++) {
+		pushbit(&rs->pp, (UPPER_BIT_RUBIN & rs->q) ? 1 : 0, 1);
+		rs->q &= LOWER_BITS_RUBIN;
+		rs->q <<= 1;
+	}
+}
+
+
+void init_decode(struct rubin_state *rs, int div, int *bits)
+{
+	init_rubin(rs, div, bits);		
+
+	/* behalve lower */
+	rs->rec_q = 0;
+
+	for (rs->bit_number = 0; rs->bit_number++ < RUBIN_REG_SIZE; rs->rec_q = rs->rec_q * 2 + (long) (pullbit(&rs->pp)))
+		;
+}
+
+static void __do_decode(struct rubin_state *rs, unsigned long p, unsigned long q)
+{
+	register unsigned long lower_bits_rubin = LOWER_BITS_RUBIN;
+	unsigned long rec_q;
+	int c, bits = 0;
+
+	/*
+	 * First, work out how many bits we need from the input stream.
+	 * Note that we have already done the initial check on this
+	 * loop prior to calling this function.
+	 */
+	do {
+		bits++;
+		q &= lower_bits_rubin;
+		q <<= 1;
+		p <<= 1;
+	} while ((q >= UPPER_BIT_RUBIN) || ((p + q) <= UPPER_BIT_RUBIN));
+
+	rs->p = p;
+	rs->q = q;
+
+	rs->bit_number += bits;
+
+	/*
+	 * Now get the bits.  We really want this to be "get n bits".
+	 */
+	rec_q = rs->rec_q;
+	do {
+		c = pullbit(&rs->pp);
+		rec_q &= lower_bits_rubin;
+		rec_q <<= 1;
+		rec_q += c;
+	} while (--bits);
+	rs->rec_q = rec_q;
+}
+
+int decode(struct rubin_state *rs, long A, long B)
+{
+	unsigned long p = rs->p, q = rs->q;
+	long i0, threshold;
+	int symbol;
+
+	if (q >= UPPER_BIT_RUBIN || ((p + q) <= UPPER_BIT_RUBIN))
+		__do_decode(rs, p, q);
+
+	i0 = A * rs->p / (A + B);
+	if (i0 <= 0) {
+		i0 = 1;
+	}
+	if (i0 >= rs->p) {
+		i0 = rs->p - 1;
+	}
+
+	threshold = rs->q + i0;
+	symbol = rs->rec_q >= threshold;
+	if (rs->rec_q >= threshold) {
+		rs->q += i0;
+		i0 = rs->p - i0;
+	}
+
+	rs->p = i0;
+
+	return symbol;
+}
+
+
+
+static int out_byte(struct rubin_state *rs, unsigned char byte)
+{
+	int i, ret;
+	struct rubin_state rs_copy;
+	rs_copy = *rs;
+
+	for (i=0;i<8;i++) {
+		ret = encode(rs, rs->bit_divider-rs->bits[i],rs->bits[i],byte&1);
+		if (ret) {
+			/* Failed. Restore old state */
+			*rs = rs_copy;
+			return ret;
+		}
+		byte=byte>>1;
+	}
+	return 0;
+}
+
+static int in_byte(struct rubin_state *rs)
+{
+	int i, result = 0, bit_divider = rs->bit_divider;
+
+	for (i = 0; i < 8; i++)
+		result |= decode(rs, bit_divider - rs->bits[i], rs->bits[i]) << i;
+
+	return result;
+}
+
+
+
+int rubin_do_compress(int bit_divider, int *bits, unsigned char *data_in, 
+		      unsigned char *cpage_out, __u32 *sourcelen, __u32 *dstlen)
+	{
+	int outpos = 0;
+	int pos=0;
+	struct rubin_state rs;
+
+	init_pushpull(&rs.pp, cpage_out, *dstlen * 8, 0, 32);
+
+	init_rubin(&rs, bit_divider, bits);
+	
+	while (pos < (*sourcelen) && !out_byte(&rs, data_in[pos]))
+		pos++;
+	
+	end_rubin(&rs);
+
+	if (outpos > pos) {
+		/* We failed */
+		return -1;
+	}
+	
+	/* Tell the caller how much we managed to compress, 
+	 * and how much space it took */
+	
+	outpos = (pushedbits(&rs.pp)+7)/8;
+	
+	if (outpos >= pos)
+		return -1; /* We didn't actually compress */
+	*sourcelen = pos;
+	*dstlen = outpos;
+	return 0;
+}		   
+#if 0
+/* _compress returns the compressed size, -1 if bigger */
+int rubinmips_compress(unsigned char *data_in, unsigned char *cpage_out, 
+		   __u32 *sourcelen, __u32 *dstlen)
+{
+	return rubin_do_compress(BIT_DIVIDER_MIPS, bits_mips, data_in, cpage_out, sourcelen, dstlen);
+}
+#endif
+int dynrubin_compress(unsigned char *data_in, unsigned char *cpage_out, 
+		   __u32 *sourcelen, __u32 *dstlen)
+{
+	int bits[8];
+	unsigned char histo[256];
+	int i;
+	int ret;
+	__u32 mysrclen, mydstlen;
+
+	mysrclen = *sourcelen;
+	mydstlen = *dstlen - 8;
+
+	if (*dstlen <= 12)
+		return -1;
+
+	memset(histo, 0, 256);
+	for (i=0; i<mysrclen; i++) {
+		histo[data_in[i]]++;
+	}
+	memset(bits, 0, sizeof(int)*8);
+	for (i=0; i<256; i++) {
+		if (i&128)
+			bits[7] += histo[i];
+		if (i&64)
+			bits[6] += histo[i];
+		if (i&32)
+			bits[5] += histo[i];
+		if (i&16)
+			bits[4] += histo[i];
+		if (i&8)
+			bits[3] += histo[i];
+		if (i&4)
+			bits[2] += histo[i];
+		if (i&2)
+			bits[1] += histo[i];
+		if (i&1)
+			bits[0] += histo[i];
+	}
+
+	for (i=0; i<8; i++) {
+		bits[i] = (bits[i] * 256) / mysrclen;
+		if (!bits[i]) bits[i] = 1;
+		if (bits[i] > 255) bits[i] = 255;
+		cpage_out[i] = bits[i];
+	}
+
+	ret = rubin_do_compress(256, bits, data_in, cpage_out+8, &mysrclen, &mydstlen);
+	if (ret) 
+		return ret;
+
+	/* Add back the 8 bytes we took for the probabilities */
+	mydstlen += 8;
+
+	if (mysrclen <= mydstlen) {
+		/* We compressed */
+		return -1;
+	}
+
+	*sourcelen = mysrclen;
+	*dstlen = mydstlen;
+	return 0;
+}
+
+void rubin_do_decompress(int bit_divider, int *bits, unsigned char *cdata_in, 
+			 unsigned char *page_out, __u32 srclen, __u32 destlen)
+{
+	int outpos = 0;
+	struct rubin_state rs;
+	
+	init_pushpull(&rs.pp, cdata_in, srclen, 0, 0);
+	init_decode(&rs, bit_divider, bits);
+	
+	while (outpos < destlen) {
+		page_out[outpos++] = in_byte(&rs);
+	}
+}		   
+
+
+void rubinmips_decompress(unsigned char *data_in, unsigned char *cpage_out, 
+		   __u32 sourcelen, __u32 dstlen)
+{
+	rubin_do_decompress(BIT_DIVIDER_MIPS, bits_mips, data_in, cpage_out, sourcelen, dstlen);
+}
+
+void dynrubin_decompress(unsigned char *data_in, unsigned char *cpage_out, 
+		   __u32 sourcelen, __u32 dstlen)
+{
+	int bits[8];
+	int c;
+
+	for (c=0; c<8; c++)
+		bits[c] = data_in[c];
+
+	rubin_do_decompress(256, bits, data_in+8, cpage_out, sourcelen-8, dstlen);
+}
diff --git a/fs/jffs2/compr_rubin.h b/fs/jffs2/compr_rubin.h
new file mode 100644
index 00000000000000..58ccc2b8a7dac6
--- /dev/null
+++ b/fs/jffs2/compr_rubin.h
@@ -0,0 +1,28 @@
+/* Rubin encoder/decoder header       */
+/* work started at   : aug   3, 1994  */
+/* last modification : aug  15, 1994  */
+/* $Id: compr_rubin.h,v 1.5 2001/02/26 13:50:01 dwmw2 Exp $ */
+
+#include "pushpull.h"
+
+#define RUBIN_REG_SIZE   16
+#define UPPER_BIT_RUBIN    (((long) 1)<<(RUBIN_REG_SIZE-1))
+#define LOWER_BITS_RUBIN   ((((long) 1)<<(RUBIN_REG_SIZE-1))-1)
+
+
+struct rubin_state {
+	unsigned long p;		
+	unsigned long q;	
+	unsigned long rec_q;
+	long bit_number;
+	struct pushpull pp;
+	int bit_divider;
+	int bits[8];
+};
+
+
+void init_rubin (struct rubin_state *rs, int div, int *bits);
+int encode (struct rubin_state *, long, long, int);
+void end_rubin (struct rubin_state *);
+void init_decode (struct rubin_state *, int div, int *bits);
+int decode (struct rubin_state *, long, long);
diff --git a/fs/jffs2/compr_zlib.c b/fs/jffs2/compr_zlib.c
new file mode 100644
index 00000000000000..137568cff5ffff
--- /dev/null
+++ b/fs/jffs2/compr_zlib.c
@@ -0,0 +1,177 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright (C) 2001, 2002 Red Hat, Inc.
+ *
+ * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
+ *
+ * The original JFFS, from which the design for JFFS2 was derived,
+ * was designed and implemented by Axis Communications AB.
+ *
+ * The contents of this file are subject to the Red Hat eCos Public
+ * License Version 1.1 (the "Licence"); you may not use this file
+ * except in compliance with the Licence.  You may obtain a copy of
+ * the Licence at http://www.redhat.com/
+ *
+ * Software distributed under the Licence is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing rights and
+ * limitations under the Licence.
+ *
+ * The Original Code is JFFS2 - Journalling Flash File System, version 2
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in
+ * which case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the RHEPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the RHEPL or the GPL.
+ *
+ * $Id: compr_zlib.c,v 1.8.2.1 2002/10/11 09:04:44 dwmw2 Exp $
+ *
+ */
+
+#ifndef __KERNEL__
+#error "The userspace support got too messy and was removed. Update your mkfs.jffs2"
+#endif
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/mtd/compatmac.h> /* for min() */
+#include <linux/slab.h>
+#include <linux/jffs2.h>
+#include <linux/zlib.h>
+#include "nodelist.h"
+
+	/* Plan: call deflate() with avail_in == *sourcelen, 
+		avail_out = *dstlen - 12 and flush == Z_FINISH. 
+		If it doesn't manage to finish,	call it again with
+		avail_in == 0 and avail_out set to the remaining 12
+		bytes for it to clean up. 
+	   Q: Is 12 bytes sufficient?
+	*/
+#define STREAM_END_SPACE 12
+
+static DECLARE_MUTEX(deflate_sem);
+static DECLARE_MUTEX(inflate_sem);
+static void *deflate_workspace;
+static void *inflate_workspace;
+
+int __init jffs2_zlib_init(void)
+{
+	deflate_workspace = vmalloc(zlib_deflate_workspacesize());
+	if (!deflate_workspace) {
+		printk(KERN_WARNING "Failed to allocate %d bytes for deflate workspace\n", zlib_deflate_workspacesize());
+		return -ENOMEM;
+	}
+	D1(printk(KERN_DEBUG "Allocated %d bytes for deflate workspace\n", zlib_deflate_workspacesize()));
+	inflate_workspace = vmalloc(zlib_inflate_workspacesize());
+	if (!inflate_workspace) {
+		printk(KERN_WARNING "Failed to allocate %d bytes for inflate workspace\n", zlib_inflate_workspacesize());
+		vfree(deflate_workspace);
+		return -ENOMEM;
+	}
+	D1(printk(KERN_DEBUG "Allocated %d bytes for inflate workspace\n", zlib_inflate_workspacesize()));
+	return 0;
+}
+
+void jffs2_zlib_exit(void)
+{
+	vfree(deflate_workspace);
+	vfree(inflate_workspace);
+}
+
+int zlib_compress(unsigned char *data_in, unsigned char *cpage_out, 
+		   __u32 *sourcelen, __u32 *dstlen)
+{
+	z_stream strm;
+	int ret;
+
+	if (*dstlen <= STREAM_END_SPACE)
+		return -1;
+
+	down(&deflate_sem);
+	strm.workspace = deflate_workspace;
+
+	if (Z_OK != zlib_deflateInit(&strm, 3)) {
+		printk(KERN_WARNING "deflateInit failed\n");
+		up(&deflate_sem);
+		return -1;
+	}
+
+	strm.next_in = data_in;
+	strm.total_in = 0;
+	
+	strm.next_out = cpage_out;
+	strm.total_out = 0;
+
+	while (strm.total_out < *dstlen - STREAM_END_SPACE && strm.total_in < *sourcelen) {
+		strm.avail_out = *dstlen - (strm.total_out + STREAM_END_SPACE);
+		strm.avail_in = min((unsigned)(*sourcelen-strm.total_in), strm.avail_out);
+		D1(printk(KERN_DEBUG "calling deflate with avail_in %d, avail_out %d\n",
+			  strm.avail_in, strm.avail_out));
+		ret = zlib_deflate(&strm, Z_PARTIAL_FLUSH);
+		D1(printk(KERN_DEBUG "deflate returned with avail_in %d, avail_out %d, total_in %ld, total_out %ld\n", 
+			  strm.avail_in, strm.avail_out, strm.total_in, strm.total_out));
+		if (ret != Z_OK) {
+			D1(printk(KERN_DEBUG "deflate in loop returned %d\n", ret));
+			zlib_deflateEnd(&strm);
+			up(&deflate_sem);
+			return -1;
+		}
+	}
+	strm.avail_out += STREAM_END_SPACE;
+	strm.avail_in = 0;
+	ret = zlib_deflate(&strm, Z_FINISH);
+	zlib_deflateEnd(&strm);
+	up(&deflate_sem);
+	if (ret != Z_STREAM_END) {
+		D1(printk(KERN_DEBUG "final deflate returned %d\n", ret));
+		return -1;
+	}
+
+	D1(printk(KERN_DEBUG "zlib compressed %ld bytes into %ld\n",
+		  strm.total_in, strm.total_out));
+
+	if (strm.total_out >= strm.total_in)
+		return -1;
+
+	*dstlen = strm.total_out;
+	*sourcelen = strm.total_in;
+	return 0;
+}
+
+void zlib_decompress(unsigned char *data_in, unsigned char *cpage_out,
+		      __u32 srclen, __u32 destlen)
+{
+	z_stream strm;
+	int ret;
+
+	down(&inflate_sem);
+	strm.workspace = inflate_workspace;
+
+	if (Z_OK != zlib_inflateInit(&strm)) {
+		printk(KERN_WARNING "inflateInit failed\n");
+		up(&inflate_sem);
+		return;
+	}
+	strm.next_in = data_in;
+	strm.avail_in = srclen;
+	strm.total_in = 0;
+	
+	strm.next_out = cpage_out;
+	strm.avail_out = destlen;
+	strm.total_out = 0;
+
+	while((ret = zlib_inflate(&strm, Z_FINISH)) == Z_OK)
+		;
+	if (ret != Z_STREAM_END) {
+		printk(KERN_NOTICE "inflate returned %d\n", ret);
+	}
+	zlib_inflateEnd(&strm);
+	up(&inflate_sem);
+}
diff --git a/fs/jffs2/comprtest.c b/fs/jffs2/comprtest.c
new file mode 100644
index 00000000000000..dbc12ccb494917
--- /dev/null
+++ b/fs/jffs2/comprtest.c
@@ -0,0 +1,307 @@
+/* $Id: comprtest.c,v 1.4 2001/02/21 14:03:20 dwmw2 Exp $ */
+
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/module.h>
+#include <asm/types.h>
+#if 0
+#define TESTDATA_LEN 512
+static unsigned char testdata[TESTDATA_LEN] = {
+ 0x7f, 0x45, 0x4c, 0x46, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x02, 0x00, 0x03, 0x00, 0x01, 0x00, 0x00, 0x00, 0x60, 0x83, 0x04, 0x08, 0x34, 0x00, 0x00, 0x00,
+ 0xb0, 0x29, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x34, 0x00, 0x20, 0x00, 0x06, 0x00, 0x28, 0x00,
+ 0x1e, 0x00, 0x1b, 0x00, 0x06, 0x00, 0x00, 0x00, 0x34, 0x00, 0x00, 0x00, 0x34, 0x80, 0x04, 0x08,
+ 0x34, 0x80, 0x04, 0x08, 0xc0, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00,
+ 0x04, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0xf4, 0x00, 0x00, 0x00, 0xf4, 0x80, 0x04, 0x08,
+ 0xf4, 0x80, 0x04, 0x08, 0x13, 0x00, 0x00, 0x00, 0x13, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00,
+ 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x04, 0x08,
+ 0x00, 0x80, 0x04, 0x08, 0x0d, 0x05, 0x00, 0x00, 0x0d, 0x05, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00,
+ 0x00, 0x10, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x10, 0x05, 0x00, 0x00, 0x10, 0x95, 0x04, 0x08,
+ 0x10, 0x95, 0x04, 0x08, 0xe8, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00,
+ 0x00, 0x10, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x58, 0x05, 0x00, 0x00, 0x58, 0x95, 0x04, 0x08,
+ 0x58, 0x95, 0x04, 0x08, 0xa0, 0x00, 0x00, 0x00, 0xa0, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00,
+ 0x04, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x08, 0x01, 0x00, 0x00, 0x08, 0x81, 0x04, 0x08,
+ 0x08, 0x81, 0x04, 0x08, 0x20, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00,
+ 0x04, 0x00, 0x00, 0x00, 0x2f, 0x6c, 0x69, 0x62, 0x2f, 0x6c, 0x64, 0x2d, 0x6c, 0x69, 0x6e, 0x75,
+ 0x78, 0x2e, 0x73, 0x6f, 0x2e, 0x32, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00,
+ 0x01, 0x00, 0x00, 0x00, 0x47, 0x4e, 0x55, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00,
+ 0x07, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x04, 0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x69, 0x00, 0x00, 0x00,
+ 0x0c, 0x83, 0x04, 0x08, 0x81, 0x00, 0x00, 0x00, 0x22, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00,
+ 0x1c, 0x83, 0x04, 0x08, 0xac, 0x00, 0x00, 0x00, 0x22, 0x00, 0x00, 0x00, 0x57, 0x00, 0x00, 0x00,
+ 0x2c, 0x83, 0x04, 0x08, 0xdd, 0x00, 0x00, 0x00, 0x12, 0x00, 0x00, 0x00, 0x1a, 0x00, 0x00, 0x00,
+ 0x3c, 0x83, 0x04, 0x08, 0x2e, 0x00, 0x00, 0x00, 0x12, 0x00, 0x00, 0x00, 0x21, 0x00, 0x00, 0x00,
+ 0x4c, 0x83, 0x04, 0x08, 0x7d, 0x00, 0x00, 0x00, 0x22, 0x00, 0x00, 0x00, 0x48, 0x00, 0x00, 0x00,
+ 0x00, 0x85, 0x04, 0x08, 0x04, 0x00, 0x00, 0x00, 0x11, 0x00, 0x0e, 0x00, 0x01, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00, 0x5f, 0x5f, 0x67,
+ 0x6d, 0x6f, 0x6e, 0x5f, 0x73, 0x74, 0x61, 0x72, 0x74, 0x5f, 0x5f, 0x00, 0x6c, 0x69, 0x62, 0x63,
+ 0x2e, 0x73, 0x6f, 0x2e, 0x36, 0x00, 0x70, 0x72, 0x69, 0x6e, 0x74, 0x66, 0x00, 0x5f, 0x5f, 0x63};
+#else
+#define TESTDATA_LEN 3481
+static unsigned char testdata[TESTDATA_LEN] = {
+ 0x23, 0x69, 0x6e, 0x63, 0x6c, 0x75, 0x64, 0x65, 0x20, 0x22, 0x64, 0x62, 0x65, 0x6e, 0x63, 0x68,
+ 0x2e, 0x68, 0x22, 0x0a, 0x0a, 0x23, 0x64, 0x65, 0x66, 0x69, 0x6e, 0x65, 0x20, 0x4d, 0x41, 0x58,
+ 0x5f, 0x46, 0x49, 0x4c, 0x45, 0x53, 0x20, 0x31, 0x30, 0x30, 0x30, 0x0a, 0x0a, 0x73, 0x74, 0x61,
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+ 0x35, 0x30, 0x30, 0x30, 0x29, 0x3b, 0x0a, 0x7d, 0x0a
+};
+#endif
+static unsigned char comprbuf[TESTDATA_LEN];
+static unsigned char decomprbuf[TESTDATA_LEN];
+
+int jffs2_decompress(unsigned char comprtype, unsigned char *cdata_in, 
+		     unsigned char *data_out, __u32 cdatalen, __u32 datalen);
+unsigned char jffs2_compress(unsigned char *data_in, unsigned char *cpage_out, 
+			     __u32 *datalen, __u32 *cdatalen);
+
+int init_module(void ) {
+	unsigned char comprtype;
+	__u32 c, d;
+	int ret;
+
+	printk("Original data: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
+	       testdata[0],testdata[1],testdata[2],testdata[3], 
+	       testdata[4],testdata[5],testdata[6],testdata[7], 
+	       testdata[8],testdata[9],testdata[10],testdata[11], 
+	       testdata[12],testdata[13],testdata[14],testdata[15]); 
+	d = TESTDATA_LEN;
+	c = TESTDATA_LEN;
+	comprtype = jffs2_compress(testdata, comprbuf, &d, &c);
+
+	printk("jffs2_compress used compression type %d. Compressed size %d, uncompressed size %d\n",
+	       comprtype, c, d);
+	printk("Compressed data: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
+	       comprbuf[0],comprbuf[1],comprbuf[2],comprbuf[3], 
+	       comprbuf[4],comprbuf[5],comprbuf[6],comprbuf[7], 
+	       comprbuf[8],comprbuf[9],comprbuf[10],comprbuf[11], 
+	       comprbuf[12],comprbuf[13],comprbuf[14],comprbuf[15]); 
+
+	ret = jffs2_decompress(comprtype, comprbuf, decomprbuf, c, d);
+	printk("jffs2_decompress returned %d\n", ret);
+	printk("Decompressed data:  %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
+	       decomprbuf[0],decomprbuf[1],decomprbuf[2],decomprbuf[3], 
+	       decomprbuf[4],decomprbuf[5],decomprbuf[6],decomprbuf[7], 
+	       decomprbuf[8],decomprbuf[9],decomprbuf[10],decomprbuf[11], 
+	       decomprbuf[12],decomprbuf[13],decomprbuf[14],decomprbuf[15]); 
+	if (memcmp(decomprbuf, testdata, d))
+		printk("Compression and decompression corrupted data\n");
+	else
+		printk("Compression good for %d bytes\n", d);
+	return 1;
+}
diff --git a/fs/jffs2/dir.c b/fs/jffs2/dir.c
new file mode 100644
index 00000000000000..e3fcbc5277f405
--- /dev/null
+++ b/fs/jffs2/dir.c
@@ -0,0 +1,1010 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright (C) 2001 Red Hat, Inc.
+ *
+ * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
+ *
+ * The original JFFS, from which the design for JFFS2 was derived,
+ * was designed and implemented by Axis Communications AB.
+ *
+ * The contents of this file are subject to the Red Hat eCos Public
+ * License Version 1.1 (the "Licence"); you may not use this file
+ * except in compliance with the Licence.  You may obtain a copy of
+ * the Licence at http://www.redhat.com/
+ *
+ * Software distributed under the Licence is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing rights and
+ * limitations under the Licence.
+ *
+ * The Original Code is JFFS2 - Journalling Flash File System, version 2
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in
+ * which case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the RHEPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the RHEPL or the GPL.
+ *
+ * $Id: dir.c,v 1.45.2.8 2003/11/02 13:51:17 dwmw2 Exp $
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/fs.h>
+#include <linux/mtd/compatmac.h> /* For completion */
+#include <linux/jffs2.h>
+#include <linux/jffs2_fs_i.h>
+#include <linux/jffs2_fs_sb.h>
+#include "nodelist.h"
+#include <linux/crc32.h>
+
+static int jffs2_readdir (struct file *, void *, filldir_t);
+
+static int jffs2_create (struct inode *,struct dentry *,int);
+static struct dentry *jffs2_lookup (struct inode *,struct dentry *);
+static int jffs2_link (struct dentry *,struct inode *,struct dentry *);
+static int jffs2_unlink (struct inode *,struct dentry *);
+static int jffs2_symlink (struct inode *,struct dentry *,const char *);
+static int jffs2_mkdir (struct inode *,struct dentry *,int);
+static int jffs2_rmdir (struct inode *,struct dentry *);
+static int jffs2_mknod (struct inode *,struct dentry *,int,int);
+static int jffs2_rename (struct inode *, struct dentry *,
+                        struct inode *, struct dentry *);
+
+struct file_operations jffs2_dir_operations =
+{
+	read:		generic_read_dir,
+	readdir:	jffs2_readdir,
+	ioctl:		jffs2_ioctl,
+	fsync:		jffs2_null_fsync
+};
+
+
+struct inode_operations jffs2_dir_inode_operations =
+{
+	create:		jffs2_create,
+	lookup:		jffs2_lookup,
+	link:		jffs2_link,
+	unlink:		jffs2_unlink,
+	symlink:	jffs2_symlink,
+	mkdir:		jffs2_mkdir,
+	rmdir:		jffs2_rmdir,
+	mknod:		jffs2_mknod,
+	rename:		jffs2_rename,
+	setattr:	jffs2_setattr,
+};
+
+/***********************************************************************/
+
+
+/* We keep the dirent list sorted in increasing order of name hash,
+   and we use the same hash function as the dentries. Makes this 
+   nice and simple
+*/
+static struct dentry *jffs2_lookup(struct inode *dir_i, struct dentry *target)
+{
+	struct jffs2_inode_info *dir_f;
+	struct jffs2_sb_info *c;
+	struct jffs2_full_dirent *fd = NULL, *fd_list;
+	__u32 ino = 0;
+	struct inode *inode = NULL;
+
+	D1(printk(KERN_DEBUG "jffs2_lookup()\n"));
+
+	dir_f = JFFS2_INODE_INFO(dir_i);
+	c = JFFS2_SB_INFO(dir_i->i_sb);
+
+	down(&dir_f->sem);
+
+	/* NB: The 2.2 backport will need to explicitly check for '.' and '..' here */
+	for (fd_list = dir_f->dents; fd_list && fd_list->nhash <= target->d_name.hash; fd_list = fd_list->next) {
+		if (fd_list->nhash == target->d_name.hash && 
+		    (!fd || fd_list->version > fd->version) &&
+		    strlen(fd_list->name) == target->d_name.len &&
+		    !strncmp(fd_list->name, target->d_name.name, target->d_name.len)) {
+			fd = fd_list;
+		}
+	}
+	if (fd)
+		ino = fd->ino;
+	up(&dir_f->sem);
+	if (ino) {
+		inode = iget(dir_i->i_sb, ino);
+		if (!inode) {
+			printk(KERN_WARNING "iget() failed for ino #%u\n", ino);
+			return (ERR_PTR(-EIO));
+		}
+	}
+
+	d_add(target, inode);
+
+	return NULL;
+}
+
+/***********************************************************************/
+
+
+static int jffs2_readdir(struct file *filp, void *dirent, filldir_t filldir)
+{
+	struct jffs2_inode_info *f;
+	struct jffs2_sb_info *c;
+	struct inode *inode = filp->f_dentry->d_inode;
+	struct jffs2_full_dirent *fd;
+	unsigned long offset, curofs;
+
+	D1(printk(KERN_DEBUG "jffs2_readdir() for dir_i #%lu\n", filp->f_dentry->d_inode->i_ino));
+
+	f = JFFS2_INODE_INFO(inode);
+	c = JFFS2_SB_INFO(inode->i_sb);
+
+	offset = filp->f_pos;
+
+	if (offset == 0) {
+		D1(printk(KERN_DEBUG "Dirent 0: \".\", ino #%lu\n", inode->i_ino));
+		if (filldir(dirent, ".", 1, 0, inode->i_ino, DT_DIR) < 0)
+			goto out;
+		offset++;
+	}
+	if (offset == 1) {
+		D1(printk(KERN_DEBUG "Dirent 1: \"..\", ino #%lu\n", filp->f_dentry->d_parent->d_inode->i_ino));
+		if (filldir(dirent, "..", 2, 1, filp->f_dentry->d_parent->d_inode->i_ino, DT_DIR) < 0)
+			goto out;
+		offset++;
+	}
+
+	curofs=1;
+	down(&f->sem);
+	for (fd = f->dents; fd; fd = fd->next) {
+
+		curofs++;
+		/* First loop: curofs = 2; offset = 2 */
+		if (curofs < offset) {
+			D2(printk(KERN_DEBUG "Skipping dirent: \"%s\", ino #%u, type %d, because curofs %ld < offset %ld\n", 
+				  fd->name, fd->ino, fd->type, curofs, offset));
+			continue;
+		}
+		if (!fd->ino) {
+			D2(printk(KERN_DEBUG "Skipping deletion dirent \"%s\"\n", fd->name));
+			offset++;
+			continue;
+		}
+		D2(printk(KERN_DEBUG "Dirent %ld: \"%s\", ino #%u, type %d\n", offset, fd->name, fd->ino, fd->type));
+		if (filldir(dirent, fd->name, strlen(fd->name), offset, fd->ino, fd->type) < 0)
+			break;
+		offset++;
+	}
+	up(&f->sem);
+ out:
+	filp->f_pos = offset;
+	return 0;
+}
+
+/***********************************************************************/
+
+static int jffs2_create(struct inode *dir_i, struct dentry *dentry, int mode)
+{
+	struct jffs2_inode_info *f, *dir_f;
+	struct jffs2_sb_info *c;
+	struct inode *inode;
+	struct jffs2_raw_inode *ri;
+	struct jffs2_raw_dirent *rd;
+	struct jffs2_full_dnode *fn;
+	struct jffs2_full_dirent *fd;
+	int namelen;
+	__u32 alloclen, phys_ofs;
+	__u32 writtenlen;
+	int ret;
+
+	ri = jffs2_alloc_raw_inode();
+	if (!ri)
+		return -ENOMEM;
+	
+	c = JFFS2_SB_INFO(dir_i->i_sb);
+
+	D1(printk(KERN_DEBUG "jffs2_create()\n"));
+
+	/* Try to reserve enough space for both node and dirent. 
+	 * Just the node will do for now, though 
+	 */
+	namelen = dentry->d_name.len;
+	ret = jffs2_reserve_space(c, sizeof(*ri), &phys_ofs, &alloclen, ALLOC_NORMAL);
+	D1(printk(KERN_DEBUG "jffs2_create(): reserved 0x%x bytes\n", alloclen));
+	if (ret) {
+		jffs2_free_raw_inode(ri);
+		return ret;
+	}
+
+	inode = jffs2_new_inode(dir_i, mode, ri);
+
+	if (IS_ERR(inode)) {
+		D1(printk(KERN_DEBUG "jffs2_new_inode() failed\n"));
+		jffs2_free_raw_inode(ri);
+		jffs2_complete_reservation(c);
+		return PTR_ERR(inode);
+	}
+
+	inode->i_op = &jffs2_file_inode_operations;
+	inode->i_fop = &jffs2_file_operations;
+	inode->i_mapping->a_ops = &jffs2_file_address_operations;
+	inode->i_mapping->nrpages = 0;
+
+	f = JFFS2_INODE_INFO(inode);
+
+	ri->data_crc = 0;
+	ri->node_crc = crc32(0, ri, sizeof(*ri)-8);
+
+	fn = jffs2_write_dnode(inode, ri, NULL, 0, phys_ofs, &writtenlen);
+	D1(printk(KERN_DEBUG "jffs2_create created file with mode 0x%x\n", ri->mode));
+	jffs2_free_raw_inode(ri);
+
+	if (IS_ERR(fn)) {
+		D1(printk(KERN_DEBUG "jffs2_write_dnode() failed\n"));
+		/* Eeek. Wave bye bye */
+		up(&f->sem);
+		jffs2_complete_reservation(c);
+		jffs2_clear_inode(inode);
+		return PTR_ERR(fn);
+	}
+	/* No data here. Only a metadata node, which will be 
+	   obsoleted by the first data write
+	*/
+	f->metadata = fn;
+
+	/* Work out where to put the dirent node now. */
+	writtenlen = PAD(writtenlen);
+	phys_ofs += writtenlen;
+	alloclen -= writtenlen;
+	up(&f->sem);
+
+	if (alloclen < sizeof(*rd)+namelen) {
+		/* Not enough space left in this chunk. Get some more */
+		jffs2_complete_reservation(c);
+		ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen, ALLOC_NORMAL);
+		
+		if (ret) {
+			/* Eep. */
+			D1(printk(KERN_DEBUG "jffs2_reserve_space() for dirent failed\n"));
+			jffs2_clear_inode(inode);
+			return ret;
+		}
+	}
+
+	rd = jffs2_alloc_raw_dirent();
+	if (!rd) {
+		/* Argh. Now we treat it like a normal delete */
+		jffs2_complete_reservation(c);
+		jffs2_clear_inode(inode);
+		return -ENOMEM;
+	}
+
+	dir_f = JFFS2_INODE_INFO(dir_i);
+	down(&dir_f->sem);
+
+	rd->magic = JFFS2_MAGIC_BITMASK;
+	rd->nodetype = JFFS2_NODETYPE_DIRENT;
+	rd->totlen = sizeof(*rd) + namelen;
+	rd->hdr_crc = crc32(0, rd, sizeof(struct jffs2_unknown_node)-4);
+
+	rd->pino = dir_i->i_ino;
+	rd->version = ++dir_f->highest_version;
+	rd->ino = inode->i_ino;
+	rd->mctime = CURRENT_TIME;
+	rd->nsize = namelen;
+	rd->type = DT_REG;
+	rd->node_crc = crc32(0, rd, sizeof(*rd)-8);
+	rd->name_crc = crc32(0, dentry->d_name.name, namelen);
+
+	fd = jffs2_write_dirent(dir_i, rd, dentry->d_name.name, namelen, phys_ofs, &writtenlen);
+
+	jffs2_complete_reservation(c);
+	
+	if (IS_ERR(fd)) {
+		/* dirent failed to write. Delete the inode normally 
+		   as if it were the final unlink() */
+		jffs2_free_raw_dirent(rd);
+		up(&dir_f->sem);
+		jffs2_clear_inode(inode);
+		return PTR_ERR(fd);
+	}
+
+	dir_i->i_mtime = dir_i->i_ctime = rd->mctime;
+
+	jffs2_free_raw_dirent(rd);
+
+	/* Link the fd into the inode's list, obsoleting an old
+	   one if necessary. */
+	jffs2_add_fd_to_list(c, fd, &dir_f->dents);
+	up(&dir_f->sem);
+
+	d_instantiate(dentry, inode);
+
+	D1(printk(KERN_DEBUG "jffs2_create: Created ino #%lu with mode %o, nlink %d(%d). nrpages %ld\n",
+		  inode->i_ino, inode->i_mode, inode->i_nlink, f->inocache->nlink, inode->i_mapping->nrpages));
+	return 0;
+}
+
+/***********************************************************************/
+
+static int jffs2_do_unlink(struct inode *dir_i, struct dentry *dentry, int rename)
+{
+	struct jffs2_inode_info *dir_f, *f;
+	struct jffs2_sb_info *c;
+	struct jffs2_raw_dirent *rd;
+	struct jffs2_full_dirent *fd;
+	__u32 alloclen, phys_ofs;
+	int ret;
+
+	c = JFFS2_SB_INFO(dir_i->i_sb);
+
+	rd = jffs2_alloc_raw_dirent();
+	if (!rd)
+		return -ENOMEM;
+
+	ret = jffs2_reserve_space(c, sizeof(*rd)+dentry->d_name.len, &phys_ofs, &alloclen, ALLOC_DELETION);
+	if (ret) {
+		jffs2_free_raw_dirent(rd);
+		return ret;
+	}
+
+	dir_f = JFFS2_INODE_INFO(dir_i);
+	down(&dir_f->sem);
+
+	/* Build a deletion node */
+	rd->magic = JFFS2_MAGIC_BITMASK;
+	rd->nodetype = JFFS2_NODETYPE_DIRENT;
+	rd->totlen = sizeof(*rd) + dentry->d_name.len;
+	rd->hdr_crc = crc32(0, rd, sizeof(struct jffs2_unknown_node)-4);
+
+	rd->pino = dir_i->i_ino;
+	rd->version = ++dir_f->highest_version;
+	rd->ino = 0;
+	rd->mctime = CURRENT_TIME;
+	rd->nsize = dentry->d_name.len;
+	rd->type = DT_UNKNOWN;
+	rd->node_crc = crc32(0, rd, sizeof(*rd)-8);
+	rd->name_crc = crc32(0, dentry->d_name.name, dentry->d_name.len);
+
+	fd = jffs2_write_dirent(dir_i, rd, dentry->d_name.name, dentry->d_name.len, phys_ofs, NULL);
+	
+	jffs2_complete_reservation(c);
+	jffs2_free_raw_dirent(rd);
+
+	if (IS_ERR(fd)) {
+		up(&dir_f->sem);
+		return PTR_ERR(fd);
+	}
+
+	/* File it. This will mark the old one obsolete. */
+	jffs2_add_fd_to_list(c, fd, &dir_f->dents);
+	up(&dir_f->sem);
+	
+	if (!rename) {
+		f = JFFS2_INODE_INFO(dentry->d_inode);
+		down(&f->sem);
+
+		while (f->dents) {
+			/* There can be only deleted ones */
+			fd = f->dents;
+			
+			f->dents = fd->next;
+			
+			if (fd->ino) {
+				printk(KERN_WARNING "Deleting inode #%u with active dentry \"%s\"->ino #%u\n",
+				       f->inocache->ino, fd->name, fd->ino);
+			} else {
+				D1(printk(KERN_DEBUG "Removing deletion dirent for \"%s\" from dir ino #%u\n", fd->name, f->inocache->ino));
+			}
+			jffs2_mark_node_obsolete(c, fd->raw);
+			jffs2_free_full_dirent(fd);
+		}
+		/* Don't oops on unlinking a bad inode */
+		if (f->inocache)
+			f->inocache->nlink--;
+		dentry->d_inode->i_nlink--;
+		up(&f->sem);
+	}
+
+	return 0;
+}
+
+static int jffs2_unlink(struct inode *dir_i, struct dentry *dentry)
+{
+	return jffs2_do_unlink(dir_i, dentry, 0);
+}
+/***********************************************************************/
+
+static int jffs2_do_link (struct dentry *old_dentry, struct inode *dir_i, struct dentry *dentry, int rename)
+{
+	struct jffs2_inode_info *dir_f, *f;
+	struct jffs2_sb_info *c;
+	struct jffs2_raw_dirent *rd;
+	struct jffs2_full_dirent *fd;
+	__u32 alloclen, phys_ofs;
+	int ret;
+
+	c = JFFS2_SB_INFO(dir_i->i_sb);
+
+	rd = jffs2_alloc_raw_dirent();
+	if (!rd)
+		return -ENOMEM;
+
+	ret = jffs2_reserve_space(c, sizeof(*rd)+dentry->d_name.len, &phys_ofs, &alloclen, ALLOC_NORMAL);
+	if (ret) {
+		jffs2_free_raw_dirent(rd);
+		return ret;
+	}
+	
+	dir_f = JFFS2_INODE_INFO(dir_i);
+	down(&dir_f->sem);
+
+	/* Build a deletion node */
+	rd->magic = JFFS2_MAGIC_BITMASK;
+	rd->nodetype = JFFS2_NODETYPE_DIRENT;
+	rd->totlen = sizeof(*rd) + dentry->d_name.len;
+	rd->hdr_crc = crc32(0, rd, sizeof(struct jffs2_unknown_node)-4);
+
+	rd->pino = dir_i->i_ino;
+	rd->version = ++dir_f->highest_version;
+	rd->ino = old_dentry->d_inode->i_ino;
+	rd->mctime = CURRENT_TIME;
+	rd->nsize = dentry->d_name.len;
+
+	/* XXX: This is ugly. */
+	rd->type = (old_dentry->d_inode->i_mode & S_IFMT) >> 12;
+	if (!rd->type) rd->type = DT_REG;
+
+	rd->node_crc = crc32(0, rd, sizeof(*rd)-8);
+	rd->name_crc = crc32(0, dentry->d_name.name, dentry->d_name.len);
+
+	fd = jffs2_write_dirent(dir_i, rd, dentry->d_name.name, dentry->d_name.len, phys_ofs, NULL);
+	
+	jffs2_complete_reservation(c);
+	jffs2_free_raw_dirent(rd);
+
+	if (IS_ERR(fd)) {
+		up(&dir_f->sem);
+		return PTR_ERR(fd);
+	}
+
+	/* File it. This will mark the old one obsolete. */
+	jffs2_add_fd_to_list(c, fd, &dir_f->dents);
+	up(&dir_f->sem);
+
+	if (!rename) {
+		f = JFFS2_INODE_INFO(old_dentry->d_inode);
+		down(&f->sem);
+		old_dentry->d_inode->i_nlink = ++f->inocache->nlink;
+		up(&f->sem);
+	}
+	return 0;
+}
+
+static int jffs2_link (struct dentry *old_dentry, struct inode *dir_i, struct dentry *dentry)
+{
+	int ret;
+
+	/* Can't link a bad inode. */
+	if (!JFFS2_INODE_INFO(old_dentry->d_inode)->inocache)
+		return -EIO;
+
+	if (S_ISDIR(old_dentry->d_inode->i_mode))
+		return -EPERM;
+
+	ret = jffs2_do_link(old_dentry, dir_i, dentry, 0);
+	if (!ret) {
+		d_instantiate(dentry, old_dentry->d_inode);
+		atomic_inc(&old_dentry->d_inode->i_count);
+	}
+	return ret;
+}
+
+/***********************************************************************/
+
+static int jffs2_symlink (struct inode *dir_i, struct dentry *dentry, const char *target)
+{
+	struct jffs2_inode_info *f, *dir_f;
+	struct jffs2_sb_info *c;
+	struct inode *inode;
+	struct jffs2_raw_inode *ri;
+	struct jffs2_raw_dirent *rd;
+	struct jffs2_full_dnode *fn;
+	struct jffs2_full_dirent *fd;
+	int namelen;
+	__u32 alloclen, phys_ofs;
+	__u32 writtenlen;
+	int ret;
+
+	/* FIXME: If you care. We'd need to use frags for the target
+	   if it grows much more than this */
+	if (strlen(target) > 254)
+		return -EINVAL;
+
+	ri = jffs2_alloc_raw_inode();
+
+	if (!ri)
+		return -ENOMEM;
+	
+	c = JFFS2_SB_INFO(dir_i->i_sb);
+	
+	/* Try to reserve enough space for both node and dirent. 
+	 * Just the node will do for now, though 
+	 */
+	namelen = dentry->d_name.len;
+	ret = jffs2_reserve_space(c, sizeof(*ri) + strlen(target), &phys_ofs, &alloclen, ALLOC_NORMAL);
+
+	if (ret) {
+		jffs2_free_raw_inode(ri);
+		return ret;
+	}
+
+	inode = jffs2_new_inode(dir_i, S_IFLNK | S_IRWXUGO, ri);
+
+	if (IS_ERR(inode)) {
+		jffs2_free_raw_inode(ri);
+		jffs2_complete_reservation(c);
+		return PTR_ERR(inode);
+	}
+
+	inode->i_op = &jffs2_symlink_inode_operations;
+
+	f = JFFS2_INODE_INFO(inode);
+
+	inode->i_size = ri->isize = ri->dsize = ri->csize = strlen(target);
+	ri->totlen = sizeof(*ri) + ri->dsize;
+	ri->hdr_crc = crc32(0, ri, sizeof(struct jffs2_unknown_node)-4);
+
+	ri->compr = JFFS2_COMPR_NONE;
+	ri->data_crc = crc32(0, target, strlen(target));
+	ri->node_crc = crc32(0, ri, sizeof(*ri)-8);
+	
+	fn = jffs2_write_dnode(inode, ri, target, strlen(target), phys_ofs, &writtenlen);
+
+	jffs2_free_raw_inode(ri);
+
+	if (IS_ERR(fn)) {
+		/* Eeek. Wave bye bye */
+		up(&f->sem);
+		jffs2_complete_reservation(c);
+		jffs2_clear_inode(inode);
+		return PTR_ERR(fn);
+	}
+	/* No data here. Only a metadata node, which will be 
+	   obsoleted by the first data write
+	*/
+	f->metadata = fn;
+	up(&f->sem);
+
+	/* Work out where to put the dirent node now. */
+	writtenlen = (writtenlen+3)&~3;
+	phys_ofs += writtenlen;
+	alloclen -= writtenlen;
+
+	if (alloclen < sizeof(*rd)+namelen) {
+		/* Not enough space left in this chunk. Get some more */
+		jffs2_complete_reservation(c);
+		ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen, ALLOC_NORMAL);
+		if (ret) {
+			/* Eep. */
+			jffs2_clear_inode(inode);
+			return ret;
+		}
+	}
+
+	rd = jffs2_alloc_raw_dirent();
+	if (!rd) {
+		/* Argh. Now we treat it like a normal delete */
+		jffs2_complete_reservation(c);
+		jffs2_clear_inode(inode);
+		return -ENOMEM;
+	}
+
+	dir_f = JFFS2_INODE_INFO(dir_i);
+	down(&dir_f->sem);
+
+	rd->magic = JFFS2_MAGIC_BITMASK;
+	rd->nodetype = JFFS2_NODETYPE_DIRENT;
+	rd->totlen = sizeof(*rd) + namelen;
+	rd->hdr_crc = crc32(0, rd, sizeof(struct jffs2_unknown_node)-4);
+
+	rd->pino = dir_i->i_ino;
+	rd->version = ++dir_f->highest_version;
+	rd->ino = inode->i_ino;
+	rd->mctime = CURRENT_TIME;
+	rd->nsize = namelen;
+	rd->type = DT_LNK;
+	rd->node_crc = crc32(0, rd, sizeof(*rd)-8);
+	rd->name_crc = crc32(0, dentry->d_name.name, namelen);
+
+	fd = jffs2_write_dirent(dir_i, rd, dentry->d_name.name, namelen, phys_ofs, &writtenlen);
+	
+	jffs2_complete_reservation(c);
+	
+	if (IS_ERR(fd)) {
+		/* dirent failed to write. Delete the inode normally 
+		   as if it were the final unlink() */
+		jffs2_free_raw_dirent(rd);
+		up(&dir_f->sem);
+		jffs2_clear_inode(inode);
+		return PTR_ERR(fd);
+	}
+
+	dir_i->i_mtime = dir_i->i_ctime = rd->mctime;
+
+	jffs2_free_raw_dirent(rd);
+
+	/* Link the fd into the inode's list, obsoleting an old
+	   one if necessary. */
+	jffs2_add_fd_to_list(c, fd, &dir_f->dents);
+	up(&dir_f->sem);
+
+	d_instantiate(dentry, inode);
+	return 0;
+}
+
+
+static int jffs2_mkdir (struct inode *dir_i, struct dentry *dentry, int mode)
+{
+	struct jffs2_inode_info *f, *dir_f;
+	struct jffs2_sb_info *c;
+	struct inode *inode;
+	struct jffs2_raw_inode *ri;
+	struct jffs2_raw_dirent *rd;
+	struct jffs2_full_dnode *fn;
+	struct jffs2_full_dirent *fd;
+	int namelen;
+	__u32 alloclen, phys_ofs;
+	__u32 writtenlen;
+	int ret;
+
+	mode |= S_IFDIR;
+
+	ri = jffs2_alloc_raw_inode();
+	if (!ri)
+		return -ENOMEM;
+	
+	c = JFFS2_SB_INFO(dir_i->i_sb);
+
+	/* Try to reserve enough space for both node and dirent. 
+	 * Just the node will do for now, though 
+	 */
+	namelen = dentry->d_name.len;
+	ret = jffs2_reserve_space(c, sizeof(*ri), &phys_ofs, &alloclen, ALLOC_NORMAL);
+
+	if (ret) {
+		jffs2_free_raw_inode(ri);
+		return ret;
+	}
+
+	inode = jffs2_new_inode(dir_i, mode, ri);
+
+	if (IS_ERR(inode)) {
+		jffs2_free_raw_inode(ri);
+		jffs2_complete_reservation(c);
+		return PTR_ERR(inode);
+	}
+
+	inode->i_op = &jffs2_dir_inode_operations;
+	inode->i_fop = &jffs2_dir_operations;
+
+	f = JFFS2_INODE_INFO(inode);
+
+	ri->data_crc = 0;
+	ri->node_crc = crc32(0, ri, sizeof(*ri)-8);
+	
+	fn = jffs2_write_dnode(inode, ri, NULL, 0, phys_ofs, &writtenlen);
+
+	jffs2_free_raw_inode(ri);
+
+	if (IS_ERR(fn)) {
+		/* Eeek. Wave bye bye */
+		up(&f->sem);
+		jffs2_complete_reservation(c);
+		jffs2_clear_inode(inode);
+		return PTR_ERR(fn);
+	}
+	/* No data here. Only a metadata node, which will be 
+	   obsoleted by the first data write
+	*/
+	f->metadata = fn;
+	up(&f->sem);
+
+	/* Work out where to put the dirent node now. */
+	writtenlen = PAD(writtenlen);
+	phys_ofs += writtenlen;
+	alloclen -= writtenlen;
+
+	if (alloclen < sizeof(*rd)+namelen) {
+		/* Not enough space left in this chunk. Get some more */
+		jffs2_complete_reservation(c);
+		ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen, ALLOC_NORMAL);
+		if (ret) {
+			/* Eep. */
+			jffs2_clear_inode(inode);
+			return ret;
+		}
+	}
+	
+	rd = jffs2_alloc_raw_dirent();
+	if (!rd) {
+		/* Argh. Now we treat it like a normal delete */
+		jffs2_complete_reservation(c);
+		jffs2_clear_inode(inode);
+		return -ENOMEM;
+	}
+
+	dir_f = JFFS2_INODE_INFO(dir_i);
+	down(&dir_f->sem);
+
+	rd->magic = JFFS2_MAGIC_BITMASK;
+	rd->nodetype = JFFS2_NODETYPE_DIRENT;
+	rd->totlen = sizeof(*rd) + namelen;
+	rd->hdr_crc = crc32(0, rd, sizeof(struct jffs2_unknown_node)-4);
+
+	rd->pino = dir_i->i_ino;
+	rd->version = ++dir_f->highest_version;
+	rd->ino = inode->i_ino;
+	rd->mctime = CURRENT_TIME;
+	rd->nsize = namelen;
+	rd->type = DT_DIR;
+	rd->node_crc = crc32(0, rd, sizeof(*rd)-8);
+	rd->name_crc = crc32(0, dentry->d_name.name, namelen);
+
+	fd = jffs2_write_dirent(dir_i, rd, dentry->d_name.name, namelen, phys_ofs, &writtenlen);
+	
+	jffs2_complete_reservation(c);
+	
+	if (IS_ERR(fd)) {
+		/* dirent failed to write. Delete the inode normally 
+		   as if it were the final unlink() */
+		jffs2_free_raw_dirent(rd);
+		up(&dir_f->sem);
+		jffs2_clear_inode(inode);
+		return PTR_ERR(fd);
+	}
+
+	dir_i->i_mtime = dir_i->i_ctime = rd->mctime;
+
+	jffs2_free_raw_dirent(rd);
+
+	/* Link the fd into the inode's list, obsoleting an old
+	   one if necessary. */
+	jffs2_add_fd_to_list(c, fd, &dir_f->dents);
+	up(&dir_f->sem);
+
+	d_instantiate(dentry, inode);
+	return 0;
+}
+
+static int jffs2_rmdir (struct inode *dir_i, struct dentry *dentry)
+{
+	struct jffs2_inode_info *f = JFFS2_INODE_INFO(dentry->d_inode);
+	struct jffs2_full_dirent *fd;
+
+	for (fd = f->dents ; fd; fd = fd->next) {
+		if (fd->ino)
+			return -ENOTEMPTY;
+	}
+	return jffs2_unlink(dir_i, dentry);
+}
+
+static int jffs2_mknod (struct inode *dir_i, struct dentry *dentry, int mode, int rdev)
+{
+	struct jffs2_inode_info *f, *dir_f;
+	struct jffs2_sb_info *c;
+	struct inode *inode;
+	struct jffs2_raw_inode *ri;
+	struct jffs2_raw_dirent *rd;
+	struct jffs2_full_dnode *fn;
+	struct jffs2_full_dirent *fd;
+	int namelen;
+	unsigned short dev;
+	int devlen = 0;
+	__u32 alloclen, phys_ofs;
+	__u32 writtenlen;
+	int ret;
+
+	ri = jffs2_alloc_raw_inode();
+	if (!ri)
+		return -ENOMEM;
+	
+	c = JFFS2_SB_INFO(dir_i->i_sb);
+	
+	if (S_ISBLK(mode) || S_ISCHR(mode)) {
+		dev = (MAJOR(to_kdev_t(rdev)) << 8) | MINOR(to_kdev_t(rdev));
+		devlen = sizeof(dev);
+	}
+	
+	/* Try to reserve enough space for both node and dirent. 
+	 * Just the node will do for now, though 
+	 */
+	namelen = dentry->d_name.len;
+	ret = jffs2_reserve_space(c, sizeof(*ri) + devlen, &phys_ofs, &alloclen, ALLOC_NORMAL);
+
+	if (ret) {
+		jffs2_free_raw_inode(ri);
+		return ret;
+	}
+
+	inode = jffs2_new_inode(dir_i, mode, ri);
+
+	if (IS_ERR(inode)) {
+		jffs2_free_raw_inode(ri);
+		jffs2_complete_reservation(c);
+		return PTR_ERR(inode);
+	}
+	inode->i_op = &jffs2_file_inode_operations;
+	init_special_inode(inode, inode->i_mode, rdev);
+
+	f = JFFS2_INODE_INFO(inode);
+
+	ri->dsize = ri->csize = devlen;
+	ri->totlen = sizeof(*ri) + ri->csize;
+	ri->hdr_crc = crc32(0, ri, sizeof(struct jffs2_unknown_node)-4);
+
+	ri->compr = JFFS2_COMPR_NONE;
+	ri->data_crc = crc32(0, &dev, devlen);
+	ri->node_crc = crc32(0, ri, sizeof(*ri)-8);
+	
+	fn = jffs2_write_dnode(inode, ri, (char *)&dev, devlen, phys_ofs, &writtenlen);
+
+	jffs2_free_raw_inode(ri);
+
+	if (IS_ERR(fn)) {
+		/* Eeek. Wave bye bye */
+		up(&f->sem);
+		jffs2_complete_reservation(c);
+		jffs2_clear_inode(inode);
+		return PTR_ERR(fn);
+	}
+	/* No data here. Only a metadata node, which will be 
+	   obsoleted by the first data write
+	*/
+	f->metadata = fn;
+	up(&f->sem);
+
+	/* Work out where to put the dirent node now. */
+	writtenlen = (writtenlen+3)&~3;
+	phys_ofs += writtenlen;
+	alloclen -= writtenlen;
+
+	if (alloclen < sizeof(*rd)+namelen) {
+		/* Not enough space left in this chunk. Get some more */
+		jffs2_complete_reservation(c);
+		ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen, ALLOC_NORMAL);
+		if (ret) {
+			/* Eep. */
+			jffs2_clear_inode(inode);
+			return ret;
+		}
+	}
+
+	rd = jffs2_alloc_raw_dirent();
+	if (!rd) {
+		/* Argh. Now we treat it like a normal delete */
+		jffs2_complete_reservation(c);
+		jffs2_clear_inode(inode);
+		return -ENOMEM;
+	}
+
+	dir_f = JFFS2_INODE_INFO(dir_i);
+	down(&dir_f->sem);
+
+	rd->magic = JFFS2_MAGIC_BITMASK;
+	rd->nodetype = JFFS2_NODETYPE_DIRENT;
+	rd->totlen = sizeof(*rd) + namelen;
+	rd->hdr_crc = crc32(0, rd, sizeof(struct jffs2_unknown_node)-4);
+
+	rd->pino = dir_i->i_ino;
+	rd->version = ++dir_f->highest_version;
+	rd->ino = inode->i_ino;
+	rd->mctime = CURRENT_TIME;
+	rd->nsize = namelen;
+
+	/* XXX: This is ugly. */
+	rd->type = (mode & S_IFMT) >> 12;
+
+	rd->node_crc = crc32(0, rd, sizeof(*rd)-8);
+	rd->name_crc = crc32(0, dentry->d_name.name, namelen);
+
+	fd = jffs2_write_dirent(dir_i, rd, dentry->d_name.name, namelen, phys_ofs, &writtenlen);
+	
+	jffs2_complete_reservation(c);
+	
+	if (IS_ERR(fd)) {
+		/* dirent failed to write. Delete the inode normally 
+		   as if it were the final unlink() */
+		jffs2_free_raw_dirent(rd);
+		up(&dir_f->sem);
+		jffs2_clear_inode(inode);
+		return PTR_ERR(fd);
+	}
+
+	dir_i->i_mtime = dir_i->i_ctime = rd->mctime;
+
+	jffs2_free_raw_dirent(rd);
+
+	/* Link the fd into the inode's list, obsoleting an old
+	   one if necessary. */
+	jffs2_add_fd_to_list(c, fd, &dir_f->dents);
+	up(&dir_f->sem);
+
+	d_instantiate(dentry, inode);
+
+	return 0;
+}
+
+static int jffs2_rename (struct inode *old_dir_i, struct dentry *old_dentry,
+                        struct inode *new_dir_i, struct dentry *new_dentry)
+{
+	int ret;
+	struct jffs2_inode_info *victim_f = NULL;
+
+	/* The VFS will check for us and prevent trying to rename a 
+	 * file over a directory and vice versa, but if it's a directory,
+	 * the VFS can't check whether the victim is empty. The filesystem
+	 * needs to do that for itself.
+	 */
+	if (new_dentry->d_inode) {
+		victim_f = JFFS2_INODE_INFO(new_dentry->d_inode);
+		if (S_ISDIR(new_dentry->d_inode->i_mode)) {
+			struct jffs2_full_dirent *fd;
+
+			down(&victim_f->sem);
+			for (fd = victim_f->dents; fd; fd = fd->next) {
+				if (fd->ino) {
+					up(&victim_f->sem);
+					return -ENOTEMPTY;
+				}
+			}
+			up(&victim_f->sem);
+		}
+	}
+
+	/* XXX: We probably ought to alloc enough space for
+	   both nodes at the same time. Writing the new link, 
+	   then getting -ENOSPC, is quite bad :)
+	*/
+
+	/* Make a hard link */
+	ret = jffs2_do_link(old_dentry, new_dir_i, new_dentry, 1);
+	if (ret)
+		return ret;
+
+	if (victim_f) {
+		/* There was a victim. Kill it off nicely */
+		new_dentry->d_inode->i_nlink--;
+		/* Don't oops if the victim was a dirent pointing to an
+		   inode which didn't exist. */
+		if (victim_f->inocache) {
+			down(&victim_f->sem);
+			victim_f->inocache->nlink--;
+			up(&victim_f->sem);
+		}
+	}
+
+	/* Unlink the original */
+	ret = jffs2_do_unlink(old_dir_i, old_dentry, 1);
+	
+	if (ret) {
+		/* Oh shit. We really ought to make a single node which can do both atomically */
+		struct jffs2_inode_info *f = JFFS2_INODE_INFO(old_dentry->d_inode);
+		down(&f->sem);
+		if (f->inocache)
+			old_dentry->d_inode->i_nlink = f->inocache->nlink++;
+		up(&f->sem);
+		       
+		printk(KERN_NOTICE "jffs2_rename(): Link succeeded, unlink failed (err %d). You now have a hard link\n", ret);
+		/* Might as well let the VFS know */
+		d_instantiate(new_dentry, old_dentry->d_inode);
+		atomic_inc(&old_dentry->d_inode->i_count);
+	}
+	return ret;
+}
+
diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c
new file mode 100644
index 00000000000000..b10013e47fa404
--- /dev/null
+++ b/fs/jffs2/erase.c
@@ -0,0 +1,373 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright (C) 2001 Red Hat, Inc.
+ *
+ * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
+ *
+ * The original JFFS, from which the design for JFFS2 was derived,
+ * was designed and implemented by Axis Communications AB.
+ *
+ * The contents of this file are subject to the Red Hat eCos Public
+ * License Version 1.1 (the "Licence"); you may not use this file
+ * except in compliance with the Licence.  You may obtain a copy of
+ * the Licence at http://www.redhat.com/
+ *
+ * Software distributed under the Licence is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing rights and
+ * limitations under the Licence.
+ *
+ * The Original Code is JFFS2 - Journalling Flash File System, version 2
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in
+ * which case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the RHEPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the RHEPL or the GPL.
+ *
+ * $Id: erase.c,v 1.24.2.1 2003/11/02 13:51:17 dwmw2 Exp $
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/mtd/mtd.h>
+#include <linux/jffs2.h>
+#include <linux/interrupt.h>
+#include "nodelist.h"
+#include <linux/crc32.h>
+
+struct erase_priv_struct {
+	struct jffs2_eraseblock *jeb;
+	struct jffs2_sb_info *c;
+};
+      
+static void jffs2_erase_callback(struct erase_info *);
+static void jffs2_free_all_node_refs(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
+
+void jffs2_erase_block(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb)
+{
+	struct erase_info *instr;
+	int ret;
+
+	instr = kmalloc(sizeof(struct erase_info) + sizeof(struct erase_priv_struct), GFP_KERNEL);
+	if (!instr) {
+		printk(KERN_WARNING "kmalloc for struct erase_info in jffs2_erase_block failed. Refiling block for later\n");
+		spin_lock_bh(&c->erase_completion_lock);
+		list_del(&jeb->list);
+		list_add(&jeb->list, &c->erase_pending_list);
+		c->erasing_size -= c->sector_size;
+		spin_unlock_bh(&c->erase_completion_lock);
+		return;
+	}
+
+	memset(instr, 0, sizeof(*instr));
+
+	instr->mtd = c->mtd;
+	instr->addr = jeb->offset;
+	instr->len = c->sector_size;
+	instr->callback = jffs2_erase_callback;
+	instr->priv = (unsigned long)(&instr[1]);
+	
+	((struct erase_priv_struct *)instr->priv)->jeb = jeb;
+	((struct erase_priv_struct *)instr->priv)->c = c;
+
+	ret = c->mtd->erase(c->mtd, instr);
+	if (!ret) {
+		return;
+	}
+	if (ret == -ENOMEM || ret == -EAGAIN) {
+		/* Erase failed immediately. Refile it on the list */
+		D1(printk(KERN_DEBUG "Erase at 0x%08x failed: %d. Refiling on erase_pending_list\n", jeb->offset, ret));
+		spin_lock_bh(&c->erase_completion_lock);
+		list_del(&jeb->list);
+		list_add(&jeb->list, &c->erase_pending_list);
+		c->erasing_size -= c->sector_size;
+		spin_unlock_bh(&c->erase_completion_lock);
+		kfree(instr);
+		return;
+	}
+
+	if (ret == -EROFS) 
+		printk(KERN_WARNING "Erase at 0x%08x failed immediately: -EROFS. Is the sector locked?\n", jeb->offset);
+	else
+		printk(KERN_WARNING "Erase at 0x%08x failed immediately: errno %d\n", jeb->offset, ret);
+	spin_lock_bh(&c->erase_completion_lock);
+	list_del(&jeb->list);
+	list_add(&jeb->list, &c->bad_list);
+	c->nr_erasing_blocks--;
+	c->bad_size += c->sector_size;
+	c->erasing_size -= c->sector_size;
+	spin_unlock_bh(&c->erase_completion_lock);
+	wake_up(&c->erase_wait);
+	kfree(instr);
+}
+
+void jffs2_erase_pending_blocks(struct jffs2_sb_info *c)
+{
+	struct jffs2_eraseblock *jeb;
+
+	spin_lock_bh(&c->erase_completion_lock);
+	while (!list_empty(&c->erase_pending_list)) {
+
+		jeb = list_entry(c->erase_pending_list.next, struct jffs2_eraseblock, list);
+
+		D1(printk(KERN_DEBUG "Starting erase of pending block 0x%08x\n", jeb->offset));
+
+		list_del(&jeb->list);
+		c->erasing_size += c->sector_size;
+		c->free_size -= jeb->free_size;
+		c->used_size -= jeb->used_size;
+		c->dirty_size -= jeb->dirty_size;
+		jeb->used_size = jeb->dirty_size = jeb->free_size = 0;
+		jffs2_free_all_node_refs(c, jeb);
+		list_add(&jeb->list, &c->erasing_list);
+		spin_unlock_bh(&c->erase_completion_lock);
+		
+		jffs2_erase_block(c, jeb);
+		/* Be nice */
+		if (current->need_resched)
+			schedule();
+		spin_lock_bh(&c->erase_completion_lock);
+	}
+	spin_unlock_bh(&c->erase_completion_lock);
+	D1(printk(KERN_DEBUG "jffs2_erase_pending_blocks completed\n"));
+}
+
+
+static void jffs2_erase_callback(struct erase_info *instr)
+{
+	struct erase_priv_struct *priv = (void *)instr->priv;
+
+	if(instr->state != MTD_ERASE_DONE) {
+		printk(KERN_WARNING "Erase at 0x%08x finished, but state != MTD_ERASE_DONE. State is 0x%x instead.\n", instr->addr, instr->state);
+		spin_lock(&priv->c->erase_completion_lock);
+		priv->c->erasing_size -= priv->c->sector_size;
+		priv->c->bad_size += priv->c->sector_size;
+		list_del(&priv->jeb->list);
+		list_add(&priv->jeb->list, &priv->c->bad_list);
+		priv->c->nr_erasing_blocks--;
+		spin_unlock(&priv->c->erase_completion_lock);
+		wake_up(&priv->c->erase_wait);
+	} else {
+		D1(printk(KERN_DEBUG "Erase completed successfully at 0x%08x\n", instr->addr));
+		spin_lock(&priv->c->erase_completion_lock);
+		list_del(&priv->jeb->list);
+		list_add_tail(&priv->jeb->list, &priv->c->erase_complete_list);
+		spin_unlock(&priv->c->erase_completion_lock);
+	}	
+	/* Make sure someone picks up the block off the erase_complete list */
+	OFNI_BS_2SFFJ(priv->c)->s_dirt = 1;
+	kfree(instr);
+}
+
+/* Hmmm. Maybe we should accept the extra space it takes and make
+   this a standard doubly-linked list? */
+static inline void jffs2_remove_node_refs_from_ino_list(struct jffs2_sb_info *c,
+			struct jffs2_raw_node_ref *ref, struct jffs2_eraseblock *jeb)
+{
+	struct jffs2_inode_cache *ic = NULL;
+	struct jffs2_raw_node_ref **prev;
+
+	prev = &ref->next_in_ino;
+
+	/* Walk the inode's list once, removing any nodes from this eraseblock */
+	while (1) {
+		if (!(*prev)->next_in_ino) {
+			/* We're looking at the jffs2_inode_cache, which is 
+			   at the end of the linked list. Stash it and continue
+			   from the beginning of the list */
+			ic = (struct jffs2_inode_cache *)(*prev);
+			prev = &ic->nodes;
+			continue;
+		} 
+
+		if (((*prev)->flash_offset & ~(c->sector_size -1)) == jeb->offset) {
+			/* It's in the block we're erasing */
+			struct jffs2_raw_node_ref *this;
+
+			this = *prev;
+			*prev = this->next_in_ino;
+			this->next_in_ino = NULL;
+
+			if (this == ref)
+				break;
+
+			continue;
+		}
+		/* Not to be deleted. Skip */
+		prev = &((*prev)->next_in_ino);
+	}
+
+	/* PARANOIA */
+	if (!ic) {
+		printk(KERN_WARNING "inode_cache not found in remove_node_refs()!!\n");
+		return;
+	}
+
+	D1(printk(KERN_DEBUG "Removed nodes in range 0x%08x-0x%08x from ino #%u\n",
+		  jeb->offset, jeb->offset + c->sector_size, ic->ino));
+
+	D2({
+		int i=0;
+		struct jffs2_raw_node_ref *this;
+		printk(KERN_DEBUG "After remove_node_refs_from_ino_list: \n" KERN_DEBUG);
+
+		this = ic->nodes;
+	   
+		while(this) {
+			printk( "0x%08x(%d)->", this->flash_offset & ~3, this->flash_offset &3);
+			if (++i == 5) {
+				printk("\n" KERN_DEBUG);
+				i=0;
+			}
+			this = this->next_in_ino;
+		}
+		printk("\n");
+	});
+
+	if (ic->nodes == (void *)ic) {
+		D1(printk(KERN_DEBUG "inocache for ino #%u is all gone now. Freeing\n", ic->ino));
+		jffs2_del_ino_cache(c, ic);
+		jffs2_free_inode_cache(ic);
+	}
+}
+
+static void jffs2_free_all_node_refs(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb)
+{
+	struct jffs2_raw_node_ref *ref;
+	D1(printk(KERN_DEBUG "Freeing all node refs for eraseblock offset 0x%08x\n", jeb->offset));
+	while(jeb->first_node) {
+		ref = jeb->first_node;
+		jeb->first_node = ref->next_phys;
+		
+		/* Remove from the inode-list */
+		if (ref->next_in_ino)
+			jffs2_remove_node_refs_from_ino_list(c, ref, jeb);
+		/* else it was a non-inode node or already removed, so don't bother */
+
+		jffs2_free_raw_node_ref(ref);
+	}
+	jeb->last_node = NULL;
+}
+
+void jffs2_erase_pending_trigger(struct jffs2_sb_info *c)
+{
+	OFNI_BS_2SFFJ(c)->s_dirt = 1;
+}
+
+void jffs2_mark_erased_blocks(struct jffs2_sb_info *c)
+{
+	static struct jffs2_unknown_node marker = {JFFS2_MAGIC_BITMASK, JFFS2_NODETYPE_CLEANMARKER, sizeof(struct jffs2_unknown_node)};
+	struct jffs2_eraseblock *jeb;
+	struct jffs2_raw_node_ref *marker_ref;
+	unsigned char *ebuf;
+	ssize_t retlen;
+	int ret;
+
+	marker.hdr_crc = crc32(0, &marker, sizeof(struct jffs2_unknown_node)-4);
+
+	spin_lock_bh(&c->erase_completion_lock);
+	while (!list_empty(&c->erase_complete_list)) {
+		jeb = list_entry(c->erase_complete_list.next, struct jffs2_eraseblock, list);
+		list_del(&jeb->list);
+		spin_unlock_bh(&c->erase_completion_lock);
+
+		marker_ref = jffs2_alloc_raw_node_ref();
+		if (!marker_ref) {
+			printk(KERN_WARNING "Failed to allocate raw node ref for clean marker\n");
+			/* Come back later */
+			jffs2_erase_pending_trigger(c);
+			return;
+		}
+
+		ebuf = kmalloc(PAGE_SIZE, GFP_KERNEL);
+		if (!ebuf) {
+			printk(KERN_WARNING "Failed to allocate page buffer for verifying erase at 0x%08x. Assuming it worked\n", jeb->offset);
+		} else {
+			__u32 ofs = jeb->offset;
+
+			D1(printk(KERN_DEBUG "Verifying erase at 0x%08x\n", jeb->offset));
+			while(ofs < jeb->offset + c->sector_size) {
+				__u32 readlen = min((__u32)PAGE_SIZE, jeb->offset + c->sector_size - ofs);
+				int i;
+
+				ret = c->mtd->read(c->mtd, ofs, readlen, &retlen, ebuf);
+				if (ret < 0) {
+					printk(KERN_WARNING "Read of newly-erased block at 0x%08x failed: %d. Putting on bad_list\n", ofs, ret);
+					goto bad;
+				}
+				if (retlen != readlen) {
+					printk(KERN_WARNING "Short read from newly-erased block at 0x%08x. Wanted %d, got %d\n", ofs, readlen, retlen);
+					goto bad;
+				}
+				for (i=0; i<readlen; i += sizeof(unsigned long)) {
+					/* It's OK. We know it's properly aligned */
+					unsigned long datum = *(unsigned long *)(&ebuf[i]);
+					if (datum + 1) {
+						printk(KERN_WARNING "Newly-erased block contained word 0x%lx at offset 0x%08x\n", datum, ofs + i);
+					bad: 
+						jffs2_free_raw_node_ref(marker_ref);
+						kfree(ebuf);
+					bad2:
+						spin_lock_bh(&c->erase_completion_lock);
+						c->erasing_size -= c->sector_size;
+						c->bad_size += c->sector_size;
+
+						list_add_tail(&jeb->list, &c->bad_list);
+						c->nr_erasing_blocks--;
+						spin_unlock_bh(&c->erase_completion_lock);
+						wake_up(&c->erase_wait);
+						return;
+					}
+				}
+				ofs += readlen;
+			}
+			kfree(ebuf);
+		}
+					
+		/* Write the erase complete marker */	
+		D1(printk(KERN_DEBUG "Writing erased marker to block at 0x%08x\n", jeb->offset));
+		ret = c->mtd->write(c->mtd, jeb->offset, sizeof(marker), &retlen, (char *)&marker);
+		if (ret) {
+			printk(KERN_WARNING "Write clean marker to block at 0x%08x failed: %d\n",
+			       jeb->offset, ret);
+			goto bad2;
+		}
+		if (retlen != sizeof(marker)) {
+			printk(KERN_WARNING "Short write to newly-erased block at 0x%08x: Wanted %d, got %d\n",
+			       jeb->offset, sizeof(marker), retlen);
+			goto bad2;
+		}
+
+		marker_ref->next_in_ino = NULL;
+		marker_ref->next_phys = NULL;
+		marker_ref->flash_offset = jeb->offset;
+		marker_ref->totlen = PAD(sizeof(marker));
+
+		jeb->first_node = jeb->last_node = marker_ref;
+
+		jeb->free_size = c->sector_size - marker_ref->totlen;
+		jeb->used_size = marker_ref->totlen;
+		jeb->dirty_size = 0;
+
+		spin_lock_bh(&c->erase_completion_lock);
+		c->erasing_size -= c->sector_size;
+		c->free_size += jeb->free_size;
+		c->used_size += jeb->used_size;
+
+		ACCT_SANITY_CHECK(c,jeb);
+		ACCT_PARANOIA_CHECK(jeb);
+
+		list_add_tail(&jeb->list, &c->free_list);
+		c->nr_erasing_blocks--;
+		c->nr_free_blocks++;
+		wake_up(&c->erase_wait);
+	}
+	spin_unlock_bh(&c->erase_completion_lock);
+}
diff --git a/fs/jffs2/file.c b/fs/jffs2/file.c
new file mode 100644
index 00000000000000..36eb32ba435065
--- /dev/null
+++ b/fs/jffs2/file.c
@@ -0,0 +1,557 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright (C) 2001 Red Hat, Inc.
+ *
+ * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
+ *
+ * The original JFFS, from which the design for JFFS2 was derived,
+ * was designed and implemented by Axis Communications AB.
+ *
+ * The contents of this file are subject to the Red Hat eCos Public
+ * License Version 1.1 (the "Licence"); you may not use this file
+ * except in compliance with the Licence.  You may obtain a copy of
+ * the Licence at http://www.redhat.com/
+ *
+ * Software distributed under the Licence is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing rights and
+ * limitations under the Licence.
+ *
+ * The Original Code is JFFS2 - Journalling Flash File System, version 2
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in
+ * which case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the RHEPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the RHEPL or the GPL.
+ *
+ * $Id: file.c,v 1.58.2.7 2003/11/02 13:51:17 dwmw2 Exp $
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/mtd/compatmac.h> /* for min() */
+#include <linux/slab.h>
+#include <linux/fs.h>
+#include <linux/pagemap.h>
+#include <linux/jffs2.h>
+#include "nodelist.h"
+#include <linux/crc32.h>
+
+extern int generic_file_open(struct inode *, struct file *) __attribute__((weak));
+extern loff_t generic_file_llseek(struct file *file, loff_t offset, int origin) __attribute__((weak));
+
+
+int jffs2_null_fsync(struct file *filp, struct dentry *dentry, int datasync)
+{
+	/* Move along. Nothing to see here */
+	return 0;
+}
+
+struct file_operations jffs2_file_operations =
+{
+	llseek:		generic_file_llseek,
+	open:		generic_file_open,
+	read:		generic_file_read,
+	write:		generic_file_write,
+	ioctl:		jffs2_ioctl,
+	mmap:		generic_file_mmap,
+	fsync:		jffs2_null_fsync
+};
+
+/* jffs2_file_inode_operations */
+
+struct inode_operations jffs2_file_inode_operations =
+{
+	setattr:	jffs2_setattr
+};
+
+struct address_space_operations jffs2_file_address_operations =
+{
+	readpage:	jffs2_readpage,
+	prepare_write:	jffs2_prepare_write,
+	commit_write:	jffs2_commit_write
+};
+
+int jffs2_setattr (struct dentry *dentry, struct iattr *iattr)
+{
+	struct jffs2_full_dnode *old_metadata, *new_metadata;
+	struct inode *inode = dentry->d_inode;
+	struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+	struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
+	struct jffs2_raw_inode *ri;
+	unsigned short dev;
+	unsigned char *mdata = NULL;
+	int mdatalen = 0;
+	unsigned int ivalid;
+	__u32 phys_ofs, alloclen;
+	int ret;
+	D1(printk(KERN_DEBUG "jffs2_setattr(): ino #%lu\n", inode->i_ino));
+	ret = inode_change_ok(inode, iattr);
+	if (ret) 
+		return ret;
+
+	/* Special cases - we don't want more than one data node
+	   for these types on the medium at any time. So setattr
+	   must read the original data associated with the node
+	   (i.e. the device numbers or the target name) and write
+	   it out again with the appropriate data attached */
+	if (S_ISBLK(inode->i_mode) || S_ISCHR(inode->i_mode)) {
+		/* For these, we don't actually need to read the old node */
+		dev =  (MAJOR(to_kdev_t(dentry->d_inode->i_rdev)) << 8) | 
+			MINOR(to_kdev_t(dentry->d_inode->i_rdev));
+		mdata = (char *)&dev;
+		mdatalen = sizeof(dev);
+		D1(printk(KERN_DEBUG "jffs2_setattr(): Writing %d bytes of kdev_t\n", mdatalen));
+	} else if (S_ISLNK(inode->i_mode)) {
+		mdatalen = f->metadata->size;
+		mdata = kmalloc(f->metadata->size, GFP_USER);
+		if (!mdata)
+			return -ENOMEM;
+		ret = jffs2_read_dnode(c, f->metadata, mdata, 0, mdatalen);
+		if (ret) {
+			kfree(mdata);
+			return ret;
+		}
+		D1(printk(KERN_DEBUG "jffs2_setattr(): Writing %d bytes of symlink target\n", mdatalen));
+	}
+
+	ri = jffs2_alloc_raw_inode();
+	if (!ri) {
+		if (S_ISLNK(inode->i_mode))
+			kfree(mdata);
+		return -ENOMEM;
+	}
+		
+	ret = jffs2_reserve_space(c, sizeof(*ri) + mdatalen, &phys_ofs, &alloclen, ALLOC_NORMAL);
+	if (ret) {
+		jffs2_free_raw_inode(ri);
+		if (S_ISLNK(inode->i_mode))
+			 kfree(mdata);
+		return ret;
+	}
+	down(&f->sem);
+        ivalid = iattr->ia_valid;
+	
+	ri->magic = JFFS2_MAGIC_BITMASK;
+	ri->nodetype = JFFS2_NODETYPE_INODE;
+	ri->totlen = sizeof(*ri) + mdatalen;
+	ri->hdr_crc = crc32(0, ri, sizeof(struct jffs2_unknown_node)-4);
+
+	ri->ino = inode->i_ino;
+	ri->version = ++f->highest_version;
+
+	ri->mode = (ivalid & ATTR_MODE)?iattr->ia_mode:inode->i_mode;
+	ri->uid = (ivalid & ATTR_UID)?iattr->ia_uid:inode->i_uid;
+	ri->gid = (ivalid & ATTR_GID)?iattr->ia_gid:inode->i_gid;
+
+	if (ivalid & ATTR_MODE && ri->mode & S_ISGID &&
+	    !in_group_p(ri->gid) && !capable(CAP_FSETID))
+		ri->mode &= ~S_ISGID;
+
+	ri->isize = (ivalid & ATTR_SIZE)?iattr->ia_size:inode->i_size;
+	ri->atime = (ivalid & ATTR_ATIME)?iattr->ia_atime:inode->i_atime;
+	ri->mtime = (ivalid & ATTR_MTIME)?iattr->ia_mtime:inode->i_mtime;
+	ri->ctime = (ivalid & ATTR_CTIME)?iattr->ia_ctime:inode->i_ctime;
+
+	ri->offset = 0;
+	ri->csize = ri->dsize = mdatalen;
+	ri->compr = JFFS2_COMPR_NONE;
+	if (inode->i_size < ri->isize) {
+		/* It's an extension. Make it a hole node */
+		ri->compr = JFFS2_COMPR_ZERO;
+		ri->dsize = ri->isize - inode->i_size;
+		ri->offset = inode->i_size;
+	}
+	ri->node_crc = crc32(0, ri, sizeof(*ri)-8);
+	if (mdatalen)
+		ri->data_crc = crc32(0, mdata, mdatalen);
+	else
+		ri->data_crc = 0;
+
+	new_metadata = jffs2_write_dnode(inode, ri, mdata, mdatalen, phys_ofs, NULL);
+	if (S_ISLNK(inode->i_mode))
+		kfree(mdata);
+
+	jffs2_complete_reservation(c);
+	
+	if (IS_ERR(new_metadata)) {
+		jffs2_free_raw_inode(ri);
+		up(&f->sem);
+		return PTR_ERR(new_metadata);
+	}
+	/* It worked. Update the inode */
+	inode->i_atime = ri->atime;
+	inode->i_ctime = ri->ctime;
+	inode->i_mtime = ri->mtime;
+	inode->i_mode = ri->mode;
+	inode->i_uid = ri->uid;
+	inode->i_gid = ri->gid;
+
+
+	old_metadata = f->metadata;
+
+	if (inode->i_size > ri->isize) {
+		vmtruncate(inode, ri->isize);
+		jffs2_truncate_fraglist (c, &f->fraglist, ri->isize);
+	}
+
+	if (inode->i_size < ri->isize) {
+		jffs2_add_full_dnode_to_inode(c, f, new_metadata);
+		inode->i_size = ri->isize;
+		f->metadata = NULL;
+	} else {
+		f->metadata = new_metadata;
+	}
+	if (old_metadata) {
+		jffs2_mark_node_obsolete(c, old_metadata->raw);
+		jffs2_free_full_dnode(old_metadata);
+	}
+	jffs2_free_raw_inode(ri);
+	up(&f->sem);
+	return 0;
+}
+
+int jffs2_do_readpage_nolock (struct inode *inode, struct page *pg)
+{
+	struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+	struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
+	struct jffs2_node_frag *frag = f->fraglist;
+	__u32 offset = pg->index << PAGE_CACHE_SHIFT;
+	__u32 end = offset + PAGE_CACHE_SIZE;
+	unsigned char *pg_buf;
+	int ret;
+
+	D1(printk(KERN_DEBUG "jffs2_do_readpage_nolock(): ino #%lu, page at offset 0x%x\n", inode->i_ino, offset));
+
+	if (!PageLocked(pg))
+                PAGE_BUG(pg);
+
+	while(frag && frag->ofs + frag->size  <= offset) {
+		//		D1(printk(KERN_DEBUG "skipping frag %d-%d; before the region we care about\n", frag->ofs, frag->ofs + frag->size));
+		frag = frag->next;
+	}
+
+	pg_buf = kmap(pg);
+
+	/* XXX FIXME: Where a single physical node actually shows up in two
+	   frags, we read it twice. Don't do that. */
+	/* Now we're pointing at the first frag which overlaps our page */
+	while(offset < end) {
+		D2(printk(KERN_DEBUG "jffs2_readpage: offset %d, end %d\n", offset, end));
+		if (!frag || frag->ofs > offset) {
+			__u32 holesize = end - offset;
+			if (frag) {
+				D1(printk(KERN_NOTICE "Eep. Hole in ino %ld fraglist. frag->ofs = 0x%08x, offset = 0x%08x\n", inode->i_ino, frag->ofs, offset));
+				holesize = min(holesize, frag->ofs - offset);
+				D1(jffs2_print_frag_list(f));
+			}
+			D1(printk(KERN_DEBUG "Filling non-frag hole from %d-%d\n", offset, offset+holesize));
+			memset(pg_buf, 0, holesize);
+			pg_buf += holesize;
+			offset += holesize;
+			continue;
+		} else if (frag->ofs < offset && (offset & (PAGE_CACHE_SIZE-1)) != 0) {
+			D1(printk(KERN_NOTICE "Eep. Overlap in ino #%ld fraglist. frag->ofs = 0x%08x, offset = 0x%08x\n",
+				  inode->i_ino, frag->ofs, offset));
+			D1(jffs2_print_frag_list(f));
+			memset(pg_buf, 0, end - offset);
+			ClearPageUptodate(pg);
+			SetPageError(pg);
+			kunmap(pg);
+			return -EIO;
+		} else if (!frag->node) {
+			__u32 holeend = min(end, frag->ofs + frag->size);
+			D1(printk(KERN_DEBUG "Filling frag hole from %d-%d (frag 0x%x 0x%x)\n", offset, holeend, frag->ofs, frag->ofs + frag->size));
+			memset(pg_buf, 0, holeend - offset);
+			pg_buf += holeend - offset;
+			offset = holeend;
+			frag = frag->next;
+			continue;
+		} else {
+			__u32 readlen;
+			__u32 fragofs; /* offset within the frag to start reading */
+
+			fragofs = offset - frag->ofs;
+			readlen = min(frag->size - fragofs, end - offset);
+			D1(printk(KERN_DEBUG "Reading %d-%d from node at 0x%x\n", frag->ofs+fragofs, 
+				  fragofs+frag->ofs+readlen, frag->node->raw->flash_offset & ~3));
+			ret = jffs2_read_dnode(c, frag->node, pg_buf, fragofs + frag->ofs - frag->node->ofs, readlen);
+			D2(printk(KERN_DEBUG "node read done\n"));
+			if (ret) {
+				D1(printk(KERN_DEBUG"jffs2_readpage error %d\n",ret));
+				memset(pg_buf, 0, readlen);
+				ClearPageUptodate(pg);
+				SetPageError(pg);
+				kunmap(pg);
+				return ret;
+			}
+		
+			pg_buf += readlen;
+			offset += readlen;
+			frag = frag->next;
+			D2(printk(KERN_DEBUG "node read was OK. Looping\n"));
+		}
+	}
+	D2(printk(KERN_DEBUG "readpage finishing\n"));
+	SetPageUptodate(pg);
+	ClearPageError(pg);
+
+	flush_dcache_page(pg);
+
+	kunmap(pg);
+	D1(printk(KERN_DEBUG "readpage finished\n"));
+	return 0;
+}
+
+int jffs2_do_readpage_unlock(struct inode *inode, struct page *pg)
+{
+	int ret = jffs2_do_readpage_nolock(inode, pg);
+	UnlockPage(pg);
+	return ret;
+}
+
+
+int jffs2_readpage (struct file *filp, struct page *pg)
+{
+	struct jffs2_inode_info *f = JFFS2_INODE_INFO(pg->mapping->host);
+	int ret;
+	
+	down(&f->sem);
+	ret = jffs2_do_readpage_unlock(pg->mapping->host, pg);
+	up(&f->sem);
+	return ret;
+}
+
+int jffs2_prepare_write (struct file *filp, struct page *pg, unsigned start, unsigned end)
+{
+	struct inode *inode = pg->mapping->host;
+	struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+	__u32 pageofs = pg->index << PAGE_CACHE_SHIFT;
+	int ret = 0;
+
+	D1(printk(KERN_DEBUG "jffs2_prepare_write() nrpages %ld\n", inode->i_mapping->nrpages));
+
+	if (pageofs > inode->i_size) {
+		/* Make new hole frag from old EOF to new page */
+		struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
+		struct jffs2_raw_inode ri;
+		struct jffs2_full_dnode *fn;
+		__u32 phys_ofs, alloc_len;
+		
+		D1(printk(KERN_DEBUG "Writing new hole frag 0x%x-0x%x between current EOF and new page\n",
+			  (unsigned int)inode->i_size, pageofs));
+
+		ret = jffs2_reserve_space(c, sizeof(ri), &phys_ofs, &alloc_len, ALLOC_NORMAL);
+		if (ret)
+			return ret;
+
+		down(&f->sem);
+		memset(&ri, 0, sizeof(ri));
+
+		ri.magic = JFFS2_MAGIC_BITMASK;
+		ri.nodetype = JFFS2_NODETYPE_INODE;
+		ri.totlen = sizeof(ri);
+		ri.hdr_crc = crc32(0, &ri, sizeof(struct jffs2_unknown_node)-4);
+
+		ri.ino = f->inocache->ino;
+		ri.version = ++f->highest_version;
+		ri.mode = inode->i_mode;
+		ri.uid = inode->i_uid;
+		ri.gid = inode->i_gid;
+		ri.isize = max((__u32)inode->i_size, pageofs);
+		ri.atime = ri.ctime = ri.mtime = CURRENT_TIME;
+		ri.offset = inode->i_size;
+		ri.dsize = pageofs - inode->i_size;
+		ri.csize = 0;
+		ri.compr = JFFS2_COMPR_ZERO;
+		ri.node_crc = crc32(0, &ri, sizeof(ri)-8);
+		ri.data_crc = 0;
+		
+		fn = jffs2_write_dnode(inode, &ri, NULL, 0, phys_ofs, NULL);
+		jffs2_complete_reservation(c);
+		if (IS_ERR(fn)) {
+			ret = PTR_ERR(fn);
+			up(&f->sem);
+			return ret;
+		}
+		ret = jffs2_add_full_dnode_to_inode(c, f, fn);
+		if (f->metadata) {
+			jffs2_mark_node_obsolete(c, f->metadata->raw);
+			jffs2_free_full_dnode(f->metadata);
+			f->metadata = NULL;
+		}
+		if (ret) {
+			D1(printk(KERN_DEBUG "Eep. add_full_dnode_to_inode() failed in prepare_write, returned %d\n", ret));
+			jffs2_mark_node_obsolete(c, fn->raw);
+			jffs2_free_full_dnode(fn);
+			up(&f->sem);
+			return ret;
+		}
+		inode->i_size = pageofs;
+		up(&f->sem);
+	}
+	
+
+	/* Read in the page if it wasn't already present, unless it's a whole page */
+	if (!Page_Uptodate(pg) && (start || end < PAGE_CACHE_SIZE)) {
+		down(&f->sem);
+		ret = jffs2_do_readpage_nolock(inode, pg);
+		up(&f->sem);
+	}
+	D1(printk(KERN_DEBUG "end prepare_write(). pg->flags %lx\n", pg->flags));
+	return ret;
+}
+
+int jffs2_commit_write (struct file *filp, struct page *pg, unsigned start, unsigned end)
+{
+	/* Actually commit the write from the page cache page we're looking at.
+	 * For now, we write the full page out each time. It sucks, but it's simple
+	 */
+	struct inode *inode = pg->mapping->host;
+	struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+	struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
+	__u32 newsize = max_t(__u32, filp->f_dentry->d_inode->i_size, (pg->index << PAGE_CACHE_SHIFT) + end);
+	__u32 file_ofs = (pg->index << PAGE_CACHE_SHIFT);
+	__u32 writelen = min((__u32)PAGE_CACHE_SIZE, newsize - file_ofs);
+	struct jffs2_raw_inode *ri;
+	int ret = 0;
+	ssize_t writtenlen = 0;
+
+	D1(printk(KERN_DEBUG "jffs2_commit_write(): ino #%lu, page at 0x%lx, range %d-%d, flags %lx\n", inode->i_ino, pg->index << PAGE_CACHE_SHIFT, start, end, pg->flags));
+
+	if (!start && end == PAGE_CACHE_SIZE) {
+		/* We need to avoid deadlock with page_cache_read() in
+		   jffs2_garbage_collect_pass(). So we have to mark the
+		   page up to date, to prevent page_cache_read() from 
+		   trying to re-lock it. */
+		SetPageUptodate(pg);
+	}
+
+	ri = jffs2_alloc_raw_inode();
+	if (!ri)
+		return -ENOMEM;
+
+	while(writelen) {
+		struct jffs2_full_dnode *fn;
+		unsigned char *comprbuf = NULL;
+		unsigned char comprtype = JFFS2_COMPR_NONE;
+		__u32 phys_ofs, alloclen;
+		__u32 datalen, cdatalen;
+
+		D2(printk(KERN_DEBUG "jffs2_commit_write() loop: 0x%x to write to 0x%x\n", writelen, file_ofs));
+
+		ret = jffs2_reserve_space(c, sizeof(*ri) + JFFS2_MIN_DATA_LEN, &phys_ofs, &alloclen, ALLOC_NORMAL);
+		if (ret) {
+			SetPageError(pg);
+			D1(printk(KERN_DEBUG "jffs2_reserve_space returned %d\n", ret));
+			break;
+		}
+		down(&f->sem);
+		datalen = writelen;
+		cdatalen = min(alloclen - sizeof(*ri), writelen);
+
+		comprbuf = kmalloc(cdatalen, GFP_KERNEL);
+		if (comprbuf) {
+			comprtype = jffs2_compress(page_address(pg)+ (file_ofs & (PAGE_CACHE_SIZE-1)), comprbuf, &datalen, &cdatalen);
+		}
+		if (comprtype == JFFS2_COMPR_NONE) {
+			/* Either compression failed, or the allocation of comprbuf failed */
+			if (comprbuf)
+				kfree(comprbuf);
+			comprbuf = page_address(pg) + (file_ofs & (PAGE_CACHE_SIZE -1));
+			datalen = cdatalen;
+		}
+		/* Now comprbuf points to the data to be written, be it compressed or not.
+		   comprtype holds the compression type, and comprtype == JFFS2_COMPR_NONE means
+		   that the comprbuf doesn't need to be kfree()d. 
+		*/
+
+		ri->magic = JFFS2_MAGIC_BITMASK;
+		ri->nodetype = JFFS2_NODETYPE_INODE;
+		ri->totlen = sizeof(*ri) + cdatalen;
+		ri->hdr_crc = crc32(0, ri, sizeof(struct jffs2_unknown_node)-4);
+
+		ri->ino = inode->i_ino;
+		ri->version = ++f->highest_version;
+		ri->mode = inode->i_mode;
+		ri->uid = inode->i_uid;
+		ri->gid = inode->i_gid;
+		ri->isize = max((__u32)inode->i_size, file_ofs + datalen);
+		ri->atime = ri->ctime = ri->mtime = CURRENT_TIME;
+		ri->offset = file_ofs;
+		ri->csize = cdatalen;
+		ri->dsize = datalen;
+		ri->compr = comprtype;
+		ri->node_crc = crc32(0, ri, sizeof(*ri)-8);
+		ri->data_crc = crc32(0, comprbuf, cdatalen);
+
+		fn = jffs2_write_dnode(inode, ri, comprbuf, cdatalen, phys_ofs, NULL);
+
+		jffs2_complete_reservation(c);
+
+		if (comprtype != JFFS2_COMPR_NONE)
+			kfree(comprbuf);
+
+		if (IS_ERR(fn)) {
+			ret = PTR_ERR(fn);
+			up(&f->sem);
+			SetPageError(pg);
+			break;
+		}
+		ret = jffs2_add_full_dnode_to_inode(c, f, fn);
+		if (f->metadata) {
+			jffs2_mark_node_obsolete(c, f->metadata->raw);
+			jffs2_free_full_dnode(f->metadata);
+			f->metadata = NULL;
+		}
+		up(&f->sem);
+		if (ret) {
+			/* Eep */
+			D1(printk(KERN_DEBUG "Eep. add_full_dnode_to_inode() failed in commit_write, returned %d\n", ret));
+			jffs2_mark_node_obsolete(c, fn->raw);
+			jffs2_free_full_dnode(fn);
+			SetPageError(pg);
+			break;
+		}
+		inode->i_size = ri->isize;
+		inode->i_blocks = (inode->i_size + 511) >> 9;
+		inode->i_ctime = inode->i_mtime = ri->ctime;
+		if (!datalen) {
+			printk(KERN_WARNING "Eep. We didn't actually write any bloody data\n");
+			ret = -EIO;
+			SetPageError(pg);
+			break;
+		}
+		D1(printk(KERN_DEBUG "increasing writtenlen by %d\n", datalen));
+		writtenlen += datalen;
+		file_ofs += datalen;
+		writelen -= datalen;
+	}
+
+	jffs2_free_raw_inode(ri);
+
+	if (writtenlen < end) {
+		/* generic_file_write has written more to the page cache than we've
+		   actually written to the medium. Mark the page !Uptodate so that 
+		   it gets reread */
+		D1(printk(KERN_DEBUG "jffs2_commit_write(): Not all bytes written. Marking page !uptodate\n"));
+		SetPageError(pg);
+		ClearPageUptodate(pg);
+	}
+	if (writtenlen <= start) {
+		/* We didn't even get to the start of the affected part */
+		ret = ret?ret:-ENOSPC;
+		D1(printk(KERN_DEBUG "jffs2_commit_write(): Only %x bytes written to page. start (%x) not reached, returning %d\n", writtenlen, start, ret));
+	}
+	writtenlen = min(end-start, writtenlen-start);
+
+	D1(printk(KERN_DEBUG "jffs2_commit_write() returning %d. nrpages is %ld\n",writtenlen?writtenlen:ret, inode->i_mapping->nrpages));
+	return writtenlen?writtenlen:ret;
+}
diff --git a/fs/jffs2/gc.c b/fs/jffs2/gc.c
new file mode 100644
index 00000000000000..1312afa6ad8213
--- /dev/null
+++ b/fs/jffs2/gc.c
@@ -0,0 +1,705 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright (C) 2001 Red Hat, Inc.
+ *
+ * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
+ *
+ * The original JFFS, from which the design for JFFS2 was derived,
+ * was designed and implemented by Axis Communications AB.
+ *
+ * The contents of this file are subject to the Red Hat eCos Public
+ * License Version 1.1 (the "Licence"); you may not use this file
+ * except in compliance with the Licence.  You may obtain a copy of
+ * the Licence at http://www.redhat.com/
+ *
+ * Software distributed under the Licence is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing rights and
+ * limitations under the Licence.
+ *
+ * The Original Code is JFFS2 - Journalling Flash File System, version 2
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in
+ * which case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the RHEPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the RHEPL or the GPL.
+ *
+ * $Id: gc.c,v 1.52.2.7 2003/11/02 13:54:20 dwmw2 Exp $
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/mtd/mtd.h>
+#include <linux/slab.h>
+#include <linux/jffs2.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/pagemap.h>
+#include "nodelist.h"
+#include <linux/crc32.h>
+
+static int jffs2_garbage_collect_metadata(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, 
+					struct inode *inode, struct jffs2_full_dnode *fd);
+static int jffs2_garbage_collect_dirent(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, 
+					struct inode *inode, struct jffs2_full_dirent *fd);
+static int jffs2_garbage_collect_deletion_dirent(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, 
+					struct inode *inode, struct jffs2_full_dirent *fd);
+static int jffs2_garbage_collect_hole(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
+				      struct inode *indeo, struct jffs2_full_dnode *fn,
+				      __u32 start, __u32 end);
+static int jffs2_garbage_collect_dnode(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
+				       struct inode *inode, struct jffs2_full_dnode *fn,
+				       __u32 start, __u32 end);
+
+/* Called with erase_completion_lock held */
+static struct jffs2_eraseblock *jffs2_find_gc_block(struct jffs2_sb_info *c)
+{
+	struct jffs2_eraseblock *ret;
+	struct list_head *nextlist = NULL;
+
+	/* Pick an eraseblock to garbage collect next. This is where we'll
+	   put the clever wear-levelling algorithms. Eventually.  */
+	if (!list_empty(&c->bad_used_list) && c->nr_free_blocks > JFFS2_RESERVED_BLOCKS_GCBAD) {
+		D1(printk(KERN_DEBUG "Picking block from bad_used_list to GC next\n"));
+		nextlist = &c->bad_used_list;
+	} else if (jiffies % 100 && !list_empty(&c->dirty_list)) {
+		/* Most of the time, pick one off the dirty list */
+		D1(printk(KERN_DEBUG "Picking block from dirty_list to GC next\n"));
+		nextlist = &c->dirty_list;
+	} else if (!list_empty(&c->clean_list)) {
+		D1(printk(KERN_DEBUG "Picking block from clean_list to GC next\n"));
+		nextlist = &c->clean_list;
+	} else if (!list_empty(&c->dirty_list)) {
+		D1(printk(KERN_DEBUG "Picking block from dirty_list to GC next (clean_list was empty)\n"));
+
+		nextlist = &c->dirty_list;
+	} else {
+		/* Eep. Both were empty */
+		printk(KERN_NOTICE "jffs2: No clean _or_ dirty blocks to GC from! Where are they all?\n");
+		return NULL;
+	}
+
+	ret = list_entry(nextlist->next, struct jffs2_eraseblock, list);
+	list_del(&ret->list);
+	c->gcblock = ret;
+	ret->gc_node = ret->first_node;
+	if (!ret->gc_node) {
+		printk(KERN_WARNING "Eep. ret->gc_node for block at 0x%08x is NULL\n", ret->offset);
+		BUG();
+	}
+	return ret;
+}
+
+/* jffs2_garbage_collect_pass
+ * Make a single attempt to progress GC. Move one node, and possibly
+ * start erasing one eraseblock.
+ */
+int jffs2_garbage_collect_pass(struct jffs2_sb_info *c)
+{
+	struct jffs2_eraseblock *jeb;
+	struct jffs2_inode_info *f;
+	struct jffs2_raw_node_ref *raw;
+	struct jffs2_node_frag *frag;
+	struct jffs2_full_dnode *fn = NULL;
+	struct jffs2_full_dirent *fd;
+	struct jffs2_inode_cache *ic;
+	__u32 start = 0, end = 0, nrfrags = 0;
+	struct inode *inode;
+	int ret = 0;
+
+	if (down_interruptible(&c->alloc_sem))
+		return -EINTR;
+
+	spin_lock_bh(&c->erase_completion_lock);
+
+	/* First, work out which block we're garbage-collecting */
+	jeb = c->gcblock;
+
+	if (!jeb)
+		jeb = jffs2_find_gc_block(c);
+
+	if (!jeb) {
+		printk(KERN_NOTICE "jffs2: Couldn't find erase block to garbage collect!\n");
+		spin_unlock_bh(&c->erase_completion_lock);
+		up(&c->alloc_sem);
+		return -EIO;
+	}
+
+	D1(printk(KERN_DEBUG "garbage collect from block at phys 0x%08x\n", jeb->offset));
+
+	if (!jeb->used_size) {
+		up(&c->alloc_sem);
+		goto eraseit;
+	}
+
+	raw = jeb->gc_node;
+			
+	while(raw->flash_offset & 1) {
+		D1(printk(KERN_DEBUG "Node at 0x%08x is obsolete... skipping\n", raw->flash_offset &~3));
+		jeb->gc_node = raw = raw->next_phys;
+		if (!raw) {
+			printk(KERN_WARNING "eep. End of raw list while still supposedly nodes to GC\n");
+			printk(KERN_WARNING "erase block at 0x%08x. free_size 0x%08x, dirty_size 0x%08x, used_size 0x%08x\n", 
+			       jeb->offset, jeb->free_size, jeb->dirty_size, jeb->used_size);
+			spin_unlock_bh(&c->erase_completion_lock);
+			up(&c->alloc_sem);
+			BUG();
+		}
+	}
+	D1(printk(KERN_DEBUG "Going to garbage collect node at 0x%08x\n", raw->flash_offset &~3));
+	if (!raw->next_in_ino) {
+		/* Inode-less node. Clean marker, snapshot or something like that */
+		spin_unlock_bh(&c->erase_completion_lock);
+		jffs2_mark_node_obsolete(c, raw);
+		up(&c->alloc_sem);
+		goto eraseit_lock;
+	}
+						     
+	ic = jffs2_raw_ref_to_ic(raw);
+	D1(printk(KERN_DEBUG "Inode number is #%u\n", ic->ino));
+
+	spin_unlock_bh(&c->erase_completion_lock);
+
+	D1(printk(KERN_DEBUG "jffs2_garbage_collect_pass collecting from block @0x%08x. Node @0x%08x, ino #%u\n", jeb->offset, raw->flash_offset&~3, ic->ino));
+	if (!ic->nlink) {
+		/* The inode has zero nlink but its nodes weren't yet marked
+		   obsolete. This has to be because we're still waiting for 
+		   the final (close() and) iput() to happen.
+
+		   There's a possibility that the final iput() could have 
+		   happened while we were contemplating. In order to ensure
+		   that we don't cause a new read_inode() (which would fail)
+		   for the inode in question, we use ilookup() in this case
+		   instead of iget().
+
+		   The nlink can't _become_ zero at this point because we're 
+		   holding the alloc_sem, and jffs2_do_unlink() would also
+		   need that while decrementing nlink on any inode.
+		*/
+		inode = ilookup(OFNI_BS_2SFFJ(c), ic->ino);
+		if (!inode) {
+			D1(printk(KERN_DEBUG "ilookup() failed for ino #%u; inode is probably deleted.\n",
+				  ic->ino));
+			up(&c->alloc_sem);
+			return 0;
+		}
+	} else {
+		/* Inode has links to it still; they're not going away because
+		   jffs2_do_unlink() would need the alloc_sem and we have it.
+		   Just iget() it, and if read_inode() is necessary that's OK.
+		*/
+		inode = iget(OFNI_BS_2SFFJ(c), ic->ino);
+		if (!inode) {
+			up(&c->alloc_sem);
+			return -ENOMEM;
+		}
+	}
+	if (is_bad_inode(inode)) {
+		printk(KERN_NOTICE "Eep. read_inode() failed for ino #%u\n", ic->ino);
+		/* NB. This will happen again. We need to do something appropriate here. */
+		up(&c->alloc_sem);
+		iput(inode);
+		return -EIO;
+	}
+
+	f = JFFS2_INODE_INFO(inode);
+	down(&f->sem);
+	/* Now we have the lock for this inode. Check that it's still the one at the head
+	   of the list. */
+
+	if (raw->flash_offset & 1) {
+		D1(printk(KERN_DEBUG "node to be GC'd was obsoleted in the meantime.\n"));
+		/* They'll call again */
+		goto upnout;
+	}
+	/* OK. Looks safe. And nobody can get us now because we have the semaphore. Move the block */
+	if (f->metadata && f->metadata->raw == raw) {
+		fn = f->metadata;
+		ret = jffs2_garbage_collect_metadata(c, jeb, inode, fn);
+		goto upnout;
+	}
+	
+	for (frag = f->fraglist; frag; frag = frag->next) {
+		if (frag->node && frag->node->raw == raw) {
+			fn = frag->node;
+			end = frag->ofs + frag->size;
+			if (!nrfrags++)
+				start = frag->ofs;
+			if (nrfrags == frag->node->frags)
+				break; /* We've found them all */
+		}
+	}
+	if (fn) {
+		/* We found a datanode. Do the GC */
+		if((start >> PAGE_CACHE_SHIFT) < ((end-1) >> PAGE_CACHE_SHIFT)) {
+			/* It crosses a page boundary. Therefore, it must be a hole. */
+			ret = jffs2_garbage_collect_hole(c, jeb, inode, fn, start, end);
+		} else {
+			/* It could still be a hole. But we GC the page this way anyway */
+			ret = jffs2_garbage_collect_dnode(c, jeb, inode, fn, start, end);
+		}
+		goto upnout;
+	}
+	
+	/* Wasn't a dnode. Try dirent */
+	for (fd = f->dents; fd; fd=fd->next) {
+		if (fd->raw == raw)
+			break;
+	}
+
+	if (fd && fd->ino) {
+		ret = jffs2_garbage_collect_dirent(c, jeb, inode, fd);
+	} else if (fd) {
+		ret = jffs2_garbage_collect_deletion_dirent(c, jeb, inode, fd);
+	} else {
+		printk(KERN_WARNING "Raw node at 0x%08x wasn't in node lists for ino #%lu\n", raw->flash_offset&~3, inode->i_ino);
+		if (raw->flash_offset & 1) {
+			printk(KERN_WARNING "But it's obsolete so we don't mind too much\n");
+		} else {
+			ret = -EIO;
+		}
+	}
+ upnout:
+	up(&f->sem);
+	up(&c->alloc_sem);
+	iput(inode);
+
+ eraseit_lock:
+	/* If we've finished this block, start it erasing */
+	spin_lock_bh(&c->erase_completion_lock);
+
+ eraseit:
+	if (c->gcblock && !c->gcblock->used_size) {
+		D1(printk(KERN_DEBUG "Block at 0x%08x completely obsoleted by GC. Moving to erase_pending_list\n", c->gcblock->offset));
+		/* We're GC'ing an empty block? */
+		list_add_tail(&c->gcblock->list, &c->erase_pending_list);
+		c->gcblock = NULL;
+		c->nr_erasing_blocks++;
+		jffs2_erase_pending_trigger(c);
+	}
+	spin_unlock_bh(&c->erase_completion_lock);
+
+	return ret;
+}
+
+static int jffs2_garbage_collect_metadata(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, 
+					struct inode *inode, struct jffs2_full_dnode *fn)
+{
+	struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+	struct jffs2_full_dnode *new_fn;
+	struct jffs2_raw_inode ri;
+	unsigned short dev;
+	char *mdata = NULL, mdatalen = 0;
+	__u32 alloclen, phys_ofs;
+	int ret;
+
+	if (S_ISBLK(inode->i_mode) || S_ISCHR(inode->i_mode)) {
+		/* For these, we don't actually need to read the old node */
+		dev =  (MAJOR(to_kdev_t(inode->i_rdev)) << 8) | 
+			MINOR(to_kdev_t(inode->i_rdev));
+		mdata = (char *)&dev;
+		mdatalen = sizeof(dev);
+		D1(printk(KERN_DEBUG "jffs2_garbage_collect_metadata(): Writing %d bytes of kdev_t\n", mdatalen));
+	} else if (S_ISLNK(inode->i_mode)) {
+		mdatalen = fn->size;
+		mdata = kmalloc(fn->size, GFP_KERNEL);
+		if (!mdata) {
+			printk(KERN_WARNING "kmalloc of mdata failed in jffs2_garbage_collect_metadata()\n");
+			return -ENOMEM;
+		}
+		ret = jffs2_read_dnode(c, fn, mdata, 0, mdatalen);
+		if (ret) {
+			printk(KERN_WARNING "read of old metadata failed in jffs2_garbage_collect_metadata(): %d\n", ret);
+			kfree(mdata);
+			return ret;
+		}
+		D1(printk(KERN_DEBUG "jffs2_garbage_collect_metadata(): Writing %d bites of symlink target\n", mdatalen));
+
+	}
+	
+	ret = jffs2_reserve_space_gc(c, sizeof(ri) + mdatalen, &phys_ofs, &alloclen);
+	if (ret) {
+		printk(KERN_WARNING "jffs2_reserve_space_gc of %d bytes for garbage_collect_metadata failed: %d\n",
+		       sizeof(ri)+ mdatalen, ret);
+		goto out;
+	}
+	
+	memset(&ri, 0, sizeof(ri));
+	ri.magic = JFFS2_MAGIC_BITMASK;
+	ri.nodetype = JFFS2_NODETYPE_INODE;
+	ri.totlen = sizeof(ri) + mdatalen;
+	ri.hdr_crc = crc32(0, &ri, sizeof(struct jffs2_unknown_node)-4);
+
+	ri.ino = inode->i_ino;
+	ri.version = ++f->highest_version;
+	ri.mode = inode->i_mode;
+	ri.uid = inode->i_uid;
+	ri.gid = inode->i_gid;
+	ri.isize = inode->i_size;
+	ri.atime = inode->i_atime;
+	ri.ctime = inode->i_ctime;
+	ri.mtime = inode->i_mtime;
+	ri.offset = 0;
+	ri.csize = mdatalen;
+	ri.dsize = mdatalen;
+	ri.compr = JFFS2_COMPR_NONE;
+	ri.node_crc = crc32(0, &ri, sizeof(ri)-8);
+	ri.data_crc = crc32(0, mdata, mdatalen);
+
+	new_fn = jffs2_write_dnode(inode, &ri, mdata, mdatalen, phys_ofs, NULL);
+
+	if (IS_ERR(new_fn)) {
+		printk(KERN_WARNING "Error writing new dnode: %ld\n", PTR_ERR(new_fn));
+		ret = PTR_ERR(new_fn);
+		goto out;
+	}
+	jffs2_mark_node_obsolete(c, fn->raw);
+	jffs2_free_full_dnode(fn);
+	f->metadata = new_fn;
+ out:
+	if (S_ISLNK(inode->i_mode))
+		kfree(mdata);
+	return ret;
+}
+
+static int jffs2_garbage_collect_dirent(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, 
+					struct inode *inode, struct jffs2_full_dirent *fd)
+{
+	struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+	struct jffs2_full_dirent *new_fd;
+	struct jffs2_raw_dirent rd;
+	__u32 alloclen, phys_ofs;
+	int ret;
+
+	rd.magic = JFFS2_MAGIC_BITMASK;
+	rd.nodetype = JFFS2_NODETYPE_DIRENT;
+	rd.nsize = strlen(fd->name);
+	rd.totlen = sizeof(rd) + rd.nsize;
+	rd.hdr_crc = crc32(0, &rd, sizeof(struct jffs2_unknown_node)-4);
+
+	rd.pino = inode->i_ino;
+	rd.version = ++f->highest_version;
+	rd.ino = fd->ino;
+	rd.mctime = max(inode->i_mtime, inode->i_ctime);
+	rd.type = fd->type;
+	rd.node_crc = crc32(0, &rd, sizeof(rd)-8);
+	rd.name_crc = crc32(0, fd->name, rd.nsize);
+	
+	ret = jffs2_reserve_space_gc(c, sizeof(rd)+rd.nsize, &phys_ofs, &alloclen);
+	if (ret) {
+		printk(KERN_WARNING "jffs2_reserve_space_gc of %d bytes for garbage_collect_dirent failed: %d\n",
+		       sizeof(rd)+rd.nsize, ret);
+		return ret;
+	}
+	new_fd = jffs2_write_dirent(inode, &rd, fd->name, rd.nsize, phys_ofs, NULL);
+
+	if (IS_ERR(new_fd)) {
+		printk(KERN_WARNING "jffs2_write_dirent in garbage_collect_dirent failed: %ld\n", PTR_ERR(new_fd));
+		return PTR_ERR(new_fd);
+	}
+	jffs2_add_fd_to_list(c, new_fd, &f->dents);
+	return 0;
+}
+
+static int jffs2_garbage_collect_deletion_dirent(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, 
+					struct inode *inode, struct jffs2_full_dirent *fd)
+{
+	struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+	struct jffs2_full_dirent **fdp = &f->dents;
+	int found = 0;
+
+	/* FIXME: When we run on NAND flash, we need to work out whether
+	   this deletion dirent is still needed to actively delete a
+	   'real' dirent with the same name that's still somewhere else
+	   on the flash. For now, we know that we've actually obliterated
+	   all the older dirents when they became obsolete, so we didn't
+	   really need to write the deletion to flash in the first place.
+	*/
+	while (*fdp) {
+		if ((*fdp) == fd) {
+			found = 1;
+			*fdp = fd->next;
+			break;
+		}
+		fdp = &(*fdp)->next;
+	}
+	if (!found) {
+		printk(KERN_WARNING "Deletion dirent \"%s\" not found in list for ino #%lu\n", fd->name, inode->i_ino);
+	}
+	jffs2_mark_node_obsolete(c, fd->raw);
+	jffs2_free_full_dirent(fd);
+	return 0;
+}
+
+static int jffs2_garbage_collect_hole(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
+				      struct inode *inode, struct jffs2_full_dnode *fn,
+				      __u32 start, __u32 end)
+{
+	struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+	struct jffs2_raw_inode ri;
+	struct jffs2_node_frag *frag;
+	struct jffs2_full_dnode *new_fn;
+	__u32 alloclen, phys_ofs;
+	int ret;
+
+	D1(printk(KERN_DEBUG "Writing replacement hole node for ino #%lu from offset 0x%x to 0x%x\n",
+		  inode->i_ino, start, end));
+	
+	memset(&ri, 0, sizeof(ri));
+
+	if(fn->frags > 1) {
+		size_t readlen;
+		__u32 crc;
+		/* It's partially obsoleted by a later write. So we have to 
+		   write it out again with the _same_ version as before */
+		ret = c->mtd->read(c->mtd, fn->raw->flash_offset & ~3, sizeof(ri), &readlen, (char *)&ri);
+		if (readlen != sizeof(ri) || ret) {
+			printk(KERN_WARNING "Node read failed in jffs2_garbage_collect_hole. Ret %d, retlen %d. Data will be lost by writing new hold node\n", ret, readlen);
+			goto fill;
+		}
+		if (ri.nodetype != JFFS2_NODETYPE_INODE) {
+			printk(KERN_WARNING "jffs2_garbage_collect_hole: Node at 0x%08x had node type 0x%04x instead of JFFS2_NODETYPE_INODE(0x%04x)\n",
+			       fn->raw->flash_offset & ~3, ri.nodetype, JFFS2_NODETYPE_INODE);
+			return -EIO;
+		}
+		if (ri.totlen != sizeof(ri)) {
+			printk(KERN_WARNING "jffs2_garbage_collect_hole: Node at 0x%08x had totlen 0x%x instead of expected 0x%x\n",
+			       fn->raw->flash_offset & ~3, ri.totlen, sizeof(ri));
+			return -EIO;
+		}
+		crc = crc32(0, &ri, sizeof(ri)-8);
+		if (crc != ri.node_crc) {
+			printk(KERN_WARNING "jffs2_garbage_collect_hole: Node at 0x%08x had CRC 0x%08x which doesn't match calculated CRC 0x%08x\n",
+			       fn->raw->flash_offset & ~3, ri.node_crc, crc);
+			/* FIXME: We could possibly deal with this by writing new holes for each frag */
+			printk(KERN_WARNING "Data in the range 0x%08x to 0x%08x of inode #%lu will be lost\n", 
+			       start, end, inode->i_ino);
+			goto fill;
+		}
+		if (ri.compr != JFFS2_COMPR_ZERO) {
+			printk(KERN_WARNING "jffs2_garbage_collect_hole: Node 0x%08x wasn't a hole node!\n", fn->raw->flash_offset & ~3);
+			printk(KERN_WARNING "Data in the range 0x%08x to 0x%08x of inode #%lu will be lost\n", 
+			       start, end, inode->i_ino);
+			goto fill;
+		}
+	} else {
+	fill:
+		ri.magic = JFFS2_MAGIC_BITMASK;
+		ri.nodetype = JFFS2_NODETYPE_INODE;
+		ri.totlen = sizeof(ri);
+		ri.hdr_crc = crc32(0, &ri, sizeof(struct jffs2_unknown_node)-4);
+
+		ri.ino = inode->i_ino;
+		ri.version = ++f->highest_version;
+		ri.offset = start;
+		ri.dsize = end - start;
+		ri.csize = 0;
+		ri.compr = JFFS2_COMPR_ZERO;
+	}
+	ri.mode = inode->i_mode;
+	ri.uid = inode->i_uid;
+	ri.gid = inode->i_gid;
+	ri.isize = inode->i_size;
+	ri.atime = inode->i_atime;
+	ri.ctime = inode->i_ctime;
+	ri.mtime = inode->i_mtime;
+	ri.data_crc = 0;
+	ri.node_crc = crc32(0, &ri, sizeof(ri)-8);
+
+	ret = jffs2_reserve_space_gc(c, sizeof(ri), &phys_ofs, &alloclen);
+	if (ret) {
+		printk(KERN_WARNING "jffs2_reserve_space_gc of %d bytes for garbage_collect_hole failed: %d\n",
+		       sizeof(ri), ret);
+		return ret;
+	}
+	new_fn = jffs2_write_dnode(inode, &ri, NULL, 0, phys_ofs, NULL);
+
+	if (IS_ERR(new_fn)) {
+		printk(KERN_WARNING "Error writing new hole node: %ld\n", PTR_ERR(new_fn));
+		return PTR_ERR(new_fn);
+	}
+	if (ri.version == f->highest_version) {
+		jffs2_add_full_dnode_to_inode(c, f, new_fn);
+		if (f->metadata) {
+			jffs2_mark_node_obsolete(c, f->metadata->raw);
+			jffs2_free_full_dnode(f->metadata);
+			f->metadata = NULL;
+		}
+		return 0;
+	}
+
+	/* 
+	 * We should only get here in the case where the node we are
+	 * replacing had more than one frag, so we kept the same version
+	 * number as before. (Except in case of error -- see 'goto fill;' 
+	 * above.)
+	 */
+	D1(if(fn->frags <= 1) {
+		printk(KERN_WARNING "jffs2_garbage_collect_hole: Replacing fn with %d frag(s) but new ver %d != highest_version %d of ino #%d\n",
+		       fn->frags, ri.version, f->highest_version, ri.ino);
+	});
+
+	for (frag = f->fraglist; frag; frag = frag->next) {
+		if (frag->ofs > fn->size + fn->ofs)
+			break;
+		if (frag->node == fn) {
+			frag->node = new_fn;
+			new_fn->frags++;
+			fn->frags--;
+		}
+	}
+	if (fn->frags) {
+		printk(KERN_WARNING "jffs2_garbage_collect_hole: Old node still has frags!\n");
+		BUG();
+	}
+	if (!new_fn->frags) {
+		printk(KERN_WARNING "jffs2_garbage_collect_hole: New node has no frags!\n");
+		BUG();
+	}
+		
+	jffs2_mark_node_obsolete(c, fn->raw);
+	jffs2_free_full_dnode(fn);
+	
+	return 0;
+}
+
+static int jffs2_garbage_collect_dnode(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
+				       struct inode *inode, struct jffs2_full_dnode *fn,
+				       __u32 start, __u32 end)
+{
+	struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+	struct jffs2_full_dnode *new_fn;
+	struct jffs2_raw_inode ri;
+	__u32 alloclen, phys_ofs, offset, orig_end;	
+	int ret = 0;
+	unsigned char *comprbuf = NULL, *writebuf;
+	struct page *pg;
+	unsigned char *pg_ptr;
+
+
+	memset(&ri, 0, sizeof(ri));
+
+	D1(printk(KERN_DEBUG "Writing replacement dnode for ino #%lu from offset 0x%x to 0x%x\n",
+		  inode->i_ino, start, end));
+
+	orig_end = end;
+
+
+	/* If we're looking at the last node in the block we're
+	   garbage-collecting, we allow ourselves to merge as if the
+	   block was already erasing. We're likely to be GC'ing a
+	   partial page, and the next block we GC is likely to have
+	   the other half of this page right at the beginning, which
+	   means we'd expand it _then_, as nr_erasing_blocks would have
+	   increased since we checked, and in doing so would obsolete 
+	   the partial node which we'd have written here. Meaning that 
+	   the GC would churn and churn, and just leave dirty blocks in
+	   it's wake.
+	*/
+	if(c->nr_free_blocks + c->nr_erasing_blocks > JFFS2_RESERVED_BLOCKS_GCMERGE - (fn->raw->next_phys?0:1)) {
+		/* Shitloads of space */
+		/* FIXME: Integrate this properly with GC calculations */
+		start &= ~(PAGE_CACHE_SIZE-1);
+		end = min_t(__u32, start + PAGE_CACHE_SIZE, inode->i_size);
+		D1(printk(KERN_DEBUG "Plenty of free space, so expanding to write from offset 0x%x to 0x%x\n",
+			  start, end));
+		if (end < orig_end) {
+			printk(KERN_WARNING "Eep. jffs2_garbage_collect_dnode extended node to write, but it got smaller: start 0x%x, orig_end 0x%x, end 0x%x\n", start, orig_end, end);
+			end = orig_end;
+		}
+	}
+	
+	/* First, use readpage() to read the appropriate page into the page cache */
+	/* Q: What happens if we actually try to GC the _same_ page for which commit_write()
+	 *    triggered garbage collection in the first place?
+	 * A: I _think_ it's OK. read_cache_page shouldn't deadlock, we'll write out the
+	 *    page OK. We'll actually write it out again in commit_write, which is a little
+	 *    suboptimal, but at least we're correct.
+	 */
+	pg = read_cache_page(inode->i_mapping, start >> PAGE_CACHE_SHIFT, (void *)jffs2_do_readpage_unlock, inode);
+
+	if (IS_ERR(pg)) {
+		printk(KERN_WARNING "read_cache_page() returned error: %ld\n", PTR_ERR(pg));
+		return PTR_ERR(pg);
+	}
+	pg_ptr = (char *)kmap(pg);
+	comprbuf = kmalloc(end - start, GFP_KERNEL);
+
+	offset = start;
+	while(offset < orig_end) {
+		__u32 datalen;
+		__u32 cdatalen;
+		char comprtype = JFFS2_COMPR_NONE;
+
+		ret = jffs2_reserve_space_gc(c, sizeof(ri) + JFFS2_MIN_DATA_LEN, &phys_ofs, &alloclen);
+
+		if (ret) {
+			printk(KERN_WARNING "jffs2_reserve_space_gc of %d bytes for garbage_collect_dnode failed: %d\n",
+			       sizeof(ri)+ JFFS2_MIN_DATA_LEN, ret);
+			break;
+		}
+		cdatalen = min(alloclen - sizeof(ri), end - offset);
+		datalen = end - offset;
+
+		writebuf = pg_ptr + (offset & (PAGE_CACHE_SIZE -1));
+
+		if (comprbuf) {
+			comprtype = jffs2_compress(writebuf, comprbuf, &datalen, &cdatalen);
+		}
+		if (comprtype) {
+			writebuf = comprbuf;
+		} else {
+			datalen = cdatalen;
+		}
+		ri.magic = JFFS2_MAGIC_BITMASK;
+		ri.nodetype = JFFS2_NODETYPE_INODE;
+		ri.totlen = sizeof(ri) + cdatalen;
+		ri.hdr_crc = crc32(0, &ri, sizeof(struct jffs2_unknown_node)-4);
+
+		ri.ino = inode->i_ino;
+		ri.version = ++f->highest_version;
+		ri.mode = inode->i_mode;
+		ri.uid = inode->i_uid;
+		ri.gid = inode->i_gid;
+		ri.isize = inode->i_size;
+		ri.atime = inode->i_atime;
+		ri.ctime = inode->i_ctime;
+		ri.mtime = inode->i_mtime;
+		ri.offset = offset;
+		ri.csize = cdatalen;
+		ri.dsize = datalen;
+		ri.compr = comprtype;
+		ri.node_crc = crc32(0, &ri, sizeof(ri)-8);
+		ri.data_crc = crc32(0, writebuf, cdatalen);
+	
+		new_fn = jffs2_write_dnode(inode, &ri, writebuf, cdatalen, phys_ofs, NULL);
+
+		if (IS_ERR(new_fn)) {
+			printk(KERN_WARNING "Error writing new dnode: %ld\n", PTR_ERR(new_fn));
+			ret = PTR_ERR(new_fn);
+			break;
+		}
+		ret = jffs2_add_full_dnode_to_inode(c, f, new_fn);
+		offset += datalen;
+		if (f->metadata) {
+			jffs2_mark_node_obsolete(c, f->metadata->raw);
+			jffs2_free_full_dnode(f->metadata);
+			f->metadata = NULL;
+		}
+	}
+	if (comprbuf) kfree(comprbuf);
+
+	kunmap(pg);
+	/* XXX: Does the page get freed automatically? */
+	/* AAA: Judging by the unmount getting stuck in __wait_on_page, nope. */
+	page_cache_release(pg);
+	return ret;
+}
+
diff --git a/fs/jffs2/histo.h b/fs/jffs2/histo.h
new file mode 100644
index 00000000000000..84f184f0836f2a
--- /dev/null
+++ b/fs/jffs2/histo.h
@@ -0,0 +1,3 @@
+/* This file provides the bit-probabilities for the input file */
+#define BIT_DIVIDER 629 
+static int bits[9] = { 179,167,183,165,159,198,178,119,}; /* ia32 .so files */
diff --git a/fs/jffs2/histo_mips.h b/fs/jffs2/histo_mips.h
new file mode 100644
index 00000000000000..9a443268d88576
--- /dev/null
+++ b/fs/jffs2/histo_mips.h
@@ -0,0 +1,2 @@
+#define BIT_DIVIDER_MIPS 1043 
+static int bits_mips[8] = { 277,249,290,267,229,341,212,241}; /* mips32 */
diff --git a/fs/jffs2/ioctl.c b/fs/jffs2/ioctl.c
new file mode 100644
index 00000000000000..38a52d3b252a24
--- /dev/null
+++ b/fs/jffs2/ioctl.c
@@ -0,0 +1,47 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright (C) 2001 Red Hat, Inc.
+ *
+ * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
+ *
+ * The original JFFS, from which the design for JFFS2 was derived,
+ * was designed and implemented by Axis Communications AB.
+ *
+ * The contents of this file are subject to the Red Hat eCos Public
+ * License Version 1.1 (the "Licence"); you may not use this file
+ * except in compliance with the Licence.  You may obtain a copy of
+ * the Licence at http://www.redhat.com/
+ *
+ * Software distributed under the Licence is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing rights and
+ * limitations under the Licence.
+ *
+ * The Original Code is JFFS2 - Journalling Flash File System, version 2
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in
+ * which case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the RHEPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the RHEPL or the GPL.
+ *
+ * $Id: ioctl.c,v 1.5 2001/03/15 15:38:24 dwmw2 Exp $
+ *
+ */
+
+#include <linux/fs.h>
+
+int jffs2_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, 
+		unsigned long arg)
+{
+	/* Later, this will provide for lsattr.jffs2 and chattr.jffs2, which
+	   will include compression support etc. */
+	return -EINVAL;
+}
+	
diff --git a/fs/jffs2/malloc.c b/fs/jffs2/malloc.c
new file mode 100644
index 00000000000000..6ce14c9e5010ff
--- /dev/null
+++ b/fs/jffs2/malloc.c
@@ -0,0 +1,220 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright (C) 2001 Red Hat, Inc.
+ *
+ * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
+ *
+ * The original JFFS, from which the design for JFFS2 was derived,
+ * was designed and implemented by Axis Communications AB.
+ *
+ * The contents of this file are subject to the Red Hat eCos Public
+ * License Version 1.1 (the "Licence"); you may not use this file
+ * except in compliance with the Licence.  You may obtain a copy of
+ * the Licence at http://www.redhat.com/
+ *
+ * Software distributed under the Licence is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing rights and
+ * limitations under the Licence.
+ *
+ * The Original Code is JFFS2 - Journalling Flash File System, version 2
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in
+ * which case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the RHEPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the RHEPL or the GPL.
+ *
+ * $Id: malloc.c,v 1.16 2001/03/15 15:38:24 dwmw2 Exp $
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/jffs2.h>
+#include "nodelist.h"
+
+#if 0
+#define JFFS2_SLAB_POISON SLAB_POISON
+#else
+#define JFFS2_SLAB_POISON 0
+#endif
+
+/* These are initialised to NULL in the kernel startup code.
+   If you're porting to other operating systems, beware */
+static kmem_cache_t *full_dnode_slab;
+static kmem_cache_t *raw_dirent_slab;
+static kmem_cache_t *raw_inode_slab;
+static kmem_cache_t *tmp_dnode_info_slab;
+static kmem_cache_t *raw_node_ref_slab;
+static kmem_cache_t *node_frag_slab;
+static kmem_cache_t *inode_cache_slab;
+
+void jffs2_free_tmp_dnode_info_list(struct jffs2_tmp_dnode_info *tn)
+{
+	struct jffs2_tmp_dnode_info *next;
+
+	while (tn) {
+		next = tn;
+		tn = tn->next;
+		jffs2_free_full_dnode(next->fn);
+		jffs2_free_tmp_dnode_info(next);
+	}
+}
+
+void jffs2_free_full_dirent_list(struct jffs2_full_dirent *fd)
+{
+	struct jffs2_full_dirent *next;
+
+	while (fd) {
+		next = fd->next;
+		jffs2_free_full_dirent(fd);
+		fd = next;
+	}
+}
+
+int __init jffs2_create_slab_caches(void)
+{
+	full_dnode_slab = kmem_cache_create("jffs2_full_dnode", sizeof(struct jffs2_full_dnode), 0, JFFS2_SLAB_POISON, NULL, NULL);
+	if (!full_dnode_slab)
+		goto err;
+
+	raw_dirent_slab = kmem_cache_create("jffs2_raw_dirent", sizeof(struct jffs2_raw_dirent), 0, JFFS2_SLAB_POISON, NULL, NULL);
+	if (!raw_dirent_slab)
+		goto err;
+
+	raw_inode_slab = kmem_cache_create("jffs2_raw_inode", sizeof(struct jffs2_raw_inode), 0, JFFS2_SLAB_POISON, NULL, NULL);
+	if (!raw_inode_slab)
+		goto err;
+
+	tmp_dnode_info_slab = kmem_cache_create("jffs2_tmp_dnode", sizeof(struct jffs2_tmp_dnode_info), 0, JFFS2_SLAB_POISON, NULL, NULL);
+	if (!tmp_dnode_info_slab)
+		goto err;
+
+	raw_node_ref_slab = kmem_cache_create("jffs2_raw_node_ref", sizeof(struct jffs2_raw_node_ref), 0, JFFS2_SLAB_POISON, NULL, NULL);
+	if (!raw_node_ref_slab)
+		goto err;
+
+	node_frag_slab = kmem_cache_create("jffs2_node_frag", sizeof(struct jffs2_node_frag), 0, JFFS2_SLAB_POISON, NULL, NULL);
+	if (!node_frag_slab)
+		goto err;
+
+	inode_cache_slab = kmem_cache_create("jffs2_inode_cache", sizeof(struct jffs2_inode_cache), 0, JFFS2_SLAB_POISON, NULL, NULL);
+
+	if (inode_cache_slab)
+		return 0;
+ err:
+	jffs2_destroy_slab_caches();
+	return -ENOMEM;
+}
+
+void jffs2_destroy_slab_caches(void)
+{
+	if(full_dnode_slab)
+		kmem_cache_destroy(full_dnode_slab);
+	if(raw_dirent_slab)
+		kmem_cache_destroy(raw_dirent_slab);
+	if(raw_inode_slab)
+		kmem_cache_destroy(raw_inode_slab);
+	if(tmp_dnode_info_slab)
+		kmem_cache_destroy(tmp_dnode_info_slab);
+	if(raw_node_ref_slab)
+		kmem_cache_destroy(raw_node_ref_slab);
+	if(node_frag_slab)
+		kmem_cache_destroy(node_frag_slab);
+	if(inode_cache_slab)
+		kmem_cache_destroy(inode_cache_slab);
+
+}
+
+struct jffs2_full_dirent *jffs2_alloc_full_dirent(int namesize)
+{
+	return kmalloc(sizeof(struct jffs2_full_dirent) + namesize, GFP_KERNEL);
+}
+
+void jffs2_free_full_dirent(struct jffs2_full_dirent *x)
+{
+	kfree(x);
+}
+
+struct jffs2_full_dnode *jffs2_alloc_full_dnode(void)
+{
+	void *ret = kmem_cache_alloc(full_dnode_slab, GFP_KERNEL);
+	return ret;
+}
+
+void jffs2_free_full_dnode(struct jffs2_full_dnode *x)
+{
+	kmem_cache_free(full_dnode_slab, x);
+}
+
+struct jffs2_raw_dirent *jffs2_alloc_raw_dirent(void)
+{
+	return kmem_cache_alloc(raw_dirent_slab, GFP_KERNEL);
+}
+
+void jffs2_free_raw_dirent(struct jffs2_raw_dirent *x)
+{
+	kmem_cache_free(raw_dirent_slab, x);
+}
+
+struct jffs2_raw_inode *jffs2_alloc_raw_inode(void)
+{
+	return kmem_cache_alloc(raw_inode_slab, GFP_KERNEL);
+}
+
+void jffs2_free_raw_inode(struct jffs2_raw_inode *x)
+{
+	kmem_cache_free(raw_inode_slab, x);
+}
+
+struct jffs2_tmp_dnode_info *jffs2_alloc_tmp_dnode_info(void)
+{
+	return kmem_cache_alloc(tmp_dnode_info_slab, GFP_KERNEL);
+}
+
+void jffs2_free_tmp_dnode_info(struct jffs2_tmp_dnode_info *x)
+{
+	kmem_cache_free(tmp_dnode_info_slab, x);
+}
+
+struct jffs2_raw_node_ref *jffs2_alloc_raw_node_ref(void)
+{
+	return kmem_cache_alloc(raw_node_ref_slab, GFP_KERNEL);
+}
+
+void jffs2_free_raw_node_ref(struct jffs2_raw_node_ref *x)
+{
+	kmem_cache_free(raw_node_ref_slab, x);
+}
+
+struct jffs2_node_frag *jffs2_alloc_node_frag(void)
+{
+	return kmem_cache_alloc(node_frag_slab, GFP_KERNEL);
+}
+
+void jffs2_free_node_frag(struct jffs2_node_frag *x)
+{
+	kmem_cache_free(node_frag_slab, x);
+}
+
+struct jffs2_inode_cache *jffs2_alloc_inode_cache(void)
+{
+	struct jffs2_inode_cache *ret = kmem_cache_alloc(inode_cache_slab, GFP_KERNEL);
+	D1(printk(KERN_DEBUG "Allocated inocache at %p\n", ret));
+	return ret;
+}
+
+void jffs2_free_inode_cache(struct jffs2_inode_cache *x)
+{
+	D1(printk(KERN_DEBUG "Freeing inocache at %p\n", x));
+	kmem_cache_free(inode_cache_slab, x);
+}
+
diff --git a/fs/jffs2/nodelist.c b/fs/jffs2/nodelist.c
new file mode 100644
index 00000000000000..80e8800cb4ba8b
--- /dev/null
+++ b/fs/jffs2/nodelist.c
@@ -0,0 +1,354 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright (C) 2001, 2002 Red Hat, Inc.
+ *
+ * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
+ *
+ * The original JFFS, from which the design for JFFS2 was derived,
+ * was designed and implemented by Axis Communications AB.
+ *
+ * The contents of this file are subject to the Red Hat eCos Public
+ * License Version 1.1 (the "Licence"); you may not use this file
+ * except in compliance with the Licence.  You may obtain a copy of
+ * the Licence at http://www.redhat.com/
+ *
+ * Software distributed under the Licence is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing rights and
+ * limitations under the Licence.
+ *
+ * The Original Code is JFFS2 - Journalling Flash File System, version 2
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in
+ * which case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the RHEPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the RHEPL or the GPL.
+ *
+ * $Id: nodelist.c,v 1.30.2.6 2003/02/24 21:49:33 dwmw2 Exp $
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/jffs2.h>
+#include <linux/fs.h>
+#include <linux/mtd/mtd.h>
+#include "nodelist.h"
+
+void jffs2_add_fd_to_list(struct jffs2_sb_info *c, struct jffs2_full_dirent *new, struct jffs2_full_dirent **list)
+{
+	struct jffs2_full_dirent **prev = list;
+	D1(printk(KERN_DEBUG "jffs2_add_fd_to_list( %p, %p (->%p))\n", new, list, *list));
+
+	while ((*prev) && (*prev)->nhash <= new->nhash) {
+		if ((*prev)->nhash == new->nhash && !strcmp((*prev)->name, new->name)) {
+			/* Duplicate. Free one */
+			if (new->version < (*prev)->version) {
+				D1(printk(KERN_DEBUG "Eep! Marking new dirent node obsolete\n"));
+				D1(printk(KERN_DEBUG "New dirent is \"%s\"->ino #%u. Old is \"%s\"->ino #%u\n", new->name, new->ino, (*prev)->name, (*prev)->ino));
+				jffs2_mark_node_obsolete(c, new->raw);
+				jffs2_free_full_dirent(new);
+			} else {
+				D1(printk(KERN_DEBUG "Marking old dirent node (ino #%u) obsolete\n", (*prev)->ino));
+				new->next = (*prev)->next;
+				jffs2_mark_node_obsolete(c, ((*prev)->raw));
+				jffs2_free_full_dirent(*prev);
+				*prev = new;
+			}
+			goto out;
+		}
+		prev = &((*prev)->next);
+	}
+	new->next = *prev;
+	*prev = new;
+
+ out:
+	D2(while(*list) {
+		printk(KERN_DEBUG "Dirent \"%s\" (hash 0x%08x, ino #%u\n", (*list)->name, (*list)->nhash, (*list)->ino);
+		list = &(*list)->next;
+	});
+}
+
+/* Put a new tmp_dnode_info into the list, keeping the list in 
+   order of increasing version
+*/
+void jffs2_add_tn_to_list(struct jffs2_tmp_dnode_info *tn, struct jffs2_tmp_dnode_info **list)
+{
+	struct jffs2_tmp_dnode_info **prev = list;
+	
+	while ((*prev) && (*prev)->version < tn->version) {
+		prev = &((*prev)->next);
+	}
+	tn->next = (*prev);
+        *prev = tn;
+}
+
+/* Get tmp_dnode_info and full_dirent for all non-obsolete nodes associated
+   with this ino, returning the former in order of version */
+
+int jffs2_get_inode_nodes(struct jffs2_sb_info *c, ino_t ino, struct jffs2_inode_info *f,
+			  struct jffs2_tmp_dnode_info **tnp, struct jffs2_full_dirent **fdp,
+			  __u32 *highest_version, __u32 *latest_mctime,
+			  __u32 *mctime_ver)
+{
+	struct jffs2_raw_node_ref *ref = f->inocache->nodes;
+	struct jffs2_tmp_dnode_info *tn, *ret_tn = NULL;
+	struct jffs2_full_dirent *fd, *ret_fd = NULL;
+
+	union jffs2_node_union node;
+	size_t retlen;
+	int err;
+
+	*mctime_ver = 0;
+
+	D1(printk(KERN_DEBUG "jffs2_get_inode_nodes(): ino #%lu\n", ino));
+	if (!f->inocache->nodes) {
+		printk(KERN_WARNING "Eep. no nodes for ino #%lu\n", ino);
+	}
+	for (ref = f->inocache->nodes; ref && ref->next_in_ino; ref = ref->next_in_ino) {
+		/* Work out whether it's a data node or a dirent node */
+		if (ref->flash_offset & 1) {
+			/* FIXME: On NAND flash we may need to read these */
+			D1(printk(KERN_DEBUG "node at 0x%08x is obsoleted. Ignoring.\n", ref->flash_offset &~3));
+			continue;
+		}
+		err = c->mtd->read(c->mtd, (ref->flash_offset & ~3), min(ref->totlen, sizeof(node)), &retlen, (void *)&node);
+		if (err) {
+			printk(KERN_WARNING "error %d reading node at 0x%08x in get_inode_nodes()\n", err, (ref->flash_offset) & ~3);
+			goto free_out;
+		}
+			
+
+			/* Check we've managed to read at least the common node header */
+		if (retlen < min(ref->totlen, sizeof(node.u))) {
+			printk(KERN_WARNING "short read in get_inode_nodes()\n");
+			err = -EIO;
+			goto free_out;
+		}
+			
+		switch (node.u.nodetype) {
+		case JFFS2_NODETYPE_DIRENT:
+			D1(printk(KERN_DEBUG "Node at %08x is a dirent node\n", ref->flash_offset &~3));
+			if (retlen < sizeof(node.d)) {
+				printk(KERN_WARNING "short read in get_inode_nodes()\n");
+				err = -EIO;
+				goto free_out;
+			}
+			if (node.d.version > *highest_version)
+				*highest_version = node.d.version;
+			if (ref->flash_offset & 1) {
+				/* Obsoleted */
+				continue;
+			}
+			fd = jffs2_alloc_full_dirent(node.d.nsize+1);
+			if (!fd) {
+				err = -ENOMEM;
+				goto free_out;
+			}
+			memset(fd,0,sizeof(struct jffs2_full_dirent) + node.d.nsize+1);
+			fd->raw = ref;
+			fd->version = node.d.version;
+			fd->ino = node.d.ino;
+			fd->type = node.d.type;
+
+			/* Pick out the mctime of the latest dirent */
+			if(fd->version > *mctime_ver) {
+				*mctime_ver = fd->version;
+				*latest_mctime = node.d.mctime;
+			}
+
+			/* memcpy as much of the name as possible from the raw
+			   dirent we've already read from the flash
+			*/
+			if (retlen > sizeof(struct jffs2_raw_dirent))
+				memcpy(&fd->name[0], &node.d.name[0], min((__u32)node.d.nsize, (retlen-sizeof(struct jffs2_raw_dirent))));
+				
+			/* Do we need to copy any more of the name directly
+			   from the flash?
+			*/
+			if (node.d.nsize + sizeof(struct jffs2_raw_dirent) > retlen) {
+				int already = retlen - sizeof(struct jffs2_raw_dirent);
+					
+				err = c->mtd->read(c->mtd, (ref->flash_offset & ~3) + retlen, 
+						   node.d.nsize - already, &retlen, &fd->name[already]);
+				if (!err && retlen != node.d.nsize - already)
+					err = -EIO;
+					
+				if (err) {
+					printk(KERN_WARNING "Read remainder of name in jffs2_get_inode_nodes(): error %d\n", err);
+					jffs2_free_full_dirent(fd);
+					goto free_out;
+				}
+			}
+			fd->nhash = full_name_hash(fd->name, node.d.nsize);
+			fd->next = NULL;
+				/* Wheee. We now have a complete jffs2_full_dirent structure, with
+				   the name in it and everything. Link it into the list 
+				*/
+			D1(printk(KERN_DEBUG "Adding fd \"%s\", ino #%u\n", fd->name, fd->ino));
+			jffs2_add_fd_to_list(c, fd, &ret_fd);
+			break;
+
+		case JFFS2_NODETYPE_INODE:
+			D1(printk(KERN_DEBUG "Node at %08x is a data node\n", ref->flash_offset &~3));
+			if (retlen < sizeof(node.i)) {
+				printk(KERN_WARNING "read too short for dnode\n");
+				err = -EIO;
+				goto free_out;
+			}
+			if (node.i.version > *highest_version)
+				*highest_version = node.i.version;
+			D1(printk(KERN_DEBUG "version %d, highest_version now %d\n", node.i.version, *highest_version));
+
+			if (ref->flash_offset & 1) {
+				D1(printk(KERN_DEBUG "obsoleted\n"));
+				/* Obsoleted */
+				continue;
+			}
+			tn = jffs2_alloc_tmp_dnode_info();
+			if (!tn) {
+				D1(printk(KERN_DEBUG "alloc tn failed\n"));
+				err = -ENOMEM;
+				goto free_out;
+			}
+
+			tn->fn = jffs2_alloc_full_dnode();
+			if (!tn->fn) {
+				D1(printk(KERN_DEBUG "alloc fn failed\n"));
+				err = -ENOMEM;
+				jffs2_free_tmp_dnode_info(tn);
+				goto free_out;
+			}
+			tn->version = node.i.version;
+			tn->fn->ofs = node.i.offset;
+			/* There was a bug where we wrote hole nodes out with
+			   csize/dsize swapped. Deal with it */
+			if (node.i.compr == JFFS2_COMPR_ZERO && !node.i.dsize && node.i.csize)
+				tn->fn->size = node.i.csize;
+			else // normal case...
+				tn->fn->size = node.i.dsize;
+			tn->fn->raw = ref;
+			D1(printk(KERN_DEBUG "dnode @%08x: ver %u, offset %04x, dsize %04x\n", ref->flash_offset &~3, node.i.version, node.i.offset, node.i.dsize));
+			jffs2_add_tn_to_list(tn, &ret_tn);
+			break;
+
+		default:
+			switch(node.u.nodetype & JFFS2_COMPAT_MASK) {
+			case JFFS2_FEATURE_INCOMPAT:
+				printk(KERN_NOTICE "Unknown INCOMPAT nodetype %04X at %08X\n", node.u.nodetype, ref->flash_offset & ~3);
+				break;
+			case JFFS2_FEATURE_ROCOMPAT:
+				printk(KERN_NOTICE "Unknown ROCOMPAT nodetype %04X at %08X\n", node.u.nodetype, ref->flash_offset & ~3);
+				break;
+			case JFFS2_FEATURE_RWCOMPAT_COPY:
+				printk(KERN_NOTICE "Unknown RWCOMPAT_COPY nodetype %04X at %08X\n", node.u.nodetype, ref->flash_offset & ~3);
+				break;
+			case JFFS2_FEATURE_RWCOMPAT_DELETE:
+				printk(KERN_NOTICE "Unknown RWCOMPAT_DELETE nodetype %04X at %08X\n", node.u.nodetype, ref->flash_offset & ~3);
+				break;
+			}
+		}
+	}
+	*tnp = ret_tn;
+	*fdp = ret_fd;
+
+	return 0;
+
+ free_out:
+	jffs2_free_tmp_dnode_info_list(ret_tn);
+	jffs2_free_full_dirent_list(ret_fd);
+	return err;
+}
+
+struct jffs2_inode_cache *jffs2_get_ino_cache(struct jffs2_sb_info *c, uint32_t ino)
+{
+	struct jffs2_inode_cache *ret;
+
+	D2(printk(KERN_DEBUG "jffs2_get_ino_cache(): ino %u\n", ino));
+	spin_lock (&c->inocache_lock);
+	ret = c->inocache_list[ino % INOCACHE_HASHSIZE];
+	while (ret && ret->ino < ino) {
+		ret = ret->next;
+	}
+
+	spin_unlock(&c->inocache_lock);
+
+	if (ret && ret->ino != ino)
+		ret = NULL;
+
+	D2(printk(KERN_DEBUG "jffs2_get_ino_cache found %p for ino %u\n", ret, ino));
+	return ret;
+}
+
+void jffs2_add_ino_cache (struct jffs2_sb_info *c, struct jffs2_inode_cache *new)
+{
+	struct jffs2_inode_cache **prev;
+	D2(printk(KERN_DEBUG "jffs2_add_ino_cache: Add %p (ino #%u)\n", new, new->ino));
+	spin_lock(&c->inocache_lock);
+	
+	prev = &c->inocache_list[new->ino % INOCACHE_HASHSIZE];
+
+	while ((*prev) && (*prev)->ino < new->ino) {
+		prev = &(*prev)->next;
+	}
+	new->next = *prev;
+	*prev = new;
+	spin_unlock(&c->inocache_lock);
+}
+
+void jffs2_del_ino_cache(struct jffs2_sb_info *c, struct jffs2_inode_cache *old)
+{
+	struct jffs2_inode_cache **prev;
+	D2(printk(KERN_DEBUG "jffs2_del_ino_cache: Del %p (ino #%u)\n", old, old->ino));
+	spin_lock(&c->inocache_lock);
+	
+	prev = &c->inocache_list[old->ino % INOCACHE_HASHSIZE];
+	
+	while ((*prev) && (*prev)->ino < old->ino) {
+		prev = &(*prev)->next;
+	}
+	if ((*prev) == old) {
+		*prev = old->next;
+	}
+	spin_unlock(&c->inocache_lock);
+}
+
+void jffs2_free_ino_caches(struct jffs2_sb_info *c)
+{
+	int i;
+	struct jffs2_inode_cache *this, *next;
+	
+	for (i=0; i<INOCACHE_HASHSIZE; i++) {
+		this = c->inocache_list[i];
+		while (this) {
+			next = this->next;
+			D2(printk(KERN_DEBUG "jffs2_free_ino_caches: Freeing ino #%u at %p\n", this->ino, this));
+			jffs2_free_inode_cache(this);
+			this = next;
+		}
+		c->inocache_list[i] = NULL;
+	}
+}
+
+void jffs2_free_raw_node_refs(struct jffs2_sb_info *c)
+{
+	int i;
+	struct jffs2_raw_node_ref *this, *next;
+
+	for (i=0; i<c->nr_blocks; i++) {
+		this = c->blocks[i].first_node;
+		while(this) {
+			next = this->next_phys;
+			jffs2_free_raw_node_ref(this);
+			this = next;
+		}
+		c->blocks[i].first_node = c->blocks[i].last_node = NULL;
+	}
+}
+	
diff --git a/fs/jffs2/nodelist.h b/fs/jffs2/nodelist.h
new file mode 100644
index 00000000000000..795e1b48a5e9a3
--- /dev/null
+++ b/fs/jffs2/nodelist.h
@@ -0,0 +1,354 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright (C) 2001 Red Hat, Inc.
+ *
+ * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
+ *
+ * The original JFFS, from which the design for JFFS2 was derived,
+ * was designed and implemented by Axis Communications AB.
+ *
+ * The contents of this file are subject to the Red Hat eCos Public
+ * License Version 1.1 (the "Licence"); you may not use this file
+ * except in compliance with the Licence.  You may obtain a copy of
+ * the Licence at http://www.redhat.com/
+ *
+ * Software distributed under the Licence is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing rights and
+ * limitations under the Licence.
+ *
+ * The Original Code is JFFS2 - Journalling Flash File System, version 2
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in
+ * which case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the RHEPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the RHEPL or the GPL.
+ *
+ * $Id: nodelist.h,v 1.46.2.5 2003/11/02 13:54:20 dwmw2 Exp $
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/fs.h>
+
+#include <linux/jffs2_fs_sb.h>
+#include <linux/jffs2_fs_i.h>
+
+#ifndef CONFIG_JFFS2_FS_DEBUG
+#define CONFIG_JFFS2_FS_DEBUG 2
+#endif
+
+#if CONFIG_JFFS2_FS_DEBUG > 0
+#define D1(x) x
+#else
+#define D1(x)
+#endif
+
+#if CONFIG_JFFS2_FS_DEBUG > 1
+#define D2(x) x
+#else
+#define D2(x)
+#endif
+
+/*
+  This is all we need to keep in-core for each raw node during normal
+  operation. As and when we do read_inode on a particular inode, we can
+  scan the nodes which are listed for it and build up a proper map of 
+  which nodes are currently valid. JFFSv1 always used to keep that whole
+  map in core for each inode.
+*/
+struct jffs2_raw_node_ref
+{
+	struct jffs2_raw_node_ref *next_in_ino; /* Points to the next raw_node_ref
+		for this inode. If this is the last, it points to the inode_cache
+		for this inode instead. The inode_cache will have NULL in the first
+		word so you know when you've got there :) */
+	struct jffs2_raw_node_ref *next_phys;
+	//	__u32 ino;
+	__u32 flash_offset;
+	__u32 totlen;
+//	__u16 nodetype;
+	
+        /* flash_offset & 3 always has to be zero, because nodes are
+	   always aligned at 4 bytes. So we have a couple of extra bits
+	   to play with. So we set the least significant bit to 1 to
+	   signify that the node is obsoleted by later nodes.
+	*/
+};
+
+/* 
+   Used for keeping track of deletion nodes &c, which can only be marked
+   as obsolete when the node which they mark as deleted has actually been 
+   removed from the flash.
+*/
+struct jffs2_raw_node_ref_list {
+	struct jffs2_raw_node_ref *rew;
+	struct jffs2_raw_node_ref_list *next;
+};
+
+/* For each inode in the filesystem, we need to keep a record of
+   nlink, because it would be a PITA to scan the whole directory tree
+   at read_inode() time to calculate it, and to keep sufficient information
+   in the raw_node_ref (basically both parent and child inode number for 
+   dirent nodes) would take more space than this does. We also keep
+   a pointer to the first physical node which is part of this inode, too.
+*/
+struct jffs2_inode_cache {
+	struct jffs2_scan_info *scan; /* Used during scan to hold
+		temporary lists of nodes, and later must be set to
+		NULL to mark the end of the raw_node_ref->next_in_ino
+		chain. */
+	struct jffs2_inode_cache *next;
+	struct jffs2_raw_node_ref *nodes;
+	__u32 ino;
+	int nlink;
+};
+
+struct jffs2_scan_info {
+	struct jffs2_full_dirent *dents;
+	struct jffs2_tmp_dnode_info *tmpnodes;
+};
+/*
+  Larger representation of a raw node, kept in-core only when the 
+  struct inode for this particular ino is instantiated.
+*/
+
+struct jffs2_full_dnode
+{
+	struct jffs2_raw_node_ref *raw;
+	__u32 ofs; /* Don't really need this, but optimisation */
+	__u32 size;
+	__u32 frags; /* Number of fragments which currently refer
+			to this node. When this reaches zero, 
+			the node is obsolete.
+		     */
+};
+
+/* 
+   Even larger representation of a raw node, kept in-core only while
+   we're actually building up the original map of which nodes go where,
+   in read_inode()
+*/
+struct jffs2_tmp_dnode_info
+{
+	struct jffs2_tmp_dnode_info *next;
+	struct jffs2_full_dnode *fn;
+	__u32 version;
+};       
+
+struct jffs2_full_dirent
+{
+	struct jffs2_raw_node_ref *raw;
+	struct jffs2_full_dirent *next;
+	__u32 version;
+	__u32 ino; /* == zero for unlink */
+	unsigned int nhash;
+	unsigned char type;
+	unsigned char name[0];
+};
+/*
+  Fragments - used to build a map of which raw node to obtain 
+  data from for each part of the ino
+*/
+struct jffs2_node_frag
+{
+	struct jffs2_node_frag *next;
+	struct jffs2_full_dnode *node; /* NULL for holes */
+	__u32 size;
+	__u32 ofs; /* Don't really need this, but optimisation */
+};
+
+struct jffs2_eraseblock
+{
+	struct list_head list;
+	int bad_count;
+	__u32 offset;		/* of this block in the MTD */
+
+	__u32 used_size;
+	__u32 dirty_size;
+	__u32 free_size;	/* Note that sector_size - free_size
+				   is the address of the first free space */
+	struct jffs2_raw_node_ref *first_node;
+	struct jffs2_raw_node_ref *last_node;
+
+	struct jffs2_raw_node_ref *gc_node;	/* Next node to be garbage collected */
+
+	/* For deletia. When a dirent node in this eraseblock is
+	   deleted by a node elsewhere, that other node can only 
+	   be marked as obsolete when this block is actually erased.
+	   So we keep a list of the nodes to mark as obsolete when
+	   the erase is completed.
+	*/
+	// MAYBE	struct jffs2_raw_node_ref_list *deletia;
+};
+
+#define ACCT_SANITY_CHECK(c, jeb) do { \
+	if (jeb->used_size + jeb->dirty_size + jeb->free_size != c->sector_size) { \
+		printk(KERN_NOTICE "Eeep. Space accounting for block at 0x%08x is screwed\n", jeb->offset); \
+		printk(KERN_NOTICE "free 0x%08x + dirty 0x%08x + used %08x != total %08x\n", \
+		jeb->free_size, jeb->dirty_size, jeb->used_size, c->sector_size); \
+		BUG(); \
+	} \
+	if (c->used_size + c->dirty_size + c->free_size + c->erasing_size + c->bad_size != c->flash_size) { \
+		printk(KERN_NOTICE "Eeep. Space accounting superblock info is screwed\n"); \
+		printk(KERN_NOTICE "free 0x%08x + dirty 0x%08x + used %08x + erasing %08x + bad %08x != total %08x\n", \
+		c->free_size, c->dirty_size, c->used_size, c->erasing_size, c->bad_size, c->flash_size); \
+		BUG(); \
+	} \
+} while(0)
+
+#define ACCT_PARANOIA_CHECK(jeb) do { \
+		__u32 my_used_size = 0; \
+		struct jffs2_raw_node_ref *ref2 = jeb->first_node; \
+		while (ref2) { \
+			if (!(ref2->flash_offset & 1)) \
+				my_used_size += ref2->totlen; \
+			ref2 = ref2->next_phys; \
+		} \
+		if (my_used_size != jeb->used_size) { \
+			printk(KERN_NOTICE "Calculated used size %08x != stored used size %08x\n", my_used_size, jeb->used_size); \
+			BUG(); \
+		} \
+	} while(0)
+
+#define ALLOC_NORMAL	0	/* Normal allocation */
+#define ALLOC_DELETION	1	/* Deletion node. Best to allow it */
+#define ALLOC_GC	2	/* Space requested for GC. Give it or die */
+
+#define JFFS2_RESERVED_BLOCKS_BASE 3						/* Number of free blocks there must be before we... */
+#define JFFS2_RESERVED_BLOCKS_WRITE (JFFS2_RESERVED_BLOCKS_BASE + 2)		/* ... allow a normal filesystem write */
+#define JFFS2_RESERVED_BLOCKS_DELETION (JFFS2_RESERVED_BLOCKS_BASE + 1)		/* ... allow a normal filesystem deletion */
+#define JFFS2_RESERVED_BLOCKS_GCTRIGGER (JFFS2_RESERVED_BLOCKS_BASE + 3)	/* ... wake up the GC thread */
+#define JFFS2_RESERVED_BLOCKS_GCBAD (JFFS2_RESERVED_BLOCKS_BASE + 1)		/* ... pick a block from the bad_list to GC */
+#define JFFS2_RESERVED_BLOCKS_GCMERGE (JFFS2_RESERVED_BLOCKS_BASE)		/* ... merge pages when garbage collecting */
+
+
+#define PAD(x) (((x)+3)&~3)
+
+static inline struct jffs2_inode_cache *jffs2_raw_ref_to_ic(struct jffs2_raw_node_ref *raw)
+{
+	while(raw->next_in_ino) {
+		raw = raw->next_in_ino;
+	}
+
+	return ((struct jffs2_inode_cache *)raw);
+}
+
+/* nodelist.c */
+D1(void jffs2_print_frag_list(struct jffs2_inode_info *f));
+void jffs2_add_fd_to_list(struct jffs2_sb_info *c, struct jffs2_full_dirent *new, struct jffs2_full_dirent **list);
+void jffs2_add_tn_to_list(struct jffs2_tmp_dnode_info *tn, struct jffs2_tmp_dnode_info **list);
+int jffs2_get_inode_nodes(struct jffs2_sb_info *c, ino_t ino, struct jffs2_inode_info *f,
+			  struct jffs2_tmp_dnode_info **tnp, struct jffs2_full_dirent **fdp,
+			  __u32 *highest_version, __u32 *latest_mctime,
+			  __u32 *mctime_ver);
+struct jffs2_inode_cache *jffs2_get_ino_cache(struct jffs2_sb_info *c, uint32_t ino);
+void jffs2_add_ino_cache (struct jffs2_sb_info *c, struct jffs2_inode_cache *new);
+void jffs2_del_ino_cache(struct jffs2_sb_info *c, struct jffs2_inode_cache *old);
+void jffs2_free_ino_caches(struct jffs2_sb_info *c);
+void jffs2_free_raw_node_refs(struct jffs2_sb_info *c);
+
+/* nodemgmt.c */
+int jffs2_reserve_space(struct jffs2_sb_info *c, __u32 minsize, __u32 *ofs, __u32 *len, int prio);
+int jffs2_reserve_space_gc(struct jffs2_sb_info *c, __u32 minsize, __u32 *ofs, __u32 *len);
+int jffs2_add_physical_node_ref(struct jffs2_sb_info *c, struct jffs2_raw_node_ref *new, __u32 len, int dirty);
+void jffs2_complete_reservation(struct jffs2_sb_info *c);
+void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref *raw);
+
+/* write.c */
+struct inode *jffs2_new_inode (struct inode *dir_i, int mode, struct jffs2_raw_inode *ri);
+struct jffs2_full_dnode *jffs2_write_dnode(struct inode *inode, struct jffs2_raw_inode *ri, const unsigned char *data, __u32 datalen, __u32 flash_ofs,  __u32 *writelen);
+struct jffs2_full_dirent *jffs2_write_dirent(struct inode *inode, struct jffs2_raw_dirent *rd, const unsigned char *name, __u32 namelen, __u32 flash_ofs,  __u32 *writelen);
+
+/* readinode.c */
+void jffs2_truncate_fraglist (struct jffs2_sb_info *c, struct jffs2_node_frag **list, __u32 size);
+int jffs2_add_full_dnode_to_fraglist(struct jffs2_sb_info *c, struct jffs2_node_frag **list, struct jffs2_full_dnode *fn);
+int jffs2_add_full_dnode_to_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f, struct jffs2_full_dnode *fn);
+void jffs2_read_inode (struct inode *);
+void jffs2_clear_inode (struct inode *);
+
+/* malloc.c */
+void jffs2_free_tmp_dnode_info_list(struct jffs2_tmp_dnode_info *tn);
+void jffs2_free_full_dirent_list(struct jffs2_full_dirent *fd);
+
+int jffs2_create_slab_caches(void);
+void jffs2_destroy_slab_caches(void);
+
+struct jffs2_full_dirent *jffs2_alloc_full_dirent(int namesize);
+void jffs2_free_full_dirent(struct jffs2_full_dirent *);
+struct jffs2_full_dnode *jffs2_alloc_full_dnode(void);
+void jffs2_free_full_dnode(struct jffs2_full_dnode *);
+struct jffs2_raw_dirent *jffs2_alloc_raw_dirent(void);
+void jffs2_free_raw_dirent(struct jffs2_raw_dirent *);
+struct jffs2_raw_inode *jffs2_alloc_raw_inode(void);
+void jffs2_free_raw_inode(struct jffs2_raw_inode *);
+struct jffs2_tmp_dnode_info *jffs2_alloc_tmp_dnode_info(void);
+void jffs2_free_tmp_dnode_info(struct jffs2_tmp_dnode_info *);
+struct jffs2_raw_node_ref *jffs2_alloc_raw_node_ref(void);
+void jffs2_free_raw_node_ref(struct jffs2_raw_node_ref *);
+struct jffs2_node_frag *jffs2_alloc_node_frag(void);
+void jffs2_free_node_frag(struct jffs2_node_frag *);
+struct jffs2_inode_cache *jffs2_alloc_inode_cache(void);
+void jffs2_free_inode_cache(struct jffs2_inode_cache *);
+
+/* gc.c */
+int jffs2_garbage_collect_pass(struct jffs2_sb_info *c);
+
+/* background.c */
+int jffs2_start_garbage_collect_thread(struct jffs2_sb_info *c);
+void jffs2_stop_garbage_collect_thread(struct jffs2_sb_info *c);
+void jffs2_garbage_collect_trigger(struct jffs2_sb_info *c);
+
+/* dir.c */
+extern struct file_operations jffs2_dir_operations;
+extern struct inode_operations jffs2_dir_inode_operations;
+
+/* file.c */
+extern struct file_operations jffs2_file_operations;
+extern struct inode_operations jffs2_file_inode_operations;
+extern struct address_space_operations jffs2_file_address_operations;
+int jffs2_null_fsync(struct file *, struct dentry *, int);
+int jffs2_setattr (struct dentry *dentry, struct iattr *iattr);
+int jffs2_do_readpage_nolock (struct inode *inode, struct page *pg);
+int jffs2_do_readpage_unlock (struct inode *inode, struct page *pg);
+int jffs2_readpage (struct file *, struct page *);
+int jffs2_prepare_write (struct file *, struct page *, unsigned, unsigned);
+int jffs2_commit_write (struct file *, struct page *, unsigned, unsigned);
+
+/* ioctl.c */
+int jffs2_ioctl(struct inode *, struct file *, unsigned int, unsigned long);
+
+/* read.c */
+int jffs2_read_dnode(struct jffs2_sb_info *c, struct jffs2_full_dnode *fd, unsigned char *buf, int ofs, int len);
+
+/* compr.c */
+unsigned char jffs2_compress(unsigned char *data_in, unsigned char *cpage_out, 
+			     __u32 *datalen, __u32 *cdatalen);
+int jffs2_decompress(unsigned char comprtype, unsigned char *cdata_in, 
+		     unsigned char *data_out, __u32 cdatalen, __u32 datalen);
+
+/* scan.c */
+int jffs2_scan_medium(struct jffs2_sb_info *c);
+
+/* build.c */
+int jffs2_build_filesystem(struct jffs2_sb_info *c);
+
+/* symlink.c */
+extern struct inode_operations jffs2_symlink_inode_operations;
+
+/* erase.c */
+void jffs2_erase_block(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
+void jffs2_erase_pending_blocks(struct jffs2_sb_info *c);
+void jffs2_mark_erased_blocks(struct jffs2_sb_info *c);
+void jffs2_erase_pending_trigger(struct jffs2_sb_info *c);
+
+/* compr_zlib.c */
+int jffs2_zlib_init(void);
+void jffs2_zlib_exit(void);
diff --git a/fs/jffs2/nodemgmt.c b/fs/jffs2/nodemgmt.c
new file mode 100644
index 00000000000000..066decf852ffe7
--- /dev/null
+++ b/fs/jffs2/nodemgmt.c
@@ -0,0 +1,392 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright (C) 2001 Red Hat, Inc.
+ *
+ * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
+ *
+ * The original JFFS, from which the design for JFFS2 was derived,
+ * was designed and implemented by Axis Communications AB.
+ *
+ * The contents of this file are subject to the Red Hat eCos Public
+ * License Version 1.1 (the "Licence"); you may not use this file
+ * except in compliance with the Licence.  You may obtain a copy of
+ * the Licence at http://www.redhat.com/
+ *
+ * Software distributed under the Licence is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing rights and
+ * limitations under the Licence.
+ *
+ * The Original Code is JFFS2 - Journalling Flash File System, version 2
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in
+ * which case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the RHEPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the RHEPL or the GPL.
+ *
+ * $Id: nodemgmt.c,v 1.45.2.1 2002/02/23 14:13:34 dwmw2 Exp $
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/jffs2.h>
+#include <linux/mtd/mtd.h>
+#include <linux/interrupt.h>
+#include "nodelist.h"
+
+/**
+ *	jffs2_reserve_space - request physical space to write nodes to flash
+ *	@c: superblock info
+ *	@minsize: Minimum acceptable size of allocation
+ *	@ofs: Returned value of node offset
+ *	@len: Returned value of allocation length
+ *	@prio: Allocation type - ALLOC_{NORMAL,DELETION}
+ *
+ *	Requests a block of physical space on the flash. Returns zero for success
+ *	and puts 'ofs' and 'len' into the appriopriate place, or returns -ENOSPC
+ *	or other error if appropriate.
+ *
+ *	If it returns zero, jffs2_reserve_space() also downs the per-filesystem
+ *	allocation semaphore, to prevent more than one allocation from being
+ *	active at any time. The semaphore is later released by jffs2_commit_allocation()
+ *
+ *	jffs2_reserve_space() may trigger garbage collection in order to make room
+ *	for the requested allocation.
+ */
+
+static int jffs2_do_reserve_space(struct jffs2_sb_info *c,  __u32 minsize, __u32 *ofs, __u32 *len);
+
+int jffs2_reserve_space(struct jffs2_sb_info *c, __u32 minsize, __u32 *ofs, __u32 *len, int prio)
+{
+	int ret = -EAGAIN;
+	int blocksneeded = JFFS2_RESERVED_BLOCKS_WRITE;
+	/* align it */
+	minsize = PAD(minsize);
+
+	if (prio == ALLOC_DELETION)
+		blocksneeded = JFFS2_RESERVED_BLOCKS_DELETION;
+
+	D1(printk(KERN_DEBUG "jffs2_reserve_space(): Requested 0x%x bytes\n", minsize));
+	down(&c->alloc_sem);
+
+	D1(printk(KERN_DEBUG "jffs2_reserve_space(): alloc sem got\n"));
+
+	spin_lock_bh(&c->erase_completion_lock);
+
+	/* this needs a little more thought */
+	while(ret == -EAGAIN) {
+		while(c->nr_free_blocks + c->nr_erasing_blocks < blocksneeded) {
+			int ret;
+
+			up(&c->alloc_sem);
+			if (c->dirty_size < c->sector_size) {
+				D1(printk(KERN_DEBUG "Short on space, but total dirty size 0x%08x < sector size 0x%08x, so -ENOSPC\n", c->dirty_size, c->sector_size));
+				spin_unlock_bh(&c->erase_completion_lock);
+				return -ENOSPC;
+			}
+			D1(printk(KERN_DEBUG "Triggering GC pass. nr_free_blocks %d, nr_erasing_blocks %d, free_size 0x%08x, dirty_size 0x%08x, used_size 0x%08x, erasing_size 0x%08x, bad_size 0x%08x (total 0x%08x of 0x%08x)\n",
+				  c->nr_free_blocks, c->nr_erasing_blocks, c->free_size, c->dirty_size, c->used_size, c->erasing_size, c->bad_size,
+				  c->free_size + c->dirty_size + c->used_size + c->erasing_size + c->bad_size, c->flash_size));
+			spin_unlock_bh(&c->erase_completion_lock);
+			
+			ret = jffs2_garbage_collect_pass(c);
+			if (ret)
+				return ret;
+
+			if (current->need_resched)
+				schedule();
+
+			if (signal_pending(current))
+				return -EINTR;
+
+			down(&c->alloc_sem);
+			spin_lock_bh(&c->erase_completion_lock);
+		}
+
+		ret = jffs2_do_reserve_space(c, minsize, ofs, len);
+		if (ret) {
+			D1(printk(KERN_DEBUG "jffs2_reserve_space: ret is %d\n", ret));
+		}
+	}
+	spin_unlock_bh(&c->erase_completion_lock);
+	if (ret)
+		up(&c->alloc_sem);
+	return ret;
+}
+
+int jffs2_reserve_space_gc(struct jffs2_sb_info *c, __u32 minsize, __u32 *ofs, __u32 *len)
+{
+	int ret = -EAGAIN;
+	minsize = PAD(minsize);
+
+	D1(printk(KERN_DEBUG "jffs2_reserve_space_gc(): Requested 0x%x bytes\n", minsize));
+
+	spin_lock_bh(&c->erase_completion_lock);
+	while(ret == -EAGAIN) {
+		ret = jffs2_do_reserve_space(c, minsize, ofs, len);
+		if (ret) {
+		        D1(printk(KERN_DEBUG "jffs2_reserve_space_gc: looping, ret is %d\n", ret));
+		}
+	}
+	spin_unlock_bh(&c->erase_completion_lock);
+	return ret;
+}
+
+/* Called with alloc sem _and_ erase_completion_lock */
+static int jffs2_do_reserve_space(struct jffs2_sb_info *c,  __u32 minsize, __u32 *ofs, __u32 *len)
+{
+	struct jffs2_eraseblock *jeb = c->nextblock;
+	
+ restart:
+	if (jeb && minsize > jeb->free_size) {
+		/* Skip the end of this block and file it as having some dirty space */
+		c->dirty_size += jeb->free_size;
+		c->free_size -= jeb->free_size;
+		jeb->dirty_size += jeb->free_size;
+		jeb->free_size = 0;
+		D1(printk(KERN_DEBUG "Adding full erase block at 0x%08x to dirty_list (free 0x%08x, dirty 0x%08x, used 0x%08x\n",
+			  jeb->offset, jeb->free_size, jeb->dirty_size, jeb->used_size));
+		list_add_tail(&jeb->list, &c->dirty_list);
+		c->nextblock = jeb = NULL;
+	}
+	
+	if (!jeb) {
+		struct list_head *next;
+		/* Take the next block off the 'free' list */
+
+		if (list_empty(&c->free_list)) {
+
+			DECLARE_WAITQUEUE(wait, current);
+			
+			if (!c->nr_erasing_blocks) {
+//			if (list_empty(&c->erasing_list) && list_empty(&c->erase_pending_list) && list_empty(c->erase_complete_list)) {
+				/* Ouch. We're in GC, or we wouldn't have got here.
+				   And there's no space left. At all. */
+				printk(KERN_CRIT "Argh. No free space left for GC. nr_erasing_blocks is %d. nr_free_blocks is %d. (erasingempty: %s, erasependingempty: %s)\n", 
+				       c->nr_erasing_blocks, c->nr_free_blocks, list_empty(&c->erasing_list)?"yes":"no", list_empty(&c->erase_pending_list)?"yes":"no");
+				return -ENOSPC;
+			}
+			/* Make sure this can't deadlock. Someone has to start the erases
+			   of erase_pending blocks */
+			set_current_state(TASK_INTERRUPTIBLE);
+			add_wait_queue(&c->erase_wait, &wait);
+			D1(printk(KERN_DEBUG "Waiting for erases to complete. erasing_blocks is %d. (erasingempty: %s, erasependingempty: %s)\n", 
+				  c->nr_erasing_blocks, list_empty(&c->erasing_list)?"yes":"no", list_empty(&c->erase_pending_list)?"yes":"no"));
+			if (!list_empty(&c->erase_pending_list)) {
+				D1(printk(KERN_DEBUG "Triggering pending erases\n"));
+				jffs2_erase_pending_trigger(c);
+			}
+			spin_unlock_bh(&c->erase_completion_lock);
+			schedule();
+			remove_wait_queue(&c->erase_wait, &wait);
+			spin_lock_bh(&c->erase_completion_lock);
+			if (signal_pending(current)) {
+				return -EINTR;
+			}
+			/* An erase may have failed, decreasing the
+			   amount of free space available. So we must
+			   restart from the beginning */
+			return -EAGAIN;
+		}
+
+		next = c->free_list.next;
+		list_del(next);
+		c->nextblock = jeb = list_entry(next, struct jffs2_eraseblock, list);
+		c->nr_free_blocks--;
+		if (jeb->free_size != c->sector_size - sizeof(struct jffs2_unknown_node)) {
+			printk(KERN_WARNING "Eep. Block 0x%08x taken from free_list had free_size of 0x%08x!!\n", jeb->offset, jeb->free_size);
+			goto restart;
+		}
+	}
+	/* OK, jeb (==c->nextblock) is now pointing at a block which definitely has
+	   enough space */
+	*ofs = jeb->offset + (c->sector_size - jeb->free_size);
+	*len = jeb->free_size;
+	D1(printk(KERN_DEBUG "jffs2_do_reserve_space(): Giving 0x%x bytes at 0x%x\n", *len, *ofs));
+	return 0;
+}
+
+/**
+ *	jffs2_add_physical_node_ref - add a physical node reference to the list
+ *	@c: superblock info
+ *	@ofs: physical location of this physical node
+ *	@len: length of this physical node
+ *	@ino: inode number with which this physical node is associated
+ *
+ *	Should only be used to report nodes for which space has been allocated 
+ *	by jffs2_reserve_space.
+ *
+ *	Must be called with the alloc_sem held.
+ */
+ 
+int jffs2_add_physical_node_ref(struct jffs2_sb_info *c, struct jffs2_raw_node_ref *new, __u32 len, int dirty)
+{
+	struct jffs2_eraseblock *jeb;
+
+	len = PAD(len);
+	jeb = &c->blocks[(new->flash_offset & ~3) / c->sector_size];
+	D1(printk(KERN_DEBUG "jffs2_add_physical_node_ref(): Node at 0x%x, size 0x%x\n", new->flash_offset & ~3, len));
+#if 1
+	if (jeb != c->nextblock || (new->flash_offset & ~3) != jeb->offset + (c->sector_size - jeb->free_size)) {
+		printk(KERN_WARNING "argh. node added in wrong place\n");
+		jffs2_free_raw_node_ref(new);
+		return -EINVAL;
+	}
+#endif
+	if (!jeb->first_node)
+		jeb->first_node = new;
+	if (jeb->last_node)
+		jeb->last_node->next_phys = new;
+	jeb->last_node = new;
+
+	spin_lock_bh(&c->erase_completion_lock);
+	jeb->free_size -= len;
+	c->free_size -= len;
+	if (dirty) {
+		new->flash_offset |= 1;
+		jeb->dirty_size += len;
+		c->dirty_size += len;
+	} else {
+		jeb->used_size += len;
+		c->used_size += len;
+	}
+	spin_unlock_bh(&c->erase_completion_lock);
+	if (!jeb->free_size && !jeb->dirty_size) {
+		/* If it lives on the dirty_list, jffs2_reserve_space will put it there */
+		D1(printk(KERN_DEBUG "Adding full erase block at 0x%08x to clean_list (free 0x%08x, dirty 0x%08x, used 0x%08x\n",
+			  jeb->offset, jeb->free_size, jeb->dirty_size, jeb->used_size));
+		list_add_tail(&jeb->list, &c->clean_list);
+		c->nextblock = NULL;
+	}
+	ACCT_SANITY_CHECK(c,jeb);
+	ACCT_PARANOIA_CHECK(jeb);
+
+	return 0;
+}
+
+
+void jffs2_complete_reservation(struct jffs2_sb_info *c)
+{
+	D1(printk(KERN_DEBUG "jffs2_complete_reservation()\n"));
+	jffs2_garbage_collect_trigger(c);
+	up(&c->alloc_sem);
+}
+
+void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref *ref)
+{
+	struct jffs2_eraseblock *jeb;
+	int blocknr;
+	struct jffs2_unknown_node n;
+	int ret;
+	ssize_t retlen;
+
+	if(!ref) {
+		printk(KERN_NOTICE "EEEEEK. jffs2_mark_node_obsolete called with NULL node\n");
+		return;
+	}
+	if (ref->flash_offset & 1) {
+		D1(printk(KERN_DEBUG "jffs2_mark_node_obsolete called with already obsolete node at 0x%08x\n", ref->flash_offset &~3));
+		return;
+	}
+	blocknr = ref->flash_offset / c->sector_size;
+	if (blocknr >= c->nr_blocks) {
+		printk(KERN_NOTICE "raw node at 0x%08x is off the end of device!\n", ref->flash_offset);
+		BUG();
+	}
+	jeb = &c->blocks[blocknr];
+	if (jeb->used_size < ref->totlen) {
+		printk(KERN_NOTICE "raw node of size 0x%08x freed from erase block %d at 0x%08x, but used_size was already 0x%08x\n",
+		       ref->totlen, blocknr, ref->flash_offset, jeb->used_size);
+		BUG();
+	}
+
+	spin_lock_bh(&c->erase_completion_lock);
+	jeb->used_size -= ref->totlen;
+	jeb->dirty_size += ref->totlen;
+	c->used_size -= ref->totlen;
+	c->dirty_size += ref->totlen;
+	ref->flash_offset |= 1;
+	
+	ACCT_SANITY_CHECK(c, jeb);
+
+	ACCT_PARANOIA_CHECK(jeb);
+
+	if (c->flags & JFFS2_SB_FLAG_MOUNTING) {
+		/* Mount in progress. Don't muck about with the block
+		   lists because they're not ready yet, and don't actually
+		   obliterate nodes that look obsolete. If they weren't 
+		   marked obsolete on the flash at the time they _became_
+		   obsolete, there was probably a reason for that. */
+		spin_unlock_bh(&c->erase_completion_lock);
+		return;
+	}
+	if (jeb == c->nextblock) {
+		D2(printk(KERN_DEBUG "Not moving nextblock 0x%08x to dirty/erase_pending list\n", jeb->offset));
+	} else if (jeb == c->gcblock) {
+		D2(printk(KERN_DEBUG "Not moving gcblock 0x%08x to dirty/erase_pending list\n", jeb->offset));
+#if 0 /* We no longer do this here. It can screw the wear levelling. If you have a lot of static
+	 data and a few blocks free, and you just create new files and keep deleting/overwriting
+	 them, then you'd keep erasing and reusing those blocks without ever moving stuff around.
+	 So we leave completely obsoleted blocks on the dirty_list and let the GC delete them 
+	 when it finds them there. That way, we still get the 'once in a while, take a clean block'
+	 to spread out the flash usage */
+	} else if (!jeb->used_size) {
+		D1(printk(KERN_DEBUG "Eraseblock at 0x%08x completely dirtied. Removing from (dirty?) list...\n", jeb->offset));
+		list_del(&jeb->list);
+		D1(printk(KERN_DEBUG "...and adding to erase_pending_list\n"));
+		list_add_tail(&jeb->list, &c->erase_pending_list);
+		c->nr_erasing_blocks++;
+		jffs2_erase_pending_trigger(c);
+		//		OFNI_BS_2SFFJ(c)->s_dirt = 1;
+		D1(printk(KERN_DEBUG "Done OK\n"));
+#endif
+	} else if (jeb->dirty_size == ref->totlen) {
+		D1(printk(KERN_DEBUG "Eraseblock at 0x%08x is freshly dirtied. Removing from clean list...\n", jeb->offset));
+		list_del(&jeb->list);
+		D1(printk(KERN_DEBUG "...and adding to dirty_list\n"));
+		list_add_tail(&jeb->list, &c->dirty_list);
+	}
+	spin_unlock_bh(&c->erase_completion_lock);
+
+	if (c->mtd->type != MTD_NORFLASH && c->mtd->type != MTD_RAM)
+		return;
+	if (OFNI_BS_2SFFJ(c)->s_flags & MS_RDONLY)
+		return;
+
+	D1(printk(KERN_DEBUG "obliterating obsoleted node at 0x%08x\n", ref->flash_offset &~3));
+	ret = c->mtd->read(c->mtd, ref->flash_offset &~3, sizeof(n), &retlen, (char *)&n);
+	if (ret) {
+		printk(KERN_WARNING "Read error reading from obsoleted node at 0x%08x: %d\n", ref->flash_offset &~3, ret);
+		return;
+	}
+	if (retlen != sizeof(n)) {
+		printk(KERN_WARNING "Short read from obsoleted node at 0x%08x: %d\n", ref->flash_offset &~3, retlen);
+		return;
+	}
+	if (PAD(n.totlen) != PAD(ref->totlen)) {
+		printk(KERN_WARNING "Node totlen on flash (0x%08x) != totlen in node ref (0x%08x)\n", n.totlen, ref->totlen);
+		return;
+	}
+	if (!(n.nodetype & JFFS2_NODE_ACCURATE)) {
+		D1(printk(KERN_DEBUG "Node at 0x%08x was already marked obsolete (nodetype 0x%04x\n", ref->flash_offset &~3, n.nodetype));
+		return;
+	}
+	n.nodetype &= ~JFFS2_NODE_ACCURATE;
+	ret = c->mtd->write(c->mtd, ref->flash_offset&~3, sizeof(n), &retlen, (char *)&n);
+	if (ret) {
+		printk(KERN_WARNING "Write error in obliterating obsoleted node at 0x%08x: %d\n", ref->flash_offset &~3, ret);
+		return;
+	}
+	if (retlen != sizeof(n)) {
+		printk(KERN_WARNING "Short write in obliterating obsoleted node at 0x%08x: %d\n", ref->flash_offset &~3, retlen);
+		return;
+	}
+}
diff --git a/fs/jffs2/pushpull.c b/fs/jffs2/pushpull.c
new file mode 100644
index 00000000000000..934d4df7291704
--- /dev/null
+++ b/fs/jffs2/pushpull.c
@@ -0,0 +1,71 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright (C) 2001 Red Hat, Inc.
+ *
+ * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
+ *
+ * The original JFFS, from which the design for JFFS2 was derived,
+ * was designed and implemented by Axis Communications AB.
+ *
+ * The contents of this file are subject to the Red Hat eCos Public
+ * License Version 1.1 (the "Licence"); you may not use this file
+ * except in compliance with the Licence.  You may obtain a copy of
+ * the Licence at http://www.redhat.com/
+ *
+ * Software distributed under the Licence is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing rights and
+ * limitations under the Licence.
+ *
+ * The Original Code is JFFS2 - Journalling Flash File System, version 2
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in
+ * which case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the RHEPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the RHEPL or the GPL.
+ *
+ * $Id: pushpull.c,v 1.7 2001/09/23 10:04:15 rmk Exp $
+ *
+ */
+
+#include <linux/string.h>
+#include "pushpull.h"
+#include <linux/errno.h>
+
+void init_pushpull(struct pushpull *pp, char *buf, unsigned buflen, unsigned ofs, unsigned reserve)
+{
+	pp->buf = buf;
+	pp->buflen = buflen;
+	pp->ofs = ofs;
+	pp->reserve = reserve;
+}
+     
+
+int pushbit(struct pushpull *pp, int bit, int use_reserved)
+{
+	if (pp->ofs >= pp->buflen - (use_reserved?0:pp->reserve)) {
+		return -ENOSPC;
+	}
+
+	if (bit) {
+		pp->buf[pp->ofs >> 3] |= (1<<(7-(pp->ofs &7)));
+	}
+	else {
+		pp->buf[pp->ofs >> 3] &= ~(1<<(7-(pp->ofs &7)));
+	}
+	pp->ofs++;
+
+	return 0;
+}
+
+int pushedbits(struct pushpull *pp)
+{
+	return pp->ofs;
+}
diff --git a/fs/jffs2/pushpull.h b/fs/jffs2/pushpull.h
new file mode 100644
index 00000000000000..dba10f3eac3f4e
--- /dev/null
+++ b/fs/jffs2/pushpull.h
@@ -0,0 +1,66 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright (C) 2001 Red Hat, Inc.
+ *
+ * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
+ *
+ * The original JFFS, from which the design for JFFS2 was derived,
+ * was designed and implemented by Axis Communications AB.
+ *
+ * The contents of this file are subject to the Red Hat eCos Public
+ * License Version 1.1 (the "Licence"); you may not use this file
+ * except in compliance with the Licence.  You may obtain a copy of
+ * the Licence at http://www.redhat.com/
+ *
+ * Software distributed under the Licence is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing rights and
+ * limitations under the Licence.
+ *
+ * The Original Code is JFFS2 - Journalling Flash File System, version 2
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in
+ * which case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the RHEPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the RHEPL or the GPL.
+ *
+ * $Id: pushpull.h,v 1.5 2001/09/23 10:04:15 rmk Exp $
+ *
+ */
+
+#ifndef __PUSHPULL_H__
+#define __PUSHPULL_H__
+struct pushpull {
+	unsigned char *buf;
+	unsigned int buflen;
+	unsigned int ofs;
+	unsigned int reserve;
+};
+
+void init_pushpull(struct pushpull *, char *, unsigned, unsigned, unsigned);
+int pushbit(struct pushpull *pp, int bit, int use_reserved);
+int pushedbits(struct pushpull *pp);
+
+static inline int pullbit(struct pushpull *pp)
+{
+	int bit;
+
+	bit = (pp->buf[pp->ofs >> 3] >> (7-(pp->ofs & 7))) & 1;
+
+	pp->ofs++;
+	return bit;
+}
+
+static inline int pulledbits(struct pushpull *pp)
+{
+	return pp->ofs;
+}
+
+#endif /* __PUSHPULL_H__ */
diff --git a/fs/jffs2/read.c b/fs/jffs2/read.c
new file mode 100644
index 00000000000000..398ff5624baa51
--- /dev/null
+++ b/fs/jffs2/read.c
@@ -0,0 +1,163 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright (C) 2001 Red Hat, Inc.
+ *
+ * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
+ *
+ * The original JFFS, from which the design for JFFS2 was derived,
+ * was designed and implemented by Axis Communications AB.
+ *
+ * The contents of this file are subject to the Red Hat eCos Public
+ * License Version 1.1 (the "Licence"); you may not use this file
+ * except in compliance with the Licence.  You may obtain a copy of
+ * the Licence at http://www.redhat.com/
+ *
+ * Software distributed under the Licence is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing rights and
+ * limitations under the Licence.
+ *
+ * The Original Code is JFFS2 - Journalling Flash File System, version 2
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in
+ * which case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the RHEPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the RHEPL or the GPL.
+ *
+ * $Id: read.c,v 1.13.2.2 2003/11/02 13:51:18 dwmw2 Exp $
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/jffs2.h>
+#include <linux/mtd/mtd.h>
+#include "nodelist.h"
+#include <linux/crc32.h>
+
+int jffs2_read_dnode(struct jffs2_sb_info *c, struct jffs2_full_dnode *fd, unsigned char *buf, int ofs, int len)
+{
+	struct jffs2_raw_inode *ri;
+	size_t readlen;
+	__u32 crc;
+	unsigned char *decomprbuf = NULL;
+	unsigned char *readbuf = NULL;
+	int ret = 0;
+
+	ri = jffs2_alloc_raw_inode();
+	if (!ri)
+		return -ENOMEM;
+
+	ret = c->mtd->read(c->mtd, fd->raw->flash_offset & ~3, sizeof(*ri), &readlen, (char *)ri);
+	if (ret) {
+		jffs2_free_raw_inode(ri);
+		printk(KERN_WARNING "Error reading node from 0x%08x: %d\n", fd->raw->flash_offset & ~3, ret);
+		return ret;
+	}
+	if (readlen != sizeof(*ri)) {
+		jffs2_free_raw_inode(ri);
+		printk(KERN_WARNING "Short read from 0x%08x: wanted 0x%x bytes, got 0x%x\n", 
+		       fd->raw->flash_offset & ~3, sizeof(*ri), readlen);
+		return -EIO;
+	}
+	crc = crc32(0, ri, sizeof(*ri)-8);
+
+	D1(printk(KERN_DEBUG "Node read from %08x: node_crc %08x, calculated CRC %08x. dsize %x, csize %x, offset %x, buf %p\n", fd->raw->flash_offset & ~3, ri->node_crc, crc, ri->dsize, ri->csize, ri->offset, buf));
+	if (crc != ri->node_crc) {
+		printk(KERN_WARNING "Node CRC %08x != calculated CRC %08x for node at %08x\n", ri->node_crc, crc, fd->raw->flash_offset & ~3);
+		ret = -EIO;
+		goto out_ri;
+	}
+	/* There was a bug where we wrote hole nodes out with csize/dsize
+	   swapped. Deal with it */
+	if (ri->compr == JFFS2_COMPR_ZERO && !ri->dsize && ri->csize) {
+		ri->dsize = ri->csize;
+		ri->csize = 0;
+	}
+
+	D1(if(ofs + len > ri->dsize) {
+		printk(KERN_WARNING "jffs2_read_dnode() asked for %d bytes at %d from %d-byte node\n", len, ofs, ri->dsize);
+		ret = -EINVAL;
+		goto out_ri;
+	});
+
+	
+	if (ri->compr == JFFS2_COMPR_ZERO) {
+		memset(buf, 0, len);
+		goto out_ri;
+	}
+
+	/* Cases:
+	   Reading whole node and it's uncompressed - read directly to buffer provided, check CRC.
+	   Reading whole node and it's compressed - read into comprbuf, check CRC and decompress to buffer provided 
+	   Reading partial node and it's uncompressed - read into readbuf, check CRC, and copy 
+	   Reading partial node and it's compressed - read into readbuf, check checksum, decompress to decomprbuf and copy
+	*/
+	if (ri->compr == JFFS2_COMPR_NONE && len == ri->dsize) {
+		readbuf = buf;
+	} else {
+		readbuf = kmalloc(ri->csize, GFP_KERNEL);
+		if (!readbuf) {
+			ret = -ENOMEM;
+			goto out_ri;
+		}
+	}
+	if (ri->compr != JFFS2_COMPR_NONE) {
+		if (len < ri->dsize) {
+			decomprbuf = kmalloc(ri->dsize, GFP_KERNEL);
+			if (!decomprbuf) {
+				ret = -ENOMEM;
+				goto out_readbuf;
+			}
+		} else {
+			decomprbuf = buf;
+		}
+	} else {
+		decomprbuf = readbuf;
+	}
+
+	D2(printk(KERN_DEBUG "Read %d bytes to %p\n", ri->csize, readbuf));
+	ret = c->mtd->read(c->mtd, (fd->raw->flash_offset &~3) + sizeof(*ri), ri->csize, &readlen, readbuf);
+
+	if (!ret && readlen != ri->csize)
+		ret = -EIO;
+	if (ret)
+		goto out_decomprbuf;
+
+	crc = crc32(0, readbuf, ri->csize);
+	if (crc != ri->data_crc) {
+		printk(KERN_WARNING "Data CRC %08x != calculated CRC %08x for node at %08x\n", ri->data_crc, crc, fd->raw->flash_offset & ~3);
+		ret = -EIO;
+		goto out_decomprbuf;
+	}
+	D2(printk(KERN_DEBUG "Data CRC matches calculated CRC %08x\n", crc));
+	if (ri->compr != JFFS2_COMPR_NONE) {
+		D2(printk(KERN_DEBUG "Decompress %d bytes from %p to %d bytes at %p\n", ri->csize, readbuf, ri->dsize, decomprbuf)); 
+		ret = jffs2_decompress(ri->compr, readbuf, decomprbuf, ri->csize, ri->dsize);
+		if (ret) {
+			printk(KERN_WARNING "Error: jffs2_decompress returned %d\n", ret);
+			goto out_decomprbuf;
+		}
+	}
+
+	if (len < ri->dsize) {
+		memcpy(buf, decomprbuf+ofs, len);
+	}
+ out_decomprbuf:
+	if(decomprbuf != buf && decomprbuf != readbuf)
+		kfree(decomprbuf);
+ out_readbuf:
+	if(readbuf != buf)
+		kfree(readbuf);
+ out_ri:
+	jffs2_free_raw_inode(ri);
+
+	return ret;
+}
diff --git a/fs/jffs2/readinode.c b/fs/jffs2/readinode.c
new file mode 100644
index 00000000000000..f81bd41ebddf82
--- /dev/null
+++ b/fs/jffs2/readinode.c
@@ -0,0 +1,508 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright (C) 2001 Red Hat, Inc.
+ *
+ * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
+ *
+ * The original JFFS, from which the design for JFFS2 was derived,
+ * was designed and implemented by Axis Communications AB.
+ *
+ * The contents of this file are subject to the Red Hat eCos Public
+ * License Version 1.1 (the "Licence"); you may not use this file
+ * except in compliance with the Licence.  You may obtain a copy of
+ * the Licence at http://www.redhat.com/
+ *
+ * Software distributed under the Licence is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing rights and
+ * limitations under the Licence.
+ *
+ * The Original Code is JFFS2 - Journalling Flash File System, version 2
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in
+ * which case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the RHEPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the RHEPL or the GPL.
+ *
+ * $Id: readinode.c,v 1.58.2.8 2003/11/02 13:54:20 dwmw2 Exp $
+ *
+ */
+
+/* Given an inode, probably with existing list of fragments, add the new node
+ * to the fragment list.
+ */
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/fs.h>
+#include <linux/mtd/mtd.h>
+#include <linux/jffs2.h>
+#include "nodelist.h"
+#include <linux/crc32.h>
+
+
+D1(void jffs2_print_frag_list(struct jffs2_inode_info *f)
+{
+	struct jffs2_node_frag *this = f->fraglist;
+
+	while(this) {
+		if (this->node)
+			printk(KERN_DEBUG "frag %04x-%04x: 0x%08x on flash (*%p->%p)\n", this->ofs, this->ofs+this->size, this->node->raw->flash_offset &~3, this, this->next);
+		else 
+			printk(KERN_DEBUG "frag %04x-%04x: hole (*%p->%p)\n", this->ofs, this->ofs+this->size, this, this->next);
+		this = this->next;
+	}
+	if (f->metadata) {
+		printk(KERN_DEBUG "metadata at 0x%08x\n", f->metadata->raw->flash_offset &~3);
+	}
+})
+
+
+int jffs2_add_full_dnode_to_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f, struct jffs2_full_dnode *fn)
+{
+	int ret;
+	D1(printk(KERN_DEBUG "jffs2_add_full_dnode_to_inode(ino #%u, f %p, fn %p)\n", f->inocache->ino, f, fn));
+
+	ret = jffs2_add_full_dnode_to_fraglist(c, &f->fraglist, fn);
+
+	D2(jffs2_print_frag_list(f));
+	return ret;
+}
+
+static void jffs2_obsolete_node_frag(struct jffs2_sb_info *c, struct jffs2_node_frag *this)
+{
+	if (this->node) {
+		this->node->frags--;
+		if (!this->node->frags) {
+			/* The node has no valid frags left. It's totally obsoleted */
+			D2(printk(KERN_DEBUG "Marking old node @0x%08x (0x%04x-0x%04x) obsolete\n",
+				  this->node->raw->flash_offset &~3, this->node->ofs, this->node->ofs+this->node->size));
+			jffs2_mark_node_obsolete(c, this->node->raw);
+			jffs2_free_full_dnode(this->node);
+		} else {
+			D2(printk(KERN_DEBUG "Not marking old node @0x%08x (0x%04x-0x%04x) obsolete. frags is %d\n",
+				  this->node->raw->flash_offset &~3, this->node->ofs, this->node->ofs+this->node->size,
+				  this->node->frags));
+		}
+		
+	}
+	jffs2_free_node_frag(this);
+}
+
+/* Doesn't set inode->i_size */
+int jffs2_add_full_dnode_to_fraglist(struct jffs2_sb_info *c, struct jffs2_node_frag **list, struct jffs2_full_dnode *fn)
+{
+	
+	struct jffs2_node_frag *this, **prev, *old;
+	struct jffs2_node_frag *newfrag, *newfrag2;
+	__u32 lastend = 0;
+
+
+	newfrag = jffs2_alloc_node_frag();
+	if (!newfrag) {
+		return -ENOMEM;
+	}
+
+	D2(if (fn->raw)
+		printk(KERN_DEBUG "adding node %04x-%04x @0x%08x on flash, newfrag *%p\n", fn->ofs, fn->ofs+fn->size, fn->raw->flash_offset &~3, newfrag);
+	else
+		printk(KERN_DEBUG "adding hole node %04x-%04x on flash, newfrag *%p\n", fn->ofs, fn->ofs+fn->size, newfrag));
+	
+	prev = list;
+	this = *list;
+
+	if (!fn->size) {
+		jffs2_free_node_frag(newfrag);
+		return 0;
+	}
+
+	newfrag->ofs = fn->ofs;
+	newfrag->size = fn->size;
+	newfrag->node = fn;
+	newfrag->node->frags = 1;
+	newfrag->next = (void *)0xdeadbeef;
+
+	/* Skip all the nodes which are completed before this one starts */
+	while(this && fn->ofs >= this->ofs+this->size) {
+		lastend = this->ofs + this->size;
+
+		D2(printk(KERN_DEBUG "j_a_f_d_t_f: skipping frag 0x%04x-0x%04x; phys 0x%08x (*%p->%p)\n", 
+			  this->ofs, this->ofs+this->size, this->node?(this->node->raw->flash_offset &~3):0xffffffff, this, this->next));
+		prev = &this->next;
+		this = this->next;
+	}
+
+	/* See if we ran off the end of the list */
+	if (!this) {
+		/* We did */
+		if (lastend < fn->ofs) {
+			/* ... and we need to put a hole in before the new node */
+			struct jffs2_node_frag *holefrag = jffs2_alloc_node_frag();
+			if (!holefrag)
+				return -ENOMEM;
+			holefrag->ofs = lastend;
+			holefrag->size = fn->ofs - lastend;
+			holefrag->next = NULL;
+			holefrag->node = NULL;
+			*prev = holefrag;
+			prev = &holefrag->next;
+		}
+		newfrag->next = NULL;
+		*prev = newfrag;
+		return 0;
+	}
+
+	D2(printk(KERN_DEBUG "j_a_f_d_t_f: dealing with frag 0x%04x-0x%04x; phys 0x%08x (*%p->%p)\n", 
+		  this->ofs, this->ofs+this->size, this->node?(this->node->raw->flash_offset &~3):0xffffffff, this, this->next));
+
+	/* OK. 'this' is pointing at the first frag that fn->ofs at least partially obsoletes,
+	 * - i.e. fn->ofs < this->ofs+this->size && fn->ofs >= this->ofs  
+	 */
+	if (fn->ofs > this->ofs) {
+		/* This node isn't completely obsoleted. The start of it remains valid */
+		if (this->ofs + this->size > fn->ofs + fn->size) {
+			/* The new node splits 'this' frag into two */
+			newfrag2 = jffs2_alloc_node_frag();
+			if (!newfrag2) {
+				jffs2_free_node_frag(newfrag);
+				return -ENOMEM;
+			}
+			D1(printk(KERN_DEBUG "split old frag 0x%04x-0x%04x -->", this->ofs, this->ofs+this->size);
+			if (this->node)
+				printk("phys 0x%08x\n", this->node->raw->flash_offset &~3);
+			else 
+				printk("hole\n");
+			   )
+			newfrag2->ofs = fn->ofs + fn->size;
+			newfrag2->size = (this->ofs+this->size) - newfrag2->ofs;
+			newfrag2->next = this->next;
+			newfrag2->node = this->node;
+			if (this->node)
+				this->node->frags++;
+			newfrag->next = newfrag2;
+			this->next = newfrag;
+			this->size = newfrag->ofs - this->ofs;
+			return 0;
+		}
+		/* New node just reduces 'this' frag in size, doesn't split it */
+		this->size = fn->ofs - this->ofs;
+		newfrag->next = this->next;
+		this->next = newfrag;
+		this = newfrag->next;
+	} else {
+		D2(printk(KERN_DEBUG "Inserting newfrag (*%p) in before 'this' (*%p)\n", newfrag, this));
+		*prev = newfrag;
+	        newfrag->next = this;
+	}
+	/* OK, now we have newfrag added in the correct place in the list, but
+	   newfrag->next points to a fragment which may be overlapping it
+	*/
+	while (this && newfrag->ofs + newfrag->size >= this->ofs + this->size) {
+		/* 'this' frag is obsoleted. */
+		old = this;
+		this = old->next;
+		jffs2_obsolete_node_frag(c, old);
+	}
+	/* Now we're pointing at the first frag which isn't totally obsoleted by 
+	   the new frag */
+	newfrag->next = this;
+
+	if (!this || newfrag->ofs + newfrag->size == this->ofs) {
+		return 0;
+	}
+	/* Still some overlap */
+	this->size = (this->ofs + this->size) - (newfrag->ofs + newfrag->size);
+	this->ofs = newfrag->ofs + newfrag->size;
+	return 0;
+}
+
+void jffs2_truncate_fraglist (struct jffs2_sb_info *c, struct jffs2_node_frag **list, __u32 size)
+{
+	D1(printk(KERN_DEBUG "Truncating fraglist to 0x%08x bytes\n", size));
+
+	while (*list) {
+		if ((*list)->ofs >= size) {
+			struct jffs2_node_frag *this = *list;
+			*list = this->next;
+			D1(printk(KERN_DEBUG "Removing frag 0x%08x-0x%08x\n", this->ofs, this->ofs+this->size));
+			jffs2_obsolete_node_frag(c, this);
+			continue;
+		} else if ((*list)->ofs + (*list)->size > size) {
+			D1(printk(KERN_DEBUG "Truncating frag 0x%08x-0x%08x\n", (*list)->ofs, (*list)->ofs + (*list)->size));
+			(*list)->size = size - (*list)->ofs;
+		}
+		list = &(*list)->next;
+	}
+}
+
+/* Scan the list of all nodes present for this ino, build map of versions, etc. */
+
+void jffs2_read_inode (struct inode *inode)
+{
+	struct jffs2_tmp_dnode_info *tn_list, *tn;
+	struct jffs2_full_dirent *fd_list;
+	struct jffs2_inode_info *f;
+	struct jffs2_full_dnode *fn = NULL;
+	struct jffs2_sb_info *c;
+	struct jffs2_raw_inode latest_node;
+	__u32 latest_mctime, mctime_ver;
+	__u32 mdata_ver = 0;
+	int ret;
+	ssize_t retlen;
+
+	D1(printk(KERN_DEBUG "jffs2_read_inode(): inode->i_ino == %lu\n", inode->i_ino));
+
+	f = JFFS2_INODE_INFO(inode);
+	c = JFFS2_SB_INFO(inode->i_sb);
+
+	memset(f, 0, sizeof(*f));
+	D2(printk(KERN_DEBUG "getting inocache\n"));
+	init_MUTEX(&f->sem);
+	f->inocache = jffs2_get_ino_cache(c, inode->i_ino);
+	D2(printk(KERN_DEBUG "jffs2_read_inode(): Got inocache at %p\n", f->inocache));
+
+	if (!f->inocache && inode->i_ino == 1) {
+		/* Special case - no root inode on medium */
+		f->inocache = jffs2_alloc_inode_cache();
+		if (!f->inocache) {
+			printk(KERN_CRIT "jffs2_read_inode(): Cannot allocate inocache for root inode\n");
+			make_bad_inode(inode);
+			return;
+		}
+		D1(printk(KERN_DEBUG "jffs2_read_inode(): Creating inocache for root inode\n"));
+		memset(f->inocache, 0, sizeof(struct jffs2_inode_cache));
+		f->inocache->ino = f->inocache->nlink = 1;
+		f->inocache->nodes = (struct jffs2_raw_node_ref *)f->inocache;
+		jffs2_add_ino_cache(c, f->inocache);
+	}
+	if (!f->inocache) {
+		printk(KERN_WARNING "jffs2_read_inode() on nonexistent ino %lu\n", (unsigned long)inode->i_ino);
+		make_bad_inode(inode);
+		return;
+	}
+	D1(printk(KERN_DEBUG "jffs2_read_inode(): ino #%lu nlink is %d\n", (unsigned long)inode->i_ino, f->inocache->nlink));
+	inode->i_nlink = f->inocache->nlink;
+
+	/* Grab all nodes relevant to this ino */
+	ret = jffs2_get_inode_nodes(c, inode->i_ino, f, &tn_list, &fd_list, &f->highest_version, &latest_mctime, &mctime_ver);
+
+	if (ret) {
+		printk(KERN_CRIT "jffs2_get_inode_nodes() for ino %lu returned %d\n", inode->i_ino, ret);
+		make_bad_inode(inode);
+		return;
+	}
+	f->dents = fd_list;
+
+	while (tn_list) {
+		tn = tn_list;
+
+		fn = tn->fn;
+
+		if (f->metadata && tn->version > mdata_ver) {
+			D1(printk(KERN_DEBUG "Obsoleting old metadata at 0x%08x\n", f->metadata->raw->flash_offset &~3));
+			jffs2_mark_node_obsolete(c, f->metadata->raw);
+			jffs2_free_full_dnode(f->metadata);
+			f->metadata = NULL;
+			
+			mdata_ver = 0;
+		}
+
+		if (fn->size) {
+			jffs2_add_full_dnode_to_inode(c, f, fn);
+		} else {
+			/* Zero-sized node at end of version list. Just a metadata update */
+			D1(printk(KERN_DEBUG "metadata @%08x: ver %d\n", fn->raw->flash_offset &~3, tn->version));
+			f->metadata = fn;
+			mdata_ver = tn->version;
+		}
+		tn_list = tn->next;
+		jffs2_free_tmp_dnode_info(tn);
+	}
+	if (!fn) {
+		/* No data nodes for this inode. */
+		if (inode->i_ino != 1) {
+			printk(KERN_WARNING "jffs2_read_inode(): No data nodes found for ino #%lu\n", inode->i_ino);
+			if (!fd_list) {
+				make_bad_inode(inode);
+				return;
+			}
+			printk(KERN_WARNING "jffs2_read_inode(): But it has children so we fake some modes for it\n");
+		}
+		inode->i_mode = S_IFDIR | S_IRUGO | S_IWUSR | S_IXUGO;
+		latest_node.version = 0;
+		inode->i_atime = inode->i_ctime = inode->i_mtime = CURRENT_TIME;
+		inode->i_nlink = f->inocache->nlink;
+		inode->i_size = 0;
+	} else {
+		__u32 crc;
+
+		ret = c->mtd->read(c->mtd, fn->raw->flash_offset & ~3, sizeof(latest_node), &retlen, (void *)&latest_node);
+		if (ret || retlen != sizeof(latest_node)) {
+			printk(KERN_NOTICE "MTD read in jffs2_read_inode() failed: Returned %d, %ld of %d bytes read\n",
+			       ret, (long)retlen, sizeof(latest_node));
+			jffs2_clear_inode(inode);
+			make_bad_inode(inode);
+			return;
+		}
+
+		crc = crc32(0, &latest_node, sizeof(latest_node)-8);
+		if (crc != latest_node.node_crc) {
+			printk(KERN_NOTICE "CRC failed for read_inode of inode %ld at physical location 0x%x\n", inode->i_ino, fn->raw->flash_offset & ~3);
+			jffs2_clear_inode(inode);
+			make_bad_inode(inode);
+			return;
+		}
+
+		inode->i_mode = latest_node.mode;
+		inode->i_uid = latest_node.uid;
+		inode->i_gid = latest_node.gid;
+		inode->i_size = latest_node.isize;
+		if (S_ISREG(inode->i_mode))
+			jffs2_truncate_fraglist(c, &f->fraglist, latest_node.isize);
+		inode->i_atime = latest_node.atime;
+		inode->i_mtime = latest_node.mtime;
+		inode->i_ctime = latest_node.ctime;
+	}
+
+	/* OK, now the special cases. Certain inode types should
+	   have only one data node, and it's kept as the metadata
+	   node */
+	if (S_ISBLK(inode->i_mode) || S_ISCHR(inode->i_mode) ||
+	    S_ISLNK(inode->i_mode)) {
+		if (f->metadata) {
+			printk(KERN_WARNING "Argh. Special inode #%lu with mode 0%o had metadata node\n", inode->i_ino, inode->i_mode);
+			jffs2_clear_inode(inode);
+			make_bad_inode(inode);
+			return;
+		}
+		if (!f->fraglist) {
+			printk(KERN_WARNING "Argh. Special inode #%lu with mode 0%o has no fragments\n", inode->i_ino, inode->i_mode);
+			jffs2_clear_inode(inode);
+			make_bad_inode(inode);
+			return;
+		}
+		/* ASSERT: f->fraglist != NULL */
+		if (f->fraglist->next) {
+			printk(KERN_WARNING "Argh. Special inode #%lu with mode 0%o had more than one node\n", inode->i_ino, inode->i_mode);
+			/* FIXME: Deal with it - check crc32, check for duplicate node, check times and discard the older one */
+			jffs2_clear_inode(inode);
+			make_bad_inode(inode);
+			return;
+		}
+		/* OK. We're happy */
+		f->metadata = f->fraglist->node;
+		jffs2_free_node_frag(f->fraglist);
+		f->fraglist = NULL;
+	}			
+	    
+	inode->i_blksize = PAGE_SIZE;
+	inode->i_blocks = (inode->i_size + 511) >> 9;
+	
+	switch (inode->i_mode & S_IFMT) {
+		unsigned short rdev;
+
+	case S_IFLNK:
+		inode->i_op = &jffs2_symlink_inode_operations;
+		/* Hack to work around broken isize in old symlink code.
+		   Remove this when dwmw2 comes to his senses and stops
+		   symlinks from being an entirely gratuitous special
+		   case. */
+		if (!inode->i_size)
+			inode->i_size = latest_node.dsize;
+		break;
+		
+	case S_IFDIR:
+		if (mctime_ver > latest_node.version) {
+			/* The times in the latest_node are actually older than
+			   mctime in the latest dirent. Cheat. */
+			inode->i_mtime = inode->i_ctime = inode->i_atime = 
+				latest_mctime;
+		}
+		inode->i_op = &jffs2_dir_inode_operations;
+		inode->i_fop = &jffs2_dir_operations;
+		break;
+
+	case S_IFREG:
+		inode->i_op = &jffs2_file_inode_operations;
+		inode->i_fop = &jffs2_file_operations;
+		inode->i_mapping->a_ops = &jffs2_file_address_operations;
+		inode->i_mapping->nrpages = 0;
+		break;
+
+	case S_IFBLK:
+	case S_IFCHR:
+		/* Read the device numbers from the media */
+		D1(printk(KERN_DEBUG "Reading device numbers from flash\n"));
+		if (jffs2_read_dnode(c, f->metadata, (char *)&rdev, 0, sizeof(rdev)) < 0) {
+			/* Eep */
+			printk(KERN_NOTICE "Read device numbers for inode %lu failed\n", (unsigned long)inode->i_ino);
+			jffs2_clear_inode(inode);
+			make_bad_inode(inode);
+			return;
+		}			
+
+	case S_IFSOCK:
+	case S_IFIFO:
+		inode->i_op = &jffs2_file_inode_operations;
+		init_special_inode(inode, inode->i_mode, kdev_t_to_nr(MKDEV(rdev>>8, rdev&0xff)));
+		break;
+
+	default:
+		printk(KERN_WARNING "jffs2_read_inode(): Bogus imode %o for ino %lu", inode->i_mode, (unsigned long)inode->i_ino);
+	}
+	D1(printk(KERN_DEBUG "jffs2_read_inode() returning\n"));
+}
+
+void jffs2_clear_inode (struct inode *inode)
+{
+	/* We can forget about this inode for now - drop all 
+	 *  the nodelists associated with it, etc.
+	 */
+	struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
+	struct jffs2_node_frag *frag, *frags;
+	struct jffs2_full_dirent *fd, *fds;
+	struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+        int deleted;
+
+	D1(printk(KERN_DEBUG "jffs2_clear_inode(): ino #%lu mode %o\n", inode->i_ino, inode->i_mode));
+
+	down(&f->sem);
+	deleted = f->inocache && !f->inocache->nlink;
+
+	frags = f->fraglist;
+	fds = f->dents;
+	if (f->metadata) {
+		if (deleted)
+			jffs2_mark_node_obsolete(c, f->metadata->raw);
+		jffs2_free_full_dnode(f->metadata);
+	}
+
+	while (frags) {
+		frag = frags;
+		frags = frag->next;
+		D2(printk(KERN_DEBUG "jffs2_clear_inode: frag at 0x%x-0x%x: node %p, frags %d--\n", frag->ofs, frag->ofs+frag->size, frag->node, frag->node?frag->node->frags:0));
+
+		if (frag->node && !(--frag->node->frags)) {
+			/* Not a hole, and it's the final remaining frag of this node. Free the node */
+			if (deleted)
+				jffs2_mark_node_obsolete(c, frag->node->raw);
+
+			jffs2_free_full_dnode(frag->node);
+		}
+		jffs2_free_node_frag(frag);
+	}
+	while(fds) {
+		fd = fds;
+		fds = fd->next;
+		jffs2_free_full_dirent(fd);
+	}
+
+	up(&f->sem);
+};
+
diff --git a/fs/jffs2/scan.c b/fs/jffs2/scan.c
new file mode 100644
index 00000000000000..ccfab13ba92d16
--- /dev/null
+++ b/fs/jffs2/scan.c
@@ -0,0 +1,756 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright (C) 2001 Red Hat, Inc.
+ *
+ * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
+ *
+ * The original JFFS, from which the design for JFFS2 was derived,
+ * was designed and implemented by Axis Communications AB.
+ *
+ * The contents of this file are subject to the Red Hat eCos Public
+ * License Version 1.1 (the "Licence"); you may not use this file
+ * except in compliance with the Licence.  You may obtain a copy of
+ * the Licence at http://www.redhat.com/
+ *
+ * Software distributed under the Licence is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing rights and
+ * limitations under the Licence.
+ *
+ * The Original Code is JFFS2 - Journalling Flash File System, version 2
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in
+ * which case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the RHEPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the RHEPL or the GPL.
+ *
+ * $Id: scan.c,v 1.51.2.4 2003/11/02 13:51:18 dwmw2 Exp $
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/jffs2.h>
+#include <linux/mtd/mtd.h>
+#include <linux/pagemap.h>
+#include "nodelist.h"
+#include <linux/crc32.h>
+
+
+#define DIRTY_SPACE(x) do { typeof(x) _x = (x); \
+		c->free_size -= _x; c->dirty_size += _x; \
+		jeb->free_size -= _x ; jeb->dirty_size += _x; \
+		}while(0)
+#define USED_SPACE(x) do { typeof(x) _x = (x); \
+		c->free_size -= _x; c->used_size += _x; \
+		jeb->free_size -= _x ; jeb->used_size += _x; \
+		}while(0)
+
+#define noisy_printk(noise, args...) do { \
+	if (*(noise)) { \
+		printk(KERN_NOTICE args); \
+		 (*(noise))--; \
+		 if (!(*(noise))) { \
+			 printk(KERN_NOTICE "Further such events for this erase block will not be printed\n"); \
+		 } \
+	} \
+} while(0)
+
+static uint32_t pseudo_random;
+static void jffs2_rotate_lists(struct jffs2_sb_info *c);
+
+static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
+
+/* These helper functions _must_ increase ofs and also do the dirty/used space accounting. 
+ * Returning an error will abort the mount - bad checksums etc. should just mark the space
+ * as dirty.
+ */
+static int jffs2_scan_empty(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, __u32 *ofs, int *noise);
+static int jffs2_scan_inode_node(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, __u32 *ofs);
+static int jffs2_scan_dirent_node(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, __u32 *ofs);
+
+
+int jffs2_scan_medium(struct jffs2_sb_info *c)
+{
+	int i, ret;
+	__u32 empty_blocks = 0;
+
+	if (!c->blocks) {
+		printk(KERN_WARNING "EEEK! c->blocks is NULL!\n");
+		return -EINVAL;
+	}
+	for (i=0; i<c->nr_blocks; i++) {
+		struct jffs2_eraseblock *jeb = &c->blocks[i];
+
+		ret = jffs2_scan_eraseblock(c, jeb);
+		if (ret < 0)
+			return ret;
+
+		ACCT_PARANOIA_CHECK(jeb);
+
+		/* Now decide which list to put it on */
+		if (ret == 1) {
+			/* 
+			 * Empty block.   Since we can't be sure it 
+			 * was entirely erased, we just queue it for erase
+			 * again.  It will be marked as such when the erase
+			 * is complete.  Meanwhile we still count it as empty
+			 * for later checks.
+			 */
+			list_add(&jeb->list, &c->erase_pending_list);
+			empty_blocks++;
+			c->nr_erasing_blocks++;
+		} else if (jeb->used_size == PAD(sizeof(struct jffs2_unknown_node)) && !jeb->first_node->next_in_ino) {
+			/* Only a CLEANMARKER node is valid */
+			if (!jeb->dirty_size) {
+				/* It's actually free */
+				list_add(&jeb->list, &c->free_list);
+				c->nr_free_blocks++;
+			} else {
+				/* Dirt */
+				D1(printk(KERN_DEBUG "Adding all-dirty block at 0x%08x to erase_pending_list\n", jeb->offset));
+				list_add(&jeb->list, &c->erase_pending_list);
+				c->nr_erasing_blocks++;
+			}
+		} else if (jeb->used_size > c->sector_size - (2*sizeof(struct jffs2_raw_inode))) {
+                        /* Full (or almost full) of clean data. Clean list */
+                        list_add(&jeb->list, &c->clean_list);
+                } else if (jeb->used_size) {
+                        /* Some data, but not full. Dirty list. */
+                        /* Except that we want to remember the block with most free space,
+                           and stick it in the 'nextblock' position to start writing to it.
+                           Later when we do snapshots, this must be the most recent block,
+                           not the one with most free space.
+                        */
+                        if (jeb->free_size > 2*sizeof(struct jffs2_raw_inode) && 
+                                (!c->nextblock || c->nextblock->free_size < jeb->free_size)) {
+                                /* Better candidate for the next writes to go to */
+                                if (c->nextblock)
+                                        list_add(&c->nextblock->list, &c->dirty_list);
+                                c->nextblock = jeb;
+                        } else {
+                                list_add(&jeb->list, &c->dirty_list);
+                        }
+		} else {
+			/* Nothing valid - not even a clean marker. Needs erasing. */
+                        /* For now we just put it on the erasing list. We'll start the erases later */
+			printk(KERN_NOTICE "JFFS2: Erase block at 0x%08x is not formatted. It will be erased\n", jeb->offset);
+                        list_add(&jeb->list, &c->erase_pending_list);
+			c->nr_erasing_blocks++;
+		}
+	}
+	/* Rotate the lists by some number to ensure wear levelling */
+	jffs2_rotate_lists(c);
+
+	if (c->nr_erasing_blocks) {
+		if (!c->used_size && empty_blocks != c->nr_blocks) {
+			printk(KERN_NOTICE "Cowardly refusing to erase blocks on filesystem with no valid JFFS2 nodes\n");
+			return -EIO;
+		}
+		jffs2_erase_pending_trigger(c);
+	}
+	return 0;
+}
+
+static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb) {
+	struct jffs2_unknown_node node;
+	__u32 ofs, prevofs;
+	__u32 hdr_crc, nodetype;
+	int err;
+	int noise = 0;
+
+	ofs = jeb->offset;
+	prevofs = jeb->offset - 1;
+
+	D1(printk(KERN_DEBUG "jffs2_scan_eraseblock(): Scanning block at 0x%x\n", ofs));
+
+	err = jffs2_scan_empty(c, jeb, &ofs, &noise);
+	if (err) return err;
+	if (ofs == jeb->offset + c->sector_size) {
+		D1(printk(KERN_DEBUG "Block at 0x%08x is empty (erased)\n", jeb->offset));
+		return 1;	/* special return code */
+	}
+	
+	noise = 10;
+
+	while(ofs < jeb->offset + c->sector_size) {
+		ssize_t retlen;
+		ACCT_PARANOIA_CHECK(jeb);
+		
+		if (ofs & 3) {
+			printk(KERN_WARNING "Eep. ofs 0x%08x not word-aligned!\n", ofs);
+			ofs = (ofs+3)&~3;
+			continue;
+		}
+		if (ofs == prevofs) {
+			printk(KERN_WARNING "ofs 0x%08x has already been seen. Skipping\n", ofs);
+			DIRTY_SPACE(4);
+			ofs += 4;
+			continue;
+		}
+		prevofs = ofs;
+		
+		if (jeb->offset + c->sector_size < ofs + sizeof(node)) {
+			D1(printk(KERN_DEBUG "Fewer than %d bytes left to end of block. Not reading\n", sizeof(struct jffs2_unknown_node)));
+			DIRTY_SPACE((jeb->offset + c->sector_size)-ofs);
+			break;
+		}
+
+		err = c->mtd->read(c->mtd, ofs, sizeof(node), &retlen, (char *)&node);
+		
+		if (err) {
+			D1(printk(KERN_WARNING "mtd->read(0x%x bytes from 0x%x) returned %d\n", sizeof(node), ofs, err));
+			return err;
+		}
+		if (retlen < sizeof(node)) {
+			D1(printk(KERN_WARNING "Read at 0x%x gave only 0x%x bytes\n", ofs, retlen));
+			DIRTY_SPACE(retlen);
+			ofs += retlen;
+			continue;
+		}
+
+		if (node.magic == JFFS2_EMPTY_BITMASK && node.nodetype == JFFS2_EMPTY_BITMASK) {
+			D1(printk(KERN_DEBUG "Found empty flash at 0x%x\n", ofs));
+			err = jffs2_scan_empty(c, jeb, &ofs, &noise);
+			if (err) return err;
+			continue;
+		}
+
+		if (ofs == jeb->offset && node.magic == KSAMTIB_CIGAM_2SFFJ) {
+			printk(KERN_WARNING "Magic bitmask is backwards at offset 0x%08x. Wrong endian filesystem?\n", ofs);
+			DIRTY_SPACE(4);
+			ofs += 4;
+			continue;
+		}
+		if (node.magic == JFFS2_DIRTY_BITMASK) {
+			D1(printk(KERN_DEBUG "Empty bitmask at 0x%08x\n", ofs));
+			DIRTY_SPACE(4);
+			ofs += 4;
+			continue;
+		}
+		if (node.magic == JFFS2_OLD_MAGIC_BITMASK) {
+			printk(KERN_WARNING "Old JFFS2 bitmask found at 0x%08x\n", ofs);
+			printk(KERN_WARNING "You cannot use older JFFS2 filesystems with newer kernels\n");
+			DIRTY_SPACE(4);
+			ofs += 4;
+			continue;
+		}
+		if (node.magic != JFFS2_MAGIC_BITMASK) {
+			/* OK. We're out of possibilities. Whinge and move on */
+			noisy_printk(&noise, "jffs2_scan_eraseblock(): Magic bitmask 0x%04x not found at 0x%08x: 0x%04x instead\n", JFFS2_MAGIC_BITMASK, ofs, node.magic);
+			DIRTY_SPACE(4);
+			ofs += 4;
+			continue;
+		}
+		/* We seem to have a node of sorts. Check the CRC */
+		nodetype = node.nodetype;
+		node.nodetype |= JFFS2_NODE_ACCURATE;
+		hdr_crc = crc32(0, &node, sizeof(node)-4);
+		node.nodetype = nodetype;
+		if (hdr_crc != node.hdr_crc) {
+			noisy_printk(&noise, "jffs2_scan_eraseblock(): Node at 0x%08x {0x%04x, 0x%04x, 0x%08x) has invalid CRC 0x%08x (calculated 0x%08x)\n",
+				     ofs, node.magic, node.nodetype, node.totlen, node.hdr_crc, hdr_crc);
+			DIRTY_SPACE(4);
+			ofs += 4;
+			continue;
+		}
+
+		if (ofs + node.totlen > jeb->offset + c->sector_size) {
+			/* Eep. Node goes over the end of the erase block. */
+			printk(KERN_WARNING "Node at 0x%08x with length 0x%08x would run over the end of the erase block\n",
+			       ofs, node.totlen);
+			printk(KERN_WARNING "Perhaps the file system was created with the wrong erase size?\n");
+			DIRTY_SPACE(4);
+			ofs += 4;
+			continue;
+		}
+
+		switch(node.nodetype | JFFS2_NODE_ACCURATE) {
+		case JFFS2_NODETYPE_INODE:
+			err = jffs2_scan_inode_node(c, jeb, &ofs);
+			if (err) return err;
+			break;
+			
+		case JFFS2_NODETYPE_DIRENT:
+			err = jffs2_scan_dirent_node(c, jeb, &ofs);
+			if (err) return err;
+			break;
+
+		case JFFS2_NODETYPE_CLEANMARKER:
+			if (node.totlen != sizeof(struct jffs2_unknown_node)) {
+				printk(KERN_NOTICE "CLEANMARKER node found at 0x%08x has totlen 0x%x != normal 0x%x\n", 
+				       ofs, node.totlen, sizeof(struct jffs2_unknown_node));
+				DIRTY_SPACE(PAD(sizeof(struct jffs2_unknown_node)));
+			} else if (jeb->first_node) {
+				printk(KERN_NOTICE "CLEANMARKER node found at 0x%08x, not first node in block (0x%08x)\n", ofs, jeb->offset);
+				DIRTY_SPACE(PAD(sizeof(struct jffs2_unknown_node)));
+				ofs += PAD(sizeof(struct jffs2_unknown_node));
+				continue;
+			} else {
+				struct jffs2_raw_node_ref *marker_ref = jffs2_alloc_raw_node_ref();
+				if (!marker_ref) {
+					printk(KERN_NOTICE "Failed to allocate node ref for clean marker\n");
+					return -ENOMEM;
+				}
+				marker_ref->next_in_ino = NULL;
+				marker_ref->next_phys = NULL;
+				marker_ref->flash_offset = ofs;
+				marker_ref->totlen = sizeof(struct jffs2_unknown_node);
+				jeb->first_node = jeb->last_node = marker_ref;
+			     
+				USED_SPACE(PAD(sizeof(struct jffs2_unknown_node)));
+			}
+			ofs += PAD(sizeof(struct jffs2_unknown_node));
+			break;
+
+		default:
+			switch (node.nodetype & JFFS2_COMPAT_MASK) {
+			case JFFS2_FEATURE_ROCOMPAT:
+				printk(KERN_NOTICE "Read-only compatible feature node (0x%04x) found at offset 0x%08x\n", node.nodetype, ofs);
+			        c->flags |= JFFS2_SB_FLAG_RO;
+				if (!(OFNI_BS_2SFFJ(c)->s_flags & MS_RDONLY))
+					return -EROFS;
+				DIRTY_SPACE(PAD(node.totlen));
+				ofs += PAD(node.totlen);
+				continue;
+
+			case JFFS2_FEATURE_INCOMPAT:
+				printk(KERN_NOTICE "Incompatible feature node (0x%04x) found at offset 0x%08x\n", node.nodetype, ofs);
+				return -EINVAL;
+
+			case JFFS2_FEATURE_RWCOMPAT_DELETE:
+				printk(KERN_NOTICE "Unknown but compatible feature node (0x%04x) found at offset 0x%08x\n", node.nodetype, ofs);
+				DIRTY_SPACE(PAD(node.totlen));
+				ofs += PAD(node.totlen);
+				break;
+
+			case JFFS2_FEATURE_RWCOMPAT_COPY:
+				printk(KERN_NOTICE "Unknown but compatible feature node (0x%04x) found at offset 0x%08x\n", node.nodetype, ofs);
+				USED_SPACE(PAD(node.totlen));
+				ofs += PAD(node.totlen);
+				break;
+			}
+		}
+	}
+	D1(printk(KERN_DEBUG "Block at 0x%08x: free 0x%08x, dirty 0x%08x, used 0x%08x\n", jeb->offset, 
+		  jeb->free_size, jeb->dirty_size, jeb->used_size));
+	return 0;
+}
+
+/* We're pointing at the first empty word on the flash. Scan and account for the whole dirty region */
+static int jffs2_scan_empty(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, __u32 *startofs, int *noise)
+{
+	__u32 *buf;
+	__u32 scanlen = (jeb->offset + c->sector_size) - *startofs;
+	__u32 curofs = *startofs;
+	
+	buf = kmalloc(min((__u32)PAGE_SIZE, scanlen), GFP_KERNEL);
+	if (!buf) {
+		printk(KERN_WARNING "Scan buffer allocation failed\n");
+		return -ENOMEM;
+	}
+	while(scanlen) {
+		ssize_t retlen;
+		int ret, i;
+		
+		ret = c->mtd->read(c->mtd, curofs, min((__u32)PAGE_SIZE, scanlen), &retlen, (char *)buf);
+		if(ret) {
+			D1(printk(KERN_WARNING "jffs2_scan_empty(): Read 0x%x bytes at 0x%08x returned %d\n", min((__u32)PAGE_SIZE, scanlen), curofs, ret));
+			kfree(buf);
+			return ret;
+		}
+		if (retlen < 4) {
+			D1(printk(KERN_WARNING "Eep. too few bytes read in scan_empty()\n"));
+			kfree(buf);
+			return -EIO;
+		}
+		for (i=0; i<(retlen / 4); i++) {
+			if (buf[i] != 0xffffffff) {
+				curofs += i*4;
+
+				noisy_printk(noise, "jffs2_scan_empty(): Empty block at 0x%08x ends at 0x%08x (with 0x%08x)! Marking dirty\n", *startofs, curofs, buf[i]);
+				DIRTY_SPACE(curofs - (*startofs));
+				*startofs = curofs;
+				kfree(buf);
+				return 0;
+			}
+		}
+		scanlen -= retlen&~3;
+		curofs += retlen&~3;
+	}
+
+	D1(printk(KERN_DEBUG "Empty flash detected from 0x%08x to 0x%08x\n", *startofs, curofs));
+	kfree(buf);
+	*startofs = curofs;
+	return 0;
+}
+
+static struct jffs2_inode_cache *jffs2_scan_make_ino_cache(struct jffs2_sb_info *c, __u32 ino)
+{
+	struct jffs2_inode_cache *ic;
+
+	ic = jffs2_get_ino_cache(c, ino);
+	if (ic)
+		return ic;
+
+	ic = jffs2_alloc_inode_cache();
+	if (!ic) {
+		printk(KERN_NOTICE "jffs2_scan_make_inode_cache(): allocation of inode cache failed\n");
+		return NULL;
+	}
+	memset(ic, 0, sizeof(*ic));
+	ic->scan = kmalloc(sizeof(struct jffs2_scan_info), GFP_KERNEL);
+	if (!ic->scan) {
+		printk(KERN_NOTICE "jffs2_scan_make_inode_cache(): allocation of scan info for inode cache failed\n");
+		jffs2_free_inode_cache(ic);
+		return NULL;
+	}
+	memset(ic->scan, 0, sizeof(*ic->scan));
+	ic->ino = ino;
+	ic->nodes = (void *)ic;
+	jffs2_add_ino_cache(c, ic);
+	if (ino == 1)
+		ic->nlink=1;
+	return ic;
+}
+
+static int jffs2_scan_inode_node(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, __u32 *ofs)
+{
+	struct jffs2_raw_node_ref *raw;
+	struct jffs2_full_dnode *fn;
+	struct jffs2_tmp_dnode_info *tn, **tn_list;
+	struct jffs2_inode_cache *ic;
+	struct jffs2_raw_inode ri;
+	__u32 crc;
+	__u16 oldnodetype;
+	int ret;
+	ssize_t retlen;
+
+	D1(printk(KERN_DEBUG "jffs2_scan_inode_node(): Node at 0x%08x\n", *ofs));
+
+	ret = c->mtd->read(c->mtd, *ofs, sizeof(ri), &retlen, (char *)&ri);
+	if (ret) {
+		printk(KERN_NOTICE "jffs2_scan_inode_node(): Read error at 0x%08x: %d\n", *ofs, ret);
+		return ret;
+	}
+	if (retlen != sizeof(ri)) {
+		printk(KERN_NOTICE "Short read: 0x%x bytes at 0x%08x instead of requested %x\n", 
+		       retlen, *ofs, sizeof(ri));
+		return -EIO;
+	}
+
+	/* We sort of assume that the node was accurate when it was 
+	   first written to the medium :) */
+	oldnodetype = ri.nodetype;
+	ri.nodetype |= JFFS2_NODE_ACCURATE;
+	crc = crc32(0, &ri, sizeof(ri)-8);
+	ri.nodetype = oldnodetype;
+
+	if(crc != ri.node_crc) {
+		printk(KERN_NOTICE "jffs2_scan_inode_node(): CRC failed on node at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
+		       *ofs, ri.node_crc, crc);
+		/* FIXME: Why do we believe totlen? */
+		DIRTY_SPACE(4);
+		*ofs += 4;
+		return 0;
+	}
+	/* There was a bug where we wrote hole nodes out with csize/dsize
+	   swapped. Deal with it */
+	if (ri.compr == JFFS2_COMPR_ZERO && !ri.dsize && ri.csize) {
+		ri.dsize = ri.csize;
+		ri.csize = 0;
+	}
+
+	if (ri.csize) {
+		/* Check data CRC too */
+		unsigned char *dbuf;
+		__u32 crc;
+
+		dbuf = kmalloc(PAGE_CACHE_SIZE, GFP_KERNEL);
+		if (!dbuf) {
+			printk(KERN_NOTICE "jffs2_scan_inode_node(): allocation of temporary data buffer for CRC check failed\n");
+			return -ENOMEM;
+		}
+		ret = c->mtd->read(c->mtd, *ofs+sizeof(ri), ri.csize, &retlen, dbuf);
+		if (ret) {
+			printk(KERN_NOTICE "jffs2_scan_inode_node(): Read error at 0x%08x: %d\n", *ofs+sizeof(ri), ret);
+			kfree(dbuf);
+			return ret;
+		}
+		if (retlen != ri.csize) {
+			printk(KERN_NOTICE "Short read: 0x%x bytes at 0x%08x instead of requested %x\n", 
+			       retlen, *ofs+ sizeof(ri), ri.csize);
+			kfree(dbuf);
+			return -EIO;
+		}
+		crc = crc32(0, dbuf, ri.csize);
+		kfree(dbuf);
+		if (crc != ri.data_crc) {
+			printk(KERN_NOTICE "jffs2_scan_inode_node(): Data CRC failed on node at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
+			       *ofs, ri.data_crc, crc);
+			DIRTY_SPACE(PAD(ri.totlen));
+			*ofs += PAD(ri.totlen);
+			return 0;
+		}
+	}
+
+	/* Wheee. It worked */
+	raw = jffs2_alloc_raw_node_ref();
+	if (!raw) {
+		printk(KERN_NOTICE "jffs2_scan_inode_node(): allocation of node reference failed\n");
+		return -ENOMEM;
+	}
+	tn = jffs2_alloc_tmp_dnode_info();
+	if (!tn) {
+		jffs2_free_raw_node_ref(raw);
+		return -ENOMEM;
+	}
+	fn = jffs2_alloc_full_dnode();
+	if (!fn) {
+		jffs2_free_tmp_dnode_info(tn);
+		jffs2_free_raw_node_ref(raw);
+		return -ENOMEM;
+	}
+	ic = jffs2_scan_make_ino_cache(c, ri.ino);
+	if (!ic) {
+		jffs2_free_full_dnode(fn);
+		jffs2_free_tmp_dnode_info(tn);
+		jffs2_free_raw_node_ref(raw);
+		return -ENOMEM;
+	}
+
+	/* Build the data structures and file them for later */
+	raw->flash_offset = *ofs;
+	raw->totlen = PAD(ri.totlen);
+	raw->next_phys = NULL;
+	raw->next_in_ino = ic->nodes;
+	ic->nodes = raw;
+	if (!jeb->first_node)
+		jeb->first_node = raw;
+	if (jeb->last_node)
+		jeb->last_node->next_phys = raw;
+	jeb->last_node = raw;
+
+	D1(printk(KERN_DEBUG "Node is ino #%u, version %d. Range 0x%x-0x%x\n", 
+		  ri.ino, ri.version, ri.offset, ri.offset+ri.dsize));
+
+	pseudo_random += ri.version;
+
+	for (tn_list = &ic->scan->tmpnodes; *tn_list; tn_list = &((*tn_list)->next)) {
+		if ((*tn_list)->version < ri.version)
+			continue;
+		if ((*tn_list)->version > ri.version) 
+			break;
+		/* Wheee. We've found another instance of the same version number.
+		   We should obsolete one of them. 
+		*/
+		D1(printk(KERN_DEBUG "Duplicate version %d found in ino #%u. Previous one is at 0x%08x\n", ri.version, ic->ino, (*tn_list)->fn->raw->flash_offset &~3));
+		if (!jeb->used_size) {
+			D1(printk(KERN_DEBUG "No valid nodes yet found in this eraseblock 0x%08x, so obsoleting the new instance at 0x%08x\n", 
+				  jeb->offset, raw->flash_offset & ~3));
+			ri.nodetype &= ~JFFS2_NODE_ACCURATE;
+			/* Perhaps we could also mark it as such on the medium. Maybe later */
+		}
+		break;
+	}
+
+	if (ri.nodetype & JFFS2_NODE_ACCURATE) {
+		memset(fn,0,sizeof(*fn));
+
+		fn->ofs = ri.offset;
+		fn->size = ri.dsize;
+		fn->frags = 0;
+		fn->raw = raw;
+
+		tn->next = NULL;
+		tn->fn = fn;
+		tn->version = ri.version;
+
+		USED_SPACE(PAD(ri.totlen));
+		jffs2_add_tn_to_list(tn, &ic->scan->tmpnodes);
+		/* Make sure the one we just added is the _last_ in the list
+		   with this version number, so the older ones get obsoleted */
+		while (tn->next && tn->next->version == tn->version) {
+
+			D1(printk(KERN_DEBUG "Shifting new node at 0x%08x after other node at 0x%08x for version %d in list\n",
+				  fn->raw->flash_offset&~3, tn->next->fn->raw->flash_offset &~3, ri.version));
+
+			if(tn->fn != fn)
+				BUG();
+			tn->fn = tn->next->fn;
+			tn->next->fn = fn;
+			tn = tn->next;
+		}
+	} else {
+		jffs2_free_full_dnode(fn);
+		jffs2_free_tmp_dnode_info(tn);
+		raw->flash_offset |= 1;
+		DIRTY_SPACE(PAD(ri.totlen));
+	}		
+	*ofs += PAD(ri.totlen);
+	return 0;
+}
+
+static int jffs2_scan_dirent_node(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, __u32 *ofs)
+{
+	struct jffs2_raw_node_ref *raw;
+	struct jffs2_full_dirent *fd;
+	struct jffs2_inode_cache *ic;
+	struct jffs2_raw_dirent rd;
+	__u16 oldnodetype;
+	int ret;
+	__u32 crc;
+	ssize_t retlen;
+
+	D1(printk(KERN_DEBUG "jffs2_scan_dirent_node(): Node at 0x%08x\n", *ofs));
+
+	ret = c->mtd->read(c->mtd, *ofs, sizeof(rd), &retlen, (char *)&rd);
+	if (ret) {
+		printk(KERN_NOTICE "jffs2_scan_dirent_node(): Read error at 0x%08x: %d\n", *ofs, ret);
+		return ret;
+	}
+	if (retlen != sizeof(rd)) {
+		printk(KERN_NOTICE "Short read: 0x%x bytes at 0x%08x instead of requested %x\n", 
+		       retlen, *ofs, sizeof(rd));
+		return -EIO;
+	}
+
+	/* We sort of assume that the node was accurate when it was 
+	   first written to the medium :) */
+	oldnodetype = rd.nodetype;
+	rd.nodetype |= JFFS2_NODE_ACCURATE;
+	crc = crc32(0, &rd, sizeof(rd)-8);
+	rd.nodetype = oldnodetype;
+
+	if (crc != rd.node_crc) {
+		printk(KERN_NOTICE "jffs2_scan_dirent_node(): Node CRC failed on node at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
+		       *ofs, rd.node_crc, crc);
+		/* FIXME: Why do we believe totlen? */
+		DIRTY_SPACE(4);
+		*ofs += 4;
+		return 0;
+	}
+
+	pseudo_random += rd.version;
+
+	fd = jffs2_alloc_full_dirent(rd.nsize+1);
+	if (!fd) {
+		return -ENOMEM;
+}
+	ret = c->mtd->read(c->mtd, *ofs + sizeof(rd), rd.nsize, &retlen, &fd->name[0]);
+	if (ret) {
+		jffs2_free_full_dirent(fd);
+		printk(KERN_NOTICE "jffs2_scan_dirent_node(): Read error at 0x%08x: %d\n", 
+		       *ofs + sizeof(rd), ret);
+		return ret;
+	}
+	if (retlen != rd.nsize) {
+		jffs2_free_full_dirent(fd);
+		printk(KERN_NOTICE "Short read: 0x%x bytes at 0x%08x instead of requested %x\n", 
+		       retlen, *ofs + sizeof(rd), rd.nsize);
+		return -EIO;
+	}
+	crc = crc32(0, fd->name, rd.nsize);
+	if (crc != rd.name_crc) {
+		printk(KERN_NOTICE "jffs2_scan_dirent_node(): Name CRC failed on node at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
+		       *ofs, rd.name_crc, crc);	
+		fd->name[rd.nsize]=0;
+		D1(printk(KERN_NOTICE "Name for which CRC failed is (now) '%s', ino #%d\n", fd->name, rd.ino));
+		jffs2_free_full_dirent(fd);
+		/* FIXME: Why do we believe totlen? */
+		DIRTY_SPACE(PAD(rd.totlen));
+		*ofs += PAD(rd.totlen);
+		return 0;
+	}
+	raw = jffs2_alloc_raw_node_ref();
+	if (!raw) {
+		jffs2_free_full_dirent(fd);
+		printk(KERN_NOTICE "jffs2_scan_dirent_node(): allocation of node reference failed\n");
+		return -ENOMEM;
+	}
+	ic = jffs2_scan_make_ino_cache(c, rd.pino);
+	if (!ic) {
+		jffs2_free_full_dirent(fd);
+		jffs2_free_raw_node_ref(raw);
+		return -ENOMEM;
+	}
+	
+	raw->totlen = PAD(rd.totlen);
+	raw->flash_offset = *ofs;
+	raw->next_phys = NULL;
+	raw->next_in_ino = ic->nodes;
+	ic->nodes = raw;
+	if (!jeb->first_node)
+		jeb->first_node = raw;
+	if (jeb->last_node)
+		jeb->last_node->next_phys = raw;
+	jeb->last_node = raw;
+
+	if (rd.nodetype & JFFS2_NODE_ACCURATE) {
+		fd->raw = raw;
+		fd->next = NULL;
+		fd->version = rd.version;
+		fd->ino = rd.ino;
+		fd->name[rd.nsize]=0;
+		fd->nhash = full_name_hash(fd->name, rd.nsize);
+		fd->type = rd.type;
+
+		USED_SPACE(PAD(rd.totlen));
+		jffs2_add_fd_to_list(c, fd, &ic->scan->dents);
+	} else {
+		raw->flash_offset |= 1;
+		jffs2_free_full_dirent(fd);
+
+		DIRTY_SPACE(PAD(rd.totlen));
+	} 
+	*ofs += PAD(rd.totlen);
+	return 0;
+}
+
+static int count_list(struct list_head *l)
+{
+	uint32_t count = 0;
+	struct list_head *tmp;
+
+	list_for_each(tmp, l) {
+		count++;
+	}
+	return count;
+}
+
+/* Note: This breaks if list_empty(head). I don't care. You
+   might, if you copy this code and use it elsewhere :) */
+static void rotate_list(struct list_head *head, uint32_t count)
+{
+	struct list_head *n = head->next;
+
+	list_del(head);
+	while(count--)
+		n = n->next;
+	list_add(head, n);
+}
+
+static void jffs2_rotate_lists(struct jffs2_sb_info *c)
+{
+	uint32_t x;
+
+	x = count_list(&c->clean_list);
+	if (x)
+		rotate_list((&c->clean_list), pseudo_random % x);
+
+	x = count_list(&c->dirty_list);
+	if (x)
+		rotate_list((&c->dirty_list), pseudo_random % x);
+
+	if (c->nr_erasing_blocks)
+		rotate_list((&c->erase_pending_list), pseudo_random % c->nr_erasing_blocks);
+
+	if (c->nr_free_blocks) /* Not that it should ever be zero */
+		rotate_list((&c->free_list), pseudo_random % c->nr_free_blocks);
+}
diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c
new file mode 100644
index 00000000000000..5f01337ad4fd2b
--- /dev/null
+++ b/fs/jffs2/super.c
@@ -0,0 +1,402 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright (C) 2001 Red Hat, Inc.
+ *
+ * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
+ *
+ * The original JFFS, from which the design for JFFS2 was derived,
+ * was designed and implemented by Axis Communications AB.
+ *
+ * The contents of this file are subject to the Red Hat eCos Public
+ * License Version 1.1 (the "Licence"); you may not use this file
+ * except in compliance with the Licence.  You may obtain a copy of
+ * the Licence at http://www.redhat.com/
+ *
+ * Software distributed under the Licence is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing rights and
+ * limitations under the Licence.
+ *
+ * The Original Code is JFFS2 - Journalling Flash File System, version 2
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in
+ * which case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the RHEPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the RHEPL or the GPL.
+ *
+ * $Id: super.c,v 1.48.2.3 2002/10/11 09:04:44 dwmw2 Exp $
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/fs.h>
+#include <linux/jffs2.h>
+#include <linux/pagemap.h>
+#include <linux/mtd/mtd.h>
+#include <linux/interrupt.h>
+#include "nodelist.h"
+
+#ifndef MTD_BLOCK_MAJOR
+#define MTD_BLOCK_MAJOR 31
+#endif
+
+extern void jffs2_read_inode (struct inode *);
+void jffs2_put_super (struct super_block *);
+void jffs2_write_super (struct super_block *);
+static int jffs2_statfs (struct super_block *, struct statfs *);
+int jffs2_remount_fs (struct super_block *, int *, char *);
+extern void jffs2_clear_inode (struct inode *);
+
+static struct super_operations jffs2_super_operations =
+{
+	read_inode:	jffs2_read_inode,
+//	delete_inode:	jffs2_delete_inode,
+	put_super:	jffs2_put_super,
+	write_super:	jffs2_write_super,
+	statfs:		jffs2_statfs,
+	remount_fs:	jffs2_remount_fs,
+	clear_inode:	jffs2_clear_inode
+};
+
+static int jffs2_statfs(struct super_block *sb, struct statfs *buf)
+{
+	struct jffs2_sb_info *c = JFFS2_SB_INFO(sb);
+	unsigned long avail;
+
+	buf->f_type = JFFS2_SUPER_MAGIC;
+	buf->f_bsize = 1 << PAGE_SHIFT;
+	buf->f_blocks = c->flash_size >> PAGE_SHIFT;
+	buf->f_files = 0;
+	buf->f_ffree = 0;
+	buf->f_namelen = JFFS2_MAX_NAME_LEN;
+
+	spin_lock_bh(&c->erase_completion_lock);
+
+	avail = c->dirty_size + c->free_size;
+	if (avail > c->sector_size * JFFS2_RESERVED_BLOCKS_WRITE)
+		avail -= c->sector_size * JFFS2_RESERVED_BLOCKS_WRITE;
+	else
+		avail = 0;
+
+	buf->f_bavail = buf->f_bfree = avail >> PAGE_SHIFT;
+
+#if CONFIG_JFFS2_FS_DEBUG > 0
+	printk(KERN_DEBUG "STATFS:\n");
+	printk(KERN_DEBUG "flash_size: %08x\n", c->flash_size);
+	printk(KERN_DEBUG "used_size: %08x\n", c->used_size);
+	printk(KERN_DEBUG "dirty_size: %08x\n", c->dirty_size);
+	printk(KERN_DEBUG "free_size: %08x\n", c->free_size);
+	printk(KERN_DEBUG "erasing_size: %08x\n", c->erasing_size);
+	printk(KERN_DEBUG "bad_size: %08x\n", c->bad_size);
+	printk(KERN_DEBUG "sector_size: %08x\n", c->sector_size);
+
+	if (c->nextblock) {
+		printk(KERN_DEBUG "nextblock: 0x%08x\n", c->nextblock->offset);
+	} else {
+		printk(KERN_DEBUG "nextblock: NULL\n");
+	}
+	if (c->gcblock) {
+		printk(KERN_DEBUG "gcblock: 0x%08x\n", c->gcblock->offset);
+	} else {
+		printk(KERN_DEBUG "gcblock: NULL\n");
+	}
+	if (list_empty(&c->clean_list)) {
+		printk(KERN_DEBUG "clean_list: empty\n");
+	} else {
+		struct list_head *this;
+
+		list_for_each(this, &c->clean_list) {
+			struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
+			printk(KERN_DEBUG "clean_list: %08x\n", jeb->offset);
+		}
+	}
+	if (list_empty(&c->dirty_list)) {
+		printk(KERN_DEBUG "dirty_list: empty\n");
+	} else {
+		struct list_head *this;
+
+		list_for_each(this, &c->dirty_list) {
+			struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
+			printk(KERN_DEBUG "dirty_list: %08x\n", jeb->offset);
+		}
+	}
+	if (list_empty(&c->erasing_list)) {
+		printk(KERN_DEBUG "erasing_list: empty\n");
+	} else {
+		struct list_head *this;
+
+		list_for_each(this, &c->erasing_list) {
+			struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
+			printk(KERN_DEBUG "erasing_list: %08x\n", jeb->offset);
+		}
+	}
+	if (list_empty(&c->erase_pending_list)) {
+		printk(KERN_DEBUG "erase_pending_list: empty\n");
+	} else {
+		struct list_head *this;
+
+		list_for_each(this, &c->erase_pending_list) {
+			struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
+			printk(KERN_DEBUG "erase_pending_list: %08x\n", jeb->offset);
+		}
+	}
+	if (list_empty(&c->free_list)) {
+		printk(KERN_DEBUG "free_list: empty\n");
+	} else {
+		struct list_head *this;
+
+		list_for_each(this, &c->free_list) {
+			struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
+			printk(KERN_DEBUG "free_list: %08x\n", jeb->offset);
+		}
+	}
+	if (list_empty(&c->bad_list)) {
+		printk(KERN_DEBUG "bad_list: empty\n");
+	} else {
+		struct list_head *this;
+
+		list_for_each(this, &c->bad_list) {
+			struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
+			printk(KERN_DEBUG "bad_list: %08x\n", jeb->offset);
+		}
+	}
+	if (list_empty(&c->bad_used_list)) {
+		printk(KERN_DEBUG "bad_used_list: empty\n");
+	} else {
+		struct list_head *this;
+
+		list_for_each(this, &c->bad_used_list) {
+			struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
+			printk(KERN_DEBUG "bad_used_list: %08x\n", jeb->offset);
+		}
+	}
+#endif /* CONFIG_JFFS2_FS_DEBUG */
+
+	spin_unlock_bh(&c->erase_completion_lock);
+
+
+	return 0;
+}
+
+static struct super_block *jffs2_read_super(struct super_block *sb, void *data, int silent)
+{
+	struct jffs2_sb_info *c;
+	struct inode *root_i;
+	int i;
+
+	D1(printk(KERN_DEBUG "jffs2: read_super for device %s\n", kdevname(sb->s_dev)));
+
+	if (MAJOR(sb->s_dev) != MTD_BLOCK_MAJOR) {
+		if (!silent)
+			printk(KERN_DEBUG "jffs2: attempt to mount non-MTD device %s\n", kdevname(sb->s_dev));
+		return NULL;
+	}
+
+	c = JFFS2_SB_INFO(sb);
+	memset(c, 0, sizeof(*c));
+	
+	c->mtd = get_mtd_device(NULL, MINOR(sb->s_dev));
+	if (!c->mtd) {
+		D1(printk(KERN_DEBUG "jffs2: MTD device #%u doesn't appear to exist\n", MINOR(sb->s_dev)));
+		return NULL;
+	}
+	c->sector_size = c->mtd->erasesize;
+	c->free_size = c->flash_size = c->mtd->size;
+	c->nr_blocks = c->mtd->size / c->mtd->erasesize;
+	c->blocks = kmalloc(sizeof(struct jffs2_eraseblock) * c->nr_blocks, GFP_KERNEL);
+	if (!c->blocks)
+		goto out_mtd;
+	for (i=0; i<c->nr_blocks; i++) {
+		INIT_LIST_HEAD(&c->blocks[i].list);
+		c->blocks[i].offset = i * c->sector_size;
+		c->blocks[i].free_size = c->sector_size;
+		c->blocks[i].dirty_size = 0;
+		c->blocks[i].used_size = 0;
+		c->blocks[i].first_node = NULL;
+		c->blocks[i].last_node = NULL;
+	}
+		
+	spin_lock_init(&c->nodelist_lock);
+	init_MUTEX(&c->alloc_sem);
+	init_waitqueue_head(&c->erase_wait);
+	spin_lock_init(&c->erase_completion_lock);
+	spin_lock_init(&c->inocache_lock);
+
+	INIT_LIST_HEAD(&c->clean_list);
+	INIT_LIST_HEAD(&c->dirty_list);
+	INIT_LIST_HEAD(&c->erasing_list);
+	INIT_LIST_HEAD(&c->erase_pending_list);
+	INIT_LIST_HEAD(&c->erase_complete_list);
+	INIT_LIST_HEAD(&c->free_list);
+	INIT_LIST_HEAD(&c->bad_list);
+	INIT_LIST_HEAD(&c->bad_used_list);
+	c->highest_ino = 1;
+
+	if (jffs2_build_filesystem(c)) {
+		D1(printk(KERN_DEBUG "build_fs failed\n"));
+		goto out_nodes;
+	}
+
+	sb->s_op = &jffs2_super_operations;
+
+	D1(printk(KERN_DEBUG "jffs2_read_super(): Getting root inode\n"));
+	root_i = iget(sb, 1);
+	if (is_bad_inode(root_i)) {
+		D1(printk(KERN_WARNING "get root inode failed\n"));
+		goto out_nodes;
+	}
+
+	D1(printk(KERN_DEBUG "jffs2_read_super(): d_alloc_root()\n"));
+	sb->s_root = d_alloc_root(root_i);
+	if (!sb->s_root)
+		goto out_root_i;
+
+#if LINUX_VERSION_CODE >= 0x20403
+	sb->s_maxbytes = 0xFFFFFFFF;
+#endif
+	sb->s_blocksize = PAGE_CACHE_SIZE;
+	sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
+	sb->s_magic = JFFS2_SUPER_MAGIC;
+	if (!(sb->s_flags & MS_RDONLY))
+		jffs2_start_garbage_collect_thread(c);
+	return sb;
+
+ out_root_i:
+	iput(root_i);
+ out_nodes:
+	jffs2_free_ino_caches(c);
+	jffs2_free_raw_node_refs(c);
+	kfree(c->blocks);
+ out_mtd:
+	put_mtd_device(c->mtd);
+	return NULL;
+}
+
+void jffs2_put_super (struct super_block *sb)
+{
+	struct jffs2_sb_info *c = JFFS2_SB_INFO(sb);
+
+	D2(printk(KERN_DEBUG "jffs2: jffs2_put_super()\n"));
+
+	if (!(sb->s_flags & MS_RDONLY))
+		jffs2_stop_garbage_collect_thread(c);
+	jffs2_free_ino_caches(c);
+	jffs2_free_raw_node_refs(c);
+	kfree(c->blocks);
+	if (c->mtd->sync)
+		c->mtd->sync(c->mtd);
+	put_mtd_device(c->mtd);
+	
+	D1(printk(KERN_DEBUG "jffs2_put_super returning\n"));
+}
+
+int jffs2_remount_fs (struct super_block *sb, int *flags, char *data)
+{
+	struct jffs2_sb_info *c = JFFS2_SB_INFO(sb);
+
+	if (c->flags & JFFS2_SB_FLAG_RO && !(sb->s_flags & MS_RDONLY))
+		return -EROFS;
+
+	/* We stop if it was running, then restart if it needs to.
+	   This also catches the case where it was stopped and this
+	   is just a remount to restart it */
+	if (!(sb->s_flags & MS_RDONLY))
+		jffs2_stop_garbage_collect_thread(c);
+
+	if (!(*flags & MS_RDONLY))
+		jffs2_start_garbage_collect_thread(c);
+	
+	sb->s_flags = (sb->s_flags & ~MS_RDONLY)|(*flags & MS_RDONLY);
+
+	return 0;
+}
+
+void jffs2_write_super (struct super_block *sb)
+{
+	struct jffs2_sb_info *c = JFFS2_SB_INFO(sb);
+	sb->s_dirt = 0;
+
+	if (sb->s_flags & MS_RDONLY)
+		return;
+
+	jffs2_garbage_collect_trigger(c);
+	jffs2_erase_pending_blocks(c);
+	jffs2_mark_erased_blocks(c);
+}
+
+
+static DECLARE_FSTYPE_DEV(jffs2_fs_type, "jffs2", jffs2_read_super);
+
+static int __init init_jffs2_fs(void)
+{
+	int ret;
+
+	printk(KERN_NOTICE "JFFS2 version 2.1. (C) 2001 Red Hat, Inc., designed by Axis Communications AB.\n");
+
+#ifdef JFFS2_OUT_OF_KERNEL
+	/* sanity checks. Could we do these at compile time? */
+	if (sizeof(struct jffs2_sb_info) > sizeof (((struct super_block *)NULL)->u)) {
+		printk(KERN_ERR "JFFS2 error: struct jffs2_sb_info (%d bytes) doesn't fit in the super_block union (%d bytes)\n", 
+		       sizeof(struct jffs2_sb_info), sizeof (((struct super_block *)NULL)->u));
+		return -EIO;
+	}
+
+	if (sizeof(struct jffs2_inode_info) > sizeof (((struct inode *)NULL)->u)) {
+		printk(KERN_ERR "JFFS2 error: struct jffs2_inode_info (%d bytes) doesn't fit in the inode union (%d bytes)\n", 
+		       sizeof(struct jffs2_inode_info), sizeof (((struct inode *)NULL)->u));
+		return -EIO;
+	}
+#endif
+
+	ret = jffs2_zlib_init();
+	if (ret) {
+		printk(KERN_ERR "JFFS2 error: Failed to initialise zlib workspaces\n");
+		goto out;
+	}
+	ret = jffs2_create_slab_caches();
+	if (ret) {
+		printk(KERN_ERR "JFFS2 error: Failed to initialise slab caches\n");
+		goto out_zlib;
+	}
+	ret = register_filesystem(&jffs2_fs_type);
+	if (ret) {
+		printk(KERN_ERR "JFFS2 error: Failed to register filesystem\n");
+		goto out_slab;
+	}
+	return 0;
+
+ out_slab:
+	jffs2_destroy_slab_caches();
+ out_zlib:
+	jffs2_zlib_exit();
+ out:
+	return ret;
+}
+
+static void __exit exit_jffs2_fs(void)
+{
+	jffs2_destroy_slab_caches();
+	jffs2_zlib_exit();
+	unregister_filesystem(&jffs2_fs_type);
+}
+
+module_init(init_jffs2_fs);
+module_exit(exit_jffs2_fs);
+
+MODULE_DESCRIPTION("The Journalling Flash File System, v2");
+MODULE_AUTHOR("Red Hat, Inc.");
+MODULE_LICENSE("GPL"); // Actually dual-licensed, but it doesn't matter for 
+		       // the sake of this tag. It's Free Software.
diff --git a/fs/jffs2/symlink.c b/fs/jffs2/symlink.c
new file mode 100644
index 00000000000000..e1f7dec49f61c0
--- /dev/null
+++ b/fs/jffs2/symlink.c
@@ -0,0 +1,110 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright (C) 2001, 2002 Red Hat, Inc.
+ *
+ * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
+ *
+ * The original JFFS, from which the design for JFFS2 was derived,
+ * was designed and implemented by Axis Communications AB.
+ *
+ * The contents of this file are subject to the Red Hat eCos Public
+ * License Version 1.1 (the "Licence"); you may not use this file
+ * except in compliance with the Licence.  You may obtain a copy of
+ * the Licence at http://www.redhat.com/
+ *
+ * Software distributed under the Licence is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing rights and
+ * limitations under the Licence.
+ *
+ * The Original Code is JFFS2 - Journalling Flash File System, version 2
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in
+ * which case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the RHEPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the RHEPL or the GPL.
+ *
+ * $Id: symlink.c,v 1.5.2.1 2002/01/15 10:39:06 dwmw2 Exp $
+ *
+ */
+
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/fs.h>
+#include <linux/jffs2.h>
+#include "nodelist.h"
+
+int jffs2_readlink(struct dentry *dentry, char *buffer, int buflen);
+int jffs2_follow_link(struct dentry *dentry, struct nameidata *nd);
+
+struct inode_operations jffs2_symlink_inode_operations =
+{	
+	readlink:	jffs2_readlink,
+	follow_link:	jffs2_follow_link,
+	setattr:	jffs2_setattr
+};
+
+static char *jffs2_getlink(struct dentry *dentry)
+{
+	struct jffs2_inode_info *f = JFFS2_INODE_INFO(dentry->d_inode);
+	char *buf;
+	int ret;
+
+	down(&f->sem);
+	if (!f->metadata) {
+		up(&f->sem);
+		printk(KERN_NOTICE "No metadata for symlink inode #%lu\n", dentry->d_inode->i_ino);
+		return ERR_PTR(-EINVAL);
+	}
+	buf = kmalloc(f->metadata->size+1, GFP_USER);
+	if (!buf) {
+		up(&f->sem);
+		return ERR_PTR(-ENOMEM);
+	}
+	buf[f->metadata->size]=0;
+
+	ret = jffs2_read_dnode(JFFS2_SB_INFO(dentry->d_inode->i_sb), f->metadata, buf, 0, f->metadata->size);
+	up(&f->sem);
+	if (ret) {
+		kfree(buf);
+		return ERR_PTR(ret);
+	}
+	return buf;
+
+}
+int jffs2_readlink(struct dentry *dentry, char *buffer, int buflen)
+{
+	unsigned char *kbuf;
+	int ret;
+
+	kbuf = jffs2_getlink(dentry);
+	if (IS_ERR(kbuf))
+		return PTR_ERR(kbuf);
+
+	ret = vfs_readlink(dentry, buffer, buflen, kbuf);
+	kfree(kbuf);
+	return ret;
+}
+
+int jffs2_follow_link(struct dentry *dentry, struct nameidata *nd)
+{
+	unsigned char *buf;
+	int ret;
+
+	buf = jffs2_getlink(dentry);
+
+	if (IS_ERR(buf))
+		return PTR_ERR(buf);
+
+	ret = vfs_follow_link(nd, buf);
+	kfree(buf);
+	return ret;
+}
diff --git a/fs/jffs2/write.c b/fs/jffs2/write.c
new file mode 100644
index 00000000000000..4bec0e15457e9a
--- /dev/null
+++ b/fs/jffs2/write.c
@@ -0,0 +1,334 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright (C) 2001 Red Hat, Inc.
+ *
+ * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
+ *
+ * The original JFFS, from which the design for JFFS2 was derived,
+ * was designed and implemented by Axis Communications AB.
+ *
+ * The contents of this file are subject to the Red Hat eCos Public
+ * License Version 1.1 (the "Licence"); you may not use this file
+ * except in compliance with the Licence.  You may obtain a copy of
+ * the Licence at http://www.redhat.com/
+ *
+ * Software distributed under the Licence is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing rights and
+ * limitations under the Licence.
+ *
+ * The Original Code is JFFS2 - Journalling Flash File System, version 2
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in
+ * which case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the RHEPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the RHEPL or the GPL.
+ *
+ * $Id: write.c,v 1.30.2.2 2003/11/02 13:51:18 dwmw2 Exp $
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/jffs2.h>
+#include <linux/mtd/mtd.h>
+#include "nodelist.h"
+#include <linux/crc32.h>
+
+/* jffs2_new_inode: allocate a new inode and inocache, add it to the hash,
+   fill in the raw_inode while you're at it. */
+struct inode *jffs2_new_inode (struct inode *dir_i, int mode, struct jffs2_raw_inode *ri)
+{
+	struct inode *inode;
+	struct super_block *sb = dir_i->i_sb;
+	struct jffs2_inode_cache *ic;
+	struct jffs2_sb_info *c;
+	struct jffs2_inode_info *f;
+
+	D1(printk(KERN_DEBUG "jffs2_new_inode(): dir_i %ld, mode 0x%x\n", dir_i->i_ino, mode));
+
+	c = JFFS2_SB_INFO(sb);
+	memset(ri, 0, sizeof(*ri));
+
+	ic = jffs2_alloc_inode_cache();
+	if (!ic) {
+		return ERR_PTR(-ENOMEM);
+	}
+	memset(ic, 0, sizeof(*ic));
+	
+	inode = new_inode(sb);
+	
+	if (!inode) {
+		jffs2_free_inode_cache(ic);
+		return ERR_PTR(-ENOMEM);
+	}
+
+	/* Alloc jffs2_inode_info when that's split in 2.5 */
+
+	f = JFFS2_INODE_INFO(inode);
+	memset(f, 0, sizeof(*f));
+	init_MUTEX_LOCKED(&f->sem);
+	f->inocache = ic;
+	inode->i_nlink = f->inocache->nlink = 1;
+	f->inocache->nodes = (struct jffs2_raw_node_ref *)f->inocache;
+	f->inocache->ino = ri->ino = inode->i_ino = ++c->highest_ino;
+	D1(printk(KERN_DEBUG "jffs2_new_inode(): Assigned ino# %d\n", ri->ino));
+	jffs2_add_ino_cache(c, f->inocache);
+
+	ri->magic = JFFS2_MAGIC_BITMASK;
+	ri->nodetype = JFFS2_NODETYPE_INODE;
+	ri->totlen = PAD(sizeof(*ri));
+	ri->hdr_crc = crc32(0, ri, sizeof(struct jffs2_unknown_node)-4);
+	ri->mode = mode;
+	f->highest_version = ri->version = 1;
+	ri->uid = current->fsuid;
+	if (dir_i->i_mode & S_ISGID) {
+		ri->gid = dir_i->i_gid;
+		if (S_ISDIR(mode))
+			ri->mode |= S_ISGID;
+	} else {
+		ri->gid = current->fsgid;
+	}
+	inode->i_mode = ri->mode;
+	inode->i_gid = ri->gid;
+	inode->i_uid = ri->uid;
+	inode->i_atime = inode->i_ctime = inode->i_mtime = 
+		ri->atime = ri->mtime = ri->ctime = CURRENT_TIME;
+	inode->i_blksize = PAGE_SIZE;
+	inode->i_blocks = 0;
+	inode->i_size = 0;
+
+	insert_inode_hash(inode);
+
+	return inode;
+}
+
+/* This ought to be in core MTD code. All registered MTD devices
+   without writev should have this put in place. Bug the MTD
+   maintainer */
+static int mtd_fake_writev(struct mtd_info *mtd, const struct iovec *vecs, unsigned long count, loff_t to, size_t *retlen)
+{
+	unsigned long i;
+	size_t totlen = 0, thislen;
+	int ret = 0;
+
+	for (i=0; i<count; i++) {
+		ret = mtd->write(mtd, to, vecs[i].iov_len, &thislen, vecs[i].iov_base);
+		totlen += thislen;
+		if (ret || thislen != vecs[i].iov_len)
+			break;
+		to += vecs[i].iov_len;
+	}
+	if (retlen)
+		*retlen = totlen;
+	return ret;
+}
+
+
+static inline int mtd_writev(struct mtd_info *mtd, const struct iovec *vecs, unsigned long count, loff_t to, size_t *retlen)
+{
+	if (mtd->writev)
+		return mtd->writev(mtd,vecs,count,to,retlen);
+	else
+		return mtd_fake_writev(mtd, vecs, count, to, retlen);
+}
+
+static void writecheck(struct mtd_info *mtd, __u32 ofs)
+{
+	unsigned char buf[16];
+	ssize_t retlen;
+	int ret, i;
+
+	ret = mtd->read(mtd, ofs, 16, &retlen, buf);
+	if (ret && retlen != 16) {
+		D1(printk(KERN_DEBUG "read failed or short in writecheck(). ret %d, retlen %d\n", ret, retlen));
+		return;
+	}
+	ret = 0;
+	for (i=0; i<16; i++) {
+		if (buf[i] != 0xff)
+			ret = 1;
+	}
+	if (ret) {
+		printk(KERN_WARNING "ARGH. About to write node to 0x%08x on flash, but there's data already there:\n", ofs);
+		printk(KERN_WARNING "0x%08x: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", 
+		       ofs,
+		       buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6], buf[7],
+		       buf[8], buf[9], buf[10], buf[11], buf[12], buf[13], buf[14], buf[15]);
+	}
+}
+
+	
+	
+
+/* jffs2_write_dnode - given a raw_inode, allocate a full_dnode for it, 
+   write it to the flash, link it into the existing inode/fragment list */
+
+struct jffs2_full_dnode *jffs2_write_dnode(struct inode *inode, struct jffs2_raw_inode *ri, const unsigned char *data, __u32 datalen, __u32 flash_ofs,  __u32 *writelen)
+
+{
+	struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
+	struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+	struct jffs2_raw_node_ref *raw;
+	struct jffs2_full_dnode *fn;
+	ssize_t retlen;
+	struct iovec vecs[2];
+	int ret;
+
+	D1(if(ri->hdr_crc != crc32(0, ri, sizeof(struct jffs2_unknown_node)-4)) {
+		printk(KERN_CRIT "Eep. CRC not correct in jffs2_write_dnode()\n");
+		BUG();
+	}
+	   );
+	vecs[0].iov_base = ri;
+	vecs[0].iov_len = sizeof(*ri);
+	vecs[1].iov_base = (unsigned char *)data;
+	vecs[1].iov_len = datalen;
+
+	writecheck(c->mtd, flash_ofs);
+
+	if (ri->totlen != sizeof(*ri) + datalen) {
+		printk(KERN_WARNING "jffs2_write_dnode: ri->totlen (0x%08x) != sizeof(*ri) (0x%08x) + datalen (0x%08x)\n", ri->totlen, sizeof(*ri), datalen);
+	}
+	raw = jffs2_alloc_raw_node_ref();
+	if (!raw)
+		return ERR_PTR(-ENOMEM);
+	
+	fn = jffs2_alloc_full_dnode();
+	if (!fn) {
+		jffs2_free_raw_node_ref(raw);
+		return ERR_PTR(-ENOMEM);
+	}
+	raw->flash_offset = flash_ofs;
+	raw->totlen = PAD(ri->totlen);
+	raw->next_phys = NULL;
+
+	fn->ofs = ri->offset;
+	fn->size = ri->dsize;
+	fn->frags = 0;
+	fn->raw = raw;
+
+	ret = mtd_writev(c->mtd, vecs, 2, flash_ofs, &retlen);
+	if (ret || (retlen != sizeof(*ri) + datalen)) {
+		printk(KERN_NOTICE "Write of %d bytes at 0x%08x failed. returned %d, retlen %d\n", 
+		       sizeof(*ri)+datalen, flash_ofs, ret, retlen);
+		/* Mark the space as dirtied */
+		if (retlen) {
+			/* Doesn't belong to any inode */
+			raw->next_in_ino = NULL;
+
+			/* Don't change raw->size to match retlen. We may have 
+			   written the node header already, and only the data will
+			   seem corrupted, in which case the scan would skip over
+			   any node we write before the original intended end of 
+			   this node */
+			jffs2_add_physical_node_ref(c, raw, sizeof(*ri)+datalen, 1);
+			jffs2_mark_node_obsolete(c, raw);
+		} else {
+			printk(KERN_NOTICE "Not marking the space at 0x%08x as dirty because the flash driver returned retlen zero\n", raw->flash_offset);
+			jffs2_free_raw_node_ref(raw);
+		}
+
+		/* Release the full_dnode which is now useless, and return */
+		jffs2_free_full_dnode(fn);
+		if (writelen)
+			*writelen = retlen;
+		return ERR_PTR(ret?ret:-EIO);
+	}
+	/* Mark the space used */
+	jffs2_add_physical_node_ref(c, raw, retlen, 0);
+
+	/* Link into per-inode list */
+	raw->next_in_ino = f->inocache->nodes;
+	f->inocache->nodes = raw;
+
+	D1(printk(KERN_DEBUG "jffs2_write_dnode wrote node at 0x%08x with dsize 0x%x, csize 0x%x, node_crc 0x%08x, data_crc 0x%08x, totlen 0x%08x\n", flash_ofs, ri->dsize, ri->csize, ri->node_crc, ri->data_crc, ri->totlen));
+	if (writelen)
+		*writelen = retlen;
+
+	f->inocache->nodes = raw;
+	return fn;
+}
+
+struct jffs2_full_dirent *jffs2_write_dirent(struct inode *inode, struct jffs2_raw_dirent *rd, const unsigned char *name, __u32 namelen, __u32 flash_ofs,  __u32 *writelen)
+{
+	struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
+	struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+	struct jffs2_raw_node_ref *raw;
+	struct jffs2_full_dirent *fd;
+	ssize_t retlen;
+	struct iovec vecs[2];
+	int ret;
+
+	D1(printk(KERN_DEBUG "jffs2_write_dirent(ino #%u, name at *0x%p \"%s\"->ino #%u, name_crc 0x%08x)\n", rd->pino, name, name, rd->ino, rd->name_crc));
+	writecheck(c->mtd, flash_ofs);
+
+	D1(if(rd->hdr_crc != crc32(0, rd, sizeof(struct jffs2_unknown_node)-4)) {
+		printk(KERN_CRIT "Eep. CRC not correct in jffs2_write_dirent()\n");
+		BUG();
+	}
+	   );
+
+	vecs[0].iov_base = rd;
+	vecs[0].iov_len = sizeof(*rd);
+	vecs[1].iov_base = (unsigned char *)name;
+	vecs[1].iov_len = namelen;
+	
+	raw = jffs2_alloc_raw_node_ref();
+
+	if (!raw)
+		return ERR_PTR(-ENOMEM);
+
+	fd = jffs2_alloc_full_dirent(namelen+1);
+	if (!fd) {
+		jffs2_free_raw_node_ref(raw);
+		return ERR_PTR(-ENOMEM);
+	}
+	raw->flash_offset = flash_ofs;
+	raw->totlen = PAD(rd->totlen);
+	raw->next_in_ino = f->inocache->nodes;
+	f->inocache->nodes = raw;
+	raw->next_phys = NULL;
+
+	fd->version = rd->version;
+	fd->ino = rd->ino;
+	fd->nhash = full_name_hash(name, strlen(name));
+	fd->type = rd->type;
+	memcpy(fd->name, name, namelen);
+	fd->name[namelen]=0;
+	fd->raw = raw;
+
+	ret = mtd_writev(c->mtd, vecs, 2, flash_ofs, &retlen);
+		if (ret || (retlen != sizeof(*rd) + namelen)) {
+			printk(KERN_NOTICE "Write of %d bytes at 0x%08x failed. returned %d, retlen %d\n", 
+			       sizeof(*rd)+namelen, flash_ofs, ret, retlen);
+		/* Mark the space as dirtied */
+			if (retlen) {
+				jffs2_add_physical_node_ref(c, raw, sizeof(*rd)+namelen, 1);
+				jffs2_mark_node_obsolete(c, raw);
+			} else {
+				printk(KERN_NOTICE "Not marking the space at 0x%08x as dirty because the flash driver returned retlen zero\n", raw->flash_offset);
+				jffs2_free_raw_node_ref(raw);
+			}
+
+		/* Release the full_dnode which is now useless, and return */
+		jffs2_free_full_dirent(fd);
+		if (writelen)
+			*writelen = retlen;
+		return ERR_PTR(ret?ret:-EIO);
+	}
+	/* Mark the space used */
+	jffs2_add_physical_node_ref(c, raw, retlen, 0);
+	if (writelen)
+		*writelen = retlen;
+
+	f->inocache->nodes = raw;
+	return fd;
+}
diff --git a/fs/jfs/Makefile b/fs/jfs/Makefile
new file mode 100644
index 00000000000000..af4d80e808d6b8
--- /dev/null
+++ b/fs/jfs/Makefile
@@ -0,0 +1,15 @@
+#
+# Makefile for the Linux JFS filesystem routines.
+#
+
+O_TARGET := jfs.o
+obj-y   := super.o file.o inode.o namei.o jfs_mount.o jfs_umount.o \
+	    jfs_xtree.o jfs_imap.o jfs_debug.o jfs_dmap.o \
+	    jfs_unicode.o jfs_dtree.o jfs_inode.o \
+	    jfs_extent.o symlink.o jfs_metapage.o \
+	    jfs_logmgr.o jfs_txnmgr.o jfs_uniupr.o resize.o xattr.o
+obj-m   := $(O_TARGET)
+
+EXTRA_CFLAGS += -D_JFS_4K
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/jfs/file.c b/fs/jfs/file.c
new file mode 100644
index 00000000000000..23a194f42aab25
--- /dev/null
+++ b/fs/jfs/file.c
@@ -0,0 +1,115 @@
+/*
+ *   Copyright (c) International Business Machines Corp., 2000-2002
+ *   Portions Copyright (c) Christoph Hellwig, 2001-2002
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/fs.h>
+#include "jfs_incore.h"
+#include "jfs_dmap.h"
+#include "jfs_txnmgr.h"
+#include "jfs_xattr.h"
+#include "jfs_debug.h"
+
+
+extern int jfs_commit_inode(struct inode *, int);
+extern void jfs_truncate(struct inode *);
+
+int jfs_fsync(struct file *file, struct dentry *dentry, int datasync)
+{
+	struct inode *inode = dentry->d_inode;
+	int rc = 0;
+
+	/* No need to resync the data at commit time, unless this flag gets
+	 * set again */
+	clear_cflag(COMMIT_Syncdata, inode);
+
+	rc = fsync_inode_data_buffers(inode);
+
+	if (!(inode->i_state & I_DIRTY) ||
+	    (datasync && !(inode->i_state & I_DIRTY_DATASYNC))) {
+		/* Make sure committed changes hit the disk */
+		jfs_flush_journal(JFS_SBI(inode->i_sb)->log, 1);
+		return rc;
+	}
+
+	rc |= jfs_commit_inode(inode, 1);
+
+	return rc ? -EIO : 0;
+}
+
+static int jfs_open(struct inode *inode, struct file *file)
+{
+	int rc;
+
+	if ((rc = generic_file_open(inode, file)))
+		return rc;
+
+	/*
+	 * We attempt to allow only one "active" file open per aggregate
+	 * group.  Otherwise, appending to files in parallel can cause
+	 * fragmentation within the files.
+	 *
+	 * If the file is empty, it was probably just created and going
+	 * to be written to.  If it has a size, we'll hold off until the
+	 * file is actually grown.
+	 */
+	if (S_ISREG(inode->i_mode) && file->f_mode & FMODE_WRITE &&
+	    (inode->i_size == 0)) {
+		struct jfs_inode_info *ji = JFS_IP(inode);
+		spin_lock_irq(&ji->ag_lock);
+		if (ji->active_ag == -1) {
+			ji->active_ag = ji->agno;
+			atomic_inc(
+			    &JFS_SBI(inode->i_sb)->bmap->db_active[ji->agno]);
+		}
+		spin_unlock_irq(&ji->ag_lock);
+	}
+
+	return 0;
+}
+static int jfs_release(struct inode *inode, struct file *file)
+{
+	struct jfs_inode_info *ji = JFS_IP(inode);
+
+	spin_lock_irq(&ji->ag_lock);
+	if (ji->active_ag != -1) {
+		struct bmap *bmap = JFS_SBI(inode->i_sb)->bmap;
+		atomic_dec(&bmap->db_active[ji->active_ag]);
+		ji->active_ag = -1;
+	}
+	spin_unlock_irq(&ji->ag_lock);
+
+	return 0;
+}
+
+struct inode_operations jfs_file_inode_operations = {
+	.truncate	= jfs_truncate,
+	.setxattr	= jfs_setxattr,
+	.getxattr	= jfs_getxattr,
+	.listxattr	= jfs_listxattr,
+	.removexattr	= jfs_removexattr,
+};
+
+struct file_operations jfs_file_operations = {
+	.open		= jfs_open,
+	.llseek		= generic_file_llseek,
+	.write		= generic_file_write,
+	.read		= generic_file_read,
+	.mmap		= generic_file_mmap,
+	.fsync		= jfs_fsync,
+	.release	= jfs_release,
+};
diff --git a/fs/jfs/inode.c b/fs/jfs/inode.c
new file mode 100644
index 00000000000000..871af3c78f5fae
--- /dev/null
+++ b/fs/jfs/inode.c
@@ -0,0 +1,401 @@
+/*
+ *   Copyright (c) International Business Machines Corp., 2000-2002
+ *   Portions Copyright (c) Christoph Hellwig, 2001-2002
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/fs.h>
+//#include <linux/locks.h>
+#include "jfs_incore.h"
+#include "jfs_filsys.h"
+#include "jfs_dmap.h"
+#include "jfs_imap.h"
+#include "jfs_extent.h"
+#include "jfs_unicode.h"
+#include "jfs_debug.h"
+
+
+extern struct inode_operations jfs_dir_inode_operations;
+extern struct inode_operations jfs_file_inode_operations;
+extern struct inode_operations jfs_symlink_inode_operations;
+extern struct file_operations jfs_dir_operations;
+extern struct file_operations jfs_file_operations;
+struct address_space_operations jfs_aops;
+extern int freeZeroLink(struct inode *);
+
+void jfs_clear_inode(struct inode *inode)
+{
+	struct jfs_inode_info *ji = JFS_IP(inode);
+
+	if (is_bad_inode(inode))
+		/*
+		 * We free the fs-dependent structure before making the
+		 * inode bad
+		 */
+		return;
+
+	jfs_info("jfs_clear_inode called ip = 0x%p", inode);
+
+	spin_lock_irq(&ji->ag_lock);
+	if (ji->active_ag != -1) {
+		struct bmap *bmap = JFS_SBI(inode->i_sb)->bmap;
+		atomic_dec(&bmap->db_active[ji->active_ag]);
+		ji->active_ag = -1;
+	}
+	spin_unlock_irq(&ji->ag_lock);
+
+	ASSERT(list_empty(&ji->anon_inode_list));
+
+	if (ji->atlhead) {
+		jfs_err("jfs_clear_inode: inode %p has anonymous tlocks",
+			inode);
+		jfs_err("i_state = 0x%lx, cflag = 0x%lx", inode->i_state,
+			ji->cflag);
+	}
+
+	free_jfs_inode(inode);
+}
+
+void jfs_read_inode(struct inode *inode)
+{
+	int rc;
+
+	rc = alloc_jfs_inode(inode);
+	if (rc) {
+		jfs_warn("In jfs_read_inode, alloc_jfs_inode failed");
+		goto bad_inode;
+	}
+	jfs_info("In jfs_read_inode, inode = 0x%p", inode);
+
+	if (diRead(inode))
+		goto bad_inode_free;
+
+	if (S_ISREG(inode->i_mode)) {
+		inode->i_op = &jfs_file_inode_operations;
+		inode->i_fop = &jfs_file_operations;
+		inode->i_mapping->a_ops = &jfs_aops;
+	} else if (S_ISDIR(inode->i_mode)) {
+		inode->i_op = &jfs_dir_inode_operations;
+		inode->i_fop = &jfs_dir_operations;
+	} else if (S_ISLNK(inode->i_mode)) {
+		if (inode->i_size >= IDATASIZE) {
+			inode->i_op = &page_symlink_inode_operations;
+			inode->i_mapping->a_ops = &jfs_aops;
+		} else
+			inode->i_op = &jfs_symlink_inode_operations;
+	} else {
+		inode->i_op = &jfs_file_inode_operations;
+		init_special_inode(inode, inode->i_mode,
+				   kdev_t_to_nr(inode->i_rdev));
+	}
+
+	return;
+
+      bad_inode_free:
+	free_jfs_inode(inode);
+      bad_inode:
+	make_bad_inode(inode);
+}
+
+/* This define is from fs/open.c */
+#define special_file(m) (S_ISCHR(m)||S_ISBLK(m)||S_ISFIFO(m)||S_ISSOCK(m))
+
+/*
+ * Workhorse of both fsync & write_inode
+ */
+int jfs_commit_inode(struct inode *inode, int wait)
+{
+	int rc = 0;
+	tid_t tid;
+	static int noisy = 5;
+
+	jfs_info("In jfs_commit_inode, inode = 0x%p", inode);
+
+	/*
+	 * Don't commit if inode has been committed since last being
+	 * marked dirty, or if it has been deleted.
+	 */
+	if (inode->i_nlink == 0 || !test_cflag(COMMIT_Dirty, inode))
+		return 0;
+
+	if (isReadOnly(inode)) {
+		/* kernel allows writes to devices on read-only
+		 * partitions and may think inode is dirty
+		 */
+		if (!special_file(inode->i_mode) && noisy) {
+			jfs_err("jfs_commit_inode(0x%p) called on "
+				   "read-only volume", inode);
+			jfs_err("Is remount racy?");
+			noisy--;
+		}
+		return 0;
+	}
+
+	tid = txBegin(inode->i_sb, COMMIT_INODE);
+	down(&JFS_IP(inode)->commit_sem);
+
+	/*
+	 * Retest inode state after taking commit_sem
+	 */
+	if (inode->i_nlink && test_cflag(COMMIT_Dirty, inode))
+		rc = txCommit(tid, 1, &inode, wait ? COMMIT_SYNC : 0);
+
+	txEnd(tid);
+	up(&JFS_IP(inode)->commit_sem);
+	return rc;
+}
+
+void jfs_write_inode(struct inode *inode, int wait)
+{
+	if (test_cflag(COMMIT_Nolink, inode))
+		return;
+	/*
+	 * If COMMIT_DIRTY is not set, the inode isn't really dirty.
+	 * It has been committed since the last change, but was still
+	 * on the dirty inode list.
+	 */
+	 if (!test_cflag(COMMIT_Dirty, inode)) {
+		/* Make sure committed changes hit the disk */
+		jfs_flush_journal(JFS_SBI(inode->i_sb)->log, wait);
+		return;
+	 }
+
+	if (jfs_commit_inode(inode, wait)) {
+		jfs_err("jfs_write_inode: jfs_commit_inode failed!");
+	}
+}
+
+void jfs_delete_inode(struct inode *inode)
+{
+	jfs_info("In jfs_delete_inode, inode = 0x%p", inode);
+
+	if (test_cflag(COMMIT_Freewmap, inode))
+		freeZeroLink(inode);
+
+	diFree(inode);
+
+	clear_inode(inode);
+}
+
+void jfs_dirty_inode(struct inode *inode)
+{
+	static int noisy = 5;
+
+	if (isReadOnly(inode)) {
+		if (!special_file(inode->i_mode) && noisy) {
+			/* kernel allows writes to devices on read-only
+			 * partitions and may try to mark inode dirty
+			 */
+			jfs_err("jfs_dirty_inode called on read-only volume");
+			jfs_err("Is remount racy?");
+			noisy--;
+		}
+		return;
+	}
+
+	set_cflag(COMMIT_Dirty, inode);
+}
+
+static int jfs_get_block(struct inode *ip, long lblock,
+			 struct buffer_head *bh_result, int create)
+{
+	s64 lblock64 = lblock;
+	int rc = 0;
+	int take_locks;
+	xad_t xad;
+	s64 xaddr;
+	int xflag;
+	s32 xlen;
+
+	/*
+	 * If this is a special inode (imap, dmap)
+	 * the lock should already be taken
+	 */
+	take_locks = (JFS_IP(ip)->fileset != AGGREGATE_I);
+
+	/*
+	 * Take appropriate lock on inode
+	 */
+	if (take_locks) {
+		if (create)
+			IWRITE_LOCK(ip);
+		else
+			IREAD_LOCK(ip);
+	}
+
+	if (((lblock64 << ip->i_sb->s_blocksize_bits) < ip->i_size) &&
+	    (xtLookup(ip, lblock64, 1, &xflag, &xaddr, &xlen, 0) == 0) &&
+	    xlen) {
+		if (xflag & XAD_NOTRECORDED) {
+			if (!create)
+				/*
+				 * Allocated but not recorded, read treats
+				 * this as a hole
+				 */
+				goto unlock;
+#ifdef _JFS_4K
+			XADoffset(&xad, lblock64);
+			XADlength(&xad, xlen);
+			XADaddress(&xad, xaddr);
+#else				/* _JFS_4K */
+			/*
+			 * As long as block size = 4K, this isn't a problem.
+			 * We should mark the whole page not ABNR, but how
+			 * will we know to mark the other blocks BH_New?
+			 */
+			BUG();
+#endif				/* _JFS_4K */
+			rc = extRecord(ip, &xad);
+			if (rc)
+				goto unlock;
+			bh_result->b_state |= (1UL << BH_New);
+		}
+
+		bh_result->b_dev = ip->i_dev;
+		bh_result->b_blocknr = xaddr;
+		bh_result->b_state |= (1UL << BH_Mapped);
+		goto unlock;
+	}
+	if (!create)
+		goto unlock;
+
+	/*
+	 * Allocate a new block
+	 */
+#ifdef _JFS_4K
+	if ((rc = extHint(ip, lblock64 << ip->i_sb->s_blocksize_bits, &xad)))
+		goto unlock;
+	rc = extAlloc(ip, 1, lblock64, &xad, FALSE);
+	if (rc)
+		goto unlock;
+
+	bh_result->b_dev = ip->i_dev;
+	bh_result->b_blocknr = addressXAD(&xad);
+	bh_result->b_state |= ((1UL << BH_Mapped) | (1UL << BH_New));
+
+#else				/* _JFS_4K */
+	/*
+	 * We need to do whatever it takes to keep all but the last buffers
+	 * in 4K pages - see jfs_write.c
+	 */
+	BUG();
+#endif				/* _JFS_4K */
+
+      unlock:
+	/*
+	 * Release lock on inode
+	 */
+	if (take_locks) {
+		if (create)
+			IWRITE_UNLOCK(ip);
+		else
+			IREAD_UNLOCK(ip);
+	}
+	return rc;
+}
+
+static int jfs_writepage(struct page *page)
+{
+	return block_write_full_page(page, jfs_get_block);
+}
+
+static int jfs_readpage(struct file *file, struct page *page)
+{
+	return block_read_full_page(page, jfs_get_block);
+}
+
+static int jfs_prepare_write(struct file *file,
+			     struct page *page, unsigned from, unsigned to)
+{
+	return block_prepare_write(page, from, to, jfs_get_block);
+}
+
+static int jfs_bmap(struct address_space *mapping, long block)
+{
+	return generic_block_bmap(mapping, block, jfs_get_block);
+}
+
+static int jfs_direct_IO(int rw, struct inode *inode, struct kiobuf *iobuf,
+			 unsigned long blocknr, int blocksize)
+{
+	return generic_direct_IO(rw, inode, iobuf, blocknr,
+				 blocksize, jfs_get_block);
+}
+
+struct address_space_operations jfs_aops = {
+	.readpage	= jfs_readpage,
+	.writepage	= jfs_writepage,
+	.sync_page	= block_sync_page,
+	.prepare_write	= jfs_prepare_write,
+	.commit_write	= generic_commit_write,
+	.bmap		= jfs_bmap,
+	.direct_IO	= jfs_direct_IO,
+};
+
+/*
+ * Guts of jfs_truncate.  Called with locks already held.  Can be called
+ * with directory for truncating directory index table.
+ */
+void jfs_truncate_nolock(struct inode *ip, loff_t length)
+{
+	loff_t newsize;
+	tid_t tid;
+
+	ASSERT(length >= 0);
+
+	if (test_cflag(COMMIT_Nolink, ip)) {
+		xtTruncate(0, ip, length, COMMIT_WMAP);
+		return;
+	}
+
+	do {
+		tid = txBegin(ip->i_sb, 0);
+
+		/*
+		 * The commit_sem cannot be taken before txBegin.
+		 * txBegin may block and there is a chance the inode
+		 * could be marked dirty and need to be committed
+		 * before txBegin unblocks
+		 */
+		down(&JFS_IP(ip)->commit_sem);
+
+		newsize = xtTruncate(tid, ip, length,
+				     COMMIT_TRUNCATE | COMMIT_PWMAP);
+		if (newsize < 0) {
+			txEnd(tid);
+			up(&JFS_IP(ip)->commit_sem);
+			break;
+		}
+
+		ip->i_mtime = ip->i_ctime = CURRENT_TIME;
+		mark_inode_dirty(ip);
+
+		txCommit(tid, 1, &ip, 0);
+		txEnd(tid);
+		up(&JFS_IP(ip)->commit_sem);
+	} while (newsize > length);	/* Truncate isn't always atomic */
+}
+
+void jfs_truncate(struct inode *ip)
+{
+	jfs_info("jfs_truncate: size = 0x%lx", (ulong) ip->i_size);
+
+	block_truncate_page(ip->i_mapping, ip->i_size, jfs_get_block);
+
+	IWRITE_LOCK(ip);
+	jfs_truncate_nolock(ip, ip->i_size);
+	IWRITE_UNLOCK(ip);
+}
diff --git a/fs/jfs/jfs_btree.h b/fs/jfs/jfs_btree.h
new file mode 100644
index 00000000000000..7f3e9ac454fff1
--- /dev/null
+++ b/fs/jfs/jfs_btree.h
@@ -0,0 +1,172 @@
+/*
+ *   Copyright (C) International Business Machines Corp., 2000-2004
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef	_H_JFS_BTREE
+#define _H_JFS_BTREE
+
+/*
+ *	jfs_btree.h: B+-tree
+ *
+ * JFS B+-tree (dtree and xtree) common definitions
+ */
+
+/*
+ *	basic btree page - btpage
+ *
+struct btpage {
+	s64 next;		right sibling bn
+	s64 prev;		left sibling bn
+
+	u8 flag;
+	u8 rsrvd[7];		type specific
+	s64 self;		self address
+
+	u8 entry[4064];
+};						*/
+
+/* btpaget_t flag */
+#define BT_TYPE		0x07	/* B+-tree index */
+#define	BT_ROOT		0x01	/* root page */
+#define	BT_LEAF		0x02	/* leaf page */
+#define	BT_INTERNAL	0x04	/* internal page */
+#define	BT_RIGHTMOST	0x10	/* rightmost page */
+#define	BT_LEFTMOST	0x20	/* leftmost page */
+#define	BT_SWAPPED	0x80	/* used by fsck for endian swapping */
+
+/* btorder (in inode) */
+#define	BT_RANDOM		0x0000
+#define	BT_SEQUENTIAL		0x0001
+#define	BT_LOOKUP		0x0010
+#define	BT_INSERT		0x0020
+#define	BT_DELETE		0x0040
+
+/*
+ *	btree page buffer cache access
+ */
+#define BT_IS_ROOT(MP) (((MP)->xflag & COMMIT_PAGE) == 0)
+
+/* get page from buffer page */
+#define BT_PAGE(IP, MP, TYPE, ROOT)\
+	(BT_IS_ROOT(MP) ? (TYPE *)&JFS_IP(IP)->ROOT : (TYPE *)(MP)->data)
+
+/* get the page buffer and the page for specified block address */
+#define BT_GETPAGE(IP, BN, MP, TYPE, SIZE, P, RC, ROOT)\
+{\
+	if ((BN) == 0)\
+	{\
+		MP = (struct metapage *)&JFS_IP(IP)->bxflag;\
+		P = (TYPE *)&JFS_IP(IP)->ROOT;\
+		RC = 0;\
+	}\
+	else\
+	{\
+		MP = read_metapage((IP), BN, SIZE, 1);\
+		if (MP) {\
+			RC = 0;\
+			P = (MP)->data;\
+		} else {\
+			P = NULL;\
+			jfs_err("bread failed!");\
+			RC = -EIO;\
+		}\
+	}\
+}
+
+#define BT_MARK_DIRTY(MP, IP)\
+{\
+	if (BT_IS_ROOT(MP))\
+		mark_inode_dirty(IP);\
+	else\
+		mark_metapage_dirty(MP);\
+}
+
+/* put the page buffer */
+#define BT_PUTPAGE(MP)\
+{\
+	if (! BT_IS_ROOT(MP)) \
+		release_metapage(MP); \
+}
+
+
+/*
+ *	btree traversal stack
+ *
+ * record the path traversed during the search;
+ * top frame record the leaf page/entry selected.
+ */
+struct btframe {	/* stack frame */
+	s64 bn;			/* 8: */
+	s16 index;		/* 2: */
+	s16 lastindex;		/* 2: unused */
+	struct metapage *mp;	/* 4/8: */
+};				/* (16/24) */
+
+struct btstack {
+	struct btframe *top;
+	int nsplit;
+	struct btframe stack[MAXTREEHEIGHT];
+};
+
+#define BT_CLR(btstack)\
+	(btstack)->top = (btstack)->stack
+
+#define BT_STACK_FULL(btstack)\
+	( (btstack)->top == &((btstack)->stack[MAXTREEHEIGHT-1]))
+
+#define BT_PUSH(BTSTACK, BN, INDEX)\
+{\
+	assert(!BT_STACK_FULL(BTSTACK));\
+	(BTSTACK)->top->bn = BN;\
+	(BTSTACK)->top->index = INDEX;\
+	++(BTSTACK)->top;\
+}
+
+#define BT_POP(btstack)\
+	( (btstack)->top == (btstack)->stack ? NULL : --(btstack)->top )
+
+#define BT_STACK(btstack)\
+	( (btstack)->top == (btstack)->stack ? NULL : (btstack)->top )
+
+static inline void BT_STACK_DUMP(struct btstack *btstack)
+{
+	int i;
+	printk("btstack dump:\n");
+	for (i = 0; i < MAXTREEHEIGHT; i++)
+		printk(KERN_ERR "bn = %Lx, index = %d\n",
+		       (long long)btstack->stack[i].bn,
+		       btstack->stack[i].index);
+}
+
+/* retrieve search results */
+#define BT_GETSEARCH(IP, LEAF, BN, MP, TYPE, P, INDEX, ROOT)\
+{\
+	BN = (LEAF)->bn;\
+	MP = (LEAF)->mp;\
+	if (BN)\
+		P = (TYPE *)MP->data;\
+	else\
+		P = (TYPE *)&JFS_IP(IP)->ROOT;\
+	INDEX = (LEAF)->index;\
+}
+
+/* put the page buffer of search */
+#define BT_PUTSEARCH(BTSTACK)\
+{\
+	if (! BT_IS_ROOT((BTSTACK)->top->mp))\
+		release_metapage((BTSTACK)->top->mp);\
+}
+#endif				/* _H_JFS_BTREE */
diff --git a/fs/jfs/jfs_debug.c b/fs/jfs/jfs_debug.c
new file mode 100644
index 00000000000000..83e6bc03da8add
--- /dev/null
+++ b/fs/jfs/jfs_debug.c
@@ -0,0 +1,154 @@
+/*
+ *   Copyright (C) International Business Machines Corp., 2000-2004
+ *   Portions Copyright (C) Christoph Hellwig, 2001-2002
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/fs.h>
+#include <linux/ctype.h>
+#include <linux/module.h>
+#include <linux/proc_fs.h>
+#include <asm/uaccess.h>
+#include "jfs_incore.h"
+#include "jfs_filsys.h"
+#include "jfs_debug.h"
+
+#ifdef CONFIG_JFS_DEBUG
+void dump_mem(char *label, void *data, int length)
+{
+	int i, j;
+	int *intptr = data;
+	char *charptr = data;
+	char buf[10], line[80];
+
+	printk("%s: dump of %d bytes of data at 0x%p\n\n", label, length,
+	       data);
+	for (i = 0; i < length; i += 16) {
+		line[0] = 0;
+		for (j = 0; (j < 4) && (i + j * 4 < length); j++) {
+			sprintf(buf, " %08x", intptr[i / 4 + j]);
+			strcat(line, buf);
+		}
+		buf[0] = ' ';
+		buf[2] = 0;
+		for (j = 0; (j < 16) && (i + j < length); j++) {
+			buf[1] =
+			    isprint(charptr[i + j]) ? charptr[i + j] : '.';
+			strcat(line, buf);
+		}
+		printk("%s\n", line);
+	}
+}
+#endif
+
+#ifdef PROC_FS_JFS /* see jfs_debug.h */
+
+static struct proc_dir_entry *base;
+#ifdef CONFIG_JFS_DEBUG
+extern read_proc_t jfs_txanchor_read;
+
+static int loglevel_read(char *page, char **start, off_t off,
+			 int count, int *eof, void *data)
+{
+	int len;
+
+	len = sprintf(page, "%d\n", jfsloglevel);
+
+	len -= off;
+	*start = page + off;
+
+	if (len > count)
+		len = count;
+	else
+		*eof = 1;
+
+	if (len < 0)
+		len = 0;
+
+	return len;
+}
+
+static int loglevel_write(struct file *file, const char *buffer,
+			unsigned long count, void *data)
+{
+	char c;
+
+	if (get_user(c, buffer))
+		return -EFAULT;
+
+	/* yes, I know this is an ASCIIism.  --hch */
+	if (c < '0' || c > '9')
+		return -EINVAL;
+	jfsloglevel = c - '0';
+	return count;
+}
+#endif
+
+
+#ifdef CONFIG_JFS_STATISTICS
+extern read_proc_t jfs_lmstats_read;
+extern read_proc_t jfs_txstats_read;
+extern read_proc_t jfs_xtstat_read;
+extern read_proc_t jfs_mpstat_read;
+#endif
+
+static struct {
+	const char	*name;
+	read_proc_t	*read_fn;
+	write_proc_t	*write_fn;
+} Entries[] = {
+#ifdef CONFIG_JFS_STATISTICS
+	{ "lmstats",	jfs_lmstats_read, },
+	{ "txstats",	jfs_txstats_read, },
+	{ "xtstat",	jfs_xtstat_read, },
+	{ "mpstat",	jfs_mpstat_read, },
+#endif
+#ifdef CONFIG_JFS_DEBUG
+	{ "TxAnchor",	jfs_txanchor_read, },
+	{ "loglevel",	loglevel_read, loglevel_write }
+#endif
+};
+#define NPROCENT	(sizeof(Entries)/sizeof(Entries[0]))
+
+void jfs_proc_init(void)
+{
+	int i;
+
+	if (!(base = proc_mkdir("jfs", proc_root_fs)))
+		return;
+	base->owner = THIS_MODULE;
+
+	for (i = 0; i < NPROCENT; i++) {
+		struct proc_dir_entry *p;
+		if ((p = create_proc_entry(Entries[i].name, 0, base))) {
+			p->read_proc = Entries[i].read_fn;
+			p->write_proc = Entries[i].write_fn;
+		}
+	}
+}
+
+void jfs_proc_clean(void)
+{
+	int i;
+
+	if (base) {
+		for (i = 0; i < NPROCENT; i++)
+			remove_proc_entry(Entries[i].name, base);
+		remove_proc_entry("jfs", proc_root_fs);
+	}
+}
+
+#endif /* PROC_FS_JFS */
diff --git a/fs/jfs/jfs_debug.h b/fs/jfs/jfs_debug.h
new file mode 100644
index 00000000000000..a38079ae1e005f
--- /dev/null
+++ b/fs/jfs/jfs_debug.h
@@ -0,0 +1,122 @@
+/*
+ *   Copyright (c) International Business Machines Corp., 2000-2002
+ *   Portions Copyright (c) Christoph Hellwig, 2001-2002
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef _H_JFS_DEBUG
+#define _H_JFS_DEBUG
+
+/*
+ *	jfs_debug.h
+ *
+ * global debug message, data structure/macro definitions
+ * under control of CONFIG_JFS_DEBUG, CONFIG_JFS_STATISTICS;
+ */
+
+/*
+ * Create /proc/fs/jfs if procfs is enabled andeither
+ * CONFIG_JFS_DEBUG or CONFIG_JFS_STATISTICS is defined
+ */
+#if defined(CONFIG_PROC_FS) && (defined(CONFIG_JFS_DEBUG) || defined(CONFIG_JFS_STATISTICS))
+	#define PROC_FS_JFS
+#endif
+
+/*
+ *	assert with traditional printf/panic
+ */
+#ifdef CONFIG_KERNEL_ASSERTS
+/* kgdb stuff */
+#define assert(p) KERNEL_ASSERT(#p, p)
+#else
+#define assert(p) do {	\
+	if (!(p)) {	\
+		printk(KERN_CRIT "BUG at %s:%d assert(%s)\n",	\
+		       __FILE__, __LINE__, #p);			\
+		BUG();	\
+	}		\
+} while (0)
+#endif
+
+/*
+ *	debug ON
+ *	--------
+ */
+#ifdef CONFIG_JFS_DEBUG
+#define ASSERT(p) assert(p)
+
+/* printk verbosity */
+#define JFS_LOGLEVEL_ERR 1
+#define JFS_LOGLEVEL_WARN 2
+#define JFS_LOGLEVEL_DEBUG 3
+#define JFS_LOGLEVEL_INFO 4
+
+extern int jfsloglevel;
+
+/* dump memory contents */
+extern void dump_mem(char *label, void *data, int length);
+
+/* information message: e.g., configuration, major event */
+#define jfs_info(fmt, arg...) do {			\
+	if (jfsloglevel >= JFS_LOGLEVEL_INFO)		\
+		printk(KERN_INFO fmt "\n", ## arg);	\
+} while (0)
+
+/* debug message: ad hoc */
+#define jfs_debug(fmt, arg...) do {			\
+	if (jfsloglevel >= JFS_LOGLEVEL_DEBUG)		\
+		printk(KERN_DEBUG fmt "\n", ## arg);	\
+} while (0)
+
+/* warn message: */
+#define jfs_warn(fmt, arg...) do {			\
+	if (jfsloglevel >= JFS_LOGLEVEL_WARN)		\
+		printk(KERN_WARNING fmt "\n", ## arg);	\
+} while (0)
+
+/* error event message: e.g., i/o error */
+#define jfs_err(fmt, arg...) do {			\
+	if (jfsloglevel >= JFS_LOGLEVEL_ERR)		\
+		printk(KERN_ERR fmt "\n", ## arg);	\
+} while (0)
+
+/*
+ *	debug OFF
+ *	---------
+ */
+#else				/* CONFIG_JFS_DEBUG */
+#define dump_mem(label,data,length) do {} while (0)
+#define ASSERT(p) do {} while (0)
+#define jfs_info(fmt, arg...) do {} while (0)
+#define jfs_debug(fmt, arg...) do {} while (0)
+#define jfs_warn(fmt, arg...) do {} while (0)
+#define jfs_err(fmt, arg...) do {} while (0)
+#endif				/* CONFIG_JFS_DEBUG */
+
+/*
+ *	statistics
+ *	----------
+ */
+#ifdef	CONFIG_JFS_STATISTICS
+#define	INCREMENT(x)		((x)++)
+#define	DECREMENT(x)		((x)--)
+#define	HIGHWATERMARK(x,y)	((x) = max((x), (y)))
+#else
+#define	INCREMENT(x)
+#define	DECREMENT(x)
+#define	HIGHWATERMARK(x,y)
+#endif				/* CONFIG_JFS_STATISTICS */
+
+#endif				/* _H_JFS_DEBUG */
diff --git a/fs/jfs/jfs_dinode.h b/fs/jfs/jfs_dinode.h
new file mode 100644
index 00000000000000..b3388dfa4fb19d
--- /dev/null
+++ b/fs/jfs/jfs_dinode.h
@@ -0,0 +1,151 @@
+/*
+ *   Copyright (c) International Business Machines Corp., 2000-2001
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef _H_JFS_DINODE
+#define _H_JFS_DINODE
+
+/*
+ *      jfs_dinode.h: on-disk inode manager
+ */
+
+#define INODESLOTSIZE           128
+#define L2INODESLOTSIZE         7
+#define log2INODESIZE           9	/* log2(bytes per dinode) */
+
+
+/*
+ *      on-disk inode : 512 bytes
+ *
+ * note: align 64-bit fields on 8-byte boundary.
+ */
+struct dinode {
+	/*
+	 *      I. base area (128 bytes)
+	 *      ------------------------
+	 *
+	 * define generic/POSIX attributes
+	 */
+	u32 di_inostamp;	/* 4: stamp to show inode belongs to fileset */
+	s32 di_fileset;		/* 4: fileset number */
+	u32 di_number;		/* 4: inode number, aka file serial number */
+	u32 di_gen;		/* 4: inode generation number */
+
+	pxd_t di_ixpxd;		/* 8: inode extent descriptor */
+
+	s64 di_size;		/* 8: size */
+	s64 di_nblocks;		/* 8: number of blocks allocated */
+
+	u32 di_nlink;		/* 4: number of links to the object */
+
+	u32 di_uid;		/* 4: user id of owner */
+	u32 di_gid;		/* 4: group id of owner */
+
+	u32 di_mode;		/* 4: attribute, format and permission */
+
+	struct timestruc_t di_atime;	/* 8: time last data accessed */
+	struct timestruc_t di_ctime;	/* 8: time last status changed */
+	struct timestruc_t di_mtime;	/* 8: time last data modified */
+	struct timestruc_t di_otime;	/* 8: time created */
+
+	dxd_t di_acl;		/* 16: acl descriptor */
+
+	dxd_t di_ea;		/* 16: ea descriptor */
+
+	u32 di_next_index;	/* 4: Next available dir_table index */
+
+	s32 di_acltype;		/* 4: Type of ACL */
+
+	/*
+	 *      Extension Areas.
+	 *
+	 *      Historically, the inode was partitioned into 4 128-byte areas,
+	 *      the last 3 being defined as unions which could have multiple
+	 *      uses.  The first 96 bytes had been completely unused until
+	 *      an index table was added to the directory.  It is now more
+	 *      useful to describe the last 3/4 of the inode as a single
+	 *      union.  We would probably be better off redesigning the
+	 *      entire structure from scratch, but we don't want to break
+	 *      commonality with OS/2's JFS at this time.
+	 */
+	union {
+		struct {
+			/*
+			 * This table contains the information needed to
+			 * find a directory entry from a 32-bit index.
+			 * If the index is small enough, the table is inline,
+			 * otherwise, an x-tree root overlays this table
+			 */
+			struct dir_table_slot _table[12]; /* 96: inline */
+
+			dtroot_t _dtroot;		/* 288: dtree root */
+		} _dir;					/* (384) */
+#define di_dirtable	u._dir._table
+#define di_dtroot	u._dir._dtroot
+#define di_parent       di_dtroot.header.idotdot
+#define di_DASD		di_dtroot.header.DASD
+
+		struct {
+			union {
+				u8 _data[96];		/* 96: unused */
+				struct {
+					void *_imap;	/* 4: unused */
+					u32 _gengen;	/* 4: generator */
+				} _imap;
+			} _u1;				/* 96: */
+#define di_gengen	u._file._u1._imap._gengen
+
+			union {
+				xtpage_t _xtroot;
+				struct {
+					u8 unused[16];	/* 16: */
+					dxd_t _dxd;	/* 16: */
+					union {
+						u32 _rdev;	/* 4: */
+						u8 _fastsymlink[128];
+					} _u;
+					u8 _inlineea[128];
+				} _special;
+			} _u2;
+		} _file;
+#define di_xtroot	u._file._u2._xtroot
+#define di_dxd		u._file._u2._special._dxd
+#define di_btroot	di_xtroot
+#define di_inlinedata	u._file._u2._special._u
+#define di_rdev		u._file._u2._special._u._rdev
+#define di_fastsymlink	u._file._u2._special._u._fastsymlink
+#define di_inlineea     u._file._u2._special._inlineea
+	} u;
+};
+
+/* extended mode bits (on-disk inode di_mode) */
+#define IFJOURNAL       0x00010000	/* journalled file */
+#define ISPARSE         0x00020000	/* sparse file enabled */
+#define INLINEEA        0x00040000	/* inline EA area free */
+#define ISWAPFILE	0x00800000	/* file open for pager swap space */
+
+/* more extended mode bits: attributes for OS/2 */
+#define IREADONLY	0x02000000	/* no write access to file */
+#define IARCHIVE	0x40000000	/* file archive bit */
+#define ISYSTEM		0x08000000	/* system file */
+#define IHIDDEN		0x04000000	/* hidden file */
+#define IRASH		0x4E000000	/* mask for changeable attributes */
+#define INEWNAME	0x80000000	/* non-8.3 filename format */
+#define IDIRECTORY	0x20000000	/* directory (shadow of real bit) */
+#define ATTRSHIFT	25	/* bits to shift to move attribute
+				   specification to mode position */
+
+#endif /*_H_JFS_DINODE */
diff --git a/fs/jfs/jfs_dmap.c b/fs/jfs/jfs_dmap.c
new file mode 100644
index 00000000000000..46f0cf2d50423e
--- /dev/null
+++ b/fs/jfs/jfs_dmap.c
@@ -0,0 +1,4273 @@
+/*
+ *   Copyright (C) International Business Machines Corp., 2000-2004
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/fs.h>
+#include "jfs_incore.h"
+#include "jfs_superblock.h"
+#include "jfs_dmap.h"
+#include "jfs_imap.h"
+#include "jfs_lock.h"
+#include "jfs_metapage.h"
+#include "jfs_superblock.h"
+#include "jfs_debug.h"
+
+/*
+ *	Debug code for double-checking block map
+ */
+/* #define	_JFS_DEBUG_DMAP	1 */
+
+#ifdef	_JFS_DEBUG_DMAP
+#define DBINITMAP(size,ipbmap,results) \
+	DBinitmap(size,ipbmap,results)
+#define DBALLOC(dbmap,mapsize,blkno,nblocks) \
+	DBAlloc(dbmap,mapsize,blkno,nblocks)
+#define DBFREE(dbmap,mapsize,blkno,nblocks) \
+	DBFree(dbmap,mapsize,blkno,nblocks)
+#define DBALLOCCK(dbmap,mapsize,blkno,nblocks) \
+	DBAllocCK(dbmap,mapsize,blkno,nblocks)
+#define DBFREECK(dbmap,mapsize,blkno,nblocks) \
+	DBFreeCK(dbmap,mapsize,blkno,nblocks)
+
+static void DBinitmap(s64, struct inode *, u32 **);
+static void DBAlloc(uint *, s64, s64, s64);
+static void DBFree(uint *, s64, s64, s64);
+static void DBAllocCK(uint *, s64, s64, s64);
+static void DBFreeCK(uint *, s64, s64, s64);
+#else
+#define DBINITMAP(size,ipbmap,results)
+#define DBALLOC(dbmap, mapsize, blkno, nblocks)
+#define DBFREE(dbmap, mapsize, blkno, nblocks)
+#define DBALLOCCK(dbmap, mapsize, blkno, nblocks)
+#define DBFREECK(dbmap, mapsize, blkno, nblocks)
+#endif				/* _JFS_DEBUG_DMAP */
+
+/*
+ *	SERIALIZATION of the Block Allocation Map.
+ *
+ *	the working state of the block allocation map is accessed in
+ *	two directions:
+ *	
+ *	1) allocation and free requests that start at the dmap
+ *	   level and move up through the dmap control pages (i.e.
+ *	   the vast majority of requests).
+ * 
+ * 	2) allocation requests that start at dmap control page
+ *	   level and work down towards the dmaps.
+ *	
+ *	the serialization scheme used here is as follows. 
+ *
+ *	requests which start at the bottom are serialized against each 
+ *	other through buffers and each requests holds onto its buffers 
+ *	as it works it way up from a single dmap to the required level 
+ *	of dmap control page.
+ *	requests that start at the top are serialized against each other
+ *	and request that start from the bottom by the multiple read/single
+ *	write inode lock of the bmap inode. requests starting at the top
+ *	take this lock in write mode while request starting at the bottom
+ *	take the lock in read mode.  a single top-down request may proceed
+ *	exclusively while multiple bottoms-up requests may proceed 
+ * 	simultaneously (under the protection of busy buffers).
+ *	
+ *	in addition to information found in dmaps and dmap control pages,
+ *	the working state of the block allocation map also includes read/
+ *	write information maintained in the bmap descriptor (i.e. total
+ *	free block count, allocation group level free block counts).
+ *	a single exclusive lock (BMAP_LOCK) is used to guard this information
+ *	in the face of multiple-bottoms up requests.
+ *	(lock ordering: IREAD_LOCK, BMAP_LOCK);
+ *	
+ *	accesses to the persistent state of the block allocation map (limited
+ *	to the persistent bitmaps in dmaps) is guarded by (busy) buffers.
+ */
+
+#define BMAP_LOCK_INIT(bmp)	init_MUTEX(&bmp->db_bmaplock)
+#define BMAP_LOCK(bmp)		down(&bmp->db_bmaplock)
+#define BMAP_UNLOCK(bmp)	up(&bmp->db_bmaplock)
+
+/*
+ * forward references
+ */
+static void dbAllocBits(struct bmap * bmp, struct dmap * dp, s64 blkno,
+			int nblocks);
+static void dbSplit(dmtree_t * tp, int leafno, int splitsz, int newval);
+static void dbBackSplit(dmtree_t * tp, int leafno);
+static void dbJoin(dmtree_t * tp, int leafno, int newval);
+static void dbAdjTree(dmtree_t * tp, int leafno, int newval);
+static int dbAdjCtl(struct bmap * bmp, s64 blkno, int newval, int alloc,
+		    int level);
+static int dbAllocAny(struct bmap * bmp, s64 nblocks, int l2nb, s64 * results);
+static int dbAllocNext(struct bmap * bmp, struct dmap * dp, s64 blkno,
+		       int nblocks);
+static int dbAllocNear(struct bmap * bmp, struct dmap * dp, s64 blkno,
+		       int nblocks,
+		       int l2nb, s64 * results);
+static int dbAllocDmap(struct bmap * bmp, struct dmap * dp, s64 blkno,
+		       int nblocks);
+static int dbAllocDmapLev(struct bmap * bmp, struct dmap * dp, int nblocks,
+			  int l2nb,
+			  s64 * results);
+static int dbAllocAG(struct bmap * bmp, int agno, s64 nblocks, int l2nb,
+		     s64 * results);
+static int dbAllocCtl(struct bmap * bmp, s64 nblocks, int l2nb, s64 blkno,
+		      s64 * results);
+static int dbExtend(struct inode *ip, s64 blkno, s64 nblocks, s64 addnblocks);
+static int dbFindBits(u32 word, int l2nb);
+static int dbFindCtl(struct bmap * bmp, int l2nb, int level, s64 * blkno);
+static int dbFindLeaf(dmtree_t * tp, int l2nb, int *leafidx);
+static void dbFreeBits(struct bmap * bmp, struct dmap * dp, s64 blkno,
+		       int nblocks);
+static int dbFreeDmap(struct bmap * bmp, struct dmap * dp, s64 blkno,
+		      int nblocks);
+static int dbMaxBud(u8 * cp);
+s64 dbMapFileSizeToMapSize(struct inode *ipbmap);
+static int blkstol2(s64 nb);
+
+static int cntlz(u32 value);
+static int cnttz(u32 word);
+
+static int dbAllocDmapBU(struct bmap * bmp, struct dmap * dp, s64 blkno,
+			 int nblocks);
+static int dbInitDmap(struct dmap * dp, s64 blkno, int nblocks);
+static int dbInitDmapTree(struct dmap * dp);
+static int dbInitTree(struct dmaptree * dtp);
+static int dbInitDmapCtl(struct dmapctl * dcp, int level, int i);
+static int dbGetL2AGSize(s64 nblocks);
+
+/*
+ *	buddy table
+ *
+ * table used for determining buddy sizes within characters of 
+ * dmap bitmap words.  the characters themselves serve as indexes
+ * into the table, with the table elements yielding the maximum
+ * binary buddy of free bits within the character.
+ */
+static s8 budtab[256] = {
+	3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+	2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	2, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0,
+	2, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0,
+	2, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0,
+	2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	2, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0,
+	2, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0,
+	2, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0,
+	2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	2, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0,
+	2, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0,
+	2, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, -1
+};
+
+
+/*
+ * NAME:    	dbMount()
+ *
+ * FUNCTION:	initializate the block allocation map.
+ *
+ *		memory is allocated for the in-core bmap descriptor and
+ *		the in-core descriptor is initialized from disk.
+ *
+ * PARAMETERS:
+ *      ipbmap	-  pointer to in-core inode for the block map.
+ *
+ * RETURN VALUES:
+ *      0	- success
+ *      -ENOMEM	- insufficient memory
+ *      -EIO	- i/o error
+ */
+int dbMount(struct inode *ipbmap)
+{
+	struct bmap *bmp;
+	struct dbmap *dbmp_le;
+	struct metapage *mp;
+	int i;
+
+	/*
+	 * allocate/initialize the in-memory bmap descriptor
+	 */
+	/* allocate memory for the in-memory bmap descriptor */
+	bmp = kmalloc(sizeof(struct bmap), GFP_KERNEL);
+	if (bmp == NULL)
+		return -ENOMEM;
+
+	/* read the on-disk bmap descriptor. */
+	mp = read_metapage(ipbmap,
+			   BMAPBLKNO << JFS_SBI(ipbmap->i_sb)->l2nbperpage,
+			   PSIZE, 0);
+	if (mp == NULL) {
+		kfree(bmp);
+		return -EIO;
+	}
+
+	/* copy the on-disk bmap descriptor to its in-memory version. */
+	dbmp_le = (struct dbmap *) mp->data;
+	bmp->db_mapsize = le64_to_cpu(dbmp_le->dn_mapsize);
+	bmp->db_nfree = le64_to_cpu(dbmp_le->dn_nfree);
+	bmp->db_l2nbperpage = le32_to_cpu(dbmp_le->dn_l2nbperpage);
+	bmp->db_numag = le32_to_cpu(dbmp_le->dn_numag);
+	bmp->db_maxlevel = le32_to_cpu(dbmp_le->dn_maxlevel);
+	bmp->db_maxag = le32_to_cpu(dbmp_le->dn_maxag);
+	bmp->db_agpref = le32_to_cpu(dbmp_le->dn_agpref);
+	bmp->db_aglevel = le32_to_cpu(dbmp_le->dn_aglevel);
+	bmp->db_agheigth = le32_to_cpu(dbmp_le->dn_agheigth);
+	bmp->db_agwidth = le32_to_cpu(dbmp_le->dn_agwidth);
+	bmp->db_agstart = le32_to_cpu(dbmp_le->dn_agstart);
+	bmp->db_agl2size = le32_to_cpu(dbmp_le->dn_agl2size);
+	for (i = 0; i < MAXAG; i++)
+		bmp->db_agfree[i] = le64_to_cpu(dbmp_le->dn_agfree[i]);
+	bmp->db_agsize = le64_to_cpu(dbmp_le->dn_agsize);
+	bmp->db_maxfreebud = dbmp_le->dn_maxfreebud;
+
+	/* release the buffer. */
+	release_metapage(mp);
+
+	/* bind the bmap inode and the bmap descriptor to each other. */
+	bmp->db_ipbmap = ipbmap;
+	JFS_SBI(ipbmap->i_sb)->bmap = bmp;
+
+	memset(bmp->db_active, 0, sizeof(bmp->db_active));
+	DBINITMAP(bmp->db_mapsize, ipbmap, &bmp->db_DBmap);
+
+	/*
+	 * allocate/initialize the bmap lock
+	 */
+	BMAP_LOCK_INIT(bmp);
+
+	return (0);
+}
+
+
+/*
+ * NAME:    	dbUnmount()
+ *
+ * FUNCTION:	terminate the block allocation map in preparation for
+ *		file system unmount.
+ *
+ * 		the in-core bmap descriptor is written to disk and
+ *		the memory for this descriptor is freed.
+ *
+ * PARAMETERS:
+ *      ipbmap	-  pointer to in-core inode for the block map.
+ *
+ * RETURN VALUES:
+ *      0	- success
+ *      -EIO	- i/o error
+ */
+int dbUnmount(struct inode *ipbmap, int mounterror)
+{
+	struct bmap *bmp = JFS_SBI(ipbmap->i_sb)->bmap;
+	int i;
+
+	if (!(mounterror || isReadOnly(ipbmap)))
+		dbSync(ipbmap);
+
+	/*
+	 * Invalidate the page cache buffers
+	 */
+	truncate_inode_pages(ipbmap->i_mapping, 0);
+
+	/*
+	 * Sanity Check
+	 */
+	for (i = 0; i < bmp->db_numag; i++)
+		if (atomic_read(&bmp->db_active[i]))
+			printk(KERN_ERR "dbUnmount: db_active[%d] = %d\n",
+			       i, atomic_read(&bmp->db_active[i]));
+
+	/* free the memory for the in-memory bmap. */
+	kfree(bmp);
+
+	return (0);
+}
+
+/*
+ *	dbSync()
+ */
+int dbSync(struct inode *ipbmap)
+{
+	struct dbmap *dbmp_le;
+	struct bmap *bmp = JFS_SBI(ipbmap->i_sb)->bmap;
+	struct metapage *mp;
+	int i;
+
+	/*
+	 * write bmap global control page
+	 */
+	/* get the buffer for the on-disk bmap descriptor. */
+	mp = read_metapage(ipbmap,
+			   BMAPBLKNO << JFS_SBI(ipbmap->i_sb)->l2nbperpage,
+			   PSIZE, 0);
+	if (mp == NULL) {
+		jfs_err("dbSync: read_metapage failed!");
+		return -EIO;
+	}
+	/* copy the in-memory version of the bmap to the on-disk version */
+	dbmp_le = (struct dbmap *) mp->data;
+	dbmp_le->dn_mapsize = cpu_to_le64(bmp->db_mapsize);
+	dbmp_le->dn_nfree = cpu_to_le64(bmp->db_nfree);
+	dbmp_le->dn_l2nbperpage = cpu_to_le32(bmp->db_l2nbperpage);
+	dbmp_le->dn_numag = cpu_to_le32(bmp->db_numag);
+	dbmp_le->dn_maxlevel = cpu_to_le32(bmp->db_maxlevel);
+	dbmp_le->dn_maxag = cpu_to_le32(bmp->db_maxag);
+	dbmp_le->dn_agpref = cpu_to_le32(bmp->db_agpref);
+	dbmp_le->dn_aglevel = cpu_to_le32(bmp->db_aglevel);
+	dbmp_le->dn_agheigth = cpu_to_le32(bmp->db_agheigth);
+	dbmp_le->dn_agwidth = cpu_to_le32(bmp->db_agwidth);
+	dbmp_le->dn_agstart = cpu_to_le32(bmp->db_agstart);
+	dbmp_le->dn_agl2size = cpu_to_le32(bmp->db_agl2size);
+	for (i = 0; i < MAXAG; i++)
+		dbmp_le->dn_agfree[i] = cpu_to_le64(bmp->db_agfree[i]);
+	dbmp_le->dn_agsize = cpu_to_le64(bmp->db_agsize);
+	dbmp_le->dn_maxfreebud = bmp->db_maxfreebud;
+
+	/* write the buffer */
+	write_metapage(mp);
+
+	/*
+	 * write out dirty pages of bmap
+	 */
+	fsync_inode_data_buffers(ipbmap);
+
+	ipbmap->i_state |= I_DIRTY;
+	diWriteSpecial(ipbmap, 0);
+
+	return (0);
+}
+
+
+/*
+ * NAME:    	dbFree()
+ *
+ * FUNCTION:	free the specified block range from the working block
+ *		allocation map.
+ *
+ *		the blocks will be free from the working map one dmap
+ *		at a time.
+ *
+ * PARAMETERS:
+ *      ip	-  pointer to in-core inode;
+ *      blkno	-  starting block number to be freed.
+ *      nblocks	-  number of blocks to be freed.
+ *
+ * RETURN VALUES:
+ *      0	- success
+ *      -EIO	- i/o error
+ */
+int dbFree(struct inode *ip, s64 blkno, s64 nblocks)
+{
+	struct metapage *mp;
+	struct dmap *dp;
+	int nb, rc;
+	s64 lblkno, rem;
+	struct inode *ipbmap = JFS_SBI(ip->i_sb)->ipbmap;
+	struct bmap *bmp = JFS_SBI(ip->i_sb)->bmap;
+
+	IREAD_LOCK(ipbmap);
+
+	/* block to be freed better be within the mapsize. */
+	if (unlikely((blkno == 0) || (blkno + nblocks > bmp->db_mapsize))) {
+		IREAD_UNLOCK(ipbmap);
+		printk(KERN_ERR "blkno = %Lx, nblocks = %Lx\n",
+		       (unsigned long long) blkno,
+		       (unsigned long long) nblocks);
+		jfs_error(ip->i_sb,
+			  "dbFree: block to be freed is outside the map");
+		return -EIO;
+	}
+
+	/*
+	 * free the blocks a dmap at a time.
+	 */
+	mp = NULL;
+	for (rem = nblocks; rem > 0; rem -= nb, blkno += nb) {
+		/* release previous dmap if any */
+		if (mp) {
+			write_metapage(mp);
+		}
+
+		/* get the buffer for the current dmap. */
+		lblkno = BLKTODMAP(blkno, bmp->db_l2nbperpage);
+		mp = read_metapage(ipbmap, lblkno, PSIZE, 0);
+		if (mp == NULL) {
+			IREAD_UNLOCK(ipbmap);
+			return -EIO;
+		}
+		dp = (struct dmap *) mp->data;
+
+		/* determine the number of blocks to be freed from
+		 * this dmap.
+		 */
+		nb = min(rem, BPERDMAP - (blkno & (BPERDMAP - 1)));
+
+		DBALLOCCK(bmp->db_DBmap, bmp->db_mapsize, blkno, nb);
+
+		/* free the blocks. */
+		if ((rc = dbFreeDmap(bmp, dp, blkno, nb))) {
+			release_metapage(mp);
+			IREAD_UNLOCK(ipbmap);
+			return (rc);
+		}
+
+		DBFREE(bmp->db_DBmap, bmp->db_mapsize, blkno, nb);
+	}
+
+	/* write the last buffer. */
+	write_metapage(mp);
+
+	IREAD_UNLOCK(ipbmap);
+
+	return (0);
+}
+
+
+/*
+ * NAME:	dbUpdatePMap()
+ *
+ * FUNCTION:    update the allocation state (free or allocate) of the
+ *		specified block range in the persistent block allocation map.
+ *		
+ *		the blocks will be updated in the persistent map one
+ *		dmap at a time.
+ *
+ * PARAMETERS:
+ *      ipbmap	-  pointer to in-core inode for the block map.
+ *      free	- TRUE if block range is to be freed from the persistent
+ *		  map; FALSE if it is to   be allocated.
+ *      blkno	-  starting block number of the range.
+ *      nblocks	-  number of contiguous blocks in the range.
+ *      tblk	-  transaction block;
+ *
+ * RETURN VALUES:
+ *      0	- success
+ *      -EIO	- i/o error
+ */
+int
+dbUpdatePMap(struct inode *ipbmap,
+	     int free, s64 blkno, s64 nblocks, struct tblock * tblk)
+{
+	int nblks, dbitno, wbitno, rbits;
+	int word, nbits, nwords;
+	struct bmap *bmp = JFS_SBI(ipbmap->i_sb)->bmap;
+	s64 lblkno, rem, lastlblkno;
+	u32 mask;
+	struct dmap *dp;
+	struct metapage *mp;
+	struct jfs_log *log;
+	int lsn, difft, diffp;
+
+	/* the blocks better be within the mapsize. */
+	if (blkno + nblocks > bmp->db_mapsize) {
+		printk(KERN_ERR "blkno = %Lx, nblocks = %Lx\n",
+		       (unsigned long long) blkno,
+		       (unsigned long long) nblocks);
+		jfs_error(ipbmap->i_sb,
+			  "dbUpdatePMap: blocks are outside the map");
+		return -EIO;
+	}
+
+	/* compute delta of transaction lsn from log syncpt */
+	lsn = tblk->lsn;
+	log = (struct jfs_log *) JFS_SBI(tblk->sb)->log;
+	logdiff(difft, lsn, log);
+
+	/*
+	 * update the block state a dmap at a time.
+	 */
+	mp = NULL;
+	lastlblkno = 0;
+	for (rem = nblocks; rem > 0; rem -= nblks, blkno += nblks) {
+		/* get the buffer for the current dmap. */
+		lblkno = BLKTODMAP(blkno, bmp->db_l2nbperpage);
+		if (lblkno != lastlblkno) {
+			if (mp) {
+				write_metapage(mp);
+			}
+
+			mp = read_metapage(bmp->db_ipbmap, lblkno, PSIZE,
+					   0);
+			if (mp == NULL)
+				return -EIO;
+		}
+		dp = (struct dmap *) mp->data;
+
+		/* determine the bit number and word within the dmap of
+		 * the starting block.  also determine how many blocks
+		 * are to be updated within this dmap.
+		 */
+		dbitno = blkno & (BPERDMAP - 1);
+		word = dbitno >> L2DBWORD;
+		nblks = min(rem, (s64)BPERDMAP - dbitno);
+
+		/* update the bits of the dmap words. the first and last
+		 * words may only have a subset of their bits updated. if
+		 * this is the case, we'll work against that word (i.e.
+		 * partial first and/or last) only in a single pass.  a 
+		 * single pass will also be used to update all words that
+		 * are to have all their bits updated.
+		 */
+		for (rbits = nblks; rbits > 0;
+		     rbits -= nbits, dbitno += nbits) {
+			/* determine the bit number within the word and
+			 * the number of bits within the word.
+			 */
+			wbitno = dbitno & (DBWORD - 1);
+			nbits = min(rbits, DBWORD - wbitno);
+
+			/* check if only part of the word is to be updated. */
+			if (nbits < DBWORD) {
+				/* update (free or allocate) the bits
+				 * in this word.
+				 */
+				mask =
+				    (ONES << (DBWORD - nbits) >> wbitno);
+				if (free)
+					dp->pmap[word] &=
+					    cpu_to_le32(~mask);
+				else
+					dp->pmap[word] |=
+					    cpu_to_le32(mask);
+
+				word += 1;
+			} else {
+				/* one or more words are to have all
+				 * their bits updated.  determine how
+				 * many words and how many bits.
+				 */
+				nwords = rbits >> L2DBWORD;
+				nbits = nwords << L2DBWORD;
+
+				/* update (free or allocate) the bits
+				 * in these words.
+				 */
+				if (free)
+					memset(&dp->pmap[word], 0,
+					       nwords * 4);
+				else
+					memset(&dp->pmap[word], (int) ONES,
+					       nwords * 4);
+
+				word += nwords;
+			}
+		}
+
+		/*
+		 * update dmap lsn
+		 */
+		if (lblkno == lastlblkno)
+			continue;
+
+		lastlblkno = lblkno;
+
+		if (mp->lsn != 0) {
+			/* inherit older/smaller lsn */
+			logdiff(diffp, mp->lsn, log);
+			if (difft < diffp) {
+				mp->lsn = lsn;
+
+				/* move bp after tblock in logsync list */
+				LOGSYNC_LOCK(log);
+				list_del(&mp->synclist);
+				list_add(&mp->synclist, &tblk->synclist);
+				LOGSYNC_UNLOCK(log);
+			}
+
+			/* inherit younger/larger clsn */
+			LOGSYNC_LOCK(log);
+			logdiff(difft, tblk->clsn, log);
+			logdiff(diffp, mp->clsn, log);
+			if (difft > diffp)
+				mp->clsn = tblk->clsn;
+			LOGSYNC_UNLOCK(log);
+		} else {
+			mp->log = log;
+			mp->lsn = lsn;
+
+			/* insert bp after tblock in logsync list */
+			LOGSYNC_LOCK(log);
+
+			log->count++;
+			list_add(&mp->synclist, &tblk->synclist);
+
+			mp->clsn = tblk->clsn;
+			LOGSYNC_UNLOCK(log);
+		}
+	}
+
+	/* write the last buffer. */
+	if (mp) {
+		write_metapage(mp);
+	}
+
+	return (0);
+}
+
+
+/*
+ * NAME:	dbNextAG()
+ *
+ * FUNCTION:    find the preferred allocation group for new allocations.
+ *
+ *		Within the allocation groups, we maintain a preferred
+ *		allocation group which consists of a group with at least
+ *		average free space.  It is the preferred group that we target
+ *		new inode allocation towards.  The tie-in between inode
+ *		allocation and block allocation occurs as we allocate the
+ *		first (data) block of an inode and specify the inode (block)
+ *		as the allocation hint for this block.
+ *
+ *		We try to avoid having more than one open file growing in
+ *		an allocation group, as this will lead to fragmentation.
+ *		This differs from the old OS/2 method of trying to keep
+ *		empty ags around for large allocations.
+ *
+ * PARAMETERS:
+ *      ipbmap	-  pointer to in-core inode for the block map.
+ *
+ * RETURN VALUES:
+ *      the preferred allocation group number.
+ */
+int dbNextAG(struct inode *ipbmap)
+{
+	s64 avgfree;
+	int agpref;
+	s64 hwm = 0;
+	int i;
+	int next_best = -1;
+	struct bmap *bmp = JFS_SBI(ipbmap->i_sb)->bmap;
+
+	BMAP_LOCK(bmp);
+
+	/* determine the average number of free blocks within the ags. */
+	avgfree = (u32)bmp->db_nfree / bmp->db_numag;
+
+	/*
+	 * if the current preferred ag does not have an active allocator
+	 * and has at least average freespace, return it
+	 */
+	agpref = bmp->db_agpref;
+	if ((atomic_read(&bmp->db_active[agpref]) == 0) &&
+	    (bmp->db_agfree[agpref] >= avgfree))
+		goto unlock;
+
+	/* From the last preferred ag, find the next one with at least
+	 * average free space.
+	 */
+	for (i = 0 ; i < bmp->db_numag; i++, agpref++) {
+		if (agpref == bmp->db_numag)
+			agpref = 0;
+
+		if (atomic_read(&bmp->db_active[agpref]))
+			/* open file is currently growing in this ag */
+			continue;
+		if (bmp->db_agfree[agpref] >= avgfree) {
+			/* Return this one */
+			bmp->db_agpref = agpref;
+			goto unlock;
+		} else if (bmp->db_agfree[agpref] > hwm) {
+			/* Less than avg. freespace, but best so far */
+			hwm = bmp->db_agfree[agpref];
+			next_best = agpref;
+		}
+	}
+
+	/*
+	 * If no inactive ag was found with average freespace, use the
+	 * next best
+	 */
+	if (next_best != -1)
+		bmp->db_agpref = next_best;
+	/* else leave db_agpref unchanged */
+unlock:
+	BMAP_UNLOCK(bmp);
+
+	/* return the preferred group.
+	 */
+	return (bmp->db_agpref);
+}
+
+/*
+ * NAME:	dbAlloc()
+ *
+ * FUNCTION:    attempt to allocate a specified number of contiguous free
+ *		blocks from the working allocation block map.
+ *
+ *		the block allocation policy uses hints and a multi-step
+ *		approach.
+ *
+ *	  	for allocation requests smaller than the number of blocks
+ *		per dmap, we first try to allocate the new blocks
+ *		immediately following the hint.  if these blocks are not
+ *		available, we try to allocate blocks near the hint.  if
+ *		no blocks near the hint are available, we next try to 
+ *		allocate within the same dmap as contains the hint.
+ *
+ *		if no blocks are available in the dmap or the allocation
+ *		request is larger than the dmap size, we try to allocate
+ *		within the same allocation group as contains the hint. if
+ *		this does not succeed, we finally try to allocate anywhere
+ *		within the aggregate.
+ *
+ *		we also try to allocate anywhere within the aggregate for
+ *		for allocation requests larger than the allocation group
+ *		size or requests that specify no hint value.
+ *
+ * PARAMETERS:
+ *      ip	-  pointer to in-core inode;
+ *      hint	- allocation hint.
+ *      nblocks	- number of contiguous blocks in the range.
+ *      results	- on successful return, set to the starting block number
+ *		  of the newly allocated contiguous range.
+ *
+ * RETURN VALUES:
+ *      0	- success
+ *      -ENOSPC	- insufficient disk resources
+ *      -EIO	- i/o error
+ */
+int dbAlloc(struct inode *ip, s64 hint, s64 nblocks, s64 * results)
+{
+	int rc, agno;
+	struct inode *ipbmap = JFS_SBI(ip->i_sb)->ipbmap;
+	struct bmap *bmp;
+	struct metapage *mp;
+	s64 lblkno, blkno;
+	struct dmap *dp;
+	int l2nb;
+	s64 mapSize;
+	int writers;
+
+	/* assert that nblocks is valid */
+	assert(nblocks > 0);
+
+#ifdef _STILL_TO_PORT
+	/* DASD limit check                                     F226941 */
+	if (OVER_LIMIT(ip, nblocks))
+		return -ENOSPC;
+#endif				/* _STILL_TO_PORT */
+
+	/* get the log2 number of blocks to be allocated.
+	 * if the number of blocks is not a log2 multiple, 
+	 * it will be rounded up to the next log2 multiple.
+	 */
+	l2nb = BLKSTOL2(nblocks);
+
+	bmp = JFS_SBI(ip->i_sb)->bmap;
+
+//retry:        /* serialize w.r.t.extendfs() */
+	mapSize = bmp->db_mapsize;
+
+	/* the hint should be within the map */
+	if (hint >= mapSize) {
+		jfs_error(ip->i_sb, "dbAlloc: the hint is outside the map");
+		return -EIO;
+	}
+
+	/* if the number of blocks to be allocated is greater than the
+	 * allocation group size, try to allocate anywhere.
+	 */
+	if (l2nb > bmp->db_agl2size) {
+		IWRITE_LOCK(ipbmap);
+
+		rc = dbAllocAny(bmp, nblocks, l2nb, results);
+		if (rc == 0) {
+			DBALLOC(bmp->db_DBmap, bmp->db_mapsize, *results,
+				nblocks);
+		}
+
+		goto write_unlock;
+	}
+
+	/*
+	 * If no hint, let dbNextAG recommend an allocation group
+	 */
+	if (hint == 0)
+		goto pref_ag;
+
+	/* we would like to allocate close to the hint.  adjust the
+	 * hint to the block following the hint since the allocators
+	 * will start looking for free space starting at this point.
+	 */
+	blkno = hint + 1;
+
+	if (blkno >= bmp->db_mapsize)
+		goto pref_ag;
+
+	agno = blkno >> bmp->db_agl2size;
+
+	/* check if blkno crosses over into a new allocation group.
+	 * if so, check if we should allow allocations within this
+	 * allocation group.
+	 */
+	if ((blkno & (bmp->db_agsize - 1)) == 0)
+		/* check if the AG is currenly being written to.
+		 * if so, call dbNextAG() to find a non-busy
+		 * AG with sufficient free space.
+		 */
+		if (atomic_read(&bmp->db_active[agno]))
+			goto pref_ag;
+
+	/* check if the allocation request size can be satisfied from a
+	 * single dmap.  if so, try to allocate from the dmap containing
+	 * the hint using a tiered strategy.
+	 */
+	if (nblocks <= BPERDMAP) {
+		IREAD_LOCK(ipbmap);
+
+		/* get the buffer for the dmap containing the hint.
+		 */
+		rc = -EIO;
+		lblkno = BLKTODMAP(blkno, bmp->db_l2nbperpage);
+		mp = read_metapage(ipbmap, lblkno, PSIZE, 0);
+		if (mp == NULL)
+			goto read_unlock;
+
+		dp = (struct dmap *) mp->data;
+
+		/* first, try to satisfy the allocation request with the
+		 * blocks beginning at the hint.
+		 */
+		if ((rc = dbAllocNext(bmp, dp, blkno, (int) nblocks))
+		    != -ENOSPC) {
+			if (rc == 0) {
+				*results = blkno;
+				DBALLOC(bmp->db_DBmap, bmp->db_mapsize,
+					*results, nblocks);
+				mark_metapage_dirty(mp);
+			}
+
+			release_metapage(mp);
+			goto read_unlock;
+		}
+
+		writers = atomic_read(&bmp->db_active[agno]);
+		if ((writers > 1) ||
+		    ((writers == 1) && (JFS_IP(ip)->active_ag != agno))) {
+			/*
+			 * Someone else is writing in this allocation
+			 * group.  To avoid fragmenting, try another ag
+			 */
+			release_metapage(mp);
+			IREAD_UNLOCK(ipbmap);
+			goto pref_ag;
+		}
+
+		/* next, try to satisfy the allocation request with blocks
+		 * near the hint.
+		 */
+		if ((rc =
+		     dbAllocNear(bmp, dp, blkno, (int) nblocks, l2nb, results))
+		    != -ENOSPC) {
+			if (rc == 0) {
+				DBALLOC(bmp->db_DBmap, bmp->db_mapsize,
+					*results, nblocks);
+				mark_metapage_dirty(mp);
+			}
+
+			release_metapage(mp);
+			goto read_unlock;
+		}
+
+		/* try to satisfy the allocation request with blocks within
+		 * the same dmap as the hint.
+		 */
+		if ((rc = dbAllocDmapLev(bmp, dp, (int) nblocks, l2nb, results))
+		    != -ENOSPC) {
+			if (rc == 0) {
+				DBALLOC(bmp->db_DBmap, bmp->db_mapsize,
+					*results, nblocks);
+				mark_metapage_dirty(mp);
+			}
+
+			release_metapage(mp);
+			goto read_unlock;
+		}
+
+		release_metapage(mp);
+		IREAD_UNLOCK(ipbmap);
+	}
+
+	/* try to satisfy the allocation request with blocks within
+	 * the same allocation group as the hint.
+	 */
+	IWRITE_LOCK(ipbmap);
+	if ((rc = dbAllocAG(bmp, agno, nblocks, l2nb, results))
+	    != -ENOSPC) {
+		if (rc == 0)
+			DBALLOC(bmp->db_DBmap, bmp->db_mapsize,
+				*results, nblocks);
+		goto write_unlock;
+	}
+	IWRITE_UNLOCK(ipbmap);
+
+
+      pref_ag:
+	/*
+	 * Let dbNextAG recommend a preferred allocation group
+	 */
+	agno = dbNextAG(ipbmap);
+	IWRITE_LOCK(ipbmap);
+
+	/* Try to allocate within this allocation group.  if that fails, try to
+	 * allocate anywhere in the map.
+	 */
+	if ((rc = dbAllocAG(bmp, agno, nblocks, l2nb, results)) == -ENOSPC)
+		rc = dbAllocAny(bmp, nblocks, l2nb, results);
+	if (rc == 0) {
+		DBALLOC(bmp->db_DBmap, bmp->db_mapsize, *results, nblocks);
+	}
+
+      write_unlock:
+	IWRITE_UNLOCK(ipbmap);
+
+	return (rc);
+
+      read_unlock:
+	IREAD_UNLOCK(ipbmap);
+
+	return (rc);
+}
+
+#ifdef _NOTYET
+/*
+ * NAME:	dbAllocExact()
+ *
+ * FUNCTION:    try to allocate the requested extent;
+ *
+ * PARAMETERS:
+ *      ip	- pointer to in-core inode;
+ *      blkno	- extent address;
+ *      nblocks	- extent length;
+ *
+ * RETURN VALUES:
+ *      0	- success
+ *      -ENOSPC	- insufficient disk resources
+ *      -EIO	- i/o error
+ */
+int dbAllocExact(struct inode *ip, s64 blkno, int nblocks)
+{
+	int rc;
+	struct inode *ipbmap = JFS_SBI(ip->i_sb)->ipbmap;
+	struct bmap *bmp = JFS_SBI(ip->i_sb)->bmap;
+	struct dmap *dp;
+	s64 lblkno;
+	struct metapage *mp;
+
+	IREAD_LOCK(ipbmap);
+
+	/*
+	 * validate extent request:
+	 *
+	 * note: defragfs policy:
+	 *  max 64 blocks will be moved.  
+	 *  allocation request size must be satisfied from a single dmap.
+	 */
+	if (nblocks <= 0 || nblocks > BPERDMAP || blkno >= bmp->db_mapsize) {
+		IREAD_UNLOCK(ipbmap);
+		return -EINVAL;
+	}
+
+	if (nblocks > ((s64) 1 << bmp->db_maxfreebud)) {
+		/* the free space is no longer available */
+		IREAD_UNLOCK(ipbmap);
+		return -ENOSPC;
+	}
+
+	/* read in the dmap covering the extent */
+	lblkno = BLKTODMAP(blkno, bmp->db_l2nbperpage);
+	mp = read_metapage(ipbmap, lblkno, PSIZE, 0);
+	if (mp == NULL) {
+		IREAD_UNLOCK(ipbmap);
+		return -EIO;
+	}
+	dp = (struct dmap *) mp->data;
+
+	/* try to allocate the requested extent */
+	rc = dbAllocNext(bmp, dp, blkno, nblocks);
+
+	IREAD_UNLOCK(ipbmap);
+
+	if (rc == 0) {
+		DBALLOC(bmp->db_DBmap, bmp->db_mapsize, blkno, nblocks);
+		mark_metapage_dirty(mp);
+	}
+	release_metapage(mp);
+
+	return (rc);
+}
+#endif /* _NOTYET */
+
+/*
+ * NAME:	dbReAlloc()
+ *
+ * FUNCTION:    attempt to extend a current allocation by a specified
+ *		number of blocks.
+ *
+ *		this routine attempts to satisfy the allocation request
+ *		by first trying to extend the existing allocation in
+ *		place by allocating the additional blocks as the blocks
+ *		immediately following the current allocation.  if these
+ *		blocks are not available, this routine will attempt to
+ *		allocate a new set of contiguous blocks large enough
+ *		to cover the existing allocation plus the additional
+ *		number of blocks required.
+ *
+ * PARAMETERS:
+ *      ip	    -  pointer to in-core inode requiring allocation.
+ *      blkno	    -  starting block of the current allocation.
+ *      nblocks	    -  number of contiguous blocks within the current
+ *		       allocation.
+ *      addnblocks  -  number of blocks to add to the allocation.
+ *      results	-      on successful return, set to the starting block number
+ *		       of the existing allocation if the existing allocation
+ *		       was extended in place or to a newly allocated contiguous
+ *		       range if the existing allocation could not be extended
+ *		       in place.
+ *
+ * RETURN VALUES:
+ *      0	- success
+ *      -ENOSPC	- insufficient disk resources
+ *      -EIO	- i/o error
+ */
+int
+dbReAlloc(struct inode *ip,
+	  s64 blkno, s64 nblocks, s64 addnblocks, s64 * results)
+{
+	int rc;
+
+	/* try to extend the allocation in place.
+	 */
+	if ((rc = dbExtend(ip, blkno, nblocks, addnblocks)) == 0) {
+		*results = blkno;
+		return (0);
+	} else {
+		if (rc != -ENOSPC)
+			return (rc);
+	}
+
+	/* could not extend the allocation in place, so allocate a
+	 * new set of blocks for the entire request (i.e. try to get
+	 * a range of contiguous blocks large enough to cover the
+	 * existing allocation plus the additional blocks.)
+	 */
+	return (dbAlloc
+		(ip, blkno + nblocks - 1, addnblocks + nblocks, results));
+}
+
+
+/*
+ * NAME:	dbExtend()
+ *
+ * FUNCTION:    attempt to extend a current allocation by a specified
+ *		number of blocks.
+ *
+ *		this routine attempts to satisfy the allocation request
+ *		by first trying to extend the existing allocation in
+ *		place by allocating the additional blocks as the blocks
+ *		immediately following the current allocation.
+ *
+ * PARAMETERS:
+ *      ip	    -  pointer to in-core inode requiring allocation.
+ *      blkno	    -  starting block of the current allocation.
+ *      nblocks	    -  number of contiguous blocks within the current
+ *		       allocation.
+ *      addnblocks  -  number of blocks to add to the allocation.
+ *
+ * RETURN VALUES:
+ *      0	- success
+ *      -ENOSPC	- insufficient disk resources
+ *      -EIO	- i/o error
+ */
+static int dbExtend(struct inode *ip, s64 blkno, s64 nblocks, s64 addnblocks)
+{
+	struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb);
+	s64 lblkno, lastblkno, extblkno;
+	uint rel_block;
+	struct metapage *mp;
+	struct dmap *dp;
+	int rc;
+	struct inode *ipbmap = sbi->ipbmap;
+	struct bmap *bmp;
+
+	/*
+	 * We don't want a non-aligned extent to cross a page boundary
+	 */
+	if (((rel_block = blkno & (sbi->nbperpage - 1))) &&
+	    (rel_block + nblocks + addnblocks > sbi->nbperpage))
+		return -ENOSPC;
+
+	/* get the last block of the current allocation */
+	lastblkno = blkno + nblocks - 1;
+
+	/* determine the block number of the block following
+	 * the existing allocation.
+	 */
+	extblkno = lastblkno + 1;
+
+	IREAD_LOCK(ipbmap);
+
+	/* better be within the file system */
+	bmp = sbi->bmap;
+	if (lastblkno < 0 || lastblkno >= bmp->db_mapsize) {
+		IREAD_UNLOCK(ipbmap);
+		jfs_error(ip->i_sb,
+			  "dbExtend: the block is outside the filesystem");
+		return -EIO;
+	}
+
+	/* we'll attempt to extend the current allocation in place by
+	 * allocating the additional blocks as the blocks immediately
+	 * following the current allocation.  we only try to extend the
+	 * current allocation in place if the number of additional blocks
+	 * can fit into a dmap, the last block of the current allocation
+	 * is not the last block of the file system, and the start of the
+	 * inplace extension is not on an allocation group boundry.
+	 */
+	if (addnblocks > BPERDMAP || extblkno >= bmp->db_mapsize ||
+	    (extblkno & (bmp->db_agsize - 1)) == 0) {
+		IREAD_UNLOCK(ipbmap);
+		return -ENOSPC;
+	}
+
+	/* get the buffer for the dmap containing the first block
+	 * of the extension.
+	 */
+	lblkno = BLKTODMAP(extblkno, bmp->db_l2nbperpage);
+	mp = read_metapage(ipbmap, lblkno, PSIZE, 0);
+	if (mp == NULL) {
+		IREAD_UNLOCK(ipbmap);
+		return -EIO;
+	}
+
+	DBALLOCCK(bmp->db_DBmap, bmp->db_mapsize, blkno, nblocks);
+	dp = (struct dmap *) mp->data;
+
+	/* try to allocate the blocks immediately following the
+	 * current allocation.
+	 */
+	rc = dbAllocNext(bmp, dp, extblkno, (int) addnblocks);
+
+	IREAD_UNLOCK(ipbmap);
+
+	/* were we successful ? */
+	if (rc == 0) {
+		DBALLOC(bmp->db_DBmap, bmp->db_mapsize, extblkno,
+			addnblocks);
+		write_metapage(mp);
+	} else
+		/* we were not successful */
+		release_metapage(mp);
+
+
+	return (rc);
+}
+
+
+/*
+ * NAME:	dbAllocNext()
+ *
+ * FUNCTION:    attempt to allocate the blocks of the specified block
+ *		range within a dmap.
+ *
+ * PARAMETERS:
+ *      bmp	-  pointer to bmap descriptor
+ *      dp	-  pointer to dmap.
+ *      blkno	-  starting block number of the range.
+ *      nblocks	-  number of contiguous free blocks of the range.
+ *
+ * RETURN VALUES:
+ *      0	- success
+ *      -ENOSPC	- insufficient disk resources
+ *      -EIO	- i/o error
+ *
+ * serialization: IREAD_LOCK(ipbmap) held on entry/exit;
+ */
+static int dbAllocNext(struct bmap * bmp, struct dmap * dp, s64 blkno,
+		       int nblocks)
+{
+	int dbitno, word, rembits, nb, nwords, wbitno, nw;
+	int l2size;
+	s8 *leaf;
+	u32 mask;
+
+	if (dp->tree.leafidx != cpu_to_le32(LEAFIND)) {
+		jfs_error(bmp->db_ipbmap->i_sb,
+			  "dbAllocNext: Corrupt dmap page");
+		return -EIO;
+	}
+
+	/* pick up a pointer to the leaves of the dmap tree.
+	 */
+	leaf = dp->tree.stree + le32_to_cpu(dp->tree.leafidx);
+
+	/* determine the bit number and word within the dmap of the
+	 * starting block.
+	 */
+	dbitno = blkno & (BPERDMAP - 1);
+	word = dbitno >> L2DBWORD;
+
+	/* check if the specified block range is contained within
+	 * this dmap.
+	 */
+	if (dbitno + nblocks > BPERDMAP)
+		return -ENOSPC;
+
+	/* check if the starting leaf indicates that anything
+	 * is free.
+	 */
+	if (leaf[word] == NOFREE)
+		return -ENOSPC;
+
+	/* check the dmaps words corresponding to block range to see
+	 * if the block range is free.  not all bits of the first and
+	 * last words may be contained within the block range.  if this
+	 * is the case, we'll work against those words (i.e. partial first
+	 * and/or last) on an individual basis (a single pass) and examine
+	 * the actual bits to determine if they are free.  a single pass
+	 * will be used for all dmap words fully contained within the
+	 * specified range.  within this pass, the leaves of the dmap
+	 * tree will be examined to determine if the blocks are free. a
+	 * single leaf may describe the free space of multiple dmap
+	 * words, so we may visit only a subset of the actual leaves
+	 * corresponding to the dmap words of the block range.
+	 */
+	for (rembits = nblocks; rembits > 0; rembits -= nb, dbitno += nb) {
+		/* determine the bit number within the word and
+		 * the number of bits within the word.
+		 */
+		wbitno = dbitno & (DBWORD - 1);
+		nb = min(rembits, DBWORD - wbitno);
+
+		/* check if only part of the word is to be examined.
+		 */
+		if (nb < DBWORD) {
+			/* check if the bits are free.
+			 */
+			mask = (ONES << (DBWORD - nb) >> wbitno);
+			if ((mask & ~le32_to_cpu(dp->wmap[word])) != mask)
+				return -ENOSPC;
+
+			word += 1;
+		} else {
+			/* one or more dmap words are fully contained
+			 * within the block range.  determine how many
+			 * words and how many bits.
+			 */
+			nwords = rembits >> L2DBWORD;
+			nb = nwords << L2DBWORD;
+
+			/* now examine the appropriate leaves to determine
+			 * if the blocks are free.
+			 */
+			while (nwords > 0) {
+				/* does the leaf describe any free space ?
+				 */
+				if (leaf[word] < BUDMIN)
+					return -ENOSPC;
+
+				/* determine the l2 number of bits provided
+				 * by this leaf.
+				 */
+				l2size =
+				    min((int)leaf[word], NLSTOL2BSZ(nwords));
+
+				/* determine how many words were handled.
+				 */
+				nw = BUDSIZE(l2size, BUDMIN);
+
+				nwords -= nw;
+				word += nw;
+			}
+		}
+	}
+
+	/* allocate the blocks.
+	 */
+	return (dbAllocDmap(bmp, dp, blkno, nblocks));
+}
+
+
+/*
+ * NAME:	dbAllocNear()
+ *
+ * FUNCTION:    attempt to allocate a number of contiguous free blocks near
+ *		a specified block (hint) within a dmap.
+ *
+ *		starting with the dmap leaf that covers the hint, we'll
+ *		check the next four contiguous leaves for sufficient free
+ *		space.  if sufficient free space is found, we'll allocate
+ *		the desired free space.
+ *
+ * PARAMETERS:
+ *      bmp	-  pointer to bmap descriptor
+ *      dp	-  pointer to dmap.
+ *      blkno	-  block number to allocate near.
+ *      nblocks	-  actual number of contiguous free blocks desired.
+ *      l2nb	-  log2 number of contiguous free blocks desired.
+ *      results	-  on successful return, set to the starting block number
+ *		   of the newly allocated range.
+ *
+ * RETURN VALUES:
+ *      0	- success
+ *      -ENOSPC	- insufficient disk resources
+ *      -EIO	- i/o error
+ *
+ * serialization: IREAD_LOCK(ipbmap) held on entry/exit;
+ */
+static int
+dbAllocNear(struct bmap * bmp,
+	    struct dmap * dp, s64 blkno, int nblocks, int l2nb, s64 * results)
+{
+	int word, lword, rc;
+	s8 *leaf;
+
+	if (dp->tree.leafidx != cpu_to_le32(LEAFIND)) {
+		jfs_error(bmp->db_ipbmap->i_sb,
+			  "dbAllocNear: Corrupt dmap page");
+		return -EIO;
+	}
+
+	leaf = dp->tree.stree + le32_to_cpu(dp->tree.leafidx);
+
+	/* determine the word within the dmap that holds the hint
+	 * (i.e. blkno).  also, determine the last word in the dmap
+	 * that we'll include in our examination.
+	 */
+	word = (blkno & (BPERDMAP - 1)) >> L2DBWORD;
+	lword = min(word + 4, LPERDMAP);
+
+	/* examine the leaves for sufficient free space.
+	 */
+	for (; word < lword; word++) {
+		/* does the leaf describe sufficient free space ?
+		 */
+		if (leaf[word] < l2nb)
+			continue;
+
+		/* determine the block number within the file system
+		 * of the first block described by this dmap word.
+		 */
+		blkno = le64_to_cpu(dp->start) + (word << L2DBWORD);
+
+		/* if not all bits of the dmap word are free, get the
+		 * starting bit number within the dmap word of the required
+		 * string of free bits and adjust the block number with the
+		 * value.
+		 */
+		if (leaf[word] < BUDMIN)
+			blkno +=
+			    dbFindBits(le32_to_cpu(dp->wmap[word]), l2nb);
+
+		/* allocate the blocks.
+		 */
+		if ((rc = dbAllocDmap(bmp, dp, blkno, nblocks)) == 0)
+			*results = blkno;
+
+		return (rc);
+	}
+
+	return -ENOSPC;
+}
+
+
+/*
+ * NAME:	dbAllocAG()
+ *
+ * FUNCTION:    attempt to allocate the specified number of contiguous
+ *		free blocks within the specified allocation group.
+ *
+ *		unless the allocation group size is equal to the number
+ *		of blocks per dmap, the dmap control pages will be used to
+ *		find the required free space, if available.  we start the
+ *		search at the highest dmap control page level which
+ *		distinctly describes the allocation group's free space
+ *		(i.e. the highest level at which the allocation group's
+ *		free space is not mixed in with that of any other group).
+ *		in addition, we start the search within this level at a
+ *		height of the dmapctl dmtree at which the nodes distinctly
+ *		describe the allocation group's free space.  at this height,
+ *		the allocation group's free space may be represented by 1
+ *		or two sub-trees, depending on the allocation group size.
+ *		we search the top nodes of these subtrees left to right for
+ *		sufficient free space.  if sufficient free space is found,
+ *		the subtree is searched to find the leftmost leaf that 
+ *		has free space.  once we have made it to the leaf, we
+ *		move the search to the next lower level dmap control page
+ *		corresponding to this leaf.  we continue down the dmap control
+ *		pages until we find the dmap that contains or starts the
+ *		sufficient free space and we allocate at this dmap.
+ *
+ *		if the allocation group size is equal to the dmap size,
+ *		we'll start at the dmap corresponding to the allocation
+ *		group and attempt the allocation at this level.
+ *
+ *		the dmap control page search is also not performed if the
+ *		allocation group is completely free and we go to the first
+ *		dmap of the allocation group to do the allocation.  this is
+ *		done because the allocation group may be part (not the first
+ *		part) of a larger binary buddy system, causing the dmap
+ *		control pages to indicate no free space (NOFREE) within
+ *		the allocation group.
+ *
+ * PARAMETERS:
+ *      bmp	-  pointer to bmap descriptor
+ *	agno	- allocation group number.
+ *      nblocks	-  actual number of contiguous free blocks desired.
+ *      l2nb	-  log2 number of contiguous free blocks desired.
+ *      results	-  on successful return, set to the starting block number
+ *		   of the newly allocated range.
+ *
+ * RETURN VALUES:
+ *      0	- success
+ *      -ENOSPC	- insufficient disk resources
+ *      -EIO	- i/o error
+ *
+ * note: IWRITE_LOCK(ipmap) held on entry/exit;
+ */
+static int
+dbAllocAG(struct bmap * bmp, int agno, s64 nblocks, int l2nb, s64 * results)
+{
+	struct metapage *mp;
+	struct dmapctl *dcp;
+	int rc, ti, i, k, m, n, agperlev;
+	s64 blkno, lblkno;
+	int budmin;
+
+	/* allocation request should not be for more than the
+	 * allocation group size.
+	 */
+	if (l2nb > bmp->db_agl2size) {
+		jfs_error(bmp->db_ipbmap->i_sb,
+			  "dbAllocAG: allocation request is larger than the "
+			  "allocation group size");
+		return -EIO;
+	}
+
+	/* determine the starting block number of the allocation
+	 * group.
+	 */
+	blkno = (s64) agno << bmp->db_agl2size;
+
+	/* check if the allocation group size is the minimum allocation
+	 * group size or if the allocation group is completely free. if
+	 * the allocation group size is the minimum size of BPERDMAP (i.e.
+	 * 1 dmap), there is no need to search the dmap control page (below)
+	 * that fully describes the allocation group since the allocation
+	 * group is already fully described by a dmap.  in this case, we
+	 * just call dbAllocCtl() to search the dmap tree and allocate the
+	 * required space if available.  
+	 *
+	 * if the allocation group is completely free, dbAllocCtl() is
+	 * also called to allocate the required space.  this is done for
+	 * two reasons.  first, it makes no sense searching the dmap control
+	 * pages for free space when we know that free space exists.  second,
+	 * the dmap control pages may indicate that the allocation group
+	 * has no free space if the allocation group is part (not the first
+	 * part) of a larger binary buddy system.
+	 */
+	if (bmp->db_agsize == BPERDMAP
+	    || bmp->db_agfree[agno] == bmp->db_agsize) {
+		rc = dbAllocCtl(bmp, nblocks, l2nb, blkno, results);
+		if ((rc == -ENOSPC) &&
+		    (bmp->db_agfree[agno] == bmp->db_agsize)) {
+			printk(KERN_ERR "blkno = %Lx, blocks = %Lx\n",
+			       (unsigned long long) blkno,
+			       (unsigned long long) nblocks);
+			jfs_error(bmp->db_ipbmap->i_sb,
+				  "dbAllocAG: dbAllocCtl failed in free AG");
+		}
+		return (rc);
+	}
+
+	/* the buffer for the dmap control page that fully describes the
+	 * allocation group.
+	 */
+	lblkno = BLKTOCTL(blkno, bmp->db_l2nbperpage, bmp->db_aglevel);
+	mp = read_metapage(bmp->db_ipbmap, lblkno, PSIZE, 0);
+	if (mp == NULL)
+		return -EIO;
+	dcp = (struct dmapctl *) mp->data;
+	budmin = dcp->budmin;
+
+	if (dcp->leafidx != cpu_to_le32(CTLLEAFIND)) {
+		jfs_error(bmp->db_ipbmap->i_sb,
+			  "dbAllocAG: Corrupt dmapctl page");
+		release_metapage(mp);
+		return -EIO;
+	}
+
+	/* search the subtree(s) of the dmap control page that describes
+	 * the allocation group, looking for sufficient free space.  to begin,
+	 * determine how many allocation groups are represented in a dmap
+	 * control page at the control page level (i.e. L0, L1, L2) that
+	 * fully describes an allocation group. next, determine the starting
+	 * tree index of this allocation group within the control page.
+	 */
+	agperlev =
+	    (1 << (L2LPERCTL - (bmp->db_agheigth << 1))) / bmp->db_agwidth;
+	ti = bmp->db_agstart + bmp->db_agwidth * (agno & (agperlev - 1));
+
+	/* dmap control page trees fan-out by 4 and a single allocation 
+	 * group may be described by 1 or 2 subtrees within the ag level
+	 * dmap control page, depending upon the ag size. examine the ag's
+	 * subtrees for sufficient free space, starting with the leftmost
+	 * subtree.
+	 */
+	for (i = 0; i < bmp->db_agwidth; i++, ti++) {
+		/* is there sufficient free space ?
+		 */
+		if (l2nb > dcp->stree[ti])
+			continue;
+
+		/* sufficient free space found in a subtree. now search down
+		 * the subtree to find the leftmost leaf that describes this
+		 * free space.
+		 */
+		for (k = bmp->db_agheigth; k > 0; k--) {
+			for (n = 0, m = (ti << 2) + 1; n < 4; n++) {
+				if (l2nb <= dcp->stree[m + n]) {
+					ti = m + n;
+					break;
+				}
+			}
+			if (n == 4) {
+				jfs_error(bmp->db_ipbmap->i_sb,
+					  "dbAllocAG: failed descending stree");
+				release_metapage(mp);
+				return -EIO;
+			}
+		}
+
+		/* determine the block number within the file system
+		 * that corresponds to this leaf.
+		 */
+		if (bmp->db_aglevel == 2)
+			blkno = 0;
+		else if (bmp->db_aglevel == 1)
+			blkno &= ~(MAXL1SIZE - 1);
+		else		/* bmp->db_aglevel == 0 */
+			blkno &= ~(MAXL0SIZE - 1);
+
+		blkno +=
+		    ((s64) (ti - le32_to_cpu(dcp->leafidx))) << budmin;
+
+		/* release the buffer in preparation for going down
+		 * the next level of dmap control pages.
+		 */
+		release_metapage(mp);
+
+		/* check if we need to continue to search down the lower
+		 * level dmap control pages.  we need to if the number of
+		 * blocks required is less than maximum number of blocks
+		 * described at the next lower level.
+		 */
+		if (l2nb < budmin) {
+
+			/* search the lower level dmap control pages to get
+			 * the starting block number of the the dmap that
+			 * contains or starts off the free space.
+			 */
+			if ((rc =
+			     dbFindCtl(bmp, l2nb, bmp->db_aglevel - 1,
+				       &blkno))) {
+				if (rc == -ENOSPC) {
+					jfs_error(bmp->db_ipbmap->i_sb,
+						  "dbAllocAG: control page "
+						  "inconsistent");
+					return -EIO;
+				}
+				return (rc);
+			}
+		}
+
+		/* allocate the blocks.
+		 */
+		rc = dbAllocCtl(bmp, nblocks, l2nb, blkno, results);
+		if (rc == -ENOSPC) {
+			jfs_error(bmp->db_ipbmap->i_sb,
+				  "dbAllocAG: unable to allocate blocks");
+			rc = -EIO;
+		}
+		return (rc);
+	}
+
+	/* no space in the allocation group.  release the buffer and
+	 * return -ENOSPC.
+	 */
+	release_metapage(mp);
+
+	return -ENOSPC;
+}
+
+
+/*
+ * NAME:	dbAllocAny()
+ *
+ * FUNCTION:    attempt to allocate the specified number of contiguous
+ *		free blocks anywhere in the file system.
+ *
+ *		dbAllocAny() attempts to find the sufficient free space by
+ *		searching down the dmap control pages, starting with the
+ *		highest level (i.e. L0, L1, L2) control page.  if free space
+ *		large enough to satisfy the desired free space is found, the
+ *		desired free space is allocated.
+ *
+ * PARAMETERS:
+ *      bmp	-  pointer to bmap descriptor
+ *      nblocks	 -  actual number of contiguous free blocks desired.
+ *      l2nb	 -  log2 number of contiguous free blocks desired.
+ *      results	-  on successful return, set to the starting block number
+ *		   of the newly allocated range.
+ *
+ * RETURN VALUES:
+ *      0	- success
+ *      -ENOSPC	- insufficient disk resources
+ *      -EIO	- i/o error
+ *
+ * serialization: IWRITE_LOCK(ipbmap) held on entry/exit;
+ */
+static int dbAllocAny(struct bmap * bmp, s64 nblocks, int l2nb, s64 * results)
+{
+	int rc;
+	s64 blkno = 0;
+
+	/* starting with the top level dmap control page, search
+	 * down the dmap control levels for sufficient free space.
+	 * if free space is found, dbFindCtl() returns the starting
+	 * block number of the dmap that contains or starts off the
+	 * range of free space.
+	 */
+	if ((rc = dbFindCtl(bmp, l2nb, bmp->db_maxlevel, &blkno)))
+		return (rc);
+
+	/* allocate the blocks.
+	 */
+	rc = dbAllocCtl(bmp, nblocks, l2nb, blkno, results);
+	if (rc == -ENOSPC) {
+		jfs_error(bmp->db_ipbmap->i_sb,
+			  "dbAllocAny: unable to allocate blocks");
+		return -EIO;
+	}
+	return (rc);
+}
+
+
+/*
+ * NAME:	dbFindCtl()
+ *
+ * FUNCTION:    starting at a specified dmap control page level and block
+ *		number, search down the dmap control levels for a range of
+ *	        contiguous free blocks large enough to satisfy an allocation
+ *		request for the specified number of free blocks.
+ *
+ *		if sufficient contiguous free blocks are found, this routine
+ *		returns the starting block number within a dmap page that
+ *		contains or starts a range of contiqious free blocks that
+ *		is sufficient in size.
+ *
+ * PARAMETERS:
+ *      bmp	-  pointer to bmap descriptor
+ *      level	-  starting dmap control page level.
+ *      l2nb	-  log2 number of contiguous free blocks desired.
+ *      *blkno	-  on entry, starting block number for conducting the search.
+ *		   on successful return, the first block within a dmap page
+ *		   that contains or starts a range of contiguous free blocks.
+ *
+ * RETURN VALUES:
+ *      0	- success
+ *      -ENOSPC	- insufficient disk resources
+ *      -EIO	- i/o error
+ *
+ * serialization: IWRITE_LOCK(ipbmap) held on entry/exit;
+ */
+static int dbFindCtl(struct bmap * bmp, int l2nb, int level, s64 * blkno)
+{
+	int rc, leafidx, lev;
+	s64 b, lblkno;
+	struct dmapctl *dcp;
+	int budmin;
+	struct metapage *mp;
+
+	/* starting at the specified dmap control page level and block
+	 * number, search down the dmap control levels for the starting
+	 * block number of a dmap page that contains or starts off 
+	 * sufficient free blocks.
+	 */
+	for (lev = level, b = *blkno; lev >= 0; lev--) {
+		/* get the buffer of the dmap control page for the block
+		 * number and level (i.e. L0, L1, L2).
+		 */
+		lblkno = BLKTOCTL(b, bmp->db_l2nbperpage, lev);
+		mp = read_metapage(bmp->db_ipbmap, lblkno, PSIZE, 0);
+		if (mp == NULL)
+			return -EIO;
+		dcp = (struct dmapctl *) mp->data;
+		budmin = dcp->budmin;
+
+		if (dcp->leafidx != cpu_to_le32(CTLLEAFIND)) {
+			jfs_error(bmp->db_ipbmap->i_sb,
+				  "dbFindCtl: Corrupt dmapctl page");
+			release_metapage(mp);
+			return -EIO;
+		}
+
+		/* search the tree within the dmap control page for
+		 * sufficent free space.  if sufficient free space is found,
+		 * dbFindLeaf() returns the index of the leaf at which
+		 * free space was found.
+		 */
+		rc = dbFindLeaf((dmtree_t *) dcp, l2nb, &leafidx);
+
+		/* release the buffer.
+		 */
+		release_metapage(mp);
+
+		/* space found ?
+		 */
+		if (rc) {
+			if (lev != level) {
+				jfs_error(bmp->db_ipbmap->i_sb,
+					  "dbFindCtl: dmap inconsistent");
+				return -EIO;
+			}
+			return -ENOSPC;
+		}
+
+		/* adjust the block number to reflect the location within
+		 * the dmap control page (i.e. the leaf) at which free 
+		 * space was found.
+		 */
+		b += (((s64) leafidx) << budmin);
+
+		/* we stop the search at this dmap control page level if
+		 * the number of blocks required is greater than or equal
+		 * to the maximum number of blocks described at the next
+		 * (lower) level.
+		 */
+		if (l2nb >= budmin)
+			break;
+	}
+
+	*blkno = b;
+	return (0);
+}
+
+
+/*
+ * NAME:	dbAllocCtl()
+ *
+ * FUNCTION:    attempt to allocate a specified number of contiguous
+ *		blocks starting within a specific dmap.  
+ *		
+ *		this routine is called by higher level routines that search
+ *		the dmap control pages above the actual dmaps for contiguous
+ *		free space.  the result of successful searches by these
+ * 		routines are the starting block numbers within dmaps, with
+ *		the dmaps themselves containing the desired contiguous free
+ *		space or starting a contiguous free space of desired size
+ *		that is made up of the blocks of one or more dmaps. these
+ *		calls should not fail due to insufficent resources.
+ *
+ *		this routine is called in some cases where it is not known
+ *		whether it will fail due to insufficient resources.  more
+ *		specifically, this occurs when allocating from an allocation
+ *		group whose size is equal to the number of blocks per dmap.
+ *		in this case, the dmap control pages are not examined prior
+ *		to calling this routine (to save pathlength) and the call
+ *		might fail.
+ *
+ *		for a request size that fits within a dmap, this routine relies
+ *		upon the dmap's dmtree to find the requested contiguous free
+ *		space.  for request sizes that are larger than a dmap, the
+ *		requested free space will start at the first block of the
+ *		first dmap (i.e. blkno).
+ *
+ * PARAMETERS:
+ *      bmp	-  pointer to bmap descriptor
+ *      nblocks	 -  actual number of contiguous free blocks to allocate.
+ *      l2nb	 -  log2 number of contiguous free blocks to allocate.
+ *      blkno	 -  starting block number of the dmap to start the allocation
+ *		    from.
+ *      results	-  on successful return, set to the starting block number
+ *		   of the newly allocated range.
+ *
+ * RETURN VALUES:
+ *      0	- success
+ *      -ENOSPC	- insufficient disk resources
+ *      -EIO	- i/o error
+ *
+ * serialization: IWRITE_LOCK(ipbmap) held on entry/exit;
+ */
+static int
+dbAllocCtl(struct bmap * bmp, s64 nblocks, int l2nb, s64 blkno, s64 * results)
+{
+	int rc, nb;
+	s64 b, lblkno, n;
+	struct metapage *mp;
+	struct dmap *dp;
+
+	/* check if the allocation request is confined to a single dmap.
+	 */
+	if (l2nb <= L2BPERDMAP) {
+		/* get the buffer for the dmap.
+		 */
+		lblkno = BLKTODMAP(blkno, bmp->db_l2nbperpage);
+		mp = read_metapage(bmp->db_ipbmap, lblkno, PSIZE, 0);
+		if (mp == NULL)
+			return -EIO;
+		dp = (struct dmap *) mp->data;
+
+		/* try to allocate the blocks.
+		 */
+		rc = dbAllocDmapLev(bmp, dp, (int) nblocks, l2nb, results);
+		if (rc == 0)
+			mark_metapage_dirty(mp);
+
+		release_metapage(mp);
+
+		return (rc);
+	}
+
+	/* allocation request involving multiple dmaps. it must start on
+	 * a dmap boundary.
+	 */
+	assert((blkno & (BPERDMAP - 1)) == 0);
+
+	/* allocate the blocks dmap by dmap.
+	 */
+	for (n = nblocks, b = blkno; n > 0; n -= nb, b += nb) {
+		/* get the buffer for the dmap.
+		 */
+		lblkno = BLKTODMAP(b, bmp->db_l2nbperpage);
+		mp = read_metapage(bmp->db_ipbmap, lblkno, PSIZE, 0);
+		if (mp == NULL) {
+			rc = -EIO;
+			goto backout;
+		}
+		dp = (struct dmap *) mp->data;
+
+		/* the dmap better be all free.
+		 */
+		if (dp->tree.stree[ROOT] != L2BPERDMAP) {
+			release_metapage(mp);
+			jfs_error(bmp->db_ipbmap->i_sb,
+				  "dbAllocCtl: the dmap is not all free");
+			rc = -EIO;
+			goto backout;
+		}
+
+		/* determine how many blocks to allocate from this dmap.
+		 */
+		nb = min(n, (s64)BPERDMAP);
+
+		/* allocate the blocks from the dmap.
+		 */
+		if ((rc = dbAllocDmap(bmp, dp, b, nb))) {
+			release_metapage(mp);
+			goto backout;
+		}
+
+		/* write the buffer.
+		 */
+		write_metapage(mp);
+	}
+
+	/* set the results (starting block number) and return.
+	 */
+	*results = blkno;
+	return (0);
+
+	/* something failed in handling an allocation request involving
+	 * multiple dmaps.  we'll try to clean up by backing out any
+	 * allocation that has already happened for this request.  if
+	 * we fail in backing out the allocation, we'll mark the file
+	 * system to indicate that blocks have been leaked.
+	 */
+      backout:
+
+	/* try to backout the allocations dmap by dmap.
+	 */
+	for (n = nblocks - n, b = blkno; n > 0;
+	     n -= BPERDMAP, b += BPERDMAP) {
+		/* get the buffer for this dmap.
+		 */
+		lblkno = BLKTODMAP(b, bmp->db_l2nbperpage);
+		mp = read_metapage(bmp->db_ipbmap, lblkno, PSIZE, 0);
+		if (mp == NULL) {
+			/* could not back out.  mark the file system
+			 * to indicate that we have leaked blocks.
+			 */
+			jfs_error(bmp->db_ipbmap->i_sb,
+				  "dbAllocCtl: I/O Error: Block Leakage.");
+			continue;
+		}
+		dp = (struct dmap *) mp->data;
+
+		/* free the blocks is this dmap.
+		 */
+		if (dbFreeDmap(bmp, dp, b, BPERDMAP)) {
+			/* could not back out.  mark the file system
+			 * to indicate that we have leaked blocks.
+			 */
+			release_metapage(mp);
+			jfs_error(bmp->db_ipbmap->i_sb,
+				  "dbAllocCtl: Block Leakage.");
+			continue;
+		}
+
+		/* write the buffer.
+		 */
+		write_metapage(mp);
+	}
+
+	return (rc);
+}
+
+
+/*
+ * NAME:	dbAllocDmapLev()
+ *
+ * FUNCTION:    attempt to allocate a specified number of contiguous blocks
+ *		from a specified dmap.
+ *		
+ *		this routine checks if the contiguous blocks are available.
+ *		if so, nblocks of blocks are allocated; otherwise, ENOSPC is
+ *		returned.
+ *
+ * PARAMETERS:
+ *      mp	-  pointer to bmap descriptor
+ *      dp	-  pointer to dmap to attempt to allocate blocks from. 
+ *      l2nb	-  log2 number of contiguous block desired.
+ *      nblocks	-  actual number of contiguous block desired.
+ *      results	-  on successful return, set to the starting block number
+ *		   of the newly allocated range.
+ *
+ * RETURN VALUES:
+ *      0	- success
+ *      -ENOSPC	- insufficient disk resources
+ *      -EIO	- i/o error
+ *
+ * serialization: IREAD_LOCK(ipbmap), e.g., from dbAlloc(), or 
+ *	IWRITE_LOCK(ipbmap), e.g., dbAllocCtl(), held on entry/exit;
+ */
+static int
+dbAllocDmapLev(struct bmap * bmp,
+	       struct dmap * dp, int nblocks, int l2nb, s64 * results)
+{
+	s64 blkno;
+	int leafidx, rc;
+
+	/* can't be more than a dmaps worth of blocks */
+	assert(l2nb <= L2BPERDMAP);
+
+	/* search the tree within the dmap page for sufficient
+	 * free space.  if sufficient free space is found, dbFindLeaf()
+	 * returns the index of the leaf at which free space was found.
+	 */
+	if (dbFindLeaf((dmtree_t *) & dp->tree, l2nb, &leafidx))
+		return -ENOSPC;
+
+	/* determine the block number within the file system corresponding
+	 * to the leaf at which free space was found.
+	 */
+	blkno = le64_to_cpu(dp->start) + (leafidx << L2DBWORD);
+
+	/* if not all bits of the dmap word are free, get the starting
+	 * bit number within the dmap word of the required string of free
+	 * bits and adjust the block number with this value.
+	 */
+	if (dp->tree.stree[leafidx + LEAFIND] < BUDMIN)
+		blkno += dbFindBits(le32_to_cpu(dp->wmap[leafidx]), l2nb);
+
+	/* allocate the blocks */
+	if ((rc = dbAllocDmap(bmp, dp, blkno, nblocks)) == 0)
+		*results = blkno;
+
+	return (rc);
+}
+
+
+/*
+ * NAME:	dbAllocDmap()
+ *
+ * FUNCTION:    adjust the disk allocation map to reflect the allocation
+ *		of a specified block range within a dmap.
+ *
+ *		this routine allocates the specified blocks from the dmap
+ *		through a call to dbAllocBits(). if the allocation of the
+ *		block range causes the maximum string of free blocks within
+ *		the dmap to change (i.e. the value of the root of the dmap's
+ *		dmtree), this routine will cause this change to be reflected
+ *		up through the appropriate levels of the dmap control pages
+ *		by a call to dbAdjCtl() for the L0 dmap control page that
+ *		covers this dmap.
+ *
+ * PARAMETERS:
+ *      bmp	-  pointer to bmap descriptor
+ *      dp	-  pointer to dmap to allocate the block range from.
+ *      blkno	-  starting block number of the block to be allocated.
+ *      nblocks	-  number of blocks to be allocated.
+ *
+ * RETURN VALUES:
+ *      0	- success
+ *      -EIO	- i/o error
+ *
+ * serialization: IREAD_LOCK(ipbmap) or IWRITE_LOCK(ipbmap) held on entry/exit;
+ */
+static int dbAllocDmap(struct bmap * bmp, struct dmap * dp, s64 blkno,
+		       int nblocks)
+{
+	s8 oldroot;
+	int rc;
+
+	/* save the current value of the root (i.e. maximum free string)
+	 * of the dmap tree.
+	 */
+	oldroot = dp->tree.stree[ROOT];
+
+	/* allocate the specified (blocks) bits */
+	dbAllocBits(bmp, dp, blkno, nblocks);
+
+	/* if the root has not changed, done. */
+	if (dp->tree.stree[ROOT] == oldroot)
+		return (0);
+
+	/* root changed. bubble the change up to the dmap control pages.
+	 * if the adjustment of the upper level control pages fails,
+	 * backout the bit allocation (thus making everything consistent).
+	 */
+	if ((rc = dbAdjCtl(bmp, blkno, dp->tree.stree[ROOT], 1, 0)))
+		dbFreeBits(bmp, dp, blkno, nblocks);
+
+	return (rc);
+}
+
+
+/*
+ * NAME:	dbFreeDmap()
+ *
+ * FUNCTION:    adjust the disk allocation map to reflect the allocation
+ *		of a specified block range within a dmap.
+ *
+ *		this routine frees the specified blocks from the dmap through
+ *		a call to dbFreeBits(). if the deallocation of the block range
+ *		causes the maximum string of free blocks within the dmap to
+ *		change (i.e. the value of the root of the dmap's dmtree), this
+ *		routine will cause this change to be reflected up through the
+ *	        appropriate levels of the dmap control pages by a call to
+ *		dbAdjCtl() for the L0 dmap control page that covers this dmap.
+ *
+ * PARAMETERS:
+ *      bmp	-  pointer to bmap descriptor
+ *      dp	-  pointer to dmap to free the block range from.
+ *      blkno	-  starting block number of the block to be freed.
+ *      nblocks	-  number of blocks to be freed.
+ *
+ * RETURN VALUES:
+ *      0	- success
+ *      -EIO	- i/o error
+ *
+ * serialization: IREAD_LOCK(ipbmap) or IWRITE_LOCK(ipbmap) held on entry/exit;
+ */
+static int dbFreeDmap(struct bmap * bmp, struct dmap * dp, s64 blkno,
+		      int nblocks)
+{
+	s8 oldroot;
+	int rc, word;
+
+	/* save the current value of the root (i.e. maximum free string)
+	 * of the dmap tree.
+	 */
+	oldroot = dp->tree.stree[ROOT];
+
+	/* free the specified (blocks) bits */
+	dbFreeBits(bmp, dp, blkno, nblocks);
+
+	/* if the root has not changed, done. */
+	if (dp->tree.stree[ROOT] == oldroot)
+		return (0);
+
+	/* root changed. bubble the change up to the dmap control pages.
+	 * if the adjustment of the upper level control pages fails,
+	 * backout the deallocation. 
+	 */
+	if ((rc = dbAdjCtl(bmp, blkno, dp->tree.stree[ROOT], 0, 0))) {
+		word = (blkno & (BPERDMAP - 1)) >> L2DBWORD;
+
+		/* as part of backing out the deallocation, we will have
+		 * to back split the dmap tree if the deallocation caused
+		 * the freed blocks to become part of a larger binary buddy
+		 * system.
+		 */
+		if (dp->tree.stree[word] == NOFREE)
+			dbBackSplit((dmtree_t *) & dp->tree, word);
+
+		dbAllocBits(bmp, dp, blkno, nblocks);
+	}
+
+	return (rc);
+}
+
+
+/*
+ * NAME:	dbAllocBits()
+ *
+ * FUNCTION:    allocate a specified block range from a dmap.
+ *
+ *		this routine updates the dmap to reflect the working
+ *		state allocation of the specified block range. it directly
+ *		updates the bits of the working map and causes the adjustment
+ *		of the binary buddy system described by the dmap's dmtree
+ *		leaves to reflect the bits allocated.  it also causes the
+ *		dmap's dmtree, as a whole, to reflect the allocated range.
+ *
+ * PARAMETERS:
+ *      bmp	-  pointer to bmap descriptor
+ *      dp	-  pointer to dmap to allocate bits from.
+ *      blkno	-  starting block number of the bits to be allocated.
+ *      nblocks	-  number of bits to be allocated.
+ *
+ * RETURN VALUES: none
+ *
+ * serialization: IREAD_LOCK(ipbmap) or IWRITE_LOCK(ipbmap) held on entry/exit;
+ */
+static void dbAllocBits(struct bmap * bmp, struct dmap * dp, s64 blkno,
+			int nblocks)
+{
+	int dbitno, word, rembits, nb, nwords, wbitno, nw, agno;
+	dmtree_t *tp = (dmtree_t *) & dp->tree;
+	int size;
+	s8 *leaf;
+
+	/* pick up a pointer to the leaves of the dmap tree */
+	leaf = dp->tree.stree + LEAFIND;
+
+	/* determine the bit number and word within the dmap of the
+	 * starting block.
+	 */
+	dbitno = blkno & (BPERDMAP - 1);
+	word = dbitno >> L2DBWORD;
+
+	/* block range better be within the dmap */
+	assert(dbitno + nblocks <= BPERDMAP);
+
+	/* allocate the bits of the dmap's words corresponding to the block
+	 * range. not all bits of the first and last words may be contained
+	 * within the block range.  if this is the case, we'll work against
+	 * those words (i.e. partial first and/or last) on an individual basis
+	 * (a single pass), allocating the bits of interest by hand and
+	 * updating the leaf corresponding to the dmap word. a single pass
+	 * will be used for all dmap words fully contained within the
+	 * specified range.  within this pass, the bits of all fully contained
+	 * dmap words will be marked as free in a single shot and the leaves
+	 * will be updated. a single leaf may describe the free space of
+	 * multiple dmap words, so we may update only a subset of the actual
+	 * leaves corresponding to the dmap words of the block range.
+	 */
+	for (rembits = nblocks; rembits > 0; rembits -= nb, dbitno += nb) {
+		/* determine the bit number within the word and
+		 * the number of bits within the word.
+		 */
+		wbitno = dbitno & (DBWORD - 1);
+		nb = min(rembits, DBWORD - wbitno);
+
+		/* check if only part of a word is to be allocated.
+		 */
+		if (nb < DBWORD) {
+			/* allocate (set to 1) the appropriate bits within
+			 * this dmap word.
+			 */
+			dp->wmap[word] |= cpu_to_le32(ONES << (DBWORD - nb)
+						      >> wbitno);
+
+			/* update the leaf for this dmap word. in addition
+			 * to setting the leaf value to the binary buddy max
+			 * of the updated dmap word, dbSplit() will split
+			 * the binary system of the leaves if need be.
+			 */
+			dbSplit(tp, word, BUDMIN,
+				dbMaxBud((u8 *) & dp->wmap[word]));
+
+			word += 1;
+		} else {
+			/* one or more dmap words are fully contained
+			 * within the block range.  determine how many
+			 * words and allocate (set to 1) the bits of these
+			 * words.
+			 */
+			nwords = rembits >> L2DBWORD;
+			memset(&dp->wmap[word], (int) ONES, nwords * 4);
+
+			/* determine how many bits.
+			 */
+			nb = nwords << L2DBWORD;
+
+			/* now update the appropriate leaves to reflect
+			 * the allocated words.
+			 */
+			for (; nwords > 0; nwords -= nw) {
+			        if (leaf[word] < BUDMIN) {
+					jfs_error(bmp->db_ipbmap->i_sb,
+						  "dbAllocBits: leaf page "
+						  "corrupt");
+					break;
+				}
+
+				/* determine what the leaf value should be
+				 * updated to as the minimum of the l2 number
+				 * of bits being allocated and the l2 number
+				 * of bits currently described by this leaf.
+				 */
+				size = min((int)leaf[word], NLSTOL2BSZ(nwords));
+
+				/* update the leaf to reflect the allocation.
+				 * in addition to setting the leaf value to
+				 * NOFREE, dbSplit() will split the binary
+				 * system of the leaves to reflect the current
+				 * allocation (size).
+				 */
+				dbSplit(tp, word, size, NOFREE);
+
+				/* get the number of dmap words handled */
+				nw = BUDSIZE(size, BUDMIN);
+				word += nw;
+			}
+		}
+	}
+
+	/* update the free count for this dmap */
+	dp->nfree = cpu_to_le32(le32_to_cpu(dp->nfree) - nblocks);
+
+	BMAP_LOCK(bmp);
+
+	/* if this allocation group is completely free,
+	 * update the maximum allocation group number if this allocation
+	 * group is the new max.
+	 */
+	agno = blkno >> bmp->db_agl2size;
+	if (agno > bmp->db_maxag)
+		bmp->db_maxag = agno;
+
+	/* update the free count for the allocation group and map */
+	bmp->db_agfree[agno] -= nblocks;
+	bmp->db_nfree -= nblocks;
+
+	BMAP_UNLOCK(bmp);
+}
+
+
+/*
+ * NAME:	dbFreeBits()
+ *
+ * FUNCTION:    free a specified block range from a dmap.
+ *
+ *		this routine updates the dmap to reflect the working
+ *		state allocation of the specified block range. it directly
+ *		updates the bits of the working map and causes the adjustment
+ *		of the binary buddy system described by the dmap's dmtree
+ *		leaves to reflect the bits freed.  it also causes the dmap's
+ *		dmtree, as a whole, to reflect the deallocated range.
+ *
+ * PARAMETERS:
+ *      bmp	-  pointer to bmap descriptor
+ *      dp	-  pointer to dmap to free bits from.
+ *      blkno	-  starting block number of the bits to be freed.
+ *      nblocks	-  number of bits to be freed.
+ *
+ * RETURN VALUES: none
+ *
+ * serialization: IREAD_LOCK(ipbmap) or IWRITE_LOCK(ipbmap) held on entry/exit;
+ */
+static void dbFreeBits(struct bmap * bmp, struct dmap * dp, s64 blkno,
+		       int nblocks)
+{
+	int dbitno, word, rembits, nb, nwords, wbitno, nw, agno;
+	dmtree_t *tp = (dmtree_t *) & dp->tree;
+	int size;
+
+	/* determine the bit number and word within the dmap of the
+	 * starting block.
+	 */
+	dbitno = blkno & (BPERDMAP - 1);
+	word = dbitno >> L2DBWORD;
+
+	/* block range better be within the dmap.
+	 */
+	assert(dbitno + nblocks <= BPERDMAP);
+
+	/* free the bits of the dmaps words corresponding to the block range.
+	 * not all bits of the first and last words may be contained within
+	 * the block range.  if this is the case, we'll work against those
+	 * words (i.e. partial first and/or last) on an individual basis
+	 * (a single pass), freeing the bits of interest by hand and updating
+	 * the leaf corresponding to the dmap word. a single pass will be used
+	 * for all dmap words fully contained within the specified range.  
+	 * within this pass, the bits of all fully contained dmap words will
+	 * be marked as free in a single shot and the leaves will be updated. a
+	 * single leaf may describe the free space of multiple dmap words,
+	 * so we may update only a subset of the actual leaves corresponding
+	 * to the dmap words of the block range.
+	 *
+	 * dbJoin() is used to update leaf values and will join the binary
+	 * buddy system of the leaves if the new leaf values indicate this
+	 * should be done.
+	 */
+	for (rembits = nblocks; rembits > 0; rembits -= nb, dbitno += nb) {
+		/* determine the bit number within the word and
+		 * the number of bits within the word.
+		 */
+		wbitno = dbitno & (DBWORD - 1);
+		nb = min(rembits, DBWORD - wbitno);
+
+		/* check if only part of a word is to be freed.
+		 */
+		if (nb < DBWORD) {
+			/* free (zero) the appropriate bits within this
+			 * dmap word. 
+			 */
+			dp->wmap[word] &=
+			    cpu_to_le32(~(ONES << (DBWORD - nb)
+					  >> wbitno));
+
+			/* update the leaf for this dmap word.
+			 */
+			dbJoin(tp, word,
+			       dbMaxBud((u8 *) & dp->wmap[word]));
+
+			word += 1;
+		} else {
+			/* one or more dmap words are fully contained
+			 * within the block range.  determine how many
+			 * words and free (zero) the bits of these words.
+			 */
+			nwords = rembits >> L2DBWORD;
+			memset(&dp->wmap[word], 0, nwords * 4);
+
+			/* determine how many bits.
+			 */
+			nb = nwords << L2DBWORD;
+
+			/* now update the appropriate leaves to reflect
+			 * the freed words.
+			 */
+			for (; nwords > 0; nwords -= nw) {
+				/* determine what the leaf value should be
+				 * updated to as the minimum of the l2 number
+				 * of bits being freed and the l2 (max) number
+				 * of bits that can be described by this leaf.
+				 */
+				size =
+				    min(LITOL2BSZ
+					(word, L2LPERDMAP, BUDMIN),
+					NLSTOL2BSZ(nwords));
+
+				/* update the leaf.
+				 */
+				dbJoin(tp, word, size);
+
+				/* get the number of dmap words handled.
+				 */
+				nw = BUDSIZE(size, BUDMIN);
+				word += nw;
+			}
+		}
+	}
+
+	/* update the free count for this dmap.
+	 */
+	dp->nfree = cpu_to_le32(le32_to_cpu(dp->nfree) + nblocks);
+
+	BMAP_LOCK(bmp);
+
+	/* update the free count for the allocation group and 
+	 * map.
+	 */
+	agno = blkno >> bmp->db_agl2size;
+	bmp->db_nfree += nblocks;
+	bmp->db_agfree[agno] += nblocks;
+
+	/* check if this allocation group is not completely free and
+	 * if it is currently the maximum (rightmost) allocation group.
+	 * if so, establish the new maximum allocation group number by
+	 * searching left for the first allocation group with allocation.
+	 */
+	if ((bmp->db_agfree[agno] == bmp->db_agsize && agno == bmp->db_maxag) ||
+	    (agno == bmp->db_numag - 1 &&
+	     bmp->db_agfree[agno] == (bmp-> db_mapsize & (BPERDMAP - 1)))) {
+		while (bmp->db_maxag > 0) {
+			bmp->db_maxag -= 1;
+			if (bmp->db_agfree[bmp->db_maxag] !=
+			    bmp->db_agsize)
+				break;
+		}
+
+		/* re-establish the allocation group preference if the
+		 * current preference is right of the maximum allocation
+		 * group.
+		 */
+		if (bmp->db_agpref > bmp->db_maxag)
+			bmp->db_agpref = bmp->db_maxag;
+	}
+
+	BMAP_UNLOCK(bmp);
+}
+
+
+/*
+ * NAME:	dbAdjCtl()
+ *
+ * FUNCTION:	adjust a dmap control page at a specified level to reflect
+ *		the change in a lower level dmap or dmap control page's
+ *		maximum string of free blocks (i.e. a change in the root
+ *		of the lower level object's dmtree) due to the allocation
+ *		or deallocation of a range of blocks with a single dmap.
+ *
+ *		on entry, this routine is provided with the new value of
+ *		the lower level dmap or dmap control page root and the
+ *		starting block number of the block range whose allocation
+ *		or deallocation resulted in the root change.  this range
+ *		is respresented by a single leaf of the current dmapctl
+ *		and the leaf will be updated with this value, possibly
+ *		causing a binary buddy system within the leaves to be 
+ *		split or joined.  the update may also cause the dmapctl's
+ *		dmtree to be updated.
+ *
+ *		if the adjustment of the dmap control page, itself, causes its
+ *		root to change, this change will be bubbled up to the next dmap
+ *		control level by a recursive call to this routine, specifying
+ *		the new root value and the next dmap control page level to
+ *		be adjusted.
+ * PARAMETERS:
+ *      bmp	-  pointer to bmap descriptor
+ *      blkno	-  the first block of a block range within a dmap.  it is
+ *		   the allocation or deallocation of this block range that
+ *		   requires the dmap control page to be adjusted.
+ *      newval	-  the new value of the lower level dmap or dmap control
+ *		   page root.
+ *      alloc	-  TRUE if adjustment is due to an allocation.
+ *      level	-  current level of dmap control page (i.e. L0, L1, L2) to
+ *		   be adjusted.
+ *
+ * RETURN VALUES:
+ *      0	- success
+ *      -EIO	- i/o error
+ *
+ * serialization: IREAD_LOCK(ipbmap) or IWRITE_LOCK(ipbmap) held on entry/exit;
+ */
+static int
+dbAdjCtl(struct bmap * bmp, s64 blkno, int newval, int alloc, int level)
+{
+	struct metapage *mp;
+	s8 oldroot;
+	int oldval;
+	s64 lblkno;
+	struct dmapctl *dcp;
+	int rc, leafno, ti;
+
+	/* get the buffer for the dmap control page for the specified
+	 * block number and control page level.
+	 */
+	lblkno = BLKTOCTL(blkno, bmp->db_l2nbperpage, level);
+	mp = read_metapage(bmp->db_ipbmap, lblkno, PSIZE, 0);
+	if (mp == NULL)
+		return -EIO;
+	dcp = (struct dmapctl *) mp->data;
+
+	if (dcp->leafidx != cpu_to_le32(CTLLEAFIND)) {
+		jfs_error(bmp->db_ipbmap->i_sb,
+			  "dbAdjCtl: Corrupt dmapctl page");
+		release_metapage(mp);
+		return -EIO;
+	}
+
+	/* determine the leaf number corresponding to the block and
+	 * the index within the dmap control tree.
+	 */
+	leafno = BLKTOCTLLEAF(blkno, dcp->budmin);
+	ti = leafno + le32_to_cpu(dcp->leafidx);
+
+	/* save the current leaf value and the current root level (i.e.
+	 * maximum l2 free string described by this dmapctl).
+	 */
+	oldval = dcp->stree[ti];
+	oldroot = dcp->stree[ROOT];
+
+	/* check if this is a control page update for an allocation.
+	 * if so, update the leaf to reflect the new leaf value using
+	 * dbSplit(); otherwise (deallocation), use dbJoin() to udpate
+	 * the leaf with the new value.  in addition to updating the
+	 * leaf, dbSplit() will also split the binary buddy system of
+	 * the leaves, if required, and bubble new values within the
+	 * dmapctl tree, if required.  similarly, dbJoin() will join
+	 * the binary buddy system of leaves and bubble new values up
+	 * the dmapctl tree as required by the new leaf value.
+	 */
+	if (alloc) {
+		/* check if we are in the middle of a binary buddy
+		 * system.  this happens when we are performing the
+		 * first allocation out of an allocation group that
+		 * is part (not the first part) of a larger binary
+		 * buddy system.  if we are in the middle, back split
+		 * the system prior to calling dbSplit() which assumes
+		 * that it is at the front of a binary buddy system.
+		 */
+		if (oldval == NOFREE) {
+			dbBackSplit((dmtree_t *) dcp, leafno);
+			oldval = dcp->stree[ti];
+		}
+		dbSplit((dmtree_t *) dcp, leafno, dcp->budmin, newval);
+	} else {
+		dbJoin((dmtree_t *) dcp, leafno, newval);
+	}
+
+	/* check if the root of the current dmap control page changed due
+	 * to the update and if the current dmap control page is not at
+	 * the current top level (i.e. L0, L1, L2) of the map.  if so (i.e.
+	 * root changed and this is not the top level), call this routine
+	 * again (recursion) for the next higher level of the mapping to
+	 * reflect the change in root for the current dmap control page.
+	 */
+	if (dcp->stree[ROOT] != oldroot) {
+		/* are we below the top level of the map.  if so,
+		 * bubble the root up to the next higher level.
+		 */
+		if (level < bmp->db_maxlevel) {
+			/* bubble up the new root of this dmap control page to
+			 * the next level.
+			 */
+			if ((rc =
+			     dbAdjCtl(bmp, blkno, dcp->stree[ROOT], alloc,
+				      level + 1))) {
+				/* something went wrong in bubbling up the new
+				 * root value, so backout the changes to the
+				 * current dmap control page.
+				 */
+				if (alloc) {
+					dbJoin((dmtree_t *) dcp, leafno,
+					       oldval);
+				} else {
+					/* the dbJoin() above might have
+					 * caused a larger binary buddy system
+					 * to form and we may now be in the
+					 * middle of it.  if this is the case,
+					 * back split the buddies.
+					 */
+					if (dcp->stree[ti] == NOFREE)
+						dbBackSplit((dmtree_t *)
+							    dcp, leafno);
+					dbSplit((dmtree_t *) dcp, leafno,
+						dcp->budmin, oldval);
+				}
+
+				/* release the buffer and return the error.
+				 */
+				release_metapage(mp);
+				return (rc);
+			}
+		} else {
+			/* we're at the top level of the map. update
+			 * the bmap control page to reflect the size
+			 * of the maximum free buddy system.
+			 */
+			assert(level == bmp->db_maxlevel);
+			if (bmp->db_maxfreebud != oldroot) {
+				jfs_error(bmp->db_ipbmap->i_sb,
+					  "dbAdjCtl: the maximum free buddy is "
+					  "not the old root");
+			}
+			bmp->db_maxfreebud = dcp->stree[ROOT];
+		}
+	}
+
+	/* write the buffer.
+	 */
+	write_metapage(mp);
+
+	return (0);
+}
+
+
+/*
+ * NAME:	dbSplit()
+ *
+ * FUNCTION:    update the leaf of a dmtree with a new value, splitting
+ *		the leaf from the binary buddy system of the dmtree's
+ *		leaves, as required.
+ *
+ * PARAMETERS:
+ *      tp	- pointer to the tree containing the leaf.
+ *      leafno	- the number of the leaf to be updated.
+ *      splitsz	- the size the binary buddy system starting at the leaf
+ *		  must be split to, specified as the log2 number of blocks.
+ *      newval	- the new value for the leaf.
+ *
+ * RETURN VALUES: none
+ *
+ * serialization: IREAD_LOCK(ipbmap) or IWRITE_LOCK(ipbmap) held on entry/exit;
+ */
+static void dbSplit(dmtree_t * tp, int leafno, int splitsz, int newval)
+{
+	int budsz;
+	int cursz;
+	s8 *leaf = tp->dmt_stree + le32_to_cpu(tp->dmt_leafidx);
+
+	/* check if the leaf needs to be split.
+	 */
+	if (leaf[leafno] > tp->dmt_budmin) {
+		/* the split occurs by cutting the buddy system in half
+		 * at the specified leaf until we reach the specified
+		 * size.  pick up the starting split size (current size
+		 * - 1 in l2) and the corresponding buddy size.
+		 */
+		cursz = leaf[leafno] - 1;
+		budsz = BUDSIZE(cursz, tp->dmt_budmin);
+
+		/* split until we reach the specified size.
+		 */
+		while (cursz >= splitsz) {
+			/* update the buddy's leaf with its new value.
+			 */
+			dbAdjTree(tp, leafno ^ budsz, cursz);
+
+			/* on to the next size and buddy.
+			 */
+			cursz -= 1;
+			budsz >>= 1;
+		}
+	}
+
+	/* adjust the dmap tree to reflect the specified leaf's new 
+	 * value.
+	 */
+	dbAdjTree(tp, leafno, newval);
+}
+
+
+/*
+ * NAME:	dbBackSplit()
+ *
+ * FUNCTION:    back split the binary buddy system of dmtree leaves
+ *		that hold a specified leaf until the specified leaf
+ *		starts its own binary buddy system.
+ *
+ *		the allocators typically perform allocations at the start
+ *		of binary buddy systems and dbSplit() is used to accomplish
+ *		any required splits.  in some cases, however, allocation
+ *		may occur in the middle of a binary system and requires a
+ *		back split, with the split proceeding out from the middle of
+ *		the system (less efficient) rather than the start of the
+ *		system (more efficient).  the cases in which a back split
+ *		is required are rare and are limited to the first allocation
+ *		within an allocation group which is a part (not first part)
+ *		of a larger binary buddy system and a few exception cases
+ *		in which a previous join operation must be backed out.
+ *
+ * PARAMETERS:
+ *      tp	- pointer to the tree containing the leaf.
+ *      leafno	- the number of the leaf to be updated.
+ *
+ * RETURN VALUES: none
+ *
+ * serialization: IREAD_LOCK(ipbmap) or IWRITE_LOCK(ipbmap) held on entry/exit;
+ */
+static void dbBackSplit(dmtree_t * tp, int leafno)
+{
+	int budsz, bud, w, bsz, size;
+	int cursz;
+	s8 *leaf = tp->dmt_stree + le32_to_cpu(tp->dmt_leafidx);
+
+	/* leaf should be part (not first part) of a binary
+	 * buddy system.
+	 */
+	assert(leaf[leafno] == NOFREE);
+
+	/* the back split is accomplished by iteratively finding the leaf
+	 * that starts the buddy system that contains the specified leaf and
+	 * splitting that system in two.  this iteration continues until
+	 * the specified leaf becomes the start of a buddy system. 
+	 *
+	 * determine maximum possible l2 size for the specified leaf.
+	 */
+	size =
+	    LITOL2BSZ(leafno, le32_to_cpu(tp->dmt_l2nleafs),
+		      tp->dmt_budmin);
+
+	/* determine the number of leaves covered by this size.  this
+	 * is the buddy size that we will start with as we search for
+	 * the buddy system that contains the specified leaf.
+	 */
+	budsz = BUDSIZE(size, tp->dmt_budmin);
+
+	/* back split.
+	 */
+	while (leaf[leafno] == NOFREE) {
+		/* find the leftmost buddy leaf.
+		 */
+		for (w = leafno, bsz = budsz;; bsz <<= 1,
+		     w = (w < bud) ? w : bud) {
+			assert(bsz < le32_to_cpu(tp->dmt_nleafs));
+
+			/* determine the buddy.
+			 */
+			bud = w ^ bsz;
+
+			/* check if this buddy is the start of the system.
+			 */
+			if (leaf[bud] != NOFREE) {
+				/* split the leaf at the start of the
+				 * system in two.
+				 */
+				cursz = leaf[bud] - 1;
+				dbSplit(tp, bud, cursz, cursz);
+				break;
+			}
+		}
+	}
+
+	assert(leaf[leafno] == size);
+}
+
+
+/*
+ * NAME:	dbJoin()
+ *
+ * FUNCTION:    update the leaf of a dmtree with a new value, joining
+ *		the leaf with other leaves of the dmtree into a multi-leaf
+ *		binary buddy system, as required.
+ *
+ * PARAMETERS:
+ *      tp	- pointer to the tree containing the leaf.
+ *      leafno	- the number of the leaf to be updated.
+ *      newval	- the new value for the leaf.
+ *
+ * RETURN VALUES: none
+ */
+static void dbJoin(dmtree_t * tp, int leafno, int newval)
+{
+	int budsz, buddy;
+	s8 *leaf;
+
+	/* can the new leaf value require a join with other leaves ?
+	 */
+	if (newval >= tp->dmt_budmin) {
+		/* pickup a pointer to the leaves of the tree.
+		 */
+		leaf = tp->dmt_stree + le32_to_cpu(tp->dmt_leafidx);
+
+		/* try to join the specified leaf into a large binary
+		 * buddy system.  the join proceeds by attempting to join
+		 * the specified leafno with its buddy (leaf) at new value.
+		 * if the join occurs, we attempt to join the left leaf
+		 * of the joined buddies with its buddy at new value + 1.
+		 * we continue to join until we find a buddy that cannot be
+		 * joined (does not have a value equal to the size of the
+		 * last join) or until all leaves have been joined into a
+		 * single system.
+		 *
+		 * get the buddy size (number of words covered) of
+		 * the new value.
+		 */
+		budsz = BUDSIZE(newval, tp->dmt_budmin);
+
+		/* try to join.
+		 */
+		while (budsz < le32_to_cpu(tp->dmt_nleafs)) {
+			/* get the buddy leaf.
+			 */
+			buddy = leafno ^ budsz;
+
+			/* if the leaf's new value is greater than its
+			 * buddy's value, we join no more.
+			 */
+			if (newval > leaf[buddy])
+				break;
+
+			assert(newval == leaf[buddy]);
+
+			/* check which (leafno or buddy) is the left buddy.
+			 * the left buddy gets to claim the blocks resulting
+			 * from the join while the right gets to claim none.
+			 * the left buddy is also eligable to participate in
+			 * a join at the next higher level while the right
+			 * is not.
+			 *
+			 */
+			if (leafno < buddy) {
+				/* leafno is the left buddy.
+				 */
+				dbAdjTree(tp, buddy, NOFREE);
+			} else {
+				/* buddy is the left buddy and becomes
+				 * leafno.
+				 */
+				dbAdjTree(tp, leafno, NOFREE);
+				leafno = buddy;
+			}
+
+			/* on to try the next join.
+			 */
+			newval += 1;
+			budsz <<= 1;
+		}
+	}
+
+	/* update the leaf value.
+	 */
+	dbAdjTree(tp, leafno, newval);
+}
+
+
+/*
+ * NAME:	dbAdjTree()
+ *
+ * FUNCTION:    update a leaf of a dmtree with a new value, adjusting
+ *		the dmtree, as required, to reflect the new leaf value.
+ *		the combination of any buddies must already be done before
+ *		this is called.
+ *
+ * PARAMETERS:
+ *      tp	- pointer to the tree to be adjusted.
+ *      leafno	- the number of the leaf to be updated.
+ *      newval	- the new value for the leaf.
+ *
+ * RETURN VALUES: none
+ */
+static void dbAdjTree(dmtree_t * tp, int leafno, int newval)
+{
+	int lp, pp, k;
+	int max;
+
+	/* pick up the index of the leaf for this leafno.
+	 */
+	lp = leafno + le32_to_cpu(tp->dmt_leafidx);
+
+	/* is the current value the same as the old value ?  if so,
+	 * there is nothing to do.
+	 */
+	if (tp->dmt_stree[lp] == newval)
+		return;
+
+	/* set the new value.
+	 */
+	tp->dmt_stree[lp] = newval;
+
+	/* bubble the new value up the tree as required.
+	 */
+	for (k = 0; k < le32_to_cpu(tp->dmt_height); k++) {
+		/* get the index of the first leaf of the 4 leaf
+		 * group containing the specified leaf (leafno).
+		 */
+		lp = ((lp - 1) & ~0x03) + 1;
+
+		/* get the index of the parent of this 4 leaf group.
+		 */
+		pp = (lp - 1) >> 2;
+
+		/* determine the maximum of the 4 leaves.
+		 */
+		max = TREEMAX(&tp->dmt_stree[lp]);
+
+		/* if the maximum of the 4 is the same as the
+		 * parent's value, we're done.
+		 */
+		if (tp->dmt_stree[pp] == max)
+			break;
+
+		/* parent gets new value.
+		 */
+		tp->dmt_stree[pp] = max;
+
+		/* parent becomes leaf for next go-round.
+		 */
+		lp = pp;
+	}
+}
+
+
+/*
+ * NAME:	dbFindLeaf()
+ *
+ * FUNCTION:    search a dmtree_t for sufficient free blocks, returning
+ *		the index of a leaf describing the free blocks if 
+ *		sufficient free blocks are found.
+ *
+ *		the search starts at the top of the dmtree_t tree and
+ *		proceeds down the tree to the leftmost leaf with sufficient
+ *		free space.
+ *
+ * PARAMETERS:
+ *      tp	- pointer to the tree to be searched.
+ *      l2nb	- log2 number of free blocks to search for.
+ *	leafidx	- return pointer to be set to the index of the leaf
+ *		  describing at least l2nb free blocks if sufficient
+ *		  free blocks are found.
+ *
+ * RETURN VALUES:
+ *      0	- success
+ *      -ENOSPC	- insufficient free blocks. 
+ */
+static int dbFindLeaf(dmtree_t * tp, int l2nb, int *leafidx)
+{
+	int ti, n = 0, k, x = 0;
+
+	/* first check the root of the tree to see if there is
+	 * sufficient free space.
+	 */
+	if (l2nb > tp->dmt_stree[ROOT])
+		return -ENOSPC;
+
+	/* sufficient free space available. now search down the tree
+	 * starting at the next level for the leftmost leaf that
+	 * describes sufficient free space.
+	 */
+	for (k = le32_to_cpu(tp->dmt_height), ti = 1;
+	     k > 0; k--, ti = ((ti + n) << 2) + 1) {
+		/* search the four nodes at this level, starting from
+		 * the left.
+		 */
+		for (x = ti, n = 0; n < 4; n++) {
+			/* sufficient free space found.  move to the next
+			 * level (or quit if this is the last level).
+			 */
+			if (l2nb <= tp->dmt_stree[x + n])
+				break;
+		}
+
+		/* better have found something since the higher
+		 * levels of the tree said it was here.
+		 */
+		assert(n < 4);
+	}
+
+	/* set the return to the leftmost leaf describing sufficient
+	 * free space.
+	 */
+	*leafidx = x + n - le32_to_cpu(tp->dmt_leafidx);
+
+	return (0);
+}
+
+
+/*
+ * NAME:	dbFindBits()
+ *
+ * FUNCTION:    find a specified number of binary buddy free bits within a
+ *		dmap bitmap word value.
+ *
+ *		this routine searches the bitmap value for (1 << l2nb) free
+ *		bits at (1 << l2nb) alignments within the value.
+ *
+ * PARAMETERS:
+ *      word	-  dmap bitmap word value.
+ *      l2nb	-  number of free bits specified as a log2 number.
+ *
+ * RETURN VALUES:
+ *      starting bit number of free bits.
+ */
+static int dbFindBits(u32 word, int l2nb)
+{
+	int bitno, nb;
+	u32 mask;
+
+	/* get the number of bits.
+	 */
+	nb = 1 << l2nb;
+	assert(nb <= DBWORD);
+
+	/* complement the word so we can use a mask (i.e. 0s represent
+	 * free bits) and compute the mask.
+	 */
+	word = ~word;
+	mask = ONES << (DBWORD - nb);
+
+	/* scan the word for nb free bits at nb alignments.
+	 */
+	for (bitno = 0; mask != 0; bitno += nb, mask >>= nb) {
+		if ((mask & word) == mask)
+			break;
+	}
+
+	ASSERT(bitno < 32);
+
+	/* return the bit number.
+	 */
+	return (bitno);
+}
+
+
+/*
+ * NAME:	dbMaxBud(u8 *cp)
+ *
+ * FUNCTION:    determine the largest binary buddy string of free
+ *		bits within 32-bits of the map.
+ *
+ * PARAMETERS:
+ *      cp	-  pointer to the 32-bit value.
+ *
+ * RETURN VALUES:
+ *      largest binary buddy of free bits within a dmap word.
+ */
+static int dbMaxBud(u8 * cp)
+{
+	signed char tmp1, tmp2;
+
+	/* check if the wmap word is all free. if so, the
+	 * free buddy size is BUDMIN.
+	 */
+	if (*((uint *) cp) == 0)
+		return (BUDMIN);
+
+	/* check if the wmap word is half free. if so, the
+	 * free buddy size is BUDMIN-1.
+	 */
+	if (*((u16 *) cp) == 0 || *((u16 *) cp + 1) == 0)
+		return (BUDMIN - 1);
+
+	/* not all free or half free. determine the free buddy
+	 * size thru table lookup using quarters of the wmap word.
+	 */
+	tmp1 = max(budtab[cp[2]], budtab[cp[3]]);
+	tmp2 = max(budtab[cp[0]], budtab[cp[1]]);
+	return (max(tmp1, tmp2));
+}
+
+
+/*
+ * NAME:	cnttz(uint word)
+ *
+ * FUNCTION:    determine the number of trailing zeros within a 32-bit
+ *		value.
+ *
+ * PARAMETERS:
+ *      value	-  32-bit value to be examined.
+ *
+ * RETURN VALUES:
+ *      count of trailing zeros
+ */
+static int cnttz(u32 word)
+{
+	int n;
+
+	for (n = 0; n < 32; n++, word >>= 1) {
+		if (word & 0x01)
+			break;
+	}
+
+	return (n);
+}
+
+
+/*
+ * NAME:	cntlz(u32 value)
+ *
+ * FUNCTION:    determine the number of leading zeros within a 32-bit
+ *		value.
+ *
+ * PARAMETERS:
+ *      value	-  32-bit value to be examined.
+ *
+ * RETURN VALUES:
+ *      count of leading zeros
+ */
+static int cntlz(u32 value)
+{
+	int n;
+
+	for (n = 0; n < 32; n++, value <<= 1) {
+		if (value & HIGHORDER)
+			break;
+	}
+	return (n);
+}
+
+
+/*
+ * NAME:	blkstol2(s64 nb)
+ *
+ * FUNCTION:	convert a block count to its log2 value. if the block
+ *	        count is not a l2 multiple, it is rounded up to the next
+ *		larger l2 multiple.
+ *
+ * PARAMETERS:
+ *      nb	-  number of blocks
+ *
+ * RETURN VALUES:
+ *      log2 number of blocks
+ */
+int blkstol2(s64 nb)
+{
+	int l2nb;
+	s64 mask;		/* meant to be signed */
+
+	mask = (s64) 1 << (64 - 1);
+
+	/* count the leading bits.
+	 */
+	for (l2nb = 0; l2nb < 64; l2nb++, mask >>= 1) {
+		/* leading bit found.
+		 */
+		if (nb & mask) {
+			/* determine the l2 value.
+			 */
+			l2nb = (64 - 1) - l2nb;
+
+			/* check if we need to round up.
+			 */
+			if (~mask & nb)
+				l2nb++;
+
+			return (l2nb);
+		}
+	}
+	assert(0);
+	return 0;		/* fix compiler warning */
+}
+
+
+/*
+ * NAME:    	dbAllocBottomUp()
+ *
+ * FUNCTION:	alloc the specified block range from the working block
+ *		allocation map.
+ *
+ *		the blocks will be alloc from the working map one dmap
+ *		at a time.
+ *
+ * PARAMETERS:
+ *      ip	-  pointer to in-core inode;
+ *      blkno	-  starting block number to be freed.
+ *      nblocks	-  number of blocks to be freed.
+ *
+ * RETURN VALUES:
+ *      0	- success
+ *      -EIO	- i/o error
+ */
+int dbAllocBottomUp(struct inode *ip, s64 blkno, s64 nblocks)
+{
+	struct metapage *mp;
+	struct dmap *dp;
+	int nb, rc;
+	s64 lblkno, rem;
+	struct inode *ipbmap = JFS_SBI(ip->i_sb)->ipbmap;
+	struct bmap *bmp = JFS_SBI(ip->i_sb)->bmap;
+
+	IREAD_LOCK(ipbmap);
+
+	/* block to be allocated better be within the mapsize. */
+	ASSERT(nblocks <= bmp->db_mapsize - blkno);
+
+	/*
+	 * allocate the blocks a dmap at a time.
+	 */
+	mp = NULL;
+	for (rem = nblocks; rem > 0; rem -= nb, blkno += nb) {
+		/* release previous dmap if any */
+		if (mp) {
+			write_metapage(mp);
+		}
+
+		/* get the buffer for the current dmap. */
+		lblkno = BLKTODMAP(blkno, bmp->db_l2nbperpage);
+		mp = read_metapage(ipbmap, lblkno, PSIZE, 0);
+		if (mp == NULL) {
+			IREAD_UNLOCK(ipbmap);
+			return -EIO;
+		}
+		dp = (struct dmap *) mp->data;
+
+		/* determine the number of blocks to be allocated from
+		 * this dmap.
+		 */
+		nb = min(rem, BPERDMAP - (blkno & (BPERDMAP - 1)));
+
+		DBFREECK(bmp->db_DBmap, bmp->db_mapsize, blkno, nb);
+
+		/* allocate the blocks. */
+		if ((rc = dbAllocDmapBU(bmp, dp, blkno, nb))) {
+			release_metapage(mp);
+			IREAD_UNLOCK(ipbmap);
+			return (rc);
+		}
+
+		DBALLOC(bmp->db_DBmap, bmp->db_mapsize, blkno, nb);
+	}
+
+	/* write the last buffer. */
+	write_metapage(mp);
+
+	IREAD_UNLOCK(ipbmap);
+
+	return (0);
+}
+
+
+static int dbAllocDmapBU(struct bmap * bmp, struct dmap * dp, s64 blkno,
+			 int nblocks)
+{
+	int rc;
+	int dbitno, word, rembits, nb, nwords, wbitno, agno;
+	s8 oldroot, *leaf;
+	struct dmaptree *tp = (struct dmaptree *) & dp->tree;
+
+	/* save the current value of the root (i.e. maximum free string)
+	 * of the dmap tree.
+	 */
+	oldroot = tp->stree[ROOT];
+
+	/* pick up a pointer to the leaves of the dmap tree */
+	leaf = tp->stree + LEAFIND;
+
+	/* determine the bit number and word within the dmap of the
+	 * starting block.
+	 */
+	dbitno = blkno & (BPERDMAP - 1);
+	word = dbitno >> L2DBWORD;
+
+	/* block range better be within the dmap */
+	assert(dbitno + nblocks <= BPERDMAP);
+
+	/* allocate the bits of the dmap's words corresponding to the block
+	 * range. not all bits of the first and last words may be contained
+	 * within the block range.  if this is the case, we'll work against
+	 * those words (i.e. partial first and/or last) on an individual basis
+	 * (a single pass), allocating the bits of interest by hand and
+	 * updating the leaf corresponding to the dmap word. a single pass
+	 * will be used for all dmap words fully contained within the
+	 * specified range.  within this pass, the bits of all fully contained
+	 * dmap words will be marked as free in a single shot and the leaves
+	 * will be updated. a single leaf may describe the free space of
+	 * multiple dmap words, so we may update only a subset of the actual
+	 * leaves corresponding to the dmap words of the block range.
+	 */
+	for (rembits = nblocks; rembits > 0; rembits -= nb, dbitno += nb) {
+		/* determine the bit number within the word and
+		 * the number of bits within the word.
+		 */
+		wbitno = dbitno & (DBWORD - 1);
+		nb = min(rembits, DBWORD - wbitno);
+
+		/* check if only part of a word is to be allocated.
+		 */
+		if (nb < DBWORD) {
+			/* allocate (set to 1) the appropriate bits within
+			 * this dmap word.
+			 */
+			dp->wmap[word] |= cpu_to_le32(ONES << (DBWORD - nb)
+						      >> wbitno);
+
+			word++;
+		} else {
+			/* one or more dmap words are fully contained
+			 * within the block range.  determine how many
+			 * words and allocate (set to 1) the bits of these
+			 * words.
+			 */
+			nwords = rembits >> L2DBWORD;
+			memset(&dp->wmap[word], (int) ONES, nwords * 4);
+
+			/* determine how many bits */
+			nb = nwords << L2DBWORD;
+			word += nwords;
+		}
+	}
+
+	/* update the free count for this dmap */
+	dp->nfree = cpu_to_le32(le32_to_cpu(dp->nfree) - nblocks);
+
+	/* reconstruct summary tree */
+	dbInitDmapTree(dp);
+
+	BMAP_LOCK(bmp);
+
+	/* if this allocation group is completely free,
+	 * update the highest active allocation group number 
+	 * if this allocation group is the new max.
+	 */
+	agno = blkno >> bmp->db_agl2size;
+	if (agno > bmp->db_maxag)
+		bmp->db_maxag = agno;
+
+	/* update the free count for the allocation group and map */
+	bmp->db_agfree[agno] -= nblocks;
+	bmp->db_nfree -= nblocks;
+
+	BMAP_UNLOCK(bmp);
+
+	/* if the root has not changed, done. */
+	if (tp->stree[ROOT] == oldroot)
+		return (0);
+
+	/* root changed. bubble the change up to the dmap control pages.
+	 * if the adjustment of the upper level control pages fails,
+	 * backout the bit allocation (thus making everything consistent).
+	 */
+	if ((rc = dbAdjCtl(bmp, blkno, tp->stree[ROOT], 1, 0)))
+		dbFreeBits(bmp, dp, blkno, nblocks);
+
+	return (rc);
+}
+
+
+/*
+ * NAME:	dbExtendFS()
+ *
+ * FUNCTION:	extend bmap from blkno for nblocks;
+ * 		dbExtendFS() updates bmap ready for dbAllocBottomUp();
+ *
+ * L2
+ *  |
+ *   L1---------------------------------L1
+ *    |                                  |
+ *     L0---------L0---------L0           L0---------L0---------L0
+ *      |          |          |            |          |          |
+ *       d0,...,dn  d0,...,dn  d0,...,dn    d0,...,dn  d0,...,dn  d0,.,dm;
+ * L2L1L0d0,...,dnL0d0,...,dnL0d0,...,dnL1L0d0,...,dnL0d0,...,dnL0d0,..dm
+ *
+ * <---old---><----------------------------extend----------------------->   
+ */
+int dbExtendFS(struct inode *ipbmap, s64 blkno,	s64 nblocks)
+{
+	struct jfs_sb_info *sbi = JFS_SBI(ipbmap->i_sb);
+	int nbperpage = sbi->nbperpage;
+	int i, i0 = TRUE, j, j0 = TRUE, k, n;
+	s64 newsize;
+	s64 p;
+	struct metapage *mp, *l2mp, *l1mp = NULL, *l0mp = NULL;
+	struct dmapctl *l2dcp, *l1dcp, *l0dcp;
+	struct dmap *dp;
+	s8 *l0leaf, *l1leaf, *l2leaf;
+	struct bmap *bmp = sbi->bmap;
+	int agno, l2agsize, oldl2agsize;
+	s64 ag_rem;
+
+	newsize = blkno + nblocks;
+
+	jfs_info("dbExtendFS: blkno:%Ld nblocks:%Ld newsize:%Ld",
+		 (long long) blkno, (long long) nblocks, (long long) newsize);
+
+	/*
+	 *      initialize bmap control page.
+	 *
+	 * all the data in bmap control page should exclude
+	 * the mkfs hidden dmap page.
+	 */
+
+	/* update mapsize */
+	bmp->db_mapsize = newsize;
+	bmp->db_maxlevel = BMAPSZTOLEV(bmp->db_mapsize);
+
+	/* compute new AG size */
+	l2agsize = dbGetL2AGSize(newsize);
+	oldl2agsize = bmp->db_agl2size;
+
+	bmp->db_agl2size = l2agsize;
+	bmp->db_agsize = 1 << l2agsize;
+
+	/* compute new number of AG */
+	agno = bmp->db_numag;
+	bmp->db_numag = newsize >> l2agsize;
+	bmp->db_numag += ((u32) newsize % (u32) bmp->db_agsize) ? 1 : 0;
+
+	/*
+	 *      reconfigure db_agfree[] 
+	 * from old AG configuration to new AG configuration;
+	 *
+	 * coalesce contiguous k (newAGSize/oldAGSize) AGs;
+	 * i.e., (AGi, ..., AGj) where i = k*n and j = k*(n+1) - 1 to AGn;
+	 * note: new AG size = old AG size * (2**x).
+	 */
+	if (l2agsize == oldl2agsize)
+		goto extend;
+	k = 1 << (l2agsize - oldl2agsize);
+	ag_rem = bmp->db_agfree[0];	/* save agfree[0] */
+	for (i = 0, n = 0; i < agno; n++) {
+		bmp->db_agfree[n] = 0;	/* init collection point */
+
+		/* coalesce cotiguous k AGs; */
+		for (j = 0; j < k && i < agno; j++, i++) {
+			/* merge AGi to AGn */
+			bmp->db_agfree[n] += bmp->db_agfree[i];
+		}
+	}
+	bmp->db_agfree[0] += ag_rem;	/* restore agfree[0] */
+
+	for (; n < MAXAG; n++)
+		bmp->db_agfree[n] = 0;
+
+	/*
+	 * update highest active ag number
+	 */
+
+	bmp->db_maxag = bmp->db_maxag / k;
+
+	/*
+	 *      extend bmap
+	 *
+	 * update bit maps and corresponding level control pages;
+	 * global control page db_nfree, db_agfree[agno], db_maxfreebud;
+	 */
+      extend:
+	/* get L2 page */
+	p = BMAPBLKNO + nbperpage;	/* L2 page */
+	l2mp = read_metapage(ipbmap, p, PSIZE, 0);
+	if (!l2mp) {
+		jfs_error(ipbmap->i_sb, "dbExtendFS: L2 page could not be read");
+		return -EIO;
+	}
+	l2dcp = (struct dmapctl *) l2mp->data;
+
+	/* compute start L1 */
+	k = blkno >> L2MAXL1SIZE;
+	l2leaf = l2dcp->stree + CTLLEAFIND + k;
+	p = BLKTOL1(blkno, sbi->l2nbperpage);	/* L1 page */
+
+	/*
+	 * extend each L1 in L2
+	 */
+	for (; k < LPERCTL; k++, p += nbperpage) {
+		/* get L1 page */
+		if (j0) {
+			/* read in L1 page: (blkno & (MAXL1SIZE - 1)) */
+			l1mp = read_metapage(ipbmap, p, PSIZE, 0);
+			if (l1mp == NULL)
+				goto errout;
+			l1dcp = (struct dmapctl *) l1mp->data;
+
+			/* compute start L0 */
+			j = (blkno & (MAXL1SIZE - 1)) >> L2MAXL0SIZE;
+			l1leaf = l1dcp->stree + CTLLEAFIND + j;
+			p = BLKTOL0(blkno, sbi->l2nbperpage);
+			j0 = FALSE;
+		} else {
+			/* assign/init L1 page */
+			l1mp = get_metapage(ipbmap, p, PSIZE, 0);
+			if (l1mp == NULL)
+				goto errout;
+
+			l1dcp = (struct dmapctl *) l1mp->data;
+
+			/* compute start L0 */
+			j = 0;
+			l1leaf = l1dcp->stree + CTLLEAFIND;
+			p += nbperpage;	/* 1st L0 of L1.k  */
+		}
+
+		/*
+		 * extend each L0 in L1
+		 */
+		for (; j < LPERCTL; j++) {
+			/* get L0 page */
+			if (i0) {
+				/* read in L0 page: (blkno & (MAXL0SIZE - 1)) */
+
+				l0mp = read_metapage(ipbmap, p, PSIZE, 0);
+				if (l0mp == NULL)
+					goto errout;
+				l0dcp = (struct dmapctl *) l0mp->data;
+
+				/* compute start dmap */
+				i = (blkno & (MAXL0SIZE - 1)) >>
+				    L2BPERDMAP;
+				l0leaf = l0dcp->stree + CTLLEAFIND + i;
+				p = BLKTODMAP(blkno,
+					      sbi->l2nbperpage);
+				i0 = FALSE;
+			} else {
+				/* assign/init L0 page */
+				l0mp = get_metapage(ipbmap, p, PSIZE, 0);
+				if (l0mp == NULL)
+					goto errout;
+
+				l0dcp = (struct dmapctl *) l0mp->data;
+
+				/* compute start dmap */
+				i = 0;
+				l0leaf = l0dcp->stree + CTLLEAFIND;
+				p += nbperpage;	/* 1st dmap of L0.j */
+			}
+
+			/*
+			 * extend each dmap in L0
+			 */
+			for (; i < LPERCTL; i++) {
+				/*
+				 * reconstruct the dmap page, and
+				 * initialize corresponding parent L0 leaf
+				 */
+				if ((n = blkno & (BPERDMAP - 1))) {
+					/* read in dmap page: */
+					mp = read_metapage(ipbmap, p,
+							   PSIZE, 0);
+					if (mp == NULL)
+						goto errout;
+					n = min(nblocks, (s64)BPERDMAP - n);
+				} else {
+					/* assign/init dmap page */
+					mp = read_metapage(ipbmap, p,
+							   PSIZE, 0);
+					if (mp == NULL)
+						goto errout;
+
+					n = min(nblocks, (s64)BPERDMAP);
+				}
+
+				dp = (struct dmap *) mp->data;
+				*l0leaf = dbInitDmap(dp, blkno, n);
+
+				bmp->db_nfree += n;
+				agno = le64_to_cpu(dp->start) >> l2agsize;
+				bmp->db_agfree[agno] += n;
+
+				write_metapage(mp);
+
+				l0leaf++;
+				p += nbperpage;
+
+				blkno += n;
+				nblocks -= n;
+				if (nblocks == 0)
+					break;
+			}	/* for each dmap in a L0 */
+
+			/*
+			 * build current L0 page from its leaves, and 
+			 * initialize corresponding parent L1 leaf
+			 */
+			*l1leaf = dbInitDmapCtl(l0dcp, 0, ++i);
+			write_metapage(l0mp);
+			l0mp = NULL;
+
+			if (nblocks)
+				l1leaf++;	/* continue for next L0 */
+			else {
+				/* more than 1 L0 ? */
+				if (j > 0)
+					break;	/* build L1 page */
+				else {
+					/* summarize in global bmap page */
+					bmp->db_maxfreebud = *l1leaf;
+					release_metapage(l1mp);
+					release_metapage(l2mp);
+					goto finalize;
+				}
+			}
+		}		/* for each L0 in a L1 */
+
+		/*
+		 * build current L1 page from its leaves, and 
+		 * initialize corresponding parent L2 leaf
+		 */
+		*l2leaf = dbInitDmapCtl(l1dcp, 1, ++j);
+		write_metapage(l1mp);
+		l1mp = NULL;
+
+		if (nblocks)
+			l2leaf++;	/* continue for next L1 */
+		else {
+			/* more than 1 L1 ? */
+			if (k > 0)
+				break;	/* build L2 page */
+			else {
+				/* summarize in global bmap page */
+				bmp->db_maxfreebud = *l2leaf;
+				release_metapage(l2mp);
+				goto finalize;
+			}
+		}
+	}			/* for each L1 in a L2 */
+
+	jfs_error(ipbmap->i_sb,
+		  "dbExtendFS: function has not returned as expected");
+errout:
+	if (l0mp)
+		release_metapage(l0mp);
+	if (l1mp)
+		release_metapage(l1mp);
+	release_metapage(l2mp);
+	return -EIO;
+
+	/*
+	 *      finalize bmap control page
+	 */
+finalize:
+
+	return 0;
+}
+
+
+/*
+ *	dbFinalizeBmap()
+ */
+void dbFinalizeBmap(struct inode *ipbmap)
+{
+	struct bmap *bmp = JFS_SBI(ipbmap->i_sb)->bmap;
+	int actags, inactags, l2nl;
+	s64 ag_rem, actfree, inactfree, avgfree;
+	int i, n;
+
+	/*
+	 *      finalize bmap control page
+	 */
+//finalize:
+	/* 
+	 * compute db_agpref: preferred ag to allocate from
+	 * (the leftmost ag with average free space in it);
+	 */
+//agpref:
+	/* get the number of active ags and inacitve ags */
+	actags = bmp->db_maxag + 1;
+	inactags = bmp->db_numag - actags;
+	ag_rem = bmp->db_mapsize & (bmp->db_agsize - 1);	/* ??? */
+
+	/* determine how many blocks are in the inactive allocation
+	 * groups. in doing this, we must account for the fact that
+	 * the rightmost group might be a partial group (i.e. file
+	 * system size is not a multiple of the group size).
+	 */
+	inactfree = (inactags && ag_rem) ?
+	    ((inactags - 1) << bmp->db_agl2size) + ag_rem
+	    : inactags << bmp->db_agl2size;
+
+	/* determine how many free blocks are in the active
+	 * allocation groups plus the average number of free blocks
+	 * within the active ags.
+	 */
+	actfree = bmp->db_nfree - inactfree;
+	avgfree = (u32) actfree / (u32) actags;
+
+	/* if the preferred allocation group has not average free space.
+	 * re-establish the preferred group as the leftmost
+	 * group with average free space.
+	 */
+	if (bmp->db_agfree[bmp->db_agpref] < avgfree) {
+		for (bmp->db_agpref = 0; bmp->db_agpref < actags;
+		     bmp->db_agpref++) {
+			if (bmp->db_agfree[bmp->db_agpref] >= avgfree)
+				break;
+		}
+		if (bmp->db_agpref >= bmp->db_numag) {
+			jfs_error(ipbmap->i_sb,
+				  "cannot find ag with average freespace");
+		}
+	}
+
+	/*
+	 * compute db_aglevel, db_agheigth, db_width, db_agstart:
+	 * an ag is covered in aglevel dmapctl summary tree, 
+	 * at agheight level height (from leaf) with agwidth number of nodes 
+	 * each, which starts at agstart index node of the smmary tree node 
+	 * array;
+	 */
+	bmp->db_aglevel = BMAPSZTOLEV(bmp->db_agsize);
+	l2nl =
+	    bmp->db_agl2size - (L2BPERDMAP + bmp->db_aglevel * L2LPERCTL);
+	bmp->db_agheigth = l2nl >> 1;
+	bmp->db_agwidth = 1 << (l2nl - (bmp->db_agheigth << 1));
+	for (i = 5 - bmp->db_agheigth, bmp->db_agstart = 0, n = 1; i > 0;
+	     i--) {
+		bmp->db_agstart += n;
+		n <<= 2;
+	}
+
+}
+
+
+/*
+ * NAME:	dbInitDmap()/ujfs_idmap_page()
+ *                                                                    
+ * FUNCTION:	initialize working/persistent bitmap of the dmap page
+ *		for the specified number of blocks:
+ *                                                                    
+ *		at entry, the bitmaps had been initialized as free (ZEROS);
+ *		The number of blocks will only account for the actually 
+ *		existing blocks. Blocks which don't actually exist in 
+ *		the aggregate will be marked as allocated (ONES);
+ *
+ * PARAMETERS:
+ *	dp	- pointer to page of map
+ *	nblocks	- number of blocks this page
+ *
+ * RETURNS: NONE
+ */
+static int dbInitDmap(struct dmap * dp, s64 Blkno, int nblocks)
+{
+	int blkno, w, b, r, nw, nb, i;
+
+	/* starting block number within the dmap */
+	blkno = Blkno & (BPERDMAP - 1);
+
+	if (blkno == 0) {
+		dp->nblocks = dp->nfree = cpu_to_le32(nblocks);
+		dp->start = cpu_to_le64(Blkno);
+
+		if (nblocks == BPERDMAP) {
+			memset(&dp->wmap[0], 0, LPERDMAP * 4);
+			memset(&dp->pmap[0], 0, LPERDMAP * 4);
+			goto initTree;
+		}
+	} else {
+		dp->nblocks =
+		    cpu_to_le32(le32_to_cpu(dp->nblocks) + nblocks);
+		dp->nfree = cpu_to_le32(le32_to_cpu(dp->nfree) + nblocks);
+	}
+
+	/* word number containing start block number */
+	w = blkno >> L2DBWORD;
+
+	/*
+	 * free the bits corresponding to the block range (ZEROS):
+	 * note: not all bits of the first and last words may be contained 
+	 * within the block range.
+	 */
+	for (r = nblocks; r > 0; r -= nb, blkno += nb) {
+		/* number of bits preceding range to be freed in the word */
+		b = blkno & (DBWORD - 1);
+		/* number of bits to free in the word */
+		nb = min(r, DBWORD - b);
+
+		/* is partial word to be freed ? */
+		if (nb < DBWORD) {
+			/* free (set to 0) from the bitmap word */
+			dp->wmap[w] &= cpu_to_le32(~(ONES << (DBWORD - nb)
+						     >> b));
+			dp->pmap[w] &= cpu_to_le32(~(ONES << (DBWORD - nb)
+						     >> b));
+
+			/* skip the word freed */
+			w++;
+		} else {
+			/* free (set to 0) contiguous bitmap words */
+			nw = r >> L2DBWORD;
+			memset(&dp->wmap[w], 0, nw * 4);
+			memset(&dp->pmap[w], 0, nw * 4);
+
+			/* skip the words freed */
+			nb = nw << L2DBWORD;
+			w += nw;
+		}
+	}
+
+	/*
+	 * mark bits following the range to be freed (non-existing 
+	 * blocks) as allocated (ONES)
+	 */
+
+	if (blkno == BPERDMAP)
+		goto initTree;
+
+	/* the first word beyond the end of existing blocks */
+	w = blkno >> L2DBWORD;
+
+	/* does nblocks fall on a 32-bit boundary ? */
+	b = blkno & (DBWORD - 1);
+	if (b) {
+		/* mark a partial word allocated */
+		dp->wmap[w] = dp->pmap[w] = cpu_to_le32(ONES >> b);
+		w++;
+	}
+
+	/* set the rest of the words in the page to allocated (ONES) */
+	for (i = w; i < LPERDMAP; i++)
+		dp->pmap[i] = dp->wmap[i] = ONES;
+
+	/*
+	 * init tree
+	 */
+      initTree:
+	return (dbInitDmapTree(dp));
+}
+
+
+/*
+ * NAME:	dbInitDmapTree()/ujfs_complete_dmap()
+ *                                                                    
+ * FUNCTION:	initialize summary tree of the specified dmap:
+ *
+ *		at entry, bitmap of the dmap has been initialized;
+ *                                                                    
+ * PARAMETERS:
+ *	dp	- dmap to complete
+ *	blkno	- starting block number for this dmap
+ *	treemax	- will be filled in with max free for this dmap
+ *
+ * RETURNS:	max free string at the root of the tree
+ */
+static int dbInitDmapTree(struct dmap * dp)
+{
+	struct dmaptree *tp;
+	s8 *cp;
+	int i;
+
+	/* init fixed info of tree */
+	tp = &dp->tree;
+	tp->nleafs = cpu_to_le32(LPERDMAP);
+	tp->l2nleafs = cpu_to_le32(L2LPERDMAP);
+	tp->leafidx = cpu_to_le32(LEAFIND);
+	tp->height = cpu_to_le32(4);
+	tp->budmin = BUDMIN;
+
+	/* init each leaf from corresponding wmap word:
+	 * note: leaf is set to NOFREE(-1) if all blocks of corresponding
+	 * bitmap word are allocated. 
+	 */
+	cp = tp->stree + le32_to_cpu(tp->leafidx);
+	for (i = 0; i < LPERDMAP; i++)
+		*cp++ = dbMaxBud((u8 *) & dp->wmap[i]);
+
+	/* build the dmap's binary buddy summary tree */
+	return (dbInitTree(tp));
+}
+
+
+/*
+ * NAME:	dbInitTree()/ujfs_adjtree()
+ *                                                                    
+ * FUNCTION:	initialize binary buddy summary tree of a dmap or dmapctl.
+ *
+ *		at entry, the leaves of the tree has been initialized 
+ *		from corresponding bitmap word or root of summary tree
+ *		of the child control page;
+ *		configure binary buddy system at the leaf level, then
+ *		bubble up the values of the leaf nodes up the tree.
+ *
+ * PARAMETERS:
+ *	cp	- Pointer to the root of the tree
+ *	l2leaves- Number of leaf nodes as a power of 2
+ *	l2min	- Number of blocks that can be covered by a leaf
+ *		  as a power of 2
+ *
+ * RETURNS: max free string at the root of the tree
+ */
+static int dbInitTree(struct dmaptree * dtp)
+{
+	int l2max, l2free, bsize, nextb, i;
+	int child, parent, nparent;
+	s8 *tp, *cp, *cp1;
+
+	tp = dtp->stree;
+
+	/* Determine the maximum free string possible for the leaves */
+	l2max = le32_to_cpu(dtp->l2nleafs) + dtp->budmin;
+
+	/*
+	 * configure the leaf levevl into binary buddy system
+	 *
+	 * Try to combine buddies starting with a buddy size of 1 
+	 * (i.e. two leaves). At a buddy size of 1 two buddy leaves 
+	 * can be combined if both buddies have a maximum free of l2min; 
+	 * the combination will result in the left-most buddy leaf having 
+	 * a maximum free of l2min+1.  
+	 * After processing all buddies for a given size, process buddies 
+	 * at the next higher buddy size (i.e. current size * 2) and 
+	 * the next maximum free (current free + 1).  
+	 * This continues until the maximum possible buddy combination 
+	 * yields maximum free.
+	 */
+	for (l2free = dtp->budmin, bsize = 1; l2free < l2max;
+	     l2free++, bsize = nextb) {
+		/* get next buddy size == current buddy pair size */
+		nextb = bsize << 1;
+
+		/* scan each adjacent buddy pair at current buddy size */
+		for (i = 0, cp = tp + le32_to_cpu(dtp->leafidx);
+		     i < le32_to_cpu(dtp->nleafs);
+		     i += nextb, cp += nextb) {
+			/* coalesce if both adjacent buddies are max free */
+			if (*cp == l2free && *(cp + bsize) == l2free) {
+				*cp = l2free + 1;	/* left take right */
+				*(cp + bsize) = -1;	/* right give left */
+			}
+		}
+	}
+
+	/*
+	 * bubble summary information of leaves up the tree.
+	 *
+	 * Starting at the leaf node level, the four nodes described by
+	 * the higher level parent node are compared for a maximum free and 
+	 * this maximum becomes the value of the parent node.  
+	 * when all lower level nodes are processed in this fashion then 
+	 * move up to the next level (parent becomes a lower level node) and 
+	 * continue the process for that level.
+	 */
+	for (child = le32_to_cpu(dtp->leafidx),
+	     nparent = le32_to_cpu(dtp->nleafs) >> 2;
+	     nparent > 0; nparent >>= 2, child = parent) {
+		/* get index of 1st node of parent level */
+		parent = (child - 1) >> 2;
+
+		/* set the value of the parent node as the maximum 
+		 * of the four nodes of the current level.
+		 */
+		for (i = 0, cp = tp + child, cp1 = tp + parent;
+		     i < nparent; i++, cp += 4, cp1++)
+			*cp1 = TREEMAX(cp);
+	}
+
+	return (*tp);
+}
+
+
+/*
+ *	dbInitDmapCtl()
+ *
+ * function: initialize dmapctl page
+ */
+static int dbInitDmapCtl(struct dmapctl * dcp, int level, int i)
+{				/* start leaf index not covered by range */
+	s8 *cp;
+
+	dcp->nleafs = cpu_to_le32(LPERCTL);
+	dcp->l2nleafs = cpu_to_le32(L2LPERCTL);
+	dcp->leafidx = cpu_to_le32(CTLLEAFIND);
+	dcp->height = cpu_to_le32(5);
+	dcp->budmin = L2BPERDMAP + L2LPERCTL * level;
+
+	/*
+	 * initialize the leaves of current level that were not covered 
+	 * by the specified input block range (i.e. the leaves have no 
+	 * low level dmapctl or dmap).
+	 */
+	cp = &dcp->stree[CTLLEAFIND + i];
+	for (; i < LPERCTL; i++)
+		*cp++ = NOFREE;
+
+	/* build the dmap's binary buddy summary tree */
+	return (dbInitTree((struct dmaptree *) dcp));
+}
+
+
+/*
+ * NAME:	dbGetL2AGSize()/ujfs_getagl2size()
+ *                                                                    
+ * FUNCTION:	Determine log2(allocation group size) from aggregate size
+ *                                                                    
+ * PARAMETERS:
+ *	nblocks	- Number of blocks in aggregate
+ *
+ * RETURNS: log2(allocation group size) in aggregate blocks
+ */
+static int dbGetL2AGSize(s64 nblocks)
+{
+	s64 sz;
+	s64 m;
+	int l2sz;
+
+	if (nblocks < BPERDMAP * MAXAG)
+		return (L2BPERDMAP);
+
+	/* round up aggregate size to power of 2 */
+	m = ((u64) 1 << (64 - 1));
+	for (l2sz = 64; l2sz >= 0; l2sz--, m >>= 1) {
+		if (m & nblocks)
+			break;
+	}
+
+	sz = (s64) 1 << l2sz;
+	if (sz < nblocks)
+		l2sz += 1;
+
+	/* agsize = roundupSize/max_number_of_ag */
+	return (l2sz - L2MAXAG);
+}
+
+
+/*
+ * NAME:	dbMapFileSizeToMapSize()
+ *                                                                    
+ * FUNCTION:	compute number of blocks the block allocation map file 
+ *		can cover from the map file size;
+ *
+ * RETURNS:	Number of blocks which can be covered by this block map file;
+ */
+
+/*
+ * maximum number of map pages at each level including control pages
+ */
+#define MAXL0PAGES	(1 + LPERCTL)
+#define MAXL1PAGES	(1 + LPERCTL * MAXL0PAGES)
+#define MAXL2PAGES	(1 + LPERCTL * MAXL1PAGES)
+
+/*
+ * convert number of map pages to the zero origin top dmapctl level
+ */
+#define BMAPPGTOLEV(npages)	\
+	(((npages) <= 3 + MAXL0PAGES) ? 0 \
+       : ((npages) <= 2 + MAXL1PAGES) ? 1 : 2)
+
+s64 dbMapFileSizeToMapSize(struct inode * ipbmap)
+{
+	struct super_block *sb = ipbmap->i_sb;
+	s64 nblocks;
+	s64 npages, ndmaps;
+	int level, i;
+	int complete, factor;
+
+	nblocks = ipbmap->i_size >> JFS_SBI(sb)->l2bsize;
+	npages = nblocks >> JFS_SBI(sb)->l2nbperpage;
+	level = BMAPPGTOLEV(npages);
+
+	/* At each level, accumulate the number of dmap pages covered by 
+	 * the number of full child levels below it;
+	 * repeat for the last incomplete child level.
+	 */
+	ndmaps = 0;
+	npages--;		/* skip the first global control page */
+	/* skip higher level control pages above top level covered by map */
+	npages -= (2 - level);
+	npages--;		/* skip top level's control page */
+	for (i = level; i >= 0; i--) {
+		factor =
+		    (i == 2) ? MAXL1PAGES : ((i == 1) ? MAXL0PAGES : 1);
+		complete = (u32) npages / factor;
+		ndmaps += complete * ((i == 2) ? LPERCTL * LPERCTL
+				      : ((i == 1) ? LPERCTL : 1));
+
+		/* pages in last/incomplete child */
+		npages = (u32) npages % factor;
+		/* skip incomplete child's level control page */
+		npages--;
+	}
+
+	/* convert the number of dmaps into the number of blocks 
+	 * which can be covered by the dmaps;
+	 */
+	nblocks = ndmaps << L2BPERDMAP;
+
+	return (nblocks);
+}
+
+
+#ifdef	_JFS_DEBUG_DMAP
+/*
+ *	DBinitmap()
+ */
+static void DBinitmap(s64 size, struct inode *ipbmap, u32 ** results)
+{
+	int npages;
+	u32 *dbmap, *d;
+	int n;
+	s64 lblkno, cur_block;
+	struct dmap *dp;
+	struct metapage *mp;
+
+	npages = size / 32768;
+	npages += (size % 32768) ? 1 : 0;
+
+	dbmap = (u32 *) xmalloc(npages * 4096, L2PSIZE, kernel_heap);
+	if (dbmap == NULL)
+		BUG();	/* Not robust since this is only unused debug code */
+
+	for (n = 0, d = dbmap; n < npages; n++, d += 1024)
+		bzero(d, 4096);
+
+	/* Need to initialize from disk map pages
+	 */
+	for (d = dbmap, cur_block = 0; cur_block < size;
+	     cur_block += BPERDMAP, d += LPERDMAP) {
+		lblkno = BLKTODMAP(cur_block,
+				   JFS_SBI(ipbmap->i_sb)->bmap->
+				   db_l2nbperpage);
+		mp = read_metapage(ipbmap, lblkno, PSIZE, 0);
+		if (mp == NULL) {
+			jfs_error(ipbmap->i_sb,
+				  "DBinitmap: could not read disk map page");
+			continue;
+		}
+		dp = (struct dmap *) mp->data;
+
+		for (n = 0; n < LPERDMAP; n++)
+			d[n] = le32_to_cpu(dp->wmap[n]);
+
+		release_metapage(mp);
+	}
+
+	*results = dbmap;
+}
+
+
+/*
+ *	DBAlloc()
+ */
+void DBAlloc(uint * dbmap, s64 mapsize, s64 blkno, s64 nblocks)
+{
+	int word, nb, bitno;
+	u32 mask;
+
+	assert(blkno > 0 && blkno < mapsize);
+	assert(nblocks > 0 && nblocks <= mapsize);
+
+	assert(blkno + nblocks <= mapsize);
+
+	dbmap += (blkno / 32);
+	while (nblocks > 0) {
+		bitno = blkno & (32 - 1);
+		nb = min(nblocks, 32 - bitno);
+
+		mask = (0xffffffff << (32 - nb) >> bitno);
+		assert((mask & *dbmap) == 0);
+		*dbmap |= mask;
+
+		dbmap++;
+		blkno += nb;
+		nblocks -= nb;
+	}
+}
+
+
+/*
+ *	DBFree()
+ */
+static void DBFree(uint * dbmap, s64 mapsize, s64 blkno, s64 nblocks)
+{
+	int word, nb, bitno;
+	u32 mask;
+
+	assert(blkno > 0 && blkno < mapsize);
+	assert(nblocks > 0 && nblocks <= mapsize);
+
+	assert(blkno + nblocks <= mapsize);
+
+	dbmap += (blkno / 32);
+	while (nblocks > 0) {
+		bitno = blkno & (32 - 1);
+		nb = min(nblocks, 32 - bitno);
+
+		mask = (0xffffffff << (32 - nb) >> bitno);
+		assert((mask & *dbmap) == mask);
+		*dbmap &= ~mask;
+
+		dbmap++;
+		blkno += nb;
+		nblocks -= nb;
+	}
+}
+
+
+/*
+ *	DBAllocCK()
+ */
+static void DBAllocCK(uint * dbmap, s64 mapsize, s64 blkno, s64 nblocks)
+{
+	int word, nb, bitno;
+	u32 mask;
+
+	assert(blkno > 0 && blkno < mapsize);
+	assert(nblocks > 0 && nblocks <= mapsize);
+
+	assert(blkno + nblocks <= mapsize);
+
+	dbmap += (blkno / 32);
+	while (nblocks > 0) {
+		bitno = blkno & (32 - 1);
+		nb = min(nblocks, 32 - bitno);
+
+		mask = (0xffffffff << (32 - nb) >> bitno);
+		assert((mask & *dbmap) == mask);
+
+		dbmap++;
+		blkno += nb;
+		nblocks -= nb;
+	}
+}
+
+
+/*
+ *	DBFreeCK()
+ */
+static void DBFreeCK(uint * dbmap, s64 mapsize, s64 blkno, s64 nblocks)
+{
+	int word, nb, bitno;
+	u32 mask;
+
+	assert(blkno > 0 && blkno < mapsize);
+	assert(nblocks > 0 && nblocks <= mapsize);
+
+	assert(blkno + nblocks <= mapsize);
+
+	dbmap += (blkno / 32);
+	while (nblocks > 0) {
+		bitno = blkno & (32 - 1);
+		nb = min(nblocks, 32 - bitno);
+
+		mask = (0xffffffff << (32 - nb) >> bitno);
+		assert((mask & *dbmap) == 0);
+
+		dbmap++;
+		blkno += nb;
+		nblocks -= nb;
+	}
+}
+
+
+/*
+ *	dbPrtMap()
+ */
+static void dbPrtMap(struct bmap * bmp)
+{
+	printk("   mapsize:   %d%d\n", bmp->db_mapsize);
+	printk("   nfree:     %d%d\n", bmp->db_nfree);
+	printk("   numag:     %d\n", bmp->db_numag);
+	printk("   agsize:    %d%d\n", bmp->db_agsize);
+	printk("   agl2size:  %d\n", bmp->db_agl2size);
+	printk("   agwidth:   %d\n", bmp->db_agwidth);
+	printk("   agstart:   %d\n", bmp->db_agstart);
+	printk("   agheigth:  %d\n", bmp->db_agheigth);
+	printk("   aglevel:   %d\n", bmp->db_aglevel);
+	printk("   maxlevel:  %d\n", bmp->db_maxlevel);
+	printk("   maxag:     %d\n", bmp->db_maxag);
+	printk("   agpref:    %d\n", bmp->db_agpref);
+	printk("   l2nbppg:   %d\n", bmp->db_l2nbperpage);
+}
+
+
+/*
+ *	dbPrtCtl()
+ */
+static void dbPrtCtl(struct dmapctl * dcp)
+{
+	int i, j, n;
+
+	printk("   height:    %08x\n", le32_to_cpu(dcp->height));
+	printk("   leafidx:   %08x\n", le32_to_cpu(dcp->leafidx));
+	printk("   budmin:    %08x\n", dcp->budmin);
+	printk("   nleafs:    %08x\n", le32_to_cpu(dcp->nleafs));
+	printk("   l2nleafs:  %08x\n", le32_to_cpu(dcp->l2nleafs));
+
+	printk("\n Tree:\n");
+	for (i = 0; i < CTLLEAFIND; i += 8) {
+		n = min(8, CTLLEAFIND - i);
+
+		for (j = 0; j < n; j++)
+			printf("  [%03x]: %02x", i + j,
+			       (char) dcp->stree[i + j]);
+		printf("\n");
+	}
+
+	printk("\n Tree Leaves:\n");
+	for (i = 0; i < LPERCTL; i += 8) {
+		n = min(8, LPERCTL - i);
+
+		for (j = 0; j < n; j++)
+			printf("  [%03x]: %02x",
+			       i + j,
+			       (char) dcp->stree[i + j + CTLLEAFIND]);
+		printf("\n");
+	}
+}
+#endif				/* _JFS_DEBUG_DMAP */
diff --git a/fs/jfs/jfs_dmap.h b/fs/jfs/jfs_dmap.h
new file mode 100644
index 00000000000000..9599b9ff109d0c
--- /dev/null
+++ b/fs/jfs/jfs_dmap.h
@@ -0,0 +1,297 @@
+/*
+ *   Copyright (c) International Business Machines Corp., 2000-2002
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef	_H_JFS_DMAP
+#define _H_JFS_DMAP
+
+#include "jfs_txnmgr.h"
+
+#define BMAPVERSION	1	/* version number */
+#define	TREESIZE	(256+64+16+4+1)	/* size of a dmap tree */
+#define	LEAFIND		(64+16+4+1)	/* index of 1st leaf of a dmap tree */
+#define LPERDMAP	256	/* num leaves per dmap tree */
+#define L2LPERDMAP	8	/* l2 number of leaves per dmap tree */
+#define	DBWORD		32	/* # of blks covered by a map word */
+#define	L2DBWORD	5	/* l2 # of blks covered by a mword */
+#define BUDMIN  	L2DBWORD	/* max free string in a map word */
+#define BPERDMAP	(LPERDMAP * DBWORD)	/* num of blks per dmap */
+#define L2BPERDMAP	13	/* l2 num of blks per dmap */
+#define CTLTREESIZE	(1024+256+64+16+4+1)	/* size of a dmapctl tree */
+#define CTLLEAFIND	(256+64+16+4+1)	/* idx of 1st leaf of a dmapctl tree */
+#define LPERCTL		1024	/* num of leaves per dmapctl tree */
+#define L2LPERCTL	10	/* l2 num of leaves per dmapctl tree */
+#define	ROOT		0	/* index of the root of a tree */
+#define	NOFREE		((s8) -1)	/* no blocks free */
+#define	MAXAG		128	/* max number of allocation groups */
+#define L2MAXAG		7	/* l2 max num of AG */
+#define L2MINAGSZ	25	/* l2 of minimum AG size in bytes */
+#define	BMAPBLKNO	0	/* lblkno of bmap within the map */
+
+/*
+ * maximum l2 number of disk blocks at the various dmapctl levels.
+ */
+#define	L2MAXL0SIZE	(L2BPERDMAP + 1 * L2LPERCTL)
+#define	L2MAXL1SIZE	(L2BPERDMAP + 2 * L2LPERCTL)
+#define	L2MAXL2SIZE	(L2BPERDMAP + 3 * L2LPERCTL)
+
+/*
+ * maximum number of disk blocks at the various dmapctl levels.
+ */
+#define	MAXL0SIZE	((s64)1 << L2MAXL0SIZE)
+#define	MAXL1SIZE	((s64)1 << L2MAXL1SIZE)
+#define	MAXL2SIZE	((s64)1 << L2MAXL2SIZE)
+
+#define	MAXMAPSIZE	MAXL2SIZE	/* maximum aggregate map size */
+
+/* 
+ * determine the maximum free string for four (lower level) nodes
+ * of the tree.
+ */
+static __inline signed char TREEMAX(signed char *cp)
+{
+	signed char tmp1, tmp2;
+
+	tmp1 = max(*(cp+2), *(cp+3));
+	tmp2 = max(*(cp), *(cp+1));
+
+	return max(tmp1, tmp2);
+}
+
+/*
+ * convert disk block number to the logical block number of the dmap
+ * describing the disk block.  s is the log2(number of logical blocks per page)
+ *
+ * The calculation figures out how many logical pages are in front of the dmap.
+ *	- the number of dmaps preceding it
+ *	- the number of L0 pages preceding its L0 page
+ *	- the number of L1 pages preceding its L1 page
+ *	- 3 is added to account for the L2, L1, and L0 page for this dmap
+ *	- 1 is added to account for the control page of the map.
+ */
+#define BLKTODMAP(b,s)    \
+        ((((b) >> 13) + ((b) >> 23) + ((b) >> 33) + 3 + 1) << (s))
+
+/*
+ * convert disk block number to the logical block number of the LEVEL 0
+ * dmapctl describing the disk block.  s is the log2(number of logical blocks
+ * per page)
+ *
+ * The calculation figures out how many logical pages are in front of the L0.
+ *	- the number of dmap pages preceding it
+ *	- the number of L0 pages preceding it
+ *	- the number of L1 pages preceding its L1 page
+ *	- 2 is added to account for the L2, and L1 page for this L0
+ *	- 1 is added to account for the control page of the map.
+ */
+#define BLKTOL0(b,s)      \
+        (((((b) >> 23) << 10) + ((b) >> 23) + ((b) >> 33) + 2 + 1) << (s))
+
+/*
+ * convert disk block number to the logical block number of the LEVEL 1
+ * dmapctl describing the disk block.  s is the log2(number of logical blocks
+ * per page)
+ *
+ * The calculation figures out how many logical pages are in front of the L1.
+ *	- the number of dmap pages preceding it
+ *	- the number of L0 pages preceding it
+ *	- the number of L1 pages preceding it
+ *	- 1 is added to account for the L2 page
+ *	- 1 is added to account for the control page of the map.
+ */
+#define BLKTOL1(b,s)      \
+     (((((b) >> 33) << 20) + (((b) >> 33) << 10) + ((b) >> 33) + 1 + 1) << (s))
+
+/*
+ * convert disk block number to the logical block number of the dmapctl
+ * at the specified level which describes the disk block.
+ */
+#define BLKTOCTL(b,s,l)   \
+        (((l) == 2) ? 1 : ((l) == 1) ? BLKTOL1((b),(s)) : BLKTOL0((b),(s)))
+
+/* 
+ * convert aggregate map size to the zero origin dmapctl level of the
+ * top dmapctl.
+ */
+#define	BMAPSZTOLEV(size)	\
+	(((size) <= MAXL0SIZE) ? 0 : ((size) <= MAXL1SIZE) ? 1 : 2)
+
+/* convert disk block number to allocation group number.
+ */
+#define BLKTOAG(b,sbi)	((b) >> ((sbi)->bmap->db_agl2size))
+
+/* convert allocation group number to starting disk block
+ * number.
+ */
+#define AGTOBLK(a,ip)	\
+	((s64)(a) << (JFS_SBI((ip)->i_sb)->bmap->db_agl2size))
+
+/*
+ *	dmap summary tree
+ *
+ * dmaptree must be consistent with dmapctl.
+ */
+struct dmaptree {
+	s32 nleafs;		/* 4: number of tree leafs      */
+	s32 l2nleafs;		/* 4: l2 number of tree leafs   */
+	s32 leafidx;		/* 4: index of first tree leaf  */
+	s32 height;		/* 4: height of the tree        */
+	s8 budmin;		/* 1: min l2 tree leaf value to combine */
+	s8 stree[TREESIZE];	/* TREESIZE: tree               */
+	u8 pad[2];		/* 2: pad to word boundary      */
+};				/* - 360 -                      */
+
+/*
+ *	dmap page per 8K blocks bitmap
+ */
+struct dmap {
+	s32 nblocks;		/* 4: num blks covered by this dmap     */
+	s32 nfree;		/* 4: num of free blks in this dmap     */
+	s64 start;		/* 8: starting blkno for this dmap      */
+	struct dmaptree tree;	/* 360: dmap tree                       */
+	u8 pad[1672];		/* 1672: pad to 2048 bytes              */
+	u32 wmap[LPERDMAP];	/* 1024: bits of the working map        */
+	u32 pmap[LPERDMAP];	/* 1024: bits of the persistent map     */
+};				/* - 4096 -                             */
+
+/*
+ *	disk map control page per level.
+ *
+ * dmapctl must be consistent with dmaptree.
+ */
+struct dmapctl {
+	s32 nleafs;		/* 4: number of tree leafs      */
+	s32 l2nleafs;		/* 4: l2 number of tree leafs   */
+	s32 leafidx;		/* 4: index of the first tree leaf      */
+	s32 height;		/* 4: height of tree            */
+	s8 budmin;		/* 1: minimum l2 tree leaf value        */
+	s8 stree[CTLTREESIZE];	/* CTLTREESIZE: dmapctl tree    */
+	u8 pad[2714];		/* 2714: pad to 4096            */
+};				/* - 4096 -                     */
+
+/*
+ *	common definition for dmaptree within dmap and dmapctl
+ */
+typedef union dmtree {
+	struct dmaptree t1;
+	struct dmapctl t2;
+} dmtree_t;
+
+/* macros for accessing fields within dmtree */
+#define	dmt_nleafs	t1.nleafs
+#define	dmt_l2nleafs 	t1.l2nleafs
+#define	dmt_leafidx 	t1.leafidx
+#define	dmt_height 	t1.height
+#define	dmt_budmin 	t1.budmin
+#define	dmt_stree 	t1.stree
+
+/* 
+ *	on-disk aggregate disk allocation map descriptor.
+ */
+struct dbmap {
+	s64 dn_mapsize;		/* 8: number of blocks in aggregate     */
+	s64 dn_nfree;		/* 8: num free blks in aggregate map    */
+	s32 dn_l2nbperpage;	/* 4: number of blks per page           */
+	s32 dn_numag;		/* 4: total number of ags               */
+	s32 dn_maxlevel;	/* 4: number of active ags              */
+	s32 dn_maxag;		/* 4: max active alloc group number     */
+	s32 dn_agpref;		/* 4: preferred alloc group (hint)      */
+	s32 dn_aglevel;		/* 4: dmapctl level holding the AG      */
+	s32 dn_agheigth;	/* 4: height in dmapctl of the AG       */
+	s32 dn_agwidth;		/* 4: width in dmapctl of the AG        */
+	s32 dn_agstart;		/* 4: start tree index at AG height     */
+	s32 dn_agl2size;	/* 4: l2 num of blks per alloc group    */
+	s64 dn_agfree[MAXAG];	/* 8*MAXAG: per AG free count           */
+	s64 dn_agsize;		/* 8: num of blks per alloc group       */
+	s8 dn_maxfreebud;	/* 1: max free buddy system             */
+	u8 pad[3007];		/* 3007: pad to 4096                    */
+};				/* - 4096 -                             */
+
+/* 
+ *	in-memory aggregate disk allocation map descriptor.
+ */
+struct bmap {
+	struct dbmap db_bmap;	/* on-disk aggregate map descriptor */
+	struct inode *db_ipbmap;	/* ptr to aggregate map incore inode */
+	struct semaphore db_bmaplock;	/* aggregate map lock */
+	atomic_t db_active[MAXAG];	/* count of active, open files in AG */
+	u32 *db_DBmap;
+};
+
+/* macros for accessing fields within in-memory aggregate map descriptor */
+#define	db_mapsize	db_bmap.dn_mapsize
+#define	db_nfree	db_bmap.dn_nfree
+#define	db_agfree	db_bmap.dn_agfree
+#define	db_agsize	db_bmap.dn_agsize
+#define	db_agl2size	db_bmap.dn_agl2size
+#define	db_agwidth	db_bmap.dn_agwidth
+#define	db_agheigth	db_bmap.dn_agheigth
+#define	db_agstart	db_bmap.dn_agstart
+#define	db_numag	db_bmap.dn_numag
+#define	db_maxlevel	db_bmap.dn_maxlevel
+#define	db_aglevel	db_bmap.dn_aglevel
+#define	db_agpref	db_bmap.dn_agpref
+#define	db_maxag	db_bmap.dn_maxag
+#define	db_maxfreebud	db_bmap.dn_maxfreebud
+#define	db_l2nbperpage	db_bmap.dn_l2nbperpage
+
+/*
+ * macros for various conversions needed by the allocators.
+ * blkstol2(), cntlz(), and cnttz() are operating system dependent functions.
+ */
+/* convert number of blocks to log2 number of blocks, rounding up to
+ * the next log2 value if blocks is not a l2 multiple.
+ */
+#define	BLKSTOL2(d)		(blkstol2(d))
+
+/* convert number of leafs to log2 leaf value */
+#define	NLSTOL2BSZ(n)		(31 - cntlz((n)) + BUDMIN)
+
+/* convert leaf index to log2 leaf value */
+#define	LITOL2BSZ(n,m,b)	((((n) == 0) ? (m) : cnttz((n))) + (b))
+
+/* convert a block number to a dmap control leaf index */
+#define BLKTOCTLLEAF(b,m)	\
+	(((b) & (((s64)1 << ((m) + L2LPERCTL)) - 1)) >> (m))
+
+/* convert log2 leaf value to buddy size */
+#define	BUDSIZE(s,m)		(1 << ((s) - (m)))
+
+/*
+ *	external references.
+ */
+extern int dbMount(struct inode *ipbmap);
+
+extern int dbUnmount(struct inode *ipbmap, int mounterror);
+
+extern int dbFree(struct inode *ipbmap, s64 blkno, s64 nblocks);
+
+extern int dbUpdatePMap(struct inode *ipbmap,
+			int free, s64 blkno, s64 nblocks, struct tblock * tblk);
+
+extern int dbNextAG(struct inode *ipbmap);
+
+extern int dbAlloc(struct inode *ipbmap, s64 hint, s64 nblocks, s64 * results);
+
+extern int dbReAlloc(struct inode *ipbmap,
+		     s64 blkno, s64 nblocks, s64 addnblocks, s64 * results);
+
+extern int dbSync(struct inode *ipbmap);
+extern int dbAllocBottomUp(struct inode *ip, s64 blkno, s64 nblocks);
+extern int dbExtendFS(struct inode *ipbmap, s64 blkno, s64 nblocks);
+extern void dbFinalizeBmap(struct inode *ipbmap);
+extern s64 dbMapFileSizeToMapSize(struct inode *ipbmap);
+#endif				/* _H_JFS_DMAP */
diff --git a/fs/jfs/jfs_dtree.c b/fs/jfs/jfs_dtree.c
new file mode 100644
index 00000000000000..dc749c2e6fa87c
--- /dev/null
+++ b/fs/jfs/jfs_dtree.c
@@ -0,0 +1,4739 @@
+/*
+ *   Copyright (C) International Business Machines Corp., 2000-2004
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/*
+ *	jfs_dtree.c: directory B+-tree manager
+ *
+ * B+-tree with variable length key directory:
+ *
+ * each directory page is structured as an array of 32-byte
+ * directory entry slots initialized as a freelist
+ * to avoid search/compaction of free space at insertion.
+ * when an entry is inserted, a number of slots are allocated
+ * from the freelist as required to store variable length data
+ * of the entry; when the entry is deleted, slots of the entry
+ * are returned to freelist.
+ *
+ * leaf entry stores full name as key and file serial number
+ * (aka inode number) as data.
+ * internal/router entry stores sufffix compressed name
+ * as key and simple extent descriptor as data.
+ *
+ * each directory page maintains a sorted entry index table
+ * which stores the start slot index of sorted entries
+ * to allow binary search on the table.
+ *
+ * directory starts as a root/leaf page in on-disk inode
+ * inline data area.
+ * when it becomes full, it starts a leaf of a external extent
+ * of length of 1 block. each time the first leaf becomes full,
+ * it is extended rather than split (its size is doubled),
+ * until its length becoms 4 KBytes, from then the extent is split
+ * with new 4 Kbyte extent when it becomes full
+ * to reduce external fragmentation of small directories.
+ *
+ * blah, blah, blah, for linear scan of directory in pieces by
+ * readdir().
+ *
+ *
+ *	case-insensitive directory file system
+ *
+ * names are stored in case-sensitive way in leaf entry.
+ * but stored, searched and compared in case-insensitive (uppercase) order
+ * (i.e., both search key and entry key are folded for search/compare):
+ * (note that case-sensitive order is BROKEN in storage, e.g.,
+ *  sensitive: Ad, aB, aC, aD -> insensitive: aB, aC, aD, Ad
+ *
+ *  entries which folds to the same key makes up a equivalent class
+ *  whose members are stored as contiguous cluster (may cross page boundary)
+ *  but whose order is arbitrary and acts as duplicate, e.g.,
+ *  abc, Abc, aBc, abC)
+ *
+ * once match is found at leaf, requires scan forward/backward
+ * either for, in case-insensitive search, duplicate
+ * or for, in case-sensitive search, for exact match
+ *
+ * router entry must be created/stored in case-insensitive way
+ * in internal entry:
+ * (right most key of left page and left most key of right page
+ * are folded, and its suffix compression is propagated as router
+ * key in parent)
+ * (e.g., if split occurs <abc> and <aBd>, <ABD> trather than <aB>
+ * should be made the router key for the split)
+ *
+ * case-insensitive search:
+ *
+ * 	fold search key;
+ *
+ *	case-insensitive search of B-tree:
+ *	for internal entry, router key is already folded;
+ *	for leaf entry, fold the entry key before comparison.
+ *
+ *	if (leaf entry case-insensitive match found)
+ *		if (next entry satisfies case-insensitive match)
+ *			return EDUPLICATE;
+ *		if (prev entry satisfies case-insensitive match)
+ *			return EDUPLICATE;
+ *		return match;
+ *	else
+ *		return no match;
+ *
+ * 	serialization:
+ * target directory inode lock is being held on entry/exit
+ * of all main directory service routines.
+ *
+ *	log based recovery:
+ */
+
+#include <linux/fs.h>
+#include "jfs_incore.h"
+#include "jfs_superblock.h"
+#include "jfs_filsys.h"
+#include "jfs_metapage.h"
+#include "jfs_dmap.h"
+#include "jfs_unicode.h"
+#include "jfs_debug.h"
+
+/* dtree split parameter */
+struct dtsplit {
+	struct metapage *mp;
+	s16 index;
+	s16 nslot;
+	struct component_name *key;
+	ddata_t *data;
+	struct pxdlist *pxdlist;
+};
+
+#define DT_PAGE(IP, MP) BT_PAGE(IP, MP, dtpage_t, i_dtroot)
+
+/* get page buffer for specified block address */
+#define DT_GETPAGE(IP, BN, MP, SIZE, P, RC)\
+{\
+	BT_GETPAGE(IP, BN, MP, dtpage_t, SIZE, P, RC, i_dtroot)\
+	if (!(RC))\
+	{\
+		if (((P)->header.nextindex > (((BN)==0)?DTROOTMAXSLOT:(P)->header.maxslot)) ||\
+		    ((BN) && ((P)->header.maxslot > DTPAGEMAXSLOT)))\
+		{\
+			BT_PUTPAGE(MP);\
+			jfs_error((IP)->i_sb, "DT_GETPAGE: dtree page corrupt");\
+			MP = NULL;\
+			RC = -EIO;\
+		}\
+	}\
+}
+
+/* for consistency */
+#define DT_PUTPAGE(MP) BT_PUTPAGE(MP)
+
+#define DT_GETSEARCH(IP, LEAF, BN, MP, P, INDEX) \
+	BT_GETSEARCH(IP, LEAF, BN, MP, dtpage_t, P, INDEX, i_dtroot)
+
+/*
+ * forward references
+ */
+static int dtSplitUp(tid_t tid, struct inode *ip,
+		     struct dtsplit * split, struct btstack * btstack);
+
+static int dtSplitPage(tid_t tid, struct inode *ip, struct dtsplit * split,
+		       struct metapage ** rmpp, dtpage_t ** rpp, pxd_t * rxdp);
+
+static int dtExtendPage(tid_t tid, struct inode *ip,
+			struct dtsplit * split, struct btstack * btstack);
+
+static int dtSplitRoot(tid_t tid, struct inode *ip,
+		       struct dtsplit * split, struct metapage ** rmpp);
+
+static int dtDeleteUp(tid_t tid, struct inode *ip, struct metapage * fmp,
+		      dtpage_t * fp, struct btstack * btstack);
+
+static int dtRelink(tid_t tid, struct inode *ip, dtpage_t * p);
+
+static int dtReadFirst(struct inode *ip, struct btstack * btstack);
+
+static int dtReadNext(struct inode *ip,
+		      loff_t * offset, struct btstack * btstack);
+
+static int dtCompare(struct component_name * key, dtpage_t * p, int si);
+
+static int ciCompare(struct component_name * key, dtpage_t * p, int si,
+		     int flag);
+
+static void dtGetKey(dtpage_t * p, int i, struct component_name * key,
+		     int flag);
+
+static int ciGetLeafPrefixKey(dtpage_t * lp, int li, dtpage_t * rp,
+			      int ri, struct component_name * key, int flag);
+
+static void dtInsertEntry(dtpage_t * p, int index, struct component_name * key,
+			  ddata_t * data, struct dt_lock **);
+
+static void dtMoveEntry(dtpage_t * sp, int si, dtpage_t * dp,
+			struct dt_lock ** sdtlock, struct dt_lock ** ddtlock,
+			int do_index);
+
+static void dtDeleteEntry(dtpage_t * p, int fi, struct dt_lock ** dtlock);
+
+static void dtTruncateEntry(dtpage_t * p, int ti, struct dt_lock ** dtlock);
+
+static void dtLinelockFreelist(dtpage_t * p, int m, struct dt_lock ** dtlock);
+
+#define ciToUpper(c)	UniStrupr((c)->name)
+
+/*
+ *	read_index_page()
+ *
+ *	Reads a page of a directory's index table.
+ *	Having metadata mapped into the directory inode's address space
+ *	presents a multitude of problems.  We avoid this by mapping to
+ *	the absolute address space outside of the *_metapage routines
+ */
+static struct metapage *read_index_page(struct inode *inode, s64 blkno)
+{
+	int rc;
+	s64 xaddr;
+	int xflag;
+	s32 xlen;
+
+	rc = xtLookup(inode, blkno, 1, &xflag, &xaddr, &xlen, 1);
+	if (rc || (xlen == 0))
+		return NULL;
+
+	return read_metapage(inode, xaddr, PSIZE, 1);
+}
+
+/*
+ *	get_index_page()
+ *
+ *	Same as get_index_page(), but get's a new page without reading
+ */
+static struct metapage *get_index_page(struct inode *inode, s64 blkno)
+{
+	int rc;
+	s64 xaddr;
+	int xflag;
+	s32 xlen;
+
+	rc = xtLookup(inode, blkno, 1, &xflag, &xaddr, &xlen, 1);
+	if (rc || (xlen == 0))
+		return NULL;
+
+	return get_metapage(inode, xaddr, PSIZE, 1);
+}
+
+/*
+ *	find_index()
+ *
+ *	Returns dtree page containing directory table entry for specified
+ *	index and pointer to its entry.
+ *
+ *	mp must be released by caller.
+ */
+static struct dir_table_slot *find_index(struct inode *ip, u32 index,
+					 struct metapage ** mp, s64 *lblock)
+{
+	struct jfs_inode_info *jfs_ip = JFS_IP(ip);
+	s64 blkno;
+	s64 offset;
+	int page_offset;
+	struct dir_table_slot *slot;
+	static int maxWarnings = 10;
+
+	if (index < 2) {
+		if (maxWarnings) {
+			jfs_warn("find_entry called with index = %d", index);
+			maxWarnings--;
+		}
+		return 0;
+	}
+
+	if (index >= jfs_ip->next_index) {
+		jfs_warn("find_entry called with index >= next_index");
+		return 0;
+	}
+
+	if (jfs_ip->next_index <= (MAX_INLINE_DIRTABLE_ENTRY + 1)) {
+		/*
+		 * Inline directory table
+		 */
+		*mp = 0;
+		slot = &jfs_ip->i_dirtable[index - 2];
+	} else {
+		offset = (index - 2) * sizeof(struct dir_table_slot);
+		page_offset = offset & (PSIZE - 1);
+		blkno = ((offset + 1) >> L2PSIZE) <<
+		    JFS_SBI(ip->i_sb)->l2nbperpage;
+
+		if (*mp && (*lblock != blkno)) {
+			release_metapage(*mp);
+			*mp = 0;
+		}
+		if (*mp == 0) {
+			*lblock = blkno;
+			*mp = read_index_page(ip, blkno);
+		}
+		if (*mp == 0) {
+			jfs_err("free_index: error reading directory table");
+			return 0;
+		}
+
+		slot =
+		    (struct dir_table_slot *) ((char *) (*mp)->data +
+					       page_offset);
+	}
+	return slot;
+}
+
+static inline void lock_index(tid_t tid, struct inode *ip, struct metapage * mp,
+			      u32 index)
+{
+	struct tlock *tlck;
+	struct linelock *llck;
+	struct lv *lv;
+
+	tlck = txLock(tid, ip, mp, tlckDATA);
+	llck = (struct linelock *) tlck->lock;
+
+	if (llck->index >= llck->maxcnt)
+		llck = txLinelock(llck);
+	lv = &llck->lv[llck->index];
+
+	/*
+	 *      Linelock slot size is twice the size of directory table
+	 *      slot size.  512 entries per page.
+	 */
+	lv->offset = ((index - 2) & 511) >> 1;
+	lv->length = 1;
+	llck->index++;
+}
+
+/*
+ *	add_index()
+ *
+ *	Adds an entry to the directory index table.  This is used to provide
+ *	each directory entry with a persistent index in which to resume
+ *	directory traversals
+ */
+static u32 add_index(tid_t tid, struct inode *ip, s64 bn, int slot)
+{
+	struct super_block *sb = ip->i_sb;
+	struct jfs_sb_info *sbi = JFS_SBI(sb);
+	struct jfs_inode_info *jfs_ip = JFS_IP(ip);
+	u64 blkno;
+	struct dir_table_slot *dirtab_slot;
+	u32 index;
+	struct linelock *llck;
+	struct lv *lv;
+	struct metapage *mp;
+	s64 offset;
+	uint page_offset;
+	struct tlock *tlck;
+	s64 xaddr;
+
+	ASSERT(DO_INDEX(ip));
+
+	if (jfs_ip->next_index < 2) {
+		jfs_warn("add_index: next_index = %d.  Resetting!",
+			   jfs_ip->next_index);
+		jfs_ip->next_index = 2;
+	}
+
+	index = jfs_ip->next_index++;
+
+	if (index <= MAX_INLINE_DIRTABLE_ENTRY) {
+		/*
+		 * i_size reflects size of index table, or 8 bytes per entry.
+		 */
+		ip->i_size = (loff_t) (index - 1) << 3;
+
+		/*
+		 * dir table fits inline within inode
+		 */
+		dirtab_slot = &jfs_ip->i_dirtable[index-2];
+		dirtab_slot->flag = DIR_INDEX_VALID;
+		dirtab_slot->slot = slot;
+		DTSaddress(dirtab_slot, bn);
+
+		set_cflag(COMMIT_Dirtable, ip);
+
+		return index;
+	}
+	if (index == (MAX_INLINE_DIRTABLE_ENTRY + 1)) {
+		struct dir_table_slot temp_table[12];
+
+		/*
+		 * It's time to move the inline table to an external
+		 * page and begin to build the xtree
+		 */
+		if (dbAlloc(ip, 0, sbi->nbperpage, &xaddr))
+			goto clean_up;	/* No space */
+
+		/*
+		 * Save the table, we're going to overwrite it with the
+		 * xtree root
+		 */
+		memcpy(temp_table, &jfs_ip->i_dirtable, sizeof(temp_table));
+
+		/*
+		 * Initialize empty x-tree
+		 */
+		xtInitRoot(tid, ip);
+
+		/*
+		 * Allocate the first block & add it to the xtree
+		 */
+		if (xtInsert(tid, ip, 0, 0, sbi->nbperpage, &xaddr, 0)) {
+			/* This really shouldn't fail */
+			jfs_warn("add_index: xtInsert failed!");
+			memcpy(&jfs_ip->i_dirtable, temp_table,
+			       sizeof (temp_table));
+			goto clean_up;
+		}
+		ip->i_size = PSIZE;
+		ip->i_blocks += LBLK2PBLK(sb, sbi->nbperpage);
+
+		if ((mp = get_index_page(ip, 0)) == 0) {
+			jfs_err("add_index: get_metapage failed!");
+			xtTruncate(tid, ip, 0, COMMIT_PWMAP);
+			memcpy(&jfs_ip->i_dirtable, temp_table,
+			       sizeof (temp_table));
+			goto clean_up;
+		}
+		tlck = txLock(tid, ip, mp, tlckDATA);
+		llck = (struct linelock *) & tlck->lock;
+		ASSERT(llck->index == 0);
+		lv = &llck->lv[0];
+
+		lv->offset = 0;
+		lv->length = 6;	/* tlckDATA slot size is 16 bytes */
+		llck->index++;
+
+		memcpy(mp->data, temp_table, sizeof(temp_table));
+
+		mark_metapage_dirty(mp);
+		release_metapage(mp);
+
+		/*
+		 * Logging is now directed by xtree tlocks
+		 */
+		clear_cflag(COMMIT_Dirtable, ip);
+	}
+
+	offset = (index - 2) * sizeof(struct dir_table_slot);
+	page_offset = offset & (PSIZE - 1);
+	blkno = ((offset + 1) >> L2PSIZE) << sbi->l2nbperpage;
+	if (page_offset == 0) {
+		/*
+		 * This will be the beginning of a new page
+		 */
+		xaddr = 0;
+		if (xtInsert(tid, ip, 0, blkno, sbi->nbperpage, &xaddr, 0)) {
+			jfs_warn("add_index: xtInsert failed!");
+			goto clean_up;
+		}
+		ip->i_size += PSIZE;
+		ip->i_blocks += LBLK2PBLK(sb, sbi->nbperpage);
+
+		if ((mp = get_index_page(ip, blkno)))
+			memset(mp->data, 0, PSIZE);	/* Just looks better */
+		else
+			xtTruncate(tid, ip, offset, COMMIT_PWMAP);
+	} else
+		mp = read_index_page(ip, blkno);
+
+	if (mp == 0) {
+		jfs_err("add_index: get/read_metapage failed!");
+		goto clean_up;
+	}
+
+	lock_index(tid, ip, mp, index);
+
+	dirtab_slot =
+	    (struct dir_table_slot *) ((char *) mp->data + page_offset);
+	dirtab_slot->flag = DIR_INDEX_VALID;
+	dirtab_slot->slot = slot;
+	DTSaddress(dirtab_slot, bn);
+
+	mark_metapage_dirty(mp);
+	release_metapage(mp);
+
+	return index;
+
+      clean_up:
+
+	jfs_ip->next_index--;
+
+	return 0;
+}
+
+/*
+ *	free_index()
+ *
+ *	Marks an entry to the directory index table as free.
+ */
+static void free_index(tid_t tid, struct inode *ip, u32 index, u32 next)
+{
+	struct dir_table_slot *dirtab_slot;
+	s64 lblock;
+	struct metapage *mp = 0;
+
+	dirtab_slot = find_index(ip, index, &mp, &lblock);
+
+	if (dirtab_slot == 0)
+		return;
+
+	dirtab_slot->flag = DIR_INDEX_FREE;
+	dirtab_slot->slot = dirtab_slot->addr1 = 0;
+	dirtab_slot->addr2 = cpu_to_le32(next);
+
+	if (mp) {
+		lock_index(tid, ip, mp, index);
+		mark_metapage_dirty(mp);
+		release_metapage(mp);
+	} else
+		set_cflag(COMMIT_Dirtable, ip);
+}
+
+/*
+ *	modify_index()
+ *
+ *	Changes an entry in the directory index table
+ */
+static void modify_index(tid_t tid, struct inode *ip, u32 index, s64 bn,
+			 int slot, struct metapage ** mp, u64 *lblock)
+{
+	struct dir_table_slot *dirtab_slot;
+
+	dirtab_slot = find_index(ip, index, mp, lblock);
+
+	if (dirtab_slot == 0)
+		return;
+
+	DTSaddress(dirtab_slot, bn);
+	dirtab_slot->slot = slot;
+
+	if (*mp) {
+		lock_index(tid, ip, *mp, index);
+		mark_metapage_dirty(*mp);
+	} else
+		set_cflag(COMMIT_Dirtable, ip);
+}
+
+/*
+ *	read_index()
+ *
+ *	reads a directory table slot
+ */
+static int read_index(struct inode *ip, u32 index,
+		     struct dir_table_slot * dirtab_slot)
+{
+	s64 lblock;
+	struct metapage *mp = 0;
+	struct dir_table_slot *slot;
+
+	slot = find_index(ip, index, &mp, &lblock);
+	if (slot == 0) {
+		return -EIO;
+	}
+
+	memcpy(dirtab_slot, slot, sizeof(struct dir_table_slot));
+
+	if (mp)
+		release_metapage(mp);
+
+	return 0;
+}
+
+/*
+ *	dtSearch()
+ *
+ * function:
+ *	Search for the entry with specified key
+ *
+ * parameter:
+ *
+ * return: 0 - search result on stack, leaf page pinned;
+ *	   errno - I/O error
+ */
+int dtSearch(struct inode *ip, struct component_name * key, ino_t * data,
+	     struct btstack * btstack, int flag)
+{
+	int rc = 0;
+	int cmp = 1;		/* init for empty page */
+	s64 bn;
+	struct metapage *mp;
+	dtpage_t *p;
+	s8 *stbl;
+	int base, index, lim;
+	struct btframe *btsp;
+	pxd_t *pxd;
+	int psize = 288;	/* initial in-line directory */
+	ino_t inumber;
+	struct component_name ciKey;
+	struct super_block *sb = ip->i_sb;
+
+	ciKey.name =
+	    (wchar_t *) kmalloc((JFS_NAME_MAX + 1) * sizeof(wchar_t),
+				GFP_NOFS);
+	if (ciKey.name == 0) {
+		rc = -ENOMEM;
+		goto dtSearch_Exit2;
+	}
+
+
+	/* uppercase search key for c-i directory */
+	UniStrcpy(ciKey.name, key->name);
+	ciKey.namlen = key->namlen;
+
+	/* only uppercase if case-insensitive support is on */
+	if ((JFS_SBI(sb)->mntflag & JFS_OS2) == JFS_OS2) {
+		ciToUpper(&ciKey);
+	}
+	BT_CLR(btstack);	/* reset stack */
+
+	/* init level count for max pages to split */
+	btstack->nsplit = 1;
+
+	/*
+	 *      search down tree from root:
+	 *
+	 * between two consecutive entries of <Ki, Pi> and <Kj, Pj> of
+	 * internal page, child page Pi contains entry with k, Ki <= K < Kj.
+	 *
+	 * if entry with search key K is not found
+	 * internal page search find the entry with largest key Ki
+	 * less than K which point to the child page to search;
+	 * leaf page search find the entry with smallest key Kj
+	 * greater than K so that the returned index is the position of
+	 * the entry to be shifted right for insertion of new entry.
+	 * for empty tree, search key is greater than any key of the tree.
+	 *
+	 * by convention, root bn = 0.
+	 */
+	for (bn = 0;;) {
+		/* get/pin the page to search */
+		DT_GETPAGE(ip, bn, mp, psize, p, rc);
+		if (rc)
+			goto dtSearch_Exit1;
+
+		/* get sorted entry table of the page */
+		stbl = DT_GETSTBL(p);
+
+		/*
+		 * binary search with search key K on the current page.
+		 */
+		for (base = 0, lim = p->header.nextindex; lim; lim >>= 1) {
+			index = base + (lim >> 1);
+
+			if (p->header.flag & BT_LEAF) {
+				/* uppercase leaf name to compare */
+				cmp =
+				    ciCompare(&ciKey, p, stbl[index],
+					      JFS_SBI(sb)->mntflag);
+			} else {
+				/* router key is in uppercase */
+
+				cmp = dtCompare(&ciKey, p, stbl[index]);
+
+
+			}
+			if (cmp == 0) {
+				/*
+				 *      search hit
+				 */
+				/* search hit - leaf page:
+				 * return the entry found
+				 */
+				if (p->header.flag & BT_LEAF) {
+					inumber = le32_to_cpu(
+			((struct ldtentry *) & p->slot[stbl[index]])->inumber);
+
+					/*
+					 * search for JFS_LOOKUP
+					 */
+					if (flag == JFS_LOOKUP) {
+						*data = inumber;
+						rc = 0;
+						goto out;
+					}
+
+					/*
+					 * search for JFS_CREATE
+					 */
+					if (flag == JFS_CREATE) {
+						*data = inumber;
+						rc = -EEXIST;
+						goto out;
+					}
+
+					/*
+					 * search for JFS_REMOVE or JFS_RENAME
+					 */
+					if ((flag == JFS_REMOVE ||
+					     flag == JFS_RENAME) &&
+					    *data != inumber) {
+						rc = -ESTALE;
+						goto out;
+					}
+
+					/*
+					 * JFS_REMOVE|JFS_FINDDIR|JFS_RENAME
+					 */
+					/* save search result */
+					*data = inumber;
+					btsp = btstack->top;
+					btsp->bn = bn;
+					btsp->index = index;
+					btsp->mp = mp;
+
+					rc = 0;
+					goto dtSearch_Exit1;
+				}
+
+				/* search hit - internal page:
+				 * descend/search its child page
+				 */
+				goto getChild;
+			}
+
+			if (cmp > 0) {
+				base = index + 1;
+				--lim;
+			}
+		}
+
+		/*
+		 *      search miss
+		 *
+		 * base is the smallest index with key (Kj) greater than
+		 * search key (K) and may be zero or (maxindex + 1) index.
+		 */
+		/*
+		 * search miss - leaf page
+		 *
+		 * return location of entry (base) where new entry with
+		 * search key K is to be inserted.
+		 */
+		if (p->header.flag & BT_LEAF) {
+			/*
+			 * search for JFS_LOOKUP, JFS_REMOVE, or JFS_RENAME
+			 */
+			if (flag == JFS_LOOKUP || flag == JFS_REMOVE ||
+			    flag == JFS_RENAME) {
+				rc = -ENOENT;
+				goto out;
+			}
+
+			/*
+			 * search for JFS_CREATE|JFS_FINDDIR:
+			 *
+			 * save search result
+			 */
+			*data = 0;
+			btsp = btstack->top;
+			btsp->bn = bn;
+			btsp->index = base;
+			btsp->mp = mp;
+
+			rc = 0;
+			goto dtSearch_Exit1;
+		}
+
+		/*
+		 * search miss - internal page
+		 *
+		 * if base is non-zero, decrement base by one to get the parent
+		 * entry of the child page to search.
+		 */
+		index = base ? base - 1 : base;
+
+		/*
+		 * go down to child page
+		 */
+	      getChild:
+		/* update max. number of pages to split */
+		if (BT_STACK_FULL(btstack)) {
+			/* Something's corrupted, mark filesytem dirty so
+			 * chkdsk will fix it.
+			 */
+			jfs_error(sb, "stack overrun in dtSearch!");
+			BT_STACK_DUMP(btstack);
+			rc = -EIO;
+			goto out;
+		}
+		btstack->nsplit++;
+
+		/* push (bn, index) of the parent page/entry */
+		BT_PUSH(btstack, bn, index);
+
+		/* get the child page block number */
+		pxd = (pxd_t *) & p->slot[stbl[index]];
+		bn = addressPXD(pxd);
+		psize = lengthPXD(pxd) << JFS_SBI(ip->i_sb)->l2bsize;
+
+		/* unpin the parent page */
+		DT_PUTPAGE(mp);
+	}
+
+      out:
+	DT_PUTPAGE(mp);
+
+      dtSearch_Exit1:
+
+	kfree(ciKey.name);
+
+      dtSearch_Exit2:
+
+	return rc;
+}
+
+
+/*
+ *	dtInsert()
+ *
+ * function: insert an entry to directory tree
+ *
+ * parameter:
+ *
+ * return: 0 - success;
+ *	   errno - failure;
+ */
+int dtInsert(tid_t tid, struct inode *ip,
+	 struct component_name * name, ino_t * fsn, struct btstack * btstack)
+{
+	int rc = 0;
+	struct metapage *mp;	/* meta-page buffer */
+	dtpage_t *p;		/* base B+-tree index page */
+	s64 bn;
+	int index;
+	struct dtsplit split;	/* split information */
+	ddata_t data;
+	struct dt_lock *dtlck;
+	int n;
+	struct tlock *tlck;
+	struct lv *lv;
+
+	/*
+	 *      retrieve search result
+	 *
+	 * dtSearch() returns (leaf page pinned, index at which to insert).
+	 * n.b. dtSearch() may return index of (maxindex + 1) of
+	 * the full page.
+	 */
+	DT_GETSEARCH(ip, btstack->top, bn, mp, p, index);
+
+	/*
+	 *      insert entry for new key
+	 */
+	if (DO_INDEX(ip)) {
+		if (JFS_IP(ip)->next_index == DIREND) {
+			DT_PUTPAGE(mp);
+			return -EMLINK;
+		}
+		n = NDTLEAF(name->namlen);
+		data.leaf.tid = tid;
+		data.leaf.ip = ip;
+	} else {
+		n = NDTLEAF_LEGACY(name->namlen);
+		data.leaf.ip = 0;	/* signifies legacy directory format */
+	}
+	data.leaf.ino = cpu_to_le32(*fsn);
+
+	/*
+	 *      leaf page does not have enough room for new entry:
+	 *
+	 *      extend/split the leaf page;
+	 *
+	 * dtSplitUp() will insert the entry and unpin the leaf page.
+	 */
+	if (n > p->header.freecnt) {
+		split.mp = mp;
+		split.index = index;
+		split.nslot = n;
+		split.key = name;
+		split.data = &data;
+		rc = dtSplitUp(tid, ip, &split, btstack);
+		return rc;
+	}
+
+	/*
+	 *      leaf page does have enough room for new entry:
+	 *
+	 *      insert the new data entry into the leaf page;
+	 */
+	BT_MARK_DIRTY(mp, ip);
+	/*
+	 * acquire a transaction lock on the leaf page
+	 */
+	tlck = txLock(tid, ip, mp, tlckDTREE | tlckENTRY);
+	dtlck = (struct dt_lock *) & tlck->lock;
+	ASSERT(dtlck->index == 0);
+	lv = & dtlck->lv[0];
+
+	/* linelock header */
+	lv->offset = 0;
+	lv->length = 1;
+	dtlck->index++;
+
+	dtInsertEntry(p, index, name, &data, &dtlck);
+
+	/* linelock stbl of non-root leaf page */
+	if (!(p->header.flag & BT_ROOT)) {
+		if (dtlck->index >= dtlck->maxcnt)
+			dtlck = (struct dt_lock *) txLinelock(dtlck);
+		lv = & dtlck->lv[dtlck->index];
+		n = index >> L2DTSLOTSIZE;
+		lv->offset = p->header.stblindex + n;
+		lv->length =
+		    ((p->header.nextindex - 1) >> L2DTSLOTSIZE) - n + 1;
+		dtlck->index++;
+	}
+
+	/* unpin the leaf page */
+	DT_PUTPAGE(mp);
+
+	return 0;
+}
+
+
+/*
+ *	dtSplitUp()
+ *
+ * function: propagate insertion bottom up;
+ *
+ * parameter:
+ *
+ * return: 0 - success;
+ *	   errno - failure;
+ * 	leaf page unpinned;
+ */
+static int dtSplitUp(tid_t tid,
+	  struct inode *ip, struct dtsplit * split, struct btstack * btstack)
+{
+	struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb);
+	int rc = 0;
+	struct metapage *smp;
+	dtpage_t *sp;		/* split page */
+	struct metapage *rmp;
+	dtpage_t *rp;		/* new right page split from sp */
+	pxd_t rpxd;		/* new right page extent descriptor */
+	struct metapage *lmp;
+	dtpage_t *lp;		/* left child page */
+	int skip;		/* index of entry of insertion */
+	struct btframe *parent;	/* parent page entry on traverse stack */
+	s64 xaddr, nxaddr;
+	int xlen, xsize;
+	struct pxdlist pxdlist;
+	pxd_t *pxd;
+	struct component_name key = { 0, 0 };
+	ddata_t *data = split->data;
+	int n;
+	struct dt_lock *dtlck;
+	struct tlock *tlck;
+	struct lv *lv;
+
+	/* get split page */
+	smp = split->mp;
+	sp = DT_PAGE(ip, smp);
+
+	key.name =
+	    (wchar_t *) kmalloc((JFS_NAME_MAX + 2) * sizeof(wchar_t),
+				GFP_NOFS);
+	if (key.name == 0) {
+		DT_PUTPAGE(smp);
+		rc = -ENOMEM;
+		goto dtSplitUp_Exit;
+	}
+
+	/*
+	 *      split leaf page
+	 *
+	 * The split routines insert the new entry, and
+	 * acquire txLock as appropriate.
+	 */
+	/*
+	 *      split root leaf page:
+	 */
+	if (sp->header.flag & BT_ROOT) {
+		/*
+		 * allocate a single extent child page
+		 */
+		xlen = 1;
+		n = sbi->bsize >> L2DTSLOTSIZE;
+		n -= (n + 31) >> L2DTSLOTSIZE;	/* stbl size */
+		n -= DTROOTMAXSLOT - sp->header.freecnt; /* header + entries */
+		if (n <= split->nslot)
+			xlen++;
+		if ((rc = dbAlloc(ip, 0, (s64) xlen, &xaddr))) {
+			DT_PUTPAGE(smp);
+			goto freeKeyName;
+		}
+
+		pxdlist.maxnpxd = 1;
+		pxdlist.npxd = 0;
+		pxd = &pxdlist.pxd[0];
+		PXDaddress(pxd, xaddr);
+		PXDlength(pxd, xlen);
+		split->pxdlist = &pxdlist;
+		rc = dtSplitRoot(tid, ip, split, &rmp);
+
+		if (!rc)
+			DT_PUTPAGE(rmp);
+
+		DT_PUTPAGE(smp);
+
+		goto freeKeyName;
+	}
+
+	/*
+	 *      extend first leaf page
+	 *
+	 * extend the 1st extent if less than buffer page size
+	 * (dtExtendPage() reurns leaf page unpinned)
+	 */
+	pxd = &sp->header.self;
+	xlen = lengthPXD(pxd);
+	xsize = xlen << sbi->l2bsize;
+	if (xsize < PSIZE) {
+		xaddr = addressPXD(pxd);
+		n = xsize >> L2DTSLOTSIZE;
+		n -= (n + 31) >> L2DTSLOTSIZE;	/* stbl size */
+		if ((n + sp->header.freecnt) <= split->nslot)
+			n = xlen + (xlen << 1);
+		else
+			n = xlen;
+		if ((rc = dbReAlloc(sbi->ipbmap, xaddr, (s64) xlen,
+				    (s64) n, &nxaddr)))
+			goto extendOut;
+
+		pxdlist.maxnpxd = 1;
+		pxdlist.npxd = 0;
+		pxd = &pxdlist.pxd[0];
+		PXDaddress(pxd, nxaddr)
+		    PXDlength(pxd, xlen + n);
+		split->pxdlist = &pxdlist;
+		if ((rc = dtExtendPage(tid, ip, split, btstack))) {
+			nxaddr = addressPXD(pxd);
+			if (xaddr != nxaddr) {
+				/* free relocated extent */
+				xlen = lengthPXD(pxd);
+				dbFree(ip, nxaddr, (s64) xlen);
+			} else {
+				/* free extended delta */
+				xlen = lengthPXD(pxd) - n;
+				xaddr = addressPXD(pxd) + xlen;
+				dbFree(ip, xaddr, (s64) n);
+			}
+		}
+
+	      extendOut:
+		DT_PUTPAGE(smp);
+		goto freeKeyName;
+	}
+
+	/*
+	 *      split leaf page <sp> into <sp> and a new right page <rp>.
+	 *
+	 * return <rp> pinned and its extent descriptor <rpxd>
+	 */
+	/*
+	 * allocate new directory page extent and
+	 * new index page(s) to cover page split(s)
+	 *
+	 * allocation hint: ?
+	 */
+	n = btstack->nsplit;
+	pxdlist.maxnpxd = pxdlist.npxd = 0;
+	xlen = sbi->nbperpage;
+	for (pxd = pxdlist.pxd; n > 0; n--, pxd++) {
+		if ((rc = dbAlloc(ip, 0, (s64) xlen, &xaddr)) == 0) {
+			PXDaddress(pxd, xaddr);
+			PXDlength(pxd, xlen);
+			pxdlist.maxnpxd++;
+			continue;
+		}
+
+		DT_PUTPAGE(smp);
+
+		/* undo allocation */
+		goto splitOut;
+	}
+
+	split->pxdlist = &pxdlist;
+	if ((rc = dtSplitPage(tid, ip, split, &rmp, &rp, &rpxd))) {
+		DT_PUTPAGE(smp);
+
+		/* undo allocation */
+		goto splitOut;
+	}
+
+	/*
+	 * propagate up the router entry for the leaf page just split
+	 *
+	 * insert a router entry for the new page into the parent page,
+	 * propagate the insert/split up the tree by walking back the stack
+	 * of (bn of parent page, index of child page entry in parent page)
+	 * that were traversed during the search for the page that split.
+	 *
+	 * the propagation of insert/split up the tree stops if the root
+	 * splits or the page inserted into doesn't have to split to hold
+	 * the new entry.
+	 *
+	 * the parent entry for the split page remains the same, and
+	 * a new entry is inserted at its right with the first key and
+	 * block number of the new right page.
+	 *
+	 * There are a maximum of 4 pages pinned at any time:
+	 * two children, left parent and right parent (when the parent splits).
+	 * keep the child pages pinned while working on the parent.
+	 * make sure that all pins are released at exit.
+	 */
+	while ((parent = BT_POP(btstack)) != NULL) {
+		/* parent page specified by stack frame <parent> */
+
+		/* keep current child pages (<lp>, <rp>) pinned */
+		lmp = smp;
+		lp = sp;
+
+		/*
+		 * insert router entry in parent for new right child page <rp>
+		 */
+		/* get the parent page <sp> */
+		DT_GETPAGE(ip, parent->bn, smp, PSIZE, sp, rc);
+		if (rc) {
+			DT_PUTPAGE(lmp);
+			DT_PUTPAGE(rmp);
+			goto splitOut;
+		}
+
+		/*
+		 * The new key entry goes ONE AFTER the index of parent entry,
+		 * because the split was to the right.
+		 */
+		skip = parent->index + 1;
+
+		/*
+		 * compute the key for the router entry
+		 *
+		 * key suffix compression:
+		 * for internal pages that have leaf pages as children,
+		 * retain only what's needed to distinguish between
+		 * the new entry and the entry on the page to its left.
+		 * If the keys compare equal, retain the entire key.
+		 *
+		 * note that compression is performed only at computing
+		 * router key at the lowest internal level.
+		 * further compression of the key between pairs of higher
+		 * level internal pages loses too much information and
+		 * the search may fail.
+		 * (e.g., two adjacent leaf pages of {a, ..., x} {xx, ...,}
+		 * results in two adjacent parent entries (a)(xx).
+		 * if split occurs between these two entries, and
+		 * if compression is applied, the router key of parent entry
+		 * of right page (x) will divert search for x into right
+		 * subtree and miss x in the left subtree.)
+		 *
+		 * the entire key must be retained for the next-to-leftmost
+		 * internal key at any level of the tree, or search may fail
+		 * (e.g., ?)
+		 */
+		switch (rp->header.flag & BT_TYPE) {
+		case BT_LEAF:
+			/*
+			 * compute the length of prefix for suffix compression
+			 * between last entry of left page and first entry
+			 * of right page
+			 */
+			if ((sp->header.flag & BT_ROOT && skip > 1) ||
+			    sp->header.prev != 0 || skip > 1) {
+				/* compute uppercase router prefix key */
+				rc = ciGetLeafPrefixKey(lp,
+							lp->header.nextindex-1,
+							rp, 0, &key,
+							sbi->mntflag);
+				if (rc) {
+					DT_PUTPAGE(lmp);
+					DT_PUTPAGE(rmp);
+					DT_PUTPAGE(smp);
+					goto splitOut;
+				}
+			} else {
+				/* next to leftmost entry of
+				   lowest internal level */
+
+				/* compute uppercase router key */
+				dtGetKey(rp, 0, &key, sbi->mntflag);
+				key.name[key.namlen] = 0;
+
+				if ((sbi->mntflag & JFS_OS2) == JFS_OS2)
+					ciToUpper(&key);
+			}
+
+			n = NDTINTERNAL(key.namlen);
+			break;
+
+		case BT_INTERNAL:
+			dtGetKey(rp, 0, &key, sbi->mntflag);
+			n = NDTINTERNAL(key.namlen);
+			break;
+
+		default:
+			jfs_err("dtSplitUp(): UFO!");
+			break;
+		}
+
+		/* unpin left child page */
+		DT_PUTPAGE(lmp);
+
+		/*
+		 * compute the data for the router entry
+		 */
+		data->xd = rpxd;	/* child page xd */
+
+		/*
+		 * parent page is full - split the parent page
+		 */
+		if (n > sp->header.freecnt) {
+			/* init for parent page split */
+			split->mp = smp;
+			split->index = skip;	/* index at insert */
+			split->nslot = n;
+			split->key = &key;
+			/* split->data = data; */
+
+			/* unpin right child page */
+			DT_PUTPAGE(rmp);
+
+			/* The split routines insert the new entry,
+			 * acquire txLock as appropriate.
+			 * return <rp> pinned and its block number <rbn>.
+			 */
+			rc = (sp->header.flag & BT_ROOT) ?
+			    dtSplitRoot(tid, ip, split, &rmp) :
+			    dtSplitPage(tid, ip, split, &rmp, &rp, &rpxd);
+			if (rc) {
+				DT_PUTPAGE(smp);
+				goto splitOut;
+			}
+
+			/* smp and rmp are pinned */
+		}
+		/*
+		 * parent page is not full - insert router entry in parent page
+		 */
+		else {
+			BT_MARK_DIRTY(smp, ip);
+			/*
+			 * acquire a transaction lock on the parent page
+			 */
+			tlck = txLock(tid, ip, smp, tlckDTREE | tlckENTRY);
+			dtlck = (struct dt_lock *) & tlck->lock;
+			ASSERT(dtlck->index == 0);
+			lv = & dtlck->lv[0];
+
+			/* linelock header */
+			lv->offset = 0;
+			lv->length = 1;
+			dtlck->index++;
+
+			/* linelock stbl of non-root parent page */
+			if (!(sp->header.flag & BT_ROOT)) {
+				lv++;
+				n = skip >> L2DTSLOTSIZE;
+				lv->offset = sp->header.stblindex + n;
+				lv->length =
+				    ((sp->header.nextindex -
+				      1) >> L2DTSLOTSIZE) - n + 1;
+				dtlck->index++;
+			}
+
+			dtInsertEntry(sp, skip, &key, data, &dtlck);
+
+			/* exit propagate up */
+			break;
+		}
+	}
+
+	/* unpin current split and its right page */
+	DT_PUTPAGE(smp);
+	DT_PUTPAGE(rmp);
+
+	/*
+	 * free remaining extents allocated for split
+	 */
+      splitOut:
+	n = pxdlist.npxd;
+	pxd = &pxdlist.pxd[n];
+	for (; n < pxdlist.maxnpxd; n++, pxd++)
+		dbFree(ip, addressPXD(pxd), (s64) lengthPXD(pxd));
+
+      freeKeyName:
+	kfree(key.name);
+
+      dtSplitUp_Exit:
+
+	return rc;
+}
+
+
+/*
+ *	dtSplitPage()
+ *
+ * function: Split a non-root page of a btree.
+ *
+ * parameter:
+ *
+ * return: 0 - success;
+ *	   errno - failure;
+ *	return split and new page pinned;
+ */
+static int dtSplitPage(tid_t tid, struct inode *ip, struct dtsplit * split,
+	    struct metapage ** rmpp, dtpage_t ** rpp, pxd_t * rpxdp)
+{
+	struct super_block *sb = ip->i_sb;
+	int rc = 0;
+	struct metapage *smp;
+	dtpage_t *sp;
+	struct metapage *rmp;
+	dtpage_t *rp;		/* new right page allocated */
+	s64 rbn;		/* new right page block number */
+	struct metapage *mp;
+	dtpage_t *p;
+	s64 nextbn;
+	struct pxdlist *pxdlist;
+	pxd_t *pxd;
+	int skip, nextindex, half, left, nxt, off, si;
+	struct ldtentry *ldtentry;
+	struct idtentry *idtentry;
+	u8 *stbl;
+	struct dtslot *f;
+	int fsi, stblsize;
+	int n;
+	struct dt_lock *sdtlck, *rdtlck;
+	struct tlock *tlck;
+	struct dt_lock *dtlck;
+	struct lv *slv, *rlv, *lv;
+
+	/* get split page */
+	smp = split->mp;
+	sp = DT_PAGE(ip, smp);
+
+	/*
+	 * allocate the new right page for the split
+	 */
+	pxdlist = split->pxdlist;
+	pxd = &pxdlist->pxd[pxdlist->npxd];
+	pxdlist->npxd++;
+	rbn = addressPXD(pxd);
+	rmp = get_metapage(ip, rbn, PSIZE, 1);
+	if (rmp == NULL)
+		return -EIO;
+
+	jfs_info("dtSplitPage: ip:0x%p smp:0x%p rmp:0x%p", ip, smp, rmp);
+
+	BT_MARK_DIRTY(rmp, ip);
+	/*
+	 * acquire a transaction lock on the new right page
+	 */
+	tlck = txLock(tid, ip, rmp, tlckDTREE | tlckNEW);
+	rdtlck = (struct dt_lock *) & tlck->lock;
+
+	rp = (dtpage_t *) rmp->data;
+	*rpp = rp;
+	rp->header.self = *pxd;
+
+	BT_MARK_DIRTY(smp, ip);
+	/*
+	 * acquire a transaction lock on the split page
+	 *
+	 * action:
+	 */
+	tlck = txLock(tid, ip, smp, tlckDTREE | tlckENTRY);
+	sdtlck = (struct dt_lock *) & tlck->lock;
+
+	/* linelock header of split page */
+	ASSERT(sdtlck->index == 0);
+	slv = & sdtlck->lv[0];
+	slv->offset = 0;
+	slv->length = 1;
+	sdtlck->index++;
+
+	/*
+	 * initialize/update sibling pointers between sp and rp
+	 */
+	nextbn = le64_to_cpu(sp->header.next);
+	rp->header.next = cpu_to_le64(nextbn);
+	rp->header.prev = cpu_to_le64(addressPXD(&sp->header.self));
+	sp->header.next = cpu_to_le64(rbn);
+
+	/*
+	 * initialize new right page
+	 */
+	rp->header.flag = sp->header.flag;
+
+	/* compute sorted entry table at start of extent data area */
+	rp->header.nextindex = 0;
+	rp->header.stblindex = 1;
+
+	n = PSIZE >> L2DTSLOTSIZE;
+	rp->header.maxslot = n;
+	stblsize = (n + 31) >> L2DTSLOTSIZE;	/* in unit of slot */
+
+	/* init freelist */
+	fsi = rp->header.stblindex + stblsize;
+	rp->header.freelist = fsi;
+	rp->header.freecnt = rp->header.maxslot - fsi;
+
+	/*
+	 *      sequential append at tail: append without split
+	 *
+	 * If splitting the last page on a level because of appending
+	 * a entry to it (skip is maxentry), it's likely that the access is
+	 * sequential. Adding an empty page on the side of the level is less
+	 * work and can push the fill factor much higher than normal.
+	 * If we're wrong it's no big deal, we'll just do the split the right
+	 * way next time.
+	 * (It may look like it's equally easy to do a similar hack for
+	 * reverse sorted data, that is, split the tree left,
+	 * but it's not. Be my guest.)
+	 */
+	if (nextbn == 0 && split->index == sp->header.nextindex) {
+		/* linelock header + stbl (first slot) of new page */
+		rlv = & rdtlck->lv[rdtlck->index];
+		rlv->offset = 0;
+		rlv->length = 2;
+		rdtlck->index++;
+
+		/*
+		 * initialize freelist of new right page
+		 */
+		f = &rp->slot[fsi];
+		for (fsi++; fsi < rp->header.maxslot; f++, fsi++)
+			f->next = fsi;
+		f->next = -1;
+
+		/* insert entry at the first entry of the new right page */
+		dtInsertEntry(rp, 0, split->key, split->data, &rdtlck);
+
+		goto out;
+	}
+
+	/*
+	 *      non-sequential insert (at possibly middle page)
+	 */
+
+	/*
+	 * update prev pointer of previous right sibling page;
+	 */
+	if (nextbn != 0) {
+		DT_GETPAGE(ip, nextbn, mp, PSIZE, p, rc);
+		if (rc) {
+			discard_metapage(rmp);
+			return rc;
+		}
+
+		BT_MARK_DIRTY(mp, ip);
+		/*
+		 * acquire a transaction lock on the next page
+		 */
+		tlck = txLock(tid, ip, mp, tlckDTREE | tlckRELINK);
+		jfs_info("dtSplitPage: tlck = 0x%p, ip = 0x%p, mp=0x%p",
+			tlck, ip, mp);
+		dtlck = (struct dt_lock *) & tlck->lock;
+
+		/* linelock header of previous right sibling page */
+		lv = & dtlck->lv[dtlck->index];
+		lv->offset = 0;
+		lv->length = 1;
+		dtlck->index++;
+
+		p->header.prev = cpu_to_le64(rbn);
+
+		DT_PUTPAGE(mp);
+	}
+
+	/*
+	 * split the data between the split and right pages.
+	 */
+	skip = split->index;
+	half = (PSIZE >> L2DTSLOTSIZE) >> 1;	/* swag */
+	left = 0;
+
+	/*
+	 *      compute fill factor for split pages
+	 *
+	 * <nxt> traces the next entry to move to rp
+	 * <off> traces the next entry to stay in sp
+	 */
+	stbl = (u8 *) & sp->slot[sp->header.stblindex];
+	nextindex = sp->header.nextindex;
+	for (nxt = off = 0; nxt < nextindex; ++off) {
+		if (off == skip)
+			/* check for fill factor with new entry size */
+			n = split->nslot;
+		else {
+			si = stbl[nxt];
+			switch (sp->header.flag & BT_TYPE) {
+			case BT_LEAF:
+				ldtentry = (struct ldtentry *) & sp->slot[si];
+				if (DO_INDEX(ip))
+					n = NDTLEAF(ldtentry->namlen);
+				else
+					n = NDTLEAF_LEGACY(ldtentry->
+							   namlen);
+				break;
+
+			case BT_INTERNAL:
+				idtentry = (struct idtentry *) & sp->slot[si];
+				n = NDTINTERNAL(idtentry->namlen);
+				break;
+
+			default:
+				break;
+			}
+
+			++nxt;	/* advance to next entry to move in sp */
+		}
+
+		left += n;
+		if (left >= half)
+			break;
+	}
+
+	/* <nxt> poins to the 1st entry to move */
+
+	/*
+	 *      move entries to right page
+	 *
+	 * dtMoveEntry() initializes rp and reserves entry for insertion
+	 *
+	 * split page moved out entries are linelocked;
+	 * new/right page moved in entries are linelocked;
+	 */
+	/* linelock header + stbl of new right page */
+	rlv = & rdtlck->lv[rdtlck->index];
+	rlv->offset = 0;
+	rlv->length = 5;
+	rdtlck->index++;
+
+	dtMoveEntry(sp, nxt, rp, &sdtlck, &rdtlck, DO_INDEX(ip));
+
+	sp->header.nextindex = nxt;
+
+	/*
+	 * finalize freelist of new right page
+	 */
+	fsi = rp->header.freelist;
+	f = &rp->slot[fsi];
+	for (fsi++; fsi < rp->header.maxslot; f++, fsi++)
+		f->next = fsi;
+	f->next = -1;
+
+	/*
+	 * Update directory index table for entries now in right page
+	 */
+	if ((rp->header.flag & BT_LEAF) && DO_INDEX(ip)) {
+		s64 lblock;
+
+		mp = 0;
+		stbl = DT_GETSTBL(rp);
+		for (n = 0; n < rp->header.nextindex; n++) {
+			ldtentry = (struct ldtentry *) & rp->slot[stbl[n]];
+			modify_index(tid, ip, le32_to_cpu(ldtentry->index),
+				     rbn, n, &mp, &lblock);
+		}
+		if (mp)
+			release_metapage(mp);
+	}
+
+	/*
+	 * the skipped index was on the left page,
+	 */
+	if (skip <= off) {
+		/* insert the new entry in the split page */
+		dtInsertEntry(sp, skip, split->key, split->data, &sdtlck);
+
+		/* linelock stbl of split page */
+		if (sdtlck->index >= sdtlck->maxcnt)
+			sdtlck = (struct dt_lock *) txLinelock(sdtlck);
+		slv = & sdtlck->lv[sdtlck->index];
+		n = skip >> L2DTSLOTSIZE;
+		slv->offset = sp->header.stblindex + n;
+		slv->length =
+		    ((sp->header.nextindex - 1) >> L2DTSLOTSIZE) - n + 1;
+		sdtlck->index++;
+	}
+	/*
+	 * the skipped index was on the right page,
+	 */
+	else {
+		/* adjust the skip index to reflect the new position */
+		skip -= nxt;
+
+		/* insert the new entry in the right page */
+		dtInsertEntry(rp, skip, split->key, split->data, &rdtlck);
+	}
+
+      out:
+	*rmpp = rmp;
+	*rpxdp = *pxd;
+
+	ip->i_blocks += LBLK2PBLK(sb, lengthPXD(pxd));
+
+	return rc;
+}
+
+
+/*
+ *	dtExtendPage()
+ *
+ * function: extend 1st/only directory leaf page
+ *
+ * parameter:
+ *
+ * return: 0 - success;
+ *	   errno - failure;
+ *	return extended page pinned;
+ */
+static int dtExtendPage(tid_t tid,
+	     struct inode *ip, struct dtsplit * split, struct btstack * btstack)
+{
+	struct super_block *sb = ip->i_sb;
+	int rc;
+	struct metapage *smp, *pmp, *mp;
+	dtpage_t *sp, *pp;
+	struct pxdlist *pxdlist;
+	pxd_t *pxd, *tpxd;
+	int xlen, xsize;
+	int newstblindex, newstblsize;
+	int oldstblindex, oldstblsize;
+	int fsi, last;
+	struct dtslot *f;
+	struct btframe *parent;
+	int n;
+	struct dt_lock *dtlck;
+	s64 xaddr, txaddr;
+	struct tlock *tlck;
+	struct pxd_lock *pxdlock;
+	struct lv *lv;
+	uint type;
+	struct ldtentry *ldtentry;
+	u8 *stbl;
+
+	/* get page to extend */
+	smp = split->mp;
+	sp = DT_PAGE(ip, smp);
+
+	/* get parent/root page */
+	parent = BT_POP(btstack);
+	DT_GETPAGE(ip, parent->bn, pmp, PSIZE, pp, rc);
+	if (rc)
+		return (rc);
+
+	/*
+	 *      extend the extent
+	 */
+	pxdlist = split->pxdlist;
+	pxd = &pxdlist->pxd[pxdlist->npxd];
+	pxdlist->npxd++;
+
+	xaddr = addressPXD(pxd);
+	tpxd = &sp->header.self;
+	txaddr = addressPXD(tpxd);
+	/* in-place extension */
+	if (xaddr == txaddr) {
+		type = tlckEXTEND;
+	}
+	/* relocation */
+	else {
+		type = tlckNEW;
+
+		/* save moved extent descriptor for later free */
+		tlck = txMaplock(tid, ip, tlckDTREE | tlckRELOCATE);
+		pxdlock = (struct pxd_lock *) & tlck->lock;
+		pxdlock->flag = mlckFREEPXD;
+		pxdlock->pxd = sp->header.self;
+		pxdlock->index = 1;
+
+		/*
+		 * Update directory index table to reflect new page address
+		 */
+		if (DO_INDEX(ip)) {
+			s64 lblock;
+
+			mp = 0;
+			stbl = DT_GETSTBL(sp);
+			for (n = 0; n < sp->header.nextindex; n++) {
+				ldtentry =
+				    (struct ldtentry *) & sp->slot[stbl[n]];
+				modify_index(tid, ip,
+					     le32_to_cpu(ldtentry->index),
+					     xaddr, n, &mp, &lblock);
+			}
+			if (mp)
+				release_metapage(mp);
+		}
+	}
+
+	/*
+	 *      extend the page
+	 */
+	sp->header.self = *pxd;
+
+	jfs_info("dtExtendPage: ip:0x%p smp:0x%p sp:0x%p", ip, smp, sp);
+
+	BT_MARK_DIRTY(smp, ip);
+	/*
+	 * acquire a transaction lock on the extended/leaf page
+	 */
+	tlck = txLock(tid, ip, smp, tlckDTREE | type);
+	dtlck = (struct dt_lock *) & tlck->lock;
+	lv = & dtlck->lv[0];
+
+	/* update buffer extent descriptor of extended page */
+	xlen = lengthPXD(pxd);
+	xsize = xlen << JFS_SBI(sb)->l2bsize;
+#ifdef _STILL_TO_PORT
+	bmSetXD(smp, xaddr, xsize);
+#endif				/*  _STILL_TO_PORT */
+
+	/*
+	 * copy old stbl to new stbl at start of extended area
+	 */
+	oldstblindex = sp->header.stblindex;
+	oldstblsize = (sp->header.maxslot + 31) >> L2DTSLOTSIZE;
+	newstblindex = sp->header.maxslot;
+	n = xsize >> L2DTSLOTSIZE;
+	newstblsize = (n + 31) >> L2DTSLOTSIZE;
+	memcpy(&sp->slot[newstblindex], &sp->slot[oldstblindex],
+	       sp->header.nextindex);
+
+	/*
+	 * in-line extension: linelock old area of extended page
+	 */
+	if (type == tlckEXTEND) {
+		/* linelock header */
+		lv->offset = 0;
+		lv->length = 1;
+		dtlck->index++;
+		lv++;
+
+		/* linelock new stbl of extended page */
+		lv->offset = newstblindex;
+		lv->length = newstblsize;
+	}
+	/*
+	 * relocation: linelock whole relocated area
+	 */
+	else {
+		lv->offset = 0;
+		lv->length = sp->header.maxslot + newstblsize;
+	}
+
+	dtlck->index++;
+
+	sp->header.maxslot = n;
+	sp->header.stblindex = newstblindex;
+	/* sp->header.nextindex remains the same */
+
+	/*
+	 * add old stbl region at head of freelist
+	 */
+	fsi = oldstblindex;
+	f = &sp->slot[fsi];
+	last = sp->header.freelist;
+	for (n = 0; n < oldstblsize; n++, fsi++, f++) {
+		f->next = last;
+		last = fsi;
+	}
+	sp->header.freelist = last;
+	sp->header.freecnt += oldstblsize;
+
+	/*
+	 * append free region of newly extended area at tail of freelist
+	 */
+	/* init free region of newly extended area */
+	fsi = n = newstblindex + newstblsize;
+	f = &sp->slot[fsi];
+	for (fsi++; fsi < sp->header.maxslot; f++, fsi++)
+		f->next = fsi;
+	f->next = -1;
+
+	/* append new free region at tail of old freelist */
+	fsi = sp->header.freelist;
+	if (fsi == -1)
+		sp->header.freelist = n;
+	else {
+		do {
+			f = &sp->slot[fsi];
+			fsi = f->next;
+		} while (fsi != -1);
+
+		f->next = n;
+	}
+
+	sp->header.freecnt += sp->header.maxslot - n;
+
+	/*
+	 * insert the new entry
+	 */
+	dtInsertEntry(sp, split->index, split->key, split->data, &dtlck);
+
+	BT_MARK_DIRTY(pmp, ip);
+	/*
+	 * linelock any freeslots residing in old extent
+	 */
+	if (type == tlckEXTEND) {
+		n = sp->header.maxslot >> 2;
+		if (sp->header.freelist < n)
+			dtLinelockFreelist(sp, n, &dtlck);
+	}
+
+	/*
+	 *      update parent entry on the parent/root page
+	 */
+	/*
+	 * acquire a transaction lock on the parent/root page
+	 */
+	tlck = txLock(tid, ip, pmp, tlckDTREE | tlckENTRY);
+	dtlck = (struct dt_lock *) & tlck->lock;
+	lv = & dtlck->lv[dtlck->index];
+
+	/* linelock parent entry - 1st slot */
+	lv->offset = 1;
+	lv->length = 1;
+	dtlck->index++;
+
+	/* update the parent pxd for page extension */
+	tpxd = (pxd_t *) & pp->slot[1];
+	*tpxd = *pxd;
+
+	/* Since the directory might have an EA and/or ACL associated with it
+	 * we need to make sure we take that into account when setting the
+	 * i_nblocks
+	 */
+	ip->i_blocks = LBLK2PBLK(ip->i_sb, xlen +
+				 ((JFS_IP(ip)->ea.flag & DXD_EXTENT) ?
+				  lengthDXD(&JFS_IP(ip)->ea) : 0) +
+				 ((JFS_IP(ip)->acl.flag & DXD_EXTENT) ?
+				  lengthDXD(&JFS_IP(ip)->acl) : 0));
+
+	DT_PUTPAGE(pmp);
+	return 0;
+}
+
+
+/*
+ *	dtSplitRoot()
+ *
+ * function:
+ *	split the full root page into
+ *	original/root/split page and new right page
+ *	i.e., root remains fixed in tree anchor (inode) and
+ *	the root is copied to a single new right child page
+ *	since root page << non-root page, and
+ *	the split root page contains a single entry for the
+ *	new right child page.
+ *
+ * parameter:
+ *
+ * return: 0 - success;
+ *	   errno - failure;
+ *	return new page pinned;
+ */
+static int dtSplitRoot(tid_t tid,
+	    struct inode *ip, struct dtsplit * split, struct metapage ** rmpp)
+{
+	struct super_block *sb = ip->i_sb;
+	struct metapage *smp;
+	dtroot_t *sp;
+	struct metapage *rmp;
+	dtpage_t *rp;
+	s64 rbn;
+	int xlen;
+	int xsize;
+	struct dtslot *f;
+	s8 *stbl;
+	int fsi, stblsize, n;
+	struct idtentry *s;
+	pxd_t *ppxd;
+	struct pxdlist *pxdlist;
+	pxd_t *pxd;
+	struct dt_lock *dtlck;
+	struct tlock *tlck;
+	struct lv *lv;
+
+	/* get split root page */
+	smp = split->mp;
+	sp = &JFS_IP(ip)->i_dtroot;
+
+	/*
+	 *      allocate/initialize a single (right) child page
+	 *
+	 * N.B. at first split, a one (or two) block to fit new entry
+	 * is allocated; at subsequent split, a full page is allocated;
+	 */
+	pxdlist = split->pxdlist;
+	pxd = &pxdlist->pxd[pxdlist->npxd];
+	pxdlist->npxd++;
+	rbn = addressPXD(pxd);
+	xlen = lengthPXD(pxd);
+	xsize = xlen << JFS_SBI(sb)->l2bsize;
+	rmp = get_metapage(ip, rbn, xsize, 1);
+	if (!rmp)
+		return -EIO;
+
+	rp = rmp->data;
+
+	BT_MARK_DIRTY(rmp, ip);
+	/*
+	 * acquire a transaction lock on the new right page
+	 */
+	tlck = txLock(tid, ip, rmp, tlckDTREE | tlckNEW);
+	dtlck = (struct dt_lock *) & tlck->lock;
+
+	rp->header.flag =
+	    (sp->header.flag & BT_LEAF) ? BT_LEAF : BT_INTERNAL;
+	rp->header.self = *pxd;
+
+	/* initialize sibling pointers */
+	rp->header.next = 0;
+	rp->header.prev = 0;
+
+	/*
+	 *      move in-line root page into new right page extent
+	 */
+	/* linelock header + copied entries + new stbl (1st slot) in new page */
+	ASSERT(dtlck->index == 0);
+	lv = & dtlck->lv[0];
+	lv->offset = 0;
+	lv->length = 10;	/* 1 + 8 + 1 */
+	dtlck->index++;
+
+	n = xsize >> L2DTSLOTSIZE;
+	rp->header.maxslot = n;
+	stblsize = (n + 31) >> L2DTSLOTSIZE;
+
+	/* copy old stbl to new stbl at start of extended area */
+	rp->header.stblindex = DTROOTMAXSLOT;
+	stbl = (s8 *) & rp->slot[DTROOTMAXSLOT];
+	memcpy(stbl, sp->header.stbl, sp->header.nextindex);
+	rp->header.nextindex = sp->header.nextindex;
+
+	/* copy old data area to start of new data area */
+	memcpy(&rp->slot[1], &sp->slot[1], IDATASIZE);
+
+	/*
+	 * append free region of newly extended area at tail of freelist
+	 */
+	/* init free region of newly extended area */
+	fsi = n = DTROOTMAXSLOT + stblsize;
+	f = &rp->slot[fsi];
+	for (fsi++; fsi < rp->header.maxslot; f++, fsi++)
+		f->next = fsi;
+	f->next = -1;
+
+	/* append new free region at tail of old freelist */
+	fsi = sp->header.freelist;
+	if (fsi == -1)
+		rp->header.freelist = n;
+	else {
+		rp->header.freelist = fsi;
+
+		do {
+			f = &rp->slot[fsi];
+			fsi = f->next;
+		} while (fsi != -1);
+
+		f->next = n;
+	}
+
+	rp->header.freecnt = sp->header.freecnt + rp->header.maxslot - n;
+
+	/*
+	 * Update directory index table for entries now in right page
+	 */
+	if ((rp->header.flag & BT_LEAF) && DO_INDEX(ip)) {
+		s64 lblock;
+		struct metapage *mp = 0;
+		struct ldtentry *ldtentry;
+
+		stbl = DT_GETSTBL(rp);
+		for (n = 0; n < rp->header.nextindex; n++) {
+			ldtentry = (struct ldtentry *) & rp->slot[stbl[n]];
+			modify_index(tid, ip, le32_to_cpu(ldtentry->index),
+				     rbn, n, &mp, &lblock);
+		}
+		if (mp)
+			release_metapage(mp);
+	}
+	/*
+	 * insert the new entry into the new right/child page
+	 * (skip index in the new right page will not change)
+	 */
+	dtInsertEntry(rp, split->index, split->key, split->data, &dtlck);
+
+	/*
+	 *      reset parent/root page
+	 *
+	 * set the 1st entry offset to 0, which force the left-most key
+	 * at any level of the tree to be less than any search key.
+	 *
+	 * The btree comparison code guarantees that the left-most key on any
+	 * level of the tree is never used, so it doesn't need to be filled in.
+	 */
+	BT_MARK_DIRTY(smp, ip);
+	/*
+	 * acquire a transaction lock on the root page (in-memory inode)
+	 */
+	tlck = txLock(tid, ip, smp, tlckDTREE | tlckNEW | tlckBTROOT);
+	dtlck = (struct dt_lock *) & tlck->lock;
+
+	/* linelock root */
+	ASSERT(dtlck->index == 0);
+	lv = & dtlck->lv[0];
+	lv->offset = 0;
+	lv->length = DTROOTMAXSLOT;
+	dtlck->index++;
+
+	/* update page header of root */
+	if (sp->header.flag & BT_LEAF) {
+		sp->header.flag &= ~BT_LEAF;
+		sp->header.flag |= BT_INTERNAL;
+	}
+
+	/* init the first entry */
+	s = (struct idtentry *) & sp->slot[DTENTRYSTART];
+	ppxd = (pxd_t *) s;
+	*ppxd = *pxd;
+	s->next = -1;
+	s->namlen = 0;
+
+	stbl = sp->header.stbl;
+	stbl[0] = DTENTRYSTART;
+	sp->header.nextindex = 1;
+
+	/* init freelist */
+	fsi = DTENTRYSTART + 1;
+	f = &sp->slot[fsi];
+
+	/* init free region of remaining area */
+	for (fsi++; fsi < DTROOTMAXSLOT; f++, fsi++)
+		f->next = fsi;
+	f->next = -1;
+
+	sp->header.freelist = DTENTRYSTART + 1;
+	sp->header.freecnt = DTROOTMAXSLOT - (DTENTRYSTART + 1);
+
+	*rmpp = rmp;
+
+	ip->i_blocks += LBLK2PBLK(ip->i_sb, lengthPXD(pxd));
+	return 0;
+}
+
+
+/*
+ *	dtDelete()
+ *
+ * function: delete the entry(s) referenced by a key.
+ *
+ * parameter:
+ *
+ * return:
+ */
+int dtDelete(tid_t tid,
+	 struct inode *ip, struct component_name * key, ino_t * ino, int flag)
+{
+	int rc = 0;
+	s64 bn;
+	struct metapage *mp, *imp;
+	dtpage_t *p;
+	int index;
+	struct btstack btstack;
+	struct dt_lock *dtlck;
+	struct tlock *tlck;
+	struct lv *lv;
+	int i;
+	struct ldtentry *ldtentry;
+	u8 *stbl;
+	u32 table_index, next_index;
+	struct metapage *nmp;
+	dtpage_t *np;
+
+	/*
+	 *      search for the entry to delete:
+	 *
+	 * dtSearch() returns (leaf page pinned, index at which to delete).
+	 */
+	if ((rc = dtSearch(ip, key, ino, &btstack, flag)))
+		return rc;
+
+	/* retrieve search result */
+	DT_GETSEARCH(ip, btstack.top, bn, mp, p, index);
+
+	/*
+	 * We need to find put the index of the next entry into the
+	 * directory index table in order to resume a readdir from this
+	 * entry.
+	 */
+	if (DO_INDEX(ip)) {
+		stbl = DT_GETSTBL(p);
+		ldtentry = (struct ldtentry *) & p->slot[stbl[index]];
+		table_index = le32_to_cpu(ldtentry->index);
+		if (index == (p->header.nextindex - 1)) {
+			/*
+			 * Last entry in this leaf page
+			 */
+			if ((p->header.flag & BT_ROOT)
+			    || (p->header.next == 0))
+				next_index = -1;
+			else {
+				/* Read next leaf page */
+				DT_GETPAGE(ip, le64_to_cpu(p->header.next),
+					   nmp, PSIZE, np, rc);
+				if (rc)
+					next_index = -1;
+				else {
+					stbl = DT_GETSTBL(np);
+					ldtentry =
+					    (struct ldtentry *) & np->
+					    slot[stbl[0]];
+					next_index =
+					    le32_to_cpu(ldtentry->index);
+					DT_PUTPAGE(nmp);
+				}
+			}
+		} else {
+			ldtentry =
+			    (struct ldtentry *) & p->slot[stbl[index + 1]];
+			next_index = le32_to_cpu(ldtentry->index);
+		}
+		free_index(tid, ip, table_index, next_index);
+	}
+	/*
+	 * the leaf page becomes empty, delete the page
+	 */
+	if (p->header.nextindex == 1) {
+		/* delete empty page */
+		rc = dtDeleteUp(tid, ip, mp, p, &btstack);
+	}
+	/*
+	 * the leaf page has other entries remaining:
+	 *
+	 * delete the entry from the leaf page.
+	 */
+	else {
+		BT_MARK_DIRTY(mp, ip);
+		/*
+		 * acquire a transaction lock on the leaf page
+		 */
+		tlck = txLock(tid, ip, mp, tlckDTREE | tlckENTRY);
+		dtlck = (struct dt_lock *) & tlck->lock;
+
+		/*
+		 * Do not assume that dtlck->index will be zero.  During a
+		 * rename within a directory, this transaction may have
+		 * modified this page already when adding the new entry.
+		 */
+
+		/* linelock header */
+		if (dtlck->index >= dtlck->maxcnt)
+			dtlck = (struct dt_lock *) txLinelock(dtlck);
+		lv = & dtlck->lv[dtlck->index];
+		lv->offset = 0;
+		lv->length = 1;
+		dtlck->index++;
+
+		/* linelock stbl of non-root leaf page */
+		if (!(p->header.flag & BT_ROOT)) {
+			if (dtlck->index >= dtlck->maxcnt)
+				dtlck = (struct dt_lock *) txLinelock(dtlck);
+			lv = & dtlck->lv[dtlck->index];
+			i = index >> L2DTSLOTSIZE;
+			lv->offset = p->header.stblindex + i;
+			lv->length =
+			    ((p->header.nextindex - 1) >> L2DTSLOTSIZE) -
+			    i + 1;
+			dtlck->index++;
+		}
+
+		/* free the leaf entry */
+		dtDeleteEntry(p, index, &dtlck);
+
+		/*
+		 * Update directory index table for entries moved in stbl
+		 */
+		if (DO_INDEX(ip) && index < p->header.nextindex) {
+			s64 lblock;
+
+			imp = 0;
+			stbl = DT_GETSTBL(p);
+			for (i = index; i < p->header.nextindex; i++) {
+				ldtentry =
+				    (struct ldtentry *) & p->slot[stbl[i]];
+				modify_index(tid, ip,
+					     le32_to_cpu(ldtentry->index),
+					     bn, i, &imp, &lblock);
+			}
+			if (imp)
+				release_metapage(imp);
+		}
+
+		DT_PUTPAGE(mp);
+	}
+
+	return rc;
+}
+
+
+/*
+ *	dtDeleteUp()
+ *
+ * function:
+ *	free empty pages as propagating deletion up the tree
+ *
+ * parameter:
+ *
+ * return:
+ */
+static int dtDeleteUp(tid_t tid, struct inode *ip,
+	   struct metapage * fmp, dtpage_t * fp, struct btstack * btstack)
+{
+	int rc = 0;
+	struct metapage *mp;
+	dtpage_t *p;
+	int index, nextindex;
+	int xlen;
+	struct btframe *parent;
+	struct dt_lock *dtlck;
+	struct tlock *tlck;
+	struct lv *lv;
+	struct pxd_lock *pxdlock;
+	int i;
+
+	/*
+	 *      keep the root leaf page which has become empty
+	 */
+	if (BT_IS_ROOT(fmp)) {
+		/*
+		 * reset the root
+		 *
+		 * dtInitRoot() acquires txlock on the root
+		 */
+		dtInitRoot(tid, ip, PARENT(ip));
+
+		DT_PUTPAGE(fmp);
+
+		return 0;
+	}
+
+	/*
+	 *      free the non-root leaf page
+	 */
+	/*
+	 * acquire a transaction lock on the page
+	 *
+	 * write FREEXTENT|NOREDOPAGE log record
+	 * N.B. linelock is overlaid as freed extent descriptor, and
+	 * the buffer page is freed;
+	 */
+	tlck = txMaplock(tid, ip, tlckDTREE | tlckFREE);
+	pxdlock = (struct pxd_lock *) & tlck->lock;
+	pxdlock->flag = mlckFREEPXD;
+	pxdlock->pxd = fp->header.self;
+	pxdlock->index = 1;
+
+	/* update sibling pointers */
+	if ((rc = dtRelink(tid, ip, fp))) {
+		BT_PUTPAGE(fmp);
+		return rc;
+	}
+
+	xlen = lengthPXD(&fp->header.self);
+	ip->i_blocks -= LBLK2PBLK(ip->i_sb, xlen);
+
+	/* free/invalidate its buffer page */
+	discard_metapage(fmp);
+
+	/*
+	 *      propagate page deletion up the directory tree
+	 *
+	 * If the delete from the parent page makes it empty,
+	 * continue all the way up the tree.
+	 * stop if the root page is reached (which is never deleted) or
+	 * if the entry deletion does not empty the page.
+	 */
+	while ((parent = BT_POP(btstack)) != NULL) {
+		/* pin the parent page <sp> */
+		DT_GETPAGE(ip, parent->bn, mp, PSIZE, p, rc);
+		if (rc)
+			return rc;
+
+		/*
+		 * free the extent of the child page deleted
+		 */
+		index = parent->index;
+
+		/*
+		 * delete the entry for the child page from parent
+		 */
+		nextindex = p->header.nextindex;
+
+		/*
+		 * the parent has the single entry being deleted:
+		 *
+		 * free the parent page which has become empty.
+		 */
+		if (nextindex == 1) {
+			/*
+			 * keep the root internal page which has become empty
+			 */
+			if (p->header.flag & BT_ROOT) {
+				/*
+				 * reset the root
+				 *
+				 * dtInitRoot() acquires txlock on the root
+				 */
+				dtInitRoot(tid, ip, PARENT(ip));
+
+				DT_PUTPAGE(mp);
+
+				return 0;
+			}
+			/*
+			 * free the parent page
+			 */
+			else {
+				/*
+				 * acquire a transaction lock on the page
+				 *
+				 * write FREEXTENT|NOREDOPAGE log record
+				 */
+				tlck =
+				    txMaplock(tid, ip,
+					      tlckDTREE | tlckFREE);
+				pxdlock = (struct pxd_lock *) & tlck->lock;
+				pxdlock->flag = mlckFREEPXD;
+				pxdlock->pxd = p->header.self;
+				pxdlock->index = 1;
+
+				/* update sibling pointers */
+				if ((rc = dtRelink(tid, ip, p))) {
+					DT_PUTPAGE(mp);
+					return rc;
+				}
+
+				xlen = lengthPXD(&p->header.self);
+				ip->i_blocks -= LBLK2PBLK(ip->i_sb, xlen);
+
+				/* free/invalidate its buffer page */
+				discard_metapage(mp);
+
+				/* propagate up */
+				continue;
+			}
+		}
+
+		/*
+		 * the parent has other entries remaining:
+		 *
+		 * delete the router entry from the parent page.
+		 */
+		BT_MARK_DIRTY(mp, ip);
+		/*
+		 * acquire a transaction lock on the page
+		 *
+		 * action: router entry deletion
+		 */
+		tlck = txLock(tid, ip, mp, tlckDTREE | tlckENTRY);
+		dtlck = (struct dt_lock *) & tlck->lock;
+
+		/* linelock header */
+		if (dtlck->index >= dtlck->maxcnt)
+			dtlck = (struct dt_lock *) txLinelock(dtlck);
+		lv = & dtlck->lv[dtlck->index];
+		lv->offset = 0;
+		lv->length = 1;
+		dtlck->index++;
+
+		/* linelock stbl of non-root leaf page */
+		if (!(p->header.flag & BT_ROOT)) {
+			if (dtlck->index < dtlck->maxcnt)
+				lv++;
+			else {
+				dtlck = (struct dt_lock *) txLinelock(dtlck);
+				lv = & dtlck->lv[0];
+			}
+			i = index >> L2DTSLOTSIZE;
+			lv->offset = p->header.stblindex + i;
+			lv->length =
+			    ((p->header.nextindex - 1) >> L2DTSLOTSIZE) -
+			    i + 1;
+			dtlck->index++;
+		}
+
+		/* free the router entry */
+		dtDeleteEntry(p, index, &dtlck);
+
+		/* reset key of new leftmost entry of level (for consistency) */
+		if (index == 0 &&
+		    ((p->header.flag & BT_ROOT) || p->header.prev == 0))
+			dtTruncateEntry(p, 0, &dtlck);
+
+		/* unpin the parent page */
+		DT_PUTPAGE(mp);
+
+		/* exit propagation up */
+		break;
+	}
+
+	return 0;
+}
+
+#ifdef _NOTYET
+/*
+ * NAME:        dtRelocate()
+ *
+ * FUNCTION:    relocate dtpage (internal or leaf) of directory;
+ *              This function is mainly used by defragfs utility.
+ */
+int dtRelocate(tid_t tid, struct inode *ip, s64 lmxaddr, pxd_t * opxd,
+	       s64 nxaddr)
+{
+	int rc = 0;
+	struct metapage *mp, *pmp, *lmp, *rmp;
+	dtpage_t *p, *pp, *rp = 0, *lp= 0;
+	s64 bn;
+	int index;
+	struct btstack btstack;
+	pxd_t *pxd;
+	s64 oxaddr, nextbn, prevbn;
+	int xlen, xsize;
+	struct tlock *tlck;
+	struct dt_lock *dtlck;
+	struct pxd_lock *pxdlock;
+	s8 *stbl;
+	struct lv *lv;
+
+	oxaddr = addressPXD(opxd);
+	xlen = lengthPXD(opxd);
+
+	jfs_info("dtRelocate: lmxaddr:%Ld xaddr:%Ld:%Ld xlen:%d",
+		   (long long)lmxaddr, (long long)oxaddr, (long long)nxaddr,
+		   xlen);
+
+	/*
+	 *      1. get the internal parent dtpage covering
+	 *      router entry for the tartget page to be relocated;
+	 */
+	rc = dtSearchNode(ip, lmxaddr, opxd, &btstack);
+	if (rc)
+		return rc;
+
+	/* retrieve search result */
+	DT_GETSEARCH(ip, btstack.top, bn, pmp, pp, index);
+	jfs_info("dtRelocate: parent router entry validated.");
+
+	/*
+	 *      2. relocate the target dtpage
+	 */
+	/* read in the target page from src extent */
+	DT_GETPAGE(ip, oxaddr, mp, PSIZE, p, rc);
+	if (rc) {
+		/* release the pinned parent page */
+		DT_PUTPAGE(pmp);
+		return rc;
+	}
+
+	/*
+	 * read in sibling pages if any to update sibling pointers;
+	 */
+	rmp = NULL;
+	if (p->header.next) {
+		nextbn = le64_to_cpu(p->header.next);
+		DT_GETPAGE(ip, nextbn, rmp, PSIZE, rp, rc);
+		if (rc) {
+			DT_PUTPAGE(mp);
+			DT_PUTPAGE(pmp);
+			return (rc);
+		}
+	}
+
+	lmp = NULL;
+	if (p->header.prev) {
+		prevbn = le64_to_cpu(p->header.prev);
+		DT_GETPAGE(ip, prevbn, lmp, PSIZE, lp, rc);
+		if (rc) {
+			DT_PUTPAGE(mp);
+			DT_PUTPAGE(pmp);
+			if (rmp)
+				DT_PUTPAGE(rmp);
+			return (rc);
+		}
+	}
+
+	/* at this point, all xtpages to be updated are in memory */
+
+	/*
+	 * update sibling pointers of sibling dtpages if any;
+	 */
+	if (lmp) {
+		tlck = txLock(tid, ip, lmp, tlckDTREE | tlckRELINK);
+		dtlck = (struct dt_lock *) & tlck->lock;
+		/* linelock header */
+		ASSERT(dtlck->index == 0);
+		lv = & dtlck->lv[0];
+		lv->offset = 0;
+		lv->length = 1;
+		dtlck->index++;
+
+		lp->header.next = cpu_to_le64(nxaddr);
+		DT_PUTPAGE(lmp);
+	}
+
+	if (rmp) {
+		tlck = txLock(tid, ip, rmp, tlckDTREE | tlckRELINK);
+		dtlck = (struct dt_lock *) & tlck->lock;
+		/* linelock header */
+		ASSERT(dtlck->index == 0);
+		lv = & dtlck->lv[0];
+		lv->offset = 0;
+		lv->length = 1;
+		dtlck->index++;
+
+		rp->header.prev = cpu_to_le64(nxaddr);
+		DT_PUTPAGE(rmp);
+	}
+
+	/*
+	 * update the target dtpage to be relocated
+	 *
+	 * write LOG_REDOPAGE of LOG_NEW type for dst page
+	 * for the whole target page (logredo() will apply
+	 * after image and update bmap for allocation of the
+	 * dst extent), and update bmap for allocation of
+	 * the dst extent;
+	 */
+	tlck = txLock(tid, ip, mp, tlckDTREE | tlckNEW);
+	dtlck = (struct dt_lock *) & tlck->lock;
+	/* linelock header */
+	ASSERT(dtlck->index == 0);
+	lv = & dtlck->lv[0];
+
+	/* update the self address in the dtpage header */
+	pxd = &p->header.self;
+	PXDaddress(pxd, nxaddr);
+
+	/* the dst page is the same as the src page, i.e.,
+	 * linelock for afterimage of the whole page;
+	 */
+	lv->offset = 0;
+	lv->length = p->header.maxslot;
+	dtlck->index++;
+
+	/* update the buffer extent descriptor of the dtpage */
+	xsize = xlen << JFS_SBI(ip->i_sb)->l2bsize;
+#ifdef _STILL_TO_PORT
+	bmSetXD(mp, nxaddr, xsize);
+#endif /* _STILL_TO_PORT */
+	/* unpin the relocated page */
+	DT_PUTPAGE(mp);
+	jfs_info("dtRelocate: target dtpage relocated.");
+
+	/* the moved extent is dtpage, then a LOG_NOREDOPAGE log rec
+	 * needs to be written (in logredo(), the LOG_NOREDOPAGE log rec
+	 * will also force a bmap update ).
+	 */
+
+	/*
+	 *      3. acquire maplock for the source extent to be freed;
+	 */
+	/* for dtpage relocation, write a LOG_NOREDOPAGE record
+	 * for the source dtpage (logredo() will init NoRedoPage
+	 * filter and will also update bmap for free of the source
+	 * dtpage), and upadte bmap for free of the source dtpage;
+	 */
+	tlck = txMaplock(tid, ip, tlckDTREE | tlckFREE);
+	pxdlock = (struct pxd_lock *) & tlck->lock;
+	pxdlock->flag = mlckFREEPXD;
+	PXDaddress(&pxdlock->pxd, oxaddr);
+	PXDlength(&pxdlock->pxd, xlen);
+	pxdlock->index = 1;
+
+	/*
+	 *      4. update the parent router entry for relocation;
+	 *
+	 * acquire tlck for the parent entry covering the target dtpage;
+	 * write LOG_REDOPAGE to apply after image only;
+	 */
+	jfs_info("dtRelocate: update parent router entry.");
+	tlck = txLock(tid, ip, pmp, tlckDTREE | tlckENTRY);
+	dtlck = (struct dt_lock *) & tlck->lock;
+	lv = & dtlck->lv[dtlck->index];
+
+	/* update the PXD with the new address */
+	stbl = DT_GETSTBL(pp);
+	pxd = (pxd_t *) & pp->slot[stbl[index]];
+	PXDaddress(pxd, nxaddr);
+	lv->offset = stbl[index];
+	lv->length = 1;
+	dtlck->index++;
+
+	/* unpin the parent dtpage */
+	DT_PUTPAGE(pmp);
+
+	return rc;
+}
+
+/*
+ * NAME:	dtSearchNode()
+ *
+ * FUNCTION:	Search for an dtpage containing a specified address
+ *              This function is mainly used by defragfs utility.
+ *
+ * NOTE:	Search result on stack, the found page is pinned at exit.
+ *		The result page must be an internal dtpage.
+ *		lmxaddr give the address of the left most page of the
+ *		dtree level, in which the required dtpage resides.
+ */
+static int dtSearchNode(struct inode *ip, s64 lmxaddr, pxd_t * kpxd,
+			struct btstack * btstack)
+{
+	int rc = 0;
+	s64 bn;
+	struct metapage *mp;
+	dtpage_t *p;
+	int psize = 288;	/* initial in-line directory */
+	s8 *stbl;
+	int i;
+	pxd_t *pxd;
+	struct btframe *btsp;
+
+	BT_CLR(btstack);	/* reset stack */
+
+	/*
+	 *      descend tree to the level with specified leftmost page
+	 *
+	 *  by convention, root bn = 0.
+	 */
+	for (bn = 0;;) {
+		/* get/pin the page to search */
+		DT_GETPAGE(ip, bn, mp, psize, p, rc);
+		if (rc)
+			return rc;
+
+		/* does the xaddr of leftmost page of the levevl
+		 * matches levevl search key ?
+		 */
+		if (p->header.flag & BT_ROOT) {
+			if (lmxaddr == 0)
+				break;
+		} else if (addressPXD(&p->header.self) == lmxaddr)
+			break;
+
+		/*
+		 * descend down to leftmost child page
+		 */
+		if (p->header.flag & BT_LEAF) {
+			DT_PUTPAGE(mp);
+			return -ESTALE;
+		}
+
+		/* get the leftmost entry */
+		stbl = DT_GETSTBL(p);
+		pxd = (pxd_t *) & p->slot[stbl[0]];
+
+		/* get the child page block address */
+		bn = addressPXD(pxd);
+		psize = lengthPXD(pxd) << JFS_SBI(ip->i_sb)->l2bsize;
+		/* unpin the parent page */
+		DT_PUTPAGE(mp);
+	}
+
+	/*
+	 *      search each page at the current levevl
+	 */
+      loop:
+	stbl = DT_GETSTBL(p);
+	for (i = 0; i < p->header.nextindex; i++) {
+		pxd = (pxd_t *) & p->slot[stbl[i]];
+
+		/* found the specified router entry */
+		if (addressPXD(pxd) == addressPXD(kpxd) &&
+		    lengthPXD(pxd) == lengthPXD(kpxd)) {
+			btsp = btstack->top;
+			btsp->bn = bn;
+			btsp->index = i;
+			btsp->mp = mp;
+
+			return 0;
+		}
+	}
+
+	/* get the right sibling page if any */
+	if (p->header.next)
+		bn = le64_to_cpu(p->header.next);
+	else {
+		DT_PUTPAGE(mp);
+		return -ESTALE;
+	}
+
+	/* unpin current page */
+	DT_PUTPAGE(mp);
+
+	/* get the right sibling page */
+	DT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+	if (rc)
+		return rc;
+
+	goto loop;
+}
+#endif /* _NOTYET */
+
+/*
+ *	dtRelink()
+ *
+ * function:
+ *	link around a freed page.
+ *
+ * parameter:
+ *	fp:	page to be freed
+ *
+ * return:
+ */
+static int dtRelink(tid_t tid, struct inode *ip, dtpage_t * p)
+{
+	int rc;
+	struct metapage *mp;
+	s64 nextbn, prevbn;
+	struct tlock *tlck;
+	struct dt_lock *dtlck;
+	struct lv *lv;
+
+	nextbn = le64_to_cpu(p->header.next);
+	prevbn = le64_to_cpu(p->header.prev);
+
+	/* update prev pointer of the next page */
+	if (nextbn != 0) {
+		DT_GETPAGE(ip, nextbn, mp, PSIZE, p, rc);
+		if (rc)
+			return rc;
+
+		BT_MARK_DIRTY(mp, ip);
+		/*
+		 * acquire a transaction lock on the next page
+		 *
+		 * action: update prev pointer;
+		 */
+		tlck = txLock(tid, ip, mp, tlckDTREE | tlckRELINK);
+		jfs_info("dtRelink nextbn: tlck = 0x%p, ip = 0x%p, mp=0x%p",
+			tlck, ip, mp);
+		dtlck = (struct dt_lock *) & tlck->lock;
+
+		/* linelock header */
+		if (dtlck->index >= dtlck->maxcnt)
+			dtlck = (struct dt_lock *) txLinelock(dtlck);
+		lv = & dtlck->lv[dtlck->index];
+		lv->offset = 0;
+		lv->length = 1;
+		dtlck->index++;
+
+		p->header.prev = cpu_to_le64(prevbn);
+		DT_PUTPAGE(mp);
+	}
+
+	/* update next pointer of the previous page */
+	if (prevbn != 0) {
+		DT_GETPAGE(ip, prevbn, mp, PSIZE, p, rc);
+		if (rc)
+			return rc;
+
+		BT_MARK_DIRTY(mp, ip);
+		/*
+		 * acquire a transaction lock on the prev page
+		 *
+		 * action: update next pointer;
+		 */
+		tlck = txLock(tid, ip, mp, tlckDTREE | tlckRELINK);
+		jfs_info("dtRelink prevbn: tlck = 0x%p, ip = 0x%p, mp=0x%p",
+			tlck, ip, mp);
+		dtlck = (struct dt_lock *) & tlck->lock;
+
+		/* linelock header */
+		if (dtlck->index >= dtlck->maxcnt)
+			dtlck = (struct dt_lock *) txLinelock(dtlck);
+		lv = & dtlck->lv[dtlck->index];
+		lv->offset = 0;
+		lv->length = 1;
+		dtlck->index++;
+
+		p->header.next = cpu_to_le64(nextbn);
+		DT_PUTPAGE(mp);
+	}
+
+	return 0;
+}
+
+
+/*
+ *	dtInitRoot()
+ *
+ * initialize directory root (inline in inode)
+ */
+void dtInitRoot(tid_t tid, struct inode *ip, u32 idotdot)
+{
+	struct jfs_inode_info *jfs_ip = JFS_IP(ip);
+	dtroot_t *p;
+	int fsi;
+	struct dtslot *f;
+	struct tlock *tlck;
+	struct dt_lock *dtlck;
+	struct lv *lv;
+	u16 xflag_save;
+
+	/*
+	 * If this was previously an non-empty directory, we need to remove
+	 * the old directory table.
+	 */
+	if (DO_INDEX(ip)) {
+		if (jfs_ip->next_index > (MAX_INLINE_DIRTABLE_ENTRY + 1)) {
+			struct tblock *tblk = tid_to_tblock(tid);
+			/*
+			 * We're playing games with the tid's xflag.  If
+			 * we're removing a regular file, the file's xtree
+			 * is committed with COMMIT_PMAP, but we always
+			 * commit the directories xtree with COMMIT_PWMAP.
+			 */
+			xflag_save = tblk->xflag;
+			tblk->xflag = 0;
+			/*
+			 * xtTruncate isn't guaranteed to fully truncate
+			 * the xtree.  The caller needs to check i_size
+			 * after committing the transaction to see if
+			 * additional truncation is needed.  The
+			 * COMMIT_Stale flag tells caller that we
+			 * initiated the truncation.
+			 */
+			xtTruncate(tid, ip, 0, COMMIT_PWMAP);
+			set_cflag(COMMIT_Stale, ip);
+
+			tblk->xflag = xflag_save;
+		} else
+			ip->i_size = 1;
+
+		jfs_ip->next_index = 2;
+	} else
+		ip->i_size = IDATASIZE;
+
+	/*
+	 * acquire a transaction lock on the root
+	 *
+	 * action: directory initialization;
+	 */
+	tlck = txLock(tid, ip, (struct metapage *) & jfs_ip->bxflag,
+		      tlckDTREE | tlckENTRY | tlckBTROOT);
+	dtlck = (struct dt_lock *) & tlck->lock;
+
+	/* linelock root */
+	ASSERT(dtlck->index == 0);
+	lv = & dtlck->lv[0];
+	lv->offset = 0;
+	lv->length = DTROOTMAXSLOT;
+	dtlck->index++;
+
+	p = &jfs_ip->i_dtroot;
+
+	p->header.flag = DXD_INDEX | BT_ROOT | BT_LEAF;
+
+	p->header.nextindex = 0;
+
+	/* init freelist */
+	fsi = 1;
+	f = &p->slot[fsi];
+
+	/* init data area of root */
+	for (fsi++; fsi < DTROOTMAXSLOT; f++, fsi++)
+		f->next = fsi;
+	f->next = -1;
+
+	p->header.freelist = 1;
+	p->header.freecnt = 8;
+
+	/* init '..' entry */
+	p->header.idotdot = cpu_to_le32(idotdot);
+
+#if 0
+	ip->i_blocks = LBLK2PBLK(ip->i_sb,
+				 ((jfs_ip->ea.flag & DXD_EXTENT) ?
+				  lengthDXD(&jfs_ip->ea) : 0) +
+				 ((jfs_ip->acl.flag & DXD_EXTENT) ?
+				  lengthDXD(&jfs_ip->acl) : 0));
+#endif
+
+	return;
+}
+
+/*
+ *	add_missing_indices()
+ *
+ * function: Fix dtree page in which one or more entries has an invalid index.
+ *	     fsck.jfs should really fix this, but it currently does not.
+ *	     Called from jfs_readdir when bad index is detected.
+ */
+static void add_missing_indices(struct inode *inode, s64 bn)
+{
+	struct ldtentry *d;
+	struct dt_lock *dtlck;
+	int i;
+	uint index;
+	struct lv *lv;
+	struct metapage *mp;
+	dtpage_t *p;
+	int rc;
+	s8 *stbl;
+	tid_t tid;
+	struct tlock *tlck;
+
+	tid = txBegin(inode->i_sb, 0);
+
+	DT_GETPAGE(inode, bn, mp, PSIZE, p, rc);
+
+	if (rc) {
+		printk(KERN_ERR "DT_GETPAGE failed!\n");
+		goto end;
+	}
+	BT_MARK_DIRTY(mp, inode);
+
+	ASSERT(p->header.flag & BT_LEAF);
+
+	tlck = txLock(tid, inode, mp, tlckDTREE | tlckENTRY);
+	dtlck = (struct dt_lock *) &tlck->lock;
+
+	stbl = DT_GETSTBL(p);
+	for (i = 0; i < p->header.nextindex; i++) {
+		d = (struct ldtentry *) &p->slot[stbl[i]];
+		index = le32_to_cpu(d->index);
+		if ((index < 2) || (index >= JFS_IP(inode)->next_index)) {
+			d->index = cpu_to_le32(add_index(tid, inode, bn, i));
+			if (dtlck->index >= dtlck->maxcnt)
+				dtlck = (struct dt_lock *) txLinelock(dtlck);
+			lv = &dtlck->lv[dtlck->index];
+			lv->offset = stbl[i];
+			lv->length = 1;
+			dtlck->index++;
+		}
+	}
+
+	DT_PUTPAGE(mp);
+	(void) txCommit(tid, 1, &inode, 0);
+end:
+	txEnd(tid);
+}
+
+/*
+ * Buffer to hold directory entry info while traversing a dtree page
+ * before being fed to the filldir function
+ */
+struct jfs_dirent {
+	loff_t position;
+	int ino;
+	u16 name_len;
+	char name[0];
+};
+
+/*
+ * function to determine next variable-sized jfs_dirent in buffer
+ */
+static inline struct jfs_dirent *next_jfs_dirent(struct jfs_dirent *dirent)
+{
+	return (struct jfs_dirent *)
+		((char *)dirent +
+		 ((sizeof (struct jfs_dirent) + dirent->name_len + 1 +
+		   sizeof (loff_t) - 1) &
+		  ~(sizeof (loff_t) - 1)));
+}
+
+/*
+ *	jfs_readdir()
+ *
+ * function: read directory entries sequentially
+ *	from the specified entry offset
+ *
+ * parameter:
+ *
+ * return: offset = (pn, index) of start entry
+ *	of next jfs_readdir()/dtRead()
+ */
+int jfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
+{
+	struct inode *ip = filp->f_dentry->d_inode;
+	struct nls_table *codepage = JFS_SBI(ip->i_sb)->nls_tab;
+	int rc = 0;
+	loff_t dtpos;	/* legacy OS/2 style position */
+	struct dtoffset {
+		s16 pn;
+		s16 index;
+		s32 unused;
+	} *dtoffset = (struct dtoffset *) &dtpos;
+	s64 bn;
+	struct metapage *mp;
+	dtpage_t *p;
+	int index;
+	s8 *stbl;
+	struct btstack btstack;
+	int i, next;
+	struct ldtentry *d;
+	struct dtslot *t;
+	int d_namleft, len, outlen;
+	unsigned long dirent_buf;
+	char *name_ptr;
+	u32 dir_index;
+	int do_index = 0;
+	uint loop_count = 0;
+	struct jfs_dirent *jfs_dirent;
+	int jfs_dirents;
+	int overflow, fix_page, page_fixed = 0;
+	static int unique_pos = 2;	/* If we can't fix broken index */
+
+	if (filp->f_pos == DIREND)
+		return 0;
+
+	if (DO_INDEX(ip)) {
+		/*
+		 * persistent index is stored in directory entries.
+		 * Special cases:        0 = .
+		 *                       1 = ..
+		 *                      -1 = End of directory
+		 */
+		do_index = 1;
+
+		dir_index = (u32) filp->f_pos;
+
+		if (dir_index > 1) {
+			struct dir_table_slot dirtab_slot;
+
+			if (dtEmpty(ip) ||
+			    (dir_index >= JFS_IP(ip)->next_index)) {
+				/* Stale position.  Directory has shrunk */
+				filp->f_pos = DIREND;
+				return 0;
+			}
+		      repeat:
+			rc = read_index(ip, dir_index, &dirtab_slot);
+			if (rc) {
+				filp->f_pos = DIREND;
+				return rc;
+			}
+			if (dirtab_slot.flag == DIR_INDEX_FREE) {
+				if (loop_count++ > JFS_IP(ip)->next_index) {
+					jfs_err("jfs_readdir detected "
+						   "infinite loop!");
+					filp->f_pos = DIREND;
+					return 0;
+				}
+				dir_index = le32_to_cpu(dirtab_slot.addr2);
+				if (dir_index == -1) {
+					filp->f_pos = DIREND;
+					return 0;
+				}
+				goto repeat;
+			}
+			bn = addressDTS(&dirtab_slot);
+			index = dirtab_slot.slot;
+			DT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+			if (rc) {
+				filp->f_pos = DIREND;
+				return 0;
+			}
+			if (p->header.flag & BT_INTERNAL) {
+				jfs_err("jfs_readdir: bad index table");
+				DT_PUTPAGE(mp);
+				filp->f_pos = -1;
+				return 0;
+			}
+		} else {
+			if (dir_index == 0) {
+				/*
+				 * self "."
+				 */
+				filp->f_pos = 0;
+				if (filldir(dirent, ".", 1, 0, ip->i_ino,
+					    DT_DIR))
+					return 0;
+			}
+			/*
+			 * parent ".."
+			 */
+			filp->f_pos = 1;
+			if (filldir(dirent, "..", 2, 1, PARENT(ip), DT_DIR))
+				return 0;
+
+			/*
+			 * Find first entry of left-most leaf
+			 */
+			if (dtEmpty(ip)) {
+				filp->f_pos = DIREND;
+				return 0;
+			}
+
+			if ((rc = dtReadFirst(ip, &btstack)))
+				return rc;
+
+			DT_GETSEARCH(ip, btstack.top, bn, mp, p, index);
+		}
+	} else {
+		/*
+		 * Legacy filesystem - OS/2 & Linux JFS < 0.3.6
+		 *
+		 * pn = index = 0:      First entry "."
+		 * pn = 0; index = 1:   Second entry ".."
+		 * pn > 0:              Real entries, pn=1 -> leftmost page
+		 * pn = index = -1:     No more entries
+		 */
+		dtpos = filp->f_pos;
+		if (dtpos == 0) {
+			/* build "." entry */
+
+			if (filldir(dirent, ".", 1, filp->f_pos, ip->i_ino,
+				    DT_DIR))
+				return 0;
+			dtoffset->index = 1;
+			filp->f_pos = dtpos;
+		}
+
+		if (dtoffset->pn == 0) {
+			if (dtoffset->index == 1) {
+				/* build ".." entry */
+
+				if (filldir(dirent, "..", 2, filp->f_pos,
+					    PARENT(ip), DT_DIR))
+					return 0;
+			} else {
+				jfs_err("jfs_readdir called with "
+					"invalid offset!");
+			}
+			dtoffset->pn = 1;
+			dtoffset->index = 0;
+			filp->f_pos = dtpos;
+		}
+
+		if (dtEmpty(ip)) {
+			filp->f_pos = DIREND;
+			return 0;
+		}
+
+		if ((rc = dtReadNext(ip, &filp->f_pos, &btstack))) {
+			jfs_err("jfs_readdir: unexpected rc = %d "
+				"from dtReadNext", rc);
+			filp->f_pos = DIREND;
+			return 0;
+		}
+		/* get start leaf page and index */
+		DT_GETSEARCH(ip, btstack.top, bn, mp, p, index);
+
+		/* offset beyond directory eof ? */
+		if (bn < 0) {
+			filp->f_pos = DIREND;
+			return 0;
+		}
+	}
+
+	dirent_buf = __get_free_page(GFP_KERNEL);
+	if (dirent_buf == 0) {
+		DT_PUTPAGE(mp);
+		jfs_warn("jfs_readdir: __get_free_page failed!");
+		filp->f_pos = DIREND;
+		return -ENOMEM;
+	}
+
+	while (1) {
+		jfs_dirent = (struct jfs_dirent *) dirent_buf;
+		jfs_dirents = 0;
+		overflow = fix_page = 0;
+
+		stbl = DT_GETSTBL(p);
+
+		for (i = index; i < p->header.nextindex; i++) {
+			d = (struct ldtentry *) & p->slot[stbl[i]];
+
+			if (((long) jfs_dirent + d->namlen + 1) >
+			    (dirent_buf + PSIZE)) {
+				/* DBCS codepages could overrun dirent_buf */
+				index = i;
+				overflow = 1;
+				break;
+			}
+
+			d_namleft = d->namlen;
+			name_ptr = jfs_dirent->name;
+			jfs_dirent->ino = le32_to_cpu(d->inumber);
+
+			if (do_index) {
+				len = min(d_namleft, DTLHDRDATALEN);
+				jfs_dirent->position = le32_to_cpu(d->index);
+				/*
+				 * d->index should always be valid, but it
+				 * isn't.  fsck.jfs doesn't create the
+				 * directory index for the lost+found
+				 * directory.  Rather than let it go,
+				 * we can try to fix it.
+				 */
+				if ((jfs_dirent->position < 2) ||
+				    (jfs_dirent->position >=
+				     JFS_IP(ip)->next_index)) {
+					if (!page_fixed && !isReadOnly(ip)) {
+						fix_page = 1;
+						/*
+						 * setting overflow and setting
+						 * index to i will cause the
+						 * same page to be processed
+						 * again starting here
+						 */
+						overflow = 1;
+						index = i;
+						break;
+					}
+					jfs_dirent->position = unique_pos++;
+				}
+			} else {
+				jfs_dirent->position = dtpos;
+				len = min(d_namleft, DTLHDRDATALEN_LEGACY);
+			}
+
+			/* copy the name of head/only segment */
+			outlen = jfs_strfromUCS_le(name_ptr, d->name, len,
+						   codepage);
+			jfs_dirent->name_len = outlen;
+
+			/* copy name in the additional segment(s) */
+			next = d->next;
+			while (next >= 0) {
+				t = (struct dtslot *) & p->slot[next];
+				name_ptr += outlen;
+				d_namleft -= len;
+				/* Sanity Check */
+				if (d_namleft == 0) {
+					jfs_error(ip->i_sb,
+						  "JFS:Dtree error: ino = "
+						  "%ld, bn=%Ld, index = %d",
+						  (long)ip->i_ino,
+						  (long long)bn,
+						  i);
+					goto skip_one;
+				}
+				len = min(d_namleft, DTSLOTDATALEN);
+				outlen = jfs_strfromUCS_le(name_ptr, t->name,
+							   len, codepage);
+				jfs_dirent->name_len += outlen;
+
+				next = t->next;
+			}
+
+			jfs_dirents++;
+			jfs_dirent = next_jfs_dirent(jfs_dirent);
+skip_one:
+			if (!do_index)
+				dtoffset->index++;
+		}
+
+		if (!overflow) {
+			/* Point to next leaf page */
+			if (p->header.flag & BT_ROOT)
+				bn = 0;
+			else {
+				bn = le64_to_cpu(p->header.next);
+				index = 0;
+				/* update offset (pn:index) for new page */
+				if (!do_index) {
+					dtoffset->pn++;
+					dtoffset->index = 0;
+				}
+			}
+			page_fixed = 0;
+		}
+
+		/* unpin previous leaf page */
+		DT_PUTPAGE(mp);
+
+		jfs_dirent = (struct jfs_dirent *) dirent_buf;
+		while (jfs_dirents--) {
+			filp->f_pos = jfs_dirent->position;
+			if (filldir(dirent, jfs_dirent->name,
+				    jfs_dirent->name_len, filp->f_pos,
+				    jfs_dirent->ino, DT_UNKNOWN))
+				goto out;
+			jfs_dirent = next_jfs_dirent(jfs_dirent);
+		}
+
+		if (fix_page) {
+			add_missing_indices(ip, bn);
+			page_fixed = 1;
+		}
+
+		if (!overflow && (bn == 0)) {
+			filp->f_pos = DIREND;
+			break;
+		}
+
+		DT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+		if (rc) {
+			free_page(dirent_buf);
+			return rc;
+		}
+	}
+
+      out:
+	free_page(dirent_buf);
+
+	return rc;
+}
+
+
+/*
+ *	dtReadFirst()
+ *
+ * function: get the leftmost page of the directory
+ */
+static int dtReadFirst(struct inode *ip, struct btstack * btstack)
+{
+	int rc = 0;
+	s64 bn;
+	int psize = 288;	/* initial in-line directory */
+	struct metapage *mp;
+	dtpage_t *p;
+	s8 *stbl;
+	struct btframe *btsp;
+	pxd_t *xd;
+
+	BT_CLR(btstack);	/* reset stack */
+
+	/*
+	 *      descend leftmost path of the tree
+	 *
+	 * by convention, root bn = 0.
+	 */
+	for (bn = 0;;) {
+		DT_GETPAGE(ip, bn, mp, psize, p, rc);
+		if (rc)
+			return rc;
+
+		/*
+		 * leftmost leaf page
+		 */
+		if (p->header.flag & BT_LEAF) {
+			/* return leftmost entry */
+			btsp = btstack->top;
+			btsp->bn = bn;
+			btsp->index = 0;
+			btsp->mp = mp;
+
+			return 0;
+		}
+
+		/*
+		 * descend down to leftmost child page
+		 */
+		if (BT_STACK_FULL(btstack)) {
+			DT_PUTPAGE(mp);
+			jfs_error(ip->i_sb, "dtReadFirst: btstack overrun");
+			BT_STACK_DUMP(btstack);
+			return -EIO;
+		}
+		/* push (bn, index) of the parent page/entry */
+		BT_PUSH(btstack, bn, 0);
+
+		/* get the leftmost entry */
+		stbl = DT_GETSTBL(p);
+		xd = (pxd_t *) & p->slot[stbl[0]];
+
+		/* get the child page block address */
+		bn = addressPXD(xd);
+		psize = lengthPXD(xd) << JFS_SBI(ip->i_sb)->l2bsize;
+
+		/* unpin the parent page */
+		DT_PUTPAGE(mp);
+	}
+}
+
+
+/*
+ *	dtReadNext()
+ *
+ * function: get the page of the specified offset (pn:index)
+ *
+ * return: if (offset > eof), bn = -1;
+ *
+ * note: if index > nextindex of the target leaf page,
+ * start with 1st entry of next leaf page;
+ */
+static int dtReadNext(struct inode *ip, loff_t * offset,
+		      struct btstack * btstack)
+{
+	int rc = 0;
+	struct dtoffset {
+		s16 pn;
+		s16 index;
+		s32 unused;
+	} *dtoffset = (struct dtoffset *) offset;
+	s64 bn;
+	struct metapage *mp;
+	dtpage_t *p;
+	int index;
+	int pn;
+	s8 *stbl;
+	struct btframe *btsp, *parent;
+	pxd_t *xd;
+
+	/*
+	 * get leftmost leaf page pinned
+	 */
+	if ((rc = dtReadFirst(ip, btstack)))
+		return rc;
+
+	/* get leaf page */
+	DT_GETSEARCH(ip, btstack->top, bn, mp, p, index);
+
+	/* get the start offset (pn:index) */
+	pn = dtoffset->pn - 1;	/* Now pn = 0 represents leftmost leaf */
+	index = dtoffset->index;
+
+	/* start at leftmost page ? */
+	if (pn == 0) {
+		/* offset beyond eof ? */
+		if (index < p->header.nextindex)
+			goto out;
+
+		if (p->header.flag & BT_ROOT) {
+			bn = -1;
+			goto out;
+		}
+
+		/* start with 1st entry of next leaf page */
+		dtoffset->pn++;
+		dtoffset->index = index = 0;
+		goto a;
+	}
+
+	/* start at non-leftmost page: scan parent pages for large pn */
+	if (p->header.flag & BT_ROOT) {
+		bn = -1;
+		goto out;
+	}
+
+	/* start after next leaf page ? */
+	if (pn > 1)
+		goto b;
+
+	/* get leaf page pn = 1 */
+      a:
+	bn = le64_to_cpu(p->header.next);
+
+	/* unpin leaf page */
+	DT_PUTPAGE(mp);
+
+	/* offset beyond eof ? */
+	if (bn == 0) {
+		bn = -1;
+		goto out;
+	}
+
+	goto c;
+
+	/*
+	 * scan last internal page level to get target leaf page
+	 */
+      b:
+	/* unpin leftmost leaf page */
+	DT_PUTPAGE(mp);
+
+	/* get left most parent page */
+	btsp = btstack->top;
+	parent = btsp - 1;
+	bn = parent->bn;
+	DT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+	if (rc)
+		return rc;
+
+	/* scan parent pages at last internal page level */
+	while (pn >= p->header.nextindex) {
+		pn -= p->header.nextindex;
+
+		/* get next parent page address */
+		bn = le64_to_cpu(p->header.next);
+
+		/* unpin current parent page */
+		DT_PUTPAGE(mp);
+
+		/* offset beyond eof ? */
+		if (bn == 0) {
+			bn = -1;
+			goto out;
+		}
+
+		/* get next parent page */
+		DT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+		if (rc)
+			return rc;
+
+		/* update parent page stack frame */
+		parent->bn = bn;
+	}
+
+	/* get leaf page address */
+	stbl = DT_GETSTBL(p);
+	xd = (pxd_t *) & p->slot[stbl[pn]];
+	bn = addressPXD(xd);
+
+	/* unpin parent page */
+	DT_PUTPAGE(mp);
+
+	/*
+	 * get target leaf page
+	 */
+      c:
+	DT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+	if (rc)
+		return rc;
+
+	/*
+	 * leaf page has been completed:
+	 * start with 1st entry of next leaf page
+	 */
+	if (index >= p->header.nextindex) {
+		bn = le64_to_cpu(p->header.next);
+
+		/* unpin leaf page */
+		DT_PUTPAGE(mp);
+
+		/* offset beyond eof ? */
+		if (bn == 0) {
+			bn = -1;
+			goto out;
+		}
+
+		/* get next leaf page */
+		DT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+		if (rc)
+			return rc;
+
+		/* start with 1st entry of next leaf page */
+		dtoffset->pn++;
+		dtoffset->index = 0;
+	}
+
+      out:
+	/* return target leaf page pinned */
+	btsp = btstack->top;
+	btsp->bn = bn;
+	btsp->index = dtoffset->index;
+	btsp->mp = mp;
+
+	return 0;
+}
+
+
+/*
+ *	dtCompare()
+ *
+ * function: compare search key with an internal entry
+ *
+ * return:
+ *	< 0 if k is < record
+ *	= 0 if k is = record
+ *	> 0 if k is > record
+ */
+static int dtCompare(struct component_name * key,	/* search key */
+		     dtpage_t * p,	/* directory page */
+		     int si)
+{				/* entry slot index */
+	wchar_t *kname, *name;
+	int klen, namlen, len, rc;
+	struct idtentry *ih;
+	struct dtslot *t;
+
+	/*
+	 * force the left-most key on internal pages, at any level of
+	 * the tree, to be less than any search key.
+	 * this obviates having to update the leftmost key on an internal
+	 * page when the user inserts a new key in the tree smaller than
+	 * anything that has been stored.
+	 *
+	 * (? if/when dtSearch() narrows down to 1st entry (index = 0),
+	 * at any internal page at any level of the tree,
+	 * it descends to child of the entry anyway -
+	 * ? make the entry as min size dummy entry)
+	 *
+	 * if (e->index == 0 && h->prevpg == P_INVALID && !(h->flags & BT_LEAF))
+	 * return (1);
+	 */
+
+	kname = key->name;
+	klen = key->namlen;
+
+	ih = (struct idtentry *) & p->slot[si];
+	si = ih->next;
+	name = ih->name;
+	namlen = ih->namlen;
+	len = min(namlen, DTIHDRDATALEN);
+
+	/* compare with head/only segment */
+	len = min(klen, len);
+	if ((rc = UniStrncmp_le(kname, name, len)))
+		return rc;
+
+	klen -= len;
+	namlen -= len;
+
+	/* compare with additional segment(s) */
+	kname += len;
+	while (klen > 0 && namlen > 0) {
+		/* compare with next name segment */
+		t = (struct dtslot *) & p->slot[si];
+		len = min(namlen, DTSLOTDATALEN);
+		len = min(klen, len);
+		name = t->name;
+		if ((rc = UniStrncmp_le(kname, name, len)))
+			return rc;
+
+		klen -= len;
+		namlen -= len;
+		kname += len;
+		si = t->next;
+	}
+
+	return (klen - namlen);
+}
+
+
+
+
+/*
+ *	ciCompare()
+ *
+ * function: compare search key with an (leaf/internal) entry
+ *
+ * return:
+ *	< 0 if k is < record
+ *	= 0 if k is = record
+ *	> 0 if k is > record
+ */
+static int ciCompare(struct component_name * key,	/* search key */
+		     dtpage_t * p,	/* directory page */
+		     int si,	/* entry slot index */
+		     int flag)
+{
+	wchar_t *kname, *name, x;
+	int klen, namlen, len, rc;
+	struct ldtentry *lh;
+	struct idtentry *ih;
+	struct dtslot *t;
+	int i;
+
+	/*
+	 * force the left-most key on internal pages, at any level of
+	 * the tree, to be less than any search key.
+	 * this obviates having to update the leftmost key on an internal
+	 * page when the user inserts a new key in the tree smaller than
+	 * anything that has been stored.
+	 *
+	 * (? if/when dtSearch() narrows down to 1st entry (index = 0),
+	 * at any internal page at any level of the tree,
+	 * it descends to child of the entry anyway -
+	 * ? make the entry as min size dummy entry)
+	 *
+	 * if (e->index == 0 && h->prevpg == P_INVALID && !(h->flags & BT_LEAF))
+	 * return (1);
+	 */
+
+	kname = key->name;
+	klen = key->namlen;
+
+	/*
+	 * leaf page entry
+	 */
+	if (p->header.flag & BT_LEAF) {
+		lh = (struct ldtentry *) & p->slot[si];
+		si = lh->next;
+		name = lh->name;
+		namlen = lh->namlen;
+		if (flag & JFS_DIR_INDEX)
+			len = min(namlen, DTLHDRDATALEN);
+		else
+			len = min(namlen, DTLHDRDATALEN_LEGACY);
+	}
+	/*
+	 * internal page entry
+	 */
+	else {
+		ih = (struct idtentry *) & p->slot[si];
+		si = ih->next;
+		name = ih->name;
+		namlen = ih->namlen;
+		len = min(namlen, DTIHDRDATALEN);
+	}
+
+	/* compare with head/only segment */
+	len = min(klen, len);
+	for (i = 0; i < len; i++, kname++, name++) {
+		/* only uppercase if case-insensitive support is on */
+		if ((flag & JFS_OS2) == JFS_OS2)
+			x = UniToupper(le16_to_cpu(*name));
+		else
+			x = le16_to_cpu(*name);
+		if ((rc = *kname - x))
+			return rc;
+	}
+
+	klen -= len;
+	namlen -= len;
+
+	/* compare with additional segment(s) */
+	while (klen > 0 && namlen > 0) {
+		/* compare with next name segment */
+		t = (struct dtslot *) & p->slot[si];
+		len = min(namlen, DTSLOTDATALEN);
+		len = min(klen, len);
+		name = t->name;
+		for (i = 0; i < len; i++, kname++, name++) {
+			/* only uppercase if case-insensitive support is on */
+			if ((flag & JFS_OS2) == JFS_OS2)
+				x = UniToupper(le16_to_cpu(*name));
+			else
+				x = le16_to_cpu(*name);
+
+			if ((rc = *kname - x))
+				return rc;
+		}
+
+		klen -= len;
+		namlen -= len;
+		si = t->next;
+	}
+
+	return (klen - namlen);
+}
+
+
+/*
+ *	ciGetLeafPrefixKey()
+ *
+ * function: compute prefix of suffix compression
+ *	     from two adjacent leaf entries
+ *	     across page boundary
+ *
+ * return: non-zero on error
+ *	
+ */
+static int ciGetLeafPrefixKey(dtpage_t * lp, int li, dtpage_t * rp,
+			       int ri, struct component_name * key, int flag)
+{
+	int klen, namlen;
+	wchar_t *pl, *pr, *kname;
+	struct component_name lkey;
+	struct component_name rkey;
+
+	lkey.name = (wchar_t *) kmalloc((JFS_NAME_MAX + 1) * sizeof(wchar_t),
+					GFP_KERNEL);
+	if (lkey.name == NULL)
+		return -ENOSPC;
+
+	rkey.name = (wchar_t *) kmalloc((JFS_NAME_MAX + 1) * sizeof(wchar_t),
+					GFP_KERNEL);
+	if (rkey.name == NULL) {
+		kfree(lkey.name);
+		return -ENOSPC;
+	}
+
+	/* get left and right key */
+	dtGetKey(lp, li, &lkey, flag);
+	lkey.name[lkey.namlen] = 0;
+
+	if ((flag & JFS_OS2) == JFS_OS2)
+		ciToUpper(&lkey);
+
+	dtGetKey(rp, ri, &rkey, flag);
+	rkey.name[rkey.namlen] = 0;
+
+
+	if ((flag & JFS_OS2) == JFS_OS2)
+		ciToUpper(&rkey);
+
+	/* compute prefix */
+	klen = 0;
+	kname = key->name;
+	namlen = min(lkey.namlen, rkey.namlen);
+	for (pl = lkey.name, pr = rkey.name;
+	     namlen; pl++, pr++, namlen--, klen++, kname++) {
+		*kname = *pr;
+		if (*pl != *pr) {
+			key->namlen = klen + 1;
+			goto free_names;
+		}
+	}
+
+	/* l->namlen <= r->namlen since l <= r */
+	if (lkey.namlen < rkey.namlen) {
+		*kname = *pr;
+		key->namlen = klen + 1;
+	} else			/* l->namelen == r->namelen */
+		key->namlen = klen;
+
+free_names:
+	kfree(lkey.name);
+	kfree(rkey.name);
+	return 0;
+}
+
+
+
+/*
+ *	dtGetKey()
+ *
+ * function: get key of the entry
+ */
+static void dtGetKey(dtpage_t * p, int i,	/* entry index */
+		     struct component_name * key, int flag)
+{
+	int si;
+	s8 *stbl;
+	struct ldtentry *lh;
+	struct idtentry *ih;
+	struct dtslot *t;
+	int namlen, len;
+	wchar_t *name, *kname;
+
+	/* get entry */
+	stbl = DT_GETSTBL(p);
+	si = stbl[i];
+	if (p->header.flag & BT_LEAF) {
+		lh = (struct ldtentry *) & p->slot[si];
+		si = lh->next;
+		namlen = lh->namlen;
+		name = lh->name;
+		if (flag & JFS_DIR_INDEX)
+			len = min(namlen, DTLHDRDATALEN);
+		else
+			len = min(namlen, DTLHDRDATALEN_LEGACY);
+	} else {
+		ih = (struct idtentry *) & p->slot[si];
+		si = ih->next;
+		namlen = ih->namlen;
+		name = ih->name;
+		len = min(namlen, DTIHDRDATALEN);
+	}
+
+	key->namlen = namlen;
+	kname = key->name;
+
+	/*
+	 * move head/only segment
+	 */
+	UniStrncpy_le(kname, name, len);
+
+	/*
+	 * move additional segment(s)
+	 */
+	while (si >= 0) {
+		/* get next segment */
+		t = &p->slot[si];
+		kname += len;
+		namlen -= len;
+		len = min(namlen, DTSLOTDATALEN);
+		UniStrncpy_le(kname, t->name, len);
+
+		si = t->next;
+	}
+}
+
+
+/*
+ *	dtInsertEntry()
+ *
+ * function: allocate free slot(s) and
+ *	     write a leaf/internal entry
+ *
+ * return: entry slot index
+ */
+static void dtInsertEntry(dtpage_t * p, int index, struct component_name * key,
+			  ddata_t * data, struct dt_lock ** dtlock)
+{
+	struct dtslot *h, *t;
+	struct ldtentry *lh = 0;
+	struct idtentry *ih = 0;
+	int hsi, fsi, klen, len, nextindex;
+	wchar_t *kname, *name;
+	s8 *stbl;
+	pxd_t *xd;
+	struct dt_lock *dtlck = *dtlock;
+	struct lv *lv;
+	int xsi, n;
+	s64 bn = 0;
+	struct metapage *mp = 0;
+
+	klen = key->namlen;
+	kname = key->name;
+
+	/* allocate a free slot */
+	hsi = fsi = p->header.freelist;
+	h = &p->slot[fsi];
+	p->header.freelist = h->next;
+	--p->header.freecnt;
+
+	/* open new linelock */
+	if (dtlck->index >= dtlck->maxcnt)
+		dtlck = (struct dt_lock *) txLinelock(dtlck);
+
+	lv = & dtlck->lv[dtlck->index];
+	lv->offset = hsi;
+
+	/* write head/only segment */
+	if (p->header.flag & BT_LEAF) {
+		lh = (struct ldtentry *) h;
+		lh->next = h->next;
+		lh->inumber = data->leaf.ino;	/* little-endian */
+		lh->namlen = klen;
+		name = lh->name;
+		if (data->leaf.ip) {
+			len = min(klen, DTLHDRDATALEN);
+			if (!(p->header.flag & BT_ROOT))
+				bn = addressPXD(&p->header.self);
+			lh->index = cpu_to_le32(add_index(data->leaf.tid,
+							  data->leaf.ip,
+							  bn, index));
+		} else
+			len = min(klen, DTLHDRDATALEN_LEGACY);
+	} else {
+		ih = (struct idtentry *) h;
+		ih->next = h->next;
+		xd = (pxd_t *) ih;
+		*xd = data->xd;
+		ih->namlen = klen;
+		name = ih->name;
+		len = min(klen, DTIHDRDATALEN);
+	}
+
+	UniStrncpy_le(name, kname, len);
+
+	n = 1;
+	xsi = hsi;
+
+	/* write additional segment(s) */
+	t = h;
+	klen -= len;
+	while (klen) {
+		/* get free slot */
+		fsi = p->header.freelist;
+		t = &p->slot[fsi];
+		p->header.freelist = t->next;
+		--p->header.freecnt;
+
+		/* is next slot contiguous ? */
+		if (fsi != xsi + 1) {
+			/* close current linelock */
+			lv->length = n;
+			dtlck->index++;
+
+			/* open new linelock */
+			if (dtlck->index < dtlck->maxcnt)
+				lv++;
+			else {
+				dtlck = (struct dt_lock *) txLinelock(dtlck);
+				lv = & dtlck->lv[0];
+			}
+
+			lv->offset = fsi;
+			n = 0;
+		}
+
+		kname += len;
+		len = min(klen, DTSLOTDATALEN);
+		UniStrncpy_le(t->name, kname, len);
+
+		n++;
+		xsi = fsi;
+		klen -= len;
+	}
+
+	/* close current linelock */
+	lv->length = n;
+	dtlck->index++;
+
+	*dtlock = dtlck;
+
+	/* terminate last/only segment */
+	if (h == t) {
+		/* single segment entry */
+		if (p->header.flag & BT_LEAF)
+			lh->next = -1;
+		else
+			ih->next = -1;
+	} else
+		/* multi-segment entry */
+		t->next = -1;
+
+	/* if insert into middle, shift right succeeding entries in stbl */
+	stbl = DT_GETSTBL(p);
+	nextindex = p->header.nextindex;
+	if (index < nextindex) {
+		memmove(stbl + index + 1, stbl + index, nextindex - index);
+
+		if ((p->header.flag & BT_LEAF) && data->leaf.ip) {
+			s64 lblock;
+
+			/*
+			 * Need to update slot number for entries that moved
+			 * in the stbl
+			 */
+			mp = 0;
+			for (n = index + 1; n <= nextindex; n++) {
+				lh = (struct ldtentry *) & (p->slot[stbl[n]]);
+				modify_index(data->leaf.tid, data->leaf.ip,
+					     le32_to_cpu(lh->index), bn, n,
+					     &mp, &lblock);
+			}
+			if (mp)
+				release_metapage(mp);
+		}
+	}
+
+	stbl[index] = hsi;
+
+	/* advance next available entry index of stbl */
+	++p->header.nextindex;
+}
+
+
+/*
+ *	dtMoveEntry()
+ *
+ * function: move entries from split/left page to new/right page
+ *
+ *	nextindex of dst page and freelist/freecnt of both pages
+ *	are updated.
+ */
+static void dtMoveEntry(dtpage_t * sp, int si, dtpage_t * dp,
+			struct dt_lock ** sdtlock, struct dt_lock ** ddtlock,
+			int do_index)
+{
+	int ssi, next;		/* src slot index */
+	int di;			/* dst entry index */
+	int dsi;		/* dst slot index */
+	s8 *sstbl, *dstbl;	/* sorted entry table */
+	int snamlen, len;
+	struct ldtentry *slh, *dlh = 0;
+	struct idtentry *sih, *dih = 0;
+	struct dtslot *h, *s, *d;
+	struct dt_lock *sdtlck = *sdtlock, *ddtlck = *ddtlock;
+	struct lv *slv, *dlv;
+	int xssi, ns, nd;
+	int sfsi;
+
+	sstbl = (s8 *) & sp->slot[sp->header.stblindex];
+	dstbl = (s8 *) & dp->slot[dp->header.stblindex];
+
+	dsi = dp->header.freelist;	/* first (whole page) free slot */
+	sfsi = sp->header.freelist;
+
+	/* linelock destination entry slot */
+	dlv = & ddtlck->lv[ddtlck->index];
+	dlv->offset = dsi;
+
+	/* linelock source entry slot */
+	slv = & sdtlck->lv[sdtlck->index];
+	slv->offset = sstbl[si];
+	xssi = slv->offset - 1;
+
+	/*
+	 * move entries
+	 */
+	ns = nd = 0;
+	for (di = 0; si < sp->header.nextindex; si++, di++) {
+		ssi = sstbl[si];
+		dstbl[di] = dsi;
+
+		/* is next slot contiguous ? */
+		if (ssi != xssi + 1) {
+			/* close current linelock */
+			slv->length = ns;
+			sdtlck->index++;
+
+			/* open new linelock */
+			if (sdtlck->index < sdtlck->maxcnt)
+				slv++;
+			else {
+				sdtlck = (struct dt_lock *) txLinelock(sdtlck);
+				slv = & sdtlck->lv[0];
+			}
+
+			slv->offset = ssi;
+			ns = 0;
+		}
+
+		/*
+		 * move head/only segment of an entry
+		 */
+		/* get dst slot */
+		h = d = &dp->slot[dsi];
+
+		/* get src slot and move */
+		s = &sp->slot[ssi];
+		if (sp->header.flag & BT_LEAF) {
+			/* get source entry */
+			slh = (struct ldtentry *) s;
+			dlh = (struct ldtentry *) h;
+			snamlen = slh->namlen;
+
+			if (do_index) {
+				len = min(snamlen, DTLHDRDATALEN);
+				dlh->index = slh->index; /* little-endian */
+			} else
+				len = min(snamlen, DTLHDRDATALEN_LEGACY);
+
+			memcpy(dlh, slh, 6 + len * 2);
+
+			next = slh->next;
+
+			/* update dst head/only segment next field */
+			dsi++;
+			dlh->next = dsi;
+		} else {
+			sih = (struct idtentry *) s;
+			snamlen = sih->namlen;
+
+			len = min(snamlen, DTIHDRDATALEN);
+			dih = (struct idtentry *) h;
+			memcpy(dih, sih, 10 + len * 2);
+			next = sih->next;
+
+			dsi++;
+			dih->next = dsi;
+		}
+
+		/* free src head/only segment */
+		s->next = sfsi;
+		s->cnt = 1;
+		sfsi = ssi;
+
+		ns++;
+		nd++;
+		xssi = ssi;
+
+		/*
+		 * move additional segment(s) of the entry
+		 */
+		snamlen -= len;
+		while ((ssi = next) >= 0) {
+			/* is next slot contiguous ? */
+			if (ssi != xssi + 1) {
+				/* close current linelock */
+				slv->length = ns;
+				sdtlck->index++;
+
+				/* open new linelock */
+				if (sdtlck->index < sdtlck->maxcnt)
+					slv++;
+				else {
+					sdtlck =
+					    (struct dt_lock *)
+					    txLinelock(sdtlck);
+					slv = & sdtlck->lv[0];
+				}
+
+				slv->offset = ssi;
+				ns = 0;
+			}
+
+			/* get next source segment */
+			s = &sp->slot[ssi];
+
+			/* get next destination free slot */
+			d++;
+
+			len = min(snamlen, DTSLOTDATALEN);
+			UniStrncpy(d->name, s->name, len);
+
+			ns++;
+			nd++;
+			xssi = ssi;
+
+			dsi++;
+			d->next = dsi;
+
+			/* free source segment */
+			next = s->next;
+			s->next = sfsi;
+			s->cnt = 1;
+			sfsi = ssi;
+
+			snamlen -= len;
+		}		/* end while */
+
+		/* terminate dst last/only segment */
+		if (h == d) {
+			/* single segment entry */
+			if (dp->header.flag & BT_LEAF)
+				dlh->next = -1;
+			else
+				dih->next = -1;
+		} else
+			/* multi-segment entry */
+			d->next = -1;
+	}			/* end for */
+
+	/* close current linelock */
+	slv->length = ns;
+	sdtlck->index++;
+	*sdtlock = sdtlck;
+
+	dlv->length = nd;
+	ddtlck->index++;
+	*ddtlock = ddtlck;
+
+	/* update source header */
+	sp->header.freelist = sfsi;
+	sp->header.freecnt += nd;
+
+	/* update destination header */
+	dp->header.nextindex = di;
+
+	dp->header.freelist = dsi;
+	dp->header.freecnt -= nd;
+}
+
+
+/*
+ *	dtDeleteEntry()
+ *
+ * function: free a (leaf/internal) entry
+ *
+ * log freelist header, stbl, and each segment slot of entry
+ * (even though last/only segment next field is modified,
+ * physical image logging requires all segment slots of
+ * the entry logged to avoid applying previous updates
+ * to the same slots)
+ */
+static void dtDeleteEntry(dtpage_t * p, int fi, struct dt_lock ** dtlock)
+{
+	int fsi;		/* free entry slot index */
+	s8 *stbl;
+	struct dtslot *t;
+	int si, freecnt;
+	struct dt_lock *dtlck = *dtlock;
+	struct lv *lv;
+	int xsi, n;
+
+	/* get free entry slot index */
+	stbl = DT_GETSTBL(p);
+	fsi = stbl[fi];
+
+	/* open new linelock */
+	if (dtlck->index >= dtlck->maxcnt)
+		dtlck = (struct dt_lock *) txLinelock(dtlck);
+	lv = & dtlck->lv[dtlck->index];
+
+	lv->offset = fsi;
+
+	/* get the head/only segment */
+	t = &p->slot[fsi];
+	if (p->header.flag & BT_LEAF)
+		si = ((struct ldtentry *) t)->next;
+	else
+		si = ((struct idtentry *) t)->next;
+	t->next = si;
+	t->cnt = 1;
+
+	n = freecnt = 1;
+	xsi = fsi;
+
+	/* find the last/only segment */
+	while (si >= 0) {
+		/* is next slot contiguous ? */
+		if (si != xsi + 1) {
+			/* close current linelock */
+			lv->length = n;
+			dtlck->index++;
+
+			/* open new linelock */
+			if (dtlck->index < dtlck->maxcnt)
+				lv++;
+			else {
+				dtlck = (struct dt_lock *) txLinelock(dtlck);
+				lv = & dtlck->lv[0];
+			}
+
+			lv->offset = si;
+			n = 0;
+		}
+
+		n++;
+		xsi = si;
+		freecnt++;
+
+		t = &p->slot[si];
+		t->cnt = 1;
+		si = t->next;
+	}
+
+	/* close current linelock */
+	lv->length = n;
+	dtlck->index++;
+
+	*dtlock = dtlck;
+
+	/* update freelist */
+	t->next = p->header.freelist;
+	p->header.freelist = fsi;
+	p->header.freecnt += freecnt;
+
+	/* if delete from middle,
+	 * shift left the succedding entries in the stbl
+	 */
+	si = p->header.nextindex;
+	if (fi < si - 1)
+		memmove(&stbl[fi], &stbl[fi + 1], si - fi - 1);
+
+	p->header.nextindex--;
+}
+
+
+/*
+ *	dtTruncateEntry()
+ *
+ * function: truncate a (leaf/internal) entry
+ *
+ * log freelist header, stbl, and each segment slot of entry
+ * (even though last/only segment next field is modified,
+ * physical image logging requires all segment slots of
+ * the entry logged to avoid applying previous updates
+ * to the same slots)
+ */
+static void dtTruncateEntry(dtpage_t * p, int ti, struct dt_lock ** dtlock)
+{
+	int tsi;		/* truncate entry slot index */
+	s8 *stbl;
+	struct dtslot *t;
+	int si, freecnt;
+	struct dt_lock *dtlck = *dtlock;
+	struct lv *lv;
+	int fsi, xsi, n;
+
+	/* get free entry slot index */
+	stbl = DT_GETSTBL(p);
+	tsi = stbl[ti];
+
+	/* open new linelock */
+	if (dtlck->index >= dtlck->maxcnt)
+		dtlck = (struct dt_lock *) txLinelock(dtlck);
+	lv = & dtlck->lv[dtlck->index];
+
+	lv->offset = tsi;
+
+	/* get the head/only segment */
+	t = &p->slot[tsi];
+	ASSERT(p->header.flag & BT_INTERNAL);
+	((struct idtentry *) t)->namlen = 0;
+	si = ((struct idtentry *) t)->next;
+	((struct idtentry *) t)->next = -1;
+
+	n = 1;
+	freecnt = 0;
+	fsi = si;
+	xsi = tsi;
+
+	/* find the last/only segment */
+	while (si >= 0) {
+		/* is next slot contiguous ? */
+		if (si != xsi + 1) {
+			/* close current linelock */
+			lv->length = n;
+			dtlck->index++;
+
+			/* open new linelock */
+			if (dtlck->index < dtlck->maxcnt)
+				lv++;
+			else {
+				dtlck = (struct dt_lock *) txLinelock(dtlck);
+				lv = & dtlck->lv[0];
+			}
+
+			lv->offset = si;
+			n = 0;
+		}
+
+		n++;
+		xsi = si;
+		freecnt++;
+
+		t = &p->slot[si];
+		t->cnt = 1;
+		si = t->next;
+	}
+
+	/* close current linelock */
+	lv->length = n;
+	dtlck->index++;
+
+	*dtlock = dtlck;
+
+	/* update freelist */
+	if (freecnt == 0)
+		return;
+	t->next = p->header.freelist;
+	p->header.freelist = fsi;
+	p->header.freecnt += freecnt;
+}
+
+
+/*
+ *	dtLinelockFreelist()
+ */
+static void dtLinelockFreelist(dtpage_t * p,	/* directory page */
+			       int m,	/* max slot index */
+			       struct dt_lock ** dtlock)
+{
+	int fsi;		/* free entry slot index */
+	struct dtslot *t;
+	int si;
+	struct dt_lock *dtlck = *dtlock;
+	struct lv *lv;
+	int xsi, n;
+
+	/* get free entry slot index */
+	fsi = p->header.freelist;
+
+	/* open new linelock */
+	if (dtlck->index >= dtlck->maxcnt)
+		dtlck = (struct dt_lock *) txLinelock(dtlck);
+	lv = & dtlck->lv[dtlck->index];
+
+	lv->offset = fsi;
+
+	n = 1;
+	xsi = fsi;
+
+	t = &p->slot[fsi];
+	si = t->next;
+
+	/* find the last/only segment */
+	while (si < m && si >= 0) {
+		/* is next slot contiguous ? */
+		if (si != xsi + 1) {
+			/* close current linelock */
+			lv->length = n;
+			dtlck->index++;
+
+			/* open new linelock */
+			if (dtlck->index < dtlck->maxcnt)
+				lv++;
+			else {
+				dtlck = (struct dt_lock *) txLinelock(dtlck);
+				lv = & dtlck->lv[0];
+			}
+
+			lv->offset = si;
+			n = 0;
+		}
+
+		n++;
+		xsi = si;
+
+		t = &p->slot[si];
+		si = t->next;
+	}
+
+	/* close current linelock */
+	lv->length = n;
+	dtlck->index++;
+
+	*dtlock = dtlck;
+}
+
+
+/*
+ * NAME: dtModify
+ *
+ * FUNCTION: Modify the inode number part of a directory entry
+ *
+ * PARAMETERS:
+ *	tid	- Transaction id
+ *	ip	- Inode of parent directory
+ *	key	- Name of entry to be modified
+ *	orig_ino	- Original inode number expected in entry
+ *	new_ino	- New inode number to put into entry
+ *	flag	- JFS_RENAME
+ *
+ * RETURNS:
+ *	-ESTALE	- If entry found does not match orig_ino passed in
+ *	-ENOENT	- If no entry can be found to match key
+ *	0	- If successfully modified entry
+ */
+int dtModify(tid_t tid, struct inode *ip,
+	 struct component_name * key, ino_t * orig_ino, ino_t new_ino, int flag)
+{
+	int rc;
+	s64 bn;
+	struct metapage *mp;
+	dtpage_t *p;
+	int index;
+	struct btstack btstack;
+	struct tlock *tlck;
+	struct dt_lock *dtlck;
+	struct lv *lv;
+	s8 *stbl;
+	int entry_si;		/* entry slot index */
+	struct ldtentry *entry;
+
+	/*
+	 *      search for the entry to modify:
+	 *
+	 * dtSearch() returns (leaf page pinned, index at which to modify).
+	 */
+	if ((rc = dtSearch(ip, key, orig_ino, &btstack, flag)))
+		return rc;
+
+	/* retrieve search result */
+	DT_GETSEARCH(ip, btstack.top, bn, mp, p, index);
+
+	BT_MARK_DIRTY(mp, ip);
+	/*
+	 * acquire a transaction lock on the leaf page of named entry
+	 */
+	tlck = txLock(tid, ip, mp, tlckDTREE | tlckENTRY);
+	dtlck = (struct dt_lock *) & tlck->lock;
+
+	/* get slot index of the entry */
+	stbl = DT_GETSTBL(p);
+	entry_si = stbl[index];
+
+	/* linelock entry */
+	ASSERT(dtlck->index == 0);
+	lv = & dtlck->lv[0];
+	lv->offset = entry_si;
+	lv->length = 1;
+	dtlck->index++;
+
+	/* get the head/only segment */
+	entry = (struct ldtentry *) & p->slot[entry_si];
+
+	/* substitute the inode number of the entry */
+	entry->inumber = cpu_to_le32(new_ino);
+
+	/* unpin the leaf page */
+	DT_PUTPAGE(mp);
+
+	return 0;
+}
+
+#ifdef _JFS_DEBUG_DTREE
+/*
+ *	dtDisplayTree()
+ *
+ * function: traverse forward
+ */
+int dtDisplayTree(struct inode *ip)
+{
+	int rc;
+	struct metapage *mp;
+	dtpage_t *p;
+	s64 bn, pbn;
+	int index, lastindex, v, h;
+	pxd_t *xd;
+	struct btstack btstack;
+	struct btframe *btsp;
+	struct btframe *parent;
+	u8 *stbl;
+	int psize = 256;
+
+	printk("display B+-tree.\n");
+
+	/* clear stack */
+	btsp = btstack.stack;
+
+	/*
+	 * start with root
+	 *
+	 * root resides in the inode
+	 */
+	bn = 0;
+	v = h = 0;
+
+	/*
+	 * first access of each page:
+	 */
+      newPage:
+	DT_GETPAGE(ip, bn, mp, psize, p, rc);
+	if (rc)
+		return rc;
+
+	/* process entries forward from first index */
+	index = 0;
+	lastindex = p->header.nextindex - 1;
+
+	if (p->header.flag & BT_INTERNAL) {
+		/*
+		 * first access of each internal page
+		 */
+		printf("internal page ");
+		dtDisplayPage(ip, bn, p);
+
+		goto getChild;
+	} else {		/* (p->header.flag & BT_LEAF) */
+
+		/*
+		 * first access of each leaf page
+		 */
+		printf("leaf page ");
+		dtDisplayPage(ip, bn, p);
+
+		/*
+		 * process leaf page entries
+		 *
+		 for ( ; index <= lastindex; index++)
+		 {
+		 }
+		 */
+
+		/* unpin the leaf page */
+		DT_PUTPAGE(mp);
+	}
+
+	/*
+	 * go back up to the parent page
+	 */
+      getParent:
+	/* pop/restore parent entry for the current child page */
+	if ((parent = (btsp == btstack.stack ? NULL : --btsp)) == NULL)
+		/* current page must have been root */
+		return;
+
+	/*
+	 * parent page scan completed
+	 */
+	if ((index = parent->index) == (lastindex = parent->lastindex)) {
+		/* go back up to the parent page */
+		goto getParent;
+	}
+
+	/*
+	 * parent page has entries remaining
+	 */
+	/* get back the parent page */
+	bn = parent->bn;
+	/* v = parent->level; */
+	DT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+	if (rc)
+		return rc;
+
+	/* get next parent entry */
+	index++;
+
+	/*
+	 * internal page: go down to child page of current entry
+	 */
+      getChild:
+	/* push/save current parent entry for the child page */
+	btsp->bn = pbn = bn;
+	btsp->index = index;
+	btsp->lastindex = lastindex;
+	/* btsp->level = v; */
+	/* btsp->node = h; */
+	++btsp;
+
+	/* get current entry for the child page */
+	stbl = DT_GETSTBL(p);
+	xd = (pxd_t *) & p->slot[stbl[index]];
+
+	/*
+	 * first access of each internal entry:
+	 */
+
+	/* get child page */
+	bn = addressPXD(xd);
+	psize = lengthPXD(xd) << ip->i_ipmnt->i_l2bsize;
+
+	printk("traverse down 0x%Lx[%d]->0x%Lx\n", pbn, index, bn);
+	v++;
+	h = index;
+
+	/* release parent page */
+	DT_PUTPAGE(mp);
+
+	/* process the child page */
+	goto newPage;
+}
+
+
+/*
+ *	dtDisplayPage()
+ *
+ * function: display page
+ */
+int dtDisplayPage(struct inode *ip, s64 bn, dtpage_t * p)
+{
+	int rc;
+	struct metapage *mp;
+	struct ldtentry *lh;
+	struct idtentry *ih;
+	pxd_t *xd;
+	int i, j;
+	u8 *stbl;
+	wchar_t name[JFS_NAME_MAX + 1];
+	struct component_name key = { 0, name };
+	int freepage = 0;
+
+	if (p == NULL) {
+		freepage = 1;
+		DT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+		if (rc)
+			return rc;
+	}
+
+	/* display page control */
+	printk("bn:0x%Lx flag:0x%08x nextindex:%d\n",
+	       bn, p->header.flag, p->header.nextindex);
+
+	/* display entries */
+	stbl = DT_GETSTBL(p);
+	for (i = 0, j = 1; i < p->header.nextindex; i++, j++) {
+		dtGetKey(p, i, &key, JFS_SBI(ip->i_sb)->mntflag);
+		key.name[key.namlen] = '\0';
+		if (p->header.flag & BT_LEAF) {
+			lh = (struct ldtentry *) & p->slot[stbl[i]];
+			printf("\t[%d] %s:%d", i, key.name,
+			       le32_to_cpu(lh->inumber));
+		} else {
+			ih = (struct idtentry *) & p->slot[stbl[i]];
+			xd = (pxd_t *) ih;
+			bn = addressPXD(xd);
+			printf("\t[%d] %s:0x%Lx", i, key.name, bn);
+		}
+
+		if (j == 4) {
+			printf("\n");
+			j = 0;
+		}
+	}
+
+	printf("\n");
+
+	if (freepage)
+		DT_PUTPAGE(mp);
+
+	return 0;
+}
+#endif				/* _JFS_DEBUG_DTREE */
diff --git a/fs/jfs/jfs_dtree.h b/fs/jfs/jfs_dtree.h
new file mode 100644
index 00000000000000..d7bc0cfae1f621
--- /dev/null
+++ b/fs/jfs/jfs_dtree.h
@@ -0,0 +1,279 @@
+/*
+ *   Copyright (c) International Business Machines Corp., 2000-2002
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef _H_JFS_DTREE
+#define	_H_JFS_DTREE
+
+/*
+ *	jfs_dtree.h: directory B+-tree manager
+ */
+
+#include "jfs_btree.h"
+
+typedef union {
+	struct {
+		tid_t tid;
+		struct inode *ip;
+		u32 ino;
+	} leaf;
+	pxd_t xd;
+} ddata_t;
+
+
+/*
+ *      entry segment/slot
+ *
+ * an entry consists of type dependent head/only segment/slot and
+ * additional segments/slots linked vi next field;
+ * N.B. last/only segment of entry is terminated by next = -1;
+ */
+/*
+ *	directory page slot
+ */
+struct dtslot {
+	s8 next;		/* 1: */
+	s8 cnt;			/* 1: */
+	wchar_t name[15];	/* 30: */
+};				/* (32) */
+
+
+#define DATASLOTSIZE	16
+#define L2DATASLOTSIZE	4
+#define	DTSLOTSIZE	32
+#define	L2DTSLOTSIZE	5
+#define DTSLOTHDRSIZE	2
+#define DTSLOTDATASIZE	30
+#define DTSLOTDATALEN	15
+
+/*
+ *	 internal node entry head/only segment
+ */
+struct idtentry {
+	pxd_t xd;		/* 8: child extent descriptor */
+
+	s8 next;		/* 1: */
+	u8 namlen;		/* 1: */
+	wchar_t name[11];	/* 22: 2-byte aligned */
+};				/* (32) */
+
+#define DTIHDRSIZE	10
+#define DTIHDRDATALEN	11
+
+/* compute number of slots for entry */
+#define	NDTINTERNAL(klen) ( ((4 + (klen)) + (15 - 1)) / 15 )
+
+
+/*
+ *	leaf node entry head/only segment
+ *
+ * 	For legacy filesystems, name contains 13 wchars -- no index field
+ */
+struct ldtentry {
+	u32 inumber;		/* 4: 4-byte aligned */
+	s8 next;		/* 1: */
+	u8 namlen;		/* 1: */
+	wchar_t name[11];	/* 22: 2-byte aligned */
+	u32 index;		/* 4: index into dir_table */
+};				/* (32) */
+
+#define DTLHDRSIZE	6
+#define DTLHDRDATALEN_LEGACY	13	/* Old (OS/2) format */
+#define DTLHDRDATALEN	11
+
+/*
+ * dir_table used for directory traversal during readdir
+ */
+
+/*
+ * Keep persistent index for directory entries
+ */
+#define DO_INDEX(INODE) (JFS_SBI((INODE)->i_sb)->mntflag & JFS_DIR_INDEX)
+
+/*
+ * Maximum entry in inline directory table
+ */
+#define MAX_INLINE_DIRTABLE_ENTRY 13
+
+struct dir_table_slot {
+	u8 rsrvd;		/* 1: */
+	u8 flag;		/* 1: 0 if free */
+	u8 slot;		/* 1: slot within leaf page of entry */
+	u8 addr1;		/* 1: upper 8 bits of leaf page address */
+	u32 addr2;		/* 4: lower 32 bits of leaf page address -OR-
+				   index of next entry when this entry was deleted */
+};				/* (8) */
+
+/*
+ * flag values
+ */
+#define DIR_INDEX_VALID 1
+#define DIR_INDEX_FREE 0
+
+#define DTSaddress(dir_table_slot, address64)\
+{\
+	(dir_table_slot)->addr1 = ((u64)address64) >> 32;\
+	(dir_table_slot)->addr2 = __cpu_to_le32((address64) & 0xffffffff);\
+}
+
+#define addressDTS(dts)\
+	( ((s64)((dts)->addr1)) << 32 | __le32_to_cpu((dts)->addr2) )
+
+/* compute number of slots for entry */
+#define	NDTLEAF_LEGACY(klen)	( ((2 + (klen)) + (15 - 1)) / 15 )
+#define	NDTLEAF	NDTINTERNAL
+
+
+/*
+ *	directory root page (in-line in on-disk inode):
+ *
+ * cf. dtpage_t below.
+ */
+typedef union {
+	struct {
+		struct dasd DASD; /* 16: DASD limit/usage info */
+
+		u8 flag;	/* 1: */
+		u8 nextindex;	/* 1: next free entry in stbl */
+		s8 freecnt;	/* 1: free count */
+		s8 freelist;	/* 1: freelist header */
+
+		u32 idotdot;	/* 4: parent inode number */
+
+		s8 stbl[8];	/* 8: sorted entry index table */
+	} header;		/* (32) */
+
+	struct dtslot slot[9];
+} dtroot_t;
+
+#define PARENT(IP) \
+	(le32_to_cpu(JFS_IP(IP)->i_dtroot.header.idotdot))
+
+#define DTROOTMAXSLOT	9
+
+#define	dtEmpty(IP) (JFS_IP(IP)->i_dtroot.header.nextindex == 0)
+
+
+/*
+ *	directory regular page:
+ *
+ *	entry slot array of 32 byte slot
+ *
+ * sorted entry slot index table (stbl):
+ * contiguous slots at slot specified by stblindex,
+ * 1-byte per entry
+ *   512 byte block:  16 entry tbl (1 slot)
+ *  1024 byte block:  32 entry tbl (1 slot)
+ *  2048 byte block:  64 entry tbl (2 slot)
+ *  4096 byte block: 128 entry tbl (4 slot)
+ *
+ * data area:
+ *   512 byte block:  16 - 2 =  14 slot
+ *  1024 byte block:  32 - 2 =  30 slot
+ *  2048 byte block:  64 - 3 =  61 slot
+ *  4096 byte block: 128 - 5 = 123 slot
+ *
+ * N.B. index is 0-based; index fields refer to slot index
+ * except nextindex which refers to entry index in stbl;
+ * end of entry stot list or freelist is marked with -1.
+ */
+typedef union {
+	struct {
+		s64 next;	/* 8: next sibling */
+		s64 prev;	/* 8: previous sibling */
+
+		u8 flag;	/* 1: */
+		u8 nextindex;	/* 1: next entry index in stbl */
+		s8 freecnt;	/* 1: */
+		s8 freelist;	/* 1: slot index of head of freelist */
+
+		u8 maxslot;	/* 1: number of slots in page slot[] */
+		u8 stblindex;	/* 1: slot index of start of stbl */
+		u8 rsrvd[2];	/* 2: */
+
+		pxd_t self;	/* 8: self pxd */
+	} header;		/* (32) */
+
+	struct dtslot slot[128];
+} dtpage_t;
+
+#define DTPAGEMAXSLOT        128
+
+#define DT8THPGNODEBYTES     512
+#define DT8THPGNODETSLOTS      1
+#define DT8THPGNODESLOTS      16
+
+#define DTQTRPGNODEBYTES    1024
+#define DTQTRPGNODETSLOTS      1
+#define DTQTRPGNODESLOTS      32
+
+#define DTHALFPGNODEBYTES   2048
+#define DTHALFPGNODETSLOTS     2
+#define DTHALFPGNODESLOTS     64
+
+#define DTFULLPGNODEBYTES   4096
+#define DTFULLPGNODETSLOTS     4
+#define DTFULLPGNODESLOTS    128
+
+#define DTENTRYSTART	1
+
+/* get sorted entry table of the page */
+#define DT_GETSTBL(p) ( ((p)->header.flag & BT_ROOT) ?\
+	((dtroot_t *)(p))->header.stbl : \
+	(s8 *)&(p)->slot[(p)->header.stblindex] )
+
+/*
+ * Flags for dtSearch
+ */
+#define JFS_CREATE 1
+#define JFS_LOOKUP 2
+#define JFS_REMOVE 3
+#define JFS_RENAME 4
+
+#define DIRENTSIZ(namlen) \
+    ( (sizeof(struct dirent) - 2*(JFS_NAME_MAX+1) + 2*((namlen)+1) + 3) &~ 3 )
+
+/*
+ * Maximum file offset for directories.
+ */
+#define DIREND	INT_MAX
+
+/*
+ *	external declarations
+ */
+extern void dtInitRoot(tid_t tid, struct inode *ip, u32 idotdot);
+
+extern int dtSearch(struct inode *ip, struct component_name * key,
+		    ino_t * data, struct btstack * btstack, int flag);
+
+extern int dtInsert(tid_t tid, struct inode *ip, struct component_name * key,
+		    ino_t * ino, struct btstack * btstack);
+
+extern int dtDelete(tid_t tid, struct inode *ip, struct component_name * key,
+		    ino_t * data, int flag);
+
+extern int dtModify(tid_t tid, struct inode *ip, struct component_name * key,
+		    ino_t * orig_ino, ino_t new_ino, int flag);
+
+extern int jfs_readdir(struct file *filp, void *dirent, filldir_t filldir);
+
+#ifdef  _JFS_DEBUG_DTREE
+extern int dtDisplayTree(struct inode *ip);
+
+extern int dtDisplayPage(struct inode *ip, s64 bn, dtpage_t * p);
+#endif				/* _JFS_DEBUG_DTREE */
+
+#endif				/* !_H_JFS_DTREE */
diff --git a/fs/jfs/jfs_extent.c b/fs/jfs/jfs_extent.c
new file mode 100644
index 00000000000000..c68920f858b277
--- /dev/null
+++ b/fs/jfs/jfs_extent.c
@@ -0,0 +1,657 @@
+/*
+ *   Copyright (C) International Business Machines Corp., 2000-2003
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/fs.h>
+#include "jfs_incore.h"
+#include "jfs_superblock.h"
+#include "jfs_dmap.h"
+#include "jfs_extent.h"
+#include "jfs_debug.h"
+
+/*
+ * forward references
+ */
+static int extBalloc(struct inode *, s64, s64 *, s64 *);
+#ifdef _NOTYET
+static int extBrealloc(struct inode *, s64, s64, s64 *, s64 *);
+#endif
+static s64 extRoundDown(s64 nb);
+
+/*
+ * external references
+ */
+extern int jfs_commit_inode(struct inode *, int);
+
+
+#define DPD(a)          (printk("(a): %d\n",(a)))
+#define DPC(a)          (printk("(a): %c\n",(a)))
+#define DPL1(a)					\
+{						\
+	if ((a) >> 32)				\
+		printk("(a): %x%08x  ",(a));	\
+	else					\
+		printk("(a): %x  ",(a) << 32);	\
+}
+#define DPL(a)					\
+{						\
+	if ((a) >> 32)				\
+		printk("(a): %x%08x\n",(a));	\
+	else					\
+		printk("(a): %x\n",(a) << 32);	\
+}
+
+#define DPD1(a)         (printk("(a): %d  ",(a)))
+#define DPX(a)          (printk("(a): %08x\n",(a)))
+#define DPX1(a)         (printk("(a): %08x  ",(a)))
+#define DPS(a)          (printk("%s\n",(a)))
+#define DPE(a)          (printk("\nENTERING: %s\n",(a)))
+#define DPE1(a)          (printk("\nENTERING: %s",(a)))
+#define DPS1(a)         (printk("  %s  ",(a)))
+
+
+/*
+ * NAME:	extAlloc()
+ *
+ * FUNCTION:    allocate an extent for a specified page range within a
+ *		file.
+ *
+ * PARAMETERS:
+ *	ip	- the inode of the file.
+ *	xlen	- requested extent length.
+ *	pno	- the starting page number with the file.
+ *	xp	- pointer to an xad.  on entry, xad describes an
+ *		  extent that is used as an allocation hint if the
+ *		  xaddr of the xad is non-zero.  on successful exit,
+ *		  the xad describes the newly allocated extent.
+ *	abnr	- boolean_t indicating whether the newly allocated extent
+ *		  should be marked as allocated but not recorded.
+ *
+ * RETURN VALUES:
+ *      0       - success
+ *      -EIO	- i/o error.
+ *      -ENOSPC	- insufficient disk resources.
+ */
+int
+extAlloc(struct inode *ip, s64 xlen, s64 pno, xad_t * xp, boolean_t abnr)
+{
+	struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb);
+	s64 nxlen, nxaddr, xoff, hint, xaddr = 0;
+	int rc;
+	int xflag;
+
+	/* This blocks if we are low on resources */
+	txBeginAnon(ip->i_sb);
+
+	/* Avoid race with jfs_commit_inode() */
+	down(&JFS_IP(ip)->commit_sem);
+
+	/* validate extent length */
+	if (xlen > MAXXLEN)
+		xlen = MAXXLEN;
+
+	/* get the page's starting extent offset */
+	xoff = pno << sbi->l2nbperpage;
+
+	/* check if an allocation hint was provided */
+	if ((hint = addressXAD(xp))) {
+		/* get the size of the extent described by the hint */
+		nxlen = lengthXAD(xp);
+
+		/* check if the hint is for the portion of the file
+		 * immediately previous to the current allocation
+		 * request and if hint extent has the same abnr
+		 * value as the current request.  if so, we can
+		 * extend the hint extent to include the current
+		 * extent if we can allocate the blocks immediately
+		 * following the hint extent.
+		 */
+		if (offsetXAD(xp) + nxlen == xoff &&
+		    abnr == ((xp->flag & XAD_NOTRECORDED) ? TRUE : FALSE))
+			xaddr = hint + nxlen;
+
+		/* adjust the hint to the last block of the extent */
+		hint += (nxlen - 1);
+	}
+
+	/* allocate the disk blocks for the extent.  initially, extBalloc()
+	 * will try to allocate disk blocks for the requested size (xlen). 
+	 * if this fails (xlen contigious free blocks not avaliable), it'll
+	 * try to allocate a smaller number of blocks (producing a smaller
+	 * extent), with this smaller number of blocks consisting of the
+	 * requested number of blocks rounded down to the next smaller
+	 * power of 2 number (i.e. 16 -> 8).  it'll continue to round down
+	 * and retry the allocation until the number of blocks to allocate
+	 * is smaller than the number of blocks per page.
+	 */
+	nxlen = xlen;
+	if ((rc = extBalloc(ip, hint ? hint : INOHINT(ip), &nxlen, &nxaddr))) {
+		up(&JFS_IP(ip)->commit_sem);
+		return (rc);
+	}
+
+	/* determine the value of the extent flag */
+	xflag = (abnr == TRUE) ? XAD_NOTRECORDED : 0;
+
+	/* if we can extend the hint extent to cover the current request, 
+	 * extend it.  otherwise, insert a new extent to
+	 * cover the current request.
+	 */
+	if (xaddr && xaddr == nxaddr)
+		rc = xtExtend(0, ip, xoff, (int) nxlen, 0);
+	else
+		rc = xtInsert(0, ip, xflag, xoff, (int) nxlen, &nxaddr, 0);
+
+	/* if the extend or insert failed, 
+	 * free the newly allocated blocks and return the error.
+	 */
+	if (rc) {
+		dbFree(ip, nxaddr, nxlen);
+		up(&JFS_IP(ip)->commit_sem);
+		return (rc);
+	}
+
+	/* update the number of blocks allocated to the file */
+	ip->i_blocks += LBLK2PBLK(ip->i_sb, nxlen);
+
+	/* set the results of the extent allocation */
+	XADaddress(xp, nxaddr);
+	XADlength(xp, nxlen);
+	XADoffset(xp, xoff);
+	xp->flag = xflag;
+
+	mark_inode_dirty(ip);
+	set_cflag(COMMIT_Syncdata, ip);
+
+	up(&JFS_IP(ip)->commit_sem);
+	/*
+	 * COMMIT_SyncList flags an anonymous tlock on page that is on
+	 * sync list.
+	 * We need to commit the inode to get the page written disk.
+	 */
+	if (test_and_clear_cflag(COMMIT_Synclist,ip))
+		jfs_commit_inode(ip, 0);
+
+	return (0);
+}
+
+
+#ifdef _NOTYET
+/*
+ * NAME:        extRealloc()
+ *
+ * FUNCTION:    extend the allocation of a file extent containing a
+ *		partial back last page.
+ *
+ * PARAMETERS:
+ *	ip	- the inode of the file.
+ *	cp	- cbuf for the partial backed last page.
+ *	xlen	- request size of the resulting extent.
+ *	xp	- pointer to an xad. on successful exit, the xad
+ *		  describes the newly allocated extent.
+ *	abnr	- boolean_t indicating whether the newly allocated extent
+ *		  should be marked as allocated but not recorded.
+ *
+ * RETURN VALUES:
+ *      0       - success
+ *      -EIO	- i/o error.
+ *      -ENOSPC	- insufficient disk resources.
+ */
+int extRealloc(struct inode *ip, s64 nxlen, xad_t * xp, boolean_t abnr)
+{
+	struct super_block *sb = ip->i_sb;
+	s64 xaddr, xlen, nxaddr, delta, xoff;
+	s64 ntail, nextend, ninsert;
+	int rc, nbperpage = JFS_SBI(sb)->nbperpage;
+	int xflag;
+
+	/* This blocks if we are low on resources */
+	txBeginAnon(ip->i_sb);
+
+	down(&JFS_IP(ip)->commit_sem);
+	/* validate extent length */
+	if (nxlen > MAXXLEN)
+		nxlen = MAXXLEN;
+
+	/* get the extend (partial) page's disk block address and
+	 * number of blocks.
+	 */
+	xaddr = addressXAD(xp);
+	xlen = lengthXAD(xp);
+	xoff = offsetXAD(xp);
+
+	/* if the extend page is abnr and if the request is for
+	 * the extent to be allocated and recorded, 
+	 * make the page allocated and recorded.
+	 */
+	if ((xp->flag & XAD_NOTRECORDED) && !abnr) {
+		xp->flag = 0;
+		if ((rc = xtUpdate(0, ip, xp)))
+			goto exit;
+	}
+
+	/* try to allocated the request number of blocks for the
+	 * extent.  dbRealloc() first tries to satisfy the request
+	 * by extending the allocation in place. otherwise, it will
+	 * try to allocate a new set of blocks large enough for the
+	 * request.  in satisfying a request, dbReAlloc() may allocate
+	 * less than what was request but will always allocate enough
+	 * space as to satisfy the extend page.
+	 */
+	if ((rc = extBrealloc(ip, xaddr, xlen, &nxlen, &nxaddr)))
+		goto exit;
+
+	delta = nxlen - xlen;
+
+	/* check if the extend page is not abnr but the request is abnr
+	 * and the allocated disk space is for more than one page.  if this
+	 * is the case, there is a miss match of abnr between the extend page
+	 * and the one or more pages following the extend page.  as a result,
+	 * two extents will have to be manipulated. the first will be that
+	 * of the extent of the extend page and will be manipulated thru
+	 * an xtExtend() or an xtTailgate(), depending upon whether the
+	 * disk allocation occurred as an inplace extension.  the second
+	 * extent will be manipulated (created) through an xtInsert() and
+	 * will be for the pages following the extend page.
+	 */
+	if (abnr && (!(xp->flag & XAD_NOTRECORDED)) && (nxlen > nbperpage)) {
+		ntail = nbperpage;
+		nextend = ntail - xlen;
+		ninsert = nxlen - nbperpage;
+
+		xflag = XAD_NOTRECORDED;
+	} else {
+		ntail = nxlen;
+		nextend = delta;
+		ninsert = 0;
+
+		xflag = xp->flag;
+	}
+
+	/* if we were able to extend the disk allocation in place,
+	 * extend the extent.  otherwise, move the extent to a
+	 * new disk location.
+	 */
+	if (xaddr == nxaddr) {
+		/* extend the extent */
+		if ((rc = xtExtend(0, ip, xoff + xlen, (int) nextend, 0))) {
+			dbFree(ip, xaddr + xlen, delta);
+			goto exit;
+		}
+	} else {
+		/*
+		 * move the extent to a new location:
+		 *
+		 * xtTailgate() accounts for relocated tail extent;
+		 */
+		if ((rc = xtTailgate(0, ip, xoff, (int) ntail, nxaddr, 0))) {
+			dbFree(ip, nxaddr, nxlen);
+			goto exit;
+		}
+	}
+
+
+	/* check if we need to also insert a new extent */
+	if (ninsert) {
+		/* perform the insert.  if it fails, free the blocks
+		 * to be inserted and make it appear that we only did
+		 * the xtExtend() or xtTailgate() above.
+		 */
+		xaddr = nxaddr + ntail;
+		if (xtInsert (0, ip, xflag, xoff + ntail, (int) ninsert,
+			      &xaddr, 0)) {
+			dbFree(ip, xaddr, (s64) ninsert);
+			delta = nextend;
+			nxlen = ntail;
+			xflag = 0;
+		}
+	}
+
+	/* update the inode with the number of blocks allocated */
+	ip->i_blocks += LBLK2PBLK(sb, delta);
+
+	/* set the return results */
+	XADaddress(xp, nxaddr);
+	XADlength(xp, nxlen);
+	XADoffset(xp, xoff);
+	xp->flag = xflag;
+
+	mark_inode_dirty(ip);
+exit:
+	up(&JFS_IP(ip)->commit_sem);
+	return (rc);
+}
+#endif			/* _NOTYET */
+
+
+/*
+ * NAME:        extHint()
+ *
+ * FUNCTION:    produce an extent allocation hint for a file offset.
+ *
+ * PARAMETERS:
+ *	ip	- the inode of the file.
+ *	offset  - file offset for which the hint is needed.
+ *	xp	- pointer to the xad that is to be filled in with
+ *		  the hint.
+ *
+ * RETURN VALUES:
+ *      0       - success
+ *      -EIO	- i/o error.
+ */
+int extHint(struct inode *ip, s64 offset, xad_t * xp)
+{
+	struct super_block *sb = ip->i_sb;
+	struct xadlist xadl;
+	struct lxdlist lxdl;
+	lxd_t lxd;
+	s64 prev;
+	int rc, nbperpage = JFS_SBI(sb)->nbperpage;
+
+	/* init the hint as "no hint provided" */
+	XADaddress(xp, 0);
+
+	/* determine the starting extent offset of the page previous
+	 * to the page containing the offset.
+	 */
+	prev = ((offset & ~POFFSET) >> JFS_SBI(sb)->l2bsize) - nbperpage;
+
+	/* if the offsets in the first page of the file,
+	 * no hint provided.
+	 */
+	if (prev < 0)
+		return (0);
+
+	/* prepare to lookup the previous page's extent info */
+	lxdl.maxnlxd = 1;
+	lxdl.nlxd = 1;
+	lxdl.lxd = &lxd;
+	LXDoffset(&lxd, prev)
+	    LXDlength(&lxd, nbperpage);
+
+	xadl.maxnxad = 1;
+	xadl.nxad = 0;
+	xadl.xad = xp;
+
+	/* perform the lookup */
+	if ((rc = xtLookupList(ip, &lxdl, &xadl, 0)))
+		return (rc);
+
+	/* check if not extent exists for the previous page.  
+	 * this is possible for sparse files.
+	 */
+	if (xadl.nxad == 0) {
+//              assert(ISSPARSE(ip));
+		return (0);
+	}
+
+	/* only preserve the abnr flag within the xad flags
+	 * of the returned hint.
+	 */
+	xp->flag &= XAD_NOTRECORDED;
+
+        if(xadl.nxad != 1 || lengthXAD(xp) != nbperpage) {          
+		jfs_error(ip->i_sb, "extHint: corrupt xtree");
+		return -EIO;
+        }
+
+	return (0);
+}
+
+
+/*
+ * NAME:        extRecord()
+ *
+ * FUNCTION:    change a page with a file from not recorded to recorded.
+ *
+ * PARAMETERS:
+ *	ip	- inode of the file.
+ *	cp	- cbuf of the file page.
+ *
+ * RETURN VALUES:
+ *      0       - success
+ *      -EIO	- i/o error.
+ *      -ENOSPC	- insufficient disk resources.
+ */
+int extRecord(struct inode *ip, xad_t * xp)
+{
+	int rc;
+
+	txBeginAnon(ip->i_sb);
+
+	down(&JFS_IP(ip)->commit_sem);
+
+	/* update the extent */
+	rc = xtUpdate(0, ip, xp);
+
+	up(&JFS_IP(ip)->commit_sem);
+	return rc;
+}
+
+
+#ifdef _NOTYET
+/*
+ * NAME:        extFill()
+ *
+ * FUNCTION:    allocate disk space for a file page that represents
+ *		a file hole.
+ *
+ * PARAMETERS:
+ *	ip	- the inode of the file.
+ *	cp	- cbuf of the file page represent the hole.
+ *
+ * RETURN VALUES:
+ *      0       - success
+ *      -EIO	- i/o error.
+ *      -ENOSPC	- insufficient disk resources.
+ */
+int extFill(struct inode *ip, xad_t * xp)
+{
+	int rc, nbperpage = JFS_SBI(ip->i_sb)->nbperpage;
+	s64 blkno = offsetXAD(xp) >> ip->i_blksize;
+
+//      assert(ISSPARSE(ip));
+
+	/* initialize the extent allocation hint */
+	XADaddress(xp, 0);
+
+	/* allocate an extent to fill the hole */
+	if ((rc = extAlloc(ip, nbperpage, blkno, xp, FALSE)))
+		return (rc);
+
+	assert(lengthPXD(xp) == nbperpage);
+
+	return (0);
+}
+#endif			/* _NOTYET */
+
+
+/*
+ * NAME:	extBalloc()
+ *
+ * FUNCTION:    allocate disk blocks to form an extent.
+ *
+ *		initially, we will try to allocate disk blocks for the
+ *		requested size (nblocks).  if this fails (nblocks 
+ *		contigious free blocks not avaliable), we'll try to allocate
+ *		a smaller number of blocks (producing a smaller extent), with
+ *		this smaller number of blocks consisting of the requested
+ *		number of blocks rounded down to the next smaller power of 2
+ *		number (i.e. 16 -> 8).  we'll continue to round down and
+ *		retry the allocation until the number of blocks to allocate
+ *		is smaller than the number of blocks per page.
+ *		
+ * PARAMETERS:
+ *	ip	 - the inode of the file.
+ *	hint	 - disk block number to be used as an allocation hint.
+ *	*nblocks - pointer to an s64 value.  on entry, this value specifies
+ *		   the desired number of block to be allocated. on successful
+ *		   exit, this value is set to the number of blocks actually
+ *		   allocated.
+ *	blkno	 - pointer to a block address that is filled in on successful
+ *		   return with the starting block number of the newly 
+ *		   allocated block range.
+ *
+ * RETURN VALUES:
+ *      0       - success
+ *      -EIO	- i/o error.
+ *      -ENOSPC	- insufficient disk resources.
+ */
+static int
+extBalloc(struct inode *ip, s64 hint, s64 * nblocks, s64 * blkno)
+{
+	struct jfs_inode_info *ji = JFS_IP(ip);
+	struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb);
+	s64 nb, nblks, daddr, max;
+	int rc, nbperpage = sbi->nbperpage;
+	struct bmap *bmp = sbi->bmap;
+	int ag;
+
+	/* get the number of blocks to initially attempt to allocate.
+	 * we'll first try the number of blocks requested unless this
+	 * number is greater than the maximum number of contigious free
+	 * blocks in the map. in that case, we'll start off with the 
+	 * maximum free.
+	 */
+	max = (s64) 1 << bmp->db_maxfreebud;
+	if (*nblocks >= max && *nblocks > nbperpage)
+		nb = nblks = (max > nbperpage) ? max : nbperpage;
+	else
+		nb = nblks = *nblocks;
+
+	/* try to allocate blocks */
+	while ((rc = dbAlloc(ip, hint, nb, &daddr))) {
+		/* if something other than an out of space error,
+		 * stop and return this error.
+		 */
+		if (rc != -ENOSPC)
+			return (rc);
+
+		/* decrease the allocation request size */
+		nb = min(nblks, extRoundDown(nb));
+
+		/* give up if we cannot cover a page */
+		if (nb < nbperpage)
+			return (rc);
+	}
+
+	*nblocks = nb;
+	*blkno = daddr;
+
+	if (S_ISREG(ip->i_mode) && (ji->fileset == FILESYSTEM_I)) {
+		ag = BLKTOAG(daddr, sbi);
+		spin_lock_irq(&ji->ag_lock);
+		if (ji->active_ag == -1) {
+			atomic_inc(&bmp->db_active[ag]);
+			ji->active_ag = ag;
+		} else if (ji->active_ag != ag) {
+			atomic_dec(&bmp->db_active[ji->active_ag]);
+			atomic_inc(&bmp->db_active[ag]);
+			ji->active_ag = ag;
+		}
+		spin_unlock_irq(&ji->ag_lock);
+	}
+
+	return (0);
+}
+
+
+#ifdef _NOTYET
+/*
+ * NAME:	extBrealloc()
+ *
+ * FUNCTION:    attempt to extend an extent's allocation.
+ *
+ *		initially, we will try to extend the extent's allocation
+ *		in place.  if this fails, we'll try to move the extent
+ *		to a new set of blocks. if moving the extent, we initially
+ *		will try to allocate disk blocks for the requested size
+ *		(nnew).  if this fails 	(nnew contigious free blocks not
+ *		avaliable), we'll try  to allocate a smaller number of
+ *		blocks (producing a smaller extent), with this smaller
+ *		number of blocks consisting of the requested number of
+ *		blocks rounded down to the next smaller power of 2
+ *		number (i.e. 16 -> 8).  we'll continue to round down and
+ *		retry the allocation until the number of blocks to allocate
+ *		is smaller than the number of blocks per page.
+ *		
+ * PARAMETERS:
+ *	ip	 - the inode of the file.
+ *	blkno    - starting block number of the extents current allocation.
+ *	nblks    - number of blocks within the extents current allocation.
+ *	newnblks - pointer to a s64 value.  on entry, this value is the
+ *		   the new desired extent size (number of blocks).  on
+ *		   successful exit, this value is set to the extent's actual
+ *		   new size (new number of blocks).
+ *	newblkno - the starting block number of the extents new allocation.
+ *
+ * RETURN VALUES:
+ *      0       - success
+ *      -EIO	- i/o error.
+ *      -ENOSPC	- insufficient disk resources.
+ */
+static int
+extBrealloc(struct inode *ip,
+	    s64 blkno, s64 nblks, s64 * newnblks, s64 * newblkno)
+{
+	int rc;
+
+	/* try to extend in place */
+	if ((rc = dbExtend(ip, blkno, nblks, *newnblks - nblks)) == 0) {
+		*newblkno = blkno;
+		return (0);
+	} else {
+		if (rc != -ENOSPC)
+			return (rc);
+	}
+
+	/* in place extension not possible.  
+	 * try to move the extent to a new set of blocks.
+	 */
+	return (extBalloc(ip, blkno, newnblks, newblkno));
+}
+#endif			/* _NOTYET */
+
+
+/*
+ * NAME:        extRoundDown()
+ *
+ * FUNCTION:    round down a specified number of blocks to the next
+ *		smallest power of 2 number.
+ *
+ * PARAMETERS:
+ *	nb	- the inode of the file.
+ *
+ * RETURN VALUES:
+ *      next smallest power of 2 number.
+ */
+static s64 extRoundDown(s64 nb)
+{
+	int i;
+	u64 m, k;
+
+	for (i = 0, m = (u64) 1 << 63; i < 64; i++, m >>= 1) {
+		if (m & nb)
+			break;
+	}
+
+	i = 63 - i;
+	k = (u64) 1 << i;
+	k = ((k - 1) & nb) ? k : k >> 1;
+
+	return (k);
+}
diff --git a/fs/jfs/jfs_extent.h b/fs/jfs/jfs_extent.h
new file mode 100644
index 00000000000000..e80fc7ced87d96
--- /dev/null
+++ b/fs/jfs/jfs_extent.h
@@ -0,0 +1,31 @@
+/*
+ *   Copyright (c) International Business Machines Corp., 2000-2001
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef	_H_JFS_EXTENT
+#define _H_JFS_EXTENT
+
+/*  get block allocation allocation hint as location of disk inode */
+#define	INOHINT(ip)	\
+	(addressPXD(&(JFS_IP(ip)->ixpxd)) + lengthPXD(&(JFS_IP(ip)->ixpxd)) - 1)
+
+extern int	extAlloc(struct inode *, s64, s64, xad_t *, boolean_t);
+extern int	extFill(struct inode *, xad_t *);
+extern int	extHint(struct inode *, s64, xad_t *);
+extern int	extRealloc(struct inode *, s64, xad_t *, boolean_t);
+extern int	extRecord(struct inode *, xad_t *);
+
+#endif	/* _H_JFS_EXTENT */
diff --git a/fs/jfs/jfs_filsys.h b/fs/jfs/jfs_filsys.h
new file mode 100644
index 00000000000000..75d9f6788913ef
--- /dev/null
+++ b/fs/jfs/jfs_filsys.h
@@ -0,0 +1,280 @@
+/*
+ *   Copyright (C) International Business Machines Corp., 2000-2003
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef _H_JFS_FILSYS
+#define _H_JFS_FILSYS
+
+/*
+ *	jfs_filsys.h
+ *
+ * file system (implementation-dependent) constants 
+ *
+ * refer to <limits.h> for system wide implementation-dependent constants 
+ */
+
+/*
+ *	 file system option (superblock flag)
+ */
+/* mount time flag to disable journaling to disk */
+#define JFS_NOINTEGRITY 0x00000010
+
+/* mount time flags for error handling */
+#define JFS_ERR_REMOUNT_RO 0x00000002   /* remount read-only */
+#define JFS_ERR_CONTINUE   0x00000004   /* continue */
+#define JFS_ERR_PANIC      0x00000008   /* panic */
+
+/* platform option (conditional compilation) */
+#define JFS_AIX		0x80000000	/* AIX support */
+/*	POSIX name/directory  support */
+
+#define JFS_OS2		0x40000000	/* OS/2 support */
+/*	case-insensitive name/directory support */
+
+#define JFS_DFS		0x20000000	/* DCE DFS LFS support */
+
+#define JFS_LINUX      	0x10000000	/* Linux support */
+/*	case-sensitive name/directory support */
+
+/* directory option */
+#define JFS_UNICODE	0x00000001	/* unicode name */
+
+/* commit option */
+#define	JFS_COMMIT	0x00000f00	/* commit option mask */
+#define	JFS_GROUPCOMMIT	0x00000100	/* group (of 1) commit */
+#define	JFS_LAZYCOMMIT	0x00000200	/* lazy commit */
+#define	JFS_TMPFS	0x00000400	/* temporary file system - 
+					 * do not log/commit:
+					 */
+
+/* log logical volume option */
+#define	JFS_INLINELOG	0x00000800	/* inline log within file system */
+#define JFS_INLINEMOVE	0x00001000	/* inline log being moved */
+
+/* Secondary aggregate inode table */
+#define JFS_BAD_SAIT	0x00010000	/* current secondary ait is bad */
+
+/* sparse regular file support */
+#define JFS_SPARSE	0x00020000	/* sparse regular file */
+
+/* DASD Limits		F226941 */
+#define JFS_DASD_ENABLED	0x00040000	/* DASD limits enabled */
+#define	JFS_DASD_PRIME		0x00080000	/* Prime DASD usage on boot */
+
+/* big endian flag */
+#define	JFS_SWAP_BYTES		0x00100000	/* running on big endian computer */
+
+/* Directory index */
+#define JFS_DIR_INDEX		0x00200000	/* Persistant index for */
+						/* directory entries    */
+
+
+/*
+ *	buffer cache configuration
+ */
+/* page size */
+#ifdef PSIZE
+#undef PSIZE
+#endif
+#define	PSIZE		4096	/* page size (in byte) */
+#define	L2PSIZE		12	/* log2(PSIZE) */
+#define	POFFSET		4095	/* offset within page */
+
+/* buffer page size */
+#define BPSIZE	PSIZE
+
+/*
+ *	fs fundamental size
+ *
+ * PSIZE >= file system block size >= PBSIZE >= DISIZE
+ */
+#define	PBSIZE		512	/* physical block size (in byte) */
+#define	L2PBSIZE	9	/* log2(PBSIZE) */
+
+#define DISIZE		512	/* on-disk inode size (in byte) */
+#define L2DISIZE	9	/* log2(DISIZE) */
+
+#define IDATASIZE	256	/* inode inline data size */
+#define	IXATTRSIZE	128	/* inode inline extended attribute size */
+
+#define XTPAGE_SIZE     4096
+#define log2_PAGESIZE     12
+
+#define IAG_SIZE        4096
+#define IAG_EXTENT_SIZE 4096
+#define	INOSPERIAG	4096	/* number of disk inodes per iag */
+#define	L2INOSPERIAG	12	/* l2 number of disk inodes per iag */
+#define INOSPEREXT	32	/* number of disk inode per extent */
+#define L2INOSPEREXT	5	/* l2 number of disk inode per extent */
+#define	IXSIZE		(DISIZE * INOSPEREXT)	/* inode extent size */
+#define	INOSPERPAGE	8	/* number of disk inodes per 4K page */
+#define	L2INOSPERPAGE	3	/* log2(INOSPERPAGE) */
+
+#define	IAGFREELIST_LWM	64
+
+#define INODE_EXTENT_SIZE	IXSIZE	/* inode extent size */
+#define NUM_INODE_PER_EXTENT	INOSPEREXT
+#define NUM_INODE_PER_IAG	INOSPERIAG
+
+#define MINBLOCKSIZE		512
+#define MAXBLOCKSIZE		4096
+#define	MAXFILESIZE		((s64)1 << 52)
+
+#define JFS_LINK_MAX		65535	/* nlink_t is unsigned short */
+
+/* Minimum number of bytes supported for a JFS partition */
+#define MINJFS			(0x1000000)
+#define MINJFSTEXT		"16"
+
+/*
+ * file system block size -> physical block size
+ */
+#define LBOFFSET(x)	((x) & (PBSIZE - 1))
+#define LBNUMBER(x)	((x) >> L2PBSIZE)
+#define	LBLK2PBLK(sb,b)	((b) << (sb->s_blocksize_bits - L2PBSIZE))
+#define	PBLK2LBLK(sb,b)	((b) >> (sb->s_blocksize_bits - L2PBSIZE))
+/* size in byte -> last page number */
+#define	SIZE2PN(size)	( ((s64)((size) - 1)) >> (L2PSIZE) )
+/* size in byte -> last file system block number */
+#define	SIZE2BN(size, l2bsize) ( ((s64)((size) - 1)) >> (l2bsize) )
+
+/*
+ * fixed physical block address (physical block size = 512 byte)
+ *
+ * NOTE: since we can't guarantee a physical block size of 512 bytes the use of
+ *	 these macros should be removed and the byte offset macros used instead.
+ */
+#define SUPER1_B	64	/* primary superblock */
+#define	AIMAP_B		(SUPER1_B + 8)	/* 1st extent of aggregate inode map */
+#define	AITBL_B		(AIMAP_B + 16)	/*
+					 * 1st extent of aggregate inode table
+					 */
+#define	SUPER2_B	(AITBL_B + 32)	/* 2ndary superblock pbn */
+#define	BMAP_B		(SUPER2_B + 8)	/* block allocation map */
+
+/*
+ * SIZE_OF_SUPER defines the total amount of space reserved on disk for the
+ * superblock.  This is not the same as the superblock structure, since all of
+ * this space is not currently being used.
+ */
+#define SIZE_OF_SUPER	PSIZE
+
+/*
+ * SIZE_OF_AG_TABLE defines the amount of space reserved to hold the AG table
+ */
+#define SIZE_OF_AG_TABLE	PSIZE
+
+/*
+ * SIZE_OF_MAP_PAGE defines the amount of disk space reserved for each page of
+ * the inode allocation map (to hold iag)
+ */
+#define SIZE_OF_MAP_PAGE	PSIZE
+
+/*
+ * fixed byte offset address
+ */
+#define SUPER1_OFF	0x8000	/* primary superblock */
+#define AIMAP_OFF	(SUPER1_OFF + SIZE_OF_SUPER)
+					/*
+					 * Control page of aggregate inode map
+					 * followed by 1st extent of map
+					 */
+#define AITBL_OFF	(AIMAP_OFF + (SIZE_OF_MAP_PAGE << 1))
+					/* 
+					 * 1st extent of aggregate inode table
+					 */
+#define SUPER2_OFF	(AITBL_OFF + INODE_EXTENT_SIZE)
+					/*
+					 * secondary superblock
+					 */
+#define BMAP_OFF	(SUPER2_OFF + SIZE_OF_SUPER)
+					/*
+					 * block allocation map
+					 */
+
+/*
+ * The following macro is used to indicate the number of reserved disk blocks at
+ * the front of an aggregate, in terms of physical blocks.  This value is
+ * currently defined to be 32K.  This turns out to be the same as the primary
+ * superblock's address, since it directly follows the reserved blocks.
+ */
+#define AGGR_RSVD_BLOCKS	SUPER1_B
+
+/*
+ * The following macro is used to indicate the number of reserved bytes at the
+ * front of an aggregate.  This value is currently defined to be 32K.  This
+ * turns out to be the same as the primary superblock's byte offset, since it
+ * directly follows the reserved blocks.
+ */
+#define AGGR_RSVD_BYTES	SUPER1_OFF
+
+/*
+ * The following macro defines the byte offset for the first inode extent in
+ * the aggregate inode table.  This allows us to find the self inode to find the
+ * rest of the table.  Currently this value is 44K.
+ */
+#define AGGR_INODE_TABLE_START	AITBL_OFF
+
+/*
+ *	fixed reserved inode number
+ */
+/* aggregate inode */
+#define AGGR_RESERVED_I	0	/* aggregate inode (reserved) */
+#define	AGGREGATE_I	1	/* aggregate inode map inode */
+#define	BMAP_I		2	/* aggregate block allocation map inode */
+#define	LOG_I		3	/* aggregate inline log inode */
+#define BADBLOCK_I	4	/* aggregate bad block inode */
+#define	FILESYSTEM_I	16	/* 1st/only fileset inode in ait:
+				 * fileset inode map inode
+				 */
+
+/* per fileset inode */
+#define FILESET_RSVD_I	0	/* fileset inode (reserved) */
+#define FILESET_EXT_I	1	/* fileset inode extension */
+#define	ROOT_I		2	/* fileset root inode */
+#define ACL_I		3	/* fileset ACL inode */
+
+#define FILESET_OBJECT_I 4	/* the first fileset inode available for a file
+				 * or directory or link...
+				 */
+#define FIRST_FILESET_INO 16	/* the first aggregate inode which describes
+				 * an inode.  (To fsck this is also the first
+				 * inode in part 2 of the agg inode table.)
+				 */
+
+/*
+ *	directory configuration
+ */
+#define JFS_NAME_MAX	255
+#define JFS_PATH_MAX	BPSIZE
+
+
+/*
+ *	file system state (superblock state)
+ */
+#define FM_CLEAN 0x00000000	/* file system is unmounted and clean */
+#define FM_MOUNT 0x00000001	/* file system is mounted cleanly */
+#define FM_DIRTY 0x00000002	/* file system was not unmounted and clean 
+				 * when mounted or 
+				 * commit failure occurred while being mounted:
+				 * fsck() must be run to repair 
+				 */
+#define	FM_LOGREDO 0x00000004	/* log based recovery (logredo()) failed:
+				 * fsck() must be run to repair 
+				 */
+#define	FM_EXTENDFS 0x00000008	/* file system extendfs() in progress */
+
+#endif				/* _H_JFS_FILSYS */
diff --git a/fs/jfs/jfs_imap.c b/fs/jfs/jfs_imap.c
new file mode 100644
index 00000000000000..fdb7ddcc690a70
--- /dev/null
+++ b/fs/jfs/jfs_imap.c
@@ -0,0 +1,3279 @@
+/*
+ *   Copyright (C) International Business Machines Corp., 2000-2003
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/*
+ *	jfs_imap.c: inode allocation map manager
+ *
+ * Serialization:
+ *   Each AG has a simple lock which is used to control the serialization of
+ *	the AG level lists.  This lock should be taken first whenever an AG
+ *	level list will be modified or accessed.
+ *
+ *   Each IAG is locked by obtaining the buffer for the IAG page.
+ *
+ *   There is also a inode lock for the inode map inode.  A read lock needs to
+ *	be taken whenever an IAG is read from the map or the global level
+ *	information is read.  A write lock needs to be taken whenever the global
+ *	level information is modified or an atomic operation needs to be used.
+ *
+ *	If more than one IAG is read at one time, the read lock may not
+ *	be given up until all of the IAG's are read.  Otherwise, a deadlock
+ *	may occur when trying to obtain the read lock while another thread
+ *	holding the read lock is waiting on the IAG already being held.
+ *
+ *   The control page of the inode map is read into memory by diMount().
+ *	Thereafter it should only be modified in memory and then it will be
+ *	written out when the filesystem is unmounted by diUnmount().
+ */
+
+#include <linux/fs.h>
+#include <linux/locks.h>
+#include "jfs_incore.h"
+#include "jfs_filsys.h"
+#include "jfs_dinode.h"
+#include "jfs_dmap.h"
+#include "jfs_imap.h"
+#include "jfs_metapage.h"
+#include "jfs_superblock.h"
+#include "jfs_debug.h"
+
+/*
+ * imap locks
+ */
+/* iag free list lock */
+#define IAGFREE_LOCK_INIT(imap)		init_MUTEX(&imap->im_freelock)
+#define IAGFREE_LOCK(imap)		down(&imap->im_freelock)
+#define IAGFREE_UNLOCK(imap)		up(&imap->im_freelock)
+
+/* per ag iag list locks */
+#define AG_LOCK_INIT(imap,index)	init_MUTEX(&(imap->im_aglock[index]))
+#define AG_LOCK(imap,agno)		down(&imap->im_aglock[agno])
+#define AG_UNLOCK(imap,agno)		up(&imap->im_aglock[agno])
+
+/*
+ * external references
+ */
+extern struct address_space_operations jfs_aops;
+
+/*
+ * forward references
+ */
+static int diAllocAG(struct inomap *, int, boolean_t, struct inode *);
+static int diAllocAny(struct inomap *, int, boolean_t, struct inode *);
+static int diAllocBit(struct inomap *, struct iag *, int);
+static int diAllocExt(struct inomap *, int, struct inode *);
+static int diAllocIno(struct inomap *, int, struct inode *);
+static int diFindFree(u32, int);
+static int diNewExt(struct inomap *, struct iag *, int);
+static int diNewIAG(struct inomap *, int *, int, struct metapage **);
+static void duplicateIXtree(struct super_block *, s64, int, s64 *);
+
+static int diIAGRead(struct inomap * imap, int, struct metapage **);
+static int copy_from_dinode(struct dinode *, struct inode *);
+static void copy_to_dinode(struct dinode *, struct inode *);
+
+/*
+ *	debug code for double-checking inode map
+ */
+/* #define	_JFS_DEBUG_IMAP	1 */
+
+#ifdef	_JFS_DEBUG_IMAP
+#define DBG_DIINIT(imap)	DBGdiInit(imap)
+#define DBG_DIALLOC(imap, ino)	DBGdiAlloc(imap, ino)
+#define DBG_DIFREE(imap, ino)	DBGdiFree(imap, ino)
+
+static void *DBGdiInit(struct inomap * imap);
+static void DBGdiAlloc(struct inomap * imap, ino_t ino);
+static void DBGdiFree(struct inomap * imap, ino_t ino);
+#else
+#define DBG_DIINIT(imap)
+#define DBG_DIALLOC(imap, ino)
+#define DBG_DIFREE(imap, ino)
+#endif				/* _JFS_DEBUG_IMAP */
+
+/*
+ * NAME:        diMount()
+ *
+ * FUNCTION:    initialize the incore inode map control structures for
+ *		a fileset or aggregate init time.
+ *
+ *              the inode map's control structure (dinomap) is 
+ *              brought in from disk and placed in virtual memory.
+ *
+ * PARAMETERS:
+ *      ipimap  - pointer to inode map inode for the aggregate or fileset.
+ *
+ * RETURN VALUES:
+ *      0       - success
+ *      -ENOMEM  - insufficient free virtual memory.
+ *      -EIO  	- i/o error.
+ */
+int diMount(struct inode *ipimap)
+{
+	struct inomap *imap;
+	struct metapage *mp;
+	int index;
+	struct dinomap *dinom_le;
+
+	/*
+	 * allocate/initialize the in-memory inode map control structure
+	 */
+	/* allocate the in-memory inode map control structure. */
+	imap = (struct inomap *) kmalloc(sizeof(struct inomap), GFP_KERNEL);
+	if (imap == NULL) {
+		jfs_err("diMount: kmalloc returned NULL!");
+		return -ENOMEM;
+	}
+
+	/* read the on-disk inode map control structure. */
+
+	mp = read_metapage(ipimap,
+			   IMAPBLKNO << JFS_SBI(ipimap->i_sb)->l2nbperpage,
+			   PSIZE, 0);
+	if (mp == NULL) {
+		kfree(imap);
+		return -EIO;
+	}
+
+	/* copy the on-disk version to the in-memory version. */
+	dinom_le = (struct dinomap *) mp->data;
+	imap->im_freeiag = le32_to_cpu(dinom_le->in_freeiag);
+	imap->im_nextiag = le32_to_cpu(dinom_le->in_nextiag);
+	atomic_set(&imap->im_numinos, le32_to_cpu(dinom_le->in_numinos));
+	atomic_set(&imap->im_numfree, le32_to_cpu(dinom_le->in_numfree));
+	imap->im_nbperiext = le32_to_cpu(dinom_le->in_nbperiext);
+	imap->im_l2nbperiext = le32_to_cpu(dinom_le->in_l2nbperiext);
+	for (index = 0; index < MAXAG; index++) {
+		imap->im_agctl[index].inofree =
+		    le32_to_cpu(dinom_le->in_agctl[index].inofree);
+		imap->im_agctl[index].extfree =
+		    le32_to_cpu(dinom_le->in_agctl[index].extfree);
+		imap->im_agctl[index].numinos =
+		    le32_to_cpu(dinom_le->in_agctl[index].numinos);
+		imap->im_agctl[index].numfree =
+		    le32_to_cpu(dinom_le->in_agctl[index].numfree);
+	}
+
+	/* release the buffer. */
+	release_metapage(mp);
+
+	/*
+	 * allocate/initialize inode allocation map locks
+	 */
+	/* allocate and init iag free list lock */
+	IAGFREE_LOCK_INIT(imap);
+
+	/* allocate and init ag list locks */
+	for (index = 0; index < MAXAG; index++) {
+		AG_LOCK_INIT(imap, index);
+	}
+
+	/* bind the inode map inode and inode map control structure
+	 * to each other.
+	 */
+	imap->im_ipimap = ipimap;
+	JFS_IP(ipimap)->i_imap = imap;
+
+//      DBG_DIINIT(imap);
+
+	return (0);
+}
+
+
+/*
+ * NAME:        diUnmount()
+ *
+ * FUNCTION:    write to disk the incore inode map control structures for
+ *		a fileset or aggregate at unmount time.
+ *
+ * PARAMETERS:
+ *      ipimap  - pointer to inode map inode for the aggregate or fileset.
+ *
+ * RETURN VALUES:
+ *      0       - success
+ *      -ENOMEM  - insufficient free virtual memory.
+ *      -EIO  	- i/o error.
+ */
+int diUnmount(struct inode *ipimap, int mounterror)
+{
+	struct inomap *imap = JFS_IP(ipimap)->i_imap;
+
+	/*
+	 * update the on-disk inode map control structure
+	 */
+
+	if (!(mounterror || isReadOnly(ipimap)))
+		diSync(ipimap);
+
+	/*
+	 * Invalidate the page cache buffers
+	 */
+	truncate_inode_pages(ipimap->i_mapping, 0);
+
+	/*
+	 * free in-memory control structure
+	 */
+	kfree(imap);
+
+	return (0);
+}
+
+
+/*
+ *	diSync()
+ */
+int diSync(struct inode *ipimap)
+{
+	struct dinomap *dinom_le;
+	struct inomap *imp = JFS_IP(ipimap)->i_imap;
+	struct metapage *mp;
+	int index;
+
+	/*
+	 * write imap global conrol page
+	 */
+	/* read the on-disk inode map control structure */
+	mp = get_metapage(ipimap,
+			  IMAPBLKNO << JFS_SBI(ipimap->i_sb)->l2nbperpage,
+			  PSIZE, 0);
+	if (mp == NULL) {
+		jfs_err("diSync: get_metapage failed!");
+		return -EIO;
+	}
+
+	/* copy the in-memory version to the on-disk version */
+	dinom_le = (struct dinomap *) mp->data;
+	dinom_le->in_freeiag = cpu_to_le32(imp->im_freeiag);
+	dinom_le->in_nextiag = cpu_to_le32(imp->im_nextiag);
+	dinom_le->in_numinos = cpu_to_le32(atomic_read(&imp->im_numinos));
+	dinom_le->in_numfree = cpu_to_le32(atomic_read(&imp->im_numfree));
+	dinom_le->in_nbperiext = cpu_to_le32(imp->im_nbperiext);
+	dinom_le->in_l2nbperiext = cpu_to_le32(imp->im_l2nbperiext);
+	for (index = 0; index < MAXAG; index++) {
+		dinom_le->in_agctl[index].inofree =
+		    cpu_to_le32(imp->im_agctl[index].inofree);
+		dinom_le->in_agctl[index].extfree =
+		    cpu_to_le32(imp->im_agctl[index].extfree);
+		dinom_le->in_agctl[index].numinos =
+		    cpu_to_le32(imp->im_agctl[index].numinos);
+		dinom_le->in_agctl[index].numfree =
+		    cpu_to_le32(imp->im_agctl[index].numfree);
+	}
+
+	/* write out the control structure */
+	write_metapage(mp);
+
+	/*
+	 * write out dirty pages of imap
+	 */
+	fsync_inode_data_buffers(ipimap);
+
+	diWriteSpecial(ipimap, 0);
+
+	return (0);
+}
+
+
+/*
+ * NAME:        diRead()
+ *
+ * FUNCTION:    initialize an incore inode from disk.
+ *
+ *		on entry, the specifed incore inode should itself
+ *		specify the disk inode number corresponding to the
+ *		incore inode (i.e. i_number should be initialized).
+ *		
+ *		this routine handles incore inode initialization for
+ *		both "special" and "regular" inodes.  special inodes
+ *		are those required early in the mount process and
+ *	        require special handling since much of the file system
+ *		is not yet initialized.  these "special" inodes are
+ *		identified by a NULL inode map inode pointer and are
+ *		actually initialized by a call to diReadSpecial().
+ *		
+ *		for regular inodes, the iag describing the disk inode
+ *		is read from disk to determine the inode extent address
+ *		for the disk inode.  with the inode extent address in
+ *		hand, the page of the extent that contains the disk
+ *		inode is read and the disk inode is copied to the
+ *		incore inode.
+ *
+ * PARAMETERS:
+ *      ip  -  pointer to incore inode to be initialized from disk.
+ *
+ * RETURN VALUES:
+ *      0       - success
+ *      -EIO  	- i/o error.
+ *      -ENOMEM	- insufficient memory
+ *      
+ */
+int diRead(struct inode *ip)
+{
+	struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb);
+	int iagno, ino, extno, rc;
+	struct inode *ipimap;
+	struct dinode *dp;
+	struct iag *iagp;
+	struct metapage *mp;
+	s64 blkno, agstart;
+	struct inomap *imap;
+	int block_offset;
+	int inodes_left;
+	uint pageno;
+	int rel_inode;
+
+	jfs_info("diRead: ino = %ld", ip->i_ino);
+
+	ipimap = sbi->ipimap;
+	JFS_IP(ip)->ipimap = ipimap;
+
+	/* determine the iag number for this inode (number) */
+	iagno = INOTOIAG(ip->i_ino);
+
+	/* read the iag */
+	imap = JFS_IP(ipimap)->i_imap;
+	IREAD_LOCK(ipimap);
+	rc = diIAGRead(imap, iagno, &mp);
+	IREAD_UNLOCK(ipimap);
+	if (rc) {
+		jfs_err("diRead: diIAGRead returned %d", rc);
+		return (rc);
+	}
+
+	iagp = (struct iag *) mp->data;
+
+	/* determine inode extent that holds the disk inode */
+	ino = ip->i_ino & (INOSPERIAG - 1);
+	extno = ino >> L2INOSPEREXT;
+
+	if ((lengthPXD(&iagp->inoext[extno]) != imap->im_nbperiext) ||
+	    (addressPXD(&iagp->inoext[extno]) == 0)) {
+		release_metapage(mp);
+		return -ESTALE;
+	}
+
+	/* get disk block number of the page within the inode extent
+	 * that holds the disk inode.
+	 */
+	blkno = INOPBLK(&iagp->inoext[extno], ino, sbi->l2nbperpage);
+
+	/* get the ag for the iag */
+	agstart = le64_to_cpu(iagp->agstart);
+
+	release_metapage(mp);
+
+	rel_inode = (ino & (INOSPERPAGE - 1));
+	pageno = blkno >> sbi->l2nbperpage;
+
+	if ((block_offset = ((u32) blkno & (sbi->nbperpage - 1)))) {
+		/*
+		 * OS/2 didn't always align inode extents on page boundaries
+		 */
+		inodes_left =
+		     (sbi->nbperpage - block_offset) << sbi->l2niperblk;
+
+		if (rel_inode < inodes_left)
+			rel_inode += block_offset << sbi->l2niperblk;
+		else {
+			pageno += 1;
+			rel_inode -= inodes_left;
+		}
+	}
+
+	/* read the page of disk inode */
+	mp = read_metapage(ipimap, pageno << sbi->l2nbperpage, PSIZE, 1);
+	if (mp == 0) {
+		jfs_err("diRead: read_metapage failed");
+		return -EIO;
+	}
+
+	/* locate the the disk inode requested */
+	dp = (struct dinode *) mp->data;
+	dp += rel_inode;
+
+	if (ip->i_ino != le32_to_cpu(dp->di_number)) {
+		jfs_error(ip->i_sb, "diRead: i_ino != di_number");
+		rc = -EIO;
+	} else if (le32_to_cpu(dp->di_nlink) == 0)
+		rc = -ESTALE;
+	else
+		/* copy the disk inode to the in-memory inode */
+		rc = copy_from_dinode(dp, ip);
+
+	release_metapage(mp);
+
+	/* set the ag for the inode */
+	JFS_IP(ip)->agno = BLKTOAG(agstart, sbi);
+	JFS_IP(ip)->active_ag = -1;
+
+	return (rc);
+}
+
+
+/*
+ * NAME:        diReadSpecial()
+ *
+ * FUNCTION:    initialize a 'special' inode from disk.
+ *
+ *		this routines handles aggregate level inodes.  The
+ *		inode cache cannot differentiate between the
+ *		aggregate inodes and the filesystem inodes, so we
+ *		handle these here.  We don't actually use the aggregate
+ *	        inode map, since these inodes are at a fixed location
+ *		and in some cases the aggregate inode map isn't initialized
+ *		yet.
+ *
+ * PARAMETERS:
+ *      sb - filesystem superblock
+ *	inum - aggregate inode number
+ *	secondary - 1 if secondary aggregate inode table
+ *
+ * RETURN VALUES:
+ *      new inode	- success
+ *      NULL		- i/o error.
+ */
+struct inode *diReadSpecial(struct super_block *sb, ino_t inum, int secondary)
+{
+	struct jfs_sb_info *sbi = JFS_SBI(sb);
+	uint address;
+	struct dinode *dp;
+	struct inode *ip;
+	struct metapage *mp;
+	int rc;
+
+	ip = new_inode(sb);
+	if (ip == NULL) {
+		jfs_err("diReadSpecial: new_inode returned NULL!");
+		return ip;
+	}
+
+	rc = alloc_jfs_inode(ip);
+	if (rc) {
+		make_bad_inode(ip);
+		iput(ip);
+		return NULL;
+	}
+
+	if (secondary) {
+		address = addressPXD(&sbi->ait2) >> sbi->l2nbperpage;
+		JFS_IP(ip)->ipimap = sbi->ipaimap2;
+	} else {
+		address = AITBL_OFF >> L2PSIZE;
+		JFS_IP(ip)->ipimap = sbi->ipaimap;
+	}
+
+	ASSERT(inum < INOSPEREXT);
+
+	ip->i_ino = inum;
+
+	address += inum >> 3;	/* 8 inodes per 4K page */
+
+	/* read the page of fixed disk inode (AIT) in raw mode */
+	mp = read_metapage(ip, address << sbi->l2nbperpage, PSIZE, 1);
+	if (mp == NULL) {
+		ip->i_nlink = 1;	/* Don't want iput() deleting it */
+		iput(ip);
+		return (NULL);
+	}
+
+	/* get the pointer to the disk inode of interest */
+	dp = (struct dinode *) (mp->data);
+	dp += inum % 8;		/* 8 inodes per 4K page */
+
+	/* copy on-disk inode to in-memory inode */
+	if ((copy_from_dinode(dp, ip)) != 0) {
+		/* handle bad return by returning NULL for ip */
+		ip->i_nlink = 1;	/* Don't want iput() deleting it */
+		iput(ip);
+		/* release the page */
+		release_metapage(mp);
+		return (NULL);
+
+	}
+
+	ip->i_mapping->a_ops = &jfs_aops;
+	ip->i_mapping->gfp_mask = GFP_NOFS;
+
+	if ((inum == FILESYSTEM_I) && (JFS_IP(ip)->ipimap == sbi->ipaimap)) {
+		sbi->gengen = le32_to_cpu(dp->di_gengen);
+		sbi->inostamp = le32_to_cpu(dp->di_inostamp);
+	}
+
+	/* release the page */
+	release_metapage(mp);
+
+	return (ip);
+}
+
+/*
+ * NAME:        diWriteSpecial()
+ *
+ * FUNCTION:    Write the special inode to disk
+ *
+ * PARAMETERS:
+ *      ip - special inode
+ *	secondary - 1 if secondary aggregate inode table
+ *
+ * RETURN VALUES: none
+ */
+
+void diWriteSpecial(struct inode *ip, int secondary)
+{
+	struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb);
+	uint address;
+	struct dinode *dp;
+	ino_t inum = ip->i_ino;
+	struct metapage *mp;
+
+	ip->i_state &= ~I_DIRTY;
+
+	if (secondary)
+		address = addressPXD(&sbi->ait2) >> sbi->l2nbperpage;
+	else
+		address = AITBL_OFF >> L2PSIZE;
+
+	ASSERT(inum < INOSPEREXT);
+
+	address += inum >> 3;	/* 8 inodes per 4K page */
+
+	/* read the page of fixed disk inode (AIT) in raw mode */
+	mp = read_metapage(ip, address << sbi->l2nbperpage, PSIZE, 1);
+	if (mp == NULL) {
+		jfs_err("diWriteSpecial: failed to read aggregate inode "
+			"extent!");
+		return;
+	}
+
+	/* get the pointer to the disk inode of interest */
+	dp = (struct dinode *) (mp->data);
+	dp += inum % 8;		/* 8 inodes per 4K page */
+
+	/* copy on-disk inode to in-memory inode */
+	copy_to_dinode(dp, ip);
+	memcpy(&dp->di_xtroot, &JFS_IP(ip)->i_xtroot, 288);
+
+	if (inum == FILESYSTEM_I)
+		dp->di_gengen = cpu_to_le32(sbi->gengen);
+
+	/* write the page */
+	write_metapage(mp);
+}
+
+/*
+ * NAME:        diFreeSpecial()
+ *
+ * FUNCTION:    Free allocated space for special inode
+ */
+void diFreeSpecial(struct inode *ip)
+{
+	if (ip == NULL) {
+		jfs_err("diFreeSpecial called with NULL ip!");
+		return;
+	}
+	fsync_inode_data_buffers(ip);
+	truncate_inode_pages(ip->i_mapping, 0);
+	iput(ip);
+}
+
+
+
+/*
+ * NAME:        diWrite()
+ *
+ * FUNCTION:    write the on-disk inode portion of the in-memory inode
+ *		to its corresponding on-disk inode.
+ *
+ *		on entry, the specifed incore inode should itself
+ *		specify the disk inode number corresponding to the
+ *		incore inode (i.e. i_number should be initialized).
+ *
+ *		the inode contains the inode extent address for the disk
+ *		inode.  with the inode extent address in hand, the
+ *		page of the extent that contains the disk inode is
+ *		read and the disk inode portion of the incore inode
+ *		is copied to the disk inode.
+ *		
+ * PARAMETERS:
+ *	tid -  transacation id
+ *      ip  -  pointer to incore inode to be written to the inode extent.
+ *
+ * RETURN VALUES:
+ *      0       - success
+ *      -EIO  	- i/o error.
+ */
+int diWrite(tid_t tid, struct inode *ip)
+{
+	struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb);
+	struct jfs_inode_info *jfs_ip = JFS_IP(ip);
+	int rc = 0;
+	s32 ino;
+	struct dinode *dp;
+	s64 blkno;
+	int block_offset;
+	int inodes_left;
+	struct metapage *mp;
+	uint pageno;
+	int rel_inode;
+	int dioffset;
+	struct inode *ipimap;
+	uint type;
+	lid_t lid;
+	struct tlock *ditlck, *tlck;
+	struct linelock *dilinelock, *ilinelock;
+	struct lv *lv;
+	int n;
+
+	ipimap = jfs_ip->ipimap;
+
+	ino = ip->i_ino & (INOSPERIAG - 1);
+
+	if (!addressPXD(&(jfs_ip->ixpxd)) ||
+	    (lengthPXD(&(jfs_ip->ixpxd)) !=
+	     JFS_IP(ipimap)->i_imap->im_nbperiext)) {
+		jfs_error(ip->i_sb, "diWrite: ixpxd invalid");
+		return -EIO;
+	}
+
+	/*
+	 * read the page of disk inode containing the specified inode:
+	 */
+	/* compute the block address of the page */
+	blkno = INOPBLK(&(jfs_ip->ixpxd), ino, sbi->l2nbperpage);
+
+	rel_inode = (ino & (INOSPERPAGE - 1));
+	pageno = blkno >> sbi->l2nbperpage;
+
+	if ((block_offset = ((u32) blkno & (sbi->nbperpage - 1)))) {
+		/*
+		 * OS/2 didn't always align inode extents on page boundaries
+		 */
+		inodes_left =
+		    (sbi->nbperpage - block_offset) << sbi->l2niperblk;
+
+		if (rel_inode < inodes_left)
+			rel_inode += block_offset << sbi->l2niperblk;
+		else {
+			pageno += 1;
+			rel_inode -= inodes_left;
+		}
+	}
+	/* read the page of disk inode */
+      retry:
+	mp = read_metapage(ipimap, pageno << sbi->l2nbperpage, PSIZE, 1);
+	if (mp == 0)
+		return -EIO;
+
+	/* get the pointer to the disk inode */
+	dp = (struct dinode *) mp->data;
+	dp += rel_inode;
+
+	dioffset = (ino & (INOSPERPAGE - 1)) << L2DISIZE;
+
+	/*
+	 * acquire transaction lock on the on-disk inode;
+	 * N.B. tlock is acquired on ipimap not ip;
+	 */
+	if ((ditlck =
+	     txLock(tid, ipimap, mp, tlckINODE | tlckENTRY)) == NULL)
+		goto retry;
+	dilinelock = (struct linelock *) & ditlck->lock;
+
+	/*
+	 * copy btree root from in-memory inode to on-disk inode
+	 *
+	 * (tlock is taken from inline B+-tree root in in-memory
+	 * inode when the B+-tree root is updated, which is pointed 
+	 * by jfs_ip->blid as well as being on tx tlock list)
+	 *
+	 * further processing of btree root is based on the copy 
+	 * in in-memory inode, where txLog() will log from, and, 
+	 * for xtree root, txUpdateMap() will update map and reset
+	 * XAD_NEW bit;
+	 */
+
+	if (S_ISDIR(ip->i_mode) && (lid = jfs_ip->xtlid)) {
+		/*
+		 * This is the special xtree inside the directory for storing
+		 * the directory table
+		 */
+		xtpage_t *p, *xp;
+		xad_t *xad;
+
+		jfs_ip->xtlid = 0;
+		tlck = lid_to_tlock(lid);
+		assert(tlck->type & tlckXTREE);
+		tlck->type |= tlckBTROOT;
+		tlck->mp = mp;
+		ilinelock = (struct linelock *) & tlck->lock;
+
+		/*
+		 * copy xtree root from inode to dinode:
+		 */
+		p = &jfs_ip->i_xtroot;
+		xp = (xtpage_t *) &dp->di_dirtable;
+		lv = ilinelock->lv;
+		for (n = 0; n < ilinelock->index; n++, lv++) {
+			memcpy(&xp->xad[lv->offset], &p->xad[lv->offset],
+			       lv->length << L2XTSLOTSIZE);
+		}
+
+		/* reset on-disk (metadata page) xtree XAD_NEW bit */
+		xad = &xp->xad[XTENTRYSTART];
+		for (n = XTENTRYSTART;
+		     n < le16_to_cpu(xp->header.nextindex); n++, xad++)
+			if (xad->flag & (XAD_NEW | XAD_EXTENDED))
+				xad->flag &= ~(XAD_NEW | XAD_EXTENDED);
+	}
+
+	if ((lid = jfs_ip->blid) == 0)
+		goto inlineData;
+	jfs_ip->blid = 0;
+
+	tlck = lid_to_tlock(lid);
+	type = tlck->type;
+	tlck->type |= tlckBTROOT;
+	tlck->mp = mp;
+	ilinelock = (struct linelock *) & tlck->lock;
+
+	/*
+	 *      regular file: 16 byte (XAD slot) granularity
+	 */
+	if (type & tlckXTREE) {
+		xtpage_t *p, *xp;
+		xad_t *xad;
+
+		/*
+		 * copy xtree root from inode to dinode:
+		 */
+		p = &jfs_ip->i_xtroot;
+		xp = &dp->di_xtroot;
+		lv = ilinelock->lv;
+		for (n = 0; n < ilinelock->index; n++, lv++) {
+			memcpy(&xp->xad[lv->offset], &p->xad[lv->offset],
+			       lv->length << L2XTSLOTSIZE);
+		}
+
+		/* reset on-disk (metadata page) xtree XAD_NEW bit */
+		xad = &xp->xad[XTENTRYSTART];
+		for (n = XTENTRYSTART;
+		     n < le16_to_cpu(xp->header.nextindex); n++, xad++)
+			if (xad->flag & (XAD_NEW | XAD_EXTENDED))
+				xad->flag &= ~(XAD_NEW | XAD_EXTENDED);
+	}
+	/*
+	 *      directory: 32 byte (directory entry slot) granularity
+	 */
+	else if (type & tlckDTREE) {
+		dtpage_t *p, *xp;
+
+		/*
+		 * copy dtree root from inode to dinode:
+		 */
+		p = (dtpage_t *) &jfs_ip->i_dtroot;
+		xp = (dtpage_t *) & dp->di_dtroot;
+		lv = ilinelock->lv;
+		for (n = 0; n < ilinelock->index; n++, lv++) {
+			memcpy(&xp->slot[lv->offset], &p->slot[lv->offset],
+			       lv->length << L2DTSLOTSIZE);
+		}
+	} else {
+		jfs_err("diWrite: UFO tlock");
+	}
+
+      inlineData:
+	/*
+	 * copy inline symlink from in-memory inode to on-disk inode
+	 */
+	if (S_ISLNK(ip->i_mode) && ip->i_size < IDATASIZE) {
+		lv = & dilinelock->lv[dilinelock->index];
+		lv->offset = (dioffset + 2 * 128) >> L2INODESLOTSIZE;
+		lv->length = 2;
+		memcpy(&dp->di_fastsymlink, jfs_ip->i_inline, IDATASIZE);
+		dilinelock->index++;
+	}
+	/*
+	 * copy inline data from in-memory inode to on-disk inode:
+	 * 128 byte slot granularity
+	 */
+	if (test_cflag(COMMIT_Inlineea, ip)) {
+		lv = & dilinelock->lv[dilinelock->index];
+		lv->offset = (dioffset + 3 * 128) >> L2INODESLOTSIZE;
+		lv->length = 1;
+		memcpy(&dp->di_inlineea, jfs_ip->i_inline_ea, INODESLOTSIZE);
+		dilinelock->index++;
+
+		clear_cflag(COMMIT_Inlineea, ip);
+	}
+
+	/*
+	 *      lock/copy inode base: 128 byte slot granularity
+	 */
+// baseDinode:
+	lv = & dilinelock->lv[dilinelock->index];
+	lv->offset = dioffset >> L2INODESLOTSIZE;
+	copy_to_dinode(dp, ip);
+	if (test_and_clear_cflag(COMMIT_Dirtable, ip)) {
+		lv->length = 2;
+		memcpy(&dp->di_dirtable, &jfs_ip->i_dirtable, 96);
+	} else
+		lv->length = 1;
+	dilinelock->index++;
+
+#ifdef _JFS_FASTDASD
+	/*
+	 * We aren't logging changes to the DASD used in directory inodes,
+	 * but we need to write them to disk.  If we don't unmount cleanly,
+	 * mount will recalculate the DASD used.
+	 */
+	if (S_ISDIR(ip->i_mode)
+	    && (ip->i_ipmnt->i_mntflag & JFS_DASD_ENABLED))
+		bcopy(&ip->i_DASD, &dp->di_DASD, sizeof(struct dasd));
+#endif				/*  _JFS_FASTDASD */
+
+	/* release the buffer holding the updated on-disk inode. 
+	 * the buffer will be later written by commit processing.
+	 */
+	write_metapage(mp);
+
+	return (rc);
+}
+
+
+/*
+ * NAME:        diFree(ip)
+ *
+ * FUNCTION:    free a specified inode from the inode working map
+ *		for a fileset or aggregate.
+ *
+ *		if the inode to be freed represents the first (only)
+ *		free inode within the iag, the iag will be placed on
+ *		the ag free inode list.
+ *	
+ *		freeing the inode will cause the inode extent to be
+ *		freed if the inode is the only allocated inode within
+ *		the extent.  in this case all the disk resource backing
+ *		up the inode extent will be freed. in addition, the iag
+ *		will be placed on the ag extent free list if the extent
+ *		is the first free extent in the iag.  if freeing the
+ *		extent also means that no free inodes will exist for
+ *		the iag, the iag will also be removed from the ag free
+ *		inode list.
+ *
+ *		the iag describing the inode will be freed if the extent
+ *		is to be freed and it is the only backed extent within
+ *		the iag.  in this case, the iag will be removed from the
+ *		ag free extent list and ag free inode list and placed on
+ *		the inode map's free iag list.
+ *
+ *		a careful update approach is used to provide consistency
+ *		in the face of updates to multiple buffers.  under this
+ *		approach, all required buffers are obtained before making
+ *		any updates and are held until all updates are complete.
+ *
+ * PARAMETERS:
+ *      ip  	- inode to be freed.
+ *
+ * RETURN VALUES:
+ *      0       - success
+ *      -EIO  	- i/o error.
+ */
+int diFree(struct inode *ip)
+{
+	int rc;
+	ino_t inum = ip->i_ino;
+	struct iag *iagp, *aiagp, *biagp, *ciagp, *diagp;
+	struct metapage *mp, *amp, *bmp, *cmp, *dmp;
+	int iagno, ino, extno, bitno, sword, agno;
+	int back, fwd;
+	u32 bitmap, mask;
+	struct inode *ipimap = JFS_SBI(ip->i_sb)->ipimap;
+	struct inomap *imap = JFS_IP(ipimap)->i_imap;
+	pxd_t freepxd;
+	tid_t tid;
+	struct inode *iplist[3];
+	struct tlock *tlck;
+	struct pxd_lock *pxdlock;
+
+	/*
+	 * This is just to suppress compiler warnings.  The same logic that
+	 * references these variables is used to initialize them.
+	 */
+	aiagp = biagp = ciagp = diagp = NULL;
+
+	/* get the iag number containing the inode.
+	 */
+	iagno = INOTOIAG(inum);
+
+	/* make sure that the iag is contained within 
+	 * the map.
+	 */
+	if (iagno >= imap->im_nextiag) {
+		dump_mem("imap", imap, 32);
+		jfs_error(ip->i_sb,
+			  "diFree: inum = %d, iagno = %d, nextiag = %d",
+			  (uint) inum, iagno, imap->im_nextiag);
+		return -EIO;
+	}
+
+	/* get the allocation group for this ino.
+	 */
+	agno = JFS_IP(ip)->agno;
+
+	/* Lock the AG specific inode map information
+	 */
+	AG_LOCK(imap, agno);
+
+	/* Obtain read lock in imap inode.  Don't release it until we have
+	 * read all of the IAG's that we are going to.
+	 */
+	IREAD_LOCK(ipimap);
+
+	/* read the iag.
+	 */
+	if ((rc = diIAGRead(imap, iagno, &mp))) {
+		IREAD_UNLOCK(ipimap);
+		AG_UNLOCK(imap, agno);
+		return (rc);
+	}
+	iagp = (struct iag *) mp->data;
+
+	/* get the inode number and extent number of the inode within
+	 * the iag and the inode number within the extent.
+	 */
+	ino = inum & (INOSPERIAG - 1);
+	extno = ino >> L2INOSPEREXT;
+	bitno = ino & (INOSPEREXT - 1);
+	mask = HIGHORDER >> bitno;
+
+	if (!(le32_to_cpu(iagp->wmap[extno]) & mask)) {
+		jfs_error(ip->i_sb,
+			  "diFree: wmap shows inode already free");
+	}
+
+	if (!addressPXD(&iagp->inoext[extno])) {
+		release_metapage(mp);
+		IREAD_UNLOCK(ipimap);
+		AG_UNLOCK(imap, agno);
+		jfs_error(ip->i_sb, "diFree: invalid inoext");
+		return -EIO;
+	}
+
+	/* compute the bitmap for the extent reflecting the freed inode.
+	 */
+	bitmap = le32_to_cpu(iagp->wmap[extno]) & ~mask;
+
+	if (imap->im_agctl[agno].numfree > imap->im_agctl[agno].numinos) {
+		release_metapage(mp);
+		IREAD_UNLOCK(ipimap);
+		AG_UNLOCK(imap, agno);
+		jfs_error(ip->i_sb, "diFree: numfree > numinos");
+		return -EIO;
+	}
+	/*
+	 *      inode extent still has some inodes or below low water mark:
+	 *      keep the inode extent;
+	 */
+	if (bitmap ||
+	    imap->im_agctl[agno].numfree < 96 ||
+	    (imap->im_agctl[agno].numfree < 288 &&
+	     (((imap->im_agctl[agno].numfree * 100) /
+	       imap->im_agctl[agno].numinos) <= 25))) {
+		/* if the iag currently has no free inodes (i.e.,
+		 * the inode being freed is the first free inode of iag),
+		 * insert the iag at head of the inode free list for the ag.
+		 */
+		if (iagp->nfreeinos == 0) {
+			/* check if there are any iags on the ag inode
+			 * free list.  if so, read the first one so that
+			 * we can link the current iag onto the list at
+			 * the head.
+			 */
+			if ((fwd = imap->im_agctl[agno].inofree) >= 0) {
+				/* read the iag that currently is the head
+				 * of the list.
+				 */
+				if ((rc = diIAGRead(imap, fwd, &amp))) {
+					IREAD_UNLOCK(ipimap);
+					AG_UNLOCK(imap, agno);
+					release_metapage(mp);
+					return (rc);
+				}
+				aiagp = (struct iag *) amp->data;
+
+				/* make current head point back to the iag.
+				 */
+				aiagp->inofreeback = cpu_to_le32(iagno);
+
+				write_metapage(amp);
+			}
+
+			/* iag points forward to current head and iag
+			 * becomes the new head of the list.
+			 */
+			iagp->inofreefwd =
+			    cpu_to_le32(imap->im_agctl[agno].inofree);
+			iagp->inofreeback = -1;
+			imap->im_agctl[agno].inofree = iagno;
+		}
+		IREAD_UNLOCK(ipimap);
+
+		/* update the free inode summary map for the extent if
+		 * freeing the inode means the extent will now have free
+		 * inodes (i.e., the inode being freed is the first free 
+		 * inode of extent),
+		 */
+		if (iagp->wmap[extno] == ONES) {
+			sword = extno >> L2EXTSPERSUM;
+			bitno = extno & (EXTSPERSUM - 1);
+			iagp->inosmap[sword] &=
+			    cpu_to_le32(~(HIGHORDER >> bitno));
+		}
+
+		/* update the bitmap.
+		 */
+		iagp->wmap[extno] = cpu_to_le32(bitmap);
+		DBG_DIFREE(imap, inum);
+
+		/* update the free inode counts at the iag, ag and
+		 * map level.
+		 */
+		iagp->nfreeinos =
+		    cpu_to_le32(le32_to_cpu(iagp->nfreeinos) + 1);
+		imap->im_agctl[agno].numfree += 1;
+		atomic_inc(&imap->im_numfree);
+
+		/* release the AG inode map lock
+		 */
+		AG_UNLOCK(imap, agno);
+
+		/* write the iag */
+		write_metapage(mp);
+
+		return (0);
+	}
+
+
+	/*
+	 *      inode extent has become free and above low water mark:
+	 *      free the inode extent;
+	 */
+
+	/*
+	 *      prepare to update iag list(s) (careful update step 1)
+	 */
+	amp = bmp = cmp = dmp = NULL;
+	fwd = back = -1;
+
+	/* check if the iag currently has no free extents.  if so,
+	 * it will be placed on the head of the ag extent free list.
+	 */
+	if (iagp->nfreeexts == 0) {
+		/* check if the ag extent free list has any iags.
+		 * if so, read the iag at the head of the list now.
+		 * this (head) iag will be updated later to reflect
+		 * the addition of the current iag at the head of
+		 * the list.
+		 */
+		if ((fwd = imap->im_agctl[agno].extfree) >= 0) {
+			if ((rc = diIAGRead(imap, fwd, &amp)))
+				goto error_out;
+			aiagp = (struct iag *) amp->data;
+		}
+	} else {
+		/* iag has free extents. check if the addition of a free
+		 * extent will cause all extents to be free within this
+		 * iag.  if so, the iag will be removed from the ag extent
+		 * free list and placed on the inode map's free iag list.
+		 */
+		if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG - 1)) {
+			/* in preparation for removing the iag from the
+			 * ag extent free list, read the iags preceeding
+			 * and following the iag on the ag extent free
+			 * list.
+			 */
+			if ((fwd = le32_to_cpu(iagp->extfreefwd)) >= 0) {
+				if ((rc = diIAGRead(imap, fwd, &amp)))
+					goto error_out;
+				aiagp = (struct iag *) amp->data;
+			}
+
+			if ((back = le32_to_cpu(iagp->extfreeback)) >= 0) {
+				if ((rc = diIAGRead(imap, back, &bmp)))
+					goto error_out;
+				biagp = (struct iag *) bmp->data;
+			}
+		}
+	}
+
+	/* remove the iag from the ag inode free list if freeing
+	 * this extent cause the iag to have no free inodes.
+	 */
+	if (iagp->nfreeinos == cpu_to_le32(INOSPEREXT - 1)) {
+		int inofreeback = le32_to_cpu(iagp->inofreeback);
+		int inofreefwd = le32_to_cpu(iagp->inofreefwd);
+
+		/* in preparation for removing the iag from the
+		 * ag inode free list, read the iags preceeding
+		 * and following the iag on the ag inode free
+		 * list.  before reading these iags, we must make
+		 * sure that we already don't have them in hand
+		 * from up above, since re-reading an iag (buffer)
+		 * we are currently holding would cause a deadlock.
+		 */
+		if (inofreefwd >= 0) {
+
+			if (inofreefwd == fwd)
+				ciagp = (struct iag *) amp->data;
+			else if (inofreefwd == back)
+				ciagp = (struct iag *) bmp->data;
+			else {
+				if ((rc =
+				     diIAGRead(imap, inofreefwd, &cmp)))
+					goto error_out;
+				ciagp = (struct iag *) cmp->data;
+			}
+			assert(ciagp != NULL);
+		}
+
+		if (inofreeback >= 0) {
+			if (inofreeback == fwd)
+				diagp = (struct iag *) amp->data;
+			else if (inofreeback == back)
+				diagp = (struct iag *) bmp->data;
+			else {
+				if ((rc =
+				     diIAGRead(imap, inofreeback, &dmp)))
+					goto error_out;
+				diagp = (struct iag *) dmp->data;
+			}
+			assert(diagp != NULL);
+		}
+	}
+
+	IREAD_UNLOCK(ipimap);
+
+	/*
+	 * invalidate any page of the inode extent freed from buffer cache;
+	 */
+	freepxd = iagp->inoext[extno];
+	invalidate_pxd_metapages(ip, freepxd);
+
+	/*
+	 *      update iag list(s) (careful update step 2)
+	 */
+	/* add the iag to the ag extent free list if this is the
+	 * first free extent for the iag.
+	 */
+	if (iagp->nfreeexts == 0) {
+		if (fwd >= 0)
+			aiagp->extfreeback = cpu_to_le32(iagno);
+
+		iagp->extfreefwd =
+		    cpu_to_le32(imap->im_agctl[agno].extfree);
+		iagp->extfreeback = -1;
+		imap->im_agctl[agno].extfree = iagno;
+	} else {
+		/* remove the iag from the ag extent list if all extents
+		 * are now free and place it on the inode map iag free list.
+		 */
+		if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG - 1)) {
+			if (fwd >= 0)
+				aiagp->extfreeback = iagp->extfreeback;
+
+			if (back >= 0)
+				biagp->extfreefwd = iagp->extfreefwd;
+			else
+				imap->im_agctl[agno].extfree =
+				    le32_to_cpu(iagp->extfreefwd);
+
+			iagp->extfreefwd = iagp->extfreeback = -1;
+
+			IAGFREE_LOCK(imap);
+			iagp->iagfree = cpu_to_le32(imap->im_freeiag);
+			imap->im_freeiag = iagno;
+			IAGFREE_UNLOCK(imap);
+		}
+	}
+
+	/* remove the iag from the ag inode free list if freeing
+	 * this extent causes the iag to have no free inodes.
+	 */
+	if (iagp->nfreeinos == cpu_to_le32(INOSPEREXT - 1)) {
+		if ((int) le32_to_cpu(iagp->inofreefwd) >= 0)
+			ciagp->inofreeback = iagp->inofreeback;
+
+		if ((int) le32_to_cpu(iagp->inofreeback) >= 0)
+			diagp->inofreefwd = iagp->inofreefwd;
+		else
+			imap->im_agctl[agno].inofree =
+			    le32_to_cpu(iagp->inofreefwd);
+
+		iagp->inofreefwd = iagp->inofreeback = -1;
+	}
+
+	/* update the inode extent address and working map 
+	 * to reflect the free extent.
+	 * the permanent map should have been updated already 
+	 * for the inode being freed.
+	 */
+	if (iagp->pmap[extno] != 0) {
+		jfs_error(ip->i_sb, "diFree: the pmap does not show inode free");
+	}
+	iagp->wmap[extno] = 0;
+	DBG_DIFREE(imap, inum);
+	PXDlength(&iagp->inoext[extno], 0);
+	PXDaddress(&iagp->inoext[extno], 0);
+
+	/* update the free extent and free inode summary maps
+	 * to reflect the freed extent.
+	 * the inode summary map is marked to indicate no inodes 
+	 * available for the freed extent.
+	 */
+	sword = extno >> L2EXTSPERSUM;
+	bitno = extno & (EXTSPERSUM - 1);
+	mask = HIGHORDER >> bitno;
+	iagp->inosmap[sword] |= cpu_to_le32(mask);
+	iagp->extsmap[sword] &= cpu_to_le32(~mask);
+
+	/* update the number of free inodes and number of free extents
+	 * for the iag.
+	 */
+	iagp->nfreeinos = cpu_to_le32(le32_to_cpu(iagp->nfreeinos) -
+				      (INOSPEREXT - 1));
+	iagp->nfreeexts = cpu_to_le32(le32_to_cpu(iagp->nfreeexts) + 1);
+
+	/* update the number of free inodes and backed inodes
+	 * at the ag and inode map level.
+	 */
+	imap->im_agctl[agno].numfree -= (INOSPEREXT - 1);
+	imap->im_agctl[agno].numinos -= INOSPEREXT;
+	atomic_sub(INOSPEREXT - 1, &imap->im_numfree);
+	atomic_sub(INOSPEREXT, &imap->im_numinos);
+
+	if (amp)
+		write_metapage(amp);
+	if (bmp)
+		write_metapage(bmp);
+	if (cmp)
+		write_metapage(cmp);
+	if (dmp)
+		write_metapage(dmp);
+
+	/*
+	 * start transaction to update block allocation map
+	 * for the inode extent freed;
+	 *
+	 * N.B. AG_LOCK is released and iag will be released below, and 
+	 * other thread may allocate inode from/reusing the ixad freed
+	 * BUT with new/different backing inode extent from the extent 
+	 * to be freed by the transaction;  
+	 */
+	tid = txBegin(ipimap->i_sb, COMMIT_FORCE);
+	down(&JFS_IP(ipimap)->commit_sem);
+
+	/* acquire tlock of the iag page of the freed ixad 
+	 * to force the page NOHOMEOK (even though no data is
+	 * logged from the iag page) until NOREDOPAGE|FREEXTENT log 
+	 * for the free of the extent is committed;
+	 * write FREEXTENT|NOREDOPAGE log record
+	 * N.B. linelock is overlaid as freed extent descriptor;
+	 */
+	tlck = txLock(tid, ipimap, mp, tlckINODE | tlckFREE);
+	pxdlock = (struct pxd_lock *) & tlck->lock;
+	pxdlock->flag = mlckFREEPXD;
+	pxdlock->pxd = freepxd;
+	pxdlock->index = 1;
+
+	write_metapage(mp);
+
+	iplist[0] = ipimap;
+
+	/*
+	 * logredo needs the IAG number and IAG extent index in order
+	 * to ensure that the IMap is consistent.  The least disruptive
+	 * way to pass these values through  to the transaction manager
+	 * is in the iplist array.  
+	 * 
+	 * It's not pretty, but it works.
+	 */
+	iplist[1] = (struct inode *) (size_t)iagno;
+	iplist[2] = (struct inode *) (size_t)extno;
+
+	rc = txCommit(tid, 1, &iplist[0], COMMIT_FORCE);
+
+	txEnd(tid);
+	up(&JFS_IP(ipimap)->commit_sem);
+
+	/* unlock the AG inode map information */
+	AG_UNLOCK(imap, agno);
+
+	return (0);
+
+      error_out:
+	IREAD_UNLOCK(ipimap);
+
+	if (amp)
+		release_metapage(amp);
+	if (bmp)
+		release_metapage(bmp);
+	if (cmp)
+		release_metapage(cmp);
+	if (dmp)
+		release_metapage(dmp);
+
+	AG_UNLOCK(imap, agno);
+
+	release_metapage(mp);
+
+	return (rc);
+}
+
+/*
+ * There are several places in the diAlloc* routines where we initialize
+ * the inode.
+ */
+static inline void
+diInitInode(struct inode *ip, int iagno, int ino, int extno, struct iag * iagp)
+{
+	struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb);
+	struct jfs_inode_info *jfs_ip = JFS_IP(ip);
+
+	ip->i_ino = (iagno << L2INOSPERIAG) + ino;
+	DBG_DIALLOC(JFS_IP(ipimap)->i_imap, ip->i_ino);
+	jfs_ip->ixpxd = iagp->inoext[extno];
+	jfs_ip->agno = BLKTOAG(le64_to_cpu(iagp->agstart), sbi);
+	jfs_ip->active_ag = -1;
+}
+
+
+/*
+ * NAME:        diAlloc(pip,dir,ip)
+ *
+ * FUNCTION:    allocate a disk inode from the inode working map 
+ *		for a fileset or aggregate.
+ *
+ * PARAMETERS:
+ *      pip  	- pointer to incore inode for the parent inode.
+ *      dir  	- TRUE if the new disk inode is for a directory.
+ *      ip  	- pointer to a new inode
+ *
+ * RETURN VALUES:
+ *      0       - success.
+ *      -ENOSPC	- insufficient disk resources.
+ *      -EIO  	- i/o error.
+ */
+int diAlloc(struct inode *pip, boolean_t dir, struct inode *ip)
+{
+	int rc, ino, iagno, addext, extno, bitno, sword;
+	int nwords, rem, i, agno;
+	u32 mask, inosmap, extsmap;
+	struct inode *ipimap;
+	struct metapage *mp;
+	ino_t inum;
+	struct iag *iagp;
+	struct inomap *imap;
+
+	/* get the pointers to the inode map inode and the
+	 * corresponding imap control structure.
+	 */
+	ipimap = JFS_SBI(pip->i_sb)->ipimap;
+	imap = JFS_IP(ipimap)->i_imap;
+	JFS_IP(ip)->ipimap = ipimap;
+	JFS_IP(ip)->fileset = FILESYSTEM_I;
+
+	/* for a directory, the allocation policy is to start 
+	 * at the ag level using the preferred ag.
+	 */
+	if (dir == TRUE) {
+		agno = dbNextAG(JFS_SBI(pip->i_sb)->ipbmap);
+		AG_LOCK(imap, agno);
+		goto tryag;
+	}
+
+	/* for files, the policy starts off by trying to allocate from
+	 * the same iag containing the parent disk inode:
+	 * try to allocate the new disk inode close to the parent disk
+	 * inode, using parent disk inode number + 1 as the allocation
+	 * hint.  (we use a left-to-right policy to attempt to avoid
+	 * moving backward on the disk.)  compute the hint within the
+	 * file system and the iag.
+	 */
+
+	/* get the ag number of this iag */
+	agno = JFS_IP(pip)->agno;
+
+	if (atomic_read(&JFS_SBI(pip->i_sb)->bmap->db_active[agno])) {
+		/*
+		 * There is an open file actively growing.  We want to
+		 * allocate new inodes from a different ag to avoid
+		 * fragmentation problems.
+		 */
+		agno = dbNextAG(JFS_SBI(pip->i_sb)->ipbmap);
+		AG_LOCK(imap, agno);
+		goto tryag;
+	}
+
+	inum = pip->i_ino + 1;
+	ino = inum & (INOSPERIAG - 1);
+
+	/* back off the the hint if it is outside of the iag */
+	if (ino == 0)
+		inum = pip->i_ino;
+
+	/* lock the AG inode map information */
+	AG_LOCK(imap, agno);
+
+	/* Get read lock on imap inode */
+	IREAD_LOCK(ipimap);
+
+	/* get the iag number and read the iag */
+	iagno = INOTOIAG(inum);
+	if ((rc = diIAGRead(imap, iagno, &mp))) {
+		IREAD_UNLOCK(ipimap);
+		AG_UNLOCK(imap, agno);
+		return (rc);
+	}
+	iagp = (struct iag *) mp->data;
+
+	/* determine if new inode extent is allowed to be added to the iag.
+	 * new inode extent can be added to the iag if the ag
+	 * has less than 32 free disk inodes and the iag has free extents.
+	 */
+	addext = (imap->im_agctl[agno].numfree < 32 && iagp->nfreeexts);
+
+	/*
+	 *      try to allocate from the IAG
+	 */
+	/* check if the inode may be allocated from the iag 
+	 * (i.e. the inode has free inodes or new extent can be added).
+	 */
+	if (iagp->nfreeinos || addext) {
+		/* determine the extent number of the hint.
+		 */
+		extno = ino >> L2INOSPEREXT;
+
+		/* check if the extent containing the hint has backed
+		 * inodes.  if so, try to allocate within this extent.
+		 */
+		if (addressPXD(&iagp->inoext[extno])) {
+			bitno = ino & (INOSPEREXT - 1);
+			if ((bitno =
+			     diFindFree(le32_to_cpu(iagp->wmap[extno]),
+					bitno))
+			    < INOSPEREXT) {
+				ino = (extno << L2INOSPEREXT) + bitno;
+
+				/* a free inode (bit) was found within this
+				 * extent, so allocate it.
+				 */
+				rc = diAllocBit(imap, iagp, ino);
+				IREAD_UNLOCK(ipimap);
+				if (rc) {
+					assert(rc == -EIO);
+				} else {
+					/* set the results of the allocation
+					 * and write the iag.
+					 */
+					diInitInode(ip, iagno, ino, extno,
+						    iagp);
+					mark_metapage_dirty(mp);
+				}
+				release_metapage(mp);
+
+				/* free the AG lock and return.
+				 */
+				AG_UNLOCK(imap, agno);
+				return (rc);
+			}
+
+			if (!addext)
+				extno =
+				    (extno ==
+				     EXTSPERIAG - 1) ? 0 : extno + 1;
+		}
+
+		/*
+		 * no free inodes within the extent containing the hint.
+		 *
+		 * try to allocate from the backed extents following
+		 * hint or, if appropriate (i.e. addext is true), allocate
+		 * an extent of free inodes at or following the extent
+		 * containing the hint.
+		 * 
+		 * the free inode and free extent summary maps are used
+		 * here, so determine the starting summary map position
+		 * and the number of words we'll have to examine.  again,
+		 * the approach is to allocate following the hint, so we
+		 * might have to initially ignore prior bits of the summary
+		 * map that represent extents prior to the extent containing
+		 * the hint and later revisit these bits.
+		 */
+		bitno = extno & (EXTSPERSUM - 1);
+		nwords = (bitno == 0) ? SMAPSZ : SMAPSZ + 1;
+		sword = extno >> L2EXTSPERSUM;
+
+		/* mask any prior bits for the starting words of the
+		 * summary map.
+		 */
+		mask = ONES << (EXTSPERSUM - bitno);
+		inosmap = le32_to_cpu(iagp->inosmap[sword]) | mask;
+		extsmap = le32_to_cpu(iagp->extsmap[sword]) | mask;
+
+		/* scan the free inode and free extent summary maps for
+		 * free resources.
+		 */
+		for (i = 0; i < nwords; i++) {
+			/* check if this word of the free inode summary
+			 * map describes an extent with free inodes.
+			 */
+			if (~inosmap) {
+				/* an extent with free inodes has been
+				 * found. determine the extent number
+				 * and the inode number within the extent.
+				 */
+				rem = diFindFree(inosmap, 0);
+				extno = (sword << L2EXTSPERSUM) + rem;
+				rem = diFindFree(le32_to_cpu(iagp->wmap[extno]),
+						 0);
+				if (rem >= INOSPEREXT) {
+					IREAD_UNLOCK(ipimap);
+					release_metapage(mp);
+					AG_UNLOCK(imap, agno);
+					jfs_error(ip->i_sb,
+						  "diAlloc: can't find free bit "
+						  "in wmap");
+					return EIO;
+				}
+
+				/* determine the inode number within the
+				 * iag and allocate the inode from the
+				 * map.
+				 */
+				ino = (extno << L2INOSPEREXT) + rem;
+				rc = diAllocBit(imap, iagp, ino);
+				IREAD_UNLOCK(ipimap);
+				if (rc)
+					assert(rc == -EIO);
+				else {
+					/* set the results of the allocation
+					 * and write the iag.
+					 */
+					diInitInode(ip, iagno, ino, extno,
+						    iagp);
+					mark_metapage_dirty(mp);
+				}
+				release_metapage(mp);
+
+				/* free the AG lock and return.
+				 */
+				AG_UNLOCK(imap, agno);
+				return (rc);
+
+			}
+
+			/* check if we may allocate an extent of free
+			 * inodes and whether this word of the free
+			 * extents summary map describes a free extent.
+			 */
+			if (addext && ~extsmap) {
+				/* a free extent has been found.  determine
+				 * the extent number.
+				 */
+				rem = diFindFree(extsmap, 0);
+				extno = (sword << L2EXTSPERSUM) + rem;
+
+				/* allocate an extent of free inodes.
+				 */
+				if ((rc = diNewExt(imap, iagp, extno))) {
+					/* if there is no disk space for a
+					 * new extent, try to allocate the
+					 * disk inode from somewhere else.
+					 */
+					if (rc == -ENOSPC)
+						break;
+
+					assert(rc == -EIO);
+				} else {
+					/* set the results of the allocation
+					 * and write the iag.
+					 */
+					diInitInode(ip, iagno,
+						    extno << L2INOSPEREXT,
+						    extno, iagp);
+					mark_metapage_dirty(mp);
+				}
+				release_metapage(mp);
+				/* free the imap inode & the AG lock & return.
+				 */
+				IREAD_UNLOCK(ipimap);
+				AG_UNLOCK(imap, agno);
+				return (rc);
+			}
+
+			/* move on to the next set of summary map words.
+			 */
+			sword = (sword == SMAPSZ - 1) ? 0 : sword + 1;
+			inosmap = le32_to_cpu(iagp->inosmap[sword]);
+			extsmap = le32_to_cpu(iagp->extsmap[sword]);
+		}
+	}
+	/* unlock imap inode */
+	IREAD_UNLOCK(ipimap);
+
+	/* nothing doing in this iag, so release it. */
+	release_metapage(mp);
+
+      tryag:
+	/*
+	 * try to allocate anywhere within the same AG as the parent inode.
+	 */
+	rc = diAllocAG(imap, agno, dir, ip);
+
+	AG_UNLOCK(imap, agno);
+
+	if (rc != -ENOSPC)
+		return (rc);
+
+	/*
+	 * try to allocate in any AG.
+	 */
+	return (diAllocAny(imap, agno, dir, ip));
+}
+
+
+/*
+ * NAME:        diAllocAG(imap,agno,dir,ip)
+ *
+ * FUNCTION:    allocate a disk inode from the allocation group.
+ *
+ *		this routine first determines if a new extent of free
+ *		inodes should be added for the allocation group, with
+ *		the current request satisfied from this extent. if this
+ *		is the case, an attempt will be made to do just that.  if
+ *		this attempt fails or it has been determined that a new 
+ *		extent should not be added, an attempt is made to satisfy
+ *		the request by allocating an existing (backed) free inode
+ *		from the allocation group.
+ *
+ * PRE CONDITION: Already have the AG lock for this AG.
+ *
+ * PARAMETERS:
+ *      imap  	- pointer to inode map control structure.
+ *      agno  	- allocation group to allocate from.
+ *      dir  	- TRUE if the new disk inode is for a directory.
+ *      ip  	- pointer to the new inode to be filled in on successful return
+ *		  with the disk inode number allocated, its extent address
+ *		  and the start of the ag.
+ *
+ * RETURN VALUES:
+ *      0       - success.
+ *      -ENOSPC	- insufficient disk resources.
+ *      -EIO  	- i/o error.
+ */
+static int
+diAllocAG(struct inomap * imap, int agno, boolean_t dir, struct inode *ip)
+{
+	int rc, addext, numfree, numinos;
+
+	/* get the number of free and the number of backed disk 
+	 * inodes currently within the ag.
+	 */
+	numfree = imap->im_agctl[agno].numfree;
+	numinos = imap->im_agctl[agno].numinos;
+
+	if (numfree > numinos) {
+		jfs_error(ip->i_sb, "diAllocAG: numfree > numinos");
+		return -EIO;
+	}
+
+	/* determine if we should allocate a new extent of free inodes
+	 * within the ag: for directory inodes, add a new extent
+	 * if there are a small number of free inodes or number of free
+	 * inodes is a small percentage of the number of backed inodes.
+	 */
+	if (dir == TRUE)
+		addext = (numfree < 64 ||
+			  (numfree < 256
+			   && ((numfree * 100) / numinos) <= 20));
+	else
+		addext = (numfree == 0);
+
+	/*
+	 * try to allocate a new extent of free inodes.
+	 */
+	if (addext) {
+		/* if free space is not avaliable for this new extent, try
+		 * below to allocate a free and existing (already backed)
+		 * inode from the ag.
+		 */
+		if ((rc = diAllocExt(imap, agno, ip)) != -ENOSPC)
+			return (rc);
+	}
+
+	/*
+	 * try to allocate an existing free inode from the ag.
+	 */
+	return (diAllocIno(imap, agno, ip));
+}
+
+
+/*
+ * NAME:        diAllocAny(imap,agno,dir,iap)
+ *
+ * FUNCTION:    allocate a disk inode from any other allocation group.
+ *
+ *		this routine is called when an allocation attempt within
+ *		the primary allocation group has failed. if attempts to
+ *		allocate an inode from any allocation group other than the
+ *		specified primary group.
+ *
+ * PARAMETERS:
+ *      imap  	- pointer to inode map control structure.
+ *      agno  	- primary allocation group (to avoid).
+ *      dir  	- TRUE if the new disk inode is for a directory.
+ *      ip  	- pointer to a new inode to be filled in on successful return
+ *		  with the disk inode number allocated, its extent address
+ *		  and the start of the ag.
+ *
+ * RETURN VALUES:
+ *      0       - success.
+ *      -ENOSPC	- insufficient disk resources.
+ *      -EIO  	- i/o error.
+ */
+static int
+diAllocAny(struct inomap * imap, int agno, boolean_t dir, struct inode *ip)
+{
+	int ag, rc;
+	int maxag = JFS_SBI(imap->im_ipimap->i_sb)->bmap->db_maxag;
+
+
+	/* try to allocate from the ags following agno up to 
+	 * the maximum ag number.
+	 */
+	for (ag = agno + 1; ag <= maxag; ag++) {
+		AG_LOCK(imap, ag);
+
+		rc = diAllocAG(imap, ag, dir, ip);
+
+		AG_UNLOCK(imap, ag);
+
+		if (rc != -ENOSPC)
+			return (rc);
+	}
+
+	/* try to allocate from the ags in front of agno.
+	 */
+	for (ag = 0; ag < agno; ag++) {
+		AG_LOCK(imap, ag);
+
+		rc = diAllocAG(imap, ag, dir, ip);
+
+		AG_UNLOCK(imap, ag);
+
+		if (rc != -ENOSPC)
+			return (rc);
+	}
+
+	/* no free disk inodes.
+	 */
+	return -ENOSPC;
+}
+
+
+/*
+ * NAME:        diAllocIno(imap,agno,ip)
+ *
+ * FUNCTION:    allocate a disk inode from the allocation group's free
+ *		inode list, returning an error if this free list is
+ *		empty (i.e. no iags on the list).
+ *
+ *		allocation occurs from the first iag on the list using
+ *		the iag's free inode summary map to find the leftmost
+ *		free inode in the iag. 
+ *		
+ * PRE CONDITION: Already have AG lock for this AG.
+ *		
+ * PARAMETERS:
+ *      imap  	- pointer to inode map control structure.
+ *      agno  	- allocation group.
+ *      ip  	- pointer to new inode to be filled in on successful return
+ *		  with the disk inode number allocated, its extent address
+ *		  and the start of the ag.
+ *
+ * RETURN VALUES:
+ *      0       - success.
+ *      -ENOSPC	- insufficient disk resources.
+ *      -EIO  	- i/o error.
+ */
+static int diAllocIno(struct inomap * imap, int agno, struct inode *ip)
+{
+	int iagno, ino, rc, rem, extno, sword;
+	struct metapage *mp;
+	struct iag *iagp;
+
+	/* check if there are iags on the ag's free inode list.
+	 */
+	if ((iagno = imap->im_agctl[agno].inofree) < 0)
+		return -ENOSPC;
+
+	/* obtain read lock on imap inode */
+	IREAD_LOCK(imap->im_ipimap);
+
+	/* read the iag at the head of the list.
+	 */
+	if ((rc = diIAGRead(imap, iagno, &mp))) {
+		IREAD_UNLOCK(imap->im_ipimap);
+		return (rc);
+	}
+	iagp = (struct iag *) mp->data;
+
+	/* better be free inodes in this iag if it is on the
+	 * list.
+	 */
+	if (!iagp->nfreeinos) {
+		IREAD_UNLOCK(imap->im_ipimap);
+		release_metapage(mp);
+		jfs_error(ip->i_sb,
+			  "diAllocIno: nfreeinos = 0, but iag on freelist");
+		return -EIO;
+	}
+
+	/* scan the free inode summary map to find an extent
+	 * with free inodes.
+	 */
+	for (sword = 0;; sword++) {
+		if (sword >= SMAPSZ) {
+			IREAD_UNLOCK(imap->im_ipimap);
+			release_metapage(mp);
+			jfs_error(ip->i_sb,
+				  "diAllocIno: free inode not found in summary map");
+			return -EIO;
+		}
+
+		if (~iagp->inosmap[sword])
+			break;
+	}
+
+	/* found a extent with free inodes. determine
+	 * the extent number.
+	 */
+	rem = diFindFree(le32_to_cpu(iagp->inosmap[sword]), 0);
+	if (rem >= EXTSPERSUM) {
+		IREAD_UNLOCK(imap->im_ipimap);
+		release_metapage(mp);
+		jfs_error(ip->i_sb, "diAllocIno: no free extent found");
+		return -EIO;
+	}
+	extno = (sword << L2EXTSPERSUM) + rem;
+
+	/* find the first free inode in the extent.
+	 */
+	rem = diFindFree(le32_to_cpu(iagp->wmap[extno]), 0);
+	if (rem >= INOSPEREXT) {
+		IREAD_UNLOCK(imap->im_ipimap);
+		release_metapage(mp);
+		jfs_error(ip->i_sb, "diAllocIno: free inode not found");
+		return -EIO;
+	}
+
+	/* compute the inode number within the iag. 
+	 */
+	ino = (extno << L2INOSPEREXT) + rem;
+
+	/* allocate the inode.
+	 */
+	rc = diAllocBit(imap, iagp, ino);
+	IREAD_UNLOCK(imap->im_ipimap);
+	if (rc) {
+		release_metapage(mp);
+		return (rc);
+	}
+
+	/* set the results of the allocation and write the iag.
+	 */
+	diInitInode(ip, iagno, ino, extno, iagp);
+	write_metapage(mp);
+
+	return (0);
+}
+
+
+/*
+ * NAME:        diAllocExt(imap,agno,ip)
+ *
+ * FUNCTION:   	add a new extent of free inodes to an iag, allocating
+ *	       	an inode from this extent to satisfy the current allocation
+ *	       	request.
+ *		
+ *		this routine first tries to find an existing iag with free
+ *		extents through the ag free extent list.  if list is not
+ *		empty, the head of the list will be selected as the home
+ *		of the new extent of free inodes.  otherwise (the list is
+ *		empty), a new iag will be allocated for the ag to contain
+ *		the extent.
+ *		
+ *		once an iag has been selected, the free extent summary map
+ *		is used to locate a free extent within the iag and diNewExt()
+ *		is called to initialize the extent, with initialization
+ *		including the allocation of the first inode of the extent
+ *		for the purpose of satisfying this request.
+ *
+ * PARAMETERS:
+ *      imap  	- pointer to inode map control structure.
+ *      agno  	- allocation group number.
+ *      ip  	- pointer to new inode to be filled in on successful return
+ *		  with the disk inode number allocated, its extent address
+ *		  and the start of the ag.
+ *
+ * RETURN VALUES:
+ *      0       - success.
+ *      -ENOSPC	- insufficient disk resources.
+ *      -EIO  	- i/o error.
+ */
+static int diAllocExt(struct inomap * imap, int agno, struct inode *ip)
+{
+	int rem, iagno, sword, extno, rc;
+	struct metapage *mp;
+	struct iag *iagp;
+
+	/* check if the ag has any iags with free extents.  if not,
+	 * allocate a new iag for the ag.
+	 */
+	if ((iagno = imap->im_agctl[agno].extfree) < 0) {
+		/* If successful, diNewIAG will obtain the read lock on the
+		 * imap inode.
+		 */
+		if ((rc = diNewIAG(imap, &iagno, agno, &mp))) {
+			return (rc);
+		}
+		iagp = (struct iag *) mp->data;
+
+		/* set the ag number if this a brand new iag
+		 */
+		iagp->agstart =
+		    cpu_to_le64(AGTOBLK(agno, imap->im_ipimap));
+	} else {
+		/* read the iag.
+		 */
+		IREAD_LOCK(imap->im_ipimap);
+		if ((rc = diIAGRead(imap, iagno, &mp))) {
+			IREAD_UNLOCK(imap->im_ipimap);
+			jfs_error(ip->i_sb, "diAllocExt: error reading iag");
+			return rc;
+		}
+		iagp = (struct iag *) mp->data;
+	}
+
+	/* using the free extent summary map, find a free extent.
+	 */
+	for (sword = 0;; sword++) {
+		if (sword >= SMAPSZ) {
+			release_metapage(mp);
+			IREAD_UNLOCK(imap->im_ipimap);
+			jfs_error(ip->i_sb,
+				  "diAllocExt: free ext summary map not found");
+			return -EIO;
+		}
+		if (~iagp->extsmap[sword])
+			break;
+	}
+
+	/* determine the extent number of the free extent.
+	 */
+	rem = diFindFree(le32_to_cpu(iagp->extsmap[sword]), 0);
+	if (rem >= EXTSPERSUM) {
+		release_metapage(mp);
+		IREAD_UNLOCK(imap->im_ipimap);
+		jfs_error(ip->i_sb, "diAllocExt: free extent not found");
+		return -EIO;
+	}
+	extno = (sword << L2EXTSPERSUM) + rem;
+
+	/* initialize the new extent.
+	 */
+	rc = diNewExt(imap, iagp, extno);
+	IREAD_UNLOCK(imap->im_ipimap);
+	if (rc) {
+		/* something bad happened.  if a new iag was allocated,
+		 * place it back on the inode map's iag free list, and
+		 * clear the ag number information.
+		 */
+		if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG)) {
+			IAGFREE_LOCK(imap);
+			iagp->iagfree = cpu_to_le32(imap->im_freeiag);
+			imap->im_freeiag = iagno;
+			IAGFREE_UNLOCK(imap);
+		}
+		write_metapage(mp);
+		return (rc);
+	}
+
+	/* set the results of the allocation and write the iag.
+	 */
+	diInitInode(ip, iagno, extno << L2INOSPEREXT, extno, iagp);
+
+	write_metapage(mp);
+
+	return (0);
+}
+
+
+/*
+ * NAME:        diAllocBit(imap,iagp,ino)
+ *
+ * FUNCTION:   	allocate a backed inode from an iag.
+ *
+ *		this routine performs the mechanics of allocating a
+ *		specified inode from a backed extent.
+ *
+ *		if the inode to be allocated represents the last free
+ *		inode within the iag, the iag will be removed from the
+ *		ag free inode list.
+ *
+ *		a careful update approach is used to provide consistency
+ *		in the face of updates to multiple buffers.  under this
+ *		approach, all required buffers are obtained before making
+ *		any updates and are held all are updates are complete.
+ *		
+ * PRE CONDITION: Already have buffer lock on iagp.  Already have AG lock on
+ *	this AG.  Must have read lock on imap inode.
+ *
+ * PARAMETERS:
+ *      imap  	- pointer to inode map control structure.
+ *      iagp  	- pointer to iag. 
+ *      ino   	- inode number to be allocated within the iag.
+ *
+ * RETURN VALUES:
+ *      0       - success.
+ *      -ENOSPC	- insufficient disk resources.
+ *      -EIO  	- i/o error.
+ */
+static int diAllocBit(struct inomap * imap, struct iag * iagp, int ino)
+{
+	int extno, bitno, agno, sword, rc;
+	struct metapage *amp, *bmp;
+	struct iag *aiagp = 0, *biagp = 0;
+	u32 mask;
+
+	/* check if this is the last free inode within the iag.
+	 * if so, it will have to be removed from the ag free
+	 * inode list, so get the iags preceeding and following
+	 * it on the list.
+	 */
+	if (iagp->nfreeinos == cpu_to_le32(1)) {
+		amp = bmp = NULL;
+
+		if ((int) le32_to_cpu(iagp->inofreefwd) >= 0) {
+			if ((rc =
+			     diIAGRead(imap, le32_to_cpu(iagp->inofreefwd),
+				       &amp)))
+				return (rc);
+			aiagp = (struct iag *) amp->data;
+		}
+
+		if ((int) le32_to_cpu(iagp->inofreeback) >= 0) {
+			if ((rc =
+			     diIAGRead(imap,
+				       le32_to_cpu(iagp->inofreeback),
+				       &bmp))) {
+				if (amp)
+					release_metapage(amp);
+				return (rc);
+			}
+			biagp = (struct iag *) bmp->data;
+		}
+	}
+
+	/* get the ag number, extent number, inode number within
+	 * the extent.
+	 */
+	agno = BLKTOAG(le64_to_cpu(iagp->agstart), JFS_SBI(imap->im_ipimap->i_sb));
+	extno = ino >> L2INOSPEREXT;
+	bitno = ino & (INOSPEREXT - 1);
+
+	/* compute the mask for setting the map.
+	 */
+	mask = HIGHORDER >> bitno;
+
+	/* the inode should be free and backed.
+	 */
+	if (((le32_to_cpu(iagp->pmap[extno]) & mask) != 0) ||
+	    ((le32_to_cpu(iagp->wmap[extno]) & mask) != 0) ||
+	    (addressPXD(&iagp->inoext[extno]) == 0)) {
+		if (amp)
+			release_metapage(amp);
+		if (bmp)
+			release_metapage(bmp);
+
+		jfs_error(imap->im_ipimap->i_sb,
+			  "diAllocBit: iag inconsistent");
+		return -EIO;
+	}
+
+	/* mark the inode as allocated in the working map.
+	 */
+	iagp->wmap[extno] |= cpu_to_le32(mask);
+
+	/* check if all inodes within the extent are now
+	 * allocated.  if so, update the free inode summary
+	 * map to reflect this.
+	 */
+	if (iagp->wmap[extno] == ONES) {
+		sword = extno >> L2EXTSPERSUM;
+		bitno = extno & (EXTSPERSUM - 1);
+		iagp->inosmap[sword] |= cpu_to_le32(HIGHORDER >> bitno);
+	}
+
+	/* if this was the last free inode in the iag, remove the
+	 * iag from the ag free inode list.
+	 */
+	if (iagp->nfreeinos == cpu_to_le32(1)) {
+		if (amp) {
+			aiagp->inofreeback = iagp->inofreeback;
+			write_metapage(amp);
+		}
+
+		if (bmp) {
+			biagp->inofreefwd = iagp->inofreefwd;
+			write_metapage(bmp);
+		} else {
+			imap->im_agctl[agno].inofree =
+			    le32_to_cpu(iagp->inofreefwd);
+		}
+		iagp->inofreefwd = iagp->inofreeback = -1;
+	}
+
+	/* update the free inode count at the iag, ag, inode
+	 * map levels.
+	 */
+	iagp->nfreeinos = cpu_to_le32(le32_to_cpu(iagp->nfreeinos) - 1);
+	imap->im_agctl[agno].numfree -= 1;
+	atomic_dec(&imap->im_numfree);
+
+	return (0);
+}
+
+
+/*
+ * NAME:        diNewExt(imap,iagp,extno)
+ *
+ * FUNCTION:    initialize a new extent of inodes for an iag, allocating
+ *	        the first inode of the extent for use for the current
+ *	        allocation request.
+ *
+ *		disk resources are allocated for the new extent of inodes
+ *		and the inodes themselves are initialized to reflect their
+ *		existence within the extent (i.e. their inode numbers and
+ *		inode extent addresses are set) and their initial state
+ *		(mode and link count are set to zero).
+ *
+ *		if the iag is new, it is not yet on an ag extent free list
+ *		but will now be placed on this list.
+ *
+ *		if the allocation of the new extent causes the iag to
+ *		have no free extent, the iag will be removed from the
+ *		ag extent free list.
+ *
+ *		if the iag has no free backed inodes, it will be placed
+ *		on the ag free inode list, since the addition of the new
+ *		extent will now cause it to have free inodes.
+ *
+ *		a careful update approach is used to provide consistency
+ *		(i.e. list consistency) in the face of updates to multiple
+ *		buffers.  under this approach, all required buffers are
+ *		obtained before making any updates and are held until all
+ *		updates are complete.
+ *		
+ * PRE CONDITION: Already have buffer lock on iagp.  Already have AG lock on
+ *	this AG.  Must have read lock on imap inode.
+ *
+ * PARAMETERS:
+ *      imap  	- pointer to inode map control structure.
+ *      iagp  	- pointer to iag. 
+ *      extno  	- extent number.
+ *
+ * RETURN VALUES:
+ *      0       - success.
+ *      -ENOSPC	- insufficient disk resources.
+ *      -EIO  	- i/o error.
+ */
+static int diNewExt(struct inomap * imap, struct iag * iagp, int extno)
+{
+	int agno, iagno, fwd, back, freei = 0, sword, rc;
+	struct iag *aiagp = 0, *biagp = 0, *ciagp = 0;
+	struct metapage *amp, *bmp, *cmp, *dmp;
+	struct inode *ipimap;
+	s64 blkno, hint;
+	int i, j;
+	u32 mask;
+	ino_t ino;
+	struct dinode *dp;
+	struct jfs_sb_info *sbi;
+
+	/* better have free extents.
+	 */
+	if (!iagp->nfreeexts) {
+		jfs_error(imap->im_ipimap->i_sb, "diNewExt: no free extents");
+		return -EIO;
+	}
+
+	/* get the inode map inode.
+	 */
+	ipimap = imap->im_ipimap;
+	sbi = JFS_SBI(ipimap->i_sb);
+
+	amp = bmp = cmp = NULL;
+
+	/* get the ag and iag numbers for this iag.
+	 */
+	agno = BLKTOAG(le64_to_cpu(iagp->agstart), sbi);
+	iagno = le32_to_cpu(iagp->iagnum);
+
+	/* check if this is the last free extent within the
+	 * iag.  if so, the iag must be removed from the ag
+	 * free extent list, so get the iags preceeding and
+	 * following the iag on this list.
+	 */
+	if (iagp->nfreeexts == cpu_to_le32(1)) {
+		if ((fwd = le32_to_cpu(iagp->extfreefwd)) >= 0) {
+			if ((rc = diIAGRead(imap, fwd, &amp)))
+				return (rc);
+			aiagp = (struct iag *) amp->data;
+		}
+
+		if ((back = le32_to_cpu(iagp->extfreeback)) >= 0) {
+			if ((rc = diIAGRead(imap, back, &bmp)))
+				goto error_out;
+			biagp = (struct iag *) bmp->data;
+		}
+	} else {
+		/* the iag has free extents.  if all extents are free
+		 * (as is the case for a newly allocated iag), the iag
+		 * must be added to the ag free extent list, so get
+		 * the iag at the head of the list in preparation for
+		 * adding this iag to this list.
+		 */
+		fwd = back = -1;
+		if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG)) {
+			if ((fwd = imap->im_agctl[agno].extfree) >= 0) {
+				if ((rc = diIAGRead(imap, fwd, &amp)))
+					goto error_out;
+				aiagp = (struct iag *) amp->data;
+			}
+		}
+	}
+
+	/* check if the iag has no free inodes.  if so, the iag
+	 * will have to be added to the ag free inode list, so get
+	 * the iag at the head of the list in preparation for
+	 * adding this iag to this list.  in doing this, we must
+	 * check if we already have the iag at the head of
+	 * the list in hand.
+	 */
+	if (iagp->nfreeinos == 0) {
+		freei = imap->im_agctl[agno].inofree;
+
+		if (freei >= 0) {
+			if (freei == fwd) {
+				ciagp = aiagp;
+			} else if (freei == back) {
+				ciagp = biagp;
+			} else {
+				if ((rc = diIAGRead(imap, freei, &cmp)))
+					goto error_out;
+				ciagp = (struct iag *) cmp->data;
+			}
+			if (ciagp == NULL) {
+				jfs_error(imap->im_ipimap->i_sb,
+					  "diNewExt: ciagp == NULL");
+				rc = -EIO;
+				goto error_out;
+			}
+		}
+	}
+
+	/* allocate disk space for the inode extent.
+	 */
+	if ((extno == 0) || (addressPXD(&iagp->inoext[extno - 1]) == 0))
+		hint = ((s64) agno << sbi->bmap->db_agl2size) - 1;
+	else
+		hint = addressPXD(&iagp->inoext[extno - 1]) +
+		    lengthPXD(&iagp->inoext[extno - 1]) - 1;
+
+	if ((rc = dbAlloc(ipimap, hint, (s64) imap->im_nbperiext, &blkno)))
+		goto error_out;
+
+	/* compute the inode number of the first inode within the
+	 * extent.
+	 */
+	ino = (iagno << L2INOSPERIAG) + (extno << L2INOSPEREXT);
+
+	/* initialize the inodes within the newly allocated extent a
+	 * page at a time.
+	 */
+	for (i = 0; i < imap->im_nbperiext; i += sbi->nbperpage) {
+		/* get a buffer for this page of disk inodes.
+		 */
+		dmp = get_metapage(ipimap, blkno + i, PSIZE, 1);
+		if (dmp == NULL) {
+			rc = -EIO;
+			goto error_out;
+		}
+		dp = (struct dinode *) dmp->data;
+
+		/* initialize the inode number, mode, link count and
+		 * inode extent address.
+		 */
+		for (j = 0; j < INOSPERPAGE; j++, dp++, ino++) {
+			dp->di_inostamp = cpu_to_le32(sbi->inostamp);
+			dp->di_number = cpu_to_le32(ino);
+			dp->di_fileset = cpu_to_le32(FILESYSTEM_I);
+			dp->di_mode = 0;
+			dp->di_nlink = 0;
+			PXDaddress(&(dp->di_ixpxd), blkno);
+			PXDlength(&(dp->di_ixpxd), imap->im_nbperiext);
+		}
+		write_metapage(dmp);
+	}
+
+	/* if this is the last free extent within the iag, remove the
+	 * iag from the ag free extent list.
+	 */
+	if (iagp->nfreeexts == cpu_to_le32(1)) {
+		if (fwd >= 0)
+			aiagp->extfreeback = iagp->extfreeback;
+
+		if (back >= 0)
+			biagp->extfreefwd = iagp->extfreefwd;
+		else
+			imap->im_agctl[agno].extfree =
+			    le32_to_cpu(iagp->extfreefwd);
+
+		iagp->extfreefwd = iagp->extfreeback = -1;
+	} else {
+		/* if the iag has all free extents (newly allocated iag),
+		 * add the iag to the ag free extent list.
+		 */
+		if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG)) {
+			if (fwd >= 0)
+				aiagp->extfreeback = cpu_to_le32(iagno);
+
+			iagp->extfreefwd = cpu_to_le32(fwd);
+			iagp->extfreeback = -1;
+			imap->im_agctl[agno].extfree = iagno;
+		}
+	}
+
+	/* if the iag has no free inodes, add the iag to the
+	 * ag free inode list.
+	 */
+	if (iagp->nfreeinos == 0) {
+		if (freei >= 0)
+			ciagp->inofreeback = cpu_to_le32(iagno);
+
+		iagp->inofreefwd =
+		    cpu_to_le32(imap->im_agctl[agno].inofree);
+		iagp->inofreeback = -1;
+		imap->im_agctl[agno].inofree = iagno;
+	}
+
+	/* initialize the extent descriptor of the extent. */
+	PXDlength(&iagp->inoext[extno], imap->im_nbperiext);
+	PXDaddress(&iagp->inoext[extno], blkno);
+
+	/* initialize the working and persistent map of the extent.
+	 * the working map will be initialized such that
+	 * it indicates the first inode of the extent is allocated.
+	 */
+	iagp->wmap[extno] = cpu_to_le32(HIGHORDER);
+	iagp->pmap[extno] = 0;
+
+	/* update the free inode and free extent summary maps
+	 * for the extent to indicate the extent has free inodes
+	 * and no longer represents a free extent.
+	 */
+	sword = extno >> L2EXTSPERSUM;
+	mask = HIGHORDER >> (extno & (EXTSPERSUM - 1));
+	iagp->extsmap[sword] |= cpu_to_le32(mask);
+	iagp->inosmap[sword] &= cpu_to_le32(~mask);
+
+	/* update the free inode and free extent counts for the
+	 * iag.
+	 */
+	iagp->nfreeinos = cpu_to_le32(le32_to_cpu(iagp->nfreeinos) +
+				      (INOSPEREXT - 1));
+	iagp->nfreeexts = cpu_to_le32(le32_to_cpu(iagp->nfreeexts) - 1);
+
+	/* update the free and backed inode counts for the ag.
+	 */
+	imap->im_agctl[agno].numfree += (INOSPEREXT - 1);
+	imap->im_agctl[agno].numinos += INOSPEREXT;
+
+	/* update the free and backed inode counts for the inode map.
+	 */
+	atomic_add(INOSPEREXT - 1, &imap->im_numfree);
+	atomic_add(INOSPEREXT, &imap->im_numinos);
+
+	/* write the iags.
+	 */
+	if (amp)
+		write_metapage(amp);
+	if (bmp)
+		write_metapage(bmp);
+	if (cmp)
+		write_metapage(cmp);
+
+	return (0);
+
+      error_out:
+
+	/* release the iags.
+	 */
+	if (amp)
+		release_metapage(amp);
+	if (bmp)
+		release_metapage(bmp);
+	if (cmp)
+		release_metapage(cmp);
+
+	return (rc);
+}
+
+
+/*
+ * NAME:        diNewIAG(imap,iagnop,agno)
+ *
+ * FUNCTION:   	allocate a new iag for an allocation group.
+ *		
+ *		first tries to allocate the iag from the inode map 
+ *		iagfree list:  
+ *		if the list has free iags, the head of the list is removed 
+ *		and returned to satisfy the request.
+ *		if the inode map's iag free list is empty, the inode map
+ *		is extended to hold a new iag. this new iag is initialized
+ *		and returned to satisfy the request.
+ *
+ * PARAMETERS:
+ *      imap  	- pointer to inode map control structure.
+ *      iagnop 	- pointer to an iag number set with the number of the
+ *		  newly allocated iag upon successful return.
+ *      agno  	- allocation group number.
+ *	bpp	- Buffer pointer to be filled in with new IAG's buffer
+ *
+ * RETURN VALUES:
+ *      0       - success.
+ *      -ENOSPC	- insufficient disk resources.
+ *      -EIO  	- i/o error.
+ *
+ * serialization: 
+ *	AG lock held on entry/exit;
+ *	write lock on the map is held inside;
+ *	read lock on the map is held on successful completion;
+ *
+ * note: new iag transaction: 
+ * . synchronously write iag;
+ * . write log of xtree and inode  of imap;
+ * . commit;
+ * . synchronous write of xtree (right to left, bottom to top);
+ * . at start of logredo(): init in-memory imap with one additional iag page;
+ * . at end of logredo(): re-read imap inode to determine
+ *   new imap size;
+ */
+static int
+diNewIAG(struct inomap * imap, int *iagnop, int agno, struct metapage ** mpp)
+{
+	int rc;
+	int iagno, i, xlen;
+	struct inode *ipimap;
+	struct super_block *sb;
+	struct jfs_sb_info *sbi;
+	struct metapage *mp;
+	struct iag *iagp;
+	s64 xaddr = 0;
+	s64 blkno;
+	tid_t tid;
+#ifdef _STILL_TO_PORT
+	xad_t xad;
+#endif				/*  _STILL_TO_PORT */
+	struct inode *iplist[1];
+
+	/* pick up pointers to the inode map and mount inodes */
+	ipimap = imap->im_ipimap;
+	sb = ipimap->i_sb;
+	sbi = JFS_SBI(sb);
+
+	/* acquire the free iag lock */
+	IAGFREE_LOCK(imap);
+
+	/* if there are any iags on the inode map free iag list, 
+	 * allocate the iag from the head of the list.
+	 */
+	if (imap->im_freeiag >= 0) {
+		/* pick up the iag number at the head of the list */
+		iagno = imap->im_freeiag;
+
+		/* determine the logical block number of the iag */
+		blkno = IAGTOLBLK(iagno, sbi->l2nbperpage);
+	} else {
+		/* no free iags. the inode map will have to be extented
+		 * to include a new iag.
+		 */
+
+		/* acquire inode map lock */
+		IWRITE_LOCK(ipimap);
+
+		if (ipimap->i_size >> L2PSIZE != imap->im_nextiag + 1) {
+			IWRITE_UNLOCK(ipimap);
+			IAGFREE_UNLOCK(imap);
+			jfs_error(imap->im_ipimap->i_sb,
+				  "diNewIAG: ipimap->i_size is wrong");
+			return -EIO;
+		}
+
+
+		/* get the next avaliable iag number */
+		iagno = imap->im_nextiag;
+
+		/* make sure that we have not exceeded the maximum inode
+		 * number limit.
+		 */
+		if (iagno > (MAXIAGS - 1)) {
+			/* release the inode map lock */
+			IWRITE_UNLOCK(ipimap);
+
+			rc = -ENOSPC;
+			goto out;
+		}
+
+		/*
+		 * synchronously append new iag page.
+		 */
+		/* determine the logical address of iag page to append */
+		blkno = IAGTOLBLK(iagno, sbi->l2nbperpage);
+
+		/* Allocate extent for new iag page */
+		xlen = sbi->nbperpage;
+		if ((rc = dbAlloc(ipimap, 0, (s64) xlen, &xaddr))) {
+			/* release the inode map lock */
+			IWRITE_UNLOCK(ipimap);
+
+			goto out;
+		}
+
+		/* assign a buffer for the page */
+		mp = get_metapage(ipimap, xaddr, PSIZE, 1);
+		if (!mp) {
+			/* Free the blocks allocated for the iag since it was
+			 * not successfully added to the inode map
+			 */
+			dbFree(ipimap, xaddr, (s64) xlen);
+
+			/* release the inode map lock */
+			IWRITE_UNLOCK(ipimap);
+
+			rc = -EIO;
+			goto out;
+		}
+		iagp = (struct iag *) mp->data;
+
+		/* init the iag */
+		memset(iagp, 0, sizeof(struct iag));
+		iagp->iagnum = cpu_to_le32(iagno);
+		iagp->inofreefwd = iagp->inofreeback = -1;
+		iagp->extfreefwd = iagp->extfreeback = -1;
+		iagp->iagfree = -1;
+		iagp->nfreeinos = 0;
+		iagp->nfreeexts = cpu_to_le32(EXTSPERIAG);
+
+		/* initialize the free inode summary map (free extent
+		 * summary map initialization handled by bzero).
+		 */
+		for (i = 0; i < SMAPSZ; i++)
+			iagp->inosmap[i] = ONES;
+
+		flush_metapage(mp);
+#ifdef _STILL_TO_PORT
+		/* synchronously write the iag page */
+		if (bmWrite(bp)) {
+			/* Free the blocks allocated for the iag since it was
+			 * not successfully added to the inode map
+			 */
+			dbFree(ipimap, xaddr, (s64) xlen);
+
+			/* release the inode map lock */
+			IWRITE_UNLOCK(ipimap);
+
+			rc = -EIO;
+			goto out;
+		}
+
+		/* Now the iag is on disk */
+
+		/*
+		 * start tyransaction of update of the inode map
+		 * addressing structure pointing to the new iag page;
+		 */
+#endif				/*  _STILL_TO_PORT */
+		tid = txBegin(sb, COMMIT_FORCE);
+		down(&JFS_IP(ipimap)->commit_sem);
+
+		/* update the inode map addressing structure to point to it */
+		if ((rc =
+		     xtInsert(tid, ipimap, 0, blkno, xlen, &xaddr, 0))) {
+			txEnd(tid);
+			up(&JFS_IP(ipimap)->commit_sem);
+			/* Free the blocks allocated for the iag since it was
+			 * not successfully added to the inode map
+			 */
+			dbFree(ipimap, xaddr, (s64) xlen);
+
+			/* release the inode map lock */
+			IWRITE_UNLOCK(ipimap);
+
+			goto out;
+		}
+
+		/* update the inode map's inode to reflect the extension */
+		ipimap->i_size += PSIZE;
+		ipimap->i_blocks += LBLK2PBLK(sb, xlen);
+
+		/*
+		 * txCommit(COMMIT_FORCE) will synchronously write address 
+		 * index pages and inode after commit in careful update order 
+		 * of address index pages (right to left, bottom up);
+		 */
+		iplist[0] = ipimap;
+		rc = txCommit(tid, 1, &iplist[0], COMMIT_FORCE);
+
+		txEnd(tid);
+		up(&JFS_IP(ipimap)->commit_sem);
+
+		duplicateIXtree(sb, blkno, xlen, &xaddr);
+
+		/* update the next avaliable iag number */
+		imap->im_nextiag += 1;
+
+		/* Add the iag to the iag free list so we don't lose the iag
+		 * if a failure happens now.
+		 */
+		imap->im_freeiag = iagno;
+
+		/* Until we have logredo working, we want the imap inode &
+		 * control page to be up to date.
+		 */
+		diSync(ipimap);
+
+		/* release the inode map lock */
+		IWRITE_UNLOCK(ipimap);
+	}
+
+	/* obtain read lock on map */
+	IREAD_LOCK(ipimap);
+
+	/* read the iag */
+	if ((rc = diIAGRead(imap, iagno, &mp))) {
+		IREAD_UNLOCK(ipimap);
+		rc = -EIO;
+		goto out;
+	}
+	iagp = (struct iag *) mp->data;
+
+	/* remove the iag from the iag free list */
+	imap->im_freeiag = le32_to_cpu(iagp->iagfree);
+	iagp->iagfree = -1;
+
+	/* set the return iag number and buffer pointer */
+	*iagnop = iagno;
+	*mpp = mp;
+
+      out:
+	/* release the iag free lock */
+	IAGFREE_UNLOCK(imap);
+
+	return (rc);
+}
+
+/*
+ * NAME:        diIAGRead()
+ *
+ * FUNCTION:    get the buffer for the specified iag within a fileset
+ *		or aggregate inode map.
+ *		
+ * PARAMETERS:
+ *      imap  	- pointer to inode map control structure.
+ *      iagno  	- iag number.
+ *      bpp  	- point to buffer pointer to be filled in on successful
+ *		  exit.
+ *
+ * SERIALIZATION:
+ *	must have read lock on imap inode
+ *	(When called by diExtendFS, the filesystem is quiesced, therefore
+ *	 the read lock is unnecessary.)
+ *
+ * RETURN VALUES:
+ *      0       - success.
+ *      -EIO  	- i/o error.
+ */
+static int diIAGRead(struct inomap * imap, int iagno, struct metapage ** mpp)
+{
+	struct inode *ipimap = imap->im_ipimap;
+	s64 blkno;
+
+	/* compute the logical block number of the iag. */
+	blkno = IAGTOLBLK(iagno, JFS_SBI(ipimap->i_sb)->l2nbperpage);
+
+	/* read the iag. */
+	*mpp = read_metapage(ipimap, blkno, PSIZE, 0);
+	if (*mpp == NULL) {
+		return -EIO;
+	}
+
+	return (0);
+}
+
+/*
+ * NAME:        diFindFree()
+ *
+ * FUNCTION:    find the first free bit in a word starting at
+ *		the specified bit position.
+ *
+ * PARAMETERS:
+ *      word  	- word to be examined.
+ *      start  	- starting bit position.
+ *
+ * RETURN VALUES:
+ *      bit position of first free bit in the word or 32 if
+ *	no free bits were found.
+ */
+static int diFindFree(u32 word, int start)
+{
+	int bitno;
+	assert(start < 32);
+	/* scan the word for the first free bit. */
+	for (word <<= start, bitno = start; bitno < 32;
+	     bitno++, word <<= 1) {
+		if ((word & HIGHORDER) == 0)
+			break;
+	}
+	return (bitno);
+}
+
+/*
+ * NAME:	diUpdatePMap()
+ *                                                                    
+ * FUNCTION: Update the persistent map in an IAG for the allocation or 
+ *	freeing of the specified inode.
+ *                                                                    
+ * PRE CONDITIONS: Working map has already been updated for allocate.
+ *
+ * PARAMETERS:
+ *	ipimap	- Incore inode map inode
+ *	inum	- Number of inode to mark in permanent map
+ *	is_free	- If TRUE indicates inode should be marked freed, otherwise
+ *		  indicates inode should be marked allocated.
+ *
+ * RETURN VALUES: 
+ *		0 for success
+ */
+int
+diUpdatePMap(struct inode *ipimap,
+	     unsigned long inum, boolean_t is_free, struct tblock * tblk)
+{
+	int rc;
+	struct iag *iagp;
+	struct metapage *mp;
+	int iagno, ino, extno, bitno;
+	struct inomap *imap;
+	u32 mask;
+	struct jfs_log *log;
+	int lsn, difft, diffp;
+
+	imap = JFS_IP(ipimap)->i_imap;
+	/* get the iag number containing the inode */
+	iagno = INOTOIAG(inum);
+	/* make sure that the iag is contained within the map */
+	if (iagno >= imap->im_nextiag) {
+		jfs_error(ipimap->i_sb,
+			  "diUpdatePMap: the iag is outside the map");
+		return -EIO;
+	}
+	/* read the iag */
+	IREAD_LOCK(ipimap);
+	rc = diIAGRead(imap, iagno, &mp);
+	IREAD_UNLOCK(ipimap);
+	if (rc)
+		return (rc);
+	iagp = (struct iag *) mp->data;
+	/* get the inode number and extent number of the inode within
+	 * the iag and the inode number within the extent.
+	 */
+	ino = inum & (INOSPERIAG - 1);
+	extno = ino >> L2INOSPEREXT;
+	bitno = ino & (INOSPEREXT - 1);
+	mask = HIGHORDER >> bitno;
+	/* 
+	 * mark the inode free in persistent map:
+	 */
+	if (is_free == TRUE) {
+		/* The inode should have been allocated both in working
+		 * map and in persistent map;
+		 * the inode will be freed from working map at the release
+		 * of last reference release;
+		 */
+		if (!(le32_to_cpu(iagp->wmap[extno]) & mask)) {
+			jfs_error(ipimap->i_sb, 
+				  "diUpdatePMap: inode %ld not marked as "
+				  "allocated in wmap!", inum);
+		}
+		if (!(le32_to_cpu(iagp->pmap[extno]) & mask)) {
+			jfs_error(ipimap->i_sb,
+				  "diUpdatePMap: inode %ld not marked as "
+				  "allocated in pmap!", inum);
+		}
+		/* update the bitmap for the extent of the freed inode */
+		iagp->pmap[extno] &= cpu_to_le32(~mask);
+	}
+	/*
+	 * mark the inode allocated in persistent map:
+	 */
+	else {
+		/* The inode should be already allocated in the working map
+		 * and should be free in persistent map;
+		 */
+		if (!(le32_to_cpu(iagp->wmap[extno]) & mask)) {
+			release_metapage(mp);
+			jfs_error(ipimap->i_sb,
+				  "diUpdatePMap: the inode is not allocated in "
+				  "the working map");
+			return -EIO;
+		}
+		if ((le32_to_cpu(iagp->pmap[extno]) & mask) != 0) {
+			release_metapage(mp);
+			jfs_error(ipimap->i_sb,
+				  "diUpdatePMap: the inode is not free in the "
+				  "persistent map");
+			return -EIO;
+		}
+		/* update the bitmap for the extent of the allocated inode */
+		iagp->pmap[extno] |= cpu_to_le32(mask);
+	}
+	/*
+	 * update iag lsn
+	 */
+	lsn = tblk->lsn;
+	log = JFS_SBI(tblk->sb)->log;
+	if (mp->lsn != 0) {
+		/* inherit older/smaller lsn */
+		logdiff(difft, lsn, log);
+		logdiff(diffp, mp->lsn, log);
+		if (difft < diffp) {
+			mp->lsn = lsn;
+			/* move mp after tblock in logsync list */
+			LOGSYNC_LOCK(log);
+			list_del(&mp->synclist);
+			list_add(&mp->synclist, &tblk->synclist);
+			LOGSYNC_UNLOCK(log);
+		}
+		/* inherit younger/larger clsn */
+		LOGSYNC_LOCK(log);
+		assert(mp->clsn);
+		logdiff(difft, tblk->clsn, log);
+		logdiff(diffp, mp->clsn, log);
+		if (difft > diffp)
+			mp->clsn = tblk->clsn;
+		LOGSYNC_UNLOCK(log);
+	} else {
+		mp->log = log;
+		mp->lsn = lsn;
+		/* insert mp after tblock in logsync list */
+		LOGSYNC_LOCK(log);
+		log->count++;
+		list_add(&mp->synclist, &tblk->synclist);
+		mp->clsn = tblk->clsn;
+		LOGSYNC_UNLOCK(log);
+	}
+	write_metapage(mp);
+	return (0);
+}
+
+/*
+ *	diExtendFS()
+ *
+ * function: update imap for extendfs();
+ * 
+ * note: AG size has been increased s.t. each k old contiguous AGs are 
+ * coalesced into a new AG;
+ */
+int diExtendFS(struct inode *ipimap, struct inode *ipbmap)
+{
+	int rc, rcx = 0;
+	struct inomap *imap = JFS_IP(ipimap)->i_imap;
+	struct iag *iagp = 0, *hiagp = 0;
+	struct bmap *mp = JFS_SBI(ipbmap->i_sb)->bmap;
+	struct metapage *bp, *hbp;
+	int i, n, head;
+	int numinos, xnuminos = 0, xnumfree = 0;
+	s64 agstart;
+
+	jfs_info("diExtendFS: nextiag:%d numinos:%d numfree:%d",
+		   imap->im_nextiag, atomic_read(&imap->im_numinos),
+		   atomic_read(&imap->im_numfree));
+
+	/*
+	 *      reconstruct imap 
+	 *
+	 * coalesce contiguous k (newAGSize/oldAGSize) AGs;
+	 * i.e., (AGi, ..., AGj) where i = k*n and j = k*(n+1) - 1 to AGn;
+	 * note: new AG size = old AG size * (2**x).
+	 */
+
+	/* init per AG control information im_agctl[] */
+	for (i = 0; i < MAXAG; i++) {
+		imap->im_agctl[i].inofree = -1;	/* free inode list */
+		imap->im_agctl[i].extfree = -1;	/* free extent list */
+		imap->im_agctl[i].numinos = 0;	/* number of backed inodes */
+		imap->im_agctl[i].numfree = 0;	/* number of free backed inodes */
+	}
+
+	/*
+	 *      process each iag page of the map.
+	 *
+	 * rebuild AG Free Inode List, AG Free Inode Extent List;
+	 */
+	for (i = 0; i < imap->im_nextiag; i++) {
+		if ((rc = diIAGRead(imap, i, &bp))) {
+			rcx = rc;
+			continue;
+		}
+		iagp = (struct iag *) bp->data;
+		if (le32_to_cpu(iagp->iagnum) != i) {
+			release_metapage(bp);
+			jfs_error(ipimap->i_sb,
+				  "diExtendFs: unexpected value of iagnum");
+			return -EIO;
+		}
+
+		/* leave free iag in the free iag list */
+		if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG)) {  
+		        release_metapage(bp);
+			continue;
+		}
+
+		/* agstart that computes to the same ag is treated as same; */
+		agstart = le64_to_cpu(iagp->agstart);
+		/* iagp->agstart = agstart & ~(mp->db_agsize - 1); */
+		n = agstart >> mp->db_agl2size;
+
+		/* compute backed inodes */
+		numinos = (EXTSPERIAG - le32_to_cpu(iagp->nfreeexts))
+		    << L2INOSPEREXT;
+		if (numinos > 0) {
+			/* merge AG backed inodes */
+			imap->im_agctl[n].numinos += numinos;
+			xnuminos += numinos;
+		}
+
+		/* if any backed free inodes, insert at AG free inode list */
+		if ((int) le32_to_cpu(iagp->nfreeinos) > 0) {
+			if ((head = imap->im_agctl[n].inofree) == -1)
+				iagp->inofreefwd = iagp->inofreeback = -1;
+			else {
+				if ((rc = diIAGRead(imap, head, &hbp))) {
+					rcx = rc;
+					goto nextiag;
+				}
+				hiagp = (struct iag *) hbp->data;
+				hiagp->inofreeback = iagp->iagnum;
+				iagp->inofreefwd = cpu_to_le32(head);
+				iagp->inofreeback = -1;
+				write_metapage(hbp);
+			}
+
+			imap->im_agctl[n].inofree =
+			    le32_to_cpu(iagp->iagnum);
+
+			/* merge AG backed free inodes */
+			imap->im_agctl[n].numfree +=
+			    le32_to_cpu(iagp->nfreeinos);
+			xnumfree += le32_to_cpu(iagp->nfreeinos);
+		}
+
+		/* if any free extents, insert at AG free extent list */
+		if (le32_to_cpu(iagp->nfreeexts) > 0) {
+			if ((head = imap->im_agctl[n].extfree) == -1)
+				iagp->extfreefwd = iagp->extfreeback = -1;
+			else {
+				if ((rc = diIAGRead(imap, head, &hbp))) {
+					rcx = rc;
+					goto nextiag;
+				}
+				hiagp = (struct iag *) hbp->data;
+				hiagp->extfreeback = iagp->iagnum;
+				iagp->extfreefwd = cpu_to_le32(head);
+				iagp->extfreeback = -1;
+				write_metapage(hbp);
+			}
+
+			imap->im_agctl[n].extfree =
+			    le32_to_cpu(iagp->iagnum);
+		}
+
+	      nextiag:
+		write_metapage(bp);
+	}
+
+	if (xnuminos != atomic_read(&imap->im_numinos) ||
+	    xnumfree != atomic_read(&imap->im_numfree)) {
+		jfs_error(ipimap->i_sb,
+			  "diExtendFs: numinos or numfree incorrect");
+		return -EIO;
+	}
+
+	return rcx;
+}
+
+
+/*
+ *	duplicateIXtree()
+ *
+ * serialization: IWRITE_LOCK held on entry/exit
+ *
+ * note: shadow page with regular inode (rel.2);
+ */
+static void duplicateIXtree(struct super_block *sb, s64 blkno,
+			    int xlen, s64 *xaddr)
+{
+	struct jfs_superblock *j_sb;
+	struct buffer_head *bh;
+	struct inode *ip;
+	tid_t tid;
+
+	/* if AIT2 ipmap2 is bad, do not try to update it */
+	if (JFS_SBI(sb)->mntflag & JFS_BAD_SAIT)	/* s_flag */
+		return;
+	ip = diReadSpecial(sb, FILESYSTEM_I, 1);
+	if (ip == NULL) {
+		JFS_SBI(sb)->mntflag |= JFS_BAD_SAIT;
+		if (readSuper(sb, &bh))
+			return;
+		j_sb = (struct jfs_superblock *)bh->b_data;
+		j_sb->s_flag |= cpu_to_le32(JFS_BAD_SAIT);
+
+		mark_buffer_dirty(bh);
+		ll_rw_block(WRITE, 1, &bh);
+		wait_on_buffer(bh);
+		brelse(bh);
+		return;
+	}
+
+	/* start transaction */
+	tid = txBegin(sb, COMMIT_FORCE);
+	/* update the inode map addressing structure to point to it */
+	if (xtInsert(tid, ip, 0, blkno, xlen, xaddr, 0)) {
+		JFS_SBI(sb)->mntflag |= JFS_BAD_SAIT;
+		txAbort(tid, 1);
+		goto cleanup;
+
+	}
+	/* update the inode map's inode to reflect the extension */
+	ip->i_size += PSIZE;
+	ip->i_blocks += LBLK2PBLK(sb, xlen);
+	txCommit(tid, 1, &ip, COMMIT_FORCE);
+      cleanup:
+	txEnd(tid);
+	diFreeSpecial(ip);
+}
+
+/*
+ * NAME:        copy_from_dinode()
+ *
+ * FUNCTION:    Copies inode info from disk inode to in-memory inode
+ *
+ * RETURN VALUES:
+ *      0       - success
+ *      -ENOMEM	- insufficient memory
+ */
+static int copy_from_dinode(struct dinode * dip, struct inode *ip)
+{
+	struct jfs_inode_info *jfs_ip = JFS_IP(ip);
+
+	jfs_ip->fileset = le32_to_cpu(dip->di_fileset);
+	jfs_ip->mode2 = le32_to_cpu(dip->di_mode);
+
+	ip->i_mode = le32_to_cpu(dip->di_mode) & 0xffff;
+	ip->i_nlink = le32_to_cpu(dip->di_nlink);
+	ip->i_uid = le32_to_cpu(dip->di_uid);
+	ip->i_gid = le32_to_cpu(dip->di_gid);
+	ip->i_size = le64_to_cpu(dip->di_size);
+	ip->i_atime = le32_to_cpu(dip->di_atime.tv_sec);
+	ip->i_mtime = le32_to_cpu(dip->di_mtime.tv_sec);
+	ip->i_ctime = le32_to_cpu(dip->di_ctime.tv_sec);
+	ip->i_blksize = ip->i_sb->s_blocksize;
+	ip->i_blocks = LBLK2PBLK(ip->i_sb, le64_to_cpu(dip->di_nblocks));
+	ip->i_generation = le32_to_cpu(dip->di_gen);
+
+	jfs_ip->ixpxd = dip->di_ixpxd;	/* in-memory pxd's are little-endian */
+	jfs_ip->acl = dip->di_acl;	/* as are dxd's */
+	jfs_ip->ea = dip->di_ea;
+	jfs_ip->next_index = le32_to_cpu(dip->di_next_index);
+	jfs_ip->otime = le32_to_cpu(dip->di_otime.tv_sec);
+	jfs_ip->acltype = le32_to_cpu(dip->di_acltype);
+
+	if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode))
+		ip->i_rdev = to_kdev_t(le32_to_cpu(dip->di_rdev));
+
+	if (S_ISDIR(ip->i_mode)) {
+		memcpy(&jfs_ip->i_dirtable, &dip->di_dirtable, 384);
+	} else if (S_ISREG(ip->i_mode) || S_ISLNK(ip->i_mode)) {
+		memcpy(&jfs_ip->i_xtroot, &dip->di_xtroot, 288);
+	} else
+		memcpy(&jfs_ip->i_inline_ea, &dip->di_inlineea, 128);
+
+	/* Zero the in-memory-only stuff */
+	jfs_ip->cflag = 0;
+	jfs_ip->btindex = 0;
+	jfs_ip->btorder = 0;
+	jfs_ip->bxflag = 0;
+	jfs_ip->blid = 0;
+	jfs_ip->atlhead = 0;
+	jfs_ip->atltail = 0;
+	jfs_ip->xtlid = 0;
+	return (0);
+}
+
+/*
+ * NAME:        copy_to_dinode()
+ *
+ * FUNCTION:    Copies inode info from in-memory inode to disk inode
+ */
+static void copy_to_dinode(struct dinode * dip, struct inode *ip)
+{
+	struct jfs_inode_info *jfs_ip = JFS_IP(ip);
+
+	dip->di_fileset = cpu_to_le32(jfs_ip->fileset);
+	dip->di_inostamp = cpu_to_le32(JFS_SBI(ip->i_sb)->inostamp);
+	dip->di_number = cpu_to_le32(ip->i_ino);
+	dip->di_gen = cpu_to_le32(ip->i_generation);
+	dip->di_size = cpu_to_le64(ip->i_size);
+	dip->di_nblocks = cpu_to_le64(PBLK2LBLK(ip->i_sb, ip->i_blocks));
+	dip->di_nlink = cpu_to_le32(ip->i_nlink);
+	dip->di_uid = cpu_to_le32(ip->i_uid);
+	dip->di_gid = cpu_to_le32(ip->i_gid);
+	/*
+	 * mode2 is only needed for storing the higher order bits.
+	 * Trust i_mode for the lower order ones
+	 */
+	dip->di_mode = cpu_to_le32((jfs_ip->mode2 & 0xffff0000) | ip->i_mode);
+	dip->di_atime.tv_sec = cpu_to_le32(ip->i_atime);
+	dip->di_atime.tv_nsec = 0;
+	dip->di_ctime.tv_sec = cpu_to_le32(ip->i_ctime);
+	dip->di_ctime.tv_nsec = 0;
+	dip->di_mtime.tv_sec = cpu_to_le32(ip->i_mtime);
+	dip->di_mtime.tv_nsec = 0;
+	dip->di_ixpxd = jfs_ip->ixpxd;	/* in-memory pxd's are little-endian */
+	dip->di_acl = jfs_ip->acl;	/* as are dxd's */
+	dip->di_ea = jfs_ip->ea;
+	dip->di_next_index = cpu_to_le32(jfs_ip->next_index);
+	dip->di_otime.tv_sec = cpu_to_le32(jfs_ip->otime);
+	dip->di_otime.tv_nsec = 0;
+	dip->di_acltype = cpu_to_le32(jfs_ip->acltype);
+
+	if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode))
+		dip->di_rdev = cpu_to_le32(kdev_t_to_nr(ip->i_rdev));
+}
+
+#ifdef	_JFS_DEBUG_IMAP
+/*
+ *	DBGdiInit()
+ */
+static void *DBGdiInit(struct inomap * imap)
+{
+	u32 *dimap;
+	int size;
+	size = 64 * 1024;
+	if ((dimap = (u32 *) xmalloc(size, L2PSIZE, kernel_heap)) == NULL)
+		assert(0);
+	bzero((void *) dimap, size);
+	imap->im_DBGdimap = dimap;
+}
+
+/*
+ *	DBGdiAlloc()
+ */
+static void DBGdiAlloc(struct inomap * imap, ino_t ino)
+{
+	u32 *dimap = imap->im_DBGdimap;
+	int w, b;
+	u32 m;
+	w = ino >> 5;
+	b = ino & 31;
+	m = 0x80000000 >> b;
+	assert(w < 64 * 256);
+	if (dimap[w] & m) {
+		printk("DEBUG diAlloc: duplicate alloc ino:0x%x\n", ino);
+	}
+	dimap[w] |= m;
+}
+
+/*
+ *	DBGdiFree()
+ */
+static void DBGdiFree(struct inomap * imap, ino_t ino)
+{
+	u32 *dimap = imap->im_DBGdimap;
+	int w, b;
+	u32 m;
+	w = ino >> 5;
+	b = ino & 31;
+	m = 0x80000000 >> b;
+	assert(w < 64 * 256);
+	if ((dimap[w] & m) == 0) {
+		printk("DEBUG diFree: duplicate free ino:0x%x\n", ino);
+	}
+	dimap[w] &= ~m;
+}
+
+static void dump_cp(struct inomap * ipimap, char *function, int line)
+{
+	printk("\n* ********* *\nControl Page %s %d\n", function, line);
+	printk("FreeIAG %d\tNextIAG %d\n", ipimap->im_freeiag,
+	       ipimap->im_nextiag);
+	printk("NumInos %d\tNumFree %d\n",
+	       atomic_read(&ipimap->im_numinos),
+	       atomic_read(&ipimap->im_numfree));
+	printk("AG InoFree %d\tAG ExtFree %d\n",
+	       ipimap->im_agctl[0].inofree, ipimap->im_agctl[0].extfree);
+	printk("AG NumInos %d\tAG NumFree %d\n",
+	       ipimap->im_agctl[0].numinos, ipimap->im_agctl[0].numfree);
+}
+
+static void dump_iag(struct iag * iag, char *function, int line)
+{
+	printk("\n* ********* *\nIAG %s %d\n", function, line);
+	printk("IagNum %d\tIAG Free %d\n", le32_to_cpu(iag->iagnum),
+	       le32_to_cpu(iag->iagfree));
+	printk("InoFreeFwd %d\tInoFreeBack %d\n",
+	       le32_to_cpu(iag->inofreefwd),
+	       le32_to_cpu(iag->inofreeback));
+	printk("ExtFreeFwd %d\tExtFreeBack %d\n",
+	       le32_to_cpu(iag->extfreefwd),
+	       le32_to_cpu(iag->extfreeback));
+	printk("NFreeInos %d\tNFreeExts %d\n", le32_to_cpu(iag->nfreeinos),
+	       le32_to_cpu(iag->nfreeexts));
+}
+#endif				/* _JFS_DEBUG_IMAP */
diff --git a/fs/jfs/jfs_imap.h b/fs/jfs/jfs_imap.h
new file mode 100644
index 00000000000000..41255872172b86
--- /dev/null
+++ b/fs/jfs/jfs_imap.h
@@ -0,0 +1,157 @@
+/*
+ *   Copyright (c) International Business Machines Corp., 2000-2002
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef	_H_JFS_IMAP
+#define _H_JFS_IMAP
+
+#include "jfs_txnmgr.h"
+
+/*
+ *	jfs_imap.h: disk inode manager
+ */
+
+#define	EXTSPERIAG	128	/* number of disk inode extent per iag  */
+#define IMAPBLKNO	0	/* lblkno of dinomap within inode map   */
+#define SMAPSZ		4	/* number of words per summary map      */
+#define	EXTSPERSUM	32	/* number of extents per summary map entry */
+#define	L2EXTSPERSUM	5	/* l2 number of extents per summary map */
+#define	PGSPERIEXT	4	/* number of 4K pages per dinode extent */
+#define	MAXIAGS		((1<<20)-1)	/* maximum number of iags       */
+#define	MAXAG		128	/* maximum number of allocation groups  */
+
+#define AMAPSIZE      512	/* bytes in the IAG allocation maps */
+#define SMAPSIZE      16	/* bytes in the IAG summary maps */
+
+/* convert inode number to iag number */
+#define	INOTOIAG(ino)	((ino) >> L2INOSPERIAG)
+
+/* convert iag number to logical block number of the iag page */
+#define IAGTOLBLK(iagno,l2nbperpg)	(((iagno) + 1) << (l2nbperpg))
+
+/* get the starting block number of the 4K page of an inode extent
+ * that contains ino.
+ */
+#define INOPBLK(pxd,ino,l2nbperpg)    	(addressPXD((pxd)) +		\
+	((((ino) & (INOSPEREXT-1)) >> L2INOSPERPAGE) << (l2nbperpg)))
+
+/*
+ *	inode allocation map:
+ * 
+ * inode allocation map consists of 
+ * . the inode map control page and
+ * . inode allocation group pages (per 4096 inodes)
+ * which are addressed by standard JFS xtree.
+ */
+/*
+ *	inode allocation group page (per 4096 inodes of an AG)
+ */
+struct iag {
+	s64 agstart;		/* 8: starting block of ag              */
+	s32 iagnum;		/* 4: inode allocation group number     */
+	s32 inofreefwd;		/* 4: ag inode free list forward        */
+	s32 inofreeback;	/* 4: ag inode free list back           */
+	s32 extfreefwd;		/* 4: ag inode extent free list forward */
+	s32 extfreeback;	/* 4: ag inode extent free list back    */
+	s32 iagfree;		/* 4: iag free list                     */
+
+	/* summary map: 1 bit per inode extent */
+	s32 inosmap[SMAPSZ];	/* 16: sum map of mapwords w/ free inodes;
+				 *      note: this indicates free and backed
+				 *      inodes, if the extent is not backed the
+				 *      value will be 1.  if the extent is
+				 *      backed but all inodes are being used the
+				 *      value will be 1.  if the extent is
+				 *      backed but at least one of the inodes is
+				 *      free the value will be 0.
+				 */
+	s32 extsmap[SMAPSZ];	/* 16: sum map of mapwords w/ free extents */
+	s32 nfreeinos;		/* 4: number of free inodes             */
+	s32 nfreeexts;		/* 4: number of free extents            */
+	/* (72) */
+	u8 pad[1976];		/* 1976: pad to 2048 bytes */
+	/* allocation bit map: 1 bit per inode (0 - free, 1 - allocated) */
+	u32 wmap[EXTSPERIAG];	/* 512: working allocation map  */
+	u32 pmap[EXTSPERIAG];	/* 512: persistent allocation map */
+	pxd_t inoext[EXTSPERIAG];	/* 1024: inode extent addresses */
+};				/* (4096) */
+
+/*
+ *	per AG control information (in inode map control page)
+ */
+struct iagctl {
+	s32 inofree;		/* 4: free inode list anchor            */
+	s32 extfree;		/* 4: free extent list anchor           */
+	s32 numinos;		/* 4: number of backed inodes           */
+	s32 numfree;		/* 4: number of free inodes             */
+};				/* (16) */
+
+/*
+ *	per fileset/aggregate inode map control page
+ */
+struct dinomap {
+	s32 in_freeiag;		/* 4: free iag list anchor     */
+	s32 in_nextiag;		/* 4: next free iag number     */
+	s32 in_numinos;		/* 4: num of backed inodes */
+	s32 in_numfree;		/* 4: num of free backed inodes */
+	s32 in_nbperiext;	/* 4: num of blocks per inode extent */
+	s32 in_l2nbperiext;	/* 4: l2 of in_nbperiext */
+	s32 in_diskblock;	/* 4: for standalone test driver  */
+	s32 in_maxag;		/* 4: for standalone test driver  */
+	u8 pad[2016];		/* 2016: pad to 2048 */
+	struct iagctl in_agctl[MAXAG];	/* 2048: AG control information */
+};				/* (4096) */
+
+
+/*
+ *	In-core inode map control page
+ */
+struct inomap {
+	struct dinomap im_imap;		/* 4096: inode allocation control */
+	struct inode *im_ipimap;	/* 4: ptr to inode for imap   */
+	struct semaphore im_freelock;	/* 4: iag free list lock      */
+	struct semaphore im_aglock[MAXAG];	/* 512: per AG locks          */
+	u32 *im_DBGdimap;
+	atomic_t im_numinos;	/* num of backed inodes */
+	atomic_t im_numfree;	/* num of free backed inodes */
+};
+
+#define	im_freeiag	im_imap.in_freeiag
+#define	im_nextiag	im_imap.in_nextiag
+#define	im_agctl	im_imap.in_agctl
+#define	im_nbperiext	im_imap.in_nbperiext
+#define	im_l2nbperiext	im_imap.in_l2nbperiext
+
+/* for standalone testdriver
+ */
+#define	im_diskblock	im_imap.in_diskblock
+#define	im_maxag	im_imap.in_maxag
+
+extern int diFree(struct inode *);
+extern int diAlloc(struct inode *, boolean_t, struct inode *);
+extern int diSync(struct inode *);
+/* external references */
+extern int diUpdatePMap(struct inode *ipimap, unsigned long inum,
+			boolean_t is_free, struct tblock * tblk);
+extern int diExtendFS(struct inode *ipimap, struct inode *ipbmap);
+extern int diMount(struct inode *);
+extern int diUnmount(struct inode *, int);
+extern int diRead(struct inode *);
+extern struct inode *diReadSpecial(struct super_block *, ino_t, int);
+extern void diWriteSpecial(struct inode *, int);
+extern void diFreeSpecial(struct inode *);
+extern int diWrite(tid_t tid, struct inode *);
+#endif				/* _H_JFS_IMAP */
diff --git a/fs/jfs/jfs_incore.h b/fs/jfs/jfs_incore.h
new file mode 100644
index 00000000000000..fc422b24eb69d4
--- /dev/null
+++ b/fs/jfs/jfs_incore.h
@@ -0,0 +1,186 @@
+/*
+ *   Copyright (c) International Business Machines Corp., 2000-2003
+ *   Portions Copyright (c) Christoph Hellwig, 2001-2002
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */ 
+#ifndef _H_JFS_INCORE
+#define _H_JFS_INCORE
+
+#include <linux/rwsem.h>
+#include <linux/slab.h>
+#include <asm/bitops.h>
+#include "jfs_types.h"
+#include "jfs_xtree.h"
+#include "jfs_dtree.h"
+
+/*
+ * JFS magic number
+ */
+#define JFS_SUPER_MAGIC 0x3153464a /* "JFS1" */
+
+/*
+ * JFS-private inode information
+ */
+struct jfs_inode_info {
+	struct inode *inode;	/* pointer back to fs-independent inode */
+	int	fileset;	/* fileset number (always 16)*/
+	uint	mode2;		/* jfs-specific mode		*/
+	pxd_t   ixpxd;		/* inode extent descriptor	*/
+	dxd_t	acl;		/* dxd describing acl	*/
+	dxd_t	ea;		/* dxd describing ea	*/
+	time_t	otime;		/* time created	*/
+	uint	next_index;	/* next available directory entry index */
+	int	acltype;	/* Type of ACL	*/
+	short	btorder;	/* access order	*/
+	short	btindex;	/* btpage entry index*/
+	struct inode *ipimap;	/* inode map			*/
+	long	cflag;		/* commit flags		*/
+	u16	bxflag;		/* xflag of pseudo buffer?	*/
+	unchar	agno;		/* ag number			*/
+	signed char active_ag;	/* ag currently allocating from	*/
+	lid_t	blid;		/* lid of pseudo buffer?	*/
+	lid_t	atlhead;	/* anonymous tlock list head	*/
+	lid_t	atltail;	/* anonymous tlock list tail	*/
+	spinlock_t ag_lock;	/* protects active_ag		*/
+	struct list_head anon_inode_list; /* inodes having anonymous txns */
+	/*
+	 * rdwrlock serializes xtree between reads & writes and synchronizes
+	 * changes to special inodes.  It's use would be redundant on
+	 * directories since the i_sem taken in the VFS is sufficient.
+	 */
+	struct rw_semaphore rdwrlock;
+	/*
+	 * commit_sem serializes transaction processing on an inode.
+	 * It must be taken after beginning a transaction (txBegin), since
+	 * dirty inodes may be committed while a new transaction on the
+	 * inode is blocked in txBegin or TxBeginAnon
+	 */
+	struct semaphore commit_sem;
+	lid_t	xtlid;		/* lid of xtree lock on directory */
+	union {
+		struct {
+			xtpage_t _xtroot;	/* 288: xtree root */
+			struct inomap *_imap;	/* 4: inode map header	*/
+		} file;
+		struct {
+			struct dir_table_slot _table[12]; /* 96: dir index */
+			dtroot_t _dtroot;	/* 288: dtree root */
+		} dir;
+		struct {
+			unchar _unused[16];	/* 16: */
+			dxd_t _dxd;		/* 16: */
+			unchar _inline[128];	/* 128: inline symlink */
+			/* _inline_ea may overlay the last part of
+			 * file._xtroot if maxentry = XTROOTINITSLOT
+			 */
+			unchar _inline_ea[128];	/* 128: inline extended attr */
+		} link;
+	} u;
+};
+#define i_xtroot u.file._xtroot
+#define i_imap u.file._imap
+#define i_dirtable u.dir._table
+#define i_dtroot u.dir._dtroot
+#define i_inline u.link._inline
+#define i_inline_ea u.link._inline_ea
+
+
+#define IREAD_LOCK(ip)		down_read(&JFS_IP(ip)->rdwrlock)
+#define IREAD_UNLOCK(ip)	up_read(&JFS_IP(ip)->rdwrlock)
+#define IWRITE_LOCK(ip)		down_write(&JFS_IP(ip)->rdwrlock)
+#define IWRITE_UNLOCK(ip)	up_write(&JFS_IP(ip)->rdwrlock)
+
+/*
+ * cflag
+ */
+enum cflags {
+	COMMIT_New,		/* never committed inode   */
+	COMMIT_Nolink,		/* inode committed with zero link count */
+	COMMIT_Inlineea,	/* commit inode inline EA */
+	COMMIT_Freewmap,	/* free WMAP at iClose() */
+	COMMIT_Dirty,		/* Inode is really dirty */
+	COMMIT_Dirtable,	/* commit changes to di_dirtable */
+	COMMIT_Stale,		/* data extent is no longer valid */
+	COMMIT_Synclist,	/* metadata pages on group commit synclist */
+	COMMIT_Syncdata,	/* Data must be synced before inode committed */
+};
+
+#define set_cflag(flag, ip)	set_bit(flag, &(JFS_IP(ip)->cflag))
+#define clear_cflag(flag, ip)	clear_bit(flag, &(JFS_IP(ip)->cflag))
+#define test_cflag(flag, ip)	test_bit(flag, &(JFS_IP(ip)->cflag))
+#define test_and_clear_cflag(flag, ip) \
+	test_and_clear_bit(flag, &(JFS_IP(ip)->cflag))
+/*
+ * JFS-private superblock information.
+ */
+struct jfs_sb_info {
+	unsigned long	mntflag;	/* aggregate attributes	*/
+	struct inode	*ipbmap;	/* block map inode		*/
+	struct inode	*ipaimap;	/* aggregate inode map inode	*/
+	struct inode	*ipaimap2;	/* secondary aimap inode	*/
+	struct inode	*ipimap;	/* aggregate inode map inode	*/
+	struct jfs_log	*log;		/* log			*/
+	short		bsize;		/* logical block size	*/
+	short		l2bsize;	/* log2 logical block size	*/
+	short		nbperpage;	/* blocks per page		*/
+	short		l2nbperpage;	/* log2 blocks per page	*/
+	short		l2niperblk;	/* log2 inodes per page	*/
+	kdev_t		logdev;		/* external log device	*/
+	uint		aggregate;	/* volume identifier in log record */
+	pxd_t		logpxd;		/* pxd describing log	*/
+	pxd_t		fsckpxd;	/* pxd describing fsck wkspc */
+	pxd_t		ait2;		/* pxd describing AIT copy	*/
+	char		uuid[16];	/* 128-bit uuid for volume	*/
+	char		loguuid[16];	/* 128-bit uuid for log	*/
+	/* Formerly in ipimap */
+	uint		gengen;		/* inode generation generator*/
+	uint		inostamp;	/* shows inode belongs to fileset*/
+
+        /* Formerly in ipbmap */
+	struct bmap	*bmap;		/* incore bmap descriptor	*/
+	struct nls_table *nls_tab;	/* current codepage		*/
+	uint		state;		/* mount/recovery state	*/
+	unsigned long	flag;		/* mount time flags */
+	uint		p_state;	/* state prior to going no integrity */
+};
+
+static inline struct jfs_inode_info *JFS_IP(struct inode *inode)
+{
+	return inode->u.generic_ip;
+}
+
+static inline struct jfs_sb_info *JFS_SBI(struct super_block *sb)
+{
+	return sb->u.generic_sbp;
+}
+
+static inline int isReadOnly(struct inode *inode)
+{
+	if (JFS_SBI(inode->i_sb)->log)
+		return 0;
+	return 1;
+}
+
+/*
+ * Allocating and freeing the structure
+ */
+extern kmem_cache_t *jfs_inode_cachep;
+extern int alloc_jfs_inode(struct inode *);
+
+#define free_jfs_inode(inode) \
+	kmem_cache_free(jfs_inode_cachep, (inode)->u.generic_ip)
+
+#endif /* _H_JFS_INCORE */
diff --git a/fs/jfs/jfs_inode.c b/fs/jfs/jfs_inode.c
new file mode 100644
index 00000000000000..412dcf54b6a075
--- /dev/null
+++ b/fs/jfs/jfs_inode.c
@@ -0,0 +1,121 @@
+/*
+ *   Copyright (c) International Business Machines Corp., 2000-2002
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/fs.h>
+#include "jfs_incore.h"
+#include "jfs_filsys.h"
+#include "jfs_imap.h"
+#include "jfs_dinode.h"
+#include "jfs_debug.h"
+
+kmem_cache_t *jfs_inode_cachep;
+
+/*
+ * NAME:	ialloc()
+ *
+ * FUNCTION:	Allocate a new inode
+ *
+ */
+struct inode *ialloc(struct inode *parent, umode_t mode)
+{
+	struct super_block *sb = parent->i_sb;
+	struct inode *inode;
+	struct jfs_inode_info *jfs_inode;
+	int rc;
+
+	inode = new_inode(sb);
+	if (!inode) {
+		jfs_warn("ialloc: new_inode returned NULL!");
+		return inode;
+	}
+
+	rc = alloc_jfs_inode(inode);
+	if (rc) {
+		make_bad_inode(inode);
+		iput(inode);
+		return NULL;
+	}
+	jfs_inode = JFS_IP(inode);
+
+	rc = diAlloc(parent, S_ISDIR(mode), inode);
+	if (rc) {
+		jfs_warn("ialloc: diAlloc returned %d!", rc);
+		free_jfs_inode(inode);
+		make_bad_inode(inode);
+		iput(inode);
+		return NULL;
+	}
+
+	inode->i_uid = current->fsuid;
+	if (parent->i_mode & S_ISGID) {
+		inode->i_gid = parent->i_gid;
+		if (S_ISDIR(mode))
+			mode |= S_ISGID;
+	} else
+		inode->i_gid = current->fsgid;
+
+	inode->i_mode = mode;
+	if (S_ISDIR(mode))
+		jfs_inode->mode2 = IDIRECTORY | mode;
+	else
+		jfs_inode->mode2 = INLINEEA | ISPARSE | mode;
+	inode->i_blksize = sb->s_blocksize;
+	inode->i_blocks = 0;
+	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+	jfs_inode->otime = inode->i_ctime;
+	inode->i_generation = JFS_SBI(sb)->gengen++;
+
+	jfs_inode->cflag = 0;
+	set_cflag(COMMIT_New, inode);
+
+	/* Zero remaining fields */
+	memset(&jfs_inode->acl, 0, sizeof(dxd_t));
+	memset(&jfs_inode->ea, 0, sizeof(dxd_t));
+	jfs_inode->next_index = 0;
+	jfs_inode->acltype = 0;
+	jfs_inode->btorder = 0;
+	jfs_inode->btindex = 0;
+	jfs_inode->bxflag = 0;
+	jfs_inode->blid = 0;
+	jfs_inode->atlhead = 0;
+	jfs_inode->atltail = 0;
+	jfs_inode->xtlid = 0;
+
+	jfs_info("ialloc returns inode = 0x%p\n", inode);
+
+	return inode;
+}
+
+/*
+ * NAME:	alloc_jfs_inode()
+ *
+ * FUNCTION:	Allocate jfs portion of in-memory inode
+ *
+ */
+int alloc_jfs_inode(struct inode *inode)
+{
+	struct jfs_inode_info *jfs_inode;
+
+	jfs_inode = kmem_cache_alloc(jfs_inode_cachep, GFP_NOFS);
+	inode->u.generic_ip = jfs_inode;
+	if (!jfs_inode)
+		return -ENOSPC;
+	jfs_inode->inode = inode;
+
+	return 0;
+}
diff --git a/fs/jfs/jfs_inode.h b/fs/jfs/jfs_inode.h
new file mode 100644
index 00000000000000..3df91fbfe7812e
--- /dev/null
+++ b/fs/jfs/jfs_inode.h
@@ -0,0 +1,23 @@
+/*
+ *   Copyright (c) International Business Machines Corp., 2000-2001
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef	_H_JFS_INODE
+#define _H_JFS_INODE
+
+extern struct inode *ialloc(struct inode *, umode_t);
+
+#endif				/* _H_JFS_INODE */
diff --git a/fs/jfs/jfs_lock.h b/fs/jfs/jfs_lock.h
new file mode 100644
index 00000000000000..10ad1d08668562
--- /dev/null
+++ b/fs/jfs/jfs_lock.h
@@ -0,0 +1,51 @@
+/*
+ *   Copyright (c) International Business Machines Corp., 2000-2001
+ *   Portions Copyright (c) Christoph Hellwig, 2001-2002
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef _H_JFS_LOCK
+#define _H_JFS_LOCK
+
+#include <linux/spinlock.h>
+#include <linux/sched.h>
+
+/*
+ *	jfs_lock.h
+ */
+
+/*
+ * Conditional sleep where condition is protected by spinlock
+ *
+ * lock_cmd and unlock_cmd take and release the spinlock
+ */
+#define __SLEEP_COND(wq, cond, lock_cmd, unlock_cmd)	\
+do {							\
+	DECLARE_WAITQUEUE(__wait, current);		\
+							\
+	add_wait_queue(&wq, &__wait);			\
+	for (;;) {					\
+		set_current_state(TASK_UNINTERRUPTIBLE);\
+		if (cond)				\
+			break;				\
+		unlock_cmd;				\
+		schedule();				\
+		lock_cmd;				\
+	}						\
+	current->state = TASK_RUNNING;			\
+	remove_wait_queue(&wq, &__wait);		\
+} while (0)
+
+#endif				/* _H_JFS_LOCK */
diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c
new file mode 100644
index 00000000000000..bd23204ad99104
--- /dev/null
+++ b/fs/jfs/jfs_logmgr.c
@@ -0,0 +1,2392 @@
+/*
+ *   Copyright (c) International Business Machines Corp., 2000-2003
+ *   Portions Copyright (c) Christoph Hellwig, 2001-2002
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/*
+ *	jfs_logmgr.c: log manager
+ *
+ * for related information, see transaction manager (jfs_txnmgr.c), and
+ * recovery manager (jfs_logredo.c).
+ *
+ * note: for detail, RTFS.
+ *
+ *	log buffer manager:
+ * special purpose buffer manager supporting log i/o requirements.
+ * per log serial pageout of logpage
+ * queuing i/o requests and redrive i/o at iodone
+ * maintain current logpage buffer
+ * no caching since append only
+ * appropriate jfs buffer cache buffers as needed
+ *
+ *	group commit:
+ * transactions which wrote COMMIT records in the same in-memory
+ * log page during the pageout of previous/current log page(s) are
+ * committed together by the pageout of the page.
+ *
+ *	TBD lazy commit:
+ * transactions are committed asynchronously when the log page
+ * containing it COMMIT is paged out when it becomes full;
+ *
+ *	serialization:
+ * . a per log lock serialize log write.
+ * . a per log lock serialize group commit.
+ * . a per log lock serialize log open/close;
+ *
+ *	TBD log integrity:
+ * careful-write (ping-pong) of last logpage to recover from crash
+ * in overwrite.
+ * detection of split (out-of-order) write of physical sectors
+ * of last logpage via timestamp at end of each sector
+ * with its mirror data array at trailer).
+ *
+ *	alternatives:
+ * lsn - 64-bit monotonically increasing integer vs
+ * 32-bit lspn and page eor.
+ */
+
+#include <linux/fs.h>
+#include <linux/locks.h>
+#include <linux/blkdev.h>
+#include <linux/interrupt.h>
+#include <linux/smp_lock.h>
+#include <linux/completion.h>
+#include "jfs_incore.h"
+#include "jfs_filsys.h"
+#include "jfs_metapage.h"
+#include "jfs_txnmgr.h"
+#include "jfs_debug.h"
+
+
+/*
+ * lbuf's ready to be redriven.  Protected by log_redrive_lock (jfsIO thread)
+ */
+static struct lbuf *log_redrive_list;
+static spinlock_t log_redrive_lock = SPIN_LOCK_UNLOCKED;
+DECLARE_WAIT_QUEUE_HEAD(jfs_IO_thread_wait);
+
+
+/*
+ *	log read/write serialization (per log)
+ */
+#define LOG_LOCK_INIT(log)	init_MUTEX(&(log)->loglock)
+#define LOG_LOCK(log)		down(&((log)->loglock))
+#define LOG_UNLOCK(log)		up(&((log)->loglock))
+
+
+/*
+ *	log group commit serialization (per log)
+ */
+
+#define LOGGC_LOCK_INIT(log)	spin_lock_init(&(log)->gclock)
+#define LOGGC_LOCK(log)		spin_lock_irq(&(log)->gclock)
+#define LOGGC_UNLOCK(log)	spin_unlock_irq(&(log)->gclock)
+#define LOGGC_WAKEUP(tblk)	wake_up_all(&(tblk)->gcwait)
+
+/*
+ *	log sync serialization (per log)
+ */
+#define	LOGSYNC_DELTA(logsize)		min((logsize)/8, 128*LOGPSIZE)
+#define	LOGSYNC_BARRIER(logsize)	((logsize)/4)
+/*
+#define	LOGSYNC_DELTA(logsize)		min((logsize)/4, 256*LOGPSIZE)
+#define	LOGSYNC_BARRIER(logsize)	((logsize)/2)
+*/
+
+
+/*
+ *	log buffer cache synchronization
+ */
+static spinlock_t jfsLCacheLock = SPIN_LOCK_UNLOCKED;
+
+#define	LCACHE_LOCK(flags)	spin_lock_irqsave(&jfsLCacheLock, flags)
+#define	LCACHE_UNLOCK(flags)	spin_unlock_irqrestore(&jfsLCacheLock, flags)
+
+/*
+ * See __SLEEP_COND in jfs_locks.h
+ */
+#define LCACHE_SLEEP_COND(wq, cond, flags)	\
+do {						\
+	if (cond)				\
+		break;				\
+	__SLEEP_COND(wq, cond, LCACHE_LOCK(flags), LCACHE_UNLOCK(flags)); \
+} while (0)
+
+#define	LCACHE_WAKEUP(event)	wake_up(event)
+
+
+/*
+ *	lbuf buffer cache (lCache) control
+ */
+/* log buffer manager pageout control (cumulative, inclusive) */
+#define	lbmREAD		0x0001
+#define	lbmWRITE	0x0002	/* enqueue at tail of write queue;
+				 * init pageout if at head of queue;
+				 */
+#define	lbmRELEASE	0x0004	/* remove from write queue
+				 * at completion of pageout;
+				 * do not free/recycle it yet:
+				 * caller will free it;
+				 */
+#define	lbmSYNC		0x0008	/* do not return to freelist
+				 * when removed from write queue;
+				 */
+#define lbmFREE		0x0010	/* return to freelist
+				 * at completion of pageout;
+				 * the buffer may be recycled;
+				 */
+#define	lbmDONE		0x0020
+#define	lbmERROR	0x0040
+#define lbmGC		0x0080	/* lbmIODone to perform post-GC processing
+				 * of log page
+				 */
+#define lbmDIRECT	0x0100
+
+/*
+ * external references
+ */
+extern void txLazyUnlock(struct tblock * tblk);
+extern int jfs_stop_threads;
+extern struct completion jfsIOwait;
+
+/*
+ * forward references
+ */
+static int lmWriteRecord(struct jfs_log * log, struct tblock * tblk,
+			 struct lrd * lrd, struct tlock * tlck);
+
+static int lmNextPage(struct jfs_log * log);
+static int lmLogFileSystem(struct jfs_log * log, char *uuid, int activate);
+
+static int lbmLogInit(struct jfs_log * log);
+static void lbmLogShutdown(struct jfs_log * log);
+static struct lbuf *lbmAllocate(struct jfs_log * log, int);
+static void lbmFree(struct lbuf * bp);
+static void lbmfree(struct lbuf * bp);
+static int lbmRead(struct jfs_log * log, int pn, struct lbuf ** bpp);
+static void lbmWrite(struct jfs_log * log, struct lbuf * bp, int flag,
+		     int cant_block);
+static void lbmDirectWrite(struct jfs_log * log, struct lbuf * bp, int flag);
+static int lbmIOWait(struct lbuf * bp, int flag);
+static void lbmIODone(struct buffer_head *bh, int);
+static void lbmStartIO(struct lbuf * bp);
+static void lmGCwrite(struct jfs_log * log, int cant_block);
+static int lmLogSync(struct jfs_log * log, int nosyncwait);
+
+
+/*
+ *	statistics
+ */
+#ifdef CONFIG_JFS_STATISTICS
+struct lmStat {
+	uint commit;		/* # of commit */
+	uint pagedone;		/* # of page written */
+	uint submitted;		/* # of pages submitted */
+	uint full_page;		/* # of full pages submitted */
+	uint partial_page;	/* # of partial pages submitted */
+} lmStat;
+#endif
+
+
+/*
+ * NAME:	lmLog()
+ *
+ * FUNCTION:	write a log record;
+ *
+ * PARAMETER:
+ *
+ * RETURN:	lsn - offset to the next log record to write (end-of-log);
+ *		-1  - error;
+ *
+ * note: todo: log error handler
+ */
+int lmLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
+	  struct tlock * tlck)
+{
+	int lsn;
+	int diffp, difft;
+	struct metapage *mp = NULL;
+
+	jfs_info("lmLog: log:0x%p tblk:0x%p, lrd:0x%p tlck:0x%p",
+		 log, tblk, lrd, tlck);
+
+	LOG_LOCK(log);
+
+	/* log by (out-of-transaction) JFS ? */
+	if (tblk == NULL)
+		goto writeRecord;
+
+	/* log from page ? */
+	if (tlck == NULL ||
+	    tlck->type & tlckBTROOT || (mp = tlck->mp) == NULL)
+		goto writeRecord;
+
+	/*
+	 *      initialize/update page/transaction recovery lsn
+	 */
+	lsn = log->lsn;
+
+	LOGSYNC_LOCK(log);
+
+	/*
+	 * initialize page lsn if first log write of the page
+	 */
+	if (mp->lsn == 0) {
+		mp->log = log;
+		mp->lsn = lsn;
+		log->count++;
+
+		/* insert page at tail of logsynclist */
+		list_add_tail(&mp->synclist, &log->synclist);
+	}
+
+	/*
+	 *      initialize/update lsn of tblock of the page
+	 *
+	 * transaction inherits oldest lsn of pages associated
+	 * with allocation/deallocation of resources (their
+	 * log records are used to reconstruct allocation map
+	 * at recovery time: inode for inode allocation map,
+	 * B+-tree index of extent descriptors for block
+	 * allocation map);
+	 * allocation map pages inherit transaction lsn at
+	 * commit time to allow forwarding log syncpt past log
+	 * records associated with allocation/deallocation of
+	 * resources only after persistent map of these map pages
+	 * have been updated and propagated to home.
+	 */
+	/*
+	 * initialize transaction lsn:
+	 */
+	if (tblk->lsn == 0) {
+		/* inherit lsn of its first page logged */
+		tblk->lsn = mp->lsn;
+		log->count++;
+
+		/* insert tblock after the page on logsynclist */
+		list_add(&tblk->synclist, &mp->synclist);
+	}
+	/*
+	 * update transaction lsn:
+	 */
+	else {
+		/* inherit oldest/smallest lsn of page */
+		logdiff(diffp, mp->lsn, log);
+		logdiff(difft, tblk->lsn, log);
+		if (diffp < difft) {
+			/* update tblock lsn with page lsn */
+			tblk->lsn = mp->lsn;
+
+			/* move tblock after page on logsynclist */
+			list_del(&tblk->synclist);
+			list_add(&tblk->synclist, &mp->synclist);
+		}
+	}
+
+	LOGSYNC_UNLOCK(log);
+
+	/*
+	 *      write the log record
+	 */
+      writeRecord:
+	lsn = lmWriteRecord(log, tblk, lrd, tlck);
+
+	/*
+	 * forward log syncpt if log reached next syncpt trigger
+	 */
+	logdiff(diffp, lsn, log);
+	if (diffp >= log->nextsync)
+		lsn = lmLogSync(log, 0);
+
+	/* update end-of-log lsn */
+	log->lsn = lsn;
+
+	LOG_UNLOCK(log);
+
+	/* return end-of-log address */
+	return lsn;
+}
+
+
+/*
+ * NAME:	lmWriteRecord()
+ *
+ * FUNCTION:	move the log record to current log page
+ *
+ * PARAMETER:	cd	- commit descriptor
+ *
+ * RETURN:	end-of-log address
+ *			
+ * serialization: LOG_LOCK() held on entry/exit
+ */
+static int
+lmWriteRecord(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
+	      struct tlock * tlck)
+{
+	int lsn = 0;		/* end-of-log address */
+	struct lbuf *bp;	/* dst log page buffer */
+	struct logpage *lp;	/* dst log page */
+	caddr_t dst;		/* destination address in log page */
+	int dstoffset;		/* end-of-log offset in log page */
+	int freespace;		/* free space in log page */
+	caddr_t p;		/* src meta-data page */
+	caddr_t src;
+	int srclen;
+	int nbytes;		/* number of bytes to move */
+	int i;
+	int len;
+	struct linelock *linelock;
+	struct lv *lv;
+	struct lvd *lvd;
+	int l2linesize;
+
+	len = 0;
+
+	/* retrieve destination log page to write */
+	bp = (struct lbuf *) log->bp;
+	lp = (struct logpage *) bp->l_ldata;
+	dstoffset = log->eor;
+
+	/* any log data to write ? */
+	if (tlck == NULL)
+		goto moveLrd;
+
+	/*
+	 *      move log record data
+	 */
+	/* retrieve source meta-data page to log */
+	if (tlck->flag & tlckPAGELOCK) {
+		p = (caddr_t) (tlck->mp->data);
+		linelock = (struct linelock *) & tlck->lock;
+	}
+	/* retrieve source in-memory inode to log */
+	else if (tlck->flag & tlckINODELOCK) {
+		if (tlck->type & tlckDTREE)
+			p = (caddr_t) &JFS_IP(tlck->ip)->i_dtroot;
+		else
+			p = (caddr_t) &JFS_IP(tlck->ip)->i_xtroot;
+		linelock = (struct linelock *) & tlck->lock;
+	}
+#ifdef	_JFS_WIP
+	else if (tlck->flag & tlckINLINELOCK) {
+
+		inlinelock = (struct inlinelock *) & tlck;
+		p = (caddr_t) & inlinelock->pxd;
+		linelock = (struct linelock *) & tlck;
+	}
+#endif				/* _JFS_WIP */
+	else {
+		jfs_err("lmWriteRecord: UFO tlck:0x%p", tlck);
+		return 0;	/* Probably should trap */
+	}
+	l2linesize = linelock->l2linesize;
+
+      moveData:
+	ASSERT(linelock->index <= linelock->maxcnt);
+
+	lv = linelock->lv;
+	for (i = 0; i < linelock->index; i++, lv++) {
+		if (lv->length == 0)
+			continue;
+
+		/* is page full ? */
+		if (dstoffset >= LOGPSIZE - LOGPTLRSIZE) {
+			/* page become full: move on to next page */
+			lmNextPage(log);
+
+			bp = log->bp;
+			lp = (struct logpage *) bp->l_ldata;
+			dstoffset = LOGPHDRSIZE;
+		}
+
+		/*
+		 * move log vector data
+		 */
+		src = (u8 *) p + (lv->offset << l2linesize);
+		srclen = lv->length << l2linesize;
+		len += srclen;
+		while (srclen > 0) {
+			freespace = (LOGPSIZE - LOGPTLRSIZE) - dstoffset;
+			nbytes = min(freespace, srclen);
+			dst = (caddr_t) lp + dstoffset;
+			memcpy(dst, src, nbytes);
+			dstoffset += nbytes;
+
+			/* is page not full ? */
+			if (dstoffset < LOGPSIZE - LOGPTLRSIZE)
+				break;
+
+			/* page become full: move on to next page */
+			lmNextPage(log);
+
+			bp = (struct lbuf *) log->bp;
+			lp = (struct logpage *) bp->l_ldata;
+			dstoffset = LOGPHDRSIZE;
+
+			srclen -= nbytes;
+			src += nbytes;
+		}
+
+		/*
+		 * move log vector descriptor
+		 */
+		len += 4;
+		lvd = (struct lvd *) ((caddr_t) lp + dstoffset);
+		lvd->offset = cpu_to_le16(lv->offset);
+		lvd->length = cpu_to_le16(lv->length);
+		dstoffset += 4;
+		jfs_info("lmWriteRecord: lv offset:%d length:%d",
+			 lv->offset, lv->length);
+	}
+
+	if ((i = linelock->next)) {
+		linelock = (struct linelock *) lid_to_tlock(i);
+		goto moveData;
+	}
+
+	/*
+	 *      move log record descriptor
+	 */
+      moveLrd:
+	lrd->length = cpu_to_le16(len);
+
+	src = (caddr_t) lrd;
+	srclen = LOGRDSIZE;
+
+	while (srclen > 0) {
+		freespace = (LOGPSIZE - LOGPTLRSIZE) - dstoffset;
+		nbytes = min(freespace, srclen);
+		dst = (caddr_t) lp + dstoffset;
+		memcpy(dst, src, nbytes);
+
+		dstoffset += nbytes;
+		srclen -= nbytes;
+
+		/* are there more to move than freespace of page ? */
+		if (srclen)
+			goto pageFull;
+
+		/*
+		 * end of log record descriptor
+		 */
+
+		/* update last log record eor */
+		log->eor = dstoffset;
+		bp->l_eor = dstoffset;
+		lsn = (log->page << L2LOGPSIZE) + dstoffset;
+
+		if (lrd->type & cpu_to_le16(LOG_COMMIT)) {
+			tblk->clsn = lsn;
+			jfs_info("wr: tclsn:0x%x, beor:0x%x", tblk->clsn,
+				 bp->l_eor);
+
+			INCREMENT(lmStat.commit);	/* # of commit */
+
+			/*
+			 * enqueue tblock for group commit:
+			 *
+			 * enqueue tblock of non-trivial/synchronous COMMIT
+			 * at tail of group commit queue
+			 * (trivial/asynchronous COMMITs are ignored by
+			 * group commit.)
+			 */
+			LOGGC_LOCK(log);
+
+			/* init tblock gc state */
+			tblk->flag = tblkGC_QUEUE;
+			tblk->bp = log->bp;
+			tblk->pn = log->page;
+			tblk->eor = log->eor;
+
+			/* enqueue transaction to commit queue */
+			tblk->cqnext = NULL;
+			if (log->cqueue.head) {
+				log->cqueue.tail->cqnext = tblk;
+				log->cqueue.tail = tblk;
+			} else
+				log->cqueue.head = log->cqueue.tail = tblk;
+
+			LOGGC_UNLOCK(log);
+		}
+
+		jfs_info("lmWriteRecord: lrd:0x%04x bp:0x%p pn:%d eor:0x%x",
+			le16_to_cpu(lrd->type), log->bp, log->page, dstoffset);
+
+		/* page not full ? */
+		if (dstoffset < LOGPSIZE - LOGPTLRSIZE)
+			return lsn;
+
+	      pageFull:
+		/* page become full: move on to next page */
+		lmNextPage(log);
+
+		bp = (struct lbuf *) log->bp;
+		lp = (struct logpage *) bp->l_ldata;
+		dstoffset = LOGPHDRSIZE;
+		src += nbytes;
+	}
+
+	return lsn;
+}
+
+
+/*
+ * NAME:	lmNextPage()
+ *
+ * FUNCTION:	write current page and allocate next page.
+ *
+ * PARAMETER:	log
+ *
+ * RETURN:	0
+ *			
+ * serialization: LOG_LOCK() held on entry/exit
+ */
+static int lmNextPage(struct jfs_log * log)
+{
+	struct logpage *lp;
+	int lspn;		/* log sequence page number */
+	int pn;			/* current page number */
+	struct lbuf *bp;
+	struct lbuf *nextbp;
+	struct tblock *tblk;
+
+	/* get current log page number and log sequence page number */
+	pn = log->page;
+	bp = log->bp;
+	lp = (struct logpage *) bp->l_ldata;
+	lspn = le32_to_cpu(lp->h.page);
+
+	LOGGC_LOCK(log);
+
+	/*
+	 *      write or queue the full page at the tail of write queue
+	 */
+	/* get the tail tblk on commit queue */
+	tblk = log->cqueue.tail;
+
+	/* every tblk who has COMMIT record on the current page,
+	 * and has not been committed, must be on commit queue
+	 * since tblk is queued at commit queueu at the time
+	 * of writing its COMMIT record on the page before
+	 * page becomes full (even though the tblk thread
+	 * who wrote COMMIT record may have been suspended
+	 * currently);
+	 */
+
+	/* is page bound with outstanding tail tblk ? */
+	if (tblk && tblk->pn == pn) {
+		/* mark tblk for end-of-page */
+		tblk->flag |= tblkGC_EOP;
+
+		if (log->cflag & logGC_PAGEOUT) {
+			/* if page is not already on write queue,
+			 * just enqueue (no lbmWRITE to prevent redrive)
+			 * buffer to wqueue to ensure correct serial order
+			 * of the pages since log pages will be added
+			 * continuously
+			 */
+			if (bp->l_wqnext == NULL)
+				lbmWrite(log, bp, 0, 0);
+		} else {
+			/*
+			 * No current GC leader, initiate group commit
+			 */
+			log->cflag |= logGC_PAGEOUT;
+			lmGCwrite(log, 0);
+		}
+	}
+	/* page is not bound with outstanding tblk:
+	 * init write or mark it to be redriven (lbmWRITE)
+	 */
+	else {
+		/* finalize the page */
+		bp->l_ceor = bp->l_eor;
+		lp->h.eor = lp->t.eor = cpu_to_le16(bp->l_ceor);
+		lbmWrite(log, bp, lbmWRITE | lbmRELEASE | lbmFREE, 0);
+	}
+	LOGGC_UNLOCK(log);
+
+	/*
+	 *      allocate/initialize next page
+	 */
+	/* if log wraps, the first data page of log is 2
+	 * (0 never used, 1 is superblock).
+	 */
+	log->page = (pn == log->size - 1) ? 2 : pn + 1;
+	log->eor = LOGPHDRSIZE;	/* ? valid page empty/full at logRedo() */
+
+	/* allocate/initialize next log page buffer */
+	nextbp = lbmAllocate(log, log->page);
+	nextbp->l_eor = log->eor;
+	log->bp = nextbp;
+
+	/* initialize next log page */
+	lp = (struct logpage *) nextbp->l_ldata;
+	lp->h.page = lp->t.page = cpu_to_le32(lspn + 1);
+	lp->h.eor = lp->t.eor = cpu_to_le16(LOGPHDRSIZE);
+
+	return 0;
+}
+
+
+/*
+ * NAME:	lmGroupCommit()
+ *
+ * FUNCTION:	group commit
+ *	initiate pageout of the pages with COMMIT in the order of
+ *	page number - redrive pageout of the page at the head of
+ *	pageout queue until full page has been written.
+ *
+ * RETURN:	
+ *
+ * NOTE:
+ *	LOGGC_LOCK serializes log group commit queue, and
+ *	transaction blocks on the commit queue.
+ *	N.B. LOG_LOCK is NOT held during lmGroupCommit().
+ */
+int lmGroupCommit(struct jfs_log * log, struct tblock * tblk)
+{
+	int rc = 0;
+
+	LOGGC_LOCK(log);
+
+	/* group committed already ? */
+	if (tblk->flag & tblkGC_COMMITTED) {
+		if (tblk->flag & tblkGC_ERROR)
+			rc = -EIO;
+
+		LOGGC_UNLOCK(log);
+		return rc;
+	}
+	jfs_info("lmGroup Commit: tblk = 0x%p, gcrtc = %d", tblk, log->gcrtc);
+
+	if (tblk->xflag & COMMIT_LAZY)
+		tblk->flag |= tblkGC_LAZY;
+
+	if ((!(log->cflag & logGC_PAGEOUT)) && log->cqueue.head &&
+	    (!(tblk->xflag & COMMIT_LAZY) || test_bit(log_FLUSH, &log->flag))) {
+		/*
+		 * No pageout in progress
+		 *
+		 * start group commit as its group leader.
+		 */
+		log->cflag |= logGC_PAGEOUT;
+
+		lmGCwrite(log, 0);
+	}
+
+	if (tblk->xflag & COMMIT_LAZY) {
+		/*
+		 * Lazy transactions can leave now
+		 */
+		LOGGC_UNLOCK(log);
+		return 0;
+	}
+
+	/* lmGCwrite gives up LOGGC_LOCK, check again */
+
+	if (tblk->flag & tblkGC_COMMITTED) {
+		if (tblk->flag & tblkGC_ERROR)
+			rc = -EIO;
+
+		LOGGC_UNLOCK(log);
+		return rc;
+	}
+
+	/* upcount transaction waiting for completion
+	 */
+	log->gcrtc++;
+	tblk->flag |= tblkGC_READY;
+
+	__SLEEP_COND(tblk->gcwait, (tblk->flag & tblkGC_COMMITTED),
+		     LOGGC_LOCK(log), LOGGC_UNLOCK(log));
+
+	/* removed from commit queue */
+	if (tblk->flag & tblkGC_ERROR)
+		rc = -EIO;
+
+	LOGGC_UNLOCK(log);
+	return rc;
+}
+
+/*
+ * NAME:	lmGCwrite()
+ *
+ * FUNCTION:	group commit write
+ *	initiate write of log page, building a group of all transactions
+ *	with commit records on that page.
+ *
+ * RETURN:	None
+ *
+ * NOTE:
+ *	LOGGC_LOCK must be held by caller.
+ *	N.B. LOG_LOCK is NOT held during lmGroupCommit().
+ */
+static void lmGCwrite(struct jfs_log * log, int cant_write)
+{
+	struct lbuf *bp;
+	struct logpage *lp;
+	int gcpn;		/* group commit page number */
+	struct tblock *tblk;
+	struct tblock *xtblk;
+
+	/*
+	 * build the commit group of a log page
+	 *
+	 * scan commit queue and make a commit group of all
+	 * transactions with COMMIT records on the same log page.
+	 */
+	/* get the head tblk on the commit queue */
+	tblk = xtblk = log->cqueue.head;
+	gcpn = tblk->pn;
+
+	while (tblk && tblk->pn == gcpn) {
+		xtblk = tblk;
+
+		/* state transition: (QUEUE, READY) -> COMMIT */
+		tblk->flag |= tblkGC_COMMIT;
+		tblk = tblk->cqnext;
+	}
+	tblk = xtblk;		/* last tblk of the page */
+
+	/*
+	 * pageout to commit transactions on the log page.
+	 */
+	bp = (struct lbuf *) tblk->bp;
+	lp = (struct logpage *) bp->l_ldata;
+	/* is page already full ? */
+	if (tblk->flag & tblkGC_EOP) {
+		/* mark page to free at end of group commit of the page */
+		tblk->flag &= ~tblkGC_EOP;
+		tblk->flag |= tblkGC_FREE;
+		bp->l_ceor = bp->l_eor;
+		lp->h.eor = lp->t.eor = cpu_to_le16(bp->l_ceor);
+		lbmWrite(log, bp, lbmWRITE | lbmRELEASE | lbmGC,
+			 cant_write);
+		INCREMENT(lmStat.full_page);
+	}
+	/* page is not yet full */
+	else {
+		bp->l_ceor = tblk->eor;	/* ? bp->l_ceor = bp->l_eor; */
+		lp->h.eor = lp->t.eor = cpu_to_le16(bp->l_ceor);
+		lbmWrite(log, bp, lbmWRITE | lbmGC, cant_write);
+		INCREMENT(lmStat.partial_page);
+	}
+}
+
+/*
+ * NAME:	lmPostGC()
+ *
+ * FUNCTION:	group commit post-processing
+ *	Processes transactions after their commit records have been written
+ *	to disk, redriving log I/O if necessary.
+ *
+ * RETURN:	None
+ *
+ * NOTE:
+ *	This routine is called a interrupt time by lbmIODone
+ */
+static void lmPostGC(struct lbuf * bp)
+{
+	unsigned long flags;
+	struct jfs_log *log = bp->l_log;
+	struct logpage *lp;
+	struct tblock *tblk;
+
+	//LOGGC_LOCK(log);
+	spin_lock_irqsave(&log->gclock, flags);
+	/*
+	 * current pageout of group commit completed.
+	 *
+	 * remove/wakeup transactions from commit queue who were
+	 * group committed with the current log page
+	 */
+	while ((tblk = log->cqueue.head) && (tblk->flag & tblkGC_COMMIT)) {
+		/* if transaction was marked GC_COMMIT then
+		 * it has been shipped in the current pageout
+		 * and made it to disk - it is committed.
+		 */
+
+		if (bp->l_flag & lbmERROR)
+			tblk->flag |= tblkGC_ERROR;
+
+		/* remove it from the commit queue */
+		log->cqueue.head = tblk->cqnext;
+		if (log->cqueue.head == NULL)
+			log->cqueue.tail = NULL;
+		tblk->flag &= ~tblkGC_QUEUE;
+		tblk->cqnext = 0;
+
+		if (tblk == log->flush_tblk) {
+			/* we can stop flushing the log now */
+			clear_bit(log_FLUSH, &log->flag);
+			log->flush_tblk = NULL;
+		}
+
+		jfs_info("lmPostGC: tblk = 0x%p, flag = 0x%x", tblk,
+			 tblk->flag);
+
+		if (!(tblk->xflag & COMMIT_FORCE))
+			/*
+			 * Hand tblk over to lazy commit thread
+			 */
+			txLazyUnlock(tblk);
+		else {
+			/* state transition: COMMIT -> COMMITTED */
+			tblk->flag |= tblkGC_COMMITTED;
+
+			if (tblk->flag & tblkGC_READY)
+				log->gcrtc--;
+
+			LOGGC_WAKEUP(tblk);
+		}
+
+		/* was page full before pageout ?
+		 * (and this is the last tblk bound with the page)
+		 */
+		if (tblk->flag & tblkGC_FREE)
+			lbmFree(bp);
+		/* did page become full after pageout ?
+		 * (and this is the last tblk bound with the page)
+		 */
+		else if (tblk->flag & tblkGC_EOP) {
+			/* finalize the page */
+			lp = (struct logpage *) bp->l_ldata;
+			bp->l_ceor = bp->l_eor;
+			lp->h.eor = lp->t.eor = cpu_to_le16(bp->l_eor);
+			jfs_info("lmPostGC: calling lbmWrite");
+			lbmWrite(log, bp, lbmWRITE | lbmRELEASE | lbmFREE,
+				 1);
+		}
+
+	}
+
+	/* are there any transactions who have entered lnGroupCommit()
+	 * (whose COMMITs are after that of the last log page written.
+	 * They are waiting for new group commit (above at (SLEEP 1))
+	 * or lazy transactions are on a full (queued) log page,
+	 * select the latest ready transaction as new group leader and
+	 * wake her up to lead her group.
+	 */
+	if ((tblk = log->cqueue.head) &&
+	    ((log->gcrtc > 0) || (tblk->bp->l_wqnext != NULL) ||
+	     test_bit(log_FLUSH, &log->flag)))
+		/*
+		 * Call lmGCwrite with new group leader
+		 */
+		lmGCwrite(log, 1);
+
+	/* no transaction are ready yet (transactions are only just
+	 * queued (GC_QUEUE) and not entered for group commit yet).
+	 * the first transaction entering group commit
+	 * will elect herself as new group leader.
+	 */
+	else
+		log->cflag &= ~logGC_PAGEOUT;
+
+	//LOGGC_UNLOCK(log);
+	spin_unlock_irqrestore(&log->gclock, flags);
+	return;
+}
+
+/*
+ * NAME:	lmLogSync()
+ *
+ * FUNCTION:	write log SYNCPT record for specified log
+ *	if new sync address is available
+ *	(normally the case if sync() is executed by back-ground
+ *	process).
+ *	if not, explicitly run jfs_blogsync() to initiate
+ *	getting of new sync address.
+ *	calculate new value of i_nextsync which determines when
+ *	this code is called again.
+ *
+ *	this is called only from lmLog().
+ *
+ * PARAMETER:	ip	- pointer to logs inode.
+ *
+ * RETURN:	0
+ *			
+ * serialization: LOG_LOCK() held on entry/exit
+ */
+static int lmLogSync(struct jfs_log * log, int nosyncwait)
+{
+	int logsize;
+	int written;		/* written since last syncpt */
+	int free;		/* free space left available */
+	int delta;		/* additional delta to write normally */
+	int more;		/* additional write granted */
+	struct lrd lrd;
+	int lsn;
+	struct logsyncblk *lp;
+
+	/*
+	 *      forward syncpt
+	 */
+	/* if last sync is same as last syncpt,
+	 * invoke sync point forward processing to update sync.
+	 */
+
+	if (log->sync == log->syncpt) {
+		LOGSYNC_LOCK(log);
+		/* ToDo: push dirty metapages out to disk */
+//              bmLogSync(log);
+
+		if (list_empty(&log->synclist))
+			log->sync = log->lsn;
+		else {
+			lp = list_entry(log->synclist.next,
+					struct logsyncblk, synclist);
+			log->sync = lp->lsn;
+		}
+		LOGSYNC_UNLOCK(log);
+
+	}
+
+	/* if sync is different from last syncpt,
+	 * write a SYNCPT record with syncpt = sync.
+	 * reset syncpt = sync
+	 */
+	if (log->sync != log->syncpt) {
+		struct super_block *sb = log->sb;
+		struct jfs_sb_info *sbi = JFS_SBI(sb);
+
+		/*
+		 * We need to make sure all of the "written" metapages
+		 * actually make it to disk
+		 */
+		fsync_inode_data_buffers(sbi->ipbmap);
+		fsync_inode_data_buffers(sbi->ipimap);
+		fsync_inode_data_buffers(sb->s_bdev->bd_inode);
+
+		lrd.logtid = 0;
+		lrd.backchain = 0;
+		lrd.type = cpu_to_le16(LOG_SYNCPT);
+		lrd.length = 0;
+		lrd.log.syncpt.sync = cpu_to_le32(log->sync);
+		lsn = lmWriteRecord(log, NULL, &lrd, NULL);
+
+		log->syncpt = log->sync;
+	} else
+		lsn = log->lsn;
+
+	/*
+	 *      setup next syncpt trigger (SWAG)
+	 */
+	logsize = log->logsize;
+
+	logdiff(written, lsn, log);
+	free = logsize - written;
+	delta = LOGSYNC_DELTA(logsize);
+	more = min(free / 2, delta);
+	if (more < 2 * LOGPSIZE) {
+		jfs_warn("\n ... Log Wrap ... Log Wrap ... Log Wrap ...\n");
+		/*
+		 *      log wrapping
+		 *
+		 * option 1 - panic ? No.!
+		 * option 2 - shutdown file systems
+		 *            associated with log ?
+		 * option 3 - extend log ?
+		 */
+		/*
+		 * option 4 - second chance
+		 *
+		 * mark log wrapped, and continue.
+		 * when all active transactions are completed,
+		 * mark log vaild for recovery.
+		 * if crashed during invalid state, log state
+		 * implies invald log, forcing fsck().
+		 */
+		/* mark log state log wrap in log superblock */
+		/* log->state = LOGWRAP; */
+
+		/* reset sync point computation */
+		log->syncpt = log->sync = lsn;
+		log->nextsync = delta;
+	} else
+		/* next syncpt trigger = written + more */
+		log->nextsync = written + more;
+
+	/* return if lmLogSync() from outside of transaction, e.g., sync() */
+	if (nosyncwait)
+		return lsn;
+
+	/* if number of bytes written from last sync point is more
+	 * than 1/4 of the log size, stop new transactions from
+	 * starting until all current transactions are completed
+	 * by setting syncbarrier flag.
+	 */
+	if (written > LOGSYNC_BARRIER(logsize) && logsize > 32 * LOGPSIZE) {
+		set_bit(log_SYNCBARRIER, &log->flag);
+		jfs_info("log barrier on: lsn=0x%x syncpt=0x%x", lsn,
+			 log->syncpt);
+		/*
+		 * We may have to initiate group commit
+		 */
+		jfs_flush_journal(log, 0);
+	}
+
+	return lsn;
+}
+
+
+/*
+ * NAME:	lmLogOpen()
+ *
+ * FUNCTION:    open the log on first open;
+ *	insert filesystem in the active list of the log.
+ *
+ * PARAMETER:	ipmnt	- file system mount inode
+ *		iplog 	- log inode (out)
+ *
+ * RETURN:
+ *
+ * serialization:
+ */
+int lmLogOpen(struct super_block *sb, struct jfs_log ** logptr)
+{
+	int rc;
+	struct block_device *bdev;
+	struct jfs_log *log;
+
+	if (!(log = kmalloc(sizeof(struct jfs_log), GFP_KERNEL)))
+		return -ENOMEM;
+	memset(log, 0, sizeof(struct jfs_log));
+	init_waitqueue_head(&log->syncwait);
+
+	log->sb = sb;		/* This should be a list */
+
+	if (!(JFS_SBI(sb)->mntflag & JFS_INLINELOG))
+		goto externalLog;
+
+	/*
+	 *      in-line log in host file system
+	 *
+	 * file system to log have 1-to-1 relationship;
+	 */
+
+	set_bit(log_INLINELOG, &log->flag);
+	log->bdev = sb->s_bdev;
+	log->base = addressPXD(&JFS_SBI(sb)->logpxd);
+	log->size = lengthPXD(&JFS_SBI(sb)->logpxd) >>
+	    (L2LOGPSIZE - sb->s_blocksize_bits);
+	log->l2bsize = sb->s_blocksize_bits;
+	ASSERT(L2LOGPSIZE >= sb->s_blocksize_bits);
+
+	/*
+	 * initialize log.
+	 */
+	if ((rc = lmLogInit(log)))
+		goto free;
+	goto out;
+
+	/*
+	 *      external log as separate logical volume
+	 *
+	 * file systems to log may have n-to-1 relationship;
+	 */
+      externalLog:
+
+	/*
+	 * TODO: Check for already opened log devices
+	 */
+
+	if (!(bdev = bdget(kdev_t_to_nr(JFS_SBI(sb)->logdev)))) {
+		rc = -ENODEV;
+		goto free;
+	}
+
+	if ((rc = blkdev_get(bdev, FMODE_READ|FMODE_WRITE, 0, BDEV_FS))) {
+		goto free;
+	}
+
+	log->bdev = bdev;
+	memcpy(log->uuid, JFS_SBI(sb)->loguuid, sizeof(log->uuid));
+	
+	/*
+	 * initialize log:
+	 */
+	if ((rc = lmLogInit(log)))
+		goto close;
+
+	/*
+	 * add file system to log active file system list
+	 */
+	if ((rc = lmLogFileSystem(log, JFS_SBI(sb)->uuid, 1)))
+		goto shutdown;
+
+      out:
+	*logptr = log;
+	return 0;
+
+	/*
+	 *      unwind on error
+	 */
+      shutdown:		/* unwind lbmLogInit() */
+	lbmLogShutdown(log);
+
+      close:		/* close external log device */
+	blkdev_put(bdev, BDEV_FS);
+
+      free:		/* free log descriptor */
+	kfree(log);
+
+	jfs_warn("lmLogOpen: exit(%d)", rc);
+	return rc;
+}
+
+
+/*
+ * NAME:	lmLogInit()
+ *
+ * FUNCTION:	log initialization at first log open.
+ *
+ *	logredo() (or logformat()) should have been run previously.
+ *	initialize the log inode from log superblock.
+ *	set the log state in the superblock to LOGMOUNT and
+ *	write SYNCPT log record.
+ *		
+ * PARAMETER:	log	- log structure
+ *
+ * RETURN:	0	- if ok
+ *		-EINVAL	- bad log magic number or superblock dirty
+ *		error returned from logwait()
+ *			
+ * serialization: single first open thread
+ */
+int lmLogInit(struct jfs_log * log)
+{
+	int rc = 0;
+	struct lrd lrd;
+	struct logsuper *logsuper;
+	struct lbuf *bpsuper;
+	struct lbuf *bp;
+	struct logpage *lp;
+	int lsn;
+
+	jfs_info("lmLogInit: log:0x%p", log);
+
+	/*
+	 * log inode is overlaid on generic inode where
+	 * dinode have been zeroed out by iRead();
+	 */
+
+	/*
+	 * initialize log i/o
+	 */
+	if ((rc = lbmLogInit(log)))
+		return rc;
+
+	/*
+	 * validate log superblock
+	 */
+
+
+	if (!test_bit(log_INLINELOG, &log->flag))
+		log->l2bsize = 12;	/* XXX kludge alert XXX */
+	if ((rc = lbmRead(log, 1, &bpsuper)))
+		goto errout10;
+
+	logsuper = (struct logsuper *) bpsuper->l_ldata;
+
+	if (logsuper->magic != cpu_to_le32(LOGMAGIC)) {
+		jfs_warn("*** Log Format Error ! ***");
+		rc = -EINVAL;
+		goto errout20;
+	}
+
+	/* logredo() should have been run successfully. */
+	if (logsuper->state != cpu_to_le32(LOGREDONE)) {
+		jfs_warn("*** Log Is Dirty ! ***");
+		rc = -EINVAL;
+		goto errout20;
+	}
+
+	/* initialize log inode from log superblock */
+	if (test_bit(log_INLINELOG,&log->flag)) {
+		if (log->size != le32_to_cpu(logsuper->size)) {
+			rc = -EINVAL;
+			goto errout20;
+		}
+		jfs_info("lmLogInit: inline log:0x%p base:0x%Lx size:0x%x",
+			log, (unsigned long long) log->base, log->size);
+	} else {
+		if (memcmp(logsuper->uuid, log->uuid, 16)) {
+			jfs_warn("wrong uuid on JFS log device");
+			goto errout20;
+		}
+		log->size = le32_to_cpu(logsuper->size);
+		log->l2bsize = le32_to_cpu(logsuper->l2bsize);
+		jfs_info("lmLogInit: external log:0x%p base:0x%Lx size:0x%x",
+			log, (unsigned long long) log->base, log->size);
+	}
+
+	log->page = le32_to_cpu(logsuper->end) / LOGPSIZE;
+	log->eor = le32_to_cpu(logsuper->end) - (LOGPSIZE * log->page);
+
+	/* check for disabled journaling to disk */
+	if (JFS_SBI(log->sb)->flag & JFS_NOINTEGRITY) {
+		log->no_integrity = 1;
+		log->ni_page = log->page;
+		log->ni_eor = log->eor;
+	}
+	else
+		log->no_integrity = 0;
+
+	/*
+	 * initialize for log append write mode
+	 */
+	/* establish current/end-of-log page/buffer */
+	if ((rc = lbmRead(log, log->page, &bp)))
+		goto errout20;
+
+	lp = (struct logpage *) bp->l_ldata;
+
+	jfs_info("lmLogInit: lsn:0x%x page:%d eor:%d:%d",
+		 le32_to_cpu(logsuper->end), log->page, log->eor,
+		 le16_to_cpu(lp->h.eor));
+
+//      ASSERT(log->eor == lp->h.eor);
+
+	log->bp = bp;
+	bp->l_pn = log->page;
+	bp->l_eor = log->eor;
+
+	/* initialize the group commit serialization lock */
+	LOGGC_LOCK_INIT(log);
+
+	/* if current page is full, move on to next page */
+	if (log->eor >= LOGPSIZE - LOGPTLRSIZE)
+		lmNextPage(log);
+
+	/* allocate/initialize the log write serialization lock */
+	LOG_LOCK_INIT(log);
+
+	/*
+	 * initialize log syncpoint
+	 */
+	/*
+	 * write the first SYNCPT record with syncpoint = 0
+	 * (i.e., log redo up to HERE !);
+	 * remove current page from lbm write queue at end of pageout
+	 * (to write log superblock update), but do not release to freelist;
+	 */
+	lrd.logtid = 0;
+	lrd.backchain = 0;
+	lrd.type = cpu_to_le16(LOG_SYNCPT);
+	lrd.length = 0;
+	lrd.log.syncpt.sync = 0;
+	lsn = lmWriteRecord(log, NULL, &lrd, NULL);
+	bp = log->bp;
+	bp->l_ceor = bp->l_eor;
+	lp = (struct logpage *) bp->l_ldata;
+	lp->h.eor = lp->t.eor = cpu_to_le16(bp->l_eor);
+	lbmWrite(log, bp, lbmWRITE | lbmSYNC, 0);
+	if ((rc = lbmIOWait(bp, 0)))
+		goto errout30;
+
+	/* initialize logsync parameters */
+	log->logsize = (log->size - 2) << L2LOGPSIZE;
+	log->lsn = lsn;
+	log->syncpt = lsn;
+	log->sync = log->syncpt;
+	log->nextsync = LOGSYNC_DELTA(log->logsize);
+
+	jfs_info("lmLogInit: lsn:0x%x syncpt:0x%x sync:0x%x",
+		 log->lsn, log->syncpt, log->sync);
+
+	LOGSYNC_LOCK_INIT(log);
+
+	INIT_LIST_HEAD(&log->synclist);
+
+	log->cqueue.head = log->cqueue.tail = NULL;
+	log->flush_tblk = NULL;
+
+	log->count = 0;
+
+	/*
+	 * initialize for lazy/group commit
+	 */
+	log->clsn = lsn;
+
+	/*
+	 * update/write superblock
+	 */
+	logsuper->state = cpu_to_le32(LOGMOUNT);
+	log->serial = le32_to_cpu(logsuper->serial) + 1;
+	logsuper->serial = cpu_to_le32(log->serial);
+	lbmDirectWrite(log, bpsuper, lbmWRITE | lbmRELEASE | lbmSYNC);
+	if ((rc = lbmIOWait(bpsuper, lbmFREE)))
+		goto errout30;
+
+	return 0;
+
+	/*
+	 *      unwind on error
+	 */
+      errout30:		/* release log page */
+	log->wqueue = NULL;
+	bp->l_wqnext = NULL;
+	lbmFree(bp);
+
+      errout20:		/* release log superblock */
+	lbmFree(bpsuper);
+
+      errout10:		/* unwind lbmLogInit() */
+	lbmLogShutdown(log);
+
+	jfs_warn("lmLogInit: exit(%d)", rc);
+	return rc;
+}
+
+
+/*
+ * NAME:	lmLogClose()
+ *
+ * FUNCTION:	remove file system <ipmnt> from active list of log <iplog>
+ *		and close it on last close.
+ *
+ * PARAMETER:	sb	- superblock
+ *		log	- log inode
+ *
+ * RETURN:	errors from subroutines
+ *
+ * serialization:
+ */
+int lmLogClose(struct super_block *sb, struct jfs_log * log)
+{
+	int rc;
+
+	jfs_info("lmLogClose: log:0x%p", log);
+
+	if (!test_bit(log_INLINELOG, &log->flag))
+		goto externalLog;
+	
+	/*
+	 *      in-line log in host file system
+	 */
+	rc = lmLogShutdown(log);
+	goto out;
+
+	/*
+	 *      external log as separate logical volume
+	 */
+      externalLog:
+	lmLogFileSystem(log, JFS_SBI(sb)->uuid, 0);
+	rc = lmLogShutdown(log);
+	blkdev_put(log->bdev, BDEV_FS);
+
+      out:
+	kfree(log);
+	jfs_info("lmLogClose: exit(%d)", rc);
+	return rc;
+}
+
+
+/*
+ * NAME:	jfs_flush_journal()
+ *
+ * FUNCTION:	initiate write of any outstanding transactions to the journal
+ *		and optionally wait until they are all written to disk
+ *
+ *		wait == 0  flush until latest txn is committed, don't wait
+ *		wait == 1  flush until latest txn is committed, wait
+ *		wait > 1   flush until all txn's are complete, wait
+ */
+void jfs_flush_journal(struct jfs_log *log, int wait)
+{
+	int i;
+	struct tblock *target;
+
+	if (!log)
+		/* jfs_write_inode may call us during read-only mount */
+		return;
+
+	jfs_info("jfs_flush_journal: log:0x%p wait=%d", log, wait);
+
+	LOGGC_LOCK(log);
+
+	target = log->cqueue.head;
+
+	if (target) {
+		/*
+		 * This ensures that we will keep writing to the journal as long
+		 * as there are unwritten commit records
+		 */
+
+		if (test_bit(log_FLUSH, &log->flag)) {
+			/*
+			 * We're already flushing.
+			 * if flush_tblk is NULL, we are flushing everything,
+			 * so leave it that way.  Otherwise, update it to the
+			 * latest transaction
+			 */
+			if (log->flush_tblk)
+				log->flush_tblk = target;
+		} else {
+			/* Only flush until latest transaction is committed */
+			log->flush_tblk = target;
+			set_bit(log_FLUSH, &log->flag);
+
+			/*
+			 * Initiate I/O on outstanding transactions
+			 */
+			if (!(log->cflag & logGC_PAGEOUT)) {
+				log->cflag |= logGC_PAGEOUT;
+				lmGCwrite(log, 0);
+			}
+		}
+	}
+	if ((wait > 1) || test_bit(log_SYNCBARRIER, &log->flag)) {
+		/* Flush until all activity complete */
+		set_bit(log_FLUSH, &log->flag);
+		log->flush_tblk = NULL;
+	}
+
+	if (wait && target && !(target->flag & tblkGC_COMMITTED)) {
+		DECLARE_WAITQUEUE(__wait, current);
+
+		add_wait_queue(&target->gcwait, &__wait);
+		set_current_state(TASK_UNINTERRUPTIBLE);
+		LOGGC_UNLOCK(log);
+		schedule();
+		current->state = TASK_RUNNING;
+		LOGGC_LOCK(log);
+		remove_wait_queue(&target->gcwait, &__wait);
+	}
+	LOGGC_UNLOCK(log);
+
+	if (wait < 2)
+		return;
+
+	/*
+	 * If there was recent activity, we may need to wait
+	 * for the lazycommit thread to catch up
+	 */
+	if (log->cqueue.head || !list_empty(&log->synclist)) {
+		for (i = 0; i < 800; i++) {	/* Too much? */
+			current->state = TASK_INTERRUPTIBLE;
+			schedule_timeout(HZ / 4);
+			if ((log->cqueue.head == NULL) &&
+			    list_empty(&log->synclist))
+				break;
+		}
+	}
+	assert(log->cqueue.head == NULL);
+	assert(list_empty(&log->synclist));
+	clear_bit(log_FLUSH, &log->flag);
+}
+
+/*
+ * NAME:	lmLogShutdown()
+ *
+ * FUNCTION:	log shutdown at last LogClose().
+ *
+ *		write log syncpt record.
+ *		update super block to set redone flag to 0.
+ *
+ * PARAMETER:	log	- log inode
+ *
+ * RETURN:	0	- success
+ *			
+ * serialization: single last close thread
+ */
+int lmLogShutdown(struct jfs_log * log)
+{
+	int rc;
+	struct lrd lrd;
+	int lsn;
+	struct logsuper *logsuper;
+	struct lbuf *bpsuper;
+	struct lbuf *bp;
+	struct logpage *lp;
+
+	jfs_info("lmLogShutdown: log:0x%p", log);
+
+	jfs_flush_journal(log, 2);
+
+	/*
+	 * We need to make sure all of the "written" metapages
+	 * actually make it to disk
+	 */
+	fsync_no_super(log->sb->s_dev);
+
+	/*
+	 * write the last SYNCPT record with syncpoint = 0
+	 * (i.e., log redo up to HERE !)
+	 */
+	lrd.logtid = 0;
+	lrd.backchain = 0;
+	lrd.type = cpu_to_le16(LOG_SYNCPT);
+	lrd.length = 0;
+	lrd.log.syncpt.sync = 0;
+	
+	/* check for disabled journaling to disk */
+	if (JFS_SBI(log->sb)->flag & JFS_NOINTEGRITY) {
+		log->no_integrity = 0;
+		log->page = log->ni_page;
+		log->eor = log->ni_eor;
+	}
+
+	lsn = lmWriteRecord(log, NULL, &lrd, NULL);
+	bp = log->bp;
+	lp = (struct logpage *) bp->l_ldata;
+	lp->h.eor = lp->t.eor = cpu_to_le16(bp->l_eor);
+	lbmWrite(log, log->bp, lbmWRITE | lbmRELEASE | lbmSYNC, 0);
+	lbmIOWait(log->bp, lbmFREE);
+
+	/*
+	 * synchronous update log superblock
+	 * mark log state as shutdown cleanly
+	 * (i.e., Log does not need to be replayed).
+	 */
+	if ((rc = lbmRead(log, 1, &bpsuper)))
+		goto out;
+
+	logsuper = (struct logsuper *) bpsuper->l_ldata;
+	logsuper->state = cpu_to_le32(LOGREDONE);
+	logsuper->end = cpu_to_le32(lsn);
+	lbmDirectWrite(log, bpsuper, lbmWRITE | lbmRELEASE | lbmSYNC);
+	rc = lbmIOWait(bpsuper, lbmFREE);
+
+	jfs_info("lmLogShutdown: lsn:0x%x page:%d eor:%d",
+		 lsn, log->page, log->eor);
+
+      out:    
+	/*
+	 * shutdown per log i/o
+	 */
+	lbmLogShutdown(log);
+
+	if (rc) {
+		jfs_warn("lmLogShutdown: exit(%d)", rc);
+	}
+	return rc;
+}
+
+
+/*
+ * NAME:	lmLogFileSystem()
+ *
+ * FUNCTION:	insert (<activate> = true)/remove (<activate> = false)
+ *	file system into/from log active file system list.
+ *
+ * PARAMETE:	log	- pointer to logs inode.
+ *		fsdev	- kdev_t of filesystem.
+ *		serial  - pointer to returned log serial number
+ *		activate - insert/remove device from active list.
+ *
+ * RETURN:	0	- success
+ *		errors returned by vms_iowait().
+ */
+static int lmLogFileSystem(struct jfs_log * log, char *uuid, int activate)
+{
+	int rc = 0;
+	int i;
+	struct logsuper *logsuper;
+	struct lbuf *bpsuper;
+
+	/*
+	 * insert/remove file system device to log active file system list.
+	 */
+	if ((rc = lbmRead(log, 1, &bpsuper)))
+		return rc;
+
+	logsuper = (struct logsuper *) bpsuper->l_ldata;
+	if (activate) {
+		for (i = 0; i < MAX_ACTIVE; i++)
+			if (!memcmp(logsuper->active[i].uuid, NULL_UUID, 16)) {
+				memcpy(logsuper->active[i].uuid, uuid, 16);
+				break;
+			}
+		if (i == MAX_ACTIVE) {
+			jfs_warn("Too many file systems sharing journal!");
+			lbmFree(bpsuper);
+			return -EMFILE;	/* Is there a better rc? */
+		}
+	} else {
+		for (i = 0; i < MAX_ACTIVE; i++)
+			if (!memcmp(logsuper->active[i].uuid, uuid, 16)) {
+				memcpy(logsuper->active[i].uuid, NULL_UUID, 16);
+				break;
+			}
+		if (i == MAX_ACTIVE) {
+			jfs_warn("Somebody stomped on the journal!");
+			lbmFree(bpsuper);
+			return -EIO;
+		}
+		
+	}
+
+	/*
+	 * synchronous write log superblock:
+	 *
+	 * write sidestream bypassing write queue:
+	 * at file system mount, log super block is updated for
+	 * activation of the file system before any log record
+	 * (MOUNT record) of the file system, and at file system
+	 * unmount, all meta data for the file system has been
+	 * flushed before log super block is updated for deactivation
+	 * of the file system.
+	 */
+	lbmDirectWrite(log, bpsuper, lbmWRITE | lbmRELEASE | lbmSYNC);
+	rc = lbmIOWait(bpsuper, lbmFREE);
+
+	return rc;
+}
+
+/*
+ *		log buffer manager (lbm)
+ *		------------------------
+ *
+ * special purpose buffer manager supporting log i/o requirements.
+ *
+ * per log write queue:
+ * log pageout occurs in serial order by fifo write queue and
+ * restricting to a single i/o in pregress at any one time.
+ * a circular singly-linked list
+ * (log->wrqueue points to the tail, and buffers are linked via
+ * bp->wrqueue field), and
+ * maintains log page in pageout ot waiting for pageout in serial pageout.
+ */
+
+/*
+ *	lbmLogInit()
+ *
+ * initialize per log I/O setup at lmLogInit()
+ */
+static int lbmLogInit(struct jfs_log * log)
+{				/* log inode */
+	int i;
+	struct lbuf *lbuf;
+
+	jfs_info("lbmLogInit: log:0x%p", log);
+
+	/* initialize current buffer cursor */
+	log->bp = NULL;
+
+	/* initialize log device write queue */
+	log->wqueue = NULL;
+
+	/*
+	 * Each log has its own buffer pages allocated to it.  These are
+	 * not managed by the page cache.  This ensures that a transaction
+	 * writing to the log does not block trying to allocate a page from
+	 * the page cache (for the log).  This would be bad, since page
+	 * allocation waits on the kswapd thread that may be committing inodes
+	 * which would cause log activity.  Was that clear?  I'm trying to
+	 * avoid deadlock here.
+	 */
+	init_waitqueue_head(&log->free_wait);
+
+	log->lbuf_free = NULL;
+
+	for (i = 0; i < LOGPAGES; i++) {
+		lbuf = kmalloc(sizeof(struct lbuf), GFP_KERNEL);
+		if (lbuf == 0)
+			goto error;
+		lbuf->l_bh.b_data = lbuf->l_ldata =
+		    (char *) get_zeroed_page(GFP_KERNEL);
+		if (lbuf->l_ldata == 0) {
+			kfree(lbuf);
+			goto error;
+		}
+		lbuf->l_log = log;
+		init_waitqueue_head(&lbuf->l_ioevent);
+
+		lbuf->l_bh.b_size = LOGPSIZE;
+		lbuf->l_bh.b_dev = to_kdev_t(log->bdev->bd_dev);
+		lbuf->l_bh.b_end_io = lbmIODone;
+		lbuf->l_bh.b_private = lbuf;
+		lbuf->l_bh.b_page = virt_to_page(lbuf->l_ldata);
+		lbuf->l_bh.b_state = 0;
+		init_waitqueue_head(&lbuf->l_bh.b_wait);
+
+		lbuf->l_freelist = log->lbuf_free;
+		log->lbuf_free = lbuf;
+	}
+
+	return (0);
+
+      error:
+	lbmLogShutdown(log);
+	return -ENOMEM;
+}
+
+
+/*
+ *	lbmLogShutdown()
+ *
+ * finalize per log I/O setup at lmLogShutdown()
+ */
+static void lbmLogShutdown(struct jfs_log * log)
+{
+	struct lbuf *lbuf;
+
+	jfs_info("lbmLogShutdown: log:0x%p", log);
+
+	lbuf = log->lbuf_free;
+	while (lbuf) {
+		struct lbuf *next = lbuf->l_freelist;
+		free_page((unsigned long) lbuf->l_ldata);
+		kfree(lbuf);
+		lbuf = next;
+	}
+
+	log->bp = NULL;
+}
+
+
+/*
+ *	lbmAllocate()
+ *
+ * allocate an empty log buffer
+ */
+static struct lbuf *lbmAllocate(struct jfs_log * log, int pn)
+{
+	struct lbuf *bp;
+	unsigned long flags;
+
+	/*
+	 * recycle from log buffer freelist if any
+	 */
+	LCACHE_LOCK(flags);
+	LCACHE_SLEEP_COND(log->free_wait, (bp = log->lbuf_free), flags);
+	log->lbuf_free = bp->l_freelist;
+	LCACHE_UNLOCK(flags);
+
+	bp->l_flag = 0;
+
+	bp->l_wqnext = NULL;
+	bp->l_freelist = NULL;
+
+	bp->l_pn = pn;
+	bp->l_blkno = log->base + (pn << (L2LOGPSIZE - log->l2bsize));
+	bp->l_bh.b_blocknr = bp->l_blkno;
+	bp->l_ceor = 0;
+
+	return bp;
+}
+
+
+/*
+ *	lbmFree()
+ *
+ * release a log buffer to freelist
+ */
+static void lbmFree(struct lbuf * bp)
+{
+	unsigned long flags;
+
+	LCACHE_LOCK(flags);
+
+	lbmfree(bp);
+
+	LCACHE_UNLOCK(flags);
+}
+
+static void lbmfree(struct lbuf * bp)
+{
+	struct jfs_log *log = bp->l_log;
+
+	assert(bp->l_wqnext == NULL);
+
+	/*
+	 * return the buffer to head of freelist
+	 */
+	bp->l_freelist = log->lbuf_free;
+	log->lbuf_free = bp;
+
+	wake_up(&log->free_wait);
+	return;
+}
+
+
+/*
+ * NAME:	lbmRedrive
+ *
+ * FUNCTION:	add a log buffer to the the log redrive list
+ *
+ * PARAMETER:
+ *     bp	- log buffer
+ *
+ * NOTES:
+ *	Takes log_redrive_lock.
+ */
+static inline void lbmRedrive(struct lbuf *bp)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&log_redrive_lock, flags);
+	bp->l_redrive_next = log_redrive_list;
+	log_redrive_list = bp;
+	spin_unlock_irqrestore(&log_redrive_lock, flags);
+
+	wake_up(&jfs_IO_thread_wait);
+}
+
+
+/*
+ *	lbmRead()
+ */
+static int lbmRead(struct jfs_log * log, int pn, struct lbuf ** bpp)
+{
+	struct lbuf *bp;
+
+	/*
+	 * allocate a log buffer
+	 */
+	*bpp = bp = lbmAllocate(log, pn);
+	jfs_info("lbmRead: bp:0x%p pn:0x%x", bp, pn);
+
+	bp->l_flag |= lbmREAD;
+	bp->l_bh.b_reqnext = NULL;
+	clear_bit(BH_Uptodate, &bp->l_bh.b_state);
+	lock_buffer(&bp->l_bh);
+	set_bit(BH_Mapped, &bp->l_bh.b_state);
+	set_bit(BH_Req, &bp->l_bh.b_state);
+	bp->l_bh.b_rdev = bp->l_bh.b_dev;
+	bp->l_bh.b_rsector = bp->l_blkno << (log->l2bsize - 9);
+	generic_make_request(READ, &bp->l_bh);
+	run_task_queue(&tq_disk);
+
+	wait_event(bp->l_ioevent, (bp->l_flag != lbmREAD));
+
+	return 0;
+}
+
+
+/*
+ *	lbmWrite()
+ *
+ * buffer at head of pageout queue stays after completion of
+ * partial-page pageout and redriven by explicit initiation of
+ * pageout by caller until full-page pageout is completed and
+ * released.
+ *
+ * device driver i/o done redrives pageout of new buffer at
+ * head of pageout queue when current buffer at head of pageout
+ * queue is released at the completion of its full-page pageout.
+ *
+ * LOGGC_LOCK() serializes lbmWrite() by lmNextPage() and lmGroupCommit().
+ * LCACHE_LOCK() serializes xflag between lbmWrite() and lbmIODone()
+ */
+static void lbmWrite(struct jfs_log * log, struct lbuf * bp, int flag,
+		     int cant_block)
+{
+	struct lbuf *tail;
+	unsigned long flags;
+
+	jfs_info("lbmWrite: bp:0x%p flag:0x%x pn:0x%x", bp, flag, bp->l_pn);
+
+	/* map the logical block address to physical block address */
+	bp->l_blkno =
+	    log->base + (bp->l_pn << (L2LOGPSIZE - log->l2bsize));
+
+	LCACHE_LOCK(flags);		/* disable+lock */
+
+	/*
+	 * initialize buffer for device driver
+	 */
+	bp->l_flag = flag;
+
+	/*
+	 *      insert bp at tail of write queue associated with log
+	 *
+	 * (request is either for bp already/currently at head of queue
+	 * or new bp to be inserted at tail)
+	 */
+	tail = log->wqueue;
+
+	/* is buffer not already on write queue ? */
+	if (bp->l_wqnext == NULL) {
+		/* insert at tail of wqueue */
+		if (tail == NULL) {
+			log->wqueue = bp;
+			bp->l_wqnext = bp;
+		} else {
+			log->wqueue = bp;
+			bp->l_wqnext = tail->l_wqnext;
+			tail->l_wqnext = bp;
+		}
+
+		tail = bp;
+	}
+
+	/* is buffer at head of wqueue and for write ? */
+	if ((bp != tail->l_wqnext) || !(flag & lbmWRITE)) {
+		LCACHE_UNLOCK(flags);	/* unlock+enable */
+		return;
+	}
+
+	LCACHE_UNLOCK(flags);	/* unlock+enable */
+
+	if (cant_block)
+		lbmRedrive(bp);
+	else if (flag & lbmSYNC)
+		lbmStartIO(bp);
+	else {
+		LOGGC_UNLOCK(log);
+		lbmStartIO(bp);
+		LOGGC_LOCK(log);
+	}
+}
+
+
+/*
+ *	lbmDirectWrite()
+ *
+ * initiate pageout bypassing write queue for sidestream
+ * (e.g., log superblock) write;
+ */
+static void lbmDirectWrite(struct jfs_log * log, struct lbuf * bp, int flag)
+{
+	jfs_info("lbmDirectWrite: bp:0x%p flag:0x%x pn:0x%x",
+		 bp, flag, bp->l_pn);
+
+	/*
+	 * initialize buffer for device driver
+	 */
+	bp->l_flag = flag | lbmDIRECT;
+
+	/* map the logical block address to physical block address */
+	bp->l_blkno =
+	    log->base + (bp->l_pn << (L2LOGPSIZE - log->l2bsize));
+
+	/*
+	 *      initiate pageout of the page
+	 */
+	lbmStartIO(bp);
+}
+
+
+/*
+ * NAME:	lbmStartIO()
+ *
+ * FUNCTION:	Interface to DD strategy routine
+ *
+ * RETURN:      none
+ *
+ * serialization: LCACHE_LOCK() is NOT held during log i/o;
+ */
+static void lbmStartIO(struct lbuf * bp)
+{
+	jfs_info("lbmStartIO");
+
+	bp->l_bh.b_reqnext = NULL;
+	set_bit(BH_Dirty, &bp->l_bh.b_state);
+//      lock_buffer(&bp->l_bh);
+	assert(!test_bit(BH_Lock, &bp->l_bh.b_state));
+	set_bit(BH_Lock, &bp->l_bh.b_state);
+
+	set_bit(BH_Mapped, &bp->l_bh.b_state);
+	set_bit(BH_Req, &bp->l_bh.b_state);
+	bp->l_bh.b_rdev = bp->l_bh.b_dev;
+	bp->l_bh.b_rsector = bp->l_blkno << (bp->l_log->l2bsize - 9);
+
+	if (bp->l_log->no_integrity)
+		/* don't really do I/O */
+		lbmIODone(&bp->l_bh, 1);
+	 else
+		generic_make_request(WRITE, &bp->l_bh);
+
+	INCREMENT(lmStat.submitted);
+	run_task_queue(&tq_disk);
+}
+
+
+/*
+ *	lbmIOWait()
+ */
+static int lbmIOWait(struct lbuf * bp, int flag)
+{
+	unsigned long flags;
+	int rc = 0;
+
+	jfs_info("lbmIOWait1: bp:0x%p flag:0x%x:0x%x", bp, bp->l_flag, flag);
+
+	LCACHE_LOCK(flags);		/* disable+lock */
+
+	LCACHE_SLEEP_COND(bp->l_ioevent, (bp->l_flag & lbmDONE), flags);
+
+	rc = (bp->l_flag & lbmERROR) ? -EIO : 0;
+
+	if (flag & lbmFREE)
+		lbmfree(bp);
+
+	LCACHE_UNLOCK(flags);	/* unlock+enable */
+
+	jfs_info("lbmIOWait2: bp:0x%p flag:0x%x:0x%x", bp, bp->l_flag, flag);
+	return rc;
+}
+
+/*
+ *	lbmIODone()
+ *
+ * executed at INTIODONE level
+ */
+static void lbmIODone(struct buffer_head *bh, int uptodate)
+{
+	struct lbuf *bp = bh->b_private;
+	struct lbuf *nextbp, *tail;
+	struct jfs_log *log;
+	unsigned long flags;
+
+	/*
+	 * get back jfs buffer bound to the i/o buffer
+	 */
+	jfs_info("lbmIODone: bp:0x%p flag:0x%x", bp, bp->l_flag);
+
+	LCACHE_LOCK(flags);		/* disable+lock */
+
+	unlock_buffer(&bp->l_bh);
+	bp->l_flag |= lbmDONE;
+
+	if (!uptodate) {
+		bp->l_flag |= lbmERROR;
+
+		jfs_err("lbmIODone: I/O error in JFS log");
+	}
+
+	/*
+	 *      pagein completion
+	 */
+	if (bp->l_flag & lbmREAD) {
+		bp->l_flag &= ~lbmREAD;
+
+		LCACHE_UNLOCK(flags);	/* unlock+enable */
+
+		/* wakeup I/O initiator */
+		LCACHE_WAKEUP(&bp->l_ioevent);
+
+		return;
+	}
+
+	/*
+	 *      pageout completion
+	 *
+	 * the bp at the head of write queue has completed pageout.
+	 *
+	 * if single-commit/full-page pageout, remove the current buffer
+	 * from head of pageout queue, and redrive pageout with
+	 * the new buffer at head of pageout queue;
+	 * otherwise, the partial-page pageout buffer stays at
+	 * the head of pageout queue to be redriven for pageout
+	 * by lmGroupCommit() until full-page pageout is completed.
+	 */
+	bp->l_flag &= ~lbmWRITE;
+	INCREMENT(lmStat.pagedone);
+
+	/* update committed lsn */
+	log = bp->l_log;
+	log->clsn = (bp->l_pn << L2LOGPSIZE) + bp->l_ceor;
+
+	if (bp->l_flag & lbmDIRECT) {
+		LCACHE_WAKEUP(&bp->l_ioevent);
+		LCACHE_UNLOCK(flags);
+		return;
+	}
+
+	tail = log->wqueue;
+
+	/* single element queue */
+	if (bp == tail) {
+		/* remove head buffer of full-page pageout
+		 * from log device write queue
+		 */
+		if (bp->l_flag & lbmRELEASE) {
+			log->wqueue = NULL;
+			bp->l_wqnext = NULL;
+		}
+	}
+	/* multi element queue */
+	else {
+		/* remove head buffer of full-page pageout
+		 * from log device write queue
+		 */
+		if (bp->l_flag & lbmRELEASE) {
+			nextbp = tail->l_wqnext = bp->l_wqnext;
+			bp->l_wqnext = NULL;
+
+			/*
+			 * redrive pageout of next page at head of write queue:
+			 * redrive next page without any bound tblk
+			 * (i.e., page w/o any COMMIT records), or
+			 * first page of new group commit which has been
+			 * queued after current page (subsequent pageout
+			 * is performed synchronously, except page without
+			 * any COMMITs) by lmGroupCommit() as indicated
+			 * by lbmWRITE flag;
+			 */
+			if (nextbp->l_flag & lbmWRITE) {
+				/*
+				 * We can't do the I/O at interrupt time.
+				 * The jfsIO thread can do it
+				 */
+				lbmRedrive(nextbp);
+			}
+		}
+	}
+
+	/*
+	 *      synchronous pageout:
+	 *
+	 * buffer has not necessarily been removed from write queue
+	 * (e.g., synchronous write of partial-page with COMMIT):
+	 * leave buffer for i/o initiator to dispose
+	 */
+	if (bp->l_flag & lbmSYNC) {
+		LCACHE_UNLOCK(flags);	/* unlock+enable */
+
+		/* wakeup I/O initiator */
+		LCACHE_WAKEUP(&bp->l_ioevent);
+	}
+
+	/*
+	 *      Group Commit pageout:
+	 */
+	else if (bp->l_flag & lbmGC) {
+		LCACHE_UNLOCK(flags);
+		lmPostGC(bp);
+	}
+
+	/*
+	 *      asynchronous pageout:
+	 *
+	 * buffer must have been removed from write queue:
+	 * insert buffer at head of freelist where it can be recycled
+	 */
+	else {
+		assert(bp->l_flag & lbmRELEASE);
+		assert(bp->l_flag & lbmFREE);
+		lbmfree(bp);
+
+		LCACHE_UNLOCK(flags);	/* unlock+enable */
+	}
+}
+
+int jfsIOWait(void *arg)
+{
+	struct lbuf *bp;
+
+	lock_kernel();
+
+	daemonize();
+	current->tty = NULL;
+	strcpy(current->comm, "jfsIO");
+
+	unlock_kernel();
+
+	spin_lock_irq(&current->sigmask_lock);
+	sigfillset(&current->blocked);
+	recalc_sigpending(current);
+	spin_unlock_irq(&current->sigmask_lock);
+
+	complete(&jfsIOwait);
+
+	do {
+		DECLARE_WAITQUEUE(wq, current);
+
+		spin_lock_irq(&log_redrive_lock);
+		while ((bp = log_redrive_list)) {
+			log_redrive_list = bp->l_redrive_next;
+			bp->l_redrive_next = NULL;
+			spin_unlock_irq(&log_redrive_lock);
+			lbmStartIO(bp);
+			spin_lock_irq(&log_redrive_lock);
+		}
+		add_wait_queue(&jfs_IO_thread_wait, &wq);
+		set_current_state(TASK_INTERRUPTIBLE);
+		spin_unlock_irq(&log_redrive_lock);
+		schedule();
+		current->state = TASK_RUNNING;
+		remove_wait_queue(&jfs_IO_thread_wait, &wq);
+	} while (!jfs_stop_threads);
+
+	jfs_info("jfsIOWait being killed!");
+	complete_and_exit(&jfsIOwait, 0);
+}
+
+/*
+ * NAME:	lmLogFormat()/jfs_logform()
+ *
+ * FUNCTION:	format file system log
+ *
+ * PARAMETERS:
+ *      log	- volume log
+ *	logAddress - start address of log space in FS block
+ *	logSize	- length of log space in FS block;
+ *
+ * RETURN:	0	- success
+ *		-EIO	- i/o error
+ *
+ * XXX: We're synchronously writing one page at a time.  This needs to
+ *	be improved by writing multiple pages at once.
+ */
+int lmLogFormat(struct jfs_log *log, s64 logAddress, int logSize)
+{
+	int rc = -EIO;
+	struct jfs_sb_info *sbi = JFS_SBI(log->sb);
+	struct logsuper *logsuper;
+	struct logpage *lp;
+	int lspn;		/* log sequence page number */
+	struct lrd *lrd_ptr;
+	int npages = 0;
+	struct lbuf *bp;
+
+	jfs_info("lmLogFormat: logAddress:%Ld logSize:%d",
+		 (long long)logAddress, logSize);
+
+	/* allocate a log buffer */
+	bp = lbmAllocate(log, 1);
+
+	npages = logSize >> sbi->l2nbperpage;
+
+	/*
+	 *      log space:
+	 *
+	 * page 0 - reserved;
+	 * page 1 - log superblock;
+	 * page 2 - log data page: A SYNC log record is written
+	 *          into this page at logform time;
+	 * pages 3-N - log data page: set to empty log data pages;
+	 */
+	/*
+	 *      init log superblock: log page 1
+	 */
+	logsuper = (struct logsuper *) bp->l_ldata;
+
+	logsuper->magic = cpu_to_le32(LOGMAGIC);
+	logsuper->version = cpu_to_le32(LOGVERSION);
+	logsuper->state = cpu_to_le32(LOGREDONE);
+	logsuper->flag = cpu_to_le32(sbi->mntflag);	/* ? */
+	logsuper->size = cpu_to_le32(npages);
+	logsuper->bsize = cpu_to_le32(sbi->bsize);
+	logsuper->l2bsize = cpu_to_le32(sbi->l2bsize);
+	logsuper->end = cpu_to_le32(2 * LOGPSIZE + LOGPHDRSIZE + LOGRDSIZE);
+
+	bp->l_flag = lbmWRITE | lbmSYNC | lbmDIRECT;
+	bp->l_blkno = logAddress + sbi->nbperpage;
+	lbmStartIO(bp);
+	if ((rc = lbmIOWait(bp, 0)))
+		goto exit;
+
+	/*
+	 *      init pages 2 to npages-1 as log data pages:
+	 *
+	 * log page sequence number (lpsn) initialization:
+	 *
+	 * pn:   0     1     2     3                 n-1
+	 *       +-----+-----+=====+=====+===.....===+=====+
+	 * lspn:             N-1   0     1           N-2
+	 *                   <--- N page circular file ---->
+	 *
+	 * the N (= npages-2) data pages of the log is maintained as
+	 * a circular file for the log records;
+	 * lpsn grows by 1 monotonically as each log page is written
+	 * to the circular file of the log;
+	 * and setLogpage() will not reset the page number even if
+	 * the eor is equal to LOGPHDRSIZE. In order for binary search
+	 * still work in find log end process, we have to simulate the
+	 * log wrap situation at the log format time.
+	 * The 1st log page written will have the highest lpsn. Then
+	 * the succeeding log pages will have ascending order of
+	 * the lspn starting from 0, ... (N-2)
+	 */
+	lp = (struct logpage *) bp->l_ldata;
+	/*
+	 * initialize 1st log page to be written: lpsn = N - 1,
+	 * write a SYNCPT log record is written to this page
+	 */
+	lp->h.page = lp->t.page = cpu_to_le32(npages - 3);
+	lp->h.eor = lp->t.eor = cpu_to_le16(LOGPHDRSIZE + LOGRDSIZE);
+
+	lrd_ptr = (struct lrd *) &lp->data;
+	lrd_ptr->logtid = 0;
+	lrd_ptr->backchain = 0;
+	lrd_ptr->type = cpu_to_le16(LOG_SYNCPT);
+	lrd_ptr->length = 0;
+	lrd_ptr->log.syncpt.sync = 0;
+
+	bp->l_blkno += sbi->nbperpage;
+	bp->l_flag = lbmWRITE | lbmSYNC | lbmDIRECT;
+	lbmStartIO(bp);
+	if ((rc = lbmIOWait(bp, 0)))
+		goto exit;
+
+	/*
+	 *      initialize succeeding log pages: lpsn = 0, 1, ..., (N-2)
+	 */
+	for (lspn = 0; lspn < npages - 3; lspn++) {
+		lp->h.page = lp->t.page = cpu_to_le32(lspn);
+		lp->h.eor = lp->t.eor = cpu_to_le16(LOGPHDRSIZE);
+
+		bp->l_blkno += sbi->nbperpage;
+		bp->l_flag = lbmWRITE | lbmSYNC | lbmDIRECT;
+		lbmStartIO(bp);
+		if ((rc = lbmIOWait(bp, 0)))
+			goto exit;
+	}
+
+	rc = 0;
+exit:
+	/*
+	 *      finalize log
+	 */
+	/* release the buffer */
+	lbmFree(bp);
+
+	return rc;
+}
+
+#ifdef CONFIG_JFS_STATISTICS
+int jfs_lmstats_read(char *buffer, char **start, off_t offset, int length,
+		      int *eof, void *data)
+{
+	int len = 0;
+	off_t begin;
+
+	len += sprintf(buffer,
+		       "JFS Logmgr stats\n"
+		       "================\n"
+		       "commits = %d\n"
+		       "writes submitted = %d\n"
+		       "writes completed = %d\n"
+		       "full pages submitted = %d\n"
+		       "partial pages submitted = %d\n",
+		       lmStat.commit,
+		       lmStat.submitted,
+		       lmStat.pagedone,
+		       lmStat.full_page,
+		       lmStat.partial_page);
+
+	begin = offset;
+	*start = buffer + begin;
+	len -= begin;
+
+	if (len > length)
+		len = length;
+	else
+		*eof = 1;
+
+	if (len < 0)
+		len = 0;
+
+	return len;
+}
+#endif /* CONFIG_JFS_STATISTICS */
diff --git a/fs/jfs/jfs_logmgr.h b/fs/jfs/jfs_logmgr.h
new file mode 100644
index 00000000000000..1fdebeea50bd70
--- /dev/null
+++ b/fs/jfs/jfs_logmgr.h
@@ -0,0 +1,517 @@
+/*
+ *   Copyright (c) International Business Machines Corp., 2000-2003
+ *   Portions Copyright (c) Christoph Hellwig, 2001-2002
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef	_H_JFS_LOGMGR
+#define _H_JFS_LOGMGR
+
+#include "jfs_filsys.h"
+#include "jfs_lock.h"
+
+/*
+ *	log manager configuration parameters
+ */
+
+/* log page size */
+#define	LOGPSIZE	4096
+#define	L2LOGPSIZE	12
+
+#define LOGPAGES	16	/* Log pages per mounted file system */
+
+/*
+ *	log logical volume
+ *
+ * a log is used to make the commit operation on journalled 
+ * files within the same logical volume group atomic.
+ * a log is implemented with a logical volume.
+ * there is one log per logical volume group. 
+ *
+ * block 0 of the log logical volume is not used (ipl etc).
+ * block 1 contains a log "superblock" and is used by logFormat(),
+ * lmLogInit(), lmLogShutdown(), and logRedo() to record status 
+ * of the log but is not otherwise used during normal processing. 
+ * blocks 2 - (N-1) are used to contain log records.
+ *
+ * when a volume group is varied-on-line, logRedo() must have 
+ * been executed before the file systems (logical volumes) in 
+ * the volume group can be mounted.
+ */
+/*
+ *	log superblock (block 1 of logical volume)
+ */
+#define	LOGSUPER_B	1
+#define	LOGSTART_B	2
+
+#define	LOGMAGIC	0x87654321
+#define	LOGVERSION	1
+
+#define MAX_ACTIVE	128	/* Max active file systems sharing log */
+
+struct logsuper {
+	u32 magic;		/* 4: log lv identifier */
+	s32 version;		/* 4: version number */
+	s32 serial;		/* 4: log open/mount counter */
+	s32 size;		/* 4: size in number of LOGPSIZE blocks */
+	s32 bsize;		/* 4: logical block size in byte */
+	s32 l2bsize;		/* 4: log2 of bsize */
+
+	u32 flag;		/* 4: option */
+	u32 state;		/* 4: state - see below */
+
+	s32 end;		/* 4: addr of last log record set by logredo */
+	char uuid[16];		/* 16: 128-bit journal uuid */
+	char label[16];		/* 16: journal label */
+	struct {
+		char uuid[16];
+	} active[MAX_ACTIVE];	/* 2048: active file systems list */
+};
+
+#define NULL_UUID "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
+
+/* log flag: commit option (see jfs_filsys.h) */
+
+/* log state */
+#define	LOGMOUNT	0	/* log mounted by lmLogInit() */
+#define LOGREDONE	1	/* log shutdown by lmLogShutdown().
+				 * log redo completed by logredo().
+				 */
+#define LOGWRAP		2	/* log wrapped */
+#define LOGREADERR	3	/* log read error detected in logredo() */
+
+
+/*
+ *	log logical page
+ *
+ * (this comment should be rewritten !)
+ * the header and trailer structures (h,t) will normally have 
+ * the same page and eor value.
+ * An exception to this occurs when a complete page write is not 
+ * accomplished on a power failure. Since the hardware may "split write"
+ * sectors in the page, any out of order sequence may occur during powerfail 
+ * and needs to be recognized during log replay.  The xor value is
+ * an "exclusive or" of all log words in the page up to eor.  This
+ * 32 bit eor is stored with the top 16 bits in the header and the
+ * bottom 16 bits in the trailer.  logredo can easily recognize pages
+ * that were not completed by reconstructing this eor and checking 
+ * the log page.
+ *
+ * Previous versions of the operating system did not allow split 
+ * writes and detected partially written records in logredo by 
+ * ordering the updates to the header, trailer, and the move of data 
+ * into the logdata area.  The order: (1) data is moved (2) header 
+ * is updated (3) trailer is updated.  In logredo, when the header 
+ * differed from the trailer, the header and trailer were reconciled 
+ * as follows: if h.page != t.page they were set to the smaller of 
+ * the two and h.eor and t.eor set to 8 (i.e. empty page). if (only) 
+ * h.eor != t.eor they were set to the smaller of their two values.
+ */
+struct logpage {
+	struct {		/* header */
+		s32 page;	/* 4: log sequence page number */
+		s16 rsrvd;	/* 2: */
+		s16 eor;	/* 2: end-of-log offset of lasrt record write */
+	} h;
+
+	s32 data[LOGPSIZE / 4 - 4];	/* log record area */
+
+	struct {		/* trailer */
+		s32 page;	/* 4: normally the same as h.page */
+		s16 rsrvd;	/* 2: */
+		s16 eor;	/* 2: normally the same as h.eor */
+	} t;
+};
+
+#define LOGPHDRSIZE	8	/* log page header size */
+#define LOGPTLRSIZE	8	/* log page trailer size */
+
+
+/*
+ *	log record
+ *
+ * (this comment should be rewritten !)
+ * jfs uses only "after" log records (only a single writer is allowed
+ * in a  page, pages are written to temporary paging space if
+ * if they must be written to disk before commit, and i/o is
+ * scheduled for modified pages to their home location after
+ * the log records containing the after values and the commit 
+ * record is written to the log on disk, undo discards the copy
+ * in main-memory.)
+ *
+ * a log record consists of a data area of variable length followed by 
+ * a descriptor of fixed size LOGRDSIZE bytes.
+ * the  data area is rounded up to an integral number of 4-bytes and 
+ * must be no longer than LOGPSIZE.
+ * the descriptor is of size of multiple of 4-bytes and aligned on a 
+ * 4-byte boundary. 
+ * records are packed one after the other in the data area of log pages.
+ * (sometimes a DUMMY record is inserted so that at least one record ends 
+ * on every page or the longest record is placed on at most two pages).
+ * the field eor in page header/trailer points to the byte following 
+ * the last record on a page.
+ */
+
+/* log record types */
+#define LOG_COMMIT		0x8000
+#define LOG_SYNCPT		0x4000
+#define LOG_MOUNT		0x2000
+#define LOG_REDOPAGE		0x0800
+#define LOG_NOREDOPAGE		0x0080
+#define LOG_NOREDOINOEXT	0x0040
+#define LOG_UPDATEMAP		0x0008
+#define LOG_NOREDOFILE		0x0001
+
+/* REDOPAGE/NOREDOPAGE log record data type */
+#define	LOG_INODE		0x0001
+#define	LOG_XTREE		0x0002
+#define	LOG_DTREE		0x0004
+#define	LOG_BTROOT		0x0010
+#define	LOG_EA			0x0020
+#define	LOG_ACL			0x0040
+#define	LOG_DATA		0x0080
+#define	LOG_NEW			0x0100
+#define	LOG_EXTEND		0x0200
+#define LOG_RELOCATE		0x0400
+#define LOG_DIR_XTREE		0x0800	/* Xtree is in directory inode */
+
+/* UPDATEMAP log record descriptor type */
+#define	LOG_ALLOCXADLIST	0x0080
+#define	LOG_ALLOCPXDLIST	0x0040
+#define	LOG_ALLOCXAD		0x0020
+#define	LOG_ALLOCPXD		0x0010
+#define	LOG_FREEXADLIST		0x0008
+#define	LOG_FREEPXDLIST		0x0004
+#define	LOG_FREEXAD		0x0002
+#define	LOG_FREEPXD		0x0001
+
+
+struct lrd {
+	/*
+	 * type independent area
+	 */
+	s32 logtid;		/* 4: log transaction identifier */
+	s32 backchain;		/* 4: ptr to prev record of same transaction */
+	u16 type;		/* 2: record type */
+	s16 length;		/* 2: length of data in record (in byte) */
+	u32 aggregate;		/* 4: file system lv/aggregate */
+	/* (16) */
+
+	/*
+	 * type dependent area (20)
+	 */
+	union {
+
+		/*
+		 *      COMMIT: commit
+		 *
+		 * transaction commit: no type-dependent information;
+		 */
+
+		/*
+		 *      REDOPAGE: after-image
+		 *
+		 * apply after-image;
+		 *
+		 * N.B. REDOPAGE, NOREDOPAGE, and UPDATEMAP must be same format;
+		 */
+		struct {
+			u32 fileset;	/* 4: fileset number */
+			u32 inode;	/* 4: inode number */
+			u16 type;	/* 2: REDOPAGE record type */
+			s16 l2linesize;	/* 2: log2 of line size */
+			pxd_t pxd;	/* 8: on-disk page pxd */
+		} redopage;	/* (20) */
+
+		/*
+		 *      NOREDOPAGE: the page is freed
+		 *
+		 * do not apply after-image records which precede this record
+		 * in the log with the same page block number to this page.
+		 *
+		 * N.B. REDOPAGE, NOREDOPAGE, and UPDATEMAP must be same format;
+		 */
+		struct {
+			s32 fileset;	/* 4: fileset number */
+			u32 inode;	/* 4: inode number */
+			u16 type;	/* 2: NOREDOPAGE record type */
+			s16 rsrvd;	/* 2: reserved */
+			pxd_t pxd;	/* 8: on-disk page pxd */
+		} noredopage;	/* (20) */
+
+		/*
+		 *      UPDATEMAP: update block allocation map
+		 *
+		 * either in-line PXD,
+		 * or     out-of-line  XADLIST;
+		 *
+		 * N.B. REDOPAGE, NOREDOPAGE, and UPDATEMAP must be same format;
+		 */
+		struct {
+			u32 fileset;	/* 4: fileset number */
+			u32 inode;	/* 4: inode number */
+			u16 type;	/* 2: UPDATEMAP record type */
+			s16 nxd;	/* 2: number of extents */
+			pxd_t pxd;	/* 8: pxd */
+		} updatemap;	/* (20) */
+
+		/*
+		 *      NOREDOINOEXT: the inode extent is freed
+		 *
+		 * do not apply after-image records which precede this 
+		 * record in the log with the any of the 4 page block 
+		 * numbers in this inode extent. 
+		 * 
+		 * NOTE: The fileset and pxd fields MUST remain in 
+		 *       the same fields in the REDOPAGE record format.
+		 *
+		 */
+		struct {
+			s32 fileset;	/* 4: fileset number */
+			s32 iagnum;	/* 4: IAG number     */
+			s32 inoext_idx;	/* 4: inode extent index */
+			pxd_t pxd;	/* 8: on-disk page pxd */
+		} noredoinoext;	/* (20) */
+
+		/*
+		 *      SYNCPT: log sync point
+		 *
+		 * replay log upto syncpt address specified;
+		 */
+		struct {
+			s32 sync;	/* 4: syncpt address (0 = here) */
+		} syncpt;
+
+		/*
+		 *      MOUNT: file system mount
+		 *
+		 * file system mount: no type-dependent information;
+		 */
+
+		/*
+		 *      ? FREEXTENT: free specified extent(s)
+		 *
+		 * free specified extent(s) from block allocation map
+		 * N.B.: nextents should be length of data/sizeof(xad_t)
+		 */
+		struct {
+			s32 type;	/* 4: FREEXTENT record type */
+			s32 nextent;	/* 4: number of extents */
+
+			/* data: PXD or XAD list */
+		} freextent;
+
+		/*
+		 *      ? NOREDOFILE: this file is freed
+		 *
+		 * do not apply records which precede this record in the log
+		 * with the same inode number.
+		 *
+		 * NOREDILE must be the first to be written at commit
+		 * (last to be read in logredo()) - it prevents
+		 * replay of preceding updates of all preceding generations
+		 * of the inumber esp. the on-disk inode itself, 
+		 * but does NOT prevent
+		 * replay of the 
+		 */
+		struct {
+			s32 fileset;	/* 4: fileset number */
+			u32 inode;	/* 4: inode number */
+		} noredofile;
+
+		/*
+		 *      ? NEWPAGE: 
+		 *
+		 * metadata type dependent
+		 */
+		struct {
+			s32 fileset;	/* 4: fileset number */
+			u32 inode;	/* 4: inode number */
+			s32 type;	/* 4: NEWPAGE record type */
+			pxd_t pxd;	/* 8: on-disk page pxd */
+		} newpage;
+
+		/*
+		 *      ? DUMMY: filler
+		 *
+		 * no type-dependent information
+		 */
+	} log;
+};					/* (36) */
+
+#define	LOGRDSIZE	(sizeof(struct lrd))
+
+/*
+ *	line vector descriptor
+ */
+struct lvd {
+	s16 offset;
+	s16 length;
+};
+
+
+/*
+ *	log logical volume
+ */
+struct jfs_log {
+
+	struct super_block *sb;	/* 4: This is used to sync metadata
+				 *    before writing syncpt.  Will
+				 *    need to be a list if we share
+				 *    the log between fs's
+				 */
+	struct block_device *bdev; /* 4: log lv pointer */
+	s32 serial;		/* 4: log mount serial number */
+
+	s64 base;		/* @8: log extent address (inline log ) */
+	int size;		/* 4: log size in log page (in page) */
+	int l2bsize;		/* 4: log2 of bsize */
+
+	long flag;		/* 4: flag */
+
+	struct lbuf *lbuf_free;	/* 4: free lbufs */
+	wait_queue_head_t free_wait;	/* 4: */
+
+	/* log write */
+	int logtid;		/* 4: log tid */
+	int page;		/* 4: page number of eol page */
+	int eor;		/* 4: eor of last record in eol page */
+	struct lbuf *bp;	/* 4: current log page buffer */
+
+	struct semaphore loglock;	/* 4: log write serialization lock */
+
+	/* syncpt */
+	int nextsync;		/* 4: bytes to write before next syncpt */
+	int active;		/* 4: */
+	wait_queue_head_t syncwait;	/* 4: */
+
+	/* commit */
+	uint cflag;		/* 4: */
+	struct {		/* 8: FIFO commit queue header */
+		struct tblock *head;
+		struct tblock *tail;
+	} cqueue;
+	struct tblock *flush_tblk; /* tblk we're waiting on for flush */
+	int gcrtc;		/* 4: GC_READY transaction count */
+	struct tblock *gclrt;	/* 4: latest GC_READY transaction */
+	spinlock_t gclock;	/* 4: group commit lock */
+	int logsize;		/* 4: log data area size in byte */
+	int lsn;		/* 4: end-of-log */
+	int clsn;		/* 4: clsn */
+	int syncpt;		/* 4: addr of last syncpt record */
+	int sync;		/* 4: addr from last logsync() */
+	struct list_head synclist;	/* 8: logsynclist anchor */
+	spinlock_t synclock;	/* 4: synclist lock */
+	struct lbuf *wqueue;	/* 4: log pageout queue */
+	int count;		/* 4: count */
+	char uuid[16];		/* 16: 128-bit uuid of log device */
+
+	int no_integrity;	/* flag to disable journaling to disk */
+	int ni_page;		/* backup of page for nointegrity option */
+	int ni_eor;		/* backup of eor for nointegrity option */
+};
+
+/*
+ * Log flag
+ */
+#define log_INLINELOG	1
+#define log_SYNCBARRIER	2
+#define log_QUIESCE	3
+#define log_FLUSH	4
+
+/*
+ * group commit flag
+ */
+/* jfs_log */
+#define logGC_PAGEOUT	0x00000001
+
+/* tblock/lbuf */
+#define tblkGC_QUEUE		0x0001
+#define tblkGC_READY		0x0002
+#define tblkGC_COMMIT		0x0004
+#define tblkGC_COMMITTED	0x0008
+#define tblkGC_EOP		0x0010
+#define tblkGC_FREE		0x0020
+#define tblkGC_LEADER		0x0040
+#define tblkGC_ERROR		0x0080
+#define tblkGC_LAZY		0x0100	// D230860
+#define tblkGC_UNLOCKED		0x0200	// D230860
+
+/*
+ *		log cache buffer header
+ */
+struct lbuf {
+	struct buffer_head l_bh;	/* for doing I/O */
+	struct jfs_log *l_log;		/* 4: log associated with buffer */
+
+	/*
+	 * data buffer base area
+	 */
+	uint l_flag;		/* 4: pageout control flags */
+
+	struct lbuf *l_wqnext;	/* 4: write queue link */
+	struct lbuf *l_freelist;	/* 4: freelistlink */
+
+	int l_pn;		/* 4: log page number */
+	int l_eor;		/* 4: log record eor */
+	int l_ceor;		/* 4: committed log record eor */
+
+	s64 l_blkno;		/* 8: log page block number */
+	caddr_t l_ldata;	/* 4: data page */
+
+	wait_queue_head_t l_ioevent;	/* 4: i/o done event */
+	struct page *l_page;	/* The page itself */
+};
+
+/* Reuse l_freelist for redrive list */
+#define l_redrive_next l_freelist
+
+/*
+ *	logsynclist block
+ *
+ * common logsyncblk prefix for jbuf_t and tblock
+ */
+struct logsyncblk {
+	u16 xflag;		/* flags */
+	u16 flag;		/* only meaninful in tblock */
+	lid_t lid;		/* lock id */
+	s32 lsn;		/* log sequence number */
+	struct list_head synclist;	/* log sync list link */
+};
+
+/*
+ *	logsynclist serialization (per log)
+ */
+
+#define LOGSYNC_LOCK_INIT(log) spin_lock_init(&(log)->synclock)
+#define LOGSYNC_LOCK(log) spin_lock(&(log)->synclock)
+#define LOGSYNC_UNLOCK(log) spin_unlock(&(log)->synclock)
+
+/* compute the difference in bytes of lsn from sync point */
+#define logdiff(diff, lsn, log)\
+{\
+	diff = (lsn) - (log)->syncpt;\
+	if (diff < 0)\
+		diff += (log)->logsize;\
+}
+
+extern int lmLogOpen(struct super_block *sb, struct jfs_log ** log);
+extern int lmLogClose(struct super_block *sb, struct jfs_log * log);
+extern int lmLogShutdown(struct jfs_log * log);
+extern int lmLogInit(struct jfs_log * log);
+extern int lmLogFormat(struct jfs_log *log, s64 logAddress, int logSize);
+extern void jfs_flush_journal(struct jfs_log * log, int wait);
+
+#endif				/* _H_JFS_LOGMGR */
diff --git a/fs/jfs/jfs_metapage.c b/fs/jfs/jfs_metapage.c
new file mode 100644
index 00000000000000..84d86a56e5e29c
--- /dev/null
+++ b/fs/jfs/jfs_metapage.c
@@ -0,0 +1,637 @@
+/*
+ *   Copyright (C) International Business Machines Corp., 2000-2004
+ *   Portions Copyright (C) Christoph Hellwig, 2001-2002
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/fs.h>
+#include <linux/init.h>
+#include "jfs_incore.h"
+#include "jfs_superblock.h"
+#include "jfs_filsys.h"
+#include "jfs_metapage.h"
+#include "jfs_txnmgr.h"
+#include "jfs_debug.h"
+
+extern struct task_struct *jfsCommitTask;
+static spinlock_t meta_lock = SPIN_LOCK_UNLOCKED;
+static wait_queue_head_t meta_wait;
+
+#ifdef CONFIG_JFS_STATISTICS
+struct {
+	uint	pagealloc;	/* # of page allocations */
+	uint	pagefree;	/* # of page frees */
+	uint	lockwait;	/* # of sleeping lock_metapage() calls */
+	uint	allocwait;	/* # of sleeping alloc_metapage() calls */
+} mpStat;
+#endif
+
+
+#define HASH_BITS 10		/* This makes hash_table 1 4K page */
+#define HASH_SIZE (1 << HASH_BITS)
+static struct metapage **hash_table = NULL;
+static unsigned long hash_order;
+
+
+static inline int metapage_locked(struct metapage *mp)
+{
+	return test_bit(META_locked, &mp->flag);
+}
+
+static inline int trylock_metapage(struct metapage *mp)
+{
+	return test_and_set_bit(META_locked, &mp->flag);
+}
+
+static inline void unlock_metapage(struct metapage *mp)
+{
+	clear_bit(META_locked, &mp->flag);
+	wake_up(&mp->wait);
+}
+
+static void __lock_metapage(struct metapage *mp)
+{
+	DECLARE_WAITQUEUE(wait, current);
+
+	INCREMENT(mpStat.lockwait);
+
+	add_wait_queue_exclusive(&mp->wait, &wait);
+	do {
+		set_current_state(TASK_UNINTERRUPTIBLE);
+		if (metapage_locked(mp)) {
+			spin_unlock(&meta_lock);
+			schedule();
+			spin_lock(&meta_lock);
+		}
+	} while (trylock_metapage(mp));
+	__set_current_state(TASK_RUNNING);
+	remove_wait_queue(&mp->wait, &wait);
+}
+
+/* needs meta_lock */
+static inline void lock_metapage(struct metapage *mp)
+{
+	if (trylock_metapage(mp))
+		__lock_metapage(mp);
+}
+
+/*
+ * metapage pool is based on Linux 2.5's mempool
+ *
+ * Tap into reserved structures in critical paths where waiting on a
+ * memory allocation could cause deadlock
+ */
+#define METAPOOL_MIN_PAGES 32
+static struct metapage *reserved_metapages[METAPOOL_MIN_PAGES];
+static int num_reserved = 0;
+kmem_cache_t *metapage_cache;
+
+static void init_once(void *foo, kmem_cache_t *cachep, unsigned long flags)
+{
+	struct metapage *mp = (struct metapage *)foo;
+
+	if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
+	    SLAB_CTOR_CONSTRUCTOR) {
+		mp->lid = 0;
+		mp->lsn = 0;
+		mp->flag = 0;
+		mp->data = NULL;
+		mp->clsn = 0;
+		mp->log = NULL;
+		set_bit(META_free, &mp->flag);
+		init_waitqueue_head(&mp->wait);
+	}
+}
+
+static void empty_reserved(void)
+{
+	while (num_reserved--)
+		kmem_cache_free(metapage_cache,
+				reserved_metapages[num_reserved]);
+}
+
+static struct metapage *alloc_metapage(int *dropped_lock, int no_wait)
+{
+	struct metapage *new;
+
+	*dropped_lock = 0;
+
+	/*
+	 * Always try an atomic alloc first, to avoid dropping the
+	 * spinlock
+	 */
+	new = kmem_cache_alloc(metapage_cache, GFP_ATOMIC);
+	if (new)
+		return new;
+
+	if (no_wait && num_reserved)
+		return reserved_metapages[--num_reserved];
+
+	*dropped_lock = 1;
+	spin_unlock(&meta_lock);
+	new = kmem_cache_alloc(metapage_cache, GFP_NOFS);
+	spin_lock(&meta_lock);
+	return new;
+}
+
+static void __free_metapage(struct metapage *mp)
+{
+	mp->flag = 0;
+	set_bit(META_free, &mp->flag);
+
+	if (num_reserved < METAPOOL_MIN_PAGES)
+		reserved_metapages[num_reserved++] = mp;
+	else
+		kmem_cache_free(metapage_cache, mp);
+}
+
+static inline void free_metapage(struct metapage * mp)
+{
+	spin_lock(&meta_lock);
+	__free_metapage(mp);
+	spin_unlock(&meta_lock);
+}
+
+int __init metapage_init(void)
+{
+	struct metapage *mp;
+
+	/*
+	 * Initialize wait queue
+	 */
+	init_waitqueue_head(&meta_wait);
+
+	/*
+	 * Allocate the metapage structures
+	 */
+	metapage_cache = kmem_cache_create("jfs_mp", sizeof(struct metapage),
+					   0, 0, init_once, NULL);
+	if (metapage_cache == NULL)
+		return -ENOMEM;
+
+	while (num_reserved < METAPOOL_MIN_PAGES) {
+		mp = kmem_cache_alloc(metapage_cache, GFP_NOFS);
+		if (mp)
+			reserved_metapages[num_reserved++] = mp;
+		else {
+			empty_reserved();
+			kmem_cache_destroy(metapage_cache);
+			return -ENOMEM;
+		}
+	}
+	/*
+	 * Now the hash list
+	 */
+	for (hash_order = 0;
+	     ((PAGE_SIZE << hash_order) / sizeof(void *)) < HASH_SIZE;
+	     hash_order++);
+	hash_table =
+	    (struct metapage **) __get_free_pages(GFP_KERNEL, hash_order);
+	assert(hash_table);
+	memset(hash_table, 0, PAGE_SIZE << hash_order);
+
+	return 0;
+}
+
+void metapage_exit(void)
+{
+	empty_reserved();
+	kmem_cache_destroy(metapage_cache);
+}
+
+/*
+ * Basically same hash as in pagemap.h, but using our hash table
+ */
+static struct metapage **meta_hash(struct address_space *mapping,
+				   unsigned long index)
+{
+#define i (((unsigned long)mapping)/ \
+	   (sizeof(struct inode) & ~(sizeof(struct inode) -1 )))
+#define s(x) ((x) + ((x) >> HASH_BITS))
+	return hash_table + (s(i + index) & (HASH_SIZE - 1));
+#undef i
+#undef s
+}
+
+static struct metapage *search_hash(struct metapage ** hash_ptr,
+				    struct address_space *mapping,
+			       unsigned long index)
+{
+	struct metapage *ptr;
+
+	for (ptr = *hash_ptr; ptr; ptr = ptr->hash_next) {
+		if ((ptr->mapping == mapping) && (ptr->index == index))
+			return ptr;
+	}
+
+	return NULL;
+}
+
+static void add_to_hash(struct metapage * mp, struct metapage ** hash_ptr)
+{
+	if (*hash_ptr)
+		(*hash_ptr)->hash_prev = mp;
+
+	mp->hash_prev = NULL;
+	mp->hash_next = *hash_ptr;
+	*hash_ptr = mp;
+}
+
+static void remove_from_hash(struct metapage * mp, struct metapage ** hash_ptr)
+{
+	if (mp->hash_prev)
+		mp->hash_prev->hash_next = mp->hash_next;
+	else {
+		assert(*hash_ptr == mp);
+		*hash_ptr = mp->hash_next;
+	}
+
+	if (mp->hash_next)
+		mp->hash_next->hash_prev = mp->hash_prev;
+}
+
+struct metapage *__get_metapage(struct inode *inode, unsigned long lblock,
+				unsigned int size, int absolute,
+				unsigned long new)
+{
+	int dropped_lock;
+	struct metapage **hash_ptr;
+	int l2BlocksPerPage;
+	int l2bsize;
+	int no_wait;
+	struct address_space *mapping;
+	struct metapage *mp;
+	unsigned long page_index;
+	unsigned long page_offset;
+
+	jfs_info("__get_metapage: inode = 0x%p, lblock = 0x%lx", inode, lblock);
+
+	if (absolute)
+		mapping = inode->i_sb->s_bdev->bd_inode->i_mapping;
+	else {
+		/*
+		 * If an nfs client tries to read an inode that is larger
+		 * than any existing inodes, we may try to read past the
+		 * end of the inode map
+		 */
+		if ((lblock << inode->i_blkbits) >= inode->i_size)
+			return NULL;
+		mapping = inode->i_mapping;
+	}
+
+	hash_ptr = meta_hash(mapping, lblock);
+again:
+	spin_lock(&meta_lock);
+	mp = search_hash(hash_ptr, mapping, lblock);
+	if (mp) {
+	      page_found:
+		if (test_bit(META_stale, &mp->flag)) {
+			spin_unlock(&meta_lock);
+			yield();
+			goto again;
+		}
+		mp->count++;
+		lock_metapage(mp);
+		spin_unlock(&meta_lock);
+		if (test_bit(META_discard, &mp->flag)) {
+			if (!new) {
+				jfs_error(inode->i_sb,
+					  "__get_metapage: using a "
+					  "discarded metapage");
+				release_metapage(mp);
+				return NULL;
+			}
+			clear_bit(META_discard, &mp->flag);
+		}
+		jfs_info("__get_metapage: found 0x%p, in hash", mp);
+		if (mp->logical_size != size) {
+			jfs_error(inode->i_sb,
+				  "__get_metapage: mp->logical_size != size");
+			release_metapage(mp);
+			return NULL;
+		}
+	} else {
+		l2bsize = inode->i_blkbits;
+		l2BlocksPerPage = PAGE_CACHE_SHIFT - l2bsize;
+		page_index = lblock >> l2BlocksPerPage;
+		page_offset = (lblock - (page_index << l2BlocksPerPage)) <<
+		    l2bsize;
+		if ((page_offset + size) > PAGE_CACHE_SIZE) {
+			spin_unlock(&meta_lock);
+			jfs_err("MetaData crosses page boundary!!");
+			return NULL;
+		}
+		
+		/*
+		 * Locks held on aggregate inode pages are usually
+		 * not held long, and they are taken in critical code
+		 * paths (committing dirty inodes, txCommit thread) 
+		 * 
+		 * Attempt to get metapage without blocking, tapping into
+		 * reserves if necessary.
+		 */
+		if (JFS_IP(inode)->fileset == AGGREGATE_I)
+			no_wait = 1;
+		else
+			no_wait = 0;
+
+		mp = alloc_metapage(&dropped_lock, no_wait);
+		if (!mp) {
+			spin_unlock(&meta_lock);
+			return NULL;
+		}
+		if (dropped_lock) {
+			/* alloc_metapage blocked, we need to search the hash
+			 * again.
+			 */
+			struct metapage *mp2;
+			mp2 = search_hash(hash_ptr, mapping, lblock);
+			if (mp2) {
+				__free_metapage(mp);
+				mp = mp2;
+				goto page_found;
+			}
+		}
+		mp->flag = 0;
+		lock_metapage(mp);
+		if (absolute)
+			set_bit(META_absolute, &mp->flag);
+		mp->xflag = COMMIT_PAGE;
+		mp->count = 1;
+		atomic_set(&mp->nohomeok,0);
+		mp->mapping = mapping;
+		mp->index = lblock;
+		mp->page = 0;
+		mp->logical_size = size;
+		add_to_hash(mp, hash_ptr);
+		spin_unlock(&meta_lock);
+
+		if (new) {
+			jfs_info("__get_metapage: Calling grab_cache_page");
+			mp->page = grab_cache_page(mapping, page_index);
+			if (!mp->page) {
+				jfs_err("grab_cache_page failed!");
+				goto freeit;
+			} else {
+				INCREMENT(mpStat.pagealloc);
+				UnlockPage(mp->page);
+			}
+		} else {
+			jfs_info("__get_metapage: Calling read_cache_page");
+			mp->page = read_cache_page(mapping, lblock,
+				    (filler_t *)mapping->a_ops->readpage, NULL);
+			if (IS_ERR(mp->page)) {
+				jfs_err("read_cache_page failed!");
+				goto freeit;
+			} else
+				INCREMENT(mpStat.pagealloc);
+		}
+		mp->data = kmap(mp->page) + page_offset;
+	}
+
+	if (new)
+		memset(mp->data, 0, PSIZE);
+
+	jfs_info("__get_metapage: returning = 0x%p", mp);
+	return mp;
+
+freeit:
+	spin_lock(&meta_lock);
+	remove_from_hash(mp, hash_ptr);
+	__free_metapage(mp);
+	spin_unlock(&meta_lock);
+	return NULL;
+}
+
+void hold_metapage(struct metapage * mp, int force)
+{
+	spin_lock(&meta_lock);
+
+	mp->count++;
+
+	if (force) {
+		ASSERT (!(test_bit(META_forced, &mp->flag)));
+		if (trylock_metapage(mp))
+			set_bit(META_forced, &mp->flag);
+	} else
+		lock_metapage(mp);
+
+	spin_unlock(&meta_lock);
+}
+
+static void __write_metapage(struct metapage * mp)
+{
+	int l2bsize = mp->mapping->host->i_blkbits;
+	int l2BlocksPerPage = PAGE_CACHE_SHIFT - l2bsize;
+	unsigned long page_index;
+	unsigned long page_offset;
+	int rc;
+
+	jfs_info("__write_metapage: mp = 0x%p", mp);
+
+	if (test_bit(META_discard, &mp->flag)) {
+		/*
+		 * This metadata is no longer valid
+		 */
+		clear_bit(META_dirty, &mp->flag);
+		return;
+	}
+
+	page_index = mp->page->index;
+	page_offset =
+	    (mp->index - (page_index << l2BlocksPerPage)) << l2bsize;
+
+	lock_page(mp->page);
+	rc = mp->mapping->a_ops->prepare_write(NULL, mp->page, page_offset,
+					       page_offset +
+					       mp->logical_size);
+	if (rc) {
+		jfs_err("prepare_write return %d!", rc);
+		ClearPageUptodate(mp->page);
+		UnlockPage(mp->page);
+		kunmap(mp->page);
+		clear_bit(META_dirty, &mp->flag);
+		return;
+	}
+	rc = mp->mapping->a_ops->commit_write(NULL, mp->page, page_offset,
+					      page_offset +
+					      mp->logical_size);
+	if (rc) {
+		jfs_err("commit_write returned %d", rc);
+	}
+
+	UnlockPage(mp->page);
+	clear_bit(META_dirty, &mp->flag);
+
+	jfs_info("__write_metapage done");
+}
+
+static inline void sync_metapage(struct metapage *mp)
+{
+	struct page *page = mp->page;
+
+	page_cache_get(page);
+	lock_page(page);
+
+	/* we're done with this page - no need to check for errors */
+	if (page->buffers) {
+		writeout_one_page(page);
+		waitfor_one_page(page);
+	}
+
+	UnlockPage(page);
+	page_cache_release(page);
+}
+
+void release_metapage(struct metapage * mp)
+{
+	struct jfs_log *log;
+
+	jfs_info("release_metapage: mp = 0x%p, flag = 0x%lx", mp, mp->flag);
+
+	spin_lock(&meta_lock);
+	if (test_bit(META_forced, &mp->flag)) {
+		clear_bit(META_forced, &mp->flag);
+		mp->count--;
+		spin_unlock(&meta_lock);
+		return;
+	}
+
+	assert(mp->count);
+	if (--mp->count || atomic_read(&mp->nohomeok)) {
+		unlock_metapage(mp);
+		spin_unlock(&meta_lock);
+		return;
+	}
+
+	if (mp->page) {
+		set_bit(META_stale, &mp->flag);
+		spin_unlock(&meta_lock);
+		kunmap(mp->page);
+		mp->data = 0;
+		if (test_bit(META_dirty, &mp->flag))
+			__write_metapage(mp);
+		if (test_bit(META_sync, &mp->flag)) {
+			sync_metapage(mp);
+			clear_bit(META_sync, &mp->flag);
+		}
+
+		if (test_bit(META_discard, &mp->flag)) {
+			lock_page(mp->page);
+			block_flushpage(mp->page, 0);
+			UnlockPage(mp->page);
+		}
+
+		page_cache_release(mp->page);
+		mp->page = NULL;
+		INCREMENT(mpStat.pagefree);
+		spin_lock(&meta_lock);
+	}
+
+	if (mp->lsn) {
+		/*
+		 * Remove metapage from logsynclist.
+		 */
+		log = mp->log;
+		LOGSYNC_LOCK(log);
+		mp->log = 0;
+		mp->lsn = 0;
+		mp->clsn = 0;
+		log->count--;
+		list_del(&mp->synclist);
+		LOGSYNC_UNLOCK(log);
+	}
+	remove_from_hash(mp, meta_hash(mp->mapping, mp->index));
+	spin_unlock(&meta_lock);
+
+	free_metapage(mp);
+}
+
+void __invalidate_metapages(struct inode *ip, s64 addr, int len)
+{
+	struct metapage **hash_ptr;
+	unsigned long lblock;
+	int l2BlocksPerPage = PAGE_CACHE_SHIFT - ip->i_blkbits;
+	/* All callers are interested in block device's mapping */
+	struct address_space *mapping = ip->i_sb->s_bdev->bd_inode->i_mapping;
+	struct metapage *mp;
+	struct page *page;
+
+	/*
+	 * First, mark metapages to discard.  They will eventually be
+	 * released, but should not be written.
+	 */
+	for (lblock = addr; lblock < addr + len;
+	     lblock += 1 << l2BlocksPerPage) {
+		hash_ptr = meta_hash(mapping, lblock);
+again:
+		spin_lock(&meta_lock);
+		mp = search_hash(hash_ptr, mapping, lblock);
+		if (mp) {
+			if (test_bit(META_stale, &mp->flag)) {
+				spin_unlock(&meta_lock);
+				yield();
+				goto again;
+			}
+
+			set_bit(META_discard, &mp->flag);
+			spin_unlock(&meta_lock);
+		} else {
+			spin_unlock(&meta_lock);
+			page = find_lock_page(mapping, lblock>>l2BlocksPerPage);
+			if (page) {
+				block_flushpage(page, 0);
+				UnlockPage(page);
+				page_cache_release(page);
+			}
+		}
+	}
+}
+
+#ifdef CONFIG_JFS_STATISTICS
+int jfs_mpstat_read(char *buffer, char **start, off_t offset, int length,
+		    int *eof, void *data)
+{
+	int len = 0;
+	off_t begin;
+
+	len += sprintf(buffer,
+		       "JFS Metapage statistics\n"
+		       "=======================\n"
+		       "page allocations = %d\n"
+		       "page frees = %d\n"
+		       "lock waits = %d\n"
+		       "allocation waits = %d\n",
+		       mpStat.pagealloc,
+		       mpStat.pagefree,
+		       mpStat.lockwait,
+		       mpStat.allocwait);
+
+	begin = offset;
+	*start = buffer + begin;
+	len -= begin;
+
+	if (len > length)
+		len = length;
+	else
+		*eof = 1;
+
+	if (len < 0)
+		len = 0;
+
+	return len;
+}
+#endif
diff --git a/fs/jfs/jfs_metapage.h b/fs/jfs/jfs_metapage.h
new file mode 100644
index 00000000000000..0e58aba58c37c0
--- /dev/null
+++ b/fs/jfs/jfs_metapage.h
@@ -0,0 +1,115 @@
+/*
+ *   Copyright (c) International Business Machines Corp., 2000-2002
+ *   Portions Copyright (c) Christoph Hellwig, 2001-2002
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef	_H_JFS_METAPAGE
+#define _H_JFS_METAPAGE
+
+#include <linux/pagemap.h>
+
+struct metapage {
+	/* Common logsyncblk prefix (see jfs_logmgr.h) */
+	u16 xflag;
+	u16 unused;
+	lid_t lid;
+	int lsn;
+	struct list_head synclist;
+	/* End of logsyncblk prefix */
+
+	unsigned long flag;	/* See Below */
+	unsigned long count;	/* Reference count */
+	void *data;		/* Data pointer */
+
+	/* list management stuff */
+	struct metapage *hash_prev;
+	struct metapage *hash_next;	/* Also used for free list */
+
+	/*
+	 * mapping & index become redundant, but we need these here to
+	 * add the metapage to the hash before we have the real page
+	 */
+	struct address_space *mapping;
+	unsigned long index;
+	wait_queue_head_t wait;
+
+	/* implementation */
+	struct page *page;
+	unsigned long logical_size;
+
+	/* Journal management */
+	int clsn;
+	atomic_t nohomeok;
+	struct jfs_log *log;
+};
+
+/* metapage flag */
+#define META_locked	0
+#define META_absolute	1
+#define META_free	2
+#define META_dirty	3
+#define META_sync	4
+#define META_discard	5
+#define META_forced	6
+#define META_stale	7
+
+#define mark_metapage_dirty(mp) set_bit(META_dirty, &(mp)->flag)
+
+/* function prototypes */
+extern struct metapage *__get_metapage(struct inode *inode,
+				  unsigned long lblock, unsigned int size,
+				  int absolute, unsigned long new);
+
+#define read_metapage(inode, lblock, size, absolute)\
+	 __get_metapage(inode, lblock, size, absolute, FALSE)
+
+#define get_metapage(inode, lblock, size, absolute)\
+	 __get_metapage(inode, lblock, size, absolute, TRUE)
+
+extern void release_metapage(struct metapage *);
+extern void hold_metapage(struct metapage *, int);
+
+static inline void write_metapage(struct metapage *mp)
+{
+	set_bit(META_dirty, &mp->flag);
+	release_metapage(mp);
+}
+
+static inline void flush_metapage(struct metapage *mp)
+{
+	set_bit(META_sync, &mp->flag);
+	write_metapage(mp);
+}
+
+static inline void discard_metapage(struct metapage *mp)
+{
+	clear_bit(META_dirty, &mp->flag);
+	set_bit(META_discard, &mp->flag);
+	release_metapage(mp);
+}
+
+/*
+ * This routines invalidate all pages for an extent.
+ */
+extern void __invalidate_metapages(struct inode *, s64, int);
+#define invalidate_pxd_metapages(ip, pxd) \
+	__invalidate_metapages((ip), addressPXD(&(pxd)), lengthPXD(&(pxd)))
+#define invalidate_dxd_metapages(ip, dxd) \
+	__invalidate_metapages((ip), addressDXD(&(dxd)), lengthDXD(&(dxd)))
+#define invalidate_xad_metapages(ip, xad) \
+	__invalidate_metapages((ip), addressXAD(&(xad)), lengthXAD(&(xad)))
+
+#endif				/* _H_JFS_METAPAGE */
diff --git a/fs/jfs/jfs_mount.c b/fs/jfs/jfs_mount.c
new file mode 100644
index 00000000000000..54e154a5783d67
--- /dev/null
+++ b/fs/jfs/jfs_mount.c
@@ -0,0 +1,512 @@
+/*
+ *   Copyright (c) International Business Machines Corp., 2000-2003
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/*
+ * Module: jfs_mount.c
+ *
+ * note: file system in transition to aggregate/fileset:
+ *
+ * file system mount is interpreted as the mount of aggregate, 
+ * if not already mounted, and mount of the single/only fileset in 
+ * the aggregate;
+ *
+ * a file system/aggregate is represented by an internal inode
+ * (aka mount inode) initialized with aggregate superblock;
+ * each vfs represents a fileset, and points to its "fileset inode 
+ * allocation map inode" (aka fileset inode):
+ * (an aggregate itself is structured recursively as a filset: 
+ * an internal vfs is constructed and points to its "fileset inode 
+ * allocation map inode" (aka aggregate inode) where each inode 
+ * represents a fileset inode) so that inode number is mapped to 
+ * on-disk inode in uniform way at both aggregate and fileset level;
+ *
+ * each vnode/inode of a fileset is linked to its vfs (to facilitate
+ * per fileset inode operations, e.g., unmount of a fileset, etc.);
+ * each inode points to the mount inode (to facilitate access to
+ * per aggregate information, e.g., block size, etc.) as well as
+ * its file set inode.
+ *
+ *   aggregate 
+ *   ipmnt
+ *   mntvfs -> fileset ipimap+ -> aggregate ipbmap -> aggregate ipaimap;
+ *             fileset vfs     -> vp(1) <-> ... <-> vp(n) <->vproot;
+ */
+
+#include <linux/fs.h>
+#include <linux/locks.h>
+
+#include "jfs_incore.h"
+#include "jfs_filsys.h"
+#include "jfs_superblock.h"
+#include "jfs_dmap.h"
+#include "jfs_imap.h"
+#include "jfs_metapage.h"
+#include "jfs_debug.h"
+
+
+/*
+ * forward references
+ */
+static int chkSuper(struct super_block *);
+static int logMOUNT(struct super_block *sb);
+
+/*
+ * NAME:	jfs_mount(sb)
+ *
+ * FUNCTION:	vfs_mount()
+ *
+ * PARAMETER:	sb	- super block
+ *
+ * RETURN:	-EBUSY	- device already mounted or open for write
+ *		-EBUSY	- cvrdvp already mounted;
+ *		-EBUSY	- mount table full
+ *		-ENOTDIR- cvrdvp not directory on a device mount
+ *		-ENXIO	- device open failure
+ */
+int jfs_mount(struct super_block *sb)
+{
+	int rc = 0;		/* Return code          */
+	struct jfs_sb_info *sbi = JFS_SBI(sb);
+	struct inode *ipaimap = NULL;
+	struct inode *ipaimap2 = NULL;
+	struct inode *ipimap = NULL;
+	struct inode *ipbmap = NULL;
+
+	/*
+	 * read/validate superblock 
+	 * (initialize mount inode from the superblock)
+	 */
+	if ((rc = chkSuper(sb))) {
+		goto errout20;
+	}
+
+	ipaimap = diReadSpecial(sb, AGGREGATE_I, 0);
+	if (ipaimap == NULL) {
+		jfs_err("jfs_mount: Faild to read AGGREGATE_I");
+		rc = -EIO;
+		goto errout20;
+	}
+	sbi->ipaimap = ipaimap;
+
+	jfs_info("jfs_mount: ipaimap:0x%p", ipaimap);
+
+	/*
+	 * initialize aggregate inode allocation map
+	 */
+	if ((rc = diMount(ipaimap))) {
+		jfs_err("jfs_mount: diMount(ipaimap) failed w/rc = %d", rc);
+		goto errout21;
+	}
+
+	/*
+	 * open aggregate block allocation map
+	 */
+	ipbmap = diReadSpecial(sb, BMAP_I, 0);
+	if (ipbmap == NULL) {
+		rc = -EIO;
+		goto errout22;
+	}
+
+	jfs_info("jfs_mount: ipbmap:0x%p", ipbmap);
+
+	sbi->ipbmap = ipbmap;
+
+	/*
+	 * initialize aggregate block allocation map
+	 */
+	if ((rc = dbMount(ipbmap))) {
+		jfs_err("jfs_mount: dbMount failed w/rc = %d", rc);
+		goto errout22;
+	}
+
+	/*
+	 * open the secondary aggregate inode allocation map
+	 *
+	 * This is a duplicate of the aggregate inode allocation map.
+	 *
+	 * hand craft a vfs in the same fashion as we did to read ipaimap.
+	 * By adding INOSPEREXT (32) to the inode number, we are telling
+	 * diReadSpecial that we are reading from the secondary aggregate
+	 * inode table.  This also creates a unique entry in the inode hash
+	 * table.
+	 */
+	if ((sbi->mntflag & JFS_BAD_SAIT) == 0) {
+		ipaimap2 = diReadSpecial(sb, AGGREGATE_I, 1);
+		if (ipaimap2 == 0) {
+			jfs_err("jfs_mount: Faild to read AGGREGATE_I");
+			rc = -EIO;
+			goto errout35;
+		}
+		sbi->ipaimap2 = ipaimap2;
+
+		jfs_info("jfs_mount: ipaimap2:0x%p", ipaimap2);
+
+		/*
+		 * initialize secondary aggregate inode allocation map
+		 */
+		if ((rc = diMount(ipaimap2))) {
+			jfs_err("jfs_mount: diMount(ipaimap2) failed, rc = %d",
+				rc);
+			goto errout35;
+		}
+	} else
+		/* Secondary aggregate inode table is not valid */
+		sbi->ipaimap2 = 0;
+
+	/*
+	 *      mount (the only/single) fileset
+	 */
+	/*
+	 * open fileset inode allocation map (aka fileset inode)
+	 */
+	ipimap = diReadSpecial(sb, FILESYSTEM_I, 0);
+	if (ipimap == NULL) {
+		jfs_err("jfs_mount: Failed to read FILESYSTEM_I");
+		/* open fileset secondary inode allocation map */
+		rc = -EIO;
+		goto errout40;
+	}
+	jfs_info("jfs_mount: ipimap:0x%p", ipimap);
+
+	/* map further access of per fileset inodes by the fileset inode */
+	sbi->ipimap = ipimap;
+
+	/* initialize fileset inode allocation map */
+	if ((rc = diMount(ipimap))) {
+		jfs_err("jfs_mount: diMount failed w/rc = %d", rc);
+		goto errout41;
+	}
+
+	goto out;
+
+	/*
+	 *      unwind on error
+	 */
+      errout41:		/* close fileset inode allocation map inode */
+	diFreeSpecial(ipimap);
+
+      errout40:		/* fileset closed */
+
+	/* close secondary aggregate inode allocation map */
+	if (ipaimap2) {
+		diUnmount(ipaimap2, 1);
+		diFreeSpecial(ipaimap2);
+	}
+
+      errout35:
+
+	/* close aggregate block allocation map */
+	dbUnmount(ipbmap, 1);
+	diFreeSpecial(ipbmap);
+
+      errout22:		/* close aggregate inode allocation map */
+
+	diUnmount(ipaimap, 1);
+
+      errout21:		/* close aggregate inodes */
+	diFreeSpecial(ipaimap);
+      errout20:		/* aggregate closed */
+
+      out:
+
+	if (rc)
+		jfs_err("Mount JFS Failure: %d", rc);
+
+	return rc;
+}
+
+/*
+ * NAME:	jfs_mount_rw(sb, remount)
+ *
+ * FUNCTION:	Completes read-write mount, or remounts read-only volume
+ *		as read-write
+ */
+int jfs_mount_rw(struct super_block *sb, int remount)
+{
+	struct jfs_sb_info *sbi = JFS_SBI(sb);  
+	struct jfs_log *log;
+	int rc;
+
+	/*
+	 * If we are re-mounting a previously read-only volume, we want to
+	 * re-read the inode and block maps, since fsck.jfs may have updated
+	 * them.
+	 */
+	if (remount) {
+		if (chkSuper(sb) || (sbi->state != FM_CLEAN))
+			return -EINVAL;
+
+		truncate_inode_pages(sbi->ipimap->i_mapping, 0);
+		truncate_inode_pages(sbi->ipbmap->i_mapping, 0);
+		diUnmount(sbi->ipimap, 1);
+		if ((rc = diMount(sbi->ipimap))) {
+			jfs_err("jfs_mount_rw: diMount failed!");
+			return rc;
+		}
+
+		dbUnmount(sbi->ipbmap, 1);
+		if ((rc = dbMount(sbi->ipbmap))) {
+			jfs_err("jfs_mount_rw: dbMount failed!");
+			return rc;
+		}
+	}
+
+	/*
+	 * open/initialize log
+	 */
+	if ((rc = lmLogOpen(sb, &log)))
+		return rc;
+
+	JFS_SBI(sb)->log = log;
+
+	/*
+	 * update file system superblock;
+	 */
+	if ((rc = updateSuper(sb, FM_MOUNT))) {
+		jfs_err("jfs_mount: updateSuper failed w/rc = %d", rc);
+		lmLogClose(sb, log);
+		JFS_SBI(sb)->log = 0;
+		return rc;
+	}
+
+	/*
+	 * write MOUNT log record of the file system
+	 */
+	logMOUNT(sb);
+
+	return rc;
+}
+
+/*
+ *	chkSuper()
+ *
+ * validate the superblock of the file system to be mounted and 
+ * get the file system parameters.
+ *
+ * returns
+ *	0 with fragsize set if check successful
+ *	error code if not successful
+ */
+static int chkSuper(struct super_block *sb)
+{
+	int rc = 0;
+	struct jfs_sb_info *sbi = JFS_SBI(sb);
+	struct jfs_superblock *j_sb;
+	struct buffer_head *bh;
+	int AIM_bytesize, AIT_bytesize;
+	int expected_AIM_bytesize, expected_AIT_bytesize;
+	s64 AIM_byte_addr, AIT_byte_addr, fsckwsp_addr;
+	s64 byte_addr_diff0, byte_addr_diff1;
+	s32 bsize;
+
+	if ((rc = readSuper(sb, &bh)))
+		return rc;
+	j_sb = (struct jfs_superblock *)bh->b_data;
+
+	/*
+	 * validate superblock
+	 */
+	/* validate fs signature */
+	if (strncmp(j_sb->s_magic, JFS_MAGIC, 4) ||
+	    le32_to_cpu(j_sb->s_version) > JFS_VERSION) {
+		rc = -EINVAL;
+		goto out;
+	}
+
+	bsize = le32_to_cpu(j_sb->s_bsize);
+#ifdef _JFS_4K
+	if (bsize != PSIZE) {
+		jfs_err("Currently only 4K block size supported!");
+		rc = -EINVAL;
+		goto out;
+	}
+#endif				/* _JFS_4K */
+
+	jfs_info("superblock: flag:0x%08x state:0x%08x size:0x%Lx",
+		 le32_to_cpu(j_sb->s_flag), le32_to_cpu(j_sb->s_state),
+		 (unsigned long long) le64_to_cpu(j_sb->s_size));
+
+	/* validate the descriptors for Secondary AIM and AIT */
+	if ((j_sb->s_flag & cpu_to_le32(JFS_BAD_SAIT)) !=
+	    cpu_to_le32(JFS_BAD_SAIT)) {
+		expected_AIM_bytesize = 2 * PSIZE;
+		AIM_bytesize = lengthPXD(&(j_sb->s_aim2)) * bsize;
+		expected_AIT_bytesize = 4 * PSIZE;
+		AIT_bytesize = lengthPXD(&(j_sb->s_ait2)) * bsize;
+		AIM_byte_addr = addressPXD(&(j_sb->s_aim2)) * bsize;
+		AIT_byte_addr = addressPXD(&(j_sb->s_ait2)) * bsize;
+		byte_addr_diff0 = AIT_byte_addr - AIM_byte_addr;
+		fsckwsp_addr = addressPXD(&(j_sb->s_fsckpxd)) * bsize;
+		byte_addr_diff1 = fsckwsp_addr - AIT_byte_addr;
+		if ((AIM_bytesize != expected_AIM_bytesize) ||
+		    (AIT_bytesize != expected_AIT_bytesize) ||
+		    (byte_addr_diff0 != AIM_bytesize) ||
+		    (byte_addr_diff1 <= AIT_bytesize))
+			j_sb->s_flag |= cpu_to_le32(JFS_BAD_SAIT);
+	}
+
+	if ((j_sb->s_flag & cpu_to_le32(JFS_GROUPCOMMIT)) !=
+	    cpu_to_le32(JFS_GROUPCOMMIT))
+		j_sb->s_flag |= cpu_to_le32(JFS_GROUPCOMMIT);
+
+	/* validate fs state */
+	if (j_sb->s_state != cpu_to_le32(FM_CLEAN) &&
+	    !(sb->s_flags & MS_RDONLY)) {
+		jfs_err("jfs_mount: Mount Failure: File System Dirty.");
+		rc = -EINVAL;
+		goto out;
+	}
+
+	sbi->state = le32_to_cpu(j_sb->s_state);
+	sbi->mntflag = le32_to_cpu(j_sb->s_flag);
+
+	/*
+	 * JFS always does I/O by 4K pages.  Don't tell the buffer cache
+	 * that we use anything else (leave s_blocksize alone).
+	 */
+	sbi->bsize = bsize;
+	sbi->l2bsize = le16_to_cpu(j_sb->s_l2bsize);
+
+	/*
+	 * For now, ignore s_pbsize, l2bfactor.  All I/O going through buffer
+	 * cache.
+	 */
+	sbi->nbperpage = PSIZE >> sbi->l2bsize;
+	sbi->l2nbperpage = L2PSIZE - sbi->l2bsize;
+	sbi->l2niperblk = sbi->l2bsize - L2DISIZE;
+	if (sbi->mntflag & JFS_INLINELOG)
+		sbi->logpxd = j_sb->s_logpxd;
+	else {
+		sbi->logdev = to_kdev_t(le32_to_cpu(j_sb->s_logdev));
+		memcpy(sbi->uuid, j_sb->s_uuid, sizeof(sbi->uuid));
+		memcpy(sbi->loguuid, j_sb->s_loguuid, sizeof(sbi->uuid));
+	}
+	sbi->fsckpxd = j_sb->s_fsckpxd;
+	sbi->ait2 = j_sb->s_ait2;
+
+      out:
+	brelse(bh);
+	return rc;
+}
+
+
+/*
+ *	updateSuper()
+ *
+ * update synchronously superblock if it is mounted read-write.
+ */
+int updateSuper(struct super_block *sb, uint state)
+{
+	struct jfs_superblock *j_sb;
+	struct jfs_sb_info *sbi = JFS_SBI(sb);
+	struct buffer_head *bh;
+	int rc;
+
+	if (sbi->flag & JFS_NOINTEGRITY) {
+		if (state == FM_DIRTY) {
+			sbi->p_state = state;
+			return 0;
+		} else if (state == FM_MOUNT) {
+			sbi->p_state = sbi->state;
+			state = FM_DIRTY;
+		} else if (state == FM_CLEAN) {
+			state = sbi->p_state;
+		} else
+			jfs_err("updateSuper: bad state");
+	} else if (sbi->state == FM_DIRTY)
+		return 0;
+	
+	if ((rc = readSuper(sb, &bh)))
+		return rc;
+
+	j_sb = (struct jfs_superblock *)bh->b_data;
+
+	j_sb->s_state = cpu_to_le32(state);
+	sbi->state = state;
+
+	if (state == FM_MOUNT) {
+		/* record log's dev_t and mount serial number */
+		j_sb->s_logdev = cpu_to_le32(sbi->log->bdev->bd_dev);
+		j_sb->s_logserial = cpu_to_le32(sbi->log->serial);
+	} else if (state == FM_CLEAN) {
+		/*
+		 * If this volume is shared with OS/2, OS/2 will need to
+		 * recalculate DASD usage, since we don't deal with it.
+		 */
+		if (j_sb->s_flag & cpu_to_le32(JFS_DASD_ENABLED))
+			j_sb->s_flag |= cpu_to_le32(JFS_DASD_PRIME);
+	}
+
+	mark_buffer_dirty(bh);
+	ll_rw_block(WRITE, 1, &bh);
+	wait_on_buffer(bh);
+	brelse(bh);
+
+	return 0;
+}
+
+
+/*
+ *	readSuper()
+ *
+ * read superblock by raw sector address
+ */
+int readSuper(struct super_block *sb, struct buffer_head **bpp)
+{
+	/* read in primary superblock */
+	*bpp = sb_bread(sb, SUPER1_OFF >> sb->s_blocksize_bits);
+	if (*bpp)
+		return 0;
+
+	/* read in secondary/replicated superblock */
+	*bpp = sb_bread(sb, SUPER2_OFF >> sb->s_blocksize_bits);
+	if (*bpp)
+		return 0;
+
+	return -EIO;
+}
+
+
+/*
+ *	logMOUNT()
+ *
+ * function: write a MOUNT log record for file system.
+ *
+ * MOUNT record keeps logredo() from processing log records
+ * for this file system past this point in log.
+ * it is harmless if mount fails.
+ *
+ * note: MOUNT record is at aggregate level, not at fileset level, 
+ * since log records of previous mounts of a fileset
+ * (e.g., AFTER record of extent allocation) have to be processed 
+ * to update block allocation map at aggregate level.
+ */
+static int logMOUNT(struct super_block *sb)
+{
+	struct jfs_log *log = JFS_SBI(sb)->log;
+	struct lrd lrd;
+
+	lrd.logtid = 0;
+	lrd.backchain = 0;
+	lrd.type = cpu_to_le16(LOG_MOUNT);
+	lrd.length = 0;
+	lrd.aggregate = cpu_to_le32(kdev_t_to_nr(sb->s_dev));
+	lmLog(log, NULL, &lrd, NULL);
+
+	return 0;
+}
diff --git a/fs/jfs/jfs_superblock.h b/fs/jfs/jfs_superblock.h
new file mode 100644
index 00000000000000..5a558ce3e81d1b
--- /dev/null
+++ b/fs/jfs/jfs_superblock.h
@@ -0,0 +1,113 @@
+/*
+ *   Copyright (C) International Business Machines Corp., 2000-2003
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef	_H_JFS_SUPERBLOCK
+#define _H_JFS_SUPERBLOCK
+
+/*
+ * make the magic number something a human could read
+ */
+#define JFS_MAGIC 	"JFS1"	/* Magic word */
+
+#define JFS_VERSION	2	/* Version number: Version 2 */
+
+#define LV_NAME_SIZE	11	/* MUST BE 11 for OS/2 boot sector */
+
+/* 
+ *	aggregate superblock 
+ *
+ * The name superblock is too close to super_block, so the name has been
+ * changed to jfs_superblock.  The utilities are still using the old name.
+ */
+struct jfs_superblock {
+	char s_magic[4];	/* 4: magic number */
+	u32 s_version;		/* 4: version number */
+
+	s64 s_size;		/* 8: aggregate size in hardware/LVM blocks;
+				 * VFS: number of blocks
+				 */
+	s32 s_bsize;		/* 4: aggregate block size in bytes; 
+				 * VFS: fragment size
+				 */
+	s16 s_l2bsize;		/* 2: log2 of s_bsize */
+	s16 s_l2bfactor;	/* 2: log2(s_bsize/hardware block size) */
+	s32 s_pbsize;		/* 4: hardware/LVM block size in bytes */
+	s16 s_l2pbsize;		/* 2: log2 of s_pbsize */
+	s16 pad;		/* 2: padding necessary for alignment */
+
+	u32 s_agsize;		/* 4: allocation group size in aggr. blocks */
+
+	u32 s_flag;		/* 4: aggregate attributes:
+				 *    see jfs_filsys.h
+				 */
+	u32 s_state;		/* 4: mount/unmount/recovery state: 
+				 *    see jfs_filsys.h
+				 */
+	s32 s_compress;		/* 4: > 0 if data compression */
+
+	pxd_t s_ait2;		/* 8: first extent of secondary
+				 *    aggregate inode table
+				 */
+
+	pxd_t s_aim2;		/* 8: first extent of secondary
+				 *    aggregate inode map
+				 */
+	u32 s_logdev;		/* 4: device address of log */
+	s32 s_logserial;	/* 4: log serial number at aggregate mount */
+	pxd_t s_logpxd;		/* 8: inline log extent */
+
+	pxd_t s_fsckpxd;	/* 8: inline fsck work space extent */
+
+	struct timestruc_t s_time;	/* 8: time last updated */
+
+	s32 s_fsckloglen;	/* 4: Number of filesystem blocks reserved for
+				 *    the fsck service log.  
+				 *    N.B. These blocks are divided among the
+				 *         versions kept.  This is not a per
+				 *         version size.
+				 *    N.B. These blocks are included in the 
+				 *         length field of s_fsckpxd.
+				 */
+	s8 s_fscklog;		/* 1: which fsck service log is most recent
+				 *    0 => no service log data yet
+				 *    1 => the first one
+				 *    2 => the 2nd one
+				 */
+	char s_fpack[11];	/* 11: file system volume name 
+				 *     N.B. This must be 11 bytes to
+				 *          conform with the OS/2 BootSector
+				 *          requirements
+				 *          Only used when s_version is 1
+				 */
+
+	/* extendfs() parameter under s_state & FM_EXTENDFS */
+	s64 s_xsize;		/* 8: extendfs s_size */
+	pxd_t s_xfsckpxd;	/* 8: extendfs fsckpxd */
+	pxd_t s_xlogpxd;	/* 8: extendfs logpxd */
+	/* - 128 byte boundary - */
+
+	char s_uuid[16];	/* 16: 128-bit uuid for volume */
+	char s_label[16];	/* 16: volume label */
+	char s_loguuid[16];	/* 16: 128-bit uuid for log device */
+
+};
+
+extern int readSuper(struct super_block *, struct buffer_head **);
+extern int updateSuper(struct super_block *, uint);
+extern void jfs_error(struct super_block *, const char *, ...);
+
+#endif /*_H_JFS_SUPERBLOCK */
diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c
new file mode 100644
index 00000000000000..62e649341823e4
--- /dev/null
+++ b/fs/jfs/jfs_txnmgr.c
@@ -0,0 +1,3080 @@
+/*
+ *   Copyright (C) International Business Machines Corp., 2000-2004
+ *   Portions Copyright (C) Christoph Hellwig, 2001-2002
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/*
+ *      jfs_txnmgr.c: transaction manager
+ *
+ * notes:
+ * transaction starts with txBegin() and ends with txCommit()
+ * or txAbort().
+ *
+ * tlock is acquired at the time of update;
+ * (obviate scan at commit time for xtree and dtree)
+ * tlock and mp points to each other;
+ * (no hashlist for mp -> tlock).
+ *
+ * special cases:
+ * tlock on in-memory inode:
+ * in-place tlock in the in-memory inode itself;
+ * converted to page lock by iWrite() at commit time.
+ *
+ * tlock during write()/mmap() under anonymous transaction (tid = 0):
+ * transferred (?) to transaction at commit time.
+ *
+ * use the page itself to update allocation maps
+ * (obviate intermediate replication of allocation/deallocation data)
+ * hold on to mp+lock thru update of maps
+ */
+
+
+#include <linux/fs.h>
+#include <linux/vmalloc.h>
+#include <linux/smp_lock.h>
+#include <linux/completion.h>
+#include "jfs_incore.h"
+#include "jfs_filsys.h"
+#include "jfs_metapage.h"
+#include "jfs_dinode.h"
+#include "jfs_imap.h"
+#include "jfs_dmap.h"
+#include "jfs_superblock.h"
+#include "jfs_debug.h"
+
+/*
+ *      transaction management structures
+ */
+static struct {
+	/* tblock */
+	int freetid;		/* index of a free tid structure */
+	wait_queue_head_t freewait;	/* eventlist of free tblock */
+
+	/* tlock */
+	int freelock;		/* index first free lock word */
+	wait_queue_head_t freelockwait;	/* eventlist of free tlock */
+	wait_queue_head_t lowlockwait;	/* eventlist of ample tlocks */
+	int tlocksInUse;	/* Number of tlocks in use */
+	int TlocksLow;		/* Indicates low number of available tlocks */
+	spinlock_t LazyLock;	/* synchronize sync_queue & unlock_queue */
+/*	struct tblock *sync_queue; * Transactions waiting for data sync */
+	struct tblock *unlock_queue;	/* Txns waiting to be released */
+	struct tblock *unlock_tail;	/* Tail of unlock_queue */
+	struct list_head anon_list;	/* inodes having anonymous txns */
+	struct list_head anon_list2;	/* inodes having anonymous txns
+					   that couldn't be sync'ed */
+} TxAnchor;
+
+#ifdef CONFIG_JFS_STATISTICS
+struct {
+	uint txBegin;
+	uint txBegin_barrier;
+	uint txBegin_lockslow;
+	uint txBegin_freetid;
+	uint txBeginAnon;
+	uint txBeginAnon_barrier;
+	uint txBeginAnon_lockslow;
+	uint txLockAlloc;
+	uint txLockAlloc_freelock;
+} TxStat;
+#endif
+
+static int nTxBlock = 512;	/* number of transaction blocks */
+struct tblock *TxBlock;	        /* transaction block table */
+
+static int nTxLock = 4096;	/* number of transaction locks */
+static int TxLockLWM = 4096*.4;	/* Low water mark for number of txLocks used */
+static int TxLockHWM = 4096*.8;	/* High water mark for number of txLocks used */
+struct tlock *TxLock;           /* transaction lock table */
+
+
+/*
+ *      transaction management lock
+ */
+static spinlock_t jfsTxnLock = SPIN_LOCK_UNLOCKED;
+
+#define TXN_LOCK()              spin_lock(&jfsTxnLock)
+#define TXN_UNLOCK()            spin_unlock(&jfsTxnLock)
+
+#define LAZY_LOCK_INIT()	spin_lock_init(&TxAnchor.LazyLock);
+#define LAZY_LOCK(flags)	spin_lock_irqsave(&TxAnchor.LazyLock, flags)
+#define LAZY_UNLOCK(flags) spin_unlock_irqrestore(&TxAnchor.LazyLock, flags)
+
+DECLARE_WAIT_QUEUE_HEAD(jfs_sync_thread_wait);
+DECLARE_WAIT_QUEUE_HEAD(jfs_commit_thread_wait);
+
+/*
+ * Retry logic exist outside these macros to protect from spurrious wakeups.
+ */
+static inline void TXN_SLEEP_DROP_LOCK(wait_queue_head_t * event)
+{
+	DECLARE_WAITQUEUE(wait, current);
+
+	add_wait_queue(event, &wait);
+	set_current_state(TASK_UNINTERRUPTIBLE);
+	TXN_UNLOCK();
+	schedule();
+	current->state = TASK_RUNNING;
+	remove_wait_queue(event, &wait);
+}
+
+#define TXN_SLEEP(event)\
+{\
+	TXN_SLEEP_DROP_LOCK(event);\
+	TXN_LOCK();\
+}
+
+#define TXN_WAKEUP(event) wake_up_all(event)
+
+
+/*
+ *      statistics
+ */
+struct {
+	tid_t maxtid;		/* 4: biggest tid ever used */
+	lid_t maxlid;		/* 4: biggest lid ever used */
+	int ntid;		/* 4: # of transactions performed */
+	int nlid;		/* 4: # of tlocks acquired */
+	int waitlock;		/* 4: # of tlock wait */
+} stattx;
+
+
+/*
+ * external references
+ */
+extern int lmGroupCommit(struct jfs_log *, struct tblock *);
+extern void lmSync(struct jfs_log *);
+extern int jfs_commit_inode(struct inode *, int);
+extern int jfs_stop_threads;
+
+struct task_struct *jfsCommitTask;
+extern struct completion jfsIOwait;
+
+/*
+ * forward references
+ */
+static int diLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
+		struct tlock * tlck, struct commit * cd);
+static int dataLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
+		struct tlock * tlck);
+static void dtLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
+		struct tlock * tlck);
+static void mapLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
+		struct tlock * tlck);
+static void txAllocPMap(struct inode *ip, struct maplock * maplock,
+		struct tblock * tblk);
+static void txForce(struct tblock * tblk);
+static int txLog(struct jfs_log * log, struct tblock * tblk,
+		struct commit * cd);
+static void txUpdateMap(struct tblock * tblk);
+static void txRelease(struct tblock * tblk);
+static void xtLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
+	   struct tlock * tlck);
+static void LogSyncRelease(struct metapage * mp);
+
+/*
+ *              transaction block/lock management
+ *              ---------------------------------
+ */
+
+/*
+ * Get a transaction lock from the free list.  If the number in use is
+ * greater than the high water mark, wake up the sync daemon.  This should
+ * free some anonymous transaction locks.  (TXN_LOCK must be held.)
+ */
+static lid_t txLockAlloc(void)
+{
+	lid_t lid;
+
+	INCREMENT(TxStat.txLockAlloc);
+	if (!TxAnchor.freelock) {
+		INCREMENT(TxStat.txLockAlloc_freelock);
+	}
+
+	while (!(lid = TxAnchor.freelock))
+		TXN_SLEEP(&TxAnchor.freelockwait);
+	TxAnchor.freelock = TxLock[lid].next;
+	HIGHWATERMARK(stattx.maxlid, lid);
+	if ((++TxAnchor.tlocksInUse > TxLockHWM) && (TxAnchor.TlocksLow == 0)) {
+		jfs_info("txLockAlloc TlocksLow");
+		TxAnchor.TlocksLow = 1;
+		wake_up(&jfs_sync_thread_wait);
+	}
+
+	return lid;
+}
+
+static void txLockFree(lid_t lid)
+{
+	TxLock[lid].next = TxAnchor.freelock;
+	TxAnchor.freelock = lid;
+	TxAnchor.tlocksInUse--;
+	if (TxAnchor.TlocksLow && (TxAnchor.tlocksInUse < TxLockLWM)) {
+		jfs_info("txLockFree TlocksLow no more");
+		TxAnchor.TlocksLow = 0;
+		TXN_WAKEUP(&TxAnchor.lowlockwait);
+	}
+	TXN_WAKEUP(&TxAnchor.freelockwait);
+}
+
+/*
+ * NAME:        txInit()
+ *
+ * FUNCTION:    initialize transaction management structures
+ *
+ * RETURN:
+ *
+ * serialization: single thread at jfs_init()
+ */
+int txInit(void)
+{
+	int k, size;
+
+	/*
+	 * initialize transaction block (tblock) table
+	 *
+	 * transaction id (tid) = tblock index
+	 * tid = 0 is reserved.
+	 */
+	size = sizeof(struct tblock) * nTxBlock;
+	TxBlock = (struct tblock *) vmalloc(size);
+	if (TxBlock == NULL)
+		return -ENOMEM;
+
+	for (k = 1; k < nTxBlock - 1; k++) {
+		TxBlock[k].next = k + 1;
+		init_waitqueue_head(&TxBlock[k].gcwait);
+		init_waitqueue_head(&TxBlock[k].waitor);
+	}
+	TxBlock[k].next = 0;
+	init_waitqueue_head(&TxBlock[k].gcwait);
+	init_waitqueue_head(&TxBlock[k].waitor);
+
+	TxAnchor.freetid = 1;
+	init_waitqueue_head(&TxAnchor.freewait);
+
+	stattx.maxtid = 1;	/* statistics */
+
+	/*
+	 * initialize transaction lock (tlock) table
+	 *
+	 * transaction lock id = tlock index
+	 * tlock id = 0 is reserved.
+	 */
+	size = sizeof(struct tlock) * nTxLock;
+	TxLock = (struct tlock *) vmalloc(size);
+	if (TxLock == NULL) {
+		vfree(TxBlock);
+		return -ENOMEM;
+	}
+
+	/* initialize tlock table */
+	for (k = 1; k < nTxLock - 1; k++)
+		TxLock[k].next = k + 1;
+	TxLock[k].next = 0;
+	init_waitqueue_head(&TxAnchor.freelockwait);
+	init_waitqueue_head(&TxAnchor.lowlockwait);
+
+	TxAnchor.freelock = 1;
+	TxAnchor.tlocksInUse = 0;
+	INIT_LIST_HEAD(&TxAnchor.anon_list);
+	INIT_LIST_HEAD(&TxAnchor.anon_list2);
+
+	stattx.maxlid = 1;	/* statistics */
+
+	return 0;
+}
+
+/*
+ * NAME:        txExit()
+ *
+ * FUNCTION:    clean up when module is unloaded
+ */
+void txExit(void)
+{
+	vfree(TxLock);
+	TxLock = 0;
+	vfree(TxBlock);
+	TxBlock = 0;
+}
+
+
+/*
+ * NAME:        txBegin()
+ *
+ * FUNCTION:    start a transaction.
+ *
+ * PARAMETER:   sb	- superblock
+ *              flag	- force for nested tx;
+ *
+ * RETURN:	tid	- transaction id
+ *
+ * note: flag force allows to start tx for nested tx
+ * to prevent deadlock on logsync barrier;
+ */
+tid_t txBegin(struct super_block *sb, int flag)
+{
+	tid_t t;
+	struct tblock *tblk;
+	struct jfs_log *log;
+
+	jfs_info("txBegin: flag = 0x%x", flag);
+	log = JFS_SBI(sb)->log;
+
+	TXN_LOCK();
+
+	INCREMENT(TxStat.txBegin);
+
+      retry:
+	if (!(flag & COMMIT_FORCE)) {
+		/*
+		 * synchronize with logsync barrier
+		 */
+		if (test_bit(log_SYNCBARRIER, &log->flag) ||
+		    test_bit(log_QUIESCE, &log->flag)) {
+			INCREMENT(TxStat.txBegin_barrier);
+			TXN_SLEEP(&log->syncwait);
+			goto retry;
+		}
+	}
+	if (flag == 0) {
+		/*
+		 * Don't begin transaction if we're getting starved for tlocks
+		 * unless COMMIT_FORCE or COMMIT_INODE (which may ultimately
+		 * free tlocks)
+		 */
+		if (TxAnchor.TlocksLow) {
+			INCREMENT(TxStat.txBegin_lockslow);
+			TXN_SLEEP(&TxAnchor.lowlockwait);
+			goto retry;
+		}
+	}
+
+	/*
+	 * allocate transaction id/block
+	 */
+	if ((t = TxAnchor.freetid) == 0) {
+		jfs_info("txBegin: waiting for free tid");
+		INCREMENT(TxStat.txBegin_freetid);
+		TXN_SLEEP(&TxAnchor.freewait);
+		goto retry;
+	}
+
+	tblk = tid_to_tblock(t);
+
+	if ((tblk->next == 0) && !(flag & COMMIT_FORCE)) {
+		/* Don't let a non-forced transaction take the last tblk */
+		jfs_info("txBegin: waiting for free tid");
+		INCREMENT(TxStat.txBegin_freetid);
+		TXN_SLEEP(&TxAnchor.freewait);
+		goto retry;
+	}
+
+	TxAnchor.freetid = tblk->next;
+
+	/*
+	 * initialize transaction
+	 */
+
+	/*
+	 * We can't zero the whole thing or we screw up another thread being
+	 * awakened after sleeping on tblk->waitor
+	 *
+	 * memset(tblk, 0, sizeof(struct tblock));
+	 */
+	tblk->next = tblk->last = tblk->xflag = tblk->flag = tblk->lsn = 0;
+
+	tblk->sb = sb;
+	++log->logtid;
+	tblk->logtid = log->logtid;
+
+	++log->active;
+
+	HIGHWATERMARK(stattx.maxtid, t);	/* statistics */
+	INCREMENT(stattx.ntid);	/* statistics */
+
+	TXN_UNLOCK();
+
+	jfs_info("txBegin: returning tid = %d", t);
+
+	return t;
+}
+
+
+/*
+ * NAME:        txBeginAnon()
+ *
+ * FUNCTION:    start an anonymous transaction.
+ *		Blocks if logsync or available tlocks are low to prevent
+ *		anonymous tlocks from depleting supply.
+ *
+ * PARAMETER:   sb	- superblock
+ *
+ * RETURN:	none
+ */
+void txBeginAnon(struct super_block *sb)
+{
+	struct jfs_log *log;
+
+	log = JFS_SBI(sb)->log;
+
+	TXN_LOCK();
+	INCREMENT(TxStat.txBeginAnon);
+
+      retry:
+	/*
+	 * synchronize with logsync barrier
+	 */
+	if (test_bit(log_SYNCBARRIER, &log->flag) ||
+	    test_bit(log_QUIESCE, &log->flag)) {
+		INCREMENT(TxStat.txBeginAnon_barrier);
+		TXN_SLEEP(&log->syncwait);
+		goto retry;
+	}
+
+	/*
+	 * Don't begin transaction if we're getting starved for tlocks
+	 */
+	if (TxAnchor.TlocksLow) {
+		INCREMENT(TxStat.txBeginAnon_lockslow);
+		TXN_SLEEP(&TxAnchor.lowlockwait);
+		goto retry;
+	}
+	TXN_UNLOCK();
+}
+
+
+/*
+ *      txEnd()
+ *
+ * function: free specified transaction block.
+ *
+ *      logsync barrier processing:
+ *
+ * serialization:
+ */
+void txEnd(tid_t tid)
+{
+	struct tblock *tblk = tid_to_tblock(tid);
+	struct jfs_log *log;
+
+	jfs_info("txEnd: tid = %d", tid);
+	TXN_LOCK();
+
+	/*
+	 * wakeup transactions waiting on the page locked
+	 * by the current transaction
+	 */
+	TXN_WAKEUP(&tblk->waitor);
+
+	log = JFS_SBI(tblk->sb)->log;
+
+	/*
+	 * Lazy commit thread can't free this guy until we mark it UNLOCKED,
+	 * otherwise, we would be left with a transaction that may have been
+	 * reused.
+	 *
+	 * Lazy commit thread will turn off tblkGC_LAZY before calling this
+	 * routine.
+	 */
+	if (tblk->flag & tblkGC_LAZY) {
+		jfs_info("txEnd called w/lazy tid: %d, tblk = 0x%p", tid, tblk);
+		TXN_UNLOCK();
+
+		spin_lock_irq(&log->gclock);	// LOGGC_LOCK
+		tblk->flag |= tblkGC_UNLOCKED;
+		spin_unlock_irq(&log->gclock);	// LOGGC_UNLOCK
+		return;
+	}
+
+	jfs_info("txEnd: tid: %d, tblk = 0x%p", tid, tblk);
+
+	assert(tblk->next == 0);
+
+	/*
+	 * insert tblock back on freelist
+	 */
+	tblk->next = TxAnchor.freetid;
+	TxAnchor.freetid = tid;
+
+	/*
+	 * mark the tblock not active
+	 */
+	if (--log->active == 0) {
+		clear_bit(log_FLUSH, &log->flag);
+
+		/*
+		 * synchronize with logsync barrier
+		 */
+		if (test_bit(log_SYNCBARRIER, &log->flag)) {
+			/* forward log syncpt */
+			/* lmSync(log); */
+
+			jfs_info("log barrier off: 0x%x", log->lsn);
+
+			/* enable new transactions start */
+			clear_bit(log_SYNCBARRIER, &log->flag);
+
+			/* wakeup all waitors for logsync barrier */
+			TXN_WAKEUP(&log->syncwait);
+		}
+	}
+
+	/*
+	 * wakeup all waitors for a free tblock
+	 */
+	TXN_WAKEUP(&TxAnchor.freewait);
+
+	TXN_UNLOCK();
+}
+
+
+/*
+ *      txLock()
+ *
+ * function: acquire a transaction lock on the specified <mp>
+ *
+ * parameter:
+ *
+ * return:      transaction lock id
+ *
+ * serialization:
+ */
+struct tlock *txLock(tid_t tid, struct inode *ip, struct metapage * mp,
+		     int type)
+{
+	struct jfs_inode_info *jfs_ip = JFS_IP(ip);
+	int dir_xtree = 0;
+	lid_t lid;
+	tid_t xtid;
+	struct tlock *tlck;
+	struct xtlock *xtlck;
+	struct linelock *linelock;
+	xtpage_t *p;
+	struct tblock *tblk;
+
+	assert(!test_cflag(COMMIT_Nolink, ip));
+
+	TXN_LOCK();
+
+	if (S_ISDIR(ip->i_mode) && (type & tlckXTREE) &&
+	    !(mp->xflag & COMMIT_PAGE)) {
+		/*
+		 * Directory inode is special.  It can have both an xtree tlock
+		 * and a dtree tlock associated with it.
+		 */
+		dir_xtree = 1;
+		lid = jfs_ip->xtlid;
+	} else
+		lid = mp->lid;
+
+	/* is page not locked by a transaction ? */
+	if (lid == 0)
+		goto allocateLock;
+
+	jfs_info("txLock: tid:%d ip:0x%p mp:0x%p lid:%d", tid, ip, mp, lid);
+
+	/* is page locked by the requester transaction ? */
+	tlck = lid_to_tlock(lid);
+	if ((xtid = tlck->tid) == tid)
+		goto grantLock;
+
+	/*
+	 * is page locked by anonymous transaction/lock ?
+	 *
+	 * (page update without transaction (i.e., file write) is
+	 * locked under anonymous transaction tid = 0:
+	 * anonymous tlocks maintained on anonymous tlock list of
+	 * the inode of the page and available to all anonymous
+	 * transactions until txCommit() time at which point
+	 * they are transferred to the transaction tlock list of
+	 * the commiting transaction of the inode)
+	 */
+	if (xtid == 0) {
+		tlck->tid = tid;
+		tblk = tid_to_tblock(tid);
+		/*
+		 * The order of the tlocks in the transaction is important
+		 * (during truncate, child xtree pages must be freed before
+		 * parent's tlocks change the working map).
+		 * Take tlock off anonymous list and add to tail of
+		 * transaction list
+		 *
+		 * Note:  We really need to get rid of the tid & lid and
+		 * use list_head's.  This code is getting UGLY!
+		 */
+		if (jfs_ip->atlhead == lid) {
+			if (jfs_ip->atltail == lid) {
+				/* only anonymous txn.
+				 * Remove from anon_list
+				 */
+				list_del_init(&jfs_ip->anon_inode_list);
+			}
+			jfs_ip->atlhead = tlck->next;
+		} else {
+			lid_t last;
+			for (last = jfs_ip->atlhead;
+			     lid_to_tlock(last)->next != lid;
+			     last = lid_to_tlock(last)->next) {
+				assert(last);
+			}
+			lid_to_tlock(last)->next = tlck->next;
+			if (jfs_ip->atltail == lid)
+				jfs_ip->atltail = last;
+		}
+
+		/* insert the tlock at tail of transaction tlock list */
+
+		if (tblk->next)
+			lid_to_tlock(tblk->last)->next = lid;
+		else
+			tblk->next = lid;
+		tlck->next = 0;
+		tblk->last = lid;
+
+		goto grantLock;
+	}
+
+	goto waitLock;
+
+	/*
+	 * allocate a tlock
+	 */
+      allocateLock:
+	lid = txLockAlloc();
+	tlck = lid_to_tlock(lid);
+
+	/*
+	 * initialize tlock
+	 */
+	tlck->tid = tid;
+
+	/* mark tlock for meta-data page */
+	if (mp->xflag & COMMIT_PAGE) {
+
+		tlck->flag = tlckPAGELOCK;
+
+		/* mark the page dirty and nohomeok */
+		mark_metapage_dirty(mp);
+		atomic_inc(&mp->nohomeok);
+
+		jfs_info("locking mp = 0x%p, nohomeok = %d tid = %d tlck = 0x%p",
+			 mp, atomic_read(&mp->nohomeok), tid, tlck);
+
+		/* if anonymous transaction, and buffer is on the group
+		 * commit synclist, mark inode to show this.  This will
+		 * prevent the buffer from being marked nohomeok for too
+		 * long a time.
+		 */
+		if ((tid == 0) && mp->lsn)
+			set_cflag(COMMIT_Synclist, ip);
+	}
+	/* mark tlock for in-memory inode */
+	else
+		tlck->flag = tlckINODELOCK;
+
+	tlck->type = 0;
+
+	/* bind the tlock and the page */
+	tlck->ip = ip;
+	tlck->mp = mp;
+	if (dir_xtree)
+		jfs_ip->xtlid = lid;
+	else
+		mp->lid = lid;
+
+	/*
+	 * enqueue transaction lock to transaction/inode
+	 */
+	/* insert the tlock at tail of transaction tlock list */
+	if (tid) {
+		tblk = tid_to_tblock(tid);
+		if (tblk->next)
+			lid_to_tlock(tblk->last)->next = lid;
+		else
+			tblk->next = lid;
+		tlck->next = 0;
+		tblk->last = lid;
+	}
+	/* anonymous transaction:
+	 * insert the tlock at head of inode anonymous tlock list
+	 */
+	else {
+		tlck->next = jfs_ip->atlhead;
+		jfs_ip->atlhead = lid;
+		if (tlck->next == 0) {
+			/* This inode's first anonymous transaction */
+			jfs_ip->atltail = lid;
+			list_add_tail(&jfs_ip->anon_inode_list,
+				      &TxAnchor.anon_list);
+		}
+	}
+
+	/* initialize type dependent area for linelock */
+	linelock = (struct linelock *) & tlck->lock;
+	linelock->next = 0;
+	linelock->flag = tlckLINELOCK;
+	linelock->maxcnt = TLOCKSHORT;
+	linelock->index = 0;
+
+	switch (type & tlckTYPE) {
+	case tlckDTREE:
+		linelock->l2linesize = L2DTSLOTSIZE;
+		break;
+
+	case tlckXTREE:
+		linelock->l2linesize = L2XTSLOTSIZE;
+
+		xtlck = (struct xtlock *) linelock;
+		xtlck->header.offset = 0;
+		xtlck->header.length = 2;
+
+		if (type & tlckNEW) {
+			xtlck->lwm.offset = XTENTRYSTART;
+		} else {
+			if (mp->xflag & COMMIT_PAGE)
+				p = (xtpage_t *) mp->data;
+			else
+				p = &jfs_ip->i_xtroot;
+			xtlck->lwm.offset =
+			    le16_to_cpu(p->header.nextindex);
+		}
+		xtlck->lwm.length = 0;	/* ! */
+		xtlck->twm.offset = 0;
+		xtlck->hwm.offset = 0;
+
+		xtlck->index = 2;
+		break;
+
+	case tlckINODE:
+		linelock->l2linesize = L2INODESLOTSIZE;
+		break;
+
+	case tlckDATA:
+		linelock->l2linesize = L2DATASLOTSIZE;
+		break;
+
+	default:
+		jfs_err("UFO tlock:0x%p", tlck);
+	}
+
+	/*
+	 * update tlock vector
+	 */
+      grantLock:
+	tlck->type |= type;
+
+	TXN_UNLOCK();
+
+	return tlck;
+
+	/*
+	 * page is being locked by another transaction:
+	 */
+      waitLock:
+	/* Only locks on ipimap or ipaimap should reach here */
+	/* assert(jfs_ip->fileset == AGGREGATE_I); */
+	if (jfs_ip->fileset != AGGREGATE_I) {
+		jfs_err("txLock: trying to lock locked page!");
+		dump_mem("ip", ip, sizeof(struct inode));
+		dump_mem("mp", mp, sizeof(struct metapage));
+		dump_mem("Locker's tblk", tid_to_tblock(tid),
+			 sizeof(struct tblock));
+		dump_mem("Tlock", tlck, sizeof(struct tlock));
+		BUG();
+	}
+	INCREMENT(stattx.waitlock);	/* statistics */
+	release_metapage(mp);
+
+	jfs_info("txLock: in waitLock, tid = %d, xtid = %d, lid = %d",
+		 tid, xtid, lid);
+	TXN_SLEEP_DROP_LOCK(&tid_to_tblock(xtid)->waitor);
+	jfs_info("txLock: awakened     tid = %d, lid = %d", tid, lid);
+
+	return NULL;
+}
+
+
+/*
+ * NAME:        txRelease()
+ *
+ * FUNCTION:    Release buffers associated with transaction locks, but don't
+ *		mark homeok yet.  The allows other transactions to modify
+ *		buffers, but won't let them go to disk until commit record
+ *		actually gets written.
+ *
+ * PARAMETER:
+ *              tblk    -
+ *
+ * RETURN:      Errors from subroutines.
+ */
+static void txRelease(struct tblock * tblk)
+{
+	struct metapage *mp;
+	lid_t lid;
+	struct tlock *tlck;
+
+	TXN_LOCK();
+
+	for (lid = tblk->next; lid; lid = tlck->next) {
+		tlck = lid_to_tlock(lid);
+		if ((mp = tlck->mp) != NULL &&
+		    (tlck->type & tlckBTROOT) == 0) {
+			assert(mp->xflag & COMMIT_PAGE);
+			mp->lid = 0;
+		}
+	}
+
+	/*
+	 * wakeup transactions waiting on a page locked
+	 * by the current transaction
+	 */
+	TXN_WAKEUP(&tblk->waitor);
+
+	TXN_UNLOCK();
+}
+
+
+/*
+ * NAME:        txUnlock()
+ *
+ * FUNCTION:    Initiates pageout of pages modified by tid in journalled
+ *              objects and frees their lockwords.
+ */
+static void txUnlock(struct tblock * tblk)
+{
+	struct tlock *tlck;
+	struct linelock *linelock;
+	lid_t lid, next, llid, k;
+	struct metapage *mp;
+	struct jfs_log *log;
+	int difft, diffp;
+
+	jfs_info("txUnlock: tblk = 0x%p", tblk);
+	log = JFS_SBI(tblk->sb)->log;
+
+	/*
+	 * mark page under tlock homeok (its log has been written):
+	 */
+	for (lid = tblk->next; lid; lid = next) {
+		tlck = lid_to_tlock(lid);
+		next = tlck->next;
+
+		jfs_info("unlocking lid = %d, tlck = 0x%p", lid, tlck);
+
+		/* unbind page from tlock */
+		if ((mp = tlck->mp) != NULL &&
+		    (tlck->type & tlckBTROOT) == 0) {
+			assert(mp->xflag & COMMIT_PAGE);
+
+			/* hold buffer
+			 *
+			 * It's possible that someone else has the metapage.
+			 * The only things were changing are nohomeok, which
+			 * is handled atomically, and clsn which is protected
+			 * by the LOGSYNC_LOCK.
+			 */
+			hold_metapage(mp, 1);
+
+			assert(atomic_read(&mp->nohomeok) > 0);
+			atomic_dec(&mp->nohomeok);
+
+			/* inherit younger/larger clsn */
+			LOGSYNC_LOCK(log);
+			if (mp->clsn) {
+				logdiff(difft, tblk->clsn, log);
+				logdiff(diffp, mp->clsn, log);
+				if (difft > diffp)
+					mp->clsn = tblk->clsn;
+			} else
+				mp->clsn = tblk->clsn;
+			LOGSYNC_UNLOCK(log);
+
+			assert(!(tlck->flag & tlckFREEPAGE));
+
+			if (tlck->flag & tlckWRITEPAGE) {
+				write_metapage(mp);
+			} else {
+				/* release page which has been forced */
+				release_metapage(mp);
+			}
+		}
+
+		/* insert tlock, and linelock(s) of the tlock if any,
+		 * at head of freelist
+		 */
+		TXN_LOCK();
+
+		llid = ((struct linelock *) & tlck->lock)->next;
+		while (llid) {
+			linelock = (struct linelock *) lid_to_tlock(llid);
+			k = linelock->next;
+			txLockFree(llid);
+			llid = k;
+		}
+		txLockFree(lid);
+
+		TXN_UNLOCK();
+	}
+	tblk->next = tblk->last = 0;
+
+	/*
+	 * remove tblock from logsynclist
+	 * (allocation map pages inherited lsn of tblk and
+	 * has been inserted in logsync list at txUpdateMap())
+	 */
+	if (tblk->lsn) {
+		LOGSYNC_LOCK(log);
+		log->count--;
+		list_del(&tblk->synclist);
+		LOGSYNC_UNLOCK(log);
+	}
+}
+
+
+/*
+ *      txMaplock()
+ *
+ * function: allocate a transaction lock for freed page/entry;
+ *      for freed page, maplock is used as xtlock/dtlock type;
+ */
+struct tlock *txMaplock(tid_t tid, struct inode *ip, int type)
+{
+	struct jfs_inode_info *jfs_ip = JFS_IP(ip);
+	lid_t lid;
+	struct tblock *tblk;
+	struct tlock *tlck;
+	struct maplock *maplock;
+
+	TXN_LOCK();
+
+	/*
+	 * allocate a tlock
+	 */
+	lid = txLockAlloc();
+	tlck = lid_to_tlock(lid);
+
+	/*
+	 * initialize tlock
+	 */
+	tlck->tid = tid;
+
+	/* bind the tlock and the object */
+	tlck->flag = tlckINODELOCK;
+	tlck->ip = ip;
+	tlck->mp = NULL;
+
+	tlck->type = type;
+
+	/*
+	 * enqueue transaction lock to transaction/inode
+	 */
+	/* insert the tlock at tail of transaction tlock list */
+	if (tid) {
+		tblk = tid_to_tblock(tid);
+		if (tblk->next)
+			lid_to_tlock(tblk->last)->next = lid;
+		else
+			tblk->next = lid;
+		tlck->next = 0;
+		tblk->last = lid;
+	}
+	/* anonymous transaction:
+	 * insert the tlock at head of inode anonymous tlock list
+	 */
+	else {
+		tlck->next = jfs_ip->atlhead;
+		jfs_ip->atlhead = lid;
+		if (tlck->next == 0) {
+			/* This inode's first anonymous transaction */
+			jfs_ip->atltail = lid;
+			list_add_tail(&jfs_ip->anon_inode_list,
+				      &TxAnchor.anon_list);
+		}
+	}
+
+	TXN_UNLOCK();
+
+	/* initialize type dependent area for maplock */
+	maplock = (struct maplock *) & tlck->lock;
+	maplock->next = 0;
+	maplock->maxcnt = 0;
+	maplock->index = 0;
+
+	return tlck;
+}
+
+
+/*
+ *      txLinelock()
+ *
+ * function: allocate a transaction lock for log vector list
+ */
+struct linelock *txLinelock(struct linelock * tlock)
+{
+	lid_t lid;
+	struct tlock *tlck;
+	struct linelock *linelock;
+
+	TXN_LOCK();
+
+	/* allocate a TxLock structure */
+	lid = txLockAlloc();
+	tlck = lid_to_tlock(lid);
+
+	TXN_UNLOCK();
+
+	/* initialize linelock */
+	linelock = (struct linelock *) tlck;
+	linelock->next = 0;
+	linelock->flag = tlckLINELOCK;
+	linelock->maxcnt = TLOCKLONG;
+	linelock->index = 0;
+
+	/* append linelock after tlock */
+	linelock->next = tlock->next;
+	tlock->next = lid;
+
+	return linelock;
+}
+
+
+
+/*
+ *              transaction commit management
+ *              -----------------------------
+ */
+
+/*
+ * NAME:        txCommit()
+ *
+ * FUNCTION:    commit the changes to the objects specified in
+ *              clist.  For journalled segments only the
+ *              changes of the caller are committed, ie by tid.
+ *              for non-journalled segments the data are flushed to
+ *              disk and then the change to the disk inode and indirect
+ *              blocks committed (so blocks newly allocated to the
+ *              segment will be made a part of the segment atomically).
+ *
+ *              all of the segments specified in clist must be in
+ *              one file system. no more than 6 segments are needed
+ *              to handle all unix svcs.
+ *
+ *              if the i_nlink field (i.e. disk inode link count)
+ *              is zero, and the type of inode is a regular file or
+ *              directory, or symbolic link , the inode is truncated
+ *              to zero length. the truncation is committed but the
+ *              VM resources are unaffected until it is closed (see
+ *              iput and iclose).
+ *
+ * PARAMETER:
+ *
+ * RETURN:
+ *
+ * serialization:
+ *              on entry the inode lock on each segment is assumed
+ *              to be held.
+ *
+ * i/o error:
+ */
+int txCommit(tid_t tid,		/* transaction identifier */
+	     int nip,		/* number of inodes to commit */
+	     struct inode **iplist,	/* list of inode to commit */
+	     int flag)
+{
+	int rc = 0;
+	struct commit cd;
+	struct jfs_log *log;
+	struct tblock *tblk;
+	struct lrd *lrd;
+	int lsn;
+	struct inode *ip;
+	struct jfs_inode_info *jfs_ip;
+	int k, n;
+	ino_t top;
+	struct super_block *sb;
+
+	jfs_info("txCommit, tid = %d, flag = %d", tid, flag);
+	/* is read-only file system ? */
+	if (isReadOnly(iplist[0])) {
+		rc = -EROFS;
+		goto TheEnd;
+	}
+
+	sb = cd.sb = iplist[0]->i_sb;
+	cd.tid = tid;
+
+	if (tid == 0)
+		tid = txBegin(sb, 0);
+	tblk = tid_to_tblock(tid);
+
+	/*
+	 * initialize commit structure
+	 */
+	log = JFS_SBI(sb)->log;
+	cd.log = log;
+
+	/* initialize log record descriptor in commit */
+	lrd = &cd.lrd;
+	lrd->logtid = cpu_to_le32(tblk->logtid);
+	lrd->backchain = 0;
+
+	tblk->xflag |= flag;
+
+	if ((flag & (COMMIT_FORCE | COMMIT_SYNC)) == 0)
+		tblk->xflag |= COMMIT_LAZY;
+	/*
+	 *      prepare non-journaled objects for commit
+	 *
+	 * flush data pages of non-journaled file
+	 * to prevent the file getting non-initialized disk blocks
+	 * in case of crash.
+	 * (new blocks - )
+	 */
+	cd.iplist = iplist;
+	cd.nip = nip;
+
+	/*
+	 *      acquire transaction lock on (on-disk) inodes
+	 *
+	 * update on-disk inode from in-memory inode
+	 * acquiring transaction locks for AFTER records
+	 * on the on-disk inode of file object
+	 *
+	 * sort the inodes array by inode number in descending order
+	 * to prevent deadlock when acquiring transaction lock
+	 * of on-disk inodes on multiple on-disk inode pages by
+	 * multiple concurrent transactions
+	 */
+	for (k = 0; k < cd.nip; k++) {
+		top = (cd.iplist[k])->i_ino;
+		for (n = k + 1; n < cd.nip; n++) {
+			ip = cd.iplist[n];
+			if (ip->i_ino > top) {
+				top = ip->i_ino;
+				cd.iplist[n] = cd.iplist[k];
+				cd.iplist[k] = ip;
+			}
+		}
+
+		ip = cd.iplist[k];
+		jfs_ip = JFS_IP(ip);
+
+		if (test_and_clear_cflag(COMMIT_Syncdata, ip) &&
+		    ((tblk->flag && COMMIT_DELETE) == 0))
+			fsync_inode_data_buffers(ip);
+
+		/*
+		 * Mark inode as not dirty.  It will still be on the dirty
+		 * inode list, but we'll know not to commit it again unless
+		 * it gets marked dirty again
+		 */
+		clear_cflag(COMMIT_Dirty, ip);
+
+		/* inherit anonymous tlock(s) of inode */
+		if (jfs_ip->atlhead) {
+			lid_to_tlock(jfs_ip->atltail)->next = tblk->next;
+			tblk->next = jfs_ip->atlhead;
+			if (!tblk->last)
+				tblk->last = jfs_ip->atltail;
+			jfs_ip->atlhead = jfs_ip->atltail = 0;
+			TXN_LOCK();
+			list_del_init(&jfs_ip->anon_inode_list);
+			TXN_UNLOCK();
+		}
+
+		/*
+		 * acquire transaction lock on on-disk inode page
+		 * (become first tlock of the tblk's tlock list)
+		 */
+		if (((rc = diWrite(tid, ip))))
+			goto out;
+	}
+
+	/*
+	 *      write log records from transaction locks
+	 *
+	 * txUpdateMap() resets XAD_NEW in XAD.
+	 */
+	if ((rc = txLog(log, tblk, &cd)))
+		goto TheEnd;
+
+	/*
+	 * Ensure that inode isn't reused before
+	 * lazy commit thread finishes processing
+	 */
+	if (tblk->xflag & (COMMIT_CREATE | COMMIT_DELETE)) {
+		atomic_inc(&tblk->ip->i_count);
+		/*
+		 * Avoid a rare deadlock
+		 *
+		 * If the inode is locked, we may be blocked in
+		 * jfs_commit_inode.  If so, we don't want the
+		 * lazy_commit thread doing the last iput() on the inode
+		 * since that may block on the locked inode.  Instead,
+		 * commit the transaction synchronously, so the last iput
+		 * will be done by the calling thread (or later)
+		 */
+		if (tblk->ip->i_state & I_LOCK)
+			tblk->xflag &= ~COMMIT_LAZY;
+	}
+
+	ASSERT((!(tblk->xflag & COMMIT_DELETE)) ||
+	       ((tblk->ip->i_nlink == 0) &&
+		!test_cflag(COMMIT_Nolink, tblk->ip)));
+
+	/*
+	 *      write COMMIT log record
+	 */
+	lrd->type = cpu_to_le16(LOG_COMMIT);
+	lrd->length = 0;
+	lsn = lmLog(log, tblk, lrd, NULL);
+
+	lmGroupCommit(log, tblk);
+
+	/*
+	 *      - transaction is now committed -
+	 */
+
+	/*
+	 * force pages in careful update
+	 * (imap addressing structure update)
+	 */
+	if (flag & COMMIT_FORCE)
+		txForce(tblk);
+
+	/*
+	 *      update allocation map.
+	 *
+	 * update inode allocation map and inode:
+	 * free pager lock on memory object of inode if any.
+	 * update  block allocation map.
+	 *
+	 * txUpdateMap() resets XAD_NEW in XAD.
+	 */
+	if (tblk->xflag & COMMIT_FORCE)
+		txUpdateMap(tblk);
+
+	/*
+	 *      free transaction locks and pageout/free pages
+	 */
+	txRelease(tblk);
+
+	if ((tblk->flag & tblkGC_LAZY) == 0)
+		txUnlock(tblk);
+
+
+	/*
+	 *      reset in-memory object state
+	 */
+	for (k = 0; k < cd.nip; k++) {
+		ip = cd.iplist[k];
+		jfs_ip = JFS_IP(ip);
+
+		/*
+		 * reset in-memory inode state
+		 */
+		jfs_ip->bxflag = 0;
+		jfs_ip->blid = 0;
+	}
+
+      out:
+	if (rc != 0)
+		txAbort(tid, 1);
+
+      TheEnd:
+	jfs_info("txCommit: tid = %d, returning %d", tid, rc);
+	return rc;
+}
+
+
+/*
+ * NAME:        txLog()
+ *
+ * FUNCTION:    Writes AFTER log records for all lines modified
+ *              by tid for segments specified by inodes in comdata.
+ *              Code assumes only WRITELOCKS are recorded in lockwords.
+ *
+ * PARAMETERS:
+ *
+ * RETURN :
+ */
+static int txLog(struct jfs_log * log, struct tblock * tblk, struct commit * cd)
+{
+	int rc = 0;
+	struct inode *ip;
+	lid_t lid;
+	struct tlock *tlck;
+	struct lrd *lrd = &cd->lrd;
+
+	/*
+	 * write log record(s) for each tlock of transaction,
+	 */
+	for (lid = tblk->next; lid; lid = tlck->next) {
+		tlck = lid_to_tlock(lid);
+
+		tlck->flag |= tlckLOG;
+
+		/* initialize lrd common */
+		ip = tlck->ip;
+		lrd->aggregate = cpu_to_le32(kdev_t_to_nr(ip->i_dev));
+		lrd->log.redopage.fileset = cpu_to_le32(JFS_IP(ip)->fileset);
+		lrd->log.redopage.inode = cpu_to_le32(ip->i_ino);
+
+		/* write log record of page from the tlock */
+		switch (tlck->type & tlckTYPE) {
+		case tlckXTREE:
+			xtLog(log, tblk, lrd, tlck);
+			break;
+
+		case tlckDTREE:
+			dtLog(log, tblk, lrd, tlck);
+			break;
+
+		case tlckINODE:
+			diLog(log, tblk, lrd, tlck, cd);
+			break;
+
+		case tlckMAP:
+			mapLog(log, tblk, lrd, tlck);
+			break;
+
+		case tlckDATA:
+			dataLog(log, tblk, lrd, tlck);
+			break;
+
+		default:
+			jfs_err("UFO tlock:0x%p", tlck);
+		}
+	}
+
+	return rc;
+}
+
+
+/*
+ *      diLog()
+ *
+ * function:    log inode tlock and format maplock to update bmap;
+ */
+static int diLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
+	  struct tlock * tlck, struct commit * cd)
+{
+	int rc = 0;
+	struct metapage *mp;
+	pxd_t *pxd;
+	struct pxd_lock *pxdlock;
+
+	mp = tlck->mp;
+
+	/* initialize as REDOPAGE record format */
+	lrd->log.redopage.type = cpu_to_le16(LOG_INODE);
+	lrd->log.redopage.l2linesize = cpu_to_le16(L2INODESLOTSIZE);
+
+	pxd = &lrd->log.redopage.pxd;
+
+	/*
+	 *      inode after image
+	 */
+	if (tlck->type & tlckENTRY) {
+		/* log after-image for logredo(): */
+		lrd->type = cpu_to_le16(LOG_REDOPAGE);
+//              *pxd = mp->cm_pxd;
+		PXDaddress(pxd, mp->index);
+		PXDlength(pxd,
+			  mp->logical_size >> tblk->sb->s_blocksize_bits);
+		lrd->backchain = cpu_to_le32(lmLog(log, tblk, lrd, tlck));
+
+		/* mark page as homeward bound */
+		tlck->flag |= tlckWRITEPAGE;
+	} else if (tlck->type & tlckFREE) {
+		/*
+		 *      free inode extent
+		 *
+		 * (pages of the freed inode extent have been invalidated and
+		 * a maplock for free of the extent has been formatted at
+		 * txLock() time);
+		 *
+		 * the tlock had been acquired on the inode allocation map page
+		 * (iag) that specifies the freed extent, even though the map
+		 * page is not itself logged, to prevent pageout of the map
+		 * page before the log;
+		 */
+
+		/* log LOG_NOREDOINOEXT of the freed inode extent for
+		 * logredo() to start NoRedoPage filters, and to update
+		 * imap and bmap for free of the extent;
+		 */
+		lrd->type = cpu_to_le16(LOG_NOREDOINOEXT);
+		/*
+		 * For the LOG_NOREDOINOEXT record, we need
+		 * to pass the IAG number and inode extent
+		 * index (within that IAG) from which the
+		 * the extent being released.  These have been
+		 * passed to us in the iplist[1] and iplist[2].
+		 */
+		lrd->log.noredoinoext.iagnum =
+		    cpu_to_le32((u32) (size_t) cd->iplist[1]);
+		lrd->log.noredoinoext.inoext_idx =
+		    cpu_to_le32((u32) (size_t) cd->iplist[2]);
+
+		pxdlock = (struct pxd_lock *) & tlck->lock;
+		*pxd = pxdlock->pxd;
+		lrd->backchain = cpu_to_le32(lmLog(log, tblk, lrd, NULL));
+
+		/* update bmap */
+		tlck->flag |= tlckUPDATEMAP;
+
+		/* mark page as homeward bound */
+		tlck->flag |= tlckWRITEPAGE;
+	} else
+		jfs_err("diLog: UFO type tlck:0x%p", tlck);
+#ifdef  _JFS_WIP
+	/*
+	 *      alloc/free external EA extent
+	 *
+	 * a maplock for txUpdateMap() to update bPWMAP for alloc/free
+	 * of the extent has been formatted at txLock() time;
+	 */
+	else {
+		assert(tlck->type & tlckEA);
+
+		/* log LOG_UPDATEMAP for logredo() to update bmap for
+		 * alloc of new (and free of old) external EA extent;
+		 */
+		lrd->type = cpu_to_le16(LOG_UPDATEMAP);
+		pxdlock = (struct pxd_lock *) & tlck->lock;
+		nlock = pxdlock->index;
+		for (i = 0; i < nlock; i++, pxdlock++) {
+			if (pxdlock->flag & mlckALLOCPXD)
+				lrd->log.updatemap.type =
+				    cpu_to_le16(LOG_ALLOCPXD);
+			else
+				lrd->log.updatemap.type =
+				    cpu_to_le16(LOG_FREEPXD);
+			lrd->log.updatemap.nxd = cpu_to_le16(1);
+			lrd->log.updatemap.pxd = pxdlock->pxd;
+			lrd->backchain =
+			    cpu_to_le32(lmLog(log, tblk, lrd, NULL));
+		}
+
+		/* update bmap */
+		tlck->flag |= tlckUPDATEMAP;
+	}
+#endif				/* _JFS_WIP */
+
+	return rc;
+}
+
+
+/*
+ *      dataLog()
+ *
+ * function:    log data tlock
+ */
+static int dataLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
+	    struct tlock * tlck)
+{
+	struct metapage *mp;
+	pxd_t *pxd;
+
+	mp = tlck->mp;
+
+	/* initialize as REDOPAGE record format */
+	lrd->log.redopage.type = cpu_to_le16(LOG_DATA);
+	lrd->log.redopage.l2linesize = cpu_to_le16(L2DATASLOTSIZE);
+
+	pxd = &lrd->log.redopage.pxd;
+
+	/* log after-image for logredo(): */
+	lrd->type = cpu_to_le16(LOG_REDOPAGE);
+
+	if (JFS_IP(tlck->ip)->next_index < MAX_INLINE_DIRTABLE_ENTRY) {
+		/*
+		 * The table has been truncated, we've must have deleted
+		 * the last entry, so don't bother logging this
+		 */
+		mp->lid = 0;
+		hold_metapage(mp, 0);
+		atomic_dec(&mp->nohomeok);
+		discard_metapage(mp);
+		tlck->mp = 0;
+		return 0;
+	}
+
+	PXDaddress(pxd, mp->index);
+	PXDlength(pxd, mp->logical_size >> tblk->sb->s_blocksize_bits);
+
+	lrd->backchain = cpu_to_le32(lmLog(log, tblk, lrd, tlck));
+
+	/* mark page as homeward bound */
+	tlck->flag |= tlckWRITEPAGE;
+
+	return 0;
+}
+
+
+/*
+ *      dtLog()
+ *
+ * function:    log dtree tlock and format maplock to update bmap;
+ */
+static void dtLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
+	   struct tlock * tlck)
+{
+	struct metapage *mp;
+	struct pxd_lock *pxdlock;
+	pxd_t *pxd;
+
+	mp = tlck->mp;
+
+	/* initialize as REDOPAGE/NOREDOPAGE record format */
+	lrd->log.redopage.type = cpu_to_le16(LOG_DTREE);
+	lrd->log.redopage.l2linesize = cpu_to_le16(L2DTSLOTSIZE);
+
+	pxd = &lrd->log.redopage.pxd;
+
+	if (tlck->type & tlckBTROOT)
+		lrd->log.redopage.type |= cpu_to_le16(LOG_BTROOT);
+
+	/*
+	 *      page extension via relocation: entry insertion;
+	 *      page extension in-place: entry insertion;
+	 *      new right page from page split, reinitialized in-line
+	 *      root from root page split: entry insertion;
+	 */
+	if (tlck->type & (tlckNEW | tlckEXTEND)) {
+		/* log after-image of the new page for logredo():
+		 * mark log (LOG_NEW) for logredo() to initialize
+		 * freelist and update bmap for alloc of the new page;
+		 */
+		lrd->type = cpu_to_le16(LOG_REDOPAGE);
+		if (tlck->type & tlckEXTEND)
+			lrd->log.redopage.type |= cpu_to_le16(LOG_EXTEND);
+		else
+			lrd->log.redopage.type |= cpu_to_le16(LOG_NEW);
+//              *pxd = mp->cm_pxd;
+		PXDaddress(pxd, mp->index);
+		PXDlength(pxd,
+			  mp->logical_size >> tblk->sb->s_blocksize_bits);
+		lrd->backchain = cpu_to_le32(lmLog(log, tblk, lrd, tlck));
+
+		/* format a maplock for txUpdateMap() to update bPMAP for
+		 * alloc of the new page;
+		 */
+		if (tlck->type & tlckBTROOT)
+			return;
+		tlck->flag |= tlckUPDATEMAP;
+		pxdlock = (struct pxd_lock *) & tlck->lock;
+		pxdlock->flag = mlckALLOCPXD;
+		pxdlock->pxd = *pxd;
+
+		pxdlock->index = 1;
+
+		/* mark page as homeward bound */
+		tlck->flag |= tlckWRITEPAGE;
+		return;
+	}
+
+	/*
+	 *      entry insertion/deletion,
+	 *      sibling page link update (old right page before split);
+	 */
+	if (tlck->type & (tlckENTRY | tlckRELINK)) {
+		/* log after-image for logredo(): */
+		lrd->type = cpu_to_le16(LOG_REDOPAGE);
+		PXDaddress(pxd, mp->index);
+		PXDlength(pxd,
+			  mp->logical_size >> tblk->sb->s_blocksize_bits);
+		lrd->backchain = cpu_to_le32(lmLog(log, tblk, lrd, tlck));
+
+		/* mark page as homeward bound */
+		tlck->flag |= tlckWRITEPAGE;
+		return;
+	}
+
+	/*
+	 *      page deletion: page has been invalidated
+	 *      page relocation: source extent
+	 *
+	 *      a maplock for free of the page has been formatted
+	 *      at txLock() time);
+	 */
+	if (tlck->type & (tlckFREE | tlckRELOCATE)) {
+		/* log LOG_NOREDOPAGE of the deleted page for logredo()
+		 * to start NoRedoPage filter and to update bmap for free
+		 * of the deletd page
+		 */
+		lrd->type = cpu_to_le16(LOG_NOREDOPAGE);
+		pxdlock = (struct pxd_lock *) & tlck->lock;
+		*pxd = pxdlock->pxd;
+		lrd->backchain = cpu_to_le32(lmLog(log, tblk, lrd, NULL));
+
+		/* a maplock for txUpdateMap() for free of the page
+		 * has been formatted at txLock() time;
+		 */
+		tlck->flag |= tlckUPDATEMAP;
+	}
+	return;
+}
+
+
+/*
+ *      xtLog()
+ *
+ * function:    log xtree tlock and format maplock to update bmap;
+ */
+static void xtLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
+	   struct tlock * tlck)
+{
+	struct inode *ip;
+	struct metapage *mp;
+	xtpage_t *p;
+	struct xtlock *xtlck;
+	struct maplock *maplock;
+	struct xdlistlock *xadlock;
+	struct pxd_lock *pxdlock;
+	pxd_t *pxd;
+	int next, lwm, hwm;
+
+	ip = tlck->ip;
+	mp = tlck->mp;
+
+	/* initialize as REDOPAGE/NOREDOPAGE record format */
+	lrd->log.redopage.type = cpu_to_le16(LOG_XTREE);
+	lrd->log.redopage.l2linesize = cpu_to_le16(L2XTSLOTSIZE);
+
+	pxd = &lrd->log.redopage.pxd;
+
+	if (tlck->type & tlckBTROOT) {
+		lrd->log.redopage.type |= cpu_to_le16(LOG_BTROOT);
+		p = &JFS_IP(ip)->i_xtroot;
+		if (S_ISDIR(ip->i_mode))
+			lrd->log.redopage.type |=
+			    cpu_to_le16(LOG_DIR_XTREE);
+	} else
+		p = (xtpage_t *) mp->data;
+	next = le16_to_cpu(p->header.nextindex);
+
+	xtlck = (struct xtlock *) & tlck->lock;
+
+	maplock = (struct maplock *) & tlck->lock;
+	xadlock = (struct xdlistlock *) maplock;
+
+	/*
+	 *      entry insertion/extension;
+	 *      sibling page link update (old right page before split);
+	 */
+	if (tlck->type & (tlckNEW | tlckGROW | tlckRELINK)) {
+		/* log after-image for logredo():
+		 * logredo() will update bmap for alloc of new/extended
+		 * extents (XAD_NEW|XAD_EXTEND) of XAD[lwm:next) from
+		 * after-image of XADlist;
+		 * logredo() resets (XAD_NEW|XAD_EXTEND) flag when
+		 * applying the after-image to the meta-data page.
+		 */
+		lrd->type = cpu_to_le16(LOG_REDOPAGE);
+//              *pxd = mp->cm_pxd;
+		PXDaddress(pxd, mp->index);
+		PXDlength(pxd,
+			  mp->logical_size >> tblk->sb->s_blocksize_bits);
+		lrd->backchain = cpu_to_le32(lmLog(log, tblk, lrd, tlck));
+
+		/* format a maplock for txUpdateMap() to update bPMAP
+		 * for alloc of new/extended extents of XAD[lwm:next)
+		 * from the page itself;
+		 * txUpdateMap() resets (XAD_NEW|XAD_EXTEND) flag.
+		 */
+		lwm = xtlck->lwm.offset;
+		if (lwm == 0)
+			lwm = XTPAGEMAXSLOT;
+
+		if (lwm == next)
+			goto out;
+		if (lwm > next) {
+			jfs_err("xtLog: lwm > next\n");
+			goto out;
+		}
+		tlck->flag |= tlckUPDATEMAP;
+		xadlock->flag = mlckALLOCXADLIST;
+		xadlock->count = next - lwm;
+		if ((xadlock->count <= 2) && (tblk->xflag & COMMIT_LAZY)) {
+			int i;
+			/*
+			 * Lazy commit may allow xtree to be modified before
+			 * txUpdateMap runs.  Copy xad into linelock to
+			 * preserve correct data.
+			 */
+			xadlock->xdlist = &xtlck->pxdlock;
+			memcpy(xadlock->xdlist, &p->xad[lwm],
+			       sizeof(xad_t) * xadlock->count);
+
+			for (i = 0; i < xadlock->count; i++)
+				p->xad[lwm + i].flag &=
+				    ~(XAD_NEW | XAD_EXTENDED);
+		} else {
+			/*
+			 * xdlist will point to into inode's xtree, ensure
+			 * that transaction is not committed lazily.
+			 */
+			xadlock->xdlist = &p->xad[lwm];
+			tblk->xflag &= ~COMMIT_LAZY;
+		}
+		jfs_info("xtLog: alloc ip:0x%p mp:0x%p tlck:0x%p lwm:%d "
+			 "count:%d", tlck->ip, mp, tlck, lwm, xadlock->count);
+
+		maplock->index = 1;
+
+	      out:
+		/* mark page as homeward bound */
+		tlck->flag |= tlckWRITEPAGE;
+
+		return;
+	}
+
+	/*
+	 *      page deletion: file deletion/truncation (ref. xtTruncate())
+	 *
+	 * (page will be invalidated after log is written and bmap
+	 * is updated from the page);
+	 */
+	if (tlck->type & tlckFREE) {
+		/* LOG_NOREDOPAGE log for NoRedoPage filter:
+		 * if page free from file delete, NoRedoFile filter from
+		 * inode image of zero link count will subsume NoRedoPage
+		 * filters for each page;
+		 * if page free from file truncattion, write NoRedoPage
+		 * filter;
+		 *
+		 * upadte of block allocation map for the page itself:
+		 * if page free from deletion and truncation, LOG_UPDATEMAP
+		 * log for the page itself is generated from processing
+		 * its parent page xad entries;
+		 */
+		/* if page free from file truncation, log LOG_NOREDOPAGE
+		 * of the deleted page for logredo() to start NoRedoPage
+		 * filter for the page;
+		 */
+		if (tblk->xflag & COMMIT_TRUNCATE) {
+			/* write NOREDOPAGE for the page */
+			lrd->type = cpu_to_le16(LOG_NOREDOPAGE);
+			PXDaddress(pxd, mp->index);
+			PXDlength(pxd,
+				  mp->logical_size >> tblk->sb->
+				  s_blocksize_bits);
+			lrd->backchain =
+			    cpu_to_le32(lmLog(log, tblk, lrd, NULL));
+
+			if (tlck->type & tlckBTROOT) {
+				/* Empty xtree must be logged */
+				lrd->type = cpu_to_le16(LOG_REDOPAGE);
+				lrd->backchain =
+				    cpu_to_le32(lmLog(log, tblk, lrd, tlck));
+			}
+		}
+
+		/* init LOG_UPDATEMAP of the freed extents
+		 * XAD[XTENTRYSTART:hwm) from the deleted page itself
+		 * for logredo() to update bmap;
+		 */
+		lrd->type = cpu_to_le16(LOG_UPDATEMAP);
+		lrd->log.updatemap.type = cpu_to_le16(LOG_FREEXADLIST);
+		xtlck = (struct xtlock *) & tlck->lock;
+		hwm = xtlck->hwm.offset;
+		lrd->log.updatemap.nxd =
+		    cpu_to_le16(hwm - XTENTRYSTART + 1);
+		/* reformat linelock for lmLog() */
+		xtlck->header.offset = XTENTRYSTART;
+		xtlck->header.length = hwm - XTENTRYSTART + 1;
+		xtlck->index = 1;
+		lrd->backchain = cpu_to_le32(lmLog(log, tblk, lrd, tlck));
+
+		/* format a maplock for txUpdateMap() to update bmap
+		 * to free extents of XAD[XTENTRYSTART:hwm) from the
+		 * deleted page itself;
+		 */
+		tlck->flag |= tlckUPDATEMAP;
+		xadlock->flag = mlckFREEXADLIST;
+		xadlock->count = hwm - XTENTRYSTART + 1;
+		if ((xadlock->count <= 2) && (tblk->xflag & COMMIT_LAZY)) {
+			/*
+			 * Lazy commit may allow xtree to be modified before
+			 * txUpdateMap runs.  Copy xad into linelock to
+			 * preserve correct data.
+			 */
+			xadlock->xdlist = &xtlck->pxdlock;
+			memcpy(xadlock->xdlist, &p->xad[XTENTRYSTART],
+			       sizeof(xad_t) * xadlock->count);
+		} else {
+			/*
+			 * xdlist will point to into inode's xtree, ensure
+			 * that transaction is not committed lazily.
+			 */
+			xadlock->xdlist = &p->xad[XTENTRYSTART];
+			tblk->xflag &= ~COMMIT_LAZY;
+		}
+		jfs_info("xtLog: free ip:0x%p mp:0x%p count:%d lwm:2",
+			 tlck->ip, mp, xadlock->count);
+
+		maplock->index = 1;
+
+		/* mark page as invalid */
+		if (((tblk->xflag & COMMIT_PWMAP) || S_ISDIR(ip->i_mode))
+		    && !(tlck->type & tlckBTROOT))
+			tlck->flag |= tlckFREEPAGE;
+		/*
+		   else (tblk->xflag & COMMIT_PMAP)
+		   ? release the page;
+		 */
+		return;
+	}
+
+	/*
+	 *      page/entry truncation: file truncation (ref. xtTruncate())
+	 *
+	 *     |----------+------+------+---------------|
+	 *                |      |      |
+	 *                |      |     hwm - hwm before truncation
+	 *                |     next - truncation point
+	 *               lwm - lwm before truncation
+	 * header ?
+	 */
+	if (tlck->type & tlckTRUNCATE) {
+		pxd_t tpxd;	/* truncated extent of xad */
+		int twm;
+
+		/*
+		 * For truncation the entire linelock may be used, so it would
+		 * be difficult to store xad list in linelock itself.
+		 * Therefore, we'll just force transaction to be committed
+		 * synchronously, so that xtree pages won't be changed before
+		 * txUpdateMap runs.
+		 */
+		tblk->xflag &= ~COMMIT_LAZY;
+		lwm = xtlck->lwm.offset;
+		if (lwm == 0)
+			lwm = XTPAGEMAXSLOT;
+		hwm = xtlck->hwm.offset;
+		twm = xtlck->twm.offset;
+
+		/*
+		 *      write log records
+		 */
+		/* log after-image for logredo():
+		 *
+		 * logredo() will update bmap for alloc of new/extended
+		 * extents (XAD_NEW|XAD_EXTEND) of XAD[lwm:next) from
+		 * after-image of XADlist;
+		 * logredo() resets (XAD_NEW|XAD_EXTEND) flag when
+		 * applying the after-image to the meta-data page.
+		 */
+		lrd->type = cpu_to_le16(LOG_REDOPAGE);
+		PXDaddress(pxd, mp->index);
+		PXDlength(pxd, mp->logical_size >> tblk->sb->s_blocksize_bits);
+		lrd->backchain = cpu_to_le32(lmLog(log, tblk, lrd, tlck));
+
+		/*
+		 * truncate entry XAD[twm == next - 1]:
+		 */
+		if (twm == next - 1) {
+			/* init LOG_UPDATEMAP for logredo() to update bmap for
+			 * free of truncated delta extent of the truncated
+			 * entry XAD[next - 1]:
+			 * (xtlck->pxdlock = truncated delta extent);
+			 */
+			pxdlock = (struct pxd_lock *) & xtlck->pxdlock;
+			/* assert(pxdlock->type & tlckTRUNCATE); */
+			lrd->type = cpu_to_le16(LOG_UPDATEMAP);
+			lrd->log.updatemap.type = cpu_to_le16(LOG_FREEPXD);
+			lrd->log.updatemap.nxd = cpu_to_le16(1);
+			lrd->log.updatemap.pxd = pxdlock->pxd;
+			tpxd = pxdlock->pxd;	/* save to format maplock */
+			lrd->backchain =
+			    cpu_to_le32(lmLog(log, tblk, lrd, NULL));
+		}
+
+		/*
+		 * free entries XAD[next:hwm]:
+		 */
+		if (hwm >= next) {
+			/* init LOG_UPDATEMAP of the freed extents
+			 * XAD[next:hwm] from the deleted page itself
+			 * for logredo() to update bmap;
+			 */
+			lrd->type = cpu_to_le16(LOG_UPDATEMAP);
+			lrd->log.updatemap.type =
+			    cpu_to_le16(LOG_FREEXADLIST);
+			xtlck = (struct xtlock *) & tlck->lock;
+			hwm = xtlck->hwm.offset;
+			lrd->log.updatemap.nxd =
+			    cpu_to_le16(hwm - next + 1);
+			/* reformat linelock for lmLog() */
+			xtlck->header.offset = next;
+			xtlck->header.length = hwm - next + 1;
+			xtlck->index = 1;
+			lrd->backchain =
+			    cpu_to_le32(lmLog(log, tblk, lrd, tlck));
+		}
+
+		/*
+		 *      format maplock(s) for txUpdateMap() to update bmap
+		 */
+		maplock->index = 0;
+
+		/*
+		 * allocate entries XAD[lwm:next):
+		 */
+		if (lwm < next) {
+			/* format a maplock for txUpdateMap() to update bPMAP
+			 * for alloc of new/extended extents of XAD[lwm:next)
+			 * from the page itself;
+			 * txUpdateMap() resets (XAD_NEW|XAD_EXTEND) flag.
+			 */
+			tlck->flag |= tlckUPDATEMAP;
+			xadlock->flag = mlckALLOCXADLIST;
+			xadlock->count = next - lwm;
+			xadlock->xdlist = &p->xad[lwm];
+
+			jfs_info("xtLog: alloc ip:0x%p mp:0x%p count:%d "
+				 "lwm:%d next:%d",
+				 tlck->ip, mp, xadlock->count, lwm, next);
+			maplock->index++;
+			xadlock++;
+		}
+
+		/*
+		 * truncate entry XAD[twm == next - 1]:
+		 */
+		if (twm == next - 1) {
+			struct pxd_lock *pxdlock;
+
+			/* format a maplock for txUpdateMap() to update bmap
+			 * to free truncated delta extent of the truncated
+			 * entry XAD[next - 1];
+			 * (xtlck->pxdlock = truncated delta extent);
+			 */
+			tlck->flag |= tlckUPDATEMAP;
+			pxdlock = (struct pxd_lock *) xadlock;
+			pxdlock->flag = mlckFREEPXD;
+			pxdlock->count = 1;
+			pxdlock->pxd = tpxd;
+
+			jfs_info("xtLog: truncate ip:0x%p mp:0x%p count:%d "
+				 "hwm:%d", ip, mp, pxdlock->count, hwm);
+			maplock->index++;
+			xadlock++;
+		}
+
+		/*
+		 * free entries XAD[next:hwm]:
+		 */
+		if (hwm >= next) {
+			/* format a maplock for txUpdateMap() to update bmap
+			 * to free extents of XAD[next:hwm] from thedeleted
+			 * page itself;
+			 */
+			tlck->flag |= tlckUPDATEMAP;
+			xadlock->flag = mlckFREEXADLIST;
+			xadlock->count = hwm - next + 1;
+			xadlock->xdlist = &p->xad[next];
+
+			jfs_info("xtLog: free ip:0x%p mp:0x%p count:%d "
+				 "next:%d hwm:%d",
+				 tlck->ip, mp, xadlock->count, next, hwm);
+			maplock->index++;
+		}
+
+		/* mark page as homeward bound */
+		tlck->flag |= tlckWRITEPAGE;
+	}
+	return;
+}
+
+
+/*
+ *      mapLog()
+ *
+ * function:    log from maplock of freed data extents;
+ */
+void mapLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
+	    struct tlock * tlck)
+{
+	struct pxd_lock *pxdlock;
+	int i, nlock;
+	pxd_t *pxd;
+
+	/*
+	 *      page relocation: free the source page extent
+	 *
+	 * a maplock for txUpdateMap() for free of the page
+	 * has been formatted at txLock() time saving the src
+	 * relocated page address;
+	 */
+	if (tlck->type & tlckRELOCATE) {
+		/* log LOG_NOREDOPAGE of the old relocated page
+		 * for logredo() to start NoRedoPage filter;
+		 */
+		lrd->type = cpu_to_le16(LOG_NOREDOPAGE);
+		pxdlock = (struct pxd_lock *) & tlck->lock;
+		pxd = &lrd->log.redopage.pxd;
+		*pxd = pxdlock->pxd;
+		lrd->backchain = cpu_to_le32(lmLog(log, tblk, lrd, NULL));
+
+		/* (N.B. currently, logredo() does NOT update bmap
+		 * for free of the page itself for (LOG_XTREE|LOG_NOREDOPAGE);
+		 * if page free from relocation, LOG_UPDATEMAP log is
+		 * specifically generated now for logredo()
+		 * to update bmap for free of src relocated page;
+		 * (new flag LOG_RELOCATE may be introduced which will
+		 * inform logredo() to start NORedoPage filter and also
+		 * update block allocation map at the same time, thus
+		 * avoiding an extra log write);
+		 */
+		lrd->type = cpu_to_le16(LOG_UPDATEMAP);
+		lrd->log.updatemap.type = cpu_to_le16(LOG_FREEPXD);
+		lrd->log.updatemap.nxd = cpu_to_le16(1);
+		lrd->log.updatemap.pxd = pxdlock->pxd;
+		lrd->backchain = cpu_to_le32(lmLog(log, tblk, lrd, NULL));
+
+		/* a maplock for txUpdateMap() for free of the page
+		 * has been formatted at txLock() time;
+		 */
+		tlck->flag |= tlckUPDATEMAP;
+		return;
+	}
+	/*
+
+	 * Otherwise it's not a relocate request
+	 *
+	 */
+	else {
+		/* log LOG_UPDATEMAP for logredo() to update bmap for
+		 * free of truncated/relocated delta extent of the data;
+		 * e.g.: external EA extent, relocated/truncated extent
+		 * from xtTailgate();
+		 */
+		lrd->type = cpu_to_le16(LOG_UPDATEMAP);
+		pxdlock = (struct pxd_lock *) & tlck->lock;
+		nlock = pxdlock->index;
+		for (i = 0; i < nlock; i++, pxdlock++) {
+			if (pxdlock->flag & mlckALLOCPXD)
+				lrd->log.updatemap.type =
+				    cpu_to_le16(LOG_ALLOCPXD);
+			else
+				lrd->log.updatemap.type =
+				    cpu_to_le16(LOG_FREEPXD);
+			lrd->log.updatemap.nxd = cpu_to_le16(1);
+			lrd->log.updatemap.pxd = pxdlock->pxd;
+			lrd->backchain =
+			    cpu_to_le32(lmLog(log, tblk, lrd, NULL));
+			jfs_info("mapLog: xaddr:0x%lx xlen:0x%x",
+				 (ulong) addressPXD(&pxdlock->pxd),
+				 lengthPXD(&pxdlock->pxd));
+		}
+
+		/* update bmap */
+		tlck->flag |= tlckUPDATEMAP;
+	}
+}
+
+
+/*
+ *      txEA()
+ *
+ * function:    acquire maplock for EA/ACL extents or
+ *              set COMMIT_INLINE flag;
+ */
+void txEA(tid_t tid, struct inode *ip, dxd_t * oldea, dxd_t * newea)
+{
+	struct tlock *tlck = NULL;
+	struct pxd_lock *maplock = NULL, *pxdlock = NULL;
+
+	/*
+	 * format maplock for alloc of new EA extent
+	 */
+	if (newea) {
+		/* Since the newea could be a completely zeroed entry we need to
+		 * check for the two flags which indicate we should actually
+		 * commit new EA data
+		 */
+		if (newea->flag & DXD_EXTENT) {
+			tlck = txMaplock(tid, ip, tlckMAP);
+			maplock = (struct pxd_lock *) & tlck->lock;
+			pxdlock = (struct pxd_lock *) maplock;
+			pxdlock->flag = mlckALLOCPXD;
+			PXDaddress(&pxdlock->pxd, addressDXD(newea));
+			PXDlength(&pxdlock->pxd, lengthDXD(newea));
+			pxdlock++;
+			maplock->index = 1;
+		} else if (newea->flag & DXD_INLINE) {
+			tlck = NULL;
+
+			set_cflag(COMMIT_Inlineea, ip);
+		}
+	}
+
+	/*
+	 * format maplock for free of old EA extent
+	 */
+	if (!test_cflag(COMMIT_Nolink, ip) && oldea->flag & DXD_EXTENT) {
+		if (tlck == NULL) {
+			tlck = txMaplock(tid, ip, tlckMAP);
+			maplock = (struct pxd_lock *) & tlck->lock;
+			pxdlock = (struct pxd_lock *) maplock;
+			maplock->index = 0;
+		}
+		pxdlock->flag = mlckFREEPXD;
+		PXDaddress(&pxdlock->pxd, addressDXD(oldea));
+		PXDlength(&pxdlock->pxd, lengthDXD(oldea));
+		maplock->index++;
+	}
+}
+
+
+/*
+ *      txForce()
+ *
+ * function: synchronously write pages locked by transaction
+ *              after txLog() but before txUpdateMap();
+ */
+void txForce(struct tblock * tblk)
+{
+	struct tlock *tlck;
+	lid_t lid, next;
+	struct metapage *mp;
+
+	/*
+	 * reverse the order of transaction tlocks in
+	 * careful update order of address index pages
+	 * (right to left, bottom up)
+	 */
+	tlck = lid_to_tlock(tblk->next);
+	lid = tlck->next;
+	tlck->next = 0;
+	while (lid) {
+		tlck = lid_to_tlock(lid);
+		next = tlck->next;
+		tlck->next = tblk->next;
+		tblk->next = lid;
+		lid = next;
+	}
+
+	/*
+	 * synchronously write the page, and
+	 * hold the page for txUpdateMap();
+	 */
+	for (lid = tblk->next; lid; lid = next) {
+		tlck = lid_to_tlock(lid);
+		next = tlck->next;
+
+		if ((mp = tlck->mp) != NULL &&
+		    (tlck->type & tlckBTROOT) == 0) {
+			assert(mp->xflag & COMMIT_PAGE);
+
+			if (tlck->flag & tlckWRITEPAGE) {
+				tlck->flag &= ~tlckWRITEPAGE;
+
+				/* do not release page to freelist */
+
+				/*
+				 * The "right" thing to do here is to
+				 * synchronously write the metadata.
+				 * With the current implementation this
+				 * is hard since write_metapage requires
+				 * us to kunmap & remap the page.  If we
+				 * have tlocks pointing into the metadata
+				 * pages, we don't want to do this.  I think
+				 * we can get by with synchronously writing
+				 * the pages when they are released.
+				 */
+				assert(atomic_read(&mp->nohomeok));
+				set_bit(META_dirty, &mp->flag);
+				set_bit(META_sync, &mp->flag);
+			}
+		}
+	}
+}
+
+
+/*
+ *      txUpdateMap()
+ *
+ * function:    update persistent allocation map (and working map
+ *              if appropriate);
+ *
+ * parameter:
+ */
+static void txUpdateMap(struct tblock * tblk)
+{
+	struct inode *ip;
+	struct inode *ipimap;
+	lid_t lid;
+	struct tlock *tlck;
+	struct maplock *maplock;
+	struct pxd_lock pxdlock;
+	int maptype;
+	int k, nlock;
+	struct metapage *mp = 0;
+
+	ipimap = JFS_SBI(tblk->sb)->ipimap;
+
+	maptype = (tblk->xflag & COMMIT_PMAP) ? COMMIT_PMAP : COMMIT_PWMAP;
+
+
+	/*
+	 *      update block allocation map
+	 *
+	 * update allocation state in pmap (and wmap) and
+	 * update lsn of the pmap page;
+	 */
+	/*
+	 * scan each tlock/page of transaction for block allocation/free:
+	 *
+	 * for each tlock/page of transaction, update map.
+	 *  ? are there tlock for pmap and pwmap at the same time ?
+	 */
+	for (lid = tblk->next; lid; lid = tlck->next) {
+		tlck = lid_to_tlock(lid);
+
+		if ((tlck->flag & tlckUPDATEMAP) == 0)
+			continue;
+
+		if (tlck->flag & tlckFREEPAGE) {
+			/*
+			 * Another thread may attempt to reuse freed space
+			 * immediately, so we want to get rid of the metapage
+			 * before anyone else has a chance to get it.
+			 * Lock metapage, update maps, then invalidate
+			 * the metapage.
+			 */
+			mp = tlck->mp;
+			ASSERT(mp->xflag & COMMIT_PAGE);
+			hold_metapage(mp, 0);
+		}
+
+		/*
+		 * extent list:
+		 * . in-line PXD list:
+		 * . out-of-line XAD list:
+		 */
+		maplock = (struct maplock *) & tlck->lock;
+		nlock = maplock->index;
+
+		for (k = 0; k < nlock; k++, maplock++) {
+			/*
+			 * allocate blocks in persistent map:
+			 *
+			 * blocks have been allocated from wmap at alloc time;
+			 */
+			if (maplock->flag & mlckALLOC) {
+				txAllocPMap(ipimap, maplock, tblk);
+			}
+			/*
+			 * free blocks in persistent and working map:
+			 * blocks will be freed in pmap and then in wmap;
+			 *
+			 * ? tblock specifies the PMAP/PWMAP based upon
+			 * transaction
+			 *
+			 * free blocks in persistent map:
+			 * blocks will be freed from wmap at last reference
+			 * release of the object for regular files;
+			 *
+			 * Alway free blocks from both persistent & working
+			 * maps for directories
+			 */
+			else {	/* (maplock->flag & mlckFREE) */
+
+				if (S_ISDIR(tlck->ip->i_mode))
+					txFreeMap(ipimap, maplock,
+						  tblk, COMMIT_PWMAP);
+				else
+					txFreeMap(ipimap, maplock,
+						  tblk, maptype);
+			}
+		}
+		if (tlck->flag & tlckFREEPAGE) {
+			if (!(tblk->flag & tblkGC_LAZY)) {
+				/* This is equivalent to txRelease */
+				ASSERT(mp->lid == lid);
+				tlck->mp->lid = 0;
+			}
+			assert(atomic_read(&mp->nohomeok) == 1);
+			atomic_dec(&mp->nohomeok);
+			discard_metapage(mp);
+			tlck->mp = 0;
+		}
+	}
+	/*
+	 *      update inode allocation map
+	 *
+	 * update allocation state in pmap and
+	 * update lsn of the pmap page;
+	 * update in-memory inode flag/state
+	 *
+	 * unlock mapper/write lock
+	 */
+	if (tblk->xflag & COMMIT_CREATE) {
+		ip = tblk->ip;
+
+		ASSERT(test_cflag(COMMIT_New, ip));
+		clear_cflag(COMMIT_New, ip);
+
+		diUpdatePMap(ipimap, ip->i_ino, FALSE, tblk);
+		ipimap->i_state |= I_DIRTY;
+		/* update persistent block allocation map
+		 * for the allocation of inode extent;
+		 */
+		pxdlock.flag = mlckALLOCPXD;
+		pxdlock.pxd = JFS_IP(ip)->ixpxd;
+		pxdlock.index = 1;
+		txAllocPMap(ip, (struct maplock *) & pxdlock, tblk);
+		iput(ip);
+	} else if (tblk->xflag & COMMIT_DELETE) {
+		ip = tblk->ip;
+		diUpdatePMap(ipimap, ip->i_ino, TRUE, tblk);
+		ipimap->i_state |= I_DIRTY;
+		iput(ip);
+	}
+}
+
+
+/*
+ *      txAllocPMap()
+ *
+ * function: allocate from persistent map;
+ *
+ * parameter:
+ *      ipbmap  -
+ *      malock -
+ *              xad list:
+ *              pxd:
+ *
+ *      maptype -
+ *              allocate from persistent map;
+ *              free from persistent map;
+ *              (e.g., tmp file - free from working map at releae
+ *               of last reference);
+ *              free from persistent and working map;
+ *
+ *      lsn     - log sequence number;
+ */
+static void txAllocPMap(struct inode *ip, struct maplock * maplock,
+			struct tblock * tblk)
+{
+	struct inode *ipbmap = JFS_SBI(ip->i_sb)->ipbmap;
+	struct xdlistlock *xadlistlock;
+	xad_t *xad;
+	s64 xaddr;
+	int xlen;
+	struct pxd_lock *pxdlock;
+	struct xdlistlock *pxdlistlock;
+	pxd_t *pxd;
+	int n;
+
+	/*
+	 * allocate from persistent map;
+	 */
+	if (maplock->flag & mlckALLOCXADLIST) {
+		xadlistlock = (struct xdlistlock *) maplock;
+		xad = xadlistlock->xdlist;
+		for (n = 0; n < xadlistlock->count; n++, xad++) {
+			if (xad->flag & (XAD_NEW | XAD_EXTENDED)) {
+				xaddr = addressXAD(xad);
+				xlen = lengthXAD(xad);
+				dbUpdatePMap(ipbmap, FALSE, xaddr,
+					     (s64) xlen, tblk);
+				xad->flag &= ~(XAD_NEW | XAD_EXTENDED);
+				jfs_info("allocPMap: xaddr:0x%lx xlen:%d",
+					 (ulong) xaddr, xlen);
+			}
+		}
+	} else if (maplock->flag & mlckALLOCPXD) {
+		pxdlock = (struct pxd_lock *) maplock;
+		xaddr = addressPXD(&pxdlock->pxd);
+		xlen = lengthPXD(&pxdlock->pxd);
+		dbUpdatePMap(ipbmap, FALSE, xaddr, (s64) xlen, tblk);
+		jfs_info("allocPMap: xaddr:0x%lx xlen:%d", (ulong) xaddr, xlen);
+	} else {		/* (maplock->flag & mlckALLOCPXDLIST) */
+
+		pxdlistlock = (struct xdlistlock *) maplock;
+		pxd = pxdlistlock->xdlist;
+		for (n = 0; n < pxdlistlock->count; n++, pxd++) {
+			xaddr = addressPXD(pxd);
+			xlen = lengthPXD(pxd);
+			dbUpdatePMap(ipbmap, FALSE, xaddr, (s64) xlen,
+				     tblk);
+			jfs_info("allocPMap: xaddr:0x%lx xlen:%d",
+				 (ulong) xaddr, xlen);
+		}
+	}
+}
+
+
+/*
+ *      txFreeMap()
+ *
+ * function:    free from persistent and/or working map;
+ *
+ * todo: optimization
+ */
+void txFreeMap(struct inode *ip,
+	       struct maplock * maplock, struct tblock * tblk, int maptype)
+{
+	struct inode *ipbmap = JFS_SBI(ip->i_sb)->ipbmap;
+	struct xdlistlock *xadlistlock;
+	xad_t *xad;
+	s64 xaddr;
+	int xlen;
+	struct pxd_lock *pxdlock;
+	struct xdlistlock *pxdlistlock;
+	pxd_t *pxd;
+	int n;
+
+	jfs_info("txFreeMap: tblk:0x%p maplock:0x%p maptype:0x%x",
+		 tblk, maplock, maptype);
+
+	/*
+	 * free from persistent map;
+	 */
+	if (maptype == COMMIT_PMAP || maptype == COMMIT_PWMAP) {
+		if (maplock->flag & mlckFREEXADLIST) {
+			xadlistlock = (struct xdlistlock *) maplock;
+			xad = xadlistlock->xdlist;
+			for (n = 0; n < xadlistlock->count; n++, xad++) {
+				if (!(xad->flag & XAD_NEW)) {
+					xaddr = addressXAD(xad);
+					xlen = lengthXAD(xad);
+					dbUpdatePMap(ipbmap, TRUE, xaddr,
+						     (s64) xlen, tblk);
+					jfs_info("freePMap: xaddr:0x%lx "
+						 "xlen:%d",
+						 (ulong) xaddr, xlen);
+				}
+			}
+		} else if (maplock->flag & mlckFREEPXD) {
+			pxdlock = (struct pxd_lock *) maplock;
+			xaddr = addressPXD(&pxdlock->pxd);
+			xlen = lengthPXD(&pxdlock->pxd);
+			dbUpdatePMap(ipbmap, TRUE, xaddr, (s64) xlen,
+				     tblk);
+			jfs_info("freePMap: xaddr:0x%lx xlen:%d",
+				 (ulong) xaddr, xlen);
+		} else {	/* (maplock->flag & mlckALLOCPXDLIST) */
+
+			pxdlistlock = (struct xdlistlock *) maplock;
+			pxd = pxdlistlock->xdlist;
+			for (n = 0; n < pxdlistlock->count; n++, pxd++) {
+				xaddr = addressPXD(pxd);
+				xlen = lengthPXD(pxd);
+				dbUpdatePMap(ipbmap, TRUE, xaddr,
+					     (s64) xlen, tblk);
+				jfs_info("freePMap: xaddr:0x%lx xlen:%d",
+					 (ulong) xaddr, xlen);
+			}
+		}
+	}
+
+	/*
+	 * free from working map;
+	 */
+	if (maptype == COMMIT_PWMAP || maptype == COMMIT_WMAP) {
+		if (maplock->flag & mlckFREEXADLIST) {
+			xadlistlock = (struct xdlistlock *) maplock;
+			xad = xadlistlock->xdlist;
+			for (n = 0; n < xadlistlock->count; n++, xad++) {
+				xaddr = addressXAD(xad);
+				xlen = lengthXAD(xad);
+				dbFree(ip, xaddr, (s64) xlen);
+				xad->flag = 0;
+				jfs_info("freeWMap: xaddr:0x%lx xlen:%d",
+					 (ulong) xaddr, xlen);
+			}
+		} else if (maplock->flag & mlckFREEPXD) {
+			pxdlock = (struct pxd_lock *) maplock;
+			xaddr = addressPXD(&pxdlock->pxd);
+			xlen = lengthPXD(&pxdlock->pxd);
+			dbFree(ip, xaddr, (s64) xlen);
+			jfs_info("freeWMap: xaddr:0x%lx xlen:%d",
+				 (ulong) xaddr, xlen);
+		} else {	/* (maplock->flag & mlckFREEPXDLIST) */
+
+			pxdlistlock = (struct xdlistlock *) maplock;
+			pxd = pxdlistlock->xdlist;
+			for (n = 0; n < pxdlistlock->count; n++, pxd++) {
+				xaddr = addressPXD(pxd);
+				xlen = lengthPXD(pxd);
+				dbFree(ip, xaddr, (s64) xlen);
+				jfs_info("freeWMap: xaddr:0x%lx xlen:%d",
+					 (ulong) xaddr, xlen);
+			}
+		}
+	}
+}
+
+
+/*
+ *      txFreelock()
+ *
+ * function:    remove tlock from inode anonymous locklist
+ */
+void txFreelock(struct inode *ip)
+{
+	struct jfs_inode_info *jfs_ip = JFS_IP(ip);
+	struct tlock *xtlck, *tlck;
+	lid_t xlid = 0, lid;
+
+	if (!jfs_ip->atlhead)
+		return;
+
+	xtlck = (struct tlock *) &jfs_ip->atlhead;
+
+	while ((lid = xtlck->next)) {
+		tlck = lid_to_tlock(lid);
+		if (tlck->flag & tlckFREELOCK) {
+			xtlck->next = tlck->next;
+			txLockFree(lid);
+		} else {
+			xtlck = tlck;
+			xlid = lid;
+		}
+	}
+
+	if (jfs_ip->atlhead)
+		jfs_ip->atltail = xlid;
+	else {
+		jfs_ip->atltail = 0;
+		/*
+		 * If inode was on anon_list, remove it
+		 */
+		TXN_LOCK();
+		list_del_init(&jfs_ip->anon_inode_list);
+		TXN_UNLOCK();
+	}
+}
+
+
+/*
+ *      txAbort()
+ *
+ * function: abort tx before commit;
+ *
+ * frees line-locks and segment locks for all
+ * segments in comdata structure.
+ * Optionally sets state of file-system to FM_DIRTY in super-block.
+ * log age of page-frames in memory for which caller has
+ * are reset to 0 (to avoid logwarap).
+ */
+void txAbort(tid_t tid, int dirty)
+{
+	lid_t lid, next;
+	struct metapage *mp;
+	struct tblock *tblk = tid_to_tblock(tid);
+	struct tlock *tlck;
+
+	jfs_warn("txAbort: tid:%d dirty:0x%x", tid, dirty);
+
+	/*
+	 * free tlocks of the transaction
+	 */
+	for (lid = tblk->next; lid; lid = next) {
+		tlck = lid_to_tlock(lid);
+		next = tlck->next;
+		mp = tlck->mp;
+		JFS_IP(tlck->ip)->xtlid = 0;
+
+		if (mp) {
+			mp->lid = 0;
+
+			/*
+			 * reset lsn of page to avoid logwarap:
+			 *
+			 * (page may have been previously committed by another
+			 * transaction(s) but has not been paged, i.e.,
+			 * it may be on logsync list even though it has not
+			 * been logged for the current tx.)
+			 */
+			if (mp->xflag & COMMIT_PAGE && mp->lsn)
+				LogSyncRelease(mp);
+		}
+		/* insert tlock at head of freelist */
+		TXN_LOCK();
+		txLockFree(lid);
+		TXN_UNLOCK();
+	}
+
+	/* caller will free the transaction block */
+
+	tblk->next = tblk->last = 0;
+
+	/*
+	 * mark filesystem dirty
+	 */
+	if (dirty)
+		jfs_error(tblk->sb, "txAbort");
+
+	return;
+}
+
+/*
+ *      txLazyCommit(void)
+ *
+ *	All transactions except those changing ipimap (COMMIT_FORCE) are
+ *	processed by this routine.  This insures that the inode and block
+ *	allocation maps are updated in order.  For synchronous transactions,
+ *	let the user thread finish processing after txUpdateMap() is called.
+ */
+static void txLazyCommit(struct tblock * tblk)
+{
+	struct jfs_log *log;
+
+	while (((tblk->flag & tblkGC_READY) == 0) &&
+	       ((tblk->flag & tblkGC_UNLOCKED) == 0)) {
+		/* We must have gotten ahead of the user thread
+		 */
+		jfs_info("txLazyCommit: tblk 0x%p not unlocked", tblk);
+		yield();
+	}
+
+	jfs_info("txLazyCommit: processing tblk 0x%p", tblk);
+
+	txUpdateMap(tblk);
+
+	log = (struct jfs_log *) JFS_SBI(tblk->sb)->log;
+
+	spin_lock_irq(&log->gclock);	// LOGGC_LOCK
+
+	tblk->flag |= tblkGC_COMMITTED;
+
+	if (tblk->flag & tblkGC_READY)
+		log->gcrtc--;
+
+	wake_up_all(&tblk->gcwait);	// LOGGC_WAKEUP
+
+	/*
+	 * Can't release log->gclock until we've tested tblk->flag
+	 */
+	if (tblk->flag & tblkGC_LAZY) {
+		spin_unlock_irq(&log->gclock);	// LOGGC_UNLOCK
+		txUnlock(tblk);
+		tblk->flag &= ~tblkGC_LAZY;
+		txEnd(tblk - TxBlock);	/* Convert back to tid */
+	} else
+		spin_unlock_irq(&log->gclock);	// LOGGC_UNLOCK
+
+	jfs_info("txLazyCommit: done: tblk = 0x%p", tblk);
+}
+
+/*
+ *      jfs_lazycommit(void)
+ *
+ *	To be run as a kernel daemon.  If lbmIODone is called in an interrupt
+ *	context, or where blocking is not wanted, this routine will process
+ *	committed transactions from the unlock queue.
+ */
+int jfs_lazycommit(void *arg)
+{
+	int WorkDone;
+	struct tblock *tblk;
+	unsigned long flags;
+
+	lock_kernel();
+
+	daemonize();
+	current->tty = NULL;
+	strcpy(current->comm, "jfsCommit");
+
+	unlock_kernel();
+
+	jfsCommitTask = current;
+
+	spin_lock_irq(&current->sigmask_lock);
+	sigfillset(&current->blocked);
+	recalc_sigpending(current);
+	spin_unlock_irq(&current->sigmask_lock);
+
+	LAZY_LOCK_INIT();
+	TxAnchor.unlock_queue = TxAnchor.unlock_tail = 0;
+
+	complete(&jfsIOwait);
+
+	do {
+		DECLARE_WAITQUEUE(wq, current);
+
+		LAZY_LOCK(flags);
+restart:
+		WorkDone = 0;
+		while ((tblk = TxAnchor.unlock_queue)) {
+			/*
+			 * We can't get ahead of user thread.  Spinning is
+			 * simpler than blocking/waking.  We shouldn't spin
+			 * very long, since user thread shouldn't be blocking
+			 * between lmGroupCommit & txEnd.
+			 */
+			WorkDone = 1;
+
+			/*
+			 * Remove first transaction from queue
+			 */
+			TxAnchor.unlock_queue = tblk->cqnext;
+			tblk->cqnext = 0;
+			if (TxAnchor.unlock_tail == tblk)
+				TxAnchor.unlock_tail = 0;
+
+			LAZY_UNLOCK(flags);
+			txLazyCommit(tblk);
+
+			/*
+			 * We can be running indefinately if other processors
+			 * are adding transactions to this list
+			 */
+			cond_resched();
+			LAZY_LOCK(flags);
+		}
+
+		if (WorkDone)
+			goto restart;
+
+		add_wait_queue(&jfs_commit_thread_wait, &wq);
+		set_current_state(TASK_INTERRUPTIBLE);
+		LAZY_UNLOCK(flags);
+		schedule();
+		current->state = TASK_RUNNING;
+		remove_wait_queue(&jfs_commit_thread_wait, &wq);
+	} while (!jfs_stop_threads);
+
+	if (TxAnchor.unlock_queue)
+		jfs_err("jfs_lazycommit being killed w/pending transactions!");
+	else
+		jfs_info("jfs_lazycommit being killed\n");
+	complete_and_exit(&jfsIOwait, 0);
+}
+
+void txLazyUnlock(struct tblock * tblk)
+{
+	unsigned long flags;
+
+	LAZY_LOCK(flags);
+
+	if (TxAnchor.unlock_tail)
+		TxAnchor.unlock_tail->cqnext = tblk;
+	else
+		TxAnchor.unlock_queue = tblk;
+	TxAnchor.unlock_tail = tblk;
+	tblk->cqnext = 0;
+	LAZY_UNLOCK(flags);
+	wake_up(&jfs_commit_thread_wait);
+}
+
+static void LogSyncRelease(struct metapage * mp)
+{
+	struct jfs_log *log = mp->log;
+
+	assert(atomic_read(&mp->nohomeok));
+	assert(log);
+	atomic_dec(&mp->nohomeok);
+
+	if (atomic_read(&mp->nohomeok))
+		return;
+
+	hold_metapage(mp, 0);
+
+	LOGSYNC_LOCK(log);
+	mp->log = NULL;
+	mp->lsn = 0;
+	mp->clsn = 0;
+	log->count--;
+	list_del_init(&mp->synclist);
+	LOGSYNC_UNLOCK(log);
+
+	release_metapage(mp);
+}
+
+/*
+ *	txQuiesce
+ *
+ *	Block all new transactions and push anonymous transactions to
+ *	completion
+ *
+ *	This does almost the same thing as jfs_sync below.  We don't
+ *	worry about deadlocking when TlocksLow is set, since we would
+ *	expect jfs_sync to get us out of that jam.
+ */
+void txQuiesce(struct super_block *sb)
+{
+	struct inode *ip;
+	struct jfs_inode_info *jfs_ip;
+	struct jfs_log *log = JFS_SBI(sb)->log;
+	tid_t tid;
+
+	set_bit(log_QUIESCE, &log->flag);
+
+	TXN_LOCK();
+restart:
+	while (!list_empty(&TxAnchor.anon_list)) {
+		jfs_ip = list_entry(TxAnchor.anon_list.next,
+				    struct jfs_inode_info,
+				    anon_inode_list);
+		ip = jfs_ip->inode;
+
+		/*
+		 * inode will be removed from anonymous list
+		 * when it is committed
+		 */
+		TXN_UNLOCK();
+		tid = txBegin(ip->i_sb, COMMIT_INODE | COMMIT_FORCE);
+		down(&jfs_ip->commit_sem);
+		txCommit(tid, 1, &ip, 0);
+		txEnd(tid);
+		up(&jfs_ip->commit_sem);
+		/*
+		 * Just to be safe.  I don't know how
+		 * long we can run without blocking
+		 */
+		cond_resched();
+		TXN_LOCK();
+	}
+
+	/*
+	 * If jfs_sync is running in parallel, there could be some inodes
+	 * on anon_list2.  Let's check.
+	 */
+	if (!list_empty(&TxAnchor.anon_list2)) {
+		list_splice(&TxAnchor.anon_list2, &TxAnchor.anon_list);
+		INIT_LIST_HEAD(&TxAnchor.anon_list2);
+		goto restart;
+	}
+	TXN_UNLOCK();
+
+	/*
+	 * We may need to kick off the group commit
+	 */
+	jfs_flush_journal(log, 0);
+}
+
+/*
+ * txResume()
+ *
+ * Allows transactions to start again following txQuiesce
+ */
+void txResume(struct super_block *sb)
+{
+	struct jfs_log *log = JFS_SBI(sb)->log;
+
+	clear_bit(log_QUIESCE, &log->flag);
+	TXN_WAKEUP(&log->syncwait);
+}
+
+/*
+ *      jfs_sync(void)
+ *
+ *	To be run as a kernel daemon.  This is awakened when tlocks run low.
+ *	We write any inodes that have anonymous tlocks so they will become
+ *	available.
+ */
+int jfs_sync(void *arg)
+{
+	struct inode *ip;
+	struct jfs_inode_info *jfs_ip;
+	int rc;
+	tid_t tid;
+
+	lock_kernel();
+
+	daemonize();
+	current->tty = NULL;
+	strcpy(current->comm, "jfsSync");
+
+	unlock_kernel();
+
+	spin_lock_irq(&current->sigmask_lock);
+	sigfillset(&current->blocked);
+	recalc_sigpending(current);
+	spin_unlock_irq(&current->sigmask_lock);
+
+	complete(&jfsIOwait);
+
+	do {
+		DECLARE_WAITQUEUE(wq, current);
+		/*
+		 * write each inode on the anonymous inode list
+		 */
+		TXN_LOCK();
+		while (TxAnchor.TlocksLow && !list_empty(&TxAnchor.anon_list)) {
+			jfs_ip = list_entry(TxAnchor.anon_list.next,
+					    struct jfs_inode_info,
+					    anon_inode_list);
+			ip = jfs_ip->inode;
+
+			if (! igrab(ip)) {
+				/*
+				 * Inode is being freed
+				 */
+				list_del_init(&jfs_ip->anon_inode_list);
+			} else if (! down_trylock(&jfs_ip->commit_sem)) {
+				/*
+				 * inode will be removed from anonymous list
+				 * when it is committed
+				 */
+				TXN_UNLOCK();
+				tid = txBegin(ip->i_sb, COMMIT_INODE);
+				rc = txCommit(tid, 1, &ip, 0);
+				txEnd(tid);
+				up(&jfs_ip->commit_sem);
+
+				iput(ip);
+				/*
+				 * Just to be safe.  I don't know how
+				 * long we can run without blocking
+				 */
+				cond_resched();
+				TXN_LOCK();
+			} else {
+				/* We can't get the commit semaphore.  It may
+				 * be held by a thread waiting for tlock's
+				 * so let's not block here.  Save it to
+				 * put back on the anon_list.
+				 */
+
+				/* Take off anon_list */
+				list_del(&jfs_ip->anon_inode_list);
+
+				/* Put on anon_list2 */
+				list_add(&jfs_ip->anon_inode_list,
+					 &TxAnchor.anon_list2);
+
+				TXN_UNLOCK();
+				iput(ip);
+				TXN_LOCK();
+			}
+		}
+		/* Add anon_list2 back to anon_list */
+		if (!list_empty(&TxAnchor.anon_list2)) {
+			list_splice(&TxAnchor.anon_list2, &TxAnchor.anon_list);
+			INIT_LIST_HEAD(&TxAnchor.anon_list2);
+		}
+		add_wait_queue(&jfs_sync_thread_wait, &wq);
+		set_current_state(TASK_INTERRUPTIBLE);
+		TXN_UNLOCK();
+		schedule();
+		current->state = TASK_RUNNING;
+		remove_wait_queue(&jfs_sync_thread_wait, &wq);
+	} while (!jfs_stop_threads);
+
+	jfs_info("jfs_sync being killed");
+	complete_and_exit(&jfsIOwait, 0);
+}
+
+#if defined(CONFIG_PROC_FS) && defined(CONFIG_JFS_DEBUG)
+int jfs_txanchor_read(char *buffer, char **start, off_t offset, int length,
+		      int *eof, void *data)
+{
+	int len = 0;
+	off_t begin;
+	char *freewait;
+	char *freelockwait;
+	char *lowlockwait;
+
+	freewait =
+	    waitqueue_active(&TxAnchor.freewait) ? "active" : "empty";
+	freelockwait =
+	    waitqueue_active(&TxAnchor.freelockwait) ? "active" : "empty";
+	lowlockwait =
+	    waitqueue_active(&TxAnchor.lowlockwait) ? "active" : "empty";
+
+	len += sprintf(buffer,
+		       "JFS TxAnchor\n"
+		       "============\n"
+		       "freetid = %d\n"
+		       "freewait = %s\n"
+		       "freelock = %d\n"
+		       "freelockwait = %s\n"
+		       "lowlockwait = %s\n"
+		       "tlocksInUse = %d\n"
+		       "TlocksLow = %d\n"
+		       "unlock_queue = 0x%p\n"
+		       "unlock_tail = 0x%p\n",
+		       TxAnchor.freetid,
+		       freewait,
+		       TxAnchor.freelock,
+		       freelockwait,
+		       lowlockwait,
+		       TxAnchor.tlocksInUse,
+		       TxAnchor.TlocksLow,
+		       TxAnchor.unlock_queue,
+		       TxAnchor.unlock_tail);
+
+	begin = offset;
+	*start = buffer + begin;
+	len -= begin;
+
+	if (len > length)
+		len = length;
+	else
+		*eof = 1;
+
+	if (len < 0)
+		len = 0;
+
+	return len;
+}
+#endif
+
+#if defined(CONFIG_PROC_FS) && defined(CONFIG_JFS_STATISTICS)
+int jfs_txstats_read(char *buffer, char **start, off_t offset, int length,
+		     int *eof, void *data)
+{
+	int len = 0;
+	off_t begin;
+
+	len += sprintf(buffer,
+		       "JFS TxStats\n"
+		       "===========\n"
+		       "calls to txBegin = %d\n"
+		       "txBegin blocked by sync barrier = %d\n"
+		       "txBegin blocked by tlocks low = %d\n"
+		       "txBegin blocked by no free tid = %d\n"
+		       "calls to txBeginAnon = %d\n"
+		       "txBeginAnon blocked by sync barrier = %d\n"
+		       "txBeginAnon blocked by tlocks low = %d\n"
+		       "calls to txLockAlloc = %d\n"
+		       "tLockAlloc blocked by no free lock = %d\n",
+		       TxStat.txBegin,
+		       TxStat.txBegin_barrier,
+		       TxStat.txBegin_lockslow,
+		       TxStat.txBegin_freetid,
+		       TxStat.txBeginAnon,
+		       TxStat.txBeginAnon_barrier,
+		       TxStat.txBeginAnon_lockslow,
+		       TxStat.txLockAlloc,
+		       TxStat.txLockAlloc_freelock);
+
+	begin = offset;
+	*start = buffer + begin;
+	len -= begin;
+
+	if (len > length)
+		len = length;
+	else
+		*eof = 1;
+
+	if (len < 0)
+		len = 0;
+
+	return len;
+}
+#endif
diff --git a/fs/jfs/jfs_txnmgr.h b/fs/jfs/jfs_txnmgr.h
new file mode 100644
index 00000000000000..020c67ad2d6c4b
--- /dev/null
+++ b/fs/jfs/jfs_txnmgr.h
@@ -0,0 +1,314 @@
+/*
+ *   Copyright (C) International Business Machines Corp., 2000-2004
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef _H_JFS_TXNMGR
+#define _H_JFS_TXNMGR
+
+#include "jfs_logmgr.h"
+
+/*
+ * Hide implementation of TxBlock and TxLock
+ */
+#define tid_to_tblock(tid) (&TxBlock[tid])
+
+#define lid_to_tlock(lid) (&TxLock[lid])
+
+/*
+ *	transaction block
+ */
+struct tblock {
+	/*
+	 * tblock and jbuf_t common area: struct logsyncblk
+	 *
+	 * the following 5 fields are the same as struct logsyncblk
+	 * which is common to tblock and jbuf to form logsynclist
+	 */
+	u16 xflag;		/* tx commit type */
+	u16 flag;		/* tx commit state */
+	lid_t dummy;		/* Must keep structures common */
+	s32 lsn;		/* recovery lsn */
+	struct list_head synclist;	/* logsynclist link */
+
+	/* lock management */
+	struct super_block *sb;	/* super block */
+	lid_t next;		/* index of first tlock of tid */
+	lid_t last;		/* index of last tlock of tid */
+	wait_queue_head_t waitor;	/* tids waiting on this tid */
+
+	/* log management */
+	u32 logtid;		/* log transaction id */
+
+	/* commit management */
+	struct tblock *cqnext;	/* commit queue link */
+	s32 clsn;		/* commit lsn */
+	struct lbuf *bp;
+	s32 pn;			/* commit record log page number */
+	s32 eor;		/* commit record eor */
+	wait_queue_head_t gcwait;	/* group commit event list:
+					 * ready transactions wait on this
+					 * event for group commit completion.
+					 */
+	struct inode *ip;	/* inode being created or deleted */
+};
+
+extern struct tblock *TxBlock;	/* transaction block table */
+
+/* commit flags: tblk->xflag */
+#define	COMMIT_SYNC	0x0001	/* synchronous commit */
+#define	COMMIT_FORCE	0x0002	/* force pageout at end of commit */
+#define	COMMIT_FLUSH	0x0004	/* init flush at end of commit */
+#define COMMIT_MAP	0x00f0
+#define	COMMIT_PMAP	0x0010	/* update pmap */
+#define	COMMIT_WMAP	0x0020	/* update wmap */
+#define	COMMIT_PWMAP	0x0040	/* update pwmap */
+#define	COMMIT_FREE	0x0f00
+#define	COMMIT_DELETE	0x0100	/* inode delete */
+#define	COMMIT_TRUNCATE	0x0200	/* file truncation */
+#define	COMMIT_CREATE	0x0400	/* inode create */
+#define	COMMIT_LAZY	0x0800	/* lazy commit */
+#define COMMIT_PAGE	0x1000	/* Identifies element as metapage */
+#define COMMIT_INODE	0x2000	/* Identifies element as inode */
+
+/* group commit flags tblk->flag: see jfs_logmgr.h */
+
+/*
+ *	transaction lock
+ */
+struct tlock {
+	lid_t next;		/* 2: index next lockword on tid locklist
+				 *          next lockword on freelist
+				 */
+	tid_t tid;		/* 2: transaction id holding lock */
+
+	u16 flag;		/* 2: lock control */
+	u16 type;		/* 2: log type */
+
+	struct metapage *mp;	/* 4/8: object page buffer locked */
+	struct inode *ip;	/* 4/8: object */
+	/* (16) */
+
+	s16 lock[24];		/* 48: overlay area */
+};				/* (64) */
+
+extern struct tlock *TxLock;	/* transaction lock table */
+
+/*
+ * tlock flag
+ */
+/* txLock state */
+#define tlckPAGELOCK		0x8000
+#define tlckINODELOCK		0x4000
+#define tlckLINELOCK		0x2000
+#define tlckINLINELOCK		0x1000
+/* lmLog state */
+#define tlckLOG			0x0800
+/* updateMap state */
+#define	tlckUPDATEMAP		0x0080
+/* freeLock state */
+#define tlckFREELOCK		0x0008
+#define tlckWRITEPAGE		0x0004
+#define tlckFREEPAGE		0x0002
+
+/*
+ * tlock type
+ */
+#define	tlckTYPE		0xfe00
+#define	tlckINODE		0x8000
+#define	tlckXTREE		0x4000
+#define	tlckDTREE		0x2000
+#define	tlckMAP			0x1000
+#define	tlckEA			0x0800
+#define	tlckACL			0x0400
+#define	tlckDATA		0x0200
+#define	tlckBTROOT		0x0100
+
+#define	tlckOPERATION		0x00ff
+#define tlckGROW		0x0001	/* file grow */
+#define tlckREMOVE		0x0002	/* file delete */
+#define tlckTRUNCATE		0x0004	/* file truncate */
+#define tlckRELOCATE		0x0008	/* file/directory relocate */
+#define tlckENTRY		0x0001	/* directory insert/delete */
+#define tlckEXTEND		0x0002	/* directory extend in-line */
+#define tlckSPLIT		0x0010	/* splited page */
+#define tlckNEW			0x0020	/* new page from split */
+#define tlckFREE		0x0040	/* free page */
+#define tlckRELINK		0x0080	/* update sibling pointer */
+
+/*
+ *	linelock for lmLog()
+ *
+ * note: linelock and its variations are overlaid
+ * at tlock.lock: watch for alignment;
+ */
+struct lv {
+	u8 offset;		/* 1: */
+	u8 length;		/* 1: */
+};				/* (2) */
+
+#define	TLOCKSHORT	20
+#define	TLOCKLONG	28
+
+struct linelock {
+	lid_t next;		/* 2: next linelock */
+
+	s8 maxcnt;		/* 1: */
+	s8 index;		/* 1: */
+
+	u16 flag;		/* 2: */
+	u8 type;		/* 1: */
+	u8 l2linesize;		/* 1: log2 of linesize */
+	/* (8) */
+
+	struct lv lv[20];	/* 40: */
+}; 				/* (48) */
+
+#define dt_lock	linelock
+
+struct xtlock {
+	lid_t next;		/* 2: */
+
+	s8 maxcnt;		/* 1: */
+	s8 index;		/* 1: */
+
+	u16 flag;		/* 2: */
+	u8 type;		/* 1: */
+	u8 l2linesize;		/* 1: log2 of linesize */
+				/* (8) */
+
+	struct lv header;	/* 2: */
+	struct lv lwm;		/* 2: low water mark */
+	struct lv hwm;		/* 2: high water mark */
+	struct lv twm;		/* 2: */
+				/* (16) */
+
+	s32 pxdlock[8];		/* 32: */
+};				/* (48) */
+
+
+/*
+ *	maplock for txUpdateMap()
+ *
+ * note: maplock and its variations are overlaid
+ * at tlock.lock/linelock: watch for alignment;
+ * N.B. next field may be set by linelock, and should not
+ * be modified by maplock;
+ * N.B. index of the first pxdlock specifies index of next 
+ * free maplock (i.e., number of maplock) in the tlock; 
+ */
+struct maplock {
+	lid_t next;		/* 2: */
+
+	u8 maxcnt;		/* 2: */
+	u8 index;		/* 2: next free maplock index */
+
+	u16 flag;		/* 2: */
+	u8 type;		/* 1: */
+	u8 count;		/* 1: number of pxd/xad */
+				/* (8) */
+
+	pxd_t pxd;		/* 8: */
+};				/* (16): */
+
+/* maplock flag */
+#define	mlckALLOC		0x00f0
+#define	mlckALLOCXADLIST	0x0080
+#define	mlckALLOCPXDLIST	0x0040
+#define	mlckALLOCXAD		0x0020
+#define	mlckALLOCPXD		0x0010
+#define	mlckFREE		0x000f
+#define	mlckFREEXADLIST		0x0008
+#define	mlckFREEPXDLIST		0x0004
+#define	mlckFREEXAD		0x0002
+#define	mlckFREEPXD		0x0001
+
+#define	pxd_lock	maplock
+
+struct xdlistlock {
+	lid_t next;		/* 2: */
+
+	u8 maxcnt;		/* 2: */
+	u8 index;		/* 2: */
+
+	u16 flag;		/* 2: */
+	u8 type;		/* 1: */
+	u8 count;		/* 1: number of pxd/xad */
+				/* (8) */
+
+	/*
+	 * We need xdlist to be 64 bits (8 bytes), regardless of
+	 * whether void * is 32 or 64 bits
+	 */
+	union {
+		void *_xdlist;	/* pxd/xad list */
+		s64 pad;	/* 8: Force 64-bit xdlist size */
+	} union64;
+};				/* (16): */
+
+#define xdlist union64._xdlist
+
+/*
+ *	commit
+ *
+ * parameter to the commit manager routines
+ */
+struct commit {
+	tid_t tid;		/* tid = index of tblock */
+	int flag;		/* flags */
+	struct jfs_log *log;	/* log */
+	struct super_block *sb;	/* superblock */
+
+	int nip;		/* number of entries in iplist */
+	struct inode **iplist;	/* list of pointers to inodes */
+
+	/* log record descriptor on 64-bit boundary */
+	struct lrd lrd;		/* : log record descriptor */
+};
+
+/*
+ * external declarations
+ */
+extern struct tlock *txLock(tid_t tid, struct inode *ip, struct metapage *mp,
+			    int flag);
+
+extern struct tlock *txMaplock(tid_t tid, struct inode *ip, int flag);
+
+extern int txCommit(tid_t tid, int nip, struct inode **iplist, int flag);
+
+extern tid_t txBegin(struct super_block *sb, int flag);
+
+extern void txBeginAnon(struct super_block *sb);
+
+extern void txEnd(tid_t tid);
+
+extern void txAbort(tid_t tid, int dirty);
+
+extern struct linelock *txLinelock(struct linelock * tlock);
+
+extern void txFreeMap(struct inode *ip, struct maplock * maplock,
+		      struct tblock * tblk, int maptype);
+
+extern void txEA(tid_t tid, struct inode *ip, dxd_t * oldea, dxd_t * newea);
+
+extern void txFreelock(struct inode *ip);
+
+extern int lmLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
+		 struct tlock * tlck);
+
+extern void txQuiesce(struct super_block *sb);
+
+extern void txResume(struct super_block *sb);
+#endif				/* _H_JFS_TXNMGR */
diff --git a/fs/jfs/jfs_types.h b/fs/jfs/jfs_types.h
new file mode 100644
index 00000000000000..d85eaf22d3c01f
--- /dev/null
+++ b/fs/jfs/jfs_types.h
@@ -0,0 +1,190 @@
+/*
+ *   Copyright (C) International Business Machines Corp., 2000-2004
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef _H_JFS_TYPES
+#define	_H_JFS_TYPES
+
+/*
+ *	jfs_types.h:
+ *
+ * basic type/utility  definitions
+ *
+ * note: this header file must be the 1st include file
+ * of JFS include list in all JFS .c file.
+ */
+
+#include <linux/types.h>
+#include <linux/nls.h>
+
+/*
+ * transaction and lock id's
+ *
+ * Don't change these without carefully considering the impact on the
+ * size and alignment of all of the linelock variants
+ */
+typedef u16 tid_t;
+typedef u16 lid_t;
+
+/*
+ * Almost identical to Linux's timespec, but not quite
+ */
+struct timestruc_t {
+	u32 tv_sec;
+	u32 tv_nsec;
+};
+
+/*
+ *	handy
+ */
+
+#define LEFTMOSTONE	0x80000000
+#define	HIGHORDER	0x80000000u	/* high order bit on            */
+#define	ONES		0xffffffffu	/* all bit on                   */
+
+typedef int boolean_t;
+#define TRUE 1
+#define FALSE 0
+
+/*
+ *	logical xd (lxd)
+ */
+typedef struct {
+	unsigned len:24;
+	unsigned off1:8;
+	u32 off2;
+} lxd_t;
+
+/* lxd_t field construction */
+#define	LXDlength(lxd, length32)	( (lxd)->len = length32 )
+#define	LXDoffset(lxd, offset64)\
+{\
+	(lxd)->off1 = ((s64)offset64) >> 32;\
+	(lxd)->off2 = (offset64) & 0xffffffff;\
+}
+
+/* lxd_t field extraction */
+#define	lengthLXD(lxd)	( (lxd)->len )
+#define	offsetLXD(lxd)\
+	( ((s64)((lxd)->off1)) << 32 | (lxd)->off2 )
+
+/* lxd list */
+struct lxdlist {
+	s16 maxnlxd;
+	s16 nlxd;
+	lxd_t *lxd;
+};
+
+/*
+ *	physical xd (pxd)
+ */
+typedef struct {
+	unsigned len:24;
+	unsigned addr1:8;
+	u32 addr2;
+} pxd_t;
+
+/* xd_t field construction */
+
+#define	PXDlength(pxd, length32)	((pxd)->len = __cpu_to_le24(length32))
+#define	PXDaddress(pxd, address64)\
+{\
+	(pxd)->addr1 = ((s64)address64) >> 32;\
+	(pxd)->addr2 = __cpu_to_le32((address64) & 0xffffffff);\
+}
+
+/* xd_t field extraction */
+#define	lengthPXD(pxd)	__le24_to_cpu((pxd)->len)
+#define	addressPXD(pxd)\
+	( ((s64)((pxd)->addr1)) << 32 | __le32_to_cpu((pxd)->addr2))
+
+#define MAXTREEHEIGHT 8
+/* pxd list */
+struct pxdlist {
+	s16 maxnpxd;
+	s16 npxd;
+	pxd_t pxd[MAXTREEHEIGHT];
+};
+
+
+/*
+ *	data extent descriptor (dxd)
+ */
+typedef struct {
+	unsigned flag:8;	/* 1: flags */
+	unsigned rsrvd:24;	/* 3: */
+	u32 size;		/* 4: size in byte */
+	unsigned len:24;	/* 3: length in unit of fsblksize */
+	unsigned addr1:8;	/* 1: address in unit of fsblksize */
+	u32 addr2;		/* 4: address in unit of fsblksize */
+} dxd_t;			/* - 16 - */
+
+/* dxd_t flags */
+#define	DXD_INDEX	0x80	/* B+-tree index */
+#define	DXD_INLINE	0x40	/* in-line data extent */
+#define	DXD_EXTENT	0x20	/* out-of-line single extent */
+#define	DXD_FILE	0x10	/* out-of-line file (inode) */
+#define DXD_CORRUPT	0x08	/* Inconsistency detected */
+
+/* dxd_t field construction
+ *	Conveniently, the PXD macros work for DXD
+ */
+#define	DXDlength	PXDlength
+#define	DXDaddress	PXDaddress
+#define	lengthDXD	lengthPXD
+#define	addressDXD	addressPXD
+#define	DXDsize(dxd, size32) ((dxd)->size = cpu_to_le32(size32))
+#define	sizeDXD(dxd)	le32_to_cpu((dxd)->size)
+
+/*
+ *      directory entry argument
+ */
+struct component_name {
+	int namlen;
+	wchar_t *name;
+};
+
+
+/*
+ *	DASD limit information - stored in directory inode
+ */
+struct dasd {
+	u8 thresh;		/* Alert Threshold (in percent) */
+	u8 delta;		/* Alert Threshold delta (in percent)   */
+	u8 rsrvd1;
+	u8 limit_hi;		/* DASD limit (in logical blocks)       */
+	u32 limit_lo;		/* DASD limit (in logical blocks)       */
+	u8 rsrvd2[3];
+	u8 used_hi;		/* DASD usage (in logical blocks)       */
+	u32 used_lo;		/* DASD usage (in logical blocks)       */
+};
+
+#define DASDLIMIT(dasdp) \
+	(((u64)((dasdp)->limit_hi) << 32) + __le32_to_cpu((dasdp)->limit_lo))
+#define setDASDLIMIT(dasdp, limit)\
+{\
+	(dasdp)->limit_hi = ((u64)limit) >> 32;\
+	(dasdp)->limit_lo = __cpu_to_le32(limit);\
+}
+#define DASDUSED(dasdp) \
+	(((u64)((dasdp)->used_hi) << 32) + __le32_to_cpu((dasdp)->used_lo))
+#define setDASDUSED(dasdp, used)\
+{\
+	(dasdp)->used_hi = ((u64)used) >> 32;\
+	(dasdp)->used_lo = __cpu_to_le32(used);\
+}
+
+#endif				/* !_H_JFS_TYPES */
diff --git a/fs/jfs/jfs_umount.c b/fs/jfs/jfs_umount.c
new file mode 100644
index 00000000000000..c9fa767198fc17
--- /dev/null
+++ b/fs/jfs/jfs_umount.c
@@ -0,0 +1,162 @@
+/*
+ *   Copyright (c) International Business Machines Corp., 2000-2002
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/*
+ *	jfs_umount.c
+ *
+ * note: file system in transition to aggregate/fileset:
+ * (ref. jfs_mount.c)
+ *
+ * file system unmount is interpreted as mount of the single/only 
+ * fileset in the aggregate and, if unmount of the last fileset, 
+ * as unmount of the aggerate;
+ */
+
+#include <linux/fs.h>
+#include "jfs_incore.h"
+#include "jfs_filsys.h"
+#include "jfs_superblock.h"
+#include "jfs_dmap.h"
+#include "jfs_imap.h"
+#include "jfs_metapage.h"
+#include "jfs_debug.h"
+
+/*
+ * NAME:	jfs_umount(vfsp, flags, crp)
+ *
+ * FUNCTION:	vfs_umount()
+ *
+ * PARAMETERS:	vfsp	- virtual file system pointer
+ *		flags	- unmount for shutdown
+ *		crp	- credential
+ *
+ * RETURN :	EBUSY	- device has open files
+ */
+int jfs_umount(struct super_block *sb)
+{
+	struct jfs_sb_info *sbi = JFS_SBI(sb);
+	struct inode *ipbmap = sbi->ipbmap;
+	struct inode *ipimap = sbi->ipimap;
+	struct inode *ipaimap = sbi->ipaimap;
+	struct inode *ipaimap2 = sbi->ipaimap2;
+	struct jfs_log *log;
+	int rc = 0;
+
+	jfs_info("UnMount JFS: sb:0x%p", sb);
+
+	/*
+	 *      update superblock and close log 
+	 *
+	 * if mounted read-write and log based recovery was enabled
+	 */
+	if ((log = sbi->log))
+		/*
+		 * Wait for outstanding transactions to be written to log: 
+		 */
+		jfs_flush_journal(log, 2);
+
+	/*
+	 * close fileset inode allocation map (aka fileset inode)
+	 */
+	diUnmount(ipimap, 0);
+
+	diFreeSpecial(ipimap);
+	sbi->ipimap = NULL;
+
+	/*
+	 * close secondary aggregate inode allocation map
+	 */
+	ipaimap2 = sbi->ipaimap2;
+	if (ipaimap2) {
+		diUnmount(ipaimap2, 0);
+		diFreeSpecial(ipaimap2);
+		sbi->ipaimap2 = NULL;
+	}
+
+	/*
+	 * close aggregate inode allocation map
+	 */
+	ipaimap = sbi->ipaimap;
+	diUnmount(ipaimap, 0);
+	diFreeSpecial(ipaimap);
+	sbi->ipaimap = NULL;
+
+	/*
+	 * close aggregate block allocation map
+	 */
+	dbUnmount(ipbmap, 0);
+
+	diFreeSpecial(ipbmap);
+	sbi->ipimap = NULL;
+
+	/*
+	 * Make sure all metadata makes it to disk before we mark
+	 * the superblock as clean
+	 */
+	fsync_inode_data_buffers(sb->s_bdev->bd_inode);
+
+	/*
+	 * ensure all file system file pages are propagated to their
+	 * home blocks on disk (and their in-memory buffer pages are 
+	 * invalidated) BEFORE updating file system superblock state
+	 * (to signify file system is unmounted cleanly, and thus in 
+	 * consistent state) and log superblock active file system 
+	 * list (to signify skip logredo()).
+	 */
+	if (log) {		/* log = NULL if read-only mount */
+		rc = updateSuper(sb, FM_CLEAN);
+
+		/*
+		 * close log: 
+		 *
+		 * remove file system from log active file system list.
+		 */
+		rc = lmLogClose(sb, log);
+	}
+	jfs_info("UnMount JFS Complete: rc = %d", rc);
+	return rc;
+}
+
+
+int jfs_umount_rw(struct super_block *sb)
+{
+	struct jfs_sb_info *sbi = JFS_SBI(sb);
+	struct jfs_log *log = sbi->log;
+
+	if (!log)
+		return 0;
+
+	/*
+	 * close log: 
+	 *
+	 * remove file system from log active file system list.
+	 */
+	jfs_flush_journal(log, 2);
+
+	/*
+	 * Make sure all metadata makes it to disk
+	 */
+	dbSync(sbi->ipbmap);
+	diSync(sbi->ipimap);
+	fsync_inode_data_buffers(sb->s_bdev->bd_inode);
+
+	updateSuper(sb, FM_CLEAN);
+	sbi->log = NULL;
+
+	return lmLogClose(sb, log);
+}
diff --git a/fs/jfs/jfs_unicode.c b/fs/jfs/jfs_unicode.c
new file mode 100644
index 00000000000000..ecb0ecc53f3de5
--- /dev/null
+++ b/fs/jfs/jfs_unicode.c
@@ -0,0 +1,138 @@
+/*
+ *   Copyright (C) International Business Machines Corp., 2000-2005
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/fs.h>
+#include <linux/slab.h>
+#include "jfs_incore.h"
+#include "jfs_filsys.h"
+#include "jfs_unicode.h"
+#include "jfs_debug.h"
+
+/*
+ * NAME:	jfs_strfromUCS()
+ *
+ * FUNCTION:	Convert little-endian unicode string to character string
+ *
+ */
+int jfs_strfromUCS_le(char *to, const wchar_t * from,	/* LITTLE ENDIAN */
+		      int len, struct nls_table *codepage)
+{
+	int i;
+	int outlen = 0;
+	static int warn_again = 5;	/* Only warn up to 5 times total */
+	int warn = !!warn_again;	/* once per string */
+
+	if (codepage) {
+		for (i = 0; (i < len) && from[i]; i++) {
+			int charlen;
+			charlen =
+			    codepage->uni2char(le16_to_cpu(from[i]),
+					       &to[outlen],
+					       NLS_MAX_CHARSET_SIZE);
+			if (charlen > 0)
+				outlen += charlen;
+			else
+				to[outlen++] = '?';
+		}
+	} else {
+		for (i = 0; (i < len) && from[i]; i++) {
+			if (le16_to_cpu(from[i]) & 0xff00) {
+				if (warn) {
+					warn--;
+					warn_again--;
+					printk(KERN_ERR
+			"non-latin1 character 0x%x found in JFS file name\n", 
+		       			       le16_to_cpu(from[i]));
+					printk(KERN_ERR
+				"mount with iocharset=utf8 to access\n");
+				}
+				to[i] = '?';
+			}
+			else
+				to[i] = (char) (le16_to_cpu(from[i]));
+		}
+		outlen = i;
+
+	}
+	to[outlen] = 0;
+	return outlen;
+}
+
+/*
+ * NAME:	jfs_strtoUCS()
+ *
+ * FUNCTION:	Convert character string to unicode string
+ *
+ */
+static int jfs_strtoUCS(wchar_t * to, const unsigned char *from, int len,
+		struct nls_table *codepage)
+{
+	int charlen;
+	int i;
+
+	if (codepage) {
+		for (i = 0; len && *from; i++, from += charlen, len -= charlen)
+		{
+			charlen = codepage->char2uni(from, len, &to[i]);
+			if (charlen < 1) {
+				jfs_err("jfs_strtoUCS: char2uni returned %d.",
+					charlen);
+				jfs_err("charset = %s, char = 0x%x",
+					codepage->charset, *from);
+				return charlen;
+			}
+		}
+	} else {
+		for (i = 0; (i < len) && from[i]; i++)
+			to[i] = (wchar_t) from[i];
+	}
+
+	to[i] = 0;
+	return i;
+}
+
+/*
+ * NAME:	get_UCSname()
+ *
+ * FUNCTION:	Allocate and translate to unicode string
+ *
+ */
+int get_UCSname(struct component_name * uniName, struct dentry *dentry)
+{
+	struct nls_table *nls_tab = JFS_SBI(dentry->d_sb)->nls_tab;
+	int length = dentry->d_name.len;
+
+	if (length > JFS_NAME_MAX)
+		return -ENAMETOOLONG;
+
+	uniName->name =
+	    kmalloc((length + 1) * sizeof(wchar_t), GFP_NOFS);
+
+	if (uniName->name == NULL)
+		return -ENOSPC;
+
+	uniName->namlen = jfs_strtoUCS(uniName->name, dentry->d_name.name,
+				       length, nls_tab);
+
+	if (uniName->namlen < 0) {
+		kfree(uniName->name);
+		return uniName->namlen;
+	}
+
+	return 0;
+}
diff --git a/fs/jfs/jfs_unicode.h b/fs/jfs/jfs_unicode.h
new file mode 100644
index 00000000000000..e90c788c2b1ad2
--- /dev/null
+++ b/fs/jfs/jfs_unicode.h
@@ -0,0 +1,139 @@
+/*
+ *   Copyright (C) International Business Machines Corp., 2000-2002
+ *   Portions Copyright (C) Christoph Hellwig, 2001-2002
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef _H_JFS_UNICODE
+#define _H_JFS_UNICODE
+
+#include <asm/byteorder.h>
+#include "jfs_types.h"
+
+typedef struct {
+	wchar_t start;
+	wchar_t end;
+	signed char *table;
+} UNICASERANGE;
+
+extern signed char UniUpperTable[512];
+extern UNICASERANGE UniUpperRange[];
+extern int get_UCSname(struct component_name *, struct dentry *);
+extern int jfs_strfromUCS_le(char *, const wchar_t *, int, struct nls_table *);
+
+#define free_UCSname(COMP) kfree((COMP)->name)
+
+/*
+ * UniStrcpy:  Copy a string
+ */
+static inline wchar_t *UniStrcpy(wchar_t * ucs1, const wchar_t * ucs2)
+{
+	wchar_t *anchor = ucs1;	/* save the start of result string */
+
+	while ((*ucs1++ = *ucs2++));
+	return anchor;
+}
+
+
+
+/*
+ * UniStrncpy:  Copy length limited string with pad
+ */
+static inline wchar_t *UniStrncpy(wchar_t * ucs1, const wchar_t * ucs2,
+				  size_t n)
+{
+	wchar_t *anchor = ucs1;
+
+	while (n-- && *ucs2)	/* Copy the strings */
+		*ucs1++ = *ucs2++;
+
+	n++;
+	while (n--)		/* Pad with nulls */
+		*ucs1++ = 0;
+	return anchor;
+}
+
+/*
+ * UniStrncmp_le:  Compare length limited string - native to little-endian
+ */
+static inline int UniStrncmp_le(const wchar_t * ucs1, const wchar_t * ucs2,
+				size_t n)
+{
+	if (!n)
+		return 0;	/* Null strings are equal */
+	while ((*ucs1 == __le16_to_cpu(*ucs2)) && *ucs1 && --n) {
+		ucs1++;
+		ucs2++;
+	}
+	return (int) *ucs1 - (int) __le16_to_cpu(*ucs2);
+}
+
+/*
+ * UniStrncpy_le:  Copy length limited string with pad to little-endian
+ */
+static inline wchar_t *UniStrncpy_le(wchar_t * ucs1, const wchar_t * ucs2,
+				     size_t n)
+{
+	wchar_t *anchor = ucs1;
+
+	while (n-- && *ucs2)	/* Copy the strings */
+		*ucs1++ = __le16_to_cpu(*ucs2++);
+
+	n++;
+	while (n--)		/* Pad with nulls */
+		*ucs1++ = 0;
+	return anchor;
+}
+
+
+/*
+ * UniToupper:  Convert a unicode character to upper case
+ */
+static inline wchar_t UniToupper(wchar_t uc)
+{
+	UNICASERANGE *rp;
+
+	if (uc < sizeof(UniUpperTable)) {	/* Latin characters */
+		return uc + UniUpperTable[uc];	/* Use base tables */
+	} else {
+		rp = UniUpperRange;	/* Use range tables */
+		while (rp->start) {
+			if (uc < rp->start)	/* Before start of range */
+				return uc;	/* Uppercase = input */
+			if (uc <= rp->end)	/* In range */
+				return uc + rp->table[uc - rp->start];
+			rp++;	/* Try next range */
+		}
+	}
+	return uc;		/* Past last range */
+}
+
+
+/*
+ * UniStrupr:  Upper case a unicode string
+ */
+static inline wchar_t *UniStrupr(wchar_t * upin)
+{
+	wchar_t *up;
+
+	up = upin;
+	while (*up) {		/* For all characters */
+		*up = UniToupper(*up);
+		up++;
+	}
+	return upin;		/* Return input pointer */
+}
+
+#endif				/* !_H_JFS_UNICODE */
diff --git a/fs/jfs/jfs_uniupr.c b/fs/jfs/jfs_uniupr.c
new file mode 100644
index 00000000000000..af63d97bb1af52
--- /dev/null
+++ b/fs/jfs/jfs_uniupr.c
@@ -0,0 +1,134 @@
+/*
+ *   Copyright (c) International Business Machines Corp., 2000-2002
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/fs.h>
+#include "jfs_unicode.h"
+
+/*
+ * Latin upper case
+ */
+signed char UniUpperTable[512] = {
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, /* 000-00f */
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, /* 010-01f */
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, /* 020-02f */
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, /* 030-03f */
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, /* 040-04f */
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, /* 050-05f */
+   0,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32, /* 060-06f */
+ -32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,  0,  0,  0,  0,  0, /* 070-07f */
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, /* 080-08f */
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, /* 090-09f */
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, /* 0a0-0af */
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, /* 0b0-0bf */
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, /* 0c0-0cf */
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, /* 0d0-0df */
+ -32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32, /* 0e0-0ef */
+ -32,-32,-32,-32,-32,-32,-32,  0,-32,-32,-32,-32,-32,-32,-32,121, /* 0f0-0ff */
+   0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1, /* 100-10f */
+   0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1, /* 110-11f */
+   0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1, /* 120-12f */
+   0,  0,  0, -1,  0, -1,  0, -1,  0,  0, -1,  0, -1,  0, -1,  0, /* 130-13f */
+  -1,  0, -1,  0, -1,  0, -1,  0, -1,  0,  0, -1,  0, -1,  0, -1, /* 140-14f */
+   0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1, /* 150-15f */
+   0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1, /* 160-16f */
+   0, -1,  0, -1,  0, -1,  0, -1,  0,  0, -1,  0, -1,  0, -1,  0, /* 170-17f */
+   0,  0,  0, -1,  0, -1,  0,  0, -1,  0,  0,  0, -1,  0,  0,  0, /* 180-18f */
+   0,  0, -1,  0,  0,  0,  0,  0,  0, -1,  0,  0,  0,  0,  0,  0, /* 190-19f */
+   0, -1,  0, -1,  0, -1,  0,  0, -1,  0,  0,  0,  0, -1,  0,  0, /* 1a0-1af */
+  -1,  0,  0,  0, -1,  0, -1,  0,  0, -1,  0,  0,  0, -1,  0,  0, /* 1b0-1bf */
+   0,  0,  0,  0,  0, -1, -2,  0, -1, -2,  0, -1, -2,  0, -1,  0, /* 1c0-1cf */
+  -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,-79,  0, -1, /* 1d0-1df */
+   0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1, /* 1e0-1ef */
+   0,  0, -1, -2,  0, -1,  0,  0,  0, -1,  0, -1,  0, -1,  0, -1, /* 1f0-1ff */
+};
+
+/* Upper case range - Greek */
+static signed char UniCaseRangeU03a0[47] = {
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,-38,-37,-37,-37, /* 3a0-3af */
+   0,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32, /* 3b0-3bf */
+ -32,-32,-31,-32,-32,-32,-32,-32,-32,-32,-32,-32,-64,-63,-63,
+};
+
+/* Upper case range - Cyrillic */
+static signed char UniCaseRangeU0430[48] = {
+ -32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32, /* 430-43f */
+ -32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32, /* 440-44f */
+   0,-80,-80,-80,-80,-80,-80,-80,-80,-80,-80,-80,-80,  0,-80,-80, /* 450-45f */
+};
+
+/* Upper case range - Extended cyrillic */
+static signed char UniCaseRangeU0490[61] = {
+   0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1, /* 490-49f */
+   0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1, /* 4a0-4af */
+   0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1, /* 4b0-4bf */
+   0,  0, -1,  0, -1,  0,  0,  0, -1,  0,  0,  0, -1,
+};
+
+/* Upper case range - Extended latin and greek */
+static signed char UniCaseRangeU1e00[509] = {
+   0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1, /* 1e00-1e0f */
+   0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1, /* 1e10-1e1f */
+   0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1, /* 1e20-1e2f */
+   0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1, /* 1e30-1e3f */
+   0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1, /* 1e40-1e4f */
+   0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1, /* 1e50-1e5f */
+   0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1, /* 1e60-1e6f */
+   0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1, /* 1e70-1e7f */
+   0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1, /* 1e80-1e8f */
+   0, -1,  0, -1,  0, -1,  0,  0,  0,  0,  0,-59,  0, -1,  0, -1, /* 1e90-1e9f */
+   0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1, /* 1ea0-1eaf */
+   0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1, /* 1eb0-1ebf */
+   0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1, /* 1ec0-1ecf */
+   0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1, /* 1ed0-1edf */
+   0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0, -1, /* 1ee0-1eef */
+   0, -1,  0, -1,  0, -1,  0, -1,  0, -1,  0,  0,  0,  0,  0,  0, /* 1ef0-1eff */
+   8,  8,  8,  8,  8,  8,  8,  8,  0,  0,  0,  0,  0,  0,  0,  0, /* 1f00-1f0f */
+   8,  8,  8,  8,  8,  8,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, /* 1f10-1f1f */
+   8,  8,  8,  8,  8,  8,  8,  8,  0,  0,  0,  0,  0,  0,  0,  0, /* 1f20-1f2f */
+   8,  8,  8,  8,  8,  8,  8,  8,  0,  0,  0,  0,  0,  0,  0,  0, /* 1f30-1f3f */
+   8,  8,  8,  8,  8,  8,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, /* 1f40-1f4f */
+   0,  8,  0,  8,  0,  8,  0,  8,  0,  0,  0,  0,  0,  0,  0,  0, /* 1f50-1f5f */
+   8,  8,  8,  8,  8,  8,  8,  8,  0,  0,  0,  0,  0,  0,  0,  0, /* 1f60-1f6f */
+  74, 74, 86, 86, 86, 86,100,100,  0,  0,112,112,126,126,  0,  0, /* 1f70-1f7f */
+   8,  8,  8,  8,  8,  8,  8,  8,  0,  0,  0,  0,  0,  0,  0,  0, /* 1f80-1f8f */
+   8,  8,  8,  8,  8,  8,  8,  8,  0,  0,  0,  0,  0,  0,  0,  0, /* 1f90-1f9f */
+   8,  8,  8,  8,  8,  8,  8,  8,  0,  0,  0,  0,  0,  0,  0,  0, /* 1fa0-1faf */
+   8,  8,  0,  9,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, /* 1fb0-1fbf */
+   0,  0,  0,  9,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, /* 1fc0-1fcf */
+   8,  8,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, /* 1fd0-1fdf */
+   8,  8,  0,  0,  0,  7,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, /* 1fe0-1fef */
+   0,  0,  0,  9,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+};
+
+/* Upper case range - Wide latin */
+static signed char UniCaseRangeUff40[27] = {
+   0,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32, /* ff40-ff4f */
+ -32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,
+};
+
+/*
+ * Upper Case Range
+ */
+UNICASERANGE UniUpperRange[] = {
+    { 0x03a0,  0x03ce,  UniCaseRangeU03a0 },
+    { 0x0430,  0x045f,  UniCaseRangeU0430 },
+    { 0x0490,  0x04cc,  UniCaseRangeU0490 },
+    { 0x1e00,  0x1ffc,  UniCaseRangeU1e00 },
+    { 0xff40,  0xff5a,  UniCaseRangeUff40 },
+    { 0, 0, 0 }
+};
diff --git a/fs/jfs/jfs_xattr.h b/fs/jfs/jfs_xattr.h
new file mode 100644
index 00000000000000..ff32d0b7805dae
--- /dev/null
+++ b/fs/jfs/jfs_xattr.h
@@ -0,0 +1,62 @@
+/*
+ *   Copyright (c) International Business Machines Corp., 2000-2002
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef H_JFS_XATTR
+#define H_JFS_XATTR
+
+/*
+ * jfs_ea_list describe the on-disk format of the extended attributes.
+ * I know the null-terminator is redundant since namelen is stored, but
+ * I am maintaining compatibility with OS/2 where possible.
+ */
+struct jfs_ea {
+	u8 flag;	/* Unused? */
+	u8 namelen;	/* Length of name */
+	u16 valuelen;	/* Length of value */
+	char name[0];	/* Attribute name (includes null-terminator) */
+};			/* Value immediately follows name */
+
+struct jfs_ea_list {
+	u32 size;		/* overall size */
+	struct jfs_ea ea[0];	/* Variable length list */
+};
+
+/* Macros for defining maxiumum number of bytes supported for EAs */
+#define MAXEASIZE	65535
+#define MAXEALISTSIZE	MAXEASIZE
+
+/*
+ * some macros for dealing with variable length EA lists.
+ */
+#define EA_SIZE(ea) \
+	(sizeof (struct jfs_ea) + (ea)->namelen + 1 + \
+	 le16_to_cpu((ea)->valuelen))
+#define	NEXT_EA(ea) ((struct jfs_ea *) (((char *) (ea)) + (EA_SIZE (ea))))
+#define	FIRST_EA(ealist) ((ealist)->ea)
+#define	EALIST_SIZE(ealist) le32_to_cpu((ealist)->size)
+#define	END_EALIST(ealist) \
+	((struct jfs_ea *) (((char *) (ealist)) + EALIST_SIZE(ealist)))
+
+extern int __jfs_setxattr(struct inode *, const char *, void *, size_t, int);
+extern int jfs_setxattr(struct dentry *, const char *, void *, size_t, int);
+extern ssize_t __jfs_getxattr(struct inode *, const char *, void *, size_t);
+extern ssize_t jfs_getxattr(struct dentry *, const char *, void *, size_t);
+extern ssize_t jfs_listxattr(struct dentry *, char *, size_t);
+extern int jfs_removexattr(struct dentry *, const char *);
+
+#endif	/* H_JFS_XATTR */
diff --git a/fs/jfs/jfs_xtree.c b/fs/jfs/jfs_xtree.c
new file mode 100644
index 00000000000000..3f485327298de6
--- /dev/null
+++ b/fs/jfs/jfs_xtree.c
@@ -0,0 +1,4458 @@
+/*
+ *   Copyright (C) International Business Machines Corp., 2000-2004
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+/*
+ *      jfs_xtree.c: extent allocation descriptor B+-tree manager
+ */
+
+#include <linux/fs.h>
+#include "jfs_incore.h"
+#include "jfs_filsys.h"
+#include "jfs_metapage.h"
+#include "jfs_dmap.h"
+#include "jfs_dinode.h"
+#include "jfs_superblock.h"
+#include "jfs_debug.h"
+
+/*
+ * xtree local flag
+ */
+#define XT_INSERT       0x00000001
+
+/*
+ *       xtree key/entry comparison: extent offset
+ *
+ * return:
+ *      -1: k < start of extent
+ *       0: start_of_extent <= k <= end_of_extent
+ *       1: k > end_of_extent
+ */
+#define XT_CMP(CMP, K, X, OFFSET64)\
+{\
+        OFFSET64 = offsetXAD(X);\
+        (CMP) = ((K) >= OFFSET64 + lengthXAD(X)) ? 1 :\
+              ((K) < OFFSET64) ? -1 : 0;\
+}
+
+/* write a xad entry */
+#define XT_PUTENTRY(XAD, FLAG, OFF, LEN, ADDR)\
+{\
+        (XAD)->flag = (FLAG);\
+        XADoffset((XAD), (OFF));\
+        XADlength((XAD), (LEN));\
+        XADaddress((XAD), (ADDR));\
+}
+
+#define XT_PAGE(IP, MP) BT_PAGE(IP, MP, xtpage_t, i_xtroot)
+
+/* get page buffer for specified block address */
+/* ToDo: Replace this ugly macro with a function */
+#define XT_GETPAGE(IP, BN, MP, SIZE, P, RC)\
+{\
+	BT_GETPAGE(IP, BN, MP, xtpage_t, SIZE, P, RC, i_xtroot)\
+	if (!(RC))\
+	{\
+		if ((le16_to_cpu((P)->header.nextindex) < XTENTRYSTART) ||\
+		    (le16_to_cpu((P)->header.nextindex) > le16_to_cpu((P)->header.maxentry)) ||\
+		    (le16_to_cpu((P)->header.maxentry) > (((BN)==0)?XTROOTMAXSLOT:PSIZE>>L2XTSLOTSIZE)))\
+		{\
+			jfs_error((IP)->i_sb, "XT_GETPAGE: xtree page corrupt");\
+			BT_PUTPAGE(MP);\
+			MP = NULL;\
+			RC = -EIO;\
+		}\
+        }\
+}
+
+/* for consistency */
+#define XT_PUTPAGE(MP) BT_PUTPAGE(MP)
+
+#define XT_GETSEARCH(IP, LEAF, BN, MP,  P, INDEX) \
+	BT_GETSEARCH(IP, LEAF, BN, MP, xtpage_t, P, INDEX, i_xtroot)
+/* xtree entry parameter descriptor */
+struct xtsplit {
+	struct metapage *mp;
+	s16 index;
+	u8 flag;
+	s64 off;
+	s64 addr;
+	int len;
+	struct pxdlist *pxdlist;
+};
+
+
+/*
+ *      statistics
+ */
+#ifdef CONFIG_JFS_STATISTICS
+static struct {
+	uint search;
+	uint fastSearch;
+	uint split;
+} xtStat;
+#endif
+
+
+/*
+ * forward references
+ */
+static int xtSearch(struct inode *ip,
+		    s64 xoff, int *cmpp, struct btstack * btstack, int flag);
+
+static int xtSplitUp(tid_t tid,
+		     struct inode *ip,
+		     struct xtsplit * split, struct btstack * btstack);
+
+static int xtSplitPage(tid_t tid, struct inode *ip, struct xtsplit * split,
+		       struct metapage ** rmpp, s64 * rbnp);
+
+static int xtSplitRoot(tid_t tid, struct inode *ip,
+		       struct xtsplit * split, struct metapage ** rmpp);
+
+#ifdef _STILL_TO_PORT
+static int xtDeleteUp(tid_t tid, struct inode *ip, struct metapage * fmp,
+		      xtpage_t * fp, struct btstack * btstack);
+
+static int xtSearchNode(struct inode *ip,
+			xad_t * xad,
+			int *cmpp, struct btstack * btstack, int flag);
+
+static int xtRelink(tid_t tid, struct inode *ip, xtpage_t * fp);
+#endif				/*  _STILL_TO_PORT */
+
+/* External references */
+
+/*
+ *      debug control
+ */
+/*      #define _JFS_DEBUG_XTREE        1 */
+
+
+/*
+ *      xtLookup()
+ *
+ * function: map a single page into a physical extent;
+ */
+int xtLookup(struct inode *ip, s64 lstart,
+	     s64 llen, int *pflag, s64 * paddr, s32 * plen, int no_check)
+{
+	int rc = 0;
+	struct btstack btstack;
+	int cmp;
+	s64 bn;
+	struct metapage *mp;
+	xtpage_t *p;
+	int index;
+	xad_t *xad;
+	s64 size, xoff, xend;
+	int xlen;
+	s64 xaddr;
+
+	*plen = 0;
+
+	if (!no_check) {
+		/* is lookup offset beyond eof ? */
+		size = ((u64) ip->i_size + (JFS_SBI(ip->i_sb)->bsize - 1)) >>
+		    JFS_SBI(ip->i_sb)->l2bsize;
+		if (lstart >= size) {
+			jfs_err("xtLookup: lstart (0x%lx) >= size (0x%lx)",
+				(ulong) lstart, (ulong) size);
+			return 0;
+		}
+	}
+
+	/*
+	 * search for the xad entry covering the logical extent
+	 */
+//search:
+	if ((rc = xtSearch(ip, lstart, &cmp, &btstack, 0))) {
+		jfs_err("xtLookup: xtSearch returned %d", rc);
+		return rc;
+	}
+
+	/*
+	 *      compute the physical extent covering logical extent
+	 *
+	 * N.B. search may have failed (e.g., hole in sparse file),
+	 * and returned the index of the next entry.
+	 */
+	/* retrieve search result */
+	XT_GETSEARCH(ip, btstack.top, bn, mp, p, index);
+
+	/* is xad found covering start of logical extent ?
+	 * lstart is a page start address,
+	 * i.e., lstart cannot start in a hole;
+	 */
+	if (cmp)
+		goto out;
+
+	/*
+	 * lxd covered by xad
+	 */
+	xad = &p->xad[index];
+	xoff = offsetXAD(xad);
+	xlen = lengthXAD(xad);
+	xend = xoff + xlen;
+	xaddr = addressXAD(xad);
+
+	/* initialize new pxd */
+	*pflag = xad->flag;
+	*paddr = xaddr + (lstart - xoff);
+	/* a page must be fully covered by an xad */
+	*plen = min(xend - lstart, llen);
+
+      out:
+	XT_PUTPAGE(mp);
+
+	return rc;
+}
+
+
+/*
+ *      xtLookupList()
+ *
+ * function: map a single logical extent into a list of physical extent;
+ *
+ * parameter:
+ *      struct inode    *ip,
+ *      struct lxdlist  *lxdlist,       lxd list (in)
+ *      struct xadlist  *xadlist,       xad list (in/out)
+ *      int		flag)
+ *
+ * coverage of lxd by xad under assumption of
+ * . lxd's are ordered and disjoint.
+ * . xad's are ordered and disjoint.
+ *
+ * return:
+ *      0:      success
+ *
+ * note: a page being written (even a single byte) is backed fully,
+ *      except the last page which is only backed with blocks
+ *      required to cover the last byte;
+ *      the extent backing a page is fully contained within an xad;
+ */
+int xtLookupList(struct inode *ip, struct lxdlist * lxdlist,
+		 struct xadlist * xadlist, int flag)
+{
+	int rc = 0;
+	struct btstack btstack;
+	int cmp;
+	s64 bn;
+	struct metapage *mp;
+	xtpage_t *p;
+	int index;
+	lxd_t *lxd;
+	xad_t *xad, *pxd;
+	s64 size, lstart, lend, xstart, xend, pstart;
+	s64 llen, xlen, plen;
+	s64 xaddr, paddr;
+	int nlxd, npxd, maxnpxd;
+
+	npxd = xadlist->nxad = 0;
+	maxnpxd = xadlist->maxnxad;
+	pxd = xadlist->xad;
+
+	nlxd = lxdlist->nlxd;
+	lxd = lxdlist->lxd;
+
+	lstart = offsetLXD(lxd);
+	llen = lengthLXD(lxd);
+	lend = lstart + llen;
+
+	size = (ip->i_size + (JFS_SBI(ip->i_sb)->bsize - 1)) >>
+	    JFS_SBI(ip->i_sb)->l2bsize;
+
+	/*
+	 * search for the xad entry covering the logical extent
+	 */
+      search:
+	if (lstart >= size)
+		return 0;
+
+	if ((rc = xtSearch(ip, lstart, &cmp, &btstack, 0)))
+		return rc;
+
+	/*
+	 *      compute the physical extent covering logical extent
+	 *
+	 * N.B. search may have failed (e.g., hole in sparse file),
+	 * and returned the index of the next entry.
+	 */
+//map:
+	/* retrieve search result */
+	XT_GETSEARCH(ip, btstack.top, bn, mp, p, index);
+
+	/* is xad on the next sibling page ? */
+	if (index == le16_to_cpu(p->header.nextindex)) {
+		if (p->header.flag & BT_ROOT)
+			goto mapend;
+
+		if ((bn = le64_to_cpu(p->header.next)) == 0)
+			goto mapend;
+
+		XT_PUTPAGE(mp);
+
+		/* get next sibling page */
+		XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+		if (rc)
+			return rc;
+
+		index = XTENTRYSTART;
+	}
+
+	xad = &p->xad[index];
+
+	/*
+	 * is lxd covered by xad ?
+	 */
+      compare:
+	xstart = offsetXAD(xad);
+	xlen = lengthXAD(xad);
+	xend = xstart + xlen;
+	xaddr = addressXAD(xad);
+
+      compare1:
+	if (xstart < lstart)
+		goto compare2;
+
+	/* (lstart <= xstart) */
+
+	/* lxd is NOT covered by xad */
+	if (lend <= xstart) {
+		/*
+		 * get next lxd
+		 */
+		if (--nlxd == 0)
+			goto mapend;
+		lxd++;
+
+		lstart = offsetLXD(lxd);
+		llen = lengthLXD(lxd);
+		lend = lstart + llen;
+		if (lstart >= size)
+			goto mapend;
+
+		/* compare with the current xad  */
+		goto compare1;
+	}
+	/* lxd is covered by xad */
+	else {			/* (xstart < lend) */
+
+		/* initialize new pxd */
+		pstart = xstart;
+		plen = min(lend - xstart, xlen);
+		paddr = xaddr;
+
+		goto cover;
+	}
+
+	/* (xstart < lstart) */
+      compare2:
+	/* lxd is covered by xad */
+	if (lstart < xend) {
+		/* initialize new pxd */
+		pstart = lstart;
+		plen = min(xend - lstart, llen);
+		paddr = xaddr + (lstart - xstart);
+
+		goto cover;
+	}
+	/* lxd is NOT covered by xad */
+	else {			/* (xend <= lstart) */
+
+		/*
+		 * get next xad
+		 *
+		 * linear search next xad covering lxd on
+		 * the current xad page, and then tree search
+		 */
+		if (index == le16_to_cpu(p->header.nextindex) - 1) {
+			if (p->header.flag & BT_ROOT)
+				goto mapend;
+
+			XT_PUTPAGE(mp);
+			goto search;
+		} else {
+			index++;
+			xad++;
+
+			/* compare with new xad */
+			goto compare;
+		}
+	}
+
+	/*
+	 * lxd is covered by xad and a new pxd has been initialized
+	 * (lstart <= xstart < lend) or (xstart < lstart < xend)
+	 */
+      cover:
+	/* finalize pxd corresponding to current xad */
+	XT_PUTENTRY(pxd, xad->flag, pstart, plen, paddr);
+
+	if (++npxd >= maxnpxd)
+		goto mapend;
+	pxd++;
+
+	/*
+	 * lxd is fully covered by xad
+	 */
+	if (lend <= xend) {
+		/*
+		 * get next lxd
+		 */
+		if (--nlxd == 0)
+			goto mapend;
+		lxd++;
+
+		lstart = offsetLXD(lxd);
+		llen = lengthLXD(lxd);
+		lend = lstart + llen;
+		if (lstart >= size)
+			goto mapend;
+
+		/*
+		 * test for old xad covering new lxd
+		 * (old xstart < new lstart)
+		 */
+		goto compare2;
+	}
+	/*
+	 * lxd is partially covered by xad
+	 */
+	else {			/* (xend < lend)  */
+
+		/*
+		 * get next xad
+		 *
+		 * linear search next xad covering lxd on
+		 * the current xad page, and then next xad page search
+		 */
+		if (index == le16_to_cpu(p->header.nextindex) - 1) {
+			if (p->header.flag & BT_ROOT)
+				goto mapend;
+
+			if ((bn = le64_to_cpu(p->header.next)) == 0)
+				goto mapend;
+
+			XT_PUTPAGE(mp);
+
+			/* get next sibling page */
+			XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+			if (rc)
+				return rc;
+
+			index = XTENTRYSTART;
+			xad = &p->xad[index];
+		} else {
+			index++;
+			xad++;
+		}
+
+		/*
+		 * test for new xad covering old lxd
+		 * (old lstart < new xstart)
+		 */
+		goto compare;
+	}
+
+      mapend:
+	xadlist->nxad = npxd;
+
+//out:
+	XT_PUTPAGE(mp);
+
+	return rc;
+}
+
+
+/*
+ *      xtSearch()
+ *
+ * function:    search for the xad entry covering specified offset.
+ *
+ * parameters:
+ *      ip      - file object;
+ *      xoff    - extent offset;
+ *      cmpp    - comparison result:
+ *      btstack - traverse stack;
+ *      flag    - search process flag (XT_INSERT);
+ *
+ * returns:
+ *      btstack contains (bn, index) of search path traversed to the entry.
+ *      *cmpp is set to result of comparison with the entry returned.
+ *      the page containing the entry is pinned at exit.
+ */
+static int xtSearch(struct inode *ip, s64 xoff,	/* offset of extent */
+		    int *cmpp, struct btstack * btstack, int flag)
+{
+	struct jfs_inode_info *jfs_ip = JFS_IP(ip);
+	int rc = 0;
+	int cmp = 1;		/* init for empty page */
+	s64 bn;			/* block number */
+	struct metapage *mp;	/* page buffer */
+	xtpage_t *p;		/* page */
+	xad_t *xad;
+	int base, index, lim, btindex;
+	struct btframe *btsp;
+	int nsplit = 0;		/* number of pages to split */
+	s64 t64;
+
+	INCREMENT(xtStat.search);
+
+	BT_CLR(btstack);
+
+	btstack->nsplit = 0;
+
+	/*
+	 *      search down tree from root:
+	 *
+	 * between two consecutive entries of <Ki, Pi> and <Kj, Pj> of
+	 * internal page, child page Pi contains entry with k, Ki <= K < Kj.
+	 *
+	 * if entry with search key K is not found
+	 * internal page search find the entry with largest key Ki
+	 * less than K which point to the child page to search;
+	 * leaf page search find the entry with smallest key Kj
+	 * greater than K so that the returned index is the position of
+	 * the entry to be shifted right for insertion of new entry.
+	 * for empty tree, search key is greater than any key of the tree.
+	 *
+	 * by convention, root bn = 0.
+	 */
+	for (bn = 0;;) {
+		/* get/pin the page to search */
+		XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+		if (rc)
+			return rc;
+
+		/* try sequential access heuristics with the previous
+		 * access entry in target leaf page:
+		 * once search narrowed down into the target leaf,
+		 * key must either match an entry in the leaf or
+		 * key entry does not exist in the tree;
+		 */
+//fastSearch:
+		if ((jfs_ip->btorder & BT_SEQUENTIAL) &&
+		    (p->header.flag & BT_LEAF) &&
+		    (index = jfs_ip->btindex) <
+		    le16_to_cpu(p->header.nextindex)) {
+			xad = &p->xad[index];
+			t64 = offsetXAD(xad);
+			if (xoff < t64 + lengthXAD(xad)) {
+				if (xoff >= t64) {
+					*cmpp = 0;
+					goto out;
+				}
+
+				/* stop sequential access heuristics */
+				goto binarySearch;
+			} else {	/* (t64 + lengthXAD(xad)) <= xoff */
+
+				/* try next sequential entry */
+				index++;
+				if (index <
+				    le16_to_cpu(p->header.nextindex)) {
+					xad++;
+					t64 = offsetXAD(xad);
+					if (xoff < t64 + lengthXAD(xad)) {
+						if (xoff >= t64) {
+							*cmpp = 0;
+							goto out;
+						}
+
+						/* miss: key falls between
+						 * previous and this entry
+						 */
+						*cmpp = 1;
+						goto out;
+					}
+
+					/* (xoff >= t64 + lengthXAD(xad));
+					 * matching entry may be further out:
+					 * stop heuristic search
+					 */
+					/* stop sequential access heuristics */
+					goto binarySearch;
+				}
+
+				/* (index == p->header.nextindex);
+				 * miss: key entry does not exist in
+				 * the target leaf/tree
+				 */
+				*cmpp = 1;
+				goto out;
+			}
+
+			/*
+			 * if hit, return index of the entry found, and
+			 * if miss, where new entry with search key is
+			 * to be inserted;
+			 */
+		      out:
+			/* compute number of pages to split */
+			if (flag & XT_INSERT) {
+				if (p->header.nextindex ==	/* little-endian */
+				    p->header.maxentry)
+					nsplit++;
+				else
+					nsplit = 0;
+				btstack->nsplit = nsplit;
+			}
+
+			/* save search result */
+			btsp = btstack->top;
+			btsp->bn = bn;
+			btsp->index = index;
+			btsp->mp = mp;
+
+			/* update sequential access heuristics */
+			jfs_ip->btindex = index;
+
+			INCREMENT(xtStat.fastSearch);
+			return 0;
+		}
+
+		/* well, ... full search now */
+	      binarySearch:
+		lim = le16_to_cpu(p->header.nextindex) - XTENTRYSTART;
+
+		/*
+		 * binary search with search key K on the current page
+		 */
+		for (base = XTENTRYSTART; lim; lim >>= 1) {
+			index = base + (lim >> 1);
+
+			XT_CMP(cmp, xoff, &p->xad[index], t64);
+			if (cmp == 0) {
+				/*
+				 *      search hit
+				 */
+				/* search hit - leaf page:
+				 * return the entry found
+				 */
+				if (p->header.flag & BT_LEAF) {
+					*cmpp = cmp;
+
+					/* compute number of pages to split */
+					if (flag & XT_INSERT) {
+						if (p->header.nextindex ==
+						    p->header.maxentry)
+							nsplit++;
+						else
+							nsplit = 0;
+						btstack->nsplit = nsplit;
+					}
+
+					/* save search result */
+					btsp = btstack->top;
+					btsp->bn = bn;
+					btsp->index = index;
+					btsp->mp = mp;
+
+					/* init sequential access heuristics */
+					btindex = jfs_ip->btindex;
+					if (index == btindex ||
+					    index == btindex + 1)
+						jfs_ip->btorder = BT_SEQUENTIAL;
+					else
+						jfs_ip->btorder = BT_RANDOM;
+					jfs_ip->btindex = index;
+
+					return 0;
+				}
+
+				/* search hit - internal page:
+				 * descend/search its child page
+				 */
+				goto next;
+			}
+
+			if (cmp > 0) {
+				base = index + 1;
+				--lim;
+			}
+		}
+
+		/*
+		 *      search miss
+		 *
+		 * base is the smallest index with key (Kj) greater than
+		 * search key (K) and may be zero or maxentry index.
+		 */
+		/*
+		 * search miss - leaf page:
+		 *
+		 * return location of entry (base) where new entry with
+		 * search key K is to be inserted.
+		 */
+		if (p->header.flag & BT_LEAF) {
+			*cmpp = cmp;
+
+			/* compute number of pages to split */
+			if (flag & XT_INSERT) {
+				if (p->header.nextindex ==
+				    p->header.maxentry)
+					nsplit++;
+				else
+					nsplit = 0;
+				btstack->nsplit = nsplit;
+			}
+
+			/* save search result */
+			btsp = btstack->top;
+			btsp->bn = bn;
+			btsp->index = base;
+			btsp->mp = mp;
+
+			/* init sequential access heuristics */
+			btindex = jfs_ip->btindex;
+			if (base == btindex || base == btindex + 1)
+				jfs_ip->btorder = BT_SEQUENTIAL;
+			else
+				jfs_ip->btorder = BT_RANDOM;
+			jfs_ip->btindex = base;
+
+			return 0;
+		}
+
+		/*
+		 * search miss - non-leaf page:
+		 *
+		 * if base is non-zero, decrement base by one to get the parent
+		 * entry of the child page to search.
+		 */
+		index = base ? base - 1 : base;
+
+		/*
+		 * go down to child page
+		 */
+	      next:
+		/* update number of pages to split */
+		if (p->header.nextindex == p->header.maxentry)
+			nsplit++;
+		else
+			nsplit = 0;
+
+		/* push (bn, index) of the parent page/entry */
+		BT_PUSH(btstack, bn, index);
+
+		/* get the child page block number */
+		bn = addressXAD(&p->xad[index]);
+
+		/* unpin the parent page */
+		XT_PUTPAGE(mp);
+	}
+}
+
+/*
+ *      xtInsert()
+ *
+ * function:
+ *
+ * parameter:
+ *      tid     - transaction id;
+ *      ip      - file object;
+ *      xflag   - extent flag (XAD_NOTRECORDED):
+ *      xoff    - extent offset;
+ *      xlen    - extent length;
+ *      xaddrp  - extent address pointer (in/out):
+ *              if (*xaddrp)
+ *                      caller allocated data extent at *xaddrp;
+ *              else
+ *                      allocate data extent and return its xaddr;
+ *      flag    -
+ *
+ * return:
+ */
+int xtInsert(tid_t tid,		/* transaction id */
+	     struct inode *ip, int xflag, s64 xoff, s32 xlen, s64 * xaddrp,
+	     int flag)
+{
+	int rc = 0;
+	s64 xaddr, hint;
+	struct metapage *mp;	/* meta-page buffer */
+	xtpage_t *p;		/* base B+-tree index page */
+	s64 bn;
+	int index, nextindex;
+	struct btstack btstack;	/* traverse stack */
+	struct xtsplit split;	/* split information */
+	xad_t *xad;
+	int cmp;
+	struct tlock *tlck;
+	struct xtlock *xtlck;
+
+	jfs_info("xtInsert: nxoff:0x%lx nxlen:0x%x", (ulong) xoff, xlen);
+
+	/*
+	 *      search for the entry location at which to insert:
+	 *
+	 * xtFastSearch() and xtSearch() both returns (leaf page
+	 * pinned, index at which to insert).
+	 * n.b. xtSearch() may return index of maxentry of
+	 * the full page.
+	 */
+	if ((rc = xtSearch(ip, xoff, &cmp, &btstack, XT_INSERT)))
+		return rc;
+
+	/* retrieve search result */
+	XT_GETSEARCH(ip, btstack.top, bn, mp, p, index);
+
+	/* This test must follow XT_GETSEARCH since mp must be valid if
+	 * we branch to out: */
+	if (cmp == 0) {
+		rc = -EEXIST;
+		goto out;
+	}
+
+	/*
+	 * allocate data extent requested
+	 *
+	 * allocation hint: last xad
+	 */
+	if ((xaddr = *xaddrp) == 0) {
+		if (index > XTENTRYSTART) {
+			xad = &p->xad[index - 1];
+			hint = addressXAD(xad) + lengthXAD(xad) - 1;
+		} else
+			hint = 0;
+		if ((rc = dbAlloc(ip, hint, (s64) xlen, &xaddr)))
+			goto out;
+	}
+
+	/*
+	 *      insert entry for new extent
+	 */
+	xflag |= XAD_NEW;
+
+	/*
+	 *      if the leaf page is full, split the page and
+	 *      propagate up the router entry for the new page from split
+	 *
+	 * The xtSplitUp() will insert the entry and unpin the leaf page.
+	 */
+	nextindex = le16_to_cpu(p->header.nextindex);
+	if (nextindex == le16_to_cpu(p->header.maxentry)) {
+		split.mp = mp;
+		split.index = index;
+		split.flag = xflag;
+		split.off = xoff;
+		split.len = xlen;
+		split.addr = xaddr;
+		split.pxdlist = NULL;
+		if ((rc = xtSplitUp(tid, ip, &split, &btstack))) {
+			/* undo data extent allocation */
+			if (*xaddrp == 0)
+				dbFree(ip, xaddr, (s64) xlen);
+			return rc;
+		}
+
+		*xaddrp = xaddr;
+		return 0;
+	}
+
+	/*
+	 *      insert the new entry into the leaf page
+	 */
+	/*
+	 * acquire a transaction lock on the leaf page;
+	 *
+	 * action: xad insertion/extension;
+	 */
+	BT_MARK_DIRTY(mp, ip);
+
+	/* if insert into middle, shift right remaining entries. */
+	if (index < nextindex)
+		memmove(&p->xad[index + 1], &p->xad[index],
+			(nextindex - index) * sizeof(xad_t));
+
+	/* insert the new entry: mark the entry NEW */
+	xad = &p->xad[index];
+	XT_PUTENTRY(xad, xflag, xoff, xlen, xaddr);
+
+	/* advance next available entry index */
+	p->header.nextindex =
+	    cpu_to_le16(le16_to_cpu(p->header.nextindex) + 1);
+
+	/* Don't log it if there are no links to the file */
+	if (!test_cflag(COMMIT_Nolink, ip)) {
+		tlck = txLock(tid, ip, mp, tlckXTREE | tlckGROW);
+		xtlck = (struct xtlock *) & tlck->lock;
+		xtlck->lwm.offset =
+		    (xtlck->lwm.offset) ? min(index,
+					      (int)xtlck->lwm.offset) : index;
+		xtlck->lwm.length =
+		    le16_to_cpu(p->header.nextindex) - xtlck->lwm.offset;
+	}
+
+	*xaddrp = xaddr;
+
+      out:
+	/* unpin the leaf page */
+	XT_PUTPAGE(mp);
+
+	return rc;
+}
+
+
+/*
+ *      xtSplitUp()
+ *
+ * function:
+ *      split full pages as propagating insertion up the tree
+ *
+ * parameter:
+ *      tid     - transaction id;
+ *      ip      - file object;
+ *      split   - entry parameter descriptor;
+ *      btstack - traverse stack from xtSearch()
+ *
+ * return:
+ */
+static int
+xtSplitUp(tid_t tid,
+	  struct inode *ip, struct xtsplit * split, struct btstack * btstack)
+{
+	int rc = 0;
+	struct metapage *smp;
+	xtpage_t *sp;		/* split page */
+	struct metapage *rmp;
+	s64 rbn;		/* new right page block number */
+	struct metapage *rcmp;
+	xtpage_t *rcp;		/* right child page */
+	s64 rcbn;		/* right child page block number */
+	int skip;		/* index of entry of insertion */
+	int nextindex;		/* next available entry index of p */
+	struct btframe *parent;	/* parent page entry on traverse stack */
+	xad_t *xad;
+	s64 xaddr;
+	int xlen;
+	int nsplit;		/* number of pages split */
+	struct pxdlist pxdlist;
+	pxd_t *pxd;
+	struct tlock *tlck;
+	struct xtlock *xtlck;
+
+	smp = split->mp;
+	sp = XT_PAGE(ip, smp);
+
+	/* is inode xtree root extension/inline EA area free ? */
+	if ((sp->header.flag & BT_ROOT) && (!S_ISDIR(ip->i_mode)) &&
+	    (le16_to_cpu(sp->header.maxentry) < XTROOTMAXSLOT) &&
+	    (JFS_IP(ip)->mode2 & INLINEEA)) {
+		sp->header.maxentry = cpu_to_le16(XTROOTMAXSLOT);
+		JFS_IP(ip)->mode2 &= ~INLINEEA;
+
+		BT_MARK_DIRTY(smp, ip);
+		/*
+		 * acquire a transaction lock on the leaf page;
+		 *
+		 * action: xad insertion/extension;
+		 */
+
+		/* if insert into middle, shift right remaining entries. */
+		skip = split->index;
+		nextindex = le16_to_cpu(sp->header.nextindex);
+		if (skip < nextindex)
+			memmove(&sp->xad[skip + 1], &sp->xad[skip],
+				(nextindex - skip) * sizeof(xad_t));
+
+		/* insert the new entry: mark the entry NEW */
+		xad = &sp->xad[skip];
+		XT_PUTENTRY(xad, split->flag, split->off, split->len,
+			    split->addr);
+
+		/* advance next available entry index */
+		sp->header.nextindex =
+		    cpu_to_le16(le16_to_cpu(sp->header.nextindex) + 1);
+
+		/* Don't log it if there are no links to the file */
+		if (!test_cflag(COMMIT_Nolink, ip)) {
+			tlck = txLock(tid, ip, smp, tlckXTREE | tlckGROW);
+			xtlck = (struct xtlock *) & tlck->lock;
+			xtlck->lwm.offset = (xtlck->lwm.offset) ?
+			    min(skip, (int)xtlck->lwm.offset) : skip;
+			xtlck->lwm.length =
+			    le16_to_cpu(sp->header.nextindex) -
+			    xtlck->lwm.offset;
+		}
+
+		return 0;
+	}
+
+	/*
+	 * allocate new index blocks to cover index page split(s)
+	 *
+	 * allocation hint: ?
+	 */
+	if (split->pxdlist == NULL) {
+		nsplit = btstack->nsplit;
+		split->pxdlist = &pxdlist;
+		pxdlist.maxnpxd = pxdlist.npxd = 0;
+		pxd = &pxdlist.pxd[0];
+		xlen = JFS_SBI(ip->i_sb)->nbperpage;
+		for (; nsplit > 0; nsplit--, pxd++) {
+			if ((rc = dbAlloc(ip, (s64) 0, (s64) xlen, &xaddr))
+			    == 0) {
+				PXDaddress(pxd, xaddr);
+				PXDlength(pxd, xlen);
+
+				pxdlist.maxnpxd++;
+
+				continue;
+			}
+
+			/* undo allocation */
+
+			XT_PUTPAGE(smp);
+			return rc;
+		}
+	}
+
+	/*
+	 * Split leaf page <sp> into <sp> and a new right page <rp>.
+	 *
+	 * The split routines insert the new entry into the leaf page,
+	 * and acquire txLock as appropriate.
+	 * return <rp> pinned and its block number <rpbn>.
+	 */
+	rc = (sp->header.flag & BT_ROOT) ?
+	    xtSplitRoot(tid, ip, split, &rmp) :
+	    xtSplitPage(tid, ip, split, &rmp, &rbn);
+
+	XT_PUTPAGE(smp);
+
+	if (rc)
+		return -EIO;
+	/*
+	 * propagate up the router entry for the leaf page just split
+	 *
+	 * insert a router entry for the new page into the parent page,
+	 * propagate the insert/split up the tree by walking back the stack
+	 * of (bn of parent page, index of child page entry in parent page)
+	 * that were traversed during the search for the page that split.
+	 *
+	 * the propagation of insert/split up the tree stops if the root
+	 * splits or the page inserted into doesn't have to split to hold
+	 * the new entry.
+	 *
+	 * the parent entry for the split page remains the same, and
+	 * a new entry is inserted at its right with the first key and
+	 * block number of the new right page.
+	 *
+	 * There are a maximum of 3 pages pinned at any time:
+	 * right child, left parent and right parent (when the parent splits)
+	 * to keep the child page pinned while working on the parent.
+	 * make sure that all pins are released at exit.
+	 */
+	while ((parent = BT_POP(btstack)) != NULL) {
+		/* parent page specified by stack frame <parent> */
+
+		/* keep current child pages <rcp> pinned */
+		rcmp = rmp;
+		rcbn = rbn;
+		rcp = XT_PAGE(ip, rcmp);
+
+		/*
+		 * insert router entry in parent for new right child page <rp>
+		 */
+		/* get/pin the parent page <sp> */
+		XT_GETPAGE(ip, parent->bn, smp, PSIZE, sp, rc);
+		if (rc) {
+			XT_PUTPAGE(rcmp);
+			return rc;
+		}
+
+		/*
+		 * The new key entry goes ONE AFTER the index of parent entry,
+		 * because the split was to the right.
+		 */
+		skip = parent->index + 1;
+
+		/*
+		 * split or shift right remaining entries of the parent page
+		 */
+		nextindex = le16_to_cpu(sp->header.nextindex);
+		/*
+		 * parent page is full - split the parent page
+		 */
+		if (nextindex == le16_to_cpu(sp->header.maxentry)) {
+			/* init for parent page split */
+			split->mp = smp;
+			split->index = skip;	/* index at insert */
+			split->flag = XAD_NEW;
+			split->off = offsetXAD(&rcp->xad[XTENTRYSTART]);
+			split->len = JFS_SBI(ip->i_sb)->nbperpage;
+			split->addr = rcbn;
+
+			/* unpin previous right child page */
+			XT_PUTPAGE(rcmp);
+
+			/* The split routines insert the new entry,
+			 * and acquire txLock as appropriate.
+			 * return <rp> pinned and its block number <rpbn>.
+			 */
+			rc = (sp->header.flag & BT_ROOT) ?
+			    xtSplitRoot(tid, ip, split, &rmp) :
+			    xtSplitPage(tid, ip, split, &rmp, &rbn);
+			if (rc) {
+				XT_PUTPAGE(smp);
+				return rc;
+			}
+
+			XT_PUTPAGE(smp);
+			/* keep new child page <rp> pinned */
+		}
+		/*
+		 * parent page is not full - insert in parent page
+		 */
+		else {
+			/*
+			 * insert router entry in parent for the right child
+			 * page from the first entry of the right child page:
+			 */
+			/*
+			 * acquire a transaction lock on the parent page;
+			 *
+			 * action: router xad insertion;
+			 */
+			BT_MARK_DIRTY(smp, ip);
+
+			/*
+			 * if insert into middle, shift right remaining entries
+			 */
+			if (skip < nextindex)
+				memmove(&sp->xad[skip + 1], &sp->xad[skip],
+					(nextindex -
+					 skip) << L2XTSLOTSIZE);
+
+			/* insert the router entry */
+			xad = &sp->xad[skip];
+			XT_PUTENTRY(xad, XAD_NEW,
+				    offsetXAD(&rcp->xad[XTENTRYSTART]),
+				    JFS_SBI(ip->i_sb)->nbperpage, rcbn);
+
+			/* advance next available entry index. */
+			sp->header.nextindex =
+			    cpu_to_le16(le16_to_cpu(sp->header.nextindex) +
+					1);
+
+			/* Don't log it if there are no links to the file */
+			if (!test_cflag(COMMIT_Nolink, ip)) {
+				tlck = txLock(tid, ip, smp,
+					      tlckXTREE | tlckGROW);
+				xtlck = (struct xtlock *) & tlck->lock;
+				xtlck->lwm.offset = (xtlck->lwm.offset) ?
+				    min(skip, (int)xtlck->lwm.offset) : skip;
+				xtlck->lwm.length =
+				    le16_to_cpu(sp->header.nextindex) -
+				    xtlck->lwm.offset;
+			}
+
+			/* unpin parent page */
+			XT_PUTPAGE(smp);
+
+			/* exit propagate up */
+			break;
+		}
+	}
+
+	/* unpin current right page */
+	XT_PUTPAGE(rmp);
+
+	return 0;
+}
+
+
+/*
+ *      xtSplitPage()
+ *
+ * function:
+ *      split a full non-root page into
+ *      original/split/left page and new right page
+ *      i.e., the original/split page remains as left page.
+ *
+ * parameter:
+ *      int		tid,
+ *      struct inode    *ip,
+ *      struct xtsplit  *split,
+ *      struct metapage	**rmpp,
+ *      u64		*rbnp,
+ *
+ * return:
+ *      Pointer to page in which to insert or NULL on error.
+ */
+static int
+xtSplitPage(tid_t tid, struct inode *ip,
+	    struct xtsplit * split, struct metapage ** rmpp, s64 * rbnp)
+{
+	int rc = 0;
+	struct metapage *smp;
+	xtpage_t *sp;
+	struct metapage *rmp;
+	xtpage_t *rp;		/* new right page allocated */
+	s64 rbn;		/* new right page block number */
+	struct metapage *mp;
+	xtpage_t *p;
+	s64 nextbn;
+	int skip, maxentry, middle, righthalf, n;
+	xad_t *xad;
+	struct pxdlist *pxdlist;
+	pxd_t *pxd;
+	struct tlock *tlck;
+	struct xtlock *sxtlck = 0, *rxtlck = 0;
+
+	smp = split->mp;
+	sp = XT_PAGE(ip, smp);
+
+	INCREMENT(xtStat.split);
+
+	/*
+	 * allocate the new right page for the split
+	 */
+	pxdlist = split->pxdlist;
+	pxd = &pxdlist->pxd[pxdlist->npxd];
+	pxdlist->npxd++;
+	rbn = addressPXD(pxd);
+	rmp = get_metapage(ip, rbn, PSIZE, 1);
+	if (rmp == NULL)
+		return -EIO;
+
+	jfs_info("xtSplitPage: ip:0x%p smp:0x%p rmp:0x%p", ip, smp, rmp);
+
+	BT_MARK_DIRTY(rmp, ip);
+	/*
+	 * action: new page;
+	 */
+
+	rp = (xtpage_t *) rmp->data;
+	rp->header.self = *pxd;
+	rp->header.flag = sp->header.flag & BT_TYPE;
+	rp->header.maxentry = sp->header.maxentry;	/* little-endian */
+	rp->header.nextindex = cpu_to_le16(XTENTRYSTART);
+
+	BT_MARK_DIRTY(smp, ip);
+	/* Don't log it if there are no links to the file */
+	if (!test_cflag(COMMIT_Nolink, ip)) {
+		/*
+		 * acquire a transaction lock on the new right page;
+		 */
+		tlck = txLock(tid, ip, rmp, tlckXTREE | tlckNEW);
+		rxtlck = (struct xtlock *) & tlck->lock;
+		rxtlck->lwm.offset = XTENTRYSTART;
+		/*
+		 * acquire a transaction lock on the split page
+		 */
+		tlck = txLock(tid, ip, smp, tlckXTREE | tlckGROW);
+		sxtlck = (struct xtlock *) & tlck->lock;
+	}
+
+	/*
+	 * initialize/update sibling pointers of <sp> and <rp>
+	 */
+	nextbn = le64_to_cpu(sp->header.next);
+	rp->header.next = cpu_to_le64(nextbn);
+	rp->header.prev = cpu_to_le64(addressPXD(&sp->header.self));
+	sp->header.next = cpu_to_le64(rbn);
+
+	skip = split->index;
+
+	/*
+	 *      sequential append at tail (after last entry of last page)
+	 *
+	 * if splitting the last page on a level because of appending
+	 * a entry to it (skip is maxentry), it's likely that the access is
+	 * sequential. adding an empty page on the side of the level is less
+	 * work and can push the fill factor much higher than normal.
+	 * if we're wrong it's no big deal -  we will do the split the right
+	 * way next time.
+	 * (it may look like it's equally easy to do a similar hack for
+	 * reverse sorted data, that is, split the tree left, but it's not.
+	 * Be my guest.)
+	 */
+	if (nextbn == 0 && skip == le16_to_cpu(sp->header.maxentry)) {
+		/*
+		 * acquire a transaction lock on the new/right page;
+		 *
+		 * action: xad insertion;
+		 */
+		/* insert entry at the first entry of the new right page */
+		xad = &rp->xad[XTENTRYSTART];
+		XT_PUTENTRY(xad, split->flag, split->off, split->len,
+			    split->addr);
+
+		rp->header.nextindex = cpu_to_le16(XTENTRYSTART + 1);
+
+		if (!test_cflag(COMMIT_Nolink, ip)) {
+			/* rxtlck->lwm.offset = XTENTRYSTART; */
+			rxtlck->lwm.length = 1;
+		}
+
+		*rmpp = rmp;
+		*rbnp = rbn;
+
+		ip->i_blocks += LBLK2PBLK(ip->i_sb, lengthPXD(pxd));
+
+		jfs_info("xtSplitPage: sp:0x%p rp:0x%p", sp, rp);
+		return 0;
+	}
+
+	/*
+	 *      non-sequential insert (at possibly middle page)
+	 */
+
+	/*
+	 * update previous pointer of old next/right page of <sp>
+	 */
+	if (nextbn != 0) {
+		XT_GETPAGE(ip, nextbn, mp, PSIZE, p, rc);
+		if (rc) {
+			XT_PUTPAGE(rmp);
+			return rc;
+		}
+
+		BT_MARK_DIRTY(mp, ip);
+		/*
+		 * acquire a transaction lock on the next page;
+		 *
+		 * action:sibling pointer update;
+		 */
+		if (!test_cflag(COMMIT_Nolink, ip))
+			tlck = txLock(tid, ip, mp, tlckXTREE | tlckRELINK);
+
+		p->header.prev = cpu_to_le64(rbn);
+
+		/* sibling page may have been updated previously, or
+		 * it may be updated later;
+		 */
+
+		XT_PUTPAGE(mp);
+	}
+
+	/*
+	 * split the data between the split and new/right pages
+	 */
+	maxentry = le16_to_cpu(sp->header.maxentry);
+	middle = maxentry >> 1;
+	righthalf = maxentry - middle;
+
+	/*
+	 * skip index in old split/left page - insert into left page:
+	 */
+	if (skip <= middle) {
+		/* move right half of split page to the new right page */
+		memmove(&rp->xad[XTENTRYSTART], &sp->xad[middle],
+			righthalf << L2XTSLOTSIZE);
+
+		/* shift right tail of left half to make room for new entry */
+		if (skip < middle)
+			memmove(&sp->xad[skip + 1], &sp->xad[skip],
+				(middle - skip) << L2XTSLOTSIZE);
+
+		/* insert new entry */
+		xad = &sp->xad[skip];
+		XT_PUTENTRY(xad, split->flag, split->off, split->len,
+			    split->addr);
+
+		/* update page header */
+		sp->header.nextindex = cpu_to_le16(middle + 1);
+		if (!test_cflag(COMMIT_Nolink, ip)) {
+			sxtlck->lwm.offset = (sxtlck->lwm.offset) ?
+			    min(skip, (int)sxtlck->lwm.offset) : skip;
+		}
+
+		rp->header.nextindex =
+		    cpu_to_le16(XTENTRYSTART + righthalf);
+	}
+	/*
+	 * skip index in new right page - insert into right page:
+	 */
+	else {
+		/* move left head of right half to right page */
+		n = skip - middle;
+		memmove(&rp->xad[XTENTRYSTART], &sp->xad[middle],
+			n << L2XTSLOTSIZE);
+
+		/* insert new entry */
+		n += XTENTRYSTART;
+		xad = &rp->xad[n];
+		XT_PUTENTRY(xad, split->flag, split->off, split->len,
+			    split->addr);
+
+		/* move right tail of right half to right page */
+		if (skip < maxentry)
+			memmove(&rp->xad[n + 1], &sp->xad[skip],
+				(maxentry - skip) << L2XTSLOTSIZE);
+
+		/* update page header */
+		sp->header.nextindex = cpu_to_le16(middle);
+		if (!test_cflag(COMMIT_Nolink, ip)) {
+			sxtlck->lwm.offset = (sxtlck->lwm.offset) ?
+			    min(middle, (int)sxtlck->lwm.offset) : middle;
+		}
+
+		rp->header.nextindex = cpu_to_le16(XTENTRYSTART +
+						   righthalf + 1);
+	}
+
+	if (!test_cflag(COMMIT_Nolink, ip)) {
+		sxtlck->lwm.length = le16_to_cpu(sp->header.nextindex) -
+		    sxtlck->lwm.offset;
+
+		/* rxtlck->lwm.offset = XTENTRYSTART; */
+		rxtlck->lwm.length = le16_to_cpu(rp->header.nextindex) -
+		    XTENTRYSTART;
+	}
+
+	*rmpp = rmp;
+	*rbnp = rbn;
+
+	ip->i_blocks += LBLK2PBLK(ip->i_sb, lengthPXD(pxd));
+
+	jfs_info("xtSplitPage: sp:0x%p rp:0x%p", sp, rp);
+	return rc;
+}
+
+
+/*
+ *      xtSplitRoot()
+ *
+ * function:
+ *      split the full root page into
+ *      original/root/split page and new right page
+ *      i.e., root remains fixed in tree anchor (inode) and
+ *      the root is copied to a single new right child page
+ *      since root page << non-root page, and
+ *      the split root page contains a single entry for the
+ *      new right child page.
+ *
+ * parameter:
+ *      int		tid,
+ *      struct inode    *ip,
+ *      struct xtsplit  *split,
+ *      struct metapage	**rmpp)
+ *
+ * return:
+ *      Pointer to page in which to insert or NULL on error.
+ */
+static int
+xtSplitRoot(tid_t tid,
+	    struct inode *ip, struct xtsplit * split, struct metapage ** rmpp)
+{
+	xtpage_t *sp;
+	struct metapage *rmp;
+	xtpage_t *rp;
+	s64 rbn;
+	int skip, nextindex;
+	xad_t *xad;
+	pxd_t *pxd;
+	struct pxdlist *pxdlist;
+	struct tlock *tlck;
+	struct xtlock *xtlck;
+
+	sp = &JFS_IP(ip)->i_xtroot;
+
+	INCREMENT(xtStat.split);
+
+	/*
+	 *      allocate a single (right) child page
+	 */
+	pxdlist = split->pxdlist;
+	pxd = &pxdlist->pxd[pxdlist->npxd];
+	pxdlist->npxd++;
+	rbn = addressPXD(pxd);
+	rmp = get_metapage(ip, rbn, PSIZE, 1);
+	if (rmp == NULL)
+		return -EIO;
+
+	jfs_info("xtSplitRoot: ip:0x%p rmp:0x%p", ip, rmp);
+
+	/*
+	 * acquire a transaction lock on the new right page;
+	 *
+	 * action: new page;
+	 */
+	BT_MARK_DIRTY(rmp, ip);
+
+	rp = (xtpage_t *) rmp->data;
+	rp->header.flag =
+	    (sp->header.flag & BT_LEAF) ? BT_LEAF : BT_INTERNAL;
+	rp->header.self = *pxd;
+	rp->header.nextindex = cpu_to_le16(XTENTRYSTART);
+	rp->header.maxentry = cpu_to_le16(PSIZE >> L2XTSLOTSIZE);
+
+	/* initialize sibling pointers */
+	rp->header.next = 0;
+	rp->header.prev = 0;
+
+	/*
+	 * copy the in-line root page into new right page extent
+	 */
+	nextindex = le16_to_cpu(sp->header.maxentry);
+	memmove(&rp->xad[XTENTRYSTART], &sp->xad[XTENTRYSTART],
+		(nextindex - XTENTRYSTART) << L2XTSLOTSIZE);
+
+	/*
+	 * insert the new entry into the new right/child page
+	 * (skip index in the new right page will not change)
+	 */
+	skip = split->index;
+	/* if insert into middle, shift right remaining entries */
+	if (skip != nextindex)
+		memmove(&rp->xad[skip + 1], &rp->xad[skip],
+			(nextindex - skip) * sizeof(xad_t));
+
+	xad = &rp->xad[skip];
+	XT_PUTENTRY(xad, split->flag, split->off, split->len, split->addr);
+
+	/* update page header */
+	rp->header.nextindex = cpu_to_le16(nextindex + 1);
+
+	if (!test_cflag(COMMIT_Nolink, ip)) {
+		tlck = txLock(tid, ip, rmp, tlckXTREE | tlckNEW);
+		xtlck = (struct xtlock *) & tlck->lock;
+		xtlck->lwm.offset = XTENTRYSTART;
+		xtlck->lwm.length = le16_to_cpu(rp->header.nextindex) -
+		    XTENTRYSTART;
+	}
+
+	/*
+	 *      reset the root
+	 *
+	 * init root with the single entry for the new right page
+	 * set the 1st entry offset to 0, which force the left-most key
+	 * at any level of the tree to be less than any search key.
+	 */
+	/*
+	 * acquire a transaction lock on the root page (in-memory inode);
+	 *
+	 * action: root split;
+	 */
+	BT_MARK_DIRTY(split->mp, ip);
+
+	xad = &sp->xad[XTENTRYSTART];
+	XT_PUTENTRY(xad, XAD_NEW, 0, JFS_SBI(ip->i_sb)->nbperpage, rbn);
+
+	/* update page header of root */
+	sp->header.flag &= ~BT_LEAF;
+	sp->header.flag |= BT_INTERNAL;
+
+	sp->header.nextindex = cpu_to_le16(XTENTRYSTART + 1);
+
+	if (!test_cflag(COMMIT_Nolink, ip)) {
+		tlck = txLock(tid, ip, split->mp, tlckXTREE | tlckGROW);
+		xtlck = (struct xtlock *) & tlck->lock;
+		xtlck->lwm.offset = XTENTRYSTART;
+		xtlck->lwm.length = 1;
+	}
+
+	*rmpp = rmp;
+
+	ip->i_blocks += LBLK2PBLK(ip->i_sb, lengthPXD(pxd));
+
+	jfs_info("xtSplitRoot: sp:0x%p rp:0x%p", sp, rp);
+	return 0;
+}
+
+
+/*
+ *      xtExtend()
+ *
+ * function: extend in-place;
+ *
+ * note: existing extent may or may not have been committed.
+ * caller is responsible for pager buffer cache update, and
+ * working block allocation map update;
+ * update pmap: alloc whole extended extent;
+ */
+int xtExtend(tid_t tid,		/* transaction id */
+	     struct inode *ip, s64 xoff,	/* delta extent offset */
+	     s32 xlen,		/* delta extent length */
+	     int flag)
+{
+	int rc = 0;
+	int cmp;
+	struct metapage *mp;	/* meta-page buffer */
+	xtpage_t *p;		/* base B+-tree index page */
+	s64 bn;
+	int index, nextindex, len;
+	struct btstack btstack;	/* traverse stack */
+	struct xtsplit split;	/* split information */
+	xad_t *xad;
+	s64 xaddr;
+	struct tlock *tlck;
+	struct xtlock *xtlck = 0;
+
+	jfs_info("xtExtend: nxoff:0x%lx nxlen:0x%x", (ulong) xoff, xlen);
+
+	/* there must exist extent to be extended */
+	if ((rc = xtSearch(ip, xoff - 1, &cmp, &btstack, XT_INSERT)))
+		return rc;
+
+	/* retrieve search result */
+	XT_GETSEARCH(ip, btstack.top, bn, mp, p, index);
+
+	if (cmp != 0) {
+		XT_PUTPAGE(mp);
+		jfs_error(ip->i_sb, "xtExtend: xtSearch did not find extent");
+		return -EIO;
+	}
+
+	/* extension must be contiguous */
+	xad = &p->xad[index];
+	if ((offsetXAD(xad) + lengthXAD(xad)) != xoff) {
+		XT_PUTPAGE(mp);
+		jfs_error(ip->i_sb, "xtExtend: extension is not contiguous");
+		return -EIO;
+	}
+
+	/*
+	 * acquire a transaction lock on the leaf page;
+	 *
+	 * action: xad insertion/extension;
+	 */
+	BT_MARK_DIRTY(mp, ip);
+	if (!test_cflag(COMMIT_Nolink, ip)) {
+		tlck = txLock(tid, ip, mp, tlckXTREE | tlckGROW);
+		xtlck = (struct xtlock *) & tlck->lock;
+	}
+
+	/* extend will overflow extent ? */
+	xlen = lengthXAD(xad) + xlen;
+	if ((len = xlen - MAXXLEN) <= 0)
+		goto extendOld;
+
+	/*
+	 *      extent overflow: insert entry for new extent
+	 */
+//insertNew:
+	xoff = offsetXAD(xad) + MAXXLEN;
+	xaddr = addressXAD(xad) + MAXXLEN;
+	nextindex = le16_to_cpu(p->header.nextindex);
+
+	/*
+	 *      if the leaf page is full, insert the new entry and
+	 *      propagate up the router entry for the new page from split
+	 *
+	 * The xtSplitUp() will insert the entry and unpin the leaf page.
+	 */
+	if (nextindex == le16_to_cpu(p->header.maxentry)) {
+		/* xtSpliUp() unpins leaf pages */
+		split.mp = mp;
+		split.index = index + 1;
+		split.flag = XAD_NEW;
+		split.off = xoff;	/* split offset */
+		split.len = len;
+		split.addr = xaddr;
+		split.pxdlist = NULL;
+		if ((rc = xtSplitUp(tid, ip, &split, &btstack)))
+			return rc;
+
+		/* get back old page */
+		XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+		if (rc)
+			return rc;
+		/*
+		 * if leaf root has been split, original root has been
+		 * copied to new child page, i.e., original entry now
+		 * resides on the new child page;
+		 */
+		if (p->header.flag & BT_INTERNAL) {
+			ASSERT(p->header.nextindex ==
+			       cpu_to_le16(XTENTRYSTART + 1));
+			xad = &p->xad[XTENTRYSTART];
+			bn = addressXAD(xad);
+			XT_PUTPAGE(mp);
+
+			/* get new child page */
+			XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+			if (rc)
+				return rc;
+
+			BT_MARK_DIRTY(mp, ip);
+			if (!test_cflag(COMMIT_Nolink, ip)) {
+				tlck = txLock(tid, ip, mp, tlckXTREE|tlckGROW);
+				xtlck = (struct xtlock *) & tlck->lock;
+			}
+		}
+	}
+	/*
+	 *      insert the new entry into the leaf page
+	 */
+	else {
+		/* insert the new entry: mark the entry NEW */
+		xad = &p->xad[index + 1];
+		XT_PUTENTRY(xad, XAD_NEW, xoff, len, xaddr);
+
+		/* advance next available entry index */
+		p->header.nextindex =
+		    cpu_to_le16(le16_to_cpu(p->header.nextindex) + 1);
+	}
+
+	/* get back old entry */
+	xad = &p->xad[index];
+	xlen = MAXXLEN;
+
+	/*
+	 * extend old extent
+	 */
+      extendOld:
+	XADlength(xad, xlen);
+	if (!(xad->flag & XAD_NEW))
+		xad->flag |= XAD_EXTENDED;
+
+	if (!test_cflag(COMMIT_Nolink, ip)) {
+		xtlck->lwm.offset =
+		    (xtlck->lwm.offset) ? min(index,
+					      (int)xtlck->lwm.offset) : index;
+		xtlck->lwm.length =
+		    le16_to_cpu(p->header.nextindex) - xtlck->lwm.offset;
+	}
+
+	/* unpin the leaf page */
+	XT_PUTPAGE(mp);
+
+	return rc;
+}
+
+#ifdef _NOTYET
+/*
+ *      xtTailgate()
+ *
+ * function: split existing 'tail' extent
+ *      (split offset >= start offset of tail extent), and
+ *      relocate and extend the split tail half;
+ *
+ * note: existing extent may or may not have been committed.
+ * caller is responsible for pager buffer cache update, and
+ * working block allocation map update;
+ * update pmap: free old split tail extent, alloc new extent;
+ */
+int xtTailgate(tid_t tid,		/* transaction id */
+	       struct inode *ip, s64 xoff,	/* split/new extent offset */
+	       s32 xlen,	/* new extent length */
+	       s64 xaddr,	/* new extent address */
+	       int flag)
+{
+	int rc = 0;
+	int cmp;
+	struct metapage *mp;	/* meta-page buffer */
+	xtpage_t *p;		/* base B+-tree index page */
+	s64 bn;
+	int index, nextindex, llen, rlen;
+	struct btstack btstack;	/* traverse stack */
+	struct xtsplit split;	/* split information */
+	xad_t *xad;
+	struct tlock *tlck;
+	struct xtlock *xtlck = 0;
+	struct tlock *mtlck;
+	struct maplock *pxdlock;
+
+/*
+printf("xtTailgate: nxoff:0x%lx nxlen:0x%x nxaddr:0x%lx\n",
+        (ulong)xoff, xlen, (ulong)xaddr);
+*/
+
+	/* there must exist extent to be tailgated */
+	if ((rc = xtSearch(ip, xoff, &cmp, &btstack, XT_INSERT)))
+		return rc;
+
+	/* retrieve search result */
+	XT_GETSEARCH(ip, btstack.top, bn, mp, p, index);
+
+	if (cmp != 0) {
+		XT_PUTPAGE(mp);
+		jfs_error(ip->i_sb, "xtTailgate: couldn't find extent");
+		return -EIO;
+	}
+
+	/* entry found must be last entry */
+	nextindex = le16_to_cpu(p->header.nextindex);
+	if (index != nextindex - 1) {
+		XT_PUTPAGE(mp);
+		jfs_error(ip->i_sb,
+			  "xtTailgate: the entry found is not the last entry");
+		return -EIO;
+	}
+
+	BT_MARK_DIRTY(mp, ip);
+	/*
+	 * acquire tlock of the leaf page containing original entry
+	 */
+	if (!test_cflag(COMMIT_Nolink, ip)) {
+		tlck = txLock(tid, ip, mp, tlckXTREE | tlckGROW);
+		xtlck = (struct xtlock *) & tlck->lock;
+	}
+
+	/* completely replace extent ? */
+	xad = &p->xad[index];
+/*
+printf("xtTailgate: xoff:0x%lx xlen:0x%x xaddr:0x%lx\n",
+        (ulong)offsetXAD(xad), lengthXAD(xad), (ulong)addressXAD(xad));
+*/
+	if ((llen = xoff - offsetXAD(xad)) == 0)
+		goto updateOld;
+
+	/*
+	 *      partially replace extent: insert entry for new extent
+	 */
+//insertNew:
+	/*
+	 *      if the leaf page is full, insert the new entry and
+	 *      propagate up the router entry for the new page from split
+	 *
+	 * The xtSplitUp() will insert the entry and unpin the leaf page.
+	 */
+	if (nextindex == le16_to_cpu(p->header.maxentry)) {
+		/* xtSpliUp() unpins leaf pages */
+		split.mp = mp;
+		split.index = index + 1;
+		split.flag = XAD_NEW;
+		split.off = xoff;	/* split offset */
+		split.len = xlen;
+		split.addr = xaddr;
+		split.pxdlist = NULL;
+		if ((rc = xtSplitUp(tid, ip, &split, &btstack)))
+			return rc;
+
+		/* get back old page */
+		XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+		if (rc)
+			return rc;
+		/*
+		 * if leaf root has been split, original root has been
+		 * copied to new child page, i.e., original entry now
+		 * resides on the new child page;
+		 */
+		if (p->header.flag & BT_INTERNAL) {
+			ASSERT(p->header.nextindex ==
+			       cpu_to_le16(XTENTRYSTART + 1));
+			xad = &p->xad[XTENTRYSTART];
+			bn = addressXAD(xad);
+			XT_PUTPAGE(mp);
+
+			/* get new child page */
+			XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+			if (rc)
+				return rc;
+
+			BT_MARK_DIRTY(mp, ip);
+			if (!test_cflag(COMMIT_Nolink, ip)) {
+				tlck = txLock(tid, ip, mp, tlckXTREE|tlckGROW);
+				xtlck = (struct xtlock *) & tlck->lock;
+			}
+		}
+	}
+	/*
+	 *      insert the new entry into the leaf page
+	 */
+	else {
+		/* insert the new entry: mark the entry NEW */
+		xad = &p->xad[index + 1];
+		XT_PUTENTRY(xad, XAD_NEW, xoff, xlen, xaddr);
+
+		/* advance next available entry index */
+		p->header.nextindex =
+		    cpu_to_le16(le16_to_cpu(p->header.nextindex) + 1);
+	}
+
+	/* get back old XAD */
+	xad = &p->xad[index];
+
+	/*
+	 * truncate/relocate old extent at split offset
+	 */
+      updateOld:
+	/* update dmap for old/committed/truncated extent */
+	rlen = lengthXAD(xad) - llen;
+	if (!(xad->flag & XAD_NEW)) {
+		/* free from PWMAP at commit */
+		if (!test_cflag(COMMIT_Nolink, ip)) {
+			mtlck = txMaplock(tid, ip, tlckMAP);
+			pxdlock = (struct maplock *) & mtlck->lock;
+			pxdlock->flag = mlckFREEPXD;
+			PXDaddress(&pxdlock->pxd, addressXAD(xad) + llen);
+			PXDlength(&pxdlock->pxd, rlen);
+			pxdlock->index = 1;
+		}
+	} else
+		/* free from WMAP */
+		dbFree(ip, addressXAD(xad) + llen, (s64) rlen);
+
+	if (llen)
+		/* truncate */
+		XADlength(xad, llen);
+	else
+		/* replace */
+		XT_PUTENTRY(xad, XAD_NEW, xoff, xlen, xaddr);
+
+	if (!test_cflag(COMMIT_Nolink, ip)) {
+		xtlck->lwm.offset = (xtlck->lwm.offset) ?
+		    min(index, (int)xtlck->lwm.offset) : index;
+		xtlck->lwm.length = le16_to_cpu(p->header.nextindex) -
+		    xtlck->lwm.offset;
+	}
+
+	/* unpin the leaf page */
+	XT_PUTPAGE(mp);
+
+	return rc;
+}
+#endif /* _NOTYET */
+
+/*
+ *      xtUpdate()
+ *
+ * function: update XAD;
+ *
+ *      update extent for allocated_but_not_recorded or
+ *      compressed extent;
+ *
+ * parameter:
+ *      nxad    - new XAD;
+ *                logical extent of the specified XAD must be completely
+ *                contained by an existing XAD;
+ */
+int xtUpdate(tid_t tid, struct inode *ip, xad_t * nxad)
+{				/* new XAD */
+	int rc = 0;
+	int cmp;
+	struct metapage *mp;	/* meta-page buffer */
+	xtpage_t *p;		/* base B+-tree index page */
+	s64 bn;
+	int index0, index, newindex, nextindex;
+	struct btstack btstack;	/* traverse stack */
+	struct xtsplit split;	/* split information */
+	xad_t *xad, *lxad, *rxad;
+	int xflag;
+	s64 nxoff, xoff;
+	int nxlen, xlen, lxlen, rxlen;
+	s64 nxaddr, xaddr;
+	struct tlock *tlck;
+	struct xtlock *xtlck = 0;
+	int newpage = 0;
+
+	/* there must exist extent to be tailgated */
+	nxoff = offsetXAD(nxad);
+	nxlen = lengthXAD(nxad);
+	nxaddr = addressXAD(nxad);
+
+	if ((rc = xtSearch(ip, nxoff, &cmp, &btstack, XT_INSERT)))
+		return rc;
+
+	/* retrieve search result */
+	XT_GETSEARCH(ip, btstack.top, bn, mp, p, index0);
+
+	if (cmp != 0) {
+		XT_PUTPAGE(mp);
+		jfs_error(ip->i_sb, "xtUpdate: Could not find extent");
+		return -EIO;
+	}
+
+	BT_MARK_DIRTY(mp, ip);
+	/*
+	 * acquire tlock of the leaf page containing original entry
+	 */
+	if (!test_cflag(COMMIT_Nolink, ip)) {
+		tlck = txLock(tid, ip, mp, tlckXTREE | tlckGROW);
+		xtlck = (struct xtlock *) & tlck->lock;
+	}
+
+	xad = &p->xad[index0];
+	xflag = xad->flag;
+	xoff = offsetXAD(xad);
+	xlen = lengthXAD(xad);
+	xaddr = addressXAD(xad);
+
+	/* nXAD must be completely contained within XAD */
+	if ((xoff > nxoff) ||
+	    (nxoff + nxlen > xoff + xlen)) {
+		XT_PUTPAGE(mp);
+		jfs_error(ip->i_sb,
+			  "xtUpdate: nXAD in not completely contained within XAD");
+		return -EIO;
+	}
+
+	index = index0;
+	newindex = index + 1;
+	nextindex = le16_to_cpu(p->header.nextindex);
+
+#ifdef  _JFS_WIP_NOCOALESCE
+	if (xoff < nxoff)
+		goto updateRight;
+
+	/*
+	 * replace XAD with nXAD
+	 */
+      replace:			/* (nxoff == xoff) */
+	if (nxlen == xlen) {
+		/* replace XAD with nXAD:recorded */
+		*xad = *nxad;
+		xad->flag = xflag & ~XAD_NOTRECORDED;
+
+		goto out;
+	} else			/* (nxlen < xlen) */
+		goto updateLeft;
+#endif				/* _JFS_WIP_NOCOALESCE */
+
+/* #ifdef _JFS_WIP_COALESCE */
+	if (xoff < nxoff)
+		goto coalesceRight;
+
+	/*
+	 * coalesce with left XAD
+	 */
+//coalesceLeft: /* (xoff == nxoff) */
+	/* is XAD first entry of page ? */
+	if (index == XTENTRYSTART)
+		goto replace;
+
+	/* is nXAD logically and physically contiguous with lXAD ? */
+	lxad = &p->xad[index - 1];
+	lxlen = lengthXAD(lxad);
+	if (!(lxad->flag & XAD_NOTRECORDED) &&
+	    (nxoff == offsetXAD(lxad) + lxlen) &&
+	    (nxaddr == addressXAD(lxad) + lxlen) &&
+	    (lxlen + nxlen < MAXXLEN)) {
+		/* extend right lXAD */
+		index0 = index - 1;
+		XADlength(lxad, lxlen + nxlen);
+
+		/* If we just merged two extents together, need to make sure the
+		 * right extent gets logged.  If the left one is marked XAD_NEW,
+		 * then we know it will be logged.  Otherwise, mark as
+		 * XAD_EXTENDED
+		 */
+		if (!(lxad->flag & XAD_NEW))
+			lxad->flag |= XAD_EXTENDED;
+
+		if (xlen > nxlen) {
+			/* truncate XAD */
+			XADoffset(xad, xoff + nxlen);
+			XADlength(xad, xlen - nxlen);
+			XADaddress(xad, xaddr + nxlen);
+			goto out;
+		} else {	/* (xlen == nxlen) */
+
+			/* remove XAD */
+			if (index < nextindex - 1)
+				memmove(&p->xad[index], &p->xad[index + 1],
+					(nextindex - index -
+					 1) << L2XTSLOTSIZE);
+
+			p->header.nextindex =
+			    cpu_to_le16(le16_to_cpu(p->header.nextindex) -
+					1);
+
+			index = index0;
+			newindex = index + 1;
+			nextindex = le16_to_cpu(p->header.nextindex);
+			xoff = nxoff = offsetXAD(lxad);
+			xlen = nxlen = lxlen + nxlen;
+			xaddr = nxaddr = addressXAD(lxad);
+			goto coalesceRight;
+		}
+	}
+
+	/*
+	 * replace XAD with nXAD
+	 */
+      replace:			/* (nxoff == xoff) */
+	if (nxlen == xlen) {
+		/* replace XAD with nXAD:recorded */
+		*xad = *nxad;
+		xad->flag = xflag & ~XAD_NOTRECORDED;
+
+		goto coalesceRight;
+	} else			/* (nxlen < xlen) */
+		goto updateLeft;
+
+	/*
+	 * coalesce with right XAD
+	 */
+      coalesceRight:		/* (xoff <= nxoff) */
+	/* is XAD last entry of page ? */
+	if (newindex == nextindex) {
+		if (xoff == nxoff)
+			goto out;
+		goto updateRight;
+	}
+
+	/* is nXAD logically and physically contiguous with rXAD ? */
+	rxad = &p->xad[index + 1];
+	rxlen = lengthXAD(rxad);
+	if (!(rxad->flag & XAD_NOTRECORDED) &&
+	    (nxoff + nxlen == offsetXAD(rxad)) &&
+	    (nxaddr + nxlen == addressXAD(rxad)) &&
+	    (rxlen + nxlen < MAXXLEN)) {
+		/* extend left rXAD */
+		XADoffset(rxad, nxoff);
+		XADlength(rxad, rxlen + nxlen);
+		XADaddress(rxad, nxaddr);
+
+		/* If we just merged two extents together, need to make sure
+		 * the left extent gets logged.  If the right one is marked
+		 * XAD_NEW, then we know it will be logged.  Otherwise, mark as
+		 * XAD_EXTENDED
+		 */
+		if (!(rxad->flag & XAD_NEW))
+			rxad->flag |= XAD_EXTENDED;
+
+		if (xlen > nxlen)
+			/* truncate XAD */
+			XADlength(xad, xlen - nxlen);
+		else {		/* (xlen == nxlen) */
+
+			/* remove XAD */
+			memmove(&p->xad[index], &p->xad[index + 1],
+				(nextindex - index - 1) << L2XTSLOTSIZE);
+
+			p->header.nextindex =
+			    cpu_to_le16(le16_to_cpu(p->header.nextindex) -
+					1);
+		}
+
+		goto out;
+	} else if (xoff == nxoff)
+		goto out;
+
+	if (xoff >= nxoff) {
+		XT_PUTPAGE(mp);
+		jfs_error(ip->i_sb, "xtUpdate: xoff >= nxoff");
+		return -EIO;
+	}
+/* #endif _JFS_WIP_COALESCE */
+
+	/*
+	 * split XAD into (lXAD, nXAD):
+	 *
+	 *          |---nXAD--->
+	 * --|----------XAD----------|--
+	 *   |-lXAD-|
+	 */
+      updateRight:		/* (xoff < nxoff) */
+	/* truncate old XAD as lXAD:not_recorded */
+	xad = &p->xad[index];
+	XADlength(xad, nxoff - xoff);
+
+	/* insert nXAD:recorded */
+	if (nextindex == le16_to_cpu(p->header.maxentry)) {
+
+		/* xtSpliUp() unpins leaf pages */
+		split.mp = mp;
+		split.index = newindex;
+		split.flag = xflag & ~XAD_NOTRECORDED;
+		split.off = nxoff;
+		split.len = nxlen;
+		split.addr = nxaddr;
+		split.pxdlist = NULL;
+		if ((rc = xtSplitUp(tid, ip, &split, &btstack)))
+			return rc;
+
+		/* get back old page */
+		XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+		if (rc)
+			return rc;
+		/*
+		 * if leaf root has been split, original root has been
+		 * copied to new child page, i.e., original entry now
+		 * resides on the new child page;
+		 */
+		if (p->header.flag & BT_INTERNAL) {
+			ASSERT(p->header.nextindex ==
+			       cpu_to_le16(XTENTRYSTART + 1));
+			xad = &p->xad[XTENTRYSTART];
+			bn = addressXAD(xad);
+			XT_PUTPAGE(mp);
+
+			/* get new child page */
+			XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+			if (rc)
+				return rc;
+
+			BT_MARK_DIRTY(mp, ip);
+			if (!test_cflag(COMMIT_Nolink, ip)) {
+				tlck = txLock(tid, ip, mp, tlckXTREE|tlckGROW);
+				xtlck = (struct xtlock *) & tlck->lock;
+			}
+		} else {
+			/* is nXAD on new page ? */
+			if (newindex >
+			    (le16_to_cpu(p->header.maxentry) >> 1)) {
+				newindex =
+				    newindex -
+				    le16_to_cpu(p->header.nextindex) +
+				    XTENTRYSTART;
+				newpage = 1;
+			}
+		}
+	} else {
+		/* if insert into middle, shift right remaining entries */
+		if (newindex < nextindex)
+			memmove(&p->xad[newindex + 1], &p->xad[newindex],
+				(nextindex - newindex) << L2XTSLOTSIZE);
+
+		/* insert the entry */
+		xad = &p->xad[newindex];
+		*xad = *nxad;
+		xad->flag = xflag & ~XAD_NOTRECORDED;
+
+		/* advance next available entry index. */
+		p->header.nextindex =
+		    cpu_to_le16(le16_to_cpu(p->header.nextindex) + 1);
+	}
+
+	/*
+	 * does nXAD force 3-way split ?
+	 *
+	 *          |---nXAD--->|
+	 * --|----------XAD-------------|--
+	 *   |-lXAD-|           |-rXAD -|
+	 */
+	if (nxoff + nxlen == xoff + xlen)
+		goto out;
+
+	/* reorient nXAD as XAD for further split XAD into (nXAD, rXAD) */
+	if (newpage) {
+		/* close out old page */
+		if (!test_cflag(COMMIT_Nolink, ip)) {
+			xtlck->lwm.offset = (xtlck->lwm.offset) ?
+			    min(index0, (int)xtlck->lwm.offset) : index0;
+			xtlck->lwm.length =
+			    le16_to_cpu(p->header.nextindex) -
+			    xtlck->lwm.offset;
+		}
+
+		bn = le64_to_cpu(p->header.next);
+		XT_PUTPAGE(mp);
+
+		/* get new right page */
+		XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+		if (rc)
+			return rc;
+
+		BT_MARK_DIRTY(mp, ip);
+		if (!test_cflag(COMMIT_Nolink, ip)) {
+			tlck = txLock(tid, ip, mp, tlckXTREE | tlckGROW);
+			xtlck = (struct xtlock *) & tlck->lock;
+		}
+
+		index0 = index = newindex;
+	} else
+		index++;
+
+	newindex = index + 1;
+	nextindex = le16_to_cpu(p->header.nextindex);
+	xlen = xlen - (nxoff - xoff);
+	xoff = nxoff;
+	xaddr = nxaddr;
+
+	/* recompute split pages */
+	if (nextindex == le16_to_cpu(p->header.maxentry)) {
+		XT_PUTPAGE(mp);
+
+		if ((rc = xtSearch(ip, nxoff, &cmp, &btstack, XT_INSERT)))
+			return rc;
+
+		/* retrieve search result */
+		XT_GETSEARCH(ip, btstack.top, bn, mp, p, index0);
+
+		if (cmp != 0) {
+			XT_PUTPAGE(mp);
+			jfs_error(ip->i_sb, "xtUpdate: xtSearch failed");
+			return -EIO;
+		}
+
+		if (index0 != index) {
+			XT_PUTPAGE(mp);
+			jfs_error(ip->i_sb,
+				  "xtUpdate: unexpected value of index");
+			return -EIO;
+		}
+	}
+
+	/*
+	 * split XAD into (nXAD, rXAD)
+	 *
+	 *          ---nXAD---|
+	 * --|----------XAD----------|--
+	 *                    |-rXAD-|
+	 */
+      updateLeft:		/* (nxoff == xoff) && (nxlen < xlen) */
+	/* update old XAD with nXAD:recorded */
+	xad = &p->xad[index];
+	*xad = *nxad;
+	xad->flag = xflag & ~XAD_NOTRECORDED;
+
+	/* insert rXAD:not_recorded */
+	xoff = xoff + nxlen;
+	xlen = xlen - nxlen;
+	xaddr = xaddr + nxlen;
+	if (nextindex == le16_to_cpu(p->header.maxentry)) {
+/*
+printf("xtUpdate.updateLeft.split p:0x%p\n", p);
+*/
+		/* xtSpliUp() unpins leaf pages */
+		split.mp = mp;
+		split.index = newindex;
+		split.flag = xflag;
+		split.off = xoff;
+		split.len = xlen;
+		split.addr = xaddr;
+		split.pxdlist = NULL;
+		if ((rc = xtSplitUp(tid, ip, &split, &btstack)))
+			return rc;
+
+		/* get back old page */
+		XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+		if (rc)
+			return rc;
+
+		/*
+		 * if leaf root has been split, original root has been
+		 * copied to new child page, i.e., original entry now
+		 * resides on the new child page;
+		 */
+		if (p->header.flag & BT_INTERNAL) {
+			ASSERT(p->header.nextindex ==
+			       cpu_to_le16(XTENTRYSTART + 1));
+			xad = &p->xad[XTENTRYSTART];
+			bn = addressXAD(xad);
+			XT_PUTPAGE(mp);
+
+			/* get new child page */
+			XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+			if (rc)
+				return rc;
+
+			BT_MARK_DIRTY(mp, ip);
+			if (!test_cflag(COMMIT_Nolink, ip)) {
+				tlck = txLock(tid, ip, mp, tlckXTREE|tlckGROW);
+				xtlck = (struct xtlock *) & tlck->lock;
+			}
+		}
+	} else {
+		/* if insert into middle, shift right remaining entries */
+		if (newindex < nextindex)
+			memmove(&p->xad[newindex + 1], &p->xad[newindex],
+				(nextindex - newindex) << L2XTSLOTSIZE);
+
+		/* insert the entry */
+		xad = &p->xad[newindex];
+		XT_PUTENTRY(xad, xflag, xoff, xlen, xaddr);
+
+		/* advance next available entry index. */
+		p->header.nextindex =
+		    cpu_to_le16(le16_to_cpu(p->header.nextindex) + 1);
+	}
+
+      out:
+	if (!test_cflag(COMMIT_Nolink, ip)) {
+		xtlck->lwm.offset = (xtlck->lwm.offset) ?
+		    min(index0, (int)xtlck->lwm.offset) : index0;
+		xtlck->lwm.length = le16_to_cpu(p->header.nextindex) -
+		    xtlck->lwm.offset;
+	}
+
+	/* unpin the leaf page */
+	XT_PUTPAGE(mp);
+
+	return rc;
+}
+
+
+/*
+ *      xtAppend()
+ *
+ * function: grow in append mode from contiguous region specified ;
+ *
+ * parameter:
+ *      tid             - transaction id;
+ *      ip              - file object;
+ *      xflag           - extent flag:
+ *      xoff            - extent offset;
+ *      maxblocks       - max extent length;
+ *      xlen            - extent length (in/out);
+ *      xaddrp          - extent address pointer (in/out):
+ *      flag            -
+ *
+ * return:
+ */
+int xtAppend(tid_t tid,		/* transaction id */
+	     struct inode *ip, int xflag, s64 xoff, s32 maxblocks,	
+	     s32 * xlenp,	/* (in/out) */
+	     s64 * xaddrp,	/* (in/out) */
+	     int flag)
+{
+	int rc = 0;
+	struct metapage *mp;	/* meta-page buffer */
+	xtpage_t *p;		/* base B+-tree index page */
+	s64 bn, xaddr;
+	int index, nextindex;
+	struct btstack btstack;	/* traverse stack */
+	struct xtsplit split;	/* split information */
+	xad_t *xad;
+	int cmp;
+	struct tlock *tlck;
+	struct xtlock *xtlck;
+	int nsplit, nblocks, xlen;
+	struct pxdlist pxdlist;
+	pxd_t *pxd;
+
+	xaddr = *xaddrp;
+	xlen = *xlenp;
+	jfs_info("xtAppend: xoff:0x%lx maxblocks:%d xlen:%d xaddr:0x%lx",
+		 (ulong) xoff, maxblocks, xlen, (ulong) xaddr);
+
+	/*
+	 *      search for the entry location at which to insert:
+	 *
+	 * xtFastSearch() and xtSearch() both returns (leaf page
+	 * pinned, index at which to insert).
+	 * n.b. xtSearch() may return index of maxentry of
+	 * the full page.
+	 */
+	if ((rc = xtSearch(ip, xoff, &cmp, &btstack, XT_INSERT)))
+		return rc;
+
+	/* retrieve search result */
+	XT_GETSEARCH(ip, btstack.top, bn, mp, p, index);
+
+	if (cmp == 0) {
+		rc = -EEXIST;
+		goto out;
+	}
+//insert:
+	/*
+	 *      insert entry for new extent
+	 */
+	xflag |= XAD_NEW;
+
+	/*
+	 *      if the leaf page is full, split the page and
+	 *      propagate up the router entry for the new page from split
+	 *
+	 * The xtSplitUp() will insert the entry and unpin the leaf page.
+	 */
+	nextindex = le16_to_cpu(p->header.nextindex);
+	if (nextindex < le16_to_cpu(p->header.maxentry))
+		goto insertLeaf;
+
+	/*
+	 * allocate new index blocks to cover index page split(s)
+	 */
+	nsplit = btstack.nsplit;
+	split.pxdlist = &pxdlist;
+	pxdlist.maxnpxd = pxdlist.npxd = 0;
+	pxd = &pxdlist.pxd[0];
+	nblocks = JFS_SBI(ip->i_sb)->nbperpage;
+	for (; nsplit > 0; nsplit--, pxd++, xaddr += nblocks, maxblocks -= nblocks) {	
+		if ((rc = dbAllocBottomUp(ip, xaddr, (s64) nblocks)) == 0) {
+			PXDaddress(pxd, xaddr);
+			PXDlength(pxd, nblocks);
+
+			pxdlist.maxnpxd++;
+
+			continue;
+		}
+
+		/* undo allocation */
+
+		goto out;
+	}
+
+	xlen = min(xlen, maxblocks);	
+
+	/*
+	 * allocate data extent requested
+	 */
+	if ((rc = dbAllocBottomUp(ip, xaddr, (s64) xlen)))
+		goto out;
+
+	split.mp = mp;
+	split.index = index;
+	split.flag = xflag;
+	split.off = xoff;
+	split.len = xlen;
+	split.addr = xaddr;
+	if ((rc = xtSplitUp(tid, ip, &split, &btstack))) {
+		/* undo data extent allocation */
+		dbFree(ip, *xaddrp, (s64) * xlenp);
+
+		return rc;
+	}
+
+	*xaddrp = xaddr;
+	*xlenp = xlen;
+	return 0;
+
+	/*
+	 *      insert the new entry into the leaf page
+	 */
+      insertLeaf:
+	/*
+	 * allocate data extent requested
+	 */
+	if ((rc = dbAllocBottomUp(ip, xaddr, (s64) xlen)))
+		goto out;
+
+	BT_MARK_DIRTY(mp, ip);
+	/*
+	 * acquire a transaction lock on the leaf page;
+	 *
+	 * action: xad insertion/extension;
+	 */
+	tlck = txLock(tid, ip, mp, tlckXTREE | tlckGROW);
+	xtlck = (struct xtlock *) & tlck->lock;
+
+	/* insert the new entry: mark the entry NEW */
+	xad = &p->xad[index];
+	XT_PUTENTRY(xad, xflag, xoff, xlen, xaddr);
+
+	/* advance next available entry index */
+	p->header.nextindex =
+	    cpu_to_le16(le16_to_cpu(p->header.nextindex) + 1);
+
+	xtlck->lwm.offset =
+	    (xtlck->lwm.offset) ? min(index,(int) xtlck->lwm.offset) : index;
+	xtlck->lwm.length = le16_to_cpu(p->header.nextindex) -
+	    xtlck->lwm.offset;
+
+	*xaddrp = xaddr;
+	*xlenp = xlen;
+
+      out:
+	/* unpin the leaf page */
+	XT_PUTPAGE(mp);
+
+	return rc;
+}
+#ifdef _STILL_TO_PORT
+
+/* - TBD for defragmentaion/reorganization -
+ *
+ *      xtDelete()
+ *
+ * function:
+ *      delete the entry with the specified key.
+ *
+ *      N.B.: whole extent of the entry is assumed to be deleted.
+ *
+ * parameter:
+ *
+ * return:
+ *       ENOENT: if the entry is not found.
+ *
+ * exception:
+ */
+int xtDelete(tid_t tid, struct inode *ip, s64 xoff, s32 xlen, int flag)
+{
+	int rc = 0;
+	struct btstack btstack;
+	int cmp;
+	s64 bn;
+	struct metapage *mp;
+	xtpage_t *p;
+	int index, nextindex;
+	struct tlock *tlck;
+	struct xtlock *xtlck;
+
+	/*
+	 * find the matching entry; xtSearch() pins the page
+	 */
+	if ((rc = xtSearch(ip, xoff, &cmp, &btstack, 0)))
+		return rc;
+
+	XT_GETSEARCH(ip, btstack.top, bn, mp, p, index);
+	if (cmp) {
+		/* unpin the leaf page */
+		XT_PUTPAGE(mp);
+		return -ENOENT;
+	}
+
+	/*
+	 * delete the entry from the leaf page
+	 */
+	nextindex = le16_to_cpu(p->header.nextindex);
+	p->header.nextindex =
+	    cpu_to_le16(le16_to_cpu(p->header.nextindex) - 1);
+
+	/*
+	 * if the leaf page bocome empty, free the page
+	 */
+	if (p->header.nextindex == cpu_to_le16(XTENTRYSTART))
+		return (xtDeleteUp(tid, ip, mp, p, &btstack));
+
+	BT_MARK_DIRTY(mp, ip);
+	/*
+	 * acquire a transaction lock on the leaf page;
+	 *
+	 * action:xad deletion;
+	 */
+	tlck = txLock(tid, ip, mp, tlckXTREE);
+	xtlck = (struct xtlock *) & tlck->lock;
+	xtlck->lwm.offset =
+	    (xtlck->lwm.offset) ? min(index, xtlck->lwm.offset) : index;
+
+	/* if delete from middle, shift left/compact the remaining entries */
+	if (index < nextindex - 1)
+		memmove(&p->xad[index], &p->xad[index + 1],
+			(nextindex - index - 1) * sizeof(xad_t));
+
+	XT_PUTPAGE(mp);
+
+	return 0;
+}
+
+
+/* - TBD for defragmentaion/reorganization -
+ *
+ *      xtDeleteUp()
+ *
+ * function:
+ *      free empty pages as propagating deletion up the tree
+ *
+ * parameter:
+ *
+ * return:
+ */
+static int
+xtDeleteUp(tid_t tid, struct inode *ip,
+	   struct metapage * fmp, xtpage_t * fp, struct btstack * btstack)
+{
+	int rc = 0;
+	struct metapage *mp;
+	xtpage_t *p;
+	int index, nextindex;
+	s64 xaddr;
+	int xlen;
+	struct btframe *parent;
+	struct tlock *tlck;
+	struct xtlock *xtlck;
+
+	/*
+	 * keep root leaf page which has become empty
+	 */
+	if (fp->header.flag & BT_ROOT) {
+		/* keep the root page */
+		fp->header.flag &= ~BT_INTERNAL;
+		fp->header.flag |= BT_LEAF;
+		fp->header.nextindex = cpu_to_le16(XTENTRYSTART);
+
+		/* XT_PUTPAGE(fmp); */
+
+		return 0;
+	}
+
+	/*
+	 * free non-root leaf page
+	 */
+	if ((rc = xtRelink(tid, ip, fp))) {
+		XT_PUTPAGE(fmp);
+		return rc;
+	}
+
+	xaddr = addressPXD(&fp->header.self);
+	xlen = lengthPXD(&fp->header.self);
+	/* free the page extent */
+	dbFree(ip, xaddr, (s64) xlen);
+
+	/* free the buffer page */
+	discard_metapage(fmp);
+
+	/*
+	 * propagate page deletion up the index tree
+	 *
+	 * If the delete from the parent page makes it empty,
+	 * continue all the way up the tree.
+	 * stop if the root page is reached (which is never deleted) or
+	 * if the entry deletion does not empty the page.
+	 */
+	while ((parent = BT_POP(btstack)) != NULL) {
+		/* get/pin the parent page <sp> */
+		XT_GETPAGE(ip, parent->bn, mp, PSIZE, p, rc);
+		if (rc)
+			return rc;
+
+		index = parent->index;
+
+		/* delete the entry for the freed child page from parent.
+		 */
+		nextindex = le16_to_cpu(p->header.nextindex);
+
+		/*
+		 * the parent has the single entry being deleted:
+		 * free the parent page which has become empty.
+		 */
+		if (nextindex == 1) {
+			if (p->header.flag & BT_ROOT) {
+				/* keep the root page */
+				p->header.flag &= ~BT_INTERNAL;
+				p->header.flag |= BT_LEAF;
+				p->header.nextindex =
+				    cpu_to_le16(XTENTRYSTART);
+
+				/* XT_PUTPAGE(mp); */
+
+				break;
+			} else {
+				/* free the parent page */
+				if ((rc = xtRelink(tid, ip, p)))
+					return rc;
+
+				xaddr = addressPXD(&p->header.self);
+				/* free the page extent */
+				dbFree(ip, xaddr,
+				       (s64) JFS_SBI(ip->i_sb)->nbperpage);
+
+				/* unpin/free the buffer page */
+				discard_metapage(mp);
+
+				/* propagate up */
+				continue;
+			}
+		}
+		/*
+		 * the parent has other entries remaining:
+		 * delete the router entry from the parent page.
+		 */
+		else {
+			BT_MARK_DIRTY(mp, ip);
+			/*
+			 * acquire a transaction lock on the leaf page;
+			 *
+			 * action:xad deletion;
+			 */
+			tlck = txLock(tid, ip, mp, tlckXTREE);
+			xtlck = (struct xtlock *) & tlck->lock;
+			xtlck->lwm.offset =
+			    (xtlck->lwm.offset) ? min(index,
+						      xtlck->lwm.
+						      offset) : index;
+
+			/* if delete from middle,
+			 * shift left/compact the remaining entries in the page
+			 */
+			if (index < nextindex - 1)
+				memmove(&p->xad[index], &p->xad[index + 1],
+					(nextindex - index -
+					 1) << L2XTSLOTSIZE);
+
+			p->header.nextindex =
+			    cpu_to_le16(le16_to_cpu(p->header.nextindex) -
+					1);
+			jfs_info("xtDeleteUp(entry): 0x%lx[%d]",
+				 (ulong) parent->bn, index);
+		}
+
+		/* unpin the parent page */
+		XT_PUTPAGE(mp);
+
+		/* exit propagation up */
+		break;
+	}
+
+	return 0;
+}
+
+
+/*
+ * NAME:        xtRelocate()
+ *
+ * FUNCTION:    relocate xtpage or data extent of regular file;
+ *              This function is mainly used by defragfs utility.
+ *
+ * NOTE:        This routine does not have the logic to handle
+ *              uncommitted allocated extent. The caller should call
+ *              txCommit() to commit all the allocation before call
+ *              this routine.
+ */
+int
+xtRelocate(tid_t tid, struct inode * ip, xad_t * oxad,	/* old XAD */
+	   s64 nxaddr,		/* new xaddr */
+	   int xtype)
+{				/* extent type: XTPAGE or DATAEXT */
+	int rc = 0;
+	struct tblock *tblk;
+	struct tlock *tlck;
+	struct xtlock *xtlck;
+	struct metapage *mp, *pmp, *lmp, *rmp;	/* meta-page buffer */
+	xtpage_t *p, *pp, *rp, *lp;	/* base B+-tree index page */
+	xad_t *xad;
+	pxd_t *pxd;
+	s64 xoff, xsize;
+	int xlen;
+	s64 oxaddr, sxaddr, dxaddr, nextbn, prevbn;
+	cbuf_t *cp;
+	s64 offset, nbytes, nbrd, pno;
+	int nb, npages, nblks;
+	s64 bn;
+	int cmp;
+	int index;
+	struct pxd_lock *pxdlock;
+	struct btstack btstack;	/* traverse stack */
+
+	xtype = xtype & EXTENT_TYPE;
+
+	xoff = offsetXAD(oxad);
+	oxaddr = addressXAD(oxad);
+	xlen = lengthXAD(oxad);
+
+	/* validate extent offset */
+	offset = xoff << JFS_SBI(ip->i_sb)->l2bsize;
+	if (offset >= ip->i_size)
+		return -ESTALE;	/* stale extent */
+
+	jfs_info("xtRelocate: xtype:%d xoff:0x%lx xlen:0x%x xaddr:0x%lx:0x%lx",
+		 xtype, (ulong) xoff, xlen, (ulong) oxaddr, (ulong) nxaddr);
+
+	/*
+	 *      1. get and validate the parent xtpage/xad entry
+	 *      covering the source extent to be relocated;
+	 */
+	if (xtype == DATAEXT) {
+		/* search in leaf entry */
+		rc = xtSearch(ip, xoff, &cmp, &btstack, 0);
+		if (rc)
+			return rc;
+
+		/* retrieve search result */
+		XT_GETSEARCH(ip, btstack.top, bn, pmp, pp, index);
+
+		if (cmp) {
+			XT_PUTPAGE(pmp);
+			return -ESTALE;
+		}
+
+		/* validate for exact match with a single entry */
+		xad = &pp->xad[index];
+		if (addressXAD(xad) != oxaddr || lengthXAD(xad) != xlen) {
+			XT_PUTPAGE(pmp);
+			return -ESTALE;
+		}
+	} else {		/* (xtype == XTPAGE) */
+
+		/* search in internal entry */
+		rc = xtSearchNode(ip, oxad, &cmp, &btstack, 0);
+		if (rc)
+			return rc;
+
+		/* retrieve search result */
+		XT_GETSEARCH(ip, btstack.top, bn, pmp, pp, index);
+
+		if (cmp) {
+			XT_PUTPAGE(pmp);
+			return -ESTALE;
+		}
+
+		/* xtSearchNode() validated for exact match with a single entry
+		 */
+		xad = &pp->xad[index];
+	}
+	jfs_info("xtRelocate: parent xad entry validated.");
+
+	/*
+	 *      2. relocate the extent
+	 */
+	if (xtype == DATAEXT) {
+		/* if the extent is allocated-but-not-recorded
+		 * there is no real data to be moved in this extent,
+		 */
+		if (xad->flag & XAD_NOTRECORDED)
+			goto out;
+		else
+			/* release xtpage for cmRead()/xtLookup() */
+			XT_PUTPAGE(pmp);
+
+		/*
+		 *      cmRelocate()
+		 *
+		 * copy target data pages to be relocated;
+		 *
+		 * data extent must start at page boundary and
+		 * multiple of page size (except the last data extent);
+		 * read in each page of the source data extent into cbuf,
+		 * update the cbuf extent descriptor of the page to be
+		 * homeward bound to new dst data extent
+		 * copy the data from the old extent to new extent.
+		 * copy is essential for compressed files to avoid problems
+		 * that can arise if there was a change in compression
+		 * algorithms.
+		 * it is a good strategy because it may disrupt cache
+		 * policy to keep the pages in memory afterwards.
+		 */
+		offset = xoff << JFS_SBI(ip->i_sb)->l2bsize;
+		assert((offset & CM_OFFSET) == 0);
+		nbytes = xlen << JFS_SBI(ip->i_sb)->l2bsize;
+		pno = offset >> CM_L2BSIZE;
+		npages = (nbytes + (CM_BSIZE - 1)) >> CM_L2BSIZE;
+/*
+                npages = ((offset + nbytes - 1) >> CM_L2BSIZE) -
+                         (offset >> CM_L2BSIZE) + 1;
+*/
+		sxaddr = oxaddr;
+		dxaddr = nxaddr;
+
+		/* process the request one cache buffer at a time */
+		for (nbrd = 0; nbrd < nbytes; nbrd += nb,
+		     offset += nb, pno++, npages--) {
+			/* compute page size */
+			nb = min(nbytes - nbrd, CM_BSIZE);
+
+			/* get the cache buffer of the page */
+			if (rc = cmRead(ip, offset, npages, &cp))
+				break;
+
+			assert(addressPXD(&cp->cm_pxd) == sxaddr);
+			assert(!cp->cm_modified);
+
+			/* bind buffer with the new extent address */
+			nblks = nb >> JFS_IP(ip->i_sb)->l2bsize;
+			cmSetXD(ip, cp, pno, dxaddr, nblks);
+
+			/* release the cbuf, mark it as modified */
+			cmPut(cp, TRUE);
+
+			dxaddr += nblks;
+			sxaddr += nblks;
+		}
+
+		/* get back parent page */
+		if ((rc = xtSearch(ip, xoff, &cmp, &btstack, 0)))
+			return rc;
+
+		XT_GETSEARCH(ip, btstack.top, bn, pmp, pp, index);
+		jfs_info("xtRelocate: target data extent relocated.");
+	} else {		/* (xtype  == XTPAGE) */
+
+		/*
+		 * read in the target xtpage from the source extent;
+		 */
+		XT_GETPAGE(ip, oxaddr, mp, PSIZE, p, rc);
+		if (rc) {
+			XT_PUTPAGE(pmp);
+			return rc;
+		}
+
+		/*
+		 * read in sibling pages if any to update sibling pointers;
+		 */
+		rmp = NULL;
+		if (p->header.next) {
+			nextbn = le64_to_cpu(p->header.next);
+			XT_GETPAGE(ip, nextbn, rmp, PSIZE, rp, rc);
+			if (rc) {
+				XT_PUTPAGE(pmp);
+				XT_PUTPAGE(mp);
+				return (rc);
+			}
+		}
+
+		lmp = NULL;
+		if (p->header.prev) {
+			prevbn = le64_to_cpu(p->header.prev);
+			XT_GETPAGE(ip, prevbn, lmp, PSIZE, lp, rc);
+			if (rc) {
+				XT_PUTPAGE(pmp);
+				XT_PUTPAGE(mp);
+				if (rmp)
+					XT_PUTPAGE(rmp);
+				return (rc);
+			}
+		}
+
+		/* at this point, all xtpages to be updated are in memory */
+
+		/*
+		 * update sibling pointers of sibling xtpages if any;
+		 */
+		if (lmp) {
+			BT_MARK_DIRTY(lmp, ip);
+			tlck =
+			    txLock(tid, ip, lmp, tlckXTREE | tlckRELINK);
+			lp->header.next = cpu_to_le64(nxaddr);
+			XT_PUTPAGE(lmp);
+		}
+
+		if (rmp) {
+			BT_MARK_DIRTY(rmp, ip);
+			tlck =
+			    txLock(tid, ip, rmp, tlckXTREE | tlckRELINK);
+			rp->header.prev = cpu_to_le64(nxaddr);
+			XT_PUTPAGE(rmp);
+		}
+
+		/*
+		 * update the target xtpage to be relocated
+		 *
+		 * update the self address of the target page
+		 * and write to destination extent;
+		 * redo image covers the whole xtpage since it is new page
+		 * to the destination extent;
+		 * update of bmap for the free of source extent
+		 * of the target xtpage itself:
+		 * update of bmap for the allocation of destination extent
+		 * of the target xtpage itself:
+		 * update of bmap for the extents covered by xad entries in
+		 * the target xtpage is not necessary since they are not
+		 * updated;
+		 * if not committed before this relocation,
+		 * target page may contain XAD_NEW entries which must
+		 * be scanned for bmap update (logredo() always
+		 * scan xtpage REDOPAGE image for bmap update);
+		 * if committed before this relocation (tlckRELOCATE),
+		 * scan may be skipped by commit() and logredo();
+		 */
+		BT_MARK_DIRTY(mp, ip);
+		/* tlckNEW init  xtlck->lwm.offset = XTENTRYSTART; */
+		tlck = txLock(tid, ip, mp, tlckXTREE | tlckNEW);
+		xtlck = (struct xtlock *) & tlck->lock;
+
+		/* update the self address in the xtpage header */
+		pxd = &p->header.self;
+		PXDaddress(pxd, nxaddr);
+
+		/* linelock for the after image of the whole page */
+		xtlck->lwm.length =
+		    le16_to_cpu(p->header.nextindex) - xtlck->lwm.offset;
+
+		/* update the buffer extent descriptor of target xtpage */
+		xsize = xlen << JFS_SBI(ip->i_sb)->l2bsize;
+		bmSetXD(mp, nxaddr, xsize);
+
+		/* unpin the target page to new homeward bound */
+		XT_PUTPAGE(mp);
+		jfs_info("xtRelocate: target xtpage relocated.");
+	}
+
+	/*
+	 *      3. acquire maplock for the source extent to be freed;
+	 *
+	 * acquire a maplock saving the src relocated extent address;
+	 * to free of the extent at commit time;
+	 */
+      out:
+	/* if DATAEXT relocation, write a LOG_UPDATEMAP record for
+	 * free PXD of the source data extent (logredo() will update
+	 * bmap for free of source data extent), and update bmap for
+	 * free of the source data extent;
+	 */
+	if (xtype == DATAEXT)
+		tlck = txMaplock(tid, ip, tlckMAP);
+	/* if XTPAGE relocation, write a LOG_NOREDOPAGE record
+	 * for the source xtpage (logredo() will init NoRedoPage
+	 * filter and will also update bmap for free of the source
+	 * xtpage), and update bmap for free of the source xtpage;
+	 * N.B. We use tlckMAP instead of tlkcXTREE because there
+	 *      is no buffer associated with this lock since the buffer
+	 *      has been redirected to the target location.
+	 */
+	else			/* (xtype  == XTPAGE) */
+		tlck = txMaplock(tid, ip, tlckMAP | tlckRELOCATE);
+
+	pxdlock = (struct pxd_lock *) & tlck->lock;
+	pxdlock->flag = mlckFREEPXD;
+	PXDaddress(&pxdlock->pxd, oxaddr);
+	PXDlength(&pxdlock->pxd, xlen);
+	pxdlock->index = 1;
+
+	/*
+	 *      4. update the parent xad entry for relocation;
+	 *
+	 * acquire tlck for the parent entry with XAD_NEW as entry
+	 * update which will write LOG_REDOPAGE and update bmap for
+	 * allocation of XAD_NEW destination extent;
+	 */
+	jfs_info("xtRelocate: update parent xad entry.");
+	BT_MARK_DIRTY(pmp, ip);
+	tlck = txLock(tid, ip, pmp, tlckXTREE | tlckGROW);
+	xtlck = (struct xtlock *) & tlck->lock;
+
+	/* update the XAD with the new destination extent; */
+	xad = &pp->xad[index];
+	xad->flag |= XAD_NEW;
+	XADaddress(xad, nxaddr);
+
+	xtlck->lwm.offset = min(index, xtlck->lwm.offset);
+	xtlck->lwm.length = le16_to_cpu(pp->header.nextindex) -
+	    xtlck->lwm.offset;
+
+	/* unpin the parent xtpage */
+	XT_PUTPAGE(pmp);
+
+	return rc;
+}
+
+
+/*
+ *      xtSearchNode()
+ *
+ * function:    search for the internal xad entry covering specified extent.
+ *              This function is mainly used by defragfs utility.
+ *
+ * parameters:
+ *      ip      - file object;
+ *      xad     - extent to find;
+ *      cmpp    - comparison result:
+ *      btstack - traverse stack;
+ *      flag    - search process flag;
+ *
+ * returns:
+ *      btstack contains (bn, index) of search path traversed to the entry.
+ *      *cmpp is set to result of comparison with the entry returned.
+ *      the page containing the entry is pinned at exit.
+ */
+static int xtSearchNode(struct inode *ip, xad_t * xad,	/* required XAD entry */
+			int *cmpp, struct btstack * btstack, int flag)
+{
+	int rc = 0;
+	s64 xoff, xaddr;
+	int xlen;
+	int cmp = 1;		/* init for empty page */
+	s64 bn;			/* block number */
+	struct metapage *mp;	/* meta-page buffer */
+	xtpage_t *p;		/* page */
+	int base, index, lim;
+	struct btframe *btsp;
+	s64 t64;
+
+	BT_CLR(btstack);
+
+	xoff = offsetXAD(xad);
+	xlen = lengthXAD(xad);
+	xaddr = addressXAD(xad);
+
+	/*
+	 *      search down tree from root:
+	 *
+	 * between two consecutive entries of <Ki, Pi> and <Kj, Pj> of
+	 * internal page, child page Pi contains entry with k, Ki <= K < Kj.
+	 *
+	 * if entry with search key K is not found
+	 * internal page search find the entry with largest key Ki
+	 * less than K which point to the child page to search;
+	 * leaf page search find the entry with smallest key Kj
+	 * greater than K so that the returned index is the position of
+	 * the entry to be shifted right for insertion of new entry.
+	 * for empty tree, search key is greater than any key of the tree.
+	 *
+	 * by convention, root bn = 0.
+	 */
+	for (bn = 0;;) {
+		/* get/pin the page to search */
+		XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+		if (rc)
+			return rc;
+		if (p->header.flag & BT_LEAF) {
+			XT_PUTPAGE(mp);
+			return -ESTALE;
+		}
+
+		lim = le16_to_cpu(p->header.nextindex) - XTENTRYSTART;
+
+		/*
+		 * binary search with search key K on the current page
+		 */
+		for (base = XTENTRYSTART; lim; lim >>= 1) {
+			index = base + (lim >> 1);
+
+			XT_CMP(cmp, xoff, &p->xad[index], t64);
+			if (cmp == 0) {
+				/*
+				 *      search hit
+				 *
+				 * verify for exact match;
+				 */
+				if (xaddr == addressXAD(&p->xad[index]) &&
+				    xoff == offsetXAD(&p->xad[index])) {
+					*cmpp = cmp;
+
+					/* save search result */
+					btsp = btstack->top;
+					btsp->bn = bn;
+					btsp->index = index;
+					btsp->mp = mp;
+
+					return 0;
+				}
+
+				/* descend/search its child page */
+				goto next;
+			}
+
+			if (cmp > 0) {
+				base = index + 1;
+				--lim;
+			}
+		}
+
+		/*
+		 *      search miss - non-leaf page:
+		 *
+		 * base is the smallest index with key (Kj) greater than
+		 * search key (K) and may be zero or maxentry index.
+		 * if base is non-zero, decrement base by one to get the parent
+		 * entry of the child page to search.
+		 */
+		index = base ? base - 1 : base;
+
+		/*
+		 * go down to child page
+		 */
+	      next:
+		/* get the child page block number */
+		bn = addressXAD(&p->xad[index]);
+
+		/* unpin the parent page */
+		XT_PUTPAGE(mp);
+	}
+}
+
+
+/*
+ *      xtRelink()
+ *
+ * function:
+ *      link around a freed page.
+ *
+ * Parameter:
+ *      int           tid,
+ *      struct inode    *ip,
+ *      xtpage_t        *p)
+ *
+ * returns:
+ */
+static int xtRelink(tid_t tid, struct inode *ip, xtpage_t * p)
+{
+	int rc = 0;
+	struct metapage *mp;
+	s64 nextbn, prevbn;
+	struct tlock *tlck;
+
+	nextbn = le64_to_cpu(p->header.next);
+	prevbn = le64_to_cpu(p->header.prev);
+
+	/* update prev pointer of the next page */
+	if (nextbn != 0) {
+		XT_GETPAGE(ip, nextbn, mp, PSIZE, p, rc);
+		if (rc)
+			return rc;
+
+		/*
+		 * acquire a transaction lock on the page;
+		 *
+		 * action: update prev pointer;
+		 */
+		BT_MARK_DIRTY(mp, ip);
+		tlck = txLock(tid, ip, mp, tlckXTREE | tlckRELINK);
+
+		/* the page may already have been tlock'd */
+
+		p->header.prev = cpu_to_le64(prevbn);
+
+		XT_PUTPAGE(mp);
+	}
+
+	/* update next pointer of the previous page */
+	if (prevbn != 0) {
+		XT_GETPAGE(ip, prevbn, mp, PSIZE, p, rc);
+		if (rc)
+			return rc;
+
+		/*
+		 * acquire a transaction lock on the page;
+		 *
+		 * action: update next pointer;
+		 */
+		BT_MARK_DIRTY(mp, ip);
+		tlck = txLock(tid, ip, mp, tlckXTREE | tlckRELINK);
+
+		/* the page may already have been tlock'd */
+
+		p->header.next = le64_to_cpu(nextbn);
+
+		XT_PUTPAGE(mp);
+	}
+
+	return 0;
+}
+#endif				/*  _STILL_TO_PORT */
+
+
+/*
+ *      xtInitRoot()
+ *
+ * initialize file root (inline in inode)
+ */
+void xtInitRoot(tid_t tid, struct inode *ip)
+{
+	xtpage_t *p;
+
+	/*
+	 * acquire a transaction lock on the root
+	 *
+	 * action:
+	 */
+	txLock(tid, ip, (struct metapage *) &JFS_IP(ip)->bxflag,
+		      tlckXTREE | tlckNEW);
+	p = &JFS_IP(ip)->i_xtroot;
+
+	p->header.flag = DXD_INDEX | BT_ROOT | BT_LEAF;
+	p->header.nextindex = cpu_to_le16(XTENTRYSTART);
+
+	if (S_ISDIR(ip->i_mode))
+		p->header.maxentry = cpu_to_le16(XTROOTINITSLOT_DIR);
+	else {
+		p->header.maxentry = cpu_to_le16(XTROOTINITSLOT);
+		ip->i_size = 0;
+	}
+
+
+	return;
+}
+
+
+/*
+ * We can run into a deadlock truncating a file with a large number of
+ * xtree pages (large fragmented file).  A robust fix would entail a
+ * reservation system where we would reserve a number of metadata pages
+ * and tlocks which we would be guaranteed without a deadlock.  Without
+ * this, a partial fix is to limit number of metadata pages we will lock
+ * in a single transaction.  Currently we will truncate the file so that
+ * no more than 50 leaf pages will be locked.  The caller of xtTruncate
+ * will be responsible for ensuring that the current transaction gets
+ * committed, and that subsequent transactions are created to truncate
+ * the file further if needed.
+ */
+#define MAX_TRUNCATE_LEAVES 50
+
+/*
+ *      xtTruncate()
+ *
+ * function:
+ *      traverse for truncation logging backward bottom up;
+ *      terminate at the last extent entry at the current subtree
+ *      root page covering new down size.
+ *      truncation may occur within the last extent entry.
+ *
+ * parameter:
+ *      int           tid,
+ *      struct inode    *ip,
+ *      s64           newsize,
+ *      int           type)   {PWMAP, PMAP, WMAP; DELETE, TRUNCATE}
+ *
+ * return:
+ *
+ * note:
+ *      PWMAP:
+ *       1. truncate (non-COMMIT_NOLINK file)
+ *          by jfs_truncate() or jfs_open(O_TRUNC):
+ *          xtree is updated;
+ *	 2. truncate index table of directory when last entry removed
+ *       map update via tlock at commit time;
+ *      PMAP:
+ *	 Call xtTruncate_pmap instead
+ *      WMAP:
+ *       1. remove (free zero link count) on last reference release
+ *          (pmap has been freed at commit zero link count);
+ *       2. truncate (COMMIT_NOLINK file, i.e., tmp file):
+ *          xtree is updated;
+ *       map update directly at truncation time;
+ *
+ *      if (DELETE)
+ *              no LOG_NOREDOPAGE is required (NOREDOFILE is sufficient);
+ *      else if (TRUNCATE)
+ *              must write LOG_NOREDOPAGE for deleted index page;
+ *
+ * pages may already have been tlocked by anonymous transactions
+ * during file growth (i.e., write) before truncation;
+ *
+ * except last truncated entry, deleted entries remains as is
+ * in the page (nextindex is updated) for other use
+ * (e.g., log/update allocation map): this avoid copying the page
+ * info but delay free of pages;
+ *
+ */
+s64 xtTruncate(tid_t tid, struct inode *ip, s64 newsize, int flag)
+{
+	int rc = 0;
+	s64 teof;
+	struct metapage *mp;
+	xtpage_t *p;
+	s64 bn;
+	int index, nextindex;
+	xad_t *xad;
+	s64 xoff, xaddr;
+	int xlen, len, freexlen;
+	struct btstack btstack;
+	struct btframe *parent;
+	struct tblock *tblk = 0;
+	struct tlock *tlck = 0;
+	struct xtlock *xtlck = 0;
+	struct xdlistlock xadlock;	/* maplock for COMMIT_WMAP */
+	struct pxd_lock *pxdlock;		/* maplock for COMMIT_WMAP */
+	s64 nfreed;
+	int freed, log;
+	int locked_leaves = 0;
+
+	/* save object truncation type */
+	if (tid) {
+		tblk = tid_to_tblock(tid);
+		tblk->xflag |= flag;
+	}
+
+	nfreed = 0;
+
+	flag &= COMMIT_MAP;
+	assert(flag != COMMIT_PMAP);
+
+	if (flag == COMMIT_PWMAP)
+		log = 1;
+	else {
+		log = 0;
+		xadlock.flag = mlckFREEXADLIST;
+		xadlock.index = 1;
+	}
+
+	/*
+	 * if the newsize is not an integral number of pages,
+	 * the file between newsize and next page boundary will
+	 * be cleared.
+	 * if truncating into a file hole, it will cause
+	 * a full block to be allocated for the logical block.
+	 */
+
+	/*
+	 * release page blocks of truncated region <teof, eof>
+	 *
+	 * free the data blocks from the leaf index blocks.
+	 * delete the parent index entries corresponding to
+	 * the freed child data/index blocks.
+	 * free the index blocks themselves which aren't needed
+	 * in new sized file.
+	 *
+	 * index blocks are updated only if the blocks are to be
+	 * retained in the new sized file.
+	 * if type is PMAP, the data and index pages are NOT
+	 * freed, and the data and index blocks are NOT freed
+	 * from  working map.
+	 * (this will allow continued access of data/index of
+	 * temporary file (zerolink count file truncated to zero-length)).
+	 */
+	teof = (newsize + (JFS_SBI(ip->i_sb)->bsize - 1)) >>
+	    JFS_SBI(ip->i_sb)->l2bsize;
+
+	/* clear stack */
+	BT_CLR(&btstack);
+
+	/*
+	 * start with root
+	 *
+	 * root resides in the inode
+	 */
+	bn = 0;
+
+	/*
+	 * first access of each page:
+	 */
+      getPage:
+	XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+	if (rc)
+		return rc;
+
+	/* process entries backward from last index */
+	index = le16_to_cpu(p->header.nextindex) - 1;
+
+	if (p->header.flag & BT_INTERNAL)
+		goto getChild;
+
+	/*
+	 *      leaf page
+	 */
+
+	/* Since this is the rightmost leaf, and we may have already freed
+	 * a page that was formerly to the right, let's make sure that the
+	 * next pointer is zero.
+	 */
+	if (p->header.next) {
+		if (log)
+			/*
+			 * Make sure this change to the header is logged.
+			 * If we really truncate this leaf, the flag
+			 * will be changed to tlckTRUNCATE
+			 */
+			tlck = txLock(tid, ip, mp, tlckXTREE|tlckGROW);
+		BT_MARK_DIRTY(mp, ip);
+		p->header.next = 0;
+	}
+
+	freed = 0;
+
+	/* does region covered by leaf page precede Teof ? */
+	xad = &p->xad[index];
+	xoff = offsetXAD(xad);
+	xlen = lengthXAD(xad);
+	if (teof >= xoff + xlen) {
+		XT_PUTPAGE(mp);
+		goto getParent;
+	}
+
+	/* (re)acquire tlock of the leaf page */
+	if (log) {
+		if (++locked_leaves > MAX_TRUNCATE_LEAVES) {
+			/*
+			 * We need to limit the size of the transaction
+			 * to avoid exhausting pagecache & tlocks
+			 */
+			XT_PUTPAGE(mp);
+			newsize = (xoff + xlen) << JFS_SBI(ip->i_sb)->l2bsize;
+			goto getParent;
+		}
+		tlck = txLock(tid, ip, mp, tlckXTREE);
+		tlck->type = tlckXTREE | tlckTRUNCATE;
+		xtlck = (struct xtlock *) & tlck->lock;
+		xtlck->hwm.offset = le16_to_cpu(p->header.nextindex) - 1;
+	}
+	BT_MARK_DIRTY(mp, ip);
+
+	/*
+	 * scan backward leaf page entries
+	 */
+	for (; index >= XTENTRYSTART; index--) {
+		xad = &p->xad[index];
+		xoff = offsetXAD(xad);
+		xlen = lengthXAD(xad);
+		xaddr = addressXAD(xad);
+
+		/*
+		 * The "data" for a directory is indexed by the block
+		 * device's address space.  This metadata must be invalidated
+		 * here
+		 */
+		if (S_ISDIR(ip->i_mode) && (teof == 0))
+			invalidate_xad_metapages(ip, *xad);
+		/*
+		 * entry beyond eof: continue scan of current page
+		 *          xad
+		 * ---|---=======------->
+		 *   eof
+		 */
+		if (teof < xoff) {
+			nfreed += xlen;
+			continue;
+		}
+
+		/*
+		 * (xoff <= teof): last entry to be deleted from page;
+		 * If other entries remain in page: keep and update the page.
+		 */
+
+		/*
+		 * eof == entry_start: delete the entry
+		 *           xad
+		 * -------|=======------->
+		 *       eof
+		 *
+		 */
+		if (teof == xoff) {
+			nfreed += xlen;
+
+			if (index == XTENTRYSTART)
+				break;
+
+			nextindex = index;
+		}
+		/*
+		 * eof within the entry: truncate the entry.
+		 *          xad
+		 * -------===|===------->
+		 *          eof
+		 */
+		else if (teof < xoff + xlen) {
+			/* update truncated entry */
+			len = teof - xoff;
+			freexlen = xlen - len;
+			XADlength(xad, len);
+
+			/* save pxd of truncated extent in tlck */
+			xaddr += len;
+			if (log) {	/* COMMIT_PWMAP */
+				xtlck->lwm.offset = (xtlck->lwm.offset) ?
+				    min(index, (int)xtlck->lwm.offset) : index;
+				xtlck->lwm.length = index + 1 -
+				    xtlck->lwm.offset;
+				xtlck->twm.offset = index;
+				pxdlock = (struct pxd_lock *) & xtlck->pxdlock;
+				pxdlock->flag = mlckFREEPXD;
+				PXDaddress(&pxdlock->pxd, xaddr);
+				PXDlength(&pxdlock->pxd, freexlen);
+			}
+			/* free truncated extent */
+			else {	/* COMMIT_WMAP */
+
+				pxdlock = (struct pxd_lock *) & xadlock;
+				pxdlock->flag = mlckFREEPXD;
+				PXDaddress(&pxdlock->pxd, xaddr);
+				PXDlength(&pxdlock->pxd, freexlen);
+				txFreeMap(ip, pxdlock, 0, COMMIT_WMAP);
+
+				/* reset map lock */
+				xadlock.flag = mlckFREEXADLIST;
+			}
+
+			/* current entry is new last entry; */
+			nextindex = index + 1;
+
+			nfreed += freexlen;
+		}
+		/*
+		 * eof beyond the entry:
+		 *          xad
+		 * -------=======---|--->
+		 *                 eof
+		 */
+		else {		/* (xoff + xlen < teof) */
+
+			nextindex = index + 1;
+		}
+
+		if (nextindex < le16_to_cpu(p->header.nextindex)) {
+			if (!log) {	/* COMMIT_WAMP */
+				xadlock.xdlist = &p->xad[nextindex];
+				xadlock.count =
+				    le16_to_cpu(p->header.nextindex) -
+				    nextindex;
+				txFreeMap(ip, (struct maplock *) & xadlock, 0,
+					  COMMIT_WMAP);
+			}
+			p->header.nextindex = cpu_to_le16(nextindex);
+		}
+
+		XT_PUTPAGE(mp);
+
+		/* assert(freed == 0); */
+		goto getParent;
+	}			/* end scan of leaf page entries */
+
+	freed = 1;
+
+	/*
+	 * leaf page become empty: free the page if type != PMAP
+	 */
+	if (log) {		/* COMMIT_PWMAP */
+		/* txCommit() with tlckFREE:
+		 * free data extents covered by leaf [XTENTRYSTART:hwm);
+		 * invalidate leaf if COMMIT_PWMAP;
+		 * if (TRUNCATE), will write LOG_NOREDOPAGE;
+		 */
+		tlck->type = tlckXTREE | tlckFREE;
+	} else {		/* COMMIT_WAMP */
+
+		/* free data extents covered by leaf */
+		xadlock.xdlist = &p->xad[XTENTRYSTART];
+		xadlock.count =
+		    le16_to_cpu(p->header.nextindex) - XTENTRYSTART;
+		txFreeMap(ip, (struct maplock *) & xadlock, 0, COMMIT_WMAP);
+	}
+
+	if (p->header.flag & BT_ROOT) {
+		p->header.flag &= ~BT_INTERNAL;
+		p->header.flag |= BT_LEAF;
+		p->header.nextindex = cpu_to_le16(XTENTRYSTART);
+
+		XT_PUTPAGE(mp);	/* debug */
+		goto out;
+	} else {
+		if (log) {	/* COMMIT_PWMAP */
+			/* page will be invalidated at tx completion
+			 */
+			XT_PUTPAGE(mp);
+		} else {	/* COMMIT_WMAP */
+
+			if (mp->lid)
+				lid_to_tlock(mp->lid)->flag |= tlckFREELOCK;
+
+			/* invalidate empty leaf page */
+			discard_metapage(mp);
+		}
+	}
+
+	/*
+	 * the leaf page become empty: delete the parent entry
+	 * for the leaf page if the parent page is to be kept
+	 * in the new sized file.
+	 */
+
+	/*
+	 * go back up to the parent page
+	 */
+      getParent:
+	/* pop/restore parent entry for the current child page */
+	if ((parent = BT_POP(&btstack)) == NULL)
+		/* current page must have been root */
+		goto out;
+
+	/* get back the parent page */
+	bn = parent->bn;
+	XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+	if (rc)
+		return rc;
+
+	index = parent->index;
+
+	/*
+	 * child page was not empty:
+	 */
+	if (freed == 0) {
+		/* has any entry deleted from parent ? */
+		if (index < le16_to_cpu(p->header.nextindex) - 1) {
+			/* (re)acquire tlock on the parent page */
+			if (log) {	/* COMMIT_PWMAP */
+				/* txCommit() with tlckTRUNCATE:
+				 * free child extents covered by parent [);
+				 */
+				tlck = txLock(tid, ip, mp, tlckXTREE);
+				xtlck = (struct xtlock *) & tlck->lock;
+				if (!(tlck->type & tlckTRUNCATE)) {
+					xtlck->hwm.offset =
+					    le16_to_cpu(p->header.
+							nextindex) - 1;
+					tlck->type =
+					    tlckXTREE | tlckTRUNCATE;
+				}
+			} else {	/* COMMIT_WMAP */
+
+				/* free child extents covered by parent */
+				xadlock.xdlist = &p->xad[index + 1];
+				xadlock.count =
+				    le16_to_cpu(p->header.nextindex) -
+				    index - 1;
+				txFreeMap(ip, (struct maplock *) & xadlock, 0,
+					  COMMIT_WMAP);
+			}
+			BT_MARK_DIRTY(mp, ip);
+
+			p->header.nextindex = cpu_to_le16(index + 1);
+		}
+		XT_PUTPAGE(mp);
+		goto getParent;
+	}
+
+	/*
+	 * child page was empty:
+	 */
+	nfreed += lengthXAD(&p->xad[index]);
+
+	/*
+	 * During working map update, child page's tlock must be handled
+	 * before parent's.  This is because the parent's tlock will cause
+	 * the child's disk space to be marked available in the wmap, so
+	 * it's important that the child page be released by that time.
+	 *
+	 * ToDo:  tlocks should be on doubly-linked list, so we can
+	 * quickly remove it and add it to the end.
+	 */
+
+	/*
+	 * Move parent page's tlock to the end of the tid's tlock list
+	 */
+	if (log && mp->lid && (tblk->last != mp->lid) &&
+	    lid_to_tlock(mp->lid)->tid) {
+		lid_t lid = mp->lid;
+		struct tlock *prev;
+
+		tlck = lid_to_tlock(lid);
+
+		if (tblk->next == lid)
+			tblk->next = tlck->next;
+		else {
+			for (prev = lid_to_tlock(tblk->next);
+			     prev->next != lid;
+			     prev = lid_to_tlock(prev->next)) {
+				assert(prev->next);
+			}
+			prev->next = tlck->next;
+		}
+		lid_to_tlock(tblk->last)->next = lid;
+		tlck->next = 0;
+		tblk->last = lid;
+	}
+
+	/*
+	 * parent page become empty: free the page
+	 */
+	if (index == XTENTRYSTART) {
+		if (log) {	/* COMMIT_PWMAP */
+			/* txCommit() with tlckFREE:
+			 * free child extents covered by parent;
+			 * invalidate parent if COMMIT_PWMAP;
+			 */
+			tlck = txLock(tid, ip, mp, tlckXTREE);
+			xtlck = (struct xtlock *) & tlck->lock;
+			xtlck->hwm.offset =
+			    le16_to_cpu(p->header.nextindex) - 1;
+			tlck->type = tlckXTREE | tlckFREE;
+		} else {	/* COMMIT_WMAP */
+
+			/* free child extents covered by parent */
+			xadlock.xdlist = &p->xad[XTENTRYSTART];
+			xadlock.count =
+			    le16_to_cpu(p->header.nextindex) -
+			    XTENTRYSTART;
+			txFreeMap(ip, (struct maplock *) & xadlock, 0,
+				  COMMIT_WMAP);
+		}
+		BT_MARK_DIRTY(mp, ip);
+
+		if (p->header.flag & BT_ROOT) {
+			p->header.flag &= ~BT_INTERNAL;
+			p->header.flag |= BT_LEAF;
+			p->header.nextindex = cpu_to_le16(XTENTRYSTART);
+			if (le16_to_cpu(p->header.maxentry) == XTROOTMAXSLOT) {
+				/*
+				 * Shrink root down to allow inline
+				 * EA (otherwise fsck complains)
+				 */
+				p->header.maxentry =
+				    cpu_to_le16(XTROOTINITSLOT);
+				JFS_IP(ip)->mode2 |= INLINEEA;
+			}
+
+			XT_PUTPAGE(mp);	/* debug */
+			goto out;
+		} else {
+			if (log) {	/* COMMIT_PWMAP */
+				/* page will be invalidated at tx completion
+				 */
+				XT_PUTPAGE(mp);
+			} else {	/* COMMIT_WMAP */
+
+				if (mp->lid)
+					lid_to_tlock(mp->lid)->flag |=
+						tlckFREELOCK;
+
+				/* invalidate parent page */
+				discard_metapage(mp);
+			}
+
+			/* parent has become empty and freed:
+			 * go back up to its parent page
+			 */
+			/* freed = 1; */
+			goto getParent;
+		}
+	}
+	/*
+	 * parent page still has entries for front region;
+	 */
+	else {
+		/* try truncate region covered by preceding entry
+		 * (process backward)
+		 */
+		index--;
+
+		/* go back down to the child page corresponding
+		 * to the entry
+		 */
+		goto getChild;
+	}
+
+	/*
+	 *      internal page: go down to child page of current entry
+	 */
+      getChild:
+	/* save current parent entry for the child page */
+	BT_PUSH(&btstack, bn, index);
+
+	/* get child page */
+	xad = &p->xad[index];
+	bn = addressXAD(xad);
+
+	/*
+	 * first access of each internal entry:
+	 */
+	/* release parent page */
+	XT_PUTPAGE(mp);
+
+	/* process the child page */
+	goto getPage;
+
+      out:
+	/*
+	 * update file resource stat
+	 */
+	/* set size
+	 */
+	if (S_ISDIR(ip->i_mode) && !newsize)
+		ip->i_size = 1;	/* fsck hates zero-length directories */
+	else
+		ip->i_size = newsize;
+
+	/* update nblocks to reflect freed blocks */
+	ip->i_blocks -= LBLK2PBLK(ip->i_sb, nfreed);
+
+	/*
+	 * free tlock of invalidated pages
+	 */
+	if (flag == COMMIT_WMAP)
+		txFreelock(ip);
+
+	return newsize;
+}
+
+
+/*
+ *      xtTruncate_pmap()
+ *
+ * function:
+ *	Perform truncate to zero lenghth for deleted file, leaving the
+ *	the xtree and working map untouched.  This allows the file to
+ *	be accessed via open file handles, while the delete of the file
+ *	is committed to disk.
+ *
+ * parameter:
+ *      tid_t		tid,
+ *      struct inode	*ip,
+ *      s64		committed_size)
+ *
+ * return: new committed size
+ *
+ * note:
+ *
+ *	To avoid deadlock by holding too many transaction locks, the
+ *	truncation may be broken up into multiple transactions.
+ *	The committed_size keeps track of part of the file has been
+ *	freed from the pmaps.
+ */
+s64 xtTruncate_pmap(tid_t tid, struct inode *ip, s64 committed_size)
+{
+	s64 bn;
+	struct btstack btstack;
+	int cmp;
+	int index;
+	int locked_leaves = 0;
+	struct metapage *mp;
+	xtpage_t *p;
+	struct btframe *parent;
+	int rc;
+	struct tblock *tblk;
+	struct tlock *tlck = 0;
+	xad_t *xad;
+	int xlen;
+	s64 xoff;
+	struct xtlock *xtlck = 0;
+
+	/* save object truncation type */
+	tblk = tid_to_tblock(tid);
+	tblk->xflag |= COMMIT_PMAP;
+
+	/* clear stack */
+	BT_CLR(&btstack);
+
+	if (committed_size) {
+		xoff = (committed_size >> JFS_SBI(ip->i_sb)->l2bsize) - 1;
+		rc = xtSearch(ip, xoff, &cmp, &btstack, 0);
+		if (rc)
+			return rc;
+
+		XT_GETSEARCH(ip, btstack.top, bn, mp, p, index);
+
+		if (cmp != 0) {
+			XT_PUTPAGE(mp);
+			jfs_error(ip->i_sb,
+				  "xtTruncate_pmap: did not find extent");
+			return -EIO;
+		}
+	} else {
+		/*
+		 * start with root
+		 *
+		 * root resides in the inode
+		 */
+		bn = 0;
+
+		/*
+		 * first access of each page:
+		 */
+      getPage:
+		XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+		if (rc)
+			return rc;
+
+		/* process entries backward from last index */
+		index = le16_to_cpu(p->header.nextindex) - 1;
+
+		if (p->header.flag & BT_INTERNAL)
+			goto getChild;
+	}
+
+	/*
+	 *      leaf page
+	 */
+
+	if (++locked_leaves > MAX_TRUNCATE_LEAVES) {
+		/*
+		 * We need to limit the size of the transaction
+		 * to avoid exhausting pagecache & tlocks
+		 */
+		xad = &p->xad[index];
+		xoff = offsetXAD(xad);
+		xlen = lengthXAD(xad);
+		XT_PUTPAGE(mp);
+		return  (xoff + xlen) << JFS_SBI(ip->i_sb)->l2bsize;
+	}
+	tlck = txLock(tid, ip, mp, tlckXTREE);
+	tlck->type = tlckXTREE | tlckFREE;
+	xtlck = (struct xtlock *) & tlck->lock;
+	xtlck->hwm.offset = index;
+
+
+	XT_PUTPAGE(mp);
+
+	/*
+	 * go back up to the parent page
+	 */
+      getParent:
+	/* pop/restore parent entry for the current child page */
+	if ((parent = BT_POP(&btstack)) == NULL)
+		/* current page must have been root */
+		goto out;
+
+	/* get back the parent page */
+	bn = parent->bn;
+	XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+	if (rc)
+		return rc;
+
+	index = parent->index;
+
+	/*
+	 * parent page become empty: free the page
+	 */
+	if (index == XTENTRYSTART) {
+		/* txCommit() with tlckFREE:
+		 * free child extents covered by parent;
+		 * invalidate parent if COMMIT_PWMAP;
+		 */
+		tlck = txLock(tid, ip, mp, tlckXTREE);
+		xtlck = (struct xtlock *) & tlck->lock;
+		xtlck->hwm.offset =
+		    le16_to_cpu(p->header.nextindex) - 1;
+		tlck->type = tlckXTREE | tlckFREE;
+
+		XT_PUTPAGE(mp);
+
+		if (p->header.flag & BT_ROOT) {
+
+			goto out;
+		} else {
+			goto getParent;
+		}
+	}
+	/*
+	 * parent page still has entries for front region;
+	 */
+	else
+		index--;
+	/*
+	 *      internal page: go down to child page of current entry
+	 */
+      getChild:
+	/* save current parent entry for the child page */
+	BT_PUSH(&btstack, bn, index);
+
+	/* get child page */
+	xad = &p->xad[index];
+	bn = addressXAD(xad);
+
+	/*
+	 * first access of each internal entry:
+	 */
+	/* release parent page */
+	XT_PUTPAGE(mp);
+
+	/* process the child page */
+	goto getPage;
+
+      out:
+
+	return 0;
+}
+
+
+#ifdef _JFS_DEBUG_XTREE
+/*
+ *      xtDisplayTree()
+ *
+ * function: traverse forward
+ */
+int xtDisplayTree(struct inode *ip)
+{
+	int rc = 0;
+	struct metapage *mp;
+	xtpage_t *p;
+	s64 bn, pbn;
+	int index, lastindex, v, h;
+	xad_t *xad;
+	struct btstack btstack;
+	struct btframe *btsp;
+	struct btframe *parent;
+
+	printk("display B+-tree.\n");
+
+	/* clear stack */
+	btsp = btstack.stack;
+
+	/*
+	 * start with root
+	 *
+	 * root resides in the inode
+	 */
+	bn = 0;
+	v = h = 0;
+
+	/*
+	 * first access of each page:
+	 */
+      getPage:
+	XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+	if (rc)
+		return rc;
+
+	/* process entries forward from first index */
+	index = XTENTRYSTART;
+	lastindex = le16_to_cpu(p->header.nextindex) - 1;
+
+	if (p->header.flag & BT_INTERNAL) {
+		/*
+		 * first access of each internal page
+		 */
+		goto getChild;
+	} else {		/* (p->header.flag & BT_LEAF) */
+
+		/*
+		 * first access of each leaf page
+		 */
+		printf("leaf page ");
+		xtDisplayPage(ip, bn, p);
+
+		/* unpin the leaf page */
+		XT_PUTPAGE(mp);
+	}
+
+	/*
+	 * go back up to the parent page
+	 */
+      getParent:
+	/* pop/restore parent entry for the current child page */
+	if ((parent = (btsp == btstack.stack ? NULL : --btsp)) == NULL)
+		/* current page must have been root */
+		return;
+
+	/*
+	 * parent page scan completed
+	 */
+	if ((index = parent->index) == (lastindex = parent->lastindex)) {
+		/* go back up to the parent page */
+		goto getParent;
+	}
+
+	/*
+	 * parent page has entries remaining
+	 */
+	/* get back the parent page */
+	bn = parent->bn;
+	/* v = parent->level; */
+	XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+	if (rc)
+		return rc;
+
+	/* get next parent entry */
+	index++;
+
+	/*
+	 * internal page: go down to child page of current entry
+	 */
+      getChild:
+	/* push/save current parent entry for the child page */
+	btsp->bn = pbn = bn;
+	btsp->index = index;
+	btsp->lastindex = lastindex;
+	/* btsp->level = v; */
+	/* btsp->node = h; */
+	++btsp;
+
+	/* get child page */
+	xad = &p->xad[index];
+	bn = addressXAD(xad);
+
+	/*
+	 * first access of each internal entry:
+	 */
+	/* release parent page */
+	XT_PUTPAGE(mp);
+
+	printk("traverse down 0x%lx[%d]->0x%lx\n", (ulong) pbn, index,
+	       (ulong) bn);
+	v++;
+	h = index;
+
+	/* process the child page */
+	goto getPage;
+}
+
+
+/*
+ *      xtDisplayPage()
+ *
+ * function: display page
+ */
+int xtDisplayPage(struct inode *ip, s64 bn, xtpage_t * p)
+{
+	int rc = 0;
+	xad_t *xad;
+	s64 xaddr, xoff;
+	int xlen, i, j;
+
+	/* display page control */
+	printf("bn:0x%lx flag:0x%x nextindex:%d\n",
+	       (ulong) bn, p->header.flag,
+	       le16_to_cpu(p->header.nextindex));
+
+	/* display entries */
+	xad = &p->xad[XTENTRYSTART];
+		for (i = XTENTRYSTART, j = 1; i < le16_to_cpu(p->header.nextindex);
+		     i++, xad++, j++) {
+			xoff = offsetXAD(xad);
+			xaddr = addressXAD(xad);
+			xlen = lengthXAD(xad);
+			printf("\t[%d] 0x%lx:0x%lx(0x%x)", i, (ulong) xoff,
+			       (ulong) xaddr, xlen);
+
+			if (j == 4) {
+				printf("\n");
+				j = 0;
+		}
+	}
+
+	printf("\n");
+}
+#endif				/* _JFS_DEBUG_XTREE */
+
+
+#ifdef _JFS_WIP
+/*
+ *      xtGather()
+ *
+ * function:
+ *      traverse for allocation acquiring tlock at commit time
+ *      (vs at the time of update) logging backward top down
+ *
+ * note:
+ *      problem - establishing that all new allocation have been
+ *      processed both for append and random write in sparse file
+ *      at the current entry at the current subtree root page
+ *
+ */
+int xtGather(btree_t *t)
+{
+	int rc = 0;
+	xtpage_t *p;
+	u64 bn;
+	int index;
+	btentry_t *e;
+	struct btstack btstack;
+	struct btsf *parent;
+
+	/* clear stack */
+	BT_CLR(&btstack);
+
+	/*
+	 * start with root
+	 *
+	 * root resides in the inode
+	 */
+	bn = 0;
+	XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+	if (rc)
+		return rc;
+
+	/* new root is NOT pointed by a new entry
+	   if (p->header.flag & NEW)
+	   allocate new page lock;
+	   write a NEWPAGE log;
+	 */
+
+      dopage:
+	/*
+	 * first access of each page:
+	 */
+	/* process entries backward from last index */
+	index = le16_to_cpu(p->header.nextindex) - 1;
+
+	if (p->header.flag & BT_LEAF) {
+		/*
+		 * first access of each leaf page
+		 */
+		/* process leaf page entries backward */
+		for (; index >= XTENTRYSTART; index--) {
+			e = &p->xad[index];
+			/*
+			 * if newpage, log NEWPAGE.
+			 *
+			 if (e->flag & XAD_NEW) {
+			 nfound =+ entry->length;
+			 update current page lock for the entry;
+			 newpage(entry);
+			 *
+			 * if moved, log move.
+			 *
+			 } else if (e->flag & XAD_MOVED) {
+			 reset flag;
+			 update current page lock for the entry;
+			 }
+			 */
+		}
+
+		/* unpin the leaf page */
+		XT_PUTPAGE(mp);
+
+		/*
+		 * go back up to the parent page
+		 */
+	      getParent:
+		/* restore parent entry for the current child page */
+		if ((parent = BT_POP(&btstack)) == NULL)
+			/* current page must have been root */
+			return 0;
+
+		if ((index = parent->index) == XTENTRYSTART) {
+			/*
+			 * parent page scan completed
+			 */
+			/* go back up to the parent page */
+			goto getParent;
+		} else {
+			/*
+			 * parent page has entries remaining
+			 */
+			/* get back the parent page */
+			bn = parent->bn;
+			XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+			if (rc)
+				return -EIO;
+
+			/* first subroot page which
+			 * covers all new allocated blocks
+			 * itself not new/modified.
+			 * (if modified from split of descendent,
+			 * go down path of split page)
+
+			 if (nfound == nnew &&
+			 !(p->header.flag & (NEW | MOD)))
+			 exit scan;
+			 */
+
+			/* process parent page entries backward */
+			index--;
+		}
+	} else {
+		/*
+		 * first access of each internal page
+		 */
+	}
+
+	/*
+	 * internal page: go down to child page of current entry
+	 */
+
+	/* save current parent entry for the child page */
+	BT_PUSH(&btstack, bn, index);
+
+	/* get current entry for the child page */
+	e = &p->xad[index];
+
+	/*
+	 * first access of each internal entry:
+	 */
+	/*
+	 * if new entry, log btree_tnewentry.
+	 *
+	 if (e->flag & XAD_NEW)
+	 update parent page lock for the entry;
+	 */
+
+	/* release parent page */
+	XT_PUTPAGE(mp);
+
+	/* get child page */
+	bn = e->bn;
+	XT_GETPAGE(ip, bn, mp, PSIZE, p, rc);
+	if (rc)
+		return rc;
+
+	/*
+	 * first access of each non-root page:
+	 */
+	/*
+	 * if new, log btree_newpage.
+	 *
+	 if (p->header.flag & NEW)
+	 allocate new page lock;
+	 write a NEWPAGE log (next, prev);
+	 */
+
+	/* process the child page */
+	goto dopage;
+
+      out:
+	return 0;
+}
+#endif				/* _JFS_WIP */
+
+
+#ifdef CONFIG_JFS_STATISTICS
+int jfs_xtstat_read(char *buffer, char **start, off_t offset, int length,
+		    int *eof, void *data)
+{
+	int len = 0;
+	off_t begin;
+
+	len += sprintf(buffer,
+		       "JFS Xtree statistics\n"
+		       "====================\n"
+		       "searches = %d\n"
+		       "fast searches = %d\n"
+		       "splits = %d\n",
+		       xtStat.search,
+		       xtStat.fastSearch,
+		       xtStat.split);
+
+	begin = offset;
+	*start = buffer + begin;
+	len -= begin;
+
+	if (len > length)
+		len = length;
+	else
+		*eof = 1;
+
+	if (len < 0)
+		len = 0;
+
+	return len;
+}
+#endif
diff --git a/fs/jfs/jfs_xtree.h b/fs/jfs/jfs_xtree.h
new file mode 100644
index 00000000000000..7ae64d5986ee9c
--- /dev/null
+++ b/fs/jfs/jfs_xtree.h
@@ -0,0 +1,140 @@
+/*
+ *   Copyright (c) International Business Machines Corp., 2000-2002
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef _H_JFS_XTREE
+#define _H_JFS_XTREE
+
+/*
+ *      jfs_xtree.h: extent allocation descriptor B+-tree manager
+ */
+
+#include "jfs_btree.h"
+
+
+/*
+ *      extent allocation descriptor (xad)
+ */
+typedef struct xad {
+	unsigned flag:8;	/* 1: flag */
+	unsigned rsvrd:16;	/* 2: reserved */
+	unsigned off1:8;	/* 1: offset in unit of fsblksize */
+	u32 off2;		/* 4: offset in unit of fsblksize */
+	unsigned len:24;	/* 3: length in unit of fsblksize */
+	unsigned addr1:8;	/* 1: address in unit of fsblksize */
+	u32 addr2;		/* 4: address in unit of fsblksize */
+} xad_t;			/* (16) */
+
+#define MAXXLEN         ((1 << 24) - 1)
+
+#define XTSLOTSIZE      16
+#define L2XTSLOTSIZE    4
+
+/* xad_t field construction */
+#define XADoffset(xad, offset64)\
+{\
+        (xad)->off1 = ((u64)offset64) >> 32;\
+        (xad)->off2 = __cpu_to_le32((offset64) & 0xffffffff);\
+}
+#define XADaddress(xad, address64)\
+{\
+        (xad)->addr1 = ((u64)address64) >> 32;\
+        (xad)->addr2 = __cpu_to_le32((address64) & 0xffffffff);\
+}
+#define XADlength(xad, length32)        (xad)->len = __cpu_to_le24(length32)
+
+/* xad_t field extraction */
+#define offsetXAD(xad)\
+        ( ((s64)((xad)->off1)) << 32 | __le32_to_cpu((xad)->off2))
+#define addressXAD(xad)\
+        ( ((s64)((xad)->addr1)) << 32 | __le32_to_cpu((xad)->addr2))
+#define lengthXAD(xad)  __le24_to_cpu((xad)->len)
+
+/* xad list */
+struct xadlist {
+	s16 maxnxad;
+	s16 nxad;
+	xad_t *xad;
+};
+
+/* xad_t flags */
+#define XAD_NEW         0x01	/* new */
+#define XAD_EXTENDED    0x02	/* extended */
+#define XAD_COMPRESSED  0x04	/* compressed with recorded length */
+#define XAD_NOTRECORDED 0x08	/* allocated but not recorded */
+#define XAD_COW         0x10	/* copy-on-write */
+
+
+/* possible values for maxentry */
+#define XTROOTINITSLOT_DIR  6
+#define XTROOTINITSLOT  10
+#define XTROOTMAXSLOT   18
+#define XTPAGEMAXSLOT   256
+#define XTENTRYSTART    2
+
+/*
+ *      xtree page:
+ */
+typedef union {
+	struct xtheader {
+		s64 next;	/* 8: */
+		s64 prev;	/* 8: */
+
+		u8 flag;	/* 1: */
+		u8 rsrvd1;	/* 1: */
+		s16 nextindex;	/* 2: next index = number of entries */
+		s16 maxentry;	/* 2: max number of entries */
+		s16 rsrvd2;	/* 2: */
+
+		pxd_t self;	/* 8: self */
+	} header;		/* (32) */
+
+	xad_t xad[XTROOTMAXSLOT];	/* 16 * maxentry: xad array */
+} xtpage_t;
+
+/*
+ *      external declaration
+ */
+extern int xtLookup(struct inode *ip, s64 lstart, s64 llen,
+		    int *pflag, s64 * paddr, int *plen, int flag);
+extern int xtLookupList(struct inode *ip, struct lxdlist * lxdlist,
+			struct xadlist * xadlist, int flag);
+extern void xtInitRoot(tid_t tid, struct inode *ip);
+extern int xtInsert(tid_t tid, struct inode *ip,
+		    int xflag, s64 xoff, int xlen, s64 * xaddrp, int flag);
+extern int xtExtend(tid_t tid, struct inode *ip, s64 xoff, int xlen,
+		    int flag);
+#ifdef _NOTYET
+extern int xtTailgate(tid_t tid, struct inode *ip,
+		      s64 xoff, int xlen, s64 xaddr, int flag);
+#endif
+extern int xtUpdate(tid_t tid, struct inode *ip, struct xad *nxad);
+extern int xtDelete(tid_t tid, struct inode *ip, s64 xoff, int xlen,
+		    int flag);
+extern s64 xtTruncate(tid_t tid, struct inode *ip, s64 newsize, int type);
+extern s64 xtTruncate_pmap(tid_t tid, struct inode *ip, s64 committed_size);
+extern int xtRelocate(tid_t tid, struct inode *ip,
+		      xad_t * oxad, s64 nxaddr, int xtype);
+extern int xtAppend(tid_t tid,
+		    struct inode *ip, int xflag, s64 xoff, int maxblocks,
+		    int *xlenp, s64 * xaddrp, int flag);
+
+#ifdef  _JFS_DEBUG_XTREE
+extern int xtDisplayTree(struct inode *ip);
+extern int xtDisplayPage(struct inode *ip, s64 bn, xtpage_t * p);
+#endif				/* _JFS_DEBUG_XTREE */
+
+#endif				/* !_H_JFS_XTREE */
diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
new file mode 100644
index 00000000000000..65327b730911ec
--- /dev/null
+++ b/fs/jfs/namei.c
@@ -0,0 +1,1424 @@
+/*
+ *   Copyright (C) International Business Machines Corp., 2000-2003
+ *   Portions Copyright (C) Christoph Hellwig, 2001-2002
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/fs.h>
+#include "jfs_incore.h"
+#include "jfs_superblock.h"
+#include "jfs_inode.h"
+#include "jfs_dinode.h"
+#include "jfs_dmap.h"
+#include "jfs_unicode.h"
+#include "jfs_metapage.h"
+#include "jfs_xattr.h"
+#include "jfs_debug.h"
+
+extern struct inode_operations jfs_file_inode_operations;
+extern struct inode_operations jfs_symlink_inode_operations;
+extern struct file_operations jfs_file_operations;
+extern struct address_space_operations jfs_aops;
+
+extern int jfs_fsync(struct file *, struct dentry *, int);
+extern void jfs_truncate_nolock(struct inode *, loff_t);
+
+/*
+ * forward references
+ */
+struct inode_operations jfs_dir_inode_operations;
+struct file_operations jfs_dir_operations;
+
+static s64 commitZeroLink(tid_t, struct inode *);
+
+/*
+ * NAME:	jfs_create(dip, dentry, mode)
+ *
+ * FUNCTION:	create a regular file in the parent directory <dip>
+ *		with name = <from dentry> and mode = <mode>
+ *
+ * PARAMETER:	dip 	- parent directory vnode
+ *		dentry	- dentry of new file
+ *		mode	- create mode (rwxrwxrwx).
+ *
+ * RETURN:	Errors from subroutines
+ *
+ */
+static int jfs_create(struct inode *dip, struct dentry *dentry, int mode)
+{
+	int rc = 0;
+	tid_t tid;		/* transaction id */
+	struct inode *ip = NULL;	/* child directory inode */
+	ino_t ino;
+	struct component_name dname;	/* child directory name */
+	struct btstack btstack;
+	struct inode *iplist[2];
+	struct tblock *tblk;
+
+	jfs_info("jfs_create: dip:0x%p name:%s", dip, dentry->d_name.name);
+
+	/*
+	 * search parent directory for entry/freespace
+	 * (dtSearch() returns parent directory page pinned)
+	 */
+	if ((rc = get_UCSname(&dname, dentry)))
+		goto out1;
+
+	/*
+	 * Either iAlloc() or txBegin() may block.  Deadlock can occur if we
+	 * block there while holding dtree page, so we allocate the inode &
+	 * begin the transaction before we search the directory.
+	 */
+	ip = ialloc(dip, mode);
+	if (ip == NULL) {
+		rc = -ENOSPC;
+		goto out2;
+	}
+
+	tid = txBegin(dip->i_sb, 0);
+
+	down(&JFS_IP(dip)->commit_sem);
+	down(&JFS_IP(ip)->commit_sem);
+
+	if ((rc = dtSearch(dip, &dname, &ino, &btstack, JFS_CREATE))) {
+		jfs_err("jfs_create: dtSearch returned %d", rc);
+		goto out3;
+	}
+
+	tblk = tid_to_tblock(tid);
+	tblk->xflag |= COMMIT_CREATE;
+	tblk->ip = ip;
+
+	iplist[0] = dip;
+	iplist[1] = ip;
+
+	/*
+	 * initialize the child XAD tree root in-line in inode
+	 */
+	xtInitRoot(tid, ip);
+
+	/*
+	 * create entry in parent directory for child directory
+	 * (dtInsert() releases parent directory page)
+	 */
+	ino = ip->i_ino;
+	if ((rc = dtInsert(tid, dip, &dname, &ino, &btstack))) {
+		jfs_err("jfs_create: dtInsert returned %d", rc);
+		if (rc == -EIO)
+			txAbort(tid, 1);	/* Marks Filesystem dirty */
+		else
+			txAbort(tid, 0);	/* Filesystem full */
+		goto out3;
+	}
+
+	ip->i_op = &jfs_file_inode_operations;
+	ip->i_fop = &jfs_file_operations;
+	ip->i_mapping->a_ops = &jfs_aops;
+
+	insert_inode_hash(ip);
+	mark_inode_dirty(ip);
+
+	dip->i_ctime = dip->i_mtime = CURRENT_TIME;
+
+	mark_inode_dirty(dip);
+
+	rc = txCommit(tid, 2, &iplist[0], 0);
+
+      out3:
+	txEnd(tid);
+	up(&JFS_IP(dip)->commit_sem);
+	up(&JFS_IP(ip)->commit_sem);
+	if (rc) {
+		ip->i_nlink = 0;
+		iput(ip);
+	} else
+		d_instantiate(dentry, ip);
+
+      out2:
+	free_UCSname(&dname);
+
+      out1:
+
+	jfs_info("jfs_create: rc:%d", rc);
+	return rc;
+}
+
+
+/*
+ * NAME:	jfs_mkdir(dip, dentry, mode)
+ *
+ * FUNCTION:	create a child directory in the parent directory <dip>
+ *		with name = <from dentry> and mode = <mode>
+ *
+ * PARAMETER:	dip 	- parent directory vnode
+ *		dentry	- dentry of child directory
+ *		mode	- create mode (rwxrwxrwx).
+ *
+ * RETURN:	Errors from subroutines
+ *
+ * note:
+ * EACCESS: user needs search+write permission on the parent directory
+ */
+static int jfs_mkdir(struct inode *dip, struct dentry *dentry, int mode)
+{
+	int rc = 0;
+	tid_t tid;		/* transaction id */
+	struct inode *ip = NULL;	/* child directory inode */
+	ino_t ino;
+	struct component_name dname;	/* child directory name */
+	struct btstack btstack;
+	struct inode *iplist[2];
+	struct tblock *tblk;
+
+	jfs_info("jfs_mkdir: dip:0x%p name:%s", dip, dentry->d_name.name);
+
+	/* link count overflow on parent directory ? */
+	if (dip->i_nlink == JFS_LINK_MAX) {
+		rc = -EMLINK;
+		goto out1;
+	}
+
+	/*
+	 * search parent directory for entry/freespace
+	 * (dtSearch() returns parent directory page pinned)
+	 */
+	if ((rc = get_UCSname(&dname, dentry)))
+		goto out1;
+
+	/*
+	 * Either iAlloc() or txBegin() may block.  Deadlock can occur if we
+	 * block there while holding dtree page, so we allocate the inode &
+	 * begin the transaction before we search the directory.
+	 */
+	ip = ialloc(dip, S_IFDIR | mode);
+	if (ip == NULL) {
+		rc = -ENOSPC;
+		goto out2;
+	}
+
+	tid = txBegin(dip->i_sb, 0);
+
+	down(&JFS_IP(dip)->commit_sem);
+	down(&JFS_IP(ip)->commit_sem);
+
+	if ((rc = dtSearch(dip, &dname, &ino, &btstack, JFS_CREATE))) {
+		jfs_err("jfs_mkdir: dtSearch returned %d", rc);
+		goto out3;
+	}
+
+	tblk = tid_to_tblock(tid);
+	tblk->xflag |= COMMIT_CREATE;
+	tblk->ip = ip;
+
+	iplist[0] = dip;
+	iplist[1] = ip;
+
+	/*
+	 * initialize the child directory in-line in inode
+	 */
+	dtInitRoot(tid, ip, dip->i_ino);
+
+	/*
+	 * create entry in parent directory for child directory
+	 * (dtInsert() releases parent directory page)
+	 */
+	ino = ip->i_ino;
+	if ((rc = dtInsert(tid, dip, &dname, &ino, &btstack))) {
+		jfs_err("jfs_mkdir: dtInsert returned %d", rc);
+
+		if (rc == -EIO)
+			txAbort(tid, 1);	/* Marks Filesystem dirty */
+		else
+			txAbort(tid, 0);	/* Filesystem full */
+		goto out3;
+	}
+
+	ip->i_nlink = 2;	/* for '.' */
+	ip->i_op = &jfs_dir_inode_operations;
+	ip->i_fop = &jfs_dir_operations;
+
+	insert_inode_hash(ip);
+	mark_inode_dirty(ip);
+
+	/* update parent directory inode */
+	dip->i_nlink++;		/* for '..' from child directory */
+	dip->i_ctime = dip->i_mtime = CURRENT_TIME;
+	mark_inode_dirty(dip);
+
+	rc = txCommit(tid, 2, &iplist[0], 0);
+
+      out3:
+	txEnd(tid);
+	up(&JFS_IP(dip)->commit_sem);
+	up(&JFS_IP(ip)->commit_sem);
+	if (rc) {
+		ip->i_nlink = 0;
+		iput(ip);
+	} else
+		d_instantiate(dentry, ip);
+
+      out2:
+	free_UCSname(&dname);
+
+      out1:
+
+	jfs_info("jfs_mkdir: rc:%d", rc);
+	return rc;
+}
+
+/*
+ * NAME:	jfs_rmdir(dip, dentry)
+ *
+ * FUNCTION:	remove a link to child directory
+ *
+ * PARAMETER:	dip 	- parent inode
+ *		dentry	- child directory dentry
+ *
+ * RETURN:	-EINVAL	- if name is . or ..
+ *		-EINVAL  - if . or .. exist but are invalid.
+ *		errors from subroutines
+ *
+ * note:
+ * if other threads have the directory open when the last link 
+ * is removed, the "." and ".." entries, if present, are removed before 
+ * rmdir() returns and no new entries may be created in the directory, 
+ * but the directory is not removed until the last reference to 
+ * the directory is released (cf.unlink() of regular file).
+ */
+static int jfs_rmdir(struct inode *dip, struct dentry *dentry)
+{
+	int rc;
+	tid_t tid;		/* transaction id */
+	struct inode *ip = dentry->d_inode;
+	ino_t ino;
+	struct component_name dname;
+	struct inode *iplist[2];
+	struct tblock *tblk;
+
+	jfs_info("jfs_rmdir: dip:0x%p name:%s", dip, dentry->d_name.name);
+
+	/* directory must be empty to be removed */
+	if (!dtEmpty(ip)) {
+		rc = -ENOTEMPTY;
+		goto out;
+	}
+
+	if ((rc = get_UCSname(&dname, dentry)))
+		goto out;
+
+	tid = txBegin(dip->i_sb, 0);
+
+	down(&JFS_IP(dip)->commit_sem);
+	down(&JFS_IP(ip)->commit_sem);
+
+	iplist[0] = dip;
+	iplist[1] = ip;
+
+	tblk = tid_to_tblock(tid);
+	tblk->xflag |= COMMIT_DELETE;
+	tblk->ip = ip;
+
+	/*
+	 * delete the entry of target directory from parent directory
+	 */
+	ino = ip->i_ino;
+	if ((rc = dtDelete(tid, dip, &dname, &ino, JFS_REMOVE))) {
+		jfs_err("jfs_rmdir: dtDelete returned %d", rc);
+		if (rc == -EIO)
+			txAbort(tid, 1);
+		txEnd(tid);
+		up(&JFS_IP(dip)->commit_sem);
+		up(&JFS_IP(ip)->commit_sem);
+
+		goto out2;
+	}
+
+	/* update parent directory's link count corresponding
+	 * to ".." entry of the target directory deleted
+	 */
+	dip->i_nlink--;
+	dip->i_ctime = dip->i_mtime = CURRENT_TIME;
+	mark_inode_dirty(dip);
+
+	/*
+	 * OS/2 could have created EA and/or ACL
+	 */
+	/* free EA from both persistent and working map */
+	if (JFS_IP(ip)->ea.flag & DXD_EXTENT) {
+		/* free EA pages */
+		txEA(tid, ip, &JFS_IP(ip)->ea, NULL);
+	}
+	JFS_IP(ip)->ea.flag = 0;
+
+	/* free ACL from both persistent and working map */
+	if (JFS_IP(ip)->acl.flag & DXD_EXTENT) {
+		/* free ACL pages */
+		txEA(tid, ip, &JFS_IP(ip)->acl, NULL);
+	}
+	JFS_IP(ip)->acl.flag = 0;
+
+	/* mark the target directory as deleted */
+	ip->i_nlink = 0;
+	mark_inode_dirty(ip);
+
+	rc = txCommit(tid, 2, &iplist[0], 0);
+
+	txEnd(tid);
+
+	up(&JFS_IP(dip)->commit_sem);
+	up(&JFS_IP(ip)->commit_sem);
+
+	/*
+	 * Truncating the directory index table is not guaranteed.  It
+	 * may need to be done iteratively
+	 */
+	if (test_cflag(COMMIT_Stale, dip)) {
+		if (dip->i_size > 1)
+			jfs_truncate_nolock(dip, 0);
+
+		clear_cflag(COMMIT_Stale, dip);
+	}
+
+      out2:
+	free_UCSname(&dname);
+
+      out:
+	jfs_info("jfs_rmdir: rc:%d", rc);
+	return rc;
+}
+
+/*
+ * NAME:	jfs_unlink(dip, dentry)
+ *
+ * FUNCTION:	remove a link to object <vp> named by <name> 
+ *		from parent directory <dvp>
+ *
+ * PARAMETER:	dip 	- inode of parent directory
+ *		dentry 	- dentry of object to be removed
+ *
+ * RETURN:	errors from subroutines
+ *
+ * note:
+ * temporary file: if one or more processes have the file open
+ * when the last link is removed, the link will be removed before
+ * unlink() returns, but the removal of the file contents will be
+ * postponed until all references to the files are closed.
+ *
+ * JFS does NOT support unlink() on directories.
+ *
+ */
+static int jfs_unlink(struct inode *dip, struct dentry *dentry)
+{
+	int rc;
+	tid_t tid;		/* transaction id */
+	struct inode *ip = dentry->d_inode;
+	ino_t ino;
+	struct component_name dname;	/* object name */
+	struct inode *iplist[2];
+	struct tblock *tblk;
+	s64 new_size = 0;
+	int commit_flag;
+
+	jfs_info("jfs_unlink: dip:0x%p name:%s", dip, dentry->d_name.name);
+
+	if ((rc = get_UCSname(&dname, dentry)))
+		goto out;
+
+	IWRITE_LOCK(ip);
+
+	tid = txBegin(dip->i_sb, 0);
+
+	down(&JFS_IP(dip)->commit_sem);
+	down(&JFS_IP(ip)->commit_sem);
+
+	iplist[0] = dip;
+	iplist[1] = ip;
+
+	/*
+	 * delete the entry of target file from parent directory
+	 */
+	ino = ip->i_ino;
+	if ((rc = dtDelete(tid, dip, &dname, &ino, JFS_REMOVE))) {
+		jfs_err("jfs_unlink: dtDelete returned %d", rc);
+		if (rc == -EIO)
+			txAbort(tid, 1);	/* Marks FS Dirty */
+		txEnd(tid);
+		up(&JFS_IP(dip)->commit_sem);
+		up(&JFS_IP(ip)->commit_sem);
+		IWRITE_UNLOCK(ip);
+		goto out1;
+	}
+
+	ASSERT(ip->i_nlink);
+
+	ip->i_ctime = dip->i_ctime = dip->i_mtime = CURRENT_TIME;
+	mark_inode_dirty(dip);
+
+	/* update target's inode */
+	ip->i_nlink--;
+	mark_inode_dirty(ip);
+
+	/*
+	 *      commit zero link count object
+	 */
+	if (ip->i_nlink == 0) {
+		assert(!test_cflag(COMMIT_Nolink, ip));
+		/* free block resources */
+		if ((new_size = commitZeroLink(tid, ip)) < 0) {
+			txAbort(tid, 1);	/* Marks FS Dirty */
+			txEnd(tid);
+			up(&JFS_IP(dip)->commit_sem);
+			up(&JFS_IP(ip)->commit_sem);
+			IWRITE_UNLOCK(ip);
+			rc = new_size;
+			goto out1;
+		}
+		tblk = tid_to_tblock(tid);
+		tblk->xflag |= COMMIT_DELETE;
+		tblk->ip = ip;
+	}
+
+	/*
+	 * Incomplete truncate of file data can
+	 * result in timing problems unless we synchronously commit the
+	 * transaction.
+	 */
+	if (new_size)
+		commit_flag = COMMIT_SYNC;
+	else
+		commit_flag = 0;
+
+	/*
+	 * If xtTruncate was incomplete, commit synchronously to avoid
+	 * timing complications
+	 */
+	rc = txCommit(tid, 2, &iplist[0], commit_flag);
+
+	txEnd(tid);
+
+	up(&JFS_IP(dip)->commit_sem);
+	up(&JFS_IP(ip)->commit_sem);
+
+
+	while (new_size && (rc == 0)) {
+		tid = txBegin(dip->i_sb, 0);
+		down(&JFS_IP(ip)->commit_sem);
+		new_size = xtTruncate_pmap(tid, ip, new_size);
+		if (new_size < 0) {
+			txAbort(tid, 1);	/* Marks FS Dirty */
+			rc = new_size;
+		} else
+			rc = txCommit(tid, 2, &iplist[0], COMMIT_SYNC);
+		txEnd(tid);
+		up(&JFS_IP(ip)->commit_sem);
+	}
+
+	if (ip->i_nlink == 0)
+		set_cflag(COMMIT_Nolink, ip);
+
+	IWRITE_UNLOCK(ip);
+
+	/*
+	 * Truncating the directory index table is not guaranteed.  It
+	 * may need to be done iteratively
+	 */
+	if (test_cflag(COMMIT_Stale, dip)) {
+		if (dip->i_size > 1)
+			jfs_truncate_nolock(dip, 0);
+
+		clear_cflag(COMMIT_Stale, dip);
+	}
+
+      out1:
+	free_UCSname(&dname);
+      out:
+	jfs_info("jfs_unlink: rc:%d", rc);
+	return rc;
+}
+
+/*
+ * NAME:	commitZeroLink()
+ *
+ * FUNCTION:    for non-directory, called by jfs_remove(),
+ *		truncate a regular file, directory or symbolic
+ *		link to zero length. return 0 if type is not 
+ *		one of these.
+ *
+ *		if the file is currently associated with a VM segment
+ *		only permanent disk and inode map resources are freed,
+ *		and neither the inode nor indirect blocks are modified
+ *		so that the resources can be later freed in the work
+ *		map by ctrunc1.
+ *		if there is no VM segment on entry, the resources are
+ *		freed in both work and permanent map.
+ *		(? for temporary file - memory object is cached even 
+ *		after no reference:
+ *		reference count > 0 -   )
+ *
+ * PARAMETERS:	cd	- pointer to commit data structure.
+ *			  current inode is the one to truncate.
+ *
+ * RETURN:	Errors from subroutines
+ */
+static s64 commitZeroLink(tid_t tid, struct inode *ip)
+{
+	int filetype;
+	struct tblock *tblk;
+
+	jfs_info("commitZeroLink: tid = %d, ip = 0x%p", tid, ip);
+
+	filetype = ip->i_mode & S_IFMT;
+	switch (filetype) {
+	case S_IFREG:
+		break;
+	case S_IFLNK:
+		/* fast symbolic link */
+		if (ip->i_size < IDATASIZE) {
+			ip->i_size = 0;
+			return 0;
+		}
+		break;
+	default:
+		assert(filetype != S_IFDIR);
+		return 0;
+	}
+
+	set_cflag(COMMIT_Freewmap, ip);
+
+	/* mark transaction of block map update type */
+	tblk = tid_to_tblock(tid);
+	tblk->xflag |= COMMIT_PMAP;
+
+	/*
+	 * free EA
+	 */
+	if (JFS_IP(ip)->ea.flag & DXD_EXTENT)
+		/* acquire maplock on EA to be freed from block map */
+		txEA(tid, ip, &JFS_IP(ip)->ea, NULL);
+
+	/*
+	 * free ACL
+	 */
+	if (JFS_IP(ip)->acl.flag & DXD_EXTENT)
+		/* acquire maplock on EA to be freed from block map */
+		txEA(tid, ip, &JFS_IP(ip)->acl, NULL);
+
+	/*
+	 * free xtree/data (truncate to zero length):
+	 * free xtree/data pages from cache if COMMIT_PWMAP, 
+	 * free xtree/data blocks from persistent block map, and
+	 * free xtree/data blocks from working block map if COMMIT_PWMAP;
+	 */
+	if (ip->i_size)
+		return xtTruncate_pmap(tid, ip, 0);
+
+	return 0;
+}
+
+
+/*
+ * NAME:	freeZeroLink()
+ *
+ * FUNCTION:    for non-directory, called by iClose(),
+ *		free resources of a file from cache and WORKING map 
+ *		for a file previously committed with zero link count
+ *		while associated with a pager object,
+ *
+ * PARAMETER:	ip	- pointer to inode of file.
+ *
+ * RETURN:	0 -ok
+ */
+int freeZeroLink(struct inode *ip)
+{
+	int rc = 0;
+	int type;
+
+	jfs_info("freeZeroLink: ip = 0x%p", ip);
+
+	/* return if not reg or symbolic link or if size is
+	 * already ok.
+	 */
+	type = ip->i_mode & S_IFMT;
+
+	switch (type) {
+	case S_IFREG:
+		break;
+	case S_IFLNK:
+		/* if its contained in inode nothing to do */
+		if (ip->i_size < IDATASIZE)
+			return 0;
+		break;
+	default:
+		return 0;
+	}
+
+	/*
+	 * free EA
+	 */
+	if (JFS_IP(ip)->ea.flag & DXD_EXTENT) {
+		s64 xaddr = addressDXD(&JFS_IP(ip)->ea);
+		int xlen = lengthDXD(&JFS_IP(ip)->ea);
+		struct maplock maplock;	/* maplock for COMMIT_WMAP */
+		struct pxd_lock *pxdlock;	/* maplock for COMMIT_WMAP */
+
+		/* free EA pages from cache */
+		invalidate_dxd_metapages(ip, JFS_IP(ip)->ea);
+
+		/* free EA extent from working block map */
+		maplock.index = 1;
+		pxdlock = (struct pxd_lock *) & maplock;
+		pxdlock->flag = mlckFREEPXD;
+		PXDaddress(&pxdlock->pxd, xaddr);
+		PXDlength(&pxdlock->pxd, xlen);
+		txFreeMap(ip, pxdlock, 0, COMMIT_WMAP);
+	}
+
+	/*
+	 * free ACL
+	 */
+	if (JFS_IP(ip)->acl.flag & DXD_EXTENT) {
+		s64 xaddr = addressDXD(&JFS_IP(ip)->acl);
+		int xlen = lengthDXD(&JFS_IP(ip)->acl);
+		struct maplock maplock;	/* maplock for COMMIT_WMAP */
+		struct pxd_lock *pxdlock;	/* maplock for COMMIT_WMAP */
+
+		invalidate_dxd_metapages(ip, JFS_IP(ip)->acl);
+
+		/* free ACL extent from working block map */
+		maplock.index = 1;
+		pxdlock = (struct pxd_lock *) & maplock;
+		pxdlock->flag = mlckFREEPXD;
+		PXDaddress(&pxdlock->pxd, xaddr);
+		PXDlength(&pxdlock->pxd, xlen);
+		txFreeMap(ip, pxdlock, 0, COMMIT_WMAP);
+	}
+
+	/*
+	 * free xtree/data (truncate to zero length):
+	 * free xtree/data pages from cache, and
+	 * free xtree/data blocks from working block map;
+	 */
+	if (ip->i_size)
+		rc = xtTruncate(0, ip, 0, COMMIT_WMAP);
+
+	return rc;
+}
+
+/*
+ * NAME:	jfs_link(vp, dvp, name, crp)
+ *
+ * FUNCTION:	create a link to <vp> by the name = <name>
+ *		in the parent directory <dvp>
+ *
+ * PARAMETER:	vp 	- target object
+ *		dvp	- parent directory of new link
+ *		name	- name of new link to target object
+ *		crp	- credential
+ *
+ * RETURN:	Errors from subroutines
+ *
+ * note:
+ * JFS does NOT support link() on directories (to prevent circular
+ * path in the directory hierarchy);
+ * EPERM: the target object is a directory, and either the caller
+ * does not have appropriate privileges or the implementation prohibits
+ * using link() on directories [XPG4.2].
+ *
+ * JFS does NOT support links between file systems:
+ * EXDEV: target object and new link are on different file systems and
+ * implementation does not support links between file systems [XPG4.2].
+ */
+static int jfs_link(struct dentry *old_dentry,
+	     struct inode *dir, struct dentry *dentry)
+{
+	int rc;
+	tid_t tid;
+	struct inode *ip = old_dentry->d_inode;
+	ino_t ino;
+	struct component_name dname;
+	struct btstack btstack;
+	struct inode *iplist[2];
+
+	jfs_info("jfs_link: %s %s", old_dentry->d_name.name,
+		 dentry->d_name.name);
+
+	/* JFS does NOT support link() on directories */
+	if (S_ISDIR(ip->i_mode))
+		return -EPERM;
+
+	tid = txBegin(ip->i_sb, 0);
+
+	down(&JFS_IP(dir)->commit_sem);
+	down(&JFS_IP(ip)->commit_sem);
+
+	if (ip->i_nlink == JFS_LINK_MAX) {
+		rc = -EMLINK;
+		goto out;
+	}
+
+	if (ip->i_nlink == 0) {
+		rc = -ENOENT;
+		goto out;
+	}
+
+	/*
+	 * scan parent directory for entry/freespace
+	 */
+	if ((rc = get_UCSname(&dname, dentry)))
+		goto out;
+
+	if ((rc = dtSearch(dir, &dname, &ino, &btstack, JFS_CREATE)))
+		goto free_dname;
+
+	/*
+	 * create entry for new link in parent directory
+	 */
+	ino = ip->i_ino;
+	if ((rc = dtInsert(tid, dir, &dname, &ino, &btstack)))
+		goto free_dname;
+
+	/* update object inode */
+	ip->i_nlink++;		/* for new link */
+	ip->i_ctime = CURRENT_TIME;
+	mark_inode_dirty(dir);
+	atomic_inc(&ip->i_count);
+
+	iplist[0] = ip;
+	iplist[1] = dir;
+	rc = txCommit(tid, 2, &iplist[0], 0);
+
+	if (!rc)
+		d_instantiate(dentry, ip);
+      free_dname:
+	free_UCSname(&dname);
+
+      out:
+	txEnd(tid);
+
+	up(&JFS_IP(dir)->commit_sem);
+	up(&JFS_IP(ip)->commit_sem);
+
+	jfs_info("jfs_link: rc:%d", rc);
+	return rc;
+}
+
+/*
+ * NAME:	jfs_symlink(dip, dentry, name)
+ *
+ * FUNCTION:	creates a symbolic link to <symlink> by name <name>
+ *		        in directory <dip>
+ *
+ * PARAMETER:	dip	    - parent directory vnode
+ *		        dentry 	- dentry of symbolic link
+ *		        name    - the path name of the existing object 
+ *			              that will be the source of the link
+ *
+ * RETURN:	errors from subroutines
+ *
+ * note:
+ * ENAMETOOLONG: pathname resolution of a symbolic link produced
+ * an intermediate result whose length exceeds PATH_MAX [XPG4.2]
+*/
+
+static int jfs_symlink(struct inode *dip, struct dentry *dentry,
+		const char *name)
+{
+	int rc;
+	tid_t tid;
+	ino_t ino = 0;
+	struct component_name dname;
+	int ssize;		/* source pathname size */
+	struct btstack btstack;
+	struct inode *ip = dentry->d_inode;
+	unchar *i_fastsymlink;
+	s64 xlen = 0;
+	int bmask = 0, xsize;
+	s64 extent = 0, xaddr;
+	struct metapage *mp;
+	struct super_block *sb;
+	struct tblock *tblk;
+
+	struct inode *iplist[2];
+
+	jfs_info("jfs_symlink: dip:0x%p name:%s", dip, name);
+
+	ssize = strlen(name) + 1;
+
+	/*
+	 * search parent directory for entry/freespace
+	 * (dtSearch() returns parent directory page pinned)
+	 */
+
+	if ((rc = get_UCSname(&dname, dentry)))
+		goto out1;
+
+	/*
+	 * allocate on-disk/in-memory inode for symbolic link:
+	 * (iAlloc() returns new, locked inode)
+	 */
+	ip = ialloc(dip, S_IFLNK | 0777);
+	if (ip == NULL) {
+		rc = -ENOSPC;
+		goto out2;
+	}
+
+	tid = txBegin(dip->i_sb, 0);
+
+	down(&JFS_IP(dip)->commit_sem);
+	down(&JFS_IP(ip)->commit_sem);
+
+	tblk = tid_to_tblock(tid);
+	tblk->xflag |= COMMIT_CREATE;
+	tblk->ip = ip;
+
+	/* fix symlink access permission
+	 * (dir_create() ANDs in the u.u_cmask, 
+	 * but symlinks really need to be 777 access)
+	 */
+	ip->i_mode |= 0777;
+
+	/*
+	 * write symbolic link target path name
+	 */
+	xtInitRoot(tid, ip);
+
+	/*
+	 * write source path name inline in on-disk inode (fast symbolic link)
+	 */
+
+	if (ssize <= IDATASIZE) {
+		ip->i_op = &jfs_symlink_inode_operations;
+
+		i_fastsymlink = JFS_IP(ip)->i_inline;
+		memcpy(i_fastsymlink, name, ssize);
+		ip->i_size = ssize - 1;
+
+		/*
+		 * if symlink is > 128 bytes, we don't have the space to
+		 * store inline extended attributes
+		 */
+		if (ssize > sizeof (JFS_IP(ip)->i_inline))
+			JFS_IP(ip)->mode2 &= ~INLINEEA;
+
+		jfs_info("jfs_symlink: fast symlink added  ssize:%d name:%s ",
+			 ssize, name);
+	}
+	/*
+	 * write source path name in a single extent
+	 */
+	else {
+		jfs_info("jfs_symlink: allocate extent ip:0x%p", ip);
+
+		ip->i_op = &page_symlink_inode_operations;
+		ip->i_mapping->a_ops = &jfs_aops;
+
+		/*
+		 * even though the data of symlink object (source 
+		 * path name) is treated as non-journaled user data,
+		 * it is read/written thru buffer cache for performance.
+		 */
+		sb = ip->i_sb;
+		bmask = JFS_SBI(sb)->bsize - 1;
+		xsize = (ssize + bmask) & ~bmask;
+		xaddr = 0;
+		xlen = xsize >> JFS_SBI(sb)->l2bsize;
+		if ((rc = xtInsert(tid, ip, 0, 0, xlen, &xaddr, 0))) {
+			txAbort(tid, 0);
+			rc = -ENOSPC;
+			goto out3;
+		}
+		extent = xaddr;
+		ip->i_size = ssize - 1;
+		while (ssize) {
+			/* This is kind of silly since PATH_MAX == 4K */
+			int copy_size = min(ssize, PSIZE);
+
+			mp = get_metapage(ip, xaddr, PSIZE, 1);
+
+			if (mp == NULL) {
+				dbFree(ip, extent, xlen);
+				rc = -EIO;
+				txAbort(tid, 0);
+				goto out3;
+			}
+			memcpy(mp->data, name, copy_size);
+			flush_metapage(mp);
+			ssize -= copy_size;
+			name += copy_size;
+			xaddr += JFS_SBI(sb)->nbperpage;
+		}
+		ip->i_blocks = LBLK2PBLK(sb, xlen);
+	}
+
+	/*
+	 * create entry for symbolic link in parent directory
+	 */
+	rc = dtSearch(dip, &dname, &ino, &btstack, JFS_CREATE);
+	if (rc == 0) {
+		ino = ip->i_ino;
+		rc = dtInsert(tid, dip, &dname, &ino, &btstack);
+	}
+	if (rc) {
+		if (xlen)
+			dbFree(ip, extent, xlen);
+		txAbort(tid, 0);
+		/* discard new inode */
+		goto out3;
+	}
+
+	insert_inode_hash(ip);
+	mark_inode_dirty(ip);
+
+	/*
+	 * commit update of parent directory and link object
+	 */
+
+	iplist[0] = dip;
+	iplist[1] = ip;
+	rc = txCommit(tid, 2, &iplist[0], 0);
+
+      out3:
+	txEnd(tid);
+	up(&JFS_IP(dip)->commit_sem);
+	up(&JFS_IP(ip)->commit_sem);
+	if (rc) {
+		ip->i_nlink = 0;
+		iput(ip);
+	} else
+		d_instantiate(dentry, ip);
+
+      out2:
+	free_UCSname(&dname);
+
+      out1:
+	jfs_info("jfs_symlink: rc:%d", rc);
+	return rc;
+}
+
+
+/*
+ * NAME:        jfs_rename
+ *
+ * FUNCTION:    rename a file or directory
+ */
+static int jfs_rename(struct inode *old_dir, struct dentry *old_dentry,
+	       struct inode *new_dir, struct dentry *new_dentry)
+{
+	struct btstack btstack;
+	ino_t ino;
+	struct component_name new_dname;
+	struct inode *new_ip;
+	struct component_name old_dname;
+	struct inode *old_ip;
+	int rc;
+	tid_t tid;
+	struct tlock *tlck;
+	struct dt_lock *dtlck;
+	struct lv *lv;
+	int ipcount;
+	struct inode *iplist[4];
+	struct tblock *tblk;
+	s64 new_size = 0;
+	int commit_flag;
+
+
+	jfs_info("jfs_rename: %s %s", old_dentry->d_name.name,
+		 new_dentry->d_name.name);
+
+	old_ip = old_dentry->d_inode;
+	new_ip = new_dentry->d_inode;
+
+	if ((rc = get_UCSname(&old_dname, old_dentry)))
+		goto out1;
+
+	if ((rc = get_UCSname(&new_dname, new_dentry)))
+		goto out2;
+
+	/*
+	 * Make sure source inode number is what we think it is
+	 */
+	rc = dtSearch(old_dir, &old_dname, &ino, &btstack, JFS_LOOKUP);
+	if (rc || (ino != old_ip->i_ino)) {
+		rc = -ENOENT;
+		goto out3;
+	}
+
+	/*
+	 * Make sure dest inode number (if any) is what we think it is
+	 */
+	rc = dtSearch(new_dir, &new_dname, &ino, &btstack, JFS_LOOKUP);
+	if (rc == 0) {
+		if ((new_ip == 0) || (ino != new_ip->i_ino)) {
+			rc = -ESTALE;
+			goto out3;
+		}
+	} else if (rc != -ENOENT)
+		goto out3;
+	else if (new_ip) {
+		/* no entry exists, but one was expected */
+		rc = -ESTALE;
+		goto out3;
+	}
+
+	if (S_ISDIR(old_ip->i_mode)) {
+		if (new_ip) {
+			if (!dtEmpty(new_ip)) {
+				rc = -ENOTEMPTY;
+				goto out3;
+			}
+		} else if ((new_dir != old_dir) &&
+			   (new_dir->i_nlink == JFS_LINK_MAX)) {
+			rc = -EMLINK;
+			goto out3;
+		}
+	} else if (new_ip)
+		IWRITE_LOCK(new_ip);
+
+	/*
+	 * The real work starts here
+	 */
+	tid = txBegin(new_dir->i_sb, 0);
+
+	down(&JFS_IP(new_dir)->commit_sem);
+	down(&JFS_IP(old_ip)->commit_sem);
+	if (old_dir != new_dir)
+		down(&JFS_IP(old_dir)->commit_sem);
+
+	if (new_ip) {
+		down(&JFS_IP(new_ip)->commit_sem);
+		/*
+		 * Change existing directory entry to new inode number
+		 */
+		ino = new_ip->i_ino;
+		rc = dtModify(tid, new_dir, &new_dname, &ino,
+			      old_ip->i_ino, JFS_RENAME);
+		if (rc)
+			goto out4;
+		new_ip->i_nlink--;
+		if (S_ISDIR(new_ip->i_mode)) {
+			new_ip->i_nlink--;
+			if (new_ip->i_nlink) {
+				up(&JFS_IP(new_dir)->commit_sem);
+				up(&JFS_IP(old_ip)->commit_sem);
+				if (old_dir != new_dir)
+					up(&JFS_IP(old_dir)->commit_sem);
+				if (!S_ISDIR(old_ip->i_mode) && new_ip)
+					IWRITE_UNLOCK(new_ip);
+				jfs_error(new_ip->i_sb,
+					  "jfs_rename: new_ip->i_nlink != 0");
+				return -EIO;
+			}
+			tblk = tid_to_tblock(tid);
+			tblk->xflag |= COMMIT_DELETE;
+			tblk->ip = new_ip;
+		} else if (new_ip->i_nlink == 0) {
+			assert(!test_cflag(COMMIT_Nolink, new_ip));
+			/* free block resources */
+			if ((new_size = commitZeroLink(tid, new_ip)) < 0) {
+				txAbort(tid, 1);	/* Marks FS Dirty */
+				rc = new_size;		
+				goto out4;
+			}
+			tblk = tid_to_tblock(tid);
+			tblk->xflag |= COMMIT_DELETE;
+			tblk->ip = new_ip;
+		} else {
+			new_ip->i_ctime = CURRENT_TIME;
+			mark_inode_dirty(new_ip);
+		}
+	} else {
+		/*
+		 * Add new directory entry
+		 */
+		rc = dtSearch(new_dir, &new_dname, &ino, &btstack,
+			      JFS_CREATE);
+		if (rc) {
+			jfs_err("jfs_rename didn't expect dtSearch to fail "
+				"w/rc = %d", rc);
+			goto out4;
+		}
+
+		ino = old_ip->i_ino;
+		rc = dtInsert(tid, new_dir, &new_dname, &ino, &btstack);
+		if (rc) {
+			jfs_err("jfs_rename: dtInsert failed w/rc = %d",
+				rc);
+			goto out4;
+		}
+		if (S_ISDIR(old_ip->i_mode))
+			new_dir->i_nlink++;
+	}
+	/*
+	 * Remove old directory entry
+	 */
+
+	ino = old_ip->i_ino;
+	rc = dtDelete(tid, old_dir, &old_dname, &ino, JFS_REMOVE);
+	if (rc) {
+		jfs_err("jfs_rename did not expect dtDelete to return rc = %d",
+			rc);
+		txAbort(tid, 1);	/* Marks Filesystem dirty */
+		goto out4;
+	}
+	if (S_ISDIR(old_ip->i_mode)) {
+		old_dir->i_nlink--;
+		if (old_dir != new_dir) {
+			/*
+			 * Change inode number of parent for moved directory
+			 */
+
+			JFS_IP(old_ip)->i_dtroot.header.idotdot =
+				cpu_to_le32(new_dir->i_ino);
+
+			/* Linelock header of dtree */
+			tlck = txLock(tid, old_ip,
+				    (struct metapage *) &JFS_IP(old_ip)->bxflag,
+				      tlckDTREE | tlckBTROOT | tlckRELINK);
+			dtlck = (struct dt_lock *) & tlck->lock;
+			ASSERT(dtlck->index == 0);
+			lv = & dtlck->lv[0];
+			lv->offset = 0;
+			lv->length = 1;
+			dtlck->index++;
+		}
+	}
+
+	/*
+	 * Update ctime on changed/moved inodes & mark dirty
+	 */
+	old_ip->i_ctime = CURRENT_TIME;
+	mark_inode_dirty(old_ip);
+
+	new_dir->i_ctime = new_dir->i_mtime = CURRENT_TIME;
+	mark_inode_dirty(new_dir);
+
+	/* Build list of inodes modified by this transaction */
+	ipcount = 0;
+	iplist[ipcount++] = old_ip;
+	if (new_ip)
+		iplist[ipcount++] = new_ip;
+	iplist[ipcount++] = old_dir;
+
+	if (old_dir != new_dir) {
+		iplist[ipcount++] = new_dir;
+		old_dir->i_ctime = old_dir->i_mtime = CURRENT_TIME;
+		mark_inode_dirty(old_dir);
+	}
+
+	/*
+	 * Incomplete truncate of file data can
+	 * result in timing problems unless we synchronously commit the
+	 * transaction.
+	 */
+	if (new_size)
+		commit_flag = COMMIT_SYNC;
+	else
+		commit_flag = 0;
+
+	rc = txCommit(tid, ipcount, iplist, commit_flag);
+
+      out4:
+	txEnd(tid);
+
+	up(&JFS_IP(new_dir)->commit_sem);
+	up(&JFS_IP(old_ip)->commit_sem);
+	if (old_dir != new_dir)
+		up(&JFS_IP(old_dir)->commit_sem);
+	if (new_ip)
+		up(&JFS_IP(new_ip)->commit_sem);
+
+	while (new_size && (rc == 0)) {
+		tid = txBegin(new_ip->i_sb, 0);
+		down(&JFS_IP(new_ip)->commit_sem);
+		new_size = xtTruncate_pmap(tid, new_ip, new_size);
+		if (new_size < 0) {
+			txAbort(tid, 1);
+			rc = new_size;		
+		} else
+			rc = txCommit(tid, 1, &new_ip, COMMIT_SYNC);
+		txEnd(tid);
+		up(&JFS_IP(new_ip)->commit_sem);
+	}
+	if (new_ip && (new_ip->i_nlink == 0))
+		set_cflag(COMMIT_Nolink, new_ip);
+      out3:
+	free_UCSname(&new_dname);
+      out2:
+	free_UCSname(&old_dname);
+      out1:
+	if (new_ip && !S_ISDIR(new_ip->i_mode))
+		IWRITE_UNLOCK(new_ip);
+	/*
+	 * Truncating the directory index table is not guaranteed.  It
+	 * may need to be done iteratively
+	 */
+	if (test_cflag(COMMIT_Stale, old_dir)) {
+		if (old_dir->i_size > 1)
+			jfs_truncate_nolock(old_dir, 0);
+
+		clear_cflag(COMMIT_Stale, old_dir);
+	}
+
+	jfs_info("jfs_rename: returning %d", rc);
+	return rc;
+}
+
+
+/*
+ * NAME:        jfs_mknod
+ *
+ * FUNCTION:    Create a special file (device)
+ */
+static int jfs_mknod(struct inode *dir, struct dentry *dentry,
+		     int mode, int rdev)
+{
+	struct btstack btstack;
+	struct component_name dname;
+	ino_t ino;
+	struct inode *ip;
+	struct inode *iplist[2];
+	int rc;
+	tid_t tid;
+	struct tblock *tblk;
+
+	jfs_info("jfs_mknod: %s", dentry->d_name.name);
+
+	if ((rc = get_UCSname(&dname, dentry)))
+		goto out;
+
+	ip = ialloc(dir, mode);
+	if (ip == NULL) {
+		rc = -ENOSPC;
+		goto out1;
+	}
+
+	tid = txBegin(dir->i_sb, 0);
+
+	down(&JFS_IP(dir)->commit_sem);
+	down(&JFS_IP(ip)->commit_sem);
+
+	if ((rc = dtSearch(dir, &dname, &ino, &btstack, JFS_CREATE)))
+		goto out3;
+
+	tblk = tid_to_tblock(tid);
+	tblk->xflag |= COMMIT_CREATE;
+	tblk->ip = ip;
+
+	ino = ip->i_ino;
+	if ((rc = dtInsert(tid, dir, &dname, &ino, &btstack)))
+		goto out3;
+
+	ip->i_op = &jfs_file_inode_operations;
+	init_special_inode(ip, ip->i_mode, rdev);
+
+	insert_inode_hash(ip);
+	mark_inode_dirty(ip);
+
+	dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+
+	mark_inode_dirty(dir);
+
+	iplist[0] = dir;
+	iplist[1] = ip;
+	rc = txCommit(tid, 2, iplist, 0);
+
+      out3:
+	txEnd(tid);
+	up(&JFS_IP(ip)->commit_sem);
+	up(&JFS_IP(dir)->commit_sem);
+	if (rc) {
+		ip->i_nlink = 0;
+		iput(ip);
+	} else
+		d_instantiate(dentry, ip);
+
+      out1:
+	free_UCSname(&dname);
+
+      out:
+	jfs_info("jfs_mknod: returning %d", rc);
+	return rc;
+}
+
+static struct dentry *jfs_lookup(struct inode *dip, struct dentry *dentry)
+{
+	struct btstack btstack;
+	ino_t inum;
+	struct inode *ip;
+	struct component_name key;
+	const char *name = dentry->d_name.name;
+	int len = dentry->d_name.len;
+	int rc;
+
+	jfs_info("jfs_lookup: name = %s", name);
+
+
+	if ((name[0] == '.') && (len == 1))
+		inum = dip->i_ino;
+	else if (strcmp(name, "..") == 0)
+		inum = PARENT(dip);
+	else {
+		if ((rc = get_UCSname(&key, dentry)))
+			return ERR_PTR(rc);
+		rc = dtSearch(dip, &key, &inum, &btstack, JFS_LOOKUP);
+		free_UCSname(&key);
+		if (rc == -ENOENT) {
+			d_add(dentry, NULL);
+			return ERR_PTR(0);
+		} else if (rc) {
+			jfs_err("jfs_lookup: dtSearch returned %d", rc);
+			return ERR_PTR(rc);
+		}
+	}
+
+	ip = iget(dip->i_sb, inum);
+	if (ip == NULL) {
+		jfs_err("jfs_lookup: iget failed on inum %d", (uint) inum);
+		return ERR_PTR(-EACCES);
+	}
+	if (is_bad_inode(ip)) {
+		jfs_err("jfs_lookup: iget returned bad inode, inum = %d",
+			(uint) inum);
+		iput(ip);
+		return ERR_PTR(-EACCES);
+	}
+
+	d_add(dentry, ip);
+
+	return ERR_PTR(0);
+}
+
+struct inode_operations jfs_dir_inode_operations = {
+	.create		= jfs_create,
+	.lookup		= jfs_lookup,
+	.link		= jfs_link,
+	.unlink		= jfs_unlink,
+	.symlink	= jfs_symlink,
+	.mkdir		= jfs_mkdir,
+	.rmdir		= jfs_rmdir,
+	.mknod		= jfs_mknod,
+	.rename		= jfs_rename,
+	.setxattr	= jfs_setxattr,
+	.getxattr	= jfs_getxattr,
+	.listxattr	= jfs_listxattr,
+	.removexattr	= jfs_removexattr,
+};
+
+struct file_operations jfs_dir_operations = {
+	.read		= generic_read_dir,
+	.readdir	= jfs_readdir,
+	.fsync		= jfs_fsync,
+};
diff --git a/fs/jfs/resize.c b/fs/jfs/resize.c
new file mode 100644
index 00000000000000..a8f8663fcd1334
--- /dev/null
+++ b/fs/jfs/resize.c
@@ -0,0 +1,539 @@
+/*
+ *   Copyright (C) International Business Machines  Corp., 2000-2003
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+#include <linux/fs.h>
+#include <linux/locks.h>
+
+#include "jfs_incore.h"
+#include "jfs_filsys.h"
+#include "jfs_metapage.h"
+#include "jfs_dinode.h"
+#include "jfs_imap.h"
+#include "jfs_dmap.h"
+#include "jfs_superblock.h"
+#include "jfs_txnmgr.h"
+#include "jfs_debug.h"
+
+extern s64 jfs_get_volume_size(struct super_block *);
+
+#define BITSPERPAGE     (PSIZE << 3)
+#define L2MEGABYTE      20
+#define MEGABYTE        (1 << L2MEGABYTE)
+#define MEGABYTE32     (MEGABYTE << 5)
+
+/* convert block number to bmap file page number */
+#define BLKTODMAPN(b)\
+        (((b) >> 13) + ((b) >> 23) + ((b) >> 33) + 3 + 1)
+
+/*
+ *      jfs_extendfs()
+ *
+ * function: extend file system;
+ *
+ *   |-------------------------------|----------|----------|
+ *   file system space               fsck       inline log
+ *                                   workspace  space
+ *
+ * input:
+ *      new LVSize: in LV blocks (required)
+ *      new LogSize: in LV blocks (optional)
+ *      new FSSize: in LV blocks (optional)
+ *
+ * new configuration:
+ * 1. set new LogSize as specified or default from new LVSize;
+ * 2. compute new FSCKSize from new LVSize;
+ * 3. set new FSSize as MIN(FSSize, LVSize-(LogSize+FSCKSize)) where
+ *    assert(new FSSize >= old FSSize),
+ *    i.e., file system must not be shrinked;
+ */
+int jfs_extendfs(struct super_block *sb, s64 newLVSize, int newLogSize)
+{
+	int rc = 0;
+	struct jfs_sb_info *sbi = JFS_SBI(sb);
+	struct inode *ipbmap = sbi->ipbmap;
+	struct inode *ipbmap2;
+	struct inode *ipimap = sbi->ipimap;
+	struct jfs_log *log = sbi->log;
+	struct bmap *bmp = sbi->bmap;
+	s64 newLogAddress, newFSCKAddress;
+	int newFSCKSize;
+	s64 newMapSize = 0, mapSize;
+	s64 XAddress, XSize, nblocks, xoff, xaddr, t64;
+	s64 oldLVSize;
+	s64 newFSSize;
+	s64 VolumeSize;
+	int newNpages = 0, nPages, newPage, xlen, t32;
+	int tid;
+	int log_formatted = 0;
+	struct inode *iplist[1];
+	struct jfs_superblock *j_sb, *j_sb2;
+	uint old_agsize;
+	struct buffer_head *bh, *bh2;
+
+	/* If the volume hasn't grown, get out now */
+
+	if (sbi->mntflag & JFS_INLINELOG)
+		oldLVSize = addressPXD(&sbi->logpxd) + lengthPXD(&sbi->logpxd);
+	else
+		oldLVSize = addressPXD(&sbi->fsckpxd) +
+		    lengthPXD(&sbi->fsckpxd);
+
+	if (oldLVSize >= newLVSize) {
+		printk(KERN_WARNING
+		       "jfs_extendfs: volume hasn't grown, returning\n");
+		goto out;
+	}
+
+	VolumeSize = jfs_get_volume_size(sb);
+	if (VolumeSize) {
+		if (newLVSize > VolumeSize) {
+			printk(KERN_WARNING "jfs_extendfs: invalid size\n");
+			rc = -EINVAL;
+			goto out;
+		}
+	} else {
+		/* check the device */
+		bh = sb_bread(sb, newLVSize - 1);
+		if (!bh) {
+			printk(KERN_WARNING "jfs_extendfs: invalid size\n");
+			rc = -EINVAL;
+			goto out;
+		}
+		bforget(bh);
+	}
+
+	/* Can't extend write-protected drive */
+
+	if (isReadOnly(ipbmap)) {
+		printk(KERN_WARNING "jfs_extendfs: read-only file system\n");
+		rc = -EROFS;
+		goto out;
+	}
+
+	/*
+	 *      reconfigure LV spaces
+	 *      ---------------------
+	 *
+	 * validate new size, or, if not specified, determine new size
+	 */
+
+	/*
+	 * reconfigure inline log space:
+	 */
+	if ((sbi->mntflag & JFS_INLINELOG)) {
+		if (newLogSize == 0) {
+			/*
+			 * no size specified: default to 1/256 of aggregate
+			 * size; rounded up to a megabyte boundary;
+			 */
+			newLogSize = newLVSize >> 8;
+			t32 = (1 << (20 - sbi->l2bsize)) - 1;
+			newLogSize = (newLogSize + t32) & ~t32;
+			newLogSize =
+			    min(newLogSize, MEGABYTE32 >> sbi->l2bsize);
+		} else {
+			/*
+			 * convert the newLogSize to fs blocks.
+			 *
+			 * Since this is given in megabytes, it will always be
+			 * an even number of pages.
+			 */
+			newLogSize = (newLogSize * MEGABYTE) >> sbi->l2bsize;
+		}
+
+	} else
+		newLogSize = 0;
+
+	newLogAddress = newLVSize - newLogSize;
+
+	/*
+	 * reconfigure fsck work space:
+	 *
+	 * configure it to the end of the logical volume regardless of
+	 * whether file system extends to the end of the aggregate;
+	 * Need enough 4k pages to cover:
+	 *  - 1 bit per block in aggregate rounded up to BPERDMAP boundary
+	 *  - 1 extra page to handle control page and intermediate level pages
+	 *  - 50 extra pages for the chkdsk service log
+	 */
+	t64 = ((newLVSize - newLogSize + BPERDMAP - 1) >> L2BPERDMAP)
+	    << L2BPERDMAP;
+	t32 = ((t64 + (BITSPERPAGE - 1)) / BITSPERPAGE) + 1 + 50;
+	newFSCKSize = t32 << sbi->l2nbperpage;
+	newFSCKAddress = newLogAddress - newFSCKSize;
+
+	/*
+	 * compute new file system space;
+	 */
+	newFSSize = newLVSize - newLogSize - newFSCKSize;
+
+	/* file system cannot be shrinked */
+	if (newFSSize < bmp->db_mapsize) {
+		rc = -EINVAL;
+		goto out;
+	}
+
+	/*
+	 * If we're expanding enough that the inline log does not overlap
+	 * the old one, we can format the new log before we quiesce the
+	 * filesystem.
+	 */
+	if ((sbi->mntflag & JFS_INLINELOG) && (newLogAddress > oldLVSize)) {
+		if ((rc = lmLogFormat(log, newLogAddress, newLogSize)))
+			goto out;
+		log_formatted = 1;
+	}
+	/*
+	 *      quiesce file system
+	 *
+	 * (prepare to move the inline log and to prevent map update)
+	 *
+	 * block any new transactions and wait for completion of
+	 * all wip transactions and flush modified pages s.t.
+	 * on-disk file system is in consistent state and
+	 * log is not required for recovery.
+	 */
+	txQuiesce(sb);
+
+	if (sbi->mntflag & JFS_INLINELOG) {
+		/*
+		 * deactivate old inline log
+		 */
+		lmLogShutdown(log);
+
+		/*
+		 * mark on-disk super block for fs in transition;
+		 *
+		 * update on-disk superblock for the new space configuration
+		 * of inline log space and fsck work space descriptors:
+		 * N.B. FS descriptor is NOT updated;
+		 *
+		 * crash recovery:
+		 * logredo(): if FM_EXTENDFS, return to fsck() for cleanup;
+		 * fsck(): if FM_EXTENDFS, reformat inline log and fsck
+		 * workspace from superblock inline log descriptor and fsck
+		 * workspace descriptor;
+		 */
+
+		/* read in superblock */
+		if ((rc = readSuper(sb, &bh)))
+			goto error_out;
+		j_sb = (struct jfs_superblock *)bh->b_data;
+
+		/* mark extendfs() in progress */
+		j_sb->s_state |= cpu_to_le32(FM_EXTENDFS);
+		j_sb->s_xsize = cpu_to_le64(newFSSize);
+		PXDaddress(&j_sb->s_xfsckpxd, newFSCKAddress);
+		PXDlength(&j_sb->s_xfsckpxd, newFSCKSize);
+		PXDaddress(&j_sb->s_xlogpxd, newLogAddress);
+		PXDlength(&j_sb->s_xlogpxd, newLogSize);
+
+		/* synchronously update superblock */
+		mark_buffer_dirty(bh);
+		ll_rw_block(WRITE, 1, &bh);
+		wait_on_buffer(bh);
+		brelse(bh);
+
+		/*
+		 * format new inline log synchronously;
+		 *
+		 * crash recovery: if log move in progress,
+		 * reformat log and exit success;
+		 */
+		if (!log_formatted)
+			if ((rc = lmLogFormat(log, newLogAddress, newLogSize)))
+				goto error_out;
+
+		/*
+		 * activate new log
+		 */
+		log->base = newLogAddress;
+		log->size = newLogSize >> (L2LOGPSIZE - sb->s_blocksize_bits);
+		if ((rc = lmLogInit(log)))
+			goto error_out;
+	}
+
+	/*
+	 *      extend block allocation map
+	 *      ---------------------------
+	 *
+	 * extendfs() for new extension, retry after crash recovery;
+	 *
+	 * note: both logredo() and fsck() rebuild map from
+	 * the bitmap and configuration parameter from superblock
+	 * (disregarding all other control information in the map);
+	 *
+	 * superblock:
+	 *  s_size: aggregate size in physical blocks;
+	 */
+	/*
+	 *      compute the new block allocation map configuration
+	 *
+	 * map dinode:
+	 *  di_size: map file size in byte;
+	 *  di_nblocks: number of blocks allocated for map file;
+	 *  di_mapsize: number of blocks in aggregate (covered by map);
+	 * map control page:
+	 *  db_mapsize: number of blocks in aggregate (covered by map);
+	 */
+	newMapSize = newFSSize;
+	/* number of data pages of new bmap file:
+	 * roundup new size to full dmap page boundary and
+	 * add 1 extra dmap page for next extendfs()
+	 */
+	t64 = (newMapSize - 1) + BPERDMAP;
+	newNpages = BLKTODMAPN(t64) + 1;
+
+	/*
+	 *      extend map from current map (WITHOUT growing mapfile)
+	 *
+	 * map new extension with unmapped part of the last partial
+	 * dmap page, if applicable, and extra page(s) allocated
+	 * at end of bmap by mkfs() or previous extendfs();
+	 */
+      extendBmap:
+	/* compute number of blocks requested to extend */
+	mapSize = bmp->db_mapsize;
+	XAddress = mapSize;	/* eXtension Address */
+	XSize = newMapSize - mapSize;	/* eXtension Size */
+	old_agsize = bmp->db_agsize;	/* We need to know if this changes */
+
+	/* compute number of blocks that can be extended by current mapfile */
+	t64 = dbMapFileSizeToMapSize(ipbmap);
+	if (mapSize > t64) {
+		printk(KERN_ERR "jfs_extendfs: mapSize (0x%Lx) > t64 (0x%Lx)\n",
+		       (long long) mapSize, (long long) t64);
+		rc = -EIO;
+		goto error_out;
+	}
+	nblocks = min(t64 - mapSize, XSize);
+
+	/*
+	 * update map pages for new extension:
+	 *
+	 * update/init dmap and bubble up the control hierarchy
+	 * incrementally fold up dmaps into upper levels;
+	 * update bmap control page;
+	 */
+	if ((rc = dbExtendFS(ipbmap, XAddress, nblocks)))
+		goto error_out;
+	/*
+	 * the map now has extended to cover additional nblocks:
+	 * dn_mapsize = oldMapsize + nblocks;
+	 */
+	/* ipbmap->i_mapsize += nblocks; */
+	XSize -= nblocks;
+
+	/*
+	 *      grow map file to cover remaining extension
+	 *      and/or one extra dmap page for next extendfs();
+	 *
+	 * allocate new map pages and its backing blocks, and
+	 * update map file xtree
+	 */
+	/* compute number of data pages of current bmap file */
+	nPages = ipbmap->i_size >> L2PSIZE;
+
+	/* need to grow map file ? */
+	if (nPages == newNpages)
+		goto finalizeBmap;
+
+	/*
+	 * grow bmap file for the new map pages required:
+	 *
+	 * allocate growth at the start of newly extended region;
+	 * bmap file only grows sequentially, i.e., both data pages
+	 * and possibly xtree index pages may grow in append mode,
+	 * s.t. logredo() can reconstruct pre-extension state
+	 * by washing away bmap file of pages outside s_size boundary;
+	 */
+	/*
+	 * journal map file growth as if a regular file growth:
+	 * (note: bmap is created with di_mode = IFJOURNAL|IFREG);
+	 *
+	 * journaling of bmap file growth is not required since
+	 * logredo() do/can not use log records of bmap file growth
+	 * but it provides careful write semantics, pmap update, etc.;
+	 */
+	/* synchronous write of data pages: bmap data pages are
+	 * cached in meta-data cache, and not written out
+	 * by txCommit();
+	 */
+	fsync_inode_data_buffers(ipbmap);
+	diWriteSpecial(ipbmap, 0);
+
+	newPage = nPages;	/* first new page number */
+	xoff = newPage << sbi->l2nbperpage;
+	xlen = (newNpages - nPages) << sbi->l2nbperpage;
+	xlen = min(xlen, (int) nblocks) & ~(sbi->nbperpage - 1);
+	xaddr = XAddress;
+
+	tid = txBegin(sb, COMMIT_FORCE);
+
+	if ((rc = xtAppend(tid, ipbmap, 0, xoff, nblocks, &xlen, &xaddr, 0))) {
+		txEnd(tid);
+		goto error_out;
+	}
+	/* update bmap file size */
+	ipbmap->i_size += xlen << sbi->l2bsize;
+	ipbmap->i_blocks += LBLK2PBLK(sb, xlen);
+
+	iplist[0] = ipbmap;
+	rc = txCommit(tid, 1, &iplist[0], COMMIT_FORCE);
+
+	txEnd(tid);
+
+	if (rc)
+		goto error_out;
+
+	/*
+	 * map file has been grown now to cover extension to further out;
+	 * di_size = new map file size;
+	 *
+	 * if huge extension, the previous extension based on previous
+	 * map file size may not have been sufficient to cover whole extension
+	 * (it could have been used up for new map pages),
+	 * but the newly grown map file now covers lot bigger new free space
+	 * available for further extension of map;
+	 */
+	/* any more blocks to extend ? */
+	if (XSize)
+		goto extendBmap;
+
+      finalizeBmap:
+	/* finalize bmap */
+	dbFinalizeBmap(ipbmap);
+
+	/*
+	 *      update inode allocation map
+	 *      ---------------------------
+	 *
+	 * move iag lists from old to new iag;
+	 * agstart field is not updated for logredo() to reconstruct
+	 * iag lists if system crash occurs.
+	 * (computation of ag number from agstart based on agsize
+	 * will correctly identify the new ag);
+	 */
+	/* if new AG size the same as old AG size, done! */
+	if (bmp->db_agsize != old_agsize) {
+		if ((rc = diExtendFS(ipimap, ipbmap)))
+			goto error_out;
+
+		/* finalize imap */
+		if ((rc = diSync(ipimap)))
+			goto error_out;
+	}
+
+	/*
+	 *      finalize
+	 *      --------
+	 *
+	 * extension is committed when on-disk super block is
+	 * updated with new descriptors: logredo will recover
+	 * crash before it to pre-extension state;
+	 */
+
+	/* sync log to skip log replay of bmap file growth transaction; */
+	/* lmLogSync(log, 1); */
+
+	/*
+	 * synchronous write bmap global control page;
+	 * for crash before completion of write
+	 * logredo() will recover to pre-extendfs state;
+	 * for crash after completion of write,
+	 * logredo() will recover post-extendfs state;
+	 */
+	if ((rc = dbSync(ipbmap)))
+		goto error_out;
+
+	/*
+	 * copy primary bmap inode to secondary bmap inode
+	 */
+
+	ipbmap2 = diReadSpecial(sb, BMAP_I, 1);
+	if (ipbmap2 == NULL) {
+		printk(KERN_ERR "jfs_extendfs: diReadSpecial(bmap) failed\n");
+		goto error_out;
+	}
+	memcpy(&JFS_IP(ipbmap2)->i_xtroot, &JFS_IP(ipbmap)->i_xtroot, 288);
+	ipbmap2->i_size = ipbmap->i_size;
+	ipbmap2->i_blocks = ipbmap->i_blocks;
+
+	diWriteSpecial(ipbmap2, 1);
+	diFreeSpecial(ipbmap2);
+
+	/*
+	 *      update superblock
+	 */
+	if ((rc = readSuper(sb, &bh)))
+		goto error_out;
+	j_sb = (struct jfs_superblock *)bh->b_data;
+
+	/* mark extendfs() completion */
+	j_sb->s_state &= cpu_to_le32(~FM_EXTENDFS);
+	j_sb->s_size = cpu_to_le64(bmp->db_mapsize <<
+				   le16_to_cpu(j_sb->s_l2bfactor));
+	j_sb->s_agsize = cpu_to_le32(bmp->db_agsize);
+
+	/* update inline log space descriptor */
+	if (sbi->mntflag & JFS_INLINELOG) {
+		PXDaddress(&(j_sb->s_logpxd), newLogAddress);
+		PXDlength(&(j_sb->s_logpxd), newLogSize);
+	}
+
+	/* record log's mount serial number */
+	j_sb->s_logserial = cpu_to_le32(log->serial);
+
+	/* update fsck work space descriptor */
+	PXDaddress(&(j_sb->s_fsckpxd), newFSCKAddress);
+	PXDlength(&(j_sb->s_fsckpxd), newFSCKSize);
+	j_sb->s_fscklog = 1;
+	/* sb->s_fsckloglen remains the same */
+
+	/* Update secondary superblock */
+	bh2 = sb_bread(sb, SUPER2_OFF >> sb->s_blocksize_bits);
+	if (bh2) {
+		j_sb2 = (struct jfs_superblock *)bh2->b_data;
+		memcpy(j_sb2, j_sb, sizeof (struct jfs_superblock));
+
+		mark_buffer_dirty(bh);
+		ll_rw_block(WRITE, 1, &bh2);
+		wait_on_buffer(bh2);
+		brelse(bh2);
+	}
+
+	/* write primary superblock */
+	mark_buffer_dirty(bh);
+	ll_rw_block(WRITE, 1, &bh);
+	wait_on_buffer(bh);
+	brelse(bh);
+
+	goto resume;
+
+      error_out:
+	jfs_error(sb, "jfs_extendfs");
+
+      resume:
+	/*
+	 *      resume file system transactions
+	 */
+	txResume(sb);
+
+      out:
+	return rc;
+}
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
new file mode 100644
index 00000000000000..76744105ee1267
--- /dev/null
+++ b/fs/jfs/super.c
@@ -0,0 +1,597 @@
+/*
+ *   Copyright (C) International Business Machines Corp., 2000-2005
+ *   Portions Copyright (C) Christoph Hellwig, 2001-2002
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/config.h>
+#include <linux/fs.h>
+#include <linux/module.h>
+#include <linux/blkdev.h>
+#include <linux/completion.h>
+#include <asm/uaccess.h>
+#include "jfs_incore.h"
+#include "jfs_filsys.h"
+#include "jfs_metapage.h"
+#include "jfs_superblock.h"
+#include "jfs_dmap.h"
+#include "jfs_imap.h"
+#include "jfs_debug.h"
+
+MODULE_DESCRIPTION("The Journaled Filesystem (JFS)");
+MODULE_AUTHOR("Steve Best/Dave Kleikamp/Barry Arndt, IBM");
+MODULE_LICENSE("GPL");
+
+static struct super_operations jfs_super_operations;
+static struct file_system_type jfs_fs_type;
+
+int jfs_stop_threads;
+static pid_t jfsIOthread;
+static pid_t jfsCommitThread;
+static pid_t jfsSyncThread;
+DECLARE_COMPLETION(jfsIOwait);
+
+#ifdef CONFIG_JFS_DEBUG
+int jfsloglevel = JFS_LOGLEVEL_WARN;
+MODULE_PARM(jfsloglevel, "i");
+MODULE_PARM_DESC(jfsloglevel, "Specify JFS loglevel (0, 1 or 2)");
+#endif
+
+/*
+ * External declarations
+ */
+extern int jfs_mount(struct super_block *);
+extern int jfs_mount_rw(struct super_block *, int);
+extern int jfs_umount(struct super_block *);
+extern int jfs_umount_rw(struct super_block *);
+
+extern int jfsIOWait(void *);
+extern int jfs_lazycommit(void *);
+extern int jfs_sync(void *);
+extern void jfs_clear_inode(struct inode *inode);
+extern void jfs_read_inode(struct inode *inode);
+extern void jfs_dirty_inode(struct inode *inode);
+extern void jfs_delete_inode(struct inode *inode);
+extern void jfs_write_inode(struct inode *inode, int wait);
+extern int jfs_extendfs(struct super_block *, s64, int);
+
+#ifdef PROC_FS_JFS		/* see jfs_debug.h */
+extern void jfs_proc_init(void);
+extern void jfs_proc_clean(void);
+#endif
+
+extern wait_queue_head_t jfs_IO_thread_wait;
+extern wait_queue_head_t jfs_commit_thread_wait;
+extern wait_queue_head_t jfs_sync_thread_wait;
+
+static void jfs_handle_error(struct super_block *sb)
+{
+	struct jfs_sb_info *sbi = JFS_SBI(sb);
+
+	if (sb->s_flags & MS_RDONLY)
+		return;
+
+	updateSuper(sb, FM_DIRTY);
+
+	if (sbi->flag & JFS_ERR_PANIC)
+		panic("JFS (device %s): panic forced after error\n",
+			bdevname(sb->s_dev));
+	else if (sbi->flag & JFS_ERR_REMOUNT_RO) {
+		jfs_err("ERROR: (device %s): remounting filesystem "
+			"as read-only\n",
+			bdevname(sb->s_dev));
+		sb->s_flags |= MS_RDONLY;
+	} 
+
+	/* nothing is done for continue beyond marking the superblock dirty */
+}
+
+void jfs_error(struct super_block *sb, const char * function, ...)
+{
+	static char error_buf[256];
+	va_list args;
+
+	va_start(args, function);
+	vsprintf(error_buf, function, args);
+	va_end(args);
+
+	printk(KERN_ERR "ERROR: (device %s): %s\n", bdevname(sb->s_dev),
+	       error_buf);
+
+	jfs_handle_error(sb);
+}
+
+static int jfs_statfs(struct super_block *sb, struct statfs *buf)
+{
+	struct jfs_sb_info *sbi = JFS_SBI(sb);
+	s64 maxinodes;
+	struct inomap *imap = JFS_IP(sbi->ipimap)->i_imap;
+
+	jfs_info("In jfs_statfs");
+	buf->f_type = JFS_SUPER_MAGIC;
+	buf->f_bsize = sbi->bsize;
+	buf->f_blocks = sbi->bmap->db_mapsize;
+	buf->f_bfree = sbi->bmap->db_nfree;
+	buf->f_bavail = sbi->bmap->db_nfree;
+	/*
+	 * If we really return the number of allocated & free inodes, some
+	 * applications will fail because they won't see enough free inodes.
+	 * We'll try to calculate some guess as to how may inodes we can
+	 * really allocate
+	 *
+	 * buf->f_files = atomic_read(&imap->im_numinos);
+	 * buf->f_ffree = atomic_read(&imap->im_numfree);
+	 */
+	maxinodes = min((s64) atomic_read(&imap->im_numinos) +
+			((sbi->bmap->db_nfree >> imap->im_l2nbperiext)
+			 << L2INOSPEREXT), (s64) 0xffffffffLL);
+	buf->f_files = maxinodes;
+	buf->f_ffree = maxinodes - (atomic_read(&imap->im_numinos) -
+				    atomic_read(&imap->im_numfree));
+
+	buf->f_namelen = JFS_NAME_MAX;
+	return 0;
+}
+
+static void jfs_put_super(struct super_block *sb)
+{
+	struct jfs_sb_info *sbi = JFS_SBI(sb);
+	int rc;
+
+	jfs_info("In jfs_put_super");
+	rc = jfs_umount(sb);
+	if (rc)
+		jfs_err("jfs_umount failed with return code %d", rc);
+	if (sbi->nls_tab) {
+		unload_nls(sbi->nls_tab);
+		sbi->nls_tab = NULL;
+	}
+
+	kfree(sbi);
+}
+
+s64 jfs_get_volume_size(struct super_block *sb)
+{
+	uint blocks = 0;
+	s64 bytes;
+	kdev_t dev = sb->s_dev;
+	int major = MAJOR(dev);
+	int minor = MINOR(dev);
+
+	if (blk_size[major]) {
+		blocks = blk_size[major][minor];
+		if (blocks) {
+			bytes = ((s64)blocks) << BLOCK_SIZE_BITS;
+			return bytes >> sb->s_blocksize_bits;
+		}
+	}
+	return 0;
+}
+
+static int parse_options(char *options, struct super_block *sb, s64 *newLVSize,
+			 int *flag)
+{
+	void *nls_map = (void *)-1;	/* -1: no change;  NULL: none */
+	char *this_char;
+	char *value;
+	struct jfs_sb_info *sbi = JFS_SBI(sb);
+
+	*newLVSize = 0;
+
+	if (!options)
+		return 1;
+	while ((this_char = strsep(&options, ",")) != NULL) {
+		if (!*this_char)
+			continue;
+		if ((value = strchr(this_char, '=')) != NULL)
+			*value++ = 0;
+		if (!strcmp(this_char, "errors")) {
+			if (!value || !*value)
+				goto needs_arg;
+			if (!strcmp(value, "continue")) {
+				*flag &= ~JFS_ERR_REMOUNT_RO;
+				*flag &= ~JFS_ERR_PANIC;
+				*flag |= JFS_ERR_CONTINUE;
+			} else if (!strcmp(value, "remount-ro")) {
+				*flag &= ~JFS_ERR_CONTINUE;
+				*flag &= ~JFS_ERR_PANIC;
+				*flag |= JFS_ERR_REMOUNT_RO;
+			} else if (!strcmp(value, "panic")) {
+				*flag &= ~JFS_ERR_CONTINUE;
+				*flag &= ~JFS_ERR_REMOUNT_RO;
+				*flag |= JFS_ERR_PANIC;
+			} else {
+				printk(KERN_ERR "JFS: %s is an invalid error handler\n", value);
+				goto cleanup;
+			}
+		} else if (!strcmp(this_char, "integrity")) {
+			*flag &= ~JFS_NOINTEGRITY;
+		} else 	if (!strcmp(this_char, "nointegrity")) {
+			*flag |= JFS_NOINTEGRITY;
+		} else if (!strcmp(this_char, "iocharset")) {
+			if (!value || !*value)
+				goto needs_arg;
+			if (nls_map && nls_map != (void *) -1)
+				unload_nls(nls_map);
+			if (!strcmp(value, "none"))
+				nls_map = NULL;
+			else
+				nls_map = load_nls(value);
+		} else if (!strcmp(this_char, "resize")) {
+			if (!value || !*value) {
+				*newLVSize = jfs_get_volume_size(sb);
+				if (*newLVSize == 0)
+					printk(KERN_ERR
+					 "JFS: Cannot determine volume size\n");
+			} else
+				*newLVSize = simple_strtoull(value, &value, 0);
+
+			/* Silently ignore the quota options */
+		} else if (!strcmp(this_char, "grpquota")
+			   || !strcmp(this_char, "noquota")
+			   || !strcmp(this_char, "quota")
+			   || !strcmp(this_char, "usrquota"))
+			/* Don't do anything ;-) */ ;
+		else {
+			printk("jfs: Unrecognized mount option %s\n",
+			       this_char);
+			goto cleanup;
+		}
+	}
+	if (nls_map != (void *) -1) {
+		/* Discard old (if remount) */
+		if (sbi->nls_tab && sbi->nls_tab != (void *) -1)
+			unload_nls(sbi->nls_tab);
+		sbi->nls_tab = nls_map;
+	}
+	return 1;
+needs_arg:
+	printk(KERN_ERR "JFS: %s needs an argument\n", this_char);
+cleanup:
+	if (nls_map && nls_map != (void *) -1)
+		unload_nls(nls_map);
+	return 0;
+}
+
+static int jfs_remount(struct super_block *sb, int *flags, char *data)
+{
+	s64 newLVSize = 0;
+	int rc = 0;
+	int flag = JFS_SBI(sb)->flag;
+
+	if (!parse_options(data, sb, &newLVSize, &flag)) {
+		return -EINVAL;
+	}
+	if (newLVSize) {
+		if (sb->s_flags & MS_RDONLY) {
+			printk(KERN_ERR
+		  "JFS: resize requires volume to be mounted read-write\n");
+			return -EROFS;
+		}
+		rc = jfs_extendfs(sb, newLVSize, 0);
+		if (rc)
+			return rc;
+	}
+
+	if ((sb->s_flags & MS_RDONLY) && !(*flags & MS_RDONLY)) {
+		JFS_SBI(sb)->flag = flag;
+		return jfs_mount_rw(sb, 1);
+	}
+	if ((!(sb->s_flags & MS_RDONLY)) && (*flags & MS_RDONLY)) {
+		rc = jfs_umount_rw(sb);
+		JFS_SBI(sb)->flag = flag;
+		return rc;
+	}
+	if ((JFS_SBI(sb)->flag & JFS_NOINTEGRITY) != (flag & JFS_NOINTEGRITY))
+		if (!(sb->s_flags & MS_RDONLY)) {
+			rc = jfs_umount_rw(sb);
+			if (rc)
+				return rc;
+			JFS_SBI(sb)->flag = flag;
+			return jfs_mount_rw(sb, 1);
+		}
+	JFS_SBI(sb)->flag = flag;
+
+	return 0;
+}
+
+static struct super_block *jfs_read_super(struct super_block *sb,
+					  void *data, int silent)
+{
+	struct jfs_sb_info *sbi;
+	struct inode *inode;
+	int rc;
+	s64 newLVSize = 0;
+	int flag;
+
+	jfs_info("In jfs_read_super s_dev=0x%x s_flags=0x%lx", sb->s_dev,
+		 sb->s_flags);
+
+	sbi = kmalloc(sizeof (struct jfs_sb_info), GFP_KERNEL);
+	if (!sbi)
+		return NULL;
+	memset(sbi, 0, sizeof (struct jfs_sb_info));
+	sb->u.generic_sbp = sbi;
+
+	/* initialize the mount flag and determine the default error handler */
+	flag = JFS_ERR_REMOUNT_RO;
+
+	/* nls_tab will be set to NULL if no character mapping is requested */
+	sbi->nls_tab = (void *) -1;
+	if (!parse_options((char *) data, sb, &newLVSize, &flag)) {
+		kfree(sbi);
+		return NULL;
+	}
+	sbi->flag = flag;
+
+	if (newLVSize) {
+		printk(KERN_ERR "resize option for remount only\n");
+		return NULL;
+	}
+
+	/*
+	 * Initialize blocksize to 4K.
+	 */
+	sb_set_blocksize(sb, PSIZE);
+
+	/*
+	 * Set method vectors.
+	 */
+	sb->s_op = &jfs_super_operations;
+
+	rc = jfs_mount(sb);
+	if (rc) {
+		if (!silent) {
+			jfs_err("jfs_mount failed w/return code = %d", rc);
+		}
+		goto out_kfree;
+	}
+	if (sb->s_flags & MS_RDONLY)
+		sbi->log = 0;
+	else {
+		rc = jfs_mount_rw(sb, 0);
+		if (rc) {
+			if (!silent) {
+				jfs_err("jfs_mount_rw failed, return code = %d",
+					rc);
+			}
+			goto out_no_rw;
+		}
+	}
+
+	sb->s_magic = JFS_SUPER_MAGIC;
+
+	inode = iget(sb, ROOT_I);
+	if (!inode || is_bad_inode(inode))
+		goto out_no_root;
+	sb->s_root = d_alloc_root(inode);
+	if (!sb->s_root)
+		goto out_no_root;
+
+	if (sbi->nls_tab == (void *) -1)
+		sbi->nls_tab = load_nls_default();
+
+	/* logical blocks are represented by 40 bits in pxd_t, etc. */
+	sb->s_maxbytes = ((u64) sb->s_blocksize) << 40;
+#if BITS_PER_LONG == 32
+	/*
+	 * Page cache is indexed by long.
+	 * I would use MAX_LFS_FILESIZE, but it's only half as big
+	 */
+	sb->s_maxbytes = min(((u64) PAGE_CACHE_SIZE << 32) - 1, sb->s_maxbytes);
+#endif
+
+	return sb;
+
+out_no_root:
+	jfs_err("jfs_read_super: get root inode failed");
+	if (inode)
+		iput(inode);
+
+out_no_rw:
+	rc = jfs_umount(sb);
+	if (rc) {
+		jfs_err("jfs_umount failed with return code %d", rc);
+	}
+out_kfree:
+	if (sbi->nls_tab && sbi->nls_tab != (void *) -1)
+		unload_nls(sbi->nls_tab);
+	kfree(sbi);
+	return NULL;
+}
+
+static void jfs_write_super_lockfs(struct super_block *sb)
+{
+	struct jfs_sb_info *sbi = JFS_SBI(sb);
+	struct jfs_log *log = sbi->log;
+
+	if (!(sb->s_flags & MS_RDONLY)) {
+		txQuiesce(sb);
+		lmLogShutdown(log);
+		updateSuper(sb, FM_CLEAN);
+	}
+}
+
+static void jfs_unlockfs(struct super_block *sb)
+{
+	struct jfs_sb_info *sbi = JFS_SBI(sb);
+	struct jfs_log *log = sbi->log;
+	int rc = 0;
+
+	if (!(sb->s_flags & MS_RDONLY)) {
+		updateSuper(sb, FM_MOUNT);
+		if ((rc = lmLogInit(log)))
+			jfs_err("jfs_unlock failed with return code %d", rc);
+		else
+			txResume(sb);
+	}
+}
+
+
+static int jfs_sync_fs(struct super_block *sb)
+{
+	struct jfs_log *log = JFS_SBI(sb)->log;
+
+	/* log == NULL indicates read-only mount */
+	if (log)
+		jfs_flush_journal(log, 1);
+
+	return 0;
+}
+
+static struct super_operations jfs_super_operations = {
+	.read_inode	= jfs_read_inode,
+	.dirty_inode	= jfs_dirty_inode,
+	.write_inode	= jfs_write_inode,
+	.clear_inode	= jfs_clear_inode,
+	.delete_inode	= jfs_delete_inode,
+	.put_super	= jfs_put_super,
+	.sync_fs	= jfs_sync_fs,
+	.write_super_lockfs = jfs_write_super_lockfs,
+	.unlockfs       = jfs_unlockfs,
+	.statfs		= jfs_statfs,
+	.remount_fs	= jfs_remount,
+};
+
+static struct file_system_type jfs_fs_type = {
+	.owner		= THIS_MODULE,
+	.name		= "jfs",
+	.read_super	= jfs_read_super,
+	.fs_flags	= FS_REQUIRES_DEV,
+};
+
+extern int metapage_init(void);
+extern int txInit(void);
+extern void txExit(void);
+extern void metapage_exit(void);
+
+static void init_once(void *foo, kmem_cache_t * cachep, unsigned long flags)
+{
+	struct jfs_inode_info *jfs_ip = (struct jfs_inode_info *) foo;
+
+	if ((flags & (SLAB_CTOR_VERIFY | SLAB_CTOR_CONSTRUCTOR)) ==
+	    SLAB_CTOR_CONSTRUCTOR) {
+		memset(jfs_ip, 0, sizeof(struct jfs_inode_info));
+		INIT_LIST_HEAD(&jfs_ip->anon_inode_list);
+		init_rwsem(&jfs_ip->rdwrlock);
+		init_MUTEX(&jfs_ip->commit_sem);
+		spin_lock_init(&jfs_ip->ag_lock);
+		jfs_ip->active_ag = -1;
+	}
+}
+
+static int __init init_jfs_fs(void)
+{
+	int rc;
+
+	jfs_inode_cachep =
+	    kmem_cache_create("jfs_ip", sizeof (struct jfs_inode_info), 0, 0,
+			      init_once, NULL);
+	if (jfs_inode_cachep == NULL)
+		return -ENOMEM;
+
+	/*
+	 * Metapage initialization
+	 */
+	rc = metapage_init();
+	if (rc) {
+		jfs_err("metapage_init failed w/rc = %d", rc);
+		goto free_slab;
+	}
+
+	/*
+	 * Transaction Manager initialization
+	 */
+	rc = txInit();
+	if (rc) {
+		jfs_err("txInit failed w/rc = %d", rc);
+		goto free_metapage;
+	}
+
+	/*
+	 * I/O completion thread (endio)
+	 */
+	jfsIOthread = kernel_thread(jfsIOWait, 0,
+				    CLONE_FS | CLONE_FILES | CLONE_SIGHAND);
+	if (jfsIOthread < 0) {
+		jfs_err("init_jfs_fs: fork failed w/rc = %d", jfsIOthread);
+		goto end_txmngr;
+	}
+	wait_for_completion(&jfsIOwait);	/* Wait until thread starts */
+
+	jfsCommitThread = kernel_thread(jfs_lazycommit, 0,
+					CLONE_FS | CLONE_FILES | CLONE_SIGHAND);
+	if (jfsCommitThread < 0) {
+		jfs_err("init_jfs_fs: fork failed w/rc = %d", jfsCommitThread);
+		goto kill_iotask;
+	}
+	wait_for_completion(&jfsIOwait);	/* Wait until thread starts */
+
+	jfsSyncThread = kernel_thread(jfs_sync, 0,
+				      CLONE_FS | CLONE_FILES | CLONE_SIGHAND);
+	if (jfsSyncThread < 0) {
+		jfs_err("init_jfs_fs: fork failed w/rc = %d", jfsSyncThread);
+		goto kill_committask;
+	}
+	wait_for_completion(&jfsIOwait);	/* Wait until thread starts */
+
+#ifdef PROC_FS_JFS
+	jfs_proc_init();
+#endif
+
+	return register_filesystem(&jfs_fs_type);
+
+kill_committask:
+	jfs_stop_threads = 1;
+	wake_up(&jfs_commit_thread_wait);
+	wait_for_completion(&jfsIOwait);	/* Wait for thread exit */
+kill_iotask:
+	jfs_stop_threads = 1;
+	wake_up(&jfs_IO_thread_wait);
+	wait_for_completion(&jfsIOwait);	/* Wait for thread exit */
+end_txmngr:
+	txExit();
+free_metapage:
+	metapage_exit();
+free_slab:
+	kmem_cache_destroy(jfs_inode_cachep);
+	return rc;
+}
+
+static void __exit exit_jfs_fs(void)
+{
+	jfs_info("exit_jfs_fs called");
+
+	jfs_stop_threads = 1;
+	txExit();
+	metapage_exit();
+	wake_up(&jfs_IO_thread_wait);
+	wait_for_completion(&jfsIOwait);	/* Wait for IO thread exit */
+	wake_up(&jfs_commit_thread_wait);
+	wait_for_completion(&jfsIOwait);	/* Wait for Commit thread exit */
+	wake_up(&jfs_sync_thread_wait);
+	wait_for_completion(&jfsIOwait);	/* Wait for Sync thread exit */
+#ifdef PROC_FS_JFS
+	jfs_proc_clean();
+#endif
+	unregister_filesystem(&jfs_fs_type);
+	kmem_cache_destroy(jfs_inode_cachep);
+}
+
+EXPORT_NO_SYMBOLS;
+
+module_init(init_jfs_fs)
+module_exit(exit_jfs_fs)
diff --git a/fs/jfs/symlink.c b/fs/jfs/symlink.c
new file mode 100644
index 00000000000000..749a68d9f7434e
--- /dev/null
+++ b/fs/jfs/symlink.c
@@ -0,0 +1,43 @@
+/*
+ *   Copyright (c) Christoph Hellwig, 2001-2002
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/fs.h>
+#include "jfs_incore.h"
+#include "jfs_xattr.h"
+
+static int jfs_follow_link(struct dentry *dentry, struct nameidata *nd)
+{
+	char *s = JFS_IP(dentry->d_inode)->i_inline;
+	return vfs_follow_link(nd, s);
+}
+
+static int jfs_readlink(struct dentry *dentry, char *buffer, int buflen)
+{
+	char *s = JFS_IP(dentry->d_inode)->i_inline;
+	return vfs_readlink(dentry, buffer, buflen, s);
+}
+
+struct inode_operations jfs_symlink_inode_operations = {
+	.readlink	= jfs_readlink,
+	.follow_link	= jfs_follow_link,
+	.setxattr	= jfs_setxattr,
+	.getxattr	= jfs_getxattr,
+	.listxattr	= jfs_listxattr,
+	.removexattr	= jfs_removexattr,
+};
+
diff --git a/fs/jfs/xattr.c b/fs/jfs/xattr.c
new file mode 100644
index 00000000000000..aff116c6457522
--- /dev/null
+++ b/fs/jfs/xattr.c
@@ -0,0 +1,947 @@
+/*
+ *   Copyright (C) International Business Machines  Corp., 2000-2003
+ *   Copyright (C) Christoph Hellwig, 2002
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/fs.h>
+#include <linux/xattr.h>
+#include "jfs_incore.h"
+#include "jfs_superblock.h"
+#include "jfs_dmap.h"
+#include "jfs_debug.h"
+#include "jfs_dinode.h"
+#include "jfs_extent.h"
+#include "jfs_metapage.h"
+#include "jfs_xattr.h"
+
+/*
+ *	jfs_xattr.c: extended attribute service
+ *
+ * Overall design --
+ *
+ * Format:
+ *
+ *   Extended attribute lists (jfs_ea_list) consist of an overall size (32 bit
+ *   value) and a variable (0 or more) number of extended attribute
+ *   entries.  Each extended attribute entry (jfs_ea) is a <name,value> double
+ *   where <name> is constructed from a null-terminated ascii string
+ *   (1 ... 255 bytes in the name) and <value> is arbitrary 8 bit data
+ *   (1 ... 65535 bytes).  The in-memory format is
+ *
+ *   0       1        2        4                4 + namelen + 1
+ *   +-------+--------+--------+----------------+-------------------+
+ *   | Flags | Name   | Value  | Name String \0 | Data . . . .      |
+ *   |       | Length | Length |                |                   |
+ *   +-------+--------+--------+----------------+-------------------+
+ *
+ *   A jfs_ea_list then is structured as
+ *
+ *   0            4                   4 + EA_SIZE(ea1)
+ *   +------------+-------------------+--------------------+-----
+ *   | Overall EA | First FEA Element | Second FEA Element | ..... 
+ *   | List Size  |                   |                    |
+ *   +------------+-------------------+--------------------+-----
+ *
+ *   On-disk:
+ *
+ *     FEALISTs are stored on disk using blocks allocated by dbAlloc() and
+ *     written directly. An EA list may be in-lined in the inode if there is
+ *     sufficient room available.
+ */
+
+struct ea_buffer {
+	int flag;		/* Indicates what storage xattr points to */
+	int max_size;		/* largest xattr that fits in current buffer */
+	dxd_t new_ea;		/* dxd to replace ea when modifying xattr */
+	struct metapage *mp;	/* metapage containing ea list */
+	struct jfs_ea_list *xattr;	/* buffer containing ea list */
+};
+
+/*
+ * ea_buffer.flag values
+ */
+#define EA_INLINE	0x0001
+#define EA_EXTENT	0x0002
+#define EA_NEW		0x0004
+#define EA_MALLOC	0x0008
+
+/* Namespaces */
+#define XATTR_SYSTEM_PREFIX "system."
+#define XATTR_SYSTEM_PREFIX_LEN (sizeof (XATTR_SYSTEM_PREFIX) - 1)
+
+#define XATTR_USER_PREFIX "user."
+#define XATTR_USER_PREFIX_LEN (sizeof (XATTR_USER_PREFIX) - 1)
+
+#define XATTR_OS2_PREFIX "os2."
+#define XATTR_OS2_PREFIX_LEN (sizeof (XATTR_OS2_PREFIX) - 1)
+
+/*
+ * These three routines are used to recognize on-disk extended attributes
+ * that are in a recognized namespace.  If the attribute is not recognized,
+ * "os2." is prepended to the name
+ */
+static inline int is_os2_xattr(struct jfs_ea *ea)
+{
+	/*
+	 * Check for "system."
+	 */
+	if ((ea->namelen >= XATTR_SYSTEM_PREFIX_LEN) &&
+	    !strncmp(ea->name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN))
+		return FALSE;
+	/*
+	 * Check for "user."
+	 */
+	if ((ea->namelen >= XATTR_USER_PREFIX_LEN) &&
+	    !strncmp(ea->name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN))
+		return FALSE;
+	/*
+	 * Add any other valid namespace prefixes here
+	 */
+
+	/*
+	 * We assume it's OS/2's flat namespace
+	 */
+	return TRUE;
+}
+
+static inline int name_size(struct jfs_ea *ea)
+{
+	if (is_os2_xattr(ea))
+		return ea->namelen + XATTR_OS2_PREFIX_LEN;
+	else
+		return ea->namelen;
+}
+
+static inline int copy_name(char *buffer, struct jfs_ea *ea)
+{
+	int len = ea->namelen;
+
+	if (is_os2_xattr(ea)) {
+		memcpy(buffer, XATTR_OS2_PREFIX, XATTR_OS2_PREFIX_LEN);
+		buffer += XATTR_OS2_PREFIX_LEN;
+		len += XATTR_OS2_PREFIX_LEN;
+	}
+	memcpy(buffer, ea->name, ea->namelen);
+	buffer[ea->namelen] = 0;
+
+	return len;
+}
+
+/* Forward references */
+static void ea_release(struct inode *inode, struct ea_buffer *ea_buf);
+
+/*
+ * NAME: ea_write_inline
+ *                                                                    
+ * FUNCTION: Attempt to write an EA inline if area is available
+ *                                                                    
+ * PRE CONDITIONS:
+ *	Already verified that the specified EA is small enough to fit inline
+ *
+ * PARAMETERS:
+ *	ip	- Inode pointer
+ *	ealist	- EA list pointer
+ *	size	- size of ealist in bytes
+ *	ea	- dxd_t structure to be filled in with necessary EA information
+ *		  if we successfully copy the EA inline
+ *
+ * NOTES:
+ *	Checks if the inode's inline area is available.  If so, copies EA inline
+ *	and sets <ea> fields appropriately.  Otherwise, returns failure, EA will
+ *	have to be put into an extent.
+ *
+ * RETURNS: 0 for successful copy to inline area; -1 if area not available
+ */
+static int ea_write_inline(struct inode *ip, struct jfs_ea_list *ealist,
+			   int size, dxd_t * ea)
+{
+	struct jfs_inode_info *ji = JFS_IP(ip);
+
+	/*
+	 * Make sure we have an EA -- the NULL EA list is valid, but you
+	 * can't copy it!
+	 */
+	if (ealist && size > sizeof (struct jfs_ea_list)) {
+		assert(size <= sizeof (ji->i_inline_ea));
+
+		/*
+		 * See if the space is available or if it is already being
+		 * used for an inline EA.
+		 */
+		if (!(ji->mode2 & INLINEEA) && !(ji->ea.flag & DXD_INLINE))
+			return -EPERM;
+
+		DXDsize(ea, size);
+		DXDlength(ea, 0);
+		DXDaddress(ea, 0);
+		memcpy(ji->i_inline_ea, ealist, size);
+		ea->flag = DXD_INLINE;
+		ji->mode2 &= ~INLINEEA;
+	} else {
+		ea->flag = 0;
+		DXDsize(ea, 0);
+		DXDlength(ea, 0);
+		DXDaddress(ea, 0);
+
+		/* Free up INLINE area */
+		if (ji->ea.flag & DXD_INLINE)
+			ji->mode2 |= INLINEEA;
+	}
+
+	mark_inode_dirty(ip);
+	return 0;
+}
+
+/*
+ * NAME: ea_write
+ *                                                                    
+ * FUNCTION: Write an EA for an inode
+ *                                                                    
+ * PRE CONDITIONS: EA has been verified 
+ *
+ * PARAMETERS:
+ *	ip	- Inode pointer
+ *	ealist	- EA list pointer
+ *	size	- size of ealist in bytes
+ *	ea	- dxd_t structure to be filled in appropriately with where the
+ *		  EA was copied
+ *
+ * NOTES: Will write EA inline if able to, otherwise allocates blocks for an
+ *	extent and synchronously writes it to those blocks.
+ *
+ * RETURNS: 0 for success; Anything else indicates failure
+ */
+static int ea_write(struct inode *ip, struct jfs_ea_list *ealist, int size,
+		       dxd_t * ea)
+{
+	struct super_block *sb = ip->i_sb;
+	struct jfs_inode_info *ji = JFS_IP(ip);
+	struct jfs_sb_info *sbi = JFS_SBI(sb);
+	int nblocks;
+	s64 blkno;
+	int rc = 0, i;
+	char *cp;
+	s32 nbytes, nb;
+	s32 bytes_to_write;
+	struct metapage *mp;
+
+	/*
+	 * Quick check to see if this is an in-linable EA.  Short EAs
+	 * and empty EAs are all in-linable, provided the space exists.
+	 */
+	if (!ealist || size <= sizeof (ji->i_inline_ea)) {
+		if (!ea_write_inline(ip, ealist, size, ea))
+			return 0;
+	}
+
+	/* figure out how many blocks we need */
+	nblocks = (size + (sb->s_blocksize - 1)) >> sb->s_blocksize_bits;
+
+	rc = dbAlloc(ip, INOHINT(ip), nblocks, &blkno);
+	if (rc)
+		return rc;
+
+	/*
+	 * Now have nblocks worth of storage to stuff into the FEALIST.
+	 * loop over the FEALIST copying data into the buffer one page at
+	 * a time.
+	 */
+	cp = (char *) ealist;
+	nbytes = size;
+	for (i = 0; i < nblocks; i += sbi->nbperpage) {
+		/*
+		 * Determine how many bytes for this request, and round up to
+		 * the nearest aggregate block size
+		 */
+		nb = min(PSIZE, nbytes);
+		bytes_to_write =
+		    ((((nb + sb->s_blocksize - 1)) >> sb->s_blocksize_bits))
+		    << sb->s_blocksize_bits;
+
+		if (!(mp = get_metapage(ip, blkno + i, bytes_to_write, 1))) {
+			rc = -EIO;
+			goto failed;
+		}
+
+		memcpy(mp->data, cp, nb);
+
+		/*
+		 * We really need a way to propagate errors for
+		 * forced writes like this one.  --hch
+		 *
+		 * (__write_metapage => release_metapage => flush_metapage)
+		 */
+#ifdef _JFS_FIXME
+		if ((rc = flush_metapage(mp))) {
+			/*
+			 * the write failed -- this means that the buffer
+			 * is still assigned and the blocks are not being
+			 * used.  this seems like the best error recovery
+			 * we can get ...
+			 */
+			goto failed;
+		}
+#else
+		flush_metapage(mp);
+#endif
+
+		cp += PSIZE;
+		nbytes -= nb;
+	}
+
+	ea->flag = DXD_EXTENT;
+	DXDsize(ea, le32_to_cpu(ealist->size));
+	DXDlength(ea, nblocks);
+	DXDaddress(ea, blkno);
+
+	/* Free up INLINE area */
+	if (ji->ea.flag & DXD_INLINE)
+		ji->mode2 |= INLINEEA;
+
+	return 0;
+
+      failed:
+	dbFree(ip, blkno, nblocks);
+	return rc;
+}
+
+/*
+ * NAME: ea_read_inline
+ *                                                                    
+ * FUNCTION: Read an inlined EA into user's buffer
+ *                                                                    
+ * PARAMETERS:
+ *	ip	- Inode pointer
+ *	ealist	- Pointer to buffer to fill in with EA
+ *
+ * RETURNS: 0
+ */
+static int ea_read_inline(struct inode *ip, struct jfs_ea_list *ealist)
+{
+	struct jfs_inode_info *ji = JFS_IP(ip);
+	int ea_size = sizeDXD(&ji->ea);
+
+	if (ea_size == 0) {
+		ealist->size = 0;
+		return 0;
+	}
+
+	/* Sanity Check */
+	if ((sizeDXD(&ji->ea) > sizeof (ji->i_inline_ea)))
+		return -EIO;
+	if (le32_to_cpu(((struct jfs_ea_list *) &ji->i_inline_ea)->size)
+	    != ea_size)
+		return -EIO;
+
+	memcpy(ealist, ji->i_inline_ea, ea_size);
+	return 0;
+}
+
+/*
+ * NAME: ea_read
+ *                                                                    
+ * FUNCTION: copy EA data into user's buffer
+ *                                                                    
+ * PARAMETERS:
+ *	ip	- Inode pointer
+ *	ealist	- Pointer to buffer to fill in with EA
+ *
+ * NOTES:  If EA is inline calls ea_read_inline() to copy EA.
+ *
+ * RETURNS: 0 for success; other indicates failure
+ */
+static int ea_read(struct inode *ip, struct jfs_ea_list *ealist)
+{
+	struct super_block *sb = ip->i_sb;
+	struct jfs_inode_info *ji = JFS_IP(ip);
+	struct jfs_sb_info *sbi = JFS_SBI(sb);
+	int nblocks;
+	s64 blkno;
+	char *cp = (char *) ealist;
+	int i;
+	int nbytes, nb;
+	s32 bytes_to_read;
+	struct metapage *mp;
+
+	/* quick check for in-line EA */
+	if (ji->ea.flag & DXD_INLINE)
+		return ea_read_inline(ip, ealist);
+
+	nbytes = sizeDXD(&ji->ea);
+	if (!nbytes) {
+		jfs_error(sb, "ea_read: nbytes is 0");
+		return -EIO;
+	}
+
+	/* 
+	 * Figure out how many blocks were allocated when this EA list was
+	 * originally written to disk.
+	 */
+	nblocks = lengthDXD(&ji->ea) << sbi->l2nbperpage;
+	blkno = addressDXD(&ji->ea) << sbi->l2nbperpage;
+
+	/*
+	 * I have found the disk blocks which were originally used to store
+	 * the FEALIST.  now i loop over each contiguous block copying the
+	 * data into the buffer.
+	 */
+	for (i = 0; i < nblocks; i += sbi->nbperpage) {
+		/*
+		 * Determine how many bytes for this request, and round up to
+		 * the nearest aggregate block size
+		 */
+		nb = min(PSIZE, nbytes);
+		bytes_to_read =
+		    ((((nb + sb->s_blocksize - 1)) >> sb->s_blocksize_bits))
+		    << sb->s_blocksize_bits;
+
+		if (!(mp = read_metapage(ip, blkno + i, bytes_to_read, 1)))
+			return -EIO;
+
+		memcpy(cp, mp->data, nb);
+		release_metapage(mp);
+
+		cp += PSIZE;
+		nbytes -= nb;
+	}
+
+	return 0;
+}
+
+/*
+ * NAME: ea_get
+ *                                                                    
+ * FUNCTION: Returns buffer containing existing extended attributes.
+ *	     The size of the buffer will be the larger of the existing
+ *	     attributes size, or min_size.
+ *
+ *	     The buffer, which may be inlined in the inode or in the
+ * 	     page cache must be release by calling ea_release or ea_put
+ *                                                                    
+ * PARAMETERS:
+ *	inode	- Inode pointer
+ *	ea_buf	- Structure to be populated with ealist and its metadata
+ *	min_size- minimum size of buffer to be returned
+ *
+ * RETURNS: 0 for success; Other indicates failure
+ */
+static int ea_get(struct inode *inode, struct ea_buffer *ea_buf, int min_size)
+{
+	struct jfs_inode_info *ji = JFS_IP(inode);
+	struct super_block *sb = inode->i_sb;
+	int size;
+	int ea_size = sizeDXD(&ji->ea);
+	int blocks_needed, current_blocks;
+	s64 blkno;
+	int rc;
+
+	/* When fsck.jfs clears a bad ea, it doesn't clear the size */
+	if (ji->ea.flag == 0)
+		ea_size = 0;
+
+	if (ea_size == 0) {
+		if (min_size == 0) {
+			ea_buf->flag = 0;
+			ea_buf->max_size = 0;
+			ea_buf->xattr = NULL;
+			return 0;
+		}
+		if ((min_size <= sizeof (ji->i_inline_ea)) &&
+		    (ji->mode2 & INLINEEA)) {
+			ea_buf->flag = EA_INLINE | EA_NEW;
+			ea_buf->max_size = sizeof (ji->i_inline_ea);
+			ea_buf->xattr = (struct jfs_ea_list *) ji->i_inline_ea;
+			DXDlength(&ea_buf->new_ea, 0);
+			DXDaddress(&ea_buf->new_ea, 0);
+			ea_buf->new_ea.flag = DXD_INLINE;
+			DXDsize(&ea_buf->new_ea, min_size);
+			return 0;
+		}
+		current_blocks = 0;
+	} else if (ji->ea.flag & DXD_INLINE) {
+		if (min_size <= sizeof (ji->i_inline_ea)) {
+			ea_buf->flag = EA_INLINE;
+			ea_buf->max_size = sizeof (ji->i_inline_ea);
+			ea_buf->xattr = (struct jfs_ea_list *) ji->i_inline_ea;
+			goto size_check;
+		}
+		current_blocks = 0;
+	} else {
+		if (!(ji->ea.flag & DXD_EXTENT)) {
+			jfs_error(sb, "ea_get: invalid ea.flag)");
+			return -EIO;
+		}
+		current_blocks = (ea_size + sb->s_blocksize - 1) >>
+		    sb->s_blocksize_bits;
+	}
+	size = max(min_size, ea_size);
+
+	if (size > PSIZE) {
+		/*
+		 * To keep the rest of the code simple.  Allocate a
+		 * contiguous buffer to work with
+		 */
+		ea_buf->xattr = kmalloc(size, GFP_KERNEL);
+		if (ea_buf->xattr == NULL)
+			return -ENOMEM;
+
+		ea_buf->flag = EA_MALLOC;
+		ea_buf->max_size = (size + sb->s_blocksize - 1) &
+		    ~(sb->s_blocksize - 1);
+
+		if (ea_size == 0)
+			return 0;
+
+		if ((rc = ea_read(inode, ea_buf->xattr))) {
+			kfree(ea_buf->xattr);
+			ea_buf->xattr = NULL;
+			return rc;
+		}
+		goto size_check;
+	}
+	blocks_needed = (min_size + sb->s_blocksize - 1) >>
+	    sb->s_blocksize_bits;
+
+	if (blocks_needed > current_blocks) {
+		rc = dbAlloc(inode, INOHINT(inode), (s64) blocks_needed,
+			     &blkno);
+		if (rc)
+			return rc;
+
+		DXDlength(&ea_buf->new_ea, blocks_needed);
+		DXDaddress(&ea_buf->new_ea, blkno);
+		ea_buf->new_ea.flag = DXD_EXTENT;
+		DXDsize(&ea_buf->new_ea, min_size);
+
+		ea_buf->flag = EA_EXTENT | EA_NEW;
+
+		ea_buf->mp = get_metapage(inode, blkno,
+					  blocks_needed << sb->s_blocksize_bits,
+					  1);
+		if (ea_buf->mp == NULL) {
+			dbFree(inode, blkno, (s64) blocks_needed);
+			return -EIO;
+		}
+		ea_buf->xattr = ea_buf->mp->data;
+		ea_buf->max_size = (min_size + sb->s_blocksize - 1) &
+		    ~(sb->s_blocksize - 1);
+		if (ea_size == 0)
+			return 0;
+		if ((rc = ea_read(inode, ea_buf->xattr))) {
+			discard_metapage(ea_buf->mp);
+			dbFree(inode, blkno, (s64) blocks_needed);
+			return rc;
+		}
+		goto size_check;
+	}
+	ea_buf->flag = EA_EXTENT;
+	ea_buf->mp = read_metapage(inode, addressDXD(&ji->ea),
+				   lengthDXD(&ji->ea) << sb->s_blocksize_bits,
+				   1);
+	if (ea_buf->mp == NULL)
+		return -EIO;
+	ea_buf->xattr = ea_buf->mp->data;
+	ea_buf->max_size = (ea_size + sb->s_blocksize - 1) &
+	    ~(sb->s_blocksize - 1);
+
+      size_check:
+	if (EALIST_SIZE(ea_buf->xattr) != ea_size) {
+		printk(KERN_ERR "ea_get: invalid extended attribute\n");
+		dump_mem("xattr", ea_buf->xattr, ea_size);
+		ea_release(inode, ea_buf);
+		return -EIO;
+	}
+
+	return ea_size;
+}
+
+static void ea_release(struct inode *inode, struct ea_buffer *ea_buf)
+{
+	if (ea_buf->flag & EA_MALLOC)
+		kfree(ea_buf->xattr);
+	else if (ea_buf->flag & EA_EXTENT) {
+		assert(ea_buf->mp);
+		release_metapage(ea_buf->mp);
+
+		if (ea_buf->flag & EA_NEW)
+			dbFree(inode, addressDXD(&ea_buf->new_ea),
+			       lengthDXD(&ea_buf->new_ea));
+	}
+}
+
+static int ea_put(struct inode *inode, struct ea_buffer *ea_buf, int new_size)
+{
+	struct jfs_inode_info *ji = JFS_IP(inode);
+	unsigned long old_blocks, new_blocks;
+	int rc = 0;
+	tid_t tid;
+
+	if (new_size == 0) {
+		ea_release(inode, ea_buf);
+		ea_buf = 0;
+	} else if (ea_buf->flag & EA_INLINE) {
+		assert(new_size <= sizeof (ji->i_inline_ea));
+		ji->mode2 &= ~INLINEEA;
+		ea_buf->new_ea.flag = DXD_INLINE;
+		DXDsize(&ea_buf->new_ea, new_size);
+		DXDaddress(&ea_buf->new_ea, 0);
+		DXDlength(&ea_buf->new_ea, 0);
+	} else if (ea_buf->flag & EA_MALLOC) {
+		rc = ea_write(inode, ea_buf->xattr, new_size, &ea_buf->new_ea);
+		kfree(ea_buf->xattr);
+	} else if (ea_buf->flag & EA_NEW) {
+		/* We have already allocated a new dxd */
+		flush_metapage(ea_buf->mp);
+	} else {
+		/* ->xattr must point to original ea's metapage */
+		rc = ea_write(inode, ea_buf->xattr, new_size, &ea_buf->new_ea);
+		discard_metapage(ea_buf->mp);
+	}
+	if (rc)
+		return rc;
+
+	tid = txBegin(inode->i_sb, 0);
+	down(&ji->commit_sem);
+
+	old_blocks = new_blocks = 0;
+
+	if (ji->ea.flag & DXD_EXTENT) {
+		invalidate_dxd_metapages(inode, ji->ea);
+		old_blocks = lengthDXD(&ji->ea);
+	}
+
+	if (ea_buf) {
+		txEA(tid, inode, &ji->ea, &ea_buf->new_ea);
+		if (ea_buf->new_ea.flag & DXD_EXTENT) {
+			new_blocks = lengthDXD(&ea_buf->new_ea);
+			if (ji->ea.flag & DXD_INLINE)
+				ji->mode2 |= INLINEEA;
+		}
+		ji->ea = ea_buf->new_ea;
+	} else {
+		txEA(tid, inode, &ji->ea, 0);
+		if (ji->ea.flag & DXD_INLINE)
+			ji->mode2 |= INLINEEA;
+		ji->ea.flag = 0;
+		ji->ea.size = 0;
+	}
+
+	inode->i_blocks += LBLK2PBLK(inode->i_sb, new_blocks - old_blocks);
+	rc = txCommit(tid, 1, &inode, 0);
+	txEnd(tid);
+	up(&ji->commit_sem);
+
+	return rc;
+}
+
+static int can_set_xattr(struct inode *inode, const char *name,
+			 void *value, size_t value_len)
+{
+	if (IS_RDONLY(inode))
+		return -EROFS;
+
+	if (IS_IMMUTABLE(inode) || IS_APPEND(inode) || S_ISLNK(inode->i_mode))
+		return -EPERM;
+
+	if((strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN) != 0) &&
+	   (strncmp(name, XATTR_OS2_PREFIX, XATTR_OS2_PREFIX_LEN) != 0))
+		return -EOPNOTSUPP;
+
+	if (!S_ISREG(inode->i_mode) &&
+	    (!S_ISDIR(inode->i_mode) || inode->i_mode &S_ISVTX))
+		return -EPERM;
+
+	return permission(inode, MAY_WRITE);
+}
+
+int __jfs_setxattr(struct inode *inode, const char *name, void *value,
+		   size_t value_len, int flags)
+{
+	struct jfs_ea_list *ealist;
+	struct jfs_ea *ea, *old_ea = NULL, *next_ea = NULL;
+	struct ea_buffer ea_buf;
+	int old_ea_size = 0;
+	int xattr_size;
+	int new_size;
+	int namelen = strlen(name);
+	char *os2name = NULL;
+	int found = 0;
+	int rc;
+	int length;
+
+	if ((rc = can_set_xattr(inode, name, value, value_len)))
+		return rc;
+
+	if (strncmp(name, XATTR_OS2_PREFIX, XATTR_OS2_PREFIX_LEN) == 0) {
+		os2name = kmalloc(namelen - XATTR_OS2_PREFIX_LEN + 1,
+				  GFP_KERNEL);
+		if (!os2name)
+			return -ENOMEM;
+		strcpy(os2name, name + XATTR_OS2_PREFIX_LEN);
+		name = os2name;
+		namelen -= XATTR_OS2_PREFIX_LEN;
+	}
+
+	xattr_size = ea_get(inode, &ea_buf, 0);
+	if (xattr_size < 0) {
+		rc = xattr_size;
+		goto out;
+	}
+
+      again:
+	ealist = (struct jfs_ea_list *) ea_buf.xattr;
+	new_size = sizeof (struct jfs_ea_list);
+
+	if (xattr_size) {
+		for (ea = FIRST_EA(ealist); ea < END_EALIST(ealist);
+		     ea = NEXT_EA(ea)) {
+			if ((namelen == ea->namelen) &&
+			    (memcmp(name, ea->name, namelen) == 0)) {
+				found = 1;
+				if (flags & XATTR_CREATE) {
+					rc = -EEXIST;
+					goto release;
+				}
+				old_ea = ea;
+				old_ea_size = EA_SIZE(ea);
+				next_ea = NEXT_EA(ea);
+			} else
+				new_size += EA_SIZE(ea);
+		}
+	}
+
+	if (!found) {
+		if (flags & XATTR_REPLACE) {
+			rc = -ENODATA;
+			goto release;
+		}
+		if (value == NULL) {
+			rc = 0;
+			goto release;
+		}
+	}
+	if (value)
+		new_size += sizeof (struct jfs_ea) + namelen + 1 + value_len;
+
+	if (new_size > ea_buf.max_size) {
+		/*
+		 * We need to allocate more space for merged ea list.
+		 * We should only have loop to again: once.
+		 */
+		ea_release(inode, &ea_buf);
+		xattr_size = ea_get(inode, &ea_buf, new_size);
+		if (xattr_size < 0) {
+			rc = xattr_size;
+			goto out;
+		}
+		goto again;
+	}
+
+	/* Remove old ea of the same name */
+	if (found) {
+		/* number of bytes following target EA */
+		length = (char *) END_EALIST(ealist) - (char *) next_ea;
+		if (length > 0)
+			memmove(old_ea, next_ea, length);
+		xattr_size -= old_ea_size;
+	}
+
+	/* Add new entry to the end */
+	if (value) {
+		if (xattr_size == 0)
+			/* Completely new ea list */
+			xattr_size = sizeof (struct jfs_ea_list);
+
+		ea = (struct jfs_ea *) ((char *) ealist + xattr_size);
+		ea->flag = 0;
+		ea->namelen = namelen;
+		ea->valuelen = (cpu_to_le16(value_len));
+		memcpy(ea->name, name, namelen);
+		ea->name[namelen] = 0;
+		if (value_len)
+			memcpy(&ea->name[namelen + 1], value, value_len);
+		xattr_size += EA_SIZE(ea);
+	}
+
+	/* DEBUG - If we did this right, these number match */
+	if (xattr_size != new_size) {
+		printk(KERN_ERR
+		       "jfs_xsetattr: xattr_size = %d, new_size = %d\n",
+		       xattr_size, new_size);
+
+		rc = -EINVAL;
+		goto release;
+	}
+
+	/*
+	 * If we're left with an empty list, there's no ea
+	 */
+	if (new_size == sizeof (struct jfs_ea_list))
+		new_size = 0;
+
+	ealist->size = cpu_to_le32(new_size);
+
+	rc = ea_put(inode, &ea_buf, new_size);
+
+	goto out;
+      release:
+	ea_release(inode, &ea_buf);
+      out:
+	if (os2name)
+		kfree(os2name);
+
+	return rc;
+}
+
+int jfs_setxattr(struct dentry *dentry, const char *name, void *value,
+		 size_t value_len, int flags)
+{
+	if (value == NULL) {	/* empty EA, do not remove */
+		value = "";
+		value_len = 0;
+	}
+
+	return __jfs_setxattr(dentry->d_inode, name, value, value_len, flags);
+}
+
+static inline int can_get_xattr(struct inode *inode, const char *name)
+{
+	if(strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN) == 0)
+		return 0;
+	return permission(inode, MAY_READ);
+}
+
+ssize_t __jfs_getxattr(struct inode *inode, const char *name, void *data,
+		       size_t buf_size)
+{
+	struct jfs_ea_list *ealist;
+	struct jfs_ea *ea;
+	struct ea_buffer ea_buf;
+	int xattr_size;
+	ssize_t size;
+	int namelen = strlen(name);
+	char *os2name = NULL;
+	int rc;
+	char *value;
+
+	if ((rc = can_get_xattr(inode, name)))
+		return rc;
+
+	if (strncmp(name, XATTR_OS2_PREFIX, XATTR_OS2_PREFIX_LEN) == 0) {
+		os2name = kmalloc(namelen - XATTR_OS2_PREFIX_LEN + 1,
+				  GFP_KERNEL);
+		if (!os2name)
+			return -ENOMEM;
+		strcpy(os2name, name + XATTR_OS2_PREFIX_LEN);
+		name = os2name;
+		namelen -= XATTR_OS2_PREFIX_LEN;
+	}
+
+	xattr_size = ea_get(inode, &ea_buf, 0);
+	if (xattr_size < 0) {
+		size = xattr_size;
+		goto out;
+	}
+
+	if (xattr_size == 0)
+		goto not_found;
+
+	ealist = (struct jfs_ea_list *) ea_buf.xattr;
+
+	/* Find the named attribute */
+	for (ea = FIRST_EA(ealist); ea < END_EALIST(ealist); ea = NEXT_EA(ea))
+		if ((namelen == ea->namelen) &&
+		    memcmp(name, ea->name, namelen) == 0) {
+			/* Found it */
+			size = le16_to_cpu(ea->valuelen);
+			if (!data)
+				goto release;
+			else if (size > buf_size) {
+				size = -ERANGE;
+				goto release;
+			}
+			value = ((char *) &ea->name) + ea->namelen + 1;
+			memcpy(data, value, size);
+			goto release;
+		}
+      not_found:
+	size = -ENODATA;
+      release:
+	ea_release(inode, &ea_buf);
+      out:
+	if (os2name)
+		kfree(os2name);
+
+	return size;
+}
+
+ssize_t jfs_getxattr(struct dentry *dentry, const char *name, void *data,
+		     size_t buf_size)
+{
+	return __jfs_getxattr(dentry->d_inode, name, data, buf_size);
+}
+
+ssize_t jfs_listxattr(struct dentry * dentry, char *data, size_t buf_size)
+{
+	struct inode *inode = dentry->d_inode;
+	char *buffer;
+	ssize_t size = 0;
+	int xattr_size;
+	struct jfs_ea_list *ealist;
+	struct jfs_ea *ea;
+	struct ea_buffer ea_buf;
+
+	xattr_size = ea_get(inode, &ea_buf, 0);
+	if (xattr_size < 0) {
+		size = xattr_size;
+		goto out;
+	}
+
+	if (xattr_size == 0)
+		goto release;
+
+	ealist = (struct jfs_ea_list *) ea_buf.xattr;
+
+	/* compute required size of list */
+	for (ea = FIRST_EA(ealist); ea < END_EALIST(ealist); ea = NEXT_EA(ea))
+		size += name_size(ea) + 1;
+
+	if (!data)
+		goto release;
+
+	if (size > buf_size) {
+		size = -ERANGE;
+		goto release;
+	}
+
+	/* Copy attribute names to buffer */
+	buffer = data;
+	for (ea = FIRST_EA(ealist); ea < END_EALIST(ealist); ea = NEXT_EA(ea)) {
+		int namelen = copy_name(buffer, ea);
+		buffer += namelen + 1;
+	}
+
+      release:
+	ea_release(inode, &ea_buf);
+      out:
+	return size;
+}
+
+int jfs_removexattr(struct dentry *dentry, const char *name)
+{
+	return __jfs_setxattr(dentry->d_inode, name, 0, 0, XATTR_REPLACE);
+}
diff --git a/fs/lockd/Makefile b/fs/lockd/Makefile
new file mode 100644
index 00000000000000..98f4ae53112b01
--- /dev/null
+++ b/fs/lockd/Makefile
@@ -0,0 +1,21 @@
+#
+# Makefile for the linux lock manager stuff
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile...
+
+O_TARGET := lockd.o
+
+export-objs := lockd_syms.o
+
+obj-y    := clntlock.o clntproc.o host.o svc.o svclock.o svcshare.o \
+	    svcproc.o svcsubs.o mon.o xdr.o lockd_syms.o
+
+obj-$(CONFIG_LOCKD_V4) += xdr4.o svc4proc.o
+
+obj-m    := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/lockd/clntlock.c b/fs/lockd/clntlock.c
new file mode 100644
index 00000000000000..ef0f0054595e5d
--- /dev/null
+++ b/fs/lockd/clntlock.c
@@ -0,0 +1,254 @@
+/*
+ * linux/fs/lockd/clntlock.c
+ *
+ * Lock handling for the client side NLM implementation
+ *
+ * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
+ */
+
+#define __KERNEL_SYSCALLS__
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/nfs_fs.h>
+#include <linux/unistd.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/svc.h>
+#include <linux/lockd/lockd.h>
+#include <linux/smp_lock.h>
+
+#define NLMDBG_FACILITY		NLMDBG_CLIENT
+
+/*
+ * Local function prototypes
+ */
+static int			reclaimer(void *ptr);
+
+/*
+ * The following functions handle blocking and granting from the
+ * client perspective.
+ */
+
+/*
+ * This is the representation of a blocked client lock.
+ */
+struct nlm_wait {
+	struct nlm_wait *	b_next;		/* linked list */
+	wait_queue_head_t	b_wait;		/* where to wait on */
+	struct nlm_host *	b_host;
+	struct file_lock *	b_lock;		/* local file lock */
+	unsigned short		b_reclaim;	/* got to reclaim lock */
+	u32			b_status;	/* grant callback status */
+};
+
+static struct nlm_wait *	nlm_blocked;
+
+/*
+ * Block on a lock
+ */
+int
+nlmclnt_block(struct nlm_host *host, struct file_lock *fl, u32 *statp)
+{
+	struct nlm_wait	block, **head;
+	int		err;
+	u32		pstate;
+
+	block.b_host   = host;
+	block.b_lock   = fl;
+	init_waitqueue_head(&block.b_wait);
+	block.b_status = NLM_LCK_BLOCKED;
+	block.b_next   = nlm_blocked;
+	nlm_blocked    = &block;
+
+	/* Remember pseudo nsm state */
+	pstate = host->h_state;
+
+	/* Go to sleep waiting for GRANT callback. Some servers seem
+	 * to lose callbacks, however, so we're going to poll from
+	 * time to time just to make sure.
+	 *
+	 * For now, the retry frequency is pretty high; normally 
+	 * a 1 minute timeout would do. See the comment before
+	 * nlmclnt_lock for an explanation.
+	 */
+	sleep_on_timeout(&block.b_wait, 30*HZ);
+
+	for (head = &nlm_blocked; *head; head = &(*head)->b_next) {
+		if (*head == &block) {
+			*head = block.b_next;
+			break;
+		}
+	}
+
+	if (!signalled()) {
+		*statp = block.b_status;
+		return 0;
+	}
+
+	/* Okay, we were interrupted. Cancel the pending request
+	 * unless the server has rebooted.
+	 */
+	if (pstate == host->h_state && (err = nlmclnt_cancel(host, fl)) < 0)
+		printk(KERN_NOTICE
+			"lockd: CANCEL call failed (errno %d)\n", -err);
+
+	return -ERESTARTSYS;
+}
+
+/*
+ * The server lockd has called us back to tell us the lock was granted
+ */
+u32
+nlmclnt_grant(struct nlm_lock *lock)
+{
+	struct nlm_wait	*block;
+
+	/*
+	 * Look up blocked request based on arguments. 
+	 * Warning: must not use cookie to match it!
+	 */
+	for (block = nlm_blocked; block; block = block->b_next) {
+		if (nlm_compare_locks(block->b_lock, &lock->fl))
+			break;
+	}
+
+	/* Ooops, no blocked request found. */
+	if (block == NULL)
+		return nlm_lck_denied;
+
+	/* Alright, we found the lock. Set the return status and
+	 * wake up the caller.
+	 */
+	block->b_status = NLM_LCK_GRANTED;
+	wake_up(&block->b_wait);
+
+	return nlm_granted;
+}
+
+/*
+ * The following procedures deal with the recovery of locks after a
+ * server crash.
+ */
+
+/*
+ * Mark the locks for reclaiming.
+ * FIXME: In 2.5 we don't want to iterate through any global file_lock_list.
+ *        Maintain NLM lock reclaiming lists in the nlm_host instead.
+ */
+static
+void nlmclnt_mark_reclaim(struct nlm_host *host)
+{
+	struct file_lock *fl;
+	struct inode *inode;
+	struct list_head *tmp;
+
+	list_for_each(tmp, &file_lock_list) {
+		fl = list_entry(tmp, struct file_lock, fl_link);
+
+		inode = fl->fl_file->f_dentry->d_inode;
+		if (inode->i_sb->s_magic != NFS_SUPER_MAGIC)
+			continue;
+		if (fl->fl_u.nfs_fl.host != host)
+			continue;
+		if (!(fl->fl_u.nfs_fl.flags & NFS_LCK_GRANTED))
+			continue;
+		fl->fl_u.nfs_fl.flags |= NFS_LCK_RECLAIM;
+	}
+}
+
+/*
+ * Someone has sent us an SM_NOTIFY. Ensure we bind to the new port number,
+ * that we mark locks for reclaiming, and that we bump the pseudo NSM state.
+ */
+static inline
+void nlmclnt_prepare_reclaim(struct nlm_host *host, u32 newstate)
+{
+	host->h_monitored = 0;
+	host->h_nsmstate = newstate;
+	host->h_state++;
+	host->h_nextrebind = 0;
+	nlm_rebind_host(host);
+	nlmclnt_mark_reclaim(host);
+	dprintk("NLM: reclaiming locks for host %s", host->h_name);
+}
+
+/*
+ * Reclaim all locks on server host. We do this by spawning a separate
+ * reclaimer thread.
+ */
+void
+nlmclnt_recovery(struct nlm_host *host, u32 newstate)
+{
+	if (host->h_reclaiming++) {
+		if (host->h_nsmstate == newstate)
+			return;
+		nlmclnt_prepare_reclaim(host, newstate);
+	} else {
+		nlmclnt_prepare_reclaim(host, newstate);
+		nlm_get_host(host);
+		MOD_INC_USE_COUNT;
+		if (kernel_thread(reclaimer, host, CLONE_SIGNAL) < 0)
+			MOD_DEC_USE_COUNT;
+	}
+}
+
+static int
+reclaimer(void *ptr)
+{
+	struct nlm_host	  *host = (struct nlm_host *) ptr;
+	struct nlm_wait	  *block;
+	struct list_head *tmp;
+	struct file_lock *fl;
+	struct inode *inode;
+
+	daemonize();
+	reparent_to_init();
+	snprintf(current->comm, sizeof(current->comm),
+		 "%s-reclaim",
+		 host->h_name);
+
+	/* This one ensures that our parent doesn't terminate while the
+	 * reclaim is in progress */
+	lock_kernel();
+	lockd_up();
+
+	/* First, reclaim all locks that have been marked. */
+restart:
+	list_for_each(tmp, &file_lock_list) {
+		fl = list_entry(tmp, struct file_lock, fl_link);
+
+		inode = fl->fl_file->f_dentry->d_inode;
+		if (inode->i_sb->s_magic != NFS_SUPER_MAGIC)
+			continue;
+		if (fl->fl_u.nfs_fl.host != host)
+			continue;
+		if (!(fl->fl_u.nfs_fl.flags & NFS_LCK_RECLAIM))
+			continue;
+
+		fl->fl_u.nfs_fl.flags &= ~NFS_LCK_RECLAIM;
+		nlmclnt_reclaim(host, fl);
+		if (signalled())
+			break;
+		goto restart;
+	}
+
+	host->h_reclaiming = 0;
+	wake_up(&host->h_gracewait);
+
+	/* Now, wake up all processes that sleep on a blocked lock */
+	for (block = nlm_blocked; block; block = block->b_next) {
+		if (block->b_host == host) {
+			block->b_status = NLM_LCK_DENIED_GRACE_PERIOD;
+			wake_up(&block->b_wait);
+		}
+	}
+
+	/* Release host handle after use */
+	nlm_release_host(host);
+	lockd_down();
+	unlock_kernel();
+	MOD_DEC_USE_COUNT;
+
+	return 0;
+}
diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c
new file mode 100644
index 00000000000000..57ade71987eba3
--- /dev/null
+++ b/fs/lockd/clntproc.c
@@ -0,0 +1,695 @@
+/*
+ * linux/fs/lockd/clntproc.c
+ *
+ * RPC procedures for the client side NLM implementation
+ *
+ * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
+ */
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/nfs_fs.h>
+#include <linux/utsname.h>
+#include <linux/smp_lock.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/svc.h>
+#include <linux/lockd/lockd.h>
+#include <linux/lockd/sm_inter.h>
+
+#define NLMDBG_FACILITY		NLMDBG_CLIENT
+#define NLMCLNT_GRACE_WAIT	(5*HZ)
+
+static int	nlmclnt_test(struct nlm_rqst *, struct file_lock *);
+static int	nlmclnt_lock(struct nlm_rqst *, struct file_lock *);
+static int	nlmclnt_unlock(struct nlm_rqst *, struct file_lock *);
+static void	nlmclnt_unlock_callback(struct rpc_task *);
+static void	nlmclnt_cancel_callback(struct rpc_task *);
+static int	nlm_stat_to_errno(u32 stat);
+
+/*
+ * Cookie counter for NLM requests
+ */
+static u32	nlm_cookie = 0x1234;
+
+static inline void nlmclnt_next_cookie(struct nlm_cookie *c)
+{
+	memcpy(c->data, &nlm_cookie, 4);
+	memset(c->data+4, 0, 4);
+	c->len=4;
+	nlm_cookie++;
+}
+
+/*
+ * Initialize arguments for TEST/LOCK/UNLOCK/CANCEL calls
+ */
+static inline void
+nlmclnt_setlockargs(struct nlm_rqst *req, struct file_lock *fl)
+{
+	struct nlm_args	*argp = &req->a_args;
+	struct nlm_lock	*lock = &argp->lock;
+
+	nlmclnt_next_cookie(&argp->cookie);
+	argp->state   = nsm_local_state;
+	memcpy(&lock->fh, NFS_FH(fl->fl_file->f_dentry->d_inode), sizeof(struct nfs_fh));
+	lock->caller  = system_utsname.nodename;
+	lock->oh.data = req->a_owner;
+	lock->oh.len  = sprintf(req->a_owner, "%d@%s",
+				current->pid, system_utsname.nodename);
+	locks_copy_lock(&lock->fl, fl);
+}
+
+/*
+ * Initialize arguments for GRANTED call. The nlm_rqst structure
+ * has been cleared already.
+ */
+int
+nlmclnt_setgrantargs(struct nlm_rqst *call, struct nlm_lock *lock)
+{
+	locks_copy_lock(&call->a_args.lock.fl, &lock->fl);
+	memcpy(&call->a_args.lock.fh, &lock->fh, sizeof(call->a_args.lock.fh));
+	call->a_args.lock.caller = system_utsname.nodename;
+	call->a_args.lock.oh.len = lock->oh.len;
+
+	/* set default data area */
+	call->a_args.lock.oh.data = call->a_owner;
+
+	if (lock->oh.len > NLMCLNT_OHSIZE) {
+		void *data = kmalloc(lock->oh.len, GFP_KERNEL);
+		if (!data)
+			return 0;
+		call->a_args.lock.oh.data = (u8 *) data;
+	}
+
+	memcpy(call->a_args.lock.oh.data, lock->oh.data, lock->oh.len);
+	return 1;
+}
+
+void
+nlmclnt_freegrantargs(struct nlm_rqst *call)
+{
+	/*
+	 * Check whether we allocated memory for the owner.
+	 */
+	if (call->a_args.lock.oh.data != (u8 *) call->a_owner) {
+		kfree(call->a_args.lock.oh.data);
+	}
+}
+
+/*
+ * This is the main entry point for the NLM client.
+ */
+int
+nlmclnt_proc(struct inode *inode, int cmd, struct file_lock *fl)
+{
+	struct nfs_server	*nfssrv = NFS_SERVER(inode);
+	struct nlm_host		*host;
+	struct nlm_rqst		reqst, *call = &reqst;
+	sigset_t		oldset;
+	unsigned long		flags;
+	int			status, proto, vers;
+
+	vers = (NFS_PROTO(inode)->version == 3) ? 4 : 1;
+	if (NFS_PROTO(inode)->version > 3) {
+		printk(KERN_NOTICE "NFSv4 file locking not implemented!\n");
+		return -ENOLCK;
+	}
+
+	/* Retrieve transport protocol from NFS client */
+	proto = NFS_CLIENT(inode)->cl_xprt->prot;
+
+	if (!(host = nlmclnt_lookup_host(NFS_ADDR(inode), proto, vers)))
+		return -ENOLCK;
+
+	/* Create RPC client handle if not there, and copy soft
+	 * and intr flags from NFS client. */
+	if (host->h_rpcclnt == NULL) {
+		struct rpc_clnt	*clnt;
+
+		/* Bind an rpc client to this host handle (does not
+		 * perform a portmapper lookup) */
+		if (!(clnt = nlm_bind_host(host))) {
+			status = -ENOLCK;
+			goto done;
+		}
+		clnt->cl_softrtry = nfssrv->client->cl_softrtry;
+		clnt->cl_intr     = nfssrv->client->cl_intr;
+		clnt->cl_chatty   = nfssrv->client->cl_chatty;
+	}
+
+	/* Keep the old signal mask */
+	spin_lock_irqsave(&current->sigmask_lock, flags);
+	oldset = current->blocked;
+
+	/* If we're cleaning up locks because the process is exiting,
+	 * perform the RPC call asynchronously. */
+	if ((IS_SETLK(cmd) || IS_SETLKW(cmd))
+	    && fl->fl_type == F_UNLCK
+	    && (current->flags & PF_EXITING)) {
+		sigfillset(&current->blocked);	/* Mask all signals */
+		recalc_sigpending(current);
+		spin_unlock_irqrestore(&current->sigmask_lock, flags);
+
+		call = nlmclnt_alloc_call();
+		if (!call) {
+			status = -ENOMEM;
+			goto out_restore;
+		}
+		call->a_flags = RPC_TASK_ASYNC;
+	} else {
+		spin_unlock_irqrestore(&current->sigmask_lock, flags);
+		memset(call, 0, sizeof(*call));
+		locks_init_lock(&call->a_args.lock.fl);
+		locks_init_lock(&call->a_res.lock.fl);
+	}
+	call->a_host = host;
+
+	/* Set up the argument struct */
+	nlmclnt_setlockargs(call, fl);
+
+	if (IS_SETLK(cmd) || IS_SETLKW(cmd)) {
+		if (fl->fl_type != F_UNLCK) {
+			call->a_args.block = IS_SETLKW(cmd) ? 1 : 0;
+			status = nlmclnt_lock(call, fl);
+		} else
+			status = nlmclnt_unlock(call, fl);
+	} else if (IS_GETLK(cmd))
+		status = nlmclnt_test(call, fl);
+	else
+		status = -EINVAL;
+
+	if (status < 0 && (call->a_flags & RPC_TASK_ASYNC))
+		kfree(call);
+
+ out_restore:
+	spin_lock_irqsave(&current->sigmask_lock, flags);
+	current->blocked = oldset;
+	recalc_sigpending(current);
+	spin_unlock_irqrestore(&current->sigmask_lock, flags);
+
+done:
+	dprintk("lockd: clnt proc returns %d\n", status);
+	nlm_release_host(host);
+	return status;
+}
+
+/*
+ * Wait while server is in grace period
+ */
+static inline int
+nlmclnt_grace_wait(struct nlm_host *host)
+{
+	if (!host->h_reclaiming)
+		interruptible_sleep_on_timeout(&host->h_gracewait, 10*HZ);
+	else
+		interruptible_sleep_on(&host->h_gracewait);
+	return signalled()? -ERESTARTSYS : 0;
+}
+
+/*
+ * Allocate an NLM RPC call struct
+ */
+struct nlm_rqst *
+nlmclnt_alloc_call(void)
+{
+	struct nlm_rqst	*call;
+
+	while (!signalled()) {
+		call = (struct nlm_rqst *) kmalloc(sizeof(struct nlm_rqst), GFP_KERNEL);
+		if (call) {
+			memset(call, 0, sizeof(*call));
+			locks_init_lock(&call->a_args.lock.fl);
+			locks_init_lock(&call->a_res.lock.fl);
+			return call;
+		}
+		printk("nlmclnt_alloc_call: failed, waiting for memory\n");
+		current->state = TASK_INTERRUPTIBLE;
+		schedule_timeout(5*HZ);
+	}
+	return NULL;
+}
+
+/*
+ * Generic NLM call
+ */
+int
+nlmclnt_call(struct nlm_rqst *req, u32 proc)
+{
+	struct nlm_host	*host = req->a_host;
+	struct rpc_clnt	*clnt;
+	struct nlm_args	*argp = &req->a_args;
+	struct nlm_res	*resp = &req->a_res;
+	struct file	*filp = argp->lock.fl.fl_file;
+	struct rpc_message msg;
+	int		status;
+
+	dprintk("lockd: call procedure %s on %s\n",
+			nlm_procname(proc), host->h_name);
+
+	msg.rpc_proc = proc;
+	msg.rpc_argp = argp;
+	msg.rpc_resp = resp;
+	if (filp)
+		msg.rpc_cred = nfs_file_cred(filp);
+	else
+		msg.rpc_cred = NULL;
+
+	do {
+		if (host->h_reclaiming && !argp->reclaim) {
+			interruptible_sleep_on(&host->h_gracewait);
+			continue;
+		}
+
+		/* If we have no RPC client yet, create one. */
+		if ((clnt = nlm_bind_host(host)) == NULL)
+			return -ENOLCK;
+
+		/* Perform the RPC call. If an error occurs, try again */
+		if ((status = rpc_call_sync(clnt, &msg, 0)) < 0) {
+			dprintk("lockd: rpc_call returned error %d\n", -status);
+			switch (status) {
+			case -EPROTONOSUPPORT:
+				status = -EINVAL;
+				break;
+			case -ECONNREFUSED:
+			case -ETIMEDOUT:
+			case -ENOTCONN:
+				nlm_rebind_host(host);
+				status = -EAGAIN;
+				break;
+			case -ERESTARTSYS:
+				return signalled () ? -EINTR : status;
+			default:
+				break;
+			}
+			break;
+		} else
+		if (resp->status == NLM_LCK_DENIED_GRACE_PERIOD) {
+			dprintk("lockd: server in grace period\n");
+			if (argp->reclaim) {
+				printk(KERN_WARNING
+				     "lockd: spurious grace period reject?!\n");
+				return -ENOLCK;
+			}
+		} else {
+			dprintk("lockd: server returns status %d\n", resp->status);
+			return 0;	/* Okay, call complete */
+		}
+
+		/* Back off a little and try again */
+		interruptible_sleep_on_timeout(&host->h_gracewait, 15*HZ);
+
+		/* When the lock requested by F_SETLKW isn't available,
+		   we will wait until the request can be satisfied. If
+		   a signal is received during wait, we should return
+		   -EINTR. */
+		if (signalled ()) {
+			status = -EINTR;
+			break;
+		}
+	} while (1);
+
+	return status;
+}
+
+/*
+ * Generic NLM call, async version.
+ */
+int
+nlmsvc_async_call(struct nlm_rqst *req, u32 proc, rpc_action callback)
+{
+	struct nlm_host	*host = req->a_host;
+	struct rpc_clnt	*clnt;
+	struct nlm_args	*argp = &req->a_args;
+	struct nlm_res	*resp = &req->a_res;
+	struct rpc_message msg;
+	int		status;
+
+	dprintk("lockd: call procedure %s on %s (async)\n",
+			nlm_procname(proc), host->h_name);
+
+	/* If we have no RPC client yet, create one. */
+	if ((clnt = nlm_bind_host(host)) == NULL)
+		return -ENOLCK;
+
+        /* bootstrap and kick off the async RPC call */
+	msg.rpc_proc = proc;
+	msg.rpc_argp = argp;
+	msg.rpc_resp =resp;
+	msg.rpc_cred = NULL;	
+        status = rpc_call_async(clnt, &msg, RPC_TASK_ASYNC, callback, req);
+
+	return status;
+}
+
+int
+nlmclnt_async_call(struct nlm_rqst *req, u32 proc, rpc_action callback)
+{
+	struct nlm_host	*host = req->a_host;
+	struct rpc_clnt	*clnt;
+	struct nlm_args	*argp = &req->a_args;
+	struct nlm_res	*resp = &req->a_res;
+	struct file	*file = argp->lock.fl.fl_file;
+	struct rpc_message msg;
+	int		status;
+
+	dprintk("lockd: call procedure %s on %s (async)\n",
+			nlm_procname(proc), host->h_name);
+
+	/* If we have no RPC client yet, create one. */
+	if ((clnt = nlm_bind_host(host)) == NULL)
+		return -ENOLCK;
+
+        /* bootstrap and kick off the async RPC call */
+	msg.rpc_proc = proc;
+	msg.rpc_argp = argp;
+	msg.rpc_resp =resp;
+	if (file)
+		msg.rpc_cred = nfs_file_cred(file);
+	else
+		msg.rpc_cred = NULL;
+	/* Increment host refcount */
+	nlm_get_host(host);
+        status = rpc_call_async(clnt, &msg, RPC_TASK_ASYNC, callback, req);
+	if (status < 0)
+		nlm_release_host(host);
+	return status;
+}
+
+/*
+ * TEST for the presence of a conflicting lock
+ */
+static int
+nlmclnt_test(struct nlm_rqst *req, struct file_lock *fl)
+{
+	int	status;
+
+	if ((status = nlmclnt_call(req, NLMPROC_TEST)) < 0)
+		return status;
+
+	status = req->a_res.status;
+	if (status == NLM_LCK_GRANTED) {
+		fl->fl_type = F_UNLCK;
+	} if (status == NLM_LCK_DENIED) {
+		/*
+		 * Report the conflicting lock back to the application.
+		 * FIXME: Is it OK to report the pid back as well?
+		 */
+		locks_copy_lock(fl, &req->a_res.lock.fl);
+		/* fl->fl_pid = 0; */
+	} else {
+		return nlm_stat_to_errno(req->a_res.status);
+	}
+
+	return 0;
+}
+
+static
+void nlmclnt_insert_lock_callback(struct file_lock *fl)
+{
+	nlm_get_host(fl->fl_u.nfs_fl.host);
+}
+static
+void nlmclnt_remove_lock_callback(struct file_lock *fl)
+{
+	if (fl->fl_u.nfs_fl.host) {
+		nlm_release_host(fl->fl_u.nfs_fl.host);
+		fl->fl_u.nfs_fl.host = NULL;
+	}
+}
+
+/*
+ * LOCK: Try to create a lock
+ *
+ *			Programmer Harassment Alert
+ *
+ * When given a blocking lock request in a sync RPC call, the HPUX lockd
+ * will faithfully return LCK_BLOCKED but never cares to notify us when
+ * the lock could be granted. This way, our local process could hang
+ * around forever waiting for the callback.
+ *
+ *  Solution A:	Implement busy-waiting
+ *  Solution B: Use the async version of the call (NLM_LOCK_{MSG,RES})
+ *
+ * For now I am implementing solution A, because I hate the idea of
+ * re-implementing lockd for a third time in two months. The async
+ * calls shouldn't be too hard to do, however.
+ *
+ * This is one of the lovely things about standards in the NFS area:
+ * they're so soft and squishy you can't really blame HP for doing this.
+ */
+static int
+nlmclnt_lock(struct nlm_rqst *req, struct file_lock *fl)
+{
+	struct nlm_host	*host = req->a_host;
+	struct nlm_res	*resp = &req->a_res;
+	int		status;
+
+	if (!host->h_monitored && nsm_monitor(host) < 0) {
+		printk(KERN_NOTICE "lockd: failed to monitor %s\n",
+					host->h_name);
+		return -ENOLCK;
+	}
+
+	do {
+		if ((status = nlmclnt_call(req, NLMPROC_LOCK)) >= 0) {
+			if (resp->status != NLM_LCK_BLOCKED)
+				break;
+			status = nlmclnt_block(host, fl, &resp->status);
+		}
+		if (status < 0)
+			return status;
+	} while (resp->status == NLM_LCK_BLOCKED && req->a_args.block);
+
+	if (resp->status == NLM_LCK_GRANTED) {
+		fl->fl_u.nfs_fl.state = host->h_state;
+		fl->fl_u.nfs_fl.flags |= NFS_LCK_GRANTED;
+		fl->fl_u.nfs_fl.host = host;
+		fl->fl_insert = nlmclnt_insert_lock_callback;
+		fl->fl_remove = nlmclnt_remove_lock_callback;
+	}
+
+	return nlm_stat_to_errno(resp->status);
+}
+
+/*
+ * RECLAIM: Try to reclaim a lock
+ */
+int
+nlmclnt_reclaim(struct nlm_host *host, struct file_lock *fl)
+{
+	struct nlm_rqst reqst, *req;
+	int		status;
+
+	req = &reqst;
+	memset(req, 0, sizeof(*req));
+	locks_init_lock(&req->a_args.lock.fl);
+	locks_init_lock(&req->a_res.lock.fl);
+	req->a_host  = host;
+	req->a_flags = 0;
+
+	/* Set up the argument struct */
+	nlmclnt_setlockargs(req, fl);
+	req->a_args.reclaim = 1;
+
+	if ((status = nlmclnt_call(req, NLMPROC_LOCK)) >= 0
+	 && req->a_res.status == NLM_LCK_GRANTED)
+		return 0;
+
+	printk(KERN_WARNING "lockd: failed to reclaim lock for pid %d "
+				"(errno %d, status %d)\n", fl->fl_pid,
+				status, req->a_res.status);
+
+	/*
+	 * FIXME: This is a serious failure. We can
+	 *
+	 *  a.	Ignore the problem
+	 *  b.	Send the owning process some signal (Linux doesn't have
+	 *	SIGLOST, though...)
+	 *  c.	Retry the operation
+	 *
+	 * Until someone comes up with a simple implementation
+	 * for b or c, I'll choose option a.
+	 */
+
+	return -ENOLCK;
+}
+
+/*
+ * UNLOCK: remove an existing lock
+ */
+static int
+nlmclnt_unlock(struct nlm_rqst *req, struct file_lock *fl)
+{
+	struct nlm_res	*resp = &req->a_res;
+	int		status;
+
+	/* Clean the GRANTED flag now so the lock doesn't get
+	 * reclaimed while we're stuck in the unlock call. */
+	fl->fl_u.nfs_fl.flags &= ~NFS_LCK_GRANTED;
+
+	if (req->a_flags & RPC_TASK_ASYNC) {
+		return nlmclnt_async_call(req, NLMPROC_UNLOCK,
+					nlmclnt_unlock_callback);
+	}
+
+	if ((status = nlmclnt_call(req, NLMPROC_UNLOCK)) < 0)
+		return status;
+
+	if (resp->status == NLM_LCK_GRANTED)
+		return 0;
+
+	if (resp->status != NLM_LCK_DENIED_NOLOCKS)
+		printk("lockd: unexpected unlock status: %d\n", resp->status);
+
+	/* What to do now? I'm out of my depth... */
+
+	return -ENOLCK;
+}
+
+static void
+nlmclnt_unlock_callback(struct rpc_task *task)
+{
+	struct nlm_rqst	*req = (struct nlm_rqst *) task->tk_calldata;
+	int		status = req->a_res.status;
+
+	if (RPC_ASSASSINATED(task))
+		goto die;
+
+	if (task->tk_status < 0) {
+		dprintk("lockd: unlock failed (err = %d)\n", -task->tk_status);
+		goto retry_rebind;
+	}
+	if (status == NLM_LCK_DENIED_GRACE_PERIOD) {
+		rpc_delay(task, NLMCLNT_GRACE_WAIT);
+		goto retry_unlock;
+	}
+	if (status != NLM_LCK_GRANTED)
+		printk(KERN_WARNING "lockd: unexpected unlock status: %d\n", status);
+
+die:
+	nlm_release_host(req->a_host);
+	kfree(req);
+	return;
+ retry_rebind:
+	nlm_rebind_host(req->a_host);
+ retry_unlock:
+	rpc_restart_call(task);
+}
+
+/*
+ * Cancel a blocked lock request.
+ * We always use an async RPC call for this in order not to hang a
+ * process that has been Ctrl-C'ed.
+ */
+int
+nlmclnt_cancel(struct nlm_host *host, struct file_lock *fl)
+{
+	struct nlm_rqst	*req;
+	unsigned long	flags;
+	sigset_t	oldset;
+	int		status;
+
+	/* Block all signals while setting up call */
+	spin_lock_irqsave(&current->sigmask_lock, flags);
+	oldset = current->blocked;
+	sigfillset(&current->blocked);
+	recalc_sigpending(current);
+	spin_unlock_irqrestore(&current->sigmask_lock, flags);
+
+	req = nlmclnt_alloc_call();
+	if (!req)
+		return -ENOMEM;
+	req->a_host  = host;
+	req->a_flags = RPC_TASK_ASYNC;
+
+	nlmclnt_setlockargs(req, fl);
+
+	status = nlmclnt_async_call(req, NLMPROC_CANCEL,
+					nlmclnt_cancel_callback);
+	if (status < 0)
+		kfree(req);
+
+	spin_lock_irqsave(&current->sigmask_lock, flags);
+	current->blocked = oldset;
+	recalc_sigpending(current);
+	spin_unlock_irqrestore(&current->sigmask_lock, flags);
+
+	return status;
+}
+
+static void
+nlmclnt_cancel_callback(struct rpc_task *task)
+{
+	struct nlm_rqst	*req = (struct nlm_rqst *) task->tk_calldata;
+
+	if (RPC_ASSASSINATED(task))
+		goto die;
+
+	if (task->tk_status < 0) {
+		dprintk("lockd: CANCEL call error %d, retrying.\n",
+					task->tk_status);
+		goto retry_cancel;
+	}
+
+	dprintk("lockd: cancel status %d (task %d)\n",
+			req->a_res.status, task->tk_pid);
+
+	switch (req->a_res.status) {
+	case NLM_LCK_GRANTED:
+	case NLM_LCK_DENIED_GRACE_PERIOD:
+		/* Everything's good */
+		break;
+	case NLM_LCK_DENIED_NOLOCKS:
+		dprintk("lockd: CANCEL failed (server has no locks)\n");
+		goto retry_cancel;
+	default:
+		printk(KERN_NOTICE "lockd: weird return %d for CANCEL call\n",
+			req->a_res.status);
+	}
+
+die:
+	nlm_release_host(req->a_host);
+	kfree(req);
+	return;
+
+retry_cancel:
+	nlm_rebind_host(req->a_host);
+	rpc_restart_call(task);
+	rpc_delay(task, 30 * HZ);
+}
+
+/*
+ * Convert an NLM status code to a generic kernel errno
+ */
+static int
+nlm_stat_to_errno(u32 status)
+{
+	switch(status) {
+	case NLM_LCK_GRANTED:
+		return 0;
+	case NLM_LCK_DENIED:
+		return -EAGAIN;
+	case NLM_LCK_DENIED_NOLOCKS:
+	case NLM_LCK_DENIED_GRACE_PERIOD:
+		return -ENOLCK;
+	case NLM_LCK_BLOCKED:
+		printk(KERN_NOTICE "lockd: unexpected status NLM_BLOCKED\n");
+		return -ENOLCK;
+#ifdef CONFIG_LOCKD_V4
+	case NLM_DEADLCK:
+		return -EDEADLK;
+	case NLM_ROFS:
+		return -EROFS;
+	case NLM_STALE_FH:
+		return -ESTALE;
+	case NLM_FBIG:
+		return -EOVERFLOW;
+	case NLM_FAILED:
+		return -ENOLCK;
+#endif
+	}
+	printk(KERN_NOTICE "lockd: unexpected server status %d\n", status);
+	return -ENOLCK;
+}
diff --git a/fs/lockd/host.c b/fs/lockd/host.c
new file mode 100644
index 00000000000000..68da5cd4b3f18f
--- /dev/null
+++ b/fs/lockd/host.c
@@ -0,0 +1,343 @@
+/*
+ * linux/fs/lockd/host.c
+ *
+ * Management for NLM peer hosts. The nlm_host struct is shared
+ * between client and server implementation. The only reason to
+ * do so is to reduce code bloat.
+ *
+ * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
+ */
+
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/in.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/svc.h>
+#include <linux/lockd/lockd.h>
+#include <linux/lockd/sm_inter.h>
+
+
+#define NLMDBG_FACILITY		NLMDBG_HOSTCACHE
+#define NLM_HOST_MAX		64
+#define NLM_HOST_NRHASH		32
+#define NLM_ADDRHASH(addr)	(ntohl(addr) & (NLM_HOST_NRHASH-1))
+#define NLM_PTRHASH(ptr)	((((u32)(unsigned long) ptr) / 32) & (NLM_HOST_NRHASH-1))
+#define NLM_HOST_REBIND		(60 * HZ)
+#define NLM_HOST_EXPIRE		((nrhosts > NLM_HOST_MAX)? 300 * HZ : 120 * HZ)
+#define NLM_HOST_COLLECT	((nrhosts > NLM_HOST_MAX)? 120 * HZ :  60 * HZ)
+#define NLM_HOST_ADDR(sv)	(&(sv)->s_nlmclnt->cl_xprt->addr)
+
+static struct nlm_host *	nlm_hosts[NLM_HOST_NRHASH];
+static unsigned long		next_gc;
+static int			nrhosts;
+static DECLARE_MUTEX(nlm_host_sema);
+
+
+static void			nlm_gc_hosts(void);
+
+/*
+ * Find an NLM server handle in the cache. If there is none, create it.
+ */
+struct nlm_host *
+nlmclnt_lookup_host(struct sockaddr_in *sin, int proto, int version)
+{
+	return nlm_lookup_host(NULL, sin, proto, version);
+}
+
+/*
+ * Find an NLM client handle in the cache. If there is none, create it.
+ */
+struct nlm_host *
+nlmsvc_lookup_host(struct svc_rqst *rqstp)
+{
+	return nlm_lookup_host(rqstp->rq_client, &rqstp->rq_addr,
+			       rqstp->rq_prot, rqstp->rq_vers);
+}
+
+/*
+ * Match the given host against client/address
+ */
+static inline int
+nlm_match_host(struct nlm_host *host, struct svc_client *clnt,
+					struct sockaddr_in *sin)
+{
+	if (clnt)
+		return host->h_exportent == clnt;
+	return nlm_cmp_addr(&host->h_addr, sin);
+}
+
+/*
+ * Common host lookup routine for server & client
+ */
+struct nlm_host *
+nlm_lookup_host(struct svc_client *clnt, struct sockaddr_in *sin,
+					int proto, int version)
+{
+	struct nlm_host	*host, **hp;
+	u32		addr;
+	int		hash;
+
+	if (!clnt && !sin) {
+		printk(KERN_NOTICE "lockd: no clnt or addr in lookup_host!\n");
+		return NULL;
+	}
+
+	dprintk("lockd: nlm_lookup_host(%08x, p=%d, v=%d)\n",
+			(unsigned)(sin? ntohl(sin->sin_addr.s_addr) : 0), proto, version);
+
+	if (clnt)
+		hash = NLM_PTRHASH(clnt);
+	else
+		hash = NLM_ADDRHASH(sin->sin_addr.s_addr);
+
+	/* Lock hash table */
+	down(&nlm_host_sema);
+
+	if (time_after_eq(jiffies, next_gc))
+		nlm_gc_hosts();
+
+	for (hp = &nlm_hosts[hash]; (host = *hp); hp = &host->h_next) {
+		if (proto && host->h_proto != proto)
+			continue;
+		if (version && host->h_version != version)
+			continue;
+
+		if (nlm_match_host(host, clnt, sin)) {
+			if (hp != nlm_hosts + hash) {
+				*hp = host->h_next;
+				host->h_next = nlm_hosts[hash];
+				nlm_hosts[hash] = host;
+			}
+			nlm_get_host(host);
+			up(&nlm_host_sema);
+			return host;
+		}
+	}
+
+	/* special hack for nlmsvc_invalidate_client */
+	if (sin == NULL)
+		goto nohost;
+
+	/* Ooops, no host found, create it */
+	dprintk("lockd: creating host entry\n");
+
+	if (!(host = (struct nlm_host *) kmalloc(sizeof(*host), GFP_KERNEL)))
+		goto nohost;
+	memset(host, 0, sizeof(*host));
+
+	addr = sin->sin_addr.s_addr;
+	sprintf(host->h_name, "%d.%d.%d.%d",
+			(unsigned char) (ntohl(addr) >> 24),
+			(unsigned char) (ntohl(addr) >> 16),
+			(unsigned char) (ntohl(addr) >>  8),
+			(unsigned char) (ntohl(addr) >>  0));
+
+	host->h_addr       = *sin;
+	host->h_addr.sin_port = 0;	/* ouch! */
+	host->h_version    = version;
+	host->h_proto      = proto;
+	host->h_authflavor = RPC_AUTH_UNIX;
+	host->h_rpcclnt    = NULL;
+	init_MUTEX(&host->h_sema);
+	host->h_nextrebind = jiffies + NLM_HOST_REBIND;
+	host->h_expires    = jiffies + NLM_HOST_EXPIRE;
+	host->h_count      = 1;
+	init_waitqueue_head(&host->h_gracewait);
+	host->h_state      = 0;			/* pseudo NSM state */
+	host->h_nsmstate   = 0;			/* real NSM state */
+	host->h_exportent  = clnt;
+
+	host->h_next       = nlm_hosts[hash];
+	nlm_hosts[hash]    = host;
+
+	if (++nrhosts > NLM_HOST_MAX)
+		next_gc = 0;
+
+nohost:
+	up(&nlm_host_sema);
+	return host;
+}
+
+/*
+ * Create the NLM RPC client for an NLM peer
+ */
+struct rpc_clnt *
+nlm_bind_host(struct nlm_host *host)
+{
+	struct rpc_clnt	*clnt;
+	struct rpc_xprt	*xprt;
+
+	dprintk("lockd: nlm_bind_host(%08x)\n",
+			(unsigned)ntohl(host->h_addr.sin_addr.s_addr));
+
+	/* Lock host handle */
+	down(&host->h_sema);
+
+	/* If we've already created an RPC client, check whether
+	 * RPC rebind is required
+	 * Note: why keep rebinding if we're on a tcp connection?
+	 */
+	if ((clnt = host->h_rpcclnt) != NULL) {
+		xprt = clnt->cl_xprt;
+		if (!xprt->stream && time_after_eq(jiffies, host->h_nextrebind)) {
+			clnt->cl_port = 0;
+			host->h_nextrebind = jiffies + NLM_HOST_REBIND;
+			dprintk("lockd: next rebind in %ld jiffies\n",
+					host->h_nextrebind - jiffies);
+		}
+	} else {
+		xprt = xprt_create_proto(host->h_proto, &host->h_addr, NULL);
+		if (xprt == NULL)
+			goto forgetit;
+
+		xprt_set_timeout(&xprt->timeout, 5, nlmsvc_timeout);
+
+		clnt = rpc_create_client(xprt, host->h_name, &nlm_program,
+					host->h_version, host->h_authflavor);
+		if (clnt == NULL) {
+			xprt_destroy(xprt);
+			goto forgetit;
+		}
+		clnt->cl_autobind = 1;	/* turn on pmap queries */
+		xprt->nocong = 1;	/* No congestion control for NLM */
+		xprt->resvport = 1;	/* NLM requires a reserved port */
+
+		host->h_rpcclnt = clnt;
+	}
+
+	up(&host->h_sema);
+	return clnt;
+
+forgetit:
+	printk("lockd: couldn't create RPC handle for %s\n", host->h_name);
+	up(&host->h_sema);
+	return NULL;
+}
+
+/*
+ * Force a portmap lookup of the remote lockd port
+ */
+void
+nlm_rebind_host(struct nlm_host *host)
+{
+	dprintk("lockd: rebind host %s\n", host->h_name);
+	if (host->h_rpcclnt && time_after_eq(jiffies, host->h_nextrebind)) {
+		host->h_rpcclnt->cl_port = 0;
+		host->h_nextrebind = jiffies + NLM_HOST_REBIND;
+	}
+}
+
+/*
+ * Increment NLM host count
+ */
+struct nlm_host * nlm_get_host(struct nlm_host *host)
+{
+	if (host) {
+		dprintk("lockd: get host %s\n", host->h_name);
+		host->h_count ++;
+		host->h_expires = jiffies + NLM_HOST_EXPIRE;
+	}
+	return host;
+}
+
+/*
+ * Release NLM host after use
+ */
+void nlm_release_host(struct nlm_host *host)
+{
+	if (host && host->h_count) {
+		dprintk("lockd: release host %s\n", host->h_name);
+		host->h_count --;
+	}
+}
+
+/*
+ * Shut down the hosts module.
+ * Note that this routine is called only at server shutdown time.
+ */
+void
+nlm_shutdown_hosts(void)
+{
+	struct nlm_host	*host;
+	int		i;
+
+	dprintk("lockd: shutting down host module\n");
+	down(&nlm_host_sema);
+
+	/* First, make all hosts eligible for gc */
+	dprintk("lockd: nuking all hosts...\n");
+	for (i = 0; i < NLM_HOST_NRHASH; i++) {
+		for (host = nlm_hosts[i]; host; host = host->h_next)
+			host->h_expires = 0;
+	}
+
+	/* Then, perform a garbage collection pass */
+	nlm_gc_hosts();
+	up(&nlm_host_sema);
+
+	/* complain if any hosts are left */
+	if (nrhosts) {
+		printk(KERN_WARNING "lockd: couldn't shutdown host module!\n");
+		dprintk("lockd: %d hosts left:\n", nrhosts);
+		for (i = 0; i < NLM_HOST_NRHASH; i++) {
+			for (host = nlm_hosts[i]; host; host = host->h_next) {
+				dprintk("       %s (cnt %d use %d exp %ld)\n",
+					host->h_name, host->h_count,
+					host->h_inuse, host->h_expires);
+			}
+		}
+	}
+}
+
+/*
+ * Garbage collect any unused NLM hosts.
+ * This GC combines reference counting for async operations with
+ * mark & sweep for resources held by remote clients.
+ */
+static void
+nlm_gc_hosts(void)
+{
+	struct nlm_host	**q, *host;
+	struct rpc_clnt	*clnt;
+	int		i;
+
+	dprintk("lockd: host garbage collection\n");
+	for (i = 0; i < NLM_HOST_NRHASH; i++) {
+		for (host = nlm_hosts[i]; host; host = host->h_next)
+			host->h_inuse = 0;
+	}
+
+	/* Mark all hosts that hold locks, blocks or shares */
+	nlmsvc_mark_resources();
+
+	for (i = 0; i < NLM_HOST_NRHASH; i++) {
+		q = &nlm_hosts[i];
+		while ((host = *q) != NULL) {
+			if (host->h_count || host->h_inuse
+			 || time_before(jiffies, host->h_expires)) {
+				q = &host->h_next;
+				continue;
+			}
+			dprintk("lockd: delete host %s\n", host->h_name);
+			*q = host->h_next;
+			/* Don't unmonitor hosts that have been invalidated */
+			if (host->h_monitored && !host->h_killed)
+				nsm_unmonitor(host);
+			if ((clnt = host->h_rpcclnt) != NULL) {
+				if (atomic_read(&clnt->cl_users)) {
+					printk(KERN_WARNING
+						"lockd: active RPC handle\n");
+					clnt->cl_dead = 1;
+				} else {
+					rpc_destroy_client(host->h_rpcclnt);
+				}
+			}
+			kfree(host);
+			nrhosts--;
+		}
+	}
+
+	next_gc = jiffies + NLM_HOST_COLLECT;
+}
+
diff --git a/fs/lockd/lockd_syms.c b/fs/lockd/lockd_syms.c
new file mode 100644
index 00000000000000..2de24bbfd29cde
--- /dev/null
+++ b/fs/lockd/lockd_syms.c
@@ -0,0 +1,38 @@
+/*
+ * linux/fs/lockd/lockd_syms.c
+ *
+ * Symbols exported by the lockd module.
+ *
+ * Authors:	Olaf Kirch (okir@monad.swb.de)
+ *
+ * Copyright (C) 1997 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#define __NO_VERSION__
+#include <linux/config.h>
+#include <linux/module.h>
+
+#ifdef CONFIG_MODULES
+
+#include <linux/types.h>
+#include <linux/socket.h>
+#include <linux/sched.h>
+#include <linux/uio.h>
+#include <linux/unistd.h>
+
+#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/svc.h>
+#include <linux/lockd/lockd.h>
+
+/* Start/stop the daemon */
+EXPORT_SYMBOL(lockd_up);
+EXPORT_SYMBOL(lockd_down);
+
+/* NFS client entry */
+EXPORT_SYMBOL(nlmclnt_proc);
+
+/* NFS server entry points/hooks */
+EXPORT_SYMBOL(nlmsvc_invalidate_client);
+EXPORT_SYMBOL(nlmsvc_ops);
+
+#endif /* CONFIG_MODULES */
diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c
new file mode 100644
index 00000000000000..b12c311aca7f54
--- /dev/null
+++ b/fs/lockd/mon.c
@@ -0,0 +1,251 @@
+/*
+ * linux/fs/lockd/mon.c
+ *
+ * The kernel statd client.
+ *
+ * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
+ */
+
+#include <linux/types.h>
+#include <linux/utsname.h>
+#include <linux/kernel.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/svc.h>
+#include <linux/lockd/lockd.h>
+#include <linux/lockd/sm_inter.h>
+
+
+#define NLMDBG_FACILITY		NLMDBG_MONITOR
+
+static struct rpc_clnt *	nsm_create(void);
+
+extern struct rpc_program	nsm_program;
+
+/*
+ * Local NSM state
+ */
+u32				nsm_local_state;
+
+/*
+ * Common procedure for SM_MON/SM_UNMON calls
+ */
+static int
+nsm_mon_unmon(struct nlm_host *host, u32 proc, struct nsm_res *res)
+{
+	struct rpc_clnt	*clnt;
+	int		status;
+	struct nsm_args	args;
+
+	status = -EACCES;
+	clnt = nsm_create();
+	if (!clnt)
+		goto out;
+
+	args.addr = host->h_addr.sin_addr.s_addr;
+	args.prog = NLM_PROGRAM;
+	args.vers = host->h_version;
+	args.proc = NLMPROC_NSM_NOTIFY;
+	memset(res, 0, sizeof(*res));
+
+	status = rpc_call(clnt, proc, &args, res, 0);
+	if (status < 0)
+		printk(KERN_DEBUG "nsm_mon_unmon: rpc failed, status=%d\n",
+			status);
+	else
+		status = 0;
+ out:
+	return status;
+}
+
+/*
+ * Set up monitoring of a remote host
+ */
+int
+nsm_monitor(struct nlm_host *host)
+{
+	struct nsm_res	res;
+	int		status;
+
+	dprintk("lockd: nsm_monitor(%s)\n", host->h_name);
+
+	status = nsm_mon_unmon(host, SM_MON, &res);
+
+	if (status < 0 || res.status != 0)
+		printk(KERN_NOTICE "lockd: cannot monitor %s\n", host->h_name);
+	else
+		host->h_monitored = 1;
+	return status;
+}
+
+/*
+ * Cease to monitor remote host
+ */
+int
+nsm_unmonitor(struct nlm_host *host)
+{
+	struct nsm_res	res;
+	int		status;
+
+	dprintk("lockd: nsm_unmonitor(%s)\n", host->h_name);
+
+	status = nsm_mon_unmon(host, SM_UNMON, &res);
+	if (status < 0)
+		printk(KERN_NOTICE "lockd: cannot unmonitor %s\n", host->h_name);
+	else
+		host->h_monitored = 0;
+	return status;
+}
+
+/*
+ * Create NSM client for the local host
+ */
+static struct rpc_clnt *
+nsm_create(void)
+{
+	struct rpc_xprt		*xprt;
+	struct rpc_clnt		*clnt = NULL;
+	struct sockaddr_in	sin;
+
+	sin.sin_family = AF_INET;
+	sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+	sin.sin_port = 0;
+
+	xprt = xprt_create_proto(IPPROTO_UDP, &sin, NULL);
+	if (!xprt)
+		goto out;
+
+	clnt = rpc_create_client(xprt, "localhost",
+				&nsm_program, SM_VERSION,
+				RPC_AUTH_NULL);
+	if (!clnt)
+		goto out_destroy;
+	clnt->cl_softrtry = 1;
+	clnt->cl_chatty   = 1;
+	clnt->cl_oneshot  = 1;
+	xprt->resvport = 1;	/* NSM requires a reserved port */
+out:
+	return clnt;
+
+out_destroy:
+	xprt_destroy(xprt);
+	goto out;
+}
+
+/*
+ * XDR functions for NSM.
+ */
+static int
+xdr_error(struct rpc_rqst *rqstp, u32 *p, void *dummy)
+{
+	return -EACCES;
+}
+
+static int
+xdr_encode_mon(struct rpc_rqst *rqstp, u32 *p, struct nsm_args *argp)
+{
+	char	buffer[20];
+	u32	addr = ntohl(argp->addr);
+
+	dprintk("nsm: xdr_encode_mon(%08x, %d, %d, %d)\n",
+			htonl(argp->addr), htonl(argp->prog),
+			htonl(argp->vers), htonl(argp->proc));
+
+	/*
+	 * Use the dotted-quad IP address of the remote host as
+	 * identifier. Linux statd always looks up the canonical
+	 * hostname first for whatever remote hostname it receives,
+	 * so this works alright.
+	 */
+	sprintf(buffer, "%d.%d.%d.%d", (addr>>24) & 0xff, (addr>>16) & 0xff,
+				 	(addr>>8) & 0xff,  (addr) & 0xff);
+	if (!(p = xdr_encode_string(p, buffer))
+	 || !(p = xdr_encode_string(p, system_utsname.nodename)))
+		return -EIO;
+	*p++ = htonl(argp->prog);
+	*p++ = htonl(argp->vers);
+	*p++ = htonl(argp->proc);
+
+	/* This is the private part. Needed only for SM_MON call */
+	if (rqstp->rq_task->tk_msg.rpc_proc == SM_MON) {
+		*p++ = argp->addr;
+		*p++ = 0;
+		*p++ = 0;
+		*p++ = 0;
+	}
+
+	rqstp->rq_slen = xdr_adjust_iovec(rqstp->rq_svec, p);
+	return 0;
+}
+
+static int
+xdr_decode_stat_res(struct rpc_rqst *rqstp, u32 *p, struct nsm_res *resp)
+{
+	resp->status = ntohl(*p++);
+	resp->state = ntohl(*p++);
+	dprintk("nsm: xdr_decode_stat_res status %d state %d\n",
+			resp->status, resp->state);
+	return 0;
+}
+
+static int
+xdr_decode_stat(struct rpc_rqst *rqstp, u32 *p, struct nsm_res *resp)
+{
+	resp->state = ntohl(*p++);
+	return 0;
+}
+
+#define SM_my_name_sz	(1+XDR_QUADLEN(SM_MAXSTRLEN))
+#define SM_my_id_sz	(3+1+SM_my_name_sz)
+#define SM_mon_id_sz	(1+XDR_QUADLEN(20)+SM_my_id_sz)
+#define SM_mon_sz	(SM_mon_id_sz+4)
+#define SM_monres_sz	2
+#define SM_unmonres_sz	1
+
+#ifndef MAX
+# define MAX(a, b)	(((a) > (b))? (a) : (b))
+#endif
+
+static struct rpc_procinfo	nsm_procedures[] = {
+        { "sm_null",
+		(kxdrproc_t) xdr_error,
+		(kxdrproc_t) xdr_error, 0, 0 },
+        { "sm_stat",
+		(kxdrproc_t) xdr_error,
+		(kxdrproc_t) xdr_error, 0, 0 },
+        { "sm_mon",
+		(kxdrproc_t) xdr_encode_mon,
+		(kxdrproc_t) xdr_decode_stat_res, MAX(SM_mon_sz, SM_monres_sz) << 2, 0 },
+        { "sm_unmon",
+		(kxdrproc_t) xdr_encode_mon,
+		(kxdrproc_t) xdr_decode_stat, MAX(SM_mon_id_sz, SM_unmonres_sz) << 2, 0 },
+        { "sm_unmon_all",
+		(kxdrproc_t) xdr_error,
+		(kxdrproc_t) xdr_error, 0, 0 },
+        { "sm_simu_crash",
+		(kxdrproc_t) xdr_error,
+		(kxdrproc_t) xdr_error, 0, 0 },
+        { "sm_notify",
+		(kxdrproc_t) xdr_error,
+		(kxdrproc_t) xdr_error, 0, 0 },
+};
+
+static struct rpc_version	nsm_version1 = {
+	1, 
+	sizeof(nsm_procedures)/sizeof(nsm_procedures[0]),
+	nsm_procedures
+};
+
+static struct rpc_version *	nsm_version[] = {
+	NULL,
+	&nsm_version1,
+};
+
+static struct rpc_stat		nsm_stats;
+
+struct rpc_program		nsm_program = {
+	"statd",
+	SM_PROGRAM,
+	sizeof(nsm_version)/sizeof(nsm_version[0]),
+	nsm_version,
+	&nsm_stats
+};
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
new file mode 100644
index 00000000000000..39720c5180c40f
--- /dev/null
+++ b/fs/lockd/svc.c
@@ -0,0 +1,398 @@
+/*
+ * linux/fs/lockd/svc.c
+ *
+ * This is the central lockd service.
+ *
+ * FIXME: Separate the lockd NFS server functionality from the lockd NFS
+ * 	  client functionality. Oh why didn't Sun create two separate
+ *	  services in the first place?
+ *
+ * Authors:	Olaf Kirch (okir@monad.swb.de)
+ *
+ * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#define __KERNEL_SYSCALLS__
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/in.h>
+#include <linux/uio.h>
+#include <linux/version.h>
+#include <linux/unistd.h>
+#include <linux/slab.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+
+#include <linux/sunrpc/types.h>
+#include <linux/sunrpc/stats.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/svc.h>
+#include <linux/sunrpc/svcsock.h>
+#include <linux/lockd/lockd.h>
+#include <linux/nfs.h>
+
+#define NLMDBG_FACILITY		NLMDBG_SVC
+#define LOCKD_BUFSIZE		(1024 + NLMSSVC_XDRSIZE)
+#define ALLOWED_SIGS		(sigmask(SIGKILL))
+
+extern struct svc_program	nlmsvc_program;
+struct nlmsvc_binding *		nlmsvc_ops;
+static DECLARE_MUTEX(nlmsvc_sema);
+static unsigned int		nlmsvc_users;
+static pid_t			nlmsvc_pid;
+int				nlmsvc_grace_period;
+unsigned long			nlmsvc_timeout;
+
+static DECLARE_MUTEX_LOCKED(lockd_start);
+static DECLARE_WAIT_QUEUE_HEAD(lockd_exit);
+
+/*
+ * Currently the following can be set only at insmod time.
+ * Ideally, they would be accessible through the sysctl interface.
+ */
+unsigned long			nlm_grace_period;
+unsigned long			nlm_timeout = LOCKD_DFLT_TIMEO;
+unsigned long			nlm_udpport, nlm_tcpport;
+
+static unsigned long set_grace_period(void)
+{
+	unsigned long grace_period;
+
+	/* Note: nlm_timeout should always be nonzero */
+	if (nlm_grace_period)
+		grace_period = ((nlm_grace_period + nlm_timeout - 1)
+				/ nlm_timeout) * nlm_timeout * HZ;
+	else
+		grace_period = nlm_timeout * 5 * HZ;
+	nlmsvc_grace_period = 1;
+	return grace_period + jiffies;
+}
+
+/*
+ * This is the lockd kernel thread
+ */
+static void
+lockd(struct svc_rqst *rqstp)
+{
+	struct svc_serv	*serv = rqstp->rq_server;
+	int		err = 0;
+	unsigned long grace_period_expire;
+
+	/* Lock module and set up kernel thread */
+	MOD_INC_USE_COUNT;
+	lock_kernel();
+
+	/*
+	 * Let our maker know we're running.
+	 */
+	nlmsvc_pid = current->pid;
+	up(&lockd_start);
+
+	daemonize();
+	reparent_to_init();
+	sprintf(current->comm, "lockd");
+
+	/* Process request with signals blocked.  */
+	spin_lock_irq(&current->sigmask_lock);
+	siginitsetinv(&current->blocked, sigmask(SIGKILL));
+	recalc_sigpending(current);
+	spin_unlock_irq(&current->sigmask_lock);
+
+	/* kick rpciod */
+	rpciod_up();
+
+	dprintk("NFS locking service started (ver " LOCKD_VERSION ").\n");
+
+	if (!nlm_timeout)
+		nlm_timeout = LOCKD_DFLT_TIMEO;
+	nlmsvc_timeout = nlm_timeout * HZ;
+
+	grace_period_expire = set_grace_period();
+
+	/*
+	 * The main request loop. We don't terminate until the last
+	 * NFS mount or NFS daemon has gone away, and we've been sent a
+	 * signal, or else another process has taken over our job.
+	 */
+	while ((nlmsvc_users || !signalled()) && nlmsvc_pid == current->pid)
+	{
+		long timeout = MAX_SCHEDULE_TIMEOUT;
+		if (signalled()) {
+			spin_lock_irq(&current->sigmask_lock);
+			flush_signals(current);
+			spin_unlock_irq(&current->sigmask_lock);
+			if (nlmsvc_ops) {
+				nlmsvc_ops->detach();
+				grace_period_expire = set_grace_period();
+			}
+		}
+
+		/*
+		 * Retry any blocked locks that have been notified by
+		 * the VFS. Don't do this during grace period.
+		 * (Theoretically, there shouldn't even be blocked locks
+		 * during grace period).
+		 */
+		if (!nlmsvc_grace_period)
+			timeout = nlmsvc_retry_blocked();
+
+		/*
+		 * Find a socket with data available and call its
+		 * recvfrom routine.
+		 */
+		err = svc_recv(serv, rqstp, timeout);
+		if (err == -EAGAIN || err == -EINTR)
+			continue;
+		if (err < 0) {
+			printk(KERN_WARNING
+			       "lockd: terminating on error %d\n",
+			       -err);
+			break;
+		}
+
+		dprintk("lockd: request from %08x\n",
+			(unsigned)ntohl(rqstp->rq_addr.sin_addr.s_addr));
+
+		/*
+		 * Look up the NFS client handle. The handle is needed for
+		 * all but the GRANTED callback RPCs.
+		 */
+		rqstp->rq_client = NULL;
+		if (nlmsvc_ops) {
+			nlmsvc_ops->exp_readlock();
+			rqstp->rq_client =
+				nlmsvc_ops->exp_getclient(&rqstp->rq_addr);
+		}
+
+		if (nlmsvc_grace_period &&
+		    time_before(grace_period_expire, jiffies))
+			nlmsvc_grace_period = 0;
+		svc_process(serv, rqstp);
+
+		/* Unlock export hash tables */
+		if (nlmsvc_ops)
+			nlmsvc_ops->exp_unlock();
+	}
+
+	/*
+	 * Check whether there's a new lockd process before
+	 * shutting down the hosts and clearing the slot.
+	 */
+	if (!nlmsvc_pid || current->pid == nlmsvc_pid) {
+		if (nlmsvc_ops)
+			nlmsvc_ops->detach();
+		nlm_shutdown_hosts();
+		nlmsvc_pid = 0;
+	} else
+		printk(KERN_DEBUG
+			"lockd: new process, skipping host shutdown\n");
+	wake_up(&lockd_exit);
+		
+	/* Exit the RPC thread */
+	svc_exit_thread(rqstp);
+
+	/* release rpciod */
+	rpciod_down();
+
+	/* Release module */
+	MOD_DEC_USE_COUNT;
+}
+
+/*
+ * Bring up the lockd process if it's not already up.
+ */
+int
+lockd_up(void)
+{
+	static int		warned = 0; 
+	struct svc_serv *	serv;
+	int			error = 0;
+
+	down(&nlmsvc_sema);
+	/*
+	 * Unconditionally increment the user count ... this is
+	 * the number of clients who _want_ a lockd process.
+	 */
+	nlmsvc_users++; 
+	/*
+	 * Check whether we're already up and running.
+	 */
+	if (nlmsvc_pid)
+		goto out;
+
+	/*
+	 * Sanity check: if there's no pid,
+	 * we should be the first user ...
+	 */
+	if (nlmsvc_users > 1)
+		printk(KERN_WARNING
+			"lockd_up: no pid, %d users??\n", nlmsvc_users);
+
+	error = -ENOMEM;
+	serv = svc_create(&nlmsvc_program, 0, NLMSVC_XDRSIZE);
+	if (!serv) {
+		printk(KERN_WARNING "lockd_up: create service failed\n");
+		goto out;
+	}
+
+	if ((error = svc_makesock(serv, IPPROTO_UDP, nlm_udpport)) < 0 
+#ifdef CONFIG_NFSD_TCP
+	 || (error = svc_makesock(serv, IPPROTO_TCP, nlm_tcpport)) < 0
+#endif
+		) {
+		if (warned++ == 0) 
+			printk(KERN_WARNING
+				"lockd_up: makesock failed, error=%d\n", error);
+		goto destroy_and_out;
+	} 
+	warned = 0;
+
+	/*
+	 * Create the kernel thread and wait for it to start.
+	 */
+	error = svc_create_thread(lockd, serv);
+	if (error) {
+		printk(KERN_WARNING
+			"lockd_up: create thread failed, error=%d\n", error);
+		goto destroy_and_out;
+	}
+	down(&lockd_start);
+
+	/*
+	 * Note: svc_serv structures have an initial use count of 1,
+	 * so we exit through here on both success and failure.
+	 */
+destroy_and_out:
+	svc_destroy(serv);
+out:
+	up(&nlmsvc_sema);
+	return error;
+}
+
+/*
+ * Decrement the user count and bring down lockd if we're the last.
+ */
+void
+lockd_down(void)
+{
+	static int warned = 0; 
+
+	down(&nlmsvc_sema);
+	if (nlmsvc_users) {
+		if (--nlmsvc_users)
+			goto out;
+	} else
+		printk(KERN_WARNING "lockd_down: no users! pid=%d\n", nlmsvc_pid);
+
+	if (!nlmsvc_pid) {
+		if (warned++ == 0)
+			printk(KERN_WARNING "lockd_down: no lockd running.\n"); 
+		goto out;
+	}
+	warned = 0;
+
+	kill_proc(nlmsvc_pid, SIGKILL, 1);
+	/*
+	 * Wait for the lockd process to exit, but since we're holding
+	 * the lockd semaphore, we can't wait around forever ...
+	 */
+	current->sigpending = 0;
+	interruptible_sleep_on_timeout(&lockd_exit, HZ);
+	if (nlmsvc_pid) {
+		printk(KERN_WARNING 
+			"lockd_down: lockd failed to exit, clearing pid\n");
+		nlmsvc_pid = 0;
+	}
+	spin_lock_irq(&current->sigmask_lock);
+	recalc_sigpending(current);
+	spin_unlock_irq(&current->sigmask_lock);
+out:
+	up(&nlmsvc_sema);
+}
+
+#ifdef MODULE
+/* New module support in 2.1.18 */
+
+MODULE_AUTHOR("Olaf Kirch <okir@monad.swb.de>");
+MODULE_DESCRIPTION("NFS file locking service version " LOCKD_VERSION ".");
+MODULE_LICENSE("GPL");
+MODULE_PARM(nlm_grace_period, "10-240l");
+MODULE_PARM(nlm_timeout, "3-20l");
+MODULE_PARM(nlm_udpport, "0-65535l");
+MODULE_PARM(nlm_tcpport, "0-65535l");
+
+int
+init_module(void)
+{
+	/* Init the static variables */
+	init_MUTEX(&nlmsvc_sema);
+	nlmsvc_users = 0;
+	nlmsvc_pid = 0;
+	return 0;
+}
+
+void
+cleanup_module(void)
+{
+	/* FIXME: delete all NLM clients */
+	nlm_shutdown_hosts();
+}
+#else
+/* not a module, so process bootargs
+ * lockd.udpport and lockd.tcpport
+ */
+
+static int __init udpport_set(char *str)
+{
+	nlm_udpport = simple_strtoul(str, NULL, 0);
+	return 1;
+}
+static int __init tcpport_set(char *str)
+{
+	nlm_tcpport = simple_strtoul(str, NULL, 0);
+	return 1;
+}
+__setup("lockd.udpport=", udpport_set);
+__setup("lockd.tcpport=", tcpport_set);
+
+#endif
+
+/*
+ * Define NLM program and procedures
+ */
+static struct svc_version	nlmsvc_version1 = {
+	1, 17, nlmsvc_procedures, NULL
+};
+static struct svc_version	nlmsvc_version3 = {
+	3, 24, nlmsvc_procedures, NULL
+};
+#ifdef CONFIG_LOCKD_V4
+static struct svc_version	nlmsvc_version4 = {
+	4, 24, nlmsvc_procedures4, NULL
+};
+#endif
+static struct svc_version *	nlmsvc_version[] = {
+	NULL,
+	&nlmsvc_version1,
+	NULL,
+	&nlmsvc_version3,
+#ifdef CONFIG_LOCKD_V4
+	&nlmsvc_version4,
+#endif
+};
+
+static struct svc_stat		nlmsvc_stats;
+
+#define NLM_NRVERS	(sizeof(nlmsvc_version)/sizeof(nlmsvc_version[0]))
+struct svc_program		nlmsvc_program = {
+	NLM_PROGRAM,		/* program number */
+	1, NLM_NRVERS-1,	/* version range */
+	NLM_NRVERS,		/* number of entries in nlmsvc_version */
+	nlmsvc_version,		/* version table */
+	"lockd",		/* service name */
+	&nlmsvc_stats,		/* stats table */
+};
diff --git a/fs/lockd/svc4proc.c b/fs/lockd/svc4proc.c
new file mode 100644
index 00000000000000..90bad36540d21e
--- /dev/null
+++ b/fs/lockd/svc4proc.c
@@ -0,0 +1,588 @@
+/*
+ * linux/fs/lockd/svc4proc.c
+ *
+ * Lockd server procedures. We don't implement the NLM_*_RES 
+ * procedures because we don't use the async procedures.
+ *
+ * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
+ */
+
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/in.h>
+#include <linux/sunrpc/svc.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/nfsd/nfsd.h>
+#include <linux/lockd/lockd.h>
+#include <linux/lockd/share.h>
+#include <linux/lockd/sm_inter.h>
+
+
+#define NLMDBG_FACILITY		NLMDBG_CLIENT
+
+static u32	nlm4svc_callback(struct svc_rqst *, u32, struct nlm_res *);
+static void	nlm4svc_callback_exit(struct rpc_task *);
+
+/*
+ * Obtain client and file from arguments
+ */
+static u32
+nlm4svc_retrieve_args(struct svc_rqst *rqstp, struct nlm_args *argp,
+			struct nlm_host **hostp, struct nlm_file **filp)
+{
+	struct nlm_host		*host = NULL;
+	struct nlm_file		*file = NULL;
+	struct nlm_lock		*lock = &argp->lock;
+	u32			error = 0;
+
+	/* nfsd callbacks must have been installed for this procedure */
+	if (!nlmsvc_ops)
+		return nlm_lck_denied_nolocks;
+
+	/* Obtain handle for client host */
+	if (rqstp->rq_client == NULL) {
+		printk(KERN_NOTICE
+			"lockd: unauthenticated request from (%08x:%d)\n",
+			ntohl(rqstp->rq_addr.sin_addr.s_addr),
+			ntohs(rqstp->rq_addr.sin_port));
+		return nlm_lck_denied_nolocks;
+	}
+
+	/* Obtain host handle */
+	if (!(host = nlmsvc_lookup_host(rqstp))
+	 || (argp->monitor && !host->h_monitored && nsm_monitor(host) < 0))
+		goto no_locks;
+	*hostp = host;
+
+	/* Obtain file pointer. Not used by FREE_ALL call. */
+	if (filp != NULL) {
+		if ((error = nlm_lookup_file(rqstp, &file, &lock->fh)) != 0)
+			goto no_locks;
+		*filp = file;
+
+		/* Set up the missing parts of the file_lock structure */
+		lock->fl.fl_file  = &file->f_file;
+		lock->fl.fl_owner = (fl_owner_t) host;
+	}
+
+	return 0;
+
+no_locks:
+	if (host)
+		nlm_release_host(host);
+ 	if (error)
+		return error;	
+	return nlm_lck_denied_nolocks;
+}
+
+/*
+ * NULL: Test for presence of service
+ */
+static int
+nlm4svc_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
+{
+	dprintk("lockd: NULL          called\n");
+	return rpc_success;
+}
+
+/*
+ * TEST: Check for conflicting lock
+ */
+static int
+nlm4svc_proc_test(struct svc_rqst *rqstp, struct nlm_args *argp,
+				         struct nlm_res  *resp)
+{
+	struct nlm_host	*host;
+	struct nlm_file	*file;
+
+	dprintk("lockd: TEST4        called\n");
+	resp->cookie = argp->cookie;
+
+	/* Don't accept test requests during grace period */
+	if (nlmsvc_grace_period) {
+		resp->status = nlm_lck_denied_grace_period;
+		return rpc_success;
+	}
+
+	/* Obtain client and file */
+	if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
+		return rpc_success;
+
+	/* Now check for conflicting locks */
+	resp->status = nlmsvc_testlock(file, &argp->lock, &resp->lock);
+
+	dprintk("lockd: TEST4          status %d\n", ntohl(resp->status));
+	nlm_release_host(host);
+	nlm_release_file(file);
+	return rpc_success;
+}
+
+static int
+nlm4svc_proc_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
+				         struct nlm_res  *resp)
+{
+	struct nlm_host	*host;
+	struct nlm_file	*file;
+
+	dprintk("lockd: LOCK          called\n");
+
+	resp->cookie = argp->cookie;
+
+	/* Don't accept new lock requests during grace period */
+	if (nlmsvc_grace_period && !argp->reclaim) {
+		resp->status = nlm_lck_denied_grace_period;
+		return rpc_success;
+	}
+
+	/* Obtain client and file */
+	if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
+		return rpc_success;
+
+#if 0
+	/* If supplied state doesn't match current state, we assume it's
+	 * an old request that time-warped somehow. Any error return would
+	 * do in this case because it's irrelevant anyway.
+	 *
+	 * NB: We don't retrieve the remote host's state yet.
+	 */
+	if (host->h_nsmstate && host->h_nsmstate != argp->state) {
+		resp->status = nlm_lck_denied_nolocks;
+	} else
+#endif
+
+	/* Now try to lock the file */
+	resp->status = nlmsvc_lock(rqstp, file, &argp->lock,
+					argp->block, &argp->cookie);
+
+	dprintk("lockd: LOCK          status %d\n", ntohl(resp->status));
+	nlm_release_host(host);
+	nlm_release_file(file);
+	return rpc_success;
+}
+
+static int
+nlm4svc_proc_cancel(struct svc_rqst *rqstp, struct nlm_args *argp,
+				           struct nlm_res  *resp)
+{
+	struct nlm_host	*host;
+	struct nlm_file	*file;
+
+	dprintk("lockd: CANCEL        called\n");
+
+	resp->cookie = argp->cookie;
+
+	/* Don't accept requests during grace period */
+	if (nlmsvc_grace_period) {
+		resp->status = nlm_lck_denied_grace_period;
+		return rpc_success;
+	}
+
+	/* Obtain client and file */
+	if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
+		return rpc_success;
+
+	/* Try to cancel request. */
+	resp->status = nlmsvc_cancel_blocked(file, &argp->lock);
+
+	dprintk("lockd: CANCEL        status %d\n", ntohl(resp->status));
+	nlm_release_host(host);
+	nlm_release_file(file);
+	return rpc_success;
+}
+
+/*
+ * UNLOCK: release a lock
+ */
+static int
+nlm4svc_proc_unlock(struct svc_rqst *rqstp, struct nlm_args *argp,
+				           struct nlm_res  *resp)
+{
+	struct nlm_host	*host;
+	struct nlm_file	*file;
+
+	dprintk("lockd: UNLOCK        called\n");
+
+	resp->cookie = argp->cookie;
+
+	/* Don't accept new lock requests during grace period */
+	if (nlmsvc_grace_period) {
+		resp->status = nlm_lck_denied_grace_period;
+		return rpc_success;
+	}
+
+	/* Obtain client and file */
+	if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
+		return rpc_success;
+
+	/* Now try to remove the lock */
+	resp->status = nlmsvc_unlock(file, &argp->lock);
+
+	dprintk("lockd: UNLOCK        status %d\n", ntohl(resp->status));
+	nlm_release_host(host);
+	nlm_release_file(file);
+	return rpc_success;
+}
+
+/*
+ * GRANTED: A server calls us to tell that a process' lock request
+ * was granted
+ */
+static int
+nlm4svc_proc_granted(struct svc_rqst *rqstp, struct nlm_args *argp,
+				            struct nlm_res  *resp)
+{
+	resp->cookie = argp->cookie;
+
+	dprintk("lockd: GRANTED       called\n");
+	resp->status = nlmclnt_grant(&argp->lock);
+	dprintk("lockd: GRANTED       status %d\n", ntohl(resp->status));
+	return rpc_success;
+}
+
+/*
+ * `Async' versions of the above service routines. They aren't really,
+ * because we send the callback before the reply proper. I hope this
+ * doesn't break any clients.
+ */
+static int
+nlm4svc_proc_test_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
+					     void	     *resp)
+{
+	struct nlm_res	res;
+	u32		stat;
+
+	dprintk("lockd: TEST_MSG      called\n");
+
+	memset(&res, 0, sizeof(res));
+
+	if ((stat = nlm4svc_proc_test(rqstp, argp, &res)) == 0)
+		stat = nlm4svc_callback(rqstp, NLMPROC_TEST_RES, &res);
+	return stat;
+}
+
+static int
+nlm4svc_proc_lock_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
+					     void	     *resp)
+{
+	struct nlm_res	res;
+	u32		stat;
+
+	dprintk("lockd: LOCK_MSG      called\n");
+
+	if ((stat = nlm4svc_proc_lock(rqstp, argp, &res)) == 0)
+		stat = nlm4svc_callback(rqstp, NLMPROC_LOCK_RES, &res);
+	return stat;
+}
+
+static int
+nlm4svc_proc_cancel_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
+					       void	       *resp)
+{
+	struct nlm_res	res;
+	u32		stat;
+
+	dprintk("lockd: CANCEL_MSG    called\n");
+
+	if ((stat = nlm4svc_proc_cancel(rqstp, argp, &res)) == 0)
+		stat = nlm4svc_callback(rqstp, NLMPROC_CANCEL_RES, &res);
+	return stat;
+}
+
+static int
+nlm4svc_proc_unlock_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
+                                               void            *resp)
+{
+	struct nlm_res	res;
+	u32		stat;
+
+	dprintk("lockd: UNLOCK_MSG    called\n");
+
+	if ((stat = nlm4svc_proc_unlock(rqstp, argp, &res)) == 0)
+		stat = nlm4svc_callback(rqstp, NLMPROC_UNLOCK_RES, &res);
+	return stat;
+}
+
+static int
+nlm4svc_proc_granted_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
+                                                void            *resp)
+{
+	struct nlm_res	res;
+	u32		stat;
+
+	dprintk("lockd: GRANTED_MSG   called\n");
+
+	if ((stat = nlm4svc_proc_granted(rqstp, argp, &res)) == 0)
+		stat = nlm4svc_callback(rqstp, NLMPROC_GRANTED_RES, &res);
+	return stat;
+}
+
+/*
+ * SHARE: create a DOS share or alter existing share.
+ */
+static int
+nlm4svc_proc_share(struct svc_rqst *rqstp, struct nlm_args *argp,
+				          struct nlm_res  *resp)
+{
+	struct nlm_host	*host;
+	struct nlm_file	*file;
+
+	dprintk("lockd: SHARE         called\n");
+
+	resp->cookie = argp->cookie;
+
+	/* Don't accept new lock requests during grace period */
+	if (nlmsvc_grace_period && !argp->reclaim) {
+		resp->status = nlm_lck_denied_grace_period;
+		return rpc_success;
+	}
+
+	/* Obtain client and file */
+	if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
+		return rpc_success;
+
+	/* Now try to create the share */
+	resp->status = nlmsvc_share_file(host, file, argp);
+
+	dprintk("lockd: SHARE         status %d\n", ntohl(resp->status));
+	nlm_release_host(host);
+	nlm_release_file(file);
+	return rpc_success;
+}
+
+/*
+ * UNSHARE: Release a DOS share.
+ */
+static int
+nlm4svc_proc_unshare(struct svc_rqst *rqstp, struct nlm_args *argp,
+				            struct nlm_res  *resp)
+{
+	struct nlm_host	*host;
+	struct nlm_file	*file;
+
+	dprintk("lockd: UNSHARE       called\n");
+
+	resp->cookie = argp->cookie;
+
+	/* Don't accept requests during grace period */
+	if (nlmsvc_grace_period) {
+		resp->status = nlm_lck_denied_grace_period;
+		return rpc_success;
+	}
+
+	/* Obtain client and file */
+	if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
+		return rpc_success;
+
+	/* Now try to lock the file */
+	resp->status = nlmsvc_unshare_file(host, file, argp);
+
+	dprintk("lockd: UNSHARE       status %d\n", ntohl(resp->status));
+	nlm_release_host(host);
+	nlm_release_file(file);
+	return rpc_success;
+}
+
+/*
+ * NM_LOCK: Create an unmonitored lock
+ */
+static int
+nlm4svc_proc_nm_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
+				            struct nlm_res  *resp)
+{
+	dprintk("lockd: NM_LOCK       called\n");
+
+	argp->monitor = 0;		/* just clean the monitor flag */
+	return nlm4svc_proc_lock(rqstp, argp, resp);
+}
+
+/*
+ * FREE_ALL: Release all locks and shares held by client
+ */
+static int
+nlm4svc_proc_free_all(struct svc_rqst *rqstp, struct nlm_args *argp,
+					     void            *resp)
+{
+	struct nlm_host	*host;
+
+	/* Obtain client */
+	if (nlm4svc_retrieve_args(rqstp, argp, &host, NULL))
+		return rpc_success;
+
+	nlmsvc_free_host_resources(host);
+	nlm_release_host(host);
+	return rpc_success;
+}
+
+/*
+ * SM_NOTIFY: private callback from statd (not part of official NLM proto)
+ */
+static int
+nlm4svc_proc_sm_notify(struct svc_rqst *rqstp, struct nlm_reboot *argp,
+					      void	        *resp)
+{
+	struct sockaddr_in	saddr = rqstp->rq_addr;
+	int			vers = rqstp->rq_vers;
+	int			prot = rqstp->rq_prot;
+	struct nlm_host		*host;
+
+	dprintk("lockd: SM_NOTIFY     called\n");
+	if (saddr.sin_addr.s_addr != htonl(INADDR_LOOPBACK)
+	 || ntohs(saddr.sin_port) >= 1024) {
+		printk(KERN_WARNING
+			"lockd: rejected NSM callback from %08x:%d\n",
+			ntohl(rqstp->rq_addr.sin_addr.s_addr),
+			ntohs(rqstp->rq_addr.sin_port));
+		return rpc_system_err;
+	}
+
+	/* Obtain the host pointer for this NFS server and try to
+	 * reclaim all locks we hold on this server.
+	 */
+	saddr.sin_addr.s_addr = argp->addr;
+	if ((host = nlmclnt_lookup_host(&saddr, prot, vers)) != NULL) {
+		nlmclnt_recovery(host, argp->state);
+		nlm_release_host(host);
+	}
+
+	/* If we run on an NFS server, delete all locks held by the client */
+	if (nlmsvc_ops != NULL) {
+		struct svc_client	*clnt;
+		saddr.sin_addr.s_addr = argp->addr;
+		if ((clnt = nlmsvc_ops->exp_getclient(&saddr)) != NULL 
+		 && (host = nlm_lookup_host(clnt, &saddr, 0, 0)) != NULL) {
+			nlmsvc_free_host_resources(host);
+		}
+		nlm_release_host(host);
+	}
+
+	return rpc_success;
+}
+
+/*
+ * client sent a GRANTED_RES, let's remove the associated block
+ */
+static int
+nlm4svc_proc_granted_res(struct svc_rqst *rqstp, struct nlm_res  *argp,
+                                                void            *resp)
+{
+        if (!nlmsvc_ops)
+                return rpc_success;
+
+        dprintk("lockd: GRANTED_RES   called\n");
+
+        nlmsvc_grant_reply(rqstp, &argp->cookie, argp->status);
+        return rpc_success;
+}
+
+
+
+/*
+ * This is the generic lockd callback for async RPC calls
+ */
+static u32
+nlm4svc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_res *resp)
+{
+	struct nlm_host	*host;
+	struct nlm_rqst	*call;
+
+	if (!(call = nlmclnt_alloc_call()))
+		return rpc_system_err;
+
+	host = nlmclnt_lookup_host(&rqstp->rq_addr,
+				rqstp->rq_prot, rqstp->rq_vers);
+	if (!host) {
+		kfree(call);
+		return rpc_system_err;
+	}
+
+	call->a_flags = RPC_TASK_ASYNC;
+	call->a_host  = host;
+	memcpy(&call->a_args, resp, sizeof(*resp));
+
+	if (nlmsvc_async_call(call, proc, nlm4svc_callback_exit) < 0)
+		goto error;
+
+	return rpc_success;
+ error:
+	kfree(call);
+	nlm_release_host(host);
+	return rpc_system_err;
+}
+
+static void
+nlm4svc_callback_exit(struct rpc_task *task)
+{
+	struct nlm_rqst	*call = (struct nlm_rqst *) task->tk_calldata;
+
+	if (task->tk_status < 0) {
+		dprintk("lockd: %4d callback failed (errno = %d)\n",
+					task->tk_pid, -task->tk_status);
+	}
+	nlm_release_host(call->a_host);
+	kfree(call);
+}
+
+/*
+ * NLM Server procedures.
+ */
+
+#define nlm4svc_encode_norep	nlm4svc_encode_void
+#define nlm4svc_decode_norep	nlm4svc_decode_void
+#define nlm4svc_decode_testres	nlm4svc_decode_void
+#define nlm4svc_decode_lockres	nlm4svc_decode_void
+#define nlm4svc_decode_unlockres	nlm4svc_decode_void
+#define nlm4svc_decode_cancelres	nlm4svc_decode_void
+#define nlm4svc_decode_grantedres	nlm4svc_decode_void
+
+#define nlm4svc_proc_none	nlm4svc_proc_null
+#define nlm4svc_proc_test_res	nlm4svc_proc_null
+#define nlm4svc_proc_lock_res	nlm4svc_proc_null
+#define nlm4svc_proc_cancel_res	nlm4svc_proc_null
+#define nlm4svc_proc_unlock_res	nlm4svc_proc_null
+
+struct nlm_void			{ int dummy; };
+
+#define PROC(name, xargt, xrest, argt, rest, respsize)	\
+ { (svc_procfunc) nlm4svc_proc_##name,	\
+   (kxdrproc_t) nlm4svc_decode_##xargt,	\
+   (kxdrproc_t) nlm4svc_encode_##xrest,	\
+   NULL,				\
+   sizeof(struct nlm_##argt),		\
+   sizeof(struct nlm_##rest),		\
+   0,					\
+   0,					\
+   respsize,				\
+ }
+#define	Ck	(1+8)	/* cookie */
+#define	No	(1+1024/4)	/* netobj */
+#define	St	1	/* status */
+#define	Rg	4	/* range (offset + length) */
+struct svc_procedure		nlmsvc_procedures4[] = {
+  PROC(null,		void,		void,		void,	void, 1),
+  PROC(test,		testargs,	testres,	args,	res, Ck+St+2+No+Rg),
+  PROC(lock,		lockargs,	res,		args,	res, Ck+St),
+  PROC(cancel,		cancargs,	res,		args,	res, Ck+St),
+  PROC(unlock,		unlockargs,	res,		args,	res, Ck+St),
+  PROC(granted,		testargs,	res,		args,	res, Ck+St),
+  PROC(test_msg,	testargs,	norep,		args,	void, 1),
+  PROC(lock_msg,	lockargs,	norep,		args,	void, 1),
+  PROC(cancel_msg,	cancargs,	norep,		args,	void, 1),
+  PROC(unlock_msg,	unlockargs,	norep,		args,	void, 1),
+  PROC(granted_msg,	testargs,	norep,		args,	void, 1),
+  PROC(test_res,	testres,	norep,		res,	void, 1),
+  PROC(lock_res,	lockres,	norep,		res,	void, 1),
+  PROC(cancel_res,	cancelres,	norep,		res,	void, 1),
+  PROC(unlock_res,	unlockres,	norep,		res,	void, 1),
+  PROC(granted_res,	res,		norep,		res,	void, 1),
+  /* statd callback */
+  PROC(sm_notify,	reboot,		void,		reboot,	void, 1),
+  PROC(none,		void,		void,		void,	void, 0),
+  PROC(none,		void,		void,		void,	void, 0),
+  PROC(none,		void,		void,		void,	void, 0),
+  PROC(share,		shareargs,	shareres,	args,	res, Ck+St+1),
+  PROC(unshare,		shareargs,	shareres,	args,	res, Ck+St+1),
+  PROC(nm_lock,		lockargs,	res,		args,	res, Ck+St),
+  PROC(free_all,	notify,		void,		args,	void, 1),
+
+};
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c
new file mode 100644
index 00000000000000..310a5245a0c11d
--- /dev/null
+++ b/fs/lockd/svclock.c
@@ -0,0 +1,685 @@
+/*
+ * linux/fs/lockd/svclock.c
+ *
+ * Handling of server-side locks, mostly of the blocked variety.
+ * This is the ugliest part of lockd because we tread on very thin ice.
+ * GRANT and CANCEL calls may get stuck, meet in mid-flight, etc.
+ * IMNSHO introducing the grant callback into the NLM protocol was one
+ * of the worst ideas Sun ever had. Except maybe for the idea of doing
+ * NFS file locking at all.
+ *
+ * I'm trying hard to avoid race conditions by protecting most accesses
+ * to a file's list of blocked locks through a semaphore. The global
+ * list of blocked locks is not protected in this fashion however.
+ * Therefore, some functions (such as the RPC callback for the async grant
+ * call) move blocked locks towards the head of the list *while some other
+ * process might be traversing it*. This should not be a problem in
+ * practice, because this will only cause functions traversing the list
+ * to visit some blocks twice.
+ *
+ * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
+ */
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/smp_lock.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/svc.h>
+#include <linux/lockd/nlm.h>
+#include <linux/lockd/lockd.h>
+
+#define NLMDBG_FACILITY		NLMDBG_SVCLOCK
+
+#ifdef CONFIG_LOCKD_V4
+#define nlm_deadlock	nlm4_deadlock
+#else
+#define nlm_deadlock	nlm_lck_denied
+#endif
+
+static void	nlmsvc_insert_block(struct nlm_block *block, unsigned long);
+static int	nlmsvc_remove_block(struct nlm_block *block);
+static void	nlmsvc_grant_callback(struct rpc_task *task);
+static void	nlmsvc_notify_blocked(struct file_lock *);
+
+/*
+ * The list of blocked locks to retry
+ */
+static struct nlm_block *	nlm_blocked;
+
+/*
+ * Insert a blocked lock into the global list
+ */
+static void
+nlmsvc_insert_block(struct nlm_block *block, unsigned long when)
+{
+	struct nlm_block **bp, *b;
+
+	dprintk("lockd: nlmsvc_insert_block(%p, %ld)\n", block, when);
+	if (block->b_queued)
+		nlmsvc_remove_block(block);
+	bp = &nlm_blocked;
+	if (when != NLM_NEVER) {
+		if ((when += jiffies) == NLM_NEVER)
+			when ++;
+		while ((b = *bp) && time_before_eq(b->b_when,when) && b->b_when != NLM_NEVER)
+			bp = &b->b_next;
+	} else
+		while ((b = *bp))
+			bp = &b->b_next;
+
+	block->b_queued = 1;
+	block->b_when = when;
+	block->b_next = b;
+	*bp = block;
+}
+
+/*
+ * Remove a block from the global list
+ */
+static int
+nlmsvc_remove_block(struct nlm_block *block)
+{
+	struct nlm_block **bp, *b;
+
+	if (!block->b_queued)
+		return 1;
+	for (bp = &nlm_blocked; (b = *bp); bp = &b->b_next) {
+		if (b == block) {
+			*bp = block->b_next;
+			block->b_queued = 0;
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+/*
+ * Find a block for a given lock and optionally remove it from
+ * the list.
+ */
+static struct nlm_block *
+nlmsvc_lookup_block(struct nlm_file *file, struct nlm_lock *lock, int remove)
+{
+	struct nlm_block	**head, *block;
+	struct file_lock	*fl;
+
+	dprintk("lockd: nlmsvc_lookup_block f=%p pd=%d %Ld-%Ld ty=%d\n",
+				file, lock->fl.fl_pid,
+				(long long)lock->fl.fl_start,
+				(long long)lock->fl.fl_end, lock->fl.fl_type);
+	for (head = &nlm_blocked; (block = *head); head = &block->b_next) {
+		fl = &block->b_call.a_args.lock.fl;
+		dprintk("lockd: check f=%p pd=%d %Ld-%Ld ty=%d cookie=%s\n",
+				block->b_file, fl->fl_pid,
+				(long long)fl->fl_start,
+				(long long)fl->fl_end, fl->fl_type,
+				nlmdbg_cookie2a(&block->b_call.a_args.cookie));
+		if (block->b_file == file && nlm_compare_locks(fl, &lock->fl)) {
+			if (remove) {
+				*head = block->b_next;
+				block->b_queued = 0;
+			}
+			return block;
+		}
+	}
+
+	return NULL;
+}
+
+static inline int nlm_cookie_match(struct nlm_cookie *a, struct nlm_cookie *b)
+{
+	if(a->len != b->len)
+		return 0;
+	if(memcmp(a->data,b->data,a->len))
+		return 0;
+	return 1;
+}
+
+/*
+ * Find a block with a given NLM cookie.
+ */
+static inline struct nlm_block *
+nlmsvc_find_block(struct nlm_cookie *cookie,  struct sockaddr_in *sin)
+{
+	struct nlm_block *block;
+
+	for (block = nlm_blocked; block; block = block->b_next) {
+		dprintk("cookie: head of blocked queue %p, block %p\n", 
+			nlm_blocked, block);
+		if (nlm_cookie_match(&block->b_call.a_args.cookie,cookie)
+				&& nlm_cmp_addr(sin, &block->b_host->h_addr))
+			break;
+	}
+
+	return block;
+}
+
+/*
+ * Create a block and initialize it.
+ *
+ * Note: we explicitly set the cookie of the grant reply to that of
+ * the blocked lock request. The spec explicitly mentions that the client
+ * should _not_ rely on the callback containing the same cookie as the
+ * request, but (as I found out later) that's because some implementations
+ * do just this. Never mind the standards comittees, they support our
+ * logging industries.
+ */
+static inline struct nlm_block *
+nlmsvc_create_block(struct svc_rqst *rqstp, struct nlm_file *file,
+				struct nlm_lock *lock, struct nlm_cookie *cookie)
+{
+	struct nlm_block	*block;
+	struct nlm_host		*host;
+	struct nlm_rqst		*call;
+
+	/* Create host handle for callback */
+	host = nlmclnt_lookup_host(&rqstp->rq_addr,
+				rqstp->rq_prot, rqstp->rq_vers);
+	if (host == NULL)
+		return NULL;
+
+	/* Allocate memory for block, and initialize arguments */
+	if (!(block = (struct nlm_block *) kmalloc(sizeof(*block), GFP_KERNEL)))
+		goto failed;
+	memset(block, 0, sizeof(*block));
+	locks_init_lock(&block->b_call.a_args.lock.fl);
+	locks_init_lock(&block->b_call.a_res.lock.fl);
+
+	block->b_host = nlmsvc_lookup_host(rqstp);
+	if (block->b_host == NULL) {
+		goto failed_free;
+	}
+
+	if (!nlmclnt_setgrantargs(&block->b_call, lock))
+		goto failed_free;
+
+	/* Set notifier function for VFS, and init args */
+	block->b_call.a_args.lock.fl.fl_notify = nlmsvc_notify_blocked;
+	block->b_call.a_args.cookie = *cookie;	/* see above */
+
+	dprintk("lockd: created block %p...\n", block);
+
+	/* Create and initialize the block */
+	block->b_daemon = rqstp->rq_server;
+	block->b_file   = file;
+
+	/* Add to file's list of blocks */
+	block->b_fnext  = file->f_blocks;
+	file->f_blocks  = block;
+
+	/* Set up RPC arguments for callback */
+	call = &block->b_call;
+	call->a_host    = host;
+	call->a_flags   = RPC_TASK_ASYNC;
+
+	return block;
+
+failed_free:
+	kfree(block);
+failed:
+	nlm_release_host(host);
+	return NULL;
+}
+
+/*
+ * Delete a block. If the lock was cancelled or the grant callback
+ * failed, unlock is set to 1.
+ * It is the caller's responsibility to check whether the file
+ * can be closed hereafter.
+ */
+static void
+nlmsvc_delete_block(struct nlm_block *block, int unlock)
+{
+	struct file_lock	*fl = &block->b_call.a_args.lock.fl;
+	struct nlm_file		*file = block->b_file;
+	struct nlm_block	**bp;
+
+	dprintk("lockd: deleting block %p...\n", block);
+
+	/* Remove block from list */
+	nlmsvc_remove_block(block);
+
+	/* If granted, unlock it, else remove from inode block list */
+	if (unlock && block->b_granted) {
+		dprintk("lockd: deleting granted lock\n");
+		fl->fl_type = F_UNLCK;
+		posix_lock_file(&block->b_file->f_file, fl, 0);
+		block->b_granted = 0;
+	} else {
+		dprintk("lockd: unblocking blocked lock\n");
+		posix_unblock_lock(fl);
+	}
+
+	/* If the block is in the middle of a GRANT callback,
+	 * don't kill it yet. */
+	if (block->b_incall) {
+		nlmsvc_insert_block(block, NLM_NEVER);
+		block->b_done = 1;
+		return;
+	}
+
+	/* Remove block from file's list of blocks */
+	for (bp = &file->f_blocks; *bp; bp = &(*bp)->b_fnext) {
+		if (*bp == block) {
+			*bp = block->b_fnext;
+			break;
+		}
+	}
+
+	nlm_release_host(block->b_host);
+	nlmclnt_freegrantargs(&block->b_call);
+	kfree(block);
+}
+
+/*
+ * Loop over all blocks and perform the action specified.
+ * (NLM_ACT_CHECK handled by nlmsvc_inspect_file).
+ */
+int
+nlmsvc_traverse_blocks(struct nlm_host *host, struct nlm_file *file, int action)
+{
+	struct nlm_block	*block, *next;
+
+	down(&file->f_sema);
+	for (block = file->f_blocks; block; block = next) {
+		next = block->b_fnext;
+		if (action == NLM_ACT_MARK)
+			block->b_host->h_inuse = 1;
+		else if (action == NLM_ACT_UNLOCK) {
+			if (host == NULL || host == block->b_host)
+				nlmsvc_delete_block(block, 1);
+		}
+	}
+	up(&file->f_sema);
+	return 0;
+}
+
+/*
+ * Attempt to establish a lock, and if it can't be granted, block it
+ * if required.
+ */
+u32
+nlmsvc_lock(struct svc_rqst *rqstp, struct nlm_file *file,
+			struct nlm_lock *lock, int wait, struct nlm_cookie *cookie)
+{
+	struct file_lock	*conflock;
+	struct nlm_block	*block;
+	int			error;
+
+	dprintk("lockd: nlmsvc_lock(%04x/%ld, ty=%d, pi=%d, %Ld-%Ld, bl=%d)\n",
+				file->f_file.f_dentry->d_inode->i_dev,
+				file->f_file.f_dentry->d_inode->i_ino,
+				lock->fl.fl_type, lock->fl.fl_pid,
+				(long long)lock->fl.fl_start,
+				(long long)lock->fl.fl_end,
+				wait);
+
+
+	/* Get existing block (in case client is busy-waiting) */
+	block = nlmsvc_lookup_block(file, lock, 0);
+
+	lock->fl.fl_flags |= FL_LOCKD;
+
+again:
+	/* Lock file against concurrent access */
+	down(&file->f_sema);
+
+	if (!(conflock = posix_test_lock(&file->f_file, &lock->fl))) {
+		error = posix_lock_file(&file->f_file, &lock->fl, 0);
+
+		if (block)
+			nlmsvc_delete_block(block, 0);
+		up(&file->f_sema);
+
+		dprintk("lockd: posix_lock_file returned %d\n", -error);
+		switch(-error) {
+		case 0:
+			return nlm_granted;
+		case EDEADLK:
+			return nlm_deadlock;
+		case EAGAIN:
+			return nlm_lck_denied;
+		default:			/* includes ENOLCK */
+			return nlm_lck_denied_nolocks;
+		}
+	}
+
+	if (!wait) {
+		up(&file->f_sema);
+		return nlm_lck_denied;
+	}
+
+	if (posix_locks_deadlock(&lock->fl, conflock)) {
+		up(&file->f_sema);
+		return nlm_deadlock;
+	}
+
+	/* If we don't have a block, create and initialize it. Then
+	 * retry because we may have slept in kmalloc. */
+	/* We have to release f_sema as nlmsvc_create_block may try to
+	 * claim it while doing host garbage collection */
+	if (block == NULL) {
+		up(&file->f_sema);
+		dprintk("lockd: blocking on this lock (allocating).\n");
+		if (!(block = nlmsvc_create_block(rqstp, file, lock, cookie)))
+			return nlm_lck_denied_nolocks;
+		goto again;
+	}
+
+	/* Append to list of blocked */
+	nlmsvc_insert_block(block, NLM_NEVER);
+
+	if (list_empty(&block->b_call.a_args.lock.fl.fl_block)) {
+		/* Now add block to block list of the conflicting lock
+		   if we haven't done so. */
+		dprintk("lockd: blocking on this lock.\n");
+		posix_block_lock(conflock, &block->b_call.a_args.lock.fl);
+	}
+
+	up(&file->f_sema);
+	return nlm_lck_blocked;
+}
+
+/*
+ * Test for presence of a conflicting lock.
+ */
+u32
+nlmsvc_testlock(struct nlm_file *file, struct nlm_lock *lock,
+				       struct nlm_lock *conflock)
+{
+	struct file_lock	*fl;
+
+	dprintk("lockd: nlmsvc_testlock(%04x/%ld, ty=%d, %Ld-%Ld)\n",
+				file->f_file.f_dentry->d_inode->i_dev,
+				file->f_file.f_dentry->d_inode->i_ino,
+				lock->fl.fl_type,
+				(long long)lock->fl.fl_start,
+				(long long)lock->fl.fl_end);
+
+	if ((fl = posix_test_lock(&file->f_file, &lock->fl)) != NULL) {
+		dprintk("lockd: conflicting lock(ty=%d, %Ld-%Ld)\n",
+				fl->fl_type, (long long)fl->fl_start,
+				(long long)fl->fl_end);
+		conflock->caller = "somehost";	/* FIXME */
+		conflock->oh.len = 0;		/* don't return OH info */
+		conflock->fl = *fl;
+		return nlm_lck_denied;
+	}
+
+	return nlm_granted;
+}
+
+/*
+ * Remove a lock.
+ * This implies a CANCEL call: We send a GRANT_MSG, the client replies
+ * with a GRANT_RES call which gets lost, and calls UNLOCK immediately
+ * afterwards. In this case the block will still be there, and hence
+ * must be removed.
+ */
+u32
+nlmsvc_unlock(struct nlm_file *file, struct nlm_lock *lock)
+{
+	int	error;
+
+	dprintk("lockd: nlmsvc_unlock(%04x/%ld, pi=%d, %Ld-%Ld)\n",
+				file->f_file.f_dentry->d_inode->i_dev,
+				file->f_file.f_dentry->d_inode->i_ino,
+				lock->fl.fl_pid,
+				(long long)lock->fl.fl_start,
+				(long long)lock->fl.fl_end);
+
+	/* First, cancel any lock that might be there */
+	nlmsvc_cancel_blocked(file, lock);
+
+	lock->fl.fl_type = F_UNLCK;
+	error = posix_lock_file(&file->f_file, &lock->fl, 0);
+
+	return (error < 0)? nlm_lck_denied_nolocks : nlm_granted;
+}
+
+/*
+ * Cancel a previously blocked request.
+ *
+ * A cancel request always overrides any grant that may currently
+ * be in progress.
+ * The calling procedure must check whether the file can be closed.
+ */
+u32
+nlmsvc_cancel_blocked(struct nlm_file *file, struct nlm_lock *lock)
+{
+	struct nlm_block	*block;
+
+	dprintk("lockd: nlmsvc_cancel(%04x/%ld, pi=%d, %Ld-%Ld)\n",
+				file->f_file.f_dentry->d_inode->i_dev,
+				file->f_file.f_dentry->d_inode->i_ino,
+				lock->fl.fl_pid,
+				(long long)lock->fl.fl_start,
+				(long long)lock->fl.fl_end);
+
+	down(&file->f_sema);
+	if ((block = nlmsvc_lookup_block(file, lock, 1)) != NULL)
+		nlmsvc_delete_block(block, 1);
+	up(&file->f_sema);
+	return nlm_granted;
+}
+
+/*
+ * Unblock a blocked lock request. This is a callback invoked from the
+ * VFS layer when a lock on which we blocked is removed.
+ *
+ * This function doesn't grant the blocked lock instantly, but rather moves
+ * the block to the head of nlm_blocked where it can be picked up by lockd.
+ */
+static void
+nlmsvc_notify_blocked(struct file_lock *fl)
+{
+	struct nlm_block	**bp, *block;
+
+	dprintk("lockd: VFS unblock notification for block %p\n", fl);
+	posix_unblock_lock(fl);
+	for (bp = &nlm_blocked; (block = *bp); bp = &block->b_next) {
+		if (nlm_compare_locks(&block->b_call.a_args.lock.fl, fl)) {
+			nlmsvc_insert_block(block, 0);
+			svc_wake_up(block->b_daemon);
+			return;
+		}
+	}
+
+	printk(KERN_WARNING "lockd: notification for unknown block!\n");
+}
+
+/*
+ * Try to claim a lock that was previously blocked.
+ *
+ * Note that we use both the RPC_GRANTED_MSG call _and_ an async
+ * RPC thread when notifying the client. This seems like overkill...
+ * Here's why:
+ *  -	we don't want to use a synchronous RPC thread, otherwise
+ *	we might find ourselves hanging on a dead portmapper.
+ *  -	Some lockd implementations (e.g. HP) don't react to
+ *	RPC_GRANTED calls; they seem to insist on RPC_GRANTED_MSG calls.
+ */
+static void
+nlmsvc_grant_blocked(struct nlm_block *block)
+{
+	struct nlm_file		*file = block->b_file;
+	struct nlm_lock		*lock = &block->b_call.a_args.lock;
+	struct file_lock	*conflock;
+	int			error;
+
+	dprintk("lockd: grant blocked lock %p\n", block);
+
+	/* First thing is lock the file */
+	down(&file->f_sema);
+
+	/* Unlink block request from list */
+	nlmsvc_remove_block(block);
+
+	/* If b_granted is true this means we've been here before.
+	 * Just retry the grant callback, possibly refreshing the RPC
+	 * binding */
+	if (block->b_granted) {
+		nlm_rebind_host(block->b_call.a_host);
+		goto callback;
+	}
+
+	/* Try the lock operation again */
+	if ((conflock = posix_test_lock(&file->f_file, &lock->fl)) != NULL) {
+		/* Bummer, we blocked again */
+		dprintk("lockd: lock still blocked\n");
+		nlmsvc_insert_block(block, NLM_NEVER);
+		posix_block_lock(conflock, &lock->fl);
+		up(&file->f_sema);
+		return;
+	}
+
+	/* Alright, no conflicting lock. Now lock it for real. If the
+	 * following yields an error, this is most probably due to low
+	 * memory. Retry the lock in a few seconds.
+	 */
+	if ((error = posix_lock_file(&file->f_file, &lock->fl, 0)) < 0) {
+		printk(KERN_WARNING "lockd: unexpected error %d in %s!\n",
+				-error, __FUNCTION__);
+		nlmsvc_insert_block(block, 10 * HZ);
+		up(&file->f_sema);
+		return;
+	}
+
+callback:
+	/* Lock was granted by VFS. */
+	dprintk("lockd: GRANTing blocked lock.\n");
+	block->b_granted = 1;
+	block->b_incall  = 1;
+
+	/* Schedule next grant callback in 30 seconds */
+	nlmsvc_insert_block(block, 30 * HZ);
+
+	/* Call the client */
+	nlm_get_host(block->b_call.a_host);
+	if (nlmsvc_async_call(&block->b_call, NLMPROC_GRANTED_MSG,
+						nlmsvc_grant_callback) < 0)
+		nlm_release_host(block->b_call.a_host);
+	up(&file->f_sema);
+}
+
+/*
+ * This is the callback from the RPC layer when the NLM_GRANTED_MSG
+ * RPC call has succeeded or timed out.
+ * Like all RPC callbacks, it is invoked by the rpciod process, so it
+ * better not sleep. Therefore, we put the blocked lock on the nlm_blocked
+ * chain once more in order to have it removed by lockd itself (which can
+ * then sleep on the file semaphore without disrupting e.g. the nfs client).
+ */
+static void
+nlmsvc_grant_callback(struct rpc_task *task)
+{
+	struct nlm_rqst		*call = (struct nlm_rqst *) task->tk_calldata;
+	struct nlm_block	*block;
+	unsigned long		timeout;
+	struct sockaddr_in	*peer_addr = RPC_PEERADDR(task->tk_client);
+
+	dprintk("lockd: GRANT_MSG RPC callback\n");
+	dprintk("callback: looking for cookie %s, host %u.%u.%u.%u\n", 
+		nlmdbg_cookie2a(&call->a_args.cookie),
+		NIPQUAD(peer_addr->sin_addr.s_addr));
+	if (!(block = nlmsvc_find_block(&call->a_args.cookie, peer_addr))) {
+		dprintk("lockd: no block for cookie %s, host %u.%u.%u.%u\n",
+				nlmdbg_cookie2a(&call->a_args.cookie),
+				NIPQUAD(peer_addr->sin_addr.s_addr));
+		return;
+	}
+
+	/* Technically, we should down the file semaphore here. Since we
+	 * move the block towards the head of the queue only, no harm
+	 * can be done, though. */
+	if (task->tk_status < 0) {
+		/* RPC error: Re-insert for retransmission */
+		timeout = 10 * HZ;
+	} else if (block->b_done) {
+		/* Block already removed, kill it for real */
+		timeout = 0;
+	} else {
+		/* Call was successful, now wait for client callback */
+		timeout = 60 * HZ;
+	}
+	nlmsvc_insert_block(block, timeout);
+	svc_wake_up(block->b_daemon);
+	block->b_incall = 0;
+
+	nlm_release_host(call->a_host);
+}
+
+/*
+ * We received a GRANT_RES callback. Try to find the corresponding
+ * block.
+ */
+void
+nlmsvc_grant_reply(struct svc_rqst *rqstp, struct nlm_cookie *cookie, u32 status)
+{
+	struct nlm_block	*block;
+	struct nlm_file		*file;
+
+	dprintk("grant_reply: looking for cookie %x, host (%08x), s=%d \n", 
+		*(unsigned int *)(cookie->data), 
+		ntohl(rqstp->rq_addr.sin_addr.s_addr), status);
+	if (!(block = nlmsvc_find_block(cookie, &rqstp->rq_addr)))
+		return;
+	file = block->b_file;
+
+	file->f_count++;
+	down(&file->f_sema);
+	if ((block = nlmsvc_find_block(cookie,&rqstp->rq_addr)) != NULL) {
+		if (status == NLM_LCK_DENIED_GRACE_PERIOD) {
+			/* Try again in a couple of seconds */
+			nlmsvc_insert_block(block, 10 * HZ);
+			block = NULL;
+		} else {
+			/* Lock is now held by client, or has been rejected.
+			 * In both cases, the block should be removed. */
+			up(&file->f_sema);
+			if (status == NLM_LCK_GRANTED)
+				nlmsvc_delete_block(block, 0);
+			else
+				nlmsvc_delete_block(block, 1);
+		}
+	}
+	if (!block)
+		up(&file->f_sema);
+	nlm_release_file(file);
+}
+
+/*
+ * Retry all blocked locks that have been notified. This is where lockd
+ * picks up locks that can be granted, or grant notifications that must
+ * be retransmitted.
+ */
+unsigned long
+nlmsvc_retry_blocked(void)
+{
+	struct nlm_block	*block;
+
+	dprintk("nlmsvc_retry_blocked(%p, when=%ld)\n",
+			nlm_blocked,
+			nlm_blocked? nlm_blocked->b_when : 0);
+	while ((block = nlm_blocked)) {
+		if (block->b_when == NLM_NEVER)
+			break;
+	        if (time_after(block->b_when,jiffies))
+			break;
+		dprintk("nlmsvc_retry_blocked(%p, when=%ld, done=%d)\n",
+			block, block->b_when, block->b_done);
+		if (block->b_done)
+			nlmsvc_delete_block(block, 0);
+		else
+			nlmsvc_grant_blocked(block);
+	}
+
+	if ((block = nlm_blocked) && block->b_when != NLM_NEVER)
+		return (block->b_when - jiffies);
+
+	return MAX_SCHEDULE_TIMEOUT;
+}
diff --git a/fs/lockd/svcproc.c b/fs/lockd/svcproc.c
new file mode 100644
index 00000000000000..8759aca43742fc
--- /dev/null
+++ b/fs/lockd/svcproc.c
@@ -0,0 +1,616 @@
+/*
+ * linux/fs/lockd/svcproc.c
+ *
+ * Lockd server procedures. We don't implement the NLM_*_RES 
+ * procedures because we don't use the async procedures.
+ *
+ * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
+ */
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/in.h>
+#include <linux/sunrpc/svc.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/nfsd/nfsd.h>
+#include <linux/lockd/lockd.h>
+#include <linux/lockd/share.h>
+#include <linux/lockd/sm_inter.h>
+
+
+#define NLMDBG_FACILITY		NLMDBG_CLIENT
+
+static u32	nlmsvc_callback(struct svc_rqst *, u32, struct nlm_res *);
+static void	nlmsvc_callback_exit(struct rpc_task *);
+
+#ifdef CONFIG_LOCKD_V4
+static u32
+cast_to_nlm(u32 status, u32 vers)
+{
+	/* Note: status is assumed to be in network byte order !!! */
+	if (vers != 4){
+		switch (status) {
+		case nlm_granted:
+		case nlm_lck_denied:
+		case nlm_lck_denied_nolocks:
+		case nlm_lck_blocked:
+		case nlm_lck_denied_grace_period:
+			break;
+		case nlm4_deadlock:
+			status = nlm_lck_denied;
+			break;
+		default:
+			status = nlm_lck_denied_nolocks;
+		}
+	}
+
+	return (status);
+}
+#define	cast_status(status) (cast_to_nlm(status, rqstp->rq_vers))
+#else
+#define cast_status(status) (status)
+#endif
+
+/*
+ * Obtain client and file from arguments
+ */
+static u32
+nlmsvc_retrieve_args(struct svc_rqst *rqstp, struct nlm_args *argp,
+			struct nlm_host **hostp, struct nlm_file **filp)
+{
+	struct nlm_host		*host = NULL;
+	struct nlm_file		*file = NULL;
+	struct nlm_lock		*lock = &argp->lock;
+	u32			error;
+
+	/* nfsd callbacks must have been installed for this procedure */
+	if (!nlmsvc_ops)
+		return nlm_lck_denied_nolocks;
+
+	/* Obtain handle for client host */
+	if (rqstp->rq_client == NULL) {
+		printk(KERN_NOTICE
+			"lockd: unauthenticated request from (%08x:%d)\n",
+			ntohl(rqstp->rq_addr.sin_addr.s_addr),
+			ntohs(rqstp->rq_addr.sin_port));
+		return nlm_lck_denied_nolocks;
+	}
+
+	/* Obtain host handle */
+	if (!(host = nlmsvc_lookup_host(rqstp))
+	 || (argp->monitor && !host->h_monitored && nsm_monitor(host) < 0))
+		goto no_locks;
+	*hostp = host;
+
+	/* Obtain file pointer. Not used by FREE_ALL call. */
+	if (filp != NULL) {
+		if ((error = nlm_lookup_file(rqstp, &file, &lock->fh)) != 0)
+			goto no_locks;
+		*filp = file;
+
+		/* Set up the missing parts of the file_lock structure */
+		lock->fl.fl_file  = &file->f_file;
+		lock->fl.fl_owner = (fl_owner_t) host;
+	}
+
+	return 0;
+
+no_locks:
+	if (host)
+		nlm_release_host(host);
+	return nlm_lck_denied_nolocks;
+}
+
+/*
+ * NULL: Test for presence of service
+ */
+static int
+nlmsvc_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
+{
+	dprintk("lockd: NULL          called\n");
+	return rpc_success;
+}
+
+/*
+ * TEST: Check for conflicting lock
+ */
+static int
+nlmsvc_proc_test(struct svc_rqst *rqstp, struct nlm_args *argp,
+				         struct nlm_res  *resp)
+{
+	struct nlm_host	*host;
+	struct nlm_file	*file;
+
+	dprintk("lockd: TEST          called\n");
+	resp->cookie = argp->cookie;
+
+	/* Don't accept test requests during grace period */
+	if (nlmsvc_grace_period) {
+		resp->status = nlm_lck_denied_grace_period;
+		return rpc_success;
+	}
+
+	/* Obtain client and file */
+	if ((resp->status = nlmsvc_retrieve_args(rqstp, argp, &host, &file)))
+		return rpc_success;
+
+	/* Now check for conflicting locks */
+	resp->status = cast_status(nlmsvc_testlock(file, &argp->lock, &resp->lock));
+
+	dprintk("lockd: TEST          status %d vers %d\n",
+		ntohl(resp->status), rqstp->rq_vers);
+	nlm_release_host(host);
+	nlm_release_file(file);
+	return rpc_success;
+}
+
+static int
+nlmsvc_proc_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
+				         struct nlm_res  *resp)
+{
+	struct nlm_host	*host;
+	struct nlm_file	*file;
+
+	dprintk("lockd: LOCK          called\n");
+
+	resp->cookie = argp->cookie;
+
+	/* Don't accept new lock requests during grace period */
+	if (nlmsvc_grace_period && !argp->reclaim) {
+		resp->status = nlm_lck_denied_grace_period;
+		return rpc_success;
+	}
+
+	/* Obtain client and file */
+	if ((resp->status = nlmsvc_retrieve_args(rqstp, argp, &host, &file)))
+		return rpc_success;
+
+#if 0
+	/* If supplied state doesn't match current state, we assume it's
+	 * an old request that time-warped somehow. Any error return would
+	 * do in this case because it's irrelevant anyway.
+	 *
+	 * NB: We don't retrieve the remote host's state yet.
+	 */
+	if (host->h_nsmstate && host->h_nsmstate != argp->state) {
+		resp->status = nlm_lck_denied_nolocks;
+	} else
+#endif
+
+	/* Now try to lock the file */
+	resp->status = cast_status(nlmsvc_lock(rqstp, file, &argp->lock,
+					       argp->block, &argp->cookie));
+
+	dprintk("lockd: LOCK          status %d\n", ntohl(resp->status));
+	nlm_release_host(host);
+	nlm_release_file(file);
+	return rpc_success;
+}
+
+static int
+nlmsvc_proc_cancel(struct svc_rqst *rqstp, struct nlm_args *argp,
+				           struct nlm_res  *resp)
+{
+	struct nlm_host	*host;
+	struct nlm_file	*file;
+
+	dprintk("lockd: CANCEL        called\n");
+
+	resp->cookie = argp->cookie;
+
+	/* Don't accept requests during grace period */
+	if (nlmsvc_grace_period) {
+		resp->status = nlm_lck_denied_grace_period;
+		return rpc_success;
+	}
+
+	/* Obtain client and file */
+	if ((resp->status = nlmsvc_retrieve_args(rqstp, argp, &host, &file)))
+		return rpc_success;
+
+	/* Try to cancel request. */
+	resp->status = cast_status(nlmsvc_cancel_blocked(file, &argp->lock));
+
+	dprintk("lockd: CANCEL        status %d\n", ntohl(resp->status));
+	nlm_release_host(host);
+	nlm_release_file(file);
+	return rpc_success;
+}
+
+/*
+ * UNLOCK: release a lock
+ */
+static int
+nlmsvc_proc_unlock(struct svc_rqst *rqstp, struct nlm_args *argp,
+				           struct nlm_res  *resp)
+{
+	struct nlm_host	*host;
+	struct nlm_file	*file;
+
+	dprintk("lockd: UNLOCK        called\n");
+
+	resp->cookie = argp->cookie;
+
+	/* Don't accept new lock requests during grace period */
+	if (nlmsvc_grace_period) {
+		resp->status = nlm_lck_denied_grace_period;
+		return rpc_success;
+	}
+
+	/* Obtain client and file */
+	if ((resp->status = nlmsvc_retrieve_args(rqstp, argp, &host, &file)))
+		return rpc_success;
+
+	/* Now try to remove the lock */
+	resp->status = cast_status(nlmsvc_unlock(file, &argp->lock));
+
+	dprintk("lockd: UNLOCK        status %d\n", ntohl(resp->status));
+	nlm_release_host(host);
+	nlm_release_file(file);
+	return rpc_success;
+}
+
+/*
+ * GRANTED: A server calls us to tell that a process' lock request
+ * was granted
+ */
+static int
+nlmsvc_proc_granted(struct svc_rqst *rqstp, struct nlm_args *argp,
+				            struct nlm_res  *resp)
+{
+	resp->cookie = argp->cookie;
+
+	dprintk("lockd: GRANTED       called\n");
+	resp->status = nlmclnt_grant(&argp->lock);
+	dprintk("lockd: GRANTED       status %d\n", ntohl(resp->status));
+	return rpc_success;
+}
+
+/*
+ * `Async' versions of the above service routines. They aren't really,
+ * because we send the callback before the reply proper. I hope this
+ * doesn't break any clients.
+ */
+static int
+nlmsvc_proc_test_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
+					     void	     *resp)
+{
+	struct nlm_res	res;
+	u32		stat;
+
+	dprintk("lockd: TEST_MSG      called\n");
+
+	memset(&res, 0, sizeof(res));
+
+	if ((stat = nlmsvc_proc_test(rqstp, argp, &res)) == 0)
+		stat = nlmsvc_callback(rqstp, NLMPROC_TEST_RES, &res);
+	return stat;
+}
+
+static int
+nlmsvc_proc_lock_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
+					     void	     *resp)
+{
+	struct nlm_res	res;
+	u32		stat;
+
+	dprintk("lockd: LOCK_MSG      called\n");
+
+	if ((stat = nlmsvc_proc_lock(rqstp, argp, &res)) == 0)
+		stat = nlmsvc_callback(rqstp, NLMPROC_LOCK_RES, &res);
+	return stat;
+}
+
+static int
+nlmsvc_proc_cancel_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
+					       void	       *resp)
+{
+	struct nlm_res	res;
+	u32		stat;
+
+	dprintk("lockd: CANCEL_MSG    called\n");
+
+	if ((stat = nlmsvc_proc_cancel(rqstp, argp, &res)) == 0)
+		stat = nlmsvc_callback(rqstp, NLMPROC_CANCEL_RES, &res);
+	return stat;
+}
+
+static int
+nlmsvc_proc_unlock_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
+                                               void            *resp)
+{
+	struct nlm_res	res;
+	u32		stat;
+
+	dprintk("lockd: UNLOCK_MSG    called\n");
+
+	if ((stat = nlmsvc_proc_unlock(rqstp, argp, &res)) == 0)
+		stat = nlmsvc_callback(rqstp, NLMPROC_UNLOCK_RES, &res);
+	return stat;
+}
+
+static int
+nlmsvc_proc_granted_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
+                                                void            *resp)
+{
+	struct nlm_res	res;
+	u32		stat;
+
+	dprintk("lockd: GRANTED_MSG   called\n");
+
+	if ((stat = nlmsvc_proc_granted(rqstp, argp, &res)) == 0)
+		stat = nlmsvc_callback(rqstp, NLMPROC_GRANTED_RES, &res);
+	return stat;
+}
+
+/*
+ * SHARE: create a DOS share or alter existing share.
+ */
+static int
+nlmsvc_proc_share(struct svc_rqst *rqstp, struct nlm_args *argp,
+				          struct nlm_res  *resp)
+{
+	struct nlm_host	*host;
+	struct nlm_file	*file;
+
+	dprintk("lockd: SHARE         called\n");
+
+	resp->cookie = argp->cookie;
+
+	/* Don't accept new lock requests during grace period */
+	if (nlmsvc_grace_period && !argp->reclaim) {
+		resp->status = nlm_lck_denied_grace_period;
+		return rpc_success;
+	}
+
+	/* Obtain client and file */
+	if ((resp->status = nlmsvc_retrieve_args(rqstp, argp, &host, &file)))
+		return rpc_success;
+
+	/* Now try to create the share */
+	resp->status = cast_status(nlmsvc_share_file(host, file, argp));
+
+	dprintk("lockd: SHARE         status %d\n", ntohl(resp->status));
+	nlm_release_host(host);
+	nlm_release_file(file);
+	return rpc_success;
+}
+
+/*
+ * UNSHARE: Release a DOS share.
+ */
+static int
+nlmsvc_proc_unshare(struct svc_rqst *rqstp, struct nlm_args *argp,
+				            struct nlm_res  *resp)
+{
+	struct nlm_host	*host;
+	struct nlm_file	*file;
+
+	dprintk("lockd: UNSHARE       called\n");
+
+	resp->cookie = argp->cookie;
+
+	/* Don't accept requests during grace period */
+	if (nlmsvc_grace_period) {
+		resp->status = nlm_lck_denied_grace_period;
+		return rpc_success;
+	}
+
+	/* Obtain client and file */
+	if ((resp->status = nlmsvc_retrieve_args(rqstp, argp, &host, &file)))
+		return rpc_success;
+
+	/* Now try to unshare the file */
+	resp->status = cast_status(nlmsvc_unshare_file(host, file, argp));
+
+	dprintk("lockd: UNSHARE       status %d\n", ntohl(resp->status));
+	nlm_release_host(host);
+	nlm_release_file(file);
+	return rpc_success;
+}
+
+/*
+ * NM_LOCK: Create an unmonitored lock
+ */
+static int
+nlmsvc_proc_nm_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
+				            struct nlm_res  *resp)
+{
+	dprintk("lockd: NM_LOCK       called\n");
+
+	argp->monitor = 0;		/* just clean the monitor flag */
+	return nlmsvc_proc_lock(rqstp, argp, resp);
+}
+
+/*
+ * FREE_ALL: Release all locks and shares held by client
+ */
+static int
+nlmsvc_proc_free_all(struct svc_rqst *rqstp, struct nlm_args *argp,
+					     void            *resp)
+{
+	struct nlm_host	*host;
+
+	/* Obtain client */
+	if (nlmsvc_retrieve_args(rqstp, argp, &host, NULL))
+		return rpc_success;
+
+	nlmsvc_free_host_resources(host);
+	nlm_release_host(host);
+	return rpc_success;
+}
+
+/*
+ * SM_NOTIFY: private callback from statd (not part of official NLM proto)
+ */
+static int
+nlmsvc_proc_sm_notify(struct svc_rqst *rqstp, struct nlm_reboot *argp,
+					      void	        *resp)
+{
+	struct sockaddr_in	saddr = rqstp->rq_addr;
+	int			vers = rqstp->rq_vers;
+	int			prot = rqstp->rq_prot;
+	struct nlm_host		*host;
+
+	dprintk("lockd: SM_NOTIFY     called\n");
+	if (saddr.sin_addr.s_addr != htonl(INADDR_LOOPBACK)
+	 || ntohs(saddr.sin_port) >= 1024) {
+		printk(KERN_WARNING
+			"lockd: rejected NSM callback from %08x:%d\n",
+			ntohl(rqstp->rq_addr.sin_addr.s_addr),
+			ntohs(rqstp->rq_addr.sin_port));
+		return rpc_system_err;
+	}
+
+	/* Obtain the host pointer for this NFS server and try to
+	 * reclaim all locks we hold on this server.
+	 */
+	saddr.sin_addr.s_addr = argp->addr;
+	if ((host = nlmclnt_lookup_host(&saddr, prot, vers)) != NULL) {
+		nlmclnt_recovery(host, argp->state);
+		nlm_release_host(host);
+	}
+
+	/* If we run on an NFS server, delete all locks held by the client */
+	if (nlmsvc_ops != NULL) {
+		struct svc_client	*clnt;
+		saddr.sin_addr.s_addr = argp->addr;
+		if ((clnt = nlmsvc_ops->exp_getclient(&saddr)) != NULL 
+		 && (host = nlm_lookup_host(clnt, &saddr, 0, 0)) != NULL) {
+			nlmsvc_free_host_resources(host);
+		}
+		nlm_release_host(host);
+	}
+
+	return rpc_success;
+}
+
+/*
+ * client sent a GRANTED_RES, let's remove the associated block
+ */
+static int
+nlmsvc_proc_granted_res(struct svc_rqst *rqstp, struct nlm_res  *argp,
+                                                void            *resp)
+{
+	if (!nlmsvc_ops)
+		return rpc_success;
+
+	dprintk("lockd: GRANTED_RES   called\n");
+
+	nlmsvc_grant_reply(rqstp, &argp->cookie, argp->status);
+	return rpc_success;
+}
+
+/*
+ * This is the generic lockd callback for async RPC calls
+ */
+static u32
+nlmsvc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_res *resp)
+{
+	struct nlm_host	*host;
+	struct nlm_rqst	*call;
+
+	if (!(call = nlmclnt_alloc_call()))
+		return rpc_system_err;
+
+	host = nlmclnt_lookup_host(&rqstp->rq_addr,
+				rqstp->rq_prot, rqstp->rq_vers);
+	if (!host) {
+		kfree(call);
+		return rpc_system_err;
+	}
+
+	call->a_flags = RPC_TASK_ASYNC;
+	call->a_host  = host;
+	memcpy(&call->a_args, resp, sizeof(*resp));
+
+	if (nlmsvc_async_call(call, proc, nlmsvc_callback_exit) < 0)
+		goto error;
+
+	return rpc_success;
+ error:
+	nlm_release_host(host);
+	kfree(call);
+	return rpc_system_err;
+}
+
+static void
+nlmsvc_callback_exit(struct rpc_task *task)
+{
+	struct nlm_rqst	*call = (struct nlm_rqst *) task->tk_calldata;
+
+	if (task->tk_status < 0) {
+		dprintk("lockd: %4d callback failed (errno = %d)\n",
+					task->tk_pid, -task->tk_status);
+	}
+	nlm_release_host(call->a_host);
+	kfree(call);
+}
+
+/*
+ * NLM Server procedures.
+ */
+
+#define nlmsvc_encode_norep	nlmsvc_encode_void
+#define nlmsvc_decode_norep	nlmsvc_decode_void
+#define nlmsvc_decode_testres	nlmsvc_decode_void
+#define nlmsvc_decode_lockres	nlmsvc_decode_void
+#define nlmsvc_decode_unlockres	nlmsvc_decode_void
+#define nlmsvc_decode_cancelres	nlmsvc_decode_void
+#define nlmsvc_decode_grantedres	nlmsvc_decode_void
+
+#define nlmsvc_proc_none	nlmsvc_proc_null
+#define nlmsvc_proc_test_res	nlmsvc_proc_null
+#define nlmsvc_proc_lock_res	nlmsvc_proc_null
+#define nlmsvc_proc_cancel_res	nlmsvc_proc_null
+#define nlmsvc_proc_unlock_res	nlmsvc_proc_null
+
+struct nlm_void			{ int dummy; };
+
+#define PROC(name, xargt, xrest, argt, rest, respsize)	\
+ { (svc_procfunc) nlmsvc_proc_##name,	\
+   (kxdrproc_t) nlmsvc_decode_##xargt,	\
+   (kxdrproc_t) nlmsvc_encode_##xrest,	\
+   NULL,				\
+   sizeof(struct nlm_##argt),		\
+   sizeof(struct nlm_##rest),		\
+   0,					\
+   0,					\
+   respsize,				\
+ }
+
+#define	Ck	(1+8)	/* cookie */
+#define	St	1	/* status */
+#define	No	(1+1024/4) /* Net Obj */
+#define	Rg	2	/* range - offset + size */
+
+struct svc_procedure		nlmsvc_procedures[] = {
+  PROC(null,		void,		void,		void,	void, 1),
+  PROC(test,		testargs,	testres,	args,	res, Ck+St+2+No+Rg),
+  PROC(lock,		lockargs,	res,		args,	res, Ck+St),
+  PROC(cancel,		cancargs,	res,		args,	res, Ck+St),
+  PROC(unlock,		unlockargs,	res,		args,	res, Ck+St),
+  PROC(granted,		testargs,	res,		args,	res, Ck+St),
+  PROC(test_msg,	testargs,	norep,		args,	void, 1),
+  PROC(lock_msg,	lockargs,	norep,		args,	void, 1),
+  PROC(cancel_msg,	cancargs,	norep,		args,	void, 1),
+  PROC(unlock_msg,	unlockargs,	norep,		args,	void, 1),
+  PROC(granted_msg,	testargs,	norep,		args,	void, 1),
+  PROC(test_res,	testres,	norep,		res,	void, 1),
+  PROC(lock_res,	lockres,	norep,		res,	void, 1),
+  PROC(cancel_res,	cancelres,	norep,		res,	void, 1),
+  PROC(unlock_res,	unlockres,	norep,		res,	void, 1),
+  PROC(granted_res,	res,		norep,		res,	void, 1),
+  /* statd callback */
+  PROC(sm_notify,	reboot,		void,		reboot,	void, 1),
+  PROC(none,		void,		void,		void,	void, 1),
+  PROC(none,		void,		void,		void,	void, 1),
+  PROC(none,		void,		void,		void,	void, 1),
+  PROC(share,		shareargs,	shareres,	args,	res, Ck+St+1),
+  PROC(unshare,		shareargs,	shareres,	args,	res, Ck+St+1),
+  PROC(nm_lock,		lockargs,	res,		args,	res, Ck+St),
+  PROC(free_all,	notify,		void,		args,	void, 0),
+
+};
diff --git a/fs/lockd/svcshare.c b/fs/lockd/svcshare.c
new file mode 100644
index 00000000000000..73fbb1ba414b77
--- /dev/null
+++ b/fs/lockd/svcshare.c
@@ -0,0 +1,111 @@
+/*
+ * linux/fs/lockd/svcshare.c
+ *
+ * Management of DOS shares.
+ *
+ * Copyright (C) 1996 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#include <linux/sched.h>
+#include <linux/unistd.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+
+#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/svc.h>
+#include <linux/lockd/lockd.h>
+#include <linux/lockd/share.h>
+
+static inline int
+nlm_cmp_owner(struct nlm_share *share, struct xdr_netobj *oh)
+{
+	return share->s_owner.len == oh->len
+	    && !memcmp(share->s_owner.data, oh->data, oh->len);
+}
+
+u32
+nlmsvc_share_file(struct nlm_host *host, struct nlm_file *file,
+			struct nlm_args *argp)
+{
+	struct nlm_share	*share;
+	struct xdr_netobj	*oh = &argp->lock.oh;
+	u8			*ohdata;
+
+	for (share = file->f_shares; share; share = share->s_next) {
+		if (share->s_host == host && nlm_cmp_owner(share, oh))
+			goto update;
+		if ((argp->fsm_access & share->s_mode)
+		 || (argp->fsm_mode   & share->s_access ))
+			return nlm_lck_denied;
+	}
+
+	share = (struct nlm_share *) kmalloc(sizeof(*share) + oh->len,
+						GFP_KERNEL);
+	if (share == NULL)
+		return nlm_lck_denied_nolocks;
+
+	/* Copy owner handle */
+	ohdata = (u8 *) (share + 1);
+	memcpy(ohdata, oh->data, oh->len);
+
+	share->s_file	    = file;
+	share->s_host       = host;
+	share->s_owner.data = ohdata;
+	share->s_owner.len  = oh->len;
+	share->s_next       = file->f_shares;
+	file->f_shares      = share;
+
+update:
+	share->s_access = argp->fsm_access;
+	share->s_mode   = argp->fsm_mode;
+	return nlm_granted;
+}
+
+/*
+ * Delete a share.
+ */
+u32
+nlmsvc_unshare_file(struct nlm_host *host, struct nlm_file *file,
+			struct nlm_args *argp)
+{
+	struct nlm_share	*share, **shpp;
+	struct xdr_netobj	*oh = &argp->lock.oh;
+
+	for (shpp = &file->f_shares; (share = *shpp); shpp = &share->s_next) {
+		if (share->s_host == host && nlm_cmp_owner(share, oh)) {
+			*shpp = share->s_next;
+			kfree(share);
+			return nlm_granted;
+		}
+	}
+
+	/* X/Open spec says return success even if there was no
+	 * corresponding share. */
+	return nlm_granted;
+}
+
+/*
+ * Traverse all shares for a given file (and host).
+ * NLM_ACT_CHECK is handled by nlmsvc_inspect_file.
+ */
+int
+nlmsvc_traverse_shares(struct nlm_host *host, struct nlm_file *file, int action)
+{
+	struct nlm_share	*share, **shpp;
+
+	shpp = &file->f_shares;
+	while ((share = *shpp) !=  NULL) {
+		if (action == NLM_ACT_MARK)
+			share->s_host->h_inuse = 1;
+		else if (action == NLM_ACT_UNLOCK) {
+			if (host == NULL || host == share->s_host) {
+				*shpp = share->s_next;
+				kfree(share);
+				continue;
+			}
+		}
+		shpp = &share->s_next;
+	}
+
+	return 0;
+}
diff --git a/fs/lockd/svcsubs.c b/fs/lockd/svcsubs.c
new file mode 100644
index 00000000000000..e7bcab77540c39
--- /dev/null
+++ b/fs/lockd/svcsubs.c
@@ -0,0 +1,311 @@
+/*
+ * linux/fs/lockd/svcsubs.c
+ *
+ * Various support routines for the NLM server.
+ *
+ * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
+ */
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/sched.h>
+#include <linux/in.h>
+#include <linux/sunrpc/svc.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/nfsd/nfsfh.h>
+#include <linux/nfsd/export.h>
+#include <linux/lockd/lockd.h>
+#include <linux/lockd/share.h>
+#include <linux/lockd/sm_inter.h>
+
+#define NLMDBG_FACILITY		NLMDBG_SVCSUBS
+
+
+/*
+ * Global file hash table
+ */
+#define FILE_HASH_BITS		5
+#define FILE_NRHASH		(1<<FILE_HASH_BITS)
+static struct nlm_file *	nlm_files[FILE_NRHASH];
+static DECLARE_MUTEX(nlm_file_sema);
+
+static inline unsigned int file_hash(struct nfs_fh *f)
+{
+	unsigned int tmp=0;
+	int i;
+	for (i=0; i<NFS2_FHSIZE;i++)
+		tmp += f->data[i];
+	return tmp & (FILE_NRHASH - 1);
+}
+
+/*
+ * Lookup file info. If it doesn't exist, create a file info struct
+ * and open a (VFS) file for the given inode.
+ *
+ * FIXME:
+ * Note that we open the file O_RDONLY even when creating write locks.
+ * This is not quite right, but for now, we assume the client performs
+ * the proper R/W checking.
+ */
+u32
+nlm_lookup_file(struct svc_rqst *rqstp, struct nlm_file **result,
+					struct nfs_fh *f)
+{
+	struct nlm_file	*file;
+	unsigned int	hash;
+	u32		nfserr;
+	u32		*fhp = (u32*)f->data;
+
+	dprintk("lockd: nlm_file_lookup(%08x %08x %08x %08x %08x %08x)\n",
+		fhp[0], fhp[1], fhp[2], fhp[3], fhp[4], fhp[5]);
+
+
+	hash = file_hash(f);
+
+	/* Lock file table */
+	down(&nlm_file_sema);
+
+	for (file = nlm_files[hash]; file; file = file->f_next)
+		if (!memcmp(&file->f_handle, f, sizeof(*f)))
+			goto found;
+
+	dprintk("lockd: creating file for (%08x %08x %08x %08x %08x %08x)\n",
+		fhp[0], fhp[1], fhp[2], fhp[3], fhp[4], fhp[5]);
+
+	nfserr = nlm_lck_denied_nolocks;
+	file = (struct nlm_file *) kmalloc(sizeof(*file), GFP_KERNEL);
+	if (!file)
+		goto out_unlock;
+
+	memset(file, 0, sizeof(*file));
+	memcpy(&file->f_handle, f, sizeof(struct nfs_fh));
+	file->f_hash = hash;
+	init_MUTEX(&file->f_sema);
+
+	/* Open the file. Note that this must not sleep for too long, else
+	 * we would lock up lockd:-) So no NFS re-exports, folks.
+	 *
+	 * We have to make sure we have the right credential to open
+	 * the file.
+	 */
+	if ((nfserr = nlmsvc_ops->fopen(rqstp, f, &file->f_file)) != 0) {
+		dprintk("lockd: open failed (nfserr %d)\n", ntohl(nfserr));
+		goto out_free;
+	}
+
+	file->f_next = nlm_files[hash];
+	nlm_files[hash] = file;
+
+found:
+	dprintk("lockd: found file %p (count %d)\n", file, file->f_count);
+	*result = file;
+	file->f_count++;
+	nfserr = 0;
+
+out_unlock:
+	up(&nlm_file_sema);
+	return nfserr;
+
+out_free:
+	kfree(file);
+#ifdef CONFIG_LOCKD_V4
+	if (nfserr == 1)
+		nfserr = nlm4_stale_fh;
+	else
+#endif
+	nfserr = nlm_lck_denied;
+	goto out_unlock;
+}
+
+/*
+ * Delete a file after having released all locks, blocks and shares
+ */
+static inline void
+nlm_delete_file(struct nlm_file *file)
+{
+	struct inode *inode = file->f_file.f_dentry->d_inode;
+	struct nlm_file	**fp, *f;
+
+	dprintk("lockd: closing file %s/%ld\n",
+		kdevname(inode->i_dev), inode->i_ino);
+	fp = nlm_files + file->f_hash;
+	while ((f = *fp) != NULL) {
+		if (f == file) {
+			*fp = file->f_next;
+			nlmsvc_ops->fclose(&file->f_file);
+			kfree(file);
+			return;
+		}
+		fp = &f->f_next;
+	}
+
+	printk(KERN_WARNING "lockd: attempt to release unknown file!\n");
+}
+
+/*
+ * Loop over all locks on the given file and perform the specified
+ * action.
+ */
+static int
+nlm_traverse_locks(struct nlm_host *host, struct nlm_file *file, int action)
+{
+	struct inode	 *inode = nlmsvc_file_inode(file);
+	struct file_lock *fl;
+	struct nlm_host	 *lockhost;
+
+again:
+	file->f_locks = 0;
+	for (fl = inode->i_flock; fl; fl = fl->fl_next) {
+		if (!(fl->fl_flags & FL_LOCKD))
+			continue;
+
+		/* update current lock count */
+		file->f_locks++;
+		lockhost = (struct nlm_host *) fl->fl_owner;
+		if (action == NLM_ACT_MARK)
+			lockhost->h_inuse = 1;
+		else if (action == NLM_ACT_CHECK)
+			return 1;
+		else if (action == NLM_ACT_UNLOCK) {
+			struct file_lock lock = *fl;
+
+			if (host && lockhost != host)
+				continue;
+
+			lock.fl_type  = F_UNLCK;
+			lock.fl_start = 0;
+			lock.fl_end   = OFFSET_MAX;
+			if (posix_lock_file(&file->f_file, &lock, 0) < 0) {
+				printk("lockd: unlock failure in %s:%d\n",
+						__FILE__, __LINE__);
+				return 1;
+			}
+			goto again;
+		}
+	}
+
+	return 0;
+}
+
+/*
+ * Operate on a single file
+ */
+static inline int
+nlm_inspect_file(struct nlm_host *host, struct nlm_file *file, int action)
+{
+	if (action == NLM_ACT_CHECK) {
+		/* Fast path for mark and sweep garbage collection */
+		if (file->f_count || file->f_blocks || file->f_shares)
+			return 1;
+	} else {
+		if (nlmsvc_traverse_blocks(host, file, action)
+		 || nlmsvc_traverse_shares(host, file, action))
+			return 1;
+	}
+	return nlm_traverse_locks(host, file, action);
+}
+
+/*
+ * Loop over all files in the file table.
+ */
+static int
+nlm_traverse_files(struct nlm_host *host, int action)
+{
+	struct nlm_file	*file, **fp;
+	int		i;
+
+	down(&nlm_file_sema);
+	for (i = 0; i < FILE_NRHASH; i++) {
+		fp = nlm_files + i;
+		while ((file = *fp) != NULL) {
+			/* Traverse locks, blocks and shares of this file
+			 * and update file->f_locks count */
+			if (nlm_inspect_file(host, file, action)) {
+				up(&nlm_file_sema);
+				return 1;
+			}
+
+			/* No more references to this file. Let go of it. */
+			if (!file->f_blocks && !file->f_locks
+			 && !file->f_shares && !file->f_count) {
+				*fp = file->f_next;
+				nlmsvc_ops->fclose(&file->f_file);
+				kfree(file);
+			} else {
+				fp = &file->f_next;
+			}
+		}
+	}
+	up(&nlm_file_sema);
+	return 0;
+}
+
+/*
+ * Release file. If there are no more remote locks on this file,
+ * close it and free the handle.
+ *
+ * Note that we can't do proper reference counting without major
+ * contortions because the code in fs/locks.c creates, deletes and
+ * splits locks without notification. Our only way is to walk the
+ * entire lock list each time we remove a lock.
+ */
+void
+nlm_release_file(struct nlm_file *file)
+{
+	dprintk("lockd: nlm_release_file(%p, ct = %d)\n",
+				file, file->f_count);
+
+	/* Lock file table */
+	down(&nlm_file_sema);
+
+	/* If there are no more locks etc, delete the file */
+	if(--file->f_count == 0) {
+		if(!nlm_inspect_file(NULL, file, NLM_ACT_CHECK))
+			nlm_delete_file(file);
+	}
+
+	up(&nlm_file_sema);
+}
+
+/*
+ * Mark all hosts that still hold resources
+ */
+void
+nlmsvc_mark_resources(void)
+{
+	dprintk("lockd: nlmsvc_mark_resources\n");
+
+	nlm_traverse_files(NULL, NLM_ACT_MARK);
+}
+
+/*
+ * Release all resources held by the given client
+ */
+void
+nlmsvc_free_host_resources(struct nlm_host *host)
+{
+	dprintk("lockd: nlmsvc_free_host_resources\n");
+
+	if (nlm_traverse_files(host, NLM_ACT_UNLOCK))
+		printk(KERN_WARNING
+			"lockd: couldn't remove all locks held by %s",
+			host->h_name);
+}
+
+/*
+ * Delete a client when the nfsd entry is removed.
+ */
+void
+nlmsvc_invalidate_client(struct svc_client *clnt)
+{
+	struct nlm_host	*host;
+
+	if ((host = nlm_lookup_host(clnt, NULL, 0, 0)) != NULL) {
+		dprintk("lockd: invalidating client for %s\n", host->h_name);
+		nlmsvc_free_host_resources(host);
+		host->h_expires = 0;
+		host->h_killed = 1;
+		nlm_release_host(host);
+	}
+}
diff --git a/fs/lockd/xdr.c b/fs/lockd/xdr.c
new file mode 100644
index 00000000000000..691bdded7bbc81
--- /dev/null
+++ b/fs/lockd/xdr.c
@@ -0,0 +1,674 @@
+/*
+ * linux/fs/lockd/xdr.c
+ *
+ * XDR support for lockd and the lock client.
+ *
+ * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/utsname.h>
+#include <linux/nfs.h>
+
+#include <linux/sunrpc/xdr.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/svc.h>
+#include <linux/sunrpc/stats.h>
+#include <linux/lockd/lockd.h>
+#include <linux/lockd/sm_inter.h>
+
+#define NLMDBG_FACILITY		NLMDBG_XDR
+
+
+static inline loff_t
+s32_to_loff_t(__s32 offset)
+{
+	return (loff_t)offset;
+}
+
+static inline __s32
+loff_t_to_s32(loff_t offset)
+{
+	__s32 res;
+	if (offset >= NLM_OFFSET_MAX)
+		res = NLM_OFFSET_MAX;
+	else if (offset <= -NLM_OFFSET_MAX)
+		res = -NLM_OFFSET_MAX;
+	else
+		res = offset;
+	return res;
+}
+
+/*
+ * XDR functions for basic NLM types
+ */
+static inline u32 *nlm_decode_cookie(u32 *p, struct nlm_cookie *c)
+{
+	unsigned int	len;
+
+	len = ntohl(*p++);
+	
+	if(len==0)
+	{
+		c->len=4;
+		memset(c->data, 0, 4);	/* hockeypux brain damage */
+	}
+	else if(len<=NLM_MAXCOOKIELEN)
+	{
+		c->len=len;
+		memcpy(c->data, p, len);
+		p+=(len+3)>>2;
+	}
+	else 
+	{
+		printk(KERN_NOTICE
+			"lockd: bad cookie size %d (only cookies under %d bytes are supported.)\n", len, NLM_MAXCOOKIELEN);
+		return NULL;
+	}
+	return p;
+}
+
+static inline u32 *
+nlm_encode_cookie(u32 *p, struct nlm_cookie *c)
+{
+	*p++ = htonl(c->len);
+	memcpy(p, c->data, c->len);
+	p+=(c->len+3)>>2;
+	return p;
+}
+
+static inline u32 *
+nlm_decode_fh(u32 *p, struct nfs_fh *f)
+{
+	unsigned int	len;
+
+	if ((len = ntohl(*p++)) != NFS2_FHSIZE) {
+		printk(KERN_NOTICE
+			"lockd: bad fhandle size %d (should be %d)\n",
+			len, NFS2_FHSIZE);
+		return NULL;
+	}
+	f->size = NFS2_FHSIZE;
+	memset(f->data, 0, sizeof(f->data));
+	memcpy(f->data, p, NFS2_FHSIZE);
+	return p + XDR_QUADLEN(NFS2_FHSIZE);
+}
+
+static inline u32 *
+nlm_encode_fh(u32 *p, struct nfs_fh *f)
+{
+	*p++ = htonl(NFS2_FHSIZE);
+	memcpy(p, f->data, NFS2_FHSIZE);
+	return p + XDR_QUADLEN(NFS2_FHSIZE);
+}
+
+/*
+ * Encode and decode owner handle
+ */
+static inline u32 *
+nlm_decode_oh(u32 *p, struct xdr_netobj *oh)
+{
+	return xdr_decode_netobj(p, oh);
+}
+
+static inline u32 *
+nlm_encode_oh(u32 *p, struct xdr_netobj *oh)
+{
+	return xdr_encode_netobj(p, oh);
+}
+
+static inline u32 *
+nlm_decode_lock(u32 *p, struct nlm_lock *lock)
+{
+	struct file_lock	*fl = &lock->fl;
+	s32			start, len, end;
+
+	if (!(p = xdr_decode_string_inplace(p, &lock->caller,
+					    &lock->len,
+					    NLM_MAXSTRLEN))
+	 || !(p = nlm_decode_fh(p, &lock->fh))
+	 || !(p = nlm_decode_oh(p, &lock->oh)))
+		return NULL;
+
+	locks_init_lock(fl);
+	fl->fl_owner = current->files;
+	fl->fl_pid   = ntohl(*p++);
+	fl->fl_flags = FL_POSIX;
+	fl->fl_type  = F_RDLCK;		/* as good as anything else */
+	start = ntohl(*p++);
+	len = ntohl(*p++);
+	end = start + len - 1;
+
+	fl->fl_start = s32_to_loff_t(start);
+
+	if (len == 0 || end < 0)
+		fl->fl_end = OFFSET_MAX;
+	else
+		fl->fl_end = s32_to_loff_t(end);
+	return p;
+}
+
+/*
+ * Encode a lock as part of an NLM call
+ */
+static u32 *
+nlm_encode_lock(u32 *p, struct nlm_lock *lock)
+{
+	struct file_lock	*fl = &lock->fl;
+	__s32			start, len;
+
+	if (!(p = xdr_encode_string(p, lock->caller))
+	 || !(p = nlm_encode_fh(p, &lock->fh))
+	 || !(p = nlm_encode_oh(p, &lock->oh)))
+		return NULL;
+
+	if (fl->fl_start > NLM_OFFSET_MAX
+	 || (fl->fl_end > NLM_OFFSET_MAX && fl->fl_end != OFFSET_MAX))
+		return NULL;
+
+	start = loff_t_to_s32(fl->fl_start);
+	if (fl->fl_end == OFFSET_MAX)
+		len = 0;
+	else
+		len = loff_t_to_s32(fl->fl_end - fl->fl_start + 1);
+
+	*p++ = htonl(fl->fl_pid);
+	*p++ = htonl(start);
+	*p++ = htonl(len);
+
+	return p;
+}
+
+/*
+ * Encode result of a TEST/TEST_MSG call
+ */
+static u32 *
+nlm_encode_testres(u32 *p, struct nlm_res *resp)
+{
+	s32		start, len;
+
+	if (!(p = nlm_encode_cookie(p, &resp->cookie)))
+		return 0;
+	*p++ = resp->status;
+
+	if (resp->status == nlm_lck_denied) {
+		struct file_lock	*fl = &resp->lock.fl;
+
+		*p++ = (fl->fl_type == F_RDLCK)? xdr_zero : xdr_one;
+		*p++ = htonl(fl->fl_pid);
+
+		/* Encode owner handle. */
+		if (!(p = xdr_encode_netobj(p, &resp->lock.oh)))
+			return 0;
+
+		start = loff_t_to_s32(fl->fl_start);
+		if (fl->fl_end == OFFSET_MAX)
+			len = 0;
+		else
+			len = loff_t_to_s32(fl->fl_end - fl->fl_start + 1);
+
+		*p++ = htonl(start);
+		*p++ = htonl(len);
+	}
+
+	return p;
+}
+
+/*
+ * Check buffer bounds after decoding arguments
+ */
+static inline int
+xdr_argsize_check(struct svc_rqst *rqstp, u32 *p)
+{
+	struct svc_buf	*buf = &rqstp->rq_argbuf;
+
+	return p - buf->base <= buf->buflen;
+}
+
+static inline int
+xdr_ressize_check(struct svc_rqst *rqstp, u32 *p)
+{
+	struct svc_buf	*buf = &rqstp->rq_resbuf;
+
+	buf->len = p - buf->base;
+	return (buf->len <= buf->buflen);
+}
+
+/*
+ * First, the server side XDR functions
+ */
+int
+nlmsvc_decode_testargs(struct svc_rqst *rqstp, u32 *p, nlm_args *argp)
+{
+	u32	exclusive;
+
+	if (!(p = nlm_decode_cookie(p, &argp->cookie)))
+		return 0;
+
+	exclusive = ntohl(*p++);
+	if (!(p = nlm_decode_lock(p, &argp->lock)))
+		return 0;
+	if (exclusive)
+		argp->lock.fl.fl_type = F_WRLCK;
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nlmsvc_encode_testres(struct svc_rqst *rqstp, u32 *p, struct nlm_res *resp)
+{
+	if (!(p = nlm_encode_testres(p, resp)))
+		return 0;
+	return xdr_ressize_check(rqstp, p);
+}
+
+int
+nlmsvc_decode_lockargs(struct svc_rqst *rqstp, u32 *p, nlm_args *argp)
+{
+	u32	exclusive;
+
+	if (!(p = nlm_decode_cookie(p, &argp->cookie)))
+		return 0;
+	argp->block  = ntohl(*p++);
+	exclusive    = ntohl(*p++);
+	if (!(p = nlm_decode_lock(p, &argp->lock)))
+		return 0;
+	if (exclusive)
+		argp->lock.fl.fl_type = F_WRLCK;
+	argp->reclaim = ntohl(*p++);
+	argp->state   = ntohl(*p++);
+	argp->monitor = 1;		/* monitor client by default */
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nlmsvc_decode_cancargs(struct svc_rqst *rqstp, u32 *p, nlm_args *argp)
+{
+	u32	exclusive;
+
+	if (!(p = nlm_decode_cookie(p, &argp->cookie)))
+		return 0;
+	argp->block = ntohl(*p++);
+	exclusive = ntohl(*p++);
+	if (!(p = nlm_decode_lock(p, &argp->lock)))
+		return 0;
+	if (exclusive)
+		argp->lock.fl.fl_type = F_WRLCK;
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nlmsvc_decode_unlockargs(struct svc_rqst *rqstp, u32 *p, nlm_args *argp)
+{
+	if (!(p = nlm_decode_cookie(p, &argp->cookie))
+	 || !(p = nlm_decode_lock(p, &argp->lock)))
+		return 0;
+	argp->lock.fl.fl_type = F_UNLCK;
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nlmsvc_decode_shareargs(struct svc_rqst *rqstp, u32 *p, nlm_args *argp)
+{
+	struct nlm_lock	*lock = &argp->lock;
+
+	memset(lock, 0, sizeof(*lock));
+	locks_init_lock(&lock->fl);
+	lock->fl.fl_pid = ~(u32) 0;
+
+	if (!(p = nlm_decode_cookie(p, &argp->cookie))
+	 || !(p = xdr_decode_string_inplace(p, &lock->caller,
+					    &lock->len, NLM_MAXSTRLEN))
+	 || !(p = nlm_decode_fh(p, &lock->fh))
+	 || !(p = nlm_decode_oh(p, &lock->oh)))
+		return 0;
+	argp->fsm_mode = ntohl(*p++);
+	argp->fsm_access = ntohl(*p++);
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nlmsvc_encode_shareres(struct svc_rqst *rqstp, u32 *p, struct nlm_res *resp)
+{
+	if (!(p = nlm_encode_cookie(p, &resp->cookie)))
+		return 0;
+	*p++ = resp->status;
+	*p++ = xdr_zero;		/* sequence argument */
+	return xdr_ressize_check(rqstp, p);
+}
+
+int
+nlmsvc_encode_res(struct svc_rqst *rqstp, u32 *p, struct nlm_res *resp)
+{
+	if (!(p = nlm_encode_cookie(p, &resp->cookie)))
+		return 0;
+	*p++ = resp->status;
+	return xdr_ressize_check(rqstp, p);
+}
+
+int
+nlmsvc_decode_notify(struct svc_rqst *rqstp, u32 *p, struct nlm_args *argp)
+{
+	struct nlm_lock	*lock = &argp->lock;
+
+	if (!(p = xdr_decode_string_inplace(p, &lock->caller,
+					    &lock->len, NLM_MAXSTRLEN)))
+		return 0;
+	argp->state = ntohl(*p++);
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nlmsvc_decode_reboot(struct svc_rqst *rqstp, u32 *p, struct nlm_reboot *argp)
+{
+	if (!(p = xdr_decode_string_inplace(p, &argp->mon, &argp->len, SM_MAXSTRLEN)))
+		return 0;
+	argp->state = ntohl(*p++);
+	/* Preserve the address in network byte order */
+	argp->addr = *p++;
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nlmsvc_decode_res(struct svc_rqst *rqstp, u32 *p, struct nlm_res *resp)
+{
+	if (!(p = nlm_decode_cookie(p, &resp->cookie)))
+		return 0;
+	resp->status = ntohl(*p++);
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nlmsvc_decode_void(struct svc_rqst *rqstp, u32 *p, void *dummy)
+{
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nlmsvc_encode_void(struct svc_rqst *rqstp, u32 *p, void *dummy)
+{
+	return xdr_ressize_check(rqstp, p);
+}
+
+/*
+ * Now, the client side XDR functions
+ */
+static int
+nlmclt_encode_void(struct rpc_rqst *req, u32 *p, void *ptr)
+{
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+static int
+nlmclt_decode_void(struct rpc_rqst *req, u32 *p, void *ptr)
+{
+	return 0;
+}
+
+static int
+nlmclt_encode_testargs(struct rpc_rqst *req, u32 *p, nlm_args *argp)
+{
+	struct nlm_lock	*lock = &argp->lock;
+
+	if (!(p = nlm_encode_cookie(p, &argp->cookie)))
+		return -EIO;
+	*p++ = (lock->fl.fl_type == F_WRLCK)? xdr_one : xdr_zero;
+	if (!(p = nlm_encode_lock(p, lock)))
+		return -EIO;
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+static int
+nlmclt_decode_testres(struct rpc_rqst *req, u32 *p, struct nlm_res *resp)
+{
+	if (!(p = nlm_decode_cookie(p, &resp->cookie)))
+		return -EIO;
+	resp->status = ntohl(*p++);
+	if (resp->status == NLM_LCK_DENIED) {
+		struct file_lock	*fl = &resp->lock.fl;
+		u32			excl;
+		s32			start, len, end;
+
+		memset(&resp->lock, 0, sizeof(resp->lock));
+		locks_init_lock(fl);
+		excl = ntohl(*p++);
+		fl->fl_pid = ntohl(*p++);
+		if (!(p = nlm_decode_oh(p, &resp->lock.oh)))
+			return -EIO;
+
+		fl->fl_flags = FL_POSIX;
+		fl->fl_type  = excl? F_WRLCK : F_RDLCK;
+		start = ntohl(*p++);
+		len = ntohl(*p++);
+		end = start + len - 1;
+
+		fl->fl_start = s32_to_loff_t(start);
+		if (len == 0 || end < 0)
+			fl->fl_end = OFFSET_MAX;
+		else
+			fl->fl_end = s32_to_loff_t(end);
+	}
+	return 0;
+}
+
+
+static int
+nlmclt_encode_lockargs(struct rpc_rqst *req, u32 *p, nlm_args *argp)
+{
+	struct nlm_lock	*lock = &argp->lock;
+
+	if (!(p = nlm_encode_cookie(p, &argp->cookie)))
+		return -EIO;
+	*p++ = argp->block? xdr_one : xdr_zero;
+	*p++ = (lock->fl.fl_type == F_WRLCK)? xdr_one : xdr_zero;
+	if (!(p = nlm_encode_lock(p, lock)))
+		return -EIO;
+	*p++ = argp->reclaim? xdr_one : xdr_zero;
+	*p++ = htonl(argp->state);
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+static int
+nlmclt_encode_cancargs(struct rpc_rqst *req, u32 *p, nlm_args *argp)
+{
+	struct nlm_lock	*lock = &argp->lock;
+
+	if (!(p = nlm_encode_cookie(p, &argp->cookie)))
+		return -EIO;
+	*p++ = argp->block? xdr_one : xdr_zero;
+	*p++ = (lock->fl.fl_type == F_WRLCK)? xdr_one : xdr_zero;
+	if (!(p = nlm_encode_lock(p, lock)))
+		return -EIO;
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+static int
+nlmclt_encode_unlockargs(struct rpc_rqst *req, u32 *p, nlm_args *argp)
+{
+	struct nlm_lock	*lock = &argp->lock;
+
+	if (!(p = nlm_encode_cookie(p, &argp->cookie)))
+		return -EIO;
+	if (!(p = nlm_encode_lock(p, lock)))
+		return -EIO;
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+static int
+nlmclt_encode_res(struct rpc_rqst *req, u32 *p, struct nlm_res *resp)
+{
+	if (!(p = nlm_encode_cookie(p, &resp->cookie)))
+		return -EIO;
+	*p++ = resp->status;
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+static int
+nlmclt_encode_testres(struct rpc_rqst *req, u32 *p, struct nlm_res *resp)
+{
+	if (!(p = nlm_encode_testres(p, resp)))
+		return -EIO;
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+static int
+nlmclt_decode_res(struct rpc_rqst *req, u32 *p, struct nlm_res *resp)
+{
+	if (!(p = nlm_decode_cookie(p, &resp->cookie)))
+		return -EIO;
+	resp->status = ntohl(*p++);
+	return 0;
+}
+
+/*
+ * Buffer requirements for NLM
+ */
+#define NLM_void_sz		0
+#define NLM_cookie_sz		1+QUADLEN(NLM_MAXCOOKIELEN)
+#define NLM_caller_sz		1+QUADLEN(sizeof(system_utsname.nodename))
+#define NLM_netobj_sz		1+QUADLEN(XDR_MAX_NETOBJ)
+/* #define NLM_owner_sz		1+QUADLEN(NLM_MAXOWNER) */
+#define NLM_fhandle_sz		1+QUADLEN(NFS2_FHSIZE)
+#define NLM_lock_sz		3+NLM_caller_sz+NLM_netobj_sz+NLM_fhandle_sz
+#define NLM_holder_sz		4+NLM_netobj_sz
+
+#define NLM_testargs_sz		NLM_cookie_sz+1+NLM_lock_sz
+#define NLM_lockargs_sz		NLM_cookie_sz+4+NLM_lock_sz
+#define NLM_cancargs_sz		NLM_cookie_sz+2+NLM_lock_sz
+#define NLM_unlockargs_sz	NLM_cookie_sz+NLM_lock_sz
+
+#define NLM_testres_sz		NLM_cookie_sz+1+NLM_holder_sz
+#define NLM_res_sz		NLM_cookie_sz+1
+#define NLM_norep_sz		0
+
+#ifndef MAX
+# define MAX(a, b)		(((a) > (b))? (a) : (b))
+#endif
+
+/*
+ * For NLM, a void procedure really returns nothing
+ */
+#define nlmclt_decode_norep	NULL
+
+#define PROC(proc, argtype, restype)	\
+    { .p_procname  = "nlm_" #proc,					\
+      .p_encode    = (kxdrproc_t) nlmclt_encode_##argtype,		\
+      .p_decode    = (kxdrproc_t) nlmclt_decode_##restype,		\
+      .p_bufsiz    = MAX(NLM_##argtype##_sz, NLM_##restype##_sz) << 2	\
+    }
+
+static struct rpc_procinfo	nlm_procedures[] = {
+    PROC(null,		void,		void),
+    PROC(test,		testargs,	testres),
+    PROC(lock,		lockargs,	res),
+    PROC(canc,		cancargs,	res),
+    PROC(unlock,	unlockargs,	res),
+    PROC(granted,	testargs,	res),
+    PROC(test_msg,	testargs,	norep),
+    PROC(lock_msg,	lockargs,	norep),
+    PROC(canc_msg,	cancargs,	norep),
+    PROC(unlock_msg,	unlockargs,	norep),
+    PROC(granted_msg,	testargs,	norep),
+    PROC(test_res,	testres,	norep),
+    PROC(lock_res,	res,		norep),
+    PROC(canc_res,	res,		norep),
+    PROC(unlock_res,	res,		norep),
+    PROC(granted_res,	res,		norep),
+    PROC(undef,		void,		void),
+    PROC(undef,		void,		void),
+    PROC(undef,		void,		void),
+    PROC(undef,		void,		void),
+#ifdef NLMCLNT_SUPPORT_SHARES
+    PROC(share,		shareargs,	shareres),
+    PROC(unshare,	shareargs,	shareres),
+    PROC(nm_lock,	lockargs,	res),
+    PROC(free_all,	notify,		void),
+#else
+    PROC(undef,		void,		void),
+    PROC(undef,		void,		void),
+    PROC(undef,		void,		void),
+    PROC(undef,		void,		void),
+#endif
+};
+
+static struct rpc_version	nlm_version1 = {
+	1, 16, nlm_procedures,
+};
+
+static struct rpc_version	nlm_version3 = {
+	3, 24, nlm_procedures,
+};
+
+#ifdef 	CONFIG_LOCKD_V4
+extern struct rpc_version nlm_version4;
+#endif
+
+static struct rpc_version *	nlm_versions[] = {
+	NULL,
+	&nlm_version1,
+	NULL,
+	&nlm_version3,
+#ifdef 	CONFIG_LOCKD_V4
+	&nlm_version4,
+#endif
+};
+
+static struct rpc_stat		nlm_stats;
+
+struct rpc_program		nlm_program = {
+	"lockd",
+	NLM_PROGRAM,
+	sizeof(nlm_versions) / sizeof(nlm_versions[0]),
+	nlm_versions,
+	&nlm_stats,
+};
+
+#ifdef LOCKD_DEBUG
+char *
+nlm_procname(u32 proc)
+{
+	if (proc < sizeof(nlm_procedures)/sizeof(nlm_procedures[0]))
+		return nlm_procedures[proc].p_procname;
+	return "unknown";
+}
+#endif
+
+#ifdef RPC_DEBUG
+const char *nlmdbg_cookie2a(const struct nlm_cookie *cookie)
+{
+	/*
+	 * We can get away with a static buffer because we're only
+	 * called with BKL held.
+	 */
+	static char buf[2*NLM_MAXCOOKIELEN+1];
+	int i;
+	int len = sizeof(buf);
+	char *p = buf;
+
+	len--;	/* allow for trailing \0 */
+	if (len < 3)
+		return "???";
+	for (i = 0 ; i < cookie->len ; i++) {
+		if (len < 2) {
+			strcpy(p-3, "...");
+			break;
+		}
+		sprintf(p, "%02x", cookie->data[i]);
+		p += 2;
+		len -= 2;
+	}
+	*p = '\0';
+
+	return buf;
+}
+#endif
diff --git a/fs/lockd/xdr4.c b/fs/lockd/xdr4.c
new file mode 100644
index 00000000000000..5c336fdb341dad
--- /dev/null
+++ b/fs/lockd/xdr4.c
@@ -0,0 +1,612 @@
+/*
+ * linux/fs/lockd/xdr4.c
+ *
+ * XDR support for lockd and the lock client.
+ *
+ * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
+ * Copyright (C) 1999, Trond Myklebust <trond.myklebust@fys.uio.no>
+ */
+
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/utsname.h>
+#include <linux/nfs.h>
+
+#include <linux/sunrpc/xdr.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/svc.h>
+#include <linux/sunrpc/stats.h>
+#include <linux/lockd/lockd.h>
+#include <linux/lockd/sm_inter.h>
+
+#define NLMDBG_FACILITY		NLMDBG_XDR
+
+static inline loff_t
+s64_to_loff_t(__s64 offset)
+{
+	return (loff_t)offset;
+}
+
+
+static inline s64
+loff_t_to_s64(loff_t offset)
+{
+	s64 res;
+	if (offset > NLM4_OFFSET_MAX)
+		res = NLM4_OFFSET_MAX;
+	else if (offset < -NLM4_OFFSET_MAX)
+		res = -NLM4_OFFSET_MAX;
+	else
+		res = offset;
+	return res;
+}
+
+/*
+ * XDR functions for basic NLM types
+ */
+static u32 *
+nlm4_decode_cookie(u32 *p, struct nlm_cookie *c)
+{
+	unsigned int	len;
+
+	len = ntohl(*p++);
+	
+	if(len==0)
+	{
+		c->len=4;
+		memset(c->data, 0, 4);	/* hockeypux brain damage */
+	}
+	else if(len<=NLM_MAXCOOKIELEN)
+	{
+		c->len=len;
+		memcpy(c->data, p, len);
+		p+=(len+3)>>2;
+	}
+	else 
+	{
+		printk(KERN_NOTICE
+			"lockd: bad cookie size %d (only cookies under %d bytes are supported.)\n", len, NLM_MAXCOOKIELEN);
+		return NULL;
+	}
+	return p;
+}
+
+static u32 *
+nlm4_encode_cookie(u32 *p, struct nlm_cookie *c)
+{
+	*p++ = htonl(c->len);
+	memcpy(p, c->data, c->len);
+	p+=(c->len+3)>>2;
+	return p;
+}
+
+static u32 *
+nlm4_decode_fh(u32 *p, struct nfs_fh *f)
+{
+	memset(f->data, 0, sizeof(f->data));
+	f->size = ntohl(*p++);
+	if (f->size > NFS_MAXFHSIZE) {
+		printk(KERN_NOTICE
+			"lockd: bad fhandle size %d (should be <=%d)\n",
+			f->size, NFS_MAXFHSIZE);
+		return NULL;
+	}
+      	memcpy(f->data, p, f->size);
+	return p + XDR_QUADLEN(f->size);
+}
+
+static u32 *
+nlm4_encode_fh(u32 *p, struct nfs_fh *f)
+{
+	*p++ = htonl(f->size);
+	if (f->size) p[XDR_QUADLEN(f->size)-1] = 0; /* don't leak anything */
+	memcpy(p, f->data, f->size);
+	return p + XDR_QUADLEN(f->size);
+}
+
+/*
+ * Encode and decode owner handle
+ */
+static u32 *
+nlm4_decode_oh(u32 *p, struct xdr_netobj *oh)
+{
+	return xdr_decode_netobj(p, oh);
+}
+
+static u32 *
+nlm4_encode_oh(u32 *p, struct xdr_netobj *oh)
+{
+	return xdr_encode_netobj(p, oh);
+}
+
+static u32 *
+nlm4_decode_lock(u32 *p, struct nlm_lock *lock)
+{
+	struct file_lock	*fl = &lock->fl;
+	__s64			len, start, end;
+
+	if (!(p = xdr_decode_string_inplace(p, &lock->caller,
+					    &lock->len, NLM_MAXSTRLEN))
+	 || !(p = nlm4_decode_fh(p, &lock->fh))
+	 || !(p = nlm4_decode_oh(p, &lock->oh)))
+		return NULL;
+
+	locks_init_lock(fl);
+	fl->fl_owner = current->files;
+	fl->fl_pid   = ntohl(*p++);
+	fl->fl_flags = FL_POSIX;
+	fl->fl_type  = F_RDLCK;		/* as good as anything else */
+	p = xdr_decode_hyper(p, &start);
+	p = xdr_decode_hyper(p, &len);
+	end = start + len - 1;
+
+	fl->fl_start = s64_to_loff_t(start);
+
+	if (len == 0 || end < 0)
+		fl->fl_end = OFFSET_MAX;
+	else
+		fl->fl_end = s64_to_loff_t(end);
+	return p;
+}
+
+/*
+ * Encode a lock as part of an NLM call
+ */
+static u32 *
+nlm4_encode_lock(u32 *p, struct nlm_lock *lock)
+{
+	struct file_lock	*fl = &lock->fl;
+	__s64			start, len;
+
+	if (!(p = xdr_encode_string(p, lock->caller))
+	 || !(p = nlm4_encode_fh(p, &lock->fh))
+	 || !(p = nlm4_encode_oh(p, &lock->oh)))
+		return NULL;
+
+	if (fl->fl_start > NLM4_OFFSET_MAX
+	 || (fl->fl_end > NLM4_OFFSET_MAX && fl->fl_end != OFFSET_MAX))
+		return NULL;
+
+	*p++ = htonl(fl->fl_pid);
+
+	start = loff_t_to_s64(fl->fl_start);
+	if (fl->fl_end == OFFSET_MAX)
+		len = 0;
+	else
+		len = loff_t_to_s64(fl->fl_end - fl->fl_start + 1);
+
+	p = xdr_encode_hyper(p, start);
+	p = xdr_encode_hyper(p, len);
+
+	return p;
+}
+
+/*
+ * Encode result of a TEST/TEST_MSG call
+ */
+static u32 *
+nlm4_encode_testres(u32 *p, struct nlm_res *resp)
+{
+	s64		start, len;
+
+	dprintk("xdr: before encode_testres (p %p resp %p)\n", p, resp);
+	if (!(p = nlm4_encode_cookie(p, &resp->cookie)))
+		return 0;
+	*p++ = resp->status;
+
+	if (resp->status == nlm_lck_denied) {
+		struct file_lock	*fl = &resp->lock.fl;
+
+		*p++ = (fl->fl_type == F_RDLCK)? xdr_zero : xdr_one;
+		*p++ = htonl(fl->fl_pid);
+
+		/* Encode owner handle. */
+		if (!(p = xdr_encode_netobj(p, &resp->lock.oh)))
+			return 0;
+
+		start = loff_t_to_s64(fl->fl_start);
+		if (fl->fl_end == OFFSET_MAX)
+			len = 0;
+		else
+			len = loff_t_to_s64(fl->fl_end - fl->fl_start + 1);
+		
+		p = xdr_encode_hyper(p, start);
+		p = xdr_encode_hyper(p, len);
+		dprintk("xdr: encode_testres (status %d pid %d type %d start %Ld end %Ld)\n",
+			resp->status, fl->fl_pid, fl->fl_type,
+			(long long)fl->fl_start,  (long long)fl->fl_end);
+	}
+
+	dprintk("xdr: after encode_testres (p %p resp %p)\n", p, resp);
+	return p;
+}
+
+
+/*
+ * Check buffer bounds after decoding arguments
+ */
+static int
+xdr_argsize_check(struct svc_rqst *rqstp, u32 *p)
+{
+	struct svc_buf	*buf = &rqstp->rq_argbuf;
+
+	return p - buf->base <= buf->buflen;
+}
+
+static int
+xdr_ressize_check(struct svc_rqst *rqstp, u32 *p)
+{
+	struct svc_buf	*buf = &rqstp->rq_resbuf;
+
+	buf->len = p - buf->base;
+	return (buf->len <= buf->buflen);
+}
+
+/*
+ * First, the server side XDR functions
+ */
+int
+nlm4svc_decode_testargs(struct svc_rqst *rqstp, u32 *p, nlm_args *argp)
+{
+	u32	exclusive;
+
+	if (!(p = nlm4_decode_cookie(p, &argp->cookie)))
+		return 0;
+
+	exclusive = ntohl(*p++);
+	if (!(p = nlm4_decode_lock(p, &argp->lock)))
+		return 0;
+	if (exclusive)
+		argp->lock.fl.fl_type = F_WRLCK;
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nlm4svc_encode_testres(struct svc_rqst *rqstp, u32 *p, struct nlm_res *resp)
+{
+	if (!(p = nlm4_encode_testres(p, resp)))
+		return 0;
+	return xdr_ressize_check(rqstp, p);
+}
+
+int
+nlm4svc_decode_lockargs(struct svc_rqst *rqstp, u32 *p, nlm_args *argp)
+{
+	u32	exclusive;
+
+	if (!(p = nlm4_decode_cookie(p, &argp->cookie)))
+		return 0;
+	argp->block  = ntohl(*p++);
+	exclusive    = ntohl(*p++);
+	if (!(p = nlm4_decode_lock(p, &argp->lock)))
+		return 0;
+	if (exclusive)
+		argp->lock.fl.fl_type = F_WRLCK;
+	argp->reclaim = ntohl(*p++);
+	argp->state   = ntohl(*p++);
+	argp->monitor = 1;		/* monitor client by default */
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nlm4svc_decode_cancargs(struct svc_rqst *rqstp, u32 *p, nlm_args *argp)
+{
+	u32	exclusive;
+
+	if (!(p = nlm4_decode_cookie(p, &argp->cookie)))
+		return 0;
+	argp->block = ntohl(*p++);
+	exclusive = ntohl(*p++);
+	if (!(p = nlm4_decode_lock(p, &argp->lock)))
+		return 0;
+	if (exclusive)
+		argp->lock.fl.fl_type = F_WRLCK;
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nlm4svc_decode_unlockargs(struct svc_rqst *rqstp, u32 *p, nlm_args *argp)
+{
+	if (!(p = nlm4_decode_cookie(p, &argp->cookie))
+	 || !(p = nlm4_decode_lock(p, &argp->lock)))
+		return 0;
+	argp->lock.fl.fl_type = F_UNLCK;
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nlm4svc_decode_shareargs(struct svc_rqst *rqstp, u32 *p, nlm_args *argp)
+{
+	struct nlm_lock	*lock = &argp->lock;
+
+	memset(lock, 0, sizeof(*lock));
+	locks_init_lock(&lock->fl);
+	lock->fl.fl_pid = ~(u32) 0;
+
+	if (!(p = nlm4_decode_cookie(p, &argp->cookie))
+	 || !(p = xdr_decode_string_inplace(p, &lock->caller,
+					    &lock->len, NLM_MAXSTRLEN))
+	 || !(p = nlm4_decode_fh(p, &lock->fh))
+	 || !(p = nlm4_decode_oh(p, &lock->oh)))
+		return 0;
+	argp->fsm_mode = ntohl(*p++);
+	argp->fsm_access = ntohl(*p++);
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nlm4svc_encode_shareres(struct svc_rqst *rqstp, u32 *p, struct nlm_res *resp)
+{
+	if (!(p = nlm4_encode_cookie(p, &resp->cookie)))
+		return 0;
+	*p++ = resp->status;
+	*p++ = xdr_zero;		/* sequence argument */
+	return xdr_ressize_check(rqstp, p);
+}
+
+int
+nlm4svc_encode_res(struct svc_rqst *rqstp, u32 *p, struct nlm_res *resp)
+{
+	if (!(p = nlm4_encode_cookie(p, &resp->cookie)))
+		return 0;
+	*p++ = resp->status;
+	return xdr_ressize_check(rqstp, p);
+}
+
+int
+nlm4svc_decode_notify(struct svc_rqst *rqstp, u32 *p, struct nlm_args *argp)
+{
+	struct nlm_lock	*lock = &argp->lock;
+
+	if (!(p = xdr_decode_string_inplace(p, &lock->caller,
+					    &lock->len, NLM_MAXSTRLEN)))
+		return 0;
+	argp->state = ntohl(*p++);
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nlm4svc_decode_reboot(struct svc_rqst *rqstp, u32 *p, struct nlm_reboot *argp)
+{
+	if (!(p = xdr_decode_string_inplace(p, &argp->mon, &argp->len, SM_MAXSTRLEN)))
+		return 0;
+	argp->state = ntohl(*p++);
+	/* Preserve the address in network byte order */
+	argp->addr = *p++;
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nlm4svc_decode_res(struct svc_rqst *rqstp, u32 *p, struct nlm_res *resp)
+{
+	if (!(p = nlm4_decode_cookie(p, &resp->cookie)))
+		return 0;
+	resp->status = ntohl(*p++);
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nlm4svc_decode_void(struct svc_rqst *rqstp, u32 *p, void *dummy)
+{
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nlm4svc_encode_void(struct svc_rqst *rqstp, u32 *p, void *dummy)
+{
+	return xdr_ressize_check(rqstp, p);
+}
+
+/*
+ * Now, the client side XDR functions
+ */
+static int
+nlm4clt_encode_void(struct rpc_rqst *req, u32 *p, void *ptr)
+{
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+static int
+nlm4clt_decode_void(struct rpc_rqst *req, u32 *p, void *ptr)
+{
+	return 0;
+}
+
+static int
+nlm4clt_encode_testargs(struct rpc_rqst *req, u32 *p, nlm_args *argp)
+{
+	struct nlm_lock	*lock = &argp->lock;
+
+	if (!(p = nlm4_encode_cookie(p, &argp->cookie)))
+		return -EIO;
+	*p++ = (lock->fl.fl_type == F_WRLCK)? xdr_one : xdr_zero;
+	if (!(p = nlm4_encode_lock(p, lock)))
+		return -EIO;
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+static int
+nlm4clt_decode_testres(struct rpc_rqst *req, u32 *p, struct nlm_res *resp)
+{
+	if (!(p = nlm4_decode_cookie(p, &resp->cookie)))
+		return -EIO;
+	resp->status = ntohl(*p++);
+	if (resp->status == NLM_LCK_DENIED) {
+		struct file_lock	*fl = &resp->lock.fl;
+		u32			excl;
+		s64			start, end, len;
+
+		memset(&resp->lock, 0, sizeof(resp->lock));
+		locks_init_lock(fl);
+		excl = ntohl(*p++);
+		fl->fl_pid = ntohl(*p++);
+		if (!(p = nlm4_decode_oh(p, &resp->lock.oh)))
+			return -EIO;
+
+		fl->fl_flags = FL_POSIX;
+		fl->fl_type  = excl? F_WRLCK : F_RDLCK;
+		p = xdr_decode_hyper(p, &start);
+		p = xdr_decode_hyper(p, &len);
+		end = start + len - 1;
+
+		fl->fl_start = s64_to_loff_t(start);
+		if (len == 0 || end < 0)
+			fl->fl_end = OFFSET_MAX;
+		else
+			fl->fl_end = s64_to_loff_t(end);
+	}
+	return 0;
+}
+
+
+static int
+nlm4clt_encode_lockargs(struct rpc_rqst *req, u32 *p, nlm_args *argp)
+{
+	struct nlm_lock	*lock = &argp->lock;
+
+	if (!(p = nlm4_encode_cookie(p, &argp->cookie)))
+		return -EIO;
+	*p++ = argp->block? xdr_one : xdr_zero;
+	*p++ = (lock->fl.fl_type == F_WRLCK)? xdr_one : xdr_zero;
+	if (!(p = nlm4_encode_lock(p, lock)))
+		return -EIO;
+	*p++ = argp->reclaim? xdr_one : xdr_zero;
+	*p++ = htonl(argp->state);
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+static int
+nlm4clt_encode_cancargs(struct rpc_rqst *req, u32 *p, nlm_args *argp)
+{
+	struct nlm_lock	*lock = &argp->lock;
+
+	if (!(p = nlm4_encode_cookie(p, &argp->cookie)))
+		return -EIO;
+	*p++ = argp->block? xdr_one : xdr_zero;
+	*p++ = (lock->fl.fl_type == F_WRLCK)? xdr_one : xdr_zero;
+	if (!(p = nlm4_encode_lock(p, lock)))
+		return -EIO;
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+static int
+nlm4clt_encode_unlockargs(struct rpc_rqst *req, u32 *p, nlm_args *argp)
+{
+	struct nlm_lock	*lock = &argp->lock;
+
+	if (!(p = nlm4_encode_cookie(p, &argp->cookie)))
+		return -EIO;
+	if (!(p = nlm4_encode_lock(p, lock)))
+		return -EIO;
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+static int
+nlm4clt_encode_res(struct rpc_rqst *req, u32 *p, struct nlm_res *resp)
+{
+	if (!(p = nlm4_encode_cookie(p, &resp->cookie)))
+		return -EIO;
+	*p++ = resp->status;
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+static int
+nlm4clt_encode_testres(struct rpc_rqst *req, u32 *p, struct nlm_res *resp)
+{
+	if (!(p = nlm4_encode_testres(p, resp)))
+		return -EIO;
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+static int
+nlm4clt_decode_res(struct rpc_rqst *req, u32 *p, struct nlm_res *resp)
+{
+	if (!(p = nlm4_decode_cookie(p, &resp->cookie)))
+		return -EIO;
+	resp->status = ntohl(*p++);
+	return 0;
+}
+
+/*
+ * Buffer requirements for NLM
+ */
+#define NLM4_void_sz		0
+#define NLM4_cookie_sz		1+XDR_QUADLEN(NLM_MAXCOOKIELEN)
+#define NLM4_caller_sz		1+XDR_QUADLEN(NLM_MAXSTRLEN)
+#define NLM4_netobj_sz		1+XDR_QUADLEN(XDR_MAX_NETOBJ)
+/* #define NLM4_owner_sz		1+XDR_QUADLEN(NLM4_MAXOWNER) */
+#define NLM4_fhandle_sz		1+XDR_QUADLEN(NFS3_FHSIZE)
+#define NLM4_lock_sz		5+NLM4_caller_sz+NLM4_netobj_sz+NLM4_fhandle_sz
+#define NLM4_holder_sz		6+NLM4_netobj_sz
+
+#define NLM4_testargs_sz	NLM4_cookie_sz+1+NLM4_lock_sz
+#define NLM4_lockargs_sz	NLM4_cookie_sz+4+NLM4_lock_sz
+#define NLM4_cancargs_sz	NLM4_cookie_sz+2+NLM4_lock_sz
+#define NLM4_unlockargs_sz	NLM4_cookie_sz+NLM4_lock_sz
+
+#define NLM4_testres_sz		NLM4_cookie_sz+1+NLM4_holder_sz
+#define NLM4_res_sz		NLM4_cookie_sz+1
+#define NLM4_norep_sz		0
+
+#ifndef MAX
+# define MAX(a,b)		(((a) > (b))? (a) : (b))
+#endif
+
+/*
+ * For NLM, a void procedure really returns nothing
+ */
+#define nlm4clt_decode_norep	NULL
+
+#define PROC(proc, argtype, restype)					\
+    { .p_procname  = "nlm4_" #proc,					\
+      .p_encode    = (kxdrproc_t) nlm4clt_encode_##argtype,		\
+      .p_decode    = (kxdrproc_t) nlm4clt_decode_##restype,		\
+      .p_bufsiz    = MAX(NLM4_##argtype##_sz, NLM4_##restype##_sz) << 2	\
+    }
+
+static struct rpc_procinfo	nlm4_procedures[] = {
+    PROC(null,		void,		void),
+    PROC(test,		testargs,	testres),
+    PROC(lock,		lockargs,	res),
+    PROC(canc,		cancargs,	res),
+    PROC(unlock,	unlockargs,	res),
+    PROC(granted,	testargs,	res),
+    PROC(test_msg,	testargs,	norep),
+    PROC(lock_msg,	lockargs,	norep),
+    PROC(canc_msg,	cancargs,	norep),
+    PROC(unlock_msg,	unlockargs,	norep),
+    PROC(granted_msg,	testargs,	norep),
+    PROC(test_res,	testres,	norep),
+    PROC(lock_res,	res,		norep),
+    PROC(canc_res,	res,		norep),
+    PROC(unlock_res,	res,		norep),
+    PROC(granted_res,	res,		norep),
+    PROC(undef,		void,		void),
+    PROC(undef,		void,		void),
+    PROC(undef,		void,		void),
+    PROC(undef,		void,		void),
+#ifdef NLMCLNT_SUPPORT_SHARES
+    PROC(share,		shareargs,	shareres),
+    PROC(unshare,	shareargs,	shareres),
+    PROC(nm_lock,	lockargs,	res),
+    PROC(free_all,	notify,		void),
+#else
+    PROC(undef,		void,		void),
+    PROC(undef,		void,		void),
+    PROC(undef,		void,		void),
+    PROC(undef,		void,		void),
+#endif
+};
+
+struct rpc_version	nlm_version4 = {
+	4, 24, nlm4_procedures,
+};
diff --git a/fs/locks.c b/fs/locks.c
new file mode 100644
index 00000000000000..370ed4cc4ebb1b
--- /dev/null
+++ b/fs/locks.c
@@ -0,0 +1,2042 @@
+#define MSNFS	/* HACK HACK */
+/*
+ *  linux/fs/locks.c
+ *
+ *  Provide support for fcntl()'s F_GETLK, F_SETLK, and F_SETLKW calls.
+ *  Doug Evans (dje@spiff.uucp), August 07, 1992
+ *
+ *  Deadlock detection added.
+ *  FIXME: one thing isn't handled yet:
+ *	- mandatory locks (requires lots of changes elsewhere)
+ *  Kelly Carmichael (kelly@[142.24.8.65]), September 17, 1994.
+ *
+ *  Miscellaneous edits, and a total rewrite of posix_lock_file() code.
+ *  Kai Petzke (wpp@marie.physik.tu-berlin.de), 1994
+ *  
+ *  Converted file_lock_table to a linked list from an array, which eliminates
+ *  the limits on how many active file locks are open.
+ *  Chad Page (pageone@netcom.com), November 27, 1994
+ * 
+ *  Removed dependency on file descriptors. dup()'ed file descriptors now
+ *  get the same locks as the original file descriptors, and a close() on
+ *  any file descriptor removes ALL the locks on the file for the current
+ *  process. Since locks still depend on the process id, locks are inherited
+ *  after an exec() but not after a fork(). This agrees with POSIX, and both
+ *  BSD and SVR4 practice.
+ *  Andy Walker (andy@lysaker.kvaerner.no), February 14, 1995
+ *
+ *  Scrapped free list which is redundant now that we allocate locks
+ *  dynamically with kmalloc()/kfree().
+ *  Andy Walker (andy@lysaker.kvaerner.no), February 21, 1995
+ *
+ *  Implemented two lock personalities - FL_FLOCK and FL_POSIX.
+ *
+ *  FL_POSIX locks are created with calls to fcntl() and lockf() through the
+ *  fcntl() system call. They have the semantics described above.
+ *
+ *  FL_FLOCK locks are created with calls to flock(), through the flock()
+ *  system call, which is new. Old C libraries implement flock() via fcntl()
+ *  and will continue to use the old, broken implementation.
+ *
+ *  FL_FLOCK locks follow the 4.4 BSD flock() semantics. They are associated
+ *  with a file pointer (filp). As a result they can be shared by a parent
+ *  process and its children after a fork(). They are removed when the last
+ *  file descriptor referring to the file pointer is closed (unless explicitly
+ *  unlocked). 
+ *
+ *  FL_FLOCK locks never deadlock, an existing lock is always removed before
+ *  upgrading from shared to exclusive (or vice versa). When this happens
+ *  any processes blocked by the current lock are woken up and allowed to
+ *  run before the new lock is applied.
+ *  Andy Walker (andy@lysaker.kvaerner.no), June 09, 1995
+ *
+ *  Removed some race conditions in flock_lock_file(), marked other possible
+ *  races. Just grep for FIXME to see them. 
+ *  Dmitry Gorodchanin (pgmdsg@ibi.com), February 09, 1996.
+ *
+ *  Addressed Dmitry's concerns. Deadlock checking no longer recursive.
+ *  Lock allocation changed to GFP_ATOMIC as we can't afford to sleep
+ *  once we've checked for blocking and deadlocking.
+ *  Andy Walker (andy@lysaker.kvaerner.no), April 03, 1996.
+ *
+ *  Initial implementation of mandatory locks. SunOS turned out to be
+ *  a rotten model, so I implemented the "obvious" semantics.
+ *  See 'linux/Documentation/mandatory.txt' for details.
+ *  Andy Walker (andy@lysaker.kvaerner.no), April 06, 1996.
+ *
+ *  Don't allow mandatory locks on mmap()'ed files. Added simple functions to
+ *  check if a file has mandatory locks, used by mmap(), open() and creat() to
+ *  see if system call should be rejected. Ref. HP-UX/SunOS/Solaris Reference
+ *  Manual, Section 2.
+ *  Andy Walker (andy@lysaker.kvaerner.no), April 09, 1996.
+ *
+ *  Tidied up block list handling. Added '/proc/locks' interface.
+ *  Andy Walker (andy@lysaker.kvaerner.no), April 24, 1996.
+ *
+ *  Fixed deadlock condition for pathological code that mixes calls to
+ *  flock() and fcntl().
+ *  Andy Walker (andy@lysaker.kvaerner.no), April 29, 1996.
+ *
+ *  Allow only one type of locking scheme (FL_POSIX or FL_FLOCK) to be in use
+ *  for a given file at a time. Changed the CONFIG_LOCK_MANDATORY scheme to
+ *  guarantee sensible behaviour in the case where file system modules might
+ *  be compiled with different options than the kernel itself.
+ *  Andy Walker (andy@lysaker.kvaerner.no), May 15, 1996.
+ *
+ *  Added a couple of missing wake_up() calls. Thanks to Thomas Meckel
+ *  (Thomas.Meckel@mni.fh-giessen.de) for spotting this.
+ *  Andy Walker (andy@lysaker.kvaerner.no), May 15, 1996.
+ *
+ *  Changed FL_POSIX locks to use the block list in the same way as FL_FLOCK
+ *  locks. Changed process synchronisation to avoid dereferencing locks that
+ *  have already been freed.
+ *  Andy Walker (andy@lysaker.kvaerner.no), Sep 21, 1996.
+ *
+ *  Made the block list a circular list to minimise searching in the list.
+ *  Andy Walker (andy@lysaker.kvaerner.no), Sep 25, 1996.
+ *
+ *  Made mandatory locking a mount option. Default is not to allow mandatory
+ *  locking.
+ *  Andy Walker (andy@lysaker.kvaerner.no), Oct 04, 1996.
+ *
+ *  Some adaptations for NFS support.
+ *  Olaf Kirch (okir@monad.swb.de), Dec 1996,
+ *
+ *  Fixed /proc/locks interface so that we can't overrun the buffer we are handed.
+ *  Andy Walker (andy@lysaker.kvaerner.no), May 12, 1997.
+ *
+ *  Use slab allocator instead of kmalloc/kfree.
+ *  Use generic list implementation from <linux/list.h>.
+ *  Sped up posix_locks_deadlock by only considering blocked locks.
+ *  Matthew Wilcox <willy@thepuffingroup.com>, March, 2000.
+ *
+ *  Leases and LOCK_MAND
+ *  Matthew Wilcox <willy@linuxcare.com>, June, 2000.
+ *  Stephen Rothwell <sfr@canb.auug.org.au>, June, 2000.
+ */
+
+#include <linux/slab.h>
+#include <linux/file.h>
+#include <linux/smp_lock.h>
+#include <linux/init.h>
+#include <linux/capability.h>
+#include <linux/sched.h>
+#include <linux/timer.h>
+
+#include <asm/semaphore.h>
+#include <asm/uaccess.h>
+
+int leases_enable = 1;
+int lease_break_time = 45;
+
+LIST_HEAD(file_lock_list);
+static LIST_HEAD(blocked_list);
+
+static kmem_cache_t *filelock_cache;
+
+/* Allocate an empty lock structure. */
+static struct file_lock *locks_alloc_lock(void)
+{
+	return kmem_cache_alloc(filelock_cache, SLAB_KERNEL);
+}
+
+/* Free a lock which is not in use. */
+static inline void locks_free_lock(struct file_lock *fl)
+{
+	if (fl == NULL) {
+		BUG();
+		return;
+	}
+	if (waitqueue_active(&fl->fl_wait))
+		panic("Attempting to free lock with active wait queue");
+
+	if (!list_empty(&fl->fl_block))
+		panic("Attempting to free lock with active block list");
+
+	if (!list_empty(&fl->fl_link))
+		panic("Attempting to free lock on active lock list");
+
+	kmem_cache_free(filelock_cache, fl);
+}
+
+void locks_init_lock(struct file_lock *fl)
+{
+	INIT_LIST_HEAD(&fl->fl_link);
+	INIT_LIST_HEAD(&fl->fl_block);
+	init_waitqueue_head(&fl->fl_wait);
+	fl->fl_next = NULL;
+	fl->fl_fasync = NULL;
+	fl->fl_owner = 0;
+	fl->fl_pid = 0;
+	fl->fl_file = NULL;
+	fl->fl_flags = 0;
+	fl->fl_type = 0;
+	fl->fl_start = fl->fl_end = 0;
+	fl->fl_notify = NULL;
+	fl->fl_insert = NULL;
+	fl->fl_remove = NULL;
+}
+
+/*
+ * Initialises the fields of the file lock which are invariant for
+ * free file_locks.
+ */
+static void init_once(void *foo, kmem_cache_t *cache, unsigned long flags)
+{
+	struct file_lock *lock = (struct file_lock *) foo;
+
+	if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) !=
+					SLAB_CTOR_CONSTRUCTOR)
+		return;
+
+	locks_init_lock(lock);
+}
+
+/*
+ * Initialize a new lock from an existing file_lock structure.
+ */
+void locks_copy_lock(struct file_lock *new, struct file_lock *fl)
+{
+	new->fl_owner = fl->fl_owner;
+	new->fl_pid = fl->fl_pid;
+	new->fl_file = fl->fl_file;
+	new->fl_flags = fl->fl_flags;
+	new->fl_type = fl->fl_type;
+	new->fl_start = fl->fl_start;
+	new->fl_end = fl->fl_end;
+	new->fl_notify = fl->fl_notify;
+	new->fl_insert = fl->fl_insert;
+	new->fl_remove = fl->fl_remove;
+	new->fl_u = fl->fl_u;
+}
+
+/* Fill in a file_lock structure with an appropriate FLOCK lock. */
+static struct file_lock *flock_make_lock(struct file *filp, unsigned int type)
+{
+	struct file_lock *fl = locks_alloc_lock();
+	if (fl == NULL)
+		return NULL;
+
+	fl->fl_owner = NULL;
+	fl->fl_file = filp;
+	fl->fl_pid = current->pid;
+	fl->fl_flags = FL_FLOCK;
+	fl->fl_type = type;
+	fl->fl_start = 0;
+	fl->fl_end = OFFSET_MAX;
+	fl->fl_notify = NULL;
+	fl->fl_insert = NULL;
+	fl->fl_remove = NULL;
+	
+	return fl;
+}
+
+static int assign_type(struct file_lock *fl, int type)
+{
+	switch (type) {
+	case F_RDLCK:
+	case F_WRLCK:
+	case F_UNLCK:
+		fl->fl_type = type;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+/* Verify a "struct flock" and copy it to a "struct file_lock" as a POSIX
+ * style lock.
+ */
+static int flock_to_posix_lock(struct file *filp, struct file_lock *fl,
+			       struct flock *l)
+{
+	off_t start, end;
+
+	switch (l->l_whence) {
+	case 0: /*SEEK_SET*/
+		start = 0;
+		break;
+	case 1: /*SEEK_CUR*/
+		start = filp->f_pos;
+		break;
+	case 2: /*SEEK_END*/
+		start = filp->f_dentry->d_inode->i_size;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* POSIX-1996 leaves the case l->l_len < 0 undefined;
+	   POSIX-2001 defines it. */
+	start += l->l_start;
+	if (l->l_len < 0) {
+		end = start - 1;
+		start += l->l_len;
+	} else {
+		end = start + l->l_len - 1;
+	}
+
+	if (start < 0)
+		return -EINVAL;
+	if (l->l_len > 0 && end < 0)
+		return -EOVERFLOW;
+	fl->fl_start = start;	/* we record the absolute position */
+	fl->fl_end = end;
+	if (l->l_len == 0)
+		fl->fl_end = OFFSET_MAX;
+	
+	fl->fl_owner = current->files;
+	fl->fl_pid = current->pid;
+	fl->fl_file = filp;
+	fl->fl_flags = FL_POSIX;
+	fl->fl_notify = NULL;
+	fl->fl_insert = NULL;
+	fl->fl_remove = NULL;
+
+	return assign_type(fl, l->l_type);
+}
+
+#if BITS_PER_LONG == 32
+static int flock64_to_posix_lock(struct file *filp, struct file_lock *fl,
+				 struct flock64 *l)
+{
+	loff_t start;
+
+	switch (l->l_whence) {
+	case 0: /*SEEK_SET*/
+		start = 0;
+		break;
+	case 1: /*SEEK_CUR*/
+		start = filp->f_pos;
+		break;
+	case 2: /*SEEK_END*/
+		start = filp->f_dentry->d_inode->i_size;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (((start += l->l_start) < 0) || (l->l_len < 0))
+		return -EINVAL;
+	fl->fl_end = start + l->l_len - 1;
+	if (l->l_len > 0 && fl->fl_end < 0)
+		return -EOVERFLOW;
+	fl->fl_start = start;	/* we record the absolute position */
+	if (l->l_len == 0)
+		fl->fl_end = OFFSET_MAX;
+	
+	fl->fl_owner = current->files;
+	fl->fl_pid = current->pid;
+	fl->fl_file = filp;
+	fl->fl_flags = FL_POSIX;
+	fl->fl_notify = NULL;
+	fl->fl_insert = NULL;
+	fl->fl_remove = NULL;
+
+	switch (l->l_type) {
+	case F_RDLCK:
+	case F_WRLCK:
+	case F_UNLCK:
+		fl->fl_type = l->l_type;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return (0);
+}
+#endif
+
+/* Allocate a file_lock initialised to this type of lease */
+static int lease_alloc(struct file *filp, int type, struct file_lock **flp)
+{
+	struct file_lock *fl = locks_alloc_lock();
+	if (fl == NULL)
+		return -ENOMEM;
+
+	fl->fl_owner = current->files;
+	fl->fl_pid = current->pid;
+
+	fl->fl_file = filp;
+	fl->fl_flags = FL_LEASE;
+	if (assign_type(fl, type) != 0) {
+		locks_free_lock(fl);
+		return -EINVAL;
+	}
+	fl->fl_start = 0;
+	fl->fl_end = OFFSET_MAX;
+	fl->fl_notify = NULL;
+	fl->fl_insert = NULL;
+	fl->fl_remove = NULL;
+
+	*flp = fl;
+	return 0;
+}
+
+/* Check if two locks overlap each other.
+ */
+static inline int locks_overlap(struct file_lock *fl1, struct file_lock *fl2)
+{
+	return ((fl1->fl_end >= fl2->fl_start) &&
+		(fl2->fl_end >= fl1->fl_start));
+}
+
+/*
+ * Check whether two locks have the same owner
+ * N.B. Do we need the test on PID as well as owner?
+ * (Clone tasks should be considered as one "owner".)
+ */
+static inline int
+locks_same_owner(struct file_lock *fl1, struct file_lock *fl2)
+{
+	return (fl1->fl_owner == fl2->fl_owner) &&
+	       (fl1->fl_pid   == fl2->fl_pid);
+}
+
+/* Remove waiter from blocker's block list.
+ * When blocker ends up pointing to itself then the list is empty.
+ */
+static void locks_delete_block(struct file_lock *waiter)
+{
+	list_del(&waiter->fl_block);
+	INIT_LIST_HEAD(&waiter->fl_block);
+	list_del(&waiter->fl_link);
+	INIT_LIST_HEAD(&waiter->fl_link);
+	waiter->fl_next = NULL;
+}
+
+/* Insert waiter into blocker's block list.
+ * We use a circular list so that processes can be easily woken up in
+ * the order they blocked. The documentation doesn't require this but
+ * it seems like the reasonable thing to do.
+ */
+static void locks_insert_block(struct file_lock *blocker, 
+			       struct file_lock *waiter)
+{
+	if (!list_empty(&waiter->fl_block)) {
+		printk(KERN_ERR "locks_insert_block: removing duplicated lock "
+			"(pid=%d %Ld-%Ld type=%d)\n", waiter->fl_pid,
+			waiter->fl_start, waiter->fl_end, waiter->fl_type);
+		locks_delete_block(waiter);
+	}
+	list_add_tail(&waiter->fl_block, &blocker->fl_block);
+	waiter->fl_next = blocker;
+	list_add(&waiter->fl_link, &blocked_list);
+}
+
+static inline
+void locks_notify_blocked(struct file_lock *waiter)
+{
+	if (waiter->fl_notify)
+		waiter->fl_notify(waiter);
+	else
+		wake_up(&waiter->fl_wait);
+}
+
+/* Wake up processes blocked waiting for blocker.
+ * If told to wait then schedule the processes until the block list
+ * is empty, otherwise empty the block list ourselves.
+ */
+static void locks_wake_up_blocks(struct file_lock *blocker, unsigned int wait)
+{
+	while (!list_empty(&blocker->fl_block)) {
+		struct file_lock *waiter = list_entry(blocker->fl_block.next, struct file_lock, fl_block);
+
+		if (wait) {
+			locks_notify_blocked(waiter);
+			/* Let the blocked process remove waiter from the
+			 * block list when it gets scheduled.
+			 */
+			yield();
+		} else {
+			/* Remove waiter from the block list, because by the
+			 * time it wakes up blocker won't exist any more.
+			 */
+			locks_delete_block(waiter);
+			locks_notify_blocked(waiter);
+		}
+	}
+}
+
+/* Insert file lock fl into an inode's lock list at the position indicated
+ * by pos. At the same time add the lock to the global file lock list.
+ */
+static void locks_insert_lock(struct file_lock **pos, struct file_lock *fl)
+{
+	list_add(&fl->fl_link, &file_lock_list);
+
+	/* insert into file's list */
+	fl->fl_next = *pos;
+	*pos = fl;
+
+	if (fl->fl_insert)
+		fl->fl_insert(fl);
+}
+
+/*
+ * Remove lock from the lock lists
+ */
+static inline void _unhash_lock(struct file_lock **thisfl_p)
+{
+	struct file_lock *fl = *thisfl_p;
+
+	*thisfl_p = fl->fl_next;
+	fl->fl_next = NULL;
+
+	list_del_init(&fl->fl_link);
+}
+
+/*
+ * Wake up processes that are blocked waiting for this lock,
+ * notify the FS that the lock has been cleared and
+ * finally free the lock.
+ */
+static inline void _delete_lock(struct file_lock *fl, unsigned int wait)
+{
+	fasync_helper(0, fl->fl_file, 0, &fl->fl_fasync);
+	if (fl->fl_fasync != NULL){
+		printk(KERN_ERR "locks_delete_lock: fasync == %p\n", fl->fl_fasync);
+		fl->fl_fasync = NULL;
+	}
+
+	if (fl->fl_remove)
+		fl->fl_remove(fl);
+
+	locks_wake_up_blocks(fl, wait);
+	locks_free_lock(fl);
+}
+
+/*
+ * Delete a lock and then free it.
+ */
+static void locks_delete_lock(struct file_lock **thisfl_p, unsigned int wait)
+{
+	struct file_lock *fl = *thisfl_p;
+
+	_unhash_lock(thisfl_p);
+	_delete_lock(fl, wait);
+}
+
+/*
+ * Call back client filesystem in order to get it to unregister a lock,
+ * then delete lock. Essentially useful only in locks_remove_*().
+ * Note: this must be called with the semaphore already held!
+ */
+static inline void locks_unlock_delete(struct file_lock **thisfl_p)
+{
+	struct file_lock *fl = *thisfl_p;
+	int (*lock)(struct file *, int, struct file_lock *);
+
+	_unhash_lock(thisfl_p);
+	if (fl->fl_file->f_op &&
+	    (lock = fl->fl_file->f_op->lock) != NULL) {
+		fl->fl_type = F_UNLCK;
+		lock(fl->fl_file, F_SETLK, fl);
+	}
+	_delete_lock(fl, 0);
+}
+
+/* Determine if lock sys_fl blocks lock caller_fl. Common functionality
+ * checks for shared/exclusive status of overlapping locks.
+ */
+static int locks_conflict(struct file_lock *caller_fl, struct file_lock *sys_fl)
+{
+	switch (caller_fl->fl_type) {
+	case F_RDLCK:
+		return (sys_fl->fl_type == F_WRLCK);
+
+	case F_WRLCK:
+		return (1);
+
+	default:
+		printk(KERN_ERR "locks_conflict(): impossible lock type - %d\n",
+		       caller_fl->fl_type);
+		break;
+	}
+	return (0);	/* This should never happen */
+}
+
+/* Determine if lock sys_fl blocks lock caller_fl. POSIX specific
+ * checking before calling the locks_conflict().
+ */
+static int posix_locks_conflict(struct file_lock *caller_fl, struct file_lock *sys_fl)
+{
+	/* POSIX locks owned by the same process do not conflict with
+	 * each other.
+	 */
+	if (!(sys_fl->fl_flags & FL_POSIX) ||
+	    locks_same_owner(caller_fl, sys_fl))
+		return (0);
+
+	/* Check whether they overlap */
+	if (!locks_overlap(caller_fl, sys_fl))
+		return 0;
+
+	return (locks_conflict(caller_fl, sys_fl));
+}
+
+/* Determine if lock sys_fl blocks lock caller_fl. FLOCK specific
+ * checking before calling the locks_conflict().
+ */
+static int flock_locks_conflict(struct file_lock *caller_fl, struct file_lock *sys_fl)
+{
+	/* FLOCK locks referring to the same filp do not conflict with
+	 * each other.
+	 */
+	if (!(sys_fl->fl_flags & FL_FLOCK) ||
+	    (caller_fl->fl_file == sys_fl->fl_file))
+		return (0);
+#ifdef MSNFS
+	if ((caller_fl->fl_type & LOCK_MAND) || (sys_fl->fl_type & LOCK_MAND))
+		return 0;
+#endif
+
+	return (locks_conflict(caller_fl, sys_fl));
+}
+
+static int interruptible_sleep_on_locked(wait_queue_head_t *fl_wait, int timeout)
+{
+	int result = 0;
+	DECLARE_WAITQUEUE(wait, current);
+
+	current->state = TASK_INTERRUPTIBLE;
+	add_wait_queue(fl_wait, &wait);
+	if (timeout == 0)
+		schedule();
+	else
+		result = schedule_timeout(timeout);
+	if (signal_pending(current))
+		result = -ERESTARTSYS;
+	remove_wait_queue(fl_wait, &wait);
+	current->state = TASK_RUNNING;
+	return result;
+}
+
+static int locks_block_on(struct file_lock *blocker, struct file_lock *waiter)
+{
+	int result;
+	locks_insert_block(blocker, waiter);
+	result = interruptible_sleep_on_locked(&waiter->fl_wait, 0);
+	locks_delete_block(waiter);
+	return result;
+}
+
+static int locks_block_on_timeout(struct file_lock *blocker, struct file_lock *waiter, int time)
+{
+	int result;
+	locks_insert_block(blocker, waiter);
+	result = interruptible_sleep_on_locked(&waiter->fl_wait, time);
+	locks_delete_block(waiter);
+	return result;
+}
+
+struct file_lock *
+posix_test_lock(struct file *filp, struct file_lock *fl)
+{
+	struct file_lock *cfl;
+
+	lock_kernel();
+	for (cfl = filp->f_dentry->d_inode->i_flock; cfl; cfl = cfl->fl_next) {
+		if (!(cfl->fl_flags & FL_POSIX))
+			continue;
+		if (posix_locks_conflict(cfl, fl))
+			break;
+	}
+	unlock_kernel();
+
+	return (cfl);
+}
+
+/* This function tests for deadlock condition before putting a process to
+ * sleep. The detection scheme is no longer recursive. Recursive was neat,
+ * but dangerous - we risked stack corruption if the lock data was bad, or
+ * if the recursion was too deep for any other reason.
+ *
+ * We rely on the fact that a task can only be on one lock's wait queue
+ * at a time. When we find blocked_task on a wait queue we can re-search
+ * with blocked_task equal to that queue's owner, until either blocked_task
+ * isn't found, or blocked_task is found on a queue owned by my_task.
+ *
+ * Note: the above assumption may not be true when handling lock requests
+ * from a broken NFS client. But broken NFS clients have a lot more to
+ * worry about than proper deadlock detection anyway... --okir
+ */
+int posix_locks_deadlock(struct file_lock *caller_fl,
+				struct file_lock *block_fl)
+{
+	struct list_head *tmp;
+	fl_owner_t caller_owner, blocked_owner;
+	unsigned int	 caller_pid, blocked_pid;
+
+	caller_owner = caller_fl->fl_owner;
+	caller_pid = caller_fl->fl_pid;
+	blocked_owner = block_fl->fl_owner;
+	blocked_pid = block_fl->fl_pid;
+
+next_task:
+	if (caller_owner == blocked_owner && caller_pid == blocked_pid)
+		return 1;
+	list_for_each(tmp, &blocked_list) {
+		struct file_lock *fl = list_entry(tmp, struct file_lock, fl_link);
+		if ((fl->fl_owner == blocked_owner)
+		    && (fl->fl_pid == blocked_pid)) {
+			fl = fl->fl_next;
+			blocked_owner = fl->fl_owner;
+			blocked_pid = fl->fl_pid;
+			goto next_task;
+		}
+	}
+	return 0;
+}
+
+int locks_mandatory_locked(struct inode *inode)
+{
+	fl_owner_t owner = current->files;
+	struct file_lock *fl;
+
+	/*
+	 * Search the lock list for this inode for any POSIX locks.
+	 */
+	lock_kernel();
+	for (fl = inode->i_flock; fl != NULL; fl = fl->fl_next) {
+		if (!(fl->fl_flags & FL_POSIX))
+			continue;
+		if (fl->fl_owner != owner)
+			break;
+	}
+	unlock_kernel();
+	return fl ? -EAGAIN : 0;
+}
+
+int locks_mandatory_area(int read_write, struct inode *inode,
+			 struct file *filp, loff_t offset,
+			 size_t count)
+{
+	struct file_lock *fl;
+	struct file_lock *new_fl = locks_alloc_lock();
+	int error;
+
+	if (new_fl == NULL)
+		return -ENOMEM;
+
+	new_fl->fl_owner = current->files;
+	new_fl->fl_pid = current->pid;
+	new_fl->fl_file = filp;
+	new_fl->fl_flags = FL_POSIX | FL_ACCESS;
+	new_fl->fl_type = (read_write == FLOCK_VERIFY_WRITE) ? F_WRLCK : F_RDLCK;
+	new_fl->fl_start = offset;
+	new_fl->fl_end = offset + count - 1;
+
+	error = 0;
+	lock_kernel();
+
+repeat:
+	/* Search the lock list for this inode for locks that conflict with
+	 * the proposed read/write.
+	 */
+	for (fl = inode->i_flock; fl != NULL; fl = fl->fl_next) {
+		if (!(fl->fl_flags & FL_POSIX))
+			continue;
+		if (fl->fl_start > new_fl->fl_end)
+			break;
+		if (posix_locks_conflict(new_fl, fl)) {
+			error = -EAGAIN;
+			if (filp && (filp->f_flags & O_NONBLOCK))
+				break;
+			error = -EDEADLK;
+			if (posix_locks_deadlock(new_fl, fl))
+				break;
+	
+			error = locks_block_on(fl, new_fl);
+			if (error != 0)
+				break;
+	
+			/*
+			 * If we've been sleeping someone might have
+			 * changed the permissions behind our back.
+			 */
+			if ((inode->i_mode & (S_ISGID | S_IXGRP)) != S_ISGID)
+				break;
+			goto repeat;
+		}
+	}
+	locks_free_lock(new_fl);
+	unlock_kernel();
+	return error;
+}
+
+/* Try to create a FLOCK lock on filp. We always insert new FLOCK locks
+ * at the head of the list, but that's secret knowledge known only to
+ * flock_lock_file and posix_lock_file.
+ */
+static int flock_lock_file(struct file *filp, unsigned int lock_type,
+			   unsigned int wait)
+{
+	struct file_lock *fl;
+	struct file_lock *new_fl = NULL;
+	struct file_lock **before;
+	struct inode * inode = filp->f_dentry->d_inode;
+	int error, change;
+	int unlock = (lock_type == F_UNLCK);
+
+	/*
+	 * If we need a new lock, get it in advance to avoid races.
+	 */
+	if (!unlock) {
+		error = -ENOLCK;
+		new_fl = flock_make_lock(filp, lock_type);
+		if (!new_fl)
+			return error;
+	}
+
+	error = 0;
+search:
+	change = 0;
+	before = &inode->i_flock;
+	while (((fl = *before) != NULL) && (fl->fl_flags & FL_FLOCK)) {
+		if (filp == fl->fl_file) {
+			if (lock_type == fl->fl_type)
+				goto out;
+			change = 1;
+			break;
+		}
+		before = &fl->fl_next;
+	}
+	/* change means that we are changing the type of an existing lock,
+	 * or else unlocking it.
+	 */
+	if (change) {
+		/* N.B. What if the wait argument is false? */
+		locks_delete_lock(before, !unlock);
+		/*
+		 * If we waited, another lock may have been added ...
+		 */
+		if (!unlock)
+			goto search;
+	}
+	if (unlock)
+		goto out;
+
+repeat:
+	for (fl = inode->i_flock; (fl != NULL) && (fl->fl_flags & FL_FLOCK);
+	     fl = fl->fl_next) {
+		if (!flock_locks_conflict(new_fl, fl))
+			continue;
+		error = -EAGAIN;
+		if (!wait)
+			goto out;
+		error = locks_block_on(fl, new_fl);
+		if (error != 0)
+			goto out;
+		goto repeat;
+	}
+	locks_insert_lock(&inode->i_flock, new_fl);
+	new_fl = NULL;
+	error = 0;
+
+out:
+	if (new_fl)
+		locks_free_lock(new_fl);
+	return error;
+}
+
+/**
+ *	posix_lock_file:
+ *	@filp: The file to apply the lock to
+ *	@caller: The lock to be applied
+ *	@wait: 1 to retry automatically, 0 to return -EAGAIN
+ *
+ * Add a POSIX style lock to a file.
+ * We merge adjacent locks whenever possible. POSIX locks are sorted by owner
+ * task, then by starting address
+ *
+ * Kai Petzke writes:
+ * To make freeing a lock much faster, we keep a pointer to the lock before the
+ * actual one. But the real gain of the new coding was, that lock_it() and
+ * unlock_it() became one function.
+ *
+ * To all purists: Yes, I use a few goto's. Just pass on to the next function.
+ */
+
+int posix_lock_file(struct file *filp, struct file_lock *caller,
+			   unsigned int wait)
+{
+	struct file_lock *fl;
+	struct file_lock *new_fl, *new_fl2;
+	struct file_lock *left = NULL;
+	struct file_lock *right = NULL;
+	struct file_lock **before;
+	struct inode * inode = filp->f_dentry->d_inode;
+	int error, added = 0;
+
+	/*
+	 * We may need two file_lock structures for this operation,
+	 * so we get them in advance to avoid races.
+	 */
+	new_fl = locks_alloc_lock();
+	new_fl2 = locks_alloc_lock();
+	error = -ENOLCK; /* "no luck" */
+	if (!(new_fl && new_fl2))
+		goto out_nolock;
+
+	lock_kernel();
+	if (caller->fl_type != F_UNLCK) {
+  repeat:
+		for (fl = inode->i_flock; fl != NULL; fl = fl->fl_next) {
+			if (!(fl->fl_flags & FL_POSIX))
+				continue;
+			if (!posix_locks_conflict(caller, fl))
+				continue;
+			error = -EAGAIN;
+			if (!wait)
+				goto out;
+			error = -EDEADLK;
+			if (posix_locks_deadlock(caller, fl))
+				goto out;
+
+			error = locks_block_on(fl, caller);
+			if (error != 0)
+				goto out;
+			goto repeat;
+  		}
+  	}
+
+	/*
+	 * We've allocated the new locks in advance, so there are no
+	 * errors possible (and no blocking operations) from here on.
+	 * 
+	 * Find the first old lock with the same owner as the new lock.
+	 */
+	
+	before = &inode->i_flock;
+
+	/* First skip locks owned by other processes.
+	 */
+	while ((fl = *before) && (!(fl->fl_flags & FL_POSIX) ||
+				  !locks_same_owner(caller, fl))) {
+		before = &fl->fl_next;
+	}
+
+	/* Process locks with this owner.
+	 */
+	while ((fl = *before) && locks_same_owner(caller, fl)) {
+		/* Detect adjacent or overlapping regions (if same lock type)
+		 */
+		if (caller->fl_type == fl->fl_type) {
+			if (fl->fl_end < caller->fl_start - 1)
+				goto next_lock;
+			/* If the next lock in the list has entirely bigger
+			 * addresses than the new one, insert the lock here.
+			 */
+			if (fl->fl_start > caller->fl_end + 1)
+				break;
+
+			/* If we come here, the new and old lock are of the
+			 * same type and adjacent or overlapping. Make one
+			 * lock yielding from the lower start address of both
+			 * locks to the higher end address.
+			 */
+			if (fl->fl_start > caller->fl_start)
+				fl->fl_start = caller->fl_start;
+			else
+				caller->fl_start = fl->fl_start;
+			if (fl->fl_end < caller->fl_end)
+				fl->fl_end = caller->fl_end;
+			else
+				caller->fl_end = fl->fl_end;
+			if (added) {
+				locks_delete_lock(before, 0);
+				continue;
+			}
+			caller = fl;
+			added = 1;
+		}
+		else {
+			/* Processing for different lock types is a bit
+			 * more complex.
+			 */
+			if (fl->fl_end < caller->fl_start)
+				goto next_lock;
+			if (fl->fl_start > caller->fl_end)
+				break;
+			if (caller->fl_type == F_UNLCK)
+				added = 1;
+			if (fl->fl_start < caller->fl_start)
+				left = fl;
+			/* If the next lock in the list has a higher end
+			 * address than the new one, insert the new one here.
+			 */
+			if (fl->fl_end > caller->fl_end) {
+				right = fl;
+				break;
+			}
+			if (fl->fl_start >= caller->fl_start) {
+				/* The new lock completely replaces an old
+				 * one (This may happen several times).
+				 */
+				if (added) {
+					locks_delete_lock(before, 0);
+					continue;
+				}
+				/* Replace the old lock with the new one.
+				 * Wake up anybody waiting for the old one,
+				 * as the change in lock type might satisfy
+				 * their needs.
+				 */
+				locks_wake_up_blocks(fl, 0);	/* This cannot schedule()! */
+				fl->fl_start = caller->fl_start;
+				fl->fl_end = caller->fl_end;
+				fl->fl_type = caller->fl_type;
+				fl->fl_u = caller->fl_u;
+				caller = fl;
+				added = 1;
+			}
+		}
+		/* Go on to next lock.
+		 */
+	next_lock:
+		before = &fl->fl_next;
+	}
+
+	error = 0;
+	if (!added) {
+		if (caller->fl_type == F_UNLCK)
+			goto out;
+		locks_copy_lock(new_fl, caller);
+		locks_insert_lock(before, new_fl);
+		new_fl = NULL;
+	}
+	if (right) {
+		if (left == right) {
+			/* The new lock breaks the old one in two pieces,
+			 * so we have to use the second new lock.
+			 */
+			left = new_fl2;
+			new_fl2 = NULL;
+			locks_copy_lock(left, right);
+			locks_insert_lock(before, left);
+		}
+		right->fl_start = caller->fl_end + 1;
+		locks_wake_up_blocks(right, 0);
+	}
+	if (left) {
+		left->fl_end = caller->fl_start - 1;
+		locks_wake_up_blocks(left, 0);
+	}
+out:
+	unlock_kernel();
+out_nolock:
+	/*
+	 * Free any unused locks.
+	 */
+	if (new_fl)
+		locks_free_lock(new_fl);
+	if (new_fl2)
+		locks_free_lock(new_fl2);
+	return error;
+}
+
+static inline int flock_translate_cmd(int cmd) {
+#ifdef MSNFS
+	if (cmd & LOCK_MAND)
+		return cmd & (LOCK_MAND | LOCK_RW);
+#endif
+	switch (cmd &~ LOCK_NB) {
+	case LOCK_SH:
+		return F_RDLCK;
+	case LOCK_EX:
+		return F_WRLCK;
+	case LOCK_UN:
+		return F_UNLCK;
+	}
+	return -EINVAL;
+}
+
+/* We already had a lease on this file; just change its type */
+static int lease_modify(struct file_lock **before, int arg)
+{
+	struct file_lock *fl = *before;
+	int error = assign_type(fl, arg);
+
+	if (error)
+		return error;
+	locks_wake_up_blocks(fl, 0);
+	if (arg == F_UNLCK) {
+		struct file *filp = fl->fl_file;
+
+		filp->f_owner.pid = 0;
+		filp->f_owner.uid = 0;
+		filp->f_owner.euid = 0;
+		filp->f_owner.signum = 0;
+		locks_delete_lock(before, 0);
+	}
+	return 0;
+}
+
+static void time_out_leases(struct inode *inode)
+{
+	struct file_lock **before;
+	struct file_lock *fl;
+
+	before = &inode->i_flock;
+	while ((fl = *before) && (fl->fl_flags & FL_LEASE)
+			&& (fl->fl_type & F_INPROGRESS)) {
+		if ((fl->fl_break_time == 0)
+				|| time_before(jiffies, fl->fl_break_time)) {
+			before = &fl->fl_next;
+			continue;
+		}
+		printk(KERN_INFO "lease broken - owner pid = %d\n", fl->fl_pid);
+		lease_modify(before, fl->fl_type & ~F_INPROGRESS);
+		if (fl == *before)	/* lease_modify may have freed fl */
+			before = &fl->fl_next;
+	}
+}
+
+/**
+ *	__get_lease	-	revoke all outstanding leases on file
+ *	@inode: the inode of the file to return
+ *	@mode: the open mode (read or write)
+ *
+ *	get_lease (inlined for speed) has checked there already
+ *	is a lease on this file.  Leases are broken on a call to open()
+ *	or truncate().  This function can sleep unless you
+ *	specified %O_NONBLOCK to your open().
+ */
+int __get_lease(struct inode *inode, unsigned int mode)
+{
+	int error = 0, future;
+	struct file_lock *new_fl, *flock;
+	struct file_lock *fl;
+	int alloc_err;
+	unsigned long break_time;
+	int i_have_this_lease = 0;
+
+	alloc_err = lease_alloc(NULL, mode & FMODE_WRITE ? F_WRLCK : F_RDLCK,
+			&new_fl);
+
+	lock_kernel();
+
+	time_out_leases(inode);
+
+	flock = inode->i_flock;
+	if ((flock == NULL) || (flock->fl_flags & FL_LEASE) == 0)
+		goto out;
+
+	for (fl = flock; fl && (fl->fl_flags & FL_LEASE); fl = fl->fl_next)
+		if (fl->fl_owner == current->files)
+			i_have_this_lease = 1;
+
+	if (mode & FMODE_WRITE) {
+		/* If we want write access, we have to revoke any lease. */
+		future = F_UNLCK | F_INPROGRESS;
+	} else if (flock->fl_type & F_INPROGRESS) {
+		/* If the lease is already being broken, we just leave it */
+		future = flock->fl_type;
+	} else if (flock->fl_type & F_WRLCK) {
+		/* Downgrade the exclusive lease to a read-only lease. */
+		future = F_RDLCK | F_INPROGRESS;
+	} else {
+		/* the existing lease was read-only, so we can read too. */
+		goto out;
+	}
+
+	if (alloc_err && !i_have_this_lease && ((mode & O_NONBLOCK) == 0)) {
+		error = alloc_err;
+		goto out;
+	}
+
+	break_time = 0;
+	if (lease_break_time > 0) {
+		break_time = jiffies + lease_break_time * HZ;
+		if (break_time == 0)
+			break_time++;	/* so that 0 means no break time */
+	}
+
+	for (fl = flock; fl && (fl->fl_flags & FL_LEASE); fl = fl->fl_next) {
+		if (fl->fl_type != future) {
+			fl->fl_type = future;
+			fl->fl_break_time = break_time;
+			kill_fasync(&fl->fl_fasync, SIGIO, POLL_MSG);
+		}
+	}
+
+	if (i_have_this_lease || (mode & O_NONBLOCK)) {
+		error = -EWOULDBLOCK;
+		goto out;
+	}
+
+restart:
+	break_time = flock->fl_break_time;
+	if (break_time != 0) {
+		break_time -= jiffies;
+		if (break_time == 0)
+			break_time++;
+	}
+	error = locks_block_on_timeout(flock, new_fl, break_time);
+	if (error >= 0) {
+		if (error == 0)
+			time_out_leases(inode);
+		/* Wait for the next lease that has not been broken yet */
+		for (flock = inode->i_flock;
+				flock && (flock->fl_flags & FL_LEASE);
+				flock = flock->fl_next) {
+			if (flock->fl_type & F_INPROGRESS)
+				goto restart;
+		}
+		error = 0;
+	}
+
+out:
+	unlock_kernel();
+	if (!alloc_err)
+		locks_free_lock(new_fl);
+	return error;
+}
+
+/**
+ *	lease_get_mtime
+ *	@inode: the inode
+ *
+ * This is to force NFS clients to flush their caches for files with
+ * exclusive leases.  The justification is that if someone has an
+ * exclusive lease, then they could be modifiying it.
+ */
+time_t lease_get_mtime(struct inode *inode)
+{
+	struct file_lock *flock = inode->i_flock;
+	if (flock && (flock->fl_flags & FL_LEASE) && (flock->fl_type & F_WRLCK))
+		return CURRENT_TIME;
+	return inode->i_mtime;
+}
+
+/**
+ *	fcntl_getlease - Enquire what lease is currently active
+ *	@filp: the file
+ *
+ *	The value returned by this function will be one of
+ *	(if no lease break is pending):
+ *
+ *	%F_RDLCK to indicate a shared lease is held.
+ *
+ *	%F_WRLCK to indicate an exclusive lease is held.
+ *
+ *	%F_UNLCK to indicate no lease is held.
+ *
+ *	(if a lease break is pending):
+ *
+ *	%F_RDLCK to indicate an exclusive lease needs to be
+ *		changed to a shared lease (or removed).
+ *
+ *	%F_UNLCK to indicate the lease needs to be removed.
+ *
+ *	XXX: sfr & willy disagree over whether F_INPROGRESS
+ *	should be returned to userspace.
+ */
+int fcntl_getlease(struct file *filp)
+{
+	struct file_lock *fl;
+	int type = F_UNLCK;
+
+	lock_kernel();
+	time_out_leases(filp->f_dentry->d_inode);
+	for (fl = filp->f_dentry->d_inode->i_flock;
+			fl && (fl->fl_flags & FL_LEASE);
+			fl = fl->fl_next) {
+		if (fl->fl_file == filp) {
+			type = fl->fl_type & ~F_INPROGRESS;
+			break;
+		}
+	}
+	unlock_kernel();
+	return type;
+}
+
+/**
+ *	fcntl_setlease	-	sets a lease on an open file
+ *	@fd: open file descriptor
+ *	@filp: file pointer
+ *	@arg: type of lease to obtain
+ *
+ *	Call this fcntl to establish a lease on the file.
+ *	Note that you also need to call %F_SETSIG to
+ *	receive a signal when the lease is broken.
+ */
+int fcntl_setlease(unsigned int fd, struct file *filp, long arg)
+{
+	struct file_lock *fl, **before, **my_before = NULL;
+	struct dentry *dentry;
+	struct inode *inode;
+	int error, rdlease_count = 0, wrlease_count = 0;
+
+	dentry = filp->f_dentry;
+	inode = dentry->d_inode;
+
+	if ((current->fsuid != inode->i_uid) && !capable(CAP_LEASE))
+		return -EACCES;
+	if (!S_ISREG(inode->i_mode))
+		return -EINVAL;
+
+	lock_kernel();
+
+	time_out_leases(inode);
+
+	/*
+	 * FIXME: What about F_RDLCK and files open for writing?
+	 */
+	error = -EAGAIN;
+	if ((arg == F_WRLCK)
+	    && ((atomic_read(&dentry->d_count) > 1)
+		|| (atomic_read(&inode->i_count) > 1)))
+		goto out_unlock;
+
+	/*
+	 * At this point, we know that if there is an exclusive
+	 * lease on this file, then we hold it on this filp
+	 * (otherwise our open of this file would have blocked).
+	 * And if we are trying to acquire an exclusive lease,
+	 * then the file is not open by anyone (including us)
+	 * except for this filp.
+	 */
+	for (before = &inode->i_flock;
+			((fl = *before) != NULL) && (fl->fl_flags & FL_LEASE);
+			before = &fl->fl_next) {
+		if (fl->fl_file == filp)
+			my_before = before;
+		else if (fl->fl_type == (F_INPROGRESS | F_UNLCK))
+			/*
+			 * Someone is in the process of opening this
+			 * file for writing so we may not take an
+			 * exclusive lease on it.
+			 */
+			wrlease_count++;
+		else
+			rdlease_count++;
+	}
+
+	if ((arg == F_RDLCK && (wrlease_count > 0)) ||
+	    (arg == F_WRLCK && ((rdlease_count + wrlease_count) > 0)))
+		goto out_unlock;
+
+	if (my_before != NULL) {
+		error = lease_modify(my_before, arg);
+		goto out_unlock;
+	}
+
+	error = 0;
+	if (arg == F_UNLCK)
+		goto out_unlock;
+
+	error = -EINVAL;
+	if (!leases_enable)
+		goto out_unlock;
+
+	error = lease_alloc(filp, arg, &fl);
+	if (error)
+		goto out_unlock;
+
+	error = fasync_helper(fd, filp, 1, &fl->fl_fasync);
+	if (error < 0) {
+		locks_free_lock(fl);
+		goto out_unlock;
+	}
+	fl->fl_next = *before;
+	*before = fl;
+	list_add(&fl->fl_link, &file_lock_list);
+	filp->f_owner.pid = current->pid;
+	filp->f_owner.uid = current->uid;
+	filp->f_owner.euid = current->euid;
+out_unlock:
+	unlock_kernel();
+	return error;
+}
+
+/**
+ *	sys_flock: - flock() system call.
+ *	@fd: the file descriptor to lock.
+ *	@cmd: the type of lock to apply.
+ *
+ *	Apply a %FL_FLOCK style lock to an open file descriptor.
+ *	The @cmd can be one of
+ *
+ *	%LOCK_SH -- a shared lock.
+ *
+ *	%LOCK_EX -- an exclusive lock.
+ *
+ *	%LOCK_UN -- remove an existing lock.
+ *
+ *	%LOCK_MAND -- a `mandatory' flock.  This exists to emulate Windows Share Modes.
+ *
+ *	%LOCK_MAND can be combined with %LOCK_READ or %LOCK_WRITE to allow other
+ *	processes read and write access respectively.
+ */
+asmlinkage long sys_flock(unsigned int fd, unsigned int cmd)
+{
+	struct file *filp;
+	int error, type;
+
+	error = -EBADF;
+	filp = fget(fd);
+	if (!filp)
+		goto out;
+
+	error = flock_translate_cmd(cmd);
+	if (error < 0)
+		goto out_putf;
+	type = error;
+
+	error = -EBADF;
+	if ((type != F_UNLCK)
+#ifdef MSNFS
+		&& !(type & LOCK_MAND)
+#endif
+		&& !(filp->f_mode & 3))
+		goto out_putf;
+
+	lock_kernel();
+	error = flock_lock_file(filp, type,
+				(cmd & (LOCK_UN | LOCK_NB)) ? 0 : 1);
+	unlock_kernel();
+
+out_putf:
+	fput(filp);
+out:
+	return error;
+}
+
+/* Report the first existing lock that would conflict with l.
+ * This implements the F_GETLK command of fcntl().
+ */
+int fcntl_getlk(unsigned int fd, struct flock *l)
+{
+	struct file *filp;
+	struct file_lock *fl, file_lock;
+	struct flock flock;
+	int error;
+
+	error = -EFAULT;
+	if (copy_from_user(&flock, l, sizeof(flock)))
+		goto out;
+	error = -EINVAL;
+	if ((flock.l_type != F_RDLCK) && (flock.l_type != F_WRLCK))
+		goto out;
+
+	error = -EBADF;
+	filp = fget(fd);
+	if (!filp)
+		goto out;
+
+	error = flock_to_posix_lock(filp, &file_lock, &flock);
+	if (error)
+		goto out_putf;
+
+	if (filp->f_op && filp->f_op->lock) {
+		error = filp->f_op->lock(filp, F_GETLK, &file_lock);
+		if (error < 0)
+			goto out_putf;
+		else if (error == LOCK_USE_CLNT)
+		  /* Bypass for NFS with no locking - 2.0.36 compat */
+		  fl = posix_test_lock(filp, &file_lock);
+		else
+		  fl = (file_lock.fl_type == F_UNLCK ? NULL : &file_lock);
+	} else {
+		fl = posix_test_lock(filp, &file_lock);
+	}
+ 
+	flock.l_type = F_UNLCK;
+	if (fl != NULL) {
+		flock.l_pid = fl->fl_pid;
+#if BITS_PER_LONG == 32
+		/*
+		 * Make sure we can represent the posix lock via
+		 * legacy 32bit flock.
+		 */
+		error = -EOVERFLOW;
+		if (fl->fl_start > OFFT_OFFSET_MAX)
+			goto out_putf;
+		if ((fl->fl_end != OFFSET_MAX)
+		    && (fl->fl_end > OFFT_OFFSET_MAX))
+			goto out_putf;
+#endif
+		flock.l_start = fl->fl_start;
+		flock.l_len = fl->fl_end == OFFSET_MAX ? 0 :
+			fl->fl_end - fl->fl_start + 1;
+		flock.l_whence = 0;
+		flock.l_type = fl->fl_type;
+	}
+	error = -EFAULT;
+	if (!copy_to_user(l, &flock, sizeof(flock)))
+		error = 0;
+  
+out_putf:
+	fput(filp);
+out:
+	return error;
+}
+
+/* Apply the lock described by l to an open file descriptor.
+ * This implements both the F_SETLK and F_SETLKW commands of fcntl().
+ */
+int fcntl_setlk(unsigned int fd, unsigned int cmd, struct flock *l)
+{
+	struct file *filp;
+	struct file_lock *file_lock = locks_alloc_lock();
+	struct flock flock;
+	struct inode *inode;
+	int error;
+
+	if (file_lock == NULL)
+		return -ENOLCK;
+
+	/*
+	 * This might block, so we do it before checking the inode.
+	 */
+	error = -EFAULT;
+	if (copy_from_user(&flock, l, sizeof(flock)))
+		goto out;
+
+	/* Get arguments and validate them ...
+	 */
+
+	error = -EBADF;
+	filp = fget(fd);
+	if (!filp)
+		goto out;
+
+	error = -EINVAL;
+	inode = filp->f_dentry->d_inode;
+
+	/* Don't allow mandatory locks on files that may be memory mapped
+	 * and shared.
+	 */
+	if (IS_MANDLOCK(inode) &&
+	    (inode->i_mode & (S_ISGID | S_IXGRP)) == S_ISGID) {
+		struct address_space *mapping = inode->i_mapping;
+
+		if (mapping->i_mmap_shared != NULL) {
+			error = -EAGAIN;
+			goto out_putf;
+		}
+	}
+
+	error = flock_to_posix_lock(filp, file_lock, &flock);
+	if (error)
+		goto out_putf;
+	
+	error = -EBADF;
+	switch (flock.l_type) {
+	case F_RDLCK:
+		if (!(filp->f_mode & FMODE_READ))
+			goto out_putf;
+		break;
+	case F_WRLCK:
+		if (!(filp->f_mode & FMODE_WRITE))
+			goto out_putf;
+		break;
+	case F_UNLCK:
+		break;
+	case F_SHLCK:
+	case F_EXLCK:
+#ifdef __sparc__
+/* warn a bit for now, but don't overdo it */
+{
+	static int count = 0;
+	if (!count) {
+		count=1;
+		printk(KERN_WARNING
+		       "fcntl_setlk() called by process %d (%s) with broken flock() emulation\n",
+		       current->pid, current->comm);
+	}
+}
+		if (!(filp->f_mode & 3))
+			goto out_putf;
+		break;
+#endif
+	default:
+		error = -EINVAL;
+		goto out_putf;
+	}
+
+	if (filp->f_op && filp->f_op->lock != NULL) {
+		error = filp->f_op->lock(filp, cmd, file_lock);
+		if (error < 0)
+			goto out_putf;
+	}
+	error = posix_lock_file(filp, file_lock, cmd == F_SETLKW);
+
+out_putf:
+	fput(filp);
+out:
+	locks_free_lock(file_lock);
+	return error;
+}
+
+#if BITS_PER_LONG == 32
+/* Report the first existing lock that would conflict with l.
+ * This implements the F_GETLK command of fcntl().
+ */
+int fcntl_getlk64(unsigned int fd, struct flock64 *l)
+{
+	struct file *filp;
+	struct file_lock *fl, file_lock;
+	struct flock64 flock;
+	int error;
+
+	error = -EFAULT;
+	if (copy_from_user(&flock, l, sizeof(flock)))
+		goto out;
+	error = -EINVAL;
+	if ((flock.l_type != F_RDLCK) && (flock.l_type != F_WRLCK))
+		goto out;
+
+	error = -EBADF;
+	filp = fget(fd);
+	if (!filp)
+		goto out;
+
+	error = flock64_to_posix_lock(filp, &file_lock, &flock);
+	if (error)
+		goto out_putf;
+
+	if (filp->f_op && filp->f_op->lock) {
+		error = filp->f_op->lock(filp, F_GETLK, &file_lock);
+		if (error < 0)
+			goto out_putf;
+		else if (error == LOCK_USE_CLNT)
+		  /* Bypass for NFS with no locking - 2.0.36 compat */
+		  fl = posix_test_lock(filp, &file_lock);
+		else
+		  fl = (file_lock.fl_type == F_UNLCK ? NULL : &file_lock);
+	} else {
+		fl = posix_test_lock(filp, &file_lock);
+	}
+ 
+	flock.l_type = F_UNLCK;
+	if (fl != NULL) {
+		flock.l_pid = fl->fl_pid;
+		flock.l_start = fl->fl_start;
+		flock.l_len = fl->fl_end == OFFSET_MAX ? 0 :
+			fl->fl_end - fl->fl_start + 1;
+		flock.l_whence = 0;
+		flock.l_type = fl->fl_type;
+	}
+	error = -EFAULT;
+	if (!copy_to_user(l, &flock, sizeof(flock)))
+		error = 0;
+  
+out_putf:
+	fput(filp);
+out:
+	return error;
+}
+
+/* Apply the lock described by l to an open file descriptor.
+ * This implements both the F_SETLK and F_SETLKW commands of fcntl().
+ */
+int fcntl_setlk64(unsigned int fd, unsigned int cmd, struct flock64 *l)
+{
+	struct file *filp;
+	struct file_lock *file_lock = locks_alloc_lock();
+	struct flock64 flock;
+	struct inode *inode;
+	int error;
+
+	if (file_lock == NULL)
+		return -ENOLCK;
+
+	/*
+	 * This might block, so we do it before checking the inode.
+	 */
+	error = -EFAULT;
+	if (copy_from_user(&flock, l, sizeof(flock)))
+		goto out;
+
+	/* Get arguments and validate them ...
+	 */
+
+	error = -EBADF;
+	filp = fget(fd);
+	if (!filp)
+		goto out;
+
+	error = -EINVAL;
+	inode = filp->f_dentry->d_inode;
+
+	/* Don't allow mandatory locks on files that may be memory mapped
+	 * and shared.
+	 */
+	if (IS_MANDLOCK(inode) &&
+	    (inode->i_mode & (S_ISGID | S_IXGRP)) == S_ISGID) {
+		struct address_space *mapping = inode->i_mapping;
+
+		if (mapping->i_mmap_shared != NULL) {
+			error = -EAGAIN;
+			goto out_putf;
+		}
+	}
+
+	error = flock64_to_posix_lock(filp, file_lock, &flock);
+	if (error)
+		goto out_putf;
+	
+	error = -EBADF;
+	switch (flock.l_type) {
+	case F_RDLCK:
+		if (!(filp->f_mode & FMODE_READ))
+			goto out_putf;
+		break;
+	case F_WRLCK:
+		if (!(filp->f_mode & FMODE_WRITE))
+			goto out_putf;
+		break;
+	case F_UNLCK:
+		break;
+	case F_SHLCK:
+	case F_EXLCK:
+	default:
+		error = -EINVAL;
+		goto out_putf;
+	}
+
+	if (filp->f_op && filp->f_op->lock != NULL) {
+		error = filp->f_op->lock(filp, cmd, file_lock);
+		if (error < 0)
+			goto out_putf;
+	}
+	error = posix_lock_file(filp, file_lock, cmd == F_SETLKW64);
+
+out_putf:
+	fput(filp);
+out:
+	locks_free_lock(file_lock);
+	return error;
+}
+#endif /* BITS_PER_LONG == 32 */
+
+/*
+ * This function is called when the file is being removed
+ * from the task's fd array.
+ */
+void locks_remove_posix(struct file *filp, fl_owner_t owner)
+{
+	struct inode * inode = filp->f_dentry->d_inode;
+	struct file_lock *fl;
+	struct file_lock **before;
+
+	/*
+	 * For POSIX locks we free all locks on this file for the given task.
+	 */
+	if (!inode->i_flock) {
+		/*
+		 * Notice that something might be grabbing a lock right now.
+		 * Consider it as a race won by us - event is async, so even if
+		 * we miss the lock added we can trivially consider it as added
+		 * after we went through this call.
+		 */
+		return;
+	}
+	lock_kernel();
+	before = &inode->i_flock;
+	while ((fl = *before) != NULL) {
+		if ((fl->fl_flags & FL_POSIX) && fl->fl_owner == owner) {
+			struct file *filp = fl->fl_file;
+			/* Note: locks_unlock_delete() can sleep, and
+			 * so we may race with the call to sys_close()
+			 * by the thread that actually owns this filp.
+			 */
+			get_file(filp);
+			locks_unlock_delete(before);
+			fput(filp);
+			before = &inode->i_flock;
+			continue;
+		}
+		before = &fl->fl_next;
+	}
+	unlock_kernel();
+}
+
+/*
+ * This function is called on the last close of an open file.
+ */
+void locks_remove_flock(struct file *filp)
+{
+	struct inode * inode = filp->f_dentry->d_inode; 
+	struct file_lock *fl;
+	struct file_lock **before;
+
+	if (!inode->i_flock)
+		return;
+
+	lock_kernel();
+	before = &inode->i_flock;
+
+	while ((fl = *before) != NULL) {
+		if (fl->fl_file == filp) {
+			if (fl->fl_flags & FL_FLOCK) {
+				locks_delete_lock(before, 0);
+				continue;
+			}
+			if (fl->fl_flags & FL_LEASE) {
+				lease_modify(before, F_UNLCK);
+				continue;
+			}
+ 		}
+		before = &fl->fl_next;
+	}
+	unlock_kernel();
+}
+
+/**
+ *	posix_block_lock - blocks waiting for a file lock
+ *	@blocker: the lock which is blocking
+ *	@waiter: the lock which conflicts and has to wait
+ *
+ * lockd needs to block waiting for locks.
+ */
+void
+posix_block_lock(struct file_lock *blocker, struct file_lock *waiter)
+{
+	locks_insert_block(blocker, waiter);
+}
+
+/**
+ *	posix_unblock_lock - stop waiting for a file lock
+ *	@waiter: the lock which was waiting
+ *
+ *	lockd needs to block waiting for locks.
+ */
+void
+posix_unblock_lock(struct file_lock *waiter)
+{
+	if (!list_empty(&waiter->fl_block))
+		locks_delete_block(waiter);
+}
+
+static void lock_get_status(char* out, struct file_lock *fl, int id, char *pfx)
+{
+	struct inode *inode = NULL;
+
+	if (fl->fl_file != NULL)
+		inode = fl->fl_file->f_dentry->d_inode;
+
+	out += sprintf(out, "%d:%s ", id, pfx);
+	if (fl->fl_flags & FL_POSIX) {
+		out += sprintf(out, "%6s %s ",
+			     (fl->fl_flags & FL_ACCESS) ? "ACCESS" : "POSIX ",
+			     (inode == NULL) ? "*NOINODE*" :
+			     (IS_MANDLOCK(inode) &&
+			      (inode->i_mode & (S_IXGRP | S_ISGID)) == S_ISGID) ?
+			     "MANDATORY" : "ADVISORY ");
+	} else if (fl->fl_flags & FL_FLOCK) {
+#ifdef MSNFS
+		if (fl->fl_type & LOCK_MAND) {
+			out += sprintf(out, "FLOCK  MSNFS     ");
+		} else
+#endif
+			out += sprintf(out, "FLOCK  ADVISORY  ");
+	} else if (fl->fl_flags & FL_LEASE) {
+		out += sprintf(out, "LEASE  ");
+		if (fl->fl_type & F_INPROGRESS)
+			out += sprintf(out, "BREAKING  ");
+		else if (fl->fl_file)
+			out += sprintf(out, "ACTIVE    ");
+		else
+			out += sprintf(out, "BREAKER   ");
+	} else {
+		out += sprintf(out, "UNKNOWN UNKNOWN  ");
+	}
+#ifdef MSNFS
+	if (fl->fl_type & LOCK_MAND) {
+		out += sprintf(out, "%s ",
+			       (fl->fl_type & LOCK_READ)
+			       ? (fl->fl_type & LOCK_WRITE) ? "RW   " : "READ "
+			       : (fl->fl_type & LOCK_WRITE) ? "WRITE" : "NONE ");
+	} else
+#endif
+		out += sprintf(out, "%s ",
+			       (fl->fl_type & F_INPROGRESS)
+			       ? (fl->fl_type & F_UNLCK) ? "UNLCK" : "READ "
+			       : (fl->fl_type & F_WRLCK) ? "WRITE" : "READ ");
+	out += sprintf(out, "%d %s:%ld ",
+		     fl->fl_pid,
+		     inode ? kdevname(inode->i_dev) : "<none>",
+		     inode ? inode->i_ino : 0);
+	out += sprintf(out, "%Ld ", fl->fl_start);
+	if (fl->fl_end == OFFSET_MAX)
+		out += sprintf(out, "EOF ");
+	else
+		out += sprintf(out, "%Ld ", fl->fl_end);
+	sprintf(out, "%08lx %08lx %08lx %08lx %08lx\n",
+		(long)fl, (long)fl->fl_link.prev, (long)fl->fl_link.next,
+		(long)fl->fl_next, (long)fl->fl_block.next);
+}
+
+static void move_lock_status(char **p, off_t* pos, off_t offset)
+{
+	int len;
+	len = strlen(*p);
+	if(*pos >= offset) {
+		/* the complete line is valid */
+		*p += len;
+		*pos += len;
+		return;
+	}
+	if(*pos+len > offset) {
+		/* use the second part of the line */
+		int i = offset-*pos;
+		memmove(*p,*p+i,len-i);
+		*p += len-i;
+		*pos += len;
+		return;
+	}
+	/* discard the complete line */
+	*pos += len;
+}
+
+/**
+ *	get_locks_status	-	reports lock usage in /proc/locks
+ *	@buffer: address in userspace to write into
+ *	@start: ?
+ *	@offset: how far we are through the buffer
+ *	@length: how much to read
+ */
+
+int get_locks_status(char *buffer, char **start, off_t offset, int length)
+{
+	struct list_head *tmp;
+	char *q = buffer;
+	off_t pos = 0;
+	int i = 0;
+
+	lock_kernel();
+	list_for_each(tmp, &file_lock_list) {
+		struct list_head *btmp;
+		struct file_lock *fl = list_entry(tmp, struct file_lock, fl_link);
+		lock_get_status(q, fl, ++i, "");
+		move_lock_status(&q, &pos, offset);
+
+		if(pos >= offset+length)
+			goto done;
+
+		list_for_each(btmp, &fl->fl_block) {
+			struct file_lock *bfl = list_entry(btmp,
+					struct file_lock, fl_block);
+			lock_get_status(q, bfl, i, " ->");
+			move_lock_status(&q, &pos, offset);
+
+			if(pos >= offset+length)
+				goto done;
+		}
+	}
+done:
+	unlock_kernel();
+	*start = buffer;
+	if(q-buffer < length)
+		return (q-buffer);
+	return length;
+}
+
+void steal_locks(fl_owner_t from)
+{
+	struct list_head *tmp;
+
+	if (from == current->files)
+		return;
+
+	lock_kernel();
+	list_for_each(tmp, &file_lock_list) {
+		struct file_lock *fl = list_entry(tmp, struct file_lock,
+						  fl_link);
+		if (fl->fl_owner == from)
+			fl->fl_owner = current->files;
+	}
+	unlock_kernel();
+}
+
+#ifdef MSNFS
+/**
+ *	lock_may_read - checks that the region is free of locks
+ *	@inode: the inode that is being read
+ *	@start: the first byte to read
+ *	@len: the number of bytes to read
+ *
+ *	Emulates Windows locking requirements.  Whole-file
+ *	mandatory locks (share modes) can prohibit a read and
+ *	byte-range POSIX locks can prohibit a read if they overlap.
+ *
+ *	N.B. this function is only ever called
+ *	from knfsd and ownership of locks is never checked.
+ */
+int lock_may_read(struct inode *inode, loff_t start, unsigned long len)
+{
+	struct file_lock *fl;
+	int result = 1;
+	lock_kernel();
+	for (fl = inode->i_flock; fl != NULL; fl = fl->fl_next) {
+		if (fl->fl_flags == FL_POSIX) {
+			if (fl->fl_type == F_RDLCK)
+				continue;
+			if ((fl->fl_end < start) || (fl->fl_start > (start + len)))
+				continue;
+		} else if (fl->fl_flags == FL_FLOCK) {
+			if (!(fl->fl_type & LOCK_MAND))
+				continue;
+			if (fl->fl_type & LOCK_READ)
+				continue;
+		} else
+			continue;
+		result = 0;
+		break;
+	}
+	unlock_kernel();
+	return result;
+}
+
+/**
+ *	lock_may_write - checks that the region is free of locks
+ *	@inode: the inode that is being written
+ *	@start: the first byte to write
+ *	@len: the number of bytes to write
+ *
+ *	Emulates Windows locking requirements.  Whole-file
+ *	mandatory locks (share modes) can prohibit a write and
+ *	byte-range POSIX locks can prohibit a write if they overlap.
+ *
+ *	N.B. this function is only ever called
+ *	from knfsd and ownership of locks is never checked.
+ */
+int lock_may_write(struct inode *inode, loff_t start, unsigned long len)
+{
+	struct file_lock *fl;
+	int result = 1;
+	lock_kernel();
+	for (fl = inode->i_flock; fl != NULL; fl = fl->fl_next) {
+		if (fl->fl_flags == FL_POSIX) {
+			if ((fl->fl_end < start) || (fl->fl_start > (start + len)))
+				continue;
+		} else if (fl->fl_flags == FL_FLOCK) {
+			if (!(fl->fl_type & LOCK_MAND))
+				continue;
+			if (fl->fl_type & LOCK_WRITE)
+				continue;
+		} else
+			continue;
+		result = 0;
+		break;
+	}
+	unlock_kernel();
+	return result;
+}
+#endif
+
+static int __init filelock_init(void)
+{
+	filelock_cache = kmem_cache_create("file_lock_cache",
+			sizeof(struct file_lock), 0, 0, init_once, NULL);
+	if (!filelock_cache)
+		panic("cannot create file lock slab cache");
+	return 0;
+}
+
+module_init(filelock_init)
diff --git a/fs/minix/Makefile b/fs/minix/Makefile
new file mode 100644
index 00000000000000..13505618163370
--- /dev/null
+++ b/fs/minix/Makefile
@@ -0,0 +1,15 @@
+#
+# Makefile for the Linux minix filesystem routines.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile.
+
+O_TARGET := minix.o
+
+obj-y    := bitmap.o itree_v1.o itree_v2.o namei.o inode.o file.o dir.o
+obj-m    := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/minix/bitmap.c b/fs/minix/bitmap.c
new file mode 100644
index 00000000000000..6347bb16996d10
--- /dev/null
+++ b/fs/minix/bitmap.c
@@ -0,0 +1,276 @@
+/*
+ *  linux/fs/minix/bitmap.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ */
+
+/*
+ * Modified for 680x0 by Hamish Macdonald
+ * Fixed for 680x0 by Andreas Schwab
+ */
+
+/* bitmap.c contains the code that handles the inode and block bitmaps */
+
+#include <linux/fs.h>
+#include <linux/minix_fs.h>
+#include <linux/locks.h>
+
+#include <asm/bitops.h>
+
+static int nibblemap[] = { 4,3,3,2,3,2,2,1,3,2,2,1,2,1,1,0 };
+
+static unsigned long count_free(struct buffer_head *map[], unsigned numblocks, __u32 numbits)
+{
+	unsigned i, j, sum = 0;
+	struct buffer_head *bh;
+  
+	for (i=0; i<numblocks-1; i++) {
+		if (!(bh=map[i])) 
+			return(0);
+		for (j=0; j<BLOCK_SIZE; j++)
+			sum += nibblemap[bh->b_data[j] & 0xf]
+				+ nibblemap[(bh->b_data[j]>>4) & 0xf];
+	}
+
+	if (numblocks==0 || !(bh=map[numblocks-1]))
+		return(0);
+	i = ((numbits-(numblocks-1)*BLOCK_SIZE*8)/16)*2;
+	for (j=0; j<i; j++) {
+		sum += nibblemap[bh->b_data[j] & 0xf]
+			+ nibblemap[(bh->b_data[j]>>4) & 0xf];
+	}
+
+	i = numbits%16;
+	if (i!=0) {
+		i = *(__u16 *)(&bh->b_data[j]) | ~((1<<i) - 1);
+		sum += nibblemap[i & 0xf] + nibblemap[(i>>4) & 0xf];
+		sum += nibblemap[(i>>8) & 0xf] + nibblemap[(i>>12) & 0xf];
+	}
+	return(sum);
+}
+
+void minix_free_block(struct inode * inode, int block)
+{
+	struct super_block * sb = inode->i_sb;
+	struct buffer_head * bh;
+	unsigned int bit,zone;
+
+	if (!sb) {
+		printk("trying to free block on nonexistent device\n");
+		return;
+	}
+	if (block < sb->u.minix_sb.s_firstdatazone ||
+	    block >= sb->u.minix_sb.s_nzones) {
+		printk("trying to free block not in datazone\n");
+		return;
+	}
+	zone = block - sb->u.minix_sb.s_firstdatazone + 1;
+	bit = zone & 8191;
+	zone >>= 13;
+	if (zone >= sb->u.minix_sb.s_zmap_blocks) {
+		printk("minix_free_block: nonexistent bitmap buffer\n");
+		return;
+	}
+	bh = sb->u.minix_sb.s_zmap[zone];
+	if (!minix_test_and_clear_bit(bit,bh->b_data))
+		printk("free_block (%s:%d): bit already cleared\n",
+		       kdevname(sb->s_dev), block);
+	mark_buffer_dirty(bh);
+	return;
+}
+
+int minix_new_block(struct inode * inode)
+{
+	struct super_block * sb = inode->i_sb;
+	struct buffer_head * bh;
+	int i,j;
+
+	if (!sb) {
+		printk("trying to get new block from nonexistent device\n");
+		return 0;
+	}
+repeat:
+	j = 8192;
+	bh = NULL;
+	for (i = 0; i < sb->u.minix_sb.s_zmap_blocks; i++) {
+		bh = sb->u.minix_sb.s_zmap[i];
+		if ((j = minix_find_first_zero_bit(bh->b_data, 8192)) < 8192)
+			break;
+	}
+	if (!bh || j >= 8192)
+		return 0;
+	if (minix_test_and_set_bit(j,bh->b_data)) {
+		printk("new_block: bit already set");
+		goto repeat;
+	}
+	mark_buffer_dirty(bh);
+	j += i*8192 + sb->u.minix_sb.s_firstdatazone-1;
+	if (j < sb->u.minix_sb.s_firstdatazone ||
+	    j >= sb->u.minix_sb.s_nzones)
+		return 0;
+	return j;
+}
+
+unsigned long minix_count_free_blocks(struct super_block *sb)
+{
+	return (count_free(sb->u.minix_sb.s_zmap, sb->u.minix_sb.s_zmap_blocks,
+		sb->u.minix_sb.s_nzones - sb->u.minix_sb.s_firstdatazone + 1)
+		<< sb->u.minix_sb.s_log_zone_size);
+}
+
+struct minix_inode *
+minix_V1_raw_inode(struct super_block *sb, ino_t ino, struct buffer_head **bh)
+{
+	int block;
+	struct minix_sb_info *sbi = &sb->u.minix_sb;
+	struct minix_inode *p;
+
+	if (!ino || ino > sbi->s_ninodes) {
+		printk("Bad inode number on dev %s: %ld is out of range\n",
+		       bdevname(sb->s_dev), ino);
+		return NULL;
+	}
+	ino--;
+	block = 2 + sbi->s_imap_blocks + sbi->s_zmap_blocks +
+		 ino / MINIX_INODES_PER_BLOCK;
+	*bh = sb_bread(sb, block);
+	if (!*bh) {
+		printk("unable to read i-node block\n");
+		return NULL;
+	}
+	p = (void *)(*bh)->b_data;
+	return p + ino % MINIX_INODES_PER_BLOCK;
+}
+
+struct minix2_inode *
+minix_V2_raw_inode(struct super_block *sb, ino_t ino, struct buffer_head **bh)
+{
+	int block;
+	struct minix_sb_info *sbi = &sb->u.minix_sb;
+	struct minix2_inode *p;
+
+	*bh = NULL;
+	if (!ino || ino > sbi->s_ninodes) {
+		printk("Bad inode number on dev %s: %ld is out of range\n",
+		       bdevname(sb->s_dev), ino);
+		return NULL;
+	}
+	ino--;
+	block = 2 + sbi->s_imap_blocks + sbi->s_zmap_blocks +
+		 ino / MINIX2_INODES_PER_BLOCK;
+	*bh = sb_bread(sb, block);
+	if (!*bh) {
+		printk("unable to read i-node block\n");
+		return NULL;
+	}
+	p = (void *)(*bh)->b_data;
+	return p + ino % MINIX2_INODES_PER_BLOCK;
+}
+
+/* Clear the link count and mode of a deleted inode on disk. */
+
+static void minix_clear_inode(struct inode *inode)
+{
+	struct buffer_head *bh;
+	if (INODE_VERSION(inode) == MINIX_V1) {
+		struct minix_inode *raw_inode;
+		raw_inode = minix_V1_raw_inode(inode->i_sb, inode->i_ino, &bh);
+		if (raw_inode) {
+			raw_inode->i_nlinks = 0;
+			raw_inode->i_mode = 0;
+		}
+	} else {
+		struct minix2_inode *raw_inode;
+		raw_inode = minix_V2_raw_inode(inode->i_sb, inode->i_ino, &bh);
+		if (raw_inode) {
+			raw_inode->i_nlinks = 0;
+			raw_inode->i_mode = 0;
+		}
+	}
+	if (bh) {
+		mark_buffer_dirty(bh);
+		brelse (bh);
+	}
+}
+
+void minix_free_inode(struct inode * inode)
+{
+	struct buffer_head * bh;
+	unsigned long ino;
+
+	if (inode->i_ino < 1 || inode->i_ino > inode->i_sb->u.minix_sb.s_ninodes) {
+		printk("free_inode: inode 0 or nonexistent inode\n");
+		return;
+	}
+	ino = inode->i_ino;
+	if ((ino >> 13) >= inode->i_sb->u.minix_sb.s_imap_blocks) {
+		printk("free_inode: nonexistent imap in superblock\n");
+		return;
+	}
+
+	bh = inode->i_sb->u.minix_sb.s_imap[ino >> 13];
+	minix_clear_inode(inode);
+	clear_inode(inode);
+	if (!minix_test_and_clear_bit(ino & 8191, bh->b_data))
+		printk("free_inode: bit %lu already cleared.\n",ino);
+	mark_buffer_dirty(bh);
+}
+
+struct inode * minix_new_inode(const struct inode * dir, int * error)
+{
+	struct super_block * sb;
+	struct inode * inode;
+	struct buffer_head * bh;
+	int i,j;
+
+	sb = dir->i_sb;
+	inode = new_inode(sb);
+	if (!inode) {
+		*error = -ENOMEM;
+		return NULL;
+	}
+	j = 8192;
+	bh = NULL;
+	*error = -ENOSPC;
+	lock_super(sb);
+	for (i = 0; i < sb->u.minix_sb.s_imap_blocks; i++) {
+		bh = inode->i_sb->u.minix_sb.s_imap[i];
+		if ((j = minix_find_first_zero_bit(bh->b_data, 8192)) < 8192)
+			break;
+	}
+	if (!bh || j >= 8192) {
+		iput(inode);
+		unlock_super(sb);
+		return NULL;
+	}
+	if (minix_test_and_set_bit(j,bh->b_data)) {	/* shouldn't happen */
+		printk("new_inode: bit already set");
+		iput(inode);
+		unlock_super(sb);
+		return NULL;
+	}
+	mark_buffer_dirty(bh);
+	j += i*8192;
+	if (!j || j > inode->i_sb->u.minix_sb.s_ninodes) {
+		iput(inode);
+		unlock_super(sb);
+		return NULL;
+	}
+	inode->i_uid = current->fsuid;
+	inode->i_gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid;
+	inode->i_ino = j;
+	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+	inode->i_blocks = inode->i_blksize = 0;
+	insert_inode_hash(inode);
+	mark_inode_dirty(inode);
+
+	unlock_super(sb);
+	*error = 0;
+	return inode;
+}
+
+unsigned long minix_count_free_inodes(struct super_block *sb)
+{
+	return count_free(sb->u.minix_sb.s_imap, sb->u.minix_sb.s_imap_blocks,
+		sb->u.minix_sb.s_ninodes + 1);
+}
diff --git a/fs/minix/dir.c b/fs/minix/dir.c
new file mode 100644
index 00000000000000..c363a6d009250c
--- /dev/null
+++ b/fs/minix/dir.c
@@ -0,0 +1,378 @@
+/*
+ *  linux/fs/minix/dir.c
+ *
+ *  Copyright (C) 1991, 1992 Linus Torvalds
+ *
+ *  minix directory handling functions
+ */
+
+#include <linux/fs.h>
+#include <linux/minix_fs.h>
+#include <linux/pagemap.h>
+
+typedef struct minix_dir_entry minix_dirent;
+
+static int minix_readdir(struct file *, void *, filldir_t);
+
+struct file_operations minix_dir_operations = {
+	read:		generic_read_dir,
+	readdir:	minix_readdir,
+	fsync:		minix_sync_file,
+};
+
+static inline void dir_put_page(struct page *page)
+{
+	kunmap(page);
+	page_cache_release(page);
+}
+
+static inline unsigned long dir_pages(struct inode *inode)
+{
+	return (inode->i_size+PAGE_CACHE_SIZE-1)>>PAGE_CACHE_SHIFT;
+}
+
+static int dir_commit_chunk(struct page *page, unsigned from, unsigned to)
+{
+	struct inode *dir = (struct inode *)page->mapping->host;
+	int err = 0;
+	page->mapping->a_ops->commit_write(NULL, page, from, to);
+	if (IS_SYNC(dir)) {
+		int err2;
+		err = writeout_one_page(page);
+		err2 = waitfor_one_page(page);
+		if (err == 0)
+			err = err2;
+	}
+	return err;
+}
+
+static struct page * dir_get_page(struct inode *dir, unsigned long n)
+{
+	struct address_space *mapping = dir->i_mapping;
+	struct page *page = read_cache_page(mapping, n,
+				(filler_t*)mapping->a_ops->readpage, NULL);
+	if (!IS_ERR(page)) {
+		wait_on_page(page);
+		kmap(page);
+		if (!Page_Uptodate(page))
+			goto fail;
+	}
+	return page;
+
+fail:
+	dir_put_page(page);
+	return ERR_PTR(-EIO);
+}
+
+static inline void *minix_next_entry(void *de, struct minix_sb_info *sbi)
+{
+	return (void*)((char*)de + sbi->s_dirsize);
+}
+
+static int minix_readdir(struct file * filp, void * dirent, filldir_t filldir)
+{
+	unsigned long pos = filp->f_pos;
+	struct inode *inode = filp->f_dentry->d_inode;
+	struct super_block *sb = inode->i_sb;
+	unsigned offset = pos & ~PAGE_CACHE_MASK;
+	unsigned long n = pos >> PAGE_CACHE_SHIFT;
+	unsigned long npages = dir_pages(inode);
+	struct minix_sb_info *sbi = &sb->u.minix_sb;
+	unsigned chunk_size = sbi->s_dirsize;
+
+	pos = (pos + chunk_size-1) & ~(chunk_size-1);
+	if (pos >= inode->i_size)
+		goto done;
+
+	for ( ; n < npages; n++, offset = 0) {
+		char *p, *kaddr, *limit;
+		struct page *page = dir_get_page(inode, n);
+
+		if (IS_ERR(page))
+			continue;
+		kaddr = (char *)page_address(page);
+		p = kaddr+offset;
+		limit = kaddr + PAGE_CACHE_SIZE - chunk_size;
+		for ( ; p <= limit ; p = minix_next_entry(p, sbi)) {
+			minix_dirent *de = (minix_dirent *)p;
+			if (de->inode) {
+				int over;
+				unsigned l = strnlen(de->name,sbi->s_namelen);
+
+				offset = p - kaddr;
+				over = filldir(dirent, de->name, l,
+						(n<<PAGE_CACHE_SHIFT) | offset,
+						de->inode, DT_UNKNOWN);
+				if (over) {
+					dir_put_page(page);
+					goto done;
+				}
+			}
+		}
+		dir_put_page(page);
+	}
+
+done:
+	filp->f_pos = (n << PAGE_CACHE_SHIFT) | offset;
+	UPDATE_ATIME(inode);
+	return 0;
+}
+
+static inline int namecompare(int len, int maxlen,
+	const char * name, const char * buffer)
+{
+	if (len < maxlen && buffer[len])
+		return 0;
+	return !memcmp(name, buffer, len);
+}
+
+/*
+ *	minix_find_entry()
+ *
+ * finds an entry in the specified directory with the wanted name. It
+ * returns the cache buffer in which the entry was found, and the entry
+ * itself (as a parameter - res_dir). It does NOT read the inode of the
+ * entry - you'll have to do that yourself if you want to.
+ */
+minix_dirent *minix_find_entry(struct dentry *dentry, struct page **res_page)
+{
+	const char * name = dentry->d_name.name;
+	int namelen = dentry->d_name.len;
+	struct inode * dir = dentry->d_parent->d_inode;
+	struct super_block * sb = dir->i_sb;
+	struct minix_sb_info * sbi = &sb->u.minix_sb;
+	unsigned long n;
+	unsigned long npages = dir_pages(dir);
+	struct page *page = NULL;
+	struct minix_dir_entry *de;
+
+	*res_page = NULL;
+
+	for (n = 0; n < npages; n++) {
+		char *kaddr;
+		page = dir_get_page(dir, n);
+		if (IS_ERR(page))
+			continue;
+
+		kaddr = (char*)page_address(page);
+		de = (struct minix_dir_entry *) kaddr;
+		kaddr += PAGE_CACHE_SIZE - sbi->s_dirsize;
+		for ( ; (char *) de <= kaddr ; de = minix_next_entry(de,sbi)) {
+			if (!de->inode)
+				continue;
+			if (namecompare(namelen,sbi->s_namelen,name,de->name))
+				goto found;
+		}
+		dir_put_page(page);
+	}
+	return NULL;
+
+found:
+	*res_page = page;
+	return de;
+}
+
+int minix_add_link(struct dentry *dentry, struct inode *inode)
+{
+	struct inode *dir = dentry->d_parent->d_inode;
+	const char * name = dentry->d_name.name;
+	int namelen = dentry->d_name.len;
+	struct super_block * sb = dir->i_sb;
+	struct minix_sb_info * sbi = &sb->u.minix_sb;
+	struct page *page = NULL;
+	struct minix_dir_entry * de;
+	unsigned long npages = dir_pages(dir);
+	unsigned long n;
+	char *kaddr;
+	unsigned from, to;
+	int err;
+
+	/* We take care of directory expansion in the same loop */
+	for (n = 0; n <= npages; n++) {
+		page = dir_get_page(dir, n);
+		err = PTR_ERR(page);
+		if (IS_ERR(page))
+			goto out;
+		kaddr = (char*)page_address(page);
+		de = (minix_dirent *)kaddr;
+		kaddr += PAGE_CACHE_SIZE - sbi->s_dirsize;
+		while ((char *)de <= kaddr) {
+			if (!de->inode)
+				goto got_it;
+			err = -EEXIST;
+			if (namecompare(namelen,sbi->s_namelen,name,de->name))
+				goto out_page;
+			de = minix_next_entry(de, sbi);
+		}
+		dir_put_page(page);
+	}
+	BUG();
+	return -EINVAL;
+
+got_it:
+	from = (char*)de - (char*)page_address(page);
+	to = from + sbi->s_dirsize;
+	lock_page(page);
+	err = page->mapping->a_ops->prepare_write(NULL, page, from, to);
+	if (err)
+		goto out_unlock;
+	memcpy (de->name, name, namelen);
+	memset (de->name + namelen, 0, sbi->s_dirsize - namelen - 2);
+	de->inode = inode->i_ino;
+	err = dir_commit_chunk(page, from, to);
+	dir->i_mtime = dir->i_ctime = CURRENT_TIME;
+	mark_inode_dirty(dir);
+out_unlock:
+	UnlockPage(page);
+out_page:
+	dir_put_page(page);
+out:
+	return err;
+}
+
+int minix_delete_entry(struct minix_dir_entry *de, struct page *page)
+{
+	struct address_space *mapping = page->mapping;
+	struct inode *inode = (struct inode*)mapping->host;
+	char *kaddr = (char*)page_address(page);
+	unsigned from = (char*)de - kaddr;
+	unsigned to = from + inode->i_sb->u.minix_sb.s_dirsize;
+	int err;
+
+	lock_page(page);
+	err = mapping->a_ops->prepare_write(NULL, page, from, to);
+	if (err == 0) {
+		de->inode = 0;
+		err = dir_commit_chunk(page, from, to);
+	}
+	UnlockPage(page);
+	dir_put_page(page);
+	inode->i_ctime = inode->i_mtime = CURRENT_TIME;
+	mark_inode_dirty(inode);
+	return err;
+}
+
+int minix_make_empty(struct inode *inode, struct inode *dir)
+{
+	struct address_space *mapping = inode->i_mapping;
+	struct page *page = grab_cache_page(mapping, 0);
+	struct minix_sb_info * sbi = &inode->i_sb->u.minix_sb;
+	struct minix_dir_entry * de;
+	char *base;
+	int err;
+
+	if (!page)
+		return -ENOMEM;
+	err = mapping->a_ops->prepare_write(NULL, page, 0, 2 * sbi->s_dirsize);
+	if (err)
+		goto fail;
+
+	base = (char*)page_address(page);
+	memset(base, 0, PAGE_CACHE_SIZE);
+
+	de = (struct minix_dir_entry *) base;
+	de->inode = inode->i_ino;
+	strcpy(de->name,".");
+	de = minix_next_entry(de, sbi);
+	de->inode = dir->i_ino;
+	strcpy(de->name,"..");
+
+	err = dir_commit_chunk(page, 0, 2 * sbi->s_dirsize);
+fail:
+	UnlockPage(page);
+	page_cache_release(page);
+	return err;
+}
+
+/*
+ * routine to check that the specified directory is empty (for rmdir)
+ */
+int minix_empty_dir(struct inode * inode)
+{
+	struct page *page = NULL;
+	unsigned long i, npages = dir_pages(inode);
+	struct minix_sb_info *sbi = &inode->i_sb->u.minix_sb;
+
+	for (i = 0; i < npages; i++) {
+		char *kaddr;
+		minix_dirent * de;
+		page = dir_get_page(inode, i);
+
+		if (IS_ERR(page))
+			continue;
+
+		kaddr = (char *)page_address(page);
+		de = (minix_dirent *)kaddr;
+		kaddr += PAGE_CACHE_SIZE - sbi->s_dirsize;
+
+		while ((char *)de <= kaddr) {
+			if (de->inode != 0) {
+				/* check for . and .. */
+				if (de->name[0] != '.')
+					goto not_empty;
+				if (!de->name[1]) {
+					if (de->inode != inode->i_ino)
+						goto not_empty;
+				} else if (de->name[1] != '.')
+					goto not_empty;
+				else if (de->name[2])
+					goto not_empty;
+			}
+			de = minix_next_entry(de, sbi);
+		}
+		dir_put_page(page);
+	}
+	return 1;
+
+not_empty:
+	dir_put_page(page);
+	return 0;
+}
+
+/* Releases the page */
+void minix_set_link(struct minix_dir_entry *de, struct page *page,
+	struct inode *inode)
+{
+	struct inode *dir = (struct inode*)page->mapping->host;
+	struct minix_sb_info *sbi = &dir->i_sb->u.minix_sb;
+	unsigned from = (char *)de-(char*)page_address(page);
+	unsigned to = from + sbi->s_dirsize;
+	int err;
+
+	lock_page(page);
+	err = page->mapping->a_ops->prepare_write(NULL, page, from, to);
+	if (err == 0) {
+		de->inode = inode->i_ino;
+		err = dir_commit_chunk(page, from, to);
+	}
+	UnlockPage(page);
+	dir_put_page(page);
+	dir->i_mtime = dir->i_ctime = CURRENT_TIME;
+	mark_inode_dirty(dir);
+}
+
+struct minix_dir_entry * minix_dotdot (struct inode *dir, struct page **p)
+{
+	struct page *page = dir_get_page(dir, 0);
+	struct minix_sb_info *sbi = &dir->i_sb->u.minix_sb;
+	struct minix_dir_entry *de = NULL;
+
+	if (!IS_ERR(page)) {
+		de = minix_next_entry(page_address(page), sbi);
+		*p = page;
+	}
+	return de;
+}
+
+ino_t minix_inode_by_name(struct dentry *dentry)
+{
+	struct page *page;
+	struct minix_dir_entry *de = minix_find_entry(dentry, &page);
+	ino_t res = 0;
+
+	if (de) {
+		res = de->inode;
+		dir_put_page(page);
+	}
+	return res;
+}
diff --git a/fs/minix/file.c b/fs/minix/file.c
new file mode 100644
index 00000000000000..ab8682902b2678
--- /dev/null
+++ b/fs/minix/file.c
@@ -0,0 +1,44 @@
+/*
+ *  linux/fs/minix/file.c
+ *
+ *  Copyright (C) 1991, 1992 Linus Torvalds
+ *
+ *  minix regular file handling primitives
+ */
+
+#include <linux/fs.h>
+#include <linux/minix_fs.h>
+
+/*
+ * We have mostly NULLs here: the current defaults are OK for
+ * the minix filesystem.
+ */
+int minix_sync_file(struct file *, struct dentry *, int);
+
+struct file_operations minix_file_operations = {
+	llseek:		generic_file_llseek,
+	read:		generic_file_read,
+	write:		generic_file_write,
+	mmap:		generic_file_mmap,
+	fsync:		minix_sync_file,
+};
+
+struct inode_operations minix_file_inode_operations = {
+	truncate:	minix_truncate,
+};
+
+int minix_sync_file(struct file * file, struct dentry *dentry, int datasync)
+{
+	struct inode *inode = dentry->d_inode;
+	int err;
+
+	err = fsync_inode_buffers(inode);
+	err |= fsync_inode_data_buffers(inode);
+	if (!(inode->i_state & I_DIRTY))
+		return err;
+	if (datasync && !(inode->i_state & I_DIRTY_DATASYNC))
+		return err;
+	
+	err |= minix_sync_inode(inode);
+	return err ? -EIO : 0;
+}
diff --git a/fs/minix/inode.c b/fs/minix/inode.c
new file mode 100644
index 00000000000000..4fcf2fa8a64200
--- /dev/null
+++ b/fs/minix/inode.c
@@ -0,0 +1,539 @@
+/*
+ *  linux/fs/minix/inode.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  Copyright (C) 1996  Gertjan van Wingerde    (gertjan@cs.vu.nl)
+ *	Minix V2 fs support.
+ *
+ *  Modified for 680x0 by Andreas Schwab
+ */
+
+#include <linux/module.h>
+
+#include <linux/fs.h>
+#include <linux/minix_fs.h>
+#include <linux/slab.h>
+#include <linux/locks.h>
+#include <linux/init.h>
+#include <linux/smp_lock.h>
+#include <linux/highuid.h>
+#include <linux/blkdev.h>
+
+static void minix_read_inode(struct inode * inode);
+static void minix_write_inode(struct inode * inode, int wait);
+static int minix_statfs(struct super_block *sb, struct statfs *buf);
+static int minix_remount (struct super_block * sb, int * flags, char * data);
+
+static void minix_delete_inode(struct inode *inode)
+{
+	lock_kernel();
+
+	inode->i_size = 0;
+	minix_truncate(inode);
+	minix_free_inode(inode);
+
+	unlock_kernel();
+}
+
+static void minix_commit_super(struct super_block * sb)
+{
+	mark_buffer_dirty(sb->u.minix_sb.s_sbh);
+	sb->s_dirt = 0;
+}
+
+static void minix_write_super(struct super_block * sb)
+{
+	struct minix_super_block * ms;
+
+	if (!(sb->s_flags & MS_RDONLY)) {
+		ms = sb->u.minix_sb.s_ms;
+
+		if (ms->s_state & MINIX_VALID_FS)
+			ms->s_state &= ~MINIX_VALID_FS;
+		minix_commit_super(sb);
+	}
+	sb->s_dirt = 0;
+}
+
+
+static void minix_put_super(struct super_block *sb)
+{
+	int i;
+
+	if (!(sb->s_flags & MS_RDONLY)) {
+		sb->u.minix_sb.s_ms->s_state = sb->u.minix_sb.s_mount_state;
+		mark_buffer_dirty(sb->u.minix_sb.s_sbh);
+	}
+	for (i = 0; i < sb->u.minix_sb.s_imap_blocks; i++)
+		brelse(sb->u.minix_sb.s_imap[i]);
+	for (i = 0; i < sb->u.minix_sb.s_zmap_blocks; i++)
+		brelse(sb->u.minix_sb.s_zmap[i]);
+	brelse (sb->u.minix_sb.s_sbh);
+	kfree(sb->u.minix_sb.s_imap);
+
+	return;
+}
+
+static struct super_operations minix_sops = {
+	read_inode:	minix_read_inode,
+	write_inode:	minix_write_inode,
+	delete_inode:	minix_delete_inode,
+	put_super:	minix_put_super,
+	write_super:	minix_write_super,
+	statfs:		minix_statfs,
+	remount_fs:	minix_remount,
+};
+
+static int minix_remount (struct super_block * sb, int * flags, char * data)
+{
+	struct minix_super_block * ms;
+
+	ms = sb->u.minix_sb.s_ms;
+	if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
+		return 0;
+	if (*flags & MS_RDONLY) {
+		if (ms->s_state & MINIX_VALID_FS ||
+		    !(sb->u.minix_sb.s_mount_state & MINIX_VALID_FS))
+			return 0;
+		/* Mounting a rw partition read-only. */
+		ms->s_state = sb->u.minix_sb.s_mount_state;
+		mark_buffer_dirty(sb->u.minix_sb.s_sbh);
+		sb->s_dirt = 1;
+		minix_commit_super(sb);
+	}
+	else {
+	  	/* Mount a partition which is read-only, read-write. */
+		sb->u.minix_sb.s_mount_state = ms->s_state;
+		ms->s_state &= ~MINIX_VALID_FS;
+		mark_buffer_dirty(sb->u.minix_sb.s_sbh);
+		sb->s_dirt = 1;
+
+		if (!(sb->u.minix_sb.s_mount_state & MINIX_VALID_FS))
+			printk ("MINIX-fs warning: remounting unchecked fs, "
+				"running fsck is recommended.\n");
+		else if ((sb->u.minix_sb.s_mount_state & MINIX_ERROR_FS))
+			printk ("MINIX-fs warning: remounting fs with errors, "
+				"running fsck is recommended.\n");
+	}
+	return 0;
+}
+
+static struct super_block *minix_read_super(struct super_block *s, void *data,
+				     int silent)
+{
+	struct buffer_head *bh;
+	struct buffer_head **map;
+	struct minix_super_block *ms;
+	int i, block;
+	kdev_t dev = s->s_dev;
+	struct inode *root_inode;
+	unsigned int hblock;
+	struct minix_sb_info *sbi = &s->u.minix_sb;
+
+	/* N.B. These should be compile-time tests.
+	   Unfortunately that is impossible. */
+	if (32 != sizeof (struct minix_inode))
+		panic("bad V1 i-node size");
+	if (64 != sizeof(struct minix2_inode))
+		panic("bad V2 i-node size");
+
+	hblock = get_hardsect_size(dev);
+	if (hblock > BLOCK_SIZE)
+		goto out_bad_hblock;
+
+	set_blocksize(dev, BLOCK_SIZE);
+	s->s_blocksize = BLOCK_SIZE;
+	s->s_blocksize_bits = BLOCK_SIZE_BITS;
+	if (!(bh = sb_bread(s, 1)))
+		goto out_bad_sb;
+
+	ms = (struct minix_super_block *) bh->b_data;
+	sbi->s_ms = ms;
+	sbi->s_sbh = bh;
+	sbi->s_mount_state = ms->s_state;
+	sbi->s_ninodes = ms->s_ninodes;
+	sbi->s_nzones = ms->s_nzones;
+	sbi->s_imap_blocks = ms->s_imap_blocks;
+	sbi->s_zmap_blocks = ms->s_zmap_blocks;
+	sbi->s_firstdatazone = ms->s_firstdatazone;
+	sbi->s_log_zone_size = ms->s_log_zone_size;
+	sbi->s_max_size = ms->s_max_size;
+	s->s_magic = ms->s_magic;
+	if (s->s_magic == MINIX_SUPER_MAGIC) {
+		sbi->s_version = MINIX_V1;
+		sbi->s_dirsize = 16;
+		sbi->s_namelen = 14;
+		sbi->s_link_max = MINIX_LINK_MAX;
+	} else if (s->s_magic == MINIX_SUPER_MAGIC2) {
+		sbi->s_version = MINIX_V1;
+		sbi->s_dirsize = 32;
+		sbi->s_namelen = 30;
+		sbi->s_link_max = MINIX_LINK_MAX;
+	} else if (s->s_magic == MINIX2_SUPER_MAGIC) {
+		sbi->s_version = MINIX_V2;
+		sbi->s_nzones = ms->s_zones;
+		sbi->s_dirsize = 16;
+		sbi->s_namelen = 14;
+		sbi->s_link_max = MINIX2_LINK_MAX;
+	} else if (s->s_magic == MINIX2_SUPER_MAGIC2) {
+		sbi->s_version = MINIX_V2;
+		sbi->s_nzones = ms->s_zones;
+		sbi->s_dirsize = 32;
+		sbi->s_namelen = 30;
+		sbi->s_link_max = MINIX2_LINK_MAX;
+	} else
+		goto out_no_fs;
+
+	/*
+	 * Allocate the buffer map to keep the superblock small.
+	 */
+	i = (sbi->s_imap_blocks + sbi->s_zmap_blocks) * sizeof(bh);
+	map = kmalloc(i, GFP_KERNEL);
+	if (!map)
+		goto out_no_map;
+	memset(map, 0, i);
+	sbi->s_imap = &map[0];
+	sbi->s_zmap = &map[sbi->s_imap_blocks];
+
+	block=2;
+	for (i=0 ; i < sbi->s_imap_blocks ; i++) {
+		if (!(sbi->s_imap[i]=sb_bread(s, block)))
+			goto out_no_bitmap;
+		block++;
+	}
+	for (i=0 ; i < sbi->s_zmap_blocks ; i++) {
+		if (!(sbi->s_zmap[i]=sb_bread(s, block)))
+			goto out_no_bitmap;
+		block++;
+	}
+
+	minix_set_bit(0,sbi->s_imap[0]->b_data);
+	minix_set_bit(0,sbi->s_zmap[0]->b_data);
+
+	/* set up enough so that it can read an inode */
+	s->s_op = &minix_sops;
+	root_inode = iget(s, MINIX_ROOT_INO);
+	if (!root_inode || is_bad_inode(root_inode))
+		goto out_no_root;
+
+	s->s_root = d_alloc_root(root_inode);
+	if (!s->s_root)
+		goto out_iput;
+
+	if (!NO_TRUNCATE)
+		s->s_root->d_op = &minix_dentry_operations;
+
+	if (!(s->s_flags & MS_RDONLY)) {
+		ms->s_state &= ~MINIX_VALID_FS;
+		mark_buffer_dirty(bh);
+		s->s_dirt = 1;
+	}
+	if (!(sbi->s_mount_state & MINIX_VALID_FS))
+		printk ("MINIX-fs: mounting unchecked file system, "
+			"running fsck is recommended.\n");
+ 	else if (sbi->s_mount_state & MINIX_ERROR_FS)
+		printk ("MINIX-fs: mounting file system with errors, "
+			"running fsck is recommended.\n");
+	return s;
+
+out_iput:
+	iput(root_inode);
+	goto out_freemap;
+
+out_no_root:
+	if (!silent)
+		printk("MINIX-fs: get root inode failed\n");
+	goto out_freemap;
+
+out_no_bitmap:
+	printk("MINIX-fs: bad superblock or unable to read bitmaps\n");
+    out_freemap:
+	for (i = 0; i < sbi->s_imap_blocks; i++)
+		brelse(sbi->s_imap[i]);
+	for (i = 0; i < sbi->s_zmap_blocks; i++)
+		brelse(sbi->s_zmap[i]);
+	kfree(sbi->s_imap);
+	goto out_release;
+
+out_no_map:
+	if (!silent)
+		printk ("MINIX-fs: can't allocate map\n");
+	goto out_release;
+
+out_no_fs:
+	if (!silent)
+		printk("VFS: Can't find a Minix or Minix V2 filesystem on device "
+		       "%s.\n", kdevname(dev));
+    out_release:
+	brelse(bh);
+	goto out;
+
+out_bad_hblock:
+	printk("MINIX-fs: blocksize too small for device.\n");
+	goto out;
+
+out_bad_sb:
+	printk("MINIX-fs: unable to read superblock\n");
+ out:
+	return NULL;
+}
+
+static int minix_statfs(struct super_block *sb, struct statfs *buf)
+{
+	buf->f_type = sb->s_magic;
+	buf->f_bsize = sb->s_blocksize;
+	buf->f_blocks = (sb->u.minix_sb.s_nzones - sb->u.minix_sb.s_firstdatazone) << sb->u.minix_sb.s_log_zone_size;
+	buf->f_bfree = minix_count_free_blocks(sb);
+	buf->f_bavail = buf->f_bfree;
+	buf->f_files = sb->u.minix_sb.s_ninodes;
+	buf->f_ffree = minix_count_free_inodes(sb);
+	buf->f_namelen = sb->u.minix_sb.s_namelen;
+	return 0;
+}
+
+static int minix_get_block(struct inode *inode, long block,
+		    struct buffer_head *bh_result, int create)
+{
+	if (INODE_VERSION(inode) == MINIX_V1)
+		return V1_minix_get_block(inode, block, bh_result, create);
+	else
+		return V2_minix_get_block(inode, block, bh_result, create);
+}
+
+static int minix_writepage(struct page *page)
+{
+	return block_write_full_page(page,minix_get_block);
+}
+static int minix_readpage(struct file *file, struct page *page)
+{
+	return block_read_full_page(page,minix_get_block);
+}
+static int minix_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)
+{
+	return block_prepare_write(page,from,to,minix_get_block);
+}
+static int minix_bmap(struct address_space *mapping, long block)
+{
+	return generic_block_bmap(mapping,block,minix_get_block);
+}
+static struct address_space_operations minix_aops = {
+	readpage: minix_readpage,
+	writepage: minix_writepage,
+	sync_page: block_sync_page,
+	prepare_write: minix_prepare_write,
+	commit_write: generic_commit_write,
+	bmap: minix_bmap
+};
+
+void minix_set_inode(struct inode *inode, dev_t rdev)
+{
+	if (S_ISREG(inode->i_mode)) {
+		inode->i_op = &minix_file_inode_operations;
+		inode->i_fop = &minix_file_operations;
+		inode->i_mapping->a_ops = &minix_aops;
+	} else if (S_ISDIR(inode->i_mode)) {
+		inode->i_op = &minix_dir_inode_operations;
+		inode->i_fop = &minix_dir_operations;
+		inode->i_mapping->a_ops = &minix_aops;
+	} else if (S_ISLNK(inode->i_mode)) {
+		inode->i_op = &page_symlink_inode_operations;
+		inode->i_mapping->a_ops = &minix_aops;
+	} else
+		init_special_inode(inode, inode->i_mode, rdev);
+}
+
+/*
+ * The minix V1 function to read an inode.
+ */
+static void V1_minix_read_inode(struct inode * inode)
+{
+	struct buffer_head * bh;
+	struct minix_inode * raw_inode;
+	int i;
+
+	raw_inode = minix_V1_raw_inode(inode->i_sb, inode->i_ino, &bh);
+	if (!raw_inode) {
+		make_bad_inode(inode);
+		return;
+	}
+	inode->i_mode = raw_inode->i_mode;
+	inode->i_uid = (uid_t)raw_inode->i_uid;
+	inode->i_gid = (gid_t)raw_inode->i_gid;
+	inode->i_nlink = raw_inode->i_nlinks;
+	inode->i_size = raw_inode->i_size;
+	inode->i_mtime = inode->i_atime = inode->i_ctime = raw_inode->i_time;
+	inode->i_blocks = inode->i_blksize = 0;
+	for (i = 0; i < 9; i++)
+		inode->u.minix_i.u.i1_data[i] = raw_inode->i_zone[i];
+	minix_set_inode(inode, raw_inode->i_zone[0]);
+	brelse(bh);
+}
+
+/*
+ * The minix V2 function to read an inode.
+ */
+static void V2_minix_read_inode(struct inode * inode)
+{
+	struct buffer_head * bh;
+	struct minix2_inode * raw_inode;
+	int i;
+
+	raw_inode = minix_V2_raw_inode(inode->i_sb, inode->i_ino, &bh);
+	if (!raw_inode) {
+		make_bad_inode(inode);
+		return;
+	}
+	inode->i_mode = raw_inode->i_mode;
+	inode->i_uid = (uid_t)raw_inode->i_uid;
+	inode->i_gid = (gid_t)raw_inode->i_gid;
+	inode->i_nlink = raw_inode->i_nlinks;
+	inode->i_size = raw_inode->i_size;
+	inode->i_mtime = raw_inode->i_mtime;
+	inode->i_atime = raw_inode->i_atime;
+	inode->i_ctime = raw_inode->i_ctime;
+	inode->i_blocks = inode->i_blksize = 0;
+	for (i = 0; i < 10; i++)
+		inode->u.minix_i.u.i2_data[i] = raw_inode->i_zone[i];
+	minix_set_inode(inode, raw_inode->i_zone[0]);
+	brelse(bh);
+}
+
+/*
+ * The global function to read an inode.
+ */
+static void minix_read_inode(struct inode * inode)
+{
+	if (INODE_VERSION(inode) == MINIX_V1)
+		V1_minix_read_inode(inode);
+	else
+		V2_minix_read_inode(inode);
+}
+
+/*
+ * The minix V1 function to synchronize an inode.
+ */
+static struct buffer_head * V1_minix_update_inode(struct inode * inode)
+{
+	struct buffer_head * bh;
+	struct minix_inode * raw_inode;
+	int i;
+
+	raw_inode = minix_V1_raw_inode(inode->i_sb, inode->i_ino, &bh);
+	if (!raw_inode)
+		return 0;
+	raw_inode->i_mode = inode->i_mode;
+	raw_inode->i_uid = fs_high2lowuid(inode->i_uid);
+	raw_inode->i_gid = fs_high2lowgid(inode->i_gid);
+	raw_inode->i_nlinks = inode->i_nlink;
+	raw_inode->i_size = inode->i_size;
+	raw_inode->i_time = inode->i_mtime;
+	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
+		raw_inode->i_zone[0] = kdev_t_to_nr(inode->i_rdev);
+	else for (i = 0; i < 9; i++)
+		raw_inode->i_zone[i] = inode->u.minix_i.u.i1_data[i];
+	mark_buffer_dirty(bh);
+	return bh;
+}
+
+/*
+ * The minix V2 function to synchronize an inode.
+ */
+static struct buffer_head * V2_minix_update_inode(struct inode * inode)
+{
+	struct buffer_head * bh;
+	struct minix2_inode * raw_inode;
+	int i;
+
+	raw_inode = minix_V2_raw_inode(inode->i_sb, inode->i_ino, &bh);
+	if (!raw_inode)
+		return 0;
+	raw_inode->i_mode = inode->i_mode;
+	raw_inode->i_uid = fs_high2lowuid(inode->i_uid);
+	raw_inode->i_gid = fs_high2lowgid(inode->i_gid);
+	raw_inode->i_nlinks = inode->i_nlink;
+	raw_inode->i_size = inode->i_size;
+	raw_inode->i_mtime = inode->i_mtime;
+	raw_inode->i_atime = inode->i_atime;
+	raw_inode->i_ctime = inode->i_ctime;
+	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
+		raw_inode->i_zone[0] = kdev_t_to_nr(inode->i_rdev);
+	else for (i = 0; i < 10; i++)
+		raw_inode->i_zone[i] = inode->u.minix_i.u.i2_data[i];
+	mark_buffer_dirty(bh);
+	return bh;
+}
+
+static struct buffer_head *minix_update_inode(struct inode *inode)
+{
+	if (INODE_VERSION(inode) == MINIX_V1)
+		return V1_minix_update_inode(inode);
+	else
+		return V2_minix_update_inode(inode);
+}
+
+static void minix_write_inode(struct inode * inode, int wait)
+{
+	struct buffer_head *bh;
+
+	lock_kernel();
+	bh = minix_update_inode(inode);
+	unlock_kernel();
+	brelse(bh);
+}
+
+int minix_sync_inode(struct inode * inode)
+{
+	int err = 0;
+	struct buffer_head *bh;
+
+	bh = minix_update_inode(inode);
+	if (bh && buffer_dirty(bh))
+	{
+		ll_rw_block(WRITE, 1, &bh);
+		wait_on_buffer(bh);
+		if (buffer_req(bh) && !buffer_uptodate(bh))
+		{
+			printk ("IO error syncing minix inode ["
+				"%s:%08lx]\n",
+				kdevname(inode->i_dev), inode->i_ino);
+			err = -1;
+		}
+	}
+	else if (!bh)
+		err = -1;
+	brelse (bh);
+	return err;
+}
+
+/*
+ * The function that is called for file truncation.
+ */
+void minix_truncate(struct inode * inode)
+{
+	if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)))
+		return;
+	if (INODE_VERSION(inode) == MINIX_V1)
+		V1_minix_truncate(inode);
+	else
+		V2_minix_truncate(inode);
+}
+
+static DECLARE_FSTYPE_DEV(minix_fs_type,"minix",minix_read_super);
+
+static int __init init_minix_fs(void)
+{
+        return register_filesystem(&minix_fs_type);
+}
+
+static void __exit exit_minix_fs(void)
+{
+        unregister_filesystem(&minix_fs_type);
+}
+
+EXPORT_NO_SYMBOLS;
+
+module_init(init_minix_fs)
+module_exit(exit_minix_fs)
+MODULE_LICENSE("GPL");
+
diff --git a/fs/minix/itree_common.c b/fs/minix/itree_common.c
new file mode 100644
index 00000000000000..89da206c38b901
--- /dev/null
+++ b/fs/minix/itree_common.c
@@ -0,0 +1,347 @@
+/* Generic part */
+
+typedef struct {
+	block_t	*p;
+	block_t	key;
+	struct buffer_head *bh;
+} Indirect;
+
+static inline void add_chain(Indirect *p, struct buffer_head *bh, block_t *v)
+{
+	p->key = *(p->p = v);
+	p->bh = bh;
+}
+
+static inline int verify_chain(Indirect *from, Indirect *to)
+{
+	while (from <= to && from->key == *from->p)
+		from++;
+	return (from > to);
+}
+
+static inline block_t *block_end(struct buffer_head *bh)
+{
+	return (block_t *)((char*)bh->b_data + BLOCK_SIZE);
+}
+
+static inline Indirect *get_branch(struct inode *inode,
+					int depth,
+					int *offsets,
+					Indirect chain[DEPTH],
+					int *err)
+{
+	struct super_block *sb = inode->i_sb;
+	Indirect *p = chain;
+	struct buffer_head *bh;
+
+	*err = 0;
+	/* i_data is not going away, no lock needed */
+	add_chain (chain, NULL, i_data(inode) + *offsets);
+	if (!p->key)
+		goto no_block;
+	while (--depth) {
+		bh = sb_bread(sb, block_to_cpu(p->key));
+		if (!bh)
+			goto failure;
+		/* Reader: pointers */
+		if (!verify_chain(chain, p))
+			goto changed;
+		add_chain(++p, bh, (block_t *)bh->b_data + *++offsets);
+		/* Reader: end */
+		if (!p->key)
+			goto no_block;
+	}
+	return NULL;
+
+changed:
+	*err = -EAGAIN;
+	goto no_block;
+failure:
+	*err = -EIO;
+no_block:
+	return p;
+}
+
+static int alloc_branch(struct inode *inode,
+			     int num,
+			     int *offsets,
+			     Indirect *branch)
+{
+	int n = 0;
+	int i;
+	int parent = minix_new_block(inode);
+
+	branch[0].key = cpu_to_block(parent);
+	if (parent) for (n = 1; n < num; n++) {
+		struct buffer_head *bh;
+		/* Allocate the next block */
+		int nr = minix_new_block(inode);
+		if (!nr)
+			break;
+		branch[n].key = cpu_to_block(nr);
+		bh = sb_getblk(inode->i_sb, parent);
+		lock_buffer(bh);
+		memset(bh->b_data, 0, BLOCK_SIZE);
+		branch[n].bh = bh;
+		branch[n].p = (block_t*) bh->b_data + offsets[n];
+		*branch[n].p = branch[n].key;
+		mark_buffer_uptodate(bh, 1);
+		unlock_buffer(bh);
+		mark_buffer_dirty_inode(bh, inode);
+		parent = nr;
+	}
+	if (n == num)
+		return 0;
+
+	/* Allocation failed, free what we already allocated */
+	for (i = 1; i < n; i++)
+		bforget(branch[i].bh);
+	for (i = 0; i < n; i++)
+		minix_free_block(inode, block_to_cpu(branch[i].key));
+	return -ENOSPC;
+}
+
+static inline int splice_branch(struct inode *inode,
+				     Indirect chain[DEPTH],
+				     Indirect *where,
+				     int num)
+{
+	int i;
+
+	/* Verify that place we are splicing to is still there and vacant */
+
+	/* Writer: pointers */
+	if (!verify_chain(chain, where-1) || *where->p)
+		/* Writer: end */
+		goto changed;
+
+	/* That's it */
+
+	*where->p = where->key;
+
+	/* Writer: end */
+
+	/* We are done with atomic stuff, now do the rest of housekeeping */
+
+	inode->i_ctime = CURRENT_TIME;
+
+	/* had we spliced it onto indirect block? */
+	if (where->bh)
+		mark_buffer_dirty_inode(where->bh, inode);
+
+	mark_inode_dirty(inode);
+	return 0;
+
+changed:
+	for (i = 1; i < num; i++)
+		bforget(where[i].bh);
+	for (i = 0; i < num; i++)
+		minix_free_block(inode, block_to_cpu(where[i].key));
+	return -EAGAIN;
+}
+
+static inline int get_block(struct inode * inode, long block,
+			struct buffer_head *bh_result, int create)
+{
+	int err = -EIO;
+	int offsets[DEPTH];
+	Indirect chain[DEPTH];
+	Indirect *partial;
+	int left;
+	int depth = block_to_path(inode, block, offsets);
+
+	if (depth == 0)
+		goto out;
+
+	lock_kernel();
+reread:
+	partial = get_branch(inode, depth, offsets, chain, &err);
+
+	/* Simplest case - block found, no allocation needed */
+	if (!partial) {
+got_it:
+		bh_result->b_dev = inode->i_dev;
+		bh_result->b_blocknr = block_to_cpu(chain[depth-1].key);
+		bh_result->b_state |= (1UL << BH_Mapped);
+		/* Clean up and exit */
+		partial = chain+depth-1; /* the whole chain */
+		goto cleanup;
+	}
+
+	/* Next simple case - plain lookup or failed read of indirect block */
+	if (!create || err == -EIO) {
+cleanup:
+		while (partial > chain) {
+			brelse(partial->bh);
+			partial--;
+		}
+		unlock_kernel();
+out:
+		return err;
+	}
+
+	/*
+	 * Indirect block might be removed by truncate while we were
+	 * reading it. Handling of that case (forget what we've got and
+	 * reread) is taken out of the main path.
+	 */
+	if (err == -EAGAIN)
+		goto changed;
+
+	left = (chain + depth) - partial;
+	err = alloc_branch(inode, left, offsets+(partial-chain), partial);
+	if (err)
+		goto cleanup;
+
+	if (splice_branch(inode, chain, partial, left) < 0)
+		goto changed;
+
+	bh_result->b_state |= (1UL << BH_New);
+	goto got_it;
+
+changed:
+	while (partial > chain) {
+		brelse(partial->bh);
+		partial--;
+	}
+	goto reread;
+}
+
+static inline int all_zeroes(block_t *p, block_t *q)
+{
+	while (p < q)
+		if (*p++)
+			return 0;
+	return 1;
+}
+
+static Indirect *find_shared(struct inode *inode,
+				int depth,
+				int offsets[DEPTH],
+				Indirect chain[DEPTH],
+				block_t *top)
+{
+	Indirect *partial, *p;
+	int k, err;
+
+	*top = 0;
+	for (k = depth; k > 1 && !offsets[k-1]; k--)
+		;
+	partial = get_branch(inode, k, offsets, chain, &err);
+	/* Writer: pointers */
+	if (!partial)
+		partial = chain + k-1;
+	if (!partial->key && *partial->p)
+		/* Writer: end */
+		goto no_top;
+	for (p=partial;p>chain && all_zeroes((block_t*)p->bh->b_data,p->p);p--)
+		;
+	if (p == chain + k - 1 && p > chain) {
+		p->p--;
+	} else {
+		*top = *p->p;
+		*p->p = 0;
+	}
+	/* Writer: end */
+
+	while(partial > p)
+	{
+		brelse(partial->bh);
+		partial--;
+	}
+no_top:
+	return partial;
+}
+
+static inline void free_data(struct inode *inode, block_t *p, block_t *q)
+{
+	unsigned long nr;
+
+	for ( ; p < q ; p++) {
+		nr = block_to_cpu(*p);
+		if (nr) {
+			*p = 0;
+			minix_free_block(inode, nr);
+		}
+	}
+}
+
+static void free_branches(struct inode *inode, block_t *p, block_t *q, int depth)
+{
+	struct buffer_head * bh;
+	unsigned long nr;
+
+	if (depth--) {
+		for ( ; p < q ; p++) {
+			nr = block_to_cpu(*p);
+			if (!nr)
+				continue;
+			*p = 0;
+			bh = sb_bread(inode->i_sb, nr);
+			if (!bh)
+				continue;
+			free_branches(inode, (block_t*)bh->b_data,
+				      block_end(bh), depth);
+			bforget(bh);
+			minix_free_block(inode, nr);
+			mark_inode_dirty(inode);
+		}
+	} else
+		free_data(inode, p, q);
+}
+
+static inline void truncate (struct inode * inode)
+{
+	block_t *idata = i_data(inode);
+	int offsets[DEPTH];
+	Indirect chain[DEPTH];
+	Indirect *partial;
+	block_t nr = 0;
+	int n;
+	int first_whole;
+	long iblock;
+
+	iblock = (inode->i_size + BLOCK_SIZE-1) >> 10;
+	block_truncate_page(inode->i_mapping, inode->i_size, get_block);
+
+	n = block_to_path(inode, iblock, offsets);
+	if (!n)
+		return;
+
+	if (n == 1) {
+		free_data(inode, idata+offsets[0], idata + DIRECT);
+		first_whole = 0;
+		goto do_indirects;
+	}
+
+	first_whole = offsets[0] + 1 - DIRECT;
+	partial = find_shared(inode, n, offsets, chain, &nr);
+	if (nr) {
+		if (partial == chain)
+			mark_inode_dirty(inode);
+		else
+			mark_buffer_dirty_inode(partial->bh, inode);
+		free_branches(inode, &nr, &nr+1, (chain+n-1) - partial);
+	}
+	/* Clear the ends of indirect blocks on the shared branch */
+	while (partial > chain) {
+		free_branches(inode, partial->p + 1, block_end(partial->bh),
+				(chain+n-1) - partial);
+		mark_buffer_dirty_inode(partial->bh, inode);
+		brelse (partial->bh);
+		partial--;
+	}
+do_indirects:
+	/* Kill the remaining (whole) subtrees */
+	while (first_whole < DEPTH-1) {
+		nr = idata[DIRECT+first_whole];
+		if (nr) {
+			idata[DIRECT+first_whole] = 0;
+			mark_inode_dirty(inode);
+			free_branches(inode, &nr, &nr+1, first_whole+1);
+		}
+		first_whole++;
+	}
+	inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+	mark_inode_dirty(inode);
+}
diff --git a/fs/minix/itree_v1.c b/fs/minix/itree_v1.c
new file mode 100644
index 00000000000000..990dddd0d73e25
--- /dev/null
+++ b/fs/minix/itree_v1.c
@@ -0,0 +1,58 @@
+#include <linux/fs.h>
+#include <linux/minix_fs.h>
+#include <linux/locks.h>
+#include <linux/smp_lock.h>
+
+enum {DEPTH = 3, DIRECT = 7};	/* Only double indirect */
+
+typedef u16 block_t;	/* 16 bit, host order */
+
+static inline unsigned long block_to_cpu(block_t n)
+{
+	return n;
+}
+
+static inline block_t cpu_to_block(unsigned long n)
+{
+	return n;
+}
+
+static inline block_t *i_data(struct inode *inode)
+{
+	return (block_t *)inode->u.minix_i.u.i1_data;
+}
+
+static int block_to_path(struct inode * inode, long block, int offsets[DEPTH])
+{
+	int n = 0;
+
+	if (block < 0) {
+		printk("minix_bmap: block<0");
+	} else if (block >= (inode->i_sb->u.minix_sb.s_max_size/BLOCK_SIZE)) {
+		printk("minix_bmap: block>big");
+	} else if (block < 7) {
+		offsets[n++] = block;
+	} else if ((block -= 7) < 512) {
+		offsets[n++] = 7;
+		offsets[n++] = block;
+	} else {
+		block -= 512;
+		offsets[n++] = 8;
+		offsets[n++] = block>>9;
+		offsets[n++] = block & 511;
+	}
+	return n;
+}
+
+#include "itree_common.c"
+
+int V1_minix_get_block(struct inode * inode, long block,
+			struct buffer_head *bh_result, int create)
+{
+	return get_block(inode, block, bh_result, create);
+}
+
+void V1_minix_truncate(struct inode * inode)
+{
+	truncate(inode);
+}
diff --git a/fs/minix/itree_v2.c b/fs/minix/itree_v2.c
new file mode 100644
index 00000000000000..bbff60d850fc8c
--- /dev/null
+++ b/fs/minix/itree_v2.c
@@ -0,0 +1,63 @@
+#include <linux/fs.h>
+#include <linux/minix_fs.h>
+#include <linux/locks.h>
+#include <linux/smp_lock.h>
+
+enum {DIRECT = 7, DEPTH = 4};	/* Have triple indirect */
+
+typedef u32 block_t;	/* 32 bit, host order */
+
+static inline unsigned long block_to_cpu(block_t n)
+{
+	return n;
+}
+
+static inline block_t cpu_to_block(unsigned long n)
+{
+	return n;
+}
+
+static inline block_t *i_data(struct inode *inode)
+{
+	return (block_t *)inode->u.minix_i.u.i2_data;
+}
+
+static int block_to_path(struct inode * inode, long block, int offsets[DEPTH])
+{
+	int n = 0;
+
+	if (block < 0) {
+		printk("minix_bmap: block<0");
+	} else if (block >= (inode->i_sb->u.minix_sb.s_max_size/BLOCK_SIZE)) {
+		printk("minix_bmap: block>big");
+	} else if (block < 7) {
+		offsets[n++] = block;
+	} else if ((block -= 7) < 256) {
+		offsets[n++] = 7;
+		offsets[n++] = block;
+	} else if ((block -= 256) < 256*256) {
+		offsets[n++] = 8;
+		offsets[n++] = block>>8;
+		offsets[n++] = block & 255;
+	} else {
+		block -= 256*256;
+		offsets[n++] = 9;
+		offsets[n++] = block>>16;
+		offsets[n++] = (block>>8) & 255;
+		offsets[n++] = block & 255;
+	}
+	return n;
+}
+
+#include "itree_common.c"
+
+int V2_minix_get_block(struct inode * inode, long block,
+			struct buffer_head *bh_result, int create)
+{
+	return get_block(inode, block, bh_result, create);
+}
+
+void V2_minix_truncate(struct inode * inode)
+{
+	truncate(inode);
+}
diff --git a/fs/minix/namei.c b/fs/minix/namei.c
new file mode 100644
index 00000000000000..c0e9ea190812e5
--- /dev/null
+++ b/fs/minix/namei.c
@@ -0,0 +1,315 @@
+/*
+ *  linux/fs/minix/namei.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ */
+
+#include <linux/fs.h>
+#include <linux/minix_fs.h>
+#include <linux/pagemap.h>
+
+static inline void inc_count(struct inode *inode)
+{
+	inode->i_nlink++;
+	mark_inode_dirty(inode);
+}
+
+static inline void dec_count(struct inode *inode)
+{
+	inode->i_nlink--;
+	mark_inode_dirty(inode);
+}
+
+static int add_nondir(struct dentry *dentry, struct inode *inode)
+{
+	int err = minix_add_link(dentry, inode);
+	if (!err) {
+		d_instantiate(dentry, inode);
+		return 0;
+	}
+	dec_count(inode);
+	iput(inode);
+	return err;
+}
+
+static int minix_hash(struct dentry *dentry, struct qstr *qstr)
+{
+	unsigned long hash;
+	int i;
+	const unsigned char *name;
+
+	i = dentry->d_inode->i_sb->u.minix_sb.s_namelen;
+	if (i >= qstr->len)
+		return 0;
+	/* Truncate the name in place, avoids having to define a compare
+	   function. */
+	qstr->len = i;
+	name = qstr->name;
+	hash = init_name_hash();
+	while (i--)
+		hash = partial_name_hash(*name++, hash);
+	qstr->hash = end_name_hash(hash);
+	return 0;
+}
+
+struct dentry_operations minix_dentry_operations = {
+	d_hash:		minix_hash,
+};
+
+static struct dentry *minix_lookup(struct inode * dir, struct dentry *dentry)
+{
+	struct inode * inode = NULL;
+	ino_t ino;
+
+	dentry->d_op = dir->i_sb->s_root->d_op;
+
+	if (dentry->d_name.len > dir->i_sb->u.minix_sb.s_namelen)
+		return ERR_PTR(-ENAMETOOLONG);
+
+	ino = minix_inode_by_name(dentry);
+	if (ino) {
+		inode = iget(dir->i_sb, ino);
+ 
+		if (!inode)
+			return ERR_PTR(-EACCES);
+	}
+	d_add(dentry, inode);
+	return NULL;
+}
+
+static int minix_mknod(struct inode * dir, struct dentry *dentry, int mode, int rdev)
+{
+	int error;
+	struct inode * inode = minix_new_inode(dir, &error);
+
+	if (inode) {
+		inode->i_mode = mode;
+		minix_set_inode(inode, rdev);
+		mark_inode_dirty(inode);
+		error = add_nondir(dentry, inode);
+	}
+	return error;
+}
+
+static int minix_create(struct inode * dir, struct dentry *dentry, int mode)
+{
+	return minix_mknod(dir, dentry, mode, 0);
+}
+
+static int minix_symlink(struct inode * dir, struct dentry *dentry,
+	  const char * symname)
+{
+	int err = -ENAMETOOLONG;
+	int i = strlen(symname)+1;
+	struct inode * inode;
+
+	if (i > dir->i_sb->s_blocksize)
+		goto out;
+
+	inode = minix_new_inode(dir, &err);
+	if (!inode)
+		goto out;
+
+	inode->i_mode = S_IFLNK | 0777;
+	minix_set_inode(inode, 0);
+	err = block_symlink(inode, symname, i);
+	if (err)
+		goto out_fail;
+
+	err = add_nondir(dentry, inode);
+out:
+	return err;
+
+out_fail:
+	dec_count(inode);
+	iput(inode);
+	goto out;
+}
+
+static int minix_link(struct dentry * old_dentry, struct inode * dir,
+	struct dentry *dentry)
+{
+	struct inode *inode = old_dentry->d_inode;
+
+	if (S_ISDIR(inode->i_mode))
+		return -EPERM;
+
+	if (inode->i_nlink >= inode->i_sb->u.minix_sb.s_link_max)
+		return -EMLINK;
+
+	inode->i_ctime = CURRENT_TIME;
+	inc_count(inode);
+	atomic_inc(&inode->i_count);
+	return add_nondir(dentry, inode);
+}
+
+static int minix_mkdir(struct inode * dir, struct dentry *dentry, int mode)
+{
+	struct inode * inode;
+	int err = -EMLINK;
+
+	if (dir->i_nlink >= dir->i_sb->u.minix_sb.s_link_max)
+		goto out;
+
+	inc_count(dir);
+
+	inode = minix_new_inode(dir, &err);
+	if (!inode)
+		goto out_dir;
+
+	inode->i_mode = S_IFDIR | mode;
+	if (dir->i_mode & S_ISGID)
+		inode->i_mode |= S_ISGID;
+	minix_set_inode(inode, 0);
+
+	inc_count(inode);
+
+	err = minix_make_empty(inode, dir);
+	if (err)
+		goto out_fail;
+
+	err = minix_add_link(dentry, inode);
+	if (err)
+		goto out_fail;
+
+	d_instantiate(dentry, inode);
+out:
+	return err;
+
+out_fail:
+	dec_count(inode);
+	dec_count(inode);
+	iput(inode);
+out_dir:
+	dec_count(dir);
+	goto out;
+}
+
+static int minix_unlink(struct inode * dir, struct dentry *dentry)
+{
+	int err = -ENOENT;
+	struct inode * inode = dentry->d_inode;
+	struct page * page;
+	struct minix_dir_entry * de;
+
+	de = minix_find_entry(dentry, &page);
+	if (!de)
+		goto end_unlink;
+
+	err = minix_delete_entry(de, page);
+	if (err)
+		goto end_unlink;
+
+	inode->i_ctime = dir->i_ctime;
+	dec_count(inode);
+end_unlink:
+	return err;
+}
+
+static int minix_rmdir(struct inode * dir, struct dentry *dentry)
+{
+	struct inode * inode = dentry->d_inode;
+	int err = -ENOTEMPTY;
+
+	if (minix_empty_dir(inode)) {
+		err = minix_unlink(dir, dentry);
+		if (!err) {
+			dec_count(dir);
+			dec_count(inode);
+		}
+	}
+	return err;
+}
+
+static int minix_rename(struct inode * old_dir, struct dentry *old_dentry,
+			   struct inode * new_dir, struct dentry *new_dentry)
+{
+	struct minix_sb_info * info = &old_dir->i_sb->u.minix_sb;
+	struct inode * old_inode = old_dentry->d_inode;
+	struct inode * new_inode = new_dentry->d_inode;
+	struct page * dir_page = NULL;
+	struct minix_dir_entry * dir_de = NULL;
+	struct page * old_page;
+	struct minix_dir_entry * old_de;
+	int err = -ENOENT;
+
+	old_de = minix_find_entry(old_dentry, &old_page);
+	if (!old_de)
+		goto out;
+
+	if (S_ISDIR(old_inode->i_mode)) {
+		err = -EIO;
+		dir_de = minix_dotdot(old_inode, &dir_page);
+		if (!dir_de)
+			goto out_old;
+	}
+
+	if (new_inode) {
+		struct page * new_page;
+		struct minix_dir_entry * new_de;
+
+		err = -ENOTEMPTY;
+		if (dir_de && !minix_empty_dir(new_inode))
+			goto out_dir;
+
+		err = -ENOENT;
+		new_de = minix_find_entry(new_dentry, &new_page);
+		if (!new_de)
+			goto out_dir;
+		inc_count(old_inode);
+		minix_set_link(new_de, new_page, old_inode);
+		new_inode->i_ctime = CURRENT_TIME;
+		if (dir_de)
+			new_inode->i_nlink--;
+		dec_count(new_inode);
+	} else {
+		if (dir_de) {
+			err = -EMLINK;
+			if (new_dir->i_nlink >= info->s_link_max)
+				goto out_dir;
+		}
+		inc_count(old_inode);
+		err = minix_add_link(new_dentry, old_inode);
+		if (err) {
+			dec_count(old_inode);
+			goto out_dir;
+		}
+		if (dir_de)
+			inc_count(new_dir);
+	}
+
+	minix_delete_entry(old_de, old_page);
+	dec_count(old_inode);
+
+	if (dir_de) {
+		minix_set_link(dir_de, dir_page, new_dir);
+		dec_count(old_dir);
+	}
+	return 0;
+
+out_dir:
+	if (dir_de) {
+		kunmap(dir_page);
+		page_cache_release(dir_page);
+	}
+out_old:
+	kunmap(old_page);
+	page_cache_release(old_page);
+out:
+	return err;
+}
+
+/*
+ * directories can handle most operations...
+ */
+struct inode_operations minix_dir_inode_operations = {
+	create:		minix_create,
+	lookup:		minix_lookup,
+	link:		minix_link,
+	unlink:		minix_unlink,
+	symlink:	minix_symlink,
+	mkdir:		minix_mkdir,
+	rmdir:		minix_rmdir,
+	mknod:		minix_mknod,
+	rename:		minix_rename,
+};
diff --git a/fs/msdos/Makefile b/fs/msdos/Makefile
new file mode 100644
index 00000000000000..a0424c507247d9
--- /dev/null
+++ b/fs/msdos/Makefile
@@ -0,0 +1,17 @@
+#
+# Makefile for the Linux msdos filesystem routines.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile.
+
+O_TARGET := msdos.o
+
+export-objs := msdosfs_syms.o
+
+obj-y := namei.o msdosfs_syms.o
+obj-m := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/msdos/msdosfs_syms.c b/fs/msdos/msdosfs_syms.c
new file mode 100644
index 00000000000000..38b2e0d6c70a01
--- /dev/null
+++ b/fs/msdos/msdosfs_syms.c
@@ -0,0 +1,43 @@
+/*
+ * linux/fs/msdos/msdosfs_syms.c
+ *
+ * Exported kernel symbols for the MS-DOS filesystem.
+ * These symbols are used by umsdos.
+ */
+
+#include <linux/module.h>
+
+#include <linux/mm.h>
+#include <linux/msdos_fs.h>
+#include <linux/init.h>
+
+/*
+ * Support for umsdos fs
+ *
+ * These symbols are _always_ exported, in case someone
+ * wants to install the umsdos module later.
+ */
+EXPORT_SYMBOL(msdos_create);
+EXPORT_SYMBOL(msdos_lookup);
+EXPORT_SYMBOL(msdos_mkdir);
+EXPORT_SYMBOL(msdos_rename);
+EXPORT_SYMBOL(msdos_rmdir);
+EXPORT_SYMBOL(msdos_unlink);
+EXPORT_SYMBOL(msdos_read_super);
+EXPORT_SYMBOL(msdos_put_super);
+
+static DECLARE_FSTYPE_DEV(msdos_fs_type, "msdos", msdos_read_super);
+
+static int __init init_msdos_fs(void)
+{
+	return register_filesystem(&msdos_fs_type);
+}
+
+static void __exit exit_msdos_fs(void)
+{
+	unregister_filesystem(&msdos_fs_type);
+}
+
+module_init(init_msdos_fs)
+module_exit(exit_msdos_fs)
+MODULE_LICENSE("GPL");
diff --git a/fs/msdos/namei.c b/fs/msdos/namei.c
new file mode 100644
index 00000000000000..ac4f2848c1c59a
--- /dev/null
+++ b/fs/msdos/namei.c
@@ -0,0 +1,600 @@
+/*
+ *  linux/fs/msdos/namei.c
+ *
+ *  Written 1992,1993 by Werner Almesberger
+ *  Hidden files 1995 by Albert Cahalan <albert@ccs.neu.edu> <adc@coe.neu.edu>
+ *  Rewritten for constant inumbers 1999 by Al Viro
+ */
+
+
+#define __NO_VERSION__
+#include <linux/module.h>
+
+#include <linux/sched.h>
+#include <linux/msdos_fs.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+
+#include <asm/uaccess.h>
+
+#define MSDOS_DEBUG 0
+#define PRINTK(x)
+
+/* MS-DOS "device special files" */
+
+static const char *reserved_names[] = {
+    "CON     ","PRN     ","NUL     ","AUX     ",
+    "LPT1    ","LPT2    ","LPT3    ","LPT4    ",
+    "COM1    ","COM2    ","COM3    ","COM4    ",
+    NULL };
+
+
+/* Characters that are undesirable in an MS-DOS file name */
+  
+static char bad_chars[] = "*?<>|\"";
+static char bad_if_strict_pc[] = "+=,; ";
+static char bad_if_strict_atari[] = " "; /* GEMDOS is less restrictive */
+#define	bad_if_strict(opts) ((opts)->atari ? bad_if_strict_atari : bad_if_strict_pc)
+
+/* Must die */
+void msdos_put_super(struct super_block *sb)
+{
+	fat_put_super(sb);
+}
+
+/***** Formats an MS-DOS file name. Rejects invalid names. */
+static int msdos_format_name(const char *name,int len,
+	char *res,struct fat_mount_options *opts)
+	/* name is the proposed name, len is its length, res is
+	 * the resulting name, opts->name_check is either (r)elaxed,
+	 * (n)ormal or (s)trict, opts->dotsOK allows dots at the
+	 * beginning of name (for hidden files)
+	 */
+{
+	char *walk;
+	const char **reserved;
+	unsigned char c;
+	int space;
+
+	if (name[0] == '.') {  /* dotfile because . and .. already done */
+		if (opts->dotsOK) {
+			/* Get rid of dot - test for it elsewhere */
+			name++; len--;
+		}
+		else if (!opts->atari) return -EINVAL;
+	}
+	/* disallow names that _really_ start with a dot for MS-DOS, GEMDOS does
+	 * not care */
+	space = !opts->atari;
+	c = 0;
+	for (walk = res; len && walk-res < 8; walk++) {
+	    	c = *name++;
+		len--;
+		if (opts->name_check != 'r' && strchr(bad_chars,c))
+			return -EINVAL;
+		if (opts->name_check == 's' && strchr(bad_if_strict(opts),c))
+			return -EINVAL;
+  		if (c >= 'A' && c <= 'Z' && opts->name_check == 's')
+			return -EINVAL;
+		if (c < ' ' || c == ':' || c == '\\') return -EINVAL;
+/*  0xE5 is legal as a first character, but we must substitute 0x05     */
+/*  because 0xE5 marks deleted files.  Yes, DOS really does this.       */
+/*  It seems that Microsoft hacked DOS to support non-US characters     */
+/*  after the 0xE5 character was already in use to mark deleted files.  */
+		if((res==walk) && (c==0xE5)) c=0x05;
+		if (c == '.') break;
+		space = (c == ' ');
+		*walk = (!opts->nocase && c >= 'a' && c <= 'z') ? c-32 : c;
+	}
+	if (space) return -EINVAL;
+	if (opts->name_check == 's' && len && c != '.') {
+		c = *name++;
+		len--;
+		if (c != '.') return -EINVAL;
+	}
+	while (c != '.' && len--) c = *name++;
+	if (c == '.') {
+		while (walk-res < 8) *walk++ = ' ';
+		while (len > 0 && walk-res < MSDOS_NAME) {
+			c = *name++;
+			len--;
+			if (opts->name_check != 'r' && strchr(bad_chars,c))
+				return -EINVAL;
+			if (opts->name_check == 's' &&
+			    strchr(bad_if_strict(opts),c))
+				return -EINVAL;
+			if (c < ' ' || c == ':' || c == '\\')
+				return -EINVAL;
+			if (c == '.') {
+				if (opts->name_check == 's')
+					return -EINVAL;
+				break;
+			}
+			if (c >= 'A' && c <= 'Z' && opts->name_check == 's')
+				return -EINVAL;
+			space = c == ' ';
+			*walk++ = (!opts->nocase && c >= 'a' && c <= 'z') ? c-32 : c;
+		}
+		if (space) return -EINVAL;
+		if (opts->name_check == 's' && len) return -EINVAL;
+	}
+	while (walk-res < MSDOS_NAME) *walk++ = ' ';
+	if (!opts->atari)
+		/* GEMDOS is less stupid and has no reserved names */
+		for (reserved = reserved_names; *reserved; reserved++)
+			if (!strncmp(res,*reserved,8)) return -EINVAL;
+	return 0;
+}
+
+/***** Locates a directory entry.  Uses unformatted name. */
+static int msdos_find(struct inode *dir, const char *name, int len,
+		      struct buffer_head **bh, struct msdos_dir_entry **de,
+		      loff_t *i_pos)
+{
+	int res;
+	char dotsOK;
+	char msdos_name[MSDOS_NAME];
+
+	dotsOK = MSDOS_SB(dir->i_sb)->options.dotsOK;
+	res = msdos_format_name(name,len, msdos_name,&MSDOS_SB(dir->i_sb)->options);
+	if (res < 0)
+		return -ENOENT;
+	res = fat_scan(dir, msdos_name, bh, de, i_pos);
+	if (!res && dotsOK) {
+		if (name[0]=='.') {
+			if (!((*de)->attr & ATTR_HIDDEN))
+				res = -ENOENT;
+		} else {
+			if ((*de)->attr & ATTR_HIDDEN)
+				res = -ENOENT;
+		}
+	}
+	return res;
+}
+
+/*
+ * Compute the hash for the msdos name corresponding to the dentry.
+ * Note: if the name is invalid, we leave the hash code unchanged so
+ * that the existing dentry can be used. The msdos fs routines will
+ * return ENOENT or EINVAL as appropriate.
+ */
+static int msdos_hash(struct dentry *dentry, struct qstr *qstr)
+{
+	struct fat_mount_options *options = & (MSDOS_SB(dentry->d_sb)->options);
+	int error;
+	char msdos_name[MSDOS_NAME];
+	
+	error = msdos_format_name(qstr->name, qstr->len, msdos_name, options);
+	if (!error)
+		qstr->hash = full_name_hash(msdos_name, MSDOS_NAME);
+	return 0;
+}
+
+/*
+ * Compare two msdos names. If either of the names are invalid,
+ * we fall back to doing the standard name comparison.
+ */
+static int msdos_cmp(struct dentry *dentry, struct qstr *a, struct qstr *b)
+{
+	struct fat_mount_options *options = & (MSDOS_SB(dentry->d_sb)->options);
+	int error;
+	char a_msdos_name[MSDOS_NAME], b_msdos_name[MSDOS_NAME];
+
+	error = msdos_format_name(a->name, a->len, a_msdos_name, options);
+	if (error)
+		goto old_compare;
+	error = msdos_format_name(b->name, b->len, b_msdos_name, options);
+	if (error)
+		goto old_compare;
+	error = memcmp(a_msdos_name, b_msdos_name, MSDOS_NAME);
+out:
+	return error;
+
+old_compare:
+	error = 1;
+	if (a->len == b->len)
+		error = memcmp(a->name, b->name, a->len);
+	goto out;
+}
+
+
+static struct dentry_operations msdos_dentry_operations = {
+	d_hash:		msdos_hash,
+	d_compare:	msdos_cmp,
+};
+
+/*
+ * AV. Wrappers for FAT sb operations. Is it wise?
+ */
+
+/***** Get inode using directory and name */
+struct dentry *msdos_lookup(struct inode *dir,struct dentry *dentry)
+{
+	struct super_block *sb = dir->i_sb;
+	struct inode *inode = NULL;
+	struct msdos_dir_entry *de;
+	struct buffer_head *bh = NULL;
+	loff_t i_pos;
+	int res;
+	
+	PRINTK (("msdos_lookup\n"));
+
+	dentry->d_op = &msdos_dentry_operations;
+
+	res = msdos_find(dir, dentry->d_name.name, dentry->d_name.len, &bh,
+			 &de, &i_pos);
+	if (res == -ENOENT)
+		goto add;
+	if (res < 0)
+		goto out;
+	inode = fat_build_inode(sb, de, i_pos, &res);
+	if (res)
+		goto out;
+add:
+	d_add(dentry, inode);
+	res = 0;
+out:
+	if (bh)
+		fat_brelse(sb, bh);
+	return ERR_PTR(res);
+}
+
+/***** Creates a directory entry (name is already formatted). */
+static int msdos_add_entry(struct inode *dir, const char *name,
+			   struct buffer_head **bh,
+			   struct msdos_dir_entry **de,
+			   loff_t *i_pos, int is_dir, int is_hid)
+{
+	struct super_block *sb = dir->i_sb;
+	int res;
+
+	res = fat_add_entries(dir, 1, bh, de, i_pos);
+ 	if (res < 0)
+		return res;
+	/*
+	 * XXX all times should be set by caller upon successful completion.
+	 */
+	dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+	mark_inode_dirty(dir);
+	memcpy((*de)->name,name,MSDOS_NAME);
+	(*de)->attr = is_dir ? ATTR_DIR : ATTR_ARCH;
+	if (is_hid)
+		(*de)->attr |= ATTR_HIDDEN;
+	(*de)->start = 0;
+	(*de)->starthi = 0;
+	fat_date_unix2dos(dir->i_mtime,&(*de)->time,&(*de)->date);
+	(*de)->size = 0;
+	fat_mark_buffer_dirty(sb, *bh);
+	return 0;
+}
+
+/*
+ * AV. Huh??? It's exported. Oughtta check usage.
+ */
+
+/***** Create a file */
+int msdos_create(struct inode *dir,struct dentry *dentry,int mode)
+{
+	struct super_block *sb = dir->i_sb;
+	struct buffer_head *bh;
+	struct msdos_dir_entry *de;
+	struct inode *inode;
+	loff_t i_pos;
+	int res, is_hid;
+	char msdos_name[MSDOS_NAME];
+
+	res = msdos_format_name(dentry->d_name.name,dentry->d_name.len,
+				msdos_name, &MSDOS_SB(sb)->options);
+	if (res < 0)
+		return res;
+	is_hid = (dentry->d_name.name[0]=='.') && (msdos_name[0]!='.');
+	/* Have to do it due to foo vs. .foo conflicts */
+	if (fat_scan(dir, msdos_name, &bh, &de, &i_pos) >= 0) {
+		fat_brelse(sb, bh);
+		return -EINVAL;
+ 	}
+	inode = NULL;
+	res = msdos_add_entry(dir, msdos_name, &bh, &de, &i_pos, 0, is_hid);
+	if (res)
+		return res;
+	inode = fat_build_inode(dir->i_sb, de, i_pos, &res);
+	fat_brelse(sb, bh);
+	if (!inode)
+		return res;
+	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+	mark_inode_dirty(inode);
+	d_instantiate(dentry, inode);
+	return 0;
+}
+
+/***** Remove a directory */
+int msdos_rmdir(struct inode *dir, struct dentry *dentry)
+{
+	struct super_block *sb = dir->i_sb;
+	struct inode *inode = dentry->d_inode;
+	loff_t i_pos;
+	int res;
+	struct buffer_head *bh;
+	struct msdos_dir_entry *de;
+
+	bh = NULL;
+	res = msdos_find(dir, dentry->d_name.name, dentry->d_name.len,
+			 &bh, &de, &i_pos);
+	if (res < 0)
+		goto rmdir_done;
+	/*
+	 * Check whether the directory is not in use, then check
+	 * whether it is empty.
+	 */
+	res = fat_dir_empty(inode);
+	if (res)
+		goto rmdir_done;
+
+	de->name[0] = DELETED_FLAG;
+	fat_mark_buffer_dirty(sb, bh);
+	fat_detach(inode);
+	inode->i_nlink = 0;
+	inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+	dir->i_nlink--;
+	mark_inode_dirty(inode);
+	mark_inode_dirty(dir);
+	res = 0;
+
+rmdir_done:
+	fat_brelse(sb, bh);
+	return res;
+}
+
+/***** Make a directory */
+int msdos_mkdir(struct inode *dir,struct dentry *dentry,int mode)
+{
+	struct super_block *sb = dir->i_sb;
+	struct buffer_head *bh;
+	struct msdos_dir_entry *de;
+	struct inode *inode;
+	int res,is_hid;
+	char msdos_name[MSDOS_NAME];
+	loff_t i_pos;
+
+	res = msdos_format_name(dentry->d_name.name,dentry->d_name.len,
+				msdos_name, &MSDOS_SB(sb)->options);
+	if (res < 0)
+		return res;
+	is_hid = (dentry->d_name.name[0]=='.') && (msdos_name[0]!='.');
+	/* foo vs .foo situation */
+	if (fat_scan(dir, msdos_name, &bh, &de, &i_pos) >= 0)
+		goto out_exist;
+
+	res = msdos_add_entry(dir, msdos_name, &bh, &de, &i_pos, 1, is_hid);
+	if (res)
+		goto out_unlock;
+	inode = fat_build_inode(dir->i_sb, de, i_pos, &res);
+	if (!inode) {
+		fat_brelse(sb, bh);
+		goto out_unlock;
+	}
+	res = 0;
+
+	dir->i_nlink++;
+	inode->i_nlink = 2; /* no need to mark them dirty */
+
+	res = fat_new_dir(inode, dir, 0);
+	if (res)
+		goto mkdir_error;
+
+	fat_brelse(sb, bh);
+	d_instantiate(dentry, inode);
+	res = 0;
+
+out_unlock:
+	return res;
+
+mkdir_error:
+	printk(KERN_WARNING "msdos_mkdir: error=%d, attempting cleanup\n", res);
+	inode->i_nlink = 0;
+	inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+	dir->i_nlink--;
+	mark_inode_dirty(inode);
+	mark_inode_dirty(dir);
+	de->name[0] = DELETED_FLAG;
+	fat_mark_buffer_dirty(sb, bh);
+	fat_brelse(sb, bh);
+	fat_detach(inode);
+	iput(inode);
+	goto out_unlock;
+
+out_exist:
+	fat_brelse(sb, bh);
+	res = -EINVAL;
+	goto out_unlock;
+}
+
+/***** Unlink a file */
+int msdos_unlink( struct inode *dir, struct dentry *dentry)
+{
+	struct super_block *sb = dir->i_sb;
+	struct inode *inode = dentry->d_inode;
+	loff_t i_pos;
+	int res;
+	struct buffer_head *bh;
+	struct msdos_dir_entry *de;
+
+	bh = NULL;
+	res = msdos_find(dir, dentry->d_name.name, dentry->d_name.len,
+			 &bh, &de, &i_pos);
+	if (res < 0)
+		goto unlink_done;
+
+	de->name[0] = DELETED_FLAG;
+	fat_mark_buffer_dirty(sb, bh);
+	fat_detach(inode);
+	fat_brelse(sb, bh);
+	inode->i_nlink = 0;
+	inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+	mark_inode_dirty(inode);
+	mark_inode_dirty(dir);
+	res = 0;
+unlink_done:
+	return res;
+}
+
+static int do_msdos_rename(struct inode *old_dir, char *old_name,
+    struct dentry *old_dentry,
+    struct inode *new_dir,char *new_name, struct dentry *new_dentry,
+    struct buffer_head *old_bh,
+    struct msdos_dir_entry *old_de, loff_t old_i_pos, int is_hid)
+{
+	struct super_block *sb = old_dir->i_sb;
+	struct buffer_head *new_bh=NULL,*dotdot_bh=NULL;
+	struct msdos_dir_entry *new_de,*dotdot_de;
+	struct inode *old_inode,*new_inode;
+	loff_t new_i_pos, dotdot_i_pos;
+	int error;
+	int is_dir;
+
+	old_inode = old_dentry->d_inode;
+	new_inode = new_dentry->d_inode;
+	is_dir = S_ISDIR(old_inode->i_mode);
+
+	if (fat_scan(new_dir, new_name, &new_bh, &new_de, &new_i_pos) >= 0
+	    && !new_inode)
+		goto degenerate_case;
+	if (is_dir) {
+		if (new_inode) {
+			error = fat_dir_empty(new_inode);
+			if (error)
+				goto out;
+		}
+		error = fat_scan(old_inode, MSDOS_DOTDOT, &dotdot_bh,
+				&dotdot_de, &dotdot_i_pos);
+		if (error < 0) {
+			printk(KERN_WARNING
+				"MSDOS: %s/%s, get dotdot failed, ret=%d\n",
+				old_dentry->d_parent->d_name.name,
+				old_dentry->d_name.name, error);
+			goto out;
+		}
+	}
+	if (!new_bh) {
+		error = msdos_add_entry(new_dir, new_name, &new_bh, &new_de,
+					&new_i_pos, is_dir, is_hid);
+		if (error)
+			goto out;
+	}
+	new_dir->i_version = ++event;
+
+	/* There we go */
+
+	if (new_inode)
+		fat_detach(new_inode);
+	old_de->name[0] = DELETED_FLAG;
+	fat_mark_buffer_dirty(sb, old_bh);
+	fat_detach(old_inode);
+	fat_attach(old_inode, new_i_pos);
+	if (is_hid)
+		MSDOS_I(old_inode)->i_attrs |= ATTR_HIDDEN;
+	else
+		MSDOS_I(old_inode)->i_attrs &= ~ATTR_HIDDEN;
+	mark_inode_dirty(old_inode);
+	old_dir->i_version = ++event;
+	old_dir->i_ctime = old_dir->i_mtime = CURRENT_TIME;
+	mark_inode_dirty(old_dir);
+	if (new_inode) {
+		new_inode->i_nlink--;
+		new_inode->i_ctime = CURRENT_TIME;
+		mark_inode_dirty(new_inode);
+	}
+	if (dotdot_bh) {
+		dotdot_de->start = CT_LE_W(MSDOS_I(new_dir)->i_logstart);
+		dotdot_de->starthi = CT_LE_W((MSDOS_I(new_dir)->i_logstart) >> 16);
+		fat_mark_buffer_dirty(sb, dotdot_bh);
+		old_dir->i_nlink--;
+		mark_inode_dirty(old_dir);
+		if (new_inode) {
+			new_inode->i_nlink--;
+			mark_inode_dirty(new_inode);
+		} else {
+			new_dir->i_nlink++;
+			mark_inode_dirty(new_dir);
+		}
+	}
+	error = 0;
+out:
+	fat_brelse(sb, new_bh);
+	fat_brelse(sb, dotdot_bh);
+	return error;
+
+degenerate_case:
+	error = -EINVAL;
+	if (new_de!=old_de)
+		goto out;
+	if (is_hid)
+		MSDOS_I(old_inode)->i_attrs |= ATTR_HIDDEN;
+	else
+		MSDOS_I(old_inode)->i_attrs &= ~ATTR_HIDDEN;
+	mark_inode_dirty(old_inode);
+	old_dir->i_version = ++event;
+	old_dir->i_ctime = old_dir->i_mtime = CURRENT_TIME;
+	mark_inode_dirty(old_dir);
+	return 0;
+}
+
+/***** Rename, a wrapper for rename_same_dir & rename_diff_dir */
+int msdos_rename(struct inode *old_dir,struct dentry *old_dentry,
+		 struct inode *new_dir,struct dentry *new_dentry)
+{
+	struct super_block *sb = old_dir->i_sb;
+	struct buffer_head *old_bh;
+	struct msdos_dir_entry *old_de;
+	loff_t old_i_pos;
+	int error, is_hid, old_hid; /* if new file and old file are hidden */
+	char old_msdos_name[MSDOS_NAME], new_msdos_name[MSDOS_NAME];
+
+	error = msdos_format_name(old_dentry->d_name.name,
+				  old_dentry->d_name.len,old_msdos_name,
+				  &MSDOS_SB(old_dir->i_sb)->options);
+	if (error < 0)
+		goto rename_done;
+	error = msdos_format_name(new_dentry->d_name.name,
+				  new_dentry->d_name.len,new_msdos_name,
+				  &MSDOS_SB(new_dir->i_sb)->options);
+	if (error < 0)
+		goto rename_done;
+
+	is_hid  = (new_dentry->d_name.name[0]=='.') && (new_msdos_name[0]!='.');
+	old_hid = (old_dentry->d_name.name[0]=='.') && (old_msdos_name[0]!='.');
+	error = fat_scan(old_dir, old_msdos_name, &old_bh, &old_de, &old_i_pos);
+	if (error < 0)
+		goto rename_done;
+
+	error = do_msdos_rename(old_dir, old_msdos_name, old_dentry,
+				new_dir, new_msdos_name, new_dentry,
+				old_bh, old_de, old_i_pos, is_hid);
+	fat_brelse(sb, old_bh);
+
+rename_done:
+	return error;
+}
+
+
+/* The public inode operations for the msdos fs */
+struct inode_operations msdos_dir_inode_operations = {
+	create:		msdos_create,
+	lookup:		msdos_lookup,
+	unlink:		msdos_unlink,
+	mkdir:		msdos_mkdir,
+	rmdir:		msdos_rmdir,
+	rename:		msdos_rename,
+	setattr:	fat_notify_change,
+};
+
+struct super_block *msdos_read_super(struct super_block *sb,void *data, int silent)
+{
+	struct super_block *res;
+
+	MSDOS_SB(sb)->options.isvfat = 0;
+	res = fat_read_super(sb, data, silent, &msdos_dir_inode_operations);
+	if (res)
+		sb->s_root->d_op = &msdos_dentry_operations;
+	return res;
+}
diff --git a/fs/namei.c b/fs/namei.c
new file mode 100644
index 00000000000000..da80d852d43cf9
--- /dev/null
+++ b/fs/namei.c
@@ -0,0 +1,2053 @@
+/*
+ *  linux/fs/namei.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ */
+
+/*
+ * Some corrections by tytso.
+ */
+
+/* [Feb 1997 T. Schoebel-Theuer] Complete rewrite of the pathname
+ * lookup logic.
+ */
+/* [Feb-Apr 2000, AV] Rewrite to the new namespace architecture.
+ */
+
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/fs.h>
+#include <linux/quotaops.h>
+#include <linux/pagemap.h>
+#include <linux/dnotify.h>
+#include <linux/smp_lock.h>
+#include <linux/personality.h>
+
+#include <asm/namei.h>
+#include <asm/uaccess.h>
+
+#define ACC_MODE(x) ("\000\004\002\006"[(x)&O_ACCMODE])
+
+/* [Feb-1997 T. Schoebel-Theuer]
+ * Fundamental changes in the pathname lookup mechanisms (namei)
+ * were necessary because of omirr.  The reason is that omirr needs
+ * to know the _real_ pathname, not the user-supplied one, in case
+ * of symlinks (and also when transname replacements occur).
+ *
+ * The new code replaces the old recursive symlink resolution with
+ * an iterative one (in case of non-nested symlink chains).  It does
+ * this with calls to <fs>_follow_link().
+ * As a side effect, dir_namei(), _namei() and follow_link() are now 
+ * replaced with a single function lookup_dentry() that can handle all 
+ * the special cases of the former code.
+ *
+ * With the new dcache, the pathname is stored at each inode, at least as
+ * long as the refcount of the inode is positive.  As a side effect, the
+ * size of the dcache depends on the inode cache and thus is dynamic.
+ *
+ * [29-Apr-1998 C. Scott Ananian] Updated above description of symlink
+ * resolution to correspond with current state of the code.
+ *
+ * Note that the symlink resolution is not *completely* iterative.
+ * There is still a significant amount of tail- and mid- recursion in
+ * the algorithm.  Also, note that <fs>_readlink() is not used in
+ * lookup_dentry(): lookup_dentry() on the result of <fs>_readlink()
+ * may return different results than <fs>_follow_link().  Many virtual
+ * filesystems (including /proc) exhibit this behavior.
+ */
+
+/* [24-Feb-97 T. Schoebel-Theuer] Side effects caused by new implementation:
+ * New symlink semantics: when open() is called with flags O_CREAT | O_EXCL
+ * and the name already exists in form of a symlink, try to create the new
+ * name indicated by the symlink. The old code always complained that the
+ * name already exists, due to not following the symlink even if its target
+ * is nonexistent.  The new semantics affects also mknod() and link() when
+ * the name is a symlink pointing to a non-existant name.
+ *
+ * I don't know which semantics is the right one, since I have no access
+ * to standards. But I found by trial that HP-UX 9.0 has the full "new"
+ * semantics implemented, while SunOS 4.1.1 and Solaris (SunOS 5.4) have the
+ * "old" one. Personally, I think the new semantics is much more logical.
+ * Note that "ln old new" where "new" is a symlink pointing to a non-existing
+ * file does succeed in both HP-UX and SunOs, but not in Solaris
+ * and in the old Linux semantics.
+ */
+
+/* [16-Dec-97 Kevin Buhr] For security reasons, we change some symlink
+ * semantics.  See the comments in "open_namei" and "do_link" below.
+ *
+ * [10-Sep-98 Alan Modra] Another symlink change.
+ */
+
+/* [Feb-Apr 2000 AV] Complete rewrite. Rules for symlinks:
+ *	inside the path - always follow.
+ *	in the last component in creation/removal/renaming - never follow.
+ *	if LOOKUP_FOLLOW passed - follow.
+ *	if the pathname has trailing slashes - follow.
+ *	otherwise - don't follow.
+ * (applied in that order).
+ *
+ * [Jun 2000 AV] Inconsistent behaviour of open() in case if flags==O_CREAT
+ * restored for 2.4. This is the last surviving part of old 4.2BSD bug.
+ * During the 2.4 we need to fix the userland stuff depending on it -
+ * hopefully we will be able to get rid of that wart in 2.5. So far only
+ * XEmacs seems to be relying on it...
+ */
+
+/* In order to reduce some races, while at the same time doing additional
+ * checking and hopefully speeding things up, we copy filenames to the
+ * kernel data space before using them..
+ *
+ * POSIX.1 2.4: an empty pathname is invalid (ENOENT).
+ * PATH_MAX includes the nul terminator --RR.
+ */
+static inline int do_getname(const char *filename, char *page)
+{
+	int retval;
+	unsigned long len = PATH_MAX;
+
+	if ((unsigned long) filename >= TASK_SIZE) {
+		if (!segment_eq(get_fs(), KERNEL_DS))
+			return -EFAULT;
+	} else if (TASK_SIZE - (unsigned long) filename < PATH_MAX)
+		len = TASK_SIZE - (unsigned long) filename;
+
+	retval = strncpy_from_user((char *)page, filename, len);
+	if (retval > 0) {
+		if (retval < len)
+			return 0;
+		return -ENAMETOOLONG;
+	} else if (!retval)
+		retval = -ENOENT;
+	return retval;
+}
+
+char * getname(const char * filename)
+{
+	char *tmp, *result;
+
+	result = ERR_PTR(-ENOMEM);
+	tmp = __getname();
+	if (tmp)  {
+		int retval = do_getname(filename, tmp);
+
+		result = tmp;
+		if (retval < 0) {
+			putname(tmp);
+			result = ERR_PTR(retval);
+		}
+	}
+	return result;
+}
+
+/*
+ *	vfs_permission()
+ *
+ * is used to check for read/write/execute permissions on a file.
+ * We use "fsuid" for this, letting us set arbitrary permissions
+ * for filesystem access without changing the "normal" uids which
+ * are used for other things..
+ */
+int vfs_permission(struct inode * inode, int mask)
+{
+	umode_t			mode = inode->i_mode;
+
+	if (mask & MAY_WRITE) {
+		/*
+		 * Nobody gets write access to a read-only fs.
+		 */
+		if (IS_RDONLY(inode) &&
+		    (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)))
+			return -EROFS;
+
+		/*
+		 * Nobody gets write access to an immutable file.
+		 */
+		if (IS_IMMUTABLE(inode))
+			return -EACCES;
+	}
+
+	if (current->fsuid == inode->i_uid)
+		mode >>= 6;
+	else if (in_group_p(inode->i_gid))
+		mode >>= 3;
+
+	/*
+	 * If the DACs are ok we don't need any capability check.
+	 */
+	if (((mode & mask & (MAY_READ|MAY_WRITE|MAY_EXEC)) == mask))
+		return 0;
+
+	/*
+	 * Read/write DACs are always overridable.
+	 * Executable DACs are overridable if at least one exec bit is set.
+	 */
+	if ((mask & (MAY_READ|MAY_WRITE)) || (inode->i_mode & S_IXUGO))
+		if (capable(CAP_DAC_OVERRIDE))
+			return 0;
+
+	/*
+	 * Searching includes executable on directories, else just read.
+	 */
+	if (mask == MAY_READ || (S_ISDIR(inode->i_mode) && !(mask & MAY_WRITE)))
+		if (capable(CAP_DAC_READ_SEARCH))
+			return 0;
+
+	return -EACCES;
+}
+
+int permission(struct inode * inode,int mask)
+{
+	if (inode->i_op && inode->i_op->permission) {
+		int retval;
+		lock_kernel();
+		retval = inode->i_op->permission(inode, mask);
+		unlock_kernel();
+		return retval;
+	}
+	return vfs_permission(inode, mask);
+}
+
+/*
+ * get_write_access() gets write permission for a file.
+ * put_write_access() releases this write permission.
+ * This is used for regular files.
+ * We cannot support write (and maybe mmap read-write shared) accesses and
+ * MAP_DENYWRITE mmappings simultaneously. The i_writecount field of an inode
+ * can have the following values:
+ * 0: no writers, no VM_DENYWRITE mappings
+ * < 0: (-i_writecount) vm_area_structs with VM_DENYWRITE set exist
+ * > 0: (i_writecount) users are writing to the file.
+ *
+ * Normally we operate on that counter with atomic_{inc,dec} and it's safe
+ * except for the cases where we don't hold i_writecount yet. Then we need to
+ * use {get,deny}_write_access() - these functions check the sign and refuse
+ * to do the change if sign is wrong. Exclusion between them is provided by
+ * spinlock (arbitration_lock) and I'll rip the second arsehole to the first
+ * who will try to move it in struct inode - just leave it here.
+ */
+static spinlock_t arbitration_lock = SPIN_LOCK_UNLOCKED;
+int get_write_access(struct inode * inode)
+{
+	spin_lock(&arbitration_lock);
+	if (atomic_read(&inode->i_writecount) < 0) {
+		spin_unlock(&arbitration_lock);
+		return -ETXTBSY;
+	}
+	atomic_inc(&inode->i_writecount);
+	spin_unlock(&arbitration_lock);
+	return 0;
+}
+int deny_write_access(struct file * file)
+{
+	spin_lock(&arbitration_lock);
+	if (atomic_read(&file->f_dentry->d_inode->i_writecount) > 0) {
+		spin_unlock(&arbitration_lock);
+		return -ETXTBSY;
+	}
+	atomic_dec(&file->f_dentry->d_inode->i_writecount);
+	spin_unlock(&arbitration_lock);
+	return 0;
+}
+
+void path_release(struct nameidata *nd)
+{
+	dput(nd->dentry);
+	mntput(nd->mnt);
+}
+
+/*
+ * Internal lookup() using the new generic dcache.
+ * SMP-safe
+ */
+static struct dentry * cached_lookup(struct dentry * parent, struct qstr * name, int flags)
+{
+	struct dentry * dentry = d_lookup(parent, name);
+
+	if (dentry && dentry->d_op && dentry->d_op->d_revalidate) {
+		if (!dentry->d_op->d_revalidate(dentry, flags) && !d_invalidate(dentry)) {
+			dput(dentry);
+			dentry = NULL;
+		}
+	}
+	return dentry;
+}
+
+/*
+ * This is called when everything else fails, and we actually have
+ * to go to the low-level filesystem to find out what we should do..
+ *
+ * We get the directory semaphore, and after getting that we also
+ * make sure that nobody added the entry to the dcache in the meantime..
+ * SMP-safe
+ */
+static struct dentry * real_lookup(struct dentry * parent, struct qstr * name, int flags)
+{
+	struct dentry * result;
+	struct inode *dir = parent->d_inode;
+
+	down(&dir->i_sem);
+	/*
+	 * First re-do the cached lookup just in case it was created
+	 * while we waited for the directory semaphore..
+	 *
+	 * FIXME! This could use version numbering or similar to
+	 * avoid unnecessary cache lookups.
+	 */
+	result = d_lookup(parent, name);
+	if (!result) {
+		struct dentry * dentry = d_alloc(parent, name);
+		result = ERR_PTR(-ENOMEM);
+		if (dentry) {
+			lock_kernel();
+			result = dir->i_op->lookup(dir, dentry);
+			unlock_kernel();
+			if (result)
+				dput(dentry);
+			else
+				result = dentry;
+		}
+		up(&dir->i_sem);
+		return result;
+	}
+
+	/*
+	 * Uhhuh! Nasty case: the cache was re-populated while
+	 * we waited on the semaphore. Need to revalidate.
+	 */
+	up(&dir->i_sem);
+	if (result->d_op && result->d_op->d_revalidate) {
+		if (!result->d_op->d_revalidate(result, flags) && !d_invalidate(result)) {
+			dput(result);
+			result = ERR_PTR(-ENOENT);
+		}
+	}
+	return result;
+}
+
+/*
+ * This limits recursive symlink follows to 5, while
+ * limiting consecutive symlinks to 40.
+ *
+ * Without that kind of total limit, nasty chains of consecutive
+ * symlinks can cause almost arbitrarily long lookups. 
+ */
+static inline int do_follow_link(struct dentry *dentry, struct nameidata *nd)
+{
+	int err;
+	if (current->link_count >= 5)
+		goto loop;
+	if (current->total_link_count >= 40)
+		goto loop;
+	if (current->need_resched) {
+		current->state = TASK_RUNNING;
+		schedule();
+	}
+	current->link_count++;
+	current->total_link_count++;
+	UPDATE_ATIME(dentry->d_inode);
+	err = dentry->d_inode->i_op->follow_link(dentry, nd);
+	current->link_count--;
+	return err;
+loop:
+	path_release(nd);
+	return -ELOOP;
+}
+
+static inline int __follow_up(struct vfsmount **mnt, struct dentry **base)
+{
+	struct vfsmount *parent;
+	struct dentry *dentry;
+	spin_lock(&dcache_lock);
+	parent=(*mnt)->mnt_parent;
+	if (parent == *mnt) {
+		spin_unlock(&dcache_lock);
+		return 0;
+	}
+	mntget(parent);
+	dentry=dget((*mnt)->mnt_mountpoint);
+	spin_unlock(&dcache_lock);
+	dput(*base);
+	*base = dentry;
+	mntput(*mnt);
+	*mnt = parent;
+	return 1;
+}
+
+int follow_up(struct vfsmount **mnt, struct dentry **dentry)
+{
+	return __follow_up(mnt, dentry);
+}
+
+static inline int __follow_down(struct vfsmount **mnt, struct dentry **dentry)
+{
+	struct vfsmount *mounted;
+
+	spin_lock(&dcache_lock);
+	mounted = lookup_mnt(*mnt, *dentry);
+	if (mounted) {
+		*mnt = mntget(mounted);
+		spin_unlock(&dcache_lock);
+		dput(*dentry);
+		mntput(mounted->mnt_parent);
+		*dentry = dget(mounted->mnt_root);
+		return 1;
+	}
+	spin_unlock(&dcache_lock);
+	return 0;
+}
+
+int follow_down(struct vfsmount **mnt, struct dentry **dentry)
+{
+	return __follow_down(mnt,dentry);
+}
+ 
+static inline void follow_dotdot(struct nameidata *nd)
+{
+	while(1) {
+		struct vfsmount *parent;
+		struct dentry *dentry;
+		read_lock(&current->fs->lock);
+		if (nd->dentry == current->fs->root &&
+		    nd->mnt == current->fs->rootmnt)  {
+			read_unlock(&current->fs->lock);
+			break;
+		}
+		read_unlock(&current->fs->lock);
+		spin_lock(&dcache_lock);
+		if (nd->dentry != nd->mnt->mnt_root) {
+			dentry = dget(nd->dentry->d_parent);
+			spin_unlock(&dcache_lock);
+			dput(nd->dentry);
+			nd->dentry = dentry;
+			break;
+		}
+		parent=nd->mnt->mnt_parent;
+		if (parent == nd->mnt) {
+			spin_unlock(&dcache_lock);
+			break;
+		}
+		mntget(parent);
+		dentry=dget(nd->mnt->mnt_mountpoint);
+		spin_unlock(&dcache_lock);
+		dput(nd->dentry);
+		nd->dentry = dentry;
+		mntput(nd->mnt);
+		nd->mnt = parent;
+	}
+	while (d_mountpoint(nd->dentry) && __follow_down(&nd->mnt, &nd->dentry))
+		;
+}
+
+/*
+ * Name resolution.
+ *
+ * This is the basic name resolution function, turning a pathname
+ * into the final dentry.
+ *
+ * We expect 'base' to be positive and a directory.
+ */
+int fastcall link_path_walk(const char * name, struct nameidata *nd)
+{
+	struct dentry *dentry;
+	struct inode *inode;
+	int err;
+	unsigned int lookup_flags = nd->flags;
+
+	while (*name=='/')
+		name++;
+	if (!*name)
+		goto return_reval;
+
+	inode = nd->dentry->d_inode;
+	if (current->link_count)
+		lookup_flags = LOOKUP_FOLLOW;
+
+	/* At this point we know we have a real path component. */
+	for(;;) {
+		unsigned long hash;
+		struct qstr this;
+		unsigned int c;
+
+		err = permission(inode, MAY_EXEC);
+		dentry = ERR_PTR(err);
+ 		if (err)
+			break;
+
+		this.name = name;
+		c = *(const unsigned char *)name;
+
+		hash = init_name_hash();
+		do {
+			name++;
+			hash = partial_name_hash(c, hash);
+			c = *(const unsigned char *)name;
+		} while (c && (c != '/'));
+		this.len = name - (const char *) this.name;
+		this.hash = end_name_hash(hash);
+
+		/* remove trailing slashes? */
+		if (!c)
+			goto last_component;
+		while (*++name == '/');
+		if (!*name)
+			goto last_with_slashes;
+
+		/*
+		 * "." and ".." are special - ".." especially so because it has
+		 * to be able to know about the current root directory and
+		 * parent relationships.
+		 */
+		if (this.name[0] == '.') switch (this.len) {
+			default:
+				break;
+			case 2:	
+				if (this.name[1] != '.')
+					break;
+				follow_dotdot(nd);
+				inode = nd->dentry->d_inode;
+				/* fallthrough */
+			case 1:
+				continue;
+		}
+		/*
+		 * See if the low-level filesystem might want
+		 * to use its own hash..
+		 */
+		if (nd->dentry->d_op && nd->dentry->d_op->d_hash) {
+			err = nd->dentry->d_op->d_hash(nd->dentry, &this);
+			if (err < 0)
+				break;
+		}
+		/* This does the actual lookups.. */
+		dentry = cached_lookup(nd->dentry, &this, LOOKUP_CONTINUE);
+		if (!dentry) {
+			dentry = real_lookup(nd->dentry, &this, LOOKUP_CONTINUE);
+			err = PTR_ERR(dentry);
+			if (IS_ERR(dentry))
+				break;
+		}
+		/* Check mountpoints.. */
+		while (d_mountpoint(dentry) && __follow_down(&nd->mnt, &dentry))
+			;
+
+		err = -ENOENT;
+		inode = dentry->d_inode;
+		if (!inode)
+			goto out_dput;
+		err = -ENOTDIR; 
+		if (!inode->i_op)
+			goto out_dput;
+
+		if (inode->i_op->follow_link) {
+			struct vfsmount *mnt = mntget(nd->mnt);
+			err = do_follow_link(dentry, nd);
+			dput(dentry);
+			mntput(mnt);
+			if (err)
+				goto return_err;
+			err = -ENOENT;
+			inode = nd->dentry->d_inode;
+			if (!inode)
+				break;
+			err = -ENOTDIR; 
+			if (!inode->i_op)
+				break;
+		} else {
+			dput(nd->dentry);
+			nd->dentry = dentry;
+		}
+		err = -ENOTDIR; 
+		if (!inode->i_op->lookup)
+			break;
+		continue;
+		/* here ends the main loop */
+
+last_with_slashes:
+		lookup_flags |= LOOKUP_FOLLOW | LOOKUP_DIRECTORY;
+last_component:
+		if (lookup_flags & LOOKUP_PARENT)
+			goto lookup_parent;
+		if (this.name[0] == '.') switch (this.len) {
+			default:
+				break;
+			case 2:	
+				if (this.name[1] != '.')
+					break;
+				follow_dotdot(nd);
+				inode = nd->dentry->d_inode;
+				/* fallthrough */
+			case 1:
+				goto return_reval;
+		}
+		if (nd->dentry->d_op && nd->dentry->d_op->d_hash) {
+			err = nd->dentry->d_op->d_hash(nd->dentry, &this);
+			if (err < 0)
+				break;
+		}
+		dentry = cached_lookup(nd->dentry, &this, nd->flags);
+		if (!dentry) {
+			dentry = real_lookup(nd->dentry, &this, nd->flags);
+			err = PTR_ERR(dentry);
+			if (IS_ERR(dentry))
+				break;
+		}
+		while (d_mountpoint(dentry) && __follow_down(&nd->mnt, &dentry))
+			;
+		inode = dentry->d_inode;
+		if ((lookup_flags & LOOKUP_FOLLOW)
+		    && inode && inode->i_op && inode->i_op->follow_link) {
+			struct vfsmount *mnt = mntget(nd->mnt);
+			err = do_follow_link(dentry, nd);
+			dput(dentry);
+			mntput(mnt);
+			if (err)
+				goto return_err;
+			inode = nd->dentry->d_inode;
+		} else {
+			dput(nd->dentry);
+			nd->dentry = dentry;
+		}
+		err = -ENOENT;
+		if (!inode)
+			goto no_inode;
+		if (lookup_flags & LOOKUP_DIRECTORY) {
+			err = -ENOTDIR; 
+			if (!inode->i_op || !inode->i_op->lookup)
+				break;
+		}
+		goto return_base;
+no_inode:
+		err = -ENOENT;
+		if (lookup_flags & (LOOKUP_POSITIVE|LOOKUP_DIRECTORY))
+			break;
+		goto return_base;
+lookup_parent:
+		nd->last = this;
+		nd->last_type = LAST_NORM;
+		if (this.name[0] != '.')
+			goto return_base;
+		if (this.len == 1)
+			nd->last_type = LAST_DOT;
+		else if (this.len == 2 && this.name[1] == '.')
+			nd->last_type = LAST_DOTDOT;
+		else
+			goto return_base;
+return_reval:
+		/*
+		 * We bypassed the ordinary revalidation routines.
+		 * Check the cached dentry for staleness.
+		 */
+		dentry = nd->dentry;
+		if (dentry && dentry->d_op && dentry->d_op->d_revalidate) {
+			err = -ESTALE;
+			if (!dentry->d_op->d_revalidate(dentry, 0)) {
+				d_invalidate(dentry);
+				break;
+			}
+		}
+return_base:
+		return 0;
+out_dput:
+		dput(dentry);
+		break;
+	}
+	path_release(nd);
+return_err:
+	return err;
+}
+
+int fastcall path_walk(const char * name, struct nameidata *nd)
+{
+	current->total_link_count = 0;
+	return link_path_walk(name, nd);
+}
+
+/* SMP-safe */
+/* returns 1 if everything is done */
+static int __emul_lookup_dentry(const char *name, struct nameidata *nd)
+{
+	if (path_walk(name, nd))
+		return 0;		/* something went wrong... */
+
+	if (!nd->dentry->d_inode || S_ISDIR(nd->dentry->d_inode->i_mode)) {
+		struct nameidata nd_root;
+		/*
+		 * NAME was not found in alternate root or it's a directory.  Try to find
+		 * it in the normal root:
+		 */
+		nd_root.last_type = LAST_ROOT;
+		nd_root.flags = nd->flags;
+		read_lock(&current->fs->lock);
+		nd_root.mnt = mntget(current->fs->rootmnt);
+		nd_root.dentry = dget(current->fs->root);
+		read_unlock(&current->fs->lock);
+		if (path_walk(name, &nd_root))
+			return 1;
+		if (nd_root.dentry->d_inode) {
+			path_release(nd);
+			nd->dentry = nd_root.dentry;
+			nd->mnt = nd_root.mnt;
+			nd->last = nd_root.last;
+			return 1;
+		}
+		path_release(&nd_root);
+	}
+	return 1;
+}
+
+void set_fs_altroot(void)
+{
+	char *emul = __emul_prefix();
+	struct nameidata nd;
+	struct vfsmount *mnt = NULL, *oldmnt;
+	struct dentry *dentry = NULL, *olddentry;
+	if (emul) {
+		read_lock(&current->fs->lock);
+		nd.mnt = mntget(current->fs->rootmnt);
+		nd.dentry = dget(current->fs->root);
+		read_unlock(&current->fs->lock);
+		nd.flags = LOOKUP_FOLLOW|LOOKUP_DIRECTORY|LOOKUP_POSITIVE;
+		if (path_walk(emul,&nd) == 0) {
+			mnt = nd.mnt;
+			dentry = nd.dentry;
+		}
+	}
+	write_lock(&current->fs->lock);
+	oldmnt = current->fs->altrootmnt;
+	olddentry = current->fs->altroot;
+	current->fs->altrootmnt = mnt;
+	current->fs->altroot = dentry;
+	write_unlock(&current->fs->lock);
+	if (olddentry) {
+		dput(olddentry);
+		mntput(oldmnt);
+	}
+}
+
+/* SMP-safe */
+static inline int
+walk_init_root(const char *name, struct nameidata *nd)
+{
+	read_lock(&current->fs->lock);
+	if (current->fs->altroot && !(nd->flags & LOOKUP_NOALT)) {
+		nd->mnt = mntget(current->fs->altrootmnt);
+		nd->dentry = dget(current->fs->altroot);
+		read_unlock(&current->fs->lock);
+		if (__emul_lookup_dentry(name,nd))
+			return 0;
+		read_lock(&current->fs->lock);
+	}
+	nd->mnt = mntget(current->fs->rootmnt);
+	nd->dentry = dget(current->fs->root);
+	read_unlock(&current->fs->lock);
+	return 1;
+}
+
+/* SMP-safe */
+int fastcall path_lookup(const char *path, unsigned flags, struct nameidata *nd)
+{
+	int error = 0;
+	if (path_init(path, flags, nd))
+		error = path_walk(path, nd);
+	return error;
+}
+
+
+/* SMP-safe */
+int fastcall path_init(const char *name, unsigned int flags, struct nameidata *nd)
+{
+	nd->last_type = LAST_ROOT; /* if there are only slashes... */
+	nd->flags = flags;
+	if (*name=='/')
+		return walk_init_root(name,nd);
+	read_lock(&current->fs->lock);
+	nd->mnt = mntget(current->fs->pwdmnt);
+	nd->dentry = dget(current->fs->pwd);
+	read_unlock(&current->fs->lock);
+	return 1;
+}
+
+/*
+ * Restricted form of lookup. Doesn't follow links, single-component only,
+ * needs parent already locked. Doesn't follow mounts.
+ * SMP-safe.
+ */
+struct dentry * lookup_hash(struct qstr *name, struct dentry * base)
+{
+	struct dentry * dentry;
+	struct inode *inode;
+	int err;
+
+	inode = base->d_inode;
+	err = permission(inode, MAY_EXEC);
+	dentry = ERR_PTR(err);
+	if (err)
+		goto out;
+
+	/*
+	 * See if the low-level filesystem might want
+	 * to use its own hash..
+	 */
+	if (base->d_op && base->d_op->d_hash) {
+		err = base->d_op->d_hash(base, name);
+		dentry = ERR_PTR(err);
+		if (err < 0)
+			goto out;
+	}
+
+	dentry = cached_lookup(base, name, 0);
+	if (!dentry) {
+		struct dentry *new = d_alloc(base, name);
+		dentry = ERR_PTR(-ENOMEM);
+		if (!new)
+			goto out;
+		lock_kernel();
+		dentry = inode->i_op->lookup(inode, new);
+		unlock_kernel();
+		if (!dentry)
+			dentry = new;
+		else
+			dput(new);
+	}
+out:
+	return dentry;
+}
+
+/* SMP-safe */
+struct dentry * lookup_one_len(const char * name, struct dentry * base, int len)
+{
+	unsigned long hash;
+	struct qstr this;
+	unsigned int c;
+
+	this.name = name;
+	this.len = len;
+	if (!len)
+		goto access;
+
+	hash = init_name_hash();
+	while (len--) {
+		c = *(const unsigned char *)name++;
+		if (c == '/' || c == '\0')
+			goto access;
+		hash = partial_name_hash(c, hash);
+	}
+	this.hash = end_name_hash(hash);
+
+	return lookup_hash(&this, base);
+access:
+	return ERR_PTR(-EACCES);
+}
+
+/*
+ *	namei()
+ *
+ * is used by most simple commands to get the inode of a specified name.
+ * Open, link etc use their own routines, but this is enough for things
+ * like 'chmod' etc.
+ *
+ * namei exists in two versions: namei/lnamei. The only difference is
+ * that namei follows links, while lnamei does not.
+ * SMP-safe
+ */
+int fastcall __user_walk(const char *name, unsigned flags, struct nameidata *nd)
+{
+	char *tmp;
+	int err;
+
+	tmp = getname(name);
+	err = PTR_ERR(tmp);
+	if (!IS_ERR(tmp)) {
+		err = 0;
+		err = path_lookup(tmp, flags, nd);
+		putname(tmp);
+	}
+	return err;
+}
+
+/*
+ * It's inline, so penalty for filesystems that don't use sticky bit is
+ * minimal.
+ */
+static inline int check_sticky(struct inode *dir, struct inode *inode)
+{
+	if (!(dir->i_mode & S_ISVTX))
+		return 0;
+	if (inode->i_uid == current->fsuid)
+		return 0;
+	if (dir->i_uid == current->fsuid)
+		return 0;
+	return !capable(CAP_FOWNER);
+}
+
+/*
+ *	Check whether we can remove a link victim from directory dir, check
+ *  whether the type of victim is right.
+ *  1. We can't do it if dir is read-only (done in permission())
+ *  2. We should have write and exec permissions on dir
+ *  3. We can't remove anything from append-only dir
+ *  4. We can't do anything with immutable dir (done in permission())
+ *  5. If the sticky bit on dir is set we should either
+ *	a. be owner of dir, or
+ *	b. be owner of victim, or
+ *	c. have CAP_FOWNER capability
+ *  6. If the victim is append-only or immutable we can't do antyhing with
+ *     links pointing to it.
+ *  7. If we were asked to remove a directory and victim isn't one - ENOTDIR.
+ *  8. If we were asked to remove a non-directory and victim isn't one - EISDIR.
+ *  9. We can't remove a root or mountpoint.
+ */
+static inline int may_delete(struct inode *dir,struct dentry *victim, int isdir)
+{
+	int error;
+	if (!victim->d_inode || victim->d_parent->d_inode != dir)
+		return -ENOENT;
+	error = permission(dir,MAY_WRITE | MAY_EXEC);
+	if (error)
+		return error;
+	if (IS_APPEND(dir))
+		return -EPERM;
+	if (check_sticky(dir, victim->d_inode)||IS_APPEND(victim->d_inode)||
+	    IS_IMMUTABLE(victim->d_inode))
+		return -EPERM;
+	if (isdir) {
+		if (!S_ISDIR(victim->d_inode->i_mode))
+			return -ENOTDIR;
+		if (IS_ROOT(victim))
+			return -EBUSY;
+	} else if (S_ISDIR(victim->d_inode->i_mode))
+		return -EISDIR;
+	if (IS_DEADDIR(dir))
+		return -ENOENT;
+	return 0;
+}
+
+/*	Check whether we can create an object with dentry child in directory
+ *  dir.
+ *  1. We can't do it if child already exists (open has special treatment for
+ *     this case, but since we are inlined it's OK)
+ *  2. We can't do it if dir is read-only (done in permission())
+ *  3. We should have write and exec permissions on dir
+ *  4. We can't do it if dir is immutable (done in permission())
+ */
+static inline int may_create(struct inode *dir, struct dentry *child) {
+	if (child->d_inode)
+		return -EEXIST;
+	if (IS_DEADDIR(dir))
+		return -ENOENT;
+	return permission(dir,MAY_WRITE | MAY_EXEC);
+}
+
+/* 
+ * Special case: O_CREAT|O_EXCL implies O_NOFOLLOW for security
+ * reasons.
+ *
+ * O_DIRECTORY translates into forcing a directory lookup.
+ */
+static inline int lookup_flags(unsigned int f)
+{
+	unsigned long retval = LOOKUP_FOLLOW;
+
+	if (f & O_NOFOLLOW)
+		retval &= ~LOOKUP_FOLLOW;
+	
+	if ((f & (O_CREAT|O_EXCL)) == (O_CREAT|O_EXCL))
+		retval &= ~LOOKUP_FOLLOW;
+	
+	if (f & O_DIRECTORY)
+		retval |= LOOKUP_DIRECTORY;
+
+	return retval;
+}
+
+int vfs_create(struct inode *dir, struct dentry *dentry, int mode)
+{
+	int error;
+
+	mode &= S_IALLUGO;
+	mode |= S_IFREG;
+
+	down(&dir->i_zombie);
+	error = may_create(dir, dentry);
+	if (error)
+		goto exit_lock;
+
+	error = -EACCES;	/* shouldn't it be ENOSYS? */
+	if (!dir->i_op || !dir->i_op->create)
+		goto exit_lock;
+
+	DQUOT_INIT(dir);
+	lock_kernel();
+	error = dir->i_op->create(dir, dentry, mode);
+	unlock_kernel();
+exit_lock:
+	up(&dir->i_zombie);
+	if (!error)
+		inode_dir_notify(dir, DN_CREATE);
+	return error;
+}
+
+/*
+ *	open_namei()
+ *
+ * namei for open - this is in fact almost the whole open-routine.
+ *
+ * Note that the low bits of "flag" aren't the same as in the open
+ * system call - they are 00 - no permissions needed
+ *			  01 - read permission needed
+ *			  10 - write permission needed
+ *			  11 - read/write permissions needed
+ * which is a lot more logical, and also allows the "no perm" needed
+ * for symlinks (where the permissions are checked later).
+ * SMP-safe
+ */
+int open_namei(const char * pathname, int flag, int mode, struct nameidata *nd)
+{
+	int acc_mode, error = 0;
+	struct inode *inode;
+	struct dentry *dentry;
+	struct vfsmount *mnt;
+	struct dentry *dir;
+	int count = 0;
+
+	acc_mode = ACC_MODE(flag);
+
+	/*
+	 * The simplest case - just a plain lookup.
+	 */
+	if (!(flag & O_CREAT)) {
+		error = path_lookup(pathname, lookup_flags(flag), nd);
+		if (error)
+			return error;
+		dentry = nd->dentry;
+		goto ok;
+	}
+
+	/*
+	 * Create - we need to know the parent.
+	 */
+	error = path_lookup(pathname, LOOKUP_PARENT, nd);
+	if (error)
+		return error;
+
+	/*
+	 * We have the parent and last component. First of all, check
+	 * that we are not asked to creat(2) an obvious directory - that
+	 * will not do.
+	 */
+	error = -EISDIR;
+	if (nd->last_type != LAST_NORM || nd->last.name[nd->last.len])
+		goto exit;
+
+	dir = nd->dentry;
+	down(&dir->d_inode->i_sem);
+	dentry = lookup_hash(&nd->last, nd->dentry);
+
+do_last:
+	error = PTR_ERR(dentry);
+	if (IS_ERR(dentry)) {
+		up(&dir->d_inode->i_sem);
+		goto exit;
+	}
+
+	/* Negative dentry, just create the file */
+	if (!dentry->d_inode) {
+		error = vfs_create(dir->d_inode, dentry,
+				   mode & ~current->fs->umask);
+		up(&dir->d_inode->i_sem);
+		dput(nd->dentry);
+		nd->dentry = dentry;
+		if (error)
+			goto exit;
+		/* Don't check for write permission, don't truncate */
+		acc_mode = 0;
+		flag &= ~O_TRUNC;
+		goto ok;
+	}
+
+	/*
+	 * It already exists.
+	 */
+	up(&dir->d_inode->i_sem);
+
+	error = -EEXIST;
+	if (flag & O_EXCL)
+		goto exit_dput;
+
+	if (d_mountpoint(dentry)) {
+		error = -ELOOP;
+		if (flag & O_NOFOLLOW)
+			goto exit_dput;
+		while (__follow_down(&nd->mnt,&dentry) && d_mountpoint(dentry));
+	}
+	error = -ENOENT;
+	if (!dentry->d_inode)
+		goto exit_dput;
+	if (dentry->d_inode->i_op && dentry->d_inode->i_op->follow_link)
+		goto do_link;
+
+	dput(nd->dentry);
+	nd->dentry = dentry;
+	error = -EISDIR;
+	if (dentry->d_inode && S_ISDIR(dentry->d_inode->i_mode))
+		goto exit;
+ok:
+	error = -ENOENT;
+	inode = dentry->d_inode;
+	if (!inode)
+		goto exit;
+
+	error = -ELOOP;
+	if (S_ISLNK(inode->i_mode))
+		goto exit;
+	
+	error = -EISDIR;
+	if (S_ISDIR(inode->i_mode) && (flag & FMODE_WRITE))
+		goto exit;
+
+	error = permission(inode,acc_mode);
+	if (error)
+		goto exit;
+
+	/*
+	 * FIFO's, sockets and device files are special: they don't
+	 * actually live on the filesystem itself, and as such you
+	 * can write to them even if the filesystem is read-only.
+	 */
+	if (S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
+	    	flag &= ~O_TRUNC;
+	} else if (S_ISBLK(inode->i_mode) || S_ISCHR(inode->i_mode)) {
+		error = -EACCES;
+		if (nd->mnt->mnt_flags & MNT_NODEV)
+			goto exit;
+
+		flag &= ~O_TRUNC;
+	} else {
+		error = -EROFS;
+		if (IS_RDONLY(inode) && (flag & 2))
+			goto exit;
+	}
+	/*
+	 * An append-only file must be opened in append mode for writing.
+	 */
+	error = -EPERM;
+	if (IS_APPEND(inode)) {
+		if  ((flag & FMODE_WRITE) && !(flag & O_APPEND))
+			goto exit;
+		if (flag & O_TRUNC)
+			goto exit;
+	}
+
+	/*
+	 * Ensure there are no outstanding leases on the file.
+	 */
+	error = get_lease(inode, flag);
+	if (error)
+		goto exit;
+
+	if (flag & O_TRUNC) {
+		error = get_write_access(inode);
+		if (error)
+			goto exit;
+
+		/*
+		 * Refuse to truncate files with mandatory locks held on them.
+		 */
+		error = locks_verify_locked(inode);
+		if (!error) {
+			DQUOT_INIT(inode);
+			
+			error = do_truncate(dentry, 0);
+		}
+		put_write_access(inode);
+		if (error)
+			goto exit;
+	} else
+		if (flag & FMODE_WRITE)
+			DQUOT_INIT(inode);
+
+	return 0;
+
+exit_dput:
+	dput(dentry);
+exit:
+	path_release(nd);
+	return error;
+
+do_link:
+	error = -ELOOP;
+	if (flag & O_NOFOLLOW)
+		goto exit_dput;
+	/*
+	 * This is subtle. Instead of calling do_follow_link() we do the
+	 * thing by hands. The reason is that this way we have zero link_count
+	 * and path_walk() (called from ->follow_link) honoring LOOKUP_PARENT.
+	 * After that we have the parent and last component, i.e.
+	 * we are in the same situation as after the first path_walk().
+	 * Well, almost - if the last component is normal we get its copy
+	 * stored in nd->last.name and we will have to putname() it when we
+	 * are done. Procfs-like symlinks just set LAST_BIND.
+	 */
+	UPDATE_ATIME(dentry->d_inode);
+	mnt = mntget(nd->mnt);
+	error = dentry->d_inode->i_op->follow_link(dentry, nd);
+	dput(dentry);
+	mntput(mnt);
+	if (error)
+		return error;
+	if (nd->last_type == LAST_BIND) {
+		dentry = nd->dentry;
+		goto ok;
+	}
+	error = -EISDIR;
+	if (nd->last_type != LAST_NORM)
+		goto exit;
+	if (nd->last.name[nd->last.len]) {
+		putname(nd->last.name);
+		goto exit;
+	}
+	error = -ELOOP;
+	if (count++==32) {
+		putname(nd->last.name);
+		goto exit;
+	}
+	dir = nd->dentry;
+	down(&dir->d_inode->i_sem);
+	dentry = lookup_hash(&nd->last, nd->dentry);
+	putname(nd->last.name);
+	goto do_last;
+}
+
+/* SMP-safe */
+static struct dentry *lookup_create(struct nameidata *nd, int is_dir)
+{
+	struct dentry *dentry;
+
+	down(&nd->dentry->d_inode->i_sem);
+	dentry = ERR_PTR(-EEXIST);
+	if (nd->last_type != LAST_NORM)
+		goto fail;
+	dentry = lookup_hash(&nd->last, nd->dentry);
+	if (IS_ERR(dentry))
+		goto fail;
+	if (!is_dir && nd->last.name[nd->last.len] && !dentry->d_inode)
+		goto enoent;
+	return dentry;
+enoent:
+	dput(dentry);
+	dentry = ERR_PTR(-ENOENT);
+fail:
+	return dentry;
+}
+
+int vfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
+{
+	int error = -EPERM;
+
+	down(&dir->i_zombie);
+	if ((S_ISCHR(mode) || S_ISBLK(mode)) && !capable(CAP_MKNOD))
+		goto exit_lock;
+
+	error = may_create(dir, dentry);
+	if (error)
+		goto exit_lock;
+
+	error = -EPERM;
+	if (!dir->i_op || !dir->i_op->mknod)
+		goto exit_lock;
+
+	DQUOT_INIT(dir);
+	lock_kernel();
+	error = dir->i_op->mknod(dir, dentry, mode, dev);
+	unlock_kernel();
+exit_lock:
+	up(&dir->i_zombie);
+	if (!error)
+		inode_dir_notify(dir, DN_CREATE);
+	return error;
+}
+
+asmlinkage long sys_mknod(const char * filename, int mode, dev_t dev)
+{
+	int error = 0;
+	char * tmp;
+	struct dentry * dentry;
+	struct nameidata nd;
+
+	if (S_ISDIR(mode))
+		return -EPERM;
+	tmp = getname(filename);
+	if (IS_ERR(tmp))
+		return PTR_ERR(tmp);
+
+	error = path_lookup(tmp, LOOKUP_PARENT, &nd);
+	if (error)
+		goto out;
+	dentry = lookup_create(&nd, 0);
+	error = PTR_ERR(dentry);
+
+	mode &= ~current->fs->umask;
+	if (!IS_ERR(dentry)) {
+		switch (mode & S_IFMT) {
+		case 0: case S_IFREG:
+			error = vfs_create(nd.dentry->d_inode,dentry,mode);
+			break;
+		case S_IFCHR: case S_IFBLK: case S_IFIFO: case S_IFSOCK:
+			error = vfs_mknod(nd.dentry->d_inode,dentry,mode,dev);
+			break;
+		case S_IFDIR:
+			error = -EPERM;
+			break;
+		default:
+			error = -EINVAL;
+		}
+		dput(dentry);
+	}
+	up(&nd.dentry->d_inode->i_sem);
+	path_release(&nd);
+out:
+	putname(tmp);
+
+	return error;
+}
+
+int vfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+{
+	int error;
+
+	down(&dir->i_zombie);
+	error = may_create(dir, dentry);
+	if (error)
+		goto exit_lock;
+
+	error = -EPERM;
+	if (!dir->i_op || !dir->i_op->mkdir)
+		goto exit_lock;
+
+	DQUOT_INIT(dir);
+	mode &= (S_IRWXUGO|S_ISVTX);
+	lock_kernel();
+	error = dir->i_op->mkdir(dir, dentry, mode);
+	unlock_kernel();
+
+exit_lock:
+	up(&dir->i_zombie);
+	if (!error)
+		inode_dir_notify(dir, DN_CREATE);
+	return error;
+}
+
+asmlinkage long sys_mkdir(const char * pathname, int mode)
+{
+	int error = 0;
+	char * tmp;
+
+	tmp = getname(pathname);
+	error = PTR_ERR(tmp);
+	if (!IS_ERR(tmp)) {
+		struct dentry *dentry;
+		struct nameidata nd;
+
+		error = path_lookup(tmp, LOOKUP_PARENT, &nd);
+		if (error)
+			goto out;
+		dentry = lookup_create(&nd, 1);
+		error = PTR_ERR(dentry);
+		if (!IS_ERR(dentry)) {
+			error = vfs_mkdir(nd.dentry->d_inode, dentry,
+					  mode & ~current->fs->umask);
+			dput(dentry);
+		}
+		up(&nd.dentry->d_inode->i_sem);
+		path_release(&nd);
+out:
+		putname(tmp);
+	}
+
+	return error;
+}
+
+/*
+ * We try to drop the dentry early: we should have
+ * a usage count of 2 if we're the only user of this
+ * dentry, and if that is true (possibly after pruning
+ * the dcache), then we drop the dentry now.
+ *
+ * A low-level filesystem can, if it choses, legally
+ * do a
+ *
+ *	if (!d_unhashed(dentry))
+ *		return -EBUSY;
+ *
+ * if it cannot handle the case of removing a directory
+ * that is still in use by something else..
+ */
+static void d_unhash(struct dentry *dentry)
+{
+	dget(dentry);
+	spin_lock(&dcache_lock);
+	switch (atomic_read(&dentry->d_count)) {
+	default:
+		spin_unlock(&dcache_lock);
+		shrink_dcache_parent(dentry);
+		spin_lock(&dcache_lock);
+		if (atomic_read(&dentry->d_count) != 2)
+			break;
+	case 2:
+		list_del_init(&dentry->d_hash);
+	}
+	spin_unlock(&dcache_lock);
+}
+
+int vfs_rmdir(struct inode *dir, struct dentry *dentry)
+{
+	int error;
+
+	error = may_delete(dir, dentry, 1);
+	if (error)
+		return error;
+
+	if (!dir->i_op || !dir->i_op->rmdir)
+		return -EPERM;
+
+	DQUOT_INIT(dir);
+
+	double_down(&dir->i_zombie, &dentry->d_inode->i_zombie);
+	d_unhash(dentry);
+	if (d_mountpoint(dentry))
+		error = -EBUSY;
+	else {
+		lock_kernel();
+		error = dir->i_op->rmdir(dir, dentry);
+		unlock_kernel();
+		if (!error)
+			dentry->d_inode->i_flags |= S_DEAD;
+	}
+	double_up(&dir->i_zombie, &dentry->d_inode->i_zombie);
+	if (!error) {
+		inode_dir_notify(dir, DN_DELETE);
+		d_delete(dentry);
+	}
+	dput(dentry);
+
+	return error;
+}
+
+asmlinkage long sys_rmdir(const char * pathname)
+{
+	int error = 0;
+	char * name;
+	struct dentry *dentry;
+	struct nameidata nd;
+
+	name = getname(pathname);
+	if(IS_ERR(name))
+		return PTR_ERR(name);
+
+	error = path_lookup(name, LOOKUP_PARENT, &nd);
+	if (error)
+		goto exit;
+
+	switch(nd.last_type) {
+		case LAST_DOTDOT:
+			error = -ENOTEMPTY;
+			goto exit1;
+		case LAST_DOT:
+			error = -EINVAL;
+			goto exit1;
+		case LAST_ROOT:
+			error = -EBUSY;
+			goto exit1;
+	}
+	down(&nd.dentry->d_inode->i_sem);
+	dentry = lookup_hash(&nd.last, nd.dentry);
+	error = PTR_ERR(dentry);
+	if (!IS_ERR(dentry)) {
+		error = vfs_rmdir(nd.dentry->d_inode, dentry);
+		dput(dentry);
+	}
+	up(&nd.dentry->d_inode->i_sem);
+exit1:
+	path_release(&nd);
+exit:
+	putname(name);
+	return error;
+}
+
+int vfs_unlink(struct inode *dir, struct dentry *dentry)
+{
+	int error;
+
+	down(&dir->i_zombie);
+	error = may_delete(dir, dentry, 0);
+	if (!error) {
+		error = -EPERM;
+		if (dir->i_op && dir->i_op->unlink) {
+			DQUOT_INIT(dir);
+			if (d_mountpoint(dentry))
+				error = -EBUSY;
+			else {
+				lock_kernel();
+				error = dir->i_op->unlink(dir, dentry);
+				unlock_kernel();
+				if (!error)
+					d_delete(dentry);
+			}
+		}
+	}
+	up(&dir->i_zombie);
+	if (!error)
+		inode_dir_notify(dir, DN_DELETE);
+	return error;
+}
+
+asmlinkage long sys_unlink(const char * pathname)
+{
+	int error = 0;
+	char * name;
+	struct dentry *dentry;
+	struct nameidata nd;
+
+	name = getname(pathname);
+	if(IS_ERR(name))
+		return PTR_ERR(name);
+
+	error = path_lookup(name, LOOKUP_PARENT, &nd);
+	if (error)
+		goto exit;
+	error = -EISDIR;
+	if (nd.last_type != LAST_NORM)
+		goto exit1;
+	down(&nd.dentry->d_inode->i_sem);
+	dentry = lookup_hash(&nd.last, nd.dentry);
+	error = PTR_ERR(dentry);
+	if (!IS_ERR(dentry)) {
+		/* Why not before? Because we want correct error value */
+		if (nd.last.name[nd.last.len])
+			goto slashes;
+		error = vfs_unlink(nd.dentry->d_inode, dentry);
+	exit2:
+		dput(dentry);
+	}
+	up(&nd.dentry->d_inode->i_sem);
+exit1:
+	path_release(&nd);
+exit:
+	putname(name);
+
+	return error;
+
+slashes:
+	error = !dentry->d_inode ? -ENOENT :
+		S_ISDIR(dentry->d_inode->i_mode) ? -EISDIR : -ENOTDIR;
+	goto exit2;
+}
+
+int vfs_symlink(struct inode *dir, struct dentry *dentry, const char *oldname)
+{
+	int error;
+
+	down(&dir->i_zombie);
+	error = may_create(dir, dentry);
+	if (error)
+		goto exit_lock;
+
+	error = -EPERM;
+	if (!dir->i_op || !dir->i_op->symlink)
+		goto exit_lock;
+
+	DQUOT_INIT(dir);
+	lock_kernel();
+	error = dir->i_op->symlink(dir, dentry, oldname);
+	unlock_kernel();
+
+exit_lock:
+	up(&dir->i_zombie);
+	if (!error)
+		inode_dir_notify(dir, DN_CREATE);
+	return error;
+}
+
+asmlinkage long sys_symlink(const char * oldname, const char * newname)
+{
+	int error = 0;
+	char * from;
+	char * to;
+
+	from = getname(oldname);
+	if(IS_ERR(from))
+		return PTR_ERR(from);
+	to = getname(newname);
+	error = PTR_ERR(to);
+	if (!IS_ERR(to)) {
+		struct dentry *dentry;
+		struct nameidata nd;
+
+		error = path_lookup(to, LOOKUP_PARENT, &nd);
+		if (error)
+			goto out;
+		dentry = lookup_create(&nd, 0);
+		error = PTR_ERR(dentry);
+		if (!IS_ERR(dentry)) {
+			error = vfs_symlink(nd.dentry->d_inode, dentry, from);
+			dput(dentry);
+		}
+		up(&nd.dentry->d_inode->i_sem);
+		path_release(&nd);
+out:
+		putname(to);
+	}
+	putname(from);
+	return error;
+}
+
+int vfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *new_dentry)
+{
+	struct inode *inode;
+	int error;
+
+	down(&dir->i_zombie);
+	error = -ENOENT;
+	inode = old_dentry->d_inode;
+	if (!inode)
+		goto exit_lock;
+
+	error = may_create(dir, new_dentry);
+	if (error)
+		goto exit_lock;
+
+	error = -EXDEV;
+	if (dir->i_dev != inode->i_dev)
+		goto exit_lock;
+
+	/*
+	 * A link to an append-only or immutable file cannot be created.
+	 */
+	error = -EPERM;
+	if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
+		goto exit_lock;
+	if (!dir->i_op || !dir->i_op->link)
+		goto exit_lock;
+
+	DQUOT_INIT(dir);
+	lock_kernel();
+	error = dir->i_op->link(old_dentry, dir, new_dentry);
+	unlock_kernel();
+
+exit_lock:
+	up(&dir->i_zombie);
+	if (!error)
+		inode_dir_notify(dir, DN_CREATE);
+	return error;
+}
+
+/*
+ * Hardlinks are often used in delicate situations.  We avoid
+ * security-related surprises by not following symlinks on the
+ * newname.  --KAB
+ *
+ * We don't follow them on the oldname either to be compatible
+ * with linux 2.0, and to avoid hard-linking to directories
+ * and other special files.  --ADM
+ */
+asmlinkage long sys_link(const char * oldname, const char * newname)
+{
+	int error;
+	char * to;
+
+	to = getname(newname);
+	error = PTR_ERR(to);
+	if (!IS_ERR(to)) {
+		struct dentry *new_dentry;
+		struct nameidata nd, old_nd;
+
+		error = __user_walk(oldname, LOOKUP_POSITIVE, &old_nd);
+		if (error)
+			goto exit;
+		error = path_lookup(to, LOOKUP_PARENT, &nd);
+		if (error)
+			goto out;
+		error = -EXDEV;
+		if (old_nd.mnt != nd.mnt)
+			goto out_release;
+		new_dentry = lookup_create(&nd, 0);
+		error = PTR_ERR(new_dentry);
+		if (!IS_ERR(new_dentry)) {
+			error = vfs_link(old_nd.dentry, nd.dentry->d_inode, new_dentry);
+			dput(new_dentry);
+		}
+		up(&nd.dentry->d_inode->i_sem);
+out_release:
+		path_release(&nd);
+out:
+		path_release(&old_nd);
+exit:
+		putname(to);
+	}
+	return error;
+}
+
+/*
+ * The worst of all namespace operations - renaming directory. "Perverted"
+ * doesn't even start to describe it. Somebody in UCB had a heck of a trip...
+ * Problems:
+ *	a) we can get into loop creation. Check is done in is_subdir().
+ *	b) race potential - two innocent renames can create a loop together.
+ *	   That's where 4.4 screws up. Current fix: serialization on
+ *	   sb->s_vfs_rename_sem. We might be more accurate, but that's another
+ *	   story.
+ *	c) we have to lock _three_ objects - parents and victim (if it exists).
+ *	   And that - after we got ->i_sem on parents (until then we don't know
+ *	   whether the target exists at all, let alone whether it is a directory
+ *	   or not). Solution: ->i_zombie. Taken only after ->i_sem. Always taken
+ *	   on link creation/removal of any kind. And taken (without ->i_sem) on
+ *	   directory that will be removed (both in rmdir() and here).
+ *	d) some filesystems don't support opened-but-unlinked directories,
+ *	   either because of layout or because they are not ready to deal with
+ *	   all cases correctly. The latter will be fixed (taking this sort of
+ *	   stuff into VFS), but the former is not going away. Solution: the same
+ *	   trick as in rmdir().
+ *	e) conversion from fhandle to dentry may come in the wrong moment - when
+ *	   we are removing the target. Solution: we will have to grab ->i_zombie
+ *	   in the fhandle_to_dentry code. [FIXME - current nfsfh.c relies on
+ *	   ->i_sem on parents, which works but leads to some truely excessive
+ *	   locking].
+ */
+int vfs_rename_dir(struct inode *old_dir, struct dentry *old_dentry,
+	       struct inode *new_dir, struct dentry *new_dentry)
+{
+	int error;
+	struct inode *target;
+
+	if (old_dentry->d_inode == new_dentry->d_inode)
+		return 0;
+
+	error = may_delete(old_dir, old_dentry, 1);
+	if (error)
+		return error;
+
+	if (new_dir->i_dev != old_dir->i_dev)
+		return -EXDEV;
+
+	if (!new_dentry->d_inode)
+		error = may_create(new_dir, new_dentry);
+	else
+		error = may_delete(new_dir, new_dentry, 1);
+	if (error)
+		return error;
+
+	if (!old_dir->i_op || !old_dir->i_op->rename)
+		return -EPERM;
+
+	/*
+	 * If we are going to change the parent - check write permissions,
+	 * we'll need to flip '..'.
+	 */
+	if (new_dir != old_dir) {
+		error = permission(old_dentry->d_inode, MAY_WRITE);
+	}
+	if (error)
+		return error;
+
+	DQUOT_INIT(old_dir);
+	DQUOT_INIT(new_dir);
+	down(&old_dir->i_sb->s_vfs_rename_sem);
+	error = -EINVAL;
+	if (is_subdir(new_dentry, old_dentry))
+		goto out_unlock;
+	/* Don't eat your daddy, dear... */
+	/* This also avoids locking issues */
+	if (old_dentry->d_parent == new_dentry)
+		goto out_unlock;
+	target = new_dentry->d_inode;
+	if (target) { /* Hastur! Hastur! Hastur! */
+		triple_down(&old_dir->i_zombie,
+			    &new_dir->i_zombie,
+			    &target->i_zombie);
+		d_unhash(new_dentry);
+	} else
+		double_down(&old_dir->i_zombie,
+			    &new_dir->i_zombie);
+	if (d_mountpoint(old_dentry)||d_mountpoint(new_dentry))
+		error = -EBUSY;
+	else 
+		error = old_dir->i_op->rename(old_dir, old_dentry, new_dir, new_dentry);
+	if (target) {
+		if (!error)
+			target->i_flags |= S_DEAD;
+		triple_up(&old_dir->i_zombie,
+			  &new_dir->i_zombie,
+			  &target->i_zombie);
+		if (d_unhashed(new_dentry))
+			d_rehash(new_dentry);
+		dput(new_dentry);
+	} else
+		double_up(&old_dir->i_zombie,
+			  &new_dir->i_zombie);
+		
+	if (!error)
+		d_move(old_dentry,new_dentry);
+out_unlock:
+	up(&old_dir->i_sb->s_vfs_rename_sem);
+	return error;
+}
+
+int vfs_rename_other(struct inode *old_dir, struct dentry *old_dentry,
+	       struct inode *new_dir, struct dentry *new_dentry)
+{
+	int error;
+
+	if (old_dentry->d_inode == new_dentry->d_inode)
+		return 0;
+
+	error = may_delete(old_dir, old_dentry, 0);
+	if (error)
+		return error;
+
+	if (new_dir->i_dev != old_dir->i_dev)
+		return -EXDEV;
+
+	if (!new_dentry->d_inode)
+		error = may_create(new_dir, new_dentry);
+	else
+		error = may_delete(new_dir, new_dentry, 0);
+	if (error)
+		return error;
+
+	if (!old_dir->i_op || !old_dir->i_op->rename)
+		return -EPERM;
+
+	DQUOT_INIT(old_dir);
+	DQUOT_INIT(new_dir);
+	double_down(&old_dir->i_zombie, &new_dir->i_zombie);
+	if (d_mountpoint(old_dentry)||d_mountpoint(new_dentry))
+		error = -EBUSY;
+	else
+		error = old_dir->i_op->rename(old_dir, old_dentry, new_dir, new_dentry);
+	double_up(&old_dir->i_zombie, &new_dir->i_zombie);
+	if (error)
+		return error;
+	/* The following d_move() should become unconditional */
+	if (!(old_dir->i_sb->s_type->fs_flags & FS_ODD_RENAME)) {
+		d_move(old_dentry, new_dentry);
+	}
+	return 0;
+}
+
+int vfs_rename(struct inode *old_dir, struct dentry *old_dentry,
+	       struct inode *new_dir, struct dentry *new_dentry)
+{
+	int error;
+	if (S_ISDIR(old_dentry->d_inode->i_mode))
+		error = vfs_rename_dir(old_dir,old_dentry,new_dir,new_dentry);
+	else
+		error = vfs_rename_other(old_dir,old_dentry,new_dir,new_dentry);
+	if (!error) {
+		if (old_dir == new_dir)
+			inode_dir_notify(old_dir, DN_RENAME);
+		else {
+			inode_dir_notify(old_dir, DN_DELETE);
+			inode_dir_notify(new_dir, DN_CREATE);
+		}
+	}
+	return error;
+}
+
+static inline int do_rename(const char * oldname, const char * newname)
+{
+	int error = 0;
+	struct dentry * old_dir, * new_dir;
+	struct dentry * old_dentry, *new_dentry;
+	struct nameidata oldnd, newnd;
+
+	error = path_lookup(oldname, LOOKUP_PARENT, &oldnd);
+	if (error)
+		goto exit;
+
+	error = path_lookup(newname, LOOKUP_PARENT, &newnd);
+	if (error)
+		goto exit1;
+
+	error = -EXDEV;
+	if (oldnd.mnt != newnd.mnt)
+		goto exit2;
+
+	old_dir = oldnd.dentry;
+	error = -EBUSY;
+	if (oldnd.last_type != LAST_NORM)
+		goto exit2;
+
+	new_dir = newnd.dentry;
+	if (newnd.last_type != LAST_NORM)
+		goto exit2;
+
+	double_lock(new_dir, old_dir);
+
+	old_dentry = lookup_hash(&oldnd.last, old_dir);
+	error = PTR_ERR(old_dentry);
+	if (IS_ERR(old_dentry))
+		goto exit3;
+	/* source must exist */
+	error = -ENOENT;
+	if (!old_dentry->d_inode)
+		goto exit4;
+	/* unless the source is a directory trailing slashes give -ENOTDIR */
+	if (!S_ISDIR(old_dentry->d_inode->i_mode)) {
+		error = -ENOTDIR;
+		if (oldnd.last.name[oldnd.last.len])
+			goto exit4;
+		if (newnd.last.name[newnd.last.len])
+			goto exit4;
+	}
+	new_dentry = lookup_hash(&newnd.last, new_dir);
+	error = PTR_ERR(new_dentry);
+	if (IS_ERR(new_dentry))
+		goto exit4;
+
+	lock_kernel();
+	error = vfs_rename(old_dir->d_inode, old_dentry,
+				   new_dir->d_inode, new_dentry);
+	unlock_kernel();
+
+	dput(new_dentry);
+exit4:
+	dput(old_dentry);
+exit3:
+	double_up(&new_dir->d_inode->i_sem, &old_dir->d_inode->i_sem);
+exit2:
+	path_release(&newnd);
+exit1:
+	path_release(&oldnd);
+exit:
+	return error;
+}
+
+asmlinkage long sys_rename(const char * oldname, const char * newname)
+{
+	int error;
+	char * from;
+	char * to;
+
+	from = getname(oldname);
+	if(IS_ERR(from))
+		return PTR_ERR(from);
+	to = getname(newname);
+	error = PTR_ERR(to);
+	if (!IS_ERR(to)) {
+		error = do_rename(from,to);
+		putname(to);
+	}
+	putname(from);
+	return error;
+}
+
+int vfs_readlink(struct dentry *dentry, char *buffer, int buflen, const char *link)
+{
+	int len;
+
+	len = PTR_ERR(link);
+	if (IS_ERR(link))
+		goto out;
+
+	len = strlen(link);
+	if (len > (unsigned) buflen)
+		len = buflen;
+	if (copy_to_user(buffer, link, len))
+		len = -EFAULT;
+out:
+	return len;
+}
+
+static inline int
+__vfs_follow_link(struct nameidata *nd, const char *link)
+{
+	int res = 0;
+	char *name;
+	if (IS_ERR(link))
+		goto fail;
+
+	if (*link == '/') {
+		path_release(nd);
+		if (!walk_init_root(link, nd))
+			/* weird __emul_prefix() stuff did it */
+			goto out;
+	}
+	res = link_path_walk(link, nd);
+out:
+	if (current->link_count || res || nd->last_type!=LAST_NORM)
+		return res;
+	/*
+	 * If it is an iterative symlinks resolution in open_namei() we
+	 * have to copy the last component. And all that crap because of
+	 * bloody create() on broken symlinks. Furrfu...
+	 */
+	name = __getname();
+	if (!name) {
+		path_release(nd);
+		return -ENOMEM;
+	}
+	strcpy(name, nd->last.name);
+	nd->last.name = name;
+	return 0;
+fail:
+	path_release(nd);
+	return PTR_ERR(link);
+}
+
+int vfs_follow_link(struct nameidata *nd, const char *link)
+{
+	return __vfs_follow_link(nd, link);
+}
+
+/* get the link contents into pagecache */
+static char *page_getlink(struct dentry * dentry, struct page **ppage)
+{
+	struct page * page;
+	struct address_space *mapping = dentry->d_inode->i_mapping;
+	page = read_cache_page(mapping, 0, (filler_t *)mapping->a_ops->readpage,
+				NULL);
+	if (IS_ERR(page))
+		goto sync_fail;
+	wait_on_page(page);
+	if (!Page_Uptodate(page))
+		goto async_fail;
+	*ppage = page;
+	return kmap(page);
+
+async_fail:
+	page_cache_release(page);
+	return ERR_PTR(-EIO);
+
+sync_fail:
+	return (char*)page;
+}
+
+int page_readlink(struct dentry *dentry, char *buffer, int buflen)
+{
+	struct page *page = NULL;
+	char *s = page_getlink(dentry, &page);
+	int res = vfs_readlink(dentry,buffer,buflen,s);
+	if (page) {
+		kunmap(page);
+		page_cache_release(page);
+	}
+	return res;
+}
+
+int page_follow_link(struct dentry *dentry, struct nameidata *nd)
+{
+	struct page *page = NULL;
+	char *s = page_getlink(dentry, &page);
+	int res = __vfs_follow_link(nd, s);
+	if (page) {
+		kunmap(page);
+		page_cache_release(page);
+	}
+	return res;
+}
+
+struct inode_operations page_symlink_inode_operations = {
+	readlink:	page_readlink,
+	follow_link:	page_follow_link,
+};
diff --git a/fs/namespace.c b/fs/namespace.c
new file mode 100644
index 00000000000000..d467ddc08f54f1
--- /dev/null
+++ b/fs/namespace.c
@@ -0,0 +1,1073 @@
+/*
+ *  linux/fs/namespace.c
+ *
+ * (C) Copyright Al Viro 2000, 2001
+ *	Released under GPL v2.
+ *
+ * Based on code from fs/super.c, copyright Linus Torvalds and others.
+ * Heavily rewritten.
+ */
+
+#include <linux/config.h>
+#include <linux/slab.h>
+#include <linux/smp_lock.h>
+#include <linux/init.h>
+#include <linux/quotaops.h>
+#include <linux/acct.h>
+#include <linux/module.h>
+
+#include <asm/uaccess.h>
+
+#include <linux/seq_file.h>
+#include <linux/namespace.h>
+
+struct vfsmount *do_kern_mount(const char *type, int flags, char *name, void *data);
+int do_remount_sb(struct super_block *sb, int flags, void * data);
+void kill_super(struct super_block *sb);
+extern int __init init_rootfs(void);
+
+static struct list_head *mount_hashtable;
+static int hash_mask, hash_bits;
+static kmem_cache_t *mnt_cache; 
+
+static inline unsigned long hash(struct vfsmount *mnt, struct dentry *dentry)
+{
+	unsigned long tmp = ((unsigned long) mnt / L1_CACHE_BYTES);
+	tmp += ((unsigned long) dentry / L1_CACHE_BYTES);
+	tmp = tmp + (tmp >> hash_bits);
+	return tmp & hash_mask;
+}
+
+struct vfsmount *alloc_vfsmnt(char *name)
+{
+	struct vfsmount *mnt = kmem_cache_alloc(mnt_cache, GFP_KERNEL); 
+	if (mnt) {
+		memset(mnt, 0, sizeof(struct vfsmount));
+		atomic_set(&mnt->mnt_count,1);
+		INIT_LIST_HEAD(&mnt->mnt_hash);
+		INIT_LIST_HEAD(&mnt->mnt_child);
+		INIT_LIST_HEAD(&mnt->mnt_mounts);
+		INIT_LIST_HEAD(&mnt->mnt_list);
+		if (name) {
+			int size = strlen(name)+1;
+			char * newname = kmalloc(size, GFP_KERNEL);
+			if (newname) {
+				memcpy(newname, name, size);
+				mnt->mnt_devname = newname;
+			}
+		}
+	}
+	return mnt;
+}
+
+void free_vfsmnt(struct vfsmount *mnt)
+{
+	if (mnt->mnt_devname)
+		kfree(mnt->mnt_devname);
+	kmem_cache_free(mnt_cache, mnt);
+}
+
+struct vfsmount *lookup_mnt(struct vfsmount *mnt, struct dentry *dentry)
+{
+	struct list_head * head = mount_hashtable + hash(mnt, dentry);
+	struct list_head * tmp = head;
+	struct vfsmount *p;
+
+	for (;;) {
+		tmp = tmp->next;
+		p = NULL;
+		if (tmp == head)
+			break;
+		p = list_entry(tmp, struct vfsmount, mnt_hash);
+		if (p->mnt_parent == mnt && p->mnt_mountpoint == dentry)
+			break;
+	}
+	return p;
+}
+
+static int check_mnt(struct vfsmount *mnt)
+{
+	spin_lock(&dcache_lock);
+	while (mnt->mnt_parent != mnt)
+		mnt = mnt->mnt_parent;
+	spin_unlock(&dcache_lock);
+	return mnt == current->namespace->root;
+}
+
+static void detach_mnt(struct vfsmount *mnt, struct nameidata *old_nd)
+{
+	old_nd->dentry = mnt->mnt_mountpoint;
+	old_nd->mnt = mnt->mnt_parent;
+	mnt->mnt_parent = mnt;
+	mnt->mnt_mountpoint = mnt->mnt_root;
+	list_del_init(&mnt->mnt_child);
+	list_del_init(&mnt->mnt_hash);
+	old_nd->dentry->d_mounted--;
+}
+
+static void attach_mnt(struct vfsmount *mnt, struct nameidata *nd)
+{
+	mnt->mnt_parent = mntget(nd->mnt);
+	mnt->mnt_mountpoint = dget(nd->dentry);
+	list_add(&mnt->mnt_hash, mount_hashtable+hash(nd->mnt, nd->dentry));
+	list_add_tail(&mnt->mnt_child, &nd->mnt->mnt_mounts);
+	nd->dentry->d_mounted++;
+}
+
+static struct vfsmount *next_mnt(struct vfsmount *p, struct vfsmount *root)
+{
+	struct list_head *next = p->mnt_mounts.next;
+	if (next == &p->mnt_mounts) {
+		while (1) {
+			if (p == root)
+				return NULL;
+			next = p->mnt_child.next;
+			if (next != &p->mnt_parent->mnt_mounts)
+				break;
+			p = p->mnt_parent;
+		}
+	}
+	return list_entry(next, struct vfsmount, mnt_child);
+}
+
+static struct vfsmount *
+clone_mnt(struct vfsmount *old, struct dentry *root)
+{
+	struct super_block *sb = old->mnt_sb;
+	struct vfsmount *mnt = alloc_vfsmnt(old->mnt_devname);
+
+	if (mnt) {
+		mnt->mnt_flags = old->mnt_flags;
+		atomic_inc(&sb->s_active);
+		mnt->mnt_sb = sb;
+		mnt->mnt_root = dget(root);
+		mnt->mnt_mountpoint = mnt->mnt_root;
+		mnt->mnt_parent = mnt;
+	}
+	return mnt;
+}
+
+void __mntput(struct vfsmount *mnt)
+{
+	struct super_block *sb = mnt->mnt_sb;
+	dput(mnt->mnt_root);
+	free_vfsmnt(mnt);
+	kill_super(sb);
+}
+
+/* iterator */
+static void *m_start(struct seq_file *m, loff_t *pos)
+{
+	struct namespace *n = m->private;
+	struct list_head *p;
+	loff_t l = *pos;
+
+	down_read(&n->sem);
+	list_for_each(p, &n->list)
+		if (!l--)
+			return list_entry(p, struct vfsmount, mnt_list);
+	return NULL;
+}
+
+static void *m_next(struct seq_file *m, void *v, loff_t *pos)
+{
+	struct namespace *n = m->private;
+	struct list_head *p = ((struct vfsmount *)v)->mnt_list.next;
+	(*pos)++;
+	return p==&n->list ? NULL : list_entry(p, struct vfsmount, mnt_list);
+}
+
+static void m_stop(struct seq_file *m, void *v)
+{
+	struct namespace *n = m->private;
+	up_read(&n->sem);
+}
+
+static inline void mangle(struct seq_file *m, const char *s)
+{
+	seq_escape(m, s, " \t\n\\");
+}
+
+static int show_vfsmnt(struct seq_file *m, void *v)
+{
+	struct vfsmount *mnt = v;
+	int err = 0;
+	static struct proc_fs_info {
+		int flag;
+		char *str;
+	} fs_info[] = {
+		{ MS_SYNCHRONOUS, ",sync" },
+		{ MS_MANDLOCK, ",mand" },
+		{ MS_NOATIME, ",noatime" },
+		{ MS_NODIRATIME, ",nodiratime" },
+		{ 0, NULL }
+	};
+	static struct proc_fs_info mnt_info[] = {
+		{ MNT_NOSUID, ",nosuid" },
+		{ MNT_NODEV, ",nodev" },
+		{ MNT_NOEXEC, ",noexec" },
+		{ 0, NULL }
+	};
+	struct proc_fs_info *fs_infop;
+	char *path_buf, *path;
+
+	path_buf = (char *) __get_free_page(GFP_KERNEL);
+	if (!path_buf)
+		return -ENOMEM;
+	path = d_path(mnt->mnt_root, mnt, path_buf, PAGE_SIZE);
+	if (IS_ERR(path)) {
+		free_page((unsigned long) path_buf);
+		return PTR_ERR(path);
+	}
+
+	mangle(m, mnt->mnt_devname ? mnt->mnt_devname : "none");
+	seq_putc(m, ' ');
+	mangle(m, path);
+	free_page((unsigned long) path_buf);
+	seq_putc(m, ' ');
+	mangle(m, mnt->mnt_sb->s_type->name);
+	seq_puts(m, mnt->mnt_sb->s_flags & MS_RDONLY ? " ro" : " rw");
+	for (fs_infop = fs_info; fs_infop->flag; fs_infop++) {
+		if (mnt->mnt_sb->s_flags & fs_infop->flag)
+			seq_puts(m, fs_infop->str);
+	}
+	for (fs_infop = mnt_info; fs_infop->flag; fs_infop++) {
+		if (mnt->mnt_flags & fs_infop->flag)
+			seq_puts(m, fs_infop->str);
+	}
+	if (mnt->mnt_sb->s_op->show_options)
+		err = mnt->mnt_sb->s_op->show_options(m, mnt);
+	seq_puts(m, " 0 0\n");
+	return err;
+}
+
+struct seq_operations mounts_op = {
+	start:	m_start,
+	next:	m_next,
+	stop:	m_stop,
+	show:	show_vfsmnt
+};
+
+/*
+ * Doesn't take quota and stuff into account. IOW, in some cases it will
+ * give false negatives. The main reason why it's here is that we need
+ * a non-destructive way to look for easily umountable filesystems.
+ */
+int may_umount(struct vfsmount *mnt)
+{
+	if (atomic_read(&mnt->mnt_count) > 2)
+		return -EBUSY;
+	return 0;
+}
+
+void umount_tree(struct vfsmount *mnt)
+{
+	struct vfsmount *p;
+	LIST_HEAD(kill);
+
+	for (p = mnt; p; p = next_mnt(p, mnt)) {
+		list_del(&p->mnt_list);
+		list_add(&p->mnt_list, &kill);
+	}
+
+	while (!list_empty(&kill)) {
+		mnt = list_entry(kill.next, struct vfsmount, mnt_list);
+		list_del_init(&mnt->mnt_list);
+		if (mnt->mnt_parent == mnt) {
+			spin_unlock(&dcache_lock);
+		} else {
+			struct nameidata old_nd;
+			detach_mnt(mnt, &old_nd);
+			spin_unlock(&dcache_lock);
+			path_release(&old_nd);
+		}
+		mntput(mnt);
+		spin_lock(&dcache_lock);
+	}
+}
+
+static int do_umount(struct vfsmount *mnt, int flags)
+{
+	struct super_block * sb = mnt->mnt_sb;
+	int retval = 0;
+
+	/*
+	 * If we may have to abort operations to get out of this
+	 * mount, and they will themselves hold resources we must
+	 * allow the fs to do things. In the Unix tradition of
+	 * 'Gee thats tricky lets do it in userspace' the umount_begin
+	 * might fail to complete on the first run through as other tasks
+	 * must return, and the like. Thats for the mount program to worry
+	 * about for the moment.
+	 */
+
+	lock_kernel();
+	if( (flags&MNT_FORCE) && sb->s_op->umount_begin)
+		sb->s_op->umount_begin(sb);
+	unlock_kernel();
+
+	/*
+	 * No sense to grab the lock for this test, but test itself looks
+	 * somewhat bogus. Suggestions for better replacement?
+	 * Ho-hum... In principle, we might treat that as umount + switch
+	 * to rootfs. GC would eventually take care of the old vfsmount.
+	 * Actually it makes sense, especially if rootfs would contain a
+	 * /reboot - static binary that would close all descriptors and
+	 * call reboot(9). Then init(8) could umount root and exec /reboot.
+	 */
+	if (mnt == current->fs->rootmnt && !(flags & MNT_DETACH)) {
+		/*
+		 * Special case for "unmounting" root ...
+		 * we just try to remount it readonly.
+		 */
+		down_write(&sb->s_umount);
+		if (!(sb->s_flags & MS_RDONLY)) {
+			lock_kernel();
+			retval = do_remount_sb(sb, MS_RDONLY, 0);
+			unlock_kernel();
+		}
+		up_write(&sb->s_umount);
+		return retval;
+	}
+
+	down_write(&current->namespace->sem);
+	spin_lock(&dcache_lock);
+
+	if (atomic_read(&sb->s_active) == 1) {
+		/* last instance - try to be smart */
+		spin_unlock(&dcache_lock);
+		lock_kernel();
+		DQUOT_OFF(sb);
+		acct_auto_close(sb->s_dev);
+		unlock_kernel();
+		spin_lock(&dcache_lock);
+	}
+	retval = -EBUSY;
+	if (atomic_read(&mnt->mnt_count) == 2 || flags & MNT_DETACH) {
+		if (!list_empty(&mnt->mnt_list))
+			umount_tree(mnt);
+		retval = 0;
+	}
+	spin_unlock(&dcache_lock);
+	up_write(&current->namespace->sem);
+	return retval;
+}
+
+/*
+ * Now umount can handle mount points as well as block devices.
+ * This is important for filesystems which use unnamed block devices.
+ *
+ * We now support a flag for forced unmount like the other 'big iron'
+ * unixes. Our API is identical to OSF/1 to avoid making a mess of AMD
+ */
+
+asmlinkage long sys_umount(char * name, int flags)
+{
+	struct nameidata nd;
+	int retval;
+
+	retval = __user_walk(name, LOOKUP_POSITIVE|LOOKUP_FOLLOW, &nd);
+	if (retval)
+		goto out;
+	retval = -EINVAL;
+	if (nd.dentry != nd.mnt->mnt_root)
+		goto dput_and_out;
+	if (!check_mnt(nd.mnt))
+		goto dput_and_out;
+
+	retval = -EPERM;
+	if (!capable(CAP_SYS_ADMIN))
+		goto dput_and_out;
+
+	retval = do_umount(nd.mnt, flags);
+dput_and_out:
+	path_release(&nd);
+out:
+	return retval;
+}
+
+/*
+ *	The 2.0 compatible umount. No flags. 
+ */
+ 
+asmlinkage long sys_oldumount(char * name)
+{
+	return sys_umount(name,0);
+}
+
+static int mount_is_safe(struct nameidata *nd)
+{
+	if (capable(CAP_SYS_ADMIN))
+		return 0;
+	return -EPERM;
+#ifdef notyet
+	if (S_ISLNK(nd->dentry->d_inode->i_mode))
+		return -EPERM;
+	if (nd->dentry->d_inode->i_mode & S_ISVTX) {
+		if (current->uid != nd->dentry->d_inode->i_uid)
+			return -EPERM;
+	}
+	if (permission(nd->dentry->d_inode, MAY_WRITE))
+		return -EPERM;
+	return 0;
+#endif
+}
+
+static struct vfsmount *copy_tree(struct vfsmount *mnt, struct dentry *dentry)
+{
+	struct vfsmount *p, *next, *q, *res;
+	struct nameidata nd;
+
+	p = mnt;
+	res = nd.mnt = q = clone_mnt(p, dentry);
+	if (!q)
+		goto Enomem;
+	q->mnt_parent = q;
+	q->mnt_mountpoint = p->mnt_mountpoint;
+
+	while ( (next = next_mnt(p, mnt)) != NULL) {
+		while (p != next->mnt_parent) {
+			p = p->mnt_parent;
+			q = q->mnt_parent;
+		}
+		p = next;
+		nd.mnt = q;
+		nd.dentry = p->mnt_mountpoint;
+		q = clone_mnt(p, p->mnt_root);
+		if (!q)
+			goto Enomem;
+		spin_lock(&dcache_lock);
+		list_add_tail(&q->mnt_list, &res->mnt_list);
+		attach_mnt(q, &nd);
+		spin_unlock(&dcache_lock);
+	}
+	return res;
+Enomem:
+	if (res) {
+		spin_lock(&dcache_lock);
+		umount_tree(res);
+		spin_unlock(&dcache_lock);
+	}
+	return NULL;
+}
+
+static int graft_tree(struct vfsmount *mnt, struct nameidata *nd)
+{
+	int err;
+	if (mnt->mnt_sb->s_flags & MS_NOUSER)
+		return -EINVAL;
+
+	if (S_ISDIR(nd->dentry->d_inode->i_mode) !=
+	      S_ISDIR(mnt->mnt_root->d_inode->i_mode))
+		return -ENOTDIR;
+
+	err = -ENOENT;
+	down(&nd->dentry->d_inode->i_zombie);
+	if (IS_DEADDIR(nd->dentry->d_inode))
+		goto out_unlock;
+
+	spin_lock(&dcache_lock);
+	if (IS_ROOT(nd->dentry) || !d_unhashed(nd->dentry)) {
+		struct list_head head;
+		attach_mnt(mnt, nd);
+		list_add_tail(&head, &mnt->mnt_list);
+		list_splice(&head, current->namespace->list.prev);
+		mntget(mnt);
+		err = 0;
+	}
+	spin_unlock(&dcache_lock);
+out_unlock:
+	up(&nd->dentry->d_inode->i_zombie);
+	return err;
+}
+
+/*
+ * do loopback mount.
+ */
+static int do_loopback(struct nameidata *nd, char *old_name, int recurse)
+{
+	struct nameidata old_nd;
+	struct vfsmount *mnt = NULL;
+	int err = mount_is_safe(nd);
+	if (err)
+		return err;
+	if (!old_name || !*old_name)
+		return -EINVAL;
+	err = path_lookup(old_name, LOOKUP_POSITIVE|LOOKUP_FOLLOW, &old_nd);
+	if (err)
+		return err;
+
+	down_write(&current->namespace->sem);
+	err = -EINVAL;
+	if (check_mnt(nd->mnt) && (!recurse || check_mnt(old_nd.mnt))) {
+		err = -ENOMEM;
+		if (recurse)
+			mnt = copy_tree(old_nd.mnt, old_nd.dentry);
+		else
+			mnt = clone_mnt(old_nd.mnt, old_nd.dentry);
+	}
+
+	if (mnt) {
+		err = graft_tree(mnt, nd);
+		if (err) {
+			spin_lock(&dcache_lock);
+			umount_tree(mnt);
+			spin_unlock(&dcache_lock);
+		} else
+			mntput(mnt);
+	}
+
+	up_write(&current->namespace->sem);
+	path_release(&old_nd);
+	return err;
+}
+
+/*
+ * change filesystem flags. dir should be a physical root of filesystem.
+ * If you've mounted a non-root directory somewhere and want to do remount
+ * on it - tough luck.
+ */
+
+static int do_remount(struct nameidata *nd,int flags,int mnt_flags,void *data)
+{
+	int err;
+	struct super_block * sb = nd->mnt->mnt_sb;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+
+	if (!check_mnt(nd->mnt))
+		return -EINVAL;
+
+	if (nd->dentry != nd->mnt->mnt_root)
+		return -EINVAL;
+
+	down_write(&sb->s_umount);
+	err = do_remount_sb(sb, flags, data);
+	if (!err)
+		nd->mnt->mnt_flags=mnt_flags;
+	up_write(&sb->s_umount);
+	return err;
+}
+
+static int do_move_mount(struct nameidata *nd, char *old_name)
+{
+	struct nameidata old_nd, parent_nd;
+	struct vfsmount *p;
+	int err = 0;
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+	if (!old_name || !*old_name)
+		return -EINVAL;
+	err = path_lookup(old_name, LOOKUP_POSITIVE|LOOKUP_FOLLOW, &old_nd);
+	if (err)
+		return err;
+
+	down_write(&current->namespace->sem);
+	while(d_mountpoint(nd->dentry) && follow_down(&nd->mnt, &nd->dentry))
+		;
+	err = -EINVAL;
+	if (!check_mnt(nd->mnt) || !check_mnt(old_nd.mnt))
+		goto out;
+
+	err = -ENOENT;
+	down(&nd->dentry->d_inode->i_zombie);
+	if (IS_DEADDIR(nd->dentry->d_inode))
+		goto out1;
+
+	spin_lock(&dcache_lock);
+	if (!IS_ROOT(nd->dentry) && d_unhashed(nd->dentry))
+		goto out2;
+
+	err = -EINVAL;
+	if (old_nd.dentry != old_nd.mnt->mnt_root)
+		goto out2;
+
+	if (old_nd.mnt == old_nd.mnt->mnt_parent)
+		goto out2;
+
+	if (S_ISDIR(nd->dentry->d_inode->i_mode) !=
+	      S_ISDIR(old_nd.dentry->d_inode->i_mode))
+		goto out2;
+
+	err = -ELOOP;
+	for (p = nd->mnt; p->mnt_parent!=p; p = p->mnt_parent)
+		if (p == old_nd.mnt)
+			goto out2;
+	err = 0;
+
+	detach_mnt(old_nd.mnt, &parent_nd);
+	attach_mnt(old_nd.mnt, nd);
+out2:
+	spin_unlock(&dcache_lock);
+out1:
+	up(&nd->dentry->d_inode->i_zombie);
+out:
+	up_write(&current->namespace->sem);
+	if (!err)
+		path_release(&parent_nd);
+	path_release(&old_nd);
+	return err;
+}
+
+static int do_add_mount(struct nameidata *nd, char *type, int flags,
+			int mnt_flags, char *name, void *data)
+{
+	struct vfsmount *mnt;
+	int err;
+
+	if (!type || !memchr(type, 0, PAGE_SIZE))
+		return -EINVAL;
+
+	/* we need capabilities... */
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+
+	mnt = do_kern_mount(type, flags, name, data);
+	err = PTR_ERR(mnt);
+	if (IS_ERR(mnt))
+		goto out;
+
+	down_write(&current->namespace->sem);
+	/* Something was mounted here while we slept */
+	while(d_mountpoint(nd->dentry) && follow_down(&nd->mnt, &nd->dentry))
+		;
+	err = -EINVAL;
+	if (!check_mnt(nd->mnt))
+		goto unlock;
+
+	/* Refuse the same filesystem on the same mount point */
+	err = -EBUSY;
+	if (nd->mnt->mnt_sb == mnt->mnt_sb && nd->mnt->mnt_root == nd->dentry)
+		goto unlock;
+
+	mnt->mnt_flags = mnt_flags;
+	err = graft_tree(mnt, nd);
+unlock:
+	up_write(&current->namespace->sem);
+	mntput(mnt);
+out:
+	return err;
+}
+
+static int copy_mount_options (const void *data, unsigned long *where)
+{
+	int i;
+	unsigned long page;
+	unsigned long size;
+	
+	*where = 0;
+	if (!data)
+		return 0;
+
+	if (!(page = __get_free_page(GFP_KERNEL)))
+		return -ENOMEM;
+
+	/* We only care that *some* data at the address the user
+	 * gave us is valid.  Just in case, we'll zero
+	 * the remainder of the page.
+	 */
+	/* copy_from_user cannot cross TASK_SIZE ! */
+	size = TASK_SIZE - (unsigned long)data;
+	if (size > PAGE_SIZE)
+		size = PAGE_SIZE;
+
+	i = size - copy_from_user((void *)page, data, size);
+	if (!i) {
+		free_page(page); 
+		return -EFAULT;
+	}
+	if (i != PAGE_SIZE)
+		memset((char *)page + i, 0, PAGE_SIZE - i);
+	*where = page;
+	return 0;
+}
+
+/*
+ * Flags is a 32-bit value that allows up to 31 non-fs dependent flags to
+ * be given to the mount() call (ie: read-only, no-dev, no-suid etc).
+ *
+ * data is a (void *) that can point to any structure up to
+ * PAGE_SIZE-1 bytes, which can contain arbitrary fs-dependent
+ * information (or be NULL).
+ *
+ * Pre-0.97 versions of mount() didn't have a flags word.
+ * When the flags word was introduced its top half was required
+ * to have the magic value 0xC0ED, and this remained so until 2.4.0-test9.
+ * Therefore, if this magic number is present, it carries no information
+ * and must be discarded.
+ */
+long do_mount(char * dev_name, char * dir_name, char *type_page,
+		  unsigned long flags, void *data_page)
+{
+	struct nameidata nd;
+	int retval = 0;
+	int mnt_flags = 0;
+
+	/* Discard magic */
+	if ((flags & MS_MGC_MSK) == MS_MGC_VAL)
+		flags &= ~MS_MGC_MSK;
+
+	/* Basic sanity checks */
+
+	if (!dir_name || !*dir_name || !memchr(dir_name, 0, PAGE_SIZE))
+		return -EINVAL;
+	if (dev_name && !memchr(dev_name, 0, PAGE_SIZE))
+		return -EINVAL;
+
+	if (data_page)
+		((char *)data_page)[PAGE_SIZE - 1] = 0;
+
+	/* Separate the per-mountpoint flags */
+	if (flags & MS_NOSUID)
+		mnt_flags |= MNT_NOSUID;
+	if (flags & MS_NODEV)
+		mnt_flags |= MNT_NODEV;
+	if (flags & MS_NOEXEC)
+		mnt_flags |= MNT_NOEXEC;
+	flags &= ~(MS_NOSUID|MS_NOEXEC|MS_NODEV);
+
+	/* ... and get the mountpoint */
+	retval = path_lookup(dir_name, LOOKUP_FOLLOW|LOOKUP_POSITIVE, &nd);
+	if (retval)
+		return retval;
+
+	if (flags & MS_REMOUNT)
+		retval = do_remount(&nd, flags & ~MS_REMOUNT, mnt_flags,
+				    data_page);
+	else if (flags & MS_BIND)
+		retval = do_loopback(&nd, dev_name, flags & MS_REC);
+	else if (flags & MS_MOVE)
+		retval = do_move_mount(&nd, dev_name);
+	else
+		retval = do_add_mount(&nd, type_page, flags, mnt_flags,
+				      dev_name, data_page);
+	path_release(&nd);
+	return retval;
+}
+
+int copy_namespace(int flags, struct task_struct *tsk)
+{
+	struct namespace *namespace = tsk->namespace;
+	struct namespace *new_ns;
+	struct vfsmount *rootmnt = NULL, *pwdmnt = NULL, *altrootmnt = NULL;
+	struct fs_struct *fs = tsk->fs;
+
+	if (!namespace)
+		return 0;
+
+	get_namespace(namespace);
+
+	if (! (flags & CLONE_NEWNS))
+		return 0;
+
+	if (!capable(CAP_SYS_ADMIN)) {
+		put_namespace(namespace);
+		return -EPERM;
+	}
+
+	new_ns = kmalloc(sizeof(struct namespace), GFP_KERNEL);
+	if (!new_ns)
+		goto out;
+
+	atomic_set(&new_ns->count, 1);
+	init_rwsem(&new_ns->sem);
+	new_ns->root = NULL;
+	INIT_LIST_HEAD(&new_ns->list);
+
+	down_write(&tsk->namespace->sem);
+	/* First pass: copy the tree topology */
+	new_ns->root = copy_tree(namespace->root, namespace->root->mnt_root);
+	spin_lock(&dcache_lock);
+	list_add_tail(&new_ns->list, &new_ns->root->mnt_list);
+	spin_unlock(&dcache_lock);
+
+	/* Second pass: switch the tsk->fs->* elements */
+	if (fs) {
+		struct vfsmount *p, *q;
+		write_lock(&fs->lock);
+
+		p = namespace->root;
+		q = new_ns->root;
+		while (p) {
+			if (p == fs->rootmnt) {
+				rootmnt = p;
+				fs->rootmnt = mntget(q);
+			}
+			if (p == fs->pwdmnt) {
+				pwdmnt = p;
+				fs->pwdmnt = mntget(q);
+			}
+			if (p == fs->altrootmnt) {
+				altrootmnt = p;
+				fs->altrootmnt = mntget(q);
+			}
+			p = next_mnt(p, namespace->root);
+			q = next_mnt(q, new_ns->root);
+		}
+		write_unlock(&fs->lock);
+	}
+	up_write(&tsk->namespace->sem);
+
+	tsk->namespace = new_ns;
+
+	if (rootmnt)
+		mntput(rootmnt);
+	if (pwdmnt)
+		mntput(pwdmnt);
+	if (altrootmnt)
+		mntput(altrootmnt);
+
+	put_namespace(namespace);
+	return 0;
+
+out:
+	put_namespace(namespace);
+	return -ENOMEM;
+}
+
+asmlinkage long sys_mount(char * dev_name, char * dir_name, char * type,
+			  unsigned long flags, void * data)
+{
+	int retval;
+	unsigned long data_page;
+	unsigned long type_page;
+	unsigned long dev_page;
+	char *dir_page;
+
+	retval = copy_mount_options (type, &type_page);
+	if (retval < 0)
+		return retval;
+
+	dir_page = getname(dir_name);
+	retval = PTR_ERR(dir_page);
+	if (IS_ERR(dir_page))
+		goto out1;
+
+	retval = copy_mount_options (dev_name, &dev_page);
+	if (retval < 0)
+		goto out2;
+
+	retval = copy_mount_options (data, &data_page);
+	if (retval < 0)
+		goto out3;
+
+	lock_kernel();
+	retval = do_mount((char*)dev_page, dir_page, (char*)type_page,
+			  flags, (void*)data_page);
+	unlock_kernel();
+	free_page(data_page);
+
+out3:
+	free_page(dev_page);
+out2:
+	putname(dir_page);
+out1:
+	free_page(type_page);
+	return retval;
+}
+
+static void chroot_fs_refs(struct nameidata *old_nd, struct nameidata *new_nd)
+{
+	struct task_struct *p;
+	struct fs_struct *fs;
+
+	read_lock(&tasklist_lock);
+	for_each_task(p) {
+		task_lock(p);
+		fs = p->fs;
+		if (fs) {
+			atomic_inc(&fs->count);
+			task_unlock(p);
+			if (fs->root==old_nd->dentry&&fs->rootmnt==old_nd->mnt)
+				set_fs_root(fs, new_nd->mnt, new_nd->dentry);
+			if (fs->pwd==old_nd->dentry&&fs->pwdmnt==old_nd->mnt)
+				set_fs_pwd(fs, new_nd->mnt, new_nd->dentry);
+			put_fs_struct(fs);
+		} else
+			task_unlock(p);
+	}
+	read_unlock(&tasklist_lock);
+}
+
+/*
+ * Moves the current root to put_root, and sets root/cwd of all processes
+ * which had them on the old root to new_root.
+ *
+ * Note:
+ *  - we don't move root/cwd if they are not at the root (reason: if something
+ *    cared enough to change them, it's probably wrong to force them elsewhere)
+ *  - it's okay to pick a root that isn't the root of a file system, e.g.
+ *    /nfs/my_root where /nfs is the mount point. It must be a mountpoint,
+ *    though, so you may need to say mount --bind /nfs/my_root /nfs/my_root
+ *    first.
+ */
+
+asmlinkage long sys_pivot_root(const char *new_root, const char *put_old)
+{
+	struct vfsmount *tmp;
+	struct nameidata new_nd, old_nd, parent_nd, root_parent, user_nd;
+	int error;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+
+	lock_kernel();
+
+	error = __user_walk(new_root, LOOKUP_POSITIVE|LOOKUP_FOLLOW|LOOKUP_DIRECTORY, &new_nd);
+	if (error)
+		goto out0;
+	error = -EINVAL;
+	if (!check_mnt(new_nd.mnt))
+		goto out1;
+
+	error = __user_walk(put_old, LOOKUP_POSITIVE|LOOKUP_FOLLOW|LOOKUP_DIRECTORY, &old_nd);
+	if (error)
+		goto out1;
+
+	read_lock(&current->fs->lock);
+	user_nd.mnt = mntget(current->fs->rootmnt);
+	user_nd.dentry = dget(current->fs->root);
+	read_unlock(&current->fs->lock);
+	down_write(&current->namespace->sem);
+	down(&old_nd.dentry->d_inode->i_zombie);
+	error = -EINVAL;
+	if (!check_mnt(user_nd.mnt))
+		goto out2;
+	error = -ENOENT;
+	if (IS_DEADDIR(new_nd.dentry->d_inode))
+		goto out2;
+	if (d_unhashed(new_nd.dentry) && !IS_ROOT(new_nd.dentry))
+		goto out2;
+	if (d_unhashed(old_nd.dentry) && !IS_ROOT(old_nd.dentry))
+		goto out2;
+	error = -EBUSY;
+	if (new_nd.mnt == user_nd.mnt || old_nd.mnt == user_nd.mnt)
+		goto out2; /* loop */
+	error = -EINVAL;
+	if (user_nd.mnt->mnt_root != user_nd.dentry)
+		goto out2;
+	if (new_nd.mnt->mnt_root != new_nd.dentry)
+		goto out2; /* not a mountpoint */
+	tmp = old_nd.mnt; /* make sure we can reach put_old from new_root */
+	spin_lock(&dcache_lock);
+	if (tmp != new_nd.mnt) {
+		for (;;) {
+			if (tmp->mnt_parent == tmp)
+				goto out3;
+			if (tmp->mnt_parent == new_nd.mnt)
+				break;
+			tmp = tmp->mnt_parent;
+		}
+		if (!is_subdir(tmp->mnt_mountpoint, new_nd.dentry))
+			goto out3;
+	} else if (!is_subdir(old_nd.dentry, new_nd.dentry))
+		goto out3;
+	detach_mnt(new_nd.mnt, &parent_nd);
+	detach_mnt(user_nd.mnt, &root_parent);
+	attach_mnt(user_nd.mnt, &old_nd);
+	attach_mnt(new_nd.mnt, &root_parent);
+	spin_unlock(&dcache_lock);
+	chroot_fs_refs(&user_nd, &new_nd);
+	error = 0;
+	path_release(&root_parent);
+	path_release(&parent_nd);
+out2:
+	up(&old_nd.dentry->d_inode->i_zombie);
+	up_write(&current->namespace->sem);
+	path_release(&user_nd);
+	path_release(&old_nd);
+out1:
+	path_release(&new_nd);
+out0:
+	unlock_kernel();
+	return error;
+out3:
+	spin_unlock(&dcache_lock);
+	goto out2;
+}
+
+static void __init init_mount_tree(void)
+{
+	struct vfsmount *mnt;
+	struct namespace *namespace;
+	struct task_struct *p;
+
+	mnt = do_kern_mount("rootfs", 0, "rootfs", NULL);
+	if (IS_ERR(mnt))
+		panic("Can't create rootfs");
+	namespace = kmalloc(sizeof(*namespace), GFP_KERNEL);
+	if (!namespace)
+		panic("Can't allocate initial namespace");
+	atomic_set(&namespace->count, 1);
+	INIT_LIST_HEAD(&namespace->list);
+	init_rwsem(&namespace->sem);
+	list_add(&mnt->mnt_list, &namespace->list);
+	namespace->root = mnt;
+
+	init_task.namespace = namespace;
+	read_lock(&tasklist_lock);
+	for_each_task(p) {
+		get_namespace(namespace);
+		p->namespace = namespace;
+	}
+	read_unlock(&tasklist_lock);
+
+	set_fs_pwd(current->fs, namespace->root, namespace->root->mnt_root);
+	set_fs_root(current->fs, namespace->root, namespace->root->mnt_root);
+}
+
+void __init mnt_init(unsigned long mempages)
+{
+	struct list_head *d;
+	unsigned long order;
+	unsigned int nr_hash;
+	int i;
+
+	mnt_cache = kmem_cache_create("mnt_cache", sizeof(struct vfsmount),
+					0, SLAB_HWCACHE_ALIGN, NULL, NULL);
+	if (!mnt_cache)
+		panic("Cannot create vfsmount cache");
+
+	/* using single pointer list heads would save half of the hash table. */
+	order = 0; 
+	mount_hashtable = (struct list_head *)
+		__get_free_pages(GFP_ATOMIC, order);
+
+	if (!mount_hashtable)
+		panic("Failed to allocate mount hash table\n");
+
+	/*
+	 * Find the power-of-two list-heads that can fit into the allocation..
+	 * We don't guarantee that "sizeof(struct list_head)" is necessarily
+	 * a power-of-two.
+	 */
+	nr_hash = (1UL << order) * PAGE_SIZE / sizeof(struct list_head);
+	hash_bits = 0;
+	do {
+		hash_bits++;
+	} while ((nr_hash >> hash_bits) != 0);
+	hash_bits--;
+
+	/*
+	 * Re-calculate the actual number of entries and the mask
+	 * from the number of bits we can fit.
+	 */
+	nr_hash = 1UL << hash_bits;
+	hash_mask = nr_hash-1;
+
+	printk(KERN_INFO "Mount cache hash table entries: %d"
+		" (order: %ld, %ld bytes)\n",
+		nr_hash, order, (PAGE_SIZE << order));
+
+	/* And initialize the newly allocated array */
+	d = mount_hashtable;
+	i = nr_hash;
+	do {
+		INIT_LIST_HEAD(d);
+		d++;
+		i--;
+	} while (i);
+	init_rootfs();
+	init_mount_tree();
+}
diff --git a/fs/ncpfs/Config.in b/fs/ncpfs/Config.in
new file mode 100644
index 00000000000000..1f1eb12787f7c4
--- /dev/null
+++ b/fs/ncpfs/Config.in
@@ -0,0 +1,11 @@
+#
+# NCP Filesystem configuration
+#
+dep_mbool '  Packet signatures' CONFIG_NCPFS_PACKET_SIGNING $CONFIG_NCP_FS
+dep_mbool '  Proprietary file locking' CONFIG_NCPFS_IOCTL_LOCKING $CONFIG_NCP_FS
+dep_mbool '  Clear remove/delete inhibit when needed' CONFIG_NCPFS_STRONG $CONFIG_NCP_FS
+dep_mbool '  Use NFS namespace if available' CONFIG_NCPFS_NFS_NS $CONFIG_NCP_FS
+dep_mbool '  Use LONG (OS/2) namespace if available' CONFIG_NCPFS_OS2_NS $CONFIG_NCP_FS
+dep_mbool '  Lowercase DOS filenames' CONFIG_NCPFS_SMALLDOS $CONFIG_NCP_FS
+dep_mbool '  Use Native Language Support' CONFIG_NCPFS_NLS $CONFIG_NCP_FS
+dep_mbool '  Enable symbolic links and execute flags' CONFIG_NCPFS_EXTRAS $CONFIG_NCP_FS
diff --git a/fs/ncpfs/Makefile b/fs/ncpfs/Makefile
new file mode 100644
index 00000000000000..f30dfb67128d46
--- /dev/null
+++ b/fs/ncpfs/Makefile
@@ -0,0 +1,21 @@
+#
+# Makefile for the linux ncp filesystem routines.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile.
+
+O_TARGET := ncpfs.o
+
+obj-y    := dir.o file.o inode.o ioctl.o mmap.o ncplib_kernel.o sock.o \
+		symlink.o ncpsign_kernel.o
+obj-m    := $(O_TARGET)
+
+# If you want debugging output, please uncomment the following line
+# EXTRA_CFLAGS += -DDEBUG_NCP=1
+
+CFLAGS_ncplib_kernel.o := -finline-functions
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/ncpfs/dir.c b/fs/ncpfs/dir.c
new file mode 100644
index 00000000000000..e6da885c0a8c70
--- /dev/null
+++ b/fs/ncpfs/dir.c
@@ -0,0 +1,1152 @@
+/*
+ *  dir.c
+ *
+ *  Copyright (C) 1995, 1996 by Volker Lendecke
+ *  Modified for big endian by J.F. Chadima and David S. Miller
+ *  Modified 1997 Peter Waltenberg, Bill Hawes, David Woodhouse for 2.1 dcache
+ *  Modified 1998, 1999 Wolfram Pienkoss for NLS
+ *  Modified 1999 Wolfram Pienkoss for directory caching
+ *
+ */
+
+#include <linux/config.h>
+
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/stat.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/mm.h>
+#include <asm/uaccess.h>
+#include <asm/byteorder.h>
+#include <linux/locks.h>
+#include <linux/smp_lock.h>
+
+#include <linux/ncp_fs.h>
+
+#include "ncplib_kernel.h"
+
+static void ncp_read_volume_list(struct file *, void *, filldir_t,
+				struct ncp_cache_control *);
+static void ncp_do_readdir(struct file *, void *, filldir_t,
+				struct ncp_cache_control *);
+
+static int ncp_readdir(struct file *, void *, filldir_t);
+
+static int ncp_create(struct inode *, struct dentry *, int);
+static struct dentry *ncp_lookup(struct inode *, struct dentry *);
+static int ncp_unlink(struct inode *, struct dentry *);
+static int ncp_mkdir(struct inode *, struct dentry *, int);
+static int ncp_rmdir(struct inode *, struct dentry *);
+static int ncp_rename(struct inode *, struct dentry *,
+	  	      struct inode *, struct dentry *);
+#ifdef CONFIG_NCPFS_EXTRAS
+extern int ncp_symlink(struct inode *, struct dentry *, const char *);
+#endif
+		      
+struct file_operations ncp_dir_operations =
+{
+	read:		generic_read_dir,
+	readdir:	ncp_readdir,
+	ioctl:		ncp_ioctl,
+};
+
+struct inode_operations ncp_dir_inode_operations =
+{
+	create:		ncp_create,
+	lookup:		ncp_lookup,
+	unlink:		ncp_unlink,
+#ifdef CONFIG_NCPFS_EXTRAS
+	symlink:	ncp_symlink,
+#endif
+	mkdir:		ncp_mkdir,
+	rmdir:		ncp_rmdir,
+	rename:		ncp_rename,
+	setattr:	ncp_notify_change,
+};
+
+/*
+ * Dentry operations routines
+ */
+static int ncp_lookup_validate(struct dentry *, int);
+static int ncp_hash_dentry(struct dentry *, struct qstr *);
+static int ncp_compare_dentry (struct dentry *, struct qstr *, struct qstr *);
+static int ncp_delete_dentry(struct dentry *);
+
+static struct dentry_operations ncp_dentry_operations =
+{
+	d_revalidate:	ncp_lookup_validate,
+	d_hash:		ncp_hash_dentry,
+	d_compare:	ncp_compare_dentry,
+	d_delete:	ncp_delete_dentry,
+};
+
+struct dentry_operations ncp_root_dentry_operations =
+{
+	d_hash:		ncp_hash_dentry,
+	d_compare:	ncp_compare_dentry,
+	d_delete:	ncp_delete_dentry,
+};
+
+
+/*
+ * Note: leave the hash unchanged if the directory
+ * is case-sensitive.
+ */
+static int 
+ncp_hash_dentry(struct dentry *dentry, struct qstr *this)
+{
+	struct nls_table *t;
+	unsigned long hash;
+	int i;
+
+	t = NCP_IO_TABLE(dentry);
+
+	if (!ncp_case_sensitive(dentry->d_inode)) {
+		hash = init_name_hash();
+		for (i=0; i<this->len ; i++)
+			hash = partial_name_hash(ncp_tolower(t, this->name[i]),
+									hash);
+		this->hash = end_name_hash(hash);
+	}
+	return 0;
+}
+
+static int
+ncp_compare_dentry(struct dentry *dentry, struct qstr *a, struct qstr *b)
+{
+	if (a->len != b->len)
+		return 1;
+
+	if (ncp_case_sensitive(dentry->d_inode))
+		return strncmp(a->name, b->name, a->len);
+
+	return ncp_strnicmp(NCP_IO_TABLE(dentry), a->name, b->name, a->len);
+}
+
+/*
+ * This is the callback from dput() when d_count is going to 0.
+ * We use this to unhash dentries with bad inodes.
+ * Closing files can be safely postponed until iput() - it's done there anyway.
+ */
+static int
+ncp_delete_dentry(struct dentry * dentry)
+{
+	struct inode *inode = dentry->d_inode;
+
+	if (inode) {
+		if (is_bad_inode(inode))
+			return 1;
+	} else
+	{
+	/* N.B. Unhash negative dentries? */
+	}
+	return 0;
+}
+
+static inline int
+ncp_single_volume(struct ncp_server *server)
+{
+	return (server->m.mounted_vol[0] != '\0');
+}
+
+static inline int ncp_is_server_root(struct inode *inode)
+{
+	return (!ncp_single_volume(NCP_SERVER(inode)) &&
+		inode == inode->i_sb->s_root->d_inode);
+}
+
+
+/*
+ * This is the callback when the dcache has a lookup hit.
+ */
+
+
+#ifdef CONFIG_NCPFS_STRONG
+/* try to delete a readonly file (NW R bit set) */
+
+static int
+ncp_force_unlink(struct inode *dir, struct dentry* dentry)
+{
+        int res=0x9c,res2;
+	struct nw_modify_dos_info info;
+	__u32 old_nwattr;
+	struct inode *inode;
+
+	memset(&info, 0, sizeof(info));
+	
+        /* remove the Read-Only flag on the NW server */
+	inode = dentry->d_inode;
+
+	old_nwattr = NCP_FINFO(inode)->nwattr;
+	info.attributes = old_nwattr & ~(aRONLY|aDELETEINHIBIT|aRENAMEINHIBIT);
+	res2 = ncp_modify_file_or_subdir_dos_info_path(NCP_SERVER(inode), inode, NULL, DM_ATTRIBUTES, &info);
+	if (res2)
+		goto leave_me;
+
+        /* now try again the delete operation */
+        res = ncp_del_file_or_subdir2(NCP_SERVER(dir), dentry);
+
+        if (res)  /* delete failed, set R bit again */
+        {
+		info.attributes = old_nwattr;
+		res2 = ncp_modify_file_or_subdir_dos_info_path(NCP_SERVER(inode), inode, NULL, DM_ATTRIBUTES, &info);
+		if (res2)
+                        goto leave_me;
+        }
+leave_me:
+        return(res);
+}
+#endif	/* CONFIG_NCPFS_STRONG */
+
+#ifdef CONFIG_NCPFS_STRONG
+static int
+ncp_force_rename(struct inode *old_dir, struct dentry* old_dentry, char *_old_name,
+                 struct inode *new_dir, struct dentry* new_dentry, char *_new_name)
+{
+	struct nw_modify_dos_info info;
+        int res=0x90,res2;
+	struct inode *old_inode = old_dentry->d_inode;
+	__u32 old_nwattr = NCP_FINFO(old_inode)->nwattr;
+	__u32 new_nwattr = 0; /* shut compiler warning */
+	int old_nwattr_changed = 0;
+	int new_nwattr_changed = 0;
+
+	memset(&info, 0, sizeof(info));
+	
+        /* remove the Read-Only flag on the NW server */
+
+	info.attributes = old_nwattr & ~(aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT);
+	res2 = ncp_modify_file_or_subdir_dos_info_path(NCP_SERVER(old_inode), old_inode, NULL, DM_ATTRIBUTES, &info);
+	if (!res2)
+		old_nwattr_changed = 1;
+	if (new_dentry && new_dentry->d_inode) {
+		new_nwattr = NCP_FINFO(new_dentry->d_inode)->nwattr;
+		info.attributes = new_nwattr & ~(aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT);
+		res2 = ncp_modify_file_or_subdir_dos_info_path(NCP_SERVER(new_dir), new_dir, _new_name, DM_ATTRIBUTES, &info);
+		if (!res2)
+			new_nwattr_changed = 1;
+	}
+        /* now try again the rename operation */
+	/* but only if something really happened */
+	if (new_nwattr_changed || old_nwattr_changed) {
+	        res = ncp_ren_or_mov_file_or_subdir(NCP_SERVER(old_dir),
+        	                                    old_dir, _old_name,
+                	                            new_dir, _new_name);
+	} 
+	if (res)
+		goto leave_me;
+	/* file was successfully renamed, so:
+	   do not set attributes on old file - it no longer exists
+	   copy attributes from old file to new */
+	new_nwattr_changed = old_nwattr_changed;
+	new_nwattr = old_nwattr;
+	old_nwattr_changed = 0;
+	
+leave_me:;
+	if (old_nwattr_changed) {
+		info.attributes = old_nwattr;
+		res2 = ncp_modify_file_or_subdir_dos_info_path(NCP_SERVER(old_inode), old_inode, NULL, DM_ATTRIBUTES, &info);
+		/* ignore errors */
+	}
+	if (new_nwattr_changed)	{
+		info.attributes = new_nwattr;
+		res2 = ncp_modify_file_or_subdir_dos_info_path(NCP_SERVER(new_dir), new_dir, _new_name, DM_ATTRIBUTES, &info);
+		/* ignore errors */
+	}
+        return(res);
+}
+#endif	/* CONFIG_NCPFS_STRONG */
+
+
+static int
+__ncp_lookup_validate(struct dentry * dentry, int flags)
+{
+	struct ncp_server *server;
+	struct inode *dir = dentry->d_parent->d_inode;
+	struct ncp_entry_info finfo;
+	int res, val = 0, len;
+	__u8 __name[NCP_MAXPATHLEN + 1];
+
+	if (!dentry->d_inode || !dir)
+		goto finished;
+
+	server = NCP_SERVER(dir);
+
+	if (!ncp_conn_valid(server))
+		goto finished;
+
+	/*
+	 * Inspired by smbfs:
+	 * The default validation is based on dentry age:
+	 * We set the max age at mount time.  (But each
+	 * successful server lookup renews the timestamp.)
+	 */
+	val = NCP_TEST_AGE(server, dentry);
+	if (val)
+		goto finished;
+
+	DDPRINTK("ncp_lookup_validate: %s/%s not valid, age=%ld, server lookup\n",
+		dentry->d_parent->d_name.name, dentry->d_name.name,
+		NCP_GET_AGE(dentry));
+
+	len = sizeof(__name);
+	if (ncp_is_server_root(dir)) {
+		res = ncp_io2vol(server, __name, &len, dentry->d_name.name,
+						dentry->d_name.len, 1);
+		if (!res)
+			res = ncp_lookup_volume(server, __name, &(finfo.i));
+	} else {
+		res = ncp_io2vol(server, __name, &len, dentry->d_name.name,
+						dentry->d_name.len, !ncp_preserve_case(dir));
+		if (!res)
+			res = ncp_obtain_info(server, dir, __name, &(finfo.i));
+	}
+	DDPRINTK("ncp_lookup_validate: looked for %s/%s, res=%d\n",
+		dentry->d_parent->d_name.name, __name, res);
+	/*
+	 * If we didn't find it, or if it has a different dirEntNum to
+	 * what we remember, it's not valid any more.
+	 */
+	if (!res) {
+		if (finfo.i.dirEntNum == NCP_FINFO(dentry->d_inode)->dirEntNum) {
+			ncp_new_dentry(dentry);
+			val=1;
+		} else
+			DDPRINTK("ncp_lookup_validate: found, but dirEntNum changed\n");
+
+		ncp_update_inode2(dentry->d_inode, &finfo);
+	}
+
+finished:
+	DDPRINTK("ncp_lookup_validate: result=%d\n", val);
+	return val;
+}
+
+static int
+ncp_lookup_validate(struct dentry * dentry, int flags)
+{
+	int res;
+	lock_kernel();
+	res = __ncp_lookup_validate(dentry, flags);
+	unlock_kernel();
+	return res;
+}
+
+static struct dentry *
+ncp_dget_fpos(struct dentry *dentry, struct dentry *parent, unsigned long fpos)
+{
+	struct dentry *dent = dentry;
+	struct list_head *next;
+
+	if (d_validate(dent, parent)) {
+		if (dent->d_name.len <= NCP_MAXPATHLEN &&
+		    (unsigned long)dent->d_fsdata == fpos) {
+			if (!dent->d_inode) {
+				dput(dent);
+				dent = NULL;
+			}
+			return dent;
+		}
+		dput(dent);
+	}
+
+	/* If a pointer is invalid, we search the dentry. */
+	spin_lock(&dcache_lock);
+	next = parent->d_subdirs.next;
+	while (next != &parent->d_subdirs) {
+		dent = list_entry(next, struct dentry, d_child);
+		if ((unsigned long)dent->d_fsdata == fpos) {
+			if (dent->d_inode)
+				dget_locked(dent);
+			else
+				dent = NULL;
+			spin_unlock(&dcache_lock);
+			goto out;
+		}
+		next = next->next;
+	}
+	spin_unlock(&dcache_lock);
+	return NULL;
+
+out:
+	return dent;
+}
+
+static time_t ncp_obtain_mtime(struct dentry *dentry)
+{
+	struct inode *inode = dentry->d_inode;
+	struct ncp_server *server = NCP_SERVER(inode);
+	struct nw_info_struct i;
+
+	if (!ncp_conn_valid(server) || ncp_is_server_root(inode))
+		return 0;
+
+	if (ncp_obtain_info(server, inode, NULL, &i))
+		return 0;
+
+	return ncp_date_dos2unix(le16_to_cpu(i.modifyTime),
+						le16_to_cpu(i.modifyDate));
+}
+
+static int ncp_readdir(struct file *filp, void *dirent, filldir_t filldir)
+{
+	struct dentry *dentry = filp->f_dentry;
+	struct inode *inode = dentry->d_inode;
+	struct page *page = NULL;
+	struct ncp_server *server = NCP_SERVER(inode);
+	union  ncp_dir_cache *cache = NULL;
+	struct ncp_cache_control ctl;
+	int result, mtime_valid = 0;
+	time_t mtime = 0;
+
+	ctl.page  = NULL;
+	ctl.cache = NULL;
+
+	DDPRINTK("ncp_readdir: reading %s/%s, pos=%d\n",
+		dentry->d_parent->d_name.name, dentry->d_name.name,
+		(int) filp->f_pos);
+
+	result = -EIO;
+	if (!ncp_conn_valid(server))
+		goto out;
+
+	result = 0;
+	if (filp->f_pos == 0) {
+		if (filldir(dirent, ".", 1, 0, inode->i_ino, DT_DIR))
+			goto out;
+		filp->f_pos = 1;
+	}
+	if (filp->f_pos == 1) {
+		if (filldir(dirent, "..", 2, 1,
+				dentry->d_parent->d_inode->i_ino, DT_DIR))
+			goto out;
+		filp->f_pos = 2;
+	}
+
+	page = grab_cache_page(&inode->i_data, 0);
+	if (!page)
+		goto read_really;
+
+	ctl.cache = cache = kmap(page);
+	ctl.head  = cache->head;
+
+	if (!Page_Uptodate(page) || !ctl.head.eof)
+		goto init_cache;
+
+	if (filp->f_pos == 2) {
+		if (jiffies - ctl.head.time >= NCP_MAX_AGE(server))
+			goto init_cache;
+
+		mtime = ncp_obtain_mtime(dentry);
+		mtime_valid = 1;
+		if ((!mtime) || (mtime != ctl.head.mtime))
+			goto init_cache;
+	}
+
+	if (filp->f_pos > ctl.head.end)
+		goto finished;
+
+	ctl.fpos = filp->f_pos + (NCP_DIRCACHE_START - 2);
+	ctl.ofs  = ctl.fpos / NCP_DIRCACHE_SIZE;
+	ctl.idx  = ctl.fpos % NCP_DIRCACHE_SIZE;
+
+	for (;;) {
+		if (ctl.ofs != 0) {
+			ctl.page = find_lock_page(&inode->i_data, ctl.ofs);
+			if (!ctl.page)
+				goto invalid_cache;
+			ctl.cache = kmap(ctl.page);
+			if (!Page_Uptodate(ctl.page))
+				goto invalid_cache;
+		}
+		while (ctl.idx < NCP_DIRCACHE_SIZE) {
+			struct dentry *dent;
+			int res;
+
+			dent = ncp_dget_fpos(ctl.cache->dentry[ctl.idx],
+						dentry, filp->f_pos);
+			if (!dent)
+				goto invalid_cache;
+			res = filldir(dirent, dent->d_name.name,
+					dent->d_name.len, filp->f_pos,
+					dent->d_inode->i_ino, DT_UNKNOWN);
+			dput(dent);
+			if (res)
+				goto finished;
+			filp->f_pos += 1;
+			ctl.idx += 1;
+			if (filp->f_pos > ctl.head.end)
+				goto finished;
+		}
+		if (ctl.page) {
+			kunmap(ctl.page);
+			SetPageUptodate(ctl.page);
+			UnlockPage(ctl.page);
+			page_cache_release(ctl.page);
+			ctl.page = NULL;
+		}
+		ctl.idx  = 0;
+		ctl.ofs += 1;
+	}
+invalid_cache:
+	if (ctl.page) {
+		kunmap(ctl.page);
+		UnlockPage(ctl.page);
+		page_cache_release(ctl.page);
+		ctl.page = NULL;
+	}
+	ctl.cache = cache;
+init_cache:
+	ncp_invalidate_dircache_entries(dentry);
+	if (!mtime_valid) {
+		mtime = ncp_obtain_mtime(dentry);
+		mtime_valid = 1;
+	}
+	ctl.head.mtime = mtime;
+	ctl.head.time = jiffies;
+	ctl.head.eof = 0;
+	ctl.fpos = 2;
+	ctl.ofs = 0;
+	ctl.idx = NCP_DIRCACHE_START;
+	ctl.filled = 0;
+	ctl.valid  = 1;
+read_really:
+	if (ncp_is_server_root(inode)) {
+		ncp_read_volume_list(filp, dirent, filldir, &ctl);
+	} else {
+		ncp_do_readdir(filp, dirent, filldir, &ctl);
+	}
+	ctl.head.end = ctl.fpos - 1;
+	ctl.head.eof = ctl.valid;
+finished:
+	if (page) {
+		cache->head = ctl.head;
+		kunmap(page);
+		SetPageUptodate(page);
+		UnlockPage(page);
+		page_cache_release(page);
+	}
+	if (ctl.page) {
+		kunmap(ctl.page);
+		SetPageUptodate(ctl.page);
+		UnlockPage(ctl.page);
+		page_cache_release(ctl.page);
+	}
+out:
+	return result;
+}
+
+static int
+ncp_fill_cache(struct file *filp, void *dirent, filldir_t filldir,
+		struct ncp_cache_control *ctrl, struct ncp_entry_info *entry)
+{
+	struct dentry *newdent, *dentry = filp->f_dentry;
+	struct inode *newino, *inode = dentry->d_inode;
+	struct ncp_cache_control ctl = *ctrl;
+	struct qstr qname;
+	int valid = 0;
+	int hashed = 0;
+	ino_t ino = 0;
+	__u8 __name[NCP_MAXPATHLEN + 1];
+
+	qname.len = sizeof(__name);
+	if (ncp_vol2io(NCP_SERVER(inode), __name, &qname.len,
+			entry->i.entryName, entry->i.nameLen,
+			!ncp_preserve_entry_case(inode, entry->i.NSCreator)))
+		return 1; /* I'm not sure */
+
+	qname.name = __name;
+	qname.hash = full_name_hash(qname.name, qname.len);
+
+	if (dentry->d_op && dentry->d_op->d_hash)
+		if (dentry->d_op->d_hash(dentry, &qname) != 0)
+			goto end_advance;
+
+	newdent = d_lookup(dentry, &qname);
+
+	if (!newdent) {
+		newdent = d_alloc(dentry, &qname);
+		if (!newdent)
+			goto end_advance;
+	} else {
+		hashed = 1;
+		memcpy((char *) newdent->d_name.name, qname.name,
+							newdent->d_name.len);
+	}
+
+	if (!newdent->d_inode) {
+		entry->opened = 0;
+		entry->ino = iunique(inode->i_sb, 2);
+		newino = ncp_iget(inode->i_sb, entry);
+		if (newino) {
+			newdent->d_op = &ncp_dentry_operations;
+			d_instantiate(newdent, newino);
+			if (!hashed)
+				d_rehash(newdent);
+		}
+	} else
+		ncp_update_inode2(newdent->d_inode, entry);
+
+	if (newdent->d_inode) {
+		ino = newdent->d_inode->i_ino;
+		newdent->d_fsdata = (void *) ctl.fpos;
+		ncp_new_dentry(newdent);
+	}
+
+	if (ctl.idx >= NCP_DIRCACHE_SIZE) {
+		if (ctl.page) {
+			kunmap(ctl.page);
+			SetPageUptodate(ctl.page);
+			UnlockPage(ctl.page);
+			page_cache_release(ctl.page);
+		}
+		ctl.cache = NULL;
+		ctl.idx  -= NCP_DIRCACHE_SIZE;
+		ctl.ofs  += 1;
+		ctl.page  = grab_cache_page(&inode->i_data, ctl.ofs);
+		if (ctl.page)
+			ctl.cache = kmap(ctl.page);
+	}
+	if (ctl.cache) {
+		ctl.cache->dentry[ctl.idx] = newdent;
+		valid = 1;
+	}
+	dput(newdent);
+end_advance:
+	if (!valid)
+		ctl.valid = 0;
+	if (!ctl.filled && (ctl.fpos == filp->f_pos)) {
+		if (!ino)
+			ino = find_inode_number(dentry, &qname);
+		if (!ino)
+			ino = iunique(inode->i_sb, 2);
+		ctl.filled = filldir(dirent, qname.name, qname.len,
+				     filp->f_pos, ino, DT_UNKNOWN);
+		if (!ctl.filled)
+			filp->f_pos += 1;
+	}
+	ctl.fpos += 1;
+	ctl.idx  += 1;
+	*ctrl = ctl;
+	return (ctl.valid || !ctl.filled);
+}
+
+static void
+ncp_read_volume_list(struct file *filp, void *dirent, filldir_t filldir,
+			struct ncp_cache_control *ctl)
+{
+	struct dentry *dentry = filp->f_dentry;
+	struct inode *inode = dentry->d_inode;
+	struct ncp_server *server = NCP_SERVER(inode);
+	struct ncp_volume_info info;
+	struct ncp_entry_info entry;
+	int i;
+
+	DPRINTK("ncp_read_volume_list: pos=%ld\n",
+			(unsigned long) filp->f_pos);
+
+	for (i = 0; i < NCP_NUMBER_OF_VOLUMES; i++) {
+
+		if (ncp_get_volume_info_with_number(server, i, &info) != 0)
+			return;
+		if (!strlen(info.volume_name))
+			continue;
+
+		DPRINTK("ncp_read_volume_list: found vol: %s\n",
+			info.volume_name);
+
+		if (ncp_lookup_volume(server, info.volume_name,
+					&entry.i)) {
+			DPRINTK("ncpfs: could not lookup vol %s\n",
+				info.volume_name);
+			continue;
+		}
+		if (!ncp_fill_cache(filp, dirent, filldir, ctl, &entry))
+			return;
+	}
+}
+
+static void
+ncp_do_readdir(struct file *filp, void *dirent, filldir_t filldir,
+						struct ncp_cache_control *ctl)
+{
+	struct dentry *dentry = filp->f_dentry;
+	struct inode *dir = dentry->d_inode;
+	struct ncp_server *server = NCP_SERVER(dir);
+	struct nw_search_sequence seq;
+	struct ncp_entry_info entry;
+	int err;
+
+	DPRINTK("ncp_do_readdir: %s/%s, fpos=%ld\n",
+		dentry->d_parent->d_name.name, dentry->d_name.name,
+		(unsigned long) filp->f_pos);
+	PPRINTK("ncp_do_readdir: init %s, volnum=%d, dirent=%u\n",
+		dentry->d_name.name, NCP_FINFO(dir)->volNumber,
+		NCP_FINFO(dir)->dirEntNum);
+
+	err = ncp_initialize_search(server, dir, &seq);
+	if (err) {
+		DPRINTK("ncp_do_readdir: init failed, err=%d\n", err);
+		return;
+	}
+	for (;;) {
+		err = ncp_search_for_file_or_subdir(server, &seq, &entry.i);
+		if (err) {
+			DPRINTK("ncp_do_readdir: search failed, err=%d\n", err);
+			return;
+		}
+		if (!ncp_fill_cache(filp, dirent, filldir, ctl, &entry))
+			return;
+	}
+}
+
+int ncp_conn_logged_in(struct super_block *sb)
+{
+	struct ncp_server* server = NCP_SBP(sb);
+	struct nw_info_struct i;
+	int result;
+
+	if (ncp_single_volume(server)) {
+		int len;
+		struct dentry* dent;
+		__u8 __name[NCP_MAXPATHLEN + 1];
+
+		len = sizeof(__name);
+		result = ncp_io2vol(server, __name, &len, server->m.mounted_vol,
+				    strlen(server->m.mounted_vol), 1);
+		if (result)
+			goto out;
+		result = -ENOENT;
+		if (ncp_lookup_volume(server, __name, &i)) {
+			PPRINTK("ncp_conn_logged_in: %s not found\n",
+				server->m.mounted_vol);
+			goto out;
+		}
+		dent = sb->s_root;
+		if (dent) {
+			struct inode* ino = dent->d_inode;
+			if (ino) {
+				NCP_FINFO(ino)->volNumber = i.volNumber;
+				NCP_FINFO(ino)->dirEntNum = i.dirEntNum;
+				NCP_FINFO(ino)->DosDirNum = i.DosDirNum;
+			} else {
+				DPRINTK("ncpfs: sb->s_root->d_inode == NULL!\n");
+			}
+		} else {
+			DPRINTK("ncpfs: sb->s_root == NULL!\n");
+		}
+	}
+	result = 0;
+
+out:
+	return result;
+}
+
+static struct dentry *ncp_lookup(struct inode *dir, struct dentry *dentry)
+{
+	struct ncp_server *server = NCP_SERVER(dir);
+	struct inode *inode = NULL;
+	struct ncp_entry_info finfo;
+	int error, res, len;
+	__u8 __name[NCP_MAXPATHLEN + 1];
+
+	error = -EIO;
+	if (!ncp_conn_valid(server))
+		goto finished;
+
+	PPRINTK("ncp_lookup: server lookup for %s/%s\n",
+		dentry->d_parent->d_name.name, dentry->d_name.name);
+
+	len = sizeof(__name);
+	if (ncp_is_server_root(dir)) {
+		res = ncp_io2vol(server, __name, &len, dentry->d_name.name,
+				 dentry->d_name.len, 1);
+		if (!res)
+			res = ncp_lookup_volume(server, __name, &(finfo.i));
+	} else {
+		res = ncp_io2vol(server, __name, &len, dentry->d_name.name,
+				 dentry->d_name.len, !ncp_preserve_case(dir));
+		if (!res)
+			res = ncp_obtain_info(server, dir, __name, &(finfo.i));
+	}
+	PPRINTK("ncp_lookup: looked for %s/%s, res=%d\n",
+		dentry->d_parent->d_name.name, __name, res);
+	/*
+	 * If we didn't find an entry, make a negative dentry.
+	 */
+	if (res)
+		goto add_entry;
+
+	/*
+	 * Create an inode for the entry.
+	 */
+	finfo.opened = 0;
+	finfo.ino = iunique(dir->i_sb, 2);
+	error = -EACCES;
+	inode = ncp_iget(dir->i_sb, &finfo);
+
+	if (inode) {
+		ncp_new_dentry(dentry);
+add_entry:
+		dentry->d_op = &ncp_dentry_operations;
+		d_add(dentry, inode);
+		error = 0;
+	}
+
+finished:
+	PPRINTK("ncp_lookup: result=%d\n", error);
+	return ERR_PTR(error);
+}
+
+/*
+ * This code is common to create, mkdir, and mknod.
+ */
+static int ncp_instantiate(struct inode *dir, struct dentry *dentry,
+			struct ncp_entry_info *finfo)
+{
+	struct inode *inode;
+	int error = -EINVAL;
+
+	finfo->ino = iunique(dir->i_sb, 2);
+	inode = ncp_iget(dir->i_sb, finfo);
+	if (!inode)
+		goto out_close;
+	d_instantiate(dentry,inode);
+	error = 0;
+out:
+	return error;
+
+out_close:
+	PPRINTK("ncp_instantiate: %s/%s failed, closing file\n",
+		dentry->d_parent->d_name.name, dentry->d_name.name);
+	ncp_close_file(NCP_SERVER(dir), finfo->file_handle);
+	goto out;
+}
+
+int ncp_create_new(struct inode *dir, struct dentry *dentry, int mode,
+		int attributes)
+{
+	struct ncp_server *server = NCP_SERVER(dir);
+	struct ncp_entry_info finfo;
+	int error, result, len;
+	int opmode;
+	__u8 __name[NCP_MAXPATHLEN + 1];
+	
+	PPRINTK("ncp_create_new: creating %s/%s, mode=%x\n",
+		dentry->d_parent->d_name.name, dentry->d_name.name, mode);
+	error = -EIO;
+	if (!ncp_conn_valid(server))
+		goto out;
+
+	ncp_age_dentry(server, dentry);
+	len = sizeof(__name);
+	error = ncp_io2vol(server, __name, &len, dentry->d_name.name,
+			   dentry->d_name.len, !ncp_preserve_case(dir));
+	if (error)
+		goto out;
+
+	error = -EACCES;
+	
+	if (S_ISREG(mode) && 
+	    (server->m.flags & NCP_MOUNT_EXTRAS) && 
+	    (mode & S_IXUGO))
+		attributes |= aSYSTEM | aSHARED;
+	
+	result = ncp_open_create_file_or_subdir(server, dir, __name,
+				OC_MODE_CREATE | OC_MODE_OPEN | OC_MODE_REPLACE,
+				attributes, AR_READ | AR_WRITE, &finfo);
+	opmode = O_RDWR;
+	if (result) {
+		result = ncp_open_create_file_or_subdir(server, dir, __name,
+				OC_MODE_CREATE | OC_MODE_OPEN | OC_MODE_REPLACE,
+				attributes, AR_WRITE, &finfo);
+		if (result) {
+			if (result == 0x87)
+				error = -ENAMETOOLONG;
+			DPRINTK("ncp_create: %s/%s failed\n",
+				dentry->d_parent->d_name.name, dentry->d_name.name);
+			goto out;
+		}
+		opmode = O_WRONLY;
+	}
+	finfo.access = opmode;
+	error = ncp_instantiate(dir, dentry, &finfo);
+out:
+	return error;
+}
+
+static int ncp_create(struct inode *dir, struct dentry *dentry, int mode)
+{
+	return ncp_create_new(dir, dentry, mode, 0);
+}
+
+static int ncp_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+{
+	struct ncp_entry_info finfo;
+	struct ncp_server *server = NCP_SERVER(dir);
+	int error, len;
+	__u8 __name[NCP_MAXPATHLEN + 1];
+
+	DPRINTK("ncp_mkdir: making %s/%s\n",
+		dentry->d_parent->d_name.name, dentry->d_name.name);
+	error = -EIO;
+	if (!ncp_conn_valid(server))
+		goto out;
+
+	ncp_age_dentry(server, dentry);
+	len = sizeof(__name);
+	error = ncp_io2vol(server, __name, &len, dentry->d_name.name,
+			   dentry->d_name.len, !ncp_preserve_case(dir));
+	if (error)
+		goto out;
+
+	error = -EACCES;
+	if (ncp_open_create_file_or_subdir(server, dir, __name,
+					   OC_MODE_CREATE, aDIR, 0xffff,
+					   &finfo) == 0)
+	{
+		error = ncp_instantiate(dir, dentry, &finfo);
+	}
+out:
+	return error;
+}
+
+static int ncp_rmdir(struct inode *dir, struct dentry *dentry)
+{
+	struct ncp_server *server = NCP_SERVER(dir);
+	int error, result, len;
+	__u8 __name[NCP_MAXPATHLEN + 1];
+
+	DPRINTK("ncp_rmdir: removing %s/%s\n",
+		dentry->d_parent->d_name.name, dentry->d_name.name);
+
+	error = -EIO;
+	if (!ncp_conn_valid(server))
+		goto out;
+
+	error = -EBUSY;
+	if (!d_unhashed(dentry))
+		goto out;
+
+	len = sizeof(__name);
+	error = ncp_io2vol(server, __name, &len, dentry->d_name.name,
+			   dentry->d_name.len, !ncp_preserve_case(dir));
+	if (error)
+		goto out;
+
+	result = ncp_del_file_or_subdir(server, dir, __name);
+	switch (result) {
+		case 0x00:
+			error = 0;
+			break;
+		case 0x85:	/* unauthorized to delete file */
+		case 0x8A:	/* unauthorized to delete file */
+			error = -EACCES;
+			break;
+		case 0x8F:
+		case 0x90:	/* read only */
+			error = -EPERM;
+			break;
+		case 0x9F:	/* in use by another client */
+			error = -EBUSY;
+			break;
+		case 0xA0:	/* directory not empty */
+			error = -ENOTEMPTY;
+			break;
+		case 0xFF:	/* someone deleted file */
+			error = -ENOENT;
+			break;
+		default:
+			error = -EACCES;
+			break;
+       	}
+out:
+	return error;
+}
+
+static int ncp_unlink(struct inode *dir, struct dentry *dentry)
+{
+	struct inode *inode = dentry->d_inode;
+	struct ncp_server *server = NCP_SERVER(dir);
+	int error;
+
+	DPRINTK("ncp_unlink: unlinking %s/%s\n",
+		dentry->d_parent->d_name.name, dentry->d_name.name);
+	
+	error = -EIO;
+	if (!ncp_conn_valid(server))
+		goto out;
+
+	/*
+	 * Check whether to close the file ...
+	 */
+	if (inode) {
+		PPRINTK("ncp_unlink: closing file\n");
+		ncp_make_closed(inode);
+	}
+
+	error = ncp_del_file_or_subdir2(server, dentry);
+#ifdef CONFIG_NCPFS_STRONG
+	/* 9C is Invalid path.. It should be 8F, 90 - read only, but
+	   it is not :-( */
+	if ((error == 0x9C || error == 0x90) && server->m.flags & NCP_MOUNT_STRONG) { /* R/O */
+		error = ncp_force_unlink(dir, dentry);
+	}
+#endif
+	switch (error) {
+		case 0x00:
+			DPRINTK("ncp: removed %s/%s\n",
+				dentry->d_parent->d_name.name, dentry->d_name.name);
+			break;
+		case 0x85:
+		case 0x8A:
+			error = -EACCES;
+			break;
+		case 0x8D:	/* some files in use */
+		case 0x8E:	/* all files in use */
+			error = -EBUSY;
+			break;
+		case 0x8F:	/* some read only */
+		case 0x90:	/* all read only */
+		case 0x9C:	/* !!! returned when in-use or read-only by NW4 */
+			error = -EPERM;
+			break;
+		case 0xFF:
+			error = -ENOENT;
+			break;
+		default:
+			error = -EACCES;
+			break;
+	}
+		
+out:
+	return error;
+}
+
+static int ncp_rename(struct inode *old_dir, struct dentry *old_dentry,
+		      struct inode *new_dir, struct dentry *new_dentry)
+{
+	struct ncp_server *server = NCP_SERVER(old_dir);
+	int error;
+	int old_len, new_len;
+	__u8 __old_name[NCP_MAXPATHLEN + 1], __new_name[NCP_MAXPATHLEN + 1];
+
+	DPRINTK("ncp_rename: %s/%s to %s/%s\n",
+		old_dentry->d_parent->d_name.name, old_dentry->d_name.name,
+		new_dentry->d_parent->d_name.name, new_dentry->d_name.name);
+
+	error = -EIO;
+	if (!ncp_conn_valid(server))
+		goto out;
+
+	ncp_age_dentry(server, old_dentry);
+	ncp_age_dentry(server, new_dentry);
+
+	old_len = sizeof(__old_name);
+	error = ncp_io2vol(server, __old_name, &old_len,
+			   old_dentry->d_name.name, old_dentry->d_name.len,
+			   !ncp_preserve_case(old_dir));
+	if (error)
+		goto out;
+
+	new_len = sizeof(__new_name);
+	error = ncp_io2vol(server, __new_name, &new_len,
+			   new_dentry->d_name.name, new_dentry->d_name.len,
+			   !ncp_preserve_case(new_dir));
+	if (error)
+		goto out;
+
+	error = ncp_ren_or_mov_file_or_subdir(server, old_dir, __old_name,
+						      new_dir, __new_name);
+#ifdef CONFIG_NCPFS_STRONG
+	if ((error == 0x90 || error == 0x8B || error == -EACCES) &&
+			server->m.flags & NCP_MOUNT_STRONG) {	/* RO */
+		error = ncp_force_rename(old_dir, old_dentry, __old_name,
+					 new_dir, new_dentry, __new_name);
+	}
+#endif
+	switch (error) {
+		case 0x00:
+               	        DPRINTK("ncp renamed %s -> %s.\n",
+                                old_dentry->d_name.name,new_dentry->d_name.name);
+			break;
+		case 0x9E:
+			error = -ENAMETOOLONG;
+			break;
+		case 0xFF:
+			error = -ENOENT;
+			break;
+		default:
+			error = -EACCES;
+			break;
+	}
+out:
+	return error;
+}
+
+/* The following routines are taken directly from msdos-fs */
+
+/* Linear day numbers of the respective 1sts in non-leap years. */
+
+static int day_n[] =
+{0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 0, 0, 0, 0};
+/* Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec */
+
+
+extern struct timezone sys_tz;
+
+static int utc2local(int time)
+{
+	return time - sys_tz.tz_minuteswest * 60;
+}
+
+static int local2utc(int time)
+{
+	return time + sys_tz.tz_minuteswest * 60;
+}
+
+/* Convert a MS-DOS time/date pair to a UNIX date (seconds since 1 1 70). */
+int
+ncp_date_dos2unix(unsigned short time, unsigned short date)
+{
+	int month, year, secs;
+
+	/* first subtract and mask after that... Otherwise, if
+	   date == 0, bad things happen */
+	month = ((date >> 5) - 1) & 15;
+	year = date >> 9;
+	secs = (time & 31) * 2 + 60 * ((time >> 5) & 63) + (time >> 11) * 3600 +
+		86400 * ((date & 31) - 1 + day_n[month] + (year / 4) + 
+		year * 365 - ((year & 3) == 0 && month < 2 ? 1 : 0) + 3653);
+	/* days since 1.1.70 plus 80's leap day */
+	return local2utc(secs);
+}
+
+
+/* Convert linear UNIX date to a MS-DOS time/date pair. */
+void
+ncp_date_unix2dos(int unix_date, unsigned short *time, unsigned short *date)
+{
+	int day, year, nl_day, month;
+
+	unix_date = utc2local(unix_date);
+	*time = (unix_date % 60) / 2 + (((unix_date / 60) % 60) << 5) +
+	    (((unix_date / 3600) % 24) << 11);
+	day = unix_date / 86400 - 3652;
+	year = day / 365;
+	if ((year + 3) / 4 + 365 * year > day)
+		year--;
+	day -= (year + 3) / 4 + 365 * year;
+	if (day == 59 && !(year & 3)) {
+		nl_day = day;
+		month = 2;
+	} else {
+		nl_day = (year & 3) || day <= 59 ? day : day - 1;
+		for (month = 0; month < 12; month++)
+			if (day_n[month] > nl_day)
+				break;
+	}
+	*date = nl_day - day_n[month - 1] + 1 + (month << 5) + (year << 9);
+}
diff --git a/fs/ncpfs/file.c b/fs/ncpfs/file.c
new file mode 100644
index 00000000000000..1f70ec451ce709
--- /dev/null
+++ b/fs/ncpfs/file.c
@@ -0,0 +1,296 @@
+/*
+ *  file.c
+ *
+ *  Copyright (C) 1995, 1996 by Volker Lendecke
+ *  Modified 1997 Peter Waltenberg, Bill Hawes, David Woodhouse for 2.1 dcache
+ *
+ */
+
+#include <asm/uaccess.h>
+#include <asm/system.h>
+
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/fcntl.h>
+#include <linux/stat.h>
+#include <linux/mm.h>
+#include <linux/locks.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+
+#include <linux/ncp_fs.h>
+#include "ncplib_kernel.h"
+
+static int ncp_fsync(struct file *file, struct dentry *dentry, int datasync)
+{
+	return 0;
+}
+
+/*
+ * Open a file with the specified read/write mode.
+ */
+int ncp_make_open(struct inode *inode, int right)
+{
+	int error;
+	int access;
+
+	error = -EINVAL;
+	if (!inode) {
+		printk(KERN_ERR "ncp_make_open: got NULL inode\n");
+		goto out;
+	}
+
+	DPRINTK("ncp_make_open: opened=%d, volume # %u, dir entry # %u\n",
+		atomic_read(&NCP_FINFO(inode)->opened), 
+		NCP_FINFO(inode)->volNumber, 
+		NCP_FINFO(inode)->dirEntNum);
+	error = -EACCES;
+	down(&NCP_FINFO(inode)->open_sem);
+	if (!atomic_read(&NCP_FINFO(inode)->opened)) {
+		struct ncp_entry_info finfo;
+		int result;
+
+		finfo.i.dirEntNum = NCP_FINFO(inode)->dirEntNum;
+		finfo.i.volNumber = NCP_FINFO(inode)->volNumber;
+		/* tries max. rights */
+		finfo.access = O_RDWR;
+		result = ncp_open_create_file_or_subdir(NCP_SERVER(inode),
+					NULL, NULL, OC_MODE_OPEN,
+					0, AR_READ | AR_WRITE, &finfo);
+		if (!result)
+			goto update;
+		/* RDWR did not succeeded, try readonly or writeonly as requested */
+		switch (right) {
+			case O_RDONLY:
+				finfo.access = O_RDONLY;
+				result = ncp_open_create_file_or_subdir(NCP_SERVER(inode),
+					NULL, NULL, OC_MODE_OPEN,
+					0, AR_READ, &finfo);
+				break;
+			case O_WRONLY:
+				finfo.access = O_WRONLY;
+				result = ncp_open_create_file_or_subdir(NCP_SERVER(inode),
+					NULL, NULL, OC_MODE_OPEN,
+					0, AR_WRITE, &finfo);
+				break;
+		}
+		if (result) {
+			PPRINTK("ncp_make_open: failed, result=%d\n", result);
+			goto out_unlock;
+		}
+		/*
+		 * Update the inode information.
+		 */
+	update:
+		ncp_update_inode(inode, &finfo);
+		atomic_set(&NCP_FINFO(inode)->opened, 1);
+	}
+
+	access = NCP_FINFO(inode)->access;
+	PPRINTK("ncp_make_open: file open, access=%x\n", access);
+	if (access == right || access == O_RDWR) {
+		atomic_inc(&NCP_FINFO(inode)->opened);
+		error = 0;
+	}
+
+out_unlock:
+	up(&NCP_FINFO(inode)->open_sem);
+out:
+	return error;
+}
+
+static ssize_t
+ncp_file_read(struct file *file, char *buf, size_t count, loff_t *ppos)
+{
+	struct dentry *dentry = file->f_dentry;
+	struct inode *inode = dentry->d_inode;
+	size_t already_read = 0;
+	off_t pos;
+	size_t bufsize;
+	int error;
+	void* freepage;
+	size_t freelen;
+
+	DPRINTK("ncp_file_read: enter %s/%s\n",
+		dentry->d_parent->d_name.name, dentry->d_name.name);
+
+	error = -EIO;
+	if (!ncp_conn_valid(NCP_SERVER(inode)))
+		goto out;
+	error = -EINVAL;
+	if (!S_ISREG(inode->i_mode)) {
+		DPRINTK("ncp_file_read: read from non-file, mode %07o\n",
+			inode->i_mode);
+		goto out;
+	}
+
+	pos = *ppos;
+/* leave it out on server ...
+	if (pos + count > inode->i_size) {
+		count = inode->i_size - pos;
+	}
+*/
+	error = 0;
+	if (!count)	/* size_t is never < 0 */
+		goto out;
+
+	error = ncp_make_open(inode, O_RDONLY);
+	if (error) {
+		DPRINTK(KERN_ERR "ncp_file_read: open failed, error=%d\n", error);
+		goto out;
+	}
+
+	bufsize = NCP_SERVER(inode)->buffer_size;
+
+	error = -EIO;
+	freelen = ncp_read_bounce_size(bufsize);
+	freepage = vmalloc(freelen);
+	if (!freepage)
+		goto outrel;
+	error = 0;
+	/* First read in as much as possible for each bufsize. */
+	while (already_read < count) {
+		int read_this_time;
+		size_t to_read = min_t(unsigned int,
+				     bufsize - (pos % bufsize),
+				     count - already_read);
+
+		error = ncp_read_bounce(NCP_SERVER(inode),
+			 	NCP_FINFO(inode)->file_handle,
+				pos, to_read, buf, &read_this_time, 
+				freepage, freelen);
+		if (error) {
+			error = -EIO;	/* NW errno -> Linux errno */
+			break;
+		}
+		pos += read_this_time;
+		buf += read_this_time;
+		already_read += read_this_time;
+
+		if (read_this_time != to_read) {
+			break;
+		}
+	}
+	vfree(freepage);
+
+	*ppos = pos;
+
+	if (!IS_RDONLY(inode)) {
+		inode->i_atime = CURRENT_TIME;
+	}
+	
+	DPRINTK("ncp_file_read: exit %s/%s\n",
+		dentry->d_parent->d_name.name, dentry->d_name.name);
+outrel:
+	ncp_inode_close(inode);		
+out:
+	return already_read ? already_read : error;
+}
+
+static ssize_t
+ncp_file_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
+{
+	struct dentry *dentry = file->f_dentry;
+	struct inode *inode = dentry->d_inode;
+	size_t already_written = 0;
+	off_t pos;
+	size_t bufsize;
+	int errno;
+	void* bouncebuffer;
+
+	DPRINTK("ncp_file_write: enter %s/%s\n",
+		dentry->d_parent->d_name.name, dentry->d_name.name);
+	errno = -EIO;
+	if (!ncp_conn_valid(NCP_SERVER(inode)))
+		goto out;
+	if (!S_ISREG(inode->i_mode)) {
+		DPRINTK("ncp_file_write: write to non-file, mode %07o\n",
+			inode->i_mode);
+		return -EINVAL;
+	}
+
+	errno = 0;
+	if (!count)
+		goto out;
+	errno = ncp_make_open(inode, O_WRONLY);
+	if (errno) {
+		DPRINTK(KERN_ERR "ncp_file_write: open failed, error=%d\n", errno);
+		return errno;
+	}
+	pos = *ppos;
+
+	if (file->f_flags & O_APPEND) {
+		pos = inode->i_size;
+	}
+	bufsize = NCP_SERVER(inode)->buffer_size;
+
+	already_written = 0;
+
+	bouncebuffer = vmalloc(bufsize);
+	if (!bouncebuffer) {
+		errno = -EIO;	/* -ENOMEM */
+		goto outrel;
+	}
+	while (already_written < count) {
+		int written_this_time;
+		size_t to_write = min_t(unsigned int,
+				      bufsize - (pos % bufsize),
+				      count - already_written);
+
+		if (copy_from_user(bouncebuffer, buf, to_write)) {
+			errno = -EFAULT;
+			break;
+		}
+		if (ncp_write_kernel(NCP_SERVER(inode), 
+		    NCP_FINFO(inode)->file_handle,
+		    pos, to_write, bouncebuffer, &written_this_time) != 0) {
+			errno = -EIO;
+			break;
+		}
+		pos += written_this_time;
+		buf += written_this_time;
+		already_written += written_this_time;
+
+		if (written_this_time != to_write) {
+			break;
+		}
+	}
+	vfree(bouncebuffer);
+	inode->i_mtime = inode->i_atime = CURRENT_TIME;
+	
+	*ppos = pos;
+
+	if (pos > inode->i_size) {
+		inode->i_size = pos;
+	}
+	DPRINTK("ncp_file_write: exit %s/%s\n",
+		dentry->d_parent->d_name.name, dentry->d_name.name);
+outrel:
+	ncp_inode_close(inode);		
+out:
+	return already_written ? already_written : errno;
+}
+
+static int ncp_release(struct inode *inode, struct file *file) {
+	if (ncp_make_closed(inode)) {
+		DPRINTK("ncp_release: failed to close\n");
+	}
+	return 0;
+}
+
+struct file_operations ncp_file_operations =
+{
+	llseek:		generic_file_llseek,
+	read:		ncp_file_read,
+	write:		ncp_file_write,
+	ioctl:		ncp_ioctl,
+	mmap:		ncp_mmap,
+	release:	ncp_release,
+	fsync:		ncp_fsync,
+};
+
+struct inode_operations ncp_file_inode_operations =
+{
+	setattr:	ncp_notify_change,
+};
diff --git a/fs/ncpfs/inode.c b/fs/ncpfs/inode.c
new file mode 100644
index 00000000000000..78d91a230d1859
--- /dev/null
+++ b/fs/ncpfs/inode.c
@@ -0,0 +1,733 @@
+/*
+ *  inode.c
+ *
+ *  Copyright (C) 1995, 1996 by Volker Lendecke
+ *  Modified for big endian by J.F. Chadima and David S. Miller
+ *  Modified 1997 Peter Waltenberg, Bill Hawes, David Woodhouse for 2.1 dcache
+ *  Modified 1998 Wolfram Pienkoss for NLS
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+
+#include <asm/system.h>
+#include <asm/uaccess.h>
+#include <asm/byteorder.h>
+
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/string.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <linux/file.h>
+#include <linux/fcntl.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/init.h>
+
+#include <linux/ncp_fs.h>
+
+#include "ncplib_kernel.h"
+
+static void ncp_delete_inode(struct inode *);
+static void ncp_put_super(struct super_block *);
+static int  ncp_statfs(struct super_block *, struct statfs *);
+
+static struct super_operations ncp_sops =
+{
+	put_inode:	force_delete,
+	delete_inode:	ncp_delete_inode,
+	put_super:	ncp_put_super,
+	statfs:		ncp_statfs,
+};
+
+extern struct dentry_operations ncp_root_dentry_operations;
+#ifdef CONFIG_NCPFS_EXTRAS
+extern struct address_space_operations ncp_symlink_aops;
+extern int ncp_symlink(struct inode*, struct dentry*, const char*);
+#endif
+
+/*
+ * Fill in the ncpfs-specific information in the inode.
+ */
+void ncp_update_inode(struct inode *inode, struct ncp_entry_info *nwinfo)
+{
+	NCP_FINFO(inode)->DosDirNum = nwinfo->i.DosDirNum;
+	NCP_FINFO(inode)->dirEntNum = nwinfo->i.dirEntNum;
+	NCP_FINFO(inode)->volNumber = nwinfo->i.volNumber;
+
+#ifdef CONFIG_NCPFS_STRONG
+	NCP_FINFO(inode)->nwattr = nwinfo->i.attributes;
+#endif
+	NCP_FINFO(inode)->access = nwinfo->access;
+	NCP_FINFO(inode)->server_file_handle = nwinfo->server_file_handle;
+	memcpy(NCP_FINFO(inode)->file_handle, nwinfo->file_handle,
+			sizeof(nwinfo->file_handle));
+	DPRINTK("ncp_update_inode: updated %s, volnum=%d, dirent=%u\n",
+		nwinfo->i.entryName, NCP_FINFO(inode)->volNumber,
+		NCP_FINFO(inode)->dirEntNum);
+}
+
+void ncp_update_inode2(struct inode* inode, struct ncp_entry_info *nwinfo)
+{
+	struct nw_info_struct *nwi = &nwinfo->i;
+	struct ncp_server *server = NCP_SERVER(inode);
+
+	if (!atomic_read(&NCP_FINFO(inode)->opened)) {
+#ifdef CONFIG_NCPFS_STRONG
+		NCP_FINFO(inode)->nwattr = nwi->attributes;
+#endif
+		if (nwi->attributes & aDIR) {
+			inode->i_mode = server->m.dir_mode;
+			inode->i_size = NCP_BLOCK_SIZE;
+		} else {
+			inode->i_mode = server->m.file_mode;
+			inode->i_size = le32_to_cpu(nwi->dataStreamSize);
+#ifdef CONFIG_NCPFS_EXTRAS
+			if ((server->m.flags & (NCP_MOUNT_EXTRAS|NCP_MOUNT_SYMLINKS)) && (nwi->attributes & aSHARED)) {
+				switch (nwi->attributes & (aHIDDEN|aSYSTEM)) {
+					case aHIDDEN:
+						if (server->m.flags & NCP_MOUNT_SYMLINKS) {
+							if ( /* (inode->i_size >= NCP_MIN_SYMLINK_SIZE)
+							 && */ (inode->i_size <= NCP_MAX_SYMLINK_SIZE)) {
+								inode->i_mode = (inode->i_mode & ~S_IFMT) | S_IFLNK;
+								break;
+							}
+						}
+						/* FALLTHROUGH */
+					case 0:
+						if (server->m.flags & NCP_MOUNT_EXTRAS)
+							inode->i_mode |= 0444;
+						break;
+					case aSYSTEM:
+						if (server->m.flags & NCP_MOUNT_EXTRAS)
+							inode->i_mode |= (inode->i_mode >> 2) & 0111;
+						break;
+					/* case aSYSTEM|aHIDDEN: */
+					default:
+						/* reserved combination */
+						break;
+				}
+			}
+#endif
+		}
+		if (nwi->attributes & aRONLY) inode->i_mode &= ~0222;
+	}
+	inode->i_blocks = (inode->i_size + NCP_BLOCK_SIZE - 1) >> NCP_BLOCK_SHIFT;
+
+	inode->i_mtime = ncp_date_dos2unix(le16_to_cpu(nwi->modifyTime),
+					   le16_to_cpu(nwi->modifyDate));
+	inode->i_ctime = ncp_date_dos2unix(le16_to_cpu(nwi->creationTime),
+					   le16_to_cpu(nwi->creationDate));
+	inode->i_atime = ncp_date_dos2unix(0, le16_to_cpu(nwi->lastAccessDate));
+
+	NCP_FINFO(inode)->DosDirNum = nwi->DosDirNum;
+	NCP_FINFO(inode)->dirEntNum = nwi->dirEntNum;
+	NCP_FINFO(inode)->volNumber = nwi->volNumber;
+}
+
+/*
+ * Fill in the inode based on the ncp_entry_info structure.
+ */
+static void ncp_set_attr(struct inode *inode, struct ncp_entry_info *nwinfo)
+{
+	struct nw_info_struct *nwi = &nwinfo->i;
+	struct ncp_server *server = NCP_SERVER(inode);
+
+	if (nwi->attributes & aDIR) {
+		inode->i_mode = server->m.dir_mode;
+		/* for directories dataStreamSize seems to be some
+		   Object ID ??? */
+		inode->i_size = NCP_BLOCK_SIZE;
+	} else {
+		inode->i_mode = server->m.file_mode;
+		inode->i_size = le32_to_cpu(nwi->dataStreamSize);
+#ifdef CONFIG_NCPFS_EXTRAS
+		if ((server->m.flags & (NCP_MOUNT_EXTRAS|NCP_MOUNT_SYMLINKS)) 
+		 && (nwi->attributes & aSHARED)) {
+			switch (nwi->attributes & (aHIDDEN|aSYSTEM)) {
+				case aHIDDEN:
+					if (server->m.flags & NCP_MOUNT_SYMLINKS) {
+						if (/* (inode->i_size >= NCP_MIN_SYMLINK_SIZE)
+						 && */ (inode->i_size <= NCP_MAX_SYMLINK_SIZE)) {
+							inode->i_mode = (inode->i_mode & ~S_IFMT) | S_IFLNK;
+							break;
+						}
+					}
+					/* FALLTHROUGH */
+				case 0:
+					if (server->m.flags & NCP_MOUNT_EXTRAS)
+						inode->i_mode |= 0444;
+					break;
+				case aSYSTEM:
+					if (server->m.flags & NCP_MOUNT_EXTRAS)
+						inode->i_mode |= (inode->i_mode >> 2) & 0111;
+					break;
+				/* case aSYSTEM|aHIDDEN: */
+				default:
+					/* reserved combination */
+					break;
+			}
+		}
+#endif
+	}
+	if (nwi->attributes & aRONLY) inode->i_mode &= ~0222;
+
+	DDPRINTK("ncp_read_inode: inode->i_mode = %u\n", inode->i_mode);
+
+	inode->i_nlink = 1;
+	inode->i_uid = server->m.uid;
+	inode->i_gid = server->m.gid;
+	inode->i_rdev = 0;
+	inode->i_blksize = NCP_BLOCK_SIZE;
+
+	inode->i_blocks = (inode->i_size + NCP_BLOCK_SIZE - 1) >> NCP_BLOCK_SHIFT;
+
+	inode->i_mtime = ncp_date_dos2unix(le16_to_cpu(nwi->modifyTime),
+			  		   le16_to_cpu(nwi->modifyDate));
+	inode->i_ctime = ncp_date_dos2unix(le16_to_cpu(nwi->creationTime),
+			    		   le16_to_cpu(nwi->creationDate));
+	inode->i_atime = ncp_date_dos2unix(0,
+					   le16_to_cpu(nwi->lastAccessDate));
+	ncp_update_inode(inode, nwinfo);
+}
+
+static struct inode_operations ncp_symlink_inode_operations = {
+	readlink:	page_readlink,
+	follow_link:	page_follow_link,
+	setattr:	ncp_notify_change,
+};
+
+/*
+ * Get a new inode.
+ */
+struct inode * 
+ncp_iget(struct super_block *sb, struct ncp_entry_info *info)
+{
+	struct inode *inode;
+
+	if (info == NULL) {
+		printk(KERN_ERR "ncp_iget: info is NULL\n");
+		return NULL;
+	}
+
+	inode = new_inode(sb);
+	if (inode) {
+		init_MUTEX(&NCP_FINFO(inode)->open_sem);
+		atomic_set(&NCP_FINFO(inode)->opened, info->opened);
+
+		inode->i_ino = info->ino;
+		ncp_set_attr(inode, info);
+		if (S_ISREG(inode->i_mode)) {
+			inode->i_op = &ncp_file_inode_operations;
+			inode->i_fop = &ncp_file_operations;
+		} else if (S_ISDIR(inode->i_mode)) {
+			inode->i_op = &ncp_dir_inode_operations;
+			inode->i_fop = &ncp_dir_operations;
+#ifdef CONFIG_NCPFS_EXTRAS
+		} else if (S_ISLNK(inode->i_mode)) {
+			inode->i_op = &ncp_symlink_inode_operations;
+			inode->i_data.a_ops = &ncp_symlink_aops;
+#endif
+		}
+		insert_inode_hash(inode);
+	} else
+		printk(KERN_ERR "ncp_iget: iget failed!\n");
+	return inode;
+}
+
+static void
+ncp_delete_inode(struct inode *inode)
+{
+	if (S_ISDIR(inode->i_mode)) {
+		DDPRINTK("ncp_delete_inode: put directory %ld\n", inode->i_ino);
+	}
+
+	if (ncp_make_closed(inode) != 0) {
+		/* We can't do anything but complain. */
+		printk(KERN_ERR "ncp_delete_inode: could not close\n");
+	}
+	clear_inode(inode);
+}
+
+struct super_block *
+ncp_read_super(struct super_block *sb, void *raw_data, int silent)
+{
+	struct ncp_mount_data_kernel data;
+	struct ncp_server *server;
+	struct file *ncp_filp;
+	struct inode *root_inode;
+	struct inode *sock_inode;
+	struct socket *sock;
+	int error;
+	int default_bufsize;
+#ifdef CONFIG_NCPFS_PACKET_SIGNING
+	int options;
+#endif
+	struct ncp_entry_info finfo;
+
+	if (raw_data == NULL)
+		goto out_no_data;
+	switch (*(int*)raw_data) {
+		case NCP_MOUNT_VERSION:
+			{
+				struct ncp_mount_data* md = (struct ncp_mount_data*)raw_data;
+
+				data.flags = md->flags;
+				data.int_flags = NCP_IMOUNT_LOGGEDIN_POSSIBLE;
+				data.mounted_uid = md->mounted_uid;
+				data.wdog_pid = md->wdog_pid;
+				data.ncp_fd = md->ncp_fd;
+				data.time_out = md->time_out;
+				data.retry_count = md->retry_count;
+				data.uid = md->uid;
+				data.gid = md->gid;
+				data.file_mode = md->file_mode;
+				data.dir_mode = md->dir_mode;
+				memcpy(data.mounted_vol, md->mounted_vol,
+					NCP_VOLNAME_LEN+1);
+			}
+			break;
+		case NCP_MOUNT_VERSION_V4:
+			{
+				struct ncp_mount_data_v4* md = (struct ncp_mount_data_v4*)raw_data;
+
+				data.flags = md->flags;
+				data.int_flags = 0;
+				data.mounted_uid = md->mounted_uid;
+				data.wdog_pid = md->wdog_pid;
+				data.ncp_fd = md->ncp_fd;
+				data.time_out = md->time_out;
+				data.retry_count = md->retry_count;
+				data.uid = md->uid;
+				data.gid = md->gid;
+				data.file_mode = md->file_mode;
+				data.dir_mode = md->dir_mode;
+				data.mounted_vol[0] = 0;
+			}
+			break;
+		default:
+			goto out_bad_mount;
+	}
+	ncp_filp = fget(data.ncp_fd);
+	if (!ncp_filp)
+		goto out_bad_file;
+	sock_inode = ncp_filp->f_dentry->d_inode;
+	if (!S_ISSOCK(sock_inode->i_mode))
+		goto out_bad_file2;
+	sock = &sock_inode->u.socket_i;
+	if (!sock)
+		goto out_bad_file2;
+		
+	if (sock->type == SOCK_STREAM)
+		default_bufsize = 61440;
+	else
+		default_bufsize = 1024;
+
+	sb->s_blocksize = 1024;	/* Eh...  Is this correct? */
+	sb->s_blocksize_bits = 10;
+	sb->s_magic = NCP_SUPER_MAGIC;
+	sb->s_op = &ncp_sops;
+
+	server = NCP_SBP(sb);
+	memset(server, 0, sizeof(*server));
+
+	server->ncp_filp = ncp_filp;
+/*	server->lock = 0;	*/
+	init_MUTEX(&server->sem);
+	server->packet = NULL;
+/*	server->buffer_size = 0;	*/
+/*	server->conn_status = 0;	*/
+/*	server->root_dentry = NULL;	*/
+/*	server->root_setuped = 0;	*/
+#ifdef CONFIG_NCPFS_PACKET_SIGNING
+/*	server->sign_wanted = 0;	*/
+/*	server->sign_active = 0;	*/
+#endif
+	server->auth.auth_type = NCP_AUTH_NONE;
+/*	server->auth.object_name_len = 0;	*/
+/*	server->auth.object_name = NULL;	*/
+/*	server->auth.object_type = 0;		*/
+/*	server->priv.len = 0;			*/
+/*	server->priv.data = NULL;		*/
+
+	server->m = data;
+	/* Althought anything producing this is buggy, it happens
+	   now because of PATH_MAX changes.. */
+	if (server->m.time_out < 1) {
+		server->m.time_out = 10;
+		printk(KERN_INFO "You need to recompile your ncpfs utils..\n");
+	}
+	server->m.time_out = server->m.time_out * HZ / 100;
+	server->m.file_mode = (server->m.file_mode &
+			       (S_IRWXU | S_IRWXG | S_IRWXO)) | S_IFREG;
+	server->m.dir_mode = (server->m.dir_mode &
+			      (S_IRWXU | S_IRWXG | S_IRWXO)) | S_IFDIR;
+
+#ifdef CONFIG_NCPFS_NLS
+	/* load the default NLS charsets */
+	server->nls_vol = load_nls_default();
+	server->nls_io = load_nls_default();
+#endif /* CONFIG_NCPFS_NLS */
+
+	server->dentry_ttl = 0;	/* no caching */
+
+#undef NCP_PACKET_SIZE
+#define NCP_PACKET_SIZE 65536
+	server->packet_size = NCP_PACKET_SIZE;
+	server->packet = vmalloc(NCP_PACKET_SIZE);
+	if (server->packet == NULL)
+		goto out_no_packet;
+
+	ncp_lock_server(server);
+	error = ncp_connect(server);
+	ncp_unlock_server(server);
+	if (error < 0)
+		goto out_no_connect;
+	DPRINTK("ncp_read_super: NCP_SBP(sb) = %x\n", (int) NCP_SBP(sb));
+
+#ifdef CONFIG_NCPFS_PACKET_SIGNING
+	if (ncp_negotiate_size_and_options(server, default_bufsize,
+		NCP_DEFAULT_OPTIONS, &(server->buffer_size), &options) == 0)
+	{
+		if (options != NCP_DEFAULT_OPTIONS)
+		{
+			if (ncp_negotiate_size_and_options(server, 
+				default_bufsize,
+				options & 2, 
+				&(server->buffer_size), &options) != 0)
+				
+			{
+				goto out_no_bufsize;
+			}
+		}
+		if (options & 2)
+			server->sign_wanted = 1;
+	}
+	else 
+#endif	/* CONFIG_NCPFS_PACKET_SIGNING */
+	if (ncp_negotiate_buffersize(server, default_bufsize,
+  				     &(server->buffer_size)) != 0)
+		goto out_no_bufsize;
+	DPRINTK("ncpfs: bufsize = %d\n", server->buffer_size);
+
+	memset(&finfo, 0, sizeof(finfo));
+	finfo.i.attributes	= aDIR;
+	finfo.i.dataStreamSize	= NCP_BLOCK_SIZE;
+	finfo.i.dirEntNum	= 0;
+	finfo.i.DosDirNum	= 0;
+#ifdef CONFIG_NCPFS_SMALLDOS
+	finfo.i.NSCreator	= NW_NS_DOS;
+#endif
+	finfo.i.volNumber	= NCP_NUMBER_OF_VOLUMES + 1;	/* illegal volnum */
+	/* set dates of mountpoint to Jan 1, 1986; 00:00 */
+	finfo.i.creationTime	= finfo.i.modifyTime
+				= cpu_to_le16(0x0000);
+	finfo.i.creationDate	= finfo.i.modifyDate
+				= finfo.i.lastAccessDate
+				= cpu_to_le16(0x0C21);
+	finfo.i.nameLen		= 0;
+	finfo.i.entryName[0]	= '\0';
+
+	finfo.opened		= 0;
+	finfo.ino		= 2;	/* tradition */
+
+	server->name_space[finfo.i.volNumber] = NW_NS_DOS;
+        root_inode = ncp_iget(sb, &finfo);
+        if (!root_inode)
+		goto out_no_root;
+	DPRINTK("ncp_read_super: root vol=%d\n", NCP_FINFO(root_inode)->volNumber);
+	sb->s_root = d_alloc_root(root_inode);
+        if (!sb->s_root)
+		goto out_no_root;
+	sb->s_root->d_op = &ncp_root_dentry_operations;
+	return sb;
+
+out_no_root:
+	printk(KERN_ERR "ncp_read_super: get root inode failed\n");
+	iput(root_inode);
+	goto out_disconnect;
+out_no_bufsize:
+	printk(KERN_ERR "ncp_read_super: could not get bufsize\n");
+out_disconnect:
+	ncp_lock_server(server);
+	ncp_disconnect(server);
+	ncp_unlock_server(server);
+	goto out_free_packet;
+out_no_connect:
+	printk(KERN_ERR "ncp_read_super: Failed connection, error=%d\n", error);
+out_free_packet:
+	vfree(server->packet);
+	goto out_free_server;
+out_no_packet:
+	printk(KERN_ERR "ncp_read_super: could not alloc packet\n");
+out_free_server:
+#ifdef CONFIG_NCPFS_NLS
+	unload_nls(server->nls_io);
+	unload_nls(server->nls_vol);
+#endif
+	/* 23/12/1998 Marcin Dalecki <dalecki@cs.net.pl>:
+	 * 
+	 * The previously used put_filp(ncp_filp); was bogous, since
+	 * it doesn't proper unlocking.
+	 */
+	fput(ncp_filp);
+	goto out;
+
+out_bad_file2:
+	fput(ncp_filp);
+out_bad_file:
+	printk(KERN_ERR "ncp_read_super: invalid ncp socket\n");
+	goto out;
+out_bad_mount:
+	printk(KERN_INFO "ncp_read_super: kernel requires mount version %d\n",
+		NCP_MOUNT_VERSION);
+	goto out;
+out_no_data:
+	printk(KERN_ERR "ncp_read_super: missing data argument\n");
+out:
+	return NULL;
+}
+
+static void ncp_put_super(struct super_block *sb)
+{
+	struct ncp_server *server = NCP_SBP(sb);
+
+	ncp_lock_server(server);
+	ncp_disconnect(server);
+	ncp_unlock_server(server);
+
+#ifdef CONFIG_NCPFS_NLS
+	/* unload the NLS charsets */
+	if (server->nls_vol)
+	{
+		unload_nls(server->nls_vol);
+		server->nls_vol = NULL;
+	}
+	if (server->nls_io)
+	{
+		unload_nls(server->nls_io);
+		server->nls_io = NULL;
+	}
+#endif /* CONFIG_NCPFS_NLS */
+
+	fput(server->ncp_filp);
+	kill_proc(server->m.wdog_pid, SIGTERM, 1);
+
+	if (server->priv.data) 
+		ncp_kfree_s(server->priv.data, server->priv.len);
+	if (server->auth.object_name)
+		ncp_kfree_s(server->auth.object_name, server->auth.object_name_len);
+	vfree(server->packet);
+
+}
+
+static int ncp_statfs(struct super_block *sb, struct statfs *buf)
+{
+	/* We cannot say how much disk space is left on a mounted
+	   NetWare Server, because free space is distributed over
+	   volumes, and the current user might have disk quotas. So
+	   free space is not that simple to determine. Our decision
+	   here is to err conservatively. */
+
+	buf->f_type = NCP_SUPER_MAGIC;
+	buf->f_bsize = NCP_BLOCK_SIZE;
+	buf->f_blocks = 0;
+	buf->f_bfree = 0;
+	buf->f_bavail = 0;
+	buf->f_namelen = 12;
+	return 0;
+}
+
+int ncp_notify_change(struct dentry *dentry, struct iattr *attr)
+{
+	struct inode *inode = dentry->d_inode;
+	int result = 0;
+	int info_mask;
+	struct nw_modify_dos_info info;
+	struct ncp_server *server;
+
+	result = -EIO;
+
+	server = NCP_SERVER(inode);
+	if ((!server) || !ncp_conn_valid(server))
+		goto out;
+
+	/* ageing the dentry to force validation */
+	ncp_age_dentry(server, dentry);
+
+	result = inode_change_ok(inode, attr);
+	if (result < 0)
+		goto out;
+
+	result = -EPERM;
+	if (((attr->ia_valid & ATTR_UID) &&
+	     (attr->ia_uid != server->m.uid)))
+		goto out;
+
+	if (((attr->ia_valid & ATTR_GID) &&
+	     (attr->ia_gid != server->m.gid)))
+		goto out;
+
+	if (((attr->ia_valid & ATTR_MODE) &&
+	     (attr->ia_mode &
+	      ~(S_IFREG | S_IFDIR | S_IRWXU | S_IRWXG | S_IRWXO))))
+		goto out;
+
+	info_mask = 0;
+	memset(&info, 0, sizeof(info));
+
+#if 1 
+        if ((attr->ia_valid & ATTR_MODE) != 0)
+        {
+                if (S_ISDIR(inode->i_mode)) {
+                	umode_t newmode;
+
+                	info_mask |= DM_ATTRIBUTES;
+                	newmode = attr->ia_mode;
+                	newmode &= NCP_SERVER(inode)->m.dir_mode;
+
+                	if (newmode & 0222)
+                		info.attributes &= ~(aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT);
+                	else
+				info.attributes |=  (aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT);
+                } else if (!S_ISREG(inode->i_mode))
+                {
+                        return -EPERM;
+                }
+                else
+                {
+			umode_t newmode;
+#ifdef CONFIG_NCPFS_EXTRAS			
+			int extras;
+			
+			extras = server->m.flags & NCP_MOUNT_EXTRAS;
+#endif
+                        info_mask |= DM_ATTRIBUTES;
+                        newmode=attr->ia_mode;
+#ifdef CONFIG_NCPFS_EXTRAS
+			if (!extras)
+#endif
+	                        newmode &= server->m.file_mode;
+
+                        if (newmode & 0222) /* any write bit set */
+                        {
+                                info.attributes &= ~(aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT);
+                        }
+                        else
+                        {
+                                info.attributes |=  (aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT);
+                        }
+#ifdef CONFIG_NCPFS_EXTRAS
+			if (extras) {
+				if (newmode & 0111) /* any execute bit set */
+					info.attributes |= aSHARED | aSYSTEM;
+				/* read for group/world and not in default file_mode */
+				else if (newmode & ~server->m.file_mode & 0444)
+					info.attributes |= aSHARED;
+			}
+#endif
+                }
+        }
+#endif
+
+	if ((attr->ia_valid & ATTR_CTIME) != 0) {
+		info_mask |= (DM_CREATE_TIME | DM_CREATE_DATE);
+		ncp_date_unix2dos(attr->ia_ctime,
+			     &(info.creationTime), &(info.creationDate));
+		info.creationTime = le16_to_cpu(info.creationTime);
+		info.creationDate = le16_to_cpu(info.creationDate);
+	}
+	if ((attr->ia_valid & ATTR_MTIME) != 0) {
+		info_mask |= (DM_MODIFY_TIME | DM_MODIFY_DATE);
+		ncp_date_unix2dos(attr->ia_mtime,
+				  &(info.modifyTime), &(info.modifyDate));
+		info.modifyTime = le16_to_cpu(info.modifyTime);
+		info.modifyDate = le16_to_cpu(info.modifyDate);
+	}
+	if ((attr->ia_valid & ATTR_ATIME) != 0) {
+		__u16 dummy;
+		info_mask |= (DM_LAST_ACCESS_DATE);
+		ncp_date_unix2dos(attr->ia_atime,
+				  &(dummy), &(info.lastAccessDate));
+		info.lastAccessDate = le16_to_cpu(info.lastAccessDate);
+	}
+	if (info_mask != 0) {
+		result = ncp_modify_file_or_subdir_dos_info(NCP_SERVER(inode),
+				      inode, info_mask, &info);
+		if (result != 0) {
+			result = -EACCES;
+
+			if (info_mask == (DM_CREATE_TIME | DM_CREATE_DATE)) {
+				/* NetWare seems not to allow this. I
+				   do not know why. So, just tell the
+				   user everything went fine. This is
+				   a terrible hack, but I do not know
+				   how to do this correctly. */
+				result = 0;
+			}
+		}
+#ifdef CONFIG_NCPFS_STRONG		
+		if ((!result) && (info_mask & DM_ATTRIBUTES))
+			NCP_FINFO(inode)->nwattr = info.attributes;
+#endif
+	}
+	if ((attr->ia_valid & ATTR_SIZE) != 0) {
+		int written;
+
+		DPRINTK("ncpfs: trying to change size to %ld\n",
+			attr->ia_size);
+
+		if ((result = ncp_make_open(inode, O_WRONLY)) < 0) {
+			return -EACCES;
+		}
+		ncp_write_kernel(NCP_SERVER(inode), NCP_FINFO(inode)->file_handle,
+			  attr->ia_size, 0, "", &written);
+
+		/* According to ndir, the changes only take effect after
+		   closing the file */
+		ncp_inode_close(inode);
+		result = ncp_make_closed(inode);
+		if (!result)
+			result = vmtruncate(inode, attr->ia_size);
+	}
+out:
+	return result;
+}
+
+#ifdef DEBUG_NCP_MALLOC
+int ncp_malloced;
+int ncp_current_malloced;
+#endif
+
+static DECLARE_FSTYPE(ncp_fs_type, "ncpfs", ncp_read_super, 0);
+
+static int __init init_ncp_fs(void)
+{
+	DPRINTK("ncpfs: init_module called\n");
+
+#ifdef DEBUG_NCP_MALLOC
+	ncp_malloced = 0;
+	ncp_current_malloced = 0;
+#endif
+	return register_filesystem(&ncp_fs_type);
+}
+
+static void __exit exit_ncp_fs(void)
+{
+	DPRINTK("ncpfs: cleanup_module called\n");
+	unregister_filesystem(&ncp_fs_type);
+#ifdef DEBUG_NCP_MALLOC
+	PRINTK("ncp_malloced: %d\n", ncp_malloced);
+	PRINTK("ncp_current_malloced: %d\n", ncp_current_malloced);
+#endif
+}
+
+EXPORT_NO_SYMBOLS;
+
+module_init(init_ncp_fs)
+module_exit(exit_ncp_fs)
+MODULE_LICENSE("GPL");
diff --git a/fs/ncpfs/ioctl.c b/fs/ncpfs/ioctl.c
new file mode 100644
index 00000000000000..2d5f8c07a6b556
--- /dev/null
+++ b/fs/ncpfs/ioctl.c
@@ -0,0 +1,644 @@
+/*
+ *  ioctl.c
+ *
+ *  Copyright (C) 1995, 1996 by Volker Lendecke
+ *  Modified 1997 Peter Waltenberg, Bill Hawes, David Woodhouse for 2.1 dcache
+ *  Modified 1998, 1999 Wolfram Pienkoss for NLS
+ *
+ */
+
+#include <linux/config.h>
+
+#include <asm/uaccess.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/ioctl.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/highuid.h>
+#include <linux/vmalloc.h>
+
+#include <linux/ncp_fs.h>
+
+#include "ncplib_kernel.h"
+
+/* maximum limit for ncp_objectname_ioctl */
+#define NCP_OBJECT_NAME_MAX_LEN	4096
+/* maximum limit for ncp_privatedata_ioctl */
+#define NCP_PRIVATE_DATA_MAX_LEN 8192
+/* maximum negotiable packet size */
+#define NCP_PACKET_SIZE_INTERNAL 65536
+
+int ncp_ioctl(struct inode *inode, struct file *filp,
+	      unsigned int cmd, unsigned long arg)
+{
+	struct ncp_server *server = NCP_SERVER(inode);
+	int result;
+	struct ncp_ioctl_request request;
+	char* bouncebuffer;
+
+	switch (cmd) {
+	case NCP_IOC_NCPREQUEST:
+
+		if ((permission(inode, MAY_WRITE) != 0)
+		    && (current->uid != server->m.mounted_uid)) {
+			return -EACCES;
+		}
+		if (copy_from_user(&request, (struct ncp_ioctl_request *) arg,
+			       sizeof(request)))
+			return -EFAULT;
+
+		if ((request.function > 255)
+		    || (request.size >
+		  NCP_PACKET_SIZE - sizeof(struct ncp_request_header))) {
+			return -EINVAL;
+		}
+		bouncebuffer = vmalloc(NCP_PACKET_SIZE_INTERNAL);
+		if (!bouncebuffer)
+			return -ENOMEM;
+		if (copy_from_user(bouncebuffer, request.data, request.size)) {
+			vfree(bouncebuffer);
+			return -EFAULT;
+		}
+		ncp_lock_server(server);
+
+		/* FIXME: We hack around in the server's structures
+		   here to be able to use ncp_request */
+
+		server->has_subfunction = 0;
+		server->current_size = request.size;
+		memcpy(server->packet, bouncebuffer, request.size);
+
+		result = ncp_request2(server, request.function, 
+			bouncebuffer, NCP_PACKET_SIZE_INTERNAL);
+		if (result < 0)
+			result = -EIO;
+		else
+			result = server->reply_size;
+		ncp_unlock_server(server);
+		DPRINTK("ncp_ioctl: copy %d bytes\n",
+			result);
+		if (result >= 0)
+			if (copy_to_user(request.data, bouncebuffer, result))
+				result = -EFAULT;
+		vfree(bouncebuffer);
+		return result;
+
+	case NCP_IOC_CONN_LOGGED_IN:
+
+		if (!capable(CAP_SYS_ADMIN))
+			return -EACCES;
+		if (!(server->m.int_flags & NCP_IMOUNT_LOGGEDIN_POSSIBLE))
+			return -EINVAL;
+		if (server->root_setuped)
+			return -EBUSY;
+		server->root_setuped = 1;
+		return ncp_conn_logged_in(inode->i_sb);
+
+	case NCP_IOC_GET_FS_INFO:
+		{
+			struct ncp_fs_info info;
+
+			if ((permission(inode, MAY_WRITE) != 0)
+			    && (current->uid != server->m.mounted_uid)) {
+				return -EACCES;
+			}
+			if (copy_from_user(&info, (struct ncp_fs_info *) arg, 
+				sizeof(info)))
+				return -EFAULT;
+
+			if (info.version != NCP_GET_FS_INFO_VERSION) {
+				DPRINTK("info.version invalid: %d\n", info.version);
+				return -EINVAL;
+			}
+			/* TODO: info.addr = server->m.serv_addr; */
+			info.mounted_uid	= NEW_TO_OLD_UID(server->m.mounted_uid);
+			info.connection		= server->connection;
+			info.buffer_size	= server->buffer_size;
+			info.volume_number	= NCP_FINFO(inode)->volNumber;
+			info.directory_id	= NCP_FINFO(inode)->DosDirNum;
+
+			if (copy_to_user((struct ncp_fs_info *) arg, &info, 
+				sizeof(info))) return -EFAULT;
+			return 0;
+		}
+
+	case NCP_IOC_GET_FS_INFO_V2:
+		{
+			struct ncp_fs_info_v2 info2;
+
+			if ((permission(inode, MAY_WRITE) != 0)
+			    && (current->uid != server->m.mounted_uid)) {
+				return -EACCES;
+			}
+			if (copy_from_user(&info2, (struct ncp_fs_info_v2 *) arg, 
+				sizeof(info2)))
+				return -EFAULT;
+
+			if (info2.version != NCP_GET_FS_INFO_VERSION_V2) {
+				DPRINTK("info.version invalid: %d\n", info2.version);
+				return -EINVAL;
+			}
+			info2.mounted_uid   = server->m.mounted_uid;
+			info2.connection    = server->connection;
+			info2.buffer_size   = server->buffer_size;
+			info2.volume_number = NCP_FINFO(inode)->volNumber;
+			info2.directory_id  = NCP_FINFO(inode)->DosDirNum;
+			info2.dummy1 = info2.dummy2 = info2.dummy3 = 0;
+
+			if (copy_to_user((struct ncp_fs_info_v2 *) arg, &info2, 
+				sizeof(info2))) return -EFAULT;
+			return 0;
+		}
+
+	case NCP_IOC_GETMOUNTUID2:
+		{
+			unsigned long tmp = server->m.mounted_uid;
+
+			if (   (permission(inode, MAY_READ) != 0)
+			    && (current->uid != server->m.mounted_uid))
+			{
+				return -EACCES;
+			}
+			if (put_user(tmp, (unsigned long*) arg)) 
+				return -EFAULT;
+			return 0;
+		}
+
+	case NCP_IOC_GETROOT:
+		{
+			struct ncp_setroot_ioctl sr;
+
+			if (   (permission(inode, MAY_READ) != 0)
+			    && (current->uid != server->m.mounted_uid))
+			{
+				return -EACCES;
+			}
+			if (server->m.mounted_vol[0]) {
+				struct dentry* dentry = inode->i_sb->s_root;
+
+				if (dentry) {
+					struct inode* inode = dentry->d_inode;
+				
+					if (inode) {
+						sr.volNumber = NCP_FINFO(inode)->volNumber;
+						sr.dirEntNum = NCP_FINFO(inode)->dirEntNum;
+						sr.namespace = server->name_space[sr.volNumber];
+					} else
+						DPRINTK("ncpfs: s_root->d_inode==NULL\n");
+				} else
+					DPRINTK("ncpfs: s_root==NULL\n");
+			} else {
+				sr.volNumber = -1;
+				sr.namespace = 0;
+				sr.dirEntNum = 0;
+			}
+			if (copy_to_user((struct ncp_setroot_ioctl*)arg, 
+				    	  &sr, 
+					  sizeof(sr))) return -EFAULT;
+			return 0;
+		}
+	case NCP_IOC_SETROOT:
+		{
+			struct ncp_setroot_ioctl sr;
+			struct nw_info_struct i;
+			struct dentry* dentry;
+
+			if (!capable(CAP_SYS_ADMIN))
+			{
+				return -EACCES;
+			}
+			if (server->root_setuped) return -EBUSY;
+			if (copy_from_user(&sr,
+					   (struct ncp_setroot_ioctl*)arg, 
+					   sizeof(sr))) return -EFAULT;
+			if (sr.volNumber < 0) {
+				server->m.mounted_vol[0] = 0;
+				i.volNumber = NCP_NUMBER_OF_VOLUMES + 1;
+				i.dirEntNum = 0;
+				i.DosDirNum = 0;
+			} else if (sr.volNumber >= NCP_NUMBER_OF_VOLUMES) {
+				return -EINVAL;
+			} else
+				if (ncp_mount_subdir(server, &i, sr.volNumber,
+						sr.namespace, sr.dirEntNum))
+					return -ENOENT;
+
+			dentry = inode->i_sb->s_root;
+			server->root_setuped = 1;
+			if (dentry) {
+				struct inode* inode = dentry->d_inode;
+				
+				if (inode) {
+					NCP_FINFO(inode)->volNumber = i.volNumber;
+					NCP_FINFO(inode)->dirEntNum = i.dirEntNum;
+					NCP_FINFO(inode)->DosDirNum = i.DosDirNum;
+				} else
+					DPRINTK("ncpfs: s_root->d_inode==NULL\n");
+			} else
+				DPRINTK("ncpfs: s_root==NULL\n");
+
+			return 0;
+		}
+
+#ifdef CONFIG_NCPFS_PACKET_SIGNING	
+	case NCP_IOC_SIGN_INIT:
+		if ((permission(inode, MAY_WRITE) != 0)
+		    && (current->uid != server->m.mounted_uid))
+		{
+			return -EACCES;
+		}
+		if (arg) {
+			if (server->sign_wanted)
+			{
+				struct ncp_sign_init sign;
+
+				if (copy_from_user(&sign, (struct ncp_sign_init *) arg,
+				      sizeof(sign))) return -EFAULT;
+				memcpy(server->sign_root,sign.sign_root,8);
+				memcpy(server->sign_last,sign.sign_last,16);
+				server->sign_active = 1;
+			}
+			/* ignore when signatures not wanted */
+		} else {
+			server->sign_active = 0;
+		}
+		return 0;		
+		
+        case NCP_IOC_SIGN_WANTED:
+		if (   (permission(inode, MAY_READ) != 0)
+		    && (current->uid != server->m.mounted_uid))
+		{
+			return -EACCES;
+		}
+		
+                if (put_user(server->sign_wanted, (int*) arg))
+			return -EFAULT;
+                return 0;
+	case NCP_IOC_SET_SIGN_WANTED:
+		{
+			int newstate;
+
+			if (   (permission(inode, MAY_WRITE) != 0)
+			    && (current->uid != server->m.mounted_uid))
+			{
+				return -EACCES;
+			}
+			/* get only low 8 bits... */
+			if (get_user(newstate, (unsigned char *) arg))
+				return -EFAULT;
+			if (server->sign_active) {
+				/* cannot turn signatures OFF when active */
+				if (!newstate) return -EINVAL;
+			} else {
+				server->sign_wanted = newstate != 0;
+			}
+			return 0;
+		}
+
+#endif /* CONFIG_NCPFS_PACKET_SIGNING */
+
+#ifdef CONFIG_NCPFS_IOCTL_LOCKING
+	case NCP_IOC_LOCKUNLOCK:
+		if (   (permission(inode, MAY_WRITE) != 0)
+		    && (current->uid != server->m.mounted_uid))
+		{
+			return -EACCES;
+		}
+		{
+			struct ncp_lock_ioctl	 rqdata;
+			int result;
+
+			if (copy_from_user(&rqdata, (struct ncp_lock_ioctl*)arg,
+				sizeof(rqdata))) return -EFAULT;
+			if (rqdata.origin != 0)
+				return -EINVAL;
+			/* check for cmd */
+			switch (rqdata.cmd) {
+				case NCP_LOCK_EX:
+				case NCP_LOCK_SH:
+						if (rqdata.timeout == 0)
+							rqdata.timeout = NCP_LOCK_DEFAULT_TIMEOUT;
+						else if (rqdata.timeout > NCP_LOCK_MAX_TIMEOUT)
+							rqdata.timeout = NCP_LOCK_MAX_TIMEOUT;
+						break;
+				case NCP_LOCK_LOG:
+						rqdata.timeout = NCP_LOCK_DEFAULT_TIMEOUT;	/* has no effect */
+				case NCP_LOCK_CLEAR:
+						break;
+				default:
+						return -EINVAL;
+			}
+			/* locking needs both read and write access */
+			if ((result = ncp_make_open(inode, O_RDWR)) != 0)
+			{
+				return result;
+			}
+			result = -EIO;
+			if (!ncp_conn_valid(server))
+				goto outrel;
+			result = -EISDIR;
+			if (!S_ISREG(inode->i_mode))
+				goto outrel;
+			if (rqdata.cmd == NCP_LOCK_CLEAR)
+			{
+				result = ncp_ClearPhysicalRecord(NCP_SERVER(inode),
+							NCP_FINFO(inode)->file_handle, 
+							rqdata.offset,
+							rqdata.length);
+				if (result > 0) result = 0;	/* no such lock */
+			}
+			else
+			{
+				int lockcmd;
+
+				switch (rqdata.cmd)
+				{
+					case NCP_LOCK_EX:  lockcmd=1; break;
+					case NCP_LOCK_SH:  lockcmd=3; break;
+					default:	   lockcmd=0; break;
+				}
+				result = ncp_LogPhysicalRecord(NCP_SERVER(inode),
+							NCP_FINFO(inode)->file_handle,
+							lockcmd,
+							rqdata.offset,
+							rqdata.length,
+							rqdata.timeout);
+				if (result > 0) result = -EAGAIN;
+			}
+outrel:			
+			ncp_inode_close(inode);
+			return result;
+		}
+#endif	/* CONFIG_NCPFS_IOCTL_LOCKING */
+
+	case NCP_IOC_GETOBJECTNAME:
+		if (current->uid != server->m.mounted_uid) {
+			return -EACCES;
+		}
+		{
+			struct ncp_objectname_ioctl user;
+			size_t outl;
+
+			if (copy_from_user(&user, 
+					   (struct ncp_objectname_ioctl*)arg,
+					   sizeof(user))) return -EFAULT;
+			user.auth_type = server->auth.auth_type;
+			outl = user.object_name_len;
+			user.object_name_len = server->auth.object_name_len;
+			if (outl > user.object_name_len)
+				outl = user.object_name_len;
+			if (outl) {
+				if (copy_to_user(user.object_name,
+						 server->auth.object_name,
+						 outl)) return -EFAULT;
+			}
+			if (copy_to_user((struct ncp_objectname_ioctl*)arg,
+					 &user,
+					 sizeof(user))) return -EFAULT;
+			return 0;
+		}
+	case NCP_IOC_SETOBJECTNAME:
+		if (current->uid != server->m.mounted_uid) {
+			return -EACCES;
+		}
+		{
+			struct ncp_objectname_ioctl user;
+			void* newname;
+			void* oldname;
+			size_t oldnamelen;
+			void* oldprivate;
+			size_t oldprivatelen;
+
+			if (copy_from_user(&user, 
+					   (struct ncp_objectname_ioctl*)arg,
+					   sizeof(user))) return -EFAULT;
+			if (user.object_name_len > NCP_OBJECT_NAME_MAX_LEN)
+				return -ENOMEM;
+			if (user.object_name_len) {
+				newname = ncp_kmalloc(user.object_name_len, GFP_USER);
+				if (!newname) return -ENOMEM;
+				if (copy_from_user(newname, user.object_name, user.object_name_len)) {
+					ncp_kfree_s(newname, user.object_name_len);
+					return -EFAULT;
+				}
+			} else {
+				newname = NULL;
+			}
+			/* enter critical section */
+			/* maybe that kfree can sleep so do that this way */
+			/* it is at least more SMP friendly (in future...) */
+			oldname = server->auth.object_name;
+			oldnamelen = server->auth.object_name_len;
+			oldprivate = server->priv.data;
+			oldprivatelen = server->priv.len;
+			server->auth.auth_type = user.auth_type;
+			server->auth.object_name_len = user.object_name_len;
+			server->auth.object_name = newname;
+			server->priv.len = 0;
+			server->priv.data = NULL;
+			/* leave critical section */
+			if (oldprivate) ncp_kfree_s(oldprivate, oldprivatelen);
+			if (oldname) ncp_kfree_s(oldname, oldnamelen);
+			return 0;
+		}
+	case NCP_IOC_GETPRIVATEDATA:
+		if (current->uid != server->m.mounted_uid) {
+			return -EACCES;
+		}
+		{
+			struct ncp_privatedata_ioctl user;
+			size_t outl;
+
+			if (copy_from_user(&user, 
+					   (struct ncp_privatedata_ioctl*)arg,
+					   sizeof(user))) return -EFAULT;
+			outl = user.len;
+			user.len = server->priv.len;
+			if (outl > user.len) outl = user.len;
+			if (outl) {
+				if (copy_to_user(user.data,
+						 server->priv.data,
+						 outl)) return -EFAULT;
+			}
+			if (copy_to_user((struct ncp_privatedata_ioctl*)arg,
+					 &user,
+					 sizeof(user))) return -EFAULT;
+			return 0;
+		}
+	case NCP_IOC_SETPRIVATEDATA:
+		if (current->uid != server->m.mounted_uid) {
+			return -EACCES;
+		}
+		{
+			struct ncp_privatedata_ioctl user;
+			void* new;
+			void* old;
+			size_t oldlen;
+
+			if (copy_from_user(&user, 
+					   (struct ncp_privatedata_ioctl*)arg,
+					   sizeof(user))) return -EFAULT;
+			if (user.len > NCP_PRIVATE_DATA_MAX_LEN)
+				return -ENOMEM;
+			if (user.len) {
+				new = ncp_kmalloc(user.len, GFP_USER);
+				if (!new) return -ENOMEM;
+				if (copy_from_user(new, user.data, user.len)) {
+					ncp_kfree_s(new, user.len);
+					return -EFAULT;
+				}
+			} else {
+				new = NULL;
+			}
+			/* enter critical section */
+			old = server->priv.data;
+			oldlen = server->priv.len;
+			server->priv.len = user.len;
+			server->priv.data = new;
+			/* leave critical section */
+			if (old) ncp_kfree_s(old, oldlen);
+			return 0;
+		}
+
+#ifdef CONFIG_NCPFS_NLS
+/* Here we are select the iocharset and the codepage for NLS.
+ * Thanks Petr Vandrovec for idea and many hints.
+ */
+	case NCP_IOC_SETCHARSETS:
+		if (!capable(CAP_SYS_ADMIN))
+			return -EACCES;
+		if (server->root_setuped)
+			return -EBUSY;
+
+		{
+			struct ncp_nls_ioctl user;
+			struct nls_table *codepage;
+			struct nls_table *iocharset;
+			struct nls_table *oldset_io;
+			struct nls_table *oldset_cp;
+			
+			if (copy_from_user(&user, (struct ncp_nls_ioctl*)arg,
+					sizeof(user)))
+				return -EFAULT;
+
+			codepage = NULL;
+			user.codepage[NCP_IOCSNAME_LEN] = 0;
+			if (!user.codepage[0] ||
+					!strcmp(user.codepage, "default"))
+				codepage = load_nls_default();
+			else {
+				codepage = load_nls(user.codepage);
+				if (!codepage) {
+					return -EBADRQC;
+				}
+			}
+
+			iocharset = NULL;
+			user.iocharset[NCP_IOCSNAME_LEN] = 0;
+			if (!user.iocharset[0] ||
+					!strcmp(user.iocharset, "default")) {
+				iocharset = load_nls_default();
+				NCP_CLR_FLAG(server, NCP_FLAG_UTF8);
+			} else {
+				if (!strcmp(user.iocharset, "utf8")) {
+					iocharset = load_nls_default();
+					NCP_SET_FLAG(server, NCP_FLAG_UTF8);
+				} else {
+					iocharset = load_nls(user.iocharset);
+					if (!iocharset) {
+						unload_nls(codepage);
+						return -EBADRQC;
+					}
+					NCP_CLR_FLAG(server, NCP_FLAG_UTF8);
+				}
+			}
+
+			oldset_cp = server->nls_vol;
+			server->nls_vol = codepage;
+			oldset_io = server->nls_io;
+			server->nls_io = iocharset;
+
+			if (oldset_cp)
+				unload_nls(oldset_cp);
+			if (oldset_io)
+				unload_nls(oldset_io);
+
+			return 0;
+		}
+		
+	case NCP_IOC_GETCHARSETS: /* not tested */
+		{
+			struct ncp_nls_ioctl user;
+			int len;
+
+			memset(&user, 0, sizeof(user));
+			if (server->nls_vol && server->nls_vol->charset) {
+				len = strlen(server->nls_vol->charset);
+				if (len > NCP_IOCSNAME_LEN)
+					len = NCP_IOCSNAME_LEN;
+				strncpy(user.codepage,
+						server->nls_vol->charset, len);
+				user.codepage[len] = 0;
+			}
+
+			if (NCP_IS_FLAG(server, NCP_FLAG_UTF8))
+				strcpy(user.iocharset, "utf8");
+			else
+				if (server->nls_io && server->nls_io->charset) {
+					len = strlen(server->nls_io->charset);
+					if (len > NCP_IOCSNAME_LEN)
+						len = NCP_IOCSNAME_LEN;
+					strncpy(user.iocharset,
+						server->nls_io->charset, len);
+					user.iocharset[len] = 0;
+				}
+
+			if (copy_to_user((struct ncp_nls_ioctl*)arg, &user,
+					sizeof(user)))
+				return -EFAULT;
+
+			return 0;
+		}
+#endif /* CONFIG_NCPFS_NLS */
+	case NCP_IOC_SETDENTRYTTL:
+		if ((permission(inode, MAY_WRITE) != 0) &&
+				 (current->uid != server->m.mounted_uid))
+			return -EACCES;
+		{
+			u_int32_t user;
+
+			if (copy_from_user(&user, (u_int32_t*)arg, sizeof(user)))
+				return -EFAULT;
+			/* 20 secs at most... */
+			if (user > 20000)
+				return -EINVAL;
+			user = (user * HZ) / 1000;
+			server->dentry_ttl = user;
+			return 0;
+		}
+		
+	case NCP_IOC_GETDENTRYTTL:
+		{
+			u_int32_t user = (server->dentry_ttl * 1000) / HZ;
+			if (copy_to_user((u_int32_t*)arg, &user, sizeof(user)))
+				return -EFAULT;
+			return 0;
+		}
+
+	}
+/* #ifdef CONFIG_UID16 */
+	/* NCP_IOC_GETMOUNTUID may be same as NCP_IOC_GETMOUNTUID2,
+           so we have this out of switch */
+	if (cmd == NCP_IOC_GETMOUNTUID) {
+		if ((permission(inode, MAY_READ) != 0)
+		    && (current->uid != server->m.mounted_uid)) {
+			return -EACCES;
+		}
+		if (put_user(NEW_TO_OLD_UID(server->m.mounted_uid), (__kernel_uid_t *) arg))
+			return -EFAULT;
+		return 0;
+	}
+/* #endif */
+	return -EINVAL;
+}
diff --git a/fs/ncpfs/mmap.c b/fs/ncpfs/mmap.c
new file mode 100644
index 00000000000000..7d9bc345d4f0a5
--- /dev/null
+++ b/fs/ncpfs/mmap.c
@@ -0,0 +1,123 @@
+/*
+ *  mmap.c
+ *
+ *  Copyright (C) 1995, 1996 by Volker Lendecke
+ *  Modified 1997 Peter Waltenberg, Bill Hawes, David Woodhouse for 2.1 dcache
+ *
+ */
+
+#include <linux/stat.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/shm.h>
+#include <linux/errno.h>
+#include <linux/mman.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/fcntl.h>
+#include <linux/ncp_fs.h>
+
+#include "ncplib_kernel.h"
+#include <asm/uaccess.h>
+#include <asm/system.h>
+
+/*
+ * Fill in the supplied page for mmap
+ */
+static struct page* ncp_file_mmap_nopage(struct vm_area_struct *area,
+				     unsigned long address, int write_access)
+{
+	struct file *file = area->vm_file;
+	struct dentry *dentry = file->f_dentry;
+	struct inode *inode = dentry->d_inode;
+	struct page* page;
+	char *pg_addr;
+	unsigned int already_read;
+	unsigned int count;
+	int bufsize;
+	int pos;
+
+	page = alloc_page(GFP_HIGHUSER); /* ncpfs has nothing against high pages
+	           as long as recvmsg and memset works on it */
+	if (!page)
+		return page;
+	pg_addr = kmap(page);
+	address &= PAGE_MASK;
+	pos = address - area->vm_start + (area->vm_pgoff << PAGE_SHIFT);
+
+	count = PAGE_SIZE;
+	if (address + PAGE_SIZE > area->vm_end) {
+		count = area->vm_end - address;
+	}
+	/* what we can read in one go */
+	bufsize = NCP_SERVER(inode)->buffer_size;
+
+	already_read = 0;
+	if (ncp_make_open(inode, O_RDONLY) >= 0) {
+		while (already_read < count) {
+			int read_this_time;
+			int to_read;
+
+			to_read = bufsize - (pos % bufsize);
+
+			to_read = min_t(unsigned int, to_read, count - already_read);
+
+			if (ncp_read_kernel(NCP_SERVER(inode),
+				     NCP_FINFO(inode)->file_handle,
+				     pos, to_read,
+				     pg_addr + already_read,
+				     &read_this_time) != 0) {
+				read_this_time = 0;
+			}
+			pos += read_this_time;
+			already_read += read_this_time;
+
+			if (read_this_time < to_read) {
+				break;
+			}
+		}
+		ncp_inode_close(inode);
+
+	}
+
+	if (already_read < PAGE_SIZE)
+		memset(pg_addr + already_read, 0, PAGE_SIZE - already_read);
+	flush_dcache_page(page);
+	kunmap(page);
+	return page;
+}
+
+static struct vm_operations_struct ncp_file_mmap =
+{
+	nopage:	ncp_file_mmap_nopage,
+};
+
+
+/* This is used for a general mmap of a ncp file */
+int ncp_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	struct inode *inode = file->f_dentry->d_inode;
+	
+	DPRINTK("ncp_mmap: called\n");
+
+	if (!ncp_conn_valid(NCP_SERVER(inode))) {
+		return -EIO;
+	}
+	/* only PAGE_COW or read-only supported now */
+	if (vma->vm_flags & VM_SHARED)
+		return -EINVAL;
+	if (!inode->i_sb || !S_ISREG(inode->i_mode))
+		return -EACCES;
+	/* we do not support files bigger than 4GB... We eventually 
+	   supports just 4GB... */
+	if (((vma->vm_end - vma->vm_start) >> PAGE_SHIFT) + vma->vm_pgoff 
+	   > (1U << (32 - PAGE_SHIFT)))
+		return -EFBIG;
+	if (!IS_RDONLY(inode)) {
+		inode->i_atime = CURRENT_TIME;
+	}
+
+	vma->vm_ops = &ncp_file_mmap;
+	return 0;
+}
diff --git a/fs/ncpfs/ncplib_kernel.c b/fs/ncpfs/ncplib_kernel.c
new file mode 100644
index 00000000000000..08110ebaf8cc85
--- /dev/null
+++ b/fs/ncpfs/ncplib_kernel.c
@@ -0,0 +1,1129 @@
+/*
+ *  ncplib_kernel.c
+ *
+ *  Copyright (C) 1995, 1996 by Volker Lendecke
+ *  Modified for big endian by J.F. Chadima and David S. Miller
+ *  Modified 1997 Peter Waltenberg, Bill Hawes, David Woodhouse for 2.1 dcache
+ *  Modified 1999 Wolfram Pienkoss for NLS
+ *
+ */
+
+
+#include <linux/config.h>
+
+#include "ncplib_kernel.h"
+
+static inline void assert_server_locked(struct ncp_server *server)
+{
+	if (server->lock == 0) {
+		DPRINTK("ncpfs: server not locked!\n");
+	}
+}
+
+static void ncp_add_byte(struct ncp_server *server, __u8 x)
+{
+	assert_server_locked(server);
+	*(__u8 *) (&(server->packet[server->current_size])) = x;
+	server->current_size += 1;
+	return;
+}
+
+static void ncp_add_word(struct ncp_server *server, __u16 x)
+{
+	assert_server_locked(server);
+	put_unaligned(x, (__u16 *) (&(server->packet[server->current_size])));
+	server->current_size += 2;
+	return;
+}
+
+static void ncp_add_dword(struct ncp_server *server, __u32 x)
+{
+	assert_server_locked(server);
+	put_unaligned(x, (__u32 *) (&(server->packet[server->current_size])));
+	server->current_size += 4;
+	return;
+}
+
+static void ncp_add_mem(struct ncp_server *server, const void *source, int size)
+{
+	assert_server_locked(server);
+	memcpy(&(server->packet[server->current_size]), source, size);
+	server->current_size += size;
+	return;
+}
+
+static void ncp_add_pstring(struct ncp_server *server, const char *s)
+{
+	int len = strlen(s);
+	assert_server_locked(server);
+	if (len > 255) {
+		DPRINTK("ncpfs: string too long: %s\n", s);
+		len = 255;
+	}
+	ncp_add_byte(server, len);
+	ncp_add_mem(server, s, len);
+	return;
+}
+
+static inline void ncp_init_request(struct ncp_server *server)
+{
+	ncp_lock_server(server);
+
+	server->current_size = sizeof(struct ncp_request_header);
+	server->has_subfunction = 0;
+}
+
+static inline void ncp_init_request_s(struct ncp_server *server, int subfunction)
+{
+	ncp_lock_server(server);
+	
+	server->current_size = sizeof(struct ncp_request_header) + 2;
+	ncp_add_byte(server, subfunction);
+
+	server->has_subfunction = 1;
+}
+
+static inline char *
+ ncp_reply_data(struct ncp_server *server, int offset)
+{
+	return &(server->packet[sizeof(struct ncp_reply_header) + offset]);
+}
+
+static __u8
+ ncp_reply_byte(struct ncp_server *server, int offset)
+{
+	return get_unaligned((__u8 *) ncp_reply_data(server, offset));
+}
+
+static __u16
+ ncp_reply_word(struct ncp_server *server, int offset)
+{
+	return get_unaligned((__u16 *) ncp_reply_data(server, offset));
+}
+
+static __u32
+ ncp_reply_dword(struct ncp_server *server, int offset)
+{
+	return get_unaligned((__u32 *) ncp_reply_data(server, offset));
+}
+
+int
+ncp_negotiate_buffersize(struct ncp_server *server, int size, int *target)
+{
+	int result;
+
+	ncp_init_request(server);
+	ncp_add_word(server, htons(size));
+
+	if ((result = ncp_request(server, 33)) != 0) {
+		ncp_unlock_server(server);
+		return result;
+	}
+	*target = min_t(unsigned int, ntohs(ncp_reply_word(server, 0)), size);
+
+	ncp_unlock_server(server);
+	return 0;
+}
+
+
+/* options: 
+ *	bit 0	ipx checksum
+ *	bit 1	packet signing
+ */
+int
+ncp_negotiate_size_and_options(struct ncp_server *server, 
+	int size, int options, int *ret_size, int *ret_options) {
+	int result;
+
+	/* there is minimum */
+	if (size < NCP_BLOCK_SIZE) size = NCP_BLOCK_SIZE;
+
+	ncp_init_request(server);
+	ncp_add_word(server, htons(size));
+	ncp_add_byte(server, options);
+	
+	if ((result = ncp_request(server, 0x61)) != 0)
+	{
+		ncp_unlock_server(server);
+		return result;
+	}
+
+	/* NCP over UDP returns 0 (!!!) */
+	result = ntohs(ncp_reply_word(server, 0));
+	if (result >= NCP_BLOCK_SIZE)
+		size = min(result, size);
+	*ret_size = size;
+	*ret_options = ncp_reply_byte(server, 4);
+
+	ncp_unlock_server(server);
+	return 0;
+}
+
+int
+ncp_get_volume_info_with_number(struct ncp_server *server, int n,
+				    struct ncp_volume_info *target)
+{
+	int result;
+	int len;
+
+	ncp_init_request_s(server, 44);
+	ncp_add_byte(server, n);
+
+	if ((result = ncp_request(server, 22)) != 0) {
+		goto out;
+	}
+	target->total_blocks = ncp_reply_dword(server, 0);
+	target->free_blocks = ncp_reply_dword(server, 4);
+	target->purgeable_blocks = ncp_reply_dword(server, 8);
+	target->not_yet_purgeable_blocks = ncp_reply_dword(server, 12);
+	target->total_dir_entries = ncp_reply_dword(server, 16);
+	target->available_dir_entries = ncp_reply_dword(server, 20);
+	target->sectors_per_block = ncp_reply_byte(server, 28);
+
+	memset(&(target->volume_name), 0, sizeof(target->volume_name));
+
+	result = -EIO;
+	len = ncp_reply_byte(server, 29);
+	if (len > NCP_VOLNAME_LEN) {
+		DPRINTK("ncpfs: volume name too long: %d\n", len);
+		goto out;
+	}
+	memcpy(&(target->volume_name), ncp_reply_data(server, 30), len);
+	result = 0;
+out:
+	ncp_unlock_server(server);
+	return result;
+}
+
+int
+ncp_close_file(struct ncp_server *server, const char *file_id)
+{
+	int result;
+
+	ncp_init_request(server);
+	ncp_add_byte(server, 0);
+	ncp_add_mem(server, file_id, 6);
+
+	result = ncp_request(server, 66);
+	ncp_unlock_server(server);
+	return result;
+}
+
+int
+ncp_make_closed(struct inode *inode)
+{
+	int err;
+
+	err = 0;
+	down(&NCP_FINFO(inode)->open_sem);	
+	if (atomic_read(&NCP_FINFO(inode)->opened) == 1) {
+		atomic_set(&NCP_FINFO(inode)->opened, 0);
+		err = ncp_close_file(NCP_SERVER(inode), NCP_FINFO(inode)->file_handle);
+
+		if (!err)
+			PPRINTK("ncp_make_closed: volnum=%d, dirent=%u, error=%d\n",
+				NCP_FINFO(inode)->volNumber,
+				NCP_FINFO(inode)->dirEntNum, err);
+	}
+	up(&NCP_FINFO(inode)->open_sem);
+	return err;
+}
+
+static void ncp_add_handle_path(struct ncp_server *server, __u8 vol_num,
+				__u32 dir_base, int have_dir_base, 
+				const char *path)
+{
+	ncp_add_byte(server, vol_num);
+	ncp_add_dword(server, dir_base);
+	if (have_dir_base != 0) {
+		ncp_add_byte(server, 1);	/* dir_base */
+	} else {
+		ncp_add_byte(server, 0xff);	/* no handle */
+	}
+	if (path != NULL) {
+		ncp_add_byte(server, 1);	/* 1 component */
+		ncp_add_pstring(server, path);
+	} else {
+		ncp_add_byte(server, 0);
+	}
+}
+
+static void ncp_extract_file_info(void *structure, struct nw_info_struct *target)
+{
+	__u8 *name_len;
+	const int info_struct_size = sizeof(struct nw_info_struct) - 257;
+
+	memcpy(target, structure, info_struct_size);
+	name_len = structure + info_struct_size;
+	target->nameLen = *name_len;
+	memcpy(target->entryName, name_len + 1, *name_len);
+	target->entryName[*name_len] = '\0';
+	target->volNumber = le32_to_cpu(target->volNumber);
+	return;
+}
+
+/*
+ * Returns information for a (one-component) name relative to
+ * the specified directory.
+ */
+int ncp_obtain_info(struct ncp_server *server, struct inode *dir, char *path,
+			struct nw_info_struct *target)
+{
+	__u8  volnum = NCP_FINFO(dir)->volNumber;
+	__u32 dirent = NCP_FINFO(dir)->dirEntNum;
+	int result;
+
+	if (target == NULL) {
+		printk(KERN_ERR "ncp_obtain_info: invalid call\n");
+		return -EINVAL;
+	}
+	ncp_init_request(server);
+	ncp_add_byte(server, 6);	/* subfunction */
+	ncp_add_byte(server, server->name_space[volnum]);
+	ncp_add_byte(server, server->name_space[volnum]); /* N.B. twice ?? */
+	ncp_add_word(server, htons(0x0680));	/* get all */
+	ncp_add_dword(server, RIM_ALL);
+	ncp_add_handle_path(server, volnum, dirent, 1, path);
+
+	if ((result = ncp_request(server, 87)) != 0)
+		goto out;
+	ncp_extract_file_info(ncp_reply_data(server, 0), target);
+
+out:
+	ncp_unlock_server(server);
+	return result;
+}
+
+#ifdef CONFIG_NCPFS_NFS_NS
+static int
+ncp_obtain_DOS_dir_base(struct ncp_server *server,
+		__u8 volnum, __u32 dirent,
+		char *path, /* At most 1 component */
+		__u32 *DOS_dir_base)
+{
+	int result;
+
+	ncp_init_request(server);
+	ncp_add_byte(server, 6); /* subfunction */
+	ncp_add_byte(server, server->name_space[volnum]);
+	ncp_add_byte(server, server->name_space[volnum]);
+	ncp_add_word(server, htons(0x0680)); /* get all */
+	ncp_add_dword(server, RIM_DIRECTORY);
+	ncp_add_handle_path(server, volnum, dirent, 1, path);
+
+	if ((result = ncp_request(server, 87)) == 0)
+	{
+	   	if (DOS_dir_base) *DOS_dir_base=ncp_reply_dword(server, 0x34);
+	}
+	ncp_unlock_server(server);
+	return result;
+}
+#endif /* CONFIG_NCPFS_NFS_NS */
+
+static inline int
+ncp_get_known_namespace(struct ncp_server *server, __u8 volume)
+{
+#if defined(CONFIG_NCPFS_OS2_NS) || defined(CONFIG_NCPFS_NFS_NS)
+	int result;
+	__u8 *namespace;
+	__u16 no_namespaces;
+
+	ncp_init_request(server);
+	ncp_add_byte(server, 24);	/* Subfunction: Get Name Spaces Loaded */
+	ncp_add_word(server, 0);
+	ncp_add_byte(server, volume);
+
+	if ((result = ncp_request(server, 87)) != 0) {
+		ncp_unlock_server(server);
+		return NW_NS_DOS; /* not result ?? */
+	}
+
+	result = NW_NS_DOS;
+	no_namespaces = le16_to_cpu(ncp_reply_word(server, 0));
+	namespace = ncp_reply_data(server, 2);
+
+	while (no_namespaces > 0) {
+		DPRINTK("get_namespaces: found %d on %d\n", *namespace, volume);
+
+#ifdef CONFIG_NCPFS_NFS_NS
+		if ((*namespace == NW_NS_NFS) && !(server->m.flags&NCP_MOUNT_NO_NFS)) 
+		{
+			result = NW_NS_NFS;
+			break;
+		}
+#endif	/* CONFIG_NCPFS_NFS_NS */
+#ifdef CONFIG_NCPFS_OS2_NS
+		if ((*namespace == NW_NS_OS2) && !(server->m.flags&NCP_MOUNT_NO_OS2))
+		{
+			result = NW_NS_OS2;
+		}
+#endif	/* CONFIG_NCPFS_OS2_NS */
+		namespace += 1;
+		no_namespaces -= 1;
+	}
+	ncp_unlock_server(server);
+	return result;
+#else	/* neither OS2 nor NFS - only DOS */
+	return NW_NS_DOS;
+#endif	/* defined(CONFIG_NCPFS_OS2_NS) || defined(CONFIG_NCPFS_NFS_NS) */
+}
+
+static int
+ncp_ObtainSpecificDirBase(struct ncp_server *server,
+		__u8 nsSrc, __u8 nsDst, __u8 vol_num, __u32 dir_base,
+		char *path, /* At most 1 component */
+		__u32 *dirEntNum, __u32 *DosDirNum)
+{
+	int result;
+
+	ncp_init_request(server);
+	ncp_add_byte(server, 6); /* subfunction */
+	ncp_add_byte(server, nsSrc);
+	ncp_add_byte(server, nsDst);
+	ncp_add_word(server, htons(0x0680)); /* get all */
+	ncp_add_dword(server, RIM_ALL);
+	ncp_add_handle_path(server, vol_num, dir_base, 1, path);
+
+	if ((result = ncp_request(server, 87)) != 0)
+	{
+		ncp_unlock_server(server);
+		return result;
+	}
+
+	if (dirEntNum)
+		*dirEntNum = ncp_reply_dword(server, 0x30);
+	if (DosDirNum)
+		*DosDirNum = ncp_reply_dword(server, 0x34);
+	ncp_unlock_server(server);
+	return 0;
+}
+
+int
+ncp_mount_subdir(struct ncp_server *server, struct nw_info_struct *i,
+			__u8 volNumber, __u8 srcNS, __u32 dirEntNum)
+{
+	int dstNS;
+	int result;
+	__u32 newDirEnt;
+	__u32 newDosEnt;
+	
+	dstNS = ncp_get_known_namespace(server, volNumber);
+	if ((result = ncp_ObtainSpecificDirBase(server, srcNS, dstNS, volNumber, 
+				      dirEntNum, NULL, &newDirEnt, &newDosEnt)) != 0)
+	{
+		return result;
+	}
+	server->name_space[volNumber] = dstNS;
+	i->volNumber = volNumber;
+	i->dirEntNum = newDirEnt;
+	i->DosDirNum = newDosEnt;
+	server->m.mounted_vol[1] = 0;
+	server->m.mounted_vol[0] = 'X';
+	return 0;
+}
+
+int 
+ncp_lookup_volume(struct ncp_server *server, char *volname,
+		      struct nw_info_struct *target)
+{
+	int result;
+	int volnum;
+
+	DPRINTK("ncp_lookup_volume: looking up vol %s\n", volname);
+
+	ncp_init_request(server);
+	ncp_add_byte(server, 22);	/* Subfunction: Generate dir handle */
+	ncp_add_byte(server, 0);	/* DOS namespace */
+	ncp_add_byte(server, 0);	/* reserved */
+	ncp_add_byte(server, 0);	/* reserved */
+	ncp_add_byte(server, 0);	/* reserved */
+
+	ncp_add_byte(server, 0);	/* faked volume number */
+	ncp_add_dword(server, 0);	/* faked dir_base */
+	ncp_add_byte(server, 0xff);	/* Don't have a dir_base */
+	ncp_add_byte(server, 1);	/* 1 path component */
+	ncp_add_pstring(server, volname);
+
+	if ((result = ncp_request(server, 87)) != 0) {
+		ncp_unlock_server(server);
+		return result;
+	}
+	memset(target, 0, sizeof(*target));
+	target->DosDirNum = target->dirEntNum = ncp_reply_dword(server, 4);
+	target->volNumber = volnum = ncp_reply_byte(server, 8);
+	ncp_unlock_server(server);
+
+	server->name_space[volnum] = ncp_get_known_namespace(server, volnum);
+
+	DPRINTK("lookup_vol: namespace[%d] = %d\n",
+		volnum, server->name_space[volnum]);
+
+	target->nameLen = strlen(volname);
+	memcpy(target->entryName, volname, target->nameLen+1);
+	target->attributes = aDIR;
+	/* set dates to Jan 1, 1986  00:00 */
+	target->creationTime = target->modifyTime = cpu_to_le16(0x0000);
+	target->creationDate = target->modifyDate = target->lastAccessDate = cpu_to_le16(0x0C21);
+	return 0;
+}
+
+int ncp_modify_file_or_subdir_dos_info_path(struct ncp_server *server,
+					    struct inode *dir,
+					    const char *path,
+					    __u32 info_mask,
+					    const struct nw_modify_dos_info *info)
+{
+	__u8  volnum = NCP_FINFO(dir)->volNumber;
+	__u32 dirent = NCP_FINFO(dir)->dirEntNum;
+	int result;
+
+	ncp_init_request(server);
+	ncp_add_byte(server, 7);	/* subfunction */
+	ncp_add_byte(server, server->name_space[volnum]);
+	ncp_add_byte(server, 0);	/* reserved */
+	ncp_add_word(server, htons(0x0680));	/* search attribs: all */
+
+	ncp_add_dword(server, info_mask);
+	ncp_add_mem(server, info, sizeof(*info));
+	ncp_add_handle_path(server, volnum, dirent, 1, path);
+
+	result = ncp_request(server, 87);
+	ncp_unlock_server(server);
+	return result;
+}
+
+int ncp_modify_file_or_subdir_dos_info(struct ncp_server *server,
+				       struct inode *dir,
+				       __u32 info_mask,
+				       const struct nw_modify_dos_info *info)
+{
+	return ncp_modify_file_or_subdir_dos_info_path(server, dir, NULL,
+		info_mask, info);
+}
+
+static int
+ncp_DeleteNSEntry(struct ncp_server *server,
+		  __u8 have_dir_base, __u8 volnum, __u32 dirent,
+		  char* name, __u8 ns, int attr)
+{
+	int result;
+
+	ncp_init_request(server);
+	ncp_add_byte(server, 8);	/* subfunction */
+	ncp_add_byte(server, ns);
+	ncp_add_byte(server, 0);	/* reserved */
+	ncp_add_word(server, attr);	/* search attribs: all */
+	ncp_add_handle_path(server, volnum, dirent, have_dir_base, name);
+
+	result = ncp_request(server, 87);
+	ncp_unlock_server(server);
+	return result;
+}
+
+int
+ncp_del_file_or_subdir2(struct ncp_server *server,
+			struct dentry *dentry)
+{
+	struct inode *inode = dentry->d_inode;
+	__u8  volnum;
+	__u32 dirent;
+
+	if (!inode) {
+#if CONFIG_NCPFS_DEBUGDENTRY
+		PRINTK("ncpfs: ncpdel2: dentry->d_inode == NULL\n");
+#endif
+		return 0xFF;	/* Any error */
+	}
+	volnum = NCP_FINFO(inode)->volNumber;
+	dirent = NCP_FINFO(inode)->DosDirNum;
+	return ncp_DeleteNSEntry(server, 1, volnum, dirent, NULL, NW_NS_DOS, htons(0x0680));
+}
+
+int
+ncp_del_file_or_subdir(struct ncp_server *server,
+		       struct inode *dir, char *name)
+{
+	__u8  volnum = NCP_FINFO(dir)->volNumber;
+	__u32 dirent = NCP_FINFO(dir)->dirEntNum;
+
+#ifdef CONFIG_NCPFS_NFS_NS
+	if (server->name_space[volnum]==NW_NS_NFS)
+ 	{
+ 		int result;
+ 
+ 		result=ncp_obtain_DOS_dir_base(server, volnum, dirent, name, &dirent);
+ 		if (result) return result;
+ 		return ncp_DeleteNSEntry(server, 1, volnum, dirent, NULL, NW_NS_DOS, htons(0x0680));
+ 	}
+ 	else
+#endif	/* CONFIG_NCPFS_NFS_NS */
+ 		return ncp_DeleteNSEntry(server, 1, volnum, dirent, name, server->name_space[volnum], htons(0x0680));
+}
+
+static inline void ConvertToNWfromDWORD(__u32 sfd, __u8 ret[6])
+{
+	__u16 *dest = (__u16 *) ret;
+	memcpy(ret + 2, &sfd, 4);
+	dest[0] = cpu_to_le16((le16_to_cpu(dest[1]) + le16_to_cpu(1)));
+	return;
+}
+
+/* If both dir and name are NULL, then in target there's already a
+   looked-up entry that wants to be opened. */
+int ncp_open_create_file_or_subdir(struct ncp_server *server,
+				   struct inode *dir, char *name,
+				   int open_create_mode,
+				   __u32 create_attributes,
+				   int desired_acc_rights,
+				   struct ncp_entry_info *target)
+{
+	__u16 search_attribs = ntohs(0x0600);
+	__u8  volnum = target->i.volNumber;
+	__u32 dirent = target->i.dirEntNum;
+	int result;
+
+	if (dir)
+	{
+		volnum = NCP_FINFO(dir)->volNumber;
+		dirent = NCP_FINFO(dir)->dirEntNum;
+	}
+
+	if ((create_attributes & aDIR) != 0) {
+		search_attribs |= ntohs(0x0080);
+	}
+	ncp_init_request(server);
+	ncp_add_byte(server, 1);	/* subfunction */
+	ncp_add_byte(server, server->name_space[volnum]);
+	ncp_add_byte(server, open_create_mode);
+	ncp_add_word(server, search_attribs);
+	ncp_add_dword(server, RIM_ALL);
+	ncp_add_dword(server, create_attributes);
+	/* The desired acc rights seem to be the inherited rights mask
+	   for directories */
+	ncp_add_word(server, desired_acc_rights);
+	ncp_add_handle_path(server, volnum, dirent, 1, name);
+
+	if ((result = ncp_request(server, 87)) != 0)
+		goto out;
+	if (!(create_attributes & aDIR))
+		target->opened = 1;
+	target->server_file_handle = ncp_reply_dword(server, 0);
+	target->open_create_action = ncp_reply_byte(server, 4);
+
+	/* in target there's a new finfo to fill */
+	ncp_extract_file_info(ncp_reply_data(server, 6), &(target->i));
+	ConvertToNWfromDWORD(target->server_file_handle, target->file_handle);
+
+out:
+	ncp_unlock_server(server);
+	return result;
+}
+
+int
+ncp_initialize_search(struct ncp_server *server, struct inode *dir,
+			struct nw_search_sequence *target)
+{
+	__u8  volnum = NCP_FINFO(dir)->volNumber;
+	__u32 dirent = NCP_FINFO(dir)->dirEntNum;
+	int result;
+
+	ncp_init_request(server);
+	ncp_add_byte(server, 2);	/* subfunction */
+	ncp_add_byte(server, server->name_space[volnum]);
+	ncp_add_byte(server, 0);	/* reserved */
+	ncp_add_handle_path(server, volnum, dirent, 1, NULL);
+
+	result = ncp_request(server, 87);
+	if (result)
+		goto out;
+	memcpy(target, ncp_reply_data(server, 0), sizeof(*target));
+
+out:
+	ncp_unlock_server(server);
+	return result;
+}
+
+/* Search for everything */
+int ncp_search_for_file_or_subdir(struct ncp_server *server,
+				  struct nw_search_sequence *seq,
+				  struct nw_info_struct *target)
+{
+	int result;
+
+	ncp_init_request(server);
+	ncp_add_byte(server, 3);	/* subfunction */
+	ncp_add_byte(server, server->name_space[seq->volNumber]);
+	ncp_add_byte(server, 0);	/* data stream (???) */
+	ncp_add_word(server, htons(0x0680));	/* Search attribs */
+	ncp_add_dword(server, RIM_ALL);		/* return info mask */
+	ncp_add_mem(server, seq, 9);
+#ifdef CONFIG_NCPFS_NFS_NS
+	if (server->name_space[seq->volNumber] == NW_NS_NFS) {
+		ncp_add_byte(server, 0);	/* 0 byte pattern */
+	} else 
+#endif
+	{
+		ncp_add_byte(server, 2);	/* 2 byte pattern */
+		ncp_add_byte(server, 0xff);	/* following is a wildcard */
+		ncp_add_byte(server, '*');
+	}
+	
+	if ((result = ncp_request(server, 87)) != 0)
+		goto out;
+	memcpy(seq, ncp_reply_data(server, 0), sizeof(*seq));
+	ncp_extract_file_info(ncp_reply_data(server, 10), target);
+
+out:
+	ncp_unlock_server(server);
+	return result;
+}
+
+int
+ncp_RenameNSEntry(struct ncp_server *server,
+		  struct inode *old_dir, char *old_name, int old_type,
+		  struct inode *new_dir, char *new_name)
+{
+	int result = -EINVAL;
+
+	if ((old_dir == NULL) || (old_name == NULL) ||
+	    (new_dir == NULL) || (new_name == NULL))
+		goto out;
+
+	ncp_init_request(server);
+	ncp_add_byte(server, 4);	/* subfunction */
+	ncp_add_byte(server, server->name_space[NCP_FINFO(old_dir)->volNumber]);
+	ncp_add_byte(server, 1);	/* rename flag */
+	ncp_add_word(server, old_type);	/* search attributes */
+
+	/* source Handle Path */
+	ncp_add_byte(server, NCP_FINFO(old_dir)->volNumber);
+	ncp_add_dword(server, NCP_FINFO(old_dir)->dirEntNum);
+	ncp_add_byte(server, 1);
+	ncp_add_byte(server, 1);	/* 1 source component */
+
+	/* dest Handle Path */
+	ncp_add_byte(server, NCP_FINFO(new_dir)->volNumber);
+	ncp_add_dword(server, NCP_FINFO(new_dir)->dirEntNum);
+	ncp_add_byte(server, 1);
+	ncp_add_byte(server, 1);	/* 1 destination component */
+
+	/* source path string */
+	ncp_add_pstring(server, old_name);
+	/* dest path string */
+	ncp_add_pstring(server, new_name);
+
+	result = ncp_request(server, 87);
+	ncp_unlock_server(server);
+out:
+	return result;
+}
+
+int ncp_ren_or_mov_file_or_subdir(struct ncp_server *server,
+				struct inode *old_dir, char *old_name,
+				struct inode *new_dir, char *new_name)
+{
+        int result;
+        int old_type = htons(0x0600);
+
+/* If somebody can do it atomic, call me... vandrove@vc.cvut.cz */
+	result = ncp_RenameNSEntry(server, old_dir, old_name, old_type,
+	                                   new_dir, new_name);
+        if (result == 0xFF)	/* File Not Found, try directory */
+	{
+		old_type = htons(0x1600);
+		result = ncp_RenameNSEntry(server, old_dir, old_name, old_type,
+						   new_dir, new_name);
+	}
+	if (result != 0x92) return result;	/* All except NO_FILES_RENAMED */
+	result = ncp_del_file_or_subdir(server, new_dir, new_name);
+	if (result != 0) return -EACCES;
+	result = ncp_RenameNSEntry(server, old_dir, old_name, old_type,
+					   new_dir, new_name);
+	return result;
+}
+	
+
+/* We have to transfer to/from user space */
+int
+ncp_read_kernel(struct ncp_server *server, const char *file_id,
+	     __u32 offset, __u16 to_read, char *target, int *bytes_read)
+{
+	char *source;
+	int result;
+
+	ncp_init_request(server);
+	ncp_add_byte(server, 0);
+	ncp_add_mem(server, file_id, 6);
+	ncp_add_dword(server, htonl(offset));
+	ncp_add_word(server, htons(to_read));
+
+	if ((result = ncp_request(server, 72)) != 0) {
+		goto out;
+	}
+	*bytes_read = ntohs(ncp_reply_word(server, 0));
+	source = ncp_reply_data(server, 2 + (offset & 1));
+
+	memcpy(target, source, *bytes_read);
+out:
+	ncp_unlock_server(server);
+	return result;
+}
+
+/* There is a problem... egrep and some other silly tools do:
+	x = mmap(NULL, MAP_PRIVATE, PROT_READ|PROT_WRITE, <ncpfs fd>, 32768);
+	read(<ncpfs fd>, x, 32768);
+   Now copying read result by copy_to_user causes pagefault. This pagefault
+   could not be handled because of server was locked due to read. So we have
+   to use temporary buffer. So ncp_unlock_server must be done before
+   copy_to_user (and for write, copy_from_user must be done before 
+   ncp_init_request... same applies for send raw packet ioctl). Because of
+   file is normally read in bigger chunks, caller provides kmalloced 
+   (vmalloced) chunk of memory with size >= to_read...
+ */
+int
+ncp_read_bounce(struct ncp_server *server, const char *file_id,
+	 __u32 offset, __u16 to_read, char *target, int *bytes_read,
+	 void* bounce, __u32 bufsize)
+{
+	int result;
+
+	ncp_init_request(server);
+	ncp_add_byte(server, 0);
+	ncp_add_mem(server, file_id, 6);
+	ncp_add_dword(server, htonl(offset));
+	ncp_add_word(server, htons(to_read));
+	result = ncp_request2(server, 72, bounce, bufsize);
+	ncp_unlock_server(server);
+	if (!result) {
+		int len = be16_to_cpu(get_unaligned((__u16*)((char*)bounce + 
+			  sizeof(struct ncp_reply_header))));
+		result = -EIO;
+		if (len <= to_read) {
+			char* source;
+
+			source = (char*)bounce + 
+			         sizeof(struct ncp_reply_header) + 2 + 
+			         (offset & 1);
+			*bytes_read = len;
+			result = 0;
+			if (copy_to_user(target, source, len))
+				result = -EFAULT;
+		}
+	}
+	return result;
+}
+
+int
+ncp_write_kernel(struct ncp_server *server, const char *file_id,
+		 __u32 offset, __u16 to_write,
+		 const char *source, int *bytes_written)
+{
+	int result;
+
+	ncp_init_request(server);
+	ncp_add_byte(server, 0);
+	ncp_add_mem(server, file_id, 6);
+	ncp_add_dword(server, htonl(offset));
+	ncp_add_word(server, htons(to_write));
+	ncp_add_mem(server, source, to_write);
+	
+	if ((result = ncp_request(server, 73)) == 0)
+		*bytes_written = to_write;
+	ncp_unlock_server(server);
+	return result;
+}
+
+#ifdef CONFIG_NCPFS_IOCTL_LOCKING
+int
+ncp_LogPhysicalRecord(struct ncp_server *server, const char *file_id,
+	  __u8 locktype, __u32 offset, __u32 length, __u16 timeout)
+{
+	int result;
+
+	ncp_init_request(server);
+	ncp_add_byte(server, locktype);
+	ncp_add_mem(server, file_id, 6);
+	ncp_add_dword(server, htonl(offset));
+	ncp_add_dword(server, htonl(length));
+	ncp_add_word(server, htons(timeout));
+
+	if ((result = ncp_request(server, 0x1A)) != 0)
+	{
+		ncp_unlock_server(server);
+		return result;
+	}
+	ncp_unlock_server(server);
+	return 0;
+}
+
+int
+ncp_ClearPhysicalRecord(struct ncp_server *server, const char *file_id,
+	  __u32 offset, __u32 length)
+{
+	int result;
+
+	ncp_init_request(server);
+	ncp_add_byte(server, 0);	/* who knows... lanalyzer says that */
+	ncp_add_mem(server, file_id, 6);
+	ncp_add_dword(server, htonl(offset));
+	ncp_add_dword(server, htonl(length));
+
+	if ((result = ncp_request(server, 0x1E)) != 0)
+	{
+		ncp_unlock_server(server);
+		return result;
+	}
+	ncp_unlock_server(server);
+	return 0;
+}
+#endif	/* CONFIG_NCPFS_IOCTL_LOCKING */
+
+#ifdef CONFIG_NCPFS_NLS
+/* This are the NLS conversion routines with inspirations and code parts
+ * from the vfat file system and hints from Petr Vandrovec.
+ */
+
+inline unsigned char
+ncp__tolower(struct nls_table *t, unsigned char c)
+{
+	unsigned char nc = t->charset2lower[c];
+
+	return nc ? nc : c;
+}
+
+inline unsigned char
+ncp__toupper(struct nls_table *t, unsigned char c)
+{
+	unsigned char nc = t->charset2upper[c];
+
+	return nc ? nc : c;
+}
+
+int
+ncp__io2vol(struct ncp_server *server, unsigned char *vname, unsigned int *vlen,
+		const unsigned char *iname, unsigned int ilen, int cc)
+{
+	struct nls_table *in = server->nls_io;
+	struct nls_table *out = server->nls_vol;
+	unsigned char *vname_start;
+	unsigned char *vname_end;
+	const unsigned char *iname_end;
+
+	iname_end = iname + ilen;
+	vname_start = vname;
+	vname_end = vname + *vlen - 1;
+
+	while (iname < iname_end) {
+		int chl;
+		wchar_t ec;
+
+		if (NCP_IS_FLAG(server, NCP_FLAG_UTF8)) {
+			int k;
+
+			k = utf8_mbtowc(&ec, iname, iname_end - iname);
+			if (k < 0)
+				return -EINVAL;
+			iname += k;
+		} else {
+			if (*iname == NCP_ESC) {
+				int k;
+
+				if (iname_end - iname < 5)
+					goto nospec;
+
+				ec = 0;
+				for (k = 1; k < 5; k++) {
+					unsigned char nc;
+
+					nc = iname[k] - '0';
+					if (nc >= 10) {
+						nc -= 'A' - '0' - 10;
+						if ((nc < 10) || (nc > 15)) {
+							goto nospec;
+						}
+					}
+					ec = (ec << 4) | nc;
+				}
+				iname += 5;
+			} else {
+nospec:;			
+				if ( (chl = in->char2uni(iname, iname_end - iname, &ec)) < 0)
+					return chl;
+				iname += chl;
+			}
+		}
+
+		/* unitoupper should be here! */
+
+		chl = out->uni2char(ec, vname, vname_end - vname);
+		if (chl < 0)
+			return chl;
+
+		/* this is wrong... */
+		if (cc) {
+			int chi;
+
+			for (chi = 0; chi < chl; chi++){
+				vname[chi] = ncp_toupper(out, vname[chi]);
+			}
+		}
+		vname += chl;
+	}
+
+	*vname = 0;
+	*vlen = vname - vname_start;
+	return 0;
+}
+
+int
+ncp__vol2io(struct ncp_server *server, unsigned char *iname, unsigned int *ilen,
+		const unsigned char *vname, unsigned int vlen, int cc)
+{
+	struct nls_table *in = server->nls_vol;
+	struct nls_table *out = server->nls_io;
+	const unsigned char *vname_end;
+	unsigned char *iname_start;
+	unsigned char *iname_end;
+	unsigned char *vname_cc;
+	int err;
+
+	vname_cc = NULL;
+
+	if (cc) {
+		int i;
+
+		/* this is wrong! */
+		vname_cc = kmalloc(vlen, GFP_KERNEL);
+		if (!vname_cc)
+			return -ENOMEM;
+		for (i = 0; i < vlen; i++)
+			vname_cc[i] = ncp_tolower(in, vname[i]);
+		vname = vname_cc;
+	}
+
+	iname_start = iname;
+	iname_end = iname + *ilen - 1;
+	vname_end = vname + vlen;
+
+	while (vname < vname_end) {
+		wchar_t ec;
+		int chl;
+
+		if ( (chl = in->char2uni(vname, vname_end - vname, &ec)) < 0) {
+			err = chl;
+			goto quit;
+		}
+		vname += chl;
+
+		/* unitolower should be here! */
+
+		if (NCP_IS_FLAG(server, NCP_FLAG_UTF8)) {
+			int k;
+
+			k = utf8_wctomb(iname, ec, iname_end - iname);
+			if (k < 0) {
+				err = -ENAMETOOLONG;
+				goto quit;
+			}
+			iname += k;
+		} else {
+			if ( (chl = out->uni2char(ec, iname, iname_end - iname)) >= 0) {
+				iname += chl;
+			} else {
+				int k;
+
+				if (iname_end - iname < 5) {
+					err = -ENAMETOOLONG;
+					goto quit;
+				}
+				*iname = NCP_ESC;
+				for (k = 4; k > 0; k--) {
+					unsigned char v;
+					
+					v = (ec & 0xF) + '0';
+					if (v > '9') {
+						v += 'A' - '9' - 1;
+					}
+					iname[k] = v;
+					ec >>= 4;
+				}
+				iname += 5;
+			}
+		}
+	}
+
+	*iname = 0;
+	*ilen = iname - iname_start;
+	err = 0;
+quit:;
+	if (cc)
+		kfree(vname_cc);
+	return err;
+}
+
+#else
+
+int
+ncp__io2vol(unsigned char *vname, unsigned int *vlen,
+		const unsigned char *iname, unsigned int ilen, int cc)
+{
+	int i;
+
+	if (*vlen <= ilen)
+		return -ENAMETOOLONG;
+
+	if (cc)
+		for (i = 0; i < ilen; i++) {
+			*vname = toupper(*iname);
+			vname++;
+			iname++;
+		}
+	else {
+		memmove(vname, iname, ilen);
+		vname += ilen;
+	}
+
+	*vlen = ilen;
+	*vname = 0;
+	return 0;
+}
+
+int
+ncp__vol2io(unsigned char *iname, unsigned int *ilen,
+		const unsigned char *vname, unsigned int vlen, int cc)
+{
+	int i;
+
+	if (*ilen <= vlen)
+		return -ENAMETOOLONG;
+
+	if (cc)
+		for (i = 0; i < vlen; i++) {
+			*iname = tolower(*vname);
+			iname++;
+			vname++;
+		}
+	else {
+		memmove(iname, vname, vlen);
+		iname += vlen;
+	}
+
+	*ilen = vlen;
+	*iname = 0;
+	return 0;
+}
+
+#endif
+
+inline int
+ncp_strnicmp(struct nls_table *t, const unsigned char *s1,
+					const unsigned char *s2, int n)
+{
+	int i;
+
+	for (i=0; i<n; i++)
+		if (ncp_tolower(t, s1[i]) != ncp_tolower(t, s2[i]))
+			return 1;
+
+	return 0;
+}
diff --git a/fs/ncpfs/ncplib_kernel.h b/fs/ncpfs/ncplib_kernel.h
new file mode 100644
index 00000000000000..275dc6e5044be2
--- /dev/null
+++ b/fs/ncpfs/ncplib_kernel.h
@@ -0,0 +1,221 @@
+/*
+ *  ncplib_kernel.h
+ *
+ *  Copyright (C) 1995, 1996 by Volker Lendecke
+ *  Modified for big endian by J.F. Chadima and David S. Miller
+ *  Modified 1997 Peter Waltenberg, Bill Hawes, David Woodhouse for 2.1 dcache
+ *  Modified 1998, 1999 Wolfram Pienkoss for NLS
+ *  Modified 1999 Wolfram Pienkoss for directory caching
+ *
+ */
+
+#ifndef _NCPLIB_H
+#define _NCPLIB_H
+
+#include <linux/config.h>
+
+#include <linux/fs.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/stat.h>
+#include <linux/fcntl.h>
+#include <linux/pagemap.h>
+
+#include <asm/uaccess.h>
+#include <asm/byteorder.h>
+#include <asm/unaligned.h>
+#include <asm/string.h>
+
+#ifdef CONFIG_NCPFS_NLS
+#include <linux/nls.h>
+#else
+#include <linux/ctype.h>
+#endif /* CONFIG_NCPFS_NLS */
+
+#include <linux/ncp_fs.h>
+
+#define NCP_MIN_SYMLINK_SIZE	8
+#define NCP_MAX_SYMLINK_SIZE	512
+
+#define NCP_BLOCK_SHIFT		9
+#define NCP_BLOCK_SIZE		(1 << (NCP_BLOCK_SHIFT))
+
+int ncp_negotiate_buffersize(struct ncp_server *, int, int *);
+int ncp_negotiate_size_and_options(struct ncp_server *server, int size,
+  			  int options, int *ret_size, int *ret_options);
+int ncp_get_volume_info_with_number(struct ncp_server *, int,
+				struct ncp_volume_info *);
+int ncp_close_file(struct ncp_server *, const char *);
+static inline int ncp_read_bounce_size(__u32 size) {
+	return sizeof(struct ncp_reply_header) + 2 + 2 + size + 8;
+};
+int ncp_read_bounce(struct ncp_server *, const char *, __u32, __u16, 
+		char *, int *, void* bounce, __u32 bouncelen);
+int ncp_read_kernel(struct ncp_server *, const char *, __u32, __u16, 
+		char *, int *);
+int ncp_write_kernel(struct ncp_server *, const char *, __u32, __u16,
+		const char *, int *);
+
+static inline void ncp_inode_close(struct inode *inode) {
+	atomic_dec(&NCP_FINFO(inode)->opened);
+}
+
+int ncp_obtain_info(struct ncp_server *server, struct inode *, char *,
+		struct nw_info_struct *target);
+int ncp_lookup_volume(struct ncp_server *, char *, struct nw_info_struct *);
+int ncp_modify_file_or_subdir_dos_info(struct ncp_server *, struct inode *,
+	 __u32, const struct nw_modify_dos_info *info);
+int ncp_modify_file_or_subdir_dos_info_path(struct ncp_server *, struct inode *,
+	 const char* path, __u32, const struct nw_modify_dos_info *info);
+
+int ncp_del_file_or_subdir2(struct ncp_server *, struct dentry*);
+int ncp_del_file_or_subdir(struct ncp_server *, struct inode *, char *);
+int ncp_open_create_file_or_subdir(struct ncp_server *, struct inode *, char *,
+				int, __u32, int, struct ncp_entry_info *);
+
+int ncp_initialize_search(struct ncp_server *, struct inode *,
+		      struct nw_search_sequence *target);
+int ncp_search_for_file_or_subdir(struct ncp_server *server,
+			      struct nw_search_sequence *seq,
+			      struct nw_info_struct *target);
+
+int ncp_ren_or_mov_file_or_subdir(struct ncp_server *server,
+			      struct inode *, char *, struct inode *, char *);
+
+
+int
+ncp_LogPhysicalRecord(struct ncp_server *server,
+		      const char *file_id, __u8 locktype,
+		      __u32 offset, __u32 length, __u16 timeout);
+
+#ifdef CONFIG_NCPFS_IOCTL_LOCKING
+int
+ncp_ClearPhysicalRecord(struct ncp_server *server,
+			const char *file_id,
+			__u32 offset, __u32 length);
+#endif	/* CONFIG_NCPFS_IOCTL_LOCKING */
+
+int
+ncp_mount_subdir(struct ncp_server *, struct nw_info_struct *,
+			__u8, __u8, __u32);
+
+#ifdef CONFIG_NCPFS_NLS
+
+unsigned char ncp__tolower(struct nls_table *, unsigned char);
+unsigned char ncp__toupper(struct nls_table *, unsigned char);
+int ncp__io2vol(struct ncp_server *, unsigned char *, unsigned int *,
+				const unsigned char *, unsigned int, int);
+int ncp__vol2io(struct ncp_server *, unsigned char *, unsigned int *,
+				const unsigned char *, unsigned int, int);
+
+#define NCP_ESC			':'
+#define NCP_IO_TABLE(dentry)	(NCP_SERVER((dentry)->d_inode)->nls_io)
+#define ncp_tolower(t, c)	ncp__tolower(t, c)
+#define ncp_toupper(t, c)	ncp__toupper(t, c)
+#define ncp_io2vol(S,m,i,n,k,U)	ncp__io2vol(S,m,i,n,k,U)
+#define ncp_vol2io(S,m,i,n,k,U)	ncp__vol2io(S,m,i,n,k,U)
+
+#else
+
+int ncp__io2vol(unsigned char *, unsigned int *,
+				const unsigned char *, unsigned int, int);
+int ncp__vol2io(unsigned char *, unsigned int *,
+				const unsigned char *, unsigned int, int);
+
+#define NCP_IO_TABLE(dentry)	NULL
+#define ncp_tolower(t, c)	tolower(c)
+#define ncp_toupper(t, c)	toupper(c)
+#define ncp_io2vol(S,m,i,n,k,U)	ncp__io2vol(m,i,n,k,U)
+#define ncp_vol2io(S,m,i,n,k,U)	ncp__vol2io(m,i,n,k,U)
+
+#endif /* CONFIG_NCPFS_NLS */
+
+int
+ncp_strnicmp(struct nls_table *,
+		const unsigned char *, const unsigned char *, int);
+
+#define NCP_GET_AGE(dentry)	(jiffies - (dentry)->d_time)
+#define NCP_MAX_AGE(server)	((server)->dentry_ttl)
+#define NCP_TEST_AGE(server,dentry)	(NCP_GET_AGE(dentry) < NCP_MAX_AGE(server))
+
+static inline void
+ncp_age_dentry(struct ncp_server* server, struct dentry* dentry)
+{
+	dentry->d_time = jiffies - server->dentry_ttl;
+}
+
+static inline void
+ncp_new_dentry(struct dentry* dentry)
+{
+	dentry->d_time = jiffies;
+}
+
+static inline void
+ncp_renew_dentries(struct dentry *parent)
+{
+	struct ncp_server *server = NCP_SERVER(parent->d_inode);
+	struct list_head *next;
+	struct dentry *dentry;
+
+	spin_lock(&dcache_lock);
+	next = parent->d_subdirs.next;
+	while (next != &parent->d_subdirs) {
+		dentry = list_entry(next, struct dentry, d_child);
+
+		if (dentry->d_fsdata == NULL)
+			ncp_age_dentry(server, dentry);
+		else
+			ncp_new_dentry(dentry);
+
+		next = next->next;
+	}
+	spin_unlock(&dcache_lock);
+}
+
+static inline void
+ncp_invalidate_dircache_entries(struct dentry *parent)
+{
+	struct ncp_server *server = NCP_SERVER(parent->d_inode);
+	struct list_head *next;
+	struct dentry *dentry;
+
+	spin_lock(&dcache_lock);
+	next = parent->d_subdirs.next;
+	while (next != &parent->d_subdirs) {
+		dentry = list_entry(next, struct dentry, d_child);
+		dentry->d_fsdata = NULL;
+		ncp_age_dentry(server, dentry);
+		next = next->next;
+	}
+	spin_unlock(&dcache_lock);
+}
+
+struct ncp_cache_head {
+	time_t		mtime;
+	unsigned long	time;	/* cache age */
+	unsigned long	end;	/* last valid fpos in cache */
+	int		eof;
+};
+
+#define NCP_DIRCACHE_SIZE	((int)(PAGE_CACHE_SIZE/sizeof(struct dentry *)))
+union ncp_dir_cache {
+	struct ncp_cache_head	head;
+	struct dentry		*dentry[NCP_DIRCACHE_SIZE];
+};
+
+#define NCP_FIRSTCACHE_SIZE	((int)((NCP_DIRCACHE_SIZE * \
+	sizeof(struct dentry *) - sizeof(struct ncp_cache_head)) / \
+	sizeof(struct dentry *)))
+
+#define NCP_DIRCACHE_START	(NCP_DIRCACHE_SIZE - NCP_FIRSTCACHE_SIZE)
+
+struct ncp_cache_control {
+	struct	ncp_cache_head		head;
+	struct	page			*page;
+	union	ncp_dir_cache		*cache;
+	unsigned long			fpos, ofs;
+	int				filled, valid, idx;
+};
+
+#endif /* _NCPLIB_H */
diff --git a/fs/ncpfs/ncpsign_kernel.c b/fs/ncpfs/ncpsign_kernel.c
new file mode 100644
index 00000000000000..7183ba4bcb92a9
--- /dev/null
+++ b/fs/ncpfs/ncpsign_kernel.c
@@ -0,0 +1,112 @@
+/*
+ *  ncpsign_kernel.c
+ *
+ *  Arne de Bruijn (arne@knoware.nl), 1997
+ *
+ */
+
+#include <linux/config.h>
+
+#ifdef CONFIG_NCPFS_PACKET_SIGNING
+
+#include <linux/string.h>
+#include <linux/ncp.h>
+#include "ncpsign_kernel.h"
+
+#define rol32(i,c) (((((i)&0xffffffff)<<c)&0xffffffff)| \
+                    (((i)&0xffffffff)>>(32-c)))
+/* i386: 32-bit, little endian, handles mis-alignment */
+#ifdef __i386__
+#define GET_LE32(p) (*(int *)(p))
+#define PUT_LE32(p,v) { *(int *)(p)=v; }
+#else
+/* from include/ncplib.h */
+#define BVAL(buf,pos) (((__u8 *)(buf))[pos])
+#define PVAL(buf,pos) ((unsigned)BVAL(buf,pos))
+#define BSET(buf,pos,val) (BVAL(buf,pos) = (val))
+
+static inline __u16
+WVAL_LH(__u8 * buf, int pos)
+{
+	return PVAL(buf, pos) | PVAL(buf, pos + 1) << 8;
+}
+static inline __u32
+DVAL_LH(__u8 * buf, int pos)
+{
+	return WVAL_LH(buf, pos) | WVAL_LH(buf, pos + 2) << 16;
+}
+static inline void
+WSET_LH(__u8 * buf, int pos, __u16 val)
+{
+	BSET(buf, pos, val & 0xff);
+	BSET(buf, pos + 1, val >> 8);
+}
+static inline void
+DSET_LH(__u8 * buf, int pos, __u32 val)
+{
+	WSET_LH(buf, pos, val & 0xffff);
+	WSET_LH(buf, pos + 2, val >> 16);
+}
+
+#define GET_LE32(p) DVAL_LH(p,0)
+#define PUT_LE32(p,v) DSET_LH(p,0,v)
+#endif
+
+static void nwsign(char *r_data1, char *r_data2, char *outdata) {
+ int i;
+ unsigned int w0,w1,w2,w3;
+ static int rbit[4]={0, 2, 1, 3};
+#ifdef __i386__
+ unsigned int *data2=(int *)r_data2;
+#else
+ unsigned int data2[16];
+ for (i=0;i<16;i++)
+  data2[i]=GET_LE32(r_data2+(i<<2));
+#endif 
+ w0=GET_LE32(r_data1);
+ w1=GET_LE32(r_data1+4);
+ w2=GET_LE32(r_data1+8);
+ w3=GET_LE32(r_data1+12);
+ for (i=0;i<16;i+=4) {
+  w0=rol32(w0 + ((w1 & w2) | ((~w1) & w3)) + data2[i+0],3);
+  w3=rol32(w3 + ((w0 & w1) | ((~w0) & w2)) + data2[i+1],7);
+  w2=rol32(w2 + ((w3 & w0) | ((~w3) & w1)) + data2[i+2],11);
+  w1=rol32(w1 + ((w2 & w3) | ((~w2) & w0)) + data2[i+3],19);
+ }
+ for (i=0;i<4;i++) {
+  w0=rol32(w0 + (((w2 | w3) & w1) | (w2 & w3)) + 0x5a827999 + data2[i+0],3);
+  w3=rol32(w3 + (((w1 | w2) & w0) | (w1 & w2)) + 0x5a827999 + data2[i+4],5);
+  w2=rol32(w2 + (((w0 | w1) & w3) | (w0 & w1)) + 0x5a827999 + data2[i+8],9);
+  w1=rol32(w1 + (((w3 | w0) & w2) | (w3 & w0)) + 0x5a827999 + data2[i+12],13);
+ }
+ for (i=0;i<4;i++) {
+  w0=rol32(w0 + ((w1 ^ w2) ^ w3) + 0x6ed9eba1 + data2[rbit[i]+0],3);
+  w3=rol32(w3 + ((w0 ^ w1) ^ w2) + 0x6ed9eba1 + data2[rbit[i]+8],9);
+  w2=rol32(w2 + ((w3 ^ w0) ^ w1) + 0x6ed9eba1 + data2[rbit[i]+4],11);
+  w1=rol32(w1 + ((w2 ^ w3) ^ w0) + 0x6ed9eba1 + data2[rbit[i]+12],15);
+ }
+ PUT_LE32(outdata,(w0+GET_LE32(r_data1)) & 0xffffffff);
+ PUT_LE32(outdata+4,(w1+GET_LE32(r_data1+4)) & 0xffffffff);
+ PUT_LE32(outdata+8,(w2+GET_LE32(r_data1+8)) & 0xffffffff);
+ PUT_LE32(outdata+12,(w3+GET_LE32(r_data1+12)) & 0xffffffff);
+}
+
+/* Make a signature for the current packet and add it at the end of the */
+/* packet. */
+void sign_packet(struct ncp_server *server, int *size) {
+ char data[64];
+
+ memset(data,0,64);
+ memcpy(data,server->sign_root,8);
+ PUT_LE32(data+8,(*size));
+ memcpy(data+12,server->packet+sizeof(struct ncp_request_header)-1,
+  min_t(unsigned int,(*size)-sizeof(struct ncp_request_header)+1,52));
+
+ nwsign(server->sign_last,data,server->sign_last);
+
+ memcpy(server->packet+(*size),server->sign_last,8);
+ (*size)+=8;
+}
+
+#endif	/* CONFIG_NCPFS_PACKET_SIGNING */
+
diff --git a/fs/ncpfs/ncpsign_kernel.h b/fs/ncpfs/ncpsign_kernel.h
new file mode 100644
index 00000000000000..141338fb5ad291
--- /dev/null
+++ b/fs/ncpfs/ncpsign_kernel.h
@@ -0,0 +1,15 @@
+/*
+ *  ncpsign_kernel.h
+ *
+ *  Arne de Bruijn (arne@knoware.nl), 1997
+ *
+ */
+ 
+#ifndef _NCPSIGN_KERNEL_H
+#define _NCPSIGN_KERNEL_H
+
+#include <linux/ncp_fs.h>
+
+void sign_packet(struct ncp_server *server, int *size);
+
+#endif
diff --git a/fs/ncpfs/sock.c b/fs/ncpfs/sock.c
new file mode 100644
index 00000000000000..470ea5e96ae346
--- /dev/null
+++ b/fs/ncpfs/sock.c
@@ -0,0 +1,610 @@
+/*
+ *  linux/fs/ncpfs/sock.c
+ *
+ *  Copyright (C) 1992, 1993  Rick Sladkey
+ *
+ *  Modified 1995, 1996 by Volker Lendecke to be usable for ncp
+ *  Modified 1997 Peter Waltenberg, Bill Hawes, David Woodhouse for 2.1 dcache
+ *
+ */
+
+#include <linux/config.h>
+
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/socket.h>
+#include <linux/fcntl.h>
+#include <linux/stat.h>
+#include <asm/uaccess.h>
+#include <linux/in.h>
+#include <linux/net.h>
+#include <linux/mm.h>
+#include <linux/netdevice.h>
+#include <linux/signal.h>
+#include <net/scm.h>
+#include <net/sock.h>
+#include <linux/ipx.h>
+#include <linux/poll.h>
+#include <linux/file.h>
+
+#include <linux/ncp_fs.h>
+
+#ifdef CONFIG_NCPFS_PACKET_SIGNING
+#include "ncpsign_kernel.h"
+#endif
+
+static int _recv(struct socket *sock, unsigned char *ubuf, int size,
+		 unsigned flags)
+{
+	struct iovec iov;
+	struct msghdr msg;
+	struct scm_cookie scm;
+
+	memset(&scm, 0, sizeof(scm));
+
+	iov.iov_base = ubuf;
+	iov.iov_len = size;
+
+	msg.msg_name = NULL;
+	msg.msg_namelen = 0;
+	msg.msg_control = NULL;
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+	return sock->ops->recvmsg(sock, &msg, size, flags, &scm);
+}
+
+static int _send(struct socket *sock, const void *buff, int len)
+{
+	struct iovec iov;
+	struct msghdr msg;
+	struct scm_cookie scm;
+	int err;
+
+	iov.iov_base = (void *) buff;
+	iov.iov_len = len;
+
+	msg.msg_name = NULL;
+	msg.msg_namelen = 0;
+	msg.msg_control = NULL;
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+	msg.msg_flags = 0;
+
+	err = scm_send(sock, &msg, &scm);
+	if (err < 0) {
+		return err;
+	}
+	err = sock->ops->sendmsg(sock, &msg, len, &scm);
+	scm_destroy(&scm);
+	return err;
+}
+
+static int do_ncp_rpc_call(struct ncp_server *server, int size,
+		struct ncp_reply_header* reply_buf, int max_reply_size)
+{
+	struct file *file;
+	struct socket *sock;
+	int result;
+	char *start = server->packet;
+	poll_table wait_table;
+	int init_timeout, max_timeout;
+	int timeout;
+	int retrans;
+	int major_timeout_seen;
+	int acknowledge_seen;
+	int n;
+
+	/* We have to check the result, so store the complete header */
+	struct ncp_request_header request =
+	*((struct ncp_request_header *) (server->packet));
+
+	struct ncp_reply_header reply;
+
+	file = server->ncp_filp;
+	sock = &file->f_dentry->d_inode->u.socket_i;
+
+	init_timeout = server->m.time_out;
+	max_timeout = NCP_MAX_RPC_TIMEOUT;
+	retrans = server->m.retry_count;
+	major_timeout_seen = 0;
+	acknowledge_seen = 0;
+
+	for (n = 0, timeout = init_timeout;; n++, timeout <<= 1) {
+		/*
+		DDPRINTK("ncpfs: %08lX:%02X%02X%02X%02X%02X%02X:%04X\n",
+			 htonl(server->m.serv_addr.sipx_network),
+			 server->m.serv_addr.sipx_node[0],
+			 server->m.serv_addr.sipx_node[1],
+			 server->m.serv_addr.sipx_node[2],
+			 server->m.serv_addr.sipx_node[3],
+			 server->m.serv_addr.sipx_node[4],
+			 server->m.serv_addr.sipx_node[5],
+			 ntohs(server->m.serv_addr.sipx_port));
+		*/
+		DDPRINTK("ncpfs: req.typ: %04X, con: %d, "
+			 "seq: %d",
+			 request.type,
+			 (request.conn_high << 8) + request.conn_low,
+			 request.sequence);
+		DDPRINTK(" func: %d\n",
+			 request.function);
+
+		result = _send(sock, (void *) start, size);
+		if (result < 0) {
+			printk(KERN_ERR "ncp_rpc_call: send error = %d\n", result);
+			break;
+		}
+	      re_select:
+		poll_initwait(&wait_table);
+		/* mb() is not necessary because ->poll() will serialize
+		   instructions adding the wait_table waitqueues in the
+		   waitqueue-head before going to calculate the mask-retval. */
+		__set_current_state(TASK_INTERRUPTIBLE);
+		if (!(sock->ops->poll(file, sock, &wait_table) & POLLIN)) {
+			int timed_out;
+			if (timeout > max_timeout) {
+				/* JEJB/JSP 2/7/94
+				 * This is useful to see if the system is
+				 * hanging */
+				if (acknowledge_seen == 0) {
+					printk(KERN_WARNING "NCP max timeout\n");
+				}
+				timeout = max_timeout;
+			}
+			timed_out = !schedule_timeout(timeout);
+			poll_freewait(&wait_table);
+			current->state = TASK_RUNNING;
+			if (signal_pending(current)) {
+				result = -ERESTARTSYS;
+				break;
+			}
+			if(wait_table.error) {
+				result = wait_table.error;
+				break;
+			}
+			if (timed_out) {
+				if (n < retrans)
+					continue;
+				if (server->m.flags & NCP_MOUNT_SOFT) {
+					printk(KERN_WARNING "NCP server not responding\n");
+					result = -EIO;
+					break;
+				}
+				n = 0;
+				timeout = init_timeout;
+				if (init_timeout < max_timeout)
+					init_timeout <<= 1;
+				if (!major_timeout_seen) {
+					printk(KERN_WARNING "NCP server not responding\n");
+				}
+				major_timeout_seen = 1;
+				continue;
+			}
+		} else {
+			poll_freewait(&wait_table);
+		}
+		current->state = TASK_RUNNING;
+
+		/* Get the header from the next packet using a peek, so keep it
+		 * on the recv queue.  If it is wrong, it will be some reply
+		 * we don't now need, so discard it */
+		result = _recv(sock, (void *) &reply, sizeof(reply),
+			       MSG_PEEK | MSG_DONTWAIT);
+		if (result < 0) {
+			if (result == -EAGAIN) {
+				DDPRINTK("ncp_rpc_call: bad select ready\n");
+				goto re_select;
+			}
+			if (result == -ECONNREFUSED) {
+				DPRINTK("ncp_rpc_call: server playing coy\n");
+				goto re_select;
+			}
+			if (result != -ERESTARTSYS) {
+				printk(KERN_ERR "ncp_rpc_call: recv error = %d\n",
+				       -result);
+			}
+			break;
+		}
+		if ((result == sizeof(reply))
+		    && (reply.type == NCP_POSITIVE_ACK)) {
+			/* Throw away the packet */
+			DPRINTK("ncp_rpc_call: got positive acknowledge\n");
+			_recv(sock, (void *) &reply, sizeof(reply),
+			      MSG_DONTWAIT);
+			n = 0;
+			timeout = max_timeout;
+			acknowledge_seen = 1;
+			goto re_select;
+		}
+		DDPRINTK("ncpfs: rep.typ: %04X, con: %d, tsk: %d,"
+			 "seq: %d\n",
+			 reply.type,
+			 (reply.conn_high << 8) + reply.conn_low,
+			 reply.task,
+			 reply.sequence);
+
+		if ((result >= sizeof(reply))
+		    && (reply.type == NCP_REPLY)
+		    && ((request.type == NCP_ALLOC_SLOT_REQUEST)
+			|| ((reply.sequence == request.sequence)
+			    && (reply.conn_low == request.conn_low)
+/* seem to get wrong task from NW311 && (reply.task      == request.task) */
+			    && (reply.conn_high == request.conn_high)))) {
+			if (major_timeout_seen)
+				printk(KERN_NOTICE "NCP server OK\n");
+			break;
+		}
+		/* JEJB/JSP 2/7/94
+		 * we have xid mismatch, so discard the packet and start
+		 * again.  What a hack! but I can't call recvfrom with
+		 * a null buffer yet. */
+		_recv(sock, (void *) &reply, sizeof(reply), MSG_DONTWAIT);
+
+		DPRINTK("ncp_rpc_call: reply mismatch\n");
+		goto re_select;
+	}
+	/* 
+	 * we have the correct reply, so read into the correct place and
+	 * return it
+	 */
+	result = _recv(sock, (void *)reply_buf, max_reply_size, MSG_DONTWAIT);
+	if (result < 0) {
+		printk(KERN_WARNING "NCP: notice message: result=%d\n", result);
+	} else if (result < sizeof(struct ncp_reply_header)) {
+		printk(KERN_ERR "NCP: just caught a too small read memory size..., "
+		       "email to NET channel\n");
+		printk(KERN_ERR "NCP: result=%d\n", result);
+		result = -EIO;
+	}
+
+	return result;
+}
+
+static int do_tcp_rcv(struct ncp_server *server, void *buffer, size_t len) {
+	poll_table wait_table;
+	struct file *file;
+	struct socket *sock;
+	int init_timeout;
+	size_t dataread;
+	int result = 0;
+	
+	file = server->ncp_filp;
+	sock = &file->f_dentry->d_inode->u.socket_i;
+	
+	dataread = 0;
+
+	init_timeout = server->m.time_out * 20;
+	
+	/* hard-mounted volumes have no timeout, except connection close... */
+	if (!(server->m.flags & NCP_MOUNT_SOFT))
+		init_timeout = 0x7FFF0000;
+
+	while (len) {
+		poll_initwait(&wait_table);
+		/* mb() is not necessary because ->poll() will serialize
+		   instructions adding the wait_table waitqueues in the
+		   waitqueue-head before going to calculate the mask-retval. */
+		__set_current_state(TASK_INTERRUPTIBLE);
+		if (!(sock->ops->poll(file, sock, &wait_table) & POLLIN)) {
+			init_timeout = schedule_timeout(init_timeout);
+			poll_freewait(&wait_table);
+			current->state = TASK_RUNNING;
+			if (signal_pending(current)) {
+				return -ERESTARTSYS;
+			}
+			if (!init_timeout) {
+				return -EIO;
+			}
+			if(wait_table.error) {
+				return wait_table.error;
+			}
+		} else {
+			poll_freewait(&wait_table);
+		}
+		current->state = TASK_RUNNING;
+
+		result = _recv(sock, buffer, len, MSG_DONTWAIT);
+		if (result < 0) {
+			if (result == -EAGAIN) {
+				DDPRINTK("ncpfs: tcp: bad select ready\n");
+				continue;
+			}
+			return result;
+		}
+		if (result == 0) {
+			printk(KERN_ERR "ncpfs: tcp: EOF on socket\n");
+			return -EIO;
+		}
+		if (result > len) {
+			printk(KERN_ERR "ncpfs: tcp: bug in recvmsg\n");
+			return -EIO;			
+		}
+		dataread += result;
+		buffer += result;
+		len -= result;
+	}
+	return 0;
+}	
+
+#define NCP_TCP_XMIT_MAGIC	(0x446D6454)
+#define NCP_TCP_XMIT_VERSION	(1)
+#define NCP_TCP_RCVD_MAGIC	(0x744E6350)
+
+static int do_ncp_tcp_rpc_call(struct ncp_server *server, int size,
+		struct ncp_reply_header* reply_buf, int max_reply_size)
+{
+	struct file *file;
+	struct socket *sock;
+	int result;
+	struct iovec iov[2];
+	struct msghdr msg;
+	struct scm_cookie scm;
+	__u32 ncptcp_rcvd_hdr[2];
+	__u32 ncptcp_xmit_hdr[4];
+	int   datalen;
+
+	/* We have to check the result, so store the complete header */
+	struct ncp_request_header request =
+	*((struct ncp_request_header *) (server->packet));
+
+	file = server->ncp_filp;
+	sock = &file->f_dentry->d_inode->u.socket_i;
+	
+	ncptcp_xmit_hdr[0] = htonl(NCP_TCP_XMIT_MAGIC);
+	ncptcp_xmit_hdr[1] = htonl(size + 16);
+	ncptcp_xmit_hdr[2] = htonl(NCP_TCP_XMIT_VERSION);
+	ncptcp_xmit_hdr[3] = htonl(max_reply_size + 8);
+
+	DDPRINTK("ncpfs: req.typ: %04X, con: %d, "
+		 "seq: %d",
+		 request.type,
+		 (request.conn_high << 8) + request.conn_low,
+		 request.sequence);
+	DDPRINTK(" func: %d\n",
+		 request.function);
+
+	iov[1].iov_base = (void *) server->packet;
+	iov[1].iov_len = size;
+	iov[0].iov_base = ncptcp_xmit_hdr;
+	iov[0].iov_len = 16;
+	msg.msg_name = NULL;
+	msg.msg_namelen = 0;
+	msg.msg_control = NULL;
+	msg.msg_iov = iov;
+	msg.msg_iovlen = 2;
+	msg.msg_flags = MSG_NOSIGNAL;
+
+	result = scm_send(sock, &msg, &scm);
+	if (result < 0) {
+		return result;
+	}
+	result = sock->ops->sendmsg(sock, &msg, size + 16, &scm);
+	scm_destroy(&scm);
+	if (result < 0) {
+		printk(KERN_ERR "ncpfs: tcp: Send failed: %d\n", result);
+		return result;
+	}
+rstrcv:
+	result = do_tcp_rcv(server, ncptcp_rcvd_hdr, 8);
+	if (result)
+		return result;
+	if (ncptcp_rcvd_hdr[0] != htonl(NCP_TCP_RCVD_MAGIC)) {
+		printk(KERN_ERR "ncpfs: tcp: Unexpected reply type %08X\n", ntohl(ncptcp_rcvd_hdr[0]));
+		return -EIO;
+	}
+	datalen = ntohl(ncptcp_rcvd_hdr[1]);
+	if (datalen < 8 + sizeof(*reply_buf) || datalen > max_reply_size + 8) {
+		printk(KERN_ERR "ncpfs: tcp: Unexpected reply len %d\n", datalen);
+		return -EIO;
+	}
+	datalen -= 8;
+	result = do_tcp_rcv(server, reply_buf, datalen);
+	if (result)
+		return result;
+	if (reply_buf->type != NCP_REPLY) {
+		DDPRINTK("ncpfs: tcp: Unexpected NCP type %02X\n", reply_buf->type);
+		goto rstrcv;
+	}
+	if (request.type == NCP_ALLOC_SLOT_REQUEST)
+		return datalen;
+	if (reply_buf->sequence != request.sequence) {
+		printk(KERN_ERR "ncpfs: tcp: Bad sequence number\n");
+		return -EIO;
+	}
+	if ((reply_buf->conn_low != request.conn_low) ||
+	    (reply_buf->conn_high != request.conn_high)) {
+		printk(KERN_ERR "ncpfs: tcp: Connection number mismatch\n");
+		return -EIO;
+	}
+	return datalen;
+}
+
+/*
+ * We need the server to be locked here, so check!
+ */
+
+static int ncp_do_request(struct ncp_server *server, int size,
+		void* reply, int max_reply_size)
+{
+	struct file *file;
+	struct socket *sock;
+	int result;
+
+	if (server->lock == 0) {
+		printk(KERN_ERR "ncpfs: Server not locked!\n");
+		return -EIO;
+	}
+	if (!ncp_conn_valid(server)) {
+		return -EIO;
+	}
+#ifdef CONFIG_NCPFS_PACKET_SIGNING
+	if (server->sign_active)
+	{
+		sign_packet(server, &size);
+	}
+#endif /* CONFIG_NCPFS_PACKET_SIGNING */
+	file = server->ncp_filp;
+	sock = &file->f_dentry->d_inode->u.socket_i;
+	/* N.B. this isn't needed ... check socket type? */
+	if (!sock) {
+		printk(KERN_ERR "ncp_rpc_call: socki_lookup failed\n");
+		result = -EBADF;
+	} else {
+		mm_segment_t fs;
+		sigset_t old_set;
+		unsigned long mask, flags;
+
+		spin_lock_irqsave(&current->sigmask_lock, flags);
+		old_set = current->blocked;
+		if (current->flags & PF_EXITING)
+			mask = 0;
+		else
+			mask = sigmask(SIGKILL);
+		if (server->m.flags & NCP_MOUNT_INTR) {
+			/* FIXME: This doesn't seem right at all.  So, like,
+			   we can't handle SIGINT and get whatever to stop?
+			   What if we've blocked it ourselves?  What about
+			   alarms?  Why, in fact, are we mucking with the
+			   sigmask at all? -- r~ */
+			if (current->sig->action[SIGINT - 1].sa.sa_handler == SIG_DFL)
+				mask |= sigmask(SIGINT);
+			if (current->sig->action[SIGQUIT - 1].sa.sa_handler == SIG_DFL)
+				mask |= sigmask(SIGQUIT);
+		}
+		siginitsetinv(&current->blocked, mask);
+		recalc_sigpending(current);
+		spin_unlock_irqrestore(&current->sigmask_lock, flags);
+		
+		fs = get_fs();
+		set_fs(get_ds());
+
+		if (sock->type == SOCK_STREAM)
+			result = do_ncp_tcp_rpc_call(server, size, reply, max_reply_size);
+		else
+			result = do_ncp_rpc_call(server, size, reply, max_reply_size);
+
+		set_fs(fs);
+
+		spin_lock_irqsave(&current->sigmask_lock, flags);
+		current->blocked = old_set;
+		recalc_sigpending(current);
+		spin_unlock_irqrestore(&current->sigmask_lock, flags);
+	}
+
+	DDPRINTK("do_ncp_rpc_call returned %d\n", result);
+
+	if (result < 0) {
+		/* There was a problem with I/O, so the connections is
+		 * no longer usable. */
+		ncp_invalidate_conn(server);
+	}
+	return result;
+}
+
+/* ncp_do_request assures that at least a complete reply header is
+ * received. It assumes that server->current_size contains the ncp
+ * request size
+ */
+int ncp_request2(struct ncp_server *server, int function, 
+		void* rpl, int size)
+{
+	struct ncp_request_header *h;
+	struct ncp_reply_header* reply = rpl;
+	int request_size = server->current_size
+			 - sizeof(struct ncp_request_header);
+	int result;
+
+	h = (struct ncp_request_header *) (server->packet);
+	if (server->has_subfunction != 0) {
+		*(__u16 *) & (h->data[0]) = htons(request_size - 2);
+	}
+	h->type = NCP_REQUEST;
+
+	server->sequence += 1;
+	h->sequence = server->sequence;
+	h->conn_low = (server->connection) & 0xff;
+	h->conn_high = ((server->connection) & 0xff00) >> 8;
+	/*
+	 * The server shouldn't know or care what task is making a
+	 * request, so we always use the same task number.
+	 */
+	h->task = 2; /* (current->pid) & 0xff; */
+	h->function = function;
+
+	result = ncp_do_request(server, request_size + sizeof(*h), reply, size);
+	if (result < 0) {
+		DPRINTK("ncp_request_error: %d\n", result);
+		goto out;
+	}
+	server->completion = reply->completion_code;
+	server->conn_status = reply->connection_state;
+	server->reply_size = result;
+	server->ncp_reply_size = result - sizeof(struct ncp_reply_header);
+
+	result = reply->completion_code;
+
+	if (result != 0)
+		PPRINTK("ncp_request: completion code=%x\n", result);
+out:
+	return result;
+}
+
+int ncp_connect(struct ncp_server *server)
+{
+	struct ncp_request_header *h;
+	int result;
+
+	h = (struct ncp_request_header *) (server->packet);
+	h->type = NCP_ALLOC_SLOT_REQUEST;
+
+	server->sequence = 0;
+	h->sequence	= server->sequence;
+	h->conn_low	= 0xff;
+	h->conn_high	= 0xff;
+	h->task		= 2; /* see above */
+	h->function	= 0;
+
+	result = ncp_do_request(server, sizeof(*h), server->packet, server->packet_size);
+	if (result < 0)
+		goto out;
+	server->sequence = 0;
+	server->connection = h->conn_low + (h->conn_high * 256);
+	result = 0;
+out:
+	return result;
+}
+
+int ncp_disconnect(struct ncp_server *server)
+{
+	struct ncp_request_header *h;
+
+	h = (struct ncp_request_header *) (server->packet);
+	h->type = NCP_DEALLOC_SLOT_REQUEST;
+
+	server->sequence += 1;
+	h->sequence	= server->sequence;
+	h->conn_low	= (server->connection) & 0xff;
+	h->conn_high	= ((server->connection) & 0xff00) >> 8;
+	h->task		= 2; /* see above */
+	h->function	= 0;
+
+	return ncp_do_request(server, sizeof(*h), server->packet, server->packet_size);
+}
+
+void ncp_lock_server(struct ncp_server *server)
+{
+	down(&server->sem);
+	if (server->lock)
+		printk(KERN_WARNING "ncp_lock_server: was locked!\n");
+	server->lock = 1;
+}
+
+void ncp_unlock_server(struct ncp_server *server)
+{
+	if (!server->lock) {
+		printk(KERN_WARNING "ncp_unlock_server: was not locked!\n");
+		return;
+	}
+	server->lock = 0;
+	up(&server->sem);
+}
diff --git a/fs/ncpfs/symlink.c b/fs/ncpfs/symlink.c
new file mode 100644
index 00000000000000..52f095848c3c87
--- /dev/null
+++ b/fs/ncpfs/symlink.c
@@ -0,0 +1,163 @@
+/*
+ *  linux/fs/ncpfs/symlink.c
+ *
+ *  Code for allowing symbolic links on NCPFS (i.e. NetWare)
+ *  Symbolic links are not supported on native NetWare, so we use an
+ *  infrequently-used flag (Sh) and store a two-word magic header in
+ *  the file to make sure we don't accidentally use a non-link file
+ *  as a link.
+ *
+ *  from linux/fs/ext2/symlink.c
+ *
+ *  Copyright (C) 1998-99, Frank A. Vorstenbosch
+ *
+ *  ncpfs symlink handling code
+ *  NLS support (c) 1999 Petr Vandrovec
+ *
+ */
+
+#include <linux/config.h>
+
+#ifdef CONFIG_NCPFS_EXTRAS
+
+#include <asm/uaccess.h>
+#include <asm/segment.h>
+
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/ncp_fs.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/stat.h>
+#include "ncplib_kernel.h"
+
+
+/* these magic numbers must appear in the symlink file -- this makes it a bit
+   more resilient against the magic attributes being set on random files. */
+
+#define NCP_SYMLINK_MAGIC0	le32_to_cpu(0x6c6d7973)     /* "symlnk->" */
+#define NCP_SYMLINK_MAGIC1	le32_to_cpu(0x3e2d6b6e)
+
+int ncp_create_new(struct inode *dir, struct dentry *dentry,
+                          int mode,int attributes);
+
+/* ----- read a symbolic link ------------------------------------------ */
+
+static int ncp_symlink_readpage(struct file *file, struct page *page)
+{
+	struct inode *inode = page->mapping->host;
+	int error, length, len, cnt;
+	char *link;
+	char *buf = kmap(page);
+
+	error = -ENOMEM;
+	for (cnt = 0; (link=(char *)kmalloc(NCP_MAX_SYMLINK_SIZE, GFP_NFS))==NULL; cnt++) {
+		if (cnt > 10)
+			goto fail;
+		schedule();
+	}
+
+	if (ncp_make_open(inode,O_RDONLY))
+		goto failEIO;
+
+	error=ncp_read_kernel(NCP_SERVER(inode),NCP_FINFO(inode)->file_handle,
+                         0,NCP_MAX_SYMLINK_SIZE,link,&length);
+
+	ncp_inode_close(inode);
+	/* Close file handle if no other users... */
+	ncp_make_closed(inode);
+	if (error)
+		goto failEIO;
+
+	if (length<NCP_MIN_SYMLINK_SIZE || 
+	    ((__u32 *)link)[0]!=NCP_SYMLINK_MAGIC0 ||
+	    ((__u32 *)link)[1]!=NCP_SYMLINK_MAGIC1)
+	    	goto failEIO;
+
+	len = NCP_MAX_SYMLINK_SIZE;
+	error = ncp_vol2io(NCP_SERVER(inode), buf, &len, link+8, length-8, 0);
+	kfree(link);
+	if (error)
+		goto fail;
+	SetPageUptodate(page);
+	kunmap(page);
+	UnlockPage(page);
+	return 0;
+
+failEIO:
+	error = -EIO;
+	kfree(link);
+fail:
+	SetPageError(page);
+	kunmap(page);
+	UnlockPage(page);
+	return error;
+}
+
+/*
+ * symlinks can't do much...
+ */
+struct address_space_operations ncp_symlink_aops = {
+	readpage:	ncp_symlink_readpage,
+};
+	
+/* ----- create a new symbolic link -------------------------------------- */
+ 
+int ncp_symlink(struct inode *dir, struct dentry *dentry, const char *symname) {
+	struct inode *inode;
+	char *link;
+	int length, err, i;
+
+#ifdef DEBUG
+	PRINTK("ncp_symlink(dir=%p,dentry=%p,symname=%s)\n",dir,dentry,symname);
+#endif
+
+	if (!(NCP_SERVER(dir)->m.flags & NCP_MOUNT_SYMLINKS))
+		return -EPERM;	/* EPERM is returned by VFS if symlink procedure does not exist */
+
+	if ((length=strlen(symname))>NCP_MAX_SYMLINK_SIZE-8)
+		return -EINVAL;
+
+	if ((link=(char *)kmalloc(length+9,GFP_NFS))==NULL)
+		return -ENOMEM;
+
+	err = -EIO;
+	if (ncp_create_new(dir,dentry,0,aSHARED|aHIDDEN))
+		goto failfree;
+
+	inode=dentry->d_inode;
+
+	if (ncp_make_open(inode, O_WRONLY))
+		goto failfree;
+
+	((__u32 *)link)[0]=NCP_SYMLINK_MAGIC0;
+	((__u32 *)link)[1]=NCP_SYMLINK_MAGIC1;
+
+	/* map to/from server charset, do not touch upper/lower case as
+	   symlink can point out of ncp filesystem */
+	length += 1;
+	err = ncp_io2vol(NCP_SERVER(inode),link+8,&length,symname,length-1,0);
+	if (err)
+		goto fail;
+
+	if(ncp_write_kernel(NCP_SERVER(inode), NCP_FINFO(inode)->file_handle, 
+	    		    0, length+8, link, &i) || i!=length+8) {
+		err = -EIO;
+		goto fail;
+	}
+
+	ncp_inode_close(inode);
+	ncp_make_closed(inode);
+	kfree(link);
+	return 0;
+
+fail:
+	ncp_inode_close(inode);
+	ncp_make_closed(inode);
+failfree:
+	kfree(link);
+	return err;	
+}
+#endif
+
+/* ----- EOF ----- */
diff --git a/fs/nfs/Makefile b/fs/nfs/Makefile
new file mode 100644
index 00000000000000..2147af7f1742ce
--- /dev/null
+++ b/fs/nfs/Makefile
@@ -0,0 +1,21 @@
+#
+# Makefile for the Linux nfs filesystem routines.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile.
+
+O_TARGET := nfs.o
+
+obj-y    := dir.o file.o flushd.o inode.o nfs2xdr.o pagelist.o proc.o \
+	    read.o symlink.o unlink.o write.o
+
+obj-$(CONFIG_ROOT_NFS) += nfsroot.o mount_clnt.o      
+obj-$(CONFIG_NFS_V3) += nfs3proc.o nfs3xdr.o
+obj-$(CONFIG_NFS_DIRECTIO) += direct.o
+
+obj-m   := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
new file mode 100644
index 00000000000000..48ab5af19639cb
--- /dev/null
+++ b/fs/nfs/dir.c
@@ -0,0 +1,1126 @@
+/*
+ *  linux/fs/nfs/dir.c
+ *
+ *  Copyright (C) 1992  Rick Sladkey
+ *
+ *  nfs directory handling functions
+ *
+ * 10 Apr 1996	Added silly rename for unlink	--okir
+ * 28 Sep 1996	Improved directory cache --okir
+ * 23 Aug 1997  Claus Heine claus@momo.math.rwth-aachen.de 
+ *              Re-implemented silly rename for unlink, newly implemented
+ *              silly rename for nfs_rename() following the suggestions
+ *              of Olaf Kirch (okir) found in this file.
+ *              Following Linus comments on my original hack, this version
+ *              depends only on the dcache stuff and doesn't touch the inode
+ *              layer (iput() and friends).
+ *  6 Jun 1999	Cache readdir lookups in the page cache. -DaveM
+ */
+
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/stat.h>
+#include <linux/fcntl.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/mm.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/nfs_fs.h>
+#include <linux/nfs_mount.h>
+#include <linux/pagemap.h>
+#include <linux/smp_lock.h>
+
+#define NFS_PARANOIA 1
+/* #define NFS_DEBUG_VERBOSE 1 */
+
+static int nfs_readdir(struct file *, void *, filldir_t);
+static struct dentry *nfs_lookup(struct inode *, struct dentry *);
+static int nfs_create(struct inode *, struct dentry *, int);
+static int nfs_mkdir(struct inode *, struct dentry *, int);
+static int nfs_rmdir(struct inode *, struct dentry *);
+static int nfs_unlink(struct inode *, struct dentry *);
+static int nfs_symlink(struct inode *, struct dentry *, const char *);
+static int nfs_link(struct dentry *, struct inode *, struct dentry *);
+static int nfs_mknod(struct inode *, struct dentry *, int, int);
+static int nfs_rename(struct inode *, struct dentry *,
+		      struct inode *, struct dentry *);
+static int nfs_fsync_dir(struct file *, struct dentry *, int);
+
+struct file_operations nfs_dir_operations = {
+	read:		generic_read_dir,
+	readdir:	nfs_readdir,
+	open:		nfs_open,
+	release:	nfs_release,
+	fsync:		nfs_fsync_dir
+};
+
+struct inode_operations nfs_dir_inode_operations = {
+	create:		nfs_create,
+	lookup:		nfs_lookup,
+	link:		nfs_link,
+	unlink:		nfs_unlink,
+	symlink:	nfs_symlink,
+	mkdir:		nfs_mkdir,
+	rmdir:		nfs_rmdir,
+	mknod:		nfs_mknod,
+	rename:		nfs_rename,
+	permission:	nfs_permission,
+	revalidate:	nfs_revalidate,
+	setattr:	nfs_notify_change,
+};
+
+typedef u32 * (*decode_dirent_t)(u32 *, struct nfs_entry *, int);
+typedef struct {
+	struct file	*file;
+	struct page	*page;
+	unsigned long	page_index;
+	u32		*ptr;
+	u64		target;
+	struct nfs_entry *entry;
+	decode_dirent_t	decode;
+	int		plus;
+	int		error;
+} nfs_readdir_descriptor_t;
+
+/* Now we cache directories properly, by stuffing the dirent
+ * data directly in the page cache.
+ *
+ * Inode invalidation due to refresh etc. takes care of
+ * _everything_, no sloppy entry flushing logic, no extraneous
+ * copying, network direct to page cache, the way it was meant
+ * to be.
+ *
+ * NOTE: Dirent information verification is done always by the
+ *	 page-in of the RPC reply, nowhere else, this simplies
+ *	 things substantially.
+ */
+static
+int nfs_readdir_filler(nfs_readdir_descriptor_t *desc, struct page *page)
+{
+	struct file	*file = desc->file;
+	struct inode	*inode = file->f_dentry->d_inode;
+	struct rpc_cred	*cred = nfs_file_cred(file);
+	int		error;
+
+	dfprintk(VFS, "NFS: nfs_readdir_filler() reading cookie %Lu into page %lu.\n", (long long)desc->entry->cookie, page->index);
+
+ again:
+	error = NFS_PROTO(inode)->readdir(inode, cred, desc->entry->cookie, page,
+					  NFS_SERVER(inode)->dtsize, desc->plus);
+	/* We requested READDIRPLUS, but the server doesn't grok it */
+	if (desc->plus && error == -ENOTSUPP) {
+		NFS_FLAGS(inode) &= ~NFS_INO_ADVISE_RDPLUS;
+		desc->plus = 0;
+		goto again;
+	}
+	if (error < 0)
+		goto error;
+	SetPageUptodate(page);
+	/* Ensure consistent page alignment of the data.
+	 * Note: assumes we have exclusive access to this mapping either
+	 *	 throught inode->i_sem or some other mechanism.
+	 */
+	if (page->index == 0)
+		invalidate_inode_pages(inode);
+	UnlockPage(page);
+	return 0;
+ error:
+	SetPageError(page);
+	UnlockPage(page);
+	invalidate_inode_pages(inode);
+	desc->error = error;
+	return -EIO;
+}
+
+static inline
+int dir_decode(nfs_readdir_descriptor_t *desc)
+{
+	u32	*p = desc->ptr;
+	p = desc->decode(p, desc->entry, desc->plus);
+	if (IS_ERR(p))
+		return PTR_ERR(p);
+	desc->ptr = p;
+	return 0;
+}
+
+static inline
+void dir_page_release(nfs_readdir_descriptor_t *desc)
+{
+	kunmap(desc->page);
+	page_cache_release(desc->page);
+	desc->page = NULL;
+	desc->ptr = NULL;
+}
+
+/*
+ * Given a pointer to a buffer that has already been filled by a call
+ * to readdir, find the next entry.
+ *
+ * If the end of the buffer has been reached, return -EAGAIN, if not,
+ * return the offset within the buffer of the next entry to be
+ * read.
+ */
+static inline
+int find_dirent(nfs_readdir_descriptor_t *desc, struct page *page)
+{
+	struct nfs_entry *entry = desc->entry;
+	int		loop_count = 0,
+			status;
+
+	while((status = dir_decode(desc)) == 0) {
+		dfprintk(VFS, "NFS: found cookie %Lu\n", (long long)entry->cookie);
+		if (entry->prev_cookie == desc->target)
+			break;
+		if (loop_count++ > 200) {
+			loop_count = 0;
+			schedule();
+		}
+	}
+	dfprintk(VFS, "NFS: find_dirent() returns %d\n", status);
+	return status;
+}
+
+/*
+ * Find the given page, and call find_dirent() in order to try to
+ * return the next entry.
+ */
+static inline
+int find_dirent_page(nfs_readdir_descriptor_t *desc)
+{
+	struct inode	*inode = desc->file->f_dentry->d_inode;
+	struct page	*page;
+	int		status;
+
+	dfprintk(VFS, "NFS: find_dirent_page() searching directory page %ld\n", desc->page_index);
+
+	desc->plus = NFS_USE_READDIRPLUS(inode);
+	page = read_cache_page(&inode->i_data, desc->page_index,
+			       (filler_t *)nfs_readdir_filler, desc);
+	if (IS_ERR(page)) {
+		status = PTR_ERR(page);
+		goto out;
+	}
+	if (!Page_Uptodate(page))
+		goto read_error;
+
+	/* NOTE: Someone else may have changed the READDIRPLUS flag */
+	desc->page = page;
+	desc->ptr = kmap(page);
+	status = find_dirent(desc, page);
+	if (status < 0)
+		dir_page_release(desc);
+ out:
+	dfprintk(VFS, "NFS: find_dirent_page() returns %d\n", status);
+	return status;
+ read_error:
+	page_cache_release(page);
+	return -EIO;
+}
+
+/*
+ * Recurse through the page cache pages, and return a
+ * filled nfs_entry structure of the next directory entry if possible.
+ *
+ * The target for the search is 'desc->target'.
+ */
+static inline
+int readdir_search_pagecache(nfs_readdir_descriptor_t *desc)
+{
+	int		loop_count = 0;
+	int		res;
+
+	dfprintk(VFS, "NFS: readdir_search_pagecache() searching for cookie %Lu\n", (long long)desc->target);
+	for (;;) {
+		res = find_dirent_page(desc);
+		if (res != -EAGAIN)
+			break;
+		/* Align to beginning of next page */
+		desc->page_index ++;
+		if (loop_count++ > 200) {
+			loop_count = 0;
+			schedule();
+		}
+	}
+	dfprintk(VFS, "NFS: readdir_search_pagecache() returned %d\n", res);
+	return res;
+}
+
+/*
+ * Once we've found the start of the dirent within a page: fill 'er up...
+ */
+static 
+int nfs_do_filldir(nfs_readdir_descriptor_t *desc, void *dirent,
+		   filldir_t filldir)
+{
+	struct file	*file = desc->file;
+	struct nfs_entry *entry = desc->entry;
+	unsigned long	fileid;
+	int		loop_count = 0,
+			res;
+
+	dfprintk(VFS, "NFS: nfs_do_filldir() filling starting @ cookie %Lu\n", (long long)desc->target);
+
+	for(;;) {
+		/* Note: entry->prev_cookie contains the cookie for
+		 *	 retrieving the current dirent on the server */
+		fileid = nfs_fileid_to_ino_t(entry->ino);
+		res = filldir(dirent, entry->name, entry->len, 
+			      entry->prev_cookie, fileid, DT_UNKNOWN);
+		if (res < 0)
+			break;
+		file->f_pos = desc->target = entry->cookie;
+		if (dir_decode(desc) != 0) {
+			desc->page_index ++;
+			break;
+		}
+		if (loop_count++ > 200) {
+			loop_count = 0;
+			schedule();
+		}
+	}
+	dir_page_release(desc);
+
+	dfprintk(VFS, "NFS: nfs_do_filldir() filling ended @ cookie %Lu; returning = %d\n", (long long)desc->target, res);
+	return res;
+}
+
+/*
+ * If we cannot find a cookie in our cache, we suspect that this is
+ * because it points to a deleted file, so we ask the server to return
+ * whatever it thinks is the next entry. We then feed this to filldir.
+ * If all goes well, we should then be able to find our way round the
+ * cache on the next call to readdir_search_pagecache();
+ *
+ * NOTE: we cannot add the anonymous page to the pagecache because
+ *	 the data it contains might not be page aligned. Besides,
+ *	 we should already have a complete representation of the
+ *	 directory in the page cache by the time we get here.
+ */
+static inline
+int uncached_readdir(nfs_readdir_descriptor_t *desc, void *dirent,
+		     filldir_t filldir)
+{
+	struct file	*file = desc->file;
+	struct inode	*inode = file->f_dentry->d_inode;
+	struct rpc_cred	*cred = nfs_file_cred(file);
+	struct page	*page = NULL;
+	int		status;
+
+	dfprintk(VFS, "NFS: uncached_readdir() searching for cookie %Lu\n", (long long)desc->target);
+
+	page = alloc_page(GFP_HIGHUSER);
+	if (!page) {
+		status = -ENOMEM;
+		goto out;
+	}
+	desc->error = NFS_PROTO(inode)->readdir(inode, cred, desc->target,
+						page,
+						NFS_SERVER(inode)->dtsize,
+						desc->plus);
+	desc->page = page;
+	desc->ptr = kmap(page);
+	if (desc->error >= 0) {
+		if ((status = dir_decode(desc)) == 0)
+			desc->entry->prev_cookie = desc->target;
+	} else
+		status = -EIO;
+	if (status < 0)
+		goto out_release;
+
+	status = nfs_do_filldir(desc, dirent, filldir);
+
+	/* Reset read descriptor so it searches the page cache from
+	 * the start upon the next call to readdir_search_pagecache() */
+	desc->page_index = 0;
+	memset(desc->entry, 0, sizeof(*desc->entry));
+ out:
+	dfprintk(VFS, "NFS: uncached_readdir() returns %d\n", status);
+	return status;
+ out_release:
+	dir_page_release(desc);
+	goto out;
+}
+
+/* The file offset position is now represented as a true offset into the
+ * page cache as is the case in most of the other filesystems.
+ */
+static int nfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
+{
+	struct dentry	*dentry = filp->f_dentry;
+	struct inode	*inode = dentry->d_inode;
+	nfs_readdir_descriptor_t my_desc,
+			*desc = &my_desc;
+	struct nfs_entry my_entry;
+	long		res;
+
+	res = nfs_revalidate(dentry);
+	if (res < 0)
+		return res;
+
+	/*
+	 * filp->f_pos points to the file offset in the page cache.
+	 * but if the cache has meanwhile been zapped, we need to
+	 * read from the last dirent to revalidate f_pos
+	 * itself.
+	 */
+	memset(desc, 0, sizeof(*desc));
+	memset(&my_entry, 0, sizeof(my_entry));
+
+	desc->file = filp;
+	desc->target = filp->f_pos;
+	desc->entry = &my_entry;
+	desc->decode = NFS_PROTO(inode)->decode_dirent;
+
+	while(!desc->entry->eof) {
+		res = readdir_search_pagecache(desc);
+		if (res == -EBADCOOKIE) {
+			/* This means either end of directory */
+			if (desc->entry->cookie != desc->target) {
+				/* Or that the server has 'lost' a cookie */
+				res = uncached_readdir(desc, dirent, filldir);
+				if (res >= 0)
+					continue;
+			}
+			res = 0;
+			break;
+		} else if (res < 0)
+			break;
+
+		res = nfs_do_filldir(desc, dirent, filldir);
+		if (res < 0) {
+			res = 0;
+			break;
+		}
+	}
+	if (desc->error < 0)
+		return desc->error;
+	if (res < 0)
+		return res;
+	return 0;
+}
+
+/*
+ * All directory operations under NFS are synchronous, so fsync()
+ * is a dummy operation.
+ */
+int nfs_fsync_dir(struct file *filp, struct dentry *dentry, int datasync)
+{
+	return 0;
+}
+
+/*
+ * A check for whether or not the parent directory has changed.
+ * In the case it has, we assume that the dentries are untrustworthy
+ * and may need to be looked up again.
+ */
+static inline
+int nfs_check_verifier(struct inode *dir, struct dentry *dentry)
+{
+	if (IS_ROOT(dentry))
+		return 1;
+	if (nfs_revalidate_inode(NFS_SERVER(dir), dir))
+		return 0;
+	return time_after(dentry->d_time, NFS_MTIME_UPDATE(dir));
+}
+
+/*
+ * Whenever an NFS operation succeeds, we know that the dentry
+ * is valid, so we update the revalidation timestamp.
+ */
+static inline void nfs_renew_times(struct dentry * dentry)
+{
+	dentry->d_time = jiffies;
+}
+
+static inline
+int nfs_lookup_verify_inode(struct inode *inode, int flags)
+{
+	struct nfs_server *server = NFS_SERVER(inode);
+	/*
+	 * If we're interested in close-to-open cache consistency,
+	 * then we revalidate the inode upon lookup.
+	 */
+	if (!(server->flags & NFS_MOUNT_NOCTO) && !(flags & LOOKUP_CONTINUE))
+		NFS_CACHEINV(inode);
+	return nfs_revalidate_inode(server, inode);
+}
+
+/*
+ * We judge how long we want to trust negative
+ * dentries by looking at the parent inode mtime.
+ *
+ * If parent mtime has changed, we revalidate, else we wait for a
+ * period corresponding to the parent's attribute cache timeout value.
+ */
+static inline int nfs_neg_need_reval(struct inode *dir, struct dentry *dentry)
+{
+	if (!nfs_check_verifier(dir, dentry))
+		return 1;
+	return time_after(jiffies, dentry->d_time + NFS_ATTRTIMEO(dir));
+}
+
+/*
+ * This is called every time the dcache has a lookup hit,
+ * and we should check whether we can really trust that
+ * lookup.
+ *
+ * NOTE! The hit can be a negative hit too, don't assume
+ * we have an inode!
+ *
+ * If the parent directory is seen to have changed, we throw out the
+ * cached dentry and do a new lookup.
+ */
+static int nfs_lookup_revalidate(struct dentry * dentry, int flags)
+{
+	struct inode *dir;
+	struct inode *inode;
+	int error;
+	struct nfs_fh fhandle;
+	struct nfs_fattr fattr;
+
+	lock_kernel();
+	dir = dentry->d_parent->d_inode;
+	inode = dentry->d_inode;
+
+	if (!inode) {
+		if (nfs_neg_need_reval(dir, dentry))
+			goto out_bad;
+		goto out_valid;
+	}
+
+	if (is_bad_inode(inode)) {
+		dfprintk(VFS, "nfs_lookup_validate: %s/%s has dud inode\n",
+			dentry->d_parent->d_name.name, dentry->d_name.name);
+		goto out_bad;
+	}
+
+	/* Force a full look up iff the parent directory has changed */
+	if (nfs_check_verifier(dir, dentry)) {
+		if (nfs_lookup_verify_inode(inode, flags))
+			goto out_bad;
+		goto out_valid;
+	}
+
+	if (NFS_STALE(inode))
+		goto out_bad;
+
+	error = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, &fhandle, &fattr);
+	if (error)
+		goto out_bad;
+	if (memcmp(NFS_FH(inode), &fhandle, sizeof(struct nfs_fh))!= 0)
+		goto out_bad;
+	if ((error = nfs_refresh_inode(inode, &fattr)) != 0)
+		goto out_bad;
+
+	nfs_renew_times(dentry);
+ out_valid:
+	unlock_kernel();
+	return 1;
+ out_bad:
+	NFS_CACHEINV(dir);
+	if (inode && S_ISDIR(inode->i_mode)) {
+		/* Purge readdir caches. */
+		nfs_zap_caches(inode);
+		/* If we have submounts, don't unhash ! */
+		if (have_submounts(dentry))
+			goto out_valid;
+		shrink_dcache_parent(dentry);
+	}
+	d_drop(dentry);
+	unlock_kernel();
+	return 0;
+}
+
+/*
+ * This is called from dput() when d_count is going to 0.
+ */
+static int nfs_dentry_delete(struct dentry *dentry)
+{
+	dfprintk(VFS, "NFS: dentry_delete(%s/%s, %x)\n",
+		dentry->d_parent->d_name.name, dentry->d_name.name,
+		dentry->d_flags);
+
+	if (dentry->d_flags & DCACHE_NFSFS_RENAMED) {
+		/* Unhash it, so that ->d_iput() would be called */
+		return 1;
+	}
+	if (!(dentry->d_sb->s_flags & MS_ACTIVE)) {
+		/* Unhash it, so that ancestors of killed async unlink
+		 * files will be cleaned up during umount */
+		return 1;
+	}
+	return 0;
+
+}
+
+/*
+ * Called when the dentry loses inode.
+ * We use it to clean up silly-renamed files.
+ */
+static void nfs_dentry_iput(struct dentry *dentry, struct inode *inode)
+{
+	if (dentry->d_flags & DCACHE_NFSFS_RENAMED) {
+		lock_kernel();
+		nfs_complete_unlink(dentry);
+		unlock_kernel();
+	}
+	if (is_bad_inode(inode))
+		force_delete(inode);
+	iput(inode);
+}
+
+struct dentry_operations nfs_dentry_operations = {
+	d_revalidate:	nfs_lookup_revalidate,
+	d_delete:	nfs_dentry_delete,
+	d_iput:		nfs_dentry_iput,
+};
+
+static struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry)
+{
+	struct inode *inode;
+	int error;
+	struct nfs_fh fhandle;
+	struct nfs_fattr fattr;
+
+	dfprintk(VFS, "NFS: lookup(%s/%s)\n",
+		dentry->d_parent->d_name.name, dentry->d_name.name);
+
+	error = -ENAMETOOLONG;
+	if (dentry->d_name.len > NFS_SERVER(dir)->namelen)
+		goto out;
+
+	error = -ENOMEM;
+	dentry->d_op = &nfs_dentry_operations;
+
+	error = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, &fhandle, &fattr);
+	inode = NULL;
+	if (error == -ENOENT)
+		goto no_entry;
+	if (!error) {
+		error = -EACCES;
+		inode = nfs_fhget(dentry, &fhandle, &fattr);
+		if (inode) {
+	    no_entry:
+			d_add(dentry, inode);
+			error = 0;
+		}
+		nfs_renew_times(dentry);
+	}
+out:
+	return ERR_PTR(error);
+}
+
+/*
+ * Code common to create, mkdir, and mknod.
+ */
+static int nfs_instantiate(struct dentry *dentry, struct nfs_fh *fhandle,
+				struct nfs_fattr *fattr)
+{
+	struct inode *inode;
+	int error = -EACCES;
+
+	if (fhandle->size == 0 || !(fattr->valid & NFS_ATTR_FATTR)) {
+		struct inode *dir = dentry->d_parent->d_inode;
+		error = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, fhandle, fattr);
+		if (error)
+			goto out_err;
+	}
+	inode = nfs_fhget(dentry, fhandle, fattr);
+	if (inode) {
+		d_instantiate(dentry, inode);
+		nfs_renew_times(dentry);
+		error = 0;
+	}
+	return error;
+out_err:
+	d_drop(dentry);
+	return error;
+}
+
+/*
+ * Following a failed create operation, we drop the dentry rather
+ * than retain a negative dentry. This avoids a problem in the event
+ * that the operation succeeded on the server, but an error in the
+ * reply path made it appear to have failed.
+ */
+static int nfs_create(struct inode *dir, struct dentry *dentry, int mode)
+{
+	struct iattr attr;
+	struct nfs_fattr fattr;
+	struct nfs_fh fhandle;
+	int error;
+
+	dfprintk(VFS, "NFS: create(%x/%ld, %s\n",
+		dir->i_dev, dir->i_ino, dentry->d_name.name);
+
+	attr.ia_mode = mode;
+	attr.ia_valid = ATTR_MODE;
+
+	/*
+	 * The 0 argument passed into the create function should one day
+	 * contain the O_EXCL flag if requested. This allows NFSv3 to
+	 * select the appropriate create strategy. Currently open_namei
+	 * does not pass the create flags.
+	 */
+	nfs_zap_caches(dir);
+	error = NFS_PROTO(dir)->create(dir, &dentry->d_name,
+					 &attr, 0, &fhandle, &fattr);
+	if (!error)
+		error = nfs_instantiate(dentry, &fhandle, &fattr);
+	else
+		d_drop(dentry);
+	return error;
+}
+
+/*
+ * See comments for nfs_proc_create regarding failed operations.
+ */
+static int nfs_mknod(struct inode *dir, struct dentry *dentry, int mode, int rdev)
+{
+	struct iattr attr;
+	struct nfs_fattr fattr;
+	struct nfs_fh fhandle;
+	int error;
+
+	dfprintk(VFS, "NFS: mknod(%x/%ld, %s\n",
+		dir->i_dev, dir->i_ino, dentry->d_name.name);
+
+	attr.ia_mode = mode;
+	attr.ia_valid = ATTR_MODE;
+
+	nfs_zap_caches(dir);
+	error = NFS_PROTO(dir)->mknod(dir, &dentry->d_name, &attr, rdev,
+					&fhandle, &fattr);
+	if (!error)
+		error = nfs_instantiate(dentry, &fhandle, &fattr);
+	else
+		d_drop(dentry);
+	return error;
+}
+
+/*
+ * See comments for nfs_proc_create regarding failed operations.
+ */
+static int nfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+{
+	struct iattr attr;
+	struct nfs_fattr fattr;
+	struct nfs_fh fhandle;
+	int error;
+
+	dfprintk(VFS, "NFS: mkdir(%x/%ld, %s\n",
+		dir->i_dev, dir->i_ino, dentry->d_name.name);
+
+	attr.ia_valid = ATTR_MODE;
+	attr.ia_mode = mode | S_IFDIR;
+
+#if 0
+	/*
+	 * Always drop the dentry, we can't always depend on
+	 * the fattr returned by the server (AIX seems to be
+	 * broken). We're better off doing another lookup than
+	 * depending on potentially bogus information.
+	 */
+	d_drop(dentry);
+#endif
+	nfs_zap_caches(dir);
+	error = NFS_PROTO(dir)->mkdir(dir, &dentry->d_name, &attr, &fhandle,
+					&fattr);
+	if (!error)
+		error = nfs_instantiate(dentry, &fhandle, &fattr);
+	else
+		d_drop(dentry);
+	return error;
+}
+
+static int nfs_rmdir(struct inode *dir, struct dentry *dentry)
+{
+	int error;
+
+	dfprintk(VFS, "NFS: rmdir(%x/%ld, %s\n",
+		dir->i_dev, dir->i_ino, dentry->d_name.name);
+
+	nfs_zap_caches(dir);
+	error = NFS_PROTO(dir)->rmdir(dir, &dentry->d_name);
+	if (!error)
+		dentry->d_inode->i_nlink = 0;
+
+	return error;
+}
+
+static int nfs_sillyrename(struct inode *dir, struct dentry *dentry)
+{
+	static unsigned int sillycounter;
+	const int      i_inosize  = sizeof(dir->i_ino)*2;
+	const int      countersize = sizeof(sillycounter)*2;
+	const int      slen       = strlen(".nfs") + i_inosize + countersize;
+	char           silly[slen+1];
+	struct qstr    qsilly;
+	struct dentry *sdentry;
+	int            error = -EIO;
+
+	dfprintk(VFS, "NFS: silly-rename(%s/%s, ct=%d)\n",
+		dentry->d_parent->d_name.name, dentry->d_name.name, 
+		atomic_read(&dentry->d_count));
+
+	if (atomic_read(&dentry->d_count) == 1)
+		goto out;  /* No need to silly rename. */
+
+
+#ifdef NFS_PARANOIA
+if (!dentry->d_inode)
+printk("NFS: silly-renaming %s/%s, negative dentry??\n",
+dentry->d_parent->d_name.name, dentry->d_name.name);
+#endif
+	/*
+	 * We don't allow a dentry to be silly-renamed twice.
+	 */
+	error = -EBUSY;
+	if (dentry->d_flags & DCACHE_NFSFS_RENAMED)
+		goto out;
+
+	sprintf(silly, ".nfs%*.*lx",
+		i_inosize, i_inosize, dentry->d_inode->i_ino);
+
+	sdentry = NULL;
+	do {
+		char *suffix = silly + slen - countersize;
+
+		dput(sdentry);
+		sillycounter++;
+		sprintf(suffix, "%*.*x", countersize, countersize, sillycounter);
+
+		dfprintk(VFS, "trying to rename %s to %s\n",
+			 dentry->d_name.name, silly);
+		
+		sdentry = lookup_one_len(silly, dentry->d_parent, slen);
+		/*
+		 * N.B. Better to return EBUSY here ... it could be
+		 * dangerous to delete the file while it's in use.
+		 */
+		if (IS_ERR(sdentry))
+			goto out;
+	} while(sdentry->d_inode != NULL); /* need negative lookup */
+
+	nfs_zap_caches(dir);
+	qsilly.name = silly;
+	qsilly.len  = strlen(silly);
+	error = NFS_PROTO(dir)->rename(dir, &dentry->d_name, dir, &qsilly);
+	if (!error) {
+		nfs_renew_times(dentry);
+		d_move(dentry, sdentry);
+		error = nfs_async_unlink(dentry);
+ 		/* If we return 0 we don't unlink */
+	}
+	dput(sdentry);
+out:
+	return error;
+}
+
+/*
+ * Remove a file after making sure there are no pending writes,
+ * and after checking that the file has only one user. 
+ *
+ * We invalidate the attribute cache and free the inode prior to the operation
+ * to avoid possible races if the server reuses the inode.
+ */
+static int nfs_safe_remove(struct dentry *dentry)
+{
+	struct inode *dir = dentry->d_parent->d_inode;
+	struct inode *inode = dentry->d_inode;
+	int error = -EBUSY, rehash = 0;
+		
+	dfprintk(VFS, "NFS: safe_remove(%s/%s)\n",
+		dentry->d_parent->d_name.name, dentry->d_name.name);
+
+	/*
+	 * Unhash the dentry while we remove the file ...
+	 */
+	if (!d_unhashed(dentry)) {
+		d_drop(dentry);
+		rehash = 1;
+	}
+	if (atomic_read(&dentry->d_count) > 1) {
+#ifdef NFS_PARANOIA
+		printk("nfs_safe_remove: %s/%s busy, d_count=%d\n",
+			dentry->d_parent->d_name.name, dentry->d_name.name,
+			atomic_read(&dentry->d_count));
+#endif
+		goto out;
+	}
+
+	/* If the dentry was sillyrenamed, we simply call d_delete() */
+	if (dentry->d_flags & DCACHE_NFSFS_RENAMED) {
+		error = 0;
+		goto out_delete;
+	}
+
+	nfs_zap_caches(dir);
+	if (inode)
+		NFS_CACHEINV(inode);
+	error = NFS_PROTO(dir)->remove(dir, &dentry->d_name);
+	if (error < 0)
+		goto out;
+	if (inode)
+		inode->i_nlink--;
+
+ out_delete:
+	/*
+	 * Free the inode
+	 */
+	d_delete(dentry);
+out:
+	if (rehash)
+		d_rehash(dentry);
+	return error;
+}
+
+/*  We do silly rename. In case sillyrename() returns -EBUSY, the inode
+ *  belongs to an active ".nfs..." file and we return -EBUSY.
+ *
+ *  If sillyrename() returns 0, we do nothing, otherwise we unlink.
+ */
+static int nfs_unlink(struct inode *dir, struct dentry *dentry)
+{
+	int error;
+
+	dfprintk(VFS, "NFS: unlink(%x/%ld, %s)\n",
+		dir->i_dev, dir->i_ino, dentry->d_name.name);
+
+	error = nfs_sillyrename(dir, dentry);
+	if (error && error != -EBUSY) {
+		error = nfs_safe_remove(dentry);
+		if (!error) {
+			nfs_renew_times(dentry);
+		}
+	}
+	return error;
+}
+
+static int
+nfs_symlink(struct inode *dir, struct dentry *dentry, const char *symname)
+{
+	struct iattr attr;
+	struct nfs_fattr sym_attr;
+	struct nfs_fh sym_fh;
+	struct qstr qsymname;
+	unsigned int maxlen;
+	int error;
+
+	dfprintk(VFS, "NFS: symlink(%x/%ld, %s, %s)\n",
+		dir->i_dev, dir->i_ino, dentry->d_name.name, symname);
+
+	error = -ENAMETOOLONG;
+	maxlen = (NFS_PROTO(dir)->version==2) ? NFS2_MAXPATHLEN : NFS3_MAXPATHLEN;
+	if (strlen(symname) > maxlen)
+		goto out;
+
+#ifdef NFS_PARANOIA
+if (dentry->d_inode)
+printk("nfs_proc_symlink: %s/%s not negative!\n",
+dentry->d_parent->d_name.name, dentry->d_name.name);
+#endif
+	/*
+	 * Fill in the sattr for the call.
+ 	 * Note: SunOS 4.1.2 crashes if the mode isn't initialized!
+	 */
+	attr.ia_valid = ATTR_MODE;
+	attr.ia_mode = S_IFLNK | S_IRWXUGO;
+
+	qsymname.name = symname;
+	qsymname.len  = strlen(symname);
+
+	nfs_zap_caches(dir);
+	error = NFS_PROTO(dir)->symlink(dir, &dentry->d_name, &qsymname,
+					  &attr, &sym_fh, &sym_attr);
+	if (!error) {
+		error = nfs_instantiate(dentry, &sym_fh, &sym_attr);
+	} else {
+		if (error == -EEXIST)
+			printk("nfs_proc_symlink: %s/%s already exists??\n",
+			       dentry->d_parent->d_name.name, dentry->d_name.name);
+		d_drop(dentry);
+	}
+
+out:
+	return error;
+}
+
+static int 
+nfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
+{
+	struct inode *inode = old_dentry->d_inode;
+	int error;
+
+	dfprintk(VFS, "NFS: link(%s/%s -> %s/%s)\n",
+		old_dentry->d_parent->d_name.name, old_dentry->d_name.name,
+		dentry->d_parent->d_name.name, dentry->d_name.name);
+
+	/*
+	 * Drop the dentry in advance to force a new lookup.
+	 * Since nfs_proc_link doesn't return a file handle,
+	 * we can't use the existing dentry.
+	 */
+	d_drop(dentry);
+	nfs_zap_caches(dir);
+	NFS_CACHEINV(inode);
+	error = NFS_PROTO(dir)->link(inode, dir, &dentry->d_name);
+	return error;
+}
+
+/*
+ * RENAME
+ * FIXME: Some nfsds, like the Linux user space nfsd, may generate a
+ * different file handle for the same inode after a rename (e.g. when
+ * moving to a different directory). A fail-safe method to do so would
+ * be to look up old_dir/old_name, create a link to new_dir/new_name and
+ * rename the old file using the sillyrename stuff. This way, the original
+ * file in old_dir will go away when the last process iput()s the inode.
+ *
+ * FIXED.
+ * 
+ * It actually works quite well. One needs to have the possibility for
+ * at least one ".nfs..." file in each directory the file ever gets
+ * moved or linked to which happens automagically with the new
+ * implementation that only depends on the dcache stuff instead of
+ * using the inode layer
+ *
+ * Unfortunately, things are a little more complicated than indicated
+ * above. For a cross-directory move, we want to make sure we can get
+ * rid of the old inode after the operation.  This means there must be
+ * no pending writes (if it's a file), and the use count must be 1.
+ * If these conditions are met, we can drop the dentries before doing
+ * the rename.
+ */
+static int nfs_rename(struct inode *old_dir, struct dentry *old_dentry,
+		      struct inode *new_dir, struct dentry *new_dentry)
+{
+	struct inode *old_inode = old_dentry->d_inode;
+	struct inode *new_inode = new_dentry->d_inode;
+	struct dentry *dentry = NULL, *rehash = NULL;
+	int error = -EBUSY;
+
+	/*
+	 * To prevent any new references to the target during the rename,
+	 * we unhash the dentry and free the inode in advance.
+	 */
+	if (!d_unhashed(new_dentry)) {
+		d_drop(new_dentry);
+		rehash = new_dentry;
+	}
+
+	dfprintk(VFS, "NFS: rename(%s/%s -> %s/%s, ct=%d)\n",
+		 old_dentry->d_parent->d_name.name, old_dentry->d_name.name,
+		 new_dentry->d_parent->d_name.name, new_dentry->d_name.name,
+		 atomic_read(&new_dentry->d_count));
+
+	/*
+	 * First check whether the target is busy ... we can't
+	 * safely do _any_ rename if the target is in use.
+	 *
+	 * For files, make a copy of the dentry and then do a 
+	 * silly-rename. If the silly-rename succeeds, the
+	 * copied dentry is hashed and becomes the new target.
+	 */
+	if (!new_inode)
+		goto go_ahead;
+	if (S_ISDIR(new_inode->i_mode))
+		goto out;
+	else if (atomic_read(&new_dentry->d_count) > 1) {
+		int err;
+		/* copy the target dentry's name */
+		dentry = d_alloc(new_dentry->d_parent,
+				 &new_dentry->d_name);
+		if (!dentry)
+			goto out;
+
+		/* silly-rename the existing target ... */
+		err = nfs_sillyrename(new_dir, new_dentry);
+		if (!err) {
+			new_dentry = rehash = dentry;
+			new_inode = NULL;
+			/* instantiate the replacement target */
+			d_instantiate(new_dentry, NULL);
+		}
+
+		/* dentry still busy? */
+		if (atomic_read(&new_dentry->d_count) > 1) {
+#ifdef NFS_PARANOIA
+			printk("nfs_rename: target %s/%s busy, d_count=%d\n",
+			       new_dentry->d_parent->d_name.name,
+			       new_dentry->d_name.name,
+			       atomic_read(&new_dentry->d_count));
+#endif
+			goto out;
+		}
+	}
+
+go_ahead:
+	/*
+	 * ... prune child dentries and writebacks if needed.
+	 */
+	if (atomic_read(&old_dentry->d_count) > 1) {
+		nfs_wb_all(old_inode);
+		shrink_dcache_parent(old_dentry);
+	}
+
+	if (new_inode)
+		d_delete(new_dentry);
+
+	nfs_zap_caches(new_dir);
+	nfs_zap_caches(old_dir);
+	NFS_CACHEINV(old_inode);
+	error = NFS_PROTO(old_dir)->rename(old_dir, &old_dentry->d_name,
+					   new_dir, &new_dentry->d_name);
+out:
+	if (rehash)
+		d_rehash(rehash);
+	if (!error && !S_ISDIR(old_inode->i_mode))
+		d_move(old_dentry, new_dentry);
+
+	/* new dentry created? */
+	if (dentry)
+		dput(dentry);
+	return error;
+}
+
+int
+nfs_permission(struct inode *inode, int mask)
+{
+	int			error = vfs_permission(inode, mask);
+
+	if (!NFS_PROTO(inode)->access)
+		goto out;
+
+	if (error == -EROFS)
+		goto out;
+
+	/*
+	 * Trust UNIX mode bits except:
+	 *
+	 * 1) When override capabilities may have been invoked
+	 * 2) When root squashing may be involved
+	 * 3) When ACLs may overturn a negative answer */
+	if (!capable(CAP_DAC_OVERRIDE) && !capable(CAP_DAC_READ_SEARCH)
+	    && (current->fsuid != 0) && (current->fsgid != 0)
+	    && error != -EACCES)
+		goto out;
+
+	error = NFS_PROTO(inode)->access(inode, mask, 0);
+
+	if (error == -EACCES && NFS_CLIENT(inode)->cl_droppriv &&
+	    current->uid != 0 && current->gid != 0 &&
+	    (current->fsuid != current->uid || current->fsgid != current->gid))
+		error = NFS_PROTO(inode)->access(inode, mask, 1);
+
+ out:
+	return error;
+}
+
+/*
+ * Local variables:
+ *  version-control: t
+ *  kept-new-versions: 5
+ * End:
+ */
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
new file mode 100644
index 00000000000000..27aaea43f05525
--- /dev/null
+++ b/fs/nfs/direct.c
@@ -0,0 +1,382 @@
+/*
+ * linux/fs/nfs/direct.c
+ *
+ * High-performance direct I/O for the NFS client
+ *
+ * When an application requests uncached I/O, all read and write requests
+ * are made directly to the server; data stored or fetched via these
+ * requests is not cached in the Linux page cache.  The client does not
+ * correct unaligned requests from applications.  All requested bytes are
+ * held on permanent storage before a direct write system call returns to
+ * an application.  Applications that manage their own data caching, such
+ * as databases, make very good use of direct I/O on local file systems.
+ *
+ * Solaris implements an uncached I/O facility called directio() that
+ * is used for backups and sequential I/O to very large files.  Solaris
+ * also supports uncaching whole NFS partitions with "-o forcedirectio,"
+ * an undocumented mount option.
+ *
+ * Note that I/O to read in executables (e.g. kernel_read) cannot use
+ * direct (kiobuf) reads because there is no vma backing the passed-in
+ * data buffer.
+ *
+ * Designed by Jeff Kimmel, Chuck Lever, and Trond Myklebust.
+ *
+ * Initial implementation:	12/2001 by Chuck Lever <cel@netapp.com>
+ *
+ * TODO:
+ *
+ * 1.  Use concurrent asynchronous network requests rather than
+ *     serialized synchronous network requests for normal (non-sync)
+ *     direct I/O.
+ */
+
+#include <linux/config.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/file.h>
+#include <linux/errno.h>
+#include <linux/nfs_fs.h>
+#include <linux/smp_lock.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/iobuf.h>
+
+#include <asm/system.h>
+#include <asm/uaccess.h>
+
+#define NFSDBG_FACILITY		(NFSDBG_PAGECACHE | NFSDBG_VFS)
+#define VERF_SIZE		(2 * sizeof(__u32))
+
+static inline int
+nfs_direct_read_rpc(struct file *file, struct nfs_readargs *arg)
+{
+	int result;
+	struct inode * inode = file->f_dentry->d_inode;
+	struct nfs_fattr fattr;
+        struct rpc_message msg;
+        struct nfs_readres res = { &fattr, arg->count, 0 };
+
+#ifdef CONFIG_NFS_V3
+	msg.rpc_proc = (NFS_PROTO(inode)->version == 3) ?
+						NFS3PROC_READ : NFSPROC_READ;
+#else
+	msg.rpc_proc = NFSPROC_READ;
+#endif
+	msg.rpc_argp = arg;
+        msg.rpc_resp = &res;
+
+	lock_kernel();
+        msg.rpc_cred = nfs_file_cred(file);
+        fattr.valid = 0;
+        result = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
+	nfs_refresh_inode(inode, &fattr);
+	unlock_kernel();
+
+	return result;
+}
+
+static inline int
+nfs_direct_write_rpc(struct file *file, struct nfs_writeargs *arg,
+	struct nfs_writeverf *verf)
+{
+	int result;
+	struct inode *inode = file->f_dentry->d_inode;
+	struct nfs_fattr fattr;
+        struct rpc_message msg;
+        struct nfs_writeres res = { &fattr, verf, 0 };
+
+#ifdef CONFIG_NFS_V3
+	msg.rpc_proc = (NFS_PROTO(inode)->version == 3) ?
+						NFS3PROC_WRITE : NFSPROC_WRITE;
+#else
+	msg.rpc_proc = NFSPROC_WRITE;
+#endif
+	msg.rpc_argp = arg;
+        msg.rpc_resp = &res;
+
+	lock_kernel();
+	msg.rpc_cred = get_rpccred(nfs_file_cred(file));
+	fattr.valid = 0;
+        result = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
+	nfs_write_attributes(inode, &fattr);
+	put_rpccred(msg.rpc_cred);
+	unlock_kernel();
+
+#ifdef CONFIG_NFS_V3
+	if (NFS_PROTO(inode)->version == 3) {
+		if (result > 0) {
+			if ((arg->stable == NFS_FILE_SYNC) &&
+			    (verf->committed != NFS_FILE_SYNC)) {
+				printk(KERN_ERR
+				"%s: server didn't sync stable write request\n",
+				__FUNCTION__);
+				return -EIO;
+			}
+
+			if (result != arg->count) {
+				printk(KERN_INFO
+					"%s: short write, count=%u, result=%d\n",
+					__FUNCTION__, arg->count, result);
+			}
+		}
+		return result;
+	} else {
+#endif
+        	verf->committed = NFS_FILE_SYNC; /* NFSv2 always syncs data */
+		if (result == 0)
+			return arg->count;
+		return result;
+#ifdef CONFIG_NFS_V3
+	}
+#endif
+}
+
+#ifdef CONFIG_NFS_V3
+static inline int
+nfs_direct_commit_rpc(struct inode *inode, loff_t offset, size_t count,
+	struct nfs_writeverf *verf)
+{
+	int result;
+	struct nfs_fattr fattr;
+	struct nfs_writeargs	arg = { NFS_FH(inode), offset, count, 0, 0,
+					NULL };
+	struct nfs_writeres	res = { &fattr, verf, 0 };
+	struct rpc_message	msg = { NFS3PROC_COMMIT, &arg, &res, NULL };
+
+	fattr.valid = 0;
+
+	lock_kernel();
+	result = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
+	nfs_write_attributes(inode, &fattr);
+	unlock_kernel();
+
+	return result;
+}
+#else
+static inline int
+nfs_direct_commit_rpc(struct inode *inode, loff_t offset, size_t count,
+	struct nfs_writeverf *verf)
+{
+	return 0;
+}
+#endif
+
+/*
+ * Walk through the iobuf and create an iovec for each "rsize" bytes.
+ */
+static int
+nfs_direct_read(struct file *file, struct kiobuf *iobuf, loff_t offset,
+	size_t count)
+{
+	int curpage, total;
+	int result = 0;
+	struct inode *inode = file->f_dentry->d_inode;
+	int rsize = NFS_SERVER(inode)->rsize;
+	struct page *pages[NFS_READ_MAXIOV];
+	struct nfs_readargs args = { NFS_FH(inode), offset, 0, iobuf->offset,
+				     pages };
+
+	total = 0;
+	curpage = 0;
+        while (count) {
+		int len, request;
+		struct page **dest = pages;
+
+                request = count;
+                if (count > rsize)
+                        request = rsize;
+		args.count = request;
+		args.offset = offset;
+		args.pgbase = (iobuf->offset + total) & ~PAGE_MASK;
+		len = PAGE_SIZE - args.pgbase;
+
+		do {
+			struct page *page = iobuf->maplist[curpage];
+
+			if (curpage >= iobuf->nr_pages || !page) {
+				result = -EFAULT;
+				goto out_err;
+			}
+
+			*dest++ = page;
+			/* zero after the first iov */
+			if (request < len)
+				break;
+			request -= len;
+			len = PAGE_SIZE;
+			curpage++;
+		} while (request != 0);
+
+                result = nfs_direct_read_rpc(file, &args);
+
+                if (result < 0)
+                        break;
+
+                total += result;
+                if (result < args.count)   /* NFSv2ism */
+                        break;
+                count -= result;
+                offset += result;
+        };
+out_err:
+	if (!total)
+		return result;
+	return total;
+}
+
+/*
+ * Walk through the iobuf and create an iovec for each "wsize" bytes.
+ * If only one network write is necessary, or if the O_SYNC flag or
+ * 'sync' mount option are present, or if this is a V2 inode, use
+ * FILE_SYNC.  Otherwise, use UNSTABLE and finish with a COMMIT.
+ *
+ * The mechanics of this function are much the same as nfs_direct_read,
+ * with the added complexity of committing unstable writes.
+ */
+static int
+nfs_direct_write(struct file *file, struct kiobuf *iobuf,
+	loff_t offset, size_t count)
+{
+	int curpage, total;
+	int need_commit = 0;
+	int result = 0;
+	loff_t save_offset = offset;
+	struct inode *inode = file->f_dentry->d_inode;
+	int wsize = NFS_SERVER(inode)->wsize;
+	struct nfs_writeverf first_verf, ret_verf;
+	struct page *pages[NFS_WRITE_MAXIOV];
+        struct nfs_writeargs args = { NFS_FH(inode), 0, 0, NFS_FILE_SYNC, 0,
+				pages };
+
+#ifdef CONFIG_NFS_V3
+	if ((NFS_PROTO(inode)->version == 3) && (count > wsize) &&
+							(!IS_SYNC(inode)))
+		args.stable = NFS_UNSTABLE;
+#endif
+
+retry:
+	total = 0;
+	curpage = 0;
+        while (count) {
+		int len, request;
+		struct page **dest = pages;
+
+                request = count;
+                if (count > wsize)
+                        request = wsize;
+		args.count = request;
+		args.offset = offset;
+		args.pgbase = (iobuf->offset + total) & ~PAGE_MASK;
+		len = PAGE_SIZE - args.pgbase;
+
+		do {
+			struct page *page = iobuf->maplist[curpage];
+
+			if (curpage >= iobuf->nr_pages || !page) {
+				result = -EFAULT;
+				goto out_err;
+			}
+
+			*dest++ = page;
+			/* zero after the first iov */
+			if (request < len)
+				break;
+			request -= len;
+			len = PAGE_SIZE;
+			curpage++;
+		} while (request != 0);
+
+                result = nfs_direct_write_rpc(file, &args, &ret_verf);
+
+                if (result < 0)
+                        break;
+
+		if (!total)
+			memcpy(&first_verf.verifier, &ret_verf.verifier,
+								VERF_SIZE);
+		if (ret_verf.committed != NFS_FILE_SYNC) {
+			need_commit = 1;
+			if (memcmp(&first_verf.verifier, &ret_verf.verifier,
+								VERF_SIZE))
+				goto print_retry;
+		}
+
+                total += result;
+                count -= result;
+                offset += result;
+        };
+
+out_err:
+	/*
+	 * Commit data written so far, even in the event of an error
+	 */
+	if (need_commit) {
+		if (nfs_direct_commit_rpc(inode, save_offset,
+					iobuf->length - count, &ret_verf))
+			goto print_retry;
+		if (memcmp(&first_verf.verifier, &ret_verf.verifier,
+								VERF_SIZE))
+			goto print_retry;
+	}
+
+	if (!total)
+		return result;
+	return total;
+
+print_retry:
+	printk(KERN_INFO "%s: detected server restart; retrying with FILE_SYNC\n",
+			__FUNCTION__);
+	args.stable = NFS_FILE_SYNC;
+	offset = save_offset;
+	count = iobuf->length;
+	goto retry;
+}
+
+/*
+ * Read or write data, moving the data directly to/from the
+ * application's buffer without caching in the page cache.
+ *
+ * Rules for direct I/O
+ *
+ * 1.  block size = 512 bytes or more
+ * 2.  file byte offset is block aligned
+ * 3.  byte count is a multiple of block size
+ * 4.  user buffer is not aligned
+ * 5.  user buffer is faulted in and pinned
+ *
+ * These are verified before we get here.
+ */
+int
+nfs_direct_IO(int rw, struct file *file, struct kiobuf *iobuf,
+	unsigned long blocknr, int blocksize)
+{
+	int result = -EINVAL;
+	size_t count = iobuf->length;
+	struct dentry *dentry = file->f_dentry;
+	struct inode *inode = dentry->d_inode;
+	loff_t offset = (loff_t) blocknr << inode->i_blkbits;
+
+	switch (rw) {
+	case READ:
+		dfprintk(VFS,
+			"NFS: direct_IO(READ) (%s/%s) off/cnt(%Lu/%d)\n",
+				dentry->d_parent->d_name.name,
+					dentry->d_name.name, offset, count);
+
+		result = nfs_direct_read(file, iobuf, offset, count);
+		break;
+	case WRITE:
+		dfprintk(VFS,
+			"NFS: direct_IO(WRITE) (%s/%s) off/cnt(%Lu/%d)\n",
+				dentry->d_parent->d_name.name,
+					dentry->d_name.name, offset, count);
+
+		result = nfs_direct_write(file, iobuf, offset, count);
+		break;
+	default:
+		break;
+	}
+
+	dfprintk(VFS, "NFS: direct_IO result = %d\n", result);
+	return result;
+}
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
new file mode 100644
index 00000000000000..5c85bb9114497a
--- /dev/null
+++ b/fs/nfs/file.c
@@ -0,0 +1,373 @@
+/*
+ *  linux/fs/nfs/file.c
+ *
+ *  Copyright (C) 1992  Rick Sladkey
+ *
+ *  Changes Copyright (C) 1994 by Florian La Roche
+ *   - Do not copy data too often around in the kernel.
+ *   - In nfs_file_read the return value of kmalloc wasn't checked.
+ *   - Put in a better version of read look-ahead buffering. Original idea
+ *     and implementation by Wai S Kok elekokws@ee.nus.sg.
+ *
+ *  Expire cache on write to a file by Wai S Kok (Oct 1994).
+ *
+ *  Total rewrite of read side for new NFS buffer cache.. Linus.
+ *
+ *  nfs regular file handling functions
+ */
+
+#include <linux/config.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/fcntl.h>
+#include <linux/stat.h>
+#include <linux/nfs_fs.h>
+#include <linux/nfs_mount.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/pagemap.h>
+#include <linux/lockd/bind.h>
+#include <linux/smp_lock.h>
+
+#include <asm/uaccess.h>
+#include <asm/system.h>
+
+#define NFSDBG_FACILITY		NFSDBG_FILE
+
+static int  nfs_file_mmap(struct file *, struct vm_area_struct *);
+static ssize_t nfs_file_read(struct file *, char *, size_t, loff_t *);
+static ssize_t nfs_file_write(struct file *, const char *, size_t, loff_t *);
+static int  nfs_file_flush(struct file *);
+static int  nfs_fsync(struct file *, struct dentry *dentry, int datasync);
+
+struct file_operations nfs_file_operations = {
+	llseek:		generic_file_llseek,
+	read:		nfs_file_read,
+	write:		nfs_file_write,
+	mmap:		nfs_file_mmap,
+	open:		nfs_open,
+	flush:		nfs_file_flush,
+	release:	nfs_release,
+	fsync:		nfs_fsync,
+	lock:		nfs_lock,
+};
+
+struct inode_operations nfs_file_inode_operations = {
+	permission:	nfs_permission,
+	revalidate:	nfs_revalidate,
+	setattr:	nfs_notify_change,
+};
+
+/* Hack for future NFS swap support */
+#ifndef IS_SWAPFILE
+# define IS_SWAPFILE(inode)	(0)
+#endif
+
+/*
+ * Flush all dirty pages, and check for write errors.
+ *
+ */
+static int
+nfs_file_flush(struct file *file)
+{
+	struct inode	*inode = file->f_dentry->d_inode;
+	int		status;
+
+	dfprintk(VFS, "nfs: flush(%x/%ld)\n", inode->i_dev, inode->i_ino);
+
+	/* Make sure all async reads have been sent off. We don't bother
+	 * waiting on them though... */
+	if (file->f_mode & FMODE_READ)
+		nfs_pagein_inode(inode, 0, 0);
+
+	status = nfs_wb_all(inode);
+	if (!status) {
+		status = file->f_error;
+		file->f_error = 0;
+	}
+	return status;
+}
+
+static ssize_t
+nfs_file_read(struct file * file, char * buf, size_t count, loff_t *ppos)
+{
+	struct dentry * dentry = file->f_dentry;
+	struct inode * inode = dentry->d_inode;
+	ssize_t result;
+
+	dfprintk(VFS, "nfs: read(%s/%s, %lu@%lu)\n",
+		dentry->d_parent->d_name.name, dentry->d_name.name,
+		(unsigned long) count, (unsigned long) *ppos);
+
+	result = nfs_revalidate_inode(NFS_SERVER(inode), inode);
+	if (!result)
+		result = generic_file_read(file, buf, count, ppos);
+	return result;
+}
+
+static int
+nfs_file_mmap(struct file * file, struct vm_area_struct * vma)
+{
+	struct dentry *dentry = file->f_dentry;
+	struct inode *inode = dentry->d_inode;
+	int	status;
+
+	dfprintk(VFS, "nfs: mmap(%s/%s)\n",
+		dentry->d_parent->d_name.name, dentry->d_name.name);
+
+	status = nfs_revalidate_inode(NFS_SERVER(inode), inode);
+	if (!status)
+		status = generic_file_mmap(file, vma);
+	return status;
+}
+
+/*
+ * Flush any dirty pages for this process, and check for write errors.
+ * The return status from this call provides a reliable indication of
+ * whether any write errors occurred for this process.
+ */
+static int
+nfs_fsync(struct file *file, struct dentry *dentry, int datasync)
+{
+	struct inode *inode = dentry->d_inode;
+	int status;
+
+	dfprintk(VFS, "nfs: fsync(%x/%ld)\n", inode->i_dev, inode->i_ino);
+
+	lock_kernel();
+	status = nfs_wb_all(inode);
+	if (!status) {
+		status = file->f_error;
+		file->f_error = 0;
+	}
+	unlock_kernel();
+	return status;
+}
+
+/*
+ * This does the "real" work of the write. The generic routine has
+ * allocated the page, locked it, done all the page alignment stuff
+ * calculations etc. Now we should just copy the data from user
+ * space and write it back to the real medium..
+ *
+ * If the writer ends up delaying the write, the writer needs to
+ * increment the page use counts until he is done with the page.
+ */
+static int nfs_prepare_write(struct file *file, struct page *page, unsigned offset, unsigned to)
+{
+	return nfs_flush_incompatible(file, page);
+}
+
+static int nfs_commit_write(struct file *file, struct page *page, unsigned offset, unsigned to)
+{
+	long status;
+
+	lock_kernel();
+	status = nfs_updatepage(file, page, offset, to-offset);
+	unlock_kernel();
+	return status;
+}
+
+/*
+ * The following is used by wait_on_page(), generic_file_readahead()
+ * to initiate the completion of any page readahead operations.
+ */
+static int nfs_sync_page(struct page *page)
+{
+	struct address_space *mapping;
+	struct inode	*inode;
+	unsigned long	index = page_index(page);
+	unsigned int	rpages;
+	int		result;
+
+	mapping = page->mapping;
+	if (!mapping)
+		return 0;
+	inode = mapping->host;
+	if (!inode)
+		return 0;
+
+	NFS_SetPageSync(page);
+	rpages = NFS_SERVER(inode)->rpages;
+	result = nfs_pagein_inode(inode, index, rpages);
+	if (result < 0)
+		return result;
+	return 0;
+}
+
+struct address_space_operations nfs_file_aops = {
+	readpage: nfs_readpage,
+	sync_page: nfs_sync_page,
+	writepage: nfs_writepage,
+#ifdef CONFIG_NFS_DIRECTIO
+	direct_fileIO: nfs_direct_IO,
+#endif
+	prepare_write: nfs_prepare_write,
+	commit_write: nfs_commit_write
+};
+
+/* 
+ * Write to a file (through the page cache).
+ */
+static ssize_t
+nfs_file_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
+{
+	struct dentry * dentry = file->f_dentry;
+	struct inode * inode = dentry->d_inode;
+	ssize_t result;
+
+	dfprintk(VFS, "nfs: write(%s/%s(%ld), %lu@%lu)\n",
+		dentry->d_parent->d_name.name, dentry->d_name.name,
+		inode->i_ino, (unsigned long) count, (unsigned long) *ppos);
+
+	result = -EBUSY;
+	if (IS_SWAPFILE(inode))
+		goto out_swapfile;
+	result = nfs_revalidate_inode(NFS_SERVER(inode), inode);
+	if (result)
+		goto out;
+
+	result = count;
+	if (!count)
+		goto out;
+
+	result = generic_file_write(file, buf, count, ppos);
+out:
+	return result;
+
+out_swapfile:
+	printk(KERN_INFO "NFS: attempt to write to active swap file!\n");
+	goto out;
+}
+
+static int
+do_getlk(struct inode *inode, int cmd, struct file_lock *fl)
+{
+	int status;
+
+	lock_kernel();
+	status = nlmclnt_proc(inode, cmd, fl);
+	unlock_kernel();
+	return status;
+}
+
+static int
+do_unlk(struct inode *inode, int cmd, struct file_lock *fl)
+{
+	sigset_t oldset;
+	int status;
+
+	rpc_clnt_sigmask(NFS_CLIENT(inode), &oldset);
+	/*
+	 * Flush all pending writes before doing anything
+	 * with locks..
+	 */
+	filemap_fdatasync(inode->i_mapping);
+	down(&inode->i_sem);
+	nfs_wb_all(inode);
+	up(&inode->i_sem);
+	filemap_fdatawait(inode->i_mapping);
+
+	/* NOTE: special case
+	 *	If we're signalled while cleaning up locks on process exit, we
+	 *	still need to complete the unlock.
+	 */
+	lock_kernel();
+	status = nlmclnt_proc(inode, cmd, fl);
+	unlock_kernel();
+	rpc_clnt_sigunmask(NFS_CLIENT(inode), &oldset);
+	return status;
+}
+
+static int
+do_setlk(struct file *filp, int cmd, struct file_lock *fl)
+{
+	struct inode *inode = filp->f_dentry->d_inode;
+	int status;
+
+	/*
+	 * Flush all pending writes before doing anything
+	 * with locks..
+	 */
+	status = filemap_fdatasync(inode->i_mapping);
+	if (status == 0) {
+		down(&inode->i_sem);
+		status = nfs_wb_all(inode);
+		up(&inode->i_sem);
+		if (status == 0)
+			status = filemap_fdatawait(inode->i_mapping);
+	}
+	if (status < 0)
+		return status;
+
+	lock_kernel();
+	status = nlmclnt_proc(inode, cmd, fl);
+	/* If we were signalled we still need to ensure that
+	 * we clean up any state on the server. We therefore
+	 * record the lock call as having succeeded in order to
+	 * ensure that locks_remove_posix() cleans it out when
+	 * the process exits.
+	 */
+	if (status == -EINTR || status == -ERESTARTSYS)
+		posix_lock_file(filp, fl, 0);
+	unlock_kernel();
+	if (status < 0)
+		return status;
+
+	/*
+	 * Make sure we clear the cache whenever we try to get the lock.
+	 * This makes locking act as a cache coherency point.
+	 */
+	filemap_fdatasync(inode->i_mapping);
+	down(&inode->i_sem);
+	nfs_wb_all(inode);      /* we may have slept */
+	up(&inode->i_sem);
+	filemap_fdatawait(inode->i_mapping);
+	nfs_zap_caches(inode);
+	return 0;
+}
+
+/*
+ * Lock a (portion of) a file
+ */
+int
+nfs_lock(struct file *filp, int cmd, struct file_lock *fl)
+{
+	struct inode * inode = filp->f_dentry->d_inode;
+
+	dprintk("NFS: nfs_lock(f=%4x/%ld, t=%x, fl=%x, r=%Ld:%Ld)\n",
+			inode->i_dev, inode->i_ino,
+			fl->fl_type, fl->fl_flags,
+			(long long)fl->fl_start, (long long)fl->fl_end);
+
+	if (!inode)
+		return -EINVAL;
+
+	/* No mandatory locks over NFS */
+	if ((inode->i_mode & (S_ISGID | S_IXGRP)) == S_ISGID)
+		return -ENOLCK;
+
+	/* Fake OK code if mounted without NLM support */
+	if (NFS_SERVER(inode)->flags & NFS_MOUNT_NONLM) {
+		if (IS_GETLK(cmd))
+			return LOCK_USE_CLNT;
+		return 0;
+	}
+
+	/*
+	 * No BSD flocks over NFS allowed.
+	 * Note: we could try to fake a POSIX lock request here by
+	 * using ((u32) filp | 0x80000000) or some such as the pid.
+	 * Not sure whether that would be unique, though, or whether
+	 * that would break in other places.
+	 */
+	if (!fl->fl_owner || (fl->fl_flags & (FL_POSIX|FL_BROKEN)) != FL_POSIX)
+		return -ENOLCK;
+
+	if (IS_GETLK(cmd))
+		return do_getlk(inode, cmd, fl);
+	if (fl->fl_type == F_UNLCK)
+		return do_unlk(inode, cmd, fl);
+	return do_setlk(filp, cmd, fl);
+}
diff --git a/fs/nfs/flushd.c b/fs/nfs/flushd.c
new file mode 100644
index 00000000000000..c218621e40c805
--- /dev/null
+++ b/fs/nfs/flushd.c
@@ -0,0 +1,205 @@
+/*
+ * linux/fs/nfs/flushd.c
+ *
+ * For each NFS mount, there is a separate cache object that contains
+ * a hash table of all clusters. With this cache, an async RPC task
+ * (`flushd') is associated, which wakes up occasionally to inspect
+ * its list of dirty buffers.
+ * (Note that RPC tasks aren't kernel threads. Take a look at the
+ * rpciod code to understand what they are).
+ *
+ * Inside the cache object, we also maintain a count of the current number
+ * of dirty pages, which may not exceed a certain threshold.
+ * (FIXME: This threshold should be configurable).
+ *
+ * The code is streamlined for what I think is the prevalent case for
+ * NFS traffic, which is sequential write access without concurrent
+ * access by different processes.
+ *
+ * Copyright (C) 1996, 1997, Olaf Kirch <okir@monad.swb.de>
+ *
+ * Rewritten 6/3/2000 by Trond Myklebust
+ * Copyright (C) 1999, 2000, Trond Myklebust <trond.myklebust@fys.uio.no>
+ */
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/pagemap.h>
+#include <linux/file.h>
+
+#include <linux/sched.h>
+
+#include <linux/sunrpc/auth.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/sched.h>
+
+#include <linux/smp_lock.h>
+
+#include <linux/nfs.h>
+#include <linux/nfs_fs.h>
+#include <linux/nfs_page.h>
+#include <linux/nfs_fs_sb.h>
+#include <linux/nfs_flushd.h>
+
+/*
+ * Various constants
+ */
+#define NFSDBG_FACILITY         NFSDBG_PAGECACHE
+
+/*
+ * This is the wait queue all cluster daemons sleep on
+ */
+static RPC_WAITQ(flushd_queue, "nfs_flushd");
+
+/*
+ * Local function declarations.
+ */
+static void	nfs_flushd(struct rpc_task *);
+static void	nfs_flushd_exit(struct rpc_task *);
+
+
+static int nfs_reqlist_init(struct nfs_server *server)
+{
+	struct nfs_reqlist	*cache;
+	struct rpc_task		*task;
+	int			status;
+
+	dprintk("NFS: writecache_init\n");
+
+	lock_kernel();
+	status = -ENOMEM;
+	/* Create the RPC task */
+	if (!(task = rpc_new_task(server->client, NULL, RPC_TASK_ASYNC)))
+		goto out_unlock;
+
+	cache = server->rw_requests;
+
+	status = 0;
+	if (cache->task)
+		goto out_unlock;
+
+	task->tk_calldata = server;
+
+	cache->task = task;
+
+	/* Run the task */
+	cache->runat = jiffies;
+
+	cache->auth = server->client->cl_auth;
+	task->tk_action   = nfs_flushd;
+	task->tk_exit   = nfs_flushd_exit;
+
+	rpc_execute(task);
+	unlock_kernel();
+	return 0;
+ out_unlock:
+	if (task)
+		rpc_release_task(task);
+	unlock_kernel();
+	return status;
+}
+
+void nfs_reqlist_exit(struct nfs_server *server)
+{
+	struct nfs_reqlist      *cache;
+
+	lock_kernel();
+	cache = server->rw_requests;
+	if (!cache)
+		goto out;
+
+	dprintk("NFS: reqlist_exit (ptr %p rpc %p)\n", cache, cache->task);
+
+	while (cache->task) {
+		rpc_exit(cache->task, 0);
+		rpc_wake_up_task(cache->task);
+
+		interruptible_sleep_on_timeout(&cache->request_wait, 1 * HZ);
+	}
+ out:
+	unlock_kernel();
+}
+
+int nfs_reqlist_alloc(struct nfs_server *server)
+{
+	struct nfs_reqlist	*cache;
+	if (server->rw_requests)
+		return 0;
+
+	cache = (struct nfs_reqlist *)kmalloc(sizeof(*cache), GFP_KERNEL);
+	if (!cache)
+		return -ENOMEM;
+
+	memset(cache, 0, sizeof(*cache));
+	atomic_set(&cache->nr_requests, 0);
+	init_waitqueue_head(&cache->request_wait);
+	server->rw_requests = cache;
+
+	return nfs_reqlist_init(server);
+}
+
+void nfs_reqlist_free(struct nfs_server *server)
+{
+	if (server->rw_requests) {
+		kfree(server->rw_requests);
+		server->rw_requests = NULL;
+	}
+}
+
+#define NFS_FLUSHD_TIMEOUT	(30*HZ)
+static void
+nfs_flushd(struct rpc_task *task)
+{
+	struct nfs_server	*server;
+	struct nfs_reqlist	*cache;
+	LIST_HEAD(head);
+
+        dprintk("NFS: %4d flushd starting\n", task->tk_pid);
+	server = (struct nfs_server *) task->tk_calldata;
+        cache = server->rw_requests;
+
+	for(;;) {
+		spin_lock(&nfs_wreq_lock);
+		if (nfs_scan_lru_dirty_timeout(server, &head)) {
+			spin_unlock(&nfs_wreq_lock);
+			nfs_flush_list(&head, server->wpages, FLUSH_AGING);
+			continue;
+		}
+		if (nfs_scan_lru_read_timeout(server, &head)) {
+			spin_unlock(&nfs_wreq_lock);
+			nfs_pagein_list(&head, server->rpages);
+			continue;
+		}
+#ifdef CONFIG_NFS_V3
+		if (nfs_scan_lru_commit_timeout(server, &head)) {
+			spin_unlock(&nfs_wreq_lock);
+			nfs_commit_list(&head, FLUSH_AGING);
+			continue;
+		}
+#endif
+		spin_unlock(&nfs_wreq_lock);
+		break;
+	}
+
+	dprintk("NFS: %4d flushd back to sleep\n", task->tk_pid);
+	if (task->tk_action) {
+		task->tk_timeout = NFS_FLUSHD_TIMEOUT;
+		cache->runat = jiffies + task->tk_timeout;
+		rpc_sleep_on(&flushd_queue, task, NULL, NULL);
+	}
+}
+
+static void
+nfs_flushd_exit(struct rpc_task *task)
+{
+	struct nfs_server	*server;
+	struct nfs_reqlist	*cache;
+	server = (struct nfs_server *) task->tk_calldata;
+	cache = server->rw_requests;
+
+	if (cache->task == task)
+		cache->task = NULL;
+	wake_up(&cache->request_wait);
+}
+
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
new file mode 100644
index 00000000000000..67f9d9cf35c60f
--- /dev/null
+++ b/fs/nfs/inode.c
@@ -0,0 +1,1179 @@
+/*
+ *  linux/fs/nfs/inode.c
+ *
+ *  Copyright (C) 1992  Rick Sladkey
+ *
+ *  nfs inode and superblock handling functions
+ *
+ *  Modularised by Alan Cox <Alan.Cox@linux.org>, while hacking some
+ *  experimental NFS changes. Modularisation taken straight from SYS5 fs.
+ *
+ *  Change to nfs_read_super() to permit NFS mounts to multi-homed hosts.
+ *  J.S.Peatfield@damtp.cam.ac.uk
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/string.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <linux/unistd.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/stats.h>
+#include <linux/nfs_fs.h>
+#include <linux/nfs_mount.h>
+#include <linux/nfs_flushd.h>
+#include <linux/lockd/bind.h>
+#include <linux/smp_lock.h>
+#include <linux/seq_file.h>
+
+#include <asm/system.h>
+#include <asm/uaccess.h>
+
+#define CONFIG_NFS_SNAPSHOT 1
+#define NFSDBG_FACILITY		NFSDBG_VFS
+#define NFS_PARANOIA 1
+
+static struct inode * __nfs_fhget(struct super_block *, struct nfs_fh *, struct nfs_fattr *);
+void nfs_zap_caches(struct inode *);
+static void nfs_invalidate_inode(struct inode *);
+
+static void nfs_read_inode(struct inode *);
+static void nfs_write_inode(struct inode *,int);
+static void nfs_delete_inode(struct inode *);
+static void nfs_put_super(struct super_block *);
+static void nfs_clear_inode(struct inode *);
+static void nfs_umount_begin(struct super_block *);
+static int  nfs_statfs(struct super_block *, struct statfs *);
+static int  nfs_show_options(struct seq_file *, struct vfsmount *);
+
+static struct super_operations nfs_sops = { 
+	read_inode:	nfs_read_inode,
+	write_inode:	nfs_write_inode,
+	delete_inode:	nfs_delete_inode,
+	put_super:	nfs_put_super,
+	statfs:		nfs_statfs,
+	clear_inode:	nfs_clear_inode,
+	umount_begin:	nfs_umount_begin,
+	show_options:	nfs_show_options,
+};
+
+/*
+ * RPC cruft for NFS
+ */
+struct rpc_stat			nfs_rpcstat = { &nfs_program };
+static struct rpc_version *	nfs_version[] = {
+	NULL,
+	NULL,
+	&nfs_version2,
+#ifdef CONFIG_NFS_V3
+	&nfs_version3,
+#endif
+};
+
+struct rpc_program		nfs_program = {
+	"nfs",
+	NFS_PROGRAM,
+	sizeof(nfs_version) / sizeof(nfs_version[0]),
+	nfs_version,
+	&nfs_rpcstat,
+};
+
+static inline unsigned long
+nfs_fattr_to_ino_t(struct nfs_fattr *fattr)
+{
+	return nfs_fileid_to_ino_t(fattr->fileid);
+}
+
+/*
+ * The "read_inode" function doesn't actually do anything:
+ * the real data is filled in later in nfs_fhget. Here we
+ * just mark the cache times invalid, and zero out i_mode
+ * (the latter makes "nfs_refresh_inode" do the right thing
+ * wrt pipe inodes)
+ */
+static void
+nfs_read_inode(struct inode * inode)
+{
+	inode->i_blksize = inode->i_sb->s_blocksize;
+	inode->i_mode = 0;
+	inode->i_rdev = 0;
+	/* We can't support UPDATE_ATIME(), since the server will reset it */
+	inode->i_flags |= S_NOATIME;
+	INIT_LIST_HEAD(&inode->u.nfs_i.read);
+	INIT_LIST_HEAD(&inode->u.nfs_i.dirty);
+	INIT_LIST_HEAD(&inode->u.nfs_i.commit);
+	INIT_LIST_HEAD(&inode->u.nfs_i.writeback);
+	NFS_CACHEINV(inode);
+	NFS_ATTRTIMEO(inode) = NFS_MINATTRTIMEO(inode);
+	NFS_ATTRTIMEO_UPDATE(inode) = jiffies;
+}
+
+static void
+nfs_write_inode(struct inode *inode, int sync)
+{
+	int flags = sync ? FLUSH_WAIT : 0;
+
+	nfs_sync_file(inode, 0, 0, flags);
+}
+
+static void
+nfs_delete_inode(struct inode * inode)
+{
+	dprintk("NFS: delete_inode(%x/%ld)\n", inode->i_dev, inode->i_ino);
+
+	/*
+	 * The following can never actually happen...
+	 */
+	if (nfs_have_writebacks(inode) || nfs_have_read(inode)) {
+		printk(KERN_ERR "nfs_delete_inode: inode %ld has pending RPC requests\n", inode->i_ino);
+	}
+
+	clear_inode(inode);
+}
+
+/*
+ * For the moment, the only task for the NFS clear_inode method is to
+ * release the mmap credential
+ */
+static void
+nfs_clear_inode(struct inode *inode)
+{
+	struct rpc_cred *cred = NFS_I(inode)->mm_cred;
+
+	if (cred)
+		put_rpccred(cred);
+}
+
+void
+nfs_put_super(struct super_block *sb)
+{
+	struct nfs_server *server = &sb->u.nfs_sb.s_server;
+	struct rpc_clnt	*rpc;
+
+	/*
+	 * First get rid of the request flushing daemon.
+	 * Relies on rpc_shutdown_client() waiting on all
+	 * client tasks to finish.
+	 */
+	nfs_reqlist_exit(server);
+
+	if ((rpc = server->client) != NULL)
+		rpc_shutdown_client(rpc);
+
+	nfs_reqlist_free(server);
+
+	if (!(server->flags & NFS_MOUNT_NONLM))
+		lockd_down();	/* release rpc.lockd */
+	rpciod_down();		/* release rpciod */
+
+	kfree(server->hostname);
+}
+
+void
+nfs_umount_begin(struct super_block *sb)
+{
+	struct nfs_server *server = &sb->u.nfs_sb.s_server;
+	struct rpc_clnt	*rpc;
+
+	/* -EIO all pending I/O */
+	if ((rpc = server->client) != NULL)
+		rpc_killall_tasks(rpc);
+}
+
+
+static inline unsigned long
+nfs_block_bits(unsigned long bsize, unsigned char *nrbitsp)
+{
+	/* make sure blocksize is a power of two */
+	if ((bsize & (bsize - 1)) || nrbitsp) {
+		unsigned char	nrbits;
+
+		for (nrbits = 31; nrbits && !(bsize & (1 << nrbits)); nrbits--)
+			;
+		bsize = 1 << nrbits;
+		if (nrbitsp)
+			*nrbitsp = nrbits;
+	}
+
+	return bsize;
+}
+
+/*
+ * Calculate the number of 512byte blocks used.
+ */
+static inline unsigned long
+nfs_calc_block_size(u64 tsize)
+{
+	loff_t used = (tsize + 511) >> 9;
+	return (used > ULONG_MAX) ? ULONG_MAX : used;
+}
+
+/*
+ * Compute and set NFS server blocksize
+ */
+static inline unsigned long
+nfs_block_size(unsigned long bsize, unsigned char *nrbitsp)
+{
+	if (bsize < 1024)
+		bsize = NFS_DEF_FILE_IO_BUFFER_SIZE;
+	else if (bsize >= NFS_MAX_FILE_IO_BUFFER_SIZE)
+		bsize = NFS_MAX_FILE_IO_BUFFER_SIZE;
+
+	return nfs_block_bits(bsize, nrbitsp);
+}
+
+/*
+ * Obtain the root inode of the file system.
+ */
+static struct inode *
+nfs_get_root(struct super_block *sb, struct nfs_fh *rootfh)
+{
+	struct nfs_server	*server = &sb->u.nfs_sb.s_server;
+	struct nfs_fattr	fattr;
+	struct inode		*inode;
+	int			error;
+
+	if ((error = server->rpc_ops->getroot(server, rootfh, &fattr)) < 0) {
+		printk(KERN_NOTICE "nfs_get_root: getattr error = %d\n", -error);
+		return NULL;
+	}
+
+	inode = __nfs_fhget(sb, rootfh, &fattr);
+	return inode;
+}
+
+/*
+ * The way this works is that the mount process passes a structure
+ * in the data argument which contains the server's IP address
+ * and the root file handle obtained from the server's mount
+ * daemon. We stash these away in the private superblock fields.
+ */
+struct super_block *
+nfs_read_super(struct super_block *sb, void *raw_data, int silent)
+{
+	struct nfs_mount_data	*data = (struct nfs_mount_data *) raw_data;
+	struct nfs_server	*server;
+	struct rpc_xprt		*xprt = NULL;
+	struct rpc_clnt		*clnt = NULL;
+	struct nfs_fh		*root = &data->root, fh;
+	struct inode		*root_inode = NULL;
+	unsigned int		authflavor;
+	struct sockaddr_in	srvaddr;
+	struct rpc_timeout	timeparms;
+	struct nfs_fsinfo	fsinfo;
+	int			tcp, version, maxlen;
+
+	memset(&sb->u.nfs_sb, 0, sizeof(sb->u.nfs_sb));
+	if (!data)
+		goto out_miss_args;
+
+	memset(&fh, 0, sizeof(fh));
+	if (data->version != NFS_MOUNT_VERSION) {
+		printk("nfs warning: mount version %s than kernel\n",
+			data->version < NFS_MOUNT_VERSION ? "older" : "newer");
+		if (data->version < 2)
+			data->namlen = 0;
+		if (data->version < 3)
+			data->bsize  = 0;
+		if (data->version < 4) {
+			data->flags &= ~NFS_MOUNT_VER3;
+			root = &fh;
+			root->size = NFS2_FHSIZE;
+			memcpy(root->data, data->old_root.data, NFS2_FHSIZE);
+		}
+	}
+
+	/* We now require that the mount process passes the remote address */
+	memcpy(&srvaddr, &data->addr, sizeof(srvaddr));
+	if (srvaddr.sin_addr.s_addr == INADDR_ANY)
+		goto out_no_remote;
+
+	sb->s_magic      = NFS_SUPER_MAGIC;
+	sb->s_op         = &nfs_sops;
+	sb->s_blocksize_bits = 0;
+	sb->s_blocksize  = nfs_block_size(data->bsize, &sb->s_blocksize_bits);
+	server           = &sb->u.nfs_sb.s_server;
+	server->rsize    = nfs_block_size(data->rsize, NULL);
+	server->wsize    = nfs_block_size(data->wsize, NULL);
+	server->flags    = data->flags & NFS_MOUNT_FLAGMASK;
+
+	if (data->flags & NFS_MOUNT_NOAC) {
+		data->acregmin = data->acregmax = 0;
+		data->acdirmin = data->acdirmax = 0;
+		sb->s_flags |= MS_SYNCHRONOUS;
+	}
+	server->acregmin = data->acregmin*HZ;
+	server->acregmax = data->acregmax*HZ;
+	server->acdirmin = data->acdirmin*HZ;
+	server->acdirmax = data->acdirmax*HZ;
+
+	server->namelen  = data->namlen;
+	server->hostname = kmalloc(strlen(data->hostname) + 1, GFP_KERNEL);
+	if (!server->hostname)
+		goto out_unlock;
+	strcpy(server->hostname, data->hostname);
+	INIT_LIST_HEAD(&server->lru_read);
+	INIT_LIST_HEAD(&server->lru_dirty);
+	INIT_LIST_HEAD(&server->lru_commit);
+	INIT_LIST_HEAD(&server->lru_busy);
+
+ nfsv3_try_again:
+	/* Check NFS protocol revision and initialize RPC op vector
+	 * and file handle pool. */
+	if (data->flags & NFS_MOUNT_VER3) {
+#ifdef CONFIG_NFS_V3
+		server->rpc_ops = &nfs_v3_clientops;
+		version = 3;
+		if (data->version < 4) {
+			printk(KERN_NOTICE "NFS: NFSv3 not supported by mount program.\n");
+			goto out_unlock;
+		}
+#else
+		printk(KERN_NOTICE "NFS: NFSv3 not supported.\n");
+		goto out_unlock;
+#endif
+	} else {
+		server->rpc_ops = &nfs_v2_clientops;
+		version = 2;
+        }
+
+	/* Which protocol do we use? */
+	tcp   = (data->flags & NFS_MOUNT_TCP);
+
+	/* Initialize timeout values */
+	timeparms.to_initval = data->timeo * HZ / 10;
+	timeparms.to_retries = data->retrans;
+	timeparms.to_maxval  = tcp? RPC_MAX_TCP_TIMEOUT : RPC_MAX_UDP_TIMEOUT;
+	timeparms.to_exponential = 1;
+
+	if (!timeparms.to_initval)
+		timeparms.to_initval = (tcp ? 600 : 11) * HZ / 10;
+	if (!timeparms.to_retries)
+		timeparms.to_retries = 5;
+
+	/* Now create transport and client */
+	xprt = xprt_create_proto(tcp? IPPROTO_TCP : IPPROTO_UDP,
+						&srvaddr, &timeparms);
+	if (xprt == NULL)
+		goto out_no_xprt;
+
+	/* Choose authentication flavor */
+	authflavor = RPC_AUTH_UNIX;
+	if (data->flags & NFS_MOUNT_SECURE)
+		authflavor = RPC_AUTH_DES;
+	else if (data->flags & NFS_MOUNT_KERBEROS)
+		authflavor = RPC_AUTH_KRB;
+
+	clnt = rpc_create_client(xprt, server->hostname, &nfs_program,
+				 version, authflavor);
+	if (clnt == NULL)
+		goto out_no_client;
+
+	clnt->cl_intr     = (data->flags & NFS_MOUNT_INTR)? 1 : 0;
+	clnt->cl_softrtry = (data->flags & NFS_MOUNT_SOFT)? 1 : 0;
+	clnt->cl_droppriv = (data->flags & NFS_MOUNT_BROKEN_SUID) ? 1 : 0;
+	clnt->cl_chatty   = 1;
+	server->client    = clnt;
+
+	/* Fire up rpciod if not yet running */
+	if (rpciod_up() != 0)
+		goto out_no_iod;
+
+	/*
+	 * Keep the super block locked while we try to get 
+	 * the root fh attributes.
+	 */
+	/* Did getting the root inode fail? */
+	if (!(root_inode = nfs_get_root(sb, root))
+	    && (data->flags & NFS_MOUNT_VER3)) {
+		data->flags &= ~NFS_MOUNT_VER3;
+		rpciod_down();
+		rpc_shutdown_client(server->client);
+		goto nfsv3_try_again;
+	}
+
+	if (!root_inode)
+		goto out_no_root;
+	sb->s_root = d_alloc_root(root_inode);
+	if (!sb->s_root)
+		goto out_no_root;
+
+	sb->s_root->d_op = &nfs_dentry_operations;
+
+	/* Get some general file system info */
+        if (server->rpc_ops->statfs(server, root, &fsinfo) >= 0) {
+		if (server->namelen == 0)
+			server->namelen = fsinfo.namelen;
+	} else {
+		printk(KERN_NOTICE "NFS: cannot retrieve file system info.\n");
+		goto out_no_root;
+        }
+
+	/* Work out a lot of parameters */
+	if (data->rsize == 0)
+		server->rsize = nfs_block_size(fsinfo.rtpref, NULL);
+	if (data->wsize == 0)
+		server->wsize = nfs_block_size(fsinfo.wtpref, NULL);
+	/* NFSv3: we don't have bsize, but rather rtmult and wtmult... */
+	if (!fsinfo.bsize)
+		fsinfo.bsize = (fsinfo.rtmult>fsinfo.wtmult) ? fsinfo.rtmult : fsinfo.wtmult;
+	/* Also make sure we don't go below rsize/wsize since
+	 * RPC calls are expensive */
+	if (fsinfo.bsize < server->rsize)
+		fsinfo.bsize = server->rsize;
+	if (fsinfo.bsize < server->wsize)
+		fsinfo.bsize = server->wsize;
+
+	if (data->bsize == 0)
+		sb->s_blocksize = nfs_block_bits(fsinfo.bsize, &sb->s_blocksize_bits);
+	if (server->rsize > fsinfo.rtmax)
+		server->rsize = fsinfo.rtmax;
+	if (server->wsize > fsinfo.wtmax)
+		server->wsize = fsinfo.wtmax;
+
+	server->rpages = (server->rsize + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+	if (server->rpages > NFS_READ_MAXIOV) {
+		server->rpages = NFS_READ_MAXIOV;
+		server->rsize = server->rpages << PAGE_CACHE_SHIFT;
+	}
+
+	server->wpages = (server->wsize + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+        if (server->wpages > NFS_WRITE_MAXIOV) {
+		server->wpages = NFS_WRITE_MAXIOV;
+                server->wsize = server->wpages << PAGE_CACHE_SHIFT;
+	}
+
+	server->dtsize = nfs_block_size(fsinfo.dtpref, NULL);
+	if (server->dtsize > PAGE_CACHE_SIZE)
+		server->dtsize = PAGE_CACHE_SIZE;
+	if (server->dtsize > server->rsize)
+		server->dtsize = server->rsize;
+
+        maxlen = (version == 2) ? NFS2_MAXNAMLEN : NFS3_MAXNAMLEN;
+
+        if (server->namelen == 0 || server->namelen > maxlen)
+                server->namelen = maxlen;
+
+	sb->s_maxbytes = fsinfo.maxfilesize;
+	if (sb->s_maxbytes > MAX_LFS_FILESIZE) 
+		sb->s_maxbytes = MAX_LFS_FILESIZE; 
+
+	/* Fire up the writeback cache */
+	if (nfs_reqlist_alloc(server) < 0) {
+		printk(KERN_NOTICE "NFS: cannot initialize writeback cache.\n");
+		goto failure_kill_reqlist;
+	}
+
+	/* We're airborne Set socket buffersize */
+	rpc_setbufsize(clnt, server->wsize + 100, server->rsize + 100);
+
+	/* Check whether to start the lockd process */
+	if (!(server->flags & NFS_MOUNT_NONLM))
+		lockd_up();
+	return sb;
+
+	/* Yargs. It didn't work out. */
+ failure_kill_reqlist:
+	nfs_reqlist_exit(server);
+out_no_root:
+	printk("nfs_read_super: get root inode failed\n");
+	iput(root_inode);
+	rpciod_down();
+	goto out_shutdown;
+
+out_no_iod:
+	printk(KERN_WARNING "NFS: couldn't start rpciod!\n");
+out_shutdown:
+	rpc_shutdown_client(server->client);
+	goto out_free_host;
+
+out_no_client:
+	printk(KERN_WARNING "NFS: cannot create RPC client.\n");
+	xprt_destroy(xprt);
+	goto out_free_host;
+
+out_no_xprt:
+	printk(KERN_WARNING "NFS: cannot create RPC transport.\n");
+
+out_free_host:
+	nfs_reqlist_free(server);
+	kfree(server->hostname);
+out_unlock:
+	goto out_fail;
+
+out_no_remote:
+	printk("NFS: mount program didn't pass remote address!\n");
+	goto out_fail;
+
+out_miss_args:
+	printk("nfs_read_super: missing data argument\n");
+
+out_fail:
+	return NULL;
+}
+
+static int
+nfs_statfs(struct super_block *sb, struct statfs *buf)
+{
+	struct nfs_server *server = &sb->u.nfs_sb.s_server;
+	unsigned char blockbits;
+	unsigned long blockres;
+	struct nfs_fsinfo res;
+	int error;
+
+	error = server->rpc_ops->statfs(server, NFS_FH(sb->s_root->d_inode), &res);
+	buf->f_type = NFS_SUPER_MAGIC;
+	if (error < 0)
+		goto out_err;
+
+	if (res.bsize == 0)
+		res.bsize = sb->s_blocksize;
+	buf->f_bsize = nfs_block_bits(res.bsize, &blockbits);
+	blockres = (1 << blockbits) - 1;
+	buf->f_blocks = (res.tbytes + blockres) >> blockbits;
+	buf->f_bfree = (res.fbytes + blockres) >> blockbits;
+	buf->f_bavail = (res.abytes + blockres) >> blockbits;
+	buf->f_files = res.tfiles;
+	buf->f_ffree = res.afiles;
+	if (res.namelen == 0 || res.namelen > server->namelen)
+		res.namelen = server->namelen;
+	buf->f_namelen = res.namelen;
+	return 0;
+ out_err:
+	printk("nfs_statfs: statfs error = %d\n", -error);
+	buf->f_bsize = buf->f_blocks = buf->f_bfree = buf->f_bavail = -1;
+	return 0;
+}
+
+static int nfs_show_options(struct seq_file *m, struct vfsmount *mnt)
+{
+	static struct proc_nfs_info {
+		int flag;
+		char *str;
+		char *nostr;
+	} nfs_info[] = {
+		{ NFS_MOUNT_SOFT, ",soft", ",hard" },
+		{ NFS_MOUNT_INTR, ",intr", "" },
+		{ NFS_MOUNT_POSIX, ",posix", "" },
+		{ NFS_MOUNT_TCP, ",tcp", ",udp" },
+		{ NFS_MOUNT_NOCTO, ",nocto", "" },
+		{ NFS_MOUNT_NOAC, ",noac", "" },
+		{ NFS_MOUNT_NONLM, ",nolock", ",lock" },
+		{ NFS_MOUNT_BROKEN_SUID, ",broken_suid", "" },
+		{ 0, NULL, NULL }
+	};
+	struct proc_nfs_info *nfs_infop;
+	struct nfs_server *nfss = &mnt->mnt_sb->u.nfs_sb.s_server;
+
+	seq_printf(m, ",v%d", nfss->rpc_ops->version);
+	seq_printf(m, ",rsize=%d", nfss->rsize);
+	seq_printf(m, ",wsize=%d", nfss->wsize);
+	if (nfss->acregmin != 3*HZ)
+		seq_printf(m, ",acregmin=%d", nfss->acregmin/HZ);
+	if (nfss->acregmax != 60*HZ)
+		seq_printf(m, ",acregmax=%d", nfss->acregmax/HZ);
+	if (nfss->acdirmin != 30*HZ)
+		seq_printf(m, ",acdirmin=%d", nfss->acdirmin/HZ);
+	if (nfss->acdirmax != 60*HZ)
+		seq_printf(m, ",acdirmax=%d", nfss->acdirmax/HZ);
+	for (nfs_infop = nfs_info; nfs_infop->flag; nfs_infop++) {
+		if (nfss->flags & nfs_infop->flag)
+			seq_puts(m, nfs_infop->str);
+		else
+			seq_puts(m, nfs_infop->nostr);
+	}
+	seq_puts(m, ",addr=");
+	seq_escape(m, nfss->hostname, " \t\n\\");
+	return 0;
+}
+
+/*
+ * Invalidate the local caches
+ */
+void
+nfs_zap_caches(struct inode *inode)
+{
+	NFS_ATTRTIMEO(inode) = NFS_MINATTRTIMEO(inode);
+	NFS_ATTRTIMEO_UPDATE(inode) = jiffies;
+
+	invalidate_inode_pages(inode);
+
+	memset(NFS_COOKIEVERF(inode), 0, sizeof(NFS_COOKIEVERF(inode)));
+	NFS_CACHEINV(inode);
+}
+
+/*
+ * Invalidate, but do not unhash, the inode
+ */
+static void
+nfs_invalidate_inode(struct inode *inode)
+{
+	umode_t save_mode = inode->i_mode;
+
+	make_bad_inode(inode);
+	inode->i_mode = save_mode;
+	nfs_zap_caches(inode);
+}
+
+/*
+ * Fill in inode information from the fattr.
+ */
+static void
+nfs_fill_inode(struct inode *inode, struct nfs_fh *fh, struct nfs_fattr *fattr)
+{
+	/*
+	 * Check whether the mode has been set, as we only want to
+	 * do this once. (We don't allow inodes to change types.)
+	 */
+	if (inode->i_mode == 0) {
+		NFS_FILEID(inode) = fattr->fileid;
+		inode->i_mode = fattr->mode;
+		/* Why so? Because we want revalidate for devices/FIFOs, and
+		 * that's precisely what we have in nfs_file_inode_operations.
+		 */
+		inode->i_op = &nfs_file_inode_operations;
+		if (S_ISREG(inode->i_mode)) {
+			inode->i_fop = &nfs_file_operations;
+			inode->i_data.a_ops = &nfs_file_aops;
+		} else if (S_ISDIR(inode->i_mode)) {
+			inode->i_op = &nfs_dir_inode_operations;
+			inode->i_fop = &nfs_dir_operations;
+		} else if (S_ISLNK(inode->i_mode))
+			inode->i_op = &nfs_symlink_inode_operations;
+		else
+			init_special_inode(inode, inode->i_mode, fattr->rdev);
+		memcpy(&inode->u.nfs_i.fh, fh, sizeof(inode->u.nfs_i.fh));
+	}
+	nfs_refresh_inode(inode, fattr);
+}
+
+struct nfs_find_desc {
+	struct nfs_fh		*fh;
+	struct nfs_fattr	*fattr;
+};
+
+/*
+ * In NFSv3 we can have 64bit inode numbers. In order to support
+ * this, and re-exported directories (also seen in NFSv2)
+ * we are forced to allow 2 different inodes to have the same
+ * i_ino.
+ */
+static int
+nfs_find_actor(struct inode *inode, unsigned long ino, void *opaque)
+{
+	struct nfs_find_desc	*desc = (struct nfs_find_desc *)opaque;
+	struct nfs_fh		*fh = desc->fh;
+	struct nfs_fattr	*fattr = desc->fattr;
+
+	if (NFS_FILEID(inode) != fattr->fileid)
+		return 0;
+	if (memcmp(&inode->u.nfs_i.fh, fh, sizeof(inode->u.nfs_i.fh)) != 0)
+		return 0;
+	if (is_bad_inode(inode))
+		return 0;
+	/* Force an attribute cache update if inode->i_count == 0 */
+	if (!atomic_read(&inode->i_count))
+		NFS_CACHEINV(inode);
+	return 1;
+}
+
+/*
+ * This is our own version of iget that looks up inodes by file handle
+ * instead of inode number.  We use this technique instead of using
+ * the vfs read_inode function because there is no way to pass the
+ * file handle or current attributes into the read_inode function.
+ *
+ */
+struct inode *
+nfs_fhget(struct dentry *dentry, struct nfs_fh *fhandle,
+				 struct nfs_fattr *fattr)
+{
+	struct super_block *sb = dentry->d_sb;
+
+	dprintk("NFS: nfs_fhget(%s/%s fileid=%Ld)\n",
+		dentry->d_parent->d_name.name, dentry->d_name.name,
+		(long long)fattr->fileid);
+	return __nfs_fhget(sb, fhandle, fattr);
+}
+
+/*
+ * Look up the inode by super block and fattr->fileid.
+ */
+static struct inode *
+__nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr)
+{
+	struct nfs_find_desc desc = { fh, fattr };
+	struct inode *inode = NULL;
+	unsigned long ino;
+
+	if ((fattr->valid & NFS_ATTR_FATTR) == 0)
+		goto out_no_inode;
+
+	if (!fattr->nlink) {
+		printk("NFS: Buggy server - nlink == 0!\n");
+		goto out_no_inode;
+	}
+
+	ino = nfs_fattr_to_ino_t(fattr);
+
+	if (!(inode = iget4(sb, ino, nfs_find_actor, &desc)))
+		goto out_no_inode;
+
+	nfs_fill_inode(inode, fh, fattr);
+	dprintk("NFS: __nfs_fhget(%x/%Ld ct=%d)\n",
+		inode->i_dev, (long long)NFS_FILEID(inode),
+		atomic_read(&inode->i_count));
+
+out:
+	return inode;
+
+out_no_inode:
+	printk("__nfs_fhget: iget failed\n");
+	goto out;
+}
+
+int
+nfs_notify_change(struct dentry *dentry, struct iattr *attr)
+{
+	struct inode *inode = dentry->d_inode;
+	struct nfs_fattr fattr;
+	int error;
+
+	/*
+	 * Make sure the inode is up-to-date.
+	 */
+	error = nfs_revalidate_inode(NFS_SERVER(inode),inode);
+	if (error) {
+#ifdef NFS_PARANOIA
+printk("nfs_notify_change: revalidate failed, error=%d\n", error);
+#endif
+		goto out;
+	}
+
+	if (!S_ISREG(inode->i_mode))
+		attr->ia_valid &= ~ATTR_SIZE;
+
+	filemap_fdatasync(inode->i_mapping);
+	error = nfs_wb_all(inode);
+	filemap_fdatawait(inode->i_mapping);
+	if (error)
+		goto out;
+
+	error = NFS_PROTO(inode)->setattr(inode, &fattr, attr);
+	if (error)
+		goto out;
+	/*
+	 * If we changed the size or mtime, update the inode
+	 * now to avoid invalidating the page cache.
+	 */
+	if (attr->ia_valid & ATTR_SIZE) {
+		if (attr->ia_size != fattr.size)
+			printk("nfs_notify_change: attr=%Ld, fattr=%Ld??\n",
+			       (long long) attr->ia_size, (long long)fattr.size);
+		vmtruncate(inode, attr->ia_size);
+	}
+
+	/*
+	 * If we changed the size or mtime, update the inode
+	 * now to avoid invalidating the page cache.
+	 */
+	if (!(fattr.valid & NFS_ATTR_WCC)) {
+		fattr.pre_size = NFS_CACHE_ISIZE(inode);
+		fattr.pre_mtime = NFS_CACHE_MTIME(inode);
+		fattr.pre_ctime = NFS_CACHE_CTIME(inode);
+		fattr.valid |= NFS_ATTR_WCC;
+	}
+	/* Force an attribute cache update */
+	NFS_CACHEINV(inode);
+	error = nfs_refresh_inode(inode, &fattr);
+out:
+	return error;
+}
+
+/*
+ * Wait for the inode to get unlocked.
+ * (Used for NFS_INO_LOCKED and NFS_INO_REVALIDATING).
+ */
+int
+nfs_wait_on_inode(struct inode *inode, int flag)
+{
+	struct rpc_clnt	*clnt = NFS_CLIENT(inode);
+	int error;
+	if (!(NFS_FLAGS(inode) & flag))
+		return 0;
+	atomic_inc(&inode->i_count);
+	error = nfs_wait_event(clnt, inode->i_wait, !(NFS_FLAGS(inode) & flag));
+	iput(inode);
+	return error;
+}
+
+/*
+ * Externally visible revalidation function
+ */
+int
+nfs_revalidate(struct dentry *dentry)
+{
+	struct inode *inode = dentry->d_inode;
+	return nfs_revalidate_inode(NFS_SERVER(inode), inode);
+}
+
+/*
+ * Ensure that mmap has a recent RPC credential for use when writing out
+ * shared pages
+ */
+static inline void
+nfs_set_mmcred(struct inode *inode, struct rpc_cred *cred)
+{
+	struct rpc_cred **p = &NFS_I(inode)->mm_cred,
+			*oldcred = *p;
+
+	*p = get_rpccred(cred);
+	if (oldcred)
+		put_rpccred(oldcred);
+}
+
+/*
+ * These are probably going to contain hooks for
+ * allocating and releasing RPC credentials for
+ * the file. I'll have to think about Tronds patch
+ * a bit more..
+ */
+int nfs_open(struct inode *inode, struct file *filp)
+{
+	struct rpc_auth *auth;
+	struct rpc_cred *cred;
+
+	lock_kernel();
+	auth = NFS_CLIENT(inode)->cl_auth;
+	cred = rpcauth_lookupcred(auth, 0);
+	filp->private_data = cred;
+	if (filp->f_mode & FMODE_WRITE)
+		nfs_set_mmcred(inode, cred);
+	unlock_kernel();
+	return 0;
+}
+
+int nfs_release(struct inode *inode, struct file *filp)
+{
+	struct rpc_cred *cred;
+
+	lock_kernel();
+	cred = nfs_file_cred(filp);
+	if (cred)
+		put_rpccred(cred);
+	unlock_kernel();
+	return 0;
+}
+
+/*
+ * This function is called whenever some part of NFS notices that
+ * the cached attributes have to be refreshed.
+ */
+int
+__nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
+{
+	int		 status = -ESTALE;
+	struct nfs_fattr fattr;
+
+	dfprintk(PAGECACHE, "NFS: revalidating (%x/%Ld)\n",
+		inode->i_dev, (long long)NFS_FILEID(inode));
+
+	lock_kernel();
+	if (!inode || is_bad_inode(inode))
+ 		goto out_nowait;
+	if (NFS_STALE(inode) && inode != inode->i_sb->s_root->d_inode)
+ 		goto out_nowait;
+
+	while (NFS_REVALIDATING(inode)) {
+		status = nfs_wait_on_inode(inode, NFS_INO_REVALIDATING);
+		if (status < 0)
+			goto out_nowait;
+		if (time_before(jiffies,NFS_READTIME(inode)+NFS_ATTRTIMEO(inode))) {
+			status = NFS_STALE(inode) ? -ESTALE : 0;
+			goto out_nowait;
+		}
+	}
+	NFS_FLAGS(inode) |= NFS_INO_REVALIDATING;
+
+	status = NFS_PROTO(inode)->getattr(inode, &fattr);
+	if (status) {
+		dfprintk(PAGECACHE, "nfs_revalidate_inode: (%x/%Ld) getattr failed, error=%d\n",
+			 inode->i_dev, (long long)NFS_FILEID(inode), status);
+		if (status == -ESTALE) {
+			NFS_FLAGS(inode) |= NFS_INO_STALE;
+			if (inode != inode->i_sb->s_root->d_inode)
+				remove_inode_hash(inode);
+		}
+		goto out;
+	}
+
+	status = nfs_refresh_inode(inode, &fattr);
+	if (status) {
+		dfprintk(PAGECACHE, "nfs_revalidate_inode: (%x/%Ld) refresh failed, error=%d\n",
+			 inode->i_dev, (long long)NFS_FILEID(inode), status);
+		goto out;
+	}
+	dfprintk(PAGECACHE, "NFS: (%x/%Ld) revalidation complete\n",
+		inode->i_dev, (long long)NFS_FILEID(inode));
+
+	NFS_FLAGS(inode) &= ~NFS_INO_STALE;
+out:
+	NFS_FLAGS(inode) &= ~NFS_INO_REVALIDATING;
+	wake_up(&inode->i_wait);
+ out_nowait:
+	unlock_kernel();
+	return status;
+}
+
+/*
+ * nfs_fattr_obsolete - Test if attribute data is newer than cached data
+ * @inode: inode
+ * @fattr: attributes to test
+ *
+ * Avoid stuffing the attribute cache with obsolete information.
+ * We always accept updates if the attribute cache timed out, or if
+ * fattr->ctime is newer than our cached value.
+ * If fattr->ctime matches the cached value, we still accept the update
+ * if it increases the file size.
+ */
+static inline
+int nfs_fattr_obsolete(struct inode *inode, struct nfs_fattr *fattr)
+{
+	s64 cdif;
+
+	if (time_after(jiffies, NFS_READTIME(inode)+NFS_ATTRTIMEO(inode)))
+		goto out_valid;
+	if ((cdif = (s64)fattr->ctime - (s64)NFS_CACHE_CTIME(inode)) > 0)
+		goto out_valid;
+	/* Ugh... */
+	if (cdif == 0 && fattr->size > NFS_CACHE_ISIZE(inode))
+		goto out_valid;
+	return -1;
+ out_valid:
+	return 0;
+}
+
+/*
+ * Many nfs protocol calls return the new file attributes after
+ * an operation.  Here we update the inode to reflect the state
+ * of the server's inode.
+ *
+ * This is a bit tricky because we have to make sure all dirty pages
+ * have been sent off to the server before calling invalidate_inode_pages.
+ * To make sure no other process adds more write requests while we try
+ * our best to flush them, we make them sleep during the attribute refresh.
+ *
+ * A very similar scenario holds for the dir cache.
+ */
+int
+__nfs_refresh_inode(struct inode *inode, struct nfs_fattr *fattr)
+{
+	__u64		new_size, new_mtime;
+	loff_t		new_isize;
+	time_t		new_atime;
+	int		invalid = 0;
+
+	dfprintk(VFS, "NFS: refresh_inode(%x/%ld ct=%d info=0x%x)\n",
+			inode->i_dev, inode->i_ino,
+			atomic_read(&inode->i_count), fattr->valid);
+
+	if (NFS_FILEID(inode) != fattr->fileid) {
+		printk(KERN_ERR "nfs_refresh_inode: inode number mismatch\n"
+		       "expected (0x%x/0x%Lx), got (0x%x/0x%Lx)\n",
+		       inode->i_dev, (long long)NFS_FILEID(inode),
+		       inode->i_dev, (long long)fattr->fileid);
+		goto out_err;
+	}
+
+	/*
+	 * Make sure the inode's type hasn't changed.
+	 */
+	if ((inode->i_mode & S_IFMT) != (fattr->mode & S_IFMT))
+		goto out_changed;
+
+ 	new_mtime = fattr->mtime;
+	new_size = fattr->size;
+ 	new_isize = nfs_size_to_loff_t(fattr->size);
+
+	new_atime = nfs_time_to_secs(fattr->atime);
+	/* Avoid races */
+	if (nfs_fattr_obsolete(inode, fattr))
+		goto out_nochange;
+
+	/*
+	 * Update the read time so we don't revalidate too often.
+	 */
+	NFS_READTIME(inode) = jiffies;
+
+	/*
+	 * Note: NFS_CACHE_ISIZE(inode) reflects the state of the cache.
+	 *       NOT inode->i_size!!!
+	 */
+	if (NFS_CACHE_ISIZE(inode) != new_size) {
+#ifdef NFS_DEBUG_VERBOSE
+		printk(KERN_DEBUG "NFS: isize change on %x/%ld\n", inode->i_dev, inode->i_ino);
+#endif
+		invalid = 1;
+	}
+
+	/*
+	 * Note: we don't check inode->i_mtime since pipes etc.
+	 *       can change this value in VFS without requiring a
+	 *	 cache revalidation.
+	 */
+	if (NFS_CACHE_MTIME(inode) != new_mtime) {
+#ifdef NFS_DEBUG_VERBOSE
+		printk(KERN_DEBUG "NFS: mtime change on %x/%ld\n", inode->i_dev, inode->i_ino);
+#endif
+		invalid = 1;
+	}
+
+	/* Check Weak Cache Consistency data.
+	 * If size and mtime match the pre-operation values, we can
+	 * assume that any attribute changes were caused by our NFS
+         * operation, so there's no need to invalidate the caches.
+         */
+        if ((fattr->valid & NFS_ATTR_WCC)
+	    && NFS_CACHE_ISIZE(inode) == fattr->pre_size
+	    && NFS_CACHE_MTIME(inode) == fattr->pre_mtime) {
+		invalid = 0;
+	}
+
+	/*
+	 * If we have pending writebacks, things can get
+	 * messy.
+	 */
+	if (nfs_have_writebacks(inode) && new_isize < inode->i_size)
+		new_isize = inode->i_size;
+
+	NFS_CACHE_CTIME(inode) = fattr->ctime;
+	inode->i_ctime = nfs_time_to_secs(fattr->ctime);
+
+	inode->i_atime = new_atime;
+
+	if (NFS_CACHE_MTIME(inode) != new_mtime) {
+		NFS_MTIME_UPDATE(inode) = jiffies;
+		NFS_CACHE_MTIME(inode) = new_mtime;
+		inode->i_mtime = nfs_time_to_secs(new_mtime);
+	}
+
+	NFS_CACHE_ISIZE(inode) = new_size;
+	inode->i_size = new_isize;
+
+	inode->i_mode = fattr->mode;
+	inode->i_nlink = fattr->nlink;
+	inode->i_uid = fattr->uid;
+	inode->i_gid = fattr->gid;
+
+	if (fattr->valid & NFS_ATTR_FATTR_V3) {
+		/*
+		 * report the blocks in 512byte units
+		 */
+		inode->i_blocks = nfs_calc_block_size(fattr->du.nfs3.used);
+		inode->i_blksize = inode->i_sb->s_blocksize;
+ 	} else {
+ 		inode->i_blocks = fattr->du.nfs2.blocks;
+ 		inode->i_blksize = fattr->du.nfs2.blocksize;
+ 	}
+ 	inode->i_rdev = 0;
+ 	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
+ 		inode->i_rdev = to_kdev_t(fattr->rdev);
+ 
+	/* Update attrtimeo value */
+	if (invalid) {
+		NFS_ATTRTIMEO(inode) = NFS_MINATTRTIMEO(inode);
+		NFS_ATTRTIMEO_UPDATE(inode) = jiffies;
+		invalidate_inode_pages(inode);
+		memset(NFS_COOKIEVERF(inode), 0, sizeof(NFS_COOKIEVERF(inode)));
+	} else if (time_after(jiffies, NFS_ATTRTIMEO_UPDATE(inode)+NFS_ATTRTIMEO(inode))) {
+		if ((NFS_ATTRTIMEO(inode) <<= 1) > NFS_MAXATTRTIMEO(inode))
+			NFS_ATTRTIMEO(inode) = NFS_MAXATTRTIMEO(inode);
+		NFS_ATTRTIMEO_UPDATE(inode) = jiffies;
+	}
+
+	return 0;
+ out_nochange:
+	if (new_atime - inode->i_atime > 0)
+		inode->i_atime = new_atime;
+	return 0;
+ out_changed:
+	/*
+	 * Big trouble! The inode has become a different object.
+	 */
+#ifdef NFS_PARANOIA
+	printk(KERN_DEBUG "nfs_refresh_inode: inode %ld mode changed, %07o to %07o\n",
+	       inode->i_ino, inode->i_mode, fattr->mode);
+#endif
+	/*
+	 * No need to worry about unhashing the dentry, as the
+	 * lookup validation will know that the inode is bad.
+	 * (But we fall through to invalidate the caches.)
+	 */
+	nfs_invalidate_inode(inode);
+ out_err:
+	return -EIO;
+}
+
+/*
+ * File system information
+ */
+static DECLARE_FSTYPE(nfs_fs_type, "nfs", nfs_read_super, FS_ODD_RENAME);
+
+extern int nfs_init_nfspagecache(void);
+extern void nfs_destroy_nfspagecache(void);
+extern int nfs_init_readpagecache(void);
+extern int nfs_destroy_readpagecache(void);
+extern int nfs_init_writepagecache(void);
+extern int nfs_destroy_writepagecache(void);
+
+/*
+ * Initialize NFS
+ */
+static int __init init_nfs_fs(void)
+{
+	int err;
+
+	err = nfs_init_nfspagecache();
+	if (err)
+		return err;
+
+	err = nfs_init_readpagecache();
+	if (err)
+		return err;
+
+	err = nfs_init_writepagecache();
+	if (err)
+		return err;
+
+#ifdef CONFIG_PROC_FS
+	rpc_proc_register(&nfs_rpcstat);
+#endif
+        return register_filesystem(&nfs_fs_type);
+}
+
+static void __exit exit_nfs_fs(void)
+{
+	nfs_destroy_writepagecache();
+	nfs_destroy_readpagecache();
+	nfs_destroy_nfspagecache();
+#ifdef CONFIG_PROC_FS
+	rpc_proc_unregister("nfs");
+#endif
+	unregister_filesystem(&nfs_fs_type);
+}
+
+EXPORT_NO_SYMBOLS;
+/* Not quite true; I just maintain it */
+MODULE_AUTHOR("Olaf Kirch <okir@monad.swb.de>");
+MODULE_LICENSE("GPL");
+
+module_init(init_nfs_fs)
+module_exit(exit_nfs_fs)
diff --git a/fs/nfs/mount_clnt.c b/fs/nfs/mount_clnt.c
new file mode 100644
index 00000000000000..955bb1537ec64e
--- /dev/null
+++ b/fs/nfs/mount_clnt.c
@@ -0,0 +1,185 @@
+/*
+ * linux/fs/nfs/mount_clnt.c
+ *
+ * MOUNT client to support NFSroot.
+ *
+ * Copyright (C) 1997, Olaf Kirch <okir@monad.swb.de>
+ */
+
+#include <linux/types.h>
+#include <linux/socket.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/uio.h>
+#include <linux/net.h>
+#include <linux/in.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/xprt.h>
+#include <linux/sunrpc/sched.h>
+#include <linux/nfs_fs.h>
+
+#ifdef RPC_DEBUG
+# define NFSDBG_FACILITY	NFSDBG_ROOT
+#endif
+
+/*
+#define MOUNT_PROGRAM		100005
+#define MOUNT_VERSION		1
+#define MOUNT_MNT		1
+#define MOUNT_UMNT		3
+ */
+
+static struct rpc_clnt *	mnt_create(char *, struct sockaddr_in *,
+								int, int);
+struct rpc_program      mnt_program;
+
+struct mnt_fhstatus {
+	unsigned int		status;
+	struct nfs_fh *		fh;
+};
+
+/*
+ * Obtain an NFS file handle for the given host and path
+ */
+int
+nfsroot_mount(struct sockaddr_in *addr, char *path, struct nfs_fh *fh,
+		int version, int protocol)
+{
+	struct rpc_clnt		*mnt_clnt;
+	struct mnt_fhstatus	result = { 0, fh };
+	char			hostname[32];
+	int			status;
+	int			call;
+
+	dprintk("NFS:      nfs_mount(%08x:%s)\n",
+			(unsigned)ntohl(addr->sin_addr.s_addr), path);
+
+	sprintf(hostname, "%u.%u.%u.%u", NIPQUAD(addr->sin_addr.s_addr));
+	if (!(mnt_clnt = mnt_create(hostname, addr, version, protocol)))
+		return -EACCES;
+
+	call = (version == NFS_MNT3_VERSION)?  MOUNTPROC3_MNT : MNTPROC_MNT;
+	status = rpc_call(mnt_clnt, call, path, &result, 0);
+	return status < 0? status : (result.status? -EACCES : 0);
+}
+
+static struct rpc_clnt *
+mnt_create(char *hostname, struct sockaddr_in *srvaddr, int version,
+		int protocol)
+{
+	struct rpc_xprt	*xprt;
+	struct rpc_clnt	*clnt;
+
+	if (!(xprt = xprt_create_proto(protocol, srvaddr, NULL)))
+		return NULL;
+
+	clnt = rpc_create_client(xprt, hostname,
+				&mnt_program, version,
+				RPC_AUTH_NULL);
+	if (!clnt) {
+		xprt_destroy(xprt);
+	} else {
+		clnt->cl_softrtry = 1;
+		clnt->cl_chatty   = 1;
+		clnt->cl_oneshot  = 1;
+		clnt->cl_intr = 1;
+	}
+	return clnt;
+}
+
+/*
+ * XDR encode/decode functions for MOUNT
+ */
+static int
+xdr_error(struct rpc_rqst *req, u32 *p, void *dummy)
+{
+	return -EIO;
+}
+
+static int
+xdr_encode_dirpath(struct rpc_rqst *req, u32 *p, const char *path)
+{
+	p = xdr_encode_string(p, path);
+
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+static int
+xdr_decode_fhstatus(struct rpc_rqst *req, u32 *p, struct mnt_fhstatus *res)
+{
+	struct nfs_fh *fh = res->fh;
+
+	memset((void *)fh, 0, sizeof(*fh));
+	if ((res->status = ntohl(*p++)) == 0) {
+		fh->size = NFS2_FHSIZE;
+		memcpy(fh->data, p, NFS2_FHSIZE);
+	}
+	return 0;
+}
+
+static int
+xdr_decode_fhstatus3(struct rpc_rqst *req, u32 *p, struct mnt_fhstatus *res)
+{
+	struct nfs_fh *fh = res->fh;
+
+	memset((void *)fh, 0, sizeof(*fh));
+	if ((res->status = ntohl(*p++)) == 0) {
+		int size = ntohl(*p++);
+		if (size <= NFS3_FHSIZE) {
+			fh->size = size;
+			memcpy(fh->data, p, size);
+		} else
+			res->status = -EBADHANDLE;
+	}
+	return 0;
+}
+
+#define MNT_dirpath_sz		(1 + 256)
+#define MNT_fhstatus_sz		(1 + 8)
+
+static struct rpc_procinfo	mnt_procedures[2] = {
+	{ "mnt_null",
+		(kxdrproc_t) xdr_error,	
+		(kxdrproc_t) xdr_error,	0, 0 },
+	{ "mnt_mount",
+		(kxdrproc_t) xdr_encode_dirpath,	
+		(kxdrproc_t) xdr_decode_fhstatus,
+		MNT_dirpath_sz << 2, 0 },
+};
+
+static struct rpc_procinfo mnt3_procedures[2] = {
+	{ "mnt3_null",
+		(kxdrproc_t) xdr_error,
+		(kxdrproc_t) xdr_error, 0, 0 },
+	{ "mnt3_mount",
+		(kxdrproc_t) xdr_encode_dirpath,
+		(kxdrproc_t) xdr_decode_fhstatus3,
+		MNT_dirpath_sz << 2, 0 },
+};
+
+
+static struct rpc_version	mnt_version1 = {
+	1, 2, mnt_procedures
+};
+
+static struct rpc_version       mnt_version3 = {
+	3, 2, mnt3_procedures
+};
+
+static struct rpc_version *	mnt_version[] = {
+	NULL,
+	&mnt_version1,
+	NULL,
+	&mnt_version3,
+};
+
+static struct rpc_stat		mnt_stats;
+
+struct rpc_program	mnt_program = {
+	"mount",
+	NFS_MNT_PROGRAM,
+	sizeof(mnt_version)/sizeof(mnt_version[0]),
+	mnt_version,
+	&mnt_stats,
+};
diff --git a/fs/nfs/nfs2xdr.c b/fs/nfs/nfs2xdr.c
new file mode 100644
index 00000000000000..19f2f2885538b6
--- /dev/null
+++ b/fs/nfs/nfs2xdr.c
@@ -0,0 +1,729 @@
+/*
+ * linux/fs/nfs/nfs2xdr.c
+ *
+ * XDR functions to encode/decode NFS RPC arguments and results.
+ *
+ * Copyright (C) 1992, 1993, 1994  Rick Sladkey
+ * Copyright (C) 1996 Olaf Kirch
+ * 04 Aug 1998  Ion Badulescu <ionut@cs.columbia.edu>
+ * 		FIFO's need special handling in NFSv2
+ */
+
+#include <linux/param.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/utsname.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/in.h>
+#include <linux/pagemap.h>
+#include <linux/proc_fs.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/nfs.h>
+#include <linux/nfs2.h>
+#include <linux/nfs_fs.h>
+
+#define NFSDBG_FACILITY		NFSDBG_XDR
+/* #define NFS_PARANOIA 1 */
+
+extern int			nfs_stat_to_errno(int stat);
+
+/* Mapping from NFS error code to "errno" error code. */
+#define errno_NFSERR_IO		EIO
+
+/*
+ * Declare the space requirements for NFS arguments and replies as
+ * number of 32bit-words
+ */
+#define NFS_fhandle_sz		8
+#define NFS_sattr_sz		8
+#define NFS_filename_sz		1+(NFS2_MAXNAMLEN>>2)
+#define NFS_path_sz		1+(NFS2_MAXPATHLEN>>2)
+#define NFS_fattr_sz		17
+#define NFS_info_sz		5
+#define NFS_entry_sz		NFS_filename_sz+3
+
+#define NFS_enc_void_sz		0
+#define NFS_diropargs_sz	NFS_fhandle_sz+NFS_filename_sz
+#define NFS_sattrargs_sz	NFS_fhandle_sz+NFS_sattr_sz
+#define NFS_readlinkargs_sz	NFS_fhandle_sz
+#define NFS_readargs_sz		NFS_fhandle_sz+3
+#define NFS_writeargs_sz	NFS_fhandle_sz+4
+#define NFS_createargs_sz	NFS_diropargs_sz+NFS_sattr_sz
+#define NFS_renameargs_sz	NFS_diropargs_sz+NFS_diropargs_sz
+#define NFS_linkargs_sz		NFS_fhandle_sz+NFS_diropargs_sz
+#define NFS_symlinkargs_sz	NFS_diropargs_sz+NFS_path_sz+NFS_sattr_sz
+#define NFS_readdirargs_sz	NFS_fhandle_sz+2
+
+#define NFS_dec_void_sz		0
+#define NFS_attrstat_sz		1+NFS_fattr_sz
+#define NFS_diropres_sz		1+NFS_fhandle_sz+NFS_fattr_sz
+#define NFS_readlinkres_sz	1
+#define NFS_readres_sz		1+NFS_fattr_sz+1
+#define NFS_writeres_sz         NFS_attrstat_sz
+#define NFS_stat_sz		1
+#define NFS_readdirres_sz	1
+#define NFS_statfsres_sz	1+NFS_info_sz
+
+/*
+ * Common NFS XDR functions as inlines
+ */
+static inline u32 *
+xdr_encode_fhandle(u32 *p, struct nfs_fh *fhandle)
+{
+	memcpy(p, fhandle->data, NFS2_FHSIZE);
+	return p + XDR_QUADLEN(NFS2_FHSIZE);
+}
+
+static inline u32 *
+xdr_decode_fhandle(u32 *p, struct nfs_fh *fhandle)
+{
+	/* Zero handle first to allow comparisons */
+	memset(fhandle, 0, sizeof(*fhandle));
+	/* NFSv2 handles have a fixed length */
+	fhandle->size = NFS2_FHSIZE;
+	memcpy(fhandle->data, p, NFS2_FHSIZE);
+	return p + XDR_QUADLEN(NFS2_FHSIZE);
+}
+
+static inline u32*
+xdr_decode_time(u32 *p, u64 *timep)
+{
+	u64 tmp = (u64)ntohl(*p++) << 32;
+	*timep = tmp + (u64)ntohl(*p++);
+	return p;
+}
+
+static u32 *
+xdr_decode_fattr(u32 *p, struct nfs_fattr *fattr)
+{
+	fattr->type = (enum nfs_ftype) ntohl(*p++);
+	fattr->mode = ntohl(*p++);
+	fattr->nlink = ntohl(*p++);
+	fattr->uid = ntohl(*p++);
+	fattr->gid = ntohl(*p++);
+	fattr->size = ntohl(*p++);
+	fattr->du.nfs2.blocksize = ntohl(*p++);
+	fattr->rdev = ntohl(*p++);
+	fattr->du.nfs2.blocks = ntohl(*p++);
+	fattr->fsid = ntohl(*p++);
+	fattr->fileid = ntohl(*p++);
+	p = xdr_decode_time(p, &fattr->atime);
+	p = xdr_decode_time(p, &fattr->mtime);
+	p = xdr_decode_time(p, &fattr->ctime);
+	fattr->valid |= NFS_ATTR_FATTR;
+	if (fattr->type == NFCHR && fattr->rdev == NFS2_FIFO_DEV) {
+		fattr->type = NFFIFO;
+		fattr->mode = (fattr->mode & ~S_IFMT) | S_IFIFO;
+		fattr->rdev = 0;
+	}
+	return p;
+}
+
+#define SATTR(p, attr, flag, field) \
+        *p++ = (attr->ia_valid & flag) ? htonl(attr->field) : ~(u32) 0
+static inline u32 *
+xdr_encode_sattr(u32 *p, struct iattr *attr)
+{
+	SATTR(p, attr, ATTR_MODE, ia_mode);
+	SATTR(p, attr, ATTR_UID, ia_uid);
+	SATTR(p, attr, ATTR_GID, ia_gid);
+	SATTR(p, attr, ATTR_SIZE, ia_size);
+
+	if (attr->ia_valid & (ATTR_ATIME|ATTR_ATIME_SET)) {
+		*p++ = htonl(attr->ia_atime);
+		*p++ = 0;
+	} else {
+		*p++ = ~(u32) 0;
+		*p++ = ~(u32) 0;
+	}
+
+	if (attr->ia_valid & (ATTR_MTIME|ATTR_MTIME_SET)) {
+		*p++ = htonl(attr->ia_mtime);
+		*p++ = 0;
+	} else {
+		*p++ = ~(u32) 0;	
+		*p++ = ~(u32) 0;
+	}
+  	return p;
+}
+#undef SATTR
+
+/*
+ * NFS encode functions
+ */
+/*
+ * Encode void argument
+ */
+static int
+nfs_xdr_enc_void(struct rpc_rqst *req, u32 *p, void *dummy)
+{
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+/*
+ * Encode file handle argument
+ * GETATTR, READLINK, STATFS
+ */
+static int
+nfs_xdr_fhandle(struct rpc_rqst *req, u32 *p, struct nfs_fh *fh)
+{
+	p = xdr_encode_fhandle(p, fh);
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+/*
+ * Encode SETATTR arguments
+ */
+static int
+nfs_xdr_sattrargs(struct rpc_rqst *req, u32 *p, struct nfs_sattrargs *args)
+{
+	p = xdr_encode_fhandle(p, args->fh);
+	p = xdr_encode_sattr(p, args->sattr);
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+/*
+ * Encode directory ops argument
+ * LOOKUP, REMOVE, RMDIR
+ */
+static int
+nfs_xdr_diropargs(struct rpc_rqst *req, u32 *p, struct nfs_diropargs *args)
+{
+	p = xdr_encode_fhandle(p, args->fh);
+	p = xdr_encode_array(p, args->name, args->len);
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+/*
+ * Arguments to a READ call. Since we read data directly into the page
+ * cache, we also set up the reply iovec here so that iov[1] points
+ * exactly to the page we want to fetch.
+ */
+static int
+nfs_xdr_readargs(struct rpc_rqst *req, u32 *p, struct nfs_readargs *args)
+{
+	struct rpc_auth	*auth = req->rq_task->tk_auth;
+	unsigned int replen;
+	u32 offset = (u32)args->offset;
+	u32 count = args->count;
+
+	p = xdr_encode_fhandle(p, args->fh);
+	*p++ = htonl(offset);
+	*p++ = htonl(count);
+	*p++ = htonl(count);
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+
+	/* Inline the page array */
+	replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS_readres_sz) << 2;
+	xdr_inline_pages(&req->rq_rcv_buf, replen,
+			 args->pages, args->pgbase, count);
+	return 0;
+}
+
+/*
+ * Decode READ reply
+ */
+static int
+nfs_xdr_readres(struct rpc_rqst *req, u32 *p, struct nfs_readres *res)
+{
+	struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
+	struct iovec *iov = req->rq_rvec;
+	int	status, count, recvd, hdrlen;
+
+	if ((status = ntohl(*p++)))
+		return -nfs_stat_to_errno(status);
+	p = xdr_decode_fattr(p, res->fattr);
+
+	count = ntohl(*p++);
+	res->eof = 0;
+	if (rcvbuf->page_len) {
+		u32 end = page_offset(rcvbuf->pages[0]) + rcvbuf->page_base + count;
+		if (end >= res->fattr->size)
+			res->eof = 1;
+	}
+	hdrlen = (u8 *) p - (u8 *) iov->iov_base;
+	if (iov->iov_len < hdrlen) {
+		printk(KERN_WARNING "NFS: READ reply header overflowed:"
+				"length %d > %Zu\n", hdrlen, iov->iov_len);
+		return -errno_NFSERR_IO;
+	} else if (iov->iov_len != hdrlen) {
+		dprintk("NFS: READ header is short. iovec will be shifted.\n");
+		xdr_shift_buf(&req->rq_rcv_buf, iov->iov_len - hdrlen);
+	}
+
+	recvd = req->rq_received - hdrlen;
+	if (count > recvd) {
+		printk(KERN_WARNING "NFS: server cheating in read reply: "
+			"count %d > recvd %d\n", count, recvd);
+		count = recvd;
+		res->eof = 0;
+	}
+
+	dprintk("RPC:      readres OK count %d\n", count);
+	if (count < res->count)
+		res->count = count;
+
+	return count;
+}
+
+
+/*
+ * Write arguments. Splice the buffer to be written into the iovec.
+ */
+static int
+nfs_xdr_writeargs(struct rpc_rqst *req, u32 *p, struct nfs_writeargs *args)
+{
+	struct xdr_buf *sndbuf = &req->rq_snd_buf;
+	u32 offset = (u32)args->offset;
+	u32 count = args->count;
+
+	p = xdr_encode_fhandle(p, args->fh);
+	*p++ = htonl(offset);
+	*p++ = htonl(offset);
+	*p++ = htonl(count);
+	*p++ = htonl(count);
+	sndbuf->len = xdr_adjust_iovec(sndbuf->head, p);
+
+	/* Copy the page array */
+	xdr_encode_pages(sndbuf, args->pages, args->pgbase, count);
+	return 0;
+}
+
+/*
+ * Encode create arguments
+ * CREATE, MKDIR
+ */
+static int
+nfs_xdr_createargs(struct rpc_rqst *req, u32 *p, struct nfs_createargs *args)
+{
+	p = xdr_encode_fhandle(p, args->fh);
+	p = xdr_encode_array(p, args->name, args->len);
+	p = xdr_encode_sattr(p, args->sattr);
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+/*
+ * Encode RENAME arguments
+ */
+static int
+nfs_xdr_renameargs(struct rpc_rqst *req, u32 *p, struct nfs_renameargs *args)
+{
+	p = xdr_encode_fhandle(p, args->fromfh);
+	p = xdr_encode_array(p, args->fromname, args->fromlen);
+	p = xdr_encode_fhandle(p, args->tofh);
+	p = xdr_encode_array(p, args->toname, args->tolen);
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+/*
+ * Encode LINK arguments
+ */
+static int
+nfs_xdr_linkargs(struct rpc_rqst *req, u32 *p, struct nfs_linkargs *args)
+{
+	p = xdr_encode_fhandle(p, args->fromfh);
+	p = xdr_encode_fhandle(p, args->tofh);
+	p = xdr_encode_array(p, args->toname, args->tolen);
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+/*
+ * Encode SYMLINK arguments
+ */
+static int
+nfs_xdr_symlinkargs(struct rpc_rqst *req, u32 *p, struct nfs_symlinkargs *args)
+{
+	p = xdr_encode_fhandle(p, args->fromfh);
+	p = xdr_encode_array(p, args->fromname, args->fromlen);
+	p = xdr_encode_array(p, args->topath, args->tolen);
+	p = xdr_encode_sattr(p, args->sattr);
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+/*
+ * Encode arguments to readdir call
+ */
+static int
+nfs_xdr_readdirargs(struct rpc_rqst *req, u32 *p, struct nfs_readdirargs *args)
+{
+	struct rpc_task	*task = req->rq_task;
+	struct rpc_auth	*auth = task->tk_auth;
+	unsigned int replen;
+	u32 count = args->count;
+
+	/*
+	 * Some servers (e.g. HP OS 9.5) seem to expect the buffer size
+	 * to be in longwords ... check whether to convert the size.
+	 */
+	if (task->tk_client->cl_flags & NFS_CLNTF_BUFSIZE)
+		count = count >> 2;
+
+	p = xdr_encode_fhandle(p, args->fh);
+	*p++ = htonl(args->cookie);
+	*p++ = htonl(count); /* see above */
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+
+	/* Inline the page array */
+	replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS_readdirres_sz) << 2;
+	xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, 0, count);
+	return 0;
+}
+
+/*
+ * Decode the result of a readdir call.
+ * We're not really decoding anymore, we just leave the buffer untouched
+ * and only check that it is syntactically correct.
+ * The real decoding happens in nfs_decode_entry below, called directly
+ * from nfs_readdir for each entry.
+ */
+static int
+nfs_xdr_readdirres(struct rpc_rqst *req, u32 *p, void *dummy)
+{
+	struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
+	struct iovec *iov = rcvbuf->head;
+	struct page **page;
+	int hdrlen, recvd;
+	int status, nr;
+	unsigned int len, pglen;
+	u32 *end, *entry;
+
+	if ((status = ntohl(*p++)))
+		return -nfs_stat_to_errno(status);
+
+	hdrlen = (u8 *) p - (u8 *) iov->iov_base;
+	if (iov->iov_len < hdrlen) {
+		printk(KERN_WARNING "NFS: READDIR reply header overflowed:"
+				"length %d > %Zu\n", hdrlen, iov->iov_len);
+		return -errno_NFSERR_IO;
+	} else if (iov->iov_len != hdrlen) {
+		dprintk("NFS: READDIR header is short. iovec will be shifted.\n");
+		xdr_shift_buf(rcvbuf, iov->iov_len - hdrlen);
+	}
+
+	pglen = rcvbuf->page_len;
+	recvd = req->rq_received - hdrlen;
+	if (pglen > recvd)
+		pglen = recvd;
+	page = rcvbuf->pages;
+	p = kmap(*page);
+	entry = p;
+	end = (u32 *)((char *)p + pglen);
+	for (nr = 0; *p++; nr++) {
+		if (p + 2 > end)
+			goto short_pkt;
+		p++; /* fileid */
+		len = ntohl(*p++);
+		p += XDR_QUADLEN(len) + 1;	/* name plus cookie */
+		if (len > NFS2_MAXNAMLEN) {
+			printk(KERN_WARNING "NFS: giant filename in readdir (len 0x%x)!\n",
+						len);
+			goto err_unmap;
+		}
+		if (p + 2 > end)
+			goto short_pkt;
+		entry = p;
+	}
+	if (!nr && (entry[0] != 0 || entry[1] == 0))
+		goto short_pkt;
+ out:
+	kunmap(*page);
+	return nr;
+ short_pkt:
+	entry[0] = entry[1] = 0;
+	/* truncate listing ? */
+	if (!nr) {
+		printk(KERN_NOTICE "NFS: readdir reply truncated!\n");
+		entry[1] = 1;
+	}
+	goto out;
+err_unmap:
+	kunmap(*page);
+	return -errno_NFSERR_IO;
+}
+
+u32 *
+nfs_decode_dirent(u32 *p, struct nfs_entry *entry, int plus)
+{
+	if (!*p++) {
+		if (!*p)
+			return ERR_PTR(-EAGAIN);
+		entry->eof = 1;
+		return ERR_PTR(-EBADCOOKIE);
+	}
+
+	entry->ino	  = ntohl(*p++);
+	entry->len	  = ntohl(*p++);
+	entry->name	  = (const char *) p;
+	p		 += XDR_QUADLEN(entry->len);
+	entry->prev_cookie	  = entry->cookie;
+	entry->cookie	  = ntohl(*p++);
+	entry->eof	  = !p[0] && p[1];
+
+	return p;
+}
+
+/*
+ * NFS XDR decode functions
+ */
+/*
+ * Decode void reply
+ */
+static int
+nfs_xdr_dec_void(struct rpc_rqst *req, u32 *p, void *dummy)
+{
+	return 0;
+}
+
+/*
+ * Decode simple status reply
+ */
+static int
+nfs_xdr_stat(struct rpc_rqst *req, u32 *p, void *dummy)
+{
+	int	status;
+
+	if ((status = ntohl(*p++)) != 0)
+		status = -nfs_stat_to_errno(status);
+	return status;
+}
+
+/*
+ * Decode attrstat reply
+ * GETATTR, SETATTR, WRITE
+ */
+static int
+nfs_xdr_attrstat(struct rpc_rqst *req, u32 *p, struct nfs_fattr *fattr)
+{
+	int	status;
+
+	if ((status = ntohl(*p++)))
+		return -nfs_stat_to_errno(status);
+	xdr_decode_fattr(p, fattr);
+	return 0;
+}
+
+/*
+ * Decode diropres reply
+ * LOOKUP, CREATE, MKDIR
+ */
+static int
+nfs_xdr_diropres(struct rpc_rqst *req, u32 *p, struct nfs_diropok *res)
+{
+	int	status;
+
+	if ((status = ntohl(*p++)))
+		return -nfs_stat_to_errno(status);
+	p = xdr_decode_fhandle(p, res->fh);
+	xdr_decode_fattr(p, res->fattr);
+	return 0;
+}
+
+/*
+ * Encode READLINK args
+ */
+static int
+nfs_xdr_readlinkargs(struct rpc_rqst *req, u32 *p, struct nfs_readlinkargs *args)
+{
+	struct rpc_auth *auth = req->rq_task->tk_auth;
+	unsigned int replen;
+	u32 count = args->count - 4;
+
+	p = xdr_encode_fhandle(p, args->fh);
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+
+	/* Inline the page array */
+	replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS_readlinkres_sz) << 2;
+	xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, 0, count);
+	return 0;
+}
+
+/*
+ * Decode READLINK reply
+ */
+static int
+nfs_xdr_readlinkres(struct rpc_rqst *req, u32 *p, void *dummy)
+{
+	struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
+	struct iovec *iov = rcvbuf->head;
+	unsigned int hdrlen;
+	u32	*strlen, len;
+	char	*string;
+	int	status;
+
+	if ((status = ntohl(*p++)))
+		return -nfs_stat_to_errno(status);
+	hdrlen = (u8 *) p - (u8 *) iov->iov_base;
+	if (iov->iov_len > hdrlen) {
+		dprintk("NFS: READLINK header is short. iovec will be shifted.\n");
+		xdr_shift_buf(rcvbuf, iov->iov_len - hdrlen);
+	}
+
+	strlen = (u32*)kmap(rcvbuf->pages[0]);
+	/* Convert length of symlink */
+	len = ntohl(*strlen);
+	if (len > rcvbuf->page_len)
+		len = rcvbuf->page_len;
+	*strlen = len;
+	/* NULL terminate the string we got */
+	string = (char *)(strlen + 1);
+	string[len] = 0;
+	kunmap(rcvbuf->pages[0]);
+	return 0;
+}
+
+/*
+ * Decode WRITE reply
+ */
+static int
+nfs_xdr_writeres(struct rpc_rqst *req, u32 *p, struct nfs_writeres *res)
+{
+	res->verf->committed = NFS_FILE_SYNC;
+	return nfs_xdr_attrstat(req, p, res->fattr);
+}
+
+/*
+ * Decode STATFS reply
+ */
+static int
+nfs_xdr_statfsres(struct rpc_rqst *req, u32 *p, struct nfs_fsinfo *res)
+{
+	int	status;
+	u32	xfer_size;
+
+	if ((status = ntohl(*p++)))
+		return -nfs_stat_to_errno(status);
+
+	/* For NFSv2, we more or less have to guess the preferred
+	 * read/write/readdir sizes from the single 'transfer size'
+	 * value.
+	 */
+	xfer_size = ntohl(*p++);	/* tsize */
+	res->rtmax  = 8 * 1024;
+	res->rtpref = xfer_size;
+	res->rtmult = xfer_size;
+	res->wtmax  = 8 * 1024;
+	res->wtpref = xfer_size;
+	res->wtmult = xfer_size;
+	res->dtpref = PAGE_CACHE_SIZE;
+	res->maxfilesize = 0x7FFFFFFF;	/* just a guess */
+	res->bsize  = ntohl(*p++);
+
+	res->tbytes = ntohl(*p++) * res->bsize;
+	res->fbytes = ntohl(*p++) * res->bsize;
+	res->abytes = ntohl(*p++) * res->bsize;
+	res->tfiles = 0;
+	res->ffiles = 0;
+	res->afiles = 0;
+	res->namelen = 0;
+
+	return 0;
+}
+
+/*
+ * We need to translate between nfs status return values and
+ * the local errno values which may not be the same.
+ */
+static struct {
+	int stat;
+	int errno;
+} nfs_errtbl[] = {
+	{ NFS_OK,		0		},
+	{ NFSERR_PERM,		EPERM		},
+	{ NFSERR_NOENT,		ENOENT		},
+	{ NFSERR_IO,		errno_NFSERR_IO	},
+	{ NFSERR_NXIO,		ENXIO		},
+/*	{ NFSERR_EAGAIN,	EAGAIN		}, */
+	{ NFSERR_ACCES,		EACCES		},
+	{ NFSERR_EXIST,		EEXIST		},
+	{ NFSERR_XDEV,		EXDEV		},
+	{ NFSERR_NODEV,		ENODEV		},
+	{ NFSERR_NOTDIR,	ENOTDIR		},
+	{ NFSERR_ISDIR,		EISDIR		},
+	{ NFSERR_INVAL,		EINVAL		},
+	{ NFSERR_FBIG,		EFBIG		},
+	{ NFSERR_NOSPC,		ENOSPC		},
+	{ NFSERR_ROFS,		EROFS		},
+	{ NFSERR_MLINK,		EMLINK		},
+	{ NFSERR_NAMETOOLONG,	ENAMETOOLONG	},
+	{ NFSERR_NOTEMPTY,	ENOTEMPTY	},
+	{ NFSERR_DQUOT,		EDQUOT		},
+	{ NFSERR_STALE,		ESTALE		},
+	{ NFSERR_REMOTE,	EREMOTE		},
+#ifdef EWFLUSH
+	{ NFSERR_WFLUSH,	EWFLUSH		},
+#endif
+	{ NFSERR_BADHANDLE,	EBADHANDLE	},
+	{ NFSERR_NOT_SYNC,	ENOTSYNC	},
+	{ NFSERR_BAD_COOKIE,	EBADCOOKIE	},
+	{ NFSERR_NOTSUPP,	ENOTSUPP	},
+	{ NFSERR_TOOSMALL,	ETOOSMALL	},
+	{ NFSERR_SERVERFAULT,	ESERVERFAULT	},
+	{ NFSERR_BADTYPE,	EBADTYPE	},
+	{ NFSERR_JUKEBOX,	EJUKEBOX	},
+	{ -1,			EIO		}
+};
+
+/*
+ * Convert an NFS error code to a local one.
+ * This one is used jointly by NFSv2 and NFSv3.
+ */
+int
+nfs_stat_to_errno(int stat)
+{
+	int i;
+
+	for (i = 0; nfs_errtbl[i].stat != -1; i++) {
+		if (nfs_errtbl[i].stat == stat)
+			return nfs_errtbl[i].errno;
+	}
+	printk(KERN_ERR "nfs_stat_to_errno: bad nfs status return value: %d\n", stat);
+	return nfs_errtbl[i].errno;
+}
+
+#ifndef MAX
+# define MAX(a, b)	(((a) > (b))? (a) : (b))
+#endif
+
+#define PROC(proc, argtype, restype, timer)				\
+    { .p_procname =  "nfs_" #proc,					\
+      .p_encode   =  (kxdrproc_t) nfs_xdr_##argtype,			\
+      .p_decode   =  (kxdrproc_t) nfs_xdr_##restype,			\
+      .p_bufsiz   =  MAX(NFS_##argtype##_sz,NFS_##restype##_sz) << 2,	\
+      .p_timer    =  timer						\
+    }
+static struct rpc_procinfo	nfs_procedures[18] = {
+    PROC(null,		enc_void,	dec_void, 0),
+    PROC(getattr,	fhandle,	attrstat, 1),
+    PROC(setattr,	sattrargs,	attrstat, 0),
+    PROC(root,		enc_void,	dec_void, 0),
+    PROC(lookup,	diropargs,	diropres, 2),
+    PROC(readlink,	readlinkargs,	readlinkres, 3),
+    PROC(read,		readargs,	readres, 3),
+    PROC(writecache,	enc_void,	dec_void, 0),
+    PROC(write,		writeargs,	writeres, 4),
+    PROC(create,	createargs,	diropres, 0),
+    PROC(remove,	diropargs,	stat, 0),
+    PROC(rename,	renameargs,	stat, 0),
+    PROC(link,		linkargs,	stat, 0),
+    PROC(symlink,	symlinkargs,	stat, 0),
+    PROC(mkdir,		createargs,	diropres, 0),
+    PROC(rmdir,		diropargs,	stat, 0),
+    PROC(readdir,	readdirargs,	readdirres, 3),
+    PROC(statfs,	fhandle,	statfsres, 0),
+};
+
+struct rpc_version		nfs_version2 = {
+	2,
+	sizeof(nfs_procedures)/sizeof(nfs_procedures[0]),
+	nfs_procedures
+};
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
new file mode 100644
index 00000000000000..2519a62f05f53b
--- /dev/null
+++ b/fs/nfs/nfs3proc.c
@@ -0,0 +1,532 @@
+/*
+ *  linux/fs/nfs/nfs3proc.c
+ *
+ *  Client-side NFSv3 procedures stubs.
+ *
+ *  Copyright (C) 1997, Olaf Kirch
+ */
+
+#include <linux/mm.h>
+#include <linux/utsname.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/nfs.h>
+#include <linux/nfs3.h>
+#include <linux/nfs_fs.h>
+
+#define NFSDBG_FACILITY		NFSDBG_PROC
+
+/* A wrapper to handle the EJUKEBOX error message */
+static int
+nfs3_rpc_wrapper(struct rpc_clnt *clnt, struct rpc_message *msg, int flags)
+{
+	sigset_t oldset;
+	int res;
+	rpc_clnt_sigmask(clnt, &oldset);
+	do {
+		res = rpc_call_sync(clnt, msg, flags);
+		if (res != -EJUKEBOX)
+			break;
+		set_current_state(TASK_INTERRUPTIBLE);
+		schedule_timeout(NFS_JUKEBOX_RETRY_TIME);
+		res = -ERESTARTSYS;
+	} while (!signalled());
+	rpc_clnt_sigunmask(clnt, &oldset);
+	return res;
+}
+
+static inline int
+nfs3_rpc_call_wrapper(struct rpc_clnt *clnt, u32 proc, void *argp, void *resp, int flags)
+{
+	struct rpc_message msg = { proc, argp, resp, NULL };
+	return nfs3_rpc_wrapper(clnt, &msg, flags);
+}
+
+#define rpc_call(clnt, proc, argp, resp, flags) \
+		nfs3_rpc_call_wrapper(clnt, proc, argp, resp, flags)
+#define rpc_call_sync(clnt, msg, flags) \
+		nfs3_rpc_wrapper(clnt, msg, flags)
+
+/*
+ * Bare-bones access to getattr: this is for nfs_read_super.
+ */
+static int
+nfs3_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
+		   struct nfs_fattr *fattr)
+{
+	int	status;
+
+	dprintk("NFS call  getroot\n");
+	fattr->valid = 0;
+	status = rpc_call(server->client, NFS3PROC_GETATTR, fhandle, fattr, 0);
+	dprintk("NFS reply getroot\n");
+	return status;
+}
+
+/*
+ * One function for each procedure in the NFS protocol.
+ */
+static int
+nfs3_proc_getattr(struct inode *inode, struct nfs_fattr *fattr)
+{
+	int	status;
+
+	dprintk("NFS call  getattr\n");
+	fattr->valid = 0;
+	status = rpc_call(NFS_CLIENT(inode), NFS3PROC_GETATTR,
+			  NFS_FH(inode), fattr, 0);
+	dprintk("NFS reply getattr\n");
+	return status;
+}
+
+static int
+nfs3_proc_setattr(struct inode *inode, struct nfs_fattr *fattr,
+			struct iattr *sattr)
+{
+	struct nfs3_sattrargs	arg = { NFS_FH(inode), sattr, 0, 0 };
+	int	status;
+
+	dprintk("NFS call  setattr\n");
+	fattr->valid = 0;
+	status = rpc_call(NFS_CLIENT(inode), NFS3PROC_SETATTR, &arg, fattr, 0);
+	dprintk("NFS reply setattr\n");
+	return status;
+}
+
+static int
+nfs3_proc_lookup(struct inode *dir, struct qstr *name,
+		 struct nfs_fh *fhandle, struct nfs_fattr *fattr)
+{
+	struct nfs_fattr	dir_attr;
+	struct nfs3_diropargs	arg = { NFS_FH(dir), name->name, name->len };
+	struct nfs3_diropres	res = { &dir_attr, fhandle, fattr };
+	int			status;
+
+	dprintk("NFS call  lookup %s\n", name->name);
+	dir_attr.valid = 0;
+	fattr->valid = 0;
+	status = rpc_call(NFS_CLIENT(dir), NFS3PROC_LOOKUP, &arg, &res, 0);
+	if (status >= 0 && !(fattr->valid & NFS_ATTR_FATTR))
+		status = rpc_call(NFS_CLIENT(dir), NFS3PROC_GETATTR,
+			 fhandle, fattr, 0);
+	dprintk("NFS reply lookup: %d\n", status);
+	if (status >= 0)
+		status = nfs_refresh_inode(dir, &dir_attr);
+	return status;
+}
+
+static int
+nfs3_proc_access(struct inode *inode, int mode, int ruid)
+{
+	struct nfs_fattr	fattr;
+	struct nfs3_accessargs	arg = { NFS_FH(inode), 0 };
+	struct nfs3_accessres	res = { &fattr, 0 };
+	int	status, flags;
+
+	dprintk("NFS call  access\n");
+	fattr.valid = 0;
+
+	if (mode & MAY_READ)
+		arg.access |= NFS3_ACCESS_READ;
+	if (S_ISDIR(inode->i_mode)) {
+		if (mode & MAY_WRITE)
+			arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE;
+		if (mode & MAY_EXEC)
+			arg.access |= NFS3_ACCESS_LOOKUP;
+	} else {
+		if (mode & MAY_WRITE)
+			arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND;
+		if (mode & MAY_EXEC)
+			arg.access |= NFS3_ACCESS_EXECUTE;
+	}
+	flags = (ruid) ? RPC_CALL_REALUID : 0;
+	status = rpc_call(NFS_CLIENT(inode), NFS3PROC_ACCESS, &arg, &res, flags);
+	nfs_refresh_inode(inode, &fattr);
+	dprintk("NFS reply access\n");
+
+	if (status == 0 && (arg.access & res.access) != arg.access)
+		status = -EACCES;
+	return status;
+}
+
+static int
+nfs3_proc_readlink(struct inode *inode, struct page *page)
+{
+	struct nfs_fattr	fattr;
+	struct nfs3_readlinkargs args = { NFS_FH(inode), PAGE_CACHE_SIZE, &page };
+	int			status;
+
+	dprintk("NFS call  readlink\n");
+	fattr.valid = 0;
+	status = rpc_call(NFS_CLIENT(inode), NFS3PROC_READLINK,
+			&args, &fattr, 0);
+	nfs_refresh_inode(inode, &fattr);
+	dprintk("NFS reply readlink: %d\n", status);
+	return status;
+}
+
+static int
+nfs3_proc_read(struct inode *inode, struct rpc_cred *cred,
+	       struct nfs_fattr *fattr, int flags,
+	       unsigned int base, unsigned int count, struct page *page,
+	       int *eofp)
+{
+	u64			offset = page_offset(page) + base;
+	struct nfs_readargs	arg = { NFS_FH(inode), offset, count,
+					base, &page };
+	struct nfs_readres	res = { fattr, count, 0 };
+	struct rpc_message	msg = { NFS3PROC_READ, &arg, &res, cred };
+	int			status;
+
+	dprintk("NFS call  read %d @ %Ld\n", count, (long long)offset);
+	fattr->valid = 0;
+	status = rpc_call_sync(NFS_CLIENT(inode), &msg, flags);
+	dprintk("NFS reply read: %d\n", status);
+	*eofp = res.eof;
+	return status;
+}
+
+static int
+nfs3_proc_write(struct inode *inode, struct rpc_cred *cred,
+		struct nfs_fattr *fattr, int flags,
+		unsigned int base, unsigned int count,
+		struct page *page, struct nfs_writeverf *verf)
+{
+	u64			offset = page_offset(page) + base;
+	struct nfs_writeargs	arg = { NFS_FH(inode), offset, count,
+					NFS_FILE_SYNC, base, &page };
+	struct nfs_writeres	res = { fattr, verf, 0 };
+	struct rpc_message	msg = { NFS3PROC_WRITE, &arg, &res, cred };
+	int			status, rpcflags = 0;
+
+	dprintk("NFS call  write %d @ %Ld\n", count, (long long)offset);
+	fattr->valid = 0;
+	if (flags & NFS_RW_SWAP)
+		rpcflags |= NFS_RPC_SWAPFLAGS;
+	arg.stable = (flags & NFS_RW_SYNC) ? NFS_FILE_SYNC : NFS_UNSTABLE;
+
+	status = rpc_call_sync(NFS_CLIENT(inode), &msg, rpcflags);
+
+	dprintk("NFS reply read: %d\n", status);
+	return status < 0? status : res.count;
+}
+
+/*
+ * Create a regular file.
+ * For now, we don't implement O_EXCL.
+ */
+static int
+nfs3_proc_create(struct inode *dir, struct qstr *name, struct iattr *sattr,
+		 int flags, struct nfs_fh *fhandle, struct nfs_fattr *fattr)
+{
+	struct nfs_fattr	dir_attr;
+	struct nfs3_createargs	arg = { NFS_FH(dir), name->name, name->len,
+					sattr, 0, { 0, 0 } };
+	struct nfs3_diropres	res = { &dir_attr, fhandle, fattr };
+	int			status;
+
+	dprintk("NFS call  create %s\n", name->name);
+	arg.createmode = NFS3_CREATE_UNCHECKED;
+	if (flags & O_EXCL) {
+		arg.createmode  = NFS3_CREATE_EXCLUSIVE;
+		arg.verifier[0] = jiffies;
+		arg.verifier[1] = current->pid;
+	}
+
+again:
+	dir_attr.valid = 0;
+	fattr->valid = 0;
+	status = rpc_call(NFS_CLIENT(dir), NFS3PROC_CREATE, &arg, &res, 0);
+	nfs_refresh_inode(dir, &dir_attr);
+
+	/* If the server doesn't support the exclusive creation semantics,
+	 * try again with simple 'guarded' mode. */
+	if (status == NFSERR_NOTSUPP) {
+		switch (arg.createmode) {
+			case NFS3_CREATE_EXCLUSIVE:
+				arg.createmode = NFS3_CREATE_GUARDED;
+				break;
+
+			case NFS3_CREATE_GUARDED:
+				arg.createmode = NFS3_CREATE_UNCHECKED;
+				break;
+
+			case NFS3_CREATE_UNCHECKED:
+				goto exit;
+		}
+		goto again;
+	}
+
+exit:
+	dprintk("NFS reply create: %d\n", status);
+
+	/* When we created the file with exclusive semantics, make
+	 * sure we set the attributes afterwards. */
+	if (status == 0 && arg.createmode == NFS3_CREATE_EXCLUSIVE) {
+		struct nfs3_sattrargs	arg = { fhandle, sattr, 0, 0 };
+		dprintk("NFS call  setattr (post-create)\n");
+
+		/* Note: we could use a guarded setattr here, but I'm
+		 * not sure this buys us anything (and I'd have
+		 * to revamp the NFSv3 XDR code) */
+		fattr->valid = 0;
+		status = rpc_call(NFS_CLIENT(dir), NFS3PROC_SETATTR,
+						&arg, fattr, 0);
+		dprintk("NFS reply setattr (post-create): %d\n", status);
+	}
+
+	return status;
+}
+
+static int
+nfs3_proc_remove(struct inode *dir, struct qstr *name)
+{
+	struct nfs_fattr	dir_attr;
+	struct nfs3_diropargs	arg = { NFS_FH(dir), name->name, name->len };
+	struct rpc_message	msg = { NFS3PROC_REMOVE, &arg, &dir_attr, NULL };
+	int			status;
+
+	dprintk("NFS call  remove %s\n", name->name);
+	dir_attr.valid = 0;
+	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
+	nfs_refresh_inode(dir, &dir_attr);
+	dprintk("NFS reply remove: %d\n", status);
+	return status;
+}
+
+static int
+nfs3_proc_unlink_setup(struct rpc_message *msg, struct dentry *dir, struct qstr *name)
+{
+	struct nfs3_diropargs	*arg;
+	struct nfs_fattr	*res;
+	struct unlinkxdr {
+		struct nfs3_diropargs arg;
+		struct nfs_fattr res;
+	} *ptr;
+
+	ptr = (struct unlinkxdr *)kmalloc(sizeof(*ptr), GFP_KERNEL);
+	if (!ptr)
+		return -ENOMEM;
+	arg = &ptr->arg;
+	res = &ptr->res;
+	arg->fh = NFS_FH(dir->d_inode);
+	arg->name = name->name;
+	arg->len = name->len;
+	res->valid = 0;
+	msg->rpc_proc = NFS3PROC_REMOVE;
+	msg->rpc_argp = arg;
+	msg->rpc_resp = res;
+	return 0;
+}
+
+static void
+nfs3_proc_unlink_done(struct dentry *dir, struct rpc_message *msg)
+{
+	struct nfs_fattr	*dir_attr;
+
+	if (msg->rpc_argp) {
+		dir_attr = (struct nfs_fattr*)msg->rpc_resp;
+		nfs_refresh_inode(dir->d_inode, dir_attr);
+		kfree(msg->rpc_argp);
+	}
+}
+
+static int
+nfs3_proc_rename(struct inode *old_dir, struct qstr *old_name,
+		 struct inode *new_dir, struct qstr *new_name)
+{
+	struct nfs_fattr	old_dir_attr, new_dir_attr;
+	struct nfs3_renameargs	arg = { NFS_FH(old_dir),
+					old_name->name, old_name->len,
+					NFS_FH(new_dir),
+					new_name->name, new_name->len };
+	struct nfs3_renameres	res = { &old_dir_attr, &new_dir_attr };
+	int			status;
+
+	dprintk("NFS call  rename %s -> %s\n", old_name->name, new_name->name);
+	old_dir_attr.valid = 0;
+	new_dir_attr.valid = 0;
+	status = rpc_call(NFS_CLIENT(old_dir), NFS3PROC_RENAME, &arg, &res, 0);
+	nfs_refresh_inode(old_dir, &old_dir_attr);
+	nfs_refresh_inode(new_dir, &new_dir_attr);
+	dprintk("NFS reply rename: %d\n", status);
+	return status;
+}
+
+static int
+nfs3_proc_link(struct inode *inode, struct inode *dir, struct qstr *name)
+{
+	struct nfs_fattr	dir_attr, fattr;
+	struct nfs3_linkargs	arg = { NFS_FH(inode), NFS_FH(dir),
+					name->name, name->len };
+	struct nfs3_linkres	res = { &dir_attr, &fattr };
+	int			status;
+
+	dprintk("NFS call  link %s\n", name->name);
+	dir_attr.valid = 0;
+	fattr.valid = 0;
+	status = rpc_call(NFS_CLIENT(inode), NFS3PROC_LINK, &arg, &res, 0);
+	nfs_refresh_inode(dir, &dir_attr);
+	nfs_refresh_inode(inode, &fattr);
+	dprintk("NFS reply link: %d\n", status);
+	return status;
+}
+
+static int
+nfs3_proc_symlink(struct inode *dir, struct qstr *name, struct qstr *path,
+		  struct iattr *sattr, struct nfs_fh *fhandle,
+		  struct nfs_fattr *fattr)
+{
+	struct nfs_fattr	dir_attr;
+	struct nfs3_symlinkargs	arg = { NFS_FH(dir), name->name, name->len,
+					path->name, path->len, sattr };
+	struct nfs3_diropres	res = { &dir_attr, fhandle, fattr };
+	int			status;
+
+	dprintk("NFS call  symlink %s -> %s\n", name->name, path->name);
+	dir_attr.valid = 0;
+	fattr->valid = 0;
+	status = rpc_call(NFS_CLIENT(dir), NFS3PROC_SYMLINK, &arg, &res, 0);
+	nfs_refresh_inode(dir, &dir_attr);
+	dprintk("NFS reply symlink: %d\n", status);
+	return status;
+}
+
+static int
+nfs3_proc_mkdir(struct inode *dir, struct qstr *name, struct iattr *sattr,
+		struct nfs_fh *fhandle, struct nfs_fattr *fattr)
+{
+	struct nfs_fattr	dir_attr;
+	struct nfs3_mkdirargs	arg = { NFS_FH(dir), name->name, name->len,
+					sattr };
+	struct nfs3_diropres	res = { &dir_attr, fhandle, fattr };
+	int			status;
+
+	dprintk("NFS call  mkdir %s\n", name->name);
+	dir_attr.valid = 0;
+	fattr->valid = 0;
+	status = rpc_call(NFS_CLIENT(dir), NFS3PROC_MKDIR, &arg, &res, 0);
+	nfs_refresh_inode(dir, &dir_attr);
+	dprintk("NFS reply mkdir: %d\n", status);
+	return status;
+}
+
+static int
+nfs3_proc_rmdir(struct inode *dir, struct qstr *name)
+{
+	struct nfs_fattr	dir_attr;
+	struct nfs3_diropargs	arg = { NFS_FH(dir), name->name, name->len };
+	int			status;
+
+	dprintk("NFS call  rmdir %s\n", name->name);
+	dir_attr.valid = 0;
+	status = rpc_call(NFS_CLIENT(dir), NFS3PROC_RMDIR, &arg, &dir_attr, 0);
+	nfs_refresh_inode(dir, &dir_attr);
+	dprintk("NFS reply rmdir: %d\n", status);
+	return status;
+}
+
+/*
+ * The READDIR implementation is somewhat hackish - we pass the user buffer
+ * to the encode function, which installs it in the receive iovec.
+ * The decode function itself doesn't perform any decoding, it just makes
+ * sure the reply is syntactically correct.
+ *
+ */
+static int
+nfs3_proc_readdir(struct inode *dir, struct rpc_cred *cred,
+		  u64 cookie, struct page *page, unsigned int count, int plus)
+{
+	struct nfs_fattr	dir_attr;
+	u32			*verf = NFS_COOKIEVERF(dir);
+	struct nfs3_readdirargs	arg = { NFS_FH(dir), cookie, {verf[0], verf[1]},
+	       				plus, count, &page };
+	struct nfs3_readdirres	res = { &dir_attr, verf, plus };
+	struct rpc_message	msg = { NFS3PROC_READDIR, &arg, &res, cred };
+	int			status;
+
+	dprintk("NFS call  readdir %d\n", (unsigned int) cookie);
+
+	dir_attr.valid = 0;
+	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
+	nfs_refresh_inode(dir, &dir_attr);
+	dprintk("NFS reply readdir: %d\n", status);
+	return status;
+}
+
+static int
+nfs3_proc_mknod(struct inode *dir, struct qstr *name, struct iattr *sattr,
+		dev_t rdev, struct nfs_fh *fh, struct nfs_fattr *fattr)
+{
+	struct nfs_fattr	dir_attr;
+	struct nfs3_mknodargs	arg = { NFS_FH(dir), name->name, name->len, 0,
+					sattr, rdev };
+	struct nfs3_diropres	res = { &dir_attr, fh, fattr };
+	int			status;
+
+	switch (sattr->ia_mode & S_IFMT) {
+	case S_IFBLK:	arg.type = NF3BLK;  break;
+	case S_IFCHR:	arg.type = NF3CHR;  break;
+	case S_IFIFO:	arg.type = NF3FIFO; break;
+	case S_IFSOCK:	arg.type = NF3SOCK; break;
+	default:	return -EINVAL;
+	}
+
+	dprintk("NFS call  mknod %s %x\n", name->name, rdev);
+	dir_attr.valid = 0;
+	fattr->valid = 0;
+	status = rpc_call(NFS_CLIENT(dir), NFS3PROC_MKNOD, &arg, &res, 0);
+	nfs_refresh_inode(dir, &dir_attr);
+	dprintk("NFS reply mknod: %d\n", status);
+	return status;
+}
+
+/*
+ * This is a combo call of fsstat and fsinfo
+ */
+static int
+nfs3_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle,
+		 struct nfs_fsinfo *info)
+{
+	int	status;
+
+	dprintk("NFS call  fsstat\n");
+	memset((char *)info, 0, sizeof(*info));
+	status = rpc_call(server->client, NFS3PROC_FSSTAT, fhandle, info, 0);
+	if (status < 0)
+		goto error;
+	status = rpc_call(server->client, NFS3PROC_FSINFO, fhandle, info, 0);
+
+error:
+	dprintk("NFS reply statfs: %d\n", status);
+	return status;
+}
+
+extern u32 *nfs3_decode_dirent(u32 *, struct nfs_entry *, int);
+
+struct nfs_rpc_ops	nfs_v3_clientops = {
+	3,			/* protocol version */
+	nfs3_proc_get_root,
+	nfs3_proc_getattr,
+	nfs3_proc_setattr,
+	nfs3_proc_lookup,
+	nfs3_proc_access,
+	nfs3_proc_readlink,
+	nfs3_proc_read,
+	nfs3_proc_write,
+	NULL,			/* commit */
+	nfs3_proc_create,
+	nfs3_proc_remove,
+	nfs3_proc_unlink_setup,
+	nfs3_proc_unlink_done,
+	nfs3_proc_rename,
+	nfs3_proc_link,
+	nfs3_proc_symlink,
+	nfs3_proc_mkdir,
+	nfs3_proc_rmdir,
+	nfs3_proc_readdir,
+	nfs3_proc_mknod,
+	nfs3_proc_statfs,
+	nfs3_decode_dirent,
+};
diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c
new file mode 100644
index 00000000000000..5606222f8f26b8
--- /dev/null
+++ b/fs/nfs/nfs3xdr.c
@@ -0,0 +1,1037 @@
+/*
+ * linux/fs/nfs/nfs3xdr.c
+ *
+ * XDR functions to encode/decode NFSv3 RPC arguments and results.
+ *
+ * Copyright (C) 1996, 1997 Olaf Kirch
+ */
+
+#include <linux/param.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/utsname.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/in.h>
+#include <linux/pagemap.h>
+#include <linux/proc_fs.h>
+#include <linux/kdev_t.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/nfs.h>
+#include <linux/nfs3.h>
+#include <linux/nfs_fs.h>
+
+#define NFSDBG_FACILITY		NFSDBG_XDR
+
+/* Mapping from NFS error code to "errno" error code. */
+#define errno_NFSERR_IO		EIO
+
+extern int			nfs_stat_to_errno(int);
+
+/*
+ * Declare the space requirements for NFS arguments and replies as
+ * number of 32bit-words
+ */
+#define NFS3_fhandle_sz		1+16
+#define NFS3_fh_sz		NFS3_fhandle_sz	/* shorthand */
+#define NFS3_sattr_sz		15
+#define NFS3_filename_sz	1+(NFS3_MAXNAMLEN>>2)
+#define NFS3_path_sz		1+(NFS3_MAXPATHLEN>>2)
+#define NFS3_fattr_sz		21
+#define NFS3_wcc_attr_sz		6
+#define NFS3_pre_op_attr_sz	1+NFS3_wcc_attr_sz
+#define NFS3_post_op_attr_sz	1+NFS3_fattr_sz
+#define NFS3_wcc_data_sz		NFS3_pre_op_attr_sz+NFS3_post_op_attr_sz
+#define NFS3_fsstat_sz		
+#define NFS3_fsinfo_sz		
+#define NFS3_pathconf_sz		
+#define NFS3_entry_sz		NFS3_filename_sz+3
+
+#define NFS3_enc_void_sz	0
+#define NFS3_sattrargs_sz	NFS3_fh_sz+NFS3_sattr_sz+3
+#define NFS3_diropargs_sz	NFS3_fh_sz+NFS3_filename_sz
+#define NFS3_accessargs_sz	NFS3_fh_sz+1
+#define NFS3_readlinkargs_sz	NFS3_fh_sz
+#define NFS3_readargs_sz	NFS3_fh_sz+3
+#define NFS3_writeargs_sz	NFS3_fh_sz+5
+#define NFS3_createargs_sz	NFS3_diropargs_sz+NFS3_sattr_sz
+#define NFS3_mkdirargs_sz	NFS3_diropargs_sz+NFS3_sattr_sz
+#define NFS3_symlinkargs_sz	NFS3_diropargs_sz+NFS3_path_sz+NFS3_sattr_sz
+#define NFS3_mknodargs_sz	NFS3_diropargs_sz+2+NFS3_sattr_sz
+#define NFS3_renameargs_sz	NFS3_diropargs_sz+NFS3_diropargs_sz
+#define NFS3_linkargs_sz		NFS3_fh_sz+NFS3_diropargs_sz
+#define NFS3_readdirargs_sz	NFS3_fh_sz+2
+#define NFS3_commitargs_sz	NFS3_fh_sz+3
+
+#define NFS3_dec_void_sz	0
+#define NFS3_attrstat_sz	1+NFS3_fattr_sz
+#define NFS3_wccstat_sz		1+NFS3_wcc_data_sz
+#define NFS3_lookupres_sz	1+NFS3_fh_sz+(2 * NFS3_post_op_attr_sz)
+#define NFS3_accessres_sz	1+NFS3_post_op_attr_sz+1
+#define NFS3_readlinkres_sz	1+NFS3_post_op_attr_sz
+#define NFS3_readres_sz		1+NFS3_post_op_attr_sz+3
+#define NFS3_writeres_sz	1+NFS3_wcc_data_sz+4
+#define NFS3_createres_sz	1+NFS3_fh_sz+NFS3_post_op_attr_sz+NFS3_wcc_data_sz
+#define NFS3_renameres_sz	1+(2 * NFS3_wcc_data_sz)
+#define NFS3_linkres_sz		1+NFS3_post_op_attr_sz+NFS3_wcc_data_sz
+#define NFS3_readdirres_sz	1+NFS3_post_op_attr_sz+2
+#define NFS3_fsstatres_sz	1+NFS3_post_op_attr_sz+13
+#define NFS3_fsinfores_sz	1+NFS3_post_op_attr_sz+12
+#define NFS3_pathconfres_sz	1+NFS3_post_op_attr_sz+6
+#define NFS3_commitres_sz	1+NFS3_wcc_data_sz+2
+
+/*
+ * Map file type to S_IFMT bits
+ */
+static struct {
+	unsigned int	mode;
+	unsigned int	nfs2type;
+} nfs_type2fmt[] = {
+      { 0,		NFNON	},
+      { S_IFREG,	NFREG	},
+      { S_IFDIR,	NFDIR	},
+      { S_IFBLK,	NFBLK	},
+      { S_IFCHR,	NFCHR	},
+      { S_IFLNK,	NFLNK	},
+      { S_IFSOCK,	NFSOCK	},
+      { S_IFIFO,	NFFIFO	},
+      { 0,		NFBAD	}
+};
+
+/*
+ * Common NFS XDR functions as inlines
+ */
+static inline u32 *
+xdr_encode_fhandle(u32 *p, struct nfs_fh *fh)
+{
+	*p++ = htonl(fh->size);
+	memcpy(p, fh->data, fh->size);
+	return p + XDR_QUADLEN(fh->size);
+}
+
+static inline u32 *
+xdr_decode_fhandle(u32 *p, struct nfs_fh *fh)
+{
+	/*
+	 * Zero all nonused bytes
+	 */
+	memset((u8 *)fh, 0, sizeof(*fh));
+	if ((fh->size = ntohl(*p++)) <= NFS3_FHSIZE) {
+		memcpy(fh->data, p, fh->size);
+		return p + XDR_QUADLEN(fh->size);
+	}
+	return NULL;
+}
+
+/*
+ * Encode/decode time.
+ * Since the VFS doesn't care for fractional times, we ignore the
+ * nanosecond field.
+ */
+static inline u32 *
+xdr_encode_time(u32 *p, time_t time)
+{
+	*p++ = htonl(time);
+	*p++ = 0;
+	return p;
+}
+
+static inline u32 *
+xdr_decode_time3(u32 *p, u64 *timep)
+{
+	u64 tmp = (u64)ntohl(*p++) << 32;
+	*timep = tmp + (u64)ntohl(*p++);
+	return p;
+}
+
+static inline u32 *
+xdr_encode_time3(u32 *p, u64 time)
+{
+	*p++ = htonl(time >> 32);
+	*p++ = htonl(time & 0xFFFFFFFF);
+	return p;
+}
+
+static u32 *
+xdr_decode_fattr(u32 *p, struct nfs_fattr *fattr)
+{
+	unsigned int	type;
+	int		fmode;
+
+	type = ntohl(*p++);
+	if (type >= NF3BAD)
+		type = NF3BAD;
+	fmode = nfs_type2fmt[type].mode;
+	fattr->type = nfs_type2fmt[type].nfs2type;
+	fattr->mode = (ntohl(*p++) & ~S_IFMT) | fmode;
+	fattr->nlink = ntohl(*p++);
+	fattr->uid = ntohl(*p++);
+	fattr->gid = ntohl(*p++);
+	p = xdr_decode_hyper(p, &fattr->size);
+	p = xdr_decode_hyper(p, &fattr->du.nfs3.used);
+	/* Turn remote device info into Linux-specific dev_t */
+	fattr->rdev = ntohl(*p++) << MINORBITS;
+	fattr->rdev |= ntohl(*p++) & MINORMASK;
+	p = xdr_decode_hyper(p, &fattr->fsid);
+	p = xdr_decode_hyper(p, &fattr->fileid);
+	p = xdr_decode_time3(p, &fattr->atime);
+	p = xdr_decode_time3(p, &fattr->mtime);
+	p = xdr_decode_time3(p, &fattr->ctime);
+
+	/* Update the mode bits */
+	fattr->valid |= (NFS_ATTR_FATTR | NFS_ATTR_FATTR_V3);
+	return p;
+}
+
+static inline u32 *
+xdr_encode_sattr(u32 *p, struct iattr *attr)
+{
+	if (attr->ia_valid & ATTR_MODE) {
+		*p++ = xdr_one;
+		*p++ = htonl(attr->ia_mode);
+	} else {
+		*p++ = xdr_zero;
+	}
+	if (attr->ia_valid & ATTR_UID) {
+		*p++ = xdr_one;
+		*p++ = htonl(attr->ia_uid);
+	} else {
+		*p++ = xdr_zero;
+	}
+	if (attr->ia_valid & ATTR_GID) {
+		*p++ = xdr_one;
+		*p++ = htonl(attr->ia_gid);
+	} else {
+		*p++ = xdr_zero;
+	}
+	if (attr->ia_valid & ATTR_SIZE) {
+		*p++ = xdr_one;
+		p = xdr_encode_hyper(p, (__u64) attr->ia_size);
+	} else {
+		*p++ = xdr_zero;
+	}
+	if (attr->ia_valid & ATTR_ATIME_SET) {
+		*p++ = xdr_two;
+		p = xdr_encode_time(p, attr->ia_atime);
+	} else if (attr->ia_valid & ATTR_ATIME) {
+		*p++ = xdr_one;
+	} else {
+		*p++ = xdr_zero;
+	}
+	if (attr->ia_valid & ATTR_MTIME_SET) {
+		*p++ = xdr_two;
+		p = xdr_encode_time(p, attr->ia_mtime);
+	} else if (attr->ia_valid & ATTR_MTIME) {
+		*p++ = xdr_one;
+	} else {
+		*p++ = xdr_zero;
+	}
+	return p;
+}
+
+static inline u32 *
+xdr_decode_wcc_attr(u32 *p, struct nfs_fattr *fattr)
+{
+	p = xdr_decode_hyper(p, &fattr->pre_size);
+	p = xdr_decode_time3(p, &fattr->pre_mtime);
+	p = xdr_decode_time3(p, &fattr->pre_ctime);
+	fattr->valid |= NFS_ATTR_WCC;
+	return p;
+}
+
+static inline u32 *
+xdr_decode_post_op_attr(u32 *p, struct nfs_fattr *fattr)
+{
+	if (*p++)
+		p = xdr_decode_fattr(p, fattr);
+	return p;
+}
+
+static inline u32 *
+xdr_decode_pre_op_attr(u32 *p, struct nfs_fattr *fattr)
+{
+	if (*p++)
+		return xdr_decode_wcc_attr(p, fattr);
+	return p;
+}
+
+
+static inline u32 *
+xdr_decode_wcc_data(u32 *p, struct nfs_fattr *fattr)
+{
+	p = xdr_decode_pre_op_attr(p, fattr);
+	return xdr_decode_post_op_attr(p, fattr);
+}
+
+/*
+ * NFS encode functions
+ */
+/*
+ * Encode void argument
+ */
+static int
+nfs3_xdr_enc_void(struct rpc_rqst *req, u32 *p, void *dummy)
+{
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+/*
+ * Encode file handle argument
+ */
+static int
+nfs3_xdr_fhandle(struct rpc_rqst *req, u32 *p, struct nfs_fh *fh)
+{
+	p = xdr_encode_fhandle(p, fh);
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+/*
+ * Encode SETATTR arguments
+ */
+static int
+nfs3_xdr_sattrargs(struct rpc_rqst *req, u32 *p, struct nfs3_sattrargs *args)
+{
+	p = xdr_encode_fhandle(p, args->fh);
+	p = xdr_encode_sattr(p, args->sattr);
+	*p++ = htonl(args->guard);
+	if (args->guard)
+		p = xdr_encode_time3(p, args->guardtime);
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+/*
+ * Encode directory ops argument
+ */
+static int
+nfs3_xdr_diropargs(struct rpc_rqst *req, u32 *p, struct nfs3_diropargs *args)
+{
+	p = xdr_encode_fhandle(p, args->fh);
+	p = xdr_encode_array(p, args->name, args->len);
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+/*
+ * Encode access() argument
+ */
+static int
+nfs3_xdr_accessargs(struct rpc_rqst *req, u32 *p, struct nfs3_accessargs *args)
+{
+	p = xdr_encode_fhandle(p, args->fh);
+	*p++ = htonl(args->access);
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+/*
+ * Arguments to a READ call. Since we read data directly into the page
+ * cache, we also set up the reply iovec here so that iov[1] points
+ * exactly to the page we want to fetch.
+ */
+static int
+nfs3_xdr_readargs(struct rpc_rqst *req, u32 *p, struct nfs_readargs *args)
+{
+	struct rpc_auth	*auth = req->rq_task->tk_auth;
+	unsigned int replen;
+	u32 count = args->count;
+
+	p = xdr_encode_fhandle(p, args->fh);
+	p = xdr_encode_hyper(p, args->offset);
+	*p++ = htonl(count);
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+
+	/* Inline the page array */
+	replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS3_readres_sz) << 2;
+	xdr_inline_pages(&req->rq_rcv_buf, replen,
+			 args->pages, args->pgbase, count);
+	return 0;
+}
+
+/*
+ * Write arguments. Splice the buffer to be written into the iovec.
+ */
+static int
+nfs3_xdr_writeargs(struct rpc_rqst *req, u32 *p, struct nfs_writeargs *args)
+{
+	struct xdr_buf *sndbuf = &req->rq_snd_buf;
+	u32 count = args->count;
+
+	p = xdr_encode_fhandle(p, args->fh);
+	p = xdr_encode_hyper(p, args->offset);
+	*p++ = htonl(count);
+	*p++ = htonl(args->stable);
+	*p++ = htonl(count);
+	sndbuf->len = xdr_adjust_iovec(sndbuf->head, p);
+
+	/* Copy the page array */
+	xdr_encode_pages(sndbuf, args->pages, args->pgbase, count);
+	return 0;
+}
+
+/*
+ * Encode CREATE arguments
+ */
+static int
+nfs3_xdr_createargs(struct rpc_rqst *req, u32 *p, struct nfs3_createargs *args)
+{
+	p = xdr_encode_fhandle(p, args->fh);
+	p = xdr_encode_array(p, args->name, args->len);
+
+	*p++ = htonl(args->createmode);
+	if (args->createmode == NFS3_CREATE_EXCLUSIVE) {
+		*p++ = args->verifier[0];
+		*p++ = args->verifier[1];
+	} else
+		p = xdr_encode_sattr(p, args->sattr);
+
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+/*
+ * Encode MKDIR arguments
+ */
+static int
+nfs3_xdr_mkdirargs(struct rpc_rqst *req, u32 *p, struct nfs3_mkdirargs *args)
+{
+	p = xdr_encode_fhandle(p, args->fh);
+	p = xdr_encode_array(p, args->name, args->len);
+	p = xdr_encode_sattr(p, args->sattr);
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+/*
+ * Encode SYMLINK arguments
+ */
+static int
+nfs3_xdr_symlinkargs(struct rpc_rqst *req, u32 *p, struct nfs3_symlinkargs *args)
+{
+	p = xdr_encode_fhandle(p, args->fromfh);
+	p = xdr_encode_array(p, args->fromname, args->fromlen);
+	p = xdr_encode_sattr(p, args->sattr);
+	p = xdr_encode_array(p, args->topath, args->tolen);
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+/*
+ * Encode MKNOD arguments
+ */
+static int
+nfs3_xdr_mknodargs(struct rpc_rqst *req, u32 *p, struct nfs3_mknodargs *args)
+{
+	p = xdr_encode_fhandle(p, args->fh);
+	p = xdr_encode_array(p, args->name, args->len);
+	*p++ = htonl(args->type);
+	p = xdr_encode_sattr(p, args->sattr);
+	if (args->type == NF3CHR || args->type == NF3BLK) {
+		*p++ = htonl(args->rdev >> MINORBITS);
+		*p++ = htonl(args->rdev & MINORMASK);
+	}
+
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+/*
+ * Encode RENAME arguments
+ */
+static int
+nfs3_xdr_renameargs(struct rpc_rqst *req, u32 *p, struct nfs3_renameargs *args)
+{
+	p = xdr_encode_fhandle(p, args->fromfh);
+	p = xdr_encode_array(p, args->fromname, args->fromlen);
+	p = xdr_encode_fhandle(p, args->tofh);
+	p = xdr_encode_array(p, args->toname, args->tolen);
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+/*
+ * Encode LINK arguments
+ */
+static int
+nfs3_xdr_linkargs(struct rpc_rqst *req, u32 *p, struct nfs3_linkargs *args)
+{
+	p = xdr_encode_fhandle(p, args->fromfh);
+	p = xdr_encode_fhandle(p, args->tofh);
+	p = xdr_encode_array(p, args->toname, args->tolen);
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+/*
+ * Encode arguments to readdir call
+ */
+static int
+nfs3_xdr_readdirargs(struct rpc_rqst *req, u32 *p, struct nfs3_readdirargs *args)
+{
+	struct rpc_auth	*auth = req->rq_task->tk_auth;
+	unsigned int replen;
+	u32 count = args->count;
+
+	p = xdr_encode_fhandle(p, args->fh);
+	p = xdr_encode_hyper(p, args->cookie);
+	*p++ = args->verf[0];
+	*p++ = args->verf[1];
+	if (args->plus) {
+		/* readdirplus: need dircount + buffer size.
+		 * We just make sure we make dircount big enough */
+		*p++ = htonl(count >> 3);
+	}
+	*p++ = htonl(count);
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+
+	/* Inline the page array */
+	replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS3_readdirres_sz) << 2;
+	xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, 0, count);
+	return 0;
+}
+
+/*
+ * Decode the result of a readdir call.
+ * We just check for syntactical correctness.
+ */
+static int
+nfs3_xdr_readdirres(struct rpc_rqst *req, u32 *p, struct nfs3_readdirres *res)
+{
+	struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
+	struct iovec *iov = rcvbuf->head;
+	struct page **page;
+	int hdrlen, recvd;
+	int status, nr;
+	unsigned int len, pglen;
+	u32 *entry, *end;
+
+	status = ntohl(*p++);
+	/* Decode post_op_attrs */
+	p = xdr_decode_post_op_attr(p, res->dir_attr);
+	if (status)
+		return -nfs_stat_to_errno(status);
+	/* Decode verifier cookie */
+	if (res->verf) {
+		res->verf[0] = *p++;
+		res->verf[1] = *p++;
+	} else {
+		p += 2;
+	}
+
+	hdrlen = (u8 *) p - (u8 *) iov->iov_base;
+	if (iov->iov_len < hdrlen) {
+		printk(KERN_WARNING "NFS: READDIR reply header overflowed:"
+				"length %d > %Zu\n", hdrlen, iov->iov_len);
+		return -errno_NFSERR_IO;
+	} else if (iov->iov_len != hdrlen) {
+		dprintk("NFS: READDIR header is short. iovec will be shifted.\n");
+		xdr_shift_buf(rcvbuf, iov->iov_len - hdrlen);
+	}
+
+	pglen = rcvbuf->page_len;
+	recvd = req->rq_received - hdrlen;
+	if (pglen > recvd)
+		pglen = recvd;
+	page = rcvbuf->pages;
+	p = kmap(*page);
+	end = (u32 *)((char *)p + pglen);
+	entry = p;
+	for (nr = 0; *p++; nr++) {
+		if (p + 3 > end)
+			goto short_pkt;
+		p += 2;				/* inode # */
+		len = ntohl(*p++);		/* string length */
+		p += XDR_QUADLEN(len) + 2;	/* name + cookie */
+		if (len > NFS3_MAXNAMLEN) {
+			printk(KERN_WARNING "NFS: giant filename in readdir (len %x)!\n",
+						len);
+			goto err_unmap;
+		}
+
+		if (res->plus) {
+			/* post_op_attr */
+			if (p > end)
+				goto short_pkt;
+			if (*p++) {
+				p += 21;
+				if (p > end)
+					goto short_pkt;
+			}
+			/* post_op_fh3 */
+			if (*p++) {
+				if (p > end)
+					goto short_pkt;
+				len = ntohl(*p++);
+				if (len > NFS3_FHSIZE) {
+					printk(KERN_WARNING "NFS: giant filehandle in "
+						"readdir (len %x)!\n", len);
+					goto err_unmap;
+				}
+				p += XDR_QUADLEN(len);
+			}
+		}
+
+		if (p + 2 > end)
+			goto short_pkt;
+		entry = p;
+	}
+	if (!nr && (entry[0] != 0 || entry[1] == 0))
+		goto short_pkt;
+ out:
+	kunmap(*page);
+	return nr;
+ short_pkt:
+	entry[0] = entry[1] = 0;
+	/* truncate listing ? */
+	if (!nr) {
+		printk(KERN_NOTICE "NFS: readdir reply truncated!\n");
+		entry[1] = 1;
+	}
+	goto out;
+err_unmap:
+	kunmap(*page);
+	return -errno_NFSERR_IO;
+}
+
+u32 *
+nfs3_decode_dirent(u32 *p, struct nfs_entry *entry, int plus)
+{
+	if (!*p++) {
+		if (!*p)
+			return ERR_PTR(-EAGAIN);
+		entry->eof = 1;
+		return ERR_PTR(-EBADCOOKIE);
+	}
+
+	p = xdr_decode_hyper(p, &entry->ino);
+	entry->len  = ntohl(*p++);
+	entry->name = (const char *) p;
+	p += XDR_QUADLEN(entry->len);
+	entry->prev_cookie = entry->cookie;
+	p = xdr_decode_hyper(p, &entry->cookie);
+
+	if (plus) {
+		struct nfs_fattr fattr;
+		p = xdr_decode_post_op_attr(p, &fattr);
+		/* In fact, a post_op_fh3: */
+		if (*p++) {
+			struct nfs_fh fh;
+			p = xdr_decode_fhandle(p, &fh);
+		}
+	}
+
+	entry->eof = !p[0] && p[1];
+	return p;
+}
+
+/*
+ * Encode COMMIT arguments
+ */
+static int
+nfs3_xdr_commitargs(struct rpc_rqst *req, u32 *p, struct nfs_writeargs *args)
+{
+	p = xdr_encode_fhandle(p, args->fh);
+	p = xdr_encode_hyper(p, args->offset);
+	*p++ = htonl(args->count);
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	return 0;
+}
+
+/*
+ * NFS XDR decode functions
+ */
+/*
+ * Decode void reply
+ */
+static int
+nfs3_xdr_dec_void(struct rpc_rqst *req, u32 *p, void *dummy)
+{
+	return 0;
+}
+
+/*
+ * Decode attrstat reply.
+ */
+static int
+nfs3_xdr_attrstat(struct rpc_rqst *req, u32 *p, struct nfs_fattr *fattr)
+{
+	int	status;
+
+	if ((status = ntohl(*p++)))
+		return -nfs_stat_to_errno(status);
+	xdr_decode_fattr(p, fattr);
+	return 0;
+}
+
+/*
+ * Decode status+wcc_data reply
+ * SATTR, REMOVE, RMDIR
+ */
+static int
+nfs3_xdr_wccstat(struct rpc_rqst *req, u32 *p, struct nfs_fattr *fattr)
+{
+	int	status;
+
+	if ((status = ntohl(*p++)))
+		status = -nfs_stat_to_errno(status);
+	xdr_decode_wcc_data(p, fattr);
+	return status;
+}
+
+/*
+ * Decode LOOKUP reply
+ */
+static int
+nfs3_xdr_lookupres(struct rpc_rqst *req, u32 *p, struct nfs3_diropres *res)
+{
+	int	status;
+
+	if ((status = ntohl(*p++))) {
+		status = -nfs_stat_to_errno(status);
+	} else {
+		if (!(p = xdr_decode_fhandle(p, res->fh)))
+			return -errno_NFSERR_IO;
+		p = xdr_decode_post_op_attr(p, res->fattr);
+	}
+	xdr_decode_post_op_attr(p, res->dir_attr);
+	return status;
+}
+
+/*
+ * Decode ACCESS reply
+ */
+static int
+nfs3_xdr_accessres(struct rpc_rqst *req, u32 *p, struct nfs3_accessres *res)
+{
+	int	status = ntohl(*p++);
+
+	p = xdr_decode_post_op_attr(p, res->fattr);
+	if (status)
+		return -nfs_stat_to_errno(status);
+	res->access = ntohl(*p++);
+	return 0;
+}
+
+static int
+nfs3_xdr_readlinkargs(struct rpc_rqst *req, u32 *p, struct nfs3_readlinkargs *args)
+{
+	struct rpc_auth *auth = req->rq_task->tk_auth;
+	unsigned int replen;
+	u32 count = args->count - 4;
+
+	p = xdr_encode_fhandle(p, args->fh);
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+
+	/* Inline the page array */
+	replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS3_readlinkres_sz) << 2;
+	xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, 0, count);
+	return 0;
+}
+
+/*
+ * Decode READLINK reply
+ */
+static int
+nfs3_xdr_readlinkres(struct rpc_rqst *req, u32 *p, struct nfs_fattr *fattr)
+{
+	struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
+	struct iovec *iov = rcvbuf->head;
+	unsigned int hdrlen;
+	u32	*strlen, len;
+	char	*string;
+	int	status;
+
+	status = ntohl(*p++);
+	p = xdr_decode_post_op_attr(p, fattr);
+
+	if (status != 0)
+		return -nfs_stat_to_errno(status);
+
+	hdrlen = (u8 *) p - (u8 *) iov->iov_base;
+	if (iov->iov_len > hdrlen) {
+		dprintk("NFS: READLINK header is short. iovec will be shifted.\n");
+		xdr_shift_buf(rcvbuf, iov->iov_len - hdrlen);
+	}
+
+	strlen = (u32*)kmap(rcvbuf->pages[0]);
+	/* Convert length of symlink */
+	len = ntohl(*strlen);
+	if (len > rcvbuf->page_len)
+		len = rcvbuf->page_len;
+	*strlen = len;
+	/* NULL terminate the string we got */
+	string = (char *)(strlen + 1);
+	string[len] = 0;
+	kunmap(rcvbuf->pages[0]);
+	return 0;
+}
+
+/*
+ * Decode READ reply
+ */
+static int
+nfs3_xdr_readres(struct rpc_rqst *req, u32 *p, struct nfs_readres *res)
+{
+	struct iovec *iov = req->rq_rvec;
+	int	status, count, ocount, recvd, hdrlen;
+
+	status = ntohl(*p++);
+	p = xdr_decode_post_op_attr(p, res->fattr);
+
+	if (status != 0)
+		return -nfs_stat_to_errno(status);
+
+	/* Decode reply could and EOF flag. NFSv3 is somewhat redundant
+	 * in that it puts the count both in the res struct and in the
+	 * opaque data count. */
+	count    = ntohl(*p++);
+	res->eof = ntohl(*p++);
+	ocount   = ntohl(*p++);
+
+	if (ocount != count) {
+		printk(KERN_WARNING "NFS: READ count doesn't match RPC opaque count.\n");
+		return -errno_NFSERR_IO;
+	}
+
+	hdrlen = (u8 *) p - (u8 *) iov->iov_base;
+	if (iov->iov_len < hdrlen) {
+		printk(KERN_WARNING "NFS: READ reply header overflowed:"
+				"length %d > %Zu\n", hdrlen, iov->iov_len);
+		return -errno_NFSERR_IO;
+	} else if (iov->iov_len != hdrlen) {
+		dprintk("NFS: READ header is short. iovec will be shifted.\n");
+		xdr_shift_buf(&req->rq_rcv_buf, iov->iov_len - hdrlen);
+	}
+
+	recvd = req->rq_received - hdrlen;
+	if (count > recvd) {
+		printk(KERN_WARNING "NFS: server cheating in read reply: "
+			"count %d > recvd %d\n", count, recvd);
+		count = recvd;
+		res->eof = 0;
+	}
+
+	if (count < res->count)
+		res->count = count;
+
+	return count;
+}
+
+/*
+ * Decode WRITE response
+ */
+static int
+nfs3_xdr_writeres(struct rpc_rqst *req, u32 *p, struct nfs_writeres *res)
+{
+	int	status;
+
+	status = ntohl(*p++);
+	p = xdr_decode_wcc_data(p, res->fattr);
+
+	if (status != 0)
+		return -nfs_stat_to_errno(status);
+
+	res->count = ntohl(*p++);
+	res->verf->committed = (enum nfs3_stable_how)ntohl(*p++);
+	res->verf->verifier[0] = *p++;
+	res->verf->verifier[1] = *p++;
+
+	return res->count;
+}
+
+/*
+ * Decode a CREATE response
+ */
+static int
+nfs3_xdr_createres(struct rpc_rqst *req, u32 *p, struct nfs3_diropres *res)
+{
+	int	status;
+
+	status = ntohl(*p++);
+	if (status == 0) {
+		if (*p++) {
+			if (!(p = xdr_decode_fhandle(p, res->fh)))
+				return -errno_NFSERR_IO;
+			p = xdr_decode_post_op_attr(p, res->fattr);
+		} else {
+			memset(res->fh, 0, sizeof(*res->fh));
+			/* Do decode post_op_attr but set it to NULL */
+			p = xdr_decode_post_op_attr(p, res->fattr);
+			res->fattr->valid = 0;
+		}
+	} else {
+		status = -nfs_stat_to_errno(status);
+	}
+	p = xdr_decode_wcc_data(p, res->dir_attr);
+	return status;
+}
+
+/*
+ * Decode RENAME reply
+ */
+static int
+nfs3_xdr_renameres(struct rpc_rqst *req, u32 *p, struct nfs3_renameres *res)
+{
+	int	status;
+
+	if ((status = ntohl(*p++)) != 0)
+		status = -nfs_stat_to_errno(status);
+	p = xdr_decode_wcc_data(p, res->fromattr);
+	p = xdr_decode_wcc_data(p, res->toattr);
+	return status;
+}
+
+/*
+ * Decode LINK reply
+ */
+static int
+nfs3_xdr_linkres(struct rpc_rqst *req, u32 *p, struct nfs3_linkres *res)
+{
+	int	status;
+
+	if ((status = ntohl(*p++)) != 0)
+		status = -nfs_stat_to_errno(status);
+	p = xdr_decode_post_op_attr(p, res->fattr);
+	p = xdr_decode_wcc_data(p, res->dir_attr);
+	return status;
+}
+
+/*
+ * Decode FSSTAT reply
+ */
+static int
+nfs3_xdr_fsstatres(struct rpc_rqst *req, u32 *p, struct nfs_fsinfo *res)
+{
+	struct nfs_fattr dummy;
+	int		status;
+
+	status = ntohl(*p++);
+
+	p = xdr_decode_post_op_attr(p, &dummy);
+	if (status != 0)
+		return -nfs_stat_to_errno(status);
+
+	p = xdr_decode_hyper(p, &res->tbytes);
+	p = xdr_decode_hyper(p, &res->fbytes);
+	p = xdr_decode_hyper(p, &res->abytes);
+	p = xdr_decode_hyper(p, &res->tfiles);
+	p = xdr_decode_hyper(p, &res->ffiles);
+	p = xdr_decode_hyper(p, &res->afiles);
+
+	/* ignore invarsec */
+	return 0;
+}
+
+/*
+ * Decode FSINFO reply
+ */
+static int
+nfs3_xdr_fsinfores(struct rpc_rqst *req, u32 *p, struct nfs_fsinfo *res)
+{
+	struct nfs_fattr dummy;
+	int		status;
+
+	status = ntohl(*p++);
+
+	p = xdr_decode_post_op_attr(p, &dummy);
+	if (status != 0)
+		return -nfs_stat_to_errno(status);
+
+	res->rtmax  = ntohl(*p++);
+	res->rtpref = ntohl(*p++);
+	res->rtmult = ntohl(*p++);
+	res->wtmax  = ntohl(*p++);
+	res->wtpref = ntohl(*p++);
+	res->wtmult = ntohl(*p++);
+	res->dtpref = ntohl(*p++);
+	p = xdr_decode_hyper(p, &res->maxfilesize);
+
+	/* ignore time_delta and properties */
+	return 0;
+}
+
+/*
+ * Decode PATHCONF reply
+ */
+static int
+nfs3_xdr_pathconfres(struct rpc_rqst *req, u32 *p, struct nfs_fsinfo *res)
+{
+	struct nfs_fattr dummy;
+	int		status;
+
+	status = ntohl(*p++);
+
+	p = xdr_decode_post_op_attr(p, &dummy);
+	if (status != 0)
+		return -nfs_stat_to_errno(status);
+	res->linkmax = ntohl(*p++);
+	res->namelen = ntohl(*p++);
+
+	/* ignore remaining fields */
+	return 0;
+}
+
+/*
+ * Decode COMMIT reply
+ */
+static int
+nfs3_xdr_commitres(struct rpc_rqst *req, u32 *p, struct nfs_writeres *res)
+{
+	int		status;
+
+	status = ntohl(*p++);
+	p = xdr_decode_wcc_data(p, res->fattr);
+	if (status != 0)
+		return -nfs_stat_to_errno(status);
+
+	res->verf->verifier[0] = *p++;
+	res->verf->verifier[1] = *p++;
+	return 0;
+}
+
+#ifndef MAX
+# define MAX(a, b)	(((a) > (b))? (a) : (b))
+#endif
+
+#define PROC(proc, argtype, restype, timer)				\
+    { .p_procname  = "nfs3_" #proc,					\
+      .p_encode    = (kxdrproc_t) nfs3_xdr_##argtype,			\
+      .p_decode    = (kxdrproc_t) nfs3_xdr_##restype,			\
+      .p_bufsiz    = MAX(NFS3_##argtype##_sz,NFS3_##restype##_sz) << 2,	\
+      .p_timer     = timer						\
+    }
+
+static struct rpc_procinfo	nfs3_procedures[22] = {
+  PROC(null,		enc_void,	dec_void, 0),
+  PROC(getattr,		fhandle,	attrstat, 1),
+  PROC(setattr, 	sattrargs,	wccstat, 0),
+  PROC(lookup,		diropargs,	lookupres, 2),
+  PROC(access,		accessargs,	accessres, 1),
+  PROC(readlink,	readlinkargs,	readlinkres, 3),
+  PROC(read,		readargs,	readres, 3),
+  PROC(write,		writeargs,	writeres, 4),
+  PROC(create,		createargs,	createres, 0),
+  PROC(mkdir,		mkdirargs,	createres, 0),
+  PROC(symlink,		symlinkargs,	createres, 0),
+  PROC(mknod,		mknodargs,	createres, 0),
+  PROC(remove,		diropargs,	wccstat, 0),
+  PROC(rmdir,		diropargs,	wccstat, 0),
+  PROC(rename,		renameargs,	renameres, 0),
+  PROC(link,		linkargs,	linkres, 0),
+  PROC(readdir,		readdirargs,	readdirres, 3),
+  PROC(readdirplus,	readdirargs,	readdirres, 3),
+  PROC(fsstat,		fhandle,	fsstatres, 0),
+  PROC(fsinfo,  	fhandle,	fsinfores, 0),
+  PROC(pathconf,	fhandle,	pathconfres, 0),
+  PROC(commit,		commitargs,	commitres, 5),
+};
+
+struct rpc_version		nfs_version3 = {
+	3,
+	sizeof(nfs3_procedures)/sizeof(nfs3_procedures[0]),
+	nfs3_procedures
+};
+
diff --git a/fs/nfs/nfsroot.c b/fs/nfs/nfsroot.c
new file mode 100644
index 00000000000000..ccd266bf37d891
--- /dev/null
+++ b/fs/nfs/nfsroot.c
@@ -0,0 +1,440 @@
+/*
+ *  $Id: nfsroot.c,v 1.45 1998/03/07 10:44:46 mj Exp $
+ *
+ *  Copyright (C) 1995, 1996  Gero Kuhlmann <gero@gkminix.han.de>
+ *
+ *  Allow an NFS filesystem to be mounted as root. The way this works is:
+ *     (1) Use the IP autoconfig mechanism to set local IP addresses and routes.
+ *     (2) Handle RPC negotiation with the system which replied to RARP or
+ *         was reported as a boot server by BOOTP or manually.
+ *     (3) The actual mounting is done later, when init() is running.
+ *
+ *
+ *	Changes:
+ *
+ *	Alan Cox	:	Removed get_address name clash with FPU.
+ *	Alan Cox	:	Reformatted a bit.
+ *	Gero Kuhlmann	:	Code cleanup
+ *	Michael Rausch  :	Fixed recognition of an incoming RARP answer.
+ *	Martin Mares	: (2.0)	Auto-configuration via BOOTP supported.
+ *	Martin Mares	:	Manual selection of interface & BOOTP/RARP.
+ *	Martin Mares	:	Using network routes instead of host routes,
+ *				allowing the default configuration to be used
+ *				for normal operation of the host.
+ *	Martin Mares	:	Randomized timer with exponential backoff
+ *				installed to minimize network congestion.
+ *	Martin Mares	:	Code cleanup.
+ *	Martin Mares	: (2.1)	BOOTP and RARP made configuration options.
+ *	Martin Mares	:	Server hostname generation fixed.
+ *	Gerd Knorr	:	Fixed wired inode handling
+ *	Martin Mares	: (2.2)	"0.0.0.0" addresses from command line ignored.
+ *	Martin Mares	:	RARP replies not tested for server address.
+ *	Gero Kuhlmann	: (2.3) Some bug fixes and code cleanup again (please
+ *				send me your new patches _before_ bothering
+ *				Linus so that I don' always have to cleanup
+ *				_afterwards_ - thanks)
+ *	Gero Kuhlmann	:	Last changes of Martin Mares undone.
+ *	Gero Kuhlmann	: 	RARP replies are tested for specified server
+ *				again. However, it's now possible to have
+ *				different RARP and NFS servers.
+ *	Gero Kuhlmann	:	"0.0.0.0" addresses from command line are
+ *				now mapped to INADDR_NONE.
+ *	Gero Kuhlmann	:	Fixed a bug which prevented BOOTP path name
+ *				from being used (thanks to Leo Spiekman)
+ *	Andy Walker	:	Allow to specify the NFS server in nfs_root
+ *				without giving a path name
+ *	Swen Thümmler	:	Allow to specify the NFS options in nfs_root
+ *				without giving a path name. Fix BOOTP request
+ *				for domainname (domainname is NIS domain, not
+ *				DNS domain!). Skip dummy devices for BOOTP.
+ *	Jacek Zapala	:	Fixed a bug which prevented server-ip address
+ *				from nfsroot parameter from being used.
+ *	Olaf Kirch	:	Adapted to new NFS code.
+ *	Jakub Jelinek	:	Free used code segment.
+ *	Marko Kohtala	:	Fixed some bugs.
+ *	Martin Mares	:	Debug message cleanup
+ *	Martin Mares	:	Changed to use the new generic IP layer autoconfig
+ *				code. BOOTP and RARP moved there.
+ *	Martin Mares	:	Default path now contains host name instead of
+ *				host IP address (but host name defaults to IP
+ *				address anyway).
+ *	Martin Mares	:	Use root_server_addr appropriately during setup.
+ *	Martin Mares	:	Rewrote parameter parsing, now hopefully giving
+ *				correct overriding.
+ *	Trond Myklebust :	Add in preliminary support for NFSv3 and TCP.
+ *				Fix bug in root_nfs_addr(). nfs_data.namlen
+ *				is NOT for the length of the hostname.
+ *	Hua Qin		:	Finish support for mounting root file system
+ *				via NFS over TCP.
+ */
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/nfs.h>
+#include <linux/nfs_fs.h>
+#include <linux/nfs_mount.h>
+#include <linux/in.h>
+#include <linux/major.h>
+#include <linux/utsname.h>
+#include <net/ipconfig.h>
+
+/* Define this to allow debugging output */
+#undef NFSROOT_DEBUG
+#define NFSDBG_FACILITY NFSDBG_ROOT
+
+/* Default path we try to mount. "%s" gets replaced by our IP address */
+#define NFS_ROOT		"/tftpboot/%s"
+
+/* Parameters passed from the kernel command line */
+static char nfs_root_name[256] __initdata = "";
+
+/* Address of NFS server */
+static __u32 servaddr __initdata = 0;
+
+/* Name of directory to mount */
+static char nfs_path[NFS_MAXPATHLEN] __initdata = { 0, };
+
+/* NFS-related data */
+static struct nfs_mount_data nfs_data __initdata = { 0, };/* NFS mount info */
+static int nfs_port __initdata = 0;		/* Port to connect to for NFS */
+static int mount_port __initdata = 0;		/* Mount daemon port number */
+
+
+/***************************************************************************
+
+			     Parsing of options
+
+ ***************************************************************************/
+
+/*
+ *  The following integer options are recognized
+ */
+static struct nfs_int_opts {
+	char *name;
+	int  *val;
+} root_int_opts[] __initdata = {
+	{ "port",	&nfs_port },
+	{ "rsize",	&nfs_data.rsize },
+	{ "wsize",	&nfs_data.wsize },
+	{ "timeo",	&nfs_data.timeo },
+	{ "retrans",	&nfs_data.retrans },
+	{ "acregmin",	&nfs_data.acregmin },
+	{ "acregmax",	&nfs_data.acregmax },
+	{ "acdirmin",	&nfs_data.acdirmin },
+	{ "acdirmax",	&nfs_data.acdirmax },
+	{ NULL,		NULL }
+};
+
+
+/*
+ *  And now the flag options
+ */
+static struct nfs_bool_opts {
+	char *name;
+	int  and_mask;
+	int  or_mask;
+} root_bool_opts[] __initdata = {
+	{ "soft",	~NFS_MOUNT_SOFT,	NFS_MOUNT_SOFT },
+	{ "hard",	~NFS_MOUNT_SOFT,	0 },
+	{ "intr",	~NFS_MOUNT_INTR,	NFS_MOUNT_INTR },
+	{ "nointr",	~NFS_MOUNT_INTR,	0 },
+	{ "posix",	~NFS_MOUNT_POSIX,	NFS_MOUNT_POSIX },
+	{ "noposix",	~NFS_MOUNT_POSIX,	0 },
+	{ "cto",	~NFS_MOUNT_NOCTO,	0 },
+	{ "nocto",	~NFS_MOUNT_NOCTO,	NFS_MOUNT_NOCTO },
+	{ "ac",		~NFS_MOUNT_NOAC,	0 },
+	{ "noac",	~NFS_MOUNT_NOAC,	NFS_MOUNT_NOAC },
+	{ "lock",	~NFS_MOUNT_NONLM,	0 },
+	{ "nolock",	~NFS_MOUNT_NONLM,	NFS_MOUNT_NONLM },
+#ifdef CONFIG_NFS_V3
+	{ "v2",		~NFS_MOUNT_VER3,	0 },
+	{ "v3",		~NFS_MOUNT_VER3,	NFS_MOUNT_VER3 },
+#endif
+	{ "udp",	~NFS_MOUNT_TCP,		0 },
+	{ "tcp",	~NFS_MOUNT_TCP,		NFS_MOUNT_TCP },
+	{ "broken_suid",~NFS_MOUNT_BROKEN_SUID,	NFS_MOUNT_BROKEN_SUID },
+	{ NULL,		0,			0 }
+};
+
+
+/*
+ *  Parse option string.
+ */
+static void __init root_nfs_parse(char *name, char *buf)
+{
+	char *options, *val, *cp;
+
+	if ((options = strchr(name, ','))) {
+		*options++ = 0;
+		cp = strtok(options, ",");
+		while (cp) {
+			if ((val = strchr(cp, '='))) {
+				struct nfs_int_opts *opts = root_int_opts;
+				*val++ = '\0';
+				while (opts->name && strcmp(opts->name, cp))
+					opts++;
+				if (opts->name)
+					*(opts->val) = (int) simple_strtoul(val, NULL, 10);
+			} else {
+				struct nfs_bool_opts *opts = root_bool_opts;
+				while (opts->name && strcmp(opts->name, cp))
+					opts++;
+				if (opts->name) {
+					nfs_data.flags &= opts->and_mask;
+					nfs_data.flags |= opts->or_mask;
+				}
+			}
+			cp = strtok(NULL, ",");
+		}
+	}
+	if (name[0] && strcmp(name, "default")) {
+		strncpy(buf, name, NFS_MAXPATHLEN-1);
+		buf[NFS_MAXPATHLEN-1] = 0;
+	}
+}
+
+
+/*
+ *  Prepare the NFS data structure and parse all options.
+ */
+static int __init root_nfs_name(char *name)
+{
+	char buf[NFS_MAXPATHLEN];
+	char *cp;
+
+	/* Set some default values */
+	memset(&nfs_data, 0, sizeof(nfs_data));
+	nfs_port          = -1;
+	nfs_data.version  = NFS_MOUNT_VERSION;
+	nfs_data.flags    = NFS_MOUNT_NONLM;	/* No lockd in nfs root yet */
+	nfs_data.rsize    = NFS_DEF_FILE_IO_BUFFER_SIZE;
+	nfs_data.wsize    = NFS_DEF_FILE_IO_BUFFER_SIZE;
+	nfs_data.bsize	  = 0;
+	nfs_data.timeo    = 7;
+	nfs_data.retrans  = 3;
+	nfs_data.acregmin = 3;
+	nfs_data.acregmax = 60;
+	nfs_data.acdirmin = 30;
+	nfs_data.acdirmax = 60;
+	strcpy(buf, NFS_ROOT);
+
+	/* Process options received from the remote server */
+	root_nfs_parse(root_server_path, buf);
+
+	/* Override them by options set on kernel command-line */
+	root_nfs_parse(name, buf);
+
+	cp = system_utsname.nodename;
+	if (strlen(buf) + strlen(cp) > NFS_MAXPATHLEN) {
+		printk(KERN_ERR "Root-NFS: Pathname for remote directory too long.\n");
+		return -1;
+	}
+	sprintf(nfs_path, buf, cp);
+
+	return 1;
+}
+
+
+/*
+ *  Get NFS server address.
+ */
+static int __init root_nfs_addr(void)
+{
+	if ((servaddr = root_server_addr) == INADDR_NONE) {
+		printk(KERN_ERR "Root-NFS: No NFS server available, giving up.\n");
+		return -1;
+	}
+
+	snprintf(nfs_data.hostname, sizeof(nfs_data.hostname),
+		 "%u.%u.%u.%u", NIPQUAD(servaddr));
+	return 0;
+}
+
+/*
+ *  Tell the user what's going on.
+ */
+#ifdef NFSROOT_DEBUG
+static void __init root_nfs_print(void)
+{
+	printk(KERN_NOTICE "Root-NFS: Mounting %s on server %s as root\n",
+		nfs_path, nfs_data.hostname);
+	printk(KERN_NOTICE "Root-NFS:     rsize = %d, wsize = %d, timeo = %d, retrans = %d\n",
+		nfs_data.rsize, nfs_data.wsize, nfs_data.timeo, nfs_data.retrans);
+	printk(KERN_NOTICE "Root-NFS:     acreg (min,max) = (%d,%d), acdir (min,max) = (%d,%d)\n",
+		nfs_data.acregmin, nfs_data.acregmax,
+		nfs_data.acdirmin, nfs_data.acdirmax);
+	printk(KERN_NOTICE "Root-NFS:     nfsd port = %d, mountd port = %d, flags = %08x\n",
+		nfs_port, mount_port, nfs_data.flags);
+}
+#endif
+
+
+int __init root_nfs_init(void)
+{
+#ifdef NFSROOT_DEBUG
+	nfs_debug |= NFSDBG_ROOT;
+#endif
+
+	/*
+	 * Decode the root directory path name and NFS options from
+	 * the kernel command line. This has to go here in order to
+	 * be able to use the client IP address for the remote root
+	 * directory (necessary for pure RARP booting).
+	 */
+	if (root_nfs_name(nfs_root_name) < 0 ||
+	    root_nfs_addr() < 0)
+		return -1;
+
+#ifdef NFSROOT_DEBUG
+	root_nfs_print();
+#endif
+
+	return 0;
+}
+
+
+/*
+ *  Parse NFS server and directory information passed on the kernel
+ *  command line.
+ */
+int __init nfs_root_setup(char *line)
+{
+	ROOT_DEV = MKDEV(NFS_MAJOR, NFS_MINOR);
+	if (line[0] == '/' || line[0] == ',' || (line[0] >= '0' && line[0] <= '9')) {
+		strncpy(nfs_root_name, line, sizeof(nfs_root_name));
+		nfs_root_name[sizeof(nfs_root_name)-1] = '\0';
+	} else {
+		int n = strlen(line) + strlen(NFS_ROOT);
+		if (n >= sizeof(nfs_root_name))
+			line[sizeof(nfs_root_name) - strlen(NFS_ROOT) - 1] = '\0';
+		sprintf(nfs_root_name, NFS_ROOT, line);
+	}
+	root_server_addr = root_nfs_parse_addr(nfs_root_name);
+	return 1;
+}
+
+__setup("nfsroot=", nfs_root_setup);
+
+/***************************************************************************
+
+	       Routines to actually mount the root directory
+
+ ***************************************************************************/
+
+/*
+ *  Construct sockaddr_in from address and port number.
+ */
+static inline void
+set_sockaddr(struct sockaddr_in *sin, __u32 addr, __u16 port)
+{
+	sin->sin_family = AF_INET;
+	sin->sin_addr.s_addr = addr;
+	sin->sin_port = port;
+}
+
+/*
+ *  Query server portmapper for the port of a daemon program.
+ */
+static int __init root_nfs_getport(int program, int version, int proto)
+{
+	struct sockaddr_in sin;
+
+	printk(KERN_NOTICE "Looking up port of RPC %d/%d on %u.%u.%u.%u\n",
+		program, version, NIPQUAD(servaddr));
+	set_sockaddr(&sin, servaddr, 0);
+	return rpc_getport_external(&sin, program, version, proto);
+}
+
+
+/*
+ *  Use portmapper to find mountd and nfsd port numbers if not overriden
+ *  by the user. Use defaults if portmapper is not available.
+ *  XXX: Is there any nfs server with no portmapper?
+ */
+static int __init root_nfs_ports(void)
+{
+	int port;
+	int nfsd_ver, mountd_ver;
+	int nfsd_port, mountd_port;
+	int proto;
+
+	if (nfs_data.flags & NFS_MOUNT_VER3) {
+		nfsd_ver = NFS3_VERSION;
+		mountd_ver = NFS_MNT3_VERSION;
+		nfsd_port = NFS_PORT;
+		mountd_port = NFS_MNT_PORT;
+	} else {
+		nfsd_ver = NFS2_VERSION;
+		mountd_ver = NFS_MNT_VERSION;
+		nfsd_port = NFS_PORT;
+		mountd_port = NFS_MNT_PORT;
+	}
+
+	proto = (nfs_data.flags & NFS_MOUNT_TCP) ? IPPROTO_TCP : IPPROTO_UDP;
+
+	if (nfs_port < 0) {
+		if ((port = root_nfs_getport(NFS_PROGRAM, nfsd_ver, proto)) < 0) {
+			printk(KERN_ERR "Root-NFS: Unable to get nfsd port "
+					"number from server, using default\n");
+			port = nfsd_port;
+		}
+		nfs_port = port;
+		dprintk("Root-NFS: Portmapper on server returned %d "
+			"as nfsd port\n", port);
+	}
+	nfs_port = htons(nfs_port);
+
+	if ((port = root_nfs_getport(NFS_MNT_PROGRAM, mountd_ver, proto)) < 0) {
+		printk(KERN_ERR "Root-NFS: Unable to get mountd port "
+				"number from server, using default\n");
+		port = mountd_port;
+	}
+	mount_port = htons(port);
+	dprintk("Root-NFS: mountd port is %d\n", port);
+
+	return 0;
+}
+
+
+/*
+ *  Get a file handle from the server for the directory which is to be
+ *  mounted.
+ */
+static int __init root_nfs_get_handle(void)
+{
+	struct sockaddr_in sin;
+	int status;
+	int protocol = (nfs_data.flags & NFS_MOUNT_TCP) ?
+					IPPROTO_TCP : IPPROTO_UDP;
+	int version = (nfs_data.flags & NFS_MOUNT_VER3) ?
+					NFS_MNT3_VERSION : NFS_MNT_VERSION;
+
+	set_sockaddr(&sin, servaddr, mount_port);
+	status = nfsroot_mount(&sin, nfs_path, &nfs_data.root,
+							version, protocol);
+	if (status < 0)
+		printk(KERN_ERR "Root-NFS: Server returned error %d "
+				"while mounting %s\n", status, nfs_path);
+
+	return status;
+}
+
+/*
+ *  Get the NFS port numbers and file handle, and return the prepared 'data'
+ *  argument for ->read_super() if everything went OK. Return NULL otherwise.
+ */
+void * __init nfs_root_data(void)
+{
+	if (root_nfs_init() < 0
+	 || root_nfs_ports() < 0
+	 || root_nfs_get_handle() < 0)
+		return NULL;
+	set_sockaddr((struct sockaddr_in *) &nfs_data.addr, servaddr, nfs_port);
+	return (void*)&nfs_data;
+}
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
new file mode 100644
index 00000000000000..4a7cd20663cf3b
--- /dev/null
+++ b/fs/nfs/pagelist.c
@@ -0,0 +1,500 @@
+/*
+ * linux/fs/nfs/pagelist.c
+ *
+ * A set of helper functions for managing NFS read and write requests.
+ * The main purpose of these routines is to provide support for the
+ * coalescing of several requests into a single RPC call.
+ *
+ * Copyright 2000, 2001 (c) Trond Myklebust <trond.myklebust@fys.uio.no>
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/slab.h>
+#include <linux/file.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/nfs3.h>
+#include <linux/nfs_page.h>
+#include <linux/nfs_fs.h>
+#include <linux/nfs_flushd.h>
+#include <linux/nfs_mount.h>
+
+#define NFS_PARANOIA 1
+
+/*
+ * Spinlock
+ */
+spinlock_t nfs_wreq_lock = SPIN_LOCK_UNLOCKED;
+
+static kmem_cache_t *nfs_page_cachep;
+
+static inline struct nfs_page *
+nfs_page_alloc(void)
+{
+	struct nfs_page	*p;
+	p = kmem_cache_alloc(nfs_page_cachep, SLAB_NOFS);
+	if (p) {
+		memset(p, 0, sizeof(*p));
+		INIT_LIST_HEAD(&p->wb_hash);
+		INIT_LIST_HEAD(&p->wb_list);
+		INIT_LIST_HEAD(&p->wb_lru);
+		init_waitqueue_head(&p->wb_wait);
+	}
+	return p;
+}
+
+static inline void
+nfs_page_free(struct nfs_page *p)
+{
+	kmem_cache_free(nfs_page_cachep, p);
+}
+
+static int nfs_try_to_free_pages(struct nfs_server *);
+
+/**
+ * nfs_create_request - Create an NFS read/write request.
+ * @cred: RPC credential to use
+ * @inode: inode to which the request is attached
+ * @page: page to write
+ * @offset: starting offset within the page for the write
+ * @count: number of bytes to read/write
+ *
+ * The page must be locked by the caller. This makes sure we never
+ * create two different requests for the same page, and avoids
+ * a possible deadlock when we reach the hard limit on the number
+ * of dirty pages.
+ * User should ensure it is safe to sleep in this function.
+ */
+struct nfs_page *
+nfs_create_request(struct rpc_cred *cred, struct inode *inode,
+		   struct page *page,
+		   unsigned int offset, unsigned int count)
+{
+	struct nfs_server *server = NFS_SERVER(inode);
+	struct nfs_reqlist	*cache = NFS_REQUESTLIST(inode);
+	struct nfs_page		*req;
+
+	/* Deal with hard limits.  */
+	for (;;) {
+		/* Prevent races by incrementing *before* we test */
+		atomic_inc(&cache->nr_requests);
+
+		/* If we haven't reached the local hard limit yet,
+		 * try to allocate the request struct */
+		if (atomic_read(&cache->nr_requests) <= MAX_REQUEST_HARD) {
+			req = nfs_page_alloc();
+			if (req != NULL)
+				break;
+		}
+
+		atomic_dec(&cache->nr_requests);
+
+		/* Try to free up at least one request in order to stay
+		 * below the hard limit
+		 */
+		if (nfs_try_to_free_pages(server))
+			continue;
+		if (signalled() && (server->flags & NFS_MOUNT_INTR))
+			return ERR_PTR(-ERESTARTSYS);
+		yield();
+	}
+
+	/* Initialize the request struct. Initially, we assume a
+	 * long write-back delay. This will be adjusted in
+	 * update_nfs_request below if the region is not locked. */
+	req->wb_page    = page;
+	page_cache_get(page);
+	req->wb_offset  = offset;
+	req->wb_bytes   = count;
+
+	if (cred)
+		req->wb_cred = get_rpccred(cred);
+	req->wb_inode   = inode;
+	req->wb_count   = 1;
+
+	return req;
+}
+
+/**
+ * nfs_clear_request - Free up all resources allocated to the request
+ * @req:
+ *
+ * Release all resources associated with a write request after it
+ * has completed.
+ */
+void nfs_clear_request(struct nfs_page *req)
+{
+	/* Release struct file or cached credential */
+	if (req->wb_file) {
+		fput(req->wb_file);
+		req->wb_file = NULL;
+	}
+	if (req->wb_cred) {
+		put_rpccred(req->wb_cred);
+		req->wb_cred = NULL;
+	}
+	if (req->wb_page) {
+		atomic_dec(&NFS_REQUESTLIST(req->wb_inode)->nr_requests);
+#ifdef NFS_PARANOIA
+		BUG_ON(atomic_read(&NFS_REQUESTLIST(req->wb_inode)->nr_requests) < 0);
+#endif
+		page_cache_release(req->wb_page);
+		req->wb_page = NULL;
+	}
+}
+
+
+/**
+ * nfs_release_request - Release the count on an NFS read/write request
+ * @req: request to release
+ *
+ * Note: Should never be called with the spinlock held!
+ */
+void
+nfs_release_request(struct nfs_page *req)
+{
+	spin_lock(&nfs_wreq_lock);
+	if (--req->wb_count) {
+		spin_unlock(&nfs_wreq_lock);
+		return;
+	}
+	__nfs_del_lru(req);
+	spin_unlock(&nfs_wreq_lock);
+
+#ifdef NFS_PARANOIA
+	BUG_ON(!list_empty(&req->wb_list));
+	BUG_ON(!list_empty(&req->wb_hash));
+	BUG_ON(NFS_WBACK_BUSY(req));
+#endif
+
+	/* Release struct file or cached credential */
+	nfs_clear_request(req);
+	nfs_page_free(req);
+}
+
+/**
+ * nfs_list_add_request - Insert a request into a sorted list
+ * @req: request
+ * @head: head of list into which to insert the request.
+ *
+ * Note that the wb_list is sorted by page index in order to facilitate
+ * coalescing of requests.
+ * We use an insertion sort that is optimized for the case of appended
+ * writes.
+ */
+void
+nfs_list_add_request(struct nfs_page *req, struct list_head *head)
+{
+	struct list_head *pos;
+	unsigned long pg_idx = page_index(req->wb_page);
+
+#ifdef NFS_PARANOIA
+	if (!list_empty(&req->wb_list)) {
+		printk(KERN_ERR "NFS: Add to list failed!\n");
+		BUG();
+	}
+#endif
+	list_for_each_prev(pos, head) {
+		struct nfs_page	*p = nfs_list_entry(pos);
+		if (page_index(p->wb_page) < pg_idx)
+			break;
+	}
+	list_add(&req->wb_list, pos);
+	req->wb_list_head = head;
+}
+
+/**
+ * nfs_wait_on_request - Wait for a request to complete.
+ * @req: request to wait upon.
+ *
+ * Interruptible by signals only if mounted with intr flag.
+ * The user is responsible for holding a count on the request.
+ */
+int
+nfs_wait_on_request(struct nfs_page *req)
+{
+	struct inode	*inode = req->wb_inode;
+        struct rpc_clnt	*clnt = NFS_CLIENT(inode);
+
+	if (!NFS_WBACK_BUSY(req))
+		return 0;
+	return nfs_wait_event(clnt, req->wb_wait, !NFS_WBACK_BUSY(req));
+}
+
+/**
+ * nfs_coalesce_requests - Split coalesced requests out from a list.
+ * @head: source list
+ * @dst: destination list
+ * @nmax: maximum number of requests to coalesce
+ *
+ * Moves a maximum of 'nmax' elements from one list to another.
+ * The elements are checked to ensure that they form a contiguous set
+ * of pages, and that they originated from the same file.
+ */
+int
+nfs_coalesce_requests(struct list_head *head, struct list_head *dst,
+		      unsigned int nmax)
+{
+	struct nfs_page		*req = NULL;
+	unsigned int		npages = 0;
+
+	while (!list_empty(head)) {
+		struct nfs_page	*prev = req;
+
+		req = nfs_list_entry(head->next);
+		if (prev) {
+			if (req->wb_cred != prev->wb_cred)
+				break;
+			if (page_index(req->wb_page) != page_index(prev->wb_page)+1)
+				break;
+
+			if (req->wb_offset != 0)
+				break;
+		}
+		nfs_list_remove_request(req);
+		nfs_list_add_request(req, dst);
+		npages++;
+		if (req->wb_offset + req->wb_bytes != PAGE_CACHE_SIZE)
+			break;
+		if (npages >= nmax)
+			break;
+	}
+	return npages;
+}
+
+/*
+ * nfs_scan_forward - Coalesce more requests
+ * @req: First request to add
+ * @dst: destination list
+ * @nmax: maximum number of requests to coalesce
+ *
+ * Tries to coalesce more requests by traversing the request's wb_list.
+ * Moves the resulting list into dst. Requests are guaranteed to be
+ * contiguous, and to originate from the same file.
+ */
+static int
+nfs_scan_forward(struct nfs_page *req, struct list_head *dst, int nmax)
+{
+	struct nfs_server *server = NFS_SERVER(req->wb_inode);
+	struct list_head *pos, *head = req->wb_list_head;
+	struct rpc_cred *cred = req->wb_cred;
+	unsigned long idx = page_index(req->wb_page) + 1;
+	int npages = 0;
+
+	for (pos = req->wb_list.next; nfs_lock_request(req); pos = pos->next) {
+		nfs_list_remove_request(req);
+		nfs_list_add_request(req, dst);
+		__nfs_del_lru(req);
+		__nfs_add_lru(&server->lru_busy, req);
+		npages++;
+		if (npages == nmax)
+			break;
+		if (pos == head)
+			break;
+		if (req->wb_offset + req->wb_bytes != PAGE_CACHE_SIZE)
+			break;
+		req = nfs_list_entry(pos);
+		if (page_index(req->wb_page) != idx++)
+			break;
+		if (req->wb_offset != 0)
+			break;
+		if (req->wb_cred != cred)
+			break;
+	}
+	return npages;
+}
+
+/**
+ * nfs_scan_lru - Scan one of the least recently used list
+ * @head: One of the NFS superblock lru lists
+ * @dst: Destination list
+ * @nmax: maximum number of requests to coalesce
+ *
+ * Scans one of the NFS superblock lru lists for upto nmax requests
+ * and returns them on a list. The requests are all guaranteed to be
+ * contiguous, originating from the same inode and the same file.
+ */
+int
+nfs_scan_lru(struct list_head *head, struct list_head *dst, int nmax)
+{
+	struct list_head *pos;
+	struct nfs_page *req;
+	int npages = 0;
+
+	list_for_each(pos, head) {
+		req = nfs_lru_entry(pos);
+		npages = nfs_scan_forward(req, dst, nmax);
+		if (npages)
+			break;
+	}
+	return npages;
+}
+
+/**
+ * nfs_scan_lru_timeout - Scan one of the superblock lru lists for timed out requests
+ * @head: One of the NFS superblock lru lists
+ * @dst: Destination list
+ * @nmax: maximum number of requests to coalesce
+ *
+ * Scans one of the NFS superblock lru lists for upto nmax requests
+ * and returns them on a list. The requests are all guaranteed to be
+ * contiguous, originating from the same inode and the same file.
+ * The first request on the destination list will be timed out, the
+ * others are not guaranteed to be so.
+ */
+int
+nfs_scan_lru_timeout(struct list_head *head, struct list_head *dst, int nmax)
+{
+	struct list_head *pos;
+	struct nfs_page *req;
+	int npages = 0;
+
+	list_for_each(pos, head) {
+		req = nfs_lru_entry(pos);
+		if (time_after(req->wb_timeout, jiffies))
+			break;
+		npages = nfs_scan_forward(req, dst, nmax);
+		if (npages)
+			break;
+	}
+	return npages;
+}
+
+/**
+ * nfs_scan_list - Scan a list for matching requests
+ * @head: One of the NFS inode request lists
+ * @dst: Destination list
+ * @idx_start: lower bound of page->index to scan
+ * @npages: idx_start + npages sets the upper bound to scan.
+ *
+ * Moves elements from one of the inode request lists.
+ * If the number of requests is set to 0, the entire address_space
+ * starting at index idx_start, is scanned.
+ * The requests are *not* checked to ensure that they form a contiguous set.
+ * You must be holding the nfs_wreq_lock when calling this function
+ */
+int
+nfs_scan_list(struct list_head *head, struct list_head *dst,
+	      unsigned long idx_start, unsigned int npages)
+{
+	struct list_head	*pos, *tmp;
+	struct nfs_page		*req;
+	unsigned long		idx_end;
+	int			res;
+
+	res = 0;
+	if (npages == 0)
+		idx_end = ~0;
+	else
+		idx_end = idx_start + npages - 1;
+
+	list_for_each_safe(pos, tmp, head) {
+		unsigned long pg_idx;
+
+		req = nfs_list_entry(pos);
+
+		pg_idx = page_index(req->wb_page);
+		if (pg_idx < idx_start)
+			continue;
+		if (pg_idx > idx_end)
+			break;
+
+		if (!nfs_lock_request(req))
+			continue;
+		nfs_list_remove_request(req);
+		nfs_list_add_request(req, dst);
+		__nfs_del_lru(req);
+		__nfs_add_lru(&NFS_SERVER(req->wb_inode)->lru_busy, req);
+		res++;
+	}
+	return res;
+}
+
+/*
+ * nfs_try_to_free_pages - Free up NFS read/write requests
+ * @server: The NFS superblock
+ *
+ * This function attempts to flush out NFS reads and writes in order
+ * to keep the hard limit on the total number of pending requests
+ * on a given NFS partition.
+ * Note: we first try to commit unstable writes, then flush out pending
+ *       reads, then finally the dirty pages.
+ *       The assumption is that this reflects the ordering from the fastest
+ *       to the slowest method for reclaiming requests.
+ */
+static int
+nfs_try_to_free_pages(struct nfs_server *server)
+{
+	LIST_HEAD(head);
+	struct nfs_page *req = NULL;
+	int nreq;
+
+	for (;;) {
+		if (req) {
+			int status = nfs_wait_on_request(req);
+			nfs_release_request(req);
+			if (status)
+				break;
+			req = NULL;
+		}
+		nreq = atomic_read(&server->rw_requests->nr_requests);
+		if (nreq < MAX_REQUEST_HARD)
+			return 1;
+		spin_lock(&nfs_wreq_lock);
+		/* Are there any busy RPC calls that might free up requests? */
+		if (!list_empty(&server->lru_busy)) {
+			req = nfs_lru_entry(server->lru_busy.next);
+			req->wb_count++;
+			__nfs_del_lru(req);
+			spin_unlock(&nfs_wreq_lock);
+			continue;
+		}
+
+#ifdef CONFIG_NFS_V3
+		/* Let's try to free up some completed NFSv3 unstable writes */
+		nfs_scan_lru_commit(server, &head);
+		if (!list_empty(&head)) {
+			spin_unlock(&nfs_wreq_lock);
+			nfs_commit_list(&head, 0);
+			continue;
+		}
+#endif
+		/* OK, so we try to free up some pending readaheads */
+		nfs_scan_lru_read(server, &head);
+		if (!list_empty(&head)) {
+			spin_unlock(&nfs_wreq_lock);
+			nfs_pagein_list(&head, server->rpages);
+			continue;
+		}
+		/* Last resort: we try to flush out single requests */
+		nfs_scan_lru_dirty(server, &head);
+		if (!list_empty(&head)) {
+			spin_unlock(&nfs_wreq_lock);
+			nfs_flush_list(&head, server->wpages, FLUSH_STABLE);
+			continue;
+		}
+		spin_unlock(&nfs_wreq_lock);
+		break;
+	}
+	/* We failed to free up requests */
+	return 0;
+}
+
+int nfs_init_nfspagecache(void)
+{
+	nfs_page_cachep = kmem_cache_create("nfs_page",
+					    sizeof(struct nfs_page),
+					    0, SLAB_HWCACHE_ALIGN,
+					    NULL, NULL);
+	if (nfs_page_cachep == NULL)
+		return -ENOMEM;
+
+	return 0;
+}
+
+void nfs_destroy_nfspagecache(void)
+{
+	if (kmem_cache_destroy(nfs_page_cachep))
+		printk(KERN_INFO "nfs_page: not all structures were freed\n");
+}
+
diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c
new file mode 100644
index 00000000000000..e7abac6be74a88
--- /dev/null
+++ b/fs/nfs/proc.c
@@ -0,0 +1,391 @@
+/*
+ *  linux/fs/nfs/proc.c
+ *
+ *  Copyright (C) 1992, 1993, 1994  Rick Sladkey
+ *
+ *  OS-independent nfs remote procedure call functions
+ *
+ *  Tuned by Alan Cox <A.Cox@swansea.ac.uk> for >3K buffers
+ *  so at last we can have decent(ish) throughput off a 
+ *  Sun server.
+ *
+ *  Coding optimized and cleaned up by Florian La Roche.
+ *  Note: Error returns are optimized for NFS_OK, which isn't translated via
+ *  nfs_stat_to_errno(), but happens to be already the right return code.
+ *
+ *  Also, the code currently doesn't check the size of the packet, when
+ *  it decodes the packet.
+ *
+ *  Feel free to fix it and mail me the diffs if it worries you.
+ *
+ *  Completely rewritten to support the new RPC call interface;
+ *  rewrote and moved the entire XDR stuff to xdr.c
+ *  --Olaf Kirch June 1996
+ *
+ *  The code below initializes all auto variables explicitly, otherwise
+ *  it will fail to work as a module (gcc generates a memset call for an
+ *  incomplete struct).
+ */
+
+#include <linux/types.h>
+#include <linux/param.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/utsname.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/in.h>
+#include <linux/pagemap.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/nfs.h>
+#include <linux/nfs2.h>
+#include <linux/nfs_fs.h>
+
+#define NFSDBG_FACILITY		NFSDBG_PROC
+
+/*
+ * Bare-bones access to getattr: this is for nfs_read_super.
+ */
+static int
+nfs_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
+		  struct nfs_fattr *fattr)
+{
+	int		status;
+
+	dprintk("NFS call  getroot\n");
+	fattr->valid = 0;
+	status = rpc_call(server->client, NFSPROC_GETATTR, fhandle, fattr, 0);
+	dprintk("NFS reply getroot\n");
+	return status;
+}
+
+/*
+ * One function for each procedure in the NFS protocol.
+ */
+static int
+nfs_proc_getattr(struct inode *inode, struct nfs_fattr *fattr)
+{
+	int	status;
+
+	dprintk("NFS call  getattr\n");
+	fattr->valid = 0;
+	status = rpc_call(NFS_CLIENT(inode), NFSPROC_GETATTR,
+				NFS_FH(inode), fattr, 0);
+	dprintk("NFS reply getattr\n");
+	return status;
+}
+
+static int
+nfs_proc_setattr(struct inode *inode, struct nfs_fattr *fattr,
+		 struct iattr *sattr)
+{
+	struct nfs_sattrargs	arg = { NFS_FH(inode), sattr };
+	int	status;
+
+	dprintk("NFS call  setattr\n");
+	fattr->valid = 0;
+	status = rpc_call(NFS_CLIENT(inode), NFSPROC_SETATTR, &arg, fattr, 0);
+	dprintk("NFS reply setattr\n");
+	return status;
+}
+
+static int
+nfs_proc_lookup(struct inode *dir, struct qstr *name,
+		struct nfs_fh *fhandle, struct nfs_fattr *fattr)
+{
+	struct nfs_diropargs	arg = { NFS_FH(dir), name->name, name->len };
+	struct nfs_diropok	res = { fhandle, fattr };
+	int			status;
+
+	dprintk("NFS call  lookup %s\n", name->name);
+	fattr->valid = 0;
+	status = rpc_call(NFS_CLIENT(dir), NFSPROC_LOOKUP, &arg, &res, 0);
+	dprintk("NFS reply lookup: %d\n", status);
+	return status;
+}
+
+static int
+nfs_proc_readlink(struct inode *inode, struct page *page)
+{
+	struct nfs_readlinkargs	args = { NFS_FH(inode), PAGE_CACHE_SIZE, &page };
+	int			status;
+
+	dprintk("NFS call  readlink\n");
+	status = rpc_call(NFS_CLIENT(inode), NFSPROC_READLINK, &args, NULL, 0);
+	dprintk("NFS reply readlink: %d\n", status);
+	return status;
+}
+
+static int
+nfs_proc_read(struct inode *inode, struct rpc_cred *cred,
+	      struct nfs_fattr *fattr, int flags,
+	      unsigned int base, unsigned int count,
+	      struct page *page, int *eofp)
+{
+	u64			offset = page_offset(page) + base;
+	struct nfs_readargs	arg = { NFS_FH(inode), offset, count,
+					base, &page };
+	struct nfs_readres	res = { fattr, count, 0};
+	struct rpc_message	msg = { NFSPROC_READ, &arg, &res, cred };
+	int			status;
+
+	dprintk("NFS call  read %d @ %Ld\n", count, (long long)offset);
+	fattr->valid = 0;
+	status = rpc_call_sync(NFS_CLIENT(inode), &msg, flags);
+
+	dprintk("NFS reply read: %d\n", status);
+	*eofp = res.eof;
+	return status;
+}
+
+static int
+nfs_proc_write(struct inode *inode, struct rpc_cred *cred,
+	       struct nfs_fattr *fattr, int how,
+	       unsigned int base, unsigned int count,
+	       struct page *page, struct nfs_writeverf *verf)
+{
+	u64			offset = page_offset(page) + base;
+	struct nfs_writeargs	arg = { NFS_FH(inode), offset, count,
+					NFS_FILE_SYNC, base, &page };
+	struct nfs_writeres     res = {fattr, verf, count};
+	struct rpc_message	msg = { NFSPROC_WRITE, &arg, &res, cred };
+	int			status, flags = 0;
+
+	dprintk("NFS call  write %d @ %Ld\n", count, (long long)offset);
+	fattr->valid = 0;
+	if (how & NFS_RW_SWAP)
+		flags |= NFS_RPC_SWAPFLAGS;
+	status = rpc_call_sync(NFS_CLIENT(inode), &msg, flags);
+
+	dprintk("NFS reply write: %d\n", status);
+	verf->committed = NFS_FILE_SYNC;      /* NFSv2 always syncs data */
+	return status < 0? status : count;
+}
+
+static int
+nfs_proc_create(struct inode *dir, struct qstr *name, struct iattr *sattr,
+		int flags, struct nfs_fh *fhandle, struct nfs_fattr *fattr)
+{
+	struct nfs_createargs	arg = { NFS_FH(dir), name->name,
+					name->len, sattr };
+	struct nfs_diropok	res = { fhandle, fattr };
+	int			status;
+
+	fattr->valid = 0;
+	dprintk("NFS call  create %s\n", name->name);
+	status = rpc_call(NFS_CLIENT(dir), NFSPROC_CREATE, &arg, &res, 0);
+	dprintk("NFS reply create: %d\n", status);
+	return status;
+}
+
+/*
+ * In NFSv2, mknod is grafted onto the create call.
+ */
+static int
+nfs_proc_mknod(struct inode *dir, struct qstr *name, struct iattr *sattr,
+	       dev_t rdev, struct nfs_fh *fhandle, struct nfs_fattr *fattr)
+{
+	struct nfs_createargs	arg = { NFS_FH(dir), name->name,
+						     name->len, sattr };
+	struct nfs_diropok	res = { fhandle, fattr };
+	int			status, mode;
+
+	dprintk("NFS call  mknod %s\n", name->name);
+
+	mode = sattr->ia_mode;
+	if (S_ISFIFO(mode)) {
+		sattr->ia_mode = (mode & ~S_IFMT) | S_IFCHR;
+		sattr->ia_valid &= ~ATTR_SIZE;
+	} else if (S_ISCHR(mode) || S_ISBLK(mode)) {
+		sattr->ia_valid |= ATTR_SIZE;
+		sattr->ia_size   = rdev;	/* get out your barf bag */
+	}
+
+	fattr->valid = 0;
+	status = rpc_call(NFS_CLIENT(dir), NFSPROC_CREATE, &arg, &res, 0);
+
+	if (status == -EINVAL && S_ISFIFO(mode)) {
+		sattr->ia_mode = mode;
+		fattr->valid = 0;
+		status = rpc_call(NFS_CLIENT(dir), NFSPROC_CREATE, &arg, &res, 0);
+	}
+	dprintk("NFS reply mknod: %d\n", status);
+	return status;
+}
+  
+static int
+nfs_proc_remove(struct inode *dir, struct qstr *name)
+{
+	struct nfs_diropargs	arg = { NFS_FH(dir), name->name, name->len };
+	struct rpc_message	msg = { NFSPROC_REMOVE, &arg, NULL, NULL };
+	int			status;
+
+	dprintk("NFS call  remove %s\n", name->name);
+	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
+
+	dprintk("NFS reply remove: %d\n", status);
+	return status;
+}
+
+static int
+nfs_proc_unlink_setup(struct rpc_message *msg, struct dentry *dir, struct qstr *name)
+{
+	struct nfs_diropargs	*arg;
+
+	arg = (struct nfs_diropargs *)kmalloc(sizeof(*arg), GFP_KERNEL);
+	if (!arg)
+		return -ENOMEM;
+	arg->fh = NFS_FH(dir->d_inode);
+	arg->name = name->name;
+	arg->len = name->len;
+	msg->rpc_proc = NFSPROC_REMOVE;
+	msg->rpc_argp = arg;
+	return 0;
+}
+
+static void
+nfs_proc_unlink_done(struct dentry *dir, struct rpc_message *msg)
+{
+	if (msg->rpc_argp) {
+		NFS_CACHEINV(dir->d_inode);
+		kfree(msg->rpc_argp);
+	}
+}
+
+static int
+nfs_proc_rename(struct inode *old_dir, struct qstr *old_name,
+		struct inode *new_dir, struct qstr *new_name)
+{
+	struct nfs_renameargs	arg = { NFS_FH(old_dir), old_name->name,
+					old_name->len,
+					NFS_FH(new_dir), new_name->name,
+					new_name->len};
+	int			status;
+
+	dprintk("NFS call  rename %s -> %s\n", old_name->name, new_name->name);
+	status = rpc_call(NFS_CLIENT(old_dir), NFSPROC_RENAME, &arg, NULL, 0);
+	dprintk("NFS reply rename: %d\n", status);
+	return status;
+}
+
+static int
+nfs_proc_link(struct inode *inode, struct inode *dir, struct qstr *name)
+{
+	struct nfs_linkargs	arg = { NFS_FH(inode), NFS_FH(dir),
+					name->name, name->len };
+	int			status;
+
+	dprintk("NFS call  link %s\n", name->name);
+	status = rpc_call(NFS_CLIENT(inode), NFSPROC_LINK, &arg, NULL, 0);
+	dprintk("NFS reply link: %d\n", status);
+	return status;
+}
+
+static int
+nfs_proc_symlink(struct inode *dir, struct qstr *name, struct qstr *path,
+		 struct iattr *sattr, struct nfs_fh *fhandle,
+		 struct nfs_fattr *fattr)
+{
+	struct nfs_symlinkargs	arg = { NFS_FH(dir), name->name, name->len,
+					path->name, path->len, sattr };
+	int			status;
+
+	dprintk("NFS call  symlink %s -> %s\n", name->name, path->name);
+	fattr->valid = 0;
+	status = rpc_call(NFS_CLIENT(dir), NFSPROC_SYMLINK, &arg, NULL, 0);
+	dprintk("NFS reply symlink: %d\n", status);
+	return status;
+}
+
+static int
+nfs_proc_mkdir(struct inode *dir, struct qstr *name, struct iattr *sattr,
+	       struct nfs_fh *fhandle, struct nfs_fattr *fattr)
+{
+	struct nfs_createargs	arg = { NFS_FH(dir), name->name, name->len,
+					sattr };
+	struct nfs_diropok	res = { fhandle, fattr };
+	int			status;
+
+	dprintk("NFS call  mkdir %s\n", name->name);
+	fattr->valid = 0;
+	status = rpc_call(NFS_CLIENT(dir), NFSPROC_MKDIR, &arg, &res, 0);
+	dprintk("NFS reply mkdir: %d\n", status);
+	return status;
+}
+
+static int
+nfs_proc_rmdir(struct inode *dir, struct qstr *name)
+{
+	struct nfs_diropargs	arg = { NFS_FH(dir), name->name, name->len };
+	int			status;
+
+	dprintk("NFS call  rmdir %s\n", name->name);
+	status = rpc_call(NFS_CLIENT(dir), NFSPROC_RMDIR, &arg, NULL, 0);
+	dprintk("NFS reply rmdir: %d\n", status);
+	return status;
+}
+
+/*
+ * The READDIR implementation is somewhat hackish - we pass a temporary
+ * buffer to the encode function, which installs it in the receive
+ * the receive iovec. The decode function just parses the reply to make
+ * sure it is syntactically correct; the entries itself are decoded
+ * from nfs_readdir by calling the decode_entry function directly.
+ */
+static int
+nfs_proc_readdir(struct inode *dir, struct rpc_cred *cred,
+		 __u64 cookie, struct page *page, 
+		 unsigned int count, int plus)
+{
+	struct nfs_readdirargs	arg = { NFS_FH(dir), cookie, count, &page };
+	struct rpc_message	msg = { NFSPROC_READDIR, &arg, NULL, cred };
+	int			status;
+
+	dprintk("NFS call  readdir %d\n", (unsigned int)cookie);
+	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
+
+	dprintk("NFS reply readdir: %d\n", status);
+	return status;
+}
+
+static int
+nfs_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle,
+			struct nfs_fsinfo *info)
+{
+	int	status;
+
+	dprintk("NFS call  statfs\n");
+	memset((char *)info, 0, sizeof(*info));
+	status = rpc_call(server->client, NFSPROC_STATFS, fhandle, info, 0);
+	dprintk("NFS reply statfs: %d\n", status);
+	return status;
+}
+
+extern u32 * nfs_decode_dirent(u32 *, struct nfs_entry *, int);
+
+struct nfs_rpc_ops     nfs_v2_clientops = {
+       2,		       /* protocol version */
+       nfs_proc_get_root,
+       nfs_proc_getattr,
+       nfs_proc_setattr,
+       nfs_proc_lookup,
+       NULL,		       /* access */
+       nfs_proc_readlink,
+       nfs_proc_read,
+       nfs_proc_write,
+       NULL,		       /* commit */
+       nfs_proc_create,
+       nfs_proc_remove,
+       nfs_proc_unlink_setup,
+       nfs_proc_unlink_done,
+       nfs_proc_rename,
+       nfs_proc_link,
+       nfs_proc_symlink,
+       nfs_proc_mkdir,
+       nfs_proc_rmdir,
+       nfs_proc_readdir,
+       nfs_proc_mknod,
+       nfs_proc_statfs,
+       nfs_decode_dirent,
+};
diff --git a/fs/nfs/read.c b/fs/nfs/read.c
new file mode 100644
index 00000000000000..1e0024b3d07242
--- /dev/null
+++ b/fs/nfs/read.c
@@ -0,0 +1,508 @@
+/*
+ * linux/fs/nfs/read.c
+ *
+ * Block I/O for NFS
+ *
+ * Partial copy of Linus' read cache modifications to fs/nfs/file.c
+ * modified for async RPC by okir@monad.swb.de
+ *
+ * We do an ugly hack here in order to return proper error codes to the
+ * user program when a read request failed: since generic_file_read
+ * only checks the return value of inode->i_op->readpage() which is always 0
+ * for async RPC, we set the error bit of the page to 1 when an error occurs,
+ * and make nfs_readpage transmit requests synchronously when encountering this.
+ * This is only a small problem, though, since we now retry all operations
+ * within the RPC code when root squashing is suspected.
+ */
+
+#include <linux/config.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/fcntl.h>
+#include <linux/stat.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/pagemap.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/nfs_fs.h>
+#include <linux/nfs_page.h>
+#include <linux/nfs_flushd.h>
+#include <linux/smp_lock.h>
+
+#include <asm/system.h>
+
+#define NFSDBG_FACILITY		NFSDBG_PAGECACHE
+
+struct nfs_read_data {
+	struct rpc_task		task;
+	struct inode		*inode;
+	struct rpc_cred		*cred;
+	struct nfs_readargs	args;	/* XDR argument struct */
+	struct nfs_readres	res;	/* ... and result struct */
+	struct nfs_fattr	fattr;	/* fattr storage */
+	struct list_head	pages;	/* Coalesced read requests */
+	struct page		*pagevec[NFS_READ_MAXIOV];
+};
+
+/*
+ * Local function declarations
+ */
+static void	nfs_readpage_result(struct rpc_task *task);
+
+/* Hack for future NFS swap support */
+#ifndef IS_SWAPFILE
+# define IS_SWAPFILE(inode)	(0)
+#endif
+
+static kmem_cache_t *nfs_rdata_cachep;
+
+static __inline__ struct nfs_read_data *nfs_readdata_alloc(void)
+{
+	struct nfs_read_data   *p;
+	p = kmem_cache_alloc(nfs_rdata_cachep, SLAB_NOFS);
+	if (p) {
+		memset(p, 0, sizeof(*p));
+		INIT_LIST_HEAD(&p->pages);
+		p->args.pages = p->pagevec;
+	}
+	return p;
+}
+
+static __inline__ void nfs_readdata_free(struct nfs_read_data *p)
+{
+	kmem_cache_free(nfs_rdata_cachep, p);
+}
+
+static void nfs_readdata_release(struct rpc_task *task)
+{
+        struct nfs_read_data   *data = (struct nfs_read_data *)task->tk_calldata;
+        nfs_readdata_free(data);
+}
+
+/*
+ * Read a page synchronously.
+ */
+static int
+nfs_readpage_sync(struct file *file, struct inode *inode, struct page *page)
+{
+	struct rpc_cred	*cred = NULL;
+	struct nfs_fattr fattr;
+	unsigned int	offset = 0;
+	int		rsize = NFS_SERVER(inode)->rsize;
+	int		result;
+	int		count = PAGE_CACHE_SIZE;
+	int		flags = IS_SWAPFILE(inode)? NFS_RPC_SWAPFLAGS : 0;
+	int		eof;
+
+	dprintk("NFS: nfs_readpage_sync(%p)\n", page);
+
+	if (file)
+		cred = nfs_file_cred(file);
+
+	/*
+	 * This works now because the socket layer never tries to DMA
+	 * into this buffer directly.
+	 */
+	do {
+		if (count < rsize)
+			rsize = count;
+
+		dprintk("NFS: nfs_proc_read(%s, (%x/%Ld), %u, %u, %p)\n",
+			NFS_SERVER(inode)->hostname,
+			inode->i_dev, (long long)NFS_FILEID(inode),
+			offset, rsize, page);
+
+		lock_kernel();
+		result = NFS_PROTO(inode)->read(inode, cred, &fattr, flags,
+						offset, rsize, page, &eof);
+		nfs_refresh_inode(inode, &fattr);
+		unlock_kernel();
+
+		/*
+		 * Even if we had a partial success we can't mark the page
+		 * cache valid.
+		 */
+		if (result < 0) {
+			if (result == -EISDIR)
+				result = -EINVAL;
+			goto io_error;
+		}
+		count  -= result;
+		offset += result;
+		if (result < rsize)	/* NFSv2ism */
+			break;
+	} while (count);
+
+	if (count) {
+		char *kaddr = kmap(page);
+		memset(kaddr + offset, 0, count);
+		kunmap(page);
+	}
+	flush_dcache_page(page);
+	SetPageUptodate(page);
+	if (PageError(page))
+		ClearPageError(page);
+	result = 0;
+
+io_error:
+	UnlockPage(page);
+	return result;
+}
+
+/*
+ * Add a request to the inode's asynchronous read list.
+ */
+static inline void
+nfs_mark_request_read(struct nfs_page *req)
+{
+	struct inode *inode = req->wb_inode;
+
+	spin_lock(&nfs_wreq_lock);
+	nfs_list_add_request(req, &inode->u.nfs_i.read);
+	inode->u.nfs_i.nread++;
+	__nfs_add_lru(&NFS_SERVER(inode)->lru_read, req);
+	spin_unlock(&nfs_wreq_lock);
+}
+
+static int
+nfs_readpage_async(struct file *file, struct inode *inode, struct page *page)
+{
+	struct nfs_page	*new;
+
+	new = nfs_create_request(nfs_file_cred(file), inode, page, 0, PAGE_CACHE_SIZE);
+	if (IS_ERR(new)) {
+		SetPageError(page);
+		NFS_ClearPageSync(page);
+		UnlockPage(page);
+		return PTR_ERR(new);
+	}
+	nfs_mark_request_read(new);
+
+	if (NFS_TestClearPageSync(page) ||
+	    inode->u.nfs_i.nread >= NFS_SERVER(inode)->rpages ||
+	    page_index(page) == (inode->i_size + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT)
+		nfs_pagein_inode(inode, 0, 0);
+	return 0;
+}
+
+/*
+ * Set up the NFS read request struct
+ */
+static void
+nfs_read_rpcsetup(struct list_head *head, struct nfs_read_data *data)
+{
+	struct nfs_page		*req;
+	struct page		**pages;
+	unsigned int		count;
+
+	pages = data->args.pages;
+	count = 0;
+	while (!list_empty(head)) {
+		struct nfs_page *req = nfs_list_entry(head->next);
+		nfs_list_remove_request(req);
+		nfs_list_add_request(req, &data->pages);
+		*pages++ = req->wb_page;
+		count += req->wb_bytes;
+	}
+	req = nfs_list_entry(data->pages.next);
+	data->inode	  = req->wb_inode;
+	data->cred	  = req->wb_cred;
+	data->args.fh     = NFS_FH(req->wb_inode);
+	data->args.offset = page_offset(req->wb_page) + req->wb_offset;
+	data->args.pgbase = req->wb_offset;
+	data->args.count  = count;
+	data->res.fattr   = &data->fattr;
+	data->res.count   = count;
+	data->res.eof     = 0;
+}
+
+static void
+nfs_async_read_error(struct list_head *head)
+{
+	struct nfs_page	*req;
+	struct page	*page;
+
+	while (!list_empty(head)) {
+		req = nfs_list_entry(head->next);
+		page = req->wb_page;
+		nfs_list_remove_request(req);
+		NFS_ClearPageSync(page);
+		SetPageError(page);
+		UnlockPage(page);
+		nfs_clear_request(req);
+		nfs_release_request(req);
+		nfs_unlock_request(req);
+	}
+}
+
+static int
+nfs_pagein_one(struct list_head *head, struct inode *inode)
+{
+	struct rpc_task		*task;
+	struct rpc_clnt		*clnt = NFS_CLIENT(inode);
+	struct nfs_read_data	*data;
+	struct rpc_message	msg;
+	int			flags;
+	sigset_t		oldset;
+
+	data = nfs_readdata_alloc();
+	if (!data)
+		goto out_bad;
+	task = &data->task;
+
+	/* N.B. Do we need to test? Never called for swapfile inode */
+	flags = RPC_TASK_ASYNC | (IS_SWAPFILE(inode)? NFS_RPC_SWAPFLAGS : 0);
+
+	nfs_read_rpcsetup(head, data);
+
+	/* Finalize the task. */
+	rpc_init_task(task, clnt, nfs_readpage_result, flags);
+	task->tk_calldata = data;
+	/* Release requests */
+	task->tk_release = nfs_readdata_release;
+
+#ifdef CONFIG_NFS_V3
+	msg.rpc_proc = (NFS_PROTO(inode)->version == 3) ? NFS3PROC_READ : NFSPROC_READ;
+#else
+	msg.rpc_proc = NFSPROC_READ;
+#endif
+	msg.rpc_argp = &data->args;
+	msg.rpc_resp = &data->res;
+	msg.rpc_cred = data->cred;
+
+	/* Start the async call */
+	dprintk("NFS: %4d initiated read call (req %x/%Ld count %u.\n",
+		task->tk_pid,
+		inode->i_dev, (long long)NFS_FILEID(inode),
+		data->args.count);
+
+	rpc_clnt_sigmask(clnt, &oldset);
+	rpc_call_setup(task, &msg, 0);
+	lock_kernel();
+	rpc_execute(task);
+	unlock_kernel();
+	rpc_clnt_sigunmask(clnt, &oldset);
+	return 0;
+out_bad:
+	nfs_async_read_error(head);
+	return -ENOMEM;
+}
+
+int
+nfs_pagein_list(struct list_head *head, int rpages)
+{
+	LIST_HEAD(one_request);
+	struct nfs_page		*req;
+	int			error = 0;
+	unsigned int		pages = 0;
+
+	while (!list_empty(head)) {
+		pages += nfs_coalesce_requests(head, &one_request, rpages);
+		req = nfs_list_entry(one_request.next);
+		error = nfs_pagein_one(&one_request, req->wb_inode);
+		if (error < 0)
+			break;
+	}
+	if (error >= 0)
+		return pages;
+
+	nfs_async_read_error(head);
+	return error;
+}
+
+/**
+ * nfs_scan_lru_read_timeout - Scan LRU list for timed out read requests
+ * @server: NFS superblock data
+ * @dst: destination list
+ *
+ * Moves a maximum of 'rpages' timed out requests from the NFS read LRU list.
+ * The elements are checked to ensure that they form a contiguous set
+ * of pages, and that they originated from the same file.
+ */
+int
+nfs_scan_lru_read_timeout(struct nfs_server *server, struct list_head *dst)
+{
+	struct inode *inode;
+	int npages;
+
+	npages = nfs_scan_lru_timeout(&server->lru_read, dst, server->rpages);
+	if (npages) {
+		inode = nfs_list_entry(dst->next)->wb_inode;
+		inode->u.nfs_i.nread -= npages;
+	}
+	return npages;
+}
+
+/**
+ * nfs_scan_lru_read - Scan LRU list for read requests
+ * @server: NFS superblock data
+ * @dst: destination list
+ *
+ * Moves a maximum of 'rpages' requests from the NFS read LRU list.
+ * The elements are checked to ensure that they form a contiguous set
+ * of pages, and that they originated from the same file.
+ */
+int
+nfs_scan_lru_read(struct nfs_server *server, struct list_head *dst)
+{
+	struct inode *inode;
+	int npages;
+
+	npages = nfs_scan_lru(&server->lru_read, dst, server->rpages);
+	if (npages) {
+		inode = nfs_list_entry(dst->next)->wb_inode;
+		inode->u.nfs_i.nread -= npages;
+	}
+	return npages;
+}
+
+/*
+ * nfs_scan_read - Scan an inode for read requests
+ * @inode: NFS inode to scan
+ * @dst: destination list
+ * @idx_start: lower bound of page->index to scan
+ * @npages: idx_start + npages sets the upper bound to scan
+ *
+ * Moves requests from the inode's read list.
+ * The requests are *not* checked to ensure that they form a contiguous set.
+ */
+static int
+nfs_scan_read(struct inode *inode, struct list_head *dst, unsigned long idx_start, unsigned int npages)
+{
+	int	res;
+	res = nfs_scan_list(&inode->u.nfs_i.read, dst, idx_start, npages);
+	inode->u.nfs_i.nread -= res;
+	if ((inode->u.nfs_i.nread == 0) != list_empty(&inode->u.nfs_i.read))
+		printk(KERN_ERR "NFS: desynchronized value of nfs_i.nread.\n");
+	return res;
+}
+
+int nfs_pagein_inode(struct inode *inode, unsigned long idx_start,
+		     unsigned int npages)
+{
+	LIST_HEAD(head);
+	int	res,
+		error = 0;
+
+	spin_lock(&nfs_wreq_lock);
+	res = nfs_scan_read(inode, &head, idx_start, npages);
+	spin_unlock(&nfs_wreq_lock);
+	if (res)
+		error = nfs_pagein_list(&head, NFS_SERVER(inode)->rpages);
+	if (error < 0)
+		return error;
+	return res;
+}
+
+/*
+ * This is the callback from RPC telling us whether a reply was
+ * received or some error occurred (timeout or socket shutdown).
+ */
+static void
+nfs_readpage_result(struct rpc_task *task)
+{
+	struct nfs_read_data	*data = (struct nfs_read_data *) task->tk_calldata;
+	struct inode		*inode = data->inode;
+	unsigned int		count = data->res.count;
+
+	dprintk("NFS: %4d nfs_readpage_result, (status %d)\n",
+		task->tk_pid, task->tk_status);
+
+	if (nfs_async_handle_jukebox(task))
+		return;
+
+	nfs_refresh_inode(inode, &data->fattr);
+	while (!list_empty(&data->pages)) {
+		struct nfs_page *req = nfs_list_entry(data->pages.next);
+		struct page *page = req->wb_page;
+		nfs_list_remove_request(req);
+
+		if (task->tk_status >= 0) {
+			if (count < PAGE_CACHE_SIZE) {
+				char *p = kmap(page);
+				memset(p + count, 0, PAGE_CACHE_SIZE - count);
+				kunmap(page);
+				count = 0;
+			} else
+				count -= PAGE_CACHE_SIZE;
+			SetPageUptodate(page);
+		} else
+			SetPageError(page);
+		flush_dcache_page(page);
+		NFS_ClearPageSync(page);
+		UnlockPage(page);
+
+		dprintk("NFS: read (%x/%Ld %d@%Ld)\n",
+                        req->wb_inode->i_dev,
+                        (long long)NFS_FILEID(req->wb_inode),
+                        req->wb_bytes,
+                        (long long)(page_offset(page) + req->wb_offset));
+		nfs_clear_request(req);
+		nfs_release_request(req);
+		nfs_unlock_request(req);
+	}
+}
+
+/*
+ * Read a page over NFS.
+ * We read the page synchronously in the following cases:
+ *  -	The NFS rsize is smaller than PAGE_CACHE_SIZE. We could kludge our way
+ *	around this by creating several consecutive read requests, but
+ *	that's hardly worth it.
+ *  -	The error flag is set for this page. This happens only when a
+ *	previous async read operation failed.
+ */
+int
+nfs_readpage(struct file *file, struct page *page)
+{
+	struct inode *inode = page->mapping->host;
+	int		error;
+
+	dprintk("NFS: nfs_readpage (%p %ld@%lu)\n",
+		page, PAGE_CACHE_SIZE, page->index);
+	/*
+	 * Try to flush any pending writes to the file..
+	 *
+	 * NOTE! Because we own the page lock, there cannot
+	 * be any new pending writes generated at this point
+	 * for this page (other pages can be written to).
+	 */
+	error = nfs_wb_page(inode, page);
+	if (error)
+		goto out_error;
+
+	if (!PageError(page) && NFS_SERVER(inode)->rsize >= PAGE_CACHE_SIZE) {
+		error = nfs_readpage_async(file, inode, page);
+		goto out;
+	}
+
+	error = nfs_readpage_sync(file, inode, page);
+	if (error < 0 && IS_SWAPFILE(inode))
+		printk("Aiee.. nfs swap-in of page failed!\n");
+out:
+	return error;
+
+out_error:
+	NFS_ClearPageSync(page);
+	UnlockPage(page);
+	goto out;
+}
+
+int nfs_init_readpagecache(void)
+{
+	nfs_rdata_cachep = kmem_cache_create("nfs_read_data",
+					     sizeof(struct nfs_read_data),
+					     0, SLAB_HWCACHE_ALIGN,
+					     NULL, NULL);
+	if (nfs_rdata_cachep == NULL)
+		return -ENOMEM;
+
+	return 0;
+}
+
+void nfs_destroy_readpagecache(void)
+{
+	if (kmem_cache_destroy(nfs_rdata_cachep))
+		printk(KERN_INFO "nfs_read_data: not all structures were freed\n");
+}
diff --git a/fs/nfs/symlink.c b/fs/nfs/symlink.c
new file mode 100644
index 00000000000000..ec80009246dfb5
--- /dev/null
+++ b/fs/nfs/symlink.c
@@ -0,0 +1,108 @@
+/*
+ *  linux/fs/nfs/symlink.c
+ *
+ *  Copyright (C) 1992  Rick Sladkey
+ *
+ *  Optimization changes Copyright (C) 1994 Florian La Roche
+ *
+ *  Jun 7 1999, cache symlink lookups in the page cache.  -DaveM
+ *
+ *  nfs symlink handling code
+ */
+
+#define NFS_NEED_XDR_TYPES
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/nfs.h>
+#include <linux/nfs2.h>
+#include <linux/nfs_fs.h>
+#include <linux/pagemap.h>
+#include <linux/stat.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/smp_lock.h>
+
+/* Symlink caching in the page cache is even more simplistic
+ * and straight-forward than readdir caching.
+ */
+static int nfs_symlink_filler(struct inode *inode, struct page *page)
+{
+	int error;
+
+	/* We place the length at the beginning of the page,
+	 * in host byte order, followed by the string.  The
+	 * XDR response verification will NULL terminate it.
+	 */
+	lock_kernel();
+	error = NFS_PROTO(inode)->readlink(inode, page);
+	unlock_kernel();
+	if (error < 0)
+		goto error;
+	SetPageUptodate(page);
+	UnlockPage(page);
+	return 0;
+
+error:
+	SetPageError(page);
+	UnlockPage(page);
+	return -EIO;
+}
+
+static char *nfs_getlink(struct inode *inode, struct page **ppage)
+{
+	struct page *page;
+	u32 *p;
+
+	/* Caller revalidated the directory inode already. */
+	page = read_cache_page(&inode->i_data, 0,
+				(filler_t *)nfs_symlink_filler, inode);
+	if (IS_ERR(page))
+		goto read_failed;
+	if (!Page_Uptodate(page))
+		goto getlink_read_error;
+	*ppage = page;
+	p = kmap(page);
+	return (char*)(p+1);
+		
+getlink_read_error:
+	page_cache_release(page);
+	return ERR_PTR(-EIO);
+read_failed:
+	return (char*)page;
+}
+
+static int nfs_readlink(struct dentry *dentry, char *buffer, int buflen)
+{
+	struct inode *inode = dentry->d_inode;
+	struct page *page = NULL;
+	int res = vfs_readlink(dentry,buffer,buflen,nfs_getlink(inode,&page));
+	if (page) {
+		kunmap(page);
+		page_cache_release(page);
+	}
+	return res;
+}
+
+static int nfs_follow_link(struct dentry *dentry, struct nameidata *nd)
+{
+	struct inode *inode = dentry->d_inode;
+	struct page *page = NULL;
+	int res = vfs_follow_link(nd, nfs_getlink(inode,&page));
+	if (page) {
+		kunmap(page);
+		page_cache_release(page);
+	}
+	return res;
+}
+
+/*
+ * symlinks can't do much...
+ */
+struct inode_operations nfs_symlink_inode_operations = {
+	readlink:	nfs_readlink,
+	follow_link:	nfs_follow_link,
+	revalidate:	nfs_revalidate,
+	setattr:	nfs_notify_change,
+};
diff --git a/fs/nfs/unlink.c b/fs/nfs/unlink.c
new file mode 100644
index 00000000000000..9697bedad53c1b
--- /dev/null
+++ b/fs/nfs/unlink.c
@@ -0,0 +1,218 @@
+/*
+ *  linux/fs/nfs/unlink.c
+ *
+ * nfs sillydelete handling
+ *
+ * NOTE: we rely on holding the BKL for list manipulation protection.
+ */
+
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/dcache.h>
+#include <linux/sunrpc/sched.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/nfs_fs.h>
+
+
+struct nfs_unlinkdata {
+	struct nfs_unlinkdata	*next;
+	struct dentry	*dir, *dentry;
+	struct qstr	name;
+	struct rpc_task	task;
+	struct rpc_cred	*cred;
+	unsigned int	count;
+};
+
+static struct nfs_unlinkdata	*nfs_deletes;
+static RPC_WAITQ(nfs_delete_queue, "nfs_delete_queue");
+
+/**
+ * nfs_detach_unlinkdata - Remove asynchronous unlink from global list
+ * @data: pointer to descriptor
+ */
+static inline void
+nfs_detach_unlinkdata(struct nfs_unlinkdata *data)
+{
+	struct nfs_unlinkdata	**q;
+
+	for (q = &nfs_deletes; *q != NULL; q = &((*q)->next)) {
+		if (*q == data) {
+			*q = data->next;
+			break;
+		}
+	}
+}
+
+/**
+ * nfs_put_unlinkdata - release data from a sillydelete operation.
+ * @data: pointer to unlink structure.
+ */
+static void
+nfs_put_unlinkdata(struct nfs_unlinkdata *data)
+{
+	if (--data->count == 0) {
+		nfs_detach_unlinkdata(data);
+		if (data->name.name != NULL)
+			kfree(data->name.name);
+		kfree(data);
+	}
+}
+
+#define NAME_ALLOC_LEN(len)	((len+16) & ~15)
+/**
+ * nfs_copy_dname - copy dentry name to data structure
+ * @dentry: pointer to dentry
+ * @data: nfs_unlinkdata
+ */
+static inline void
+nfs_copy_dname(struct dentry *dentry, struct nfs_unlinkdata *data)
+{
+	char		*str;
+	int		len = dentry->d_name.len;
+
+	str = kmalloc(NAME_ALLOC_LEN(len), GFP_KERNEL);
+	if (!str)
+		return;
+	memcpy(str, dentry->d_name.name, len);
+	if (!data->name.len) {
+		data->name.len = len;
+		data->name.name = str;
+	} else
+		kfree(str);
+}
+
+/**
+ * nfs_async_unlink_init - Initialize the RPC info
+ * @task: rpc_task of the sillydelete
+ *
+ * We delay initializing RPC info until after the call to dentry_iput()
+ * in order to minimize races against rename().
+ */
+static void
+nfs_async_unlink_init(struct rpc_task *task)
+{
+	struct nfs_unlinkdata	*data = (struct nfs_unlinkdata *)task->tk_calldata;
+	struct dentry		*dir = data->dir;
+	struct rpc_message	msg;
+	int			status = -ENOENT;
+
+	if (!data->name.len)
+		goto out_err;
+
+	memset(&msg, 0, sizeof(msg));
+	msg.rpc_cred = data->cred;
+	status = NFS_PROTO(dir->d_inode)->unlink_setup(&msg, dir, &data->name);
+	if (status < 0)
+		goto out_err;
+	rpc_call_setup(task, &msg, 0);
+	return;
+ out_err:
+	rpc_exit(task, status);
+}
+
+/**
+ * nfs_async_unlink_done - Sillydelete post-processing
+ * @task: rpc_task of the sillydelete
+ *
+ * Do the directory attribute update.
+ */
+static void
+nfs_async_unlink_done(struct rpc_task *task)
+{
+	struct nfs_unlinkdata	*data = (struct nfs_unlinkdata *)task->tk_calldata;
+	struct dentry		*dir = data->dir;
+	struct inode		*dir_i;
+
+	if (nfs_async_handle_jukebox(task))
+		return;
+	if (!dir)
+		return;
+	dir_i = dir->d_inode;
+	nfs_zap_caches(dir_i);
+	NFS_PROTO(dir_i)->unlink_done(dir, &task->tk_msg);
+	put_rpccred(data->cred);
+	data->cred = NULL;
+	dput(dir);
+}
+
+/**
+ * nfs_async_unlink_release - Release the sillydelete data.
+ * @task: rpc_task of the sillydelete
+ *
+ * We need to call nfs_put_unlinkdata as a 'tk_release' task since the
+ * rpc_task would be freed too.
+ */
+static void
+nfs_async_unlink_release(struct rpc_task *task)
+{
+	struct nfs_unlinkdata	*data = (struct nfs_unlinkdata *)task->tk_calldata;
+	nfs_put_unlinkdata(data);
+}
+
+/**
+ * nfs_async_unlink - asynchronous unlinking of a file
+ * @dir: directory in which the file resides.
+ * @name: name of the file to unlink.
+ */
+int
+nfs_async_unlink(struct dentry *dentry)
+{
+	struct dentry	*dir = dentry->d_parent;
+	struct nfs_unlinkdata	*data;
+	struct rpc_task	*task;
+	struct rpc_clnt	*clnt = NFS_CLIENT(dir->d_inode);
+	int		status = -ENOMEM;
+
+	data = kmalloc(sizeof(*data), GFP_KERNEL);
+	if (!data)
+		goto out;
+	memset(data, 0, sizeof(*data));
+
+	data->dir = dget(dir);
+	data->dentry = dentry;
+
+	data->next = nfs_deletes;
+	nfs_deletes = data;
+	data->count = 1;
+
+	task = &data->task;
+	rpc_init_task(task, clnt, nfs_async_unlink_done , RPC_TASK_ASYNC);
+	task->tk_calldata = data;
+	task->tk_action = nfs_async_unlink_init;
+	task->tk_release = nfs_async_unlink_release;
+
+	dentry->d_flags |= DCACHE_NFSFS_RENAMED;
+	data->cred = rpcauth_lookupcred(clnt->cl_auth, 0);
+
+	rpc_sleep_on(&nfs_delete_queue, task, NULL, NULL);
+	status = 0;
+ out:
+	return status;
+}
+
+/**
+ * nfs_complete_remove - Initialize completion of the sillydelete
+ * @dentry: dentry to delete
+ *
+ * Since we're most likely to be called by dentry_iput(), we
+ * only use the dentry to find the sillydelete. We then copy the name
+ * into the qstr.
+ */
+void
+nfs_complete_unlink(struct dentry *dentry)
+{
+	struct nfs_unlinkdata	*data;
+
+	for(data = nfs_deletes; data != NULL; data = data->next) {
+		if (dentry == data->dentry)
+			break;
+	}
+	if (!data)
+		return;
+	data->count++;
+	nfs_copy_dname(dentry, data);
+	dentry->d_flags &= ~DCACHE_NFSFS_RENAMED;
+	if (data->task.tk_rpcwait == &nfs_delete_queue)
+		rpc_wake_up_task(&data->task);
+	nfs_put_unlinkdata(data);
+}
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
new file mode 100644
index 00000000000000..01e84fc443b514
--- /dev/null
+++ b/fs/nfs/write.c
@@ -0,0 +1,1323 @@
+/*
+ * linux/fs/nfs/write.c
+ *
+ * Writing file data over NFS.
+ *
+ * We do it like this: When a (user) process wishes to write data to an
+ * NFS file, a write request is allocated that contains the RPC task data
+ * plus some info on the page to be written, and added to the inode's
+ * write chain. If the process writes past the end of the page, an async
+ * RPC call to write the page is scheduled immediately; otherwise, the call
+ * is delayed for a few seconds.
+ *
+ * Just like readahead, no async I/O is performed if wsize < PAGE_SIZE.
+ *
+ * Write requests are kept on the inode's writeback list. Each entry in
+ * that list references the page (portion) to be written. When the
+ * cache timeout has expired, the RPC task is woken up, and tries to
+ * lock the page. As soon as it manages to do so, the request is moved
+ * from the writeback list to the writelock list.
+ *
+ * Note: we must make sure never to confuse the inode passed in the
+ * write_page request with the one in page->inode. As far as I understand
+ * it, these are different when doing a swap-out.
+ *
+ * To understand everything that goes on here and in the NFS read code,
+ * one should be aware that a page is locked in exactly one of the following
+ * cases:
+ *
+ *  -	A write request is in progress.
+ *  -	A user process is in generic_file_write/nfs_update_page
+ *  -	A user process is in generic_file_read
+ *
+ * Also note that because of the way pages are invalidated in
+ * nfs_revalidate_inode, the following assertions hold:
+ *
+ *  -	If a page is dirty, there will be no read requests (a page will
+ *	not be re-read unless invalidated by nfs_revalidate_inode).
+ *  -	If the page is not uptodate, there will be no pending write
+ *	requests, and no process will be in nfs_update_page.
+ *
+ * FIXME: Interaction with the vmscan routines is not optimal yet.
+ * Either vmscan must be made nfs-savvy, or we need a different page
+ * reclaim concept that supports something like FS-independent
+ * buffer_heads with a b_ops-> field.
+ *
+ * Copyright (C) 1996, 1997, Olaf Kirch <okir@monad.swb.de>
+ */
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/swap.h>
+#include <linux/pagemap.h>
+#include <linux/file.h>
+
+#include <linux/sunrpc/clnt.h>
+#include <linux/nfs_fs.h>
+#include <linux/nfs_mount.h>
+#include <linux/nfs_flushd.h>
+#include <linux/nfs_page.h>
+#include <asm/uaccess.h>
+#include <linux/smp_lock.h>
+
+#define NFSDBG_FACILITY		NFSDBG_PAGECACHE
+
+/*
+ * Local structures
+ *
+ * This is the struct where the WRITE/COMMIT arguments go.
+ */
+struct nfs_write_data {
+	struct rpc_task		task;
+	struct inode		*inode;
+	struct rpc_cred		*cred;
+	struct nfs_writeargs	args;		/* argument struct */
+	struct nfs_writeres	res;		/* result struct */
+	struct nfs_fattr	fattr;
+	struct nfs_writeverf	verf;
+	struct list_head	pages;		/* Coalesced requests we wish to flush */
+	struct page		*pagevec[NFS_WRITE_MAXIOV];
+};
+
+/*
+ * Local function declarations
+ */
+static struct nfs_page * nfs_update_request(struct file*, struct inode *,
+					    struct page *,
+					    unsigned int, unsigned int);
+static void	nfs_strategy(struct inode *inode);
+static void	nfs_writeback_done(struct rpc_task *);
+#ifdef CONFIG_NFS_V3
+static void	nfs_commit_done(struct rpc_task *);
+#endif
+
+/* Hack for future NFS swap support */
+#ifndef IS_SWAPFILE
+# define IS_SWAPFILE(inode)	(0)
+#endif
+
+static kmem_cache_t *nfs_wdata_cachep;
+
+static __inline__ struct nfs_write_data *nfs_writedata_alloc(void)
+{
+	struct nfs_write_data	*p;
+	p = kmem_cache_alloc(nfs_wdata_cachep, SLAB_NOFS);
+	if (p) {
+		memset(p, 0, sizeof(*p));
+		INIT_LIST_HEAD(&p->pages);
+		p->args.pages = p->pagevec;
+	}
+	return p;
+}
+
+static __inline__ void nfs_writedata_free(struct nfs_write_data *p)
+{
+	kmem_cache_free(nfs_wdata_cachep, p);
+}
+
+static void nfs_writedata_release(struct rpc_task *task)
+{
+	struct nfs_write_data	*wdata = (struct nfs_write_data *)task->tk_calldata;
+	nfs_writedata_free(wdata);
+}
+
+/*
+ * Write a page synchronously.
+ * Offset is the data offset within the page.
+ */
+static int
+nfs_writepage_sync(struct file *file, struct inode *inode, struct page *page,
+		   unsigned int offset, unsigned int count)
+{
+	struct rpc_cred	*cred = NULL;
+	loff_t		base;
+	unsigned int	wsize = NFS_SERVER(inode)->wsize;
+	int		result, refresh = 0, written = 0, flags;
+	u8		*buffer;
+	struct nfs_fattr fattr;
+	struct nfs_writeverf verf;
+
+
+	if (file)
+		cred = get_rpccred(nfs_file_cred(file));
+	if (!cred)
+		cred = get_rpccred(NFS_I(inode)->mm_cred);
+
+	dprintk("NFS:      nfs_writepage_sync(%x/%Ld %d@%Ld)\n",
+		inode->i_dev, (long long)NFS_FILEID(inode),
+		count, (long long)(page_offset(page) + offset));
+
+	base = page_offset(page) + offset;
+
+	flags = ((IS_SWAPFILE(inode)) ? NFS_RW_SWAP : 0) | NFS_RW_SYNC;
+
+	do {
+		if (count < wsize && !IS_SWAPFILE(inode))
+			wsize = count;
+
+		result = NFS_PROTO(inode)->write(inode, cred, &fattr, flags,
+						 offset, wsize, page, &verf);
+		nfs_write_attributes(inode, &fattr);
+
+		if (result < 0) {
+			/* Must mark the page invalid after I/O error */
+			ClearPageUptodate(page);
+			goto io_error;
+		}
+		if (result != wsize)
+			printk("NFS: short write, wsize=%u, result=%d\n",
+			wsize, result);
+		refresh = 1;
+		buffer  += wsize;
+		base    += wsize;
+	        offset  += wsize;
+		written += wsize;
+		count   -= wsize;
+		/*
+		 * If we've extended the file, update the inode
+		 * now so we don't invalidate the cache.
+		 */
+		if (base > inode->i_size)
+			inode->i_size = base;
+	} while (count);
+
+	if (PageError(page))
+		ClearPageError(page);
+
+io_error:
+	if (cred)
+		put_rpccred(cred);
+
+	return written? written : result;
+}
+
+static int
+nfs_writepage_async(struct file *file, struct inode *inode, struct page *page,
+		    unsigned int offset, unsigned int count)
+{
+	struct nfs_page	*req;
+	loff_t		end;
+	int		status;
+
+	req = nfs_update_request(file, inode, page, offset, count);
+	status = (IS_ERR(req)) ? PTR_ERR(req) : 0;
+	if (status < 0)
+		goto out;
+	if (!req->wb_cred)
+		req->wb_cred = get_rpccred(NFS_I(inode)->mm_cred);
+	nfs_unlock_request(req);
+	nfs_strategy(inode);
+	end = ((loff_t)page->index<<PAGE_CACHE_SHIFT) + (loff_t)(offset + count);
+	if (inode->i_size < end)
+		inode->i_size = end;
+
+ out:
+	return status;
+}
+
+/*
+ * Write an mmapped page to the server.
+ */
+int
+nfs_writepage(struct page *page)
+{
+	struct inode *inode = page->mapping->host;
+	unsigned long end_index;
+	unsigned offset = PAGE_CACHE_SIZE;
+	int inode_referenced = 0;
+	int err;
+
+	/*
+	 * Note: We need to ensure that we have a reference to the inode
+	 *       if we are to do asynchronous writes. If not, waiting
+	 *       in nfs_wait_on_request() may deadlock with clear_inode().
+	 *
+	 *       If igrab() fails here, then it is in any case safe to
+	 *       call nfs_wb_page(), since there will be no pending writes.
+	 */
+	if (igrab(inode) != 0)
+		inode_referenced = 1;
+	end_index = inode->i_size >> PAGE_CACHE_SHIFT;
+
+	/* Ensure we've flushed out any previous writes */
+	nfs_wb_page(inode,page);
+
+	/* easy case */
+	if (page->index < end_index)
+		goto do_it;
+	/* things got complicated... */
+	offset = inode->i_size & (PAGE_CACHE_SIZE-1);
+
+	/* OK, are we completely out? */
+	err = -EIO;
+	if (page->index >= end_index+1 || !offset)
+		goto out;
+do_it:
+	lock_kernel();
+	if (NFS_SERVER(inode)->wsize >= PAGE_CACHE_SIZE && !IS_SYNC(inode) &&
+			inode_referenced) {
+		err = nfs_writepage_async(NULL, inode, page, 0, offset);
+		if (err >= 0)
+			err = 0;
+	} else {
+		err = nfs_writepage_sync(NULL, inode, page, 0, offset); 
+		if (err == offset)
+			err = 0;
+	}
+	unlock_kernel();
+out:
+	UnlockPage(page);
+	if (inode_referenced)
+		iput(inode);
+	return err;
+}
+
+/*
+ * Check whether the file range we want to write to is locked by
+ * us.
+ */
+static int
+region_locked(struct inode *inode, struct nfs_page *req)
+{
+	struct file_lock	*fl;
+	loff_t			rqstart, rqend;
+
+	/* Don't optimize writes if we don't use NLM */
+	if (NFS_SERVER(inode)->flags & NFS_MOUNT_NONLM)
+		return 0;
+
+	rqstart = page_offset(req->wb_page) + req->wb_offset;
+	rqend = rqstart + req->wb_bytes;
+	for (fl = inode->i_flock; fl; fl = fl->fl_next) {
+		if (fl->fl_owner == current->files && (fl->fl_flags & FL_POSIX)
+		    && fl->fl_type == F_WRLCK
+		    && fl->fl_start <= rqstart && rqend <= fl->fl_end) {
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+/*
+ * Insert a write request into an inode
+ * Note: we sort the list in order to be able to optimize nfs_find_request()
+ *	 & co. for the 'write append' case. For 2.5 we may want to consider
+ *	 some form of hashing so as to perform well on random writes.
+ */
+static inline void
+nfs_inode_add_request(struct inode *inode, struct nfs_page *req)
+{
+	struct list_head *pos, *head;
+	unsigned long pg_idx = page_index(req->wb_page);
+
+	if (!list_empty(&req->wb_hash))
+		return;
+	if (!NFS_WBACK_BUSY(req))
+		printk(KERN_ERR "NFS: unlocked request attempted hashed!\n");
+	head = &inode->u.nfs_i.writeback;
+	if (list_empty(head))
+		igrab(inode);
+	list_for_each_prev(pos, head) {
+		struct nfs_page *entry = nfs_inode_wb_entry(pos);
+		if (page_index(entry->wb_page) < pg_idx)
+			break;
+	}
+	inode->u.nfs_i.npages++;
+	list_add(&req->wb_hash, pos);
+	req->wb_count++;
+}
+
+/*
+ * Insert a write request into an inode
+ */
+static inline void
+nfs_inode_remove_request(struct nfs_page *req)
+{
+	struct inode *inode;
+	spin_lock(&nfs_wreq_lock);
+	if (list_empty(&req->wb_hash)) {
+		spin_unlock(&nfs_wreq_lock);
+		return;
+	}
+	if (!NFS_WBACK_BUSY(req))
+		printk(KERN_ERR "NFS: unlocked request attempted unhashed!\n");
+	inode = req->wb_inode;
+	list_del(&req->wb_hash);
+	INIT_LIST_HEAD(&req->wb_hash);
+	inode->u.nfs_i.npages--;
+	if ((inode->u.nfs_i.npages == 0) != list_empty(&inode->u.nfs_i.writeback))
+		printk(KERN_ERR "NFS: desynchronized value of nfs_i.npages.\n");
+	if (list_empty(&inode->u.nfs_i.writeback)) {
+		spin_unlock(&nfs_wreq_lock);
+		iput(inode);
+	} else
+		spin_unlock(&nfs_wreq_lock);
+	nfs_clear_request(req);
+	nfs_release_request(req);
+}
+
+/*
+ * Find a request
+ */
+static inline struct nfs_page *
+_nfs_find_request(struct inode *inode, struct page *page)
+{
+	struct list_head	*head, *pos;
+	unsigned long pg_idx = page_index(page);
+
+	head = &inode->u.nfs_i.writeback;
+	list_for_each_prev(pos, head) {
+		struct nfs_page *req = nfs_inode_wb_entry(pos);
+		unsigned long found_idx = page_index(req->wb_page);
+
+		if (pg_idx < found_idx)
+			continue;
+		if (pg_idx != found_idx)
+			break;
+		req->wb_count++;
+		return req;
+	}
+	return NULL;
+}
+
+static struct nfs_page *
+nfs_find_request(struct inode *inode, struct page *page)
+{
+	struct nfs_page		*req;
+
+	spin_lock(&nfs_wreq_lock);
+	req = _nfs_find_request(inode, page);
+	spin_unlock(&nfs_wreq_lock);
+	return req;
+}
+
+/*
+ * Add a request to the inode's dirty list.
+ */
+static inline void
+nfs_mark_request_dirty(struct nfs_page *req)
+{
+	struct inode *inode = req->wb_inode;
+
+	spin_lock(&nfs_wreq_lock);
+	nfs_list_add_request(req, &inode->u.nfs_i.dirty);
+	inode->u.nfs_i.ndirty++;
+	__nfs_del_lru(req);
+	__nfs_add_lru(&NFS_SERVER(inode)->lru_dirty, req);
+	spin_unlock(&nfs_wreq_lock);
+	mark_inode_dirty(inode);
+}
+
+/*
+ * Check if a request is dirty
+ */
+static inline int
+nfs_dirty_request(struct nfs_page *req)
+{
+	struct inode *inode = req->wb_inode;
+	return !list_empty(&req->wb_list) && req->wb_list_head == &inode->u.nfs_i.dirty;
+}
+
+#ifdef CONFIG_NFS_V3
+/*
+ * Add a request to the inode's commit list.
+ */
+static inline void
+nfs_mark_request_commit(struct nfs_page *req)
+{
+	struct inode *inode = req->wb_inode;
+
+	spin_lock(&nfs_wreq_lock);
+	nfs_list_add_request(req, &inode->u.nfs_i.commit);
+	inode->u.nfs_i.ncommit++;
+	__nfs_del_lru(req);
+	__nfs_add_lru(&NFS_SERVER(inode)->lru_commit, req);
+	spin_unlock(&nfs_wreq_lock);
+	mark_inode_dirty(inode);
+}
+#endif
+
+/*
+ * Wait for a request to complete.
+ *
+ * Interruptible by signals only if mounted with intr flag.
+ */
+static int
+nfs_wait_on_requests(struct inode *inode, unsigned long idx_start, unsigned int npages)
+{
+	struct list_head	*p, *head;
+	unsigned long		idx_end;
+	unsigned int		res = 0;
+	int			error;
+
+	if (npages == 0)
+		idx_end = ~0;
+	else
+		idx_end = idx_start + npages - 1;
+
+	head = &inode->u.nfs_i.writeback;
+ restart:
+	spin_lock(&nfs_wreq_lock);
+	list_for_each_prev(p, head) {
+		unsigned long pg_idx;
+		struct nfs_page *req = nfs_inode_wb_entry(p);
+
+		pg_idx = page_index(req->wb_page);
+		if (pg_idx < idx_start)
+			break;
+		if (pg_idx > idx_end)
+			continue;
+
+		if (!NFS_WBACK_BUSY(req))
+			continue;
+		req->wb_count++;
+		spin_unlock(&nfs_wreq_lock);
+		error = nfs_wait_on_request(req);
+		nfs_release_request(req);
+		if (error < 0)
+			return error;
+		res++;
+		goto restart;
+	}
+	spin_unlock(&nfs_wreq_lock);
+	return res;
+}
+
+/**
+ * nfs_scan_lru_dirty_timeout - Scan LRU list for timed out dirty requests
+ * @server: NFS superblock data
+ * @dst: destination list
+ *
+ * Moves a maximum of 'wpages' requests from the NFS dirty page LRU list.
+ * The elements are checked to ensure that they form a contiguous set
+ * of pages, and that they originated from the same file.
+ */
+int
+nfs_scan_lru_dirty_timeout(struct nfs_server *server, struct list_head *dst)
+{
+	struct inode *inode;
+	int npages;
+
+	npages = nfs_scan_lru_timeout(&server->lru_dirty, dst, server->wpages);
+	if (npages) {
+		inode = nfs_list_entry(dst->next)->wb_inode;
+		inode->u.nfs_i.ndirty -= npages;
+	}
+	return npages;
+}
+
+/**
+ * nfs_scan_lru_dirty - Scan LRU list for dirty requests
+ * @server: NFS superblock data
+ * @dst: destination list
+ *
+ * Moves a maximum of 'wpages' requests from the NFS dirty page LRU list.
+ * The elements are checked to ensure that they form a contiguous set
+ * of pages, and that they originated from the same file.
+ */
+int
+nfs_scan_lru_dirty(struct nfs_server *server, struct list_head *dst)
+{
+	struct inode *inode;
+	int npages;
+
+	npages = nfs_scan_lru(&server->lru_dirty, dst, server->wpages);
+	if (npages) {
+		inode = nfs_list_entry(dst->next)->wb_inode;
+		inode->u.nfs_i.ndirty -= npages;
+	}
+	return npages;
+}
+
+/*
+ * nfs_scan_dirty - Scan an inode for dirty requests
+ * @inode: NFS inode to scan
+ * @dst: destination list
+ * @idx_start: lower bound of page->index to scan.
+ * @npages: idx_start + npages sets the upper bound to scan.
+ *
+ * Moves requests from the inode's dirty page list.
+ * The requests are *not* checked to ensure that they form a contiguous set.
+ */
+static int
+nfs_scan_dirty(struct inode *inode, struct list_head *dst, unsigned long idx_start, unsigned int npages)
+{
+	int	res;
+	res = nfs_scan_list(&inode->u.nfs_i.dirty, dst, idx_start, npages);
+	inode->u.nfs_i.ndirty -= res;
+	if ((inode->u.nfs_i.ndirty == 0) != list_empty(&inode->u.nfs_i.dirty))
+		printk(KERN_ERR "NFS: desynchronized value of nfs_i.ndirty.\n");
+	return res;
+}
+
+#ifdef CONFIG_NFS_V3
+/**
+ * nfs_scan_lru_commit_timeout - Scan LRU list for timed out commit requests
+ * @server: NFS superblock data
+ * @dst: destination list
+ *
+ * Finds the first a timed out request in the NFS commit LRU list and moves it
+ * to the list dst. If such an element is found, we move all other commit
+ * requests that apply to the same inode.
+ * The assumption is that doing everything in a single commit-to-disk is
+ * the cheaper alternative.
+ */
+int
+nfs_scan_lru_commit_timeout(struct nfs_server *server, struct list_head *dst)
+{
+	struct inode *inode;
+	int npages;
+
+	npages = nfs_scan_lru_timeout(&server->lru_commit, dst, 1);
+	if (npages) {
+		inode = nfs_list_entry(dst->next)->wb_inode;
+		npages += nfs_scan_list(&inode->u.nfs_i.commit, dst, 0, 0);
+		inode->u.nfs_i.ncommit -= npages;
+	}
+	return npages;
+}
+
+
+/**
+ * nfs_scan_lru_commit_timeout - Scan LRU list for timed out commit requests
+ * @server: NFS superblock data
+ * @dst: destination list
+ *
+ * Finds the first request in the NFS commit LRU list and moves it
+ * to the list dst. If such an element is found, we move all other commit
+ * requests that apply to the same inode.
+ * The assumption is that doing everything in a single commit-to-disk is
+ * the cheaper alternative.
+ */
+int
+nfs_scan_lru_commit(struct nfs_server *server, struct list_head *dst)
+{
+	struct inode *inode;
+	int npages;
+
+	npages = nfs_scan_lru(&server->lru_commit, dst, 1);
+	if (npages) {
+		inode = nfs_list_entry(dst->next)->wb_inode;
+		npages += nfs_scan_list(&inode->u.nfs_i.commit, dst, 0, 0);
+		inode->u.nfs_i.ncommit -= npages;
+	}
+	return npages;
+}
+
+/*
+ * nfs_scan_commit - Scan an inode for commit requests
+ * @inode: NFS inode to scan
+ * @dst: destination list
+ * @idx_start: lower bound of page->index to scan.
+ * @npages: idx_start + npages sets the upper bound to scan.
+ *
+ * Moves requests from the inode's 'commit' request list.
+ * The requests are *not* checked to ensure that they form a contiguous set.
+ */
+static int
+nfs_scan_commit(struct inode *inode, struct list_head *dst, unsigned long idx_start, unsigned int npages)
+{
+	int	res;
+	res = nfs_scan_list(&inode->u.nfs_i.commit, dst, idx_start, npages);
+	inode->u.nfs_i.ncommit -= res;
+	if ((inode->u.nfs_i.ncommit == 0) != list_empty(&inode->u.nfs_i.commit))
+		printk(KERN_ERR "NFS: desynchronized value of nfs_i.ncommit.\n");
+	return res;
+}
+#endif
+
+
+/*
+ * Try to update any existing write request, or create one if there is none.
+ * In order to match, the request's credentials must match those of
+ * the calling process.
+ *
+ * Note: Should always be called with the Page Lock held!
+ */
+static struct nfs_page *
+nfs_update_request(struct file* file, struct inode *inode, struct page *page,
+		   unsigned int offset, unsigned int bytes)
+{
+	struct nfs_page		*req, *new = NULL;
+	unsigned long		rqend, end;
+
+	end = offset + bytes;
+
+	for (;;) {
+		/* Loop over all inode entries and see if we find
+		 * A request for the page we wish to update
+		 */
+		spin_lock(&nfs_wreq_lock);
+		req = _nfs_find_request(inode, page);
+		if (req) {
+			if (!nfs_lock_request_dontget(req)) {
+				int error;
+				spin_unlock(&nfs_wreq_lock);
+				error = nfs_wait_on_request(req);
+				nfs_release_request(req);
+				if (error < 0)
+					return ERR_PTR(error);
+				continue;
+			}
+			spin_unlock(&nfs_wreq_lock);
+			if (new)
+				nfs_release_request(new);
+			break;
+		}
+
+		if (new) {
+			nfs_lock_request_dontget(new);
+			nfs_inode_add_request(inode, new);
+			spin_unlock(&nfs_wreq_lock);
+			nfs_mark_request_dirty(new);
+			return new;
+		}
+		spin_unlock(&nfs_wreq_lock);
+
+		new = nfs_create_request(nfs_file_cred(file), inode, page, offset, bytes);
+		if (IS_ERR(new))
+			return new;
+		if (file) {
+			new->wb_file = file;
+			get_file(file);
+		}
+		/* If the region is locked, adjust the timeout */
+		if (region_locked(inode, new))
+			new->wb_timeout = jiffies + NFS_WRITEBACK_LOCKDELAY;
+		else
+			new->wb_timeout = jiffies + NFS_WRITEBACK_DELAY;
+	}
+
+	/* We have a request for our page.
+	 * If the creds don't match, or the
+	 * page addresses don't match,
+	 * tell the caller to wait on the conflicting
+	 * request.
+	 */
+	rqend = req->wb_offset + req->wb_bytes;
+	if (req->wb_file != file
+	    || req->wb_page != page
+	    || !nfs_dirty_request(req)
+	    || offset > rqend || end < req->wb_offset) {
+		nfs_unlock_request(req);
+		return ERR_PTR(-EBUSY);
+	}
+
+	/* Okay, the request matches. Update the region */
+	if (offset < req->wb_offset) {
+		req->wb_offset = offset;
+		req->wb_bytes = rqend - req->wb_offset;
+	}
+
+	if (end > rqend)
+		req->wb_bytes = end - req->wb_offset;
+
+	return req;
+}
+
+/*
+ * This is the strategy routine for NFS.
+ * It is called by nfs_updatepage whenever the user wrote up to the end
+ * of a page.
+ *
+ * We always try to submit a set of requests in parallel so that the
+ * server's write code can gather writes. This is mainly for the benefit
+ * of NFSv2.
+ *
+ * We never submit more requests than we think the remote can handle.
+ * For UDP sockets, we make sure we don't exceed the congestion window;
+ * for TCP, we limit the number of requests to 8.
+ *
+ * NFS_STRATEGY_PAGES gives the minimum number of requests for NFSv2 that
+ * should be sent out in one go. This is for the benefit of NFSv2 servers
+ * that perform write gathering.
+ *
+ * FIXME: Different servers may have different sweet spots.
+ * Record the average congestion window in server struct?
+ */
+#define NFS_STRATEGY_PAGES      8
+static void
+nfs_strategy(struct inode *inode)
+{
+	unsigned int	dirty, wpages;
+
+	dirty  = inode->u.nfs_i.ndirty;
+	wpages = NFS_SERVER(inode)->wpages;
+#ifdef CONFIG_NFS_V3
+	if (NFS_PROTO(inode)->version == 2) {
+		if (dirty >= NFS_STRATEGY_PAGES * wpages)
+			nfs_flush_file(inode, 0, 0, 0);
+	} else if (dirty >= wpages)
+		nfs_flush_file(inode, 0, 0, 0);
+#else
+	if (dirty >= NFS_STRATEGY_PAGES * wpages)
+		nfs_flush_file(inode, 0, 0, 0);
+#endif
+}
+
+int
+nfs_flush_incompatible(struct file *file, struct page *page)
+{
+	struct rpc_cred	*cred = nfs_file_cred(file);
+	struct inode	*inode = page->mapping->host;
+	struct nfs_page	*req;
+	int		status = 0;
+	/*
+	 * Look for a request corresponding to this page. If there
+	 * is one, and it belongs to another file, we flush it out
+	 * before we try to copy anything into the page. Do this
+	 * due to the lack of an ACCESS-type call in NFSv2.
+	 * Also do the same if we find a request from an existing
+	 * dropped page.
+	 */
+	req = nfs_find_request(inode,page);
+	if (req) {
+		if (req->wb_file != file || req->wb_cred != cred || req->wb_page != page)
+			status = nfs_wb_page(inode, page);
+		nfs_release_request(req);
+	}
+	return (status < 0) ? status : 0;
+}
+
+/*
+ * Update and possibly write a cached page of an NFS file.
+ *
+ * XXX: Keep an eye on generic_file_read to make sure it doesn't do bad
+ * things with a page scheduled for an RPC call (e.g. invalidate it).
+ */
+int
+nfs_updatepage(struct file *file, struct page *page, unsigned int offset, unsigned int count)
+{
+	struct dentry	*dentry = file->f_dentry;
+	struct inode	*inode = page->mapping->host;
+	struct nfs_page	*req;
+	loff_t		end;
+	int		status = 0;
+
+	dprintk("NFS:      nfs_updatepage(%s/%s %d@%Ld)\n",
+		dentry->d_parent->d_name.name, dentry->d_name.name,
+		count, (long long)(page_offset(page) +offset));
+
+	/*
+	 * If wsize is smaller than page size, update and write
+	 * page synchronously.
+	 */
+	if (NFS_SERVER(inode)->wsize < PAGE_CACHE_SIZE || IS_SYNC(inode)) {
+		status = nfs_writepage_sync(file, inode, page, offset, count);
+		if (status > 0) {
+			if (offset == 0 && status == PAGE_CACHE_SIZE)
+				SetPageUptodate(page);
+			return 0;
+		}
+		return status;
+	}
+
+	/*
+	 * Try to find an NFS request corresponding to this page
+	 * and update it.
+	 * If the existing request cannot be updated, we must flush
+	 * it out now.
+	 */
+	do {
+		req = nfs_update_request(file, inode, page, offset, count);
+		status = (IS_ERR(req)) ? PTR_ERR(req) : 0;
+		if (status != -EBUSY)
+			break;
+		/* Request could not be updated. Flush it out and try again */
+		status = nfs_wb_page(inode, page);
+	} while (status >= 0);
+	if (status < 0)
+		goto done;
+
+	status = 0;
+	end = ((loff_t)page->index<<PAGE_CACHE_SHIFT) + (loff_t)(offset + count);
+	if (inode->i_size < end)
+		inode->i_size = end;
+
+	/* If we wrote past the end of the page.
+	 * Call the strategy routine so it can send out a bunch
+	 * of requests.
+	 */
+	if (req->wb_offset == 0 && req->wb_bytes == PAGE_CACHE_SIZE) {
+		SetPageUptodate(page);
+		nfs_unlock_request(req);
+		nfs_strategy(inode);
+	} else
+		nfs_unlock_request(req);
+done:
+        dprintk("NFS:      nfs_updatepage returns %d (isize %Ld)\n",
+                                                status, (long long)inode->i_size);
+	if (status < 0)
+		ClearPageUptodate(page);
+	return status;
+}
+
+/*
+ * Set up the argument/result storage required for the RPC call.
+ */
+static void
+nfs_write_rpcsetup(struct list_head *head, struct nfs_write_data *data)
+{
+	struct nfs_page		*req;
+	struct page		**pages;
+	unsigned int		count;
+
+	/* Set up the RPC argument and reply structs
+	 * NB: take care not to mess about with data->commit et al. */
+
+	pages = data->args.pages;
+	count = 0;
+	while (!list_empty(head)) {
+		struct nfs_page *req = nfs_list_entry(head->next);
+		nfs_list_remove_request(req);
+		nfs_list_add_request(req, &data->pages);
+		*pages++ = req->wb_page;
+		count += req->wb_bytes;
+	}
+	req = nfs_list_entry(data->pages.next);
+	data->inode = req->wb_inode;
+	data->cred = req->wb_cred;
+	data->args.fh     = NFS_FH(req->wb_inode);
+	data->args.offset = page_offset(req->wb_page) + req->wb_offset;
+	data->args.pgbase = req->wb_offset;
+	data->args.count  = count;
+	data->res.fattr   = &data->fattr;
+	data->res.count   = count;
+	data->res.verf    = &data->verf;
+}
+
+
+/*
+ * Create an RPC task for the given write request and kick it.
+ * The page must have been locked by the caller.
+ *
+ * It may happen that the page we're passed is not marked dirty.
+ * This is the case if nfs_updatepage detects a conflicting request
+ * that has been written but not committed.
+ */
+static int
+nfs_flush_one(struct list_head *head, struct inode *inode, int how)
+{
+	struct rpc_clnt 	*clnt = NFS_CLIENT(inode);
+	struct nfs_write_data	*data;
+	struct rpc_task		*task;
+	struct rpc_message	msg;
+	int                     flags,
+				nfsvers = NFS_PROTO(inode)->version,
+				async = !(how & FLUSH_SYNC),
+				stable = (how & FLUSH_STABLE);
+	sigset_t		oldset;
+
+
+	data = nfs_writedata_alloc();
+	if (!data)
+		goto out_bad;
+	task = &data->task;
+
+	/* Set the initial flags for the task.  */
+	flags = (async) ? RPC_TASK_ASYNC : 0;
+
+	/* Set up the argument struct */
+	nfs_write_rpcsetup(head, data);
+	if (nfsvers < 3)
+		data->args.stable = NFS_FILE_SYNC;
+	else if (stable) {
+		if (!inode->u.nfs_i.ncommit)
+			data->args.stable = NFS_FILE_SYNC;
+		else
+			data->args.stable = NFS_DATA_SYNC;
+	} else
+		data->args.stable = NFS_UNSTABLE;
+
+	/* Finalize the task. */
+	rpc_init_task(task, clnt, nfs_writeback_done, flags);
+	task->tk_calldata = data;
+	/* Release requests */
+	task->tk_release = nfs_writedata_release;
+
+#ifdef CONFIG_NFS_V3
+	msg.rpc_proc = (nfsvers == 3) ? NFS3PROC_WRITE : NFSPROC_WRITE;
+#else
+	msg.rpc_proc = NFSPROC_WRITE;
+#endif
+	msg.rpc_argp = &data->args;
+	msg.rpc_resp = &data->res;
+	msg.rpc_cred = data->cred;
+
+	dprintk("NFS: %4d initiated write call (req %x/%Ld count %u)\n",
+		task->tk_pid, 
+		inode->i_dev,
+		(long long)NFS_FILEID(inode),
+		data->args.count);
+
+	rpc_clnt_sigmask(clnt, &oldset);
+	rpc_call_setup(task, &msg, 0);
+	lock_kernel();
+	rpc_execute(task);
+	unlock_kernel();
+	rpc_clnt_sigunmask(clnt, &oldset);
+	return 0;
+ out_bad:
+	while (!list_empty(head)) {
+		struct nfs_page *req = nfs_list_entry(head->next);
+		nfs_list_remove_request(req);
+		nfs_mark_request_dirty(req);
+		nfs_unlock_request(req);
+	}
+	return -ENOMEM;
+}
+
+int
+nfs_flush_list(struct list_head *head, int wpages, int how)
+{
+	LIST_HEAD(one_request);
+	struct nfs_page		*req;
+	int			error = 0;
+	unsigned int		pages = 0;
+
+	while (!list_empty(head)) {
+		pages += nfs_coalesce_requests(head, &one_request, wpages);
+		req = nfs_list_entry(one_request.next);
+		error = nfs_flush_one(&one_request, req->wb_inode, how);
+		if (error < 0)
+			break;
+	}
+	if (error >= 0)
+		return pages;
+
+	while (!list_empty(head)) {
+		req = nfs_list_entry(head->next);
+		nfs_list_remove_request(req);
+		nfs_mark_request_dirty(req);
+		nfs_unlock_request(req);
+	}
+	return error;
+}
+
+
+/*
+ * This function is called when the WRITE call is complete.
+ */
+static void
+nfs_writeback_done(struct rpc_task *task)
+{
+	struct nfs_write_data	*data = (struct nfs_write_data *) task->tk_calldata;
+	struct nfs_writeargs	*argp = &data->args;
+	struct nfs_writeres	*resp = &data->res;
+	struct inode		*inode = data->inode;
+	struct nfs_page		*req;
+	struct page		*page;
+
+	dprintk("NFS: %4d nfs_writeback_done (status %d)\n",
+		task->tk_pid, task->tk_status);
+
+	if (nfs_async_handle_jukebox(task))
+		return;
+
+	/* We can't handle that yet but we check for it nevertheless */
+	if (resp->count < argp->count && task->tk_status >= 0) {
+		static unsigned long    complain;
+		if (time_before(complain, jiffies)) {
+			printk(KERN_WARNING
+			       "NFS: Server wrote less than requested.\n");
+			complain = jiffies + 300 * HZ;
+		}
+		/* Can't do anything about it right now except throw
+		 * an error. */
+		task->tk_status = -EIO;
+	}
+#ifdef CONFIG_NFS_V3
+	if (resp->verf->committed < argp->stable && task->tk_status >= 0) {
+		/* We tried a write call, but the server did not
+		 * commit data to stable storage even though we
+		 * requested it.
+		 * Note: There is a known bug in Tru64 < 5.0 in which
+		 *	 the server reports NFS_DATA_SYNC, but performs
+		 *	 NFS_FILE_SYNC. We therefore implement this checking
+		 *	 as a dprintk() in order to avoid filling syslog.
+		 */
+		static unsigned long    complain;
+
+		if (time_before(complain, jiffies)) {
+			dprintk("NFS: faulty NFSv3 server %s:"
+				" (committed = %d) != (stable = %d)\n",
+				NFS_SERVER(inode)->hostname,
+				resp->verf->committed, argp->stable);
+			complain = jiffies + 300 * HZ;
+		}
+	}
+#endif
+
+	/*
+	 * Update attributes as result of writeback.
+	 * FIXME: There is an inherent race with invalidate_inode_pages and
+	 *	  writebacks since the page->count is kept > 1 for as long
+	 *	  as the page has a write request pending.
+	 */
+	nfs_write_attributes(inode, resp->fattr);
+	while (!list_empty(&data->pages)) {
+		req = nfs_list_entry(data->pages.next);
+		nfs_list_remove_request(req);
+		page = req->wb_page;
+
+		dprintk("NFS: write (%x/%Ld %d@%Ld)",
+			req->wb_inode->i_dev,
+			(long long)NFS_FILEID(req->wb_inode),
+			req->wb_bytes,
+			(long long)(page_offset(page) + req->wb_offset));
+
+		if (task->tk_status < 0) {
+			ClearPageUptodate(page);
+			SetPageError(page);
+			if (req->wb_file)
+				req->wb_file->f_error = task->tk_status;
+			nfs_inode_remove_request(req);
+			dprintk(", error = %d\n", task->tk_status);
+			goto next;
+		}
+
+#ifdef CONFIG_NFS_V3
+		if (argp->stable != NFS_UNSTABLE || resp->verf->committed == NFS_FILE_SYNC) {
+			nfs_inode_remove_request(req);
+			dprintk(" OK\n");
+			goto next;
+		}
+		memcpy(&req->wb_verf, resp->verf, sizeof(req->wb_verf));
+		req->wb_timeout = jiffies + NFS_COMMIT_DELAY;
+		nfs_mark_request_commit(req);
+		dprintk(" marked for commit\n");
+#else
+		nfs_inode_remove_request(req);
+#endif
+	next:
+		nfs_unlock_request(req);
+	}
+}
+
+
+#ifdef CONFIG_NFS_V3
+/*
+ * Set up the argument/result storage required for the RPC call.
+ */
+static void
+nfs_commit_rpcsetup(struct list_head *head, struct nfs_write_data *data)
+{
+	struct nfs_page		*first, *last;
+	struct inode		*inode;
+	loff_t			start, end, len;
+
+	/* Set up the RPC argument and reply structs
+	 * NB: take care not to mess about with data->commit et al. */
+
+	list_splice(head, &data->pages);
+	INIT_LIST_HEAD(head);
+	first = nfs_list_entry(data->pages.next);
+	last = nfs_list_entry(data->pages.prev);
+	inode = first->wb_inode;
+
+	/*
+	 * Determine the offset range of requests in the COMMIT call.
+	 * We rely on the fact that data->pages is an ordered list...
+	 */
+	start = page_offset(first->wb_page) + first->wb_offset;
+	end = page_offset(last->wb_page) + (last->wb_offset + last->wb_bytes);
+	len = end - start;
+	/* If 'len' is not a 32-bit quantity, pass '0' in the COMMIT call */
+	if (end >= inode->i_size || len < 0 || len > (~((u32)0) >> 1))
+		len = 0;
+
+	data->inode	  = inode;
+	data->cred	  = first->wb_cred;
+	data->args.fh     = NFS_FH(inode);
+	data->args.offset = start;
+	data->res.count   = data->args.count = (u32)len;
+	data->res.fattr   = &data->fattr;
+	data->res.verf    = &data->verf;
+}
+
+/*
+ * Commit dirty pages
+ */
+int
+nfs_commit_list(struct list_head *head, int how)
+{
+	struct rpc_message	msg;
+	struct rpc_clnt		*clnt;
+	struct nfs_write_data	*data;
+	struct rpc_task         *task;
+	struct nfs_page         *req;
+	int                     flags,
+				async = !(how & FLUSH_SYNC);
+	sigset_t		oldset;
+
+	data = nfs_writedata_alloc();
+
+	if (!data)
+		goto out_bad;
+	task = &data->task;
+
+	flags = (async) ? RPC_TASK_ASYNC : 0;
+
+	/* Set up the argument struct */
+	nfs_commit_rpcsetup(head, data);
+	req = nfs_list_entry(data->pages.next);
+	clnt = NFS_CLIENT(req->wb_inode);
+
+	rpc_init_task(task, clnt, nfs_commit_done, flags);
+	task->tk_calldata = data;
+	/* Release requests */
+	task->tk_release = nfs_writedata_release;
+
+	msg.rpc_proc = NFS3PROC_COMMIT;
+	msg.rpc_argp = &data->args;
+	msg.rpc_resp = &data->res;
+	msg.rpc_cred = data->cred;
+
+	dprintk("NFS: %4d initiated commit call\n", task->tk_pid);
+	rpc_clnt_sigmask(clnt, &oldset);
+	rpc_call_setup(task, &msg, 0);
+	lock_kernel();
+	rpc_execute(task);
+	unlock_kernel();
+	rpc_clnt_sigunmask(clnt, &oldset);
+	return 0;
+ out_bad:
+	while (!list_empty(head)) {
+		req = nfs_list_entry(head->next);
+		nfs_list_remove_request(req);
+		nfs_mark_request_commit(req);
+		nfs_unlock_request(req);
+	}
+	return -ENOMEM;
+}
+
+/*
+ * COMMIT call returned
+ */
+static void
+nfs_commit_done(struct rpc_task *task)
+{
+	struct nfs_write_data	*data = (struct nfs_write_data *)task->tk_calldata;
+	struct nfs_writeres	*resp = &data->res;
+	struct nfs_page		*req;
+	struct inode		*inode = data->inode;
+
+        dprintk("NFS: %4d nfs_commit_done (status %d)\n",
+                                task->tk_pid, task->tk_status);
+
+	if (nfs_async_handle_jukebox(task))
+		return;
+
+	nfs_write_attributes(inode, resp->fattr);
+	while (!list_empty(&data->pages)) {
+		req = nfs_list_entry(data->pages.next);
+		nfs_list_remove_request(req);
+
+		dprintk("NFS: commit (%x/%Ld %d@%Ld)",
+			req->wb_inode->i_dev,
+			(long long)NFS_FILEID(req->wb_inode),
+			req->wb_bytes,
+			(long long)(page_offset(req->wb_page) + req->wb_offset));
+		if (task->tk_status < 0) {
+			if (req->wb_file)
+				req->wb_file->f_error = task->tk_status;
+			nfs_inode_remove_request(req);
+			dprintk(", error = %d\n", task->tk_status);
+			goto next;
+		}
+
+		/* Okay, COMMIT succeeded, apparently. Check the verifier
+		 * returned by the server against all stored verfs. */
+		if (!memcmp(req->wb_verf.verifier, data->verf.verifier, sizeof(data->verf.verifier))) {
+			/* We have a match */
+			nfs_inode_remove_request(req);
+			dprintk(" OK\n");
+			goto next;
+		}
+		/* We have a mismatch. Write the page again */
+		dprintk(" mismatch\n");
+		nfs_mark_request_dirty(req);
+	next:
+		nfs_unlock_request(req);
+	}
+}
+#endif
+
+int nfs_flush_file(struct inode *inode, unsigned long idx_start,
+		   unsigned int npages, int how)
+{
+	LIST_HEAD(head);
+	int			res,
+				error = 0;
+
+	spin_lock(&nfs_wreq_lock);
+	res = nfs_scan_dirty(inode, &head, idx_start, npages);
+	spin_unlock(&nfs_wreq_lock);
+	if (res)
+		error = nfs_flush_list(&head, NFS_SERVER(inode)->wpages, how);
+	if (error < 0)
+		return error;
+	return res;
+}
+
+#ifdef CONFIG_NFS_V3
+int nfs_commit_file(struct inode *inode, int how)
+{
+	LIST_HEAD(head);
+	int			res,
+				error = 0;
+
+	spin_lock(&nfs_wreq_lock);
+	res = nfs_scan_commit(inode, &head, 0, 0);
+	spin_unlock(&nfs_wreq_lock);
+	if (res)
+		error = nfs_commit_list(&head, how);
+	if (error < 0)
+		return error;
+	return res;
+}
+#endif
+
+int nfs_sync_file(struct inode *inode, unsigned long idx_start,
+		  unsigned int npages, int how)
+{
+	int	error,
+		wait;
+
+	wait = how & FLUSH_WAIT;
+	how &= ~FLUSH_WAIT;
+
+	do {
+		error = 0;
+		if (wait)
+			error = nfs_wait_on_requests(inode, idx_start, npages);
+		if (error == 0)
+			error = nfs_flush_file(inode, idx_start, npages, how);
+#ifdef CONFIG_NFS_V3
+		if (error == 0)
+			error = nfs_commit_file(inode, how);
+#endif
+	} while (error > 0);
+	return error;
+}
+
+int nfs_init_writepagecache(void)
+{
+	nfs_wdata_cachep = kmem_cache_create("nfs_write_data",
+					     sizeof(struct nfs_write_data),
+					     0, SLAB_HWCACHE_ALIGN,
+					     NULL, NULL);
+	if (nfs_wdata_cachep == NULL)
+		return -ENOMEM;
+
+	return 0;
+}
+
+void nfs_destroy_writepagecache(void)
+{
+	if (kmem_cache_destroy(nfs_wdata_cachep))
+		printk(KERN_INFO "nfs_write_data: not all structures were freed\n");
+}
+
diff --git a/fs/nfsd/Makefile b/fs/nfsd/Makefile
new file mode 100644
index 00000000000000..17775d0fbf16d0
--- /dev/null
+++ b/fs/nfsd/Makefile
@@ -0,0 +1,20 @@
+#
+# Makefile for the Linux nfs filesystem routines.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile.
+
+O_TARGET := nfsd.o
+
+obj-y :=    nfssvc.o nfsctl.o nfsproc.o nfsfh.o vfs.o \
+	    export.o auth.o lockd.o nfscache.o nfsxdr.o \
+	    stats.o
+
+obj-$(CONFIG_NFSD_V3) += nfs3proc.o nfs3xdr.o
+
+obj-m := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/nfsd/auth.c b/fs/nfsd/auth.c
new file mode 100644
index 00000000000000..12fa97fe1bfaff
--- /dev/null
+++ b/fs/nfsd/auth.c
@@ -0,0 +1,61 @@
+/*
+ * linux/fs/nfsd/auth.c
+ *
+ * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/sunrpc/svc.h>
+#include <linux/sunrpc/svcauth.h>
+#include <linux/nfsd/nfsd.h>
+
+#define	CAP_NFSD_MASK (CAP_FS_MASK|CAP_TO_MASK(CAP_SYS_RESOURCE))
+void
+nfsd_setuser(struct svc_rqst *rqstp, struct svc_export *exp)
+{
+	struct svc_cred	*cred = &rqstp->rq_cred;
+	int		i;
+
+	if (rqstp->rq_userset)
+		return;
+
+	if (exp->ex_flags & NFSEXP_ALLSQUASH) {
+		cred->cr_uid = exp->ex_anon_uid;
+		cred->cr_gid = exp->ex_anon_gid;
+		cred->cr_groups[0] = NOGROUP;
+	} else if (exp->ex_flags & NFSEXP_ROOTSQUASH) {
+		if (!cred->cr_uid)
+			cred->cr_uid = exp->ex_anon_uid;
+		if (!cred->cr_gid)
+			cred->cr_gid = exp->ex_anon_gid;
+		for (i = 0; i < NGROUPS; i++)
+			if (!cred->cr_groups[i])
+				cred->cr_groups[i] = exp->ex_anon_gid;
+	}
+
+	if (cred->cr_uid != (uid_t) -1)
+		current->fsuid = cred->cr_uid;
+	else
+		current->fsuid = exp->ex_anon_uid;
+	if (cred->cr_gid != (gid_t) -1)
+		current->fsgid = cred->cr_gid;
+	else
+		current->fsgid = exp->ex_anon_gid;
+	for (i = 0; i < NGROUPS; i++) {
+		gid_t group = cred->cr_groups[i];
+		if (group == (gid_t) NOGROUP)
+			break;
+		current->groups[i] = group;
+	}
+	current->ngroups = i;
+
+	if ((cred->cr_uid)) {
+		cap_t(current->cap_effective) &= ~CAP_NFSD_MASK;
+	} else {
+		cap_t(current->cap_effective) |= (CAP_NFSD_MASK &
+						  current->cap_permitted);
+	}
+
+	rqstp->rq_userset = 1;
+}
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
new file mode 100644
index 00000000000000..c024bcb2cd8a05
--- /dev/null
+++ b/fs/nfsd/export.c
@@ -0,0 +1,966 @@
+#define MSNFS	/* HACK HACK */
+/*
+ * linux/fs/nfsd/export.c
+ *
+ * NFS exporting and validation.
+ *
+ * We maintain a list of clients, each of which has a list of
+ * exports. To export an fs to a given client, you first have
+ * to create the client entry with NFSCTL_ADDCLIENT, which
+ * creates a client control block and adds it to the hash
+ * table. Then, you call NFSCTL_EXPORT for each fs.
+ *
+ *
+ * Copyright (C) 1995, 1996 Olaf Kirch, <okir@monad.swb.de>
+ */
+
+#include <linux/unistd.h>
+#include <linux/slab.h>
+#include <linux/stat.h>
+#include <linux/in.h>
+#include <linux/seq_file.h>
+#include <linux/smp_lock.h>
+
+#include <linux/sunrpc/svc.h>
+#include <linux/nfsd/nfsd.h>
+#include <linux/nfsd/nfsfh.h>
+#include <linux/nfsd/syscall.h>
+#include <linux/lockd/bind.h>
+
+#define NFSDDBG_FACILITY	NFSDDBG_EXPORT
+#define NFSD_PARANOIA 1
+
+typedef struct svc_client	svc_client;
+typedef struct svc_export	svc_export;
+
+static svc_export *	exp_parent(svc_client *clp, kdev_t dev,
+					struct dentry *dentry);
+static svc_export *	exp_child(svc_client *clp, kdev_t dev,
+					struct dentry *dentry);
+static void		exp_unexport_all(svc_client *clp);
+static void		exp_do_unexport(svc_export *unexp);
+static svc_client *	exp_getclientbyname(char *name);
+static void		exp_freeclient(svc_client *clp);
+static void		exp_unhashclient(svc_client *clp);
+static int		exp_verify_string(char *cp, int max);
+
+#define CLIENT_HASHBITS		6
+#define CLIENT_HASHMAX		(1 << CLIENT_HASHBITS)
+#define CLIENT_HASHMASK		(CLIENT_HASHMAX - 1)
+#define CLIENT_HASH(a) \
+		((((a)>>24) ^ ((a)>>16) ^ ((a)>>8) ^(a)) & CLIENT_HASHMASK)
+/* XXX: is this adequate for 32bit kdev_t ? */
+#define EXPORT_HASH(dev)	((dev) & (NFSCLNT_EXPMAX - 1))
+#define EXPORT_FSID_HASH(fsid)	((fsid) & (NFSCLNT_EXPMAX - 1))
+
+struct svc_clnthash {
+	struct svc_clnthash *	h_next;
+	struct in_addr		h_addr;
+	struct svc_client *	h_client;
+};
+static struct svc_clnthash *	clnt_hash[CLIENT_HASHMAX];
+static svc_client *		clients;
+
+static int			hash_lock;
+static int			want_lock;
+static int			hash_count;
+static DECLARE_WAIT_QUEUE_HEAD(	hash_wait );
+
+/*
+ * Find the client's export entry matching xdev/xino.
+ */
+svc_export *
+exp_get(svc_client *clp, kdev_t dev, ino_t ino)
+{
+	struct list_head *head, *p;
+
+	if (!clp)
+		return NULL;
+
+	head = &clp->cl_export[EXPORT_HASH(dev)];
+	list_for_each(p, head) {
+		svc_export *exp = list_entry(p, svc_export, ex_hash);
+		if (exp->ex_ino == ino && exp->ex_dev == dev)
+			return exp;
+	}
+
+	return NULL;
+}
+
+/*
+ * Find the client's export entry matching fsid
+ */
+svc_export *
+exp_get_fsid(svc_client *clp, int fsid)
+{
+	struct list_head *head, *p;
+
+	if (!clp)
+		return NULL;
+
+	head = &clp->cl_expfsid[EXPORT_FSID_HASH(fsid)];
+	list_for_each(p, head) {
+		svc_export *exp = list_entry(p, svc_export, ex_fsid_hash);
+		if (exp->ex_fsid == fsid)
+			return exp;
+	}
+	return NULL;
+}
+
+/*
+ * Find the export entry for a given dentry.  <gam3@acm.org>
+ */
+static svc_export *
+exp_parent(svc_client *clp, kdev_t dev, struct dentry *dentry)
+{
+	struct list_head *head = &clp->cl_export[EXPORT_HASH(dev)];
+	struct list_head *p;
+
+	list_for_each(p,head) {
+		svc_export *exp = list_entry(p, svc_export, ex_hash);
+		if (is_subdir(dentry, exp->ex_dentry))
+			return exp;
+	}
+	return NULL;
+}
+
+/*
+ * Find the child export entry for a given fs. This function is used
+ * only by the export syscall to keep the export tree consistent.
+ * <gam3@acm.org>
+ */
+static svc_export *
+exp_child(svc_client *clp, kdev_t dev, struct dentry *dentry)
+{
+	struct list_head *head = &clp->cl_export[EXPORT_HASH(dev)];
+	struct list_head *p;
+
+
+	list_for_each(p, head) {
+		svc_export *exp = list_entry(p, svc_export, ex_hash);
+		struct dentry *ndentry = exp->ex_dentry;
+
+		if (ndentry && is_subdir(ndentry->d_parent, dentry))
+			return exp;
+	}
+	return NULL;
+}
+
+/* Update parent pointers of all exports */
+static void exp_change_parents(svc_client *clp, svc_export *old, svc_export *new)
+{
+	struct list_head *head = &clp->cl_list;
+	struct list_head *p;
+
+	list_for_each(p, head) {
+		svc_export *exp = list_entry(p, svc_export, ex_list);
+		if (exp->ex_parent == old)
+			exp->ex_parent = new;
+	}
+}
+
+static void exp_fsid_unhash(struct svc_export *exp)
+{
+
+	if ((exp->ex_flags & NFSEXP_FSID) == 0)
+		return;
+
+	list_del_init(&exp->ex_fsid_hash);
+}
+
+static void exp_fsid_hash(struct svc_client *clp, struct svc_export *exp)
+{
+	struct list_head *head;
+
+	if ((exp->ex_flags & NFSEXP_FSID) == 0)
+		return;
+	head = clp->cl_expfsid + EXPORT_FSID_HASH(exp->ex_fsid);
+	list_add(&exp->ex_fsid_hash, head);
+}
+
+/*
+ * Export a file system.
+ */
+int
+exp_export(struct nfsctl_export *nxp)
+{
+	svc_client	*clp;
+	svc_export	*exp = NULL, *parent;
+	svc_export	*fsid_exp;
+	struct nameidata nd;
+	struct inode	*inode = NULL;
+	int		err;
+	kdev_t		dev;
+	ino_t		ino;
+
+	/* Consistency check */
+	err = -EINVAL;
+	if (!exp_verify_string(nxp->ex_path, NFS_MAXPATHLEN) ||
+	    !exp_verify_string(nxp->ex_client, NFSCLNT_IDMAX))
+		goto out;
+
+	dprintk("exp_export called for %s:%s (%x/%ld fl %x).\n",
+			nxp->ex_client, nxp->ex_path,
+			nxp->ex_dev, (long) nxp->ex_ino, nxp->ex_flags);
+
+	/* Try to lock the export table for update */
+	if ((err = exp_writelock()) < 0)
+		goto out;
+
+	/* Look up client info */
+	err = -EINVAL;
+	if (!(clp = exp_getclientbyname(nxp->ex_client)))
+		goto out_unlock;
+
+
+	/* Look up the dentry */
+	err = 0;
+	if (path_init(nxp->ex_path, LOOKUP_POSITIVE, &nd))
+		err = path_walk(nxp->ex_path, &nd);
+	if (err)
+		goto out_unlock;
+
+	inode = nd.dentry->d_inode;
+	dev = inode->i_dev;
+	ino = inode->i_ino;
+	err = -EINVAL;
+
+	exp = exp_get(clp, dev, ino);
+
+	/* must make sure there wont be an ex_fsid clash */
+	if ((nxp->ex_flags & NFSEXP_FSID) &&
+	    (fsid_exp = exp_get_fsid(clp, nxp->ex_dev)) &&
+	    fsid_exp != exp)
+		goto finish;
+
+	if (exp != NULL) {
+		/* just a flags/id/fsid update */
+
+		exp_fsid_unhash(exp);
+		exp->ex_flags    = nxp->ex_flags;
+		exp->ex_anon_uid = nxp->ex_anon_uid;
+		exp->ex_anon_gid = nxp->ex_anon_gid;
+		exp->ex_fsid     = nxp->ex_dev;
+		exp_fsid_hash(clp, exp);
+		err = 0;
+		goto finish;
+	}
+
+	/* We currently export only dirs and regular files.
+	 * This is what umountd does.
+	 */
+	err = -ENOTDIR;
+	if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode))
+		goto finish;
+
+	err = -EINVAL;
+	/* There are two requirements on a filesystem to be exportable.
+	 * 1:  We must be able to identify the filesystem from a number.
+	 *       either a device number (so FS_REQUIRES_DEV needed)
+	 *       or an FSID number (so NFSEXP_FSID needed).
+	 * 2:  We must be able to find an inode from a filehandle.
+	 *       either using fh_to_dentry (prefered)
+	 *       or using read_inode (the hack).
+	 */
+	if (!((inode->i_sb->s_type->fs_flags & FS_REQUIRES_DEV)
+	      || (nxp->ex_flags & NFSEXP_FSID))
+	    ||
+	    (inode->i_sb->s_op->read_inode == NULL
+	     && inode->i_sb->s_op->fh_to_dentry == NULL)) {
+		dprintk("exp_export: export of invalid fs type.\n");
+		goto finish;
+	}
+
+	if ((parent = exp_child(clp, dev, nd.dentry)) != NULL) {
+		dprintk("exp_export: export not valid (Rule 3).\n");
+		goto finish;
+	}
+	/* Is this is a sub-export, must be a proper subset of FS */
+	if ((parent = exp_parent(clp, dev, nd.dentry)) != NULL) {
+		dprintk("exp_export: sub-export not valid (Rule 2).\n");
+		goto finish;
+	}
+
+	err = -ENOMEM;
+	if (!(exp = kmalloc(sizeof(*exp), GFP_USER)))
+		goto finish;
+	dprintk("nfsd: created export entry %p for client %p\n", exp, clp);
+
+	strcpy(exp->ex_path, nxp->ex_path);
+	exp->ex_client = clp;
+	exp->ex_parent = parent;
+	exp->ex_dentry = dget(nd.dentry);
+	exp->ex_mnt = mntget(nd.mnt);
+	exp->ex_flags = nxp->ex_flags;
+	exp->ex_dev = dev;
+	exp->ex_ino = ino;
+	exp->ex_anon_uid = nxp->ex_anon_uid;
+	exp->ex_anon_gid = nxp->ex_anon_gid;
+	exp->ex_fsid = nxp->ex_dev;
+
+
+	/* Update parent pointers of all exports */
+	if (parent)
+		exp_change_parents(clp, parent, exp);
+
+	list_add(&exp->ex_hash, clp->cl_export + EXPORT_HASH(dev));
+	list_add_tail(&exp->ex_list, &clp->cl_list);
+
+	exp_fsid_hash(clp, exp);
+
+	err = 0;
+
+finish:
+	path_release(&nd);
+out_unlock:
+	exp_unlock();
+out:
+	return err;
+}
+
+/*
+ * Unexport a file system. The export entry has already
+ * been removed from the client's list of exported fs's.
+ */
+static void
+exp_do_unexport(svc_export *unexp)
+{
+	struct dentry	*dentry;
+	struct vfsmount *mnt;
+	struct inode	*inode;
+
+	list_del(&unexp->ex_hash);
+	list_del(&unexp->ex_list);
+	exp_fsid_unhash(unexp);
+
+	exp_change_parents(unexp->ex_client, unexp, unexp->ex_parent);
+
+	dentry = unexp->ex_dentry;
+	mnt = unexp->ex_mnt;
+	inode = dentry->d_inode;
+	if (unexp->ex_dev != inode->i_dev || unexp->ex_ino != inode->i_ino)
+		printk(KERN_WARNING "nfsd: bad dentry in unexport!\n");
+	dput(dentry);
+	mntput(mnt);
+
+	kfree(unexp);
+}
+
+/*
+ * Revoke all exports for a given client.
+ * This may look very awkward, but we have to do it this way in order
+ * to avoid race conditions (aka mind the parent pointer).
+ */
+static void
+exp_unexport_all(svc_client *clp)
+{
+	struct list_head *p = &clp->cl_list;
+
+	dprintk("unexporting all fs's for clnt %p\n", clp);
+
+	while (!list_empty(p)) {
+		svc_export *exp = list_entry(p->next, svc_export, ex_list);
+		exp_do_unexport(exp);
+	}
+}
+
+/*
+ * unexport syscall.
+ */
+int
+exp_unexport(struct nfsctl_export *nxp)
+{
+	svc_client	*clp;
+	int		err;
+
+	/* Consistency check */
+	if (!exp_verify_string(nxp->ex_client, NFSCLNT_IDMAX))
+		return -EINVAL;
+
+	if ((err = exp_writelock()) < 0)
+		goto out;
+
+	err = -EINVAL;
+	clp = exp_getclientbyname(nxp->ex_client);
+	if (clp) {
+		svc_export *exp = exp_get(clp, nxp->ex_dev, nxp->ex_ino);
+		if (exp) {
+			exp_do_unexport(exp);
+			err = 0;
+		}
+	}
+
+	exp_unlock();
+out:
+	return err;
+}
+
+/*
+ * Obtain the root fh on behalf of a client.
+ * This could be done in user space, but I feel that it adds some safety
+ * since its harder to fool a kernel module than a user space program.
+ */
+int
+exp_rootfh(struct svc_client *clp, kdev_t dev, ino_t ino,
+	   char *path, struct knfsd_fh *f, int maxsize)
+{
+	struct svc_export	*exp;
+	struct nameidata	nd;
+	struct inode		*inode;
+	struct svc_fh		fh;
+	int			err;
+
+	err = -EPERM;
+	if (path) {
+		if (path_init(path, LOOKUP_POSITIVE, &nd) &&
+		    path_walk(path, &nd)) {
+			printk("nfsd: exp_rootfh path not found %s", path);
+			return err;
+		}
+		dev = nd.dentry->d_inode->i_dev;
+		ino = nd.dentry->d_inode->i_ino;
+	
+		dprintk("nfsd: exp_rootfh(%s [%p] %s:%x/%ld)\n",
+		         path, nd.dentry, clp->cl_ident, dev, (long) ino);
+		exp = exp_parent(clp, dev, nd.dentry);
+	} else {
+		dprintk("nfsd: exp_rootfh(%s:%x/%ld)\n",
+		         clp->cl_ident, dev, (long) ino);
+		if ((exp = exp_get(clp, dev, ino))) {
+			nd.mnt = mntget(exp->ex_mnt);
+			nd.dentry = dget(exp->ex_dentry);
+		}
+	}
+	if (!exp) {
+		dprintk("nfsd: exp_rootfh export not found.\n");
+		goto out;
+	}
+
+	inode = nd.dentry->d_inode;
+	if (!inode) {
+		printk("exp_rootfh: Aieee, NULL d_inode\n");
+		goto out;
+	}
+	if (inode->i_dev != dev || inode->i_ino != ino) {
+		printk("exp_rootfh: Aieee, ino/dev mismatch\n");
+		printk("exp_rootfh: arg[dev(%x):ino(%ld)]"
+		       " inode[dev(%x):ino(%ld)]\n",
+		       dev, (long) ino, inode->i_dev, (long) inode->i_ino);
+	}
+
+	/*
+	 * fh must be initialized before calling fh_compose
+	 */
+	fh_init(&fh, maxsize);
+	if (fh_compose(&fh, exp, dget(nd.dentry), NULL))
+		err = -EINVAL;
+	else
+		err = 0;
+	memcpy(f, &fh.fh_handle, sizeof(struct knfsd_fh));
+	fh_put(&fh);
+
+out:
+	if (path)
+		path_release(&nd);
+	return err;
+}
+
+/*
+ * Hashtable locking. Write locks are placed only by user processes
+ * wanting to modify export information.
+ */
+void
+exp_readlock(void)
+{
+	while (hash_lock || want_lock)
+		sleep_on(&hash_wait);
+	hash_count++;
+}
+
+int
+exp_writelock(void)
+{
+	/* fast track */
+	if (!hash_count && !hash_lock) {
+	lock_it:
+		hash_lock = 1;
+		return 0;
+	}
+
+	current->sigpending = 0;
+	want_lock++;
+	while (hash_count || hash_lock) {
+		interruptible_sleep_on(&hash_wait);
+		if (signal_pending(current))
+			break;
+	}
+	want_lock--;
+
+	/* restore the task's signals */
+	spin_lock_irq(&current->sigmask_lock);
+	recalc_sigpending(current);
+	spin_unlock_irq(&current->sigmask_lock);
+
+	if (!hash_count && !hash_lock)
+		goto lock_it;
+	return -EINTR;
+}
+
+void
+exp_unlock(void)
+{
+	if (!hash_count && !hash_lock)
+		printk(KERN_WARNING "exp_unlock: not locked!\n");
+	if (hash_count)
+		hash_count--;
+	else
+		hash_lock = 0;
+	wake_up(&hash_wait);
+}
+
+/*
+ * Find a valid client given an inet address. We always move the most
+ * recently used client to the front of the hash chain to speed up
+ * future lookups.
+ * Locking against other processes is the responsibility of the caller.
+ */
+struct svc_client *
+exp_getclient(struct sockaddr_in *sin)
+{
+	struct svc_clnthash	**hp, **head, *tmp;
+	unsigned long		addr = sin->sin_addr.s_addr;
+
+	head = &clnt_hash[CLIENT_HASH(addr)];
+
+	for (hp = head; (tmp = *hp) != NULL; hp = &(tmp->h_next)) {
+		if (tmp->h_addr.s_addr == addr) {
+			/* Move client to the front */
+			if (head != hp) {
+				*hp = tmp->h_next;
+				tmp->h_next = *head;
+				*head = tmp;
+			}
+
+			return tmp->h_client;
+		}
+	}
+
+	return NULL;
+}
+
+/*
+ * Find a client given its identifier.
+ */
+static svc_client *
+exp_getclientbyname(char *ident)
+{
+	svc_client *	clp;
+
+	for (clp = clients; clp; clp = clp->cl_next) {
+		if (!strcmp(clp->cl_ident, ident))
+			return clp;
+	}
+	return NULL;
+}
+
+/* Iterator */
+
+static void *e_start(struct seq_file *m, loff_t *pos)
+{
+	loff_t n = *pos;
+	unsigned client, export;
+	svc_client *clp;
+	struct list_head *p;
+	
+	lock_kernel();
+	exp_readlock();
+	if (!n--)
+		return (void *)1;
+	client = n >> 32;
+	export = n & ((1LL<<32) - 1);
+	for (clp = clients; client && clp; clp = clp->cl_next, client--)
+		;
+	if (!clp)
+		return NULL;
+	list_for_each(p, &clp->cl_list)
+		if (!export--)
+			return list_entry(p, svc_export, ex_list);
+	n &= ~((1LL<<32) - 1);
+	do {
+		clp = clp->cl_next;
+		n += 1LL<<32;
+	} while(clp && list_empty(&clp->cl_list));
+	if (!clp)
+		return NULL;
+	*pos = n+1;
+	return list_entry(clp->cl_list.next, svc_export, ex_list);
+}
+
+static void *e_next(struct seq_file *m, void *p, loff_t *pos)
+{
+	svc_export *exp = p;
+	svc_client *clp;
+
+	if (p == (void *)1)
+		clp = clients;
+	else if (exp->ex_list.next == &exp->ex_client->cl_list) {
+		clp = exp->ex_client->cl_next;
+		*pos += 1LL<<32;
+	} else {
+		++*pos;
+		return list_entry(exp->ex_list.next, svc_export, ex_list);
+	}
+	*pos &= ~((1LL<<32) - 1);
+	while (clp && list_empty(&clp->cl_list)) {
+		clp = clp->cl_next;
+		*pos += 1LL<<32;
+	}
+	if (!clp)
+		return NULL;
+	++*pos;
+	return list_entry(clp->cl_list.next, svc_export, ex_list);
+}
+
+static void e_stop(struct seq_file *m, void *p)
+{
+	exp_unlock();
+	unlock_kernel();
+}
+
+struct flags {
+	int flag;
+	char *name[2];
+} expflags[] = {
+	{ NFSEXP_READONLY, {"ro", "rw"}},
+	{ NFSEXP_INSECURE_PORT, {"insecure", ""}},
+	{ NFSEXP_ROOTSQUASH, {"root_squash", "no_root_squash"}},
+	{ NFSEXP_ALLSQUASH, {"all_squash", ""}},
+	{ NFSEXP_ASYNC, {"async", "sync"}},
+	{ NFSEXP_GATHERED_WRITES, {"wdelay", "no_wdelay"}},
+	{ NFSEXP_UIDMAP, {"uidmap", ""}},
+	{ NFSEXP_KERBEROS, { "kerberos", ""}},
+	{ NFSEXP_SUNSECURE, { "sunsecure", ""}},
+	{ NFSEXP_NOHIDE, {"nohide", ""}},
+	{ NFSEXP_NOSUBTREECHECK, {"no_subtree_check", ""}},
+	{ NFSEXP_NOAUTHNLM, {"insecure_locks", ""}},
+#ifdef MSNFS
+	{ NFSEXP_MSNFS, {"msnfs", ""}},
+#endif
+	{ 0, {"", ""}}
+};
+
+static void exp_flags(struct seq_file *m, int flag, int fsid)
+{
+	int first = 0;
+	struct flags *flg;
+
+	for (flg = expflags; flg->flag; flg++) {
+		int state = (flg->flag & flag)?0:1;
+		if (*flg->name[state])
+			seq_printf(m, "%s%s", first++?",":"", flg->name[state]);
+	}
+	if (flag & NFSEXP_FSID)
+		seq_printf(m, "%sfsid=%d", first++?",":"", fsid);
+}
+
+static inline void mangle(struct seq_file *m, const char *s)
+{
+	seq_escape(m, s, " \t\n\\");
+}
+
+static int e_show(struct seq_file *m, void *p)
+{
+	struct svc_export *exp = p;
+	struct svc_client *clp;
+	int j, first = 0;
+
+	if (p == (void *)1) {
+		seq_puts(m, "# Version 1.1\n");
+		seq_puts(m, "# Path Client(Flags) # IPs\n");
+		return 0;
+	}
+
+	clp = exp->ex_client;
+
+	mangle(m, exp->ex_path);
+	seq_putc(m, '\t');
+	mangle(m, clp->cl_ident);
+	seq_putc(m, '(');
+	exp_flags(m, exp->ex_flags, exp->ex_fsid);
+	seq_puts(m, ") # ");
+	for (j = 0; j < clp->cl_naddr; j++) {
+		struct svc_clnthash **hp, **head, *tmp;
+		struct in_addr addr = clp->cl_addr[j]; 
+
+		head = &clnt_hash[CLIENT_HASH(addr.s_addr)];
+		for (hp = head; (tmp = *hp) != NULL; hp = &(tmp->h_next)) {
+			if (tmp->h_addr.s_addr == addr.s_addr)
+				break;
+		}
+		if (tmp) {
+			if (first++)
+				seq_putc(m, ' ');
+			if (tmp->h_client != clp)
+				seq_putc(m, '(');
+			seq_printf(m, "%d.%d.%d.%d",
+				htonl(addr.s_addr) >> 24 & 0xff,
+				htonl(addr.s_addr) >> 16 & 0xff,
+				htonl(addr.s_addr) >>  8 & 0xff,
+				htonl(addr.s_addr) >>  0 & 0xff);
+			if (tmp->h_client != clp)
+				seq_putc(m, ')');
+		}
+	}
+	seq_putc(m, '\n');
+	return 0;
+}
+
+struct seq_operations nfs_exports_op = {
+	start:	e_start,
+	next:	e_next,
+	stop:	e_stop,
+	show:	e_show,
+};
+
+/*
+ * Add or modify a client.
+ * Change requests may involve the list of host addresses. The list of
+ * exports and possibly existing uid maps are left untouched.
+ */
+int
+exp_addclient(struct nfsctl_client *ncp)
+{
+	struct svc_clnthash *	ch[NFSCLNT_ADDRMAX];
+	svc_client *		clp;
+	int			i, err, change = 0, ilen;
+
+	/* First, consistency check. */
+	err = -EINVAL;
+	if (!(ilen = exp_verify_string(ncp->cl_ident, NFSCLNT_IDMAX)))
+		goto out;
+	if (ncp->cl_naddr > NFSCLNT_ADDRMAX)
+		goto out;
+
+	/* Lock the hashtable */
+	if ((err = exp_writelock()) < 0)
+		goto out;
+
+	/* First check if this is a change request for a client. */
+	for (clp = clients; clp; clp = clp->cl_next)
+		if (!strcmp(clp->cl_ident, ncp->cl_ident))
+			break;
+
+	err = -ENOMEM;
+	if (clp) {
+		change = 1;
+	} else {
+		if (!(clp = kmalloc(sizeof(*clp), GFP_KERNEL)))
+			goto out_unlock;
+		memset(clp, 0, sizeof(*clp));
+		for (i = 0; i < NFSCLNT_EXPMAX; i++) {
+			INIT_LIST_HEAD(&clp->cl_export[i]);
+			INIT_LIST_HEAD(&clp->cl_expfsid[i]);
+		}
+		INIT_LIST_HEAD(&clp->cl_list);
+
+		dprintk("created client %s (%p)\n", ncp->cl_ident, clp);
+
+		strcpy(clp->cl_ident, ncp->cl_ident);
+		clp->cl_idlen = ilen;
+	}
+
+	/* Allocate hash buckets */
+	for (i = 0; i < ncp->cl_naddr; i++) {
+		ch[i] = kmalloc(sizeof(struct svc_clnthash), GFP_KERNEL);
+		if (!ch[i]) {
+			while (i--)
+				kfree(ch[i]);
+			if (!change)
+				kfree(clp);
+			goto out_unlock;
+		}
+	}
+
+	/* Copy addresses. */
+	for (i = 0; i < ncp->cl_naddr; i++) {
+		clp->cl_addr[i] = ncp->cl_addrlist[i];
+	}
+	clp->cl_naddr = ncp->cl_naddr;
+
+	/* Remove old client hash entries. */
+	if (change)
+		exp_unhashclient(clp);
+
+	/* Insert client into hashtable. */
+	for (i = 0; i < ncp->cl_naddr; i++) {
+		struct in_addr	addr = clp->cl_addr[i];
+		int		hash;
+
+		hash = CLIENT_HASH(addr.s_addr);
+		ch[i]->h_client = clp;
+		ch[i]->h_addr = addr;
+		ch[i]->h_next = clnt_hash[hash];
+		clnt_hash[hash] = ch[i];
+	}
+
+	if (!change) {
+		clp->cl_next = clients;
+		clients = clp;
+	}
+	err = 0;
+
+out_unlock:
+	exp_unlock();
+out:
+	return err;
+}
+
+/*
+ * Delete a client given an identifier.
+ */
+int
+exp_delclient(struct nfsctl_client *ncp)
+{
+	svc_client	**clpp, *clp;
+	int		err;
+
+	err = -EINVAL;
+	if (!exp_verify_string(ncp->cl_ident, NFSCLNT_IDMAX))
+		goto out;
+
+	/* Lock the hashtable */
+	if ((err = exp_writelock()) < 0)
+		goto out;
+
+	err = -EINVAL;
+	for (clpp = &clients; (clp = *clpp); clpp = &(clp->cl_next))
+		if (!strcmp(ncp->cl_ident, clp->cl_ident))
+			break;
+
+	if (clp) {
+		*clpp = clp->cl_next;
+		exp_freeclient(clp);
+		err = 0;
+	}
+
+	exp_unlock();
+out:
+	return err;
+}
+
+/*
+ * Free a client. The caller has already removed it from the client list.
+ */
+static void
+exp_freeclient(svc_client *clp)
+{
+	exp_unhashclient(clp);
+
+	/* umap_free(&(clp->cl_umap)); */
+	exp_unexport_all(clp);
+	nfsd_lockd_unexport(clp);
+	kfree (clp);
+}
+
+/*
+ * Remove client from hashtable. We first collect all hashtable
+ * entries and free them in one go.
+ * The hash table must be writelocked by the caller.
+ */
+static void
+exp_unhashclient(svc_client *clp)
+{
+	struct svc_clnthash	**hpp, *hp, *ch[NFSCLNT_ADDRMAX];
+	int			i, count, err;
+
+again:
+	err = 0;
+	for (i = 0, count = 0; i < CLIENT_HASHMAX && !err; i++) {
+		hpp = clnt_hash + i;
+		while ((hp = *hpp) && !err) {
+			if (hp->h_client == clp) {
+				*hpp = hp->h_next;
+				ch[count++] = hp;
+				err = (count >= NFSCLNT_ADDRMAX);
+			} else {
+				hpp = &(hp->h_next);
+			}
+		}
+	}
+	if (count != clp->cl_naddr)
+		printk(KERN_WARNING "nfsd: bad address count in freeclient!\n");
+	if (err)
+		goto again;
+	for (i = 0; i < count; i++)
+		kfree (ch[i]);
+}
+
+/*
+ * Lockd is shutting down and tells us to unregister all clients
+ */
+void
+exp_nlmdetach(void)
+{
+	struct svc_client	*clp;
+
+	exp_readlock();
+	for (clp = clients; clp; clp = clp->cl_next)
+		nfsd_lockd_unexport(clp);
+	exp_unlock();
+}
+
+/*
+ * Verify that string is non-empty and does not exceed max length.
+ */
+static int
+exp_verify_string(char *cp, int max)
+{
+	int	i;
+
+	for (i = 0; i < max; i++)
+		if (!cp[i])
+			return i;
+	cp[i] = 0;
+	printk(KERN_NOTICE "nfsd: couldn't validate string %s\n", cp);
+	return 0;
+}
+
+/*
+ * Initialize the exports module.
+ */
+void
+nfsd_export_init(void)
+{
+	int		i;
+
+	dprintk("nfsd: initializing export module.\n");
+
+	for (i = 0; i < CLIENT_HASHMAX; i++)
+		clnt_hash[i] = NULL;
+	clients = NULL;
+
+}
+
+/*
+ * Shutdown the exports module.
+ */
+void
+nfsd_export_shutdown(void)
+{
+	int	i;
+
+	dprintk("nfsd: shutting down export module.\n");
+
+	if (exp_writelock() < 0) {
+		printk(KERN_WARNING "Weird: hashtable locked in exp_shutdown");
+		return;
+	}
+	for (i = 0; i < CLIENT_HASHMAX; i++) {
+		while (clnt_hash[i])
+			exp_freeclient(clnt_hash[i]->h_client);
+	}
+	clients = NULL; /* we may be restarted before the module unloads */
+	
+	exp_unlock();
+	dprintk("nfsd: export shutdown complete.\n");
+}
diff --git a/fs/nfsd/lockd.c b/fs/nfsd/lockd.c
new file mode 100644
index 00000000000000..5bed6b8ae32080
--- /dev/null
+++ b/fs/nfsd/lockd.c
@@ -0,0 +1,93 @@
+/*
+ * linux/fs/nfsd/lockd.c
+ *
+ * This file contains all the stubs needed when communicating with lockd.
+ * This level of indirection is necessary so we can run nfsd+lockd without
+ * requiring the nfs client to be compiled in/loaded, and vice versa.
+ *
+ * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
+ */
+
+#include <linux/types.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/svc.h>
+#include <linux/nfsd/nfsd.h>
+#include <linux/lockd/bind.h>
+
+#define NFSDDBG_FACILITY		NFSDDBG_LOCKD
+
+/*
+ * Note: we hold the dentry use count while the file is open.
+ */
+static u32
+nlm_fopen(struct svc_rqst *rqstp, struct nfs_fh *f, struct file *filp)
+{
+	u32		nfserr;
+	struct svc_fh	fh;
+
+	/* must initialize before using! but maxsize doesn't matter */
+	fh_init(&fh,0);
+	fh.fh_handle.fh_size = f->size;
+	memcpy((char*)&fh.fh_handle.fh_base, f->data, f->size);
+	fh.fh_export = NULL;
+
+	nfserr = nfsd_open(rqstp, &fh, S_IFREG, MAY_LOCK, filp);
+	if (!nfserr) {
+		dget(filp->f_dentry);
+		mntget(filp->f_vfsmnt);
+	}
+	fh_put(&fh);
+ 	/* nlm and nfsd don't share error codes.
+	 * we invent: 0 = no error
+	 *            1 = stale file handle
+	 *	      2 = other error
+	 */
+	switch (nfserr) {
+	case nfs_ok:
+		return 0;
+	case nfserr_stale:
+		return 1;
+	default:
+		return 2;
+	}
+}
+
+static void
+nlm_fclose(struct file *filp)
+{
+	nfsd_close(filp);
+	dput(filp->f_dentry);
+	mntput(filp->f_vfsmnt);
+}
+
+struct nlmsvc_binding		nfsd_nlm_ops = {
+	exp_readlock,		/* lock export table for reading */
+	exp_unlock,		/* unlock export table */
+	exp_getclient,		/* look up NFS client */
+	nlm_fopen,		/* open file for locking */
+	nlm_fclose,		/* close file */
+	exp_nlmdetach,		/* lockd shutdown notification */
+};
+
+/*
+ * When removing an NFS client entry, notify lockd that it is gone.
+ * FIXME: We should do the same when unexporting an NFS volume.
+ */
+void
+nfsd_lockd_unexport(struct svc_client *clnt)
+{
+	nlmsvc_invalidate_client(clnt);
+}
+
+void
+nfsd_lockd_init(void)
+{
+	dprintk("nfsd: initializing lockd\n");
+	nlmsvc_ops = &nfsd_nlm_ops;
+}
+
+void
+nfsd_lockd_shutdown(void)
+{
+	nlmsvc_ops = NULL;
+}
diff --git a/fs/nfsd/nfs3proc.c b/fs/nfsd/nfs3proc.c
new file mode 100644
index 00000000000000..5fc2f6480ef87f
--- /dev/null
+++ b/fs/nfsd/nfs3proc.c
@@ -0,0 +1,692 @@
+/*
+ * linux/fs/nfsd/nfs3proc.c
+ *
+ * Process version 3 NFS requests.
+ *
+ * Copyright (C) 1996, 1997, 1998 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#include <linux/linkage.h>
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <linux/fs.h>
+#include <linux/ext2_fs.h>
+#include <linux/stat.h>
+#include <linux/fcntl.h>
+#include <linux/net.h>
+#include <linux/in.h>
+#include <linux/version.h>
+#include <linux/unistd.h>
+#include <linux/slab.h>
+#include <linux/major.h>
+
+#include <linux/sunrpc/svc.h>
+#include <linux/nfsd/nfsd.h>
+#include <linux/nfsd/cache.h>
+#include <linux/nfsd/xdr3.h>
+#include <linux/nfs3.h>
+
+#define NFSDDBG_FACILITY		NFSDDBG_PROC
+
+#define RETURN_STATUS(st)	{ resp->status = (st); return (st); }
+
+static int	nfs3_ftypes[] = {
+	0,			/* NF3NON */
+	S_IFREG,		/* NF3REG */
+	S_IFDIR,		/* NF3DIR */
+	S_IFBLK,		/* NF3BLK */
+	S_IFCHR,		/* NF3CHR */
+	S_IFLNK,		/* NF3LNK */
+	S_IFSOCK,		/* NF3SOCK */
+	S_IFIFO,		/* NF3FIFO */
+};
+
+/*
+ * Reserve room in the send buffer
+ */
+static void
+svcbuf_reserve(struct svc_buf *buf, u32 **ptr, int *len, int nr)
+{
+	*ptr = buf->buf + nr;
+	*len = buf->buflen - buf->len - nr;
+}
+
+/*
+ * NULL call.
+ */
+static int
+nfsd3_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
+{
+	return nfs_ok;
+}
+
+/*
+ * Get a file's attributes
+ */
+static int
+nfsd3_proc_getattr(struct svc_rqst *rqstp, struct nfsd_fhandle  *argp,
+					   struct nfsd3_attrstat *resp)
+{
+	int	nfserr;
+
+	dprintk("nfsd: GETATTR(3)  %s\n",
+				SVCFH_fmt(&argp->fh));
+
+	fh_copy(&resp->fh, &argp->fh);
+	nfserr = fh_verify(rqstp, &resp->fh, 0, MAY_NOP);
+	RETURN_STATUS(nfserr);
+}
+
+/*
+ * Set a file's attributes
+ */
+static int
+nfsd3_proc_setattr(struct svc_rqst *rqstp, struct nfsd3_sattrargs *argp,
+					   struct nfsd3_attrstat  *resp)
+{
+	int	nfserr;
+
+	dprintk("nfsd: SETATTR(3)  %s\n",
+				SVCFH_fmt(&argp->fh));
+
+	fh_copy(&resp->fh, &argp->fh);
+	nfserr = nfsd_setattr(rqstp, &resp->fh, &argp->attrs,
+			      argp->check_guard, argp->guardtime);
+	RETURN_STATUS(nfserr);
+}
+
+/*
+ * Look up a path name component
+ */
+static int
+nfsd3_proc_lookup(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
+					  struct nfsd3_diropres  *resp)
+{
+	int	nfserr;
+
+	dprintk("nfsd: LOOKUP(3)   %s %.*s\n",
+				SVCFH_fmt(&argp->fh),
+				argp->len,
+				argp->name);
+
+	fh_copy(&resp->dirfh, &argp->fh);
+	fh_init(&resp->fh, NFS3_FHSIZE);
+
+	nfserr = nfsd_lookup(rqstp, &resp->dirfh,
+				    argp->name,
+				    argp->len,
+				    &resp->fh);
+	RETURN_STATUS(nfserr);
+}
+
+/*
+ * Check file access
+ */
+static int
+nfsd3_proc_access(struct svc_rqst *rqstp, struct nfsd3_accessargs *argp,
+					  struct nfsd3_accessres *resp)
+{
+	int	nfserr;
+
+	dprintk("nfsd: ACCESS(3)   %s 0x%x\n",
+				SVCFH_fmt(&argp->fh),
+				argp->access);
+
+	fh_copy(&resp->fh, &argp->fh);
+	resp->access = argp->access;
+	nfserr = nfsd_access(rqstp, &resp->fh, &resp->access);
+	RETURN_STATUS(nfserr);
+}
+
+/*
+ * Read a symlink.
+ */
+static int
+nfsd3_proc_readlink(struct svc_rqst *rqstp, struct nfsd_fhandle     *argp,
+					   struct nfsd3_readlinkres *resp)
+{
+	u32		*path;
+	int		dummy, nfserr;
+
+	dprintk("nfsd: READLINK(3) %s\n", SVCFH_fmt(&argp->fh));
+
+	/* Reserve room for status, post_op_attr, and path length */
+	svcbuf_reserve(&rqstp->rq_resbuf, &path, &dummy,
+				1 + NFS3_POST_OP_ATTR_WORDS + 1);
+
+	/* Read the symlink. */
+	fh_copy(&resp->fh, &argp->fh);
+	resp->len = NFS3_MAXPATHLEN;
+	nfserr = nfsd_readlink(rqstp, &resp->fh, (char *) path, &resp->len);
+	RETURN_STATUS(nfserr);
+}
+
+/*
+ * Read a portion of a file.
+ */
+static int
+nfsd3_proc_read(struct svc_rqst *rqstp, struct nfsd3_readargs *argp,
+				        struct nfsd3_readres  *resp)
+{
+	u32 *	buffer;
+	int	nfserr, avail;
+
+	dprintk("nfsd: READ(3) %s %lu bytes at %lu\n",
+				SVCFH_fmt(&argp->fh),
+				(unsigned long) argp->count,
+				(unsigned long) argp->offset);
+
+	/* Obtain buffer pointer for payload.
+	 * 1 (status) + 22 (post_op_attr) + 1 (count) + 1 (eof)
+	 * + 1 (xdr opaque byte count) = 26
+	 */
+	svcbuf_reserve(&rqstp->rq_resbuf, &buffer, &avail,
+			1 + NFS3_POST_OP_ATTR_WORDS + 3);
+
+	resp->count = argp->count;
+	if ((avail << 2) < resp->count)
+		resp->count = avail << 2;
+
+	svc_reserve(rqstp, ((1 + NFS3_POST_OP_ATTR_WORDS + 3)<<2) + argp->count +4);
+
+	fh_copy(&resp->fh, &argp->fh);
+	nfserr = nfsd_read(rqstp, &resp->fh,
+				  argp->offset,
+				  (char *) buffer,
+				  &resp->count);
+	if (nfserr == 0) {
+		struct inode	*inode = resp->fh.fh_dentry->d_inode;
+
+		resp->eof = (argp->offset + resp->count) >= inode->i_size;
+	}
+
+	RETURN_STATUS(nfserr);
+}
+
+/*
+ * Write data to a file
+ */
+static int
+nfsd3_proc_write(struct svc_rqst *rqstp, struct nfsd3_writeargs *argp,
+					 struct nfsd3_writeres  *resp)
+{
+	int	nfserr;
+
+	dprintk("nfsd: WRITE(3)    %s %d bytes at %ld%s\n",
+				SVCFH_fmt(&argp->fh),
+				argp->len,
+				(unsigned long) argp->offset,
+				argp->stable? " stable" : "");
+
+	fh_copy(&resp->fh, &argp->fh);
+	resp->committed = argp->stable;
+	nfserr = nfsd_write(rqstp, &resp->fh,
+				   argp->offset,
+				   argp->data,
+				   argp->len,
+				   &resp->committed);
+	resp->count = argp->count;
+	RETURN_STATUS(nfserr);
+}
+
+/*
+ * With NFSv3, CREATE processing is a lot easier than with NFSv2.
+ * At least in theory; we'll see how it fares in practice when the
+ * first reports about SunOS compatibility problems start to pour in...
+ */
+static int
+nfsd3_proc_create(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
+					  struct nfsd3_diropres   *resp)
+{
+	svc_fh		*dirfhp, *newfhp = NULL;
+	struct iattr	*attr;
+	u32		nfserr;
+
+	dprintk("nfsd: CREATE(3)   %s %.*s\n",
+				SVCFH_fmt(&argp->fh),
+				argp->len,
+				argp->name);
+
+	dirfhp = fh_copy(&resp->dirfh, &argp->fh);
+	newfhp = fh_init(&resp->fh, NFS3_FHSIZE);
+	attr   = &argp->attrs;
+
+	/* Get the directory inode */
+	nfserr = fh_verify(rqstp, dirfhp, S_IFDIR, MAY_CREATE);
+	if (nfserr)
+		RETURN_STATUS(nfserr);
+
+	/* Unfudge the mode bits */
+	attr->ia_mode &= ~S_IFMT;
+	if (!(attr->ia_valid & ATTR_MODE)) { 
+		attr->ia_valid |= ATTR_MODE;
+		attr->ia_mode = S_IFREG;
+	} else {
+		attr->ia_mode = (attr->ia_mode & ~S_IFMT) | S_IFREG;
+	}
+
+	/* Now create the file and set attributes */
+	nfserr = nfsd_create_v3(rqstp, dirfhp, argp->name, argp->len,
+				attr, newfhp,
+				argp->createmode, argp->verf);
+
+	RETURN_STATUS(nfserr);
+}
+
+/*
+ * Make directory. This operation is not idempotent.
+ */
+static int
+nfsd3_proc_mkdir(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
+					 struct nfsd3_diropres   *resp)
+{
+	int	nfserr;
+
+	dprintk("nfsd: MKDIR(3)    %s %.*s\n",
+				SVCFH_fmt(&argp->fh),
+				argp->len,
+				argp->name);
+
+	argp->attrs.ia_valid &= ~ATTR_SIZE;
+	fh_copy(&resp->dirfh, &argp->fh);
+	fh_init(&resp->fh, NFS3_FHSIZE);
+	nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
+				    &argp->attrs, S_IFDIR, 0, &resp->fh);
+
+	RETURN_STATUS(nfserr);
+}
+
+static int
+nfsd3_proc_symlink(struct svc_rqst *rqstp, struct nfsd3_symlinkargs *argp,
+					   struct nfsd3_diropres    *resp)
+{
+	int	nfserr;
+
+	dprintk("nfsd: SYMLINK(3)  %s %.*s -> %.*s\n",
+				SVCFH_fmt(&argp->ffh),
+				argp->flen, argp->fname,
+				argp->tlen, argp->tname);
+
+	fh_copy(&resp->dirfh, &argp->ffh);
+	fh_init(&resp->fh, NFS3_FHSIZE);
+	nfserr = nfsd_symlink(rqstp, &resp->dirfh, argp->fname, argp->flen,
+						   argp->tname, argp->tlen,
+						   &resp->fh, &argp->attrs);
+	RETURN_STATUS(nfserr);
+}
+
+/*
+ * Make socket/fifo/device.
+ */
+static int
+nfsd3_proc_mknod(struct svc_rqst *rqstp, struct nfsd3_mknodargs *argp,
+					 struct nfsd3_diropres  *resp)
+{
+	int	nfserr, type;
+	dev_t	rdev = 0;
+
+	dprintk("nfsd: MKNOD(3)    %s %.*s\n",
+				SVCFH_fmt(&argp->fh),
+				argp->len,
+				argp->name);
+
+	fh_copy(&resp->dirfh, &argp->fh);
+	fh_init(&resp->fh, NFS3_FHSIZE);
+
+	if (argp->ftype == 0 || argp->ftype >= NF3BAD)
+		RETURN_STATUS(nfserr_inval);
+	if (argp->ftype == NF3CHR || argp->ftype == NF3BLK) {
+		if ((argp->ftype == NF3CHR && argp->major >= MAX_CHRDEV)
+		    || (argp->ftype == NF3BLK && argp->major >= MAX_BLKDEV)
+		    || argp->minor > 0xFF)
+			RETURN_STATUS(nfserr_inval);
+		rdev = MKDEV(argp->major, argp->minor);
+	} else
+		if (argp->ftype != NF3SOCK && argp->ftype != NF3FIFO)
+			RETURN_STATUS(nfserr_inval);
+
+	type = nfs3_ftypes[argp->ftype];
+	nfserr = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
+				    &argp->attrs, type, rdev, &resp->fh);
+
+	RETURN_STATUS(nfserr);
+}
+
+/*
+ * Remove file/fifo/socket etc.
+ */
+static int
+nfsd3_proc_remove(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
+					  struct nfsd3_attrstat  *resp)
+{
+	int	nfserr;
+
+	dprintk("nfsd: REMOVE(3)   %s %.*s\n",
+				SVCFH_fmt(&argp->fh),
+				argp->len,
+				argp->name);
+
+	/* Unlink. -S_IFDIR means file must not be a directory */
+	fh_copy(&resp->fh, &argp->fh);
+	nfserr = nfsd_unlink(rqstp, &resp->fh, -S_IFDIR, argp->name, argp->len);
+	RETURN_STATUS(nfserr);
+}
+
+/*
+ * Remove a directory
+ */
+static int
+nfsd3_proc_rmdir(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
+					 struct nfsd3_attrstat  *resp)
+{
+	int	nfserr;
+
+	dprintk("nfsd: RMDIR(3)    %s %.*s\n",
+				SVCFH_fmt(&argp->fh),
+				argp->len,
+				argp->name);
+
+	fh_copy(&resp->fh, &argp->fh);
+	nfserr = nfsd_unlink(rqstp, &resp->fh, S_IFDIR, argp->name, argp->len);
+	RETURN_STATUS(nfserr);
+}
+
+static int
+nfsd3_proc_rename(struct svc_rqst *rqstp, struct nfsd3_renameargs *argp,
+					  struct nfsd3_renameres  *resp)
+{
+	int	nfserr;
+
+	dprintk("nfsd: RENAME(3)   %s %.*s ->\n",
+				SVCFH_fmt(&argp->ffh),
+				argp->flen,
+				argp->fname);
+	dprintk("nfsd: -> %s %.*s\n",
+				SVCFH_fmt(&argp->tfh),
+				argp->tlen,
+				argp->tname);
+
+	fh_copy(&resp->ffh, &argp->ffh);
+	fh_copy(&resp->tfh, &argp->tfh);
+	nfserr = nfsd_rename(rqstp, &resp->ffh, argp->fname, argp->flen,
+				    &resp->tfh, argp->tname, argp->tlen);
+	RETURN_STATUS(nfserr);
+}
+
+static int
+nfsd3_proc_link(struct svc_rqst *rqstp, struct nfsd3_linkargs *argp,
+					struct nfsd3_linkres  *resp)
+{
+	int	nfserr;
+
+	dprintk("nfsd: LINK(3)     %s ->\n",
+				SVCFH_fmt(&argp->ffh));
+	dprintk("nfsd:   -> %s %.*s\n",
+				SVCFH_fmt(&argp->tfh),
+				argp->tlen,
+				argp->tname);
+
+	fh_copy(&resp->fh,  &argp->ffh);
+	fh_copy(&resp->tfh, &argp->tfh);
+	nfserr = nfsd_link(rqstp, &resp->tfh, argp->tname, argp->tlen,
+				  &resp->fh);
+	RETURN_STATUS(nfserr);
+}
+
+/*
+ * Read a portion of a directory.
+ */
+static int
+nfsd3_proc_readdir(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp,
+					   struct nfsd3_readdirres  *resp)
+{
+	u32 *		buffer;
+	int		nfserr, count;
+	unsigned int	want;
+
+	dprintk("nfsd: READDIR(3)  %s %d bytes at %d\n",
+				SVCFH_fmt(&argp->fh),
+				argp->count, (u32) argp->cookie);
+
+	/* Reserve buffer space for status, attributes and verifier */
+	svcbuf_reserve(&rqstp->rq_resbuf, &buffer, &count,
+				1 + NFS3_POST_OP_ATTR_WORDS + 2);
+
+	/* Make sure we've room for the NULL ptr & eof flag, and shrink to
+	 * client read size */
+	if ((count -= 2) > (want = (argp->count >> 2) - 2))
+		count = want;
+
+	/* Read directory and encode entries on the fly */
+	fh_copy(&resp->fh, &argp->fh);
+	nfserr = nfsd_readdir(rqstp, &resp->fh, (loff_t) argp->cookie, 
+					nfs3svc_encode_entry,
+					buffer, &count, argp->verf);
+	memcpy(resp->verf, argp->verf, 8);
+	resp->count = count;
+
+	RETURN_STATUS(nfserr);
+}
+
+/*
+ * Read a portion of a directory, including file handles and attrs.
+ * For now, we choose to ignore the dircount parameter.
+ */
+static int
+nfsd3_proc_readdirplus(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp,
+					       struct nfsd3_readdirres  *resp)
+{
+	u32 *	buffer;
+	int	nfserr, count, want;
+
+	dprintk("nfsd: READDIR+(3) %s %d bytes at %d\n",
+				SVCFH_fmt(&argp->fh),
+				argp->count, (u32) argp->cookie);
+
+	/* Reserve buffer space for status, attributes and verifier */
+	svcbuf_reserve(&rqstp->rq_resbuf, &buffer, &count,
+				1 + NFS3_POST_OP_ATTR_WORDS + 2);
+
+	/* Make sure we've room for the NULL ptr & eof flag, and shrink to
+	 * client read size */
+	if ((count -= 2) > (want = argp->count >> 2))
+		count = want;
+
+	/* Read directory and encode entries on the fly */
+	fh_copy(&resp->fh, &argp->fh);
+	nfserr = nfsd_readdir(rqstp, &resp->fh, (loff_t) argp->cookie, 
+					nfs3svc_encode_entry_plus,
+					buffer, &count, argp->verf);
+	memcpy(resp->verf, argp->verf, 8);
+	resp->count = count;
+
+	RETURN_STATUS(nfserr);
+}
+
+/*
+ * Get file system stats
+ */
+static int
+nfsd3_proc_fsstat(struct svc_rqst * rqstp, struct nfsd_fhandle    *argp,
+					   struct nfsd3_fsstatres *resp)
+{
+	int	nfserr;
+
+	dprintk("nfsd: FSSTAT(3)   %s\n",
+				SVCFH_fmt(&argp->fh));
+
+	nfserr = nfsd_statfs(rqstp, &argp->fh, &resp->stats);
+	fh_put(&argp->fh);
+	RETURN_STATUS(nfserr);
+}
+
+/*
+ * Get file system info
+ */
+static int
+nfsd3_proc_fsinfo(struct svc_rqst * rqstp, struct nfsd_fhandle    *argp,
+					   struct nfsd3_fsinfores *resp)
+{
+	int	nfserr;
+
+	dprintk("nfsd: FSINFO(3)   %s\n",
+				SVCFH_fmt(&argp->fh));
+
+	resp->f_rtmax  = NFSSVC_MAXBLKSIZE;
+	resp->f_rtpref = NFSSVC_MAXBLKSIZE;
+	resp->f_rtmult = PAGE_SIZE;
+	resp->f_wtmax  = NFSSVC_MAXBLKSIZE;
+	resp->f_wtpref = NFSSVC_MAXBLKSIZE;
+	resp->f_wtmult = PAGE_SIZE;
+	resp->f_dtpref = PAGE_SIZE;
+	resp->f_maxfilesize = ~(u32) 0;
+	resp->f_properties = NFS3_FSF_DEFAULT;
+
+	nfserr = fh_verify(rqstp, &argp->fh, 0, MAY_NOP);
+
+	/* Check special features of the file system. May request
+	 * different read/write sizes for file systems known to have
+	 * problems with large blocks */
+	if (nfserr == 0) {
+		struct super_block *sb = argp->fh.fh_dentry->d_inode->i_sb;
+
+		/* Note that we don't care for remote fs's here */
+		if (sb->s_magic == 0x4d44 /* MSDOS_SUPER_MAGIC */) {
+			resp->f_properties = NFS3_FSF_BILLYBOY;
+		}
+		resp->f_maxfilesize = sb->s_maxbytes;
+	}
+
+	fh_put(&argp->fh);
+	RETURN_STATUS(nfserr);
+}
+
+/*
+ * Get pathconf info for the specified file
+ */
+static int
+nfsd3_proc_pathconf(struct svc_rqst * rqstp, struct nfsd_fhandle      *argp,
+					     struct nfsd3_pathconfres *resp)
+{
+	int	nfserr;
+
+	dprintk("nfsd: PATHCONF(3) %s\n",
+				SVCFH_fmt(&argp->fh));
+
+	/* Set default pathconf */
+	resp->p_link_max = 255;		/* at least */
+	resp->p_name_max = 255;		/* at least */
+	resp->p_no_trunc = 0;
+	resp->p_chown_restricted = 1;
+	resp->p_case_insensitive = 0;
+	resp->p_case_preserving = 1;
+
+	nfserr = fh_verify(rqstp, &argp->fh, 0, MAY_NOP);
+
+	if (nfserr == 0) {
+		struct super_block *sb = argp->fh.fh_dentry->d_inode->i_sb;
+
+		/* Note that we don't care for remote fs's here */
+		switch (sb->s_magic) {
+		case EXT2_SUPER_MAGIC:
+			resp->p_link_max = EXT2_LINK_MAX;
+			resp->p_name_max = EXT2_NAME_LEN;
+			break;
+		case 0x4d44:	/* MSDOS_SUPER_MAGIC */
+			resp->p_case_insensitive = 1;
+			resp->p_case_preserving  = 0;
+			break;
+		}
+	}
+
+	fh_put(&argp->fh);
+	RETURN_STATUS(nfserr);
+}
+
+
+/*
+ * Commit a file (range) to stable storage.
+ */
+static int
+nfsd3_proc_commit(struct svc_rqst * rqstp, struct nfsd3_commitargs *argp,
+					   struct nfsd3_commitres  *resp)
+{
+	int	nfserr;
+
+	dprintk("nfsd: COMMIT(3)   %s %d@%ld\n",
+				SVCFH_fmt(&argp->fh),
+				argp->count,
+				(unsigned long) argp->offset);
+
+	if (argp->offset > NFS_OFFSET_MAX)
+		RETURN_STATUS(nfserr_inval);
+
+	fh_copy(&resp->fh, &argp->fh);
+	nfserr = nfsd_commit(rqstp, &resp->fh, argp->offset, argp->count);
+
+	RETURN_STATUS(nfserr);
+}
+
+
+/*
+ * NFSv3 Server procedures.
+ * Only the results of non-idempotent operations are cached.
+ */
+#define nfs3svc_decode_voidargs		NULL
+#define nfs3svc_release_void		NULL
+#define nfs3svc_decode_fhandleargs	nfs3svc_decode_fhandle
+#define nfs3svc_encode_attrstatres	nfs3svc_encode_attrstat
+#define nfs3svc_encode_wccstatres	nfs3svc_encode_wccstat
+#define nfsd3_mkdirargs			nfsd3_createargs
+#define nfsd3_readdirplusargs		nfsd3_readdirargs
+#define nfsd3_fhandleargs		nfsd_fhandle
+#define nfsd3_fhandleres		nfsd3_attrstat
+#define nfsd3_attrstatres		nfsd3_attrstat
+#define nfsd3_wccstatres		nfsd3_attrstat
+#define nfsd3_createres			nfsd3_diropres
+#define nfsd3_voidres			nfsd3_voidargs
+struct nfsd3_voidargs { int dummy; };
+
+#define PROC(name, argt, rest, relt, cache, respsize)	\
+ { (svc_procfunc) nfsd3_proc_##name,		\
+   (kxdrproc_t) nfs3svc_decode_##argt##args,	\
+   (kxdrproc_t) nfs3svc_encode_##rest##res,	\
+   (kxdrproc_t) nfs3svc_release_##relt,		\
+   sizeof(struct nfsd3_##argt##args),		\
+   sizeof(struct nfsd3_##rest##res),		\
+   0,						\
+   cache,					\
+   respsize,					\
+ }
+
+#define ST 1		/* status*/
+#define FH 17		/* filehandle with length */
+#define AT 21		/* attributes */
+#define pAT (1+AT)	/* post attributes - conditional */
+#define WC (7+pAT)	/* WCC attributes */
+
+struct svc_procedure		nfsd_procedures3[22] = {
+  PROC(null,	 void,		void,		void,	 RC_NOCACHE, ST),
+  PROC(getattr,	 fhandle,	attrstat,	fhandle, RC_NOCACHE, ST+AT),
+  PROC(setattr,  sattr,		wccstat,	fhandle,  RC_REPLBUFF, ST+WC),
+  PROC(lookup,	 dirop,		dirop,		fhandle2, RC_NOCACHE, ST+FH+pAT+pAT),
+  PROC(access,	 access,	access,		fhandle,  RC_NOCACHE, ST+pAT+1),
+  PROC(readlink, fhandle,	readlink,	fhandle,  RC_NOCACHE, ST+pAT+1+NFS3_MAXPATHLEN/4),
+  PROC(read,	 read,		read,		fhandle, RC_NOCACHE, ST+pAT+4+NFSSVC_MAXBLKSIZE),
+  PROC(write,	 write,		write,		fhandle,  RC_REPLBUFF, ST+WC+4),
+  PROC(create,	 create,	create,		fhandle2, RC_REPLBUFF, ST+(1+FH+pAT)+WC),
+  PROC(mkdir,	 mkdir,		create,		fhandle2, RC_REPLBUFF, ST+(1+FH+pAT)+WC),
+  PROC(symlink,	 symlink,	create,		fhandle2, RC_REPLBUFF, ST+(1+FH+pAT)+WC),
+  PROC(mknod,	 mknod,		create,		fhandle2, RC_REPLBUFF, ST+(1+FH+pAT)+WC),
+  PROC(remove,	 dirop,		wccstat,	fhandle,  RC_REPLBUFF, ST+WC),
+  PROC(rmdir,	 dirop,		wccstat,	fhandle,  RC_REPLBUFF, ST+WC),
+  PROC(rename,	 rename,	rename,		fhandle2, RC_REPLBUFF, ST+WC+WC),
+  PROC(link,	 link,		link,		fhandle2, RC_REPLBUFF, ST+pAT+WC),
+  PROC(readdir,	 readdir,	readdir,	fhandle,  RC_NOCACHE, 0),
+  PROC(readdirplus,readdirplus,	readdir,	fhandle,  RC_NOCACHE, 0),
+  PROC(fsstat,	 fhandle,	fsstat,		void,     RC_NOCACHE, ST+pAT+2*6+1),
+  PROC(fsinfo,   fhandle,	fsinfo,		void,     RC_NOCACHE, ST+pAT+12),
+  PROC(pathconf, fhandle,	pathconf,	void,     RC_NOCACHE, ST+pAT+6),
+  PROC(commit,	 commit,	commit,		fhandle,  RC_NOCACHE, ST+WC+2),
+};
diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c
new file mode 100644
index 00000000000000..2348b1993f7c4f
--- /dev/null
+++ b/fs/nfsd/nfs3xdr.c
@@ -0,0 +1,851 @@
+/*
+ * linux/fs/nfsd/nfs3xdr.c
+ *
+ * XDR support for nfsd/protocol version 3.
+ *
+ * Copyright (C) 1995, 1996, 1997 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/nfs3.h>
+
+#include <linux/sunrpc/xdr.h>
+#include <linux/sunrpc/svc.h>
+#include <linux/nfsd/nfsd.h>
+#include <linux/nfsd/xdr3.h>
+
+#define NFSDDBG_FACILITY		NFSDDBG_XDR
+
+#ifdef NFSD_OPTIMIZE_SPACE
+# define inline
+#endif
+
+
+/*
+ * Mapping of S_IF* types to NFS file types
+ */
+static u32	nfs3_ftypes[] = {
+	NF3NON,  NF3FIFO, NF3CHR, NF3BAD,
+	NF3DIR,  NF3BAD,  NF3BLK, NF3BAD,
+	NF3REG,  NF3BAD,  NF3LNK, NF3BAD,
+	NF3SOCK, NF3BAD,  NF3LNK, NF3BAD,
+};
+
+/*
+ * XDR functions for basic NFS types
+ */
+static inline u32 *
+encode_time3(u32 *p, time_t secs)
+{
+	*p++ = htonl((u32) secs); *p++ = 0;
+	return p;
+}
+
+static inline u32 *
+decode_time3(u32 *p, time_t *secp)
+{
+	*secp = ntohl(*p++);
+	return p + 1;
+}
+
+static inline u32 *
+decode_fh(u32 *p, struct svc_fh *fhp)
+{
+	unsigned int size;
+	fh_init(fhp, NFS3_FHSIZE);
+	size = ntohl(*p++);
+	if (size > NFS3_FHSIZE)
+		return NULL;
+
+	memcpy(&fhp->fh_handle.fh_base, p, size);
+	fhp->fh_handle.fh_size = size;
+	return p + XDR_QUADLEN(size);
+}
+
+static inline u32 *
+encode_fh(u32 *p, struct svc_fh *fhp)
+{
+	int size = fhp->fh_handle.fh_size;
+	*p++ = htonl(size);
+	if (size) p[XDR_QUADLEN(size)-1]=0;
+	memcpy(p, &fhp->fh_handle.fh_base, size);
+	return p + XDR_QUADLEN(size);
+}
+
+/*
+ * Decode a file name and make sure that the path contains
+ * no slashes or null bytes.
+ */
+static inline u32 *
+decode_filename(u32 *p, char **namp, int *lenp)
+{
+	char		*name;
+	int		i;
+
+	if ((p = xdr_decode_string_inplace(p, namp, lenp, NFS3_MAXNAMLEN)) != NULL) {
+		for (i = 0, name = *namp; i < *lenp; i++, name++) {
+			if (*name == '\0' || *name == '/')
+				return NULL;
+		}
+	}
+
+	return p;
+}
+
+static inline u32 *
+decode_pathname(u32 *p, char **namp, int *lenp)
+{
+	char		*name;
+	int		i;
+
+	if ((p = xdr_decode_string(p, namp, lenp, NFS3_MAXPATHLEN)) != NULL) {
+		for (i = 0, name = *namp; i < *lenp; i++, name++) {
+			if (*name == '\0')
+				return NULL;
+		}
+	}
+
+	return p;
+}
+
+static inline u32 *
+decode_sattr3(u32 *p, struct iattr *iap)
+{
+	u32	tmp;
+
+	iap->ia_valid = 0;
+
+	if (*p++) {
+		iap->ia_valid |= ATTR_MODE;
+		iap->ia_mode = ntohl(*p++);
+	}
+	if (*p++) {
+		iap->ia_valid |= ATTR_UID;
+		iap->ia_uid = ntohl(*p++);
+	}
+	if (*p++) {
+		iap->ia_valid |= ATTR_GID;
+		iap->ia_gid = ntohl(*p++);
+	}
+	if (*p++) {
+		u64	newsize;
+
+		iap->ia_valid |= ATTR_SIZE;
+		p = xdr_decode_hyper(p, &newsize);
+		if (newsize <= NFS_OFFSET_MAX)
+			iap->ia_size = newsize;
+		else
+			iap->ia_size = NFS_OFFSET_MAX;
+	}
+	if ((tmp = ntohl(*p++)) == 1) {	/* set to server time */
+		iap->ia_valid |= ATTR_ATIME;
+	} else if (tmp == 2) {		/* set to client time */
+		iap->ia_valid |= ATTR_ATIME | ATTR_ATIME_SET;
+		iap->ia_atime = ntohl(*p++), p++;
+	}
+	if ((tmp = ntohl(*p++)) == 1) {	/* set to server time */
+		iap->ia_valid |= ATTR_MTIME;
+	} else if (tmp == 2) {		/* set to client time */
+		iap->ia_valid |= ATTR_MTIME | ATTR_MTIME_SET;
+		iap->ia_mtime = ntohl(*p++), p++;
+	}
+	return p;
+}
+
+static inline u32 *
+encode_fattr3(struct svc_rqst *rqstp, u32 *p, struct svc_fh *fhp)
+{
+	struct inode	*inode = fhp->fh_dentry->d_inode;
+
+	*p++ = htonl(nfs3_ftypes[(inode->i_mode & S_IFMT) >> 12]);
+	*p++ = htonl((u32) inode->i_mode);
+	*p++ = htonl((u32) inode->i_nlink);
+	*p++ = htonl((u32) nfsd_ruid(rqstp, inode->i_uid));
+	*p++ = htonl((u32) nfsd_rgid(rqstp, inode->i_gid));
+	if (S_ISLNK(inode->i_mode) && inode->i_size > NFS3_MAXPATHLEN) {
+		p = xdr_encode_hyper(p, (u64) NFS3_MAXPATHLEN);
+	} else {
+		p = xdr_encode_hyper(p, (u64) inode->i_size);
+	}
+	if (inode->i_blksize == 0 && inode->i_blocks == 0)
+		/* Minix file system(?) i_size is (hopefully) close enough */
+		p = xdr_encode_hyper(p, (u64)(inode->i_size +511)& ~511);
+	else
+		p = xdr_encode_hyper(p, ((u64)inode->i_blocks) << 9);
+	*p++ = htonl((u32) MAJOR(inode->i_rdev));
+	*p++ = htonl((u32) MINOR(inode->i_rdev));
+	if (rqstp->rq_reffh->fh_version == 1
+	    && rqstp->rq_reffh->fh_fsid_type == 1
+	    && (fhp->fh_export->ex_flags & NFSEXP_FSID))
+		p = xdr_encode_hyper(p, (u64) fhp->fh_export->ex_fsid);
+	else
+		p = xdr_encode_hyper(p, (u64) inode->i_dev);
+	p = xdr_encode_hyper(p, (u64) inode->i_ino);
+	p = encode_time3(p, inode->i_atime);
+	p = encode_time3(p, lease_get_mtime(inode));
+	p = encode_time3(p, inode->i_ctime);
+
+	return p;
+}
+
+static inline u32 *
+encode_saved_post_attr(struct svc_rqst *rqstp, u32 *p, struct svc_fh *fhp)
+{
+	struct inode	*inode = fhp->fh_dentry->d_inode;
+
+	/* Attributes to follow */
+	*p++ = xdr_one;
+
+	*p++ = htonl(nfs3_ftypes[(fhp->fh_post_mode & S_IFMT) >> 12]);
+	*p++ = htonl((u32) fhp->fh_post_mode);
+	*p++ = htonl((u32) fhp->fh_post_nlink);
+	*p++ = htonl((u32) nfsd_ruid(rqstp, fhp->fh_post_uid));
+	*p++ = htonl((u32) nfsd_rgid(rqstp, fhp->fh_post_gid));
+	if (S_ISLNK(fhp->fh_post_mode) && fhp->fh_post_size > NFS3_MAXPATHLEN) {
+		p = xdr_encode_hyper(p, (u64) NFS3_MAXPATHLEN);
+	} else {
+		p = xdr_encode_hyper(p, (u64) fhp->fh_post_size);
+	}
+	p = xdr_encode_hyper(p, ((u64)fhp->fh_post_blocks) << 9);
+	*p++ = htonl((u32) MAJOR(fhp->fh_post_rdev));
+	*p++ = htonl((u32) MINOR(fhp->fh_post_rdev));
+	if (rqstp->rq_reffh->fh_version == 1
+	    && rqstp->rq_reffh->fh_fsid_type == 1
+	    && (fhp->fh_export->ex_flags & NFSEXP_FSID))
+		p = xdr_encode_hyper(p, (u64) fhp->fh_export->ex_fsid);
+	else
+		p = xdr_encode_hyper(p, (u64) inode->i_dev);
+	p = xdr_encode_hyper(p, (u64) inode->i_ino);
+	p = encode_time3(p, fhp->fh_post_atime);
+	p = encode_time3(p, fhp->fh_post_mtime);
+	p = encode_time3(p, fhp->fh_post_ctime);
+
+	return p;
+}
+
+/*
+ * Encode post-operation attributes.
+ * The inode may be NULL if the call failed because of a stale file
+ * handle. In this case, no attributes are returned.
+ */
+static u32 *
+encode_post_op_attr(struct svc_rqst *rqstp, u32 *p, struct svc_fh *fhp)
+{
+	struct dentry *dentry = fhp->fh_dentry;
+	if (dentry && dentry->d_inode != NULL) {
+		*p++ = xdr_one;		/* attributes follow */
+		return encode_fattr3(rqstp, p, fhp);
+	}
+	*p++ = xdr_zero;
+	return p;
+}
+
+/*
+ * Enocde weak cache consistency data
+ */
+static u32 *
+encode_wcc_data(struct svc_rqst *rqstp, u32 *p, struct svc_fh *fhp)
+{
+	struct dentry	*dentry = fhp->fh_dentry;
+
+	if (dentry && dentry->d_inode && fhp->fh_post_saved) {
+		if (fhp->fh_pre_saved) {
+			*p++ = xdr_one;
+			p = xdr_encode_hyper(p, (u64) fhp->fh_pre_size);
+			p = encode_time3(p, fhp->fh_pre_mtime);
+			p = encode_time3(p, fhp->fh_pre_ctime);
+		} else {
+			*p++ = xdr_zero;
+		}
+		return encode_saved_post_attr(rqstp, p, fhp);
+	}
+	/* no pre- or post-attrs */
+	*p++ = xdr_zero;
+	return encode_post_op_attr(rqstp, p, fhp);
+}
+
+/*
+ * Check buffer bounds after decoding arguments
+ */
+static inline int
+xdr_argsize_check(struct svc_rqst *rqstp, u32 *p)
+{
+	struct svc_buf	*buf = &rqstp->rq_argbuf;
+
+	return p >= buf->base && p <= buf->base + buf->buflen ;
+}
+
+static inline int
+xdr_ressize_check(struct svc_rqst *rqstp, u32 *p)
+{
+	struct svc_buf	*buf = &rqstp->rq_resbuf;
+
+	buf->len = p - buf->base;
+	dprintk("nfsd: ressize_check p %p base %p len %d\n",
+			p, buf->base, buf->buflen);
+	return (buf->len <= buf->buflen);
+}
+
+/*
+ * XDR decode functions
+ */
+int
+nfs3svc_decode_fhandle(struct svc_rqst *rqstp, u32 *p, struct svc_fh *fhp)
+{
+	if (!(p = decode_fh(p, fhp)))
+		return 0;
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nfs3svc_decode_sattrargs(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_sattrargs *args)
+{
+	if (!(p = decode_fh(p, &args->fh))
+	 || !(p = decode_sattr3(p, &args->attrs)))
+		return 0;
+
+	if ((args->check_guard = ntohl(*p++)) != 0)
+		p = decode_time3(p, &args->guardtime);
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nfs3svc_decode_diropargs(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_diropargs *args)
+{
+	if (!(p = decode_fh(p, &args->fh))
+	 || !(p = decode_filename(p, &args->name, &args->len)))
+		return 0;
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nfs3svc_decode_accessargs(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_accessargs *args)
+{
+	if (!(p = decode_fh(p, &args->fh)))
+		return 0;
+	args->access = ntohl(*p++);
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nfs3svc_decode_readargs(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_readargs *args)
+{
+	if (!(p = decode_fh(p, &args->fh))
+	 || !(p = xdr_decode_hyper(p, &args->offset)))
+		return 0;
+
+	args->count = ntohl(*p++);
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nfs3svc_decode_writeargs(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_writeargs *args)
+{
+	if (!(p = decode_fh(p, &args->fh))
+	 || !(p = xdr_decode_hyper(p, &args->offset)))
+		return 0;
+
+	args->count = ntohl(*p++);
+	args->stable = ntohl(*p++);
+	args->len = ntohl(*p++);
+	args->data = (char *) p;
+	p += XDR_QUADLEN(args->len);
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nfs3svc_decode_createargs(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_createargs *args)
+{
+	if (!(p = decode_fh(p, &args->fh))
+	 || !(p = decode_filename(p, &args->name, &args->len)))
+		return 0;
+
+	switch (args->createmode = ntohl(*p++)) {
+	case NFS3_CREATE_UNCHECKED:
+	case NFS3_CREATE_GUARDED:
+		if (!(p = decode_sattr3(p, &args->attrs)))
+			return 0;
+		break;
+	case NFS3_CREATE_EXCLUSIVE:
+		args->verf = p;
+		p += 2;
+		break;
+	default:
+		return 0;
+	}
+
+	return xdr_argsize_check(rqstp, p);
+}
+int
+nfs3svc_decode_mkdirargs(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_createargs *args)
+{
+	if (!(p = decode_fh(p, &args->fh))
+	 || !(p = decode_filename(p, &args->name, &args->len))
+	 || !(p = decode_sattr3(p, &args->attrs)))
+		return 0;
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nfs3svc_decode_symlinkargs(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_symlinkargs *args)
+{
+	if (!(p = decode_fh(p, &args->ffh))
+	 || !(p = decode_filename(p, &args->fname, &args->flen))
+	 || !(p = decode_sattr3(p, &args->attrs))
+	 || !(p = decode_pathname(p, &args->tname, &args->tlen)))
+		return 0;
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nfs3svc_decode_mknodargs(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_mknodargs *args)
+{
+	if (!(p = decode_fh(p, &args->fh))
+	 || !(p = decode_filename(p, &args->name, &args->len)))
+		return 0;
+
+	args->ftype = ntohl(*p++);
+
+	if (args->ftype == NF3BLK  || args->ftype == NF3CHR
+	 || args->ftype == NF3SOCK || args->ftype == NF3FIFO) {
+		if (!(p = decode_sattr3(p, &args->attrs)))
+			return 0;
+	}
+
+	if (args->ftype == NF3BLK || args->ftype == NF3CHR) {
+		args->major = ntohl(*p++);
+		args->minor = ntohl(*p++);
+	}
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nfs3svc_decode_renameargs(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_renameargs *args)
+{
+	if (!(p = decode_fh(p, &args->ffh))
+	 || !(p = decode_filename(p, &args->fname, &args->flen))
+	 || !(p = decode_fh(p, &args->tfh))
+	 || !(p = decode_filename(p, &args->tname, &args->tlen)))
+		return 0;
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nfs3svc_decode_linkargs(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_linkargs *args)
+{
+	if (!(p = decode_fh(p, &args->ffh))
+	 || !(p = decode_fh(p, &args->tfh))
+	 || !(p = decode_filename(p, &args->tname, &args->tlen)))
+		return 0;
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nfs3svc_decode_readdirargs(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_readdirargs *args)
+{
+	if (!(p = decode_fh(p, &args->fh)))
+		return 0;
+	p = xdr_decode_hyper(p, &args->cookie);
+	args->verf   = p; p += 2;
+	args->dircount = ~0;
+	args->count  = ntohl(*p++);
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nfs3svc_decode_readdirplusargs(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_readdirargs *args)
+{
+	if (!(p = decode_fh(p, &args->fh)))
+		return 0;
+	p = xdr_decode_hyper(p, &args->cookie);
+	args->verf     = p; p += 2;
+	args->dircount = ntohl(*p++);
+	args->count    = ntohl(*p++);
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nfs3svc_decode_commitargs(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_commitargs *args)
+{
+	if (!(p = decode_fh(p, &args->fh)))
+		return 0;
+	p = xdr_decode_hyper(p, &args->offset);
+	args->count = ntohl(*p++);
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+/*
+ * XDR encode functions
+ */
+/*
+ * There must be an encoding function for void results so svc_process
+ * will work properly.
+ */
+int
+nfs3svc_encode_voidres(struct svc_rqst *rqstp, u32 *p, void *dummy)
+{
+	return xdr_ressize_check(rqstp, p);
+}
+
+/* GETATTR */
+int
+nfs3svc_encode_attrstat(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_attrstat *resp)
+{
+	if (resp->status == 0)
+		p = encode_fattr3(rqstp, p, &resp->fh);
+	return xdr_ressize_check(rqstp, p);
+}
+
+/* SETATTR, REMOVE, RMDIR */
+int
+nfs3svc_encode_wccstat(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_attrstat *resp)
+{
+	p = encode_wcc_data(rqstp, p, &resp->fh);
+	return xdr_ressize_check(rqstp, p);
+}
+
+/* LOOKUP */
+int
+nfs3svc_encode_diropres(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_diropres *resp)
+{
+	if (resp->status == 0) {
+		p = encode_fh(p, &resp->fh);
+		p = encode_post_op_attr(rqstp, p, &resp->fh);
+	}
+	p = encode_post_op_attr(rqstp, p, &resp->dirfh);
+	return xdr_ressize_check(rqstp, p);
+}
+
+/* ACCESS */
+int
+nfs3svc_encode_accessres(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_accessres *resp)
+{
+	p = encode_post_op_attr(rqstp, p, &resp->fh);
+	if (resp->status == 0)
+		*p++ = htonl(resp->access);
+	return xdr_ressize_check(rqstp, p);
+}
+
+/* READLINK */
+int
+nfs3svc_encode_readlinkres(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_readlinkres *resp)
+{
+	p = encode_post_op_attr(rqstp, p, &resp->fh);
+	if (resp->status == 0) {
+		*p++ = htonl(resp->len);
+		p += XDR_QUADLEN(resp->len);
+	}
+	return xdr_ressize_check(rqstp, p);
+}
+
+/* READ */
+int
+nfs3svc_encode_readres(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_readres *resp)
+{
+	p = encode_post_op_attr(rqstp, p, &resp->fh);
+	if (resp->status == 0) {
+		*p++ = htonl(resp->count);
+		*p++ = htonl(resp->eof);
+		*p++ = htonl(resp->count);	/* xdr opaque count */
+		p += XDR_QUADLEN(resp->count);
+	}
+	return xdr_ressize_check(rqstp, p);
+}
+
+/* WRITE */
+int
+nfs3svc_encode_writeres(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_writeres *resp)
+{
+	p = encode_wcc_data(rqstp, p, &resp->fh);
+	if (resp->status == 0) {
+		*p++ = htonl(resp->count);
+		*p++ = htonl(resp->committed);
+		*p++ = htonl(nfssvc_boot.tv_sec);
+		*p++ = htonl(nfssvc_boot.tv_usec);
+	}
+	return xdr_ressize_check(rqstp, p);
+}
+
+/* CREATE, MKDIR, SYMLINK, MKNOD */
+int
+nfs3svc_encode_createres(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_diropres *resp)
+{
+	if (resp->status == 0) {
+		*p++ = xdr_one;
+		p = encode_fh(p, &resp->fh);
+		p = encode_post_op_attr(rqstp, p, &resp->fh);
+	}
+	p = encode_wcc_data(rqstp, p, &resp->dirfh);
+	return xdr_ressize_check(rqstp, p);
+}
+
+/* RENAME */
+int
+nfs3svc_encode_renameres(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_renameres *resp)
+{
+	p = encode_wcc_data(rqstp, p, &resp->ffh);
+	p = encode_wcc_data(rqstp, p, &resp->tfh);
+	return xdr_ressize_check(rqstp, p);
+}
+
+/* LINK */
+int
+nfs3svc_encode_linkres(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_linkres *resp)
+{
+	p = encode_post_op_attr(rqstp, p, &resp->fh);
+	p = encode_wcc_data(rqstp, p, &resp->tfh);
+	return xdr_ressize_check(rqstp, p);
+}
+
+/* READDIR */
+int
+nfs3svc_encode_readdirres(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_readdirres *resp)
+{
+	p = encode_post_op_attr(rqstp, p, &resp->fh);
+	if (resp->status == 0) {
+		/* stupid readdir cookie */
+		memcpy(p, resp->verf, 8); p += 2;
+		p += XDR_QUADLEN(resp->count);
+	}
+
+	return xdr_ressize_check(rqstp, p);
+}
+
+/*
+ * Encode a directory entry. This one works for both normal readdir
+ * and readdirplus.
+ * The normal readdir reply requires 2 (fileid) + 1 (stringlen)
+ * + string + 2 (cookie) + 1 (next) words, i.e. 6 + strlen.
+ * 
+ * The readdirplus baggage is 1+21 words for post_op_attr, plus the
+ * file handle.
+ */
+
+#define NFS3_ENTRY_BAGGAGE	(2 + 1 + 2 + 1)
+#define NFS3_ENTRYPLUS_BAGGAGE	(1 + 21 + 1 + (NFS3_FHSIZE >> 2))
+static int
+encode_entry(struct readdir_cd *cd, const char *name,
+	     int namlen, off_t offset, ino_t ino, unsigned int d_type, int plus)
+{
+	u32		*p = cd->buffer;
+	int		buflen, slen, elen;
+
+	if (cd->offset)
+		xdr_encode_hyper(cd->offset, (u64) offset);
+
+	/* nfsd_readdir calls us with name == 0 when it wants us to
+	 * set the last offset entry. */
+	if (name == 0)
+		return 0;
+
+	/*
+	dprintk("encode_entry(%.*s @%ld%s)\n",
+		namlen, name, (long) offset, plus? " plus" : "");
+	 */
+
+	/* truncate filename if too long */
+	if (namlen > NFS3_MAXNAMLEN)
+		namlen = NFS3_MAXNAMLEN;
+
+	slen = XDR_QUADLEN(namlen);
+	elen = slen + NFS3_ENTRY_BAGGAGE
+		+ (plus? NFS3_ENTRYPLUS_BAGGAGE : 0);
+	if ((buflen = cd->buflen - elen) < 0) {
+		cd->eob = 1;
+		return -EINVAL;
+	}
+	*p++ = xdr_one;				 /* mark entry present */
+	p    = xdr_encode_hyper(p, ino);	 /* file id */
+	p    = xdr_encode_array(p, name, namlen);/* name length & name */
+
+	cd->offset = p;			/* remember pointer */
+	p = xdr_encode_hyper(p, NFS_OFFSET_MAX);	/* offset of next entry */
+
+	/* throw in readdirplus baggage */
+	if (plus) {
+		struct svc_fh	fh;
+		struct svc_export	*exp;
+		struct dentry		*dparent, *dchild;
+
+		dparent = cd->dirfh->fh_dentry;
+		exp  = cd->dirfh->fh_export;
+
+		fh_init(&fh, NFS3_FHSIZE);
+		if (isdotent(name, namlen)) {
+			dchild = dparent;
+			if (namlen == 2)
+				dchild = dchild->d_parent;
+			dchild = dget(dchild);
+		} else
+			dchild = lookup_one_len(name, dparent,namlen);
+		if (IS_ERR(dchild))
+			goto noexec;
+		if (fh_compose(&fh, exp, dchild, cd->dirfh) != 0 || !dchild->d_inode)
+			goto noexec;
+		p = encode_post_op_attr(cd->rqstp, p, &fh);
+		*p++ = xdr_one; /* yes, a file handle follows */
+		p = encode_fh(p, &fh);
+		fh_put(&fh);
+	}
+
+out:
+	cd->buflen = buflen;
+	cd->buffer = p;
+	return 0;
+
+noexec:
+	*p++ = 0;
+	*p++ = 0;
+	goto out;
+}
+
+int
+nfs3svc_encode_entry(struct readdir_cd *cd, const char *name,
+		     int namlen, loff_t offset, ino_t ino, unsigned int d_type)
+{
+	return encode_entry(cd, name, namlen, offset, ino, d_type, 0);
+}
+
+int
+nfs3svc_encode_entry_plus(struct readdir_cd *cd, const char *name,
+			  int namlen, loff_t offset, ino_t ino, unsigned int d_type)
+{
+	return encode_entry(cd, name, namlen, offset, ino, d_type, 1);
+}
+
+/* FSSTAT */
+int
+nfs3svc_encode_fsstatres(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_fsstatres *resp)
+{
+	struct statfs	*s = &resp->stats;
+	u64		bs = s->f_bsize;
+
+	*p++ = xdr_zero;	/* no post_op_attr */
+
+	if (resp->status == 0) {
+		p = xdr_encode_hyper(p, bs * s->f_blocks);	/* total bytes */
+		p = xdr_encode_hyper(p, bs * s->f_bfree);	/* free bytes */
+		p = xdr_encode_hyper(p, bs * s->f_bavail);	/* user available bytes */
+		p = xdr_encode_hyper(p, s->f_files);	/* total inodes */
+		p = xdr_encode_hyper(p, s->f_ffree);	/* free inodes */
+		p = xdr_encode_hyper(p, s->f_ffree);	/* user available inodes */
+		*p++ = htonl(resp->invarsec);	/* mean unchanged time */
+	}
+	return xdr_ressize_check(rqstp, p);
+}
+
+/* FSINFO */
+int
+nfs3svc_encode_fsinfores(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_fsinfores *resp)
+{
+	*p++ = xdr_zero;	/* no post_op_attr */
+
+	if (resp->status == 0) {
+		*p++ = htonl(resp->f_rtmax);
+		*p++ = htonl(resp->f_rtpref);
+		*p++ = htonl(resp->f_rtmult);
+		*p++ = htonl(resp->f_wtmax);
+		*p++ = htonl(resp->f_wtpref);
+		*p++ = htonl(resp->f_wtmult);
+		*p++ = htonl(resp->f_dtpref);
+		p = xdr_encode_hyper(p, resp->f_maxfilesize);
+		*p++ = xdr_one;
+		*p++ = xdr_zero;
+		*p++ = htonl(resp->f_properties);
+	}
+
+	return xdr_ressize_check(rqstp, p);
+}
+
+/* PATHCONF */
+int
+nfs3svc_encode_pathconfres(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_pathconfres *resp)
+{
+	*p++ = xdr_zero;	/* no post_op_attr */
+
+	if (resp->status == 0) {
+		*p++ = htonl(resp->p_link_max);
+		*p++ = htonl(resp->p_name_max);
+		*p++ = htonl(resp->p_no_trunc);
+		*p++ = htonl(resp->p_chown_restricted);
+		*p++ = htonl(resp->p_case_insensitive);
+		*p++ = htonl(resp->p_case_preserving);
+	}
+
+	return xdr_ressize_check(rqstp, p);
+}
+
+/* COMMIT */
+int
+nfs3svc_encode_commitres(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_commitres *resp)
+{
+	p = encode_wcc_data(rqstp, p, &resp->fh);
+	/* Write verifier */
+	if (resp->status == 0) {
+		*p++ = htonl(nfssvc_boot.tv_sec);
+		*p++ = htonl(nfssvc_boot.tv_usec);
+	}
+	return xdr_ressize_check(rqstp, p);
+}
+
+/*
+ * XDR release functions
+ */
+int
+nfs3svc_release_fhandle(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_attrstat *resp)
+{
+	fh_put(&resp->fh);
+	return 1;
+}
+
+int
+nfs3svc_release_fhandle2(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd3_fhandle_pair *resp)
+{
+	fh_put(&resp->fh1);
+	fh_put(&resp->fh2);
+	return 1;
+}
diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c
new file mode 100644
index 00000000000000..c556efb9755ea4
--- /dev/null
+++ b/fs/nfsd/nfscache.c
@@ -0,0 +1,353 @@
+/*
+ * linux/fs/nfsd/nfscache.c
+ *
+ * Request reply cache. This is currently a global cache, but this may
+ * change in the future and be a per-client cache.
+ *
+ * This code is heavily inspired by the 44BSD implementation, although
+ * it does things a bit differently.
+ *
+ * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+
+#include <linux/sunrpc/svc.h>
+#include <linux/nfsd/nfsd.h>
+#include <linux/nfsd/cache.h>
+
+/* Size of reply cache. Common values are:
+ * 4.3BSD:	128
+ * 4.4BSD:	256
+ * Solaris2:	1024
+ * DEC Unix:	512-4096
+ */
+#define CACHESIZE		1024
+#define HASHSIZE		64
+#define REQHASH(xid)		((((xid) >> 24) ^ (xid)) & (HASHSIZE-1))
+
+struct nfscache_head {
+	struct svc_cacherep *	next;
+	struct svc_cacherep *	prev;
+};
+
+static struct nfscache_head *	hash_list;
+static struct svc_cacherep *	lru_head;
+static struct svc_cacherep *	lru_tail;
+static struct svc_cacherep *	nfscache;
+static int			cache_disabled = 1;
+
+static int	nfsd_cache_append(struct svc_rqst *rqstp, struct svc_buf *data);
+
+void
+nfsd_cache_init(void)
+{
+	struct svc_cacherep	*rp;
+	struct nfscache_head	*rh;
+	size_t			i;
+	unsigned long		order;
+
+
+	i = CACHESIZE * sizeof (struct svc_cacherep);
+	for (order = 0; (PAGE_SIZE << order) < i; order++)
+		;
+	nfscache = (struct svc_cacherep *)
+		__get_free_pages(GFP_KERNEL, order);
+	if (!nfscache) {
+		printk (KERN_ERR "nfsd: cannot allocate %Zd bytes for reply cache\n", i);
+		return;
+	}
+	memset(nfscache, 0, i);
+
+	i = HASHSIZE * sizeof (struct nfscache_head);
+	hash_list = kmalloc (i, GFP_KERNEL);
+	if (!hash_list) {
+		free_pages ((unsigned long)nfscache, order);
+		nfscache = NULL;
+		printk (KERN_ERR "nfsd: cannot allocate %Zd bytes for hash list\n", i);
+		return;
+	}
+
+	for (i = 0, rh = hash_list; i < HASHSIZE; i++, rh++)
+		rh->next = rh->prev = (struct svc_cacherep *) rh;
+
+	for (i = 0, rp = nfscache; i < CACHESIZE; i++, rp++) {
+		rp->c_state = RC_UNUSED;
+		rp->c_type = RC_NOCACHE;
+		rp->c_hash_next =
+		rp->c_hash_prev = rp;
+		rp->c_lru_next = rp + 1;
+		rp->c_lru_prev = rp - 1;
+	}
+	lru_head = nfscache;
+	lru_tail = nfscache + CACHESIZE - 1;
+	lru_head->c_lru_prev = NULL;
+	lru_tail->c_lru_next = NULL;
+
+	cache_disabled = 0;
+}
+
+void
+nfsd_cache_shutdown(void)
+{
+	struct svc_cacherep	*rp;
+	size_t			i;
+	unsigned long		order;
+
+	for (rp = lru_head; rp; rp = rp->c_lru_next) {
+		if (rp->c_state == RC_DONE && rp->c_type == RC_REPLBUFF)
+			kfree(rp->c_replbuf.buf);
+	}
+
+	cache_disabled = 1;
+
+	i = CACHESIZE * sizeof (struct svc_cacherep);
+	for (order = 0; (PAGE_SIZE << order) < i; order++)
+		;
+	free_pages ((unsigned long)nfscache, order);
+	nfscache = NULL;
+	kfree (hash_list);
+	hash_list = NULL;
+}
+
+/*
+ * Move cache entry to front of LRU list
+ */
+static void
+lru_put_front(struct svc_cacherep *rp)
+{
+	struct svc_cacherep	*prev = rp->c_lru_prev,
+				*next = rp->c_lru_next;
+
+	if (prev)
+		prev->c_lru_next = next;
+	else
+		lru_head = next;
+	if (next)
+		next->c_lru_prev = prev;
+	else
+		lru_tail = prev;
+
+	rp->c_lru_next = lru_head;
+	rp->c_lru_prev = NULL;
+	if (lru_head)
+		lru_head->c_lru_prev = rp;
+	lru_head = rp;
+}
+
+/*
+ * Move a cache entry from one hash list to another
+ */
+static void
+hash_refile(struct svc_cacherep *rp)
+{
+	struct svc_cacherep	*prev = rp->c_hash_prev,
+				*next = rp->c_hash_next;
+	struct nfscache_head	*head = hash_list + REQHASH(rp->c_xid);
+
+	prev->c_hash_next = next;
+	next->c_hash_prev = prev;
+
+	rp->c_hash_next = head->next;
+	rp->c_hash_prev = (struct svc_cacherep *) head;
+	head->next->c_hash_prev = rp;
+	head->next = rp;
+}
+
+/*
+ * Try to find an entry matching the current call in the cache. When none
+ * is found, we grab the oldest unlocked entry off the LRU list.
+ * Note that no operation within the loop may sleep.
+ */
+int
+nfsd_cache_lookup(struct svc_rqst *rqstp, int type)
+{
+	struct svc_cacherep	*rh, *rp;
+	u32			xid = rqstp->rq_xid,
+				proto =  rqstp->rq_prot,
+				vers = rqstp->rq_vers,
+				proc = rqstp->rq_proc;
+	unsigned long		age;
+
+	rqstp->rq_cacherep = NULL;
+	if (cache_disabled || type == RC_NOCACHE) {
+		nfsdstats.rcnocache++;
+		return RC_DOIT;
+	}
+
+	rp = rh = (struct svc_cacherep *) &hash_list[REQHASH(xid)];
+	while ((rp = rp->c_hash_next) != rh) {
+		if (rp->c_state != RC_UNUSED &&
+		    xid == rp->c_xid && proc == rp->c_proc &&
+		    proto == rp->c_prot && vers == rp->c_vers &&
+		    time_before(jiffies, rp->c_timestamp + 120*HZ) &&
+		    memcmp((char*)&rqstp->rq_addr, (char*)&rp->c_addr, sizeof(rp->c_addr))==0) {
+			nfsdstats.rchits++;
+			goto found_entry;
+		}
+	}
+	nfsdstats.rcmisses++;
+
+	/* This loop shouldn't take more than a few iterations normally */
+	{
+	int	safe = 0;
+	for (rp = lru_tail; rp; rp = rp->c_lru_prev) {
+		if (rp->c_state != RC_INPROG)
+			break;
+		if (safe++ > CACHESIZE) {
+			printk("nfsd: loop in repcache LRU list\n");
+			cache_disabled = 1;
+			return RC_DOIT;
+		}
+	}
+	}
+
+	/* This should not happen */
+	if (rp == NULL) {
+		static int	complaints;
+
+		printk(KERN_WARNING "nfsd: all repcache entries locked!\n");
+		if (++complaints > 5) {
+			printk(KERN_WARNING "nfsd: disabling repcache.\n");
+			cache_disabled = 1;
+		}
+		return RC_DOIT;
+	}
+
+	rqstp->rq_cacherep = rp;
+	rp->c_state = RC_INPROG;
+	rp->c_xid = xid;
+	rp->c_proc = proc;
+	rp->c_addr = rqstp->rq_addr;
+	rp->c_prot = proto;
+	rp->c_vers = vers;
+	rp->c_timestamp = jiffies;
+
+	hash_refile(rp);
+
+	/* release any buffer */
+	if (rp->c_type == RC_REPLBUFF) {
+		kfree(rp->c_replbuf.buf);
+		rp->c_replbuf.buf = NULL;
+	}
+	rp->c_type = RC_NOCACHE;
+
+	return RC_DOIT;
+
+found_entry:
+	/* We found a matching entry which is either in progress or done. */
+	age = jiffies - rp->c_timestamp;
+	rp->c_timestamp = jiffies;
+	lru_put_front(rp);
+
+	/* Request being processed or excessive rexmits */
+	if (rp->c_state == RC_INPROG || age < RC_DELAY)
+		return RC_DROPIT;
+
+	/* From the hall of fame of impractical attacks:
+	 * Is this a user who tries to snoop on the cache? */
+	if (!rqstp->rq_secure && rp->c_secure)
+		return RC_DOIT;
+
+	/* Compose RPC reply header */
+	switch (rp->c_type) {
+	case RC_NOCACHE:
+		return RC_DOIT;
+	case RC_REPLSTAT:
+		svc_putlong(&rqstp->rq_resbuf, rp->c_replstat);
+		break;
+	case RC_REPLBUFF:
+		if (!nfsd_cache_append(rqstp, &rp->c_replbuf))
+			return RC_DOIT;	/* should not happen */
+		break;
+	default:
+		printk(KERN_WARNING "nfsd: bad repcache type %d\n", rp->c_type);
+		rp->c_state = RC_UNUSED;
+		return RC_DOIT;
+	}
+
+	return RC_REPLY;
+}
+
+/*
+ * Update a cache entry. This is called from nfsd_dispatch when
+ * the procedure has been executed and the complete reply is in
+ * rqstp->rq_res.
+ *
+ * We're copying around data here rather than swapping buffers because
+ * the toplevel loop requires max-sized buffers, which would be a waste
+ * of memory for a cache with a max reply size of 100 bytes (diropokres).
+ *
+ * If we should start to use different types of cache entries tailored
+ * specifically for attrstat and fh's, we may save even more space.
+ *
+ * Also note that a cachetype of RC_NOCACHE can legally be passed when
+ * nfsd failed to encode a reply that otherwise would have been cached.
+ * In this case, nfsd_cache_update is called with statp == NULL.
+ */
+void
+nfsd_cache_update(struct svc_rqst *rqstp, int cachetype, u32 *statp)
+{
+	struct svc_cacherep *rp;
+	struct svc_buf	*resp = &rqstp->rq_resbuf, *cachp;
+	int		len;
+
+	if (!(rp = rqstp->rq_cacherep) || cache_disabled)
+		return;
+
+	len = resp->len - (statp - resp->base);
+	
+	/* Don't cache excessive amounts of data and XDR failures */
+	if (!statp || len > (256 >> 2)) {
+		rp->c_state = RC_UNUSED;
+		return;
+	}
+
+	switch (cachetype) {
+	case RC_REPLSTAT:
+		if (len != 1)
+			printk("nfsd: RC_REPLSTAT/reply len %d!\n",len);
+		rp->c_replstat = *statp;
+		break;
+	case RC_REPLBUFF:
+		cachp = &rp->c_replbuf;
+		cachp->buf = (u32 *) kmalloc(len << 2, GFP_KERNEL);
+		if (!cachp->buf) {
+			rp->c_state = RC_UNUSED;
+			return;
+		}
+		cachp->len = len;
+		memcpy(cachp->buf, statp, len << 2);
+		break;
+	}
+
+	lru_put_front(rp);
+	rp->c_secure = rqstp->rq_secure;
+	rp->c_type = cachetype;
+	rp->c_state = RC_DONE;
+	rp->c_timestamp = jiffies;
+
+	return;
+}
+
+/*
+ * Copy cached reply to current reply buffer. Should always fit.
+ */
+static int
+nfsd_cache_append(struct svc_rqst *rqstp, struct svc_buf *data)
+{
+	struct svc_buf	*resp = &rqstp->rq_resbuf;
+
+	if (resp->len + data->len > resp->buflen) {
+		printk(KERN_WARNING "nfsd: cached reply too large (%d).\n",
+				data->len);
+		return 0;
+	}
+	memcpy(resp->buf, data->buf, data->len << 2);
+	resp->buf += data->len;
+	resp->len += data->len;
+	return 1;
+}
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
new file mode 100644
index 00000000000000..59d65f500e8091
--- /dev/null
+++ b/fs/nfsd/nfsctl.c
@@ -0,0 +1,349 @@
+/*
+ * linux/fs/nfsd/nfsctl.c
+ *
+ * Syscall interface to knfsd.
+ *
+ * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/version.h>
+
+#include <linux/linkage.h>
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/fcntl.h>
+#include <linux/net.h>
+#include <linux/in.h>
+#include <linux/unistd.h>
+#include <linux/slab.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+
+#include <linux/nfs.h>
+#include <linux/sunrpc/svc.h>
+#include <linux/nfsd/nfsd.h>
+#include <linux/nfsd/cache.h>
+#include <linux/nfsd/xdr.h>
+#include <linux/nfsd/syscall.h>
+
+#include <asm/uaccess.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/init.h>
+
+static int	nfsctl_svc(struct nfsctl_svc *data);
+static int	nfsctl_addclient(struct nfsctl_client *data);
+static int	nfsctl_delclient(struct nfsctl_client *data);
+static int	nfsctl_export(struct nfsctl_export *data);
+static int	nfsctl_unexport(struct nfsctl_export *data);
+static int	nfsctl_getfh(struct nfsctl_fhparm *, __u8 *);
+static int	nfsctl_getfd(struct nfsctl_fdparm *, __u8 *);
+static int	nfsctl_getfs(struct nfsctl_fsparm *, struct knfsd_fh *);
+#ifdef notyet
+static int	nfsctl_ugidupdate(struct nfsctl_ugidmap *data);
+#endif
+
+extern struct seq_operations nfs_exports_op;
+static int exports_open(struct inode *inode, struct file *file)
+{
+	return seq_open(file, &nfs_exports_op);
+}
+static struct file_operations exports_operations = {
+	open:		exports_open,
+	read:		seq_read,
+	llseek:		seq_lseek,
+	release:	seq_release,
+};
+
+void proc_export_init(void)
+{
+	struct proc_dir_entry *entry;
+	if (!proc_mkdir("fs/nfs", 0))
+		return;
+	entry = create_proc_entry("fs/nfs/exports", 0, NULL);
+	if (entry)
+		entry->proc_fops =  &exports_operations;
+}
+
+static inline int
+nfsctl_svc(struct nfsctl_svc *data)
+{
+	return nfsd_svc(data->svc_port, data->svc_nthreads);
+}
+
+static inline int
+nfsctl_addclient(struct nfsctl_client *data)
+{
+	return exp_addclient(data);
+}
+
+static inline int
+nfsctl_delclient(struct nfsctl_client *data)
+{
+	return exp_delclient(data);
+}
+
+static inline int
+nfsctl_export(struct nfsctl_export *data)
+{
+	return exp_export(data);
+}
+
+static inline int
+nfsctl_unexport(struct nfsctl_export *data)
+{
+	return exp_unexport(data);
+}
+
+#ifdef notyet
+static inline int
+nfsctl_ugidupdate(nfs_ugidmap *data)
+{
+	return -EINVAL;
+}
+#endif
+
+static inline int
+nfsctl_getfs(struct nfsctl_fsparm *data, struct knfsd_fh *res)
+{
+	struct sockaddr_in	*sin;
+	struct svc_client	*clp;
+	int			err = 0;
+
+	if (data->gd_addr.sa_family != AF_INET)
+		return -EPROTONOSUPPORT;
+	sin = (struct sockaddr_in *)&data->gd_addr;
+	if (data->gd_maxlen > NFS3_FHSIZE)
+		data->gd_maxlen = NFS3_FHSIZE;
+	exp_readlock();
+	if (!(clp = exp_getclient(sin)))
+		err = -EPERM;
+	else
+		err = exp_rootfh(clp, 0, 0, data->gd_path, res, data->gd_maxlen);
+	exp_unlock();
+	return err;
+}
+
+static inline int
+nfsctl_getfd(struct nfsctl_fdparm *data, __u8 *res)
+{
+	struct sockaddr_in	*sin;
+	struct svc_client	*clp;
+	int			err = 0;
+	struct	knfsd_fh	fh;
+
+	if (data->gd_addr.sa_family != AF_INET)
+		return -EPROTONOSUPPORT;
+	if (data->gd_version < 2 || data->gd_version > NFSSVC_MAXVERS)
+		return -EINVAL;
+	sin = (struct sockaddr_in *)&data->gd_addr;
+
+	exp_readlock();
+	if (!(clp = exp_getclient(sin)))
+		err = -EPERM;
+	else
+		err = exp_rootfh(clp, 0, 0, data->gd_path, &fh, NFS_FHSIZE);
+	exp_unlock();
+
+	if (err == 0) {
+		if (fh.fh_size > NFS_FHSIZE)
+			err = -EINVAL;
+		else {
+			memset(res,0, NFS_FHSIZE);
+			memcpy(res, &fh.fh_base, fh.fh_size);
+		}
+	}
+
+	return err;
+}
+
+static inline int
+nfsctl_getfh(struct nfsctl_fhparm *data, __u8 *res)
+{
+	struct sockaddr_in	*sin;
+	struct svc_client	*clp;
+	int			err = 0;
+	struct knfsd_fh		fh;
+
+	if (data->gf_addr.sa_family != AF_INET)
+		return -EPROTONOSUPPORT;
+	if (data->gf_version < 2 || data->gf_version > NFSSVC_MAXVERS)
+		return -EINVAL;
+	sin = (struct sockaddr_in *)&data->gf_addr;
+
+	exp_readlock();
+	if (!(clp = exp_getclient(sin)))
+		err = -EPERM;
+	else
+		err = exp_rootfh(clp, to_kdev_t(data->gf_dev), data->gf_ino, NULL, &fh, NFS_FHSIZE);
+	exp_unlock();
+
+	if (err == 0) {
+		if (fh.fh_size > NFS_FHSIZE)
+			err = -EINVAL;
+		else {
+			memset(res,0, NFS_FHSIZE);
+			memcpy(res, &fh.fh_base, fh.fh_size);
+		}
+	}
+
+	return err;
+}
+
+#ifdef CONFIG_NFSD
+#define handle_sys_nfsservctl sys_nfsservctl
+#endif
+
+static struct {
+	int argsize, respsize;
+}  sizes[] = {
+	/* NFSCTL_SVC        */ { sizeof(struct nfsctl_svc), 0 },
+	/* NFSCTL_ADDCLIENT  */ { sizeof(struct nfsctl_client), 0},
+	/* NFSCTL_DELCLIENT  */ { sizeof(struct nfsctl_client), 0},
+	/* NFSCTL_EXPORT     */ { sizeof(struct nfsctl_export), 0},
+	/* NFSCTL_UNEXPORT   */ { sizeof(struct nfsctl_export), 0},
+	/* NFSCTL_UGIDUPDATE */ { sizeof(struct nfsctl_uidmap), 0},
+	/* NFSCTL_GETFH      */ { sizeof(struct nfsctl_fhparm), NFS_FHSIZE},
+	/* NFSCTL_GETFD      */ { sizeof(struct nfsctl_fdparm), NFS_FHSIZE},
+	/* NFSCTL_GETFS      */ { sizeof(struct nfsctl_fsparm), sizeof(struct knfsd_fh)},
+};
+#define CMD_MAX (sizeof(sizes)/sizeof(sizes[0])-1)
+
+long
+asmlinkage handle_sys_nfsservctl(int cmd, void *opaque_argp, void *opaque_resp)
+{
+	struct nfsctl_arg *	argp = opaque_argp;
+	union nfsctl_res *	resp = opaque_resp;
+	struct nfsctl_arg *	arg = NULL;
+	union nfsctl_res *	res = NULL;
+	int			err;
+	int			argsize, respsize;
+
+	lock_kernel ();
+
+	err = -EPERM;
+	if (!capable(CAP_SYS_ADMIN)) {
+		goto done;
+	}
+	err = -EINVAL;
+	if (cmd<0 || cmd > CMD_MAX)
+		goto done;
+	err = -EFAULT;
+	argsize = sizes[cmd].argsize + (int)&((struct nfsctl_arg *)0)->u;
+	respsize = sizes[cmd].respsize;	/* maximum */
+	if (!access_ok(VERIFY_READ, argp, argsize)
+	 || (resp && !access_ok(VERIFY_WRITE, resp, respsize))) {
+		goto done;
+	}
+	err = -ENOMEM;	/* ??? */
+	if (!(arg = kmalloc(sizeof(*arg), GFP_USER)) ||
+	    (resp && !(res = kmalloc(sizeof(*res), GFP_USER)))) {
+		goto done;
+	}
+
+	err = -EINVAL;
+	copy_from_user(arg, argp, argsize);
+	if (arg->ca_version != NFSCTL_VERSION) {
+		printk(KERN_WARNING "nfsd: incompatible version in syscall.\n");
+		goto done;
+	}
+
+	switch(cmd) {
+	case NFSCTL_SVC:
+		err = nfsctl_svc(&arg->ca_svc);
+		break;
+	case NFSCTL_ADDCLIENT:
+		err = nfsctl_addclient(&arg->ca_client);
+		break;
+	case NFSCTL_DELCLIENT:
+		err = nfsctl_delclient(&arg->ca_client);
+		break;
+	case NFSCTL_EXPORT:
+		err = nfsctl_export(&arg->ca_export);
+		break;
+	case NFSCTL_UNEXPORT:
+		err = nfsctl_unexport(&arg->ca_export);
+		break;
+#ifdef notyet
+	case NFSCTL_UGIDUPDATE:
+		err = nfsctl_ugidupdate(&arg->ca_umap);
+		break;
+#endif
+	case NFSCTL_GETFH:
+		err = nfsctl_getfh(&arg->ca_getfh, res->cr_getfh);
+		break;
+	case NFSCTL_GETFD:
+		err = nfsctl_getfd(&arg->ca_getfd, res->cr_getfh);
+		break;
+	case NFSCTL_GETFS:
+		err = nfsctl_getfs(&arg->ca_getfs, &res->cr_getfs);
+		respsize = res->cr_getfs.fh_size+ (int)&((struct knfsd_fh*)0)->fh_base;
+		break;
+	default:
+		err = -EINVAL;
+	}
+
+	if (!err && resp && respsize)
+		copy_to_user(resp, res, respsize);
+
+done:
+	if (arg)
+		kfree(arg);
+	if (res)
+		kfree(res);
+
+	unlock_kernel ();
+	return err;
+}
+
+EXPORT_NO_SYMBOLS;
+MODULE_AUTHOR("Olaf Kirch <okir@monad.swb.de>");
+MODULE_LICENSE("GPL");
+
+#ifdef MODULE
+struct nfsd_linkage nfsd_linkage_s = {
+	do_nfsservctl: handle_sys_nfsservctl,
+	owner: THIS_MODULE,
+};
+#endif
+
+/*
+ * Initialize the module
+ */
+static int __init
+nfsd_init(void)
+{
+	printk(KERN_INFO "Installing knfsd (copyright (C) 1996 okir@monad.swb.de).\n");
+#ifdef MODULE
+	nfsd_linkage = &nfsd_linkage_s;
+#endif
+	nfsd_stat_init();	/* Statistics */
+	nfsd_cache_init();	/* RPC reply cache */
+	nfsd_export_init();	/* Exports table */
+	nfsd_lockd_init();	/* lockd->nfsd callbacks */
+	proc_export_init();
+	return 0;
+}
+
+/*
+ * Clean up the mess before unloading the module
+ */
+static void __exit
+nfsd_exit(void)
+{
+#ifdef MODULE
+	nfsd_linkage = NULL;
+#endif
+	nfsd_export_shutdown();
+	nfsd_cache_shutdown();
+	remove_proc_entry("fs/nfs/exports", NULL);
+	remove_proc_entry("fs/nfs", NULL);
+	nfsd_stat_shutdown();
+	nfsd_lockd_shutdown();
+}
+
+module_init(nfsd_init);
+module_exit(nfsd_exit);
diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c
new file mode 100644
index 00000000000000..c500f1002d3e57
--- /dev/null
+++ b/fs/nfsd/nfsfh.c
@@ -0,0 +1,925 @@
+/*
+ * linux/fs/nfsd/nfsfh.c
+ *
+ * NFS server file handle treatment.
+ *
+ * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
+ * Portions Copyright (C) 1999 G. Allen Morris III <gam3@acm.org>
+ * Extensive rewrite by Neil Brown <neilb@cse.unsw.edu.au> Southern-Spring 1999
+ */
+
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/fs.h>
+#include <linux/unistd.h>
+#include <linux/string.h>
+#include <linux/stat.h>
+#include <linux/dcache.h>
+#include <asm/pgtable.h>
+
+#include <linux/sunrpc/svc.h>
+#include <linux/nfsd/nfsd.h>
+
+#define NFSDDBG_FACILITY		NFSDDBG_FH
+#define NFSD_PARANOIA 1
+/* #define NFSD_DEBUG_VERBOSE 1 */
+
+
+static int nfsd_nr_verified;
+static int nfsd_nr_put;
+
+
+struct nfsd_getdents_callback {
+	char *name;		/* name that was found. It already points to a buffer NAME_MAX+1 is size */
+	unsigned long ino;	/* the inum we are looking for */
+	int found;		/* inode matched? */
+	int sequence;		/* sequence counter */
+};
+
+/*
+ * A rather strange filldir function to capture
+ * the name matching the specified inode number.
+ */
+static int filldir_one(void * __buf, const char * name, int len,
+			loff_t pos, ino_t ino, unsigned int d_type)
+{
+	struct nfsd_getdents_callback *buf = __buf;
+	int result = 0;
+
+	buf->sequence++;
+#ifdef NFSD_DEBUG_VERBOSE
+dprintk("filldir_one: seq=%d, ino=%ld, name=%s\n", buf->sequence, ino, name);
+#endif
+	if (buf->ino == ino) {
+		memcpy(buf->name, name, len);
+		buf->name[len] = '\0';
+		buf->found = 1;
+		result = -1;
+	}
+	return result;
+}
+
+/**
+ * nfsd_get_name - default nfsd_operations->get_name function
+ * @dentry: the directory in which to find a name
+ * @name:   a pointer to a %NAME_MAX+1 char buffer to store the name
+ * @child:  the dentry for the child directory.
+ *
+ * calls readdir on the parent until it finds an entry with
+ * the same inode number as the child, and returns that.
+ */
+static int nfsd_get_name(struct dentry *dentry, char *name,
+			struct dentry *child)
+{
+	struct inode *dir = dentry->d_inode;
+	int error;
+	struct file file;
+	struct nfsd_getdents_callback buffer;
+
+	error = -ENOTDIR;
+	if (!dir || !S_ISDIR(dir->i_mode))
+		goto out;
+	error = -EINVAL;
+	if (!dir->i_fop)
+		goto out;
+	/*
+	 * Open the directory ...
+	 */
+	error = init_private_file(&file, dentry, FMODE_READ);
+	if (error)
+		goto out;
+	error = -EINVAL;
+	if (!file.f_op->readdir)
+		goto out_close;
+
+	buffer.name = name;
+	buffer.ino = child->d_inode->i_ino;
+	buffer.found = 0;
+	buffer.sequence = 0;
+	while (1) {
+		int old_seq = buffer.sequence;
+
+		error = vfs_readdir(&file, filldir_one, &buffer);
+
+		if (error < 0)
+			break;
+
+		error = 0;
+		if (buffer.found)
+			break;
+		error = -ENOENT;
+		if (old_seq == buffer.sequence)
+			break;
+	}
+
+out_close:
+	if (file.f_op->release)
+		file.f_op->release(dir, &file);
+out:
+	return error;
+}
+
+/* this should be provided by each filesystem in an nfsd_operations interface as
+ * iget isn't really the right interface
+ */
+static struct dentry *nfsd_iget(struct super_block *sb, unsigned long ino, __u32 generation)
+{
+
+	/* iget isn't really right if the inode is currently unallocated!!
+	 * This should really all be done inside each filesystem
+	 *
+	 * ext2fs' read_inode has been strengthed to return a bad_inode if the inode
+	 *   had been deleted.
+	 *
+	 * Currently we don't know the generation for parent directory, so a generation
+	 * of 0 means "accept any"
+	 */
+	struct inode *inode;
+	struct list_head *lp;
+	struct dentry *result;
+	if (ino == 0)
+		return ERR_PTR(-ESTALE);
+	inode = iget(sb, ino);
+	if (inode == NULL)
+		return ERR_PTR(-ENOMEM);
+	if (is_bad_inode(inode)
+	    || (generation && inode->i_generation != generation)
+		) {
+		/* we didn't find the right inode.. */
+		dprintk("fh_verify: Inode %lu, Bad count: %d %d or version  %u %u\n",
+			inode->i_ino,
+			inode->i_nlink, atomic_read(&inode->i_count),
+			inode->i_generation,
+			generation);
+
+		iput(inode);
+		return ERR_PTR(-ESTALE);
+	}
+	/* now to find a dentry.
+	 * If possible, get a well-connected one
+	 */
+	spin_lock(&dcache_lock);
+	for (lp = inode->i_dentry.next; lp != &inode->i_dentry ; lp=lp->next) {
+		result = list_entry(lp,struct dentry, d_alias);
+		if (! (result->d_flags & DCACHE_NFSD_DISCONNECTED)) {
+			dget_locked(result);
+			result->d_vfs_flags |= DCACHE_REFERENCED;
+			spin_unlock(&dcache_lock);
+			iput(inode);
+			return result;
+		}
+	}
+	spin_unlock(&dcache_lock);
+	result = d_alloc_root(inode);
+	if (result == NULL) {
+		iput(inode);
+		return ERR_PTR(-ENOMEM);
+	}
+	result->d_flags |= DCACHE_NFSD_DISCONNECTED;
+	return result;
+}
+
+static struct dentry *nfsd_get_dentry(struct super_block *sb, __u32 *fh,
+					     int len, int fhtype, int parent)
+{
+	if (sb->s_op->fh_to_dentry)
+		return sb->s_op->fh_to_dentry(sb, fh, len, fhtype, parent);
+	switch (fhtype) {
+	case 1:
+		if (len < 2)
+			break;
+		if (parent)
+			break;
+		return nfsd_iget(sb, fh[0], fh[1]);
+
+	case 2:
+		if (len < 3)
+			break;
+		if (parent)
+			return nfsd_iget(sb,fh[2],0);
+		return nfsd_iget(sb,fh[0],fh[1]);
+	default: break;
+	}
+	return ERR_PTR(-EINVAL);
+}
+
+
+/* this routine links an IS_ROOT dentry into the dcache tree.  It gains "parent"
+ * as a parent and "name" as a name
+ * It should possibly go in dcache.c
+ */
+int d_splice(struct dentry *target, struct dentry *parent, struct qstr *name)
+{
+	struct dentry *tdentry;
+#ifdef NFSD_PARANOIA
+	if (!IS_ROOT(target))
+		printk("nfsd: d_splice with no-root target: %s/%s\n", parent->d_name.name, name->name);
+	if (!(target->d_flags & DCACHE_NFSD_DISCONNECTED))
+		printk("nfsd: d_splice with non-DISCONNECTED target: %s/%s\n", parent->d_name.name, name->name);
+#endif
+	tdentry = d_alloc(parent, name);
+	if (tdentry == NULL)
+		return -ENOMEM;
+	d_move(target, tdentry);
+
+	/* tdentry will have been made a "child" of target (the parent of target)
+	 * make it an IS_ROOT instead
+	 */
+	spin_lock(&dcache_lock);
+	list_del_init(&tdentry->d_child);
+	tdentry->d_parent = tdentry;
+	spin_unlock(&dcache_lock);
+	d_rehash(target);
+	dput(tdentry);
+
+	/* if parent is properly connected, then we can assert that
+	 * the children are connected, but it must be a singluar (non-forking)
+	 * branch
+	 */
+	if (!(parent->d_flags & DCACHE_NFSD_DISCONNECTED)) {
+		while (target) {
+			target->d_flags &= ~DCACHE_NFSD_DISCONNECTED;
+			parent = target;
+			spin_lock(&dcache_lock);
+			if (list_empty(&parent->d_subdirs))
+				target = NULL;
+			else {
+				target = list_entry(parent->d_subdirs.next, struct dentry, d_child);
+#ifdef NFSD_PARANOIA
+				/* must be only child */
+				if (target->d_child.next != &parent->d_subdirs
+				    || target->d_child.prev != &parent->d_subdirs)
+					printk("nfsd: d_splice found non-singular disconnected branch: %s/%s\n",
+					       parent->d_name.name, target->d_name.name);
+#endif
+			}
+			spin_unlock(&dcache_lock);
+		}
+	}
+	return 0;
+}
+
+/* this routine finds the dentry of the parent of a given directory
+ * it should be in the filesystem accessed by nfsd_operations
+ * it assumes lookup("..") works.
+ */
+struct dentry *nfsd_findparent(struct dentry *child)
+{
+	struct dentry *tdentry, *pdentry;
+	tdentry = d_alloc(child, &(const struct qstr) {"..", 2, 0});
+	if (!tdentry)
+		return ERR_PTR(-ENOMEM);
+
+	/* I'm going to assume that if the returned dentry is different, then
+	 * it is well connected.  But nobody returns different dentrys do they?
+	 */
+	down(&child->d_inode->i_sem);
+	pdentry = child->d_inode->i_op->lookup(child->d_inode, tdentry);
+	up(&child->d_inode->i_sem);
+	d_drop(tdentry); /* we never want ".." hashed */
+	if (!pdentry && tdentry->d_inode == NULL) {
+		/* File system cannot find ".." ... sad but possible */
+		pdentry = ERR_PTR(-EINVAL);
+	}
+	if (!pdentry) {
+		/* I don't want to return a ".." dentry.
+		 * I would prefer to return an unconnected "IS_ROOT" dentry,
+		 * though a properly connected dentry is even better
+		 */
+		/* if first or last of alias list is not tdentry, use that
+		 * else make a root dentry
+		 */
+		struct list_head *aliases = &tdentry->d_inode->i_dentry;
+		spin_lock(&dcache_lock);
+		if (aliases->next != aliases) {
+			pdentry = list_entry(aliases->next, struct dentry, d_alias);
+			if (pdentry == tdentry)
+				pdentry = list_entry(aliases->prev, struct dentry, d_alias);
+			if (pdentry == tdentry)
+				pdentry = NULL;
+			if (pdentry) dget_locked(pdentry);
+		}
+		spin_unlock(&dcache_lock);
+		if (pdentry == NULL) {
+			pdentry = d_alloc_root(tdentry->d_inode);
+			if (pdentry) {
+				igrab(tdentry->d_inode);
+				pdentry->d_flags |= DCACHE_NFSD_DISCONNECTED;
+				pdentry->d_op = child->d_op;
+			}
+		}
+		if (pdentry == NULL)
+			pdentry = ERR_PTR(-ENOMEM);
+	}
+	dput(tdentry); /* it is not hashed, it will be discarded */
+	return pdentry;
+}
+
+static struct dentry *splice(struct dentry *child, struct dentry *parent)
+{
+	int err = 0, nerr;
+	struct qstr qs;
+	char namebuf[256];
+	struct list_head *lp;
+	/* child is an IS_ROOT (anonymous) dentry, but it is hypothesised that
+	 * it should be a child of parent.
+	 * We see if we can find a name and, if we can - splice it in.
+	 * We lookup the name before locking (i_sem) the directory as namelookup
+	 * also claims i_sem.  If the name gets changed then we will loop around
+	 * and try again in find_fh_dentry.
+	 */
+
+	nerr = nfsd_get_name(parent, namebuf, child);
+
+	/*
+	 * We now claim the parent i_sem so that no-one else tries to create
+	 * a dentry in the parent while we are.
+	 */
+	
+	down(&parent->d_inode->i_sem);
+
+	/* Now, things might have changed while we waited.
+	 * Possibly a friendly filesystem found child and spliced it in in response
+	 * to a lookup (though nobody does this yet).  In this case, just succeed.
+	 */
+	if (child->d_parent == parent) goto out;
+	
+	/* Possibly a new dentry has been made for this child->d_inode in
+	 * parent by a lookup.  In this case return that dentry. Caller must
+	 * notice and act accordingly
+	 */
+	spin_lock(&dcache_lock);
+	list_for_each(lp, &child->d_inode->i_dentry) {
+		struct dentry *tmp = list_entry(lp,struct dentry, d_alias);
+		if (!list_empty(&tmp->d_hash) &&
+		    tmp->d_parent == parent) {
+			child = dget_locked(tmp);
+			spin_unlock(&dcache_lock);
+			goto out;
+		}
+	}
+	spin_unlock(&dcache_lock);
+
+	/* now we need that name.  If there was an error getting it, now is th
+	 * time to bail out.
+	 */
+	if ((err = nerr))
+		goto out;
+	qs.name = namebuf;
+	qs.len = strlen(namebuf);
+	if (find_inode_number(parent, &qs) != 0) {
+		/* Now that IS odd.  I wonder what it means... */
+		err = -EEXIST;
+		printk("nfsd-fh: found a name that I didn't expect: %s/%s\n", parent->d_name.name, qs.name);
+		goto out;
+	}
+	err = d_splice(child, parent, &qs);
+	dprintk("nfsd_fh: found name %s for ino %ld\n", child->d_name.name, child->d_inode->i_ino);
+ out:
+	up(&parent->d_inode->i_sem);
+	if (err)
+		return ERR_PTR(err);
+	else
+		return child;
+}
+
+/*
+ * This is the basic lookup mechanism for turning an NFS file handle
+ * into a dentry.
+ * We use nfsd_iget and if that doesn't return a suitably connected dentry,
+ * we try to find the parent, and the parent of that and so-on until a
+ * connection if made.
+ */
+static struct dentry *
+find_fh_dentry(struct super_block *sb, __u32 *datap, int len, int fhtype, int needpath)
+{
+	struct dentry *dentry, *result = NULL;
+	struct dentry *tmp;
+	int err = -ESTALE;
+	/* the sb->s_nfsd_free_path_sem semaphore is needed to make sure that only one unconnected (free)
+	 * dcache path ever exists, as otherwise two partial paths might get
+	 * joined together, which would be very confusing.
+	 * If there is ever an unconnected non-root directory, then this lock
+	 * must be held.
+	 */
+
+
+	nfsdstats.fh_lookup++;
+	/*
+	 * Attempt to find the inode.
+	 */
+ retry:
+	down(&sb->s_nfsd_free_path_sem);
+	result = nfsd_get_dentry(sb, datap, len, fhtype, 0);
+	if (IS_ERR(result)
+	    || !(result->d_flags & DCACHE_NFSD_DISCONNECTED)
+	    || (!S_ISDIR(result->d_inode->i_mode) && ! needpath)) {
+		up(&sb->s_nfsd_free_path_sem);
+	    
+		err = PTR_ERR(result);
+		if (IS_ERR(result))
+			goto err_out;
+		if ((result->d_flags & DCACHE_NFSD_DISCONNECTED))
+			nfsdstats.fh_anon++;
+		return result;
+	}
+
+	/* It's a directory, or we are required to confirm the file's
+	 * location in the tree.
+	 */
+	dprintk("nfs_fh: need to look harder for %d/%d\n",sb->s_dev,datap[0]);
+
+	if (!S_ISDIR(result->d_inode->i_mode)) {
+		nfsdstats.fh_nocache_nondir++;
+			/* need to iget dirino and make sure this inode is in that directory */
+			dentry = nfsd_get_dentry(sb, datap, len, fhtype, 1);
+			err = PTR_ERR(dentry);
+			if (IS_ERR(dentry))
+				goto err_result;
+			err = -ESTALE;
+			if (!dentry->d_inode
+			    || !S_ISDIR(dentry->d_inode->i_mode)) {
+				goto err_dentry;
+			}
+			tmp = splice(result, dentry);
+			err = PTR_ERR(tmp);
+			if (IS_ERR(tmp))
+				goto err_dentry;
+			if (tmp != result) {
+				/* it is safe to just use tmp instead, but we must discard result first */
+				d_drop(result);
+				dput(result);
+				result = tmp;
+			}
+	} else {
+		nfsdstats.fh_nocache_dir++;
+		dentry = dget(result);
+	}
+
+	while(dentry->d_flags & DCACHE_NFSD_DISCONNECTED) {
+		/* LOOP INVARIANT */
+		/* haven't found a place in the tree yet, but we do have a free path
+		 * from dentry down to result, and dentry is a directory.
+		 * Have a hold on dentry and result */
+		struct dentry *pdentry;
+		struct inode *parent;
+
+		pdentry = nfsd_findparent(dentry);
+		err = PTR_ERR(pdentry);
+		if (IS_ERR(pdentry))
+			goto err_dentry;
+		parent = pdentry->d_inode;
+		err = -EACCES;
+		if (!parent) {
+			dput(pdentry);
+			goto err_dentry;
+		}
+
+		tmp = splice(dentry, pdentry);
+		if (tmp != dentry) {
+			/* Something wrong.  We need to drop the whole dentry->result path
+			 * whatever it was
+			 */
+			struct dentry *d;
+			for (d=result ; d ; d=(d->d_parent == d)?NULL:d->d_parent)
+				d_drop(d);
+		}
+		if (IS_ERR(tmp)) {
+			err = PTR_ERR(tmp);
+			dput(pdentry);
+			goto err_dentry;
+		}
+		if (tmp != dentry) {
+			/* we lost a race,  try again
+			 */
+			dput(pdentry);
+			dput(tmp);
+			dput(dentry);
+			dput(result);	/* this will discard the whole free path, so we can up the semaphore */
+			up(&sb->s_nfsd_free_path_sem);
+			goto retry;
+		}
+		dput(dentry);
+		dentry = pdentry;
+	}
+	dput(dentry);
+	up(&sb->s_nfsd_free_path_sem);
+	return result;
+
+err_dentry:
+	dput(dentry);
+err_result:
+	dput(result);
+	up(&sb->s_nfsd_free_path_sem);
+err_out:
+	if (err == -ESTALE)
+		nfsdstats.fh_stale++;
+	return ERR_PTR(err);
+}
+
+/*
+ * Perform sanity checks on the dentry in a client's file handle.
+ *
+ * Note that the file handle dentry may need to be freed even after
+ * an error return.
+ *
+ * This is only called at the start of an nfsproc call, so fhp points to
+ * a svc_fh which is all 0 except for the over-the-wire file handle.
+ */
+u32
+fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, int type, int access)
+{
+	struct knfsd_fh	*fh = &fhp->fh_handle;
+	struct svc_export *exp;
+	struct dentry	*dentry;
+	struct inode	*inode;
+	u32		error = 0;
+
+	dprintk("nfsd: fh_verify(%s)\n", SVCFH_fmt(fhp));
+
+	/* keep this filehandle for possible reference  when encoding attributes */
+	rqstp->rq_reffh = fh;
+
+	if (!fhp->fh_dentry) {
+		kdev_t xdev = NODEV;
+		ino_t xino = 0;
+		__u32 *datap=NULL;
+		int data_left = fh->fh_size/4;
+		int nfsdev;
+		int fsid = 0;
+
+		error = nfserr_stale;
+		if (rqstp->rq_vers == 3)
+			error = nfserr_badhandle;
+		if (fh->fh_version == 1) {
+			
+			datap = fh->fh_auth;
+			if (--data_left<0) goto out;
+			switch (fh->fh_auth_type) {
+			case 0: break;
+			default: goto out;
+			}
+
+			switch (fh->fh_fsid_type) {
+			case 0:
+				if ((data_left-=2)<0) goto out;
+				nfsdev = ntohl(*datap++);
+				xdev = MKDEV(nfsdev>>16, nfsdev&0xFFFF);
+				xino = *datap++;
+				break;
+			case 1:
+				if ((data_left-=1)<0) goto out;
+				fsid = *datap++;
+				break;
+			default:
+				goto out;
+			}
+		} else {
+			if (fh->fh_size != NFS_FHSIZE)
+				goto out;
+			/* assume old filehandle format */
+			xdev = u32_to_kdev_t(fh->ofh_xdev);
+			xino = u32_to_ino_t(fh->ofh_xino);
+		}
+
+		/*
+		 * Look up the export entry.
+		 */
+		error = nfserr_stale; 
+		if (fh->fh_version == 1 && fh->fh_fsid_type == 1)
+			exp = exp_get_fsid(rqstp->rq_client, fsid);
+		else
+			exp = exp_get(rqstp->rq_client, xdev, xino);
+
+		if (!exp)
+			/* export entry revoked */
+			goto out;
+
+		/* Check if the request originated from a secure port. */
+		error = nfserr_perm;
+		if (!rqstp->rq_secure && EX_SECURE(exp)) {
+			printk(KERN_WARNING
+			       "nfsd: request from insecure port (%08x:%d)!\n",
+			       ntohl(rqstp->rq_addr.sin_addr.s_addr),
+			       ntohs(rqstp->rq_addr.sin_port));
+			goto out;
+		}
+
+		/* Set user creds if we haven't done so already. */
+		nfsd_setuser(rqstp, exp);
+
+		/*
+		 * Look up the dentry using the NFS file handle.
+		 */
+		error = nfserr_stale;
+		if (rqstp->rq_vers == 3)
+			error = nfserr_badhandle;
+
+		if (fh->fh_version == 1) {
+			/* if fileid_type != 0, and super_operations provide fh_to_dentry lookup,
+			 *  then should use that */
+			switch (fh->fh_fileid_type) {
+			case 0:
+				dentry = dget(exp->ex_dentry);
+				/* need to revalidate the inode */
+				inode = dentry->d_inode;
+				if (inode->i_op && inode->i_op->revalidate)
+					if (inode->i_op->revalidate(dentry)) {
+						dput(dentry);
+						dentry = ERR_PTR(-ESTALE);
+					}
+				break;
+			default:
+				dentry = find_fh_dentry(exp->ex_dentry->d_inode->i_sb,
+							datap, data_left, fh->fh_fileid_type,
+							!(exp->ex_flags & NFSEXP_NOSUBTREECHECK));
+			}
+		} else {
+			__u32 tfh[3];
+			tfh[0] = fh->ofh_ino;
+			tfh[1] = fh->ofh_generation;
+			tfh[2] = fh->ofh_dirino;
+			dentry = find_fh_dentry(exp->ex_dentry->d_inode->i_sb,
+						tfh, 3, fh->ofh_dirino?2:1,
+						!(exp->ex_flags & NFSEXP_NOSUBTREECHECK));
+		}
+		if (IS_ERR(dentry)) {
+			if (PTR_ERR(dentry) != -EINVAL)
+				error = nfserrno(PTR_ERR(dentry));
+			goto out;
+		}
+#ifdef NFSD_PARANOIA
+		if (S_ISDIR(dentry->d_inode->i_mode) &&
+		    (dentry->d_flags & DCACHE_NFSD_DISCONNECTED)) {
+			printk("nfsd: find_fh_dentry returned a DISCONNECTED directory: %s/%s\n",
+			       dentry->d_parent->d_name.name, dentry->d_name.name);
+		}
+#endif
+
+		fhp->fh_dentry = dentry;
+		fhp->fh_export = exp;
+		nfsd_nr_verified++;
+	} else {
+		/* just rechecking permissions
+		 * (e.g. nfsproc_create calls fh_verify, then nfsd_create does as well)
+		 */
+		dprintk("nfsd: fh_verify - just checking\n");
+		dentry = fhp->fh_dentry;
+		exp = fhp->fh_export;
+	}
+
+	inode = dentry->d_inode;
+
+	/* Type check. The correct error return for type mismatches
+	 * does not seem to be generally agreed upon. SunOS seems to
+	 * use EISDIR if file isn't S_IFREG; a comment in the NFSv3
+	 * spec says this is incorrect (implementation notes for the
+	 * write call).
+	 */
+
+	/* Type can be negative to e.g. exclude directories from linking */
+	if (type > 0 && (inode->i_mode & S_IFMT) != type) {
+		if (type == S_IFDIR)
+			error = nfserr_notdir;
+		else if ((inode->i_mode & S_IFMT) == S_IFDIR)
+			error = nfserr_isdir;
+		else
+			error = nfserr_inval;
+		goto out;
+	}
+	if (type < 0 && (inode->i_mode & S_IFMT) == -type) {
+		error = (type == -S_IFDIR)? nfserr_isdir : nfserr_notdir;
+		goto out;
+	}
+
+	/*
+	 * Security: Check that the export is valid for dentry <gam3@acm.org>
+	 */
+	error = 0;
+
+	if (!(exp->ex_flags & NFSEXP_NOSUBTREECHECK)) {
+		struct dentry *tdentry = dentry;
+
+		while (tdentry != exp->ex_dentry && !IS_ROOT(tdentry)) {
+			struct dentry *parent = tdentry->d_parent;
+
+			/* make sure parents give x permission to user */
+			error = permission(parent->d_inode, MAY_EXEC);
+			if (error)
+				break;
+			tdentry = parent;
+		}
+		if (exp->ex_dentry != tdentry) {
+			error = nfserr_stale;
+			printk("fh_verify: no root_squashed access at %s/%s.\n",
+			       dentry->d_parent->d_name.name,
+			       dentry->d_name.name);
+			goto out;
+		}
+	}
+
+	/* Finally, check access permissions. */
+	if (!error) {
+		error = nfsd_permission(exp, dentry, access);
+	}
+#ifdef NFSD_PARANOIA_EXTREME
+	if (error) {
+		printk("fh_verify: %s/%s permission failure, acc=%x, error=%d\n",
+		       dentry->d_parent->d_name.name, dentry->d_name.name, access, (error >> 24));
+	}
+#endif
+out:
+	if (error == nfserr_stale)
+		nfsdstats.fh_stale++;
+	return error;
+}
+
+/*
+ * Compose a file handle for an NFS reply.
+ *
+ * Note that when first composed, the dentry may not yet have
+ * an inode.  In this case a call to fh_update should be made
+ * before the fh goes out on the wire ...
+ */
+inline int _fh_update(struct dentry *dentry, struct svc_export *exp,
+		      __u32 *datap, int *maxsize)
+{
+	struct super_block *sb = dentry->d_inode->i_sb;
+	
+	if (dentry == exp->ex_dentry) {
+		*maxsize = 0;
+		return 0;
+	}
+
+	if (sb->s_op->dentry_to_fh) {
+		int need_parent = !S_ISDIR(dentry->d_inode->i_mode) &&
+			!(exp->ex_flags & NFSEXP_NOSUBTREECHECK);
+		
+		int type = sb->s_op->dentry_to_fh(dentry, datap, maxsize, need_parent);
+		return type;
+	}
+
+	if (*maxsize < 2)
+		return 255;
+	*datap++ = ino_t_to_u32(dentry->d_inode->i_ino);
+	*datap++ = dentry->d_inode->i_generation;
+	if (*maxsize ==2 ||
+	    S_ISDIR(dentry->d_inode->i_mode) ||
+	    (exp->ex_flags & NFSEXP_NOSUBTREECHECK)) {
+		*maxsize = 2;
+		return 1;
+	}
+	*datap++ = ino_t_to_u32(dentry->d_parent->d_inode->i_ino);
+	*maxsize = 3;
+	return 2;
+}
+
+/*
+ * for composing old style file handles
+ */
+inline void _fh_update_old(struct dentry *dentry, struct svc_export *exp,
+			   struct knfsd_fh *fh)
+{
+	fh->ofh_ino = ino_t_to_u32(dentry->d_inode->i_ino);
+	fh->ofh_generation = dentry->d_inode->i_generation;
+	if (S_ISDIR(dentry->d_inode->i_mode) ||
+	    (exp->ex_flags & NFSEXP_NOSUBTREECHECK))
+		fh->ofh_dirino = 0;
+}
+
+int
+fh_compose(struct svc_fh *fhp, struct svc_export *exp, struct dentry *dentry, struct svc_fh *ref_fh)
+{
+	/* ref_fh is a reference file handle.
+	 * if it is non-null, then we should compose a filehandle which is
+	 * of the same version, where possible.
+	 * Currently, that means that if ref_fh->fh_handle.fh_version == 0xca
+	 * Then create a 32byte filehandle using nfs_fhbase_old
+	 * But only do this if dentry_to_fh is not available
+	 *
+	 */
+	
+	struct inode * inode = dentry->d_inode;
+	struct dentry *parent = dentry->d_parent;
+	__u32 *datap;
+
+	dprintk("nfsd: fh_compose(exp %x/%ld %s/%s, ino=%ld)\n",
+		exp->ex_dev, (long) exp->ex_ino,
+		parent->d_name.name, dentry->d_name.name,
+		(inode ? inode->i_ino : 0));
+
+	if (fhp->fh_locked || fhp->fh_dentry) {
+		printk(KERN_ERR "fh_compose: fh %s/%s not initialized!\n",
+			parent->d_name.name, dentry->d_name.name);
+	}
+	if (fhp->fh_maxsize < NFS_FHSIZE)
+		printk(KERN_ERR "fh_compose: called with maxsize %d! %s/%s\n",
+		       fhp->fh_maxsize, parent->d_name.name, dentry->d_name.name);
+
+	fhp->fh_dentry = dentry; /* our internal copy */
+	fhp->fh_export = exp;
+
+	if (ref_fh &&
+	    ref_fh->fh_handle.fh_version == 0xca &&
+	    parent->d_inode->i_sb->s_op->dentry_to_fh == NULL) {
+		/* old style filehandle please */
+		memset(&fhp->fh_handle.fh_base, 0, NFS_FHSIZE);
+		fhp->fh_handle.fh_size = NFS_FHSIZE;
+		fhp->fh_handle.ofh_dcookie = 0xfeebbaca;
+		fhp->fh_handle.ofh_dev =  htonl((MAJOR(exp->ex_dev)<<16)| MINOR(exp->ex_dev));
+		fhp->fh_handle.ofh_xdev = fhp->fh_handle.ofh_dev;
+		fhp->fh_handle.ofh_xino = ino_t_to_u32(exp->ex_ino);
+		fhp->fh_handle.ofh_dirino = ino_t_to_u32(dentry->d_parent->d_inode->i_ino);
+		if (inode)
+			_fh_update_old(dentry, exp, &fhp->fh_handle);
+	} else {
+		fhp->fh_handle.fh_version = 1;
+		fhp->fh_handle.fh_auth_type = 0;
+		datap = fhp->fh_handle.fh_auth+0;
+		if ((exp->ex_flags & NFSEXP_FSID) &&
+		    (!ref_fh || ref_fh->fh_handle.fh_fsid_type == 1)) {
+			fhp->fh_handle.fh_fsid_type = 1;
+			/* fsid_type 1 == 4 bytes filesystem id */
+			*datap++ = exp->ex_fsid;
+			fhp->fh_handle.fh_size = 2*4;
+		} else {
+			fhp->fh_handle.fh_fsid_type = 0;
+			/* fsid_type 0 == 2byte major, 2byte minor, 4byte inode */
+			*datap++ = htonl((MAJOR(exp->ex_dev)<<16)| MINOR(exp->ex_dev));
+			*datap++ = ino_t_to_u32(exp->ex_ino);
+			fhp->fh_handle.fh_size = 3*4;
+		}
+		if (inode) {
+			int size = fhp->fh_maxsize/4 - 3;
+			fhp->fh_handle.fh_fileid_type =
+				_fh_update(dentry, exp, datap, &size);
+			fhp->fh_handle.fh_size += size*4;
+		}
+	}
+
+	nfsd_nr_verified++;
+	if (fhp->fh_handle.fh_fileid_type == 255)
+		return nfserr_opnotsupp;
+	return 0;
+}
+
+/*
+ * Update file handle information after changing a dentry.
+ * This is only called by nfsd_create, nfsd_create_v3 and nfsd_proc_create
+ */
+int
+fh_update(struct svc_fh *fhp)
+{
+	struct dentry *dentry;
+	__u32 *datap;
+	
+	if (!fhp->fh_dentry)
+		goto out_bad;
+
+	dentry = fhp->fh_dentry;
+	if (!dentry->d_inode)
+		goto out_negative;
+	if (fhp->fh_handle.fh_version != 1) {
+		_fh_update_old(dentry, fhp->fh_export, &fhp->fh_handle);
+	} else {
+		int size;
+		if (fhp->fh_handle.fh_fileid_type != 0)
+			goto out_uptodate;
+		datap = fhp->fh_handle.fh_auth+
+			fhp->fh_handle.fh_size/4 -1;
+		size = (fhp->fh_maxsize - fhp->fh_handle.fh_size)/4;
+		fhp->fh_handle.fh_fileid_type =
+			_fh_update(dentry, fhp->fh_export, datap, &size);
+		fhp->fh_handle.fh_size += size*4;
+	}
+out:
+	return 0;
+
+out_bad:
+	printk(KERN_ERR "fh_update: fh not verified!\n");
+	goto out;
+out_negative:
+	printk(KERN_ERR "fh_update: %s/%s still negative!\n",
+		dentry->d_parent->d_name.name, dentry->d_name.name);
+	goto out;
+out_uptodate:
+	printk(KERN_ERR "fh_update: %s/%s already up-to-date!\n",
+		dentry->d_parent->d_name.name, dentry->d_name.name);
+	goto out;
+}
+
+/*
+ * Release a file handle.
+ */
+void
+fh_put(struct svc_fh *fhp)
+{
+	struct dentry * dentry = fhp->fh_dentry;
+	if (dentry) {
+		fh_unlock(fhp);
+		fhp->fh_dentry = NULL;
+		dput(dentry);
+		nfsd_nr_put++;
+	}
+	return;
+}
diff --git a/fs/nfsd/nfsproc.c b/fs/nfsd/nfsproc.c
new file mode 100644
index 00000000000000..fefab47a8c1baf
--- /dev/null
+++ b/fs/nfsd/nfsproc.c
@@ -0,0 +1,609 @@
+/*
+ * nfsproc2.c	Process version 2 NFS requests.
+ * linux/fs/nfsd/nfs2proc.c
+ * 
+ * Process version 2 NFS requests.
+ *
+ * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#include <linux/linkage.h>
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <linux/fs.h>
+#include <linux/stat.h>
+#include <linux/fcntl.h>
+#include <linux/net.h>
+#include <linux/in.h>
+#include <linux/version.h>
+#include <linux/unistd.h>
+#include <linux/slab.h>
+
+#include <linux/sunrpc/svc.h>
+#include <linux/nfsd/nfsd.h>
+#include <linux/nfsd/cache.h>
+#include <linux/nfsd/xdr.h>
+
+typedef struct svc_rqst	svc_rqst;
+typedef struct svc_buf	svc_buf;
+
+#define NFSDDBG_FACILITY		NFSDDBG_PROC
+
+
+static void
+svcbuf_reserve(struct svc_buf *buf, u32 **ptr, int *len, int nr)
+{
+	*ptr = buf->buf + nr;
+	*len = buf->buflen - buf->len - nr;
+}
+
+static int
+nfsd_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
+{
+	return nfs_ok;
+}
+
+/*
+ * Get a file's attributes
+ * N.B. After this call resp->fh needs an fh_put
+ */
+static int
+nfsd_proc_getattr(struct svc_rqst *rqstp, struct nfsd_fhandle  *argp,
+					  struct nfsd_attrstat *resp)
+{
+	dprintk("nfsd: GETATTR  %s\n", SVCFH_fmt(&argp->fh));
+
+	fh_copy(&resp->fh, &argp->fh);
+	return fh_verify(rqstp, &resp->fh, 0, MAY_NOP);
+}
+
+/*
+ * Set a file's attributes
+ * N.B. After this call resp->fh needs an fh_put
+ */
+static int
+nfsd_proc_setattr(struct svc_rqst *rqstp, struct nfsd_sattrargs *argp,
+					  struct nfsd_attrstat  *resp)
+{
+	dprintk("nfsd: SETATTR  %s, valid=%x, size=%ld\n",
+		SVCFH_fmt(&argp->fh),
+		argp->attrs.ia_valid, (long) argp->attrs.ia_size);
+
+	fh_copy(&resp->fh, &argp->fh);
+	return nfsd_setattr(rqstp, &resp->fh, &argp->attrs,0, (time_t)0);
+}
+
+/*
+ * Look up a path name component
+ * Note: the dentry in the resp->fh may be negative if the file
+ * doesn't exist yet.
+ * N.B. After this call resp->fh needs an fh_put
+ */
+static int
+nfsd_proc_lookup(struct svc_rqst *rqstp, struct nfsd_diropargs *argp,
+					 struct nfsd_diropres  *resp)
+{
+	int	nfserr;
+
+	dprintk("nfsd: LOOKUP   %s %.*s\n",
+		SVCFH_fmt(&argp->fh), argp->len, argp->name);
+
+	fh_init(&resp->fh, NFS_FHSIZE);
+	nfserr = nfsd_lookup(rqstp, &argp->fh, argp->name, argp->len,
+				 &resp->fh);
+
+	fh_put(&argp->fh);
+	return nfserr;
+}
+
+/*
+ * Read a symlink.
+ */
+static int
+nfsd_proc_readlink(struct svc_rqst *rqstp, struct nfsd_fhandle     *argp,
+					   struct nfsd_readlinkres *resp)
+{
+	u32		*path;
+	int		dummy, nfserr;
+
+	dprintk("nfsd: READLINK %s\n", SVCFH_fmt(&argp->fh));
+
+	/* Reserve room for status and path length */
+	svcbuf_reserve(&rqstp->rq_resbuf, &path, &dummy, 2);
+
+	/* Read the symlink. */
+	resp->len = NFS_MAXPATHLEN;
+	nfserr = nfsd_readlink(rqstp, &argp->fh, (char *) path, &resp->len);
+
+	fh_put(&argp->fh);
+	return nfserr;
+}
+
+/*
+ * Read a portion of a file.
+ * N.B. After this call resp->fh needs an fh_put
+ */
+static int
+nfsd_proc_read(struct svc_rqst *rqstp, struct nfsd_readargs *argp,
+				       struct nfsd_readres  *resp)
+{
+	u32 *	buffer;
+	int	nfserr, avail;
+
+	dprintk("nfsd: READ    %s %d bytes at %d\n",
+		SVCFH_fmt(&argp->fh),
+		argp->count, argp->offset);
+
+	/* Obtain buffer pointer for payload. 19 is 1 word for
+	 * status, 17 words for fattr, and 1 word for the byte count.
+	 */
+	svcbuf_reserve(&rqstp->rq_resbuf, &buffer, &avail, 19);
+
+	if ((avail << 2) < argp->count) {
+		printk(KERN_NOTICE
+			"oversized read request from %08x:%d (%d bytes)\n",
+				ntohl(rqstp->rq_addr.sin_addr.s_addr),
+				ntohs(rqstp->rq_addr.sin_port),
+				argp->count);
+		argp->count = avail << 2;
+	}
+	svc_reserve(rqstp, (19<<2) + argp->count + 4);
+
+	resp->count = argp->count;
+	nfserr = nfsd_read(rqstp, fh_copy(&resp->fh, &argp->fh),
+				  argp->offset,
+				  (char *) buffer,
+				  &resp->count);
+
+	return nfserr;
+}
+
+/*
+ * Write data to a file
+ * N.B. After this call resp->fh needs an fh_put
+ */
+static int
+nfsd_proc_write(struct svc_rqst *rqstp, struct nfsd_writeargs *argp,
+					struct nfsd_attrstat  *resp)
+{
+	int	nfserr;
+	int	stable = 1;
+
+	dprintk("nfsd: WRITE    %s %d bytes at %d\n",
+		SVCFH_fmt(&argp->fh),
+		argp->len, argp->offset);
+
+	nfserr = nfsd_write(rqstp, fh_copy(&resp->fh, &argp->fh),
+				   argp->offset,
+				   argp->data,
+				   argp->len,
+				   &stable);
+	return nfserr;
+}
+
+/*
+ * CREATE processing is complicated. The keyword here is `overloaded.'
+ * The parent directory is kept locked between the check for existence
+ * and the actual create() call in compliance with VFS protocols.
+ * N.B. After this call _both_ argp->fh and resp->fh need an fh_put
+ */
+static int
+nfsd_proc_create(struct svc_rqst *rqstp, struct nfsd_createargs *argp,
+					 struct nfsd_diropres   *resp)
+{
+	svc_fh		*dirfhp = &argp->fh;
+	svc_fh		*newfhp = &resp->fh;
+	struct iattr	*attr = &argp->attrs;
+	struct inode	*inode;
+	struct dentry	*dchild;
+	int		nfserr, type, mode;
+	dev_t		rdev = NODEV;
+
+	dprintk("nfsd: CREATE   %s %.*s\n",
+		SVCFH_fmt(dirfhp), argp->len, argp->name);
+
+	/* First verify the parent file handle */
+	nfserr = fh_verify(rqstp, dirfhp, S_IFDIR, MAY_EXEC);
+	if (nfserr)
+		goto done; /* must fh_put dirfhp even on error */
+
+	/* Check for MAY_WRITE in nfsd_create if necessary */
+
+	nfserr = nfserr_acces;
+	if (!argp->len)
+		goto done;
+	nfserr = nfserr_exist;
+	if (isdotent(argp->name, argp->len))
+		goto done;
+	fh_lock(dirfhp);
+	dchild = lookup_one_len(argp->name, dirfhp->fh_dentry, argp->len);
+	if (IS_ERR(dchild)) {
+		nfserr = nfserrno(PTR_ERR(dchild));
+		goto out_unlock;
+	}
+	fh_init(newfhp, NFS_FHSIZE);
+	nfserr = fh_compose(newfhp, dirfhp->fh_export, dchild, dirfhp);
+	if (!nfserr && !dchild->d_inode)
+		nfserr = nfserr_noent;
+	if (nfserr) {
+		if (nfserr != nfserr_noent)
+			goto out_unlock;
+		/*
+		 * If the new file handle wasn't verified, we can't tell
+		 * whether the file exists or not. Time to bail ...
+		 */
+		nfserr = nfserr_acces;
+		if (!newfhp->fh_dentry) {
+			printk(KERN_WARNING 
+				"nfsd_proc_create: file handle not verified\n");
+			goto out_unlock;
+		}
+	}
+
+	inode = newfhp->fh_dentry->d_inode;
+
+	/* Unfudge the mode bits */
+	if (attr->ia_valid & ATTR_MODE) { 
+		type = attr->ia_mode & S_IFMT;
+		mode = attr->ia_mode & ~S_IFMT;
+		if (!type) {
+			/* no type, so if target exists, assume same as that,
+			 * else assume a file */
+			if (inode) {
+				type = inode->i_mode & S_IFMT;
+				switch(type) {
+				case S_IFCHR:
+				case S_IFBLK:
+					/* reserve rdev for later checking */
+					attr->ia_size = inode->i_rdev;
+					attr->ia_valid |= ATTR_SIZE;
+
+					/* FALLTHROUGH */
+				case S_IFIFO:
+					/* this is probably a permission check..
+					 * at least IRIX implements perm checking on
+					 *   echo thing > device-special-file-or-pipe
+					 * by doing a CREATE with type==0
+					 */
+					nfserr = nfsd_permission(newfhp->fh_export,
+								 newfhp->fh_dentry,
+								 MAY_WRITE|_NFSD_IRIX_BOGOSITY);
+					if (nfserr && nfserr != nfserr_rofs)
+						goto out_unlock;
+				}
+			} else
+				type = S_IFREG;
+		}
+	} else if (inode) {
+		type = inode->i_mode & S_IFMT;
+		mode = inode->i_mode & ~S_IFMT;
+	} else {
+		type = S_IFREG;
+		mode = 0;	/* ??? */
+	}
+
+	attr->ia_valid |= ATTR_MODE;
+	attr->ia_mode = mode;
+
+	/* Special treatment for non-regular files according to the
+	 * gospel of sun micro
+	 */
+	if (type != S_IFREG) {
+		int	is_borc = 0;
+		u32	size = attr->ia_size;
+
+		rdev = (dev_t) size;
+		if (type != S_IFBLK && type != S_IFCHR) {
+			rdev = 0;
+		} else if (type == S_IFCHR && !(attr->ia_valid & ATTR_SIZE)) {
+			/* If you think you've seen the worst, grok this. */
+			type = S_IFIFO;
+		} else if (size != rdev) {
+			/* dev got truncated because of 16bit Linux dev_t */
+			nfserr = nfserr_inval;
+			goto out_unlock;
+		} else {
+			/* Okay, char or block special */
+			is_borc = 1;
+		}
+
+		/* we've used the SIZE information, so discard it */
+		attr->ia_valid &= ~ATTR_SIZE;
+
+		/* Make sure the type and device matches */
+		nfserr = nfserr_exist;
+		if (inode && (type != (inode->i_mode & S_IFMT) || 
+		    (is_borc && inode->i_rdev != rdev)))
+			goto out_unlock;
+	}
+	
+	nfserr = 0;
+	if (!inode) {
+		/* File doesn't exist. Create it and set attrs */
+		nfserr = nfsd_create(rqstp, dirfhp, argp->name, argp->len,
+					attr, type, rdev, newfhp);
+	} else if (type == S_IFREG) {
+		dprintk("nfsd:   existing %s, valid=%x, size=%ld\n",
+			argp->name, attr->ia_valid, (long) attr->ia_size);
+		/* File already exists. We ignore all attributes except
+		 * size, so that creat() behaves exactly like
+		 * open(..., O_CREAT|O_TRUNC|O_WRONLY).
+		 */
+		attr->ia_valid &= ATTR_SIZE;
+		if (attr->ia_valid)
+			nfserr = nfsd_setattr(rqstp, newfhp, attr, 0, (time_t)0);
+	}
+
+out_unlock:
+	/* We don't really need to unlock, as fh_put does it. */
+	fh_unlock(dirfhp);
+
+done:
+	fh_put(dirfhp);
+	return nfserr;
+}
+
+static int
+nfsd_proc_remove(struct svc_rqst *rqstp, struct nfsd_diropargs *argp,
+					 void		       *resp)
+{
+	int	nfserr;
+
+	dprintk("nfsd: REMOVE   %s %.*s\n", SVCFH_fmt(&argp->fh),
+		argp->len, argp->name);
+
+	/* Unlink. -SIFDIR means file must not be a directory */
+	nfserr = nfsd_unlink(rqstp, &argp->fh, -S_IFDIR, argp->name, argp->len);
+	fh_put(&argp->fh);
+	return nfserr;
+}
+
+static int
+nfsd_proc_rename(struct svc_rqst *rqstp, struct nfsd_renameargs *argp,
+				  	 void		        *resp)
+{
+	int	nfserr;
+
+	dprintk("nfsd: RENAME   %s %.*s -> \n",
+		SVCFH_fmt(&argp->ffh), argp->flen, argp->fname);
+	dprintk("nfsd:        ->  %s %.*s\n",
+		SVCFH_fmt(&argp->tfh), argp->tlen, argp->tname);
+
+	nfserr = nfsd_rename(rqstp, &argp->ffh, argp->fname, argp->flen,
+				    &argp->tfh, argp->tname, argp->tlen);
+	fh_put(&argp->ffh);
+	fh_put(&argp->tfh);
+	return nfserr;
+}
+
+static int
+nfsd_proc_link(struct svc_rqst *rqstp, struct nfsd_linkargs *argp,
+				void			    *resp)
+{
+	int	nfserr;
+
+	dprintk("nfsd: LINK     %s ->\n",
+		SVCFH_fmt(&argp->ffh));
+	dprintk("nfsd:    %s %.*s\n",
+		SVCFH_fmt(&argp->tfh),
+		argp->tlen,
+		argp->tname);
+
+	nfserr = nfsd_link(rqstp, &argp->tfh, argp->tname, argp->tlen,
+				  &argp->ffh);
+	fh_put(&argp->ffh);
+	fh_put(&argp->tfh);
+	return nfserr;
+}
+
+static int
+nfsd_proc_symlink(struct svc_rqst *rqstp, struct nfsd_symlinkargs *argp,
+				          void			  *resp)
+{
+	struct svc_fh	newfh;
+	int		nfserr;
+
+	dprintk("nfsd: SYMLINK  %s %.*s -> %.*s\n",
+		SVCFH_fmt(&argp->ffh), argp->flen, argp->fname,
+		argp->tlen, argp->tname);
+
+	fh_init(&newfh, NFS_FHSIZE);
+	/*
+	 * Create the link, look up new file and set attrs.
+	 */
+	nfserr = nfsd_symlink(rqstp, &argp->ffh, argp->fname, argp->flen,
+						 argp->tname, argp->tlen,
+				 		 &newfh, &argp->attrs);
+
+
+	fh_put(&argp->ffh);
+	fh_put(&newfh);
+	return nfserr;
+}
+
+/*
+ * Make directory. This operation is not idempotent.
+ * N.B. After this call resp->fh needs an fh_put
+ */
+static int
+nfsd_proc_mkdir(struct svc_rqst *rqstp, struct nfsd_createargs *argp,
+					struct nfsd_diropres   *resp)
+{
+	int	nfserr;
+
+	dprintk("nfsd: MKDIR    %s %.*s\n", SVCFH_fmt(&argp->fh), argp->len, argp->name);
+
+	if (resp->fh.fh_dentry) {
+		printk(KERN_WARNING
+			"nfsd_proc_mkdir: response already verified??\n");
+	}
+
+	argp->attrs.ia_valid &= ~ATTR_SIZE;
+	fh_init(&resp->fh, NFS_FHSIZE);
+	nfserr = nfsd_create(rqstp, &argp->fh, argp->name, argp->len,
+				    &argp->attrs, S_IFDIR, 0, &resp->fh);
+	fh_put(&argp->fh);
+	return nfserr;
+}
+
+/*
+ * Remove a directory
+ */
+static int
+nfsd_proc_rmdir(struct svc_rqst *rqstp, struct nfsd_diropargs *argp,
+				 	void		      *resp)
+{
+	int	nfserr;
+
+	dprintk("nfsd: RMDIR    %s %.*s\n", SVCFH_fmt(&argp->fh), argp->len, argp->name);
+
+	nfserr = nfsd_unlink(rqstp, &argp->fh, S_IFDIR, argp->name, argp->len);
+	fh_put(&argp->fh);
+	return nfserr;
+}
+
+/*
+ * Read a portion of a directory.
+ */
+static int
+nfsd_proc_readdir(struct svc_rqst *rqstp, struct nfsd_readdirargs *argp,
+					  struct nfsd_readdirres  *resp)
+{
+	u32 *		buffer;
+	int		nfserr, count;
+
+	dprintk("nfsd: READDIR  %s %d bytes at %d\n",
+		SVCFH_fmt(&argp->fh),		
+		argp->count, argp->cookie);
+
+	/* Reserve buffer space for status */
+	svcbuf_reserve(&rqstp->rq_resbuf, &buffer, &count, 1);
+
+	/* Shrink to the client read size */
+	if (count > (argp->count >> 2))
+		count = argp->count >> 2;
+
+	/* Make sure we've room for the NULL ptr & eof flag */
+	count -= 2;
+	if (count < 0)
+		count = 0;
+
+	/* Read directory and encode entries on the fly */
+	nfserr = nfsd_readdir(rqstp, &argp->fh, (loff_t) argp->cookie, 
+			      nfssvc_encode_entry,
+			      buffer, &count, NULL);
+	resp->count = count;
+
+	fh_put(&argp->fh);
+	return nfserr;
+}
+
+/*
+ * Get file system info
+ */
+static int
+nfsd_proc_statfs(struct svc_rqst * rqstp, struct nfsd_fhandle   *argp,
+					  struct nfsd_statfsres *resp)
+{
+	int	nfserr;
+
+	dprintk("nfsd: STATFS   %s\n", SVCFH_fmt(&argp->fh));
+
+	nfserr = nfsd_statfs(rqstp, &argp->fh, &resp->stats);
+	fh_put(&argp->fh);
+	return nfserr;
+}
+
+/*
+ * NFSv2 Server procedures.
+ * Only the results of non-idempotent operations are cached.
+ */
+#define nfsd_proc_none		NULL
+#define nfssvc_release_none	NULL
+struct nfsd_void { int dummy; };
+
+#define PROC(name, argt, rest, relt, cache, respsize)	\
+ { (svc_procfunc) nfsd_proc_##name,		\
+   (kxdrproc_t) nfssvc_decode_##argt,		\
+   (kxdrproc_t) nfssvc_encode_##rest,		\
+   (kxdrproc_t) nfssvc_release_##relt,		\
+   sizeof(struct nfsd_##argt),			\
+   sizeof(struct nfsd_##rest),			\
+   0,						\
+   cache,					\
+   respsize,				       	\
+ }
+
+#define ST 1		/* status */
+#define FH 8		/* filehandle */
+#define	AT 18		/* attributes */
+
+struct svc_procedure		nfsd_procedures2[18] = {
+  PROC(null,	 void,		void,		none,		RC_NOCACHE, ST),
+  PROC(getattr,	 fhandle,	attrstat,	fhandle,	RC_NOCACHE, ST+AT),
+  PROC(setattr,  sattrargs,	attrstat,	fhandle,	RC_REPLBUFF, ST+AT),
+  PROC(none,	 void,		void,		none,		RC_NOCACHE, ST),
+  PROC(lookup,	 diropargs,	diropres,	fhandle,	RC_NOCACHE, ST+FH+AT),
+  PROC(readlink, fhandle,	readlinkres,	none,		RC_NOCACHE, ST+1+NFS_MAXPATHLEN/4),
+  PROC(read,	 readargs,	readres,	fhandle,	RC_NOCACHE, ST+AT+1+NFSSVC_MAXBLKSIZE),
+  PROC(none,	 void,		void,		none,		RC_NOCACHE, ST),
+  PROC(write,	 writeargs,	attrstat,	fhandle,	RC_REPLBUFF, ST+AT),
+  PROC(create,	 createargs,	diropres,	fhandle,	RC_REPLBUFF, ST+FH+AT),
+  PROC(remove,	 diropargs,	void,		none,		RC_REPLSTAT, ST),
+  PROC(rename,	 renameargs,	void,		none,		RC_REPLSTAT, ST),
+  PROC(link,	 linkargs,	void,		none,		RC_REPLSTAT, ST),
+  PROC(symlink,	 symlinkargs,	void,		none,		RC_REPLSTAT, ST),
+  PROC(mkdir,	 createargs,	diropres,	fhandle,	RC_REPLBUFF, ST+FH+AT),
+  PROC(rmdir,	 diropargs,	void,		none,		RC_REPLSTAT, ST),
+  PROC(readdir,	 readdirargs,	readdirres,	none,		RC_REPLBUFF, 0),
+  PROC(statfs,	 fhandle,	statfsres,	none,		RC_NOCACHE, ST+5),
+};
+
+
+/*
+ * Map errnos to NFS errnos.
+ */
+int
+nfserrno (int errno)
+{
+	static struct {
+		int	nfserr;
+		int	syserr;
+	} nfs_errtbl[] = {
+		{ nfs_ok, 0 },
+		{ nfserr_perm, -EPERM },
+		{ nfserr_noent, -ENOENT },
+		{ nfserr_io, -EIO },
+		{ nfserr_nxio, -ENXIO },
+		{ nfserr_acces, -EACCES },
+		{ nfserr_exist, -EEXIST },
+		{ nfserr_xdev, -EXDEV },
+		{ nfserr_mlink, -EMLINK },
+		{ nfserr_nodev, -ENODEV },
+		{ nfserr_notdir, -ENOTDIR },
+		{ nfserr_isdir, -EISDIR },
+		{ nfserr_inval, -EINVAL },
+		{ nfserr_fbig, -EFBIG },
+		{ nfserr_nospc, -ENOSPC },
+		{ nfserr_rofs, -EROFS },
+		{ nfserr_mlink, -EMLINK },
+		{ nfserr_nametoolong, -ENAMETOOLONG },
+		{ nfserr_notempty, -ENOTEMPTY },
+#ifdef EDQUOT
+		{ nfserr_dquot, -EDQUOT },
+#endif
+		{ nfserr_stale, -ESTALE },
+		{ nfserr_dropit, -ENOMEM },
+		{ -1, -EIO }
+	};
+	int	i;
+
+	for (i = 0; nfs_errtbl[i].nfserr != -1; i++) {
+		if (nfs_errtbl[i].syserr == errno)
+			return nfs_errtbl[i].nfserr;
+	}
+	printk (KERN_INFO "nfsd: non-standard errno: %d\n", errno);
+	return nfserr_io;
+}
+
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
new file mode 100644
index 00000000000000..6d48dd27754b66
--- /dev/null
+++ b/fs/nfsd/nfssvc.c
@@ -0,0 +1,342 @@
+/*
+ * linux/fs/nfsd/nfssvc.c
+ *
+ * Central processing for nfsd.
+ *
+ * Authors:	Olaf Kirch (okir@monad.swb.de)
+ *
+ * Copyright (C) 1995, 1996, 1997 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#define __NO_VERSION__
+#include <linux/config.h>
+#include <linux/module.h>
+
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/nfs.h>
+#include <linux/in.h>
+#include <linux/uio.h>
+#include <linux/version.h>
+#include <linux/unistd.h>
+#include <linux/slab.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+
+#include <linux/sunrpc/types.h>
+#include <linux/sunrpc/stats.h>
+#include <linux/sunrpc/svc.h>
+#include <linux/sunrpc/svcsock.h>
+#include <linux/nfsd/nfsd.h>
+#include <linux/nfsd/stats.h>
+#include <linux/nfsd/cache.h>
+#include <linux/nfsd/xdr.h>
+#include <linux/lockd/bind.h>
+
+#define NFSDDBG_FACILITY	NFSDDBG_SVC
+#define NFSD_BUFSIZE		(1024 + NFSSVC_MAXBLKSIZE)
+
+/* these signals will be delivered to an nfsd thread 
+ * when handling a request
+ */
+#define ALLOWED_SIGS	(sigmask(SIGKILL))
+/* these signals will be delivered to an nfsd thread
+ * when not handling a request. i.e. when waiting
+ */
+#define SHUTDOWN_SIGS	(sigmask(SIGKILL) | sigmask(SIGHUP) | sigmask(SIGINT) | sigmask(SIGQUIT))
+/* if the last thread dies with SIGHUP, then the exports table is
+ * left unchanged ( like 2.4-{0-9} ).  Any other signal will clear
+ * the exports table (like 2.2).
+ */
+#define	SIG_NOCLEAN	SIGHUP
+
+extern struct svc_program	nfsd_program;
+static void			nfsd(struct svc_rqst *rqstp);
+struct timeval			nfssvc_boot;
+static struct svc_serv 		*nfsd_serv;
+static int			nfsd_busy;
+static unsigned long		nfsd_last_call;
+
+struct nfsd_list {
+	struct list_head 	list;
+	struct task_struct	*task;
+};
+struct list_head nfsd_list = LIST_HEAD_INIT(nfsd_list);
+
+/*
+ * Maximum number of nfsd processes
+ */
+#define	NFSD_MAXSERVS		8192
+
+int
+nfsd_svc(unsigned short port, int nrservs)
+{
+	int	error;
+	int	none_left;	
+	struct list_head *victim;
+
+	dprintk("nfsd: creating service\n");
+	error = -EINVAL;
+	if (nrservs <= 0)
+		nrservs = 0;
+	if (nrservs > NFSD_MAXSERVS)
+		nrservs = NFSD_MAXSERVS;
+	
+	/* Readahead param cache - will no-op if it already exists */
+	error =	nfsd_racache_init(2*nrservs);
+	if (error<0)
+		goto out;
+	if (!nfsd_serv) {
+		error = -ENOMEM;
+		nfsd_serv = svc_create(&nfsd_program, NFSD_BUFSIZE, NFSSVC_XDRSIZE);
+		if (nfsd_serv == NULL)
+			goto out;
+		error = svc_makesock(nfsd_serv, IPPROTO_UDP, port);
+		if (error < 0)
+			goto failure;
+
+#if CONFIG_NFSD_TCP
+		error = svc_makesock(nfsd_serv, IPPROTO_TCP, port);
+		if (error < 0)
+			goto failure;
+#endif
+		do_gettimeofday(&nfssvc_boot);		/* record boot time */
+	} else
+		nfsd_serv->sv_nrthreads++;
+	nrservs -= (nfsd_serv->sv_nrthreads-1);
+	while (nrservs > 0) {
+		nrservs--;
+		error = svc_create_thread(nfsd, nfsd_serv);
+		if (error < 0)
+			break;
+	}
+	victim = nfsd_list.next;
+	while (nrservs < 0 && victim != &nfsd_list) {
+		struct nfsd_list *nl =
+			list_entry(victim,struct nfsd_list, list);
+		victim = victim->next;
+		send_sig(SIG_NOCLEAN, nl->task, 1);
+		nrservs++;
+	}
+ failure:
+	none_left = (nfsd_serv->sv_nrthreads == 1);
+	svc_destroy(nfsd_serv);		/* Release server */
+	if (none_left) {
+		nfsd_serv = NULL;
+		nfsd_racache_shutdown();
+	}
+ out:
+	return error;
+}
+
+static inline void
+update_thread_usage(int busy_threads)
+{
+	unsigned long prev_call;
+	unsigned long diff;
+	int decile;
+
+	prev_call = nfsd_last_call;
+	nfsd_last_call = jiffies;
+	decile = busy_threads*10/nfsdstats.th_cnt;
+	if (decile>0 && decile <= 10) {
+		diff = nfsd_last_call - prev_call;
+		if ( (nfsdstats.th_usage[decile-1] += diff) >= NFSD_USAGE_WRAP)
+			nfsdstats.th_usage[decile-1] -= NFSD_USAGE_WRAP;
+		if (decile == 10)
+			nfsdstats.th_fullcnt++;
+	}
+}
+
+/*
+ * This is the NFS server kernel thread
+ */
+static void
+nfsd(struct svc_rqst *rqstp)
+{
+	struct svc_serv	*serv = rqstp->rq_server;
+	int		err;
+	struct nfsd_list me;
+
+	/* Lock module and set up kernel thread */
+	MOD_INC_USE_COUNT;
+	lock_kernel();
+	daemonize();
+	sprintf(current->comm, "nfsd");
+	current->rlim[RLIMIT_FSIZE].rlim_cur = RLIM_INFINITY;
+
+	nfsdstats.th_cnt++;
+	/* Let svc_process check client's authentication. */
+	rqstp->rq_auth = 1;
+
+	lockd_up();				/* start lockd */
+
+	me.task = current;
+	list_add(&me.list, &nfsd_list);
+
+	/*
+	 * The main request loop
+	 */
+	for (;;) {
+		/* Block all but the shutdown signals */
+		spin_lock_irq(&current->sigmask_lock);
+		siginitsetinv(&current->blocked, SHUTDOWN_SIGS);
+		recalc_sigpending(current);
+		spin_unlock_irq(&current->sigmask_lock);
+
+		/*
+		 * Find a socket with data available and call its
+		 * recvfrom routine.
+		 */
+		while ((err = svc_recv(serv, rqstp,
+				       5*60*HZ)) == -EAGAIN)
+		    ;
+		if (err < 0)
+			break;
+		update_thread_usage(nfsd_busy);
+		nfsd_busy++;
+
+		/* Lock the export hash tables for reading. */
+		exp_readlock();
+
+		/* Validate the client's address. This will also defeat
+		 * port probes on port 2049 by unauthorized clients.
+		 */
+		rqstp->rq_client = exp_getclient(&rqstp->rq_addr);
+		/* Process request with signals blocked.  */
+		spin_lock_irq(&current->sigmask_lock);
+		siginitsetinv(&current->blocked, ALLOWED_SIGS);
+		recalc_sigpending(current);
+		spin_unlock_irq(&current->sigmask_lock);
+
+		svc_process(serv, rqstp);
+
+		/* Unlock export hash tables */
+		exp_unlock();
+		update_thread_usage(nfsd_busy);
+		nfsd_busy--;
+	}
+
+	if (err != -EINTR) {
+		printk(KERN_WARNING "nfsd: terminating on error %d\n", -err);
+	} else {
+		unsigned int	signo;
+
+		for (signo = 1; signo <= _NSIG; signo++)
+			if (sigismember(&current->pending.signal, signo) &&
+			    !sigismember(&current->blocked, signo))
+				break;
+		err = signo;
+	}
+
+	/* Release lockd */
+	lockd_down();
+
+	/* Check if this is last thread */
+	if (serv->sv_nrthreads==1) {
+		
+		printk(KERN_WARNING "nfsd: last server has exited\n");
+		if (err != SIG_NOCLEAN) {
+			printk(KERN_WARNING "nfsd: unexporting all filesystems\n");
+			nfsd_export_shutdown();
+		}
+		nfsd_serv = NULL;
+	        nfsd_racache_shutdown();	/* release read-ahead cache */
+	}
+	list_del(&me.list);
+	nfsdstats.th_cnt --;
+
+	/* Release the thread */
+	svc_exit_thread(rqstp);
+
+	/* Release module */
+	MOD_DEC_USE_COUNT;
+}
+
+static int
+nfsd_dispatch(struct svc_rqst *rqstp, u32 *statp)
+{
+	struct svc_procedure	*proc;
+	kxdrproc_t		xdr;
+	u32			nfserr;
+
+	dprintk("nfsd_dispatch: vers %d proc %d\n",
+				rqstp->rq_vers, rqstp->rq_proc);
+	proc = rqstp->rq_procinfo;
+
+	/* Check whether we have this call in the cache. */
+	switch (nfsd_cache_lookup(rqstp, proc->pc_cachetype)) {
+	case RC_INTR:
+	case RC_DROPIT:
+		return 0;
+	case RC_REPLY:
+		return 1;
+	case RC_DOIT:;
+		/* do it */
+	}
+
+	/* Decode arguments */
+	xdr = proc->pc_decode;
+	if (xdr && !xdr(rqstp, rqstp->rq_argbuf.buf, rqstp->rq_argp)) {
+		dprintk("nfsd: failed to decode arguments!\n");
+		nfsd_cache_update(rqstp, RC_NOCACHE, NULL);
+		*statp = rpc_garbage_args;
+		return 1;
+	}
+
+	/* Now call the procedure handler, and encode NFS status. */
+	nfserr = proc->pc_func(rqstp, rqstp->rq_argp, rqstp->rq_resp);
+	if (nfserr == nfserr_dropit) {
+		dprintk("nfsd: Dropping request due to malloc failure!\n");
+		nfsd_cache_update(rqstp, RC_NOCACHE, NULL);
+		return 0;
+	}
+		
+	if (rqstp->rq_proc != 0)
+		svc_putlong(&rqstp->rq_resbuf, nfserr);
+
+	/* Encode result.
+	 * For NFSv2, additional info is never returned in case of an error.
+	 */
+	if (!(nfserr && rqstp->rq_vers == 2)) {
+		xdr = proc->pc_encode;
+		if (xdr && !xdr(rqstp, rqstp->rq_resbuf.buf, rqstp->rq_resp)) {
+			/* Failed to encode result. Release cache entry */
+			dprintk("nfsd: failed to encode result!\n");
+			nfsd_cache_update(rqstp, RC_NOCACHE, NULL);
+			*statp = rpc_system_err;
+			return 1;
+		}
+	}
+
+	/* Store reply in cache. */
+	nfsd_cache_update(rqstp, proc->pc_cachetype, statp + 1);
+	return 1;
+}
+
+static struct svc_version	nfsd_version2 = {
+	2, 18, nfsd_procedures2, nfsd_dispatch
+};
+#ifdef CONFIG_NFSD_V3
+static struct svc_version	nfsd_version3 = {
+	3, 22, nfsd_procedures3, nfsd_dispatch
+};
+#endif
+static struct svc_version *	nfsd_version[] = {
+	NULL,
+	NULL,
+	&nfsd_version2,
+#ifdef CONFIG_NFSD_V3
+	&nfsd_version3,
+#endif
+};
+
+#define NFSD_NRVERS		(sizeof(nfsd_version)/sizeof(nfsd_version[0]))
+struct svc_program		nfsd_program = {
+	NFS_PROGRAM,		/* program number */
+	2, NFSD_NRVERS-1,	/* version range */
+	NFSD_NRVERS,		/* nr of entries in nfsd_version */
+	nfsd_version,		/* version table */
+	"nfsd",			/* program name */
+	&nfsd_svcstats,		/* version table */
+};
diff --git a/fs/nfsd/nfsxdr.c b/fs/nfsd/nfsxdr.c
new file mode 100644
index 00000000000000..b5e9a2aee8fe69
--- /dev/null
+++ b/fs/nfsd/nfsxdr.c
@@ -0,0 +1,451 @@
+/*
+ * linux/fs/nfsd/xdr.c
+ *
+ * XDR support for nfsd
+ *
+ * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/nfs.h>
+
+#include <linux/sunrpc/xdr.h>
+#include <linux/sunrpc/svc.h>
+#include <linux/nfsd/nfsd.h>
+#include <linux/nfsd/xdr.h>
+
+#define NFSDDBG_FACILITY		NFSDDBG_XDR
+
+
+#ifdef NFSD_OPTIMIZE_SPACE
+# define inline
+#endif
+
+/*
+ * Mapping of S_IF* types to NFS file types
+ */
+static u32	nfs_ftypes[] = {
+	NFNON,  NFCHR,  NFCHR, NFBAD,
+	NFDIR,  NFBAD,  NFBLK, NFBAD,
+	NFREG,  NFBAD,  NFLNK, NFBAD,
+	NFSOCK, NFBAD,  NFLNK, NFBAD,
+};
+
+
+/*
+ * XDR functions for basic NFS types
+ */
+static inline u32 *
+decode_fh(u32 *p, struct svc_fh *fhp)
+{
+	fh_init(fhp, NFS_FHSIZE);
+	memcpy(&fhp->fh_handle.fh_base, p, NFS_FHSIZE);
+	fhp->fh_handle.fh_size = NFS_FHSIZE;
+
+	/* FIXME: Look up export pointer here and verify
+	 * Sun Secure RPC if requested */
+	return p + (NFS_FHSIZE >> 2);
+}
+
+static inline u32 *
+encode_fh(u32 *p, struct svc_fh *fhp)
+{
+	memcpy(p, &fhp->fh_handle.fh_base, NFS_FHSIZE);
+	return p + (NFS_FHSIZE>> 2);
+}
+
+/*
+ * Decode a file name and make sure that the path contains
+ * no slashes or null bytes.
+ */
+static inline u32 *
+decode_filename(u32 *p, char **namp, int *lenp)
+{
+	char		*name;
+	int		i;
+
+	if ((p = xdr_decode_string_inplace(p, namp, lenp, NFS_MAXNAMLEN)) != NULL) {
+		for (i = 0, name = *namp; i < *lenp; i++, name++) {
+			if (*name == '\0' || *name == '/')
+				return NULL;
+		}
+	}
+
+	return p;
+}
+
+static inline u32 *
+decode_pathname(u32 *p, char **namp, int *lenp)
+{
+	char		*name;
+	int		i;
+
+	if ((p = xdr_decode_string(p, namp, lenp, NFS_MAXPATHLEN)) != NULL) {
+		for (i = 0, name = *namp; i < *lenp; i++, name++) {
+			if (*name == '\0')
+				return NULL;
+		}
+	}
+
+	return p;
+}
+
+static inline u32 *
+decode_sattr(u32 *p, struct iattr *iap)
+{
+	u32	tmp, tmp1;
+
+	iap->ia_valid = 0;
+
+	/* Sun client bug compatibility check: some sun clients seem to
+	 * put 0xffff in the mode field when they mean 0xffffffff.
+	 * Quoting the 4.4BSD nfs server code: Nah nah nah nah na nah.
+	 */
+	if ((tmp = ntohl(*p++)) != (u32)-1 && tmp != 0xffff) {
+		iap->ia_valid |= ATTR_MODE;
+		iap->ia_mode = tmp;
+	}
+	if ((tmp = ntohl(*p++)) != (u32)-1) {
+		iap->ia_valid |= ATTR_UID;
+		iap->ia_uid = tmp;
+	}
+	if ((tmp = ntohl(*p++)) != (u32)-1) {
+		iap->ia_valid |= ATTR_GID;
+		iap->ia_gid = tmp;
+	}
+	if ((tmp = ntohl(*p++)) != (u32)-1) {
+		iap->ia_valid |= ATTR_SIZE;
+		iap->ia_size = tmp;
+	}
+	tmp  = ntohl(*p++); tmp1 = ntohl(*p++);
+	if (tmp != (u32)-1 && tmp1 != (u32)-1) {
+		iap->ia_valid |= ATTR_ATIME | ATTR_ATIME_SET;
+		iap->ia_atime = tmp;
+	}
+	tmp  = ntohl(*p++); tmp1 = ntohl(*p++);
+	if (tmp != (u32)-1 && tmp1 != (u32)-1) {
+		iap->ia_valid |= ATTR_MTIME | ATTR_MTIME_SET;
+		iap->ia_mtime = tmp;
+		/*
+		 * Passing the invalid value useconds=1000000 for mtime
+		 * is a Sun convention for "set both mtime and atime to
+		 * current server time".  It's needed to make permissions
+		 * checks for the "touch" program across v2 mounts to
+		 * Solaris and Irix boxes work correctly. See description of
+		 * sattr in section 6.1 of "NFS Illustrated" by
+		 * Brent Callaghan, Addison-Wesley, ISBN 0-201-32750-5
+		 */
+		if (tmp1 == 1000000)
+			iap->ia_valid &= ~(ATTR_ATIME_SET|ATTR_MTIME_SET);
+	}
+	return p;
+}
+
+static inline u32 *
+encode_fattr(struct svc_rqst *rqstp, u32 *p, struct svc_fh *fhp)
+{
+	struct inode *inode = fhp->fh_dentry->d_inode;
+	int type = (inode->i_mode & S_IFMT);
+
+	*p++ = htonl(nfs_ftypes[type >> 12]);
+	*p++ = htonl((u32) inode->i_mode);
+	*p++ = htonl((u32) inode->i_nlink);
+	*p++ = htonl((u32) nfsd_ruid(rqstp, inode->i_uid));
+	*p++ = htonl((u32) nfsd_rgid(rqstp, inode->i_gid));
+
+	if (S_ISLNK(type) && inode->i_size > NFS_MAXPATHLEN) {
+		*p++ = htonl(NFS_MAXPATHLEN);
+	} else {
+		*p++ = htonl((u32) inode->i_size);
+	}
+	*p++ = htonl((u32) inode->i_blksize);
+	if (S_ISCHR(type) || S_ISBLK(type))
+		*p++ = htonl((u32) inode->i_rdev);
+	else
+		*p++ = htonl(0xffffffff);
+	*p++ = htonl((u32) inode->i_blocks);
+	if (rqstp->rq_reffh->fh_version == 1 
+	    && rqstp->rq_reffh->fh_fsid_type == 1
+	    && (fhp->fh_export->ex_flags & NFSEXP_FSID))
+		*p++ = htonl((u32) fhp->fh_export->ex_fsid);
+	else
+		*p++ = htonl((u32) inode->i_dev);
+	*p++ = htonl((u32) inode->i_ino);
+	*p++ = htonl((u32) inode->i_atime);
+	*p++ = 0;
+	*p++ = htonl((u32) lease_get_mtime(inode));
+	*p++ = 0;
+	*p++ = htonl((u32) inode->i_ctime);
+	*p++ = 0;
+
+	return p;
+}
+
+/*
+ * Check buffer bounds after decoding arguments
+ */
+static inline int
+xdr_argsize_check(struct svc_rqst *rqstp, u32 *p)
+{
+	struct svc_buf	*buf = &rqstp->rq_argbuf;
+
+	return p - buf->base <= buf->buflen;
+}
+
+static inline int
+xdr_ressize_check(struct svc_rqst *rqstp, u32 *p)
+{
+	struct svc_buf	*buf = &rqstp->rq_resbuf;
+
+	buf->len = p - buf->base;
+	dprintk("nfsd: ressize_check p %p base %p len %d\n",
+			p, buf->base, buf->buflen);
+	return (buf->len <= buf->buflen);
+}
+
+/*
+ * XDR decode functions
+ */
+int
+nfssvc_decode_void(struct svc_rqst *rqstp, u32 *p, void *dummy)
+{
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nfssvc_decode_fhandle(struct svc_rqst *rqstp, u32 *p, struct svc_fh *fhp)
+{
+	if (!(p = decode_fh(p, fhp)))
+		return 0;
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nfssvc_decode_sattrargs(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd_sattrargs *args)
+{
+	if (!(p = decode_fh(p, &args->fh))
+	 || !(p = decode_sattr(p, &args->attrs)))
+		return 0;
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nfssvc_decode_diropargs(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd_diropargs *args)
+{
+	if (!(p = decode_fh(p, &args->fh))
+	 || !(p = decode_filename(p, &args->name, &args->len)))
+		return 0;
+
+	 return xdr_argsize_check(rqstp, p);
+}
+
+int
+nfssvc_decode_readargs(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd_readargs *args)
+{
+	if (!(p = decode_fh(p, &args->fh)))
+		return 0;
+
+	args->offset    = ntohl(*p++);
+	args->count     = ntohl(*p++);
+	args->totalsize = ntohl(*p++);
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nfssvc_decode_writeargs(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd_writeargs *args)
+{
+	if (!(p = decode_fh(p, &args->fh)))
+		return 0;
+
+	p++;				/* beginoffset */
+	args->offset = ntohl(*p++);	/* offset */
+	p++;				/* totalcount */
+	args->len = ntohl(*p++);
+	args->data = (char *) p;
+	p += XDR_QUADLEN(args->len);
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nfssvc_decode_createargs(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd_createargs *args)
+{
+	if (!(p = decode_fh(p, &args->fh))
+	 || !(p = decode_filename(p, &args->name, &args->len))
+	 || !(p = decode_sattr(p, &args->attrs)))
+		return 0;
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nfssvc_decode_renameargs(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd_renameargs *args)
+{
+	if (!(p = decode_fh(p, &args->ffh))
+	 || !(p = decode_filename(p, &args->fname, &args->flen))
+	 || !(p = decode_fh(p, &args->tfh))
+	 || !(p = decode_filename(p, &args->tname, &args->tlen)))
+		return 0;
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nfssvc_decode_linkargs(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd_linkargs *args)
+{
+	if (!(p = decode_fh(p, &args->ffh))
+	 || !(p = decode_fh(p, &args->tfh))
+	 || !(p = decode_filename(p, &args->tname, &args->tlen)))
+		return 0;
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nfssvc_decode_symlinkargs(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd_symlinkargs *args)
+{
+	if (!(p = decode_fh(p, &args->ffh))
+	 || !(p = decode_filename(p, &args->fname, &args->flen))
+	 || !(p = decode_pathname(p, &args->tname, &args->tlen))
+	 || !(p = decode_sattr(p, &args->attrs)))
+		return 0;
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+int
+nfssvc_decode_readdirargs(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd_readdirargs *args)
+{
+	if (!(p = decode_fh(p, &args->fh)))
+		return 0;
+	args->cookie = ntohl(*p++);
+	args->count  = ntohl(*p++);
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+/*
+ * XDR encode functions
+ */
+int
+nfssvc_encode_void(struct svc_rqst *rqstp, u32 *p, void *dummy)
+{
+	return xdr_ressize_check(rqstp, p);
+}
+
+int
+nfssvc_encode_attrstat(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd_attrstat *resp)
+{
+	p = encode_fattr(rqstp, p, &resp->fh);
+	return xdr_ressize_check(rqstp, p);
+}
+
+int
+nfssvc_encode_diropres(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd_diropres *resp)
+{
+	p = encode_fh(p, &resp->fh);
+	p = encode_fattr(rqstp, p, &resp->fh);
+	return xdr_ressize_check(rqstp, p);
+}
+
+int
+nfssvc_encode_readlinkres(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd_readlinkres *resp)
+{
+	*p++ = htonl(resp->len);
+	p += XDR_QUADLEN(resp->len);
+	return xdr_ressize_check(rqstp, p);
+}
+
+int
+nfssvc_encode_readres(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd_readres *resp)
+{
+	p = encode_fattr(rqstp, p, &resp->fh);
+	*p++ = htonl(resp->count);
+	p += XDR_QUADLEN(resp->count);
+
+	return xdr_ressize_check(rqstp, p);
+}
+
+int
+nfssvc_encode_readdirres(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd_readdirres *resp)
+{
+	p += XDR_QUADLEN(resp->count);
+	return xdr_ressize_check(rqstp, p);
+}
+
+int
+nfssvc_encode_statfsres(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd_statfsres *resp)
+{
+	struct statfs	*stat = &resp->stats;
+
+	*p++ = htonl(NFSSVC_MAXBLKSIZE);	/* max transfer size */
+	*p++ = htonl(stat->f_bsize);
+	*p++ = htonl(stat->f_blocks);
+	*p++ = htonl(stat->f_bfree);
+	*p++ = htonl(stat->f_bavail);
+	return xdr_ressize_check(rqstp, p);
+}
+
+int
+nfssvc_encode_entry(struct readdir_cd *cd, const char *name,
+		    int namlen, loff_t offset, ino_t ino, unsigned int d_type)
+{
+	u32	*p = cd->buffer;
+	int	buflen, slen;
+
+	/*
+	dprintk("nfsd: entry(%.*s off %ld ino %ld)\n",
+			namlen, name, offset, ino);
+	 */
+
+	if (offset > ~((u32) 0))
+		return -EINVAL;
+	if (cd->offset)
+		*cd->offset = htonl(offset);
+	if (namlen > NFS2_MAXNAMLEN)
+		namlen = NFS2_MAXNAMLEN;/* truncate filename */
+
+	slen = XDR_QUADLEN(namlen);
+	if ((buflen = cd->buflen - slen - 4) < 0) {
+		cd->eob = 1;
+		return -EINVAL;
+	}
+	*p++ = xdr_one;				/* mark entry present */
+	*p++ = htonl((u32) ino);		/* file id */
+	p    = xdr_encode_array(p, name, namlen);/* name length & name */
+	cd->offset = p;			/* remember pointer */
+	*p++ = ~(u32) 0;		/* offset of next entry */
+
+	cd->buflen = buflen;
+	cd->buffer = p;
+	return 0;
+}
+
+/*
+ * XDR release functions
+ */
+int
+nfssvc_release_fhandle(struct svc_rqst *rqstp, u32 *p,
+					struct nfsd_fhandle *resp)
+{
+	fh_put(&resp->fh);
+	return 1;
+}
diff --git a/fs/nfsd/stats.c b/fs/nfsd/stats.c
new file mode 100644
index 00000000000000..2bcffc4ee81102
--- /dev/null
+++ b/fs/nfsd/stats.c
@@ -0,0 +1,117 @@
+/*
+ * linux/fs/nfsd/stats.c
+ *
+ * procfs-based user access to knfsd statistics
+ *
+ * /proc/net/rpc/nfsd
+ *
+ * Format:
+ *	rc <hits> <misses> <nocache>
+ *			Statistsics for the reply cache
+ *	fh <stale> <total-lookups> <anonlookups> <dir-not-in-dcache> <nondir-not-in-dcache>
+ *			statistics for filehandle lookup
+ *	io <bytes-read> <bytes-writtten>
+ *			statistics for IO throughput
+ *	th <threads> <fullcnt> <10%-20%> <20%-30%> ... <90%-100%> <100%> 
+ *			time (seconds) when nfsd thread usage above thresholds
+ *			and number of times that all threads were in use
+ *	ra cache-size  <10%  <20%  <30% ... <100% not-found
+ *			number of times that read-ahead entry was found that deep in
+ *			the cache.
+ *	plus generic RPC stats (see net/sunrpc/stats.c)
+ *
+ * Copyright (C) 1995, 1996, 1997 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/proc_fs.h>
+#include <linux/stat.h>
+#define __NO_VERSION__
+#include <linux/module.h>
+
+#include <linux/sunrpc/svc.h>
+#include <linux/sunrpc/stats.h>
+#include <linux/nfsd/nfsd.h>
+#include <linux/nfsd/stats.h>
+
+struct nfsd_stats	nfsdstats;
+struct svc_stat		nfsd_svcstats = { &nfsd_program, };
+
+static int
+nfsd_proc_read(char *buffer, char **start, off_t offset, int count,
+				int *eof, void *data)
+{
+	int	len;
+	int	i;
+
+	len = sprintf(buffer, "rc %u %u %u\nfh %u %u %u %u %u\nio %u %u\n",
+		      nfsdstats.rchits,
+		      nfsdstats.rcmisses,
+		      nfsdstats.rcnocache,
+		      nfsdstats.fh_stale,
+		      nfsdstats.fh_lookup,
+		      nfsdstats.fh_anon,
+		      nfsdstats.fh_nocache_dir,
+		      nfsdstats.fh_nocache_nondir,
+		      nfsdstats.io_read,
+		      nfsdstats.io_write);
+	/* thread usage: */
+	len += sprintf(buffer+len, "th %u %u", nfsdstats.th_cnt, nfsdstats.th_fullcnt);
+	for (i=0; i<10; i++) {
+		unsigned int jifs = nfsdstats.th_usage[i];
+		unsigned int sec = jifs / HZ, msec = (jifs % HZ)*1000/HZ;
+		len += sprintf(buffer+len, " %u.%03u", sec, msec);
+	}
+
+	/* newline and ra-cache */
+	len += sprintf(buffer+len, "\nra %u", nfsdstats.ra_size);
+	for (i=0; i<11; i++)
+		len += sprintf(buffer+len, " %u", nfsdstats.ra_depth[i]);
+	len += sprintf(buffer+len, "\n");
+	
+
+	/* Assume we haven't hit EOF yet. Will be set by svc_proc_read. */
+	*eof = 0;
+
+	/*
+	 * Append generic nfsd RPC statistics if there's room for it.
+	 */
+	if (len <= offset) {
+		len = svc_proc_read(buffer, start, offset - len, count,
+				    eof, data);
+		return len;
+	}
+
+	if (len < count) {
+		len += svc_proc_read(buffer + len, start, 0, count - len,
+				     eof, data);
+	}
+
+	if (offset >= len) {
+		*start = buffer;
+		return 0;
+	}
+
+	*start = buffer + offset;
+	if ((len -= offset) > count)
+		return count;
+	return len;
+}
+
+void
+nfsd_stat_init(void)
+{
+	struct proc_dir_entry	*ent;
+
+	if ((ent = svc_proc_register(&nfsd_svcstats)) != 0) {
+		ent->read_proc = nfsd_proc_read;
+		ent->owner = THIS_MODULE;
+	}
+}
+
+void
+nfsd_stat_shutdown(void)
+{
+	svc_proc_unregister("nfsd");
+}
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
new file mode 100644
index 00000000000000..59d4b91e42eaf9
--- /dev/null
+++ b/fs/nfsd/vfs.c
@@ -0,0 +1,1615 @@
+#define MSNFS	/* HACK HACK */
+/*
+ * linux/fs/nfsd/vfs.c
+ *
+ * File operations used by nfsd. Some of these have been ripped from
+ * other parts of the kernel because they weren't in ksyms.c, others
+ * are partial duplicates with added or changed functionality.
+ *
+ * Note that several functions dget() the dentry upon which they want
+ * to act, most notably those that create directory entries. Response
+ * dentry's are dput()'d if necessary in the release callback.
+ * So if you notice code paths that apparently fail to dput() the
+ * dentry, don't worry--they have been taken care of.
+ *
+ * Copyright (C) 1995-1999 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#include <linux/config.h>
+#include <linux/version.h>
+#include <linux/string.h>
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <linux/fs.h>
+#include <linux/major.h>
+#include <linux/ext2_fs.h>
+#include <linux/proc_fs.h>
+#include <linux/stat.h>
+#include <linux/fcntl.h>
+#include <linux/net.h>
+#include <linux/unistd.h>
+#include <linux/slab.h>
+#include <linux/in.h>
+#define __NO_VERSION__
+#include <linux/module.h>
+
+#include <linux/sunrpc/svc.h>
+#include <linux/nfsd/nfsd.h>
+#ifdef CONFIG_NFSD_V3
+#include <linux/nfs3.h>
+#include <linux/nfsd/xdr3.h>
+#endif /* CONFIG_NFSD_V3 */
+#include <linux/nfsd/nfsfh.h>
+#include <linux/quotaops.h>
+
+#include <asm/uaccess.h>
+
+#define NFSDDBG_FACILITY		NFSDDBG_FILEOP
+#define NFSD_PARANOIA
+
+
+/* We must ignore files (but only files) which might have mandatory
+ * locks on them because there is no way to know if the accesser has
+ * the lock.
+ */
+#define IS_ISMNDLK(i)	(S_ISREG((i)->i_mode) && MANDATORY_LOCK(i))
+
+/*
+ * This is a cache of readahead params that help us choose the proper
+ * readahead strategy. Initially, we set all readahead parameters to 0
+ * and let the VFS handle things.
+ * If you increase the number of cached files very much, you'll need to
+ * add a hash table here.
+ */
+struct raparms {
+	struct raparms		*p_next;
+	unsigned int		p_count;
+	ino_t			p_ino;
+	dev_t			p_dev;
+	unsigned long		p_reada,
+				p_ramax,
+				p_raend,
+				p_ralen,
+				p_rawin;
+};
+
+static struct raparms *		raparml;
+static struct raparms *		raparm_cache;
+
+/*
+ * Look up one component of a pathname.
+ * N.B. After this call _both_ fhp and resfh need an fh_put
+ *
+ * If the lookup would cross a mountpoint, and the mounted filesystem
+ * is exported to the client with NFSEXP_NOHIDE, then the lookup is
+ * accepted as it stands and the mounted directory is
+ * returned. Otherwise the covered directory is returned.
+ * NOTE: this mountpoint crossing is not supported properly by all
+ *   clients and is explicitly disallowed for NFSv3
+ *      NeilBrown <neilb@cse.unsw.edu.au>
+ */
+int
+nfsd_lookup(struct svc_rqst *rqstp, struct svc_fh *fhp, const char *name,
+					int len, struct svc_fh *resfh)
+{
+	struct svc_export	*exp;
+	struct dentry		*dparent;
+	struct dentry		*dentry;
+	int			err;
+
+	dprintk("nfsd: nfsd_lookup(fh %s, %.*s)\n", SVCFH_fmt(fhp), len,name);
+
+	/* Obtain dentry and export. */
+	err = fh_verify(rqstp, fhp, S_IFDIR, MAY_EXEC);
+	if (err)
+		goto out;
+
+	dparent = fhp->fh_dentry;
+	exp  = fhp->fh_export;
+
+	err = nfserr_acces;
+
+	/* Lookup the name, but don't follow links */
+	if (isdotent(name, len)) {
+		if (len==1)
+			dentry = dget(dparent);
+		else if (dparent != exp->ex_dentry)
+			dentry = dget(dparent->d_parent);
+		else if (!EX_NOHIDE(exp))
+			dentry = dget(dparent); /* .. == . just like at / */
+		else {
+			/* checking mountpoint crossing is very different when stepping up */
+			struct svc_export *exp2 = NULL;
+			struct dentry *dp;
+			struct vfsmount *mnt = mntget(exp->ex_mnt);
+			dentry = dget(dparent);
+			while(follow_up(&mnt, &dentry))
+				;
+			dp = dget(dentry->d_parent);
+			dput(dentry);
+			dentry = dp;
+			for ( ; exp2 == NULL && dp->d_parent != dp;
+			      dp=dp->d_parent)
+				exp2 = exp_get(exp->ex_client, dp->d_inode->i_dev, dp->d_inode->i_ino);
+			if (exp2==NULL) {
+				dput(dentry);
+				dentry = dget(dparent);
+			} else {
+				exp = exp2;
+			}
+			mntput(mnt);
+		}
+	} else {
+		fh_lock(fhp);
+		dentry = lookup_one_len(name, dparent, len);
+		err = PTR_ERR(dentry);
+		if (IS_ERR(dentry))
+			goto out_nfserr;
+		/*
+		 * check if we have crossed a mount point ...
+		 */
+		if (d_mountpoint(dentry)) {
+			struct svc_export *exp2 = NULL;
+			struct vfsmount *mnt = mntget(exp->ex_mnt);
+			struct dentry *mounts = dget(dentry);
+			while (follow_down(&mnt,&mounts)&&d_mountpoint(mounts))
+				;
+			exp2 = exp_get(rqstp->rq_client,
+				       mounts->d_inode->i_dev,
+				       mounts->d_inode->i_ino);
+			if (exp2 && EX_NOHIDE(exp2)) {
+				/* successfully crossed mount point */
+				exp = exp2;
+				dput(dentry);
+				dentry = mounts;
+			} else
+				dput(mounts);
+			mntput(mnt);
+		}
+	}
+
+	if (dentry->d_inode && dentry->d_inode->i_op &&
+	    dentry->d_inode->i_op->revalidate &&
+	    dentry->d_inode->i_op->revalidate(dentry))
+		err = nfserr_noent;
+	else
+		err = fh_compose(resfh, exp, dentry, fhp);
+	if (!err && !dentry->d_inode)
+		err = nfserr_noent;
+out:
+	return err;
+
+out_nfserr:
+	err = nfserrno(err);
+	goto out;
+}
+
+/*
+ * Set various file attributes.
+ * N.B. After this call fhp needs an fh_put
+ */
+int
+nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap,
+	     int check_guard, time_t guardtime)
+{
+	struct dentry	*dentry;
+	struct inode	*inode;
+	int		accmode = MAY_SATTR;
+	int		ftype = 0;
+	int		imode;
+	int		err;
+	int		size_change = 0;
+
+	if (iap->ia_valid & (ATTR_ATIME | ATTR_MTIME | ATTR_SIZE))
+		accmode |= MAY_WRITE|MAY_OWNER_OVERRIDE;
+	if (iap->ia_valid & ATTR_SIZE)
+		ftype = S_IFREG;
+
+	/* Get inode */
+	err = fh_verify(rqstp, fhp, ftype, accmode);
+	if (err || !iap->ia_valid)
+		goto out;
+
+	dentry = fhp->fh_dentry;
+	inode = dentry->d_inode;
+
+	/* NFSv2 does not differentiate between "set-[ac]time-to-now"
+	 * which only requires access, and "set-[ac]time-to-X" which
+	 * requires ownership.
+	 * So if it looks like it might be "set both to the same time which
+	 * is close to now", and if inode_change_ok fails, then we
+	 * convert to "set to now" instead of "set to explicit time"
+	 *
+	 * We only call inode_change_ok as the last test as technically
+	 * it is not an interface that we should be using.  It is only
+	 * valid if the filesystem does not define it's own i_op->setattr.
+	 */
+#define BOTH_TIME_SET (ATTR_ATIME_SET | ATTR_MTIME_SET)
+#define	MAX_TOUCH_TIME_ERROR (30*60)
+	if ((iap->ia_valid & BOTH_TIME_SET) == BOTH_TIME_SET
+	    && iap->ia_mtime == iap->ia_atime
+	    ) {
+	    /* Looks probable.  Now just make sure time is in the right ballpark.
+	     * Solaris, at least, doesn't seem to care what the time request is.
+	     * We require it be within 30 minutes of now.
+	     */
+	    time_t delta = iap->ia_atime - CURRENT_TIME;
+	    if (delta<0) delta = -delta;
+	    if (delta < MAX_TOUCH_TIME_ERROR &&
+		inode_change_ok(inode, iap) != 0) {
+		/* turn off ATTR_[AM]TIME_SET but leave ATTR_[AM]TIME
+		 * this will cause notify_change to set these times to "now"
+		 */
+		iap->ia_valid &= ~BOTH_TIME_SET;
+	    }
+	}
+	    
+	/* The size case is special. It changes the file as well as the attributes.  */
+	if (iap->ia_valid & ATTR_SIZE) {
+		if (iap->ia_size < inode->i_size) {
+			err = nfsd_permission(fhp->fh_export, dentry, MAY_TRUNC|MAY_OWNER_OVERRIDE);
+			if (err)
+				goto out;
+		}
+
+		/*
+		 * If we are changing the size of the file, then
+		 * we need to break all leases.
+		 */
+		err = get_lease(inode, FMODE_WRITE);
+		if (err)
+			goto out_nfserr;
+
+		err = get_write_access(inode);
+		if (err)
+			goto out_nfserr;
+
+		err = locks_verify_truncate(inode, NULL, iap->ia_size);
+		if (err) {
+			put_write_access(inode);
+			goto out_nfserr;
+		}
+		DQUOT_INIT(inode);
+	}
+
+	imode = inode->i_mode;
+	if (iap->ia_valid & ATTR_MODE) {
+		iap->ia_mode &= S_IALLUGO;
+		imode = iap->ia_mode |= (imode & ~S_IALLUGO);
+	}
+
+	/* Revoke setuid/setgid bit on chown/chgrp */
+	if ((iap->ia_valid & ATTR_UID) && (imode & S_ISUID)
+	 && iap->ia_uid != inode->i_uid) {
+		iap->ia_valid |= ATTR_MODE;
+		iap->ia_mode = imode &= ~S_ISUID;
+	}
+	if ((iap->ia_valid & ATTR_GID) && (imode & S_ISGID)
+	 && iap->ia_gid != inode->i_gid) {
+		iap->ia_valid |= ATTR_MODE;
+		iap->ia_mode = imode &= ~S_ISGID;
+	}
+
+	/* Change the attributes. */
+
+
+	iap->ia_valid |= ATTR_CTIME;
+
+	if (iap->ia_valid & ATTR_SIZE) {
+		fh_lock(fhp);
+		size_change = 1;
+	}
+	err = nfserr_notsync;
+	if (!check_guard || guardtime == inode->i_ctime) {
+		err = notify_change(dentry, iap);
+		err = nfserrno(err);
+	}
+	if (size_change) {
+		fh_unlock(fhp);
+		put_write_access(inode);
+	}
+	if (!err)
+		if (EX_ISSYNC(fhp->fh_export))
+			write_inode_now(inode, 1);
+out:
+	return err;
+
+out_nfserr:
+	err = nfserrno(err);
+	goto out;
+}
+
+#ifdef CONFIG_NFSD_V3
+/*
+ * Check server access rights to a file system object
+ */
+struct accessmap {
+	u32		access;
+	int		how;
+};
+static struct accessmap	nfs3_regaccess[] = {
+    {	NFS3_ACCESS_READ,	MAY_READ			},
+    {	NFS3_ACCESS_EXECUTE,	MAY_EXEC			},
+    {	NFS3_ACCESS_MODIFY,	MAY_WRITE|MAY_TRUNC		},
+    {	NFS3_ACCESS_EXTEND,	MAY_WRITE			},
+
+    {	0,			0				}
+};
+
+static struct accessmap	nfs3_diraccess[] = {
+    {	NFS3_ACCESS_READ,	MAY_READ			},
+    {	NFS3_ACCESS_LOOKUP,	MAY_EXEC			},
+    {	NFS3_ACCESS_MODIFY,	MAY_EXEC|MAY_WRITE|MAY_TRUNC	},
+    {	NFS3_ACCESS_EXTEND,	MAY_EXEC|MAY_WRITE		},
+    {	NFS3_ACCESS_DELETE,	MAY_REMOVE			},
+
+    {	0,			0				}
+};
+
+static struct accessmap	nfs3_anyaccess[] = {
+	/* Some clients - Solaris 2.6 at least, make an access call
+	 * to the server to check for access for things like /dev/null
+	 * (which really, the server doesn't care about).  So
+	 * We provide simple access checking for them, looking
+	 * mainly at mode bits
+	 */
+    {	NFS3_ACCESS_READ,	MAY_READ			},
+    {	NFS3_ACCESS_EXECUTE,	MAY_EXEC			},
+    {	NFS3_ACCESS_MODIFY,	MAY_WRITE			},
+    {	NFS3_ACCESS_EXTEND,	MAY_WRITE			},
+
+    {	0,			0				}
+};
+
+int
+nfsd_access(struct svc_rqst *rqstp, struct svc_fh *fhp, u32 *access)
+{
+	struct accessmap	*map;
+	struct svc_export	*export;
+	struct dentry		*dentry;
+	u32			query, result = 0;
+	unsigned int		error;
+
+	error = fh_verify(rqstp, fhp, 0, MAY_NOP);
+	if (error)
+		goto out;
+
+	export = fhp->fh_export;
+	dentry = fhp->fh_dentry;
+
+	if (S_ISREG(dentry->d_inode->i_mode))
+		map = nfs3_regaccess;
+	else if (S_ISDIR(dentry->d_inode->i_mode))
+		map = nfs3_diraccess;
+	else
+		map = nfs3_anyaccess;
+
+
+	query = *access;
+	for  (; map->access; map++) {
+		if (map->access & query) {
+			unsigned int err2;
+			err2 = nfsd_permission(export, dentry, map->how);
+			switch (err2) {
+			case nfs_ok:
+				result |= map->access;
+				break;
+				
+			/* the following error codes just mean the access was not allowed,
+			 * rather than an error occurred */
+			case nfserr_rofs:
+			case nfserr_acces:
+			case nfserr_perm:
+				/* simply don't "or" in the access bit. */
+				break;
+			default:
+				error = err2;
+				goto out;
+			}
+		}
+	}
+	*access = result;
+
+ out:
+	return error;
+}
+#endif /* CONFIG_NFSD_V3 */
+
+
+
+/*
+ * Open an existing file or directory.
+ * The access argument indicates the type of open (read/write/lock)
+ * N.B. After this call fhp needs an fh_put
+ */
+int
+nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, int type,
+			int access, struct file *filp)
+{
+	struct dentry	*dentry;
+	struct inode	*inode;
+	int		err;
+
+	/* If we get here, then the client has already done an "open", and (hopefully)
+	 * checked permission - so allow OWNER_OVERRIDE in case a chmod has now revoked
+	 * permission */
+	err = fh_verify(rqstp, fhp, type, access | MAY_OWNER_OVERRIDE);
+	if (err)
+		goto out;
+
+	dentry = fhp->fh_dentry;
+	inode = dentry->d_inode;
+
+	/* Disallow access to files with the append-only bit set or
+	 * with mandatory locking enabled
+	 */
+	err = nfserr_perm;
+	if (IS_APPEND(inode) || IS_ISMNDLK(inode))
+		goto out;
+	if (!inode->i_fop)
+		goto out;
+
+	/*
+	 * Check to see if there are any leases on this file.
+	 * This may block while leases are broken.
+	 */
+	err = get_lease(inode, (access & MAY_WRITE) ? FMODE_WRITE : 0);
+	if (err)
+		goto out_nfserr;
+
+	if ((access & MAY_WRITE) && (err = get_write_access(inode)) != 0)
+		goto out_nfserr;
+
+	memset(filp, 0, sizeof(*filp));
+	filp->f_op    = fops_get(inode->i_fop);
+	atomic_set(&filp->f_count, 1);
+	filp->f_dentry = dentry;
+	filp->f_vfsmnt = fhp->fh_export->ex_mnt;
+	filp->f_maxcount = INT_MAX;
+
+	if (access & MAY_WRITE) {
+		filp->f_flags = O_WRONLY|O_LARGEFILE;
+		filp->f_mode  = FMODE_WRITE;
+		DQUOT_INIT(inode);
+	} else {
+		filp->f_flags = O_RDONLY|O_LARGEFILE;
+		filp->f_mode  = FMODE_READ;
+	}
+
+	err = 0;
+	if (filp->f_op && filp->f_op->open) {
+		err = filp->f_op->open(inode, filp);
+		if (err) {
+			fops_put(filp->f_op);
+			if (access & MAY_WRITE)
+				put_write_access(inode);
+
+			/* I nearly added put_filp() call here, but this filp
+			 * is really on callers stack frame. -DaveM
+			 */
+			atomic_dec(&filp->f_count);
+		}
+	}
+out_nfserr:
+	if (err)
+		err = nfserrno(err);
+out:
+	return err;
+}
+
+/*
+ * Close a file.
+ */
+void
+nfsd_close(struct file *filp)
+{
+	struct dentry	*dentry = filp->f_dentry;
+	struct inode	*inode = dentry->d_inode;
+
+	if (filp->f_op && filp->f_op->release)
+		filp->f_op->release(inode, filp);
+	fops_put(filp->f_op);
+	if (filp->f_mode & FMODE_WRITE)
+		put_write_access(inode);
+}
+
+/*
+ * Sync a file
+ * As this calls fsync (not fdatasync) there is no need for a write_inode
+ * after it.
+ */
+inline void nfsd_dosync(struct file *filp, struct dentry *dp, 
+			struct file_operations *fop)
+{
+	struct inode *inode = dp->d_inode;
+	int (*fsync) (struct file *, struct dentry *, int);
+
+	filemap_fdatasync(inode->i_mapping);
+	if (fop && (fsync = fop->fsync))
+		fsync(filp, dp, 0);
+	filemap_fdatawait(inode->i_mapping);
+}
+	
+
+void
+nfsd_sync(struct file *filp)
+{
+	struct inode *inode = filp->f_dentry->d_inode;
+	dprintk("nfsd: sync file %s\n", filp->f_dentry->d_name.name);
+	down(&inode->i_sem);
+	nfsd_dosync(filp, filp->f_dentry, filp->f_op);
+	up(&inode->i_sem);
+}
+
+void
+nfsd_sync_dir(struct dentry *dp)
+{
+	nfsd_dosync(NULL, dp, dp->d_inode->i_fop);
+}
+
+/*
+ * Obtain the readahead parameters for the file
+ * specified by (dev, ino).
+ */
+static inline struct raparms *
+nfsd_get_raparms(dev_t dev, ino_t ino)
+{
+	struct raparms	*ra, **rap, **frap = NULL;
+	int depth = 0;
+	
+	for (rap = &raparm_cache; (ra = *rap); rap = &ra->p_next) {
+		if (ra->p_ino == ino && ra->p_dev == dev)
+			goto found;
+		depth++;
+		if (ra->p_count == 0)
+			frap = rap;
+	}
+	depth = nfsdstats.ra_size*11/10;
+	if (!frap)
+		return NULL;
+	rap = frap;
+	ra = *frap;
+	ra->p_dev = dev;
+	ra->p_ino = ino;
+	ra->p_reada = 0;
+	ra->p_ramax = 0;
+	ra->p_raend = 0;
+	ra->p_ralen = 0;
+	ra->p_rawin = 0;
+found:
+	if (rap != &raparm_cache) {
+		*rap = ra->p_next;
+		ra->p_next   = raparm_cache;
+		raparm_cache = ra;
+	}
+	ra->p_count++;
+	nfsdstats.ra_depth[depth*10/nfsdstats.ra_size]++;
+	return ra;
+}
+
+/* copied from fs/read_write.c */
+static inline loff_t llseek(struct file *file, loff_t offset, int origin)
+{
+	loff_t (*fn)(struct file *, loff_t, int);
+	loff_t retval;
+
+	fn = default_llseek;
+	if (file->f_op && file->f_op->llseek)
+		fn = file->f_op->llseek;
+	lock_kernel();
+	retval = fn(file, offset, origin);
+	unlock_kernel();
+	return retval;
+}
+
+
+/*
+ * Read data from a file. count must contain the requested read count
+ * on entry. On return, *count contains the number of bytes actually read.
+ * N.B. After this call fhp needs an fh_put
+ */
+int
+nfsd_read(struct svc_rqst *rqstp, struct svc_fh *fhp, loff_t offset,
+          char *buf, unsigned long *count)
+{
+	struct raparms	*ra;
+	mm_segment_t	oldfs;
+	int		err;
+	struct file	file;
+
+	err = nfsd_open(rqstp, fhp, S_IFREG, MAY_READ, &file);
+	if (err)
+		goto out;
+	err = nfserr_perm;
+	if (!file.f_op->read)
+		goto out_close;
+#ifdef MSNFS
+	if ((fhp->fh_export->ex_flags & NFSEXP_MSNFS) &&
+		(!lock_may_read(file.f_dentry->d_inode, offset, *count)))
+		goto out_close;
+#endif
+
+	/* Get readahead parameters */
+	ra = nfsd_get_raparms(fhp->fh_export->ex_dev, fhp->fh_dentry->d_inode->i_ino);
+	if (ra) {
+		file.f_reada = ra->p_reada;
+		file.f_ramax = ra->p_ramax;
+		file.f_raend = ra->p_raend;
+		file.f_ralen = ra->p_ralen;
+		file.f_rawin = ra->p_rawin;
+	}
+	llseek(&file, offset, 0);
+
+	oldfs = get_fs(); set_fs(KERNEL_DS);
+	err = file.f_op->read(&file, buf, *count, &file.f_pos);
+	set_fs(oldfs);
+
+	/* Write back readahead params */
+	if (ra != NULL) {
+		dprintk("nfsd: raparms %ld %ld %ld %ld %ld\n",
+			file.f_reada, file.f_ramax, file.f_raend,
+			file.f_ralen, file.f_rawin);
+		ra->p_reada = file.f_reada;
+		ra->p_ramax = file.f_ramax;
+		ra->p_raend = file.f_raend;
+		ra->p_ralen = file.f_ralen;
+		ra->p_rawin = file.f_rawin;
+		ra->p_count -= 1;
+	}
+
+	if (err >= 0) {
+		nfsdstats.io_read += err;
+		*count = err;
+		err = 0;
+	} else 
+		err = nfserrno(err);
+out_close:
+	nfsd_close(&file);
+out:
+	return err;
+}
+
+/*
+ * Write data to a file.
+ * The stable flag requests synchronous writes.
+ * N.B. After this call fhp needs an fh_put
+ */
+int
+nfsd_write(struct svc_rqst *rqstp, struct svc_fh *fhp, loff_t offset,
+				char *buf, unsigned long cnt, int *stablep)
+{
+	struct svc_export	*exp;
+	struct file		file;
+	struct dentry		*dentry;
+	struct inode		*inode;
+	mm_segment_t		oldfs;
+	int			err = 0;
+	int			stable = *stablep;
+
+	err = nfsd_open(rqstp, fhp, S_IFREG, MAY_WRITE, &file);
+	if (err)
+		goto out;
+	if (!cnt)
+		goto out_close;
+	err = nfserr_perm;
+	if (!file.f_op->write)
+		goto out_close;
+#ifdef MSNFS
+	if ((fhp->fh_export->ex_flags & NFSEXP_MSNFS) &&
+		(!lock_may_write(file.f_dentry->d_inode, offset, cnt)))
+		goto out_close;
+#endif
+
+	dentry = file.f_dentry;
+	inode = dentry->d_inode;
+	exp   = fhp->fh_export;
+
+	/*
+	 * Request sync writes if
+	 *  -	the sync export option has been set, or
+	 *  -	the client requested O_SYNC behavior (NFSv3 feature).
+	 *  -   The file system doesn't support fsync().
+	 * When gathered writes have been configured for this volume,
+	 * flushing the data to disk is handled separately below.
+	 */
+
+	if (file.f_op->fsync == 0) {/* COMMIT3 cannot work */
+	       stable = 2;
+	       *stablep = 2; /* FILE_SYNC */
+	}
+
+	if (!EX_ISSYNC(exp))
+		stable = 0;
+	if (stable && !EX_WGATHER(exp))
+		file.f_flags |= O_SYNC;
+
+
+	llseek(&file, offset, 0);
+
+	/* Write the data. */
+	oldfs = get_fs(); set_fs(KERNEL_DS);
+	err = file.f_op->write(&file, buf, cnt, &file.f_pos);
+	if (err >= 0)
+		nfsdstats.io_write += cnt;
+	set_fs(oldfs);
+
+	/* clear setuid/setgid flag after write */
+	if (err >= 0 && (inode->i_mode & (S_ISUID | S_ISGID))) {
+		struct iattr	ia;
+
+		ia.ia_valid = ATTR_MODE;
+		ia.ia_mode  = inode->i_mode & ~(S_ISUID | S_ISGID);
+		notify_change(dentry, &ia);
+	}
+
+	if (err >= 0 && stable) {
+		static unsigned long	last_ino;
+		static kdev_t		last_dev = NODEV;
+
+		/*
+		 * Gathered writes: If another process is currently
+		 * writing to the file, there's a high chance
+		 * this is another nfsd (triggered by a bulk write
+		 * from a client's biod). Rather than syncing the
+		 * file with each write request, we sleep for 10 msec.
+		 *
+		 * I don't know if this roughly approximates
+		 * C. Juszak's idea of gathered writes, but it's a
+		 * nice and simple solution (IMHO), and it seems to
+		 * work:-)
+		 */
+		if (EX_WGATHER(exp)) {
+			if (atomic_read(&inode->i_writecount) > 1
+			    || (last_ino == inode->i_ino && last_dev == inode->i_dev)) {
+				dprintk("nfsd: write defer %d\n", current->pid);
+				set_current_state(TASK_UNINTERRUPTIBLE);
+				schedule_timeout((HZ+99)/100);
+				current->state = TASK_RUNNING;
+				dprintk("nfsd: write resume %d\n", current->pid);
+			}
+
+			if (inode->i_state & I_DIRTY) {
+				dprintk("nfsd: write sync %d\n", current->pid);
+				nfsd_sync(&file);
+			}
+#if 0
+			wake_up(&inode->i_wait);
+#endif
+		}
+		last_ino = inode->i_ino;
+		last_dev = inode->i_dev;
+	}
+
+	dprintk("nfsd: write complete err=%d\n", err);
+	if (err >= 0)
+		err = 0;
+	else 
+		err = nfserrno(err);
+out_close:
+	nfsd_close(&file);
+out:
+	return err;
+}
+
+
+#ifdef CONFIG_NFSD_V3
+/*
+ * Commit all pending writes to stable storage.
+ * Strictly speaking, we could sync just the indicated file region here,
+ * but there's currently no way we can ask the VFS to do so.
+ *
+ * Unfortunately we cannot lock the file to make sure we return full WCC
+ * data to the client, as locking happens lower down in the filesystem.
+ */
+int
+nfsd_commit(struct svc_rqst *rqstp, struct svc_fh *fhp,
+               off_t offset, unsigned long count)
+{
+	struct file	file;
+	int		err;
+
+	if ((err = nfsd_open(rqstp, fhp, S_IFREG, MAY_WRITE, &file)) != 0)
+		return err;
+	if (EX_ISSYNC(fhp->fh_export)) {
+		if (file.f_op && file.f_op->fsync) {
+			nfsd_sync(&file);
+		} else {
+			err = nfserr_notsupp;
+		}
+	}
+
+	nfsd_close(&file);
+	return err;
+}
+#endif /* CONFIG_NFSD_V3 */
+
+/*
+ * Create a file (regular, directory, device, fifo); UNIX sockets 
+ * not yet implemented.
+ * If the response fh has been verified, the parent directory should
+ * already be locked. Note that the parent directory is left locked.
+ *
+ * N.B. Every call to nfsd_create needs an fh_put for _both_ fhp and resfhp
+ */
+int
+nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp,
+		char *fname, int flen, struct iattr *iap,
+		int type, dev_t rdev, struct svc_fh *resfhp)
+{
+	struct dentry	*dentry, *dchild;
+	struct inode	*dirp;
+	int		err;
+
+	err = nfserr_perm;
+	if (!flen)
+		goto out;
+	err = nfserr_exist;
+	if (isdotent(fname, flen))
+		goto out;
+
+	err = fh_verify(rqstp, fhp, S_IFDIR, MAY_CREATE);
+	if (err)
+		goto out;
+
+	dentry = fhp->fh_dentry;
+	dirp = dentry->d_inode;
+
+	err = nfserr_notdir;
+	if(!dirp->i_op || !dirp->i_op->lookup)
+		goto out;
+	/*
+	 * Check whether the response file handle has been verified yet.
+	 * If it has, the parent directory should already be locked.
+	 */
+	if (!resfhp->fh_dentry) {
+		/* called from nfsd_proc_mkdir, or possibly nfsd3_proc_create */
+		fh_lock(fhp);
+		dchild = lookup_one_len(fname, dentry, flen);
+		err = PTR_ERR(dchild);
+		if (IS_ERR(dchild))
+			goto out_nfserr;
+		err = fh_compose(resfhp, fhp->fh_export, dchild, fhp);
+		if (err)
+			goto out;
+	} else {
+		/* called from nfsd_proc_create */
+		dchild = resfhp->fh_dentry;
+		if (!fhp->fh_locked) {
+			/* not actually possible */
+			printk(KERN_ERR
+				"nfsd_create: parent %s/%s not locked!\n",
+				dentry->d_parent->d_name.name,
+				dentry->d_name.name);
+			err = -EIO;
+			goto out;
+		}
+	}
+	/*
+	 * Make sure the child dentry is still negative ...
+	 */
+	err = nfserr_exist;
+	if (dchild->d_inode) {
+		dprintk("nfsd_create: dentry %s/%s not negative!\n",
+			dentry->d_name.name, dchild->d_name.name);
+		goto out; 
+	}
+
+	if (!(iap->ia_valid & ATTR_MODE))
+		iap->ia_mode = 0;
+	iap->ia_mode = (iap->ia_mode & S_IALLUGO) | type;
+
+	/*
+	 * Get the dir op function pointer.
+	 */
+	err = nfserr_perm;
+	switch (type) {
+	case S_IFREG:
+		err = vfs_create(dirp, dchild, iap->ia_mode);
+		break;
+	case S_IFDIR:
+		err = vfs_mkdir(dirp, dchild, iap->ia_mode);
+		break;
+	case S_IFCHR:
+	case S_IFBLK:
+	case S_IFIFO:
+	case S_IFSOCK:
+		err = vfs_mknod(dirp, dchild, iap->ia_mode, rdev);
+		break;
+	default:
+	        printk("nfsd: bad file type %o in nfsd_create\n", type);
+		err = -EINVAL;
+	}
+	if (err < 0)
+		goto out_nfserr;
+
+	if (EX_ISSYNC(fhp->fh_export)) {
+		nfsd_sync_dir(dentry);
+		write_inode_now(dchild->d_inode, 1);
+	}
+
+
+	/* Set file attributes. Mode has already been set and
+	 * setting uid/gid works only for root. Irix appears to
+	 * send along the gid when it tries to implement setgid
+	 * directories via NFS.
+	 */
+	err = 0;
+	if ((iap->ia_valid &= ~(ATTR_UID|ATTR_GID|ATTR_MODE)) != 0)
+		err = nfsd_setattr(rqstp, resfhp, iap, 0, (time_t)0);
+	/*
+	 * Update the file handle to get the new inode info.
+	 */
+	if (!err)
+		err = fh_update(resfhp);
+out:
+	return err;
+
+out_nfserr:
+	err = nfserrno(err);
+	goto out;
+}
+
+#ifdef CONFIG_NFSD_V3
+/*
+ * NFSv3 version of nfsd_create
+ */
+int
+nfsd_create_v3(struct svc_rqst *rqstp, struct svc_fh *fhp,
+		char *fname, int flen, struct iattr *iap,
+		struct svc_fh *resfhp, int createmode, u32 *verifier)
+{
+	struct dentry	*dentry, *dchild;
+	struct inode	*dirp;
+	int		err;
+	__u32		v_mtime=0, v_atime=0;
+	int		v_mode=0;
+
+	err = nfserr_perm;
+	if (!flen)
+		goto out;
+	err = nfserr_exist;
+	if (isdotent(fname, flen))
+		goto out;
+	if (!(iap->ia_valid & ATTR_MODE))
+		iap->ia_mode = 0;
+	err = fh_verify(rqstp, fhp, S_IFDIR, MAY_CREATE);
+	if (err)
+		goto out;
+
+	dentry = fhp->fh_dentry;
+	dirp = dentry->d_inode;
+
+	/* Get all the sanity checks out of the way before
+	 * we lock the parent. */
+	err = nfserr_notdir;
+	if(!dirp->i_op || !dirp->i_op->lookup)
+		goto out;
+	fh_lock(fhp);
+
+	/*
+	 * Compose the response file handle.
+	 */
+	dchild = lookup_one_len(fname, dentry, flen);
+	err = PTR_ERR(dchild);
+	if (IS_ERR(dchild))
+		goto out_nfserr;
+
+	err = fh_compose(resfhp, fhp->fh_export, dchild, fhp);
+	if (err)
+		goto out;
+
+	if (createmode == NFS3_CREATE_EXCLUSIVE) {
+		/* while the verifier would fit in mtime+atime,
+		 * solaris7 gets confused (bugid 4218508) if these have
+		 * the high bit set, so we use the mode as well
+		 */
+		v_mtime = verifier[0]&0x7fffffff;
+		v_atime = verifier[1]&0x7fffffff;
+		v_mode  = S_IFREG
+			| ((verifier[0]&0x80000000) >> (32-7)) /* u+x */
+			| ((verifier[1]&0x80000000) >> (32-9)) /* u+r */
+			;
+	}
+	
+	if (dchild->d_inode) {
+		err = 0;
+
+		switch (createmode) {
+		case NFS3_CREATE_UNCHECKED:
+			if (! S_ISREG(dchild->d_inode->i_mode))
+				err = nfserr_exist;
+			else {
+				iap->ia_valid &= ATTR_SIZE;
+				goto set_attr;
+			}
+			break;
+		case NFS3_CREATE_EXCLUSIVE:
+			if (   dchild->d_inode->i_mtime == v_mtime
+			    && dchild->d_inode->i_atime == v_atime
+			    && dchild->d_inode->i_mode  == v_mode
+			    && dchild->d_inode->i_size  == 0 )
+				break;
+			 /* fallthru */
+		case NFS3_CREATE_GUARDED:
+			err = nfserr_exist;
+		}
+		goto out;
+	}
+
+	err = vfs_create(dirp, dchild, iap->ia_mode);
+	if (err < 0)
+		goto out_nfserr;
+
+	if (EX_ISSYNC(fhp->fh_export)) {
+		nfsd_sync_dir(dentry);
+		/* setattr will sync the child (or not) */
+	}
+
+	/*
+	 * Update the filehandle to get the new inode info.
+	 */
+	err = fh_update(resfhp);
+	if (err)
+		goto out;
+
+	if (createmode == NFS3_CREATE_EXCLUSIVE) {
+		/* Cram the verifier into atime/mtime/mode */
+		iap->ia_valid = ATTR_MTIME|ATTR_ATIME
+			| ATTR_MTIME_SET|ATTR_ATIME_SET
+			| ATTR_MODE;
+		iap->ia_mtime = v_mtime;
+		iap->ia_atime = v_atime;
+		iap->ia_mode  = v_mode;
+	}
+
+	/* Set file attributes.
+	 * Mode has already been set but we might need to reset it
+	 * for CREATE_EXCLUSIVE
+	 * Irix appears to send along the gid when it tries to
+	 * implement setgid directories via NFS. Clear out all that cruft.
+	 */
+ set_attr:
+	if ((iap->ia_valid &= ~(ATTR_UID|ATTR_GID)) != 0)
+ 		err = nfsd_setattr(rqstp, resfhp, iap, 0, (time_t)0);
+
+ out:
+	fh_unlock(fhp);
+ 	return err;
+ 
+ out_nfserr:
+	err = nfserrno(err);
+	goto out;
+}
+#endif /* CONFIG_NFSD_V3 */
+
+/*
+ * Read a symlink. On entry, *lenp must contain the maximum path length that
+ * fits into the buffer. On return, it contains the true length.
+ * N.B. After this call fhp needs an fh_put
+ */
+int
+nfsd_readlink(struct svc_rqst *rqstp, struct svc_fh *fhp, char *buf, int *lenp)
+{
+	struct dentry	*dentry;
+	struct inode	*inode;
+	mm_segment_t	oldfs;
+	int		err;
+
+	err = fh_verify(rqstp, fhp, S_IFLNK, MAY_NOP);
+	if (err)
+		goto out;
+
+	dentry = fhp->fh_dentry;
+	inode = dentry->d_inode;
+
+	err = nfserr_inval;
+	if (!inode->i_op || !inode->i_op->readlink)
+		goto out;
+
+	UPDATE_ATIME(inode);
+	/* N.B. Why does this call need a get_fs()??
+	 * Remove the set_fs and watch the fireworks:-) --okir
+	 */
+
+	oldfs = get_fs(); set_fs(KERNEL_DS);
+	err = inode->i_op->readlink(dentry, buf, *lenp);
+	set_fs(oldfs);
+
+	if (err < 0)
+		goto out_nfserr;
+	*lenp = err;
+	err = 0;
+out:
+	return err;
+
+out_nfserr:
+	err = nfserrno(err);
+	goto out;
+}
+
+/*
+ * Create a symlink and look up its inode
+ * N.B. After this call _both_ fhp and resfhp need an fh_put
+ */
+int
+nfsd_symlink(struct svc_rqst *rqstp, struct svc_fh *fhp,
+				char *fname, int flen,
+				char *path,  int plen,
+				struct svc_fh *resfhp,
+				struct iattr *iap)
+{
+	struct dentry	*dentry, *dnew;
+	int		err, cerr;
+
+	err = nfserr_noent;
+	if (!flen || !plen)
+		goto out;
+	err = nfserr_exist;
+	if (isdotent(fname, flen))
+		goto out;
+
+	err = fh_verify(rqstp, fhp, S_IFDIR, MAY_CREATE);
+	if (err)
+		goto out;
+	fh_lock(fhp);
+	dentry = fhp->fh_dentry;
+	dnew = lookup_one_len(fname, dentry, flen);
+	err = PTR_ERR(dnew);
+	if (IS_ERR(dnew))
+		goto out_nfserr;
+
+	err = vfs_symlink(dentry->d_inode, dnew, path);
+	if (!err) {
+		if (EX_ISSYNC(fhp->fh_export))
+			nfsd_sync_dir(dentry);
+		if (iap) {
+			iap->ia_valid &= ATTR_MODE /* ~(ATTR_MODE|ATTR_UID|ATTR_GID)*/;
+			if (iap->ia_valid) {
+				iap->ia_valid |= ATTR_CTIME;
+				iap->ia_mode = (iap->ia_mode&S_IALLUGO)
+					| S_IFLNK;
+				err = notify_change(dnew, iap);
+				if (err)
+					err = nfserrno(err);
+				else if (EX_ISSYNC(fhp->fh_export))
+					write_inode_now(dentry->d_inode, 1);
+		       }
+		}
+	} else
+		err = nfserrno(err);
+	fh_unlock(fhp);
+
+	/* Compose the fh so the dentry will be freed ... */
+	cerr = fh_compose(resfhp, fhp->fh_export, dnew, fhp);
+	if (err==0) err = cerr;
+out:
+	return err;
+
+out_nfserr:
+	err = nfserrno(err);
+	goto out;
+}
+
+/*
+ * Create a hardlink
+ * N.B. After this call _both_ ffhp and tfhp need an fh_put
+ */
+int
+nfsd_link(struct svc_rqst *rqstp, struct svc_fh *ffhp,
+				char *name, int len, struct svc_fh *tfhp)
+{
+	struct dentry	*ddir, *dnew, *dold;
+	struct inode	*dirp, *dest;
+	int		err;
+
+	err = fh_verify(rqstp, ffhp, S_IFDIR, MAY_CREATE);
+	if (err)
+		goto out;
+	err = fh_verify(rqstp, tfhp, -S_IFDIR, MAY_NOP);
+	if (err)
+		goto out;
+
+	err = nfserr_perm;
+	if (!len)
+		goto out;
+	err = nfserr_exist;
+	if (isdotent(name, len))
+		goto out;
+
+	fh_lock(ffhp);
+	ddir = ffhp->fh_dentry;
+	dirp = ddir->d_inode;
+
+	dnew = lookup_one_len(name, ddir, len);
+	err = PTR_ERR(dnew);
+	if (IS_ERR(dnew))
+		goto out_nfserr;
+
+	dold = tfhp->fh_dentry;
+	dest = dold->d_inode;
+
+	err = vfs_link(dold, dirp, dnew);
+	if (!err) {
+		if (EX_ISSYNC(ffhp->fh_export)) {
+			nfsd_sync_dir(ddir);
+			write_inode_now(dest, 1);
+		}
+	} else {
+		if (err == -EXDEV && rqstp->rq_vers == 2)
+			err = nfserr_acces;
+		else
+			err = nfserrno(err);
+	}
+
+	fh_unlock(ffhp);
+	dput(dnew);
+out:
+	return err;
+
+out_nfserr:
+	err = nfserrno(err);
+	goto out;
+}
+
+/*
+ * Rename a file
+ * N.B. After this call _both_ ffhp and tfhp need an fh_put
+ */
+int
+nfsd_rename(struct svc_rqst *rqstp, struct svc_fh *ffhp, char *fname, int flen,
+			    struct svc_fh *tfhp, char *tname, int tlen)
+{
+	struct dentry	*fdentry, *tdentry, *odentry, *ndentry;
+	struct inode	*fdir, *tdir;
+	int		err;
+
+	err = fh_verify(rqstp, ffhp, S_IFDIR, MAY_REMOVE);
+	if (err)
+		goto out;
+	err = fh_verify(rqstp, tfhp, S_IFDIR, MAY_CREATE);
+	if (err)
+		goto out;
+
+	fdentry = ffhp->fh_dentry;
+	fdir = fdentry->d_inode;
+
+	tdentry = tfhp->fh_dentry;
+	tdir = tdentry->d_inode;
+
+	err = (rqstp->rq_vers == 2) ? nfserr_acces : nfserr_xdev;
+	if (fdir->i_dev != tdir->i_dev)
+		goto out;
+
+	err = nfserr_perm;
+	if (!flen || isdotent(fname, flen) || !tlen || isdotent(tname, tlen))
+		goto out;
+
+	/* cannot use fh_lock as we need deadlock protective ordering
+	 * so do it by hand */
+	double_down(&tdir->i_sem, &fdir->i_sem);
+	ffhp->fh_locked = tfhp->fh_locked = 1;
+	fill_pre_wcc(ffhp);
+	fill_pre_wcc(tfhp);
+
+	odentry = lookup_one_len(fname, fdentry, flen);
+	err = PTR_ERR(odentry);
+	if (IS_ERR(odentry))
+		goto out_nfserr;
+
+	err = -ENOENT;
+	if (!odentry->d_inode)
+		goto out_dput_old;
+
+	ndentry = lookup_one_len(tname, tdentry, tlen);
+	err = PTR_ERR(ndentry);
+	if (IS_ERR(ndentry))
+		goto out_dput_old;
+
+
+#ifdef MSNFS
+	if ((ffhp->fh_export->ex_flags & NFSEXP_MSNFS) &&
+		((atomic_read(&odentry->d_count) > 1)
+		 || (atomic_read(&ndentry->d_count) > 1))) {
+			err = nfserr_perm;
+	} else
+#endif
+	err = vfs_rename(fdir, odentry, tdir, ndentry);
+	if (!err && EX_ISSYNC(tfhp->fh_export)) {
+		nfsd_sync_dir(tdentry);
+		nfsd_sync_dir(fdentry);
+	}
+	dput(ndentry);
+
+ out_dput_old:
+	dput(odentry);
+ out_nfserr:
+	if (err)
+		err = nfserrno(err);
+
+	/* we cannot reply on fh_unlock on the two filehandles,
+	 * as that would do the wrong thing if the two directories
+	 * were the same, so again we do it by hand
+	 */
+	fill_post_wcc(ffhp);
+	fill_post_wcc(tfhp);
+	double_up(&tdir->i_sem, &fdir->i_sem);
+	ffhp->fh_locked = tfhp->fh_locked = 0;
+	
+out:
+	return err;
+}
+
+/*
+ * Unlink a file or directory
+ * N.B. After this call fhp needs an fh_put
+ */
+int
+nfsd_unlink(struct svc_rqst *rqstp, struct svc_fh *fhp, int type,
+				char *fname, int flen)
+{
+	struct dentry	*dentry, *rdentry;
+	struct inode	*dirp;
+	int		err;
+
+	err = nfserr_acces;
+	if (!flen || isdotent(fname, flen))
+		goto out;
+	err = fh_verify(rqstp, fhp, S_IFDIR, MAY_REMOVE);
+	if (err)
+		goto out;
+
+	fh_lock(fhp);
+	dentry = fhp->fh_dentry;
+	dirp = dentry->d_inode;
+
+	rdentry = lookup_one_len(fname, dentry, flen);
+	err = PTR_ERR(rdentry);
+	if (IS_ERR(rdentry))
+		goto out_nfserr;
+
+	if (!rdentry->d_inode) {
+		dput(rdentry);
+		err = nfserr_noent;
+		goto out;
+	}
+
+	if (type != S_IFDIR) { /* It's UNLINK */
+#ifdef MSNFS
+		if ((fhp->fh_export->ex_flags & NFSEXP_MSNFS) &&
+			(atomic_read(&rdentry->d_count) > 1)) {
+			err = nfserr_perm;
+		} else
+#endif
+		err = vfs_unlink(dirp, rdentry);
+	} else { /* It's RMDIR */
+		err = vfs_rmdir(dirp, rdentry);
+	}
+
+	dput(rdentry);
+
+	if (err)
+		goto out_nfserr;
+	if (EX_ISSYNC(fhp->fh_export)) 
+		nfsd_sync_dir(dentry);
+
+out:
+	return err;
+
+out_nfserr:
+	err = nfserrno(err);
+	goto out;
+}
+
+/*
+ * Read entries from a directory.
+ * The verifier is an NFSv3 thing we ignore for now.
+ */
+int
+nfsd_readdir(struct svc_rqst *rqstp, struct svc_fh *fhp, loff_t offset, 
+             encode_dent_fn func, u32 *buffer, int *countp, u32 *verf)
+{
+	u32		*p;
+	int		oldlen, eof, err;
+	struct file	file;
+	struct readdir_cd cd;
+
+	err = nfsd_open(rqstp, fhp, S_IFDIR, MAY_READ, &file);
+	if (err)
+		goto out;
+
+	offset = llseek(&file, offset, 0);
+	if (offset < 0) {
+		err = nfserrno((int)offset);
+		goto out_close;
+	}
+
+	/* Set up the readdir context */
+	memset(&cd, 0, sizeof(cd));
+	cd.rqstp  = rqstp;
+	cd.buffer = buffer;
+	cd.buflen = *countp; /* count of words */
+	cd.dirfh  = fhp;
+
+	/*
+	 * Read the directory entries. This silly loop is necessary because
+	 * readdir() is not guaranteed to fill up the entire buffer, but
+	 * may choose to do less.
+	 */
+
+	do {
+		oldlen = cd.buflen;
+
+		err = vfs_readdir(&file, (filldir_t) func, &cd);
+
+		if (err < 0)
+			goto out_nfserr;
+
+	} while (oldlen != cd.buflen && !cd.eob);
+
+	/* If we didn't fill the buffer completely, we're at EOF */
+	eof = !cd.eob;
+
+
+	offset = llseek(&file, 0LL, 1);
+	if (cd.offset) {
+		if (rqstp->rq_vers == 3)
+			(void)xdr_encode_hyper(cd.offset, offset);
+		else
+			*cd.offset = htonl(offset);
+	}
+
+	p = cd.buffer;
+	*p++ = 0;			/* no more entries */
+	*p++ = htonl(eof);		/* end of directory */
+	*countp = (caddr_t) p - (caddr_t) buffer;
+
+	dprintk("nfsd: readdir result %d bytes, eof %d offset %d\n",
+				*countp, eof,
+				cd.offset? ntohl(*cd.offset) : -1);
+	err = 0;
+out_close:
+	nfsd_close(&file);
+out:
+	return err;
+
+out_nfserr:
+	err = nfserrno(err);
+	goto out_close;
+}
+
+/*
+ * Get file system stats
+ * N.B. After this call fhp needs an fh_put
+ */
+int
+nfsd_statfs(struct svc_rqst *rqstp, struct svc_fh *fhp, struct statfs *stat)
+{
+	int err = fh_verify(rqstp, fhp, 0, MAY_NOP);
+	if (!err && vfs_statfs(fhp->fh_dentry->d_inode->i_sb,stat))
+		err = nfserr_io;
+	return err;
+}
+
+/*
+ * Check for a user's access permissions to this inode.
+ */
+int
+nfsd_permission(struct svc_export *exp, struct dentry *dentry, int acc)
+{
+	struct inode	*inode = dentry->d_inode;
+	int		err;
+
+	if (acc == MAY_NOP)
+		return 0;
+#if 0
+	dprintk("nfsd: permission 0x%x%s%s%s%s%s%s%s mode 0%o%s%s%s\n",
+		acc,
+		(acc & MAY_READ)?	" read"  : "",
+		(acc & MAY_WRITE)?	" write" : "",
+		(acc & MAY_EXEC)?	" exec"  : "",
+		(acc & MAY_SATTR)?	" sattr" : "",
+		(acc & MAY_TRUNC)?	" trunc" : "",
+		(acc & MAY_LOCK)?	" lock"  : "",
+		(acc & MAY_OWNER_OVERRIDE)? " owneroverride" : "",
+		inode->i_mode,
+		IS_IMMUTABLE(inode)?	" immut" : "",
+		IS_APPEND(inode)?	" append" : "",
+		IS_RDONLY(inode)?	" ro" : "");
+	dprintk("      owner %d/%d user %d/%d\n",
+		inode->i_uid, inode->i_gid, current->fsuid, current->fsgid);
+#endif
+
+	/* The following code is here to make IRIX happy, which
+	 * does a permission check every time a user does
+	 *	echo yaddayadda > special-file
+	 * by sending a CREATE request.
+	 * The original code would check read-only export status
+	 * only for regular files and directories, allowing
+	 * clients to chown/chmod device files and fifos even
+	 * on volumes exported read-only. */
+	if (!(acc & _NFSD_IRIX_BOGOSITY)
+	 && (acc & (MAY_WRITE | MAY_SATTR | MAY_TRUNC))) {
+		if (EX_RDONLY(exp) || IS_RDONLY(inode))
+			return nfserr_rofs;
+		if (/* (acc & MAY_WRITE) && */ IS_IMMUTABLE(inode))
+			return nfserr_perm;
+	}
+	if ((acc & MAY_TRUNC) && IS_APPEND(inode))
+		return nfserr_perm;
+
+	if (acc & MAY_LOCK) {
+		/* If we cannot rely on authentication in NLM requests,
+		 * just allow locks, otherwise require read permission, or
+		 * ownership
+		 */
+		if (exp->ex_flags & NFSEXP_NOAUTHNLM)
+			return 0;
+		else
+			acc = MAY_READ | MAY_OWNER_OVERRIDE;
+	}
+	/*
+	 * The file owner always gets access permission for accesses that
+	 * would normally be checked at open time. This is to make
+	 * file access work even when the client has done a fchmod(fd, 0).
+	 *
+	 * However, `cp foo bar' should fail nevertheless when bar is
+	 * readonly. A sensible way to do this might be to reject all
+	 * attempts to truncate a read-only file, because a creat() call
+	 * always implies file truncation.
+	 * ... but this isn't really fair.  A process may reasonably call
+	 * ftruncate on an open file descriptor on a file with perm 000.
+	 * We must trust the client to do permission checking - using "ACCESS"
+	 * with NFSv3.
+	 */
+	if ((acc & MAY_OWNER_OVERRIDE) &&
+	    inode->i_uid == current->fsuid)
+		return 0;
+
+	err = permission(inode, acc & (MAY_READ|MAY_WRITE|MAY_EXEC));
+
+	/* Allow read access to binaries even when mode 111 */
+	if (err == -EACCES && S_ISREG(inode->i_mode) &&
+	    acc == (MAY_READ | MAY_OWNER_OVERRIDE))
+		err = permission(inode, MAY_EXEC);
+
+	return err? nfserrno(err) : 0;
+}
+
+void
+nfsd_racache_shutdown(void)
+{
+	if (!raparm_cache)
+		return;
+	dprintk("nfsd: freeing readahead buffers.\n");
+	kfree(raparml);
+	raparm_cache = raparml = NULL;
+}
+/*
+ * Initialize readahead param cache
+ */
+int
+nfsd_racache_init(int cache_size)
+{
+	int	i;
+
+	if (raparm_cache)
+		return 0;
+	raparml = kmalloc(sizeof(struct raparms) * cache_size, GFP_KERNEL);
+
+	if (raparml != NULL) {
+		dprintk("nfsd: allocating %d readahead buffers.\n",
+			cache_size);
+		memset(raparml, 0, sizeof(struct raparms) * cache_size);
+		for (i = 0; i < cache_size - 1; i++) {
+			raparml[i].p_next = raparml + i + 1;
+		}
+		raparm_cache = raparml;
+	} else {
+		printk(KERN_WARNING
+		       "nfsd: Could not allocate memory read-ahead cache.\n");
+		return -ENOMEM;
+	}
+	nfsdstats.ra_size = cache_size;
+	return 0;
+}
diff --git a/fs/nls/Config.in b/fs/nls/Config.in
new file mode 100644
index 00000000000000..262f75c5df0635
--- /dev/null
+++ b/fs/nls/Config.in
@@ -0,0 +1,64 @@
+#
+# Native language support configuration
+#
+
+# smb wants NLS
+if [ "$CONFIG_SMB_FS" = "m" -o "$CONFIG_SMB_FS" = "y" ]; then
+  define_bool CONFIG_SMB_NLS y
+else
+  define_bool CONFIG_SMB_NLS n
+fi
+
+# msdos and Joliet want NLS
+if [ "$CONFIG_JOLIET" = "y" -o "$CONFIG_FAT_FS" != "n" \
+	-o "$CONFIG_NTFS_FS" != "n" -o "$CONFIG_NCPFS_NLS" = "y" \
+	-o "$CONFIG_SMB_NLS" = "y" -o "$CONFIG_JFS_FS" != "n" \
+	-o "$CONFIG_BEFS_FS" != "n" -o "$CONFIG_HFSPLUS_FS" != "n" ]; then
+  define_bool CONFIG_NLS y
+else
+  define_bool CONFIG_NLS n
+fi
+
+if [ "$CONFIG_NLS" = "y" ]; then
+  mainmenu_option next_comment
+  comment 'Native Language Support'
+  string 'Default NLS Option' CONFIG_NLS_DEFAULT "iso8859-1"
+  tristate 'Codepage 437 (United States, Canada)'  CONFIG_NLS_CODEPAGE_437
+  tristate 'Codepage 737 (Greek)'                  CONFIG_NLS_CODEPAGE_737
+  tristate 'Codepage 775 (Baltic Rim)'             CONFIG_NLS_CODEPAGE_775
+  tristate 'Codepage 850 (Europe)'                 CONFIG_NLS_CODEPAGE_850
+  tristate 'Codepage 852 (Central/Eastern Europe)' CONFIG_NLS_CODEPAGE_852
+  tristate 'Codepage 855 (Cyrillic)'               CONFIG_NLS_CODEPAGE_855
+  tristate 'Codepage 857 (Turkish)'                CONFIG_NLS_CODEPAGE_857
+  tristate 'Codepage 860 (Portuguese)'             CONFIG_NLS_CODEPAGE_860
+  tristate 'Codepage 861 (Icelandic)'              CONFIG_NLS_CODEPAGE_861
+  tristate 'Codepage 862 (Hebrew)'                 CONFIG_NLS_CODEPAGE_862
+  tristate 'Codepage 863 (Canadian French)'        CONFIG_NLS_CODEPAGE_863
+  tristate 'Codepage 864 (Arabic)'                 CONFIG_NLS_CODEPAGE_864
+  tristate 'Codepage 865 (Norwegian, Danish)'      CONFIG_NLS_CODEPAGE_865
+  tristate 'Codepage 866 (Cyrillic/Russian)'       CONFIG_NLS_CODEPAGE_866
+  tristate 'Codepage 869 (Greek)'                  CONFIG_NLS_CODEPAGE_869
+  tristate 'Simplified Chinese charset (CP936, GB2312)' CONFIG_NLS_CODEPAGE_936
+  tristate 'Traditional Chinese charset (Big5)'    CONFIG_NLS_CODEPAGE_950
+  tristate 'Japanese charsets (Shift-JIS, EUC-JP)' CONFIG_NLS_CODEPAGE_932
+  tristate 'Korean charset (CP949, EUC-KR)'        CONFIG_NLS_CODEPAGE_949
+  tristate 'Thai charset (CP874, TIS-620)'         CONFIG_NLS_CODEPAGE_874
+  tristate 'Hebrew charsets (ISO-8859-8, CP1255)'  CONFIG_NLS_ISO8859_8
+  tristate 'Windows CP1250 (Slavic/Central European Languages)' CONFIG_NLS_CODEPAGE_1250
+  tristate 'Windows CP1251 (Bulgarian, Belarusian)' CONFIG_NLS_CODEPAGE_1251
+  tristate 'NLS ISO 8859-1  (Latin 1; Western European Languages)' CONFIG_NLS_ISO8859_1
+  tristate 'NLS ISO 8859-2  (Latin 2; Slavic/Central European Languages)' CONFIG_NLS_ISO8859_2
+  tristate 'NLS ISO 8859-3  (Latin 3; Esperanto, Galician, Maltese, Turkish)' CONFIG_NLS_ISO8859_3
+  tristate 'NLS ISO 8859-4  (Latin 4; old Baltic charset)' CONFIG_NLS_ISO8859_4
+  tristate 'NLS ISO 8859-5  (Cyrillic)'             CONFIG_NLS_ISO8859_5
+  tristate 'NLS ISO 8859-6  (Arabic)'               CONFIG_NLS_ISO8859_6
+  tristate 'NLS ISO 8859-7  (Modern Greek)'         CONFIG_NLS_ISO8859_7
+  tristate 'NLS ISO 8859-9  (Latin 5; Turkish)'     CONFIG_NLS_ISO8859_9
+  tristate 'NLS ISO 8859-13 (Latin 7; Baltic)'      CONFIG_NLS_ISO8859_13
+  tristate 'NLS ISO 8859-14 (Latin 8; Celtic)'      CONFIG_NLS_ISO8859_14
+  tristate 'NLS ISO 8859-15 (Latin 9; Western European Languages with Euro)' CONFIG_NLS_ISO8859_15
+  tristate 'NLS KOI8-R (Russian)'                   CONFIG_NLS_KOI8_R
+  tristate 'NLS KOI8-U/RU (Ukrainian, Belarusian)' CONFIG_NLS_KOI8_U
+  tristate 'NLS UTF8'                               CONFIG_NLS_UTF8
+  endmenu
+fi
diff --git a/fs/nls/Makefile b/fs/nls/Makefile
new file mode 100644
index 00000000000000..d3d4ab272c202a
--- /dev/null
+++ b/fs/nls/Makefile
@@ -0,0 +1,52 @@
+#
+# Makefile for native language support
+#
+
+obj-y	:=	nls_base.o
+obj-m	:=
+obj-n	:=
+obj-	:=
+
+obj-$(CONFIG_NLS_CODEPAGE_437)	+= nls_cp437.o
+obj-$(CONFIG_NLS_CODEPAGE_737)	+= nls_cp737.o
+obj-$(CONFIG_NLS_CODEPAGE_775)	+= nls_cp775.o
+obj-$(CONFIG_NLS_CODEPAGE_850)	+= nls_cp850.o
+obj-$(CONFIG_NLS_CODEPAGE_852)	+= nls_cp852.o
+obj-$(CONFIG_NLS_CODEPAGE_855)	+= nls_cp855.o
+obj-$(CONFIG_NLS_CODEPAGE_857)	+= nls_cp857.o
+obj-$(CONFIG_NLS_CODEPAGE_860)	+= nls_cp860.o
+obj-$(CONFIG_NLS_CODEPAGE_861)	+= nls_cp861.o
+obj-$(CONFIG_NLS_CODEPAGE_862)	+= nls_cp862.o
+obj-$(CONFIG_NLS_CODEPAGE_863)	+= nls_cp863.o
+obj-$(CONFIG_NLS_CODEPAGE_864)	+= nls_cp864.o
+obj-$(CONFIG_NLS_CODEPAGE_865)	+= nls_cp865.o
+obj-$(CONFIG_NLS_CODEPAGE_866)	+= nls_cp866.o
+obj-$(CONFIG_NLS_CODEPAGE_869)	+= nls_cp869.o
+obj-$(CONFIG_NLS_CODEPAGE_874)	+= nls_cp874.o nls_tis-620.o
+obj-$(CONFIG_NLS_CODEPAGE_932)	+= nls_cp932.o nls_sjis.o nls_euc-jp.o
+obj-$(CONFIG_NLS_CODEPAGE_936)	+= nls_cp936.o nls_gb2312.o
+obj-$(CONFIG_NLS_CODEPAGE_949)	+= nls_cp949.o nls_euc-kr.o
+obj-$(CONFIG_NLS_CODEPAGE_950)	+= nls_cp950.o nls_big5.o
+obj-$(CONFIG_NLS_CODEPAGE_1250)	+= nls_cp1250.o
+obj-$(CONFIG_NLS_CODEPAGE_1251)	+= nls_cp1251.o
+obj-$(CONFIG_NLS_ISO8859_1)	+= nls_iso8859-1.o
+obj-$(CONFIG_NLS_ISO8859_2)	+= nls_iso8859-2.o
+obj-$(CONFIG_NLS_ISO8859_3)	+= nls_iso8859-3.o
+obj-$(CONFIG_NLS_ISO8859_4)	+= nls_iso8859-4.o
+obj-$(CONFIG_NLS_ISO8859_5)	+= nls_iso8859-5.o
+obj-$(CONFIG_NLS_ISO8859_6)	+= nls_iso8859-6.o
+obj-$(CONFIG_NLS_ISO8859_7)	+= nls_iso8859-7.o
+obj-$(CONFIG_NLS_ISO8859_8)	+= nls_cp1255.o nls_iso8859-8.o
+obj-$(CONFIG_NLS_ISO8859_9)	+= nls_iso8859-9.o
+obj-$(CONFIG_NLS_ISO8859_13)	+= nls_iso8859-13.o
+obj-$(CONFIG_NLS_ISO8859_14)	+= nls_iso8859-14.o
+obj-$(CONFIG_NLS_ISO8859_15)	+= nls_iso8859-15.o
+obj-$(CONFIG_NLS_KOI8_R)	+= nls_koi8-r.o
+obj-$(CONFIG_NLS_KOI8_U)	+= nls_koi8-u.o nls_koi8-ru.o
+obj-$(CONFIG_NLS_UTF8)		+= nls_utf8.o
+
+export-objs = $(obj-y)
+
+O_TARGET = nls.o
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/nls/nls_base.c b/fs/nls/nls_base.c
new file mode 100644
index 00000000000000..6c5e7883e675f3
--- /dev/null
+++ b/fs/nls/nls_base.c
@@ -0,0 +1,501 @@
+/*
+ * linux/fs/nls_base.c
+ *
+ * Native language support--charsets and unicode translations.
+ * By Gordon Chaffee 1996, 1997
+ *
+ * Unicode based case conversion 1999 by Wolfram Pienkoss
+ *
+ */
+
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/config.h>
+#include <linux/nls.h>
+#include <linux/slab.h>
+#include <linux/errno.h>
+#ifdef CONFIG_KMOD
+#include <linux/kmod.h>
+#endif
+#include <linux/spinlock.h>
+
+static struct nls_table *tables;
+static spinlock_t nls_lock = SPIN_LOCK_UNLOCKED;
+
+/*
+ * Sample implementation from Unicode home page.
+ * http://www.stonehand.com/unicode/standard/fss-utf.html
+ */
+struct utf8_table {
+	int     cmask;
+	int     cval;
+	int     shift;
+	long    lmask;
+	long    lval;
+};
+
+static struct utf8_table utf8_table[] =
+{
+    {0x80,  0x00,   0*6,    0x7F,           0,         /* 1 byte sequence */},
+    {0xE0,  0xC0,   1*6,    0x7FF,          0x80,      /* 2 byte sequence */},
+    {0xF0,  0xE0,   2*6,    0xFFFF,         0x800,     /* 3 byte sequence */},
+    {0xF8,  0xF0,   3*6,    0x1FFFFF,       0x10000,   /* 4 byte sequence */},
+    {0xFC,  0xF8,   4*6,    0x3FFFFFF,      0x200000,  /* 5 byte sequence */},
+    {0xFE,  0xFC,   5*6,    0x7FFFFFFF,     0x4000000, /* 6 byte sequence */},
+    {0,						       /* end of table    */}
+};
+
+int
+utf8_mbtowc(wchar_t *p, const __u8 *s, int n)
+{
+	long l;
+	int c0, c, nc;
+	struct utf8_table *t;
+  
+	nc = 0;
+	c0 = *s;
+	l = c0;
+	for (t = utf8_table; t->cmask; t++) {
+		nc++;
+		if ((c0 & t->cmask) == t->cval) {
+			l &= t->lmask;
+			if (l < t->lval)
+				return -1;
+			*p = l;
+			return nc;
+		}
+		if (n <= nc)
+			return -1;
+		s++;
+		c = (*s ^ 0x80) & 0xFF;
+		if (c & 0xC0)
+			return -1;
+		l = (l << 6) | c;
+	}
+	return -1;
+}
+
+int
+utf8_mbstowcs(wchar_t *pwcs, const __u8 *s, int n)
+{
+	__u16 *op;
+	const __u8 *ip;
+	int size;
+
+	op = pwcs;
+	ip = s;
+	while (*ip && n > 0) {
+		if (*ip & 0x80) {
+			size = utf8_mbtowc(op, ip, n);
+			if (size == -1) {
+				/* Ignore character and move on */
+				ip++;
+				n--;
+			} else {
+				op++;
+				ip += size;
+				n -= size;
+			}
+		} else {
+			*op++ = *ip++;
+		}
+	}
+	return (op - pwcs);
+}
+
+int
+utf8_wctomb(__u8 *s, wchar_t wc, int maxlen)
+{
+	long l;
+	int c, nc;
+	struct utf8_table *t;
+  
+	if (s == 0)
+		return 0;
+  
+	l = wc;
+	nc = 0;
+	for (t = utf8_table; t->cmask && maxlen; t++, maxlen--) {
+		nc++;
+		if (l <= t->lmask) {
+			c = t->shift;
+			*s = t->cval | (l >> c);
+			while (c > 0) {
+				c -= 6;
+				s++;
+				*s = 0x80 | ((l >> c) & 0x3F);
+			}
+			return nc;
+		}
+	}
+	return -1;
+}
+
+int
+utf8_wcstombs(__u8 *s, const wchar_t *pwcs, int maxlen)
+{
+	const __u16 *ip;
+	__u8 *op;
+	int size;
+
+	op = s;
+	ip = pwcs;
+	while (*ip && maxlen > 0) {
+		if (*ip > 0x7f) {
+			size = utf8_wctomb(op, *ip, maxlen);
+			if (size == -1) {
+				/* Ignore character and move on */
+				maxlen--;
+			} else {
+				op += size;
+				maxlen -= size;
+			}
+		} else {
+			*op++ = (__u8) *ip;
+		}
+		ip++;
+	}
+	return (op - s);
+}
+
+int register_nls(struct nls_table * nls)
+{
+	struct nls_table ** tmp = &tables;
+
+	if (!nls)
+		return -EINVAL;
+	if (nls->next)
+		return -EBUSY;
+
+	spin_lock(&nls_lock);
+	while (*tmp) {
+		if (nls == *tmp) {
+			spin_unlock(&nls_lock);
+			return -EBUSY;
+		}
+		tmp = &(*tmp)->next;
+	}
+	nls->next = tables;
+	tables = nls;
+	spin_unlock(&nls_lock);
+	return 0;	
+}
+
+int unregister_nls(struct nls_table * nls)
+{
+	struct nls_table ** tmp = &tables;
+
+	spin_lock(&nls_lock);
+	while (*tmp) {
+		if (nls == *tmp) {
+			*tmp = nls->next;
+			spin_unlock(&nls_lock);
+			return 0;
+		}
+		tmp = &(*tmp)->next;
+	}
+	spin_unlock(&nls_lock);
+	return -EINVAL;
+}
+
+static struct nls_table *find_nls(char *charset)
+{
+	struct nls_table *nls;
+	spin_lock(&nls_lock);
+	for (nls = tables; nls; nls = nls->next)
+		if (! strcmp(nls->charset, charset))
+			break;
+	if (nls && !try_inc_mod_count(nls->owner))
+		nls = NULL;
+	spin_unlock(&nls_lock);
+	return nls;
+}
+
+struct nls_table *load_nls(char *charset)
+{
+	struct nls_table *nls;
+#ifdef CONFIG_KMOD
+	char buf[40];
+	int ret;
+#endif
+
+	nls = find_nls(charset);
+	if (nls)
+		return nls;
+
+#ifdef CONFIG_KMOD
+	if (strlen(charset) > sizeof(buf) - sizeof("nls_")) {
+		printk("Unable to load NLS charset %s: name too long\n",
+			charset);
+		return NULL;
+	}
+		
+	sprintf(buf, "nls_%s", charset);
+	ret = request_module(buf);
+	if (ret != 0) {
+		printk("Unable to load NLS charset %s\n", charset);
+		return NULL;
+	}
+	nls = find_nls(charset);
+#endif
+	return nls;
+}
+
+void unload_nls(struct nls_table *nls)
+{
+	if (nls->owner)
+		__MOD_DEC_USE_COUNT(nls->owner);
+}
+
+wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x0080, 0x0081, 0x0082, 0x0083,
+	0x0084, 0x0085, 0x0086, 0x0087,
+	0x0088, 0x0089, 0x008a, 0x008b,
+	0x008c, 0x008d, 0x008e, 0x008f,
+	/* 0x90*/
+	0x0090, 0x0091, 0x0092, 0x0093,
+	0x0094, 0x0095, 0x0096, 0x0097,
+	0x0098, 0x0099, 0x009a, 0x009b,
+	0x009c, 0x009d, 0x009e, 0x009f,
+	/* 0xa0*/
+	0x00a0, 0x00a1, 0x00a2, 0x00a3,
+	0x00a4, 0x00a5, 0x00a6, 0x00a7,
+	0x00a8, 0x00a9, 0x00aa, 0x00ab,
+	0x00ac, 0x00ad, 0x00ae, 0x00af,
+	/* 0xb0*/
+	0x00b0, 0x00b1, 0x00b2, 0x00b3,
+	0x00b4, 0x00b5, 0x00b6, 0x00b7,
+	0x00b8, 0x00b9, 0x00ba, 0x00bb,
+	0x00bc, 0x00bd, 0x00be, 0x00bf,
+	/* 0xc0*/
+	0x00c0, 0x00c1, 0x00c2, 0x00c3,
+	0x00c4, 0x00c5, 0x00c6, 0x00c7,
+	0x00c8, 0x00c9, 0x00ca, 0x00cb,
+	0x00cc, 0x00cd, 0x00ce, 0x00cf,
+	/* 0xd0*/
+	0x00d0, 0x00d1, 0x00d2, 0x00d3,
+	0x00d4, 0x00d5, 0x00d6, 0x00d7,
+	0x00d8, 0x00d9, 0x00da, 0x00db,
+	0x00dc, 0x00dd, 0x00de, 0x00df,
+	/* 0xe0*/
+	0x00e0, 0x00e1, 0x00e2, 0x00e3,
+	0x00e4, 0x00e5, 0x00e6, 0x00e7,
+	0x00e8, 0x00e9, 0x00ea, 0x00eb,
+	0x00ec, 0x00ed, 0x00ee, 0x00ef,
+	/* 0xf0*/
+	0x00f0, 0x00f1, 0x00f2, 0x00f3,
+	0x00f4, 0x00f5, 0x00f6, 0x00f7,
+	0x00f8, 0x00f9, 0x00fa, 0x00fb,
+	0x00fc, 0x00fd, 0x00fe, 0x00ff,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table default_table = {
+	"default",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	NULL,
+};
+
+/* Returns a simple default translation table */
+struct nls_table *load_nls_default(void)
+{
+	struct nls_table *default_nls;
+	
+	default_nls = load_nls(CONFIG_NLS_DEFAULT);
+	if (default_nls != NULL)
+		return default_nls;
+	else
+               return &default_table;
+}
+
+EXPORT_SYMBOL(register_nls);
+EXPORT_SYMBOL(unregister_nls);
+EXPORT_SYMBOL(unload_nls);
+EXPORT_SYMBOL(load_nls);
+EXPORT_SYMBOL(load_nls_default);
+EXPORT_SYMBOL(utf8_mbtowc);
+EXPORT_SYMBOL(utf8_mbstowcs);
+EXPORT_SYMBOL(utf8_wctomb);
+EXPORT_SYMBOL(utf8_wcstombs);
diff --git a/fs/nls/nls_big5.c b/fs/nls/nls_big5.c
new file mode 100644
index 00000000000000..04849382a58085
--- /dev/null
+++ b/fs/nls/nls_big5.c
@@ -0,0 +1,63 @@
+/*
+ * linux/fs/nls_big5.c
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static struct nls_table *p_nls;
+
+static struct nls_table table = {
+	"big5",
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	THIS_MODULE,
+};
+
+static int __init init_nls_big5(void)
+{
+	p_nls = load_nls("cp950");
+
+	if (p_nls) {
+		table.uni2char = p_nls->uni2char;
+		table.char2uni = p_nls->char2uni;
+		table.charset2upper = p_nls->charset2upper;
+		table.charset2lower = p_nls->charset2lower;
+		return register_nls(&table);
+	}
+
+	return -EINVAL;
+}
+
+static void __exit exit_nls_big5(void)
+{
+	unregister_nls(&table);
+	unload_nls(p_nls);
+}
+
+module_init(init_nls_big5)
+module_exit(exit_nls_big5)
+MODULE_LICENSE("Dual BSD/GPL");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ *
+---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
diff --git a/fs/nls/nls_cp1250.c b/fs/nls/nls_cp1250.c
new file mode 100644
index 00000000000000..95a977f68b99d7
--- /dev/null
+++ b/fs/nls/nls_cp1250.c
@@ -0,0 +1,365 @@
+/*
+ * linux/fs/nls_cp1250.c
+ *
+ * Charset cp1250 translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003, 
+	0x0004, 0x0005, 0x0006, 0x0007, 
+	0x0008, 0x0009, 0x000a, 0x000b, 
+	0x000c, 0x000d, 0x000e, 0x000f, 
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013, 
+	0x0014, 0x0015, 0x0016, 0x0017, 
+	0x0018, 0x0019, 0x001a, 0x001b, 
+	0x001c, 0x001d, 0x001e, 0x001f, 
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023, 
+	0x0024, 0x0025, 0x0026, 0x0027, 
+	0x0028, 0x0029, 0x002a, 0x002b, 
+	0x002c, 0x002d, 0x002e, 0x002f, 
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033, 
+	0x0034, 0x0035, 0x0036, 0x0037, 
+	0x0038, 0x0039, 0x003a, 0x003b, 
+	0x003c, 0x003d, 0x003e, 0x003f, 
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043, 
+	0x0044, 0x0045, 0x0046, 0x0047, 
+	0x0048, 0x0049, 0x004a, 0x004b, 
+	0x004c, 0x004d, 0x004e, 0x004f, 
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053, 
+	0x0054, 0x0055, 0x0056, 0x0057, 
+	0x0058, 0x0059, 0x005a, 0x005b, 
+	0x005c, 0x005d, 0x005e, 0x005f, 
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063, 
+	0x0064, 0x0065, 0x0066, 0x0067, 
+	0x0068, 0x0069, 0x006a, 0x006b, 
+	0x006c, 0x006d, 0x006e, 0x006f, 
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073, 
+	0x0074, 0x0075, 0x0076, 0x0077, 
+	0x0078, 0x0079, 0x007a, 0x007b, 
+	0x007c, 0x007d, 0x007e, 0x007f, 
+	/* 0x80*/
+	0x20ac, 0x0000, 0x201a, 0x0000, 
+	0x201e, 0x2026, 0x2020, 0x2021, 
+	0x0000, 0x2030, 0x0160, 0x2039, 
+	0x015a, 0x0164, 0x017d, 0x0179, 
+	/* 0x90*/
+	0x0000, 0x2018, 0x2019, 0x201c, 
+	0x201d, 0x2022, 0x2013, 0x2014, 
+	0x0000, 0x2122, 0x0161, 0x203a, 
+	0x015b, 0x0165, 0x017e, 0x017a, 
+	/* 0xa0*/
+	0x00a0, 0x02c7, 0x02d8, 0x0141, 
+	0x00a4, 0x0104, 0x00a6, 0x00a7, 
+	0x00a8, 0x00a9, 0x015e, 0x00ab, 
+	0x00ac, 0x00ad, 0x00ae, 0x017b, 
+	/* 0xb0*/
+	0x00b0, 0x00b1, 0x02db, 0x0142, 
+	0x00b4, 0x00b5, 0x00b6, 0x00b7, 
+	0x00b8, 0x0105, 0x015f, 0x00bb, 
+	0x013d, 0x02dd, 0x013e, 0x017c, 
+	/* 0xc0*/
+	0x0154, 0x00c1, 0x00c2, 0x0102, 
+	0x00c4, 0x0139, 0x0106, 0x00c7, 
+	0x010c, 0x00c9, 0x0118, 0x00cb, 
+	0x011a, 0x00cd, 0x00ce, 0x010e, 
+	/* 0xd0*/
+	0x0110, 0x0143, 0x0147, 0x00d3, 
+	0x00d4, 0x0150, 0x00d6, 0x00d7, 
+	0x0158, 0x016e, 0x00da, 0x0170, 
+	0x00dc, 0x00dd, 0x0162, 0x00df, 
+	/* 0xe0*/
+	0x0155, 0x00e1, 0x00e2, 0x0103, 
+	0x00e4, 0x013a, 0x0107, 0x00e7, 
+	0x010d, 0x00e9, 0x0119, 0x00eb, 
+	0x011b, 0x00ed, 0x00ee, 0x010f, 
+	/* 0xf0*/
+	0x0111, 0x0144, 0x0148, 0x00f3, 
+	0x00f4, 0x0151, 0x00f6, 0x00f7, 
+	0x0159, 0x016f, 0x00fa, 0x0171, 
+	0x00fc, 0x00fd, 0x0163, 0x02d9, 
+	};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0x00, 0x00, 0x00, 0xa4, 0x00, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0x00, 0xab, 0xac, 0xad, 0xae, 0x00, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0x00, 0x00, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0x00, 0x00, 0xbb, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+	0x00, 0xc1, 0xc2, 0x00, 0xc4, 0x00, 0x00, 0xc7, /* 0xc0-0xc7 */
+	0x00, 0xc9, 0x00, 0xcb, 0x00, 0xcd, 0xce, 0x00, /* 0xc8-0xcf */
+	0x00, 0x00, 0x00, 0xd3, 0xd4, 0x00, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0x00, 0x00, 0xda, 0x00, 0xdc, 0xdd, 0x00, 0xdf, /* 0xd8-0xdf */
+	0x00, 0xe1, 0xe2, 0x00, 0xe4, 0x00, 0x00, 0xe7, /* 0xe0-0xe7 */
+	0x00, 0xe9, 0x00, 0xeb, 0x00, 0xed, 0xee, 0x00, /* 0xe8-0xef */
+	0x00, 0x00, 0x00, 0xf3, 0xf4, 0x00, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0x00, 0x00, 0xfa, 0x00, 0xfc, 0xfd, 0x00, 0x00, /* 0xf8-0xff */
+	};
+
+static unsigned char page01[256] = {
+	0x00, 0x00, 0xc3, 0xe3, 0xa5, 0xb9, 0xc6, 0xe6, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xc8, 0xe8, 0xcf, 0xef, /* 0x08-0x0f */
+	0xd0, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0xca, 0xea, 0xcc, 0xec, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0xc5, 0xe5, 0x00, 0x00, 0xbc, 0xbe, 0x00, /* 0x38-0x3f */
+	0x00, 0xa3, 0xb3, 0xd1, 0xf1, 0x00, 0x00, 0xd2, /* 0x40-0x47 */
+	0xf2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0xd5, 0xf5, 0x00, 0x00, 0xc0, 0xe0, 0x00, 0x00, /* 0x50-0x57 */
+	0xd8, 0xf8, 0x8c, 0x9c, 0x00, 0x00, 0xaa, 0xba, /* 0x58-0x5f */
+	0x8a, 0x9a, 0xde, 0xfe, 0x8d, 0x9d, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xd9, 0xf9, /* 0x68-0x6f */
+	0xdb, 0xfb, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x8f, 0x9f, 0xaf, 0xbf, 0x8e, 0x9e, 0x00, /* 0x78-0x7f */
+
+	};
+
+static unsigned char page02[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa1, /* 0xc0-0xc7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+	0xa2, 0xff, 0x00, 0xb2, 0x00, 0xbd, 0x00, 0x00, /* 0xd8-0xdf */
+	};
+
+static unsigned char page20[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x96, 0x97, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x91, 0x92, 0x82, 0x00, 0x93, 0x94, 0x84, 0x00, /* 0x18-0x1f */
+	0x86, 0x87, 0x95, 0x00, 0x00, 0x00, 0x85, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x89, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x8b, 0x9b, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+	0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+	};
+
+static unsigned char page21[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x99, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	};
+
+static unsigned char *page_uni2charset[256] = {
+	page00,	page01,	page02,	NULL,	NULL,	NULL,	NULL,	NULL,
+	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,
+	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,
+	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,
+	page20,	page21,	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,
+	};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x00, 0x82, 0x00, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x00, 0x89, 0x9a, 0x8b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x88-0x8f */
+	0x00, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x00, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xb3, 0xa4, 0xb9, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xba, 0xab, 0xac, 0xad, 0xae, 0xbf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbe, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xc0-0xc7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xc8-0xcf */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xd7, /* 0xd0-0xd7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+	};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x00, 0x82, 0x00, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x00, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x00, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x00, 0x99, 0x8a, 0x9b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xa3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xa5, 0xaa, 0xbb, 0xbc, 0xbd, 0xbc, 0xaf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0x00, /* 0xd8-0xdf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xe0-0xe7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xe8-0xef */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xf7, /* 0xf0-0xf7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xff, /* 0xf8-0xff */
+	};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+        unsigned char *uni2charset;
+        unsigned char cl = uni & 0x00ff;
+        unsigned char ch = (uni & 0xff00) >> 8;
+
+        if (boundlen <= 0)
+                return -ENAMETOOLONG;
+
+        uni2charset = page_uni2charset[ch];
+        if (uni2charset && uni2charset[cl])
+                out[0] = uni2charset[cl];
+        else
+                return -EINVAL;
+        return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+        *uni = charset2uni[*rawstring];
+        if (*uni == 0x0000)
+                return -EINVAL;
+        return 1;
+}
+
+static struct nls_table table = {
+        "cp1250",
+        uni2char,
+        char2uni,
+        charset2lower,
+        charset2upper,
+        THIS_MODULE,
+};
+
+static int __init init_nls_cp1250(void)
+{
+        return register_nls(&table);
+}
+static void __exit exit_nls_cp1250(void)
+{
+        unregister_nls(&table);
+}
+
+module_init(init_nls_cp1250)
+module_exit(exit_nls_cp1250)
+
+MODULE_LICENSE("Dual BSD/GPL");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
+
diff --git a/fs/nls/nls_cp1251.c b/fs/nls/nls_cp1251.c
new file mode 100644
index 00000000000000..e432312e03a3d2
--- /dev/null
+++ b/fs/nls/nls_cp1251.c
@@ -0,0 +1,318 @@
+/*
+ * linux/fs/nls_cp1251.c
+ *
+ * Charset cp1251 translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003, 
+	0x0004, 0x0005, 0x0006, 0x0007, 
+	0x0008, 0x0009, 0x000a, 0x000b, 
+	0x000c, 0x000d, 0x000e, 0x000f, 
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013, 
+	0x0014, 0x0015, 0x0016, 0x0017, 
+	0x0018, 0x0019, 0x001a, 0x001b, 
+	0x001c, 0x001d, 0x001e, 0x001f, 
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023, 
+	0x0024, 0x0025, 0x0026, 0x0027, 
+	0x0028, 0x0029, 0x002a, 0x002b, 
+	0x002c, 0x002d, 0x002e, 0x002f, 
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033, 
+	0x0034, 0x0035, 0x0036, 0x0037, 
+	0x0038, 0x0039, 0x003a, 0x003b, 
+	0x003c, 0x003d, 0x003e, 0x003f, 
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043, 
+	0x0044, 0x0045, 0x0046, 0x0047, 
+	0x0048, 0x0049, 0x004a, 0x004b, 
+	0x004c, 0x004d, 0x004e, 0x004f, 
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053, 
+	0x0054, 0x0055, 0x0056, 0x0057, 
+	0x0058, 0x0059, 0x005a, 0x005b, 
+	0x005c, 0x005d, 0x005e, 0x005f, 
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063, 
+	0x0064, 0x0065, 0x0066, 0x0067, 
+	0x0068, 0x0069, 0x006a, 0x006b, 
+	0x006c, 0x006d, 0x006e, 0x006f, 
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073, 
+	0x0074, 0x0075, 0x0076, 0x0077, 
+	0x0078, 0x0079, 0x007a, 0x007b, 
+	0x007c, 0x007d, 0x007e, 0x007f, 
+	/* 0x80*/
+	0x0402, 0x0403, 0x201a, 0x0453, 
+	0x201e, 0x2026, 0x2020, 0x2021, 
+	0x20ac, 0x2030, 0x0409, 0x2039, 
+	0x040a, 0x040c, 0x040b, 0x040f, 
+	/* 0x90*/
+	0x0452, 0x2018, 0x2019, 0x201c, 
+	0x201d, 0x2022, 0x2013, 0x2014, 
+	0x0000, 0x2122, 0x0459, 0x203a, 
+	0x045a, 0x045c, 0x045b, 0x045f, 
+	/* 0xa0*/
+	0x00a0, 0x040e, 0x045e, 0x0408, 
+	0x00a4, 0x0490, 0x00a6, 0x00a7, 
+	0x0401, 0x00a9, 0x0404, 0x00ab, 
+	0x00ac, 0x00ad, 0x00ae, 0x0407, 
+	/* 0xb0*/
+	0x00b0, 0x00b1, 0x0406, 0x0456, 
+	0x0491, 0x00b5, 0x00b6, 0x00b7, 
+	0x0451, 0x2116, 0x0454, 0x00bb, 
+	0x0458, 0x0405, 0x0455, 0x0457, 
+	/* 0xc0*/
+	0x0410, 0x0411, 0x0412, 0x0413, 
+	0x0414, 0x0415, 0x0416, 0x0417, 
+	0x0418, 0x0419, 0x041a, 0x041b, 
+	0x041c, 0x041d, 0x041e, 0x041f, 
+	/* 0xd0*/
+	0x0420, 0x0421, 0x0422, 0x0423, 
+	0x0424, 0x0425, 0x0426, 0x0427, 
+	0x0428, 0x0429, 0x042a, 0x042b, 
+	0x042c, 0x042d, 0x042e, 0x042f, 
+	/* 0xe0*/
+	0x0430, 0x0431, 0x0432, 0x0433, 
+	0x0434, 0x0435, 0x0436, 0x0437, 
+	0x0438, 0x0439, 0x043a, 0x043b, 
+	0x043c, 0x043d, 0x043e, 0x043f, 
+	/* 0xf0*/
+	0x0440, 0x0441, 0x0442, 0x0443, 
+	0x0444, 0x0445, 0x0446, 0x0447, 
+	0x0448, 0x0449, 0x044a, 0x044b, 
+	0x044c, 0x044d, 0x044e, 0x044f, 
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0x00, 0x00, 0x00, 0xa4, 0x00, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0x00, 0xa9, 0x00, 0xab, 0xac, 0xad, 0xae, 0x00, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0x00, 0x00, 0x00, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0xbb, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+	0x00, 0x00, 0x00, 0xbb, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+	0x00, 0x00, 0x00, 0xbb, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+	0x00, 0x00, 0x00, 0xbb, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+	0x00, 0x00, 0x00, 0xbb, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+	0x00, 0x00, 0x00, 0xbb, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+	0x00, 0x00, 0x00, 0xbb, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+	0x00, 0x00, 0x00, 0xbb, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+	0x00, 0x00, 0x00, 0xbb, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static unsigned char page04[256] = {
+	0x00, 0xa8, 0x80, 0x81, 0xaa, 0xbd, 0xb2, 0xaf, /* 0x00-0x07 */
+	0xa3, 0x8a, 0x8c, 0x8e, 0x8d, 0x00, 0xa1, 0x8f, /* 0x08-0x0f */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0x10-0x17 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0x18-0x1f */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0x20-0x27 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0x28-0x2f */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0x30-0x37 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0x38-0x3f */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0x40-0x47 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0x48-0x4f */
+	0x00, 0xb8, 0x90, 0x83, 0xba, 0xbe, 0xb3, 0xbf, /* 0x50-0x57 */
+	0xbc, 0x9a, 0x9c, 0x9e, 0x9d, 0x00, 0xa2, 0x9f, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0xa5, 0xb4, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+};
+
+static unsigned char page20[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x96, 0x97, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x91, 0x92, 0x82, 0x00, 0x93, 0x94, 0x84, 0x00, /* 0x18-0x1f */
+	0x86, 0x87, 0x95, 0x00, 0x00, 0x00, 0x85, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x89, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x8b, 0x9b, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+};
+
+static unsigned char page21[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb9, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x99, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, NULL,   NULL,   NULL,   page04, NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	page20, page21, NULL,	NULL,   NULL,   NULL,   NULL,   NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+	0x90, 0x83, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x9a, 0x8b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x88-0x8f */
+	0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x98-0x9f */
+	0xa0, 0xa2, 0xa2, 0xbc, 0xa4, 0xb4, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xb8, 0xa9, 0xba, 0xab, 0xac, 0xad, 0xae, 0xbf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb3, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbe, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xc0-0xc7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xc8-0xcf */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xd0-0xd7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+	0x80, 0x81, 0x82, 0x81, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x80, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x98, 0x99, 0x8a, 0x9b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa1, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb2, 0xa5, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xa8, 0xb9, 0xaa, 0xbb, 0xa3, 0xbd, 0xbd, 0xaf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xe0-0xe7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xe8-0xef */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xf0-0xf7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"cp1251",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_cp1251(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_cp1251(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_cp1251)
+module_exit(exit_nls_cp1251)
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/fs/nls/nls_cp1255.c b/fs/nls/nls_cp1255.c
new file mode 100644
index 00000000000000..d6751422ecfc41
--- /dev/null
+++ b/fs/nls/nls_cp1255.c
@@ -0,0 +1,399 @@
+/*
+ * linux/fs/nls_cp1255.c
+ *
+ * Charset cp1255 translation tables.
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x20ac, 0x0000, 0x201a, 0x0192,
+	0x201e, 0x2026, 0x2020, 0x2021,
+	0x02c6, 0x2030, 0x0000, 0x2039,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	/* 0x90*/
+	0x0000, 0x2018, 0x2019, 0x201c,
+	0x201d, 0x2022, 0x2013, 0x2014,
+	0x02dc, 0x2122, 0x0000, 0x203a,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	/* 0xa0*/
+	0x00a0, 0x00a1, 0x00a2, 0x00a3,
+	0x20aa, 0x00a5, 0x00a6, 0x00a7,
+	0x00a8, 0x00a9, 0x00d7, 0x00ab,
+	0x00ac, 0x00ad, 0x00ae, 0x203e,
+	/* 0xb0*/
+	0x00b0, 0x00b1, 0x00b2, 0x00b3,
+	0x00b4, 0x00b5, 0x00b6, 0x00b7,
+	0x00b8, 0x00b9, 0x00f7, 0x00bb,
+	0x00bc, 0x00bd, 0x00be, 0x00bf,
+	/* 0xc0*/
+	0x05b0, 0x05b1, 0x05b2, 0x05b3,
+	0x05b4, 0x05b5, 0x05b6, 0x05b7,
+	0x05b8, 0x05b9, 0x0000, 0x05bb,
+	0x05bc, 0x05bd, 0x05be, 0x05bf,
+	/* 0xd0*/
+	0x05c0, 0x05c1, 0x05c2, 0x05c3,
+	0x05f0, 0x05f1, 0x05f2, 0x05f3,
+	0x05f4, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x2017,
+	/* 0xe0*/
+	0x05d0, 0x05d1, 0x05d2, 0x05d3,
+	0x05d4, 0x05d5, 0x05d6, 0x05d7,
+	0x05d8, 0x05d9, 0x05da, 0x05db,
+	0x05dc, 0x05dd, 0x05de, 0x05df,
+	/* 0xf0*/
+	0x05e0, 0x05e1, 0x05e2, 0x05e3,
+	0x05e4, 0x05e5, 0x05e6, 0x05e7,
+	0x05e8, 0x05e9, 0x05ea, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0x00, 0xa2, 0xa3, 0x00, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0x00, 0xab, 0xac, 0xad, 0xae, 0x00, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0x00, 0xbb, 0xbc, 0xbd, 0xbe, 0x00, /* 0xb8-0xbf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xaa, /* 0xd0-0xd7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xba, /* 0xf0-0xf7 */
+};
+
+static unsigned char page01[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x83, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+};
+
+static unsigned char page02[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0x00, /* 0xc0-0xc7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+	0x00, 0x00, 0x00, 0x00, 0x98, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+};
+
+static unsigned char page05[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xb0-0xb7 */
+	0xc8, 0xc9, 0x00, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xb8-0xbf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xd0-0xd7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xd8-0xdf */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xe0-0xe7 */
+	0xf8, 0xf9, 0xfa, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+	0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+};
+
+static unsigned char page20[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfd, 0xfe, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x96, 0x97, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x91, 0x92, 0x82, 0x00, 0x93, 0x94, 0x84, 0x00, /* 0x18-0x1f */
+	0x86, 0x87, 0x95, 0x00, 0x00, 0x00, 0x85, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x89, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x8b, 0x9b, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+	0x00, 0x00, 0xa4, 0x00, 0x80, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+};
+
+static unsigned char page21[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb9, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x99, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, page01, page02, NULL,   NULL,   page05, NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	page20, page21, NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0x00, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0x00, /* 0xb8-0xbf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0x00, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0x00, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0x00, /* 0xb8-0xbf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"cp1255",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_cp1255(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_cp1255(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_cp1255)
+module_exit(exit_nls_cp1255)
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/fs/nls/nls_cp437.c b/fs/nls/nls_cp437.c
new file mode 100644
index 00000000000000..bf433fee369c49
--- /dev/null
+++ b/fs/nls/nls_cp437.c
@@ -0,0 +1,404 @@
+/*
+ * linux/fs/nls_cp437.c
+ *
+ * Charset cp437 translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x00c7, 0x00fc, 0x00e9, 0x00e2,
+	0x00e4, 0x00e0, 0x00e5, 0x00e7,
+	0x00ea, 0x00eb, 0x00e8, 0x00ef,
+	0x00ee, 0x00ec, 0x00c4, 0x00c5,
+	/* 0x90*/
+	0x00c9, 0x00e6, 0x00c6, 0x00f4,
+	0x00f6, 0x00f2, 0x00fb, 0x00f9,
+	0x00ff, 0x00d6, 0x00dc, 0x00a2,
+	0x00a3, 0x00a5, 0x20a7, 0x0192,
+	/* 0xa0*/
+	0x00e1, 0x00ed, 0x00f3, 0x00fa,
+	0x00f1, 0x00d1, 0x00aa, 0x00ba,
+	0x00bf, 0x2310, 0x00ac, 0x00bd,
+	0x00bc, 0x00a1, 0x00ab, 0x00bb,
+	/* 0xb0*/
+	0x2591, 0x2592, 0x2593, 0x2502,
+	0x2524, 0x2561, 0x2562, 0x2556,
+	0x2555, 0x2563, 0x2551, 0x2557,
+	0x255d, 0x255c, 0x255b, 0x2510,
+	/* 0xc0*/
+	0x2514, 0x2534, 0x252c, 0x251c,
+	0x2500, 0x253c, 0x255e, 0x255f,
+	0x255a, 0x2554, 0x2569, 0x2566,
+	0x2560, 0x2550, 0x256c, 0x2567,
+	/* 0xd0*/
+	0x2568, 0x2564, 0x2565, 0x2559,
+	0x2558, 0x2552, 0x2553, 0x256b,
+	0x256a, 0x2518, 0x250c, 0x2588,
+	0x2584, 0x258c, 0x2590, 0x2580,
+	/* 0xe0*/
+	0x03b1, 0x00df, 0x0393, 0x03c0,
+	0x03a3, 0x03c3, 0x00b5, 0x03c4,
+	0x03a6, 0x0398, 0x03a9, 0x03b4,
+	0x221e, 0x03c6, 0x03b5, 0x2229,
+	/* 0xf0*/
+	0x2261, 0x00b1, 0x2265, 0x2264,
+	0x2320, 0x2321, 0x00f7, 0x2248,
+	0x00b0, 0x2219, 0x00b7, 0x221a,
+	0x207f, 0x00b2, 0x25a0, 0x00a0,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xff, 0xad, 0x9b, 0x9c, 0x00, 0x9d, 0x00, 0x00, /* 0xa0-0xa7 */
+	0x00, 0x00, 0xa6, 0xae, 0xaa, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+	0xf8, 0xf1, 0xfd, 0x00, 0x00, 0xe6, 0x00, 0xfa, /* 0xb0-0xb7 */
+	0x00, 0x00, 0xa7, 0xaf, 0xac, 0xab, 0x00, 0xa8, /* 0xb8-0xbf */
+	0x00, 0x00, 0x00, 0x00, 0x8e, 0x8f, 0x92, 0x80, /* 0xc0-0xc7 */
+	0x00, 0x90, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+	0x00, 0xa5, 0x00, 0x00, 0x00, 0x00, 0x99, 0x00, /* 0xd0-0xd7 */
+	0x00, 0x00, 0x00, 0x00, 0x9a, 0x00, 0x00, 0xe1, /* 0xd8-0xdf */
+	0x85, 0xa0, 0x83, 0x00, 0x84, 0x86, 0x91, 0x87, /* 0xe0-0xe7 */
+	0x8a, 0x82, 0x88, 0x89, 0x8d, 0xa1, 0x8c, 0x8b, /* 0xe8-0xef */
+	0x00, 0xa4, 0x95, 0xa2, 0x93, 0x00, 0x94, 0xf6, /* 0xf0-0xf7 */
+	0x00, 0x97, 0xa3, 0x96, 0x81, 0x00, 0x00, 0x98, /* 0xf8-0xff */
+};
+
+static unsigned char page01[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x9f, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+};
+
+static unsigned char page03[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0xe2, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0xe9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0xe4, 0x00, 0x00, 0xe8, 0x00, /* 0xa0-0xa7 */
+	0x00, 0xea, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+	0x00, 0xe0, 0x00, 0x00, 0xeb, 0xee, 0x00, 0x00, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+	0xe3, 0x00, 0x00, 0xe5, 0xe7, 0x00, 0xed, 0x00, /* 0xc0-0xc7 */
+};
+
+static unsigned char page20[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9e, /* 0xa0-0xa7 */
+};
+
+static unsigned char page22[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0xf9, 0xfb, 0x00, 0x00, 0x00, 0xec, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0xef, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0xf7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0xf0, 0x00, 0x00, 0xf3, 0xf2, 0x00, 0x00, /* 0x60-0x67 */
+};
+
+static unsigned char page23[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0xa9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0xf4, 0xf5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+};
+
+static unsigned char page25[256] = {
+	0xc4, 0x00, 0xb3, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xda, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0xbf, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0xd9, 0x00, 0x00, 0x00, 0xc3, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0xb4, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xc2, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0xc1, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xc5, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0xcd, 0xba, 0xd5, 0xd6, 0xc9, 0xb8, 0xb7, 0xbb, /* 0x50-0x57 */
+	0xd4, 0xd3, 0xc8, 0xbe, 0xbd, 0xbc, 0xc6, 0xc7, /* 0x58-0x5f */
+	0xcc, 0xb5, 0xb6, 0xb9, 0xd1, 0xd2, 0xcb, 0xcf, /* 0x60-0x67 */
+	0xd0, 0xca, 0xd8, 0xd7, 0xce, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0xdf, 0x00, 0x00, 0x00, 0xdc, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0xdb, 0x00, 0x00, 0x00, 0xdd, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0xde, 0xb0, 0xb1, 0xb2, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, page01, NULL,   page03, NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	page20, NULL,   page22, page23, NULL,   page25, NULL,   NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x87, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x84, 0x86, /* 0x88-0x8f */
+	0x82, 0x91, 0x91, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x98, 0x94, 0x81, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa4, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0x00, 0xe3, 0xe5, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xed, 0x00, 0x00, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x9a, 0x90, 0x00, 0x8e, 0x00, 0x8f, 0x80, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x92, 0x92, 0x00, 0x99, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0x00, 0xa5, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0x00, 0xe1, 0xe2, 0x00, 0xe4, 0xe4, 0x00, 0x00, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0x00, 0xec, 0xe8, 0x00, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"cp437",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_cp437(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_cp437(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_cp437)
+module_exit(exit_nls_cp437)
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/fs/nls/nls_cp737.c b/fs/nls/nls_cp737.c
new file mode 100644
index 00000000000000..7ef8871b7d5250
--- /dev/null
+++ b/fs/nls/nls_cp737.c
@@ -0,0 +1,367 @@
+/*
+ * linux/fs/nls_cp737.c
+ *
+ * Charset cp737 translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x0391, 0x0392, 0x0393, 0x0394,
+	0x0395, 0x0396, 0x0397, 0x0398,
+	0x0399, 0x039a, 0x039b, 0x039c,
+	0x039d, 0x039e, 0x039f, 0x03a0,
+	/* 0x90*/
+	0x03a1, 0x03a3, 0x03a4, 0x03a5,
+	0x03a6, 0x03a7, 0x03a8, 0x03a9,
+	0x03b1, 0x03b2, 0x03b3, 0x03b4,
+	0x03b5, 0x03b6, 0x03b7, 0x03b8,
+	/* 0xa0*/
+	0x03b9, 0x03ba, 0x03bb, 0x03bc,
+	0x03bd, 0x03be, 0x03bf, 0x03c0,
+	0x03c1, 0x03c3, 0x03c2, 0x03c4,
+	0x03c5, 0x03c6, 0x03c7, 0x03c8,
+	/* 0xb0*/
+	0x2591, 0x2592, 0x2593, 0x2502,
+	0x2524, 0x2561, 0x2562, 0x2556,
+	0x2555, 0x2563, 0x2551, 0x2557,
+	0x255d, 0x255c, 0x255b, 0x2510,
+	/* 0xc0*/
+	0x2514, 0x2534, 0x252c, 0x251c,
+	0x2500, 0x253c, 0x255e, 0x255f,
+	0x255a, 0x2554, 0x2569, 0x2566,
+	0x2560, 0x2550, 0x256c, 0x2567,
+	/* 0xd0*/
+	0x2568, 0x2564, 0x2565, 0x2559,
+	0x2558, 0x2552, 0x2553, 0x256b,
+	0x256a, 0x2518, 0x250c, 0x2588,
+	0x2584, 0x258c, 0x2590, 0x2580,
+	/* 0xe0*/
+	0x03c9, 0x03ac, 0x03ad, 0x03ae,
+	0x03ca, 0x03af, 0x03cc, 0x03cd,
+	0x03cb, 0x03ce, 0x0386, 0x0388,
+	0x0389, 0x038a, 0x038c, 0x038e,
+	/* 0xf0*/
+	0x038f, 0x00b1, 0x2265, 0x2264,
+	0x03aa, 0x03ab, 0x00f7, 0x2248,
+	0x00b0, 0x2219, 0x00b7, 0x221a,
+	0x207f, 0x00b2, 0x25a0, 0x00a0,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+	0xf8, 0xf1, 0xfd, 0x00, 0x00, 0x00, 0x00, 0xfa, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf6, /* 0xf0-0xf7 */
+};
+
+static unsigned char page03[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xea, 0x00, /* 0x80-0x87 */
+	0xeb, 0xec, 0xed, 0x00, 0xee, 0x00, 0xef, 0xf0, /* 0x88-0x8f */
+	0x00, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, /* 0x90-0x97 */
+	0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, /* 0x98-0x9f */
+	0x8f, 0x90, 0x00, 0x91, 0x92, 0x93, 0x94, 0x95, /* 0xa0-0xa7 */
+	0x96, 0x97, 0xf4, 0xf5, 0xe1, 0xe2, 0xe3, 0xe5, /* 0xa8-0xaf */
+	0x00, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, /* 0xb0-0xb7 */
+	0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, /* 0xb8-0xbf */
+	0xa7, 0xa8, 0xaa, 0xa9, 0xab, 0xac, 0xad, 0xae, /* 0xc0-0xc7 */
+	0xaf, 0xe0, 0xe4, 0xe8, 0xe6, 0xe7, 0xe9, 0x00, /* 0xc8-0xcf */
+};
+
+static unsigned char page20[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, /* 0x78-0x7f */
+};
+
+static unsigned char page22[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0xf9, 0xfb, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0xf7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0xf3, 0xf2, 0x00, 0x00, /* 0x60-0x67 */
+};
+
+static unsigned char page25[256] = {
+	0xc4, 0x00, 0xb3, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xda, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0xbf, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0xd9, 0x00, 0x00, 0x00, 0xc3, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0xb4, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xc2, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0xc1, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xc5, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0xcd, 0xba, 0xd5, 0xd6, 0xc9, 0xb8, 0xb7, 0xbb, /* 0x50-0x57 */
+	0xd4, 0xd3, 0xc8, 0xbe, 0xbd, 0xbc, 0xc6, 0xc7, /* 0x58-0x5f */
+	0xcc, 0xb5, 0xb6, 0xb9, 0xd1, 0xd2, 0xcb, 0xcf, /* 0x60-0x67 */
+	0xd0, 0xca, 0xd8, 0xd7, 0xce, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0xdf, 0x00, 0x00, 0x00, 0xdc, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0xdb, 0x00, 0x00, 0x00, 0xdd, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0xde, 0xb0, 0xb1, 0xb2, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, NULL,   NULL,   page03, NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	page20, NULL,   page22, NULL,   NULL,   page25, NULL,   NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x80-0x87 */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0x88-0x8f */
+	0xa8, 0xa9, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xe0, /* 0x90-0x97 */
+	0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xe1, 0xe2, 0xe3, 0xe5, 0xe6, 0xe7, /* 0xe8-0xef */
+	0xe9, 0xf1, 0xf2, 0xf3, 0xe4, 0xe8, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x98-0x9f */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0xa0-0xa7 */
+	0x90, 0x91, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0x97, 0xea, 0xeb, 0xec, 0xf4, 0xed, 0xee, 0xef, /* 0xe0-0xe7 */
+	0xf5, 0xf0, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"cp737",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_cp737(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_cp737(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_cp737)
+module_exit(exit_nls_cp737)
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/fs/nls/nls_cp775.c b/fs/nls/nls_cp775.c
new file mode 100644
index 00000000000000..f1742f12497b03
--- /dev/null
+++ b/fs/nls/nls_cp775.c
@@ -0,0 +1,336 @@
+/*
+ * linux/fs/nls_cp775.c
+ *
+ * Charset cp775 translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x0106, 0x00fc, 0x00e9, 0x0101,
+	0x00e4, 0x0123, 0x00e5, 0x0107,
+	0x0142, 0x0113, 0x0156, 0x0157,
+	0x012b, 0x0179, 0x00c4, 0x00c5,
+	/* 0x90*/
+	0x00c9, 0x00e6, 0x00c6, 0x014d,
+	0x00f6, 0x0122, 0x00a2, 0x015a,
+	0x015b, 0x00d6, 0x00dc, 0x00f8,
+	0x00a3, 0x00d8, 0x00d7, 0x00a4,
+	/* 0xa0*/
+	0x0100, 0x012a, 0x00f3, 0x017b,
+	0x017c, 0x017a, 0x201d, 0x00a6,
+	0x00a9, 0x00ae, 0x00ac, 0x00bd,
+	0x00bc, 0x0141, 0x00ab, 0x00bb,
+	/* 0xb0*/
+	0x2591, 0x2592, 0x2593, 0x2502,
+	0x2524, 0x0104, 0x010c, 0x0118,
+	0x0116, 0x2563, 0x2551, 0x2557,
+	0x255d, 0x012e, 0x0160, 0x2510,
+	/* 0xc0*/
+	0x2514, 0x2534, 0x252c, 0x251c,
+	0x2500, 0x253c, 0x0172, 0x016a,
+	0x255a, 0x2554, 0x2569, 0x2566,
+	0x2560, 0x2550, 0x256c, 0x017d,
+	/* 0xd0*/
+	0x0105, 0x010d, 0x0119, 0x0117,
+	0x012f, 0x0161, 0x0173, 0x016b,
+	0x017e, 0x2518, 0x250c, 0x2588,
+	0x2584, 0x258c, 0x2590, 0x2580,
+	/* 0xe0*/
+	0x00d3, 0x00df, 0x014c, 0x0143,
+	0x00f5, 0x00d5, 0x00b5, 0x0144,
+	0x0136, 0x0137, 0x013b, 0x013c,
+	0x0146, 0x0112, 0x0145, 0x2019,
+	/* 0xf0*/
+	0x00ad, 0x00b1, 0x201c, 0x00be,
+	0x00b6, 0x00a7, 0x00f7, 0x201e,
+	0x00b0, 0x2219, 0x00b7, 0x00b9,
+	0x00b3, 0x00b2, 0x25a0, 0x00a0,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xff, 0x00, 0x96, 0x9c, 0x9f, 0x00, 0xa7, 0xf5, /* 0xa0-0xa7 */
+	0x00, 0xa8, 0x00, 0xae, 0xaa, 0xf0, 0xa9, 0x00, /* 0xa8-0xaf */
+	0xf8, 0xf1, 0xfd, 0xfc, 0x00, 0xe6, 0xf4, 0xfa, /* 0xb0-0xb7 */
+	0x00, 0xfb, 0x00, 0xaf, 0xac, 0xab, 0xf3, 0x00, /* 0xb8-0xbf */
+	0x00, 0x00, 0x00, 0x00, 0x8e, 0x8f, 0x92, 0x00, /* 0xc0-0xc7 */
+	0x00, 0x90, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+	0x00, 0x00, 0x00, 0xe0, 0x00, 0xe5, 0x99, 0x9e, /* 0xd0-0xd7 */
+	0x9d, 0x00, 0x00, 0x00, 0x9a, 0x00, 0x00, 0xe1, /* 0xd8-0xdf */
+	0x00, 0x00, 0x00, 0x00, 0x84, 0x86, 0x91, 0x00, /* 0xe0-0xe7 */
+	0x00, 0x82, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+	0x00, 0x00, 0x00, 0xa2, 0x00, 0xe4, 0x94, 0xf6, /* 0xf0-0xf7 */
+	0x9b, 0x00, 0x00, 0x00, 0x81, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static unsigned char page01[256] = {
+	0xa0, 0x83, 0x00, 0x00, 0xb5, 0xd0, 0x80, 0x87, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xb6, 0xd1, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0xed, 0x89, 0x00, 0x00, 0xb8, 0xd3, /* 0x10-0x17 */
+	0xb7, 0xd2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x95, 0x85, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0xa1, 0x8c, 0x00, 0x00, 0xbd, 0xd4, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe8, 0xe9, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0xea, 0xeb, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0xad, 0x88, 0xe3, 0xe7, 0xee, 0xec, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0xe2, 0x93, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8a, 0x8b, /* 0x50-0x57 */
+	0x00, 0x00, 0x97, 0x98, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0xbe, 0xd5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0xc7, 0xd7, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0xc6, 0xd6, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x8d, 0xa5, 0xa3, 0xa4, 0xcf, 0xd8, 0x00, /* 0x78-0x7f */
+};
+
+static unsigned char page20[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0xef, 0x00, 0x00, 0xf2, 0xa6, 0xf7, 0x00, /* 0x18-0x1f */
+};
+
+static unsigned char page22[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0xf9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+};
+
+static unsigned char page25[256] = {
+	0xc4, 0x00, 0xb3, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xda, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0xbf, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0xd9, 0x00, 0x00, 0x00, 0xc3, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0xb4, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xc2, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0xc1, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xc5, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0xcd, 0xba, 0x00, 0x00, 0xc9, 0x00, 0x00, 0xbb, /* 0x50-0x57 */
+	0x00, 0x00, 0xc8, 0x00, 0x00, 0xbc, 0x00, 0x00, /* 0x58-0x5f */
+	0xcc, 0x00, 0x00, 0xb9, 0x00, 0x00, 0xcb, 0x00, /* 0x60-0x67 */
+	0x00, 0xca, 0x00, 0x00, 0xce, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0xdf, 0x00, 0x00, 0x00, 0xdc, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0xdb, 0x00, 0x00, 0x00, 0xdd, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0xde, 0xb0, 0xb1, 0xb2, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, page01, NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	page20, NULL,   page22, NULL,   NULL,   page25, NULL,   NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x87, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8b, 0x8b, 0x8c, 0xa5, 0x84, 0x86, /* 0x88-0x8f */
+	0x82, 0x91, 0x91, 0x93, 0x94, 0x85, 0x96, 0x98, /* 0x90-0x97 */
+	0x98, 0x94, 0x81, 0x9b, 0x9c, 0x9b, 0x9e, 0x9f, /* 0x98-0x9f */
+	0x83, 0x8c, 0xa2, 0xa4, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0x88, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xd0, 0xd1, 0xd2, /* 0xb0-0xb7 */
+	0xd3, 0xb9, 0xba, 0xbb, 0xbc, 0xd4, 0xd5, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xd6, 0xd7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xd8, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xa2, 0xe1, 0x93, 0xe7, 0xe4, 0xe4, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe9, 0xe9, 0xeb, 0xeb, 0xec, 0x89, 0xec, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x9a, 0x90, 0xa0, 0x8e, 0x95, 0x8f, 0x80, /* 0x80-0x87 */
+	0xad, 0xed, 0x8a, 0x8a, 0xa1, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x92, 0x92, 0xe2, 0x99, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x97, 0x99, 0x9a, 0x9d, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xe0, 0xa3, 0xa3, 0x8d, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xb5, 0xb6, 0xb7, 0xb8, 0xbd, 0xbe, 0xc6, 0xc7, /* 0xd0-0xd7 */
+	0xcf, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe5, 0xe5, 0x00, 0xe3, /* 0xe0-0xe7 */
+	0xe8, 0xe8, 0xea, 0xea, 0xee, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"cp775",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_cp775(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_cp775(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_cp775)
+module_exit(exit_nls_cp775)
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/fs/nls/nls_cp850.c b/fs/nls/nls_cp850.c
new file mode 100644
index 00000000000000..772e324daa5cc8
--- /dev/null
+++ b/fs/nls/nls_cp850.c
@@ -0,0 +1,332 @@
+/*
+ * linux/fs/nls_cp850.c
+ *
+ * Charset cp850 translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x00c7, 0x00fc, 0x00e9, 0x00e2,
+	0x00e4, 0x00e0, 0x00e5, 0x00e7,
+	0x00ea, 0x00eb, 0x00e8, 0x00ef,
+	0x00ee, 0x00ec, 0x00c4, 0x00c5,
+	/* 0x90*/
+	0x00c9, 0x00e6, 0x00c6, 0x00f4,
+	0x00f6, 0x00f2, 0x00fb, 0x00f9,
+	0x00ff, 0x00d6, 0x00dc, 0x00f8,
+	0x00a3, 0x00d8, 0x00d7, 0x0192,
+	/* 0xa0*/
+	0x00e1, 0x00ed, 0x00f3, 0x00fa,
+	0x00f1, 0x00d1, 0x00aa, 0x00ba,
+	0x00bf, 0x00ae, 0x00ac, 0x00bd,
+	0x00bc, 0x00a1, 0x00ab, 0x00bb,
+	/* 0xb0*/
+	0x2591, 0x2592, 0x2593, 0x2502,
+	0x2524, 0x00c1, 0x00c2, 0x00c0,
+	0x00a9, 0x2563, 0x2551, 0x2557,
+	0x255d, 0x00a2, 0x00a5, 0x2510,
+	/* 0xc0*/
+	0x2514, 0x2534, 0x252c, 0x251c,
+	0x2500, 0x253c, 0x00e3, 0x00c3,
+	0x255a, 0x2554, 0x2569, 0x2566,
+	0x2560, 0x2550, 0x256c, 0x00a4,
+	/* 0xd0*/
+	0x00f0, 0x00d0, 0x00ca, 0x00cb,
+	0x00c8, 0x0131, 0x00cd, 0x00ce,
+	0x00cf, 0x2518, 0x250c, 0x2588,
+	0x2584, 0x00a6, 0x00cc, 0x2580,
+	/* 0xe0*/
+	0x00d3, 0x00df, 0x00d4, 0x00d2,
+	0x00f5, 0x00d5, 0x00b5, 0x00fe,
+	0x00de, 0x00da, 0x00db, 0x00d9,
+	0x00fd, 0x00dd, 0x00af, 0x00b4,
+	/* 0xf0*/
+	0x00ad, 0x00b1, 0x2017, 0x00be,
+	0x00b6, 0x00a7, 0x00f7, 0x00b8,
+	0x00b0, 0x00a8, 0x00b7, 0x00b9,
+	0x00b3, 0x00b2, 0x25a0, 0x00a0,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xff, 0xad, 0xbd, 0x9c, 0xcf, 0xbe, 0xdd, 0xf5, /* 0xa0-0xa7 */
+	0xf9, 0xb8, 0xa6, 0xae, 0xaa, 0xf0, 0xa9, 0xee, /* 0xa8-0xaf */
+	0xf8, 0xf1, 0xfd, 0xfc, 0xef, 0xe6, 0xf4, 0xfa, /* 0xb0-0xb7 */
+	0xf7, 0xfb, 0xa7, 0xaf, 0xac, 0xab, 0xf3, 0xa8, /* 0xb8-0xbf */
+	0xb7, 0xb5, 0xb6, 0xc7, 0x8e, 0x8f, 0x92, 0x80, /* 0xc0-0xc7 */
+	0xd4, 0x90, 0xd2, 0xd3, 0xde, 0xd6, 0xd7, 0xd8, /* 0xc8-0xcf */
+	0xd1, 0xa5, 0xe3, 0xe0, 0xe2, 0xe5, 0x99, 0x9e, /* 0xd0-0xd7 */
+	0x9d, 0xeb, 0xe9, 0xea, 0x9a, 0xed, 0xe8, 0xe1, /* 0xd8-0xdf */
+	0x85, 0xa0, 0x83, 0xc6, 0x84, 0x86, 0x91, 0x87, /* 0xe0-0xe7 */
+	0x8a, 0x82, 0x88, 0x89, 0x8d, 0xa1, 0x8c, 0x8b, /* 0xe8-0xef */
+	0xd0, 0xa4, 0x95, 0xa2, 0x93, 0xe4, 0x94, 0xf6, /* 0xf0-0xf7 */
+	0x9b, 0x97, 0xa3, 0x96, 0x81, 0xec, 0xe7, 0x98, /* 0xf8-0xff */
+};
+
+static unsigned char page01[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0xd5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x9f, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+};
+
+static unsigned char page20[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf2, /* 0x10-0x17 */
+};
+
+static unsigned char page25[256] = {
+	0xc4, 0x00, 0xb3, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xda, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0xbf, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0xd9, 0x00, 0x00, 0x00, 0xc3, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0xb4, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xc2, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0xc1, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xc5, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0xcd, 0xba, 0x00, 0x00, 0xc9, 0x00, 0x00, 0xbb, /* 0x50-0x57 */
+	0x00, 0x00, 0xc8, 0x00, 0x00, 0xbc, 0x00, 0x00, /* 0x58-0x5f */
+	0xcc, 0x00, 0x00, 0xb9, 0x00, 0x00, 0xcb, 0x00, /* 0x60-0x67 */
+	0x00, 0xca, 0x00, 0x00, 0xce, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0xdf, 0x00, 0x00, 0x00, 0xdc, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0xdb, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0xb0, 0xb1, 0xb2, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, page01, NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	page20, NULL,   NULL,   NULL,   NULL,   page25, NULL,   NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x87, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x84, 0x86, /* 0x88-0x8f */
+	0x82, 0x91, 0x91, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x98, 0x94, 0x81, 0x9b, 0x9c, 0x9b, 0x9e, 0x9f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa4, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xa0, 0x83, 0x85, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc6, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd0, 0x88, 0x89, 0x8a, 0xd5, 0xa1, 0x8c, /* 0xd0-0xd7 */
+	0x8b, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0x8d, 0xdf, /* 0xd8-0xdf */
+	0xa2, 0xe1, 0x93, 0x95, 0xe4, 0xe4, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe7, 0xa3, 0x96, 0x97, 0xec, 0xec, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x9a, 0x90, 0xb6, 0x8e, 0xb7, 0x8f, 0x80, /* 0x80-0x87 */
+	0xd2, 0xd3, 0xd4, 0xd8, 0xd7, 0xde, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x92, 0x92, 0xe2, 0x99, 0xe3, 0xea, 0xeb, /* 0x90-0x97 */
+	0x00, 0x99, 0x9a, 0x9d, 0x9c, 0x9d, 0x9e, 0x00, /* 0x98-0x9f */
+	0xb5, 0xd6, 0xe0, 0xe9, 0xa5, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc7, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd1, 0xd1, 0xd2, 0xd3, 0xd4, 0x49, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe5, 0xe5, 0x00, 0xe8, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xed, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"cp850",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_cp850(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_cp850(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_cp850)
+module_exit(exit_nls_cp850)
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/fs/nls/nls_cp852.c b/fs/nls/nls_cp852.c
new file mode 100644
index 00000000000000..48366f26b3c802
--- /dev/null
+++ b/fs/nls/nls_cp852.c
@@ -0,0 +1,354 @@
+/*
+ * linux/fs/nls_cp852.c
+ *
+ * Charset cp852 translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x00c7, 0x00fc, 0x00e9, 0x00e2,
+	0x00e4, 0x016f, 0x0107, 0x00e7,
+	0x0142, 0x00eb, 0x0150, 0x0151,
+	0x00ee, 0x0179, 0x00c4, 0x0106,
+	/* 0x90*/
+	0x00c9, 0x0139, 0x013a, 0x00f4,
+	0x00f6, 0x013d, 0x013e, 0x015a,
+	0x015b, 0x00d6, 0x00dc, 0x0164,
+	0x0165, 0x0141, 0x00d7, 0x010d,
+	/* 0xa0*/
+	0x00e1, 0x00ed, 0x00f3, 0x00fa,
+	0x0104, 0x0105, 0x017d, 0x017e,
+	0x0118, 0x0119, 0x00ac, 0x017a,
+	0x010c, 0x015f, 0x00ab, 0x00bb,
+	/* 0xb0*/
+	0x2591, 0x2592, 0x2593, 0x2502,
+	0x2524, 0x00c1, 0x00c2, 0x011a,
+	0x015e, 0x2563, 0x2551, 0x2557,
+	0x255d, 0x017b, 0x017c, 0x2510,
+	/* 0xc0*/
+	0x2514, 0x2534, 0x252c, 0x251c,
+	0x2500, 0x253c, 0x0102, 0x0103,
+	0x255a, 0x2554, 0x2569, 0x2566,
+	0x2560, 0x2550, 0x256c, 0x00a4,
+	/* 0xd0*/
+	0x0111, 0x0110, 0x010e, 0x00cb,
+	0x010f, 0x0147, 0x00cd, 0x00ce,
+	0x011b, 0x2518, 0x250c, 0x2588,
+	0x2584, 0x0162, 0x016e, 0x2580,
+	/* 0xe0*/
+	0x00d3, 0x00df, 0x00d4, 0x0143,
+	0x0144, 0x0148, 0x0160, 0x0161,
+	0x0154, 0x00da, 0x0155, 0x0170,
+	0x00fd, 0x00dd, 0x0163, 0x00b4,
+	/* 0xf0*/
+	0x00ad, 0x02dd, 0x02db, 0x02c7,
+	0x02d8, 0x00a7, 0x00f7, 0x00b8,
+	0x00b0, 0x00a8, 0x02d9, 0x0171,
+	0x0158, 0x0159, 0x25a0, 0x00a0,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xff, 0x00, 0x00, 0x00, 0xcf, 0x00, 0x00, 0xf5, /* 0xa0-0xa7 */
+	0xf9, 0x00, 0x00, 0xae, 0xaa, 0xf0, 0x00, 0x00, /* 0xa8-0xaf */
+	0xf8, 0x00, 0x00, 0x00, 0xef, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+	0xf7, 0x00, 0x00, 0xaf, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+	0x00, 0xb5, 0xb6, 0x00, 0x8e, 0x00, 0x00, 0x80, /* 0xc0-0xc7 */
+	0x00, 0x90, 0x00, 0xd3, 0x00, 0xd6, 0xd7, 0x00, /* 0xc8-0xcf */
+	0x00, 0x00, 0x00, 0xe0, 0xe2, 0x00, 0x99, 0x9e, /* 0xd0-0xd7 */
+	0x00, 0x00, 0xe9, 0x00, 0x9a, 0xed, 0x00, 0xe1, /* 0xd8-0xdf */
+	0x00, 0xa0, 0x83, 0x00, 0x84, 0x00, 0x00, 0x87, /* 0xe0-0xe7 */
+	0x00, 0x82, 0x00, 0x89, 0x00, 0xa1, 0x8c, 0x00, /* 0xe8-0xef */
+	0x00, 0x00, 0x00, 0xa2, 0x93, 0x00, 0x94, 0xf6, /* 0xf0-0xf7 */
+	0x00, 0x00, 0xa3, 0x00, 0x81, 0xec, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static unsigned char page01[256] = {
+	0x00, 0x00, 0xc6, 0xc7, 0xa4, 0xa5, 0x8f, 0x86, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xac, 0x9f, 0xd2, 0xd4, /* 0x08-0x0f */
+	0xd1, 0xd0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0xa8, 0xa9, 0xb7, 0xd8, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x91, 0x92, 0x00, 0x00, 0x95, 0x96, 0x00, /* 0x38-0x3f */
+	0x00, 0x9d, 0x88, 0xe3, 0xe4, 0x00, 0x00, 0xd5, /* 0x40-0x47 */
+	0xe5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x8a, 0x8b, 0x00, 0x00, 0xe8, 0xea, 0x00, 0x00, /* 0x50-0x57 */
+	0xfc, 0xfd, 0x97, 0x98, 0x00, 0x00, 0xb8, 0xad, /* 0x58-0x5f */
+	0xe6, 0xe7, 0xdd, 0xee, 0x9b, 0x9c, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xde, 0x85, /* 0x68-0x6f */
+	0xeb, 0xfb, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x8d, 0xab, 0xbd, 0xbe, 0xa6, 0xa7, 0x00, /* 0x78-0x7f */
+};
+
+static unsigned char page02[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf3, /* 0xc0-0xc7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+	0xf4, 0xfa, 0x00, 0xf2, 0x00, 0xf1, 0x00, 0x00, /* 0xd8-0xdf */
+};
+
+static unsigned char page25[256] = {
+	0xc4, 0x00, 0xb3, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xda, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0xbf, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0xd9, 0x00, 0x00, 0x00, 0xc3, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0xb4, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xc2, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0xc1, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xc5, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0xcd, 0xba, 0x00, 0x00, 0xc9, 0x00, 0x00, 0xbb, /* 0x50-0x57 */
+	0x00, 0x00, 0xc8, 0x00, 0x00, 0xbc, 0x00, 0x00, /* 0x58-0x5f */
+	0xcc, 0x00, 0x00, 0xb9, 0x00, 0x00, 0xcb, 0x00, /* 0x60-0x67 */
+	0x00, 0xca, 0x00, 0x00, 0xce, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0xdf, 0x00, 0x00, 0x00, 0xdc, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0xdb, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0xb0, 0xb1, 0xb2, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, page01, page02, NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   page25, NULL,   NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x87, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8b, 0x8b, 0x8c, 0xab, 0x84, 0x86, /* 0x88-0x8f */
+	0x82, 0x92, 0x92, 0x93, 0x94, 0x96, 0x96, 0x98, /* 0x90-0x97 */
+	0x98, 0x94, 0x81, 0x9c, 0x9c, 0x88, 0x9e, 0x9f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa5, 0xa5, 0xa7, 0xa7, /* 0xa0-0xa7 */
+	0xa9, 0xa9, 0xaa, 0xab, 0x9f, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xa0, 0x83, 0xd8, /* 0xb0-0xb7 */
+	0xad, 0xb9, 0xba, 0xbb, 0xbc, 0xbe, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc7, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd0, 0xd4, 0x89, 0xd4, 0xe5, 0xa1, 0x8c, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xee, 0x85, 0xdf, /* 0xd8-0xdf */
+	0xa2, 0xe1, 0x93, 0xe4, 0xe4, 0xe5, 0xe7, 0xe7, /* 0xe0-0xe7 */
+	0xea, 0xa3, 0xea, 0xfb, 0xec, 0xec, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfd, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x9a, 0x90, 0xb6, 0x8e, 0xde, 0x8f, 0x80, /* 0x80-0x87 */
+	0x9d, 0xd3, 0x8a, 0x8a, 0xd7, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x91, 0x91, 0xe2, 0x99, 0x95, 0x95, 0x97, /* 0x90-0x97 */
+	0x97, 0x99, 0x9a, 0x9b, 0x9b, 0x9d, 0x9e, 0xac, /* 0x98-0x9f */
+	0xb5, 0xd6, 0xe0, 0xe9, 0xa4, 0xa4, 0xa6, 0xa6, /* 0xa0-0xa7 */
+	0xa8, 0xa8, 0xaa, 0x8d, 0xac, 0xb8, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbd, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc6, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd1, 0xd1, 0xd2, 0xd3, 0xd2, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xb7, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe3, 0xd5, 0xe6, 0xe6, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xe8, 0xeb, 0xed, 0xed, 0xdd, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xeb, 0xfc, 0xfc, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"cp852",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_cp852(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_cp852(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_cp852)
+module_exit(exit_nls_cp852)
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/fs/nls/nls_cp855.c b/fs/nls/nls_cp855.c
new file mode 100644
index 00000000000000..e95e89b464fe05
--- /dev/null
+++ b/fs/nls/nls_cp855.c
@@ -0,0 +1,316 @@
+/*
+ * linux/fs/nls_cp855.c
+ *
+ * Charset cp855 translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x0452, 0x0402, 0x0453, 0x0403,
+	0x0451, 0x0401, 0x0454, 0x0404,
+	0x0455, 0x0405, 0x0456, 0x0406,
+	0x0457, 0x0407, 0x0458, 0x0408,
+	/* 0x90*/
+	0x0459, 0x0409, 0x045a, 0x040a,
+	0x045b, 0x040b, 0x045c, 0x040c,
+	0x045e, 0x040e, 0x045f, 0x040f,
+	0x044e, 0x042e, 0x044a, 0x042a,
+	/* 0xa0*/
+	0x0430, 0x0410, 0x0431, 0x0411,
+	0x0446, 0x0426, 0x0434, 0x0414,
+	0x0435, 0x0415, 0x0444, 0x0424,
+	0x0433, 0x0413, 0x00ab, 0x00bb,
+	/* 0xb0*/
+	0x2591, 0x2592, 0x2593, 0x2502,
+	0x2524, 0x0445, 0x0425, 0x0438,
+	0x0418, 0x2563, 0x2551, 0x2557,
+	0x255d, 0x0439, 0x0419, 0x2510,
+	/* 0xc0*/
+	0x2514, 0x2534, 0x252c, 0x251c,
+	0x2500, 0x253c, 0x043a, 0x041a,
+	0x255a, 0x2554, 0x2569, 0x2566,
+	0x2560, 0x2550, 0x256c, 0x00a4,
+	/* 0xd0*/
+	0x043b, 0x041b, 0x043c, 0x041c,
+	0x043d, 0x041d, 0x043e, 0x041e,
+	0x043f, 0x2518, 0x250c, 0x2588,
+	0x2584, 0x041f, 0x044f, 0x2580,
+	/* 0xe0*/
+	0x042f, 0x0440, 0x0420, 0x0441,
+	0x0421, 0x0442, 0x0422, 0x0443,
+	0x0423, 0x0436, 0x0416, 0x0432,
+	0x0412, 0x044c, 0x042c, 0x2116,
+	/* 0xf0*/
+	0x00ad, 0x044b, 0x042b, 0x0437,
+	0x0417, 0x0448, 0x0428, 0x044d,
+	0x042d, 0x0449, 0x0429, 0x0447,
+	0x0427, 0x00a7, 0x25a0, 0x00a0,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xff, 0x00, 0x00, 0x00, 0xcf, 0x00, 0x00, 0xfd, /* 0xa0-0xa7 */
+	0x00, 0x00, 0x00, 0xae, 0x00, 0xf0, 0x00, 0x00, /* 0xa8-0xaf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0xaf, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+};
+
+static unsigned char page04[256] = {
+	0x00, 0x85, 0x81, 0x83, 0x87, 0x89, 0x8b, 0x8d, /* 0x00-0x07 */
+	0x8f, 0x91, 0x93, 0x95, 0x97, 0x00, 0x99, 0x9b, /* 0x08-0x0f */
+	0xa1, 0xa3, 0xec, 0xad, 0xa7, 0xa9, 0xea, 0xf4, /* 0x10-0x17 */
+	0xb8, 0xbe, 0xc7, 0xd1, 0xd3, 0xd5, 0xd7, 0xdd, /* 0x18-0x1f */
+	0xe2, 0xe4, 0xe6, 0xe8, 0xab, 0xb6, 0xa5, 0xfc, /* 0x20-0x27 */
+	0xf6, 0xfa, 0x9f, 0xf2, 0xee, 0xf8, 0x9d, 0xe0, /* 0x28-0x2f */
+	0xa0, 0xa2, 0xeb, 0xac, 0xa6, 0xa8, 0xe9, 0xf3, /* 0x30-0x37 */
+	0xb7, 0xbd, 0xc6, 0xd0, 0xd2, 0xd4, 0xd6, 0xd8, /* 0x38-0x3f */
+	0xe1, 0xe3, 0xe5, 0xe7, 0xaa, 0xb5, 0xa4, 0xfb, /* 0x40-0x47 */
+	0xf5, 0xf9, 0x9e, 0xf1, 0xed, 0xf7, 0x9c, 0xde, /* 0x48-0x4f */
+	0x00, 0x84, 0x80, 0x82, 0x86, 0x88, 0x8a, 0x8c, /* 0x50-0x57 */
+	0x8e, 0x90, 0x92, 0x94, 0x96, 0x00, 0x98, 0x9a, /* 0x58-0x5f */
+};
+
+static unsigned char page21[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xef, 0x00, /* 0x10-0x17 */
+};
+
+static unsigned char page25[256] = {
+	0xc4, 0x00, 0xb3, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xda, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0xbf, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0xd9, 0x00, 0x00, 0x00, 0xc3, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0xb4, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xc2, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0xc1, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xc5, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0xcd, 0xba, 0x00, 0x00, 0xc9, 0x00, 0x00, 0xbb, /* 0x50-0x57 */
+	0x00, 0x00, 0xc8, 0x00, 0x00, 0xbc, 0x00, 0x00, /* 0x58-0x5f */
+	0xcc, 0x00, 0x00, 0xb9, 0x00, 0x00, 0xcb, 0x00, /* 0x60-0x67 */
+	0x00, 0xca, 0x00, 0x00, 0xce, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0xdf, 0x00, 0x00, 0x00, 0xdc, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0xdb, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0xb0, 0xb1, 0xb2, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, NULL,   NULL,   NULL,   page04, NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   page21, NULL,   NULL,   NULL,   page25, NULL,   NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x80, 0x82, 0x82, 0x84, 0x84, 0x86, 0x86, /* 0x80-0x87 */
+	0x88, 0x88, 0x8a, 0x8a, 0x8c, 0x8c, 0x8e, 0x8e, /* 0x88-0x8f */
+	0x90, 0x90, 0x92, 0x92, 0x94, 0x94, 0x96, 0x96, /* 0x90-0x97 */
+	0x98, 0x98, 0x9a, 0x9a, 0x9c, 0x9c, 0x9e, 0x9e, /* 0x98-0x9f */
+	0xa0, 0xa0, 0xa2, 0xa2, 0xa4, 0xa4, 0xa6, 0xa6, /* 0xa0-0xa7 */
+	0xa8, 0xa8, 0xaa, 0xaa, 0xac, 0xac, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb5, 0xb7, /* 0xb0-0xb7 */
+	0xb7, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbd, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc6, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd0, 0xd2, 0xd2, 0xd4, 0xd4, 0xd6, 0xd6, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xd8, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xde, 0xe1, 0xe1, 0xe3, 0xe3, 0xe5, 0xe5, 0xe7, /* 0xe0-0xe7 */
+	0xe7, 0xe9, 0xe9, 0xeb, 0xeb, 0xed, 0xed, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf1, 0xf3, 0xf3, 0xf5, 0xf5, 0xf7, /* 0xf0-0xf7 */
+	0xf7, 0xf9, 0xf9, 0xfb, 0xfb, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x81, 0x81, 0x83, 0x83, 0x85, 0x85, 0x87, 0x87, /* 0x80-0x87 */
+	0x89, 0x89, 0x8b, 0x8b, 0x8d, 0x8d, 0x8f, 0x8f, /* 0x88-0x8f */
+	0x91, 0x91, 0x93, 0x93, 0x95, 0x95, 0x97, 0x97, /* 0x90-0x97 */
+	0x99, 0x99, 0x9b, 0x9b, 0x9d, 0x9d, 0x9f, 0x9f, /* 0x98-0x9f */
+	0xa1, 0xa1, 0xa3, 0xa3, 0xa5, 0xa5, 0xa7, 0xa7, /* 0xa0-0xa7 */
+	0xa9, 0xa9, 0xab, 0xab, 0xad, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb6, 0xb6, 0xb8, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbe, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc7, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd1, 0xd1, 0xd3, 0xd3, 0xd5, 0xd5, 0xd7, 0xd7, /* 0xd0-0xd7 */
+	0xdd, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xe0, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe2, 0xe2, 0xe4, 0xe4, 0xe6, 0xe6, 0xe8, /* 0xe0-0xe7 */
+	0xe8, 0xea, 0xea, 0xec, 0xec, 0xee, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf2, 0xf2, 0xf4, 0xf4, 0xf6, 0xf6, 0xf8, /* 0xf0-0xf7 */
+	0xf8, 0xfa, 0xfa, 0xfc, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"cp855",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_cp855(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_cp855(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_cp855)
+module_exit(exit_nls_cp855)
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/fs/nls/nls_cp857.c b/fs/nls/nls_cp857.c
new file mode 100644
index 00000000000000..dc849b33bad164
--- /dev/null
+++ b/fs/nls/nls_cp857.c
@@ -0,0 +1,318 @@
+/*
+ * linux/fs/nls_cp857.c
+ *
+ * Charset cp857 translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x00c7, 0x00fc, 0x00e9, 0x00e2,
+	0x00e4, 0x00e0, 0x00e5, 0x00e7,
+	0x00ea, 0x00eb, 0x00e8, 0x00ef,
+	0x00ee, 0x0131, 0x00c4, 0x00c5,
+	/* 0x90*/
+	0x00c9, 0x00e6, 0x00c6, 0x00f4,
+	0x00f6, 0x00f2, 0x00fb, 0x00f9,
+	0x0130, 0x00d6, 0x00dc, 0x00f8,
+	0x00a3, 0x00d8, 0x015e, 0x015f,
+	/* 0xa0*/
+	0x00e1, 0x00ed, 0x00f3, 0x00fa,
+	0x00f1, 0x00d1, 0x011e, 0x011f,
+	0x00bf, 0x00ae, 0x00ac, 0x00bd,
+	0x00bc, 0x00a1, 0x00ab, 0x00bb,
+	/* 0xb0*/
+	0x2591, 0x2592, 0x2593, 0x2502,
+	0x2524, 0x00c1, 0x00c2, 0x00c0,
+	0x00a9, 0x2563, 0x2551, 0x2557,
+	0x255d, 0x00a2, 0x00a5, 0x2510,
+	/* 0xc0*/
+	0x2514, 0x2534, 0x252c, 0x251c,
+	0x2500, 0x253c, 0x00e3, 0x00c3,
+	0x255a, 0x2554, 0x2569, 0x2566,
+	0x2560, 0x2550, 0x256c, 0x00a4,
+	/* 0xd0*/
+	0x00ba, 0x00aa, 0x00ca, 0x00cb,
+	0x00c8, 0x0000, 0x00cd, 0x00ce,
+	0x00cf, 0x2518, 0x250c, 0x2588,
+	0x2584, 0x00a6, 0x00cc, 0x2580,
+	/* 0xe0*/
+	0x00d3, 0x00df, 0x00d4, 0x00d2,
+	0x00f5, 0x00d5, 0x00b5, 0x0000,
+	0x00d7, 0x00da, 0x00db, 0x00d9,
+	0x00ec, 0x00ff, 0x00af, 0x00b4,
+	/* 0xf0*/
+	0x00ad, 0x00b1, 0x0000, 0x00be,
+	0x00b6, 0x00a7, 0x00f7, 0x00b8,
+	0x00b0, 0x00a8, 0x00b7, 0x00b9,
+	0x00b3, 0x00b2, 0x25a0, 0x00a0,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xff, 0xad, 0xbd, 0x9c, 0xcf, 0xbe, 0xdd, 0xf5, /* 0xa0-0xa7 */
+	0xf9, 0xb8, 0xd1, 0xae, 0xaa, 0xf0, 0xa9, 0xee, /* 0xa8-0xaf */
+	0xf8, 0xf1, 0xfd, 0xfc, 0xef, 0xe6, 0xf4, 0xfa, /* 0xb0-0xb7 */
+	0xf7, 0xfb, 0xd0, 0xaf, 0xac, 0xab, 0xf3, 0xa8, /* 0xb8-0xbf */
+	0xb7, 0xb5, 0xb6, 0xc7, 0x8e, 0x8f, 0x92, 0x80, /* 0xc0-0xc7 */
+	0xd4, 0x90, 0xd2, 0xd3, 0xde, 0xd6, 0xd7, 0xd8, /* 0xc8-0xcf */
+	0x00, 0xa5, 0xe3, 0xe0, 0xe2, 0xe5, 0x99, 0xe8, /* 0xd0-0xd7 */
+	0x9d, 0xeb, 0xe9, 0xea, 0x9a, 0x00, 0x00, 0xe1, /* 0xd8-0xdf */
+	0x85, 0xa0, 0x83, 0xc6, 0x84, 0x86, 0x91, 0x87, /* 0xe0-0xe7 */
+	0x8a, 0x82, 0x88, 0x89, 0xec, 0xa1, 0x8c, 0x8b, /* 0xe8-0xef */
+	0x00, 0xa4, 0x95, 0xa2, 0x93, 0xe4, 0x94, 0xf6, /* 0xf0-0xf7 */
+	0x9b, 0x97, 0xa3, 0x96, 0x81, 0x00, 0x00, 0xed, /* 0xf8-0xff */
+};
+
+static unsigned char page01[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa6, 0xa7, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x98, 0x8d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9e, 0x9f, /* 0x58-0x5f */
+};
+
+static unsigned char page25[256] = {
+	0xc4, 0x00, 0xb3, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xda, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0xbf, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0xd9, 0x00, 0x00, 0x00, 0xc3, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0xb4, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xc2, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0xc1, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xc5, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0xcd, 0xba, 0x00, 0x00, 0xc9, 0x00, 0x00, 0xbb, /* 0x50-0x57 */
+	0x00, 0x00, 0xc8, 0x00, 0x00, 0xbc, 0x00, 0x00, /* 0x58-0x5f */
+	0xcc, 0x00, 0x00, 0xb9, 0x00, 0x00, 0xcb, 0x00, /* 0x60-0x67 */
+	0x00, 0xca, 0x00, 0x00, 0xce, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0xdf, 0x00, 0x00, 0x00, 0xdc, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0xdb, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0xb0, 0xb1, 0xb2, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, page01, NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   page25, NULL,   NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x87, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x84, 0x86, /* 0x88-0x8f */
+	0x82, 0x91, 0x91, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x69, 0x94, 0x81, 0x9b, 0x9c, 0x9b, 0x9f, 0x9f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa4, 0xa7, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xa0, 0x83, 0x85, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc6, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0x88, 0x89, 0x8a, 0x00, 0xa1, 0x8c, /* 0xd0-0xd7 */
+	0x8b, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xec, 0xdf, /* 0xd8-0xdf */
+	0xa2, 0xe1, 0x93, 0x95, 0xe4, 0xe4, 0xe6, 0x00, /* 0xe0-0xe7 */
+	0xe8, 0xa3, 0x96, 0x97, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0x00, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x9a, 0x90, 0xb6, 0x8e, 0xb7, 0x8f, 0x80, /* 0x80-0x87 */
+	0xd2, 0xd3, 0xd4, 0xd8, 0xd7, 0x49, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x92, 0x92, 0xe2, 0x99, 0xe3, 0xea, 0xeb, /* 0x90-0x97 */
+	0x98, 0x99, 0x9a, 0x9d, 0x9c, 0x9d, 0x9e, 0x9e, /* 0x98-0x9f */
+	0xb5, 0xd6, 0xe0, 0xe9, 0xa5, 0xa5, 0xa6, 0xa6, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc7, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0x00, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe5, 0xe5, 0x00, 0x00, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xde, 0x00, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0x00, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"cp857",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_cp857(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_cp857(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_cp857)
+module_exit(exit_nls_cp857)
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/fs/nls/nls_cp860.c b/fs/nls/nls_cp860.c
new file mode 100644
index 00000000000000..b9a219341314e3
--- /dev/null
+++ b/fs/nls/nls_cp860.c
@@ -0,0 +1,381 @@
+/*
+ * linux/fs/nls_cp860.c
+ *
+ * Charset cp860 translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x00c7, 0x00fc, 0x00e9, 0x00e2,
+	0x00e3, 0x00e0, 0x00c1, 0x00e7,
+	0x00ea, 0x00ca, 0x00e8, 0x00cd,
+	0x00d4, 0x00ec, 0x00c3, 0x00c2,
+	/* 0x90*/
+	0x00c9, 0x00c0, 0x00c8, 0x00f4,
+	0x00f5, 0x00f2, 0x00da, 0x00f9,
+	0x00cc, 0x00d5, 0x00dc, 0x00a2,
+	0x00a3, 0x00d9, 0x20a7, 0x00d3,
+	/* 0xa0*/
+	0x00e1, 0x00ed, 0x00f3, 0x00fa,
+	0x00f1, 0x00d1, 0x00aa, 0x00ba,
+	0x00bf, 0x00d2, 0x00ac, 0x00bd,
+	0x00bc, 0x00a1, 0x00ab, 0x00bb,
+	/* 0xb0*/
+	0x2591, 0x2592, 0x2593, 0x2502,
+	0x2524, 0x2561, 0x2562, 0x2556,
+	0x2555, 0x2563, 0x2551, 0x2557,
+	0x255d, 0x255c, 0x255b, 0x2510,
+	/* 0xc0*/
+	0x2514, 0x2534, 0x252c, 0x251c,
+	0x2500, 0x253c, 0x255e, 0x255f,
+	0x255a, 0x2554, 0x2569, 0x2566,
+	0x2560, 0x2550, 0x256c, 0x2567,
+	/* 0xd0*/
+	0x2568, 0x2564, 0x2565, 0x2559,
+	0x2558, 0x2552, 0x2553, 0x256b,
+	0x256a, 0x2518, 0x250c, 0x2588,
+	0x2584, 0x258c, 0x2590, 0x2580,
+	/* 0xe0*/
+	0x03b1, 0x00df, 0x0393, 0x03c0,
+	0x03a3, 0x03c3, 0x00b5, 0x03c4,
+	0x03a6, 0x0398, 0x03a9, 0x03b4,
+	0x221e, 0x03c6, 0x03b5, 0x2229,
+	/* 0xf0*/
+	0x2261, 0x00b1, 0x2265, 0x2264,
+	0x2320, 0x2321, 0x00f7, 0x2248,
+	0x00b0, 0x2219, 0x00b7, 0x221a,
+	0x207f, 0x00b2, 0x25a0, 0x00a0,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xff, 0xad, 0x9b, 0x9c, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+	0x00, 0x00, 0xa6, 0xae, 0xaa, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+	0xf8, 0xf1, 0xfd, 0x00, 0x00, 0xe6, 0x00, 0xfa, /* 0xb0-0xb7 */
+	0x00, 0x00, 0xa7, 0xaf, 0xac, 0xab, 0x00, 0xa8, /* 0xb8-0xbf */
+	0x91, 0x86, 0x8f, 0x8e, 0x00, 0x00, 0x00, 0x80, /* 0xc0-0xc7 */
+	0x92, 0x90, 0x89, 0x00, 0x98, 0x8b, 0x00, 0x00, /* 0xc8-0xcf */
+	0x00, 0xa5, 0xa9, 0x9f, 0x8c, 0x99, 0x00, 0x00, /* 0xd0-0xd7 */
+	0x00, 0x9d, 0x96, 0x00, 0x9a, 0x00, 0x00, 0xe1, /* 0xd8-0xdf */
+	0x85, 0xa0, 0x83, 0x84, 0x00, 0x00, 0x00, 0x87, /* 0xe0-0xe7 */
+	0x8a, 0x82, 0x88, 0x00, 0x8d, 0xa1, 0x00, 0x00, /* 0xe8-0xef */
+	0x00, 0xa4, 0x95, 0xa2, 0x93, 0x94, 0x00, 0xf6, /* 0xf0-0xf7 */
+	0x00, 0x97, 0xa3, 0x00, 0x81, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static unsigned char page03[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0xe2, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0xe9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0xe4, 0x00, 0x00, 0xe8, 0x00, /* 0xa0-0xa7 */
+	0x00, 0xea, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+	0x00, 0xe0, 0x00, 0x00, 0xeb, 0xee, 0x00, 0x00, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+	0xe3, 0x00, 0x00, 0xe5, 0xe7, 0x00, 0xed, 0x00, /* 0xc0-0xc7 */
+};
+
+static unsigned char page20[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9e, /* 0xa0-0xa7 */
+};
+
+static unsigned char page22[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0xf9, 0xfb, 0x00, 0x00, 0x00, 0xec, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0xef, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0xf7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0xf0, 0x00, 0x00, 0xf3, 0xf2, 0x00, 0x00, /* 0x60-0x67 */
+};
+
+static unsigned char page23[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0xf4, 0xf5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+};
+
+static unsigned char page25[256] = {
+	0xc4, 0x00, 0xb3, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xda, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0xbf, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0xd9, 0x00, 0x00, 0x00, 0xc3, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0xb4, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xc2, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0xc1, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xc5, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0xcd, 0xba, 0xd5, 0xd6, 0xc9, 0xb8, 0xb7, 0xbb, /* 0x50-0x57 */
+	0xd4, 0xd3, 0xc8, 0xbe, 0xbd, 0xbc, 0xc6, 0xc7, /* 0x58-0x5f */
+	0xcc, 0xb5, 0xb6, 0xb9, 0xd1, 0xd2, 0xcb, 0xcf, /* 0x60-0x67 */
+	0xd0, 0xca, 0xd8, 0xd7, 0xce, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0xdf, 0x00, 0x00, 0x00, 0xdc, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0xdb, 0x00, 0x00, 0x00, 0xdd, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0xde, 0xb0, 0xb1, 0xb2, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, NULL,   NULL,   page03, NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	page20, NULL,   page22, page23, NULL,   page25, NULL,   NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x87, 0x81, 0x82, 0x83, 0x84, 0x85, 0xa0, 0x87, /* 0x80-0x87 */
+	0x88, 0x88, 0x8a, 0xa1, 0x93, 0x8d, 0x84, 0x83, /* 0x88-0x8f */
+	0x82, 0x85, 0x8a, 0x93, 0x94, 0x95, 0xa3, 0x97, /* 0x90-0x97 */
+	0x8d, 0x94, 0x81, 0x9b, 0x9c, 0x97, 0x9e, 0xa2, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa4, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0x95, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0x00, 0xe3, 0xe5, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xed, 0x00, 0x00, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x9a, 0x90, 0x8f, 0x8e, 0x91, 0x86, 0x80, /* 0x80-0x87 */
+	0x89, 0x89, 0x92, 0x8b, 0x8c, 0x98, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x91, 0x92, 0x8c, 0x99, 0xa9, 0x96, 0x9d, /* 0x90-0x97 */
+	0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x98-0x9f */
+	0x86, 0x8b, 0x9f, 0x96, 0xa5, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0x00, 0xe1, 0xe2, 0x00, 0xe4, 0xe4, 0x00, 0x00, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0x00, 0xec, 0xe8, 0x00, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"cp860",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_cp860(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_cp860(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_cp860)
+module_exit(exit_nls_cp860)
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/fs/nls/nls_cp861.c b/fs/nls/nls_cp861.c
new file mode 100644
index 00000000000000..91c839b8949637
--- /dev/null
+++ b/fs/nls/nls_cp861.c
@@ -0,0 +1,404 @@
+/*
+ * linux/fs/nls_cp861.c
+ *
+ * Charset cp861 translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x00c7, 0x00fc, 0x00e9, 0x00e2,
+	0x00e4, 0x00e0, 0x00e5, 0x00e7,
+	0x00ea, 0x00eb, 0x00e8, 0x00d0,
+	0x00f0, 0x00de, 0x00c4, 0x00c5,
+	/* 0x90*/
+	0x00c9, 0x00e6, 0x00c6, 0x00f4,
+	0x00f6, 0x00fe, 0x00fb, 0x00dd,
+	0x00fd, 0x00d6, 0x00dc, 0x00f8,
+	0x00a3, 0x00d8, 0x20a7, 0x0192,
+	/* 0xa0*/
+	0x00e1, 0x00ed, 0x00f3, 0x00fa,
+	0x00c1, 0x00cd, 0x00d3, 0x00da,
+	0x00bf, 0x2310, 0x00ac, 0x00bd,
+	0x00bc, 0x00a1, 0x00ab, 0x00bb,
+	/* 0xb0*/
+	0x2591, 0x2592, 0x2593, 0x2502,
+	0x2524, 0x2561, 0x2562, 0x2556,
+	0x2555, 0x2563, 0x2551, 0x2557,
+	0x255d, 0x255c, 0x255b, 0x2510,
+	/* 0xc0*/
+	0x2514, 0x2534, 0x252c, 0x251c,
+	0x2500, 0x253c, 0x255e, 0x255f,
+	0x255a, 0x2554, 0x2569, 0x2566,
+	0x2560, 0x2550, 0x256c, 0x2567,
+	/* 0xd0*/
+	0x2568, 0x2564, 0x2565, 0x2559,
+	0x2558, 0x2552, 0x2553, 0x256b,
+	0x256a, 0x2518, 0x250c, 0x2588,
+	0x2584, 0x258c, 0x2590, 0x2580,
+	/* 0xe0*/
+	0x03b1, 0x00df, 0x0393, 0x03c0,
+	0x03a3, 0x03c3, 0x00b5, 0x03c4,
+	0x03a6, 0x0398, 0x03a9, 0x03b4,
+	0x221e, 0x03c6, 0x03b5, 0x2229,
+	/* 0xf0*/
+	0x2261, 0x00b1, 0x2265, 0x2264,
+	0x2320, 0x2321, 0x00f7, 0x2248,
+	0x00b0, 0x2219, 0x00b7, 0x221a,
+	0x207f, 0x00b2, 0x25a0, 0x00a0,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xff, 0xad, 0x00, 0x9c, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+	0x00, 0x00, 0x00, 0xae, 0xaa, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+	0xf8, 0xf1, 0xfd, 0x00, 0x00, 0xe6, 0x00, 0xfa, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0xaf, 0xac, 0xab, 0x00, 0xa8, /* 0xb8-0xbf */
+	0x00, 0xa4, 0x00, 0x00, 0x8e, 0x8f, 0x92, 0x80, /* 0xc0-0xc7 */
+	0x00, 0x90, 0x00, 0x00, 0x00, 0xa5, 0x00, 0x00, /* 0xc8-0xcf */
+	0x8b, 0x00, 0x00, 0xa6, 0x00, 0x00, 0x99, 0x00, /* 0xd0-0xd7 */
+	0x9d, 0x00, 0xa7, 0x00, 0x9a, 0x97, 0x8d, 0xe1, /* 0xd8-0xdf */
+	0x85, 0xa0, 0x83, 0x00, 0x84, 0x86, 0x91, 0x87, /* 0xe0-0xe7 */
+	0x8a, 0x82, 0x88, 0x89, 0x00, 0xa1, 0x00, 0x00, /* 0xe8-0xef */
+	0x8c, 0x00, 0x00, 0xa2, 0x93, 0x00, 0x94, 0xf6, /* 0xf0-0xf7 */
+	0x9b, 0x00, 0xa3, 0x96, 0x81, 0x98, 0x95, 0x00, /* 0xf8-0xff */
+};
+
+static unsigned char page01[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x9f, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+};
+
+static unsigned char page03[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0xe2, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0xe9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0xe4, 0x00, 0x00, 0xe8, 0x00, /* 0xa0-0xa7 */
+	0x00, 0xea, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+	0x00, 0xe0, 0x00, 0x00, 0xeb, 0xee, 0x00, 0x00, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+	0xe3, 0x00, 0x00, 0xe5, 0xe7, 0x00, 0xed, 0x00, /* 0xc0-0xc7 */
+};
+
+static unsigned char page20[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9e, /* 0xa0-0xa7 */
+};
+
+static unsigned char page22[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0xf9, 0xfb, 0x00, 0x00, 0x00, 0xec, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0xef, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0xf7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0xf0, 0x00, 0x00, 0xf3, 0xf2, 0x00, 0x00, /* 0x60-0x67 */
+};
+
+static unsigned char page23[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0xa9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0xf4, 0xf5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+};
+
+static unsigned char page25[256] = {
+	0xc4, 0x00, 0xb3, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xda, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0xbf, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0xd9, 0x00, 0x00, 0x00, 0xc3, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0xb4, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xc2, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0xc1, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xc5, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0xcd, 0xba, 0xd5, 0xd6, 0xc9, 0xb8, 0xb7, 0xbb, /* 0x50-0x57 */
+	0xd4, 0xd3, 0xc8, 0xbe, 0xbd, 0xbc, 0xc6, 0xc7, /* 0x58-0x5f */
+	0xcc, 0xb5, 0xb6, 0xb9, 0xd1, 0xd2, 0xcb, 0xcf, /* 0x60-0x67 */
+	0xd0, 0xca, 0xd8, 0xd7, 0xce, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0xdf, 0x00, 0x00, 0x00, 0xdc, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0xdb, 0x00, 0x00, 0x00, 0xdd, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0xde, 0xb0, 0xb1, 0xb2, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, page01, NULL,   page03, NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	page20, NULL,   page22, page23, NULL,   page25, NULL,   NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x87, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8c, 0x8c, 0x95, 0x84, 0x86, /* 0x88-0x8f */
+	0x82, 0x91, 0x91, 0x93, 0x94, 0x95, 0x96, 0x98, /* 0x90-0x97 */
+	0x98, 0x94, 0x81, 0x9b, 0x9c, 0x9b, 0x9e, 0x9f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa0, 0xa1, 0xa2, 0xa3, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0x00, 0xe3, 0xe5, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xed, 0x00, 0x00, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x9a, 0x90, 0x00, 0x8e, 0x00, 0x8f, 0x80, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x8b, 0x8b, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x92, 0x92, 0x00, 0x99, 0x8d, 0x00, 0x97, /* 0x90-0x97 */
+	0x97, 0x99, 0x9a, 0x9d, 0x9c, 0x9d, 0x9e, 0x00, /* 0x98-0x9f */
+	0xa4, 0xa5, 0xa6, 0xa7, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0x00, 0xe1, 0xe2, 0x00, 0xe4, 0xe4, 0x00, 0x00, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0x00, 0xec, 0xe8, 0x00, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"cp861",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_cp861(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_cp861(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_cp861)
+module_exit(exit_nls_cp861)
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/fs/nls/nls_cp862.c b/fs/nls/nls_cp862.c
new file mode 100644
index 00000000000000..ef2999a0d1dcad
--- /dev/null
+++ b/fs/nls/nls_cp862.c
@@ -0,0 +1,438 @@
+/*
+ * linux/fs/nls_cp862.c
+ *
+ * Charset cp862 translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x05d0, 0x05d1, 0x05d2, 0x05d3,
+	0x05d4, 0x05d5, 0x05d6, 0x05d7,
+	0x05d8, 0x05d9, 0x05da, 0x05db,
+	0x05dc, 0x05dd, 0x05de, 0x05df,
+	/* 0x90*/
+	0x05e0, 0x05e1, 0x05e2, 0x05e3,
+	0x05e4, 0x05e5, 0x05e6, 0x05e7,
+	0x05e8, 0x05e9, 0x05ea, 0x00a2,
+	0x00a3, 0x00a5, 0x20a7, 0x0192,
+	/* 0xa0*/
+	0x00e1, 0x00ed, 0x00f3, 0x00fa,
+	0x00f1, 0x00d1, 0x00aa, 0x00ba,
+	0x00bf, 0x2310, 0x00ac, 0x00bd,
+	0x00bc, 0x00a1, 0x00ab, 0x00bb,
+	/* 0xb0*/
+	0x2591, 0x2592, 0x2593, 0x2502,
+	0x2524, 0x2561, 0x2562, 0x2556,
+	0x2555, 0x2563, 0x2551, 0x2557,
+	0x255d, 0x255c, 0x255b, 0x2510,
+	/* 0xc0*/
+	0x2514, 0x2534, 0x252c, 0x251c,
+	0x2500, 0x253c, 0x255e, 0x255f,
+	0x255a, 0x2554, 0x2569, 0x2566,
+	0x2560, 0x2550, 0x256c, 0x2567,
+	/* 0xd0*/
+	0x2568, 0x2564, 0x2565, 0x2559,
+	0x2558, 0x2552, 0x2553, 0x256b,
+	0x256a, 0x2518, 0x250c, 0x2588,
+	0x2584, 0x258c, 0x2590, 0x2580,
+	/* 0xe0*/
+	0x03b1, 0x00df, 0x0393, 0x03c0,
+	0x03a3, 0x03c3, 0x00b5, 0x03c4,
+	0x03a6, 0x0398, 0x03a9, 0x03b4,
+	0x221e, 0x03c6, 0x03b5, 0x2229,
+	/* 0xf0*/
+	0x2261, 0x00b1, 0x2265, 0x2264,
+	0x2320, 0x2321, 0x00f7, 0x2248,
+	0x00b0, 0x2219, 0x00b7, 0x221a,
+	0x207f, 0x00b2, 0x25a0, 0x00a0,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xff, 0xad, 0x9b, 0x9c, 0x00, 0x9d, 0x00, 0x00, /* 0xa0-0xa7 */
+	0x00, 0x00, 0xa6, 0xae, 0xaa, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+	0xf8, 0xf1, 0xfd, 0x00, 0x00, 0xe6, 0x00, 0xfa, /* 0xb0-0xb7 */
+	0x00, 0x00, 0xa7, 0xaf, 0xac, 0xab, 0x00, 0xa8, /* 0xb8-0xbf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+	0x00, 0xa5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe1, /* 0xd8-0xdf */
+	0x00, 0xa0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0xa1, 0x00, 0x00, /* 0xe8-0xef */
+	0x00, 0xa4, 0x00, 0xa2, 0x00, 0x00, 0x00, 0xf6, /* 0xf0-0xf7 */
+	0x00, 0x00, 0xa3, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static unsigned char page01[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x9f, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+};
+
+static unsigned char page03[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0xe2, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0xe9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0xe4, 0x00, 0x00, 0xe8, 0x00, /* 0xa0-0xa7 */
+	0x00, 0xea, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+	0x00, 0xe0, 0x00, 0x00, 0xeb, 0xee, 0x00, 0x00, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+	0xe3, 0x00, 0x00, 0xe5, 0xe7, 0x00, 0xed, 0x00, /* 0xc0-0xc7 */
+};
+
+static unsigned char page05[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+	0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0xd0-0xd7 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0xd8-0xdf */
+	0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0xe0-0xe7 */
+	0x98, 0x99, 0x9a, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+};
+
+static unsigned char page20[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9e, /* 0xa0-0xa7 */
+};
+
+static unsigned char page22[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0xf9, 0xfb, 0x00, 0x00, 0x00, 0xec, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0xef, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0xf7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0xf0, 0x00, 0x00, 0xf3, 0xf2, 0x00, 0x00, /* 0x60-0x67 */
+};
+
+static unsigned char page23[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0xa9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0xf4, 0xf5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+};
+
+static unsigned char page25[256] = {
+	0xc4, 0x00, 0xb3, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xda, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0xbf, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0xd9, 0x00, 0x00, 0x00, 0xc3, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0xb4, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xc2, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0xc1, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xc5, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0xcd, 0xba, 0xd5, 0xd6, 0xc9, 0xb8, 0xb7, 0xbb, /* 0x50-0x57 */
+	0xd4, 0xd3, 0xc8, 0xbe, 0xbd, 0xbc, 0xc6, 0xc7, /* 0x58-0x5f */
+	0xcc, 0xb5, 0xb6, 0xb9, 0xd1, 0xd2, 0xcb, 0xcf, /* 0x60-0x67 */
+	0xd0, 0xca, 0xd8, 0xd7, 0xce, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0xdf, 0x00, 0x00, 0x00, 0xdc, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0xdb, 0x00, 0x00, 0x00, 0xdd, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0xde, 0xb0, 0xb1, 0xb2, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, page01, NULL,   page03, NULL,   page05, NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	page20, NULL,   page22, page23, NULL,   page25, NULL,   NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa4, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0x00, 0xe3, 0xe5, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xed, 0x00, 0x00, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0x00, 0xa5, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0x00, 0xe1, 0xe2, 0x00, 0xe4, 0xe4, 0x00, 0x00, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0x00, 0xec, 0xe8, 0x00, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"cp862",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_cp862(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_cp862(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_cp862)
+module_exit(exit_nls_cp862)
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/fs/nls/nls_cp863.c b/fs/nls/nls_cp863.c
new file mode 100644
index 00000000000000..1b4c6c04b1db06
--- /dev/null
+++ b/fs/nls/nls_cp863.c
@@ -0,0 +1,398 @@
+/*
+ * linux/fs/nls_cp863.c
+ *
+ * Charset cp863 translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x00c7, 0x00fc, 0x00e9, 0x00e2,
+	0x00c2, 0x00e0, 0x00b6, 0x00e7,
+	0x00ea, 0x00eb, 0x00e8, 0x00ef,
+	0x00ee, 0x2017, 0x00c0, 0x00a7,
+	/* 0x90*/
+	0x00c9, 0x00c8, 0x00ca, 0x00f4,
+	0x00cb, 0x00cf, 0x00fb, 0x00f9,
+	0x00a4, 0x00d4, 0x00dc, 0x00a2,
+	0x00a3, 0x00d9, 0x00db, 0x0192,
+	/* 0xa0*/
+	0x00a6, 0x00b4, 0x00f3, 0x00fa,
+	0x00a8, 0x00b8, 0x00b3, 0x00af,
+	0x00ce, 0x2310, 0x00ac, 0x00bd,
+	0x00bc, 0x00be, 0x00ab, 0x00bb,
+	/* 0xb0*/
+	0x2591, 0x2592, 0x2593, 0x2502,
+	0x2524, 0x2561, 0x2562, 0x2556,
+	0x2555, 0x2563, 0x2551, 0x2557,
+	0x255d, 0x255c, 0x255b, 0x2510,
+	/* 0xc0*/
+	0x2514, 0x2534, 0x252c, 0x251c,
+	0x2500, 0x253c, 0x255e, 0x255f,
+	0x255a, 0x2554, 0x2569, 0x2566,
+	0x2560, 0x2550, 0x256c, 0x2567,
+	/* 0xd0*/
+	0x2568, 0x2564, 0x2565, 0x2559,
+	0x2558, 0x2552, 0x2553, 0x256b,
+	0x256a, 0x2518, 0x250c, 0x2588,
+	0x2584, 0x258c, 0x2590, 0x2580,
+	/* 0xe0*/
+	0x03b1, 0x00df, 0x0393, 0x03c0,
+	0x03a3, 0x03c3, 0x00b5, 0x03c4,
+	0x03a6, 0x0398, 0x03a9, 0x03b4,
+	0x221e, 0x03c6, 0x03b5, 0x2229,
+	/* 0xf0*/
+	0x2261, 0x00b1, 0x2265, 0x2264,
+	0x2320, 0x2321, 0x00f7, 0x2248,
+	0x00b0, 0x2219, 0x00b7, 0x221a,
+	0x207f, 0x00b2, 0x25a0, 0x00a0,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xff, 0x00, 0x9b, 0x9c, 0x98, 0x00, 0xa0, 0x8f, /* 0xa0-0xa7 */
+	0xa4, 0x00, 0x00, 0xae, 0xaa, 0x00, 0x00, 0xa7, /* 0xa8-0xaf */
+	0xf8, 0xf1, 0xfd, 0xa6, 0xa1, 0xe6, 0x86, 0xfa, /* 0xb0-0xb7 */
+	0xa5, 0x00, 0x00, 0xaf, 0xac, 0xab, 0xad, 0x00, /* 0xb8-0xbf */
+	0x8e, 0x00, 0x84, 0x00, 0x00, 0x00, 0x00, 0x80, /* 0xc0-0xc7 */
+	0x91, 0x90, 0x92, 0x94, 0x00, 0x00, 0xa8, 0x95, /* 0xc8-0xcf */
+	0x00, 0x00, 0x00, 0x00, 0x99, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+	0x00, 0x9d, 0x00, 0x9e, 0x9a, 0x00, 0x00, 0xe1, /* 0xd8-0xdf */
+	0x85, 0x00, 0x83, 0x00, 0x00, 0x00, 0x00, 0x87, /* 0xe0-0xe7 */
+	0x8a, 0x82, 0x88, 0x89, 0x00, 0x00, 0x8c, 0x8b, /* 0xe8-0xef */
+	0x00, 0x00, 0x00, 0xa2, 0x93, 0x00, 0x00, 0xf6, /* 0xf0-0xf7 */
+	0x00, 0x97, 0xa3, 0x96, 0x81, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static unsigned char page01[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x9f, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+};
+
+static unsigned char page03[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0xe2, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0xe9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0xe4, 0x00, 0x00, 0xe8, 0x00, /* 0xa0-0xa7 */
+	0x00, 0xea, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+	0x00, 0xe0, 0x00, 0x00, 0xeb, 0xee, 0x00, 0x00, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+	0xe3, 0x00, 0x00, 0xe5, 0xe7, 0x00, 0xed, 0x00, /* 0xc0-0xc7 */
+};
+
+static unsigned char page20[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8d, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, /* 0x78-0x7f */
+};
+
+static unsigned char page22[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0xf9, 0xfb, 0x00, 0x00, 0x00, 0xec, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0xef, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0xf7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0xf0, 0x00, 0x00, 0xf3, 0xf2, 0x00, 0x00, /* 0x60-0x67 */
+};
+
+static unsigned char page23[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0xa9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0xf4, 0xf5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+};
+
+static unsigned char page25[256] = {
+	0xc4, 0x00, 0xb3, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xda, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0xbf, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0xd9, 0x00, 0x00, 0x00, 0xc3, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0xb4, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xc2, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0xc1, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xc5, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0xcd, 0xba, 0xd5, 0xd6, 0xc9, 0xb8, 0xb7, 0xbb, /* 0x50-0x57 */
+	0xd4, 0xd3, 0xc8, 0xbe, 0xbd, 0xbc, 0xc6, 0xc7, /* 0x58-0x5f */
+	0xcc, 0xb5, 0xb6, 0xb9, 0xd1, 0xd2, 0xcb, 0xcf, /* 0x60-0x67 */
+	0xd0, 0xca, 0xd8, 0xd7, 0xce, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0xdf, 0x00, 0x00, 0x00, 0xdc, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0xdb, 0x00, 0x00, 0x00, 0xdd, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0xde, 0xb0, 0xb1, 0xb2, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, page01, NULL,   page03, NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	page20, NULL,   page22, page23, NULL,   page25, NULL,   NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x87, 0x81, 0x82, 0x83, 0x83, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x85, 0x8f, /* 0x88-0x8f */
+	0x82, 0x8a, 0x88, 0x93, 0x89, 0x8b, 0x96, 0x97, /* 0x90-0x97 */
+	0x98, 0x93, 0x81, 0x9b, 0x9c, 0x97, 0x96, 0x9f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0x8c, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0x00, 0xe3, 0xe5, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xed, 0x00, 0x00, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x9a, 0x90, 0x84, 0x84, 0x8e, 0x86, 0x80, /* 0x80-0x87 */
+	0x92, 0x94, 0x91, 0x95, 0xa8, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x91, 0x92, 0x99, 0x94, 0x95, 0x9e, 0x9d, /* 0x90-0x97 */
+	0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x00, /* 0x98-0x9f */
+	0xa0, 0xa1, 0x00, 0x00, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0x00, 0xe1, 0xe2, 0x00, 0xe4, 0xe4, 0x00, 0x00, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0x00, 0xec, 0xe8, 0x00, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"cp863",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_cp863(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_cp863(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_cp863)
+module_exit(exit_nls_cp863)
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/fs/nls/nls_cp864.c b/fs/nls/nls_cp864.c
new file mode 100644
index 00000000000000..de5eac3d3de64a
--- /dev/null
+++ b/fs/nls/nls_cp864.c
@@ -0,0 +1,424 @@
+/*
+ * linux/fs/nls_cp864.c
+ *
+ * Charset cp864 translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x066a, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x00b0, 0x00b7, 0x2219, 0x221a,
+	0x2592, 0x2500, 0x2502, 0x253c,
+	0x2524, 0x252c, 0x251c, 0x2534,
+	0x2510, 0x250c, 0x2514, 0x2518,
+	/* 0x90*/
+	0x03b2, 0x221e, 0x03c6, 0x00b1,
+	0x00bd, 0x00bc, 0x2248, 0x00ab,
+	0x00bb, 0xfef7, 0xfef8, 0x0000,
+	0x0000, 0xfefb, 0xfefc, 0x0000,
+	/* 0xa0*/
+	0x00a0, 0x00ad, 0xfe82, 0x00a3,
+	0x00a4, 0xfe84, 0x0000, 0x0000,
+	0xfe8e, 0xfe8f, 0xfe95, 0xfe99,
+	0x060c, 0xfe9d, 0xfea1, 0xfea5,
+	/* 0xb0*/
+	0x0660, 0x0661, 0x0662, 0x0663,
+	0x0664, 0x0665, 0x0666, 0x0667,
+	0x0668, 0x0669, 0xfed1, 0x061b,
+	0xfeb1, 0xfeb5, 0xfeb9, 0x061f,
+	/* 0xc0*/
+	0x00a2, 0xfe80, 0xfe81, 0xfe83,
+	0xfe85, 0xfeca, 0xfe8b, 0xfe8d,
+	0xfe91, 0xfe93, 0xfe97, 0xfe9b,
+	0xfe9f, 0xfea3, 0xfea7, 0xfea9,
+	/* 0xd0*/
+	0xfeab, 0xfead, 0xfeaf, 0xfeb3,
+	0xfeb7, 0xfebb, 0xfebf, 0xfec1,
+	0xfec5, 0xfecb, 0xfecf, 0x00a6,
+	0x00ac, 0x00f7, 0x00d7, 0xfec9,
+	/* 0xe0*/
+	0x0640, 0xfed3, 0xfed7, 0xfedb,
+	0xfedf, 0xfee3, 0xfee7, 0xfeeb,
+	0xfeed, 0xfeef, 0xfef3, 0xfebd,
+	0xfecc, 0xfece, 0xfecd, 0xfee1,
+	/* 0xf0*/
+	0xfe7d, 0x0651, 0xfee5, 0xfee9,
+	0xfeec, 0xfef0, 0xfef2, 0xfed0,
+	0xfed5, 0xfef5, 0xfef6, 0xfedd,
+	0xfed9, 0xfef1, 0x25a0, 0x0000,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x00, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0x00, 0xc0, 0xa3, 0xa4, 0x00, 0xdb, 0x00, /* 0xa0-0xa7 */
+	0x00, 0x00, 0x00, 0x97, 0xdc, 0xa1, 0x00, 0x00, /* 0xa8-0xaf */
+	0x80, 0x93, 0x00, 0x00, 0x00, 0x00, 0x00, 0x81, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0x98, 0x95, 0x94, 0x00, 0x00, /* 0xb8-0xbf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xde, /* 0xd0-0xd7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xdd, /* 0xf0-0xf7 */
+};
+
+static unsigned char page03[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+	0x00, 0x00, 0x90, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x92, 0x00, /* 0xc0-0xc7 */
+};
+
+static unsigned char page06[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xac, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0xbb, 0x00, 0x00, 0x00, 0xbf, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0xe0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0xf1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0x60-0x67 */
+	0xb8, 0xb9, 0x25, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+};
+
+static unsigned char page22[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x82, 0x83, 0x00, 0x00, 0x00, 0x91, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x96, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+};
+
+static unsigned char page25[256] = {
+	0x85, 0x00, 0x86, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x8d, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x8c, 0x00, 0x00, 0x00, 0x8e, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x8f, 0x00, 0x00, 0x00, 0x8a, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x88, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x8b, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x87, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+};
+
+static unsigned char pagefe[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0xf0, 0x00, 0x00, /* 0x78-0x7f */
+
+	0xc1, 0xc2, 0xa2, 0xc3, 0xa5, 0xc4, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0xc6, 0x00, 0xc7, 0xa8, 0xa9, /* 0x88-0x8f */
+	0x00, 0xc8, 0x00, 0xc9, 0x00, 0xaa, 0x00, 0xca, /* 0x90-0x97 */
+	0x00, 0xab, 0x00, 0xcb, 0x00, 0xad, 0x00, 0xcc, /* 0x98-0x9f */
+	0x00, 0xae, 0x00, 0xcd, 0x00, 0xaf, 0x00, 0xce, /* 0xa0-0xa7 */
+	0x00, 0xcf, 0x00, 0xd0, 0x00, 0xd1, 0x00, 0xd2, /* 0xa8-0xaf */
+	0x00, 0xbc, 0x00, 0xd3, 0x00, 0xbd, 0x00, 0xd4, /* 0xb0-0xb7 */
+	0x00, 0xbe, 0x00, 0xd5, 0x00, 0xeb, 0x00, 0xd6, /* 0xb8-0xbf */
+	0x00, 0xd7, 0x00, 0x00, 0x00, 0xd8, 0x00, 0x00, /* 0xc0-0xc7 */
+	0x00, 0xdf, 0xc5, 0xd9, 0xec, 0xee, 0xed, 0xda, /* 0xc8-0xcf */
+	0xf7, 0xba, 0x00, 0xe1, 0x00, 0xf8, 0x00, 0xe2, /* 0xd0-0xd7 */
+	0x00, 0xfc, 0x00, 0xe3, 0x00, 0xfb, 0x00, 0xe4, /* 0xd8-0xdf */
+	0x00, 0xef, 0x00, 0xe5, 0x00, 0xf2, 0x00, 0xe6, /* 0xe0-0xe7 */
+	0x00, 0xf3, 0x00, 0xe7, 0xf4, 0xe8, 0x00, 0xe9, /* 0xe8-0xef */
+	0xf5, 0xfd, 0xf6, 0xea, 0x00, 0xf9, 0xfa, 0x99, /* 0xf0-0xf7 */
+	0x9a, 0x00, 0x00, 0x9d, 0x9e, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, NULL,   NULL,   page03, NULL,   NULL,   page06, NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   page22, NULL,   NULL,   page25, NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   pagefe, NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x98, 0x99, 0x9a, 0x00, 0x00, 0x9d, 0x9e, 0x00, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0x00, 0x00, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0x00, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x00, 0x91, 0x00, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x98, 0x99, 0x9a, 0x00, 0x00, 0x9d, 0x9e, 0x00, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0x00, 0x00, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0x00, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"cp864",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_cp864(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_cp864(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_cp864)
+module_exit(exit_nls_cp864)
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/fs/nls/nls_cp865.c b/fs/nls/nls_cp865.c
new file mode 100644
index 00000000000000..68d9e567fd0c57
--- /dev/null
+++ b/fs/nls/nls_cp865.c
@@ -0,0 +1,404 @@
+/*
+ * linux/fs/nls_cp865.c
+ *
+ * Charset cp865 translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x00c7, 0x00fc, 0x00e9, 0x00e2,
+	0x00e4, 0x00e0, 0x00e5, 0x00e7,
+	0x00ea, 0x00eb, 0x00e8, 0x00ef,
+	0x00ee, 0x00ec, 0x00c4, 0x00c5,
+	/* 0x90*/
+	0x00c9, 0x00e6, 0x00c6, 0x00f4,
+	0x00f6, 0x00f2, 0x00fb, 0x00f9,
+	0x00ff, 0x00d6, 0x00dc, 0x00f8,
+	0x00a3, 0x00d8, 0x20a7, 0x0192,
+	/* 0xa0*/
+	0x00e1, 0x00ed, 0x00f3, 0x00fa,
+	0x00f1, 0x00d1, 0x00aa, 0x00ba,
+	0x00bf, 0x2310, 0x00ac, 0x00bd,
+	0x00bc, 0x00a1, 0x00ab, 0x00a4,
+	/* 0xb0*/
+	0x2591, 0x2592, 0x2593, 0x2502,
+	0x2524, 0x2561, 0x2562, 0x2556,
+	0x2555, 0x2563, 0x2551, 0x2557,
+	0x255d, 0x255c, 0x255b, 0x2510,
+	/* 0xc0*/
+	0x2514, 0x2534, 0x252c, 0x251c,
+	0x2500, 0x253c, 0x255e, 0x255f,
+	0x255a, 0x2554, 0x2569, 0x2566,
+	0x2560, 0x2550, 0x256c, 0x2567,
+	/* 0xd0*/
+	0x2568, 0x2564, 0x2565, 0x2559,
+	0x2558, 0x2552, 0x2553, 0x256b,
+	0x256a, 0x2518, 0x250c, 0x2588,
+	0x2584, 0x258c, 0x2590, 0x2580,
+	/* 0xe0*/
+	0x03b1, 0x00df, 0x0393, 0x03c0,
+	0x03a3, 0x03c3, 0x00b5, 0x03c4,
+	0x03a6, 0x0398, 0x03a9, 0x03b4,
+	0x221e, 0x03c6, 0x03b5, 0x2229,
+	/* 0xf0*/
+	0x2261, 0x00b1, 0x2265, 0x2264,
+	0x2320, 0x2321, 0x00f7, 0x2248,
+	0x00b0, 0x2219, 0x00b7, 0x221a,
+	0x207f, 0x00b2, 0x25a0, 0x00a0,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xff, 0xad, 0x00, 0x9c, 0xaf, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+	0x00, 0x00, 0xa6, 0xae, 0xaa, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+	0xf8, 0xf1, 0xfd, 0x00, 0x00, 0xe6, 0x00, 0xfa, /* 0xb0-0xb7 */
+	0x00, 0x00, 0xa7, 0x00, 0xac, 0xab, 0x00, 0xa8, /* 0xb8-0xbf */
+	0x00, 0x00, 0x00, 0x00, 0x8e, 0x8f, 0x92, 0x80, /* 0xc0-0xc7 */
+	0x00, 0x90, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+	0x00, 0xa5, 0x00, 0x00, 0x00, 0x00, 0x99, 0x00, /* 0xd0-0xd7 */
+	0x9d, 0x00, 0x00, 0x00, 0x9a, 0x00, 0x00, 0xe1, /* 0xd8-0xdf */
+	0x85, 0xa0, 0x83, 0x00, 0x84, 0x86, 0x91, 0x87, /* 0xe0-0xe7 */
+	0x8a, 0x82, 0x88, 0x89, 0x8d, 0xa1, 0x8c, 0x8b, /* 0xe8-0xef */
+	0x00, 0xa4, 0x95, 0xa2, 0x93, 0x00, 0x94, 0xf6, /* 0xf0-0xf7 */
+	0x9b, 0x97, 0xa3, 0x96, 0x81, 0x00, 0x00, 0x98, /* 0xf8-0xff */
+};
+
+static unsigned char page01[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x9f, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+};
+
+static unsigned char page03[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0xe2, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0xe9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0xe4, 0x00, 0x00, 0xe8, 0x00, /* 0xa0-0xa7 */
+	0x00, 0xea, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+	0x00, 0xe0, 0x00, 0x00, 0xeb, 0xee, 0x00, 0x00, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+	0xe3, 0x00, 0x00, 0xe5, 0xe7, 0x00, 0xed, 0x00, /* 0xc0-0xc7 */
+};
+
+static unsigned char page20[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9e, /* 0xa0-0xa7 */
+};
+
+static unsigned char page22[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0xf9, 0xfb, 0x00, 0x00, 0x00, 0xec, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0xef, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0xf7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0xf0, 0x00, 0x00, 0xf3, 0xf2, 0x00, 0x00, /* 0x60-0x67 */
+};
+
+static unsigned char page23[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0xa9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0xf4, 0xf5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+};
+
+static unsigned char page25[256] = {
+	0xc4, 0x00, 0xb3, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xda, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0xbf, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0xd9, 0x00, 0x00, 0x00, 0xc3, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0xb4, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xc2, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0xc1, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xc5, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0xcd, 0xba, 0xd5, 0xd6, 0xc9, 0xb8, 0xb7, 0xbb, /* 0x50-0x57 */
+	0xd4, 0xd3, 0xc8, 0xbe, 0xbd, 0xbc, 0xc6, 0xc7, /* 0x58-0x5f */
+	0xcc, 0xb5, 0xb6, 0xb9, 0xd1, 0xd2, 0xcb, 0xcf, /* 0x60-0x67 */
+	0xd0, 0xca, 0xd8, 0xd7, 0xce, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0xdf, 0x00, 0x00, 0x00, 0xdc, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0xdb, 0x00, 0x00, 0x00, 0xdd, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0xde, 0xb0, 0xb1, 0xb2, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, page01, NULL,   page03, NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	page20, NULL,   page22, page23, NULL,   page25, NULL,   NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x87, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x84, 0x86, /* 0x88-0x8f */
+	0x82, 0x91, 0x91, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x98, 0x94, 0x81, 0x9b, 0x9c, 0x9b, 0x9e, 0x9f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa4, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0x00, 0xe3, 0xe5, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xed, 0x00, 0x00, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x9a, 0x90, 0x00, 0x8e, 0x00, 0x8f, 0x80, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x92, 0x92, 0x00, 0x99, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x99, 0x9a, 0x9d, 0x9c, 0x9d, 0x9e, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0x00, 0xa5, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0x00, 0xe1, 0xe2, 0x00, 0xe4, 0xe4, 0x00, 0x00, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0x00, 0xec, 0xe8, 0x00, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"cp865",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_cp865(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_cp865(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_cp865)
+module_exit(exit_nls_cp865)
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/fs/nls/nls_cp866.c b/fs/nls/nls_cp866.c
new file mode 100644
index 00000000000000..8860b2510e1383
--- /dev/null
+++ b/fs/nls/nls_cp866.c
@@ -0,0 +1,322 @@
+/*
+ * linux/fs/nls_cp866.c
+ *
+ * Charset cp866 translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x0410, 0x0411, 0x0412, 0x0413,
+	0x0414, 0x0415, 0x0416, 0x0417,
+	0x0418, 0x0419, 0x041a, 0x041b,
+	0x041c, 0x041d, 0x041e, 0x041f,
+	/* 0x90*/
+	0x0420, 0x0421, 0x0422, 0x0423,
+	0x0424, 0x0425, 0x0426, 0x0427,
+	0x0428, 0x0429, 0x042a, 0x042b,
+	0x042c, 0x042d, 0x042e, 0x042f,
+	/* 0xa0*/
+	0x0430, 0x0431, 0x0432, 0x0433,
+	0x0434, 0x0435, 0x0436, 0x0437,
+	0x0438, 0x0439, 0x043a, 0x043b,
+	0x043c, 0x043d, 0x043e, 0x043f,
+	/* 0xb0*/
+	0x2591, 0x2592, 0x2593, 0x2502,
+	0x2524, 0x2561, 0x2562, 0x2556,
+	0x2555, 0x2563, 0x2551, 0x2557,
+	0x255d, 0x255c, 0x255b, 0x2510,
+	/* 0xc0*/
+	0x2514, 0x2534, 0x252c, 0x251c,
+	0x2500, 0x253c, 0x255e, 0x255f,
+	0x255a, 0x2554, 0x2569, 0x2566,
+	0x2560, 0x2550, 0x256c, 0x2567,
+	/* 0xd0*/
+	0x2568, 0x2564, 0x2565, 0x2559,
+	0x2558, 0x2552, 0x2553, 0x256b,
+	0x256a, 0x2518, 0x250c, 0x2588,
+	0x2584, 0x258c, 0x2590, 0x2580,
+	/* 0xe0*/
+	0x0440, 0x0441, 0x0442, 0x0443,
+	0x0444, 0x0445, 0x0446, 0x0447,
+	0x0448, 0x0449, 0x044a, 0x044b,
+	0x044c, 0x044d, 0x044e, 0x044f,
+	/* 0xf0*/
+	0x0401, 0x0451, 0x0404, 0x0454,
+	0x0407, 0x0457, 0x040e, 0x045e,
+	0x00b0, 0x2219, 0x00b7, 0x221a,
+	0x2116, 0x00a4, 0x25a0, 0x00a0,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xff, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+	0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfa, /* 0xb0-0xb7 */
+};
+
+static unsigned char page04[256] = {
+	0x00, 0xf0, 0x00, 0x00, 0xf2, 0x00, 0x00, 0xf4, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf6, 0x00, /* 0x08-0x0f */
+	0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x10-0x17 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x18-0x1f */
+	0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x20-0x27 */
+	0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x28-0x2f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0x30-0x37 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0x38-0x3f */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0x40-0x47 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0x48-0x4f */
+	0x00, 0xf1, 0x00, 0x00, 0xf3, 0x00, 0x00, 0xf5, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf7, 0x00, /* 0x58-0x5f */
+};
+
+static unsigned char page21[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0x00, /* 0x10-0x17 */
+};
+
+static unsigned char page22[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0xf9, 0xfb, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+};
+
+static unsigned char page25[256] = {
+	0xc4, 0x00, 0xb3, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xda, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0xbf, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0xd9, 0x00, 0x00, 0x00, 0xc3, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0xb4, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xc2, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0xc1, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xc5, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0xcd, 0xba, 0xd5, 0xd6, 0xc9, 0xb8, 0xb7, 0xbb, /* 0x50-0x57 */
+	0xd4, 0xd3, 0xc8, 0xbe, 0xbd, 0xbc, 0xc6, 0xc7, /* 0x58-0x5f */
+	0xcc, 0xb5, 0xb6, 0xb9, 0xd1, 0xd2, 0xcb, 0xcf, /* 0x60-0x67 */
+	0xd0, 0xca, 0xd8, 0xd7, 0xce, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0xdf, 0x00, 0x00, 0x00, 0xdc, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0xdb, 0x00, 0x00, 0x00, 0xdd, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0xde, 0xb0, 0xb1, 0xb2, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, NULL,   NULL,   NULL,   page04, NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   page21, page22, NULL,   NULL,   page25, NULL,   NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0x80-0x87 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0x88-0x8f */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0x90-0x97 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf1, 0xf1, 0xf3, 0xf3, 0xf5, 0xf5, 0xf7, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x98-0x9f */
+	0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0xa0-0xa7 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0xe0-0xe7 */
+	0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0xe8-0xef */
+	0xf0, 0xf0, 0xf2, 0xf2, 0xf4, 0xf4, 0xf6, 0xf6, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"cp866",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_cp866(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_cp866(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_cp866)
+module_exit(exit_nls_cp866)
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/fs/nls/nls_cp869.c b/fs/nls/nls_cp869.c
new file mode 100644
index 00000000000000..dfa2bf5f37db8b
--- /dev/null
+++ b/fs/nls/nls_cp869.c
@@ -0,0 +1,332 @@
+/*
+ * linux/fs/nls_cp869.c
+ *
+ * Charset cp869 translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0386, 0x0000,
+	0x00b7, 0x00ac, 0x00a6, 0x2018,
+	0x2019, 0x0388, 0x2015, 0x0389,
+	/* 0x90*/
+	0x038a, 0x03aa, 0x038c, 0x0000,
+	0x0000, 0x038e, 0x03ab, 0x00a9,
+	0x038f, 0x00b2, 0x00b3, 0x03ac,
+	0x00a3, 0x03ad, 0x03ae, 0x03af,
+	/* 0xa0*/
+	0x03ca, 0x0390, 0x03cc, 0x03cd,
+	0x0391, 0x0392, 0x0393, 0x0394,
+	0x0395, 0x0396, 0x0397, 0x00bd,
+	0x0398, 0x0399, 0x00ab, 0x00bb,
+	/* 0xb0*/
+	0x2591, 0x2592, 0x2593, 0x2502,
+	0x2524, 0x039a, 0x039b, 0x039c,
+	0x039d, 0x2563, 0x2551, 0x2557,
+	0x255d, 0x039e, 0x039f, 0x2510,
+	/* 0xc0*/
+	0x2514, 0x2534, 0x252c, 0x251c,
+	0x2500, 0x253c, 0x03a0, 0x03a1,
+	0x255a, 0x2554, 0x2569, 0x2566,
+	0x2560, 0x2550, 0x256c, 0x03a3,
+	/* 0xd0*/
+	0x03a4, 0x03a5, 0x03a6, 0x03a7,
+	0x03a8, 0x03a9, 0x03b1, 0x03b2,
+	0x03b3, 0x2518, 0x250c, 0x2588,
+	0x2584, 0x03b4, 0x03b5, 0x2580,
+	/* 0xe0*/
+	0x03b6, 0x03b7, 0x03b8, 0x03b9,
+	0x03ba, 0x03bb, 0x03bc, 0x03bd,
+	0x03be, 0x03bf, 0x03c0, 0x03c1,
+	0x03c3, 0x03c2, 0x03c4, 0x0384,
+	/* 0xf0*/
+	0x00ad, 0x00b1, 0x03c5, 0x03c6,
+	0x03c7, 0x00a7, 0x03c8, 0x0385,
+	0x00b0, 0x00a8, 0x03c9, 0x03cb,
+	0x03b0, 0x03ce, 0x25a0, 0x00a0,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xff, 0x00, 0x00, 0x9c, 0x00, 0x00, 0x8a, 0xf5, /* 0xa0-0xa7 */
+	0xf9, 0x97, 0x00, 0xae, 0x89, 0xf0, 0x00, 0x00, /* 0xa8-0xaf */
+	0xf8, 0xf1, 0x99, 0x9a, 0x00, 0x00, 0x00, 0x88, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0xaf, 0x00, 0xab, 0x00, 0x00, /* 0xb8-0xbf */
+};
+
+static unsigned char page03[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0xef, 0xf7, 0x86, 0x00, /* 0x80-0x87 */
+	0x8d, 0x8f, 0x90, 0x00, 0x92, 0x00, 0x95, 0x98, /* 0x88-0x8f */
+	0xa1, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, /* 0x90-0x97 */
+	0xac, 0xad, 0xb5, 0xb6, 0xb7, 0xb8, 0xbd, 0xbe, /* 0x98-0x9f */
+	0xc6, 0xc7, 0x00, 0xcf, 0xd0, 0xd1, 0xd2, 0xd3, /* 0xa0-0xa7 */
+	0xd4, 0xd5, 0x91, 0x96, 0x9b, 0x9d, 0x9e, 0x9f, /* 0xa8-0xaf */
+	0xfc, 0xd6, 0xd7, 0xd8, 0xdd, 0xde, 0xe0, 0xe1, /* 0xb0-0xb7 */
+	0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, /* 0xb8-0xbf */
+	0xea, 0xeb, 0xed, 0xec, 0xee, 0xf2, 0xf3, 0xf4, /* 0xc0-0xc7 */
+	0xf6, 0xfa, 0xa0, 0xfb, 0xa2, 0xa3, 0xfd, 0x00, /* 0xc8-0xcf */
+};
+
+static unsigned char page20[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x8e, 0x00, 0x00, /* 0x10-0x17 */
+	0x8b, 0x8c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+};
+
+static unsigned char page25[256] = {
+	0xc4, 0x00, 0xb3, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xda, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0xbf, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0xd9, 0x00, 0x00, 0x00, 0xc3, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0xb4, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xc2, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0xc1, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xc5, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0xcd, 0xba, 0x00, 0x00, 0xc9, 0x00, 0x00, 0xbb, /* 0x50-0x57 */
+	0x00, 0x00, 0xc8, 0x00, 0x00, 0xbc, 0x00, 0x00, /* 0x58-0x5f */
+	0xcc, 0x00, 0x00, 0xb9, 0x00, 0x00, 0xcb, 0x00, /* 0x60-0x67 */
+	0x00, 0xca, 0x00, 0x00, 0xce, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0xdf, 0x00, 0x00, 0x00, 0xdc, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0xdb, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0xb0, 0xb1, 0xb2, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, NULL,   NULL,   page03, NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	page20, NULL,   NULL,   NULL,   NULL,   page25, NULL,   NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9b, 0x00, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x9d, 0x8e, 0x9e, /* 0x88-0x8f */
+	0x9f, 0xa0, 0xa2, 0x00, 0x00, 0xa3, 0xfb, 0x97, /* 0x90-0x97 */
+	0xfd, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xd6, 0xd7, 0xd8, 0xdd, /* 0xa0-0xa7 */
+	0xde, 0xe0, 0xe1, 0xab, 0xe2, 0xe3, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xe4, 0xe5, 0xe6, /* 0xb0-0xb7 */
+	0xe7, 0xb9, 0xba, 0xbb, 0xbc, 0xe8, 0xe9, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xea, 0xeb, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xec, /* 0xc8-0xcf */
+	0xee, 0xf2, 0xf3, 0xf4, 0xf6, 0xfa, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x86, 0x00, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x91, 0x92, 0x00, 0x00, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x98, 0x99, 0x9a, 0x86, 0x9c, 0x8d, 0x8f, 0x90, /* 0x98-0x9f */
+	0x91, 0xa1, 0x92, 0x95, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xa4, 0xa5, /* 0xd0-0xd7 */
+	0xa6, 0xd9, 0xda, 0xdb, 0xdc, 0xa7, 0xa8, 0xdf, /* 0xd8-0xdf */
+	0xa9, 0xaa, 0xac, 0xad, 0xb5, 0xb6, 0xb7, 0xb8, /* 0xe0-0xe7 */
+	0xbd, 0xbe, 0xc6, 0xc7, 0xcf, 0xcf, 0xd0, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xd1, 0xd2, 0xd3, 0xf5, 0xd4, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xd5, 0x96, 0xfc, 0x98, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"cp869",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_cp869(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_cp869(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_cp869)
+module_exit(exit_nls_cp869)
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/fs/nls/nls_cp874.c b/fs/nls/nls_cp874.c
new file mode 100644
index 00000000000000..a40cf7b9a2138e
--- /dev/null
+++ b/fs/nls/nls_cp874.c
@@ -0,0 +1,290 @@
+/*
+ * linux/fs/nls_cp874.c
+ *
+ * Charset cp874 translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x2026, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	/* 0x90*/
+	0x0000, 0x2018, 0x2019, 0x201c,
+	0x201d, 0x2022, 0x2013, 0x2014,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	/* 0xa0*/
+	0x00a0, 0x0e01, 0x0e02, 0x0e03,
+	0x0e04, 0x0e05, 0x0e06, 0x0e07,
+	0x0e08, 0x0e09, 0x0e0a, 0x0e0b,
+	0x0e0c, 0x0e0d, 0x0e0e, 0x0e0f,
+	/* 0xb0*/
+	0x0e10, 0x0e11, 0x0e12, 0x0e13,
+	0x0e14, 0x0e15, 0x0e16, 0x0e17,
+	0x0e18, 0x0e19, 0x0e1a, 0x0e1b,
+	0x0e1c, 0x0e1d, 0x0e1e, 0x0e1f,
+	/* 0xc0*/
+	0x0e20, 0x0e21, 0x0e22, 0x0e23,
+	0x0e24, 0x0e25, 0x0e26, 0x0e27,
+	0x0e28, 0x0e29, 0x0e2a, 0x0e2b,
+	0x0e2c, 0x0e2d, 0x0e2e, 0x0e2f,
+	/* 0xd0*/
+	0x0e30, 0x0e31, 0x0e32, 0x0e33,
+	0x0e34, 0x0e35, 0x0e36, 0x0e37,
+	0x0e38, 0x0e39, 0x0e3a, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0e3f,
+	/* 0xe0*/
+	0x0e40, 0x0e41, 0x0e42, 0x0e43,
+	0x0e44, 0x0e45, 0x0e46, 0x0e47,
+	0x0e48, 0x0e49, 0x0e4a, 0x0e4b,
+	0x0e4c, 0x0e4d, 0x0e4e, 0x0e4f,
+	/* 0xf0*/
+	0x0e50, 0x0e51, 0x0e52, 0x0e53,
+	0x0e54, 0x0e55, 0x0e56, 0x0e57,
+	0x0e58, 0x0e59, 0x0e5a, 0x0e5b,
+	0x0000, 0x0000, 0x0000, 0x0000,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+};
+
+static unsigned char page0e[256] = {
+	0x00, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0x00-0x07 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0x08-0x0f */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0x10-0x17 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0x18-0x1f */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0x20-0x27 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0x28-0x2f */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0x30-0x37 */
+	0xd8, 0xd9, 0xda, 0x00, 0x00, 0x00, 0x00, 0xdf, /* 0x38-0x3f */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0x40-0x47 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0x48-0x4f */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0x50-0x57 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+};
+
+static unsigned char page20[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x96, 0x97, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x91, 0x92, 0x00, 0x00, 0x93, 0x94, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x95, 0x00, 0x00, 0x00, 0x85, 0x00, /* 0x20-0x27 */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   page0e, NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	page20, NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x85, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0x00, 0x00, 0x00, 0x00, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x85, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0x00, 0x00, 0x00, 0x00, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"cp874",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_cp874(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_cp874(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_cp874)
+module_exit(exit_nls_cp874)
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/fs/nls/nls_cp932.c b/fs/nls/nls_cp932.c
new file mode 100644
index 00000000000000..72c4875cc88367
--- /dev/null
+++ b/fs/nls/nls_cp932.c
@@ -0,0 +1,7925 @@
+/*
+ * linux/fs/nls_cp932.c
+ *
+ * Charset cp932 translation tables.
+ * This translation table was generated automatically, the
+ * original table can be download from the Microsoft website.
+ * (http://www.microsoft.com/typography/unicode/unicodecp.htm)
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t c2u_81[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x3000,0x3001,0x3002,0xFF0C,0xFF0E,0x30FB,0xFF1A,0xFF1B,/* 0x40-0x47 */
+	0xFF1F,0xFF01,0x309B,0x309C,0x00B4,0xFF40,0x00A8,0xFF3E,/* 0x48-0x4F */
+	0xFFE3,0xFF3F,0x30FD,0x30FE,0x309D,0x309E,0x3003,0x4EDD,/* 0x50-0x57 */
+	0x3005,0x3006,0x3007,0x30FC,0x2015,0x2010,0xFF0F,0xFF3C,/* 0x58-0x5F */
+	0xFF5E,0x2225,0xFF5C,0x2026,0x2025,0x2018,0x2019,0x201C,/* 0x60-0x67 */
+	0x201D,0xFF08,0xFF09,0x3014,0x3015,0xFF3B,0xFF3D,0xFF5B,/* 0x68-0x6F */
+	0xFF5D,0x3008,0x3009,0x300A,0x300B,0x300C,0x300D,0x300E,/* 0x70-0x77 */
+	0x300F,0x3010,0x3011,0xFF0B,0xFF0D,0x00B1,0x00D7,0x0000,/* 0x78-0x7F */
+	
+	0x00F7,0xFF1D,0x2260,0xFF1C,0xFF1E,0x2266,0x2267,0x221E,/* 0x80-0x87 */
+	0x2234,0x2642,0x2640,0x00B0,0x2032,0x2033,0x2103,0xFFE5,/* 0x88-0x8F */
+	0xFF04,0xFFE0,0xFFE1,0xFF05,0xFF03,0xFF06,0xFF0A,0xFF20,/* 0x90-0x97 */
+	0x00A7,0x2606,0x2605,0x25CB,0x25CF,0x25CE,0x25C7,0x25C6,/* 0x98-0x9F */
+	0x25A1,0x25A0,0x25B3,0x25B2,0x25BD,0x25BC,0x203B,0x3012,/* 0xA0-0xA7 */
+	0x2192,0x2190,0x2191,0x2193,0x3013,0x0000,0x0000,0x0000,/* 0xA8-0xAF */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xB0-0xB7 */
+	0x2208,0x220B,0x2286,0x2287,0x2282,0x2283,0x222A,0x2229,/* 0xB8-0xBF */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xC0-0xC7 */
+	0x2227,0x2228,0xFFE2,0x21D2,0x21D4,0x2200,0x2203,0x0000,/* 0xC8-0xCF */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xD0-0xD7 */
+	0x0000,0x0000,0x2220,0x22A5,0x2312,0x2202,0x2207,0x2261,/* 0xD8-0xDF */
+	0x2252,0x226A,0x226B,0x221A,0x223D,0x221D,0x2235,0x222B,/* 0xE0-0xE7 */
+	0x222C,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xE8-0xEF */
+	0x212B,0x2030,0x266F,0x266D,0x266A,0x2020,0x2021,0x00B6,/* 0xF0-0xF7 */
+	0x0000,0x0000,0x0000,0x0000,0x25EF,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_82[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0xFF10,/* 0x48-0x4F */
+	0xFF11,0xFF12,0xFF13,0xFF14,0xFF15,0xFF16,0xFF17,0xFF18,/* 0x50-0x57 */
+	0xFF19,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0xFF21,0xFF22,0xFF23,0xFF24,0xFF25,0xFF26,0xFF27,0xFF28,/* 0x60-0x67 */
+	0xFF29,0xFF2A,0xFF2B,0xFF2C,0xFF2D,0xFF2E,0xFF2F,0xFF30,/* 0x68-0x6F */
+	0xFF31,0xFF32,0xFF33,0xFF34,0xFF35,0xFF36,0xFF37,0xFF38,/* 0x70-0x77 */
+	0xFF39,0xFF3A,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xFF41,0xFF42,0xFF43,0xFF44,0xFF45,0xFF46,0xFF47,/* 0x80-0x87 */
+	0xFF48,0xFF49,0xFF4A,0xFF4B,0xFF4C,0xFF4D,0xFF4E,0xFF4F,/* 0x88-0x8F */
+	0xFF50,0xFF51,0xFF52,0xFF53,0xFF54,0xFF55,0xFF56,0xFF57,/* 0x90-0x97 */
+	0xFF58,0xFF59,0xFF5A,0x0000,0x0000,0x0000,0x0000,0x3041,/* 0x98-0x9F */
+	0x3042,0x3043,0x3044,0x3045,0x3046,0x3047,0x3048,0x3049,/* 0xA0-0xA7 */
+	0x304A,0x304B,0x304C,0x304D,0x304E,0x304F,0x3050,0x3051,/* 0xA8-0xAF */
+	0x3052,0x3053,0x3054,0x3055,0x3056,0x3057,0x3058,0x3059,/* 0xB0-0xB7 */
+	0x305A,0x305B,0x305C,0x305D,0x305E,0x305F,0x3060,0x3061,/* 0xB8-0xBF */
+	0x3062,0x3063,0x3064,0x3065,0x3066,0x3067,0x3068,0x3069,/* 0xC0-0xC7 */
+	0x306A,0x306B,0x306C,0x306D,0x306E,0x306F,0x3070,0x3071,/* 0xC8-0xCF */
+	0x3072,0x3073,0x3074,0x3075,0x3076,0x3077,0x3078,0x3079,/* 0xD0-0xD7 */
+	0x307A,0x307B,0x307C,0x307D,0x307E,0x307F,0x3080,0x3081,/* 0xD8-0xDF */
+	0x3082,0x3083,0x3084,0x3085,0x3086,0x3087,0x3088,0x3089,/* 0xE0-0xE7 */
+	0x308A,0x308B,0x308C,0x308D,0x308E,0x308F,0x3090,0x3091,/* 0xE8-0xEF */
+	0x3092,0x3093,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xF0-0xF7 */
+};
+
+static wchar_t c2u_83[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x30A1,0x30A2,0x30A3,0x30A4,0x30A5,0x30A6,0x30A7,0x30A8,/* 0x40-0x47 */
+	0x30A9,0x30AA,0x30AB,0x30AC,0x30AD,0x30AE,0x30AF,0x30B0,/* 0x48-0x4F */
+	0x30B1,0x30B2,0x30B3,0x30B4,0x30B5,0x30B6,0x30B7,0x30B8,/* 0x50-0x57 */
+	0x30B9,0x30BA,0x30BB,0x30BC,0x30BD,0x30BE,0x30BF,0x30C0,/* 0x58-0x5F */
+	0x30C1,0x30C2,0x30C3,0x30C4,0x30C5,0x30C6,0x30C7,0x30C8,/* 0x60-0x67 */
+	0x30C9,0x30CA,0x30CB,0x30CC,0x30CD,0x30CE,0x30CF,0x30D0,/* 0x68-0x6F */
+	0x30D1,0x30D2,0x30D3,0x30D4,0x30D5,0x30D6,0x30D7,0x30D8,/* 0x70-0x77 */
+	0x30D9,0x30DA,0x30DB,0x30DC,0x30DD,0x30DE,0x30DF,0x0000,/* 0x78-0x7F */
+	
+	0x30E0,0x30E1,0x30E2,0x30E3,0x30E4,0x30E5,0x30E6,0x30E7,/* 0x80-0x87 */
+	0x30E8,0x30E9,0x30EA,0x30EB,0x30EC,0x30ED,0x30EE,0x30EF,/* 0x88-0x8F */
+	0x30F0,0x30F1,0x30F2,0x30F3,0x30F4,0x30F5,0x30F6,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0391,/* 0x98-0x9F */
+	0x0392,0x0393,0x0394,0x0395,0x0396,0x0397,0x0398,0x0399,/* 0xA0-0xA7 */
+	0x039A,0x039B,0x039C,0x039D,0x039E,0x039F,0x03A0,0x03A1,/* 0xA8-0xAF */
+	0x03A3,0x03A4,0x03A5,0x03A6,0x03A7,0x03A8,0x03A9,0x0000,/* 0xB0-0xB7 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x03B1,/* 0xB8-0xBF */
+	0x03B2,0x03B3,0x03B4,0x03B5,0x03B6,0x03B7,0x03B8,0x03B9,/* 0xC0-0xC7 */
+	0x03BA,0x03BB,0x03BC,0x03BD,0x03BE,0x03BF,0x03C0,0x03C1,/* 0xC8-0xCF */
+	0x03C3,0x03C4,0x03C5,0x03C6,0x03C7,0x03C8,0x03C9,0x0000,/* 0xD0-0xD7 */
+};
+
+static wchar_t c2u_84[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0410,0x0411,0x0412,0x0413,0x0414,0x0415,0x0401,0x0416,/* 0x40-0x47 */
+	0x0417,0x0418,0x0419,0x041A,0x041B,0x041C,0x041D,0x041E,/* 0x48-0x4F */
+	0x041F,0x0420,0x0421,0x0422,0x0423,0x0424,0x0425,0x0426,/* 0x50-0x57 */
+	0x0427,0x0428,0x0429,0x042A,0x042B,0x042C,0x042D,0x042E,/* 0x58-0x5F */
+	0x042F,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0430,0x0431,0x0432,0x0433,0x0434,0x0435,0x0451,0x0436,/* 0x70-0x77 */
+	0x0437,0x0438,0x0439,0x043A,0x043B,0x043C,0x043D,0x0000,/* 0x78-0x7F */
+	
+	0x043E,0x043F,0x0440,0x0441,0x0442,0x0443,0x0444,0x0445,/* 0x80-0x87 */
+	0x0446,0x0447,0x0448,0x0449,0x044A,0x044B,0x044C,0x044D,/* 0x88-0x8F */
+	0x044E,0x044F,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x2500,/* 0x98-0x9F */
+	0x2502,0x250C,0x2510,0x2518,0x2514,0x251C,0x252C,0x2524,/* 0xA0-0xA7 */
+	0x2534,0x253C,0x2501,0x2503,0x250F,0x2513,0x251B,0x2517,/* 0xA8-0xAF */
+	0x2523,0x2533,0x252B,0x253B,0x254B,0x2520,0x252F,0x2528,/* 0xB0-0xB7 */
+	0x2537,0x253F,0x251D,0x2530,0x2525,0x2538,0x2542,0x0000,/* 0xB8-0xBF */
+};
+
+static wchar_t c2u_87[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x2460,0x2461,0x2462,0x2463,0x2464,0x2465,0x2466,0x2467,/* 0x40-0x47 */
+	0x2468,0x2469,0x246A,0x246B,0x246C,0x246D,0x246E,0x246F,/* 0x48-0x4F */
+	0x2470,0x2471,0x2472,0x2473,0x2160,0x2161,0x2162,0x2163,/* 0x50-0x57 */
+	0x2164,0x2165,0x2166,0x2167,0x2168,0x2169,0x0000,0x3349,/* 0x58-0x5F */
+	0x3314,0x3322,0x334D,0x3318,0x3327,0x3303,0x3336,0x3351,/* 0x60-0x67 */
+	0x3357,0x330D,0x3326,0x3323,0x332B,0x334A,0x333B,0x339C,/* 0x68-0x6F */
+	0x339D,0x339E,0x338E,0x338F,0x33C4,0x33A1,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x337B,0x0000,/* 0x78-0x7F */
+	
+	0x301D,0x301F,0x2116,0x33CD,0x2121,0x32A4,0x32A5,0x32A6,/* 0x80-0x87 */
+	0x32A7,0x32A8,0x3231,0x3232,0x3239,0x337E,0x337D,0x337C,/* 0x88-0x8F */
+	0x2252,0x2261,0x222B,0x222E,0x2211,0x221A,0x22A5,0x2220,/* 0x90-0x97 */
+	0x221F,0x22BF,0x2235,0x2229,0x222A,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+};
+
+static wchar_t c2u_88[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x4E9C,/* 0x98-0x9F */
+	0x5516,0x5A03,0x963F,0x54C0,0x611B,0x6328,0x59F6,0x9022,/* 0xA0-0xA7 */
+	0x8475,0x831C,0x7A50,0x60AA,0x63E1,0x6E25,0x65ED,0x8466,/* 0xA8-0xAF */
+	0x82A6,0x9BF5,0x6893,0x5727,0x65A1,0x6271,0x5B9B,0x59D0,/* 0xB0-0xB7 */
+	0x867B,0x98F4,0x7D62,0x7DBE,0x9B8E,0x6216,0x7C9F,0x88B7,/* 0xB8-0xBF */
+	0x5B89,0x5EB5,0x6309,0x6697,0x6848,0x95C7,0x978D,0x674F,/* 0xC0-0xC7 */
+	0x4EE5,0x4F0A,0x4F4D,0x4F9D,0x5049,0x56F2,0x5937,0x59D4,/* 0xC8-0xCF */
+	0x5A01,0x5C09,0x60DF,0x610F,0x6170,0x6613,0x6905,0x70BA,/* 0xD0-0xD7 */
+	0x754F,0x7570,0x79FB,0x7DAD,0x7DEF,0x80C3,0x840E,0x8863,/* 0xD8-0xDF */
+	0x8B02,0x9055,0x907A,0x533B,0x4E95,0x4EA5,0x57DF,0x80B2,/* 0xE0-0xE7 */
+	0x90C1,0x78EF,0x4E00,0x58F1,0x6EA2,0x9038,0x7A32,0x8328,/* 0xE8-0xEF */
+	0x828B,0x9C2F,0x5141,0x5370,0x54BD,0x54E1,0x56E0,0x59FB,/* 0xF0-0xF7 */
+	0x5F15,0x98F2,0x6DEB,0x80E4,0x852D,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_89[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x9662,0x9670,0x96A0,0x97FB,0x540B,0x53F3,0x5B87,0x70CF,/* 0x40-0x47 */
+	0x7FBD,0x8FC2,0x96E8,0x536F,0x9D5C,0x7ABA,0x4E11,0x7893,/* 0x48-0x4F */
+	0x81FC,0x6E26,0x5618,0x5504,0x6B1D,0x851A,0x9C3B,0x59E5,/* 0x50-0x57 */
+	0x53A9,0x6D66,0x74DC,0x958F,0x5642,0x4E91,0x904B,0x96F2,/* 0x58-0x5F */
+	0x834F,0x990C,0x53E1,0x55B6,0x5B30,0x5F71,0x6620,0x66F3,/* 0x60-0x67 */
+	0x6804,0x6C38,0x6CF3,0x6D29,0x745B,0x76C8,0x7A4E,0x9834,/* 0x68-0x6F */
+	0x82F1,0x885B,0x8A60,0x92ED,0x6DB2,0x75AB,0x76CA,0x99C5,/* 0x70-0x77 */
+	0x60A6,0x8B01,0x8D8A,0x95B2,0x698E,0x53AD,0x5186,0x0000,/* 0x78-0x7F */
+	
+	0x5712,0x5830,0x5944,0x5BB4,0x5EF6,0x6028,0x63A9,0x63F4,/* 0x80-0x87 */
+	0x6CBF,0x6F14,0x708E,0x7114,0x7159,0x71D5,0x733F,0x7E01,/* 0x88-0x8F */
+	0x8276,0x82D1,0x8597,0x9060,0x925B,0x9D1B,0x5869,0x65BC,/* 0x90-0x97 */
+	0x6C5A,0x7525,0x51F9,0x592E,0x5965,0x5F80,0x5FDC,0x62BC,/* 0x98-0x9F */
+	0x65FA,0x6A2A,0x6B27,0x6BB4,0x738B,0x7FC1,0x8956,0x9D2C,/* 0xA0-0xA7 */
+	0x9D0E,0x9EC4,0x5CA1,0x6C96,0x837B,0x5104,0x5C4B,0x61B6,/* 0xA8-0xAF */
+	0x81C6,0x6876,0x7261,0x4E59,0x4FFA,0x5378,0x6069,0x6E29,/* 0xB0-0xB7 */
+	0x7A4F,0x97F3,0x4E0B,0x5316,0x4EEE,0x4F55,0x4F3D,0x4FA1,/* 0xB8-0xBF */
+	0x4F73,0x52A0,0x53EF,0x5609,0x590F,0x5AC1,0x5BB6,0x5BE1,/* 0xC0-0xC7 */
+	0x79D1,0x6687,0x679C,0x67B6,0x6B4C,0x6CB3,0x706B,0x73C2,/* 0xC8-0xCF */
+	0x798D,0x79BE,0x7A3C,0x7B87,0x82B1,0x82DB,0x8304,0x8377,/* 0xD0-0xD7 */
+	0x83EF,0x83D3,0x8766,0x8AB2,0x5629,0x8CA8,0x8FE6,0x904E,/* 0xD8-0xDF */
+	0x971E,0x868A,0x4FC4,0x5CE8,0x6211,0x7259,0x753B,0x81E5,/* 0xE0-0xE7 */
+	0x82BD,0x86FE,0x8CC0,0x96C5,0x9913,0x99D5,0x4ECB,0x4F1A,/* 0xE8-0xEF */
+	0x89E3,0x56DE,0x584A,0x58CA,0x5EFB,0x5FEB,0x602A,0x6094,/* 0xF0-0xF7 */
+	0x6062,0x61D0,0x6212,0x62D0,0x6539,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_8A[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x9B41,0x6666,0x68B0,0x6D77,0x7070,0x754C,0x7686,0x7D75,/* 0x40-0x47 */
+	0x82A5,0x87F9,0x958B,0x968E,0x8C9D,0x51F1,0x52BE,0x5916,/* 0x48-0x4F */
+	0x54B3,0x5BB3,0x5D16,0x6168,0x6982,0x6DAF,0x788D,0x84CB,/* 0x50-0x57 */
+	0x8857,0x8A72,0x93A7,0x9AB8,0x6D6C,0x99A8,0x86D9,0x57A3,/* 0x58-0x5F */
+	0x67FF,0x86CE,0x920E,0x5283,0x5687,0x5404,0x5ED3,0x62E1,/* 0x60-0x67 */
+	0x64B9,0x683C,0x6838,0x6BBB,0x7372,0x78BA,0x7A6B,0x899A,/* 0x68-0x6F */
+	0x89D2,0x8D6B,0x8F03,0x90ED,0x95A3,0x9694,0x9769,0x5B66,/* 0x70-0x77 */
+	0x5CB3,0x697D,0x984D,0x984E,0x639B,0x7B20,0x6A2B,0x0000,/* 0x78-0x7F */
+	
+	0x6A7F,0x68B6,0x9C0D,0x6F5F,0x5272,0x559D,0x6070,0x62EC,/* 0x80-0x87 */
+	0x6D3B,0x6E07,0x6ED1,0x845B,0x8910,0x8F44,0x4E14,0x9C39,/* 0x88-0x8F */
+	0x53F6,0x691B,0x6A3A,0x9784,0x682A,0x515C,0x7AC3,0x84B2,/* 0x90-0x97 */
+	0x91DC,0x938C,0x565B,0x9D28,0x6822,0x8305,0x8431,0x7CA5,/* 0x98-0x9F */
+	0x5208,0x82C5,0x74E6,0x4E7E,0x4F83,0x51A0,0x5BD2,0x520A,/* 0xA0-0xA7 */
+	0x52D8,0x52E7,0x5DFB,0x559A,0x582A,0x59E6,0x5B8C,0x5B98,/* 0xA8-0xAF */
+	0x5BDB,0x5E72,0x5E79,0x60A3,0x611F,0x6163,0x61BE,0x63DB,/* 0xB0-0xB7 */
+	0x6562,0x67D1,0x6853,0x68FA,0x6B3E,0x6B53,0x6C57,0x6F22,/* 0xB8-0xBF */
+	0x6F97,0x6F45,0x74B0,0x7518,0x76E3,0x770B,0x7AFF,0x7BA1,/* 0xC0-0xC7 */
+	0x7C21,0x7DE9,0x7F36,0x7FF0,0x809D,0x8266,0x839E,0x89B3,/* 0xC8-0xCF */
+	0x8ACC,0x8CAB,0x9084,0x9451,0x9593,0x9591,0x95A2,0x9665,/* 0xD0-0xD7 */
+	0x97D3,0x9928,0x8218,0x4E38,0x542B,0x5CB8,0x5DCC,0x73A9,/* 0xD8-0xDF */
+	0x764C,0x773C,0x5CA9,0x7FEB,0x8D0B,0x96C1,0x9811,0x9854,/* 0xE0-0xE7 */
+	0x9858,0x4F01,0x4F0E,0x5371,0x559C,0x5668,0x57FA,0x5947,/* 0xE8-0xEF */
+	0x5B09,0x5BC4,0x5C90,0x5E0C,0x5E7E,0x5FCC,0x63EE,0x673A,/* 0xF0-0xF7 */
+	0x65D7,0x65E2,0x671F,0x68CB,0x68C4,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_8B[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6A5F,0x5E30,0x6BC5,0x6C17,0x6C7D,0x757F,0x7948,0x5B63,/* 0x40-0x47 */
+	0x7A00,0x7D00,0x5FBD,0x898F,0x8A18,0x8CB4,0x8D77,0x8ECC,/* 0x48-0x4F */
+	0x8F1D,0x98E2,0x9A0E,0x9B3C,0x4E80,0x507D,0x5100,0x5993,/* 0x50-0x57 */
+	0x5B9C,0x622F,0x6280,0x64EC,0x6B3A,0x72A0,0x7591,0x7947,/* 0x58-0x5F */
+	0x7FA9,0x87FB,0x8ABC,0x8B70,0x63AC,0x83CA,0x97A0,0x5409,/* 0x60-0x67 */
+	0x5403,0x55AB,0x6854,0x6A58,0x8A70,0x7827,0x6775,0x9ECD,/* 0x68-0x6F */
+	0x5374,0x5BA2,0x811A,0x8650,0x9006,0x4E18,0x4E45,0x4EC7,/* 0x70-0x77 */
+	0x4F11,0x53CA,0x5438,0x5BAE,0x5F13,0x6025,0x6551,0x0000,/* 0x78-0x7F */
+	
+	0x673D,0x6C42,0x6C72,0x6CE3,0x7078,0x7403,0x7A76,0x7AAE,/* 0x80-0x87 */
+	0x7B08,0x7D1A,0x7CFE,0x7D66,0x65E7,0x725B,0x53BB,0x5C45,/* 0x88-0x8F */
+	0x5DE8,0x62D2,0x62E0,0x6319,0x6E20,0x865A,0x8A31,0x8DDD,/* 0x90-0x97 */
+	0x92F8,0x6F01,0x79A6,0x9B5A,0x4EA8,0x4EAB,0x4EAC,0x4F9B,/* 0x98-0x9F */
+	0x4FA0,0x50D1,0x5147,0x7AF6,0x5171,0x51F6,0x5354,0x5321,/* 0xA0-0xA7 */
+	0x537F,0x53EB,0x55AC,0x5883,0x5CE1,0x5F37,0x5F4A,0x602F,/* 0xA8-0xAF */
+	0x6050,0x606D,0x631F,0x6559,0x6A4B,0x6CC1,0x72C2,0x72ED,/* 0xB0-0xB7 */
+	0x77EF,0x80F8,0x8105,0x8208,0x854E,0x90F7,0x93E1,0x97FF,/* 0xB8-0xBF */
+	0x9957,0x9A5A,0x4EF0,0x51DD,0x5C2D,0x6681,0x696D,0x5C40,/* 0xC0-0xC7 */
+	0x66F2,0x6975,0x7389,0x6850,0x7C81,0x50C5,0x52E4,0x5747,/* 0xC8-0xCF */
+	0x5DFE,0x9326,0x65A4,0x6B23,0x6B3D,0x7434,0x7981,0x79BD,/* 0xD0-0xD7 */
+	0x7B4B,0x7DCA,0x82B9,0x83CC,0x887F,0x895F,0x8B39,0x8FD1,/* 0xD8-0xDF */
+	0x91D1,0x541F,0x9280,0x4E5D,0x5036,0x53E5,0x533A,0x72D7,/* 0xE0-0xE7 */
+	0x7396,0x77E9,0x82E6,0x8EAF,0x99C6,0x99C8,0x99D2,0x5177,/* 0xE8-0xEF */
+	0x611A,0x865E,0x55B0,0x7A7A,0x5076,0x5BD3,0x9047,0x9685,/* 0xF0-0xF7 */
+	0x4E32,0x6ADB,0x91E7,0x5C51,0x5C48,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_8C[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6398,0x7A9F,0x6C93,0x9774,0x8F61,0x7AAA,0x718A,0x9688,/* 0x40-0x47 */
+	0x7C82,0x6817,0x7E70,0x6851,0x936C,0x52F2,0x541B,0x85AB,/* 0x48-0x4F */
+	0x8A13,0x7FA4,0x8ECD,0x90E1,0x5366,0x8888,0x7941,0x4FC2,/* 0x50-0x57 */
+	0x50BE,0x5211,0x5144,0x5553,0x572D,0x73EA,0x578B,0x5951,/* 0x58-0x5F */
+	0x5F62,0x5F84,0x6075,0x6176,0x6167,0x61A9,0x63B2,0x643A,/* 0x60-0x67 */
+	0x656C,0x666F,0x6842,0x6E13,0x7566,0x7A3D,0x7CFB,0x7D4C,/* 0x68-0x6F */
+	0x7D99,0x7E4B,0x7F6B,0x830E,0x834A,0x86CD,0x8A08,0x8A63,/* 0x70-0x77 */
+	0x8B66,0x8EFD,0x981A,0x9D8F,0x82B8,0x8FCE,0x9BE8,0x0000,/* 0x78-0x7F */
+	
+	0x5287,0x621F,0x6483,0x6FC0,0x9699,0x6841,0x5091,0x6B20,/* 0x80-0x87 */
+	0x6C7A,0x6F54,0x7A74,0x7D50,0x8840,0x8A23,0x6708,0x4EF6,/* 0x88-0x8F */
+	0x5039,0x5026,0x5065,0x517C,0x5238,0x5263,0x55A7,0x570F,/* 0x90-0x97 */
+	0x5805,0x5ACC,0x5EFA,0x61B2,0x61F8,0x62F3,0x6372,0x691C,/* 0x98-0x9F */
+	0x6A29,0x727D,0x72AC,0x732E,0x7814,0x786F,0x7D79,0x770C,/* 0xA0-0xA7 */
+	0x80A9,0x898B,0x8B19,0x8CE2,0x8ED2,0x9063,0x9375,0x967A,/* 0xA8-0xAF */
+	0x9855,0x9A13,0x9E78,0x5143,0x539F,0x53B3,0x5E7B,0x5F26,/* 0xB0-0xB7 */
+	0x6E1B,0x6E90,0x7384,0x73FE,0x7D43,0x8237,0x8A00,0x8AFA,/* 0xB8-0xBF */
+	0x9650,0x4E4E,0x500B,0x53E4,0x547C,0x56FA,0x59D1,0x5B64,/* 0xC0-0xC7 */
+	0x5DF1,0x5EAB,0x5F27,0x6238,0x6545,0x67AF,0x6E56,0x72D0,/* 0xC8-0xCF */
+	0x7CCA,0x88B4,0x80A1,0x80E1,0x83F0,0x864E,0x8A87,0x8DE8,/* 0xD0-0xD7 */
+	0x9237,0x96C7,0x9867,0x9F13,0x4E94,0x4E92,0x4F0D,0x5348,/* 0xD8-0xDF */
+	0x5449,0x543E,0x5A2F,0x5F8C,0x5FA1,0x609F,0x68A7,0x6A8E,/* 0xE0-0xE7 */
+	0x745A,0x7881,0x8A9E,0x8AA4,0x8B77,0x9190,0x4E5E,0x9BC9,/* 0xE8-0xEF */
+	0x4EA4,0x4F7C,0x4FAF,0x5019,0x5016,0x5149,0x516C,0x529F,/* 0xF0-0xF7 */
+	0x52B9,0x52FE,0x539A,0x53E3,0x5411,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_8D[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x540E,0x5589,0x5751,0x57A2,0x597D,0x5B54,0x5B5D,0x5B8F,/* 0x40-0x47 */
+	0x5DE5,0x5DE7,0x5DF7,0x5E78,0x5E83,0x5E9A,0x5EB7,0x5F18,/* 0x48-0x4F */
+	0x6052,0x614C,0x6297,0x62D8,0x63A7,0x653B,0x6602,0x6643,/* 0x50-0x57 */
+	0x66F4,0x676D,0x6821,0x6897,0x69CB,0x6C5F,0x6D2A,0x6D69,/* 0x58-0x5F */
+	0x6E2F,0x6E9D,0x7532,0x7687,0x786C,0x7A3F,0x7CE0,0x7D05,/* 0x60-0x67 */
+	0x7D18,0x7D5E,0x7DB1,0x8015,0x8003,0x80AF,0x80B1,0x8154,/* 0x68-0x6F */
+	0x818F,0x822A,0x8352,0x884C,0x8861,0x8B1B,0x8CA2,0x8CFC,/* 0x70-0x77 */
+	0x90CA,0x9175,0x9271,0x783F,0x92FC,0x95A4,0x964D,0x0000,/* 0x78-0x7F */
+	
+	0x9805,0x9999,0x9AD8,0x9D3B,0x525B,0x52AB,0x53F7,0x5408,/* 0x80-0x87 */
+	0x58D5,0x62F7,0x6FE0,0x8C6A,0x8F5F,0x9EB9,0x514B,0x523B,/* 0x88-0x8F */
+	0x544A,0x56FD,0x7A40,0x9177,0x9D60,0x9ED2,0x7344,0x6F09,/* 0x90-0x97 */
+	0x8170,0x7511,0x5FFD,0x60DA,0x9AA8,0x72DB,0x8FBC,0x6B64,/* 0x98-0x9F */
+	0x9803,0x4ECA,0x56F0,0x5764,0x58BE,0x5A5A,0x6068,0x61C7,/* 0xA0-0xA7 */
+	0x660F,0x6606,0x6839,0x68B1,0x6DF7,0x75D5,0x7D3A,0x826E,/* 0xA8-0xAF */
+	0x9B42,0x4E9B,0x4F50,0x53C9,0x5506,0x5D6F,0x5DE6,0x5DEE,/* 0xB0-0xB7 */
+	0x67FB,0x6C99,0x7473,0x7802,0x8A50,0x9396,0x88DF,0x5750,/* 0xB8-0xBF */
+	0x5EA7,0x632B,0x50B5,0x50AC,0x518D,0x6700,0x54C9,0x585E,/* 0xC0-0xC7 */
+	0x59BB,0x5BB0,0x5F69,0x624D,0x63A1,0x683D,0x6B73,0x6E08,/* 0xC8-0xCF */
+	0x707D,0x91C7,0x7280,0x7815,0x7826,0x796D,0x658E,0x7D30,/* 0xD0-0xD7 */
+	0x83DC,0x88C1,0x8F09,0x969B,0x5264,0x5728,0x6750,0x7F6A,/* 0xD8-0xDF */
+	0x8CA1,0x51B4,0x5742,0x962A,0x583A,0x698A,0x80B4,0x54B2,/* 0xE0-0xE7 */
+	0x5D0E,0x57FC,0x7895,0x9DFA,0x4F5C,0x524A,0x548B,0x643E,/* 0xE8-0xEF */
+	0x6628,0x6714,0x67F5,0x7A84,0x7B56,0x7D22,0x932F,0x685C,/* 0xF0-0xF7 */
+	0x9BAD,0x7B39,0x5319,0x518A,0x5237,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_8E[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x5BDF,0x62F6,0x64AE,0x64E6,0x672D,0x6BBA,0x85A9,0x96D1,/* 0x40-0x47 */
+	0x7690,0x9BD6,0x634C,0x9306,0x9BAB,0x76BF,0x6652,0x4E09,/* 0x48-0x4F */
+	0x5098,0x53C2,0x5C71,0x60E8,0x6492,0x6563,0x685F,0x71E6,/* 0x50-0x57 */
+	0x73CA,0x7523,0x7B97,0x7E82,0x8695,0x8B83,0x8CDB,0x9178,/* 0x58-0x5F */
+	0x9910,0x65AC,0x66AB,0x6B8B,0x4ED5,0x4ED4,0x4F3A,0x4F7F,/* 0x60-0x67 */
+	0x523A,0x53F8,0x53F2,0x55E3,0x56DB,0x58EB,0x59CB,0x59C9,/* 0x68-0x6F */
+	0x59FF,0x5B50,0x5C4D,0x5E02,0x5E2B,0x5FD7,0x601D,0x6307,/* 0x70-0x77 */
+	0x652F,0x5B5C,0x65AF,0x65BD,0x65E8,0x679D,0x6B62,0x0000,/* 0x78-0x7F */
+	
+	0x6B7B,0x6C0F,0x7345,0x7949,0x79C1,0x7CF8,0x7D19,0x7D2B,/* 0x80-0x87 */
+	0x80A2,0x8102,0x81F3,0x8996,0x8A5E,0x8A69,0x8A66,0x8A8C,/* 0x88-0x8F */
+	0x8AEE,0x8CC7,0x8CDC,0x96CC,0x98FC,0x6B6F,0x4E8B,0x4F3C,/* 0x90-0x97 */
+	0x4F8D,0x5150,0x5B57,0x5BFA,0x6148,0x6301,0x6642,0x6B21,/* 0x98-0x9F */
+	0x6ECB,0x6CBB,0x723E,0x74BD,0x75D4,0x78C1,0x793A,0x800C,/* 0xA0-0xA7 */
+	0x8033,0x81EA,0x8494,0x8F9E,0x6C50,0x9E7F,0x5F0F,0x8B58,/* 0xA8-0xAF */
+	0x9D2B,0x7AFA,0x8EF8,0x5B8D,0x96EB,0x4E03,0x53F1,0x57F7,/* 0xB0-0xB7 */
+	0x5931,0x5AC9,0x5BA4,0x6089,0x6E7F,0x6F06,0x75BE,0x8CEA,/* 0xB8-0xBF */
+	0x5B9F,0x8500,0x7BE0,0x5072,0x67F4,0x829D,0x5C61,0x854A,/* 0xC0-0xC7 */
+	0x7E1E,0x820E,0x5199,0x5C04,0x6368,0x8D66,0x659C,0x716E,/* 0xC8-0xCF */
+	0x793E,0x7D17,0x8005,0x8B1D,0x8ECA,0x906E,0x86C7,0x90AA,/* 0xD0-0xD7 */
+	0x501F,0x52FA,0x5C3A,0x6753,0x707C,0x7235,0x914C,0x91C8,/* 0xD8-0xDF */
+	0x932B,0x82E5,0x5BC2,0x5F31,0x60F9,0x4E3B,0x53D6,0x5B88,/* 0xE0-0xE7 */
+	0x624B,0x6731,0x6B8A,0x72E9,0x73E0,0x7A2E,0x816B,0x8DA3,/* 0xE8-0xEF */
+	0x9152,0x9996,0x5112,0x53D7,0x546A,0x5BFF,0x6388,0x6A39,/* 0xF0-0xF7 */
+	0x7DAC,0x9700,0x56DA,0x53CE,0x5468,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_8F[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x5B97,0x5C31,0x5DDE,0x4FEE,0x6101,0x62FE,0x6D32,0x79C0,/* 0x40-0x47 */
+	0x79CB,0x7D42,0x7E4D,0x7FD2,0x81ED,0x821F,0x8490,0x8846,/* 0x48-0x4F */
+	0x8972,0x8B90,0x8E74,0x8F2F,0x9031,0x914B,0x916C,0x96C6,/* 0x50-0x57 */
+	0x919C,0x4EC0,0x4F4F,0x5145,0x5341,0x5F93,0x620E,0x67D4,/* 0x58-0x5F */
+	0x6C41,0x6E0B,0x7363,0x7E26,0x91CD,0x9283,0x53D4,0x5919,/* 0x60-0x67 */
+	0x5BBF,0x6DD1,0x795D,0x7E2E,0x7C9B,0x587E,0x719F,0x51FA,/* 0x68-0x6F */
+	0x8853,0x8FF0,0x4FCA,0x5CFB,0x6625,0x77AC,0x7AE3,0x821C,/* 0x70-0x77 */
+	0x99FF,0x51C6,0x5FAA,0x65EC,0x696F,0x6B89,0x6DF3,0x0000,/* 0x78-0x7F */
+	
+	0x6E96,0x6F64,0x76FE,0x7D14,0x5DE1,0x9075,0x9187,0x9806,/* 0x80-0x87 */
+	0x51E6,0x521D,0x6240,0x6691,0x66D9,0x6E1A,0x5EB6,0x7DD2,/* 0x88-0x8F */
+	0x7F72,0x66F8,0x85AF,0x85F7,0x8AF8,0x52A9,0x53D9,0x5973,/* 0x90-0x97 */
+	0x5E8F,0x5F90,0x6055,0x92E4,0x9664,0x50B7,0x511F,0x52DD,/* 0x98-0x9F */
+	0x5320,0x5347,0x53EC,0x54E8,0x5546,0x5531,0x5617,0x5968,/* 0xA0-0xA7 */
+	0x59BE,0x5A3C,0x5BB5,0x5C06,0x5C0F,0x5C11,0x5C1A,0x5E84,/* 0xA8-0xAF */
+	0x5E8A,0x5EE0,0x5F70,0x627F,0x6284,0x62DB,0x638C,0x6377,/* 0xB0-0xB7 */
+	0x6607,0x660C,0x662D,0x6676,0x677E,0x68A2,0x6A1F,0x6A35,/* 0xB8-0xBF */
+	0x6CBC,0x6D88,0x6E09,0x6E58,0x713C,0x7126,0x7167,0x75C7,/* 0xC0-0xC7 */
+	0x7701,0x785D,0x7901,0x7965,0x79F0,0x7AE0,0x7B11,0x7CA7,/* 0xC8-0xCF */
+	0x7D39,0x8096,0x83D6,0x848B,0x8549,0x885D,0x88F3,0x8A1F,/* 0xD0-0xD7 */
+	0x8A3C,0x8A54,0x8A73,0x8C61,0x8CDE,0x91A4,0x9266,0x937E,/* 0xD8-0xDF */
+	0x9418,0x969C,0x9798,0x4E0A,0x4E08,0x4E1E,0x4E57,0x5197,/* 0xE0-0xE7 */
+	0x5270,0x57CE,0x5834,0x58CC,0x5B22,0x5E38,0x60C5,0x64FE,/* 0xE8-0xEF */
+	0x6761,0x6756,0x6D44,0x72B6,0x7573,0x7A63,0x84B8,0x8B72,/* 0xF0-0xF7 */
+	0x91B8,0x9320,0x5631,0x57F4,0x98FE,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_90[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x62ED,0x690D,0x6B96,0x71ED,0x7E54,0x8077,0x8272,0x89E6,/* 0x40-0x47 */
+	0x98DF,0x8755,0x8FB1,0x5C3B,0x4F38,0x4FE1,0x4FB5,0x5507,/* 0x48-0x4F */
+	0x5A20,0x5BDD,0x5BE9,0x5FC3,0x614E,0x632F,0x65B0,0x664B,/* 0x50-0x57 */
+	0x68EE,0x699B,0x6D78,0x6DF1,0x7533,0x75B9,0x771F,0x795E,/* 0x58-0x5F */
+	0x79E6,0x7D33,0x81E3,0x82AF,0x85AA,0x89AA,0x8A3A,0x8EAB,/* 0x60-0x67 */
+	0x8F9B,0x9032,0x91DD,0x9707,0x4EBA,0x4EC1,0x5203,0x5875,/* 0x68-0x6F */
+	0x58EC,0x5C0B,0x751A,0x5C3D,0x814E,0x8A0A,0x8FC5,0x9663,/* 0x70-0x77 */
+	0x976D,0x7B25,0x8ACF,0x9808,0x9162,0x56F3,0x53A8,0x0000,/* 0x78-0x7F */
+	
+	0x9017,0x5439,0x5782,0x5E25,0x63A8,0x6C34,0x708A,0x7761,/* 0x80-0x87 */
+	0x7C8B,0x7FE0,0x8870,0x9042,0x9154,0x9310,0x9318,0x968F,/* 0x88-0x8F */
+	0x745E,0x9AC4,0x5D07,0x5D69,0x6570,0x67A2,0x8DA8,0x96DB,/* 0x90-0x97 */
+	0x636E,0x6749,0x6919,0x83C5,0x9817,0x96C0,0x88FE,0x6F84,/* 0x98-0x9F */
+	0x647A,0x5BF8,0x4E16,0x702C,0x755D,0x662F,0x51C4,0x5236,/* 0xA0-0xA7 */
+	0x52E2,0x59D3,0x5F81,0x6027,0x6210,0x653F,0x6574,0x661F,/* 0xA8-0xAF */
+	0x6674,0x68F2,0x6816,0x6B63,0x6E05,0x7272,0x751F,0x76DB,/* 0xB0-0xB7 */
+	0x7CBE,0x8056,0x58F0,0x88FD,0x897F,0x8AA0,0x8A93,0x8ACB,/* 0xB8-0xBF */
+	0x901D,0x9192,0x9752,0x9759,0x6589,0x7A0E,0x8106,0x96BB,/* 0xC0-0xC7 */
+	0x5E2D,0x60DC,0x621A,0x65A5,0x6614,0x6790,0x77F3,0x7A4D,/* 0xC8-0xCF */
+	0x7C4D,0x7E3E,0x810A,0x8CAC,0x8D64,0x8DE1,0x8E5F,0x78A9,/* 0xD0-0xD7 */
+	0x5207,0x62D9,0x63A5,0x6442,0x6298,0x8A2D,0x7A83,0x7BC0,/* 0xD8-0xDF */
+	0x8AAC,0x96EA,0x7D76,0x820C,0x8749,0x4ED9,0x5148,0x5343,/* 0xE0-0xE7 */
+	0x5360,0x5BA3,0x5C02,0x5C16,0x5DDD,0x6226,0x6247,0x64B0,/* 0xE8-0xEF */
+	0x6813,0x6834,0x6CC9,0x6D45,0x6D17,0x67D3,0x6F5C,0x714E,/* 0xF0-0xF7 */
+	0x717D,0x65CB,0x7A7F,0x7BAD,0x7DDA,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_91[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7E4A,0x7FA8,0x817A,0x821B,0x8239,0x85A6,0x8A6E,0x8CCE,/* 0x40-0x47 */
+	0x8DF5,0x9078,0x9077,0x92AD,0x9291,0x9583,0x9BAE,0x524D,/* 0x48-0x4F */
+	0x5584,0x6F38,0x7136,0x5168,0x7985,0x7E55,0x81B3,0x7CCE,/* 0x50-0x57 */
+	0x564C,0x5851,0x5CA8,0x63AA,0x66FE,0x66FD,0x695A,0x72D9,/* 0x58-0x5F */
+	0x758F,0x758E,0x790E,0x7956,0x79DF,0x7C97,0x7D20,0x7D44,/* 0x60-0x67 */
+	0x8607,0x8A34,0x963B,0x9061,0x9F20,0x50E7,0x5275,0x53CC,/* 0x68-0x6F */
+	0x53E2,0x5009,0x55AA,0x58EE,0x594F,0x723D,0x5B8B,0x5C64,/* 0x70-0x77 */
+	0x531D,0x60E3,0x60F3,0x635C,0x6383,0x633F,0x63BB,0x0000,/* 0x78-0x7F */
+	
+	0x64CD,0x65E9,0x66F9,0x5DE3,0x69CD,0x69FD,0x6F15,0x71E5,/* 0x80-0x87 */
+	0x4E89,0x75E9,0x76F8,0x7A93,0x7CDF,0x7DCF,0x7D9C,0x8061,/* 0x88-0x8F */
+	0x8349,0x8358,0x846C,0x84BC,0x85FB,0x88C5,0x8D70,0x9001,/* 0x90-0x97 */
+	0x906D,0x9397,0x971C,0x9A12,0x50CF,0x5897,0x618E,0x81D3,/* 0x98-0x9F */
+	0x8535,0x8D08,0x9020,0x4FC3,0x5074,0x5247,0x5373,0x606F,/* 0xA0-0xA7 */
+	0x6349,0x675F,0x6E2C,0x8DB3,0x901F,0x4FD7,0x5C5E,0x8CCA,/* 0xA8-0xAF */
+	0x65CF,0x7D9A,0x5352,0x8896,0x5176,0x63C3,0x5B58,0x5B6B,/* 0xB0-0xB7 */
+	0x5C0A,0x640D,0x6751,0x905C,0x4ED6,0x591A,0x592A,0x6C70,/* 0xB8-0xBF */
+	0x8A51,0x553E,0x5815,0x59A5,0x60F0,0x6253,0x67C1,0x8235,/* 0xC0-0xC7 */
+	0x6955,0x9640,0x99C4,0x9A28,0x4F53,0x5806,0x5BFE,0x8010,/* 0xC8-0xCF */
+	0x5CB1,0x5E2F,0x5F85,0x6020,0x614B,0x6234,0x66FF,0x6CF0,/* 0xD0-0xD7 */
+	0x6EDE,0x80CE,0x817F,0x82D4,0x888B,0x8CB8,0x9000,0x902E,/* 0xD8-0xDF */
+	0x968A,0x9EDB,0x9BDB,0x4EE3,0x53F0,0x5927,0x7B2C,0x918D,/* 0xE0-0xE7 */
+	0x984C,0x9DF9,0x6EDD,0x7027,0x5353,0x5544,0x5B85,0x6258,/* 0xE8-0xEF */
+	0x629E,0x62D3,0x6CA2,0x6FEF,0x7422,0x8A17,0x9438,0x6FC1,/* 0xF0-0xF7 */
+	0x8AFE,0x8338,0x51E7,0x86F8,0x53EA,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_92[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x53E9,0x4F46,0x9054,0x8FB0,0x596A,0x8131,0x5DFD,0x7AEA,/* 0x40-0x47 */
+	0x8FBF,0x68DA,0x8C37,0x72F8,0x9C48,0x6A3D,0x8AB0,0x4E39,/* 0x48-0x4F */
+	0x5358,0x5606,0x5766,0x62C5,0x63A2,0x65E6,0x6B4E,0x6DE1,/* 0x50-0x57 */
+	0x6E5B,0x70AD,0x77ED,0x7AEF,0x7BAA,0x7DBB,0x803D,0x80C6,/* 0x58-0x5F */
+	0x86CB,0x8A95,0x935B,0x56E3,0x58C7,0x5F3E,0x65AD,0x6696,/* 0x60-0x67 */
+	0x6A80,0x6BB5,0x7537,0x8AC7,0x5024,0x77E5,0x5730,0x5F1B,/* 0x68-0x6F */
+	0x6065,0x667A,0x6C60,0x75F4,0x7A1A,0x7F6E,0x81F4,0x8718,/* 0x70-0x77 */
+	0x9045,0x99B3,0x7BC9,0x755C,0x7AF9,0x7B51,0x84C4,0x0000,/* 0x78-0x7F */
+	
+	0x9010,0x79E9,0x7A92,0x8336,0x5AE1,0x7740,0x4E2D,0x4EF2,/* 0x80-0x87 */
+	0x5B99,0x5FE0,0x62BD,0x663C,0x67F1,0x6CE8,0x866B,0x8877,/* 0x88-0x8F */
+	0x8A3B,0x914E,0x92F3,0x99D0,0x6A17,0x7026,0x732A,0x82E7,/* 0x90-0x97 */
+	0x8457,0x8CAF,0x4E01,0x5146,0x51CB,0x558B,0x5BF5,0x5E16,/* 0x98-0x9F */
+	0x5E33,0x5E81,0x5F14,0x5F35,0x5F6B,0x5FB4,0x61F2,0x6311,/* 0xA0-0xA7 */
+	0x66A2,0x671D,0x6F6E,0x7252,0x753A,0x773A,0x8074,0x8139,/* 0xA8-0xAF */
+	0x8178,0x8776,0x8ABF,0x8ADC,0x8D85,0x8DF3,0x929A,0x9577,/* 0xB0-0xB7 */
+	0x9802,0x9CE5,0x52C5,0x6357,0x76F4,0x6715,0x6C88,0x73CD,/* 0xB8-0xBF */
+	0x8CC3,0x93AE,0x9673,0x6D25,0x589C,0x690E,0x69CC,0x8FFD,/* 0xC0-0xC7 */
+	0x939A,0x75DB,0x901A,0x585A,0x6802,0x63B4,0x69FB,0x4F43,/* 0xC8-0xCF */
+	0x6F2C,0x67D8,0x8FBB,0x8526,0x7DB4,0x9354,0x693F,0x6F70,/* 0xD0-0xD7 */
+	0x576A,0x58F7,0x5B2C,0x7D2C,0x722A,0x540A,0x91E3,0x9DB4,/* 0xD8-0xDF */
+	0x4EAD,0x4F4E,0x505C,0x5075,0x5243,0x8C9E,0x5448,0x5824,/* 0xE0-0xE7 */
+	0x5B9A,0x5E1D,0x5E95,0x5EAD,0x5EF7,0x5F1F,0x608C,0x62B5,/* 0xE8-0xEF */
+	0x633A,0x63D0,0x68AF,0x6C40,0x7887,0x798E,0x7A0B,0x7DE0,/* 0xF0-0xF7 */
+	0x8247,0x8A02,0x8AE6,0x8E44,0x9013,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_93[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x90B8,0x912D,0x91D8,0x9F0E,0x6CE5,0x6458,0x64E2,0x6575,/* 0x40-0x47 */
+	0x6EF4,0x7684,0x7B1B,0x9069,0x93D1,0x6EBA,0x54F2,0x5FB9,/* 0x48-0x4F */
+	0x64A4,0x8F4D,0x8FED,0x9244,0x5178,0x586B,0x5929,0x5C55,/* 0x50-0x57 */
+	0x5E97,0x6DFB,0x7E8F,0x751C,0x8CBC,0x8EE2,0x985B,0x70B9,/* 0x58-0x5F */
+	0x4F1D,0x6BBF,0x6FB1,0x7530,0x96FB,0x514E,0x5410,0x5835,/* 0x60-0x67 */
+	0x5857,0x59AC,0x5C60,0x5F92,0x6597,0x675C,0x6E21,0x767B,/* 0x68-0x6F */
+	0x83DF,0x8CED,0x9014,0x90FD,0x934D,0x7825,0x783A,0x52AA,/* 0x70-0x77 */
+	0x5EA6,0x571F,0x5974,0x6012,0x5012,0x515A,0x51AC,0x0000,/* 0x78-0x7F */
+	
+	0x51CD,0x5200,0x5510,0x5854,0x5858,0x5957,0x5B95,0x5CF6,/* 0x80-0x87 */
+	0x5D8B,0x60BC,0x6295,0x642D,0x6771,0x6843,0x68BC,0x68DF,/* 0x88-0x8F */
+	0x76D7,0x6DD8,0x6E6F,0x6D9B,0x706F,0x71C8,0x5F53,0x75D8,/* 0x90-0x97 */
+	0x7977,0x7B49,0x7B54,0x7B52,0x7CD6,0x7D71,0x5230,0x8463,/* 0x98-0x9F */
+	0x8569,0x85E4,0x8A0E,0x8B04,0x8C46,0x8E0F,0x9003,0x900F,/* 0xA0-0xA7 */
+	0x9419,0x9676,0x982D,0x9A30,0x95D8,0x50CD,0x52D5,0x540C,/* 0xA8-0xAF */
+	0x5802,0x5C0E,0x61A7,0x649E,0x6D1E,0x77B3,0x7AE5,0x80F4,/* 0xB0-0xB7 */
+	0x8404,0x9053,0x9285,0x5CE0,0x9D07,0x533F,0x5F97,0x5FB3,/* 0xB8-0xBF */
+	0x6D9C,0x7279,0x7763,0x79BF,0x7BE4,0x6BD2,0x72EC,0x8AAD,/* 0xC0-0xC7 */
+	0x6803,0x6A61,0x51F8,0x7A81,0x6934,0x5C4A,0x9CF6,0x82EB,/* 0xC8-0xCF */
+	0x5BC5,0x9149,0x701E,0x5678,0x5C6F,0x60C7,0x6566,0x6C8C,/* 0xD0-0xD7 */
+	0x8C5A,0x9041,0x9813,0x5451,0x66C7,0x920D,0x5948,0x90A3,/* 0xD8-0xDF */
+	0x5185,0x4E4D,0x51EA,0x8599,0x8B0E,0x7058,0x637A,0x934B,/* 0xE0-0xE7 */
+	0x6962,0x99B4,0x7E04,0x7577,0x5357,0x6960,0x8EDF,0x96E3,/* 0xE8-0xEF */
+	0x6C5D,0x4E8C,0x5C3C,0x5F10,0x8FE9,0x5302,0x8CD1,0x8089,/* 0xF0-0xF7 */
+	0x8679,0x5EFF,0x65E5,0x4E73,0x5165,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_94[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x5982,0x5C3F,0x97EE,0x4EFB,0x598A,0x5FCD,0x8A8D,0x6FE1,/* 0x40-0x47 */
+	0x79B0,0x7962,0x5BE7,0x8471,0x732B,0x71B1,0x5E74,0x5FF5,/* 0x48-0x4F */
+	0x637B,0x649A,0x71C3,0x7C98,0x4E43,0x5EFC,0x4E4B,0x57DC,/* 0x50-0x57 */
+	0x56A2,0x60A9,0x6FC3,0x7D0D,0x80FD,0x8133,0x81BF,0x8FB2,/* 0x58-0x5F */
+	0x8997,0x86A4,0x5DF4,0x628A,0x64AD,0x8987,0x6777,0x6CE2,/* 0x60-0x67 */
+	0x6D3E,0x7436,0x7834,0x5A46,0x7F75,0x82AD,0x99AC,0x4FF3,/* 0x68-0x6F */
+	0x5EC3,0x62DD,0x6392,0x6557,0x676F,0x76C3,0x724C,0x80CC,/* 0x70-0x77 */
+	0x80BA,0x8F29,0x914D,0x500D,0x57F9,0x5A92,0x6885,0x0000,/* 0x78-0x7F */
+	
+	0x6973,0x7164,0x72FD,0x8CB7,0x58F2,0x8CE0,0x966A,0x9019,/* 0x80-0x87 */
+	0x877F,0x79E4,0x77E7,0x8429,0x4F2F,0x5265,0x535A,0x62CD,/* 0x88-0x8F */
+	0x67CF,0x6CCA,0x767D,0x7B94,0x7C95,0x8236,0x8584,0x8FEB,/* 0x90-0x97 */
+	0x66DD,0x6F20,0x7206,0x7E1B,0x83AB,0x99C1,0x9EA6,0x51FD,/* 0x98-0x9F */
+	0x7BB1,0x7872,0x7BB8,0x8087,0x7B48,0x6AE8,0x5E61,0x808C,/* 0xA0-0xA7 */
+	0x7551,0x7560,0x516B,0x9262,0x6E8C,0x767A,0x9197,0x9AEA,/* 0xA8-0xAF */
+	0x4F10,0x7F70,0x629C,0x7B4F,0x95A5,0x9CE9,0x567A,0x5859,/* 0xB0-0xB7 */
+	0x86E4,0x96BC,0x4F34,0x5224,0x534A,0x53CD,0x53DB,0x5E06,/* 0xB8-0xBF */
+	0x642C,0x6591,0x677F,0x6C3E,0x6C4E,0x7248,0x72AF,0x73ED,/* 0xC0-0xC7 */
+	0x7554,0x7E41,0x822C,0x85E9,0x8CA9,0x7BC4,0x91C6,0x7169,/* 0xC8-0xCF */
+	0x9812,0x98EF,0x633D,0x6669,0x756A,0x76E4,0x78D0,0x8543,/* 0xD0-0xD7 */
+	0x86EE,0x532A,0x5351,0x5426,0x5983,0x5E87,0x5F7C,0x60B2,/* 0xD8-0xDF */
+	0x6249,0x6279,0x62AB,0x6590,0x6BD4,0x6CCC,0x75B2,0x76AE,/* 0xE0-0xE7 */
+	0x7891,0x79D8,0x7DCB,0x7F77,0x80A5,0x88AB,0x8AB9,0x8CBB,/* 0xE8-0xEF */
+	0x907F,0x975E,0x98DB,0x6A0B,0x7C38,0x5099,0x5C3E,0x5FAE,/* 0xF0-0xF7 */
+	0x6787,0x6BD8,0x7435,0x7709,0x7F8E,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_95[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x9F3B,0x67CA,0x7A17,0x5339,0x758B,0x9AED,0x5F66,0x819D,/* 0x40-0x47 */
+	0x83F1,0x8098,0x5F3C,0x5FC5,0x7562,0x7B46,0x903C,0x6867,/* 0x48-0x4F */
+	0x59EB,0x5A9B,0x7D10,0x767E,0x8B2C,0x4FF5,0x5F6A,0x6A19,/* 0x50-0x57 */
+	0x6C37,0x6F02,0x74E2,0x7968,0x8868,0x8A55,0x8C79,0x5EDF,/* 0x58-0x5F */
+	0x63CF,0x75C5,0x79D2,0x82D7,0x9328,0x92F2,0x849C,0x86ED,/* 0x60-0x67 */
+	0x9C2D,0x54C1,0x5F6C,0x658C,0x6D5C,0x7015,0x8CA7,0x8CD3,/* 0x68-0x6F */
+	0x983B,0x654F,0x74F6,0x4E0D,0x4ED8,0x57E0,0x592B,0x5A66,/* 0x70-0x77 */
+	0x5BCC,0x51A8,0x5E03,0x5E9C,0x6016,0x6276,0x6577,0x0000,/* 0x78-0x7F */
+	
+	0x65A7,0x666E,0x6D6E,0x7236,0x7B26,0x8150,0x819A,0x8299,/* 0x80-0x87 */
+	0x8B5C,0x8CA0,0x8CE6,0x8D74,0x961C,0x9644,0x4FAE,0x64AB,/* 0x88-0x8F */
+	0x6B66,0x821E,0x8461,0x856A,0x90E8,0x5C01,0x6953,0x98A8,/* 0x90-0x97 */
+	0x847A,0x8557,0x4F0F,0x526F,0x5FA9,0x5E45,0x670D,0x798F,/* 0x98-0x9F */
+	0x8179,0x8907,0x8986,0x6DF5,0x5F17,0x6255,0x6CB8,0x4ECF,/* 0xA0-0xA7 */
+	0x7269,0x9B92,0x5206,0x543B,0x5674,0x58B3,0x61A4,0x626E,/* 0xA8-0xAF */
+	0x711A,0x596E,0x7C89,0x7CDE,0x7D1B,0x96F0,0x6587,0x805E,/* 0xB0-0xB7 */
+	0x4E19,0x4F75,0x5175,0x5840,0x5E63,0x5E73,0x5F0A,0x67C4,/* 0xB8-0xBF */
+	0x4E26,0x853D,0x9589,0x965B,0x7C73,0x9801,0x50FB,0x58C1,/* 0xC0-0xC7 */
+	0x7656,0x78A7,0x5225,0x77A5,0x8511,0x7B86,0x504F,0x5909,/* 0xC8-0xCF */
+	0x7247,0x7BC7,0x7DE8,0x8FBA,0x8FD4,0x904D,0x4FBF,0x52C9,/* 0xD0-0xD7 */
+	0x5A29,0x5F01,0x97AD,0x4FDD,0x8217,0x92EA,0x5703,0x6355,/* 0xD8-0xDF */
+	0x6B69,0x752B,0x88DC,0x8F14,0x7A42,0x52DF,0x5893,0x6155,/* 0xE0-0xE7 */
+	0x620A,0x66AE,0x6BCD,0x7C3F,0x83E9,0x5023,0x4FF8,0x5305,/* 0xE8-0xEF */
+	0x5446,0x5831,0x5949,0x5B9D,0x5CF0,0x5CEF,0x5D29,0x5E96,/* 0xF0-0xF7 */
+	0x62B1,0x6367,0x653E,0x65B9,0x670B,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_96[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6CD5,0x6CE1,0x70F9,0x7832,0x7E2B,0x80DE,0x82B3,0x840C,/* 0x40-0x47 */
+	0x84EC,0x8702,0x8912,0x8A2A,0x8C4A,0x90A6,0x92D2,0x98FD,/* 0x48-0x4F */
+	0x9CF3,0x9D6C,0x4E4F,0x4EA1,0x508D,0x5256,0x574A,0x59A8,/* 0x50-0x57 */
+	0x5E3D,0x5FD8,0x5FD9,0x623F,0x66B4,0x671B,0x67D0,0x68D2,/* 0x58-0x5F */
+	0x5192,0x7D21,0x80AA,0x81A8,0x8B00,0x8C8C,0x8CBF,0x927E,/* 0x60-0x67 */
+	0x9632,0x5420,0x982C,0x5317,0x50D5,0x535C,0x58A8,0x64B2,/* 0x68-0x6F */
+	0x6734,0x7267,0x7766,0x7A46,0x91E6,0x52C3,0x6CA1,0x6B86,/* 0x70-0x77 */
+	0x5800,0x5E4C,0x5954,0x672C,0x7FFB,0x51E1,0x76C6,0x0000,/* 0x78-0x7F */
+	
+	0x6469,0x78E8,0x9B54,0x9EBB,0x57CB,0x59B9,0x6627,0x679A,/* 0x80-0x87 */
+	0x6BCE,0x54E9,0x69D9,0x5E55,0x819C,0x6795,0x9BAA,0x67FE,/* 0x88-0x8F */
+	0x9C52,0x685D,0x4EA6,0x4FE3,0x53C8,0x62B9,0x672B,0x6CAB,/* 0x90-0x97 */
+	0x8FC4,0x4FAD,0x7E6D,0x9EBF,0x4E07,0x6162,0x6E80,0x6F2B,/* 0x98-0x9F */
+	0x8513,0x5473,0x672A,0x9B45,0x5DF3,0x7B95,0x5CAC,0x5BC6,/* 0xA0-0xA7 */
+	0x871C,0x6E4A,0x84D1,0x7A14,0x8108,0x5999,0x7C8D,0x6C11,/* 0xA8-0xAF */
+	0x7720,0x52D9,0x5922,0x7121,0x725F,0x77DB,0x9727,0x9D61,/* 0xB0-0xB7 */
+	0x690B,0x5A7F,0x5A18,0x51A5,0x540D,0x547D,0x660E,0x76DF,/* 0xB8-0xBF */
+	0x8FF7,0x9298,0x9CF4,0x59EA,0x725D,0x6EC5,0x514D,0x68C9,/* 0xC0-0xC7 */
+	0x7DBF,0x7DEC,0x9762,0x9EBA,0x6478,0x6A21,0x8302,0x5984,/* 0xC8-0xCF */
+	0x5B5F,0x6BDB,0x731B,0x76F2,0x7DB2,0x8017,0x8499,0x5132,/* 0xD0-0xD7 */
+	0x6728,0x9ED9,0x76EE,0x6762,0x52FF,0x9905,0x5C24,0x623B,/* 0xD8-0xDF */
+	0x7C7E,0x8CB0,0x554F,0x60B6,0x7D0B,0x9580,0x5301,0x4E5F,/* 0xE0-0xE7 */
+	0x51B6,0x591C,0x723A,0x8036,0x91CE,0x5F25,0x77E2,0x5384,/* 0xE8-0xEF */
+	0x5F79,0x7D04,0x85AC,0x8A33,0x8E8D,0x9756,0x67F3,0x85AE,/* 0xF0-0xF7 */
+	0x9453,0x6109,0x6108,0x6CB9,0x7652,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_97[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8AED,0x8F38,0x552F,0x4F51,0x512A,0x52C7,0x53CB,0x5BA5,/* 0x40-0x47 */
+	0x5E7D,0x60A0,0x6182,0x63D6,0x6709,0x67DA,0x6E67,0x6D8C,/* 0x48-0x4F */
+	0x7336,0x7337,0x7531,0x7950,0x88D5,0x8A98,0x904A,0x9091,/* 0x50-0x57 */
+	0x90F5,0x96C4,0x878D,0x5915,0x4E88,0x4F59,0x4E0E,0x8A89,/* 0x58-0x5F */
+	0x8F3F,0x9810,0x50AD,0x5E7C,0x5996,0x5BB9,0x5EB8,0x63DA,/* 0x60-0x67 */
+	0x63FA,0x64C1,0x66DC,0x694A,0x69D8,0x6D0B,0x6EB6,0x7194,/* 0x68-0x6F */
+	0x7528,0x7AAF,0x7F8A,0x8000,0x8449,0x84C9,0x8981,0x8B21,/* 0x70-0x77 */
+	0x8E0A,0x9065,0x967D,0x990A,0x617E,0x6291,0x6B32,0x0000,/* 0x78-0x7F */
+	
+	0x6C83,0x6D74,0x7FCC,0x7FFC,0x6DC0,0x7F85,0x87BA,0x88F8,/* 0x80-0x87 */
+	0x6765,0x83B1,0x983C,0x96F7,0x6D1B,0x7D61,0x843D,0x916A,/* 0x88-0x8F */
+	0x4E71,0x5375,0x5D50,0x6B04,0x6FEB,0x85CD,0x862D,0x89A7,/* 0x90-0x97 */
+	0x5229,0x540F,0x5C65,0x674E,0x68A8,0x7406,0x7483,0x75E2,/* 0x98-0x9F */
+	0x88CF,0x88E1,0x91CC,0x96E2,0x9678,0x5F8B,0x7387,0x7ACB,/* 0xA0-0xA7 */
+	0x844E,0x63A0,0x7565,0x5289,0x6D41,0x6E9C,0x7409,0x7559,/* 0xA8-0xAF */
+	0x786B,0x7C92,0x9686,0x7ADC,0x9F8D,0x4FB6,0x616E,0x65C5,/* 0xB0-0xB7 */
+	0x865C,0x4E86,0x4EAE,0x50DA,0x4E21,0x51CC,0x5BEE,0x6599,/* 0xB8-0xBF */
+	0x6881,0x6DBC,0x731F,0x7642,0x77AD,0x7A1C,0x7CE7,0x826F,/* 0xC0-0xC7 */
+	0x8AD2,0x907C,0x91CF,0x9675,0x9818,0x529B,0x7DD1,0x502B,/* 0xC8-0xCF */
+	0x5398,0x6797,0x6DCB,0x71D0,0x7433,0x81E8,0x8F2A,0x96A3,/* 0xD0-0xD7 */
+	0x9C57,0x9E9F,0x7460,0x5841,0x6D99,0x7D2F,0x985E,0x4EE4,/* 0xD8-0xDF */
+	0x4F36,0x4F8B,0x51B7,0x52B1,0x5DBA,0x601C,0x73B2,0x793C,/* 0xE0-0xE7 */
+	0x82D3,0x9234,0x96B7,0x96F6,0x970A,0x9E97,0x9F62,0x66A6,/* 0xE8-0xEF */
+	0x6B74,0x5217,0x52A3,0x70C8,0x88C2,0x5EC9,0x604B,0x6190,/* 0xF0-0xF7 */
+	0x6F23,0x7149,0x7C3E,0x7DF4,0x806F,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_98[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x84EE,0x9023,0x932C,0x5442,0x9B6F,0x6AD3,0x7089,0x8CC2,/* 0x40-0x47 */
+	0x8DEF,0x9732,0x52B4,0x5A41,0x5ECA,0x5F04,0x6717,0x697C,/* 0x48-0x4F */
+	0x6994,0x6D6A,0x6F0F,0x7262,0x72FC,0x7BED,0x8001,0x807E,/* 0x50-0x57 */
+	0x874B,0x90CE,0x516D,0x9E93,0x7984,0x808B,0x9332,0x8AD6,/* 0x58-0x5F */
+	0x502D,0x548C,0x8A71,0x6B6A,0x8CC4,0x8107,0x60D1,0x67A0,/* 0x60-0x67 */
+	0x9DF2,0x4E99,0x4E98,0x9C10,0x8A6B,0x85C1,0x8568,0x6900,/* 0x68-0x6F */
+	0x6E7E,0x7897,0x8155,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x5F0C,/* 0x98-0x9F */
+	0x4E10,0x4E15,0x4E2A,0x4E31,0x4E36,0x4E3C,0x4E3F,0x4E42,/* 0xA0-0xA7 */
+	0x4E56,0x4E58,0x4E82,0x4E85,0x8C6B,0x4E8A,0x8212,0x5F0D,/* 0xA8-0xAF */
+	0x4E8E,0x4E9E,0x4E9F,0x4EA0,0x4EA2,0x4EB0,0x4EB3,0x4EB6,/* 0xB0-0xB7 */
+	0x4ECE,0x4ECD,0x4EC4,0x4EC6,0x4EC2,0x4ED7,0x4EDE,0x4EED,/* 0xB8-0xBF */
+	0x4EDF,0x4EF7,0x4F09,0x4F5A,0x4F30,0x4F5B,0x4F5D,0x4F57,/* 0xC0-0xC7 */
+	0x4F47,0x4F76,0x4F88,0x4F8F,0x4F98,0x4F7B,0x4F69,0x4F70,/* 0xC8-0xCF */
+	0x4F91,0x4F6F,0x4F86,0x4F96,0x5118,0x4FD4,0x4FDF,0x4FCE,/* 0xD0-0xD7 */
+	0x4FD8,0x4FDB,0x4FD1,0x4FDA,0x4FD0,0x4FE4,0x4FE5,0x501A,/* 0xD8-0xDF */
+	0x5028,0x5014,0x502A,0x5025,0x5005,0x4F1C,0x4FF6,0x5021,/* 0xE0-0xE7 */
+	0x5029,0x502C,0x4FFE,0x4FEF,0x5011,0x5006,0x5043,0x5047,/* 0xE8-0xEF */
+	0x6703,0x5055,0x5050,0x5048,0x505A,0x5056,0x506C,0x5078,/* 0xF0-0xF7 */
+	0x5080,0x509A,0x5085,0x50B4,0x50B2,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_99[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x50C9,0x50CA,0x50B3,0x50C2,0x50D6,0x50DE,0x50E5,0x50ED,/* 0x40-0x47 */
+	0x50E3,0x50EE,0x50F9,0x50F5,0x5109,0x5101,0x5102,0x5116,/* 0x48-0x4F */
+	0x5115,0x5114,0x511A,0x5121,0x513A,0x5137,0x513C,0x513B,/* 0x50-0x57 */
+	0x513F,0x5140,0x5152,0x514C,0x5154,0x5162,0x7AF8,0x5169,/* 0x58-0x5F */
+	0x516A,0x516E,0x5180,0x5182,0x56D8,0x518C,0x5189,0x518F,/* 0x60-0x67 */
+	0x5191,0x5193,0x5195,0x5196,0x51A4,0x51A6,0x51A2,0x51A9,/* 0x68-0x6F */
+	0x51AA,0x51AB,0x51B3,0x51B1,0x51B2,0x51B0,0x51B5,0x51BD,/* 0x70-0x77 */
+	0x51C5,0x51C9,0x51DB,0x51E0,0x8655,0x51E9,0x51ED,0x0000,/* 0x78-0x7F */
+	
+	0x51F0,0x51F5,0x51FE,0x5204,0x520B,0x5214,0x520E,0x5227,/* 0x80-0x87 */
+	0x522A,0x522E,0x5233,0x5239,0x524F,0x5244,0x524B,0x524C,/* 0x88-0x8F */
+	0x525E,0x5254,0x526A,0x5274,0x5269,0x5273,0x527F,0x527D,/* 0x90-0x97 */
+	0x528D,0x5294,0x5292,0x5271,0x5288,0x5291,0x8FA8,0x8FA7,/* 0x98-0x9F */
+	0x52AC,0x52AD,0x52BC,0x52B5,0x52C1,0x52CD,0x52D7,0x52DE,/* 0xA0-0xA7 */
+	0x52E3,0x52E6,0x98ED,0x52E0,0x52F3,0x52F5,0x52F8,0x52F9,/* 0xA8-0xAF */
+	0x5306,0x5308,0x7538,0x530D,0x5310,0x530F,0x5315,0x531A,/* 0xB0-0xB7 */
+	0x5323,0x532F,0x5331,0x5333,0x5338,0x5340,0x5346,0x5345,/* 0xB8-0xBF */
+	0x4E17,0x5349,0x534D,0x51D6,0x535E,0x5369,0x536E,0x5918,/* 0xC0-0xC7 */
+	0x537B,0x5377,0x5382,0x5396,0x53A0,0x53A6,0x53A5,0x53AE,/* 0xC8-0xCF */
+	0x53B0,0x53B6,0x53C3,0x7C12,0x96D9,0x53DF,0x66FC,0x71EE,/* 0xD0-0xD7 */
+	0x53EE,0x53E8,0x53ED,0x53FA,0x5401,0x543D,0x5440,0x542C,/* 0xD8-0xDF */
+	0x542D,0x543C,0x542E,0x5436,0x5429,0x541D,0x544E,0x548F,/* 0xE0-0xE7 */
+	0x5475,0x548E,0x545F,0x5471,0x5477,0x5470,0x5492,0x547B,/* 0xE8-0xEF */
+	0x5480,0x5476,0x5484,0x5490,0x5486,0x54C7,0x54A2,0x54B8,/* 0xF0-0xF7 */
+	0x54A5,0x54AC,0x54C4,0x54C8,0x54A8,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_9A[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x54AB,0x54C2,0x54A4,0x54BE,0x54BC,0x54D8,0x54E5,0x54E6,/* 0x40-0x47 */
+	0x550F,0x5514,0x54FD,0x54EE,0x54ED,0x54FA,0x54E2,0x5539,/* 0x48-0x4F */
+	0x5540,0x5563,0x554C,0x552E,0x555C,0x5545,0x5556,0x5557,/* 0x50-0x57 */
+	0x5538,0x5533,0x555D,0x5599,0x5580,0x54AF,0x558A,0x559F,/* 0x58-0x5F */
+	0x557B,0x557E,0x5598,0x559E,0x55AE,0x557C,0x5583,0x55A9,/* 0x60-0x67 */
+	0x5587,0x55A8,0x55DA,0x55C5,0x55DF,0x55C4,0x55DC,0x55E4,/* 0x68-0x6F */
+	0x55D4,0x5614,0x55F7,0x5616,0x55FE,0x55FD,0x561B,0x55F9,/* 0x70-0x77 */
+	0x564E,0x5650,0x71DF,0x5634,0x5636,0x5632,0x5638,0x0000,/* 0x78-0x7F */
+	
+	0x566B,0x5664,0x562F,0x566C,0x566A,0x5686,0x5680,0x568A,/* 0x80-0x87 */
+	0x56A0,0x5694,0x568F,0x56A5,0x56AE,0x56B6,0x56B4,0x56C2,/* 0x88-0x8F */
+	0x56BC,0x56C1,0x56C3,0x56C0,0x56C8,0x56CE,0x56D1,0x56D3,/* 0x90-0x97 */
+	0x56D7,0x56EE,0x56F9,0x5700,0x56FF,0x5704,0x5709,0x5708,/* 0x98-0x9F */
+	0x570B,0x570D,0x5713,0x5718,0x5716,0x55C7,0x571C,0x5726,/* 0xA0-0xA7 */
+	0x5737,0x5738,0x574E,0x573B,0x5740,0x574F,0x5769,0x57C0,/* 0xA8-0xAF */
+	0x5788,0x5761,0x577F,0x5789,0x5793,0x57A0,0x57B3,0x57A4,/* 0xB0-0xB7 */
+	0x57AA,0x57B0,0x57C3,0x57C6,0x57D4,0x57D2,0x57D3,0x580A,/* 0xB8-0xBF */
+	0x57D6,0x57E3,0x580B,0x5819,0x581D,0x5872,0x5821,0x5862,/* 0xC0-0xC7 */
+	0x584B,0x5870,0x6BC0,0x5852,0x583D,0x5879,0x5885,0x58B9,/* 0xC8-0xCF */
+	0x589F,0x58AB,0x58BA,0x58DE,0x58BB,0x58B8,0x58AE,0x58C5,/* 0xD0-0xD7 */
+	0x58D3,0x58D1,0x58D7,0x58D9,0x58D8,0x58E5,0x58DC,0x58E4,/* 0xD8-0xDF */
+	0x58DF,0x58EF,0x58FA,0x58F9,0x58FB,0x58FC,0x58FD,0x5902,/* 0xE0-0xE7 */
+	0x590A,0x5910,0x591B,0x68A6,0x5925,0x592C,0x592D,0x5932,/* 0xE8-0xEF */
+	0x5938,0x593E,0x7AD2,0x5955,0x5950,0x594E,0x595A,0x5958,/* 0xF0-0xF7 */
+	0x5962,0x5960,0x5967,0x596C,0x5969,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_9B[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x5978,0x5981,0x599D,0x4F5E,0x4FAB,0x59A3,0x59B2,0x59C6,/* 0x40-0x47 */
+	0x59E8,0x59DC,0x598D,0x59D9,0x59DA,0x5A25,0x5A1F,0x5A11,/* 0x48-0x4F */
+	0x5A1C,0x5A09,0x5A1A,0x5A40,0x5A6C,0x5A49,0x5A35,0x5A36,/* 0x50-0x57 */
+	0x5A62,0x5A6A,0x5A9A,0x5ABC,0x5ABE,0x5ACB,0x5AC2,0x5ABD,/* 0x58-0x5F */
+	0x5AE3,0x5AD7,0x5AE6,0x5AE9,0x5AD6,0x5AFA,0x5AFB,0x5B0C,/* 0x60-0x67 */
+	0x5B0B,0x5B16,0x5B32,0x5AD0,0x5B2A,0x5B36,0x5B3E,0x5B43,/* 0x68-0x6F */
+	0x5B45,0x5B40,0x5B51,0x5B55,0x5B5A,0x5B5B,0x5B65,0x5B69,/* 0x70-0x77 */
+	0x5B70,0x5B73,0x5B75,0x5B78,0x6588,0x5B7A,0x5B80,0x0000,/* 0x78-0x7F */
+	
+	0x5B83,0x5BA6,0x5BB8,0x5BC3,0x5BC7,0x5BC9,0x5BD4,0x5BD0,/* 0x80-0x87 */
+	0x5BE4,0x5BE6,0x5BE2,0x5BDE,0x5BE5,0x5BEB,0x5BF0,0x5BF6,/* 0x88-0x8F */
+	0x5BF3,0x5C05,0x5C07,0x5C08,0x5C0D,0x5C13,0x5C20,0x5C22,/* 0x90-0x97 */
+	0x5C28,0x5C38,0x5C39,0x5C41,0x5C46,0x5C4E,0x5C53,0x5C50,/* 0x98-0x9F */
+	0x5C4F,0x5B71,0x5C6C,0x5C6E,0x4E62,0x5C76,0x5C79,0x5C8C,/* 0xA0-0xA7 */
+	0x5C91,0x5C94,0x599B,0x5CAB,0x5CBB,0x5CB6,0x5CBC,0x5CB7,/* 0xA8-0xAF */
+	0x5CC5,0x5CBE,0x5CC7,0x5CD9,0x5CE9,0x5CFD,0x5CFA,0x5CED,/* 0xB0-0xB7 */
+	0x5D8C,0x5CEA,0x5D0B,0x5D15,0x5D17,0x5D5C,0x5D1F,0x5D1B,/* 0xB8-0xBF */
+	0x5D11,0x5D14,0x5D22,0x5D1A,0x5D19,0x5D18,0x5D4C,0x5D52,/* 0xC0-0xC7 */
+	0x5D4E,0x5D4B,0x5D6C,0x5D73,0x5D76,0x5D87,0x5D84,0x5D82,/* 0xC8-0xCF */
+	0x5DA2,0x5D9D,0x5DAC,0x5DAE,0x5DBD,0x5D90,0x5DB7,0x5DBC,/* 0xD0-0xD7 */
+	0x5DC9,0x5DCD,0x5DD3,0x5DD2,0x5DD6,0x5DDB,0x5DEB,0x5DF2,/* 0xD8-0xDF */
+	0x5DF5,0x5E0B,0x5E1A,0x5E19,0x5E11,0x5E1B,0x5E36,0x5E37,/* 0xE0-0xE7 */
+	0x5E44,0x5E43,0x5E40,0x5E4E,0x5E57,0x5E54,0x5E5F,0x5E62,/* 0xE8-0xEF */
+	0x5E64,0x5E47,0x5E75,0x5E76,0x5E7A,0x9EBC,0x5E7F,0x5EA0,/* 0xF0-0xF7 */
+	0x5EC1,0x5EC2,0x5EC8,0x5ED0,0x5ECF,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_9C[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x5ED6,0x5EE3,0x5EDD,0x5EDA,0x5EDB,0x5EE2,0x5EE1,0x5EE8,/* 0x40-0x47 */
+	0x5EE9,0x5EEC,0x5EF1,0x5EF3,0x5EF0,0x5EF4,0x5EF8,0x5EFE,/* 0x48-0x4F */
+	0x5F03,0x5F09,0x5F5D,0x5F5C,0x5F0B,0x5F11,0x5F16,0x5F29,/* 0x50-0x57 */
+	0x5F2D,0x5F38,0x5F41,0x5F48,0x5F4C,0x5F4E,0x5F2F,0x5F51,/* 0x58-0x5F */
+	0x5F56,0x5F57,0x5F59,0x5F61,0x5F6D,0x5F73,0x5F77,0x5F83,/* 0x60-0x67 */
+	0x5F82,0x5F7F,0x5F8A,0x5F88,0x5F91,0x5F87,0x5F9E,0x5F99,/* 0x68-0x6F */
+	0x5F98,0x5FA0,0x5FA8,0x5FAD,0x5FBC,0x5FD6,0x5FFB,0x5FE4,/* 0x70-0x77 */
+	0x5FF8,0x5FF1,0x5FDD,0x60B3,0x5FFF,0x6021,0x6060,0x0000,/* 0x78-0x7F */
+	
+	0x6019,0x6010,0x6029,0x600E,0x6031,0x601B,0x6015,0x602B,/* 0x80-0x87 */
+	0x6026,0x600F,0x603A,0x605A,0x6041,0x606A,0x6077,0x605F,/* 0x88-0x8F */
+	0x604A,0x6046,0x604D,0x6063,0x6043,0x6064,0x6042,0x606C,/* 0x90-0x97 */
+	0x606B,0x6059,0x6081,0x608D,0x60E7,0x6083,0x609A,0x6084,/* 0x98-0x9F */
+	0x609B,0x6096,0x6097,0x6092,0x60A7,0x608B,0x60E1,0x60B8,/* 0xA0-0xA7 */
+	0x60E0,0x60D3,0x60B4,0x5FF0,0x60BD,0x60C6,0x60B5,0x60D8,/* 0xA8-0xAF */
+	0x614D,0x6115,0x6106,0x60F6,0x60F7,0x6100,0x60F4,0x60FA,/* 0xB0-0xB7 */
+	0x6103,0x6121,0x60FB,0x60F1,0x610D,0x610E,0x6147,0x613E,/* 0xB8-0xBF */
+	0x6128,0x6127,0x614A,0x613F,0x613C,0x612C,0x6134,0x613D,/* 0xC0-0xC7 */
+	0x6142,0x6144,0x6173,0x6177,0x6158,0x6159,0x615A,0x616B,/* 0xC8-0xCF */
+	0x6174,0x616F,0x6165,0x6171,0x615F,0x615D,0x6153,0x6175,/* 0xD0-0xD7 */
+	0x6199,0x6196,0x6187,0x61AC,0x6194,0x619A,0x618A,0x6191,/* 0xD8-0xDF */
+	0x61AB,0x61AE,0x61CC,0x61CA,0x61C9,0x61F7,0x61C8,0x61C3,/* 0xE0-0xE7 */
+	0x61C6,0x61BA,0x61CB,0x7F79,0x61CD,0x61E6,0x61E3,0x61F6,/* 0xE8-0xEF */
+	0x61FA,0x61F4,0x61FF,0x61FD,0x61FC,0x61FE,0x6200,0x6208,/* 0xF0-0xF7 */
+	0x6209,0x620D,0x620C,0x6214,0x621B,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_9D[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x621E,0x6221,0x622A,0x622E,0x6230,0x6232,0x6233,0x6241,/* 0x40-0x47 */
+	0x624E,0x625E,0x6263,0x625B,0x6260,0x6268,0x627C,0x6282,/* 0x48-0x4F */
+	0x6289,0x627E,0x6292,0x6293,0x6296,0x62D4,0x6283,0x6294,/* 0x50-0x57 */
+	0x62D7,0x62D1,0x62BB,0x62CF,0x62FF,0x62C6,0x64D4,0x62C8,/* 0x58-0x5F */
+	0x62DC,0x62CC,0x62CA,0x62C2,0x62C7,0x629B,0x62C9,0x630C,/* 0x60-0x67 */
+	0x62EE,0x62F1,0x6327,0x6302,0x6308,0x62EF,0x62F5,0x6350,/* 0x68-0x6F */
+	0x633E,0x634D,0x641C,0x634F,0x6396,0x638E,0x6380,0x63AB,/* 0x70-0x77 */
+	0x6376,0x63A3,0x638F,0x6389,0x639F,0x63B5,0x636B,0x0000,/* 0x78-0x7F */
+	
+	0x6369,0x63BE,0x63E9,0x63C0,0x63C6,0x63E3,0x63C9,0x63D2,/* 0x80-0x87 */
+	0x63F6,0x63C4,0x6416,0x6434,0x6406,0x6413,0x6426,0x6436,/* 0x88-0x8F */
+	0x651D,0x6417,0x6428,0x640F,0x6467,0x646F,0x6476,0x644E,/* 0x90-0x97 */
+	0x652A,0x6495,0x6493,0x64A5,0x64A9,0x6488,0x64BC,0x64DA,/* 0x98-0x9F */
+	0x64D2,0x64C5,0x64C7,0x64BB,0x64D8,0x64C2,0x64F1,0x64E7,/* 0xA0-0xA7 */
+	0x8209,0x64E0,0x64E1,0x62AC,0x64E3,0x64EF,0x652C,0x64F6,/* 0xA8-0xAF */
+	0x64F4,0x64F2,0x64FA,0x6500,0x64FD,0x6518,0x651C,0x6505,/* 0xB0-0xB7 */
+	0x6524,0x6523,0x652B,0x6534,0x6535,0x6537,0x6536,0x6538,/* 0xB8-0xBF */
+	0x754B,0x6548,0x6556,0x6555,0x654D,0x6558,0x655E,0x655D,/* 0xC0-0xC7 */
+	0x6572,0x6578,0x6582,0x6583,0x8B8A,0x659B,0x659F,0x65AB,/* 0xC8-0xCF */
+	0x65B7,0x65C3,0x65C6,0x65C1,0x65C4,0x65CC,0x65D2,0x65DB,/* 0xD0-0xD7 */
+	0x65D9,0x65E0,0x65E1,0x65F1,0x6772,0x660A,0x6603,0x65FB,/* 0xD8-0xDF */
+	0x6773,0x6635,0x6636,0x6634,0x661C,0x664F,0x6644,0x6649,/* 0xE0-0xE7 */
+	0x6641,0x665E,0x665D,0x6664,0x6667,0x6668,0x665F,0x6662,/* 0xE8-0xEF */
+	0x6670,0x6683,0x6688,0x668E,0x6689,0x6684,0x6698,0x669D,/* 0xF0-0xF7 */
+	0x66C1,0x66B9,0x66C9,0x66BE,0x66BC,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_9E[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x66C4,0x66B8,0x66D6,0x66DA,0x66E0,0x663F,0x66E6,0x66E9,/* 0x40-0x47 */
+	0x66F0,0x66F5,0x66F7,0x670F,0x6716,0x671E,0x6726,0x6727,/* 0x48-0x4F */
+	0x9738,0x672E,0x673F,0x6736,0x6741,0x6738,0x6737,0x6746,/* 0x50-0x57 */
+	0x675E,0x6760,0x6759,0x6763,0x6764,0x6789,0x6770,0x67A9,/* 0x58-0x5F */
+	0x677C,0x676A,0x678C,0x678B,0x67A6,0x67A1,0x6785,0x67B7,/* 0x60-0x67 */
+	0x67EF,0x67B4,0x67EC,0x67B3,0x67E9,0x67B8,0x67E4,0x67DE,/* 0x68-0x6F */
+	0x67DD,0x67E2,0x67EE,0x67B9,0x67CE,0x67C6,0x67E7,0x6A9C,/* 0x70-0x77 */
+	0x681E,0x6846,0x6829,0x6840,0x684D,0x6832,0x684E,0x0000,/* 0x78-0x7F */
+	
+	0x68B3,0x682B,0x6859,0x6863,0x6877,0x687F,0x689F,0x688F,/* 0x80-0x87 */
+	0x68AD,0x6894,0x689D,0x689B,0x6883,0x6AAE,0x68B9,0x6874,/* 0x88-0x8F */
+	0x68B5,0x68A0,0x68BA,0x690F,0x688D,0x687E,0x6901,0x68CA,/* 0x90-0x97 */
+	0x6908,0x68D8,0x6922,0x6926,0x68E1,0x690C,0x68CD,0x68D4,/* 0x98-0x9F */
+	0x68E7,0x68D5,0x6936,0x6912,0x6904,0x68D7,0x68E3,0x6925,/* 0xA0-0xA7 */
+	0x68F9,0x68E0,0x68EF,0x6928,0x692A,0x691A,0x6923,0x6921,/* 0xA8-0xAF */
+	0x68C6,0x6979,0x6977,0x695C,0x6978,0x696B,0x6954,0x697E,/* 0xB0-0xB7 */
+	0x696E,0x6939,0x6974,0x693D,0x6959,0x6930,0x6961,0x695E,/* 0xB8-0xBF */
+	0x695D,0x6981,0x696A,0x69B2,0x69AE,0x69D0,0x69BF,0x69C1,/* 0xC0-0xC7 */
+	0x69D3,0x69BE,0x69CE,0x5BE8,0x69CA,0x69DD,0x69BB,0x69C3,/* 0xC8-0xCF */
+	0x69A7,0x6A2E,0x6991,0x69A0,0x699C,0x6995,0x69B4,0x69DE,/* 0xD0-0xD7 */
+	0x69E8,0x6A02,0x6A1B,0x69FF,0x6B0A,0x69F9,0x69F2,0x69E7,/* 0xD8-0xDF */
+	0x6A05,0x69B1,0x6A1E,0x69ED,0x6A14,0x69EB,0x6A0A,0x6A12,/* 0xE0-0xE7 */
+	0x6AC1,0x6A23,0x6A13,0x6A44,0x6A0C,0x6A72,0x6A36,0x6A78,/* 0xE8-0xEF */
+	0x6A47,0x6A62,0x6A59,0x6A66,0x6A48,0x6A38,0x6A22,0x6A90,/* 0xF0-0xF7 */
+	0x6A8D,0x6AA0,0x6A84,0x6AA2,0x6AA3,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_9F[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6A97,0x8617,0x6ABB,0x6AC3,0x6AC2,0x6AB8,0x6AB3,0x6AAC,/* 0x40-0x47 */
+	0x6ADE,0x6AD1,0x6ADF,0x6AAA,0x6ADA,0x6AEA,0x6AFB,0x6B05,/* 0x48-0x4F */
+	0x8616,0x6AFA,0x6B12,0x6B16,0x9B31,0x6B1F,0x6B38,0x6B37,/* 0x50-0x57 */
+	0x76DC,0x6B39,0x98EE,0x6B47,0x6B43,0x6B49,0x6B50,0x6B59,/* 0x58-0x5F */
+	0x6B54,0x6B5B,0x6B5F,0x6B61,0x6B78,0x6B79,0x6B7F,0x6B80,/* 0x60-0x67 */
+	0x6B84,0x6B83,0x6B8D,0x6B98,0x6B95,0x6B9E,0x6BA4,0x6BAA,/* 0x68-0x6F */
+	0x6BAB,0x6BAF,0x6BB2,0x6BB1,0x6BB3,0x6BB7,0x6BBC,0x6BC6,/* 0x70-0x77 */
+	0x6BCB,0x6BD3,0x6BDF,0x6BEC,0x6BEB,0x6BF3,0x6BEF,0x0000,/* 0x78-0x7F */
+	
+	0x9EBE,0x6C08,0x6C13,0x6C14,0x6C1B,0x6C24,0x6C23,0x6C5E,/* 0x80-0x87 */
+	0x6C55,0x6C62,0x6C6A,0x6C82,0x6C8D,0x6C9A,0x6C81,0x6C9B,/* 0x88-0x8F */
+	0x6C7E,0x6C68,0x6C73,0x6C92,0x6C90,0x6CC4,0x6CF1,0x6CD3,/* 0x90-0x97 */
+	0x6CBD,0x6CD7,0x6CC5,0x6CDD,0x6CAE,0x6CB1,0x6CBE,0x6CBA,/* 0x98-0x9F */
+	0x6CDB,0x6CEF,0x6CD9,0x6CEA,0x6D1F,0x884D,0x6D36,0x6D2B,/* 0xA0-0xA7 */
+	0x6D3D,0x6D38,0x6D19,0x6D35,0x6D33,0x6D12,0x6D0C,0x6D63,/* 0xA8-0xAF */
+	0x6D93,0x6D64,0x6D5A,0x6D79,0x6D59,0x6D8E,0x6D95,0x6FE4,/* 0xB0-0xB7 */
+	0x6D85,0x6DF9,0x6E15,0x6E0A,0x6DB5,0x6DC7,0x6DE6,0x6DB8,/* 0xB8-0xBF */
+	0x6DC6,0x6DEC,0x6DDE,0x6DCC,0x6DE8,0x6DD2,0x6DC5,0x6DFA,/* 0xC0-0xC7 */
+	0x6DD9,0x6DE4,0x6DD5,0x6DEA,0x6DEE,0x6E2D,0x6E6E,0x6E2E,/* 0xC8-0xCF */
+	0x6E19,0x6E72,0x6E5F,0x6E3E,0x6E23,0x6E6B,0x6E2B,0x6E76,/* 0xD0-0xD7 */
+	0x6E4D,0x6E1F,0x6E43,0x6E3A,0x6E4E,0x6E24,0x6EFF,0x6E1D,/* 0xD8-0xDF */
+	0x6E38,0x6E82,0x6EAA,0x6E98,0x6EC9,0x6EB7,0x6ED3,0x6EBD,/* 0xE0-0xE7 */
+	0x6EAF,0x6EC4,0x6EB2,0x6ED4,0x6ED5,0x6E8F,0x6EA5,0x6EC2,/* 0xE8-0xEF */
+	0x6E9F,0x6F41,0x6F11,0x704C,0x6EEC,0x6EF8,0x6EFE,0x6F3F,/* 0xF0-0xF7 */
+	0x6EF2,0x6F31,0x6EEF,0x6F32,0x6ECC,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E0[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6F3E,0x6F13,0x6EF7,0x6F86,0x6F7A,0x6F78,0x6F81,0x6F80,/* 0x40-0x47 */
+	0x6F6F,0x6F5B,0x6FF3,0x6F6D,0x6F82,0x6F7C,0x6F58,0x6F8E,/* 0x48-0x4F */
+	0x6F91,0x6FC2,0x6F66,0x6FB3,0x6FA3,0x6FA1,0x6FA4,0x6FB9,/* 0x50-0x57 */
+	0x6FC6,0x6FAA,0x6FDF,0x6FD5,0x6FEC,0x6FD4,0x6FD8,0x6FF1,/* 0x58-0x5F */
+	0x6FEE,0x6FDB,0x7009,0x700B,0x6FFA,0x7011,0x7001,0x700F,/* 0x60-0x67 */
+	0x6FFE,0x701B,0x701A,0x6F74,0x701D,0x7018,0x701F,0x7030,/* 0x68-0x6F */
+	0x703E,0x7032,0x7051,0x7063,0x7099,0x7092,0x70AF,0x70F1,/* 0x70-0x77 */
+	0x70AC,0x70B8,0x70B3,0x70AE,0x70DF,0x70CB,0x70DD,0x0000,/* 0x78-0x7F */
+	
+	0x70D9,0x7109,0x70FD,0x711C,0x7119,0x7165,0x7155,0x7188,/* 0x80-0x87 */
+	0x7166,0x7162,0x714C,0x7156,0x716C,0x718F,0x71FB,0x7184,/* 0x88-0x8F */
+	0x7195,0x71A8,0x71AC,0x71D7,0x71B9,0x71BE,0x71D2,0x71C9,/* 0x90-0x97 */
+	0x71D4,0x71CE,0x71E0,0x71EC,0x71E7,0x71F5,0x71FC,0x71F9,/* 0x98-0x9F */
+	0x71FF,0x720D,0x7210,0x721B,0x7228,0x722D,0x722C,0x7230,/* 0xA0-0xA7 */
+	0x7232,0x723B,0x723C,0x723F,0x7240,0x7246,0x724B,0x7258,/* 0xA8-0xAF */
+	0x7274,0x727E,0x7282,0x7281,0x7287,0x7292,0x7296,0x72A2,/* 0xB0-0xB7 */
+	0x72A7,0x72B9,0x72B2,0x72C3,0x72C6,0x72C4,0x72CE,0x72D2,/* 0xB8-0xBF */
+	0x72E2,0x72E0,0x72E1,0x72F9,0x72F7,0x500F,0x7317,0x730A,/* 0xC0-0xC7 */
+	0x731C,0x7316,0x731D,0x7334,0x732F,0x7329,0x7325,0x733E,/* 0xC8-0xCF */
+	0x734E,0x734F,0x9ED8,0x7357,0x736A,0x7368,0x7370,0x7378,/* 0xD0-0xD7 */
+	0x7375,0x737B,0x737A,0x73C8,0x73B3,0x73CE,0x73BB,0x73C0,/* 0xD8-0xDF */
+	0x73E5,0x73EE,0x73DE,0x74A2,0x7405,0x746F,0x7425,0x73F8,/* 0xE0-0xE7 */
+	0x7432,0x743A,0x7455,0x743F,0x745F,0x7459,0x7441,0x745C,/* 0xE8-0xEF */
+	0x7469,0x7470,0x7463,0x746A,0x7476,0x747E,0x748B,0x749E,/* 0xF0-0xF7 */
+	0x74A7,0x74CA,0x74CF,0x74D4,0x73F1,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E1[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x74E0,0x74E3,0x74E7,0x74E9,0x74EE,0x74F2,0x74F0,0x74F1,/* 0x40-0x47 */
+	0x74F8,0x74F7,0x7504,0x7503,0x7505,0x750C,0x750E,0x750D,/* 0x48-0x4F */
+	0x7515,0x7513,0x751E,0x7526,0x752C,0x753C,0x7544,0x754D,/* 0x50-0x57 */
+	0x754A,0x7549,0x755B,0x7546,0x755A,0x7569,0x7564,0x7567,/* 0x58-0x5F */
+	0x756B,0x756D,0x7578,0x7576,0x7586,0x7587,0x7574,0x758A,/* 0x60-0x67 */
+	0x7589,0x7582,0x7594,0x759A,0x759D,0x75A5,0x75A3,0x75C2,/* 0x68-0x6F */
+	0x75B3,0x75C3,0x75B5,0x75BD,0x75B8,0x75BC,0x75B1,0x75CD,/* 0x70-0x77 */
+	0x75CA,0x75D2,0x75D9,0x75E3,0x75DE,0x75FE,0x75FF,0x0000,/* 0x78-0x7F */
+	
+	0x75FC,0x7601,0x75F0,0x75FA,0x75F2,0x75F3,0x760B,0x760D,/* 0x80-0x87 */
+	0x7609,0x761F,0x7627,0x7620,0x7621,0x7622,0x7624,0x7634,/* 0x88-0x8F */
+	0x7630,0x763B,0x7647,0x7648,0x7646,0x765C,0x7658,0x7661,/* 0x90-0x97 */
+	0x7662,0x7668,0x7669,0x766A,0x7667,0x766C,0x7670,0x7672,/* 0x98-0x9F */
+	0x7676,0x7678,0x767C,0x7680,0x7683,0x7688,0x768B,0x768E,/* 0xA0-0xA7 */
+	0x7696,0x7693,0x7699,0x769A,0x76B0,0x76B4,0x76B8,0x76B9,/* 0xA8-0xAF */
+	0x76BA,0x76C2,0x76CD,0x76D6,0x76D2,0x76DE,0x76E1,0x76E5,/* 0xB0-0xB7 */
+	0x76E7,0x76EA,0x862F,0x76FB,0x7708,0x7707,0x7704,0x7729,/* 0xB8-0xBF */
+	0x7724,0x771E,0x7725,0x7726,0x771B,0x7737,0x7738,0x7747,/* 0xC0-0xC7 */
+	0x775A,0x7768,0x776B,0x775B,0x7765,0x777F,0x777E,0x7779,/* 0xC8-0xCF */
+	0x778E,0x778B,0x7791,0x77A0,0x779E,0x77B0,0x77B6,0x77B9,/* 0xD0-0xD7 */
+	0x77BF,0x77BC,0x77BD,0x77BB,0x77C7,0x77CD,0x77D7,0x77DA,/* 0xD8-0xDF */
+	0x77DC,0x77E3,0x77EE,0x77FC,0x780C,0x7812,0x7926,0x7820,/* 0xE0-0xE7 */
+	0x792A,0x7845,0x788E,0x7874,0x7886,0x787C,0x789A,0x788C,/* 0xE8-0xEF */
+	0x78A3,0x78B5,0x78AA,0x78AF,0x78D1,0x78C6,0x78CB,0x78D4,/* 0xF0-0xF7 */
+	0x78BE,0x78BC,0x78C5,0x78CA,0x78EC,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E2[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x78E7,0x78DA,0x78FD,0x78F4,0x7907,0x7912,0x7911,0x7919,/* 0x40-0x47 */
+	0x792C,0x792B,0x7940,0x7960,0x7957,0x795F,0x795A,0x7955,/* 0x48-0x4F */
+	0x7953,0x797A,0x797F,0x798A,0x799D,0x79A7,0x9F4B,0x79AA,/* 0x50-0x57 */
+	0x79AE,0x79B3,0x79B9,0x79BA,0x79C9,0x79D5,0x79E7,0x79EC,/* 0x58-0x5F */
+	0x79E1,0x79E3,0x7A08,0x7A0D,0x7A18,0x7A19,0x7A20,0x7A1F,/* 0x60-0x67 */
+	0x7980,0x7A31,0x7A3B,0x7A3E,0x7A37,0x7A43,0x7A57,0x7A49,/* 0x68-0x6F */
+	0x7A61,0x7A62,0x7A69,0x9F9D,0x7A70,0x7A79,0x7A7D,0x7A88,/* 0x70-0x77 */
+	0x7A97,0x7A95,0x7A98,0x7A96,0x7AA9,0x7AC8,0x7AB0,0x0000,/* 0x78-0x7F */
+	
+	0x7AB6,0x7AC5,0x7AC4,0x7ABF,0x9083,0x7AC7,0x7ACA,0x7ACD,/* 0x80-0x87 */
+	0x7ACF,0x7AD5,0x7AD3,0x7AD9,0x7ADA,0x7ADD,0x7AE1,0x7AE2,/* 0x88-0x8F */
+	0x7AE6,0x7AED,0x7AF0,0x7B02,0x7B0F,0x7B0A,0x7B06,0x7B33,/* 0x90-0x97 */
+	0x7B18,0x7B19,0x7B1E,0x7B35,0x7B28,0x7B36,0x7B50,0x7B7A,/* 0x98-0x9F */
+	0x7B04,0x7B4D,0x7B0B,0x7B4C,0x7B45,0x7B75,0x7B65,0x7B74,/* 0xA0-0xA7 */
+	0x7B67,0x7B70,0x7B71,0x7B6C,0x7B6E,0x7B9D,0x7B98,0x7B9F,/* 0xA8-0xAF */
+	0x7B8D,0x7B9C,0x7B9A,0x7B8B,0x7B92,0x7B8F,0x7B5D,0x7B99,/* 0xB0-0xB7 */
+	0x7BCB,0x7BC1,0x7BCC,0x7BCF,0x7BB4,0x7BC6,0x7BDD,0x7BE9,/* 0xB8-0xBF */
+	0x7C11,0x7C14,0x7BE6,0x7BE5,0x7C60,0x7C00,0x7C07,0x7C13,/* 0xC0-0xC7 */
+	0x7BF3,0x7BF7,0x7C17,0x7C0D,0x7BF6,0x7C23,0x7C27,0x7C2A,/* 0xC8-0xCF */
+	0x7C1F,0x7C37,0x7C2B,0x7C3D,0x7C4C,0x7C43,0x7C54,0x7C4F,/* 0xD0-0xD7 */
+	0x7C40,0x7C50,0x7C58,0x7C5F,0x7C64,0x7C56,0x7C65,0x7C6C,/* 0xD8-0xDF */
+	0x7C75,0x7C83,0x7C90,0x7CA4,0x7CAD,0x7CA2,0x7CAB,0x7CA1,/* 0xE0-0xE7 */
+	0x7CA8,0x7CB3,0x7CB2,0x7CB1,0x7CAE,0x7CB9,0x7CBD,0x7CC0,/* 0xE8-0xEF */
+	0x7CC5,0x7CC2,0x7CD8,0x7CD2,0x7CDC,0x7CE2,0x9B3B,0x7CEF,/* 0xF0-0xF7 */
+	0x7CF2,0x7CF4,0x7CF6,0x7CFA,0x7D06,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E3[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7D02,0x7D1C,0x7D15,0x7D0A,0x7D45,0x7D4B,0x7D2E,0x7D32,/* 0x40-0x47 */
+	0x7D3F,0x7D35,0x7D46,0x7D73,0x7D56,0x7D4E,0x7D72,0x7D68,/* 0x48-0x4F */
+	0x7D6E,0x7D4F,0x7D63,0x7D93,0x7D89,0x7D5B,0x7D8F,0x7D7D,/* 0x50-0x57 */
+	0x7D9B,0x7DBA,0x7DAE,0x7DA3,0x7DB5,0x7DC7,0x7DBD,0x7DAB,/* 0x58-0x5F */
+	0x7E3D,0x7DA2,0x7DAF,0x7DDC,0x7DB8,0x7D9F,0x7DB0,0x7DD8,/* 0x60-0x67 */
+	0x7DDD,0x7DE4,0x7DDE,0x7DFB,0x7DF2,0x7DE1,0x7E05,0x7E0A,/* 0x68-0x6F */
+	0x7E23,0x7E21,0x7E12,0x7E31,0x7E1F,0x7E09,0x7E0B,0x7E22,/* 0x70-0x77 */
+	0x7E46,0x7E66,0x7E3B,0x7E35,0x7E39,0x7E43,0x7E37,0x0000,/* 0x78-0x7F */
+	
+	0x7E32,0x7E3A,0x7E67,0x7E5D,0x7E56,0x7E5E,0x7E59,0x7E5A,/* 0x80-0x87 */
+	0x7E79,0x7E6A,0x7E69,0x7E7C,0x7E7B,0x7E83,0x7DD5,0x7E7D,/* 0x88-0x8F */
+	0x8FAE,0x7E7F,0x7E88,0x7E89,0x7E8C,0x7E92,0x7E90,0x7E93,/* 0x90-0x97 */
+	0x7E94,0x7E96,0x7E8E,0x7E9B,0x7E9C,0x7F38,0x7F3A,0x7F45,/* 0x98-0x9F */
+	0x7F4C,0x7F4D,0x7F4E,0x7F50,0x7F51,0x7F55,0x7F54,0x7F58,/* 0xA0-0xA7 */
+	0x7F5F,0x7F60,0x7F68,0x7F69,0x7F67,0x7F78,0x7F82,0x7F86,/* 0xA8-0xAF */
+	0x7F83,0x7F88,0x7F87,0x7F8C,0x7F94,0x7F9E,0x7F9D,0x7F9A,/* 0xB0-0xB7 */
+	0x7FA3,0x7FAF,0x7FB2,0x7FB9,0x7FAE,0x7FB6,0x7FB8,0x8B71,/* 0xB8-0xBF */
+	0x7FC5,0x7FC6,0x7FCA,0x7FD5,0x7FD4,0x7FE1,0x7FE6,0x7FE9,/* 0xC0-0xC7 */
+	0x7FF3,0x7FF9,0x98DC,0x8006,0x8004,0x800B,0x8012,0x8018,/* 0xC8-0xCF */
+	0x8019,0x801C,0x8021,0x8028,0x803F,0x803B,0x804A,0x8046,/* 0xD0-0xD7 */
+	0x8052,0x8058,0x805A,0x805F,0x8062,0x8068,0x8073,0x8072,/* 0xD8-0xDF */
+	0x8070,0x8076,0x8079,0x807D,0x807F,0x8084,0x8086,0x8085,/* 0xE0-0xE7 */
+	0x809B,0x8093,0x809A,0x80AD,0x5190,0x80AC,0x80DB,0x80E5,/* 0xE8-0xEF */
+	0x80D9,0x80DD,0x80C4,0x80DA,0x80D6,0x8109,0x80EF,0x80F1,/* 0xF0-0xF7 */
+	0x811B,0x8129,0x8123,0x812F,0x814B,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E4[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x968B,0x8146,0x813E,0x8153,0x8151,0x80FC,0x8171,0x816E,/* 0x40-0x47 */
+	0x8165,0x8166,0x8174,0x8183,0x8188,0x818A,0x8180,0x8182,/* 0x48-0x4F */
+	0x81A0,0x8195,0x81A4,0x81A3,0x815F,0x8193,0x81A9,0x81B0,/* 0x50-0x57 */
+	0x81B5,0x81BE,0x81B8,0x81BD,0x81C0,0x81C2,0x81BA,0x81C9,/* 0x58-0x5F */
+	0x81CD,0x81D1,0x81D9,0x81D8,0x81C8,0x81DA,0x81DF,0x81E0,/* 0x60-0x67 */
+	0x81E7,0x81FA,0x81FB,0x81FE,0x8201,0x8202,0x8205,0x8207,/* 0x68-0x6F */
+	0x820A,0x820D,0x8210,0x8216,0x8229,0x822B,0x8238,0x8233,/* 0x70-0x77 */
+	0x8240,0x8259,0x8258,0x825D,0x825A,0x825F,0x8264,0x0000,/* 0x78-0x7F */
+	
+	0x8262,0x8268,0x826A,0x826B,0x822E,0x8271,0x8277,0x8278,/* 0x80-0x87 */
+	0x827E,0x828D,0x8292,0x82AB,0x829F,0x82BB,0x82AC,0x82E1,/* 0x88-0x8F */
+	0x82E3,0x82DF,0x82D2,0x82F4,0x82F3,0x82FA,0x8393,0x8303,/* 0x90-0x97 */
+	0x82FB,0x82F9,0x82DE,0x8306,0x82DC,0x8309,0x82D9,0x8335,/* 0x98-0x9F */
+	0x8334,0x8316,0x8332,0x8331,0x8340,0x8339,0x8350,0x8345,/* 0xA0-0xA7 */
+	0x832F,0x832B,0x8317,0x8318,0x8385,0x839A,0x83AA,0x839F,/* 0xA8-0xAF */
+	0x83A2,0x8396,0x8323,0x838E,0x8387,0x838A,0x837C,0x83B5,/* 0xB0-0xB7 */
+	0x8373,0x8375,0x83A0,0x8389,0x83A8,0x83F4,0x8413,0x83EB,/* 0xB8-0xBF */
+	0x83CE,0x83FD,0x8403,0x83D8,0x840B,0x83C1,0x83F7,0x8407,/* 0xC0-0xC7 */
+	0x83E0,0x83F2,0x840D,0x8422,0x8420,0x83BD,0x8438,0x8506,/* 0xC8-0xCF */
+	0x83FB,0x846D,0x842A,0x843C,0x855A,0x8484,0x8477,0x846B,/* 0xD0-0xD7 */
+	0x84AD,0x846E,0x8482,0x8469,0x8446,0x842C,0x846F,0x8479,/* 0xD8-0xDF */
+	0x8435,0x84CA,0x8462,0x84B9,0x84BF,0x849F,0x84D9,0x84CD,/* 0xE0-0xE7 */
+	0x84BB,0x84DA,0x84D0,0x84C1,0x84C6,0x84D6,0x84A1,0x8521,/* 0xE8-0xEF */
+	0x84FF,0x84F4,0x8517,0x8518,0x852C,0x851F,0x8515,0x8514,/* 0xF0-0xF7 */
+	0x84FC,0x8540,0x8563,0x8558,0x8548,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E5[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8541,0x8602,0x854B,0x8555,0x8580,0x85A4,0x8588,0x8591,/* 0x40-0x47 */
+	0x858A,0x85A8,0x856D,0x8594,0x859B,0x85EA,0x8587,0x859C,/* 0x48-0x4F */
+	0x8577,0x857E,0x8590,0x85C9,0x85BA,0x85CF,0x85B9,0x85D0,/* 0x50-0x57 */
+	0x85D5,0x85DD,0x85E5,0x85DC,0x85F9,0x860A,0x8613,0x860B,/* 0x58-0x5F */
+	0x85FE,0x85FA,0x8606,0x8622,0x861A,0x8630,0x863F,0x864D,/* 0x60-0x67 */
+	0x4E55,0x8654,0x865F,0x8667,0x8671,0x8693,0x86A3,0x86A9,/* 0x68-0x6F */
+	0x86AA,0x868B,0x868C,0x86B6,0x86AF,0x86C4,0x86C6,0x86B0,/* 0x70-0x77 */
+	0x86C9,0x8823,0x86AB,0x86D4,0x86DE,0x86E9,0x86EC,0x0000,/* 0x78-0x7F */
+	
+	0x86DF,0x86DB,0x86EF,0x8712,0x8706,0x8708,0x8700,0x8703,/* 0x80-0x87 */
+	0x86FB,0x8711,0x8709,0x870D,0x86F9,0x870A,0x8734,0x873F,/* 0x88-0x8F */
+	0x8737,0x873B,0x8725,0x8729,0x871A,0x8760,0x875F,0x8778,/* 0x90-0x97 */
+	0x874C,0x874E,0x8774,0x8757,0x8768,0x876E,0x8759,0x8753,/* 0x98-0x9F */
+	0x8763,0x876A,0x8805,0x87A2,0x879F,0x8782,0x87AF,0x87CB,/* 0xA0-0xA7 */
+	0x87BD,0x87C0,0x87D0,0x96D6,0x87AB,0x87C4,0x87B3,0x87C7,/* 0xA8-0xAF */
+	0x87C6,0x87BB,0x87EF,0x87F2,0x87E0,0x880F,0x880D,0x87FE,/* 0xB0-0xB7 */
+	0x87F6,0x87F7,0x880E,0x87D2,0x8811,0x8816,0x8815,0x8822,/* 0xB8-0xBF */
+	0x8821,0x8831,0x8836,0x8839,0x8827,0x883B,0x8844,0x8842,/* 0xC0-0xC7 */
+	0x8852,0x8859,0x885E,0x8862,0x886B,0x8881,0x887E,0x889E,/* 0xC8-0xCF */
+	0x8875,0x887D,0x88B5,0x8872,0x8882,0x8897,0x8892,0x88AE,/* 0xD0-0xD7 */
+	0x8899,0x88A2,0x888D,0x88A4,0x88B0,0x88BF,0x88B1,0x88C3,/* 0xD8-0xDF */
+	0x88C4,0x88D4,0x88D8,0x88D9,0x88DD,0x88F9,0x8902,0x88FC,/* 0xE0-0xE7 */
+	0x88F4,0x88E8,0x88F2,0x8904,0x890C,0x890A,0x8913,0x8943,/* 0xE8-0xEF */
+	0x891E,0x8925,0x892A,0x892B,0x8941,0x8944,0x893B,0x8936,/* 0xF0-0xF7 */
+	0x8938,0x894C,0x891D,0x8960,0x895E,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E6[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8966,0x8964,0x896D,0x896A,0x896F,0x8974,0x8977,0x897E,/* 0x40-0x47 */
+	0x8983,0x8988,0x898A,0x8993,0x8998,0x89A1,0x89A9,0x89A6,/* 0x48-0x4F */
+	0x89AC,0x89AF,0x89B2,0x89BA,0x89BD,0x89BF,0x89C0,0x89DA,/* 0x50-0x57 */
+	0x89DC,0x89DD,0x89E7,0x89F4,0x89F8,0x8A03,0x8A16,0x8A10,/* 0x58-0x5F */
+	0x8A0C,0x8A1B,0x8A1D,0x8A25,0x8A36,0x8A41,0x8A5B,0x8A52,/* 0x60-0x67 */
+	0x8A46,0x8A48,0x8A7C,0x8A6D,0x8A6C,0x8A62,0x8A85,0x8A82,/* 0x68-0x6F */
+	0x8A84,0x8AA8,0x8AA1,0x8A91,0x8AA5,0x8AA6,0x8A9A,0x8AA3,/* 0x70-0x77 */
+	0x8AC4,0x8ACD,0x8AC2,0x8ADA,0x8AEB,0x8AF3,0x8AE7,0x0000,/* 0x78-0x7F */
+	
+	0x8AE4,0x8AF1,0x8B14,0x8AE0,0x8AE2,0x8AF7,0x8ADE,0x8ADB,/* 0x80-0x87 */
+	0x8B0C,0x8B07,0x8B1A,0x8AE1,0x8B16,0x8B10,0x8B17,0x8B20,/* 0x88-0x8F */
+	0x8B33,0x97AB,0x8B26,0x8B2B,0x8B3E,0x8B28,0x8B41,0x8B4C,/* 0x90-0x97 */
+	0x8B4F,0x8B4E,0x8B49,0x8B56,0x8B5B,0x8B5A,0x8B6B,0x8B5F,/* 0x98-0x9F */
+	0x8B6C,0x8B6F,0x8B74,0x8B7D,0x8B80,0x8B8C,0x8B8E,0x8B92,/* 0xA0-0xA7 */
+	0x8B93,0x8B96,0x8B99,0x8B9A,0x8C3A,0x8C41,0x8C3F,0x8C48,/* 0xA8-0xAF */
+	0x8C4C,0x8C4E,0x8C50,0x8C55,0x8C62,0x8C6C,0x8C78,0x8C7A,/* 0xB0-0xB7 */
+	0x8C82,0x8C89,0x8C85,0x8C8A,0x8C8D,0x8C8E,0x8C94,0x8C7C,/* 0xB8-0xBF */
+	0x8C98,0x621D,0x8CAD,0x8CAA,0x8CBD,0x8CB2,0x8CB3,0x8CAE,/* 0xC0-0xC7 */
+	0x8CB6,0x8CC8,0x8CC1,0x8CE4,0x8CE3,0x8CDA,0x8CFD,0x8CFA,/* 0xC8-0xCF */
+	0x8CFB,0x8D04,0x8D05,0x8D0A,0x8D07,0x8D0F,0x8D0D,0x8D10,/* 0xD0-0xD7 */
+	0x9F4E,0x8D13,0x8CCD,0x8D14,0x8D16,0x8D67,0x8D6D,0x8D71,/* 0xD8-0xDF */
+	0x8D73,0x8D81,0x8D99,0x8DC2,0x8DBE,0x8DBA,0x8DCF,0x8DDA,/* 0xE0-0xE7 */
+	0x8DD6,0x8DCC,0x8DDB,0x8DCB,0x8DEA,0x8DEB,0x8DDF,0x8DE3,/* 0xE8-0xEF */
+	0x8DFC,0x8E08,0x8E09,0x8DFF,0x8E1D,0x8E1E,0x8E10,0x8E1F,/* 0xF0-0xF7 */
+	0x8E42,0x8E35,0x8E30,0x8E34,0x8E4A,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E7[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8E47,0x8E49,0x8E4C,0x8E50,0x8E48,0x8E59,0x8E64,0x8E60,/* 0x40-0x47 */
+	0x8E2A,0x8E63,0x8E55,0x8E76,0x8E72,0x8E7C,0x8E81,0x8E87,/* 0x48-0x4F */
+	0x8E85,0x8E84,0x8E8B,0x8E8A,0x8E93,0x8E91,0x8E94,0x8E99,/* 0x50-0x57 */
+	0x8EAA,0x8EA1,0x8EAC,0x8EB0,0x8EC6,0x8EB1,0x8EBE,0x8EC5,/* 0x58-0x5F */
+	0x8EC8,0x8ECB,0x8EDB,0x8EE3,0x8EFC,0x8EFB,0x8EEB,0x8EFE,/* 0x60-0x67 */
+	0x8F0A,0x8F05,0x8F15,0x8F12,0x8F19,0x8F13,0x8F1C,0x8F1F,/* 0x68-0x6F */
+	0x8F1B,0x8F0C,0x8F26,0x8F33,0x8F3B,0x8F39,0x8F45,0x8F42,/* 0x70-0x77 */
+	0x8F3E,0x8F4C,0x8F49,0x8F46,0x8F4E,0x8F57,0x8F5C,0x0000,/* 0x78-0x7F */
+	
+	0x8F62,0x8F63,0x8F64,0x8F9C,0x8F9F,0x8FA3,0x8FAD,0x8FAF,/* 0x80-0x87 */
+	0x8FB7,0x8FDA,0x8FE5,0x8FE2,0x8FEA,0x8FEF,0x9087,0x8FF4,/* 0x88-0x8F */
+	0x9005,0x8FF9,0x8FFA,0x9011,0x9015,0x9021,0x900D,0x901E,/* 0x90-0x97 */
+	0x9016,0x900B,0x9027,0x9036,0x9035,0x9039,0x8FF8,0x904F,/* 0x98-0x9F */
+	0x9050,0x9051,0x9052,0x900E,0x9049,0x903E,0x9056,0x9058,/* 0xA0-0xA7 */
+	0x905E,0x9068,0x906F,0x9076,0x96A8,0x9072,0x9082,0x907D,/* 0xA8-0xAF */
+	0x9081,0x9080,0x908A,0x9089,0x908F,0x90A8,0x90AF,0x90B1,/* 0xB0-0xB7 */
+	0x90B5,0x90E2,0x90E4,0x6248,0x90DB,0x9102,0x9112,0x9119,/* 0xB8-0xBF */
+	0x9132,0x9130,0x914A,0x9156,0x9158,0x9163,0x9165,0x9169,/* 0xC0-0xC7 */
+	0x9173,0x9172,0x918B,0x9189,0x9182,0x91A2,0x91AB,0x91AF,/* 0xC8-0xCF */
+	0x91AA,0x91B5,0x91B4,0x91BA,0x91C0,0x91C1,0x91C9,0x91CB,/* 0xD0-0xD7 */
+	0x91D0,0x91D6,0x91DF,0x91E1,0x91DB,0x91FC,0x91F5,0x91F6,/* 0xD8-0xDF */
+	0x921E,0x91FF,0x9214,0x922C,0x9215,0x9211,0x925E,0x9257,/* 0xE0-0xE7 */
+	0x9245,0x9249,0x9264,0x9248,0x9295,0x923F,0x924B,0x9250,/* 0xE8-0xEF */
+	0x929C,0x9296,0x9293,0x929B,0x925A,0x92CF,0x92B9,0x92B7,/* 0xF0-0xF7 */
+	0x92E9,0x930F,0x92FA,0x9344,0x932E,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E8[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x9319,0x9322,0x931A,0x9323,0x933A,0x9335,0x933B,0x935C,/* 0x40-0x47 */
+	0x9360,0x937C,0x936E,0x9356,0x93B0,0x93AC,0x93AD,0x9394,/* 0x48-0x4F */
+	0x93B9,0x93D6,0x93D7,0x93E8,0x93E5,0x93D8,0x93C3,0x93DD,/* 0x50-0x57 */
+	0x93D0,0x93C8,0x93E4,0x941A,0x9414,0x9413,0x9403,0x9407,/* 0x58-0x5F */
+	0x9410,0x9436,0x942B,0x9435,0x9421,0x943A,0x9441,0x9452,/* 0x60-0x67 */
+	0x9444,0x945B,0x9460,0x9462,0x945E,0x946A,0x9229,0x9470,/* 0x68-0x6F */
+	0x9475,0x9477,0x947D,0x945A,0x947C,0x947E,0x9481,0x947F,/* 0x70-0x77 */
+	0x9582,0x9587,0x958A,0x9594,0x9596,0x9598,0x9599,0x0000,/* 0x78-0x7F */
+	
+	0x95A0,0x95A8,0x95A7,0x95AD,0x95BC,0x95BB,0x95B9,0x95BE,/* 0x80-0x87 */
+	0x95CA,0x6FF6,0x95C3,0x95CD,0x95CC,0x95D5,0x95D4,0x95D6,/* 0x88-0x8F */
+	0x95DC,0x95E1,0x95E5,0x95E2,0x9621,0x9628,0x962E,0x962F,/* 0x90-0x97 */
+	0x9642,0x964C,0x964F,0x964B,0x9677,0x965C,0x965E,0x965D,/* 0x98-0x9F */
+	0x965F,0x9666,0x9672,0x966C,0x968D,0x9698,0x9695,0x9697,/* 0xA0-0xA7 */
+	0x96AA,0x96A7,0x96B1,0x96B2,0x96B0,0x96B4,0x96B6,0x96B8,/* 0xA8-0xAF */
+	0x96B9,0x96CE,0x96CB,0x96C9,0x96CD,0x894D,0x96DC,0x970D,/* 0xB0-0xB7 */
+	0x96D5,0x96F9,0x9704,0x9706,0x9708,0x9713,0x970E,0x9711,/* 0xB8-0xBF */
+	0x970F,0x9716,0x9719,0x9724,0x972A,0x9730,0x9739,0x973D,/* 0xC0-0xC7 */
+	0x973E,0x9744,0x9746,0x9748,0x9742,0x9749,0x975C,0x9760,/* 0xC8-0xCF */
+	0x9764,0x9766,0x9768,0x52D2,0x976B,0x9771,0x9779,0x9785,/* 0xD0-0xD7 */
+	0x977C,0x9781,0x977A,0x9786,0x978B,0x978F,0x9790,0x979C,/* 0xD8-0xDF */
+	0x97A8,0x97A6,0x97A3,0x97B3,0x97B4,0x97C3,0x97C6,0x97C8,/* 0xE0-0xE7 */
+	0x97CB,0x97DC,0x97ED,0x9F4F,0x97F2,0x7ADF,0x97F6,0x97F5,/* 0xE8-0xEF */
+	0x980F,0x980C,0x9838,0x9824,0x9821,0x9837,0x983D,0x9846,/* 0xF0-0xF7 */
+	0x984F,0x984B,0x986B,0x986F,0x9870,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E9[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x9871,0x9874,0x9873,0x98AA,0x98AF,0x98B1,0x98B6,0x98C4,/* 0x40-0x47 */
+	0x98C3,0x98C6,0x98E9,0x98EB,0x9903,0x9909,0x9912,0x9914,/* 0x48-0x4F */
+	0x9918,0x9921,0x991D,0x991E,0x9924,0x9920,0x992C,0x992E,/* 0x50-0x57 */
+	0x993D,0x993E,0x9942,0x9949,0x9945,0x9950,0x994B,0x9951,/* 0x58-0x5F */
+	0x9952,0x994C,0x9955,0x9997,0x9998,0x99A5,0x99AD,0x99AE,/* 0x60-0x67 */
+	0x99BC,0x99DF,0x99DB,0x99DD,0x99D8,0x99D1,0x99ED,0x99EE,/* 0x68-0x6F */
+	0x99F1,0x99F2,0x99FB,0x99F8,0x9A01,0x9A0F,0x9A05,0x99E2,/* 0x70-0x77 */
+	0x9A19,0x9A2B,0x9A37,0x9A45,0x9A42,0x9A40,0x9A43,0x0000,/* 0x78-0x7F */
+	
+	0x9A3E,0x9A55,0x9A4D,0x9A5B,0x9A57,0x9A5F,0x9A62,0x9A65,/* 0x80-0x87 */
+	0x9A64,0x9A69,0x9A6B,0x9A6A,0x9AAD,0x9AB0,0x9ABC,0x9AC0,/* 0x88-0x8F */
+	0x9ACF,0x9AD1,0x9AD3,0x9AD4,0x9ADE,0x9ADF,0x9AE2,0x9AE3,/* 0x90-0x97 */
+	0x9AE6,0x9AEF,0x9AEB,0x9AEE,0x9AF4,0x9AF1,0x9AF7,0x9AFB,/* 0x98-0x9F */
+	0x9B06,0x9B18,0x9B1A,0x9B1F,0x9B22,0x9B23,0x9B25,0x9B27,/* 0xA0-0xA7 */
+	0x9B28,0x9B29,0x9B2A,0x9B2E,0x9B2F,0x9B32,0x9B44,0x9B43,/* 0xA8-0xAF */
+	0x9B4F,0x9B4D,0x9B4E,0x9B51,0x9B58,0x9B74,0x9B93,0x9B83,/* 0xB0-0xB7 */
+	0x9B91,0x9B96,0x9B97,0x9B9F,0x9BA0,0x9BA8,0x9BB4,0x9BC0,/* 0xB8-0xBF */
+	0x9BCA,0x9BB9,0x9BC6,0x9BCF,0x9BD1,0x9BD2,0x9BE3,0x9BE2,/* 0xC0-0xC7 */
+	0x9BE4,0x9BD4,0x9BE1,0x9C3A,0x9BF2,0x9BF1,0x9BF0,0x9C15,/* 0xC8-0xCF */
+	0x9C14,0x9C09,0x9C13,0x9C0C,0x9C06,0x9C08,0x9C12,0x9C0A,/* 0xD0-0xD7 */
+	0x9C04,0x9C2E,0x9C1B,0x9C25,0x9C24,0x9C21,0x9C30,0x9C47,/* 0xD8-0xDF */
+	0x9C32,0x9C46,0x9C3E,0x9C5A,0x9C60,0x9C67,0x9C76,0x9C78,/* 0xE0-0xE7 */
+	0x9CE7,0x9CEC,0x9CF0,0x9D09,0x9D08,0x9CEB,0x9D03,0x9D06,/* 0xE8-0xEF */
+	0x9D2A,0x9D26,0x9DAF,0x9D23,0x9D1F,0x9D44,0x9D15,0x9D12,/* 0xF0-0xF7 */
+	0x9D41,0x9D3F,0x9D3E,0x9D46,0x9D48,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_EA[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x9D5D,0x9D5E,0x9D64,0x9D51,0x9D50,0x9D59,0x9D72,0x9D89,/* 0x40-0x47 */
+	0x9D87,0x9DAB,0x9D6F,0x9D7A,0x9D9A,0x9DA4,0x9DA9,0x9DB2,/* 0x48-0x4F */
+	0x9DC4,0x9DC1,0x9DBB,0x9DB8,0x9DBA,0x9DC6,0x9DCF,0x9DC2,/* 0x50-0x57 */
+	0x9DD9,0x9DD3,0x9DF8,0x9DE6,0x9DED,0x9DEF,0x9DFD,0x9E1A,/* 0x58-0x5F */
+	0x9E1B,0x9E1E,0x9E75,0x9E79,0x9E7D,0x9E81,0x9E88,0x9E8B,/* 0x60-0x67 */
+	0x9E8C,0x9E92,0x9E95,0x9E91,0x9E9D,0x9EA5,0x9EA9,0x9EB8,/* 0x68-0x6F */
+	0x9EAA,0x9EAD,0x9761,0x9ECC,0x9ECE,0x9ECF,0x9ED0,0x9ED4,/* 0x70-0x77 */
+	0x9EDC,0x9EDE,0x9EDD,0x9EE0,0x9EE5,0x9EE8,0x9EEF,0x0000,/* 0x78-0x7F */
+	
+	0x9EF4,0x9EF6,0x9EF7,0x9EF9,0x9EFB,0x9EFC,0x9EFD,0x9F07,/* 0x80-0x87 */
+	0x9F08,0x76B7,0x9F15,0x9F21,0x9F2C,0x9F3E,0x9F4A,0x9F52,/* 0x88-0x8F */
+	0x9F54,0x9F63,0x9F5F,0x9F60,0x9F61,0x9F66,0x9F67,0x9F6C,/* 0x90-0x97 */
+	0x9F6A,0x9F77,0x9F72,0x9F76,0x9F95,0x9F9C,0x9FA0,0x582F,/* 0x98-0x9F */
+	0x69C7,0x9059,0x7464,0x51DC,0x7199,0x0000,0x0000,0x0000,/* 0xA0-0xA7 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xA8-0xAF */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xB0-0xB7 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xB8-0xBF */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xC0-0xC7 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xC8-0xCF */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xD0-0xD7 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xD8-0xDF */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xE0-0xE7 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xE8-0xEF */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xF0-0xF7 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_ED[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7E8A,0x891C,0x9348,0x9288,0x84DC,0x4FC9,0x70BB,0x6631,/* 0x40-0x47 */
+	0x68C8,0x92F9,0x66FB,0x5F45,0x4E28,0x4EE1,0x4EFC,0x4F00,/* 0x48-0x4F */
+	0x4F03,0x4F39,0x4F56,0x4F92,0x4F8A,0x4F9A,0x4F94,0x4FCD,/* 0x50-0x57 */
+	0x5040,0x5022,0x4FFF,0x501E,0x5046,0x5070,0x5042,0x5094,/* 0x58-0x5F */
+	0x50F4,0x50D8,0x514A,0x5164,0x519D,0x51BE,0x51EC,0x5215,/* 0x60-0x67 */
+	0x529C,0x52A6,0x52C0,0x52DB,0x5300,0x5307,0x5324,0x5372,/* 0x68-0x6F */
+	0x5393,0x53B2,0x53DD,0xFA0E,0x549C,0x548A,0x54A9,0x54FF,/* 0x70-0x77 */
+	0x5586,0x5759,0x5765,0x57AC,0x57C8,0x57C7,0xFA0F,0x0000,/* 0x78-0x7F */
+	
+	0xFA10,0x589E,0x58B2,0x590B,0x5953,0x595B,0x595D,0x5963,/* 0x80-0x87 */
+	0x59A4,0x59BA,0x5B56,0x5BC0,0x752F,0x5BD8,0x5BEC,0x5C1E,/* 0x88-0x8F */
+	0x5CA6,0x5CBA,0x5CF5,0x5D27,0x5D53,0xFA11,0x5D42,0x5D6D,/* 0x90-0x97 */
+	0x5DB8,0x5DB9,0x5DD0,0x5F21,0x5F34,0x5F67,0x5FB7,0x5FDE,/* 0x98-0x9F */
+	0x605D,0x6085,0x608A,0x60DE,0x60D5,0x6120,0x60F2,0x6111,/* 0xA0-0xA7 */
+	0x6137,0x6130,0x6198,0x6213,0x62A6,0x63F5,0x6460,0x649D,/* 0xA8-0xAF */
+	0x64CE,0x654E,0x6600,0x6615,0x663B,0x6609,0x662E,0x661E,/* 0xB0-0xB7 */
+	0x6624,0x6665,0x6657,0x6659,0xFA12,0x6673,0x6699,0x66A0,/* 0xB8-0xBF */
+	0x66B2,0x66BF,0x66FA,0x670E,0xF929,0x6766,0x67BB,0x6852,/* 0xC0-0xC7 */
+	0x67C0,0x6801,0x6844,0x68CF,0xFA13,0x6968,0xFA14,0x6998,/* 0xC8-0xCF */
+	0x69E2,0x6A30,0x6A6B,0x6A46,0x6A73,0x6A7E,0x6AE2,0x6AE4,/* 0xD0-0xD7 */
+	0x6BD6,0x6C3F,0x6C5C,0x6C86,0x6C6F,0x6CDA,0x6D04,0x6D87,/* 0xD8-0xDF */
+	0x6D6F,0x6D96,0x6DAC,0x6DCF,0x6DF8,0x6DF2,0x6DFC,0x6E39,/* 0xE0-0xE7 */
+	0x6E5C,0x6E27,0x6E3C,0x6EBF,0x6F88,0x6FB5,0x6FF5,0x7005,/* 0xE8-0xEF */
+	0x7007,0x7028,0x7085,0x70AB,0x710F,0x7104,0x715C,0x7146,/* 0xF0-0xF7 */
+	0x7147,0xFA15,0x71C1,0x71FE,0x72B1,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_EE[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x72BE,0x7324,0xFA16,0x7377,0x73BD,0x73C9,0x73D6,0x73E3,/* 0x40-0x47 */
+	0x73D2,0x7407,0x73F5,0x7426,0x742A,0x7429,0x742E,0x7462,/* 0x48-0x4F */
+	0x7489,0x749F,0x7501,0x756F,0x7682,0x769C,0x769E,0x769B,/* 0x50-0x57 */
+	0x76A6,0xFA17,0x7746,0x52AF,0x7821,0x784E,0x7864,0x787A,/* 0x58-0x5F */
+	0x7930,0xFA18,0xFA19,0xFA1A,0x7994,0xFA1B,0x799B,0x7AD1,/* 0x60-0x67 */
+	0x7AE7,0xFA1C,0x7AEB,0x7B9E,0xFA1D,0x7D48,0x7D5C,0x7DB7,/* 0x68-0x6F */
+	0x7DA0,0x7DD6,0x7E52,0x7F47,0x7FA1,0xFA1E,0x8301,0x8362,/* 0x70-0x77 */
+	0x837F,0x83C7,0x83F6,0x8448,0x84B4,0x8553,0x8559,0x0000,/* 0x78-0x7F */
+	
+	0x856B,0xFA1F,0x85B0,0xFA20,0xFA21,0x8807,0x88F5,0x8A12,/* 0x80-0x87 */
+	0x8A37,0x8A79,0x8AA7,0x8ABE,0x8ADF,0xFA22,0x8AF6,0x8B53,/* 0x88-0x8F */
+	0x8B7F,0x8CF0,0x8CF4,0x8D12,0x8D76,0xFA23,0x8ECF,0xFA24,/* 0x90-0x97 */
+	0xFA25,0x9067,0x90DE,0xFA26,0x9115,0x9127,0x91DA,0x91D7,/* 0x98-0x9F */
+	0x91DE,0x91ED,0x91EE,0x91E4,0x91E5,0x9206,0x9210,0x920A,/* 0xA0-0xA7 */
+	0x923A,0x9240,0x923C,0x924E,0x9259,0x9251,0x9239,0x9267,/* 0xA8-0xAF */
+	0x92A7,0x9277,0x9278,0x92E7,0x92D7,0x92D9,0x92D0,0xFA27,/* 0xB0-0xB7 */
+	0x92D5,0x92E0,0x92D3,0x9325,0x9321,0x92FB,0xFA28,0x931E,/* 0xB8-0xBF */
+	0x92FF,0x931D,0x9302,0x9370,0x9357,0x93A4,0x93C6,0x93DE,/* 0xC0-0xC7 */
+	0x93F8,0x9431,0x9445,0x9448,0x9592,0xF9DC,0xFA29,0x969D,/* 0xC8-0xCF */
+	0x96AF,0x9733,0x973B,0x9743,0x974D,0x974F,0x9751,0x9755,/* 0xD0-0xD7 */
+	0x9857,0x9865,0xFA2A,0xFA2B,0x9927,0xFA2C,0x999E,0x9A4E,/* 0xD8-0xDF */
+	0x9AD9,0x9ADC,0x9B75,0x9B72,0x9B8F,0x9BB1,0x9BBB,0x9C00,/* 0xE0-0xE7 */
+	0x9D70,0x9D6B,0xFA2D,0x9E19,0x9ED1,0x0000,0x0000,0x2170,/* 0xE8-0xEF */
+	0x2171,0x2172,0x2173,0x2174,0x2175,0x2176,0x2177,0x2178,/* 0xF0-0xF7 */
+	0x2179,0xFFE2,0xFFE4,0xFF07,0xFF02,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_FA[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x2170,0x2171,0x2172,0x2173,0x2174,0x2175,0x2176,0x2177,/* 0x40-0x47 */
+	0x2178,0x2179,0x2160,0x2161,0x2162,0x2163,0x2164,0x2165,/* 0x48-0x4F */
+	0x2166,0x2167,0x2168,0x2169,0x0000,0xFFE4,0xFF07,0xFF02,/* 0x50-0x57 */
+	0x3231,0x2116,0x2121,0x2235,0x7E8A,0x891C,0x9348,0x9288,/* 0x58-0x5F */
+	0x84DC,0x4FC9,0x70BB,0x6631,0x68C8,0x92F9,0x66FB,0x5F45,/* 0x60-0x67 */
+	0x4E28,0x4EE1,0x4EFC,0x4F00,0x4F03,0x4F39,0x4F56,0x4F92,/* 0x68-0x6F */
+	0x4F8A,0x4F9A,0x4F94,0x4FCD,0x5040,0x5022,0x4FFF,0x501E,/* 0x70-0x77 */
+	0x5046,0x5070,0x5042,0x5094,0x50F4,0x50D8,0x514A,0x0000,/* 0x78-0x7F */
+	
+	0x5164,0x519D,0x51BE,0x51EC,0x5215,0x529C,0x52A6,0x52C0,/* 0x80-0x87 */
+	0x52DB,0x5300,0x5307,0x5324,0x5372,0x5393,0x53B2,0x53DD,/* 0x88-0x8F */
+	0xFA0E,0x549C,0x548A,0x54A9,0x54FF,0x5586,0x5759,0x5765,/* 0x90-0x97 */
+	0x57AC,0x57C8,0x57C7,0xFA0F,0xFA10,0x589E,0x58B2,0x590B,/* 0x98-0x9F */
+	0x5953,0x595B,0x595D,0x5963,0x59A4,0x59BA,0x5B56,0x5BC0,/* 0xA0-0xA7 */
+	0x752F,0x5BD8,0x5BEC,0x5C1E,0x5CA6,0x5CBA,0x5CF5,0x5D27,/* 0xA8-0xAF */
+	0x5D53,0xFA11,0x5D42,0x5D6D,0x5DB8,0x5DB9,0x5DD0,0x5F21,/* 0xB0-0xB7 */
+	0x5F34,0x5F67,0x5FB7,0x5FDE,0x605D,0x6085,0x608A,0x60DE,/* 0xB8-0xBF */
+	0x60D5,0x6120,0x60F2,0x6111,0x6137,0x6130,0x6198,0x6213,/* 0xC0-0xC7 */
+	0x62A6,0x63F5,0x6460,0x649D,0x64CE,0x654E,0x6600,0x6615,/* 0xC8-0xCF */
+	0x663B,0x6609,0x662E,0x661E,0x6624,0x6665,0x6657,0x6659,/* 0xD0-0xD7 */
+	0xFA12,0x6673,0x6699,0x66A0,0x66B2,0x66BF,0x66FA,0x670E,/* 0xD8-0xDF */
+	0xF929,0x6766,0x67BB,0x6852,0x67C0,0x6801,0x6844,0x68CF,/* 0xE0-0xE7 */
+	0xFA13,0x6968,0xFA14,0x6998,0x69E2,0x6A30,0x6A6B,0x6A46,/* 0xE8-0xEF */
+	0x6A73,0x6A7E,0x6AE2,0x6AE4,0x6BD6,0x6C3F,0x6C5C,0x6C86,/* 0xF0-0xF7 */
+	0x6C6F,0x6CDA,0x6D04,0x6D87,0x6D6F,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_FB[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6D96,0x6DAC,0x6DCF,0x6DF8,0x6DF2,0x6DFC,0x6E39,0x6E5C,/* 0x40-0x47 */
+	0x6E27,0x6E3C,0x6EBF,0x6F88,0x6FB5,0x6FF5,0x7005,0x7007,/* 0x48-0x4F */
+	0x7028,0x7085,0x70AB,0x710F,0x7104,0x715C,0x7146,0x7147,/* 0x50-0x57 */
+	0xFA15,0x71C1,0x71FE,0x72B1,0x72BE,0x7324,0xFA16,0x7377,/* 0x58-0x5F */
+	0x73BD,0x73C9,0x73D6,0x73E3,0x73D2,0x7407,0x73F5,0x7426,/* 0x60-0x67 */
+	0x742A,0x7429,0x742E,0x7462,0x7489,0x749F,0x7501,0x756F,/* 0x68-0x6F */
+	0x7682,0x769C,0x769E,0x769B,0x76A6,0xFA17,0x7746,0x52AF,/* 0x70-0x77 */
+	0x7821,0x784E,0x7864,0x787A,0x7930,0xFA18,0xFA19,0x0000,/* 0x78-0x7F */
+	
+	0xFA1A,0x7994,0xFA1B,0x799B,0x7AD1,0x7AE7,0xFA1C,0x7AEB,/* 0x80-0x87 */
+	0x7B9E,0xFA1D,0x7D48,0x7D5C,0x7DB7,0x7DA0,0x7DD6,0x7E52,/* 0x88-0x8F */
+	0x7F47,0x7FA1,0xFA1E,0x8301,0x8362,0x837F,0x83C7,0x83F6,/* 0x90-0x97 */
+	0x8448,0x84B4,0x8553,0x8559,0x856B,0xFA1F,0x85B0,0xFA20,/* 0x98-0x9F */
+	0xFA21,0x8807,0x88F5,0x8A12,0x8A37,0x8A79,0x8AA7,0x8ABE,/* 0xA0-0xA7 */
+	0x8ADF,0xFA22,0x8AF6,0x8B53,0x8B7F,0x8CF0,0x8CF4,0x8D12,/* 0xA8-0xAF */
+	0x8D76,0xFA23,0x8ECF,0xFA24,0xFA25,0x9067,0x90DE,0xFA26,/* 0xB0-0xB7 */
+	0x9115,0x9127,0x91DA,0x91D7,0x91DE,0x91ED,0x91EE,0x91E4,/* 0xB8-0xBF */
+	0x91E5,0x9206,0x9210,0x920A,0x923A,0x9240,0x923C,0x924E,/* 0xC0-0xC7 */
+	0x9259,0x9251,0x9239,0x9267,0x92A7,0x9277,0x9278,0x92E7,/* 0xC8-0xCF */
+	0x92D7,0x92D9,0x92D0,0xFA27,0x92D5,0x92E0,0x92D3,0x9325,/* 0xD0-0xD7 */
+	0x9321,0x92FB,0xFA28,0x931E,0x92FF,0x931D,0x9302,0x9370,/* 0xD8-0xDF */
+	0x9357,0x93A4,0x93C6,0x93DE,0x93F8,0x9431,0x9445,0x9448,/* 0xE0-0xE7 */
+	0x9592,0xF9DC,0xFA29,0x969D,0x96AF,0x9733,0x973B,0x9743,/* 0xE8-0xEF */
+	0x974D,0x974F,0x9751,0x9755,0x9857,0x9865,0xFA2A,0xFA2B,/* 0xF0-0xF7 */
+	0x9927,0xFA2C,0x999E,0x9A4E,0x9AD9,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_FC[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x9ADC,0x9B75,0x9B72,0x9B8F,0x9BB1,0x9BBB,0x9C00,0x9D70,/* 0x40-0x47 */
+	0x9D6B,0xFA2D,0x9E19,0x9ED1,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+};
+
+static wchar_t *page_charset2uni[256] = {
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   c2u_81, c2u_82, c2u_83, c2u_84, NULL,   NULL,   c2u_87, 
+	c2u_88, c2u_89, c2u_8A, c2u_8B, c2u_8C, c2u_8D, c2u_8E, c2u_8F, 
+	c2u_90, c2u_91, c2u_92, c2u_93, c2u_94, c2u_95, c2u_96, c2u_97, 
+	c2u_98, c2u_99, c2u_9A, c2u_9B, c2u_9C, c2u_9D, c2u_9E, c2u_9F, 
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	c2u_E0, c2u_E1, c2u_E2, c2u_E3, c2u_E4, c2u_E5, c2u_E6, c2u_E7, 
+	c2u_E8, c2u_E9, c2u_EA, NULL,   NULL,   c2u_ED, c2u_EE, NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   c2u_FA, c2u_FB, c2u_FC, NULL,   NULL,   NULL,   
+};
+
+static unsigned char u2c_03[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x83, 0x9F, 0x83, 0xA0, 0x83, 0xA1, /* 0x90-0x93 */
+	0x83, 0xA2, 0x83, 0xA3, 0x83, 0xA4, 0x83, 0xA5, /* 0x94-0x97 */
+	0x83, 0xA6, 0x83, 0xA7, 0x83, 0xA8, 0x83, 0xA9, /* 0x98-0x9B */
+	0x83, 0xAA, 0x83, 0xAB, 0x83, 0xAC, 0x83, 0xAD, /* 0x9C-0x9F */
+	0x83, 0xAE, 0x83, 0xAF, 0x00, 0x00, 0x83, 0xB0, /* 0xA0-0xA3 */
+	0x83, 0xB1, 0x83, 0xB2, 0x83, 0xB3, 0x83, 0xB4, /* 0xA4-0xA7 */
+	0x83, 0xB5, 0x83, 0xB6, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x83, 0xBF, 0x83, 0xC0, 0x83, 0xC1, /* 0xB0-0xB3 */
+	0x83, 0xC2, 0x83, 0xC3, 0x83, 0xC4, 0x83, 0xC5, /* 0xB4-0xB7 */
+	0x83, 0xC6, 0x83, 0xC7, 0x83, 0xC8, 0x83, 0xC9, /* 0xB8-0xBB */
+	0x83, 0xCA, 0x83, 0xCB, 0x83, 0xCC, 0x83, 0xCD, /* 0xBC-0xBF */
+	0x83, 0xCE, 0x83, 0xCF, 0x00, 0x00, 0x83, 0xD0, /* 0xC0-0xC3 */
+	0x83, 0xD1, 0x83, 0xD2, 0x83, 0xD3, 0x83, 0xD4, /* 0xC4-0xC7 */
+	0x83, 0xD5, 0x83, 0xD6, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+};
+
+static unsigned char u2c_04[512] = {
+	0x00, 0x00, 0x84, 0x46, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x84, 0x40, 0x84, 0x41, 0x84, 0x42, 0x84, 0x43, /* 0x10-0x13 */
+	0x84, 0x44, 0x84, 0x45, 0x84, 0x47, 0x84, 0x48, /* 0x14-0x17 */
+	0x84, 0x49, 0x84, 0x4A, 0x84, 0x4B, 0x84, 0x4C, /* 0x18-0x1B */
+	0x84, 0x4D, 0x84, 0x4E, 0x84, 0x4F, 0x84, 0x50, /* 0x1C-0x1F */
+	0x84, 0x51, 0x84, 0x52, 0x84, 0x53, 0x84, 0x54, /* 0x20-0x23 */
+	0x84, 0x55, 0x84, 0x56, 0x84, 0x57, 0x84, 0x58, /* 0x24-0x27 */
+	0x84, 0x59, 0x84, 0x5A, 0x84, 0x5B, 0x84, 0x5C, /* 0x28-0x2B */
+	0x84, 0x5D, 0x84, 0x5E, 0x84, 0x5F, 0x84, 0x60, /* 0x2C-0x2F */
+	0x84, 0x70, 0x84, 0x71, 0x84, 0x72, 0x84, 0x73, /* 0x30-0x33 */
+	0x84, 0x74, 0x84, 0x75, 0x84, 0x77, 0x84, 0x78, /* 0x34-0x37 */
+	0x84, 0x79, 0x84, 0x7A, 0x84, 0x7B, 0x84, 0x7C, /* 0x38-0x3B */
+	0x84, 0x7D, 0x84, 0x7E, 0x84, 0x80, 0x84, 0x81, /* 0x3C-0x3F */
+	0x84, 0x82, 0x84, 0x83, 0x84, 0x84, 0x84, 0x85, /* 0x40-0x43 */
+	0x84, 0x86, 0x84, 0x87, 0x84, 0x88, 0x84, 0x89, /* 0x44-0x47 */
+	0x84, 0x8A, 0x84, 0x8B, 0x84, 0x8C, 0x84, 0x8D, /* 0x48-0x4B */
+	0x84, 0x8E, 0x84, 0x8F, 0x84, 0x90, 0x84, 0x91, /* 0x4C-0x4F */
+	0x00, 0x00, 0x84, 0x76, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+};
+
+static unsigned char u2c_20[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x81, 0x5D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x81, 0x5C, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x81, 0x65, 0x81, 0x66, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x81, 0x67, 0x81, 0x68, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x81, 0xF5, 0x81, 0xF6, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x81, 0x64, 0x81, 0x63, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x81, 0xF1, 0x00, 0x00, 0x81, 0x8C, 0x81, 0x8D, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x81, 0xA6, /* 0x38-0x3B */
+};
+
+static unsigned char u2c_21[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x81, 0x8E, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xFA, 0x59, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0xFA, 0x5A, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x81, 0xF0, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0xFA, 0x4A, 0xFA, 0x4B, 0xFA, 0x4C, 0xFA, 0x4D, /* 0x60-0x63 */
+	0xFA, 0x4E, 0xFA, 0x4F, 0xFA, 0x50, 0xFA, 0x51, /* 0x64-0x67 */
+	0xFA, 0x52, 0xFA, 0x53, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0xEE, 0xEF, 0xEE, 0xF0, 0xEE, 0xF1, 0xEE, 0xF2, /* 0x70-0x73 */
+	0xEE, 0xF3, 0xEE, 0xF4, 0xEE, 0xF5, 0xEE, 0xF6, /* 0x74-0x77 */
+	0xEE, 0xF7, 0xEE, 0xF8, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x81, 0xA9, 0x81, 0xAA, 0x81, 0xA8, 0x81, 0xAB, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x81, 0xCB, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x81, 0xCC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+};
+
+static unsigned char u2c_22[512] = {
+	0x81, 0xCD, 0x00, 0x00, 0x81, 0xDD, 0x81, 0xCE, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x81, 0xDE, /* 0x04-0x07 */
+	0x81, 0xB8, 0x00, 0x00, 0x00, 0x00, 0x81, 0xB9, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x87, 0x94, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x87, 0x95, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x81, 0xE5, 0x81, 0x87, 0x87, 0x98, /* 0x1C-0x1F */
+	0x87, 0x97, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x81, 0x61, 0x00, 0x00, 0x81, 0xC8, /* 0x24-0x27 */
+	0x81, 0xC9, 0x87, 0x9B, 0x87, 0x9C, 0x87, 0x92, /* 0x28-0x2B */
+	0x81, 0xE8, 0x00, 0x00, 0x87, 0x93, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x81, 0x88, 0xFA, 0x5B, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x81, 0xE4, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x87, 0x90, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x81, 0x82, 0x87, 0x91, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x81, 0x85, 0x81, 0x86, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x81, 0xE1, 0x81, 0xE2, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x81, 0xBC, 0x81, 0xBD, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x81, 0xBA, 0x81, 0xBB, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x87, 0x96, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x87, 0x99, /* 0xBC-0xBF */
+};
+
+static unsigned char u2c_23[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x81, 0xDC, 0x00, 0x00, /* 0x10-0x13 */
+};
+
+static unsigned char u2c_24[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x87, 0x40, 0x87, 0x41, 0x87, 0x42, 0x87, 0x43, /* 0x60-0x63 */
+	0x87, 0x44, 0x87, 0x45, 0x87, 0x46, 0x87, 0x47, /* 0x64-0x67 */
+	0x87, 0x48, 0x87, 0x49, 0x87, 0x4A, 0x87, 0x4B, /* 0x68-0x6B */
+	0x87, 0x4C, 0x87, 0x4D, 0x87, 0x4E, 0x87, 0x4F, /* 0x6C-0x6F */
+	0x87, 0x50, 0x87, 0x51, 0x87, 0x52, 0x87, 0x53, /* 0x70-0x73 */
+};
+
+static unsigned char u2c_25[512] = {
+	0x84, 0x9F, 0x84, 0xAA, 0x84, 0xA0, 0x84, 0xAB, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x84, 0xA1, 0x00, 0x00, 0x00, 0x00, 0x84, 0xAC, /* 0x0C-0x0F */
+	0x84, 0xA2, 0x00, 0x00, 0x00, 0x00, 0x84, 0xAD, /* 0x10-0x13 */
+	0x84, 0xA4, 0x00, 0x00, 0x00, 0x00, 0x84, 0xAF, /* 0x14-0x17 */
+	0x84, 0xA3, 0x00, 0x00, 0x00, 0x00, 0x84, 0xAE, /* 0x18-0x1B */
+	0x84, 0xA5, 0x84, 0xBA, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x84, 0xB5, 0x00, 0x00, 0x00, 0x00, 0x84, 0xB0, /* 0x20-0x23 */
+	0x84, 0xA7, 0x84, 0xBC, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x84, 0xB7, 0x00, 0x00, 0x00, 0x00, 0x84, 0xB2, /* 0x28-0x2B */
+	0x84, 0xA6, 0x00, 0x00, 0x00, 0x00, 0x84, 0xB6, /* 0x2C-0x2F */
+	0x84, 0xBB, 0x00, 0x00, 0x00, 0x00, 0x84, 0xB1, /* 0x30-0x33 */
+	0x84, 0xA8, 0x00, 0x00, 0x00, 0x00, 0x84, 0xB8, /* 0x34-0x37 */
+	0x84, 0xBD, 0x00, 0x00, 0x00, 0x00, 0x84, 0xB3, /* 0x38-0x3B */
+	0x84, 0xA9, 0x00, 0x00, 0x00, 0x00, 0x84, 0xB9, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x84, 0xBE, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x84, 0xB4, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x81, 0xA1, 0x81, 0xA0, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x81, 0xA3, 0x81, 0xA2, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x81, 0xA5, 0x81, 0xA4, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x81, 0x9F, 0x81, 0x9E, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x81, 0x9B, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x81, 0x9D, 0x81, 0x9C, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x81, 0xFC, /* 0xEC-0xEF */
+};
+
+static unsigned char u2c_26[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x81, 0x9A, 0x81, 0x99, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x81, 0x8A, 0x00, 0x00, 0x81, 0x89, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x81, 0xF4, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x81, 0xF3, 0x00, 0x00, 0x81, 0xF2, /* 0x6C-0x6F */
+};
+
+static unsigned char u2c_30[512] = {
+	0x81, 0x40, 0x81, 0x41, 0x81, 0x42, 0x81, 0x56, /* 0x00-0x03 */
+	0x00, 0x00, 0x81, 0x58, 0x81, 0x59, 0x81, 0x5A, /* 0x04-0x07 */
+	0x81, 0x71, 0x81, 0x72, 0x81, 0x73, 0x81, 0x74, /* 0x08-0x0B */
+	0x81, 0x75, 0x81, 0x76, 0x81, 0x77, 0x81, 0x78, /* 0x0C-0x0F */
+	0x81, 0x79, 0x81, 0x7A, 0x81, 0xA7, 0x81, 0xAC, /* 0x10-0x13 */
+	0x81, 0x6B, 0x81, 0x6C, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x87, 0x80, 0x00, 0x00, 0x87, 0x81, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x82, 0x9F, 0x82, 0xA0, 0x82, 0xA1, /* 0x40-0x43 */
+	0x82, 0xA2, 0x82, 0xA3, 0x82, 0xA4, 0x82, 0xA5, /* 0x44-0x47 */
+	0x82, 0xA6, 0x82, 0xA7, 0x82, 0xA8, 0x82, 0xA9, /* 0x48-0x4B */
+	0x82, 0xAA, 0x82, 0xAB, 0x82, 0xAC, 0x82, 0xAD, /* 0x4C-0x4F */
+	0x82, 0xAE, 0x82, 0xAF, 0x82, 0xB0, 0x82, 0xB1, /* 0x50-0x53 */
+	0x82, 0xB2, 0x82, 0xB3, 0x82, 0xB4, 0x82, 0xB5, /* 0x54-0x57 */
+	0x82, 0xB6, 0x82, 0xB7, 0x82, 0xB8, 0x82, 0xB9, /* 0x58-0x5B */
+	0x82, 0xBA, 0x82, 0xBB, 0x82, 0xBC, 0x82, 0xBD, /* 0x5C-0x5F */
+	0x82, 0xBE, 0x82, 0xBF, 0x82, 0xC0, 0x82, 0xC1, /* 0x60-0x63 */
+	0x82, 0xC2, 0x82, 0xC3, 0x82, 0xC4, 0x82, 0xC5, /* 0x64-0x67 */
+	0x82, 0xC6, 0x82, 0xC7, 0x82, 0xC8, 0x82, 0xC9, /* 0x68-0x6B */
+	0x82, 0xCA, 0x82, 0xCB, 0x82, 0xCC, 0x82, 0xCD, /* 0x6C-0x6F */
+	0x82, 0xCE, 0x82, 0xCF, 0x82, 0xD0, 0x82, 0xD1, /* 0x70-0x73 */
+	0x82, 0xD2, 0x82, 0xD3, 0x82, 0xD4, 0x82, 0xD5, /* 0x74-0x77 */
+	0x82, 0xD6, 0x82, 0xD7, 0x82, 0xD8, 0x82, 0xD9, /* 0x78-0x7B */
+	0x82, 0xDA, 0x82, 0xDB, 0x82, 0xDC, 0x82, 0xDD, /* 0x7C-0x7F */
+	
+	0x82, 0xDE, 0x82, 0xDF, 0x82, 0xE0, 0x82, 0xE1, /* 0x80-0x83 */
+	0x82, 0xE2, 0x82, 0xE3, 0x82, 0xE4, 0x82, 0xE5, /* 0x84-0x87 */
+	0x82, 0xE6, 0x82, 0xE7, 0x82, 0xE8, 0x82, 0xE9, /* 0x88-0x8B */
+	0x82, 0xEA, 0x82, 0xEB, 0x82, 0xEC, 0x82, 0xED, /* 0x8C-0x8F */
+	0x82, 0xEE, 0x82, 0xEF, 0x82, 0xF0, 0x82, 0xF1, /* 0x90-0x93 */
+	0x83, 0x94, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x81, 0x4A, /* 0x98-0x9B */
+	0x81, 0x4B, 0x81, 0x54, 0x81, 0x55, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x83, 0x40, 0x83, 0x41, 0x83, 0x42, /* 0xA0-0xA3 */
+	0x83, 0x43, 0x83, 0x44, 0x83, 0x45, 0x83, 0x46, /* 0xA4-0xA7 */
+	0x83, 0x47, 0x83, 0x48, 0x83, 0x49, 0x83, 0x4A, /* 0xA8-0xAB */
+	0x83, 0x4B, 0x83, 0x4C, 0x83, 0x4D, 0x83, 0x4E, /* 0xAC-0xAF */
+	0x83, 0x4F, 0x83, 0x50, 0x83, 0x51, 0x83, 0x52, /* 0xB0-0xB3 */
+	0x83, 0x53, 0x83, 0x54, 0x83, 0x55, 0x83, 0x56, /* 0xB4-0xB7 */
+	0x83, 0x57, 0x83, 0x58, 0x83, 0x59, 0x83, 0x5A, /* 0xB8-0xBB */
+	0x83, 0x5B, 0x83, 0x5C, 0x83, 0x5D, 0x83, 0x5E, /* 0xBC-0xBF */
+	0x83, 0x5F, 0x83, 0x60, 0x83, 0x61, 0x83, 0x62, /* 0xC0-0xC3 */
+	0x83, 0x63, 0x83, 0x64, 0x83, 0x65, 0x83, 0x66, /* 0xC4-0xC7 */
+	0x83, 0x67, 0x83, 0x68, 0x83, 0x69, 0x83, 0x6A, /* 0xC8-0xCB */
+	0x83, 0x6B, 0x83, 0x6C, 0x83, 0x6D, 0x83, 0x6E, /* 0xCC-0xCF */
+	0x83, 0x6F, 0x83, 0x70, 0x83, 0x71, 0x83, 0x72, /* 0xD0-0xD3 */
+	0x83, 0x73, 0x83, 0x74, 0x83, 0x75, 0x83, 0x76, /* 0xD4-0xD7 */
+	0x83, 0x77, 0x83, 0x78, 0x83, 0x79, 0x83, 0x7A, /* 0xD8-0xDB */
+	0x83, 0x7B, 0x83, 0x7C, 0x83, 0x7D, 0x83, 0x7E, /* 0xDC-0xDF */
+	0x83, 0x80, 0x83, 0x81, 0x83, 0x82, 0x83, 0x83, /* 0xE0-0xE3 */
+	0x83, 0x84, 0x83, 0x85, 0x83, 0x86, 0x83, 0x87, /* 0xE4-0xE7 */
+	0x83, 0x88, 0x83, 0x89, 0x83, 0x8A, 0x83, 0x8B, /* 0xE8-0xEB */
+	0x83, 0x8C, 0x83, 0x8D, 0x83, 0x8E, 0x83, 0x8F, /* 0xEC-0xEF */
+	0x83, 0x90, 0x83, 0x91, 0x83, 0x92, 0x83, 0x93, /* 0xF0-0xF3 */
+	0x83, 0x94, 0x83, 0x95, 0x83, 0x96, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x81, 0x45, /* 0xF8-0xFB */
+	0x81, 0x5B, 0x81, 0x52, 0x81, 0x53, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_32[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0xFA, 0x58, 0x87, 0x8B, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x87, 0x8C, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x87, 0x85, 0x87, 0x86, 0x87, 0x87, 0x87, 0x88, /* 0xA4-0xA7 */
+	0x87, 0x89, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+};
+
+static unsigned char u2c_33[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x87, 0x65, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x87, 0x69, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x87, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x87, 0x63, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x87, 0x61, 0x87, 0x6B, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x87, 0x6A, 0x87, 0x64, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x87, 0x6C, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x87, 0x66, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x87, 0x6E, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x87, 0x5F, 0x87, 0x6D, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x87, 0x62, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x87, 0x67, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x87, 0x68, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x87, 0x7E, /* 0x78-0x7B */
+	0x87, 0x8F, 0x87, 0x8E, 0x87, 0x8D, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x87, 0x72, 0x87, 0x73, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x87, 0x6F, 0x87, 0x70, 0x87, 0x71, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x87, 0x75, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x87, 0x74, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x87, 0x83, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+};
+
+static unsigned char u2c_4E[512] = {
+	0x88, 0xEA, 0x92, 0x9A, 0x00, 0x00, 0x8E, 0xB5, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x96, 0x9C, /* 0x04-0x07 */
+	0x8F, 0xE4, 0x8E, 0x4F, 0x8F, 0xE3, 0x89, 0xBA, /* 0x08-0x0B */
+	0x00, 0x00, 0x95, 0x73, 0x97, 0x5E, 0x00, 0x00, /* 0x0C-0x0F */
+	0x98, 0xA0, 0x89, 0x4E, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x8A, 0x8E, 0x98, 0xA1, 0x90, 0xA2, 0x99, 0xC0, /* 0x14-0x17 */
+	0x8B, 0x75, 0x95, 0xB8, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x8F, 0xE5, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x97, 0xBC, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x95, 0xC0, 0x00, 0x00, /* 0x24-0x27 */
+	0xED, 0x4C, 0x00, 0x00, 0x98, 0xA2, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x92, 0x86, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x98, 0xA3, 0x8B, 0xF8, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x98, 0xA4, 0x00, 0x00, /* 0x34-0x37 */
+	0x8A, 0xDB, 0x92, 0x4F, 0x00, 0x00, 0x8E, 0xE5, /* 0x38-0x3B */
+	0x98, 0xA5, 0x00, 0x00, 0x00, 0x00, 0x98, 0xA6, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x98, 0xA7, 0x94, 0x54, /* 0x40-0x43 */
+	0x00, 0x00, 0x8B, 0x76, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x94, 0x56, /* 0x48-0x4B */
+	0x00, 0x00, 0x93, 0xE1, 0x8C, 0xC1, 0x96, 0x52, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0xE5, 0x68, 0x98, 0xA8, 0x8F, 0xE6, /* 0x54-0x57 */
+	0x98, 0xA9, 0x89, 0xB3, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x8B, 0xE3, 0x8C, 0xEE, 0x96, 0xE7, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x9B, 0xA4, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x97, 0x90, 0x00, 0x00, 0x93, 0xFB, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x8A, 0xA3, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x8B, 0x54, 0x00, 0x00, 0x98, 0xAA, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x98, 0xAB, 0x97, 0xB9, 0x00, 0x00, /* 0x84-0x87 */
+	0x97, 0x5C, 0x91, 0x88, 0x98, 0xAD, 0x8E, 0x96, /* 0x88-0x8B */
+	0x93, 0xF1, 0x00, 0x00, 0x98, 0xB0, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x89, 0x5D, 0x8C, 0xDD, 0x00, 0x00, /* 0x90-0x93 */
+	0x8C, 0xDC, 0x88, 0xE4, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x98, 0x6A, 0x98, 0x69, 0x00, 0x00, 0x8D, 0xB1, /* 0x98-0x9B */
+	0x88, 0x9F, 0x00, 0x00, 0x98, 0xB1, 0x98, 0xB2, /* 0x9C-0x9F */
+	0x98, 0xB3, 0x96, 0x53, 0x98, 0xB4, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x8C, 0xF0, 0x88, 0xE5, 0x96, 0x92, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x8B, 0x9C, 0x00, 0x00, 0x00, 0x00, 0x8B, 0x9D, /* 0xA8-0xAB */
+	0x8B, 0x9E, 0x92, 0xE0, 0x97, 0xBA, 0x00, 0x00, /* 0xAC-0xAF */
+	0x98, 0xB5, 0x00, 0x00, 0x00, 0x00, 0x98, 0xB6, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x98, 0xB7, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x90, 0x6C, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x8F, 0x59, 0x90, 0x6D, 0x98, 0xBC, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x98, 0xBA, 0x00, 0x00, 0x98, 0xBB, 0x8B, 0x77, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x8D, 0xA1, 0x89, 0xEE, /* 0xC8-0xCB */
+	0x00, 0x00, 0x98, 0xB9, 0x98, 0xB8, 0x95, 0xA7, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x8E, 0x65, 0x8E, 0x64, 0x91, 0xBC, 0x98, 0xBD, /* 0xD4-0xD7 */
+	0x95, 0x74, 0x90, 0xE5, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x81, 0x57, 0x98, 0xBE, 0x98, 0xC0, /* 0xDC-0xDF */
+	0x00, 0x00, 0xED, 0x4D, 0x00, 0x00, 0x91, 0xE3, /* 0xE0-0xE3 */
+	0x97, 0xDF, 0x88, 0xC8, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x98, 0xBF, 0x89, 0xBC, 0x00, 0x00, /* 0xEC-0xEF */
+	0x8B, 0xC2, 0x00, 0x00, 0x92, 0x87, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x8C, 0x8F, 0x98, 0xC1, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x94, 0x43, /* 0xF8-0xFB */
+	0xED, 0x4E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_4F[512] = {
+	0xED, 0x4F, 0x8A, 0xE9, 0x00, 0x00, 0xED, 0x50, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x98, 0xC2, 0x88, 0xC9, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x8C, 0xDE, 0x8A, 0xEA, 0x95, 0x9A, /* 0x0C-0x0F */
+	0x94, 0xB0, 0x8B, 0x78, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0xEF, 0x00, 0x00, /* 0x18-0x1B */
+	0x98, 0xE5, 0x93, 0x60, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x94, 0x8C, /* 0x2C-0x2F */
+	0x98, 0xC4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x94, 0xBA, 0x00, 0x00, 0x97, 0xE0, 0x00, 0x00, /* 0x34-0x37 */
+	0x90, 0x4C, 0xED, 0x51, 0x8E, 0x66, 0x00, 0x00, /* 0x38-0x3B */
+	0x8E, 0x97, 0x89, 0xBE, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x92, 0xCF, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x92, 0x41, 0x98, 0xC8, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x88, 0xCA, 0x92, 0xE1, 0x8F, 0x5A, /* 0x4C-0x4F */
+	0x8D, 0xB2, 0x97, 0x43, 0x00, 0x00, 0x91, 0xCC, /* 0x50-0x53 */
+	0x00, 0x00, 0x89, 0xBD, 0xED, 0x52, 0x98, 0xC7, /* 0x54-0x57 */
+	0x00, 0x00, 0x97, 0x5D, 0x98, 0xC3, 0x98, 0xC5, /* 0x58-0x5B */
+	0x8D, 0xEC, 0x98, 0xC6, 0x9B, 0x43, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x98, 0xCE, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x98, 0xD1, /* 0x6C-0x6F */
+	0x98, 0xCF, 0x00, 0x00, 0x00, 0x00, 0x89, 0xC0, /* 0x70-0x73 */
+	0x00, 0x00, 0x95, 0xB9, 0x98, 0xC9, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x98, 0xCD, /* 0x78-0x7B */
+	0x8C, 0xF1, 0x00, 0x00, 0x00, 0x00, 0x8E, 0x67, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8A, 0xA4, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x98, 0xD2, 0x00, 0x00, /* 0x84-0x87 */
+	0x98, 0xCA, 0x00, 0x00, 0xED, 0x54, 0x97, 0xE1, /* 0x88-0x8B */
+	0x00, 0x00, 0x8E, 0x98, 0x00, 0x00, 0x98, 0xCB, /* 0x8C-0x8F */
+	0x00, 0x00, 0x98, 0xD0, 0xED, 0x53, 0x00, 0x00, /* 0x90-0x93 */
+	0xED, 0x56, 0x00, 0x00, 0x98, 0xD3, 0x00, 0x00, /* 0x94-0x97 */
+	0x98, 0xCC, 0x00, 0x00, 0xED, 0x55, 0x8B, 0x9F, /* 0x98-0x9B */
+	0x00, 0x00, 0x88, 0xCB, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x8B, 0xA0, 0x89, 0xBF, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9B, 0x44, /* 0xA8-0xAB */
+	0x00, 0x00, 0x96, 0x99, 0x95, 0x8E, 0x8C, 0xF2, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x90, 0x4E, 0x97, 0xB5, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x95, 0xD6, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x8C, 0x57, 0x91, 0xA3, /* 0xC0-0xC3 */
+	0x89, 0xE2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xED, 0x45, 0x8F, 0x72, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0xED, 0x57, 0x98, 0xD7, 0x00, 0x00, /* 0xCC-0xCF */
+	0x98, 0xDC, 0x98, 0xDA, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x98, 0xD5, 0x00, 0x00, 0x00, 0x00, 0x91, 0xAD, /* 0xD4-0xD7 */
+	0x98, 0xD8, 0x00, 0x00, 0x98, 0xDB, 0x98, 0xD9, /* 0xD8-0xDB */
+	0x00, 0x00, 0x95, 0xDB, 0x00, 0x00, 0x98, 0xD6, /* 0xDC-0xDF */
+	0x00, 0x00, 0x90, 0x4D, 0x00, 0x00, 0x96, 0x93, /* 0xE0-0xE3 */
+	0x98, 0xDD, 0x98, 0xDE, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x8F, 0x43, 0x98, 0xEB, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x94, 0x6F, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x95, 0x55, 0x98, 0xE6, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x95, 0xEE, 0x00, 0x00, 0x89, 0xB4, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0x98, 0xEA, 0xED, 0x5A, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_50[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x98, 0xE4, 0x98, 0xED, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x91, 0x71, 0x00, 0x00, 0x8C, 0xC2, /* 0x08-0x0B */
+	0x00, 0x00, 0x94, 0x7B, 0x00, 0x00, 0xE0, 0xC5, /* 0x0C-0x0F */
+	0x00, 0x00, 0x98, 0xEC, 0x93, 0x7C, 0x00, 0x00, /* 0x10-0x13 */
+	0x98, 0xE1, 0x00, 0x00, 0x8C, 0xF4, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x8C, 0xF3, 0x98, 0xDF, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0xED, 0x5B, 0x8E, 0xD8, /* 0x1C-0x1F */
+	0x00, 0x00, 0x98, 0xE7, 0xED, 0x59, 0x95, 0xED, /* 0x20-0x23 */
+	0x92, 0x6C, 0x98, 0xE3, 0x8C, 0x91, 0x00, 0x00, /* 0x24-0x27 */
+	0x98, 0xE0, 0x98, 0xE8, 0x98, 0xE2, 0x97, 0xCF, /* 0x28-0x2B */
+	0x98, 0xE9, 0x98, 0x60, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x8B, 0xE4, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x8C, 0x90, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0xED, 0x58, 0x00, 0x00, 0xED, 0x5E, 0x98, 0xEE, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xED, 0x5C, 0x98, 0xEF, /* 0x44-0x47 */
+	0x98, 0xF3, 0x88, 0xCC, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x95, 0xCE, /* 0x4C-0x4F */
+	0x98, 0xF2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x98, 0xF1, 0x98, 0xF5, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x98, 0xF4, 0x00, 0x00, /* 0x58-0x5B */
+	0x92, 0xE2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x8C, 0x92, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x98, 0xF6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0xED, 0x5D, 0x00, 0x00, 0x8E, 0xC3, 0x00, 0x00, /* 0x70-0x73 */
+	0x91, 0xA4, 0x92, 0xE3, 0x8B, 0xF4, 0x00, 0x00, /* 0x74-0x77 */
+	0x98, 0xF7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x8B, 0x55, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x98, 0xF8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x98, 0xFA, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x96, 0x54, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x8C, 0x86, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0xED, 0x5F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x8E, 0x50, 0x94, 0xF5, 0x98, 0xF9, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x8D, 0xC3, 0x97, 0x62, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x98, 0xFC, 0x99, 0x42, /* 0xB0-0xB3 */
+	0x98, 0xFB, 0x8D, 0xC2, 0x00, 0x00, 0x8F, 0x9D, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x8C, 0x58, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x99, 0x43, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x8B, 0xCD, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x99, 0x40, 0x99, 0x41, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x93, 0xAD, 0x00, 0x00, 0x91, 0x9C, /* 0xCC-0xCF */
+	0x00, 0x00, 0x8B, 0xA1, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x96, 0x6C, 0x99, 0x44, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xED, 0x61, 0x00, 0x00, 0x97, 0xBB, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x99, 0x45, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x99, 0x48, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x99, 0x46, 0x00, 0x00, 0x91, 0x6D, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x99, 0x47, 0x99, 0x49, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xED, 0x60, 0x99, 0x4B, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x99, 0x4A, 0x00, 0x00, 0x95, 0xC6, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_51[512] = {
+	0x8B, 0x56, 0x99, 0x4D, 0x99, 0x4E, 0x00, 0x00, /* 0x00-0x03 */
+	0x89, 0xAD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x99, 0x4C, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x8E, 0xF2, 0x00, 0x00, /* 0x10-0x13 */
+	0x99, 0x51, 0x99, 0x50, 0x99, 0x4F, 0x00, 0x00, /* 0x14-0x17 */
+	0x98, 0xD4, 0x00, 0x00, 0x99, 0x52, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8F, 0x9E, /* 0x1C-0x1F */
+	0x00, 0x00, 0x99, 0x53, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x97, 0x44, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x96, 0xD7, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x99, 0x55, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x99, 0x54, 0x99, 0x57, /* 0x38-0x3B */
+	0x99, 0x56, 0x00, 0x00, 0x00, 0x00, 0x99, 0x58, /* 0x3C-0x3F */
+	0x99, 0x59, 0x88, 0xF2, 0x00, 0x00, 0x8C, 0xB3, /* 0x40-0x43 */
+	0x8C, 0x5A, 0x8F, 0x5B, 0x92, 0x9B, 0x8B, 0xA2, /* 0x44-0x47 */
+	0x90, 0xE6, 0x8C, 0xF5, 0xED, 0x62, 0x8D, 0x8E, /* 0x48-0x4B */
+	0x99, 0x5B, 0x96, 0xC6, 0x93, 0x65, 0x00, 0x00, /* 0x4C-0x4F */
+	0x8E, 0x99, 0x00, 0x00, 0x99, 0x5A, 0x00, 0x00, /* 0x50-0x53 */
+	0x99, 0x5C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x93, 0x7D, 0x00, 0x00, /* 0x58-0x5B */
+	0x8A, 0x95, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x99, 0x5D, 0x00, 0x00, /* 0x60-0x63 */
+	0xED, 0x63, 0x93, 0xFC, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x91, 0x53, 0x99, 0x5F, 0x99, 0x60, 0x94, 0xAA, /* 0x68-0x6B */
+	0x8C, 0xF6, 0x98, 0x5A, 0x99, 0x61, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x8B, 0xA4, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x95, 0xBA, 0x91, 0xB4, 0x8B, 0xEF, /* 0x74-0x77 */
+	0x93, 0x54, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x8C, 0x93, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x99, 0x62, 0x00, 0x00, 0x99, 0x63, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x93, 0xE0, 0x89, 0x7E, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x99, 0x66, 0x8D, 0xFB, 0x00, 0x00, /* 0x88-0x8B */
+	0x99, 0x65, 0x8D, 0xC4, 0x00, 0x00, 0x99, 0x67, /* 0x8C-0x8F */
+	0xE3, 0xEC, 0x99, 0x68, 0x96, 0x60, 0x99, 0x69, /* 0x90-0x93 */
+	0x00, 0x00, 0x99, 0x6A, 0x99, 0x6B, 0x8F, 0xE7, /* 0x94-0x97 */
+	0x00, 0x00, 0x8E, 0xCA, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0xED, 0x64, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x8A, 0xA5, 0x00, 0x00, 0x99, 0x6E, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x99, 0x6C, 0x96, 0xBB, 0x99, 0x6D, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x95, 0x79, 0x99, 0x6F, 0x99, 0x70, 0x99, 0x71, /* 0xA8-0xAB */
+	0x93, 0x7E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x99, 0x75, 0x99, 0x73, 0x99, 0x74, 0x99, 0x72, /* 0xB0-0xB3 */
+	0x8D, 0xE1, 0x99, 0x76, 0x96, 0xE8, 0x97, 0xE2, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x99, 0x77, 0xED, 0x65, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x90, 0xA6, 0x99, 0x78, 0x8F, 0x79, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x99, 0x79, 0x00, 0x00, 0x92, 0x9C, /* 0xC8-0xCB */
+	0x97, 0xBD, 0x93, 0x80, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x99, 0xC3, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x99, 0x7A, /* 0xD8-0xDB */
+	0xEA, 0xA3, 0x8B, 0xC3, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x99, 0x7B, 0x96, 0x7D, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x8F, 0x88, 0x91, 0xFA, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x99, 0x7D, 0x93, 0xE2, 0x00, 0x00, /* 0xE8-0xEB */
+	0xED, 0x66, 0x99, 0x7E, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x99, 0x80, 0x8A, 0x4D, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x99, 0x81, 0x8B, 0xA5, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x93, 0xCA, 0x89, 0x9A, 0x8F, 0x6F, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x94, 0x9F, 0x99, 0x82, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_52[512] = {
+	0x93, 0x81, 0x00, 0x00, 0x00, 0x00, 0x90, 0x6E, /* 0x00-0x03 */
+	0x99, 0x83, 0x00, 0x00, 0x95, 0xAA, 0x90, 0xD8, /* 0x04-0x07 */
+	0x8A, 0xA0, 0x00, 0x00, 0x8A, 0xA7, 0x99, 0x84, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x99, 0x86, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x8C, 0x59, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x99, 0x85, 0xED, 0x67, 0x00, 0x00, 0x97, 0xF1, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x8F, 0x89, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x94, 0xBB, 0x95, 0xCA, 0x00, 0x00, 0x99, 0x87, /* 0x24-0x27 */
+	0x00, 0x00, 0x97, 0x98, 0x99, 0x88, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x99, 0x89, 0x00, 0x00, /* 0x2C-0x2F */
+	0x93, 0x9E, 0x00, 0x00, 0x00, 0x00, 0x99, 0x8A, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x90, 0xA7, 0x8D, 0xFC, /* 0x34-0x37 */
+	0x8C, 0x94, 0x99, 0x8B, 0x8E, 0x68, 0x8D, 0x8F, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x92, 0xE4, /* 0x40-0x43 */
+	0x99, 0x8D, 0x00, 0x00, 0x00, 0x00, 0x91, 0xA5, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x8D, 0xED, 0x99, 0x8E, /* 0x48-0x4B */
+	0x99, 0x8F, 0x91, 0x4F, 0x00, 0x00, 0x99, 0x8C, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x99, 0x91, 0x00, 0x00, 0x96, 0x55, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8D, 0x84, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x99, 0x90, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8C, 0x95, /* 0x60-0x63 */
+	0x8D, 0xDC, 0x94, 0x8D, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x99, 0x94, 0x99, 0x92, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x95, 0x9B, /* 0x6C-0x6F */
+	0x8F, 0xE8, 0x99, 0x9B, 0x8A, 0x84, 0x99, 0x95, /* 0x70-0x73 */
+	0x99, 0x93, 0x91, 0x6E, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x99, 0x97, 0x00, 0x00, 0x99, 0x96, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8A, 0x63, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8C, 0x80, /* 0x84-0x87 */
+	0x99, 0x9C, 0x97, 0xAB, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x99, 0x98, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x99, 0x9D, 0x99, 0x9A, 0x00, 0x00, /* 0x90-0x93 */
+	0x99, 0x99, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x97, 0xCD, /* 0x98-0x9B */
+	0xED, 0x68, 0x00, 0x00, 0x00, 0x00, 0x8C, 0xF7, /* 0x9C-0x9F */
+	0x89, 0xC1, 0x00, 0x00, 0x00, 0x00, 0x97, 0xF2, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0xED, 0x69, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x8F, 0x95, 0x93, 0x77, 0x8D, 0x85, /* 0xA8-0xAB */
+	0x99, 0xA0, 0x99, 0xA1, 0x00, 0x00, 0xEE, 0x5B, /* 0xAC-0xAF */
+	0x00, 0x00, 0x97, 0xE3, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x98, 0x4A, 0x99, 0xA3, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x8C, 0xF8, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x99, 0xA2, 0x00, 0x00, 0x8A, 0x4E, 0x00, 0x00, /* 0xBC-0xBF */
+	0xED, 0x6A, 0x99, 0xA4, 0x00, 0x00, 0x96, 0x75, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x92, 0xBA, 0x00, 0x00, 0x97, 0x45, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x95, 0xD7, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x99, 0xA5, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0xE8, 0xD3, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x93, 0xAE, 0x00, 0x00, 0x99, 0xA6, /* 0xD4-0xD7 */
+	0x8A, 0xA8, 0x96, 0xB1, 0x00, 0x00, 0xED, 0x6B, /* 0xD8-0xDB */
+	0x00, 0x00, 0x8F, 0x9F, 0x99, 0xA7, 0x95, 0xE5, /* 0xDC-0xDF */
+	0x99, 0xAB, 0x00, 0x00, 0x90, 0xA8, 0x99, 0xA8, /* 0xE0-0xE3 */
+	0x8B, 0xCE, 0x00, 0x00, 0x99, 0xA9, 0x8A, 0xA9, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x8C, 0x4D, 0x99, 0xAC, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x99, 0xAD, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x99, 0xAE, 0x99, 0xAF, 0x8E, 0xD9, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0x8C, 0xF9, 0x96, 0xDC, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_53[512] = {
+	0xED, 0x6C, 0x96, 0xE6, 0x93, 0xF5, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x95, 0xEF, 0x99, 0xB0, 0xED, 0x6D, /* 0x04-0x07 */
+	0x99, 0xB1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x99, 0xB3, 0x00, 0x00, 0x99, 0xB5, /* 0x0C-0x0F */
+	0x99, 0xB4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x99, 0xB6, 0x89, 0xBB, 0x96, 0x6B, /* 0x14-0x17 */
+	0x00, 0x00, 0x8D, 0xFA, 0x99, 0xB7, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x91, 0x78, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x8F, 0xA0, 0x8B, 0xA7, 0x00, 0x00, 0x99, 0xB8, /* 0x20-0x23 */
+	0xED, 0x6E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x94, 0xD9, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x99, 0xB9, /* 0x2C-0x2F */
+	0x00, 0x00, 0x99, 0xBA, 0x00, 0x00, 0x99, 0xBB, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x99, 0xBC, 0x95, 0x43, 0x8B, 0xE6, 0x88, 0xE3, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x93, 0xBD, /* 0x3C-0x3F */
+	0x99, 0xBD, 0x8F, 0x5C, 0x00, 0x00, 0x90, 0xE7, /* 0x40-0x43 */
+	0x00, 0x00, 0x99, 0xBF, 0x99, 0xBE, 0x8F, 0xA1, /* 0x44-0x47 */
+	0x8C, 0xDF, 0x99, 0xC1, 0x94, 0xBC, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x99, 0xC2, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x94, 0xDA, 0x91, 0xB2, 0x91, 0xEC, /* 0x50-0x53 */
+	0x8B, 0xA6, 0x00, 0x00, 0x00, 0x00, 0x93, 0xEC, /* 0x54-0x57 */
+	0x92, 0x50, 0x00, 0x00, 0x94, 0x8E, 0x00, 0x00, /* 0x58-0x5B */
+	0x96, 0x6D, 0x00, 0x00, 0x99, 0xC4, 0x00, 0x00, /* 0x5C-0x5F */
+	0x90, 0xE8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x8C, 0x54, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x99, 0xC5, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x99, 0xC6, 0x89, 0x4B, /* 0x6C-0x6F */
+	0x88, 0xF3, 0x8A, 0xEB, 0xED, 0x6F, 0x91, 0xA6, /* 0x70-0x73 */
+	0x8B, 0x70, 0x97, 0x91, 0x00, 0x00, 0x99, 0xC9, /* 0x74-0x77 */
+	0x89, 0xB5, 0x00, 0x00, 0x00, 0x00, 0x99, 0xC8, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8B, 0xA8, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x99, 0xCA, 0x00, 0x00, /* 0x80-0x83 */
+	0x96, 0xEF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xED, 0x70, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x99, 0xCB, 0x00, 0x00, /* 0x94-0x97 */
+	0x97, 0xD0, 0x00, 0x00, 0x8C, 0xFA, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8C, 0xB4, /* 0x9C-0x9F */
+	0x99, 0xCC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x99, 0xCE, 0x99, 0xCD, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x90, 0x7E, 0x89, 0x58, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x89, 0x7D, 0x99, 0xCF, 0x00, 0x00, /* 0xAC-0xAF */
+	0x99, 0xD0, 0x00, 0x00, 0xED, 0x71, 0x8C, 0xB5, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x99, 0xD1, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8B, 0x8E, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x8E, 0x51, 0x99, 0xD2, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x96, 0x94, 0x8D, 0xB3, 0x8B, 0x79, 0x97, 0x46, /* 0xC8-0xCB */
+	0x91, 0x6F, 0x94, 0xBD, 0x8E, 0xFB, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x8F, 0x66, 0x00, 0x00, 0x8E, 0xE6, 0x8E, 0xF3, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x8F, 0x96, 0x00, 0x00, 0x94, 0xBE, /* 0xD8-0xDB */
+	0x00, 0x00, 0xED, 0x72, 0x00, 0x00, 0x99, 0xD5, /* 0xDC-0xDF */
+	0x00, 0x00, 0x89, 0x62, 0x91, 0x70, 0x8C, 0xFB, /* 0xE0-0xE3 */
+	0x8C, 0xC3, 0x8B, 0xE5, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x99, 0xD9, 0x92, 0x40, 0x91, 0xFC, 0x8B, 0xA9, /* 0xE8-0xEB */
+	0x8F, 0xA2, 0x99, 0xDA, 0x99, 0xD8, 0x89, 0xC2, /* 0xEC-0xEF */
+	0x91, 0xE4, 0x8E, 0xB6, 0x8E, 0x6A, 0x89, 0x45, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x8A, 0x90, 0x8D, 0x86, /* 0xF4-0xF7 */
+	0x8E, 0x69, 0x00, 0x00, 0x99, 0xDB, 0x00, 0x00, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_54[512] = {
+	0x00, 0x00, 0x99, 0xDC, 0x00, 0x00, 0x8B, 0x68, /* 0x00-0x03 */
+	0x8A, 0x65, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x8D, 0x87, 0x8B, 0x67, 0x92, 0xDD, 0x89, 0x44, /* 0x08-0x0B */
+	0x93, 0xAF, 0x96, 0xBC, 0x8D, 0x40, 0x97, 0x99, /* 0x0C-0x0F */
+	0x93, 0x66, 0x8C, 0xFC, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8C, 0x4E, /* 0x18-0x1B */
+	0x00, 0x00, 0x99, 0xE5, 0x00, 0x00, 0x8B, 0xE1, /* 0x1C-0x1F */
+	0x96, 0x69, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x94, 0xDB, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x99, 0xE4, 0x00, 0x00, 0x8A, 0xDC, /* 0x28-0x2B */
+	0x99, 0xDF, 0x99, 0xE0, 0x99, 0xE2, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x99, 0xE3, 0x00, 0x00, /* 0x34-0x37 */
+	0x8B, 0x7A, 0x90, 0x81, 0x00, 0x00, 0x95, 0xAB, /* 0x38-0x3B */
+	0x99, 0xE1, 0x99, 0xDD, 0x8C, 0xE1, 0x00, 0x00, /* 0x3C-0x3F */
+	0x99, 0xDE, 0x00, 0x00, 0x98, 0x43, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x95, 0xF0, 0x00, 0x00, /* 0x44-0x47 */
+	0x92, 0xE6, 0x8C, 0xE0, 0x8D, 0x90, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x99, 0xE6, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x93, 0xDB, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x99, 0xEA, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x8E, 0xFC, 0x00, 0x00, 0x8E, 0xF4, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x99, 0xED, 0x99, 0xEB, 0x00, 0x00, 0x96, 0xA1, /* 0x70-0x73 */
+	0x00, 0x00, 0x99, 0xE8, 0x99, 0xF1, 0x99, 0xEC, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x99, 0xEF, /* 0x78-0x7B */
+	0x8C, 0xC4, 0x96, 0xBD, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x99, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x99, 0xF2, 0x00, 0x00, 0x99, 0xF4, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0xED, 0x75, 0x8D, 0xEE, /* 0x88-0x8B */
+	0x98, 0x61, 0x00, 0x00, 0x99, 0xE9, 0x99, 0xE7, /* 0x8C-0x8F */
+	0x99, 0xF3, 0x00, 0x00, 0x99, 0xEE, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0xED, 0x74, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x99, 0xF6, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x9A, 0x42, 0x99, 0xF8, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x99, 0xFC, 0xED, 0x76, 0x00, 0x00, 0x9A, 0x40, /* 0xA8-0xAB */
+	0x99, 0xF9, 0x00, 0x00, 0x00, 0x00, 0x9A, 0x5D, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x8D, 0xE7, 0x8A, 0x50, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x99, 0xF7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x9A, 0x44, 0x88, 0xF4, 0x9A, 0x43, 0x00, 0x00, /* 0xBC-0xBF */
+	0x88, 0xA3, 0x95, 0x69, 0x9A, 0x41, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x99, 0xFA, 0x00, 0x00, 0x00, 0x00, 0x99, 0xF5, /* 0xC4-0xC7 */
+	0x99, 0xFB, 0x8D, 0xC6, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x9A, 0x45, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x88, 0xF5, 0x9A, 0x4E, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x9A, 0x46, 0x9A, 0x47, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x8F, 0xA3, 0x96, 0x89, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x9A, 0x4C, 0x9A, 0x4B, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x93, 0x4E, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x9A, 0x4D, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x9A, 0x4A, 0x00, 0x00, 0xED, 0x77, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_55[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x89, 0x53, 0x00, 0x00, 0x8D, 0xB4, 0x90, 0x4F, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9A, 0x48, /* 0x0C-0x0F */
+	0x93, 0x82, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x9A, 0x49, 0x00, 0x00, 0x88, 0xA0, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x9A, 0x53, 0x97, 0x42, /* 0x2C-0x2F */
+	0x00, 0x00, 0x8F, 0xA5, 0x00, 0x00, 0x9A, 0x59, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x9A, 0x58, 0x9A, 0x4F, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x91, 0xC1, 0x00, 0x00, /* 0x3C-0x3F */
+	0x9A, 0x50, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x91, 0xED, 0x9A, 0x55, 0x8F, 0xA4, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x9A, 0x52, 0x00, 0x00, 0x00, 0x00, 0x96, 0xE2, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8C, 0x5B, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x9A, 0x56, 0x9A, 0x57, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x9A, 0x54, 0x9A, 0x5A, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9A, 0x51, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9A, 0x60, /* 0x78-0x7B */
+	0x9A, 0x65, 0x00, 0x00, 0x9A, 0x61, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x9A, 0x5C, 0x00, 0x00, 0x00, 0x00, 0x9A, 0x66, /* 0x80-0x83 */
+	0x91, 0x50, 0x00, 0x00, 0xED, 0x78, 0x9A, 0x68, /* 0x84-0x87 */
+	0x00, 0x00, 0x8D, 0x41, 0x9A, 0x5E, 0x92, 0x9D, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x9A, 0x62, 0x9A, 0x5B, 0x8A, 0xAB, 0x00, 0x00, /* 0x98-0x9B */
+	0x8A, 0xEC, 0x8A, 0x85, 0x9A, 0x63, 0x9A, 0x5F, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8C, 0x96, /* 0xA4-0xA7 */
+	0x9A, 0x69, 0x9A, 0x67, 0x91, 0x72, 0x8B, 0x69, /* 0xA8-0xAB */
+	0x8B, 0xAA, 0x00, 0x00, 0x9A, 0x64, 0x00, 0x00, /* 0xAC-0xAF */
+	0x8B, 0xF2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0x63, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x9A, 0x6D, 0x9A, 0x6B, 0x00, 0x00, 0x9A, 0xA5, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x9A, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x9A, 0x6A, 0x00, 0x00, /* 0xD8-0xDB */
+	0x9A, 0x6E, 0x00, 0x00, 0x00, 0x00, 0x9A, 0x6C, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8E, 0x6B, /* 0xE0-0xE3 */
+	0x9A, 0x6F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9A, 0x72, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x9A, 0x77, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x9A, 0x75, 0x9A, 0x74, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_56[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x92, 0x51, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x89, 0xC3, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x9A, 0x71, 0x00, 0x00, 0x9A, 0x73, 0x8F, 0xA6, /* 0x14-0x17 */
+	0x89, 0x52, 0x00, 0x00, 0x00, 0x00, 0x9A, 0x76, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x89, 0xDC, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9A, 0x82, /* 0x2C-0x2F */
+	0x00, 0x00, 0x8F, 0xFA, 0x9A, 0x7D, 0x00, 0x00, /* 0x30-0x33 */
+	0x9A, 0x7B, 0x00, 0x00, 0x9A, 0x7C, 0x00, 0x00, /* 0x34-0x37 */
+	0x9A, 0x7E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0x5C, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x91, 0x58, 0x00, 0x00, 0x9A, 0x78, 0x00, 0x00, /* 0x4C-0x4F */
+	0x9A, 0x79, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8A, 0x9A, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x9A, 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x8A, 0xED, 0x00, 0x00, 0x9A, 0x84, 0x9A, 0x80, /* 0x68-0x6B */
+	0x9A, 0x83, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x95, 0xAC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x93, 0xD3, 0x00, 0x00, 0x94, 0xB6, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x9A, 0x86, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x9A, 0x85, 0x8A, 0x64, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x9A, 0x87, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9A, 0x8A, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x9A, 0x89, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x9A, 0x88, 0x00, 0x00, 0x94, 0x58, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x9A, 0x8B, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x9A, 0x8C, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x9A, 0x8E, 0x00, 0x00, 0x9A, 0x8D, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x9A, 0x90, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x9A, 0x93, 0x9A, 0x91, 0x9A, 0x8F, 0x9A, 0x92, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x9A, 0x94, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x9A, 0x95, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x9A, 0x96, 0x00, 0x00, 0x9A, 0x97, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9A, 0x98, /* 0xD4-0xD7 */
+	0x99, 0x64, 0x00, 0x00, 0x8E, 0xFA, 0x8E, 0x6C, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0xF1, 0x00, 0x00, /* 0xDC-0xDF */
+	0x88, 0xF6, 0x00, 0x00, 0x00, 0x00, 0x92, 0x63, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x9A, 0x99, 0x00, 0x00, /* 0xEC-0xEF */
+	0x8D, 0xA2, 0x00, 0x00, 0x88, 0xCD, 0x90, 0x7D, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x9A, 0x9A, 0x8C, 0xC5, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x8D, 0x91, 0x00, 0x00, 0x9A, 0x9C, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_57[512] = {
+	0x9A, 0x9B, 0x00, 0x00, 0x00, 0x00, 0x95, 0xDE, /* 0x00-0x03 */
+	0x9A, 0x9D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x9A, 0x9F, 0x9A, 0x9E, 0x00, 0x00, 0x9A, 0xA0, /* 0x08-0x0B */
+	0x00, 0x00, 0x9A, 0xA1, 0x00, 0x00, 0x8C, 0x97, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0x80, 0x9A, 0xA2, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x9A, 0xA4, 0x00, 0x00, /* 0x14-0x17 */
+	0x9A, 0xA3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x9A, 0xA6, 0x00, 0x00, 0x00, 0x00, 0x93, 0x79, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x9A, 0xA7, 0x88, 0xB3, /* 0x24-0x27 */
+	0x8D, 0xDD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x8C, 0x5C, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x92, 0x6E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9A, 0xA8, /* 0x34-0x37 */
+	0x9A, 0xA9, 0x00, 0x00, 0x00, 0x00, 0x9A, 0xAB, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x9A, 0xAC, 0x00, 0x00, 0x8D, 0xE2, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8B, 0xCF, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x96, 0x56, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x9A, 0xAA, 0x9A, 0xAD, /* 0x4C-0x4F */
+	0x8D, 0xBF, 0x8D, 0x42, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0xED, 0x79, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x9A, 0xB1, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x8D, 0xA3, 0xED, 0x7A, 0x92, 0x52, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x9A, 0xAE, 0x92, 0xD8, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9A, 0xB2, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x90, 0x82, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x9A, 0xB0, 0x9A, 0xB3, 0x00, 0x00, 0x8C, 0x5E, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9A, 0xB4, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x9A, 0xB5, 0x00, 0x00, 0x8D, 0x43, 0x8A, 0x5F, /* 0xA0-0xA3 */
+	0x9A, 0xB7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x9A, 0xB8, 0x00, 0x00, /* 0xA8-0xAB */
+	0xED, 0x7B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x9A, 0xB9, 0x00, 0x00, 0x00, 0x00, 0x9A, 0xB6, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x9A, 0xAF, 0x00, 0x00, 0x00, 0x00, 0x9A, 0xBA, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x9A, 0xBB, 0xED, 0x7D, /* 0xC4-0xC7 */
+	0xED, 0x7C, 0x00, 0x00, 0x00, 0x00, 0x96, 0x84, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x8F, 0xE9, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x9A, 0xBD, 0x9A, 0xBE, /* 0xD0-0xD3 */
+	0x9A, 0xBC, 0x00, 0x00, 0x9A, 0xC0, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x94, 0x57, 0x00, 0x00, 0x00, 0x00, 0x88, 0xE6, /* 0xDC-0xDF */
+	0x95, 0x75, 0x00, 0x00, 0x00, 0x00, 0x9A, 0xC1, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x8F, 0xFB, 0x00, 0x00, 0x00, 0x00, 0x8E, 0xB7, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x94, 0x7C, 0x8A, 0xEE, 0x00, 0x00, /* 0xF8-0xFB */
+	0x8D, 0xE9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_58[512] = {
+	0x96, 0x78, 0x00, 0x00, 0x93, 0xB0, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x8C, 0x98, 0x91, 0xCD, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x9A, 0xBF, 0x9A, 0xC2, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x91, 0xC2, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x9A, 0xC3, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x9A, 0xC4, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x9A, 0xC6, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x92, 0xE7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x8A, 0xAC, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEA, 0x9F, /* 0x2C-0x2F */
+	0x89, 0x81, 0x95, 0xF1, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x8F, 0xEA, 0x93, 0x67, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x8D, 0xE4, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x9A, 0xCC, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x95, 0xBB, 0x97, 0xDB, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0xF2, 0x9A, 0xC8, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x91, 0x59, 0x9A, 0xCB, 0x00, 0x00, /* 0x50-0x53 */
+	0x93, 0x83, 0x00, 0x00, 0x00, 0x00, 0x93, 0x68, /* 0x54-0x57 */
+	0x93, 0x84, 0x94, 0xB7, 0x92, 0xCB, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x8D, 0xC7, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x9A, 0xC7, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x89, 0x96, 0x00, 0x00, 0x93, 0x55, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x9A, 0xC9, 0x00, 0x00, 0x9A, 0xC5, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x90, 0x6F, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x9A, 0xCD, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x8F, 0x6D, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8B, 0xAB, /* 0x80-0x83 */
+	0x00, 0x00, 0x9A, 0xCE, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x95, 0xE6, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x91, 0x9D, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x92, 0xC4, 0x00, 0x00, 0xED, 0x81, 0x9A, 0xD0, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x96, 0x6E, 0x00, 0x00, 0x00, 0x00, 0x9A, 0xD1, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x9A, 0xD6, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0xED, 0x82, 0x95, 0xAD, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x9A, 0xD5, 0x9A, 0xCF, 0x9A, 0xD2, 0x9A, 0xD4, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x8D, 0xA4, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x95, 0xC7, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x9A, 0xD7, 0x00, 0x00, 0x92, 0x64, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0xF3, 0x00, 0x00, /* 0xC8-0xCB */
+	0x8F, 0xEB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x9A, 0xD9, 0x00, 0x00, 0x9A, 0xD8, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x8D, 0x88, 0x00, 0x00, 0x9A, 0xDA, /* 0xD4-0xD7 */
+	0x9A, 0xDC, 0x9A, 0xDB, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x9A, 0xDE, 0x00, 0x00, 0x9A, 0xD3, 0x9A, 0xE0, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x9A, 0xDF, 0x9A, 0xDD, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8E, 0x6D, /* 0xE8-0xEB */
+	0x90, 0x70, 0x00, 0x00, 0x91, 0x73, 0x9A, 0xE1, /* 0xEC-0xEF */
+	0x90, 0xBA, 0x88, 0xEB, 0x94, 0x84, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x92, 0xD9, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x9A, 0xE3, 0x9A, 0xE2, 0x9A, 0xE4, /* 0xF8-0xFB */
+	0x9A, 0xE5, 0x9A, 0xE6, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_59[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x9A, 0xE7, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x95, 0xCF, 0x9A, 0xE8, 0xED, 0x83, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x89, 0xC4, /* 0x0C-0x0F */
+	0x9A, 0xE9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x97, 0x5B, 0x8A, 0x4F, 0x00, 0x00, /* 0x14-0x17 */
+	0x99, 0xC7, 0x8F, 0x67, 0x91, 0xBD, 0x9A, 0xEA, /* 0x18-0x1B */
+	0x96, 0xE9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x96, 0xB2, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x9A, 0xEC, 0x00, 0x00, 0x91, 0xE5, /* 0x24-0x27 */
+	0x00, 0x00, 0x93, 0x56, 0x91, 0xBE, 0x95, 0x76, /* 0x28-0x2B */
+	0x9A, 0xED, 0x9A, 0xEE, 0x89, 0x9B, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x8E, 0xB8, 0x9A, 0xEF, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0xCE, /* 0x34-0x37 */
+	0x9A, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x9A, 0xF1, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x89, 0x82, 0x00, 0x00, 0x00, 0x00, 0x8A, 0xEF, /* 0x44-0x47 */
+	0x93, 0xDE, 0x95, 0xF2, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x9A, 0xF5, 0x91, 0x74, /* 0x4C-0x4F */
+	0x9A, 0xF4, 0x8C, 0x5F, 0x00, 0x00, 0xED, 0x84, /* 0x50-0x53 */
+	0x96, 0x7A, 0x9A, 0xF3, 0x00, 0x00, 0x93, 0x85, /* 0x54-0x57 */
+	0x9A, 0xF7, 0x00, 0x00, 0x9A, 0xF6, 0xED, 0x85, /* 0x58-0x5B */
+	0x00, 0x00, 0xED, 0x86, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x9A, 0xF9, 0x00, 0x00, 0x9A, 0xF8, 0xED, 0x87, /* 0x60-0x63 */
+	0x00, 0x00, 0x89, 0x9C, 0x00, 0x00, 0x9A, 0xFA, /* 0x64-0x67 */
+	0x8F, 0xA7, 0x9A, 0xFC, 0x92, 0x44, 0x00, 0x00, /* 0x68-0x6B */
+	0x9A, 0xFB, 0x00, 0x00, 0x95, 0xB1, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8F, 0x97, /* 0x70-0x73 */
+	0x93, 0x7A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x9B, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x8D, 0x44, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x9B, 0x41, 0x94, 0x40, 0x94, 0xDC, /* 0x80-0x83 */
+	0x96, 0xCF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x94, 0x44, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x9B, 0x4A, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8B, 0x57, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x97, 0x64, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x96, 0xAD, 0x00, 0x00, 0x9B, 0xAA, /* 0x98-0x9B */
+	0x00, 0x00, 0x9B, 0x42, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9B, 0x45, /* 0xA0-0xA3 */
+	0xED, 0x88, 0x91, 0xC3, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x96, 0x57, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x93, 0x69, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x9B, 0x46, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x96, 0x85, 0xED, 0x89, 0x8D, 0xC8, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x8F, 0xA8, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x9B, 0x47, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x8E, 0x6F, 0x00, 0x00, 0x8E, 0x6E, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x88, 0xB7, 0x8C, 0xC6, 0x00, 0x00, 0x90, 0xA9, /* 0xD0-0xD3 */
+	0x88, 0xCF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x9B, 0x4B, 0x9B, 0x4C, 0x00, 0x00, /* 0xD8-0xDB */
+	0x9B, 0x49, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x89, 0x57, 0x8A, 0xAD, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x9B, 0x48, 0x00, 0x00, 0x96, 0xC3, 0x95, 0x50, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x88, 0xA6, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0xF7, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8E, 0x70, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_5A[512] = {
+	0x00, 0x00, 0x88, 0xD0, 0x00, 0x00, 0x88, 0xA1, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x9B, 0x51, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x9B, 0x4F, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x96, 0xBA, 0x00, 0x00, 0x9B, 0x52, 0x00, 0x00, /* 0x18-0x1B */
+	0x9B, 0x50, 0x00, 0x00, 0x00, 0x00, 0x9B, 0x4E, /* 0x1C-0x1F */
+	0x90, 0x50, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x9B, 0x4D, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x95, 0xD8, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8C, 0xE2, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x9B, 0x56, 0x9B, 0x57, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x8F, 0xA9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x9B, 0x53, 0x98, 0x4B, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x94, 0x6B, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x9B, 0x55, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x8D, 0xA5, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x9B, 0x58, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x95, 0x77, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x9B, 0x59, 0x00, 0x00, /* 0x68-0x6B */
+	0x9B, 0x54, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x96, 0xB9, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x94, 0x7D, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x9B, 0x5A, 0x95, 0x51, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x9B, 0x5B, 0x9B, 0x5F, 0x9B, 0x5C, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x89, 0xC5, 0x9B, 0x5E, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x8E, 0xB9, 0x00, 0x00, 0x9B, 0x5D, /* 0xC8-0xCB */
+	0x8C, 0x99, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x9B, 0x6B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x9B, 0x64, 0x9B, 0x61, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x92, 0x84, 0x00, 0x00, 0x9B, 0x60, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x9B, 0x62, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x9B, 0x63, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x9B, 0x65, 0x9B, 0x66, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_5B[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x8A, 0xF0, 0x00, 0x00, 0x9B, 0x68, /* 0x08-0x0B */
+	0x9B, 0x67, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x9B, 0x69, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x8F, 0xEC, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x9B, 0x6C, 0x00, 0x00, /* 0x28-0x2B */
+	0x92, 0xDA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x89, 0x64, 0x00, 0x00, 0x9B, 0x6A, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x9B, 0x6D, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x9B, 0x6E, 0x00, 0x00, /* 0x3C-0x3F */
+	0x9B, 0x71, 0x00, 0x00, 0x00, 0x00, 0x9B, 0x6F, /* 0x40-0x43 */
+	0x00, 0x00, 0x9B, 0x70, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x8E, 0x71, 0x9B, 0x72, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x8D, 0x45, 0x9B, 0x73, 0xED, 0x8A, 0x8E, 0x9A, /* 0x54-0x57 */
+	0x91, 0xB6, 0x00, 0x00, 0x9B, 0x74, 0x9B, 0x75, /* 0x58-0x5B */
+	0x8E, 0x79, 0x8D, 0x46, 0x00, 0x00, 0x96, 0xD0, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8B, 0x47, /* 0x60-0x63 */
+	0x8C, 0xC7, 0x9B, 0x76, 0x8A, 0x77, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x9B, 0x77, 0x00, 0x00, 0x91, 0xB7, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x9B, 0x78, 0x9B, 0xA1, 0x00, 0x00, 0x9B, 0x79, /* 0x70-0x73 */
+	0x00, 0x00, 0x9B, 0x7A, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x9B, 0x7B, 0x00, 0x00, 0x9B, 0x7D, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x9B, 0x7E, 0x00, 0x00, 0x00, 0x00, 0x9B, 0x80, /* 0x80-0x83 */
+	0x00, 0x00, 0x91, 0xEE, 0x00, 0x00, 0x89, 0x46, /* 0x84-0x87 */
+	0x8E, 0xE7, 0x88, 0xC0, 0x00, 0x00, 0x91, 0x76, /* 0x88-0x8B */
+	0x8A, 0xAE, 0x8E, 0xB3, 0x00, 0x00, 0x8D, 0x47, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x93, 0x86, 0x00, 0x00, 0x8F, 0x40, /* 0x94-0x97 */
+	0x8A, 0xAF, 0x92, 0x88, 0x92, 0xE8, 0x88, 0xB6, /* 0x98-0x9B */
+	0x8B, 0x58, 0x95, 0xF3, 0x00, 0x00, 0x8E, 0xC0, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x8B, 0x71, 0x90, 0xE9, /* 0xA0-0xA3 */
+	0x8E, 0xBA, 0x97, 0x47, 0x9B, 0x81, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x8B, 0x7B, 0x00, 0x00, /* 0xAC-0xAF */
+	0x8D, 0xC9, 0x00, 0x00, 0x00, 0x00, 0x8A, 0x51, /* 0xB0-0xB3 */
+	0x89, 0x83, 0x8F, 0xAA, 0x89, 0xC6, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x9B, 0x82, 0x97, 0x65, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8F, 0x68, /* 0xBC-0xBF */
+	0xED, 0x8B, 0x00, 0x00, 0x8E, 0xE2, 0x9B, 0x83, /* 0xC0-0xC3 */
+	0x8A, 0xF1, 0x93, 0xD0, 0x96, 0xA7, 0x9B, 0x84, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x9B, 0x85, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x95, 0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x9B, 0x87, 0x00, 0x00, 0x8A, 0xA6, 0x8B, 0xF5, /* 0xD0-0xD3 */
+	0x9B, 0x86, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xED, 0x8D, 0x00, 0x00, 0x00, 0x00, 0x8A, 0xB0, /* 0xD8-0xDB */
+	0x00, 0x00, 0x90, 0x51, 0x9B, 0x8B, 0x8E, 0x40, /* 0xDC-0xDF */
+	0x00, 0x00, 0x89, 0xC7, 0x9B, 0x8A, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x9B, 0x88, 0x9B, 0x8C, 0x9B, 0x89, 0x94, 0x4A, /* 0xE4-0xE7 */
+	0x9E, 0xCB, 0x90, 0x52, 0x00, 0x00, 0x9B, 0x8D, /* 0xE8-0xEB */
+	0xED, 0x8E, 0x00, 0x00, 0x97, 0xBE, 0x00, 0x00, /* 0xEC-0xEF */
+	0x9B, 0x8E, 0x00, 0x00, 0x00, 0x00, 0x9B, 0x90, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x92, 0x9E, 0x9B, 0x8F, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x90, 0xA1, 0x00, 0x00, 0x8E, 0x9B, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0x91, 0xCE, 0x8E, 0xF5, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_5C[512] = {
+	0x00, 0x00, 0x95, 0x95, 0x90, 0xEA, 0x00, 0x00, /* 0x00-0x03 */
+	0x8E, 0xCB, 0x9B, 0x91, 0x8F, 0xAB, 0x9B, 0x92, /* 0x04-0x07 */
+	0x9B, 0x93, 0x88, 0xD1, 0x91, 0xB8, 0x90, 0x71, /* 0x08-0x0B */
+	0x00, 0x00, 0x9B, 0x94, 0x93, 0xB1, 0x8F, 0xAC, /* 0x0C-0x0F */
+	0x00, 0x00, 0x8F, 0xAD, 0x00, 0x00, 0x9B, 0x95, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x90, 0xEB, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x8F, 0xAE, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0xED, 0x8F, 0x00, 0x00, /* 0x1C-0x1F */
+	0x9B, 0x96, 0x00, 0x00, 0x9B, 0x97, 0x00, 0x00, /* 0x20-0x23 */
+	0x96, 0xDE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x9B, 0x98, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x8B, 0xC4, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x8F, 0x41, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x9B, 0x99, 0x9B, 0x9A, 0x8E, 0xDA, 0x90, 0x4B, /* 0x38-0x3B */
+	0x93, 0xF2, 0x90, 0x73, 0x94, 0xF6, 0x94, 0x41, /* 0x3C-0x3F */
+	0x8B, 0xC7, 0x9B, 0x9B, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x8B, 0x8F, 0x9B, 0x9C, 0x00, 0x00, /* 0x44-0x47 */
+	0x8B, 0xFC, 0x00, 0x00, 0x93, 0xCD, 0x89, 0xAE, /* 0x48-0x4B */
+	0x00, 0x00, 0x8E, 0x72, 0x9B, 0x9D, 0x9B, 0xA0, /* 0x4C-0x4F */
+	0x9B, 0x9F, 0x8B, 0xFB, 0x00, 0x00, 0x9B, 0x9E, /* 0x50-0x53 */
+	0x00, 0x00, 0x93, 0x57, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x91, 0xAE, 0x00, 0x00, /* 0x5C-0x5F */
+	0x93, 0x6A, 0x8E, 0xC6, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x91, 0x77, 0x97, 0x9A, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x9B, 0xA2, 0x00, 0x00, 0x9B, 0xA3, 0x93, 0xD4, /* 0x6C-0x6F */
+	0x00, 0x00, 0x8E, 0x52, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x9B, 0xA5, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x9B, 0xA6, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x9B, 0xA7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x8A, 0xF2, 0x9B, 0xA8, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x9B, 0xA9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x89, 0xAA, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0xED, 0x90, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x91, 0x5A, 0x8A, 0xE2, 0x00, 0x00, 0x9B, 0xAB, /* 0xA8-0xAB */
+	0x96, 0xA6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x91, 0xD0, 0x00, 0x00, 0x8A, 0x78, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x9B, 0xAD, 0x9B, 0xAF, /* 0xB4-0xB7 */
+	0x8A, 0xDD, 0x00, 0x00, 0xED, 0x91, 0x9B, 0xAC, /* 0xB8-0xBB */
+	0x9B, 0xAE, 0x00, 0x00, 0x9B, 0xB1, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x9B, 0xB0, 0x00, 0x00, 0x9B, 0xB2, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x9B, 0xB3, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x93, 0xBB, 0x8B, 0xAC, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x89, 0xE3, 0x9B, 0xB4, 0x9B, 0xB9, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x9B, 0xB7, 0x00, 0x00, 0x95, 0xF5, /* 0xEC-0xEF */
+	0x95, 0xF4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0xED, 0x92, 0x93, 0x87, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x9B, 0xB6, 0x8F, 0x73, /* 0xF8-0xFB */
+	0x00, 0x00, 0x9B, 0xB5, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_5D[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x90, 0x92, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9B, 0xBA, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x8D, 0xE8, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x9B, 0xC0, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x9B, 0xC1, 0x9B, 0xBB, 0x8A, 0x52, 0x9B, 0xBC, /* 0x14-0x17 */
+	0x9B, 0xC5, 0x9B, 0xC4, 0x9B, 0xC3, 0x9B, 0xBF, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9B, 0xBE, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x9B, 0xC2, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xED, 0x93, /* 0x24-0x27 */
+	0x00, 0x00, 0x95, 0xF6, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0xED, 0x96, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9B, 0xC9, /* 0x48-0x4B */
+	0x9B, 0xC6, 0x00, 0x00, 0x9B, 0xC8, 0x00, 0x00, /* 0x4C-0x4F */
+	0x97, 0x92, 0x00, 0x00, 0x9B, 0xC7, 0xED, 0x94, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x9B, 0xBD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x90, 0x93, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x9B, 0xCA, 0xED, 0x97, 0x00, 0x00, 0x8D, 0xB5, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9B, 0xCB, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x9B, 0xCC, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x9B, 0xCF, 0x00, 0x00, /* 0x80-0x83 */
+	0x9B, 0xCE, 0x00, 0x00, 0x00, 0x00, 0x9B, 0xCD, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x93, 0x88, /* 0x88-0x8B */
+	0x9B, 0xB8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x9B, 0xD5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x9B, 0xD1, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x9B, 0xD0, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x9B, 0xD2, 0x00, 0x00, 0x9B, 0xD3, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9B, 0xD6, /* 0xB4-0xB7 */
+	0xED, 0x98, 0xED, 0x99, 0x97, 0xE4, 0x00, 0x00, /* 0xB8-0xBB */
+	0x9B, 0xD7, 0x9B, 0xD4, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x9B, 0xD8, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x8A, 0xDE, 0x9B, 0xD9, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0xED, 0x9A, 0x00, 0x00, 0x9B, 0xDB, 0x9B, 0xDA, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x9B, 0xDC, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9B, 0xDD, /* 0xD8-0xDB */
+	0x00, 0x00, 0x90, 0xEC, 0x8F, 0x42, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x8F, 0x84, 0x00, 0x00, 0x91, 0x83, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x8D, 0x48, 0x8D, 0xB6, 0x8D, 0x49, /* 0xE4-0xE7 */
+	0x8B, 0x90, 0x00, 0x00, 0x00, 0x00, 0x9B, 0xDE, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x8D, 0xB7, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x8C, 0xC8, 0x9B, 0xDF, 0x96, 0xA4, /* 0xF0-0xF3 */
+	0x94, 0x62, 0x9B, 0xE0, 0x00, 0x00, 0x8D, 0x4A, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8A, 0xAA, /* 0xF8-0xFB */
+	0x00, 0x00, 0x92, 0x46, 0x8B, 0xD0, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_5E[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x8E, 0x73, 0x95, 0x7A, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x94, 0xBF, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9B, 0xE1, /* 0x08-0x0B */
+	0x8A, 0xF3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x9B, 0xE4, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x92, 0x9F, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x9B, 0xE3, 0x9B, 0xE2, 0x9B, 0xE5, /* 0x18-0x1B */
+	0x00, 0x00, 0x92, 0xE9, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x90, 0x83, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8E, 0x74, /* 0x28-0x2B */
+	0x00, 0x00, 0x90, 0xC8, 0x00, 0x00, 0x91, 0xD1, /* 0x2C-0x2F */
+	0x8B, 0x41, 0x00, 0x00, 0x00, 0x00, 0x92, 0xA0, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x9B, 0xE6, 0x9B, 0xE7, /* 0x34-0x37 */
+	0x8F, 0xED, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x96, 0x58, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x9B, 0xEA, 0x00, 0x00, 0x00, 0x00, 0x9B, 0xE9, /* 0x40-0x43 */
+	0x9B, 0xE8, 0x95, 0x9D, 0x00, 0x00, 0x9B, 0xF1, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x96, 0x79, 0x00, 0x00, 0x9B, 0xEB, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x9B, 0xED, 0x96, 0x8B, 0x00, 0x00, 0x9B, 0xEC, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9B, 0xEE, /* 0x5C-0x5F */
+	0x00, 0x00, 0x94, 0xA6, 0x9B, 0xEF, 0x95, 0xBC, /* 0x60-0x63 */
+	0x9B, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x8A, 0xB1, 0x95, 0xBD, /* 0x70-0x73 */
+	0x94, 0x4E, 0x9B, 0xF2, 0x9B, 0xF3, 0x00, 0x00, /* 0x74-0x77 */
+	0x8D, 0x4B, 0x8A, 0xB2, 0x9B, 0xF4, 0x8C, 0xB6, /* 0x78-0x7B */
+	0x97, 0x63, 0x97, 0x48, 0x8A, 0xF4, 0x9B, 0xF6, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x92, 0xA1, 0x00, 0x00, 0x8D, 0x4C, /* 0x80-0x83 */
+	0x8F, 0xAF, 0x00, 0x00, 0x00, 0x00, 0x94, 0xDD, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x8F, 0xB0, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8F, 0x98, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x92, 0xEA, 0x95, 0xF7, 0x93, 0x58, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x8D, 0x4D, 0x00, 0x00, /* 0x98-0x9B */
+	0x95, 0x7B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x9B, 0xF7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x93, 0x78, 0x8D, 0xC0, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8C, 0xC9, /* 0xA8-0xAB */
+	0x00, 0x00, 0x92, 0xEB, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x88, 0xC1, 0x8F, 0x8E, 0x8D, 0x4E, /* 0xB4-0xB7 */
+	0x97, 0x66, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x9B, 0xF8, 0x9B, 0xF9, 0x94, 0x70, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x9B, 0xFA, 0x97, 0xF5, 0x98, 0x4C, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9B, 0xFC, /* 0xCC-0xCF */
+	0x9B, 0xFB, 0x00, 0x00, 0x00, 0x00, 0x8A, 0x66, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x9C, 0x40, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x9C, 0x43, 0x9C, 0x44, /* 0xD8-0xDB */
+	0x00, 0x00, 0x9C, 0x42, 0x00, 0x00, 0x95, 0x5F, /* 0xDC-0xDF */
+	0x8F, 0xB1, 0x9C, 0x46, 0x9C, 0x45, 0x9C, 0x41, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x9C, 0x47, 0x9C, 0x48, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x9C, 0x49, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x9C, 0x4C, 0x9C, 0x4A, 0x00, 0x00, 0x9C, 0x4B, /* 0xF0-0xF3 */
+	0x9C, 0x4D, 0x00, 0x00, 0x89, 0x84, 0x92, 0xEC, /* 0xF4-0xF7 */
+	0x9C, 0x4E, 0x00, 0x00, 0x8C, 0x9A, 0x89, 0xF4, /* 0xF8-0xFB */
+	0x94, 0x55, 0x00, 0x00, 0x9C, 0x4F, 0x93, 0xF9, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_5F[512] = {
+	0x00, 0x00, 0x95, 0xD9, 0x00, 0x00, 0x9C, 0x50, /* 0x00-0x03 */
+	0x98, 0x4D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x9C, 0x51, 0x95, 0xBE, 0x9C, 0x54, /* 0x08-0x0B */
+	0x98, 0x9F, 0x98, 0xAF, 0x00, 0x00, 0x8E, 0xAE, /* 0x0C-0x0F */
+	0x93, 0xF3, 0x9C, 0x55, 0x00, 0x00, 0x8B, 0x7C, /* 0x10-0x13 */
+	0x92, 0xA2, 0x88, 0xF8, 0x9C, 0x56, 0x95, 0xA4, /* 0x14-0x17 */
+	0x8D, 0x4F, 0x00, 0x00, 0x00, 0x00, 0x92, 0x6F, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x92, 0xED, /* 0x1C-0x1F */
+	0x00, 0x00, 0xED, 0x9B, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x96, 0xED, 0x8C, 0xB7, 0x8C, 0xCA, /* 0x24-0x27 */
+	0x00, 0x00, 0x9C, 0x57, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x9C, 0x58, 0x00, 0x00, 0x9C, 0x5E, /* 0x2C-0x2F */
+	0x00, 0x00, 0x8E, 0xE3, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0xED, 0x9C, 0x92, 0xA3, 0x00, 0x00, 0x8B, 0xAD, /* 0x34-0x37 */
+	0x9C, 0x59, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x95, 0x4A, 0x00, 0x00, 0x92, 0x65, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x9C, 0x5A, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0xED, 0x4B, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x9C, 0x5B, 0x00, 0x00, 0x8B, 0xAE, 0x00, 0x00, /* 0x48-0x4B */
+	0x9C, 0x5C, 0x00, 0x00, 0x9C, 0x5D, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x9C, 0x5F, 0x00, 0x00, 0x93, 0x96, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x9C, 0x60, 0x9C, 0x61, /* 0x54-0x57 */
+	0x00, 0x00, 0x9C, 0x62, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x9C, 0x53, 0x9C, 0x52, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x9C, 0x63, 0x8C, 0x60, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x95, 0x46, 0xED, 0x9D, /* 0x64-0x67 */
+	0x00, 0x00, 0x8D, 0xCA, 0x95, 0x56, 0x92, 0xA4, /* 0x68-0x6B */
+	0x95, 0x6A, 0x9C, 0x64, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x8F, 0xB2, 0x89, 0x65, 0x00, 0x00, 0x9C, 0x65, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9C, 0x66, /* 0x74-0x77 */
+	0x00, 0x00, 0x96, 0xF0, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x94, 0xDE, 0x00, 0x00, 0x00, 0x00, 0x9C, 0x69, /* 0x7C-0x7F */
+	
+	0x89, 0x9D, 0x90, 0xAA, 0x9C, 0x68, 0x9C, 0x67, /* 0x80-0x83 */
+	0x8C, 0x61, 0x91, 0xD2, 0x00, 0x00, 0x9C, 0x6D, /* 0x84-0x87 */
+	0x9C, 0x6B, 0x00, 0x00, 0x9C, 0x6A, 0x97, 0xA5, /* 0x88-0x8B */
+	0x8C, 0xE3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x8F, 0x99, 0x9C, 0x6C, 0x93, 0x6B, 0x8F, 0x5D, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x93, 0xBE, /* 0x94-0x97 */
+	0x9C, 0x70, 0x9C, 0x6F, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x9C, 0x6E, 0x00, 0x00, /* 0x9C-0x9F */
+	0x9C, 0x71, 0x8C, 0xE4, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x9C, 0x72, 0x95, 0x9C, 0x8F, 0x7A, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x9C, 0x73, 0x94, 0xF7, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x93, 0xBF, /* 0xB0-0xB3 */
+	0x92, 0xA5, 0x00, 0x00, 0x00, 0x00, 0xED, 0x9E, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x93, 0x4F, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x9C, 0x74, 0x8B, 0x4A, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x90, 0x53, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x95, 0x4B, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x8A, 0xF5, 0x94, 0x45, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x9C, 0x75, 0x8E, 0x75, /* 0xD4-0xD7 */
+	0x96, 0x59, 0x96, 0x5A, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x89, 0x9E, 0x9C, 0x7A, 0xED, 0x9F, 0x00, 0x00, /* 0xDC-0xDF */
+	0x92, 0x89, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x9C, 0x77, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x89, 0xF5, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x9C, 0xAB, 0x9C, 0x79, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x94, 0x4F, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x9C, 0x78, 0x00, 0x00, 0x00, 0x00, 0x9C, 0x76, /* 0xF8-0xFB */
+	0x00, 0x00, 0x8D, 0x9A, 0x00, 0x00, 0x9C, 0x7C, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_60[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x9C, 0x83, 0x9C, 0x89, /* 0x0C-0x0F */
+	0x9C, 0x81, 0x00, 0x00, 0x93, 0x7B, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x9C, 0x86, 0x95, 0x7C, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x9C, 0x80, 0x00, 0x00, 0x9C, 0x85, /* 0x18-0x1B */
+	0x97, 0xE5, 0x8E, 0x76, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x91, 0xD3, 0x9C, 0x7D, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x8B, 0x7D, 0x9C, 0x88, 0x90, 0xAB, /* 0x24-0x27 */
+	0x89, 0x85, 0x9C, 0x82, 0x89, 0xF6, 0x9C, 0x87, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8B, 0xAF, /* 0x2C-0x2F */
+	0x00, 0x00, 0x9C, 0x84, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x9C, 0x8A, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x9C, 0x8C, 0x9C, 0x96, 0x9C, 0x94, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x9C, 0x91, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x9C, 0x90, 0x97, 0xF6, /* 0x48-0x4B */
+	0x00, 0x00, 0x9C, 0x92, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x8B, 0xB0, 0x00, 0x00, 0x8D, 0x50, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x8F, 0x9A, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x9C, 0x99, 0x9C, 0x8B, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0xED, 0xA0, 0x00, 0x00, 0x9C, 0x8F, /* 0x5C-0x5F */
+	0x9C, 0x7E, 0x00, 0x00, 0x89, 0xF8, 0x9C, 0x93, /* 0x60-0x63 */
+	0x9C, 0x95, 0x92, 0x70, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x8D, 0xA6, 0x89, 0xB6, 0x9C, 0x8D, 0x9C, 0x98, /* 0x68-0x6B */
+	0x9C, 0x97, 0x8B, 0xB1, 0x00, 0x00, 0x91, 0xA7, /* 0x6C-0x6F */
+	0x8A, 0x86, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x8C, 0x62, 0x00, 0x00, 0x9C, 0x8E, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x9C, 0x9A, 0x00, 0x00, 0x9C, 0x9D, /* 0x80-0x83 */
+	0x9C, 0x9F, 0xED, 0xA1, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x8E, 0xBB, 0xED, 0xA2, 0x9C, 0xA5, /* 0x88-0x8B */
+	0x92, 0xEE, 0x9C, 0x9B, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x9C, 0xA3, 0x00, 0x00, /* 0x90-0x93 */
+	0x89, 0xF7, 0x00, 0x00, 0x9C, 0xA1, 0x9C, 0xA2, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x9C, 0x9E, 0x9C, 0xA0, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8C, 0xE5, /* 0x9C-0x9F */
+	0x97, 0x49, 0x00, 0x00, 0x00, 0x00, 0x8A, 0xB3, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0x78, 0x9C, 0xA4, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x94, 0x59, 0x88, 0xAB, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x94, 0xDF, 0x9C, 0x7B, /* 0xB0-0xB3 */
+	0x9C, 0xAA, 0x9C, 0xAE, 0x96, 0xE3, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x9C, 0xA7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x93, 0x89, 0x9C, 0xAC, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x8F, 0xEE, 0x9C, 0xAD, 0x93, 0xD5, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x98, 0x66, 0x00, 0x00, 0x9C, 0xA9, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xED, 0xA4, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x9C, 0xAF, 0x00, 0x00, 0x8D, 0x9B, 0x00, 0x00, /* 0xD8-0xDB */
+	0x90, 0xC9, 0x00, 0x00, 0xED, 0xA3, 0x88, 0xD2, /* 0xDC-0xDF */
+	0x9C, 0xA8, 0x9C, 0xA6, 0x00, 0x00, 0x91, 0x79, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9C, 0x9C, /* 0xE4-0xE7 */
+	0x8E, 0x53, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x91, 0xC4, 0x9C, 0xBB, 0xED, 0xA6, 0x91, 0x7A, /* 0xF0-0xF3 */
+	0x9C, 0xB6, 0x00, 0x00, 0x9C, 0xB3, 0x9C, 0xB4, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x8E, 0xE4, 0x9C, 0xB7, 0x9C, 0xBA, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_61[512] = {
+	0x9C, 0xB5, 0x8F, 0x44, 0x00, 0x00, 0x9C, 0xB8, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x9C, 0xB2, 0x00, 0x00, /* 0x04-0x07 */
+	0x96, 0xFA, 0x96, 0xF9, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x9C, 0xBC, 0x9C, 0xBD, 0x88, 0xD3, /* 0x0C-0x0F */
+	0x00, 0x00, 0xED, 0xA7, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x9C, 0xB1, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x8B, 0xF0, 0x88, 0xA4, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8A, 0xB4, /* 0x1C-0x1F */
+	0xED, 0xA5, 0x9C, 0xB9, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9C, 0xC1, /* 0x24-0x27 */
+	0x9C, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x9C, 0xC5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xED, 0xA9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x9C, 0xC6, 0x00, 0x00, 0x00, 0x00, 0xED, 0xA8, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x9C, 0xC4, 0x9C, 0xC7, 0x9C, 0xBF, 0x9C, 0xC3, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x9C, 0xC8, 0x00, 0x00, /* 0x40-0x43 */
+	0x9C, 0xC9, 0x00, 0x00, 0x00, 0x00, 0x9C, 0xBE, /* 0x44-0x47 */
+	0x8E, 0x9C, 0x00, 0x00, 0x9C, 0xC2, 0x91, 0xD4, /* 0x48-0x4B */
+	0x8D, 0x51, 0x9C, 0xB0, 0x90, 0x54, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9C, 0xD6, /* 0x50-0x53 */
+	0x00, 0x00, 0x95, 0xE7, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x9C, 0xCC, 0x9C, 0xCD, 0x9C, 0xCE, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x9C, 0xD5, 0x00, 0x00, 0x9C, 0xD4, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x96, 0x9D, 0x8A, 0xB5, /* 0x60-0x63 */
+	0x00, 0x00, 0x9C, 0xD2, 0x00, 0x00, 0x8C, 0x64, /* 0x64-0x67 */
+	0x8A, 0x53, 0x00, 0x00, 0x00, 0x00, 0x9C, 0xCF, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x97, 0xB6, 0x9C, 0xD1, /* 0x6C-0x6F */
+	0x88, 0xD4, 0x9C, 0xD3, 0x00, 0x00, 0x9C, 0xCA, /* 0x70-0x73 */
+	0x9C, 0xD0, 0x9C, 0xD7, 0x8C, 0x63, 0x9C, 0xCB, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x97, 0x7C, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x97, 0x4A, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9C, 0xDA, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x9C, 0xDE, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x91, 0x9E, 0x00, 0x00, /* 0x8C-0x8F */
+	0x97, 0xF7, 0x9C, 0xDF, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x9C, 0xDC, 0x00, 0x00, 0x9C, 0xD9, 0x00, 0x00, /* 0x94-0x97 */
+	0xED, 0xAA, 0x9C, 0xD8, 0x9C, 0xDD, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x95, 0xAE, 0x00, 0x00, 0x00, 0x00, 0x93, 0xB2, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x8C, 0x65, 0x00, 0x00, 0x9C, 0xE0, /* 0xA8-0xAB */
+	0x9C, 0xDB, 0x00, 0x00, 0x9C, 0xE1, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x8C, 0x9B, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0xAF, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x9C, 0xE9, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x8A, 0xB6, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9C, 0xE7, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x9C, 0xE8, 0x8D, 0xA7, /* 0xC4-0xC7 */
+	0x9C, 0xE6, 0x9C, 0xE4, 0x9C, 0xE3, 0x9C, 0xEA, /* 0xC8-0xCB */
+	0x9C, 0xE2, 0x9C, 0xEC, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x89, 0xF9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9C, 0xEE, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x9C, 0xED, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x92, 0xA6, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x9C, 0xF1, 0x00, 0x00, 0x9C, 0xEF, 0x9C, 0xE5, /* 0xF4-0xF7 */
+	0x8C, 0x9C, 0x00, 0x00, 0x9C, 0xF0, 0x00, 0x00, /* 0xF8-0xFB */
+	0x9C, 0xF4, 0x9C, 0xF3, 0x9C, 0xF5, 0x9C, 0xF2, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_62[512] = {
+	0x9C, 0xF6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x9C, 0xF7, 0x9C, 0xF8, 0x95, 0xE8, 0x00, 0x00, /* 0x08-0x0B */
+	0x9C, 0xFA, 0x9C, 0xF9, 0x8F, 0x5E, 0x00, 0x00, /* 0x0C-0x0F */
+	0x90, 0xAC, 0x89, 0xE4, 0x89, 0xFA, 0xED, 0xAB, /* 0x10-0x13 */
+	0x9C, 0xFB, 0x00, 0x00, 0x88, 0xBD, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x90, 0xCA, 0x9C, 0xFC, /* 0x18-0x1B */
+	0x00, 0x00, 0xE6, 0xC1, 0x9D, 0x40, 0x8C, 0x81, /* 0x1C-0x1F */
+	0x00, 0x00, 0x9D, 0x41, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x90, 0xED, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x9D, 0x42, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x9D, 0x43, 0x8B, 0x59, /* 0x2C-0x2F */
+	0x9D, 0x44, 0x00, 0x00, 0x9D, 0x45, 0x9D, 0x46, /* 0x30-0x33 */
+	0x91, 0xD5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x8C, 0xCB, 0x00, 0x00, 0x00, 0x00, 0x96, 0xDF, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x96, 0x5B, /* 0x3C-0x3F */
+	0x8F, 0x8A, 0x9D, 0x47, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x90, 0xEE, /* 0x44-0x47 */
+	0xE7, 0xBB, 0x94, 0xE0, 0x00, 0x00, 0x8E, 0xE8, /* 0x48-0x4B */
+	0x00, 0x00, 0x8D, 0xCB, 0x9D, 0x48, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x91, 0xC5, /* 0x50-0x53 */
+	0x00, 0x00, 0x95, 0xA5, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x91, 0xEF, 0x00, 0x00, 0x00, 0x00, 0x9D, 0x4B, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x9D, 0x49, 0x00, 0x00, /* 0x5C-0x5F */
+	0x9D, 0x4C, 0x00, 0x00, 0x00, 0x00, 0x9D, 0x4A, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x9D, 0x4D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x95, 0xAF, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x88, 0xB5, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x95, 0x7D, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x94, 0xE1, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x9D, 0x4E, 0x00, 0x00, 0x9D, 0x51, 0x8F, 0xB3, /* 0x7C-0x7F */
+	
+	0x8B, 0x5A, 0x00, 0x00, 0x9D, 0x4F, 0x9D, 0x56, /* 0x80-0x83 */
+	0x8F, 0xB4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x9D, 0x50, 0x94, 0x63, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x97, 0x7D, 0x9D, 0x52, 0x9D, 0x53, /* 0x90-0x93 */
+	0x9D, 0x57, 0x93, 0x8A, 0x9D, 0x54, 0x8D, 0x52, /* 0x94-0x97 */
+	0x90, 0xDC, 0x00, 0x00, 0x00, 0x00, 0x9D, 0x65, /* 0x98-0x9B */
+	0x94, 0xB2, 0x00, 0x00, 0x91, 0xF0, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0xED, 0xAC, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x94, 0xE2, /* 0xA8-0xAB */
+	0x9D, 0xAB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x95, 0xF8, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x92, 0xEF, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x96, 0x95, 0x00, 0x00, 0x9D, 0x5A, /* 0xB8-0xBB */
+	0x89, 0x9F, 0x92, 0x8A, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x9D, 0x63, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x92, 0x53, 0x9D, 0x5D, 0x9D, 0x64, /* 0xC4-0xC7 */
+	0x9D, 0x5F, 0x9D, 0x66, 0x9D, 0x62, 0x00, 0x00, /* 0xC8-0xCB */
+	0x9D, 0x61, 0x94, 0x8F, 0x00, 0x00, 0x9D, 0x5B, /* 0xCC-0xCF */
+	0x89, 0xFB, 0x9D, 0x59, 0x8B, 0x91, 0x91, 0xF1, /* 0xD0-0xD3 */
+	0x9D, 0x55, 0x00, 0x00, 0x00, 0x00, 0x9D, 0x58, /* 0xD4-0xD7 */
+	0x8D, 0x53, 0x90, 0xD9, 0x00, 0x00, 0x8F, 0xB5, /* 0xD8-0xDB */
+	0x9D, 0x60, 0x94, 0x71, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x8B, 0x92, 0x8A, 0x67, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x8A, 0x87, 0x90, 0x40, 0x9D, 0x68, 0x9D, 0x6D, /* 0xEC-0xEF */
+	0x00, 0x00, 0x9D, 0x69, 0x00, 0x00, 0x8C, 0x9D, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x9D, 0x6E, 0x8E, 0x41, 0x8D, 0x89, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0x8F, 0x45, 0x9D, 0x5C, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_63[512] = {
+	0x00, 0x00, 0x8E, 0x9D, 0x9D, 0x6B, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8E, 0x77, /* 0x04-0x07 */
+	0x9D, 0x6C, 0x88, 0xC2, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x9D, 0x67, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x92, 0xA7, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x8B, 0x93, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8B, 0xB2, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9D, 0x6A, /* 0x24-0x27 */
+	0x88, 0xA5, 0x00, 0x00, 0x00, 0x00, 0x8D, 0xC1, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x90, 0x55, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x92, 0xF0, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x94, 0xD2, 0x9D, 0x70, 0x91, 0x7D, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x91, 0xA8, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x8E, 0x4A, 0x9D, 0x71, 0x00, 0x00, 0x9D, 0x73, /* 0x4C-0x4F */
+	0x9D, 0x6F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x95, 0xDF, 0x00, 0x00, 0x92, 0xBB, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x91, 0x7B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x95, 0xF9, /* 0x64-0x67 */
+	0x8E, 0xCC, 0x9D, 0x80, 0x00, 0x00, 0x9D, 0x7E, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x90, 0x98, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x8C, 0x9E, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x9D, 0x78, 0x8F, 0xB7, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x93, 0xE6, 0x94, 0x50, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x9D, 0x76, 0x00, 0x00, 0x00, 0x00, 0x91, 0x7C, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x8E, 0xF6, 0x9D, 0x7B, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x8F, 0xB6, 0x00, 0x00, 0x9D, 0x75, 0x9D, 0x7A, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x94, 0x72, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x9D, 0x74, 0x00, 0x00, /* 0x94-0x97 */
+	0x8C, 0x40, 0x00, 0x00, 0x00, 0x00, 0x8A, 0x7C, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9D, 0x7C, /* 0x9C-0x9F */
+	0x97, 0xA9, 0x8D, 0xCC, 0x92, 0x54, 0x9D, 0x79, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x90, 0xDA, 0x00, 0x00, 0x8D, 0x54, /* 0xA4-0xA7 */
+	0x90, 0x84, 0x89, 0x86, 0x91, 0x5B, 0x9D, 0x77, /* 0xA8-0xAB */
+	0x8B, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x8C, 0x66, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x92, 0xCD, 0x9D, 0x7D, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x91, 0x7E, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x9D, 0x81, 0x00, 0x00, /* 0xBC-0xBF */
+	0x9D, 0x83, 0x00, 0x00, 0x00, 0x00, 0x91, 0xB5, /* 0xC0-0xC3 */
+	0x9D, 0x89, 0x00, 0x00, 0x9D, 0x84, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x9D, 0x86, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x95, 0x60, /* 0xCC-0xCF */
+	0x92, 0xF1, 0x00, 0x00, 0x9D, 0x87, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x97, 0x4B, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x97, 0x67, 0x8A, 0xB7, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x88, 0xAC, 0x00, 0x00, 0x9D, 0x85, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x9D, 0x82, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x8A, 0xF6, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x89, 0x87, 0xED, 0xAD, 0x9D, 0x88, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x97, 0x68, 0x00, 0x00, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_64[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x9D, 0x8C, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x91, 0xB9, 0x00, 0x00, 0x9D, 0x93, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9D, 0x8D, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x9D, 0x8A, 0x9D, 0x91, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x9D, 0x72, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x9D, 0x8E, 0x00, 0x00, /* 0x24-0x27 */
+	0x9D, 0x92, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x94, 0xC0, 0x93, 0x8B, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x9D, 0x8B, 0x00, 0x00, 0x9D, 0x8F, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x8C, 0x67, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x8D, 0xEF, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x90, 0xDB, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x9D, 0x97, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x93, 0x45, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0xED, 0xAE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9D, 0x94, /* 0x64-0x67 */
+	0x00, 0x00, 0x96, 0x80, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9D, 0x95, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x9D, 0x96, 0x00, 0x00, /* 0x74-0x77 */
+	0x96, 0xCC, 0x00, 0x00, 0x90, 0xA0, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8C, 0x82, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x9D, 0x9D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x8E, 0x54, 0x9D, 0x9A, /* 0x90-0x93 */
+	0x00, 0x00, 0x9D, 0x99, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x94, 0x51, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0xED, 0xAF, 0x93, 0xB3, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x93, 0x50, 0x9D, 0x9B, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x9D, 0x9C, 0x00, 0x00, 0x95, 0x8F, /* 0xA8-0xAB */
+	0x00, 0x00, 0x94, 0x64, 0x8E, 0x42, 0x00, 0x00, /* 0xAC-0xAF */
+	0x90, 0xEF, 0x00, 0x00, 0x96, 0x6F, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x8A, 0x68, 0x00, 0x00, 0x9D, 0xA3, /* 0xB8-0xBB */
+	0x9D, 0x9E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x97, 0x69, 0x9D, 0xA5, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x9D, 0xA1, 0x00, 0x00, 0x9D, 0xA2, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x91, 0x80, 0xED, 0xB0, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x9D, 0xA0, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x9D, 0x5E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x9D, 0xA4, 0x00, 0x00, 0x9D, 0x9F, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x9D, 0xA9, 0x9D, 0xAA, 0x93, 0x46, 0x9D, 0xAC, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x8E, 0x43, 0x9D, 0xA7, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x8B, 0x5B, 0x00, 0x00, 0x00, 0x00, 0x9D, 0xAD, /* 0xEC-0xEF */
+	0x00, 0x00, 0x9D, 0xA6, 0x9D, 0xB1, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x9D, 0xB0, 0x00, 0x00, 0x9D, 0xAF, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x9D, 0xB2, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x9D, 0xB4, 0x8F, 0xEF, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_65[512] = {
+	0x9D, 0xB3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x9D, 0xB7, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x9D, 0xB5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x9D, 0xB6, 0x9D, 0x90, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9D, 0xB9, /* 0x20-0x23 */
+	0x9D, 0xB8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x9D, 0x98, 0x9D, 0xBA, /* 0x28-0x2B */
+	0x9D, 0xAE, 0x00, 0x00, 0x00, 0x00, 0x8E, 0x78, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x9D, 0xBB, 0x9D, 0xBC, 0x9D, 0xBE, 0x9D, 0xBD, /* 0x34-0x37 */
+	0x9D, 0xBF, 0x89, 0xFC, 0x00, 0x00, 0x8D, 0x55, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x95, 0xFA, 0x90, 0xAD, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x8C, 0xCC, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x9D, 0xC1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x9D, 0xC4, 0xED, 0xB1, 0x95, 0x71, /* 0x4C-0x4F */
+	0x00, 0x00, 0x8B, 0x7E, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x9D, 0xC3, 0x9D, 0xC2, 0x94, 0x73, /* 0x54-0x57 */
+	0x9D, 0xC5, 0x8B, 0xB3, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x9D, 0xC7, 0x9D, 0xC6, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x8A, 0xB8, 0x8E, 0x55, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x93, 0xD6, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x8C, 0x68, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x90, 0x94, 0x00, 0x00, 0x9D, 0xC8, 0x00, 0x00, /* 0x70-0x73 */
+	0x90, 0xAE, 0x93, 0x47, 0x00, 0x00, 0x95, 0x7E, /* 0x74-0x77 */
+	0x9D, 0xC9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x9D, 0xCA, 0x9D, 0xCB, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x95, 0xB6, /* 0x84-0x87 */
+	0x9B, 0x7C, 0x90, 0xC4, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x95, 0x6B, 0x00, 0x00, 0x8D, 0xD6, 0x00, 0x00, /* 0x8C-0x8F */
+	0x94, 0xE3, 0x94, 0xC1, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x93, 0x6C, /* 0x94-0x97 */
+	0x00, 0x00, 0x97, 0xBF, 0x00, 0x00, 0x9D, 0xCD, /* 0x98-0x9B */
+	0x8E, 0xCE, 0x00, 0x00, 0x00, 0x00, 0x9D, 0xCE, /* 0x9C-0x9F */
+	0x00, 0x00, 0x88, 0xB4, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x8B, 0xD2, 0x90, 0xCB, 0x00, 0x00, 0x95, 0x80, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9D, 0xCF, /* 0xA8-0xAB */
+	0x8E, 0x61, 0x92, 0x66, 0x00, 0x00, 0x8E, 0x7A, /* 0xAC-0xAF */
+	0x90, 0x56, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9D, 0xD0, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x95, 0xFB, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x89, 0x97, 0x8E, 0x7B, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x9D, 0xD3, 0x00, 0x00, 0x9D, 0xD1, /* 0xC0-0xC3 */
+	0x9D, 0xD4, 0x97, 0xB7, 0x9D, 0xD2, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x90, 0xF9, /* 0xC8-0xCB */
+	0x9D, 0xD5, 0x00, 0x00, 0x00, 0x00, 0x91, 0xB0, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x9D, 0xD6, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8A, 0xF8, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x9D, 0xD8, 0x00, 0x00, 0x9D, 0xD7, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x9D, 0xD9, 0x9D, 0xDA, 0x8A, 0xF9, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x93, 0xFA, 0x92, 0x55, 0x8B, 0x8C, /* 0xE4-0xE7 */
+	0x8E, 0x7C, 0x91, 0x81, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x8F, 0x7B, 0x88, 0xAE, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x9D, 0xDB, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0xA0, 0x9D, 0xDF, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_66[512] = {
+	0xED, 0xB2, 0x00, 0x00, 0x8D, 0x56, 0x9D, 0xDE, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x8D, 0xA9, 0x8F, 0xB8, /* 0x04-0x07 */
+	0x00, 0x00, 0xED, 0xB5, 0x9D, 0xDD, 0x00, 0x00, /* 0x08-0x0B */
+	0x8F, 0xB9, 0x00, 0x00, 0x96, 0xBE, 0x8D, 0xA8, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0xD5, /* 0x10-0x13 */
+	0x90, 0xCC, 0xED, 0xB3, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x9D, 0xE4, 0x00, 0x00, 0xED, 0xB7, 0x90, 0xAF, /* 0x1C-0x1F */
+	0x89, 0x66, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0xED, 0xB8, 0x8F, 0x74, 0x00, 0x00, 0x96, 0x86, /* 0x24-0x27 */
+	0x8D, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x8F, 0xBA, 0xED, 0xB6, 0x90, 0xA5, /* 0x2C-0x2F */
+	0x00, 0x00, 0xED, 0x47, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x9D, 0xE3, 0x9D, 0xE1, 0x9D, 0xE2, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xED, 0xB4, /* 0x38-0x3B */
+	0x92, 0x8B, 0x00, 0x00, 0x00, 0x00, 0x9E, 0x45, /* 0x3C-0x3F */
+	0x00, 0x00, 0x9D, 0xE8, 0x8E, 0x9E, 0x8D, 0x57, /* 0x40-0x43 */
+	0x9D, 0xE6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x9D, 0xE7, 0x00, 0x00, 0x90, 0x57, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9D, 0xE5, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x8E, 0x4E, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xED, 0xBA, /* 0x54-0x57 */
+	0x00, 0x00, 0xED, 0xBB, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x9D, 0xEA, 0x9D, 0xE9, 0x9D, 0xEE, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x9D, 0xEF, 0x00, 0x00, /* 0x60-0x63 */
+	0x9D, 0xEB, 0xED, 0xB9, 0x8A, 0x41, 0x9D, 0xEC, /* 0x64-0x67 */
+	0x9D, 0xED, 0x94, 0xD3, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x95, 0x81, 0x8C, 0x69, /* 0x6C-0x6F */
+	0x9D, 0xF0, 0x00, 0x00, 0x00, 0x00, 0xED, 0xBD, /* 0x70-0x73 */
+	0x90, 0xB0, 0x00, 0x00, 0x8F, 0xBB, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x92, 0x71, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x8B, 0xC5, 0x00, 0x00, 0x9D, 0xF1, /* 0x80-0x83 */
+	0x9D, 0xF5, 0x00, 0x00, 0x00, 0x00, 0x89, 0xC9, /* 0x84-0x87 */
+	0x9D, 0xF2, 0x9D, 0xF4, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x9D, 0xF3, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x8F, 0x8B, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x92, 0x67, 0x88, 0xC3, /* 0x94-0x97 */
+	0x9D, 0xF6, 0xED, 0xBE, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x9D, 0xF7, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0xED, 0xBF, 0x00, 0x00, 0x92, 0xA8, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x97, 0xEF, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8E, 0x62, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x95, 0xE9, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0xED, 0xC0, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x96, 0x5C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x9E, 0x41, 0x9D, 0xF9, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x9D, 0xFC, 0x00, 0x00, 0x9D, 0xFB, 0xED, 0xC1, /* 0xBC-0xBF */
+	0x00, 0x00, 0x9D, 0xF8, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x9E, 0x40, 0x00, 0x00, 0x00, 0x00, 0x93, 0xDC, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x9D, 0xFA, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x9E, 0x42, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x8F, 0x8C, 0x9E, 0x43, 0x00, 0x00, /* 0xD8-0xDB */
+	0x97, 0x6A, 0x94, 0x98, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x9E, 0x44, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x9E, 0x46, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x9E, 0x47, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x9E, 0x48, 0x00, 0x00, 0x8B, 0xC8, 0x89, 0x67, /* 0xF0-0xF3 */
+	0x8D, 0x58, 0x9E, 0x49, 0x00, 0x00, 0x9E, 0x4A, /* 0xF4-0xF7 */
+	0x8F, 0x91, 0x91, 0x82, 0xED, 0xC2, 0xED, 0x4A, /* 0xF8-0xFB */
+	0x99, 0xD6, 0x91, 0x5D, 0x91, 0x5C, 0x91, 0xD6, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_67[512] = {
+	0x8D, 0xC5, 0x00, 0x00, 0x00, 0x00, 0x98, 0xF0, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x8C, 0x8E, 0x97, 0x4C, 0x00, 0x00, 0x95, 0xFC, /* 0x08-0x0B */
+	0x00, 0x00, 0x95, 0x9E, 0xED, 0xC3, 0x9E, 0x4B, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x8D, 0xF1, 0x92, 0xBD, 0x9E, 0x4C, 0x98, 0x4E, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x96, 0x5D, /* 0x18-0x1B */
+	0x00, 0x00, 0x92, 0xA9, 0x9E, 0x4D, 0x8A, 0xFA, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x9E, 0x4E, 0x9E, 0x4F, /* 0x24-0x27 */
+	0x96, 0xD8, 0x00, 0x00, 0x96, 0xA2, 0x96, 0x96, /* 0x28-0x2B */
+	0x96, 0x7B, 0x8E, 0x44, 0x9E, 0x51, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x8E, 0xE9, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x96, 0x70, 0x00, 0x00, 0x9E, 0x53, 0x9E, 0x56, /* 0x34-0x37 */
+	0x9E, 0x55, 0x00, 0x00, 0x8A, 0xF7, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x8B, 0x80, 0x00, 0x00, 0x9E, 0x52, /* 0x3C-0x3F */
+	0x00, 0x00, 0x9E, 0x54, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x9E, 0x57, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x90, 0x99, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x97, 0x9B, 0x88, 0xC7, /* 0x4C-0x4F */
+	0x8D, 0xDE, 0x91, 0xBA, 0x00, 0x00, 0x8E, 0xDB, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x8F, 0xF1, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x9E, 0x5A, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x93, 0x6D, 0x00, 0x00, 0x9E, 0x58, 0x91, 0xA9, /* 0x5C-0x5F */
+	0x9E, 0x59, 0x8F, 0xF0, 0x96, 0xDB, 0x9E, 0x5B, /* 0x60-0x63 */
+	0x9E, 0x5C, 0x97, 0x88, 0xED, 0xC5, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x9E, 0x61, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x8D, 0x59, 0x00, 0x00, 0x94, 0x74, /* 0x6C-0x6F */
+	0x9E, 0x5E, 0x93, 0x8C, 0x9D, 0xDC, 0x9D, 0xE0, /* 0x70-0x73 */
+	0x00, 0x00, 0x8B, 0x6E, 0x00, 0x00, 0x94, 0x66, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x9E, 0x60, 0x00, 0x00, 0x8F, 0xBC, 0x94, 0xC2, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x9E, 0x66, 0x00, 0x00, 0x94, 0xF8, /* 0x84-0x87 */
+	0x00, 0x00, 0x9E, 0x5D, 0x00, 0x00, 0x9E, 0x63, /* 0x88-0x8B */
+	0x9E, 0x62, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x90, 0xCD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x96, 0x8D, 0x00, 0x00, 0x97, 0xD1, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x96, 0x87, 0x00, 0x00, /* 0x98-0x9B */
+	0x89, 0xCA, 0x8E, 0x7D, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x98, 0x67, 0x9E, 0x65, 0x90, 0x95, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x9E, 0x64, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x9E, 0x5F, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8C, 0xCD, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9E, 0x6B, /* 0xB0-0xB3 */
+	0x9E, 0x69, 0x00, 0x00, 0x89, 0xCB, 0x9E, 0x67, /* 0xB4-0xB7 */
+	0x9E, 0x6D, 0x9E, 0x73, 0x00, 0x00, 0xED, 0xC6, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0xED, 0xC8, 0x91, 0xC6, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x95, 0xBF, 0x00, 0x00, 0x9E, 0x75, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x95, 0x41, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x9E, 0x74, 0x94, 0x90, /* 0xCC-0xCF */
+	0x96, 0x5E, 0x8A, 0xB9, 0x00, 0x00, 0x90, 0xF5, /* 0xD0-0xD3 */
+	0x8F, 0x5F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x92, 0xD1, 0x00, 0x00, 0x97, 0x4D, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x9E, 0x70, 0x9E, 0x6F, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x9E, 0x71, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x9E, 0x6E, 0x00, 0x00, 0x00, 0x00, 0x9E, 0x76, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x9E, 0x6C, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x9E, 0x6A, 0x00, 0x00, 0x9E, 0x72, 0x9E, 0x68, /* 0xEC-0xEF */
+	0x00, 0x00, 0x92, 0x8C, 0x00, 0x00, 0x96, 0xF6, /* 0xF0-0xF3 */
+	0x8E, 0xC4, 0x8D, 0xF2, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8D, 0xB8, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0x96, 0x8F, 0x8A, 0x60, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_68[512] = {
+	0x00, 0x00, 0xED, 0xC9, 0x92, 0xCC, 0x93, 0xC8, /* 0x00-0x03 */
+	0x89, 0x68, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x90, 0xF0, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x90, 0xB2, 0x8C, 0x49, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x9E, 0x78, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x8D, 0x5A, 0x8A, 0x9C, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x9E, 0x7A, 0x8A, 0x94, 0x9E, 0x81, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x9E, 0x7D, 0x00, 0x00, /* 0x30-0x33 */
+	0x90, 0xF1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x8A, 0x6A, 0x8D, 0xAA, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x8A, 0x69, 0x8D, 0xCD, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x9E, 0x7B, 0x8C, 0x85, 0x8C, 0x6A, 0x93, 0x8D, /* 0x40-0x43 */
+	0xED, 0xCA, 0x00, 0x00, 0x9E, 0x79, 0x00, 0x00, /* 0x44-0x47 */
+	0x88, 0xC4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x9E, 0x7C, 0x9E, 0x7E, 0x00, 0x00, /* 0x4C-0x4F */
+	0x8B, 0xCB, 0x8C, 0x4B, 0xED, 0xC7, 0x8A, 0xBA, /* 0x50-0x53 */
+	0x8B, 0x6A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x9E, 0x82, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x8D, 0xF7, 0x96, 0x91, 0x00, 0x00, 0x8E, 0x56, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9E, 0x83, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x95, 0x4F, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x9E, 0x8F, 0x00, 0x00, 0x89, 0xB1, 0x9E, 0x84, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x9E, 0x95, 0x9E, 0x85, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x97, 0xC0, 0x00, 0x00, 0x9E, 0x8C, /* 0x80-0x83 */
+	0x00, 0x00, 0x94, 0x7E, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x9E, 0x94, 0x00, 0x00, 0x9E, 0x87, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0xB2, /* 0x90-0x93 */
+	0x9E, 0x89, 0x00, 0x00, 0x00, 0x00, 0x8D, 0x5B, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9E, 0x8B, /* 0x98-0x9B */
+	0x00, 0x00, 0x9E, 0x8A, 0x00, 0x00, 0x9E, 0x86, /* 0x9C-0x9F */
+	0x9E, 0x91, 0x00, 0x00, 0x8F, 0xBD, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x9A, 0xEB, 0x8C, 0xE6, /* 0xA4-0xA7 */
+	0x97, 0x9C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x9E, 0x88, 0x00, 0x00, 0x92, 0xF2, /* 0xAC-0xAF */
+	0x8A, 0x42, 0x8D, 0xAB, 0x00, 0x00, 0x9E, 0x80, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x9E, 0x90, 0x8A, 0x81, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x9E, 0x8E, 0x9E, 0x92, 0x00, 0x00, /* 0xB8-0xBB */
+	0x93, 0x8E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x8A, 0xFC, 0x00, 0x00, 0x9E, 0xB0, 0x00, 0x00, /* 0xC4-0xC7 */
+	0xED, 0x48, 0x96, 0xC7, 0x9E, 0x97, 0x8A, 0xFB, /* 0xC8-0xCB */
+	0x00, 0x00, 0x9E, 0x9E, 0x00, 0x00, 0xED, 0xCB, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x96, 0x5F, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x9E, 0x9F, 0x9E, 0xA1, 0x00, 0x00, 0x9E, 0xA5, /* 0xD4-0xD7 */
+	0x9E, 0x99, 0x00, 0x00, 0x92, 0x49, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x93, 0x8F, /* 0xDC-0xDF */
+	0x9E, 0xA9, 0x9E, 0x9C, 0x00, 0x00, 0x9E, 0xA6, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9E, 0xA0, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x90, 0x58, 0x9E, 0xAA, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x90, 0xB1, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x9E, 0xA8, 0x8A, 0xBB, 0x00, 0x00, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_69[512] = {
+	0x98, 0x6F, 0x9E, 0x96, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x9E, 0xA4, 0x88, 0xD6, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x9E, 0x98, 0x00, 0x00, 0x00, 0x00, 0x96, 0xB8, /* 0x08-0x0B */
+	0x9E, 0x9D, 0x90, 0x41, 0x92, 0xC5, 0x9E, 0x93, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x9E, 0xA3, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x90, 0x9A, 0x9E, 0xAD, 0x8A, 0x91, /* 0x18-0x1B */
+	0x8C, 0x9F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x9E, 0xAF, 0x9E, 0x9A, 0x9E, 0xAE, /* 0x20-0x23 */
+	0x00, 0x00, 0x9E, 0xA7, 0x9E, 0x9B, 0x00, 0x00, /* 0x24-0x27 */
+	0x9E, 0xAB, 0x00, 0x00, 0x9E, 0xAC, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x9E, 0xBD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x93, 0xCC, 0x00, 0x00, 0x9E, 0xA2, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x9E, 0xB9, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x9E, 0xBB, 0x00, 0x00, 0x92, 0xD6, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x97, 0x6B, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x95, 0x96, /* 0x50-0x53 */
+	0x9E, 0xB6, 0x91, 0xC8, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x9E, 0xBC, 0x91, 0x5E, 0x00, 0x00, /* 0x58-0x5B */
+	0x9E, 0xB3, 0x9E, 0xC0, 0x9E, 0xBF, 0x00, 0x00, /* 0x5C-0x5F */
+	0x93, 0xED, 0x9E, 0xBE, 0x93, 0xE8, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0xED, 0xCD, 0x00, 0x00, 0x9E, 0xC2, 0x9E, 0xB5, /* 0x68-0x6B */
+	0x00, 0x00, 0x8B, 0xC6, 0x9E, 0xB8, 0x8F, 0x7C, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x94, 0x80, /* 0x70-0x73 */
+	0x9E, 0xBA, 0x8B, 0xC9, 0x00, 0x00, 0x9E, 0xB2, /* 0x74-0x77 */
+	0x9E, 0xB4, 0x9E, 0xB1, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x98, 0x4F, 0x8A, 0x79, 0x9E, 0xB7, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x9E, 0xC1, 0x8A, 0x54, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x8D, 0xE5, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0x7C, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x9E, 0xD2, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x98, 0x50, 0x9E, 0xD5, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0xED, 0xCF, 0x00, 0x00, 0x00, 0x00, 0x90, 0x59, /* 0x98-0x9B */
+	0x9E, 0xD4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x9E, 0xD3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9E, 0xD0, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x9E, 0xC4, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x9E, 0xE1, 0x9E, 0xC3, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x9E, 0xD6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9E, 0xCE, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x9E, 0xC9, 0x9E, 0xC6, /* 0xBC-0xBF */
+	0x00, 0x00, 0x9E, 0xC7, 0x00, 0x00, 0x9E, 0xCF, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEA, 0xA0, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x9E, 0xCC, 0x8D, 0x5C, /* 0xC8-0xCB */
+	0x92, 0xC6, 0x91, 0x84, 0x9E, 0xCA, 0x00, 0x00, /* 0xCC-0xCF */
+	0x9E, 0xC5, 0x00, 0x00, 0x00, 0x00, 0x9E, 0xC8, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x97, 0x6C, 0x96, 0x8A, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x9E, 0xCD, 0x9E, 0xD7, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0xED, 0xD0, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9E, 0xDF, /* 0xE4-0xE7 */
+	0x9E, 0xD8, 0x00, 0x00, 0x00, 0x00, 0x9E, 0xE5, /* 0xE8-0xEB */
+	0x00, 0x00, 0x9E, 0xE3, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x9E, 0xDE, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x9E, 0xDD, 0x00, 0x00, 0x92, 0xCE, /* 0xF8-0xFB */
+	0x00, 0x00, 0x91, 0x85, 0x00, 0x00, 0x9E, 0xDB, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_6A[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x9E, 0xD9, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x9E, 0xE0, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x9E, 0xE6, 0x94, 0xF3, /* 0x08-0x0B */
+	0x9E, 0xEC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x9E, 0xE7, 0x9E, 0xEA, /* 0x10-0x13 */
+	0x9E, 0xE4, 0x00, 0x00, 0x00, 0x00, 0x92, 0x94, /* 0x14-0x17 */
+	0x00, 0x00, 0x95, 0x57, 0x00, 0x00, 0x9E, 0xDA, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x9E, 0xE2, 0x8F, 0xBE, /* 0x1C-0x1F */
+	0x00, 0x00, 0x96, 0xCD, 0x9E, 0xF6, 0x9E, 0xE9, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x8C, 0xA0, 0x89, 0xA1, 0x8A, 0x7E, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x9E, 0xD1, 0x00, 0x00, /* 0x2C-0x2F */
+	0xED, 0xD1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x8F, 0xBF, 0x9E, 0xEE, 0x00, 0x00, /* 0x34-0x37 */
+	0x9E, 0xF5, 0x8E, 0xF7, 0x8A, 0x92, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x92, 0x4D, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x9E, 0xEB, 0x00, 0x00, 0xED, 0xD3, 0x9E, 0xF0, /* 0x44-0x47 */
+	0x9E, 0xF4, 0x00, 0x00, 0x00, 0x00, 0x8B, 0xB4, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x8B, 0x6B, 0x9E, 0xF2, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8B, 0x40, /* 0x5C-0x5F */
+	0x00, 0x00, 0x93, 0xC9, 0x9E, 0xF1, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x9E, 0xF3, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xED, 0xD2, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x9E, 0xED, 0xED, 0xD4, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x9E, 0xEF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0xED, 0xD5, 0x8A, 0x80, /* 0x7C-0x7F */
+	
+	0x92, 0x68, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x9E, 0xFA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x9E, 0xF8, 0x8C, 0xE7, 0x00, 0x00, /* 0x8C-0x8F */
+	0x9E, 0xF7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9F, 0x40, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x9E, 0x77, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x9E, 0xF9, 0x00, 0x00, 0x9E, 0xFB, 0x9E, 0xFC, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x9F, 0x4B, 0x00, 0x00, /* 0xA8-0xAB */
+	0x9F, 0x47, 0x00, 0x00, 0x9E, 0x8D, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9F, 0x46, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x9F, 0x45, 0x00, 0x00, 0x00, 0x00, 0x9F, 0x42, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x9E, 0xE8, 0x9F, 0x44, 0x9F, 0x43, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x9F, 0x49, 0x00, 0x00, 0x98, 0x45, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x9F, 0x4C, 0x8B, 0xF9, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x9F, 0x48, 0x9F, 0x4A, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0xED, 0xD6, 0x00, 0x00, /* 0xE0-0xE3 */
+	0xED, 0xD7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x94, 0xA5, 0x00, 0x00, 0x9F, 0x4D, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x9F, 0x51, 0x9F, 0x4E, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_6B[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x97, 0x93, 0x9F, 0x4F, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x9E, 0xDC, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x9F, 0x52, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x9F, 0x53, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x89, 0x54, 0x00, 0x00, 0x9F, 0x55, /* 0x1C-0x1F */
+	0x8C, 0x87, 0x8E, 0x9F, 0x00, 0x00, 0x8B, 0xD3, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x89, 0xA2, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x97, 0x7E, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9F, 0x57, /* 0x34-0x37 */
+	0x9F, 0x56, 0x9F, 0x59, 0x8B, 0x5C, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x8B, 0xD4, 0x8A, 0xBC, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9F, 0x5C, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9F, 0x5B, /* 0x44-0x47 */
+	0x00, 0x00, 0x9F, 0x5D, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x89, 0xCC, 0x00, 0x00, 0x92, 0x56, 0x00, 0x00, /* 0x4C-0x4F */
+	0x9F, 0x5E, 0x00, 0x00, 0x00, 0x00, 0x8A, 0xBD, /* 0x50-0x53 */
+	0x9F, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x9F, 0x5F, 0x00, 0x00, 0x9F, 0x61, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9F, 0x62, /* 0x5C-0x5F */
+	0x00, 0x00, 0x9F, 0x63, 0x8E, 0x7E, 0x90, 0xB3, /* 0x60-0x63 */
+	0x8D, 0x9F, 0x00, 0x00, 0x95, 0x90, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x95, 0xE0, 0x98, 0x63, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8E, 0x95, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8D, 0xCE, /* 0x70-0x73 */
+	0x97, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x9F, 0x64, 0x9F, 0x65, 0x00, 0x00, 0x8E, 0x80, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9F, 0x66, /* 0x7C-0x7F */
+	
+	0x9F, 0x67, 0x00, 0x00, 0x00, 0x00, 0x9F, 0x69, /* 0x80-0x83 */
+	0x9F, 0x68, 0x00, 0x00, 0x96, 0x77, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x8F, 0x7D, 0x8E, 0xEA, 0x8E, 0x63, /* 0x88-0x8B */
+	0x00, 0x00, 0x9F, 0x6A, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x9F, 0x6C, 0x90, 0x42, 0x00, 0x00, /* 0x94-0x97 */
+	0x9F, 0x6B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x9F, 0x6D, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x9F, 0x6E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x9F, 0x6F, 0x9F, 0x70, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9F, 0x71, /* 0xAC-0xAF */
+	0x00, 0x00, 0x9F, 0x73, 0x9F, 0x72, 0x9F, 0x74, /* 0xB0-0xB3 */
+	0x89, 0xA3, 0x92, 0x69, 0x00, 0x00, 0x9F, 0x75, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x8E, 0x45, 0x8A, 0x6B, /* 0xB8-0xBB */
+	0x9F, 0x76, 0x00, 0x00, 0x00, 0x00, 0x93, 0x61, /* 0xBC-0xBF */
+	0x9A, 0xCA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x8B, 0x42, 0x9F, 0x77, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9F, 0x78, /* 0xC8-0xCB */
+	0x00, 0x00, 0x95, 0xEA, 0x96, 0x88, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x93, 0xC5, 0x9F, 0x79, /* 0xD0-0xD3 */
+	0x94, 0xE4, 0x00, 0x00, 0xED, 0xD8, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x94, 0xF9, 0x00, 0x00, 0x00, 0x00, 0x96, 0xD1, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9F, 0x7A, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9F, 0x7C, /* 0xE8-0xEB */
+	0x9F, 0x7B, 0x00, 0x00, 0x00, 0x00, 0x9F, 0x7E, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9F, 0x7D, /* 0xF0-0xF3 */
+};
+
+static unsigned char u2c_6C[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x9F, 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8E, 0x81, /* 0x0C-0x0F */
+	0x00, 0x00, 0x96, 0xAF, 0x00, 0x00, 0x9F, 0x82, /* 0x10-0x13 */
+	0x9F, 0x83, 0x00, 0x00, 0x00, 0x00, 0x8B, 0x43, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9F, 0x84, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9F, 0x86, /* 0x20-0x23 */
+	0x9F, 0x85, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x90, 0x85, 0x00, 0x00, 0x00, 0x00, 0x95, 0x58, /* 0x34-0x37 */
+	0x89, 0x69, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x94, 0xC3, 0xED, 0xD9, /* 0x3C-0x3F */
+	0x92, 0xF3, 0x8F, 0x60, 0x8B, 0x81, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x94, 0xC4, 0x00, 0x00, /* 0x4C-0x4F */
+	0x8E, 0xAC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x9F, 0x88, 0x00, 0x00, 0x8A, 0xBE, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0x98, 0x00, 0x00, /* 0x58-0x5B */
+	0xED, 0xDA, 0x93, 0xF0, 0x9F, 0x87, 0x8D, 0x5D, /* 0x5C-0x5F */
+	0x92, 0x72, 0x00, 0x00, 0x9F, 0x89, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x9F, 0x91, 0x00, 0x00, 0x9F, 0x8A, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xED, 0xDC, /* 0x6C-0x6F */
+	0x91, 0xBF, 0x00, 0x00, 0x8B, 0x82, 0x9F, 0x92, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x8C, 0x88, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x8B, 0x44, 0x9F, 0x90, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x9F, 0x8E, 0x9F, 0x8B, 0x97, 0x80, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0xED, 0xDB, 0x00, 0x00, /* 0x84-0x87 */
+	0x92, 0xBE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x93, 0xD7, 0x9F, 0x8C, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x9F, 0x94, 0x00, 0x00, 0x9F, 0x93, 0x8C, 0x42, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0xAB, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x8D, 0xB9, 0x9F, 0x8D, 0x9F, 0x8F, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x96, 0x76, 0x91, 0xF2, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x96, 0x97, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x9F, 0x9C, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x9F, 0x9D, 0x00, 0x00, 0x89, 0xCD, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x95, 0xA6, 0x96, 0xFB, 0x9F, 0x9F, 0x8E, 0xA1, /* 0xB8-0xBB */
+	0x8F, 0xC0, 0x9F, 0x98, 0x9F, 0x9E, 0x89, 0x88, /* 0xBC-0xBF */
+	0x00, 0x00, 0x8B, 0xB5, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x9F, 0x95, 0x9F, 0x9A, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x90, 0xF2, 0x94, 0x91, 0x00, 0x00, /* 0xC8-0xCB */
+	0x94, 0xE5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9F, 0x97, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x96, 0x40, 0x00, 0x00, 0x9F, 0x99, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x9F, 0xA2, 0xED, 0xDD, 0x9F, 0xA0, /* 0xD8-0xDB */
+	0x00, 0x00, 0x9F, 0x9B, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x96, 0x41, 0x94, 0x67, 0x8B, 0x83, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x93, 0x44, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x92, 0x8D, 0x00, 0x00, 0x9F, 0xA3, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9F, 0xA1, /* 0xEC-0xEF */
+	0x91, 0xD7, 0x9F, 0x96, 0x00, 0x00, 0x89, 0x6A, /* 0xF0-0xF3 */
+};
+
+static unsigned char u2c_6D[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0xED, 0xDE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x97, 0x6D, /* 0x08-0x0B */
+	0x9F, 0xAE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x9F, 0xAD, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x90, 0xF4, /* 0x14-0x17 */
+	0x00, 0x00, 0x9F, 0xAA, 0x00, 0x00, 0x97, 0x8C, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x93, 0xB4, 0x9F, 0xA4, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x92, 0xC3, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x89, 0x6B, 0x8D, 0x5E, 0x9F, 0xA7, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x8F, 0x46, 0x9F, 0xAC, /* 0x30-0x33 */
+	0x00, 0x00, 0x9F, 0xAB, 0x9F, 0xA6, 0x00, 0x00, /* 0x34-0x37 */
+	0x9F, 0xA9, 0x00, 0x00, 0x00, 0x00, 0x8A, 0x88, /* 0x38-0x3B */
+	0x00, 0x00, 0x9F, 0xA8, 0x94, 0x68, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x97, 0xAC, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x8F, 0xF2, 0x90, 0xF3, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x9F, 0xB4, 0x9F, 0xB2, 0x00, 0x00, /* 0x58-0x5B */
+	0x95, 0x6C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9F, 0xAF, /* 0x60-0x63 */
+	0x9F, 0xB1, 0x00, 0x00, 0x89, 0x59, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x8D, 0x5F, 0x98, 0x51, 0x00, 0x00, /* 0x68-0x6B */
+	0x8A, 0x5C, 0x00, 0x00, 0x95, 0x82, 0xED, 0xE0, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x97, 0x81, 0x00, 0x00, 0x00, 0x00, 0x8A, 0x43, /* 0x74-0x77 */
+	0x90, 0x5A, 0x9F, 0xB3, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x9F, 0xB8, 0x00, 0x00, 0xED, 0xDF, /* 0x84-0x87 */
+	0x8F, 0xC1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x97, 0x4F, 0x00, 0x00, 0x9F, 0xB5, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9F, 0xB0, /* 0x90-0x93 */
+	0x00, 0x00, 0x9F, 0xB6, 0xED, 0xE1, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x97, 0xDC, 0x00, 0x00, 0x93, 0x93, /* 0x98-0x9B */
+	0x93, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0xED, 0xE2, 0x00, 0x00, 0x00, 0x00, 0x8A, 0x55, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0x74, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x9F, 0xBC, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x9F, 0xBF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x97, 0xC1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x97, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x9F, 0xC6, 0x9F, 0xC0, 0x9F, 0xBD, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x97, 0xD2, /* 0xC8-0xCB */
+	0x9F, 0xC3, 0x00, 0x00, 0x00, 0x00, 0xED, 0xE3, /* 0xCC-0xCF */
+	0x00, 0x00, 0x8F, 0x69, 0x9F, 0xC5, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x9F, 0xCA, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x93, 0x91, 0x9F, 0xC8, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x9F, 0xC2, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x92, 0x57, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x9F, 0xC9, 0x00, 0x00, 0x9F, 0xBE, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x9F, 0xC4, 0x00, 0x00, 0x9F, 0xCB, 0x88, 0xFA, /* 0xE8-0xEB */
+	0x9F, 0xC1, 0x00, 0x00, 0x9F, 0xCC, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x90, 0x5B, 0xED, 0xE5, 0x8F, 0x7E, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x95, 0xA3, 0x00, 0x00, 0x8D, 0xAC, /* 0xF4-0xF7 */
+	0xED, 0xE4, 0x9F, 0xB9, 0x9F, 0xC7, 0x93, 0x59, /* 0xF8-0xFB */
+	0xED, 0xE6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_6E[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x90, 0xB4, 0x00, 0x00, 0x8A, 0x89, /* 0x04-0x07 */
+	0x8D, 0xCF, 0x8F, 0xC2, 0x9F, 0xBB, 0x8F, 0x61, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8C, 0x6B, /* 0x10-0x13 */
+	0x00, 0x00, 0x9F, 0xBA, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x9F, 0xD0, 0x8F, 0x8D, 0x8C, 0xB8, /* 0x18-0x1B */
+	0x00, 0x00, 0x9F, 0xDF, 0x00, 0x00, 0x9F, 0xD9, /* 0x1C-0x1F */
+	0x8B, 0x94, 0x93, 0x6E, 0x00, 0x00, 0x9F, 0xD4, /* 0x20-0x23 */
+	0x9F, 0xDD, 0x88, 0xAD, 0x89, 0x51, 0xED, 0xE9, /* 0x24-0x27 */
+	0x00, 0x00, 0x89, 0xB7, 0x00, 0x00, 0x9F, 0xD6, /* 0x28-0x2B */
+	0x91, 0xAA, 0x9F, 0xCD, 0x9F, 0xCF, 0x8D, 0x60, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x9F, 0xE0, 0xED, 0xE7, 0x9F, 0xDB, 0x00, 0x00, /* 0x38-0x3B */
+	0xED, 0xEA, 0x00, 0x00, 0x9F, 0xD3, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9F, 0xDA, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x96, 0xA9, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x9F, 0xD8, 0x9F, 0xDC, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x8C, 0xCE, 0x00, 0x00, /* 0x54-0x57 */
+	0x8F, 0xC3, 0x00, 0x00, 0x00, 0x00, 0x92, 0x58, /* 0x58-0x5B */
+	0xED, 0xE8, 0x00, 0x00, 0x00, 0x00, 0x9F, 0xD2, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x97, 0x4E, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9F, 0xD5, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x9F, 0xCE, 0x93, 0x92, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x9F, 0xD1, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x9F, 0xD7, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x98, 0x70, 0x8E, 0xBC, /* 0x7C-0x7F */
+	
+	0x96, 0x9E, 0x00, 0x00, 0x9F, 0xE1, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x94, 0xAC, 0x00, 0x00, 0x00, 0x00, 0x9F, 0xED, /* 0x8C-0x8F */
+	0x8C, 0xB9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x8F, 0x80, 0x00, 0x00, /* 0x94-0x97 */
+	0x9F, 0xE3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x97, 0xAD, 0x8D, 0x61, 0x00, 0x00, 0x9F, 0xF0, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x88, 0xEC, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x9F, 0xEE, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x9F, 0xE2, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9F, 0xE8, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x9F, 0xEA, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x97, 0x6E, 0x9F, 0xE5, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x93, 0x4D, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x9F, 0xE7, 0x00, 0x00, 0xED, 0xEB, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x9F, 0xEF, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x9F, 0xE9, 0x96, 0xC5, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x9F, 0xE4, 0x00, 0x00, 0x8E, 0xA0, /* 0xC8-0xCB */
+	0x9F, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x8A, 0x8A, 0x00, 0x00, 0x9F, 0xE6, /* 0xD0-0xD3 */
+	0x9F, 0xEB, 0x9F, 0xEC, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x91, 0xEA, 0x91, 0xD8, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x9F, 0xF4, 0x00, 0x00, 0x00, 0x00, 0x9F, 0xFA, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x9F, 0xF8, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x93, 0x48, 0x00, 0x00, 0x00, 0x00, 0xE0, 0x42, /* 0xF4-0xF7 */
+	0x9F, 0xF5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0x9F, 0xF6, 0x9F, 0xDE, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_6F[512] = {
+	0x00, 0x00, 0x8B, 0x99, 0x95, 0x59, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x8E, 0xBD, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x8D, 0x97, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x98, 0x52, /* 0x0C-0x0F */
+	0x00, 0x00, 0x9F, 0xF2, 0x00, 0x00, 0xE0, 0x41, /* 0x10-0x13 */
+	0x89, 0x89, 0x91, 0x86, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x94, 0x99, 0x00, 0x00, 0x8A, 0xBF, 0x97, 0xF8, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x96, 0x9F, /* 0x28-0x2B */
+	0x92, 0xD0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x9F, 0xF9, 0x9F, 0xFB, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x91, 0x51, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0x40, 0x9F, 0xF7, /* 0x3C-0x3F */
+	0x00, 0x00, 0x9F, 0xF1, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x8A, 0xC1, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x8C, 0x89, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0xE0, 0x4E, 0x00, 0x00, 0x00, 0x00, 0xE0, 0x49, /* 0x58-0x5B */
+	0x90, 0xF6, 0x00, 0x00, 0x00, 0x00, 0x8A, 0x83, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x8F, 0x81, 0x00, 0x00, 0xE0, 0x52, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0xE0, 0x4B, 0x92, 0xAA, 0xE0, 0x48, /* 0x6C-0x6F */
+	0x92, 0xD7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0xE0, 0x6B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0xE0, 0x45, 0x00, 0x00, 0xE0, 0x44, 0x00, 0x00, /* 0x78-0x7B */
+	0xE0, 0x4D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xE0, 0x47, 0xE0, 0x46, 0xE0, 0x4C, 0x00, 0x00, /* 0x80-0x83 */
+	0x90, 0x9F, 0x00, 0x00, 0xE0, 0x43, 0x00, 0x00, /* 0x84-0x87 */
+	0xED, 0xEC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0x4F, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0xE0, 0x50, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8A, 0xC0, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0xE0, 0x55, 0x00, 0x00, 0xE0, 0x54, /* 0xA0-0xA3 */
+	0xE0, 0x56, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0x59, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x93, 0x62, 0x00, 0x00, 0xE0, 0x53, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xED, 0xED, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xE0, 0x57, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x8C, 0x83, 0x91, 0xF7, 0xE0, 0x51, 0x94, 0x5A, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0x58, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xE0, 0x5D, 0xE0, 0x5B, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xE0, 0x5E, 0x00, 0x00, 0x00, 0x00, 0xE0, 0x61, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0x5A, /* 0xDC-0xDF */
+	0x8D, 0x8A, 0x94, 0x47, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x9F, 0xB7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x97, 0x94, /* 0xE8-0xEB */
+	0xE0, 0x5C, 0x00, 0x00, 0xE0, 0x60, 0x91, 0xF3, /* 0xEC-0xEF */
+	0x00, 0x00, 0xE0, 0x5F, 0x00, 0x00, 0xE0, 0x4A, /* 0xF0-0xF3 */
+	0x00, 0x00, 0xED, 0xEE, 0xE8, 0x89, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0x64, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0x68, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_70[512] = {
+	0x00, 0x00, 0xE0, 0x66, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0xED, 0xEF, 0x00, 0x00, 0xED, 0xF0, /* 0x04-0x07 */
+	0x00, 0x00, 0xE0, 0x62, 0x00, 0x00, 0xE0, 0x63, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0x67, /* 0x0C-0x0F */
+	0x00, 0x00, 0xE0, 0x65, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x95, 0x6D, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0xE0, 0x6D, 0x00, 0x00, 0xE0, 0x6A, 0xE0, 0x69, /* 0x18-0x1B */
+	0x00, 0x00, 0xE0, 0x6C, 0x93, 0xD2, 0xE0, 0x6E, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x92, 0x95, 0x91, 0xEB, /* 0x24-0x27 */
+	0xED, 0xF1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x90, 0xA3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xE0, 0x6F, 0x00, 0x00, 0xE0, 0x71, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0x70, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x9F, 0xF3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0xE0, 0x72, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x93, 0xE5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0x73, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x89, 0xCE, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x93, 0x94, /* 0x6C-0x6F */
+	0x8A, 0x44, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x8B, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x8E, 0xDC, 0x8D, 0xD0, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0xED, 0xF2, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x98, 0x46, 0x90, 0x86, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0x8A, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0x75, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0xE0, 0x74, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xED, 0xF3, /* 0xA8-0xAB */
+	0xE0, 0x78, 0x92, 0x59, 0xE0, 0x7B, 0xE0, 0x76, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0x7A, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xE0, 0x79, 0x93, 0x5F, 0x88, 0xD7, 0xED, 0x46, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x97, 0xF3, 0x00, 0x00, 0x00, 0x00, 0xE0, 0x7D, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x89, 0x47, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xE0, 0x80, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0xE0, 0x7E, 0x00, 0x00, 0xE0, 0x7C, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0xE0, 0x77, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x96, 0x42, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0xE0, 0x82, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_71[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0xED, 0xF5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xE0, 0x81, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xED, 0xF4, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x89, 0x8B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0xE0, 0x84, 0x95, 0xB0, 0x00, 0x00, /* 0x18-0x1B */
+	0xE0, 0x83, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x96, 0xB3, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x8F, 0xC5, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x91, 0x52, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x8F, 0xC4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xED, 0xF7, 0xED, 0xF8, /* 0x44-0x47 */
+	0x00, 0x00, 0x97, 0xF9, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0xE0, 0x8A, 0x00, 0x00, 0x90, 0xF7, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0xE0, 0x86, 0xE0, 0x8B, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x89, 0x8C, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0xED, 0xF6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0x89, 0x00, 0x00, /* 0x60-0x63 */
+	0x94, 0x81, 0xE0, 0x85, 0xE0, 0x88, 0x8F, 0xC6, /* 0x64-0x67 */
+	0x00, 0x00, 0x94, 0xCF, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0xE0, 0x8C, 0x00, 0x00, 0x8E, 0xCF, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x90, 0xF8, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0xE0, 0x8F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0xE0, 0x87, 0x00, 0x00, 0x8C, 0x46, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0x8D, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x97, 0x6F, 0xE0, 0x90, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0xEA, 0xA4, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8F, 0x6E, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xE0, 0x91, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0xE0, 0x92, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x94, 0x4D, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xE0, 0x94, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0x95, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0xED, 0xFA, 0x00, 0x00, 0x94, 0x52, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x93, 0x95, 0xE0, 0x97, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0x99, 0x00, 0x00, /* 0xCC-0xCF */
+	0x97, 0xD3, 0x00, 0x00, 0xE0, 0x96, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xE0, 0x98, 0x89, 0x8D, 0x00, 0x00, 0xE0, 0x93, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9A, 0x7A, /* 0xDC-0xDF */
+	0xE0, 0x9A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x91, 0x87, 0x8E, 0x57, 0xE0, 0x9C, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0xE0, 0x9B, 0x90, 0x43, 0x99, 0xD7, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0xE0, 0x9D, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xE0, 0x9F, 0x00, 0x00, 0xE0, 0x8E, /* 0xF8-0xFB */
+	0xE0, 0x9E, 0x00, 0x00, 0xED, 0xFB, 0xE0, 0xA0, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_72[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x94, 0x9A, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0xE0, 0xA1, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0xE0, 0xA2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xA3, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0xE0, 0xA4, 0x00, 0x00, 0x92, 0xDC, 0x00, 0x00, /* 0x28-0x2B */
+	0xE0, 0xA6, 0xE0, 0xA5, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xE0, 0xA7, 0x00, 0x00, 0xE0, 0xA8, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x8E, 0xDD, 0x95, 0x83, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x96, 0xEA, 0xE0, 0xA9, /* 0x38-0x3B */
+	0xE0, 0xAA, 0x91, 0x75, 0x8E, 0xA2, 0xE0, 0xAB, /* 0x3C-0x3F */
+	0xE0, 0xAC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0xAD, 0x95, 0xD0, /* 0x44-0x47 */
+	0x94, 0xC5, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xAE, /* 0x48-0x4B */
+	0x94, 0x76, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x92, 0xAB, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0xE0, 0xAF, 0x89, 0xE5, 0x00, 0x00, 0x8B, 0x8D, /* 0x58-0x5B */
+	0x00, 0x00, 0x96, 0xC4, 0x00, 0x00, 0x96, 0xB4, /* 0x5C-0x5F */
+	0x00, 0x00, 0x89, 0xB2, 0x98, 0x53, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x96, 0x71, /* 0x64-0x67 */
+	0x00, 0x00, 0x95, 0xA8, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x90, 0xB5, 0x00, 0x00, /* 0x70-0x73 */
+	0xE0, 0xB0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x93, 0xC1, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x8C, 0xA1, 0xE0, 0xB1, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x8D, 0xD2, 0xE0, 0xB3, 0xE0, 0xB2, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xB4, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0xB5, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0xB6, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x8B, 0x5D, 0x00, 0x00, 0xE0, 0xB7, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xB8, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x8C, 0xA2, 0x00, 0x00, 0x00, 0x00, 0x94, 0xC6, /* 0xAC-0xAF */
+	0x00, 0x00, 0xED, 0xFC, 0xE0, 0xBA, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x8F, 0xF3, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xE0, 0xB9, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0xEE, 0x40, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x8B, 0xB6, 0xE0, 0xBB, /* 0xC0-0xC3 */
+	0xE0, 0xBD, 0x00, 0x00, 0xE0, 0xBC, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0xBE, 0x00, 0x00, /* 0xCC-0xCF */
+	0x8C, 0xCF, 0x00, 0x00, 0xE0, 0xBF, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8B, 0xE7, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x91, 0x5F, 0x00, 0x00, 0x8D, 0x9D, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0xE0, 0xC1, 0xE0, 0xC2, 0xE0, 0xC0, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x8E, 0xEB, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x93, 0xC6, 0x8B, 0xB7, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xC4, /* 0xF4-0xF7 */
+	0x92, 0x4B, 0xE0, 0xC3, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x98, 0x54, 0x94, 0x82, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_73[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0xC7, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0xC9, 0xE0, 0xC6, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x96, 0xD2, /* 0x18-0x1B */
+	0xE0, 0xC8, 0xE0, 0xCA, 0x00, 0x00, 0x97, 0xC2, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0xEE, 0x41, 0xE0, 0xCE, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0xE0, 0xCD, 0x92, 0x96, 0x94, 0x4C, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x8C, 0xA3, 0xE0, 0xCC, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0xE0, 0xCB, 0x00, 0x00, 0x97, 0x50, 0x97, 0x51, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0xCF, 0x89, 0x8E, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x8D, 0x96, 0x8E, 0x82, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0xD0, 0xE0, 0xD1, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xD3, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8F, 0x62, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0xE0, 0xD5, 0x00, 0x00, 0xE0, 0xD4, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0xE0, 0xD6, 0x00, 0x00, 0x8A, 0x6C, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0xE0, 0xD8, 0x00, 0x00, 0xEE, 0x43, /* 0x74-0x77 */
+	0xE0, 0xD7, 0x00, 0x00, 0xE0, 0xDA, 0xE0, 0xD9, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x8C, 0xBA, 0x00, 0x00, 0x00, 0x00, 0x97, 0xA6, /* 0x84-0x87 */
+	0x00, 0x00, 0x8B, 0xCA, 0x00, 0x00, 0x89, 0xA4, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x8B, 0xE8, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x8A, 0xDF, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x97, 0xE6, 0xE0, 0xDC, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xDE, /* 0xB8-0xBB */
+	0x00, 0x00, 0xEE, 0x44, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0xE0, 0xDF, 0x00, 0x00, 0x89, 0xCF, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0xE0, 0xDB, 0xEE, 0x45, 0x8E, 0x58, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x92, 0xBF, 0xE0, 0xDD, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0xEE, 0x48, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0xEE, 0x46, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0xE2, 0x00, 0x00, /* 0xDC-0xDF */
+	0x8E, 0xEC, 0x00, 0x00, 0x00, 0x00, 0xEE, 0x47, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xE0, 0xE0, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x8C, 0x5D, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x94, 0xC7, 0xE0, 0xE1, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0xE0, 0xFC, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0xEE, 0x4A, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xE0, 0xE7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0x8C, 0xBB, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_74[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8B, 0x85, /* 0x00-0x03 */
+	0x00, 0x00, 0xE0, 0xE4, 0x97, 0x9D, 0xEE, 0x49, /* 0x04-0x07 */
+	0x00, 0x00, 0x97, 0xAE, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x91, 0xF4, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0xE0, 0xE6, 0xEE, 0x4B, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0xEE, 0x4D, 0xEE, 0x4C, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0xEE, 0x4E, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0xE8, 0x97, 0xD4, /* 0x30-0x33 */
+	0x8B, 0xD5, 0x94, 0xFA, 0x94, 0x69, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0xE9, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xEB, /* 0x3C-0x3F */
+	0x00, 0x00, 0xE0, 0xEE, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0xE0, 0xEA, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0xE0, 0xED, 0x8C, 0xE8, 0x89, 0x6C, /* 0x58-0x5B */
+	0xE0, 0xEF, 0x00, 0x00, 0x90, 0x90, 0xE0, 0xEC, /* 0x5C-0x5F */
+	0x97, 0xDA, 0x00, 0x00, 0xEE, 0x4F, 0xE0, 0xF2, /* 0x60-0x63 */
+	0xEA, 0xA2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0xE0, 0xF0, 0xE0, 0xF3, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xE5, /* 0x6C-0x6F */
+	0xE0, 0xF1, 0x00, 0x00, 0x00, 0x00, 0x8D, 0xBA, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0xF4, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0xF5, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x97, 0x9E, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0xEE, 0x50, 0x00, 0x00, 0xE0, 0xF6, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0xF7, 0xEE, 0x51, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0xE3, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xF8, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x8A, 0xC2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x8E, 0xA3, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0xF9, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xFA, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xE0, 0xFB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x89, 0x5A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0xE1, 0x40, 0x00, 0x00, 0x95, 0x5A, 0xE1, 0x41, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x8A, 0xA2, 0xE1, 0x42, /* 0xE4-0xE7 */
+	0x00, 0x00, 0xE1, 0x43, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0x44, 0x00, 0x00, /* 0xEC-0xEF */
+	0xE1, 0x46, 0xE1, 0x47, 0xE1, 0x45, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x95, 0x72, 0xE1, 0x49, /* 0xF4-0xF7 */
+	0xE1, 0x48, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_75[512] = {
+	0x00, 0x00, 0xEE, 0x52, 0x00, 0x00, 0xE1, 0x4B, /* 0x00-0x03 */
+	0xE1, 0x4A, 0xE1, 0x4C, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0xE1, 0x4D, 0xE1, 0x4F, 0xE1, 0x4E, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x8D, 0x99, 0x00, 0x00, 0xE1, 0x51, /* 0x10-0x13 */
+	0x00, 0x00, 0xE1, 0x50, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x8A, 0xC3, 0x00, 0x00, 0x90, 0x72, 0x00, 0x00, /* 0x18-0x1B */
+	0x93, 0x5B, 0x00, 0x00, 0xE1, 0x52, 0x90, 0xB6, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8E, 0x59, /* 0x20-0x23 */
+	0x00, 0x00, 0x89, 0x99, 0xE1, 0x53, 0x00, 0x00, /* 0x24-0x27 */
+	0x97, 0x70, 0x00, 0x00, 0x00, 0x00, 0x95, 0xE1, /* 0x28-0x2B */
+	0xE1, 0x54, 0x00, 0x00, 0x00, 0x00, 0xED, 0x8C, /* 0x2C-0x2F */
+	0x93, 0x63, 0x97, 0x52, 0x8D, 0x62, 0x90, 0x5C, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x92, 0x6A, /* 0x34-0x37 */
+	0x99, 0xB2, 0x00, 0x00, 0x92, 0xAC, 0x89, 0xE6, /* 0x38-0x3B */
+	0xE1, 0x55, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0xE1, 0x56, 0x00, 0x00, 0xE1, 0x5B, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0xE1, 0x59, 0xE1, 0x58, 0x9D, 0xC0, /* 0x48-0x4B */
+	0x8A, 0x45, 0xE1, 0x57, 0x00, 0x00, 0x88, 0xD8, /* 0x4C-0x4F */
+	0x00, 0x00, 0x94, 0xA8, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x94, 0xC8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x97, 0xAF, 0xE1, 0x5C, 0xE1, 0x5A, /* 0x58-0x5B */
+	0x92, 0x7B, 0x90, 0xA4, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x94, 0xA9, 0x00, 0x00, 0x95, 0x4C, 0x00, 0x00, /* 0x60-0x63 */
+	0xE1, 0x5E, 0x97, 0xAA, 0x8C, 0x6C, 0xE1, 0x5F, /* 0x64-0x67 */
+	0x00, 0x00, 0xE1, 0x5D, 0x94, 0xD4, 0xE1, 0x60, /* 0x68-0x6B */
+	0x00, 0x00, 0xE1, 0x61, 0x00, 0x00, 0xEE, 0x53, /* 0x6C-0x6F */
+	0x88, 0xD9, 0x00, 0x00, 0x00, 0x00, 0x8F, 0xF4, /* 0x70-0x73 */
+	0xE1, 0x66, 0x00, 0x00, 0xE1, 0x63, 0x93, 0xEB, /* 0x74-0x77 */
+	0xE1, 0x62, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8B, 0x45, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0x69, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0x64, 0xE1, 0x65, /* 0x84-0x87 */
+	0x00, 0x00, 0xE1, 0x68, 0xE1, 0x67, 0x95, 0x44, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x91, 0x61, 0x91, 0x60, /* 0x8C-0x8F */
+	0x00, 0x00, 0x8B, 0x5E, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0xE1, 0x6A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0x6B, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0xE1, 0x6C, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE1, 0x6E, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xE1, 0x6D, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x89, 0x75, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0xE1, 0x76, 0x94, 0xE6, 0xE1, 0x70, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xE1, 0x72, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xE1, 0x74, 0x90, 0x5D, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0xE1, 0x75, 0xE1, 0x73, 0x8E, 0xBE, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0x6F, 0xE1, 0x71, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x95, 0x61, 0x00, 0x00, 0x8F, 0xC7, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0x78, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0xE1, 0x77, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0x79, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x8E, 0xA4, 0x8D, 0xAD, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x93, 0x97, 0xE1, 0x7A, 0x00, 0x00, 0x92, 0xC9, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0x7C, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x97, 0x9F, 0xE1, 0x7B, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x91, 0x89, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0xE1, 0x82, 0x00, 0x00, 0xE1, 0x84, 0xE1, 0x85, /* 0xF0-0xF3 */
+	0x92, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0x83, 0x00, 0x00, /* 0xF8-0xFB */
+	0xE1, 0x80, 0x00, 0x00, 0xE1, 0x7D, 0xE1, 0x7E, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_76[512] = {
+	0x00, 0x00, 0xE1, 0x81, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xE1, 0x88, 0x00, 0x00, 0xE1, 0x86, /* 0x08-0x0B */
+	0x00, 0x00, 0xE1, 0x87, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE1, 0x89, /* 0x1C-0x1F */
+	0xE1, 0x8B, 0xE1, 0x8C, 0xE1, 0x8D, 0x00, 0x00, /* 0x20-0x23 */
+	0xE1, 0x8E, 0x00, 0x00, 0x00, 0x00, 0xE1, 0x8A, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xE1, 0x90, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0xE1, 0x8F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE1, 0x91, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x97, 0xC3, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0x94, 0xE1, 0x92, /* 0x44-0x47 */
+	0xE1, 0x93, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x8A, 0xE0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x96, 0xFC, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x95, 0xC8, 0x00, 0x00, /* 0x54-0x57 */
+	0xE1, 0x96, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0xE1, 0x95, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0xE1, 0x97, 0xE1, 0x98, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE1, 0x9C, /* 0x64-0x67 */
+	0xE1, 0x99, 0xE1, 0x9A, 0xE1, 0x9B, 0x00, 0x00, /* 0x68-0x6B */
+	0xE1, 0x9D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0xE1, 0x9E, 0x00, 0x00, 0xE1, 0x9F, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xA0, 0x00, 0x00, /* 0x74-0x77 */
+	0xE1, 0xA1, 0x00, 0x00, 0x94, 0xAD, 0x93, 0x6F, /* 0x78-0x7B */
+	0xE1, 0xA2, 0x94, 0x92, 0x95, 0x53, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xE1, 0xA3, 0x00, 0x00, 0xEE, 0x54, 0xE1, 0xA4, /* 0x80-0x83 */
+	0x93, 0x49, 0x00, 0x00, 0x8A, 0x46, 0x8D, 0x63, /* 0x84-0x87 */
+	0xE1, 0xA5, 0x00, 0x00, 0x00, 0x00, 0xE1, 0xA6, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xA7, 0x00, 0x00, /* 0x8C-0x8F */
+	0x8E, 0x48, 0x00, 0x00, 0x00, 0x00, 0xE1, 0xA9, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xA8, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0xE1, 0xAA, 0xE1, 0xAB, 0xEE, 0x57, /* 0x98-0x9B */
+	0xEE, 0x55, 0x00, 0x00, 0xEE, 0x56, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0xEE, 0x58, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x94, 0xE7, 0x00, 0x00, /* 0xAC-0xAF */
+	0xE1, 0xAC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0xE1, 0xAD, 0x00, 0x00, 0x00, 0x00, 0xEA, 0x89, /* 0xB4-0xB7 */
+	0xE1, 0xAE, 0xE1, 0xAF, 0xE1, 0xB0, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8E, 0x4D, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xB1, 0x94, 0x75, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x96, 0x7E, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x89, 0x6D, 0x00, 0x00, 0x89, 0x76, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0xE1, 0xB2, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xB4, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xB3, 0x93, 0x90, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x90, 0xB7, /* 0xD8-0xDB */
+	0x9F, 0x58, 0x00, 0x00, 0xE1, 0xB5, 0x96, 0xBF, /* 0xDC-0xDF */
+	0x00, 0x00, 0xE1, 0xB6, 0x00, 0x00, 0x8A, 0xC4, /* 0xE0-0xE3 */
+	0x94, 0xD5, 0xE1, 0xB7, 0x00, 0x00, 0xE1, 0xB8, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xB9, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x96, 0xDA, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x96, 0xD3, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x92, 0xBC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x91, 0x8A, 0x00, 0x00, 0x00, 0x00, 0xE1, 0xBB, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0x8F, 0x82, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_77[512] = {
+	0x00, 0x00, 0x8F, 0xC8, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0xE1, 0xBE, 0x00, 0x00, 0x00, 0x00, 0xE1, 0xBD, /* 0x04-0x07 */
+	0xE1, 0xBC, 0x94, 0xFB, 0x00, 0x00, 0x8A, 0xC5, /* 0x08-0x0B */
+	0x8C, 0xA7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE1, 0xC4, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xC1, 0x90, 0x5E, /* 0x1C-0x1F */
+	0x96, 0xB0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0xE1, 0xC0, 0xE1, 0xC2, 0xE1, 0xC3, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0xE1, 0xBF, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE1, 0xC5, /* 0x34-0x37 */
+	0xE1, 0xC6, 0x00, 0x00, 0x92, 0xAD, 0x00, 0x00, /* 0x38-0x3B */
+	0x8A, 0xE1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x92, 0x85, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xEE, 0x5A, 0xE1, 0xC7, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xC8, 0xE1, 0xCB, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x90, 0x87, 0x00, 0x00, 0x93, 0xC2, /* 0x60-0x63 */
+	0x00, 0x00, 0xE1, 0xCC, 0x96, 0x72, 0x00, 0x00, /* 0x64-0x67 */
+	0xE1, 0xC9, 0x00, 0x00, 0x00, 0x00, 0xE1, 0xCA, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0xE1, 0xCF, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xCE, 0xE1, 0xCD, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE1, 0xD1, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xD0, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0xE1, 0xD2, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xD4, 0x00, 0x00, /* 0x9C-0x9F */
+	0xE1, 0xD3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x95, 0xCB, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x8F, 0x75, 0x97, 0xC4, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0xE1, 0xD5, 0x00, 0x00, 0x00, 0x00, 0x93, 0xB5, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xD6, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xE1, 0xD7, 0x00, 0x00, 0xE1, 0xDB, /* 0xB8-0xBB */
+	0xE1, 0xD9, 0xE1, 0xDA, 0x00, 0x00, 0xE1, 0xD8, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE1, 0xDC, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0xE1, 0xDD, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE1, 0xDE, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xDF, 0x96, 0xB5, /* 0xD8-0xDB */
+	0xE1, 0xE0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x96, 0xEE, 0xE1, 0xE1, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x92, 0x6D, 0x00, 0x00, 0x94, 0x8A, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x8B, 0xE9, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x92, 0x5A, 0xE1, 0xE2, 0x8B, 0xB8, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x90, 0xCE, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0xE1, 0xE3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_78[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x8D, 0xBB, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0xE1, 0xE4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xE5, 0x00, 0x00, /* 0x10-0x13 */
+	0x8C, 0xA4, 0x8D, 0xD3, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0xE1, 0xE7, 0xEE, 0x5C, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x93, 0x75, 0x8D, 0xD4, 0x8B, 0x6D, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x96, 0x43, 0x00, 0x00, /* 0x30-0x33 */
+	0x94, 0x6A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x93, 0x76, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8D, 0x7B, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0xE1, 0xE9, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0xEE, 0x5D, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x8F, 0xC9, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0xEE, 0x5E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x97, 0xB0, /* 0x68-0x6B */
+	0x8D, 0x64, 0x00, 0x00, 0x00, 0x00, 0x8C, 0xA5, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x94, 0xA1, 0x00, 0x00, /* 0x70-0x73 */
+	0xE1, 0xEB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0xEE, 0x5F, 0x00, 0x00, /* 0x78-0x7B */
+	0xE1, 0xED, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x8C, 0xE9, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xEC, 0x92, 0xF4, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0xE1, 0xEF, 0x8A, 0x56, 0xE1, 0xEA, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x94, 0xE8, 0x00, 0x00, 0x89, 0x4F, /* 0x90-0x93 */
+	0x00, 0x00, 0x8D, 0xEA, 0x00, 0x00, 0x98, 0x71, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xEE, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE1, 0xF0, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x95, 0xC9, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x90, 0xD7, 0xE1, 0xF2, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE1, 0xF3, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xE1, 0xF1, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x8A, 0x6D, 0x00, 0x00, /* 0xB8-0xBB */
+	0xE1, 0xF9, 0x00, 0x00, 0xE1, 0xF8, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x8E, 0xA5, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xE1, 0xFA, 0xE1, 0xF5, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xFB, 0xE1, 0xF6, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x94, 0xD6, 0xE1, 0xF4, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xE1, 0xF7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0x41, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0x40, /* 0xE4-0xE7 */
+	0x96, 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0xE1, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x88, 0xE9, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xE2, 0x43, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0xE2, 0x42, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_79[512] = {
+	0x00, 0x00, 0x8F, 0xCA, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0x44, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x91, 0x62, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0xE2, 0x46, 0xE2, 0x45, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0xE2, 0x47, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xE6, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xE8, 0xE2, 0x49, /* 0x28-0x2B */
+	0xE2, 0x48, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xEE, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x8E, 0xA6, 0x00, 0x00, /* 0x38-0x3B */
+	0x97, 0xE7, 0x00, 0x00, 0x8E, 0xD0, 0x00, 0x00, /* 0x3C-0x3F */
+	0xE2, 0x4A, 0x8C, 0x56, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8B, 0x5F, /* 0x44-0x47 */
+	0x8B, 0x46, 0x8E, 0x83, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x97, 0x53, 0x00, 0x00, 0x00, 0x00, 0xE2, 0x50, /* 0x50-0x53 */
+	0x00, 0x00, 0xE2, 0x4F, 0x91, 0x63, 0xE2, 0x4C, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0x4E, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x8F, 0x6A, 0x90, 0x5F, 0xE2, 0x4D, /* 0x5C-0x5F */
+	0xE2, 0x4B, 0x00, 0x00, 0x94, 0x49, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x8F, 0xCB, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x95, 0x5B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x8D, 0xD5, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x93, 0x98, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0x51, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0x52, /* 0x7C-0x7F */
+	
+	0xE2, 0x68, 0x8B, 0xD6, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x98, 0x5C, 0x91, 0x54, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0x53, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x89, 0xD0, 0x92, 0xF5, 0x95, 0x9F, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0xEE, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEE, 0x66, /* 0x98-0x9B */
+	0x00, 0x00, 0xE2, 0x54, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x8B, 0x9A, 0xE2, 0x55, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0x57, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0x58, 0x00, 0x00, /* 0xAC-0xAF */
+	0x94, 0x48, 0x00, 0x00, 0x00, 0x00, 0xE2, 0x59, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xE2, 0x5A, 0xE2, 0x5B, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x8B, 0xD7, 0x89, 0xD1, 0x93, 0xC3, /* 0xBC-0xBF */
+	0x8F, 0x47, 0x8E, 0x84, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xE2, 0x5C, 0x00, 0x00, 0x8F, 0x48, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x89, 0xC8, 0x95, 0x62, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xE2, 0x5D, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x94, 0xE9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x91, 0x64, /* 0xDC-0xDF */
+	0x00, 0x00, 0xE2, 0x60, 0x00, 0x00, 0xE2, 0x61, /* 0xE0-0xE3 */
+	0x94, 0x89, 0x00, 0x00, 0x90, 0x60, 0xE2, 0x5E, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x92, 0x81, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0xE2, 0x5F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x8F, 0xCC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0xDA, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_7A[512] = {
+	0x8B, 0x48, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0xE2, 0x62, 0x00, 0x00, 0x00, 0x00, 0x92, 0xF6, /* 0x08-0x0B */
+	0x00, 0x00, 0xE2, 0x63, 0x90, 0xC5, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x96, 0xAB, 0x00, 0x00, 0x00, 0x00, 0x95, 0x42, /* 0x14-0x17 */
+	0xE2, 0x64, 0xE2, 0x65, 0x92, 0x74, 0x00, 0x00, /* 0x18-0x1B */
+	0x97, 0xC5, 0x00, 0x00, 0x00, 0x00, 0xE2, 0x67, /* 0x1C-0x1F */
+	0xE2, 0x66, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x8E, 0xED, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0xE2, 0x69, 0x88, 0xEE, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0x6C, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0x6A, /* 0x38-0x3B */
+	0x89, 0xD2, 0x8C, 0x6D, 0xE2, 0x6B, 0x8D, 0x65, /* 0x3C-0x3F */
+	0x8D, 0x92, 0x00, 0x00, 0x95, 0xE4, 0xE2, 0x6D, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x96, 0x73, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0xE2, 0x6F, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x90, 0xCF, 0x89, 0x6E, 0x89, 0xB8, /* 0x4C-0x4F */
+	0x88, 0xAA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0x6E, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0xE2, 0x70, 0xE2, 0x71, 0x8F, 0xF5, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0xE2, 0x72, 0x00, 0x00, 0x8A, 0x6E, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0xE2, 0x74, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x8C, 0x8A, 0x00, 0x00, 0x8B, 0x86, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0xE2, 0x75, 0x8B, 0xF3, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0xE2, 0x76, 0x00, 0x00, 0x90, 0xFA, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x93, 0xCB, 0x00, 0x00, 0x90, 0xDE, /* 0x80-0x83 */
+	0x8D, 0xF3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0xE2, 0x77, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x92, 0x82, 0x91, 0x8B, /* 0x90-0x93 */
+	0x00, 0x00, 0xE2, 0x79, 0xE2, 0x7B, 0xE2, 0x78, /* 0x94-0x97 */
+	0xE2, 0x7A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8C, 0x41, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0xE2, 0x7C, 0x8C, 0x45, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x8B, 0x87, 0x97, 0x71, /* 0xAC-0xAF */
+	0xE2, 0x7E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0x80, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0x4D, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0x83, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8A, 0x96, /* 0xC0-0xC3 */
+	0xE2, 0x82, 0xE2, 0x81, 0x00, 0x00, 0xE2, 0x85, /* 0xC4-0xC7 */
+	0xE2, 0x7D, 0x00, 0x00, 0xE2, 0x86, 0x97, 0xA7, /* 0xC8-0xCB */
+	0x00, 0x00, 0xE2, 0x87, 0x00, 0x00, 0xE2, 0x88, /* 0xCC-0xCF */
+	0x00, 0x00, 0xEE, 0x67, 0x9A, 0xF2, 0xE2, 0x8A, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xE2, 0x89, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xE2, 0x8B, 0xE2, 0x8C, 0x00, 0x00, /* 0xD8-0xDB */
+	0x97, 0xB3, 0xE2, 0x8D, 0x00, 0x00, 0xE8, 0xED, /* 0xDC-0xDF */
+	0x8F, 0xCD, 0xE2, 0x8E, 0xE2, 0x8F, 0x8F, 0x76, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x93, 0xB6, 0xE2, 0x90, 0xEE, 0x68, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x92, 0x47, 0xEE, 0x6A, /* 0xE8-0xEB */
+	0x00, 0x00, 0xE2, 0x91, 0x00, 0x00, 0x92, 0x5B, /* 0xEC-0xEF */
+	0xE2, 0x92, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x8B, 0xA3, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x99, 0x5E, 0x92, 0x7C, 0x8E, 0xB1, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8A, 0xC6, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_7B[512] = {
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0x93, 0x00, 0x00, /* 0x00-0x03 */
+	0xE2, 0xA0, 0x00, 0x00, 0xE2, 0x96, 0x00, 0x00, /* 0x04-0x07 */
+	0x8B, 0x88, 0x00, 0x00, 0xE2, 0x95, 0xE2, 0xA2, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0x94, /* 0x0C-0x0F */
+	0x00, 0x00, 0x8F, 0xCE, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0xE2, 0x98, 0xE2, 0x99, 0x00, 0x00, 0x93, 0x4A, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0x9A, 0x00, 0x00, /* 0x1C-0x1F */
+	0x8A, 0x7D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x90, 0x79, 0x95, 0x84, 0x00, 0x00, /* 0x24-0x27 */
+	0xE2, 0x9C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x91, 0xE6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0x97, /* 0x30-0x33 */
+	0x00, 0x00, 0xE2, 0x9B, 0xE2, 0x9D, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x8D, 0xF9, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0xE2, 0xA4, 0x95, 0x4D, 0x00, 0x00, /* 0x44-0x47 */
+	0x94, 0xA4, 0x93, 0x99, 0x00, 0x00, 0x8B, 0xD8, /* 0x48-0x4B */
+	0xE2, 0xA3, 0xE2, 0xA1, 0x00, 0x00, 0x94, 0xB3, /* 0x4C-0x4F */
+	0xE2, 0x9E, 0x92, 0x7D, 0x93, 0x9B, 0x00, 0x00, /* 0x50-0x53 */
+	0x93, 0x9A, 0x00, 0x00, 0x8D, 0xF4, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0xE2, 0xB6, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0xE2, 0xA6, 0x00, 0x00, 0xE2, 0xA8, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0xE2, 0xAB, 0x00, 0x00, 0xE2, 0xAC, 0x00, 0x00, /* 0x6C-0x6F */
+	0xE2, 0xA9, 0xE2, 0xAA, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0xE2, 0xA7, 0xE2, 0xA5, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0x9F, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x95, 0xCD, 0x89, 0xD3, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xB3, /* 0x88-0x8B */
+	0x00, 0x00, 0xE2, 0xB0, 0x00, 0x00, 0xE2, 0xB5, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0xB4, 0x00, 0x00, /* 0x90-0x93 */
+	0x94, 0x93, 0x96, 0xA5, 0x00, 0x00, 0x8E, 0x5A, /* 0x94-0x97 */
+	0xE2, 0xAE, 0xE2, 0xB7, 0xE2, 0xB2, 0x00, 0x00, /* 0x98-0x9B */
+	0xE2, 0xB1, 0xE2, 0xAD, 0xEE, 0x6B, 0xE2, 0xAF, /* 0x9C-0x9F */
+	0x00, 0x00, 0x8A, 0xC7, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x92, 0x5C, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x90, 0xFB, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x94, 0xA0, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0xE2, 0xBC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x94, 0xA2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x90, 0xDF, 0xE2, 0xB9, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x94, 0xCD, 0x00, 0x00, 0xE2, 0xBD, 0x95, 0xD1, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x92, 0x7A, 0x00, 0x00, 0xE2, 0xB8, /* 0xC8-0xCB */
+	0xE2, 0xBA, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xBB, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0xE2, 0xBE, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x8E, 0xC2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x93, 0xC4, 0xE2, 0xC3, 0xE2, 0xC2, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0xE2, 0xBF, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x98, 0x55, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xC8, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0xCC, 0xE2, 0xC9, /* 0xF4-0xF7 */
+};
+
+static unsigned char u2c_7C[512] = {
+	0xE2, 0xC5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xC6, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0xE2, 0xCB, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0xE2, 0xC0, 0x99, 0xD3, 0xE2, 0xC7, /* 0x10-0x13 */
+	0xE2, 0xC1, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xCA, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xD0, /* 0x1C-0x1F */
+	0x00, 0x00, 0x8A, 0xC8, 0x00, 0x00, 0xE2, 0xCD, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xCE, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0xCF, 0xE2, 0xD2, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xD1, /* 0x34-0x37 */
+	0x94, 0xF4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0xE2, 0xD3, 0x97, 0xFA, 0x95, 0xEB, /* 0x3C-0x3F */
+	0xE2, 0xD8, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xD5, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0xE2, 0xD4, 0x90, 0xD0, 0x00, 0x00, 0xE2, 0xD7, /* 0x4C-0x4F */
+	0xE2, 0xD9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0xE2, 0xD6, 0x00, 0x00, 0xE2, 0xDD, 0x00, 0x00, /* 0x54-0x57 */
+	0xE2, 0xDA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xDB, /* 0x5C-0x5F */
+	0xE2, 0xC4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0xE2, 0xDC, 0xE2, 0xDE, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0xE2, 0xDF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x95, 0xC4, /* 0x70-0x73 */
+	0x00, 0x00, 0xE2, 0xE0, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x96, 0xE0, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x8B, 0xCC, 0x8C, 0x48, 0xE2, 0xE1, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x95, 0xB2, 0x00, 0x00, 0x90, 0x88, /* 0x88-0x8B */
+	0x00, 0x00, 0x96, 0xAE, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0xE2, 0xE2, 0x00, 0x00, 0x97, 0xB1, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x94, 0x94, 0x00, 0x00, 0x91, 0x65, /* 0x94-0x97 */
+	0x94, 0x53, 0x00, 0x00, 0x00, 0x00, 0x8F, 0x6C, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0xBE, /* 0x9C-0x9F */
+	0x00, 0x00, 0xE2, 0xE7, 0xE2, 0xE5, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xE2, 0xE3, 0x8A, 0x9F, 0x00, 0x00, 0x8F, 0xCF, /* 0xA4-0xA7 */
+	0xE2, 0xE8, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xE6, /* 0xA8-0xAB */
+	0x00, 0x00, 0xE2, 0xE4, 0xE2, 0xEC, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0xE2, 0xEB, 0xE2, 0xEA, 0xE2, 0xE9, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xE2, 0xED, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0xE2, 0xEE, 0x90, 0xB8, 0x00, 0x00, /* 0xBC-0xBF */
+	0xE2, 0xEF, 0x00, 0x00, 0xE2, 0xF1, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xE2, 0xF0, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x8C, 0xD0, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x91, 0x57, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0xF3, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x93, 0x9C, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xE2, 0xF2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0xE2, 0xF4, 0x00, 0x00, 0x95, 0xB3, 0x91, 0x8C, /* 0xDC-0xDF */
+	0x8D, 0x66, 0x00, 0x00, 0xE2, 0xF5, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x97, 0xC6, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xF7, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0xF8, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xE2, 0xF9, 0x00, 0x00, 0xE2, 0xFA, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x8E, 0x85, 0x00, 0x00, 0xE2, 0xFB, 0x8C, 0x6E, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0x8B, 0x8A, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_7D[512] = {
+	0x8B, 0x49, 0x00, 0x00, 0xE3, 0x40, 0x00, 0x00, /* 0x00-0x03 */
+	0x96, 0xF1, 0x8D, 0x67, 0xE2, 0xFC, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0x43, 0x96, 0xE4, /* 0x08-0x0B */
+	0x00, 0x00, 0x94, 0x5B, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x95, 0x52, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x8F, 0x83, 0xE3, 0x42, 0x00, 0x00, 0x8E, 0xD1, /* 0x14-0x17 */
+	0x8D, 0x68, 0x8E, 0x86, 0x8B, 0x89, 0x95, 0xB4, /* 0x18-0x1B */
+	0xE3, 0x41, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x91, 0x66, 0x96, 0x61, 0x8D, 0xF5, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8E, 0x87, /* 0x28-0x2B */
+	0x92, 0xDB, 0x00, 0x00, 0xE3, 0x46, 0x97, 0xDD, /* 0x2C-0x2F */
+	0x8D, 0xD7, 0x00, 0x00, 0xE3, 0x47, 0x90, 0x61, /* 0x30-0x33 */
+	0x00, 0x00, 0xE3, 0x49, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x8F, 0xD0, 0x8D, 0xAE, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, 0x48, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x8F, 0x49, 0x8C, 0xBC, /* 0x40-0x43 */
+	0x91, 0x67, 0xE3, 0x44, 0xE3, 0x4A, 0x00, 0x00, /* 0x44-0x47 */
+	0xEE, 0x6D, 0x00, 0x00, 0x00, 0x00, 0xE3, 0x45, /* 0x48-0x4B */
+	0x8C, 0x6F, 0x00, 0x00, 0xE3, 0x4D, 0xE3, 0x51, /* 0x4C-0x4F */
+	0x8C, 0x8B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0x4C, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, 0x55, /* 0x58-0x5B */
+	0xEE, 0x6E, 0x00, 0x00, 0x8D, 0x69, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x97, 0x8D, 0x88, 0xBA, 0xE3, 0x52, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x8B, 0x8B, 0x00, 0x00, /* 0x64-0x67 */
+	0xE3, 0x4F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0x50, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x93, 0x9D, 0xE3, 0x4E, 0xE3, 0x4B, /* 0x70-0x73 */
+	0x00, 0x00, 0x8A, 0x47, 0x90, 0xE2, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x8C, 0xA6, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0xE3, 0x57, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0xE3, 0x54, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, 0x56, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, 0x53, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x8C, 0x70, 0x91, 0xB1, 0xE3, 0x58, /* 0x98-0x9B */
+	0x91, 0x8E, 0x00, 0x00, 0x00, 0x00, 0xE3, 0x65, /* 0x9C-0x9F */
+	0xEE, 0x70, 0x00, 0x00, 0xE3, 0x61, 0xE3, 0x5B, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, 0x5F, /* 0xA8-0xAB */
+	0x8E, 0xF8, 0x88, 0xDB, 0xE3, 0x5A, 0xE3, 0x62, /* 0xAC-0xAF */
+	0xE3, 0x66, 0x8D, 0x6A, 0x96, 0xD4, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x92, 0xD4, 0xE3, 0x5C, 0x00, 0x00, 0xEE, 0x6F, /* 0xB4-0xB7 */
+	0xE3, 0x64, 0x00, 0x00, 0xE3, 0x59, 0x92, 0x5D, /* 0xB8-0xBB */
+	0x00, 0x00, 0xE3, 0x5E, 0x88, 0xBB, 0x96, 0xC8, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, 0x5D, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x8B, 0xD9, 0x94, 0xEA, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x91, 0x8D, /* 0xCC-0xCF */
+	0x00, 0x00, 0x97, 0xCE, 0x8F, 0x8F, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xE3, 0x8E, 0xEE, 0x71, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xE3, 0x67, 0x00, 0x00, 0x90, 0xFC, 0x00, 0x00, /* 0xD8-0xDB */
+	0xE3, 0x63, 0xE3, 0x68, 0xE3, 0x6A, 0x00, 0x00, /* 0xDC-0xDF */
+	0x92, 0xF7, 0xE3, 0x6D, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0xE3, 0x69, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x95, 0xD2, 0x8A, 0xC9, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x96, 0xC9, 0x00, 0x00, 0x00, 0x00, 0x88, 0xDC, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0x6C, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x97, 0xFB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, 0x6B, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_7E[512] = {
+	0x00, 0x00, 0x89, 0x8F, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x93, 0xEA, 0xE3, 0x6E, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xE3, 0x75, 0xE3, 0x6F, 0xE3, 0x76, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0x72, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x94, 0x9B, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x8E, 0xC8, 0xE3, 0x74, /* 0x1C-0x1F */
+	0x00, 0x00, 0xE3, 0x71, 0xE3, 0x77, 0xE3, 0x70, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x8F, 0x63, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x96, 0x44, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x8F, 0x6B, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0xE3, 0x73, 0xE3, 0x80, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0xE3, 0x7B, 0x00, 0x00, 0xE3, 0x7E, /* 0x34-0x37 */
+	0x00, 0x00, 0xE3, 0x7C, 0xE3, 0x81, 0xE3, 0x7A, /* 0x38-0x3B */
+	0x00, 0x00, 0xE3, 0x60, 0x90, 0xD1, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x94, 0xC9, 0x00, 0x00, 0xE3, 0x7D, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0x78, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x91, 0x40, 0x8C, 0x71, /* 0x48-0x4B */
+	0x00, 0x00, 0x8F, 0x4A, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0xEE, 0x72, 0x00, 0x00, /* 0x50-0x53 */
+	0x90, 0x44, 0x91, 0x55, 0xE3, 0x84, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0xE3, 0x86, 0xE3, 0x87, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0xE3, 0x83, 0xE3, 0x85, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0x79, 0xE3, 0x82, /* 0x64-0x67 */
+	0x00, 0x00, 0xE3, 0x8A, 0xE3, 0x89, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x96, 0x9A, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x8C, 0x4A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0xE3, 0x88, 0x00, 0x00, 0xE3, 0x8C, /* 0x78-0x7B */
+	0xE3, 0x8B, 0xE3, 0x8F, 0x00, 0x00, 0xE3, 0x91, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x8E, 0x5B, 0xE3, 0x8D, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0xE3, 0x92, 0xE3, 0x93, 0xED, 0x40, 0x00, 0x00, /* 0x88-0x8B */
+	0xE3, 0x94, 0x00, 0x00, 0xE3, 0x9A, 0x93, 0x5A, /* 0x8C-0x8F */
+	0xE3, 0x96, 0x00, 0x00, 0xE3, 0x95, 0xE3, 0x97, /* 0x90-0x93 */
+	0xE3, 0x98, 0x00, 0x00, 0xE3, 0x99, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, 0x9B, /* 0x98-0x9B */
+	0xE3, 0x9C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+};
+
+static unsigned char u2c_7F[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x8A, 0xCA, 0x00, 0x00, /* 0x34-0x37 */
+	0xE3, 0x9D, 0x00, 0x00, 0xE3, 0x9E, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0xE3, 0x9F, 0x00, 0x00, 0xEE, 0x73, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0xE3, 0xA0, 0xE3, 0xA1, 0xE3, 0xA2, 0x00, 0x00, /* 0x4C-0x4F */
+	0xE3, 0xA3, 0xE3, 0xA4, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0xE3, 0xA6, 0xE3, 0xA5, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0xE3, 0xA7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, 0xA8, /* 0x5C-0x5F */
+	0xE3, 0xA9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, 0xAC, /* 0x64-0x67 */
+	0xE3, 0xAA, 0xE3, 0xAB, 0x8D, 0xDF, 0x8C, 0x72, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x92, 0x75, 0x00, 0x00, /* 0x6C-0x6F */
+	0x94, 0xB1, 0x00, 0x00, 0x8F, 0x90, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x94, 0x6C, 0x00, 0x00, 0x94, 0xEB, /* 0x74-0x77 */
+	0xE3, 0xAD, 0x9C, 0xEB, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0xAE, 0xE3, 0xB0, /* 0x80-0x83 */
+	0x00, 0x00, 0x97, 0x85, 0xE3, 0xAF, 0xE3, 0xB2, /* 0x84-0x87 */
+	0xE3, 0xB1, 0x00, 0x00, 0x97, 0x72, 0x00, 0x00, /* 0x88-0x8B */
+	0xE3, 0xB3, 0x00, 0x00, 0x94, 0xFC, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0xE3, 0xB4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0xB7, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0xE3, 0xB6, 0xE3, 0xB5, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0xEE, 0x74, 0x00, 0x00, 0xE3, 0xB8, /* 0xA0-0xA3 */
+	0x8C, 0x51, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x91, 0x41, 0x8B, 0x60, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0xBC, 0xE3, 0xB9, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0xBA, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0xBD, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xE3, 0xBE, 0xE3, 0xBB, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x89, 0x48, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x89, 0xA5, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xE3, 0xC0, 0xE3, 0xC1, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0xC2, 0x00, 0x00, /* 0xC8-0xCB */
+	0x97, 0x82, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x8F, 0x4B, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xE3, 0xC4, 0xE3, 0xC3, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x90, 0x89, 0xE3, 0xC5, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0xC6, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0xE3, 0xC7, 0x00, 0x00, 0x8A, 0xE3, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x8A, 0xCB, 0x00, 0x00, 0x00, 0x00, 0xE3, 0xC8, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xE3, 0xC9, 0x00, 0x00, 0x96, 0x7C, /* 0xF8-0xFB */
+	0x97, 0x83, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_80[512] = {
+	0x97, 0x73, 0x98, 0x56, 0x00, 0x00, 0x8D, 0x6C, /* 0x00-0x03 */
+	0xE3, 0xCC, 0x8E, 0xD2, 0xE3, 0xCB, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, 0xCD, /* 0x08-0x0B */
+	0x8E, 0xA7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x91, 0xCF, 0x00, 0x00, 0xE3, 0xCE, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x8D, 0x6B, 0x00, 0x00, 0x96, 0xD5, /* 0x14-0x17 */
+	0xE3, 0xCF, 0xE3, 0xD0, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0xE3, 0xD1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0xE3, 0xD2, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0xE3, 0xD3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8E, 0xA8, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x96, 0xEB, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, 0xD5, /* 0x38-0x3B */
+	0x00, 0x00, 0x92, 0x5E, 0x00, 0x00, 0xE3, 0xD4, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0xD7, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0xD6, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0xD8, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x90, 0xB9, 0x00, 0x00, /* 0x54-0x57 */
+	0xE3, 0xD9, 0x00, 0x00, 0xE3, 0xDA, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x95, 0xB7, 0xE3, 0xDB, /* 0x5C-0x5F */
+	0x00, 0x00, 0x91, 0x8F, 0xE3, 0xDC, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0xE3, 0xDD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x97, 0xFC, /* 0x6C-0x6F */
+	0xE3, 0xE0, 0x00, 0x00, 0xE3, 0xDF, 0xE3, 0xDE, /* 0x70-0x73 */
+	0x92, 0xAE, 0x00, 0x00, 0xE3, 0xE1, 0x90, 0x45, /* 0x74-0x77 */
+	0x00, 0x00, 0xE3, 0xE2, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0xE3, 0xE3, 0x98, 0x57, 0xE3, 0xE4, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0xE3, 0xE5, 0xE3, 0xE7, 0xE3, 0xE6, 0x94, 0xA3, /* 0x84-0x87 */
+	0x00, 0x00, 0x93, 0xF7, 0x00, 0x00, 0x98, 0x5D, /* 0x88-0x8B */
+	0x94, 0xA7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, 0xE9, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x8F, 0xD1, 0x00, 0x00, /* 0x94-0x97 */
+	0x95, 0x49, 0x00, 0x00, 0xE3, 0xEA, 0xE3, 0xE8, /* 0x98-0x9B */
+	0x00, 0x00, 0x8A, 0xCC, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x8C, 0xD2, 0x8E, 0x88, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x94, 0xEC, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x8C, 0xA8, 0x96, 0x62, 0x00, 0x00, /* 0xA8-0xAB */
+	0xE3, 0xED, 0xE3, 0xEB, 0x00, 0x00, 0x8D, 0x6D, /* 0xAC-0xAF */
+	0x00, 0x00, 0x8D, 0x6E, 0x88, 0xE7, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x8D, 0xE6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x94, 0x78, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0xDD, /* 0xC0-0xC3 */
+	0xE3, 0xF2, 0x00, 0x00, 0x92, 0x5F, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x94, 0x77, 0x00, 0x00, 0x91, 0xD9, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0xF4, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xE3, 0xF0, 0xE3, 0xF3, 0xE3, 0xEE, /* 0xD8-0xDB */
+	0x00, 0x00, 0xE3, 0xF1, 0x96, 0x45, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x8C, 0xD3, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x88, 0xFB, 0xE3, 0xEF, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, 0xF6, /* 0xEC-0xEF */
+	0x00, 0x00, 0xE3, 0xF7, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x93, 0xB7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x8B, 0xB9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0xE4, 0x45, 0x94, 0x5C, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_81[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x8E, 0x89, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x8B, 0xBA, 0x90, 0xC6, 0x98, 0x65, /* 0x04-0x07 */
+	0x96, 0xAC, 0xE3, 0xF5, 0x90, 0xD2, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x8B, 0x72, 0xE3, 0xF8, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, 0xFA, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0xE3, 0xF9, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, 0xFB, /* 0x2C-0x2F */
+	0x00, 0x00, 0x92, 0x45, 0x00, 0x00, 0x94, 0x5D, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x92, 0xAF, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0x42, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0x41, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, 0xFC, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x90, 0x74, 0x00, 0x00, /* 0x4C-0x4F */
+	0x95, 0x85, 0xE4, 0x44, 0x00, 0x00, 0xE4, 0x43, /* 0x50-0x53 */
+	0x8D, 0x6F, 0x98, 0x72, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0x54, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0xE4, 0x48, 0xE4, 0x49, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8E, 0xEE, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0x47, 0x00, 0x00, /* 0x6C-0x6F */
+	0x8D, 0x98, 0xE4, 0x46, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0xE4, 0x4A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x92, 0xB0, 0x95, 0xA0, 0x91, 0x42, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x91, 0xDA, /* 0x7C-0x7F */
+	
+	0xE4, 0x4E, 0x00, 0x00, 0xE4, 0x4F, 0xE4, 0x4B, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0xE4, 0x4C, 0x00, 0x00, 0xE4, 0x4D, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8D, 0x70, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0x55, /* 0x90-0x93 */
+	0x00, 0x00, 0xE4, 0x51, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x95, 0x86, 0x00, 0x00, /* 0x98-0x9B */
+	0x96, 0x8C, 0x95, 0x47, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0xE4, 0x50, 0x00, 0x00, 0x00, 0x00, 0xE4, 0x53, /* 0xA0-0xA3 */
+	0xE4, 0x52, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x96, 0x63, 0xE4, 0x56, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0xE4, 0x57, 0x00, 0x00, 0x00, 0x00, 0x91, 0x56, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xE4, 0x58, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xE4, 0x5A, 0x00, 0x00, 0xE4, 0x5E, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0xE4, 0x5B, 0xE4, 0x59, 0x94, 0x5E, /* 0xBC-0xBF */
+	0xE4, 0x5C, 0x00, 0x00, 0xE4, 0x5D, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0xB0, 0x00, 0x00, /* 0xC4-0xC7 */
+	0xE4, 0x64, 0xE4, 0x5F, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0xE4, 0x60, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0xE4, 0x61, 0x00, 0x00, 0x91, 0x9F, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xE4, 0x63, 0xE4, 0x62, 0xE4, 0x65, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0x66, /* 0xDC-0xDF */
+	0xE4, 0x67, 0x00, 0x00, 0x00, 0x00, 0x90, 0x62, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x89, 0xE7, 0x00, 0x00, 0xE4, 0x68, /* 0xE4-0xE7 */
+	0x97, 0xD5, 0x00, 0x00, 0x8E, 0xA9, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x8F, 0x4C, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8E, 0x8A, /* 0xF0-0xF3 */
+	0x92, 0x76, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0x69, 0xE4, 0x6A, /* 0xF8-0xFB */
+	0x89, 0x50, 0x00, 0x00, 0xE4, 0x6B, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_82[512] = {
+	0x00, 0x00, 0xE4, 0x6C, 0xE4, 0x6D, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0xE4, 0x6E, 0x00, 0x00, 0xE4, 0x6F, /* 0x04-0x07 */
+	0x8B, 0xBB, 0x9D, 0xA8, 0xE4, 0x70, 0x00, 0x00, /* 0x08-0x0B */
+	0x90, 0xE3, 0xE4, 0x71, 0x8E, 0xC9, 0x00, 0x00, /* 0x0C-0x0F */
+	0xE4, 0x72, 0x00, 0x00, 0x98, 0xAE, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0x73, 0x95, 0xDC, /* 0x14-0x17 */
+	0x8A, 0xDA, 0x00, 0x00, 0x00, 0x00, 0x91, 0x43, /* 0x18-0x1B */
+	0x8F, 0x77, 0x00, 0x00, 0x95, 0x91, 0x8F, 0x4D, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0xE4, 0x74, 0x8D, 0x71, 0xE4, 0x75, /* 0x28-0x2B */
+	0x94, 0xCA, 0x00, 0x00, 0xE4, 0x84, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0x77, /* 0x30-0x33 */
+	0x00, 0x00, 0x91, 0xC7, 0x94, 0x95, 0x8C, 0xBD, /* 0x34-0x37 */
+	0xE4, 0x76, 0x91, 0x44, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0xE4, 0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x92, 0xF8, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0xE4, 0x7A, 0xE4, 0x79, 0xE4, 0x7C, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0xE4, 0x7B, 0x00, 0x00, 0xE4, 0x7D, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0x80, 0x00, 0x00, /* 0x60-0x63 */
+	0xE4, 0x7E, 0x00, 0x00, 0x8A, 0xCD, 0x00, 0x00, /* 0x64-0x67 */
+	0xE4, 0x81, 0x00, 0x00, 0xE4, 0x82, 0xE4, 0x83, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x8D, 0xAF, 0x97, 0xC7, /* 0x6C-0x6F */
+	0x00, 0x00, 0xE4, 0x85, 0x90, 0x46, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0x90, 0xE4, 0x86, /* 0x74-0x77 */
+	0xE4, 0x87, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0x88, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0xF0, /* 0x88-0x8B */
+	0x00, 0x00, 0xE4, 0x89, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0x8A, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x95, 0x87, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x8E, 0xC5, 0x00, 0x00, 0xE4, 0x8C, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x8A, 0x48, 0x88, 0xB0, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0x8B, /* 0xA8-0xAB */
+	0xE4, 0x8E, 0x94, 0x6D, 0x00, 0x00, 0x90, 0x63, /* 0xAC-0xAF */
+	0x00, 0x00, 0x89, 0xD4, 0x00, 0x00, 0x96, 0x46, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x8C, 0x7C, 0x8B, 0xDA, 0x00, 0x00, 0xE4, 0x8D, /* 0xB8-0xBB */
+	0x00, 0x00, 0x89, 0xE8, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x8A, 0xA1, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x89, 0x91, 0xE4, 0x92, 0x97, 0xE8, /* 0xD0-0xD3 */
+	0x91, 0xDB, 0x00, 0x00, 0x00, 0x00, 0x95, 0x63, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xE4, 0x9E, 0x00, 0x00, 0x89, 0xD5, /* 0xD8-0xDB */
+	0xE4, 0x9C, 0x00, 0x00, 0xE4, 0x9A, 0xE4, 0x91, /* 0xDC-0xDF */
+	0x00, 0x00, 0xE4, 0x8F, 0x00, 0x00, 0xE4, 0x90, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x8E, 0xE1, 0x8B, 0xEA, 0x92, 0x97, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x93, 0xCF, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x89, 0x70, 0x00, 0x00, 0xE4, 0x94, /* 0xF0-0xF3 */
+	0xE4, 0x93, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xE4, 0x99, 0xE4, 0x95, 0xE4, 0x98, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_83[512] = {
+	0x00, 0x00, 0xEE, 0x76, 0x96, 0xCE, 0xE4, 0x97, /* 0x00-0x03 */
+	0x89, 0xD6, 0x8A, 0x9D, 0xE4, 0x9B, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xE4, 0x9D, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x8C, 0x73, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0xA1, 0xE4, 0xAA, /* 0x14-0x17 */
+	0xE4, 0xAB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x88, 0xA9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xB2, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x88, 0xEF, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xA9, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xA8, /* 0x2C-0x2F */
+	0x00, 0x00, 0xE4, 0xA3, 0xE4, 0xA2, 0x00, 0x00, /* 0x30-0x33 */
+	0xE4, 0xA0, 0xE4, 0x9F, 0x92, 0x83, 0x00, 0x00, /* 0x34-0x37 */
+	0x91, 0xF9, 0xE4, 0xA5, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0xE4, 0xA4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0xE4, 0xA7, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x91, 0x90, 0x8C, 0x74, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x89, 0x60, /* 0x4C-0x4F */
+	0xE4, 0xA6, 0x00, 0x00, 0x8D, 0x72, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x91, 0x91, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0xEE, 0x77, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xB8, /* 0x70-0x73 */
+	0x00, 0x00, 0xE4, 0xB9, 0x00, 0x00, 0x89, 0xD7, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x89, 0xAC, /* 0x78-0x7B */
+	0xE4, 0xB6, 0x00, 0x00, 0x00, 0x00, 0xEE, 0x78, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0xE4, 0xAC, 0x00, 0x00, 0xE4, 0xB4, /* 0x84-0x87 */
+	0x00, 0x00, 0xE4, 0xBB, 0xE4, 0xB5, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0xB3, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0x96, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0xB1, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0xAD, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x8A, 0xCE, 0xE4, 0xAF, /* 0x9C-0x9F */
+	0xE4, 0xBA, 0x00, 0x00, 0xE4, 0xB0, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xE4, 0xBC, 0x00, 0x00, 0xE4, 0xAE, 0x94, 0x9C, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x97, 0x89, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xE4, 0xB7, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0xE4, 0xCD, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0xE4, 0xC5, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x90, 0x9B, 0x00, 0x00, 0xEE, 0x79, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x8B, 0x65, 0x00, 0x00, /* 0xC8-0xCB */
+	0x8B, 0xDB, 0x00, 0x00, 0xE4, 0xC0, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x89, 0xD9, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x8F, 0xD2, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xE4, 0xC3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x8D, 0xD8, 0x00, 0x00, 0x00, 0x00, 0x93, 0x70, /* 0xDC-0xDF */
+	0xE4, 0xC8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x95, 0xEC, 0x00, 0x00, 0xE4, 0xBF, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x89, 0xD8, /* 0xEC-0xEF */
+	0x8C, 0xD4, 0x95, 0x48, 0xE4, 0xC9, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xE4, 0xBD, 0x00, 0x00, 0xEE, 0x7A, 0xE4, 0xC6, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xD0, /* 0xF8-0xFB */
+	0x00, 0x00, 0xE4, 0xC1, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_84[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xC2, /* 0x00-0x03 */
+	0x93, 0xB8, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xC7, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xC4, /* 0x08-0x0B */
+	0x96, 0x47, 0xE4, 0xCA, 0x88, 0xDE, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xBE, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0xE4, 0xCC, 0x00, 0x00, 0xE4, 0xCB, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x94, 0x8B, 0xE4, 0xD2, 0x00, 0x00, /* 0x28-0x2B */
+	0xE4, 0xDD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x8A, 0x9E, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0xE4, 0xE0, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0xE4, 0xCE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0xE4, 0xD3, 0x97, 0x8E, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0xDC, 0x00, 0x00, /* 0x44-0x47 */
+	0xEE, 0x7B, 0x97, 0x74, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x97, 0xA8, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x92, 0x98, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8A, 0x8B, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x95, 0x92, 0xE4, 0xE2, 0x93, 0x9F, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x88, 0xAF, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0xE4, 0xDB, 0x00, 0x00, 0xE4, 0xD7, /* 0x68-0x6B */
+	0x91, 0x92, 0xE4, 0xD1, 0xE4, 0xD9, 0xE4, 0xDE, /* 0x6C-0x6F */
+	0x00, 0x00, 0x94, 0x4B, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x88, 0xA8, 0x00, 0x00, 0xE4, 0xD6, /* 0x74-0x77 */
+	0x00, 0x00, 0xE4, 0xDF, 0x95, 0x98, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0xDA, 0x00, 0x00, /* 0x80-0x83 */
+	0xE4, 0xD5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8F, 0xD3, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x8F, 0x4E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x8E, 0xAA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x96, 0xD6, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x95, 0x66, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xE5, /* 0x9C-0x9F */
+	0x00, 0x00, 0xE4, 0xEE, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0xE4, 0xD8, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x8A, 0x97, 0x00, 0x00, /* 0xB0-0xB3 */
+	0xEE, 0x7C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x8F, 0xF6, 0xE4, 0xE3, 0x00, 0x00, 0xE4, 0xE8, /* 0xB8-0xBB */
+	0x91, 0x93, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xE4, /* 0xBC-0xBF */
+	0x00, 0x00, 0xE4, 0xEB, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x92, 0x7E, 0x00, 0x00, 0xE4, 0xEC, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x97, 0x75, 0xE4, 0xE1, 0x8A, 0x57, /* 0xC8-0xCB */
+	0x00, 0x00, 0xE4, 0xE7, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0xE4, 0xEA, 0x96, 0xAA, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0xED, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xE4, 0xE6, 0xE4, 0xE9, 0x00, 0x00, /* 0xD8-0xDB */
+	0xED, 0x44, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x96, 0x48, 0x00, 0x00, 0x98, 0x40, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xE4, 0xF1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0xE4, 0xF8, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xF0, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_85[512] = {
+	0x8E, 0xC1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0xCF, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x95, 0xCC, 0x00, 0x00, 0x96, 0xA0, /* 0x10-0x13 */
+	0xE4, 0xF7, 0xE4, 0xF6, 0x00, 0x00, 0xE4, 0xF2, /* 0x14-0x17 */
+	0xE4, 0xF3, 0x00, 0x00, 0x89, 0x55, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xF5, /* 0x1C-0x1F */
+	0x00, 0x00, 0xE4, 0xEF, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x92, 0xD3, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0xE4, 0xF4, 0x88, 0xFC, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x91, 0xA0, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x95, 0xC1, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0xE4, 0xF9, 0xE5, 0x40, 0x00, 0x00, 0x94, 0xD7, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0xE4, 0xFC, 0x8F, 0xD4, 0x8E, 0xC7, 0xE5, 0x42, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x8B, 0xBC, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEE, 0x7D, /* 0x50-0x53 */
+	0x00, 0x00, 0xE5, 0x43, 0x00, 0x00, 0x95, 0x99, /* 0x54-0x57 */
+	0xE4, 0xFB, 0xEE, 0x7E, 0xE4, 0xD4, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xFA, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x98, 0x6E, 0x93, 0xA0, 0x95, 0x93, 0xEE, 0x80, /* 0x68-0x6B */
+	0x00, 0x00, 0xE5, 0x4A, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE5, 0x50, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0x51, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xE5, 0x44, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x94, 0x96, 0x00, 0x00, 0x00, 0x00, 0xE5, 0x4E, /* 0x84-0x87 */
+	0xE5, 0x46, 0x00, 0x00, 0xE5, 0x48, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0xE5, 0x52, 0xE5, 0x47, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0xE5, 0x4B, 0x00, 0x00, 0x00, 0x00, 0x89, 0x92, /* 0x94-0x97 */
+	0x00, 0x00, 0x93, 0xE3, 0x00, 0x00, 0xE5, 0x4C, /* 0x98-0x9B */
+	0xE5, 0x4F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xE5, 0x45, 0x00, 0x00, 0x91, 0x45, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xE5, 0x49, 0x8E, 0x46, 0x90, 0x64, 0x8C, 0x4F, /* 0xA8-0xAB */
+	0x96, 0xF2, 0x00, 0x00, 0x96, 0xF7, 0x8F, 0x92, /* 0xAC-0xAF */
+	0xEE, 0x82, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xE5, 0x56, 0xE5, 0x54, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x98, 0x6D, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xE5, 0x53, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x97, 0x95, 0x00, 0x00, 0xE5, 0x55, /* 0xCC-0xCF */
+	0xE5, 0x57, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xE5, 0x58, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0xE5, 0x5B, 0xE5, 0x59, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x93, 0xA1, 0xE5, 0x5A, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x94, 0xCB, 0xE5, 0x4D, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8F, 0x93, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xE5, 0x5C, 0xE5, 0x61, 0x91, 0x94, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0x60, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_86[512] = {
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0x41, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0x62, 0x91, 0x68, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0x5D, 0xE5, 0x5F, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE5, 0x5E, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x9F, 0x50, 0x9F, 0x41, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0x64, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0x63, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x97, 0x96, 0x00, 0x00, 0xE1, 0xBA, /* 0x2C-0x2F */
+	0xE5, 0x65, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE5, 0x66, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0xE5, 0x67, 0x8C, 0xD5, 0x00, 0x00, /* 0x4C-0x4F */
+	0x8B, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0xE5, 0x69, 0x99, 0x7C, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x8B, 0x95, 0x00, 0x00, /* 0x58-0x5B */
+	0x97, 0xB8, 0x00, 0x00, 0x8B, 0xF1, 0xE5, 0x6A, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE5, 0x6B, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x92, 0x8E, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0xE5, 0x6C, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x93, 0xF8, 0x00, 0x00, 0x88, 0xB8, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0xE1, 0xE5, 0x71, /* 0x88-0x8B */
+	0xE5, 0x72, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE5, 0x6D, /* 0x90-0x93 */
+	0x00, 0x00, 0x8E, 0x5C, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE5, 0x6E, /* 0xA0-0xA3 */
+	0x94, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0xE5, 0x6F, 0xE5, 0x70, 0xE5, 0x7A, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE5, 0x74, /* 0xAC-0xAF */
+	0xE5, 0x77, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0x73, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xE5, 0x75, 0x00, 0x00, 0xE5, 0x76, 0x8E, 0xD6, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xE5, 0x78, 0x00, 0x00, 0x92, 0x60, /* 0xC8-0xCB */
+	0x00, 0x00, 0x8C, 0x75, 0x8A, 0x61, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xE5, 0x7B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x8A, 0x5E, 0x00, 0x00, 0xE5, 0x81, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0x7C, 0xE5, 0x80, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x94, 0xB8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0xE5, 0x7D, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0xE5, 0x7E, 0x95, 0x67, 0x94, 0xD8, 0xE5, 0x82, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x91, 0xFB, 0xE5, 0x8C, 0x00, 0x00, 0xE5, 0x88, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0xE9, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_87[512] = {
+	0xE5, 0x86, 0x00, 0x00, 0x96, 0x49, 0xE5, 0x87, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0x84, 0x00, 0x00, /* 0x04-0x07 */
+	0xE5, 0x85, 0xE5, 0x8A, 0xE5, 0x8D, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0xE5, 0x8B, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0xE5, 0x89, 0xE5, 0x83, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x92, 0x77, 0x00, 0x00, 0xE5, 0x94, 0x00, 0x00, /* 0x18-0x1B */
+	0x96, 0xA8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0xE5, 0x92, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0xE5, 0x93, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0xE5, 0x8E, 0x00, 0x00, 0x00, 0x00, 0xE5, 0x90, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE5, 0x91, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE5, 0x8F, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x90, 0xE4, 0x00, 0x00, 0x98, 0x58, /* 0x48-0x4B */
+	0xE5, 0x98, 0x00, 0x00, 0xE5, 0x99, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE5, 0x9F, /* 0x50-0x53 */
+	0x00, 0x00, 0x90, 0x49, 0x00, 0x00, 0xE5, 0x9B, /* 0x54-0x57 */
+	0x00, 0x00, 0xE5, 0x9E, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE5, 0x96, /* 0x5C-0x5F */
+	0xE5, 0x95, 0x00, 0x00, 0x00, 0x00, 0xE5, 0xA0, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0xDA, 0x00, 0x00, /* 0x64-0x67 */
+	0xE5, 0x9C, 0x00, 0x00, 0xE5, 0xA1, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0x9D, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0xE5, 0x9A, 0x00, 0x00, 0x92, 0xB1, 0x00, 0x00, /* 0x74-0x77 */
+	0xE5, 0x97, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x94, 0x88, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xA5, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x97, 0x5A, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE5, 0xA4, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xA3, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE5, 0xAC, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE5, 0xA6, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE5, 0xAE, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x97, 0x86, 0xE5, 0xB1, /* 0xB8-0xBB */
+	0x00, 0x00, 0xE5, 0xA8, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0xE5, 0xA9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xE5, 0xAD, 0x00, 0x00, 0xE5, 0xB0, 0xE5, 0xAF, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE5, 0xA7, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0xE5, 0xAA, 0x00, 0x00, 0xE5, 0xBB, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0xE5, 0xB4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE5, 0xB2, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xB3, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xB8, 0xE5, 0xB9, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x8A, 0x49, 0x00, 0x00, 0x8B, 0x61, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xB7, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_88[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0xE5, 0xA2, 0x00, 0x00, 0xEE, 0x85, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0xE5, 0xB6, 0xE5, 0xBA, 0xE5, 0xB5, /* 0x0C-0x0F */
+	0x00, 0x00, 0xE5, 0xBC, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0xE5, 0xBE, 0xE5, 0xBD, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0xE5, 0xC0, 0xE5, 0xBF, 0xE5, 0x79, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE5, 0xC4, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0xE5, 0xC1, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xC2, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0xE5, 0xC3, 0x00, 0x00, 0xE5, 0xC5, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x8C, 0x8C, 0x00, 0x00, 0xE5, 0xC7, 0x00, 0x00, /* 0x40-0x43 */
+	0xE5, 0xC6, 0x00, 0x00, 0x8F, 0x4F, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x8D, 0x73, 0x9F, 0xA5, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xC8, 0x8F, 0x70, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8A, 0x58, /* 0x54-0x57 */
+	0x00, 0x00, 0xE5, 0xC9, 0x00, 0x00, 0x89, 0x71, /* 0x58-0x5B */
+	0x00, 0x00, 0x8F, 0xD5, 0xE5, 0xCA, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x8D, 0x74, 0xE5, 0xCB, 0x88, 0xDF, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x95, 0x5C, 0x00, 0x00, 0x00, 0x00, 0xE5, 0xCC, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x90, 0x8A, 0x00, 0x00, 0xE5, 0xD3, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0xE5, 0xD0, 0x00, 0x00, 0x92, 0x8F, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0xE5, 0xD1, 0xE5, 0xCE, 0x8B, 0xDC, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xE5, 0xCD, 0xE5, 0xD4, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x8C, 0x55, 0x00, 0x00, 0x00, 0x00, 0x91, 0xDC, /* 0x88-0x8B */
+	0x00, 0x00, 0xE5, 0xDA, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xD6, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x91, 0xB3, 0xE5, 0xD5, /* 0x94-0x97 */
+	0x00, 0x00, 0xE5, 0xD8, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xCF, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xD9, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xE5, 0xDB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x94, 0xED, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xD7, 0x00, 0x00, /* 0xAC-0xAF */
+	0xE5, 0xDC, 0xE5, 0xDE, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x8C, 0xD1, 0xE5, 0xD2, 0x00, 0x00, 0x88, 0xBF, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE5, 0xDD, /* 0xBC-0xBF */
+	0x00, 0x00, 0x8D, 0xD9, 0x97, 0xF4, 0xE5, 0xDF, /* 0xC0-0xC3 */
+	0xE5, 0xE0, 0x91, 0x95, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x97, 0xA0, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xE5, 0xE1, 0x97, 0x54, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xE5, 0xE2, 0xE5, 0xE3, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x95, 0xE2, 0xE5, 0xE4, 0x00, 0x00, 0x8D, 0xBE, /* 0xDC-0xDF */
+	0x00, 0x00, 0x97, 0xA1, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xE5, 0xE9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xEA, 0x8F, 0xD6, /* 0xF0-0xF3 */
+	0xE5, 0xE8, 0xEE, 0x86, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x97, 0x87, 0xE5, 0xE5, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0xE5, 0xE7, 0x90, 0xBB, 0x90, 0x9E, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_89[512] = {
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xE6, 0x00, 0x00, /* 0x00-0x03 */
+	0xE5, 0xEB, 0x00, 0x00, 0x00, 0x00, 0x95, 0xA1, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xED, 0x00, 0x00, /* 0x08-0x0B */
+	0xE5, 0xEC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x8A, 0x8C, 0x00, 0x00, 0x96, 0x4A, 0xE5, 0xEE, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0xED, 0x41, 0xE5, 0xFA, 0xE5, 0xF0, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0xE5, 0xF1, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xF2, 0xE5, 0xF3, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xF7, 0x00, 0x00, /* 0x34-0x37 */
+	0xE5, 0xF8, 0x00, 0x00, 0x00, 0x00, 0xE5, 0xF6, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0xE5, 0xF4, 0x00, 0x00, 0xE5, 0xEF, /* 0x40-0x43 */
+	0xE5, 0xF5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0xE5, 0xF9, 0xE8, 0xB5, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0xA6, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xFC, 0x8B, 0xDD, /* 0x5C-0x5F */
+	0xE5, 0xFB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0xE6, 0x41, 0x00, 0x00, 0xE6, 0x40, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0x43, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0xE6, 0x42, 0x00, 0x00, 0xE6, 0x44, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x8F, 0x50, 0x00, 0x00, /* 0x70-0x73 */
+	0xE6, 0x45, 0x00, 0x00, 0x00, 0x00, 0xE6, 0x46, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0x47, 0x90, 0xBC, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x97, 0x76, 0x00, 0x00, 0xE6, 0x48, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x95, 0xA2, 0x94, 0x65, /* 0x84-0x87 */
+	0xE6, 0x49, 0x00, 0x00, 0xE6, 0x4A, 0x8C, 0xA9, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8B, 0x4B, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE6, 0x4B, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x8E, 0x8B, 0x94, 0x60, /* 0x94-0x97 */
+	0xE6, 0x4C, 0x00, 0x00, 0x8A, 0x6F, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0xE6, 0x4D, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0x4F, 0x97, 0x97, /* 0xA4-0xA7 */
+	0x00, 0x00, 0xE6, 0x4E, 0x90, 0x65, 0x00, 0x00, /* 0xA8-0xAB */
+	0xE6, 0x50, 0x00, 0x00, 0x00, 0x00, 0xE6, 0x51, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0x52, 0x8A, 0xCF, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0x53, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0xE6, 0x54, 0x00, 0x00, 0xE6, 0x55, /* 0xBC-0xBF */
+	0xE6, 0x56, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x8A, 0x70, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0x57, 0x00, 0x00, /* 0xD8-0xDB */
+	0xE6, 0x58, 0xE6, 0x59, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x89, 0xF0, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x90, 0x47, 0xE6, 0x5A, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xE6, 0x5B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xE6, 0x5C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_8A[512] = {
+	0x8C, 0xBE, 0x00, 0x00, 0x92, 0xF9, 0xE6, 0x5D, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x8C, 0x76, 0x00, 0x00, 0x90, 0x75, 0x00, 0x00, /* 0x08-0x0B */
+	0xE6, 0x60, 0x00, 0x00, 0x93, 0xA2, 0x00, 0x00, /* 0x0C-0x0F */
+	0xE6, 0x5F, 0x00, 0x00, 0xEE, 0x87, 0x8C, 0x50, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0x5E, 0x91, 0xF5, /* 0x14-0x17 */
+	0x8B, 0x4C, 0x00, 0x00, 0x00, 0x00, 0xE6, 0x61, /* 0x18-0x1B */
+	0x00, 0x00, 0xE6, 0x62, 0x00, 0x00, 0x8F, 0xD7, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8C, 0x8D, /* 0x20-0x23 */
+	0x00, 0x00, 0xE6, 0x63, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x96, 0x4B, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x90, 0xDD, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x8B, 0x96, 0x00, 0x00, 0x96, 0xF3, /* 0x30-0x33 */
+	0x91, 0x69, 0x00, 0x00, 0xE6, 0x64, 0xEE, 0x88, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x90, 0x66, 0x92, 0x90, /* 0x38-0x3B */
+	0x8F, 0xD8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0xE6, 0x65, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0x68, 0x00, 0x00, /* 0x44-0x47 */
+	0xE6, 0x69, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x8D, 0xBC, 0x91, 0xC0, 0xE6, 0x67, 0x00, 0x00, /* 0x50-0x53 */
+	0x8F, 0xD9, 0x95, 0x5D, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE6, 0x66, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x8E, 0x8C, 0x00, 0x00, /* 0x5C-0x5F */
+	0x89, 0x72, 0x00, 0x00, 0xE6, 0x6D, 0x8C, 0x77, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x8E, 0x8E, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x8E, 0x8D, 0x00, 0x00, 0x98, 0x6C, /* 0x68-0x6B */
+	0xE6, 0x6C, 0xE6, 0x6B, 0x91, 0x46, 0x00, 0x00, /* 0x6C-0x6F */
+	0x8B, 0x6C, 0x98, 0x62, 0x8A, 0x59, 0x8F, 0xDA, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0xEE, 0x89, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0xE6, 0x6A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0x6F, 0x00, 0x00, /* 0x80-0x83 */
+	0xE6, 0x70, 0xE6, 0x6E, 0x00, 0x00, 0x8C, 0xD6, /* 0x84-0x87 */
+	0x00, 0x00, 0x97, 0x5F, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x8E, 0x8F, 0x94, 0x46, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0xE6, 0x73, 0x00, 0x00, 0x90, 0xBE, /* 0x90-0x93 */
+	0x00, 0x00, 0x92, 0x61, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x97, 0x55, 0x00, 0x00, 0xE6, 0x76, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x8C, 0xEA, 0x00, 0x00, /* 0x9C-0x9F */
+	0x90, 0xBD, 0xE6, 0x72, 0x00, 0x00, 0xE6, 0x77, /* 0xA0-0xA3 */
+	0x8C, 0xEB, 0xE6, 0x74, 0xE6, 0x75, 0xEE, 0x8A, /* 0xA4-0xA7 */
+	0xE6, 0x71, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x90, 0xE0, 0x93, 0xC7, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x92, 0x4E, 0x00, 0x00, 0x89, 0xDB, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x94, 0xEE, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x8B, 0x62, 0x00, 0x00, 0xEE, 0x8B, 0x92, 0xB2, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0x7A, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xE6, 0x78, 0x00, 0x00, 0x00, 0x00, 0x92, 0x6B, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x90, 0xBF, /* 0xC8-0xCB */
+	0x8A, 0xD0, 0xE6, 0x79, 0x00, 0x00, 0x90, 0x7A, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x97, 0xC8, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x98, 0x5F, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0x7B, 0xE6, 0x87, /* 0xD8-0xDB */
+	0x92, 0xB3, 0x00, 0x00, 0xE6, 0x86, 0xEE, 0x8C, /* 0xDC-0xDF */
+	0xE6, 0x83, 0xE6, 0x8B, 0xE6, 0x84, 0x00, 0x00, /* 0xE0-0xE3 */
+	0xE6, 0x80, 0x00, 0x00, 0x92, 0xFA, 0xE6, 0x7E, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE6, 0x7C, /* 0xE8-0xEB */
+	0x00, 0x00, 0x97, 0x40, 0x8E, 0x90, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0xE6, 0x81, 0x00, 0x00, 0xE6, 0x7D, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0xEE, 0x8E, 0xE6, 0x85, /* 0xF4-0xF7 */
+	0x8F, 0x94, 0x00, 0x00, 0x8C, 0xBF, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0x91, 0xF8, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_8B[512] = {
+	0x96, 0x64, 0x89, 0x79, 0x88, 0xE0, 0x00, 0x00, /* 0x00-0x03 */
+	0x93, 0xA3, 0x00, 0x00, 0x00, 0x00, 0xE6, 0x89, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0xE6, 0x88, 0x00, 0x00, 0x93, 0xE4, 0x00, 0x00, /* 0x0C-0x0F */
+	0xE6, 0x8D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0xE6, 0x82, 0x00, 0x00, 0xE6, 0x8C, 0xE6, 0x8E, /* 0x14-0x17 */
+	0x00, 0x00, 0x8C, 0xAA, 0xE6, 0x8A, 0x8D, 0x75, /* 0x18-0x1B */
+	0x00, 0x00, 0x8E, 0xD3, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0xE6, 0x8F, 0x97, 0x77, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0x92, 0x00, 0x00, /* 0x24-0x27 */
+	0xE6, 0x95, 0x00, 0x00, 0x00, 0x00, 0xE6, 0x93, /* 0x28-0x2B */
+	0x95, 0x54, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE6, 0x90, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x8B, 0xDE, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0x94, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0xE6, 0x96, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0xE6, 0x9A, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0xE6, 0x97, 0x00, 0x00, 0xE6, 0x99, 0xE6, 0x98, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEE, 0x8F, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0x9B, 0x00, 0x00, /* 0x54-0x57 */
+	0x8E, 0xAF, 0x00, 0x00, 0xE6, 0x9D, 0xE6, 0x9C, /* 0x58-0x5B */
+	0x95, 0x88, 0x00, 0x00, 0x00, 0x00, 0xE6, 0x9F, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x8C, 0x78, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE6, 0x9E, /* 0x68-0x6B */
+	0xE6, 0xA0, 0x00, 0x00, 0x00, 0x00, 0xE6, 0xA1, /* 0x6C-0x6F */
+	0x8B, 0x63, 0xE3, 0xBF, 0x8F, 0xF7, 0x00, 0x00, /* 0x70-0x73 */
+	0xE6, 0xA2, 0x00, 0x00, 0x00, 0x00, 0x8C, 0xEC, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0xE6, 0xA3, 0x00, 0x00, 0xEE, 0x90, /* 0x7C-0x7F */
+	
+	0xE6, 0xA4, 0x00, 0x00, 0x00, 0x00, 0x8E, 0x5D, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x9D, 0xCC, 0x00, 0x00, /* 0x88-0x8B */
+	0xE6, 0xA5, 0x00, 0x00, 0xE6, 0xA6, 0x00, 0x00, /* 0x8C-0x8F */
+	0x8F, 0x51, 0x00, 0x00, 0xE6, 0xA7, 0xE6, 0xA8, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0xA9, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0xE6, 0xAA, 0xE6, 0xAB, 0x00, 0x00, /* 0x98-0x9B */
+};
+
+static unsigned char u2c_8C[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x92, 0x4A, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0xAC, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE6, 0xAE, /* 0x3C-0x3F */
+	0x00, 0x00, 0xE6, 0xAD, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x93, 0xA4, 0x00, 0x00, /* 0x44-0x47 */
+	0xE6, 0xAF, 0x00, 0x00, 0x96, 0x4C, 0x00, 0x00, /* 0x48-0x4B */
+	0xE6, 0xB0, 0x00, 0x00, 0xE6, 0xB1, 0x00, 0x00, /* 0x4C-0x4F */
+	0xE6, 0xB2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0xE6, 0xB3, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x93, 0xD8, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x8F, 0xDB, 0xE6, 0xB4, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x8D, 0x8B, 0x98, 0xAC, /* 0x68-0x6B */
+	0xE6, 0xB5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0xE6, 0xB6, 0x95, 0x5E, 0xE6, 0xB7, 0x00, 0x00, /* 0x78-0x7B */
+	0xE6, 0xBF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0xB8, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0xE6, 0xBA, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0xE6, 0xB9, 0xE6, 0xBB, 0x00, 0x00, /* 0x88-0x8B */
+	0x96, 0x65, 0xE6, 0xBC, 0xE6, 0xBD, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0xE6, 0xBE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0xE6, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x8A, 0x4C, 0x92, 0xE5, 0x00, 0x00, /* 0x9C-0x9F */
+	0x95, 0x89, 0x8D, 0xE0, 0x8D, 0x76, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x95, 0x6E, /* 0xA4-0xA7 */
+	0x89, 0xDD, 0x94, 0xCC, 0xE6, 0xC3, 0x8A, 0xD1, /* 0xA8-0xAB */
+	0x90, 0xD3, 0xE6, 0xC2, 0xE6, 0xC7, 0x92, 0x99, /* 0xAC-0xAF */
+	0x96, 0xE1, 0x00, 0x00, 0xE6, 0xC5, 0xE6, 0xC6, /* 0xB0-0xB3 */
+	0x8B, 0x4D, 0x00, 0x00, 0xE6, 0xC8, 0x94, 0x83, /* 0xB4-0xB7 */
+	0x91, 0xDD, 0x00, 0x00, 0x00, 0x00, 0x94, 0xEF, /* 0xB8-0xBB */
+	0x93, 0x5C, 0xE6, 0xC4, 0x00, 0x00, 0x96, 0x66, /* 0xBC-0xBF */
+	0x89, 0xEA, 0xE6, 0xCA, 0x98, 0x47, 0x92, 0xC0, /* 0xC0-0xC3 */
+	0x98, 0x64, 0x00, 0x00, 0x00, 0x00, 0x8E, 0x91, /* 0xC4-0xC7 */
+	0xE6, 0xC9, 0x00, 0x00, 0x91, 0xAF, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0xE6, 0xDA, 0x91, 0x47, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x93, 0xF6, 0x00, 0x00, 0x95, 0x6F, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0xCD, 0x8E, 0x5E, /* 0xD8-0xDB */
+	0x8E, 0x92, 0x00, 0x00, 0x8F, 0xDC, 0x00, 0x00, /* 0xDC-0xDF */
+	0x94, 0x85, 0x00, 0x00, 0x8C, 0xAB, 0xE6, 0xCC, /* 0xE0-0xE3 */
+	0xE6, 0xCB, 0x00, 0x00, 0x95, 0x8A, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x8E, 0xBF, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x93, 0x71, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0xEE, 0x91, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xEE, 0x92, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0xCF, 0xE6, 0xD0, /* 0xF8-0xFB */
+	0x8D, 0x77, 0xE6, 0xCE, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_8D[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0xE6, 0xD1, 0xE6, 0xD2, 0x00, 0x00, 0xE6, 0xD4, /* 0x04-0x07 */
+	0x91, 0xA1, 0x00, 0x00, 0xE6, 0xD3, 0x8A, 0xE4, /* 0x08-0x0B */
+	0x00, 0x00, 0xE6, 0xD6, 0x00, 0x00, 0xE6, 0xD5, /* 0x0C-0x0F */
+	0xE6, 0xD7, 0x00, 0x00, 0xEE, 0x93, 0xE6, 0xD9, /* 0x10-0x13 */
+	0xE6, 0xDB, 0x00, 0x00, 0xE6, 0xDC, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x90, 0xD4, 0x00, 0x00, 0x8E, 0xCD, 0xE6, 0xDD, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8A, 0x71, /* 0x68-0x6B */
+	0x00, 0x00, 0xE6, 0xDE, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x91, 0x96, 0xE6, 0xDF, 0x00, 0x00, 0xE6, 0xE0, /* 0x70-0x73 */
+	0x95, 0x8B, 0x00, 0x00, 0xEE, 0x94, 0x8B, 0x4E, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xE6, 0xE1, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x92, 0xB4, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0x7A, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0xE6, 0xE2, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8E, 0xEF, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x90, 0x96, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x91, 0xAB, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0xE5, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0xE4, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0xE3, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE6, 0xEB, /* 0xC8-0xCB */
+	0xE6, 0xE9, 0x00, 0x00, 0x00, 0x00, 0xE6, 0xE6, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0xE8, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0xE7, 0xE6, 0xEA, /* 0xD8-0xDB */
+	0x00, 0x00, 0x8B, 0x97, 0x00, 0x00, 0xE6, 0xEE, /* 0xDC-0xDF */
+	0x00, 0x00, 0x90, 0xD5, 0x00, 0x00, 0xE6, 0xEF, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x8C, 0xD7, 0x00, 0x00, 0xE6, 0xEC, 0xE6, 0xED, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x98, 0x48, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x92, 0xB5, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x91, 0x48, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0xE6, 0xF0, 0x00, 0x00, 0x00, 0x00, 0xE6, 0xF3, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_8E[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0xE6, 0xF1, 0xE6, 0xF2, 0x97, 0x78, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x93, 0xA5, /* 0x0C-0x0F */
+	0xE6, 0xF6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0xE6, 0xF4, 0xE6, 0xF5, 0xE6, 0xF7, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0x48, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xE6, 0xFA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0xE6, 0xFB, 0xE6, 0xF9, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0xF8, 0x00, 0x00, /* 0x40-0x43 */
+	0x92, 0xFB, 0x00, 0x00, 0x00, 0x00, 0xE7, 0x40, /* 0x44-0x47 */
+	0xE7, 0x44, 0xE7, 0x41, 0xE6, 0xFC, 0x00, 0x00, /* 0x48-0x4B */
+	0xE7, 0x42, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0xE7, 0x43, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0xE7, 0x4A, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0xE7, 0x45, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x90, 0xD6, /* 0x5C-0x5F */
+	0xE7, 0x47, 0x00, 0x00, 0x00, 0x00, 0xE7, 0x49, /* 0x60-0x63 */
+	0xE7, 0x46, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0x4C, 0x00, 0x00, /* 0x70-0x73 */
+	0x8F, 0x52, 0x00, 0x00, 0xE7, 0x4B, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0xE7, 0x4D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xE7, 0x4E, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0xE7, 0x51, 0xE7, 0x50, 0x00, 0x00, 0xE7, 0x4F, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0x53, 0xE7, 0x52, /* 0x88-0x8B */
+	0x00, 0x00, 0x96, 0xF4, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0xE7, 0x55, 0x00, 0x00, 0xE7, 0x54, /* 0x90-0x93 */
+	0xE7, 0x56, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0xE7, 0x57, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0xE7, 0x59, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0x58, 0x90, 0x67, /* 0xA8-0xAB */
+	0xE7, 0x5A, 0x00, 0x00, 0x00, 0x00, 0x8B, 0xEB, /* 0xAC-0xAF */
+	0xE7, 0x5B, 0xE7, 0x5D, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0x5E, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xE7, 0x5F, 0xE7, 0x5C, 0x00, 0x00, /* 0xC4-0xC7 */
+	0xE7, 0x60, 0x00, 0x00, 0x8E, 0xD4, 0xE7, 0x61, /* 0xC8-0xCB */
+	0x8B, 0x4F, 0x8C, 0x52, 0x00, 0x00, 0xEE, 0x96, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x8C, 0xAC, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE7, 0x62, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x93, 0xEE, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x93, 0x5D, 0xE7, 0x63, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE7, 0x66, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x8E, 0xB2, 0x00, 0x00, 0x00, 0x00, 0xE7, 0x65, /* 0xF8-0xFB */
+	0xE7, 0x64, 0x8C, 0x79, 0xE7, 0x67, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_8F[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8A, 0x72, /* 0x00-0x03 */
+	0x00, 0x00, 0xE7, 0x69, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x8D, 0xDA, 0xE7, 0x68, 0x00, 0x00, /* 0x08-0x0B */
+	0xE7, 0x71, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0x6B, 0xE7, 0x6D, /* 0x10-0x13 */
+	0x95, 0xE3, 0xE7, 0x6A, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0xE7, 0x6C, 0x00, 0x00, 0xE7, 0x70, /* 0x18-0x1B */
+	0xE7, 0x6E, 0x8B, 0x50, 0x00, 0x00, 0xE7, 0x6F, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0x72, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x94, 0x79, 0x97, 0xD6, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8F, 0x53, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE7, 0x73, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x97, 0x41, 0xE7, 0x75, 0x00, 0x00, 0xE7, 0x74, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0x78, 0x97, 0x60, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0x77, 0x00, 0x00, /* 0x40-0x43 */
+	0x8A, 0x8D, 0xE7, 0x76, 0xE7, 0x7B, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0xE7, 0x7A, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0xE7, 0x79, 0x93, 0x51, 0xE7, 0x7C, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE7, 0x7D, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0xE7, 0x7E, 0x00, 0x00, 0x00, 0x00, 0x8D, 0x8C, /* 0x5C-0x5F */
+	0x00, 0x00, 0x8C, 0x44, 0xE7, 0x80, 0xE7, 0x81, /* 0x60-0x63 */
+	0xE7, 0x82, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x90, 0x68, /* 0x98-0x9B */
+	0xE7, 0x83, 0x00, 0x00, 0x8E, 0xAB, 0xE7, 0x84, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE7, 0x85, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x99, 0x9F, /* 0xA4-0xA7 */
+	0x99, 0x9E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0xE7, 0x86, 0xE3, 0x90, 0xE7, 0x87, /* 0xAC-0xAF */
+	0x92, 0x43, 0x90, 0x4A, 0x94, 0x5F, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE7, 0x88, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x95, 0xD3, 0x92, 0xD2, /* 0xB8-0xBB */
+	0x8D, 0x9E, 0x00, 0x00, 0x00, 0x00, 0x92, 0x48, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0x49, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x96, 0x98, 0x90, 0x76, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x8C, 0x7D, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x8B, 0xDF, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x95, 0xD4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0x89, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0x8B, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xE7, 0x8A, 0x89, 0xDE, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x93, 0xF4, 0xE7, 0x8C, 0x94, 0x97, /* 0xE8-0xEB */
+	0x00, 0x00, 0x93, 0x52, 0x00, 0x00, 0xE7, 0x8D, /* 0xEC-0xEF */
+	0x8F, 0x71, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xE7, 0x8F, 0x00, 0x00, 0x00, 0x00, 0x96, 0xC0, /* 0xF4-0xF7 */
+	0xE7, 0x9E, 0xE7, 0x91, 0xE7, 0x92, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x92, 0xC7, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_90[512] = {
+	0x91, 0xDE, 0x91, 0x97, 0x00, 0x00, 0x93, 0xA6, /* 0x00-0x03 */
+	0x00, 0x00, 0xE7, 0x90, 0x8B, 0x74, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE7, 0x99, /* 0x08-0x0B */
+	0x00, 0x00, 0xE7, 0x96, 0xE7, 0xA3, 0x93, 0xA7, /* 0x0C-0x0F */
+	0x92, 0x80, 0xE7, 0x93, 0x00, 0x00, 0x92, 0xFC, /* 0x10-0x13 */
+	0x93, 0x72, 0xE7, 0x94, 0xE7, 0x98, 0x90, 0x80, /* 0x14-0x17 */
+	0x00, 0x00, 0x94, 0x87, 0x92, 0xCA, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x90, 0xC0, 0xE7, 0x97, 0x91, 0xAC, /* 0x1C-0x1F */
+	0x91, 0xA2, 0xE7, 0x95, 0x88, 0xA7, 0x98, 0x41, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE7, 0x9A, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x91, 0xDF, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x8F, 0x54, 0x90, 0x69, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0xE7, 0x9C, 0xE7, 0x9B, 0x00, 0x00, /* 0x34-0x37 */
+	0x88, 0xED, 0xE7, 0x9D, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x95, 0x4E, 0x00, 0x00, 0xE7, 0xA5, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x93, 0xD9, 0x90, 0x8B, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x92, 0x78, 0x00, 0x00, 0x8B, 0xF6, /* 0x44-0x47 */
+	0x00, 0x00, 0xE7, 0xA4, 0x97, 0x56, 0x89, 0x5E, /* 0x48-0x4B */
+	0x00, 0x00, 0x95, 0xD5, 0x89, 0xDF, 0xE7, 0x9F, /* 0x4C-0x4F */
+	0xE7, 0xA0, 0xE7, 0xA1, 0xE7, 0xA2, 0x93, 0xB9, /* 0x50-0x53 */
+	0x92, 0x42, 0x88, 0xE1, 0xE7, 0xA6, 0x00, 0x00, /* 0x54-0x57 */
+	0xE7, 0xA7, 0xEA, 0xA1, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x91, 0xBB, 0x00, 0x00, 0xE7, 0xA8, 0x00, 0x00, /* 0x5C-0x5F */
+	0x89, 0x93, 0x91, 0x6B, 0x00, 0x00, 0x8C, 0xAD, /* 0x60-0x63 */
+	0x00, 0x00, 0x97, 0x79, 0x00, 0x00, 0xEE, 0x99, /* 0x64-0x67 */
+	0xE7, 0xA9, 0x93, 0x4B, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x91, 0x98, 0x8E, 0xD5, 0xE7, 0xAA, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0xAD, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x8F, 0x85, 0xE7, 0xAB, 0x91, 0x4A, /* 0x74-0x77 */
+	0x91, 0x49, 0x00, 0x00, 0x88, 0xE2, 0x00, 0x00, /* 0x78-0x7B */
+	0x97, 0xC9, 0xE7, 0xAF, 0x00, 0x00, 0x94, 0xF0, /* 0x7C-0x7F */
+	
+	0xE7, 0xB1, 0xE7, 0xB0, 0xE7, 0xAE, 0xE2, 0x84, /* 0x80-0x83 */
+	0x8A, 0xD2, 0x00, 0x00, 0x00, 0x00, 0xE7, 0x8E, /* 0x84-0x87 */
+	0x00, 0x00, 0xE7, 0xB3, 0xE7, 0xB2, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE7, 0xB4, /* 0x8C-0x8F */
+	0x00, 0x00, 0x97, 0x57, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x93, 0xDF, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x96, 0x4D, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xE7, 0xB5, 0x00, 0x00, 0x8E, 0xD7, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE7, 0xB6, /* 0xAC-0xAF */
+	0x00, 0x00, 0xE7, 0xB7, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xE7, 0xB8, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x93, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x88, 0xE8, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x8D, 0x78, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x98, 0x59, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE7, 0xBC, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0xEE, 0x9A, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x8C, 0x53, 0xE7, 0xB9, 0x00, 0x00, /* 0xE0-0xE3 */
+	0xE7, 0xBA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x95, 0x94, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x8A, 0x73, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x97, 0x58, 0x00, 0x00, 0x8B, 0xBD, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x93, 0x73, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_91[512] = {
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0xBD, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0xBE, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0xEE, 0x9C, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0xE7, 0xBF, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEE, 0x9D, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x93, 0x41, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xE7, 0xC1, 0x00, 0x00, 0xE7, 0xC0, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x93, 0xD1, 0xE7, 0xC2, 0x8F, 0x55, /* 0x48-0x4B */
+	0x8E, 0xDE, 0x94, 0x7A, 0x92, 0x91, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x8E, 0xF0, 0x00, 0x00, /* 0x50-0x53 */
+	0x90, 0x8C, 0x00, 0x00, 0xE7, 0xC3, 0x00, 0x00, /* 0x54-0x57 */
+	0xE7, 0xC4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x90, 0x7C, 0xE7, 0xC5, /* 0x60-0x63 */
+	0x00, 0x00, 0xE7, 0xC6, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0xE7, 0xC7, 0x97, 0x8F, 0x00, 0x00, /* 0x68-0x6B */
+	0x8F, 0x56, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0xC9, 0xE7, 0xC8, /* 0x70-0x73 */
+	0x00, 0x00, 0x8D, 0x79, 0x00, 0x00, 0x8D, 0x93, /* 0x74-0x77 */
+	0x8E, 0x5F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0xCC, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8F, 0x86, /* 0x84-0x87 */
+	0x00, 0x00, 0xE7, 0xCB, 0x00, 0x00, 0xE7, 0xCA, /* 0x88-0x8B */
+	0x00, 0x00, 0x91, 0xE7, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x8C, 0xED, 0x00, 0x00, 0x90, 0xC1, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x94, 0xAE, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x8F, 0x58, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0xCD, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x8F, 0xDD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0xD0, 0xE7, 0xCE, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE7, 0xCF, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0xE7, 0xD2, 0xE7, 0xD1, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x8F, 0xF8, 0x00, 0x00, 0xE7, 0xD3, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0xE7, 0xD4, 0xE7, 0xD5, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x94, 0xCE, 0x8D, 0xD1, /* 0xC4-0xC7 */
+	0x8E, 0xDF, 0xE7, 0xD6, 0x00, 0x00, 0xE7, 0xD7, /* 0xC8-0xCB */
+	0x97, 0xA2, 0x8F, 0x64, 0x96, 0xEC, 0x97, 0xCA, /* 0xCC-0xCF */
+	0xE7, 0xD8, 0x8B, 0xE0, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0xD9, 0xEE, 0x9F, /* 0xD4-0xD7 */
+	0x93, 0x42, 0x00, 0x00, 0xEE, 0x9E, 0xE7, 0xDC, /* 0xD8-0xDB */
+	0x8A, 0x98, 0x90, 0x6A, 0xEE, 0xA0, 0xE7, 0xDA, /* 0xDC-0xDF */
+	0x00, 0x00, 0xE7, 0xDB, 0x00, 0x00, 0x92, 0xDE, /* 0xE0-0xE3 */
+	0xEE, 0xA3, 0xEE, 0xA4, 0x96, 0x74, 0x8B, 0xFA, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0xEE, 0xA1, 0xEE, 0xA2, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0xE7, 0xDE, 0xE7, 0xDF, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0xE7, 0xDD, 0x00, 0x00, 0x00, 0x00, 0xE7, 0xE1, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_92[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0xEE, 0xA5, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xEE, 0xA7, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x93, 0xDD, 0x8A, 0x62, 0x00, 0x00, /* 0x0C-0x0F */
+	0xEE, 0xA6, 0xE7, 0xE5, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0xE7, 0xE2, 0xE7, 0xE4, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0xE0, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0xE8, 0x6E, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0xE7, 0xE3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x97, 0xE9, 0x00, 0x00, 0x00, 0x00, 0x8C, 0xD8, /* 0x34-0x37 */
+	0x00, 0x00, 0xEE, 0xAE, 0xEE, 0xA8, 0x00, 0x00, /* 0x38-0x3B */
+	0xEE, 0xAA, 0x00, 0x00, 0x00, 0x00, 0xE7, 0xED, /* 0x3C-0x3F */
+	0xEE, 0xA9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x93, 0x53, 0xE7, 0xE8, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0xE7, 0xEB, 0xE7, 0xE9, 0x00, 0x00, 0xE7, 0xEE, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0xEE, 0xAB, 0x00, 0x00, /* 0x4C-0x4F */
+	0xE7, 0xEF, 0xEE, 0xAD, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE7, 0xE7, /* 0x54-0x57 */
+	0x00, 0x00, 0xEE, 0xAC, 0xE7, 0xF4, 0x89, 0x94, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0xE6, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x94, 0xAB, 0x00, 0x00, /* 0x60-0x63 */
+	0xE7, 0xEA, 0x00, 0x00, 0x8F, 0xDE, 0xEE, 0xAF, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x8D, 0x7A, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEE, 0xB1, /* 0x74-0x77 */
+	0xEE, 0xB2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x96, 0x67, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x8B, 0xE2, 0x00, 0x00, 0x00, 0x00, 0x8F, 0x65, /* 0x80-0x83 */
+	0x00, 0x00, 0x93, 0xBA, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0xED, 0x43, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x91, 0x4C, 0x00, 0x00, 0xE7, 0xF2, /* 0x90-0x93 */
+	0x00, 0x00, 0xE7, 0xEC, 0xE7, 0xF1, 0x00, 0x00, /* 0x94-0x97 */
+	0x96, 0xC1, 0x00, 0x00, 0x92, 0xB6, 0xE7, 0xF3, /* 0x98-0x9B */
+	0xE7, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEE, 0xB0, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x91, 0x4B, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE7, 0xF7, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xE7, 0xF6, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE7, 0xF5, /* 0xCC-0xCF */
+	0xEE, 0xB6, 0x00, 0x00, 0x96, 0x4E, 0xEE, 0xBA, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xEE, 0xB8, 0x00, 0x00, 0xEE, 0xB4, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xEE, 0xB5, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0xEE, 0xB9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x8F, 0x9B, 0x00, 0x00, 0x00, 0x00, 0xEE, 0xB3, /* 0xE4-0xE7 */
+	0x00, 0x00, 0xE7, 0xF8, 0x95, 0xDD, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x89, 0x73, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x95, 0x65, 0x92, 0x92, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x8B, 0x98, 0xED, 0x49, 0xE7, 0xFA, 0xEE, 0xBD, /* 0xF8-0xFB */
+	0x8D, 0x7C, 0x00, 0x00, 0x00, 0x00, 0xEE, 0xC0, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_93[512] = {
+	0x00, 0x00, 0x00, 0x00, 0xEE, 0xC2, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x8E, 0x4B, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE7, 0xF9, /* 0x0C-0x0F */
+	0x90, 0x8D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x90, 0x8E, 0xE8, 0x40, 0xE8, 0x42, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0xEE, 0xC1, 0xEE, 0xBF, 0x00, 0x00, /* 0x1C-0x1F */
+	0x8F, 0xF9, 0xEE, 0xBC, 0xE8, 0x41, 0xE8, 0x43, /* 0x20-0x23 */
+	0x00, 0x00, 0xEE, 0xBB, 0x8B, 0xD1, 0x00, 0x00, /* 0x24-0x27 */
+	0x95, 0x64, 0x00, 0x00, 0x00, 0x00, 0x8E, 0xE0, /* 0x28-0x2B */
+	0x98, 0x42, 0x00, 0x00, 0xE7, 0xFC, 0x8D, 0xF6, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x98, 0x5E, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0xE8, 0x45, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xE8, 0x44, 0xE8, 0x46, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0xE7, 0xFB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0xED, 0x42, 0x00, 0x00, 0x00, 0x00, 0x93, 0xE7, /* 0x48-0x4B */
+	0x00, 0x00, 0x93, 0x74, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x92, 0xD5, 0x00, 0x00, 0xE8, 0x4B, 0xEE, 0xC4, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x92, 0x62, /* 0x58-0x5B */
+	0xE8, 0x47, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0xE8, 0x48, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x8C, 0x4C, 0x00, 0x00, 0xE8, 0x4A, 0x00, 0x00, /* 0x6C-0x6F */
+	0xEE, 0xC3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x8C, 0xAE, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0xE8, 0x49, 0x00, 0x00, 0x8F, 0xDF, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x8A, 0x99, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0xE8, 0x4F, 0x00, 0x00, 0x8D, 0xBD, 0x91, 0x99, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x92, 0xC8, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xEE, 0xC5, 0x00, 0x00, 0x00, 0x00, 0x8A, 0x5A, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0xE8, 0x4D, 0xE8, 0x4E, 0x92, 0xC1, 0x00, 0x00, /* 0xAC-0xAF */
+	0xE8, 0x4C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xE8, 0x50, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE8, 0x56, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0xEE, 0xC6, 0x00, 0x00, /* 0xC4-0xC7 */
+	0xE8, 0x59, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0xE8, 0x58, 0x93, 0x4C, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0xE8, 0x51, 0xE8, 0x52, /* 0xD4-0xD7 */
+	0xE8, 0x55, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0xE8, 0x57, 0xEE, 0xC7, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x8B, 0xBE, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0xE8, 0x5A, 0xE8, 0x54, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xE8, 0x53, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xEE, 0xC8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_94[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE8, 0x5E, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE8, 0x5F, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0xE8, 0x60, 0x00, 0x00, 0x00, 0x00, 0xE8, 0x5D, /* 0x10-0x13 */
+	0xE8, 0x5C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x8F, 0xE0, 0x93, 0xA8, 0xE8, 0x5B, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0xE8, 0x64, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE8, 0x62, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0xEE, 0xC9, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0xE8, 0x63, 0xE8, 0x61, 0x00, 0x00, /* 0x34-0x37 */
+	0x91, 0xF6, 0x00, 0x00, 0xE8, 0x65, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0xE8, 0x66, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0xE8, 0x68, 0xEE, 0xCA, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0xEE, 0xCB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x8A, 0xD3, 0xE8, 0x67, 0x96, 0xF8, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0xE8, 0x73, 0xE8, 0x69, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0xE8, 0x6C, 0x00, 0x00, /* 0x5C-0x5F */
+	0xE8, 0x6A, 0x00, 0x00, 0xE8, 0x6B, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0xE8, 0x6D, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0xE8, 0x6F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0xE8, 0x70, 0x00, 0x00, 0xE8, 0x71, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0xE8, 0x74, 0xE8, 0x72, 0xE8, 0x75, 0xE8, 0x77, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xE8, 0x76, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+};
+
+static unsigned char u2c_95[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x92, 0xB7, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x96, 0xE5, 0x00, 0x00, 0xE8, 0x78, 0x91, 0x4D, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE8, 0x79, /* 0x84-0x87 */
+	0x00, 0x00, 0x95, 0xC2, 0xE8, 0x7A, 0x8A, 0x4A, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x89, 0x5B, /* 0x8C-0x8F */
+	0x00, 0x00, 0x8A, 0xD5, 0xEE, 0xCC, 0x8A, 0xD4, /* 0x90-0x93 */
+	0xE8, 0x7B, 0x00, 0x00, 0xE8, 0x7C, 0x00, 0x00, /* 0x94-0x97 */
+	0xE8, 0x7D, 0xE8, 0x7E, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0xE8, 0x80, 0x00, 0x00, 0x8A, 0xD6, 0x8A, 0x74, /* 0xA0-0xA3 */
+	0x8D, 0x7D, 0x94, 0xB4, 0x00, 0x00, 0xE8, 0x82, /* 0xA4-0xA7 */
+	0xE8, 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0xE8, 0x83, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0x7B, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xE8, 0x86, 0x00, 0x00, 0xE8, 0x85, /* 0xB8-0xBB */
+	0xE8, 0x84, 0x00, 0x00, 0xE8, 0x87, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE8, 0x8A, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0xC5, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0xE8, 0x88, 0x00, 0x00, /* 0xC8-0xCB */
+	0xE8, 0x8C, 0xE8, 0x8B, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xE8, 0x8E, 0xE8, 0x8D, 0xE8, 0x8F, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x93, 0xAC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0xE8, 0x90, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0xE8, 0x91, 0xE8, 0x93, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xE8, 0x92, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+};
+
+static unsigned char u2c_96[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x95, 0x8C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0xE8, 0x94, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0xE8, 0x95, 0x00, 0x00, 0x8D, 0xE3, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0xE8, 0x96, 0xE8, 0x97, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x96, 0x68, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x91, 0x6A, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0xA2, /* 0x3C-0x3F */
+	0x91, 0xC9, 0x00, 0x00, 0xE8, 0x98, 0x00, 0x00, /* 0x40-0x43 */
+	0x95, 0x8D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE8, 0x9B, /* 0x48-0x4B */
+	0xE8, 0x99, 0x8D, 0x7E, 0x00, 0x00, 0xE8, 0x9A, /* 0x4C-0x4F */
+	0x8C, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x95, 0xC3, /* 0x58-0x5B */
+	0xE8, 0x9D, 0xE8, 0x9F, 0xE8, 0x9E, 0xE8, 0xA0, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0x40, 0x90, 0x77, /* 0x60-0x63 */
+	0x8F, 0x9C, 0x8A, 0xD7, 0xE8, 0xA1, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x94, 0x86, 0x00, 0x00, /* 0x68-0x6B */
+	0xE8, 0xA3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x89, 0x41, 0x00, 0x00, 0xE8, 0xA2, 0x92, 0xC2, /* 0x70-0x73 */
+	0x00, 0x00, 0x97, 0xCB, 0x93, 0xA9, 0xE8, 0x9C, /* 0x74-0x77 */
+	0x97, 0xA4, 0x00, 0x00, 0x8C, 0xAF, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x97, 0x7A, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x8B, 0xF7, 0x97, 0xB2, 0x00, 0x00, /* 0x84-0x87 */
+	0x8C, 0x47, 0x00, 0x00, 0x91, 0xE0, 0xE4, 0x40, /* 0x88-0x8B */
+	0x00, 0x00, 0xE8, 0xA4, 0x8A, 0x4B, 0x90, 0x8F, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x8A, 0x75, 0xE8, 0xA6, 0x00, 0x00, 0xE8, 0xA7, /* 0x94-0x97 */
+	0xE8, 0xA5, 0x8C, 0x84, 0x00, 0x00, 0x8D, 0xDB, /* 0x98-0x9B */
+	0x8F, 0xE1, 0xEE, 0xCF, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x89, 0x42, 0x00, 0x00, 0x00, 0x00, 0x97, 0xD7, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE8, 0xA9, /* 0xA4-0xA7 */
+	0xE7, 0xAC, 0x00, 0x00, 0xE8, 0xA8, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEE, 0xD0, /* 0xAC-0xAF */
+	0xE8, 0xAC, 0xE8, 0xAA, 0xE8, 0xAB, 0x00, 0x00, /* 0xB0-0xB3 */
+	0xE8, 0xAD, 0x00, 0x00, 0xE8, 0xAE, 0x97, 0xEA, /* 0xB4-0xB7 */
+	0xE8, 0xAF, 0xE8, 0xB0, 0x00, 0x00, 0x90, 0xC7, /* 0xB8-0xBB */
+	0x94, 0xB9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x90, 0x9D, 0x8A, 0xE5, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x97, 0x59, 0x89, 0xEB, 0x8F, 0x57, 0x8C, 0xD9, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xE8, 0xB3, 0x00, 0x00, 0xE8, 0xB2, /* 0xC8-0xCB */
+	0x8E, 0x93, 0xE8, 0xB4, 0xE8, 0xB1, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x8E, 0x47, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xE8, 0xB8, 0xE5, 0xAB, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x99, 0xD4, 0x00, 0x00, 0x90, 0x97, /* 0xD8-0xDB */
+	0xE8, 0xB6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x97, 0xA3, 0x93, 0xEF, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x89, 0x4A, 0x00, 0x00, 0x90, 0xE1, 0x8E, 0xB4, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x95, 0xB5, 0x00, 0x00, 0x89, 0x5F, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x97, 0xEB, 0x97, 0x8B, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xE8, 0xB9, 0x00, 0x00, 0x93, 0x64, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_97[512] = {
+	0x8E, 0xF9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0xE8, 0xBA, 0x00, 0x00, 0xE8, 0xBB, 0x90, 0x6B, /* 0x04-0x07 */
+	0xE8, 0xBC, 0x00, 0x00, 0x97, 0xEC, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0xE8, 0xB7, 0xE8, 0xBE, 0xE8, 0xC0, /* 0x0C-0x0F */
+	0x00, 0x00, 0xE8, 0xBF, 0x00, 0x00, 0xE8, 0xBD, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xE8, 0xC1, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0xE8, 0xC2, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x91, 0x9A, 0x00, 0x00, 0x89, 0xE0, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0xE8, 0xC3, 0x00, 0x00, 0x00, 0x00, 0x96, 0xB6, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xE8, 0xC4, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xE8, 0xC5, 0x00, 0x00, 0x98, 0x49, 0xEE, 0xD1, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x9E, 0x50, 0xE8, 0xC6, 0x00, 0x00, 0xEE, 0xD2, /* 0x38-0x3B */
+	0x00, 0x00, 0xE8, 0xC7, 0xE8, 0xC8, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0xE8, 0xCC, 0xEE, 0xD3, /* 0x40-0x43 */
+	0xE8, 0xC9, 0x00, 0x00, 0xE8, 0xCA, 0x00, 0x00, /* 0x44-0x47 */
+	0xE8, 0xCB, 0xE8, 0xCD, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0xEE, 0xD4, 0x00, 0x00, 0xEE, 0xD5, /* 0x4C-0x4F */
+	0x00, 0x00, 0xEE, 0xD6, 0x90, 0xC2, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0xEE, 0xD7, 0x96, 0xF5, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x90, 0xC3, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0xE8, 0xCE, 0x00, 0x00, 0x94, 0xF1, 0x00, 0x00, /* 0x5C-0x5F */
+	0xE8, 0xCF, 0xEA, 0x72, 0x96, 0xCA, 0x00, 0x00, /* 0x60-0x63 */
+	0xE8, 0xD0, 0x00, 0x00, 0xE8, 0xD1, 0x00, 0x00, /* 0x64-0x67 */
+	0xE8, 0xD2, 0x8A, 0x76, 0x00, 0x00, 0xE8, 0xD4, /* 0x68-0x6B */
+	0x00, 0x00, 0x90, 0x78, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0xE8, 0xD5, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x8C, 0x43, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0xE8, 0xD6, 0xE8, 0xDA, 0x00, 0x00, /* 0x78-0x7B */
+	0xE8, 0xD8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xE8, 0xD9, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x8A, 0x93, 0xE8, 0xD7, 0xE8, 0xDB, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE8, 0xDC, /* 0x88-0x8B */
+	0x00, 0x00, 0x88, 0xC6, 0x00, 0x00, 0xE8, 0xDD, /* 0x8C-0x8F */
+	0xE8, 0xDE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x8F, 0xE2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0xE8, 0xDF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x8B, 0x66, 0x00, 0x00, 0x00, 0x00, 0xE8, 0xE2, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0xE8, 0xE1, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xE8, 0xE0, 0x00, 0x00, 0x00, 0x00, 0xE6, 0x91, /* 0xA8-0xAB */
+	0x00, 0x00, 0x95, 0xDA, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE8, 0xE3, /* 0xB0-0xB3 */
+	0xE8, 0xE4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE8, 0xE5, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0xE8, 0xE6, 0x00, 0x00, /* 0xC4-0xC7 */
+	0xE8, 0xE7, 0x00, 0x00, 0x00, 0x00, 0xE8, 0xE8, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8A, 0xD8, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0xE8, 0xE9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0xE8, 0xEA, 0x94, 0x42, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0xE8, 0xEC, 0x89, 0xB9, /* 0xF0-0xF3 */
+	0x00, 0x00, 0xE8, 0xEF, 0xE8, 0xEE, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x89, 0x43, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8B, 0xBF, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_98[512] = {
+	0x00, 0x00, 0x95, 0xC5, 0x92, 0xB8, 0x8D, 0xA0, /* 0x00-0x03 */
+	0x00, 0x00, 0x8D, 0x80, 0x8F, 0x87, 0x00, 0x00, /* 0x04-0x07 */
+	0x90, 0x7B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0xE8, 0xF1, 0x00, 0x00, 0x00, 0x00, 0xE8, 0xF0, /* 0x0C-0x0F */
+	0x97, 0x61, 0x8A, 0xE6, 0x94, 0xD0, 0x93, 0xDA, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x90, 0x9C, /* 0x14-0x17 */
+	0x97, 0xCC, 0x00, 0x00, 0x8C, 0x7A, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0xE8, 0xF4, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0xE8, 0xF3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x96, 0x6A, 0x93, 0xAA, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x89, 0x6F, 0x00, 0x00, 0x00, 0x00, 0xE8, 0xF5, /* 0x34-0x37 */
+	0xE8, 0xF2, 0x00, 0x00, 0x00, 0x00, 0x95, 0x70, /* 0x38-0x3B */
+	0x97, 0x8A, 0xE8, 0xF6, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xE8, 0xF7, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE8, 0xF9, /* 0x48-0x4B */
+	0x91, 0xE8, 0x8A, 0x7A, 0x8A, 0x7B, 0xE8, 0xF8, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x8A, 0xE7, 0x8C, 0xB0, 0x00, 0x00, 0xEE, 0xD8, /* 0x54-0x57 */
+	0x8A, 0xE8, 0x00, 0x00, 0x00, 0x00, 0x93, 0x5E, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x97, 0xDE, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0xEE, 0xD9, 0x00, 0x00, 0x8C, 0xDA, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE8, 0xFA, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE8, 0xFB, /* 0x6C-0x6F */
+	0xE8, 0xFC, 0xE9, 0x40, 0x00, 0x00, 0xE9, 0x42, /* 0x70-0x73 */
+	0xE9, 0x41, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x95, 0x97, 0x00, 0x00, 0xE9, 0x43, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE9, 0x44, /* 0xAC-0xAF */
+	0x00, 0x00, 0xE9, 0x45, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0x46, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE9, 0x48, /* 0xC0-0xC3 */
+	0xE9, 0x47, 0x00, 0x00, 0xE9, 0x49, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x94, 0xF2, /* 0xD8-0xDB */
+	0xE3, 0xCA, 0x00, 0x00, 0x00, 0x00, 0x90, 0x48, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x8B, 0x51, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0xE9, 0x4A, 0x00, 0x00, 0xE9, 0x4B, /* 0xE8-0xEB */
+	0x00, 0x00, 0x99, 0xAA, 0x9F, 0x5A, 0x94, 0xD1, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x88, 0xF9, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x88, 0xB9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x8E, 0x94, 0x96, 0x4F, 0x8F, 0xFC, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_99[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE9, 0x4C, /* 0x00-0x03 */
+	0x00, 0x00, 0x96, 0xDD, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xE9, 0x4D, 0x97, 0x7B, 0x00, 0x00, /* 0x08-0x0B */
+	0x89, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x8E, 0x60, 0x00, 0x00, 0xE9, 0x4E, 0x89, 0xEC, /* 0x10-0x13 */
+	0xE9, 0x4F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0xE9, 0x50, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0xE9, 0x52, 0xE9, 0x53, 0x00, 0x00, /* 0x1C-0x1F */
+	0xE9, 0x55, 0xE9, 0x51, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0xE9, 0x54, 0x00, 0x00, 0x00, 0x00, 0xEE, 0xDC, /* 0x24-0x27 */
+	0x8A, 0xD9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0xE9, 0x56, 0x00, 0x00, 0xE9, 0x57, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0xE9, 0x58, 0xE9, 0x59, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0x5A, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0xE9, 0x5C, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0xE9, 0x5B, 0x00, 0x00, 0xE9, 0x5E, /* 0x48-0x4B */
+	0xE9, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0xE9, 0x5D, 0xE9, 0x5F, 0xE9, 0x60, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0xE9, 0x62, 0x00, 0x00, 0x8B, 0xC0, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x8E, 0xF1, 0xE9, 0x63, /* 0x94-0x97 */
+	0xE9, 0x64, 0x8D, 0x81, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0xEE, 0xDE, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xE9, 0x65, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x8A, 0x5D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x94, 0x6E, 0xE9, 0x66, 0xE9, 0x67, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x92, 0x79, /* 0xB0-0xB3 */
+	0x93, 0xE9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0xE9, 0x68, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x94, 0x9D, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x91, 0xCA, 0x89, 0x77, 0x8B, 0xEC, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x8B, 0xED, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x92, 0x93, 0xE9, 0x6D, 0x8B, 0xEE, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x89, 0xED, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xE9, 0x6C, 0x00, 0x00, 0x00, 0x00, 0xE9, 0x6A, /* 0xD8-0xDB */
+	0x00, 0x00, 0xE9, 0x6B, 0x00, 0x00, 0xE9, 0x69, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0x77, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0xE9, 0x6E, 0xE9, 0x6F, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0xE9, 0x70, 0xE9, 0x71, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xE9, 0x73, 0x00, 0x00, 0x00, 0x00, 0xE9, 0x72, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8F, 0x78, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_9A[512] = {
+	0x00, 0x00, 0xE9, 0x74, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0xE9, 0x76, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x8B, 0x52, 0xE9, 0x75, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x91, 0x9B, 0x8C, 0xB1, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0xE9, 0x78, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x91, 0xCB, 0x00, 0x00, 0x00, 0x00, 0xE9, 0x79, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x93, 0xAB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE9, 0x7A, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0x80, 0x00, 0x00, /* 0x3C-0x3F */
+	0xE9, 0x7D, 0x00, 0x00, 0xE9, 0x7C, 0xE9, 0x7E, /* 0x40-0x43 */
+	0x00, 0x00, 0xE9, 0x7B, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0xE9, 0x82, 0xEE, 0xDF, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0xE9, 0x81, 0x00, 0x00, 0xE9, 0x84, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x8B, 0xC1, 0xE9, 0x83, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE9, 0x85, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0x86, 0x00, 0x00, /* 0x60-0x63 */
+	0xE9, 0x88, 0xE9, 0x87, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0xE9, 0x89, 0xE9, 0x8B, 0xE9, 0x8A, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x8D, 0x9C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0xE9, 0x8C, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0xE9, 0x8D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x8A, 0x5B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0xE9, 0x8E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0xE9, 0x8F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x90, 0x91, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE9, 0x90, /* 0xCC-0xCF */
+	0x00, 0x00, 0xE9, 0x91, 0x00, 0x00, 0xE9, 0x92, /* 0xD0-0xD3 */
+	0xE9, 0x93, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x8D, 0x82, 0xEE, 0xE0, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0xEE, 0xE1, 0x00, 0x00, 0xE9, 0x94, 0xE9, 0x95, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0x96, 0xE9, 0x97, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0x98, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x94, 0xAF, 0xE9, 0x9A, /* 0xE8-0xEB */
+	0x00, 0x00, 0x95, 0x45, 0xE9, 0x9B, 0xE9, 0x99, /* 0xEC-0xEF */
+	0x00, 0x00, 0xE9, 0x9D, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xE9, 0x9C, 0x00, 0x00, 0x00, 0x00, 0xE9, 0x9E, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE9, 0x9F, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_9B[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xA0, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0xE9, 0xA1, 0x00, 0x00, 0xE9, 0xA2, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE9, 0xA3, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xA4, 0xE9, 0xA5, /* 0x20-0x23 */
+	0x00, 0x00, 0xE9, 0xA6, 0x00, 0x00, 0xE9, 0xA7, /* 0x24-0x27 */
+	0xE9, 0xA8, 0xE9, 0xA9, 0xE9, 0xAA, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xAB, 0xE9, 0xAC, /* 0x2C-0x2F */
+	0x00, 0x00, 0x9F, 0x54, 0xE9, 0xAD, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xF6, /* 0x38-0x3B */
+	0x8B, 0x53, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x8A, 0x40, 0x8D, 0xB0, 0xE9, 0xAF, /* 0x40-0x43 */
+	0xE9, 0xAE, 0x96, 0xA3, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0xE9, 0xB1, 0xE9, 0xB2, 0xE9, 0xB0, /* 0x4C-0x4F */
+	0x00, 0x00, 0xE9, 0xB3, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x96, 0x82, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0xE9, 0xB4, 0x00, 0x00, 0x8B, 0x9B, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x98, 0x44, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0xEE, 0xE3, 0x00, 0x00, /* 0x70-0x73 */
+	0xE9, 0xB5, 0xEE, 0xE2, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE9, 0xB7, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x88, 0xBC, 0xEE, 0xE4, /* 0x8C-0x8F */
+	0x00, 0x00, 0xE9, 0xB8, 0x95, 0xA9, 0xE9, 0xB6, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xB9, 0xE9, 0xBA, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE9, 0xBB, /* 0x9C-0x9F */
+	0xE9, 0xBC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xE9, 0xBD, 0x00, 0x00, 0x96, 0x8E, 0x8E, 0x4C, /* 0xA8-0xAB */
+	0x00, 0x00, 0x8D, 0xF8, 0x91, 0x4E, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0xEE, 0xE5, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0xE9, 0xBE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xE9, 0xC1, 0x00, 0x00, 0xEE, 0xE6, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0xE9, 0xBF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xC2, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x8C, 0xEF, 0xE9, 0xC0, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE9, 0xC3, /* 0xCC-0xCF */
+	0x00, 0x00, 0xE9, 0xC4, 0xE9, 0xC5, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xE9, 0xC9, 0x00, 0x00, 0x8E, 0x49, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x91, 0xE2, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0xE9, 0xCA, 0xE9, 0xC7, 0xE9, 0xC6, /* 0xE0-0xE3 */
+	0xE9, 0xC8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x8C, 0x7E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0xE9, 0xCE, 0xE9, 0xCD, 0xE9, 0xCC, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x88, 0xB1, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+};
+
+static unsigned char u2c_9C[512] = {
+	0xEE, 0xE7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0xE9, 0xD8, 0x00, 0x00, 0xE9, 0xD4, 0x00, 0x00, /* 0x04-0x07 */
+	0xE9, 0xD5, 0xE9, 0xD1, 0xE9, 0xD7, 0x00, 0x00, /* 0x08-0x0B */
+	0xE9, 0xD3, 0x8A, 0x82, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x98, 0x6B, 0x00, 0x00, 0xE9, 0xD6, 0xE9, 0xD2, /* 0x10-0x13 */
+	0xE9, 0xD0, 0xE9, 0xCF, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE9, 0xDA, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0xE9, 0xDD, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0xE9, 0xDC, 0xE9, 0xDB, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x95, 0x68, 0xE9, 0xD9, 0x88, 0xF1, /* 0x2C-0x2F */
+	0xE9, 0xDE, 0x00, 0x00, 0xE9, 0xE0, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x8A, 0x8F, 0xE9, 0xCB, 0x89, 0x56, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xE2, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xE1, 0xE9, 0xDF, /* 0x44-0x47 */
+	0x92, 0x4C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x96, 0x90, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x97, 0xD8, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xE3, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0xE9, 0xE4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE9, 0xE5, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xE6, 0x00, 0x00, /* 0x74-0x77 */
+	0xE9, 0xE7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x92, 0xB9, 0x00, 0x00, 0xE9, 0xE8, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x94, 0xB5, 0x00, 0x00, 0xE9, 0xED, /* 0xE8-0xEB */
+	0xE9, 0xE9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0xE9, 0xEA, 0x00, 0x00, 0x00, 0x00, 0x96, 0x50, /* 0xF0-0xF3 */
+	0x96, 0xC2, 0x00, 0x00, 0x93, 0xCE, 0x00, 0x00, /* 0xF4-0xF7 */
+};
+
+static unsigned char u2c_9D[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE9, 0xEE, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xEF, 0x93, 0xBC, /* 0x04-0x07 */
+	0xE9, 0xEC, 0xE9, 0xEB, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0xA8, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xF7, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0xE9, 0xF6, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x89, 0x95, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE9, 0xF4, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE9, 0xF3, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xF1, 0x00, 0x00, /* 0x24-0x27 */
+	0x8A, 0x9B, 0x00, 0x00, 0xE9, 0xF0, 0x8E, 0xB0, /* 0x28-0x2B */
+	0x89, 0xA7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8D, 0x83, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xFA, 0xE9, 0xF9, /* 0x3C-0x3F */
+	0x00, 0x00, 0xE9, 0xF8, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0xE9, 0xF5, 0x00, 0x00, 0xE9, 0xFB, 0x00, 0x00, /* 0x44-0x47 */
+	0xE9, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0xEA, 0x44, 0xEA, 0x43, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0xEA, 0x45, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x89, 0x4C, 0xEA, 0x40, 0xEA, 0x41, 0x00, 0x00, /* 0x5C-0x5F */
+	0x8D, 0x94, 0x96, 0xB7, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0xEA, 0x42, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEE, 0xE9, /* 0x68-0x6B */
+	0x96, 0x51, 0x00, 0x00, 0x00, 0x00, 0xEA, 0x4A, /* 0x6C-0x6F */
+	0xEE, 0xE8, 0x00, 0x00, 0xEA, 0x46, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0xEA, 0x4B, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEA, 0x48, /* 0x84-0x87 */
+	0x00, 0x00, 0xEA, 0x47, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8C, 0x7B, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0xEA, 0x4C, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xEA, 0x4D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0xEA, 0x4E, 0x00, 0x00, 0xEA, 0x49, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE9, 0xF2, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0xEA, 0x4F, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x92, 0xDF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xEA, 0x53, 0x00, 0x00, 0xEA, 0x54, 0xEA, 0x52, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0xEA, 0x51, 0xEA, 0x57, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xEA, 0x50, 0x00, 0x00, 0xEA, 0x55, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEA, 0x56, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEA, 0x59, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xEA, 0x58, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0xEA, 0x5B, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0xEA, 0x5C, 0x00, 0x00, 0xEA, 0x5D, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x98, 0x68, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xEA, 0x5A, 0x91, 0xE9, 0x8D, 0xEB, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0xEA, 0x5E, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_9E[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0xEE, 0xEB, 0xEA, 0x5F, 0xEA, 0x60, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0xEA, 0x61, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0xEA, 0x62, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x8C, 0xB2, 0xEA, 0x63, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0xEA, 0x64, 0x00, 0x00, 0x8E, 0xAD, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xEA, 0x65, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0xEA, 0x66, 0x00, 0x00, 0x00, 0x00, 0xEA, 0x67, /* 0x88-0x8B */
+	0xEA, 0x68, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0xEA, 0x6B, 0xEA, 0x69, 0x98, 0x5B, /* 0x90-0x93 */
+	0x00, 0x00, 0xEA, 0x6A, 0x00, 0x00, 0x97, 0xED, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0xEA, 0x6C, 0x00, 0x00, 0x97, 0xD9, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xEA, 0x6D, 0x94, 0x9E, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0xEA, 0x6E, 0xEA, 0x70, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0xEA, 0x71, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xEA, 0x6F, 0x8D, 0x8D, 0x96, 0xCB, 0x96, 0x83, /* 0xB8-0xBB */
+	0x9B, 0xF5, 0x00, 0x00, 0x9F, 0x80, 0x96, 0x9B, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x89, 0xA9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0xEA, 0x73, 0x8B, 0x6F, 0xEA, 0x74, 0xEA, 0x75, /* 0xCC-0xCF */
+	0xEA, 0x76, 0xEE, 0xEC, 0x8D, 0x95, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xEA, 0x77, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xE0, 0xD2, 0x96, 0xD9, 0x00, 0x00, 0x91, 0xE1, /* 0xD8-0xDB */
+	0xEA, 0x78, 0xEA, 0x7A, 0xEA, 0x79, 0x00, 0x00, /* 0xDC-0xDF */
+	0xEA, 0x7B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xEA, 0x7C, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xEA, 0x7D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEA, 0x7E, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xEA, 0x80, 0x00, 0x00, 0xEA, 0x81, 0xEA, 0x82, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xEA, 0x83, 0x00, 0x00, 0xEA, 0x84, /* 0xF8-0xFB */
+	0xEA, 0x85, 0xEA, 0x86, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_9F[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEA, 0x87, /* 0x04-0x07 */
+	0xEA, 0x88, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x93, 0x43, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8C, 0xDB, /* 0x10-0x13 */
+	0x00, 0x00, 0xEA, 0x8A, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x91, 0x6C, 0xEA, 0x8B, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0xEA, 0x8C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x95, 0x40, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0xEA, 0x8D, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0xEA, 0x8E, 0xE2, 0x56, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0xD8, 0xE8, 0xEB, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0xEA, 0x8F, 0x00, 0x00, /* 0x50-0x53 */
+	0xEA, 0x90, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEA, 0x92, /* 0x5C-0x5F */
+	0xEA, 0x93, 0xEA, 0x94, 0x97, 0xEE, 0xEA, 0x91, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0xEA, 0x95, 0xEA, 0x96, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0xEA, 0x98, 0x00, 0x00, /* 0x68-0x6B */
+	0xEA, 0x97, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0xEA, 0x9A, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0xEA, 0x9B, 0xEA, 0x99, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x97, 0xB4, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0xEA, 0x9C, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0xEA, 0x9D, 0xE2, 0x73, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0xEA, 0x9E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+};
+
+static unsigned char u2c_DC[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+};
+
+static unsigned char u2c_F9[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0xED, 0xC4, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0xEE, 0xCD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+};
+
+static unsigned char u2c_FA[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0xED, 0x73, 0xED, 0x7E, /* 0x0C-0x0F */
+	0xED, 0x80, 0xED, 0x95, 0xED, 0xBC, 0xED, 0xCC, /* 0x10-0x13 */
+	0xED, 0xCE, 0xED, 0xF9, 0xEE, 0x42, 0xEE, 0x59, /* 0x14-0x17 */
+	0xEE, 0x61, 0xEE, 0x62, 0xEE, 0x63, 0xEE, 0x65, /* 0x18-0x1B */
+	0xEE, 0x69, 0xEE, 0x6C, 0xEE, 0x75, 0xEE, 0x81, /* 0x1C-0x1F */
+	0xEE, 0x83, 0xEE, 0x84, 0xEE, 0x8D, 0xEE, 0x95, /* 0x20-0x23 */
+	0xEE, 0x97, 0xEE, 0x98, 0xEE, 0x9B, 0xEE, 0xB7, /* 0x24-0x27 */
+	0xEE, 0xBE, 0xEE, 0xCE, 0xEE, 0xDA, 0xEE, 0xDB, /* 0x28-0x2B */
+	0xEE, 0xDD, 0xEE, 0xEA, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+};
+
+static unsigned char u2c_FF[512] = {
+	0x00, 0x00, 0x81, 0x49, 0xEE, 0xFC, 0x81, 0x94, /* 0x00-0x03 */
+	0x81, 0x90, 0x81, 0x93, 0x81, 0x95, 0xEE, 0xFB, /* 0x04-0x07 */
+	0x81, 0x69, 0x81, 0x6A, 0x81, 0x96, 0x81, 0x7B, /* 0x08-0x0B */
+	0x81, 0x43, 0x81, 0x7C, 0x81, 0x44, 0x81, 0x5E, /* 0x0C-0x0F */
+	0x82, 0x4F, 0x82, 0x50, 0x82, 0x51, 0x82, 0x52, /* 0x10-0x13 */
+	0x82, 0x53, 0x82, 0x54, 0x82, 0x55, 0x82, 0x56, /* 0x14-0x17 */
+	0x82, 0x57, 0x82, 0x58, 0x81, 0x46, 0x81, 0x47, /* 0x18-0x1B */
+	0x81, 0x83, 0x81, 0x81, 0x81, 0x84, 0x81, 0x48, /* 0x1C-0x1F */
+	0x81, 0x97, 0x82, 0x60, 0x82, 0x61, 0x82, 0x62, /* 0x20-0x23 */
+	0x82, 0x63, 0x82, 0x64, 0x82, 0x65, 0x82, 0x66, /* 0x24-0x27 */
+	0x82, 0x67, 0x82, 0x68, 0x82, 0x69, 0x82, 0x6A, /* 0x28-0x2B */
+	0x82, 0x6B, 0x82, 0x6C, 0x82, 0x6D, 0x82, 0x6E, /* 0x2C-0x2F */
+	0x82, 0x6F, 0x82, 0x70, 0x82, 0x71, 0x82, 0x72, /* 0x30-0x33 */
+	0x82, 0x73, 0x82, 0x74, 0x82, 0x75, 0x82, 0x76, /* 0x34-0x37 */
+	0x82, 0x77, 0x82, 0x78, 0x82, 0x79, 0x81, 0x6D, /* 0x38-0x3B */
+	0x81, 0x5F, 0x81, 0x6E, 0x81, 0x4F, 0x81, 0x51, /* 0x3C-0x3F */
+	0x81, 0x4D, 0x82, 0x81, 0x82, 0x82, 0x82, 0x83, /* 0x40-0x43 */
+	0x82, 0x84, 0x82, 0x85, 0x82, 0x86, 0x82, 0x87, /* 0x44-0x47 */
+	0x82, 0x88, 0x82, 0x89, 0x82, 0x8A, 0x82, 0x8B, /* 0x48-0x4B */
+	0x82, 0x8C, 0x82, 0x8D, 0x82, 0x8E, 0x82, 0x8F, /* 0x4C-0x4F */
+	0x82, 0x90, 0x82, 0x91, 0x82, 0x92, 0x82, 0x93, /* 0x50-0x53 */
+	0x82, 0x94, 0x82, 0x95, 0x82, 0x96, 0x82, 0x97, /* 0x54-0x57 */
+	0x82, 0x98, 0x82, 0x99, 0x82, 0x9A, 0x81, 0x6F, /* 0x58-0x5B */
+	0x81, 0x62, 0x81, 0x70, 0x81, 0x60, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0xA1, 0x00, 0xA2, 0x00, 0xA3, /* 0x60-0x63 */
+	0x00, 0xA4, 0x00, 0xA5, 0x00, 0xA6, 0x00, 0xA7, /* 0x64-0x67 */
+	0x00, 0xA8, 0x00, 0xA9, 0x00, 0xAA, 0x00, 0xAB, /* 0x68-0x6B */
+	0x00, 0xAC, 0x00, 0xAD, 0x00, 0xAE, 0x00, 0xAF, /* 0x6C-0x6F */
+	0x00, 0xB0, 0x00, 0xB1, 0x00, 0xB2, 0x00, 0xB3, /* 0x70-0x73 */
+	0x00, 0xB4, 0x00, 0xB5, 0x00, 0xB6, 0x00, 0xB7, /* 0x74-0x77 */
+	0x00, 0xB8, 0x00, 0xB9, 0x00, 0xBA, 0x00, 0xBB, /* 0x78-0x7B */
+	0x00, 0xBC, 0x00, 0xBD, 0x00, 0xBE, 0x00, 0xBF, /* 0x7C-0x7F */
+	
+	0x00, 0xC0, 0x00, 0xC1, 0x00, 0xC2, 0x00, 0xC3, /* 0x80-0x83 */
+	0x00, 0xC4, 0x00, 0xC5, 0x00, 0xC6, 0x00, 0xC7, /* 0x84-0x87 */
+	0x00, 0xC8, 0x00, 0xC9, 0x00, 0xCA, 0x00, 0xCB, /* 0x88-0x8B */
+	0x00, 0xCC, 0x00, 0xCD, 0x00, 0xCE, 0x00, 0xCF, /* 0x8C-0x8F */
+	0x00, 0xD0, 0x00, 0xD1, 0x00, 0xD2, 0x00, 0xD3, /* 0x90-0x93 */
+	0x00, 0xD4, 0x00, 0xD5, 0x00, 0xD6, 0x00, 0xD7, /* 0x94-0x97 */
+	0x00, 0xD8, 0x00, 0xD9, 0x00, 0xDA, 0x00, 0xDB, /* 0x98-0x9B */
+	0x00, 0xDC, 0x00, 0xDD, 0x00, 0xDE, 0x00, 0xDF, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x81, 0x91, 0x81, 0x92, 0xEE, 0xF9, 0x81, 0x50, /* 0xE0-0xE3 */
+	0xEE, 0xFA, 0x81, 0x8F, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	NULL,   NULL,   NULL,   u2c_03, u2c_04, NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	u2c_20, u2c_21, u2c_22, u2c_23, u2c_24, u2c_25, u2c_26, NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	u2c_30, NULL,   u2c_32, u2c_33, NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   u2c_4E, u2c_4F, 
+	u2c_50, u2c_51, u2c_52, u2c_53, u2c_54, u2c_55, u2c_56, u2c_57, 
+	u2c_58, u2c_59, u2c_5A, u2c_5B, u2c_5C, u2c_5D, u2c_5E, u2c_5F, 
+	u2c_60, u2c_61, u2c_62, u2c_63, u2c_64, u2c_65, u2c_66, u2c_67, 
+	u2c_68, u2c_69, u2c_6A, u2c_6B, u2c_6C, u2c_6D, u2c_6E, u2c_6F, 
+	u2c_70, u2c_71, u2c_72, u2c_73, u2c_74, u2c_75, u2c_76, u2c_77, 
+	u2c_78, u2c_79, u2c_7A, u2c_7B, u2c_7C, u2c_7D, u2c_7E, u2c_7F, 
+	u2c_80, u2c_81, u2c_82, u2c_83, u2c_84, u2c_85, u2c_86, u2c_87, 
+	u2c_88, u2c_89, u2c_8A, u2c_8B, u2c_8C, u2c_8D, u2c_8E, u2c_8F, 
+	u2c_90, u2c_91, u2c_92, u2c_93, u2c_94, u2c_95, u2c_96, u2c_97, 
+	u2c_98, u2c_99, u2c_9A, u2c_9B, u2c_9C, u2c_9D, u2c_9E, u2c_9F, 
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   u2c_DC, NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   u2c_F9, u2c_FA, NULL,   NULL,   NULL,   NULL,   u2c_FF, };
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(const wchar_t uni,
+		    unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni&0xFF;
+	unsigned char ch = (uni>>8)&0xFF;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	if (ch == 0xFF && 0x61 <= cl && cl <= 0x9F) {
+		out[0] = cl + 0x40;
+		return 1;
+	}
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset) {
+		if (boundlen < 2)
+			return -ENAMETOOLONG;
+
+		out[0] = uni2charset[cl*2];
+		out[1] = uni2charset[cl*2+1];
+		if (out[0] == 0x00 && out[1] == 0x00)
+			return -EINVAL;
+		return 2;
+	} else if ((ch == 0) && (cl <= 0x7F)) {
+		out[0] = cl;
+		return 1;
+	}
+	else
+		return -EINVAL;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen,
+		    wchar_t *uni)
+{
+	unsigned char ch, cl;
+	wchar_t *charset2uni;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	if (rawstring[0] <= 0x7F) {
+		*uni = rawstring[0];
+		return 1;
+	}
+	if (0xA1 <= rawstring[0] && rawstring[0] <= 0xDF) {
+		*uni = 0xFF00 | (rawstring[0] - 0x40);
+		return 1;
+	}
+
+	if (boundlen < 2)
+		return -ENAMETOOLONG;
+	ch = rawstring[0];
+	cl = rawstring[1];
+	charset2uni = page_charset2uni[ch];
+	if (charset2uni && cl) {
+		*uni = charset2uni[cl];
+		if (*uni == 0x0000)
+			return -EINVAL;
+		return 2;
+	}
+	else
+		return -EINVAL;
+}
+
+static struct nls_table table = {
+	"cp932",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_cp932(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_cp932(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_cp932)
+module_exit(exit_nls_cp932)
+MODULE_LICENSE("Dual BSD/GPL");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ *
+---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
diff --git a/fs/nls/nls_cp936.c b/fs/nls/nls_cp936.c
new file mode 100644
index 00000000000000..906a8baf386638
--- /dev/null
+++ b/fs/nls/nls_cp936.c
@@ -0,0 +1,11045 @@
+/*
+ * linux/fs/nls_cp936.c
+ *
+ * Charset cp936 translation tables.
+ * This translation table was generated automatically, the
+ * original table can be download from the Microsoft website.
+ * (http://www.microsoft.com/typography/unicode/unicodecp.htm)
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t c2u_81[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x4E02,0x4E04,0x4E05,0x4E06,0x4E0F,0x4E12,0x4E17,0x4E1F,/* 0x40-0x47 */
+	0x4E20,0x4E21,0x4E23,0x4E26,0x4E29,0x4E2E,0x4E2F,0x4E31,/* 0x48-0x4F */
+	0x4E33,0x4E35,0x4E37,0x4E3C,0x4E40,0x4E41,0x4E42,0x4E44,/* 0x50-0x57 */
+	0x4E46,0x4E4A,0x4E51,0x4E55,0x4E57,0x4E5A,0x4E5B,0x4E62,/* 0x58-0x5F */
+	0x4E63,0x4E64,0x4E65,0x4E67,0x4E68,0x4E6A,0x4E6B,0x4E6C,/* 0x60-0x67 */
+	0x4E6D,0x4E6E,0x4E6F,0x4E72,0x4E74,0x4E75,0x4E76,0x4E77,/* 0x68-0x6F */
+	0x4E78,0x4E79,0x4E7A,0x4E7B,0x4E7C,0x4E7D,0x4E7F,0x4E80,/* 0x70-0x77 */
+	0x4E81,0xF91B,0x4E83,0x4E84,0x4E85,0x4E87,0x4E8A,0x0000,/* 0x78-0x7F */
+	
+	0x4E90,0x4E96,0x4E97,0x4E99,0x4E9C,0x4E9D,0x4E9E,0x4EA3,/* 0x80-0x87 */
+	0x4EAA,0x4EAF,0x4EB0,0x4EB1,0x4EB4,0x4EB6,0x4EB7,0x4EB8,/* 0x88-0x8F */
+	0x4EB9,0x4EBC,0x4EBD,0x4EBE,0x4EC8,0x4ECC,0x4ECF,0x4ED0,/* 0x90-0x97 */
+	0x4ED2,0x4EDA,0x4EDB,0x4EDC,0x4EE0,0x4EE2,0x4EE6,0x4EE7,/* 0x98-0x9F */
+	0x4EE9,0x4EED,0x4EEE,0x4EEF,0x4EF1,0x4EF4,0x4EF8,0x4EF9,/* 0xA0-0xA7 */
+	0x4EFA,0x4EFC,0x4EFE,0x4F00,0x4F02,0x4F03,0x4F04,0x4F05,/* 0xA8-0xAF */
+	0x4F06,0x4F07,0x4F08,0x4F0B,0x4F0C,0x4F12,0x4F13,0x4F14,/* 0xB0-0xB7 */
+	0x4F15,0x4F16,0x4F1C,0x4F1D,0x4F21,0x4F23,0x4F28,0x4F29,/* 0xB8-0xBF */
+	0x4F2C,0x4F2D,0x4F2E,0x4F31,0x4F33,0x4F35,0x4F37,0x4F39,/* 0xC0-0xC7 */
+	0x4F3B,0x4F3E,0x4F3F,0x4F40,0x4F41,0x4F42,0x4F44,0x4F45,/* 0xC8-0xCF */
+	0x4F47,0x4F48,0x4F49,0x4F4A,0x4F4B,0x4F4C,0x4F52,0x4F54,/* 0xD0-0xD7 */
+	0x4F56,0x4F61,0x4F62,0x4F66,0x4F68,0x4F6A,0x4F6B,0x4F6D,/* 0xD8-0xDF */
+	0x4F6E,0x4F71,0x4F72,0x4F75,0x4F77,0x4F78,0x4F79,0x4F7A,/* 0xE0-0xE7 */
+	0x4F7D,0x4F80,0x4F81,0x4F82,0x4F85,0xF92D,0x4F87,0x4F8A,/* 0xE8-0xEF */
+	0x4F8C,0x4F8E,0x4F90,0x4F92,0x4F93,0x4F95,0x4F96,0x4F98,/* 0xF0-0xF7 */
+	0x4F99,0x4F9A,0x4F9C,0x4F9E,0x4F9F,0x4FA1,0x4FA2,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_82[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x4FA4,0x4FAB,0x4FAD,0x4FB0,0x4FB1,0x4FB2,0x4FB3,0x4FB4,/* 0x40-0x47 */
+	0x4FB6,0x4FB7,0x4FB8,0x4FB9,0x4FBA,0x4FBB,0x4FBC,0x4FBD,/* 0x48-0x4F */
+	0x4FBE,0x4FC0,0x4FC1,0x4FC2,0x4FC6,0x4FC7,0x4FC8,0x4FC9,/* 0x50-0x57 */
+	0x4FCB,0x4FCC,0x4FCD,0x4FD2,0x4FD3,0x4FD4,0x4FD5,0x4FD6,/* 0x58-0x5F */
+	0x4FD9,0x4FDB,0x4FE0,0x4FE2,0x4FE4,0x4FE5,0x4FE7,0x4FEB,/* 0x60-0x67 */
+	0x4FEC,0x4FF0,0x4FF2,0x4FF4,0x4FF5,0x4FF6,0x4FF7,0x4FF9,/* 0x68-0x6F */
+	0x4FFB,0x4FFC,0x4FFD,0x4FFF,0x5000,0x5001,0x5002,0x5003,/* 0x70-0x77 */
+	0x5004,0x5005,0x5006,0x5007,0x5008,0x5009,0x500A,0x0000,/* 0x78-0x7F */
+	
+	0x500B,0x500E,0x5010,0x5011,0x5013,0x5015,0x5016,0x5017,/* 0x80-0x87 */
+	0x501B,0x501D,0x501E,0x5020,0x5022,0x5023,0x5024,0x5027,/* 0x88-0x8F */
+	0xF9D4,0x502F,0x5030,0x5031,0x5032,0x5033,0x5034,0x5035,/* 0x90-0x97 */
+	0x5036,0x5037,0x5038,0x5039,0x503B,0x503D,0x503F,0x5040,/* 0x98-0x9F */
+	0x5041,0x5042,0x5044,0x5045,0x5046,0x5049,0x504A,0x504B,/* 0xA0-0xA7 */
+	0x504D,0x5050,0x5051,0x5052,0x5053,0x5054,0x5056,0x5057,/* 0xA8-0xAF */
+	0x5058,0x5059,0x505B,0x505D,0x505E,0x505F,0x5060,0x5061,/* 0xB0-0xB7 */
+	0x5062,0x5063,0x5064,0x5066,0x5067,0x5068,0x5069,0x506A,/* 0xB8-0xBF */
+	0x506B,0x506D,0x506E,0x506F,0x5070,0x5071,0x5072,0x5073,/* 0xC0-0xC7 */
+	0x5074,0x5075,0x5078,0x5079,0x507A,0x507C,0x507D,0x5081,/* 0xC8-0xCF */
+	0x5082,0x5083,0x5084,0x5086,0x5087,0x5089,0x508A,0x508B,/* 0xD0-0xD7 */
+	0x508C,0x508E,0x508F,0x5090,0x5091,0x5092,0x5093,0x5094,/* 0xD8-0xDF */
+	0x5095,0x5096,0x5097,0x5098,0x5099,0x509A,0x509B,0x509C,/* 0xE0-0xE7 */
+	0x509D,0x509E,0x509F,0x50A0,0x50A1,0x50A2,0x50A4,0x50A6,/* 0xE8-0xEF */
+	0x50AA,0x50AB,0x50AD,0x50AE,0x50AF,0x50B0,0x50B1,0x50B3,/* 0xF0-0xF7 */
+	0x50B4,0x50B5,0x50B6,0x50B7,0x50B8,0x50B9,0x50BC,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_83[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x50BD,0x50BE,0x50BF,0x50C0,0x50C1,0x50C2,0x50C3,0x50C4,/* 0x40-0x47 */
+	0x50C5,0x50C6,0x50C7,0x50C8,0x50C9,0x50CA,0x50CB,0x50CC,/* 0x48-0x4F */
+	0x50CD,0x50CE,0x50D0,0x50D1,0x50D2,0x50D3,0x50D4,0x50D5,/* 0x50-0x57 */
+	0x50D7,0x50D8,0x50D9,0x50DB,0x50DC,0x50DD,0x50DE,0x50DF,/* 0x58-0x5F */
+	0x50E0,0x50E1,0x50E2,0x50E3,0x50E4,0x50E5,0x50E8,0x50E9,/* 0x60-0x67 */
+	0x50EA,0x50EB,0x50EF,0x50F0,0x50F1,0x50F2,0x50F4,0x50F6,/* 0x68-0x6F */
+	0x50F7,0x50F8,0x50F9,0x50FA,0x50FC,0x50FD,0x50FE,0x50FF,/* 0x70-0x77 */
+	0x5100,0x5101,0x5102,0x5103,0x5104,0x5105,0x5108,0x0000,/* 0x78-0x7F */
+	
+	0x5109,0x510A,0x510C,0x510D,0x510E,0x510F,0x5110,0x5111,/* 0x80-0x87 */
+	0x5113,0x5114,0x5115,0x5116,0x5117,0x5118,0x5119,0x511A,/* 0x88-0x8F */
+	0x511B,0x511C,0x511D,0x511E,0x511F,0x5120,0x5122,0x5123,/* 0x90-0x97 */
+	0x5124,0x5125,0x5126,0x5127,0x5128,0x5129,0x512A,0x512B,/* 0x98-0x9F */
+	0x512C,0x512D,0x512E,0x512F,0x5130,0x5131,0x5132,0x5133,/* 0xA0-0xA7 */
+	0x5134,0x5135,0x5136,0x5137,0x5138,0x5139,0x513A,0x513B,/* 0xA8-0xAF */
+	0x513C,0x513D,0x513E,0x5142,0x5147,0x514A,0x514C,0x514E,/* 0xB0-0xB7 */
+	0x514F,0x5150,0x5152,0x5153,0x5157,0x5158,0x5159,0x515B,/* 0xB8-0xBF */
+	0x515D,0x515E,0x515F,0x5160,0x5161,0x5163,0x5164,0x5166,/* 0xC0-0xC7 */
+	0x5167,0xF978,0x516A,0x516F,0x5172,0x517A,0x517E,0x517F,/* 0xC8-0xCF */
+	0x5183,0x5184,0x5186,0x5187,0x518A,0x518B,0x518E,0x518F,/* 0xD0-0xD7 */
+	0x5190,0x5191,0x5193,0x5194,0x5198,0x519A,0x519D,0x519E,/* 0xD8-0xDF */
+	0x519F,0x51A1,0x51A3,0x51A6,0x51A7,0x51A8,0x51A9,0x51AA,/* 0xE0-0xE7 */
+	0x51AD,0x51AE,0x51B4,0x51B8,0x51B9,0x51BA,0x51BE,0x51BF,/* 0xE8-0xEF */
+	0x51C1,0x51C2,0x51C3,0x51C5,0x51C8,0x51CA,0x51CD,0x51CE,/* 0xF0-0xF7 */
+	0x51D0,0x51D2,0x51D3,0x51D4,0x51D5,0x51D6,0x51D7,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_84[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x51D8,0x51D9,0x51DA,0xF954,0xFA15,0x51DF,0x51E2,0x51E3,/* 0x40-0x47 */
+	0x51E5,0x51E6,0x51E7,0x51E8,0x51E9,0x51EA,0x51EC,0x51EE,/* 0x48-0x4F */
+	0x51F1,0x51F2,0x51F4,0x51F7,0x51FE,0x5204,0x5205,0x5209,/* 0x50-0x57 */
+	0x520B,0x520C,0x520F,0x5210,0x5213,0x5214,0x5215,0x521C,/* 0x58-0x5F */
+	0x521E,0x521F,0x5221,0x5222,0x5223,0x5225,0x5226,0x5227,/* 0x60-0x67 */
+	0x522A,0x522C,0x522F,0x5231,0x5232,0x5234,0x5235,0x523C,/* 0x68-0x6F */
+	0x523E,0x5244,0x5245,0x5246,0x5247,0x5248,0x5249,0x524B,/* 0x70-0x77 */
+	0x524E,0x524F,0x5252,0x5253,0x5255,0x5257,0x5258,0x0000,/* 0x78-0x7F */
+	
+	0x5259,0x525A,0x525B,0x525D,0x525F,0x5260,0x5262,0x5263,/* 0x80-0x87 */
+	0x5264,0x5266,0x5268,0x526B,0x526C,0x526D,0x526E,0x5270,/* 0x88-0x8F */
+	0x5271,0x5273,0x5274,0x5275,0x5276,0x5277,0x5278,0x5279,/* 0x90-0x97 */
+	0x527A,0x527B,0x527C,0x527E,0x5280,0x5283,0x5284,0x5285,/* 0x98-0x9F */
+	0x5286,0x5287,0xF9C7,0x528A,0x528B,0x528C,0x528D,0x528E,/* 0xA0-0xA7 */
+	0x528F,0x5291,0x5292,0x5294,0x5295,0x5296,0x5297,0x5298,/* 0xA8-0xAF */
+	0x5299,0x529A,0x529C,0x52A4,0x52A5,0x52A6,0x52A7,0x52AE,/* 0xB0-0xB7 */
+	0x52AF,0x52B0,0x52B4,0x52B5,0x52B6,0x52B7,0x52B8,0x52B9,/* 0xB8-0xBF */
+	0x52BA,0x52BB,0x52BC,0x52BD,0x52C0,0x52C1,0x52C2,0x52C4,/* 0xC0-0xC7 */
+	0x52C5,0x52C6,0x52C8,0x52CA,0x52CC,0x52CD,0x52CE,0x52CF,/* 0xC8-0xCF */
+	0x52D1,0x52D3,0x52D4,0x52D5,0x52D7,0x52D9,0x52DA,0x52DB,/* 0xD0-0xD7 */
+	0x52DC,0x52DD,0xF92F,0x52E0,0x52E1,0x52E2,0x52E3,0x52E5,/* 0xD8-0xDF */
+	0x52E6,0x52E7,0x52E8,0x52E9,0x52EA,0x52EB,0x52EC,0x52ED,/* 0xE0-0xE7 */
+	0x52EE,0x52EF,0x52F1,0x52F2,0x52F3,0x52F4,0xF97F,0x52F6,/* 0xE8-0xEF */
+	0x52F7,0x52F8,0x52FB,0x52FC,0x52FD,0x5301,0x5302,0x5303,/* 0xF0-0xF7 */
+	0x5304,0x5307,0x5309,0x530A,0x530B,0x530C,0x530E,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_85[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x5311,0x5312,0x5313,0x5314,0x5318,0x531B,0x531C,0x531E,/* 0x40-0x47 */
+	0x531F,0x5322,0x5324,0x5325,0x5327,0x5328,0x5329,0x532B,/* 0x48-0x4F */
+	0x532C,0x532D,0x532F,0x5330,0x5331,0x5332,0x5333,0x5334,/* 0x50-0x57 */
+	0x5335,0x5336,0x5337,0x5338,0x533C,0x533D,0x5340,0x5342,/* 0x58-0x5F */
+	0x5344,0x5346,0x534B,0x534C,0x534D,0x5350,0x5354,0x5358,/* 0x60-0x67 */
+	0x5359,0x535B,0x535D,0x5365,0x5368,0x536A,0x536C,0x536D,/* 0x68-0x6F */
+	0x5372,0x5376,0x5379,0x537B,0x537C,0x537D,0x537E,0x5380,/* 0x70-0x77 */
+	0x5381,0x5383,0x5387,0x5388,0x538A,0x538E,0x538F,0x0000,/* 0x78-0x7F */
+	
+	0x5390,0x5391,0x5392,0x5393,0x5394,0x5396,0x5397,0x5399,/* 0x80-0x87 */
+	0x539B,0x539C,0x539E,0x53A0,0x53A1,0x53A4,0x53A7,0x53AA,/* 0x88-0x8F */
+	0x53AB,0x53AC,0x53AD,0x53AF,0x53B0,0x53B1,0x53B2,0x53B3,/* 0x90-0x97 */
+	0x53B4,0x53B5,0x53B7,0x53B8,0x53B9,0x53BA,0x53BC,0x53BD,/* 0x98-0x9F */
+	0x53BE,0x53C0,0xF96B,0x53C4,0x53C5,0x53C6,0x53C7,0x53CE,/* 0xA0-0xA7 */
+	0x53CF,0x53D0,0x53D2,0x53D3,0x53D5,0x53DA,0x53DC,0x53DD,/* 0xA8-0xAF */
+	0x53DE,0x53E1,0x53E2,0x53E7,0x53F4,0x53FA,0x53FE,0x53FF,/* 0xB0-0xB7 */
+	0x5400,0x5402,0x5405,0x5407,0x540B,0x5414,0x5418,0x5419,/* 0xB8-0xBF */
+	0x541A,0x541C,0x5422,0x5424,0x5425,0x542A,0x5430,0x5433,/* 0xC0-0xC7 */
+	0x5436,0x5437,0x543A,0x543D,0x543F,0x5441,0xF980,0x5444,/* 0xC8-0xCF */
+	0x5445,0x5447,0x5449,0x544C,0x544D,0x544E,0x544F,0x5451,/* 0xD0-0xD7 */
+	0x545A,0x545D,0x545E,0x545F,0x5460,0x5461,0x5463,0x5465,/* 0xD8-0xDF */
+	0x5467,0x5469,0x546A,0x546B,0x546C,0x546D,0x546E,0x546F,/* 0xE0-0xE7 */
+	0x5470,0x5474,0x5479,0x547A,0x547E,0x547F,0x5481,0x5483,/* 0xE8-0xEF */
+	0x5485,0x5487,0x5488,0x5489,0x548A,0x548D,0x5491,0x5493,/* 0xF0-0xF7 */
+	0x5497,0x5498,0x549C,0x549E,0x549F,0x54A0,0x54A1,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_86[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x54A2,0x54A5,0x54AE,0x54B0,0x54B2,0x54B5,0x54B6,0x54B7,/* 0x40-0x47 */
+	0x54B9,0x54BA,0x54BC,0x54BE,0x54C3,0x54C5,0x54CA,0x54CB,/* 0x48-0x4F */
+	0x54D6,0x54D8,0x54DB,0x54E0,0x54E1,0x54E2,0x54E3,0x54E4,/* 0x50-0x57 */
+	0x54EB,0x54EC,0x54EF,0x54F0,0x54F1,0x54F4,0x54F5,0x54F6,/* 0x58-0x5F */
+	0x54F7,0x54F8,0x54F9,0x54FB,0x54FE,0x5500,0x5502,0x5503,/* 0x60-0x67 */
+	0x5504,0x5505,0x5508,0x550A,0x550B,0x550C,0x550D,0x550E,/* 0x68-0x6F */
+	0x5512,0x5513,0x5515,0x5516,0x5517,0x5518,0x5519,0x551A,/* 0x70-0x77 */
+	0x551C,0x551D,0x551E,0x551F,0x5521,0x5525,0x5526,0x0000,/* 0x78-0x7F */
+	
+	0x5528,0x5529,0x552B,0x552D,0x5532,0x5534,0x5535,0x5536,/* 0x80-0x87 */
+	0x5538,0x5539,0x553A,0x553B,0x553D,0x5540,0x5542,0x5545,/* 0x88-0x8F */
+	0x5547,0x5548,0x554B,0x554C,0x554D,0x554E,0x554F,0x5551,/* 0x90-0x97 */
+	0x5552,0x5553,0x5554,0x5557,0x5558,0x5559,0x555A,0x555B,/* 0x98-0x9F */
+	0x555D,0x555E,0x555F,0x5560,0x5562,0x5563,0x5568,0x5569,/* 0xA0-0xA7 */
+	0x556B,0x556F,0x5570,0x5571,0x5572,0x5573,0x5574,0x5579,/* 0xA8-0xAF */
+	0x557A,0x557D,0x557F,0x5585,0x5586,0x558C,0x558D,0x558E,/* 0xB0-0xB7 */
+	0x5590,0x5592,0x5593,0x5595,0x5596,0x5597,0x559A,0x559B,/* 0xB8-0xBF */
+	0x559E,0x55A0,0x55A1,0x55A2,0x55A3,0x55A4,0x55A5,0x55A6,/* 0xC0-0xC7 */
+	0x55A8,0x55A9,0x55AA,0x55AB,0x55AC,0x55AD,0x55AE,0x55AF,/* 0xC8-0xCF */
+	0x55B0,0x55B2,0x55B4,0x55B6,0x55B8,0x55BA,0x55BC,0x55BF,/* 0xD0-0xD7 */
+	0x55C0,0x55C1,0x55C2,0x55C3,0x55C6,0x55C7,0x55C8,0x55CA,/* 0xD8-0xDF */
+	0x55CB,0x55CE,0x55CF,0x55D0,0x55D5,0x55D7,0x55D8,0x55D9,/* 0xE0-0xE7 */
+	0x55DA,0x55DB,0x55DE,0x55E0,0x55E2,0x55E7,0x55E9,0x55ED,/* 0xE8-0xEF */
+	0x55EE,0x55F0,0x55F1,0x55F4,0x55F6,0x55F8,0x55F9,0x55FA,/* 0xF0-0xF7 */
+	0x55FB,0x55FC,0x55FF,0x5602,0x5603,0x5604,0x5605,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_87[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x5606,0x5607,0x560A,0x560B,0x560D,0x5610,0x5611,0x5612,/* 0x40-0x47 */
+	0x5613,0x5614,0x5615,0x5616,0x5617,0x5619,0x561A,0x561C,/* 0x48-0x4F */
+	0x561D,0x5620,0x5621,0x5622,0x5625,0x5626,0x5628,0x5629,/* 0x50-0x57 */
+	0x562A,0x562B,0x562E,0x562F,0x5630,0x5633,0x5635,0x5637,/* 0x58-0x5F */
+	0x5638,0x563A,0x563C,0x563D,0x563E,0x5640,0x5641,0x5642,/* 0x60-0x67 */
+	0x5643,0x5644,0x5645,0x5646,0x5647,0x5648,0x5649,0x564A,/* 0x68-0x6F */
+	0x564B,0x564F,0x5650,0x5651,0x5652,0x5653,0x5655,0x5656,/* 0x70-0x77 */
+	0x565A,0x565B,0x565D,0x565E,0x565F,0x5660,0x5661,0x0000,/* 0x78-0x7F */
+	
+	0x5663,0x5665,0x5666,0x5667,0x566D,0x566E,0x566F,0x5670,/* 0x80-0x87 */
+	0x5672,0x5673,0x5674,0x5675,0x5677,0x5678,0x5679,0x567A,/* 0x88-0x8F */
+	0x567D,0x567E,0x567F,0x5680,0x5681,0x5682,0x5683,0x5684,/* 0x90-0x97 */
+	0x5687,0x5688,0x5689,0x568A,0x568B,0x568C,0x568D,0x5690,/* 0x98-0x9F */
+	0x5691,0x5692,0x5694,0x5695,0x5696,0x5697,0x5698,0x5699,/* 0xA0-0xA7 */
+	0x569A,0x569B,0x569C,0x569D,0x569E,0x569F,0x56A0,0x56A1,/* 0xA8-0xAF */
+	0x56A2,0x56A4,0x56A5,0x56A6,0x56A7,0x56A8,0x56A9,0x56AA,/* 0xB0-0xB7 */
+	0x56AB,0x56AC,0x56AD,0x56AE,0x56B0,0x56B1,0x56B2,0x56B3,/* 0xB8-0xBF */
+	0x56B4,0x56B5,0x56B6,0x56B8,0x56B9,0x56BA,0x56BB,0x56BD,/* 0xC0-0xC7 */
+	0x56BE,0x56BF,0x56C0,0x56C1,0x56C2,0x56C3,0x56C4,0x56C5,/* 0xC8-0xCF */
+	0x56C6,0x56C7,0x56C8,0x56C9,0x56CB,0x56CC,0x56CD,0x56CE,/* 0xD0-0xD7 */
+	0x56CF,0x56D0,0x56D1,0x56D2,0x56D3,0x56D5,0x56D6,0x56D8,/* 0xD8-0xDF */
+	0x56D9,0x56DC,0x56E3,0x56E5,0x56E6,0x56E7,0x56E8,0x56E9,/* 0xE0-0xE7 */
+	0x56EA,0x56EC,0x56EE,0x56EF,0x56F2,0x56F3,0x56F6,0x56F7,/* 0xE8-0xEF */
+	0x56F8,0x56FB,0x56FC,0x5700,0x5701,0x5702,0x5705,0x5707,/* 0xF0-0xF7 */
+	0x570B,0x570C,0x570D,0x570E,0x570F,0x5710,0x5711,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_88[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x5712,0x5713,0x5714,0x5715,0x5716,0x5717,0x5718,0x5719,/* 0x40-0x47 */
+	0x571A,0x571B,0x571D,0x571E,0x5720,0x5721,0x5722,0x5724,/* 0x48-0x4F */
+	0x5725,0x5726,0x5727,0x572B,0x5731,0x5732,0x5734,0x5735,/* 0x50-0x57 */
+	0x5736,0x5737,0x5738,0x573C,0x573D,0x573F,0x5741,0x5743,/* 0x58-0x5F */
+	0x5744,0x5745,0x5746,0x5748,0x5749,0x574B,0x5752,0x5753,/* 0x60-0x67 */
+	0x5754,0x5755,0x5756,0x5758,0x5759,0x5762,0x5763,0x5765,/* 0x68-0x6F */
+	0x5767,0x576C,0x576E,0x5770,0x5771,0x5772,0x5774,0x5775,/* 0x70-0x77 */
+	0x5778,0x5779,0x577A,0x577D,0x577E,0x577F,0x5780,0x0000,/* 0x78-0x7F */
+	
+	0x5781,0x5787,0x5788,0x5789,0x578A,0x578D,0x578E,0x578F,/* 0x80-0x87 */
+	0x5790,0x5791,0x5794,0x5795,0x5796,0x5797,0x5798,0x5799,/* 0x88-0x8F */
+	0x579A,0x579C,0x579D,0x579E,0x579F,0x57A5,0x57A8,0x57AA,/* 0x90-0x97 */
+	0x57AC,0x57AF,0x57B0,0x57B1,0x57B3,0x57B5,0x57B6,0x57B7,/* 0x98-0x9F */
+	0x57B9,0x57BA,0x57BB,0x57BC,0x57BD,0x57BE,0x57BF,0x57C0,/* 0xA0-0xA7 */
+	0x57C1,0x57C4,0x57C5,0x57C6,0x57C7,0x57C8,0x57C9,0x57CA,/* 0xA8-0xAF */
+	0x57CC,0x57CD,0x57D0,0x57D1,0x57D3,0x57D6,0x57D7,0x57DB,/* 0xB0-0xB7 */
+	0x57DC,0x57DE,0x57E1,0x57E2,0x57E3,0x57E5,0x57E6,0x57E7,/* 0xB8-0xBF */
+	0x57E8,0x57E9,0x57EA,0x57EB,0x57EC,0x57EE,0x57F0,0x57F1,/* 0xC0-0xC7 */
+	0x57F2,0x57F3,0x57F5,0x57F6,0x57F7,0x57FB,0x57FC,0x57FE,/* 0xC8-0xCF */
+	0x57FF,0x5801,0x5803,0x5804,0x5805,0x5808,0x5809,0x580A,/* 0xD0-0xD7 */
+	0x580C,0x580E,0x580F,0x5810,0x5812,0x5813,0x5814,0x5816,/* 0xD8-0xDF */
+	0x5817,0x5818,0x581A,0x581B,0x581C,0x581D,0x581F,0x5822,/* 0xE0-0xE7 */
+	0x5823,0x5825,0x5826,0x5827,0x5828,0x5829,0x582B,0x582C,/* 0xE8-0xEF */
+	0x582D,0x582E,0x582F,0x5831,0x5832,0x5833,0x5834,0x5836,/* 0xF0-0xF7 */
+	0x5837,0x5838,0x5839,0x583A,0x583B,0x583C,0x583D,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_89[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x583E,0x583F,0x5840,0x5841,0x5842,0x5843,0x5845,0x5846,/* 0x40-0x47 */
+	0x5847,0x5848,0x5849,0x584A,0x584B,0x584E,0x584F,0x5850,/* 0x48-0x4F */
+	0x5852,0x5853,0x5855,0x5856,0x5857,0x5859,0xFA10,0x585B,/* 0x50-0x57 */
+	0x585C,0x585D,0x585F,0x5860,0x5861,0x5862,0x5863,0x5864,/* 0x58-0x5F */
+	0x5866,0x5867,0x5868,0x5869,0x586A,0x586D,0x586E,0x586F,/* 0x60-0x67 */
+	0x5870,0x5871,0x5872,0x5873,0x5874,0x5875,0x5876,0x5877,/* 0x68-0x6F */
+	0x5878,0x5879,0x587A,0x587B,0x587C,0x587D,0x587F,0x5882,/* 0x70-0x77 */
+	0x5884,0x5886,0x5887,0x5888,0x588A,0x588B,0x588C,0x0000,/* 0x78-0x7F */
+	
+	0x588D,0x588E,0x588F,0x5890,0x5891,0x5894,0x5895,0x5896,/* 0x80-0x87 */
+	0x5897,0x5898,0x589B,0x589C,0x589D,0x58A0,0x58A1,0x58A2,/* 0x88-0x8F */
+	0x58A3,0x58A4,0x58A5,0x58A6,0x58A7,0x58AA,0x58AB,0x58AC,/* 0x90-0x97 */
+	0x58AD,0x58AE,0x58AF,0x58B0,0x58B1,0x58B2,0x58B3,0x58B4,/* 0x98-0x9F */
+	0x58B5,0x58B6,0x58B7,0x58B8,0x58B9,0x58BA,0x58BB,0x58BD,/* 0xA0-0xA7 */
+	0x58BE,0x58BF,0x58C0,0x58C2,0x58C3,0x58C4,0x58C6,0x58C7,/* 0xA8-0xAF */
+	0x58C8,0x58C9,0x58CA,0x58CB,0x58CC,0x58CD,0x58CE,0x58CF,/* 0xB0-0xB7 */
+	0x58D0,0x58D2,0x58D3,0x58D4,0x58D6,0x58D7,0xF94A,0x58D9,/* 0xB8-0xBF */
+	0x58DA,0x58DB,0x58DC,0x58DD,0x58DE,0xF942,0x58E0,0x58E1,/* 0xC0-0xC7 */
+	0x58E2,0x58E3,0x58E5,0x58E6,0x58E7,0x58E8,0x58E9,0x58EA,/* 0xC8-0xCF */
+	0x58ED,0x58EF,0x58F1,0x58F2,0x58F4,0x58F5,0x58F7,0x58F8,/* 0xD0-0xD7 */
+	0x58FA,0x58FB,0x58FC,0x58FD,0x58FE,0x58FF,0x5900,0x5901,/* 0xD8-0xDF */
+	0x5903,0x5905,0x5906,0x5908,0x5909,0x590A,0x590B,0x590C,/* 0xE0-0xE7 */
+	0x590E,0x5910,0x5911,0x5912,0x5913,0x5917,0x5918,0x591B,/* 0xE8-0xEF */
+	0x591D,0x591E,0x5920,0x5921,0x5922,0x5923,0x5926,0x5928,/* 0xF0-0xF7 */
+	0x592C,0x5930,0x5932,0x5933,0x5935,0x5936,0x593B,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_8A[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x593D,0x593E,0x593F,0x5940,0x5943,0x5945,0x5946,0x594A,/* 0x40-0x47 */
+	0x594C,0x594D,0x5950,0x5952,0x5953,0x5959,0x595B,0x595C,/* 0x48-0x4F */
+	0x595D,0x595E,0x595F,0x5961,0x5963,0x5964,0x5966,0x5967,/* 0x50-0x57 */
+	0x5968,0x5969,0x596A,0x596B,0x596C,0x596D,0x596E,0x596F,/* 0x58-0x5F */
+	0x5970,0x5971,0x5972,0x5975,0x5977,0x597A,0x597B,0x597C,/* 0x60-0x67 */
+	0x597E,0x597F,0x5980,0x5985,0x5989,0x598B,0x598C,0x598E,/* 0x68-0x6F */
+	0x598F,0x5990,0x5991,0x5994,0x5995,0x5998,0x599A,0x599B,/* 0x70-0x77 */
+	0x599C,0x599D,0x599F,0x59A0,0x59A1,0x59A2,0x59A6,0x0000,/* 0x78-0x7F */
+	
+	0x59A7,0x59AC,0x59AD,0x59B0,0x59B1,0x59B3,0x59B4,0x59B5,/* 0x80-0x87 */
+	0x59B6,0x59B7,0x59B8,0x59BA,0x59BC,0x59BD,0x59BF,0x59C0,/* 0x88-0x8F */
+	0x59C1,0x59C2,0x59C3,0x59C4,0x59C5,0x59C7,0x59C8,0x59C9,/* 0x90-0x97 */
+	0x59CC,0x59CD,0x59CE,0x59CF,0x59D5,0x59D6,0x59D9,0x59DB,/* 0x98-0x9F */
+	0x59DE,0x59DF,0x59E0,0x59E1,0x59E2,0x59E4,0x59E6,0x59E7,/* 0xA0-0xA7 */
+	0x59E9,0x59EA,0x59EB,0x59ED,0x59EE,0x59EF,0x59F0,0x59F1,/* 0xA8-0xAF */
+	0x59F2,0x59F3,0x59F4,0x59F5,0x59F6,0x59F7,0x59F8,0x59FA,/* 0xB0-0xB7 */
+	0x59FC,0x59FD,0x59FE,0x5A00,0x5A02,0x5A0A,0x5A0B,0x5A0D,/* 0xB8-0xBF */
+	0x5A0E,0x5A0F,0x5A10,0x5A12,0x5A14,0x5A15,0x5A16,0x5A17,/* 0xC0-0xC7 */
+	0x5A19,0x5A1A,0x5A1B,0x5A1D,0x5A1E,0x5A21,0x5A22,0x5A24,/* 0xC8-0xCF */
+	0x5A26,0x5A27,0x5A28,0x5A2A,0x5A2B,0x5A2C,0x5A2D,0x5A2E,/* 0xD0-0xD7 */
+	0x5A2F,0x5A30,0x5A33,0x5A35,0x5A37,0x5A38,0x5A39,0x5A3A,/* 0xD8-0xDF */
+	0x5A3B,0x5A3D,0x5A3E,0x5A3F,0x5A41,0x5A42,0x5A43,0x5A44,/* 0xE0-0xE7 */
+	0x5A45,0x5A47,0x5A48,0x5A4B,0x5A4C,0x5A4D,0x5A4E,0x5A4F,/* 0xE8-0xEF */
+	0x5A50,0x5A51,0x5A52,0x5A53,0x5A54,0x5A56,0x5A57,0x5A58,/* 0xF0-0xF7 */
+	0x5A59,0x5A5B,0x5A5C,0x5A5D,0x5A5E,0x5A5F,0x5A60,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_8B[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x5A61,0x5A63,0x5A64,0x5A65,0x5A66,0x5A68,0x5A69,0x5A6B,/* 0x40-0x47 */
+	0x5A6C,0x5A6D,0x5A6E,0x5A6F,0x5A70,0x5A71,0x5A72,0x5A73,/* 0x48-0x4F */
+	0x5A78,0x5A79,0x5A7B,0x5A7C,0x5A7D,0x5A7E,0x5A80,0x5A81,/* 0x50-0x57 */
+	0x5A82,0x5A83,0x5A84,0x5A85,0x5A86,0x5A87,0x5A88,0x5A89,/* 0x58-0x5F */
+	0x5A8A,0x5A8B,0x5A8C,0x5A8D,0x5A8E,0x5A8F,0x5A90,0x5A91,/* 0x60-0x67 */
+	0x5A93,0x5A94,0x5A95,0x5A96,0x5A97,0x5A98,0x5A99,0x5A9C,/* 0x68-0x6F */
+	0x5A9D,0x5A9E,0x5A9F,0x5AA0,0x5AA1,0x5AA2,0x5AA3,0x5AA4,/* 0x70-0x77 */
+	0x5AA5,0x5AA6,0x5AA7,0x5AA8,0x5AA9,0x5AAB,0x5AAC,0x0000,/* 0x78-0x7F */
+	
+	0x5AAD,0x5AAE,0x5AAF,0x5AB0,0x5AB1,0x5AB4,0x5AB6,0x5AB7,/* 0x80-0x87 */
+	0x5AB9,0x5ABA,0x5ABB,0x5ABC,0x5ABD,0x5ABF,0x5AC0,0x5AC3,/* 0x88-0x8F */
+	0x5AC4,0x5AC5,0x5AC6,0x5AC7,0x5AC8,0x5ACA,0x5ACB,0x5ACD,/* 0x90-0x97 */
+	0x5ACE,0x5ACF,0x5AD0,0x5AD1,0x5AD3,0x5AD5,0x5AD7,0x5AD9,/* 0x98-0x9F */
+	0x5ADA,0x5ADB,0x5ADD,0x5ADE,0x5ADF,0x5AE2,0x5AE4,0x5AE5,/* 0xA0-0xA7 */
+	0x5AE7,0x5AE8,0x5AEA,0x5AEC,0x5AED,0x5AEE,0x5AEF,0x5AF0,/* 0xA8-0xAF */
+	0x5AF2,0x5AF3,0x5AF4,0x5AF5,0x5AF6,0x5AF7,0x5AF8,0x5AF9,/* 0xB0-0xB7 */
+	0x5AFA,0x5AFB,0x5AFC,0x5AFD,0x5AFE,0x5AFF,0x5B00,0x5B01,/* 0xB8-0xBF */
+	0x5B02,0x5B03,0x5B04,0x5B05,0x5B06,0x5B07,0x5B08,0x5B0A,/* 0xC0-0xC7 */
+	0x5B0B,0x5B0C,0x5B0D,0x5B0E,0x5B0F,0x5B10,0x5B11,0x5B12,/* 0xC8-0xCF */
+	0x5B13,0x5B14,0x5B15,0x5B18,0x5B19,0x5B1A,0x5B1B,0x5B1C,/* 0xD0-0xD7 */
+	0x5B1D,0x5B1E,0x5B1F,0x5B20,0x5B21,0x5B22,0x5B23,0x5B24,/* 0xD8-0xDF */
+	0x5B25,0x5B26,0x5B27,0x5B28,0x5B29,0x5B2A,0x5B2B,0x5B2C,/* 0xE0-0xE7 */
+	0x5B2D,0x5B2E,0x5B2F,0x5B30,0x5B31,0x5B33,0x5B35,0x5B36,/* 0xE8-0xEF */
+	0x5B38,0x5B39,0x5B3A,0x5B3B,0x5B3C,0x5B3D,0x5B3E,0x5B3F,/* 0xF0-0xF7 */
+	0x5B41,0x5B42,0x5B43,0x5B44,0x5B45,0x5B46,0x5B47,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_8C[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x5B48,0x5B49,0x5B4A,0x5B4B,0x5B4C,0x5B4D,0x5B4E,0x5B4F,/* 0x40-0x47 */
+	0x5B52,0x5B56,0x5B5E,0x5B60,0x5B61,0x5B67,0x5B68,0x5B6B,/* 0x48-0x4F */
+	0x5B6D,0x5B6E,0x5B6F,0x5B72,0x5B74,0x5B76,0x5B77,0x5B78,/* 0x50-0x57 */
+	0x5B79,0x5B7B,0x5B7C,0x5B7E,0x5B7F,0x5B82,0x5B86,0x5B8A,/* 0x58-0x5F */
+	0x5B8D,0x5B8E,0x5B90,0x5B91,0x5B92,0x5B94,0x5B96,0x5B9F,/* 0x60-0x67 */
+	0x5BA7,0x5BA8,0x5BA9,0x5BAC,0x5BAD,0x5BAE,0x5BAF,0x5BB1,/* 0x68-0x6F */
+	0x5BB2,0x5BB7,0x5BBA,0x5BBB,0x5BBC,0x5BC0,0x5BC1,0x5BC3,/* 0x70-0x77 */
+	0x5BC8,0x5BC9,0x5BCA,0x5BCB,0x5BCD,0x5BCE,0x5BCF,0x0000,/* 0x78-0x7F */
+	
+	0x5BD1,0x5BD4,0x5BD5,0x5BD6,0x5BD7,0x5BD8,0x5BD9,0x5BDA,/* 0x80-0x87 */
+	0x5BDB,0x5BDC,0x5BE0,0x5BE2,0x5BE3,0x5BE6,0xF9AA,0x5BE9,/* 0x88-0x8F */
+	0x5BEA,0x5BEB,0x5BEC,0x5BED,0x5BEF,0x5BF1,0x5BF2,0x5BF3,/* 0x90-0x97 */
+	0x5BF4,0x5BF5,0x5BF6,0x5BF7,0x5BFD,0x5BFE,0x5C00,0x5C02,/* 0x98-0x9F */
+	0x5C03,0x5C05,0x5C07,0x5C08,0x5C0B,0x5C0C,0x5C0D,0x5C0E,/* 0xA0-0xA7 */
+	0x5C10,0x5C12,0x5C13,0x5C17,0x5C19,0x5C1B,0x5C1E,0x5C1F,/* 0xA8-0xAF */
+	0x5C20,0x5C21,0x5C23,0x5C26,0x5C28,0x5C29,0x5C2A,0x5C2B,/* 0xB0-0xB7 */
+	0x5C2D,0x5C2E,0x5C2F,0x5C30,0x5C32,0x5C33,0x5C35,0x5C36,/* 0xB8-0xBF */
+	0x5C37,0x5C43,0x5C44,0x5C46,0x5C47,0x5C4C,0x5C4D,0x5C52,/* 0xC0-0xC7 */
+	0x5C53,0x5C54,0x5C56,0x5C57,0x5C58,0x5C5A,0x5C5B,0x5C5C,/* 0xC8-0xCF */
+	0x5C5D,0x5C5F,0xF94B,0x5C64,0x5C67,0x5C68,0x5C69,0x5C6A,/* 0xD0-0xD7 */
+	0x5C6B,0x5C6C,0x5C6D,0x5C70,0x5C72,0x5C73,0x5C74,0x5C75,/* 0xD8-0xDF */
+	0x5C76,0x5C77,0x5C78,0x5C7B,0x5C7C,0x5C7D,0x5C7E,0x5C80,/* 0xE0-0xE7 */
+	0x5C83,0x5C84,0x5C85,0x5C86,0x5C87,0x5C89,0x5C8A,0x5C8B,/* 0xE8-0xEF */
+	0x5C8E,0x5C8F,0x5C92,0x5C93,0x5C95,0x5C9D,0x5C9E,0x5C9F,/* 0xF0-0xF7 */
+	0x5CA0,0x5CA1,0x5CA4,0x5CA5,0x5CA6,0x5CA7,0x5CA8,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_8D[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x5CAA,0x5CAE,0x5CAF,0x5CB0,0x5CB2,0x5CB4,0x5CB6,0x5CB9,/* 0x40-0x47 */
+	0x5CBA,0x5CBB,0x5CBC,0x5CBE,0x5CC0,0x5CC2,0x5CC3,0x5CC5,/* 0x48-0x4F */
+	0x5CC6,0x5CC7,0x5CC8,0x5CC9,0x5CCA,0x5CCC,0x5CCD,0x5CCE,/* 0x50-0x57 */
+	0x5CCF,0x5CD0,0x5CD1,0x5CD3,0x5CD4,0x5CD5,0x5CD6,0x5CD7,/* 0x58-0x5F */
+	0x5CD8,0x5CDA,0x5CDB,0x5CDC,0x5CDD,0x5CDE,0x5CDF,0x5CE0,/* 0x60-0x67 */
+	0x5CE2,0x5CE3,0x5CE7,0x5CE9,0x5CEB,0x5CEC,0x5CEE,0x5CEF,/* 0x68-0x6F */
+	0x5CF1,0x5CF2,0x5CF3,0x5CF4,0x5CF5,0x5CF6,0x5CF7,0x5CF8,/* 0x70-0x77 */
+	0x5CF9,0x5CFA,0x5CFC,0x5CFD,0x5CFE,0x5CFF,0x5D00,0x0000,/* 0x78-0x7F */
+	
+	0x5D01,0x5D04,0x5D05,0x5D08,0x5D09,0x5D0A,0x5D0B,0x5D0C,/* 0x80-0x87 */
+	0x5D0D,0x5D0F,0x5D10,0x5D11,0x5D12,0x5D13,0x5D15,0x5D17,/* 0x88-0x8F */
+	0x5D18,0xF9D5,0x5D1A,0x5D1C,0x5D1D,0x5D1F,0x5D20,0x5D21,/* 0x90-0x97 */
+	0x5D22,0x5D23,0x5D25,0x5D28,0x5D2A,0x5D2B,0x5D2C,0x5D2F,/* 0x98-0x9F */
+	0x5D30,0x5D31,0x5D32,0x5D33,0x5D35,0x5D36,0x5D37,0x5D38,/* 0xA0-0xA7 */
+	0x5D39,0x5D3A,0x5D3B,0x5D3C,0x5D3F,0x5D40,0x5D41,0x5D42,/* 0xA8-0xAF */
+	0x5D43,0x5D44,0x5D45,0x5D46,0x5D48,0x5D49,0x5D4D,0x5D4E,/* 0xB0-0xB7 */
+	0x5D4F,0xF921,0x5D51,0x5D52,0x5D53,0x5D54,0x5D55,0x5D56,/* 0xB8-0xBF */
+	0x5D57,0x5D59,0x5D5A,0x5D5C,0x5D5E,0x5D5F,0x5D60,0x5D61,/* 0xC0-0xC7 */
+	0x5D62,0x5D63,0x5D64,0x5D65,0x5D66,0x5D67,0x5D68,0x5D6A,/* 0xC8-0xCF */
+	0x5D6D,0x5D6E,0x5D70,0x5D71,0x5D72,0x5D73,0x5D75,0x5D76,/* 0xD0-0xD7 */
+	0x5D77,0x5D78,0x5D79,0x5D7A,0x5D7B,0x5D7C,0x5D7D,0x5D7E,/* 0xD8-0xDF */
+	0x5D7F,0x5D80,0x5D81,0x5D83,0x5D84,0x5D85,0x5D86,0x5D87,/* 0xE0-0xE7 */
+	0x5D88,0x5D89,0x5D8A,0x5D8B,0x5D8C,0x5D8D,0x5D8E,0x5D8F,/* 0xE8-0xEF */
+	0x5D90,0x5D91,0x5D92,0x5D93,0x5D94,0x5D95,0x5D96,0x5D97,/* 0xF0-0xF7 */
+	0x5D98,0x5D9A,0x5D9B,0x5D9C,0x5D9E,0x5D9F,0x5DA0,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_8E[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x5DA1,0x5DA2,0x5DA3,0x5DA4,0x5DA5,0x5DA6,0x5DA7,0x5DA8,/* 0x40-0x47 */
+	0x5DA9,0x5DAA,0x5DAB,0x5DAC,0x5DAD,0x5DAE,0x5DAF,0x5DB0,/* 0x48-0x4F */
+	0x5DB1,0x5DB2,0x5DB3,0x5DB4,0x5DB5,0x5DB6,0x5DB8,0x5DB9,/* 0x50-0x57 */
+	0xF9AB,0x5DBB,0x5DBC,0x5DBD,0x5DBE,0x5DBF,0x5DC0,0x5DC1,/* 0x58-0x5F */
+	0x5DC2,0x5DC3,0x5DC4,0x5DC6,0x5DC7,0x5DC8,0x5DC9,0x5DCA,/* 0x60-0x67 */
+	0x5DCB,0x5DCC,0x5DCE,0x5DCF,0x5DD0,0x5DD1,0x5DD2,0x5DD3,/* 0x68-0x6F */
+	0x5DD4,0x5DD5,0x5DD6,0x5DD7,0x5DD8,0x5DD9,0x5DDA,0x5DDC,/* 0x70-0x77 */
+	0x5DDF,0x5DE0,0x5DE3,0x5DE4,0x5DEA,0x5DEC,0x5DED,0x0000,/* 0x78-0x7F */
+	
+	0x5DF0,0x5DF5,0x5DF6,0x5DF8,0x5DF9,0x5DFA,0x5DFB,0x5DFC,/* 0x80-0x87 */
+	0x5DFF,0x5E00,0x5E04,0x5E07,0x5E09,0x5E0A,0x5E0B,0x5E0D,/* 0x88-0x8F */
+	0x5E0E,0x5E12,0x5E13,0x5E17,0x5E1E,0x5E1F,0x5E20,0x5E21,/* 0x90-0x97 */
+	0x5E22,0x5E23,0x5E24,0x5E25,0x5E28,0x5E29,0x5E2A,0x5E2B,/* 0x98-0x9F */
+	0x5E2C,0x5E2F,0x5E30,0x5E32,0x5E33,0x5E34,0x5E35,0x5E36,/* 0xA0-0xA7 */
+	0x5E39,0x5E3A,0x5E3E,0x5E3F,0x5E40,0x5E41,0x5E43,0x5E46,/* 0xA8-0xAF */
+	0x5E47,0x5E48,0x5E49,0x5E4A,0x5E4B,0x5E4D,0x5E4E,0x5E4F,/* 0xB0-0xB7 */
+	0x5E50,0x5E51,0x5E52,0x5E53,0x5E56,0x5E57,0x5E58,0x5E59,/* 0xB8-0xBF */
+	0x5E5A,0x5E5C,0x5E5D,0x5E5F,0x5E60,0x5E63,0x5E64,0x5E65,/* 0xC0-0xC7 */
+	0x5E66,0x5E67,0x5E68,0x5E69,0x5E6A,0x5E6B,0x5E6C,0x5E6D,/* 0xC8-0xCF */
+	0x5E6E,0x5E6F,0x5E70,0x5E71,0x5E75,0x5E77,0x5E79,0x5E7E,/* 0xD0-0xD7 */
+	0x5E81,0x5E82,0x5E83,0x5E85,0x5E88,0x5E89,0x5E8C,0x5E8D,/* 0xD8-0xDF */
+	0x5E8E,0x5E92,0x5E98,0x5E9B,0x5E9D,0x5EA1,0x5EA2,0x5EA3,/* 0xE0-0xE7 */
+	0x5EA4,0x5EA8,0x5EA9,0x5EAA,0x5EAB,0x5EAC,0x5EAE,0x5EAF,/* 0xE8-0xEF */
+	0x5EB0,0x5EB1,0x5EB2,0x5EB4,0x5EBA,0x5EBB,0x5EBC,0x5EBD,/* 0xF0-0xF7 */
+	0x5EBF,0x5EC0,0x5EC1,0x5EC2,0x5EC3,0x5EC4,0x5EC5,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_8F[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x5EC6,0x5EC7,0x5EC8,0x5ECB,0x5ECC,0x5ECD,0x5ECE,0x5ECF,/* 0x40-0x47 */
+	0x5ED0,0x5ED4,0x5ED5,0x5ED7,0x5ED8,0x5ED9,0x5EDA,0x5EDC,/* 0x48-0x4F */
+	0x5EDD,0x5EDE,0x5EDF,0x5EE0,0x5EE1,0x5EE2,0x5EE3,0x5EE4,/* 0x50-0x57 */
+	0x5EE5,0x5EE6,0x5EE7,0x5EE9,0x5EEB,0xF982,0x5EED,0x5EEE,/* 0x58-0x5F */
+	0x5EEF,0x5EF0,0x5EF1,0x5EF2,0x5EF3,0x5EF5,0x5EF8,0x5EF9,/* 0x60-0x67 */
+	0x5EFB,0x5EFC,0x5EFD,0x5F05,0x5F06,0x5F07,0x5F09,0x5F0C,/* 0x68-0x6F */
+	0x5F0D,0x5F0E,0x5F10,0x5F12,0x5F14,0x5F16,0x5F19,0x5F1A,/* 0x70-0x77 */
+	0x5F1C,0x5F1D,0x5F1E,0x5F21,0x5F22,0x5F23,0x5F24,0x0000,/* 0x78-0x7F */
+	
+	0x5F28,0x5F2B,0x5F2C,0x5F2E,0x5F30,0x5F32,0x5F33,0x5F34,/* 0x80-0x87 */
+	0x5F35,0x5F36,0x5F37,0x5F38,0x5F3B,0x5F3D,0x5F3E,0x5F3F,/* 0x88-0x8F */
+	0x5F41,0x5F42,0x5F43,0x5F44,0x5F45,0x5F46,0x5F47,0x5F48,/* 0x90-0x97 */
+	0x5F49,0x5F4A,0x5F4B,0x5F4C,0x5F4D,0x5F4E,0x5F4F,0x5F51,/* 0x98-0x9F */
+	0x5F54,0x5F59,0x5F5A,0x5F5B,0x5F5C,0x5F5E,0x5F5F,0x5F60,/* 0xA0-0xA7 */
+	0x5F63,0x5F65,0x5F67,0x5F68,0x5F6B,0x5F6E,0x5F6F,0x5F72,/* 0xA8-0xAF */
+	0x5F74,0x5F75,0x5F76,0x5F78,0x5F7A,0x5F7D,0x5F7E,0x5F7F,/* 0xB0-0xB7 */
+	0x5F83,0x5F86,0x5F8D,0x5F8E,0x5F8F,0x5F91,0x5F93,0x5F94,/* 0xB8-0xBF */
+	0x5F96,0x5F9A,0x5F9B,0x5F9D,0x5F9E,0x5F9F,0x5FA0,0x5FA2,/* 0xC0-0xC7 */
+	0x5FA3,0x5FA4,0x5FA5,0x5FA6,0x5FA7,0xF966,0x5FAB,0x5FAC,/* 0xC8-0xCF */
+	0x5FAF,0x5FB0,0x5FB1,0x5FB2,0x5FB3,0x5FB4,0x5FB6,0x5FB8,/* 0xD0-0xD7 */
+	0x5FB9,0x5FBA,0x5FBB,0x5FBE,0x5FBF,0x5FC0,0x5FC1,0x5FC2,/* 0xD8-0xDF */
+	0x5FC7,0x5FC8,0x5FCA,0x5FCB,0x5FCE,0x5FD3,0x5FD4,0x5FD5,/* 0xE0-0xE7 */
+	0x5FDA,0x5FDB,0x5FDC,0x5FDE,0x5FDF,0x5FE2,0x5FE3,0x5FE5,/* 0xE8-0xEF */
+	0x5FE6,0x5FE8,0x5FE9,0x5FEC,0x5FEF,0x5FF0,0x5FF2,0x5FF3,/* 0xF0-0xF7 */
+	0x5FF4,0x5FF6,0x5FF7,0x5FF9,0x5FFA,0x5FFC,0x6007,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_90[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6008,0x6009,0x600B,0x600C,0x6010,0x6011,0x6013,0x6017,/* 0x40-0x47 */
+	0x6018,0x601A,0x601E,0x601F,0x6022,0x6023,0x6024,0x602C,/* 0x48-0x4F */
+	0x602D,0x602E,0x6030,0x6031,0x6032,0x6033,0x6034,0x6036,/* 0x50-0x57 */
+	0x6037,0x6038,0x6039,0x603A,0x603D,0x603E,0x6040,0x6044,/* 0x58-0x5F */
+	0x6045,0x6046,0x6047,0x6048,0x6049,0x604A,0x604C,0x604E,/* 0x60-0x67 */
+	0x604F,0x6051,0x6053,0x6054,0x6056,0x6057,0x6058,0x605B,/* 0x68-0x6F */
+	0x605C,0x605E,0x605F,0x6060,0x6061,0x6065,0x6066,0x606E,/* 0x70-0x77 */
+	0x6071,0x6072,0x6074,0x6075,0x6077,0x607E,0x6080,0x0000,/* 0x78-0x7F */
+	
+	0x6081,0x6082,0x6085,0x6086,0x6087,0x6088,0x608A,0x608B,/* 0x80-0x87 */
+	0x608E,0x608F,0x6090,0x6091,0x6093,0x6095,0x6097,0x6098,/* 0x88-0x8F */
+	0x6099,0x609C,0x609E,0x60A1,0x60A2,0x60A4,0x60A5,0x60A7,/* 0x90-0x97 */
+	0x60A9,0x60AA,0x60AE,0x60B0,0x60B3,0x60B5,0x60B6,0x60B7,/* 0x98-0x9F */
+	0x60B9,0x60BA,0x60BD,0x60BE,0x60BF,0x60C0,0x60C1,0x60C2,/* 0xA0-0xA7 */
+	0x60C3,0x60C4,0x60C7,0x60C8,0x60C9,0x60CC,0x60CD,0x60CE,/* 0xA8-0xAF */
+	0x60CF,0x60D0,0x60D2,0x60D3,0x60D4,0x60D6,0x60D7,0x60D9,/* 0xB0-0xB7 */
+	0x60DB,0x60DE,0xF9B9,0x60E2,0x60E3,0x60E4,0x60E5,0x60EA,/* 0xB8-0xBF */
+	0x60F1,0x60F2,0x60F5,0x60F7,0x60F8,0x60FB,0x60FC,0x60FD,/* 0xC0-0xC7 */
+	0x60FE,0x60FF,0x6102,0x6103,0x6104,0x6105,0x6107,0x610A,/* 0xC8-0xCF */
+	0x610B,0x610C,0x6110,0x6111,0x6112,0x6113,0x6114,0x6116,/* 0xD0-0xD7 */
+	0x6117,0x6118,0x6119,0x611B,0x611C,0x611D,0x611E,0x6121,/* 0xD8-0xDF */
+	0x6122,0x6125,0x6128,0x6129,0x612A,0x612C,0x612D,0x612E,/* 0xE0-0xE7 */
+	0x612F,0x6130,0x6131,0x6132,0x6133,0x6134,0x6135,0x6136,/* 0xE8-0xEF */
+	0x6137,0x6138,0x6139,0x613A,0x613B,0x613C,0x613D,0x613E,/* 0xF0-0xF7 */
+	0x6140,0x6141,0x6142,0x6143,0xF9D9,0x6145,0x6146,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_91[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6147,0x6149,0x614B,0x614D,0x614F,0x6150,0x6152,0x6153,/* 0x40-0x47 */
+	0x6154,0x6156,0x6157,0x6158,0x6159,0x615A,0x615B,0x615C,/* 0x48-0x4F */
+	0x615E,0x615F,0x6160,0x6161,0x6163,0x6164,0x6165,0x6166,/* 0x50-0x57 */
+	0x6169,0x616A,0x616B,0x616C,0x616D,0x616E,0x616F,0x6171,/* 0x58-0x5F */
+	0x6172,0x6173,0x6174,0x6176,0x6178,0x6179,0x617A,0x617B,/* 0x60-0x67 */
+	0x617C,0x617D,0x617E,0x617F,0x6180,0x6181,0x6182,0x6183,/* 0x68-0x6F */
+	0x6184,0x6185,0x6186,0x6187,0x6188,0x6189,0x618A,0x618C,/* 0x70-0x77 */
+	0x618D,0x618F,0xF98F,0x6191,0x6192,0x6193,0x6195,0x0000,/* 0x78-0x7F */
+	
+	0x6196,0x6197,0x6198,0x6199,0x619A,0x619B,0x619C,0x619E,/* 0x80-0x87 */
+	0x619F,0x61A0,0x61A1,0x61A2,0x61A3,0x61A4,0x61A5,0x61A6,/* 0x88-0x8F */
+	0x61AA,0x61AB,0x61AD,0x61AE,0x61AF,0x61B0,0x61B1,0x61B2,/* 0x90-0x97 */
+	0x61B3,0x61B4,0x61B5,0x61B6,0x61B8,0x61B9,0x61BA,0x61BB,/* 0x98-0x9F */
+	0x61BC,0x61BD,0x61BF,0x61C0,0x61C1,0x61C3,0x61C4,0x61C5,/* 0xA0-0xA7 */
+	0x61C6,0x61C7,0x61C9,0x61CC,0x61CD,0x61CE,0x61CF,0x61D0,/* 0xA8-0xAF */
+	0x61D3,0x61D5,0x61D6,0x61D7,0x61D8,0x61D9,0x61DA,0x61DB,/* 0xB0-0xB7 */
+	0x61DC,0x61DD,0x61DE,0x61DF,0x61E0,0x61E1,0x61E2,0x61E3,/* 0xB8-0xBF */
+	0x61E4,0x61E5,0x61E7,0x61E8,0x61E9,0x61EA,0x61EB,0x61EC,/* 0xC0-0xC7 */
+	0x61ED,0x61EE,0x61EF,0x61F0,0x61F1,0x61F2,0x61F3,0x61F4,/* 0xC8-0xCF */
+	0xF90D,0x61F7,0x61F8,0x61F9,0x61FA,0x61FB,0x61FC,0x61FD,/* 0xD0-0xD7 */
+	0x61FE,0xF990,0x6201,0x6202,0x6203,0x6204,0x6205,0x6207,/* 0xD8-0xDF */
+	0x6209,0x6213,0x6214,0x6219,0x621C,0x621D,0x621E,0x6220,/* 0xE0-0xE7 */
+	0x6223,0x6226,0x6227,0x6228,0x6229,0x622B,0x622D,0x622F,/* 0xE8-0xEF */
+	0x6230,0x6231,0x6232,0x6235,0x6236,0x6238,0x6239,0x623A,/* 0xF0-0xF7 */
+	0x623B,0x623C,0x6242,0x6244,0x6245,0x6246,0x624A,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_92[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x624F,0x6250,0x6255,0x6256,0x6257,0x6259,0x625A,0x625C,/* 0x40-0x47 */
+	0x625D,0x625E,0x625F,0x6260,0x6261,0x6262,0x6264,0x6265,/* 0x48-0x4F */
+	0x6268,0x6271,0x6272,0x6274,0x6275,0x6277,0x6278,0x627A,/* 0x50-0x57 */
+	0x627B,0x627D,0x6281,0x6282,0x6283,0x6285,0x6286,0x6287,/* 0x58-0x5F */
+	0x6288,0x628B,0x628C,0x628D,0x628E,0x628F,0x6290,0x6294,/* 0x60-0x67 */
+	0x6299,0x629C,0x629D,0x629E,0x62A3,0x62A6,0x62A7,0x62A9,/* 0x68-0x6F */
+	0x62AA,0x62AD,0x62AE,0x62AF,0x62B0,0x62B2,0x62B3,0x62B4,/* 0x70-0x77 */
+	0x62B6,0x62B7,0x62B8,0x62BA,0x62BE,0x62C0,0x62C1,0x0000,/* 0x78-0x7F */
+	
+	0x62C3,0x62CB,0xF95B,0x62D1,0x62D5,0x62DD,0x62DE,0x62E0,/* 0x80-0x87 */
+	0x62E1,0x62E4,0x62EA,0x62EB,0x62F0,0x62F2,0x62F5,0x62F8,/* 0x88-0x8F */
+	0x62F9,0x62FA,0x62FB,0x6300,0x6303,0x6304,0x6305,0x6306,/* 0x90-0x97 */
+	0x630A,0x630B,0x630C,0x630D,0x630F,0x6310,0x6312,0x6313,/* 0x98-0x9F */
+	0x6314,0x6315,0x6317,0x6318,0x6319,0x631C,0x6326,0x6327,/* 0xA0-0xA7 */
+	0x6329,0x632C,0x632D,0x632E,0x6330,0x6331,0x6333,0x6334,/* 0xA8-0xAF */
+	0x6335,0x6336,0x6337,0x6338,0x633B,0x633C,0x633E,0x633F,/* 0xB0-0xB7 */
+	0x6340,0x6341,0x6344,0x6347,0x6348,0x634A,0x6351,0x6352,/* 0xB8-0xBF */
+	0x6353,0x6354,0x6356,0x6357,0x6358,0x6359,0x635A,0x635B,/* 0xC0-0xC7 */
+	0x635C,0x635D,0x6360,0x6364,0x6365,0x6366,0x6368,0x636A,/* 0xC8-0xCF */
+	0x636B,0x636C,0x636F,0x6370,0x6372,0x6373,0x6374,0x6375,/* 0xD0-0xD7 */
+	0x6378,0x6379,0x637C,0x637D,0x637E,0x637F,0x6381,0x6383,/* 0xD8-0xDF */
+	0x6384,0x6385,0x6386,0x638B,0x638D,0x6391,0x6393,0x6394,/* 0xE0-0xE7 */
+	0x6395,0x6397,0x6399,0x639A,0x639B,0x639C,0x639D,0x639E,/* 0xE8-0xEF */
+	0x639F,0x63A1,0x63A4,0x63A6,0x63AB,0x63AF,0x63B1,0x63B2,/* 0xF0-0xF7 */
+	0x63B5,0x63B6,0x63B9,0x63BB,0x63BD,0x63BF,0x63C0,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_93[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x63C1,0x63C2,0x63C3,0x63C5,0x63C7,0x63C8,0x63CA,0x63CB,/* 0x40-0x47 */
+	0x63CC,0x63D1,0x63D3,0x63D4,0x63D5,0x63D7,0x63D8,0x63D9,/* 0x48-0x4F */
+	0x63DA,0x63DB,0x63DC,0x63DD,0x63DF,0x63E2,0x63E4,0x63E5,/* 0x50-0x57 */
+	0x63E6,0x63E7,0x63E8,0x63EB,0x63EC,0x63EE,0x63EF,0x63F0,/* 0x58-0x5F */
+	0x63F1,0x63F3,0x63F5,0x63F7,0x63F9,0x63FA,0x63FB,0x63FC,/* 0x60-0x67 */
+	0x63FE,0x6403,0x6404,0x6406,0x6407,0x6408,0x6409,0x640A,/* 0x68-0x6F */
+	0x640D,0x640E,0x6411,0x6412,0x6415,0x6416,0x6417,0x6418,/* 0x70-0x77 */
+	0x6419,0x641A,0x641D,0x641F,0x6422,0x6423,0x6424,0x0000,/* 0x78-0x7F */
+	
+	0x6425,0x6427,0x6428,0x6429,0x642B,0x642E,0x642F,0x6430,/* 0x80-0x87 */
+	0x6431,0x6432,0x6433,0x6435,0x6436,0x6437,0x6438,0x6439,/* 0x88-0x8F */
+	0x643B,0x643C,0x643E,0x6440,0x6442,0x6443,0x6449,0x644B,/* 0x90-0x97 */
+	0x644C,0x644D,0x644E,0x644F,0x6450,0x6451,0x6453,0x6455,/* 0x98-0x9F */
+	0x6456,0x6457,0x6459,0x645A,0x645B,0x645C,0x645D,0x645F,/* 0xA0-0xA7 */
+	0x6460,0x6461,0x6462,0x6463,0x6464,0x6465,0x6466,0x6468,/* 0xA8-0xAF */
+	0x646A,0x646B,0x646C,0x646E,0x646F,0x6470,0x6471,0x6472,/* 0xB0-0xB7 */
+	0x6473,0x6474,0x6475,0x6476,0x6477,0x647B,0x647C,0x647D,/* 0xB8-0xBF */
+	0x647E,0x647F,0x6480,0x6481,0x6483,0x6486,0x6488,0x6489,/* 0xC0-0xC7 */
+	0x648A,0x648B,0x648C,0x648D,0x648E,0x648F,0x6490,0x6493,/* 0xC8-0xCF */
+	0x6494,0x6497,0x6498,0xF991,0x649B,0x649C,0x649D,0x649F,/* 0xD0-0xD7 */
+	0x64A0,0x64A1,0x64A2,0x64A3,0x64A5,0x64A6,0x64A7,0x64A8,/* 0xD8-0xDF */
+	0x64AA,0x64AB,0x64AF,0x64B1,0x64B2,0x64B3,0x64B4,0x64B6,/* 0xE0-0xE7 */
+	0x64B9,0x64BB,0x64BD,0x64BE,0x64BF,0x64C1,0x64C3,0xF930,/* 0xE8-0xEF */
+	0x64C6,0x64C7,0x64C8,0x64C9,0x64CA,0x64CB,0x64CC,0x64CF,/* 0xF0-0xF7 */
+	0x64D1,0x64D3,0x64D4,0x64D5,0x64D6,0x64D9,0x64DA,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_94[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x64DB,0x64DC,0x64DD,0x64DF,0x64E0,0x64E1,0x64E3,0x64E5,/* 0x40-0x47 */
+	0x64E7,0x64E8,0x64E9,0x64EA,0x64EB,0x64EC,0x64ED,0x64EE,/* 0x48-0x4F */
+	0x64EF,0x64F0,0x64F1,0x64F2,0x64F3,0x64F4,0x64F5,0x64F6,/* 0x50-0x57 */
+	0x64F7,0x64F8,0x64F9,0x64FA,0x64FB,0x64FC,0x64FD,0x64FE,/* 0x58-0x5F */
+	0x64FF,0x6501,0x6502,0x6503,0x6504,0x6505,0x6506,0x6507,/* 0x60-0x67 */
+	0x6508,0x650A,0x650B,0x650C,0x650D,0x650E,0x650F,0x6510,/* 0x68-0x6F */
+	0x6511,0x6513,0x6514,0x6515,0x6516,0x6517,0x6519,0x651A,/* 0x70-0x77 */
+	0x651B,0x651C,0x651D,0x651E,0x651F,0x6520,0x6521,0x0000,/* 0x78-0x7F */
+	
+	0x6522,0x6523,0x6524,0x6526,0x6527,0x6528,0x6529,0x652A,/* 0x80-0x87 */
+	0x652C,0x652D,0x6530,0x6531,0x6532,0x6533,0x6537,0x653A,/* 0x88-0x8F */
+	0x653C,0x653D,0x6540,0x6541,0x6542,0x6543,0x6544,0x6546,/* 0x90-0x97 */
+	0x6547,0x654A,0x654B,0x654D,0x654E,0x6550,0x6552,0x6553,/* 0x98-0x9F */
+	0x6554,0x6557,0x6558,0x655A,0x655C,0x655F,0x6560,0x6561,/* 0xA0-0xA7 */
+	0x6564,0x6565,0x6567,0x6568,0x6569,0x656A,0x656D,0x656E,/* 0xA8-0xAF */
+	0x656F,0x6571,0x6573,0x6575,0x6576,0xF969,0x6579,0x657A,/* 0xB0-0xB7 */
+	0x657B,0x657C,0x657D,0x657E,0x657F,0x6580,0x6581,0x6582,/* 0xB8-0xBF */
+	0x6583,0x6584,0x6585,0x6586,0x6588,0x6589,0x658A,0x658D,/* 0xC0-0xC7 */
+	0x658E,0x658F,0x6592,0x6594,0x6595,0x6596,0x6598,0x659A,/* 0xC8-0xCF */
+	0x659D,0x659E,0x65A0,0x65A2,0x65A3,0x65A6,0x65A8,0x65AA,/* 0xD0-0xD7 */
+	0x65AC,0x65AE,0x65B1,0x65B2,0x65B3,0x65B4,0x65B5,0x65B6,/* 0xD8-0xDF */
+	0x65B7,0x65B8,0x65BA,0x65BB,0x65BE,0x65BF,0x65C0,0x65C2,/* 0xE0-0xE7 */
+	0x65C7,0x65C8,0x65C9,0x65CA,0x65CD,0x65D0,0x65D1,0x65D3,/* 0xE8-0xEF */
+	0x65D4,0x65D5,0x65D8,0x65D9,0x65DA,0x65DB,0x65DC,0x65DD,/* 0xF0-0xF7 */
+	0x65DE,0x65DF,0x65E1,0x65E3,0x65E4,0x65EA,0x65EB,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_95[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x65F2,0x65F3,0x65F4,0x65F5,0x65F8,0x65F9,0x65FB,0x65FC,/* 0x40-0x47 */
+	0x65FD,0x65FE,0x65FF,0x6601,0x6604,0x6605,0x6607,0x6608,/* 0x48-0x4F */
+	0x6609,0x660B,0x660D,0x6610,0x6611,0x6612,0x6616,0x6617,/* 0x50-0x57 */
+	0x6618,0x661A,0x661B,0x661C,0x661E,0x6621,0x6622,0x6623,/* 0x58-0x5F */
+	0x6624,0x6626,0x6629,0x662A,0x662B,0x662C,0x662E,0x6630,/* 0x60-0x67 */
+	0x6632,0x6633,0x6637,0x6638,0x6639,0x663A,0x663B,0x663D,/* 0x68-0x6F */
+	0x663F,0x6640,0x6642,0x6644,0x6645,0x6646,0x6647,0x6648,/* 0x70-0x77 */
+	0x6649,0x664A,0x664D,0x664E,0x6650,0x6651,0x6658,0x0000,/* 0x78-0x7F */
+	
+	0x6659,0x665B,0x665C,0x665D,0x665E,0x6660,0x6662,0x6663,/* 0x80-0x87 */
+	0x6665,0x6667,0x6669,0x666A,0x666B,0x666C,0x666D,0x6671,/* 0x88-0x8F */
+	0x6672,0x6673,0x6675,0x6678,0x6679,0x667B,0x667C,0x667D,/* 0x90-0x97 */
+	0x667F,0x6680,0x6681,0x6683,0x6685,0x6686,0xF9C5,0x6689,/* 0x98-0x9F */
+	0x668A,0x668B,0x668D,0x668E,0x668F,0x6690,0x6692,0x6693,/* 0xA0-0xA7 */
+	0x6694,0x6695,0x6698,0x6699,0x669A,0x669B,0x669C,0x669E,/* 0xA8-0xAF */
+	0x669F,0x66A0,0x66A1,0x66A2,0x66A3,0x66A4,0x66A5,0x66A6,/* 0xB0-0xB7 */
+	0x66A9,0x66AA,0x66AB,0x66AC,0x66AD,0x66AF,0x66B0,0x66B1,/* 0xB8-0xBF */
+	0x66B2,0x66B3,0x66B5,0x66B6,0x66B7,0x66B8,0x66BA,0x66BB,/* 0xC0-0xC7 */
+	0x66BC,0x66BD,0x66BF,0x66C0,0x66C1,0x66C2,0x66C3,0x66C4,/* 0xC8-0xCF */
+	0x66C5,0xF98B,0x66C7,0x66C8,0x66C9,0x66CA,0x66CB,0x66CC,/* 0xD0-0xD7 */
+	0x66CD,0x66CE,0x66CF,0x66D0,0x66D1,0x66D2,0x66D3,0x66D4,/* 0xD8-0xDF */
+	0x66D5,0x66D6,0x66D7,0x66D8,0x66DA,0x66DE,0x66DF,0x66E0,/* 0xE0-0xE7 */
+	0x66E1,0x66E2,0x66E3,0x66E4,0x66E5,0x66E7,0x66E8,0x66EA,/* 0xE8-0xEF */
+	0x66EB,0x66EC,0x66ED,0x66EE,0x66EF,0x66F1,0x66F5,0x66F6,/* 0xF0-0xF7 */
+	0x66F8,0x66FA,0x66FB,0x66FD,0x6701,0x6702,0x6703,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_96[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6704,0x6705,0x6706,0x6707,0x670C,0x670E,0x670F,0x6711,/* 0x40-0x47 */
+	0x6712,0x6713,0x6716,0x6718,0x6719,0x671A,0x671C,0x671E,/* 0x48-0x4F */
+	0x6720,0x6721,0x6722,0x6723,0x6724,0x6725,0x6727,0x6729,/* 0x50-0x57 */
+	0x672E,0x6730,0x6732,0x6733,0x6736,0x6737,0x6738,0x6739,/* 0x58-0x5F */
+	0x673B,0x673C,0x673E,0x673F,0x6741,0x6744,0x6745,0x6747,/* 0x60-0x67 */
+	0x674A,0x674B,0x674D,0x6752,0x6754,0x6755,0x6757,0x6758,/* 0x68-0x6F */
+	0x6759,0x675A,0x675B,0x675D,0x6762,0x6763,0x6764,0x6766,/* 0x70-0x77 */
+	0x6767,0x676B,0x676C,0x676E,0x6771,0x6774,0x6776,0x0000,/* 0x78-0x7F */
+	
+	0x6778,0x6779,0x677A,0xF9C8,0x677D,0x6780,0x6782,0x6783,/* 0x80-0x87 */
+	0x6785,0x6786,0x6788,0x678A,0x678C,0x678D,0x678E,0x678F,/* 0x88-0x8F */
+	0x6791,0x6792,0x6793,0x6794,0x6796,0x6799,0x679B,0x679F,/* 0x90-0x97 */
+	0x67A0,0x67A1,0x67A4,0x67A6,0x67A9,0x67AC,0x67AE,0x67B1,/* 0x98-0x9F */
+	0x67B2,0x67B4,0x67B9,0x67BA,0x67BB,0x67BC,0x67BD,0x67BE,/* 0xA0-0xA7 */
+	0x67BF,0x67C0,0x67C2,0x67C5,0x67C6,0x67C7,0x67C8,0x67C9,/* 0xA8-0xAF */
+	0x67CA,0x67CB,0x67CC,0x67CD,0x67CE,0x67D5,0x67D6,0x67D7,/* 0xB0-0xB7 */
+	0x67DB,0x67DF,0x67E1,0x67E3,0x67E4,0x67E6,0x67E7,0x67E8,/* 0xB8-0xBF */
+	0x67EA,0x67EB,0x67ED,0x67EE,0x67F2,0x67F5,0x67F6,0x67F7,/* 0xC0-0xC7 */
+	0x67F8,0x67F9,0x67FA,0x67FB,0x67FC,0x67FE,0x6801,0x6802,/* 0xC8-0xCF */
+	0x6803,0x6804,0x6806,0x680D,0x6810,0x6812,0x6814,0x6815,/* 0xD0-0xD7 */
+	0x6818,0x6819,0x681A,0x681B,0x681C,0x681E,0x681F,0x6820,/* 0xD8-0xDF */
+	0x6822,0x6823,0x6824,0x6825,0x6826,0x6827,0x6828,0x682B,/* 0xE0-0xE7 */
+	0x682C,0x682D,0x682E,0x682F,0x6830,0x6831,0x6834,0x6835,/* 0xE8-0xEF */
+	0x6836,0x683A,0x683B,0x683F,0x6847,0x684B,0x684D,0x684F,/* 0xF0-0xF7 */
+	0x6852,0x6856,0x6857,0x6858,0x6859,0x685A,0x685B,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_97[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x685C,0x685D,0x685E,0x685F,0x686A,0x686C,0x686D,0x686E,/* 0x40-0x47 */
+	0x686F,0x6870,0x6871,0x6872,0x6873,0x6875,0x6878,0x6879,/* 0x48-0x4F */
+	0x687A,0x687B,0x687C,0x687D,0x687E,0x687F,0x6880,0x6882,/* 0x50-0x57 */
+	0x6884,0x6887,0x6888,0x6889,0x688A,0x688B,0x688C,0x688D,/* 0x58-0x5F */
+	0x688E,0x6890,0x6891,0x6892,0x6894,0x6895,0x6896,0x6898,/* 0x60-0x67 */
+	0x6899,0x689A,0x689B,0x689C,0x689D,0x689E,0x689F,0x68A0,/* 0x68-0x6F */
+	0x68A1,0x68A3,0x68A4,0x68A5,0x68A9,0x68AA,0x68AB,0x68AC,/* 0x70-0x77 */
+	0x68AE,0x68B1,0x68B2,0x68B4,0x68B6,0x68B7,0x68B8,0x0000,/* 0x78-0x7F */
+	
+	0x68B9,0x68BA,0x68BB,0x68BC,0x68BD,0x68BE,0x68BF,0x68C1,/* 0x80-0x87 */
+	0x68C3,0x68C4,0x68C5,0x68C6,0x68C7,0x68C8,0x68CA,0x68CC,/* 0x88-0x8F */
+	0x68CE,0x68CF,0x68D0,0x68D1,0x68D3,0x68D4,0x68D6,0x68D7,/* 0x90-0x97 */
+	0x68D9,0x68DB,0x68DC,0x68DD,0x68DE,0x68DF,0x68E1,0x68E2,/* 0x98-0x9F */
+	0x68E4,0x68E5,0x68E6,0x68E7,0x68E8,0x68E9,0x68EA,0x68EB,/* 0xA0-0xA7 */
+	0x68EC,0x68ED,0x68EF,0x68F2,0x68F3,0x68F4,0x68F6,0x68F7,/* 0xA8-0xAF */
+	0x68F8,0x68FB,0x68FD,0x68FE,0x68FF,0x6900,0x6902,0x6903,/* 0xB0-0xB7 */
+	0x6904,0x6906,0x6907,0x6908,0x6909,0x690A,0x690C,0x690F,/* 0xB8-0xBF */
+	0x6911,0x6913,0x6914,0x6915,0x6916,0x6917,0x6918,0x6919,/* 0xC0-0xC7 */
+	0x691A,0x691B,0x691C,0x691D,0x691E,0x6921,0x6922,0x6923,/* 0xC8-0xCF */
+	0x6925,0x6926,0x6927,0x6928,0x6929,0x692A,0x692B,0x692C,/* 0xD0-0xD7 */
+	0x692E,0x692F,0x6931,0x6932,0x6933,0x6935,0x6936,0x6937,/* 0xD8-0xDF */
+	0x6938,0x693A,0x693B,0x693C,0x693E,0x6940,0x6941,0x6943,/* 0xE0-0xE7 */
+	0x6944,0x6945,0x6946,0x6947,0x6948,0x6949,0x694A,0x694B,/* 0xE8-0xEF */
+	0x694C,0x694D,0x694E,0x694F,0x6950,0x6951,0x6952,0x6953,/* 0xF0-0xF7 */
+	0x6955,0x6956,0x6958,0x6959,0x695B,0x695C,0x695F,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_98[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6961,0x6962,0x6964,0x6965,0x6967,0x6968,0x6969,0x696A,/* 0x40-0x47 */
+	0x696C,0x696D,0x696F,0x6970,0x6972,0x6973,0x6974,0x6975,/* 0x48-0x4F */
+	0x6976,0x697A,0x697B,0x697D,0x697E,0x697F,0x6981,0x6983,/* 0x50-0x57 */
+	0x6985,0x698A,0x698B,0x698C,0x698E,0x698F,0x6990,0x6991,/* 0x58-0x5F */
+	0x6992,0x6993,0x6996,0x6997,0x6999,0x699A,0x699D,0x699E,/* 0x60-0x67 */
+	0x699F,0x69A0,0x69A1,0x69A2,0x69A3,0x69A4,0x69A5,0x69A6,/* 0x68-0x6F */
+	0x69A9,0x69AA,0x69AC,0x69AE,0x69AF,0x69B0,0x69B2,0x69B3,/* 0x70-0x77 */
+	0x69B5,0x69B6,0x69B8,0x69B9,0x69BA,0x69BC,0x69BD,0x0000,/* 0x78-0x7F */
+	
+	0x69BE,0x69BF,0x69C0,0x69C2,0x69C3,0x69C4,0x69C5,0x69C6,/* 0x80-0x87 */
+	0x69C7,0x69C8,0x69C9,0x69CB,0x69CD,0x69CF,0x69D1,0x69D2,/* 0x88-0x8F */
+	0x69D3,0x69D5,0x69D6,0x69D7,0x69D8,0x69D9,0x69DA,0x69DC,/* 0x90-0x97 */
+	0x69DD,0x69DE,0x69E1,0x69E2,0x69E3,0x69E4,0x69E5,0x69E6,/* 0x98-0x9F */
+	0x69E7,0x69E8,0x69E9,0x69EA,0x69EB,0x69EC,0x69EE,0x69EF,/* 0xA0-0xA7 */
+	0x69F0,0x69F1,0x69F3,0x69F4,0x69F5,0x69F6,0x69F7,0x69F8,/* 0xA8-0xAF */
+	0x69F9,0x69FA,0x69FB,0x69FC,0x69FE,0x6A00,0x6A01,0xF9BF,/* 0xB0-0xB7 */
+	0x6A03,0x6A04,0x6A05,0x6A06,0x6A07,0x6A08,0x6A09,0x6A0B,/* 0xB8-0xBF */
+	0x6A0C,0x6A0D,0x6A0E,0x6A0F,0x6A10,0x6A11,0x6A12,0xF94C,/* 0xC0-0xC7 */
+	0x6A14,0x6A15,0x6A16,0x6A19,0x6A1A,0x6A1B,0x6A1C,0x6A1D,/* 0xC8-0xCF */
+	0x6A1E,0x6A20,0x6A22,0x6A23,0x6A24,0x6A25,0x6A26,0x6A27,/* 0xD0-0xD7 */
+	0x6A29,0x6A2B,0x6A2C,0x6A2D,0x6A2E,0x6A30,0x6A32,0x6A33,/* 0xD8-0xDF */
+	0x6A34,0x6A36,0x6A37,0x6A38,0x6A39,0x6A3A,0x6A3B,0x6A3C,/* 0xE0-0xE7 */
+	0x6A3F,0x6A40,0x6A41,0x6A42,0x6A43,0x6A45,0x6A46,0x6A48,/* 0xE8-0xEF */
+	0x6A49,0x6A4A,0x6A4B,0x6A4C,0x6A4D,0x6A4E,0x6A4F,0x6A51,/* 0xF0-0xF7 */
+	0x6A52,0x6A53,0x6A54,0x6A55,0x6A56,0x6A57,0x6A5A,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_99[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6A5C,0x6A5D,0x6A5E,0x6A5F,0x6A60,0x6A62,0x6A63,0x6A64,/* 0x40-0x47 */
+	0x6A66,0x6A67,0x6A68,0x6A69,0x6A6A,0x6A6B,0x6A6C,0x6A6D,/* 0x48-0x4F */
+	0x6A6E,0x6A6F,0x6A70,0x6A72,0x6A73,0x6A74,0x6A75,0x6A76,/* 0x50-0x57 */
+	0x6A77,0x6A78,0x6A7A,0x6A7B,0x6A7D,0x6A7E,0x6A7F,0x6A81,/* 0x58-0x5F */
+	0x6A82,0x6A83,0x6A85,0x6A86,0x6A87,0x6A88,0x6A89,0x6A8A,/* 0x60-0x67 */
+	0x6A8B,0x6A8C,0x6A8D,0x6A8F,0x6A92,0x6A93,0x6A94,0x6A95,/* 0x68-0x6F */
+	0x6A96,0x6A98,0x6A99,0x6A9A,0x6A9B,0x6A9C,0x6A9D,0x6A9E,/* 0x70-0x77 */
+	0x6A9F,0x6AA1,0x6AA2,0x6AA3,0x6AA4,0x6AA5,0x6AA6,0x0000,/* 0x78-0x7F */
+	
+	0x6AA7,0x6AA8,0x6AAA,0x6AAD,0x6AAE,0x6AAF,0x6AB0,0x6AB1,/* 0x80-0x87 */
+	0x6AB2,0x6AB3,0x6AB4,0x6AB5,0x6AB6,0x6AB7,0x6AB8,0x6AB9,/* 0x88-0x8F */
+	0x6ABA,0x6ABB,0x6ABC,0x6ABD,0x6ABE,0x6ABF,0x6AC0,0x6AC1,/* 0x90-0x97 */
+	0x6AC2,0x6AC3,0x6AC4,0x6AC5,0x6AC6,0x6AC7,0x6AC8,0x6AC9,/* 0x98-0x9F */
+	0x6ACA,0x6ACB,0x6ACC,0x6ACD,0x6ACE,0x6ACF,0x6AD0,0x6AD1,/* 0xA0-0xA7 */
+	0x6AD2,0xF931,0x6AD4,0x6AD5,0x6AD6,0x6AD7,0x6AD8,0x6AD9,/* 0xA8-0xAF */
+	0x6ADA,0x6ADB,0x6ADC,0x6ADD,0x6ADE,0x6ADF,0x6AE0,0x6AE1,/* 0xB0-0xB7 */
+	0x6AE2,0x6AE3,0x6AE4,0x6AE5,0x6AE6,0x6AE7,0x6AE8,0x6AE9,/* 0xB8-0xBF */
+	0x6AEA,0x6AEB,0x6AEC,0x6AED,0x6AEE,0x6AEF,0x6AF0,0x6AF1,/* 0xC0-0xC7 */
+	0x6AF2,0x6AF3,0x6AF4,0x6AF5,0x6AF6,0x6AF7,0x6AF8,0x6AF9,/* 0xC8-0xCF */
+	0x6AFA,0x6AFB,0x6AFC,0x6AFD,0x6AFE,0x6AFF,0x6B00,0x6B01,/* 0xD0-0xD7 */
+	0x6B02,0x6B03,0xF91D,0x6B05,0x6B06,0x6B07,0x6B08,0x6B09,/* 0xD8-0xDF */
+	0x6B0A,0x6B0B,0x6B0C,0x6B0D,0x6B0E,0x6B0F,0x6B10,0x6B11,/* 0xE0-0xE7 */
+	0x6B12,0x6B13,0x6B14,0x6B15,0x6B16,0x6B17,0x6B18,0x6B19,/* 0xE8-0xEF */
+	0x6B1A,0x6B1B,0x6B1C,0x6B1D,0x6B1E,0x6B1F,0x6B25,0x6B26,/* 0xF0-0xF7 */
+	0x6B28,0x6B29,0x6B2A,0x6B2B,0x6B2C,0x6B2D,0x6B2E,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_9A[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6B2F,0x6B30,0x6B31,0x6B33,0x6B34,0x6B35,0x6B36,0x6B38,/* 0x40-0x47 */
+	0x6B3B,0x6B3C,0x6B3D,0x6B3F,0x6B40,0x6B41,0x6B42,0x6B44,/* 0x48-0x4F */
+	0x6B45,0x6B48,0x6B4A,0x6B4B,0x6B4D,0x6B4E,0x6B4F,0x6B50,/* 0x50-0x57 */
+	0x6B51,0x6B52,0x6B53,0x6B54,0x6B55,0x6B56,0x6B57,0x6B58,/* 0x58-0x5F */
+	0x6B5A,0x6B5B,0x6B5C,0x6B5D,0x6B5E,0x6B5F,0x6B60,0x6B61,/* 0x60-0x67 */
+	0x6B68,0x6B69,0x6B6B,0x6B6C,0x6B6D,0x6B6E,0x6B6F,0x6B70,/* 0x68-0x6F */
+	0x6B71,0x6B72,0x6B73,0x6B74,0x6B75,0x6B76,0xF98C,0x6B78,/* 0x70-0x77 */
+	0x6B7A,0x6B7D,0x6B7E,0x6B7F,0x6B80,0x6B85,0x6B88,0x0000,/* 0x78-0x7F */
+	
+	0x6B8C,0x6B8E,0x6B8F,0x6B90,0x6B91,0x6B94,0x6B95,0x6B97,/* 0x80-0x87 */
+	0x6B98,0x6B99,0x6B9C,0x6B9D,0x6B9E,0x6B9F,0x6BA0,0x6BA2,/* 0x88-0x8F */
+	0x6BA3,0x6BA4,0x6BA5,0x6BA6,0x6BA7,0x6BA8,0x6BA9,0x6BAB,/* 0x90-0x97 */
+	0x6BAC,0x6BAD,0xF9A5,0x6BAF,0x6BB0,0x6BB1,0x6BB2,0x6BB6,/* 0x98-0x9F */
+	0x6BB8,0x6BB9,0xF970,0x6BBB,0x6BBC,0x6BBD,0x6BBE,0x6BC0,/* 0xA0-0xA7 */
+	0x6BC3,0x6BC4,0x6BC6,0x6BC7,0x6BC8,0x6BC9,0x6BCA,0x6BCC,/* 0xA8-0xAF */
+	0x6BCE,0x6BD0,0x6BD1,0x6BD8,0x6BDA,0x6BDC,0x6BDD,0x6BDE,/* 0xB0-0xB7 */
+	0x6BDF,0x6BE0,0x6BE2,0x6BE3,0x6BE4,0x6BE5,0x6BE6,0x6BE7,/* 0xB8-0xBF */
+	0x6BE8,0x6BE9,0x6BEC,0x6BED,0x6BEE,0x6BF0,0x6BF1,0x6BF2,/* 0xC0-0xC7 */
+	0x6BF4,0x6BF6,0x6BF7,0x6BF8,0x6BFA,0x6BFB,0x6BFC,0x6BFE,/* 0xC8-0xCF */
+	0x6BFF,0x6C00,0x6C01,0x6C02,0x6C03,0x6C04,0x6C08,0x6C09,/* 0xD0-0xD7 */
+	0x6C0A,0x6C0B,0x6C0C,0x6C0E,0x6C12,0x6C17,0x6C1C,0x6C1D,/* 0xD8-0xDF */
+	0x6C1E,0x6C20,0x6C23,0x6C25,0x6C2B,0x6C2C,0x6C2D,0x6C31,/* 0xE0-0xE7 */
+	0x6C33,0x6C36,0x6C37,0x6C39,0x6C3A,0x6C3B,0x6C3C,0x6C3E,/* 0xE8-0xEF */
+	0x6C3F,0x6C43,0x6C44,0x6C45,0x6C48,0x6C4B,0x6C4C,0x6C4D,/* 0xF0-0xF7 */
+	0x6C4E,0x6C4F,0x6C51,0x6C52,0x6C53,0x6C56,0x6C58,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_9B[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6C59,0x6C5A,0x6C62,0x6C63,0x6C65,0x6C66,0x6C67,0x6C6B,/* 0x40-0x47 */
+	0x6C6C,0x6C6D,0x6C6E,0x6C6F,0x6C71,0x6C73,0x6C75,0x6C77,/* 0x48-0x4F */
+	0x6C78,0x6C7A,0x6C7B,0x6C7C,0x6C7F,0x6C80,0x6C84,0x6C87,/* 0x50-0x57 */
+	0x6C8A,0x6C8B,0x6C8D,0x6C8E,0x6C91,0x6C92,0x6C95,0x6C96,/* 0x58-0x5F */
+	0x6C97,0x6C98,0x6C9A,0x6C9C,0x6C9D,0x6C9E,0x6CA0,0x6CA2,/* 0x60-0x67 */
+	0x6CA8,0x6CAC,0x6CAF,0x6CB0,0x6CB4,0x6CB5,0x6CB6,0x6CB7,/* 0x68-0x6F */
+	0x6CBA,0x6CC0,0x6CC1,0x6CC2,0x6CC3,0x6CC6,0x6CC7,0x6CC8,/* 0x70-0x77 */
+	0x6CCB,0x6CCD,0x6CCE,0x6CCF,0x6CD1,0x6CD2,0x6CD8,0x0000,/* 0x78-0x7F */
+	
+	0x6CD9,0x6CDA,0x6CDC,0x6CDD,0x6CDF,0x6CE4,0x6CE6,0x6CE7,/* 0x80-0x87 */
+	0x6CE9,0x6CEC,0x6CED,0x6CF2,0x6CF4,0x6CF9,0x6CFF,0x6D00,/* 0x88-0x8F */
+	0x6D02,0x6D03,0x6D05,0x6D06,0x6D08,0x6D09,0x6D0A,0x6D0D,/* 0x90-0x97 */
+	0x6D0F,0x6D10,0x6D11,0x6D13,0x6D14,0x6D15,0x6D16,0x6D18,/* 0x98-0x9F */
+	0x6D1C,0x6D1D,0x6D1F,0x6D20,0x6D21,0x6D22,0x6D23,0x6D24,/* 0xA0-0xA7 */
+	0x6D26,0x6D28,0x6D29,0x6D2C,0x6D2D,0x6D2F,0x6D30,0x6D34,/* 0xA8-0xAF */
+	0x6D36,0x6D37,0x6D38,0x6D3A,0x6D3F,0x6D40,0x6D42,0x6D44,/* 0xB0-0xB7 */
+	0x6D49,0x6D4C,0x6D50,0x6D55,0x6D56,0x6D57,0x6D58,0x6D5B,/* 0xB8-0xBF */
+	0x6D5D,0x6D5F,0x6D61,0x6D62,0x6D64,0x6D65,0x6D67,0x6D68,/* 0xC0-0xC7 */
+	0x6D6B,0x6D6C,0x6D6D,0x6D70,0x6D71,0x6D72,0x6D73,0x6D75,/* 0xC8-0xCF */
+	0x6D76,0x6D79,0x6D7A,0x6D7B,0x6D7D,0x6D7E,0x6D7F,0x6D80,/* 0xD0-0xD7 */
+	0x6D81,0x6D83,0x6D84,0x6D86,0x6D87,0x6D8A,0x6D8B,0x6D8D,/* 0xD8-0xDF */
+	0x6D8F,0x6D90,0x6D92,0x6D96,0x6D97,0x6D98,0x6D99,0x6D9A,/* 0xE0-0xE7 */
+	0x6D9C,0x6DA2,0x6DA5,0x6DAC,0x6DAD,0x6DB0,0x6DB1,0x6DB3,/* 0xE8-0xEF */
+	0x6DB4,0x6DB6,0x6DB7,0x6DB9,0x6DBA,0x6DBB,0x6DBC,0x6DBD,/* 0xF0-0xF7 */
+	0x6DBE,0x6DC1,0x6DC2,0x6DC3,0x6DC8,0x6DC9,0x6DCA,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_9C[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6DCD,0x6DCE,0x6DCF,0x6DD0,0x6DD2,0x6DD3,0x6DD4,0x6DD5,/* 0x40-0x47 */
+	0x6DD7,0xF94D,0x6DDB,0x6DDC,0x6DDF,0x6DE2,0x6DE3,0x6DE5,/* 0x48-0x4F */
+	0x6DE7,0x6DE8,0x6DE9,0xF9D6,0x6DED,0x6DEF,0x6DF0,0x6DF2,/* 0x50-0x57 */
+	0x6DF4,0x6DF5,0x6DF6,0x6DF8,0x6DFA,0x6DFD,0x6DFE,0x6DFF,/* 0x58-0x5F */
+	0x6E00,0x6E01,0x6E02,0x6E03,0x6E04,0x6E06,0x6E07,0x6E08,/* 0x60-0x67 */
+	0x6E09,0x6E0B,0x6E0F,0x6E12,0x6E13,0x6E15,0x6E18,0x6E19,/* 0x68-0x6F */
+	0x6E1B,0x6E1C,0x6E1E,0x6E1F,0x6E22,0x6E26,0x6E27,0x6E28,/* 0x70-0x77 */
+	0x6E2A,0x6E2C,0x6E2E,0x6E30,0x6E31,0x6E33,0x6E35,0x0000,/* 0x78-0x7F */
+	
+	0x6E36,0x6E37,0x6E39,0x6E3B,0x6E3C,0x6E3D,0x6E3E,0x6E3F,/* 0x80-0x87 */
+	0x6E40,0x6E41,0x6E42,0x6E45,0x6E46,0x6E47,0x6E48,0x6E49,/* 0x88-0x8F */
+	0x6E4A,0x6E4B,0x6E4C,0x6E4F,0x6E50,0x6E51,0x6E52,0x6E55,/* 0x90-0x97 */
+	0x6E57,0x6E59,0x6E5A,0x6E5C,0x6E5D,0x6E5E,0x6E60,0x6E61,/* 0x98-0x9F */
+	0x6E62,0x6E63,0x6E64,0x6E65,0x6E66,0x6E67,0x6E68,0x6E69,/* 0xA0-0xA7 */
+	0x6E6A,0x6E6C,0x6E6D,0x6E6F,0x6E70,0x6E71,0x6E72,0x6E73,/* 0xA8-0xAF */
+	0x6E74,0x6E75,0x6E76,0x6E77,0x6E78,0x6E79,0x6E7A,0x6E7B,/* 0xB0-0xB7 */
+	0x6E7C,0x6E7D,0x6E80,0x6E81,0x6E82,0x6E84,0x6E87,0x6E88,/* 0xB8-0xBF */
+	0x6E8A,0x6E8B,0x6E8C,0x6E8D,0x6E8E,0x6E91,0x6E92,0x6E93,/* 0xC0-0xC7 */
+	0x6E94,0x6E95,0x6E96,0x6E97,0x6E99,0x6E9A,0x6E9B,0x6E9D,/* 0xC8-0xCF */
+	0x6E9E,0x6EA0,0x6EA1,0x6EA3,0x6EA4,0x6EA6,0x6EA8,0x6EA9,/* 0xD0-0xD7 */
+	0x6EAB,0x6EAC,0x6EAD,0x6EAE,0x6EB0,0x6EB3,0x6EB5,0x6EB8,/* 0xD8-0xDF */
+	0x6EB9,0x6EBC,0x6EBE,0x6EBF,0x6EC0,0x6EC3,0x6EC4,0x6EC5,/* 0xE0-0xE7 */
+	0x6EC6,0x6EC8,0x6EC9,0x6ECA,0x6ECC,0x6ECD,0x6ECE,0x6ED0,/* 0xE8-0xEF */
+	0x6ED2,0x6ED6,0x6ED8,0x6ED9,0x6EDB,0x6EDC,0x6EDD,0x6EE3,/* 0xF0-0xF7 */
+	0x6EE7,0x6EEA,0x6EEB,0x6EEC,0x6EED,0x6EEE,0x6EEF,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_9D[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6EF0,0x6EF1,0x6EF2,0x6EF3,0x6EF5,0x6EF6,0x6EF7,0x6EF8,/* 0x40-0x47 */
+	0x6EFA,0x6EFB,0x6EFC,0x6EFD,0x6EFE,0x6EFF,0x6F00,0x6F01,/* 0x48-0x4F */
+	0x6F03,0x6F04,0x6F05,0x6F07,0x6F08,0x6F0A,0x6F0B,0x6F0C,/* 0x50-0x57 */
+	0x6F0D,0x6F0E,0x6F10,0x6F11,0x6F12,0x6F16,0x6F17,0x6F18,/* 0x58-0x5F */
+	0x6F19,0x6F1A,0x6F1B,0x6F1C,0x6F1D,0x6F1E,0x6F1F,0x6F21,/* 0x60-0x67 */
+	0x6F22,0xF992,0x6F25,0x6F26,0x6F27,0x6F28,0x6F2C,0x6F2E,/* 0x68-0x6F */
+	0x6F30,0x6F32,0x6F34,0x6F35,0x6F37,0x6F38,0x6F39,0x6F3A,/* 0x70-0x77 */
+	0x6F3B,0x6F3C,0x6F3D,0x6F3F,0x6F40,0x6F41,0x6F42,0x0000,/* 0x78-0x7F */
+	
+	0x6F43,0x6F44,0x6F45,0x6F48,0x6F49,0x6F4A,0x6F4C,0x6F4E,/* 0x80-0x87 */
+	0x6F4F,0x6F50,0x6F51,0x6F52,0x6F53,0x6F54,0x6F55,0x6F56,/* 0x88-0x8F */
+	0x6F57,0x6F59,0x6F5A,0x6F5B,0x6F5D,0x6F5F,0x6F60,0x6F61,/* 0x90-0x97 */
+	0x6F63,0x6F64,0x6F65,0x6F67,0x6F68,0x6F69,0x6F6A,0x6F6B,/* 0x98-0x9F */
+	0x6F6C,0x6F6F,0x6F70,0x6F71,0x6F73,0x6F75,0x6F76,0x6F77,/* 0xA0-0xA7 */
+	0x6F79,0x6F7B,0x6F7D,0x6F7E,0x6F7F,0x6F80,0x6F81,0x6F82,/* 0xA8-0xAF */
+	0x6F83,0x6F85,0x6F86,0x6F87,0x6F8A,0x6F8B,0x6F8F,0x6F90,/* 0xB0-0xB7 */
+	0x6F91,0x6F92,0x6F93,0x6F94,0x6F95,0x6F96,0x6F97,0x6F98,/* 0xB8-0xBF */
+	0x6F99,0x6F9A,0x6F9B,0x6F9D,0x6F9E,0x6F9F,0x6FA0,0x6FA2,/* 0xC0-0xC7 */
+	0x6FA3,0x6FA4,0x6FA5,0x6FA6,0x6FA8,0x6FA9,0x6FAA,0x6FAB,/* 0xC8-0xCF */
+	0x6FAC,0x6FAD,0x6FAE,0x6FAF,0x6FB0,0x6FB1,0x6FB2,0x6FB4,/* 0xD0-0xD7 */
+	0x6FB5,0x6FB7,0x6FB8,0x6FBA,0x6FBB,0x6FBC,0x6FBD,0x6FBE,/* 0xD8-0xDF */
+	0x6FBF,0x6FC1,0x6FC3,0x6FC4,0x6FC5,0x6FC6,0x6FC7,0x6FC8,/* 0xE0-0xE7 */
+	0x6FCA,0x6FCB,0x6FCC,0x6FCD,0x6FCE,0x6FCF,0x6FD0,0x6FD3,/* 0xE8-0xEF */
+	0x6FD4,0x6FD5,0x6FD6,0x6FD7,0x6FD8,0x6FD9,0x6FDA,0x6FDB,/* 0xF0-0xF7 */
+	0x6FDC,0x6FDD,0x6FDF,0x6FE2,0x6FE3,0x6FE4,0x6FE5,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_9E[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6FE6,0x6FE7,0x6FE8,0x6FE9,0x6FEA,0xF922,0x6FEC,0x6FED,/* 0x40-0x47 */
+	0x6FF0,0x6FF1,0x6FF2,0x6FF3,0x6FF4,0x6FF5,0x6FF6,0x6FF7,/* 0x48-0x4F */
+	0x6FF8,0x6FF9,0x6FFA,0x6FFB,0x6FFC,0x6FFD,0xF984,0x6FFF,/* 0x50-0x57 */
+	0x7000,0x7001,0x7002,0x7003,0x7004,0x7005,0x7006,0x7007,/* 0x58-0x5F */
+	0x7008,0x7009,0x700A,0x700B,0x700C,0x700D,0x700E,0x700F,/* 0x60-0x67 */
+	0x7010,0x7012,0x7013,0x7014,0x7015,0x7016,0x7017,0x7018,/* 0x68-0x6F */
+	0x7019,0x701C,0x701D,0x701E,0x701F,0x7020,0x7021,0x7022,/* 0x70-0x77 */
+	0x7024,0x7025,0x7026,0x7027,0x7028,0x7029,0x702A,0x0000,/* 0x78-0x7F */
+	
+	0x702B,0x702C,0x702D,0x702E,0x702F,0x7030,0x7031,0x7032,/* 0x80-0x87 */
+	0x7033,0x7034,0x7036,0x7037,0x7038,0x703A,0x703B,0x703C,/* 0x88-0x8F */
+	0x703D,0x703E,0x703F,0x7040,0x7041,0x7042,0x7043,0x7044,/* 0x90-0x97 */
+	0x7045,0x7046,0x7047,0x7048,0x7049,0x704A,0x704B,0x704D,/* 0x98-0x9F */
+	0x704E,0x7050,0x7051,0x7052,0x7053,0x7054,0x7055,0x7056,/* 0xA0-0xA7 */
+	0x7057,0x7058,0x7059,0x705A,0x705B,0x705C,0x705D,0x705F,/* 0xA8-0xAF */
+	0x7060,0x7061,0x7062,0x7063,0x7064,0x7065,0x7066,0x7067,/* 0xB0-0xB7 */
+	0x7068,0x7069,0x706A,0x706E,0x7071,0x7072,0x7073,0x7074,/* 0xB8-0xBF */
+	0x7077,0x7079,0x707A,0x707B,0x707D,0x7081,0x7082,0x7083,/* 0xC0-0xC7 */
+	0x7084,0x7086,0x7087,0x7088,0x708B,0x708C,0x708D,0x708F,/* 0xC8-0xCF */
+	0x7090,0x7091,0x7093,0x7097,0x7098,0x709A,0x709B,0x709E,/* 0xD0-0xD7 */
+	0x709F,0x70A0,0x70A1,0x70A2,0x70A3,0x70A4,0x70A5,0x70A6,/* 0xD8-0xDF */
+	0x70A7,0x70A8,0x70A9,0x70AA,0x70B0,0x70B2,0x70B4,0x70B5,/* 0xE0-0xE7 */
+	0x70B6,0x70BA,0x70BE,0x70BF,0x70C4,0x70C5,0x70C6,0x70C7,/* 0xE8-0xEF */
+	0x70C9,0x70CB,0x70CC,0x70CD,0x70CE,0x70CF,0x70D0,0x70D1,/* 0xF0-0xF7 */
+	0x70D2,0x70D3,0x70D4,0x70D5,0x70D6,0x70D7,0x70DA,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_9F[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x70DC,0x70DD,0x70DE,0x70E0,0x70E1,0x70E2,0x70E3,0x70E5,/* 0x40-0x47 */
+	0x70EA,0x70EE,0x70F0,0x70F1,0x70F2,0x70F3,0x70F4,0x70F5,/* 0x48-0x4F */
+	0x70F6,0x70F8,0x70FA,0x70FB,0x70FC,0x70FE,0x70FF,0x7100,/* 0x50-0x57 */
+	0x7101,0x7102,0x7103,0x7104,0x7105,0x7106,0x7107,0x7108,/* 0x58-0x5F */
+	0x710B,0x710C,0x710D,0x710E,0x710F,0x7111,0x7112,0x7114,/* 0x60-0x67 */
+	0x7117,0x711B,0x711C,0x711D,0x711E,0x711F,0x7120,0x7121,/* 0x68-0x6F */
+	0x7122,0x7123,0x7124,0x7125,0x7127,0x7128,0x7129,0x712A,/* 0x70-0x77 */
+	0x712B,0x712C,0x712D,0x712E,0x7132,0x7133,0x7134,0x0000,/* 0x78-0x7F */
+	
+	0x7135,0x7137,0x7138,0x7139,0x713A,0x713B,0x713C,0x713D,/* 0x80-0x87 */
+	0x713E,0x713F,0x7140,0x7141,0x7142,0x7143,0x7144,0x7146,/* 0x88-0x8F */
+	0x7147,0x7148,0xF993,0x714B,0x714D,0x714F,0x7150,0x7151,/* 0x90-0x97 */
+	0x7152,0x7153,0x7154,0x7155,0x7156,0x7157,0x7158,0x7159,/* 0x98-0x9F */
+	0x715A,0x715B,0x715D,0x715F,0x7160,0x7161,0x7162,0x7163,/* 0xA0-0xA7 */
+	0x7165,0x7169,0x716A,0x716B,0x716C,0x716D,0x716F,0x7170,/* 0xA8-0xAF */
+	0x7171,0x7174,0x7175,0x7176,0x7177,0x7179,0x717B,0x717C,/* 0xB0-0xB7 */
+	0x717E,0x717F,0x7180,0x7181,0x7182,0x7183,0x7185,0x7186,/* 0xB8-0xBF */
+	0x7187,0x7188,0x7189,0x718B,0x718C,0x718D,0x718E,0x7190,/* 0xC0-0xC7 */
+	0x7191,0x7192,0x7193,0x7195,0x7196,0x7197,0x719A,0x719B,/* 0xC8-0xCF */
+	0x719C,0x719D,0x719E,0x71A1,0x71A2,0x71A3,0x71A4,0x71A5,/* 0xD0-0xD7 */
+	0x71A6,0x71A7,0x71A9,0x71AA,0x71AB,0x71AD,0x71AE,0x71AF,/* 0xD8-0xDF */
+	0x71B0,0x71B1,0x71B2,0x71B4,0x71B6,0x71B7,0x71B8,0x71BA,/* 0xE0-0xE7 */
+	0x71BB,0x71BC,0x71BD,0x71BE,0x71BF,0x71C0,0x71C1,0x71C2,/* 0xE8-0xEF */
+	0x71C4,0x71C5,0x71C6,0x71C7,0x71C8,0x71C9,0x71CA,0x71CB,/* 0xF0-0xF7 */
+	0x71CC,0x71CD,0x71CF,0xF9EE,0x71D1,0x71D2,0x71D3,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_A0[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x71D6,0x71D7,0x71D8,0x71D9,0x71DA,0x71DB,0x71DC,0x71DD,/* 0x40-0x47 */
+	0x71DE,0x71DF,0x71E1,0x71E2,0x71E3,0x71E4,0x71E6,0x71E8,/* 0x48-0x4F */
+	0x71E9,0x71EA,0x71EB,0x71EC,0x71ED,0x71EF,0x71F0,0x71F1,/* 0x50-0x57 */
+	0x71F2,0x71F3,0x71F4,0x71F5,0x71F6,0x71F7,0x71F8,0x71FA,/* 0x58-0x5F */
+	0x71FB,0x71FC,0x71FD,0x71FE,0x71FF,0x7200,0x7201,0x7202,/* 0x60-0x67 */
+	0x7203,0x7204,0x7205,0x7207,0x7208,0x7209,0x720A,0x720B,/* 0x68-0x6F */
+	0x720C,0x720D,0x720E,0x720F,0xF932,0x7211,0x7212,0x7213,/* 0x70-0x77 */
+	0x7214,0x7215,0x7216,0x7217,0x7218,0x7219,0x721A,0x0000,/* 0x78-0x7F */
+	
+	0xF91E,0x721C,0x721E,0x721F,0x7220,0x7221,0x7222,0x7223,/* 0x80-0x87 */
+	0x7224,0x7225,0x7226,0x7227,0x7229,0x722B,0x722D,0x722E,/* 0x88-0x8F */
+	0x722F,0x7232,0x7233,0x7234,0x723A,0x723C,0x723E,0x7240,/* 0x90-0x97 */
+	0x7241,0x7242,0x7243,0x7244,0x7245,0x7246,0x7249,0x724A,/* 0x98-0x9F */
+	0x724B,0x724E,0x724F,0x7250,0x7251,0x7253,0x7254,0x7255,/* 0xA0-0xA7 */
+	0x7257,0x7258,0x725A,0x725C,0x725E,0x7260,0x7263,0x7264,/* 0xA8-0xAF */
+	0x7265,0x7268,0x726A,0x726B,0x726C,0x726D,0x7270,0x7271,/* 0xB0-0xB7 */
+	0x7273,0x7274,0x7276,0x7277,0x7278,0x727B,0x727C,0x727D,/* 0xB8-0xBF */
+	0x7282,0x7283,0x7285,0x7286,0x7287,0x7288,0x7289,0x728C,/* 0xC0-0xC7 */
+	0x728E,0x7290,0x7291,0x7293,0x7294,0x7295,0x7296,0x7297,/* 0xC8-0xCF */
+	0x7298,0x7299,0x729A,0x729B,0x729C,0x729D,0x729E,0x72A0,/* 0xD0-0xD7 */
+	0x72A1,0x72A2,0x72A3,0x72A4,0x72A5,0x72A6,0x72A7,0x72A8,/* 0xD8-0xDF */
+	0x72A9,0x72AA,0x72AB,0x72AE,0x72B1,0x72B2,0x72B3,0x72B5,/* 0xE0-0xE7 */
+	0x72BA,0x72BB,0x72BC,0x72BD,0x72BE,0x72BF,0xF9FA,0x72C5,/* 0xE8-0xEF */
+	0x72C6,0x72C7,0x72C9,0x72CA,0x72CB,0x72CC,0x72CF,0x72D1,/* 0xF0-0xF7 */
+	0x72D3,0x72D4,0x72D5,0x72D6,0x72D8,0x72DA,0x72DB,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_A1[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x3000,0x3001,0x3002,0x00B7,0x02C9,0x02C7,0x00A8,/* 0xA0-0xA7 */
+	0x3003,0x3005,0x2014,0xFF5E,0x2016,0x2026,0x2018,0x2019,/* 0xA8-0xAF */
+	0x201C,0x201D,0x3014,0x3015,0x3008,0x3009,0x300A,0x300B,/* 0xB0-0xB7 */
+	0x300C,0x300D,0x300E,0x300F,0x3016,0x3017,0x3010,0x3011,/* 0xB8-0xBF */
+	0x00B1,0x00D7,0x00F7,0x2236,0x2227,0x2228,0x2211,0x220F,/* 0xC0-0xC7 */
+	0x222A,0x2229,0x2208,0x2237,0x221A,0x22A5,0x2225,0x2220,/* 0xC8-0xCF */
+	0x2312,0x2299,0x222B,0x222E,0x2261,0x224C,0x2248,0x223D,/* 0xD0-0xD7 */
+	0x221D,0x2260,0x226E,0x226F,0x2264,0x2265,0x221E,0x2235,/* 0xD8-0xDF */
+	0x2234,0x2642,0x2640,0x2218,0x2032,0x2033,0x2103,0xFF04,/* 0xE0-0xE7 */
+	0x00A4,0xFFE0,0xFFE1,0x2030,0x00A7,0x2116,0x2606,0x2605,/* 0xE8-0xEF */
+	0x25CB,0x25CF,0x25CE,0x25C7,0x25C6,0x25A1,0x25A0,0x25B3,/* 0xF0-0xF7 */
+	0x25B2,0x203B,0x2192,0x2190,0x2191,0x2193,0x3013,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_A2[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x2170,0x2171,0x2172,0x2173,0x2174,0x2175,0x2176,/* 0xA0-0xA7 */
+	0x2177,0x2178,0x2179,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xA8-0xAF */
+	0x0000,0x2488,0x2489,0x248A,0x248B,0x248C,0x248D,0x248E,/* 0xB0-0xB7 */
+	0x248F,0x2490,0x2491,0x2492,0x2493,0x2494,0x2495,0x2496,/* 0xB8-0xBF */
+	0x2497,0x2498,0x2499,0x249A,0x249B,0x2474,0x2475,0x2476,/* 0xC0-0xC7 */
+	0x2477,0x2478,0x2479,0x247A,0x247B,0x247C,0x247D,0x247E,/* 0xC8-0xCF */
+	0x247F,0x2480,0x2481,0x2482,0x2483,0x2484,0x2485,0x2486,/* 0xD0-0xD7 */
+	0x2487,0x2460,0x2461,0x2462,0x2463,0x2464,0x2465,0x2466,/* 0xD8-0xDF */
+	0x2467,0x2468,0x2469,0x0000,0x0000,0x3220,0x3221,0x3222,/* 0xE0-0xE7 */
+	0x3223,0x3224,0x3225,0x3226,0x3227,0x3228,0x3229,0x0000,/* 0xE8-0xEF */
+	0x0000,0x2160,0x2161,0x2162,0x2163,0x2164,0x2165,0x2166,/* 0xF0-0xF7 */
+	0x2167,0x2168,0x2169,0x216A,0x216B,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_A3[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0xFF01,0xFF02,0xFF03,0xFFE5,0xFF05,0xFF06,0xFF07,/* 0xA0-0xA7 */
+	0xFF08,0xFF09,0xFF0A,0xFF0B,0xFF0C,0xFF0D,0xFF0E,0xFF0F,/* 0xA8-0xAF */
+	0xFF10,0xFF11,0xFF12,0xFF13,0xFF14,0xFF15,0xFF16,0xFF17,/* 0xB0-0xB7 */
+	0xFF18,0xFF19,0xFF1A,0xFF1B,0xFF1C,0xFF1D,0xFF1E,0xFF1F,/* 0xB8-0xBF */
+	0xFF20,0xFF21,0xFF22,0xFF23,0xFF24,0xFF25,0xFF26,0xFF27,/* 0xC0-0xC7 */
+	0xFF28,0xFF29,0xFF2A,0xFF2B,0xFF2C,0xFF2D,0xFF2E,0xFF2F,/* 0xC8-0xCF */
+	0xFF30,0xFF31,0xFF32,0xFF33,0xFF34,0xFF35,0xFF36,0xFF37,/* 0xD0-0xD7 */
+	0xFF38,0xFF39,0xFF3A,0xFF3B,0xFF3C,0xFF3D,0xFF3E,0xFF3F,/* 0xD8-0xDF */
+	0xFF40,0xFF41,0xFF42,0xFF43,0xFF44,0xFF45,0xFF46,0xFF47,/* 0xE0-0xE7 */
+	0xFF48,0xFF49,0xFF4A,0xFF4B,0xFF4C,0xFF4D,0xFF4E,0xFF4F,/* 0xE8-0xEF */
+	0xFF50,0xFF51,0xFF52,0xFF53,0xFF54,0xFF55,0xFF56,0xFF57,/* 0xF0-0xF7 */
+	0xFF58,0xFF59,0xFF5A,0xFF5B,0xFF5C,0xFF5D,0xFFE3,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_A4[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x3041,0x3042,0x3043,0x3044,0x3045,0x3046,0x3047,/* 0xA0-0xA7 */
+	0x3048,0x3049,0x304A,0x304B,0x304C,0x304D,0x304E,0x304F,/* 0xA8-0xAF */
+	0x3050,0x3051,0x3052,0x3053,0x3054,0x3055,0x3056,0x3057,/* 0xB0-0xB7 */
+	0x3058,0x3059,0x305A,0x305B,0x305C,0x305D,0x305E,0x305F,/* 0xB8-0xBF */
+	0x3060,0x3061,0x3062,0x3063,0x3064,0x3065,0x3066,0x3067,/* 0xC0-0xC7 */
+	0x3068,0x3069,0x306A,0x306B,0x306C,0x306D,0x306E,0x306F,/* 0xC8-0xCF */
+	0x3070,0x3071,0x3072,0x3073,0x3074,0x3075,0x3076,0x3077,/* 0xD0-0xD7 */
+	0x3078,0x3079,0x307A,0x307B,0x307C,0x307D,0x307E,0x307F,/* 0xD8-0xDF */
+	0x3080,0x3081,0x3082,0x3083,0x3084,0x3085,0x3086,0x3087,/* 0xE0-0xE7 */
+	0x3088,0x3089,0x308A,0x308B,0x308C,0x308D,0x308E,0x308F,/* 0xE8-0xEF */
+	0x3090,0x3091,0x3092,0x3093,0x0000,0x0000,0x0000,0x0000,/* 0xF0-0xF7 */
+};
+
+static wchar_t c2u_A5[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x30A1,0x30A2,0x30A3,0x30A4,0x30A5,0x30A6,0x30A7,/* 0xA0-0xA7 */
+	0x30A8,0x30A9,0x30AA,0x30AB,0x30AC,0x30AD,0x30AE,0x30AF,/* 0xA8-0xAF */
+	0x30B0,0x30B1,0x30B2,0x30B3,0x30B4,0x30B5,0x30B6,0x30B7,/* 0xB0-0xB7 */
+	0x30B8,0x30B9,0x30BA,0x30BB,0x30BC,0x30BD,0x30BE,0x30BF,/* 0xB8-0xBF */
+	0x30C0,0x30C1,0x30C2,0x30C3,0x30C4,0x30C5,0x30C6,0x30C7,/* 0xC0-0xC7 */
+	0x30C8,0x30C9,0x30CA,0x30CB,0x30CC,0x30CD,0x30CE,0x30CF,/* 0xC8-0xCF */
+	0x30D0,0x30D1,0x30D2,0x30D3,0x30D4,0x30D5,0x30D6,0x30D7,/* 0xD0-0xD7 */
+	0x30D8,0x30D9,0x30DA,0x30DB,0x30DC,0x30DD,0x30DE,0x30DF,/* 0xD8-0xDF */
+	0x30E0,0x30E1,0x30E2,0x30E3,0x30E4,0x30E5,0x30E6,0x30E7,/* 0xE0-0xE7 */
+	0x30E8,0x30E9,0x30EA,0x30EB,0x30EC,0x30ED,0x30EE,0x30EF,/* 0xE8-0xEF */
+	0x30F0,0x30F1,0x30F2,0x30F3,0x30F4,0x30F5,0x30F6,0x0000,/* 0xF0-0xF7 */
+};
+
+static wchar_t c2u_A6[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x0391,0x0392,0x0393,0x0394,0x0395,0x0396,0x0397,/* 0xA0-0xA7 */
+	0x0398,0x0399,0x039A,0x039B,0x039C,0x039D,0x039E,0x039F,/* 0xA8-0xAF */
+	0x03A0,0x03A1,0x03A3,0x03A4,0x03A5,0x03A6,0x03A7,0x03A8,/* 0xB0-0xB7 */
+	0x03A9,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xB8-0xBF */
+	0x0000,0x03B1,0x03B2,0x03B3,0x03B4,0x03B5,0x03B6,0x03B7,/* 0xC0-0xC7 */
+	0x03B8,0x03B9,0x03BA,0x03BB,0x03BC,0x03BD,0x03BE,0x03BF,/* 0xC8-0xCF */
+	0x03C0,0x03C1,0x03C3,0x03C4,0x03C5,0x03C6,0x03C7,0x03C8,/* 0xD0-0xD7 */
+	0x03C9,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xD8-0xDF */
+	0xFE35,0xFE36,0xFE39,0xFE3A,0xFE3F,0xFE40,0xFE3D,0xFE3E,/* 0xE0-0xE7 */
+	0xFE41,0xFE42,0xFE43,0xFE44,0x0000,0x0000,0xFE3B,0xFE3C,/* 0xE8-0xEF */
+	0xFE37,0xFE38,0xFE31,0x0000,0xFE33,0xFE34,0x0000,0x0000,/* 0xF0-0xF7 */
+};
+
+static wchar_t c2u_A7[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x0410,0x0411,0x0412,0x0413,0x0414,0x0415,0x0401,/* 0xA0-0xA7 */
+	0x0416,0x0417,0x0418,0x0419,0x041A,0x041B,0x041C,0x041D,/* 0xA8-0xAF */
+	0x041E,0x041F,0x0420,0x0421,0x0422,0x0423,0x0424,0x0425,/* 0xB0-0xB7 */
+	0x0426,0x0427,0x0428,0x0429,0x042A,0x042B,0x042C,0x042D,/* 0xB8-0xBF */
+	0x042E,0x042F,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xC0-0xC7 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xC8-0xCF */
+	0x0000,0x0430,0x0431,0x0432,0x0433,0x0434,0x0435,0x0451,/* 0xD0-0xD7 */
+	0x0436,0x0437,0x0438,0x0439,0x043A,0x043B,0x043C,0x043D,/* 0xD8-0xDF */
+	0x043E,0x043F,0x0440,0x0441,0x0442,0x0443,0x0444,0x0445,/* 0xE0-0xE7 */
+	0x0446,0x0447,0x0448,0x0449,0x044A,0x044B,0x044C,0x044D,/* 0xE8-0xEF */
+	0x044E,0x044F,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xF0-0xF7 */
+};
+
+static wchar_t c2u_A8[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x02CA,0x02CB,0x02D9,0x2013,0x2015,0x2025,0x2035,0x2105,/* 0x40-0x47 */
+	0x2109,0x2196,0x2197,0x2198,0x2199,0x2215,0x221F,0x2223,/* 0x48-0x4F */
+	0x2252,0x2266,0x2267,0x22BF,0x2550,0x2551,0x2552,0x2553,/* 0x50-0x57 */
+	0x2554,0x2555,0x2556,0x2557,0x2558,0x2559,0x255A,0x255B,/* 0x58-0x5F */
+	0x255C,0x255D,0x255E,0x255F,0x2560,0x2561,0x2562,0x2563,/* 0x60-0x67 */
+	0x2564,0x2565,0x2566,0x2567,0x2568,0x2569,0x256A,0x256B,/* 0x68-0x6F */
+	0x256C,0x256D,0x256E,0x256F,0x2570,0x2571,0x2572,0x2573,/* 0x70-0x77 */
+	0x2581,0x2582,0x2583,0x2584,0x2585,0x2586,0x2587,0x0000,/* 0x78-0x7F */
+	
+	0x2588,0x2589,0x258A,0x258B,0x258C,0x258D,0x258E,0x258F,/* 0x80-0x87 */
+	0x2593,0x2594,0x2595,0x25BC,0x25BD,0x25E2,0x25E3,0x25E4,/* 0x88-0x8F */
+	0x25E5,0x2609,0x2295,0x3012,0x301D,0x301E,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x0101,0x00E1,0x01CE,0x00E0,0x0113,0x00E9,0x011B,/* 0xA0-0xA7 */
+	0x00E8,0x012B,0x00ED,0x01D0,0x00EC,0x014D,0x00F3,0x01D2,/* 0xA8-0xAF */
+	0x00F2,0x016B,0x00FA,0x01D4,0x00F9,0x01D6,0x01D8,0x01DA,/* 0xB0-0xB7 */
+	0x01DC,0x00FC,0x00EA,0x0251,0x0000,0x0144,0x0148,0x0000,/* 0xB8-0xBF */
+	0x0261,0x0000,0x0000,0x0000,0x0000,0x3105,0x3106,0x3107,/* 0xC0-0xC7 */
+	0x3108,0x3109,0x310A,0x310B,0x310C,0x310D,0x310E,0x310F,/* 0xC8-0xCF */
+	0x3110,0x3111,0x3112,0x3113,0x3114,0x3115,0x3116,0x3117,/* 0xD0-0xD7 */
+	0x3118,0x3119,0x311A,0x311B,0x311C,0x311D,0x311E,0x311F,/* 0xD8-0xDF */
+	0x3120,0x3121,0x3122,0x3123,0x3124,0x3125,0x3126,0x3127,/* 0xE0-0xE7 */
+	0x3128,0x3129,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xE8-0xEF */
+};
+
+static wchar_t c2u_A9[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x3021,0x3022,0x3023,0x3024,0x3025,0x3026,0x3027,0x3028,/* 0x40-0x47 */
+	0x3029,0x32A3,0x338E,0x338F,0x339C,0x339D,0x339E,0x33A1,/* 0x48-0x4F */
+	0x33C4,0x33CE,0x33D1,0x33D2,0x33D5,0xFE30,0xFFE2,0xFFE4,/* 0x50-0x57 */
+	0x0000,0x2121,0x3231,0x0000,0x2010,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x30FC,0x309B,0x309C,0x30FD,0x30FE,0x3006,0x309D,0x309E,/* 0x60-0x67 */
+	0xFE49,0xFE4A,0xFE4B,0xFE4C,0xFE4D,0xFE4E,0xFE4F,0xFE50,/* 0x68-0x6F */
+	0xFE51,0xFE52,0xFE54,0xFE55,0xFE56,0xFE57,0xFE59,0xFE5A,/* 0x70-0x77 */
+	0xFE5B,0xFE5C,0xFE5D,0xFE5E,0xFE5F,0xFE60,0xFE61,0x0000,/* 0x78-0x7F */
+	
+	0xFE62,0xFE63,0xFE64,0xFE65,0xFE66,0xFE68,0xFE69,0xFE6A,/* 0x80-0x87 */
+	0xFE6B,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x3007,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x0000,0x0000,0x0000,0x2500,0x2501,0x2502,0x2503,/* 0xA0-0xA7 */
+	0x2504,0x2505,0x2506,0x2507,0x2508,0x2509,0x250A,0x250B,/* 0xA8-0xAF */
+	0x250C,0x250D,0x250E,0x250F,0x2510,0x2511,0x2512,0x2513,/* 0xB0-0xB7 */
+	0x2514,0x2515,0x2516,0x2517,0x2518,0x2519,0x251A,0x251B,/* 0xB8-0xBF */
+	0x251C,0x251D,0x251E,0x251F,0x2520,0x2521,0x2522,0x2523,/* 0xC0-0xC7 */
+	0x2524,0x2525,0x2526,0x2527,0x2528,0x2529,0x252A,0x252B,/* 0xC8-0xCF */
+	0x252C,0x252D,0x252E,0x252F,0x2530,0x2531,0x2532,0x2533,/* 0xD0-0xD7 */
+	0x2534,0x2535,0x2536,0x2537,0x2538,0x2539,0x253A,0x253B,/* 0xD8-0xDF */
+	0x253C,0x253D,0x253E,0x253F,0x2540,0x2541,0x2542,0x2543,/* 0xE0-0xE7 */
+	0x2544,0x2545,0x2546,0x2547,0x2548,0x2549,0x254A,0x254B,/* 0xE8-0xEF */
+};
+
+static wchar_t c2u_AA[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x72DC,0x72DD,0x72DF,0x72E2,0x72E3,0x72E4,0x72E5,0x72E6,/* 0x40-0x47 */
+	0x72E7,0x72EA,0x72EB,0x72F5,0x72F6,0x72F9,0x72FD,0x72FE,/* 0x48-0x4F */
+	0x72FF,0x7300,0x7302,0x7304,0x7305,0x7306,0x7307,0x7308,/* 0x50-0x57 */
+	0x7309,0x730B,0x730C,0x730D,0x730F,0x7310,0x7311,0x7312,/* 0x58-0x5F */
+	0x7314,0x7318,0x7319,0x731A,0x731F,0x7320,0x7323,0x7324,/* 0x60-0x67 */
+	0x7326,0x7327,0x7328,0x732D,0x732F,0x7330,0x7332,0x7333,/* 0x68-0x6F */
+	0x7335,0x7336,0x733A,0x733B,0x733C,0x733D,0x7340,0x7341,/* 0x70-0x77 */
+	0x7342,0x7343,0x7344,0x7345,0x7346,0x7347,0x7348,0x0000,/* 0x78-0x7F */
+	
+	0x7349,0x734A,0x734B,0x734C,0x734E,0x734F,0x7351,0x7353,/* 0x80-0x87 */
+	0x7354,0x7355,0x7356,0x7358,0x7359,0x735A,0x735B,0x735C,/* 0x88-0x8F */
+	0x735D,0x735E,0x735F,0x7361,0x7362,0x7363,0x7364,0x7365,/* 0x90-0x97 */
+	0x7366,0x7367,0x7368,0x7369,0x736A,0x736B,0x736E,0x7370,/* 0x98-0x9F */
+	0x7371,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xA0-0xA7 */
+};
+
+static wchar_t c2u_AB[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7372,0x7373,0x7374,0xF9A7,0x7376,0x7377,0x7378,0x7379,/* 0x40-0x47 */
+	0x737A,0x737B,0x737C,0x737D,0x737F,0x7380,0x7381,0x7382,/* 0x48-0x4F */
+	0x7383,0x7385,0x7386,0x7388,0x738A,0x738C,0x738D,0x738F,/* 0x50-0x57 */
+	0x7390,0x7392,0x7393,0x7394,0x7395,0x7397,0x7398,0x7399,/* 0x58-0x5F */
+	0x739A,0x739C,0x739D,0x739E,0x73A0,0x73A1,0x73A3,0x73A4,/* 0x60-0x67 */
+	0x73A5,0x73A6,0x73A7,0x73A8,0x73AA,0x73AC,0x73AD,0x73B1,/* 0x68-0x6F */
+	0x73B4,0x73B5,0x73B6,0x73B8,0x73B9,0x73BC,0x73BD,0x73BE,/* 0x70-0x77 */
+	0x73BF,0x73C1,0x73C3,0x73C4,0x73C5,0x73C6,0x73C7,0x0000,/* 0x78-0x7F */
+	
+	0x73CB,0x73CC,0x73CE,0x73D2,0x73D3,0x73D4,0x73D5,0x73D6,/* 0x80-0x87 */
+	0x73D7,0x73D8,0x73DA,0x73DB,0x73DC,0x73DD,0x73DF,0x73E1,/* 0x88-0x8F */
+	0x73E2,0x73E3,0x73E4,0x73E6,0x73E8,0x73EA,0x73EB,0x73EC,/* 0x90-0x97 */
+	0x73EE,0x73EF,0x73F0,0x73F1,0x73F3,0x73F4,0x73F5,0x73F6,/* 0x98-0x9F */
+	0x73F7,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xA0-0xA7 */
+};
+
+static wchar_t c2u_AC[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x73F8,0x73F9,0x73FA,0x73FB,0x73FC,0x73FD,0x73FE,0x73FF,/* 0x40-0x47 */
+	0x7400,0x7401,0x7402,0x7404,0x7407,0x7408,0x740B,0x740C,/* 0x48-0x4F */
+	0x740D,0x740E,0x7411,0x7412,0x7413,0x7414,0x7415,0x7416,/* 0x50-0x57 */
+	0x7417,0x7418,0x7419,0x741C,0x741D,0x741E,0x741F,0x7420,/* 0x58-0x5F */
+	0x7421,0x7423,0x7424,0x7427,0x7429,0x742B,0x742D,0x742F,/* 0x60-0x67 */
+	0x7431,0x7432,0x7437,0x7438,0x7439,0x743A,0x743B,0x743D,/* 0x68-0x6F */
+	0x743E,0x743F,0x7440,0x7442,0x7443,0x7444,0x7445,0x7446,/* 0x70-0x77 */
+	0x7447,0x7448,0x7449,0x744A,0x744B,0x744C,0x744D,0x0000,/* 0x78-0x7F */
+	
+	0x744E,0x744F,0x7450,0x7451,0x7452,0x7453,0x7454,0x7456,/* 0x80-0x87 */
+	0x7458,0x745D,0x7460,0x7461,0x7462,0x7463,0x7464,0x7465,/* 0x88-0x8F */
+	0x7466,0x7467,0x7468,0xF9AE,0x746A,0x746B,0x746C,0x746E,/* 0x90-0x97 */
+	0x746F,0x7471,0x7472,0x7473,0x7474,0x7475,0x7478,0x7479,/* 0x98-0x9F */
+	0x747A,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xA0-0xA7 */
+};
+
+static wchar_t c2u_AD[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x747B,0x747C,0x747D,0x747F,0x7482,0x7484,0x7485,0x7486,/* 0x40-0x47 */
+	0x7488,0xF994,0x748A,0x748C,0x748D,0x748F,0x7491,0x7492,/* 0x48-0x4F */
+	0x7493,0x7494,0x7495,0x7496,0x7497,0xF9EF,0x7499,0x749A,/* 0x50-0x57 */
+	0x749B,0x749D,0x749F,0x74A0,0x74A1,0x74A2,0x74A3,0x74A4,/* 0x58-0x5F */
+	0x74A5,0x74A6,0x74AA,0x74AB,0x74AC,0x74AD,0x74AE,0x74AF,/* 0x60-0x67 */
+	0x74B0,0x74B1,0x74B2,0x74B3,0x74B4,0x74B5,0x74B6,0x74B7,/* 0x68-0x6F */
+	0x74B8,0x74B9,0x74BB,0x74BC,0x74BD,0x74BE,0x74BF,0x74C0,/* 0x70-0x77 */
+	0x74C1,0x74C2,0x74C3,0x74C4,0x74C5,0x74C6,0x74C7,0x0000,/* 0x78-0x7F */
+	
+	0x74C8,0x74C9,0x74CA,0x74CB,0x74CC,0x74CD,0x74CE,0x74CF,/* 0x80-0x87 */
+	0x74D0,0x74D1,0x74D3,0x74D4,0x74D5,0x74D6,0x74D7,0x74D8,/* 0x88-0x8F */
+	0x74D9,0x74DA,0x74DB,0x74DD,0x74DF,0x74E1,0x74E5,0x74E7,/* 0x90-0x97 */
+	0x74E8,0x74E9,0x74EA,0x74EB,0x74EC,0x74ED,0x74F0,0x74F1,/* 0x98-0x9F */
+	0x74F2,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xA0-0xA7 */
+};
+
+static wchar_t c2u_AE[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x74F3,0x74F5,0x74F8,0x74F9,0x74FA,0x74FB,0x74FC,0x74FD,/* 0x40-0x47 */
+	0x74FE,0x7500,0x7501,0x7502,0x7503,0x7505,0x7506,0x7507,/* 0x48-0x4F */
+	0x7508,0x7509,0x750A,0x750B,0x750C,0x750E,0x7510,0x7512,/* 0x50-0x57 */
+	0x7514,0x7515,0x7516,0x7517,0x751B,0x751D,0x751E,0x7520,/* 0x58-0x5F */
+	0x7521,0x7522,0x7523,0x7524,0x7526,0x7527,0x752A,0x752E,/* 0x60-0x67 */
+	0x7534,0x7536,0x7539,0x753C,0x753D,0x753F,0x7541,0x7542,/* 0x68-0x6F */
+	0x7543,0x7544,0x7546,0x7547,0x7549,0x754A,0x754D,0x7550,/* 0x70-0x77 */
+	0x7551,0x7552,0x7553,0x7555,0x7556,0x7557,0x7558,0x0000,/* 0x78-0x7F */
+	
+	0x755D,0x755E,0x755F,0x7560,0x7561,0x7562,0x7563,0x7564,/* 0x80-0x87 */
+	0x7567,0x7568,0x7569,0x756B,0x756C,0x756D,0x756E,0x756F,/* 0x88-0x8F */
+	0xF962,0x7571,0x7573,0x7575,0x7576,0x7577,0x757A,0x757B,/* 0x90-0x97 */
+	0x757C,0x757D,0x757E,0x7580,0x7581,0x7582,0x7584,0x7585,/* 0x98-0x9F */
+	0x7587,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xA0-0xA7 */
+};
+
+static wchar_t c2u_AF[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7588,0x7589,0x758A,0x758C,0x758D,0x758E,0x7590,0x7593,/* 0x40-0x47 */
+	0x7595,0x7598,0x759B,0x759C,0x759E,0x75A2,0x75A6,0x75A7,/* 0x48-0x4F */
+	0x75A8,0x75A9,0x75AA,0x75AD,0x75B6,0x75B7,0x75BA,0x75BB,/* 0x50-0x57 */
+	0x75BF,0x75C0,0x75C1,0x75C6,0x75CB,0x75CC,0x75CE,0x75CF,/* 0x58-0x5F */
+	0x75D0,0x75D1,0x75D3,0x75D7,0x75D9,0x75DA,0x75DC,0x75DD,/* 0x60-0x67 */
+	0x75DF,0x75E0,0x75E1,0x75E5,0x75E9,0x75EC,0x75ED,0x75EE,/* 0x68-0x6F */
+	0x75EF,0x75F2,0x75F3,0x75F5,0x75F6,0x75F7,0x75F8,0x75FA,/* 0x70-0x77 */
+	0x75FB,0x75FD,0x75FE,0x7602,0x7604,0x7606,0x7607,0x0000,/* 0x78-0x7F */
+	
+	0x7608,0x7609,0x760B,0x760D,0x760E,0x760F,0x7611,0x7612,/* 0x80-0x87 */
+	0x7613,0x7614,0x7616,0x761A,0x761C,0x761D,0x761E,0x7621,/* 0x88-0x8F */
+	0x7623,0x7627,0x7628,0x762C,0x762E,0x762F,0x7631,0x7632,/* 0x90-0x97 */
+	0x7636,0x7637,0x7639,0x763A,0x763B,0x763D,0x7641,0xF9C1,/* 0x98-0x9F */
+	0x7644,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xA0-0xA7 */
+};
+
+static wchar_t c2u_B0[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7645,0x7646,0x7647,0x7648,0x7649,0x764A,0x764B,0x764E,/* 0x40-0x47 */
+	0x764F,0x7650,0x7651,0x7652,0x7653,0x7655,0x7657,0x7658,/* 0x48-0x4F */
+	0x7659,0x765A,0x765B,0x765D,0x765F,0x7660,0x7661,0x7662,/* 0x50-0x57 */
+	0x7664,0x7665,0x7666,0x7667,0x7668,0xF90E,0x766A,0x766C,/* 0x58-0x5F */
+	0x766D,0x766E,0x7670,0x7671,0x7672,0x7673,0x7674,0x7675,/* 0x60-0x67 */
+	0x7676,0x7677,0x7679,0x767A,0x767C,0x767F,0x7680,0x7681,/* 0x68-0x6F */
+	0x7683,0x7685,0x7689,0x768A,0x768C,0x768D,0x768F,0x7690,/* 0x70-0x77 */
+	0x7692,0x7694,0x7695,0x7697,0x7698,0x769A,0x769B,0x0000,/* 0x78-0x7F */
+	
+	0x769C,0x769D,0x769E,0x769F,0x76A0,0x76A1,0x76A2,0x76A3,/* 0x80-0x87 */
+	0x76A5,0x76A6,0x76A7,0x76A8,0x76A9,0x76AA,0x76AB,0x76AC,/* 0x88-0x8F */
+	0x76AD,0x76AF,0x76B0,0x76B3,0x76B5,0x76B6,0x76B7,0x76B8,/* 0x90-0x97 */
+	0x76B9,0x76BA,0x76BB,0x76BC,0x76BD,0x76BE,0x76C0,0x76C1,/* 0x98-0x9F */
+	0x76C3,0x554A,0x963F,0x57C3,0x6328,0x54CE,0x5509,0x54C0,/* 0xA0-0xA7 */
+	0x7691,0x764C,0x853C,0x77EE,0x827E,0x788D,0x7231,0x9698,/* 0xA8-0xAF */
+	0x978D,0x6C28,0x5B89,0x4FFA,0x6309,0x6697,0x5CB8,0x80FA,/* 0xB0-0xB7 */
+	0x6848,0x80AE,0x6602,0x76CE,0x51F9,0x6556,0x71AC,0x7FF1,/* 0xB8-0xBF */
+	0x8884,0x50B2,0x5965,0x61CA,0x6FB3,0x82AD,0x634C,0x6252,/* 0xC0-0xC7 */
+	0x53ED,0x5427,0x7B06,0x516B,0x75A4,0x5DF4,0x62D4,0x8DCB,/* 0xC8-0xCF */
+	0x9776,0x628A,0x8019,0x575D,0x9738,0x7F62,0x7238,0x767D,/* 0xD0-0xD7 */
+	0x67CF,0x767E,0x6446,0x4F70,0x8D25,0x62DC,0x7A17,0x6591,/* 0xD8-0xDF */
+	0x73ED,0x642C,0x6273,0x822C,0x9881,0x677F,0x7248,0x626E,/* 0xE0-0xE7 */
+	0x62CC,0x4F34,0x74E3,0x534A,0x529E,0x7ECA,0x90A6,0x5E2E,/* 0xE8-0xEF */
+	0x6886,0x699C,0x8180,0x7ED1,0x68D2,0x78C5,0x868C,0x9551,/* 0xF0-0xF7 */
+	0x508D,0x8C24,0x82DE,0x80DE,0x5305,0x8912,0x5265,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_B1[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x76C4,0x76C7,0x76C9,0x76CB,0x76CC,0x76D3,0x76D5,0x76D9,/* 0x40-0x47 */
+	0x76DA,0x76DC,0x76DD,0x76DE,0x76E0,0x76E1,0x76E2,0x76E3,/* 0x48-0x4F */
+	0x76E4,0x76E6,0xF933,0x76E8,0x76E9,0x76EA,0x76EB,0x76EC,/* 0x50-0x57 */
+	0x76ED,0x76F0,0x76F3,0x76F5,0x76F6,0x76F7,0x76FA,0x76FB,/* 0x58-0x5F */
+	0x76FD,0x76FF,0x7700,0x7702,0x7703,0x7705,0x7706,0x770A,/* 0x60-0x67 */
+	0x770C,0x770E,0x770F,0x7710,0x7711,0x7712,0x7713,0x7714,/* 0x68-0x6F */
+	0x7715,0x7716,0x7717,0x7718,0x771B,0x771C,0x771D,0x771E,/* 0x70-0x77 */
+	0x7721,0x7723,0x7724,0x7725,0x7727,0x772A,0x772B,0x0000,/* 0x78-0x7F */
+	
+	0x772C,0x772E,0x7730,0x7731,0x7732,0x7733,0x7734,0x7739,/* 0x80-0x87 */
+	0x773B,0x773D,0x773E,0x773F,0x7742,0x7744,0x7745,0x7746,/* 0x88-0x8F */
+	0x7748,0x7749,0x774A,0x774B,0x774C,0x774D,0x774E,0x774F,/* 0x90-0x97 */
+	0x7752,0x7753,0x7754,0x7755,0x7756,0x7757,0x7758,0x7759,/* 0x98-0x9F */
+	0x775C,0x8584,0x96F9,0x4FDD,0x5821,0x9971,0x5B9D,0x62B1,/* 0xA0-0xA7 */
+	0x62A5,0xFA06,0x8C79,0x9C8D,0x7206,0x676F,0x7891,0x60B2,/* 0xA8-0xAF */
+	0x5351,0xF963,0x8F88,0x80CC,0x8D1D,0x94A1,0x500D,0x72C8,/* 0xB0-0xB7 */
+	0x5907,0x60EB,0x7119,0x88AB,0x5954,0x82EF,0x672C,0x7B28,/* 0xB8-0xBF */
+	0x5D29,0x7EF7,0x752D,0x6CF5,0x8E66,0x8FF8,0x903C,0x9F3B,/* 0xC0-0xC7 */
+	0x6BD4,0x9119,0x7B14,0x5F7C,0x78A7,0x84D6,0x853D,0x6BD5,/* 0xC8-0xCF */
+	0x6BD9,0x6BD6,0x5E01,0x5E87,0x75F9,0x95ED,0x655D,0x5F0A,/* 0xD0-0xD7 */
+	0x5FC5,0x8F9F,0x58C1,0x81C2,0x907F,0x965B,0x97AD,0x8FB9,/* 0xD8-0xDF */
+	0x7F16,0x8D2C,0x6241,0xF965,0x53D8,0x535E,0x8FA8,0x8FA9,/* 0xE0-0xE7 */
+	0x8FAB,0x904D,0x6807,0x5F6A,0x8198,0x8868,0x9CD6,0x618B,/* 0xE8-0xEF */
+	0x522B,0x762A,0x5F6C,0x658C,0x6FD2,0x6EE8,0x5BBE,0x6448,/* 0xF0-0xF7 */
+	0x5175,0x51B0,0x67C4,0x4E19,0x79C9,0x997C,0x70B3,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_B2[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x775D,0x775E,0x775F,0x7760,0x7764,0x7767,0x7769,0x776A,/* 0x40-0x47 */
+	0x776D,0x776E,0x776F,0x7770,0x7771,0x7772,0x7773,0x7774,/* 0x48-0x4F */
+	0x7775,0x7776,0x7777,0x7778,0x777A,0x777B,0x777C,0x7781,/* 0x50-0x57 */
+	0x7782,0x7783,0x7786,0x7787,0x7788,0x7789,0x778A,0x778B,/* 0x58-0x5F */
+	0x778F,0x7790,0x7793,0x7794,0x7795,0x7796,0x7797,0x7798,/* 0x60-0x67 */
+	0x7799,0x779A,0x779B,0x779C,0x779D,0x779E,0x77A1,0x77A3,/* 0x68-0x6F */
+	0x77A4,0x77A6,0x77A8,0x77AB,0x77AD,0x77AE,0x77AF,0x77B1,/* 0x70-0x77 */
+	0x77B2,0x77B4,0x77B6,0x77B7,0x77B8,0x77B9,0x77BA,0x0000,/* 0x78-0x7F */
+	
+	0x77BC,0x77BE,0x77C0,0x77C1,0x77C2,0x77C3,0x77C4,0x77C5,/* 0x80-0x87 */
+	0x77C6,0x77C7,0x77C8,0x77C9,0x77CA,0x77CB,0x77CC,0x77CE,/* 0x88-0x8F */
+	0x77CF,0x77D0,0x77D1,0x77D2,0x77D3,0x77D4,0x77D5,0x77D6,/* 0x90-0x97 */
+	0x77D8,0x77D9,0x77DA,0x77DD,0x77DE,0x77DF,0x77E0,0x77E1,/* 0x98-0x9F */
+	0x77E4,0x75C5,0x5E76,0x73BB,0x83E0,0x64AD,0x62E8,0x94B5,/* 0xA0-0xA7 */
+	0x6CE2,0x535A,0x52C3,0x640F,0x94C2,0x7B94,0x4F2F,0x5E1B,/* 0xA8-0xAF */
+	0x8236,0x8116,0x818A,0x6E24,0x6CCA,0x9A73,0x6355,0x535C,/* 0xB0-0xB7 */
+	0x54FA,0x8865,0x57E0,0xF967,0x5E03,0x6B65,0x7C3F,0x90E8,/* 0xB8-0xBF */
+	0x6016,0x64E6,0x731C,0x88C1,0x6750,0x624D,0x8D22,0x776C,/* 0xC0-0xC7 */
+	0x8E29,0x91C7,0x5F69,0x83DC,0x8521,0x9910,0x53C2,0x8695,/* 0xC8-0xCF */
+	0x6B8B,0x60ED,0x60E8,0x707F,0x82CD,0x8231,0x4ED3,0x6CA7,/* 0xD0-0xD7 */
+	0x85CF,0x64CD,0x7CD9,0x69FD,0x66F9,0x8349,0x5395,0x7B56,/* 0xD8-0xDF */
+	0x4FA7,0x518C,0x6D4B,0x5C42,0x8E6D,0x63D2,0x53C9,0x832C,/* 0xE0-0xE7 */
+	0xF9FE,0x67E5,0x78B4,0x643D,0x5BDF,0x5C94,0x5DEE,0x8BE7,/* 0xE8-0xEF */
+	0x62C6,0x67F4,0x8C7A,0x6400,0x63BA,0x8749,0x998B,0x8C17,/* 0xF0-0xF7 */
+	0x7F20,0x94F2,0x4EA7,0x9610,0x98A4,0x660C,0x7316,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_B3[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x77E6,0x77E8,0x77EA,0x77EF,0x77F0,0x77F1,0x77F2,0x77F4,/* 0x40-0x47 */
+	0x77F5,0x77F7,0x77F9,0x77FA,0x77FB,0x77FC,0x7803,0x7804,/* 0x48-0x4F */
+	0x7805,0x7806,0x7807,0x7808,0x780A,0x780B,0x780E,0x780F,/* 0x50-0x57 */
+	0x7810,0x7813,0x7815,0x7819,0x781B,0x781E,0x7820,0x7821,/* 0x58-0x5F */
+	0x7822,0x7824,0x7828,0x782A,0x782B,0x782E,0x782F,0x7831,/* 0x60-0x67 */
+	0x7832,0x7833,0x7835,0x7836,0x783D,0x783F,0x7841,0x7842,/* 0x68-0x6F */
+	0x7843,0x7844,0x7846,0x7848,0x7849,0x784A,0x784B,0x784D,/* 0x70-0x77 */
+	0x784F,0x7851,0x7853,0x7854,0x7858,0x7859,0x785A,0x0000,/* 0x78-0x7F */
+	
+	0x785B,0x785C,0x785E,0x785F,0x7860,0x7861,0x7862,0x7863,/* 0x80-0x87 */
+	0x7864,0x7865,0x7866,0x7867,0x7868,0x7869,0x786F,0x7870,/* 0x88-0x8F */
+	0x7871,0x7872,0x7873,0x7874,0x7875,0x7876,0x7878,0x7879,/* 0x90-0x97 */
+	0x787A,0x787B,0x787D,0x787E,0x787F,0x7880,0x7881,0x7882,/* 0x98-0x9F */
+	0x7883,0x573A,0x5C1D,0x5E38,0x957F,0x507F,0x80A0,0x5382,/* 0xA0-0xA7 */
+	0x655E,0x7545,0x5531,0x5021,0x8D85,0x6284,0x949E,0x671D,/* 0xA8-0xAF */
+	0x5632,0x6F6E,0x5DE2,0x5435,0x7092,0x8F66,0x626F,0x64A4,/* 0xB0-0xB7 */
+	0x63A3,0x5F7B,0x6F88,0x90F4,0x81E3,0xF971,0x5C18,0x6668,/* 0xB8-0xBF */
+	0x5FF1,0x6C89,0x9648,0x8D81,0x886C,0x6491,0x79F0,0x57CE,/* 0xC0-0xC7 */
+	0x6A59,0x6210,0x5448,0x4E58,0x7A0B,0x60E9,0x6F84,0x8BDA,/* 0xC8-0xCF */
+	0x627F,0x901E,0x9A8B,0x79E4,0x5403,0x75F4,0x6301,0x5319,/* 0xD0-0xD7 */
+	0x6C60,0x8FDF,0x5F1B,0x9A70,0x803B,0x9F7F,0x4F88,0x5C3A,/* 0xD8-0xDF */
+	0x8D64,0x7FC5,0x65A5,0x70BD,0x5145,0x51B2,0x866B,0x5D07,/* 0xE0-0xE7 */
+	0x5BA0,0x62BD,0x916C,0x7574,0x8E0C,0x7A20,0x6101,0x7B79,/* 0xE8-0xEF */
+	0x4EC7,0x7EF8,0x7785,0x4E11,0x81ED,0x521D,0x51FA,0x6A71,/* 0xF0-0xF7 */
+	0x53A8,0x8E87,0x9504,0x96CF,0x6EC1,0x9664,0x695A,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_B4[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7884,0x7885,0x7886,0x7888,0x788A,0x788B,0x788F,0x7890,/* 0x40-0x47 */
+	0x7892,0x7894,0x7895,0x7896,0x7899,0x789D,0x789E,0x78A0,/* 0x48-0x4F */
+	0x78A2,0x78A4,0x78A6,0x78A8,0x78A9,0x78AA,0x78AB,0x78AC,/* 0x50-0x57 */
+	0x78AD,0x78AE,0x78AF,0x78B5,0x78B6,0x78B7,0x78B8,0x78BA,/* 0x58-0x5F */
+	0x78BB,0x78BC,0x78BD,0x78BF,0x78C0,0x78C2,0x78C3,0x78C4,/* 0x60-0x67 */
+	0x78C6,0x78C7,0x78C8,0x78CC,0x78CD,0x78CE,0x78CF,0x78D1,/* 0x68-0x6F */
+	0x78D2,0x78D3,0x78D6,0x78D7,0x78D8,0x78DA,0x78DB,0x78DC,/* 0x70-0x77 */
+	0x78DD,0x78DE,0x78DF,0x78E0,0x78E1,0x78E2,0x78E3,0x0000,/* 0x78-0x7F */
+	
+	0x78E4,0x78E5,0x78E6,0x78E7,0x78E9,0x78EA,0x78EB,0x78ED,/* 0x80-0x87 */
+	0x78EE,0x78EF,0x78F0,0x78F1,0x78F3,0x78F5,0x78F6,0x78F8,/* 0x88-0x8F */
+	0x78F9,0xF964,0x78FC,0x78FD,0x78FE,0x78FF,0x7900,0x7902,/* 0x90-0x97 */
+	0x7903,0x7904,0x7906,0x7907,0x7908,0x7909,0x790A,0x790B,/* 0x98-0x9F */
+	0x790C,0x7840,0x50A8,0x77D7,0x6410,0x89E6,0x5904,0x63E3,/* 0xA0-0xA7 */
+	0x5DDD,0x7A7F,0x693D,0x4F20,0x8239,0x5598,0xF905,0x75AE,/* 0xA8-0xAF */
+	0x7A97,0x5E62,0x5E8A,0x95EF,0x521B,0x5439,0x708A,0x6376,/* 0xB0-0xB7 */
+	0x9524,0x5782,0x6625,0x693F,0x9187,0x5507,0x6DF3,0x7EAF,/* 0xB8-0xBF */
+	0x8822,0x6233,0x7EF0,0x75B5,0x8328,0x78C1,0x96CC,0x8F9E,/* 0xC0-0xC7 */
+	0x6148,0x74F7,0x8BCD,0x6B64,0xF9FF,0x8D50,0x6B21,0x806A,/* 0xC8-0xCF */
+	0x8471,0x56F1,0x5306,0x4ECE,0x4E1B,0x51D1,0x7C97,0x918B,/* 0xD0-0xD7 */
+	0x7C07,0x4FC3,0x8E7F,0x7BE1,0x7A9C,0x6467,0x5D14,0x50AC,/* 0xD8-0xDF */
+	0x8106,0x7601,0x7CB9,0x6DEC,0x7FE0,0x6751,0x5B58,0x5BF8,/* 0xE0-0xE7 */
+	0x78CB,0x64AE,0x6413,0x63AA,0x632B,0x9519,0x642D,0x8FBE,/* 0xE8-0xEF */
+	0x7B54,0x7629,0x6253,0x5927,0x5446,0x6B79,0x50A3,0x6234,/* 0xF0-0xF7 */
+	0x5E26,0x6B86,0x4EE3,0x8D37,0x888B,0x5F85,0x902E,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_B5[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x790D,0x790E,0x790F,0x7910,0x7911,0x7912,0x7914,0x7915,/* 0x40-0x47 */
+	0x7916,0x7917,0x7918,0x7919,0x791A,0x791B,0x791C,0x791D,/* 0x48-0x4F */
+	0x791F,0x7920,0x7921,0x7922,0x7923,0x7925,0x7926,0x7927,/* 0x50-0x57 */
+	0x7928,0x7929,0xF985,0x792B,0x792C,0x792D,0x792E,0x792F,/* 0x58-0x5F */
+	0x7930,0x7931,0x7932,0x7933,0x7935,0x7936,0x7937,0x7938,/* 0x60-0x67 */
+	0x7939,0x793D,0x793F,0x7942,0x7943,0x7944,0x7945,0x7947,/* 0x68-0x6F */
+	0x794A,0x794B,0x794C,0x794D,0x794E,0x794F,0x7950,0x7951,/* 0x70-0x77 */
+	0x7952,0x7954,0x7955,0x7958,0x7959,0x7961,0x7963,0x0000,/* 0x78-0x7F */
+	
+	0x7964,0x7966,0x7969,0x796A,0x796B,0x796C,0x796E,0x7970,/* 0x80-0x87 */
+	0x7971,0x7972,0x7973,0x7974,0x7975,0x7976,0x7979,0x797B,/* 0x88-0x8F */
+	0x797C,0x797D,0x797E,0xF93C,0x7982,0x7983,0x7986,0x7987,/* 0x90-0x97 */
+	0x7988,0x7989,0x798B,0x798C,0x798D,0x798E,0x7990,0x7991,/* 0x98-0x9F */
+	0x7992,0x6020,0x803D,0x62C5,0xF95E,0x5355,0x90F8,0x63B8,/* 0xA0-0xA7 */
+	0x80C6,0x65E6,0x6C2E,0x4F46,0x60EE,0x6DE1,0x8BDE,0x5F39,/* 0xA8-0xAF */
+	0x86CB,0x5F53,0x6321,0x515A,0x8361,0x6863,0x5200,0x6363,/* 0xB0-0xB7 */
+	0x8E48,0x5012,0x5C9B,0x7977,0x5BFC,0x5230,0x7A3B,0x60BC,/* 0xB8-0xBF */
+	0x9053,0x76D7,0x5FB7,0x5F97,0x7684,0x8E6C,0x706F,0x767B,/* 0xC0-0xC7 */
+	0x7B49,0x77AA,0x51F3,0x9093,0x5824,0x4F4E,0x6EF4,0x8FEA,/* 0xC8-0xCF */
+	0x654C,0x7B1B,0x72C4,0x6DA4,0x7FDF,0x5AE1,0x62B5,0x5E95,/* 0xD0-0xD7 */
+	0x5730,0x8482,0x7B2C,0x5E1D,0x5F1F,0x9012,0x7F14,0x98A0,/* 0xD8-0xDF */
+	0x6382,0x6EC7,0x7898,0x70B9,0x5178,0x975B,0x57AB,0x7535,/* 0xE0-0xE7 */
+	0x4F43,0x7538,0x5E97,0x60E6,0x5960,0x6DC0,0x6BBF,0x7889,/* 0xE8-0xEF */
+	0x53FC,0x96D5,0x51CB,0x5201,0x6389,0x540A,0x9493,0x8C03,/* 0xF0-0xF7 */
+	0x8DCC,0x7239,0x789F,0x8776,0x8FED,0x8C0D,0x53E0,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_B6[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7993,0x7994,0x7995,0x7996,0x7997,0x7998,0x7999,0x799B,/* 0x40-0x47 */
+	0x799C,0x799D,0x799E,0x799F,0x79A0,0x79A1,0x79A2,0x79A3,/* 0x48-0x4F */
+	0x79A4,0x79A5,0x79A6,0x79A8,0x79A9,0x79AA,0x79AB,0x79AC,/* 0x50-0x57 */
+	0x79AD,0xF9B6,0x79AF,0x79B0,0x79B1,0x79B2,0x79B4,0x79B5,/* 0x58-0x5F */
+	0x79B6,0x79B7,0x79B8,0x79BC,0x79BF,0x79C2,0x79C4,0x79C5,/* 0x60-0x67 */
+	0x79C7,0x79C8,0x79CA,0x79CC,0x79CE,0x79CF,0x79D0,0x79D3,/* 0x68-0x6F */
+	0x79D4,0x79D6,0x79D7,0x79D9,0x79DA,0x79DB,0x79DC,0x79DD,/* 0x70-0x77 */
+	0x79DE,0x79E0,0x79E1,0x79E2,0x79E5,0x79E8,0x79EA,0x0000,/* 0x78-0x7F */
+	
+	0x79EC,0x79EE,0x79F1,0x79F2,0x79F3,0x79F4,0x79F5,0x79F6,/* 0x80-0x87 */
+	0x79F7,0x79F9,0x79FA,0x79FC,0x79FE,0x79FF,0x7A01,0x7A04,/* 0x88-0x8F */
+	0x7A05,0x7A07,0x7A08,0x7A09,0x7A0A,0x7A0C,0x7A0F,0x7A10,/* 0x90-0x97 */
+	0x7A11,0x7A12,0x7A13,0x7A15,0x7A16,0x7A18,0x7A19,0x7A1B,/* 0x98-0x9F */
+	0xF956,0x4E01,0x76EF,0x53EE,0x9489,0x9876,0x9F0E,0x952D,/* 0xA0-0xA7 */
+	0x5B9A,0x8BA2,0x4E22,0x4E1C,0x51AC,0x8463,0x61C2,0x52A8,/* 0xA8-0xAF */
+	0x680B,0x4F97,0x606B,0x51BB,0xFA05,0x515C,0x6296,0x6597,/* 0xB0-0xB7 */
+	0x9661,0x8C46,0x9017,0x75D8,0xFA26,0x7763,0x6BD2,0x728A,/* 0xB8-0xBF */
+	0x72EC,0x8BFB,0x5835,0x7779,0x8D4C,0x675C,0x9540,0x809A,/* 0xC0-0xC7 */
+	0xFA01,0x6E21,0x5992,0x7AEF,0x77ED,0x953B,0x6BB5,0x65AD,/* 0xC8-0xCF */
+	0x7F0E,0x5806,0x5151,0x961F,0x5BF9,0x58A9,0x5428,0x8E72,/* 0xD0-0xD7 */
+	0x6566,0x987F,0x56E4,0x949D,0x76FE,0x9041,0x6387,0x54C6,/* 0xD8-0xDF */
+	0x591A,0x593A,0x579B,0x8EB2,0x6735,0x8DFA,0x8235,0x5241,/* 0xE0-0xE7 */
+	0x60F0,0x5815,0x86FE,0x5CE8,0x9E45,0x4FC4,0x989D,0x8BB9,/* 0xE8-0xEF */
+	0x5A25,0x6076,0x5384,0x627C,0x904F,0x9102,0x997F,0x6069,/* 0xF0-0xF7 */
+	0x800C,0x513F,0x8033,0x5C14,0x9975,0x6D31,0x4E8C,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_B7[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7A1D,0x7A1F,0x7A21,0x7A22,0x7A24,0x7A25,0x7A26,0x7A27,/* 0x40-0x47 */
+	0x7A28,0x7A29,0x7A2A,0x7A2B,0x7A2C,0x7A2D,0x7A2E,0x7A2F,/* 0x48-0x4F */
+	0x7A30,0x7A31,0x7A32,0x7A34,0x7A35,0x7A36,0x7A38,0x7A3A,/* 0x50-0x57 */
+	0x7A3E,0x7A40,0x7A41,0x7A42,0x7A43,0x7A44,0x7A45,0x7A47,/* 0x58-0x5F */
+	0x7A48,0x7A49,0x7A4A,0x7A4B,0x7A4C,0x7A4D,0x7A4E,0x7A4F,/* 0x60-0x67 */
+	0x7A50,0x7A52,0x7A53,0x7A54,0x7A55,0x7A56,0x7A58,0x7A59,/* 0x68-0x6F */
+	0x7A5A,0x7A5B,0x7A5C,0x7A5D,0x7A5E,0x7A5F,0x7A60,0x7A61,/* 0x70-0x77 */
+	0x7A62,0x7A63,0x7A64,0x7A65,0x7A66,0x7A67,0x7A68,0x0000,/* 0x78-0x7F */
+	
+	0x7A69,0x7A6A,0x7A6B,0x7A6C,0x7A6D,0x7A6E,0x7A6F,0x7A71,/* 0x80-0x87 */
+	0x7A72,0x7A73,0x7A75,0x7A7B,0x7A7C,0x7A7D,0x7A7E,0x7A82,/* 0x88-0x8F */
+	0x7A85,0x7A87,0x7A89,0x7A8A,0x7A8B,0x7A8C,0x7A8E,0x7A8F,/* 0x90-0x97 */
+	0x7A90,0x7A93,0x7A94,0x7A99,0x7A9A,0x7A9B,0x7A9E,0x7AA1,/* 0x98-0x9F */
+	0x7AA2,0x8D30,0x53D1,0x7F5A,0x7B4F,0x4F10,0x4E4F,0x9600,/* 0xA0-0xA7 */
+	0x6CD5,0x73D0,0x85E9,0x5E06,0x756A,0x7FFB,0x6A0A,0x77FE,/* 0xA8-0xAF */
+	0x9492,0x7E41,0x51E1,0x70E6,0x53CD,0x8FD4,0x8303,0x8D29,/* 0xB0-0xB7 */
+	0x72AF,0x996D,0x6CDB,0x574A,0x82B3,0x65B9,0x80AA,0x623F,/* 0xB8-0xBF */
+	0x9632,0x59A8,0x4EFF,0x8BBF,0x7EBA,0x653E,0x83F2,0x975E,/* 0xC0-0xC7 */
+	0x5561,0x98DE,0x80A5,0x532A,0x8BFD,0x5420,0x80BA,0x5E9F,/* 0xC8-0xCF */
+	0x6CB8,0x8D39,0x82AC,0x915A,0x5429,0x6C1B,0x5206,0x7EB7,/* 0xD0-0xD7 */
+	0x575F,0x711A,0x6C7E,0x7C89,0x594B,0x4EFD,0x5FFF,0x6124,/* 0xD8-0xDF */
+	0x7CAA,0x4E30,0x5C01,0x67AB,0x8702,0x5CF0,0x950B,0x98CE,/* 0xE0-0xE7 */
+	0x75AF,0x70FD,0x9022,0x51AF,0x7F1D,0x8BBD,0x5949,0x51E4,/* 0xE8-0xEF */
+	0x4F5B,0x5426,0x592B,0x6577,0x80A4,0x5B75,0x6276,0x62C2,/* 0xF0-0xF7 */
+	0x8F90,0x5E45,0x6C1F,0x7B26,0x4F0F,0x4FD8,0x670D,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_B8[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7AA3,0x7AA4,0x7AA7,0x7AA9,0x7AAA,0x7AAB,0x7AAE,0x7AAF,/* 0x40-0x47 */
+	0x7AB0,0x7AB1,0x7AB2,0x7AB4,0x7AB5,0x7AB6,0x7AB7,0x7AB8,/* 0x48-0x4F */
+	0x7AB9,0x7ABA,0x7ABB,0x7ABC,0x7ABD,0x7ABE,0x7AC0,0x7AC1,/* 0x50-0x57 */
+	0x7AC2,0x7AC3,0x7AC4,0x7AC5,0x7AC6,0x7AC7,0x7AC8,0x7AC9,/* 0x58-0x5F */
+	0x7ACA,0x7ACC,0x7ACD,0x7ACE,0x7ACF,0x7AD0,0x7AD1,0x7AD2,/* 0x60-0x67 */
+	0x7AD3,0x7AD4,0x7AD5,0x7AD7,0x7AD8,0x7ADA,0x7ADB,0x7ADC,/* 0x68-0x6F */
+	0x7ADD,0x7AE1,0x7AE2,0x7AE4,0x7AE7,0x7AE8,0x7AE9,0x7AEA,/* 0x70-0x77 */
+	0x7AEB,0x7AEC,0x7AEE,0x7AF0,0x7AF1,0x7AF2,0x7AF3,0x0000,/* 0x78-0x7F */
+	
+	0x7AF4,0x7AF5,0x7AF6,0x7AF7,0x7AF8,0x7AFB,0x7AFC,0x7AFE,/* 0x80-0x87 */
+	0x7B00,0x7B01,0x7B02,0x7B05,0x7B07,0x7B09,0x7B0C,0x7B0D,/* 0x88-0x8F */
+	0x7B0E,0x7B10,0x7B12,0x7B13,0x7B16,0x7B17,0x7B18,0x7B1A,/* 0x90-0x97 */
+	0x7B1C,0x7B1D,0x7B1F,0x7B21,0x7B22,0x7B23,0x7B27,0x7B29,/* 0x98-0x9F */
+	0x7B2D,0x6D6E,0x6DAA,0xFA1B,0x88B1,0x5F17,0x752B,0x629A,/* 0xA0-0xA7 */
+	0x8F85,0x4FEF,0x91DC,0x65A7,0x812F,0x8151,0x5E9C,0x8150,/* 0xA8-0xAF */
+	0x8D74,0x526F,0x8986,0x8D4B,0x590D,0x5085,0x4ED8,0x961C,/* 0xB0-0xB7 */
+	0x7236,0x8179,0x8D1F,0x5BCC,0x8BA3,0x9644,0x5987,0x7F1A,/* 0xB8-0xBF */
+	0x5490,0x5676,0x560E,0x8BE5,0x6539,0x6982,0x9499,0x76D6,/* 0xC0-0xC7 */
+	0x6E89,0x5E72,0x7518,0x6746,0x67D1,0x7AFF,0x809D,0x8D76,/* 0xC8-0xCF */
+	0x611F,0x79C6,0x6562,0x8D63,0x5188,0x521A,0x94A2,0x7F38,/* 0xD0-0xD7 */
+	0x809B,0x7EB2,0x5C97,0x6E2F,0x6760,0x7BD9,0x768B,0x9AD8,/* 0xD8-0xDF */
+	0x818F,0x7F94,0x7CD5,0x641E,0x9550,0x7A3F,0x544A,0x54E5,/* 0xE0-0xE7 */
+	0x6B4C,0x6401,0x6208,0x9E3D,0x80F3,0x7599,0x5272,0x9769,/* 0xE8-0xEF */
+	0x845B,0x683C,0x86E4,0x9601,0x9694,0x94EC,0x4E2A,0x5404,/* 0xF0-0xF7 */
+	0x7ED9,0x6839,0x8DDF,0x8015,0xF901,0x5E9A,0x7FB9,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_B9[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7B2F,0x7B30,0x7B32,0x7B34,0x7B35,0x7B36,0x7B37,0x7B39,/* 0x40-0x47 */
+	0x7B3B,0x7B3D,0x7B3F,0x7B40,0x7B41,0x7B42,0x7B43,0x7B44,/* 0x48-0x4F */
+	0x7B46,0x7B48,0x7B4A,0x7B4D,0x7B4E,0x7B53,0x7B55,0x7B57,/* 0x50-0x57 */
+	0x7B59,0x7B5C,0x7B5E,0x7B5F,0x7B61,0x7B63,0x7B64,0x7B65,/* 0x58-0x5F */
+	0x7B66,0x7B67,0x7B68,0x7B69,0x7B6A,0x7B6B,0x7B6C,0x7B6D,/* 0x60-0x67 */
+	0x7B6F,0x7B70,0x7B73,0x7B74,0x7B76,0x7B78,0x7B7A,0x7B7C,/* 0x68-0x6F */
+	0x7B7D,0x7B7F,0x7B81,0x7B82,0x7B83,0x7B84,0x7B86,0x7B87,/* 0x70-0x77 */
+	0x7B88,0x7B89,0x7B8A,0x7B8B,0x7B8C,0x7B8E,0x7B8F,0x0000,/* 0x78-0x7F */
+	
+	0x7B91,0x7B92,0x7B93,0x7B96,0x7B98,0x7B99,0x7B9A,0x7B9B,/* 0x80-0x87 */
+	0x7B9E,0x7B9F,0x7BA0,0x7BA3,0x7BA4,0x7BA5,0x7BAE,0x7BAF,/* 0x88-0x8F */
+	0x7BB0,0x7BB2,0x7BB3,0x7BB5,0x7BB6,0x7BB7,0x7BB9,0x7BBA,/* 0x90-0x97 */
+	0x7BBB,0x7BBC,0x7BBD,0x7BBE,0x7BBF,0x7BC0,0x7BC2,0x7BC3,/* 0x98-0x9F */
+	0x7BC4,0x57C2,0x803F,0x6897,0x5DE5,0x653B,0x529F,0x606D,/* 0xA0-0xA7 */
+	0x9F9A,0x4F9B,0x8EAC,0x516C,0x5BAB,0x5F13,0x5DE9,0x6C5E,/* 0xA8-0xAF */
+	0x62F1,0x8D21,0x5171,0x94A9,0x52FE,0x6C9F,0x82DF,0x72D7,/* 0xB0-0xB7 */
+	0x57A2,0x6784,0x8D2D,0x591F,0x8F9C,0x83C7,0x5495,0x7B8D,/* 0xB8-0xBF */
+	0x4F30,0x6CBD,0x5B64,0x59D1,0x9F13,0x53E4,0x86CA,0x9AA8,/* 0xC0-0xC7 */
+	0x8C37,0x80A1,0x6545,0x987E,0x56FA,0x96C7,0x522E,0x74DC,/* 0xC8-0xCF */
+	0x5250,0x5BE1,0x6302,0x8902,0x4E56,0x62D0,0x602A,0x68FA,/* 0xD0-0xD7 */
+	0x5173,0x5B98,0x51A0,0x89C2,0x7BA1,0x9986,0x7F50,0x60EF,/* 0xD8-0xDF */
+	0x704C,0x8D2F,0x5149,0x5E7F,0x901B,0x7470,0x89C4,0x572D,/* 0xE0-0xE7 */
+	0x7845,0x5F52,0x9F9F,0x95FA,0x8F68,0x9B3C,0x8BE1,0x7678,/* 0xE8-0xEF */
+	0x6842,0x67DC,0x8DEA,0x8D35,0x523D,0x8F8A,0x6EDA,0x68CD,/* 0xF0-0xF7 */
+	0x9505,0x90ED,0x56FD,0x679C,0x88F9,0x8FC7,0x54C8,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_BA[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7BC5,0x7BC8,0x7BC9,0x7BCA,0x7BCB,0x7BCD,0x7BCE,0x7BCF,/* 0x40-0x47 */
+	0x7BD0,0x7BD2,0x7BD4,0x7BD5,0x7BD6,0x7BD7,0x7BD8,0x7BDB,/* 0x48-0x4F */
+	0x7BDC,0x7BDE,0x7BDF,0x7BE0,0x7BE2,0x7BE3,0x7BE4,0x7BE7,/* 0x50-0x57 */
+	0x7BE8,0x7BE9,0x7BEB,0x7BEC,0x7BED,0x7BEF,0x7BF0,0x7BF2,/* 0x58-0x5F */
+	0x7BF3,0x7BF4,0x7BF5,0x7BF6,0x7BF8,0x7BF9,0x7BFA,0x7BFB,/* 0x60-0x67 */
+	0x7BFD,0x7BFF,0x7C00,0x7C01,0x7C02,0x7C03,0x7C04,0x7C05,/* 0x68-0x6F */
+	0x7C06,0x7C08,0x7C09,0x7C0A,0x7C0D,0x7C0E,0x7C10,0x7C11,/* 0x70-0x77 */
+	0x7C12,0x7C13,0x7C14,0x7C15,0x7C17,0x7C18,0x7C19,0x0000,/* 0x78-0x7F */
+	
+	0x7C1A,0x7C1B,0x7C1C,0x7C1D,0x7C1E,0x7C20,0x7C21,0x7C22,/* 0x80-0x87 */
+	0x7C23,0x7C24,0x7C25,0x7C28,0x7C29,0x7C2B,0x7C2C,0x7C2D,/* 0x88-0x8F */
+	0x7C2E,0x7C2F,0x7C30,0x7C31,0x7C32,0x7C33,0x7C34,0x7C35,/* 0x90-0x97 */
+	0x7C36,0x7C37,0x7C39,0x7C3A,0x7C3B,0x7C3C,0x7C3D,0xF9A6,/* 0x98-0x9F */
+	0x7C42,0x9AB8,0x5B69,0x6D77,0x6C26,0x4EA5,0x5BB3,0x9A87,/* 0xA0-0xA7 */
+	0x9163,0x61A8,0x90AF,0x97E9,0x542B,0x6DB5,0x5BD2,0x51FD,/* 0xA8-0xAF */
+	0x558A,0x7F55,0x7FF0,0x64BC,0x634D,0x65F1,0x61BE,0x608D,/* 0xB0-0xB7 */
+	0x710A,0x6C57,0x6C49,0x592F,0x676D,0x822A,0x58D5,0x568E,/* 0xB8-0xBF */
+	0x8C6A,0x6BEB,0x90DD,0x597D,0x8017,0x53F7,0x6D69,0x5475,/* 0xC0-0xC7 */
+	0x559D,0x8377,0x83CF,0x6838,0x79BE,0x548C,0x4F55,0x5408,/* 0xC8-0xCF */
+	0x76D2,0x8C89,0x9602,0x6CB3,0x6DB8,0x8D6B,0x8910,0x9E64,/* 0xD0-0xD7 */
+	0x8D3A,0x563F,0x9ED1,0x75D5,0x5F88,0x72E0,0x6068,0x54FC,/* 0xD8-0xDF */
+	0x4EA8,0x6A2A,0x8861,0x6052,0x8F70,0x54C4,0x70D8,0x8679,/* 0xE0-0xE7 */
+	0x9E3F,0x6D2A,0x5B8F,0x5F18,0x7EA2,0x5589,0x4FAF,0x7334,/* 0xE8-0xEF */
+	0x543C,0x539A,0x5019,0x540E,0x547C,0x4E4E,0x5FFD,0x745A,/* 0xF0-0xF7 */
+	0x58F6,0x846B,0x80E1,0x8774,0x72D0,0x7CCA,0x6E56,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_BB[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7C43,0x7C44,0x7C45,0x7C46,0x7C47,0x7C48,0x7C49,0x7C4A,/* 0x40-0x47 */
+	0x7C4B,0x7C4C,0x7C4E,0x7C4F,0x7C50,0x7C51,0x7C52,0x7C53,/* 0x48-0x4F */
+	0x7C54,0x7C55,0x7C56,0x7C57,0x7C58,0x7C59,0x7C5A,0x7C5B,/* 0x50-0x57 */
+	0x7C5C,0x7C5D,0x7C5E,0x7C5F,0xF944,0x7C61,0x7C62,0x7C63,/* 0x58-0x5F */
+	0x7C64,0x7C65,0x7C66,0x7C67,0x7C68,0x7C69,0x7C6A,0x7C6B,/* 0x60-0x67 */
+	0x7C6C,0x7C6D,0x7C6E,0x7C6F,0x7C70,0x7C71,0x7C72,0x7C75,/* 0x68-0x6F */
+	0x7C76,0x7C77,0x7C78,0x7C79,0x7C7A,0x7C7E,0x7C7F,0x7C80,/* 0x70-0x77 */
+	0x7C81,0x7C82,0x7C83,0x7C84,0x7C85,0x7C86,0x7C87,0x0000,/* 0x78-0x7F */
+	
+	0x7C88,0x7C8A,0x7C8B,0x7C8C,0x7C8D,0x7C8E,0x7C8F,0x7C90,/* 0x80-0x87 */
+	0x7C93,0x7C94,0x7C96,0x7C99,0x7C9A,0x7C9B,0x7CA0,0x7CA1,/* 0x88-0x8F */
+	0x7CA3,0x7CA6,0x7CA7,0x7CA8,0x7CA9,0x7CAB,0x7CAC,0x7CAD,/* 0x90-0x97 */
+	0x7CAF,0x7CB0,0x7CB4,0x7CB5,0x7CB6,0x7CB7,0x7CB8,0x7CBA,/* 0x98-0x9F */
+	0x7CBB,0x5F27,0x864E,0x552C,0x62A4,0x4E92,0x6CAA,0x6237,/* 0xA0-0xA7 */
+	0x82B1,0x54D7,0x534E,0x733E,0xF904,0x753B,0x5212,0x5316,/* 0xA8-0xAF */
+	0x8BDD,0x69D0,0x5F8A,0x6000,0x6DEE,0x574F,0x6B22,0x73AF,/* 0xB0-0xB7 */
+	0x6853,0x8FD8,0x7F13,0x6362,0x60A3,0x5524,0x75EA,0x8C62,/* 0xB8-0xBF */
+	0x7115,0x6DA3,0x5BA6,0x5E7B,0x8352,0x614C,0x9EC4,0x78FA,/* 0xC0-0xC7 */
+	0x8757,0x7C27,0x7687,0x51F0,0x60F6,0x714C,0x6643,0x5E4C,/* 0xC8-0xCF */
+	0x604D,0x8C0E,0x7070,0x6325,0x8F89,0x5FBD,0x6062,0x86D4,/* 0xD0-0xD7 */
+	0x56DE,0x6BC1,0x6094,0x6167,0x5349,0x60E0,0x6666,0x8D3F,/* 0xD8-0xDF */
+	0x79FD,0x4F1A,0x70E9,0x6C47,0x8BB3,0x8BF2,0x7ED8,0x8364,/* 0xE0-0xE7 */
+	0x660F,0x5A5A,0x9B42,0x6D51,0x6DF7,0x8C41,0x6D3B,0x4F19,/* 0xE8-0xEF */
+	0x706B,0x83B7,0x6216,0x60D1,0x970D,0x8D27,0x7978,0x51FB,/* 0xF0-0xF7 */
+	0x573E,0x57FA,0x673A,0x7578,0x7A3D,0x79EF,0x7B95,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_BC[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7CBF,0x7CC0,0x7CC2,0x7CC3,0x7CC4,0x7CC6,0x7CC9,0x7CCB,/* 0x40-0x47 */
+	0x7CCE,0x7CCF,0x7CD0,0x7CD1,0x7CD2,0x7CD3,0x7CD4,0x7CD8,/* 0x48-0x4F */
+	0x7CDA,0x7CDB,0x7CDD,0x7CDE,0x7CE1,0x7CE2,0x7CE3,0x7CE4,/* 0x50-0x57 */
+	0x7CE5,0x7CE6,0xF97B,0x7CE9,0x7CEA,0x7CEB,0x7CEC,0x7CED,/* 0x58-0x5F */
+	0x7CEE,0x7CF0,0x7CF1,0x7CF2,0x7CF3,0x7CF4,0x7CF5,0x7CF6,/* 0x60-0x67 */
+	0x7CF7,0x7CF9,0x7CFA,0x7CFC,0x7CFD,0x7CFE,0x7CFF,0x7D00,/* 0x68-0x6F */
+	0x7D01,0x7D02,0x7D03,0x7D04,0x7D05,0x7D06,0x7D07,0x7D08,/* 0x70-0x77 */
+	0x7D09,0x7D0B,0x7D0C,0x7D0D,0x7D0E,0x7D0F,0xF9CF,0x0000,/* 0x78-0x7F */
+	
+	0x7D11,0x7D12,0x7D13,0x7D14,0x7D15,0x7D16,0x7D17,0x7D18,/* 0x80-0x87 */
+	0x7D19,0x7D1A,0x7D1B,0x7D1C,0x7D1D,0x7D1E,0x7D1F,0x7D21,/* 0x88-0x8F */
+	0x7D23,0x7D24,0x7D25,0x7D26,0x7D28,0x7D29,0x7D2A,0x7D2C,/* 0x90-0x97 */
+	0x7D2D,0x7D2E,0x7D30,0x7D31,0x7D32,0x7D33,0x7D34,0x7D35,/* 0x98-0x9F */
+	0x7D36,0x808C,0x9965,0x8FF9,0x6FC0,0x8BA5,0x9E21,0x59EC,/* 0xA0-0xA7 */
+	0x7EE9,0x7F09,0x5409,0x6781,0x68D8,0x8F91,0x7C4D,0x96C6,/* 0xA8-0xAF */
+	0x53CA,0x6025,0x75BE,0x6C72,0x5373,0x5AC9,0x7EA7,0x6324,/* 0xB0-0xB7 */
+	0x51E0,0x810A,0x5DF1,0x84DF,0x6280,0x5180,0x5B63,0x4F0E,/* 0xB8-0xBF */
+	0x796D,0x5242,0x60B8,0x6D4E,0x5BC4,0x5BC2,0x8BA1,0x8BB0,/* 0xC0-0xC7 */
+	0x65E2,0x5FCC,0x9645,0x5993,0x7EE7,0x7EAA,0x5609,0x67B7,/* 0xC8-0xCF */
+	0x5939,0x4F73,0x5BB6,0x52A0,0x835A,0x988A,0x8D3E,0x7532,/* 0xD0-0xD7 */
+	0x94BE,0x5047,0x7A3C,0x4EF7,0x67B6,0x9A7E,0x5AC1,0x6B7C,/* 0xD8-0xDF */
+	0x76D1,0x575A,0x5C16,0x7B3A,0x95F4,0x714E,0x517C,0x80A9,/* 0xE0-0xE7 */
+	0x8270,0x5978,0x7F04,0x8327,0x68C0,0x67EC,0x78B1,0x7877,/* 0xE8-0xEF */
+	0x62E3,0x6361,0x7B80,0x4FED,0x526A,0x51CF,0x8350,0x69DB,/* 0xF0-0xF7 */
+	0x9274,0x8DF5,0x8D31,0x89C1,0x952E,0x7BAD,0x4EF6,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_BD[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7D37,0x7D38,0x7D39,0x7D3A,0x7D3B,0x7D3C,0x7D3D,0x7D3E,/* 0x40-0x47 */
+	0x7D3F,0x7D40,0x7D41,0x7D42,0x7D43,0x7D44,0x7D45,0x7D46,/* 0x48-0x4F */
+	0x7D47,0x7D48,0x7D49,0x7D4A,0x7D4B,0x7D4C,0x7D4D,0x7D4E,/* 0x50-0x57 */
+	0x7D4F,0x7D50,0x7D51,0x7D52,0x7D53,0x7D54,0x7D55,0x7D56,/* 0x58-0x5F */
+	0x7D57,0x7D58,0x7D59,0x7D5A,0x7D5B,0x7D5C,0x7D5D,0x7D5E,/* 0x60-0x67 */
+	0x7D5F,0x7D60,0x7D61,0x7D62,0x7D63,0x7D64,0x7D65,0x7D66,/* 0x68-0x6F */
+	0x7D67,0x7D68,0x7D69,0x7D6A,0x7D6B,0x7D6C,0x7D6D,0x7D6F,/* 0x70-0x77 */
+	0x7D70,0x7D71,0x7D72,0x7D73,0x7D74,0x7D75,0x7D76,0x0000,/* 0x78-0x7F */
+	
+	0x7D78,0x7D79,0x7D7A,0x7D7B,0x7D7C,0x7D7D,0x7D7E,0x7D7F,/* 0x80-0x87 */
+	0x7D80,0x7D81,0x7D82,0x7D83,0x7D84,0x7D85,0x7D86,0x7D87,/* 0x88-0x8F */
+	0x7D88,0x7D89,0x7D8A,0x7D8B,0x7D8C,0x7D8D,0x7D8E,0x7D8F,/* 0x90-0x97 */
+	0x7D90,0x7D91,0x7D92,0x7D93,0x7D94,0x7D95,0x7D96,0x7D97,/* 0x98-0x9F */
+	0x7D98,0x5065,0x8230,0x5251,0x996F,0x6E10,0x6E85,0x6DA7,/* 0xA0-0xA7 */
+	0x5EFA,0x50F5,0x59DC,0x5C06,0x6D46,0x6C5F,0x7586,0x848B,/* 0xA8-0xAF */
+	0x6868,0x5956,0x8BB2,0x5320,0x9171,0xFA09,0x8549,0x6912,/* 0xB0-0xB7 */
+	0x7901,0x7126,0x80F6,0x4EA4,0x90CA,0x6D47,0x9A84,0x5A07,/* 0xB8-0xBF */
+	0x56BC,0x6405,0x94F0,0x77EB,0x4FA5,0x811A,0x72E1,0x89D2,/* 0xC0-0xC7 */
+	0x997A,0x7F34,0x7EDE,0x527F,0x6559,0x9175,0x8F7F,0x8F83,/* 0xC8-0xCF */
+	0x53EB,0x7A96,0x63ED,0x63A5,0x7686,0x79F8,0x8857,0x9636,/* 0xD0-0xD7 */
+	0x622A,0x52AB,0x8282,0x6854,0x6770,0x6377,0x776B,0x7AED,/* 0xD8-0xDF */
+	0x6D01,0x7ED3,0x89E3,0x59D0,0x6212,0x85C9,0x82A5,0x754C,/* 0xE0-0xE7 */
+	0x501F,0x4ECB,0x75A5,0x8BEB,0x5C4A,0x5DFE,0x7B4B,0x65A4,/* 0xE8-0xEF */
+	0xF90A,0x4ECA,0x6D25,0x895F,0x7D27,0x9526,0x4EC5,0x8C28,/* 0xF0-0xF7 */
+	0x8FDB,0x9773,0x664B,0x7981,0x8FD1,0x70EC,0x6D78,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_BE[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7D99,0x7D9A,0x7D9B,0x7D9C,0x7D9D,0x7D9E,0x7D9F,0xF93D,/* 0x40-0x47 */
+	0x7DA1,0x7DA2,0x7DA3,0x7DA4,0x7DA5,0x7DA7,0x7DA8,0x7DA9,/* 0x48-0x4F */
+	0x7DAA,0x7DAB,0x7DAC,0x7DAD,0x7DAF,0x7DB0,0x7DB1,0x7DB2,/* 0x50-0x57 */
+	0x7DB3,0x7DB4,0x7DB5,0x7DB6,0x7DB7,0x7DB8,0x7DB9,0x7DBA,/* 0x58-0x5F */
+	0x7DBB,0x7DBC,0x7DBD,0xF957,0x7DBF,0x7DC0,0x7DC1,0x7DC2,/* 0x60-0x67 */
+	0x7DC3,0x7DC4,0x7DC5,0x7DC6,0x7DC7,0x7DC8,0x7DC9,0x7DCA,/* 0x68-0x6F */
+	0x7DCB,0x7DCC,0x7DCD,0x7DCE,0x7DCF,0x7DD0,0x7DD1,0x7DD2,/* 0x70-0x77 */
+	0x7DD3,0x7DD4,0x7DD5,0x7DD6,0x7DD7,0x7DD8,0x7DD9,0x0000,/* 0x78-0x7F */
+	
+	0x7DDA,0x7DDB,0x7DDC,0x7DDD,0x7DDE,0x7DDF,0x7DE0,0x7DE1,/* 0x80-0x87 */
+	0x7DE2,0x7DE3,0x7DE4,0x7DE5,0x7DE6,0x7DE7,0x7DE8,0x7DE9,/* 0x88-0x8F */
+	0x7DEA,0x7DEB,0x7DEC,0x7DED,0x7DEE,0x7DEF,0x7DF0,0x7DF1,/* 0x90-0x97 */
+	0x7DF2,0x7DF3,0xF996,0x7DF5,0x7DF6,0x7DF7,0x7DF8,0x7DF9,/* 0x98-0x9F */
+	0x7DFA,0x5C3D,0x52B2,0x8346,0x5162,0x830E,0x775B,0x6676,/* 0xA0-0xA7 */
+	0x9CB8,0x4EAC,0x60CA,0xFA1D,0x7CB3,0x7ECF,0x4E95,0x8B66,/* 0xA8-0xAF */
+	0x666F,0x9888,0x9759,0x5883,0x656C,0x955C,0x5F84,0x75C9,/* 0xB0-0xB7 */
+	0xFA1C,0x7ADF,0x7ADE,0x51C0,0x70AF,0x7A98,0x63EA,0x7A76,/* 0xB8-0xBF */
+	0x7EA0,0x7396,0x97ED,0x4E45,0x7078,0x4E5D,0x9152,0x53A9,/* 0xC0-0xC7 */
+	0x6551,0x65E7,0x81FC,0x8205,0x548E,0x5C31,0x759A,0x97A0,/* 0xC8-0xCF */
+	0x62D8,0x72D9,0x75BD,0x5C45,0x9A79,0x83CA,0x5C40,0x5480,/* 0xD0-0xD7 */
+	0x77E9,0x4E3E,0x6CAE,0x805A,0x62D2,0x636E,0x5DE8,0x5177,/* 0xD8-0xDF */
+	0x8DDD,0x8E1E,0x952F,0x4FF1,0xF906,0x60E7,0x70AC,0x5267,/* 0xE0-0xE7 */
+	0x6350,0x9E43,0x5A1F,0x5026,0x7737,0x5377,0x7EE2,0x6485,/* 0xE8-0xEF */
+	0x652B,0x6289,0x6398,0x5014,0x7235,0x89C9,0x51B3,0x8BC0,/* 0xF0-0xF7 */
+	0x7EDD,0x5747,0x83CC,0x94A7,0x519B,0x541B,0x5CFB,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_BF[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7DFB,0x7DFC,0x7DFD,0x7DFE,0x7DFF,0x7E00,0x7E01,0x7E02,/* 0x40-0x47 */
+	0x7E03,0x7E04,0x7E05,0x7E06,0x7E07,0x7E08,0x7E09,0x7E0A,/* 0x48-0x4F */
+	0x7E0B,0x7E0C,0x7E0D,0x7E0E,0x7E0F,0x7E10,0x7E11,0x7E12,/* 0x50-0x57 */
+	0x7E13,0x7E14,0x7E15,0x7E16,0x7E17,0x7E18,0x7E19,0x7E1A,/* 0x58-0x5F */
+	0x7E1B,0x7E1C,0x7E1D,0x7E1E,0x7E1F,0x7E20,0x7E21,0x7E22,/* 0x60-0x67 */
+	0x7E23,0x7E24,0x7E25,0x7E26,0x7E27,0x7E28,0x7E29,0x7E2A,/* 0x68-0x6F */
+	0x7E2B,0x7E2C,0x7E2D,0x7E2E,0x7E2F,0x7E30,0x7E31,0x7E32,/* 0x70-0x77 */
+	0x7E33,0x7E34,0x7E35,0x7E36,0xF950,0x7E38,0x7E39,0x0000,/* 0x78-0x7F */
+	
+	0x7E3A,0x7E3C,0x7E3D,0x7E3E,0x7E3F,0x7E40,0x7E42,0x7E43,/* 0x80-0x87 */
+	0x7E44,0x7E45,0x7E46,0x7E48,0x7E49,0x7E4A,0x7E4B,0x7E4C,/* 0x88-0x8F */
+	0x7E4D,0x7E4E,0x7E4F,0x7E50,0x7E51,0x7E52,0x7E53,0x7E54,/* 0x90-0x97 */
+	0x7E55,0x7E56,0x7E57,0x7E58,0x7E59,0x7E5A,0x7E5B,0x7E5C,/* 0x98-0x9F */
+	0x7E5D,0x4FCA,0x7AE3,0x6D5A,0x90E1,0x9A8F,0x5580,0x5496,/* 0xA0-0xA7 */
+	0x5361,0x54AF,0x5F00,0x63E9,0x6977,0x51EF,0x6168,0x520A,/* 0xA8-0xAF */
+	0x582A,0x52D8,0x574E,0x780D,0x770B,0x5EB7,0x6177,0x7CE0,/* 0xB0-0xB7 */
+	0x625B,0x6297,0x4EA2,0x7095,0x8003,0x62F7,0x70E4,0x9760,/* 0xB8-0xBF */
+	0x5777,0x82DB,0x67EF,0x68F5,0x78D5,0x9897,0x79D1,0x58F3,/* 0xC0-0xC7 */
+	0x54B3,0x53EF,0x6E34,0x514B,0x523B,0x5BA2,0x8BFE,0x80AF,/* 0xC8-0xCF */
+	0x5543,0x57A6,0x6073,0x5751,0x542D,0x7A7A,0x6050,0x5B54,/* 0xD0-0xD7 */
+	0x63A7,0x62A0,0x53E3,0x6263,0x5BC7,0x67AF,0x54ED,0x7A9F,/* 0xD8-0xDF */
+	0x82E6,0x9177,0x5E93,0x88E4,0x5938,0x57AE,0x630E,0x8DE8,/* 0xE0-0xE7 */
+	0x80EF,0x5757,0x7B77,0x4FA9,0x5FEB,0x5BBD,0x6B3E,0x5321,/* 0xE8-0xEF */
+	0x7B50,0x72C2,0x6846,0x77FF,0x7736,0x65F7,0x51B5,0x4E8F,/* 0xF0-0xF7 */
+	0x76D4,0x5CBF,0x7AA5,0x8475,0x594E,0x9B41,0x5080,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_C0[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7E5E,0x7E5F,0x7E60,0x7E61,0x7E62,0x7E63,0x7E64,0x7E65,/* 0x40-0x47 */
+	0x7E66,0x7E67,0x7E68,0x7E69,0x7E6A,0x7E6B,0x7E6C,0x7E6D,/* 0x48-0x4F */
+	0x7E6E,0x7E6F,0x7E70,0x7E71,0x7E72,0x7E73,0x7E74,0x7E75,/* 0x50-0x57 */
+	0x7E76,0x7E77,0x7E78,0x7E79,0x7E7A,0x7E7B,0x7E7C,0x7E7D,/* 0x58-0x5F */
+	0x7E7E,0x7E7F,0x7E80,0x7E81,0x7E83,0x7E84,0x7E85,0x7E86,/* 0x60-0x67 */
+	0x7E87,0x7E88,0x7E89,0x7E8A,0x7E8B,0x7E8C,0x7E8D,0x7E8E,/* 0x68-0x6F */
+	0x7E8F,0x7E90,0x7E91,0x7E92,0x7E93,0x7E94,0x7E95,0x7E96,/* 0x70-0x77 */
+	0x7E97,0x7E98,0x7E99,0x7E9A,0x7E9C,0x7E9D,0x7E9E,0x0000,/* 0x78-0x7F */
+	
+	0x7EAE,0x7EB4,0x7EBB,0x7EBC,0x7ED6,0x7EE4,0x7EEC,0x7EF9,/* 0x80-0x87 */
+	0x7F0A,0x7F10,0x7F1E,0x7F37,0x7F39,0x7F3B,0x7F3C,0x7F3D,/* 0x88-0x8F */
+	0x7F3E,0x7F3F,0x7F40,0x7F41,0x7F43,0x7F46,0x7F47,0x7F48,/* 0x90-0x97 */
+	0x7F49,0x7F4A,0x7F4B,0x7F4C,0x7F4D,0x7F4E,0x7F4F,0x7F52,/* 0x98-0x9F */
+	0x7F53,0x9988,0x6127,0x6E83,0x5764,0x6606,0x6346,0x56F0,/* 0xA0-0xA7 */
+	0x62EC,0x6269,0xFA0B,0x9614,0x5783,0xF925,0xF90B,0x8721,/* 0xA8-0xAF */
+	0x814A,0x8FA3,0x5566,0x83B1,0x6765,0x8D56,0x84DD,0x5A6A,/* 0xB0-0xB7 */
+	0x680F,0x62E6,0x7BEE,0x9611,0x5170,0x6F9C,0x8C30,0x63FD,/* 0xB8-0xBF */
+	0x89C8,0x61D2,0x7F06,0x70C2,0x6EE5,0x7405,0x6994,0xF92B,/* 0xC0-0xC7 */
+	0xF928,0x90CE,0xF929,0xF92A,0x635E,0x52B3,0xF946,0xF934,/* 0xC8-0xCF */
+	0x4F6C,0x59E5,0xF919,0xF916,0x6D9D,0xF952,0x4E50,0xF949,/* 0xD0-0xD7 */
+	0x956D,0x857E,0xF947,0xF94F,0x5121,0x5792,0x64C2,0xF953,/* 0xD8-0xDF */
+	0x7C7B,0x6CEA,0x68F1,0x695E,0xF92E,0x5398,0xF9E2,0x7281,/* 0xE0-0xE7 */
+	0xF989,0x7BF1,0x72F8,0x79BB,0x6F13,0xF9E4,0xF9E1,0xF9E9,/* 0xE8-0xEF */
+	0x9CA4,0x793C,0x8389,0x8354,0xF9DE,0xF9DA,0x4E3D,0x5389,/* 0xF0-0xF7 */
+	0x52B1,0x783E,0x5386,0xF9DD,0x5088,0xF9B5,0x4FD0,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_C1[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7F56,0x7F59,0x7F5B,0x7F5C,0x7F5D,0x7F5E,0x7F60,0x7F63,/* 0x40-0x47 */
+	0x7F64,0x7F65,0x7F66,0x7F67,0x7F6B,0x7F6C,0x7F6D,0x7F6F,/* 0x48-0x4F */
+	0x7F70,0x7F73,0x7F75,0x7F76,0x7F77,0x7F78,0x7F7A,0x7F7B,/* 0x50-0x57 */
+	0x7F7C,0x7F7D,0x7F7F,0x7F80,0x7F82,0x7F83,0x7F84,0xF90F,/* 0x58-0x5F */
+	0x7F86,0x7F87,0x7F88,0x7F89,0x7F8B,0x7F8D,0x7F8F,0x7F90,/* 0x60-0x67 */
+	0x7F91,0x7F92,0x7F93,0x7F95,0x7F96,0x7F97,0x7F98,0x7F99,/* 0x68-0x6F */
+	0x7F9B,0x7F9C,0x7FA0,0x7FA2,0x7FA3,0x7FA5,0x7FA6,0x7FA8,/* 0x70-0x77 */
+	0x7FA9,0x7FAA,0x7FAB,0x7FAC,0x7FAD,0x7FAE,0x7FB1,0x0000,/* 0x78-0x7F */
+	
+	0x7FB3,0x7FB4,0x7FB5,0x7FB6,0x7FB7,0x7FBA,0x7FBB,0x7FBE,/* 0x80-0x87 */
+	0x7FC0,0x7FC2,0x7FC3,0x7FC4,0x7FC6,0x7FC7,0x7FC8,0x7FC9,/* 0x88-0x8F */
+	0x7FCB,0x7FCD,0x7FCF,0x7FD0,0x7FD1,0x7FD2,0x7FD3,0x7FD6,/* 0x90-0x97 */
+	0x7FD7,0x7FD9,0x7FDA,0x7FDB,0x7FDC,0x7FDD,0x7FDE,0x7FE2,/* 0x98-0x9F */
+	0x7FE3,0xF9E5,0xF9F7,0xF9F9,0x6CA5,0x96B6,0xF98A,0x7483,/* 0xA0-0xA7 */
+	0x54E9,0x4FE9,0x8054,0x83B2,0x8FDE,0x9570,0xF9A2,0xF9AC,/* 0xA8-0xAF */
+	0x6D9F,0x5E18,0x655B,0x8138,0x94FE,0x604B,0x70BC,0x7EC3,/* 0xB0-0xB7 */
+	0x7CAE,0x51C9,0xF97A,0x7CB1,0xF97C,0x4E24,0x8F86,0xF97E,/* 0xB8-0xBF */
+	0x667E,0xF977,0x8C05,0x64A9,0x804A,0xF9BB,0x7597,0xF9C0,/* 0xC0-0xC7 */
+	0x5BE5,0x8FBD,0x6F66,0xF9BA,0x6482,0x9563,0x5ED6,0xF9BE,/* 0xC8-0xCF */
+	0xF99C,0xF9A0,0xF99F,0xF99D,0x730E,0x7433,0xF9F4,0x78F7,/* 0xD0-0xD7 */
+	0x9716,0x4E34,0x90BB,0x9CDE,0xF9F5,0x51DB,0x8D41,0xF9ED,/* 0xD8-0xDF */
+	0x62CE,0xF9AD,0xF958,0xF9B2,0x9F84,0x94C3,0x4F36,0xF9AF,/* 0xE0-0xE7 */
+	0xF955,0x7075,0xF959,0x5CAD,0x9886,0x53E6,0xF9A8,0xF9CB,/* 0xE8-0xEF */
+	0xF9CC,0x69B4,0xF9CE,0x998F,0xF9CD,0x5218,0x7624,0xF9CA,/* 0xF0-0xF7 */
+	0xF9C9,0xF9D1,0x9F99,0x804B,0x5499,0x7B3C,0x7ABF,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_C2[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7FE4,0x7FE7,0x7FE8,0x7FEA,0x7FEB,0x7FEC,0x7FED,0x7FEF,/* 0x40-0x47 */
+	0x7FF2,0x7FF4,0x7FF5,0x7FF6,0x7FF7,0x7FF8,0x7FF9,0x7FFA,/* 0x48-0x4F */
+	0x7FFD,0x7FFE,0x7FFF,0x8002,0x8007,0x8008,0x8009,0x800A,/* 0x50-0x57 */
+	0x800E,0x800F,0x8011,0x8013,0x801A,0x801B,0x801D,0x801E,/* 0x58-0x5F */
+	0x801F,0x8021,0x8023,0x8024,0x802B,0x802C,0x802D,0x802E,/* 0x60-0x67 */
+	0x802F,0x8030,0x8032,0x8034,0x8039,0x803A,0x803C,0x803E,/* 0x68-0x6F */
+	0x8040,0x8041,0x8044,0x8045,0x8047,0x8048,0x8049,0x804E,/* 0x70-0x77 */
+	0x804F,0x8050,0x8051,0x8053,0x8055,0x8056,0x8057,0x0000,/* 0x78-0x7F */
+	
+	0x8059,0x805B,0x805C,0x805D,0x805E,0x805F,0x8060,0x8061,/* 0x80-0x87 */
+	0x8062,0x8063,0x8064,0x8065,0x8066,0x8067,0x8068,0x806B,/* 0x88-0x8F */
+	0x806C,0x806D,0x806E,0xF997,0x8070,0x8072,0x8073,0x8074,/* 0x90-0x97 */
+	0x8075,0x8076,0x8077,0x8078,0x8079,0x807A,0x807B,0x807C,/* 0x98-0x9F */
+	0x807D,0xF9DC,0x5784,0x62E2,0x9647,0x697C,0x5A04,0x6402,/* 0xA0-0xA7 */
+	0x7BD3,0xF94E,0xF951,0x82A6,0x5362,0x9885,0x5E90,0x7089,/* 0xA8-0xAF */
+	0x63B3,0x5364,0x864F,0x9C81,0x9E93,0xF93B,0xF938,0xF937,/* 0xB0-0xB7 */
+	0x8D42,0xF940,0x6F5E,0x7984,0x5F55,0x9646,0xF9D2,0x9A74,/* 0xB8-0xBF */
+	0x5415,0x94DD,0x4FA3,0xF983,0xF9DF,0x5C61,0x7F15,0x8651,/* 0xC0-0xC7 */
+	0x6C2F,0xF9D8,0xF9DB,0x6EE4,0x7EFF,0x5CE6,0x631B,0x5B6A,/* 0xC8-0xCF */
+	0x6EE6,0xF91C,0x4E71,0xF975,0xF976,0x62A1,0x8F6E,0x4F26,/* 0xD0-0xD7 */
+	0x4ED1,0x6CA6,0x7EB6,0x8BBA,0x841D,0xF911,0x7F57,0x903B,/* 0xD8-0xDF */
+	0x9523,0x7BA9,0x9AA1,0xF912,0xF918,0xF915,0x9A86,0x7EDC,/* 0xE0-0xE7 */
+	0x5988,0x9EBB,0x739B,0x7801,0x8682,0x9A6C,0x9A82,0x561B,/* 0xE8-0xEF */
+	0x5417,0x57CB,0x4E70,0x9EA6,0x5356,0x8FC8,0x8109,0x7792,/* 0xF0-0xF7 */
+	0x9992,0x86EE,0x6EE1,0x8513,0x66FC,0x6162,0x6F2B,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_C3[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0xF945,0x8081,0x8082,0x8085,0x8088,0x808A,0x808D,0x808E,/* 0x40-0x47 */
+	0x808F,0x8090,0x8091,0x8092,0x8094,0x8095,0x8097,0x8099,/* 0x48-0x4F */
+	0x809E,0x80A3,0x80A6,0x80A7,0x80A8,0x80AC,0x80B0,0x80B3,/* 0x50-0x57 */
+	0x80B5,0x80B6,0x80B8,0x80B9,0x80BB,0x80C5,0x80C7,0x80C8,/* 0x58-0x5F */
+	0x80C9,0x80CA,0x80CB,0x80CF,0x80D0,0x80D1,0x80D2,0x80D3,/* 0x60-0x67 */
+	0x80D4,0x80D5,0x80D8,0x80DF,0x80E0,0x80E2,0x80E3,0x80E6,/* 0x68-0x6F */
+	0x80EE,0x80F5,0x80F7,0x80F9,0x80FB,0x80FE,0x80FF,0x8100,/* 0x70-0x77 */
+	0x8101,0x8103,0x8104,0x8105,0x8107,0x8108,0x810B,0x0000,/* 0x78-0x7F */
+	
+	0x810C,0x8115,0x8117,0x8119,0x811B,0x811C,0x811D,0x811F,/* 0x80-0x87 */
+	0x8120,0x8121,0x8122,0x8123,0x8124,0x8125,0x8126,0x8127,/* 0x88-0x8F */
+	0x8128,0x8129,0x812A,0x812B,0x812D,0x812E,0x8130,0x8133,/* 0x90-0x97 */
+	0x8134,0x8135,0x8137,0x8139,0x813A,0x813B,0x813C,0x813D,/* 0x98-0x9F */
+	0x813F,0x8C29,0x8292,0x832B,0x76F2,0x6C13,0x5FD9,0x83BD,/* 0xA0-0xA7 */
+	0x732B,0x8305,0x951A,0x6BDB,0x77DB,0x94C6,0x536F,0x8302,/* 0xA8-0xAF */
+	0x5192,0x5E3D,0x8C8C,0x8D38,0x4E48,0x73AB,0x679A,0x6885,/* 0xB0-0xB7 */
+	0x9176,0x9709,0x7164,0x6CA1,0x7709,0x5A92,0x9541,0x6BCF,/* 0xB8-0xBF */
+	0x7F8E,0x6627,0x5BD0,0x59B9,0x5A9A,0x95E8,0x95F7,0x4EEC,/* 0xC0-0xC7 */
+	0x840C,0x8499,0x6AAC,0x76DF,0x9530,0x731B,0x68A6,0x5B5F,/* 0xC8-0xCF */
+	0x772F,0x919A,0x9761,0x7CDC,0x8FF7,0x8C1C,0x5F25,0x7C73,/* 0xD0-0xD7 */
+	0x79D8,0x89C5,0xF968,0x871C,0x5BC6,0x5E42,0x68C9,0x7720,/* 0xD8-0xDF */
+	0x7EF5,0x5195,0x514D,0x52C9,0x5A29,0x7F05,0x9762,0x82D7,/* 0xE0-0xE7 */
+	0x63CF,0x7784,0x85D0,0x79D2,0x6E3A,0x5E99,0x5999,0x8511,/* 0xE8-0xEF */
+	0x706D,0x6C11,0x62BF,0x76BF,0x654F,0x60AF,0x95FD,0x660E,/* 0xF0-0xF7 */
+	0x879F,0x9E23,0x94ED,0x540D,0x547D,0x8C2C,0x6478,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_C4[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8140,0x8141,0x8142,0x8143,0x8144,0x8145,0x8147,0x8149,/* 0x40-0x47 */
+	0x814D,0x814E,0x814F,0x8152,0x8156,0x8157,0x8158,0x815B,/* 0x48-0x4F */
+	0x815C,0x815D,0x815E,0x815F,0x8161,0x8162,0x8163,0x8164,/* 0x50-0x57 */
+	0x8166,0x8168,0x816A,0x816B,0x816C,0x816F,0x8172,0x8173,/* 0x58-0x5F */
+	0x8175,0x8176,0x8177,0x8178,0x8181,0x8183,0x8184,0x8185,/* 0x60-0x67 */
+	0x8186,0x8187,0x8189,0x818B,0x818C,0x818D,0x818E,0x8190,/* 0x68-0x6F */
+	0x8192,0x8193,0x8194,0x8195,0x8196,0x8197,0x8199,0x819A,/* 0x70-0x77 */
+	0x819E,0x819F,0x81A0,0x81A1,0x81A2,0x81A4,0x81A5,0x0000,/* 0x78-0x7F */
+	
+	0x81A7,0x81A9,0x81AB,0x81AC,0x81AD,0x81AE,0x81AF,0x81B0,/* 0x80-0x87 */
+	0x81B1,0x81B2,0x81B4,0x81B5,0x81B6,0x81B7,0x81B8,0x81B9,/* 0x88-0x8F */
+	0x81BC,0x81BD,0x81BE,0x81BF,0x81C4,0x81C5,0x81C7,0x81C8,/* 0x90-0x97 */
+	0x81C9,0x81CB,0x81CD,0x81CE,0x81CF,0x81D0,0x81D1,0x81D2,/* 0x98-0x9F */
+	0x81D3,0x6479,0x8611,0x6A21,0x819C,0x78E8,0x6469,0x9B54,/* 0xA0-0xA7 */
+	0x62B9,0x672B,0x83AB,0x58A8,0x9ED8,0x6CAB,0x6F20,0x5BDE,/* 0xA8-0xAF */
+	0x964C,0x8C0B,0x725F,0x67D0,0x62C7,0x7261,0x4EA9,0x59C6,/* 0xB0-0xB7 */
+	0x6BCD,0x5893,0x66AE,0x5E55,0x52DF,0x6155,0x6728,0x76EE,/* 0xB8-0xBF */
+	0x7766,0x7267,0x7A46,0x62FF,0x54EA,0x5450,0x94A0,0x90A3,/* 0xC0-0xC7 */
+	0x5A1C,0x7EB3,0x6C16,0x4E43,0x5976,0x8010,0xF90C,0x5357,/* 0xC8-0xCF */
+	0x7537,0x96BE,0x56CA,0x6320,0x8111,0x607C,0x95F9,0x6DD6,/* 0xD0-0xD7 */
+	0x5462,0x9981,0x5185,0x5AE9,0x80FD,0x59AE,0x9713,0x502A,/* 0xD8-0xDF */
+	0xF9E3,0x5C3C,0x62DF,0x4F60,0xF9EB,0x817B,0x9006,0xF9EC,/* 0xE0-0xE7 */
+	0x852B,0x62C8,0xF98E,0x78BE,0x64B5,0xF9A4,0xF9A3,0x5A18,/* 0xE8-0xEF */
+	0x917F,0x9E1F,0xF9BD,0x634F,0x8042,0x5B7D,0x556E,0x954A,/* 0xF0-0xF7 */
+	0x954D,0x6D85,0x60A8,0x67E0,0x72DE,0x51DD,0x5B81,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_C5[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x81D4,0x81D5,0x81D6,0x81D7,0xF926,0x81D9,0x81DA,0x81DB,/* 0x40-0x47 */
+	0x81DC,0x81DD,0x81DE,0x81DF,0x81E0,0x81E1,0x81E2,0x81E4,/* 0x48-0x4F */
+	0x81E5,0x81E6,0xF9F6,0x81E9,0x81EB,0x81EE,0x81EF,0x81F0,/* 0x50-0x57 */
+	0x81F1,0x81F2,0x81F5,0x81F6,0x81F7,0x81F8,0x81F9,0x81FA,/* 0x58-0x5F */
+	0x81FD,0x81FF,0x8203,0x8207,0x8208,0x8209,0x820A,0x820B,/* 0x60-0x67 */
+	0x820E,0x820F,0x8211,0x8213,0x8215,0x8216,0x8217,0x8218,/* 0x68-0x6F */
+	0x8219,0x821A,0x821D,0x8220,0x8224,0x8225,0x8226,0x8227,/* 0x70-0x77 */
+	0x8229,0x822E,0x8232,0x823A,0x823C,0x823D,0x823F,0x0000,/* 0x78-0x7F */
+	
+	0x8240,0x8241,0x8242,0x8243,0x8245,0x8246,0x8248,0x824A,/* 0x80-0x87 */
+	0x824C,0x824D,0x824E,0x8250,0x8251,0x8252,0x8253,0x8254,/* 0x88-0x8F */
+	0x8255,0x8256,0x8257,0x8259,0x825B,0x825C,0x825D,0x825E,/* 0x90-0x97 */
+	0x8260,0x8261,0x8262,0x8263,0x8264,0x8265,0x8266,0x8267,/* 0x98-0x9F */
+	0x8269,0x62E7,0x6CDE,0x725B,0x626D,0x94AE,0x7EBD,0x8113,/* 0xA0-0xA7 */
+	0x6D53,0x519C,0xF943,0x5974,0x52AA,0xF960,0xF981,0x6696,/* 0xA8-0xAF */
+	0x8650,0x759F,0x632A,0x61E6,0x7CEF,0x8BFA,0x54E6,0x6B27,/* 0xB0-0xB7 */
+	0x9E25,0x6BB4,0x85D5,0x5455,0x5076,0x6CA4,0x556A,0x8DB4,/* 0xB8-0xBF */
+	0x722C,0x5E15,0x6015,0x7436,0x62CD,0x6392,0x724C,0x5F98,/* 0xC0-0xC7 */
+	0x6E43,0x6D3E,0x6500,0x6F58,0x76D8,0x78D0,0x76FC,0x7554,/* 0xC8-0xCF */
+	0x5224,0x53DB,0x4E53,0x5E9E,0x65C1,0x802A,0x80D6,0x629B,/* 0xD0-0xD7 */
+	0x5486,0x5228,0x70AE,0x888D,0x8DD1,0x6CE1,0x5478,0x80DA,/* 0xD8-0xDF */
+	0x57F9,0x88F4,0x8D54,0x966A,0x914D,0x4F69,0x6C9B,0x55B7,/* 0xE0-0xE7 */
+	0x76C6,0x7830,0x62A8,0x70F9,0x6F8E,0x5F6D,0x84EC,0x68DA,/* 0xE8-0xEF */
+	0x787C,0x7BF7,0x81A8,0x670B,0x9E4F,0x6367,0x78B0,0x576F,/* 0xF0-0xF7 */
+	0x7812,0x9739,0x6279,0x62AB,0x5288,0x7435,0x6BD7,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_C6[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x826A,0x826B,0x826C,0x826D,0x8271,0x8275,0x8276,0x8277,/* 0x40-0x47 */
+	0x8278,0x827B,0x827C,0x8280,0x8281,0x8283,0x8285,0x8286,/* 0x48-0x4F */
+	0x8287,0x8289,0x828C,0x8290,0x8293,0x8294,0x8295,0x8296,/* 0x50-0x57 */
+	0x829A,0x829B,0x829E,0x82A0,0x82A2,0x82A3,0x82A7,0x82B2,/* 0x58-0x5F */
+	0x82B5,0x82B6,0x82BA,0x82BB,0x82BC,0x82BF,0x82C0,0x82C2,/* 0x60-0x67 */
+	0x82C3,0x82C5,0x82C6,0x82C9,0x82D0,0x82D6,0x82D9,0x82DA,/* 0x68-0x6F */
+	0x82DD,0x82E2,0x82E7,0x82E8,0x82E9,0x82EA,0x82EC,0x82ED,/* 0x70-0x77 */
+	0x82EE,0x82F0,0x82F2,0x82F3,0x82F5,0x82F6,0x82F8,0x0000,/* 0x78-0x7F */
+	
+	0x82FA,0x82FC,0x82FD,0x82FE,0x82FF,0x8300,0x830A,0x830B,/* 0x80-0x87 */
+	0x830D,0x8310,0x8312,0x8313,0x8316,0x8318,0x8319,0x831D,/* 0x88-0x8F */
+	0x831E,0x831F,0x8320,0x8321,0x8322,0x8323,0x8324,0x8325,/* 0x90-0x97 */
+	0x8326,0x8329,0x832A,0x832E,0x8330,0x8332,0x8337,0x833B,/* 0x98-0x9F */
+	0x833D,0x5564,0x813E,0x75B2,0x76AE,0x5339,0x75DE,0x50FB,/* 0xA0-0xA7 */
+	0x5C41,0x8B6C,0x7BC7,0x504F,0x7247,0x9A97,0x98D8,0x6F02,/* 0xA8-0xAF */
+	0x74E2,0x7968,0x6487,0x77A5,0x62FC,0x9891,0x8D2B,0x54C1,/* 0xB0-0xB7 */
+	0x8058,0x4E52,0x576A,0x82F9,0x840D,0x5E73,0x51ED,0x74F6,/* 0xB8-0xBF */
+	0x8BC4,0x5C4F,0x5761,0x6CFC,0x9887,0x5A46,0x7834,0x9B44,/* 0xC0-0xC7 */
+	0x8FEB,0x7C95,0x5256,0x6251,0x94FA,0x4EC6,0x8386,0x8461,/* 0xC8-0xCF */
+	0x83E9,0x84B2,0x57D4,0x6734,0x5703,0x666E,0x6D66,0x8C31,/* 0xD0-0xD7 */
+	0x66DD,0x7011,0x671F,0x6B3A,0x6816,0x621A,0x59BB,0x4E03,/* 0xD8-0xDF */
+	0x51C4,0x6F06,0x67D2,0x6C8F,0x5176,0x68CB,0x5947,0x6B67,/* 0xE0-0xE7 */
+	0x7566,0x5D0E,0x8110,0x9F50,0x65D7,0x7948,0x7941,0x9A91,/* 0xE8-0xEF */
+	0x8D77,0x5C82,0x4E5E,0x4F01,0x542F,0xF909,0x780C,0x5668,/* 0xF0-0xF7 */
+	0x6C14,0x8FC4,0x5F03,0x6C7D,0x6CE3,0x8BAB,0x6390,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_C7[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x833E,0x833F,0x8341,0x8342,0x8344,0x8345,0x8348,0x834A,/* 0x40-0x47 */
+	0x834B,0x834C,0x834D,0x834E,0x8353,0x8355,0x8356,0x8357,/* 0x48-0x4F */
+	0x8358,0x8359,0x835D,0x8362,0x8370,0x8371,0x8372,0x8373,/* 0x50-0x57 */
+	0x8374,0x8375,0x8376,0x8379,0x837A,0x837E,0x837F,0x8380,/* 0x58-0x5F */
+	0x8381,0x8382,0x8383,0x8384,0x8387,0x8388,0x838A,0x838B,/* 0x60-0x67 */
+	0x838C,0x838D,0x838F,0x8390,0x8391,0x8394,0x8395,0x8396,/* 0x68-0x6F */
+	0x8397,0x8399,0x839A,0x839D,0x839F,0x83A1,0x83A2,0x83A3,/* 0x70-0x77 */
+	0x83A4,0x83A5,0x83A6,0x83A7,0x83AC,0x83AD,0x83AE,0x0000,/* 0x78-0x7F */
+	
+	0x83AF,0x83B5,0x83BB,0x83BE,0x83BF,0x83C2,0x83C3,0x83C4,/* 0x80-0x87 */
+	0x83C6,0x83C8,0xF93E,0x83CB,0x83CD,0x83CE,0x83D0,0x83D1,/* 0x88-0x8F */
+	0x83D2,0x83D3,0x83D5,0x83D7,0x83D9,0x83DA,0x83DB,0x83DE,/* 0x90-0x97 */
+	0x83E2,0x83E3,0x83E4,0x83E6,0x83E7,0x83E8,0x83EB,0x83EC,/* 0x98-0x9F */
+	0x83ED,0x6070,0x6D3D,0x7275,0x6266,0x948E,0x94C5,0x5343,/* 0xA0-0xA7 */
+	0x8FC1,0x7B7E,0x4EDF,0x8C26,0x4E7E,0x9ED4,0x94B1,0x94B3,/* 0xA8-0xAF */
+	0x524D,0x6F5C,0x9063,0x6D45,0x8C34,0x5811,0x5D4C,0x6B20,/* 0xB0-0xB7 */
+	0x6B49,0x67AA,0x545B,0x8154,0x7F8C,0x5899,0x8537,0x5F3A,/* 0xB8-0xBF */
+	0x62A2,0x6A47,0x9539,0x6572,0x6084,0x6865,0x77A7,0x4E54,/* 0xC0-0xC7 */
+	0x4FA8,0x5DE7,0x9798,0x64AC,0x7FD8,0x5CED,0x4FCF,0x7A8D,/* 0xC8-0xCF */
+	0xFA00,0x8304,0x4E14,0x602F,0x7A83,0x94A6,0x4FB5,0x4EB2,/* 0xD0-0xD7 */
+	0x79E6,0x7434,0x52E4,0x82B9,0x64D2,0x79BD,0x5BDD,0x6C81,/* 0xD8-0xDF */
+	0x9752,0x8F7B,0x6C22,0x503E,0x537F,0x6E05,0x64CE,0xFA12,/* 0xE0-0xE7 */
+	0x6C30,0x60C5,0x9877,0x8BF7,0x5E86,0x743C,0x7A77,0x79CB,/* 0xE8-0xEF */
+	0x4E18,0x90B1,0x7403,0x6C42,0x56DA,0x914B,0x6CC5,0x8D8B,/* 0xF0-0xF7 */
+	0x533A,0x86C6,0x66F2,0x8EAF,0x5C48,0x9A71,0x6E20,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_C8[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x83EE,0x83EF,0x83F3,0x83F4,0x83F5,0x83F6,0x83F7,0x83FA,/* 0x40-0x47 */
+	0x83FB,0x83FC,0x83FE,0x83FF,0x8400,0x8402,0x8405,0x8407,/* 0x48-0x4F */
+	0x8408,0x8409,0x840A,0x8410,0x8412,0x8413,0x8414,0x8415,/* 0x50-0x57 */
+	0x8416,0x8417,0x8419,0x841A,0x841B,0x841E,0x841F,0x8420,/* 0x58-0x5F */
+	0x8421,0x8422,0x8423,0x8429,0x842A,0x842B,0x842C,0x842D,/* 0x60-0x67 */
+	0x842E,0x842F,0x8430,0x8432,0x8433,0x8434,0x8435,0x8436,/* 0x68-0x6F */
+	0x8437,0x8439,0x843A,0x843B,0x843E,0x843F,0x8440,0x8441,/* 0x70-0x77 */
+	0x8442,0x8443,0x8444,0x8445,0x8447,0x8448,0xF96E,0x0000,/* 0x78-0x7F */
+	
+	0x844A,0x844B,0x844C,0x844D,0x844E,0x844F,0x8450,0x8452,/* 0x80-0x87 */
+	0x8453,0x8454,0x8455,0x8456,0x8458,0x845D,0x845E,0x845F,/* 0x88-0x8F */
+	0x8460,0x8462,0x8464,0x8465,0x8466,0x8467,0x8468,0x846A,/* 0x90-0x97 */
+	0x846E,0x846F,0x8470,0x8472,0x8474,0x8477,0x8479,0x847B,/* 0x98-0x9F */
+	0x847C,0x53D6,0x5A36,0x9F8B,0x8DA3,0x53BB,0x5708,0x98A7,/* 0xA0-0xA7 */
+	0x6743,0x919B,0x6CC9,0x5168,0x75CA,0x62F3,0x72AC,0x5238,/* 0xA8-0xAF */
+	0x529D,0x7F3A,0x7094,0x7638,0x5374,0x9E4A,0x69B7,0x786E,/* 0xB0-0xB7 */
+	0x96C0,0x88D9,0x7FA4,0x7136,0x71C3,0x5189,0x67D3,0x74E4,/* 0xB8-0xBF */
+	0x58E4,0x6518,0x56B7,0x8BA9,0x9976,0x6270,0x7ED5,0x60F9,/* 0xC0-0xC7 */
+	0x70ED,0x58EC,0x4EC1,0x4EBA,0x5FCD,0x97E7,0x4EFB,0x8BA4,/* 0xC8-0xCF */
+	0x5203,0x598A,0x7EAB,0x6254,0x4ECD,0x65E5,0x620E,0x8338,/* 0xD0-0xD7 */
+	0x84C9,0x8363,0x878D,0x7194,0x6EB6,0x5BB9,0x7ED2,0x5197,/* 0xD8-0xDF */
+	0x63C9,0x67D4,0x8089,0x8339,0x8815,0x5112,0x5B7A,0x5982,/* 0xE0-0xE7 */
+	0x8FB1,0x4E73,0x6C5D,0x5165,0x8925,0x8F6F,0xF9C6,0x854A,/* 0xE8-0xEF */
+	0x745E,0x9510,0x95F0,0x6DA6,0xF974,0x5F31,0x6492,0x6D12,/* 0xF0-0xF7 */
+	0x8428,0x816E,0x9CC3,0xF96C,0x8D5B,0x4E09,0x53C1,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_C9[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x847D,0x847E,0x847F,0x8480,0x8481,0x8483,0x8484,0x8485,/* 0x40-0x47 */
+	0x8486,0x848A,0x848D,0x848F,0x8490,0x8491,0x8492,0x8493,/* 0x48-0x4F */
+	0x8494,0x8495,0x8496,0x8498,0x849A,0x849B,0x849D,0x849E,/* 0x50-0x57 */
+	0x849F,0x84A0,0x84A2,0x84A3,0x84A4,0x84A5,0x84A6,0x84A7,/* 0x58-0x5F */
+	0x84A8,0x84A9,0x84AA,0x84AB,0x84AC,0x84AD,0x84AE,0x84B0,/* 0x60-0x67 */
+	0x84B1,0x84B3,0x84B5,0x84B6,0x84B7,0x84BB,0x84BC,0x84BE,/* 0x68-0x6F */
+	0x84C0,0x84C2,0x84C3,0x84C5,0x84C6,0x84C7,0x84C8,0x84CB,/* 0x70-0x77 */
+	0x84CC,0x84CE,0x84CF,0x84D2,0x84D4,0x84D5,0x84D7,0x0000,/* 0x78-0x7F */
+	
+	0x84D8,0x84D9,0x84DA,0x84DB,0x84DC,0x84DE,0x84E1,0x84E2,/* 0x80-0x87 */
+	0x84E4,0x84E7,0x84E8,0x84E9,0x84EA,0x84EB,0x84ED,0xF999,/* 0x88-0x8F */
+	0x84EF,0x84F1,0x84F2,0x84F3,0x84F4,0x84F5,0x84F6,0x84F7,/* 0x90-0x97 */
+	0x84F8,0x84F9,0x84FA,0x84FB,0x84FD,0x84FE,0x8500,0x8501,/* 0x98-0x9F */
+	0x8502,0x4F1E,0x6563,0x6851,0x55D3,0x4E27,0x6414,0x9A9A,/* 0xA0-0xA7 */
+	0x626B,0x5AC2,0x745F,0x8272,0x6DA9,0x68EE,0x50E7,0x838E,/* 0xA8-0xAF */
+	0x7802,0x6740,0x5239,0x6C99,0x7EB1,0x50BB,0x5565,0x715E,/* 0xB0-0xB7 */
+	0x7B5B,0x6652,0x73CA,0x82EB,0x6749,0x5C71,0x5220,0x717D,/* 0xB8-0xBF */
+	0x886B,0x95EA,0x9655,0x64C5,0x8D61,0x81B3,0x5584,0x6C55,/* 0xC0-0xC7 */
+	0x6247,0x7F2E,0x5892,0x4F24,0x5546,0x8D4F,0x664C,0x4E0A,/* 0xC8-0xCF */
+	0x5C1A,0x88F3,0x68A2,0x634E,0x7A0D,0x70E7,0x828D,0x52FA,/* 0xD0-0xD7 */
+	0x97F6,0x5C11,0x54E8,0x90B5,0x7ECD,0x5962,0x8D4A,0x86C7,/* 0xD8-0xDF */
+	0x820C,0x820D,0x8D66,0x6444,0x5C04,0x6151,0x6D89,0x793E,/* 0xE0-0xE7 */
+	0x8BBE,0x7837,0x7533,0x547B,0x4F38,0x8EAB,0x6DF1,0x5A20,/* 0xE8-0xEF */
+	0x7EC5,0xFA19,0xF972,0x5BA1,0x5A76,0x751A,0x80BE,0x614E,/* 0xF0-0xF7 */
+	0x6E17,0x58F0,0x751F,0x7525,0x7272,0x5347,0x7EF3,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_CA[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8503,0x8504,0x8505,0x8506,0x8507,0x8508,0x8509,0x850A,/* 0x40-0x47 */
+	0x850B,0x850D,0x850E,0x850F,0x8510,0x8512,0x8514,0x8515,/* 0x48-0x4F */
+	0x8516,0x8518,0x8519,0x851B,0x851C,0x851D,0x851E,0x8520,/* 0x50-0x57 */
+	0x8522,0x8523,0x8524,0x8525,0x8526,0x8527,0x8528,0x8529,/* 0x58-0x5F */
+	0x852A,0x852D,0x852E,0x852F,0x8530,0x8531,0x8532,0x8533,/* 0x60-0x67 */
+	0x8534,0x8535,0x8536,0x853E,0x853F,0x8540,0x8541,0x8542,/* 0x68-0x6F */
+	0x8544,0x8545,0x8546,0x8547,0x854B,0x854C,0x854D,0x854E,/* 0x70-0x77 */
+	0x854F,0x8550,0x8551,0x8552,0x8553,0x8554,0x8555,0x0000,/* 0x78-0x7F */
+	
+	0x8557,0x8558,0x855A,0x855B,0x855C,0x855D,0x855F,0x8560,/* 0x80-0x87 */
+	0x8561,0x8562,0x8563,0x8565,0x8566,0x8567,0x8569,0x856A,/* 0x88-0x8F */
+	0x856B,0x856C,0x856D,0x856E,0x856F,0x8570,0x8571,0x8573,/* 0x90-0x97 */
+	0x8575,0x8576,0x8577,0x8578,0x857C,0x857D,0x857F,0x8580,/* 0x98-0x9F */
+	0x8581,0xF96D,0x76DB,0x5269,0x80DC,0x5723,0x5E08,0x5931,/* 0xA0-0xA7 */
+	0x72EE,0x65BD,0x6E7F,0x8BD7,0x5C38,0x8671,0x5341,0x77F3,/* 0xA8-0xAF */
+	0xF973,0x65F6,0xF9FD,0x98DF,0x8680,0x5B9E,0x8BC6,0x53F2,/* 0xB0-0xB7 */
+	0x77E2,0x4F7F,0x5C4E,0x9A76,0x59CB,0x5F0F,0x793A,0x58EB,/* 0xB8-0xBF */
+	0x4E16,0x67FF,0x4E8B,0x62ED,0x8A93,0x901D,0x52BF,0x662F,/* 0xC0-0xC7 */
+	0x55DC,0x566C,0x9002,0x4ED5,0x4F8D,0x91CA,0x9970,0x6C0F,/* 0xC8-0xCF */
+	0x5E02,0x6043,0x5BA4,0x89C6,0x8BD5,0x6536,0x624B,0x9996,/* 0xD0-0xD7 */
+	0x5B88,0x5BFF,0x6388,0x552E,0x53D7,0x7626,0x517D,0x852C,/* 0xD8-0xDF */
+	0x67A2,0x68B3,0x6B8A,0x6292,0x8F93,0x53D4,0x8212,0x6DD1,/* 0xE0-0xE7 */
+	0x758F,0x4E66,0x8D4E,0x5B70,0x719F,0x85AF,0x6691,0x66D9,/* 0xE8-0xEF */
+	0x7F72,0x8700,0x9ECD,0x9F20,0x5C5E,0x672F,0x8FF0,0x6811,/* 0xF0-0xF7 */
+	0x675F,0x620D,0x7AD6,0x5885,0x5EB6,0x6570,0x6F31,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_CB[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8582,0x8583,0x8586,0x8588,0x8589,0x858A,0x858B,0x858C,/* 0x40-0x47 */
+	0x858D,0x858E,0x8590,0x8591,0x8592,0x8593,0x8594,0x8595,/* 0x48-0x4F */
+	0x8596,0x8597,0x8598,0x8599,0x859A,0x859D,0x859E,0x859F,/* 0x50-0x57 */
+	0x85A0,0x85A1,0x85A2,0x85A3,0x85A5,0x85A6,0x85A7,0x85A9,/* 0x58-0x5F */
+	0x85AB,0x85AC,0x85AD,0x85B1,0x85B2,0x85B3,0x85B4,0x85B5,/* 0x60-0x67 */
+	0x85B6,0x85B8,0x85BA,0x85BB,0x85BC,0x85BD,0x85BE,0x85BF,/* 0x68-0x6F */
+	0x85C0,0x85C2,0x85C3,0x85C4,0x85C5,0x85C6,0x85C7,0x85C8,/* 0x70-0x77 */
+	0x85CA,0x85CB,0x85CC,0xF923,0x85CE,0x85D1,0x85D2,0x0000,/* 0x78-0x7F */
+	
+	0x85D4,0x85D6,0x85D7,0x85D8,0x85D9,0x85DA,0x85DB,0x85DD,/* 0x80-0x87 */
+	0x85DE,0x85DF,0x85E0,0x85E1,0x85E2,0x85E3,0x85E5,0x85E6,/* 0x88-0x8F */
+	0x85E7,0x85E8,0x85EA,0x85EB,0x85EC,0x85ED,0x85EE,0x85EF,/* 0x90-0x97 */
+	0x85F0,0x85F1,0x85F2,0x85F3,0x85F4,0x85F5,0x85F6,0x85F7,/* 0x98-0x9F */
+	0x85F8,0x6055,0x5237,0x800D,0x6454,0x8870,0x7529,0x5E05,/* 0xA0-0xA7 */
+	0x6813,0x62F4,0x971C,0x53CC,0x723D,0x8C01,0x6C34,0x7761,/* 0xA8-0xAF */
+	0x7A0E,0x542E,0x77AC,0x987A,0x821C,0x8BF4,0x7855,0x6714,/* 0xB0-0xB7 */
+	0x70C1,0x65AF,0x6495,0x5636,0x601D,0x79C1,0x53F8,0x4E1D,/* 0xB8-0xBF */
+	0x6B7B,0x8086,0x5BFA,0x55E3,0x56DB,0x4F3A,0x4F3C,0x9972,/* 0xC0-0xC7 */
+	0x5DF3,0x677E,0x8038,0x6002,0x9882,0x9001,0x5B8B,0x8BBC,/* 0xC8-0xCF */
+	0x8BF5,0x641C,0x8258,0x64DE,0x55FD,0x82CF,0x9165,0x4FD7,/* 0xD0-0xD7 */
+	0x7D20,0x901F,0x7C9F,0x50F3,0x5851,0x6EAF,0x5BBF,0x8BC9,/* 0xD8-0xDF */
+	0x8083,0x9178,0x849C,0x7B97,0x867D,0x968B,0x968F,0x7EE5,/* 0xE0-0xE7 */
+	0x9AD3,0x788E,0x5C81,0x7A57,0x9042,0x96A7,0x795F,0x5B59,/* 0xE8-0xEF */
+	0x635F,0x7B0B,0x84D1,0x68AD,0x5506,0x7F29,0x7410,0xF96A,/* 0xF0-0xF7 */
+	0x9501,0x6240,0x584C,0x4ED6,0x5B83,0x5979,0x5854,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_CC[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x85F9,0xF9F0,0x85FC,0x85FD,0x85FE,0x8600,0x8601,0x8602,/* 0x40-0x47 */
+	0x8603,0x8604,0xF935,0x8607,0x8608,0x8609,0x860A,0x860B,/* 0x48-0x4F */
+	0x860C,0x860D,0x860E,0x860F,0x8610,0x8612,0x8613,0x8614,/* 0x50-0x57 */
+	0x8615,0x8617,0x8618,0x8619,0x861A,0x861B,0x861C,0x861D,/* 0x58-0x5F */
+	0x861E,0x861F,0x8620,0x8621,0x8622,0x8623,0x8624,0x8625,/* 0x60-0x67 */
+	0x8626,0x8628,0x862A,0x862B,0x862C,0xF91F,0x862E,0x862F,/* 0x68-0x6F */
+	0x8630,0x8631,0x8632,0x8633,0x8634,0x8635,0x8636,0x8637,/* 0x70-0x77 */
+	0x8639,0x863A,0x863B,0x863D,0x863E,0xF910,0x8640,0x0000,/* 0x78-0x7F */
+	
+	0x8641,0x8642,0x8643,0x8644,0x8645,0x8646,0x8647,0x8648,/* 0x80-0x87 */
+	0x8649,0x864A,0x864B,0x864C,0x8652,0x8653,0x8655,0x8656,/* 0x88-0x8F */
+	0x8657,0x8658,0x8659,0x865B,0xF936,0x865D,0x865F,0x8660,/* 0x90-0x97 */
+	0x8661,0x8663,0x8664,0x8665,0x8666,0x8667,0x8668,0x8669,/* 0x98-0x9F */
+	0x866A,0x736D,0x631E,0x8E4B,0x8E0F,0x80CE,0x82D4,0x62AC,/* 0xA0-0xA7 */
+	0x53F0,0x6CF0,0x915E,0x592A,0x6001,0x6C70,0x574D,0x644A,/* 0xA8-0xAF */
+	0x8D2A,0x762B,0x6EE9,0x575B,0x6A80,0x75F0,0x6F6D,0x8C2D,/* 0xB0-0xB7 */
+	0x8C08,0x5766,0x6BEF,0x8892,0x78B3,0x63A2,0x53F9,0x70AD,/* 0xB8-0xBF */
+	0x6C64,0x5858,0x642A,0x5802,0x68E0,0x819B,0x5510,0xFA03,/* 0xC0-0xC7 */
+	0x5018,0x8EBA,0x6DCC,0x8D9F,0x70EB,0x638F,0x6D9B,0x6ED4,/* 0xC8-0xCF */
+	0x7EE6,0x8404,0x6843,0x9003,0x6DD8,0x9676,0x8BA8,0x5957,/* 0xD0-0xD7 */
+	0x7279,0x85E4,0x817E,0x75BC,0x8A8A,0x68AF,0x5254,0x8E22,/* 0xD8-0xDF */
+	0x9511,0x63D0,0x9898,0x8E44,0x557C,0x4F53,0x66FF,0x568F,/* 0xE0-0xE7 */
+	0x60D5,0x6D95,0x5243,0x5C49,0x5929,0x6DFB,0x586B,0x7530,/* 0xE8-0xEF */
+	0x751C,0x606C,0x8214,0x8146,0x6311,0x6761,0x8FE2,0x773A,/* 0xF0-0xF7 */
+	0x8DF3,0x8D34,0x94C1,0x5E16,0x5385,0x542C,0x70C3,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_CD[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x866D,0x866F,0x8670,0x8672,0x8673,0x8674,0x8675,0x8676,/* 0x40-0x47 */
+	0x8677,0x8678,0x8683,0x8684,0x8685,0x8686,0x8687,0x8688,/* 0x48-0x4F */
+	0x8689,0x868E,0x868F,0x8690,0x8691,0x8692,0x8694,0x8696,/* 0x50-0x57 */
+	0x8697,0x8698,0x8699,0x869A,0x869B,0x869E,0x869F,0x86A0,/* 0x58-0x5F */
+	0x86A1,0x86A2,0x86A5,0x86A6,0x86AB,0x86AD,0x86AE,0x86B2,/* 0x60-0x67 */
+	0x86B3,0x86B7,0x86B8,0x86B9,0x86BB,0x86BC,0x86BD,0x86BE,/* 0x68-0x6F */
+	0x86BF,0x86C1,0x86C2,0x86C3,0x86C5,0x86C8,0x86CC,0x86CD,/* 0x70-0x77 */
+	0x86D2,0x86D3,0x86D5,0x86D6,0x86D7,0x86DA,0x86DC,0x0000,/* 0x78-0x7F */
+	
+	0x86DD,0x86E0,0x86E1,0x86E2,0x86E3,0x86E5,0x86E6,0x86E7,/* 0x80-0x87 */
+	0x86E8,0x86EA,0x86EB,0x86EC,0x86EF,0x86F5,0x86F6,0x86F7,/* 0x88-0x8F */
+	0x86FA,0x86FB,0x86FC,0x86FD,0x86FF,0x8701,0x8704,0x8705,/* 0x90-0x97 */
+	0x8706,0x870B,0x870C,0x870E,0x870F,0x8710,0x8711,0x8714,/* 0x98-0x9F */
+	0x8716,0x6C40,0x5EF7,0x505C,0x4EAD,0x5EAD,0x633A,0x8247,/* 0xA0-0xA7 */
+	0x901A,0x6850,0x916E,0x77B3,0x540C,0x94DC,0x5F64,0x7AE5,/* 0xA8-0xAF */
+	0x6876,0x6345,0x7B52,0x7EDF,0x75DB,0x5077,0x6295,0x5934,/* 0xB0-0xB7 */
+	0x900F,0x51F8,0x79C3,0x7A81,0x56FE,0x5F92,0x9014,0x6D82,/* 0xB8-0xBF */
+	0x5C60,0x571F,0x5410,0x5154,0x6E4D,0x56E2,0x63A8,0x9893,/* 0xC0-0xC7 */
+	0x817F,0x8715,0x892A,0x9000,0x541E,0x5C6F,0x81C0,0x62D6,/* 0xC8-0xCF */
+	0x6258,0x8131,0x9E35,0x9640,0x9A6E,0x9A7C,0x692D,0x59A5,/* 0xD0-0xD7 */
+	0xFA02,0x553E,0x6316,0x54C7,0x86D9,0x6D3C,0x5A03,0x74E6,/* 0xD8-0xDF */
+	0x889C,0x6B6A,0x5916,0x8C4C,0x5F2F,0x6E7E,0x73A9,0x987D,/* 0xE0-0xE7 */
+	0x4E38,0x70F7,0x5B8C,0x7897,0x633D,0x665A,0x7696,0x60CB,/* 0xE8-0xEF */
+	0x5B9B,0x5A49,0x4E07,0x8155,0x6C6A,0x738B,0x4EA1,0x6789,/* 0xF0-0xF7 */
+	0x7F51,0x5F80,0x65FA,0x671B,0x5FD8,0x5984,0x5A01,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_CE[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8719,0x871B,0x871D,0x871F,0x8720,0x8724,0x8726,0x8727,/* 0x40-0x47 */
+	0x8728,0x872A,0x872B,0x872C,0x872D,0x872F,0x8730,0x8732,/* 0x48-0x4F */
+	0x8733,0x8735,0x8736,0x8738,0x8739,0x873A,0x873C,0x873D,/* 0x50-0x57 */
+	0x8740,0x8741,0x8742,0x8743,0x8744,0x8745,0x8746,0x874A,/* 0x58-0x5F */
+	0x874B,0x874D,0x874F,0x8750,0x8751,0x8752,0x8754,0x8755,/* 0x60-0x67 */
+	0x8756,0x8758,0x875A,0x875B,0x875C,0x875D,0x875E,0x875F,/* 0x68-0x6F */
+	0x8761,0x8762,0x8766,0x8767,0x8768,0x8769,0x876A,0x876B,/* 0x70-0x77 */
+	0x876C,0x876D,0x876F,0x8771,0x8772,0x8773,0x8775,0x0000,/* 0x78-0x7F */
+	
+	0x8777,0x8778,0x8779,0x877A,0x877F,0x8780,0x8781,0x8784,/* 0x80-0x87 */
+	0x8786,0x8787,0x8789,0x878A,0x878C,0x878E,0x878F,0x8790,/* 0x88-0x8F */
+	0x8791,0x8792,0x8794,0x8795,0x8796,0x8798,0x8799,0x879A,/* 0x90-0x97 */
+	0x879B,0x879C,0x879D,0x879E,0x87A0,0x87A1,0x87A2,0x87A3,/* 0x98-0x9F */
+	0x87A4,0x5DCD,0x5FAE,0x5371,0x97E6,0x8FDD,0x6845,0x56F4,/* 0xA0-0xA7 */
+	0x552F,0x60DF,0x4E3A,0x6F4D,0x7EF4,0x82C7,0x840E,0x59D4,/* 0xA8-0xAF */
+	0x4F1F,0x4F2A,0x5C3E,0x7EAC,0x672A,0x851A,0x5473,0x754F,/* 0xB0-0xB7 */
+	0x80C3,0x5582,0x9B4F,0x4F4D,0x6E2D,0x8C13,0x5C09,0x6170,/* 0xB8-0xBF */
+	0x536B,0x761F,0x6E29,0x868A,0x6587,0x95FB,0x7EB9,0x543B,/* 0xC0-0xC7 */
+	0x7A33,0x7D0A,0x95EE,0x55E1,0x7FC1,0x74EE,0x631D,0x8717,/* 0xC8-0xCF */
+	0x6DA1,0x7A9D,0x6211,0x65A1,0x5367,0x63E1,0x6C83,0x5DEB,/* 0xD0-0xD7 */
+	0x545C,0x94A8,0x4E4C,0x6C61,0x8BEC,0x5C4B,0x65E0,0x829C,/* 0xD8-0xDF */
+	0x68A7,0x543E,0x5434,0x6BCB,0x6B66,0x4E94,0x6342,0x5348,/* 0xE0-0xE7 */
+	0x821E,0x4F0D,0x4FAE,0x575E,0x620A,0x96FE,0x6664,0x7269,/* 0xE8-0xEF */
+	0x52FF,0x52A1,0x609F,0x8BEF,0x6614,0x7199,0x6790,0x897F,/* 0xF0-0xF7 */
+	0x7852,0x77FD,0x6670,0x563B,0x5438,0x9521,0x727A,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_CF[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x87A5,0x87A6,0x87A7,0x87A9,0x87AA,0x87AE,0x87B0,0x87B1,/* 0x40-0x47 */
+	0x87B2,0x87B4,0x87B6,0x87B7,0x87B8,0x87B9,0x87BB,0x87BC,/* 0x48-0x4F */
+	0x87BE,0x87BF,0x87C1,0x87C2,0x87C3,0x87C4,0x87C5,0x87C7,/* 0x50-0x57 */
+	0x87C8,0x87C9,0x87CC,0x87CD,0x87CE,0x87CF,0x87D0,0x87D4,/* 0x58-0x5F */
+	0x87D5,0x87D6,0x87D7,0x87D8,0x87D9,0x87DA,0x87DC,0x87DD,/* 0x60-0x67 */
+	0x87DE,0x87DF,0x87E1,0x87E2,0x87E3,0x87E4,0x87E6,0x87E7,/* 0x68-0x6F */
+	0x87E8,0x87E9,0x87EB,0x87EC,0x87ED,0x87EF,0x87F0,0x87F1,/* 0x70-0x77 */
+	0x87F2,0x87F3,0x87F4,0x87F5,0x87F6,0x87F7,0x87F8,0x0000,/* 0x78-0x7F */
+	
+	0x87FA,0x87FB,0x87FC,0x87FD,0x87FF,0x8800,0x8801,0x8802,/* 0x80-0x87 */
+	0x8804,0x8805,0x8806,0x8807,0x8808,0x8809,0x880B,0x880C,/* 0x88-0x8F */
+	0x880D,0x880E,0x880F,0x8810,0x8811,0x8812,0x8814,0x8817,/* 0x90-0x97 */
+	0x8818,0x8819,0x881A,0x881C,0x881D,0x881E,0xF927,0x8820,/* 0x98-0x9F */
+	0x8823,0x7A00,0x606F,0x5E0C,0x6089,0x819D,0x5915,0x60DC,/* 0xA0-0xA7 */
+	0x7184,0x70EF,0x6EAA,0x6C50,0x7280,0x6A84,0x88AD,0x5E2D,/* 0xA8-0xAF */
+	0x4E60,0x5AB3,0x559C,0x94E3,0x6D17,0x7CFB,0x9699,0x620F,/* 0xB0-0xB7 */
+	0x7EC6,0x778E,0x867E,0x5323,0x971E,0x8F96,0x6687,0x5CE1,/* 0xB8-0xBF */
+	0x4FA0,0x72ED,0x4E0B,0x53A6,0x590F,0x5413,0x6380,0x9528,/* 0xC0-0xC7 */
+	0x5148,0x4ED9,0x9C9C,0x7EA4,0x54B8,0x8D24,0x8854,0x8237,/* 0xC8-0xCF */
+	0x95F2,0x6D8E,0x5F26,0x5ACC,0x663E,0x9669,0x73B0,0x732E,/* 0xD0-0xD7 */
+	0x53BF,0x817A,0x9985,0x7FA1,0x5BAA,0x9677,0x9650,0x7EBF,/* 0xD8-0xDF */
+	0x76F8,0x53A2,0x9576,0x9999,0x7BB1,0x8944,0x6E58,0x4E61,/* 0xE0-0xE7 */
+	0x7FD4,0xFA1A,0x8BE6,0x60F3,0x54CD,0x4EAB,0x9879,0x5DF7,/* 0xE8-0xEF */
+	0x6A61,0x50CF,0x5411,0x8C61,0x8427,0x785D,0x9704,0x524A,/* 0xF0-0xF7 */
+	0x54EE,0x56A3,0x9500,0x6D88,0x5BB5,0x6DC6,0x6653,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D0[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8824,0x8825,0x8826,0x8827,0x8828,0x8829,0x882A,0x882B,/* 0x40-0x47 */
+	0x882C,0x882D,0x882E,0x882F,0x8830,0x8831,0x8833,0x8834,/* 0x48-0x4F */
+	0x8835,0x8836,0x8837,0x8838,0x883A,0x883B,0x883D,0x883E,/* 0x50-0x57 */
+	0x883F,0x8841,0x8842,0x8843,0x8846,0x8847,0x8848,0x8849,/* 0x58-0x5F */
+	0x884A,0x884B,0x884E,0x884F,0x8850,0x8851,0x8852,0x8853,/* 0x60-0x67 */
+	0x8855,0x8856,0x8858,0x885A,0x885B,0x885C,0x885D,0x885E,/* 0x68-0x6F */
+	0x885F,0x8860,0x8866,0x8867,0x886A,0x886D,0x886F,0x8871,/* 0x70-0x77 */
+	0x8873,0x8874,0x8875,0x8876,0x8878,0x8879,0x887A,0x0000,/* 0x78-0x7F */
+	
+	0x887B,0x887C,0x8880,0x8883,0x8886,0x8887,0x8889,0x888A,/* 0x80-0x87 */
+	0x888C,0x888E,0x888F,0x8890,0x8891,0x8893,0x8894,0x8895,/* 0x88-0x8F */
+	0x8897,0x8898,0x8899,0x889A,0x889B,0x889D,0x889E,0x889F,/* 0x90-0x97 */
+	0x88A0,0x88A1,0x88A3,0x88A5,0x88A6,0x88A7,0x88A8,0x88A9,/* 0x98-0x9F */
+	0x88AA,0x5C0F,0x5B5D,0x6821,0x8096,0x5578,0x7B11,0x6548,/* 0xA0-0xA7 */
+	0x6954,0x4E9B,0x6B47,0x874E,0x978B,0x534F,0x631F,0x643A,/* 0xA8-0xAF */
+	0x90AA,0x659C,0x80C1,0x8C10,0x5199,0x68B0,0x5378,0x87F9,/* 0xB0-0xB7 */
+	0x61C8,0x6CC4,0x6CFB,0x8C22,0x5C51,0x85AA,0x82AF,0x950C,/* 0xB8-0xBF */
+	0x6B23,0x8F9B,0x65B0,0x5FFB,0x5FC3,0x4FE1,0x8845,0x661F,/* 0xC0-0xC7 */
+	0x8165,0x7329,0x60FA,0x5174,0x5211,0x578B,0x5F62,0x90A2,/* 0xC8-0xCF */
+	0xFA08,0x9192,0x5E78,0x674F,0x6027,0x59D3,0x5144,0x51F6,/* 0xD0-0xD7 */
+	0x80F8,0x5308,0x6C79,0x96C4,0x718A,0x4F11,0x4FEE,0x7F9E,/* 0xD8-0xDF */
+	0x673D,0x55C5,0x9508,0x79C0,0x8896,0x7EE3,0x589F,0x620C,/* 0xE0-0xE7 */
+	0x9700,0x865A,0x5618,0x987B,0x5F90,0x8BB8,0x84C4,0x9157,/* 0xE8-0xEF */
+	0x53D9,0x65ED,0x5E8F,0x755C,0x6064,0x7D6E,0x5A7F,0x7EEA,/* 0xF0-0xF7 */
+	0x7EED,0x8F69,0x55A7,0x5BA3,0x60AC,0x65CB,0x7384,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D1[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x88AC,0x88AE,0x88AF,0x88B0,0x88B2,0x88B3,0x88B4,0x88B5,/* 0x40-0x47 */
+	0x88B6,0x88B8,0x88B9,0x88BA,0x88BB,0x88BD,0x88BE,0x88BF,/* 0x48-0x4F */
+	0x88C0,0x88C3,0x88C4,0x88C7,0x88C8,0x88CA,0x88CB,0x88CC,/* 0x50-0x57 */
+	0x88CD,0x88CF,0x88D0,0x88D1,0x88D3,0x88D6,0x88D7,0x88DA,/* 0x58-0x5F */
+	0x88DB,0x88DC,0x88DD,0x88DE,0x88E0,0xF9E8,0x88E6,0x88E7,/* 0x60-0x67 */
+	0x88E9,0x88EA,0x88EB,0x88EC,0x88ED,0x88EE,0x88EF,0x88F2,/* 0x68-0x6F */
+	0x88F5,0x88F6,0x88F7,0x88FA,0x88FB,0x88FD,0x88FF,0x8900,/* 0x70-0x77 */
+	0x8901,0x8903,0x8904,0x8905,0x8906,0x8907,0x8908,0x0000,/* 0x78-0x7F */
+	
+	0x8909,0x890B,0x890C,0x890D,0x890E,0x890F,0x8911,0x8914,/* 0x80-0x87 */
+	0x8915,0x8916,0x8917,0x8918,0x891C,0x891D,0x891E,0x891F,/* 0x88-0x8F */
+	0x8920,0x8922,0x8923,0x8924,0x8926,0x8927,0x8928,0x8929,/* 0x90-0x97 */
+	0x892C,0x892D,0x892E,0x892F,0x8931,0x8932,0x8933,0x8935,/* 0x98-0x9F */
+	0x8937,0x9009,0x7663,0x7729,0x7EDA,0x9774,0x859B,0x5B66,/* 0xA0-0xA7 */
+	0x7A74,0x96EA,0x8840,0x52CB,0x718F,0x5FAA,0x65EC,0x8BE2,/* 0xA8-0xAF */
+	0x5BFB,0x9A6F,0x5DE1,0x6B89,0x6C5B,0x8BAD,0x8BAF,0x900A,/* 0xB0-0xB7 */
+	0x8FC5,0x538B,0x62BC,0x9E26,0x9E2D,0x5440,0x4E2B,0x82BD,/* 0xB8-0xBF */
+	0x7259,0x869C,0x5D16,0x8859,0x6DAF,0x96C5,0x54D1,0x4E9A,/* 0xC0-0xC7 */
+	0x8BB6,0x7109,0xF99E,0x9609,0x70DF,0x6DF9,0x76D0,0x4E25,/* 0xC8-0xCF */
+	0x7814,0x8712,0x5CA9,0x5EF6,0x8A00,0x989C,0x960E,0x708E,/* 0xD0-0xD7 */
+	0x6CBF,0x5944,0x63A9,0x773C,0x884D,0x6F14,0x8273,0x5830,/* 0xD8-0xDF */
+	0x71D5,0x538C,0x781A,0x96C1,0x5501,0x5F66,0x7130,0x5BB4,/* 0xE0-0xE7 */
+	0x8C1A,0x9A8C,0x6B83,0x592E,0x9E2F,0x79E7,0x6768,0x626C,/* 0xE8-0xEF */
+	0x4F6F,0x75A1,0x7F8A,0x6D0B,0x9633,0x6C27,0x4EF0,0x75D2,/* 0xF0-0xF7 */
+	0x517B,0x6837,0x6F3E,0x9080,0x8170,0x5996,0x7476,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D2[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8938,0x8939,0x893A,0x893B,0x893C,0x893D,0x893E,0x893F,/* 0x40-0x47 */
+	0x8940,0x8942,0x8943,0x8945,0x8946,0x8947,0x8948,0x8949,/* 0x48-0x4F */
+	0x894A,0x894B,0x894C,0x894D,0x894E,0x894F,0x8950,0x8951,/* 0x50-0x57 */
+	0x8952,0x8953,0x8954,0x8955,0x8956,0x8957,0x8958,0x8959,/* 0x58-0x5F */
+	0x895A,0x895B,0x895C,0x895D,0x8960,0x8961,0x8962,0x8963,/* 0x60-0x67 */
+	0xF924,0x8965,0x8967,0x8968,0x8969,0x896A,0x896B,0x896C,/* 0x68-0x6F */
+	0x896D,0x896E,0x896F,0x8970,0x8971,0x8972,0x8973,0x8974,/* 0x70-0x77 */
+	0x8975,0x8976,0x8977,0x8978,0x8979,0x897A,0x897C,0x0000,/* 0x78-0x7F */
+	
+	0x897D,0x897E,0x8980,0x8982,0x8984,0x8985,0x8987,0x8988,/* 0x80-0x87 */
+	0x8989,0x898A,0xFA0A,0x898C,0x898D,0x898E,0x898F,0x8990,/* 0x88-0x8F */
+	0x8991,0x8992,0x8993,0x8994,0x8995,0x8996,0x8997,0x8998,/* 0x90-0x97 */
+	0x8999,0x899A,0x899B,0x899C,0x899D,0x899E,0x899F,0x89A0,/* 0x98-0x9F */
+	0x89A1,0x6447,0x5C27,0x9065,0x7A91,0x8C23,0x59DA,0x54AC,/* 0xA0-0xA7 */
+	0x8200,0x836F,0x8981,0x8000,0x6930,0x564E,0x8036,0x7237,/* 0xA8-0xAF */
+	0x91CE,0x51B6,0x4E5F,0x9875,0x6396,0x4E1A,0x53F6,0x66F3,/* 0xB0-0xB7 */
+	0x814B,0x591C,0x6DB2,0x4E00,0x58F9,0x533B,0x63D6,0x94F1,/* 0xB8-0xBF */
+	0x4F9D,0x4F0A,0x8863,0x9890,0x5937,0x9057,0x79FB,0x4EEA,/* 0xC0-0xC7 */
+	0x80F0,0x7591,0x6C82,0x5B9C,0x59E8,0x5F5D,0x6905,0x8681,/* 0xC8-0xCF */
+	0x501A,0x5DF2,0x4E59,0x77E3,0x4EE5,0x827A,0x6291,0xF9E0,/* 0xD0-0xD7 */
+	0x9091,0x5C79,0x4EBF,0x5F79,0x81C6,0xFA25,0x8084,0x75AB,/* 0xD8-0xDF */
+	0x4EA6,0x88D4,0x610F,0x6BC5,0x5FC6,0x4E49,0xFA17,0x6EA2,/* 0xE0-0xE7 */
+	0x8BE3,0x8BAE,0x8C0A,0x8BD1,0x5F02,0x7FFC,0x7FCC,0x7ECE,/* 0xE8-0xEF */
+	0x8335,0x836B,0x56E0,0x6BB7,0x97F3,0x9634,0x59FB,0x541F,/* 0xF0-0xF7 */
+	0x94F6,0x6DEB,0x5BC5,0x996E,0x5C39,0x5F15,0x9690,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D3[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x89A2,0x89A3,0x89A4,0x89A5,0x89A6,0x89A7,0x89A8,0x89A9,/* 0x40-0x47 */
+	0x89AA,0x89AB,0x89AC,0x89AD,0x89AE,0x89AF,0x89B0,0x89B1,/* 0x48-0x4F */
+	0x89B2,0x89B3,0x89B4,0x89B5,0x89B6,0x89B7,0x89B8,0x89B9,/* 0x50-0x57 */
+	0x89BA,0x89BB,0x89BC,0x89BD,0x89BE,0x89BF,0x89C0,0x89C3,/* 0x58-0x5F */
+	0x89CD,0x89D3,0x89D4,0x89D5,0x89D7,0x89D8,0x89D9,0x89DB,/* 0x60-0x67 */
+	0x89DD,0x89DF,0x89E0,0x89E1,0x89E2,0x89E4,0x89E7,0x89E8,/* 0x68-0x6F */
+	0x89E9,0x89EA,0x89EC,0x89ED,0x89EE,0x89F0,0x89F1,0x89F2,/* 0x70-0x77 */
+	0x89F4,0x89F5,0x89F6,0x89F7,0x89F8,0x89F9,0x89FA,0x0000,/* 0x78-0x7F */
+	
+	0x89FB,0x89FC,0x89FD,0x89FE,0x89FF,0x8A01,0x8A02,0x8A03,/* 0x80-0x87 */
+	0x8A04,0x8A05,0x8A06,0x8A08,0x8A09,0x8A0A,0x8A0B,0x8A0C,/* 0x88-0x8F */
+	0x8A0D,0x8A0E,0x8A0F,0x8A10,0x8A11,0x8A12,0x8A13,0x8A14,/* 0x90-0x97 */
+	0x8A15,0x8A16,0x8A17,0x8A18,0x8A19,0x8A1A,0x8A1B,0x8A1C,/* 0x98-0x9F */
+	0x8A1D,0x5370,0x82F1,0x6A31,0x5A74,0x9E70,0x5E94,0x7F28,/* 0xA0-0xA7 */
+	0x83B9,0x8424,0x8425,0x8367,0x8747,0x8FCE,0x8D62,0x76C8,/* 0xA8-0xAF */
+	0x5F71,0x9896,0x786C,0x6620,0x54DF,0x62E5,0x4F63,0x81C3,/* 0xB0-0xB7 */
+	0x75C8,0x5EB8,0x96CD,0x8E0A,0x86F9,0x548F,0x6CF3,0x6D8C,/* 0xB8-0xBF */
+	0x6C38,0x607F,0x52C7,0x7528,0x5E7D,0x4F18,0x60A0,0x5FE7,/* 0xC0-0xC7 */
+	0x5C24,0x7531,0x90AE,0x94C0,0x72B9,0x6CB9,0x6E38,0x9149,/* 0xC8-0xCF */
+	0x6709,0x53CB,0x53F3,0x4F51,0x91C9,0x8BF1,0x53C8,0x5E7C,/* 0xD0-0xD7 */
+	0x8FC2,0x6DE4,0x4E8E,0x76C2,0x6986,0x865E,0x611A,0x8206,/* 0xD8-0xDF */
+	0x4F59,0x4FDE,0x903E,0x9C7C,0x6109,0x6E1D,0x6E14,0x9685,/* 0xE0-0xE7 */
+	0x4E88,0x5A31,0x96E8,0x4E0E,0x5C7F,0x79B9,0x5B87,0x8BED,/* 0xE8-0xEF */
+	0xFA1E,0x7389,0x57DF,0x828B,0x90C1,0x5401,0x9047,0x55BB,/* 0xF0-0xF7 */
+	0x5CEA,0x5FA1,0x6108,0x6B32,0x72F1,0x80B2,0x8A89,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D4[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8A1E,0x8A1F,0x8A20,0x8A21,0x8A22,0x8A23,0x8A24,0x8A25,/* 0x40-0x47 */
+	0x8A26,0x8A27,0x8A28,0x8A29,0x8A2A,0x8A2B,0x8A2C,0x8A2D,/* 0x48-0x4F */
+	0x8A2E,0x8A2F,0x8A30,0x8A31,0x8A32,0x8A33,0x8A34,0x8A35,/* 0x50-0x57 */
+	0x8A36,0x8A37,0x8A38,0x8A39,0x8A3A,0x8A3B,0x8A3C,0x8A3D,/* 0x58-0x5F */
+	0x8A3F,0x8A40,0x8A41,0x8A42,0x8A43,0x8A44,0x8A45,0x8A46,/* 0x60-0x67 */
+	0x8A47,0x8A49,0x8A4A,0x8A4B,0x8A4C,0x8A4D,0x8A4E,0x8A4F,/* 0x68-0x6F */
+	0x8A50,0x8A51,0x8A52,0x8A53,0x8A54,0x8A55,0x8A56,0x8A57,/* 0x70-0x77 */
+	0x8A58,0x8A59,0x8A5A,0x8A5B,0x8A5C,0x8A5D,0x8A5E,0x0000,/* 0x78-0x7F */
+	
+	0x8A5F,0x8A60,0x8A61,0x8A62,0x8A63,0x8A64,0x8A65,0x8A66,/* 0x80-0x87 */
+	0x8A67,0x8A68,0x8A69,0x8A6A,0x8A6B,0x8A6C,0x8A6D,0x8A6E,/* 0x88-0x8F */
+	0x8A6F,0x8A70,0x8A71,0x8A72,0x8A73,0x8A74,0x8A75,0x8A76,/* 0x90-0x97 */
+	0x8A77,0x8A78,0x8A7A,0x8A7B,0x8A7C,0x8A7D,0x8A7E,0x8A7F,/* 0x98-0x9F */
+	0x8A80,0x6D74,0x5BD3,0x88D5,0x9884,0x8C6B,0x9A6D,0x9E33,/* 0xA0-0xA7 */
+	0x6E0A,0x51A4,0x5143,0x57A3,0x8881,0x539F,0x63F4,0x8F95,/* 0xA8-0xAF */
+	0x56ED,0x5458,0x5706,0x733F,0x6E90,0x7F18,0x8FDC,0x82D1,/* 0xB0-0xB7 */
+	0x613F,0x6028,0x9662,0x66F0,0x7EA6,0x8D8A,0x8DC3,0x94A5,/* 0xB8-0xBF */
+	0x5CB3,0x7CA4,0x6708,0x60A6,0x9605,0x8018,0x4E91,0x90E7,/* 0xC0-0xC7 */
+	0x5300,0x9668,0x5141,0x8FD0,0x8574,0x915D,0x6655,0x97F5,/* 0xC8-0xCF */
+	0x5B55,0x531D,0x7838,0x6742,0x683D,0x54C9,0x707E,0x5BB0,/* 0xD0-0xD7 */
+	0x8F7D,0x518D,0x5728,0x54B1,0x6512,0x6682,0x8D5E,0x8D43,/* 0xD8-0xDF */
+	0x810F,0x846C,0x906D,0x7CDF,0x51FF,0x85FB,0x67A3,0x65E9,/* 0xE0-0xE7 */
+	0x6FA1,0x86A4,0x8E81,0x566A,0x9020,0x7682,0x7076,0x71E5,/* 0xE8-0xEF */
+	0x8D23,0x62E9,0x5219,0x6CFD,0x8D3C,0x600E,0x589E,0x618E,/* 0xF0-0xF7 */
+	0x66FE,0x8D60,0x624E,0x55B3,0x6E23,0x672D,0x8F67,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D5[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8A81,0x8A82,0x8A83,0x8A84,0x8A85,0x8A86,0x8A87,0x8A88,/* 0x40-0x47 */
+	0x8A8B,0x8A8C,0x8A8D,0x8A8E,0x8A8F,0x8A90,0x8A91,0x8A92,/* 0x48-0x4F */
+	0x8A94,0x8A95,0x8A96,0x8A97,0x8A98,0x8A99,0x8A9A,0x8A9B,/* 0x50-0x57 */
+	0x8A9C,0x8A9D,0x8A9E,0x8A9F,0x8AA0,0x8AA1,0x8AA2,0x8AA3,/* 0x58-0x5F */
+	0x8AA4,0x8AA5,0x8AA6,0x8AA7,0x8AA8,0x8AA9,0xF9A1,0x8AAB,/* 0x60-0x67 */
+	0x8AAC,0x8AAD,0x8AAE,0x8AAF,0x8AB0,0x8AB1,0x8AB2,0x8AB3,/* 0x68-0x6F */
+	0x8AB4,0x8AB5,0x8AB6,0x8AB7,0x8AB8,0x8AB9,0x8ABA,0x8ABB,/* 0x70-0x77 */
+	0x8ABC,0x8ABD,0x8ABE,0x8ABF,0x8AC0,0x8AC1,0x8AC2,0x0000,/* 0x78-0x7F */
+	
+	0x8AC3,0x8AC4,0x8AC5,0x8AC6,0x8AC7,0x8AC8,0x8AC9,0x8ACA,/* 0x80-0x87 */
+	0x8ACB,0x8ACC,0x8ACD,0x8ACE,0x8ACF,0x8AD0,0x8AD1,0xF97D,/* 0x88-0x8F */
+	0x8AD3,0x8AD4,0x8AD5,0xF941,0x8AD7,0x8AD8,0x8AD9,0x8ADA,/* 0x90-0x97 */
+	0x8ADB,0x8ADC,0x8ADD,0x8ADE,0x8ADF,0x8AE0,0x8AE1,0x8AE2,/* 0x98-0x9F */
+	0x8AE3,0x94E1,0x95F8,0x7728,0x6805,0x69A8,0x548B,0x4E4D,/* 0xA0-0xA7 */
+	0x70B8,0x8BC8,0x6458,0x658B,0xFA04,0x7A84,0x503A,0x5BE8,/* 0xA8-0xAF */
+	0x77BB,0x6BE1,0x8A79,0x7C98,0x6CBE,0x76CF,0x65A9,0x8F97,/* 0xB0-0xB7 */
+	0x5D2D,0x5C55,0x8638,0x6808,0x5360,0x6218,0x7AD9,0x6E5B,/* 0xB8-0xBF */
+	0x7EFD,0x6A1F,0x7AE0,0x5F70,0x6F33,0x5F20,0x638C,0x6DA8,/* 0xC0-0xC7 */
+	0x6756,0x4E08,0x5E10,0x8D26,0x4ED7,0x80C0,0x7634,0x969C,/* 0xC8-0xCF */
+	0x62DB,0x662D,0x627E,0x6CBC,0x8D75,0x7167,0x7F69,0x5146,/* 0xD0-0xD7 */
+	0x8087,0x53EC,0x906E,0x6298,0x54F2,0x86F0,0x8F99,0x8005,/* 0xD8-0xDF */
+	0x9517,0x8517,0x8FD9,0x6D59,0x73CD,0x659F,0x771F,0x7504,/* 0xE0-0xE7 */
+	0x7827,0x81FB,0x8D1E,0x9488,0x4FA6,0x6795,0x75B9,0x8BCA,/* 0xE8-0xEF */
+	0x9707,0x632F,0x9547,0x9635,0x84B8,0x6323,0x7741,0x5F81,/* 0xF0-0xF7 */
+	0x72F0,0x4E89,0x6014,0x6574,0x62EF,0x6B63,0x653F,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D6[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8AE4,0x8AE5,0x8AE6,0x8AE7,0x8AE8,0x8AE9,0x8AEA,0x8AEB,/* 0x40-0x47 */
+	0x8AEC,0x8AED,0x8AEE,0x8AEF,0x8AF0,0x8AF1,0x8AF2,0x8AF3,/* 0x48-0x4F */
+	0x8AF4,0x8AF5,0x8AF6,0x8AF7,0xFA22,0x8AF9,0x8AFA,0x8AFB,/* 0x50-0x57 */
+	0x8AFC,0x8AFD,0xF95D,0x8AFF,0x8B00,0x8B01,0x8B02,0x8B03,/* 0x58-0x5F */
+	0x8B04,0x8B05,0x8B06,0x8B08,0x8B09,0x8B0A,0x8B0B,0x8B0C,/* 0x60-0x67 */
+	0x8B0D,0x8B0E,0x8B0F,0x8B10,0x8B11,0x8B12,0x8B13,0x8B14,/* 0x68-0x6F */
+	0x8B15,0x8B16,0x8B17,0x8B18,0x8B19,0x8B1A,0x8B1B,0x8B1C,/* 0x70-0x77 */
+	0x8B1D,0x8B1E,0x8B1F,0x8B20,0x8B21,0x8B22,0x8B23,0x0000,/* 0x78-0x7F */
+	
+	0x8B24,0x8B25,0x8B27,0x8B28,0x8B29,0x8B2A,0x8B2B,0x8B2C,/* 0x80-0x87 */
+	0x8B2D,0x8B2E,0x8B2F,0x8B30,0x8B31,0x8B32,0x8B33,0x8B34,/* 0x88-0x8F */
+	0x8B35,0x8B36,0x8B37,0x8B38,0x8B39,0x8B3A,0x8B3B,0x8B3C,/* 0x90-0x97 */
+	0x8B3D,0x8B3E,0x8B3F,0x8B40,0x8B41,0x8B42,0x8B43,0x8B44,/* 0x98-0x9F */
+	0x8B45,0x5E27,0x75C7,0x90D1,0x8BC1,0x829D,0x679D,0x652F,/* 0xA0-0xA7 */
+	0x5431,0x8718,0x77E5,0x80A2,0x8102,0x6C41,0x4E4B,0x7EC7,/* 0xA8-0xAF */
+	0x804C,0x76F4,0x690D,0x6B96,0x6267,0x503C,0x4F84,0x5740,/* 0xB0-0xB7 */
+	0x6307,0x6B62,0x8DBE,0x53EA,0x65E8,0x7EB8,0x5FD7,0x631A,/* 0xB8-0xBF */
+	0x63B7,0x81F3,0x81F4,0x7F6E,0x5E1C,0x5CD9,0x5236,0x667A,/* 0xC0-0xC7 */
+	0x79E9,0x7A1A,0x8D28,0xF9FB,0x75D4,0x6EDE,0x6CBB,0x7A92,/* 0xC8-0xCF */
+	0x4E2D,0x76C5,0x5FE0,0x949F,0x8877,0x7EC8,0x79CD,0x80BF,/* 0xD0-0xD7 */
+	0x91CD,0x4EF2,0x4F17,0x821F,0x5468,0x5DDE,0x6D32,0x8BCC,/* 0xD8-0xDF */
+	0x7CA5,0x8F74,0x8098,0x5E1A,0x5492,0x76B1,0x5B99,0x663C,/* 0xE0-0xE7 */
+	0x9AA4,0x73E0,0x682A,0x86DB,0x6731,0x732A,0x8BF8,0x8BDB,/* 0xE8-0xEF */
+	0x9010,0x7AF9,0x70DB,0x716E,0x62C4,0x77A9,0x5631,0x4E3B,/* 0xF0-0xF7 */
+	0x8457,0x67F1,0x52A9,0x86C0,0x8D2E,0x94F8,0x7B51,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D7[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8B46,0x8B47,0x8B48,0x8B49,0x8B4A,0x8B4B,0x8B4C,0x8B4D,/* 0x40-0x47 */
+	0x8B4E,0x8B4F,0x8B50,0x8B51,0x8B52,0x8B53,0x8B54,0x8B55,/* 0x48-0x4F */
+	0x8B56,0x8B57,0xF9FC,0x8B59,0x8B5A,0x8B5B,0x8B5C,0x8B5D,/* 0x50-0x57 */
+	0x8B5E,0x8B5F,0x8B60,0x8B61,0x8B62,0x8B63,0x8B64,0x8B65,/* 0x58-0x5F */
+	0x8B67,0x8B68,0x8B69,0x8B6A,0x8B6B,0x8B6D,0x8B6E,0x8B6F,/* 0x60-0x67 */
+	0x8B70,0x8B71,0x8B72,0x8B73,0x8B74,0x8B75,0x8B76,0x8B77,/* 0x68-0x6F */
+	0x8B78,0x8B79,0x8B7A,0x8B7B,0x8B7C,0x8B7D,0x8B7E,0x8B7F,/* 0x70-0x77 */
+	0xF95A,0x8B81,0x8B82,0x8B83,0x8B84,0x8B85,0x8B86,0x0000,/* 0x78-0x7F */
+	
+	0x8B87,0x8B88,0x8B89,0x8B8A,0x8B8B,0x8B8C,0x8B8D,0x8B8E,/* 0x80-0x87 */
+	0x8B8F,0x8B90,0x8B91,0x8B92,0x8B93,0x8B94,0x8B95,0x8B96,/* 0x88-0x8F */
+	0x8B97,0x8B98,0x8B99,0x8B9A,0x8B9B,0x8B9C,0x8B9D,0x8B9E,/* 0x90-0x97 */
+	0x8B9F,0x8BAC,0x8BB1,0x8BBB,0x8BC7,0x8BD0,0x8BEA,0x8C09,/* 0x98-0x9F */
+	0x8C1E,0x4F4F,0x6CE8,0x795D,0x9A7B,0x6293,0x722A,0x62FD,/* 0xA0-0xA7 */
+	0x4E13,0x7816,0x8F6C,0x64B0,0x8D5A,0x7BC6,0x6869,0x5E84,/* 0xA8-0xAF */
+	0x88C5,0x5986,0x649E,0x58EE,0x72B6,0x690E,0x9525,0x8FFD,/* 0xB0-0xB7 */
+	0x8D58,0x5760,0x7F00,0x8C06,0x51C6,0x6349,0x62D9,0x5353,/* 0xB8-0xBF */
+	0x684C,0x7422,0x8301,0x914C,0x5544,0x7740,0x707C,0x6D4A,/* 0xC0-0xC7 */
+	0x5179,0x54A8,0x8D44,0x59FF,0x6ECB,0x6DC4,0x5B5C,0x7D2B,/* 0xC8-0xCF */
+	0x4ED4,0x7C7D,0x6ED3,0x5B50,0x81EA,0x6E0D,0x5B57,0x9B03,/* 0xD0-0xD7 */
+	0x68D5,0x8E2A,0x5B97,0x7EFC,0x603B,0x7EB5,0x90B9,0x8D70,/* 0xD8-0xDF */
+	0x594F,0x63CD,0x79DF,0x8DB3,0x5352,0x65CF,0x7956,0x8BC5,/* 0xE0-0xE7 */
+	0x963B,0x7EC4,0x94BB,0x7E82,0x5634,0x9189,0x6700,0x7F6A,/* 0xE8-0xEF */
+	0x5C0A,0x9075,0x6628,0x5DE6,0x4F50,0x67DE,0x505A,0x4F5C,/* 0xF0-0xF7 */
+	0x5750,0x5EA7,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D8[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8C38,0x8C39,0x8C3A,0x8C3B,0x8C3C,0x8C3D,0x8C3E,0x8C3F,/* 0x40-0x47 */
+	0x8C40,0x8C42,0x8C43,0x8C44,0x8C45,0xF900,0x8C4A,0x8C4B,/* 0x48-0x4F */
+	0x8C4D,0x8C4E,0x8C4F,0x8C50,0x8C51,0x8C52,0x8C53,0x8C54,/* 0x50-0x57 */
+	0x8C56,0x8C57,0x8C58,0x8C59,0x8C5B,0x8C5C,0x8C5D,0x8C5E,/* 0x58-0x5F */
+	0x8C5F,0x8C60,0x8C63,0x8C64,0x8C65,0x8C66,0x8C67,0x8C68,/* 0x60-0x67 */
+	0x8C69,0xFA16,0x8C6D,0x8C6E,0x8C6F,0x8C70,0x8C71,0x8C72,/* 0x68-0x6F */
+	0x8C74,0x8C75,0x8C76,0x8C77,0x8C7B,0x8C7C,0x8C7D,0x8C7E,/* 0x70-0x77 */
+	0x8C7F,0x8C80,0x8C81,0x8C83,0x8C84,0x8C86,0x8C87,0x0000,/* 0x78-0x7F */
+	
+	0x8C88,0x8C8B,0x8C8D,0x8C8E,0x8C8F,0x8C90,0x8C91,0x8C92,/* 0x80-0x87 */
+	0x8C93,0x8C95,0x8C96,0x8C97,0x8C99,0x8C9A,0x8C9B,0x8C9C,/* 0x88-0x8F */
+	0x8C9D,0x8C9E,0x8C9F,0x8CA0,0x8CA1,0x8CA2,0x8CA3,0x8CA4,/* 0x90-0x97 */
+	0x8CA5,0x8CA6,0x8CA7,0x8CA8,0x8CA9,0x8CAA,0x8CAB,0x8CAC,/* 0x98-0x9F */
+	0x8CAD,0x4E8D,0x4E0C,0x5140,0x4E10,0x5EFF,0x5345,0x4E15,/* 0xA0-0xA7 */
+	0x4E98,0x4E1E,0x9B32,0x5B6C,0x5669,0x4E28,0x79BA,0x4E3F,/* 0xA8-0xAF */
+	0x5315,0x4E47,0x592D,0x723B,0x536E,0x6C10,0x56DF,0x80E4,/* 0xB0-0xB7 */
+	0x9997,0x6BD3,0x777E,0x9F17,0x4E36,0x4E9F,0x9F10,0x4E5C,/* 0xB8-0xBF */
+	0x4E69,0x4E93,0x8288,0x5B5B,0x556C,0x560F,0x4EC4,0x538D,/* 0xC0-0xC7 */
+	0x539D,0x53A3,0x53A5,0x53AE,0x9765,0x8D5D,0x531A,0x53F5,/* 0xC8-0xCF */
+	0x5326,0x532E,0x533E,0x8D5C,0x5366,0x5363,0x5202,0x5208,/* 0xD0-0xD7 */
+	0x520E,0x522D,0x5233,0x523F,0x5240,0x524C,0x525E,0x5261,/* 0xD8-0xDF */
+	0x525C,0x84AF,0x527D,0x5282,0x5281,0x5290,0x5293,0x5182,/* 0xE0-0xE7 */
+	0x7F54,0x4EBB,0x4EC3,0x4EC9,0x4EC2,0x4EE8,0x4EE1,0x4EEB,/* 0xE8-0xEF */
+	0x4EDE,0x4F1B,0x4EF3,0x4F22,0x4F64,0x4EF5,0x4F25,0x4F27,/* 0xF0-0xF7 */
+	0x4F09,0x4F2B,0x4F5E,0x4F67,0x6538,0x4F5A,0x4F5D,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D9[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8CAE,0x8CAF,0x8CB0,0x8CB1,0x8CB2,0x8CB3,0x8CB4,0x8CB5,/* 0x40-0x47 */
+	0x8CB6,0x8CB7,0x8CB8,0x8CB9,0x8CBA,0x8CBB,0x8CBC,0x8CBD,/* 0x48-0x4F */
+	0x8CBE,0x8CBF,0x8CC0,0x8CC1,0xF948,0x8CC3,0x8CC4,0x8CC5,/* 0x50-0x57 */
+	0x8CC6,0x8CC7,0xF903,0x8CC9,0x8CCA,0x8CCB,0x8CCC,0x8CCD,/* 0x58-0x5F */
+	0x8CCE,0x8CCF,0x8CD0,0x8CD1,0x8CD2,0x8CD3,0x8CD4,0x8CD5,/* 0x60-0x67 */
+	0x8CD6,0x8CD7,0x8CD8,0x8CD9,0x8CDA,0x8CDB,0x8CDC,0x8CDD,/* 0x68-0x6F */
+	0x8CDE,0x8CDF,0x8CE0,0x8CE1,0x8CE2,0x8CE3,0x8CE4,0x8CE5,/* 0x70-0x77 */
+	0x8CE6,0x8CE7,0x8CE8,0x8CE9,0x8CEA,0x8CEB,0x8CEC,0x0000,/* 0x78-0x7F */
+	
+	0x8CED,0x8CEE,0x8CEF,0x8CF0,0x8CF1,0x8CF2,0x8CF3,0x8CF4,/* 0x80-0x87 */
+	0x8CF5,0x8CF6,0x8CF7,0x8CF8,0x8CF9,0x8CFA,0x8CFB,0x8CFC,/* 0x88-0x8F */
+	0x8CFD,0x8CFE,0x8CFF,0x8D00,0x8D01,0x8D02,0x8D03,0x8D04,/* 0x90-0x97 */
+	0x8D05,0x8D06,0x8D07,0x8D08,0x8D09,0x8D0A,0x8D0B,0x8D0C,/* 0x98-0x9F */
+	0x8D0D,0x4F5F,0x4F57,0x4F32,0x4F3D,0x4F76,0x4F74,0x4F91,/* 0xA0-0xA7 */
+	0x4F89,0x4F83,0x4F8F,0x4F7E,0x4F7B,0x4FAA,0x4F7C,0x4FAC,/* 0xA8-0xAF */
+	0x4F94,0x4FE6,0x4FE8,0x4FEA,0x4FC5,0x4FDA,0x4FE3,0x4FDC,/* 0xB0-0xB7 */
+	0x4FD1,0x4FDF,0x4FF8,0x5029,0x504C,0x4FF3,0x502C,0x500F,/* 0xB8-0xBF */
+	0x502E,0x502D,0x4FFE,0x501C,0x500C,0x5025,0x5028,0x507E,/* 0xC0-0xC7 */
+	0x5043,0x5055,0x5048,0x504E,0x506C,0x507B,0x50A5,0x50A7,/* 0xC8-0xCF */
+	0x50A9,0x50BA,0x50D6,0x5106,0x50ED,0x50EC,0x50E6,0x50EE,/* 0xD0-0xD7 */
+	0x5107,0x510B,0x4EDD,0x6C3D,0x4F58,0x4F65,0x4FCE,0x9FA0,/* 0xD8-0xDF */
+	0x6C46,0x7C74,0x516E,0x5DFD,0x9EC9,0x9998,0x5181,0x5914,/* 0xE0-0xE7 */
+	0x52F9,0x530D,0x8A07,0x5310,0x51EB,0x5919,0x5155,0x4EA0,/* 0xE8-0xEF */
+	0x5156,0x4EB3,0x886E,0x88A4,0x4EB5,0x8114,0x88D2,0x7980,/* 0xF0-0xF7 */
+	0x5B34,0x8803,0x7FB8,0x51AB,0x51B1,0x51BD,0x51BC,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_DA[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8D0E,0x8D0F,0x8D10,0x8D11,0x8D12,0x8D13,0x8D14,0x8D15,/* 0x40-0x47 */
+	0x8D16,0x8D17,0x8D18,0x8D19,0x8D1A,0x8D1B,0x8D1C,0x8D20,/* 0x48-0x4F */
+	0x8D51,0x8D52,0x8D57,0x8D5F,0x8D65,0x8D68,0x8D69,0x8D6A,/* 0x50-0x57 */
+	0x8D6C,0x8D6E,0x8D6F,0x8D71,0x8D72,0x8D78,0x8D79,0x8D7A,/* 0x58-0x5F */
+	0x8D7B,0x8D7C,0x8D7D,0x8D7E,0x8D7F,0x8D80,0x8D82,0x8D83,/* 0x60-0x67 */
+	0x8D86,0x8D87,0x8D88,0x8D89,0x8D8C,0x8D8D,0x8D8E,0x8D8F,/* 0x68-0x6F */
+	0x8D90,0x8D92,0x8D93,0x8D95,0x8D96,0x8D97,0x8D98,0x8D99,/* 0x70-0x77 */
+	0x8D9A,0x8D9B,0x8D9C,0x8D9D,0x8D9E,0x8DA0,0x8DA1,0x0000,/* 0x78-0x7F */
+	
+	0x8DA2,0x8DA4,0x8DA5,0x8DA6,0x8DA7,0x8DA8,0x8DA9,0x8DAA,/* 0x80-0x87 */
+	0x8DAB,0x8DAC,0x8DAD,0x8DAE,0x8DAF,0x8DB0,0x8DB2,0x8DB6,/* 0x88-0x8F */
+	0x8DB7,0x8DB9,0x8DBB,0x8DBD,0x8DC0,0x8DC1,0x8DC2,0x8DC5,/* 0x90-0x97 */
+	0x8DC7,0x8DC8,0x8DC9,0x8DCA,0x8DCD,0x8DD0,0x8DD2,0x8DD3,/* 0x98-0x9F */
+	0x8DD4,0x51C7,0x5196,0x51A2,0x51A5,0x8BA0,0x8BA6,0x8BA7,/* 0xA0-0xA7 */
+	0x8BAA,0x8BB4,0x8BB5,0x8BB7,0x8BC2,0x8BC3,0x8BCB,0x8BCF,/* 0xA8-0xAF */
+	0x8BCE,0x8BD2,0x8BD3,0x8BD4,0x8BD6,0x8BD8,0x8BD9,0x8BDC,/* 0xB0-0xB7 */
+	0x8BDF,0x8BE0,0x8BE4,0x8BE8,0x8BE9,0x8BEE,0x8BF0,0x8BF3,/* 0xB8-0xBF */
+	0x8BF6,0x8BF9,0x8BFC,0x8BFF,0x8C00,0x8C02,0x8C04,0x8C07,/* 0xC0-0xC7 */
+	0x8C0C,0x8C0F,0x8C11,0x8C12,0x8C14,0x8C15,0x8C16,0x8C19,/* 0xC8-0xCF */
+	0x8C1B,0x8C18,0x8C1D,0x8C1F,0x8C20,0x8C21,0x8C25,0x8C27,/* 0xD0-0xD7 */
+	0x8C2A,0x8C2B,0x8C2E,0x8C2F,0x8C32,0x8C33,0x8C35,0x8C36,/* 0xD8-0xDF */
+	0x5369,0x537A,0x961D,0x9622,0x9621,0x9631,0x962A,0x963D,/* 0xE0-0xE7 */
+	0x963C,0x9642,0x9649,0x9654,0x965F,0x9667,0x966C,0x9672,/* 0xE8-0xEF */
+	0x9674,0x9688,0x968D,0x9697,0x96B0,0x9097,0x909B,0x909D,/* 0xF0-0xF7 */
+	0x9099,0x90AC,0x90A1,0x90B4,0x90B3,0x90B6,0x90BA,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_DB[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8DD5,0x8DD8,0x8DD9,0x8DDC,0x8DE0,0x8DE1,0x8DE2,0x8DE5,/* 0x40-0x47 */
+	0x8DE6,0x8DE7,0x8DE9,0x8DED,0x8DEE,0x8DF0,0x8DF1,0x8DF2,/* 0x48-0x4F */
+	0x8DF4,0x8DF6,0x8DFC,0x8DFE,0x8DFF,0x8E00,0x8E01,0x8E02,/* 0x50-0x57 */
+	0x8E03,0x8E04,0x8E06,0x8E07,0x8E08,0x8E0B,0x8E0D,0x8E0E,/* 0x58-0x5F */
+	0x8E10,0x8E11,0x8E12,0x8E13,0x8E15,0x8E16,0x8E17,0x8E18,/* 0x60-0x67 */
+	0x8E19,0x8E1A,0x8E1B,0x8E1C,0x8E20,0x8E21,0x8E24,0x8E25,/* 0x68-0x6F */
+	0x8E26,0x8E27,0x8E28,0x8E2B,0x8E2D,0x8E30,0x8E32,0x8E33,/* 0x70-0x77 */
+	0x8E34,0x8E36,0x8E37,0x8E38,0x8E3B,0x8E3C,0x8E3E,0x0000,/* 0x78-0x7F */
+	
+	0x8E3F,0x8E43,0x8E45,0x8E46,0x8E4C,0x8E4D,0x8E4E,0x8E4F,/* 0x80-0x87 */
+	0x8E50,0x8E53,0x8E54,0x8E55,0x8E56,0x8E57,0x8E58,0x8E5A,/* 0x88-0x8F */
+	0x8E5B,0x8E5C,0x8E5D,0x8E5E,0x8E5F,0x8E60,0x8E61,0x8E62,/* 0x90-0x97 */
+	0x8E63,0x8E64,0x8E65,0x8E67,0x8E68,0x8E6A,0x8E6B,0x8E6E,/* 0x98-0x9F */
+	0x8E71,0x90B8,0x90B0,0x90CF,0x90C5,0x90BE,0x90D0,0x90C4,/* 0xA0-0xA7 */
+	0x90C7,0x90D3,0x90E6,0x90E2,0x90DC,0x90D7,0x90DB,0x90EB,/* 0xA8-0xAF */
+	0x90EF,0x90FE,0x9104,0x9122,0x911E,0x9123,0x9131,0x912F,/* 0xB0-0xB7 */
+	0x9139,0x9143,0x9146,0x520D,0x5942,0x52A2,0x52AC,0x52AD,/* 0xB8-0xBF */
+	0x52BE,0x54FF,0x52D0,0x52D6,0x52F0,0x53DF,0x71EE,0x77CD,/* 0xC0-0xC7 */
+	0x5EF4,0x51F5,0x51FC,0x9B2F,0x53B6,0x5F01,0x755A,0x5DEF,/* 0xC8-0xCF */
+	0x574C,0x57A9,0x57A1,0x587E,0x58BC,0x58C5,0x58D1,0x5729,/* 0xD0-0xD7 */
+	0x572C,0x572A,0x5733,0x5739,0x572E,0x572F,0x575C,0x573B,/* 0xD8-0xDF */
+	0x5742,0x5769,0x5785,0x576B,0x5786,0x577C,0x577B,0x5768,/* 0xE0-0xE7 */
+	0x576D,0x5776,0x5773,0x57AD,0x57A4,0x578C,0x57B2,0x57CF,/* 0xE8-0xEF */
+	0x57A7,0x57B4,0x5793,0x57A0,0x57D5,0x57D8,0x57DA,0x57D9,/* 0xF0-0xF7 */
+	0x57D2,0x57B8,0x57F4,0x57EF,0x57F8,0x57E4,0x57DD,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_DC[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8E73,0x8E75,0x8E77,0x8E78,0x8E79,0x8E7A,0x8E7B,0x8E7D,/* 0x40-0x47 */
+	0x8E7E,0x8E80,0x8E82,0x8E83,0x8E84,0x8E86,0x8E88,0x8E89,/* 0x48-0x4F */
+	0x8E8A,0x8E8B,0x8E8C,0x8E8D,0x8E8E,0x8E91,0x8E92,0x8E93,/* 0x50-0x57 */
+	0x8E95,0x8E96,0x8E97,0x8E98,0x8E99,0x8E9A,0x8E9B,0x8E9D,/* 0x58-0x5F */
+	0x8E9F,0x8EA0,0x8EA1,0x8EA2,0x8EA3,0x8EA4,0x8EA5,0x8EA6,/* 0x60-0x67 */
+	0x8EA7,0x8EA8,0x8EA9,0x8EAA,0x8EAD,0x8EAE,0x8EB0,0x8EB1,/* 0x68-0x6F */
+	0x8EB3,0x8EB4,0x8EB5,0x8EB6,0x8EB7,0x8EB8,0x8EB9,0x8EBB,/* 0x70-0x77 */
+	0x8EBC,0x8EBD,0x8EBE,0x8EBF,0x8EC0,0x8EC1,0x8EC2,0x0000,/* 0x78-0x7F */
+	
+	0x8EC3,0x8EC4,0x8EC5,0x8EC6,0x8EC7,0x8EC8,0x8EC9,0xF902,/* 0x80-0x87 */
+	0x8ECB,0x8ECC,0x8ECD,0x8ECF,0x8ED0,0x8ED1,0x8ED2,0x8ED3,/* 0x88-0x8F */
+	0x8ED4,0x8ED5,0x8ED6,0x8ED7,0x8ED8,0x8ED9,0x8EDA,0x8EDB,/* 0x90-0x97 */
+	0x8EDC,0x8EDD,0x8EDE,0x8EDF,0x8EE0,0x8EE1,0x8EE2,0x8EE3,/* 0x98-0x9F */
+	0x8EE4,0x580B,0x580D,0x57FD,0x57ED,0x5800,0x581E,0x5819,/* 0xA0-0xA7 */
+	0x5844,0x5820,0x5865,0x586C,0x5881,0x5889,0x589A,0x5880,/* 0xA8-0xAF */
+	0x99A8,0x9F19,0x61FF,0x8279,0x827D,0x827F,0x828F,0x828A,/* 0xB0-0xB7 */
+	0x82A8,0x8284,0x828E,0x8291,0x8297,0x8299,0x82AB,0x82B8,/* 0xB8-0xBF */
+	0x82BE,0x82B0,0x82C8,0x82CA,0x82E3,0x8298,0x82B7,0x82AE,/* 0xC0-0xC7 */
+	0x82CB,0x82CC,0x82C1,0x82A9,0x82B4,0x82A1,0x82AA,0x829F,/* 0xC8-0xCF */
+	0x82C4,0x82CE,0x82A4,0x82E1,0x8309,0x82F7,0x82E4,0x830F,/* 0xD0-0xD7 */
+	0x8307,0x82DC,0x82F4,0x82D2,0x82D8,0x830C,0x82FB,0x82D3,/* 0xD8-0xDF */
+	0x8311,0x831A,0x8306,0x8314,0x8315,0x82E0,0x82D5,0x831C,/* 0xE0-0xE7 */
+	0x8351,0x835B,0x835C,0x8308,0x8392,0x833C,0x8334,0x8331,/* 0xE8-0xEF */
+	0x839B,0x835E,0x832F,0x834F,0x8347,0x8343,0x835F,0x8340,/* 0xF0-0xF7 */
+	0x8317,0x8360,0x832D,0x833A,0x8333,0x8366,0x8365,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_DD[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8EE5,0x8EE6,0x8EE7,0x8EE8,0x8EE9,0x8EEA,0x8EEB,0x8EEC,/* 0x40-0x47 */
+	0x8EED,0x8EEE,0x8EEF,0x8EF0,0x8EF1,0x8EF2,0x8EF3,0x8EF4,/* 0x48-0x4F */
+	0x8EF5,0x8EF6,0x8EF7,0x8EF8,0x8EF9,0x8EFA,0x8EFB,0x8EFC,/* 0x50-0x57 */
+	0x8EFD,0x8EFE,0x8EFF,0x8F00,0x8F01,0x8F02,0x8F03,0x8F04,/* 0x58-0x5F */
+	0x8F05,0x8F06,0x8F07,0x8F08,0x8F09,0x8F0A,0x8F0B,0x8F0C,/* 0x60-0x67 */
+	0x8F0D,0x8F0E,0x8F0F,0x8F10,0x8F11,0x8F12,0x8F13,0x8F14,/* 0x68-0x6F */
+	0x8F15,0x8F16,0x8F17,0x8F18,0x8F19,0x8F1A,0x8F1B,0x8F1C,/* 0x70-0x77 */
+	0x8F1D,0x8F1E,0x8F1F,0x8F20,0x8F21,0x8F22,0x8F23,0x0000,/* 0x78-0x7F */
+	
+	0x8F24,0x8F25,0xF998,0x8F27,0x8F28,0x8F29,0xF9D7,0x8F2B,/* 0x80-0x87 */
+	0x8F2C,0x8F2D,0x8F2E,0x8F2F,0x8F30,0x8F31,0x8F32,0x8F33,/* 0x88-0x8F */
+	0x8F34,0x8F35,0x8F36,0x8F37,0x8F38,0x8F39,0x8F3A,0xFA07,/* 0x90-0x97 */
+	0x8F3C,0x8F3D,0x8F3E,0x8F3F,0x8F40,0x8F41,0x8F42,0x8F43,/* 0x98-0x9F */
+	0x8F44,0x8368,0x831B,0x8369,0x836C,0x836A,0x836D,0x836E,/* 0xA0-0xA7 */
+	0x83B0,0x8378,0x83B3,0x83B4,0x83A0,0x83AA,0x8393,0x839C,/* 0xA8-0xAF */
+	0x8385,0x837C,0x83B6,0x83A9,0x837D,0x83B8,0x837B,0x8398,/* 0xB0-0xB7 */
+	0x839E,0x83A8,0x83BA,0x83BC,0x83C1,0x8401,0x83E5,0x83D8,/* 0xB8-0xBF */
+	0x5807,0x8418,0x840B,0x83DD,0x83FD,0x83D6,0x841C,0x8438,/* 0xC0-0xC7 */
+	0x8411,0x8406,0x83D4,0x83DF,0x840F,0x8403,0x83F8,0x83F9,/* 0xC8-0xCF */
+	0x83EA,0x83C5,0x83C0,0x8426,0x83F0,0x83E1,0x845C,0x8451,/* 0xD0-0xD7 */
+	0x845A,0x8459,0x8473,0x8487,0x8488,0x847A,0x8489,0x8478,/* 0xD8-0xDF */
+	0x843C,0x8446,0x8469,0x8476,0x848C,0x848E,0x8431,0x846D,/* 0xE0-0xE7 */
+	0x84C1,0x84CD,0x84D0,0x84E6,0x84BD,0x84D3,0x84CA,0x84BF,/* 0xE8-0xEF */
+	0x84BA,0x84E0,0x84A1,0x84B9,0x84B4,0x8497,0x84E5,0x84E3,/* 0xF0-0xF7 */
+	0x850C,0x750D,0x8538,0x84F0,0x8539,0x851F,0x853A,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_DE[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8F45,0x8F46,0x8F47,0x8F48,0x8F49,0x8F4A,0x8F4B,0x8F4C,/* 0x40-0x47 */
+	0x8F4D,0x8F4E,0x8F4F,0x8F50,0x8F51,0x8F52,0x8F53,0x8F54,/* 0x48-0x4F */
+	0x8F55,0x8F56,0x8F57,0x8F58,0x8F59,0x8F5A,0x8F5B,0x8F5C,/* 0x50-0x57 */
+	0x8F5D,0x8F5E,0x8F5F,0x8F60,0x8F61,0xF98D,0x8F63,0x8F64,/* 0x58-0x5F */
+	0x8F65,0x8F6A,0x8F80,0x8F8C,0x8F92,0x8F9D,0x8FA0,0x8FA1,/* 0x60-0x67 */
+	0x8FA2,0x8FA4,0x8FA5,0x8FA6,0x8FA7,0x8FAA,0x8FAC,0x8FAD,/* 0x68-0x6F */
+	0x8FAE,0x8FAF,0x8FB2,0x8FB3,0x8FB4,0x8FB5,0x8FB7,0x8FB8,/* 0x70-0x77 */
+	0x8FBA,0x8FBB,0x8FBC,0x8FBF,0x8FC0,0x8FC3,0x8FC6,0x0000,/* 0x78-0x7F */
+	
+	0x8FC9,0x8FCA,0x8FCB,0x8FCC,0x8FCD,0x8FCF,0x8FD2,0x8FD6,/* 0x80-0x87 */
+	0x8FD7,0x8FDA,0x8FE0,0x8FE1,0x8FE3,0x8FE7,0x8FEC,0x8FEF,/* 0x88-0x8F */
+	0x8FF1,0x8FF2,0x8FF4,0x8FF5,0x8FF6,0x8FFA,0x8FFB,0x8FFC,/* 0x90-0x97 */
+	0x8FFE,0x8FFF,0x9007,0x9008,0x900C,0x900E,0x9013,0x9015,/* 0x98-0x9F */
+	0x9018,0x8556,0x853B,0x84FF,0xF9C2,0x8559,0x8548,0x8568,/* 0xA0-0xA7 */
+	0x8564,0x855E,0x857A,0x77A2,0x8543,0x8572,0x857B,0x85A4,/* 0xA8-0xAF */
+	0x85A8,0x8587,0x858F,0x8579,0x85AE,0x859C,0x8585,0x85B9,/* 0xB0-0xB7 */
+	0x85B7,0x85B0,0x85D3,0x85C1,0x85DC,0x85FF,0x8627,0x8605,/* 0xB8-0xBF */
+	0x8629,0x8616,0x863C,0x5EFE,0x5F08,0x593C,0x5941,0x8037,/* 0xC0-0xC7 */
+	0x5955,0x595A,0x5958,0x530F,0x5C22,0x5C25,0x5C2C,0x5C34,/* 0xC8-0xCF */
+	0x624C,0x626A,0x629F,0x62BB,0x62CA,0x62DA,0x62D7,0x62EE,/* 0xD0-0xD7 */
+	0x6322,0x62F6,0x6339,0x634B,0x6343,0x63AD,0x63F6,0x6371,/* 0xD8-0xDF */
+	0x637A,0x638E,0x63B4,0x636D,0x63AC,0x638A,0x6369,0x63AE,/* 0xE0-0xE7 */
+	0x63BC,0x63F2,0x63F8,0x63E0,0x63FF,0x63C4,0x63DE,0x63CE,/* 0xE8-0xEF */
+	0x6452,0x63C6,0x63BE,0x6445,0x6441,0x640B,0x641B,0x6420,/* 0xF0-0xF7 */
+	0x640C,0x6426,0x6421,0x645E,0x6484,0x646D,0x6496,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_DF[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x9019,0x901C,0xF99A,0x9024,0x9025,0x9027,0x9028,0x9029,/* 0x40-0x47 */
+	0x902A,0x902B,0x902C,0x9030,0x9031,0x9032,0x9033,0x9034,/* 0x48-0x4F */
+	0x9037,0x9039,0x903A,0x903D,0x903F,0x9040,0x9043,0x9045,/* 0x50-0x57 */
+	0x9046,0x9048,0x9049,0x904A,0x904B,0x904C,0x904E,0x9054,/* 0x58-0x5F */
+	0x9055,0x9056,0x9059,0x905A,0x905C,0x905D,0x905E,0x905F,/* 0x60-0x67 */
+	0x9060,0x9061,0x9064,0x9066,0x9067,0x9069,0x906A,0x906B,/* 0x68-0x6F */
+	0x906C,0x906F,0x9070,0x9071,0x9072,0x9073,0x9076,0x9077,/* 0x70-0x77 */
+	0x9078,0x9079,0x907A,0x907B,0xF9C3,0x907E,0x9081,0x0000,/* 0x78-0x7F */
+	
+	0x9084,0x9085,0x9086,0x9087,0x9089,0x908A,0x908C,0x908D,/* 0x80-0x87 */
+	0x908E,0xF913,0x9090,0x9092,0x9094,0x9096,0x9098,0x909A,/* 0x88-0x8F */
+	0x909C,0x909E,0x909F,0x90A0,0x90A4,0x90A5,0x90A7,0x90A8,/* 0x90-0x97 */
+	0x90A9,0x90AB,0x90AD,0x90B2,0x90B7,0x90BC,0x90BD,0x90BF,/* 0x98-0x9F */
+	0x90C0,0x647A,0x64B7,0x64B8,0x6499,0x64BA,0x64C0,0x64D0,/* 0xA0-0xA7 */
+	0x64D7,0x64E4,0x64E2,0x6509,0x6525,0x652E,0x5F0B,0x5FD2,/* 0xA8-0xAF */
+	0x7519,0x5F11,0x535F,0x53F1,0x53FD,0x53E9,0x53E8,0x53FB,/* 0xB0-0xB7 */
+	0x5412,0x5416,0x5406,0x544B,0x5452,0x5453,0x5454,0x5456,/* 0xB8-0xBF */
+	0x5443,0x5421,0x5457,0x5459,0x5423,0x5432,0x5482,0x5494,/* 0xC0-0xC7 */
+	0x5477,0x5471,0x5464,0x549A,0x549B,0x5484,0x5476,0x5466,/* 0xC8-0xCF */
+	0x549D,0x54D0,0x54AD,0x54C2,0x54B4,0x54D2,0x54A7,0x54A6,/* 0xD0-0xD7 */
+	0x54D3,0x54D4,0x5472,0x54A3,0x54D5,0x54BB,0x54BF,0x54CC,/* 0xD8-0xDF */
+	0x54D9,0x54DA,0x54DC,0x54A9,0x54AA,0x54A4,0x54DD,0x54CF,/* 0xE0-0xE7 */
+	0x54DE,0x551B,0x54E7,0x5520,0x54FD,0x5514,0x54F3,0x5522,/* 0xE8-0xEF */
+	0x5523,0x550F,0x5511,0x5527,0x552A,0x5567,0x558F,0x55B5,/* 0xF0-0xF7 */
+	0x5549,0x556D,0x5541,0x5555,0x553F,0x5550,0x553C,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E0[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x90C2,0x90C3,0x90C6,0x90C8,0x90C9,0x90CB,0x90CC,0x90CD,/* 0x40-0x47 */
+	0x90D2,0x90D4,0x90D5,0x90D6,0x90D8,0x90D9,0x90DA,0x90DE,/* 0x48-0x4F */
+	0x90DF,0x90E0,0x90E3,0x90E4,0x90E5,0x90E9,0x90EA,0x90EC,/* 0x50-0x57 */
+	0x90EE,0x90F0,0x90F1,0x90F2,0x90F3,0x90F5,0x90F6,0x90F7,/* 0x58-0x5F */
+	0x90F9,0x90FA,0x90FB,0x90FC,0x90FF,0x9100,0x9101,0x9103,/* 0x60-0x67 */
+	0x9105,0x9106,0x9107,0x9108,0x9109,0x910A,0x910B,0x910C,/* 0x68-0x6F */
+	0x910D,0x910E,0x910F,0x9110,0x9111,0x9112,0x9113,0x9114,/* 0x70-0x77 */
+	0x9115,0x9116,0x9117,0x9118,0x911A,0x911B,0x911C,0x0000,/* 0x78-0x7F */
+	
+	0x911D,0x911F,0x9120,0x9121,0x9124,0x9125,0x9126,0x9127,/* 0x80-0x87 */
+	0x9128,0x9129,0x912A,0x912B,0x912C,0x912D,0x912E,0x9130,/* 0x88-0x8F */
+	0x9132,0x9133,0x9134,0x9135,0x9136,0x9137,0x9138,0x913A,/* 0x90-0x97 */
+	0x913B,0x913C,0x913D,0x913E,0x913F,0x9140,0x9141,0x9142,/* 0x98-0x9F */
+	0x9144,0x5537,0x5556,0x5575,0x5576,0x5577,0x5533,0x5530,/* 0xA0-0xA7 */
+	0x555C,0x558B,0x55D2,0x5583,0x55B1,0x55B9,0x5588,0x5581,/* 0xA8-0xAF */
+	0x559F,0x557E,0x55D6,0x5591,0x557B,0x55DF,0x55BD,0x55BE,/* 0xB0-0xB7 */
+	0x5594,0x5599,0x55EA,0x55F7,0x55C9,0x561F,0x55D1,0x55EB,/* 0xB8-0xBF */
+	0x55EC,0x55D4,0x55E6,0x55DD,0x55C4,0x55EF,0x55E5,0x55F2,/* 0xC0-0xC7 */
+	0x55F3,0x55CC,0x55CD,0x55E8,0x55F5,0x55E4,0x8F94,0x561E,/* 0xC8-0xCF */
+	0x5608,0x560C,0x5601,0x5624,0x5623,0x55FE,0x5600,0x5627,/* 0xD0-0xD7 */
+	0x562D,0x5658,0x5639,0x5657,0x562C,0x564D,0x5662,0x5659,/* 0xD8-0xDF */
+	0x565C,0x564C,0x5654,0x5686,0x5664,0x5671,0x566B,0x567B,/* 0xE0-0xE7 */
+	0x567C,0x5685,0x5693,0x56AF,0x56D4,0x56D7,0x56DD,0x56E1,/* 0xE8-0xEF */
+	0x56F5,0x56EB,0xF9A9,0x56FF,0x5704,0x570A,0x5709,0x571C,/* 0xF0-0xF7 */
+	0x5E0F,0x5E19,0x5E14,0x5E11,0x5E31,0x5E3B,0x5E3C,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E1[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x9145,0x9147,0x9148,0x9151,0x9153,0x9154,0x9155,0x9156,/* 0x40-0x47 */
+	0x9158,0x9159,0x915B,0x915C,0x915F,0x9160,0x9166,0x9167,/* 0x48-0x4F */
+	0x9168,0x916B,0x916D,0x9173,0x917A,0x917B,0x917C,0x9180,/* 0x50-0x57 */
+	0x9181,0x9182,0x9183,0x9184,0x9186,0x9188,0x918A,0x918E,/* 0x58-0x5F */
+	0x918F,0x9193,0x9194,0x9195,0x9196,0x9197,0x9198,0x9199,/* 0x60-0x67 */
+	0x919C,0x919D,0x919E,0x919F,0x91A0,0x91A1,0x91A4,0x91A5,/* 0x68-0x6F */
+	0x91A6,0x91A7,0x91A8,0x91A9,0x91AB,0x91AC,0x91B0,0x91B1,/* 0x70-0x77 */
+	0x91B2,0x91B3,0x91B6,0x91B7,0x91B8,0x91B9,0x91BB,0x0000,/* 0x78-0x7F */
+	
+	0x91BC,0x91BD,0x91BE,0x91BF,0x91C0,0x91C1,0x91C2,0x91C3,/* 0x80-0x87 */
+	0x91C4,0x91C5,0x91C6,0x91C8,0x91CB,0x91D0,0x91D2,0x91D3,/* 0x88-0x8F */
+	0x91D4,0x91D5,0x91D6,0x91D7,0x91D8,0x91D9,0x91DA,0x91DB,/* 0x90-0x97 */
+	0x91DD,0x91DE,0x91DF,0x91E0,0x91E1,0x91E2,0x91E3,0x91E4,/* 0x98-0x9F */
+	0x91E5,0x5E37,0x5E44,0x5E54,0x5E5B,0x5E5E,0x5E61,0x5C8C,/* 0xA0-0xA7 */
+	0x5C7A,0x5C8D,0x5C90,0x5C96,0x5C88,0x5C98,0x5C99,0x5C91,/* 0xA8-0xAF */
+	0x5C9A,0x5C9C,0x5CB5,0x5CA2,0x5CBD,0x5CAC,0x5CAB,0x5CB1,/* 0xB0-0xB7 */
+	0x5CA3,0x5CC1,0x5CB7,0x5CC4,0x5CD2,0x5CE4,0x5CCB,0x5CE5,/* 0xB8-0xBF */
+	0x5D02,0x5D03,0x5D27,0x5D26,0x5D2E,0x5D24,0x5D1E,0x5D06,/* 0xC0-0xC7 */
+	0x5D1B,0x5D58,0x5D3E,0x5D34,0x5D3D,0x5D6C,0x5D5B,0x5D6F,/* 0xC8-0xCF */
+	0x5D5D,0x5D6B,0x5D4B,0x5D4A,0x5D69,0x5D74,0x5D82,0x5D99,/* 0xD0-0xD7 */
+	0x5D9D,0x8C73,0x5DB7,0x5DC5,0x5F73,0x5F77,0x5F82,0x5F87,/* 0xD8-0xDF */
+	0x5F89,0x5F8C,0x5F95,0x5F99,0x5F9C,0x5FA8,0x5FAD,0x5FB5,/* 0xE0-0xE7 */
+	0x5FBC,0x8862,0x5F61,0x72AD,0x72B0,0x72B4,0x72B7,0x72B8,/* 0xE8-0xEF */
+	0x72C3,0x72C1,0x72CE,0x72CD,0x72D2,0x72E8,0x72EF,0x72E9,/* 0xF0-0xF7 */
+	0x72F2,0x72F4,0x72F7,0x7301,0x72F3,0x7303,0x72FA,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E2[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x91E6,0x91E7,0x91E8,0x91E9,0x91EA,0x91EB,0x91EC,0x91ED,/* 0x40-0x47 */
+	0x91EE,0x91EF,0x91F0,0x91F1,0x91F2,0x91F3,0x91F4,0x91F5,/* 0x48-0x4F */
+	0x91F6,0x91F7,0x91F8,0x91F9,0x91FA,0x91FB,0x91FC,0x91FD,/* 0x50-0x57 */
+	0x91FE,0x91FF,0x9200,0x9201,0x9202,0x9203,0x9204,0x9205,/* 0x58-0x5F */
+	0x9206,0x9207,0x9208,0x9209,0x920A,0x920B,0x920C,0x920D,/* 0x60-0x67 */
+	0x920E,0x920F,0x9210,0x9211,0x9212,0x9213,0x9214,0x9215,/* 0x68-0x6F */
+	0x9216,0x9217,0x9218,0x9219,0x921A,0x921B,0x921C,0x921D,/* 0x70-0x77 */
+	0x921E,0x921F,0x9220,0x9221,0x9222,0x9223,0x9224,0x0000,/* 0x78-0x7F */
+	
+	0x9225,0x9226,0x9227,0x9228,0x9229,0x922A,0x922B,0x922C,/* 0x80-0x87 */
+	0x922D,0x922E,0x922F,0x9230,0x9231,0x9232,0x9233,0xF9B1,/* 0x88-0x8F */
+	0x9235,0x9236,0x9237,0x9238,0x9239,0x923A,0x923B,0x923C,/* 0x90-0x97 */
+	0x923D,0x923E,0x923F,0x9240,0x9241,0x9242,0x9243,0x9244,/* 0x98-0x9F */
+	0x9245,0x72FB,0x7317,0x7313,0x7321,0x730A,0x731E,0x731D,/* 0xA0-0xA7 */
+	0x7315,0x7322,0x7339,0x7325,0x732C,0x7338,0x7331,0x7350,/* 0xA8-0xAF */
+	0x734D,0x7357,0x7360,0x736C,0x736F,0x737E,0x821B,0x5925,/* 0xB0-0xB7 */
+	0x98E7,0x5924,0x5902,0x9963,0x9967,0x9968,0x9969,0x996A,/* 0xB8-0xBF */
+	0x996B,0x996C,0x9974,0x9977,0x997D,0x9980,0x9984,0x9987,/* 0xC0-0xC7 */
+	0x998A,0x998D,0x9990,0x9991,0x9993,0x9994,0x9995,0x5E80,/* 0xC8-0xCF */
+	0x5E91,0x5E8B,0x5E96,0x5EA5,0x5EA0,0x5EB9,0x5EB5,0x5EBE,/* 0xD0-0xD7 */
+	0x5EB3,0x8D53,0x5ED2,0x5ED1,0x5EDB,0x5EE8,0x5EEA,0x81BA,/* 0xD8-0xDF */
+	0x5FC4,0x5FC9,0x5FD6,0x5FCF,0x6003,0x5FEE,0x6004,0x5FE1,/* 0xE0-0xE7 */
+	0x5FE4,0x5FFE,0x6005,0x6006,0x5FEA,0x5FED,0x5FF8,0x6019,/* 0xE8-0xEF */
+	0x6035,0x6026,0x601B,0x600F,0x600D,0x6029,0x602B,0x600A,/* 0xF0-0xF7 */
+	0x603F,0x6021,0x6078,0x6079,0x607B,0x607A,0x6042,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E3[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x9246,0x9247,0x9248,0x9249,0x924A,0x924B,0x924C,0x924D,/* 0x40-0x47 */
+	0x924E,0x924F,0x9250,0x9251,0x9252,0x9253,0x9254,0x9255,/* 0x48-0x4F */
+	0x9256,0x9257,0x9258,0x9259,0x925A,0x925B,0x925C,0x925D,/* 0x50-0x57 */
+	0x925E,0x925F,0x9260,0x9261,0x9262,0x9263,0x9264,0x9265,/* 0x58-0x5F */
+	0x9266,0x9267,0x9268,0x9269,0x926A,0x926B,0x926C,0x926D,/* 0x60-0x67 */
+	0x926E,0x926F,0x9270,0x9271,0x9272,0x9273,0x9275,0x9276,/* 0x68-0x6F */
+	0x9277,0x9278,0x9279,0x927A,0x927B,0x927C,0x927D,0x927E,/* 0x70-0x77 */
+	0x927F,0x9280,0x9281,0x9282,0x9283,0x9284,0x9285,0x0000,/* 0x78-0x7F */
+	
+	0x9286,0x9287,0x9288,0x9289,0x928A,0x928B,0x928C,0x928D,/* 0x80-0x87 */
+	0x928F,0x9290,0x9291,0x9292,0x9293,0x9294,0x9295,0x9296,/* 0x88-0x8F */
+	0x9297,0x9298,0x9299,0x929A,0x929B,0x929C,0x929D,0x929E,/* 0x90-0x97 */
+	0x929F,0x92A0,0x92A1,0x92A2,0x92A3,0x92A4,0x92A5,0x92A6,/* 0x98-0x9F */
+	0x92A7,0x606A,0x607D,0x6096,0x609A,0x60AD,0x609D,0x6083,/* 0xA0-0xA7 */
+	0x6092,0x608C,0x609B,0x60EC,0x60BB,0x60B1,0x60DD,0x60D8,/* 0xA8-0xAF */
+	0x60C6,0x60DA,0x60B4,0x6120,0x6126,0x6115,0x6123,0x60F4,/* 0xB0-0xB7 */
+	0x6100,0x610E,0x612B,0x614A,0x6175,0x61AC,0x6194,0x61A7,/* 0xB8-0xBF */
+	0x61B7,0x61D4,0x61F5,0x5FDD,0x96B3,0x95E9,0x95EB,0x95F1,/* 0xC0-0xC7 */
+	0x95F3,0x95F5,0x95F6,0x95FC,0x95FE,0x9603,0x9604,0x9606,/* 0xC8-0xCF */
+	0x9608,0x960A,0x960B,0x960C,0x960D,0x960F,0x9612,0x9615,/* 0xD0-0xD7 */
+	0x9616,0x9617,0x9619,0x961A,0x4E2C,0x723F,0x6215,0x6C35,/* 0xD8-0xDF */
+	0x6C54,0x6C5C,0x6C4A,0x6CA3,0x6C85,0x6C90,0x6C94,0x6C8C,/* 0xE0-0xE7 */
+	0x6C68,0x6C69,0x6C74,0x6C76,0x6C86,0x6CA9,0x6CD0,0x6CD4,/* 0xE8-0xEF */
+	0x6CAD,0x6CF7,0x6CF8,0x6CF1,0x6CD7,0x6CB2,0x6CE0,0x6CD6,/* 0xF0-0xF7 */
+	0x6CFA,0x6CEB,0x6CEE,0x6CB1,0x6CD3,0x6CEF,0x6CFE,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E4[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x92A8,0x92A9,0x92AA,0x92AB,0x92AC,0x92AD,0x92AF,0x92B0,/* 0x40-0x47 */
+	0x92B1,0x92B2,0x92B3,0x92B4,0x92B5,0x92B6,0x92B7,0x92B8,/* 0x48-0x4F */
+	0x92B9,0x92BA,0x92BB,0x92BC,0x92BD,0x92BE,0x92BF,0x92C0,/* 0x50-0x57 */
+	0x92C1,0x92C2,0x92C3,0x92C4,0x92C5,0x92C6,0x92C7,0x92C9,/* 0x58-0x5F */
+	0x92CA,0x92CB,0x92CC,0x92CD,0x92CE,0x92CF,0x92D0,0x92D1,/* 0x60-0x67 */
+	0x92D2,0x92D3,0x92D4,0x92D5,0x92D6,0x92D7,0x92D8,0x92D9,/* 0x68-0x6F */
+	0x92DA,0x92DB,0x92DC,0x92DD,0x92DE,0x92DF,0x92E0,0x92E1,/* 0x70-0x77 */
+	0x92E2,0x92E3,0x92E4,0x92E5,0x92E6,0x92E7,0x92E8,0x0000,/* 0x78-0x7F */
+	
+	0x92E9,0x92EA,0x92EB,0x92EC,0x92ED,0x92EE,0x92EF,0x92F0,/* 0x80-0x87 */
+	0x92F1,0x92F2,0x92F3,0x92F4,0x92F5,0x92F6,0x92F7,0x92F8,/* 0x88-0x8F */
+	0x92F9,0x92FA,0x92FB,0x92FC,0x92FD,0x92FE,0x92FF,0x9300,/* 0x90-0x97 */
+	0x9301,0x9302,0x9303,0xF93F,0x9305,0x9306,0x9307,0x9308,/* 0x98-0x9F */
+	0x9309,0x6D39,0x6D27,0x6D0C,0x6D43,0x6D48,0x6D07,0x6D04,/* 0xA0-0xA7 */
+	0x6D19,0x6D0E,0x6D2B,0x6D4D,0x6D2E,0x6D35,0x6D1A,0x6D4F,/* 0xA8-0xAF */
+	0x6D52,0x6D54,0x6D33,0x6D91,0x6D6F,0x6D9E,0x6DA0,0x6D5E,/* 0xB0-0xB7 */
+	0x6D93,0x6D94,0x6D5C,0x6D60,0x6D7C,0x6D63,0x6E1A,0x6DC7,/* 0xB8-0xBF */
+	0x6DC5,0x6DDE,0x6E0E,0x6DBF,0x6DE0,0x6E11,0x6DE6,0x6DDD,/* 0xC0-0xC7 */
+	0x6DD9,0x6E16,0x6DAB,0x6E0C,0x6DAE,0x6E2B,0x6E6E,0x6E4E,/* 0xC8-0xCF */
+	0x6E6B,0x6EB2,0x6E5F,0x6E86,0x6E53,0x6E54,0x6E32,0x6E25,/* 0xD0-0xD7 */
+	0x6E44,0x6EDF,0x6EB1,0x6E98,0x6EE0,0x6F2D,0x6EE2,0x6EA5,/* 0xD8-0xDF */
+	0x6EA7,0x6EBD,0x6EBB,0x6EB7,0x6ED7,0x6EB4,0x6ECF,0x6E8F,/* 0xE0-0xE7 */
+	0x6EC2,0x6E9F,0x6F62,0x6F46,0x6F47,0x6F24,0x6F15,0x6EF9,/* 0xE8-0xEF */
+	0x6F2F,0x6F36,0x6F4B,0x6F74,0x6F2A,0x6F09,0x6F29,0x6F89,/* 0xF0-0xF7 */
+	0x6F8D,0x6F8C,0x6F78,0x6F72,0x6F7C,0x6F7A,0x6FD1,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E5[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x930A,0x930B,0x930C,0x930D,0x930E,0x930F,0x9310,0x9311,/* 0x40-0x47 */
+	0x9312,0x9313,0x9314,0x9315,0x9316,0x9317,0x9318,0x9319,/* 0x48-0x4F */
+	0x931A,0x931B,0x931C,0x931D,0x931E,0x931F,0x9320,0x9321,/* 0x50-0x57 */
+	0x9322,0x9323,0x9324,0x9325,0x9326,0x9327,0x9328,0x9329,/* 0x58-0x5F */
+	0x932A,0x932B,0x932C,0x932D,0x932E,0x932F,0x9330,0x9331,/* 0x60-0x67 */
+	0x9332,0x9333,0x9334,0x9335,0x9336,0x9337,0x9338,0x9339,/* 0x68-0x6F */
+	0x933A,0x933B,0x933C,0x933D,0x933F,0x9340,0x9341,0x9342,/* 0x70-0x77 */
+	0x9343,0x9344,0x9345,0x9346,0x9347,0x9348,0x9349,0x0000,/* 0x78-0x7F */
+	
+	0xF99B,0x934B,0x934C,0x934D,0x934E,0x934F,0x9350,0x9351,/* 0x80-0x87 */
+	0x9352,0x9353,0x9354,0x9355,0x9356,0x9357,0x9358,0x9359,/* 0x88-0x8F */
+	0x935A,0x935B,0x935C,0x935D,0x935E,0x935F,0x9360,0x9361,/* 0x90-0x97 */
+	0x9362,0x9363,0x9364,0x9365,0x9366,0x9367,0x9368,0x9369,/* 0x98-0x9F */
+	0x936B,0x6FC9,0x6FA7,0x6FB9,0x6FB6,0x6FC2,0x6FE1,0x6FEE,/* 0xA0-0xA7 */
+	0x6FDE,0x6FE0,0x6FEF,0x701A,0x7023,0x701B,0x7039,0x7035,/* 0xA8-0xAF */
+	0x704F,0x705E,0x5B80,0x5B84,0x5B95,0x5B93,0x5BA5,0x5BB8,/* 0xB0-0xB7 */
+	0x752F,0x9A9E,0x6434,0x5BE4,0xF9BC,0x8930,0x5BF0,0x8E47,/* 0xB8-0xBF */
+	0x8B07,0x8FB6,0x8FD3,0x8FD5,0x8FE5,0x8FEE,0x8FE4,0x8FE9,/* 0xC0-0xC7 */
+	0x8FE6,0x8FF3,0x8FE8,0x9005,0x9004,0x900B,0x9026,0x9011,/* 0xC8-0xCF */
+	0x900D,0x9016,0x9021,0x9035,0x9036,0x902D,0x902F,0x9044,/* 0xD0-0xD7 */
+	0x9051,0x9052,0x9050,0x9068,0x9058,0x9062,0x905B,0x66B9,/* 0xD8-0xDF */
+	0x9074,0x907D,0x9082,0x9088,0x9083,0x908B,0x5F50,0x5F57,/* 0xE0-0xE7 */
+	0x5F56,0x5F58,0x5C3B,0x54AB,0x5C50,0x5C59,0x5B71,0x5C63,/* 0xE8-0xEF */
+	0x5C66,0x7FBC,0x5F2A,0x5F29,0x5F2D,0x8274,0x5F3C,0x9B3B,/* 0xF0-0xF7 */
+	0x5C6E,0x5981,0x5983,0x598D,0x59A9,0x59AA,0x59A3,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E6[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x936C,0x936D,0x936E,0x936F,0x9370,0x9371,0x9372,0x9373,/* 0x40-0x47 */
+	0x9374,0x9375,0x9376,0x9377,0x9378,0x9379,0x937A,0x937B,/* 0x48-0x4F */
+	0x937C,0x937D,0x937E,0x937F,0x9380,0x9381,0x9382,0x9383,/* 0x50-0x57 */
+	0x9384,0x9385,0x9386,0x9387,0x9388,0x9389,0x938A,0x938B,/* 0x58-0x5F */
+	0x938C,0x938D,0x938E,0x9390,0x9391,0x9392,0x9393,0x9394,/* 0x60-0x67 */
+	0x9395,0x9396,0x9397,0x9398,0x9399,0x939A,0x939B,0x939C,/* 0x68-0x6F */
+	0x939D,0x939E,0x939F,0x93A0,0x93A1,0x93A2,0x93A3,0x93A4,/* 0x70-0x77 */
+	0x93A5,0x93A6,0x93A7,0x93A8,0x93A9,0x93AA,0x93AB,0x0000,/* 0x78-0x7F */
+	
+	0x93AC,0x93AD,0x93AE,0x93AF,0x93B0,0x93B1,0x93B2,0x93B3,/* 0x80-0x87 */
+	0x93B4,0x93B5,0x93B6,0x93B7,0x93B8,0x93B9,0x93BA,0x93BB,/* 0x88-0x8F */
+	0x93BC,0x93BD,0x93BE,0x93BF,0x93C0,0x93C1,0x93C2,0x93C3,/* 0x90-0x97 */
+	0x93C4,0x93C5,0x93C6,0x93C7,0x93C8,0x93C9,0x93CB,0x93CC,/* 0x98-0x9F */
+	0x93CD,0x5997,0x59CA,0x59AB,0x599E,0x59A4,0x59D2,0x59B2,/* 0xA0-0xA7 */
+	0x59AF,0x59D7,0x59BE,0x5A05,0x5A06,0x59DD,0x5A08,0x59E3,/* 0xA8-0xAF */
+	0x59D8,0x59F9,0x5A0C,0x5A09,0x5A32,0x5A34,0x5A11,0x5A23,/* 0xB0-0xB7 */
+	0x5A13,0x5A40,0x5A67,0x5A4A,0x5A55,0x5A3C,0x5A62,0x5A75,/* 0xB8-0xBF */
+	0x80EC,0x5AAA,0x5A9B,0x5A77,0x5A7A,0x5ABE,0x5AEB,0x5AB2,/* 0xC0-0xC7 */
+	0x5AD2,0x5AD4,0x5AB8,0x5AE0,0x5AE3,0x5AF1,0x5AD6,0x5AE6,/* 0xC8-0xCF */
+	0x5AD8,0x5ADC,0x5B09,0x5B17,0x5B16,0x5B32,0x5B37,0x5B40,/* 0xD0-0xD7 */
+	0x5C15,0x5C1C,0x5B5A,0x5B65,0x5B73,0x5B51,0x5B53,0x5B62,/* 0xD8-0xDF */
+	0x9A75,0x9A77,0x9A78,0x9A7A,0x9A7F,0x9A7D,0x9A80,0x9A81,/* 0xE0-0xE7 */
+	0x9A85,0x9A88,0x9A8A,0x9A90,0x9A92,0x9A93,0x9A96,0x9A98,/* 0xE8-0xEF */
+	0x9A9B,0x9A9C,0x9A9D,0x9A9F,0x9AA0,0x9AA2,0x9AA3,0x9AA5,/* 0xF0-0xF7 */
+	0x9AA7,0x7E9F,0x7EA1,0x7EA3,0x7EA5,0x7EA8,0x7EA9,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E7[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x93CE,0x93CF,0x93D0,0x93D1,0x93D2,0x93D3,0x93D4,0x93D5,/* 0x40-0x47 */
+	0x93D7,0x93D8,0x93D9,0x93DA,0x93DB,0x93DC,0x93DD,0x93DE,/* 0x48-0x4F */
+	0x93DF,0x93E0,0x93E1,0x93E2,0x93E3,0x93E4,0x93E5,0x93E6,/* 0x50-0x57 */
+	0x93E7,0x93E8,0x93E9,0x93EA,0x93EB,0x93EC,0x93ED,0x93EE,/* 0x58-0x5F */
+	0x93EF,0x93F0,0x93F1,0x93F2,0x93F3,0x93F4,0x93F5,0x93F6,/* 0x60-0x67 */
+	0x93F7,0x93F8,0x93F9,0x93FA,0x93FB,0x93FC,0x93FD,0x93FE,/* 0x68-0x6F */
+	0x93FF,0x9400,0x9401,0x9402,0x9403,0x9404,0x9405,0x9406,/* 0x70-0x77 */
+	0x9407,0x9408,0x9409,0x940A,0x940B,0x940C,0x940D,0x0000,/* 0x78-0x7F */
+	
+	0x940E,0x940F,0x9410,0x9411,0x9412,0x9413,0x9414,0x9415,/* 0x80-0x87 */
+	0x9416,0x9417,0x9418,0x9419,0x941A,0x941B,0x941C,0x941D,/* 0x88-0x8F */
+	0x941E,0x941F,0x9420,0x9421,0x9422,0x9423,0x9424,0x9425,/* 0x90-0x97 */
+	0x9426,0x9427,0x9428,0x9429,0x942A,0x942B,0x942C,0x942D,/* 0x98-0x9F */
+	0x942E,0x7EAD,0x7EB0,0x7EBE,0x7EC0,0x7EC1,0x7EC2,0x7EC9,/* 0xA0-0xA7 */
+	0x7ECB,0x7ECC,0x7ED0,0x7ED4,0x7ED7,0x7EDB,0x7EE0,0x7EE1,/* 0xA8-0xAF */
+	0x7EE8,0x7EEB,0x7EEE,0x7EEF,0x7EF1,0x7EF2,0x7F0D,0x7EF6,/* 0xB0-0xB7 */
+	0x7EFA,0x7EFB,0x7EFE,0x7F01,0x7F02,0x7F03,0x7F07,0x7F08,/* 0xB8-0xBF */
+	0x7F0B,0x7F0C,0x7F0F,0x7F11,0x7F12,0x7F17,0x7F19,0x7F1C,/* 0xC0-0xC7 */
+	0x7F1B,0x7F1F,0x7F21,0x7F22,0x7F23,0x7F24,0x7F25,0x7F26,/* 0xC8-0xCF */
+	0x7F27,0x7F2A,0x7F2B,0x7F2C,0x7F2D,0x7F2F,0x7F30,0x7F31,/* 0xD0-0xD7 */
+	0x7F32,0x7F33,0x7F35,0x5E7A,0x757F,0x5DDB,0x753E,0x9095,/* 0xD8-0xDF */
+	0x738E,0x7391,0x73AE,0x73A2,0x739F,0x73CF,0x73C2,0x73D1,/* 0xE0-0xE7 */
+	0x73B7,0x73B3,0x73C0,0x73C9,0x73C8,0x73E5,0x73D9,0x987C,/* 0xE8-0xEF */
+	0x740A,0x73E9,0x73E7,0xF917,0x73BA,0x73F2,0x740F,0x742A,/* 0xF0-0xF7 */
+	0x745B,0x7426,0x7425,0x7428,0x7430,0x742E,0x742C,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E8[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x942F,0x9430,0x9431,0x9432,0x9433,0x9434,0x9435,0x9436,/* 0x40-0x47 */
+	0x9437,0x9438,0x9439,0x943A,0x943B,0x943C,0x943D,0x943F,/* 0x48-0x4F */
+	0x9440,0x9441,0x9442,0x9443,0x9444,0x9445,0x9446,0x9447,/* 0x50-0x57 */
+	0x9448,0x9449,0x944A,0x944B,0x944C,0x944D,0x944E,0x944F,/* 0x58-0x5F */
+	0x9450,0x9451,0x9452,0x9453,0x9454,0x9455,0x9456,0x9457,/* 0x60-0x67 */
+	0x9458,0x9459,0x945A,0x945B,0x945C,0x945D,0x945E,0x945F,/* 0x68-0x6F */
+	0x9460,0x9461,0x9462,0x9463,0x9464,0x9465,0x9466,0x9467,/* 0x70-0x77 */
+	0x9468,0x9469,0x946A,0x946C,0x946D,0x946E,0x946F,0x0000,/* 0x78-0x7F */
+	
+	0x9470,0x9471,0x9472,0x9473,0x9474,0x9475,0x9476,0x9477,/* 0x80-0x87 */
+	0x9478,0x9479,0x947A,0x947B,0x947C,0x947D,0x947E,0x947F,/* 0x88-0x8F */
+	0x9480,0x9481,0x9482,0x9483,0x9484,0x9491,0x9496,0x9498,/* 0x90-0x97 */
+	0x94C7,0x94CF,0x94D3,0x94D4,0x94DA,0x94E6,0x94FB,0x951C,/* 0x98-0x9F */
+	0x9520,0x741B,0x741A,0x7441,0x745C,0x7457,0x7455,0x7459,/* 0xA0-0xA7 */
+	0x7477,0x746D,0x747E,0x749C,0x748E,0x7480,0x7481,0x7487,/* 0xA8-0xAF */
+	0x748B,0x749E,0x74A8,0x74A9,0x7490,0x74A7,0x74D2,0x74BA,/* 0xB0-0xB7 */
+	0x97EA,0x97EB,0x97EC,0x674C,0x6753,0x675E,0x6748,0x6769,/* 0xB8-0xBF */
+	0x67A5,0x6787,0x676A,0x6773,0x6798,0x67A7,0x6775,0x67A8,/* 0xC0-0xC7 */
+	0x679E,0x67AD,0x678B,0x6777,0x677C,0x67F0,0x6809,0x67D8,/* 0xC8-0xCF */
+	0x680A,0x67E9,0x67B0,0x680C,0x67D9,0x67B5,0x67DA,0x67B3,/* 0xD0-0xD7 */
+	0x67DD,0x6800,0x67C3,0x67B8,0x67E2,0x680E,0x67C1,0x67FD,/* 0xD8-0xDF */
+	0x6832,0x6833,0x6860,0x6861,0x684E,0x6862,0x6844,0x6864,/* 0xE0-0xE7 */
+	0x6883,0x681D,0x6855,0x6866,0x6841,0x6867,0x6840,0x683E,/* 0xE8-0xEF */
+	0x684A,0x6849,0x6829,0x68B5,0x688F,0x6874,0x6877,0x6893,/* 0xF0-0xF7 */
+	0x686B,0x68C2,0x696E,0x68FC,0x691F,0x6920,0x68F9,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E9[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x9527,0x9533,0x953D,0x9543,0x9548,0x954B,0x9555,0x955A,/* 0x40-0x47 */
+	0x9560,0x956E,0x9574,0x9575,0x9577,0x9578,0x9579,0x957A,/* 0x48-0x4F */
+	0x957B,0x957C,0x957D,0x957E,0x9580,0x9581,0x9582,0x9583,/* 0x50-0x57 */
+	0x9584,0x9585,0x9586,0x9587,0x9588,0x9589,0x958A,0x958B,/* 0x58-0x5F */
+	0x958C,0x958D,0x958E,0x958F,0x9590,0x9591,0x9592,0x9593,/* 0x60-0x67 */
+	0x9594,0x9595,0x9596,0x9597,0x9598,0x9599,0x959A,0x959B,/* 0x68-0x6F */
+	0x959C,0x959D,0x959E,0x959F,0x95A0,0x95A1,0x95A2,0x95A3,/* 0x70-0x77 */
+	0x95A4,0x95A5,0x95A6,0x95A7,0x95A8,0x95A9,0x95AA,0x0000,/* 0x78-0x7F */
+	
+	0x95AB,0x95AC,0xF986,0x95AE,0x95AF,0x95B0,0x95B1,0x95B2,/* 0x80-0x87 */
+	0x95B3,0x95B4,0x95B5,0x95B6,0x95B7,0x95B8,0x95B9,0x95BA,/* 0x88-0x8F */
+	0x95BB,0x95BC,0x95BD,0x95BE,0x95BF,0x95C0,0x95C1,0x95C2,/* 0x90-0x97 */
+	0x95C3,0x95C4,0x95C5,0x95C6,0x95C7,0x95C8,0x95C9,0x95CA,/* 0x98-0x9F */
+	0x95CB,0x6924,0x68F0,0x690B,0x6901,0x6957,0x68E3,0x6910,/* 0xA0-0xA7 */
+	0x6971,0x6939,0x6960,0x6942,0x695D,0x6984,0x696B,0x6980,/* 0xA8-0xAF */
+	0x6998,0x6978,0x6934,0x69CC,0x6987,0x6988,0x69CE,0x6989,/* 0xB0-0xB7 */
+	0x6966,0x6963,0x6979,0x699B,0x69A7,0x69BB,0x69AB,0x69AD,/* 0xB8-0xBF */
+	0x69D4,0x69B1,0x69C1,0x69CA,0x69DF,0x6995,0x69E0,0x698D,/* 0xC0-0xC7 */
+	0x69FF,0x6A2F,0x69ED,0x6A17,0x6A18,0x6A65,0x69F2,0x6A44,/* 0xC8-0xCF */
+	0x6A3E,0x6AA0,0x6A50,0x6A5B,0x6A35,0x6A8E,0x6A79,0x6A3D,/* 0xD0-0xD7 */
+	0x6A28,0x6A58,0x6A7C,0x6A91,0x6A90,0x6AA9,0x6A97,0x6AAB,/* 0xD8-0xDF */
+	0x7337,0x7352,0x6B81,0x6B82,0x6B87,0x6B84,0x6B92,0x6B93,/* 0xE0-0xE7 */
+	0x6B8D,0x6B9A,0x6B9B,0x6BA1,0x6BAA,0x8F6B,0x8F6D,0x8F71,/* 0xE8-0xEF */
+	0x8F72,0x8F73,0x8F75,0x8F76,0x8F78,0x8F77,0x8F79,0x8F7A,/* 0xF0-0xF7 */
+	0x8F7C,0x8F7E,0x8F81,0x8F82,0x8F84,0x8F87,0x8F8B,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_EA[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x95CC,0x95CD,0x95CE,0x95CF,0x95D0,0x95D1,0x95D2,0x95D3,/* 0x40-0x47 */
+	0x95D4,0x95D5,0x95D6,0x95D7,0x95D8,0x95D9,0x95DA,0x95DB,/* 0x48-0x4F */
+	0x95DC,0x95DD,0x95DE,0x95DF,0x95E0,0x95E1,0x95E2,0x95E3,/* 0x50-0x57 */
+	0x95E4,0x95E5,0x95E6,0x95E7,0x95EC,0x95FF,0x9607,0x9613,/* 0x58-0x5F */
+	0x9618,0x961B,0x961E,0x9620,0x9623,0x9624,0x9625,0x9626,/* 0x60-0x67 */
+	0x9627,0x9628,0x9629,0x962B,0x962C,0x962D,0x962F,0x9630,/* 0x68-0x6F */
+	0x9637,0x9638,0x9639,0x963A,0x963E,0x9641,0x9643,0x964A,/* 0x70-0x77 */
+	0x964E,0x964F,0x9651,0x9652,0x9653,0x9656,0x9657,0x0000,/* 0x78-0x7F */
+	
+	0x9658,0x9659,0x965A,0x965C,0x965D,0x965E,0x9660,0x9663,/* 0x80-0x87 */
+	0x9665,0x9666,0x966B,0x966D,0x966E,0x966F,0x9670,0x9671,/* 0x88-0x8F */
+	0x9673,0xF9D3,0x9679,0x967A,0x967B,0x967C,0x967D,0x967E,/* 0x90-0x97 */
+	0x967F,0x9680,0x9681,0x9682,0x9683,0x9684,0x9687,0x9689,/* 0x98-0x9F */
+	0x968A,0x8F8D,0x8F8E,0x8F8F,0x8F98,0x8F9A,0x8ECE,0x620B,/* 0xA0-0xA7 */
+	0x6217,0x621B,0x621F,0x6222,0x6221,0x6225,0x6224,0x622C,/* 0xA8-0xAF */
+	0x81E7,0x74EF,0x74F4,0x74FF,0x750F,0x7511,0x7513,0x6534,/* 0xB0-0xB7 */
+	0x65EE,0x65EF,0x65F0,0x660A,0x6619,0x6772,0x6603,0x6615,/* 0xB8-0xBF */
+	0x6600,0x7085,0x66F7,0x661D,0x6634,0x6631,0x6636,0x6635,/* 0xC0-0xC7 */
+	0x8006,0x665F,0x6654,0x6641,0x664F,0x6656,0x6661,0x6657,/* 0xC8-0xCF */
+	0x6677,0x6684,0x668C,0x66A7,0x669D,0x66BE,0x66DB,0x66DC,/* 0xD0-0xD7 */
+	0x66E6,0x66E9,0x8D32,0x8D33,0x8D36,0x8D3B,0x8D3D,0x8D40,/* 0xD8-0xDF */
+	0x8D45,0x8D46,0x8D48,0x8D49,0x8D47,0x8D4D,0x8D55,0x8D59,/* 0xE0-0xE7 */
+	0x89C7,0x89CA,0x89CB,0x89CC,0x89CE,0x89CF,0x89D0,0x89D1,/* 0xE8-0xEF */
+	0x726E,0x729F,0x725D,0x7266,0x726F,0x727E,0x727F,0x7284,/* 0xF0-0xF7 */
+	0x728B,0x728D,0x728F,0x7292,0x6308,0x6332,0x63B0,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_EB[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x968C,0x968E,0x9691,0x9692,0x9693,0x9695,0x9696,0x969A,/* 0x40-0x47 */
+	0x969B,0x969D,0x969E,0x969F,0x96A0,0x96A1,0x96A2,0x96A3,/* 0x48-0x4F */
+	0x96A4,0x96A5,0x96A6,0x96A8,0x96A9,0x96AA,0x96AB,0x96AC,/* 0x50-0x57 */
+	0x96AD,0x96AE,0x96AF,0x96B1,0x96B2,0x96B4,0x96B5,0x96B7,/* 0x58-0x5F */
+	0xF9B8,0x96BA,0x96BB,0x96BF,0x96C2,0x96C3,0x96C8,0x96CA,/* 0x60-0x67 */
+	0x96CB,0x96D0,0x96D1,0x96D3,0x96D4,0x96D6,0x96D7,0x96D8,/* 0x68-0x6F */
+	0x96D9,0x96DA,0x96DB,0x96DC,0x96DD,0x96DE,0x96DF,0x96E1,/* 0x70-0x77 */
+	0xF9EA,0x96E3,0x96E4,0x96E5,0x96E6,0x96E7,0x96EB,0x0000,/* 0x78-0x7F */
+	
+	0x96EC,0x96ED,0x96EE,0x96F0,0x96F1,0x96F2,0x96F4,0x96F5,/* 0x80-0x87 */
+	0x96F8,0x96FA,0x96FB,0x96FC,0x96FD,0x96FF,0x9702,0x9703,/* 0x88-0x8F */
+	0x9705,0x970A,0x970B,0x970C,0x9710,0x9711,0x9712,0x9714,/* 0x90-0x97 */
+	0x9715,0x9717,0x9718,0x9719,0x971A,0x971B,0x971D,0x971F,/* 0x98-0x9F */
+	0x9720,0x643F,0x64D8,0x8004,0x6BEA,0x6BF3,0x6BFD,0x6BF5,/* 0xA0-0xA7 */
+	0x6BF9,0x6C05,0x6C07,0x6C06,0x6C0D,0x6C15,0x6C18,0x6C19,/* 0xA8-0xAF */
+	0x6C1A,0x6C21,0x6C29,0x6C24,0x6C2A,0x6C32,0x6535,0x6555,/* 0xB0-0xB7 */
+	0x656B,0x724D,0x7252,0x7256,0x7230,0x8662,0x5216,0x809F,/* 0xB8-0xBF */
+	0x809C,0x8093,0x80BC,0x670A,0x80BD,0x80B1,0x80AB,0x80AD,/* 0xC0-0xC7 */
+	0x80B4,0x80B7,0x80E7,0x80E8,0x80E9,0x80EA,0x80DB,0x80C2,/* 0xC8-0xCF */
+	0x80C4,0x80D9,0x80CD,0x80D7,0x6710,0x80DD,0x80EB,0x80F1,/* 0xD0-0xD7 */
+	0x80F4,0x80ED,0x810D,0x810E,0x80F2,0x80FC,0x6715,0x8112,/* 0xD8-0xDF */
+	0x8C5A,0x8136,0x811E,0x812C,0x8118,0x8132,0x8148,0x814C,/* 0xE0-0xE7 */
+	0x8153,0x8174,0x8159,0x815A,0x8171,0x8160,0x8169,0x817C,/* 0xE8-0xEF */
+	0x817D,0x816D,0x8167,0x584D,0x5AB5,0x8188,0x8182,0x8191,/* 0xF0-0xF7 */
+	0x6ED5,0x81A3,0x81AA,0x81CC,0x6726,0x81CA,0x81BB,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_EC[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x9721,0x9722,0x9723,0x9724,0x9725,0x9726,0x9727,0x9728,/* 0x40-0x47 */
+	0x9729,0x972B,0x972C,0x972E,0x972F,0x9731,0x9733,0x9734,/* 0x48-0x4F */
+	0x9735,0x9736,0x9737,0x973A,0x973B,0x973C,0x973D,0x973F,/* 0x50-0x57 */
+	0x9740,0x9741,0x9742,0x9743,0x9744,0x9745,0x9746,0x9747,/* 0x58-0x5F */
+	0xF9B3,0x9749,0x974A,0x974B,0x974C,0x974D,0x974E,0x974F,/* 0x60-0x67 */
+	0x9750,0x9751,0x9754,0x9755,0x9757,0x9758,0x975A,0x975C,/* 0x68-0x6F */
+	0x975D,0x975F,0x9763,0x9764,0x9766,0x9767,0x9768,0x976A,/* 0x70-0x77 */
+	0x976B,0x976C,0x976D,0x976E,0x976F,0x9770,0x9771,0x0000,/* 0x78-0x7F */
+	
+	0x9772,0x9775,0x9777,0x9778,0x9779,0x977A,0x977B,0x977D,/* 0x80-0x87 */
+	0x977E,0x977F,0x9780,0x9781,0x9782,0x9783,0x9784,0x9786,/* 0x88-0x8F */
+	0x9787,0x9788,0x9789,0x978A,0x978C,0x978E,0x978F,0x9790,/* 0x90-0x97 */
+	0x9793,0x9795,0x9796,0x9797,0x9799,0x979A,0x979B,0x979C,/* 0x98-0x9F */
+	0x979D,0x81C1,0x81A6,0x6B24,0x6B37,0x6B39,0x6B43,0x6B46,/* 0xA0-0xA7 */
+	0x6B59,0x98D1,0x98D2,0x98D3,0x98D5,0x98D9,0x98DA,0x6BB3,/* 0xA8-0xAF */
+	0x5F40,0x6BC2,0x89F3,0x6590,0x9F51,0x6593,0x65BC,0x65C6,/* 0xB0-0xB7 */
+	0x65C4,0x65C3,0x65CC,0x65CE,0x65D2,0x65D6,0x7080,0x709C,/* 0xB8-0xBF */
+	0x7096,0x709D,0x70BB,0x70C0,0x70B7,0x70AB,0x70B1,0x70E8,/* 0xC0-0xC7 */
+	0x70CA,0x7110,0x7113,0x7116,0x712F,0x7131,0x7173,0x715C,/* 0xC8-0xCF */
+	0x7168,0x7145,0x7172,0x714A,0x7178,0x717A,0x7198,0x71B3,/* 0xD0-0xD7 */
+	0x71B5,0x71A8,0x71A0,0x71E0,0x71D4,0x71E7,0x71F9,0x721D,/* 0xD8-0xDF */
+	0x7228,0x706C,0x7118,0x7166,0x71B9,0x623E,0x623D,0x6243,/* 0xE0-0xE7 */
+	0x6248,0x6249,0x793B,0x7940,0x7946,0x7949,0x795B,0x795C,/* 0xE8-0xEF */
+	0x7953,0x795A,0x7962,0x7957,0x7960,0x796F,0x7967,0x797A,/* 0xF0-0xF7 */
+	0x7985,0x798A,0x799A,0x79A7,0x79B3,0x5FD1,0x5FD0,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_ED[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x979E,0x979F,0x97A1,0x97A2,0x97A4,0x97A5,0x97A6,0x97A7,/* 0x40-0x47 */
+	0x97A8,0x97A9,0x97AA,0x97AC,0x97AE,0x97B0,0x97B1,0x97B3,/* 0x48-0x4F */
+	0x97B5,0x97B6,0x97B7,0x97B8,0x97B9,0x97BA,0x97BB,0x97BC,/* 0x50-0x57 */
+	0x97BD,0x97BE,0x97BF,0x97C0,0x97C1,0x97C2,0x97C3,0x97C4,/* 0x58-0x5F */
+	0x97C5,0x97C6,0x97C7,0x97C8,0x97C9,0x97CA,0x97CB,0x97CC,/* 0x60-0x67 */
+	0x97CD,0x97CE,0x97CF,0x97D0,0x97D1,0x97D2,0x97D3,0x97D4,/* 0x68-0x6F */
+	0x97D5,0x97D6,0x97D7,0x97D8,0x97D9,0x97DA,0x97DB,0x97DC,/* 0x70-0x77 */
+	0x97DD,0x97DE,0x97DF,0x97E0,0x97E1,0x97E2,0x97E3,0x0000,/* 0x78-0x7F */
+	
+	0x97E4,0x97E5,0x97E8,0x97EE,0x97EF,0x97F0,0x97F1,0x97F2,/* 0x80-0x87 */
+	0x97F4,0x97F7,0x97F8,0x97F9,0x97FA,0x97FB,0x97FC,0x97FD,/* 0x88-0x8F */
+	0x97FE,0x97FF,0x9800,0x9801,0x9802,0x9803,0x9804,0x9805,/* 0x90-0x97 */
+	0x9806,0x9807,0x9808,0x9809,0x980A,0x980B,0x980C,0x980D,/* 0x98-0x9F */
+	0x980E,0x603C,0x605D,0x605A,0x6067,0x6041,0x6059,0x6063,/* 0xA0-0xA7 */
+	0x60AB,0x6106,0x610D,0x615D,0x61A9,0x619D,0x61CB,0x61D1,/* 0xA8-0xAF */
+	0x6206,0x8080,0x807F,0x6C93,0x6CF6,0x6DFC,0x77F6,0x77F8,/* 0xB0-0xB7 */
+	0x7800,0x7809,0x7817,0x7818,0x7811,0x65AB,0x782D,0x781C,/* 0xB8-0xBF */
+	0x781D,0x7839,0x783A,0x783B,0x781F,0x783C,0x7825,0x782C,/* 0xC0-0xC7 */
+	0x7823,0x7829,0x784E,0x786D,0x7856,0x7857,0x7826,0x7850,/* 0xC8-0xCF */
+	0x7847,0x784C,0x786A,0x789B,0x7893,0x789A,0x7887,0x789C,/* 0xD0-0xD7 */
+	0x78A1,0x78A3,0x78B2,0x78B9,0x78A5,0x78D4,0x78D9,0x78C9,/* 0xD8-0xDF */
+	0x78EC,0x78F2,0x7905,0x78F4,0x7913,0x7924,0x791E,0x7934,/* 0xE0-0xE7 */
+	0x9F9B,0x9EF9,0x9EFB,0x9EFC,0x76F1,0x7704,0x770D,0x76F9,/* 0xE8-0xEF */
+	0x7707,0x7708,0x771A,0x7722,0x7719,0x772D,0x7726,0x7735,/* 0xF0-0xF7 */
+	0x7738,0x7750,0x7751,0x7747,0x7743,0x775A,0x7768,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_EE[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x980F,0x9810,0x9811,0x9812,0x9813,0x9814,0x9815,0x9816,/* 0x40-0x47 */
+	0x9817,0xF9B4,0x9819,0x981A,0x981B,0x981C,0x981D,0x981E,/* 0x48-0x4F */
+	0x981F,0x9820,0x9821,0x9822,0x9823,0x9824,0x9825,0x9826,/* 0x50-0x57 */
+	0x9827,0x9828,0x9829,0x982A,0x982B,0x982C,0x982D,0x982E,/* 0x58-0x5F */
+	0x982F,0x9830,0x9831,0x9832,0x9833,0x9834,0x9835,0x9836,/* 0x60-0x67 */
+	0x9837,0x9838,0x9839,0x983A,0x983B,0x983C,0x983D,0x983E,/* 0x68-0x6F */
+	0x983F,0x9840,0x9841,0x9842,0x9843,0x9844,0x9845,0x9846,/* 0x70-0x77 */
+	0x9847,0x9848,0x9849,0x984A,0x984B,0x984C,0x984D,0x0000,/* 0x78-0x7F */
+	
+	0x984E,0x984F,0x9850,0x9851,0x9852,0x9853,0x9854,0x9855,/* 0x80-0x87 */
+	0x9856,0x9857,0x9858,0x9859,0x985A,0x985B,0x985C,0x985D,/* 0x88-0x8F */
+	0xF9D0,0x985F,0x9860,0x9861,0x9862,0x9863,0x9864,0x9865,/* 0x90-0x97 */
+	0x9866,0x9867,0x9868,0x9869,0x986A,0x986B,0x986C,0x986D,/* 0x98-0x9F */
+	0x986E,0x7762,0x7765,0x777F,0x778D,0x777D,0x7780,0x778C,/* 0xA0-0xA7 */
+	0x7791,0x779F,0x77A0,0x77B0,0x77B5,0x77BD,0x753A,0x7540,/* 0xA8-0xAF */
+	0x754E,0x754B,0x7548,0x755B,0x7572,0x7579,0x7583,0x7F58,/* 0xB0-0xB7 */
+	0x7F61,0x7F5F,0x8A48,0x7F68,0x7F74,0x7F71,0xF9E6,0x7F81,/* 0xB8-0xBF */
+	0x7F7E,0x76CD,0x76E5,0x8832,0x9485,0x9486,0x9487,0x948B,/* 0xC0-0xC7 */
+	0x948A,0x948C,0x948D,0x948F,0x9490,0x9494,0x9497,0x9495,/* 0xC8-0xCF */
+	0x949A,0x949B,0x949C,0x94A3,0x94A4,0x94AB,0x94AA,0x94AD,/* 0xD0-0xD7 */
+	0x94AC,0x94AF,0x94B0,0x94B2,0x94B4,0x94B6,0x94B7,0x94B8,/* 0xD8-0xDF */
+	0x94B9,0x94BA,0x94BC,0x94BD,0x94BF,0x94C4,0x94C8,0x94C9,/* 0xE0-0xE7 */
+	0x94CA,0x94CB,0x94CC,0x94CD,0x94CE,0x94D0,0x94D1,0x94D2,/* 0xE8-0xEF */
+	0x94D5,0x94D6,0x94D7,0x94D9,0x94D8,0x94DB,0x94DE,0x94DF,/* 0xF0-0xF7 */
+	0x94E0,0x94E2,0x94E4,0x94E5,0x94E7,0x94E8,0x94EA,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_EF[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x986F,0x9870,0x9871,0x9872,0x9873,0x9874,0x988B,0x988E,/* 0x40-0x47 */
+	0x9892,0x9895,0x9899,0x98A3,0x98A8,0x98A9,0x98AA,0x98AB,/* 0x48-0x4F */
+	0x98AC,0x98AD,0x98AE,0x98AF,0x98B0,0x98B1,0x98B2,0x98B3,/* 0x50-0x57 */
+	0x98B4,0x98B5,0x98B6,0x98B7,0x98B8,0x98B9,0x98BA,0x98BB,/* 0x58-0x5F */
+	0x98BC,0x98BD,0x98BE,0x98BF,0x98C0,0x98C1,0x98C2,0x98C3,/* 0x60-0x67 */
+	0x98C4,0x98C5,0x98C6,0x98C7,0x98C8,0x98C9,0x98CA,0x98CB,/* 0x68-0x6F */
+	0x98CC,0x98CD,0x98CF,0x98D0,0x98D4,0x98D6,0x98D7,0x98DB,/* 0x70-0x77 */
+	0x98DC,0x98DD,0x98E0,0x98E1,0x98E2,0x98E3,0x98E4,0x0000,/* 0x78-0x7F */
+	
+	0x98E5,0x98E6,0x98E9,0x98EA,0x98EB,0x98EC,0x98ED,0x98EE,/* 0x80-0x87 */
+	0xFA2A,0x98F0,0x98F1,0x98F2,0x98F3,0x98F4,0x98F5,0x98F6,/* 0x88-0x8F */
+	0x98F7,0x98F8,0x98F9,0x98FA,0x98FB,0xFA2B,0x98FD,0x98FE,/* 0x90-0x97 */
+	0x98FF,0x9900,0x9901,0x9902,0x9903,0x9904,0x9905,0x9906,/* 0x98-0x9F */
+	0x9907,0x94E9,0x94EB,0x94EE,0x94EF,0x94F3,0x94F4,0x94F5,/* 0xA0-0xA7 */
+	0x94F7,0x94F9,0x94FC,0x94FD,0x94FF,0x9503,0x9502,0x9506,/* 0xA8-0xAF */
+	0x9507,0x9509,0x950A,0x950D,0x950E,0x950F,0x9512,0x9513,/* 0xB0-0xB7 */
+	0x9514,0x9515,0x9516,0x9518,0x951B,0x951D,0x951E,0x951F,/* 0xB8-0xBF */
+	0x9522,0x952A,0x952B,0x9529,0x952C,0x9531,0x9532,0x9534,/* 0xC0-0xC7 */
+	0x9536,0x9537,0x9538,0x953C,0x953E,0x953F,0x9542,0x9535,/* 0xC8-0xCF */
+	0x9544,0x9545,0x9546,0x9549,0x954C,0x954E,0x954F,0x9552,/* 0xD0-0xD7 */
+	0x9553,0x9554,0x9556,0x9557,0x9558,0x9559,0x955B,0x955E,/* 0xD8-0xDF */
+	0x955F,0x955D,0x9561,0x9562,0x9564,0x9565,0x9566,0x9567,/* 0xE0-0xE7 */
+	0x9568,0x9569,0x956A,0x956B,0x956C,0x956F,0x9571,0x9572,/* 0xE8-0xEF */
+	0x9573,0x953A,0x77E7,0x77EC,0x96C9,0x79D5,0x79ED,0x79E3,/* 0xF0-0xF7 */
+	0x79EB,0x7A06,0x5D47,0x7A03,0x7A02,0x7A1E,0x7A14,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F0[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x9908,0x9909,0x990A,0x990B,0x990C,0x990E,0x990F,0x9911,/* 0x40-0x47 */
+	0x9912,0x9913,0x9914,0x9915,0x9916,0x9917,0x9918,0x9919,/* 0x48-0x4F */
+	0x991A,0x991B,0x991C,0x991D,0x991E,0x991F,0x9920,0x9921,/* 0x50-0x57 */
+	0x9922,0x9923,0x9924,0x9925,0x9926,0x9927,0xFA2C,0x9929,/* 0x58-0x5F */
+	0x992A,0x992B,0x992C,0x992D,0x992F,0x9930,0x9931,0x9932,/* 0x60-0x67 */
+	0x9933,0x9934,0x9935,0x9936,0x9937,0x9938,0x9939,0x993A,/* 0x68-0x6F */
+	0x993B,0x993C,0x993D,0x993E,0x993F,0x9940,0x9941,0x9942,/* 0x70-0x77 */
+	0x9943,0x9944,0x9945,0x9946,0x9947,0x9948,0x9949,0x0000,/* 0x78-0x7F */
+	
+	0x994A,0x994B,0x994C,0x994D,0x994E,0x994F,0x9950,0x9951,/* 0x80-0x87 */
+	0x9952,0x9953,0x9956,0x9957,0x9958,0x9959,0x995A,0x995B,/* 0x88-0x8F */
+	0x995C,0x995D,0x995E,0x995F,0x9960,0x9961,0x9962,0x9964,/* 0x90-0x97 */
+	0x9966,0x9973,0x9978,0x9979,0x997B,0x997E,0x9982,0x9983,/* 0x98-0x9F */
+	0x9989,0x7A39,0x7A37,0x7A51,0x9ECF,0x99A5,0x7A70,0x7688,/* 0xA0-0xA7 */
+	0x768E,0x7693,0x7699,0x76A4,0x74DE,0x74E0,0x752C,0x9E20,/* 0xA8-0xAF */
+	0x9E22,0x9E28,0x9E29,0x9E2A,0x9E2B,0x9E2C,0x9E32,0x9E31,/* 0xB0-0xB7 */
+	0x9E36,0x9E38,0x9E37,0x9E39,0x9E3A,0x9E3E,0x9E41,0x9E42,/* 0xB8-0xBF */
+	0x9E44,0x9E46,0x9E47,0x9E48,0x9E49,0x9E4B,0x9E4C,0x9E4E,/* 0xC0-0xC7 */
+	0x9E51,0x9E55,0x9E57,0x9E5A,0x9E5B,0x9E5C,0x9E5E,0x9E63,/* 0xC8-0xCF */
+	0x9E66,0x9E67,0x9E68,0x9E69,0x9E6A,0x9E6B,0x9E6C,0x9E71,/* 0xD0-0xD7 */
+	0x9E6D,0x9E73,0x7592,0x7594,0x7596,0x75A0,0x759D,0x75AC,/* 0xD8-0xDF */
+	0x75A3,0x75B3,0x75B4,0x75B8,0x75C4,0x75B1,0x75B0,0x75C3,/* 0xE0-0xE7 */
+	0x75C2,0x75D6,0x75CD,0x75E3,0x75E8,0x75E6,0x75E4,0x75EB,/* 0xE8-0xEF */
+	0x75E7,0x7603,0x75F1,0x75FC,0x75FF,0x7610,0x7600,0x7605,/* 0xF0-0xF7 */
+	0x760C,0x7617,0x760A,0x7625,0x7618,0x7615,0x7619,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F1[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x998C,0x998E,0x999A,0x999B,0x999C,0x999D,0x999E,0x999F,/* 0x40-0x47 */
+	0x99A0,0x99A1,0x99A2,0x99A3,0x99A4,0x99A6,0x99A7,0x99A9,/* 0x48-0x4F */
+	0x99AA,0x99AB,0x99AC,0x99AD,0x99AE,0x99AF,0x99B0,0x99B1,/* 0x50-0x57 */
+	0x99B2,0x99B3,0x99B4,0x99B5,0x99B6,0x99B7,0x99B8,0x99B9,/* 0x58-0x5F */
+	0x99BA,0x99BB,0x99BC,0x99BD,0x99BE,0x99BF,0x99C0,0x99C1,/* 0x60-0x67 */
+	0x99C2,0x99C3,0x99C4,0x99C5,0x99C6,0x99C7,0x99C8,0x99C9,/* 0x68-0x6F */
+	0x99CA,0x99CB,0x99CC,0x99CD,0x99CE,0x99CF,0x99D0,0x99D1,/* 0x70-0x77 */
+	0x99D2,0x99D3,0x99D4,0x99D5,0x99D6,0x99D7,0x99D8,0x0000,/* 0x78-0x7F */
+	
+	0x99D9,0x99DA,0x99DB,0x99DC,0x99DD,0x99DE,0x99DF,0x99E0,/* 0x80-0x87 */
+	0x99E1,0x99E2,0x99E3,0x99E4,0x99E5,0x99E6,0x99E7,0x99E8,/* 0x88-0x8F */
+	0x99E9,0x99EA,0x99EB,0x99EC,0x99ED,0x99EE,0x99EF,0x99F0,/* 0x90-0x97 */
+	0xF91A,0x99F2,0x99F3,0x99F4,0x99F5,0x99F6,0x99F7,0x99F8,/* 0x98-0x9F */
+	0x99F9,0x761B,0x763C,0x7622,0x7620,0x7640,0x762D,0x7630,/* 0xA0-0xA7 */
+	0x763F,0x7635,0x7643,0x763E,0x7633,0x764D,0x765E,0x7654,/* 0xA8-0xAF */
+	0x765C,0x7656,0x766B,0x766F,0x7FCA,0x7AE6,0x7A78,0x7A79,/* 0xB0-0xB7 */
+	0x7A80,0x7A86,0x7A88,0x7A95,0x7AA6,0x7AA0,0x7AAC,0x7AA8,/* 0xB8-0xBF */
+	0x7AAD,0x7AB3,0x8864,0x8869,0x8872,0x887D,0x887F,0x8882,/* 0xC0-0xC7 */
+	0x88A2,0x88C6,0x88B7,0x88BC,0x88C9,0x88E2,0x88CE,0x88E3,/* 0xC8-0xCF */
+	0x88E5,0x88F1,0x891A,0x88FC,0x88E8,0x88FE,0x88F0,0x8921,/* 0xD0-0xD7 */
+	0x8919,0x8913,0x891B,0x890A,0x8934,0x892B,0x8936,0x8941,/* 0xD8-0xDF */
+	0x8966,0x897B,0x758B,0x80E5,0x76B2,0x76B4,0x77DC,0x8012,/* 0xE0-0xE7 */
+	0x8014,0x8016,0x801C,0x8020,0x8022,0x8025,0x8026,0x8027,/* 0xE8-0xEF */
+	0x8029,0x8028,0x8031,0x800B,0x8035,0x8043,0xF9B0,0x804D,/* 0xF0-0xF7 */
+	0x8052,0x8069,0x8071,0x8983,0x9878,0x9880,0x9883,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F2[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x99FA,0x99FB,0x99FC,0x99FD,0x99FE,0x99FF,0x9A00,0x9A01,/* 0x40-0x47 */
+	0x9A02,0x9A03,0x9A04,0x9A05,0x9A06,0x9A07,0x9A08,0x9A09,/* 0x48-0x4F */
+	0x9A0A,0x9A0B,0x9A0C,0x9A0D,0x9A0E,0x9A0F,0x9A10,0x9A11,/* 0x50-0x57 */
+	0x9A12,0x9A13,0x9A14,0x9A15,0x9A16,0x9A17,0x9A18,0x9A19,/* 0x58-0x5F */
+	0x9A1A,0x9A1B,0x9A1C,0x9A1D,0x9A1E,0x9A1F,0x9A20,0x9A21,/* 0x60-0x67 */
+	0x9A22,0x9A23,0x9A24,0x9A25,0x9A26,0x9A27,0x9A28,0x9A29,/* 0x68-0x6F */
+	0x9A2A,0x9A2B,0x9A2C,0x9A2D,0x9A2E,0x9A2F,0x9A30,0x9A31,/* 0x70-0x77 */
+	0x9A32,0x9A33,0x9A34,0x9A35,0x9A36,0x9A37,0x9A38,0x0000,/* 0x78-0x7F */
+	
+	0x9A39,0x9A3A,0x9A3B,0x9A3C,0x9A3D,0x9A3E,0x9A3F,0x9A40,/* 0x80-0x87 */
+	0x9A41,0x9A42,0x9A43,0x9A44,0x9A45,0x9A46,0x9A47,0x9A48,/* 0x88-0x8F */
+	0x9A49,0x9A4A,0x9A4B,0x9A4C,0x9A4D,0x9A4E,0x9A4F,0x9A50,/* 0x90-0x97 */
+	0x9A51,0x9A52,0x9A53,0x9A54,0x9A55,0x9A56,0x9A57,0x9A58,/* 0x98-0x9F */
+	0x9A59,0x9889,0x988C,0x988D,0x988F,0x9894,0x989A,0x989B,/* 0xA0-0xA7 */
+	0x989E,0x989F,0x98A1,0x98A2,0x98A5,0x98A6,0x864D,0x8654,/* 0xA8-0xAF */
+	0x866C,0x866E,0x867F,0x867A,0x867C,0x867B,0x86A8,0x868D,/* 0xB0-0xB7 */
+	0x868B,0x86AC,0x869D,0x86A7,0x86A3,0x86AA,0x8693,0x86A9,/* 0xB8-0xBF */
+	0x86B6,0x86C4,0x86B5,0x86CE,0x86B0,0x86BA,0x86B1,0x86AF,/* 0xC0-0xC7 */
+	0x86C9,0x86CF,0x86B4,0x86E9,0x86F1,0x86F2,0x86ED,0x86F3,/* 0xC8-0xCF */
+	0x86D0,0x8713,0x86DE,0x86F4,0x86DF,0x86D8,0x86D1,0x8703,/* 0xD0-0xD7 */
+	0x8707,0x86F8,0x8708,0x870A,0x870D,0x8709,0x8723,0x873B,/* 0xD8-0xDF */
+	0x871E,0x8725,0x872E,0x871A,0x873E,0x8748,0x8734,0x8731,/* 0xE0-0xE7 */
+	0x8729,0x8737,0x873F,0x8782,0x8722,0x877D,0x877E,0x877B,/* 0xE8-0xEF */
+	0x8760,0x8770,0x874C,0x876E,0x878B,0x8753,0x8763,0x877C,/* 0xF0-0xF7 */
+	0x8764,0x8759,0x8765,0x8793,0x87AF,0x87A8,0x87D2,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F3[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x9A5A,0x9A5B,0x9A5C,0x9A5D,0x9A5E,0x9A5F,0x9A60,0x9A61,/* 0x40-0x47 */
+	0x9A62,0x9A63,0x9A64,0x9A65,0x9A66,0x9A67,0x9A68,0x9A69,/* 0x48-0x4F */
+	0xF987,0x9A6B,0x9A72,0x9A83,0x9A89,0x9A8D,0x9A8E,0x9A94,/* 0x50-0x57 */
+	0x9A95,0x9A99,0x9AA6,0x9AA9,0x9AAA,0x9AAB,0x9AAC,0x9AAD,/* 0x58-0x5F */
+	0x9AAE,0x9AAF,0x9AB2,0x9AB3,0x9AB4,0x9AB5,0x9AB9,0x9ABB,/* 0x60-0x67 */
+	0x9ABD,0x9ABE,0x9ABF,0x9AC3,0x9AC4,0x9AC6,0x9AC7,0x9AC8,/* 0x68-0x6F */
+	0x9AC9,0x9ACA,0x9ACD,0x9ACE,0x9ACF,0x9AD0,0x9AD2,0x9AD4,/* 0x70-0x77 */
+	0x9AD5,0x9AD6,0x9AD7,0x9AD9,0x9ADA,0x9ADB,0x9ADC,0x0000,/* 0x78-0x7F */
+	
+	0x9ADD,0x9ADE,0x9AE0,0x9AE2,0x9AE3,0x9AE4,0x9AE5,0x9AE7,/* 0x80-0x87 */
+	0x9AE8,0x9AE9,0x9AEA,0x9AEC,0x9AEE,0x9AF0,0x9AF1,0x9AF2,/* 0x88-0x8F */
+	0x9AF3,0x9AF4,0x9AF5,0x9AF6,0x9AF7,0x9AF8,0x9AFA,0x9AFC,/* 0x90-0x97 */
+	0x9AFD,0x9AFE,0x9AFF,0x9B00,0x9B01,0x9B02,0x9B04,0x9B05,/* 0x98-0x9F */
+	0x9B06,0x87C6,0x8788,0x8785,0x87AD,0x8797,0x8783,0x87AB,/* 0xA0-0xA7 */
+	0x87E5,0x87AC,0x87B5,0x87B3,0x87CB,0x87D3,0x87BD,0x87D1,/* 0xA8-0xAF */
+	0x87C0,0x87CA,0x87DB,0x87EA,0x87E0,0x87EE,0x8816,0x8813,/* 0xB0-0xB7 */
+	0x87FE,0x880A,0x881B,0x8821,0x8839,0x883C,0x7F36,0x7F42,/* 0xB8-0xBF */
+	0x7F44,0x7F45,0x8210,0x7AFA,0x7AFD,0x7B08,0x7B03,0x7B04,/* 0xC0-0xC7 */
+	0x7B15,0x7B0A,0x7B2B,0x7B0F,0x7B47,0x7B38,0x7B2A,0x7B19,/* 0xC8-0xCF */
+	0x7B2E,0x7B31,0xF9F8,0x7B25,0x7B24,0x7B33,0x7B3E,0x7B1E,/* 0xD0-0xD7 */
+	0x7B58,0x7B5A,0x7B45,0x7B75,0x7B4C,0x7B5D,0x7B60,0x7B6E,/* 0xD8-0xDF */
+	0x7B7B,0x7B62,0x7B72,0x7B71,0x7B90,0x7BA6,0x7BA7,0x7BB8,/* 0xE0-0xE7 */
+	0x7BAC,0x7B9D,0x7BA8,0x7B85,0x7BAA,0x7B9C,0x7BA2,0x7BAB,/* 0xE8-0xEF */
+	0x7BB4,0x7BD1,0x7BC1,0x7BCC,0x7BDD,0x7BDA,0x7BE5,0x7BE6,/* 0xF0-0xF7 */
+	0x7BEA,0x7C0C,0x7BFE,0x7BFC,0x7C0F,0x7C16,0x7C0B,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F4[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x9B07,0x9B09,0x9B0A,0x9B0B,0x9B0C,0x9B0D,0x9B0E,0x9B10,/* 0x40-0x47 */
+	0x9B11,0x9B12,0x9B14,0x9B15,0x9B16,0x9B17,0x9B18,0x9B19,/* 0x48-0x4F */
+	0x9B1A,0x9B1B,0x9B1C,0x9B1D,0x9B1E,0x9B20,0x9B21,0x9B22,/* 0x50-0x57 */
+	0x9B24,0x9B25,0x9B26,0x9B27,0x9B28,0x9B29,0x9B2A,0x9B2B,/* 0x58-0x5F */
+	0x9B2C,0x9B2D,0x9B2E,0x9B30,0x9B31,0x9B33,0x9B34,0x9B35,/* 0x60-0x67 */
+	0x9B36,0x9B37,0x9B38,0x9B39,0x9B3A,0x9B3D,0x9B3E,0x9B3F,/* 0x68-0x6F */
+	0x9B40,0x9B46,0x9B4A,0x9B4B,0x9B4C,0x9B4E,0x9B50,0x9B52,/* 0x70-0x77 */
+	0x9B53,0x9B55,0x9B56,0x9B57,0x9B58,0x9B59,0x9B5A,0x0000,/* 0x78-0x7F */
+	
+	0x9B5B,0x9B5C,0x9B5D,0x9B5E,0x9B5F,0x9B60,0x9B61,0x9B62,/* 0x80-0x87 */
+	0x9B63,0x9B64,0x9B65,0x9B66,0x9B67,0x9B68,0x9B69,0x9B6A,/* 0x88-0x8F */
+	0x9B6B,0x9B6C,0x9B6D,0x9B6E,0xF939,0x9B70,0x9B71,0x9B72,/* 0x90-0x97 */
+	0x9B73,0x9B74,0x9B75,0x9B76,0x9B77,0x9B78,0x9B79,0x9B7A,/* 0x98-0x9F */
+	0x9B7B,0x7C1F,0x7C2A,0x7C26,0x7C38,0x7C41,0x7C40,0x81FE,/* 0xA0-0xA7 */
+	0x8201,0x8202,0x8204,0x81EC,0x8844,0x8221,0x8222,0x8223,/* 0xA8-0xAF */
+	0x822D,0x822F,0x8228,0x822B,0x8238,0x823B,0x8233,0x8234,/* 0xB0-0xB7 */
+	0x823E,0x8244,0x8249,0x824B,0x824F,0x825A,0x825F,0x8268,/* 0xB8-0xBF */
+	0x887E,0x8885,0x8888,0x88D8,0x88DF,0x895E,0x7F9D,0x7F9F,/* 0xC0-0xC7 */
+	0x7FA7,0x7FAF,0x7FB0,0x7FB2,0x7C7C,0x6549,0x7C91,0x7C9D,/* 0xC8-0xCF */
+	0x7C9C,0x7C9E,0x7CA2,0x7CB2,0x7CBC,0x7CBD,0x7CC1,0x7CC7,/* 0xD0-0xD7 */
+	0x7CCC,0x7CCD,0x7CC8,0x7CC5,0x7CD7,0x7CE8,0x826E,0x66A8,/* 0xD8-0xDF */
+	0x7FBF,0x7FCE,0x7FD5,0x7FE5,0x7FE1,0x7FE6,0x7FE9,0x7FEE,/* 0xE0-0xE7 */
+	0x7FF3,0x7CF8,0x7D77,0x7DA6,0x7DAE,0x7E47,0x7E9B,0x9EB8,/* 0xE8-0xEF */
+	0x9EB4,0x8D73,0x8D84,0x8D94,0x8D91,0x8DB1,0x8D67,0x8D6D,/* 0xF0-0xF7 */
+	0x8C47,0x8C49,0x914A,0x9150,0x914E,0x914F,0x9164,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F5[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x9B7C,0x9B7D,0x9B7E,0x9B7F,0x9B80,0x9B81,0x9B82,0x9B83,/* 0x40-0x47 */
+	0x9B84,0x9B85,0x9B86,0x9B87,0x9B88,0x9B89,0x9B8A,0x9B8B,/* 0x48-0x4F */
+	0x9B8C,0x9B8D,0x9B8E,0x9B8F,0x9B90,0x9B91,0x9B92,0x9B93,/* 0x50-0x57 */
+	0x9B94,0x9B95,0x9B96,0x9B97,0x9B98,0x9B99,0x9B9A,0x9B9B,/* 0x58-0x5F */
+	0x9B9C,0x9B9D,0x9B9E,0x9B9F,0x9BA0,0x9BA1,0x9BA2,0x9BA3,/* 0x60-0x67 */
+	0x9BA4,0x9BA5,0x9BA6,0x9BA7,0x9BA8,0x9BA9,0x9BAA,0x9BAB,/* 0x68-0x6F */
+	0x9BAC,0x9BAD,0x9BAE,0x9BAF,0x9BB0,0x9BB1,0x9BB2,0x9BB3,/* 0x70-0x77 */
+	0x9BB4,0x9BB5,0x9BB6,0x9BB7,0x9BB8,0x9BB9,0x9BBA,0x0000,/* 0x78-0x7F */
+	
+	0x9BBB,0x9BBC,0x9BBD,0x9BBE,0x9BBF,0x9BC0,0x9BC1,0x9BC2,/* 0x80-0x87 */
+	0x9BC3,0x9BC4,0x9BC5,0x9BC6,0x9BC7,0x9BC8,0x9BC9,0x9BCA,/* 0x88-0x8F */
+	0x9BCB,0x9BCC,0x9BCD,0x9BCE,0x9BCF,0x9BD0,0x9BD1,0x9BD2,/* 0x90-0x97 */
+	0x9BD3,0x9BD4,0x9BD5,0x9BD6,0x9BD7,0x9BD8,0x9BD9,0x9BDA,/* 0x98-0x9F */
+	0x9BDB,0x9162,0x9161,0x9170,0x9169,0x916F,0x917D,0x917E,/* 0xA0-0xA7 */
+	0x9172,0x9174,0x9179,0x918C,0x9185,0x9190,0x918D,0x9191,/* 0xA8-0xAF */
+	0x91A2,0x91A3,0x91AA,0x91AD,0x91AE,0x91AF,0x91B5,0xF9B7,/* 0xB0-0xB7 */
+	0x91BA,0x8C55,0x9E7E,0x8DB8,0x8DEB,0x8E05,0x8E59,0x8E69,/* 0xB8-0xBF */
+	0x8DB5,0x8DBF,0x8DBC,0x8DBA,0x8DC4,0x8DD6,0x8DD7,0x8DDA,/* 0xC0-0xC7 */
+	0x8DDE,0x8DCE,0x8DCF,0x8DDB,0x8DC6,0x8DEC,0x8DF7,0x8DF8,/* 0xC8-0xCF */
+	0x8DE3,0x8DF9,0x8DFB,0x8DE4,0x8E09,0x8DFD,0x8E14,0x8E1D,/* 0xD0-0xD7 */
+	0x8E1F,0x8E2C,0x8E2E,0x8E23,0x8E2F,0x8E3A,0x8E40,0x8E39,/* 0xD8-0xDF */
+	0x8E35,0x8E3D,0x8E31,0x8E49,0x8E41,0x8E42,0x8E51,0x8E52,/* 0xE0-0xE7 */
+	0x8E4A,0x8E70,0x8E76,0x8E7C,0x8E6F,0x8E74,0x8E85,0x8E8F,/* 0xE8-0xEF */
+	0x8E94,0x8E90,0x8E9C,0x8E9E,0x8C78,0x8C82,0x8C8A,0x8C85,/* 0xF0-0xF7 */
+	0x8C98,0x8C94,0x659B,0x89D6,0x89DE,0x89DA,0x89DC,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F6[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x9BDC,0x9BDD,0x9BDE,0x9BDF,0x9BE0,0x9BE1,0x9BE2,0x9BE3,/* 0x40-0x47 */
+	0x9BE4,0x9BE5,0x9BE6,0x9BE7,0x9BE8,0x9BE9,0x9BEA,0x9BEB,/* 0x48-0x4F */
+	0x9BEC,0x9BED,0x9BEE,0x9BEF,0x9BF0,0x9BF1,0x9BF2,0x9BF3,/* 0x50-0x57 */
+	0x9BF4,0x9BF5,0x9BF6,0x9BF7,0x9BF8,0x9BF9,0x9BFA,0x9BFB,/* 0x58-0x5F */
+	0x9BFC,0x9BFD,0x9BFE,0x9BFF,0x9C00,0x9C01,0x9C02,0x9C03,/* 0x60-0x67 */
+	0x9C04,0x9C05,0x9C06,0x9C07,0x9C08,0x9C09,0x9C0A,0x9C0B,/* 0x68-0x6F */
+	0x9C0C,0x9C0D,0x9C0E,0x9C0F,0x9C10,0x9C11,0x9C12,0x9C13,/* 0x70-0x77 */
+	0x9C14,0x9C15,0x9C16,0x9C17,0x9C18,0x9C19,0x9C1A,0x0000,/* 0x78-0x7F */
+	
+	0x9C1B,0x9C1C,0x9C1D,0x9C1E,0x9C1F,0x9C20,0x9C21,0x9C22,/* 0x80-0x87 */
+	0x9C23,0x9C24,0x9C25,0x9C26,0x9C27,0x9C28,0x9C29,0x9C2A,/* 0x88-0x8F */
+	0x9C2B,0x9C2C,0x9C2D,0x9C2E,0x9C2F,0x9C30,0x9C31,0x9C32,/* 0x90-0x97 */
+	0x9C33,0x9C34,0x9C35,0x9C36,0x9C37,0x9C38,0x9C39,0x9C3A,/* 0x98-0x9F */
+	0x9C3B,0x89E5,0x89EB,0x89EF,0x8A3E,0x8B26,0x9753,0x96E9,/* 0xA0-0xA7 */
+	0x96F3,0x96EF,0x9706,0x9701,0x9708,0x970F,0x970E,0x972A,/* 0xA8-0xAF */
+	0x972D,0x9730,0x973E,0x9F80,0x9F83,0x9F85,0x9F86,0x9F87,/* 0xB0-0xB7 */
+	0x9F88,0x9F89,0x9F8A,0x9F8C,0x9EFE,0x9F0B,0x9F0D,0x96B9,/* 0xB8-0xBF */
+	0x96BC,0x96BD,0x96CE,0x96D2,0x77BF,0x96E0,0x928E,0x92AE,/* 0xC0-0xC7 */
+	0x92C8,0x933E,0x936A,0x93CA,0x938F,0x943E,0x946B,0x9C7F,/* 0xC8-0xCF */
+	0x9C82,0x9C85,0x9C86,0x9C87,0x9C88,0x7A23,0x9C8B,0x9C8E,/* 0xD0-0xD7 */
+	0x9C90,0x9C91,0x9C92,0x9C94,0x9C95,0x9C9A,0x9C9B,0x9C9E,/* 0xD8-0xDF */
+	0x9C9F,0x9CA0,0x9CA1,0x9CA2,0x9CA3,0x9CA5,0x9CA6,0x9CA7,/* 0xE0-0xE7 */
+	0x9CA8,0x9CA9,0x9CAB,0x9CAD,0x9CAE,0x9CB0,0x9CB1,0x9CB2,/* 0xE8-0xEF */
+	0x9CB3,0x9CB4,0x9CB5,0x9CB6,0x9CB7,0x9CBA,0x9CBB,0x9CBC,/* 0xF0-0xF7 */
+	0x9CBD,0x9CC4,0x9CC5,0x9CC6,0x9CC7,0x9CCA,0x9CCB,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F7[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x9C3C,0x9C3D,0x9C3E,0x9C3F,0x9C40,0x9C41,0x9C42,0x9C43,/* 0x40-0x47 */
+	0x9C44,0x9C45,0x9C46,0x9C47,0x9C48,0x9C49,0x9C4A,0x9C4B,/* 0x48-0x4F */
+	0x9C4C,0x9C4D,0x9C4E,0x9C4F,0x9C50,0x9C51,0x9C52,0x9C53,/* 0x50-0x57 */
+	0x9C54,0x9C55,0x9C56,0xF9F2,0x9C58,0x9C59,0x9C5A,0x9C5B,/* 0x58-0x5F */
+	0x9C5C,0x9C5D,0x9C5E,0x9C5F,0x9C60,0x9C61,0x9C62,0x9C63,/* 0x60-0x67 */
+	0x9C64,0x9C65,0x9C66,0x9C67,0x9C68,0x9C69,0x9C6A,0x9C6B,/* 0x68-0x6F */
+	0x9C6C,0x9C6D,0x9C6E,0x9C6F,0x9C70,0x9C71,0x9C72,0x9C73,/* 0x70-0x77 */
+	0x9C74,0x9C75,0x9C76,0x9C77,0x9C78,0x9C79,0x9C7A,0x0000,/* 0x78-0x7F */
+	
+	0x9C7B,0x9C7D,0x9C7E,0x9C80,0x9C83,0x9C84,0x9C89,0x9C8A,/* 0x80-0x87 */
+	0x9C8C,0x9C8F,0x9C93,0x9C96,0x9C97,0x9C98,0x9C99,0x9C9D,/* 0x88-0x8F */
+	0x9CAA,0x9CAC,0x9CAF,0x9CB9,0x9CBE,0x9CBF,0x9CC0,0x9CC1,/* 0x90-0x97 */
+	0x9CC2,0x9CC8,0x9CC9,0x9CD1,0x9CD2,0x9CDA,0x9CDB,0x9CE0,/* 0x98-0x9F */
+	0x9CE1,0x9CCC,0x9CCD,0x9CCE,0x9CCF,0x9CD0,0x9CD3,0x9CD4,/* 0xA0-0xA7 */
+	0x9CD5,0x9CD7,0x9CD8,0x9CD9,0x9CDC,0x9CDD,0x9CDF,0x9CE2,/* 0xA8-0xAF */
+	0x977C,0x9785,0x9791,0x9792,0x9794,0x97AF,0x97AB,0x97A3,/* 0xB0-0xB7 */
+	0x97B2,0x97B4,0x9AB1,0x9AB0,0x9AB7,0x9E58,0x9AB6,0x9ABA,/* 0xB8-0xBF */
+	0x9ABC,0x9AC1,0x9AC0,0x9AC5,0x9AC2,0x9ACB,0x9ACC,0x9AD1,/* 0xC0-0xC7 */
+	0x9B45,0x9B43,0x9B47,0x9B49,0x9B48,0x9B4D,0x9B51,0x98E8,/* 0xC8-0xCF */
+	0x990D,0x992E,0x9955,0x9954,0x9ADF,0x9AE1,0x9AE6,0x9AEF,/* 0xD0-0xD7 */
+	0x9AEB,0x9AFB,0x9AED,0x9AF9,0x9B08,0x9B0F,0x9B13,0x9B1F,/* 0xD8-0xDF */
+	0x9B23,0x9EBD,0x9EBE,0x7E3B,0x9E82,0x9E87,0x9E88,0x9E8B,/* 0xE0-0xE7 */
+	0x9E92,0x93D6,0x9E9D,0xF9F3,0x9EDB,0x9EDC,0x9EDD,0x9EE0,/* 0xE8-0xEF */
+	0x9EDF,0x9EE2,0x9EE9,0x9EE7,0x9EE5,0x9EEA,0x9EEF,0x9F22,/* 0xF0-0xF7 */
+	0x9F2C,0x9F2F,0x9F39,0x9F37,0x9F3D,0x9F3E,0x9F44,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F8[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x9CE3,0x9CE4,0x9CE5,0x9CE6,0x9CE7,0x9CE8,0x9CE9,0x9CEA,/* 0x40-0x47 */
+	0x9CEB,0x9CEC,0x9CED,0x9CEE,0x9CEF,0x9CF0,0x9CF1,0x9CF2,/* 0x48-0x4F */
+	0x9CF3,0x9CF4,0x9CF5,0x9CF6,0x9CF7,0x9CF8,0x9CF9,0x9CFA,/* 0x50-0x57 */
+	0x9CFB,0x9CFC,0x9CFD,0x9CFE,0x9CFF,0x9D00,0x9D01,0x9D02,/* 0x58-0x5F */
+	0x9D03,0x9D04,0x9D05,0x9D06,0x9D07,0x9D08,0x9D09,0x9D0A,/* 0x60-0x67 */
+	0x9D0B,0x9D0C,0x9D0D,0x9D0E,0x9D0F,0x9D10,0x9D11,0x9D12,/* 0x68-0x6F */
+	0x9D13,0x9D14,0x9D15,0x9D16,0x9D17,0x9D18,0x9D19,0x9D1A,/* 0x70-0x77 */
+	0x9D1B,0x9D1C,0x9D1D,0x9D1E,0x9D1F,0x9D20,0x9D21,0x0000,/* 0x78-0x7F */
+	
+	0x9D22,0x9D23,0x9D24,0x9D25,0x9D26,0x9D27,0x9D28,0x9D29,/* 0x80-0x87 */
+	0x9D2A,0x9D2B,0x9D2C,0x9D2D,0x9D2E,0x9D2F,0x9D30,0x9D31,/* 0x88-0x8F */
+	0x9D32,0x9D33,0x9D34,0x9D35,0x9D36,0x9D37,0x9D38,0x9D39,/* 0x90-0x97 */
+	0x9D3A,0x9D3B,0x9D3C,0x9D3D,0x9D3E,0x9D3F,0x9D40,0x9D41,/* 0x98-0x9F */
+	0x9D42,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xA0-0xA7 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xA8-0xAF */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xB0-0xB7 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xB8-0xBF */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xC0-0xC7 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xC8-0xCF */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xD0-0xD7 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xD8-0xDF */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xE0-0xE7 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xE8-0xEF */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xF0-0xF7 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F9[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x9D43,0x9D44,0x9D45,0x9D46,0x9D47,0x9D48,0x9D49,0x9D4A,/* 0x40-0x47 */
+	0x9D4B,0x9D4C,0x9D4D,0x9D4E,0x9D4F,0x9D50,0x9D51,0x9D52,/* 0x48-0x4F */
+	0x9D53,0x9D54,0x9D55,0x9D56,0x9D57,0x9D58,0x9D59,0x9D5A,/* 0x50-0x57 */
+	0x9D5B,0x9D5C,0x9D5D,0x9D5E,0x9D5F,0x9D60,0x9D61,0x9D62,/* 0x58-0x5F */
+	0x9D63,0x9D64,0x9D65,0x9D66,0x9D67,0x9D68,0x9D69,0x9D6A,/* 0x60-0x67 */
+	0x9D6B,0x9D6C,0x9D6D,0x9D6E,0x9D6F,0x9D70,0x9D71,0x9D72,/* 0x68-0x6F */
+	0x9D73,0x9D74,0x9D75,0x9D76,0x9D77,0x9D78,0x9D79,0x9D7A,/* 0x70-0x77 */
+	0x9D7B,0x9D7C,0x9D7D,0x9D7E,0x9D7F,0x9D80,0x9D81,0x0000,/* 0x78-0x7F */
+	
+	0x9D82,0x9D83,0x9D84,0x9D85,0x9D86,0x9D87,0x9D88,0x9D89,/* 0x80-0x87 */
+	0x9D8A,0x9D8B,0x9D8C,0x9D8D,0x9D8E,0x9D8F,0x9D90,0x9D91,/* 0x88-0x8F */
+	0x9D92,0x9D93,0x9D94,0x9D95,0x9D96,0x9D97,0x9D98,0x9D99,/* 0x90-0x97 */
+	0x9D9A,0x9D9B,0x9D9C,0x9D9D,0x9D9E,0x9D9F,0x9DA0,0x9DA1,/* 0x98-0x9F */
+	0x9DA2,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xA0-0xA7 */
+};
+
+static wchar_t c2u_FA[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x9DA3,0x9DA4,0x9DA5,0x9DA6,0x9DA7,0x9DA8,0x9DA9,0x9DAA,/* 0x40-0x47 */
+	0x9DAB,0x9DAC,0x9DAD,0x9DAE,0x9DAF,0x9DB0,0x9DB1,0x9DB2,/* 0x48-0x4F */
+	0x9DB3,0xFA2D,0x9DB5,0x9DB6,0x9DB7,0x9DB8,0x9DB9,0x9DBA,/* 0x50-0x57 */
+	0x9DBB,0x9DBC,0x9DBD,0x9DBE,0x9DBF,0x9DC0,0x9DC1,0x9DC2,/* 0x58-0x5F */
+	0x9DC3,0x9DC4,0x9DC5,0x9DC6,0x9DC7,0x9DC8,0x9DC9,0x9DCA,/* 0x60-0x67 */
+	0x9DCB,0x9DCC,0x9DCD,0x9DCE,0x9DCF,0x9DD0,0x9DD1,0x9DD2,/* 0x68-0x6F */
+	0x9DD3,0x9DD4,0x9DD5,0x9DD6,0x9DD7,0x9DD8,0x9DD9,0x9DDA,/* 0x70-0x77 */
+	0x9DDB,0x9DDC,0x9DDD,0x9DDE,0x9DDF,0x9DE0,0x9DE1,0x0000,/* 0x78-0x7F */
+	
+	0x9DE2,0x9DE3,0x9DE4,0x9DE5,0x9DE6,0x9DE7,0x9DE8,0x9DE9,/* 0x80-0x87 */
+	0x9DEA,0x9DEB,0x9DEC,0x9DED,0x9DEE,0x9DEF,0x9DF0,0x9DF1,/* 0x88-0x8F */
+	0x9DF2,0x9DF3,0x9DF4,0x9DF5,0x9DF6,0x9DF7,0x9DF8,0x9DF9,/* 0x90-0x97 */
+	0xF93A,0x9DFB,0x9DFC,0x9DFD,0x9DFE,0x9DFF,0x9E00,0x9E01,/* 0x98-0x9F */
+	0x9E02,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xA0-0xA7 */
+};
+
+static wchar_t c2u_FB[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x9E03,0x9E04,0x9E05,0x9E06,0x9E07,0x9E08,0x9E09,0x9E0A,/* 0x40-0x47 */
+	0x9E0B,0x9E0C,0x9E0D,0x9E0E,0x9E0F,0x9E10,0x9E11,0x9E12,/* 0x48-0x4F */
+	0x9E13,0x9E14,0x9E15,0x9E16,0x9E17,0x9E18,0x9E19,0x9E1A,/* 0x50-0x57 */
+	0x9E1B,0x9E1C,0x9E1D,0xF920,0x9E24,0x9E27,0x9E2E,0x9E30,/* 0x58-0x5F */
+	0x9E34,0x9E3B,0x9E3C,0x9E40,0x9E4D,0x9E50,0x9E52,0x9E53,/* 0x60-0x67 */
+	0x9E54,0x9E56,0x9E59,0x9E5D,0x9E5F,0x9E60,0x9E61,0x9E62,/* 0x68-0x6F */
+	0x9E65,0x9E6E,0x9E6F,0x9E72,0x9E74,0x9E75,0x9E76,0x9E77,/* 0x70-0x77 */
+	0x9E78,0x9E79,0x9E7A,0x9E7B,0x9E7C,0x9E7D,0x9E80,0x0000,/* 0x78-0x7F */
+	
+	0x9E81,0x9E83,0x9E84,0x9E85,0x9E86,0x9E89,0x9E8A,0x9E8C,/* 0x80-0x87 */
+	0x9E8D,0x9E8E,0x9E8F,0x9E90,0x9E91,0x9E94,0x9E95,0x9E96,/* 0x88-0x8F */
+	0xF988,0x9E98,0x9E99,0x9E9A,0x9E9B,0x9E9C,0x9E9E,0x9EA0,/* 0x90-0x97 */
+	0x9EA1,0x9EA2,0x9EA3,0x9EA4,0x9EA5,0x9EA7,0x9EA8,0x9EA9,/* 0x98-0x9F */
+	0x9EAA,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xA0-0xA7 */
+};
+
+static wchar_t c2u_FC[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x9EAB,0x9EAC,0x9EAD,0x9EAE,0x9EAF,0x9EB0,0x9EB1,0x9EB2,/* 0x40-0x47 */
+	0x9EB3,0x9EB5,0x9EB6,0x9EB7,0x9EB9,0x9EBA,0x9EBC,0x9EBF,/* 0x48-0x4F */
+	0x9EC0,0x9EC1,0x9EC2,0x9EC3,0x9EC5,0x9EC6,0x9EC7,0x9EC8,/* 0x50-0x57 */
+	0x9ECA,0x9ECB,0x9ECC,0x9ED0,0x9ED2,0x9ED3,0x9ED5,0x9ED6,/* 0x58-0x5F */
+	0x9ED7,0x9ED9,0x9EDA,0x9EDE,0x9EE1,0x9EE3,0x9EE4,0x9EE6,/* 0x60-0x67 */
+	0x9EE8,0x9EEB,0x9EEC,0x9EED,0x9EEE,0x9EF0,0x9EF1,0x9EF2,/* 0x68-0x6F */
+	0x9EF3,0x9EF4,0x9EF5,0x9EF6,0x9EF7,0x9EF8,0x9EFA,0x9EFD,/* 0x70-0x77 */
+	0x9EFF,0x9F00,0x9F01,0x9F02,0x9F03,0x9F04,0x9F05,0x0000,/* 0x78-0x7F */
+	
+	0x9F06,0x9F07,0x9F08,0x9F09,0x9F0A,0x9F0C,0x9F0F,0x9F11,/* 0x80-0x87 */
+	0x9F12,0x9F14,0x9F15,0x9F16,0x9F18,0x9F1A,0x9F1B,0x9F1C,/* 0x88-0x8F */
+	0x9F1D,0x9F1E,0x9F1F,0x9F21,0x9F23,0x9F24,0x9F25,0x9F26,/* 0x90-0x97 */
+	0x9F27,0x9F28,0x9F29,0x9F2A,0x9F2B,0x9F2D,0x9F2E,0x9F30,/* 0x98-0x9F */
+	0x9F31,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xA0-0xA7 */
+};
+
+static wchar_t c2u_FD[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x9F32,0x9F33,0x9F34,0x9F35,0x9F36,0x9F38,0x9F3A,0x9F3C,/* 0x40-0x47 */
+	0x9F3F,0x9F40,0x9F41,0x9F42,0x9F43,0x9F45,0x9F46,0x9F47,/* 0x48-0x4F */
+	0x9F48,0x9F49,0x9F4A,0x9F4B,0x9F4C,0x9F4D,0x9F4E,0x9F4F,/* 0x50-0x57 */
+	0x9F52,0x9F53,0x9F54,0x9F55,0x9F56,0x9F57,0x9F58,0x9F59,/* 0x58-0x5F */
+	0x9F5A,0x9F5B,0x9F5C,0x9F5D,0x9F5E,0x9F5F,0x9F60,0x9F61,/* 0x60-0x67 */
+	0x9F62,0x9F63,0x9F64,0x9F65,0x9F66,0x9F67,0x9F68,0x9F69,/* 0x68-0x6F */
+	0x9F6A,0x9F6B,0x9F6C,0x9F6D,0x9F6E,0x9F6F,0x9F70,0x9F71,/* 0x70-0x77 */
+	0x9F72,0x9F73,0x9F74,0x9F75,0x9F76,0x9F77,0x9F78,0x0000,/* 0x78-0x7F */
+	
+	0x9F79,0x9F7A,0x9F7B,0x9F7C,0x9F7D,0x9F7E,0x9F81,0x9F82,/* 0x80-0x87 */
+	0xF9C4,0x9F8E,0x9F8F,0x9F90,0x9F91,0x9F92,0x9F93,0x9F94,/* 0x88-0x8F */
+	0x9F95,0x9F96,0x9F97,0x9F98,0xF908,0x9F9D,0x9F9E,0x9FA1,/* 0x90-0x97 */
+	0x9FA2,0x9FA3,0x9FA4,0x9FA5,0xF92C,0xF979,0xF995,0xF9E7,/* 0x98-0x9F */
+	0xF9F1,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xA0-0xA7 */
+};
+
+static wchar_t c2u_FE[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0xFA0C,0xFA0D,0xFA0E,0xFA0F,0xFA11,0xFA13,0xFA14,0xFA18,/* 0x40-0x47 */
+	0xFA1F,0xFA20,0xFA21,0xFA23,0xFA24,0xFA27,0xFA28,0xFA29,/* 0x48-0x4F */
+};
+
+static wchar_t *page_charset2uni[256] = {
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   c2u_81, c2u_82, c2u_83, c2u_84, c2u_85, c2u_86, c2u_87, 
+	c2u_88, c2u_89, c2u_8A, c2u_8B, c2u_8C, c2u_8D, c2u_8E, c2u_8F, 
+	c2u_90, c2u_91, c2u_92, c2u_93, c2u_94, c2u_95, c2u_96, c2u_97, 
+	c2u_98, c2u_99, c2u_9A, c2u_9B, c2u_9C, c2u_9D, c2u_9E, c2u_9F, 
+	c2u_A0, c2u_A1, c2u_A2, c2u_A3, c2u_A4, c2u_A5, c2u_A6, c2u_A7, 
+	c2u_A8, c2u_A9, c2u_AA, c2u_AB, c2u_AC, c2u_AD, c2u_AE, c2u_AF, 
+	c2u_B0, c2u_B1, c2u_B2, c2u_B3, c2u_B4, c2u_B5, c2u_B6, c2u_B7, 
+	c2u_B8, c2u_B9, c2u_BA, c2u_BB, c2u_BC, c2u_BD, c2u_BE, c2u_BF, 
+	c2u_C0, c2u_C1, c2u_C2, c2u_C3, c2u_C4, c2u_C5, c2u_C6, c2u_C7, 
+	c2u_C8, c2u_C9, c2u_CA, c2u_CB, c2u_CC, c2u_CD, c2u_CE, c2u_CF, 
+	c2u_D0, c2u_D1, c2u_D2, c2u_D3, c2u_D4, c2u_D5, c2u_D6, c2u_D7, 
+	c2u_D8, c2u_D9, c2u_DA, c2u_DB, c2u_DC, c2u_DD, c2u_DE, c2u_DF, 
+	c2u_E0, c2u_E1, c2u_E2, c2u_E3, c2u_E4, c2u_E5, c2u_E6, c2u_E7, 
+	c2u_E8, c2u_E9, c2u_EA, c2u_EB, c2u_EC, c2u_ED, c2u_EE, c2u_EF, 
+	c2u_F0, c2u_F1, c2u_F2, c2u_F3, c2u_F4, c2u_F5, c2u_F6, c2u_F7, 
+	c2u_F8, c2u_F9, c2u_FA, c2u_FB, c2u_FC, c2u_FD, c2u_FE, NULL,   
+};
+
+static unsigned char u2c_01[512] = {
+	0xA8, 0xA1, 0xA8, 0xA1, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0xA8, 0xA5, 0xA8, 0xA5, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0xA8, 0xA7, 0xA8, 0xA7, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xA8, 0xA9, 0xA8, 0xA9, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0xA8, 0xBD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0xA8, 0xBE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0xA8, 0xAD, 0xA8, 0xAD, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0xA8, 0xB1, 0xA8, 0xB1, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0xA1, 0xCE, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0xA8, 0xA3, 0xA8, 0xA3, 0xA8, 0xAB, /* 0xCC-0xCF */
+	0xA8, 0xAB, 0xA8, 0xAF, 0xA8, 0xAF, 0xA8, 0xB3, /* 0xD0-0xD3 */
+	0xA8, 0xB3, 0xA8, 0xB5, 0xA8, 0xB5, 0xA8, 0xB6, /* 0xD4-0xD7 */
+	0xA8, 0xB6, 0xA8, 0xB7, 0xA8, 0xB7, 0xA8, 0xB8, /* 0xD8-0xDB */
+	0xA8, 0xB8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+};
+
+static unsigned char u2c_02[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0xA8, 0xBB, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0xA8, 0xC0, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA1, 0xA6, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xA1, 0xA5, 0xA8, 0x40, 0xA8, 0x41, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xA8, 0x42, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+};
+
+static unsigned char u2c_03[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0xA6, 0xA1, 0xA6, 0xA2, 0xA6, 0xA3, /* 0x90-0x93 */
+	0xA6, 0xA4, 0xA6, 0xA5, 0xA6, 0xA6, 0xA6, 0xA7, /* 0x94-0x97 */
+	0xA6, 0xA8, 0xA6, 0xA9, 0xA6, 0xAA, 0xA6, 0xAB, /* 0x98-0x9B */
+	0xA6, 0xAC, 0xA6, 0xAD, 0xA6, 0xAE, 0xA6, 0xAF, /* 0x9C-0x9F */
+	0xA6, 0xB0, 0xA6, 0xB1, 0x00, 0x00, 0xA6, 0xB2, /* 0xA0-0xA3 */
+	0xA6, 0xB3, 0xA6, 0xB4, 0xA6, 0xB5, 0xA6, 0xB6, /* 0xA4-0xA7 */
+	0xA6, 0xB7, 0xA6, 0xB8, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0xA6, 0xC1, 0xA6, 0xC2, 0xA6, 0xC3, /* 0xB0-0xB3 */
+	0xA6, 0xC4, 0xA6, 0xC5, 0xA6, 0xC6, 0xA6, 0xC7, /* 0xB4-0xB7 */
+	0xA6, 0xC8, 0xA6, 0xC9, 0xA6, 0xCA, 0xA6, 0xCB, /* 0xB8-0xBB */
+	0xA6, 0xCC, 0xA6, 0xCD, 0xA6, 0xCE, 0xA6, 0xCF, /* 0xBC-0xBF */
+	0xA6, 0xD0, 0xA6, 0xD1, 0x00, 0x00, 0xA6, 0xD2, /* 0xC0-0xC3 */
+	0xA6, 0xD3, 0xA6, 0xD4, 0xA6, 0xD5, 0xA6, 0xD6, /* 0xC4-0xC7 */
+	0xA6, 0xD7, 0xA6, 0xD8, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+};
+
+static unsigned char u2c_04[512] = {
+	0x00, 0x00, 0xA7, 0xA7, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0xA7, 0xA1, 0xA7, 0xA2, 0xA7, 0xA3, 0xA7, 0xA4, /* 0x10-0x13 */
+	0xA7, 0xA5, 0xA7, 0xA6, 0xA7, 0xA8, 0xA7, 0xA9, /* 0x14-0x17 */
+	0xA7, 0xAA, 0xA7, 0xAB, 0xA7, 0xAC, 0xA7, 0xAD, /* 0x18-0x1B */
+	0xA7, 0xAE, 0xA7, 0xAF, 0xA7, 0xB0, 0xA7, 0xB1, /* 0x1C-0x1F */
+	0xA7, 0xB2, 0xA7, 0xB3, 0xA7, 0xB4, 0xA7, 0xB5, /* 0x20-0x23 */
+	0xA7, 0xB6, 0xA7, 0xB7, 0xA7, 0xB8, 0xA7, 0xB9, /* 0x24-0x27 */
+	0xA7, 0xBA, 0xA7, 0xBB, 0xA7, 0xBC, 0xA7, 0xBD, /* 0x28-0x2B */
+	0xA7, 0xBE, 0xA7, 0xBF, 0xA7, 0xC0, 0xA7, 0xC1, /* 0x2C-0x2F */
+	0xA7, 0xD1, 0xA7, 0xD2, 0xA7, 0xD3, 0xA7, 0xD4, /* 0x30-0x33 */
+	0xA7, 0xD5, 0xA7, 0xD6, 0xA7, 0xD8, 0xA7, 0xD9, /* 0x34-0x37 */
+	0xA7, 0xDA, 0xA7, 0xDB, 0xA7, 0xDC, 0xA7, 0xDD, /* 0x38-0x3B */
+	0xA7, 0xDE, 0xA7, 0xDF, 0xA7, 0xE0, 0xA7, 0xE1, /* 0x3C-0x3F */
+	0xA7, 0xE2, 0xA7, 0xE3, 0xA7, 0xE4, 0xA7, 0xE5, /* 0x40-0x43 */
+	0xA7, 0xE6, 0xA7, 0xE7, 0xA7, 0xE8, 0xA7, 0xE9, /* 0x44-0x47 */
+	0xA7, 0xEA, 0xA7, 0xEB, 0xA7, 0xEC, 0xA7, 0xED, /* 0x48-0x4B */
+	0xA7, 0xEE, 0xA7, 0xEF, 0xA7, 0xF0, 0xA7, 0xF1, /* 0x4C-0x4F */
+	0x00, 0x00, 0xA7, 0xD7, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+};
+
+static unsigned char u2c_20[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0xA9, 0x5C, 0x00, 0x00, 0x00, 0x00, 0xA8, 0x43, /* 0x10-0x13 */
+	0xA1, 0xAA, 0xA8, 0x44, 0xA1, 0xAC, 0x00, 0x00, /* 0x14-0x17 */
+	0xA1, 0xAE, 0xA1, 0xAF, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0xA1, 0xB0, 0xA1, 0xB1, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0xA8, 0x45, 0xA1, 0xAD, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xA1, 0xEB, 0x00, 0x00, 0xA1, 0xE4, 0xA1, 0xE5, /* 0x30-0x33 */
+	0x00, 0x00, 0xA8, 0x46, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA1, 0xF9, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0xA3, 0xFE, 0x00, 0x00, /* 0x3C-0x3F */
+};
+
+static unsigned char u2c_21[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA1, 0xE6, /* 0x00-0x03 */
+	0x00, 0x00, 0xA8, 0x47, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xA8, 0x48, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xA1, 0xED, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0xA9, 0x59, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0xA2, 0xF1, 0xA2, 0xF2, 0xA2, 0xF3, 0xA2, 0xF4, /* 0x60-0x63 */
+	0xA2, 0xF5, 0xA2, 0xF6, 0xA2, 0xF7, 0xA2, 0xF8, /* 0x64-0x67 */
+	0xA2, 0xF9, 0xA2, 0xFA, 0xA2, 0xFB, 0xA2, 0xFC, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0xA2, 0xA1, 0xA2, 0xA2, 0xA2, 0xA3, 0xA2, 0xA4, /* 0x70-0x73 */
+	0xA2, 0xA5, 0xA2, 0xA6, 0xA2, 0xA7, 0xA2, 0xA8, /* 0x74-0x77 */
+	0xA2, 0xA9, 0xA2, 0xAA, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0xA1, 0xFB, 0xA1, 0xFC, 0xA1, 0xFA, 0xA1, 0xFD, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0xA8, 0x49, 0xA8, 0x4A, /* 0x94-0x97 */
+	0xA8, 0x4B, 0xA8, 0x4C, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+};
+
+static unsigned char u2c_22[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0xA1, 0xCA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA1, 0xC7, /* 0x0C-0x0F */
+	0x00, 0x00, 0xA1, 0xC6, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0xA8, 0x4D, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0xA1, 0xE3, 0x00, 0x00, 0xA1, 0xCC, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0xA1, 0xD8, 0xA1, 0xDE, 0xA8, 0x4E, /* 0x1C-0x1F */
+	0xA1, 0xCF, 0x00, 0x00, 0x00, 0x00, 0xA8, 0x4F, /* 0x20-0x23 */
+	0x00, 0x00, 0xA1, 0xCE, 0x00, 0x00, 0xA1, 0xC4, /* 0x24-0x27 */
+	0xA1, 0xC5, 0xA1, 0xC9, 0xA1, 0xC8, 0xA1, 0xD2, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0xA1, 0xD3, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0xA1, 0xE0, 0xA1, 0xDF, 0xA1, 0xC3, 0xA1, 0xCB, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0xA1, 0xAB, 0xA1, 0xD7, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0xA1, 0xD6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0xA1, 0xD5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0xA8, 0x50, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0xA1, 0xD9, 0xA1, 0xD4, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0xA1, 0xDC, 0xA1, 0xDD, 0xA8, 0x51, 0xA8, 0x52, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0xA1, 0xDA, 0xA1, 0xDB, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0xA8, 0x92, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0xA1, 0xD1, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xA1, 0xCD, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA8, 0x53, /* 0xBC-0xBF */
+};
+
+static unsigned char u2c_23[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0xA1, 0xD0, 0x00, 0x00, /* 0x10-0x13 */
+};
+
+static unsigned char u2c_24[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0xA2, 0xD9, 0xA2, 0xDA, 0xA2, 0xDB, 0xA2, 0xDC, /* 0x60-0x63 */
+	0xA2, 0xDD, 0xA2, 0xDE, 0xA2, 0xDF, 0xA2, 0xE0, /* 0x64-0x67 */
+	0xA2, 0xE1, 0xA2, 0xE2, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0xA2, 0xC5, 0xA2, 0xC6, 0xA2, 0xC7, 0xA2, 0xC8, /* 0x74-0x77 */
+	0xA2, 0xC9, 0xA2, 0xCA, 0xA2, 0xCB, 0xA2, 0xCC, /* 0x78-0x7B */
+	0xA2, 0xCD, 0xA2, 0xCE, 0xA2, 0xCF, 0xA2, 0xD0, /* 0x7C-0x7F */
+	
+	0xA2, 0xD1, 0xA2, 0xD2, 0xA2, 0xD3, 0xA2, 0xD4, /* 0x80-0x83 */
+	0xA2, 0xD5, 0xA2, 0xD6, 0xA2, 0xD7, 0xA2, 0xD8, /* 0x84-0x87 */
+	0xA2, 0xB1, 0xA2, 0xB2, 0xA2, 0xB3, 0xA2, 0xB4, /* 0x88-0x8B */
+	0xA2, 0xB5, 0xA2, 0xB6, 0xA2, 0xB7, 0xA2, 0xB8, /* 0x8C-0x8F */
+	0xA2, 0xB9, 0xA2, 0xBA, 0xA2, 0xBB, 0xA2, 0xBC, /* 0x90-0x93 */
+	0xA2, 0xBD, 0xA2, 0xBE, 0xA2, 0xBF, 0xA2, 0xC0, /* 0x94-0x97 */
+	0xA2, 0xC1, 0xA2, 0xC2, 0xA2, 0xC3, 0xA2, 0xC4, /* 0x98-0x9B */
+};
+
+static unsigned char u2c_25[512] = {
+	0xA9, 0xA4, 0xA9, 0xA5, 0xA9, 0xA6, 0xA9, 0xA7, /* 0x00-0x03 */
+	0xA9, 0xA8, 0xA9, 0xA9, 0xA9, 0xAA, 0xA9, 0xAB, /* 0x04-0x07 */
+	0xA9, 0xAC, 0xA9, 0xAD, 0xA9, 0xAE, 0xA9, 0xAF, /* 0x08-0x0B */
+	0xA9, 0xB0, 0xA9, 0xB1, 0xA9, 0xB2, 0xA9, 0xB3, /* 0x0C-0x0F */
+	0xA9, 0xB4, 0xA9, 0xB5, 0xA9, 0xB6, 0xA9, 0xB7, /* 0x10-0x13 */
+	0xA9, 0xB8, 0xA9, 0xB9, 0xA9, 0xBA, 0xA9, 0xBB, /* 0x14-0x17 */
+	0xA9, 0xBC, 0xA9, 0xBD, 0xA9, 0xBE, 0xA9, 0xBF, /* 0x18-0x1B */
+	0xA9, 0xC0, 0xA9, 0xC1, 0xA9, 0xC2, 0xA9, 0xC3, /* 0x1C-0x1F */
+	0xA9, 0xC4, 0xA9, 0xC5, 0xA9, 0xC6, 0xA9, 0xC7, /* 0x20-0x23 */
+	0xA9, 0xC8, 0xA9, 0xC9, 0xA9, 0xCA, 0xA9, 0xCB, /* 0x24-0x27 */
+	0xA9, 0xCC, 0xA9, 0xCD, 0xA9, 0xCE, 0xA9, 0xCF, /* 0x28-0x2B */
+	0xA9, 0xD0, 0xA9, 0xD1, 0xA9, 0xD2, 0xA9, 0xD3, /* 0x2C-0x2F */
+	0xA9, 0xD4, 0xA9, 0xD5, 0xA9, 0xD6, 0xA9, 0xD7, /* 0x30-0x33 */
+	0xA9, 0xD8, 0xA9, 0xD9, 0xA9, 0xDA, 0xA9, 0xDB, /* 0x34-0x37 */
+	0xA9, 0xDC, 0xA9, 0xDD, 0xA9, 0xDE, 0xA9, 0xDF, /* 0x38-0x3B */
+	0xA9, 0xE0, 0xA9, 0xE1, 0xA9, 0xE2, 0xA9, 0xE3, /* 0x3C-0x3F */
+	0xA9, 0xE4, 0xA9, 0xE5, 0xA9, 0xE6, 0xA9, 0xE7, /* 0x40-0x43 */
+	0xA9, 0xE8, 0xA9, 0xE9, 0xA9, 0xEA, 0xA9, 0xEB, /* 0x44-0x47 */
+	0xA9, 0xEC, 0xA9, 0xED, 0xA9, 0xEE, 0xA9, 0xEF, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0xA8, 0x54, 0xA8, 0x55, 0xA8, 0x56, 0xA8, 0x57, /* 0x50-0x53 */
+	0xA8, 0x58, 0xA8, 0x59, 0xA8, 0x5A, 0xA8, 0x5B, /* 0x54-0x57 */
+	0xA8, 0x5C, 0xA8, 0x5D, 0xA8, 0x5E, 0xA8, 0x5F, /* 0x58-0x5B */
+	0xA8, 0x60, 0xA8, 0x61, 0xA8, 0x62, 0xA8, 0x63, /* 0x5C-0x5F */
+	0xA8, 0x64, 0xA8, 0x65, 0xA8, 0x66, 0xA8, 0x67, /* 0x60-0x63 */
+	0xA8, 0x68, 0xA8, 0x69, 0xA8, 0x6A, 0xA8, 0x6B, /* 0x64-0x67 */
+	0xA8, 0x6C, 0xA8, 0x6D, 0xA8, 0x6E, 0xA8, 0x6F, /* 0x68-0x6B */
+	0xA8, 0x70, 0xA8, 0x71, 0xA8, 0x72, 0xA8, 0x73, /* 0x6C-0x6F */
+	0xA8, 0x74, 0xA8, 0x75, 0xA8, 0x76, 0xA8, 0x77, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xA8, 0x78, 0xA8, 0x79, 0xA8, 0x7A, /* 0x80-0x83 */
+	0xA8, 0x7B, 0xA8, 0x7C, 0xA8, 0x7D, 0xA8, 0x7E, /* 0x84-0x87 */
+	0xA8, 0x80, 0xA8, 0x81, 0xA8, 0x82, 0xA8, 0x83, /* 0x88-0x8B */
+	0xA8, 0x84, 0xA8, 0x85, 0xA8, 0x86, 0xA8, 0x87, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA8, 0x88, /* 0x90-0x93 */
+	0xA8, 0x89, 0xA8, 0x8A, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0xA1, 0xF6, 0xA1, 0xF5, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0xA1, 0xF8, 0xA1, 0xF7, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0xA8, 0x8B, 0xA8, 0x8C, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0xA1, 0xF4, 0xA1, 0xF3, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA1, 0xF0, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0xA1, 0xF2, 0xA1, 0xF1, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0xA8, 0x8D, 0xA8, 0x8E, /* 0xE0-0xE3 */
+	0xA8, 0x8F, 0xA8, 0x90, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_26[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0xA1, 0xEF, 0xA1, 0xEE, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xA8, 0x91, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0xA1, 0xE2, 0x00, 0x00, 0xA1, 0xE1, 0x00, 0x00, /* 0x40-0x43 */
+};
+
+static unsigned char u2c_30[512] = {
+	0xA1, 0xA1, 0xA1, 0xA2, 0xA1, 0xA3, 0xA1, 0xA8, /* 0x00-0x03 */
+	0x00, 0x00, 0xA1, 0xA9, 0xA9, 0x65, 0xA9, 0x96, /* 0x04-0x07 */
+	0xA1, 0xB4, 0xA1, 0xB5, 0xA1, 0xB6, 0xA1, 0xB7, /* 0x08-0x0B */
+	0xA1, 0xB8, 0xA1, 0xB9, 0xA1, 0xBA, 0xA1, 0xBB, /* 0x0C-0x0F */
+	0xA1, 0xBE, 0xA1, 0xBF, 0xA8, 0x93, 0xA1, 0xFE, /* 0x10-0x13 */
+	0xA1, 0xB2, 0xA1, 0xB3, 0xA1, 0xBC, 0xA1, 0xBD, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0xA8, 0x94, 0xA8, 0x95, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0xA9, 0x40, 0xA9, 0x41, 0xA9, 0x42, /* 0x20-0x23 */
+	0xA9, 0x43, 0xA9, 0x44, 0xA9, 0x45, 0xA9, 0x46, /* 0x24-0x27 */
+	0xA9, 0x47, 0xA9, 0x48, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0xA4, 0xA1, 0xA4, 0xA2, 0xA4, 0xA3, /* 0x40-0x43 */
+	0xA4, 0xA4, 0xA4, 0xA5, 0xA4, 0xA6, 0xA4, 0xA7, /* 0x44-0x47 */
+	0xA4, 0xA8, 0xA4, 0xA9, 0xA4, 0xAA, 0xA4, 0xAB, /* 0x48-0x4B */
+	0xA4, 0xAC, 0xA4, 0xAD, 0xA4, 0xAE, 0xA4, 0xAF, /* 0x4C-0x4F */
+	0xA4, 0xB0, 0xA4, 0xB1, 0xA4, 0xB2, 0xA4, 0xB3, /* 0x50-0x53 */
+	0xA4, 0xB4, 0xA4, 0xB5, 0xA4, 0xB6, 0xA4, 0xB7, /* 0x54-0x57 */
+	0xA4, 0xB8, 0xA4, 0xB9, 0xA4, 0xBA, 0xA4, 0xBB, /* 0x58-0x5B */
+	0xA4, 0xBC, 0xA4, 0xBD, 0xA4, 0xBE, 0xA4, 0xBF, /* 0x5C-0x5F */
+	0xA4, 0xC0, 0xA4, 0xC1, 0xA4, 0xC2, 0xA4, 0xC3, /* 0x60-0x63 */
+	0xA4, 0xC4, 0xA4, 0xC5, 0xA4, 0xC6, 0xA4, 0xC7, /* 0x64-0x67 */
+	0xA4, 0xC8, 0xA4, 0xC9, 0xA4, 0xCA, 0xA4, 0xCB, /* 0x68-0x6B */
+	0xA4, 0xCC, 0xA4, 0xCD, 0xA4, 0xCE, 0xA4, 0xCF, /* 0x6C-0x6F */
+	0xA4, 0xD0, 0xA4, 0xD1, 0xA4, 0xD2, 0xA4, 0xD3, /* 0x70-0x73 */
+	0xA4, 0xD4, 0xA4, 0xD5, 0xA4, 0xD6, 0xA4, 0xD7, /* 0x74-0x77 */
+	0xA4, 0xD8, 0xA4, 0xD9, 0xA4, 0xDA, 0xA4, 0xDB, /* 0x78-0x7B */
+	0xA4, 0xDC, 0xA4, 0xDD, 0xA4, 0xDE, 0xA4, 0xDF, /* 0x7C-0x7F */
+	
+	0xA4, 0xE0, 0xA4, 0xE1, 0xA4, 0xE2, 0xA4, 0xE3, /* 0x80-0x83 */
+	0xA4, 0xE4, 0xA4, 0xE5, 0xA4, 0xE6, 0xA4, 0xE7, /* 0x84-0x87 */
+	0xA4, 0xE8, 0xA4, 0xE9, 0xA4, 0xEA, 0xA4, 0xEB, /* 0x88-0x8B */
+	0xA4, 0xEC, 0xA4, 0xED, 0xA4, 0xEE, 0xA4, 0xEF, /* 0x8C-0x8F */
+	0xA4, 0xF0, 0xA4, 0xF1, 0xA4, 0xF2, 0xA4, 0xF3, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA9, 0x61, /* 0x98-0x9B */
+	0xA9, 0x62, 0xA9, 0x66, 0xA9, 0x67, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0xA5, 0xA1, 0xA5, 0xA2, 0xA5, 0xA3, /* 0xA0-0xA3 */
+	0xA5, 0xA4, 0xA5, 0xA5, 0xA5, 0xA6, 0xA5, 0xA7, /* 0xA4-0xA7 */
+	0xA5, 0xA8, 0xA5, 0xA9, 0xA5, 0xAA, 0xA5, 0xAB, /* 0xA8-0xAB */
+	0xA5, 0xAC, 0xA5, 0xAD, 0xA5, 0xAE, 0xA5, 0xAF, /* 0xAC-0xAF */
+	0xA5, 0xB0, 0xA5, 0xB1, 0xA5, 0xB2, 0xA5, 0xB3, /* 0xB0-0xB3 */
+	0xA5, 0xB4, 0xA5, 0xB5, 0xA5, 0xB6, 0xA5, 0xB7, /* 0xB4-0xB7 */
+	0xA5, 0xB8, 0xA5, 0xB9, 0xA5, 0xBA, 0xA5, 0xBB, /* 0xB8-0xBB */
+	0xA5, 0xBC, 0xA5, 0xBD, 0xA5, 0xBE, 0xA5, 0xBF, /* 0xBC-0xBF */
+	0xA5, 0xC0, 0xA5, 0xC1, 0xA5, 0xC2, 0xA5, 0xC3, /* 0xC0-0xC3 */
+	0xA5, 0xC4, 0xA5, 0xC5, 0xA5, 0xC6, 0xA5, 0xC7, /* 0xC4-0xC7 */
+	0xA5, 0xC8, 0xA5, 0xC9, 0xA5, 0xCA, 0xA5, 0xCB, /* 0xC8-0xCB */
+	0xA5, 0xCC, 0xA5, 0xCD, 0xA5, 0xCE, 0xA5, 0xCF, /* 0xCC-0xCF */
+	0xA5, 0xD0, 0xA5, 0xD1, 0xA5, 0xD2, 0xA5, 0xD3, /* 0xD0-0xD3 */
+	0xA5, 0xD4, 0xA5, 0xD5, 0xA5, 0xD6, 0xA5, 0xD7, /* 0xD4-0xD7 */
+	0xA5, 0xD8, 0xA5, 0xD9, 0xA5, 0xDA, 0xA5, 0xDB, /* 0xD8-0xDB */
+	0xA5, 0xDC, 0xA5, 0xDD, 0xA5, 0xDE, 0xA5, 0xDF, /* 0xDC-0xDF */
+	0xA5, 0xE0, 0xA5, 0xE1, 0xA5, 0xE2, 0xA5, 0xE3, /* 0xE0-0xE3 */
+	0xA5, 0xE4, 0xA5, 0xE5, 0xA5, 0xE6, 0xA5, 0xE7, /* 0xE4-0xE7 */
+	0xA5, 0xE8, 0xA5, 0xE9, 0xA5, 0xEA, 0xA5, 0xEB, /* 0xE8-0xEB */
+	0xA5, 0xEC, 0xA5, 0xED, 0xA5, 0xEE, 0xA5, 0xEF, /* 0xEC-0xEF */
+	0xA5, 0xF0, 0xA5, 0xF1, 0xA5, 0xF2, 0xA5, 0xF3, /* 0xF0-0xF3 */
+	0xA5, 0xF4, 0xA5, 0xF5, 0xA5, 0xF6, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0xA9, 0x60, 0xA9, 0x63, 0xA9, 0x64, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_31[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0xA8, 0xC5, 0xA8, 0xC6, 0xA8, 0xC7, /* 0x04-0x07 */
+	0xA8, 0xC8, 0xA8, 0xC9, 0xA8, 0xCA, 0xA8, 0xCB, /* 0x08-0x0B */
+	0xA8, 0xCC, 0xA8, 0xCD, 0xA8, 0xCE, 0xA8, 0xCF, /* 0x0C-0x0F */
+	0xA8, 0xD0, 0xA8, 0xD1, 0xA8, 0xD2, 0xA8, 0xD3, /* 0x10-0x13 */
+	0xA8, 0xD4, 0xA8, 0xD5, 0xA8, 0xD6, 0xA8, 0xD7, /* 0x14-0x17 */
+	0xA8, 0xD8, 0xA8, 0xD9, 0xA8, 0xDA, 0xA8, 0xDB, /* 0x18-0x1B */
+	0xA8, 0xDC, 0xA8, 0xDD, 0xA8, 0xDE, 0xA8, 0xDF, /* 0x1C-0x1F */
+	0xA8, 0xE0, 0xA8, 0xE1, 0xA8, 0xE2, 0xA8, 0xE3, /* 0x20-0x23 */
+	0xA8, 0xE4, 0xA8, 0xE5, 0xA8, 0xE6, 0xA8, 0xE7, /* 0x24-0x27 */
+	0xA8, 0xE8, 0xA8, 0xE9, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0xD2, 0xBB, 0xB6, 0xFE, /* 0x90-0x93 */
+	0xC8, 0xFD, 0xCB, 0xC4, 0xC9, 0xCF, 0xD6, 0xD0, /* 0x94-0x97 */
+	0xCF, 0xC2, 0xBC, 0xD7, 0xD2, 0xD2, 0xB1, 0xFB, /* 0x98-0x9B */
+	0xB6, 0xA1, 0xCC, 0xEC, 0xB5, 0xD8, 0xC8, 0xCB, /* 0x9C-0x9F */
+};
+
+static unsigned char u2c_32[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0xA2, 0xE5, 0xA2, 0xE6, 0xA2, 0xE7, 0xA2, 0xE8, /* 0x20-0x23 */
+	0xA2, 0xE9, 0xA2, 0xEA, 0xA2, 0xEB, 0xA2, 0xEC, /* 0x24-0x27 */
+	0xA2, 0xED, 0xA2, 0xEE, 0xD4, 0xC2, 0xBB, 0xF0, /* 0x28-0x2B */
+	0xCB, 0xAE, 0xC4, 0xBE, 0xBD, 0xF0, 0xCD, 0xC1, /* 0x2C-0x2F */
+	0xC8, 0xD5, 0xA9, 0x5A, 0xD3, 0xD0, 0xC9, 0xE7, /* 0x30-0x33 */
+	0xC3, 0xFB, 0xCC, 0xD8, 0xB2, 0xC6, 0xD7, 0xA3, /* 0x34-0x37 */
+	0xC0, 0xCD, 0xB4, 0xFA, 0xBA, 0xF4, 0xD1, 0xA7, /* 0x38-0x3B */
+	0xBC, 0xE0, 0xC6, 0xF3, 0xD7, 0xCA, 0xD0, 0xAD, /* 0x3C-0x3F */
+	0xBC, 0xC0, 0xD0, 0xDD, 0xD7, 0xD4, 0xD6, 0xC1, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xD2, 0xBB, 0xB6, 0xFE, 0xC8, 0xFD, 0xCB, 0xC4, /* 0x80-0x83 */
+	0xCE, 0xE5, 0xC1, 0xF9, 0xC6, 0xDF, 0xB0, 0xCB, /* 0x84-0x87 */
+	0xBE, 0xC5, 0xCA, 0xAE, 0xD4, 0xC2, 0xBB, 0xF0, /* 0x88-0x8B */
+	0xCB, 0xAE, 0xC4, 0xBE, 0xBD, 0xF0, 0xCD, 0xC1, /* 0x8C-0x8F */
+	0xC8, 0xD5, 0xD6, 0xEA, 0xD3, 0xD0, 0xC9, 0xE7, /* 0x90-0x93 */
+	0xC3, 0xFB, 0xCC, 0xD8, 0xB2, 0xC6, 0xD7, 0xA3, /* 0x94-0x97 */
+	0xC0, 0xCD, 0xC3, 0xD8, 0xC4, 0xD0, 0xC5, 0xAE, /* 0x98-0x9B */
+	0xCA, 0xCA, 0xD3, 0xC5, 0x00, 0x00, 0xD7, 0xA2, /* 0x9C-0x9F */
+	0xCF, 0xEE, 0xD0, 0xDD, 0xD0, 0xB4, 0xA9, 0x49, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0xD2, 0xBD, 0xD7, 0xDA, 0xD1, 0xA7, /* 0xA8-0xAB */
+	0xBC, 0xE0, 0xC6, 0xF3, 0xD7, 0xCA, 0xD0, 0xAD, /* 0xAC-0xAF */
+	0xD2, 0xB9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+};
+
+static unsigned char u2c_33[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0xA9, 0x4A, 0xA9, 0x4B, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0xA9, 0x4C, 0xA9, 0x4D, 0xA9, 0x4E, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0xA9, 0x4F, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xA9, 0x50, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0xA9, 0x51, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0xA9, 0x52, 0xA9, 0x53, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xA9, 0x54, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+};
+
+static unsigned char u2c_4E[512] = {
+	0xD2, 0xBB, 0xB6, 0xA1, 0x81, 0x40, 0xC6, 0xDF, /* 0x00-0x03 */
+	0x81, 0x41, 0x81, 0x42, 0x81, 0x43, 0xCD, 0xF2, /* 0x04-0x07 */
+	0xD5, 0xC9, 0xC8, 0xFD, 0xC9, 0xCF, 0xCF, 0xC2, /* 0x08-0x0B */
+	0xD8, 0xA2, 0xB2, 0xBB, 0xD3, 0xEB, 0x81, 0x44, /* 0x0C-0x0F */
+	0xD8, 0xA4, 0xB3, 0xF3, 0x81, 0x45, 0xD7, 0xA8, /* 0x10-0x13 */
+	0xC7, 0xD2, 0xD8, 0xA7, 0xCA, 0xC0, 0x81, 0x46, /* 0x14-0x17 */
+	0xC7, 0xF0, 0xB1, 0xFB, 0xD2, 0xB5, 0xB4, 0xD4, /* 0x18-0x1B */
+	0xB6, 0xAB, 0xCB, 0xBF, 0xD8, 0xA9, 0x81, 0x47, /* 0x1C-0x1F */
+	0x81, 0x48, 0x81, 0x49, 0xB6, 0xAA, 0x81, 0x4A, /* 0x20-0x23 */
+	0xC1, 0xBD, 0xD1, 0xCF, 0x81, 0x4B, 0xC9, 0xA5, /* 0x24-0x27 */
+	0xD8, 0xAD, 0x81, 0x4C, 0xB8, 0xF6, 0xD1, 0xBE, /* 0x28-0x2B */
+	0xE3, 0xDC, 0xD6, 0xD0, 0x81, 0x4D, 0x81, 0x4E, /* 0x2C-0x2F */
+	0xB7, 0xE1, 0x81, 0x4F, 0xB4, 0xAE, 0x81, 0x50, /* 0x30-0x33 */
+	0xC1, 0xD9, 0x81, 0x51, 0xD8, 0xBC, 0x81, 0x52, /* 0x34-0x37 */
+	0xCD, 0xE8, 0xB5, 0xA4, 0xCE, 0xAA, 0xD6, 0xF7, /* 0x38-0x3B */
+	0x81, 0x53, 0xC0, 0xF6, 0xBE, 0xD9, 0xD8, 0xAF, /* 0x3C-0x3F */
+	0x81, 0x54, 0x81, 0x55, 0x81, 0x56, 0xC4, 0xCB, /* 0x40-0x43 */
+	0x81, 0x57, 0xBE, 0xC3, 0x81, 0x58, 0xD8, 0xB1, /* 0x44-0x47 */
+	0xC3, 0xB4, 0xD2, 0xE5, 0x81, 0x59, 0xD6, 0xAE, /* 0x48-0x4B */
+	0xCE, 0xDA, 0xD5, 0xA7, 0xBA, 0xF5, 0xB7, 0xA6, /* 0x4C-0x4F */
+	0xC0, 0xD6, 0x81, 0x5A, 0xC6, 0xB9, 0xC5, 0xD2, /* 0x50-0x53 */
+	0xC7, 0xC7, 0x81, 0x5B, 0xB9, 0xD4, 0x81, 0x5C, /* 0x54-0x57 */
+	0xB3, 0xCB, 0xD2, 0xD2, 0x81, 0x5D, 0x81, 0x5E, /* 0x58-0x5B */
+	0xD8, 0xBF, 0xBE, 0xC5, 0xC6, 0xF2, 0xD2, 0xB2, /* 0x5C-0x5F */
+	0xCF, 0xB0, 0xCF, 0xE7, 0x81, 0x5F, 0x81, 0x60, /* 0x60-0x63 */
+	0x81, 0x61, 0x81, 0x62, 0xCA, 0xE9, 0x81, 0x63, /* 0x64-0x67 */
+	0x81, 0x64, 0xD8, 0xC0, 0x81, 0x65, 0x81, 0x66, /* 0x68-0x6B */
+	0x81, 0x67, 0x81, 0x68, 0x81, 0x69, 0x81, 0x6A, /* 0x6C-0x6F */
+	0xC2, 0xF2, 0xC2, 0xD2, 0x81, 0x6B, 0xC8, 0xE9, /* 0x70-0x73 */
+	0x81, 0x6C, 0x81, 0x6D, 0x81, 0x6E, 0x81, 0x6F, /* 0x74-0x77 */
+	0x81, 0x70, 0x81, 0x71, 0x81, 0x72, 0x81, 0x73, /* 0x78-0x7B */
+	0x81, 0x74, 0x81, 0x75, 0xC7, 0xAC, 0x81, 0x76, /* 0x7C-0x7F */
+	
+	0x81, 0x77, 0x81, 0x78, 0x81, 0x79, 0x81, 0x7A, /* 0x80-0x83 */
+	0x81, 0x7B, 0x81, 0x7C, 0xC1, 0xCB, 0x81, 0x7D, /* 0x84-0x87 */
+	0xD3, 0xE8, 0xD5, 0xF9, 0x81, 0x7E, 0xCA, 0xC2, /* 0x88-0x8B */
+	0xB6, 0xFE, 0xD8, 0xA1, 0xD3, 0xDA, 0xBF, 0xF7, /* 0x8C-0x8F */
+	0x81, 0x80, 0xD4, 0xC6, 0xBB, 0xA5, 0xD8, 0xC1, /* 0x90-0x93 */
+	0xCE, 0xE5, 0xBE, 0xAE, 0x81, 0x81, 0x81, 0x82, /* 0x94-0x97 */
+	0xD8, 0xA8, 0x81, 0x83, 0xD1, 0xC7, 0xD0, 0xA9, /* 0x98-0x9B */
+	0x81, 0x84, 0x81, 0x85, 0x81, 0x86, 0xD8, 0xBD, /* 0x9C-0x9F */
+	0xD9, 0xEF, 0xCD, 0xF6, 0xBF, 0xBA, 0x81, 0x87, /* 0xA0-0xA3 */
+	0xBD, 0xBB, 0xBA, 0xA5, 0xD2, 0xE0, 0xB2, 0xFA, /* 0xA4-0xA7 */
+	0xBA, 0xE0, 0xC4, 0xB6, 0x81, 0x88, 0xCF, 0xED, /* 0xA8-0xAB */
+	0xBE, 0xA9, 0xCD, 0xA4, 0xC1, 0xC1, 0x81, 0x89, /* 0xAC-0xAF */
+	0x81, 0x8A, 0x81, 0x8B, 0xC7, 0xD7, 0xD9, 0xF1, /* 0xB0-0xB3 */
+	0x81, 0x8C, 0xD9, 0xF4, 0x81, 0x8D, 0x81, 0x8E, /* 0xB4-0xB7 */
+	0x81, 0x8F, 0x81, 0x90, 0xC8, 0xCB, 0xD8, 0xE9, /* 0xB8-0xBB */
+	0x81, 0x91, 0x81, 0x92, 0x81, 0x93, 0xD2, 0xDA, /* 0xBC-0xBF */
+	0xCA, 0xB2, 0xC8, 0xCA, 0xD8, 0xEC, 0xD8, 0xEA, /* 0xC0-0xC3 */
+	0xD8, 0xC6, 0xBD, 0xF6, 0xC6, 0xCD, 0xB3, 0xF0, /* 0xC4-0xC7 */
+	0x81, 0x94, 0xD8, 0xEB, 0xBD, 0xF1, 0xBD, 0xE9, /* 0xC8-0xCB */
+	0x81, 0x95, 0xC8, 0xD4, 0xB4, 0xD3, 0x81, 0x96, /* 0xCC-0xCF */
+	0x81, 0x97, 0xC2, 0xD8, 0x81, 0x98, 0xB2, 0xD6, /* 0xD0-0xD3 */
+	0xD7, 0xD0, 0xCA, 0xCB, 0xCB, 0xFB, 0xD5, 0xCC, /* 0xD4-0xD7 */
+	0xB8, 0xB6, 0xCF, 0xC9, 0x81, 0x99, 0x81, 0x9A, /* 0xD8-0xDB */
+	0x81, 0x9B, 0xD9, 0xDA, 0xD8, 0xF0, 0xC7, 0xAA, /* 0xDC-0xDF */
+	0x81, 0x9C, 0xD8, 0xEE, 0x81, 0x9D, 0xB4, 0xFA, /* 0xE0-0xE3 */
+	0xC1, 0xEE, 0xD2, 0xD4, 0x81, 0x9E, 0x81, 0x9F, /* 0xE4-0xE7 */
+	0xD8, 0xED, 0x81, 0xA0, 0xD2, 0xC7, 0xD8, 0xEF, /* 0xE8-0xEB */
+	0xC3, 0xC7, 0x81, 0xA1, 0x81, 0xA2, 0x81, 0xA3, /* 0xEC-0xEF */
+	0xD1, 0xF6, 0x81, 0xA4, 0xD6, 0xD9, 0xD8, 0xF2, /* 0xF0-0xF3 */
+	0x81, 0xA5, 0xD8, 0xF5, 0xBC, 0xFE, 0xBC, 0xDB, /* 0xF4-0xF7 */
+	0x81, 0xA6, 0x81, 0xA7, 0x81, 0xA8, 0xC8, 0xCE, /* 0xF8-0xFB */
+	0x81, 0xA9, 0xB7, 0xDD, 0x81, 0xAA, 0xB7, 0xC2, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_4F[512] = {
+	0x81, 0xAB, 0xC6, 0xF3, 0x81, 0xAC, 0x81, 0xAD, /* 0x00-0x03 */
+	0x81, 0xAE, 0x81, 0xAF, 0x81, 0xB0, 0x81, 0xB1, /* 0x04-0x07 */
+	0x81, 0xB2, 0xD8, 0xF8, 0xD2, 0xC1, 0x81, 0xB3, /* 0x08-0x0B */
+	0x81, 0xB4, 0xCE, 0xE9, 0xBC, 0xBF, 0xB7, 0xFC, /* 0x0C-0x0F */
+	0xB7, 0xA5, 0xD0, 0xDD, 0x81, 0xB5, 0x81, 0xB6, /* 0x10-0x13 */
+	0x81, 0xB7, 0x81, 0xB8, 0x81, 0xB9, 0xD6, 0xDA, /* 0x14-0x17 */
+	0xD3, 0xC5, 0xBB, 0xEF, 0xBB, 0xE1, 0xD8, 0xF1, /* 0x18-0x1B */
+	0x81, 0xBA, 0x81, 0xBB, 0xC9, 0xA1, 0xCE, 0xB0, /* 0x1C-0x1F */
+	0xB4, 0xAB, 0x81, 0xBC, 0xD8, 0xF3, 0x81, 0xBD, /* 0x20-0x23 */
+	0xC9, 0xCB, 0xD8, 0xF6, 0xC2, 0xD7, 0xD8, 0xF7, /* 0x24-0x27 */
+	0x81, 0xBE, 0x81, 0xBF, 0xCE, 0xB1, 0xD8, 0xF9, /* 0x28-0x2B */
+	0x81, 0xC0, 0x81, 0xC1, 0x81, 0xC2, 0xB2, 0xAE, /* 0x2C-0x2F */
+	0xB9, 0xC0, 0x81, 0xC3, 0xD9, 0xA3, 0x81, 0xC4, /* 0x30-0x33 */
+	0xB0, 0xE9, 0x81, 0xC5, 0xC1, 0xE6, 0x81, 0xC6, /* 0x34-0x37 */
+	0xC9, 0xEC, 0x81, 0xC7, 0xCB, 0xC5, 0x81, 0xC8, /* 0x38-0x3B */
+	0xCB, 0xC6, 0xD9, 0xA4, 0x81, 0xC9, 0x81, 0xCA, /* 0x3C-0x3F */
+	0x81, 0xCB, 0x81, 0xCC, 0x81, 0xCD, 0xB5, 0xE8, /* 0x40-0x43 */
+	0x81, 0xCE, 0x81, 0xCF, 0xB5, 0xAB, 0x81, 0xD0, /* 0x44-0x47 */
+	0x81, 0xD1, 0x81, 0xD2, 0x81, 0xD3, 0x81, 0xD4, /* 0x48-0x4B */
+	0x81, 0xD5, 0xCE, 0xBB, 0xB5, 0xCD, 0xD7, 0xA1, /* 0x4C-0x4F */
+	0xD7, 0xF4, 0xD3, 0xD3, 0x81, 0xD6, 0xCC, 0xE5, /* 0x50-0x53 */
+	0x81, 0xD7, 0xBA, 0xCE, 0x81, 0xD8, 0xD9, 0xA2, /* 0x54-0x57 */
+	0xD9, 0xDC, 0xD3, 0xE0, 0xD8, 0xFD, 0xB7, 0xF0, /* 0x58-0x5B */
+	0xD7, 0xF7, 0xD8, 0xFE, 0xD8, 0xFA, 0xD9, 0xA1, /* 0x5C-0x5F */
+	0xC4, 0xE3, 0x81, 0xD9, 0x81, 0xDA, 0xD3, 0xB6, /* 0x60-0x63 */
+	0xD8, 0xF4, 0xD9, 0xDD, 0x81, 0xDB, 0xD8, 0xFB, /* 0x64-0x67 */
+	0x81, 0xDC, 0xC5, 0xE5, 0x81, 0xDD, 0x81, 0xDE, /* 0x68-0x6B */
+	0xC0, 0xD0, 0x81, 0xDF, 0x81, 0xE0, 0xD1, 0xF0, /* 0x6C-0x6F */
+	0xB0, 0xDB, 0x81, 0xE1, 0x81, 0xE2, 0xBC, 0xD1, /* 0x70-0x73 */
+	0xD9, 0xA6, 0x81, 0xE3, 0xD9, 0xA5, 0x81, 0xE4, /* 0x74-0x77 */
+	0x81, 0xE5, 0x81, 0xE6, 0x81, 0xE7, 0xD9, 0xAC, /* 0x78-0x7B */
+	0xD9, 0xAE, 0x81, 0xE8, 0xD9, 0xAB, 0xCA, 0xB9, /* 0x7C-0x7F */
+	
+	0x81, 0xE9, 0x81, 0xEA, 0x81, 0xEB, 0xD9, 0xA9, /* 0x80-0x83 */
+	0xD6, 0xB6, 0x81, 0xEC, 0x81, 0xED, 0x81, 0xEE, /* 0x84-0x87 */
+	0xB3, 0xDE, 0xD9, 0xA8, 0x81, 0xEF, 0xC0, 0xFD, /* 0x88-0x8B */
+	0x81, 0xF0, 0xCA, 0xCC, 0x81, 0xF1, 0xD9, 0xAA, /* 0x8C-0x8F */
+	0x81, 0xF2, 0xD9, 0xA7, 0x81, 0xF3, 0x81, 0xF4, /* 0x90-0x93 */
+	0xD9, 0xB0, 0x81, 0xF5, 0x81, 0xF6, 0xB6, 0xB1, /* 0x94-0x97 */
+	0x81, 0xF7, 0x81, 0xF8, 0x81, 0xF9, 0xB9, 0xA9, /* 0x98-0x9B */
+	0x81, 0xFA, 0xD2, 0xC0, 0x81, 0xFB, 0x81, 0xFC, /* 0x9C-0x9F */
+	0xCF, 0xC0, 0x81, 0xFD, 0x81, 0xFE, 0xC2, 0xC2, /* 0xA0-0xA3 */
+	0x82, 0x40, 0xBD, 0xC4, 0xD5, 0xEC, 0xB2, 0xE0, /* 0xA4-0xA7 */
+	0xC7, 0xC8, 0xBF, 0xEB, 0xD9, 0xAD, 0x82, 0x41, /* 0xA8-0xAB */
+	0xD9, 0xAF, 0x82, 0x42, 0xCE, 0xEA, 0xBA, 0xEE, /* 0xAC-0xAF */
+	0x82, 0x43, 0x82, 0x44, 0x82, 0x45, 0x82, 0x46, /* 0xB0-0xB3 */
+	0x82, 0x47, 0xC7, 0xD6, 0x82, 0x48, 0x82, 0x49, /* 0xB4-0xB7 */
+	0x82, 0x4A, 0x82, 0x4B, 0x82, 0x4C, 0x82, 0x4D, /* 0xB8-0xBB */
+	0x82, 0x4E, 0x82, 0x4F, 0x82, 0x50, 0xB1, 0xE3, /* 0xBC-0xBF */
+	0x82, 0x51, 0x82, 0x52, 0x82, 0x53, 0xB4, 0xD9, /* 0xC0-0xC3 */
+	0xB6, 0xED, 0xD9, 0xB4, 0x82, 0x54, 0x82, 0x55, /* 0xC4-0xC7 */
+	0x82, 0x56, 0x82, 0x57, 0xBF, 0xA1, 0x82, 0x58, /* 0xC8-0xCB */
+	0x82, 0x59, 0x82, 0x5A, 0xD9, 0xDE, 0xC7, 0xCE, /* 0xCC-0xCF */
+	0xC0, 0xFE, 0xD9, 0xB8, 0x82, 0x5B, 0x82, 0x5C, /* 0xD0-0xD3 */
+	0x82, 0x5D, 0x82, 0x5E, 0x82, 0x5F, 0xCB, 0xD7, /* 0xD4-0xD7 */
+	0xB7, 0xFD, 0x82, 0x60, 0xD9, 0xB5, 0x82, 0x61, /* 0xD8-0xDB */
+	0xD9, 0xB7, 0xB1, 0xA3, 0xD3, 0xE1, 0xD9, 0xB9, /* 0xDC-0xDF */
+	0x82, 0x62, 0xD0, 0xC5, 0x82, 0x63, 0xD9, 0xB6, /* 0xE0-0xE3 */
+	0x82, 0x64, 0x82, 0x65, 0xD9, 0xB1, 0x82, 0x66, /* 0xE4-0xE7 */
+	0xD9, 0xB2, 0xC1, 0xA9, 0xD9, 0xB3, 0x82, 0x67, /* 0xE8-0xEB */
+	0x82, 0x68, 0xBC, 0xF3, 0xD0, 0xDE, 0xB8, 0xA9, /* 0xEC-0xEF */
+	0x82, 0x69, 0xBE, 0xE3, 0x82, 0x6A, 0xD9, 0xBD, /* 0xF0-0xF3 */
+	0x82, 0x6B, 0x82, 0x6C, 0x82, 0x6D, 0x82, 0x6E, /* 0xF4-0xF7 */
+	0xD9, 0xBA, 0x82, 0x6F, 0xB0, 0xB3, 0x82, 0x70, /* 0xF8-0xFB */
+	0x82, 0x71, 0x82, 0x72, 0xD9, 0xC2, 0x82, 0x73, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_50[512] = {
+	0x82, 0x74, 0x82, 0x75, 0x82, 0x76, 0x82, 0x77, /* 0x00-0x03 */
+	0x82, 0x78, 0x82, 0x79, 0x82, 0x7A, 0x82, 0x7B, /* 0x04-0x07 */
+	0x82, 0x7C, 0x82, 0x7D, 0x82, 0x7E, 0x82, 0x80, /* 0x08-0x0B */
+	0xD9, 0xC4, 0xB1, 0xB6, 0x82, 0x81, 0xD9, 0xBF, /* 0x0C-0x0F */
+	0x82, 0x82, 0x82, 0x83, 0xB5, 0xB9, 0x82, 0x84, /* 0x10-0x13 */
+	0xBE, 0xF3, 0x82, 0x85, 0x82, 0x86, 0x82, 0x87, /* 0x14-0x17 */
+	0xCC, 0xC8, 0xBA, 0xF2, 0xD2, 0xD0, 0x82, 0x88, /* 0x18-0x1B */
+	0xD9, 0xC3, 0x82, 0x89, 0x82, 0x8A, 0xBD, 0xE8, /* 0x1C-0x1F */
+	0x82, 0x8B, 0xB3, 0xAB, 0x82, 0x8C, 0x82, 0x8D, /* 0x20-0x23 */
+	0x82, 0x8E, 0xD9, 0xC5, 0xBE, 0xEB, 0x82, 0x8F, /* 0x24-0x27 */
+	0xD9, 0xC6, 0xD9, 0xBB, 0xC4, 0xDF, 0x82, 0x90, /* 0x28-0x2B */
+	0xD9, 0xBE, 0xD9, 0xC1, 0xD9, 0xC0, 0x82, 0x91, /* 0x2C-0x2F */
+	0x82, 0x92, 0x82, 0x93, 0x82, 0x94, 0x82, 0x95, /* 0x30-0x33 */
+	0x82, 0x96, 0x82, 0x97, 0x82, 0x98, 0x82, 0x99, /* 0x34-0x37 */
+	0x82, 0x9A, 0x82, 0x9B, 0xD5, 0xAE, 0x82, 0x9C, /* 0x38-0x3B */
+	0xD6, 0xB5, 0x82, 0x9D, 0xC7, 0xE3, 0x82, 0x9E, /* 0x3C-0x3F */
+	0x82, 0x9F, 0x82, 0xA0, 0x82, 0xA1, 0xD9, 0xC8, /* 0x40-0x43 */
+	0x82, 0xA2, 0x82, 0xA3, 0x82, 0xA4, 0xBC, 0xD9, /* 0x44-0x47 */
+	0xD9, 0xCA, 0x82, 0xA5, 0x82, 0xA6, 0x82, 0xA7, /* 0x48-0x4B */
+	0xD9, 0xBC, 0x82, 0xA8, 0xD9, 0xCB, 0xC6, 0xAB, /* 0x4C-0x4F */
+	0x82, 0xA9, 0x82, 0xAA, 0x82, 0xAB, 0x82, 0xAC, /* 0x50-0x53 */
+	0x82, 0xAD, 0xD9, 0xC9, 0x82, 0xAE, 0x82, 0xAF, /* 0x54-0x57 */
+	0x82, 0xB0, 0x82, 0xB1, 0xD7, 0xF6, 0x82, 0xB2, /* 0x58-0x5B */
+	0xCD, 0xA3, 0x82, 0xB3, 0x82, 0xB4, 0x82, 0xB5, /* 0x5C-0x5F */
+	0x82, 0xB6, 0x82, 0xB7, 0x82, 0xB8, 0x82, 0xB9, /* 0x60-0x63 */
+	0x82, 0xBA, 0xBD, 0xA1, 0x82, 0xBB, 0x82, 0xBC, /* 0x64-0x67 */
+	0x82, 0xBD, 0x82, 0xBE, 0x82, 0xBF, 0x82, 0xC0, /* 0x68-0x6B */
+	0xD9, 0xCC, 0x82, 0xC1, 0x82, 0xC2, 0x82, 0xC3, /* 0x6C-0x6F */
+	0x82, 0xC4, 0x82, 0xC5, 0x82, 0xC6, 0x82, 0xC7, /* 0x70-0x73 */
+	0x82, 0xC8, 0x82, 0xC9, 0xC5, 0xBC, 0xCD, 0xB5, /* 0x74-0x77 */
+	0x82, 0xCA, 0x82, 0xCB, 0x82, 0xCC, 0xD9, 0xCD, /* 0x78-0x7B */
+	0x82, 0xCD, 0x82, 0xCE, 0xD9, 0xC7, 0xB3, 0xA5, /* 0x7C-0x7F */
+	
+	0xBF, 0xFE, 0x82, 0xCF, 0x82, 0xD0, 0x82, 0xD1, /* 0x80-0x83 */
+	0x82, 0xD2, 0xB8, 0xB5, 0x82, 0xD3, 0x82, 0xD4, /* 0x84-0x87 */
+	0xC0, 0xFC, 0x82, 0xD5, 0x82, 0xD6, 0x82, 0xD7, /* 0x88-0x8B */
+	0x82, 0xD8, 0xB0, 0xF8, 0x82, 0xD9, 0x82, 0xDA, /* 0x8C-0x8F */
+	0x82, 0xDB, 0x82, 0xDC, 0x82, 0xDD, 0x82, 0xDE, /* 0x90-0x93 */
+	0x82, 0xDF, 0x82, 0xE0, 0x82, 0xE1, 0x82, 0xE2, /* 0x94-0x97 */
+	0x82, 0xE3, 0x82, 0xE4, 0x82, 0xE5, 0x82, 0xE6, /* 0x98-0x9B */
+	0x82, 0xE7, 0x82, 0xE8, 0x82, 0xE9, 0x82, 0xEA, /* 0x9C-0x9F */
+	0x82, 0xEB, 0x82, 0xEC, 0x82, 0xED, 0xB4, 0xF6, /* 0xA0-0xA3 */
+	0x82, 0xEE, 0xD9, 0xCE, 0x82, 0xEF, 0xD9, 0xCF, /* 0xA4-0xA7 */
+	0xB4, 0xA2, 0xD9, 0xD0, 0x82, 0xF0, 0x82, 0xF1, /* 0xA8-0xAB */
+	0xB4, 0xDF, 0x82, 0xF2, 0x82, 0xF3, 0x82, 0xF4, /* 0xAC-0xAF */
+	0x82, 0xF5, 0x82, 0xF6, 0xB0, 0xC1, 0x82, 0xF7, /* 0xB0-0xB3 */
+	0x82, 0xF8, 0x82, 0xF9, 0x82, 0xFA, 0x82, 0xFB, /* 0xB4-0xB7 */
+	0x82, 0xFC, 0x82, 0xFD, 0xD9, 0xD1, 0xC9, 0xB5, /* 0xB8-0xBB */
+	0x82, 0xFE, 0x83, 0x40, 0x83, 0x41, 0x83, 0x42, /* 0xBC-0xBF */
+	0x83, 0x43, 0x83, 0x44, 0x83, 0x45, 0x83, 0x46, /* 0xC0-0xC3 */
+	0x83, 0x47, 0x83, 0x48, 0x83, 0x49, 0x83, 0x4A, /* 0xC4-0xC7 */
+	0x83, 0x4B, 0x83, 0x4C, 0x83, 0x4D, 0x83, 0x4E, /* 0xC8-0xCB */
+	0x83, 0x4F, 0x83, 0x50, 0x83, 0x51, 0xCF, 0xF1, /* 0xCC-0xCF */
+	0x83, 0x52, 0x83, 0x53, 0x83, 0x54, 0x83, 0x55, /* 0xD0-0xD3 */
+	0x83, 0x56, 0x83, 0x57, 0xD9, 0xD2, 0x83, 0x58, /* 0xD4-0xD7 */
+	0x83, 0x59, 0x83, 0x5A, 0xC1, 0xC5, 0x83, 0x5B, /* 0xD8-0xDB */
+	0x83, 0x5C, 0x83, 0x5D, 0x83, 0x5E, 0x83, 0x5F, /* 0xDC-0xDF */
+	0x83, 0x60, 0x83, 0x61, 0x83, 0x62, 0x83, 0x63, /* 0xE0-0xE3 */
+	0x83, 0x64, 0x83, 0x65, 0xD9, 0xD6, 0xC9, 0xAE, /* 0xE4-0xE7 */
+	0x83, 0x66, 0x83, 0x67, 0x83, 0x68, 0x83, 0x69, /* 0xE8-0xEB */
+	0xD9, 0xD5, 0xD9, 0xD4, 0xD9, 0xD7, 0x83, 0x6A, /* 0xEC-0xEF */
+	0x83, 0x6B, 0x83, 0x6C, 0x83, 0x6D, 0xCB, 0xDB, /* 0xF0-0xF3 */
+	0x83, 0x6E, 0xBD, 0xA9, 0x83, 0x6F, 0x83, 0x70, /* 0xF4-0xF7 */
+	0x83, 0x71, 0x83, 0x72, 0x83, 0x73, 0xC6, 0xA7, /* 0xF8-0xFB */
+	0x83, 0x74, 0x83, 0x75, 0x83, 0x76, 0x83, 0x77, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_51[512] = {
+	0x83, 0x78, 0x83, 0x79, 0x83, 0x7A, 0x83, 0x7B, /* 0x00-0x03 */
+	0x83, 0x7C, 0x83, 0x7D, 0xD9, 0xD3, 0xD9, 0xD8, /* 0x04-0x07 */
+	0x83, 0x7E, 0x83, 0x80, 0x83, 0x81, 0xD9, 0xD9, /* 0x08-0x0B */
+	0x83, 0x82, 0x83, 0x83, 0x83, 0x84, 0x83, 0x85, /* 0x0C-0x0F */
+	0x83, 0x86, 0x83, 0x87, 0xC8, 0xE5, 0x83, 0x88, /* 0x10-0x13 */
+	0x83, 0x89, 0x83, 0x8A, 0x83, 0x8B, 0x83, 0x8C, /* 0x14-0x17 */
+	0x83, 0x8D, 0x83, 0x8E, 0x83, 0x8F, 0x83, 0x90, /* 0x18-0x1B */
+	0x83, 0x91, 0x83, 0x92, 0x83, 0x93, 0x83, 0x94, /* 0x1C-0x1F */
+	0x83, 0x95, 0xC0, 0xDC, 0x83, 0x96, 0x83, 0x97, /* 0x20-0x23 */
+	0x83, 0x98, 0x83, 0x99, 0x83, 0x9A, 0x83, 0x9B, /* 0x24-0x27 */
+	0x83, 0x9C, 0x83, 0x9D, 0x83, 0x9E, 0x83, 0x9F, /* 0x28-0x2B */
+	0x83, 0xA0, 0x83, 0xA1, 0x83, 0xA2, 0x83, 0xA3, /* 0x2C-0x2F */
+	0x83, 0xA4, 0x83, 0xA5, 0x83, 0xA6, 0x83, 0xA7, /* 0x30-0x33 */
+	0x83, 0xA8, 0x83, 0xA9, 0x83, 0xAA, 0x83, 0xAB, /* 0x34-0x37 */
+	0x83, 0xAC, 0x83, 0xAD, 0x83, 0xAE, 0x83, 0xAF, /* 0x38-0x3B */
+	0x83, 0xB0, 0x83, 0xB1, 0x83, 0xB2, 0xB6, 0xF9, /* 0x3C-0x3F */
+	0xD8, 0xA3, 0xD4, 0xCA, 0x83, 0xB3, 0xD4, 0xAA, /* 0x40-0x43 */
+	0xD0, 0xD6, 0xB3, 0xE4, 0xD5, 0xD7, 0x83, 0xB4, /* 0x44-0x47 */
+	0xCF, 0xC8, 0xB9, 0xE2, 0x83, 0xB5, 0xBF, 0xCB, /* 0x48-0x4B */
+	0x83, 0xB6, 0xC3, 0xE2, 0x83, 0xB7, 0x83, 0xB8, /* 0x4C-0x4F */
+	0x83, 0xB9, 0xB6, 0xD2, 0x83, 0xBA, 0x83, 0xBB, /* 0x50-0x53 */
+	0xCD, 0xC3, 0xD9, 0xEE, 0xD9, 0xF0, 0x83, 0xBC, /* 0x54-0x57 */
+	0x83, 0xBD, 0x83, 0xBE, 0xB5, 0xB3, 0x83, 0xBF, /* 0x58-0x5B */
+	0xB6, 0xB5, 0x83, 0xC0, 0x83, 0xC1, 0x83, 0xC2, /* 0x5C-0x5F */
+	0x83, 0xC3, 0x83, 0xC4, 0xBE, 0xA4, 0x83, 0xC5, /* 0x60-0x63 */
+	0x83, 0xC6, 0xC8, 0xEB, 0x83, 0xC7, 0x83, 0xC8, /* 0x64-0x67 */
+	0xC8, 0xAB, 0x83, 0xC9, 0x83, 0xCA, 0xB0, 0xCB, /* 0x68-0x6B */
+	0xB9, 0xAB, 0xC1, 0xF9, 0xD9, 0xE2, 0x83, 0xCB, /* 0x6C-0x6F */
+	0xC0, 0xBC, 0xB9, 0xB2, 0x83, 0xCC, 0xB9, 0xD8, /* 0x70-0x73 */
+	0xD0, 0xCB, 0xB1, 0xF8, 0xC6, 0xE4, 0xBE, 0xDF, /* 0x74-0x77 */
+	0xB5, 0xE4, 0xD7, 0xC8, 0x83, 0xCD, 0xD1, 0xF8, /* 0x78-0x7B */
+	0xBC, 0xE6, 0xCA, 0xDE, 0x83, 0xCE, 0x83, 0xCF, /* 0x7C-0x7F */
+	
+	0xBC, 0xBD, 0xD9, 0xE6, 0xD8, 0xE7, 0x83, 0xD0, /* 0x80-0x83 */
+	0x83, 0xD1, 0xC4, 0xDA, 0x83, 0xD2, 0x83, 0xD3, /* 0x84-0x87 */
+	0xB8, 0xD4, 0xC8, 0xBD, 0x83, 0xD4, 0x83, 0xD5, /* 0x88-0x8B */
+	0xB2, 0xE1, 0xD4, 0xD9, 0x83, 0xD6, 0x83, 0xD7, /* 0x8C-0x8F */
+	0x83, 0xD8, 0x83, 0xD9, 0xC3, 0xB0, 0x83, 0xDA, /* 0x90-0x93 */
+	0x83, 0xDB, 0xC3, 0xE1, 0xDA, 0xA2, 0xC8, 0xDF, /* 0x94-0x97 */
+	0x83, 0xDC, 0xD0, 0xB4, 0x83, 0xDD, 0xBE, 0xFC, /* 0x98-0x9B */
+	0xC5, 0xA9, 0x83, 0xDE, 0x83, 0xDF, 0x83, 0xE0, /* 0x9C-0x9F */
+	0xB9, 0xDA, 0x83, 0xE1, 0xDA, 0xA3, 0x83, 0xE2, /* 0xA0-0xA3 */
+	0xD4, 0xA9, 0xDA, 0xA4, 0x83, 0xE3, 0x83, 0xE4, /* 0xA4-0xA7 */
+	0x83, 0xE5, 0x83, 0xE6, 0x83, 0xE7, 0xD9, 0xFB, /* 0xA8-0xAB */
+	0xB6, 0xAC, 0x83, 0xE8, 0x83, 0xE9, 0xB7, 0xEB, /* 0xAC-0xAF */
+	0xB1, 0xF9, 0xD9, 0xFC, 0xB3, 0xE5, 0xBE, 0xF6, /* 0xB0-0xB3 */
+	0x83, 0xEA, 0xBF, 0xF6, 0xD2, 0xB1, 0xC0, 0xE4, /* 0xB4-0xB7 */
+	0x83, 0xEB, 0x83, 0xEC, 0x83, 0xED, 0xB6, 0xB3, /* 0xB8-0xBB */
+	0xD9, 0xFE, 0xD9, 0xFD, 0x83, 0xEE, 0x83, 0xEF, /* 0xBC-0xBF */
+	0xBE, 0xBB, 0x83, 0xF0, 0x83, 0xF1, 0x83, 0xF2, /* 0xC0-0xC3 */
+	0xC6, 0xE0, 0x83, 0xF3, 0xD7, 0xBC, 0xDA, 0xA1, /* 0xC4-0xC7 */
+	0x83, 0xF4, 0xC1, 0xB9, 0x83, 0xF5, 0xB5, 0xF2, /* 0xC8-0xCB */
+	0xC1, 0xE8, 0x83, 0xF6, 0x83, 0xF7, 0xBC, 0xF5, /* 0xCC-0xCF */
+	0x83, 0xF8, 0xB4, 0xD5, 0x83, 0xF9, 0x83, 0xFA, /* 0xD0-0xD3 */
+	0x83, 0xFB, 0x83, 0xFC, 0x83, 0xFD, 0x83, 0xFE, /* 0xD4-0xD7 */
+	0x84, 0x40, 0x84, 0x41, 0x84, 0x42, 0xC1, 0xDD, /* 0xD8-0xDB */
+	0x84, 0x43, 0xC4, 0xFD, 0x84, 0x44, 0x84, 0x45, /* 0xDC-0xDF */
+	0xBC, 0xB8, 0xB7, 0xB2, 0x84, 0x46, 0x84, 0x47, /* 0xE0-0xE3 */
+	0xB7, 0xEF, 0x84, 0x48, 0x84, 0x49, 0x84, 0x4A, /* 0xE4-0xE7 */
+	0x84, 0x4B, 0x84, 0x4C, 0x84, 0x4D, 0xD9, 0xEC, /* 0xE8-0xEB */
+	0x84, 0x4E, 0xC6, 0xBE, 0x84, 0x4F, 0xBF, 0xAD, /* 0xEC-0xEF */
+	0xBB, 0xCB, 0x84, 0x50, 0x84, 0x51, 0xB5, 0xCA, /* 0xF0-0xF3 */
+	0x84, 0x52, 0xDB, 0xC9, 0xD0, 0xD7, 0x84, 0x53, /* 0xF4-0xF7 */
+	0xCD, 0xB9, 0xB0, 0xBC, 0xB3, 0xF6, 0xBB, 0xF7, /* 0xF8-0xFB */
+	0xDB, 0xCA, 0xBA, 0xAF, 0x84, 0x54, 0xD4, 0xE4, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_52[512] = {
+	0xB5, 0xB6, 0xB5, 0xF3, 0xD8, 0xD6, 0xC8, 0xD0, /* 0x00-0x03 */
+	0x84, 0x55, 0x84, 0x56, 0xB7, 0xD6, 0xC7, 0xD0, /* 0x04-0x07 */
+	0xD8, 0xD7, 0x84, 0x57, 0xBF, 0xAF, 0x84, 0x58, /* 0x08-0x0B */
+	0x84, 0x59, 0xDB, 0xBB, 0xD8, 0xD8, 0x84, 0x5A, /* 0x0C-0x0F */
+	0x84, 0x5B, 0xD0, 0xCC, 0xBB, 0xAE, 0x84, 0x5C, /* 0x10-0x13 */
+	0x84, 0x5D, 0x84, 0x5E, 0xEB, 0xBE, 0xC1, 0xD0, /* 0x14-0x17 */
+	0xC1, 0xF5, 0xD4, 0xF2, 0xB8, 0xD5, 0xB4, 0xB4, /* 0x18-0x1B */
+	0x84, 0x5F, 0xB3, 0xF5, 0x84, 0x60, 0x84, 0x61, /* 0x1C-0x1F */
+	0xC9, 0xBE, 0x84, 0x62, 0x84, 0x63, 0x84, 0x64, /* 0x20-0x23 */
+	0xC5, 0xD0, 0x84, 0x65, 0x84, 0x66, 0x84, 0x67, /* 0x24-0x27 */
+	0xC5, 0xD9, 0xC0, 0xFB, 0x84, 0x68, 0xB1, 0xF0, /* 0x28-0x2B */
+	0x84, 0x69, 0xD8, 0xD9, 0xB9, 0xCE, 0x84, 0x6A, /* 0x2C-0x2F */
+	0xB5, 0xBD, 0x84, 0x6B, 0x84, 0x6C, 0xD8, 0xDA, /* 0x30-0x33 */
+	0x84, 0x6D, 0x84, 0x6E, 0xD6, 0xC6, 0xCB, 0xA2, /* 0x34-0x37 */
+	0xC8, 0xAF, 0xC9, 0xB2, 0xB4, 0xCC, 0xBF, 0xCC, /* 0x38-0x3B */
+	0x84, 0x6F, 0xB9, 0xF4, 0x84, 0x70, 0xD8, 0xDB, /* 0x3C-0x3F */
+	0xD8, 0xDC, 0xB6, 0xE7, 0xBC, 0xC1, 0xCC, 0xEA, /* 0x40-0x43 */
+	0x84, 0x71, 0x84, 0x72, 0x84, 0x73, 0x84, 0x74, /* 0x44-0x47 */
+	0x84, 0x75, 0x84, 0x76, 0xCF, 0xF7, 0x84, 0x77, /* 0x48-0x4B */
+	0xD8, 0xDD, 0xC7, 0xB0, 0x84, 0x78, 0x84, 0x79, /* 0x4C-0x4F */
+	0xB9, 0xD0, 0xBD, 0xA3, 0x84, 0x7A, 0x84, 0x7B, /* 0x50-0x53 */
+	0xCC, 0xDE, 0x84, 0x7C, 0xC6, 0xCA, 0x84, 0x7D, /* 0x54-0x57 */
+	0x84, 0x7E, 0x84, 0x80, 0x84, 0x81, 0x84, 0x82, /* 0x58-0x5B */
+	0xD8, 0xE0, 0x84, 0x83, 0xD8, 0xDE, 0x84, 0x84, /* 0x5C-0x5F */
+	0x84, 0x85, 0xD8, 0xDF, 0x84, 0x86, 0x84, 0x87, /* 0x60-0x63 */
+	0x84, 0x88, 0xB0, 0xFE, 0x84, 0x89, 0xBE, 0xE7, /* 0x64-0x67 */
+	0x84, 0x8A, 0xCA, 0xA3, 0xBC, 0xF4, 0x84, 0x8B, /* 0x68-0x6B */
+	0x84, 0x8C, 0x84, 0x8D, 0x84, 0x8E, 0xB8, 0xB1, /* 0x6C-0x6F */
+	0x84, 0x8F, 0x84, 0x90, 0xB8, 0xEE, 0x84, 0x91, /* 0x70-0x73 */
+	0x84, 0x92, 0x84, 0x93, 0x84, 0x94, 0x84, 0x95, /* 0x74-0x77 */
+	0x84, 0x96, 0x84, 0x97, 0x84, 0x98, 0x84, 0x99, /* 0x78-0x7B */
+	0x84, 0x9A, 0xD8, 0xE2, 0x84, 0x9B, 0xBD, 0xCB, /* 0x7C-0x7F */
+	
+	0x84, 0x9C, 0xD8, 0xE4, 0xD8, 0xE3, 0x84, 0x9D, /* 0x80-0x83 */
+	0x84, 0x9E, 0x84, 0x9F, 0x84, 0xA0, 0x84, 0xA1, /* 0x84-0x87 */
+	0xC5, 0xFC, 0x84, 0xA2, 0x84, 0xA3, 0x84, 0xA4, /* 0x88-0x8B */
+	0x84, 0xA5, 0x84, 0xA6, 0x84, 0xA7, 0x84, 0xA8, /* 0x8C-0x8F */
+	0xD8, 0xE5, 0x84, 0xA9, 0x84, 0xAA, 0xD8, 0xE6, /* 0x90-0x93 */
+	0x84, 0xAB, 0x84, 0xAC, 0x84, 0xAD, 0x84, 0xAE, /* 0x94-0x97 */
+	0x84, 0xAF, 0x84, 0xB0, 0x84, 0xB1, 0xC1, 0xA6, /* 0x98-0x9B */
+	0x84, 0xB2, 0xC8, 0xB0, 0xB0, 0xEC, 0xB9, 0xA6, /* 0x9C-0x9F */
+	0xBC, 0xD3, 0xCE, 0xF1, 0xDB, 0xBD, 0xC1, 0xD3, /* 0xA0-0xA3 */
+	0x84, 0xB3, 0x84, 0xB4, 0x84, 0xB5, 0x84, 0xB6, /* 0xA4-0xA7 */
+	0xB6, 0xAF, 0xD6, 0xFA, 0xC5, 0xAC, 0xBD, 0xD9, /* 0xA8-0xAB */
+	0xDB, 0xBE, 0xDB, 0xBF, 0x84, 0xB7, 0x84, 0xB8, /* 0xAC-0xAF */
+	0x84, 0xB9, 0xC0, 0xF8, 0xBE, 0xA2, 0xC0, 0xCD, /* 0xB0-0xB3 */
+	0x84, 0xBA, 0x84, 0xBB, 0x84, 0xBC, 0x84, 0xBD, /* 0xB4-0xB7 */
+	0x84, 0xBE, 0x84, 0xBF, 0x84, 0xC0, 0x84, 0xC1, /* 0xB8-0xBB */
+	0x84, 0xC2, 0x84, 0xC3, 0xDB, 0xC0, 0xCA, 0xC6, /* 0xBC-0xBF */
+	0x84, 0xC4, 0x84, 0xC5, 0x84, 0xC6, 0xB2, 0xAA, /* 0xC0-0xC3 */
+	0x84, 0xC7, 0x84, 0xC8, 0x84, 0xC9, 0xD3, 0xC2, /* 0xC4-0xC7 */
+	0x84, 0xCA, 0xC3, 0xE3, 0x84, 0xCB, 0xD1, 0xAB, /* 0xC8-0xCB */
+	0x84, 0xCC, 0x84, 0xCD, 0x84, 0xCE, 0x84, 0xCF, /* 0xCC-0xCF */
+	0xDB, 0xC2, 0x84, 0xD0, 0xC0, 0xD5, 0x84, 0xD1, /* 0xD0-0xD3 */
+	0x84, 0xD2, 0x84, 0xD3, 0xDB, 0xC3, 0x84, 0xD4, /* 0xD4-0xD7 */
+	0xBF, 0xB1, 0x84, 0xD5, 0x84, 0xD6, 0x84, 0xD7, /* 0xD8-0xDB */
+	0x84, 0xD8, 0x84, 0xD9, 0x84, 0xDA, 0xC4, 0xBC, /* 0xDC-0xDF */
+	0x84, 0xDB, 0x84, 0xDC, 0x84, 0xDD, 0x84, 0xDE, /* 0xE0-0xE3 */
+	0xC7, 0xDA, 0x84, 0xDF, 0x84, 0xE0, 0x84, 0xE1, /* 0xE4-0xE7 */
+	0x84, 0xE2, 0x84, 0xE3, 0x84, 0xE4, 0x84, 0xE5, /* 0xE8-0xEB */
+	0x84, 0xE6, 0x84, 0xE7, 0x84, 0xE8, 0x84, 0xE9, /* 0xEC-0xEF */
+	0xDB, 0xC4, 0x84, 0xEA, 0x84, 0xEB, 0x84, 0xEC, /* 0xF0-0xF3 */
+	0x84, 0xED, 0x84, 0xEE, 0x84, 0xEF, 0x84, 0xF0, /* 0xF4-0xF7 */
+	0x84, 0xF1, 0xD9, 0xE8, 0xC9, 0xD7, 0x84, 0xF2, /* 0xF8-0xFB */
+	0x84, 0xF3, 0x84, 0xF4, 0xB9, 0xB4, 0xCE, 0xF0, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_53[512] = {
+	0xD4, 0xC8, 0x84, 0xF5, 0x84, 0xF6, 0x84, 0xF7, /* 0x00-0x03 */
+	0x84, 0xF8, 0xB0, 0xFC, 0xB4, 0xD2, 0x84, 0xF9, /* 0x04-0x07 */
+	0xD0, 0xD9, 0x84, 0xFA, 0x84, 0xFB, 0x84, 0xFC, /* 0x08-0x0B */
+	0x84, 0xFD, 0xD9, 0xE9, 0x84, 0xFE, 0xDE, 0xCB, /* 0x0C-0x0F */
+	0xD9, 0xEB, 0x85, 0x40, 0x85, 0x41, 0x85, 0x42, /* 0x10-0x13 */
+	0x85, 0x43, 0xD8, 0xB0, 0xBB, 0xAF, 0xB1, 0xB1, /* 0x14-0x17 */
+	0x85, 0x44, 0xB3, 0xD7, 0xD8, 0xCE, 0x85, 0x45, /* 0x18-0x1B */
+	0x85, 0x46, 0xD4, 0xD1, 0x85, 0x47, 0x85, 0x48, /* 0x1C-0x1F */
+	0xBD, 0xB3, 0xBF, 0xEF, 0x85, 0x49, 0xCF, 0xBB, /* 0x20-0x23 */
+	0x85, 0x4A, 0x85, 0x4B, 0xD8, 0xD0, 0x85, 0x4C, /* 0x24-0x27 */
+	0x85, 0x4D, 0x85, 0x4E, 0xB7, 0xCB, 0x85, 0x4F, /* 0x28-0x2B */
+	0x85, 0x50, 0x85, 0x51, 0xD8, 0xD1, 0x85, 0x52, /* 0x2C-0x2F */
+	0x85, 0x53, 0x85, 0x54, 0x85, 0x55, 0x85, 0x56, /* 0x30-0x33 */
+	0x85, 0x57, 0x85, 0x58, 0x85, 0x59, 0x85, 0x5A, /* 0x34-0x37 */
+	0x85, 0x5B, 0xC6, 0xA5, 0xC7, 0xF8, 0xD2, 0xBD, /* 0x38-0x3B */
+	0x85, 0x5C, 0x85, 0x5D, 0xD8, 0xD2, 0xC4, 0xE4, /* 0x3C-0x3F */
+	0x85, 0x5E, 0xCA, 0xAE, 0x85, 0x5F, 0xC7, 0xA7, /* 0x40-0x43 */
+	0x85, 0x60, 0xD8, 0xA6, 0x85, 0x61, 0xC9, 0xFD, /* 0x44-0x47 */
+	0xCE, 0xE7, 0xBB, 0xDC, 0xB0, 0xEB, 0x85, 0x62, /* 0x48-0x4B */
+	0x85, 0x63, 0x85, 0x64, 0xBB, 0xAA, 0xD0, 0xAD, /* 0x4C-0x4F */
+	0x85, 0x65, 0xB1, 0xB0, 0xD7, 0xE4, 0xD7, 0xBF, /* 0x50-0x53 */
+	0x85, 0x66, 0xB5, 0xA5, 0xC2, 0xF4, 0xC4, 0xCF, /* 0x54-0x57 */
+	0x85, 0x67, 0x85, 0x68, 0xB2, 0xA9, 0x85, 0x69, /* 0x58-0x5B */
+	0xB2, 0xB7, 0x85, 0x6A, 0xB1, 0xE5, 0xDF, 0xB2, /* 0x5C-0x5F */
+	0xD5, 0xBC, 0xBF, 0xA8, 0xC2, 0xAC, 0xD8, 0xD5, /* 0x60-0x63 */
+	0xC2, 0xB1, 0x85, 0x6B, 0xD8, 0xD4, 0xCE, 0xD4, /* 0x64-0x67 */
+	0x85, 0x6C, 0xDA, 0xE0, 0x85, 0x6D, 0xCE, 0xC0, /* 0x68-0x6B */
+	0x85, 0x6E, 0x85, 0x6F, 0xD8, 0xB4, 0xC3, 0xAE, /* 0x6C-0x6F */
+	0xD3, 0xA1, 0xCE, 0xA3, 0x85, 0x70, 0xBC, 0xB4, /* 0x70-0x73 */
+	0xC8, 0xB4, 0xC2, 0xD1, 0x85, 0x71, 0xBE, 0xED, /* 0x74-0x77 */
+	0xD0, 0xB6, 0x85, 0x72, 0xDA, 0xE1, 0x85, 0x73, /* 0x78-0x7B */
+	0x85, 0x74, 0x85, 0x75, 0x85, 0x76, 0xC7, 0xE4, /* 0x7C-0x7F */
+	
+	0x85, 0x77, 0x85, 0x78, 0xB3, 0xA7, 0x85, 0x79, /* 0x80-0x83 */
+	0xB6, 0xF2, 0xCC, 0xFC, 0xC0, 0xFA, 0x85, 0x7A, /* 0x84-0x87 */
+	0x85, 0x7B, 0xC0, 0xF7, 0x85, 0x7C, 0xD1, 0xB9, /* 0x88-0x8B */
+	0xD1, 0xE1, 0xD8, 0xC7, 0x85, 0x7D, 0x85, 0x7E, /* 0x8C-0x8F */
+	0x85, 0x80, 0x85, 0x81, 0x85, 0x82, 0x85, 0x83, /* 0x90-0x93 */
+	0x85, 0x84, 0xB2, 0xDE, 0x85, 0x85, 0x85, 0x86, /* 0x94-0x97 */
+	0xC0, 0xE5, 0x85, 0x87, 0xBA, 0xF1, 0x85, 0x88, /* 0x98-0x9B */
+	0x85, 0x89, 0xD8, 0xC8, 0x85, 0x8A, 0xD4, 0xAD, /* 0x9C-0x9F */
+	0x85, 0x8B, 0x85, 0x8C, 0xCF, 0xE1, 0xD8, 0xC9, /* 0xA0-0xA3 */
+	0x85, 0x8D, 0xD8, 0xCA, 0xCF, 0xC3, 0x85, 0x8E, /* 0xA4-0xA7 */
+	0xB3, 0xF8, 0xBE, 0xC7, 0x85, 0x8F, 0x85, 0x90, /* 0xA8-0xAB */
+	0x85, 0x91, 0x85, 0x92, 0xD8, 0xCB, 0x85, 0x93, /* 0xAC-0xAF */
+	0x85, 0x94, 0x85, 0x95, 0x85, 0x96, 0x85, 0x97, /* 0xB0-0xB3 */
+	0x85, 0x98, 0x85, 0x99, 0xDB, 0xCC, 0x85, 0x9A, /* 0xB4-0xB7 */
+	0x85, 0x9B, 0x85, 0x9C, 0x85, 0x9D, 0xC8, 0xA5, /* 0xB8-0xBB */
+	0x85, 0x9E, 0x85, 0x9F, 0x85, 0xA0, 0xCF, 0xD8, /* 0xBC-0xBF */
+	0x85, 0xA1, 0xC8, 0xFE, 0xB2, 0xCE, 0x85, 0xA2, /* 0xC0-0xC3 */
+	0x85, 0xA3, 0x85, 0xA4, 0x85, 0xA5, 0x85, 0xA6, /* 0xC4-0xC7 */
+	0xD3, 0xD6, 0xB2, 0xE6, 0xBC, 0xB0, 0xD3, 0xD1, /* 0xC8-0xCB */
+	0xCB, 0xAB, 0xB7, 0xB4, 0x85, 0xA7, 0x85, 0xA8, /* 0xCC-0xCF */
+	0x85, 0xA9, 0xB7, 0xA2, 0x85, 0xAA, 0x85, 0xAB, /* 0xD0-0xD3 */
+	0xCA, 0xE5, 0x85, 0xAC, 0xC8, 0xA1, 0xCA, 0xDC, /* 0xD4-0xD7 */
+	0xB1, 0xE4, 0xD0, 0xF0, 0x85, 0xAD, 0xC5, 0xD1, /* 0xD8-0xDB */
+	0x85, 0xAE, 0x85, 0xAF, 0x85, 0xB0, 0xDB, 0xC5, /* 0xDC-0xDF */
+	0xB5, 0xFE, 0x85, 0xB1, 0x85, 0xB2, 0xBF, 0xDA, /* 0xE0-0xE3 */
+	0xB9, 0xC5, 0xBE, 0xE4, 0xC1, 0xED, 0x85, 0xB3, /* 0xE4-0xE7 */
+	0xDF, 0xB6, 0xDF, 0xB5, 0xD6, 0xBB, 0xBD, 0xD0, /* 0xE8-0xEB */
+	0xD5, 0xD9, 0xB0, 0xC8, 0xB6, 0xA3, 0xBF, 0xC9, /* 0xEC-0xEF */
+	0xCC, 0xA8, 0xDF, 0xB3, 0xCA, 0xB7, 0xD3, 0xD2, /* 0xF0-0xF3 */
+	0x85, 0xB4, 0xD8, 0xCF, 0xD2, 0xB6, 0xBA, 0xC5, /* 0xF4-0xF7 */
+	0xCB, 0xBE, 0xCC, 0xBE, 0x85, 0xB5, 0xDF, 0xB7, /* 0xF8-0xFB */
+	0xB5, 0xF0, 0xDF, 0xB4, 0x85, 0xB6, 0x85, 0xB7, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_54[512] = {
+	0x85, 0xB8, 0xD3, 0xF5, 0x85, 0xB9, 0xB3, 0xD4, /* 0x00-0x03 */
+	0xB8, 0xF7, 0x85, 0xBA, 0xDF, 0xBA, 0x85, 0xBB, /* 0x04-0x07 */
+	0xBA, 0xCF, 0xBC, 0xAA, 0xB5, 0xF5, 0x85, 0xBC, /* 0x08-0x0B */
+	0xCD, 0xAC, 0xC3, 0xFB, 0xBA, 0xF3, 0xC0, 0xF4, /* 0x0C-0x0F */
+	0xCD, 0xC2, 0xCF, 0xF2, 0xDF, 0xB8, 0xCF, 0xC5, /* 0x10-0x13 */
+	0x85, 0xBD, 0xC2, 0xC0, 0xDF, 0xB9, 0xC2, 0xF0, /* 0x14-0x17 */
+	0x85, 0xBE, 0x85, 0xBF, 0x85, 0xC0, 0xBE, 0xFD, /* 0x18-0x1B */
+	0x85, 0xC1, 0xC1, 0xDF, 0xCD, 0xCC, 0xD2, 0xF7, /* 0x1C-0x1F */
+	0xB7, 0xCD, 0xDF, 0xC1, 0x85, 0xC2, 0xDF, 0xC4, /* 0x20-0x23 */
+	0x85, 0xC3, 0x85, 0xC4, 0xB7, 0xF1, 0xB0, 0xC9, /* 0x24-0x27 */
+	0xB6, 0xD6, 0xB7, 0xD4, 0x85, 0xC5, 0xBA, 0xAC, /* 0x28-0x2B */
+	0xCC, 0xFD, 0xBF, 0xD4, 0xCB, 0xB1, 0xC6, 0xF4, /* 0x2C-0x2F */
+	0x85, 0xC6, 0xD6, 0xA8, 0xDF, 0xC5, 0x85, 0xC7, /* 0x30-0x33 */
+	0xCE, 0xE2, 0xB3, 0xB3, 0x85, 0xC8, 0x85, 0xC9, /* 0x34-0x37 */
+	0xCE, 0xFC, 0xB4, 0xB5, 0x85, 0xCA, 0xCE, 0xC7, /* 0x38-0x3B */
+	0xBA, 0xF0, 0x85, 0xCB, 0xCE, 0xE1, 0x85, 0xCC, /* 0x3C-0x3F */
+	0xD1, 0xBD, 0x85, 0xCD, 0x85, 0xCE, 0xDF, 0xC0, /* 0x40-0x43 */
+	0x85, 0xCF, 0x85, 0xD0, 0xB4, 0xF4, 0x85, 0xD1, /* 0x44-0x47 */
+	0xB3, 0xCA, 0x85, 0xD2, 0xB8, 0xE6, 0xDF, 0xBB, /* 0x48-0x4B */
+	0x85, 0xD3, 0x85, 0xD4, 0x85, 0xD5, 0x85, 0xD6, /* 0x4C-0x4F */
+	0xC4, 0xC5, 0x85, 0xD7, 0xDF, 0xBC, 0xDF, 0xBD, /* 0x50-0x53 */
+	0xDF, 0xBE, 0xC5, 0xBB, 0xDF, 0xBF, 0xDF, 0xC2, /* 0x54-0x57 */
+	0xD4, 0xB1, 0xDF, 0xC3, 0x85, 0xD8, 0xC7, 0xBA, /* 0x58-0x5B */
+	0xCE, 0xD8, 0x85, 0xD9, 0x85, 0xDA, 0x85, 0xDB, /* 0x5C-0x5F */
+	0x85, 0xDC, 0x85, 0xDD, 0xC4, 0xD8, 0x85, 0xDE, /* 0x60-0x63 */
+	0xDF, 0xCA, 0x85, 0xDF, 0xDF, 0xCF, 0x85, 0xE0, /* 0x64-0x67 */
+	0xD6, 0xDC, 0x85, 0xE1, 0x85, 0xE2, 0x85, 0xE3, /* 0x68-0x6B */
+	0x85, 0xE4, 0x85, 0xE5, 0x85, 0xE6, 0x85, 0xE7, /* 0x6C-0x6F */
+	0x85, 0xE8, 0xDF, 0xC9, 0xDF, 0xDA, 0xCE, 0xB6, /* 0x70-0x73 */
+	0x85, 0xE9, 0xBA, 0xC7, 0xDF, 0xCE, 0xDF, 0xC8, /* 0x74-0x77 */
+	0xC5, 0xDE, 0x85, 0xEA, 0x85, 0xEB, 0xC9, 0xEB, /* 0x78-0x7B */
+	0xBA, 0xF4, 0xC3, 0xFC, 0x85, 0xEC, 0x85, 0xED, /* 0x7C-0x7F */
+	
+	0xBE, 0xD7, 0x85, 0xEE, 0xDF, 0xC6, 0x85, 0xEF, /* 0x80-0x83 */
+	0xDF, 0xCD, 0x85, 0xF0, 0xC5, 0xD8, 0x85, 0xF1, /* 0x84-0x87 */
+	0x85, 0xF2, 0x85, 0xF3, 0x85, 0xF4, 0xD5, 0xA6, /* 0x88-0x8B */
+	0xBA, 0xCD, 0x85, 0xF5, 0xBE, 0xCC, 0xD3, 0xBD, /* 0x8C-0x8F */
+	0xB8, 0xC0, 0x85, 0xF6, 0xD6, 0xE4, 0x85, 0xF7, /* 0x90-0x93 */
+	0xDF, 0xC7, 0xB9, 0xBE, 0xBF, 0xA7, 0x85, 0xF8, /* 0x94-0x97 */
+	0x85, 0xF9, 0xC1, 0xFC, 0xDF, 0xCB, 0xDF, 0xCC, /* 0x98-0x9B */
+	0x85, 0xFA, 0xDF, 0xD0, 0x85, 0xFB, 0x85, 0xFC, /* 0x9C-0x9F */
+	0x85, 0xFD, 0x85, 0xFE, 0x86, 0x40, 0xDF, 0xDB, /* 0xA0-0xA3 */
+	0xDF, 0xE5, 0x86, 0x41, 0xDF, 0xD7, 0xDF, 0xD6, /* 0xA4-0xA7 */
+	0xD7, 0xC9, 0xDF, 0xE3, 0xDF, 0xE4, 0xE5, 0xEB, /* 0xA8-0xAB */
+	0xD2, 0xA7, 0xDF, 0xD2, 0x86, 0x42, 0xBF, 0xA9, /* 0xAC-0xAF */
+	0x86, 0x43, 0xD4, 0xDB, 0x86, 0x44, 0xBF, 0xC8, /* 0xB0-0xB3 */
+	0xDF, 0xD4, 0x86, 0x45, 0x86, 0x46, 0x86, 0x47, /* 0xB4-0xB7 */
+	0xCF, 0xCC, 0x86, 0x48, 0x86, 0x49, 0xDF, 0xDD, /* 0xB8-0xBB */
+	0x86, 0x4A, 0xD1, 0xCA, 0x86, 0x4B, 0xDF, 0xDE, /* 0xBC-0xBF */
+	0xB0, 0xA7, 0xC6, 0xB7, 0xDF, 0xD3, 0x86, 0x4C, /* 0xC0-0xC3 */
+	0xBA, 0xE5, 0x86, 0x4D, 0xB6, 0xDF, 0xCD, 0xDB, /* 0xC4-0xC7 */
+	0xB9, 0xFE, 0xD4, 0xD5, 0x86, 0x4E, 0x86, 0x4F, /* 0xC8-0xCB */
+	0xDF, 0xDF, 0xCF, 0xEC, 0xB0, 0xA5, 0xDF, 0xE7, /* 0xCC-0xCF */
+	0xDF, 0xD1, 0xD1, 0xC6, 0xDF, 0xD5, 0xDF, 0xD8, /* 0xD0-0xD3 */
+	0xDF, 0xD9, 0xDF, 0xDC, 0x86, 0x50, 0xBB, 0xA9, /* 0xD4-0xD7 */
+	0x86, 0x51, 0xDF, 0xE0, 0xDF, 0xE1, 0x86, 0x52, /* 0xD8-0xDB */
+	0xDF, 0xE2, 0xDF, 0xE6, 0xDF, 0xE8, 0xD3, 0xB4, /* 0xDC-0xDF */
+	0x86, 0x53, 0x86, 0x54, 0x86, 0x55, 0x86, 0x56, /* 0xE0-0xE3 */
+	0x86, 0x57, 0xB8, 0xE7, 0xC5, 0xB6, 0xDF, 0xEA, /* 0xE4-0xE7 */
+	0xC9, 0xDA, 0xC1, 0xA8, 0xC4, 0xC4, 0x86, 0x58, /* 0xE8-0xEB */
+	0x86, 0x59, 0xBF, 0xDE, 0xCF, 0xF8, 0x86, 0x5A, /* 0xEC-0xEF */
+	0x86, 0x5B, 0x86, 0x5C, 0xD5, 0xDC, 0xDF, 0xEE, /* 0xF0-0xF3 */
+	0x86, 0x5D, 0x86, 0x5E, 0x86, 0x5F, 0x86, 0x60, /* 0xF4-0xF7 */
+	0x86, 0x61, 0x86, 0x62, 0xB2, 0xB8, 0x86, 0x63, /* 0xF8-0xFB */
+	0xBA, 0xDF, 0xDF, 0xEC, 0x86, 0x64, 0xDB, 0xC1, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_55[512] = {
+	0x86, 0x65, 0xD1, 0xE4, 0x86, 0x66, 0x86, 0x67, /* 0x00-0x03 */
+	0x86, 0x68, 0x86, 0x69, 0xCB, 0xF4, 0xB4, 0xBD, /* 0x04-0x07 */
+	0x86, 0x6A, 0xB0, 0xA6, 0x86, 0x6B, 0x86, 0x6C, /* 0x08-0x0B */
+	0x86, 0x6D, 0x86, 0x6E, 0x86, 0x6F, 0xDF, 0xF1, /* 0x0C-0x0F */
+	0xCC, 0xC6, 0xDF, 0xF2, 0x86, 0x70, 0x86, 0x71, /* 0x10-0x13 */
+	0xDF, 0xED, 0x86, 0x72, 0x86, 0x73, 0x86, 0x74, /* 0x14-0x17 */
+	0x86, 0x75, 0x86, 0x76, 0x86, 0x77, 0xDF, 0xE9, /* 0x18-0x1B */
+	0x86, 0x78, 0x86, 0x79, 0x86, 0x7A, 0x86, 0x7B, /* 0x1C-0x1F */
+	0xDF, 0xEB, 0x86, 0x7C, 0xDF, 0xEF, 0xDF, 0xF0, /* 0x20-0x23 */
+	0xBB, 0xBD, 0x86, 0x7D, 0x86, 0x7E, 0xDF, 0xF3, /* 0x24-0x27 */
+	0x86, 0x80, 0x86, 0x81, 0xDF, 0xF4, 0x86, 0x82, /* 0x28-0x2B */
+	0xBB, 0xA3, 0x86, 0x83, 0xCA, 0xDB, 0xCE, 0xA8, /* 0x2C-0x2F */
+	0xE0, 0xA7, 0xB3, 0xAA, 0x86, 0x84, 0xE0, 0xA6, /* 0x30-0x33 */
+	0x86, 0x85, 0x86, 0x86, 0x86, 0x87, 0xE0, 0xA1, /* 0x34-0x37 */
+	0x86, 0x88, 0x86, 0x89, 0x86, 0x8A, 0x86, 0x8B, /* 0x38-0x3B */
+	0xDF, 0xFE, 0x86, 0x8C, 0xCD, 0xD9, 0xDF, 0xFC, /* 0x3C-0x3F */
+	0x86, 0x8D, 0xDF, 0xFA, 0x86, 0x8E, 0xBF, 0xD0, /* 0x40-0x43 */
+	0xD7, 0xC4, 0x86, 0x8F, 0xC9, 0xCC, 0x86, 0x90, /* 0x44-0x47 */
+	0x86, 0x91, 0xDF, 0xF8, 0xB0, 0xA1, 0x86, 0x92, /* 0x48-0x4B */
+	0x86, 0x93, 0x86, 0x94, 0x86, 0x95, 0x86, 0x96, /* 0x4C-0x4F */
+	0xDF, 0xFD, 0x86, 0x97, 0x86, 0x98, 0x86, 0x99, /* 0x50-0x53 */
+	0x86, 0x9A, 0xDF, 0xFB, 0xE0, 0xA2, 0x86, 0x9B, /* 0x54-0x57 */
+	0x86, 0x9C, 0x86, 0x9D, 0x86, 0x9E, 0x86, 0x9F, /* 0x58-0x5B */
+	0xE0, 0xA8, 0x86, 0xA0, 0x86, 0xA1, 0x86, 0xA2, /* 0x5C-0x5F */
+	0x86, 0xA3, 0xB7, 0xC8, 0x86, 0xA4, 0x86, 0xA5, /* 0x60-0x63 */
+	0xC6, 0xA1, 0xC9, 0xB6, 0xC0, 0xB2, 0xDF, 0xF5, /* 0x64-0x67 */
+	0x86, 0xA6, 0x86, 0xA7, 0xC5, 0xBE, 0x86, 0xA8, /* 0x68-0x6B */
+	0xD8, 0xC4, 0xDF, 0xF9, 0xC4, 0xF6, 0x86, 0xA9, /* 0x6C-0x6F */
+	0x86, 0xAA, 0x86, 0xAB, 0x86, 0xAC, 0x86, 0xAD, /* 0x70-0x73 */
+	0x86, 0xAE, 0xE0, 0xA3, 0xE0, 0xA4, 0xE0, 0xA5, /* 0x74-0x77 */
+	0xD0, 0xA5, 0x86, 0xAF, 0x86, 0xB0, 0xE0, 0xB4, /* 0x78-0x7B */
+	0xCC, 0xE4, 0x86, 0xB1, 0xE0, 0xB1, 0x86, 0xB2, /* 0x7C-0x7F */
+	
+	0xBF, 0xA6, 0xE0, 0xAF, 0xCE, 0xB9, 0xE0, 0xAB, /* 0x80-0x83 */
+	0xC9, 0xC6, 0x86, 0xB3, 0x86, 0xB4, 0xC0, 0xAE, /* 0x84-0x87 */
+	0xE0, 0xAE, 0xBA, 0xED, 0xBA, 0xB0, 0xE0, 0xA9, /* 0x88-0x8B */
+	0x86, 0xB5, 0x86, 0xB6, 0x86, 0xB7, 0xDF, 0xF6, /* 0x8C-0x8F */
+	0x86, 0xB8, 0xE0, 0xB3, 0x86, 0xB9, 0x86, 0xBA, /* 0x90-0x93 */
+	0xE0, 0xB8, 0x86, 0xBB, 0x86, 0xBC, 0x86, 0xBD, /* 0x94-0x97 */
+	0xB4, 0xAD, 0xE0, 0xB9, 0x86, 0xBE, 0x86, 0xBF, /* 0x98-0x9B */
+	0xCF, 0xB2, 0xBA, 0xC8, 0x86, 0xC0, 0xE0, 0xB0, /* 0x9C-0x9F */
+	0x86, 0xC1, 0x86, 0xC2, 0x86, 0xC3, 0x86, 0xC4, /* 0xA0-0xA3 */
+	0x86, 0xC5, 0x86, 0xC6, 0x86, 0xC7, 0xD0, 0xFA, /* 0xA4-0xA7 */
+	0x86, 0xC8, 0x86, 0xC9, 0x86, 0xCA, 0x86, 0xCB, /* 0xA8-0xAB */
+	0x86, 0xCC, 0x86, 0xCD, 0x86, 0xCE, 0x86, 0xCF, /* 0xAC-0xAF */
+	0x86, 0xD0, 0xE0, 0xAC, 0x86, 0xD1, 0xD4, 0xFB, /* 0xB0-0xB3 */
+	0x86, 0xD2, 0xDF, 0xF7, 0x86, 0xD3, 0xC5, 0xE7, /* 0xB4-0xB7 */
+	0x86, 0xD4, 0xE0, 0xAD, 0x86, 0xD5, 0xD3, 0xF7, /* 0xB8-0xBB */
+	0x86, 0xD6, 0xE0, 0xB6, 0xE0, 0xB7, 0x86, 0xD7, /* 0xBC-0xBF */
+	0x86, 0xD8, 0x86, 0xD9, 0x86, 0xDA, 0x86, 0xDB, /* 0xC0-0xC3 */
+	0xE0, 0xC4, 0xD0, 0xE1, 0x86, 0xDC, 0x86, 0xDD, /* 0xC4-0xC7 */
+	0x86, 0xDE, 0xE0, 0xBC, 0x86, 0xDF, 0x86, 0xE0, /* 0xC8-0xCB */
+	0xE0, 0xC9, 0xE0, 0xCA, 0x86, 0xE1, 0x86, 0xE2, /* 0xCC-0xCF */
+	0x86, 0xE3, 0xE0, 0xBE, 0xE0, 0xAA, 0xC9, 0xA4, /* 0xD0-0xD3 */
+	0xE0, 0xC1, 0x86, 0xE4, 0xE0, 0xB2, 0x86, 0xE5, /* 0xD4-0xD7 */
+	0x86, 0xE6, 0x86, 0xE7, 0x86, 0xE8, 0x86, 0xE9, /* 0xD8-0xDB */
+	0xCA, 0xC8, 0xE0, 0xC3, 0x86, 0xEA, 0xE0, 0xB5, /* 0xDC-0xDF */
+	0x86, 0xEB, 0xCE, 0xCB, 0x86, 0xEC, 0xCB, 0xC3, /* 0xE0-0xE3 */
+	0xE0, 0xCD, 0xE0, 0xC6, 0xE0, 0xC2, 0x86, 0xED, /* 0xE4-0xE7 */
+	0xE0, 0xCB, 0x86, 0xEE, 0xE0, 0xBA, 0xE0, 0xBF, /* 0xE8-0xEB */
+	0xE0, 0xC0, 0x86, 0xEF, 0x86, 0xF0, 0xE0, 0xC5, /* 0xEC-0xEF */
+	0x86, 0xF1, 0x86, 0xF2, 0xE0, 0xC7, 0xE0, 0xC8, /* 0xF0-0xF3 */
+	0x86, 0xF3, 0xE0, 0xCC, 0x86, 0xF4, 0xE0, 0xBB, /* 0xF4-0xF7 */
+	0x86, 0xF5, 0x86, 0xF6, 0x86, 0xF7, 0x86, 0xF8, /* 0xF8-0xFB */
+	0x86, 0xF9, 0xCB, 0xD4, 0xE0, 0xD5, 0x86, 0xFA, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_56[512] = {
+	0xE0, 0xD6, 0xE0, 0xD2, 0x86, 0xFB, 0x86, 0xFC, /* 0x00-0x03 */
+	0x86, 0xFD, 0x86, 0xFE, 0x87, 0x40, 0x87, 0x41, /* 0x04-0x07 */
+	0xE0, 0xD0, 0xBC, 0xCE, 0x87, 0x42, 0x87, 0x43, /* 0x08-0x0B */
+	0xE0, 0xD1, 0x87, 0x44, 0xB8, 0xC2, 0xD8, 0xC5, /* 0x0C-0x0F */
+	0x87, 0x45, 0x87, 0x46, 0x87, 0x47, 0x87, 0x48, /* 0x10-0x13 */
+	0x87, 0x49, 0x87, 0x4A, 0x87, 0x4B, 0x87, 0x4C, /* 0x14-0x17 */
+	0xD0, 0xEA, 0x87, 0x4D, 0x87, 0x4E, 0xC2, 0xEF, /* 0x18-0x1B */
+	0x87, 0x4F, 0x87, 0x50, 0xE0, 0xCF, 0xE0, 0xBD, /* 0x1C-0x1F */
+	0x87, 0x51, 0x87, 0x52, 0x87, 0x53, 0xE0, 0xD4, /* 0x20-0x23 */
+	0xE0, 0xD3, 0x87, 0x54, 0x87, 0x55, 0xE0, 0xD7, /* 0x24-0x27 */
+	0x87, 0x56, 0x87, 0x57, 0x87, 0x58, 0x87, 0x59, /* 0x28-0x2B */
+	0xE0, 0xDC, 0xE0, 0xD8, 0x87, 0x5A, 0x87, 0x5B, /* 0x2C-0x2F */
+	0x87, 0x5C, 0xD6, 0xF6, 0xB3, 0xB0, 0x87, 0x5D, /* 0x30-0x33 */
+	0xD7, 0xEC, 0x87, 0x5E, 0xCB, 0xBB, 0x87, 0x5F, /* 0x34-0x37 */
+	0x87, 0x60, 0xE0, 0xDA, 0x87, 0x61, 0xCE, 0xFB, /* 0x38-0x3B */
+	0x87, 0x62, 0x87, 0x63, 0x87, 0x64, 0xBA, 0xD9, /* 0x3C-0x3F */
+	0x87, 0x65, 0x87, 0x66, 0x87, 0x67, 0x87, 0x68, /* 0x40-0x43 */
+	0x87, 0x69, 0x87, 0x6A, 0x87, 0x6B, 0x87, 0x6C, /* 0x44-0x47 */
+	0x87, 0x6D, 0x87, 0x6E, 0x87, 0x6F, 0x87, 0x70, /* 0x48-0x4B */
+	0xE0, 0xE1, 0xE0, 0xDD, 0xD2, 0xAD, 0x87, 0x71, /* 0x4C-0x4F */
+	0x87, 0x72, 0x87, 0x73, 0x87, 0x74, 0x87, 0x75, /* 0x50-0x53 */
+	0xE0, 0xE2, 0x87, 0x76, 0x87, 0x77, 0xE0, 0xDB, /* 0x54-0x57 */
+	0xE0, 0xD9, 0xE0, 0xDF, 0x87, 0x78, 0x87, 0x79, /* 0x58-0x5B */
+	0xE0, 0xE0, 0x87, 0x7A, 0x87, 0x7B, 0x87, 0x7C, /* 0x5C-0x5F */
+	0x87, 0x7D, 0x87, 0x7E, 0xE0, 0xDE, 0x87, 0x80, /* 0x60-0x63 */
+	0xE0, 0xE4, 0x87, 0x81, 0x87, 0x82, 0x87, 0x83, /* 0x64-0x67 */
+	0xC6, 0xF7, 0xD8, 0xAC, 0xD4, 0xEB, 0xE0, 0xE6, /* 0x68-0x6B */
+	0xCA, 0xC9, 0x87, 0x84, 0x87, 0x85, 0x87, 0x86, /* 0x6C-0x6F */
+	0x87, 0x87, 0xE0, 0xE5, 0x87, 0x88, 0x87, 0x89, /* 0x70-0x73 */
+	0x87, 0x8A, 0x87, 0x8B, 0xB8, 0xC1, 0x87, 0x8C, /* 0x74-0x77 */
+	0x87, 0x8D, 0x87, 0x8E, 0x87, 0x8F, 0xE0, 0xE7, /* 0x78-0x7B */
+	0xE0, 0xE8, 0x87, 0x90, 0x87, 0x91, 0x87, 0x92, /* 0x7C-0x7F */
+	
+	0x87, 0x93, 0x87, 0x94, 0x87, 0x95, 0x87, 0x96, /* 0x80-0x83 */
+	0x87, 0x97, 0xE0, 0xE9, 0xE0, 0xE3, 0x87, 0x98, /* 0x84-0x87 */
+	0x87, 0x99, 0x87, 0x9A, 0x87, 0x9B, 0x87, 0x9C, /* 0x88-0x8B */
+	0x87, 0x9D, 0x87, 0x9E, 0xBA, 0xBF, 0xCC, 0xE7, /* 0x8C-0x8F */
+	0x87, 0x9F, 0x87, 0xA0, 0x87, 0xA1, 0xE0, 0xEA, /* 0x90-0x93 */
+	0x87, 0xA2, 0x87, 0xA3, 0x87, 0xA4, 0x87, 0xA5, /* 0x94-0x97 */
+	0x87, 0xA6, 0x87, 0xA7, 0x87, 0xA8, 0x87, 0xA9, /* 0x98-0x9B */
+	0x87, 0xAA, 0x87, 0xAB, 0x87, 0xAC, 0x87, 0xAD, /* 0x9C-0x9F */
+	0x87, 0xAE, 0x87, 0xAF, 0x87, 0xB0, 0xCF, 0xF9, /* 0xA0-0xA3 */
+	0x87, 0xB1, 0x87, 0xB2, 0x87, 0xB3, 0x87, 0xB4, /* 0xA4-0xA7 */
+	0x87, 0xB5, 0x87, 0xB6, 0x87, 0xB7, 0x87, 0xB8, /* 0xA8-0xAB */
+	0x87, 0xB9, 0x87, 0xBA, 0x87, 0xBB, 0xE0, 0xEB, /* 0xAC-0xAF */
+	0x87, 0xBC, 0x87, 0xBD, 0x87, 0xBE, 0x87, 0xBF, /* 0xB0-0xB3 */
+	0x87, 0xC0, 0x87, 0xC1, 0x87, 0xC2, 0xC8, 0xC2, /* 0xB4-0xB7 */
+	0x87, 0xC3, 0x87, 0xC4, 0x87, 0xC5, 0x87, 0xC6, /* 0xB8-0xBB */
+	0xBD, 0xC0, 0x87, 0xC7, 0x87, 0xC8, 0x87, 0xC9, /* 0xBC-0xBF */
+	0x87, 0xCA, 0x87, 0xCB, 0x87, 0xCC, 0x87, 0xCD, /* 0xC0-0xC3 */
+	0x87, 0xCE, 0x87, 0xCF, 0x87, 0xD0, 0x87, 0xD1, /* 0xC4-0xC7 */
+	0x87, 0xD2, 0x87, 0xD3, 0xC4, 0xD2, 0x87, 0xD4, /* 0xC8-0xCB */
+	0x87, 0xD5, 0x87, 0xD6, 0x87, 0xD7, 0x87, 0xD8, /* 0xCC-0xCF */
+	0x87, 0xD9, 0x87, 0xDA, 0x87, 0xDB, 0x87, 0xDC, /* 0xD0-0xD3 */
+	0xE0, 0xEC, 0x87, 0xDD, 0x87, 0xDE, 0xE0, 0xED, /* 0xD4-0xD7 */
+	0x87, 0xDF, 0x87, 0xE0, 0xC7, 0xF4, 0xCB, 0xC4, /* 0xD8-0xDB */
+	0x87, 0xE1, 0xE0, 0xEE, 0xBB, 0xD8, 0xD8, 0xB6, /* 0xDC-0xDF */
+	0xD2, 0xF2, 0xE0, 0xEF, 0xCD, 0xC5, 0x87, 0xE2, /* 0xE0-0xE3 */
+	0xB6, 0xDA, 0x87, 0xE3, 0x87, 0xE4, 0x87, 0xE5, /* 0xE4-0xE7 */
+	0x87, 0xE6, 0x87, 0xE7, 0x87, 0xE8, 0xE0, 0xF1, /* 0xE8-0xEB */
+	0x87, 0xE9, 0xD4, 0xB0, 0x87, 0xEA, 0x87, 0xEB, /* 0xEC-0xEF */
+	0xC0, 0xA7, 0xB4, 0xD1, 0x87, 0xEC, 0x87, 0xED, /* 0xF0-0xF3 */
+	0xCE, 0xA7, 0xE0, 0xF0, 0x87, 0xEE, 0x87, 0xEF, /* 0xF4-0xF7 */
+	0x87, 0xF0, 0xE0, 0xF2, 0xB9, 0xCC, 0x87, 0xF1, /* 0xF8-0xFB */
+	0x87, 0xF2, 0xB9, 0xFA, 0xCD, 0xBC, 0xE0, 0xF3, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_57[512] = {
+	0x87, 0xF3, 0x87, 0xF4, 0x87, 0xF5, 0xC6, 0xD4, /* 0x00-0x03 */
+	0xE0, 0xF4, 0x87, 0xF6, 0xD4, 0xB2, 0x87, 0xF7, /* 0x04-0x07 */
+	0xC8, 0xA6, 0xE0, 0xF6, 0xE0, 0xF5, 0x87, 0xF8, /* 0x08-0x0B */
+	0x87, 0xF9, 0x87, 0xFA, 0x87, 0xFB, 0x87, 0xFC, /* 0x0C-0x0F */
+	0x87, 0xFD, 0x87, 0xFE, 0x88, 0x40, 0x88, 0x41, /* 0x10-0x13 */
+	0x88, 0x42, 0x88, 0x43, 0x88, 0x44, 0x88, 0x45, /* 0x14-0x17 */
+	0x88, 0x46, 0x88, 0x47, 0x88, 0x48, 0x88, 0x49, /* 0x18-0x1B */
+	0xE0, 0xF7, 0x88, 0x4A, 0x88, 0x4B, 0xCD, 0xC1, /* 0x1C-0x1F */
+	0x88, 0x4C, 0x88, 0x4D, 0x88, 0x4E, 0xCA, 0xA5, /* 0x20-0x23 */
+	0x88, 0x4F, 0x88, 0x50, 0x88, 0x51, 0x88, 0x52, /* 0x24-0x27 */
+	0xD4, 0xDA, 0xDB, 0xD7, 0xDB, 0xD9, 0x88, 0x53, /* 0x28-0x2B */
+	0xDB, 0xD8, 0xB9, 0xE7, 0xDB, 0xDC, 0xDB, 0xDD, /* 0x2C-0x2F */
+	0xB5, 0xD8, 0x88, 0x54, 0x88, 0x55, 0xDB, 0xDA, /* 0x30-0x33 */
+	0x88, 0x56, 0x88, 0x57, 0x88, 0x58, 0x88, 0x59, /* 0x34-0x37 */
+	0x88, 0x5A, 0xDB, 0xDB, 0xB3, 0xA1, 0xDB, 0xDF, /* 0x38-0x3B */
+	0x88, 0x5B, 0x88, 0x5C, 0xBB, 0xF8, 0x88, 0x5D, /* 0x3C-0x3F */
+	0xD6, 0xB7, 0x88, 0x5E, 0xDB, 0xE0, 0x88, 0x5F, /* 0x40-0x43 */
+	0x88, 0x60, 0x88, 0x61, 0x88, 0x62, 0xBE, 0xF9, /* 0x44-0x47 */
+	0x88, 0x63, 0x88, 0x64, 0xB7, 0xBB, 0x88, 0x65, /* 0x48-0x4B */
+	0xDB, 0xD0, 0xCC, 0xAE, 0xBF, 0xB2, 0xBB, 0xB5, /* 0x4C-0x4F */
+	0xD7, 0xF8, 0xBF, 0xD3, 0x88, 0x66, 0x88, 0x67, /* 0x50-0x53 */
+	0x88, 0x68, 0x88, 0x69, 0x88, 0x6A, 0xBF, 0xE9, /* 0x54-0x57 */
+	0x88, 0x6B, 0x88, 0x6C, 0xBC, 0xE1, 0xCC, 0xB3, /* 0x58-0x5B */
+	0xDB, 0xDE, 0xB0, 0xD3, 0xCE, 0xEB, 0xB7, 0xD8, /* 0x5C-0x5F */
+	0xD7, 0xB9, 0xC6, 0xC2, 0x88, 0x6D, 0x88, 0x6E, /* 0x60-0x63 */
+	0xC0, 0xA4, 0x88, 0x6F, 0xCC, 0xB9, 0x88, 0x70, /* 0x64-0x67 */
+	0xDB, 0xE7, 0xDB, 0xE1, 0xC6, 0xBA, 0xDB, 0xE3, /* 0x68-0x6B */
+	0x88, 0x71, 0xDB, 0xE8, 0x88, 0x72, 0xC5, 0xF7, /* 0x6C-0x6F */
+	0x88, 0x73, 0x88, 0x74, 0x88, 0x75, 0xDB, 0xEA, /* 0x70-0x73 */
+	0x88, 0x76, 0x88, 0x77, 0xDB, 0xE9, 0xBF, 0xC0, /* 0x74-0x77 */
+	0x88, 0x78, 0x88, 0x79, 0x88, 0x7A, 0xDB, 0xE6, /* 0x78-0x7B */
+	0xDB, 0xE5, 0x88, 0x7B, 0x88, 0x7C, 0x88, 0x7D, /* 0x7C-0x7F */
+	
+	0x88, 0x7E, 0x88, 0x80, 0xB4, 0xB9, 0xC0, 0xAC, /* 0x80-0x83 */
+	0xC2, 0xA2, 0xDB, 0xE2, 0xDB, 0xE4, 0x88, 0x81, /* 0x84-0x87 */
+	0x88, 0x82, 0x88, 0x83, 0x88, 0x84, 0xD0, 0xCD, /* 0x88-0x8B */
+	0xDB, 0xED, 0x88, 0x85, 0x88, 0x86, 0x88, 0x87, /* 0x8C-0x8F */
+	0x88, 0x88, 0x88, 0x89, 0xC0, 0xDD, 0xDB, 0xF2, /* 0x90-0x93 */
+	0x88, 0x8A, 0x88, 0x8B, 0x88, 0x8C, 0x88, 0x8D, /* 0x94-0x97 */
+	0x88, 0x8E, 0x88, 0x8F, 0x88, 0x90, 0xB6, 0xE2, /* 0x98-0x9B */
+	0x88, 0x91, 0x88, 0x92, 0x88, 0x93, 0x88, 0x94, /* 0x9C-0x9F */
+	0xDB, 0xF3, 0xDB, 0xD2, 0xB9, 0xB8, 0xD4, 0xAB, /* 0xA0-0xA3 */
+	0xDB, 0xEC, 0x88, 0x95, 0xBF, 0xD1, 0xDB, 0xF0, /* 0xA4-0xA7 */
+	0x88, 0x96, 0xDB, 0xD1, 0x88, 0x97, 0xB5, 0xE6, /* 0xA8-0xAB */
+	0x88, 0x98, 0xDB, 0xEB, 0xBF, 0xE5, 0x88, 0x99, /* 0xAC-0xAF */
+	0x88, 0x9A, 0x88, 0x9B, 0xDB, 0xEE, 0x88, 0x9C, /* 0xB0-0xB3 */
+	0xDB, 0xF1, 0x88, 0x9D, 0x88, 0x9E, 0x88, 0x9F, /* 0xB4-0xB7 */
+	0xDB, 0xF9, 0x88, 0xA0, 0x88, 0xA1, 0x88, 0xA2, /* 0xB8-0xBB */
+	0x88, 0xA3, 0x88, 0xA4, 0x88, 0xA5, 0x88, 0xA6, /* 0xBC-0xBF */
+	0x88, 0xA7, 0x88, 0xA8, 0xB9, 0xA1, 0xB0, 0xA3, /* 0xC0-0xC3 */
+	0x88, 0xA9, 0x88, 0xAA, 0x88, 0xAB, 0x88, 0xAC, /* 0xC4-0xC7 */
+	0x88, 0xAD, 0x88, 0xAE, 0x88, 0xAF, 0xC2, 0xF1, /* 0xC8-0xCB */
+	0x88, 0xB0, 0x88, 0xB1, 0xB3, 0xC7, 0xDB, 0xEF, /* 0xCC-0xCF */
+	0x88, 0xB2, 0x88, 0xB3, 0xDB, 0xF8, 0x88, 0xB4, /* 0xD0-0xD3 */
+	0xC6, 0xD2, 0xDB, 0xF4, 0x88, 0xB5, 0x88, 0xB6, /* 0xD4-0xD7 */
+	0xDB, 0xF5, 0xDB, 0xF7, 0xDB, 0xF6, 0x88, 0xB7, /* 0xD8-0xDB */
+	0x88, 0xB8, 0xDB, 0xFE, 0x88, 0xB9, 0xD3, 0xF2, /* 0xDC-0xDF */
+	0xB2, 0xBA, 0x88, 0xBA, 0x88, 0xBB, 0x88, 0xBC, /* 0xE0-0xE3 */
+	0xDB, 0xFD, 0x88, 0xBD, 0x88, 0xBE, 0x88, 0xBF, /* 0xE4-0xE7 */
+	0x88, 0xC0, 0x88, 0xC1, 0x88, 0xC2, 0x88, 0xC3, /* 0xE8-0xEB */
+	0x88, 0xC4, 0xDC, 0xA4, 0x88, 0xC5, 0xDB, 0xFB, /* 0xEC-0xEF */
+	0x88, 0xC6, 0x88, 0xC7, 0x88, 0xC8, 0x88, 0xC9, /* 0xF0-0xF3 */
+	0xDB, 0xFA, 0x88, 0xCA, 0x88, 0xCB, 0x88, 0xCC, /* 0xF4-0xF7 */
+	0xDB, 0xFC, 0xC5, 0xE0, 0xBB, 0xF9, 0x88, 0xCD, /* 0xF8-0xFB */
+	0x88, 0xCE, 0xDC, 0xA3, 0x88, 0xCF, 0x88, 0xD0, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_58[512] = {
+	0xDC, 0xA5, 0x88, 0xD1, 0xCC, 0xC3, 0x88, 0xD2, /* 0x00-0x03 */
+	0x88, 0xD3, 0x88, 0xD4, 0xB6, 0xD1, 0xDD, 0xC0, /* 0x04-0x07 */
+	0x88, 0xD5, 0x88, 0xD6, 0x88, 0xD7, 0xDC, 0xA1, /* 0x08-0x0B */
+	0x88, 0xD8, 0xDC, 0xA2, 0x88, 0xD9, 0x88, 0xDA, /* 0x0C-0x0F */
+	0x88, 0xDB, 0xC7, 0xB5, 0x88, 0xDC, 0x88, 0xDD, /* 0x10-0x13 */
+	0x88, 0xDE, 0xB6, 0xE9, 0x88, 0xDF, 0x88, 0xE0, /* 0x14-0x17 */
+	0x88, 0xE1, 0xDC, 0xA7, 0x88, 0xE2, 0x88, 0xE3, /* 0x18-0x1B */
+	0x88, 0xE4, 0x88, 0xE5, 0xDC, 0xA6, 0x88, 0xE6, /* 0x1C-0x1F */
+	0xDC, 0xA9, 0xB1, 0xA4, 0x88, 0xE7, 0x88, 0xE8, /* 0x20-0x23 */
+	0xB5, 0xCC, 0x88, 0xE9, 0x88, 0xEA, 0x88, 0xEB, /* 0x24-0x27 */
+	0x88, 0xEC, 0x88, 0xED, 0xBF, 0xB0, 0x88, 0xEE, /* 0x28-0x2B */
+	0x88, 0xEF, 0x88, 0xF0, 0x88, 0xF1, 0x88, 0xF2, /* 0x2C-0x2F */
+	0xD1, 0xDF, 0x88, 0xF3, 0x88, 0xF4, 0x88, 0xF5, /* 0x30-0x33 */
+	0x88, 0xF6, 0xB6, 0xC2, 0x88, 0xF7, 0x88, 0xF8, /* 0x34-0x37 */
+	0x88, 0xF9, 0x88, 0xFA, 0x88, 0xFB, 0x88, 0xFC, /* 0x38-0x3B */
+	0x88, 0xFD, 0x88, 0xFE, 0x89, 0x40, 0x89, 0x41, /* 0x3C-0x3F */
+	0x89, 0x42, 0x89, 0x43, 0x89, 0x44, 0x89, 0x45, /* 0x40-0x43 */
+	0xDC, 0xA8, 0x89, 0x46, 0x89, 0x47, 0x89, 0x48, /* 0x44-0x47 */
+	0x89, 0x49, 0x89, 0x4A, 0x89, 0x4B, 0x89, 0x4C, /* 0x48-0x4B */
+	0xCB, 0xFA, 0xEB, 0xF3, 0x89, 0x4D, 0x89, 0x4E, /* 0x4C-0x4F */
+	0x89, 0x4F, 0xCB, 0xDC, 0x89, 0x50, 0x89, 0x51, /* 0x50-0x53 */
+	0xCB, 0xFE, 0x89, 0x52, 0x89, 0x53, 0x89, 0x54, /* 0x54-0x57 */
+	0xCC, 0xC1, 0x89, 0x55, 0x89, 0x56, 0x89, 0x57, /* 0x58-0x5B */
+	0x89, 0x58, 0x89, 0x59, 0xC8, 0xFB, 0x89, 0x5A, /* 0x5C-0x5F */
+	0x89, 0x5B, 0x89, 0x5C, 0x89, 0x5D, 0x89, 0x5E, /* 0x60-0x63 */
+	0x89, 0x5F, 0xDC, 0xAA, 0x89, 0x60, 0x89, 0x61, /* 0x64-0x67 */
+	0x89, 0x62, 0x89, 0x63, 0x89, 0x64, 0xCC, 0xEE, /* 0x68-0x6B */
+	0xDC, 0xAB, 0x89, 0x65, 0x89, 0x66, 0x89, 0x67, /* 0x6C-0x6F */
+	0x89, 0x68, 0x89, 0x69, 0x89, 0x6A, 0x89, 0x6B, /* 0x70-0x73 */
+	0x89, 0x6C, 0x89, 0x6D, 0x89, 0x6E, 0x89, 0x6F, /* 0x74-0x77 */
+	0x89, 0x70, 0x89, 0x71, 0x89, 0x72, 0x89, 0x73, /* 0x78-0x7B */
+	0x89, 0x74, 0x89, 0x75, 0xDB, 0xD3, 0x89, 0x76, /* 0x7C-0x7F */
+	
+	0xDC, 0xAF, 0xDC, 0xAC, 0x89, 0x77, 0xBE, 0xB3, /* 0x80-0x83 */
+	0x89, 0x78, 0xCA, 0xFB, 0x89, 0x79, 0x89, 0x7A, /* 0x84-0x87 */
+	0x89, 0x7B, 0xDC, 0xAD, 0x89, 0x7C, 0x89, 0x7D, /* 0x88-0x8B */
+	0x89, 0x7E, 0x89, 0x80, 0x89, 0x81, 0x89, 0x82, /* 0x8C-0x8F */
+	0x89, 0x83, 0x89, 0x84, 0xC9, 0xCA, 0xC4, 0xB9, /* 0x90-0x93 */
+	0x89, 0x85, 0x89, 0x86, 0x89, 0x87, 0x89, 0x88, /* 0x94-0x97 */
+	0x89, 0x89, 0xC7, 0xBD, 0xDC, 0xAE, 0x89, 0x8A, /* 0x98-0x9B */
+	0x89, 0x8B, 0x89, 0x8C, 0xD4, 0xF6, 0xD0, 0xE6, /* 0x9C-0x9F */
+	0x89, 0x8D, 0x89, 0x8E, 0x89, 0x8F, 0x89, 0x90, /* 0xA0-0xA3 */
+	0x89, 0x91, 0x89, 0x92, 0x89, 0x93, 0x89, 0x94, /* 0xA4-0xA7 */
+	0xC4, 0xAB, 0xB6, 0xD5, 0x89, 0x95, 0x89, 0x96, /* 0xA8-0xAB */
+	0x89, 0x97, 0x89, 0x98, 0x89, 0x99, 0x89, 0x9A, /* 0xAC-0xAF */
+	0x89, 0x9B, 0x89, 0x9C, 0x89, 0x9D, 0x89, 0x9E, /* 0xB0-0xB3 */
+	0x89, 0x9F, 0x89, 0xA0, 0x89, 0xA1, 0x89, 0xA2, /* 0xB4-0xB7 */
+	0x89, 0xA3, 0x89, 0xA4, 0x89, 0xA5, 0x89, 0xA6, /* 0xB8-0xBB */
+	0xDB, 0xD4, 0x89, 0xA7, 0x89, 0xA8, 0x89, 0xA9, /* 0xBC-0xBF */
+	0x89, 0xAA, 0xB1, 0xDA, 0x89, 0xAB, 0x89, 0xAC, /* 0xC0-0xC3 */
+	0x89, 0xAD, 0xDB, 0xD5, 0x89, 0xAE, 0x89, 0xAF, /* 0xC4-0xC7 */
+	0x89, 0xB0, 0x89, 0xB1, 0x89, 0xB2, 0x89, 0xB3, /* 0xC8-0xCB */
+	0x89, 0xB4, 0x89, 0xB5, 0x89, 0xB6, 0x89, 0xB7, /* 0xCC-0xCF */
+	0x89, 0xB8, 0xDB, 0xD6, 0x89, 0xB9, 0x89, 0xBA, /* 0xD0-0xD3 */
+	0x89, 0xBB, 0xBA, 0xBE, 0x89, 0xBC, 0x89, 0xBD, /* 0xD4-0xD7 */
+	0x89, 0xBE, 0x89, 0xBF, 0x89, 0xC0, 0x89, 0xC1, /* 0xD8-0xDB */
+	0x89, 0xC2, 0x89, 0xC3, 0x89, 0xC4, 0x89, 0xC5, /* 0xDC-0xDF */
+	0x89, 0xC6, 0x89, 0xC7, 0x89, 0xC8, 0x89, 0xC9, /* 0xE0-0xE3 */
+	0xC8, 0xC0, 0x89, 0xCA, 0x89, 0xCB, 0x89, 0xCC, /* 0xE4-0xE7 */
+	0x89, 0xCD, 0x89, 0xCE, 0x89, 0xCF, 0xCA, 0xBF, /* 0xE8-0xEB */
+	0xC8, 0xC9, 0x89, 0xD0, 0xD7, 0xB3, 0x89, 0xD1, /* 0xEC-0xEF */
+	0xC9, 0xF9, 0x89, 0xD2, 0x89, 0xD3, 0xBF, 0xC7, /* 0xF0-0xF3 */
+	0x89, 0xD4, 0x89, 0xD5, 0xBA, 0xF8, 0x89, 0xD6, /* 0xF4-0xF7 */
+	0x89, 0xD7, 0xD2, 0xBC, 0x89, 0xD8, 0x89, 0xD9, /* 0xF8-0xFB */
+	0x89, 0xDA, 0x89, 0xDB, 0x89, 0xDC, 0x89, 0xDD, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_59[512] = {
+	0x89, 0xDE, 0x89, 0xDF, 0xE2, 0xBA, 0x89, 0xE0, /* 0x00-0x03 */
+	0xB4, 0xA6, 0x89, 0xE1, 0x89, 0xE2, 0xB1, 0xB8, /* 0x04-0x07 */
+	0x89, 0xE3, 0x89, 0xE4, 0x89, 0xE5, 0x89, 0xE6, /* 0x08-0x0B */
+	0x89, 0xE7, 0xB8, 0xB4, 0x89, 0xE8, 0xCF, 0xC4, /* 0x0C-0x0F */
+	0x89, 0xE9, 0x89, 0xEA, 0x89, 0xEB, 0x89, 0xEC, /* 0x10-0x13 */
+	0xD9, 0xE7, 0xCF, 0xA6, 0xCD, 0xE2, 0x89, 0xED, /* 0x14-0x17 */
+	0x89, 0xEE, 0xD9, 0xED, 0xB6, 0xE0, 0x89, 0xEF, /* 0x18-0x1B */
+	0xD2, 0xB9, 0x89, 0xF0, 0x89, 0xF1, 0xB9, 0xBB, /* 0x1C-0x1F */
+	0x89, 0xF2, 0x89, 0xF3, 0x89, 0xF4, 0x89, 0xF5, /* 0x20-0x23 */
+	0xE2, 0xB9, 0xE2, 0xB7, 0x89, 0xF6, 0xB4, 0xF3, /* 0x24-0x27 */
+	0x89, 0xF7, 0xCC, 0xEC, 0xCC, 0xAB, 0xB7, 0xF2, /* 0x28-0x2B */
+	0x89, 0xF8, 0xD8, 0xB2, 0xD1, 0xEB, 0xBA, 0xBB, /* 0x2C-0x2F */
+	0x89, 0xF9, 0xCA, 0xA7, 0x89, 0xFA, 0x89, 0xFB, /* 0x30-0x33 */
+	0xCD, 0xB7, 0x89, 0xFC, 0x89, 0xFD, 0xD2, 0xC4, /* 0x34-0x37 */
+	0xBF, 0xE4, 0xBC, 0xD0, 0xB6, 0xE1, 0x89, 0xFE, /* 0x38-0x3B */
+	0xDE, 0xC5, 0x8A, 0x40, 0x8A, 0x41, 0x8A, 0x42, /* 0x3C-0x3F */
+	0x8A, 0x43, 0xDE, 0xC6, 0xDB, 0xBC, 0x8A, 0x44, /* 0x40-0x43 */
+	0xD1, 0xD9, 0x8A, 0x45, 0x8A, 0x46, 0xC6, 0xE6, /* 0x44-0x47 */
+	0xC4, 0xCE, 0xB7, 0xEE, 0x8A, 0x47, 0xB7, 0xDC, /* 0x48-0x4B */
+	0x8A, 0x48, 0x8A, 0x49, 0xBF, 0xFC, 0xD7, 0xE0, /* 0x4C-0x4F */
+	0x8A, 0x4A, 0xC6, 0xF5, 0x8A, 0x4B, 0x8A, 0x4C, /* 0x50-0x53 */
+	0xB1, 0xBC, 0xDE, 0xC8, 0xBD, 0xB1, 0xCC, 0xD7, /* 0x54-0x57 */
+	0xDE, 0xCA, 0x8A, 0x4D, 0xDE, 0xC9, 0x8A, 0x4E, /* 0x58-0x5B */
+	0x8A, 0x4F, 0x8A, 0x50, 0x8A, 0x51, 0x8A, 0x52, /* 0x5C-0x5F */
+	0xB5, 0xEC, 0x8A, 0x53, 0xC9, 0xDD, 0x8A, 0x54, /* 0x60-0x63 */
+	0x8A, 0x55, 0xB0, 0xC2, 0x8A, 0x56, 0x8A, 0x57, /* 0x64-0x67 */
+	0x8A, 0x58, 0x8A, 0x59, 0x8A, 0x5A, 0x8A, 0x5B, /* 0x68-0x6B */
+	0x8A, 0x5C, 0x8A, 0x5D, 0x8A, 0x5E, 0x8A, 0x5F, /* 0x6C-0x6F */
+	0x8A, 0x60, 0x8A, 0x61, 0x8A, 0x62, 0xC5, 0xAE, /* 0x70-0x73 */
+	0xC5, 0xAB, 0x8A, 0x63, 0xC4, 0xCC, 0x8A, 0x64, /* 0x74-0x77 */
+	0xBC, 0xE9, 0xCB, 0xFD, 0x8A, 0x65, 0x8A, 0x66, /* 0x78-0x7B */
+	0x8A, 0x67, 0xBA, 0xC3, 0x8A, 0x68, 0x8A, 0x69, /* 0x7C-0x7F */
+	
+	0x8A, 0x6A, 0xE5, 0xF9, 0xC8, 0xE7, 0xE5, 0xFA, /* 0x80-0x83 */
+	0xCD, 0xFD, 0x8A, 0x6B, 0xD7, 0xB1, 0xB8, 0xBE, /* 0x84-0x87 */
+	0xC2, 0xE8, 0x8A, 0x6C, 0xC8, 0xD1, 0x8A, 0x6D, /* 0x88-0x8B */
+	0x8A, 0x6E, 0xE5, 0xFB, 0x8A, 0x6F, 0x8A, 0x70, /* 0x8C-0x8F */
+	0x8A, 0x71, 0x8A, 0x72, 0xB6, 0xCA, 0xBC, 0xCB, /* 0x90-0x93 */
+	0x8A, 0x73, 0x8A, 0x74, 0xD1, 0xFD, 0xE6, 0xA1, /* 0x94-0x97 */
+	0x8A, 0x75, 0xC3, 0xEE, 0x8A, 0x76, 0x8A, 0x77, /* 0x98-0x9B */
+	0x8A, 0x78, 0x8A, 0x79, 0xE6, 0xA4, 0x8A, 0x7A, /* 0x9C-0x9F */
+	0x8A, 0x7B, 0x8A, 0x7C, 0x8A, 0x7D, 0xE5, 0xFE, /* 0xA0-0xA3 */
+	0xE6, 0xA5, 0xCD, 0xD7, 0x8A, 0x7E, 0x8A, 0x80, /* 0xA4-0xA7 */
+	0xB7, 0xC1, 0xE5, 0xFC, 0xE5, 0xFD, 0xE6, 0xA3, /* 0xA8-0xAB */
+	0x8A, 0x81, 0x8A, 0x82, 0xC4, 0xDD, 0xE6, 0xA8, /* 0xAC-0xAF */
+	0x8A, 0x83, 0x8A, 0x84, 0xE6, 0xA7, 0x8A, 0x85, /* 0xB0-0xB3 */
+	0x8A, 0x86, 0x8A, 0x87, 0x8A, 0x88, 0x8A, 0x89, /* 0xB4-0xB7 */
+	0x8A, 0x8A, 0xC3, 0xC3, 0x8A, 0x8B, 0xC6, 0xDE, /* 0xB8-0xBB */
+	0x8A, 0x8C, 0x8A, 0x8D, 0xE6, 0xAA, 0x8A, 0x8E, /* 0xBC-0xBF */
+	0x8A, 0x8F, 0x8A, 0x90, 0x8A, 0x91, 0x8A, 0x92, /* 0xC0-0xC3 */
+	0x8A, 0x93, 0x8A, 0x94, 0xC4, 0xB7, 0x8A, 0x95, /* 0xC4-0xC7 */
+	0x8A, 0x96, 0x8A, 0x97, 0xE6, 0xA2, 0xCA, 0xBC, /* 0xC8-0xCB */
+	0x8A, 0x98, 0x8A, 0x99, 0x8A, 0x9A, 0x8A, 0x9B, /* 0xCC-0xCF */
+	0xBD, 0xE3, 0xB9, 0xC3, 0xE6, 0xA6, 0xD0, 0xD5, /* 0xD0-0xD3 */
+	0xCE, 0xAF, 0x8A, 0x9C, 0x8A, 0x9D, 0xE6, 0xA9, /* 0xD4-0xD7 */
+	0xE6, 0xB0, 0x8A, 0x9E, 0xD2, 0xA6, 0x8A, 0x9F, /* 0xD8-0xDB */
+	0xBD, 0xAA, 0xE6, 0xAD, 0x8A, 0xA0, 0x8A, 0xA1, /* 0xDC-0xDF */
+	0x8A, 0xA2, 0x8A, 0xA3, 0x8A, 0xA4, 0xE6, 0xAF, /* 0xE0-0xE3 */
+	0x8A, 0xA5, 0xC0, 0xD1, 0x8A, 0xA6, 0x8A, 0xA7, /* 0xE4-0xE7 */
+	0xD2, 0xCC, 0x8A, 0xA8, 0x8A, 0xA9, 0x8A, 0xAA, /* 0xE8-0xEB */
+	0xBC, 0xA7, 0x8A, 0xAB, 0x8A, 0xAC, 0x8A, 0xAD, /* 0xEC-0xEF */
+	0x8A, 0xAE, 0x8A, 0xAF, 0x8A, 0xB0, 0x8A, 0xB1, /* 0xF0-0xF3 */
+	0x8A, 0xB2, 0x8A, 0xB3, 0x8A, 0xB4, 0x8A, 0xB5, /* 0xF4-0xF7 */
+	0x8A, 0xB6, 0xE6, 0xB1, 0x8A, 0xB7, 0xD2, 0xF6, /* 0xF8-0xFB */
+	0x8A, 0xB8, 0x8A, 0xB9, 0x8A, 0xBA, 0xD7, 0xCB, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_5A[512] = {
+	0x8A, 0xBB, 0xCD, 0xFE, 0x8A, 0xBC, 0xCD, 0xDE, /* 0x00-0x03 */
+	0xC2, 0xA6, 0xE6, 0xAB, 0xE6, 0xAC, 0xBD, 0xBF, /* 0x04-0x07 */
+	0xE6, 0xAE, 0xE6, 0xB3, 0x8A, 0xBD, 0x8A, 0xBE, /* 0x08-0x0B */
+	0xE6, 0xB2, 0x8A, 0xBF, 0x8A, 0xC0, 0x8A, 0xC1, /* 0x0C-0x0F */
+	0x8A, 0xC2, 0xE6, 0xB6, 0x8A, 0xC3, 0xE6, 0xB8, /* 0x10-0x13 */
+	0x8A, 0xC4, 0x8A, 0xC5, 0x8A, 0xC6, 0x8A, 0xC7, /* 0x14-0x17 */
+	0xC4, 0xEF, 0x8A, 0xC8, 0x8A, 0xC9, 0x8A, 0xCA, /* 0x18-0x1B */
+	0xC4, 0xC8, 0x8A, 0xCB, 0x8A, 0xCC, 0xBE, 0xEA, /* 0x1C-0x1F */
+	0xC9, 0xEF, 0x8A, 0xCD, 0x8A, 0xCE, 0xE6, 0xB7, /* 0x20-0x23 */
+	0x8A, 0xCF, 0xB6, 0xF0, 0x8A, 0xD0, 0x8A, 0xD1, /* 0x24-0x27 */
+	0x8A, 0xD2, 0xC3, 0xE4, 0x8A, 0xD3, 0x8A, 0xD4, /* 0x28-0x2B */
+	0x8A, 0xD5, 0x8A, 0xD6, 0x8A, 0xD7, 0x8A, 0xD8, /* 0x2C-0x2F */
+	0x8A, 0xD9, 0xD3, 0xE9, 0xE6, 0xB4, 0x8A, 0xDA, /* 0x30-0x33 */
+	0xE6, 0xB5, 0x8A, 0xDB, 0xC8, 0xA2, 0x8A, 0xDC, /* 0x34-0x37 */
+	0x8A, 0xDD, 0x8A, 0xDE, 0x8A, 0xDF, 0x8A, 0xE0, /* 0x38-0x3B */
+	0xE6, 0xBD, 0x8A, 0xE1, 0x8A, 0xE2, 0x8A, 0xE3, /* 0x3C-0x3F */
+	0xE6, 0xB9, 0x8A, 0xE4, 0x8A, 0xE5, 0x8A, 0xE6, /* 0x40-0x43 */
+	0x8A, 0xE7, 0x8A, 0xE8, 0xC6, 0xC5, 0x8A, 0xE9, /* 0x44-0x47 */
+	0x8A, 0xEA, 0xCD, 0xF1, 0xE6, 0xBB, 0x8A, 0xEB, /* 0x48-0x4B */
+	0x8A, 0xEC, 0x8A, 0xED, 0x8A, 0xEE, 0x8A, 0xEF, /* 0x4C-0x4F */
+	0x8A, 0xF0, 0x8A, 0xF1, 0x8A, 0xF2, 0x8A, 0xF3, /* 0x50-0x53 */
+	0x8A, 0xF4, 0xE6, 0xBC, 0x8A, 0xF5, 0x8A, 0xF6, /* 0x54-0x57 */
+	0x8A, 0xF7, 0x8A, 0xF8, 0xBB, 0xE9, 0x8A, 0xF9, /* 0x58-0x5B */
+	0x8A, 0xFA, 0x8A, 0xFB, 0x8A, 0xFC, 0x8A, 0xFD, /* 0x5C-0x5F */
+	0x8A, 0xFE, 0x8B, 0x40, 0xE6, 0xBE, 0x8B, 0x41, /* 0x60-0x63 */
+	0x8B, 0x42, 0x8B, 0x43, 0x8B, 0x44, 0xE6, 0xBA, /* 0x64-0x67 */
+	0x8B, 0x45, 0x8B, 0x46, 0xC0, 0xB7, 0x8B, 0x47, /* 0x68-0x6B */
+	0x8B, 0x48, 0x8B, 0x49, 0x8B, 0x4A, 0x8B, 0x4B, /* 0x6C-0x6F */
+	0x8B, 0x4C, 0x8B, 0x4D, 0x8B, 0x4E, 0x8B, 0x4F, /* 0x70-0x73 */
+	0xD3, 0xA4, 0xE6, 0xBF, 0xC9, 0xF4, 0xE6, 0xC3, /* 0x74-0x77 */
+	0x8B, 0x50, 0x8B, 0x51, 0xE6, 0xC4, 0x8B, 0x52, /* 0x78-0x7B */
+	0x8B, 0x53, 0x8B, 0x54, 0x8B, 0x55, 0xD0, 0xF6, /* 0x7C-0x7F */
+	
+	0x8B, 0x56, 0x8B, 0x57, 0x8B, 0x58, 0x8B, 0x59, /* 0x80-0x83 */
+	0x8B, 0x5A, 0x8B, 0x5B, 0x8B, 0x5C, 0x8B, 0x5D, /* 0x84-0x87 */
+	0x8B, 0x5E, 0x8B, 0x5F, 0x8B, 0x60, 0x8B, 0x61, /* 0x88-0x8B */
+	0x8B, 0x62, 0x8B, 0x63, 0x8B, 0x64, 0x8B, 0x65, /* 0x8C-0x8F */
+	0x8B, 0x66, 0x8B, 0x67, 0xC3, 0xBD, 0x8B, 0x68, /* 0x90-0x93 */
+	0x8B, 0x69, 0x8B, 0x6A, 0x8B, 0x6B, 0x8B, 0x6C, /* 0x94-0x97 */
+	0x8B, 0x6D, 0x8B, 0x6E, 0xC3, 0xC4, 0xE6, 0xC2, /* 0x98-0x9B */
+	0x8B, 0x6F, 0x8B, 0x70, 0x8B, 0x71, 0x8B, 0x72, /* 0x9C-0x9F */
+	0x8B, 0x73, 0x8B, 0x74, 0x8B, 0x75, 0x8B, 0x76, /* 0xA0-0xA3 */
+	0x8B, 0x77, 0x8B, 0x78, 0x8B, 0x79, 0x8B, 0x7A, /* 0xA4-0xA7 */
+	0x8B, 0x7B, 0x8B, 0x7C, 0xE6, 0xC1, 0x8B, 0x7D, /* 0xA8-0xAB */
+	0x8B, 0x7E, 0x8B, 0x80, 0x8B, 0x81, 0x8B, 0x82, /* 0xAC-0xAF */
+	0x8B, 0x83, 0x8B, 0x84, 0xE6, 0xC7, 0xCF, 0xB1, /* 0xB0-0xB3 */
+	0x8B, 0x85, 0xEB, 0xF4, 0x8B, 0x86, 0x8B, 0x87, /* 0xB4-0xB7 */
+	0xE6, 0xCA, 0x8B, 0x88, 0x8B, 0x89, 0x8B, 0x8A, /* 0xB8-0xBB */
+	0x8B, 0x8B, 0x8B, 0x8C, 0xE6, 0xC5, 0x8B, 0x8D, /* 0xBC-0xBF */
+	0x8B, 0x8E, 0xBC, 0xDE, 0xC9, 0xA9, 0x8B, 0x8F, /* 0xC0-0xC3 */
+	0x8B, 0x90, 0x8B, 0x91, 0x8B, 0x92, 0x8B, 0x93, /* 0xC4-0xC7 */
+	0x8B, 0x94, 0xBC, 0xB5, 0x8B, 0x95, 0x8B, 0x96, /* 0xC8-0xCB */
+	0xCF, 0xD3, 0x8B, 0x97, 0x8B, 0x98, 0x8B, 0x99, /* 0xCC-0xCF */
+	0x8B, 0x9A, 0x8B, 0x9B, 0xE6, 0xC8, 0x8B, 0x9C, /* 0xD0-0xD3 */
+	0xE6, 0xC9, 0x8B, 0x9D, 0xE6, 0xCE, 0x8B, 0x9E, /* 0xD4-0xD7 */
+	0xE6, 0xD0, 0x8B, 0x9F, 0x8B, 0xA0, 0x8B, 0xA1, /* 0xD8-0xDB */
+	0xE6, 0xD1, 0x8B, 0xA2, 0x8B, 0xA3, 0x8B, 0xA4, /* 0xDC-0xDF */
+	0xE6, 0xCB, 0xB5, 0xD5, 0x8B, 0xA5, 0xE6, 0xCC, /* 0xE0-0xE3 */
+	0x8B, 0xA6, 0x8B, 0xA7, 0xE6, 0xCF, 0x8B, 0xA8, /* 0xE4-0xE7 */
+	0x8B, 0xA9, 0xC4, 0xDB, 0x8B, 0xAA, 0xE6, 0xC6, /* 0xE8-0xEB */
+	0x8B, 0xAB, 0x8B, 0xAC, 0x8B, 0xAD, 0x8B, 0xAE, /* 0xEC-0xEF */
+	0x8B, 0xAF, 0xE6, 0xCD, 0x8B, 0xB0, 0x8B, 0xB1, /* 0xF0-0xF3 */
+	0x8B, 0xB2, 0x8B, 0xB3, 0x8B, 0xB4, 0x8B, 0xB5, /* 0xF4-0xF7 */
+	0x8B, 0xB6, 0x8B, 0xB7, 0x8B, 0xB8, 0x8B, 0xB9, /* 0xF8-0xFB */
+	0x8B, 0xBA, 0x8B, 0xBB, 0x8B, 0xBC, 0x8B, 0xBD, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_5B[512] = {
+	0x8B, 0xBE, 0x8B, 0xBF, 0x8B, 0xC0, 0x8B, 0xC1, /* 0x00-0x03 */
+	0x8B, 0xC2, 0x8B, 0xC3, 0x8B, 0xC4, 0x8B, 0xC5, /* 0x04-0x07 */
+	0x8B, 0xC6, 0xE6, 0xD2, 0x8B, 0xC7, 0x8B, 0xC8, /* 0x08-0x0B */
+	0x8B, 0xC9, 0x8B, 0xCA, 0x8B, 0xCB, 0x8B, 0xCC, /* 0x0C-0x0F */
+	0x8B, 0xCD, 0x8B, 0xCE, 0x8B, 0xCF, 0x8B, 0xD0, /* 0x10-0x13 */
+	0x8B, 0xD1, 0x8B, 0xD2, 0xE6, 0xD4, 0xE6, 0xD3, /* 0x14-0x17 */
+	0x8B, 0xD3, 0x8B, 0xD4, 0x8B, 0xD5, 0x8B, 0xD6, /* 0x18-0x1B */
+	0x8B, 0xD7, 0x8B, 0xD8, 0x8B, 0xD9, 0x8B, 0xDA, /* 0x1C-0x1F */
+	0x8B, 0xDB, 0x8B, 0xDC, 0x8B, 0xDD, 0x8B, 0xDE, /* 0x20-0x23 */
+	0x8B, 0xDF, 0x8B, 0xE0, 0x8B, 0xE1, 0x8B, 0xE2, /* 0x24-0x27 */
+	0x8B, 0xE3, 0x8B, 0xE4, 0x8B, 0xE5, 0x8B, 0xE6, /* 0x28-0x2B */
+	0x8B, 0xE7, 0x8B, 0xE8, 0x8B, 0xE9, 0x8B, 0xEA, /* 0x2C-0x2F */
+	0x8B, 0xEB, 0x8B, 0xEC, 0xE6, 0xD5, 0x8B, 0xED, /* 0x30-0x33 */
+	0xD9, 0xF8, 0x8B, 0xEE, 0x8B, 0xEF, 0xE6, 0xD6, /* 0x34-0x37 */
+	0x8B, 0xF0, 0x8B, 0xF1, 0x8B, 0xF2, 0x8B, 0xF3, /* 0x38-0x3B */
+	0x8B, 0xF4, 0x8B, 0xF5, 0x8B, 0xF6, 0x8B, 0xF7, /* 0x3C-0x3F */
+	0xE6, 0xD7, 0x8B, 0xF8, 0x8B, 0xF9, 0x8B, 0xFA, /* 0x40-0x43 */
+	0x8B, 0xFB, 0x8B, 0xFC, 0x8B, 0xFD, 0x8B, 0xFE, /* 0x44-0x47 */
+	0x8C, 0x40, 0x8C, 0x41, 0x8C, 0x42, 0x8C, 0x43, /* 0x48-0x4B */
+	0x8C, 0x44, 0x8C, 0x45, 0x8C, 0x46, 0x8C, 0x47, /* 0x4C-0x4F */
+	0xD7, 0xD3, 0xE6, 0xDD, 0x8C, 0x48, 0xE6, 0xDE, /* 0x50-0x53 */
+	0xBF, 0xD7, 0xD4, 0xD0, 0x8C, 0x49, 0xD7, 0xD6, /* 0x54-0x57 */
+	0xB4, 0xE6, 0xCB, 0xEF, 0xE6, 0xDA, 0xD8, 0xC3, /* 0x58-0x5B */
+	0xD7, 0xCE, 0xD0, 0xA2, 0x8C, 0x4A, 0xC3, 0xCF, /* 0x5C-0x5F */
+	0x8C, 0x4B, 0x8C, 0x4C, 0xE6, 0xDF, 0xBC, 0xBE, /* 0x60-0x63 */
+	0xB9, 0xC2, 0xE6, 0xDB, 0xD1, 0xA7, 0x8C, 0x4D, /* 0x64-0x67 */
+	0x8C, 0x4E, 0xBA, 0xA2, 0xC2, 0xCF, 0x8C, 0x4F, /* 0x68-0x6B */
+	0xD8, 0xAB, 0x8C, 0x50, 0x8C, 0x51, 0x8C, 0x52, /* 0x6C-0x6F */
+	0xCA, 0xEB, 0xE5, 0xEE, 0x8C, 0x53, 0xE6, 0xDC, /* 0x70-0x73 */
+	0x8C, 0x54, 0xB7, 0xF5, 0x8C, 0x55, 0x8C, 0x56, /* 0x74-0x77 */
+	0x8C, 0x57, 0x8C, 0x58, 0xC8, 0xE6, 0x8C, 0x59, /* 0x78-0x7B */
+	0x8C, 0x5A, 0xC4, 0xF5, 0x8C, 0x5B, 0x8C, 0x5C, /* 0x7C-0x7F */
+	
+	0xE5, 0xB2, 0xC4, 0xFE, 0x8C, 0x5D, 0xCB, 0xFC, /* 0x80-0x83 */
+	0xE5, 0xB3, 0xD5, 0xAC, 0x8C, 0x5E, 0xD3, 0xEE, /* 0x84-0x87 */
+	0xCA, 0xD8, 0xB0, 0xB2, 0x8C, 0x5F, 0xCB, 0xCE, /* 0x88-0x8B */
+	0xCD, 0xEA, 0x8C, 0x60, 0x8C, 0x61, 0xBA, 0xEA, /* 0x8C-0x8F */
+	0x8C, 0x62, 0x8C, 0x63, 0x8C, 0x64, 0xE5, 0xB5, /* 0x90-0x93 */
+	0x8C, 0x65, 0xE5, 0xB4, 0x8C, 0x66, 0xD7, 0xDA, /* 0x94-0x97 */
+	0xB9, 0xD9, 0xD6, 0xE6, 0xB6, 0xA8, 0xCD, 0xF0, /* 0x98-0x9B */
+	0xD2, 0xCB, 0xB1, 0xA6, 0xCA, 0xB5, 0x8C, 0x67, /* 0x9C-0x9F */
+	0xB3, 0xE8, 0xC9, 0xF3, 0xBF, 0xCD, 0xD0, 0xFB, /* 0xA0-0xA3 */
+	0xCA, 0xD2, 0xE5, 0xB6, 0xBB, 0xC2, 0x8C, 0x68, /* 0xA4-0xA7 */
+	0x8C, 0x69, 0x8C, 0x6A, 0xCF, 0xDC, 0xB9, 0xAC, /* 0xA8-0xAB */
+	0x8C, 0x6B, 0x8C, 0x6C, 0x8C, 0x6D, 0x8C, 0x6E, /* 0xAC-0xAF */
+	0xD4, 0xD7, 0x8C, 0x6F, 0x8C, 0x70, 0xBA, 0xA6, /* 0xB0-0xB3 */
+	0xD1, 0xE7, 0xCF, 0xFC, 0xBC, 0xD2, 0x8C, 0x71, /* 0xB4-0xB7 */
+	0xE5, 0xB7, 0xC8, 0xDD, 0x8C, 0x72, 0x8C, 0x73, /* 0xB8-0xBB */
+	0x8C, 0x74, 0xBF, 0xED, 0xB1, 0xF6, 0xCB, 0xDE, /* 0xBC-0xBF */
+	0x8C, 0x75, 0x8C, 0x76, 0xBC, 0xC5, 0x8C, 0x77, /* 0xC0-0xC3 */
+	0xBC, 0xC4, 0xD2, 0xFA, 0xC3, 0xDC, 0xBF, 0xDC, /* 0xC4-0xC7 */
+	0x8C, 0x78, 0x8C, 0x79, 0x8C, 0x7A, 0x8C, 0x7B, /* 0xC8-0xCB */
+	0xB8, 0xBB, 0x8C, 0x7C, 0x8C, 0x7D, 0x8C, 0x7E, /* 0xCC-0xCF */
+	0xC3, 0xC2, 0x8C, 0x80, 0xBA, 0xAE, 0xD4, 0xA2, /* 0xD0-0xD3 */
+	0x8C, 0x81, 0x8C, 0x82, 0x8C, 0x83, 0x8C, 0x84, /* 0xD4-0xD7 */
+	0x8C, 0x85, 0x8C, 0x86, 0x8C, 0x87, 0x8C, 0x88, /* 0xD8-0xDB */
+	0x8C, 0x89, 0xC7, 0xDE, 0xC4, 0xAF, 0xB2, 0xEC, /* 0xDC-0xDF */
+	0x8C, 0x8A, 0xB9, 0xD1, 0x8C, 0x8B, 0x8C, 0x8C, /* 0xE0-0xE3 */
+	0xE5, 0xBB, 0xC1, 0xC8, 0x8C, 0x8D, 0x8C, 0x8E, /* 0xE4-0xE7 */
+	0xD5, 0xAF, 0x8C, 0x8F, 0x8C, 0x90, 0x8C, 0x91, /* 0xE8-0xEB */
+	0x8C, 0x92, 0x8C, 0x93, 0xE5, 0xBC, 0x8C, 0x94, /* 0xEC-0xEF */
+	0xE5, 0xBE, 0x8C, 0x95, 0x8C, 0x96, 0x8C, 0x97, /* 0xF0-0xF3 */
+	0x8C, 0x98, 0x8C, 0x99, 0x8C, 0x9A, 0x8C, 0x9B, /* 0xF4-0xF7 */
+	0xB4, 0xE7, 0xB6, 0xD4, 0xCB, 0xC2, 0xD1, 0xB0, /* 0xF8-0xFB */
+	0xB5, 0xBC, 0x8C, 0x9C, 0x8C, 0x9D, 0xCA, 0xD9, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_5C[512] = {
+	0x8C, 0x9E, 0xB7, 0xE2, 0x8C, 0x9F, 0x8C, 0xA0, /* 0x00-0x03 */
+	0xC9, 0xE4, 0x8C, 0xA1, 0xBD, 0xAB, 0x8C, 0xA2, /* 0x04-0x07 */
+	0x8C, 0xA3, 0xCE, 0xBE, 0xD7, 0xF0, 0x8C, 0xA4, /* 0x08-0x0B */
+	0x8C, 0xA5, 0x8C, 0xA6, 0x8C, 0xA7, 0xD0, 0xA1, /* 0x0C-0x0F */
+	0x8C, 0xA8, 0xC9, 0xD9, 0x8C, 0xA9, 0x8C, 0xAA, /* 0x10-0x13 */
+	0xB6, 0xFB, 0xE6, 0xD8, 0xBC, 0xE2, 0x8C, 0xAB, /* 0x14-0x17 */
+	0xB3, 0xBE, 0x8C, 0xAC, 0xC9, 0xD0, 0x8C, 0xAD, /* 0x18-0x1B */
+	0xE6, 0xD9, 0xB3, 0xA2, 0x8C, 0xAE, 0x8C, 0xAF, /* 0x1C-0x1F */
+	0x8C, 0xB0, 0x8C, 0xB1, 0xDE, 0xCC, 0x8C, 0xB2, /* 0x20-0x23 */
+	0xD3, 0xC8, 0xDE, 0xCD, 0x8C, 0xB3, 0xD2, 0xA2, /* 0x24-0x27 */
+	0x8C, 0xB4, 0x8C, 0xB5, 0x8C, 0xB6, 0x8C, 0xB7, /* 0x28-0x2B */
+	0xDE, 0xCE, 0x8C, 0xB8, 0x8C, 0xB9, 0x8C, 0xBA, /* 0x2C-0x2F */
+	0x8C, 0xBB, 0xBE, 0xCD, 0x8C, 0xBC, 0x8C, 0xBD, /* 0x30-0x33 */
+	0xDE, 0xCF, 0x8C, 0xBE, 0x8C, 0xBF, 0x8C, 0xC0, /* 0x34-0x37 */
+	0xCA, 0xAC, 0xD2, 0xFC, 0xB3, 0xDF, 0xE5, 0xEA, /* 0x38-0x3B */
+	0xC4, 0xE1, 0xBE, 0xA1, 0xCE, 0xB2, 0xC4, 0xF2, /* 0x3C-0x3F */
+	0xBE, 0xD6, 0xC6, 0xA8, 0xB2, 0xE3, 0x8C, 0xC1, /* 0x40-0x43 */
+	0x8C, 0xC2, 0xBE, 0xD3, 0x8C, 0xC3, 0x8C, 0xC4, /* 0x44-0x47 */
+	0xC7, 0xFC, 0xCC, 0xEB, 0xBD, 0xEC, 0xCE, 0xDD, /* 0x48-0x4B */
+	0x8C, 0xC5, 0x8C, 0xC6, 0xCA, 0xBA, 0xC6, 0xC1, /* 0x4C-0x4F */
+	0xE5, 0xEC, 0xD0, 0xBC, 0x8C, 0xC7, 0x8C, 0xC8, /* 0x50-0x53 */
+	0x8C, 0xC9, 0xD5, 0xB9, 0x8C, 0xCA, 0x8C, 0xCB, /* 0x54-0x57 */
+	0x8C, 0xCC, 0xE5, 0xED, 0x8C, 0xCD, 0x8C, 0xCE, /* 0x58-0x5B */
+	0x8C, 0xCF, 0x8C, 0xD0, 0xCA, 0xF4, 0x8C, 0xD1, /* 0x5C-0x5F */
+	0xCD, 0xC0, 0xC2, 0xC5, 0x8C, 0xD2, 0xE5, 0xEF, /* 0x60-0x63 */
+	0x8C, 0xD3, 0xC2, 0xC4, 0xE5, 0xF0, 0x8C, 0xD4, /* 0x64-0x67 */
+	0x8C, 0xD5, 0x8C, 0xD6, 0x8C, 0xD7, 0x8C, 0xD8, /* 0x68-0x6B */
+	0x8C, 0xD9, 0x8C, 0xDA, 0xE5, 0xF8, 0xCD, 0xCD, /* 0x6C-0x6F */
+	0x8C, 0xDB, 0xC9, 0xBD, 0x8C, 0xDC, 0x8C, 0xDD, /* 0x70-0x73 */
+	0x8C, 0xDE, 0x8C, 0xDF, 0x8C, 0xE0, 0x8C, 0xE1, /* 0x74-0x77 */
+	0x8C, 0xE2, 0xD2, 0xD9, 0xE1, 0xA8, 0x8C, 0xE3, /* 0x78-0x7B */
+	0x8C, 0xE4, 0x8C, 0xE5, 0x8C, 0xE6, 0xD3, 0xEC, /* 0x7C-0x7F */
+	
+	0x8C, 0xE7, 0xCB, 0xEA, 0xC6, 0xF1, 0x8C, 0xE8, /* 0x80-0x83 */
+	0x8C, 0xE9, 0x8C, 0xEA, 0x8C, 0xEB, 0x8C, 0xEC, /* 0x84-0x87 */
+	0xE1, 0xAC, 0x8C, 0xED, 0x8C, 0xEE, 0x8C, 0xEF, /* 0x88-0x8B */
+	0xE1, 0xA7, 0xE1, 0xA9, 0x8C, 0xF0, 0x8C, 0xF1, /* 0x8C-0x8F */
+	0xE1, 0xAA, 0xE1, 0xAF, 0x8C, 0xF2, 0x8C, 0xF3, /* 0x90-0x93 */
+	0xB2, 0xED, 0x8C, 0xF4, 0xE1, 0xAB, 0xB8, 0xDA, /* 0x94-0x97 */
+	0xE1, 0xAD, 0xE1, 0xAE, 0xE1, 0xB0, 0xB5, 0xBA, /* 0x98-0x9B */
+	0xE1, 0xB1, 0x8C, 0xF5, 0x8C, 0xF6, 0x8C, 0xF7, /* 0x9C-0x9F */
+	0x8C, 0xF8, 0x8C, 0xF9, 0xE1, 0xB3, 0xE1, 0xB8, /* 0xA0-0xA3 */
+	0x8C, 0xFA, 0x8C, 0xFB, 0x8C, 0xFC, 0x8C, 0xFD, /* 0xA4-0xA7 */
+	0x8C, 0xFE, 0xD1, 0xD2, 0x8D, 0x40, 0xE1, 0xB6, /* 0xA8-0xAB */
+	0xE1, 0xB5, 0xC1, 0xEB, 0x8D, 0x41, 0x8D, 0x42, /* 0xAC-0xAF */
+	0x8D, 0x43, 0xE1, 0xB7, 0x8D, 0x44, 0xD4, 0xC0, /* 0xB0-0xB3 */
+	0x8D, 0x45, 0xE1, 0xB2, 0x8D, 0x46, 0xE1, 0xBA, /* 0xB4-0xB7 */
+	0xB0, 0xB6, 0x8D, 0x47, 0x8D, 0x48, 0x8D, 0x49, /* 0xB8-0xBB */
+	0x8D, 0x4A, 0xE1, 0xB4, 0x8D, 0x4B, 0xBF, 0xF9, /* 0xBC-0xBF */
+	0x8D, 0x4C, 0xE1, 0xB9, 0x8D, 0x4D, 0x8D, 0x4E, /* 0xC0-0xC3 */
+	0xE1, 0xBB, 0x8D, 0x4F, 0x8D, 0x50, 0x8D, 0x51, /* 0xC4-0xC7 */
+	0x8D, 0x52, 0x8D, 0x53, 0x8D, 0x54, 0xE1, 0xBE, /* 0xC8-0xCB */
+	0x8D, 0x55, 0x8D, 0x56, 0x8D, 0x57, 0x8D, 0x58, /* 0xCC-0xCF */
+	0x8D, 0x59, 0x8D, 0x5A, 0xE1, 0xBC, 0x8D, 0x5B, /* 0xD0-0xD3 */
+	0x8D, 0x5C, 0x8D, 0x5D, 0x8D, 0x5E, 0x8D, 0x5F, /* 0xD4-0xD7 */
+	0x8D, 0x60, 0xD6, 0xC5, 0x8D, 0x61, 0x8D, 0x62, /* 0xD8-0xDB */
+	0x8D, 0x63, 0x8D, 0x64, 0x8D, 0x65, 0x8D, 0x66, /* 0xDC-0xDF */
+	0x8D, 0x67, 0xCF, 0xBF, 0x8D, 0x68, 0x8D, 0x69, /* 0xE0-0xE3 */
+	0xE1, 0xBD, 0xE1, 0xBF, 0xC2, 0xCD, 0x8D, 0x6A, /* 0xE4-0xE7 */
+	0xB6, 0xEB, 0x8D, 0x6B, 0xD3, 0xF8, 0x8D, 0x6C, /* 0xE8-0xEB */
+	0x8D, 0x6D, 0xC7, 0xCD, 0x8D, 0x6E, 0x8D, 0x6F, /* 0xEC-0xEF */
+	0xB7, 0xE5, 0x8D, 0x70, 0x8D, 0x71, 0x8D, 0x72, /* 0xF0-0xF3 */
+	0x8D, 0x73, 0x8D, 0x74, 0x8D, 0x75, 0x8D, 0x76, /* 0xF4-0xF7 */
+	0x8D, 0x77, 0x8D, 0x78, 0x8D, 0x79, 0xBE, 0xFE, /* 0xF8-0xFB */
+	0x8D, 0x7A, 0x8D, 0x7B, 0x8D, 0x7C, 0x8D, 0x7D, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_5D[512] = {
+	0x8D, 0x7E, 0x8D, 0x80, 0xE1, 0xC0, 0xE1, 0xC1, /* 0x00-0x03 */
+	0x8D, 0x81, 0x8D, 0x82, 0xE1, 0xC7, 0xB3, 0xE7, /* 0x04-0x07 */
+	0x8D, 0x83, 0x8D, 0x84, 0x8D, 0x85, 0x8D, 0x86, /* 0x08-0x0B */
+	0x8D, 0x87, 0x8D, 0x88, 0xC6, 0xE9, 0x8D, 0x89, /* 0x0C-0x0F */
+	0x8D, 0x8A, 0x8D, 0x8B, 0x8D, 0x8C, 0x8D, 0x8D, /* 0x10-0x13 */
+	0xB4, 0xDE, 0x8D, 0x8E, 0xD1, 0xC2, 0x8D, 0x8F, /* 0x14-0x17 */
+	0x8D, 0x90, 0x8D, 0x91, 0x8D, 0x92, 0xE1, 0xC8, /* 0x18-0x1B */
+	0x8D, 0x93, 0x8D, 0x94, 0xE1, 0xC6, 0x8D, 0x95, /* 0x1C-0x1F */
+	0x8D, 0x96, 0x8D, 0x97, 0x8D, 0x98, 0x8D, 0x99, /* 0x20-0x23 */
+	0xE1, 0xC5, 0x8D, 0x9A, 0xE1, 0xC3, 0xE1, 0xC2, /* 0x24-0x27 */
+	0x8D, 0x9B, 0xB1, 0xC0, 0x8D, 0x9C, 0x8D, 0x9D, /* 0x28-0x2B */
+	0x8D, 0x9E, 0xD5, 0xB8, 0xE1, 0xC4, 0x8D, 0x9F, /* 0x2C-0x2F */
+	0x8D, 0xA0, 0x8D, 0xA1, 0x8D, 0xA2, 0x8D, 0xA3, /* 0x30-0x33 */
+	0xE1, 0xCB, 0x8D, 0xA4, 0x8D, 0xA5, 0x8D, 0xA6, /* 0x34-0x37 */
+	0x8D, 0xA7, 0x8D, 0xA8, 0x8D, 0xA9, 0x8D, 0xAA, /* 0x38-0x3B */
+	0x8D, 0xAB, 0xE1, 0xCC, 0xE1, 0xCA, 0x8D, 0xAC, /* 0x3C-0x3F */
+	0x8D, 0xAD, 0x8D, 0xAE, 0x8D, 0xAF, 0x8D, 0xB0, /* 0x40-0x43 */
+	0x8D, 0xB1, 0x8D, 0xB2, 0x8D, 0xB3, 0xEF, 0xFA, /* 0x44-0x47 */
+	0x8D, 0xB4, 0x8D, 0xB5, 0xE1, 0xD3, 0xE1, 0xD2, /* 0x48-0x4B */
+	0xC7, 0xB6, 0x8D, 0xB6, 0x8D, 0xB7, 0x8D, 0xB8, /* 0x4C-0x4F */
+	0x8D, 0xB9, 0x8D, 0xBA, 0x8D, 0xBB, 0x8D, 0xBC, /* 0x50-0x53 */
+	0x8D, 0xBD, 0x8D, 0xBE, 0x8D, 0xBF, 0x8D, 0xC0, /* 0x54-0x57 */
+	0xE1, 0xC9, 0x8D, 0xC1, 0x8D, 0xC2, 0xE1, 0xCE, /* 0x58-0x5B */
+	0x8D, 0xC3, 0xE1, 0xD0, 0x8D, 0xC4, 0x8D, 0xC5, /* 0x5C-0x5F */
+	0x8D, 0xC6, 0x8D, 0xC7, 0x8D, 0xC8, 0x8D, 0xC9, /* 0x60-0x63 */
+	0x8D, 0xCA, 0x8D, 0xCB, 0x8D, 0xCC, 0x8D, 0xCD, /* 0x64-0x67 */
+	0x8D, 0xCE, 0xE1, 0xD4, 0x8D, 0xCF, 0xE1, 0xD1, /* 0x68-0x6B */
+	0xE1, 0xCD, 0x8D, 0xD0, 0x8D, 0xD1, 0xE1, 0xCF, /* 0x6C-0x6F */
+	0x8D, 0xD2, 0x8D, 0xD3, 0x8D, 0xD4, 0x8D, 0xD5, /* 0x70-0x73 */
+	0xE1, 0xD5, 0x8D, 0xD6, 0x8D, 0xD7, 0x8D, 0xD8, /* 0x74-0x77 */
+	0x8D, 0xD9, 0x8D, 0xDA, 0x8D, 0xDB, 0x8D, 0xDC, /* 0x78-0x7B */
+	0x8D, 0xDD, 0x8D, 0xDE, 0x8D, 0xDF, 0x8D, 0xE0, /* 0x7C-0x7F */
+	
+	0x8D, 0xE1, 0x8D, 0xE2, 0xE1, 0xD6, 0x8D, 0xE3, /* 0x80-0x83 */
+	0x8D, 0xE4, 0x8D, 0xE5, 0x8D, 0xE6, 0x8D, 0xE7, /* 0x84-0x87 */
+	0x8D, 0xE8, 0x8D, 0xE9, 0x8D, 0xEA, 0x8D, 0xEB, /* 0x88-0x8B */
+	0x8D, 0xEC, 0x8D, 0xED, 0x8D, 0xEE, 0x8D, 0xEF, /* 0x8C-0x8F */
+	0x8D, 0xF0, 0x8D, 0xF1, 0x8D, 0xF2, 0x8D, 0xF3, /* 0x90-0x93 */
+	0x8D, 0xF4, 0x8D, 0xF5, 0x8D, 0xF6, 0x8D, 0xF7, /* 0x94-0x97 */
+	0x8D, 0xF8, 0xE1, 0xD7, 0x8D, 0xF9, 0x8D, 0xFA, /* 0x98-0x9B */
+	0x8D, 0xFB, 0xE1, 0xD8, 0x8D, 0xFC, 0x8D, 0xFD, /* 0x9C-0x9F */
+	0x8D, 0xFE, 0x8E, 0x40, 0x8E, 0x41, 0x8E, 0x42, /* 0xA0-0xA3 */
+	0x8E, 0x43, 0x8E, 0x44, 0x8E, 0x45, 0x8E, 0x46, /* 0xA4-0xA7 */
+	0x8E, 0x47, 0x8E, 0x48, 0x8E, 0x49, 0x8E, 0x4A, /* 0xA8-0xAB */
+	0x8E, 0x4B, 0x8E, 0x4C, 0x8E, 0x4D, 0x8E, 0x4E, /* 0xAC-0xAF */
+	0x8E, 0x4F, 0x8E, 0x50, 0x8E, 0x51, 0x8E, 0x52, /* 0xB0-0xB3 */
+	0x8E, 0x53, 0x8E, 0x54, 0x8E, 0x55, 0xE1, 0xDA, /* 0xB4-0xB7 */
+	0x8E, 0x56, 0x8E, 0x57, 0x8E, 0x58, 0x8E, 0x59, /* 0xB8-0xBB */
+	0x8E, 0x5A, 0x8E, 0x5B, 0x8E, 0x5C, 0x8E, 0x5D, /* 0xBC-0xBF */
+	0x8E, 0x5E, 0x8E, 0x5F, 0x8E, 0x60, 0x8E, 0x61, /* 0xC0-0xC3 */
+	0x8E, 0x62, 0xE1, 0xDB, 0x8E, 0x63, 0x8E, 0x64, /* 0xC4-0xC7 */
+	0x8E, 0x65, 0x8E, 0x66, 0x8E, 0x67, 0x8E, 0x68, /* 0xC8-0xCB */
+	0x8E, 0x69, 0xCE, 0xA1, 0x8E, 0x6A, 0x8E, 0x6B, /* 0xCC-0xCF */
+	0x8E, 0x6C, 0x8E, 0x6D, 0x8E, 0x6E, 0x8E, 0x6F, /* 0xD0-0xD3 */
+	0x8E, 0x70, 0x8E, 0x71, 0x8E, 0x72, 0x8E, 0x73, /* 0xD4-0xD7 */
+	0x8E, 0x74, 0x8E, 0x75, 0x8E, 0x76, 0xE7, 0xDD, /* 0xD8-0xDB */
+	0x8E, 0x77, 0xB4, 0xA8, 0xD6, 0xDD, 0x8E, 0x78, /* 0xDC-0xDF */
+	0x8E, 0x79, 0xD1, 0xB2, 0xB3, 0xB2, 0x8E, 0x7A, /* 0xE0-0xE3 */
+	0x8E, 0x7B, 0xB9, 0xA4, 0xD7, 0xF3, 0xC7, 0xC9, /* 0xE4-0xE7 */
+	0xBE, 0xDE, 0xB9, 0xAE, 0x8E, 0x7C, 0xCE, 0xD7, /* 0xE8-0xEB */
+	0x8E, 0x7D, 0x8E, 0x7E, 0xB2, 0xEE, 0xDB, 0xCF, /* 0xEC-0xEF */
+	0x8E, 0x80, 0xBC, 0xBA, 0xD2, 0xD1, 0xCB, 0xC8, /* 0xF0-0xF3 */
+	0xB0, 0xCD, 0x8E, 0x81, 0x8E, 0x82, 0xCF, 0xEF, /* 0xF4-0xF7 */
+	0x8E, 0x83, 0x8E, 0x84, 0x8E, 0x85, 0x8E, 0x86, /* 0xF8-0xFB */
+	0x8E, 0x87, 0xD9, 0xE3, 0xBD, 0xED, 0x8E, 0x88, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_5E[512] = {
+	0x8E, 0x89, 0xB1, 0xD2, 0xCA, 0xD0, 0xB2, 0xBC, /* 0x00-0x03 */
+	0x8E, 0x8A, 0xCB, 0xA7, 0xB7, 0xAB, 0x8E, 0x8B, /* 0x04-0x07 */
+	0xCA, 0xA6, 0x8E, 0x8C, 0x8E, 0x8D, 0x8E, 0x8E, /* 0x08-0x0B */
+	0xCF, 0xA3, 0x8E, 0x8F, 0x8E, 0x90, 0xE0, 0xF8, /* 0x0C-0x0F */
+	0xD5, 0xCA, 0xE0, 0xFB, 0x8E, 0x91, 0x8E, 0x92, /* 0x10-0x13 */
+	0xE0, 0xFA, 0xC5, 0xC1, 0xCC, 0xFB, 0x8E, 0x93, /* 0x14-0x17 */
+	0xC1, 0xB1, 0xE0, 0xF9, 0xD6, 0xE3, 0xB2, 0xAF, /* 0x18-0x1B */
+	0xD6, 0xC4, 0xB5, 0xDB, 0x8E, 0x94, 0x8E, 0x95, /* 0x1C-0x1F */
+	0x8E, 0x96, 0x8E, 0x97, 0x8E, 0x98, 0x8E, 0x99, /* 0x20-0x23 */
+	0x8E, 0x9A, 0x8E, 0x9B, 0xB4, 0xF8, 0xD6, 0xA1, /* 0x24-0x27 */
+	0x8E, 0x9C, 0x8E, 0x9D, 0x8E, 0x9E, 0x8E, 0x9F, /* 0x28-0x2B */
+	0x8E, 0xA0, 0xCF, 0xAF, 0xB0, 0xEF, 0x8E, 0xA1, /* 0x2C-0x2F */
+	0x8E, 0xA2, 0xE0, 0xFC, 0x8E, 0xA3, 0x8E, 0xA4, /* 0x30-0x33 */
+	0x8E, 0xA5, 0x8E, 0xA6, 0x8E, 0xA7, 0xE1, 0xA1, /* 0x34-0x37 */
+	0xB3, 0xA3, 0x8E, 0xA8, 0x8E, 0xA9, 0xE0, 0xFD, /* 0x38-0x3B */
+	0xE0, 0xFE, 0xC3, 0xB1, 0x8E, 0xAA, 0x8E, 0xAB, /* 0x3C-0x3F */
+	0x8E, 0xAC, 0x8E, 0xAD, 0xC3, 0xDD, 0x8E, 0xAE, /* 0x40-0x43 */
+	0xE1, 0xA2, 0xB7, 0xF9, 0x8E, 0xAF, 0x8E, 0xB0, /* 0x44-0x47 */
+	0x8E, 0xB1, 0x8E, 0xB2, 0x8E, 0xB3, 0x8E, 0xB4, /* 0x48-0x4B */
+	0xBB, 0xCF, 0x8E, 0xB5, 0x8E, 0xB6, 0x8E, 0xB7, /* 0x4C-0x4F */
+	0x8E, 0xB8, 0x8E, 0xB9, 0x8E, 0xBA, 0x8E, 0xBB, /* 0x50-0x53 */
+	0xE1, 0xA3, 0xC4, 0xBB, 0x8E, 0xBC, 0x8E, 0xBD, /* 0x54-0x57 */
+	0x8E, 0xBE, 0x8E, 0xBF, 0x8E, 0xC0, 0xE1, 0xA4, /* 0x58-0x5B */
+	0x8E, 0xC1, 0x8E, 0xC2, 0xE1, 0xA5, 0x8E, 0xC3, /* 0x5C-0x5F */
+	0x8E, 0xC4, 0xE1, 0xA6, 0xB4, 0xB1, 0x8E, 0xC5, /* 0x60-0x63 */
+	0x8E, 0xC6, 0x8E, 0xC7, 0x8E, 0xC8, 0x8E, 0xC9, /* 0x64-0x67 */
+	0x8E, 0xCA, 0x8E, 0xCB, 0x8E, 0xCC, 0x8E, 0xCD, /* 0x68-0x6B */
+	0x8E, 0xCE, 0x8E, 0xCF, 0x8E, 0xD0, 0x8E, 0xD1, /* 0x6C-0x6F */
+	0x8E, 0xD2, 0x8E, 0xD3, 0xB8, 0xC9, 0xC6, 0xBD, /* 0x70-0x73 */
+	0xC4, 0xEA, 0x8E, 0xD4, 0xB2, 0xA2, 0x8E, 0xD5, /* 0x74-0x77 */
+	0xD0, 0xD2, 0x8E, 0xD6, 0xE7, 0xDB, 0xBB, 0xC3, /* 0x78-0x7B */
+	0xD3, 0xD7, 0xD3, 0xC4, 0x8E, 0xD7, 0xB9, 0xE3, /* 0x7C-0x7F */
+	
+	0xE2, 0xCF, 0x8E, 0xD8, 0x8E, 0xD9, 0x8E, 0xDA, /* 0x80-0x83 */
+	0xD7, 0xAF, 0x8E, 0xDB, 0xC7, 0xEC, 0xB1, 0xD3, /* 0x84-0x87 */
+	0x8E, 0xDC, 0x8E, 0xDD, 0xB4, 0xB2, 0xE2, 0xD1, /* 0x88-0x8B */
+	0x8E, 0xDE, 0x8E, 0xDF, 0x8E, 0xE0, 0xD0, 0xF2, /* 0x8C-0x8F */
+	0xC2, 0xAE, 0xE2, 0xD0, 0x8E, 0xE1, 0xBF, 0xE2, /* 0x90-0x93 */
+	0xD3, 0xA6, 0xB5, 0xD7, 0xE2, 0xD2, 0xB5, 0xEA, /* 0x94-0x97 */
+	0x8E, 0xE2, 0xC3, 0xED, 0xB8, 0xFD, 0x8E, 0xE3, /* 0x98-0x9B */
+	0xB8, 0xAE, 0x8E, 0xE4, 0xC5, 0xD3, 0xB7, 0xCF, /* 0x9C-0x9F */
+	0xE2, 0xD4, 0x8E, 0xE5, 0x8E, 0xE6, 0x8E, 0xE7, /* 0xA0-0xA3 */
+	0x8E, 0xE8, 0xE2, 0xD3, 0xB6, 0xC8, 0xD7, 0xF9, /* 0xA4-0xA7 */
+	0x8E, 0xE9, 0x8E, 0xEA, 0x8E, 0xEB, 0x8E, 0xEC, /* 0xA8-0xAB */
+	0x8E, 0xED, 0xCD, 0xA5, 0x8E, 0xEE, 0x8E, 0xEF, /* 0xAC-0xAF */
+	0x8E, 0xF0, 0x8E, 0xF1, 0x8E, 0xF2, 0xE2, 0xD8, /* 0xB0-0xB3 */
+	0x8E, 0xF3, 0xE2, 0xD6, 0xCA, 0xFC, 0xBF, 0xB5, /* 0xB4-0xB7 */
+	0xD3, 0xB9, 0xE2, 0xD5, 0x8E, 0xF4, 0x8E, 0xF5, /* 0xB8-0xBB */
+	0x8E, 0xF6, 0x8E, 0xF7, 0xE2, 0xD7, 0x8E, 0xF8, /* 0xBC-0xBF */
+	0x8E, 0xF9, 0x8E, 0xFA, 0x8E, 0xFB, 0x8E, 0xFC, /* 0xC0-0xC3 */
+	0x8E, 0xFD, 0x8E, 0xFE, 0x8F, 0x40, 0x8F, 0x41, /* 0xC4-0xC7 */
+	0x8F, 0x42, 0xC1, 0xAE, 0xC0, 0xC8, 0x8F, 0x43, /* 0xC8-0xCB */
+	0x8F, 0x44, 0x8F, 0x45, 0x8F, 0x46, 0x8F, 0x47, /* 0xCC-0xCF */
+	0x8F, 0x48, 0xE2, 0xDB, 0xE2, 0xDA, 0xC0, 0xAA, /* 0xD0-0xD3 */
+	0x8F, 0x49, 0x8F, 0x4A, 0xC1, 0xCE, 0x8F, 0x4B, /* 0xD4-0xD7 */
+	0x8F, 0x4C, 0x8F, 0x4D, 0x8F, 0x4E, 0xE2, 0xDC, /* 0xD8-0xDB */
+	0x8F, 0x4F, 0x8F, 0x50, 0x8F, 0x51, 0x8F, 0x52, /* 0xDC-0xDF */
+	0x8F, 0x53, 0x8F, 0x54, 0x8F, 0x55, 0x8F, 0x56, /* 0xE0-0xE3 */
+	0x8F, 0x57, 0x8F, 0x58, 0x8F, 0x59, 0x8F, 0x5A, /* 0xE4-0xE7 */
+	0xE2, 0xDD, 0x8F, 0x5B, 0xE2, 0xDE, 0x8F, 0x5C, /* 0xE8-0xEB */
+	0x8F, 0x5D, 0x8F, 0x5E, 0x8F, 0x5F, 0x8F, 0x60, /* 0xEC-0xEF */
+	0x8F, 0x61, 0x8F, 0x62, 0x8F, 0x63, 0x8F, 0x64, /* 0xF0-0xF3 */
+	0xDB, 0xC8, 0x8F, 0x65, 0xD1, 0xD3, 0xCD, 0xA2, /* 0xF4-0xF7 */
+	0x8F, 0x66, 0x8F, 0x67, 0xBD, 0xA8, 0x8F, 0x68, /* 0xF8-0xFB */
+	0x8F, 0x69, 0x8F, 0x6A, 0xDE, 0xC3, 0xD8, 0xA5, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_5F[512] = {
+	0xBF, 0xAA, 0xDB, 0xCD, 0xD2, 0xEC, 0xC6, 0xFA, /* 0x00-0x03 */
+	0xC5, 0xAA, 0x8F, 0x6B, 0x8F, 0x6C, 0x8F, 0x6D, /* 0x04-0x07 */
+	0xDE, 0xC4, 0x8F, 0x6E, 0xB1, 0xD7, 0xDF, 0xAE, /* 0x08-0x0B */
+	0x8F, 0x6F, 0x8F, 0x70, 0x8F, 0x71, 0xCA, 0xBD, /* 0x0C-0x0F */
+	0x8F, 0x72, 0xDF, 0xB1, 0x8F, 0x73, 0xB9, 0xAD, /* 0x10-0x13 */
+	0x8F, 0x74, 0xD2, 0xFD, 0x8F, 0x75, 0xB8, 0xA5, /* 0x14-0x17 */
+	0xBA, 0xEB, 0x8F, 0x76, 0x8F, 0x77, 0xB3, 0xDA, /* 0x18-0x1B */
+	0x8F, 0x78, 0x8F, 0x79, 0x8F, 0x7A, 0xB5, 0xDC, /* 0x1C-0x1F */
+	0xD5, 0xC5, 0x8F, 0x7B, 0x8F, 0x7C, 0x8F, 0x7D, /* 0x20-0x23 */
+	0x8F, 0x7E, 0xC3, 0xD6, 0xCF, 0xD2, 0xBB, 0xA1, /* 0x24-0x27 */
+	0x8F, 0x80, 0xE5, 0xF3, 0xE5, 0xF2, 0x8F, 0x81, /* 0x28-0x2B */
+	0x8F, 0x82, 0xE5, 0xF4, 0x8F, 0x83, 0xCD, 0xE4, /* 0x2C-0x2F */
+	0x8F, 0x84, 0xC8, 0xF5, 0x8F, 0x85, 0x8F, 0x86, /* 0x30-0x33 */
+	0x8F, 0x87, 0x8F, 0x88, 0x8F, 0x89, 0x8F, 0x8A, /* 0x34-0x37 */
+	0x8F, 0x8B, 0xB5, 0xAF, 0xC7, 0xBF, 0x8F, 0x8C, /* 0x38-0x3B */
+	0xE5, 0xF6, 0x8F, 0x8D, 0x8F, 0x8E, 0x8F, 0x8F, /* 0x3C-0x3F */
+	0xEC, 0xB0, 0x8F, 0x90, 0x8F, 0x91, 0x8F, 0x92, /* 0x40-0x43 */
+	0x8F, 0x93, 0x8F, 0x94, 0x8F, 0x95, 0x8F, 0x96, /* 0x44-0x47 */
+	0x8F, 0x97, 0x8F, 0x98, 0x8F, 0x99, 0x8F, 0x9A, /* 0x48-0x4B */
+	0x8F, 0x9B, 0x8F, 0x9C, 0x8F, 0x9D, 0x8F, 0x9E, /* 0x4C-0x4F */
+	0xE5, 0xE6, 0x8F, 0x9F, 0xB9, 0xE9, 0xB5, 0xB1, /* 0x50-0x53 */
+	0x8F, 0xA0, 0xC2, 0xBC, 0xE5, 0xE8, 0xE5, 0xE7, /* 0x54-0x57 */
+	0xE5, 0xE9, 0x8F, 0xA1, 0x8F, 0xA2, 0x8F, 0xA3, /* 0x58-0x5B */
+	0x8F, 0xA4, 0xD2, 0xCD, 0x8F, 0xA5, 0x8F, 0xA6, /* 0x5C-0x5F */
+	0x8F, 0xA7, 0xE1, 0xEA, 0xD0, 0xCE, 0x8F, 0xA8, /* 0x60-0x63 */
+	0xCD, 0xAE, 0x8F, 0xA9, 0xD1, 0xE5, 0x8F, 0xAA, /* 0x64-0x67 */
+	0x8F, 0xAB, 0xB2, 0xCA, 0xB1, 0xEB, 0x8F, 0xAC, /* 0x68-0x6B */
+	0xB1, 0xF2, 0xC5, 0xED, 0x8F, 0xAD, 0x8F, 0xAE, /* 0x6C-0x6F */
+	0xD5, 0xC3, 0xD3, 0xB0, 0x8F, 0xAF, 0xE1, 0xDC, /* 0x70-0x73 */
+	0x8F, 0xB0, 0x8F, 0xB1, 0x8F, 0xB2, 0xE1, 0xDD, /* 0x74-0x77 */
+	0x8F, 0xB3, 0xD2, 0xDB, 0x8F, 0xB4, 0xB3, 0xB9, /* 0x78-0x7B */
+	0xB1, 0xCB, 0x8F, 0xB5, 0x8F, 0xB6, 0x8F, 0xB7, /* 0x7C-0x7F */
+	
+	0xCD, 0xF9, 0xD5, 0xF7, 0xE1, 0xDE, 0x8F, 0xB8, /* 0x80-0x83 */
+	0xBE, 0xB6, 0xB4, 0xFD, 0x8F, 0xB9, 0xE1, 0xDF, /* 0x84-0x87 */
+	0xBA, 0xDC, 0xE1, 0xE0, 0xBB, 0xB2, 0xC2, 0xC9, /* 0x88-0x8B */
+	0xE1, 0xE1, 0x8F, 0xBA, 0x8F, 0xBB, 0x8F, 0xBC, /* 0x8C-0x8F */
+	0xD0, 0xEC, 0x8F, 0xBD, 0xCD, 0xBD, 0x8F, 0xBE, /* 0x90-0x93 */
+	0x8F, 0xBF, 0xE1, 0xE2, 0x8F, 0xC0, 0xB5, 0xC3, /* 0x94-0x97 */
+	0xC5, 0xC7, 0xE1, 0xE3, 0x8F, 0xC1, 0x8F, 0xC2, /* 0x98-0x9B */
+	0xE1, 0xE4, 0x8F, 0xC3, 0x8F, 0xC4, 0x8F, 0xC5, /* 0x9C-0x9F */
+	0x8F, 0xC6, 0xD3, 0xF9, 0x8F, 0xC7, 0x8F, 0xC8, /* 0xA0-0xA3 */
+	0x8F, 0xC9, 0x8F, 0xCA, 0x8F, 0xCB, 0x8F, 0xCC, /* 0xA4-0xA7 */
+	0xE1, 0xE5, 0x8F, 0xCD, 0xD1, 0xAD, 0x8F, 0xCE, /* 0xA8-0xAB */
+	0x8F, 0xCF, 0xE1, 0xE6, 0xCE, 0xA2, 0x8F, 0xD0, /* 0xAC-0xAF */
+	0x8F, 0xD1, 0x8F, 0xD2, 0x8F, 0xD3, 0x8F, 0xD4, /* 0xB0-0xB3 */
+	0x8F, 0xD5, 0xE1, 0xE7, 0x8F, 0xD6, 0xB5, 0xC2, /* 0xB4-0xB7 */
+	0x8F, 0xD7, 0x8F, 0xD8, 0x8F, 0xD9, 0x8F, 0xDA, /* 0xB8-0xBB */
+	0xE1, 0xE8, 0xBB, 0xD5, 0x8F, 0xDB, 0x8F, 0xDC, /* 0xBC-0xBF */
+	0x8F, 0xDD, 0x8F, 0xDE, 0x8F, 0xDF, 0xD0, 0xC4, /* 0xC0-0xC3 */
+	0xE2, 0xE0, 0xB1, 0xD8, 0xD2, 0xE4, 0x8F, 0xE0, /* 0xC4-0xC7 */
+	0x8F, 0xE1, 0xE2, 0xE1, 0x8F, 0xE2, 0x8F, 0xE3, /* 0xC8-0xCB */
+	0xBC, 0xC9, 0xC8, 0xCC, 0x8F, 0xE4, 0xE2, 0xE3, /* 0xCC-0xCF */
+	0xEC, 0xFE, 0xEC, 0xFD, 0xDF, 0xAF, 0x8F, 0xE5, /* 0xD0-0xD3 */
+	0x8F, 0xE6, 0x8F, 0xE7, 0xE2, 0xE2, 0xD6, 0xBE, /* 0xD4-0xD7 */
+	0xCD, 0xFC, 0xC3, 0xA6, 0x8F, 0xE8, 0x8F, 0xE9, /* 0xD8-0xDB */
+	0x8F, 0xEA, 0xE3, 0xC3, 0x8F, 0xEB, 0x8F, 0xEC, /* 0xDC-0xDF */
+	0xD6, 0xD2, 0xE2, 0xE7, 0x8F, 0xED, 0x8F, 0xEE, /* 0xE0-0xE3 */
+	0xE2, 0xE8, 0x8F, 0xEF, 0x8F, 0xF0, 0xD3, 0xC7, /* 0xE4-0xE7 */
+	0x8F, 0xF1, 0x8F, 0xF2, 0xE2, 0xEC, 0xBF, 0xEC, /* 0xE8-0xEB */
+	0x8F, 0xF3, 0xE2, 0xED, 0xE2, 0xE5, 0x8F, 0xF4, /* 0xEC-0xEF */
+	0x8F, 0xF5, 0xB3, 0xC0, 0x8F, 0xF6, 0x8F, 0xF7, /* 0xF0-0xF3 */
+	0x8F, 0xF8, 0xC4, 0xEE, 0x8F, 0xF9, 0x8F, 0xFA, /* 0xF4-0xF7 */
+	0xE2, 0xEE, 0x8F, 0xFB, 0x8F, 0xFC, 0xD0, 0xC3, /* 0xF8-0xFB */
+	0x8F, 0xFD, 0xBA, 0xF6, 0xE2, 0xE9, 0xB7, 0xDE, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_60[512] = {
+	0xBB, 0xB3, 0xCC, 0xAC, 0xCB, 0xCB, 0xE2, 0xE4, /* 0x00-0x03 */
+	0xE2, 0xE6, 0xE2, 0xEA, 0xE2, 0xEB, 0x8F, 0xFE, /* 0x04-0x07 */
+	0x90, 0x40, 0x90, 0x41, 0xE2, 0xF7, 0x90, 0x42, /* 0x08-0x0B */
+	0x90, 0x43, 0xE2, 0xF4, 0xD4, 0xF5, 0xE2, 0xF3, /* 0x0C-0x0F */
+	0x90, 0x44, 0x90, 0x45, 0xC5, 0xAD, 0x90, 0x46, /* 0x10-0x13 */
+	0xD5, 0xFA, 0xC5, 0xC2, 0xB2, 0xC0, 0x90, 0x47, /* 0x14-0x17 */
+	0x90, 0x48, 0xE2, 0xEF, 0x90, 0x49, 0xE2, 0xF2, /* 0x18-0x1B */
+	0xC1, 0xAF, 0xCB, 0xBC, 0x90, 0x4A, 0x90, 0x4B, /* 0x1C-0x1F */
+	0xB5, 0xA1, 0xE2, 0xF9, 0x90, 0x4C, 0x90, 0x4D, /* 0x20-0x23 */
+	0x90, 0x4E, 0xBC, 0xB1, 0xE2, 0xF1, 0xD0, 0xD4, /* 0x24-0x27 */
+	0xD4, 0xB9, 0xE2, 0xF5, 0xB9, 0xD6, 0xE2, 0xF6, /* 0x28-0x2B */
+	0x90, 0x4F, 0x90, 0x50, 0x90, 0x51, 0xC7, 0xD3, /* 0x2C-0x2F */
+	0x90, 0x52, 0x90, 0x53, 0x90, 0x54, 0x90, 0x55, /* 0x30-0x33 */
+	0x90, 0x56, 0xE2, 0xF0, 0x90, 0x57, 0x90, 0x58, /* 0x34-0x37 */
+	0x90, 0x59, 0x90, 0x5A, 0x90, 0x5B, 0xD7, 0xDC, /* 0x38-0x3B */
+	0xED, 0xA1, 0x90, 0x5C, 0x90, 0x5D, 0xE2, 0xF8, /* 0x3C-0x3F */
+	0x90, 0x5E, 0xED, 0xA5, 0xE2, 0xFE, 0xCA, 0xD1, /* 0x40-0x43 */
+	0x90, 0x5F, 0x90, 0x60, 0x90, 0x61, 0x90, 0x62, /* 0x44-0x47 */
+	0x90, 0x63, 0x90, 0x64, 0x90, 0x65, 0xC1, 0xB5, /* 0x48-0x4B */
+	0x90, 0x66, 0xBB, 0xD0, 0x90, 0x67, 0x90, 0x68, /* 0x4C-0x4F */
+	0xBF, 0xD6, 0x90, 0x69, 0xBA, 0xE3, 0x90, 0x6A, /* 0x50-0x53 */
+	0x90, 0x6B, 0xCB, 0xA1, 0x90, 0x6C, 0x90, 0x6D, /* 0x54-0x57 */
+	0x90, 0x6E, 0xED, 0xA6, 0xED, 0xA3, 0x90, 0x6F, /* 0x58-0x5B */
+	0x90, 0x70, 0xED, 0xA2, 0x90, 0x71, 0x90, 0x72, /* 0x5C-0x5F */
+	0x90, 0x73, 0x90, 0x74, 0xBB, 0xD6, 0xED, 0xA7, /* 0x60-0x63 */
+	0xD0, 0xF4, 0x90, 0x75, 0x90, 0x76, 0xED, 0xA4, /* 0x64-0x67 */
+	0xBA, 0xDE, 0xB6, 0xF7, 0xE3, 0xA1, 0xB6, 0xB2, /* 0x68-0x6B */
+	0xCC, 0xF1, 0xB9, 0xA7, 0x90, 0x77, 0xCF, 0xA2, /* 0x6C-0x6F */
+	0xC7, 0xA1, 0x90, 0x78, 0x90, 0x79, 0xBF, 0xD2, /* 0x70-0x73 */
+	0x90, 0x7A, 0x90, 0x7B, 0xB6, 0xF1, 0x90, 0x7C, /* 0x74-0x77 */
+	0xE2, 0xFA, 0xE2, 0xFB, 0xE2, 0xFD, 0xE2, 0xFC, /* 0x78-0x7B */
+	0xC4, 0xD5, 0xE3, 0xA2, 0x90, 0x7D, 0xD3, 0xC1, /* 0x7C-0x7F */
+	
+	0x90, 0x7E, 0x90, 0x80, 0x90, 0x81, 0xE3, 0xA7, /* 0x80-0x83 */
+	0xC7, 0xC4, 0x90, 0x82, 0x90, 0x83, 0x90, 0x84, /* 0x84-0x87 */
+	0x90, 0x85, 0xCF, 0xA4, 0x90, 0x86, 0x90, 0x87, /* 0x88-0x8B */
+	0xE3, 0xA9, 0xBA, 0xB7, 0x90, 0x88, 0x90, 0x89, /* 0x8C-0x8F */
+	0x90, 0x8A, 0x90, 0x8B, 0xE3, 0xA8, 0x90, 0x8C, /* 0x90-0x93 */
+	0xBB, 0xDA, 0x90, 0x8D, 0xE3, 0xA3, 0x90, 0x8E, /* 0x94-0x97 */
+	0x90, 0x8F, 0x90, 0x90, 0xE3, 0xA4, 0xE3, 0xAA, /* 0x98-0x9B */
+	0x90, 0x91, 0xE3, 0xA6, 0x90, 0x92, 0xCE, 0xF2, /* 0x9C-0x9F */
+	0xD3, 0xC6, 0x90, 0x93, 0x90, 0x94, 0xBB, 0xBC, /* 0xA0-0xA3 */
+	0x90, 0x95, 0x90, 0x96, 0xD4, 0xC3, 0x90, 0x97, /* 0xA4-0xA7 */
+	0xC4, 0xFA, 0x90, 0x98, 0x90, 0x99, 0xED, 0xA8, /* 0xA8-0xAB */
+	0xD0, 0xFC, 0xE3, 0xA5, 0x90, 0x9A, 0xC3, 0xF5, /* 0xAC-0xAF */
+	0x90, 0x9B, 0xE3, 0xAD, 0xB1, 0xAF, 0x90, 0x9C, /* 0xB0-0xB3 */
+	0xE3, 0xB2, 0x90, 0x9D, 0x90, 0x9E, 0x90, 0x9F, /* 0xB4-0xB7 */
+	0xBC, 0xC2, 0x90, 0xA0, 0x90, 0xA1, 0xE3, 0xAC, /* 0xB8-0xBB */
+	0xB5, 0xBF, 0x90, 0xA2, 0x90, 0xA3, 0x90, 0xA4, /* 0xBC-0xBF */
+	0x90, 0xA5, 0x90, 0xA6, 0x90, 0xA7, 0x90, 0xA8, /* 0xC0-0xC3 */
+	0x90, 0xA9, 0xC7, 0xE9, 0xE3, 0xB0, 0x90, 0xAA, /* 0xC4-0xC7 */
+	0x90, 0xAB, 0x90, 0xAC, 0xBE, 0xAA, 0xCD, 0xEF, /* 0xC8-0xCB */
+	0x90, 0xAD, 0x90, 0xAE, 0x90, 0xAF, 0x90, 0xB0, /* 0xCC-0xCF */
+	0x90, 0xB1, 0xBB, 0xF3, 0x90, 0xB2, 0x90, 0xB3, /* 0xD0-0xD3 */
+	0x90, 0xB4, 0xCC, 0xE8, 0x90, 0xB5, 0x90, 0xB6, /* 0xD4-0xD7 */
+	0xE3, 0xAF, 0x90, 0xB7, 0xE3, 0xB1, 0x90, 0xB8, /* 0xD8-0xDB */
+	0xCF, 0xA7, 0xE3, 0xAE, 0x90, 0xB9, 0xCE, 0xA9, /* 0xDC-0xDF */
+	0xBB, 0xDD, 0x90, 0xBA, 0x90, 0xBB, 0x90, 0xBC, /* 0xE0-0xE3 */
+	0x90, 0xBD, 0x90, 0xBE, 0xB5, 0xEB, 0xBE, 0xE5, /* 0xE4-0xE7 */
+	0xB2, 0xD2, 0xB3, 0xCD, 0x90, 0xBF, 0xB1, 0xB9, /* 0xE8-0xEB */
+	0xE3, 0xAB, 0xB2, 0xD1, 0xB5, 0xAC, 0xB9, 0xDF, /* 0xEC-0xEF */
+	0xB6, 0xE8, 0x90, 0xC0, 0x90, 0xC1, 0xCF, 0xEB, /* 0xF0-0xF3 */
+	0xE3, 0xB7, 0x90, 0xC2, 0xBB, 0xCC, 0x90, 0xC3, /* 0xF4-0xF7 */
+	0x90, 0xC4, 0xC8, 0xC7, 0xD0, 0xCA, 0x90, 0xC5, /* 0xF8-0xFB */
+	0x90, 0xC6, 0x90, 0xC7, 0x90, 0xC8, 0x90, 0xC9, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_61[512] = {
+	0xE3, 0xB8, 0xB3, 0xEE, 0x90, 0xCA, 0x90, 0xCB, /* 0x00-0x03 */
+	0x90, 0xCC, 0x90, 0xCD, 0xED, 0xA9, 0x90, 0xCE, /* 0x04-0x07 */
+	0xD3, 0xFA, 0xD3, 0xE4, 0x90, 0xCF, 0x90, 0xD0, /* 0x08-0x0B */
+	0x90, 0xD1, 0xED, 0xAA, 0xE3, 0xB9, 0xD2, 0xE2, /* 0x0C-0x0F */
+	0x90, 0xD2, 0x90, 0xD3, 0x90, 0xD4, 0x90, 0xD5, /* 0x10-0x13 */
+	0x90, 0xD6, 0xE3, 0xB5, 0x90, 0xD7, 0x90, 0xD8, /* 0x14-0x17 */
+	0x90, 0xD9, 0x90, 0xDA, 0xD3, 0xDE, 0x90, 0xDB, /* 0x18-0x1B */
+	0x90, 0xDC, 0x90, 0xDD, 0x90, 0xDE, 0xB8, 0xD0, /* 0x1C-0x1F */
+	0xE3, 0xB3, 0x90, 0xDF, 0x90, 0xE0, 0xE3, 0xB6, /* 0x20-0x23 */
+	0xB7, 0xDF, 0x90, 0xE1, 0xE3, 0xB4, 0xC0, 0xA2, /* 0x24-0x27 */
+	0x90, 0xE2, 0x90, 0xE3, 0x90, 0xE4, 0xE3, 0xBA, /* 0x28-0x2B */
+	0x90, 0xE5, 0x90, 0xE6, 0x90, 0xE7, 0x90, 0xE8, /* 0x2C-0x2F */
+	0x90, 0xE9, 0x90, 0xEA, 0x90, 0xEB, 0x90, 0xEC, /* 0x30-0x33 */
+	0x90, 0xED, 0x90, 0xEE, 0x90, 0xEF, 0x90, 0xF0, /* 0x34-0x37 */
+	0x90, 0xF1, 0x90, 0xF2, 0x90, 0xF3, 0x90, 0xF4, /* 0x38-0x3B */
+	0x90, 0xF5, 0x90, 0xF6, 0x90, 0xF7, 0xD4, 0xB8, /* 0x3C-0x3F */
+	0x90, 0xF8, 0x90, 0xF9, 0x90, 0xFA, 0x90, 0xFB, /* 0x40-0x43 */
+	0x90, 0xFC, 0x90, 0xFD, 0x90, 0xFE, 0x91, 0x40, /* 0x44-0x47 */
+	0xB4, 0xC8, 0x91, 0x41, 0xE3, 0xBB, 0x91, 0x42, /* 0x48-0x4B */
+	0xBB, 0xC5, 0x91, 0x43, 0xC9, 0xF7, 0x91, 0x44, /* 0x4C-0x4F */
+	0x91, 0x45, 0xC9, 0xE5, 0x91, 0x46, 0x91, 0x47, /* 0x50-0x53 */
+	0x91, 0x48, 0xC4, 0xBD, 0x91, 0x49, 0x91, 0x4A, /* 0x54-0x57 */
+	0x91, 0x4B, 0x91, 0x4C, 0x91, 0x4D, 0x91, 0x4E, /* 0x58-0x5B */
+	0x91, 0x4F, 0xED, 0xAB, 0x91, 0x50, 0x91, 0x51, /* 0x5C-0x5F */
+	0x91, 0x52, 0x91, 0x53, 0xC2, 0xFD, 0x91, 0x54, /* 0x60-0x63 */
+	0x91, 0x55, 0x91, 0x56, 0x91, 0x57, 0xBB, 0xDB, /* 0x64-0x67 */
+	0xBF, 0xAE, 0x91, 0x58, 0x91, 0x59, 0x91, 0x5A, /* 0x68-0x6B */
+	0x91, 0x5B, 0x91, 0x5C, 0x91, 0x5D, 0x91, 0x5E, /* 0x6C-0x6F */
+	0xCE, 0xBF, 0x91, 0x5F, 0x91, 0x60, 0x91, 0x61, /* 0x70-0x73 */
+	0x91, 0x62, 0xE3, 0xBC, 0x91, 0x63, 0xBF, 0xB6, /* 0x74-0x77 */
+	0x91, 0x64, 0x91, 0x65, 0x91, 0x66, 0x91, 0x67, /* 0x78-0x7B */
+	0x91, 0x68, 0x91, 0x69, 0x91, 0x6A, 0x91, 0x6B, /* 0x7C-0x7F */
+	
+	0x91, 0x6C, 0x91, 0x6D, 0x91, 0x6E, 0x91, 0x6F, /* 0x80-0x83 */
+	0x91, 0x70, 0x91, 0x71, 0x91, 0x72, 0x91, 0x73, /* 0x84-0x87 */
+	0x91, 0x74, 0x91, 0x75, 0x91, 0x76, 0xB1, 0xEF, /* 0x88-0x8B */
+	0x91, 0x77, 0x91, 0x78, 0xD4, 0xF7, 0x91, 0x79, /* 0x8C-0x8F */
+	0x91, 0x7A, 0x91, 0x7B, 0x91, 0x7C, 0x91, 0x7D, /* 0x90-0x93 */
+	0xE3, 0xBE, 0x91, 0x7E, 0x91, 0x80, 0x91, 0x81, /* 0x94-0x97 */
+	0x91, 0x82, 0x91, 0x83, 0x91, 0x84, 0x91, 0x85, /* 0x98-0x9B */
+	0x91, 0x86, 0xED, 0xAD, 0x91, 0x87, 0x91, 0x88, /* 0x9C-0x9F */
+	0x91, 0x89, 0x91, 0x8A, 0x91, 0x8B, 0x91, 0x8C, /* 0xA0-0xA3 */
+	0x91, 0x8D, 0x91, 0x8E, 0x91, 0x8F, 0xE3, 0xBF, /* 0xA4-0xA7 */
+	0xBA, 0xA9, 0xED, 0xAC, 0x91, 0x90, 0x91, 0x91, /* 0xA8-0xAB */
+	0xE3, 0xBD, 0x91, 0x92, 0x91, 0x93, 0x91, 0x94, /* 0xAC-0xAF */
+	0x91, 0x95, 0x91, 0x96, 0x91, 0x97, 0x91, 0x98, /* 0xB0-0xB3 */
+	0x91, 0x99, 0x91, 0x9A, 0x91, 0x9B, 0xE3, 0xC0, /* 0xB4-0xB7 */
+	0x91, 0x9C, 0x91, 0x9D, 0x91, 0x9E, 0x91, 0x9F, /* 0xB8-0xBB */
+	0x91, 0xA0, 0x91, 0xA1, 0xBA, 0xB6, 0x91, 0xA2, /* 0xBC-0xBF */
+	0x91, 0xA3, 0x91, 0xA4, 0xB6, 0xAE, 0x91, 0xA5, /* 0xC0-0xC3 */
+	0x91, 0xA6, 0x91, 0xA7, 0x91, 0xA8, 0x91, 0xA9, /* 0xC4-0xC7 */
+	0xD0, 0xB8, 0x91, 0xAA, 0xB0, 0xC3, 0xED, 0xAE, /* 0xC8-0xCB */
+	0x91, 0xAB, 0x91, 0xAC, 0x91, 0xAD, 0x91, 0xAE, /* 0xCC-0xCF */
+	0x91, 0xAF, 0xED, 0xAF, 0xC0, 0xC1, 0x91, 0xB0, /* 0xD0-0xD3 */
+	0xE3, 0xC1, 0x91, 0xB1, 0x91, 0xB2, 0x91, 0xB3, /* 0xD4-0xD7 */
+	0x91, 0xB4, 0x91, 0xB5, 0x91, 0xB6, 0x91, 0xB7, /* 0xD8-0xDB */
+	0x91, 0xB8, 0x91, 0xB9, 0x91, 0xBA, 0x91, 0xBB, /* 0xDC-0xDF */
+	0x91, 0xBC, 0x91, 0xBD, 0x91, 0xBE, 0x91, 0xBF, /* 0xE0-0xE3 */
+	0x91, 0xC0, 0x91, 0xC1, 0xC5, 0xB3, 0x91, 0xC2, /* 0xE4-0xE7 */
+	0x91, 0xC3, 0x91, 0xC4, 0x91, 0xC5, 0x91, 0xC6, /* 0xE8-0xEB */
+	0x91, 0xC7, 0x91, 0xC8, 0x91, 0xC9, 0x91, 0xCA, /* 0xEC-0xEF */
+	0x91, 0xCB, 0x91, 0xCC, 0x91, 0xCD, 0x91, 0xCE, /* 0xF0-0xF3 */
+	0x91, 0xCF, 0xE3, 0xC2, 0x91, 0xD0, 0x91, 0xD1, /* 0xF4-0xF7 */
+	0x91, 0xD2, 0x91, 0xD3, 0x91, 0xD4, 0x91, 0xD5, /* 0xF8-0xFB */
+	0x91, 0xD6, 0x91, 0xD7, 0x91, 0xD8, 0xDC, 0xB2, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_62[512] = {
+	0x91, 0xD9, 0x91, 0xDA, 0x91, 0xDB, 0x91, 0xDC, /* 0x00-0x03 */
+	0x91, 0xDD, 0x91, 0xDE, 0xED, 0xB0, 0x91, 0xDF, /* 0x04-0x07 */
+	0xB8, 0xEA, 0x91, 0xE0, 0xCE, 0xEC, 0xEA, 0xA7, /* 0x08-0x0B */
+	0xD0, 0xE7, 0xCA, 0xF9, 0xC8, 0xD6, 0xCF, 0xB7, /* 0x0C-0x0F */
+	0xB3, 0xC9, 0xCE, 0xD2, 0xBD, 0xE4, 0x91, 0xE1, /* 0x10-0x13 */
+	0x91, 0xE2, 0xE3, 0xDE, 0xBB, 0xF2, 0xEA, 0xA8, /* 0x14-0x17 */
+	0xD5, 0xBD, 0x91, 0xE3, 0xC6, 0xDD, 0xEA, 0xA9, /* 0x18-0x1B */
+	0x91, 0xE4, 0x91, 0xE5, 0x91, 0xE6, 0xEA, 0xAA, /* 0x1C-0x1F */
+	0x91, 0xE7, 0xEA, 0xAC, 0xEA, 0xAB, 0x91, 0xE8, /* 0x20-0x23 */
+	0xEA, 0xAE, 0xEA, 0xAD, 0x91, 0xE9, 0x91, 0xEA, /* 0x24-0x27 */
+	0x91, 0xEB, 0x91, 0xEC, 0xBD, 0xD8, 0x91, 0xED, /* 0x28-0x2B */
+	0xEA, 0xAF, 0x91, 0xEE, 0xC2, 0xBE, 0x91, 0xEF, /* 0x2C-0x2F */
+	0x91, 0xF0, 0x91, 0xF1, 0x91, 0xF2, 0xB4, 0xC1, /* 0x30-0x33 */
+	0xB4, 0xF7, 0x91, 0xF3, 0x91, 0xF4, 0xBB, 0xA7, /* 0x34-0x37 */
+	0x91, 0xF5, 0x91, 0xF6, 0x91, 0xF7, 0x91, 0xF8, /* 0x38-0x3B */
+	0x91, 0xF9, 0xEC, 0xE6, 0xEC, 0xE5, 0xB7, 0xBF, /* 0x3C-0x3F */
+	0xCB, 0xF9, 0xB1, 0xE2, 0x91, 0xFA, 0xEC, 0xE7, /* 0x40-0x43 */
+	0x91, 0xFB, 0x91, 0xFC, 0x91, 0xFD, 0xC9, 0xC8, /* 0x44-0x47 */
+	0xEC, 0xE8, 0xEC, 0xE9, 0x91, 0xFE, 0xCA, 0xD6, /* 0x48-0x4B */
+	0xDE, 0xD0, 0xB2, 0xC5, 0xD4, 0xFA, 0x92, 0x40, /* 0x4C-0x4F */
+	0x92, 0x41, 0xC6, 0xCB, 0xB0, 0xC7, 0xB4, 0xF2, /* 0x50-0x53 */
+	0xC8, 0xD3, 0x92, 0x42, 0x92, 0x43, 0x92, 0x44, /* 0x54-0x57 */
+	0xCD, 0xD0, 0x92, 0x45, 0x92, 0x46, 0xBF, 0xB8, /* 0x58-0x5B */
+	0x92, 0x47, 0x92, 0x48, 0x92, 0x49, 0x92, 0x4A, /* 0x5C-0x5F */
+	0x92, 0x4B, 0x92, 0x4C, 0x92, 0x4D, 0xBF, 0xDB, /* 0x60-0x63 */
+	0x92, 0x4E, 0x92, 0x4F, 0xC7, 0xA4, 0xD6, 0xB4, /* 0x64-0x67 */
+	0x92, 0x50, 0xC0, 0xA9, 0xDE, 0xD1, 0xC9, 0xA8, /* 0x68-0x6B */
+	0xD1, 0xEF, 0xC5, 0xA4, 0xB0, 0xE7, 0xB3, 0xB6, /* 0x6C-0x6F */
+	0xC8, 0xC5, 0x92, 0x51, 0x92, 0x52, 0xB0, 0xE2, /* 0x70-0x73 */
+	0x92, 0x53, 0x92, 0x54, 0xB7, 0xF6, 0x92, 0x55, /* 0x74-0x77 */
+	0x92, 0x56, 0xC5, 0xFA, 0x92, 0x57, 0x92, 0x58, /* 0x78-0x7B */
+	0xB6, 0xF3, 0x92, 0x59, 0xD5, 0xD2, 0xB3, 0xD0, /* 0x7C-0x7F */
+	
+	0xBC, 0xBC, 0x92, 0x5A, 0x92, 0x5B, 0x92, 0x5C, /* 0x80-0x83 */
+	0xB3, 0xAD, 0x92, 0x5D, 0x92, 0x5E, 0x92, 0x5F, /* 0x84-0x87 */
+	0x92, 0x60, 0xBE, 0xF1, 0xB0, 0xD1, 0x92, 0x61, /* 0x88-0x8B */
+	0x92, 0x62, 0x92, 0x63, 0x92, 0x64, 0x92, 0x65, /* 0x8C-0x8F */
+	0x92, 0x66, 0xD2, 0xD6, 0xCA, 0xE3, 0xD7, 0xA5, /* 0x90-0x93 */
+	0x92, 0x67, 0xCD, 0xB6, 0xB6, 0xB6, 0xBF, 0xB9, /* 0x94-0x97 */
+	0xD5, 0xDB, 0x92, 0x68, 0xB8, 0xA7, 0xC5, 0xD7, /* 0x98-0x9B */
+	0x92, 0x69, 0x92, 0x6A, 0x92, 0x6B, 0xDE, 0xD2, /* 0x9C-0x9F */
+	0xBF, 0xD9, 0xC2, 0xD5, 0xC7, 0xC0, 0x92, 0x6C, /* 0xA0-0xA3 */
+	0xBB, 0xA4, 0xB1, 0xA8, 0x92, 0x6D, 0x92, 0x6E, /* 0xA4-0xA7 */
+	0xC5, 0xEA, 0x92, 0x6F, 0x92, 0x70, 0xC5, 0xFB, /* 0xA8-0xAB */
+	0xCC, 0xA7, 0x92, 0x71, 0x92, 0x72, 0x92, 0x73, /* 0xAC-0xAF */
+	0x92, 0x74, 0xB1, 0xA7, 0x92, 0x75, 0x92, 0x76, /* 0xB0-0xB3 */
+	0x92, 0x77, 0xB5, 0xD6, 0x92, 0x78, 0x92, 0x79, /* 0xB4-0xB7 */
+	0x92, 0x7A, 0xC4, 0xA8, 0x92, 0x7B, 0xDE, 0xD3, /* 0xB8-0xBB */
+	0xD1, 0xBA, 0xB3, 0xE9, 0x92, 0x7C, 0xC3, 0xF2, /* 0xBC-0xBF */
+	0x92, 0x7D, 0x92, 0x7E, 0xB7, 0xF7, 0x92, 0x80, /* 0xC0-0xC3 */
+	0xD6, 0xF4, 0xB5, 0xA3, 0xB2, 0xF0, 0xC4, 0xB4, /* 0xC4-0xC7 */
+	0xC4, 0xE9, 0xC0, 0xAD, 0xDE, 0xD4, 0x92, 0x81, /* 0xC8-0xCB */
+	0xB0, 0xE8, 0xC5, 0xC4, 0xC1, 0xE0, 0x92, 0x82, /* 0xCC-0xCF */
+	0xB9, 0xD5, 0x92, 0x83, 0xBE, 0xDC, 0xCD, 0xD8, /* 0xD0-0xD3 */
+	0xB0, 0xCE, 0x92, 0x84, 0xCD, 0xCF, 0xDE, 0xD6, /* 0xD4-0xD7 */
+	0xBE, 0xD0, 0xD7, 0xBE, 0xDE, 0xD5, 0xD5, 0xD0, /* 0xD8-0xDB */
+	0xB0, 0xDD, 0x92, 0x85, 0x92, 0x86, 0xC4, 0xE2, /* 0xDC-0xDF */
+	0x92, 0x87, 0x92, 0x88, 0xC2, 0xA3, 0xBC, 0xF0, /* 0xE0-0xE3 */
+	0x92, 0x89, 0xD3, 0xB5, 0xC0, 0xB9, 0xC5, 0xA1, /* 0xE4-0xE7 */
+	0xB2, 0xA6, 0xD4, 0xF1, 0x92, 0x8A, 0x92, 0x8B, /* 0xE8-0xEB */
+	0xC0, 0xA8, 0xCA, 0xC3, 0xDE, 0xD7, 0xD5, 0xFC, /* 0xEC-0xEF */
+	0x92, 0x8C, 0xB9, 0xB0, 0x92, 0x8D, 0xC8, 0xAD, /* 0xF0-0xF3 */
+	0xCB, 0xA9, 0x92, 0x8E, 0xDE, 0xD9, 0xBF, 0xBD, /* 0xF4-0xF7 */
+	0x92, 0x8F, 0x92, 0x90, 0x92, 0x91, 0x92, 0x92, /* 0xF8-0xFB */
+	0xC6, 0xB4, 0xD7, 0xA7, 0xCA, 0xB0, 0xC4, 0xC3, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_63[512] = {
+	0x92, 0x93, 0xB3, 0xD6, 0xB9, 0xD2, 0x92, 0x94, /* 0x00-0x03 */
+	0x92, 0x95, 0x92, 0x96, 0x92, 0x97, 0xD6, 0xB8, /* 0x04-0x07 */
+	0xEA, 0xFC, 0xB0, 0xB4, 0x92, 0x98, 0x92, 0x99, /* 0x08-0x0B */
+	0x92, 0x9A, 0x92, 0x9B, 0xBF, 0xE6, 0x92, 0x9C, /* 0x0C-0x0F */
+	0x92, 0x9D, 0xCC, 0xF4, 0x92, 0x9E, 0x92, 0x9F, /* 0x10-0x13 */
+	0x92, 0xA0, 0x92, 0xA1, 0xCD, 0xDA, 0x92, 0xA2, /* 0x14-0x17 */
+	0x92, 0xA3, 0x92, 0xA4, 0xD6, 0xBF, 0xC2, 0xCE, /* 0x18-0x1B */
+	0x92, 0xA5, 0xCE, 0xCE, 0xCC, 0xA2, 0xD0, 0xAE, /* 0x1C-0x1F */
+	0xC4, 0xD3, 0xB5, 0xB2, 0xDE, 0xD8, 0xD5, 0xF5, /* 0x20-0x23 */
+	0xBC, 0xB7, 0xBB, 0xD3, 0x92, 0xA6, 0x92, 0xA7, /* 0x24-0x27 */
+	0xB0, 0xA4, 0x92, 0xA8, 0xC5, 0xB2, 0xB4, 0xEC, /* 0x28-0x2B */
+	0x92, 0xA9, 0x92, 0xAA, 0x92, 0xAB, 0xD5, 0xF1, /* 0x2C-0x2F */
+	0x92, 0xAC, 0x92, 0xAD, 0xEA, 0xFD, 0x92, 0xAE, /* 0x30-0x33 */
+	0x92, 0xAF, 0x92, 0xB0, 0x92, 0xB1, 0x92, 0xB2, /* 0x34-0x37 */
+	0x92, 0xB3, 0xDE, 0xDA, 0xCD, 0xA6, 0x92, 0xB4, /* 0x38-0x3B */
+	0x92, 0xB5, 0xCD, 0xEC, 0x92, 0xB6, 0x92, 0xB7, /* 0x3C-0x3F */
+	0x92, 0xB8, 0x92, 0xB9, 0xCE, 0xE6, 0xDE, 0xDC, /* 0x40-0x43 */
+	0x92, 0xBA, 0xCD, 0xB1, 0xC0, 0xA6, 0x92, 0xBB, /* 0x44-0x47 */
+	0x92, 0xBC, 0xD7, 0xBD, 0x92, 0xBD, 0xDE, 0xDB, /* 0x48-0x4B */
+	0xB0, 0xC6, 0xBA, 0xB4, 0xC9, 0xD3, 0xC4, 0xF3, /* 0x4C-0x4F */
+	0xBE, 0xE8, 0x92, 0xBE, 0x92, 0xBF, 0x92, 0xC0, /* 0x50-0x53 */
+	0x92, 0xC1, 0xB2, 0xB6, 0x92, 0xC2, 0x92, 0xC3, /* 0x54-0x57 */
+	0x92, 0xC4, 0x92, 0xC5, 0x92, 0xC6, 0x92, 0xC7, /* 0x58-0x5B */
+	0x92, 0xC8, 0x92, 0xC9, 0xC0, 0xCC, 0xCB, 0xF0, /* 0x5C-0x5F */
+	0x92, 0xCA, 0xBC, 0xF1, 0xBB, 0xBB, 0xB5, 0xB7, /* 0x60-0x63 */
+	0x92, 0xCB, 0x92, 0xCC, 0x92, 0xCD, 0xC5, 0xF5, /* 0x64-0x67 */
+	0x92, 0xCE, 0xDE, 0xE6, 0x92, 0xCF, 0x92, 0xD0, /* 0x68-0x6B */
+	0x92, 0xD1, 0xDE, 0xE3, 0xBE, 0xDD, 0x92, 0xD2, /* 0x6C-0x6F */
+	0x92, 0xD3, 0xDE, 0xDF, 0x92, 0xD4, 0x92, 0xD5, /* 0x70-0x73 */
+	0x92, 0xD6, 0x92, 0xD7, 0xB4, 0xB7, 0xBD, 0xDD, /* 0x74-0x77 */
+	0x92, 0xD8, 0x92, 0xD9, 0xDE, 0xE0, 0xC4, 0xED, /* 0x78-0x7B */
+	0x92, 0xDA, 0x92, 0xDB, 0x92, 0xDC, 0x92, 0xDD, /* 0x7C-0x7F */
+	
+	0xCF, 0xC6, 0x92, 0xDE, 0xB5, 0xE0, 0x92, 0xDF, /* 0x80-0x83 */
+	0x92, 0xE0, 0x92, 0xE1, 0x92, 0xE2, 0xB6, 0xDE, /* 0x84-0x87 */
+	0xCA, 0xDA, 0xB5, 0xF4, 0xDE, 0xE5, 0x92, 0xE3, /* 0x88-0x8B */
+	0xD5, 0xC6, 0x92, 0xE4, 0xDE, 0xE1, 0xCC, 0xCD, /* 0x8C-0x8F */
+	0xC6, 0xFE, 0x92, 0xE5, 0xC5, 0xC5, 0x92, 0xE6, /* 0x90-0x93 */
+	0x92, 0xE7, 0x92, 0xE8, 0xD2, 0xB4, 0x92, 0xE9, /* 0x94-0x97 */
+	0xBE, 0xF2, 0x92, 0xEA, 0x92, 0xEB, 0x92, 0xEC, /* 0x98-0x9B */
+	0x92, 0xED, 0x92, 0xEE, 0x92, 0xEF, 0x92, 0xF0, /* 0x9C-0x9F */
+	0xC2, 0xD3, 0x92, 0xF1, 0xCC, 0xBD, 0xB3, 0xB8, /* 0xA0-0xA3 */
+	0x92, 0xF2, 0xBD, 0xD3, 0x92, 0xF3, 0xBF, 0xD8, /* 0xA4-0xA7 */
+	0xCD, 0xC6, 0xD1, 0xDA, 0xB4, 0xEB, 0x92, 0xF4, /* 0xA8-0xAB */
+	0xDE, 0xE4, 0xDE, 0xDD, 0xDE, 0xE7, 0x92, 0xF5, /* 0xAC-0xAF */
+	0xEA, 0xFE, 0x92, 0xF6, 0x92, 0xF7, 0xC2, 0xB0, /* 0xB0-0xB3 */
+	0xDE, 0xE2, 0x92, 0xF8, 0x92, 0xF9, 0xD6, 0xC0, /* 0xB4-0xB7 */
+	0xB5, 0xA7, 0x92, 0xFA, 0xB2, 0xF4, 0x92, 0xFB, /* 0xB8-0xBB */
+	0xDE, 0xE8, 0x92, 0xFC, 0xDE, 0xF2, 0x92, 0xFD, /* 0xBC-0xBF */
+	0x92, 0xFE, 0x93, 0x40, 0x93, 0x41, 0x93, 0x42, /* 0xC0-0xC3 */
+	0xDE, 0xED, 0x93, 0x43, 0xDE, 0xF1, 0x93, 0x44, /* 0xC4-0xC7 */
+	0x93, 0x45, 0xC8, 0xE0, 0x93, 0x46, 0x93, 0x47, /* 0xC8-0xCB */
+	0x93, 0x48, 0xD7, 0xE1, 0xDE, 0xEF, 0xC3, 0xE8, /* 0xCC-0xCF */
+	0xCC, 0xE1, 0x93, 0x49, 0xB2, 0xE5, 0x93, 0x4A, /* 0xD0-0xD3 */
+	0x93, 0x4B, 0x93, 0x4C, 0xD2, 0xBE, 0x93, 0x4D, /* 0xD4-0xD7 */
+	0x93, 0x4E, 0x93, 0x4F, 0x93, 0x50, 0x93, 0x51, /* 0xD8-0xDB */
+	0x93, 0x52, 0x93, 0x53, 0xDE, 0xEE, 0x93, 0x54, /* 0xDC-0xDF */
+	0xDE, 0xEB, 0xCE, 0xD5, 0x93, 0x55, 0xB4, 0xA7, /* 0xE0-0xE3 */
+	0x93, 0x56, 0x93, 0x57, 0x93, 0x58, 0x93, 0x59, /* 0xE4-0xE7 */
+	0x93, 0x5A, 0xBF, 0xAB, 0xBE, 0xBE, 0x93, 0x5B, /* 0xE8-0xEB */
+	0x93, 0x5C, 0xBD, 0xD2, 0x93, 0x5D, 0x93, 0x5E, /* 0xEC-0xEF */
+	0x93, 0x5F, 0x93, 0x60, 0xDE, 0xE9, 0x93, 0x61, /* 0xF0-0xF3 */
+	0xD4, 0xAE, 0x93, 0x62, 0xDE, 0xDE, 0x93, 0x63, /* 0xF4-0xF7 */
+	0xDE, 0xEA, 0x93, 0x64, 0x93, 0x65, 0x93, 0x66, /* 0xF8-0xFB */
+	0x93, 0x67, 0xC0, 0xBF, 0x93, 0x68, 0xDE, 0xEC, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_64[512] = {
+	0xB2, 0xF3, 0xB8, 0xE9, 0xC2, 0xA7, 0x93, 0x69, /* 0x00-0x03 */
+	0x93, 0x6A, 0xBD, 0xC1, 0x93, 0x6B, 0x93, 0x6C, /* 0x04-0x07 */
+	0x93, 0x6D, 0x93, 0x6E, 0x93, 0x6F, 0xDE, 0xF5, /* 0x08-0x0B */
+	0xDE, 0xF8, 0x93, 0x70, 0x93, 0x71, 0xB2, 0xAB, /* 0x0C-0x0F */
+	0xB4, 0xA4, 0x93, 0x72, 0x93, 0x73, 0xB4, 0xEA, /* 0x10-0x13 */
+	0xC9, 0xA6, 0x93, 0x74, 0x93, 0x75, 0x93, 0x76, /* 0x14-0x17 */
+	0x93, 0x77, 0x93, 0x78, 0x93, 0x79, 0xDE, 0xF6, /* 0x18-0x1B */
+	0xCB, 0xD1, 0x93, 0x7A, 0xB8, 0xE3, 0x93, 0x7B, /* 0x1C-0x1F */
+	0xDE, 0xF7, 0xDE, 0xFA, 0x93, 0x7C, 0x93, 0x7D, /* 0x20-0x23 */
+	0x93, 0x7E, 0x93, 0x80, 0xDE, 0xF9, 0x93, 0x81, /* 0x24-0x27 */
+	0x93, 0x82, 0x93, 0x83, 0xCC, 0xC2, 0x93, 0x84, /* 0x28-0x2B */
+	0xB0, 0xE1, 0xB4, 0xEE, 0x93, 0x85, 0x93, 0x86, /* 0x2C-0x2F */
+	0x93, 0x87, 0x93, 0x88, 0x93, 0x89, 0x93, 0x8A, /* 0x30-0x33 */
+	0xE5, 0xBA, 0x93, 0x8B, 0x93, 0x8C, 0x93, 0x8D, /* 0x34-0x37 */
+	0x93, 0x8E, 0x93, 0x8F, 0xD0, 0xAF, 0x93, 0x90, /* 0x38-0x3B */
+	0x93, 0x91, 0xB2, 0xEB, 0x93, 0x92, 0xEB, 0xA1, /* 0x3C-0x3F */
+	0x93, 0x93, 0xDE, 0xF4, 0x93, 0x94, 0x93, 0x95, /* 0x40-0x43 */
+	0xC9, 0xE3, 0xDE, 0xF3, 0xB0, 0xDA, 0xD2, 0xA1, /* 0x44-0x47 */
+	0xB1, 0xF7, 0x93, 0x96, 0xCC, 0xAF, 0x93, 0x97, /* 0x48-0x4B */
+	0x93, 0x98, 0x93, 0x99, 0x93, 0x9A, 0x93, 0x9B, /* 0x4C-0x4F */
+	0x93, 0x9C, 0x93, 0x9D, 0xDE, 0xF0, 0x93, 0x9E, /* 0x50-0x53 */
+	0xCB, 0xA4, 0x93, 0x9F, 0x93, 0xA0, 0x93, 0xA1, /* 0x54-0x57 */
+	0xD5, 0xAA, 0x93, 0xA2, 0x93, 0xA3, 0x93, 0xA4, /* 0x58-0x5B */
+	0x93, 0xA5, 0x93, 0xA6, 0xDE, 0xFB, 0x93, 0xA7, /* 0x5C-0x5F */
+	0x93, 0xA8, 0x93, 0xA9, 0x93, 0xAA, 0x93, 0xAB, /* 0x60-0x63 */
+	0x93, 0xAC, 0x93, 0xAD, 0x93, 0xAE, 0xB4, 0xDD, /* 0x64-0x67 */
+	0x93, 0xAF, 0xC4, 0xA6, 0x93, 0xB0, 0x93, 0xB1, /* 0x68-0x6B */
+	0x93, 0xB2, 0xDE, 0xFD, 0x93, 0xB3, 0x93, 0xB4, /* 0x6C-0x6F */
+	0x93, 0xB5, 0x93, 0xB6, 0x93, 0xB7, 0x93, 0xB8, /* 0x70-0x73 */
+	0x93, 0xB9, 0x93, 0xBA, 0x93, 0xBB, 0x93, 0xBC, /* 0x74-0x77 */
+	0xC3, 0xFE, 0xC4, 0xA1, 0xDF, 0xA1, 0x93, 0xBD, /* 0x78-0x7B */
+	0x93, 0xBE, 0x93, 0xBF, 0x93, 0xC0, 0x93, 0xC1, /* 0x7C-0x7F */
+	
+	0x93, 0xC2, 0x93, 0xC3, 0xC1, 0xCC, 0x93, 0xC4, /* 0x80-0x83 */
+	0xDE, 0xFC, 0xBE, 0xEF, 0x93, 0xC5, 0xC6, 0xB2, /* 0x84-0x87 */
+	0x93, 0xC6, 0x93, 0xC7, 0x93, 0xC8, 0x93, 0xC9, /* 0x88-0x8B */
+	0x93, 0xCA, 0x93, 0xCB, 0x93, 0xCC, 0x93, 0xCD, /* 0x8C-0x8F */
+	0x93, 0xCE, 0xB3, 0xC5, 0xC8, 0xF6, 0x93, 0xCF, /* 0x90-0x93 */
+	0x93, 0xD0, 0xCB, 0xBA, 0xDE, 0xFE, 0x93, 0xD1, /* 0x94-0x97 */
+	0x93, 0xD2, 0xDF, 0xA4, 0x93, 0xD3, 0x93, 0xD4, /* 0x98-0x9B */
+	0x93, 0xD5, 0x93, 0xD6, 0xD7, 0xB2, 0x93, 0xD7, /* 0x9C-0x9F */
+	0x93, 0xD8, 0x93, 0xD9, 0x93, 0xDA, 0x93, 0xDB, /* 0xA0-0xA3 */
+	0xB3, 0xB7, 0x93, 0xDC, 0x93, 0xDD, 0x93, 0xDE, /* 0xA4-0xA7 */
+	0x93, 0xDF, 0xC1, 0xC3, 0x93, 0xE0, 0x93, 0xE1, /* 0xA8-0xAB */
+	0xC7, 0xCB, 0xB2, 0xA5, 0xB4, 0xE9, 0x93, 0xE2, /* 0xAC-0xAF */
+	0xD7, 0xAB, 0x93, 0xE3, 0x93, 0xE4, 0x93, 0xE5, /* 0xB0-0xB3 */
+	0x93, 0xE6, 0xC4, 0xEC, 0x93, 0xE7, 0xDF, 0xA2, /* 0xB4-0xB7 */
+	0xDF, 0xA3, 0x93, 0xE8, 0xDF, 0xA5, 0x93, 0xE9, /* 0xB8-0xBB */
+	0xBA, 0xB3, 0x93, 0xEA, 0x93, 0xEB, 0x93, 0xEC, /* 0xBC-0xBF */
+	0xDF, 0xA6, 0x93, 0xED, 0xC0, 0xDE, 0x93, 0xEE, /* 0xC0-0xC3 */
+	0x93, 0xEF, 0xC9, 0xC3, 0x93, 0xF0, 0x93, 0xF1, /* 0xC4-0xC7 */
+	0x93, 0xF2, 0x93, 0xF3, 0x93, 0xF4, 0x93, 0xF5, /* 0xC8-0xCB */
+	0x93, 0xF6, 0xB2, 0xD9, 0xC7, 0xE6, 0x93, 0xF7, /* 0xCC-0xCF */
+	0xDF, 0xA7, 0x93, 0xF8, 0xC7, 0xDC, 0x93, 0xF9, /* 0xD0-0xD3 */
+	0x93, 0xFA, 0x93, 0xFB, 0x93, 0xFC, 0xDF, 0xA8, /* 0xD4-0xD7 */
+	0xEB, 0xA2, 0x93, 0xFD, 0x93, 0xFE, 0x94, 0x40, /* 0xD8-0xDB */
+	0x94, 0x41, 0x94, 0x42, 0xCB, 0xD3, 0x94, 0x43, /* 0xDC-0xDF */
+	0x94, 0x44, 0x94, 0x45, 0xDF, 0xAA, 0x94, 0x46, /* 0xE0-0xE3 */
+	0xDF, 0xA9, 0x94, 0x47, 0xB2, 0xC1, 0x94, 0x48, /* 0xE4-0xE7 */
+	0x94, 0x49, 0x94, 0x4A, 0x94, 0x4B, 0x94, 0x4C, /* 0xE8-0xEB */
+	0x94, 0x4D, 0x94, 0x4E, 0x94, 0x4F, 0x94, 0x50, /* 0xEC-0xEF */
+	0x94, 0x51, 0x94, 0x52, 0x94, 0x53, 0x94, 0x54, /* 0xF0-0xF3 */
+	0x94, 0x55, 0x94, 0x56, 0x94, 0x57, 0x94, 0x58, /* 0xF4-0xF7 */
+	0x94, 0x59, 0x94, 0x5A, 0x94, 0x5B, 0x94, 0x5C, /* 0xF8-0xFB */
+	0x94, 0x5D, 0x94, 0x5E, 0x94, 0x5F, 0x94, 0x60, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_65[512] = {
+	0xC5, 0xCA, 0x94, 0x61, 0x94, 0x62, 0x94, 0x63, /* 0x00-0x03 */
+	0x94, 0x64, 0x94, 0x65, 0x94, 0x66, 0x94, 0x67, /* 0x04-0x07 */
+	0x94, 0x68, 0xDF, 0xAB, 0x94, 0x69, 0x94, 0x6A, /* 0x08-0x0B */
+	0x94, 0x6B, 0x94, 0x6C, 0x94, 0x6D, 0x94, 0x6E, /* 0x0C-0x0F */
+	0x94, 0x6F, 0x94, 0x70, 0xD4, 0xDC, 0x94, 0x71, /* 0x10-0x13 */
+	0x94, 0x72, 0x94, 0x73, 0x94, 0x74, 0x94, 0x75, /* 0x14-0x17 */
+	0xC8, 0xC1, 0x94, 0x76, 0x94, 0x77, 0x94, 0x78, /* 0x18-0x1B */
+	0x94, 0x79, 0x94, 0x7A, 0x94, 0x7B, 0x94, 0x7C, /* 0x1C-0x1F */
+	0x94, 0x7D, 0x94, 0x7E, 0x94, 0x80, 0x94, 0x81, /* 0x20-0x23 */
+	0x94, 0x82, 0xDF, 0xAC, 0x94, 0x83, 0x94, 0x84, /* 0x24-0x27 */
+	0x94, 0x85, 0x94, 0x86, 0x94, 0x87, 0xBE, 0xF0, /* 0x28-0x2B */
+	0x94, 0x88, 0x94, 0x89, 0xDF, 0xAD, 0xD6, 0xA7, /* 0x2C-0x2F */
+	0x94, 0x8A, 0x94, 0x8B, 0x94, 0x8C, 0x94, 0x8D, /* 0x30-0x33 */
+	0xEA, 0xB7, 0xEB, 0xB6, 0xCA, 0xD5, 0x94, 0x8E, /* 0x34-0x37 */
+	0xD8, 0xFC, 0xB8, 0xC4, 0x94, 0x8F, 0xB9, 0xA5, /* 0x38-0x3B */
+	0x94, 0x90, 0x94, 0x91, 0xB7, 0xC5, 0xD5, 0xFE, /* 0x3C-0x3F */
+	0x94, 0x92, 0x94, 0x93, 0x94, 0x94, 0x94, 0x95, /* 0x40-0x43 */
+	0x94, 0x96, 0xB9, 0xCA, 0x94, 0x97, 0x94, 0x98, /* 0x44-0x47 */
+	0xD0, 0xA7, 0xF4, 0xCD, 0x94, 0x99, 0x94, 0x9A, /* 0x48-0x4B */
+	0xB5, 0xD0, 0x94, 0x9B, 0x94, 0x9C, 0xC3, 0xF4, /* 0x4C-0x4F */
+	0x94, 0x9D, 0xBE, 0xC8, 0x94, 0x9E, 0x94, 0x9F, /* 0x50-0x53 */
+	0x94, 0xA0, 0xEB, 0xB7, 0xB0, 0xBD, 0x94, 0xA1, /* 0x54-0x57 */
+	0x94, 0xA2, 0xBD, 0xCC, 0x94, 0xA3, 0xC1, 0xB2, /* 0x58-0x5B */
+	0x94, 0xA4, 0xB1, 0xD6, 0xB3, 0xA8, 0x94, 0xA5, /* 0x5C-0x5F */
+	0x94, 0xA6, 0x94, 0xA7, 0xB8, 0xD2, 0xC9, 0xA2, /* 0x60-0x63 */
+	0x94, 0xA8, 0x94, 0xA9, 0xB6, 0xD8, 0x94, 0xAA, /* 0x64-0x67 */
+	0x94, 0xAB, 0x94, 0xAC, 0x94, 0xAD, 0xEB, 0xB8, /* 0x68-0x6B */
+	0xBE, 0xB4, 0x94, 0xAE, 0x94, 0xAF, 0x94, 0xB0, /* 0x6C-0x6F */
+	0xCA, 0xFD, 0x94, 0xB1, 0xC7, 0xC3, 0x94, 0xB2, /* 0x70-0x73 */
+	0xD5, 0xFB, 0x94, 0xB3, 0x94, 0xB4, 0xB7, 0xF3, /* 0x74-0x77 */
+	0x94, 0xB5, 0x94, 0xB6, 0x94, 0xB7, 0x94, 0xB8, /* 0x78-0x7B */
+	0x94, 0xB9, 0x94, 0xBA, 0x94, 0xBB, 0x94, 0xBC, /* 0x7C-0x7F */
+	
+	0x94, 0xBD, 0x94, 0xBE, 0x94, 0xBF, 0x94, 0xC0, /* 0x80-0x83 */
+	0x94, 0xC1, 0x94, 0xC2, 0x94, 0xC3, 0xCE, 0xC4, /* 0x84-0x87 */
+	0x94, 0xC4, 0x94, 0xC5, 0x94, 0xC6, 0xD5, 0xAB, /* 0x88-0x8B */
+	0xB1, 0xF3, 0x94, 0xC7, 0x94, 0xC8, 0x94, 0xC9, /* 0x8C-0x8F */
+	0xEC, 0xB3, 0xB0, 0xDF, 0x94, 0xCA, 0xEC, 0xB5, /* 0x90-0x93 */
+	0x94, 0xCB, 0x94, 0xCC, 0x94, 0xCD, 0xB6, 0xB7, /* 0x94-0x97 */
+	0x94, 0xCE, 0xC1, 0xCF, 0x94, 0xCF, 0xF5, 0xFA, /* 0x98-0x9B */
+	0xD0, 0xB1, 0x94, 0xD0, 0x94, 0xD1, 0xD5, 0xE5, /* 0x9C-0x9F */
+	0x94, 0xD2, 0xCE, 0xD3, 0x94, 0xD3, 0x94, 0xD4, /* 0xA0-0xA3 */
+	0xBD, 0xEF, 0xB3, 0xE2, 0x94, 0xD5, 0xB8, 0xAB, /* 0xA4-0xA7 */
+	0x94, 0xD6, 0xD5, 0xB6, 0x94, 0xD7, 0xED, 0xBD, /* 0xA8-0xAB */
+	0x94, 0xD8, 0xB6, 0xCF, 0x94, 0xD9, 0xCB, 0xB9, /* 0xAC-0xAF */
+	0xD0, 0xC2, 0x94, 0xDA, 0x94, 0xDB, 0x94, 0xDC, /* 0xB0-0xB3 */
+	0x94, 0xDD, 0x94, 0xDE, 0x94, 0xDF, 0x94, 0xE0, /* 0xB4-0xB7 */
+	0x94, 0xE1, 0xB7, 0xBD, 0x94, 0xE2, 0x94, 0xE3, /* 0xB8-0xBB */
+	0xEC, 0xB6, 0xCA, 0xA9, 0x94, 0xE4, 0x94, 0xE5, /* 0xBC-0xBF */
+	0x94, 0xE6, 0xC5, 0xD4, 0x94, 0xE7, 0xEC, 0xB9, /* 0xC0-0xC3 */
+	0xEC, 0xB8, 0xC2, 0xC3, 0xEC, 0xB7, 0x94, 0xE8, /* 0xC4-0xC7 */
+	0x94, 0xE9, 0x94, 0xEA, 0x94, 0xEB, 0xD0, 0xFD, /* 0xC8-0xCB */
+	0xEC, 0xBA, 0x94, 0xEC, 0xEC, 0xBB, 0xD7, 0xE5, /* 0xCC-0xCF */
+	0x94, 0xED, 0x94, 0xEE, 0xEC, 0xBC, 0x94, 0xEF, /* 0xD0-0xD3 */
+	0x94, 0xF0, 0x94, 0xF1, 0xEC, 0xBD, 0xC6, 0xEC, /* 0xD4-0xD7 */
+	0x94, 0xF2, 0x94, 0xF3, 0x94, 0xF4, 0x94, 0xF5, /* 0xD8-0xDB */
+	0x94, 0xF6, 0x94, 0xF7, 0x94, 0xF8, 0x94, 0xF9, /* 0xDC-0xDF */
+	0xCE, 0xDE, 0x94, 0xFA, 0xBC, 0xC8, 0x94, 0xFB, /* 0xE0-0xE3 */
+	0x94, 0xFC, 0xC8, 0xD5, 0xB5, 0xA9, 0xBE, 0xC9, /* 0xE4-0xE7 */
+	0xD6, 0xBC, 0xD4, 0xE7, 0x94, 0xFD, 0x94, 0xFE, /* 0xE8-0xEB */
+	0xD1, 0xAE, 0xD0, 0xF1, 0xEA, 0xB8, 0xEA, 0xB9, /* 0xEC-0xEF */
+	0xEA, 0xBA, 0xBA, 0xB5, 0x95, 0x40, 0x95, 0x41, /* 0xF0-0xF3 */
+	0x95, 0x42, 0x95, 0x43, 0xCA, 0xB1, 0xBF, 0xF5, /* 0xF4-0xF7 */
+	0x95, 0x44, 0x95, 0x45, 0xCD, 0xFA, 0x95, 0x46, /* 0xF8-0xFB */
+	0x95, 0x47, 0x95, 0x48, 0x95, 0x49, 0x95, 0x4A, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_66[512] = {
+	0xEA, 0xC0, 0x95, 0x4B, 0xB0, 0xBA, 0xEA, 0xBE, /* 0x00-0x03 */
+	0x95, 0x4C, 0x95, 0x4D, 0xC0, 0xA5, 0x95, 0x4E, /* 0x04-0x07 */
+	0x95, 0x4F, 0x95, 0x50, 0xEA, 0xBB, 0x95, 0x51, /* 0x08-0x0B */
+	0xB2, 0xFD, 0x95, 0x52, 0xC3, 0xF7, 0xBB, 0xE8, /* 0x0C-0x0F */
+	0x95, 0x53, 0x95, 0x54, 0x95, 0x55, 0xD2, 0xD7, /* 0x10-0x13 */
+	0xCE, 0xF4, 0xEA, 0xBF, 0x95, 0x56, 0x95, 0x57, /* 0x14-0x17 */
+	0x95, 0x58, 0xEA, 0xBC, 0x95, 0x59, 0x95, 0x5A, /* 0x18-0x1B */
+	0x95, 0x5B, 0xEA, 0xC3, 0x95, 0x5C, 0xD0, 0xC7, /* 0x1C-0x1F */
+	0xD3, 0xB3, 0x95, 0x5D, 0x95, 0x5E, 0x95, 0x5F, /* 0x20-0x23 */
+	0x95, 0x60, 0xB4, 0xBA, 0x95, 0x61, 0xC3, 0xC1, /* 0x24-0x27 */
+	0xD7, 0xF2, 0x95, 0x62, 0x95, 0x63, 0x95, 0x64, /* 0x28-0x2B */
+	0x95, 0x65, 0xD5, 0xD1, 0x95, 0x66, 0xCA, 0xC7, /* 0x2C-0x2F */
+	0x95, 0x67, 0xEA, 0xC5, 0x95, 0x68, 0x95, 0x69, /* 0x30-0x33 */
+	0xEA, 0xC4, 0xEA, 0xC7, 0xEA, 0xC6, 0x95, 0x6A, /* 0x34-0x37 */
+	0x95, 0x6B, 0x95, 0x6C, 0x95, 0x6D, 0x95, 0x6E, /* 0x38-0x3B */
+	0xD6, 0xE7, 0x95, 0x6F, 0xCF, 0xD4, 0x95, 0x70, /* 0x3C-0x3F */
+	0x95, 0x71, 0xEA, 0xCB, 0x95, 0x72, 0xBB, 0xCE, /* 0x40-0x43 */
+	0x95, 0x73, 0x95, 0x74, 0x95, 0x75, 0x95, 0x76, /* 0x44-0x47 */
+	0x95, 0x77, 0x95, 0x78, 0x95, 0x79, 0xBD, 0xFA, /* 0x48-0x4B */
+	0xC9, 0xCE, 0x95, 0x7A, 0x95, 0x7B, 0xEA, 0xCC, /* 0x4C-0x4F */
+	0x95, 0x7C, 0x95, 0x7D, 0xC9, 0xB9, 0xCF, 0xFE, /* 0x50-0x53 */
+	0xEA, 0xCA, 0xD4, 0xCE, 0xEA, 0xCD, 0xEA, 0xCF, /* 0x54-0x57 */
+	0x95, 0x7E, 0x95, 0x80, 0xCD, 0xED, 0x95, 0x81, /* 0x58-0x5B */
+	0x95, 0x82, 0x95, 0x83, 0x95, 0x84, 0xEA, 0xC9, /* 0x5C-0x5F */
+	0x95, 0x85, 0xEA, 0xCE, 0x95, 0x86, 0x95, 0x87, /* 0x60-0x63 */
+	0xCE, 0xEE, 0x95, 0x88, 0xBB, 0xDE, 0x95, 0x89, /* 0x64-0x67 */
+	0xB3, 0xBF, 0x95, 0x8A, 0x95, 0x8B, 0x95, 0x8C, /* 0x68-0x6B */
+	0x95, 0x8D, 0x95, 0x8E, 0xC6, 0xD5, 0xBE, 0xB0, /* 0x6C-0x6F */
+	0xCE, 0xFA, 0x95, 0x8F, 0x95, 0x90, 0x95, 0x91, /* 0x70-0x73 */
+	0xC7, 0xE7, 0x95, 0x92, 0xBE, 0xA7, 0xEA, 0xD0, /* 0x74-0x77 */
+	0x95, 0x93, 0x95, 0x94, 0xD6, 0xC7, 0x95, 0x95, /* 0x78-0x7B */
+	0x95, 0x96, 0x95, 0x97, 0xC1, 0xC0, 0x95, 0x98, /* 0x7C-0x7F */
+	
+	0x95, 0x99, 0x95, 0x9A, 0xD4, 0xDD, 0x95, 0x9B, /* 0x80-0x83 */
+	0xEA, 0xD1, 0x95, 0x9C, 0x95, 0x9D, 0xCF, 0xBE, /* 0x84-0x87 */
+	0x95, 0x9E, 0x95, 0x9F, 0x95, 0xA0, 0x95, 0xA1, /* 0x88-0x8B */
+	0xEA, 0xD2, 0x95, 0xA2, 0x95, 0xA3, 0x95, 0xA4, /* 0x8C-0x8F */
+	0x95, 0xA5, 0xCA, 0xEE, 0x95, 0xA6, 0x95, 0xA7, /* 0x90-0x93 */
+	0x95, 0xA8, 0x95, 0xA9, 0xC5, 0xAF, 0xB0, 0xB5, /* 0x94-0x97 */
+	0x95, 0xAA, 0x95, 0xAB, 0x95, 0xAC, 0x95, 0xAD, /* 0x98-0x9B */
+	0x95, 0xAE, 0xEA, 0xD4, 0x95, 0xAF, 0x95, 0xB0, /* 0x9C-0x9F */
+	0x95, 0xB1, 0x95, 0xB2, 0x95, 0xB3, 0x95, 0xB4, /* 0xA0-0xA3 */
+	0x95, 0xB5, 0x95, 0xB6, 0x95, 0xB7, 0xEA, 0xD3, /* 0xA4-0xA7 */
+	0xF4, 0xDF, 0x95, 0xB8, 0x95, 0xB9, 0x95, 0xBA, /* 0xA8-0xAB */
+	0x95, 0xBB, 0x95, 0xBC, 0xC4, 0xBA, 0x95, 0xBD, /* 0xAC-0xAF */
+	0x95, 0xBE, 0x95, 0xBF, 0x95, 0xC0, 0x95, 0xC1, /* 0xB0-0xB3 */
+	0xB1, 0xA9, 0x95, 0xC2, 0x95, 0xC3, 0x95, 0xC4, /* 0xB4-0xB7 */
+	0x95, 0xC5, 0xE5, 0xDF, 0x95, 0xC6, 0x95, 0xC7, /* 0xB8-0xBB */
+	0x95, 0xC8, 0x95, 0xC9, 0xEA, 0xD5, 0x95, 0xCA, /* 0xBC-0xBF */
+	0x95, 0xCB, 0x95, 0xCC, 0x95, 0xCD, 0x95, 0xCE, /* 0xC0-0xC3 */
+	0x95, 0xCF, 0x95, 0xD0, 0x95, 0xD1, 0x95, 0xD2, /* 0xC4-0xC7 */
+	0x95, 0xD3, 0x95, 0xD4, 0x95, 0xD5, 0x95, 0xD6, /* 0xC8-0xCB */
+	0x95, 0xD7, 0x95, 0xD8, 0x95, 0xD9, 0x95, 0xDA, /* 0xCC-0xCF */
+	0x95, 0xDB, 0x95, 0xDC, 0x95, 0xDD, 0x95, 0xDE, /* 0xD0-0xD3 */
+	0x95, 0xDF, 0x95, 0xE0, 0x95, 0xE1, 0x95, 0xE2, /* 0xD4-0xD7 */
+	0x95, 0xE3, 0xCA, 0xEF, 0x95, 0xE4, 0xEA, 0xD6, /* 0xD8-0xDB */
+	0xEA, 0xD7, 0xC6, 0xD8, 0x95, 0xE5, 0x95, 0xE6, /* 0xDC-0xDF */
+	0x95, 0xE7, 0x95, 0xE8, 0x95, 0xE9, 0x95, 0xEA, /* 0xE0-0xE3 */
+	0x95, 0xEB, 0x95, 0xEC, 0xEA, 0xD8, 0x95, 0xED, /* 0xE4-0xE7 */
+	0x95, 0xEE, 0xEA, 0xD9, 0x95, 0xEF, 0x95, 0xF0, /* 0xE8-0xEB */
+	0x95, 0xF1, 0x95, 0xF2, 0x95, 0xF3, 0x95, 0xF4, /* 0xEC-0xEF */
+	0xD4, 0xBB, 0x95, 0xF5, 0xC7, 0xFA, 0xD2, 0xB7, /* 0xF0-0xF3 */
+	0xB8, 0xFC, 0x95, 0xF6, 0x95, 0xF7, 0xEA, 0xC2, /* 0xF4-0xF7 */
+	0x95, 0xF8, 0xB2, 0xDC, 0x95, 0xF9, 0x95, 0xFA, /* 0xF8-0xFB */
+	0xC2, 0xFC, 0x95, 0xFB, 0xD4, 0xF8, 0xCC, 0xE6, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_67[512] = {
+	0xD7, 0xEE, 0x95, 0xFC, 0x95, 0xFD, 0x95, 0xFE, /* 0x00-0x03 */
+	0x96, 0x40, 0x96, 0x41, 0x96, 0x42, 0x96, 0x43, /* 0x04-0x07 */
+	0xD4, 0xC2, 0xD3, 0xD0, 0xEB, 0xC3, 0xC5, 0xF3, /* 0x08-0x0B */
+	0x96, 0x44, 0xB7, 0xFE, 0x96, 0x45, 0x96, 0x46, /* 0x0C-0x0F */
+	0xEB, 0xD4, 0x96, 0x47, 0x96, 0x48, 0x96, 0x49, /* 0x10-0x13 */
+	0xCB, 0xB7, 0xEB, 0xDE, 0x96, 0x4A, 0xC0, 0xCA, /* 0x14-0x17 */
+	0x96, 0x4B, 0x96, 0x4C, 0x96, 0x4D, 0xCD, 0xFB, /* 0x18-0x1B */
+	0x96, 0x4E, 0xB3, 0xAF, 0x96, 0x4F, 0xC6, 0xDA, /* 0x1C-0x1F */
+	0x96, 0x50, 0x96, 0x51, 0x96, 0x52, 0x96, 0x53, /* 0x20-0x23 */
+	0x96, 0x54, 0x96, 0x55, 0xEB, 0xFC, 0x96, 0x56, /* 0x24-0x27 */
+	0xC4, 0xBE, 0x96, 0x57, 0xCE, 0xB4, 0xC4, 0xA9, /* 0x28-0x2B */
+	0xB1, 0xBE, 0xD4, 0xFD, 0x96, 0x58, 0xCA, 0xF5, /* 0x2C-0x2F */
+	0x96, 0x59, 0xD6, 0xEC, 0x96, 0x5A, 0x96, 0x5B, /* 0x30-0x33 */
+	0xC6, 0xD3, 0xB6, 0xE4, 0x96, 0x5C, 0x96, 0x5D, /* 0x34-0x37 */
+	0x96, 0x5E, 0x96, 0x5F, 0xBB, 0xFA, 0x96, 0x60, /* 0x38-0x3B */
+	0x96, 0x61, 0xD0, 0xE0, 0x96, 0x62, 0x96, 0x63, /* 0x3C-0x3F */
+	0xC9, 0xB1, 0x96, 0x64, 0xD4, 0xD3, 0xC8, 0xA8, /* 0x40-0x43 */
+	0x96, 0x65, 0x96, 0x66, 0xB8, 0xCB, 0x96, 0x67, /* 0x44-0x47 */
+	0xE8, 0xBE, 0xC9, 0xBC, 0x96, 0x68, 0x96, 0x69, /* 0x48-0x4B */
+	0xE8, 0xBB, 0x96, 0x6A, 0xC0, 0xEE, 0xD0, 0xD3, /* 0x4C-0x4F */
+	0xB2, 0xC4, 0xB4, 0xE5, 0x96, 0x6B, 0xE8, 0xBC, /* 0x50-0x53 */
+	0x96, 0x6C, 0x96, 0x6D, 0xD5, 0xC8, 0x96, 0x6E, /* 0x54-0x57 */
+	0x96, 0x6F, 0x96, 0x70, 0x96, 0x71, 0x96, 0x72, /* 0x58-0x5B */
+	0xB6, 0xC5, 0x96, 0x73, 0xE8, 0xBD, 0xCA, 0xF8, /* 0x5C-0x5F */
+	0xB8, 0xDC, 0xCC, 0xF5, 0x96, 0x74, 0x96, 0x75, /* 0x60-0x63 */
+	0x96, 0x76, 0xC0, 0xB4, 0x96, 0x77, 0x96, 0x78, /* 0x64-0x67 */
+	0xD1, 0xEE, 0xE8, 0xBF, 0xE8, 0xC2, 0x96, 0x79, /* 0x68-0x6B */
+	0x96, 0x7A, 0xBA, 0xBC, 0x96, 0x7B, 0xB1, 0xAD, /* 0x6C-0x6F */
+	0xBD, 0xDC, 0x96, 0x7C, 0xEA, 0xBD, 0xE8, 0xC3, /* 0x70-0x73 */
+	0x96, 0x7D, 0xE8, 0xC6, 0x96, 0x7E, 0xE8, 0xCB, /* 0x74-0x77 */
+	0x96, 0x80, 0x96, 0x81, 0x96, 0x82, 0x96, 0x83, /* 0x78-0x7B */
+	0xE8, 0xCC, 0x96, 0x84, 0xCB, 0xC9, 0xB0, 0xE5, /* 0x7C-0x7F */
+	
+	0x96, 0x85, 0xBC, 0xAB, 0x96, 0x86, 0x96, 0x87, /* 0x80-0x83 */
+	0xB9, 0xB9, 0x96, 0x88, 0x96, 0x89, 0xE8, 0xC1, /* 0x84-0x87 */
+	0x96, 0x8A, 0xCD, 0xF7, 0x96, 0x8B, 0xE8, 0xCA, /* 0x88-0x8B */
+	0x96, 0x8C, 0x96, 0x8D, 0x96, 0x8E, 0x96, 0x8F, /* 0x8C-0x8F */
+	0xCE, 0xF6, 0x96, 0x90, 0x96, 0x91, 0x96, 0x92, /* 0x90-0x93 */
+	0x96, 0x93, 0xD5, 0xED, 0x96, 0x94, 0xC1, 0xD6, /* 0x94-0x97 */
+	0xE8, 0xC4, 0x96, 0x95, 0xC3, 0xB6, 0x96, 0x96, /* 0x98-0x9B */
+	0xB9, 0xFB, 0xD6, 0xA6, 0xE8, 0xC8, 0x96, 0x97, /* 0x9C-0x9F */
+	0x96, 0x98, 0x96, 0x99, 0xCA, 0xE0, 0xD4, 0xE6, /* 0xA0-0xA3 */
+	0x96, 0x9A, 0xE8, 0xC0, 0x96, 0x9B, 0xE8, 0xC5, /* 0xA4-0xA7 */
+	0xE8, 0xC7, 0x96, 0x9C, 0xC7, 0xB9, 0xB7, 0xE3, /* 0xA8-0xAB */
+	0x96, 0x9D, 0xE8, 0xC9, 0x96, 0x9E, 0xBF, 0xDD, /* 0xAC-0xAF */
+	0xE8, 0xD2, 0x96, 0x9F, 0x96, 0xA0, 0xE8, 0xD7, /* 0xB0-0xB3 */
+	0x96, 0xA1, 0xE8, 0xD5, 0xBC, 0xDC, 0xBC, 0xCF, /* 0xB4-0xB7 */
+	0xE8, 0xDB, 0x96, 0xA2, 0x96, 0xA3, 0x96, 0xA4, /* 0xB8-0xBB */
+	0x96, 0xA5, 0x96, 0xA6, 0x96, 0xA7, 0x96, 0xA8, /* 0xBC-0xBF */
+	0x96, 0xA9, 0xE8, 0xDE, 0x96, 0xAA, 0xE8, 0xDA, /* 0xC0-0xC3 */
+	0xB1, 0xFA, 0x96, 0xAB, 0x96, 0xAC, 0x96, 0xAD, /* 0xC4-0xC7 */
+	0x96, 0xAE, 0x96, 0xAF, 0x96, 0xB0, 0x96, 0xB1, /* 0xC8-0xCB */
+	0x96, 0xB2, 0x96, 0xB3, 0x96, 0xB4, 0xB0, 0xD8, /* 0xCC-0xCF */
+	0xC4, 0xB3, 0xB8, 0xCC, 0xC6, 0xE2, 0xC8, 0xBE, /* 0xD0-0xD3 */
+	0xC8, 0xE1, 0x96, 0xB5, 0x96, 0xB6, 0x96, 0xB7, /* 0xD4-0xD7 */
+	0xE8, 0xCF, 0xE8, 0xD4, 0xE8, 0xD6, 0x96, 0xB8, /* 0xD8-0xDB */
+	0xB9, 0xF1, 0xE8, 0xD8, 0xD7, 0xF5, 0x96, 0xB9, /* 0xDC-0xDF */
+	0xC4, 0xFB, 0x96, 0xBA, 0xE8, 0xDC, 0x96, 0xBB, /* 0xE0-0xE3 */
+	0x96, 0xBC, 0xB2, 0xE9, 0x96, 0xBD, 0x96, 0xBE, /* 0xE4-0xE7 */
+	0x96, 0xBF, 0xE8, 0xD1, 0x96, 0xC0, 0x96, 0xC1, /* 0xE8-0xEB */
+	0xBC, 0xED, 0x96, 0xC2, 0x96, 0xC3, 0xBF, 0xC2, /* 0xEC-0xEF */
+	0xE8, 0xCD, 0xD6, 0xF9, 0x96, 0xC4, 0xC1, 0xF8, /* 0xF0-0xF3 */
+	0xB2, 0xF1, 0x96, 0xC5, 0x96, 0xC6, 0x96, 0xC7, /* 0xF4-0xF7 */
+	0x96, 0xC8, 0x96, 0xC9, 0x96, 0xCA, 0x96, 0xCB, /* 0xF8-0xFB */
+	0x96, 0xCC, 0xE8, 0xDF, 0x96, 0xCD, 0xCA, 0xC1, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_68[512] = {
+	0xE8, 0xD9, 0x96, 0xCE, 0x96, 0xCF, 0x96, 0xD0, /* 0x00-0x03 */
+	0x96, 0xD1, 0xD5, 0xA4, 0x96, 0xD2, 0xB1, 0xEA, /* 0x04-0x07 */
+	0xD5, 0xBB, 0xE8, 0xCE, 0xE8, 0xD0, 0xB6, 0xB0, /* 0x08-0x0B */
+	0xE8, 0xD3, 0x96, 0xD3, 0xE8, 0xDD, 0xC0, 0xB8, /* 0x0C-0x0F */
+	0x96, 0xD4, 0xCA, 0xF7, 0x96, 0xD5, 0xCB, 0xA8, /* 0x10-0x13 */
+	0x96, 0xD6, 0x96, 0xD7, 0xC6, 0xDC, 0xC0, 0xF5, /* 0x14-0x17 */
+	0x96, 0xD8, 0x96, 0xD9, 0x96, 0xDA, 0x96, 0xDB, /* 0x18-0x1B */
+	0x96, 0xDC, 0xE8, 0xE9, 0x96, 0xDD, 0x96, 0xDE, /* 0x1C-0x1F */
+	0x96, 0xDF, 0xD0, 0xA3, 0x96, 0xE0, 0x96, 0xE1, /* 0x20-0x23 */
+	0x96, 0xE2, 0x96, 0xE3, 0x96, 0xE4, 0x96, 0xE5, /* 0x24-0x27 */
+	0x96, 0xE6, 0xE8, 0xF2, 0xD6, 0xEA, 0x96, 0xE7, /* 0x28-0x2B */
+	0x96, 0xE8, 0x96, 0xE9, 0x96, 0xEA, 0x96, 0xEB, /* 0x2C-0x2F */
+	0x96, 0xEC, 0x96, 0xED, 0xE8, 0xE0, 0xE8, 0xE1, /* 0x30-0x33 */
+	0x96, 0xEE, 0x96, 0xEF, 0x96, 0xF0, 0xD1, 0xF9, /* 0x34-0x37 */
+	0xBA, 0xCB, 0xB8, 0xF9, 0x96, 0xF1, 0x96, 0xF2, /* 0x38-0x3B */
+	0xB8, 0xF1, 0xD4, 0xD4, 0xE8, 0xEF, 0x96, 0xF3, /* 0x3C-0x3F */
+	0xE8, 0xEE, 0xE8, 0xEC, 0xB9, 0xF0, 0xCC, 0xD2, /* 0x40-0x43 */
+	0xE8, 0xE6, 0xCE, 0xA6, 0xBF, 0xF2, 0x96, 0xF4, /* 0x44-0x47 */
+	0xB0, 0xB8, 0xE8, 0xF1, 0xE8, 0xF0, 0x96, 0xF5, /* 0x48-0x4B */
+	0xD7, 0xC0, 0x96, 0xF6, 0xE8, 0xE4, 0x96, 0xF7, /* 0x4C-0x4F */
+	0xCD, 0xA9, 0xC9, 0xA3, 0x96, 0xF8, 0xBB, 0xB8, /* 0x50-0x53 */
+	0xBD, 0xDB, 0xE8, 0xEA, 0x96, 0xF9, 0x96, 0xFA, /* 0x54-0x57 */
+	0x96, 0xFB, 0x96, 0xFC, 0x96, 0xFD, 0x96, 0xFE, /* 0x58-0x5B */
+	0x97, 0x40, 0x97, 0x41, 0x97, 0x42, 0x97, 0x43, /* 0x5C-0x5F */
+	0xE8, 0xE2, 0xE8, 0xE3, 0xE8, 0xE5, 0xB5, 0xB5, /* 0x60-0x63 */
+	0xE8, 0xE7, 0xC7, 0xC5, 0xE8, 0xEB, 0xE8, 0xED, /* 0x64-0x67 */
+	0xBD, 0xB0, 0xD7, 0xAE, 0x97, 0x44, 0xE8, 0xF8, /* 0x68-0x6B */
+	0x97, 0x45, 0x97, 0x46, 0x97, 0x47, 0x97, 0x48, /* 0x6C-0x6F */
+	0x97, 0x49, 0x97, 0x4A, 0x97, 0x4B, 0x97, 0x4C, /* 0x70-0x73 */
+	0xE8, 0xF5, 0x97, 0x4D, 0xCD, 0xB0, 0xE8, 0xF6, /* 0x74-0x77 */
+	0x97, 0x4E, 0x97, 0x4F, 0x97, 0x50, 0x97, 0x51, /* 0x78-0x7B */
+	0x97, 0x52, 0x97, 0x53, 0x97, 0x54, 0x97, 0x55, /* 0x7C-0x7F */
+	
+	0x97, 0x56, 0xC1, 0xBA, 0x97, 0x57, 0xE8, 0xE8, /* 0x80-0x83 */
+	0x97, 0x58, 0xC3, 0xB7, 0xB0, 0xF0, 0x97, 0x59, /* 0x84-0x87 */
+	0x97, 0x5A, 0x97, 0x5B, 0x97, 0x5C, 0x97, 0x5D, /* 0x88-0x8B */
+	0x97, 0x5E, 0x97, 0x5F, 0x97, 0x60, 0xE8, 0xF4, /* 0x8C-0x8F */
+	0x97, 0x61, 0x97, 0x62, 0x97, 0x63, 0xE8, 0xF7, /* 0x90-0x93 */
+	0x97, 0x64, 0x97, 0x65, 0x97, 0x66, 0xB9, 0xA3, /* 0x94-0x97 */
+	0x97, 0x67, 0x97, 0x68, 0x97, 0x69, 0x97, 0x6A, /* 0x98-0x9B */
+	0x97, 0x6B, 0x97, 0x6C, 0x97, 0x6D, 0x97, 0x6E, /* 0x9C-0x9F */
+	0x97, 0x6F, 0x97, 0x70, 0xC9, 0xD2, 0x97, 0x71, /* 0xA0-0xA3 */
+	0x97, 0x72, 0x97, 0x73, 0xC3, 0xCE, 0xCE, 0xE0, /* 0xA4-0xA7 */
+	0xC0, 0xE6, 0x97, 0x74, 0x97, 0x75, 0x97, 0x76, /* 0xA8-0xAB */
+	0x97, 0x77, 0xCB, 0xF3, 0x97, 0x78, 0xCC, 0xDD, /* 0xAC-0xAF */
+	0xD0, 0xB5, 0x97, 0x79, 0x97, 0x7A, 0xCA, 0xE1, /* 0xB0-0xB3 */
+	0x97, 0x7B, 0xE8, 0xF3, 0x97, 0x7C, 0x97, 0x7D, /* 0xB4-0xB7 */
+	0x97, 0x7E, 0x97, 0x80, 0x97, 0x81, 0x97, 0x82, /* 0xB8-0xBB */
+	0x97, 0x83, 0x97, 0x84, 0x97, 0x85, 0x97, 0x86, /* 0xBC-0xBF */
+	0xBC, 0xEC, 0x97, 0x87, 0xE8, 0xF9, 0x97, 0x88, /* 0xC0-0xC3 */
+	0x97, 0x89, 0x97, 0x8A, 0x97, 0x8B, 0x97, 0x8C, /* 0xC4-0xC7 */
+	0x97, 0x8D, 0xC3, 0xDE, 0x97, 0x8E, 0xC6, 0xE5, /* 0xC8-0xCB */
+	0x97, 0x8F, 0xB9, 0xF7, 0x97, 0x90, 0x97, 0x91, /* 0xCC-0xCF */
+	0x97, 0x92, 0x97, 0x93, 0xB0, 0xF4, 0x97, 0x94, /* 0xD0-0xD3 */
+	0x97, 0x95, 0xD7, 0xD8, 0x97, 0x96, 0x97, 0x97, /* 0xD4-0xD7 */
+	0xBC, 0xAC, 0x97, 0x98, 0xC5, 0xEF, 0x97, 0x99, /* 0xD8-0xDB */
+	0x97, 0x9A, 0x97, 0x9B, 0x97, 0x9C, 0x97, 0x9D, /* 0xDC-0xDF */
+	0xCC, 0xC4, 0x97, 0x9E, 0x97, 0x9F, 0xE9, 0xA6, /* 0xE0-0xE3 */
+	0x97, 0xA0, 0x97, 0xA1, 0x97, 0xA2, 0x97, 0xA3, /* 0xE4-0xE7 */
+	0x97, 0xA4, 0x97, 0xA5, 0x97, 0xA6, 0x97, 0xA7, /* 0xE8-0xEB */
+	0x97, 0xA8, 0x97, 0xA9, 0xC9, 0xAD, 0x97, 0xAA, /* 0xEC-0xEF */
+	0xE9, 0xA2, 0xC0, 0xE2, 0x97, 0xAB, 0x97, 0xAC, /* 0xF0-0xF3 */
+	0x97, 0xAD, 0xBF, 0xC3, 0x97, 0xAE, 0x97, 0xAF, /* 0xF4-0xF7 */
+	0x97, 0xB0, 0xE8, 0xFE, 0xB9, 0xD7, 0x97, 0xB1, /* 0xF8-0xFB */
+	0xE8, 0xFB, 0x97, 0xB2, 0x97, 0xB3, 0x97, 0xB4, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_69[512] = {
+	0x97, 0xB5, 0xE9, 0xA4, 0x97, 0xB6, 0x97, 0xB7, /* 0x00-0x03 */
+	0x97, 0xB8, 0xD2, 0xCE, 0x97, 0xB9, 0x97, 0xBA, /* 0x04-0x07 */
+	0x97, 0xBB, 0x97, 0xBC, 0x97, 0xBD, 0xE9, 0xA3, /* 0x08-0x0B */
+	0x97, 0xBE, 0xD6, 0xB2, 0xD7, 0xB5, 0x97, 0xBF, /* 0x0C-0x0F */
+	0xE9, 0xA7, 0x97, 0xC0, 0xBD, 0xB7, 0x97, 0xC1, /* 0x10-0x13 */
+	0x97, 0xC2, 0x97, 0xC3, 0x97, 0xC4, 0x97, 0xC5, /* 0x14-0x17 */
+	0x97, 0xC6, 0x97, 0xC7, 0x97, 0xC8, 0x97, 0xC9, /* 0x18-0x1B */
+	0x97, 0xCA, 0x97, 0xCB, 0x97, 0xCC, 0xE8, 0xFC, /* 0x1C-0x1F */
+	0xE8, 0xFD, 0x97, 0xCD, 0x97, 0xCE, 0x97, 0xCF, /* 0x20-0x23 */
+	0xE9, 0xA1, 0x97, 0xD0, 0x97, 0xD1, 0x97, 0xD2, /* 0x24-0x27 */
+	0x97, 0xD3, 0x97, 0xD4, 0x97, 0xD5, 0x97, 0xD6, /* 0x28-0x2B */
+	0x97, 0xD7, 0xCD, 0xD6, 0x97, 0xD8, 0x97, 0xD9, /* 0x2C-0x2F */
+	0xD2, 0xAC, 0x97, 0xDA, 0x97, 0xDB, 0x97, 0xDC, /* 0x30-0x33 */
+	0xE9, 0xB2, 0x97, 0xDD, 0x97, 0xDE, 0x97, 0xDF, /* 0x34-0x37 */
+	0x97, 0xE0, 0xE9, 0xA9, 0x97, 0xE1, 0x97, 0xE2, /* 0x38-0x3B */
+	0x97, 0xE3, 0xB4, 0xAA, 0x97, 0xE4, 0xB4, 0xBB, /* 0x3C-0x3F */
+	0x97, 0xE5, 0x97, 0xE6, 0xE9, 0xAB, 0x97, 0xE7, /* 0x40-0x43 */
+	0x97, 0xE8, 0x97, 0xE9, 0x97, 0xEA, 0x97, 0xEB, /* 0x44-0x47 */
+	0x97, 0xEC, 0x97, 0xED, 0x97, 0xEE, 0x97, 0xEF, /* 0x48-0x4B */
+	0x97, 0xF0, 0x97, 0xF1, 0x97, 0xF2, 0x97, 0xF3, /* 0x4C-0x4F */
+	0x97, 0xF4, 0x97, 0xF5, 0x97, 0xF6, 0x97, 0xF7, /* 0x50-0x53 */
+	0xD0, 0xA8, 0x97, 0xF8, 0x97, 0xF9, 0xE9, 0xA5, /* 0x54-0x57 */
+	0x97, 0xFA, 0x97, 0xFB, 0xB3, 0xFE, 0x97, 0xFC, /* 0x58-0x5B */
+	0x97, 0xFD, 0xE9, 0xAC, 0xC0, 0xE3, 0x97, 0xFE, /* 0x5C-0x5F */
+	0xE9, 0xAA, 0x98, 0x40, 0x98, 0x41, 0xE9, 0xB9, /* 0x60-0x63 */
+	0x98, 0x42, 0x98, 0x43, 0xE9, 0xB8, 0x98, 0x44, /* 0x64-0x67 */
+	0x98, 0x45, 0x98, 0x46, 0x98, 0x47, 0xE9, 0xAE, /* 0x68-0x6B */
+	0x98, 0x48, 0x98, 0x49, 0xE8, 0xFA, 0x98, 0x4A, /* 0x6C-0x6F */
+	0x98, 0x4B, 0xE9, 0xA8, 0x98, 0x4C, 0x98, 0x4D, /* 0x70-0x73 */
+	0x98, 0x4E, 0x98, 0x4F, 0x98, 0x50, 0xBF, 0xAC, /* 0x74-0x77 */
+	0xE9, 0xB1, 0xE9, 0xBA, 0x98, 0x51, 0x98, 0x52, /* 0x78-0x7B */
+	0xC2, 0xA5, 0x98, 0x53, 0x98, 0x54, 0x98, 0x55, /* 0x7C-0x7F */
+	
+	0xE9, 0xAF, 0x98, 0x56, 0xB8, 0xC5, 0x98, 0x57, /* 0x80-0x83 */
+	0xE9, 0xAD, 0x98, 0x58, 0xD3, 0xDC, 0xE9, 0xB4, /* 0x84-0x87 */
+	0xE9, 0xB5, 0xE9, 0xB7, 0x98, 0x59, 0x98, 0x5A, /* 0x88-0x8B */
+	0x98, 0x5B, 0xE9, 0xC7, 0x98, 0x5C, 0x98, 0x5D, /* 0x8C-0x8F */
+	0x98, 0x5E, 0x98, 0x5F, 0x98, 0x60, 0x98, 0x61, /* 0x90-0x93 */
+	0xC0, 0xC6, 0xE9, 0xC5, 0x98, 0x62, 0x98, 0x63, /* 0x94-0x97 */
+	0xE9, 0xB0, 0x98, 0x64, 0x98, 0x65, 0xE9, 0xBB, /* 0x98-0x9B */
+	0xB0, 0xF1, 0x98, 0x66, 0x98, 0x67, 0x98, 0x68, /* 0x9C-0x9F */
+	0x98, 0x69, 0x98, 0x6A, 0x98, 0x6B, 0x98, 0x6C, /* 0xA0-0xA3 */
+	0x98, 0x6D, 0x98, 0x6E, 0x98, 0x6F, 0xE9, 0xBC, /* 0xA4-0xA7 */
+	0xD5, 0xA5, 0x98, 0x70, 0x98, 0x71, 0xE9, 0xBE, /* 0xA8-0xAB */
+	0x98, 0x72, 0xE9, 0xBF, 0x98, 0x73, 0x98, 0x74, /* 0xAC-0xAF */
+	0x98, 0x75, 0xE9, 0xC1, 0x98, 0x76, 0x98, 0x77, /* 0xB0-0xB3 */
+	0xC1, 0xF1, 0x98, 0x78, 0x98, 0x79, 0xC8, 0xB6, /* 0xB4-0xB7 */
+	0x98, 0x7A, 0x98, 0x7B, 0x98, 0x7C, 0xE9, 0xBD, /* 0xB8-0xBB */
+	0x98, 0x7D, 0x98, 0x7E, 0x98, 0x80, 0x98, 0x81, /* 0xBC-0xBF */
+	0x98, 0x82, 0xE9, 0xC2, 0x98, 0x83, 0x98, 0x84, /* 0xC0-0xC3 */
+	0x98, 0x85, 0x98, 0x86, 0x98, 0x87, 0x98, 0x88, /* 0xC4-0xC7 */
+	0x98, 0x89, 0x98, 0x8A, 0xE9, 0xC3, 0x98, 0x8B, /* 0xC8-0xCB */
+	0xE9, 0xB3, 0x98, 0x8C, 0xE9, 0xB6, 0x98, 0x8D, /* 0xCC-0xCF */
+	0xBB, 0xB1, 0x98, 0x8E, 0x98, 0x8F, 0x98, 0x90, /* 0xD0-0xD3 */
+	0xE9, 0xC0, 0x98, 0x91, 0x98, 0x92, 0x98, 0x93, /* 0xD4-0xD7 */
+	0x98, 0x94, 0x98, 0x95, 0x98, 0x96, 0xBC, 0xF7, /* 0xD8-0xDB */
+	0x98, 0x97, 0x98, 0x98, 0x98, 0x99, 0xE9, 0xC4, /* 0xDC-0xDF */
+	0xE9, 0xC6, 0x98, 0x9A, 0x98, 0x9B, 0x98, 0x9C, /* 0xE0-0xE3 */
+	0x98, 0x9D, 0x98, 0x9E, 0x98, 0x9F, 0x98, 0xA0, /* 0xE4-0xE7 */
+	0x98, 0xA1, 0x98, 0xA2, 0x98, 0xA3, 0x98, 0xA4, /* 0xE8-0xEB */
+	0x98, 0xA5, 0xE9, 0xCA, 0x98, 0xA6, 0x98, 0xA7, /* 0xEC-0xEF */
+	0x98, 0xA8, 0x98, 0xA9, 0xE9, 0xCE, 0x98, 0xAA, /* 0xF0-0xF3 */
+	0x98, 0xAB, 0x98, 0xAC, 0x98, 0xAD, 0x98, 0xAE, /* 0xF4-0xF7 */
+	0x98, 0xAF, 0x98, 0xB0, 0x98, 0xB1, 0x98, 0xB2, /* 0xF8-0xFB */
+	0x98, 0xB3, 0xB2, 0xDB, 0x98, 0xB4, 0xE9, 0xC8, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_6A[512] = {
+	0x98, 0xB5, 0x98, 0xB6, 0x98, 0xB7, 0x98, 0xB8, /* 0x00-0x03 */
+	0x98, 0xB9, 0x98, 0xBA, 0x98, 0xBB, 0x98, 0xBC, /* 0x04-0x07 */
+	0x98, 0xBD, 0x98, 0xBE, 0xB7, 0xAE, 0x98, 0xBF, /* 0x08-0x0B */
+	0x98, 0xC0, 0x98, 0xC1, 0x98, 0xC2, 0x98, 0xC3, /* 0x0C-0x0F */
+	0x98, 0xC4, 0x98, 0xC5, 0x98, 0xC6, 0x98, 0xC7, /* 0x10-0x13 */
+	0x98, 0xC8, 0x98, 0xC9, 0x98, 0xCA, 0xE9, 0xCB, /* 0x14-0x17 */
+	0xE9, 0xCC, 0x98, 0xCB, 0x98, 0xCC, 0x98, 0xCD, /* 0x18-0x1B */
+	0x98, 0xCE, 0x98, 0xCF, 0x98, 0xD0, 0xD5, 0xC1, /* 0x1C-0x1F */
+	0x98, 0xD1, 0xC4, 0xA3, 0x98, 0xD2, 0x98, 0xD3, /* 0x20-0x23 */
+	0x98, 0xD4, 0x98, 0xD5, 0x98, 0xD6, 0x98, 0xD7, /* 0x24-0x27 */
+	0xE9, 0xD8, 0x98, 0xD8, 0xBA, 0xE1, 0x98, 0xD9, /* 0x28-0x2B */
+	0x98, 0xDA, 0x98, 0xDB, 0x98, 0xDC, 0xE9, 0xC9, /* 0x2C-0x2F */
+	0x98, 0xDD, 0xD3, 0xA3, 0x98, 0xDE, 0x98, 0xDF, /* 0x30-0x33 */
+	0x98, 0xE0, 0xE9, 0xD4, 0x98, 0xE1, 0x98, 0xE2, /* 0x34-0x37 */
+	0x98, 0xE3, 0x98, 0xE4, 0x98, 0xE5, 0x98, 0xE6, /* 0x38-0x3B */
+	0x98, 0xE7, 0xE9, 0xD7, 0xE9, 0xD0, 0x98, 0xE8, /* 0x3C-0x3F */
+	0x98, 0xE9, 0x98, 0xEA, 0x98, 0xEB, 0x98, 0xEC, /* 0x40-0x43 */
+	0xE9, 0xCF, 0x98, 0xED, 0x98, 0xEE, 0xC7, 0xC1, /* 0x44-0x47 */
+	0x98, 0xEF, 0x98, 0xF0, 0x98, 0xF1, 0x98, 0xF2, /* 0x48-0x4B */
+	0x98, 0xF3, 0x98, 0xF4, 0x98, 0xF5, 0x98, 0xF6, /* 0x4C-0x4F */
+	0xE9, 0xD2, 0x98, 0xF7, 0x98, 0xF8, 0x98, 0xF9, /* 0x50-0x53 */
+	0x98, 0xFA, 0x98, 0xFB, 0x98, 0xFC, 0x98, 0xFD, /* 0x54-0x57 */
+	0xE9, 0xD9, 0xB3, 0xC8, 0x98, 0xFE, 0xE9, 0xD3, /* 0x58-0x5B */
+	0x99, 0x40, 0x99, 0x41, 0x99, 0x42, 0x99, 0x43, /* 0x5C-0x5F */
+	0x99, 0x44, 0xCF, 0xF0, 0x99, 0x45, 0x99, 0x46, /* 0x60-0x63 */
+	0x99, 0x47, 0xE9, 0xCD, 0x99, 0x48, 0x99, 0x49, /* 0x64-0x67 */
+	0x99, 0x4A, 0x99, 0x4B, 0x99, 0x4C, 0x99, 0x4D, /* 0x68-0x6B */
+	0x99, 0x4E, 0x99, 0x4F, 0x99, 0x50, 0x99, 0x51, /* 0x6C-0x6F */
+	0x99, 0x52, 0xB3, 0xF7, 0x99, 0x53, 0x99, 0x54, /* 0x70-0x73 */
+	0x99, 0x55, 0x99, 0x56, 0x99, 0x57, 0x99, 0x58, /* 0x74-0x77 */
+	0x99, 0x59, 0xE9, 0xD6, 0x99, 0x5A, 0x99, 0x5B, /* 0x78-0x7B */
+	0xE9, 0xDA, 0x99, 0x5C, 0x99, 0x5D, 0x99, 0x5E, /* 0x7C-0x7F */
+	
+	0xCC, 0xB4, 0x99, 0x5F, 0x99, 0x60, 0x99, 0x61, /* 0x80-0x83 */
+	0xCF, 0xAD, 0x99, 0x62, 0x99, 0x63, 0x99, 0x64, /* 0x84-0x87 */
+	0x99, 0x65, 0x99, 0x66, 0x99, 0x67, 0x99, 0x68, /* 0x88-0x8B */
+	0x99, 0x69, 0x99, 0x6A, 0xE9, 0xD5, 0x99, 0x6B, /* 0x8C-0x8F */
+	0xE9, 0xDC, 0xE9, 0xDB, 0x99, 0x6C, 0x99, 0x6D, /* 0x90-0x93 */
+	0x99, 0x6E, 0x99, 0x6F, 0x99, 0x70, 0xE9, 0xDE, /* 0x94-0x97 */
+	0x99, 0x71, 0x99, 0x72, 0x99, 0x73, 0x99, 0x74, /* 0x98-0x9B */
+	0x99, 0x75, 0x99, 0x76, 0x99, 0x77, 0x99, 0x78, /* 0x9C-0x9F */
+	0xE9, 0xD1, 0x99, 0x79, 0x99, 0x7A, 0x99, 0x7B, /* 0xA0-0xA3 */
+	0x99, 0x7C, 0x99, 0x7D, 0x99, 0x7E, 0x99, 0x80, /* 0xA4-0xA7 */
+	0x99, 0x81, 0xE9, 0xDD, 0x99, 0x82, 0xE9, 0xDF, /* 0xA8-0xAB */
+	0xC3, 0xCA, 0x99, 0x83, 0x99, 0x84, 0x99, 0x85, /* 0xAC-0xAF */
+	0x99, 0x86, 0x99, 0x87, 0x99, 0x88, 0x99, 0x89, /* 0xB0-0xB3 */
+	0x99, 0x8A, 0x99, 0x8B, 0x99, 0x8C, 0x99, 0x8D, /* 0xB4-0xB7 */
+	0x99, 0x8E, 0x99, 0x8F, 0x99, 0x90, 0x99, 0x91, /* 0xB8-0xBB */
+	0x99, 0x92, 0x99, 0x93, 0x99, 0x94, 0x99, 0x95, /* 0xBC-0xBF */
+	0x99, 0x96, 0x99, 0x97, 0x99, 0x98, 0x99, 0x99, /* 0xC0-0xC3 */
+	0x99, 0x9A, 0x99, 0x9B, 0x99, 0x9C, 0x99, 0x9D, /* 0xC4-0xC7 */
+	0x99, 0x9E, 0x99, 0x9F, 0x99, 0xA0, 0x99, 0xA1, /* 0xC8-0xCB */
+	0x99, 0xA2, 0x99, 0xA3, 0x99, 0xA4, 0x99, 0xA5, /* 0xCC-0xCF */
+	0x99, 0xA6, 0x99, 0xA7, 0x99, 0xA8, 0x99, 0xA9, /* 0xD0-0xD3 */
+	0x99, 0xAA, 0x99, 0xAB, 0x99, 0xAC, 0x99, 0xAD, /* 0xD4-0xD7 */
+	0x99, 0xAE, 0x99, 0xAF, 0x99, 0xB0, 0x99, 0xB1, /* 0xD8-0xDB */
+	0x99, 0xB2, 0x99, 0xB3, 0x99, 0xB4, 0x99, 0xB5, /* 0xDC-0xDF */
+	0x99, 0xB6, 0x99, 0xB7, 0x99, 0xB8, 0x99, 0xB9, /* 0xE0-0xE3 */
+	0x99, 0xBA, 0x99, 0xBB, 0x99, 0xBC, 0x99, 0xBD, /* 0xE4-0xE7 */
+	0x99, 0xBE, 0x99, 0xBF, 0x99, 0xC0, 0x99, 0xC1, /* 0xE8-0xEB */
+	0x99, 0xC2, 0x99, 0xC3, 0x99, 0xC4, 0x99, 0xC5, /* 0xEC-0xEF */
+	0x99, 0xC6, 0x99, 0xC7, 0x99, 0xC8, 0x99, 0xC9, /* 0xF0-0xF3 */
+	0x99, 0xCA, 0x99, 0xCB, 0x99, 0xCC, 0x99, 0xCD, /* 0xF4-0xF7 */
+	0x99, 0xCE, 0x99, 0xCF, 0x99, 0xD0, 0x99, 0xD1, /* 0xF8-0xFB */
+	0x99, 0xD2, 0x99, 0xD3, 0x99, 0xD4, 0x99, 0xD5, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_6B[512] = {
+	0x99, 0xD6, 0x99, 0xD7, 0x99, 0xD8, 0x99, 0xD9, /* 0x00-0x03 */
+	0x99, 0xDA, 0x99, 0xDB, 0x99, 0xDC, 0x99, 0xDD, /* 0x04-0x07 */
+	0x99, 0xDE, 0x99, 0xDF, 0x99, 0xE0, 0x99, 0xE1, /* 0x08-0x0B */
+	0x99, 0xE2, 0x99, 0xE3, 0x99, 0xE4, 0x99, 0xE5, /* 0x0C-0x0F */
+	0x99, 0xE6, 0x99, 0xE7, 0x99, 0xE8, 0x99, 0xE9, /* 0x10-0x13 */
+	0x99, 0xEA, 0x99, 0xEB, 0x99, 0xEC, 0x99, 0xED, /* 0x14-0x17 */
+	0x99, 0xEE, 0x99, 0xEF, 0x99, 0xF0, 0x99, 0xF1, /* 0x18-0x1B */
+	0x99, 0xF2, 0x99, 0xF3, 0x99, 0xF4, 0x99, 0xF5, /* 0x1C-0x1F */
+	0xC7, 0xB7, 0xB4, 0xCE, 0xBB, 0xB6, 0xD0, 0xC0, /* 0x20-0x23 */
+	0xEC, 0xA3, 0x99, 0xF6, 0x99, 0xF7, 0xC5, 0xB7, /* 0x24-0x27 */
+	0x99, 0xF8, 0x99, 0xF9, 0x99, 0xFA, 0x99, 0xFB, /* 0x28-0x2B */
+	0x99, 0xFC, 0x99, 0xFD, 0x99, 0xFE, 0x9A, 0x40, /* 0x2C-0x2F */
+	0x9A, 0x41, 0x9A, 0x42, 0xD3, 0xFB, 0x9A, 0x43, /* 0x30-0x33 */
+	0x9A, 0x44, 0x9A, 0x45, 0x9A, 0x46, 0xEC, 0xA4, /* 0x34-0x37 */
+	0x9A, 0x47, 0xEC, 0xA5, 0xC6, 0xDB, 0x9A, 0x48, /* 0x38-0x3B */
+	0x9A, 0x49, 0x9A, 0x4A, 0xBF, 0xEE, 0x9A, 0x4B, /* 0x3C-0x3F */
+	0x9A, 0x4C, 0x9A, 0x4D, 0x9A, 0x4E, 0xEC, 0xA6, /* 0x40-0x43 */
+	0x9A, 0x4F, 0x9A, 0x50, 0xEC, 0xA7, 0xD0, 0xAA, /* 0x44-0x47 */
+	0x9A, 0x51, 0xC7, 0xB8, 0x9A, 0x52, 0x9A, 0x53, /* 0x48-0x4B */
+	0xB8, 0xE8, 0x9A, 0x54, 0x9A, 0x55, 0x9A, 0x56, /* 0x4C-0x4F */
+	0x9A, 0x57, 0x9A, 0x58, 0x9A, 0x59, 0x9A, 0x5A, /* 0x50-0x53 */
+	0x9A, 0x5B, 0x9A, 0x5C, 0x9A, 0x5D, 0x9A, 0x5E, /* 0x54-0x57 */
+	0x9A, 0x5F, 0xEC, 0xA8, 0x9A, 0x60, 0x9A, 0x61, /* 0x58-0x5B */
+	0x9A, 0x62, 0x9A, 0x63, 0x9A, 0x64, 0x9A, 0x65, /* 0x5C-0x5F */
+	0x9A, 0x66, 0x9A, 0x67, 0xD6, 0xB9, 0xD5, 0xFD, /* 0x60-0x63 */
+	0xB4, 0xCB, 0xB2, 0xBD, 0xCE, 0xE4, 0xC6, 0xE7, /* 0x64-0x67 */
+	0x9A, 0x68, 0x9A, 0x69, 0xCD, 0xE1, 0x9A, 0x6A, /* 0x68-0x6B */
+	0x9A, 0x6B, 0x9A, 0x6C, 0x9A, 0x6D, 0x9A, 0x6E, /* 0x6C-0x6F */
+	0x9A, 0x6F, 0x9A, 0x70, 0x9A, 0x71, 0x9A, 0x72, /* 0x70-0x73 */
+	0x9A, 0x73, 0x9A, 0x74, 0x9A, 0x75, 0x9A, 0x76, /* 0x74-0x77 */
+	0x9A, 0x77, 0xB4, 0xF5, 0x9A, 0x78, 0xCB, 0xC0, /* 0x78-0x7B */
+	0xBC, 0xDF, 0x9A, 0x79, 0x9A, 0x7A, 0x9A, 0x7B, /* 0x7C-0x7F */
+	
+	0x9A, 0x7C, 0xE9, 0xE2, 0xE9, 0xE3, 0xD1, 0xEA, /* 0x80-0x83 */
+	0xE9, 0xE5, 0x9A, 0x7D, 0xB4, 0xF9, 0xE9, 0xE4, /* 0x84-0x87 */
+	0x9A, 0x7E, 0xD1, 0xB3, 0xCA, 0xE2, 0xB2, 0xD0, /* 0x88-0x8B */
+	0x9A, 0x80, 0xE9, 0xE8, 0x9A, 0x81, 0x9A, 0x82, /* 0x8C-0x8F */
+	0x9A, 0x83, 0x9A, 0x84, 0xE9, 0xE6, 0xE9, 0xE7, /* 0x90-0x93 */
+	0x9A, 0x85, 0x9A, 0x86, 0xD6, 0xB3, 0x9A, 0x87, /* 0x94-0x97 */
+	0x9A, 0x88, 0x9A, 0x89, 0xE9, 0xE9, 0xE9, 0xEA, /* 0x98-0x9B */
+	0x9A, 0x8A, 0x9A, 0x8B, 0x9A, 0x8C, 0x9A, 0x8D, /* 0x9C-0x9F */
+	0x9A, 0x8E, 0xE9, 0xEB, 0x9A, 0x8F, 0x9A, 0x90, /* 0xA0-0xA3 */
+	0x9A, 0x91, 0x9A, 0x92, 0x9A, 0x93, 0x9A, 0x94, /* 0xA4-0xA7 */
+	0x9A, 0x95, 0x9A, 0x96, 0xE9, 0xEC, 0x9A, 0x97, /* 0xA8-0xAB */
+	0x9A, 0x98, 0x9A, 0x99, 0x9A, 0x9A, 0x9A, 0x9B, /* 0xAC-0xAF */
+	0x9A, 0x9C, 0x9A, 0x9D, 0x9A, 0x9E, 0xEC, 0xAF, /* 0xB0-0xB3 */
+	0xC5, 0xB9, 0xB6, 0xCE, 0x9A, 0x9F, 0xD2, 0xF3, /* 0xB4-0xB7 */
+	0x9A, 0xA0, 0x9A, 0xA1, 0x9A, 0xA2, 0x9A, 0xA3, /* 0xB8-0xBB */
+	0x9A, 0xA4, 0x9A, 0xA5, 0x9A, 0xA6, 0xB5, 0xEE, /* 0xBC-0xBF */
+	0x9A, 0xA7, 0xBB, 0xD9, 0xEC, 0xB1, 0x9A, 0xA8, /* 0xC0-0xC3 */
+	0x9A, 0xA9, 0xD2, 0xE3, 0x9A, 0xAA, 0x9A, 0xAB, /* 0xC4-0xC7 */
+	0x9A, 0xAC, 0x9A, 0xAD, 0x9A, 0xAE, 0xCE, 0xE3, /* 0xC8-0xCB */
+	0x9A, 0xAF, 0xC4, 0xB8, 0x9A, 0xB0, 0xC3, 0xBF, /* 0xCC-0xCF */
+	0x9A, 0xB1, 0x9A, 0xB2, 0xB6, 0xBE, 0xD8, 0xB9, /* 0xD0-0xD3 */
+	0xB1, 0xC8, 0xB1, 0xCF, 0xB1, 0xD1, 0xC5, 0xFE, /* 0xD4-0xD7 */
+	0x9A, 0xB3, 0xB1, 0xD0, 0x9A, 0xB4, 0xC3, 0xAB, /* 0xD8-0xDB */
+	0x9A, 0xB5, 0x9A, 0xB6, 0x9A, 0xB7, 0x9A, 0xB8, /* 0xDC-0xDF */
+	0x9A, 0xB9, 0xD5, 0xB1, 0x9A, 0xBA, 0x9A, 0xBB, /* 0xE0-0xE3 */
+	0x9A, 0xBC, 0x9A, 0xBD, 0x9A, 0xBE, 0x9A, 0xBF, /* 0xE4-0xE7 */
+	0x9A, 0xC0, 0x9A, 0xC1, 0xEB, 0xA4, 0xBA, 0xC1, /* 0xE8-0xEB */
+	0x9A, 0xC2, 0x9A, 0xC3, 0x9A, 0xC4, 0xCC, 0xBA, /* 0xEC-0xEF */
+	0x9A, 0xC5, 0x9A, 0xC6, 0x9A, 0xC7, 0xEB, 0xA5, /* 0xF0-0xF3 */
+	0x9A, 0xC8, 0xEB, 0xA7, 0x9A, 0xC9, 0x9A, 0xCA, /* 0xF4-0xF7 */
+	0x9A, 0xCB, 0xEB, 0xA8, 0x9A, 0xCC, 0x9A, 0xCD, /* 0xF8-0xFB */
+	0x9A, 0xCE, 0xEB, 0xA6, 0x9A, 0xCF, 0x9A, 0xD0, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_6C[512] = {
+	0x9A, 0xD1, 0x9A, 0xD2, 0x9A, 0xD3, 0x9A, 0xD4, /* 0x00-0x03 */
+	0x9A, 0xD5, 0xEB, 0xA9, 0xEB, 0xAB, 0xEB, 0xAA, /* 0x04-0x07 */
+	0x9A, 0xD6, 0x9A, 0xD7, 0x9A, 0xD8, 0x9A, 0xD9, /* 0x08-0x0B */
+	0x9A, 0xDA, 0xEB, 0xAC, 0x9A, 0xDB, 0xCA, 0xCF, /* 0x0C-0x0F */
+	0xD8, 0xB5, 0xC3, 0xF1, 0x9A, 0xDC, 0xC3, 0xA5, /* 0x10-0x13 */
+	0xC6, 0xF8, 0xEB, 0xAD, 0xC4, 0xCA, 0x9A, 0xDD, /* 0x14-0x17 */
+	0xEB, 0xAE, 0xEB, 0xAF, 0xEB, 0xB0, 0xB7, 0xD5, /* 0x18-0x1B */
+	0x9A, 0xDE, 0x9A, 0xDF, 0x9A, 0xE0, 0xB7, 0xFA, /* 0x1C-0x1F */
+	0x9A, 0xE1, 0xEB, 0xB1, 0xC7, 0xE2, 0x9A, 0xE2, /* 0x20-0x23 */
+	0xEB, 0xB3, 0x9A, 0xE3, 0xBA, 0xA4, 0xD1, 0xF5, /* 0x24-0x27 */
+	0xB0, 0xB1, 0xEB, 0xB2, 0xEB, 0xB4, 0x9A, 0xE4, /* 0x28-0x2B */
+	0x9A, 0xE5, 0x9A, 0xE6, 0xB5, 0xAA, 0xC2, 0xC8, /* 0x2C-0x2F */
+	0xC7, 0xE8, 0x9A, 0xE7, 0xEB, 0xB5, 0x9A, 0xE8, /* 0x30-0x33 */
+	0xCB, 0xAE, 0xE3, 0xDF, 0x9A, 0xE9, 0x9A, 0xEA, /* 0x34-0x37 */
+	0xD3, 0xC0, 0x9A, 0xEB, 0x9A, 0xEC, 0x9A, 0xED, /* 0x38-0x3B */
+	0x9A, 0xEE, 0xD9, 0xDB, 0x9A, 0xEF, 0x9A, 0xF0, /* 0x3C-0x3F */
+	0xCD, 0xA1, 0xD6, 0xAD, 0xC7, 0xF3, 0x9A, 0xF1, /* 0x40-0x43 */
+	0x9A, 0xF2, 0x9A, 0xF3, 0xD9, 0xE0, 0xBB, 0xE3, /* 0x44-0x47 */
+	0x9A, 0xF4, 0xBA, 0xBA, 0xE3, 0xE2, 0x9A, 0xF5, /* 0x48-0x4B */
+	0x9A, 0xF6, 0x9A, 0xF7, 0x9A, 0xF8, 0x9A, 0xF9, /* 0x4C-0x4F */
+	0xCF, 0xAB, 0x9A, 0xFA, 0x9A, 0xFB, 0x9A, 0xFC, /* 0x50-0x53 */
+	0xE3, 0xE0, 0xC9, 0xC7, 0x9A, 0xFD, 0xBA, 0xB9, /* 0x54-0x57 */
+	0x9A, 0xFE, 0x9B, 0x40, 0x9B, 0x41, 0xD1, 0xB4, /* 0x58-0x5B */
+	0xE3, 0xE1, 0xC8, 0xEA, 0xB9, 0xAF, 0xBD, 0xAD, /* 0x5C-0x5F */
+	0xB3, 0xD8, 0xCE, 0xDB, 0x9B, 0x42, 0x9B, 0x43, /* 0x60-0x63 */
+	0xCC, 0xC0, 0x9B, 0x44, 0x9B, 0x45, 0x9B, 0x46, /* 0x64-0x67 */
+	0xE3, 0xE8, 0xE3, 0xE9, 0xCD, 0xF4, 0x9B, 0x47, /* 0x68-0x6B */
+	0x9B, 0x48, 0x9B, 0x49, 0x9B, 0x4A, 0x9B, 0x4B, /* 0x6C-0x6F */
+	0xCC, 0xAD, 0x9B, 0x4C, 0xBC, 0xB3, 0x9B, 0x4D, /* 0x70-0x73 */
+	0xE3, 0xEA, 0x9B, 0x4E, 0xE3, 0xEB, 0x9B, 0x4F, /* 0x74-0x77 */
+	0x9B, 0x50, 0xD0, 0xDA, 0x9B, 0x51, 0x9B, 0x52, /* 0x78-0x7B */
+	0x9B, 0x53, 0xC6, 0xFB, 0xB7, 0xDA, 0x9B, 0x54, /* 0x7C-0x7F */
+	
+	0x9B, 0x55, 0xC7, 0xDF, 0xD2, 0xCA, 0xCE, 0xD6, /* 0x80-0x83 */
+	0x9B, 0x56, 0xE3, 0xE4, 0xE3, 0xEC, 0x9B, 0x57, /* 0x84-0x87 */
+	0xC9, 0xF2, 0xB3, 0xC1, 0x9B, 0x58, 0x9B, 0x59, /* 0x88-0x8B */
+	0xE3, 0xE7, 0x9B, 0x5A, 0x9B, 0x5B, 0xC6, 0xE3, /* 0x8C-0x8F */
+	0xE3, 0xE5, 0x9B, 0x5C, 0x9B, 0x5D, 0xED, 0xB3, /* 0x90-0x93 */
+	0xE3, 0xE6, 0x9B, 0x5E, 0x9B, 0x5F, 0x9B, 0x60, /* 0x94-0x97 */
+	0x9B, 0x61, 0xC9, 0xB3, 0x9B, 0x62, 0xC5, 0xE6, /* 0x98-0x9B */
+	0x9B, 0x63, 0x9B, 0x64, 0x9B, 0x65, 0xB9, 0xB5, /* 0x9C-0x9F */
+	0x9B, 0x66, 0xC3, 0xBB, 0x9B, 0x67, 0xE3, 0xE3, /* 0xA0-0xA3 */
+	0xC5, 0xBD, 0xC1, 0xA4, 0xC2, 0xD9, 0xB2, 0xD7, /* 0xA4-0xA7 */
+	0x9B, 0x68, 0xE3, 0xED, 0xBB, 0xA6, 0xC4, 0xAD, /* 0xA8-0xAB */
+	0x9B, 0x69, 0xE3, 0xF0, 0xBE, 0xDA, 0x9B, 0x6A, /* 0xAC-0xAF */
+	0x9B, 0x6B, 0xE3, 0xFB, 0xE3, 0xF5, 0xBA, 0xD3, /* 0xB0-0xB3 */
+	0x9B, 0x6C, 0x9B, 0x6D, 0x9B, 0x6E, 0x9B, 0x6F, /* 0xB4-0xB7 */
+	0xB7, 0xD0, 0xD3, 0xCD, 0x9B, 0x70, 0xD6, 0xCE, /* 0xB8-0xBB */
+	0xD5, 0xD3, 0xB9, 0xC1, 0xD5, 0xB4, 0xD1, 0xD8, /* 0xBC-0xBF */
+	0x9B, 0x71, 0x9B, 0x72, 0x9B, 0x73, 0x9B, 0x74, /* 0xC0-0xC3 */
+	0xD0, 0xB9, 0xC7, 0xF6, 0x9B, 0x75, 0x9B, 0x76, /* 0xC4-0xC7 */
+	0x9B, 0x77, 0xC8, 0xAA, 0xB2, 0xB4, 0x9B, 0x78, /* 0xC8-0xCB */
+	0xC3, 0xDA, 0x9B, 0x79, 0x9B, 0x7A, 0x9B, 0x7B, /* 0xCC-0xCF */
+	0xE3, 0xEE, 0x9B, 0x7C, 0x9B, 0x7D, 0xE3, 0xFC, /* 0xD0-0xD3 */
+	0xE3, 0xEF, 0xB7, 0xA8, 0xE3, 0xF7, 0xE3, 0xF4, /* 0xD4-0xD7 */
+	0x9B, 0x7E, 0x9B, 0x80, 0x9B, 0x81, 0xB7, 0xBA, /* 0xD8-0xDB */
+	0x9B, 0x82, 0x9B, 0x83, 0xC5, 0xA2, 0x9B, 0x84, /* 0xDC-0xDF */
+	0xE3, 0xF6, 0xC5, 0xDD, 0xB2, 0xA8, 0xC6, 0xFC, /* 0xE0-0xE3 */
+	0x9B, 0x85, 0xC4, 0xE0, 0x9B, 0x86, 0x9B, 0x87, /* 0xE4-0xE7 */
+	0xD7, 0xA2, 0x9B, 0x88, 0xC0, 0xE1, 0xE3, 0xF9, /* 0xE8-0xEB */
+	0x9B, 0x89, 0x9B, 0x8A, 0xE3, 0xFA, 0xE3, 0xFD, /* 0xEC-0xEF */
+	0xCC, 0xA9, 0xE3, 0xF3, 0x9B, 0x8B, 0xD3, 0xBE, /* 0xF0-0xF3 */
+	0x9B, 0x8C, 0xB1, 0xC3, 0xED, 0xB4, 0xE3, 0xF1, /* 0xF4-0xF7 */
+	0xE3, 0xF2, 0x9B, 0x8D, 0xE3, 0xF8, 0xD0, 0xBA, /* 0xF8-0xFB */
+	0xC6, 0xC3, 0xD4, 0xF3, 0xE3, 0xFE, 0x9B, 0x8E, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_6D[512] = {
+	0x9B, 0x8F, 0xBD, 0xE0, 0x9B, 0x90, 0x9B, 0x91, /* 0x00-0x03 */
+	0xE4, 0xA7, 0x9B, 0x92, 0x9B, 0x93, 0xE4, 0xA6, /* 0x04-0x07 */
+	0x9B, 0x94, 0x9B, 0x95, 0x9B, 0x96, 0xD1, 0xF3, /* 0x08-0x0B */
+	0xE4, 0xA3, 0x9B, 0x97, 0xE4, 0xA9, 0x9B, 0x98, /* 0x0C-0x0F */
+	0x9B, 0x99, 0x9B, 0x9A, 0xC8, 0xF7, 0x9B, 0x9B, /* 0x10-0x13 */
+	0x9B, 0x9C, 0x9B, 0x9D, 0x9B, 0x9E, 0xCF, 0xB4, /* 0x14-0x17 */
+	0x9B, 0x9F, 0xE4, 0xA8, 0xE4, 0xAE, 0xC2, 0xE5, /* 0x18-0x1B */
+	0x9B, 0xA0, 0x9B, 0xA1, 0xB6, 0xB4, 0x9B, 0xA2, /* 0x1C-0x1F */
+	0x9B, 0xA3, 0x9B, 0xA4, 0x9B, 0xA5, 0x9B, 0xA6, /* 0x20-0x23 */
+	0x9B, 0xA7, 0xBD, 0xF2, 0x9B, 0xA8, 0xE4, 0xA2, /* 0x24-0x27 */
+	0x9B, 0xA9, 0x9B, 0xAA, 0xBA, 0xE9, 0xE4, 0xAA, /* 0x28-0x2B */
+	0x9B, 0xAB, 0x9B, 0xAC, 0xE4, 0xAC, 0x9B, 0xAD, /* 0x2C-0x2F */
+	0x9B, 0xAE, 0xB6, 0xFD, 0xD6, 0xDE, 0xE4, 0xB2, /* 0x30-0x33 */
+	0x9B, 0xAF, 0xE4, 0xAD, 0x9B, 0xB0, 0x9B, 0xB1, /* 0x34-0x37 */
+	0x9B, 0xB2, 0xE4, 0xA1, 0x9B, 0xB3, 0xBB, 0xEE, /* 0x38-0x3B */
+	0xCD, 0xDD, 0xC7, 0xA2, 0xC5, 0xC9, 0x9B, 0xB4, /* 0x3C-0x3F */
+	0x9B, 0xB5, 0xC1, 0xF7, 0x9B, 0xB6, 0xE4, 0xA4, /* 0x40-0x43 */
+	0x9B, 0xB7, 0xC7, 0xB3, 0xBD, 0xAC, 0xBD, 0xBD, /* 0x44-0x47 */
+	0xE4, 0xA5, 0x9B, 0xB8, 0xD7, 0xC7, 0xB2, 0xE2, /* 0x48-0x4B */
+	0x9B, 0xB9, 0xE4, 0xAB, 0xBC, 0xC3, 0xE4, 0xAF, /* 0x4C-0x4F */
+	0x9B, 0xBA, 0xBB, 0xEB, 0xE4, 0xB0, 0xC5, 0xA8, /* 0x50-0x53 */
+	0xE4, 0xB1, 0x9B, 0xBB, 0x9B, 0xBC, 0x9B, 0xBD, /* 0x54-0x57 */
+	0x9B, 0xBE, 0xD5, 0xE3, 0xBF, 0xA3, 0x9B, 0xBF, /* 0x58-0x5B */
+	0xE4, 0xBA, 0x9B, 0xC0, 0xE4, 0xB7, 0x9B, 0xC1, /* 0x5C-0x5F */
+	0xE4, 0xBB, 0x9B, 0xC2, 0x9B, 0xC3, 0xE4, 0xBD, /* 0x60-0x63 */
+	0x9B, 0xC4, 0x9B, 0xC5, 0xC6, 0xD6, 0x9B, 0xC6, /* 0x64-0x67 */
+	0x9B, 0xC7, 0xBA, 0xC6, 0xC0, 0xCB, 0x9B, 0xC8, /* 0x68-0x6B */
+	0x9B, 0xC9, 0x9B, 0xCA, 0xB8, 0xA1, 0xE4, 0xB4, /* 0x6C-0x6F */
+	0x9B, 0xCB, 0x9B, 0xCC, 0x9B, 0xCD, 0x9B, 0xCE, /* 0x70-0x73 */
+	0xD4, 0xA1, 0x9B, 0xCF, 0x9B, 0xD0, 0xBA, 0xA3, /* 0x74-0x77 */
+	0xBD, 0xFE, 0x9B, 0xD1, 0x9B, 0xD2, 0x9B, 0xD3, /* 0x78-0x7B */
+	0xE4, 0xBC, 0x9B, 0xD4, 0x9B, 0xD5, 0x9B, 0xD6, /* 0x7C-0x7F */
+	
+	0x9B, 0xD7, 0x9B, 0xD8, 0xCD, 0xBF, 0x9B, 0xD9, /* 0x80-0x83 */
+	0x9B, 0xDA, 0xC4, 0xF9, 0x9B, 0xDB, 0x9B, 0xDC, /* 0x84-0x87 */
+	0xCF, 0xFB, 0xC9, 0xE6, 0x9B, 0xDD, 0x9B, 0xDE, /* 0x88-0x8B */
+	0xD3, 0xBF, 0x9B, 0xDF, 0xCF, 0xD1, 0x9B, 0xE0, /* 0x8C-0x8F */
+	0x9B, 0xE1, 0xE4, 0xB3, 0x9B, 0xE2, 0xE4, 0xB8, /* 0x90-0x93 */
+	0xE4, 0xB9, 0xCC, 0xE9, 0x9B, 0xE3, 0x9B, 0xE4, /* 0x94-0x97 */
+	0x9B, 0xE5, 0x9B, 0xE6, 0x9B, 0xE7, 0xCC, 0xCE, /* 0x98-0x9B */
+	0x9B, 0xE8, 0xC0, 0xD4, 0xE4, 0xB5, 0xC1, 0xB0, /* 0x9C-0x9F */
+	0xE4, 0xB6, 0xCE, 0xD0, 0x9B, 0xE9, 0xBB, 0xC1, /* 0xA0-0xA3 */
+	0xB5, 0xD3, 0x9B, 0xEA, 0xC8, 0xF3, 0xBD, 0xA7, /* 0xA4-0xA7 */
+	0xD5, 0xC7, 0xC9, 0xAC, 0xB8, 0xA2, 0xE4, 0xCA, /* 0xA8-0xAB */
+	0x9B, 0xEB, 0x9B, 0xEC, 0xE4, 0xCC, 0xD1, 0xC4, /* 0xAC-0xAF */
+	0x9B, 0xED, 0x9B, 0xEE, 0xD2, 0xBA, 0x9B, 0xEF, /* 0xB0-0xB3 */
+	0x9B, 0xF0, 0xBA, 0xAD, 0x9B, 0xF1, 0x9B, 0xF2, /* 0xB4-0xB7 */
+	0xBA, 0xD4, 0x9B, 0xF3, 0x9B, 0xF4, 0x9B, 0xF5, /* 0xB8-0xBB */
+	0x9B, 0xF6, 0x9B, 0xF7, 0x9B, 0xF8, 0xE4, 0xC3, /* 0xBC-0xBF */
+	0xB5, 0xED, 0x9B, 0xF9, 0x9B, 0xFA, 0x9B, 0xFB, /* 0xC0-0xC3 */
+	0xD7, 0xCD, 0xE4, 0xC0, 0xCF, 0xFD, 0xE4, 0xBF, /* 0xC4-0xC7 */
+	0x9B, 0xFC, 0x9B, 0xFD, 0x9B, 0xFE, 0xC1, 0xDC, /* 0xC8-0xCB */
+	0xCC, 0xCA, 0x9C, 0x40, 0x9C, 0x41, 0x9C, 0x42, /* 0xCC-0xCF */
+	0x9C, 0x43, 0xCA, 0xE7, 0x9C, 0x44, 0x9C, 0x45, /* 0xD0-0xD3 */
+	0x9C, 0x46, 0x9C, 0x47, 0xC4, 0xD7, 0x9C, 0x48, /* 0xD4-0xD7 */
+	0xCC, 0xD4, 0xE4, 0xC8, 0x9C, 0x49, 0x9C, 0x4A, /* 0xD8-0xDB */
+	0x9C, 0x4B, 0xE4, 0xC7, 0xE4, 0xC1, 0x9C, 0x4C, /* 0xDC-0xDF */
+	0xE4, 0xC4, 0xB5, 0xAD, 0x9C, 0x4D, 0x9C, 0x4E, /* 0xE0-0xE3 */
+	0xD3, 0xD9, 0x9C, 0x4F, 0xE4, 0xC6, 0x9C, 0x50, /* 0xE4-0xE7 */
+	0x9C, 0x51, 0x9C, 0x52, 0x9C, 0x53, 0xD2, 0xF9, /* 0xE8-0xEB */
+	0xB4, 0xE3, 0x9C, 0x54, 0xBB, 0xB4, 0x9C, 0x55, /* 0xEC-0xEF */
+	0x9C, 0x56, 0xC9, 0xEE, 0x9C, 0x57, 0xB4, 0xBE, /* 0xF0-0xF3 */
+	0x9C, 0x58, 0x9C, 0x59, 0x9C, 0x5A, 0xBB, 0xEC, /* 0xF4-0xF7 */
+	0x9C, 0x5B, 0xD1, 0xCD, 0x9C, 0x5C, 0xCC, 0xED, /* 0xF8-0xFB */
+	0xED, 0xB5, 0x9C, 0x5D, 0x9C, 0x5E, 0x9C, 0x5F, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_6E[512] = {
+	0x9C, 0x60, 0x9C, 0x61, 0x9C, 0x62, 0x9C, 0x63, /* 0x00-0x03 */
+	0x9C, 0x64, 0xC7, 0xE5, 0x9C, 0x65, 0x9C, 0x66, /* 0x04-0x07 */
+	0x9C, 0x67, 0x9C, 0x68, 0xD4, 0xA8, 0x9C, 0x69, /* 0x08-0x0B */
+	0xE4, 0xCB, 0xD7, 0xD5, 0xE4, 0xC2, 0x9C, 0x6A, /* 0x0C-0x0F */
+	0xBD, 0xA5, 0xE4, 0xC5, 0x9C, 0x6B, 0x9C, 0x6C, /* 0x10-0x13 */
+	0xD3, 0xE6, 0x9C, 0x6D, 0xE4, 0xC9, 0xC9, 0xF8, /* 0x14-0x17 */
+	0x9C, 0x6E, 0x9C, 0x6F, 0xE4, 0xBE, 0x9C, 0x70, /* 0x18-0x1B */
+	0x9C, 0x71, 0xD3, 0xE5, 0x9C, 0x72, 0x9C, 0x73, /* 0x1C-0x1F */
+	0xC7, 0xFE, 0xB6, 0xC9, 0x9C, 0x74, 0xD4, 0xFC, /* 0x20-0x23 */
+	0xB2, 0xB3, 0xE4, 0xD7, 0x9C, 0x75, 0x9C, 0x76, /* 0x24-0x27 */
+	0x9C, 0x77, 0xCE, 0xC2, 0x9C, 0x78, 0xE4, 0xCD, /* 0x28-0x2B */
+	0x9C, 0x79, 0xCE, 0xBC, 0x9C, 0x7A, 0xB8, 0xDB, /* 0x2C-0x2F */
+	0x9C, 0x7B, 0x9C, 0x7C, 0xE4, 0xD6, 0x9C, 0x7D, /* 0x30-0x33 */
+	0xBF, 0xCA, 0x9C, 0x7E, 0x9C, 0x80, 0x9C, 0x81, /* 0x34-0x37 */
+	0xD3, 0xCE, 0x9C, 0x82, 0xC3, 0xEC, 0x9C, 0x83, /* 0x38-0x3B */
+	0x9C, 0x84, 0x9C, 0x85, 0x9C, 0x86, 0x9C, 0x87, /* 0x3C-0x3F */
+	0x9C, 0x88, 0x9C, 0x89, 0x9C, 0x8A, 0xC5, 0xC8, /* 0x40-0x43 */
+	0xE4, 0xD8, 0x9C, 0x8B, 0x9C, 0x8C, 0x9C, 0x8D, /* 0x44-0x47 */
+	0x9C, 0x8E, 0x9C, 0x8F, 0x9C, 0x90, 0x9C, 0x91, /* 0x48-0x4B */
+	0x9C, 0x92, 0xCD, 0xC4, 0xE4, 0xCF, 0x9C, 0x93, /* 0x4C-0x4F */
+	0x9C, 0x94, 0x9C, 0x95, 0x9C, 0x96, 0xE4, 0xD4, /* 0x50-0x53 */
+	0xE4, 0xD5, 0x9C, 0x97, 0xBA, 0xFE, 0x9C, 0x98, /* 0x54-0x57 */
+	0xCF, 0xE6, 0x9C, 0x99, 0x9C, 0x9A, 0xD5, 0xBF, /* 0x58-0x5B */
+	0x9C, 0x9B, 0x9C, 0x9C, 0x9C, 0x9D, 0xE4, 0xD2, /* 0x5C-0x5F */
+	0x9C, 0x9E, 0x9C, 0x9F, 0x9C, 0xA0, 0x9C, 0xA1, /* 0x60-0x63 */
+	0x9C, 0xA2, 0x9C, 0xA3, 0x9C, 0xA4, 0x9C, 0xA5, /* 0x64-0x67 */
+	0x9C, 0xA6, 0x9C, 0xA7, 0x9C, 0xA8, 0xE4, 0xD0, /* 0x68-0x6B */
+	0x9C, 0xA9, 0x9C, 0xAA, 0xE4, 0xCE, 0x9C, 0xAB, /* 0x6C-0x6F */
+	0x9C, 0xAC, 0x9C, 0xAD, 0x9C, 0xAE, 0x9C, 0xAF, /* 0x70-0x73 */
+	0x9C, 0xB0, 0x9C, 0xB1, 0x9C, 0xB2, 0x9C, 0xB3, /* 0x74-0x77 */
+	0x9C, 0xB4, 0x9C, 0xB5, 0x9C, 0xB6, 0x9C, 0xB7, /* 0x78-0x7B */
+	0x9C, 0xB8, 0x9C, 0xB9, 0xCD, 0xE5, 0xCA, 0xAA, /* 0x7C-0x7F */
+	
+	0x9C, 0xBA, 0x9C, 0xBB, 0x9C, 0xBC, 0xC0, 0xA3, /* 0x80-0x83 */
+	0x9C, 0xBD, 0xBD, 0xA6, 0xE4, 0xD3, 0x9C, 0xBE, /* 0x84-0x87 */
+	0x9C, 0xBF, 0xB8, 0xC8, 0x9C, 0xC0, 0x9C, 0xC1, /* 0x88-0x8B */
+	0x9C, 0xC2, 0x9C, 0xC3, 0x9C, 0xC4, 0xE4, 0xE7, /* 0x8C-0x8F */
+	0xD4, 0xB4, 0x9C, 0xC5, 0x9C, 0xC6, 0x9C, 0xC7, /* 0x90-0x93 */
+	0x9C, 0xC8, 0x9C, 0xC9, 0x9C, 0xCA, 0x9C, 0xCB, /* 0x94-0x97 */
+	0xE4, 0xDB, 0x9C, 0xCC, 0x9C, 0xCD, 0x9C, 0xCE, /* 0x98-0x9B */
+	0xC1, 0xEF, 0x9C, 0xCF, 0x9C, 0xD0, 0xE4, 0xE9, /* 0x9C-0x9F */
+	0x9C, 0xD1, 0x9C, 0xD2, 0xD2, 0xE7, 0x9C, 0xD3, /* 0xA0-0xA3 */
+	0x9C, 0xD4, 0xE4, 0xDF, 0x9C, 0xD5, 0xE4, 0xE0, /* 0xA4-0xA7 */
+	0x9C, 0xD6, 0x9C, 0xD7, 0xCF, 0xAA, 0x9C, 0xD8, /* 0xA8-0xAB */
+	0x9C, 0xD9, 0x9C, 0xDA, 0x9C, 0xDB, 0xCB, 0xDD, /* 0xAC-0xAF */
+	0x9C, 0xDC, 0xE4, 0xDA, 0xE4, 0xD1, 0x9C, 0xDD, /* 0xB0-0xB3 */
+	0xE4, 0xE5, 0x9C, 0xDE, 0xC8, 0xDC, 0xE4, 0xE3, /* 0xB4-0xB7 */
+	0x9C, 0xDF, 0x9C, 0xE0, 0xC4, 0xE7, 0xE4, 0xE2, /* 0xB8-0xBB */
+	0x9C, 0xE1, 0xE4, 0xE1, 0x9C, 0xE2, 0x9C, 0xE3, /* 0xBC-0xBF */
+	0x9C, 0xE4, 0xB3, 0xFC, 0xE4, 0xE8, 0x9C, 0xE5, /* 0xC0-0xC3 */
+	0x9C, 0xE6, 0x9C, 0xE7, 0x9C, 0xE8, 0xB5, 0xE1, /* 0xC4-0xC7 */
+	0x9C, 0xE9, 0x9C, 0xEA, 0x9C, 0xEB, 0xD7, 0xCC, /* 0xC8-0xCB */
+	0x9C, 0xEC, 0x9C, 0xED, 0x9C, 0xEE, 0xE4, 0xE6, /* 0xCC-0xCF */
+	0x9C, 0xEF, 0xBB, 0xAC, 0x9C, 0xF0, 0xD7, 0xD2, /* 0xD0-0xD3 */
+	0xCC, 0xCF, 0xEB, 0xF8, 0x9C, 0xF1, 0xE4, 0xE4, /* 0xD4-0xD7 */
+	0x9C, 0xF2, 0x9C, 0xF3, 0xB9, 0xF6, 0x9C, 0xF4, /* 0xD8-0xDB */
+	0x9C, 0xF5, 0x9C, 0xF6, 0xD6, 0xCD, 0xE4, 0xD9, /* 0xDC-0xDF */
+	0xE4, 0xDC, 0xC2, 0xFA, 0xE4, 0xDE, 0x9C, 0xF7, /* 0xE0-0xE3 */
+	0xC2, 0xCB, 0xC0, 0xC4, 0xC2, 0xD0, 0x9C, 0xF8, /* 0xE4-0xE7 */
+	0xB1, 0xF5, 0xCC, 0xB2, 0x9C, 0xF9, 0x9C, 0xFA, /* 0xE8-0xEB */
+	0x9C, 0xFB, 0x9C, 0xFC, 0x9C, 0xFD, 0x9C, 0xFE, /* 0xEC-0xEF */
+	0x9D, 0x40, 0x9D, 0x41, 0x9D, 0x42, 0x9D, 0x43, /* 0xF0-0xF3 */
+	0xB5, 0xCE, 0x9D, 0x44, 0x9D, 0x45, 0x9D, 0x46, /* 0xF4-0xF7 */
+	0x9D, 0x47, 0xE4, 0xEF, 0x9D, 0x48, 0x9D, 0x49, /* 0xF8-0xFB */
+	0x9D, 0x4A, 0x9D, 0x4B, 0x9D, 0x4C, 0x9D, 0x4D, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_6F[512] = {
+	0x9D, 0x4E, 0x9D, 0x4F, 0xC6, 0xAF, 0x9D, 0x50, /* 0x00-0x03 */
+	0x9D, 0x51, 0x9D, 0x52, 0xC6, 0xE1, 0x9D, 0x53, /* 0x04-0x07 */
+	0x9D, 0x54, 0xE4, 0xF5, 0x9D, 0x55, 0x9D, 0x56, /* 0x08-0x0B */
+	0x9D, 0x57, 0x9D, 0x58, 0x9D, 0x59, 0xC2, 0xA9, /* 0x0C-0x0F */
+	0x9D, 0x5A, 0x9D, 0x5B, 0x9D, 0x5C, 0xC0, 0xEC, /* 0x10-0x13 */
+	0xD1, 0xDD, 0xE4, 0xEE, 0x9D, 0x5D, 0x9D, 0x5E, /* 0x14-0x17 */
+	0x9D, 0x5F, 0x9D, 0x60, 0x9D, 0x61, 0x9D, 0x62, /* 0x18-0x1B */
+	0x9D, 0x63, 0x9D, 0x64, 0x9D, 0x65, 0x9D, 0x66, /* 0x1C-0x1F */
+	0xC4, 0xAE, 0x9D, 0x67, 0x9D, 0x68, 0x9D, 0x69, /* 0x20-0x23 */
+	0xE4, 0xED, 0x9D, 0x6A, 0x9D, 0x6B, 0x9D, 0x6C, /* 0x24-0x27 */
+	0x9D, 0x6D, 0xE4, 0xF6, 0xE4, 0xF4, 0xC2, 0xFE, /* 0x28-0x2B */
+	0x9D, 0x6E, 0xE4, 0xDD, 0x9D, 0x6F, 0xE4, 0xF0, /* 0x2C-0x2F */
+	0x9D, 0x70, 0xCA, 0xFE, 0x9D, 0x71, 0xD5, 0xC4, /* 0x30-0x33 */
+	0x9D, 0x72, 0x9D, 0x73, 0xE4, 0xF1, 0x9D, 0x74, /* 0x34-0x37 */
+	0x9D, 0x75, 0x9D, 0x76, 0x9D, 0x77, 0x9D, 0x78, /* 0x38-0x3B */
+	0x9D, 0x79, 0x9D, 0x7A, 0xD1, 0xFA, 0x9D, 0x7B, /* 0x3C-0x3F */
+	0x9D, 0x7C, 0x9D, 0x7D, 0x9D, 0x7E, 0x9D, 0x80, /* 0x40-0x43 */
+	0x9D, 0x81, 0x9D, 0x82, 0xE4, 0xEB, 0xE4, 0xEC, /* 0x44-0x47 */
+	0x9D, 0x83, 0x9D, 0x84, 0x9D, 0x85, 0xE4, 0xF2, /* 0x48-0x4B */
+	0x9D, 0x86, 0xCE, 0xAB, 0x9D, 0x87, 0x9D, 0x88, /* 0x4C-0x4F */
+	0x9D, 0x89, 0x9D, 0x8A, 0x9D, 0x8B, 0x9D, 0x8C, /* 0x50-0x53 */
+	0x9D, 0x8D, 0x9D, 0x8E, 0x9D, 0x8F, 0x9D, 0x90, /* 0x54-0x57 */
+	0xC5, 0xCB, 0x9D, 0x91, 0x9D, 0x92, 0x9D, 0x93, /* 0x58-0x5B */
+	0xC7, 0xB1, 0x9D, 0x94, 0xC2, 0xBA, 0x9D, 0x95, /* 0x5C-0x5F */
+	0x9D, 0x96, 0x9D, 0x97, 0xE4, 0xEA, 0x9D, 0x98, /* 0x60-0x63 */
+	0x9D, 0x99, 0x9D, 0x9A, 0xC1, 0xCA, 0x9D, 0x9B, /* 0x64-0x67 */
+	0x9D, 0x9C, 0x9D, 0x9D, 0x9D, 0x9E, 0x9D, 0x9F, /* 0x68-0x6B */
+	0x9D, 0xA0, 0xCC, 0xB6, 0xB3, 0xB1, 0x9D, 0xA1, /* 0x6C-0x6F */
+	0x9D, 0xA2, 0x9D, 0xA3, 0xE4, 0xFB, 0x9D, 0xA4, /* 0x70-0x73 */
+	0xE4, 0xF3, 0x9D, 0xA5, 0x9D, 0xA6, 0x9D, 0xA7, /* 0x74-0x77 */
+	0xE4, 0xFA, 0x9D, 0xA8, 0xE4, 0xFD, 0x9D, 0xA9, /* 0x78-0x7B */
+	0xE4, 0xFC, 0x9D, 0xAA, 0x9D, 0xAB, 0x9D, 0xAC, /* 0x7C-0x7F */
+	
+	0x9D, 0xAD, 0x9D, 0xAE, 0x9D, 0xAF, 0x9D, 0xB0, /* 0x80-0x83 */
+	0xB3, 0xCE, 0x9D, 0xB1, 0x9D, 0xB2, 0x9D, 0xB3, /* 0x84-0x87 */
+	0xB3, 0xBA, 0xE4, 0xF7, 0x9D, 0xB4, 0x9D, 0xB5, /* 0x88-0x8B */
+	0xE4, 0xF9, 0xE4, 0xF8, 0xC5, 0xEC, 0x9D, 0xB6, /* 0x8C-0x8F */
+	0x9D, 0xB7, 0x9D, 0xB8, 0x9D, 0xB9, 0x9D, 0xBA, /* 0x90-0x93 */
+	0x9D, 0xBB, 0x9D, 0xBC, 0x9D, 0xBD, 0x9D, 0xBE, /* 0x94-0x97 */
+	0x9D, 0xBF, 0x9D, 0xC0, 0x9D, 0xC1, 0x9D, 0xC2, /* 0x98-0x9B */
+	0xC0, 0xBD, 0x9D, 0xC3, 0x9D, 0xC4, 0x9D, 0xC5, /* 0x9C-0x9F */
+	0x9D, 0xC6, 0xD4, 0xE8, 0x9D, 0xC7, 0x9D, 0xC8, /* 0xA0-0xA3 */
+	0x9D, 0xC9, 0x9D, 0xCA, 0x9D, 0xCB, 0xE5, 0xA2, /* 0xA4-0xA7 */
+	0x9D, 0xCC, 0x9D, 0xCD, 0x9D, 0xCE, 0x9D, 0xCF, /* 0xA8-0xAB */
+	0x9D, 0xD0, 0x9D, 0xD1, 0x9D, 0xD2, 0x9D, 0xD3, /* 0xAC-0xAF */
+	0x9D, 0xD4, 0x9D, 0xD5, 0x9D, 0xD6, 0xB0, 0xC4, /* 0xB0-0xB3 */
+	0x9D, 0xD7, 0x9D, 0xD8, 0xE5, 0xA4, 0x9D, 0xD9, /* 0xB4-0xB7 */
+	0x9D, 0xDA, 0xE5, 0xA3, 0x9D, 0xDB, 0x9D, 0xDC, /* 0xB8-0xBB */
+	0x9D, 0xDD, 0x9D, 0xDE, 0x9D, 0xDF, 0x9D, 0xE0, /* 0xBC-0xBF */
+	0xBC, 0xA4, 0x9D, 0xE1, 0xE5, 0xA5, 0x9D, 0xE2, /* 0xC0-0xC3 */
+	0x9D, 0xE3, 0x9D, 0xE4, 0x9D, 0xE5, 0x9D, 0xE6, /* 0xC4-0xC7 */
+	0x9D, 0xE7, 0xE5, 0xA1, 0x9D, 0xE8, 0x9D, 0xE9, /* 0xC8-0xCB */
+	0x9D, 0xEA, 0x9D, 0xEB, 0x9D, 0xEC, 0x9D, 0xED, /* 0xCC-0xCF */
+	0x9D, 0xEE, 0xE4, 0xFE, 0xB1, 0xF4, 0x9D, 0xEF, /* 0xD0-0xD3 */
+	0x9D, 0xF0, 0x9D, 0xF1, 0x9D, 0xF2, 0x9D, 0xF3, /* 0xD4-0xD7 */
+	0x9D, 0xF4, 0x9D, 0xF5, 0x9D, 0xF6, 0x9D, 0xF7, /* 0xD8-0xDB */
+	0x9D, 0xF8, 0x9D, 0xF9, 0xE5, 0xA8, 0x9D, 0xFA, /* 0xDC-0xDF */
+	0xE5, 0xA9, 0xE5, 0xA6, 0x9D, 0xFB, 0x9D, 0xFC, /* 0xE0-0xE3 */
+	0x9D, 0xFD, 0x9D, 0xFE, 0x9E, 0x40, 0x9E, 0x41, /* 0xE4-0xE7 */
+	0x9E, 0x42, 0x9E, 0x43, 0x9E, 0x44, 0x9E, 0x45, /* 0xE8-0xEB */
+	0x9E, 0x46, 0x9E, 0x47, 0xE5, 0xA7, 0xE5, 0xAA, /* 0xEC-0xEF */
+	0x9E, 0x48, 0x9E, 0x49, 0x9E, 0x4A, 0x9E, 0x4B, /* 0xF0-0xF3 */
+	0x9E, 0x4C, 0x9E, 0x4D, 0x9E, 0x4E, 0x9E, 0x4F, /* 0xF4-0xF7 */
+	0x9E, 0x50, 0x9E, 0x51, 0x9E, 0x52, 0x9E, 0x53, /* 0xF8-0xFB */
+	0x9E, 0x54, 0x9E, 0x55, 0x9E, 0x56, 0x9E, 0x57, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_70[512] = {
+	0x9E, 0x58, 0x9E, 0x59, 0x9E, 0x5A, 0x9E, 0x5B, /* 0x00-0x03 */
+	0x9E, 0x5C, 0x9E, 0x5D, 0x9E, 0x5E, 0x9E, 0x5F, /* 0x04-0x07 */
+	0x9E, 0x60, 0x9E, 0x61, 0x9E, 0x62, 0x9E, 0x63, /* 0x08-0x0B */
+	0x9E, 0x64, 0x9E, 0x65, 0x9E, 0x66, 0x9E, 0x67, /* 0x0C-0x0F */
+	0x9E, 0x68, 0xC6, 0xD9, 0x9E, 0x69, 0x9E, 0x6A, /* 0x10-0x13 */
+	0x9E, 0x6B, 0x9E, 0x6C, 0x9E, 0x6D, 0x9E, 0x6E, /* 0x14-0x17 */
+	0x9E, 0x6F, 0x9E, 0x70, 0xE5, 0xAB, 0xE5, 0xAD, /* 0x18-0x1B */
+	0x9E, 0x71, 0x9E, 0x72, 0x9E, 0x73, 0x9E, 0x74, /* 0x1C-0x1F */
+	0x9E, 0x75, 0x9E, 0x76, 0x9E, 0x77, 0xE5, 0xAC, /* 0x20-0x23 */
+	0x9E, 0x78, 0x9E, 0x79, 0x9E, 0x7A, 0x9E, 0x7B, /* 0x24-0x27 */
+	0x9E, 0x7C, 0x9E, 0x7D, 0x9E, 0x7E, 0x9E, 0x80, /* 0x28-0x2B */
+	0x9E, 0x81, 0x9E, 0x82, 0x9E, 0x83, 0x9E, 0x84, /* 0x2C-0x2F */
+	0x9E, 0x85, 0x9E, 0x86, 0x9E, 0x87, 0x9E, 0x88, /* 0x30-0x33 */
+	0x9E, 0x89, 0xE5, 0xAF, 0x9E, 0x8A, 0x9E, 0x8B, /* 0x34-0x37 */
+	0x9E, 0x8C, 0xE5, 0xAE, 0x9E, 0x8D, 0x9E, 0x8E, /* 0x38-0x3B */
+	0x9E, 0x8F, 0x9E, 0x90, 0x9E, 0x91, 0x9E, 0x92, /* 0x3C-0x3F */
+	0x9E, 0x93, 0x9E, 0x94, 0x9E, 0x95, 0x9E, 0x96, /* 0x40-0x43 */
+	0x9E, 0x97, 0x9E, 0x98, 0x9E, 0x99, 0x9E, 0x9A, /* 0x44-0x47 */
+	0x9E, 0x9B, 0x9E, 0x9C, 0x9E, 0x9D, 0x9E, 0x9E, /* 0x48-0x4B */
+	0xB9, 0xE0, 0x9E, 0x9F, 0x9E, 0xA0, 0xE5, 0xB0, /* 0x4C-0x4F */
+	0x9E, 0xA1, 0x9E, 0xA2, 0x9E, 0xA3, 0x9E, 0xA4, /* 0x50-0x53 */
+	0x9E, 0xA5, 0x9E, 0xA6, 0x9E, 0xA7, 0x9E, 0xA8, /* 0x54-0x57 */
+	0x9E, 0xA9, 0x9E, 0xAA, 0x9E, 0xAB, 0x9E, 0xAC, /* 0x58-0x5B */
+	0x9E, 0xAD, 0x9E, 0xAE, 0xE5, 0xB1, 0x9E, 0xAF, /* 0x5C-0x5F */
+	0x9E, 0xB0, 0x9E, 0xB1, 0x9E, 0xB2, 0x9E, 0xB3, /* 0x60-0x63 */
+	0x9E, 0xB4, 0x9E, 0xB5, 0x9E, 0xB6, 0x9E, 0xB7, /* 0x64-0x67 */
+	0x9E, 0xB8, 0x9E, 0xB9, 0x9E, 0xBA, 0xBB, 0xF0, /* 0x68-0x6B */
+	0xEC, 0xE1, 0xC3, 0xF0, 0x9E, 0xBB, 0xB5, 0xC6, /* 0x6C-0x6F */
+	0xBB, 0xD2, 0x9E, 0xBC, 0x9E, 0xBD, 0x9E, 0xBE, /* 0x70-0x73 */
+	0x9E, 0xBF, 0xC1, 0xE9, 0xD4, 0xEE, 0x9E, 0xC0, /* 0x74-0x77 */
+	0xBE, 0xC4, 0x9E, 0xC1, 0x9E, 0xC2, 0x9E, 0xC3, /* 0x78-0x7B */
+	0xD7, 0xC6, 0x9E, 0xC4, 0xD4, 0xD6, 0xB2, 0xD3, /* 0x7C-0x7F */
+	
+	0xEC, 0xBE, 0x9E, 0xC5, 0x9E, 0xC6, 0x9E, 0xC7, /* 0x80-0x83 */
+	0x9E, 0xC8, 0xEA, 0xC1, 0x9E, 0xC9, 0x9E, 0xCA, /* 0x84-0x87 */
+	0x9E, 0xCB, 0xC2, 0xAF, 0xB4, 0xB6, 0x9E, 0xCC, /* 0x88-0x8B */
+	0x9E, 0xCD, 0x9E, 0xCE, 0xD1, 0xD7, 0x9E, 0xCF, /* 0x8C-0x8F */
+	0x9E, 0xD0, 0x9E, 0xD1, 0xB3, 0xB4, 0x9E, 0xD2, /* 0x90-0x93 */
+	0xC8, 0xB2, 0xBF, 0xBB, 0xEC, 0xC0, 0x9E, 0xD3, /* 0x94-0x97 */
+	0x9E, 0xD4, 0xD6, 0xCB, 0x9E, 0xD5, 0x9E, 0xD6, /* 0x98-0x9B */
+	0xEC, 0xBF, 0xEC, 0xC1, 0x9E, 0xD7, 0x9E, 0xD8, /* 0x9C-0x9F */
+	0x9E, 0xD9, 0x9E, 0xDA, 0x9E, 0xDB, 0x9E, 0xDC, /* 0xA0-0xA3 */
+	0x9E, 0xDD, 0x9E, 0xDE, 0x9E, 0xDF, 0x9E, 0xE0, /* 0xA4-0xA7 */
+	0x9E, 0xE1, 0x9E, 0xE2, 0x9E, 0xE3, 0xEC, 0xC5, /* 0xA8-0xAB */
+	0xBE, 0xE6, 0xCC, 0xBF, 0xC5, 0xDA, 0xBE, 0xBC, /* 0xAC-0xAF */
+	0x9E, 0xE4, 0xEC, 0xC6, 0x9E, 0xE5, 0xB1, 0xFE, /* 0xB0-0xB3 */
+	0x9E, 0xE6, 0x9E, 0xE7, 0x9E, 0xE8, 0xEC, 0xC4, /* 0xB4-0xB7 */
+	0xD5, 0xA8, 0xB5, 0xE3, 0x9E, 0xE9, 0xEC, 0xC2, /* 0xB8-0xBB */
+	0xC1, 0xB6, 0xB3, 0xE3, 0x9E, 0xEA, 0x9E, 0xEB, /* 0xBC-0xBF */
+	0xEC, 0xC3, 0xCB, 0xB8, 0xC0, 0xC3, 0xCC, 0xFE, /* 0xC0-0xC3 */
+	0x9E, 0xEC, 0x9E, 0xED, 0x9E, 0xEE, 0x9E, 0xEF, /* 0xC4-0xC7 */
+	0xC1, 0xD2, 0x9E, 0xF0, 0xEC, 0xC8, 0x9E, 0xF1, /* 0xC8-0xCB */
+	0x9E, 0xF2, 0x9E, 0xF3, 0x9E, 0xF4, 0x9E, 0xF5, /* 0xCC-0xCF */
+	0x9E, 0xF6, 0x9E, 0xF7, 0x9E, 0xF8, 0x9E, 0xF9, /* 0xD0-0xD3 */
+	0x9E, 0xFA, 0x9E, 0xFB, 0x9E, 0xFC, 0x9E, 0xFD, /* 0xD4-0xD7 */
+	0xBA, 0xE6, 0xC0, 0xD3, 0x9E, 0xFE, 0xD6, 0xF2, /* 0xD8-0xDB */
+	0x9F, 0x40, 0x9F, 0x41, 0x9F, 0x42, 0xD1, 0xCC, /* 0xDC-0xDF */
+	0x9F, 0x43, 0x9F, 0x44, 0x9F, 0x45, 0x9F, 0x46, /* 0xE0-0xE3 */
+	0xBF, 0xBE, 0x9F, 0x47, 0xB7, 0xB3, 0xC9, 0xD5, /* 0xE4-0xE7 */
+	0xEC, 0xC7, 0xBB, 0xE2, 0x9F, 0x48, 0xCC, 0xCC, /* 0xE8-0xEB */
+	0xBD, 0xFD, 0xC8, 0xC8, 0x9F, 0x49, 0xCF, 0xA9, /* 0xEC-0xEF */
+	0x9F, 0x4A, 0x9F, 0x4B, 0x9F, 0x4C, 0x9F, 0x4D, /* 0xF0-0xF3 */
+	0x9F, 0x4E, 0x9F, 0x4F, 0x9F, 0x50, 0xCD, 0xE9, /* 0xF4-0xF7 */
+	0x9F, 0x51, 0xC5, 0xEB, 0x9F, 0x52, 0x9F, 0x53, /* 0xF8-0xFB */
+	0x9F, 0x54, 0xB7, 0xE9, 0x9F, 0x55, 0x9F, 0x56, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_71[512] = {
+	0x9F, 0x57, 0x9F, 0x58, 0x9F, 0x59, 0x9F, 0x5A, /* 0x00-0x03 */
+	0x9F, 0x5B, 0x9F, 0x5C, 0x9F, 0x5D, 0x9F, 0x5E, /* 0x04-0x07 */
+	0x9F, 0x5F, 0xD1, 0xC9, 0xBA, 0xB8, 0x9F, 0x60, /* 0x08-0x0B */
+	0x9F, 0x61, 0x9F, 0x62, 0x9F, 0x63, 0x9F, 0x64, /* 0x0C-0x0F */
+	0xEC, 0xC9, 0x9F, 0x65, 0x9F, 0x66, 0xEC, 0xCA, /* 0x10-0x13 */
+	0x9F, 0x67, 0xBB, 0xC0, 0xEC, 0xCB, 0x9F, 0x68, /* 0x14-0x17 */
+	0xEC, 0xE2, 0xB1, 0xBA, 0xB7, 0xD9, 0x9F, 0x69, /* 0x18-0x1B */
+	0x9F, 0x6A, 0x9F, 0x6B, 0x9F, 0x6C, 0x9F, 0x6D, /* 0x1C-0x1F */
+	0x9F, 0x6E, 0x9F, 0x6F, 0x9F, 0x70, 0x9F, 0x71, /* 0x20-0x23 */
+	0x9F, 0x72, 0x9F, 0x73, 0xBD, 0xB9, 0x9F, 0x74, /* 0x24-0x27 */
+	0x9F, 0x75, 0x9F, 0x76, 0x9F, 0x77, 0x9F, 0x78, /* 0x28-0x2B */
+	0x9F, 0x79, 0x9F, 0x7A, 0x9F, 0x7B, 0xEC, 0xCC, /* 0x2C-0x2F */
+	0xD1, 0xE6, 0xEC, 0xCD, 0x9F, 0x7C, 0x9F, 0x7D, /* 0x30-0x33 */
+	0x9F, 0x7E, 0x9F, 0x80, 0xC8, 0xBB, 0x9F, 0x81, /* 0x34-0x37 */
+	0x9F, 0x82, 0x9F, 0x83, 0x9F, 0x84, 0x9F, 0x85, /* 0x38-0x3B */
+	0x9F, 0x86, 0x9F, 0x87, 0x9F, 0x88, 0x9F, 0x89, /* 0x3C-0x3F */
+	0x9F, 0x8A, 0x9F, 0x8B, 0x9F, 0x8C, 0x9F, 0x8D, /* 0x40-0x43 */
+	0x9F, 0x8E, 0xEC, 0xD1, 0x9F, 0x8F, 0x9F, 0x90, /* 0x44-0x47 */
+	0x9F, 0x91, 0x9F, 0x92, 0xEC, 0xD3, 0x9F, 0x93, /* 0x48-0x4B */
+	0xBB, 0xCD, 0x9F, 0x94, 0xBC, 0xE5, 0x9F, 0x95, /* 0x4C-0x4F */
+	0x9F, 0x96, 0x9F, 0x97, 0x9F, 0x98, 0x9F, 0x99, /* 0x50-0x53 */
+	0x9F, 0x9A, 0x9F, 0x9B, 0x9F, 0x9C, 0x9F, 0x9D, /* 0x54-0x57 */
+	0x9F, 0x9E, 0x9F, 0x9F, 0x9F, 0xA0, 0x9F, 0xA1, /* 0x58-0x5B */
+	0xEC, 0xCF, 0x9F, 0xA2, 0xC9, 0xB7, 0x9F, 0xA3, /* 0x5C-0x5F */
+	0x9F, 0xA4, 0x9F, 0xA5, 0x9F, 0xA6, 0x9F, 0xA7, /* 0x60-0x63 */
+	0xC3, 0xBA, 0x9F, 0xA8, 0xEC, 0xE3, 0xD5, 0xD5, /* 0x64-0x67 */
+	0xEC, 0xD0, 0x9F, 0xA9, 0x9F, 0xAA, 0x9F, 0xAB, /* 0x68-0x6B */
+	0x9F, 0xAC, 0x9F, 0xAD, 0xD6, 0xF3, 0x9F, 0xAE, /* 0x6C-0x6F */
+	0x9F, 0xAF, 0x9F, 0xB0, 0xEC, 0xD2, 0xEC, 0xCE, /* 0x70-0x73 */
+	0x9F, 0xB1, 0x9F, 0xB2, 0x9F, 0xB3, 0x9F, 0xB4, /* 0x74-0x77 */
+	0xEC, 0xD4, 0x9F, 0xB5, 0xEC, 0xD5, 0x9F, 0xB6, /* 0x78-0x7B */
+	0x9F, 0xB7, 0xC9, 0xBF, 0x9F, 0xB8, 0x9F, 0xB9, /* 0x7C-0x7F */
+	
+	0x9F, 0xBA, 0x9F, 0xBB, 0x9F, 0xBC, 0x9F, 0xBD, /* 0x80-0x83 */
+	0xCF, 0xA8, 0x9F, 0xBE, 0x9F, 0xBF, 0x9F, 0xC0, /* 0x84-0x87 */
+	0x9F, 0xC1, 0x9F, 0xC2, 0xD0, 0xDC, 0x9F, 0xC3, /* 0x88-0x8B */
+	0x9F, 0xC4, 0x9F, 0xC5, 0x9F, 0xC6, 0xD1, 0xAC, /* 0x8C-0x8F */
+	0x9F, 0xC7, 0x9F, 0xC8, 0x9F, 0xC9, 0x9F, 0xCA, /* 0x90-0x93 */
+	0xC8, 0xDB, 0x9F, 0xCB, 0x9F, 0xCC, 0x9F, 0xCD, /* 0x94-0x97 */
+	0xEC, 0xD6, 0xCE, 0xF5, 0x9F, 0xCE, 0x9F, 0xCF, /* 0x98-0x9B */
+	0x9F, 0xD0, 0x9F, 0xD1, 0x9F, 0xD2, 0xCA, 0xEC, /* 0x9C-0x9F */
+	0xEC, 0xDA, 0x9F, 0xD3, 0x9F, 0xD4, 0x9F, 0xD5, /* 0xA0-0xA3 */
+	0x9F, 0xD6, 0x9F, 0xD7, 0x9F, 0xD8, 0x9F, 0xD9, /* 0xA4-0xA7 */
+	0xEC, 0xD9, 0x9F, 0xDA, 0x9F, 0xDB, 0x9F, 0xDC, /* 0xA8-0xAB */
+	0xB0, 0xBE, 0x9F, 0xDD, 0x9F, 0xDE, 0x9F, 0xDF, /* 0xAC-0xAF */
+	0x9F, 0xE0, 0x9F, 0xE1, 0x9F, 0xE2, 0xEC, 0xD7, /* 0xB0-0xB3 */
+	0x9F, 0xE3, 0xEC, 0xD8, 0x9F, 0xE4, 0x9F, 0xE5, /* 0xB4-0xB7 */
+	0x9F, 0xE6, 0xEC, 0xE4, 0x9F, 0xE7, 0x9F, 0xE8, /* 0xB8-0xBB */
+	0x9F, 0xE9, 0x9F, 0xEA, 0x9F, 0xEB, 0x9F, 0xEC, /* 0xBC-0xBF */
+	0x9F, 0xED, 0x9F, 0xEE, 0x9F, 0xEF, 0xC8, 0xBC, /* 0xC0-0xC3 */
+	0x9F, 0xF0, 0x9F, 0xF1, 0x9F, 0xF2, 0x9F, 0xF3, /* 0xC4-0xC7 */
+	0x9F, 0xF4, 0x9F, 0xF5, 0x9F, 0xF6, 0x9F, 0xF7, /* 0xC8-0xCB */
+	0x9F, 0xF8, 0x9F, 0xF9, 0xC1, 0xC7, 0x9F, 0xFA, /* 0xCC-0xCF */
+	0x9F, 0xFB, 0x9F, 0xFC, 0x9F, 0xFD, 0x9F, 0xFE, /* 0xD0-0xD3 */
+	0xEC, 0xDC, 0xD1, 0xE0, 0xA0, 0x40, 0xA0, 0x41, /* 0xD4-0xD7 */
+	0xA0, 0x42, 0xA0, 0x43, 0xA0, 0x44, 0xA0, 0x45, /* 0xD8-0xDB */
+	0xA0, 0x46, 0xA0, 0x47, 0xA0, 0x48, 0xA0, 0x49, /* 0xDC-0xDF */
+	0xEC, 0xDB, 0xA0, 0x4A, 0xA0, 0x4B, 0xA0, 0x4C, /* 0xE0-0xE3 */
+	0xA0, 0x4D, 0xD4, 0xEF, 0xA0, 0x4E, 0xEC, 0xDD, /* 0xE4-0xE7 */
+	0xA0, 0x4F, 0xA0, 0x50, 0xA0, 0x51, 0xA0, 0x52, /* 0xE8-0xEB */
+	0xA0, 0x53, 0xA0, 0x54, 0xDB, 0xC6, 0xA0, 0x55, /* 0xEC-0xEF */
+	0xA0, 0x56, 0xA0, 0x57, 0xA0, 0x58, 0xA0, 0x59, /* 0xF0-0xF3 */
+	0xA0, 0x5A, 0xA0, 0x5B, 0xA0, 0x5C, 0xA0, 0x5D, /* 0xF4-0xF7 */
+	0xA0, 0x5E, 0xEC, 0xDE, 0xA0, 0x5F, 0xA0, 0x60, /* 0xF8-0xFB */
+	0xA0, 0x61, 0xA0, 0x62, 0xA0, 0x63, 0xA0, 0x64, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_72[512] = {
+	0xA0, 0x65, 0xA0, 0x66, 0xA0, 0x67, 0xA0, 0x68, /* 0x00-0x03 */
+	0xA0, 0x69, 0xA0, 0x6A, 0xB1, 0xAC, 0xA0, 0x6B, /* 0x04-0x07 */
+	0xA0, 0x6C, 0xA0, 0x6D, 0xA0, 0x6E, 0xA0, 0x6F, /* 0x08-0x0B */
+	0xA0, 0x70, 0xA0, 0x71, 0xA0, 0x72, 0xA0, 0x73, /* 0x0C-0x0F */
+	0xA0, 0x74, 0xA0, 0x75, 0xA0, 0x76, 0xA0, 0x77, /* 0x10-0x13 */
+	0xA0, 0x78, 0xA0, 0x79, 0xA0, 0x7A, 0xA0, 0x7B, /* 0x14-0x17 */
+	0xA0, 0x7C, 0xA0, 0x7D, 0xA0, 0x7E, 0xA0, 0x80, /* 0x18-0x1B */
+	0xA0, 0x81, 0xEC, 0xDF, 0xA0, 0x82, 0xA0, 0x83, /* 0x1C-0x1F */
+	0xA0, 0x84, 0xA0, 0x85, 0xA0, 0x86, 0xA0, 0x87, /* 0x20-0x23 */
+	0xA0, 0x88, 0xA0, 0x89, 0xA0, 0x8A, 0xA0, 0x8B, /* 0x24-0x27 */
+	0xEC, 0xE0, 0xA0, 0x8C, 0xD7, 0xA6, 0xA0, 0x8D, /* 0x28-0x2B */
+	0xC5, 0xC0, 0xA0, 0x8E, 0xA0, 0x8F, 0xA0, 0x90, /* 0x2C-0x2F */
+	0xEB, 0xBC, 0xB0, 0xAE, 0xA0, 0x91, 0xA0, 0x92, /* 0x30-0x33 */
+	0xA0, 0x93, 0xBE, 0xF4, 0xB8, 0xB8, 0xD2, 0xAF, /* 0x34-0x37 */
+	0xB0, 0xD6, 0xB5, 0xF9, 0xA0, 0x94, 0xD8, 0xB3, /* 0x38-0x3B */
+	0xA0, 0x95, 0xCB, 0xAC, 0xA0, 0x96, 0xE3, 0xDD, /* 0x3C-0x3F */
+	0xA0, 0x97, 0xA0, 0x98, 0xA0, 0x99, 0xA0, 0x9A, /* 0x40-0x43 */
+	0xA0, 0x9B, 0xA0, 0x9C, 0xA0, 0x9D, 0xC6, 0xAC, /* 0x44-0x47 */
+	0xB0, 0xE6, 0xA0, 0x9E, 0xA0, 0x9F, 0xA0, 0xA0, /* 0x48-0x4B */
+	0xC5, 0xC6, 0xEB, 0xB9, 0xA0, 0xA1, 0xA0, 0xA2, /* 0x4C-0x4F */
+	0xA0, 0xA3, 0xA0, 0xA4, 0xEB, 0xBA, 0xA0, 0xA5, /* 0x50-0x53 */
+	0xA0, 0xA6, 0xA0, 0xA7, 0xEB, 0xBB, 0xA0, 0xA8, /* 0x54-0x57 */
+	0xA0, 0xA9, 0xD1, 0xC0, 0xA0, 0xAA, 0xC5, 0xA3, /* 0x58-0x5B */
+	0xA0, 0xAB, 0xEA, 0xF2, 0xA0, 0xAC, 0xC4, 0xB2, /* 0x5C-0x5F */
+	0xA0, 0xAD, 0xC4, 0xB5, 0xC0, 0xCE, 0xA0, 0xAE, /* 0x60-0x63 */
+	0xA0, 0xAF, 0xA0, 0xB0, 0xEA, 0xF3, 0xC4, 0xC1, /* 0x64-0x67 */
+	0xA0, 0xB1, 0xCE, 0xEF, 0xA0, 0xB2, 0xA0, 0xB3, /* 0x68-0x6B */
+	0xA0, 0xB4, 0xA0, 0xB5, 0xEA, 0xF0, 0xEA, 0xF4, /* 0x6C-0x6F */
+	0xA0, 0xB6, 0xA0, 0xB7, 0xC9, 0xFC, 0xA0, 0xB8, /* 0x70-0x73 */
+	0xA0, 0xB9, 0xC7, 0xA3, 0xA0, 0xBA, 0xA0, 0xBB, /* 0x74-0x77 */
+	0xA0, 0xBC, 0xCC, 0xD8, 0xCE, 0xFE, 0xA0, 0xBD, /* 0x78-0x7B */
+	0xA0, 0xBE, 0xA0, 0xBF, 0xEA, 0xF5, 0xEA, 0xF6, /* 0x7C-0x7F */
+	
+	0xCF, 0xAC, 0xC0, 0xE7, 0xA0, 0xC0, 0xA0, 0xC1, /* 0x80-0x83 */
+	0xEA, 0xF7, 0xA0, 0xC2, 0xA0, 0xC3, 0xA0, 0xC4, /* 0x84-0x87 */
+	0xA0, 0xC5, 0xA0, 0xC6, 0xB6, 0xBF, 0xEA, 0xF8, /* 0x88-0x8B */
+	0xA0, 0xC7, 0xEA, 0xF9, 0xA0, 0xC8, 0xEA, 0xFA, /* 0x8C-0x8F */
+	0xA0, 0xC9, 0xA0, 0xCA, 0xEA, 0xFB, 0xA0, 0xCB, /* 0x90-0x93 */
+	0xA0, 0xCC, 0xA0, 0xCD, 0xA0, 0xCE, 0xA0, 0xCF, /* 0x94-0x97 */
+	0xA0, 0xD0, 0xA0, 0xD1, 0xA0, 0xD2, 0xA0, 0xD3, /* 0x98-0x9B */
+	0xA0, 0xD4, 0xA0, 0xD5, 0xA0, 0xD6, 0xEA, 0xF1, /* 0x9C-0x9F */
+	0xA0, 0xD7, 0xA0, 0xD8, 0xA0, 0xD9, 0xA0, 0xDA, /* 0xA0-0xA3 */
+	0xA0, 0xDB, 0xA0, 0xDC, 0xA0, 0xDD, 0xA0, 0xDE, /* 0xA4-0xA7 */
+	0xA0, 0xDF, 0xA0, 0xE0, 0xA0, 0xE1, 0xA0, 0xE2, /* 0xA8-0xAB */
+	0xC8, 0xAE, 0xE1, 0xEB, 0xA0, 0xE3, 0xB7, 0xB8, /* 0xAC-0xAF */
+	0xE1, 0xEC, 0xA0, 0xE4, 0xA0, 0xE5, 0xA0, 0xE6, /* 0xB0-0xB3 */
+	0xE1, 0xED, 0xA0, 0xE7, 0xD7, 0xB4, 0xE1, 0xEE, /* 0xB4-0xB7 */
+	0xE1, 0xEF, 0xD3, 0xCC, 0xA0, 0xE8, 0xA0, 0xE9, /* 0xB8-0xBB */
+	0xA0, 0xEA, 0xA0, 0xEB, 0xA0, 0xEC, 0xA0, 0xED, /* 0xBC-0xBF */
+	0xA0, 0xEE, 0xE1, 0xF1, 0xBF, 0xF1, 0xE1, 0xF0, /* 0xC0-0xC3 */
+	0xB5, 0xD2, 0xA0, 0xEF, 0xA0, 0xF0, 0xA0, 0xF1, /* 0xC4-0xC7 */
+	0xB1, 0xB7, 0xA0, 0xF2, 0xA0, 0xF3, 0xA0, 0xF4, /* 0xC8-0xCB */
+	0xA0, 0xF5, 0xE1, 0xF3, 0xE1, 0xF2, 0xA0, 0xF6, /* 0xCC-0xCF */
+	0xBA, 0xFC, 0xA0, 0xF7, 0xE1, 0xF4, 0xA0, 0xF8, /* 0xD0-0xD3 */
+	0xA0, 0xF9, 0xA0, 0xFA, 0xA0, 0xFB, 0xB9, 0xB7, /* 0xD4-0xD7 */
+	0xA0, 0xFC, 0xBE, 0xD1, 0xA0, 0xFD, 0xA0, 0xFE, /* 0xD8-0xDB */
+	0xAA, 0x40, 0xAA, 0x41, 0xC4, 0xFC, 0xAA, 0x42, /* 0xDC-0xDF */
+	0xBA, 0xDD, 0xBD, 0xC6, 0xAA, 0x43, 0xAA, 0x44, /* 0xE0-0xE3 */
+	0xAA, 0x45, 0xAA, 0x46, 0xAA, 0x47, 0xAA, 0x48, /* 0xE4-0xE7 */
+	0xE1, 0xF5, 0xE1, 0xF7, 0xAA, 0x49, 0xAA, 0x4A, /* 0xE8-0xEB */
+	0xB6, 0xC0, 0xCF, 0xC1, 0xCA, 0xA8, 0xE1, 0xF6, /* 0xEC-0xEF */
+	0xD5, 0xF8, 0xD3, 0xFC, 0xE1, 0xF8, 0xE1, 0xFC, /* 0xF0-0xF3 */
+	0xE1, 0xF9, 0xAA, 0x4B, 0xAA, 0x4C, 0xE1, 0xFA, /* 0xF4-0xF7 */
+	0xC0, 0xEA, 0xAA, 0x4D, 0xE1, 0xFE, 0xE2, 0xA1, /* 0xF8-0xFB */
+	0xC0, 0xC7, 0xAA, 0x4E, 0xAA, 0x4F, 0xAA, 0x50, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_73[512] = {
+	0xAA, 0x51, 0xE1, 0xFB, 0xAA, 0x52, 0xE1, 0xFD, /* 0x00-0x03 */
+	0xAA, 0x53, 0xAA, 0x54, 0xAA, 0x55, 0xAA, 0x56, /* 0x04-0x07 */
+	0xAA, 0x57, 0xAA, 0x58, 0xE2, 0xA5, 0xAA, 0x59, /* 0x08-0x0B */
+	0xAA, 0x5A, 0xAA, 0x5B, 0xC1, 0xD4, 0xAA, 0x5C, /* 0x0C-0x0F */
+	0xAA, 0x5D, 0xAA, 0x5E, 0xAA, 0x5F, 0xE2, 0xA3, /* 0x10-0x13 */
+	0xAA, 0x60, 0xE2, 0xA8, 0xB2, 0xFE, 0xE2, 0xA2, /* 0x14-0x17 */
+	0xAA, 0x61, 0xAA, 0x62, 0xAA, 0x63, 0xC3, 0xCD, /* 0x18-0x1B */
+	0xB2, 0xC2, 0xE2, 0xA7, 0xE2, 0xA6, 0xAA, 0x64, /* 0x1C-0x1F */
+	0xAA, 0x65, 0xE2, 0xA4, 0xE2, 0xA9, 0xAA, 0x66, /* 0x20-0x23 */
+	0xAA, 0x67, 0xE2, 0xAB, 0xAA, 0x68, 0xAA, 0x69, /* 0x24-0x27 */
+	0xAA, 0x6A, 0xD0, 0xC9, 0xD6, 0xED, 0xC3, 0xA8, /* 0x28-0x2B */
+	0xE2, 0xAC, 0xAA, 0x6B, 0xCF, 0xD7, 0xAA, 0x6C, /* 0x2C-0x2F */
+	0xAA, 0x6D, 0xE2, 0xAE, 0xAA, 0x6E, 0xAA, 0x6F, /* 0x30-0x33 */
+	0xBA, 0xEF, 0xAA, 0x70, 0xAA, 0x71, 0xE9, 0xE0, /* 0x34-0x37 */
+	0xE2, 0xAD, 0xE2, 0xAA, 0xAA, 0x72, 0xAA, 0x73, /* 0x38-0x3B */
+	0xAA, 0x74, 0xAA, 0x75, 0xBB, 0xAB, 0xD4, 0xB3, /* 0x3C-0x3F */
+	0xAA, 0x76, 0xAA, 0x77, 0xAA, 0x78, 0xAA, 0x79, /* 0x40-0x43 */
+	0xAA, 0x7A, 0xAA, 0x7B, 0xAA, 0x7C, 0xAA, 0x7D, /* 0x44-0x47 */
+	0xAA, 0x7E, 0xAA, 0x80, 0xAA, 0x81, 0xAA, 0x82, /* 0x48-0x4B */
+	0xAA, 0x83, 0xE2, 0xB0, 0xAA, 0x84, 0xAA, 0x85, /* 0x4C-0x4F */
+	0xE2, 0xAF, 0xAA, 0x86, 0xE9, 0xE1, 0xAA, 0x87, /* 0x50-0x53 */
+	0xAA, 0x88, 0xAA, 0x89, 0xAA, 0x8A, 0xE2, 0xB1, /* 0x54-0x57 */
+	0xAA, 0x8B, 0xAA, 0x8C, 0xAA, 0x8D, 0xAA, 0x8E, /* 0x58-0x5B */
+	0xAA, 0x8F, 0xAA, 0x90, 0xAA, 0x91, 0xAA, 0x92, /* 0x5C-0x5F */
+	0xE2, 0xB2, 0xAA, 0x93, 0xAA, 0x94, 0xAA, 0x95, /* 0x60-0x63 */
+	0xAA, 0x96, 0xAA, 0x97, 0xAA, 0x98, 0xAA, 0x99, /* 0x64-0x67 */
+	0xAA, 0x9A, 0xAA, 0x9B, 0xAA, 0x9C, 0xAA, 0x9D, /* 0x68-0x6B */
+	0xE2, 0xB3, 0xCC, 0xA1, 0xAA, 0x9E, 0xE2, 0xB4, /* 0x6C-0x6F */
+	0xAA, 0x9F, 0xAA, 0xA0, 0xAB, 0x40, 0xAB, 0x41, /* 0x70-0x73 */
+	0xAB, 0x42, 0xAB, 0x43, 0xAB, 0x44, 0xAB, 0x45, /* 0x74-0x77 */
+	0xAB, 0x46, 0xAB, 0x47, 0xAB, 0x48, 0xAB, 0x49, /* 0x78-0x7B */
+	0xAB, 0x4A, 0xAB, 0x4B, 0xE2, 0xB5, 0xAB, 0x4C, /* 0x7C-0x7F */
+	
+	0xAB, 0x4D, 0xAB, 0x4E, 0xAB, 0x4F, 0xAB, 0x50, /* 0x80-0x83 */
+	0xD0, 0xFE, 0xAB, 0x51, 0xAB, 0x52, 0xC2, 0xCA, /* 0x84-0x87 */
+	0xAB, 0x53, 0xD3, 0xF1, 0xAB, 0x54, 0xCD, 0xF5, /* 0x88-0x8B */
+	0xAB, 0x55, 0xAB, 0x56, 0xE7, 0xE0, 0xAB, 0x57, /* 0x8C-0x8F */
+	0xAB, 0x58, 0xE7, 0xE1, 0xAB, 0x59, 0xAB, 0x5A, /* 0x90-0x93 */
+	0xAB, 0x5B, 0xAB, 0x5C, 0xBE, 0xC1, 0xAB, 0x5D, /* 0x94-0x97 */
+	0xAB, 0x5E, 0xAB, 0x5F, 0xAB, 0x60, 0xC2, 0xEA, /* 0x98-0x9B */
+	0xAB, 0x61, 0xAB, 0x62, 0xAB, 0x63, 0xE7, 0xE4, /* 0x9C-0x9F */
+	0xAB, 0x64, 0xAB, 0x65, 0xE7, 0xE3, 0xAB, 0x66, /* 0xA0-0xA3 */
+	0xAB, 0x67, 0xAB, 0x68, 0xAB, 0x69, 0xAB, 0x6A, /* 0xA4-0xA7 */
+	0xAB, 0x6B, 0xCD, 0xE6, 0xAB, 0x6C, 0xC3, 0xB5, /* 0xA8-0xAB */
+	0xAB, 0x6D, 0xAB, 0x6E, 0xE7, 0xE2, 0xBB, 0xB7, /* 0xAC-0xAF */
+	0xCF, 0xD6, 0xAB, 0x6F, 0xC1, 0xE1, 0xE7, 0xE9, /* 0xB0-0xB3 */
+	0xAB, 0x70, 0xAB, 0x71, 0xAB, 0x72, 0xE7, 0xE8, /* 0xB4-0xB7 */
+	0xAB, 0x73, 0xAB, 0x74, 0xE7, 0xF4, 0xB2, 0xA3, /* 0xB8-0xBB */
+	0xAB, 0x75, 0xAB, 0x76, 0xAB, 0x77, 0xAB, 0x78, /* 0xBC-0xBF */
+	0xE7, 0xEA, 0xAB, 0x79, 0xE7, 0xE6, 0xAB, 0x7A, /* 0xC0-0xC3 */
+	0xAB, 0x7B, 0xAB, 0x7C, 0xAB, 0x7D, 0xAB, 0x7E, /* 0xC4-0xC7 */
+	0xE7, 0xEC, 0xE7, 0xEB, 0xC9, 0xBA, 0xAB, 0x80, /* 0xC8-0xCB */
+	0xAB, 0x81, 0xD5, 0xE4, 0xAB, 0x82, 0xE7, 0xE5, /* 0xCC-0xCF */
+	0xB7, 0xA9, 0xE7, 0xE7, 0xAB, 0x83, 0xAB, 0x84, /* 0xD0-0xD3 */
+	0xAB, 0x85, 0xAB, 0x86, 0xAB, 0x87, 0xAB, 0x88, /* 0xD4-0xD7 */
+	0xAB, 0x89, 0xE7, 0xEE, 0xAB, 0x8A, 0xAB, 0x8B, /* 0xD8-0xDB */
+	0xAB, 0x8C, 0xAB, 0x8D, 0xE7, 0xF3, 0xAB, 0x8E, /* 0xDC-0xDF */
+	0xD6, 0xE9, 0xAB, 0x8F, 0xAB, 0x90, 0xAB, 0x91, /* 0xE0-0xE3 */
+	0xAB, 0x92, 0xE7, 0xED, 0xAB, 0x93, 0xE7, 0xF2, /* 0xE4-0xE7 */
+	0xAB, 0x94, 0xE7, 0xF1, 0xAB, 0x95, 0xAB, 0x96, /* 0xE8-0xEB */
+	0xAB, 0x97, 0xB0, 0xE0, 0xAB, 0x98, 0xAB, 0x99, /* 0xEC-0xEF */
+	0xAB, 0x9A, 0xAB, 0x9B, 0xE7, 0xF5, 0xAB, 0x9C, /* 0xF0-0xF3 */
+	0xAB, 0x9D, 0xAB, 0x9E, 0xAB, 0x9F, 0xAB, 0xA0, /* 0xF4-0xF7 */
+	0xAC, 0x40, 0xAC, 0x41, 0xAC, 0x42, 0xAC, 0x43, /* 0xF8-0xFB */
+	0xAC, 0x44, 0xAC, 0x45, 0xAC, 0x46, 0xAC, 0x47, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_74[512] = {
+	0xAC, 0x48, 0xAC, 0x49, 0xAC, 0x4A, 0xC7, 0xF2, /* 0x00-0x03 */
+	0xAC, 0x4B, 0xC0, 0xC5, 0xC0, 0xED, 0xAC, 0x4C, /* 0x04-0x07 */
+	0xAC, 0x4D, 0xC1, 0xF0, 0xE7, 0xF0, 0xAC, 0x4E, /* 0x08-0x0B */
+	0xAC, 0x4F, 0xAC, 0x50, 0xAC, 0x51, 0xE7, 0xF6, /* 0x0C-0x0F */
+	0xCB, 0xF6, 0xAC, 0x52, 0xAC, 0x53, 0xAC, 0x54, /* 0x10-0x13 */
+	0xAC, 0x55, 0xAC, 0x56, 0xAC, 0x57, 0xAC, 0x58, /* 0x14-0x17 */
+	0xAC, 0x59, 0xAC, 0x5A, 0xE8, 0xA2, 0xE8, 0xA1, /* 0x18-0x1B */
+	0xAC, 0x5B, 0xAC, 0x5C, 0xAC, 0x5D, 0xAC, 0x5E, /* 0x1C-0x1F */
+	0xAC, 0x5F, 0xAC, 0x60, 0xD7, 0xC1, 0xAC, 0x61, /* 0x20-0x23 */
+	0xAC, 0x62, 0xE7, 0xFA, 0xE7, 0xF9, 0xAC, 0x63, /* 0x24-0x27 */
+	0xE7, 0xFB, 0xAC, 0x64, 0xE7, 0xF7, 0xAC, 0x65, /* 0x28-0x2B */
+	0xE7, 0xFE, 0xAC, 0x66, 0xE7, 0xFD, 0xAC, 0x67, /* 0x2C-0x2F */
+	0xE7, 0xFC, 0xAC, 0x68, 0xAC, 0x69, 0xC1, 0xD5, /* 0x30-0x33 */
+	0xC7, 0xD9, 0xC5, 0xFD, 0xC5, 0xC3, 0xAC, 0x6A, /* 0x34-0x37 */
+	0xAC, 0x6B, 0xAC, 0x6C, 0xAC, 0x6D, 0xAC, 0x6E, /* 0x38-0x3B */
+	0xC7, 0xED, 0xAC, 0x6F, 0xAC, 0x70, 0xAC, 0x71, /* 0x3C-0x3F */
+	0xAC, 0x72, 0xE8, 0xA3, 0xAC, 0x73, 0xAC, 0x74, /* 0x40-0x43 */
+	0xAC, 0x75, 0xAC, 0x76, 0xAC, 0x77, 0xAC, 0x78, /* 0x44-0x47 */
+	0xAC, 0x79, 0xAC, 0x7A, 0xAC, 0x7B, 0xAC, 0x7C, /* 0x48-0x4B */
+	0xAC, 0x7D, 0xAC, 0x7E, 0xAC, 0x80, 0xAC, 0x81, /* 0x4C-0x4F */
+	0xAC, 0x82, 0xAC, 0x83, 0xAC, 0x84, 0xAC, 0x85, /* 0x50-0x53 */
+	0xAC, 0x86, 0xE8, 0xA6, 0xAC, 0x87, 0xE8, 0xA5, /* 0x54-0x57 */
+	0xAC, 0x88, 0xE8, 0xA7, 0xBA, 0xF7, 0xE7, 0xF8, /* 0x58-0x5B */
+	0xE8, 0xA4, 0xAC, 0x89, 0xC8, 0xF0, 0xC9, 0xAA, /* 0x5C-0x5F */
+	0xAC, 0x8A, 0xAC, 0x8B, 0xAC, 0x8C, 0xAC, 0x8D, /* 0x60-0x63 */
+	0xAC, 0x8E, 0xAC, 0x8F, 0xAC, 0x90, 0xAC, 0x91, /* 0x64-0x67 */
+	0xAC, 0x92, 0xAC, 0x93, 0xAC, 0x94, 0xAC, 0x95, /* 0x68-0x6B */
+	0xAC, 0x96, 0xE8, 0xA9, 0xAC, 0x97, 0xAC, 0x98, /* 0x6C-0x6F */
+	0xB9, 0xE5, 0xAC, 0x99, 0xAC, 0x9A, 0xAC, 0x9B, /* 0x70-0x73 */
+	0xAC, 0x9C, 0xAC, 0x9D, 0xD1, 0xFE, 0xE8, 0xA8, /* 0x74-0x77 */
+	0xAC, 0x9E, 0xAC, 0x9F, 0xAC, 0xA0, 0xAD, 0x40, /* 0x78-0x7B */
+	0xAD, 0x41, 0xAD, 0x42, 0xE8, 0xAA, 0xAD, 0x43, /* 0x7C-0x7F */
+	
+	0xE8, 0xAD, 0xE8, 0xAE, 0xAD, 0x44, 0xC1, 0xA7, /* 0x80-0x83 */
+	0xAD, 0x45, 0xAD, 0x46, 0xAD, 0x47, 0xE8, 0xAF, /* 0x84-0x87 */
+	0xAD, 0x48, 0xAD, 0x49, 0xAD, 0x4A, 0xE8, 0xB0, /* 0x88-0x8B */
+	0xAD, 0x4B, 0xAD, 0x4C, 0xE8, 0xAC, 0xAD, 0x4D, /* 0x8C-0x8F */
+	0xE8, 0xB4, 0xAD, 0x4E, 0xAD, 0x4F, 0xAD, 0x50, /* 0x90-0x93 */
+	0xAD, 0x51, 0xAD, 0x52, 0xAD, 0x53, 0xAD, 0x54, /* 0x94-0x97 */
+	0xAD, 0x55, 0xAD, 0x56, 0xAD, 0x57, 0xAD, 0x58, /* 0x98-0x9B */
+	0xE8, 0xAB, 0xAD, 0x59, 0xE8, 0xB1, 0xAD, 0x5A, /* 0x9C-0x9F */
+	0xAD, 0x5B, 0xAD, 0x5C, 0xAD, 0x5D, 0xAD, 0x5E, /* 0xA0-0xA3 */
+	0xAD, 0x5F, 0xAD, 0x60, 0xAD, 0x61, 0xE8, 0xB5, /* 0xA4-0xA7 */
+	0xE8, 0xB2, 0xE8, 0xB3, 0xAD, 0x62, 0xAD, 0x63, /* 0xA8-0xAB */
+	0xAD, 0x64, 0xAD, 0x65, 0xAD, 0x66, 0xAD, 0x67, /* 0xAC-0xAF */
+	0xAD, 0x68, 0xAD, 0x69, 0xAD, 0x6A, 0xAD, 0x6B, /* 0xB0-0xB3 */
+	0xAD, 0x6C, 0xAD, 0x6D, 0xAD, 0x6E, 0xAD, 0x6F, /* 0xB4-0xB7 */
+	0xAD, 0x70, 0xAD, 0x71, 0xE8, 0xB7, 0xAD, 0x72, /* 0xB8-0xBB */
+	0xAD, 0x73, 0xAD, 0x74, 0xAD, 0x75, 0xAD, 0x76, /* 0xBC-0xBF */
+	0xAD, 0x77, 0xAD, 0x78, 0xAD, 0x79, 0xAD, 0x7A, /* 0xC0-0xC3 */
+	0xAD, 0x7B, 0xAD, 0x7C, 0xAD, 0x7D, 0xAD, 0x7E, /* 0xC4-0xC7 */
+	0xAD, 0x80, 0xAD, 0x81, 0xAD, 0x82, 0xAD, 0x83, /* 0xC8-0xCB */
+	0xAD, 0x84, 0xAD, 0x85, 0xAD, 0x86, 0xAD, 0x87, /* 0xCC-0xCF */
+	0xAD, 0x88, 0xAD, 0x89, 0xE8, 0xB6, 0xAD, 0x8A, /* 0xD0-0xD3 */
+	0xAD, 0x8B, 0xAD, 0x8C, 0xAD, 0x8D, 0xAD, 0x8E, /* 0xD4-0xD7 */
+	0xAD, 0x8F, 0xAD, 0x90, 0xAD, 0x91, 0xAD, 0x92, /* 0xD8-0xDB */
+	0xB9, 0xCF, 0xAD, 0x93, 0xF0, 0xAC, 0xAD, 0x94, /* 0xDC-0xDF */
+	0xF0, 0xAD, 0xAD, 0x95, 0xC6, 0xB0, 0xB0, 0xEA, /* 0xE0-0xE3 */
+	0xC8, 0xBF, 0xAD, 0x96, 0xCD, 0xDF, 0xAD, 0x97, /* 0xE4-0xE7 */
+	0xAD, 0x98, 0xAD, 0x99, 0xAD, 0x9A, 0xAD, 0x9B, /* 0xE8-0xEB */
+	0xAD, 0x9C, 0xAD, 0x9D, 0xCE, 0xCD, 0xEA, 0xB1, /* 0xEC-0xEF */
+	0xAD, 0x9E, 0xAD, 0x9F, 0xAD, 0xA0, 0xAE, 0x40, /* 0xF0-0xF3 */
+	0xEA, 0xB2, 0xAE, 0x41, 0xC6, 0xBF, 0xB4, 0xC9, /* 0xF4-0xF7 */
+	0xAE, 0x42, 0xAE, 0x43, 0xAE, 0x44, 0xAE, 0x45, /* 0xF8-0xFB */
+	0xAE, 0x46, 0xAE, 0x47, 0xAE, 0x48, 0xEA, 0xB3, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_75[512] = {
+	0xAE, 0x49, 0xAE, 0x4A, 0xAE, 0x4B, 0xAE, 0x4C, /* 0x00-0x03 */
+	0xD5, 0xE7, 0xAE, 0x4D, 0xAE, 0x4E, 0xAE, 0x4F, /* 0x04-0x07 */
+	0xAE, 0x50, 0xAE, 0x51, 0xAE, 0x52, 0xAE, 0x53, /* 0x08-0x0B */
+	0xAE, 0x54, 0xDD, 0xF9, 0xAE, 0x55, 0xEA, 0xB4, /* 0x0C-0x0F */
+	0xAE, 0x56, 0xEA, 0xB5, 0xAE, 0x57, 0xEA, 0xB6, /* 0x10-0x13 */
+	0xAE, 0x58, 0xAE, 0x59, 0xAE, 0x5A, 0xAE, 0x5B, /* 0x14-0x17 */
+	0xB8, 0xCA, 0xDF, 0xB0, 0xC9, 0xF5, 0xAE, 0x5C, /* 0x18-0x1B */
+	0xCC, 0xF0, 0xAE, 0x5D, 0xAE, 0x5E, 0xC9, 0xFA, /* 0x1C-0x1F */
+	0xAE, 0x5F, 0xAE, 0x60, 0xAE, 0x61, 0xAE, 0x62, /* 0x20-0x23 */
+	0xAE, 0x63, 0xC9, 0xFB, 0xAE, 0x64, 0xAE, 0x65, /* 0x24-0x27 */
+	0xD3, 0xC3, 0xCB, 0xA6, 0xAE, 0x66, 0xB8, 0xA6, /* 0x28-0x2B */
+	0xF0, 0xAE, 0xB1, 0xC2, 0xAE, 0x67, 0xE5, 0xB8, /* 0x2C-0x2F */
+	0xCC, 0xEF, 0xD3, 0xC9, 0xBC, 0xD7, 0xC9, 0xEA, /* 0x30-0x33 */
+	0xAE, 0x68, 0xB5, 0xE7, 0xAE, 0x69, 0xC4, 0xD0, /* 0x34-0x37 */
+	0xB5, 0xE9, 0xAE, 0x6A, 0xEE, 0xAE, 0xBB, 0xAD, /* 0x38-0x3B */
+	0xAE, 0x6B, 0xAE, 0x6C, 0xE7, 0xDE, 0xAE, 0x6D, /* 0x3C-0x3F */
+	0xEE, 0xAF, 0xAE, 0x6E, 0xAE, 0x6F, 0xAE, 0x70, /* 0x40-0x43 */
+	0xAE, 0x71, 0xB3, 0xA9, 0xAE, 0x72, 0xAE, 0x73, /* 0x44-0x47 */
+	0xEE, 0xB2, 0xAE, 0x74, 0xAE, 0x75, 0xEE, 0xB1, /* 0x48-0x4B */
+	0xBD, 0xE7, 0xAE, 0x76, 0xEE, 0xB0, 0xCE, 0xB7, /* 0x4C-0x4F */
+	0xAE, 0x77, 0xAE, 0x78, 0xAE, 0x79, 0xAE, 0x7A, /* 0x50-0x53 */
+	0xC5, 0xCF, 0xAE, 0x7B, 0xAE, 0x7C, 0xAE, 0x7D, /* 0x54-0x57 */
+	0xAE, 0x7E, 0xC1, 0xF4, 0xDB, 0xCE, 0xEE, 0xB3, /* 0x58-0x5B */
+	0xD0, 0xF3, 0xAE, 0x80, 0xAE, 0x81, 0xAE, 0x82, /* 0x5C-0x5F */
+	0xAE, 0x83, 0xAE, 0x84, 0xAE, 0x85, 0xAE, 0x86, /* 0x60-0x63 */
+	0xAE, 0x87, 0xC2, 0xD4, 0xC6, 0xE8, 0xAE, 0x88, /* 0x64-0x67 */
+	0xAE, 0x89, 0xAE, 0x8A, 0xB7, 0xAC, 0xAE, 0x8B, /* 0x68-0x6B */
+	0xAE, 0x8C, 0xAE, 0x8D, 0xAE, 0x8E, 0xAE, 0x8F, /* 0x6C-0x6F */
+	0xAE, 0x90, 0xAE, 0x91, 0xEE, 0xB4, 0xAE, 0x92, /* 0x70-0x73 */
+	0xB3, 0xEB, 0xAE, 0x93, 0xAE, 0x94, 0xAE, 0x95, /* 0x74-0x77 */
+	0xBB, 0xFB, 0xEE, 0xB5, 0xAE, 0x96, 0xAE, 0x97, /* 0x78-0x7B */
+	0xAE, 0x98, 0xAE, 0x99, 0xAE, 0x9A, 0xE7, 0xDC, /* 0x7C-0x7F */
+	
+	0xAE, 0x9B, 0xAE, 0x9C, 0xAE, 0x9D, 0xEE, 0xB6, /* 0x80-0x83 */
+	0xAE, 0x9E, 0xAE, 0x9F, 0xBD, 0xAE, 0xAE, 0xA0, /* 0x84-0x87 */
+	0xAF, 0x40, 0xAF, 0x41, 0xAF, 0x42, 0xF1, 0xE2, /* 0x88-0x8B */
+	0xAF, 0x43, 0xAF, 0x44, 0xAF, 0x45, 0xCA, 0xE8, /* 0x8C-0x8F */
+	0xAF, 0x46, 0xD2, 0xC9, 0xF0, 0xDA, 0xAF, 0x47, /* 0x90-0x93 */
+	0xF0, 0xDB, 0xAF, 0x48, 0xF0, 0xDC, 0xC1, 0xC6, /* 0x94-0x97 */
+	0xAF, 0x49, 0xB8, 0xED, 0xBE, 0xCE, 0xAF, 0x4A, /* 0x98-0x9B */
+	0xAF, 0x4B, 0xF0, 0xDE, 0xAF, 0x4C, 0xC5, 0xB1, /* 0x9C-0x9F */
+	0xF0, 0xDD, 0xD1, 0xF1, 0xAF, 0x4D, 0xF0, 0xE0, /* 0xA0-0xA3 */
+	0xB0, 0xCC, 0xBD, 0xEA, 0xAF, 0x4E, 0xAF, 0x4F, /* 0xA4-0xA7 */
+	0xAF, 0x50, 0xAF, 0x51, 0xAF, 0x52, 0xD2, 0xDF, /* 0xA8-0xAB */
+	0xF0, 0xDF, 0xAF, 0x53, 0xB4, 0xAF, 0xB7, 0xE8, /* 0xAC-0xAF */
+	0xF0, 0xE6, 0xF0, 0xE5, 0xC6, 0xA3, 0xF0, 0xE1, /* 0xB0-0xB3 */
+	0xF0, 0xE2, 0xB4, 0xC3, 0xAF, 0x54, 0xAF, 0x55, /* 0xB4-0xB7 */
+	0xF0, 0xE3, 0xD5, 0xEE, 0xAF, 0x56, 0xAF, 0x57, /* 0xB8-0xBB */
+	0xCC, 0xDB, 0xBE, 0xD2, 0xBC, 0xB2, 0xAF, 0x58, /* 0xBC-0xBF */
+	0xAF, 0x59, 0xAF, 0x5A, 0xF0, 0xE8, 0xF0, 0xE7, /* 0xC0-0xC3 */
+	0xF0, 0xE4, 0xB2, 0xA1, 0xAF, 0x5B, 0xD6, 0xA2, /* 0xC4-0xC7 */
+	0xD3, 0xB8, 0xBE, 0xB7, 0xC8, 0xAC, 0xAF, 0x5C, /* 0xC8-0xCB */
+	0xAF, 0x5D, 0xF0, 0xEA, 0xAF, 0x5E, 0xAF, 0x5F, /* 0xCC-0xCF */
+	0xAF, 0x60, 0xAF, 0x61, 0xD1, 0xF7, 0xAF, 0x62, /* 0xD0-0xD3 */
+	0xD6, 0xCC, 0xBA, 0xDB, 0xF0, 0xE9, 0xAF, 0x63, /* 0xD4-0xD7 */
+	0xB6, 0xBB, 0xAF, 0x64, 0xAF, 0x65, 0xCD, 0xB4, /* 0xD8-0xDB */
+	0xAF, 0x66, 0xAF, 0x67, 0xC6, 0xA6, 0xAF, 0x68, /* 0xDC-0xDF */
+	0xAF, 0x69, 0xAF, 0x6A, 0xC1, 0xA1, 0xF0, 0xEB, /* 0xE0-0xE3 */
+	0xF0, 0xEE, 0xAF, 0x6B, 0xF0, 0xED, 0xF0, 0xF0, /* 0xE4-0xE7 */
+	0xF0, 0xEC, 0xAF, 0x6C, 0xBB, 0xBE, 0xF0, 0xEF, /* 0xE8-0xEB */
+	0xAF, 0x6D, 0xAF, 0x6E, 0xAF, 0x6F, 0xAF, 0x70, /* 0xEC-0xEF */
+	0xCC, 0xB5, 0xF0, 0xF2, 0xAF, 0x71, 0xAF, 0x72, /* 0xF0-0xF3 */
+	0xB3, 0xD5, 0xAF, 0x73, 0xAF, 0x74, 0xAF, 0x75, /* 0xF4-0xF7 */
+	0xAF, 0x76, 0xB1, 0xD4, 0xAF, 0x77, 0xAF, 0x78, /* 0xF8-0xFB */
+	0xF0, 0xF3, 0xAF, 0x79, 0xAF, 0x7A, 0xF0, 0xF4, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_76[512] = {
+	0xF0, 0xF6, 0xB4, 0xE1, 0xAF, 0x7B, 0xF0, 0xF1, /* 0x00-0x03 */
+	0xAF, 0x7C, 0xF0, 0xF7, 0xAF, 0x7D, 0xAF, 0x7E, /* 0x04-0x07 */
+	0xAF, 0x80, 0xAF, 0x81, 0xF0, 0xFA, 0xAF, 0x82, /* 0x08-0x0B */
+	0xF0, 0xF8, 0xAF, 0x83, 0xAF, 0x84, 0xAF, 0x85, /* 0x0C-0x0F */
+	0xF0, 0xF5, 0xAF, 0x86, 0xAF, 0x87, 0xAF, 0x88, /* 0x10-0x13 */
+	0xAF, 0x89, 0xF0, 0xFD, 0xAF, 0x8A, 0xF0, 0xF9, /* 0x14-0x17 */
+	0xF0, 0xFC, 0xF0, 0xFE, 0xAF, 0x8B, 0xF1, 0xA1, /* 0x18-0x1B */
+	0xAF, 0x8C, 0xAF, 0x8D, 0xAF, 0x8E, 0xCE, 0xC1, /* 0x1C-0x1F */
+	0xF1, 0xA4, 0xAF, 0x8F, 0xF1, 0xA3, 0xAF, 0x90, /* 0x20-0x23 */
+	0xC1, 0xF6, 0xF0, 0xFB, 0xCA, 0xDD, 0xAF, 0x91, /* 0x24-0x27 */
+	0xAF, 0x92, 0xB4, 0xF1, 0xB1, 0xF1, 0xCC, 0xB1, /* 0x28-0x2B */
+	0xAF, 0x93, 0xF1, 0xA6, 0xAF, 0x94, 0xAF, 0x95, /* 0x2C-0x2F */
+	0xF1, 0xA7, 0xAF, 0x96, 0xAF, 0x97, 0xF1, 0xAC, /* 0x30-0x33 */
+	0xD5, 0xCE, 0xF1, 0xA9, 0xAF, 0x98, 0xAF, 0x99, /* 0x34-0x37 */
+	0xC8, 0xB3, 0xAF, 0x9A, 0xAF, 0x9B, 0xAF, 0x9C, /* 0x38-0x3B */
+	0xF1, 0xA2, 0xAF, 0x9D, 0xF1, 0xAB, 0xF1, 0xA8, /* 0x3C-0x3F */
+	0xF1, 0xA5, 0xAF, 0x9E, 0xAF, 0x9F, 0xF1, 0xAA, /* 0x40-0x43 */
+	0xAF, 0xA0, 0xB0, 0x40, 0xB0, 0x41, 0xB0, 0x42, /* 0x44-0x47 */
+	0xB0, 0x43, 0xB0, 0x44, 0xB0, 0x45, 0xB0, 0x46, /* 0x48-0x4B */
+	0xB0, 0xA9, 0xF1, 0xAD, 0xB0, 0x47, 0xB0, 0x48, /* 0x4C-0x4F */
+	0xB0, 0x49, 0xB0, 0x4A, 0xB0, 0x4B, 0xB0, 0x4C, /* 0x50-0x53 */
+	0xF1, 0xAF, 0xB0, 0x4D, 0xF1, 0xB1, 0xB0, 0x4E, /* 0x54-0x57 */
+	0xB0, 0x4F, 0xB0, 0x50, 0xB0, 0x51, 0xB0, 0x52, /* 0x58-0x5B */
+	0xF1, 0xB0, 0xB0, 0x53, 0xF1, 0xAE, 0xB0, 0x54, /* 0x5C-0x5F */
+	0xB0, 0x55, 0xB0, 0x56, 0xB0, 0x57, 0xD1, 0xA2, /* 0x60-0x63 */
+	0xB0, 0x58, 0xB0, 0x59, 0xB0, 0x5A, 0xB0, 0x5B, /* 0x64-0x67 */
+	0xB0, 0x5C, 0xB0, 0x5D, 0xB0, 0x5E, 0xF1, 0xB2, /* 0x68-0x6B */
+	0xB0, 0x5F, 0xB0, 0x60, 0xB0, 0x61, 0xF1, 0xB3, /* 0x6C-0x6F */
+	0xB0, 0x62, 0xB0, 0x63, 0xB0, 0x64, 0xB0, 0x65, /* 0x70-0x73 */
+	0xB0, 0x66, 0xB0, 0x67, 0xB0, 0x68, 0xB0, 0x69, /* 0x74-0x77 */
+	0xB9, 0xEF, 0xB0, 0x6A, 0xB0, 0x6B, 0xB5, 0xC7, /* 0x78-0x7B */
+	0xB0, 0x6C, 0xB0, 0xD7, 0xB0, 0xD9, 0xB0, 0x6D, /* 0x7C-0x7F */
+	
+	0xB0, 0x6E, 0xB0, 0x6F, 0xD4, 0xED, 0xB0, 0x70, /* 0x80-0x83 */
+	0xB5, 0xC4, 0xB0, 0x71, 0xBD, 0xD4, 0xBB, 0xCA, /* 0x84-0x87 */
+	0xF0, 0xA7, 0xB0, 0x72, 0xB0, 0x73, 0xB8, 0xDE, /* 0x88-0x8B */
+	0xB0, 0x74, 0xB0, 0x75, 0xF0, 0xA8, 0xB0, 0x76, /* 0x8C-0x8F */
+	0xB0, 0x77, 0xB0, 0xA8, 0xB0, 0x78, 0xF0, 0xA9, /* 0x90-0x93 */
+	0xB0, 0x79, 0xB0, 0x7A, 0xCD, 0xEE, 0xB0, 0x7B, /* 0x94-0x97 */
+	0xB0, 0x7C, 0xF0, 0xAA, 0xB0, 0x7D, 0xB0, 0x7E, /* 0x98-0x9B */
+	0xB0, 0x80, 0xB0, 0x81, 0xB0, 0x82, 0xB0, 0x83, /* 0x9C-0x9F */
+	0xB0, 0x84, 0xB0, 0x85, 0xB0, 0x86, 0xB0, 0x87, /* 0xA0-0xA3 */
+	0xF0, 0xAB, 0xB0, 0x88, 0xB0, 0x89, 0xB0, 0x8A, /* 0xA4-0xA7 */
+	0xB0, 0x8B, 0xB0, 0x8C, 0xB0, 0x8D, 0xB0, 0x8E, /* 0xA8-0xAB */
+	0xB0, 0x8F, 0xB0, 0x90, 0xC6, 0xA4, 0xB0, 0x91, /* 0xAC-0xAF */
+	0xB0, 0x92, 0xD6, 0xE5, 0xF1, 0xE4, 0xB0, 0x93, /* 0xB0-0xB3 */
+	0xF1, 0xE5, 0xB0, 0x94, 0xB0, 0x95, 0xB0, 0x96, /* 0xB4-0xB7 */
+	0xB0, 0x97, 0xB0, 0x98, 0xB0, 0x99, 0xB0, 0x9A, /* 0xB8-0xBB */
+	0xB0, 0x9B, 0xB0, 0x9C, 0xB0, 0x9D, 0xC3, 0xF3, /* 0xBC-0xBF */
+	0xB0, 0x9E, 0xB0, 0x9F, 0xD3, 0xDB, 0xB0, 0xA0, /* 0xC0-0xC3 */
+	0xB1, 0x40, 0xD6, 0xD1, 0xC5, 0xE8, 0xB1, 0x41, /* 0xC4-0xC7 */
+	0xD3, 0xAF, 0xB1, 0x42, 0xD2, 0xE6, 0xB1, 0x43, /* 0xC8-0xCB */
+	0xB1, 0x44, 0xEE, 0xC1, 0xB0, 0xBB, 0xD5, 0xB5, /* 0xCC-0xCF */
+	0xD1, 0xCE, 0xBC, 0xE0, 0xBA, 0xD0, 0xB1, 0x45, /* 0xD0-0xD3 */
+	0xBF, 0xF8, 0xB1, 0x46, 0xB8, 0xC7, 0xB5, 0xC1, /* 0xD4-0xD7 */
+	0xC5, 0xCC, 0xB1, 0x47, 0xB1, 0x48, 0xCA, 0xA2, /* 0xD8-0xDB */
+	0xB1, 0x49, 0xB1, 0x4A, 0xB1, 0x4B, 0xC3, 0xCB, /* 0xDC-0xDF */
+	0xB1, 0x4C, 0xB1, 0x4D, 0xB1, 0x4E, 0xB1, 0x4F, /* 0xE0-0xE3 */
+	0xB1, 0x50, 0xEE, 0xC2, 0xB1, 0x51, 0xB1, 0x52, /* 0xE4-0xE7 */
+	0xB1, 0x53, 0xB1, 0x54, 0xB1, 0x55, 0xB1, 0x56, /* 0xE8-0xEB */
+	0xB1, 0x57, 0xB1, 0x58, 0xC4, 0xBF, 0xB6, 0xA2, /* 0xEC-0xEF */
+	0xB1, 0x59, 0xED, 0xEC, 0xC3, 0xA4, 0xB1, 0x5A, /* 0xF0-0xF3 */
+	0xD6, 0xB1, 0xB1, 0x5B, 0xB1, 0x5C, 0xB1, 0x5D, /* 0xF4-0xF7 */
+	0xCF, 0xE0, 0xED, 0xEF, 0xB1, 0x5E, 0xB1, 0x5F, /* 0xF8-0xFB */
+	0xC5, 0xCE, 0xB1, 0x60, 0xB6, 0xDC, 0xB1, 0x61, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_77[512] = {
+	0xB1, 0x62, 0xCA, 0xA1, 0xB1, 0x63, 0xB1, 0x64, /* 0x00-0x03 */
+	0xED, 0xED, 0xB1, 0x65, 0xB1, 0x66, 0xED, 0xF0, /* 0x04-0x07 */
+	0xED, 0xF1, 0xC3, 0xBC, 0xB1, 0x67, 0xBF, 0xB4, /* 0x08-0x0B */
+	0xB1, 0x68, 0xED, 0xEE, 0xB1, 0x69, 0xB1, 0x6A, /* 0x0C-0x0F */
+	0xB1, 0x6B, 0xB1, 0x6C, 0xB1, 0x6D, 0xB1, 0x6E, /* 0x10-0x13 */
+	0xB1, 0x6F, 0xB1, 0x70, 0xB1, 0x71, 0xB1, 0x72, /* 0x14-0x17 */
+	0xB1, 0x73, 0xED, 0xF4, 0xED, 0xF2, 0xB1, 0x74, /* 0x18-0x1B */
+	0xB1, 0x75, 0xB1, 0x76, 0xB1, 0x77, 0xD5, 0xE6, /* 0x1C-0x1F */
+	0xC3, 0xDF, 0xB1, 0x78, 0xED, 0xF3, 0xB1, 0x79, /* 0x20-0x23 */
+	0xB1, 0x7A, 0xB1, 0x7B, 0xED, 0xF6, 0xB1, 0x7C, /* 0x24-0x27 */
+	0xD5, 0xA3, 0xD1, 0xA3, 0xB1, 0x7D, 0xB1, 0x7E, /* 0x28-0x2B */
+	0xB1, 0x80, 0xED, 0xF5, 0xB1, 0x81, 0xC3, 0xD0, /* 0x2C-0x2F */
+	0xB1, 0x82, 0xB1, 0x83, 0xB1, 0x84, 0xB1, 0x85, /* 0x30-0x33 */
+	0xB1, 0x86, 0xED, 0xF7, 0xBF, 0xF4, 0xBE, 0xEC, /* 0x34-0x37 */
+	0xED, 0xF8, 0xB1, 0x87, 0xCC, 0xF7, 0xB1, 0x88, /* 0x38-0x3B */
+	0xD1, 0xDB, 0xB1, 0x89, 0xB1, 0x8A, 0xB1, 0x8B, /* 0x3C-0x3F */
+	0xD7, 0xC5, 0xD5, 0xF6, 0xB1, 0x8C, 0xED, 0xFC, /* 0x40-0x43 */
+	0xB1, 0x8D, 0xB1, 0x8E, 0xB1, 0x8F, 0xED, 0xFB, /* 0x44-0x47 */
+	0xB1, 0x90, 0xB1, 0x91, 0xB1, 0x92, 0xB1, 0x93, /* 0x48-0x4B */
+	0xB1, 0x94, 0xB1, 0x95, 0xB1, 0x96, 0xB1, 0x97, /* 0x4C-0x4F */
+	0xED, 0xF9, 0xED, 0xFA, 0xB1, 0x98, 0xB1, 0x99, /* 0x50-0x53 */
+	0xB1, 0x9A, 0xB1, 0x9B, 0xB1, 0x9C, 0xB1, 0x9D, /* 0x54-0x57 */
+	0xB1, 0x9E, 0xB1, 0x9F, 0xED, 0xFD, 0xBE, 0xA6, /* 0x58-0x5B */
+	0xB1, 0xA0, 0xB2, 0x40, 0xB2, 0x41, 0xB2, 0x42, /* 0x5C-0x5F */
+	0xB2, 0x43, 0xCB, 0xAF, 0xEE, 0xA1, 0xB6, 0xBD, /* 0x60-0x63 */
+	0xB2, 0x44, 0xEE, 0xA2, 0xC4, 0xC0, 0xB2, 0x45, /* 0x64-0x67 */
+	0xED, 0xFE, 0xB2, 0x46, 0xB2, 0x47, 0xBD, 0xDE, /* 0x68-0x6B */
+	0xB2, 0xC7, 0xB2, 0x48, 0xB2, 0x49, 0xB2, 0x4A, /* 0x6C-0x6F */
+	0xB2, 0x4B, 0xB2, 0x4C, 0xB2, 0x4D, 0xB2, 0x4E, /* 0x70-0x73 */
+	0xB2, 0x4F, 0xB2, 0x50, 0xB2, 0x51, 0xB2, 0x52, /* 0x74-0x77 */
+	0xB2, 0x53, 0xB6, 0xC3, 0xB2, 0x54, 0xB2, 0x55, /* 0x78-0x7B */
+	0xB2, 0x56, 0xEE, 0xA5, 0xD8, 0xBA, 0xEE, 0xA3, /* 0x7C-0x7F */
+	
+	0xEE, 0xA6, 0xB2, 0x57, 0xB2, 0x58, 0xB2, 0x59, /* 0x80-0x83 */
+	0xC3, 0xE9, 0xB3, 0xF2, 0xB2, 0x5A, 0xB2, 0x5B, /* 0x84-0x87 */
+	0xB2, 0x5C, 0xB2, 0x5D, 0xB2, 0x5E, 0xB2, 0x5F, /* 0x88-0x8B */
+	0xEE, 0xA7, 0xEE, 0xA4, 0xCF, 0xB9, 0xB2, 0x60, /* 0x8C-0x8F */
+	0xB2, 0x61, 0xEE, 0xA8, 0xC2, 0xF7, 0xB2, 0x62, /* 0x90-0x93 */
+	0xB2, 0x63, 0xB2, 0x64, 0xB2, 0x65, 0xB2, 0x66, /* 0x94-0x97 */
+	0xB2, 0x67, 0xB2, 0x68, 0xB2, 0x69, 0xB2, 0x6A, /* 0x98-0x9B */
+	0xB2, 0x6B, 0xB2, 0x6C, 0xB2, 0x6D, 0xEE, 0xA9, /* 0x9C-0x9F */
+	0xEE, 0xAA, 0xB2, 0x6E, 0xDE, 0xAB, 0xB2, 0x6F, /* 0xA0-0xA3 */
+	0xB2, 0x70, 0xC6, 0xB3, 0xB2, 0x71, 0xC7, 0xC6, /* 0xA4-0xA7 */
+	0xB2, 0x72, 0xD6, 0xF5, 0xB5, 0xC9, 0xB2, 0x73, /* 0xA8-0xAB */
+	0xCB, 0xB2, 0xB2, 0x74, 0xB2, 0x75, 0xB2, 0x76, /* 0xAC-0xAF */
+	0xEE, 0xAB, 0xB2, 0x77, 0xB2, 0x78, 0xCD, 0xAB, /* 0xB0-0xB3 */
+	0xB2, 0x79, 0xEE, 0xAC, 0xB2, 0x7A, 0xB2, 0x7B, /* 0xB4-0xB7 */
+	0xB2, 0x7C, 0xB2, 0x7D, 0xB2, 0x7E, 0xD5, 0xB0, /* 0xB8-0xBB */
+	0xB2, 0x80, 0xEE, 0xAD, 0xB2, 0x81, 0xF6, 0xC4, /* 0xBC-0xBF */
+	0xB2, 0x82, 0xB2, 0x83, 0xB2, 0x84, 0xB2, 0x85, /* 0xC0-0xC3 */
+	0xB2, 0x86, 0xB2, 0x87, 0xB2, 0x88, 0xB2, 0x89, /* 0xC4-0xC7 */
+	0xB2, 0x8A, 0xB2, 0x8B, 0xB2, 0x8C, 0xB2, 0x8D, /* 0xC8-0xCB */
+	0xB2, 0x8E, 0xDB, 0xC7, 0xB2, 0x8F, 0xB2, 0x90, /* 0xCC-0xCF */
+	0xB2, 0x91, 0xB2, 0x92, 0xB2, 0x93, 0xB2, 0x94, /* 0xD0-0xD3 */
+	0xB2, 0x95, 0xB2, 0x96, 0xB2, 0x97, 0xB4, 0xA3, /* 0xD4-0xD7 */
+	0xB2, 0x98, 0xB2, 0x99, 0xB2, 0x9A, 0xC3, 0xAC, /* 0xD8-0xDB */
+	0xF1, 0xE6, 0xB2, 0x9B, 0xB2, 0x9C, 0xB2, 0x9D, /* 0xDC-0xDF */
+	0xB2, 0x9E, 0xB2, 0x9F, 0xCA, 0xB8, 0xD2, 0xD3, /* 0xE0-0xE3 */
+	0xB2, 0xA0, 0xD6, 0xAA, 0xB3, 0x40, 0xEF, 0xF2, /* 0xE4-0xE7 */
+	0xB3, 0x41, 0xBE, 0xD8, 0xB3, 0x42, 0xBD, 0xC3, /* 0xE8-0xEB */
+	0xEF, 0xF3, 0xB6, 0xCC, 0xB0, 0xAB, 0xB3, 0x43, /* 0xEC-0xEF */
+	0xB3, 0x44, 0xB3, 0x45, 0xB3, 0x46, 0xCA, 0xAF, /* 0xF0-0xF3 */
+	0xB3, 0x47, 0xB3, 0x48, 0xED, 0xB6, 0xB3, 0x49, /* 0xF4-0xF7 */
+	0xED, 0xB7, 0xB3, 0x4A, 0xB3, 0x4B, 0xB3, 0x4C, /* 0xF8-0xFB */
+	0xB3, 0x4D, 0xCE, 0xF9, 0xB7, 0xAF, 0xBF, 0xF3, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_78[512] = {
+	0xED, 0xB8, 0xC2, 0xEB, 0xC9, 0xB0, 0xB3, 0x4E, /* 0x00-0x03 */
+	0xB3, 0x4F, 0xB3, 0x50, 0xB3, 0x51, 0xB3, 0x52, /* 0x04-0x07 */
+	0xB3, 0x53, 0xED, 0xB9, 0xB3, 0x54, 0xB3, 0x55, /* 0x08-0x0B */
+	0xC6, 0xF6, 0xBF, 0xB3, 0xB3, 0x56, 0xB3, 0x57, /* 0x0C-0x0F */
+	0xB3, 0x58, 0xED, 0xBC, 0xC5, 0xF8, 0xB3, 0x59, /* 0x10-0x13 */
+	0xD1, 0xD0, 0xB3, 0x5A, 0xD7, 0xA9, 0xED, 0xBA, /* 0x14-0x17 */
+	0xED, 0xBB, 0xB3, 0x5B, 0xD1, 0xE2, 0xB3, 0x5C, /* 0x18-0x1B */
+	0xED, 0xBF, 0xED, 0xC0, 0xB3, 0x5D, 0xED, 0xC4, /* 0x1C-0x1F */
+	0xB3, 0x5E, 0xB3, 0x5F, 0xB3, 0x60, 0xED, 0xC8, /* 0x20-0x23 */
+	0xB3, 0x61, 0xED, 0xC6, 0xED, 0xCE, 0xD5, 0xE8, /* 0x24-0x27 */
+	0xB3, 0x62, 0xED, 0xC9, 0xB3, 0x63, 0xB3, 0x64, /* 0x28-0x2B */
+	0xED, 0xC7, 0xED, 0xBE, 0xB3, 0x65, 0xB3, 0x66, /* 0x2C-0x2F */
+	0xC5, 0xE9, 0xB3, 0x67, 0xB3, 0x68, 0xB3, 0x69, /* 0x30-0x33 */
+	0xC6, 0xC6, 0xB3, 0x6A, 0xB3, 0x6B, 0xC9, 0xE9, /* 0x34-0x37 */
+	0xD4, 0xD2, 0xED, 0xC1, 0xED, 0xC2, 0xED, 0xC3, /* 0x38-0x3B */
+	0xED, 0xC5, 0xB3, 0x6C, 0xC0, 0xF9, 0xB3, 0x6D, /* 0x3C-0x3F */
+	0xB4, 0xA1, 0xB3, 0x6E, 0xB3, 0x6F, 0xB3, 0x70, /* 0x40-0x43 */
+	0xB3, 0x71, 0xB9, 0xE8, 0xB3, 0x72, 0xED, 0xD0, /* 0x44-0x47 */
+	0xB3, 0x73, 0xB3, 0x74, 0xB3, 0x75, 0xB3, 0x76, /* 0x48-0x4B */
+	0xED, 0xD1, 0xB3, 0x77, 0xED, 0xCA, 0xB3, 0x78, /* 0x4C-0x4F */
+	0xED, 0xCF, 0xB3, 0x79, 0xCE, 0xF8, 0xB3, 0x7A, /* 0x50-0x53 */
+	0xB3, 0x7B, 0xCB, 0xB6, 0xED, 0xCC, 0xED, 0xCD, /* 0x54-0x57 */
+	0xB3, 0x7C, 0xB3, 0x7D, 0xB3, 0x7E, 0xB3, 0x80, /* 0x58-0x5B */
+	0xB3, 0x81, 0xCF, 0xF5, 0xB3, 0x82, 0xB3, 0x83, /* 0x5C-0x5F */
+	0xB3, 0x84, 0xB3, 0x85, 0xB3, 0x86, 0xB3, 0x87, /* 0x60-0x63 */
+	0xB3, 0x88, 0xB3, 0x89, 0xB3, 0x8A, 0xB3, 0x8B, /* 0x64-0x67 */
+	0xB3, 0x8C, 0xB3, 0x8D, 0xED, 0xD2, 0xC1, 0xF2, /* 0x68-0x6B */
+	0xD3, 0xB2, 0xED, 0xCB, 0xC8, 0xB7, 0xB3, 0x8E, /* 0x6C-0x6F */
+	0xB3, 0x8F, 0xB3, 0x90, 0xB3, 0x91, 0xB3, 0x92, /* 0x70-0x73 */
+	0xB3, 0x93, 0xB3, 0x94, 0xB3, 0x95, 0xBC, 0xEF, /* 0x74-0x77 */
+	0xB3, 0x96, 0xB3, 0x97, 0xB3, 0x98, 0xB3, 0x99, /* 0x78-0x7B */
+	0xC5, 0xF0, 0xB3, 0x9A, 0xB3, 0x9B, 0xB3, 0x9C, /* 0x7C-0x7F */
+	
+	0xB3, 0x9D, 0xB3, 0x9E, 0xB3, 0x9F, 0xB3, 0xA0, /* 0x80-0x83 */
+	0xB4, 0x40, 0xB4, 0x41, 0xB4, 0x42, 0xED, 0xD6, /* 0x84-0x87 */
+	0xB4, 0x43, 0xB5, 0xEF, 0xB4, 0x44, 0xB4, 0x45, /* 0x88-0x8B */
+	0xC2, 0xB5, 0xB0, 0xAD, 0xCB, 0xE9, 0xB4, 0x46, /* 0x8C-0x8F */
+	0xB4, 0x47, 0xB1, 0xAE, 0xB4, 0x48, 0xED, 0xD4, /* 0x90-0x93 */
+	0xB4, 0x49, 0xB4, 0x4A, 0xB4, 0x4B, 0xCD, 0xEB, /* 0x94-0x97 */
+	0xB5, 0xE2, 0xB4, 0x4C, 0xED, 0xD5, 0xED, 0xD3, /* 0x98-0x9B */
+	0xED, 0xD7, 0xB4, 0x4D, 0xB4, 0x4E, 0xB5, 0xFA, /* 0x9C-0x9F */
+	0xB4, 0x4F, 0xED, 0xD8, 0xB4, 0x50, 0xED, 0xD9, /* 0xA0-0xA3 */
+	0xB4, 0x51, 0xED, 0xDC, 0xB4, 0x52, 0xB1, 0xCC, /* 0xA4-0xA7 */
+	0xB4, 0x53, 0xB4, 0x54, 0xB4, 0x55, 0xB4, 0x56, /* 0xA8-0xAB */
+	0xB4, 0x57, 0xB4, 0x58, 0xB4, 0x59, 0xB4, 0x5A, /* 0xAC-0xAF */
+	0xC5, 0xF6, 0xBC, 0xEE, 0xED, 0xDA, 0xCC, 0xBC, /* 0xB0-0xB3 */
+	0xB2, 0xEA, 0xB4, 0x5B, 0xB4, 0x5C, 0xB4, 0x5D, /* 0xB4-0xB7 */
+	0xB4, 0x5E, 0xED, 0xDB, 0xB4, 0x5F, 0xB4, 0x60, /* 0xB8-0xBB */
+	0xB4, 0x61, 0xB4, 0x62, 0xC4, 0xEB, 0xB4, 0x63, /* 0xBC-0xBF */
+	0xB4, 0x64, 0xB4, 0xC5, 0xB4, 0x65, 0xB4, 0x66, /* 0xC0-0xC3 */
+	0xB4, 0x67, 0xB0, 0xF5, 0xB4, 0x68, 0xB4, 0x69, /* 0xC4-0xC7 */
+	0xB4, 0x6A, 0xED, 0xDF, 0xC0, 0xDA, 0xB4, 0xE8, /* 0xC8-0xCB */
+	0xB4, 0x6B, 0xB4, 0x6C, 0xB4, 0x6D, 0xB4, 0x6E, /* 0xCC-0xCF */
+	0xC5, 0xCD, 0xB4, 0x6F, 0xB4, 0x70, 0xB4, 0x71, /* 0xD0-0xD3 */
+	0xED, 0xDD, 0xBF, 0xC4, 0xB4, 0x72, 0xB4, 0x73, /* 0xD4-0xD7 */
+	0xB4, 0x74, 0xED, 0xDE, 0xB4, 0x75, 0xB4, 0x76, /* 0xD8-0xDB */
+	0xB4, 0x77, 0xB4, 0x78, 0xB4, 0x79, 0xB4, 0x7A, /* 0xDC-0xDF */
+	0xB4, 0x7B, 0xB4, 0x7C, 0xB4, 0x7D, 0xB4, 0x7E, /* 0xE0-0xE3 */
+	0xB4, 0x80, 0xB4, 0x81, 0xB4, 0x82, 0xB4, 0x83, /* 0xE4-0xE7 */
+	0xC4, 0xA5, 0xB4, 0x84, 0xB4, 0x85, 0xB4, 0x86, /* 0xE8-0xEB */
+	0xED, 0xE0, 0xB4, 0x87, 0xB4, 0x88, 0xB4, 0x89, /* 0xEC-0xEF */
+	0xB4, 0x8A, 0xB4, 0x8B, 0xED, 0xE1, 0xB4, 0x8C, /* 0xF0-0xF3 */
+	0xED, 0xE3, 0xB4, 0x8D, 0xB4, 0x8E, 0xC1, 0xD7, /* 0xF4-0xF7 */
+	0xB4, 0x8F, 0xB4, 0x90, 0xBB, 0xC7, 0xB4, 0x91, /* 0xF8-0xFB */
+	0xB4, 0x92, 0xB4, 0x93, 0xB4, 0x94, 0xB4, 0x95, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_79[512] = {
+	0xB4, 0x96, 0xBD, 0xB8, 0xB4, 0x97, 0xB4, 0x98, /* 0x00-0x03 */
+	0xB4, 0x99, 0xED, 0xE2, 0xB4, 0x9A, 0xB4, 0x9B, /* 0x04-0x07 */
+	0xB4, 0x9C, 0xB4, 0x9D, 0xB4, 0x9E, 0xB4, 0x9F, /* 0x08-0x0B */
+	0xB4, 0xA0, 0xB5, 0x40, 0xB5, 0x41, 0xB5, 0x42, /* 0x0C-0x0F */
+	0xB5, 0x43, 0xB5, 0x44, 0xB5, 0x45, 0xED, 0xE4, /* 0x10-0x13 */
+	0xB5, 0x46, 0xB5, 0x47, 0xB5, 0x48, 0xB5, 0x49, /* 0x14-0x17 */
+	0xB5, 0x4A, 0xB5, 0x4B, 0xB5, 0x4C, 0xB5, 0x4D, /* 0x18-0x1B */
+	0xB5, 0x4E, 0xB5, 0x4F, 0xED, 0xE6, 0xB5, 0x50, /* 0x1C-0x1F */
+	0xB5, 0x51, 0xB5, 0x52, 0xB5, 0x53, 0xB5, 0x54, /* 0x20-0x23 */
+	0xED, 0xE5, 0xB5, 0x55, 0xB5, 0x56, 0xB5, 0x57, /* 0x24-0x27 */
+	0xB5, 0x58, 0xB5, 0x59, 0xB5, 0x5A, 0xB5, 0x5B, /* 0x28-0x2B */
+	0xB5, 0x5C, 0xB5, 0x5D, 0xB5, 0x5E, 0xB5, 0x5F, /* 0x2C-0x2F */
+	0xB5, 0x60, 0xB5, 0x61, 0xB5, 0x62, 0xB5, 0x63, /* 0x30-0x33 */
+	0xED, 0xE7, 0xB5, 0x64, 0xB5, 0x65, 0xB5, 0x66, /* 0x34-0x37 */
+	0xB5, 0x67, 0xB5, 0x68, 0xCA, 0xBE, 0xEC, 0xEA, /* 0x38-0x3B */
+	0xC0, 0xF1, 0xB5, 0x69, 0xC9, 0xE7, 0xB5, 0x6A, /* 0x3C-0x3F */
+	0xEC, 0xEB, 0xC6, 0xEE, 0xB5, 0x6B, 0xB5, 0x6C, /* 0x40-0x43 */
+	0xB5, 0x6D, 0xB5, 0x6E, 0xEC, 0xEC, 0xB5, 0x6F, /* 0x44-0x47 */
+	0xC6, 0xED, 0xEC, 0xED, 0xB5, 0x70, 0xB5, 0x71, /* 0x48-0x4B */
+	0xB5, 0x72, 0xB5, 0x73, 0xB5, 0x74, 0xB5, 0x75, /* 0x4C-0x4F */
+	0xB5, 0x76, 0xB5, 0x77, 0xB5, 0x78, 0xEC, 0xF0, /* 0x50-0x53 */
+	0xB5, 0x79, 0xB5, 0x7A, 0xD7, 0xE6, 0xEC, 0xF3, /* 0x54-0x57 */
+	0xB5, 0x7B, 0xB5, 0x7C, 0xEC, 0xF1, 0xEC, 0xEE, /* 0x58-0x5B */
+	0xEC, 0xEF, 0xD7, 0xA3, 0xC9, 0xF1, 0xCB, 0xEE, /* 0x5C-0x5F */
+	0xEC, 0xF4, 0xB5, 0x7D, 0xEC, 0xF2, 0xB5, 0x7E, /* 0x60-0x63 */
+	0xB5, 0x80, 0xCF, 0xE9, 0xB5, 0x81, 0xEC, 0xF6, /* 0x64-0x67 */
+	0xC6, 0xB1, 0xB5, 0x82, 0xB5, 0x83, 0xB5, 0x84, /* 0x68-0x6B */
+	0xB5, 0x85, 0xBC, 0xC0, 0xB5, 0x86, 0xEC, 0xF5, /* 0x6C-0x6F */
+	0xB5, 0x87, 0xB5, 0x88, 0xB5, 0x89, 0xB5, 0x8A, /* 0x70-0x73 */
+	0xB5, 0x8B, 0xB5, 0x8C, 0xB5, 0x8D, 0xB5, 0xBB, /* 0x74-0x77 */
+	0xBB, 0xF6, 0xB5, 0x8E, 0xEC, 0xF7, 0xB5, 0x8F, /* 0x78-0x7B */
+	0xB5, 0x90, 0xB5, 0x91, 0xB5, 0x92, 0xB5, 0x93, /* 0x7C-0x7F */
+	
+	0xD9, 0xF7, 0xBD, 0xFB, 0xB5, 0x94, 0xB5, 0x95, /* 0x80-0x83 */
+	0xC2, 0xBB, 0xEC, 0xF8, 0xB5, 0x96, 0xB5, 0x97, /* 0x84-0x87 */
+	0xB5, 0x98, 0xB5, 0x99, 0xEC, 0xF9, 0xB5, 0x9A, /* 0x88-0x8B */
+	0xB5, 0x9B, 0xB5, 0x9C, 0xB5, 0x9D, 0xB8, 0xA3, /* 0x8C-0x8F */
+	0xB5, 0x9E, 0xB5, 0x9F, 0xB5, 0xA0, 0xB6, 0x40, /* 0x90-0x93 */
+	0xB6, 0x41, 0xB6, 0x42, 0xB6, 0x43, 0xB6, 0x44, /* 0x94-0x97 */
+	0xB6, 0x45, 0xB6, 0x46, 0xEC, 0xFA, 0xB6, 0x47, /* 0x98-0x9B */
+	0xB6, 0x48, 0xB6, 0x49, 0xB6, 0x4A, 0xB6, 0x4B, /* 0x9C-0x9F */
+	0xB6, 0x4C, 0xB6, 0x4D, 0xB6, 0x4E, 0xB6, 0x4F, /* 0xA0-0xA3 */
+	0xB6, 0x50, 0xB6, 0x51, 0xB6, 0x52, 0xEC, 0xFB, /* 0xA4-0xA7 */
+	0xB6, 0x53, 0xB6, 0x54, 0xB6, 0x55, 0xB6, 0x56, /* 0xA8-0xAB */
+	0xB6, 0x57, 0xB6, 0x58, 0xB6, 0x59, 0xB6, 0x5A, /* 0xAC-0xAF */
+	0xB6, 0x5B, 0xB6, 0x5C, 0xB6, 0x5D, 0xEC, 0xFC, /* 0xB0-0xB3 */
+	0xB6, 0x5E, 0xB6, 0x5F, 0xB6, 0x60, 0xB6, 0x61, /* 0xB4-0xB7 */
+	0xB6, 0x62, 0xD3, 0xED, 0xD8, 0xAE, 0xC0, 0xEB, /* 0xB8-0xBB */
+	0xB6, 0x63, 0xC7, 0xDD, 0xBA, 0xCC, 0xB6, 0x64, /* 0xBC-0xBF */
+	0xD0, 0xE3, 0xCB, 0xBD, 0xB6, 0x65, 0xCD, 0xBA, /* 0xC0-0xC3 */
+	0xB6, 0x66, 0xB6, 0x67, 0xB8, 0xD1, 0xB6, 0x68, /* 0xC4-0xC7 */
+	0xB6, 0x69, 0xB1, 0xFC, 0xB6, 0x6A, 0xC7, 0xEF, /* 0xC8-0xCB */
+	0xB6, 0x6B, 0xD6, 0xD6, 0xB6, 0x6C, 0xB6, 0x6D, /* 0xCC-0xCF */
+	0xB6, 0x6E, 0xBF, 0xC6, 0xC3, 0xEB, 0xB6, 0x6F, /* 0xD0-0xD3 */
+	0xB6, 0x70, 0xEF, 0xF5, 0xB6, 0x71, 0xB6, 0x72, /* 0xD4-0xD7 */
+	0xC3, 0xD8, 0xB6, 0x73, 0xB6, 0x74, 0xB6, 0x75, /* 0xD8-0xDB */
+	0xB6, 0x76, 0xB6, 0x77, 0xB6, 0x78, 0xD7, 0xE2, /* 0xDC-0xDF */
+	0xB6, 0x79, 0xB6, 0x7A, 0xB6, 0x7B, 0xEF, 0xF7, /* 0xE0-0xE3 */
+	0xB3, 0xD3, 0xB6, 0x7C, 0xC7, 0xD8, 0xD1, 0xED, /* 0xE4-0xE7 */
+	0xB6, 0x7D, 0xD6, 0xC8, 0xB6, 0x7E, 0xEF, 0xF8, /* 0xE8-0xEB */
+	0xB6, 0x80, 0xEF, 0xF6, 0xB6, 0x81, 0xBB, 0xFD, /* 0xEC-0xEF */
+	0xB3, 0xC6, 0xB6, 0x82, 0xB6, 0x83, 0xB6, 0x84, /* 0xF0-0xF3 */
+	0xB6, 0x85, 0xB6, 0x86, 0xB6, 0x87, 0xB6, 0x88, /* 0xF4-0xF7 */
+	0xBD, 0xD5, 0xB6, 0x89, 0xB6, 0x8A, 0xD2, 0xC6, /* 0xF8-0xFB */
+	0xB6, 0x8B, 0xBB, 0xE0, 0xB6, 0x8C, 0xB6, 0x8D, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_7A[512] = {
+	0xCF, 0xA1, 0xB6, 0x8E, 0xEF, 0xFC, 0xEF, 0xFB, /* 0x00-0x03 */
+	0xB6, 0x8F, 0xB6, 0x90, 0xEF, 0xF9, 0xB6, 0x91, /* 0x04-0x07 */
+	0xB6, 0x92, 0xB6, 0x93, 0xB6, 0x94, 0xB3, 0xCC, /* 0x08-0x0B */
+	0xB6, 0x95, 0xC9, 0xD4, 0xCB, 0xB0, 0xB6, 0x96, /* 0x0C-0x0F */
+	0xB6, 0x97, 0xB6, 0x98, 0xB6, 0x99, 0xB6, 0x9A, /* 0x10-0x13 */
+	0xEF, 0xFE, 0xB6, 0x9B, 0xB6, 0x9C, 0xB0, 0xDE, /* 0x14-0x17 */
+	0xB6, 0x9D, 0xB6, 0x9E, 0xD6, 0xC9, 0xB6, 0x9F, /* 0x18-0x1B */
+	0xB6, 0xA0, 0xB7, 0x40, 0xEF, 0xFD, 0xB7, 0x41, /* 0x1C-0x1F */
+	0xB3, 0xED, 0xB7, 0x42, 0xB7, 0x43, 0xF6, 0xD5, /* 0x20-0x23 */
+	0xB7, 0x44, 0xB7, 0x45, 0xB7, 0x46, 0xB7, 0x47, /* 0x24-0x27 */
+	0xB7, 0x48, 0xB7, 0x49, 0xB7, 0x4A, 0xB7, 0x4B, /* 0x28-0x2B */
+	0xB7, 0x4C, 0xB7, 0x4D, 0xB7, 0x4E, 0xB7, 0x4F, /* 0x2C-0x2F */
+	0xB7, 0x50, 0xB7, 0x51, 0xB7, 0x52, 0xCE, 0xC8, /* 0x30-0x33 */
+	0xB7, 0x53, 0xB7, 0x54, 0xB7, 0x55, 0xF0, 0xA2, /* 0x34-0x37 */
+	0xB7, 0x56, 0xF0, 0xA1, 0xB7, 0x57, 0xB5, 0xBE, /* 0x38-0x3B */
+	0xBC, 0xDA, 0xBB, 0xFC, 0xB7, 0x58, 0xB8, 0xE5, /* 0x3C-0x3F */
+	0xB7, 0x59, 0xB7, 0x5A, 0xB7, 0x5B, 0xB7, 0x5C, /* 0x40-0x43 */
+	0xB7, 0x5D, 0xB7, 0x5E, 0xC4, 0xC2, 0xB7, 0x5F, /* 0x44-0x47 */
+	0xB7, 0x60, 0xB7, 0x61, 0xB7, 0x62, 0xB7, 0x63, /* 0x48-0x4B */
+	0xB7, 0x64, 0xB7, 0x65, 0xB7, 0x66, 0xB7, 0x67, /* 0x4C-0x4F */
+	0xB7, 0x68, 0xF0, 0xA3, 0xB7, 0x69, 0xB7, 0x6A, /* 0x50-0x53 */
+	0xB7, 0x6B, 0xB7, 0x6C, 0xB7, 0x6D, 0xCB, 0xEB, /* 0x54-0x57 */
+	0xB7, 0x6E, 0xB7, 0x6F, 0xB7, 0x70, 0xB7, 0x71, /* 0x58-0x5B */
+	0xB7, 0x72, 0xB7, 0x73, 0xB7, 0x74, 0xB7, 0x75, /* 0x5C-0x5F */
+	0xB7, 0x76, 0xB7, 0x77, 0xB7, 0x78, 0xB7, 0x79, /* 0x60-0x63 */
+	0xB7, 0x7A, 0xB7, 0x7B, 0xB7, 0x7C, 0xB7, 0x7D, /* 0x64-0x67 */
+	0xB7, 0x7E, 0xB7, 0x80, 0xB7, 0x81, 0xB7, 0x82, /* 0x68-0x6B */
+	0xB7, 0x83, 0xB7, 0x84, 0xB7, 0x85, 0xB7, 0x86, /* 0x6C-0x6F */
+	0xF0, 0xA6, 0xB7, 0x87, 0xB7, 0x88, 0xB7, 0x89, /* 0x70-0x73 */
+	0xD1, 0xA8, 0xB7, 0x8A, 0xBE, 0xBF, 0xC7, 0xEE, /* 0x74-0x77 */
+	0xF1, 0xB6, 0xF1, 0xB7, 0xBF, 0xD5, 0xB7, 0x8B, /* 0x78-0x7B */
+	0xB7, 0x8C, 0xB7, 0x8D, 0xB7, 0x8E, 0xB4, 0xA9, /* 0x7C-0x7F */
+	
+	0xF1, 0xB8, 0xCD, 0xBB, 0xB7, 0x8F, 0xC7, 0xD4, /* 0x80-0x83 */
+	0xD5, 0xAD, 0xB7, 0x90, 0xF1, 0xB9, 0xB7, 0x91, /* 0x84-0x87 */
+	0xF1, 0xBA, 0xB7, 0x92, 0xB7, 0x93, 0xB7, 0x94, /* 0x88-0x8B */
+	0xB7, 0x95, 0xC7, 0xCF, 0xB7, 0x96, 0xB7, 0x97, /* 0x8C-0x8F */
+	0xB7, 0x98, 0xD2, 0xA4, 0xD6, 0xCF, 0xB7, 0x99, /* 0x90-0x93 */
+	0xB7, 0x9A, 0xF1, 0xBB, 0xBD, 0xD1, 0xB4, 0xB0, /* 0x94-0x97 */
+	0xBE, 0xBD, 0xB7, 0x9B, 0xB7, 0x9C, 0xB7, 0x9D, /* 0x98-0x9B */
+	0xB4, 0xDC, 0xCE, 0xD1, 0xB7, 0x9E, 0xBF, 0xDF, /* 0x9C-0x9F */
+	0xF1, 0xBD, 0xB7, 0x9F, 0xB7, 0xA0, 0xB8, 0x40, /* 0xA0-0xA3 */
+	0xB8, 0x41, 0xBF, 0xFA, 0xF1, 0xBC, 0xB8, 0x42, /* 0xA4-0xA7 */
+	0xF1, 0xBF, 0xB8, 0x43, 0xB8, 0x44, 0xB8, 0x45, /* 0xA8-0xAB */
+	0xF1, 0xBE, 0xF1, 0xC0, 0xB8, 0x46, 0xB8, 0x47, /* 0xAC-0xAF */
+	0xB8, 0x48, 0xB8, 0x49, 0xB8, 0x4A, 0xF1, 0xC1, /* 0xB0-0xB3 */
+	0xB8, 0x4B, 0xB8, 0x4C, 0xB8, 0x4D, 0xB8, 0x4E, /* 0xB4-0xB7 */
+	0xB8, 0x4F, 0xB8, 0x50, 0xB8, 0x51, 0xB8, 0x52, /* 0xB8-0xBB */
+	0xB8, 0x53, 0xB8, 0x54, 0xB8, 0x55, 0xC1, 0xFE, /* 0xBC-0xBF */
+	0xB8, 0x56, 0xB8, 0x57, 0xB8, 0x58, 0xB8, 0x59, /* 0xC0-0xC3 */
+	0xB8, 0x5A, 0xB8, 0x5B, 0xB8, 0x5C, 0xB8, 0x5D, /* 0xC4-0xC7 */
+	0xB8, 0x5E, 0xB8, 0x5F, 0xB8, 0x60, 0xC1, 0xA2, /* 0xC8-0xCB */
+	0xB8, 0x61, 0xB8, 0x62, 0xB8, 0x63, 0xB8, 0x64, /* 0xCC-0xCF */
+	0xB8, 0x65, 0xB8, 0x66, 0xB8, 0x67, 0xB8, 0x68, /* 0xD0-0xD3 */
+	0xB8, 0x69, 0xB8, 0x6A, 0xCA, 0xFA, 0xB8, 0x6B, /* 0xD4-0xD7 */
+	0xB8, 0x6C, 0xD5, 0xBE, 0xB8, 0x6D, 0xB8, 0x6E, /* 0xD8-0xDB */
+	0xB8, 0x6F, 0xB8, 0x70, 0xBE, 0xBA, 0xBE, 0xB9, /* 0xDC-0xDF */
+	0xD5, 0xC2, 0xB8, 0x71, 0xB8, 0x72, 0xBF, 0xA2, /* 0xE0-0xE3 */
+	0xB8, 0x73, 0xCD, 0xAF, 0xF1, 0xB5, 0xB8, 0x74, /* 0xE4-0xE7 */
+	0xB8, 0x75, 0xB8, 0x76, 0xB8, 0x77, 0xB8, 0x78, /* 0xE8-0xEB */
+	0xB8, 0x79, 0xBD, 0xDF, 0xB8, 0x7A, 0xB6, 0xCB, /* 0xEC-0xEF */
+	0xB8, 0x7B, 0xB8, 0x7C, 0xB8, 0x7D, 0xB8, 0x7E, /* 0xF0-0xF3 */
+	0xB8, 0x80, 0xB8, 0x81, 0xB8, 0x82, 0xB8, 0x83, /* 0xF4-0xF7 */
+	0xB8, 0x84, 0xD6, 0xF1, 0xF3, 0xC3, 0xB8, 0x85, /* 0xF8-0xFB */
+	0xB8, 0x86, 0xF3, 0xC4, 0xB8, 0x87, 0xB8, 0xCD, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_7B[512] = {
+	0xB8, 0x88, 0xB8, 0x89, 0xB8, 0x8A, 0xF3, 0xC6, /* 0x00-0x03 */
+	0xF3, 0xC7, 0xB8, 0x8B, 0xB0, 0xCA, 0xB8, 0x8C, /* 0x04-0x07 */
+	0xF3, 0xC5, 0xB8, 0x8D, 0xF3, 0xC9, 0xCB, 0xF1, /* 0x08-0x0B */
+	0xB8, 0x8E, 0xB8, 0x8F, 0xB8, 0x90, 0xF3, 0xCB, /* 0x0C-0x0F */
+	0xB8, 0x91, 0xD0, 0xA6, 0xB8, 0x92, 0xB8, 0x93, /* 0x10-0x13 */
+	0xB1, 0xCA, 0xF3, 0xC8, 0xB8, 0x94, 0xB8, 0x95, /* 0x14-0x17 */
+	0xB8, 0x96, 0xF3, 0xCF, 0xB8, 0x97, 0xB5, 0xD1, /* 0x18-0x1B */
+	0xB8, 0x98, 0xB8, 0x99, 0xF3, 0xD7, 0xB8, 0x9A, /* 0x1C-0x1F */
+	0xF3, 0xD2, 0xB8, 0x9B, 0xB8, 0x9C, 0xB8, 0x9D, /* 0x20-0x23 */
+	0xF3, 0xD4, 0xF3, 0xD3, 0xB7, 0xFB, 0xB8, 0x9E, /* 0x24-0x27 */
+	0xB1, 0xBF, 0xB8, 0x9F, 0xF3, 0xCE, 0xF3, 0xCA, /* 0x28-0x2B */
+	0xB5, 0xDA, 0xB8, 0xA0, 0xF3, 0xD0, 0xB9, 0x40, /* 0x2C-0x2F */
+	0xB9, 0x41, 0xF3, 0xD1, 0xB9, 0x42, 0xF3, 0xD5, /* 0x30-0x33 */
+	0xB9, 0x43, 0xB9, 0x44, 0xB9, 0x45, 0xB9, 0x46, /* 0x34-0x37 */
+	0xF3, 0xCD, 0xB9, 0x47, 0xBC, 0xE3, 0xB9, 0x48, /* 0x38-0x3B */
+	0xC1, 0xFD, 0xB9, 0x49, 0xF3, 0xD6, 0xB9, 0x4A, /* 0x3C-0x3F */
+	0xB9, 0x4B, 0xB9, 0x4C, 0xB9, 0x4D, 0xB9, 0x4E, /* 0x40-0x43 */
+	0xB9, 0x4F, 0xF3, 0xDA, 0xB9, 0x50, 0xF3, 0xCC, /* 0x44-0x47 */
+	0xB9, 0x51, 0xB5, 0xC8, 0xB9, 0x52, 0xBD, 0xEE, /* 0x48-0x4B */
+	0xF3, 0xDC, 0xB9, 0x53, 0xB9, 0x54, 0xB7, 0xA4, /* 0x4C-0x4F */
+	0xBF, 0xF0, 0xD6, 0xFE, 0xCD, 0xB2, 0xB9, 0x55, /* 0x50-0x53 */
+	0xB4, 0xF0, 0xB9, 0x56, 0xB2, 0xDF, 0xB9, 0x57, /* 0x54-0x57 */
+	0xF3, 0xD8, 0xB9, 0x58, 0xF3, 0xD9, 0xC9, 0xB8, /* 0x58-0x5B */
+	0xB9, 0x59, 0xF3, 0xDD, 0xB9, 0x5A, 0xB9, 0x5B, /* 0x5C-0x5F */
+	0xF3, 0xDE, 0xB9, 0x5C, 0xF3, 0xE1, 0xB9, 0x5D, /* 0x60-0x63 */
+	0xB9, 0x5E, 0xB9, 0x5F, 0xB9, 0x60, 0xB9, 0x61, /* 0x64-0x67 */
+	0xB9, 0x62, 0xB9, 0x63, 0xB9, 0x64, 0xB9, 0x65, /* 0x68-0x6B */
+	0xB9, 0x66, 0xB9, 0x67, 0xF3, 0xDF, 0xB9, 0x68, /* 0x6C-0x6F */
+	0xB9, 0x69, 0xF3, 0xE3, 0xF3, 0xE2, 0xB9, 0x6A, /* 0x70-0x73 */
+	0xB9, 0x6B, 0xF3, 0xDB, 0xB9, 0x6C, 0xBF, 0xEA, /* 0x74-0x77 */
+	0xB9, 0x6D, 0xB3, 0xEF, 0xB9, 0x6E, 0xF3, 0xE0, /* 0x78-0x7B */
+	0xB9, 0x6F, 0xB9, 0x70, 0xC7, 0xA9, 0xB9, 0x71, /* 0x7C-0x7F */
+	
+	0xBC, 0xF2, 0xB9, 0x72, 0xB9, 0x73, 0xB9, 0x74, /* 0x80-0x83 */
+	0xB9, 0x75, 0xF3, 0xEB, 0xB9, 0x76, 0xB9, 0x77, /* 0x84-0x87 */
+	0xB9, 0x78, 0xB9, 0x79, 0xB9, 0x7A, 0xB9, 0x7B, /* 0x88-0x8B */
+	0xB9, 0x7C, 0xB9, 0xBF, 0xB9, 0x7D, 0xB9, 0x7E, /* 0x8C-0x8F */
+	0xF3, 0xE4, 0xB9, 0x80, 0xB9, 0x81, 0xB9, 0x82, /* 0x90-0x93 */
+	0xB2, 0xAD, 0xBB, 0xFE, 0xB9, 0x83, 0xCB, 0xE3, /* 0x94-0x97 */
+	0xB9, 0x84, 0xB9, 0x85, 0xB9, 0x86, 0xB9, 0x87, /* 0x98-0x9B */
+	0xF3, 0xED, 0xF3, 0xE9, 0xB9, 0x88, 0xB9, 0x89, /* 0x9C-0x9F */
+	0xB9, 0x8A, 0xB9, 0xDC, 0xF3, 0xEE, 0xB9, 0x8B, /* 0xA0-0xA3 */
+	0xB9, 0x8C, 0xB9, 0x8D, 0xF3, 0xE5, 0xF3, 0xE6, /* 0xA4-0xA7 */
+	0xF3, 0xEA, 0xC2, 0xE1, 0xF3, 0xEC, 0xF3, 0xEF, /* 0xA8-0xAB */
+	0xF3, 0xE8, 0xBC, 0xFD, 0xB9, 0x8E, 0xB9, 0x8F, /* 0xAC-0xAF */
+	0xB9, 0x90, 0xCF, 0xE4, 0xB9, 0x91, 0xB9, 0x92, /* 0xB0-0xB3 */
+	0xF3, 0xF0, 0xB9, 0x93, 0xB9, 0x94, 0xB9, 0x95, /* 0xB4-0xB7 */
+	0xF3, 0xE7, 0xB9, 0x96, 0xB9, 0x97, 0xB9, 0x98, /* 0xB8-0xBB */
+	0xB9, 0x99, 0xB9, 0x9A, 0xB9, 0x9B, 0xB9, 0x9C, /* 0xBC-0xBF */
+	0xB9, 0x9D, 0xF3, 0xF2, 0xB9, 0x9E, 0xB9, 0x9F, /* 0xC0-0xC3 */
+	0xB9, 0xA0, 0xBA, 0x40, 0xD7, 0xAD, 0xC6, 0xAA, /* 0xC4-0xC7 */
+	0xBA, 0x41, 0xBA, 0x42, 0xBA, 0x43, 0xBA, 0x44, /* 0xC8-0xCB */
+	0xF3, 0xF3, 0xBA, 0x45, 0xBA, 0x46, 0xBA, 0x47, /* 0xCC-0xCF */
+	0xBA, 0x48, 0xF3, 0xF1, 0xBA, 0x49, 0xC2, 0xA8, /* 0xD0-0xD3 */
+	0xBA, 0x4A, 0xBA, 0x4B, 0xBA, 0x4C, 0xBA, 0x4D, /* 0xD4-0xD7 */
+	0xBA, 0x4E, 0xB8, 0xDD, 0xF3, 0xF5, 0xBA, 0x4F, /* 0xD8-0xDB */
+	0xBA, 0x50, 0xF3, 0xF4, 0xBA, 0x51, 0xBA, 0x52, /* 0xDC-0xDF */
+	0xBA, 0x53, 0xB4, 0xDB, 0xBA, 0x54, 0xBA, 0x55, /* 0xE0-0xE3 */
+	0xBA, 0x56, 0xF3, 0xF6, 0xF3, 0xF7, 0xBA, 0x57, /* 0xE4-0xE7 */
+	0xBA, 0x58, 0xBA, 0x59, 0xF3, 0xF8, 0xBA, 0x5A, /* 0xE8-0xEB */
+	0xBA, 0x5B, 0xBA, 0x5C, 0xC0, 0xBA, 0xBA, 0x5D, /* 0xEC-0xEF */
+	0xBA, 0x5E, 0xC0, 0xE9, 0xBA, 0x5F, 0xBA, 0x60, /* 0xF0-0xF3 */
+	0xBA, 0x61, 0xBA, 0x62, 0xBA, 0x63, 0xC5, 0xF1, /* 0xF4-0xF7 */
+	0xBA, 0x64, 0xBA, 0x65, 0xBA, 0x66, 0xBA, 0x67, /* 0xF8-0xFB */
+	0xF3, 0xFB, 0xBA, 0x68, 0xF3, 0xFA, 0xBA, 0x69, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_7C[512] = {
+	0xBA, 0x6A, 0xBA, 0x6B, 0xBA, 0x6C, 0xBA, 0x6D, /* 0x00-0x03 */
+	0xBA, 0x6E, 0xBA, 0x6F, 0xBA, 0x70, 0xB4, 0xD8, /* 0x04-0x07 */
+	0xBA, 0x71, 0xBA, 0x72, 0xBA, 0x73, 0xF3, 0xFE, /* 0x08-0x0B */
+	0xF3, 0xF9, 0xBA, 0x74, 0xBA, 0x75, 0xF3, 0xFC, /* 0x0C-0x0F */
+	0xBA, 0x76, 0xBA, 0x77, 0xBA, 0x78, 0xBA, 0x79, /* 0x10-0x13 */
+	0xBA, 0x7A, 0xBA, 0x7B, 0xF3, 0xFD, 0xBA, 0x7C, /* 0x14-0x17 */
+	0xBA, 0x7D, 0xBA, 0x7E, 0xBA, 0x80, 0xBA, 0x81, /* 0x18-0x1B */
+	0xBA, 0x82, 0xBA, 0x83, 0xBA, 0x84, 0xF4, 0xA1, /* 0x1C-0x1F */
+	0xBA, 0x85, 0xBA, 0x86, 0xBA, 0x87, 0xBA, 0x88, /* 0x20-0x23 */
+	0xBA, 0x89, 0xBA, 0x8A, 0xF4, 0xA3, 0xBB, 0xC9, /* 0x24-0x27 */
+	0xBA, 0x8B, 0xBA, 0x8C, 0xF4, 0xA2, 0xBA, 0x8D, /* 0x28-0x2B */
+	0xBA, 0x8E, 0xBA, 0x8F, 0xBA, 0x90, 0xBA, 0x91, /* 0x2C-0x2F */
+	0xBA, 0x92, 0xBA, 0x93, 0xBA, 0x94, 0xBA, 0x95, /* 0x30-0x33 */
+	0xBA, 0x96, 0xBA, 0x97, 0xBA, 0x98, 0xBA, 0x99, /* 0x34-0x37 */
+	0xF4, 0xA4, 0xBA, 0x9A, 0xBA, 0x9B, 0xBA, 0x9C, /* 0x38-0x3B */
+	0xBA, 0x9D, 0xBA, 0x9E, 0xBA, 0x9F, 0xB2, 0xBE, /* 0x3C-0x3F */
+	0xF4, 0xA6, 0xF4, 0xA5, 0xBA, 0xA0, 0xBB, 0x40, /* 0x40-0x43 */
+	0xBB, 0x41, 0xBB, 0x42, 0xBB, 0x43, 0xBB, 0x44, /* 0x44-0x47 */
+	0xBB, 0x45, 0xBB, 0x46, 0xBB, 0x47, 0xBB, 0x48, /* 0x48-0x4B */
+	0xBB, 0x49, 0xBC, 0xAE, 0xBB, 0x4A, 0xBB, 0x4B, /* 0x4C-0x4F */
+	0xBB, 0x4C, 0xBB, 0x4D, 0xBB, 0x4E, 0xBB, 0x4F, /* 0x50-0x53 */
+	0xBB, 0x50, 0xBB, 0x51, 0xBB, 0x52, 0xBB, 0x53, /* 0x54-0x57 */
+	0xBB, 0x54, 0xBB, 0x55, 0xBB, 0x56, 0xBB, 0x57, /* 0x58-0x5B */
+	0xBB, 0x58, 0xBB, 0x59, 0xBB, 0x5A, 0xBB, 0x5B, /* 0x5C-0x5F */
+	0xBB, 0x5C, 0xBB, 0x5D, 0xBB, 0x5E, 0xBB, 0x5F, /* 0x60-0x63 */
+	0xBB, 0x60, 0xBB, 0x61, 0xBB, 0x62, 0xBB, 0x63, /* 0x64-0x67 */
+	0xBB, 0x64, 0xBB, 0x65, 0xBB, 0x66, 0xBB, 0x67, /* 0x68-0x6B */
+	0xBB, 0x68, 0xBB, 0x69, 0xBB, 0x6A, 0xBB, 0x6B, /* 0x6C-0x6F */
+	0xBB, 0x6C, 0xBB, 0x6D, 0xBB, 0x6E, 0xC3, 0xD7, /* 0x70-0x73 */
+	0xD9, 0xE1, 0xBB, 0x6F, 0xBB, 0x70, 0xBB, 0x71, /* 0x74-0x77 */
+	0xBB, 0x72, 0xBB, 0x73, 0xBB, 0x74, 0xC0, 0xE0, /* 0x78-0x7B */
+	0xF4, 0xCC, 0xD7, 0xD1, 0xBB, 0x75, 0xBB, 0x76, /* 0x7C-0x7F */
+	
+	0xBB, 0x77, 0xBB, 0x78, 0xBB, 0x79, 0xBB, 0x7A, /* 0x80-0x83 */
+	0xBB, 0x7B, 0xBB, 0x7C, 0xBB, 0x7D, 0xBB, 0x7E, /* 0x84-0x87 */
+	0xBB, 0x80, 0xB7, 0xDB, 0xBB, 0x81, 0xBB, 0x82, /* 0x88-0x8B */
+	0xBB, 0x83, 0xBB, 0x84, 0xBB, 0x85, 0xBB, 0x86, /* 0x8C-0x8F */
+	0xBB, 0x87, 0xF4, 0xCE, 0xC1, 0xA3, 0xBB, 0x88, /* 0x90-0x93 */
+	0xBB, 0x89, 0xC6, 0xC9, 0xBB, 0x8A, 0xB4, 0xD6, /* 0x94-0x97 */
+	0xD5, 0xB3, 0xBB, 0x8B, 0xBB, 0x8C, 0xBB, 0x8D, /* 0x98-0x9B */
+	0xF4, 0xD0, 0xF4, 0xCF, 0xF4, 0xD1, 0xCB, 0xDA, /* 0x9C-0x9F */
+	0xBB, 0x8E, 0xBB, 0x8F, 0xF4, 0xD2, 0xBB, 0x90, /* 0xA0-0xA3 */
+	0xD4, 0xC1, 0xD6, 0xE0, 0xBB, 0x91, 0xBB, 0x92, /* 0xA4-0xA7 */
+	0xBB, 0x93, 0xBB, 0x94, 0xB7, 0xE0, 0xBB, 0x95, /* 0xA8-0xAB */
+	0xBB, 0x96, 0xBB, 0x97, 0xC1, 0xB8, 0xBB, 0x98, /* 0xAC-0xAF */
+	0xBB, 0x99, 0xC1, 0xBB, 0xF4, 0xD3, 0xBE, 0xAC, /* 0xB0-0xB3 */
+	0xBB, 0x9A, 0xBB, 0x9B, 0xBB, 0x9C, 0xBB, 0x9D, /* 0xB4-0xB7 */
+	0xBB, 0x9E, 0xB4, 0xE2, 0xBB, 0x9F, 0xBB, 0xA0, /* 0xB8-0xBB */
+	0xF4, 0xD4, 0xF4, 0xD5, 0xBE, 0xAB, 0xBC, 0x40, /* 0xBC-0xBF */
+	0xBC, 0x41, 0xF4, 0xD6, 0xBC, 0x42, 0xBC, 0x43, /* 0xC0-0xC3 */
+	0xBC, 0x44, 0xF4, 0xDB, 0xBC, 0x45, 0xF4, 0xD7, /* 0xC4-0xC7 */
+	0xF4, 0xDA, 0xBC, 0x46, 0xBA, 0xFD, 0xBC, 0x47, /* 0xC8-0xCB */
+	0xF4, 0xD8, 0xF4, 0xD9, 0xBC, 0x48, 0xBC, 0x49, /* 0xCC-0xCF */
+	0xBC, 0x4A, 0xBC, 0x4B, 0xBC, 0x4C, 0xBC, 0x4D, /* 0xD0-0xD3 */
+	0xBC, 0x4E, 0xB8, 0xE2, 0xCC, 0xC7, 0xF4, 0xDC, /* 0xD4-0xD7 */
+	0xBC, 0x4F, 0xB2, 0xDA, 0xBC, 0x50, 0xBC, 0x51, /* 0xD8-0xDB */
+	0xC3, 0xD3, 0xBC, 0x52, 0xBC, 0x53, 0xD4, 0xE3, /* 0xDC-0xDF */
+	0xBF, 0xB7, 0xBC, 0x54, 0xBC, 0x55, 0xBC, 0x56, /* 0xE0-0xE3 */
+	0xBC, 0x57, 0xBC, 0x58, 0xBC, 0x59, 0xBC, 0x5A, /* 0xE4-0xE7 */
+	0xF4, 0xDD, 0xBC, 0x5B, 0xBC, 0x5C, 0xBC, 0x5D, /* 0xE8-0xEB */
+	0xBC, 0x5E, 0xBC, 0x5F, 0xBC, 0x60, 0xC5, 0xB4, /* 0xEC-0xEF */
+	0xBC, 0x61, 0xBC, 0x62, 0xBC, 0x63, 0xBC, 0x64, /* 0xF0-0xF3 */
+	0xBC, 0x65, 0xBC, 0x66, 0xBC, 0x67, 0xBC, 0x68, /* 0xF4-0xF7 */
+	0xF4, 0xE9, 0xBC, 0x69, 0xBC, 0x6A, 0xCF, 0xB5, /* 0xF8-0xFB */
+	0xBC, 0x6B, 0xBC, 0x6C, 0xBC, 0x6D, 0xBC, 0x6E, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_7D[512] = {
+	0xBC, 0x6F, 0xBC, 0x70, 0xBC, 0x71, 0xBC, 0x72, /* 0x00-0x03 */
+	0xBC, 0x73, 0xBC, 0x74, 0xBC, 0x75, 0xBC, 0x76, /* 0x04-0x07 */
+	0xBC, 0x77, 0xBC, 0x78, 0xCE, 0xC9, 0xBC, 0x79, /* 0x08-0x0B */
+	0xBC, 0x7A, 0xBC, 0x7B, 0xBC, 0x7C, 0xBC, 0x7D, /* 0x0C-0x0F */
+	0xBC, 0x7E, 0xBC, 0x80, 0xBC, 0x81, 0xBC, 0x82, /* 0x10-0x13 */
+	0xBC, 0x83, 0xBC, 0x84, 0xBC, 0x85, 0xBC, 0x86, /* 0x14-0x17 */
+	0xBC, 0x87, 0xBC, 0x88, 0xBC, 0x89, 0xBC, 0x8A, /* 0x18-0x1B */
+	0xBC, 0x8B, 0xBC, 0x8C, 0xBC, 0x8D, 0xBC, 0x8E, /* 0x1C-0x1F */
+	0xCB, 0xD8, 0xBC, 0x8F, 0xCB, 0xF7, 0xBC, 0x90, /* 0x20-0x23 */
+	0xBC, 0x91, 0xBC, 0x92, 0xBC, 0x93, 0xBD, 0xF4, /* 0x24-0x27 */
+	0xBC, 0x94, 0xBC, 0x95, 0xBC, 0x96, 0xD7, 0xCF, /* 0x28-0x2B */
+	0xBC, 0x97, 0xBC, 0x98, 0xBC, 0x99, 0xC0, 0xDB, /* 0x2C-0x2F */
+	0xBC, 0x9A, 0xBC, 0x9B, 0xBC, 0x9C, 0xBC, 0x9D, /* 0x30-0x33 */
+	0xBC, 0x9E, 0xBC, 0x9F, 0xBC, 0xA0, 0xBD, 0x40, /* 0x34-0x37 */
+	0xBD, 0x41, 0xBD, 0x42, 0xBD, 0x43, 0xBD, 0x44, /* 0x38-0x3B */
+	0xBD, 0x45, 0xBD, 0x46, 0xBD, 0x47, 0xBD, 0x48, /* 0x3C-0x3F */
+	0xBD, 0x49, 0xBD, 0x4A, 0xBD, 0x4B, 0xBD, 0x4C, /* 0x40-0x43 */
+	0xBD, 0x4D, 0xBD, 0x4E, 0xBD, 0x4F, 0xBD, 0x50, /* 0x44-0x47 */
+	0xBD, 0x51, 0xBD, 0x52, 0xBD, 0x53, 0xBD, 0x54, /* 0x48-0x4B */
+	0xBD, 0x55, 0xBD, 0x56, 0xBD, 0x57, 0xBD, 0x58, /* 0x4C-0x4F */
+	0xBD, 0x59, 0xBD, 0x5A, 0xBD, 0x5B, 0xBD, 0x5C, /* 0x50-0x53 */
+	0xBD, 0x5D, 0xBD, 0x5E, 0xBD, 0x5F, 0xBD, 0x60, /* 0x54-0x57 */
+	0xBD, 0x61, 0xBD, 0x62, 0xBD, 0x63, 0xBD, 0x64, /* 0x58-0x5B */
+	0xBD, 0x65, 0xBD, 0x66, 0xBD, 0x67, 0xBD, 0x68, /* 0x5C-0x5F */
+	0xBD, 0x69, 0xBD, 0x6A, 0xBD, 0x6B, 0xBD, 0x6C, /* 0x60-0x63 */
+	0xBD, 0x6D, 0xBD, 0x6E, 0xBD, 0x6F, 0xBD, 0x70, /* 0x64-0x67 */
+	0xBD, 0x71, 0xBD, 0x72, 0xBD, 0x73, 0xBD, 0x74, /* 0x68-0x6B */
+	0xBD, 0x75, 0xBD, 0x76, 0xD0, 0xF5, 0xBD, 0x77, /* 0x6C-0x6F */
+	0xBD, 0x78, 0xBD, 0x79, 0xBD, 0x7A, 0xBD, 0x7B, /* 0x70-0x73 */
+	0xBD, 0x7C, 0xBD, 0x7D, 0xBD, 0x7E, 0xF4, 0xEA, /* 0x74-0x77 */
+	0xBD, 0x80, 0xBD, 0x81, 0xBD, 0x82, 0xBD, 0x83, /* 0x78-0x7B */
+	0xBD, 0x84, 0xBD, 0x85, 0xBD, 0x86, 0xBD, 0x87, /* 0x7C-0x7F */
+	
+	0xBD, 0x88, 0xBD, 0x89, 0xBD, 0x8A, 0xBD, 0x8B, /* 0x80-0x83 */
+	0xBD, 0x8C, 0xBD, 0x8D, 0xBD, 0x8E, 0xBD, 0x8F, /* 0x84-0x87 */
+	0xBD, 0x90, 0xBD, 0x91, 0xBD, 0x92, 0xBD, 0x93, /* 0x88-0x8B */
+	0xBD, 0x94, 0xBD, 0x95, 0xBD, 0x96, 0xBD, 0x97, /* 0x8C-0x8F */
+	0xBD, 0x98, 0xBD, 0x99, 0xBD, 0x9A, 0xBD, 0x9B, /* 0x90-0x93 */
+	0xBD, 0x9C, 0xBD, 0x9D, 0xBD, 0x9E, 0xBD, 0x9F, /* 0x94-0x97 */
+	0xBD, 0xA0, 0xBE, 0x40, 0xBE, 0x41, 0xBE, 0x42, /* 0x98-0x9B */
+	0xBE, 0x43, 0xBE, 0x44, 0xBE, 0x45, 0xBE, 0x46, /* 0x9C-0x9F */
+	0xBE, 0x47, 0xBE, 0x48, 0xBE, 0x49, 0xBE, 0x4A, /* 0xA0-0xA3 */
+	0xBE, 0x4B, 0xBE, 0x4C, 0xF4, 0xEB, 0xBE, 0x4D, /* 0xA4-0xA7 */
+	0xBE, 0x4E, 0xBE, 0x4F, 0xBE, 0x50, 0xBE, 0x51, /* 0xA8-0xAB */
+	0xBE, 0x52, 0xBE, 0x53, 0xF4, 0xEC, 0xBE, 0x54, /* 0xAC-0xAF */
+	0xBE, 0x55, 0xBE, 0x56, 0xBE, 0x57, 0xBE, 0x58, /* 0xB0-0xB3 */
+	0xBE, 0x59, 0xBE, 0x5A, 0xBE, 0x5B, 0xBE, 0x5C, /* 0xB4-0xB7 */
+	0xBE, 0x5D, 0xBE, 0x5E, 0xBE, 0x5F, 0xBE, 0x60, /* 0xB8-0xBB */
+	0xBE, 0x61, 0xBE, 0x62, 0xBE, 0x63, 0xBE, 0x64, /* 0xBC-0xBF */
+	0xBE, 0x65, 0xBE, 0x66, 0xBE, 0x67, 0xBE, 0x68, /* 0xC0-0xC3 */
+	0xBE, 0x69, 0xBE, 0x6A, 0xBE, 0x6B, 0xBE, 0x6C, /* 0xC4-0xC7 */
+	0xBE, 0x6D, 0xBE, 0x6E, 0xBE, 0x6F, 0xBE, 0x70, /* 0xC8-0xCB */
+	0xBE, 0x71, 0xBE, 0x72, 0xBE, 0x73, 0xBE, 0x74, /* 0xCC-0xCF */
+	0xBE, 0x75, 0xBE, 0x76, 0xBE, 0x77, 0xBE, 0x78, /* 0xD0-0xD3 */
+	0xBE, 0x79, 0xBE, 0x7A, 0xBE, 0x7B, 0xBE, 0x7C, /* 0xD4-0xD7 */
+	0xBE, 0x7D, 0xBE, 0x7E, 0xBE, 0x80, 0xBE, 0x81, /* 0xD8-0xDB */
+	0xBE, 0x82, 0xBE, 0x83, 0xBE, 0x84, 0xBE, 0x85, /* 0xDC-0xDF */
+	0xBE, 0x86, 0xBE, 0x87, 0xBE, 0x88, 0xBE, 0x89, /* 0xE0-0xE3 */
+	0xBE, 0x8A, 0xBE, 0x8B, 0xBE, 0x8C, 0xBE, 0x8D, /* 0xE4-0xE7 */
+	0xBE, 0x8E, 0xBE, 0x8F, 0xBE, 0x90, 0xBE, 0x91, /* 0xE8-0xEB */
+	0xBE, 0x92, 0xBE, 0x93, 0xBE, 0x94, 0xBE, 0x95, /* 0xEC-0xEF */
+	0xBE, 0x96, 0xBE, 0x97, 0xBE, 0x98, 0xBE, 0x99, /* 0xF0-0xF3 */
+	0xBE, 0x9A, 0xBE, 0x9B, 0xBE, 0x9C, 0xBE, 0x9D, /* 0xF4-0xF7 */
+	0xBE, 0x9E, 0xBE, 0x9F, 0xBE, 0xA0, 0xBF, 0x40, /* 0xF8-0xFB */
+	0xBF, 0x41, 0xBF, 0x42, 0xBF, 0x43, 0xBF, 0x44, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_7E[512] = {
+	0xBF, 0x45, 0xBF, 0x46, 0xBF, 0x47, 0xBF, 0x48, /* 0x00-0x03 */
+	0xBF, 0x49, 0xBF, 0x4A, 0xBF, 0x4B, 0xBF, 0x4C, /* 0x04-0x07 */
+	0xBF, 0x4D, 0xBF, 0x4E, 0xBF, 0x4F, 0xBF, 0x50, /* 0x08-0x0B */
+	0xBF, 0x51, 0xBF, 0x52, 0xBF, 0x53, 0xBF, 0x54, /* 0x0C-0x0F */
+	0xBF, 0x55, 0xBF, 0x56, 0xBF, 0x57, 0xBF, 0x58, /* 0x10-0x13 */
+	0xBF, 0x59, 0xBF, 0x5A, 0xBF, 0x5B, 0xBF, 0x5C, /* 0x14-0x17 */
+	0xBF, 0x5D, 0xBF, 0x5E, 0xBF, 0x5F, 0xBF, 0x60, /* 0x18-0x1B */
+	0xBF, 0x61, 0xBF, 0x62, 0xBF, 0x63, 0xBF, 0x64, /* 0x1C-0x1F */
+	0xBF, 0x65, 0xBF, 0x66, 0xBF, 0x67, 0xBF, 0x68, /* 0x20-0x23 */
+	0xBF, 0x69, 0xBF, 0x6A, 0xBF, 0x6B, 0xBF, 0x6C, /* 0x24-0x27 */
+	0xBF, 0x6D, 0xBF, 0x6E, 0xBF, 0x6F, 0xBF, 0x70, /* 0x28-0x2B */
+	0xBF, 0x71, 0xBF, 0x72, 0xBF, 0x73, 0xBF, 0x74, /* 0x2C-0x2F */
+	0xBF, 0x75, 0xBF, 0x76, 0xBF, 0x77, 0xBF, 0x78, /* 0x30-0x33 */
+	0xBF, 0x79, 0xBF, 0x7A, 0xBF, 0x7B, 0xBF, 0x7C, /* 0x34-0x37 */
+	0xBF, 0x7D, 0xBF, 0x7E, 0xBF, 0x80, 0xF7, 0xE3, /* 0x38-0x3B */
+	0xBF, 0x81, 0xBF, 0x82, 0xBF, 0x83, 0xBF, 0x84, /* 0x3C-0x3F */
+	0xBF, 0x85, 0xB7, 0xB1, 0xBF, 0x86, 0xBF, 0x87, /* 0x40-0x43 */
+	0xBF, 0x88, 0xBF, 0x89, 0xBF, 0x8A, 0xF4, 0xED, /* 0x44-0x47 */
+	0xBF, 0x8B, 0xBF, 0x8C, 0xBF, 0x8D, 0xBF, 0x8E, /* 0x48-0x4B */
+	0xBF, 0x8F, 0xBF, 0x90, 0xBF, 0x91, 0xBF, 0x92, /* 0x4C-0x4F */
+	0xBF, 0x93, 0xBF, 0x94, 0xBF, 0x95, 0xBF, 0x96, /* 0x50-0x53 */
+	0xBF, 0x97, 0xBF, 0x98, 0xBF, 0x99, 0xBF, 0x9A, /* 0x54-0x57 */
+	0xBF, 0x9B, 0xBF, 0x9C, 0xBF, 0x9D, 0xBF, 0x9E, /* 0x58-0x5B */
+	0xBF, 0x9F, 0xBF, 0xA0, 0xC0, 0x40, 0xC0, 0x41, /* 0x5C-0x5F */
+	0xC0, 0x42, 0xC0, 0x43, 0xC0, 0x44, 0xC0, 0x45, /* 0x60-0x63 */
+	0xC0, 0x46, 0xC0, 0x47, 0xC0, 0x48, 0xC0, 0x49, /* 0x64-0x67 */
+	0xC0, 0x4A, 0xC0, 0x4B, 0xC0, 0x4C, 0xC0, 0x4D, /* 0x68-0x6B */
+	0xC0, 0x4E, 0xC0, 0x4F, 0xC0, 0x50, 0xC0, 0x51, /* 0x6C-0x6F */
+	0xC0, 0x52, 0xC0, 0x53, 0xC0, 0x54, 0xC0, 0x55, /* 0x70-0x73 */
+	0xC0, 0x56, 0xC0, 0x57, 0xC0, 0x58, 0xC0, 0x59, /* 0x74-0x77 */
+	0xC0, 0x5A, 0xC0, 0x5B, 0xC0, 0x5C, 0xC0, 0x5D, /* 0x78-0x7B */
+	0xC0, 0x5E, 0xC0, 0x5F, 0xC0, 0x60, 0xC0, 0x61, /* 0x7C-0x7F */
+	
+	0xC0, 0x62, 0xC0, 0x63, 0xD7, 0xEB, 0xC0, 0x64, /* 0x80-0x83 */
+	0xC0, 0x65, 0xC0, 0x66, 0xC0, 0x67, 0xC0, 0x68, /* 0x84-0x87 */
+	0xC0, 0x69, 0xC0, 0x6A, 0xC0, 0x6B, 0xC0, 0x6C, /* 0x88-0x8B */
+	0xC0, 0x6D, 0xC0, 0x6E, 0xC0, 0x6F, 0xC0, 0x70, /* 0x8C-0x8F */
+	0xC0, 0x71, 0xC0, 0x72, 0xC0, 0x73, 0xC0, 0x74, /* 0x90-0x93 */
+	0xC0, 0x75, 0xC0, 0x76, 0xC0, 0x77, 0xC0, 0x78, /* 0x94-0x97 */
+	0xC0, 0x79, 0xC0, 0x7A, 0xC0, 0x7B, 0xF4, 0xEE, /* 0x98-0x9B */
+	0xC0, 0x7C, 0xC0, 0x7D, 0xC0, 0x7E, 0xE6, 0xF9, /* 0x9C-0x9F */
+	0xBE, 0xC0, 0xE6, 0xFA, 0xBA, 0xEC, 0xE6, 0xFB, /* 0xA0-0xA3 */
+	0xCF, 0xCB, 0xE6, 0xFC, 0xD4, 0xBC, 0xBC, 0xB6, /* 0xA4-0xA7 */
+	0xE6, 0xFD, 0xE6, 0xFE, 0xBC, 0xCD, 0xC8, 0xD2, /* 0xA8-0xAB */
+	0xCE, 0xB3, 0xE7, 0xA1, 0xC0, 0x80, 0xB4, 0xBF, /* 0xAC-0xAF */
+	0xE7, 0xA2, 0xC9, 0xB4, 0xB8, 0xD9, 0xC4, 0xC9, /* 0xB0-0xB3 */
+	0xC0, 0x81, 0xD7, 0xDD, 0xC2, 0xDA, 0xB7, 0xD7, /* 0xB4-0xB7 */
+	0xD6, 0xBD, 0xCE, 0xC6, 0xB7, 0xC4, 0xC0, 0x82, /* 0xB8-0xBB */
+	0xC0, 0x83, 0xC5, 0xA6, 0xE7, 0xA3, 0xCF, 0xDF, /* 0xBC-0xBF */
+	0xE7, 0xA4, 0xE7, 0xA5, 0xE7, 0xA6, 0xC1, 0xB7, /* 0xC0-0xC3 */
+	0xD7, 0xE9, 0xC9, 0xF0, 0xCF, 0xB8, 0xD6, 0xAF, /* 0xC4-0xC7 */
+	0xD6, 0xD5, 0xE7, 0xA7, 0xB0, 0xED, 0xE7, 0xA8, /* 0xC8-0xCB */
+	0xE7, 0xA9, 0xC9, 0xDC, 0xD2, 0xEF, 0xBE, 0xAD, /* 0xCC-0xCF */
+	0xE7, 0xAA, 0xB0, 0xF3, 0xC8, 0xDE, 0xBD, 0xE1, /* 0xD0-0xD3 */
+	0xE7, 0xAB, 0xC8, 0xC6, 0xC0, 0x84, 0xE7, 0xAC, /* 0xD4-0xD7 */
+	0xBB, 0xE6, 0xB8, 0xF8, 0xD1, 0xA4, 0xE7, 0xAD, /* 0xD8-0xDB */
+	0xC2, 0xE7, 0xBE, 0xF8, 0xBD, 0xCA, 0xCD, 0xB3, /* 0xDC-0xDF */
+	0xE7, 0xAE, 0xE7, 0xAF, 0xBE, 0xEE, 0xD0, 0xE5, /* 0xE0-0xE3 */
+	0xC0, 0x85, 0xCB, 0xE7, 0xCC, 0xD0, 0xBC, 0xCC, /* 0xE4-0xE7 */
+	0xE7, 0xB0, 0xBC, 0xA8, 0xD0, 0xF7, 0xE7, 0xB1, /* 0xE8-0xEB */
+	0xC0, 0x86, 0xD0, 0xF8, 0xE7, 0xB2, 0xE7, 0xB3, /* 0xEC-0xEF */
+	0xB4, 0xC2, 0xE7, 0xB4, 0xE7, 0xB5, 0xC9, 0xFE, /* 0xF0-0xF3 */
+	0xCE, 0xAC, 0xC3, 0xE0, 0xE7, 0xB7, 0xB1, 0xC1, /* 0xF4-0xF7 */
+	0xB3, 0xF1, 0xC0, 0x87, 0xE7, 0xB8, 0xE7, 0xB9, /* 0xF8-0xFB */
+	0xD7, 0xDB, 0xD5, 0xC0, 0xE7, 0xBA, 0xC2, 0xCC, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_7F[512] = {
+	0xD7, 0xBA, 0xE7, 0xBB, 0xE7, 0xBC, 0xE7, 0xBD, /* 0x00-0x03 */
+	0xBC, 0xEA, 0xC3, 0xE5, 0xC0, 0xC2, 0xE7, 0xBE, /* 0x04-0x07 */
+	0xE7, 0xBF, 0xBC, 0xA9, 0xC0, 0x88, 0xE7, 0xC0, /* 0x08-0x0B */
+	0xE7, 0xC1, 0xE7, 0xB6, 0xB6, 0xD0, 0xE7, 0xC2, /* 0x0C-0x0F */
+	0xC0, 0x89, 0xE7, 0xC3, 0xE7, 0xC4, 0xBB, 0xBA, /* 0x10-0x13 */
+	0xB5, 0xDE, 0xC2, 0xC6, 0xB1, 0xE0, 0xE7, 0xC5, /* 0x14-0x17 */
+	0xD4, 0xB5, 0xE7, 0xC6, 0xB8, 0xBF, 0xE7, 0xC8, /* 0x18-0x1B */
+	0xE7, 0xC7, 0xB7, 0xEC, 0xC0, 0x8A, 0xE7, 0xC9, /* 0x1C-0x1F */
+	0xB2, 0xF8, 0xE7, 0xCA, 0xE7, 0xCB, 0xE7, 0xCC, /* 0x20-0x23 */
+	0xE7, 0xCD, 0xE7, 0xCE, 0xE7, 0xCF, 0xE7, 0xD0, /* 0x24-0x27 */
+	0xD3, 0xA7, 0xCB, 0xF5, 0xE7, 0xD1, 0xE7, 0xD2, /* 0x28-0x2B */
+	0xE7, 0xD3, 0xE7, 0xD4, 0xC9, 0xC9, 0xE7, 0xD5, /* 0x2C-0x2F */
+	0xE7, 0xD6, 0xE7, 0xD7, 0xE7, 0xD8, 0xE7, 0xD9, /* 0x30-0x33 */
+	0xBD, 0xC9, 0xE7, 0xDA, 0xF3, 0xBE, 0xC0, 0x8B, /* 0x34-0x37 */
+	0xB8, 0xD7, 0xC0, 0x8C, 0xC8, 0xB1, 0xC0, 0x8D, /* 0x38-0x3B */
+	0xC0, 0x8E, 0xC0, 0x8F, 0xC0, 0x90, 0xC0, 0x91, /* 0x3C-0x3F */
+	0xC0, 0x92, 0xC0, 0x93, 0xF3, 0xBF, 0xC0, 0x94, /* 0x40-0x43 */
+	0xF3, 0xC0, 0xF3, 0xC1, 0xC0, 0x95, 0xC0, 0x96, /* 0x44-0x47 */
+	0xC0, 0x97, 0xC0, 0x98, 0xC0, 0x99, 0xC0, 0x9A, /* 0x48-0x4B */
+	0xC0, 0x9B, 0xC0, 0x9C, 0xC0, 0x9D, 0xC0, 0x9E, /* 0x4C-0x4F */
+	0xB9, 0xDE, 0xCD, 0xF8, 0xC0, 0x9F, 0xC0, 0xA0, /* 0x50-0x53 */
+	0xD8, 0xE8, 0xBA, 0xB1, 0xC1, 0x40, 0xC2, 0xDE, /* 0x54-0x57 */
+	0xEE, 0xB7, 0xC1, 0x41, 0xB7, 0xA3, 0xC1, 0x42, /* 0x58-0x5B */
+	0xC1, 0x43, 0xC1, 0x44, 0xC1, 0x45, 0xEE, 0xB9, /* 0x5C-0x5F */
+	0xC1, 0x46, 0xEE, 0xB8, 0xB0, 0xD5, 0xC1, 0x47, /* 0x60-0x63 */
+	0xC1, 0x48, 0xC1, 0x49, 0xC1, 0x4A, 0xC1, 0x4B, /* 0x64-0x67 */
+	0xEE, 0xBB, 0xD5, 0xD6, 0xD7, 0xEF, 0xC1, 0x4C, /* 0x68-0x6B */
+	0xC1, 0x4D, 0xC1, 0x4E, 0xD6, 0xC3, 0xC1, 0x4F, /* 0x6C-0x6F */
+	0xC1, 0x50, 0xEE, 0xBD, 0xCA, 0xF0, 0xC1, 0x51, /* 0x70-0x73 */
+	0xEE, 0xBC, 0xC1, 0x52, 0xC1, 0x53, 0xC1, 0x54, /* 0x74-0x77 */
+	0xC1, 0x55, 0xEE, 0xBE, 0xC1, 0x56, 0xC1, 0x57, /* 0x78-0x7B */
+	0xC1, 0x58, 0xC1, 0x59, 0xEE, 0xC0, 0xC1, 0x5A, /* 0x7C-0x7F */
+	
+	0xC1, 0x5B, 0xEE, 0xBF, 0xC1, 0x5C, 0xC1, 0x5D, /* 0x80-0x83 */
+	0xC1, 0x5E, 0xC1, 0x5F, 0xC1, 0x60, 0xC1, 0x61, /* 0x84-0x87 */
+	0xC1, 0x62, 0xC1, 0x63, 0xD1, 0xF2, 0xC1, 0x64, /* 0x88-0x8B */
+	0xC7, 0xBC, 0xC1, 0x65, 0xC3, 0xC0, 0xC1, 0x66, /* 0x8C-0x8F */
+	0xC1, 0x67, 0xC1, 0x68, 0xC1, 0x69, 0xC1, 0x6A, /* 0x90-0x93 */
+	0xB8, 0xE1, 0xC1, 0x6B, 0xC1, 0x6C, 0xC1, 0x6D, /* 0x94-0x97 */
+	0xC1, 0x6E, 0xC1, 0x6F, 0xC1, 0xE7, 0xC1, 0x70, /* 0x98-0x9B */
+	0xC1, 0x71, 0xF4, 0xC6, 0xD0, 0xDF, 0xF4, 0xC7, /* 0x9C-0x9F */
+	0xC1, 0x72, 0xCF, 0xDB, 0xC1, 0x73, 0xC1, 0x74, /* 0xA0-0xA3 */
+	0xC8, 0xBA, 0xC1, 0x75, 0xC1, 0x76, 0xF4, 0xC8, /* 0xA4-0xA7 */
+	0xC1, 0x77, 0xC1, 0x78, 0xC1, 0x79, 0xC1, 0x7A, /* 0xA8-0xAB */
+	0xC1, 0x7B, 0xC1, 0x7C, 0xC1, 0x7D, 0xF4, 0xC9, /* 0xAC-0xAF */
+	0xF4, 0xCA, 0xC1, 0x7E, 0xF4, 0xCB, 0xC1, 0x80, /* 0xB0-0xB3 */
+	0xC1, 0x81, 0xC1, 0x82, 0xC1, 0x83, 0xC1, 0x84, /* 0xB4-0xB7 */
+	0xD9, 0xFA, 0xB8, 0xFE, 0xC1, 0x85, 0xC1, 0x86, /* 0xB8-0xBB */
+	0xE5, 0xF1, 0xD3, 0xF0, 0xC1, 0x87, 0xF4, 0xE0, /* 0xBC-0xBF */
+	0xC1, 0x88, 0xCE, 0xCC, 0xC1, 0x89, 0xC1, 0x8A, /* 0xC0-0xC3 */
+	0xC1, 0x8B, 0xB3, 0xE1, 0xC1, 0x8C, 0xC1, 0x8D, /* 0xC4-0xC7 */
+	0xC1, 0x8E, 0xC1, 0x8F, 0xF1, 0xB4, 0xC1, 0x90, /* 0xC8-0xCB */
+	0xD2, 0xEE, 0xC1, 0x91, 0xF4, 0xE1, 0xC1, 0x92, /* 0xCC-0xCF */
+	0xC1, 0x93, 0xC1, 0x94, 0xC1, 0x95, 0xC1, 0x96, /* 0xD0-0xD3 */
+	0xCF, 0xE8, 0xF4, 0xE2, 0xC1, 0x97, 0xC1, 0x98, /* 0xD4-0xD7 */
+	0xC7, 0xCC, 0xC1, 0x99, 0xC1, 0x9A, 0xC1, 0x9B, /* 0xD8-0xDB */
+	0xC1, 0x9C, 0xC1, 0x9D, 0xC1, 0x9E, 0xB5, 0xD4, /* 0xDC-0xDF */
+	0xB4, 0xE4, 0xF4, 0xE4, 0xC1, 0x9F, 0xC1, 0xA0, /* 0xE0-0xE3 */
+	0xC2, 0x40, 0xF4, 0xE3, 0xF4, 0xE5, 0xC2, 0x41, /* 0xE4-0xE7 */
+	0xC2, 0x42, 0xF4, 0xE6, 0xC2, 0x43, 0xC2, 0x44, /* 0xE8-0xEB */
+	0xC2, 0x45, 0xC2, 0x46, 0xF4, 0xE7, 0xC2, 0x47, /* 0xEC-0xEF */
+	0xBA, 0xB2, 0xB0, 0xBF, 0xC2, 0x48, 0xF4, 0xE8, /* 0xF0-0xF3 */
+	0xC2, 0x49, 0xC2, 0x4A, 0xC2, 0x4B, 0xC2, 0x4C, /* 0xF4-0xF7 */
+	0xC2, 0x4D, 0xC2, 0x4E, 0xC2, 0x4F, 0xB7, 0xAD, /* 0xF8-0xFB */
+	0xD2, 0xED, 0xC2, 0x50, 0xC2, 0x51, 0xC2, 0x52, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_80[512] = {
+	0xD2, 0xAB, 0xC0, 0xCF, 0xC2, 0x53, 0xBF, 0xBC, /* 0x00-0x03 */
+	0xEB, 0xA3, 0xD5, 0xDF, 0xEA, 0xC8, 0xC2, 0x54, /* 0x04-0x07 */
+	0xC2, 0x55, 0xC2, 0x56, 0xC2, 0x57, 0xF1, 0xF3, /* 0x08-0x0B */
+	0xB6, 0xF8, 0xCB, 0xA3, 0xC2, 0x58, 0xC2, 0x59, /* 0x0C-0x0F */
+	0xC4, 0xCD, 0xC2, 0x5A, 0xF1, 0xE7, 0xC2, 0x5B, /* 0x10-0x13 */
+	0xF1, 0xE8, 0xB8, 0xFB, 0xF1, 0xE9, 0xBA, 0xC4, /* 0x14-0x17 */
+	0xD4, 0xC5, 0xB0, 0xD2, 0xC2, 0x5C, 0xC2, 0x5D, /* 0x18-0x1B */
+	0xF1, 0xEA, 0xC2, 0x5E, 0xC2, 0x5F, 0xC2, 0x60, /* 0x1C-0x1F */
+	0xF1, 0xEB, 0xC2, 0x61, 0xF1, 0xEC, 0xC2, 0x62, /* 0x20-0x23 */
+	0xC2, 0x63, 0xF1, 0xED, 0xF1, 0xEE, 0xF1, 0xEF, /* 0x24-0x27 */
+	0xF1, 0xF1, 0xF1, 0xF0, 0xC5, 0xD5, 0xC2, 0x64, /* 0x28-0x2B */
+	0xC2, 0x65, 0xC2, 0x66, 0xC2, 0x67, 0xC2, 0x68, /* 0x2C-0x2F */
+	0xC2, 0x69, 0xF1, 0xF2, 0xC2, 0x6A, 0xB6, 0xFA, /* 0x30-0x33 */
+	0xC2, 0x6B, 0xF1, 0xF4, 0xD2, 0xAE, 0xDE, 0xC7, /* 0x34-0x37 */
+	0xCB, 0xCA, 0xC2, 0x6C, 0xC2, 0x6D, 0xB3, 0xDC, /* 0x38-0x3B */
+	0xC2, 0x6E, 0xB5, 0xA2, 0xC2, 0x6F, 0xB9, 0xA2, /* 0x3C-0x3F */
+	0xC2, 0x70, 0xC2, 0x71, 0xC4, 0xF4, 0xF1, 0xF5, /* 0x40-0x43 */
+	0xC2, 0x72, 0xC2, 0x73, 0xF1, 0xF6, 0xC2, 0x74, /* 0x44-0x47 */
+	0xC2, 0x75, 0xC2, 0x76, 0xC1, 0xC4, 0xC1, 0xFB, /* 0x48-0x4B */
+	0xD6, 0xB0, 0xF1, 0xF7, 0xC2, 0x77, 0xC2, 0x78, /* 0x4C-0x4F */
+	0xC2, 0x79, 0xC2, 0x7A, 0xF1, 0xF8, 0xC2, 0x7B, /* 0x50-0x53 */
+	0xC1, 0xAA, 0xC2, 0x7C, 0xC2, 0x7D, 0xC2, 0x7E, /* 0x54-0x57 */
+	0xC6, 0xB8, 0xC2, 0x80, 0xBE, 0xDB, 0xC2, 0x81, /* 0x58-0x5B */
+	0xC2, 0x82, 0xC2, 0x83, 0xC2, 0x84, 0xC2, 0x85, /* 0x5C-0x5F */
+	0xC2, 0x86, 0xC2, 0x87, 0xC2, 0x88, 0xC2, 0x89, /* 0x60-0x63 */
+	0xC2, 0x8A, 0xC2, 0x8B, 0xC2, 0x8C, 0xC2, 0x8D, /* 0x64-0x67 */
+	0xC2, 0x8E, 0xF1, 0xF9, 0xB4, 0xCF, 0xC2, 0x8F, /* 0x68-0x6B */
+	0xC2, 0x90, 0xC2, 0x91, 0xC2, 0x92, 0xC2, 0x93, /* 0x6C-0x6F */
+	0xC2, 0x94, 0xF1, 0xFA, 0xC2, 0x95, 0xC2, 0x96, /* 0x70-0x73 */
+	0xC2, 0x97, 0xC2, 0x98, 0xC2, 0x99, 0xC2, 0x9A, /* 0x74-0x77 */
+	0xC2, 0x9B, 0xC2, 0x9C, 0xC2, 0x9D, 0xC2, 0x9E, /* 0x78-0x7B */
+	0xC2, 0x9F, 0xC2, 0xA0, 0xC3, 0x40, 0xED, 0xB2, /* 0x7C-0x7F */
+	
+	0xED, 0xB1, 0xC3, 0x41, 0xC3, 0x42, 0xCB, 0xE0, /* 0x80-0x83 */
+	0xD2, 0xDE, 0xC3, 0x43, 0xCB, 0xC1, 0xD5, 0xD8, /* 0x84-0x87 */
+	0xC3, 0x44, 0xC8, 0xE2, 0xC3, 0x45, 0xC0, 0xDF, /* 0x88-0x8B */
+	0xBC, 0xA1, 0xC3, 0x46, 0xC3, 0x47, 0xC3, 0x48, /* 0x8C-0x8F */
+	0xC3, 0x49, 0xC3, 0x4A, 0xC3, 0x4B, 0xEB, 0xC1, /* 0x90-0x93 */
+	0xC3, 0x4C, 0xC3, 0x4D, 0xD0, 0xA4, 0xC3, 0x4E, /* 0x94-0x97 */
+	0xD6, 0xE2, 0xC3, 0x4F, 0xB6, 0xC7, 0xB8, 0xD8, /* 0x98-0x9B */
+	0xEB, 0xC0, 0xB8, 0xCE, 0xC3, 0x50, 0xEB, 0xBF, /* 0x9C-0x9F */
+	0xB3, 0xA6, 0xB9, 0xC9, 0xD6, 0xAB, 0xC3, 0x51, /* 0xA0-0xA3 */
+	0xB7, 0xF4, 0xB7, 0xCA, 0xC3, 0x52, 0xC3, 0x53, /* 0xA4-0xA7 */
+	0xC3, 0x54, 0xBC, 0xE7, 0xB7, 0xBE, 0xEB, 0xC6, /* 0xA8-0xAB */
+	0xC3, 0x55, 0xEB, 0xC7, 0xB0, 0xB9, 0xBF, 0xCF, /* 0xAC-0xAF */
+	0xC3, 0x56, 0xEB, 0xC5, 0xD3, 0xFD, 0xC3, 0x57, /* 0xB0-0xB3 */
+	0xEB, 0xC8, 0xC3, 0x58, 0xC3, 0x59, 0xEB, 0xC9, /* 0xB4-0xB7 */
+	0xC3, 0x5A, 0xC3, 0x5B, 0xB7, 0xCE, 0xC3, 0x5C, /* 0xB8-0xBB */
+	0xEB, 0xC2, 0xEB, 0xC4, 0xC9, 0xF6, 0xD6, 0xD7, /* 0xBC-0xBF */
+	0xD5, 0xCD, 0xD0, 0xB2, 0xEB, 0xCF, 0xCE, 0xB8, /* 0xC0-0xC3 */
+	0xEB, 0xD0, 0xC3, 0x5D, 0xB5, 0xA8, 0xC3, 0x5E, /* 0xC4-0xC7 */
+	0xC3, 0x5F, 0xC3, 0x60, 0xC3, 0x61, 0xC3, 0x62, /* 0xC8-0xCB */
+	0xB1, 0xB3, 0xEB, 0xD2, 0xCC, 0xA5, 0xC3, 0x63, /* 0xCC-0xCF */
+	0xC3, 0x64, 0xC3, 0x65, 0xC3, 0x66, 0xC3, 0x67, /* 0xD0-0xD3 */
+	0xC3, 0x68, 0xC3, 0x69, 0xC5, 0xD6, 0xEB, 0xD3, /* 0xD4-0xD7 */
+	0xC3, 0x6A, 0xEB, 0xD1, 0xC5, 0xDF, 0xEB, 0xCE, /* 0xD8-0xDB */
+	0xCA, 0xA4, 0xEB, 0xD5, 0xB0, 0xFB, 0xC3, 0x6B, /* 0xDC-0xDF */
+	0xC3, 0x6C, 0xBA, 0xFA, 0xC3, 0x6D, 0xC3, 0x6E, /* 0xE0-0xE3 */
+	0xD8, 0xB7, 0xF1, 0xE3, 0xC3, 0x6F, 0xEB, 0xCA, /* 0xE4-0xE7 */
+	0xEB, 0xCB, 0xEB, 0xCC, 0xEB, 0xCD, 0xEB, 0xD6, /* 0xE8-0xEB */
+	0xE6, 0xC0, 0xEB, 0xD9, 0xC3, 0x70, 0xBF, 0xE8, /* 0xEC-0xEF */
+	0xD2, 0xC8, 0xEB, 0xD7, 0xEB, 0xDC, 0xB8, 0xEC, /* 0xF0-0xF3 */
+	0xEB, 0xD8, 0xC3, 0x71, 0xBD, 0xBA, 0xC3, 0x72, /* 0xF4-0xF7 */
+	0xD0, 0xD8, 0xC3, 0x73, 0xB0, 0xB7, 0xC3, 0x74, /* 0xF8-0xFB */
+	0xEB, 0xDD, 0xC4, 0xDC, 0xC3, 0x75, 0xC3, 0x76, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_81[512] = {
+	0xC3, 0x77, 0xC3, 0x78, 0xD6, 0xAC, 0xC3, 0x79, /* 0x00-0x03 */
+	0xC3, 0x7A, 0xC3, 0x7B, 0xB4, 0xE0, 0xC3, 0x7C, /* 0x04-0x07 */
+	0xC3, 0x7D, 0xC2, 0xF6, 0xBC, 0xB9, 0xC3, 0x7E, /* 0x08-0x0B */
+	0xC3, 0x80, 0xEB, 0xDA, 0xEB, 0xDB, 0xD4, 0xE0, /* 0x0C-0x0F */
+	0xC6, 0xEA, 0xC4, 0xD4, 0xEB, 0xDF, 0xC5, 0xA7, /* 0x10-0x13 */
+	0xD9, 0xF5, 0xC3, 0x81, 0xB2, 0xB1, 0xC3, 0x82, /* 0x14-0x17 */
+	0xEB, 0xE4, 0xC3, 0x83, 0xBD, 0xC5, 0xC3, 0x84, /* 0x18-0x1B */
+	0xC3, 0x85, 0xC3, 0x86, 0xEB, 0xE2, 0xC3, 0x87, /* 0x1C-0x1F */
+	0xC3, 0x88, 0xC3, 0x89, 0xC3, 0x8A, 0xC3, 0x8B, /* 0x20-0x23 */
+	0xC3, 0x8C, 0xC3, 0x8D, 0xC3, 0x8E, 0xC3, 0x8F, /* 0x24-0x27 */
+	0xC3, 0x90, 0xC3, 0x91, 0xC3, 0x92, 0xC3, 0x93, /* 0x28-0x2B */
+	0xEB, 0xE3, 0xC3, 0x94, 0xC3, 0x95, 0xB8, 0xAC, /* 0x2C-0x2F */
+	0xC3, 0x96, 0xCD, 0xD1, 0xEB, 0xE5, 0xC3, 0x97, /* 0x30-0x33 */
+	0xC3, 0x98, 0xC3, 0x99, 0xEB, 0xE1, 0xC3, 0x9A, /* 0x34-0x37 */
+	0xC1, 0xB3, 0xC3, 0x9B, 0xC3, 0x9C, 0xC3, 0x9D, /* 0x38-0x3B */
+	0xC3, 0x9E, 0xC3, 0x9F, 0xC6, 0xA2, 0xC3, 0xA0, /* 0x3C-0x3F */
+	0xC4, 0x40, 0xC4, 0x41, 0xC4, 0x42, 0xC4, 0x43, /* 0x40-0x43 */
+	0xC4, 0x44, 0xC4, 0x45, 0xCC, 0xF3, 0xC4, 0x46, /* 0x44-0x47 */
+	0xEB, 0xE6, 0xC4, 0x47, 0xC0, 0xB0, 0xD2, 0xB8, /* 0x48-0x4B */
+	0xEB, 0xE7, 0xC4, 0x48, 0xC4, 0x49, 0xC4, 0x4A, /* 0x4C-0x4F */
+	0xB8, 0xAF, 0xB8, 0xAD, 0xC4, 0x4B, 0xEB, 0xE8, /* 0x50-0x53 */
+	0xC7, 0xBB, 0xCD, 0xF3, 0xC4, 0x4C, 0xC4, 0x4D, /* 0x54-0x57 */
+	0xC4, 0x4E, 0xEB, 0xEA, 0xEB, 0xEB, 0xC4, 0x4F, /* 0x58-0x5B */
+	0xC4, 0x50, 0xC4, 0x51, 0xC4, 0x52, 0xC4, 0x53, /* 0x5C-0x5F */
+	0xEB, 0xED, 0xC4, 0x54, 0xC4, 0x55, 0xC4, 0x56, /* 0x60-0x63 */
+	0xC4, 0x57, 0xD0, 0xC8, 0xC4, 0x58, 0xEB, 0xF2, /* 0x64-0x67 */
+	0xC4, 0x59, 0xEB, 0xEE, 0xC4, 0x5A, 0xC4, 0x5B, /* 0x68-0x6B */
+	0xC4, 0x5C, 0xEB, 0xF1, 0xC8, 0xF9, 0xC4, 0x5D, /* 0x6C-0x6F */
+	0xD1, 0xFC, 0xEB, 0xEC, 0xC4, 0x5E, 0xC4, 0x5F, /* 0x70-0x73 */
+	0xEB, 0xE9, 0xC4, 0x60, 0xC4, 0x61, 0xC4, 0x62, /* 0x74-0x77 */
+	0xC4, 0x63, 0xB8, 0xB9, 0xCF, 0xD9, 0xC4, 0xE5, /* 0x78-0x7B */
+	0xEB, 0xEF, 0xEB, 0xF0, 0xCC, 0xDA, 0xCD, 0xC8, /* 0x7C-0x7F */
+	
+	0xB0, 0xF2, 0xC4, 0x64, 0xEB, 0xF6, 0xC4, 0x65, /* 0x80-0x83 */
+	0xC4, 0x66, 0xC4, 0x67, 0xC4, 0x68, 0xC4, 0x69, /* 0x84-0x87 */
+	0xEB, 0xF5, 0xC4, 0x6A, 0xB2, 0xB2, 0xC4, 0x6B, /* 0x88-0x8B */
+	0xC4, 0x6C, 0xC4, 0x6D, 0xC4, 0x6E, 0xB8, 0xE0, /* 0x8C-0x8F */
+	0xC4, 0x6F, 0xEB, 0xF7, 0xC4, 0x70, 0xC4, 0x71, /* 0x90-0x93 */
+	0xC4, 0x72, 0xC4, 0x73, 0xC4, 0x74, 0xC4, 0x75, /* 0x94-0x97 */
+	0xB1, 0xEC, 0xC4, 0x76, 0xC4, 0x77, 0xCC, 0xC5, /* 0x98-0x9B */
+	0xC4, 0xA4, 0xCF, 0xA5, 0xC4, 0x78, 0xC4, 0x79, /* 0x9C-0x9F */
+	0xC4, 0x7A, 0xC4, 0x7B, 0xC4, 0x7C, 0xEB, 0xF9, /* 0xA0-0xA3 */
+	0xC4, 0x7D, 0xC4, 0x7E, 0xEC, 0xA2, 0xC4, 0x80, /* 0xA4-0xA7 */
+	0xC5, 0xF2, 0xC4, 0x81, 0xEB, 0xFA, 0xC4, 0x82, /* 0xA8-0xAB */
+	0xC4, 0x83, 0xC4, 0x84, 0xC4, 0x85, 0xC4, 0x86, /* 0xAC-0xAF */
+	0xC4, 0x87, 0xC4, 0x88, 0xC4, 0x89, 0xC9, 0xC5, /* 0xB0-0xB3 */
+	0xC4, 0x8A, 0xC4, 0x8B, 0xC4, 0x8C, 0xC4, 0x8D, /* 0xB4-0xB7 */
+	0xC4, 0x8E, 0xC4, 0x8F, 0xE2, 0xDF, 0xEB, 0xFE, /* 0xB8-0xBB */
+	0xC4, 0x90, 0xC4, 0x91, 0xC4, 0x92, 0xC4, 0x93, /* 0xBC-0xBF */
+	0xCD, 0xCE, 0xEC, 0xA1, 0xB1, 0xDB, 0xD3, 0xB7, /* 0xC0-0xC3 */
+	0xC4, 0x94, 0xC4, 0x95, 0xD2, 0xDC, 0xC4, 0x96, /* 0xC4-0xC7 */
+	0xC4, 0x97, 0xC4, 0x98, 0xEB, 0xFD, 0xC4, 0x99, /* 0xC8-0xCB */
+	0xEB, 0xFB, 0xC4, 0x9A, 0xC4, 0x9B, 0xC4, 0x9C, /* 0xCC-0xCF */
+	0xC4, 0x9D, 0xC4, 0x9E, 0xC4, 0x9F, 0xC4, 0xA0, /* 0xD0-0xD3 */
+	0xC5, 0x40, 0xC5, 0x41, 0xC5, 0x42, 0xC5, 0x43, /* 0xD4-0xD7 */
+	0xC5, 0x44, 0xC5, 0x45, 0xC5, 0x46, 0xC5, 0x47, /* 0xD8-0xDB */
+	0xC5, 0x48, 0xC5, 0x49, 0xC5, 0x4A, 0xC5, 0x4B, /* 0xDC-0xDF */
+	0xC5, 0x4C, 0xC5, 0x4D, 0xC5, 0x4E, 0xB3, 0xBC, /* 0xE0-0xE3 */
+	0xC5, 0x4F, 0xC5, 0x50, 0xC5, 0x51, 0xEA, 0xB0, /* 0xE4-0xE7 */
+	0xC5, 0x52, 0xC5, 0x53, 0xD7, 0xD4, 0xC5, 0x54, /* 0xE8-0xEB */
+	0xF4, 0xAB, 0xB3, 0xF4, 0xC5, 0x55, 0xC5, 0x56, /* 0xEC-0xEF */
+	0xC5, 0x57, 0xC5, 0x58, 0xC5, 0x59, 0xD6, 0xC1, /* 0xF0-0xF3 */
+	0xD6, 0xC2, 0xC5, 0x5A, 0xC5, 0x5B, 0xC5, 0x5C, /* 0xF4-0xF7 */
+	0xC5, 0x5D, 0xC5, 0x5E, 0xC5, 0x5F, 0xD5, 0xE9, /* 0xF8-0xFB */
+	0xBE, 0xCA, 0xC5, 0x60, 0xF4, 0xA7, 0xC5, 0x61, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_82[512] = {
+	0xD2, 0xA8, 0xF4, 0xA8, 0xF4, 0xA9, 0xC5, 0x62, /* 0x00-0x03 */
+	0xF4, 0xAA, 0xBE, 0xCB, 0xD3, 0xDF, 0xC5, 0x63, /* 0x04-0x07 */
+	0xC5, 0x64, 0xC5, 0x65, 0xC5, 0x66, 0xC5, 0x67, /* 0x08-0x0B */
+	0xC9, 0xE0, 0xC9, 0xE1, 0xC5, 0x68, 0xC5, 0x69, /* 0x0C-0x0F */
+	0xF3, 0xC2, 0xC5, 0x6A, 0xCA, 0xE6, 0xC5, 0x6B, /* 0x10-0x13 */
+	0xCC, 0xF2, 0xC5, 0x6C, 0xC5, 0x6D, 0xC5, 0x6E, /* 0x14-0x17 */
+	0xC5, 0x6F, 0xC5, 0x70, 0xC5, 0x71, 0xE2, 0xB6, /* 0x18-0x1B */
+	0xCB, 0xB4, 0xC5, 0x72, 0xCE, 0xE8, 0xD6, 0xDB, /* 0x1C-0x1F */
+	0xC5, 0x73, 0xF4, 0xAD, 0xF4, 0xAE, 0xF4, 0xAF, /* 0x20-0x23 */
+	0xC5, 0x74, 0xC5, 0x75, 0xC5, 0x76, 0xC5, 0x77, /* 0x24-0x27 */
+	0xF4, 0xB2, 0xC5, 0x78, 0xBA, 0xBD, 0xF4, 0xB3, /* 0x28-0x2B */
+	0xB0, 0xE3, 0xF4, 0xB0, 0xC5, 0x79, 0xF4, 0xB1, /* 0x2C-0x2F */
+	0xBD, 0xA2, 0xB2, 0xD5, 0xC5, 0x7A, 0xF4, 0xB6, /* 0x30-0x33 */
+	0xF4, 0xB7, 0xB6, 0xE6, 0xB2, 0xB0, 0xCF, 0xCF, /* 0x34-0x37 */
+	0xF4, 0xB4, 0xB4, 0xAC, 0xC5, 0x7B, 0xF4, 0xB5, /* 0x38-0x3B */
+	0xC5, 0x7C, 0xC5, 0x7D, 0xF4, 0xB8, 0xC5, 0x7E, /* 0x3C-0x3F */
+	0xC5, 0x80, 0xC5, 0x81, 0xC5, 0x82, 0xC5, 0x83, /* 0x40-0x43 */
+	0xF4, 0xB9, 0xC5, 0x84, 0xC5, 0x85, 0xCD, 0xA7, /* 0x44-0x47 */
+	0xC5, 0x86, 0xF4, 0xBA, 0xC5, 0x87, 0xF4, 0xBB, /* 0x48-0x4B */
+	0xC5, 0x88, 0xC5, 0x89, 0xC5, 0x8A, 0xF4, 0xBC, /* 0x4C-0x4F */
+	0xC5, 0x8B, 0xC5, 0x8C, 0xC5, 0x8D, 0xC5, 0x8E, /* 0x50-0x53 */
+	0xC5, 0x8F, 0xC5, 0x90, 0xC5, 0x91, 0xC5, 0x92, /* 0x54-0x57 */
+	0xCB, 0xD2, 0xC5, 0x93, 0xF4, 0xBD, 0xC5, 0x94, /* 0x58-0x5B */
+	0xC5, 0x95, 0xC5, 0x96, 0xC5, 0x97, 0xF4, 0xBE, /* 0x5C-0x5F */
+	0xC5, 0x98, 0xC5, 0x99, 0xC5, 0x9A, 0xC5, 0x9B, /* 0x60-0x63 */
+	0xC5, 0x9C, 0xC5, 0x9D, 0xC5, 0x9E, 0xC5, 0x9F, /* 0x64-0x67 */
+	0xF4, 0xBF, 0xC5, 0xA0, 0xC6, 0x40, 0xC6, 0x41, /* 0x68-0x6B */
+	0xC6, 0x42, 0xC6, 0x43, 0xF4, 0xDE, 0xC1, 0xBC, /* 0x6C-0x6F */
+	0xBC, 0xE8, 0xC6, 0x44, 0xC9, 0xAB, 0xD1, 0xDE, /* 0x70-0x73 */
+	0xE5, 0xF5, 0xC6, 0x45, 0xC6, 0x46, 0xC6, 0x47, /* 0x74-0x77 */
+	0xC6, 0x48, 0xDC, 0xB3, 0xD2, 0xD5, 0xC6, 0x49, /* 0x78-0x7B */
+	0xC6, 0x4A, 0xDC, 0xB4, 0xB0, 0xAC, 0xDC, 0xB5, /* 0x7C-0x7F */
+	
+	0xC6, 0x4B, 0xC6, 0x4C, 0xBD, 0xDA, 0xC6, 0x4D, /* 0x80-0x83 */
+	0xDC, 0xB9, 0xC6, 0x4E, 0xC6, 0x4F, 0xC6, 0x50, /* 0x84-0x87 */
+	0xD8, 0xC2, 0xC6, 0x51, 0xDC, 0xB7, 0xD3, 0xF3, /* 0x88-0x8B */
+	0xC6, 0x52, 0xC9, 0xD6, 0xDC, 0xBA, 0xDC, 0xB6, /* 0x8C-0x8F */
+	0xC6, 0x53, 0xDC, 0xBB, 0xC3, 0xA2, 0xC6, 0x54, /* 0x90-0x93 */
+	0xC6, 0x55, 0xC6, 0x56, 0xC6, 0x57, 0xDC, 0xBC, /* 0x94-0x97 */
+	0xDC, 0xC5, 0xDC, 0xBD, 0xC6, 0x58, 0xC6, 0x59, /* 0x98-0x9B */
+	0xCE, 0xDF, 0xD6, 0xA5, 0xC6, 0x5A, 0xDC, 0xCF, /* 0x9C-0x9F */
+	0xC6, 0x5B, 0xDC, 0xCD, 0xC6, 0x5C, 0xC6, 0x5D, /* 0xA0-0xA3 */
+	0xDC, 0xD2, 0xBD, 0xE6, 0xC2, 0xAB, 0xC6, 0x5E, /* 0xA4-0xA7 */
+	0xDC, 0xB8, 0xDC, 0xCB, 0xDC, 0xCE, 0xDC, 0xBE, /* 0xA8-0xAB */
+	0xB7, 0xD2, 0xB0, 0xC5, 0xDC, 0xC7, 0xD0, 0xBE, /* 0xAC-0xAF */
+	0xDC, 0xC1, 0xBB, 0xA8, 0xC6, 0x5F, 0xB7, 0xBC, /* 0xB0-0xB3 */
+	0xDC, 0xCC, 0xC6, 0x60, 0xC6, 0x61, 0xDC, 0xC6, /* 0xB4-0xB7 */
+	0xDC, 0xBF, 0xC7, 0xDB, 0xC6, 0x62, 0xC6, 0x63, /* 0xB8-0xBB */
+	0xC6, 0x64, 0xD1, 0xBF, 0xDC, 0xC0, 0xC6, 0x65, /* 0xBC-0xBF */
+	0xC6, 0x66, 0xDC, 0xCA, 0xC6, 0x67, 0xC6, 0x68, /* 0xC0-0xC3 */
+	0xDC, 0xD0, 0xC6, 0x69, 0xC6, 0x6A, 0xCE, 0xAD, /* 0xC4-0xC7 */
+	0xDC, 0xC2, 0xC6, 0x6B, 0xDC, 0xC3, 0xDC, 0xC8, /* 0xC8-0xCB */
+	0xDC, 0xC9, 0xB2, 0xD4, 0xDC, 0xD1, 0xCB, 0xD5, /* 0xCC-0xCF */
+	0xC6, 0x6C, 0xD4, 0xB7, 0xDC, 0xDB, 0xDC, 0xDF, /* 0xD0-0xD3 */
+	0xCC, 0xA6, 0xDC, 0xE6, 0xC6, 0x6D, 0xC3, 0xE7, /* 0xD4-0xD7 */
+	0xDC, 0xDC, 0xC6, 0x6E, 0xC6, 0x6F, 0xBF, 0xC1, /* 0xD8-0xDB */
+	0xDC, 0xD9, 0xC6, 0x70, 0xB0, 0xFA, 0xB9, 0xB6, /* 0xDC-0xDF */
+	0xDC, 0xE5, 0xDC, 0xD3, 0xC6, 0x71, 0xDC, 0xC4, /* 0xE0-0xE3 */
+	0xDC, 0xD6, 0xC8, 0xF4, 0xBF, 0xE0, 0xC6, 0x72, /* 0xE4-0xE7 */
+	0xC6, 0x73, 0xC6, 0x74, 0xC6, 0x75, 0xC9, 0xBB, /* 0xE8-0xEB */
+	0xC6, 0x76, 0xC6, 0x77, 0xC6, 0x78, 0xB1, 0xBD, /* 0xEC-0xEF */
+	0xC6, 0x79, 0xD3, 0xA2, 0xC6, 0x7A, 0xC6, 0x7B, /* 0xF0-0xF3 */
+	0xDC, 0xDA, 0xC6, 0x7C, 0xC6, 0x7D, 0xDC, 0xD5, /* 0xF4-0xF7 */
+	0xC6, 0x7E, 0xC6, 0xBB, 0xC6, 0x80, 0xDC, 0xDE, /* 0xF8-0xFB */
+	0xC6, 0x81, 0xC6, 0x82, 0xC6, 0x83, 0xC6, 0x84, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_83[512] = {
+	0xC6, 0x85, 0xD7, 0xC2, 0xC3, 0xAF, 0xB7, 0xB6, /* 0x00-0x03 */
+	0xC7, 0xD1, 0xC3, 0xA9, 0xDC, 0xE2, 0xDC, 0xD8, /* 0x04-0x07 */
+	0xDC, 0xEB, 0xDC, 0xD4, 0xC6, 0x86, 0xC6, 0x87, /* 0x08-0x0B */
+	0xDC, 0xDD, 0xC6, 0x88, 0xBE, 0xA5, 0xDC, 0xD7, /* 0x0C-0x0F */
+	0xC6, 0x89, 0xDC, 0xE0, 0xC6, 0x8A, 0xC6, 0x8B, /* 0x10-0x13 */
+	0xDC, 0xE3, 0xDC, 0xE4, 0xC6, 0x8C, 0xDC, 0xF8, /* 0x14-0x17 */
+	0xC6, 0x8D, 0xC6, 0x8E, 0xDC, 0xE1, 0xDD, 0xA2, /* 0x18-0x1B */
+	0xDC, 0xE7, 0xC6, 0x8F, 0xC6, 0x90, 0xC6, 0x91, /* 0x1C-0x1F */
+	0xC6, 0x92, 0xC6, 0x93, 0xC6, 0x94, 0xC6, 0x95, /* 0x20-0x23 */
+	0xC6, 0x96, 0xC6, 0x97, 0xC6, 0x98, 0xBC, 0xEB, /* 0x24-0x27 */
+	0xB4, 0xC4, 0xC6, 0x99, 0xC6, 0x9A, 0xC3, 0xA3, /* 0x28-0x2B */
+	0xB2, 0xE7, 0xDC, 0xFA, 0xC6, 0x9B, 0xDC, 0xF2, /* 0x2C-0x2F */
+	0xC6, 0x9C, 0xDC, 0xEF, 0xC6, 0x9D, 0xDC, 0xFC, /* 0x30-0x33 */
+	0xDC, 0xEE, 0xD2, 0xF0, 0xB2, 0xE8, 0xC6, 0x9E, /* 0x34-0x37 */
+	0xC8, 0xD7, 0xC8, 0xE3, 0xDC, 0xFB, 0xC6, 0x9F, /* 0x38-0x3B */
+	0xDC, 0xED, 0xC6, 0xA0, 0xC7, 0x40, 0xC7, 0x41, /* 0x3C-0x3F */
+	0xDC, 0xF7, 0xC7, 0x42, 0xC7, 0x43, 0xDC, 0xF5, /* 0x40-0x43 */
+	0xC7, 0x44, 0xC7, 0x45, 0xBE, 0xA3, 0xDC, 0xF4, /* 0x44-0x47 */
+	0xC7, 0x46, 0xB2, 0xDD, 0xC7, 0x47, 0xC7, 0x48, /* 0x48-0x4B */
+	0xC7, 0x49, 0xC7, 0x4A, 0xC7, 0x4B, 0xDC, 0xF3, /* 0x4C-0x4F */
+	0xBC, 0xF6, 0xDC, 0xE8, 0xBB, 0xC4, 0xC7, 0x4C, /* 0x50-0x53 */
+	0xC0, 0xF3, 0xC7, 0x4D, 0xC7, 0x4E, 0xC7, 0x4F, /* 0x54-0x57 */
+	0xC7, 0x50, 0xC7, 0x51, 0xBC, 0xD4, 0xDC, 0xE9, /* 0x58-0x5B */
+	0xDC, 0xEA, 0xC7, 0x52, 0xDC, 0xF1, 0xDC, 0xF6, /* 0x5C-0x5F */
+	0xDC, 0xF9, 0xB5, 0xB4, 0xC7, 0x53, 0xC8, 0xD9, /* 0x60-0x63 */
+	0xBB, 0xE7, 0xDC, 0xFE, 0xDC, 0xFD, 0xD3, 0xAB, /* 0x64-0x67 */
+	0xDD, 0xA1, 0xDD, 0xA3, 0xDD, 0xA5, 0xD2, 0xF1, /* 0x68-0x6B */
+	0xDD, 0xA4, 0xDD, 0xA6, 0xDD, 0xA7, 0xD2, 0xA9, /* 0x6C-0x6F */
+	0xC7, 0x54, 0xC7, 0x55, 0xC7, 0x56, 0xC7, 0x57, /* 0x70-0x73 */
+	0xC7, 0x58, 0xC7, 0x59, 0xC7, 0x5A, 0xBA, 0xC9, /* 0x74-0x77 */
+	0xDD, 0xA9, 0xC7, 0x5B, 0xC7, 0x5C, 0xDD, 0xB6, /* 0x78-0x7B */
+	0xDD, 0xB1, 0xDD, 0xB4, 0xC7, 0x5D, 0xC7, 0x5E, /* 0x7C-0x7F */
+	
+	0xC7, 0x5F, 0xC7, 0x60, 0xC7, 0x61, 0xC7, 0x62, /* 0x80-0x83 */
+	0xC7, 0x63, 0xDD, 0xB0, 0xC6, 0xCE, 0xC7, 0x64, /* 0x84-0x87 */
+	0xC7, 0x65, 0xC0, 0xF2, 0xC7, 0x66, 0xC7, 0x67, /* 0x88-0x8B */
+	0xC7, 0x68, 0xC7, 0x69, 0xC9, 0xAF, 0xC7, 0x6A, /* 0x8C-0x8F */
+	0xC7, 0x6B, 0xC7, 0x6C, 0xDC, 0xEC, 0xDD, 0xAE, /* 0x90-0x93 */
+	0xC7, 0x6D, 0xC7, 0x6E, 0xC7, 0x6F, 0xC7, 0x70, /* 0x94-0x97 */
+	0xDD, 0xB7, 0xC7, 0x71, 0xC7, 0x72, 0xDC, 0xF0, /* 0x98-0x9B */
+	0xDD, 0xAF, 0xC7, 0x73, 0xDD, 0xB8, 0xC7, 0x74, /* 0x9C-0x9F */
+	0xDD, 0xAC, 0xC7, 0x75, 0xC7, 0x76, 0xC7, 0x77, /* 0xA0-0xA3 */
+	0xC7, 0x78, 0xC7, 0x79, 0xC7, 0x7A, 0xC7, 0x7B, /* 0xA4-0xA7 */
+	0xDD, 0xB9, 0xDD, 0xB3, 0xDD, 0xAD, 0xC4, 0xAA, /* 0xA8-0xAB */
+	0xC7, 0x7C, 0xC7, 0x7D, 0xC7, 0x7E, 0xC7, 0x80, /* 0xAC-0xAF */
+	0xDD, 0xA8, 0xC0, 0xB3, 0xC1, 0xAB, 0xDD, 0xAA, /* 0xB0-0xB3 */
+	0xDD, 0xAB, 0xC7, 0x81, 0xDD, 0xB2, 0xBB, 0xF1, /* 0xB4-0xB7 */
+	0xDD, 0xB5, 0xD3, 0xA8, 0xDD, 0xBA, 0xC7, 0x82, /* 0xB8-0xBB */
+	0xDD, 0xBB, 0xC3, 0xA7, 0xC7, 0x83, 0xC7, 0x84, /* 0xBC-0xBF */
+	0xDD, 0xD2, 0xDD, 0xBC, 0xC7, 0x85, 0xC7, 0x86, /* 0xC0-0xC3 */
+	0xC7, 0x87, 0xDD, 0xD1, 0xC7, 0x88, 0xB9, 0xBD, /* 0xC4-0xC7 */
+	0xC7, 0x89, 0xC7, 0x8A, 0xBE, 0xD5, 0xC7, 0x8B, /* 0xC8-0xCB */
+	0xBE, 0xFA, 0xC7, 0x8C, 0xC7, 0x8D, 0xBA, 0xCA, /* 0xCC-0xCF */
+	0xC7, 0x8E, 0xC7, 0x8F, 0xC7, 0x90, 0xC7, 0x91, /* 0xD0-0xD3 */
+	0xDD, 0xCA, 0xC7, 0x92, 0xDD, 0xC5, 0xC7, 0x93, /* 0xD4-0xD7 */
+	0xDD, 0xBF, 0xC7, 0x94, 0xC7, 0x95, 0xC7, 0x96, /* 0xD8-0xDB */
+	0xB2, 0xCB, 0xDD, 0xC3, 0xC7, 0x97, 0xDD, 0xCB, /* 0xDC-0xDF */
+	0xB2, 0xA4, 0xDD, 0xD5, 0xC7, 0x98, 0xC7, 0x99, /* 0xE0-0xE3 */
+	0xC7, 0x9A, 0xDD, 0xBE, 0xC7, 0x9B, 0xC7, 0x9C, /* 0xE4-0xE7 */
+	0xC7, 0x9D, 0xC6, 0xD0, 0xDD, 0xD0, 0xC7, 0x9E, /* 0xE8-0xEB */
+	0xC7, 0x9F, 0xC7, 0xA0, 0xC8, 0x40, 0xC8, 0x41, /* 0xEC-0xEF */
+	0xDD, 0xD4, 0xC1, 0xE2, 0xB7, 0xC6, 0xC8, 0x42, /* 0xF0-0xF3 */
+	0xC8, 0x43, 0xC8, 0x44, 0xC8, 0x45, 0xC8, 0x46, /* 0xF4-0xF7 */
+	0xDD, 0xCE, 0xDD, 0xCF, 0xC8, 0x47, 0xC8, 0x48, /* 0xF8-0xFB */
+	0xC8, 0x49, 0xDD, 0xC4, 0xC8, 0x4A, 0xC8, 0x4B, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_84[512] = {
+	0xC8, 0x4C, 0xDD, 0xBD, 0xC8, 0x4D, 0xDD, 0xCD, /* 0x00-0x03 */
+	0xCC, 0xD1, 0xC8, 0x4E, 0xDD, 0xC9, 0xC8, 0x4F, /* 0x04-0x07 */
+	0xC8, 0x50, 0xC8, 0x51, 0xC8, 0x52, 0xDD, 0xC2, /* 0x08-0x0B */
+	0xC3, 0xC8, 0xC6, 0xBC, 0xCE, 0xAE, 0xDD, 0xCC, /* 0x0C-0x0F */
+	0xC8, 0x53, 0xDD, 0xC8, 0xC8, 0x54, 0xC8, 0x55, /* 0x10-0x13 */
+	0xC8, 0x56, 0xC8, 0x57, 0xC8, 0x58, 0xC8, 0x59, /* 0x14-0x17 */
+	0xDD, 0xC1, 0xC8, 0x5A, 0xC8, 0x5B, 0xC8, 0x5C, /* 0x18-0x1B */
+	0xDD, 0xC6, 0xC2, 0xDC, 0xC8, 0x5D, 0xC8, 0x5E, /* 0x1C-0x1F */
+	0xC8, 0x5F, 0xC8, 0x60, 0xC8, 0x61, 0xC8, 0x62, /* 0x20-0x23 */
+	0xD3, 0xA9, 0xD3, 0xAA, 0xDD, 0xD3, 0xCF, 0xF4, /* 0x24-0x27 */
+	0xC8, 0xF8, 0xC8, 0x63, 0xC8, 0x64, 0xC8, 0x65, /* 0x28-0x2B */
+	0xC8, 0x66, 0xC8, 0x67, 0xC8, 0x68, 0xC8, 0x69, /* 0x2C-0x2F */
+	0xC8, 0x6A, 0xDD, 0xE6, 0xC8, 0x6B, 0xC8, 0x6C, /* 0x30-0x33 */
+	0xC8, 0x6D, 0xC8, 0x6E, 0xC8, 0x6F, 0xC8, 0x70, /* 0x34-0x37 */
+	0xDD, 0xC7, 0xC8, 0x71, 0xC8, 0x72, 0xC8, 0x73, /* 0x38-0x3B */
+	0xDD, 0xE0, 0xC2, 0xE4, 0xC8, 0x74, 0xC8, 0x75, /* 0x3C-0x3F */
+	0xC8, 0x76, 0xC8, 0x77, 0xC8, 0x78, 0xC8, 0x79, /* 0x40-0x43 */
+	0xC8, 0x7A, 0xC8, 0x7B, 0xDD, 0xE1, 0xC8, 0x7C, /* 0x44-0x47 */
+	0xC8, 0x7D, 0xC8, 0x7E, 0xC8, 0x80, 0xC8, 0x81, /* 0x48-0x4B */
+	0xC8, 0x82, 0xC8, 0x83, 0xC8, 0x84, 0xC8, 0x85, /* 0x4C-0x4F */
+	0xC8, 0x86, 0xDD, 0xD7, 0xC8, 0x87, 0xC8, 0x88, /* 0x50-0x53 */
+	0xC8, 0x89, 0xC8, 0x8A, 0xC8, 0x8B, 0xD6, 0xF8, /* 0x54-0x57 */
+	0xC8, 0x8C, 0xDD, 0xD9, 0xDD, 0xD8, 0xB8, 0xF0, /* 0x58-0x5B */
+	0xDD, 0xD6, 0xC8, 0x8D, 0xC8, 0x8E, 0xC8, 0x8F, /* 0x5C-0x5F */
+	0xC8, 0x90, 0xC6, 0xCF, 0xC8, 0x91, 0xB6, 0xAD, /* 0x60-0x63 */
+	0xC8, 0x92, 0xC8, 0x93, 0xC8, 0x94, 0xC8, 0x95, /* 0x64-0x67 */
+	0xC8, 0x96, 0xDD, 0xE2, 0xC8, 0x97, 0xBA, 0xF9, /* 0x68-0x6B */
+	0xD4, 0xE1, 0xDD, 0xE7, 0xC8, 0x98, 0xC8, 0x99, /* 0x6C-0x6F */
+	0xC8, 0x9A, 0xB4, 0xD0, 0xC8, 0x9B, 0xDD, 0xDA, /* 0x70-0x73 */
+	0xC8, 0x9C, 0xBF, 0xFB, 0xDD, 0xE3, 0xC8, 0x9D, /* 0x74-0x77 */
+	0xDD, 0xDF, 0xC8, 0x9E, 0xDD, 0xDD, 0xC8, 0x9F, /* 0x78-0x7B */
+	0xC8, 0xA0, 0xC9, 0x40, 0xC9, 0x41, 0xC9, 0x42, /* 0x7C-0x7F */
+	
+	0xC9, 0x43, 0xC9, 0x44, 0xB5, 0xD9, 0xC9, 0x45, /* 0x80-0x83 */
+	0xC9, 0x46, 0xC9, 0x47, 0xC9, 0x48, 0xDD, 0xDB, /* 0x84-0x87 */
+	0xDD, 0xDC, 0xDD, 0xDE, 0xC9, 0x49, 0xBD, 0xAF, /* 0x88-0x8B */
+	0xDD, 0xE4, 0xC9, 0x4A, 0xDD, 0xE5, 0xC9, 0x4B, /* 0x8C-0x8F */
+	0xC9, 0x4C, 0xC9, 0x4D, 0xC9, 0x4E, 0xC9, 0x4F, /* 0x90-0x93 */
+	0xC9, 0x50, 0xC9, 0x51, 0xC9, 0x52, 0xDD, 0xF5, /* 0x94-0x97 */
+	0xC9, 0x53, 0xC3, 0xC9, 0xC9, 0x54, 0xC9, 0x55, /* 0x98-0x9B */
+	0xCB, 0xE2, 0xC9, 0x56, 0xC9, 0x57, 0xC9, 0x58, /* 0x9C-0x9F */
+	0xC9, 0x59, 0xDD, 0xF2, 0xC9, 0x5A, 0xC9, 0x5B, /* 0xA0-0xA3 */
+	0xC9, 0x5C, 0xC9, 0x5D, 0xC9, 0x5E, 0xC9, 0x5F, /* 0xA4-0xA7 */
+	0xC9, 0x60, 0xC9, 0x61, 0xC9, 0x62, 0xC9, 0x63, /* 0xA8-0xAB */
+	0xC9, 0x64, 0xC9, 0x65, 0xC9, 0x66, 0xD8, 0xE1, /* 0xAC-0xAF */
+	0xC9, 0x67, 0xC9, 0x68, 0xC6, 0xD1, 0xC9, 0x69, /* 0xB0-0xB3 */
+	0xDD, 0xF4, 0xC9, 0x6A, 0xC9, 0x6B, 0xC9, 0x6C, /* 0xB4-0xB7 */
+	0xD5, 0xF4, 0xDD, 0xF3, 0xDD, 0xF0, 0xC9, 0x6D, /* 0xB8-0xBB */
+	0xC9, 0x6E, 0xDD, 0xEC, 0xC9, 0x6F, 0xDD, 0xEF, /* 0xBC-0xBF */
+	0xC9, 0x70, 0xDD, 0xE8, 0xC9, 0x71, 0xC9, 0x72, /* 0xC0-0xC3 */
+	0xD0, 0xEE, 0xC9, 0x73, 0xC9, 0x74, 0xC9, 0x75, /* 0xC4-0xC7 */
+	0xC9, 0x76, 0xC8, 0xD8, 0xDD, 0xEE, 0xC9, 0x77, /* 0xC8-0xCB */
+	0xC9, 0x78, 0xDD, 0xE9, 0xC9, 0x79, 0xC9, 0x7A, /* 0xCC-0xCF */
+	0xDD, 0xEA, 0xCB, 0xF2, 0xC9, 0x7B, 0xDD, 0xED, /* 0xD0-0xD3 */
+	0xC9, 0x7C, 0xC9, 0x7D, 0xB1, 0xCD, 0xC9, 0x7E, /* 0xD4-0xD7 */
+	0xC9, 0x80, 0xC9, 0x81, 0xC9, 0x82, 0xC9, 0x83, /* 0xD8-0xDB */
+	0xC9, 0x84, 0xC0, 0xB6, 0xC9, 0x85, 0xBC, 0xBB, /* 0xDC-0xDF */
+	0xDD, 0xF1, 0xC9, 0x86, 0xC9, 0x87, 0xDD, 0xF7, /* 0xE0-0xE3 */
+	0xC9, 0x88, 0xDD, 0xF6, 0xDD, 0xEB, 0xC9, 0x89, /* 0xE4-0xE7 */
+	0xC9, 0x8A, 0xC9, 0x8B, 0xC9, 0x8C, 0xC9, 0x8D, /* 0xE8-0xEB */
+	0xC5, 0xEE, 0xC9, 0x8E, 0xC9, 0x8F, 0xC9, 0x90, /* 0xEC-0xEF */
+	0xDD, 0xFB, 0xC9, 0x91, 0xC9, 0x92, 0xC9, 0x93, /* 0xF0-0xF3 */
+	0xC9, 0x94, 0xC9, 0x95, 0xC9, 0x96, 0xC9, 0x97, /* 0xF4-0xF7 */
+	0xC9, 0x98, 0xC9, 0x99, 0xC9, 0x9A, 0xC9, 0x9B, /* 0xF8-0xFB */
+	0xDE, 0xA4, 0xC9, 0x9C, 0xC9, 0x9D, 0xDE, 0xA3, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_85[512] = {
+	0xC9, 0x9E, 0xC9, 0x9F, 0xC9, 0xA0, 0xCA, 0x40, /* 0x00-0x03 */
+	0xCA, 0x41, 0xCA, 0x42, 0xCA, 0x43, 0xCA, 0x44, /* 0x04-0x07 */
+	0xCA, 0x45, 0xCA, 0x46, 0xCA, 0x47, 0xCA, 0x48, /* 0x08-0x0B */
+	0xDD, 0xF8, 0xCA, 0x49, 0xCA, 0x4A, 0xCA, 0x4B, /* 0x0C-0x0F */
+	0xCA, 0x4C, 0xC3, 0xEF, 0xCA, 0x4D, 0xC2, 0xFB, /* 0x10-0x13 */
+	0xCA, 0x4E, 0xCA, 0x4F, 0xCA, 0x50, 0xD5, 0xE1, /* 0x14-0x17 */
+	0xCA, 0x51, 0xCA, 0x52, 0xCE, 0xB5, 0xCA, 0x53, /* 0x18-0x1B */
+	0xCA, 0x54, 0xCA, 0x55, 0xCA, 0x56, 0xDD, 0xFD, /* 0x1C-0x1F */
+	0xCA, 0x57, 0xB2, 0xCC, 0xCA, 0x58, 0xCA, 0x59, /* 0x20-0x23 */
+	0xCA, 0x5A, 0xCA, 0x5B, 0xCA, 0x5C, 0xCA, 0x5D, /* 0x24-0x27 */
+	0xCA, 0x5E, 0xCA, 0x5F, 0xCA, 0x60, 0xC4, 0xE8, /* 0x28-0x2B */
+	0xCA, 0xDF, 0xCA, 0x61, 0xCA, 0x62, 0xCA, 0x63, /* 0x2C-0x2F */
+	0xCA, 0x64, 0xCA, 0x65, 0xCA, 0x66, 0xCA, 0x67, /* 0x30-0x33 */
+	0xCA, 0x68, 0xCA, 0x69, 0xCA, 0x6A, 0xC7, 0xBE, /* 0x34-0x37 */
+	0xDD, 0xFA, 0xDD, 0xFC, 0xDD, 0xFE, 0xDE, 0xA2, /* 0x38-0x3B */
+	0xB0, 0xAA, 0xB1, 0xCE, 0xCA, 0x6B, 0xCA, 0x6C, /* 0x3C-0x3F */
+	0xCA, 0x6D, 0xCA, 0x6E, 0xCA, 0x6F, 0xDE, 0xAC, /* 0x40-0x43 */
+	0xCA, 0x70, 0xCA, 0x71, 0xCA, 0x72, 0xCA, 0x73, /* 0x44-0x47 */
+	0xDE, 0xA6, 0xBD, 0xB6, 0xC8, 0xEF, 0xCA, 0x74, /* 0x48-0x4B */
+	0xCA, 0x75, 0xCA, 0x76, 0xCA, 0x77, 0xCA, 0x78, /* 0x4C-0x4F */
+	0xCA, 0x79, 0xCA, 0x7A, 0xCA, 0x7B, 0xCA, 0x7C, /* 0x50-0x53 */
+	0xCA, 0x7D, 0xCA, 0x7E, 0xDE, 0xA1, 0xCA, 0x80, /* 0x54-0x57 */
+	0xCA, 0x81, 0xDE, 0xA5, 0xCA, 0x82, 0xCA, 0x83, /* 0x58-0x5B */
+	0xCA, 0x84, 0xCA, 0x85, 0xDE, 0xA9, 0xCA, 0x86, /* 0x5C-0x5F */
+	0xCA, 0x87, 0xCA, 0x88, 0xCA, 0x89, 0xCA, 0x8A, /* 0x60-0x63 */
+	0xDE, 0xA8, 0xCA, 0x8B, 0xCA, 0x8C, 0xCA, 0x8D, /* 0x64-0x67 */
+	0xDE, 0xA7, 0xCA, 0x8E, 0xCA, 0x8F, 0xCA, 0x90, /* 0x68-0x6B */
+	0xCA, 0x91, 0xCA, 0x92, 0xCA, 0x93, 0xCA, 0x94, /* 0x6C-0x6F */
+	0xCA, 0x95, 0xCA, 0x96, 0xDE, 0xAD, 0xCA, 0x97, /* 0x70-0x73 */
+	0xD4, 0xCC, 0xCA, 0x98, 0xCA, 0x99, 0xCA, 0x9A, /* 0x74-0x77 */
+	0xCA, 0x9B, 0xDE, 0xB3, 0xDE, 0xAA, 0xDE, 0xAE, /* 0x78-0x7B */
+	0xCA, 0x9C, 0xCA, 0x9D, 0xC0, 0xD9, 0xCA, 0x9E, /* 0x7C-0x7F */
+	
+	0xCA, 0x9F, 0xCA, 0xA0, 0xCB, 0x40, 0xCB, 0x41, /* 0x80-0x83 */
+	0xB1, 0xA1, 0xDE, 0xB6, 0xCB, 0x42, 0xDE, 0xB1, /* 0x84-0x87 */
+	0xCB, 0x43, 0xCB, 0x44, 0xCB, 0x45, 0xCB, 0x46, /* 0x88-0x8B */
+	0xCB, 0x47, 0xCB, 0x48, 0xCB, 0x49, 0xDE, 0xB2, /* 0x8C-0x8F */
+	0xCB, 0x4A, 0xCB, 0x4B, 0xCB, 0x4C, 0xCB, 0x4D, /* 0x90-0x93 */
+	0xCB, 0x4E, 0xCB, 0x4F, 0xCB, 0x50, 0xCB, 0x51, /* 0x94-0x97 */
+	0xCB, 0x52, 0xCB, 0x53, 0xCB, 0x54, 0xD1, 0xA6, /* 0x98-0x9B */
+	0xDE, 0xB5, 0xCB, 0x55, 0xCB, 0x56, 0xCB, 0x57, /* 0x9C-0x9F */
+	0xCB, 0x58, 0xCB, 0x59, 0xCB, 0x5A, 0xCB, 0x5B, /* 0xA0-0xA3 */
+	0xDE, 0xAF, 0xCB, 0x5C, 0xCB, 0x5D, 0xCB, 0x5E, /* 0xA4-0xA7 */
+	0xDE, 0xB0, 0xCB, 0x5F, 0xD0, 0xBD, 0xCB, 0x60, /* 0xA8-0xAB */
+	0xCB, 0x61, 0xCB, 0x62, 0xDE, 0xB4, 0xCA, 0xED, /* 0xAC-0xAF */
+	0xDE, 0xB9, 0xCB, 0x63, 0xCB, 0x64, 0xCB, 0x65, /* 0xB0-0xB3 */
+	0xCB, 0x66, 0xCB, 0x67, 0xCB, 0x68, 0xDE, 0xB8, /* 0xB4-0xB7 */
+	0xCB, 0x69, 0xDE, 0xB7, 0xCB, 0x6A, 0xCB, 0x6B, /* 0xB8-0xBB */
+	0xCB, 0x6C, 0xCB, 0x6D, 0xCB, 0x6E, 0xCB, 0x6F, /* 0xBC-0xBF */
+	0xCB, 0x70, 0xDE, 0xBB, 0xCB, 0x71, 0xCB, 0x72, /* 0xC0-0xC3 */
+	0xCB, 0x73, 0xCB, 0x74, 0xCB, 0x75, 0xCB, 0x76, /* 0xC4-0xC7 */
+	0xCB, 0x77, 0xBD, 0xE5, 0xCB, 0x78, 0xCB, 0x79, /* 0xC8-0xCB */
+	0xCB, 0x7A, 0xCB, 0x7B, 0xCB, 0x7C, 0xB2, 0xD8, /* 0xCC-0xCF */
+	0xC3, 0xEA, 0xCB, 0x7D, 0xCB, 0x7E, 0xDE, 0xBA, /* 0xD0-0xD3 */
+	0xCB, 0x80, 0xC5, 0xBA, 0xCB, 0x81, 0xCB, 0x82, /* 0xD4-0xD7 */
+	0xCB, 0x83, 0xCB, 0x84, 0xCB, 0x85, 0xCB, 0x86, /* 0xD8-0xDB */
+	0xDE, 0xBC, 0xCB, 0x87, 0xCB, 0x88, 0xCB, 0x89, /* 0xDC-0xDF */
+	0xCB, 0x8A, 0xCB, 0x8B, 0xCB, 0x8C, 0xCB, 0x8D, /* 0xE0-0xE3 */
+	0xCC, 0xD9, 0xCB, 0x8E, 0xCB, 0x8F, 0xCB, 0x90, /* 0xE4-0xE7 */
+	0xCB, 0x91, 0xB7, 0xAA, 0xCB, 0x92, 0xCB, 0x93, /* 0xE8-0xEB */
+	0xCB, 0x94, 0xCB, 0x95, 0xCB, 0x96, 0xCB, 0x97, /* 0xEC-0xEF */
+	0xCB, 0x98, 0xCB, 0x99, 0xCB, 0x9A, 0xCB, 0x9B, /* 0xF0-0xF3 */
+	0xCB, 0x9C, 0xCB, 0x9D, 0xCB, 0x9E, 0xCB, 0x9F, /* 0xF4-0xF7 */
+	0xCB, 0xA0, 0xCC, 0x40, 0xCC, 0x41, 0xD4, 0xE5, /* 0xF8-0xFB */
+	0xCC, 0x42, 0xCC, 0x43, 0xCC, 0x44, 0xDE, 0xBD, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_86[512] = {
+	0xCC, 0x45, 0xCC, 0x46, 0xCC, 0x47, 0xCC, 0x48, /* 0x00-0x03 */
+	0xCC, 0x49, 0xDE, 0xBF, 0xCC, 0x4A, 0xCC, 0x4B, /* 0x04-0x07 */
+	0xCC, 0x4C, 0xCC, 0x4D, 0xCC, 0x4E, 0xCC, 0x4F, /* 0x08-0x0B */
+	0xCC, 0x50, 0xCC, 0x51, 0xCC, 0x52, 0xCC, 0x53, /* 0x0C-0x0F */
+	0xCC, 0x54, 0xC4, 0xA2, 0xCC, 0x55, 0xCC, 0x56, /* 0x10-0x13 */
+	0xCC, 0x57, 0xCC, 0x58, 0xDE, 0xC1, 0xCC, 0x59, /* 0x14-0x17 */
+	0xCC, 0x5A, 0xCC, 0x5B, 0xCC, 0x5C, 0xCC, 0x5D, /* 0x18-0x1B */
+	0xCC, 0x5E, 0xCC, 0x5F, 0xCC, 0x60, 0xCC, 0x61, /* 0x1C-0x1F */
+	0xCC, 0x62, 0xCC, 0x63, 0xCC, 0x64, 0xCC, 0x65, /* 0x20-0x23 */
+	0xCC, 0x66, 0xCC, 0x67, 0xCC, 0x68, 0xDE, 0xBE, /* 0x24-0x27 */
+	0xCC, 0x69, 0xDE, 0xC0, 0xCC, 0x6A, 0xCC, 0x6B, /* 0x28-0x2B */
+	0xCC, 0x6C, 0xCC, 0x6D, 0xCC, 0x6E, 0xCC, 0x6F, /* 0x2C-0x2F */
+	0xCC, 0x70, 0xCC, 0x71, 0xCC, 0x72, 0xCC, 0x73, /* 0x30-0x33 */
+	0xCC, 0x74, 0xCC, 0x75, 0xCC, 0x76, 0xCC, 0x77, /* 0x34-0x37 */
+	0xD5, 0xBA, 0xCC, 0x78, 0xCC, 0x79, 0xCC, 0x7A, /* 0x38-0x3B */
+	0xDE, 0xC2, 0xCC, 0x7B, 0xCC, 0x7C, 0xCC, 0x7D, /* 0x3C-0x3F */
+	0xCC, 0x7E, 0xCC, 0x80, 0xCC, 0x81, 0xCC, 0x82, /* 0x40-0x43 */
+	0xCC, 0x83, 0xCC, 0x84, 0xCC, 0x85, 0xCC, 0x86, /* 0x44-0x47 */
+	0xCC, 0x87, 0xCC, 0x88, 0xCC, 0x89, 0xCC, 0x8A, /* 0x48-0x4B */
+	0xCC, 0x8B, 0xF2, 0xAE, 0xBB, 0xA2, 0xC2, 0xB2, /* 0x4C-0x4F */
+	0xC5, 0xB0, 0xC2, 0xC7, 0xCC, 0x8C, 0xCC, 0x8D, /* 0x50-0x53 */
+	0xF2, 0xAF, 0xCC, 0x8E, 0xCC, 0x8F, 0xCC, 0x90, /* 0x54-0x57 */
+	0xCC, 0x91, 0xCC, 0x92, 0xD0, 0xE9, 0xCC, 0x93, /* 0x58-0x5B */
+	0xCC, 0x94, 0xCC, 0x95, 0xD3, 0xDD, 0xCC, 0x96, /* 0x5C-0x5F */
+	0xCC, 0x97, 0xCC, 0x98, 0xEB, 0xBD, 0xCC, 0x99, /* 0x60-0x63 */
+	0xCC, 0x9A, 0xCC, 0x9B, 0xCC, 0x9C, 0xCC, 0x9D, /* 0x64-0x67 */
+	0xCC, 0x9E, 0xCC, 0x9F, 0xCC, 0xA0, 0xB3, 0xE6, /* 0x68-0x6B */
+	0xF2, 0xB0, 0xCD, 0x40, 0xF2, 0xB1, 0xCD, 0x41, /* 0x6C-0x6F */
+	0xCD, 0x42, 0xCA, 0xAD, 0xCD, 0x43, 0xCD, 0x44, /* 0x70-0x73 */
+	0xCD, 0x45, 0xCD, 0x46, 0xCD, 0x47, 0xCD, 0x48, /* 0x74-0x77 */
+	0xCD, 0x49, 0xBA, 0xE7, 0xF2, 0xB3, 0xF2, 0xB5, /* 0x78-0x7B */
+	0xF2, 0xB4, 0xCB, 0xE4, 0xCF, 0xBA, 0xF2, 0xB2, /* 0x7C-0x7F */
+	
+	0xCA, 0xB4, 0xD2, 0xCF, 0xC2, 0xEC, 0xCD, 0x4A, /* 0x80-0x83 */
+	0xCD, 0x4B, 0xCD, 0x4C, 0xCD, 0x4D, 0xCD, 0x4E, /* 0x84-0x87 */
+	0xCD, 0x4F, 0xCD, 0x50, 0xCE, 0xC3, 0xF2, 0xB8, /* 0x88-0x8B */
+	0xB0, 0xF6, 0xF2, 0xB7, 0xCD, 0x51, 0xCD, 0x52, /* 0x8C-0x8F */
+	0xCD, 0x53, 0xCD, 0x54, 0xCD, 0x55, 0xF2, 0xBE, /* 0x90-0x93 */
+	0xCD, 0x56, 0xB2, 0xCF, 0xCD, 0x57, 0xCD, 0x58, /* 0x94-0x97 */
+	0xCD, 0x59, 0xCD, 0x5A, 0xCD, 0x5B, 0xCD, 0x5C, /* 0x98-0x9B */
+	0xD1, 0xC1, 0xF2, 0xBA, 0xCD, 0x5D, 0xCD, 0x5E, /* 0x9C-0x9F */
+	0xCD, 0x5F, 0xCD, 0x60, 0xCD, 0x61, 0xF2, 0xBC, /* 0xA0-0xA3 */
+	0xD4, 0xE9, 0xCD, 0x62, 0xCD, 0x63, 0xF2, 0xBB, /* 0xA4-0xA7 */
+	0xF2, 0xB6, 0xF2, 0xBF, 0xF2, 0xBD, 0xCD, 0x64, /* 0xA8-0xAB */
+	0xF2, 0xB9, 0xCD, 0x65, 0xCD, 0x66, 0xF2, 0xC7, /* 0xAC-0xAF */
+	0xF2, 0xC4, 0xF2, 0xC6, 0xCD, 0x67, 0xCD, 0x68, /* 0xB0-0xB3 */
+	0xF2, 0xCA, 0xF2, 0xC2, 0xF2, 0xC0, 0xCD, 0x69, /* 0xB4-0xB7 */
+	0xCD, 0x6A, 0xCD, 0x6B, 0xF2, 0xC5, 0xCD, 0x6C, /* 0xB8-0xBB */
+	0xCD, 0x6D, 0xCD, 0x6E, 0xCD, 0x6F, 0xCD, 0x70, /* 0xBC-0xBF */
+	0xD6, 0xFB, 0xCD, 0x71, 0xCD, 0x72, 0xCD, 0x73, /* 0xC0-0xC3 */
+	0xF2, 0xC1, 0xCD, 0x74, 0xC7, 0xF9, 0xC9, 0xDF, /* 0xC4-0xC7 */
+	0xCD, 0x75, 0xF2, 0xC8, 0xB9, 0xC6, 0xB5, 0xB0, /* 0xC8-0xCB */
+	0xCD, 0x76, 0xCD, 0x77, 0xF2, 0xC3, 0xF2, 0xC9, /* 0xCC-0xCF */
+	0xF2, 0xD0, 0xF2, 0xD6, 0xCD, 0x78, 0xCD, 0x79, /* 0xD0-0xD3 */
+	0xBB, 0xD7, 0xCD, 0x7A, 0xCD, 0x7B, 0xCD, 0x7C, /* 0xD4-0xD7 */
+	0xF2, 0xD5, 0xCD, 0xDC, 0xCD, 0x7D, 0xD6, 0xEB, /* 0xD8-0xDB */
+	0xCD, 0x7E, 0xCD, 0x80, 0xF2, 0xD2, 0xF2, 0xD4, /* 0xDC-0xDF */
+	0xCD, 0x81, 0xCD, 0x82, 0xCD, 0x83, 0xCD, 0x84, /* 0xE0-0xE3 */
+	0xB8, 0xF2, 0xCD, 0x85, 0xCD, 0x86, 0xCD, 0x87, /* 0xE4-0xE7 */
+	0xCD, 0x88, 0xF2, 0xCB, 0xCD, 0x89, 0xCD, 0x8A, /* 0xE8-0xEB */
+	0xCD, 0x8B, 0xF2, 0xCE, 0xC2, 0xF9, 0xCD, 0x8C, /* 0xEC-0xEF */
+	0xD5, 0xDD, 0xF2, 0xCC, 0xF2, 0xCD, 0xF2, 0xCF, /* 0xF0-0xF3 */
+	0xF2, 0xD3, 0xCD, 0x8D, 0xCD, 0x8E, 0xCD, 0x8F, /* 0xF4-0xF7 */
+	0xF2, 0xD9, 0xD3, 0xBC, 0xCD, 0x90, 0xCD, 0x91, /* 0xF8-0xFB */
+	0xCD, 0x92, 0xCD, 0x93, 0xB6, 0xEA, 0xCD, 0x94, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_87[512] = {
+	0xCA, 0xF1, 0xCD, 0x95, 0xB7, 0xE4, 0xF2, 0xD7, /* 0x00-0x03 */
+	0xCD, 0x96, 0xCD, 0x97, 0xCD, 0x98, 0xF2, 0xD8, /* 0x04-0x07 */
+	0xF2, 0xDA, 0xF2, 0xDD, 0xF2, 0xDB, 0xCD, 0x99, /* 0x08-0x0B */
+	0xCD, 0x9A, 0xF2, 0xDC, 0xCD, 0x9B, 0xCD, 0x9C, /* 0x0C-0x0F */
+	0xCD, 0x9D, 0xCD, 0x9E, 0xD1, 0xD1, 0xF2, 0xD1, /* 0x10-0x13 */
+	0xCD, 0x9F, 0xCD, 0xC9, 0xCD, 0xA0, 0xCE, 0xCF, /* 0x14-0x17 */
+	0xD6, 0xA9, 0xCE, 0x40, 0xF2, 0xE3, 0xCE, 0x41, /* 0x18-0x1B */
+	0xC3, 0xDB, 0xCE, 0x42, 0xF2, 0xE0, 0xCE, 0x43, /* 0x1C-0x1F */
+	0xCE, 0x44, 0xC0, 0xAF, 0xF2, 0xEC, 0xF2, 0xDE, /* 0x20-0x23 */
+	0xCE, 0x45, 0xF2, 0xE1, 0xCE, 0x46, 0xCE, 0x47, /* 0x24-0x27 */
+	0xCE, 0x48, 0xF2, 0xE8, 0xCE, 0x49, 0xCE, 0x4A, /* 0x28-0x2B */
+	0xCE, 0x4B, 0xCE, 0x4C, 0xF2, 0xE2, 0xCE, 0x4D, /* 0x2C-0x2F */
+	0xCE, 0x4E, 0xF2, 0xE7, 0xCE, 0x4F, 0xCE, 0x50, /* 0x30-0x33 */
+	0xF2, 0xE6, 0xCE, 0x51, 0xCE, 0x52, 0xF2, 0xE9, /* 0x34-0x37 */
+	0xCE, 0x53, 0xCE, 0x54, 0xCE, 0x55, 0xF2, 0xDF, /* 0x38-0x3B */
+	0xCE, 0x56, 0xCE, 0x57, 0xF2, 0xE4, 0xF2, 0xEA, /* 0x3C-0x3F */
+	0xCE, 0x58, 0xCE, 0x59, 0xCE, 0x5A, 0xCE, 0x5B, /* 0x40-0x43 */
+	0xCE, 0x5C, 0xCE, 0x5D, 0xCE, 0x5E, 0xD3, 0xAC, /* 0x44-0x47 */
+	0xF2, 0xE5, 0xB2, 0xF5, 0xCE, 0x5F, 0xCE, 0x60, /* 0x48-0x4B */
+	0xF2, 0xF2, 0xCE, 0x61, 0xD0, 0xAB, 0xCE, 0x62, /* 0x4C-0x4F */
+	0xCE, 0x63, 0xCE, 0x64, 0xCE, 0x65, 0xF2, 0xF5, /* 0x50-0x53 */
+	0xCE, 0x66, 0xCE, 0x67, 0xCE, 0x68, 0xBB, 0xC8, /* 0x54-0x57 */
+	0xCE, 0x69, 0xF2, 0xF9, 0xCE, 0x6A, 0xCE, 0x6B, /* 0x58-0x5B */
+	0xCE, 0x6C, 0xCE, 0x6D, 0xCE, 0x6E, 0xCE, 0x6F, /* 0x5C-0x5F */
+	0xF2, 0xF0, 0xCE, 0x70, 0xCE, 0x71, 0xF2, 0xF6, /* 0x60-0x63 */
+	0xF2, 0xF8, 0xF2, 0xFA, 0xCE, 0x72, 0xCE, 0x73, /* 0x64-0x67 */
+	0xCE, 0x74, 0xCE, 0x75, 0xCE, 0x76, 0xCE, 0x77, /* 0x68-0x6B */
+	0xCE, 0x78, 0xCE, 0x79, 0xF2, 0xF3, 0xCE, 0x7A, /* 0x6C-0x6F */
+	0xF2, 0xF1, 0xCE, 0x7B, 0xCE, 0x7C, 0xCE, 0x7D, /* 0x70-0x73 */
+	0xBA, 0xFB, 0xCE, 0x7E, 0xB5, 0xFB, 0xCE, 0x80, /* 0x74-0x77 */
+	0xCE, 0x81, 0xCE, 0x82, 0xCE, 0x83, 0xF2, 0xEF, /* 0x78-0x7B */
+	0xF2, 0xF7, 0xF2, 0xED, 0xF2, 0xEE, 0xCE, 0x84, /* 0x7C-0x7F */
+	
+	0xCE, 0x85, 0xCE, 0x86, 0xF2, 0xEB, 0xF3, 0xA6, /* 0x80-0x83 */
+	0xCE, 0x87, 0xF3, 0xA3, 0xCE, 0x88, 0xCE, 0x89, /* 0x84-0x87 */
+	0xF3, 0xA2, 0xCE, 0x8A, 0xCE, 0x8B, 0xF2, 0xF4, /* 0x88-0x8B */
+	0xCE, 0x8C, 0xC8, 0xDA, 0xCE, 0x8D, 0xCE, 0x8E, /* 0x8C-0x8F */
+	0xCE, 0x8F, 0xCE, 0x90, 0xCE, 0x91, 0xF2, 0xFB, /* 0x90-0x93 */
+	0xCE, 0x92, 0xCE, 0x93, 0xCE, 0x94, 0xF3, 0xA5, /* 0x94-0x97 */
+	0xCE, 0x95, 0xCE, 0x96, 0xCE, 0x97, 0xCE, 0x98, /* 0x98-0x9B */
+	0xCE, 0x99, 0xCE, 0x9A, 0xCE, 0x9B, 0xC3, 0xF8, /* 0x9C-0x9F */
+	0xCE, 0x9C, 0xCE, 0x9D, 0xCE, 0x9E, 0xCE, 0x9F, /* 0xA0-0xA3 */
+	0xCE, 0xA0, 0xCF, 0x40, 0xCF, 0x41, 0xCF, 0x42, /* 0xA4-0xA7 */
+	0xF2, 0xFD, 0xCF, 0x43, 0xCF, 0x44, 0xF3, 0xA7, /* 0xA8-0xAB */
+	0xF3, 0xA9, 0xF3, 0xA4, 0xCF, 0x45, 0xF2, 0xFC, /* 0xAC-0xAF */
+	0xCF, 0x46, 0xCF, 0x47, 0xCF, 0x48, 0xF3, 0xAB, /* 0xB0-0xB3 */
+	0xCF, 0x49, 0xF3, 0xAA, 0xCF, 0x4A, 0xCF, 0x4B, /* 0xB4-0xB7 */
+	0xCF, 0x4C, 0xCF, 0x4D, 0xC2, 0xDD, 0xCF, 0x4E, /* 0xB8-0xBB */
+	0xCF, 0x4F, 0xF3, 0xAE, 0xCF, 0x50, 0xCF, 0x51, /* 0xBC-0xBF */
+	0xF3, 0xB0, 0xCF, 0x52, 0xCF, 0x53, 0xCF, 0x54, /* 0xC0-0xC3 */
+	0xCF, 0x55, 0xCF, 0x56, 0xF3, 0xA1, 0xCF, 0x57, /* 0xC4-0xC7 */
+	0xCF, 0x58, 0xCF, 0x59, 0xF3, 0xB1, 0xF3, 0xAC, /* 0xC8-0xCB */
+	0xCF, 0x5A, 0xCF, 0x5B, 0xCF, 0x5C, 0xCF, 0x5D, /* 0xCC-0xCF */
+	0xCF, 0x5E, 0xF3, 0xAF, 0xF2, 0xFE, 0xF3, 0xAD, /* 0xD0-0xD3 */
+	0xCF, 0x5F, 0xCF, 0x60, 0xCF, 0x61, 0xCF, 0x62, /* 0xD4-0xD7 */
+	0xCF, 0x63, 0xCF, 0x64, 0xCF, 0x65, 0xF3, 0xB2, /* 0xD8-0xDB */
+	0xCF, 0x66, 0xCF, 0x67, 0xCF, 0x68, 0xCF, 0x69, /* 0xDC-0xDF */
+	0xF3, 0xB4, 0xCF, 0x6A, 0xCF, 0x6B, 0xCF, 0x6C, /* 0xE0-0xE3 */
+	0xCF, 0x6D, 0xF3, 0xA8, 0xCF, 0x6E, 0xCF, 0x6F, /* 0xE4-0xE7 */
+	0xCF, 0x70, 0xCF, 0x71, 0xF3, 0xB3, 0xCF, 0x72, /* 0xE8-0xEB */
+	0xCF, 0x73, 0xCF, 0x74, 0xF3, 0xB5, 0xCF, 0x75, /* 0xEC-0xEF */
+	0xCF, 0x76, 0xCF, 0x77, 0xCF, 0x78, 0xCF, 0x79, /* 0xF0-0xF3 */
+	0xCF, 0x7A, 0xCF, 0x7B, 0xCF, 0x7C, 0xCF, 0x7D, /* 0xF4-0xF7 */
+	0xCF, 0x7E, 0xD0, 0xB7, 0xCF, 0x80, 0xCF, 0x81, /* 0xF8-0xFB */
+	0xCF, 0x82, 0xCF, 0x83, 0xF3, 0xB8, 0xCF, 0x84, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_88[512] = {
+	0xCF, 0x85, 0xCF, 0x86, 0xCF, 0x87, 0xD9, 0xF9, /* 0x00-0x03 */
+	0xCF, 0x88, 0xCF, 0x89, 0xCF, 0x8A, 0xCF, 0x8B, /* 0x04-0x07 */
+	0xCF, 0x8C, 0xCF, 0x8D, 0xF3, 0xB9, 0xCF, 0x8E, /* 0x08-0x0B */
+	0xCF, 0x8F, 0xCF, 0x90, 0xCF, 0x91, 0xCF, 0x92, /* 0x0C-0x0F */
+	0xCF, 0x93, 0xCF, 0x94, 0xCF, 0x95, 0xF3, 0xB7, /* 0x10-0x13 */
+	0xCF, 0x96, 0xC8, 0xE4, 0xF3, 0xB6, 0xCF, 0x97, /* 0x14-0x17 */
+	0xCF, 0x98, 0xCF, 0x99, 0xCF, 0x9A, 0xF3, 0xBA, /* 0x18-0x1B */
+	0xCF, 0x9B, 0xCF, 0x9C, 0xCF, 0x9D, 0xCF, 0x9E, /* 0x1C-0x1F */
+	0xCF, 0x9F, 0xF3, 0xBB, 0xB4, 0xC0, 0xCF, 0xA0, /* 0x20-0x23 */
+	0xD0, 0x40, 0xD0, 0x41, 0xD0, 0x42, 0xD0, 0x43, /* 0x24-0x27 */
+	0xD0, 0x44, 0xD0, 0x45, 0xD0, 0x46, 0xD0, 0x47, /* 0x28-0x2B */
+	0xD0, 0x48, 0xD0, 0x49, 0xD0, 0x4A, 0xD0, 0x4B, /* 0x2C-0x2F */
+	0xD0, 0x4C, 0xD0, 0x4D, 0xEE, 0xC3, 0xD0, 0x4E, /* 0x30-0x33 */
+	0xD0, 0x4F, 0xD0, 0x50, 0xD0, 0x51, 0xD0, 0x52, /* 0x34-0x37 */
+	0xD0, 0x53, 0xF3, 0xBC, 0xD0, 0x54, 0xD0, 0x55, /* 0x38-0x3B */
+	0xF3, 0xBD, 0xD0, 0x56, 0xD0, 0x57, 0xD0, 0x58, /* 0x3C-0x3F */
+	0xD1, 0xAA, 0xD0, 0x59, 0xD0, 0x5A, 0xD0, 0x5B, /* 0x40-0x43 */
+	0xF4, 0xAC, 0xD0, 0xC6, 0xD0, 0x5C, 0xD0, 0x5D, /* 0x44-0x47 */
+	0xD0, 0x5E, 0xD0, 0x5F, 0xD0, 0x60, 0xD0, 0x61, /* 0x48-0x4B */
+	0xD0, 0xD0, 0xD1, 0xDC, 0xD0, 0x62, 0xD0, 0x63, /* 0x4C-0x4F */
+	0xD0, 0x64, 0xD0, 0x65, 0xD0, 0x66, 0xD0, 0x67, /* 0x50-0x53 */
+	0xCF, 0xCE, 0xD0, 0x68, 0xD0, 0x69, 0xBD, 0xD6, /* 0x54-0x57 */
+	0xD0, 0x6A, 0xD1, 0xC3, 0xD0, 0x6B, 0xD0, 0x6C, /* 0x58-0x5B */
+	0xD0, 0x6D, 0xD0, 0x6E, 0xD0, 0x6F, 0xD0, 0x70, /* 0x5C-0x5F */
+	0xD0, 0x71, 0xBA, 0xE2, 0xE1, 0xE9, 0xD2, 0xC2, /* 0x60-0x63 */
+	0xF1, 0xC2, 0xB2, 0xB9, 0xD0, 0x72, 0xD0, 0x73, /* 0x64-0x67 */
+	0xB1, 0xED, 0xF1, 0xC3, 0xD0, 0x74, 0xC9, 0xC0, /* 0x68-0x6B */
+	0xB3, 0xC4, 0xD0, 0x75, 0xD9, 0xF2, 0xD0, 0x76, /* 0x6C-0x6F */
+	0xCB, 0xA5, 0xD0, 0x77, 0xF1, 0xC4, 0xD0, 0x78, /* 0x70-0x73 */
+	0xD0, 0x79, 0xD0, 0x7A, 0xD0, 0x7B, 0xD6, 0xD4, /* 0x74-0x77 */
+	0xD0, 0x7C, 0xD0, 0x7D, 0xD0, 0x7E, 0xD0, 0x80, /* 0x78-0x7B */
+	0xD0, 0x81, 0xF1, 0xC5, 0xF4, 0xC0, 0xF1, 0xC6, /* 0x7C-0x7F */
+	
+	0xD0, 0x82, 0xD4, 0xAC, 0xF1, 0xC7, 0xD0, 0x83, /* 0x80-0x83 */
+	0xB0, 0xC0, 0xF4, 0xC1, 0xD0, 0x84, 0xD0, 0x85, /* 0x84-0x87 */
+	0xF4, 0xC2, 0xD0, 0x86, 0xD0, 0x87, 0xB4, 0xFC, /* 0x88-0x8B */
+	0xD0, 0x88, 0xC5, 0xDB, 0xD0, 0x89, 0xD0, 0x8A, /* 0x8C-0x8F */
+	0xD0, 0x8B, 0xD0, 0x8C, 0xCC, 0xBB, 0xD0, 0x8D, /* 0x90-0x93 */
+	0xD0, 0x8E, 0xD0, 0x8F, 0xD0, 0xE4, 0xD0, 0x90, /* 0x94-0x97 */
+	0xD0, 0x91, 0xD0, 0x92, 0xD0, 0x93, 0xD0, 0x94, /* 0x98-0x9B */
+	0xCD, 0xE0, 0xD0, 0x95, 0xD0, 0x96, 0xD0, 0x97, /* 0x9C-0x9F */
+	0xD0, 0x98, 0xD0, 0x99, 0xF1, 0xC8, 0xD0, 0x9A, /* 0xA0-0xA3 */
+	0xD9, 0xF3, 0xD0, 0x9B, 0xD0, 0x9C, 0xD0, 0x9D, /* 0xA4-0xA7 */
+	0xD0, 0x9E, 0xD0, 0x9F, 0xD0, 0xA0, 0xB1, 0xBB, /* 0xA8-0xAB */
+	0xD1, 0x40, 0xCF, 0xAE, 0xD1, 0x41, 0xD1, 0x42, /* 0xAC-0xAF */
+	0xD1, 0x43, 0xB8, 0xA4, 0xD1, 0x44, 0xD1, 0x45, /* 0xB0-0xB3 */
+	0xD1, 0x46, 0xD1, 0x47, 0xD1, 0x48, 0xF1, 0xCA, /* 0xB4-0xB7 */
+	0xD1, 0x49, 0xD1, 0x4A, 0xD1, 0x4B, 0xD1, 0x4C, /* 0xB8-0xBB */
+	0xF1, 0xCB, 0xD1, 0x4D, 0xD1, 0x4E, 0xD1, 0x4F, /* 0xBC-0xBF */
+	0xD1, 0x50, 0xB2, 0xC3, 0xC1, 0xD1, 0xD1, 0x51, /* 0xC0-0xC3 */
+	0xD1, 0x52, 0xD7, 0xB0, 0xF1, 0xC9, 0xD1, 0x53, /* 0xC4-0xC7 */
+	0xD1, 0x54, 0xF1, 0xCC, 0xD1, 0x55, 0xD1, 0x56, /* 0xC8-0xCB */
+	0xD1, 0x57, 0xD1, 0x58, 0xF1, 0xCE, 0xD1, 0x59, /* 0xCC-0xCF */
+	0xD1, 0x5A, 0xD1, 0x5B, 0xD9, 0xF6, 0xD1, 0x5C, /* 0xD0-0xD3 */
+	0xD2, 0xE1, 0xD4, 0xA3, 0xD1, 0x5D, 0xD1, 0x5E, /* 0xD4-0xD7 */
+	0xF4, 0xC3, 0xC8, 0xB9, 0xD1, 0x5F, 0xD1, 0x60, /* 0xD8-0xDB */
+	0xD1, 0x61, 0xD1, 0x62, 0xD1, 0x63, 0xF4, 0xC4, /* 0xDC-0xDF */
+	0xD1, 0x64, 0xD1, 0x65, 0xF1, 0xCD, 0xF1, 0xCF, /* 0xE0-0xE3 */
+	0xBF, 0xE3, 0xF1, 0xD0, 0xD1, 0x66, 0xD1, 0x67, /* 0xE4-0xE7 */
+	0xF1, 0xD4, 0xD1, 0x68, 0xD1, 0x69, 0xD1, 0x6A, /* 0xE8-0xEB */
+	0xD1, 0x6B, 0xD1, 0x6C, 0xD1, 0x6D, 0xD1, 0x6E, /* 0xEC-0xEF */
+	0xF1, 0xD6, 0xF1, 0xD1, 0xD1, 0x6F, 0xC9, 0xD1, /* 0xF0-0xF3 */
+	0xC5, 0xE1, 0xD1, 0x70, 0xD1, 0x71, 0xD1, 0x72, /* 0xF4-0xF7 */
+	0xC2, 0xE3, 0xB9, 0xFC, 0xD1, 0x73, 0xD1, 0x74, /* 0xF8-0xFB */
+	0xF1, 0xD3, 0xD1, 0x75, 0xF1, 0xD5, 0xD1, 0x76, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_89[512] = {
+	0xD1, 0x77, 0xD1, 0x78, 0xB9, 0xD3, 0xD1, 0x79, /* 0x00-0x03 */
+	0xD1, 0x7A, 0xD1, 0x7B, 0xD1, 0x7C, 0xD1, 0x7D, /* 0x04-0x07 */
+	0xD1, 0x7E, 0xD1, 0x80, 0xF1, 0xDB, 0xD1, 0x81, /* 0x08-0x0B */
+	0xD1, 0x82, 0xD1, 0x83, 0xD1, 0x84, 0xD1, 0x85, /* 0x0C-0x0F */
+	0xBA, 0xD6, 0xD1, 0x86, 0xB0, 0xFD, 0xF1, 0xD9, /* 0x10-0x13 */
+	0xD1, 0x87, 0xD1, 0x88, 0xD1, 0x89, 0xD1, 0x8A, /* 0x14-0x17 */
+	0xD1, 0x8B, 0xF1, 0xD8, 0xF1, 0xD2, 0xF1, 0xDA, /* 0x18-0x1B */
+	0xD1, 0x8C, 0xD1, 0x8D, 0xD1, 0x8E, 0xD1, 0x8F, /* 0x1C-0x1F */
+	0xD1, 0x90, 0xF1, 0xD7, 0xD1, 0x91, 0xD1, 0x92, /* 0x20-0x23 */
+	0xD1, 0x93, 0xC8, 0xEC, 0xD1, 0x94, 0xD1, 0x95, /* 0x24-0x27 */
+	0xD1, 0x96, 0xD1, 0x97, 0xCD, 0xCA, 0xF1, 0xDD, /* 0x28-0x2B */
+	0xD1, 0x98, 0xD1, 0x99, 0xD1, 0x9A, 0xD1, 0x9B, /* 0x2C-0x2F */
+	0xE5, 0xBD, 0xD1, 0x9C, 0xD1, 0x9D, 0xD1, 0x9E, /* 0x30-0x33 */
+	0xF1, 0xDC, 0xD1, 0x9F, 0xF1, 0xDE, 0xD1, 0xA0, /* 0x34-0x37 */
+	0xD2, 0x40, 0xD2, 0x41, 0xD2, 0x42, 0xD2, 0x43, /* 0x38-0x3B */
+	0xD2, 0x44, 0xD2, 0x45, 0xD2, 0x46, 0xD2, 0x47, /* 0x3C-0x3F */
+	0xD2, 0x48, 0xF1, 0xDF, 0xD2, 0x49, 0xD2, 0x4A, /* 0x40-0x43 */
+	0xCF, 0xE5, 0xD2, 0x4B, 0xD2, 0x4C, 0xD2, 0x4D, /* 0x44-0x47 */
+	0xD2, 0x4E, 0xD2, 0x4F, 0xD2, 0x50, 0xD2, 0x51, /* 0x48-0x4B */
+	0xD2, 0x52, 0xD2, 0x53, 0xD2, 0x54, 0xD2, 0x55, /* 0x4C-0x4F */
+	0xD2, 0x56, 0xD2, 0x57, 0xD2, 0x58, 0xD2, 0x59, /* 0x50-0x53 */
+	0xD2, 0x5A, 0xD2, 0x5B, 0xD2, 0x5C, 0xD2, 0x5D, /* 0x54-0x57 */
+	0xD2, 0x5E, 0xD2, 0x5F, 0xD2, 0x60, 0xD2, 0x61, /* 0x58-0x5B */
+	0xD2, 0x62, 0xD2, 0x63, 0xF4, 0xC5, 0xBD, 0xF3, /* 0x5C-0x5F */
+	0xD2, 0x64, 0xD2, 0x65, 0xD2, 0x66, 0xD2, 0x67, /* 0x60-0x63 */
+	0xD2, 0x68, 0xD2, 0x69, 0xF1, 0xE0, 0xD2, 0x6A, /* 0x64-0x67 */
+	0xD2, 0x6B, 0xD2, 0x6C, 0xD2, 0x6D, 0xD2, 0x6E, /* 0x68-0x6B */
+	0xD2, 0x6F, 0xD2, 0x70, 0xD2, 0x71, 0xD2, 0x72, /* 0x6C-0x6F */
+	0xD2, 0x73, 0xD2, 0x74, 0xD2, 0x75, 0xD2, 0x76, /* 0x70-0x73 */
+	0xD2, 0x77, 0xD2, 0x78, 0xD2, 0x79, 0xD2, 0x7A, /* 0x74-0x77 */
+	0xD2, 0x7B, 0xD2, 0x7C, 0xD2, 0x7D, 0xF1, 0xE1, /* 0x78-0x7B */
+	0xD2, 0x7E, 0xD2, 0x80, 0xD2, 0x81, 0xCE, 0xF7, /* 0x7C-0x7F */
+	
+	0xD2, 0x82, 0xD2, 0xAA, 0xD2, 0x83, 0xF1, 0xFB, /* 0x80-0x83 */
+	0xD2, 0x84, 0xD2, 0x85, 0xB8, 0xB2, 0xD2, 0x86, /* 0x84-0x87 */
+	0xD2, 0x87, 0xD2, 0x88, 0xD2, 0x89, 0xD2, 0x8A, /* 0x88-0x8B */
+	0xD2, 0x8B, 0xD2, 0x8C, 0xD2, 0x8D, 0xD2, 0x8E, /* 0x8C-0x8F */
+	0xD2, 0x8F, 0xD2, 0x90, 0xD2, 0x91, 0xD2, 0x92, /* 0x90-0x93 */
+	0xD2, 0x93, 0xD2, 0x94, 0xD2, 0x95, 0xD2, 0x96, /* 0x94-0x97 */
+	0xD2, 0x97, 0xD2, 0x98, 0xD2, 0x99, 0xD2, 0x9A, /* 0x98-0x9B */
+	0xD2, 0x9B, 0xD2, 0x9C, 0xD2, 0x9D, 0xD2, 0x9E, /* 0x9C-0x9F */
+	0xD2, 0x9F, 0xD2, 0xA0, 0xD3, 0x40, 0xD3, 0x41, /* 0xA0-0xA3 */
+	0xD3, 0x42, 0xD3, 0x43, 0xD3, 0x44, 0xD3, 0x45, /* 0xA4-0xA7 */
+	0xD3, 0x46, 0xD3, 0x47, 0xD3, 0x48, 0xD3, 0x49, /* 0xA8-0xAB */
+	0xD3, 0x4A, 0xD3, 0x4B, 0xD3, 0x4C, 0xD3, 0x4D, /* 0xAC-0xAF */
+	0xD3, 0x4E, 0xD3, 0x4F, 0xD3, 0x50, 0xD3, 0x51, /* 0xB0-0xB3 */
+	0xD3, 0x52, 0xD3, 0x53, 0xD3, 0x54, 0xD3, 0x55, /* 0xB4-0xB7 */
+	0xD3, 0x56, 0xD3, 0x57, 0xD3, 0x58, 0xD3, 0x59, /* 0xB8-0xBB */
+	0xD3, 0x5A, 0xD3, 0x5B, 0xD3, 0x5C, 0xD3, 0x5D, /* 0xBC-0xBF */
+	0xD3, 0x5E, 0xBC, 0xFB, 0xB9, 0xDB, 0xD3, 0x5F, /* 0xC0-0xC3 */
+	0xB9, 0xE6, 0xC3, 0xD9, 0xCA, 0xD3, 0xEA, 0xE8, /* 0xC4-0xC7 */
+	0xC0, 0xC0, 0xBE, 0xF5, 0xEA, 0xE9, 0xEA, 0xEA, /* 0xC8-0xCB */
+	0xEA, 0xEB, 0xD3, 0x60, 0xEA, 0xEC, 0xEA, 0xED, /* 0xCC-0xCF */
+	0xEA, 0xEE, 0xEA, 0xEF, 0xBD, 0xC7, 0xD3, 0x61, /* 0xD0-0xD3 */
+	0xD3, 0x62, 0xD3, 0x63, 0xF5, 0xFB, 0xD3, 0x64, /* 0xD4-0xD7 */
+	0xD3, 0x65, 0xD3, 0x66, 0xF5, 0xFD, 0xD3, 0x67, /* 0xD8-0xDB */
+	0xF5, 0xFE, 0xD3, 0x68, 0xF5, 0xFC, 0xD3, 0x69, /* 0xDC-0xDF */
+	0xD3, 0x6A, 0xD3, 0x6B, 0xD3, 0x6C, 0xBD, 0xE2, /* 0xE0-0xE3 */
+	0xD3, 0x6D, 0xF6, 0xA1, 0xB4, 0xA5, 0xD3, 0x6E, /* 0xE4-0xE7 */
+	0xD3, 0x6F, 0xD3, 0x70, 0xD3, 0x71, 0xF6, 0xA2, /* 0xE8-0xEB */
+	0xD3, 0x72, 0xD3, 0x73, 0xD3, 0x74, 0xF6, 0xA3, /* 0xEC-0xEF */
+	0xD3, 0x75, 0xD3, 0x76, 0xD3, 0x77, 0xEC, 0xB2, /* 0xF0-0xF3 */
+	0xD3, 0x78, 0xD3, 0x79, 0xD3, 0x7A, 0xD3, 0x7B, /* 0xF4-0xF7 */
+	0xD3, 0x7C, 0xD3, 0x7D, 0xD3, 0x7E, 0xD3, 0x80, /* 0xF8-0xFB */
+	0xD3, 0x81, 0xD3, 0x82, 0xD3, 0x83, 0xD3, 0x84, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_8A[512] = {
+	0xD1, 0xD4, 0xD3, 0x85, 0xD3, 0x86, 0xD3, 0x87, /* 0x00-0x03 */
+	0xD3, 0x88, 0xD3, 0x89, 0xD3, 0x8A, 0xD9, 0xEA, /* 0x04-0x07 */
+	0xD3, 0x8B, 0xD3, 0x8C, 0xD3, 0x8D, 0xD3, 0x8E, /* 0x08-0x0B */
+	0xD3, 0x8F, 0xD3, 0x90, 0xD3, 0x91, 0xD3, 0x92, /* 0x0C-0x0F */
+	0xD3, 0x93, 0xD3, 0x94, 0xD3, 0x95, 0xD3, 0x96, /* 0x10-0x13 */
+	0xD3, 0x97, 0xD3, 0x98, 0xD3, 0x99, 0xD3, 0x9A, /* 0x14-0x17 */
+	0xD3, 0x9B, 0xD3, 0x9C, 0xD3, 0x9D, 0xD3, 0x9E, /* 0x18-0x1B */
+	0xD3, 0x9F, 0xD3, 0xA0, 0xD4, 0x40, 0xD4, 0x41, /* 0x1C-0x1F */
+	0xD4, 0x42, 0xD4, 0x43, 0xD4, 0x44, 0xD4, 0x45, /* 0x20-0x23 */
+	0xD4, 0x46, 0xD4, 0x47, 0xD4, 0x48, 0xD4, 0x49, /* 0x24-0x27 */
+	0xD4, 0x4A, 0xD4, 0x4B, 0xD4, 0x4C, 0xD4, 0x4D, /* 0x28-0x2B */
+	0xD4, 0x4E, 0xD4, 0x4F, 0xD4, 0x50, 0xD4, 0x51, /* 0x2C-0x2F */
+	0xD4, 0x52, 0xD4, 0x53, 0xD4, 0x54, 0xD4, 0x55, /* 0x30-0x33 */
+	0xD4, 0x56, 0xD4, 0x57, 0xD4, 0x58, 0xD4, 0x59, /* 0x34-0x37 */
+	0xD4, 0x5A, 0xD4, 0x5B, 0xD4, 0x5C, 0xD4, 0x5D, /* 0x38-0x3B */
+	0xD4, 0x5E, 0xD4, 0x5F, 0xF6, 0xA4, 0xD4, 0x60, /* 0x3C-0x3F */
+	0xD4, 0x61, 0xD4, 0x62, 0xD4, 0x63, 0xD4, 0x64, /* 0x40-0x43 */
+	0xD4, 0x65, 0xD4, 0x66, 0xD4, 0x67, 0xD4, 0x68, /* 0x44-0x47 */
+	0xEE, 0xBA, 0xD4, 0x69, 0xD4, 0x6A, 0xD4, 0x6B, /* 0x48-0x4B */
+	0xD4, 0x6C, 0xD4, 0x6D, 0xD4, 0x6E, 0xD4, 0x6F, /* 0x4C-0x4F */
+	0xD4, 0x70, 0xD4, 0x71, 0xD4, 0x72, 0xD4, 0x73, /* 0x50-0x53 */
+	0xD4, 0x74, 0xD4, 0x75, 0xD4, 0x76, 0xD4, 0x77, /* 0x54-0x57 */
+	0xD4, 0x78, 0xD4, 0x79, 0xD4, 0x7A, 0xD4, 0x7B, /* 0x58-0x5B */
+	0xD4, 0x7C, 0xD4, 0x7D, 0xD4, 0x7E, 0xD4, 0x80, /* 0x5C-0x5F */
+	0xD4, 0x81, 0xD4, 0x82, 0xD4, 0x83, 0xD4, 0x84, /* 0x60-0x63 */
+	0xD4, 0x85, 0xD4, 0x86, 0xD4, 0x87, 0xD4, 0x88, /* 0x64-0x67 */
+	0xD4, 0x89, 0xD4, 0x8A, 0xD4, 0x8B, 0xD4, 0x8C, /* 0x68-0x6B */
+	0xD4, 0x8D, 0xD4, 0x8E, 0xD4, 0x8F, 0xD4, 0x90, /* 0x6C-0x6F */
+	0xD4, 0x91, 0xD4, 0x92, 0xD4, 0x93, 0xD4, 0x94, /* 0x70-0x73 */
+	0xD4, 0x95, 0xD4, 0x96, 0xD4, 0x97, 0xD4, 0x98, /* 0x74-0x77 */
+	0xD4, 0x99, 0xD5, 0xB2, 0xD4, 0x9A, 0xD4, 0x9B, /* 0x78-0x7B */
+	0xD4, 0x9C, 0xD4, 0x9D, 0xD4, 0x9E, 0xD4, 0x9F, /* 0x7C-0x7F */
+	
+	0xD4, 0xA0, 0xD5, 0x40, 0xD5, 0x41, 0xD5, 0x42, /* 0x80-0x83 */
+	0xD5, 0x43, 0xD5, 0x44, 0xD5, 0x45, 0xD5, 0x46, /* 0x84-0x87 */
+	0xD5, 0x47, 0xD3, 0xFE, 0xCC, 0xDC, 0xD5, 0x48, /* 0x88-0x8B */
+	0xD5, 0x49, 0xD5, 0x4A, 0xD5, 0x4B, 0xD5, 0x4C, /* 0x8C-0x8F */
+	0xD5, 0x4D, 0xD5, 0x4E, 0xD5, 0x4F, 0xCA, 0xC4, /* 0x90-0x93 */
+	0xD5, 0x50, 0xD5, 0x51, 0xD5, 0x52, 0xD5, 0x53, /* 0x94-0x97 */
+	0xD5, 0x54, 0xD5, 0x55, 0xD5, 0x56, 0xD5, 0x57, /* 0x98-0x9B */
+	0xD5, 0x58, 0xD5, 0x59, 0xD5, 0x5A, 0xD5, 0x5B, /* 0x9C-0x9F */
+	0xD5, 0x5C, 0xD5, 0x5D, 0xD5, 0x5E, 0xD5, 0x5F, /* 0xA0-0xA3 */
+	0xD5, 0x60, 0xD5, 0x61, 0xD5, 0x62, 0xD5, 0x63, /* 0xA4-0xA7 */
+	0xD5, 0x64, 0xD5, 0x65, 0xD5, 0x66, 0xD5, 0x67, /* 0xA8-0xAB */
+	0xD5, 0x68, 0xD5, 0x69, 0xD5, 0x6A, 0xD5, 0x6B, /* 0xAC-0xAF */
+	0xD5, 0x6C, 0xD5, 0x6D, 0xD5, 0x6E, 0xD5, 0x6F, /* 0xB0-0xB3 */
+	0xD5, 0x70, 0xD5, 0x71, 0xD5, 0x72, 0xD5, 0x73, /* 0xB4-0xB7 */
+	0xD5, 0x74, 0xD5, 0x75, 0xD5, 0x76, 0xD5, 0x77, /* 0xB8-0xBB */
+	0xD5, 0x78, 0xD5, 0x79, 0xD5, 0x7A, 0xD5, 0x7B, /* 0xBC-0xBF */
+	0xD5, 0x7C, 0xD5, 0x7D, 0xD5, 0x7E, 0xD5, 0x80, /* 0xC0-0xC3 */
+	0xD5, 0x81, 0xD5, 0x82, 0xD5, 0x83, 0xD5, 0x84, /* 0xC4-0xC7 */
+	0xD5, 0x85, 0xD5, 0x86, 0xD5, 0x87, 0xD5, 0x88, /* 0xC8-0xCB */
+	0xD5, 0x89, 0xD5, 0x8A, 0xD5, 0x8B, 0xD5, 0x8C, /* 0xCC-0xCF */
+	0xD5, 0x8D, 0xD5, 0x8E, 0xD5, 0x8F, 0xD5, 0x90, /* 0xD0-0xD3 */
+	0xD5, 0x91, 0xD5, 0x92, 0xD5, 0x93, 0xD5, 0x94, /* 0xD4-0xD7 */
+	0xD5, 0x95, 0xD5, 0x96, 0xD5, 0x97, 0xD5, 0x98, /* 0xD8-0xDB */
+	0xD5, 0x99, 0xD5, 0x9A, 0xD5, 0x9B, 0xD5, 0x9C, /* 0xDC-0xDF */
+	0xD5, 0x9D, 0xD5, 0x9E, 0xD5, 0x9F, 0xD5, 0xA0, /* 0xE0-0xE3 */
+	0xD6, 0x40, 0xD6, 0x41, 0xD6, 0x42, 0xD6, 0x43, /* 0xE4-0xE7 */
+	0xD6, 0x44, 0xD6, 0x45, 0xD6, 0x46, 0xD6, 0x47, /* 0xE8-0xEB */
+	0xD6, 0x48, 0xD6, 0x49, 0xD6, 0x4A, 0xD6, 0x4B, /* 0xEC-0xEF */
+	0xD6, 0x4C, 0xD6, 0x4D, 0xD6, 0x4E, 0xD6, 0x4F, /* 0xF0-0xF3 */
+	0xD6, 0x50, 0xD6, 0x51, 0xD6, 0x52, 0xD6, 0x53, /* 0xF4-0xF7 */
+	0xD6, 0x54, 0xD6, 0x55, 0xD6, 0x56, 0xD6, 0x57, /* 0xF8-0xFB */
+	0xD6, 0x58, 0xD6, 0x59, 0xD6, 0x5A, 0xD6, 0x5B, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_8B[512] = {
+	0xD6, 0x5C, 0xD6, 0x5D, 0xD6, 0x5E, 0xD6, 0x5F, /* 0x00-0x03 */
+	0xD6, 0x60, 0xD6, 0x61, 0xD6, 0x62, 0xE5, 0xC0, /* 0x04-0x07 */
+	0xD6, 0x63, 0xD6, 0x64, 0xD6, 0x65, 0xD6, 0x66, /* 0x08-0x0B */
+	0xD6, 0x67, 0xD6, 0x68, 0xD6, 0x69, 0xD6, 0x6A, /* 0x0C-0x0F */
+	0xD6, 0x6B, 0xD6, 0x6C, 0xD6, 0x6D, 0xD6, 0x6E, /* 0x10-0x13 */
+	0xD6, 0x6F, 0xD6, 0x70, 0xD6, 0x71, 0xD6, 0x72, /* 0x14-0x17 */
+	0xD6, 0x73, 0xD6, 0x74, 0xD6, 0x75, 0xD6, 0x76, /* 0x18-0x1B */
+	0xD6, 0x77, 0xD6, 0x78, 0xD6, 0x79, 0xD6, 0x7A, /* 0x1C-0x1F */
+	0xD6, 0x7B, 0xD6, 0x7C, 0xD6, 0x7D, 0xD6, 0x7E, /* 0x20-0x23 */
+	0xD6, 0x80, 0xD6, 0x81, 0xF6, 0xA5, 0xD6, 0x82, /* 0x24-0x27 */
+	0xD6, 0x83, 0xD6, 0x84, 0xD6, 0x85, 0xD6, 0x86, /* 0x28-0x2B */
+	0xD6, 0x87, 0xD6, 0x88, 0xD6, 0x89, 0xD6, 0x8A, /* 0x2C-0x2F */
+	0xD6, 0x8B, 0xD6, 0x8C, 0xD6, 0x8D, 0xD6, 0x8E, /* 0x30-0x33 */
+	0xD6, 0x8F, 0xD6, 0x90, 0xD6, 0x91, 0xD6, 0x92, /* 0x34-0x37 */
+	0xD6, 0x93, 0xD6, 0x94, 0xD6, 0x95, 0xD6, 0x96, /* 0x38-0x3B */
+	0xD6, 0x97, 0xD6, 0x98, 0xD6, 0x99, 0xD6, 0x9A, /* 0x3C-0x3F */
+	0xD6, 0x9B, 0xD6, 0x9C, 0xD6, 0x9D, 0xD6, 0x9E, /* 0x40-0x43 */
+	0xD6, 0x9F, 0xD6, 0xA0, 0xD7, 0x40, 0xD7, 0x41, /* 0x44-0x47 */
+	0xD7, 0x42, 0xD7, 0x43, 0xD7, 0x44, 0xD7, 0x45, /* 0x48-0x4B */
+	0xD7, 0x46, 0xD7, 0x47, 0xD7, 0x48, 0xD7, 0x49, /* 0x4C-0x4F */
+	0xD7, 0x4A, 0xD7, 0x4B, 0xD7, 0x4C, 0xD7, 0x4D, /* 0x50-0x53 */
+	0xD7, 0x4E, 0xD7, 0x4F, 0xD7, 0x50, 0xD7, 0x51, /* 0x54-0x57 */
+	0xD7, 0x52, 0xD7, 0x53, 0xD7, 0x54, 0xD7, 0x55, /* 0x58-0x5B */
+	0xD7, 0x56, 0xD7, 0x57, 0xD7, 0x58, 0xD7, 0x59, /* 0x5C-0x5F */
+	0xD7, 0x5A, 0xD7, 0x5B, 0xD7, 0x5C, 0xD7, 0x5D, /* 0x60-0x63 */
+	0xD7, 0x5E, 0xD7, 0x5F, 0xBE, 0xAF, 0xD7, 0x60, /* 0x64-0x67 */
+	0xD7, 0x61, 0xD7, 0x62, 0xD7, 0x63, 0xD7, 0x64, /* 0x68-0x6B */
+	0xC6, 0xA9, 0xD7, 0x65, 0xD7, 0x66, 0xD7, 0x67, /* 0x6C-0x6F */
+	0xD7, 0x68, 0xD7, 0x69, 0xD7, 0x6A, 0xD7, 0x6B, /* 0x70-0x73 */
+	0xD7, 0x6C, 0xD7, 0x6D, 0xD7, 0x6E, 0xD7, 0x6F, /* 0x74-0x77 */
+	0xD7, 0x70, 0xD7, 0x71, 0xD7, 0x72, 0xD7, 0x73, /* 0x78-0x7B */
+	0xD7, 0x74, 0xD7, 0x75, 0xD7, 0x76, 0xD7, 0x77, /* 0x7C-0x7F */
+	
+	0xD7, 0x78, 0xD7, 0x79, 0xD7, 0x7A, 0xD7, 0x7B, /* 0x80-0x83 */
+	0xD7, 0x7C, 0xD7, 0x7D, 0xD7, 0x7E, 0xD7, 0x80, /* 0x84-0x87 */
+	0xD7, 0x81, 0xD7, 0x82, 0xD7, 0x83, 0xD7, 0x84, /* 0x88-0x8B */
+	0xD7, 0x85, 0xD7, 0x86, 0xD7, 0x87, 0xD7, 0x88, /* 0x8C-0x8F */
+	0xD7, 0x89, 0xD7, 0x8A, 0xD7, 0x8B, 0xD7, 0x8C, /* 0x90-0x93 */
+	0xD7, 0x8D, 0xD7, 0x8E, 0xD7, 0x8F, 0xD7, 0x90, /* 0x94-0x97 */
+	0xD7, 0x91, 0xD7, 0x92, 0xD7, 0x93, 0xD7, 0x94, /* 0x98-0x9B */
+	0xD7, 0x95, 0xD7, 0x96, 0xD7, 0x97, 0xD7, 0x98, /* 0x9C-0x9F */
+	0xDA, 0xA5, 0xBC, 0xC6, 0xB6, 0xA9, 0xB8, 0xBC, /* 0xA0-0xA3 */
+	0xC8, 0xCF, 0xBC, 0xA5, 0xDA, 0xA6, 0xDA, 0xA7, /* 0xA4-0xA7 */
+	0xCC, 0xD6, 0xC8, 0xC3, 0xDA, 0xA8, 0xC6, 0xFD, /* 0xA8-0xAB */
+	0xD7, 0x99, 0xD1, 0xB5, 0xD2, 0xE9, 0xD1, 0xB6, /* 0xAC-0xAF */
+	0xBC, 0xC7, 0xD7, 0x9A, 0xBD, 0xB2, 0xBB, 0xE4, /* 0xB0-0xB3 */
+	0xDA, 0xA9, 0xDA, 0xAA, 0xD1, 0xC8, 0xDA, 0xAB, /* 0xB4-0xB7 */
+	0xD0, 0xED, 0xB6, 0xEF, 0xC2, 0xDB, 0xD7, 0x9B, /* 0xB8-0xBB */
+	0xCB, 0xCF, 0xB7, 0xED, 0xC9, 0xE8, 0xB7, 0xC3, /* 0xBC-0xBF */
+	0xBE, 0xF7, 0xD6, 0xA4, 0xDA, 0xAC, 0xDA, 0xAD, /* 0xC0-0xC3 */
+	0xC6, 0xC0, 0xD7, 0xE7, 0xCA, 0xB6, 0xD7, 0x9C, /* 0xC4-0xC7 */
+	0xD5, 0xA9, 0xCB, 0xDF, 0xD5, 0xEF, 0xDA, 0xAE, /* 0xC8-0xCB */
+	0xD6, 0xDF, 0xB4, 0xCA, 0xDA, 0xB0, 0xDA, 0xAF, /* 0xCC-0xCF */
+	0xD7, 0x9D, 0xD2, 0xEB, 0xDA, 0xB1, 0xDA, 0xB2, /* 0xD0-0xD3 */
+	0xDA, 0xB3, 0xCA, 0xD4, 0xDA, 0xB4, 0xCA, 0xAB, /* 0xD4-0xD7 */
+	0xDA, 0xB5, 0xDA, 0xB6, 0xB3, 0xCF, 0xD6, 0xEF, /* 0xD8-0xDB */
+	0xDA, 0xB7, 0xBB, 0xB0, 0xB5, 0xAE, 0xDA, 0xB8, /* 0xDC-0xDF */
+	0xDA, 0xB9, 0xB9, 0xEE, 0xD1, 0xAF, 0xD2, 0xE8, /* 0xE0-0xE3 */
+	0xDA, 0xBA, 0xB8, 0xC3, 0xCF, 0xEA, 0xB2, 0xEF, /* 0xE4-0xE7 */
+	0xDA, 0xBB, 0xDA, 0xBC, 0xD7, 0x9E, 0xBD, 0xEB, /* 0xE8-0xEB */
+	0xCE, 0xDC, 0xD3, 0xEF, 0xDA, 0xBD, 0xCE, 0xF3, /* 0xEC-0xEF */
+	0xDA, 0xBE, 0xD3, 0xD5, 0xBB, 0xE5, 0xDA, 0xBF, /* 0xF0-0xF3 */
+	0xCB, 0xB5, 0xCB, 0xD0, 0xDA, 0xC0, 0xC7, 0xEB, /* 0xF4-0xF7 */
+	0xD6, 0xEE, 0xDA, 0xC1, 0xC5, 0xB5, 0xB6, 0xC1, /* 0xF8-0xFB */
+	0xDA, 0xC2, 0xB7, 0xCC, 0xBF, 0xCE, 0xDA, 0xC3, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_8C[512] = {
+	0xDA, 0xC4, 0xCB, 0xAD, 0xDA, 0xC5, 0xB5, 0xF7, /* 0x00-0x03 */
+	0xDA, 0xC6, 0xC1, 0xC2, 0xD7, 0xBB, 0xDA, 0xC7, /* 0x04-0x07 */
+	0xCC, 0xB8, 0xD7, 0x9F, 0xD2, 0xEA, 0xC4, 0xB1, /* 0x08-0x0B */
+	0xDA, 0xC8, 0xB5, 0xFD, 0xBB, 0xD1, 0xDA, 0xC9, /* 0x0C-0x0F */
+	0xD0, 0xB3, 0xDA, 0xCA, 0xDA, 0xCB, 0xCE, 0xBD, /* 0x10-0x13 */
+	0xDA, 0xCC, 0xDA, 0xCD, 0xDA, 0xCE, 0xB2, 0xF7, /* 0x14-0x17 */
+	0xDA, 0xD1, 0xDA, 0xCF, 0xD1, 0xE8, 0xDA, 0xD0, /* 0x18-0x1B */
+	0xC3, 0xD5, 0xDA, 0xD2, 0xD7, 0xA0, 0xDA, 0xD3, /* 0x1C-0x1F */
+	0xDA, 0xD4, 0xDA, 0xD5, 0xD0, 0xBB, 0xD2, 0xA5, /* 0x20-0x23 */
+	0xB0, 0xF9, 0xDA, 0xD6, 0xC7, 0xAB, 0xDA, 0xD7, /* 0x24-0x27 */
+	0xBD, 0xF7, 0xC3, 0xA1, 0xDA, 0xD8, 0xDA, 0xD9, /* 0x28-0x2B */
+	0xC3, 0xFD, 0xCC, 0xB7, 0xDA, 0xDA, 0xDA, 0xDB, /* 0x2C-0x2F */
+	0xC0, 0xBE, 0xC6, 0xD7, 0xDA, 0xDC, 0xDA, 0xDD, /* 0x30-0x33 */
+	0xC7, 0xB4, 0xDA, 0xDE, 0xDA, 0xDF, 0xB9, 0xC8, /* 0x34-0x37 */
+	0xD8, 0x40, 0xD8, 0x41, 0xD8, 0x42, 0xD8, 0x43, /* 0x38-0x3B */
+	0xD8, 0x44, 0xD8, 0x45, 0xD8, 0x46, 0xD8, 0x47, /* 0x3C-0x3F */
+	0xD8, 0x48, 0xBB, 0xED, 0xD8, 0x49, 0xD8, 0x4A, /* 0x40-0x43 */
+	0xD8, 0x4B, 0xD8, 0x4C, 0xB6, 0xB9, 0xF4, 0xF8, /* 0x44-0x47 */
+	0xD8, 0x4D, 0xF4, 0xF9, 0xD8, 0x4E, 0xD8, 0x4F, /* 0x48-0x4B */
+	0xCD, 0xE3, 0xD8, 0x50, 0xD8, 0x51, 0xD8, 0x52, /* 0x4C-0x4F */
+	0xD8, 0x53, 0xD8, 0x54, 0xD8, 0x55, 0xD8, 0x56, /* 0x50-0x53 */
+	0xD8, 0x57, 0xF5, 0xB9, 0xD8, 0x58, 0xD8, 0x59, /* 0x54-0x57 */
+	0xD8, 0x5A, 0xD8, 0x5B, 0xEB, 0xE0, 0xD8, 0x5C, /* 0x58-0x5B */
+	0xD8, 0x5D, 0xD8, 0x5E, 0xD8, 0x5F, 0xD8, 0x60, /* 0x5C-0x5F */
+	0xD8, 0x61, 0xCF, 0xF3, 0xBB, 0xBF, 0xD8, 0x62, /* 0x60-0x63 */
+	0xD8, 0x63, 0xD8, 0x64, 0xD8, 0x65, 0xD8, 0x66, /* 0x64-0x67 */
+	0xD8, 0x67, 0xD8, 0x68, 0xBA, 0xC0, 0xD4, 0xA5, /* 0x68-0x6B */
+	0xD8, 0x69, 0xD8, 0x6A, 0xD8, 0x6B, 0xD8, 0x6C, /* 0x6C-0x6F */
+	0xD8, 0x6D, 0xD8, 0x6E, 0xD8, 0x6F, 0xE1, 0xD9, /* 0x70-0x73 */
+	0xD8, 0x70, 0xD8, 0x71, 0xD8, 0x72, 0xD8, 0x73, /* 0x74-0x77 */
+	0xF5, 0xF4, 0xB1, 0xAA, 0xB2, 0xF2, 0xD8, 0x74, /* 0x78-0x7B */
+	0xD8, 0x75, 0xD8, 0x76, 0xD8, 0x77, 0xD8, 0x78, /* 0x7C-0x7F */
+	
+	0xD8, 0x79, 0xD8, 0x7A, 0xF5, 0xF5, 0xD8, 0x7B, /* 0x80-0x83 */
+	0xD8, 0x7C, 0xF5, 0xF7, 0xD8, 0x7D, 0xD8, 0x7E, /* 0x84-0x87 */
+	0xD8, 0x80, 0xBA, 0xD1, 0xF5, 0xF6, 0xD8, 0x81, /* 0x88-0x8B */
+	0xC3, 0xB2, 0xD8, 0x82, 0xD8, 0x83, 0xD8, 0x84, /* 0x8C-0x8F */
+	0xD8, 0x85, 0xD8, 0x86, 0xD8, 0x87, 0xD8, 0x88, /* 0x90-0x93 */
+	0xF5, 0xF9, 0xD8, 0x89, 0xD8, 0x8A, 0xD8, 0x8B, /* 0x94-0x97 */
+	0xF5, 0xF8, 0xD8, 0x8C, 0xD8, 0x8D, 0xD8, 0x8E, /* 0x98-0x9B */
+	0xD8, 0x8F, 0xD8, 0x90, 0xD8, 0x91, 0xD8, 0x92, /* 0x9C-0x9F */
+	0xD8, 0x93, 0xD8, 0x94, 0xD8, 0x95, 0xD8, 0x96, /* 0xA0-0xA3 */
+	0xD8, 0x97, 0xD8, 0x98, 0xD8, 0x99, 0xD8, 0x9A, /* 0xA4-0xA7 */
+	0xD8, 0x9B, 0xD8, 0x9C, 0xD8, 0x9D, 0xD8, 0x9E, /* 0xA8-0xAB */
+	0xD8, 0x9F, 0xD8, 0xA0, 0xD9, 0x40, 0xD9, 0x41, /* 0xAC-0xAF */
+	0xD9, 0x42, 0xD9, 0x43, 0xD9, 0x44, 0xD9, 0x45, /* 0xB0-0xB3 */
+	0xD9, 0x46, 0xD9, 0x47, 0xD9, 0x48, 0xD9, 0x49, /* 0xB4-0xB7 */
+	0xD9, 0x4A, 0xD9, 0x4B, 0xD9, 0x4C, 0xD9, 0x4D, /* 0xB8-0xBB */
+	0xD9, 0x4E, 0xD9, 0x4F, 0xD9, 0x50, 0xD9, 0x51, /* 0xBC-0xBF */
+	0xD9, 0x52, 0xD9, 0x53, 0xD9, 0x54, 0xD9, 0x55, /* 0xC0-0xC3 */
+	0xD9, 0x56, 0xD9, 0x57, 0xD9, 0x58, 0xD9, 0x59, /* 0xC4-0xC7 */
+	0xD9, 0x5A, 0xD9, 0x5B, 0xD9, 0x5C, 0xD9, 0x5D, /* 0xC8-0xCB */
+	0xD9, 0x5E, 0xD9, 0x5F, 0xD9, 0x60, 0xD9, 0x61, /* 0xCC-0xCF */
+	0xD9, 0x62, 0xD9, 0x63, 0xD9, 0x64, 0xD9, 0x65, /* 0xD0-0xD3 */
+	0xD9, 0x66, 0xD9, 0x67, 0xD9, 0x68, 0xD9, 0x69, /* 0xD4-0xD7 */
+	0xD9, 0x6A, 0xD9, 0x6B, 0xD9, 0x6C, 0xD9, 0x6D, /* 0xD8-0xDB */
+	0xD9, 0x6E, 0xD9, 0x6F, 0xD9, 0x70, 0xD9, 0x71, /* 0xDC-0xDF */
+	0xD9, 0x72, 0xD9, 0x73, 0xD9, 0x74, 0xD9, 0x75, /* 0xE0-0xE3 */
+	0xD9, 0x76, 0xD9, 0x77, 0xD9, 0x78, 0xD9, 0x79, /* 0xE4-0xE7 */
+	0xD9, 0x7A, 0xD9, 0x7B, 0xD9, 0x7C, 0xD9, 0x7D, /* 0xE8-0xEB */
+	0xD9, 0x7E, 0xD9, 0x80, 0xD9, 0x81, 0xD9, 0x82, /* 0xEC-0xEF */
+	0xD9, 0x83, 0xD9, 0x84, 0xD9, 0x85, 0xD9, 0x86, /* 0xF0-0xF3 */
+	0xD9, 0x87, 0xD9, 0x88, 0xD9, 0x89, 0xD9, 0x8A, /* 0xF4-0xF7 */
+	0xD9, 0x8B, 0xD9, 0x8C, 0xD9, 0x8D, 0xD9, 0x8E, /* 0xF8-0xFB */
+	0xD9, 0x8F, 0xD9, 0x90, 0xD9, 0x91, 0xD9, 0x92, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_8D[512] = {
+	0xD9, 0x93, 0xD9, 0x94, 0xD9, 0x95, 0xD9, 0x96, /* 0x00-0x03 */
+	0xD9, 0x97, 0xD9, 0x98, 0xD9, 0x99, 0xD9, 0x9A, /* 0x04-0x07 */
+	0xD9, 0x9B, 0xD9, 0x9C, 0xD9, 0x9D, 0xD9, 0x9E, /* 0x08-0x0B */
+	0xD9, 0x9F, 0xD9, 0xA0, 0xDA, 0x40, 0xDA, 0x41, /* 0x0C-0x0F */
+	0xDA, 0x42, 0xDA, 0x43, 0xDA, 0x44, 0xDA, 0x45, /* 0x10-0x13 */
+	0xDA, 0x46, 0xDA, 0x47, 0xDA, 0x48, 0xDA, 0x49, /* 0x14-0x17 */
+	0xDA, 0x4A, 0xDA, 0x4B, 0xDA, 0x4C, 0xDA, 0x4D, /* 0x18-0x1B */
+	0xDA, 0x4E, 0xB1, 0xB4, 0xD5, 0xEA, 0xB8, 0xBA, /* 0x1C-0x1F */
+	0xDA, 0x4F, 0xB9, 0xB1, 0xB2, 0xC6, 0xD4, 0xF0, /* 0x20-0x23 */
+	0xCF, 0xCD, 0xB0, 0xDC, 0xD5, 0xCB, 0xBB, 0xF5, /* 0x24-0x27 */
+	0xD6, 0xCA, 0xB7, 0xB7, 0xCC, 0xB0, 0xC6, 0xB6, /* 0x28-0x2B */
+	0xB1, 0xE1, 0xB9, 0xBA, 0xD6, 0xFC, 0xB9, 0xE1, /* 0x2C-0x2F */
+	0xB7, 0xA1, 0xBC, 0xFA, 0xEA, 0xDA, 0xEA, 0xDB, /* 0x30-0x33 */
+	0xCC, 0xF9, 0xB9, 0xF3, 0xEA, 0xDC, 0xB4, 0xFB, /* 0x34-0x37 */
+	0xC3, 0xB3, 0xB7, 0xD1, 0xBA, 0xD8, 0xEA, 0xDD, /* 0x38-0x3B */
+	0xD4, 0xF4, 0xEA, 0xDE, 0xBC, 0xD6, 0xBB, 0xDF, /* 0x3C-0x3F */
+	0xEA, 0xDF, 0xC1, 0xDE, 0xC2, 0xB8, 0xD4, 0xDF, /* 0x40-0x43 */
+	0xD7, 0xCA, 0xEA, 0xE0, 0xEA, 0xE1, 0xEA, 0xE4, /* 0x44-0x47 */
+	0xEA, 0xE2, 0xEA, 0xE3, 0xC9, 0xDE, 0xB8, 0xB3, /* 0x48-0x4B */
+	0xB6, 0xC4, 0xEA, 0xE5, 0xCA, 0xEA, 0xC9, 0xCD, /* 0x4C-0x4F */
+	0xB4, 0xCD, 0xDA, 0x50, 0xDA, 0x51, 0xE2, 0xD9, /* 0x50-0x53 */
+	0xC5, 0xE2, 0xEA, 0xE6, 0xC0, 0xB5, 0xDA, 0x52, /* 0x54-0x57 */
+	0xD7, 0xB8, 0xEA, 0xE7, 0xD7, 0xAC, 0xC8, 0xFC, /* 0x58-0x5B */
+	0xD8, 0xD3, 0xD8, 0xCD, 0xD4, 0xDE, 0xDA, 0x53, /* 0x5C-0x5F */
+	0xD4, 0xF9, 0xC9, 0xC4, 0xD3, 0xAE, 0xB8, 0xD3, /* 0x60-0x63 */
+	0xB3, 0xE0, 0xDA, 0x54, 0xC9, 0xE2, 0xF4, 0xF6, /* 0x64-0x67 */
+	0xDA, 0x55, 0xDA, 0x56, 0xDA, 0x57, 0xBA, 0xD5, /* 0x68-0x6B */
+	0xDA, 0x58, 0xF4, 0xF7, 0xDA, 0x59, 0xDA, 0x5A, /* 0x6C-0x6F */
+	0xD7, 0xDF, 0xDA, 0x5B, 0xDA, 0x5C, 0xF4, 0xF1, /* 0x70-0x73 */
+	0xB8, 0xB0, 0xD5, 0xD4, 0xB8, 0xCF, 0xC6, 0xF0, /* 0x74-0x77 */
+	0xDA, 0x5D, 0xDA, 0x5E, 0xDA, 0x5F, 0xDA, 0x60, /* 0x78-0x7B */
+	0xDA, 0x61, 0xDA, 0x62, 0xDA, 0x63, 0xDA, 0x64, /* 0x7C-0x7F */
+	
+	0xDA, 0x65, 0xB3, 0xC3, 0xDA, 0x66, 0xDA, 0x67, /* 0x80-0x83 */
+	0xF4, 0xF2, 0xB3, 0xAC, 0xDA, 0x68, 0xDA, 0x69, /* 0x84-0x87 */
+	0xDA, 0x6A, 0xDA, 0x6B, 0xD4, 0xBD, 0xC7, 0xF7, /* 0x88-0x8B */
+	0xDA, 0x6C, 0xDA, 0x6D, 0xDA, 0x6E, 0xDA, 0x6F, /* 0x8C-0x8F */
+	0xDA, 0x70, 0xF4, 0xF4, 0xDA, 0x71, 0xDA, 0x72, /* 0x90-0x93 */
+	0xF4, 0xF3, 0xDA, 0x73, 0xDA, 0x74, 0xDA, 0x75, /* 0x94-0x97 */
+	0xDA, 0x76, 0xDA, 0x77, 0xDA, 0x78, 0xDA, 0x79, /* 0x98-0x9B */
+	0xDA, 0x7A, 0xDA, 0x7B, 0xDA, 0x7C, 0xCC, 0xCB, /* 0x9C-0x9F */
+	0xDA, 0x7D, 0xDA, 0x7E, 0xDA, 0x80, 0xC8, 0xA4, /* 0xA0-0xA3 */
+	0xDA, 0x81, 0xDA, 0x82, 0xDA, 0x83, 0xDA, 0x84, /* 0xA4-0xA7 */
+	0xDA, 0x85, 0xDA, 0x86, 0xDA, 0x87, 0xDA, 0x88, /* 0xA8-0xAB */
+	0xDA, 0x89, 0xDA, 0x8A, 0xDA, 0x8B, 0xDA, 0x8C, /* 0xAC-0xAF */
+	0xDA, 0x8D, 0xF4, 0xF5, 0xDA, 0x8E, 0xD7, 0xE3, /* 0xB0-0xB3 */
+	0xC5, 0xBF, 0xF5, 0xC0, 0xDA, 0x8F, 0xDA, 0x90, /* 0xB4-0xB7 */
+	0xF5, 0xBB, 0xDA, 0x91, 0xF5, 0xC3, 0xDA, 0x92, /* 0xB8-0xBB */
+	0xF5, 0xC2, 0xDA, 0x93, 0xD6, 0xBA, 0xF5, 0xC1, /* 0xBC-0xBF */
+	0xDA, 0x94, 0xDA, 0x95, 0xDA, 0x96, 0xD4, 0xBE, /* 0xC0-0xC3 */
+	0xF5, 0xC4, 0xDA, 0x97, 0xF5, 0xCC, 0xDA, 0x98, /* 0xC4-0xC7 */
+	0xDA, 0x99, 0xDA, 0x9A, 0xDA, 0x9B, 0xB0, 0xCF, /* 0xC8-0xCB */
+	0xB5, 0xF8, 0xDA, 0x9C, 0xF5, 0xC9, 0xF5, 0xCA, /* 0xCC-0xCF */
+	0xDA, 0x9D, 0xC5, 0xDC, 0xDA, 0x9E, 0xDA, 0x9F, /* 0xD0-0xD3 */
+	0xDA, 0xA0, 0xDB, 0x40, 0xF5, 0xC5, 0xF5, 0xC6, /* 0xD4-0xD7 */
+	0xDB, 0x41, 0xDB, 0x42, 0xF5, 0xC7, 0xF5, 0xCB, /* 0xD8-0xDB */
+	0xDB, 0x43, 0xBE, 0xE0, 0xF5, 0xC8, 0xB8, 0xFA, /* 0xDC-0xDF */
+	0xDB, 0x44, 0xDB, 0x45, 0xDB, 0x46, 0xF5, 0xD0, /* 0xE0-0xE3 */
+	0xF5, 0xD3, 0xDB, 0x47, 0xDB, 0x48, 0xDB, 0x49, /* 0xE4-0xE7 */
+	0xBF, 0xE7, 0xDB, 0x4A, 0xB9, 0xF2, 0xF5, 0xBC, /* 0xE8-0xEB */
+	0xF5, 0xCD, 0xDB, 0x4B, 0xDB, 0x4C, 0xC2, 0xB7, /* 0xEC-0xEF */
+	0xDB, 0x4D, 0xDB, 0x4E, 0xDB, 0x4F, 0xCC, 0xF8, /* 0xF0-0xF3 */
+	0xDB, 0x50, 0xBC, 0xF9, 0xDB, 0x51, 0xF5, 0xCE, /* 0xF4-0xF7 */
+	0xF5, 0xCF, 0xF5, 0xD1, 0xB6, 0xE5, 0xF5, 0xD2, /* 0xF8-0xFB */
+	0xDB, 0x52, 0xF5, 0xD5, 0xDB, 0x53, 0xDB, 0x54, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_8E[512] = {
+	0xDB, 0x55, 0xDB, 0x56, 0xDB, 0x57, 0xDB, 0x58, /* 0x00-0x03 */
+	0xDB, 0x59, 0xF5, 0xBD, 0xDB, 0x5A, 0xDB, 0x5B, /* 0x04-0x07 */
+	0xDB, 0x5C, 0xF5, 0xD4, 0xD3, 0xBB, 0xDB, 0x5D, /* 0x08-0x0B */
+	0xB3, 0xEC, 0xDB, 0x5E, 0xDB, 0x5F, 0xCC, 0xA4, /* 0x0C-0x0F */
+	0xDB, 0x60, 0xDB, 0x61, 0xDB, 0x62, 0xDB, 0x63, /* 0x10-0x13 */
+	0xF5, 0xD6, 0xDB, 0x64, 0xDB, 0x65, 0xDB, 0x66, /* 0x14-0x17 */
+	0xDB, 0x67, 0xDB, 0x68, 0xDB, 0x69, 0xDB, 0x6A, /* 0x18-0x1B */
+	0xDB, 0x6B, 0xF5, 0xD7, 0xBE, 0xE1, 0xF5, 0xD8, /* 0x1C-0x1F */
+	0xDB, 0x6C, 0xDB, 0x6D, 0xCC, 0xDF, 0xF5, 0xDB, /* 0x20-0x23 */
+	0xDB, 0x6E, 0xDB, 0x6F, 0xDB, 0x70, 0xDB, 0x71, /* 0x24-0x27 */
+	0xDB, 0x72, 0xB2, 0xC8, 0xD7, 0xD9, 0xDB, 0x73, /* 0x28-0x2B */
+	0xF5, 0xD9, 0xDB, 0x74, 0xF5, 0xDA, 0xF5, 0xDC, /* 0x2C-0x2F */
+	0xDB, 0x75, 0xF5, 0xE2, 0xDB, 0x76, 0xDB, 0x77, /* 0x30-0x33 */
+	0xDB, 0x78, 0xF5, 0xE0, 0xDB, 0x79, 0xDB, 0x7A, /* 0x34-0x37 */
+	0xDB, 0x7B, 0xF5, 0xDF, 0xF5, 0xDD, 0xDB, 0x7C, /* 0x38-0x3B */
+	0xDB, 0x7D, 0xF5, 0xE1, 0xDB, 0x7E, 0xDB, 0x80, /* 0x3C-0x3F */
+	0xF5, 0xDE, 0xF5, 0xE4, 0xF5, 0xE5, 0xDB, 0x81, /* 0x40-0x43 */
+	0xCC, 0xE3, 0xDB, 0x82, 0xDB, 0x83, 0xE5, 0xBF, /* 0x44-0x47 */
+	0xB5, 0xB8, 0xF5, 0xE3, 0xF5, 0xE8, 0xCC, 0xA3, /* 0x48-0x4B */
+	0xDB, 0x84, 0xDB, 0x85, 0xDB, 0x86, 0xDB, 0x87, /* 0x4C-0x4F */
+	0xDB, 0x88, 0xF5, 0xE6, 0xF5, 0xE7, 0xDB, 0x89, /* 0x50-0x53 */
+	0xDB, 0x8A, 0xDB, 0x8B, 0xDB, 0x8C, 0xDB, 0x8D, /* 0x54-0x57 */
+	0xDB, 0x8E, 0xF5, 0xBE, 0xDB, 0x8F, 0xDB, 0x90, /* 0x58-0x5B */
+	0xDB, 0x91, 0xDB, 0x92, 0xDB, 0x93, 0xDB, 0x94, /* 0x5C-0x5F */
+	0xDB, 0x95, 0xDB, 0x96, 0xDB, 0x97, 0xDB, 0x98, /* 0x60-0x63 */
+	0xDB, 0x99, 0xDB, 0x9A, 0xB1, 0xC4, 0xDB, 0x9B, /* 0x64-0x67 */
+	0xDB, 0x9C, 0xF5, 0xBF, 0xDB, 0x9D, 0xDB, 0x9E, /* 0x68-0x6B */
+	0xB5, 0xC5, 0xB2, 0xE4, 0xDB, 0x9F, 0xF5, 0xEC, /* 0x6C-0x6F */
+	0xF5, 0xE9, 0xDB, 0xA0, 0xB6, 0xD7, 0xDC, 0x40, /* 0x70-0x73 */
+	0xF5, 0xED, 0xDC, 0x41, 0xF5, 0xEA, 0xDC, 0x42, /* 0x74-0x77 */
+	0xDC, 0x43, 0xDC, 0x44, 0xDC, 0x45, 0xDC, 0x46, /* 0x78-0x7B */
+	0xF5, 0xEB, 0xDC, 0x47, 0xDC, 0x48, 0xB4, 0xDA, /* 0x7C-0x7F */
+	
+	0xDC, 0x49, 0xD4, 0xEA, 0xDC, 0x4A, 0xDC, 0x4B, /* 0x80-0x83 */
+	0xDC, 0x4C, 0xF5, 0xEE, 0xDC, 0x4D, 0xB3, 0xF9, /* 0x84-0x87 */
+	0xDC, 0x4E, 0xDC, 0x4F, 0xDC, 0x50, 0xDC, 0x51, /* 0x88-0x8B */
+	0xDC, 0x52, 0xDC, 0x53, 0xDC, 0x54, 0xF5, 0xEF, /* 0x8C-0x8F */
+	0xF5, 0xF1, 0xDC, 0x55, 0xDC, 0x56, 0xDC, 0x57, /* 0x90-0x93 */
+	0xF5, 0xF0, 0xDC, 0x58, 0xDC, 0x59, 0xDC, 0x5A, /* 0x94-0x97 */
+	0xDC, 0x5B, 0xDC, 0x5C, 0xDC, 0x5D, 0xDC, 0x5E, /* 0x98-0x9B */
+	0xF5, 0xF2, 0xDC, 0x5F, 0xF5, 0xF3, 0xDC, 0x60, /* 0x9C-0x9F */
+	0xDC, 0x61, 0xDC, 0x62, 0xDC, 0x63, 0xDC, 0x64, /* 0xA0-0xA3 */
+	0xDC, 0x65, 0xDC, 0x66, 0xDC, 0x67, 0xDC, 0x68, /* 0xA4-0xA7 */
+	0xDC, 0x69, 0xDC, 0x6A, 0xDC, 0x6B, 0xC9, 0xED, /* 0xA8-0xAB */
+	0xB9, 0xAA, 0xDC, 0x6C, 0xDC, 0x6D, 0xC7, 0xFB, /* 0xAC-0xAF */
+	0xDC, 0x6E, 0xDC, 0x6F, 0xB6, 0xE3, 0xDC, 0x70, /* 0xB0-0xB3 */
+	0xDC, 0x71, 0xDC, 0x72, 0xDC, 0x73, 0xDC, 0x74, /* 0xB4-0xB7 */
+	0xDC, 0x75, 0xDC, 0x76, 0xCC, 0xC9, 0xDC, 0x77, /* 0xB8-0xBB */
+	0xDC, 0x78, 0xDC, 0x79, 0xDC, 0x7A, 0xDC, 0x7B, /* 0xBC-0xBF */
+	0xDC, 0x7C, 0xDC, 0x7D, 0xDC, 0x7E, 0xDC, 0x80, /* 0xC0-0xC3 */
+	0xDC, 0x81, 0xDC, 0x82, 0xDC, 0x83, 0xDC, 0x84, /* 0xC4-0xC7 */
+	0xDC, 0x85, 0xDC, 0x86, 0xDC, 0x87, 0xDC, 0x88, /* 0xC8-0xCB */
+	0xDC, 0x89, 0xDC, 0x8A, 0xEA, 0xA6, 0xDC, 0x8B, /* 0xCC-0xCF */
+	0xDC, 0x8C, 0xDC, 0x8D, 0xDC, 0x8E, 0xDC, 0x8F, /* 0xD0-0xD3 */
+	0xDC, 0x90, 0xDC, 0x91, 0xDC, 0x92, 0xDC, 0x93, /* 0xD4-0xD7 */
+	0xDC, 0x94, 0xDC, 0x95, 0xDC, 0x96, 0xDC, 0x97, /* 0xD8-0xDB */
+	0xDC, 0x98, 0xDC, 0x99, 0xDC, 0x9A, 0xDC, 0x9B, /* 0xDC-0xDF */
+	0xDC, 0x9C, 0xDC, 0x9D, 0xDC, 0x9E, 0xDC, 0x9F, /* 0xE0-0xE3 */
+	0xDC, 0xA0, 0xDD, 0x40, 0xDD, 0x41, 0xDD, 0x42, /* 0xE4-0xE7 */
+	0xDD, 0x43, 0xDD, 0x44, 0xDD, 0x45, 0xDD, 0x46, /* 0xE8-0xEB */
+	0xDD, 0x47, 0xDD, 0x48, 0xDD, 0x49, 0xDD, 0x4A, /* 0xEC-0xEF */
+	0xDD, 0x4B, 0xDD, 0x4C, 0xDD, 0x4D, 0xDD, 0x4E, /* 0xF0-0xF3 */
+	0xDD, 0x4F, 0xDD, 0x50, 0xDD, 0x51, 0xDD, 0x52, /* 0xF4-0xF7 */
+	0xDD, 0x53, 0xDD, 0x54, 0xDD, 0x55, 0xDD, 0x56, /* 0xF8-0xFB */
+	0xDD, 0x57, 0xDD, 0x58, 0xDD, 0x59, 0xDD, 0x5A, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_8F[512] = {
+	0xDD, 0x5B, 0xDD, 0x5C, 0xDD, 0x5D, 0xDD, 0x5E, /* 0x00-0x03 */
+	0xDD, 0x5F, 0xDD, 0x60, 0xDD, 0x61, 0xDD, 0x62, /* 0x04-0x07 */
+	0xDD, 0x63, 0xDD, 0x64, 0xDD, 0x65, 0xDD, 0x66, /* 0x08-0x0B */
+	0xDD, 0x67, 0xDD, 0x68, 0xDD, 0x69, 0xDD, 0x6A, /* 0x0C-0x0F */
+	0xDD, 0x6B, 0xDD, 0x6C, 0xDD, 0x6D, 0xDD, 0x6E, /* 0x10-0x13 */
+	0xDD, 0x6F, 0xDD, 0x70, 0xDD, 0x71, 0xDD, 0x72, /* 0x14-0x17 */
+	0xDD, 0x73, 0xDD, 0x74, 0xDD, 0x75, 0xDD, 0x76, /* 0x18-0x1B */
+	0xDD, 0x77, 0xDD, 0x78, 0xDD, 0x79, 0xDD, 0x7A, /* 0x1C-0x1F */
+	0xDD, 0x7B, 0xDD, 0x7C, 0xDD, 0x7D, 0xDD, 0x7E, /* 0x20-0x23 */
+	0xDD, 0x80, 0xDD, 0x81, 0xDD, 0x82, 0xDD, 0x83, /* 0x24-0x27 */
+	0xDD, 0x84, 0xDD, 0x85, 0xDD, 0x86, 0xDD, 0x87, /* 0x28-0x2B */
+	0xDD, 0x88, 0xDD, 0x89, 0xDD, 0x8A, 0xDD, 0x8B, /* 0x2C-0x2F */
+	0xDD, 0x8C, 0xDD, 0x8D, 0xDD, 0x8E, 0xDD, 0x8F, /* 0x30-0x33 */
+	0xDD, 0x90, 0xDD, 0x91, 0xDD, 0x92, 0xDD, 0x93, /* 0x34-0x37 */
+	0xDD, 0x94, 0xDD, 0x95, 0xDD, 0x96, 0xDD, 0x97, /* 0x38-0x3B */
+	0xDD, 0x98, 0xDD, 0x99, 0xDD, 0x9A, 0xDD, 0x9B, /* 0x3C-0x3F */
+	0xDD, 0x9C, 0xDD, 0x9D, 0xDD, 0x9E, 0xDD, 0x9F, /* 0x40-0x43 */
+	0xDD, 0xA0, 0xDE, 0x40, 0xDE, 0x41, 0xDE, 0x42, /* 0x44-0x47 */
+	0xDE, 0x43, 0xDE, 0x44, 0xDE, 0x45, 0xDE, 0x46, /* 0x48-0x4B */
+	0xDE, 0x47, 0xDE, 0x48, 0xDE, 0x49, 0xDE, 0x4A, /* 0x4C-0x4F */
+	0xDE, 0x4B, 0xDE, 0x4C, 0xDE, 0x4D, 0xDE, 0x4E, /* 0x50-0x53 */
+	0xDE, 0x4F, 0xDE, 0x50, 0xDE, 0x51, 0xDE, 0x52, /* 0x54-0x57 */
+	0xDE, 0x53, 0xDE, 0x54, 0xDE, 0x55, 0xDE, 0x56, /* 0x58-0x5B */
+	0xDE, 0x57, 0xDE, 0x58, 0xDE, 0x59, 0xDE, 0x5A, /* 0x5C-0x5F */
+	0xDE, 0x5B, 0xDE, 0x5C, 0xDE, 0x5D, 0xDE, 0x5E, /* 0x60-0x63 */
+	0xDE, 0x5F, 0xDE, 0x60, 0xB3, 0xB5, 0xD4, 0xFE, /* 0x64-0x67 */
+	0xB9, 0xEC, 0xD0, 0xF9, 0xDE, 0x61, 0xE9, 0xED, /* 0x68-0x6B */
+	0xD7, 0xAA, 0xE9, 0xEE, 0xC2, 0xD6, 0xC8, 0xED, /* 0x6C-0x6F */
+	0xBA, 0xE4, 0xE9, 0xEF, 0xE9, 0xF0, 0xE9, 0xF1, /* 0x70-0x73 */
+	0xD6, 0xE1, 0xE9, 0xF2, 0xE9, 0xF3, 0xE9, 0xF5, /* 0x74-0x77 */
+	0xE9, 0xF4, 0xE9, 0xF6, 0xE9, 0xF7, 0xC7, 0xE1, /* 0x78-0x7B */
+	0xE9, 0xF8, 0xD4, 0xD8, 0xE9, 0xF9, 0xBD, 0xCE, /* 0x7C-0x7F */
+	
+	0xDE, 0x62, 0xE9, 0xFA, 0xE9, 0xFB, 0xBD, 0xCF, /* 0x80-0x83 */
+	0xE9, 0xFC, 0xB8, 0xA8, 0xC1, 0xBE, 0xE9, 0xFD, /* 0x84-0x87 */
+	0xB1, 0xB2, 0xBB, 0xD4, 0xB9, 0xF5, 0xE9, 0xFE, /* 0x88-0x8B */
+	0xDE, 0x63, 0xEA, 0xA1, 0xEA, 0xA2, 0xEA, 0xA3, /* 0x8C-0x8F */
+	0xB7, 0xF8, 0xBC, 0xAD, 0xDE, 0x64, 0xCA, 0xE4, /* 0x90-0x93 */
+	0xE0, 0xCE, 0xD4, 0xAF, 0xCF, 0xBD, 0xD5, 0xB7, /* 0x94-0x97 */
+	0xEA, 0xA4, 0xD5, 0xDE, 0xEA, 0xA5, 0xD0, 0xC1, /* 0x98-0x9B */
+	0xB9, 0xBC, 0xDE, 0x65, 0xB4, 0xC7, 0xB1, 0xD9, /* 0x9C-0x9F */
+	0xDE, 0x66, 0xDE, 0x67, 0xDE, 0x68, 0xC0, 0xB1, /* 0xA0-0xA3 */
+	0xDE, 0x69, 0xDE, 0x6A, 0xDE, 0x6B, 0xDE, 0x6C, /* 0xA4-0xA7 */
+	0xB1, 0xE6, 0xB1, 0xE7, 0xDE, 0x6D, 0xB1, 0xE8, /* 0xA8-0xAB */
+	0xDE, 0x6E, 0xDE, 0x6F, 0xDE, 0x70, 0xDE, 0x71, /* 0xAC-0xAF */
+	0xB3, 0xBD, 0xC8, 0xE8, 0xDE, 0x72, 0xDE, 0x73, /* 0xB0-0xB3 */
+	0xDE, 0x74, 0xDE, 0x75, 0xE5, 0xC1, 0xDE, 0x76, /* 0xB4-0xB7 */
+	0xDE, 0x77, 0xB1, 0xDF, 0xDE, 0x78, 0xDE, 0x79, /* 0xB8-0xBB */
+	0xDE, 0x7A, 0xC1, 0xC9, 0xB4, 0xEF, 0xDE, 0x7B, /* 0xBC-0xBF */
+	0xDE, 0x7C, 0xC7, 0xA8, 0xD3, 0xD8, 0xDE, 0x7D, /* 0xC0-0xC3 */
+	0xC6, 0xF9, 0xD1, 0xB8, 0xDE, 0x7E, 0xB9, 0xFD, /* 0xC4-0xC7 */
+	0xC2, 0xF5, 0xDE, 0x80, 0xDE, 0x81, 0xDE, 0x82, /* 0xC8-0xCB */
+	0xDE, 0x83, 0xDE, 0x84, 0xD3, 0xAD, 0xDE, 0x85, /* 0xCC-0xCF */
+	0xD4, 0xCB, 0xBD, 0xFC, 0xDE, 0x86, 0xE5, 0xC2, /* 0xD0-0xD3 */
+	0xB7, 0xB5, 0xE5, 0xC3, 0xDE, 0x87, 0xDE, 0x88, /* 0xD4-0xD7 */
+	0xBB, 0xB9, 0xD5, 0xE2, 0xDE, 0x89, 0xBD, 0xF8, /* 0xD8-0xDB */
+	0xD4, 0xB6, 0xCE, 0xA5, 0xC1, 0xAC, 0xB3, 0xD9, /* 0xDC-0xDF */
+	0xDE, 0x8A, 0xDE, 0x8B, 0xCC, 0xF6, 0xDE, 0x8C, /* 0xE0-0xE3 */
+	0xE5, 0xC6, 0xE5, 0xC4, 0xE5, 0xC8, 0xDE, 0x8D, /* 0xE4-0xE7 */
+	0xE5, 0xCA, 0xE5, 0xC7, 0xB5, 0xCF, 0xC6, 0xC8, /* 0xE8-0xEB */
+	0xDE, 0x8E, 0xB5, 0xFC, 0xE5, 0xC5, 0xDE, 0x8F, /* 0xEC-0xEF */
+	0xCA, 0xF6, 0xDE, 0x90, 0xDE, 0x91, 0xE5, 0xC9, /* 0xF0-0xF3 */
+	0xDE, 0x92, 0xDE, 0x93, 0xDE, 0x94, 0xC3, 0xD4, /* 0xF4-0xF7 */
+	0xB1, 0xC5, 0xBC, 0xA3, 0xDE, 0x95, 0xDE, 0x96, /* 0xF8-0xFB */
+	0xDE, 0x97, 0xD7, 0xB7, 0xDE, 0x98, 0xDE, 0x99, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_90[512] = {
+	0xCD, 0xCB, 0xCB, 0xCD, 0xCA, 0xCA, 0xCC, 0xD3, /* 0x00-0x03 */
+	0xE5, 0xCC, 0xE5, 0xCB, 0xC4, 0xE6, 0xDE, 0x9A, /* 0x04-0x07 */
+	0xDE, 0x9B, 0xD1, 0xA1, 0xD1, 0xB7, 0xE5, 0xCD, /* 0x08-0x0B */
+	0xDE, 0x9C, 0xE5, 0xD0, 0xDE, 0x9D, 0xCD, 0xB8, /* 0x0C-0x0F */
+	0xD6, 0xF0, 0xE5, 0xCF, 0xB5, 0xDD, 0xDE, 0x9E, /* 0x10-0x13 */
+	0xCD, 0xBE, 0xDE, 0x9F, 0xE5, 0xD1, 0xB6, 0xBA, /* 0x14-0x17 */
+	0xDE, 0xA0, 0xDF, 0x40, 0xCD, 0xA8, 0xB9, 0xE4, /* 0x18-0x1B */
+	0xDF, 0x41, 0xCA, 0xC5, 0xB3, 0xD1, 0xCB, 0xD9, /* 0x1C-0x1F */
+	0xD4, 0xEC, 0xE5, 0xD2, 0xB7, 0xEA, 0xDF, 0x42, /* 0x20-0x23 */
+	0xDF, 0x43, 0xDF, 0x44, 0xE5, 0xCE, 0xDF, 0x45, /* 0x24-0x27 */
+	0xDF, 0x46, 0xDF, 0x47, 0xDF, 0x48, 0xDF, 0x49, /* 0x28-0x2B */
+	0xDF, 0x4A, 0xE5, 0xD5, 0xB4, 0xFE, 0xE5, 0xD6, /* 0x2C-0x2F */
+	0xDF, 0x4B, 0xDF, 0x4C, 0xDF, 0x4D, 0xDF, 0x4E, /* 0x30-0x33 */
+	0xDF, 0x4F, 0xE5, 0xD3, 0xE5, 0xD4, 0xDF, 0x50, /* 0x34-0x37 */
+	0xD2, 0xDD, 0xDF, 0x51, 0xDF, 0x52, 0xC2, 0xDF, /* 0x38-0x3B */
+	0xB1, 0xC6, 0xDF, 0x53, 0xD3, 0xE2, 0xDF, 0x54, /* 0x3C-0x3F */
+	0xDF, 0x55, 0xB6, 0xDD, 0xCB, 0xEC, 0xDF, 0x56, /* 0x40-0x43 */
+	0xE5, 0xD7, 0xDF, 0x57, 0xDF, 0x58, 0xD3, 0xF6, /* 0x44-0x47 */
+	0xDF, 0x59, 0xDF, 0x5A, 0xDF, 0x5B, 0xDF, 0x5C, /* 0x48-0x4B */
+	0xDF, 0x5D, 0xB1, 0xE9, 0xDF, 0x5E, 0xB6, 0xF4, /* 0x4C-0x4F */
+	0xE5, 0xDA, 0xE5, 0xD8, 0xE5, 0xD9, 0xB5, 0xC0, /* 0x50-0x53 */
+	0xDF, 0x5F, 0xDF, 0x60, 0xDF, 0x61, 0xD2, 0xC5, /* 0x54-0x57 */
+	0xE5, 0xDC, 0xDF, 0x62, 0xDF, 0x63, 0xE5, 0xDE, /* 0x58-0x5B */
+	0xDF, 0x64, 0xDF, 0x65, 0xDF, 0x66, 0xDF, 0x67, /* 0x5C-0x5F */
+	0xDF, 0x68, 0xDF, 0x69, 0xE5, 0xDD, 0xC7, 0xB2, /* 0x60-0x63 */
+	0xDF, 0x6A, 0xD2, 0xA3, 0xDF, 0x6B, 0xDF, 0x6C, /* 0x64-0x67 */
+	0xE5, 0xDB, 0xDF, 0x6D, 0xDF, 0x6E, 0xDF, 0x6F, /* 0x68-0x6B */
+	0xDF, 0x70, 0xD4, 0xE2, 0xD5, 0xDA, 0xDF, 0x71, /* 0x6C-0x6F */
+	0xDF, 0x72, 0xDF, 0x73, 0xDF, 0x74, 0xDF, 0x75, /* 0x70-0x73 */
+	0xE5, 0xE0, 0xD7, 0xF1, 0xDF, 0x76, 0xDF, 0x77, /* 0x74-0x77 */
+	0xDF, 0x78, 0xDF, 0x79, 0xDF, 0x7A, 0xDF, 0x7B, /* 0x78-0x7B */
+	0xDF, 0x7C, 0xE5, 0xE1, 0xDF, 0x7D, 0xB1, 0xDC, /* 0x7C-0x7F */
+	
+	0xD1, 0xFB, 0xDF, 0x7E, 0xE5, 0xE2, 0xE5, 0xE4, /* 0x80-0x83 */
+	0xDF, 0x80, 0xDF, 0x81, 0xDF, 0x82, 0xDF, 0x83, /* 0x84-0x87 */
+	0xE5, 0xE3, 0xDF, 0x84, 0xDF, 0x85, 0xE5, 0xE5, /* 0x88-0x8B */
+	0xDF, 0x86, 0xDF, 0x87, 0xDF, 0x88, 0xDF, 0x89, /* 0x8C-0x8F */
+	0xDF, 0x8A, 0xD2, 0xD8, 0xDF, 0x8B, 0xB5, 0xCB, /* 0x90-0x93 */
+	0xDF, 0x8C, 0xE7, 0xDF, 0xDF, 0x8D, 0xDA, 0xF5, /* 0x94-0x97 */
+	0xDF, 0x8E, 0xDA, 0xF8, 0xDF, 0x8F, 0xDA, 0xF6, /* 0x98-0x9B */
+	0xDF, 0x90, 0xDA, 0xF7, 0xDF, 0x91, 0xDF, 0x92, /* 0x9C-0x9F */
+	0xDF, 0x93, 0xDA, 0xFA, 0xD0, 0xCF, 0xC4, 0xC7, /* 0xA0-0xA3 */
+	0xDF, 0x94, 0xDF, 0x95, 0xB0, 0xEE, 0xDF, 0x96, /* 0xA4-0xA7 */
+	0xDF, 0x97, 0xDF, 0x98, 0xD0, 0xB0, 0xDF, 0x99, /* 0xA8-0xAB */
+	0xDA, 0xF9, 0xDF, 0x9A, 0xD3, 0xCA, 0xBA, 0xAA, /* 0xAC-0xAF */
+	0xDB, 0xA2, 0xC7, 0xF1, 0xDF, 0x9B, 0xDA, 0xFC, /* 0xB0-0xB3 */
+	0xDA, 0xFB, 0xC9, 0xDB, 0xDA, 0xFD, 0xDF, 0x9C, /* 0xB4-0xB7 */
+	0xDB, 0xA1, 0xD7, 0xDE, 0xDA, 0xFE, 0xC1, 0xDA, /* 0xB8-0xBB */
+	0xDF, 0x9D, 0xDF, 0x9E, 0xDB, 0xA5, 0xDF, 0x9F, /* 0xBC-0xBF */
+	0xDF, 0xA0, 0xD3, 0xF4, 0xE0, 0x40, 0xE0, 0x41, /* 0xC0-0xC3 */
+	0xDB, 0xA7, 0xDB, 0xA4, 0xE0, 0x42, 0xDB, 0xA8, /* 0xC4-0xC7 */
+	0xE0, 0x43, 0xE0, 0x44, 0xBD, 0xBC, 0xE0, 0x45, /* 0xC8-0xCB */
+	0xE0, 0x46, 0xE0, 0x47, 0xC0, 0xC9, 0xDB, 0xA3, /* 0xCC-0xCF */
+	0xDB, 0xA6, 0xD6, 0xA3, 0xE0, 0x48, 0xDB, 0xA9, /* 0xD0-0xD3 */
+	0xE0, 0x49, 0xE0, 0x4A, 0xE0, 0x4B, 0xDB, 0xAD, /* 0xD4-0xD7 */
+	0xE0, 0x4C, 0xE0, 0x4D, 0xE0, 0x4E, 0xDB, 0xAE, /* 0xD8-0xDB */
+	0xDB, 0xAC, 0xBA, 0xC2, 0xE0, 0x4F, 0xE0, 0x50, /* 0xDC-0xDF */
+	0xE0, 0x51, 0xBF, 0xA4, 0xDB, 0xAB, 0xE0, 0x52, /* 0xE0-0xE3 */
+	0xE0, 0x53, 0xE0, 0x54, 0xDB, 0xAA, 0xD4, 0xC7, /* 0xE4-0xE7 */
+	0xB2, 0xBF, 0xE0, 0x55, 0xE0, 0x56, 0xDB, 0xAF, /* 0xE8-0xEB */
+	0xE0, 0x57, 0xB9, 0xF9, 0xE0, 0x58, 0xDB, 0xB0, /* 0xEC-0xEF */
+	0xE0, 0x59, 0xE0, 0x5A, 0xE0, 0x5B, 0xE0, 0x5C, /* 0xF0-0xF3 */
+	0xB3, 0xBB, 0xE0, 0x5D, 0xE0, 0x5E, 0xE0, 0x5F, /* 0xF4-0xF7 */
+	0xB5, 0xA6, 0xE0, 0x60, 0xE0, 0x61, 0xE0, 0x62, /* 0xF8-0xFB */
+	0xE0, 0x63, 0xB6, 0xBC, 0xDB, 0xB1, 0xE0, 0x64, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_91[512] = {
+	0xE0, 0x65, 0xE0, 0x66, 0xB6, 0xF5, 0xE0, 0x67, /* 0x00-0x03 */
+	0xDB, 0xB2, 0xE0, 0x68, 0xE0, 0x69, 0xE0, 0x6A, /* 0x04-0x07 */
+	0xE0, 0x6B, 0xE0, 0x6C, 0xE0, 0x6D, 0xE0, 0x6E, /* 0x08-0x0B */
+	0xE0, 0x6F, 0xE0, 0x70, 0xE0, 0x71, 0xE0, 0x72, /* 0x0C-0x0F */
+	0xE0, 0x73, 0xE0, 0x74, 0xE0, 0x75, 0xE0, 0x76, /* 0x10-0x13 */
+	0xE0, 0x77, 0xE0, 0x78, 0xE0, 0x79, 0xE0, 0x7A, /* 0x14-0x17 */
+	0xE0, 0x7B, 0xB1, 0xC9, 0xE0, 0x7C, 0xE0, 0x7D, /* 0x18-0x1B */
+	0xE0, 0x7E, 0xE0, 0x80, 0xDB, 0xB4, 0xE0, 0x81, /* 0x1C-0x1F */
+	0xE0, 0x82, 0xE0, 0x83, 0xDB, 0xB3, 0xDB, 0xB5, /* 0x20-0x23 */
+	0xE0, 0x84, 0xE0, 0x85, 0xE0, 0x86, 0xE0, 0x87, /* 0x24-0x27 */
+	0xE0, 0x88, 0xE0, 0x89, 0xE0, 0x8A, 0xE0, 0x8B, /* 0x28-0x2B */
+	0xE0, 0x8C, 0xE0, 0x8D, 0xE0, 0x8E, 0xDB, 0xB7, /* 0x2C-0x2F */
+	0xE0, 0x8F, 0xDB, 0xB6, 0xE0, 0x90, 0xE0, 0x91, /* 0x30-0x33 */
+	0xE0, 0x92, 0xE0, 0x93, 0xE0, 0x94, 0xE0, 0x95, /* 0x34-0x37 */
+	0xE0, 0x96, 0xDB, 0xB8, 0xE0, 0x97, 0xE0, 0x98, /* 0x38-0x3B */
+	0xE0, 0x99, 0xE0, 0x9A, 0xE0, 0x9B, 0xE0, 0x9C, /* 0x3C-0x3F */
+	0xE0, 0x9D, 0xE0, 0x9E, 0xE0, 0x9F, 0xDB, 0xB9, /* 0x40-0x43 */
+	0xE0, 0xA0, 0xE1, 0x40, 0xDB, 0xBA, 0xE1, 0x41, /* 0x44-0x47 */
+	0xE1, 0x42, 0xD3, 0xCF, 0xF4, 0xFA, 0xC7, 0xF5, /* 0x48-0x4B */
+	0xD7, 0xC3, 0xC5, 0xE4, 0xF4, 0xFC, 0xF4, 0xFD, /* 0x4C-0x4F */
+	0xF4, 0xFB, 0xE1, 0x43, 0xBE, 0xC6, 0xE1, 0x44, /* 0x50-0x53 */
+	0xE1, 0x45, 0xE1, 0x46, 0xE1, 0x47, 0xD0, 0xEF, /* 0x54-0x57 */
+	0xE1, 0x48, 0xE1, 0x49, 0xB7, 0xD3, 0xE1, 0x4A, /* 0x58-0x5B */
+	0xE1, 0x4B, 0xD4, 0xCD, 0xCC, 0xAA, 0xE1, 0x4C, /* 0x5C-0x5F */
+	0xE1, 0x4D, 0xF5, 0xA2, 0xF5, 0xA1, 0xBA, 0xA8, /* 0x60-0x63 */
+	0xF4, 0xFE, 0xCB, 0xD6, 0xE1, 0x4E, 0xE1, 0x4F, /* 0x64-0x67 */
+	0xE1, 0x50, 0xF5, 0xA4, 0xC0, 0xD2, 0xE1, 0x51, /* 0x68-0x6B */
+	0xB3, 0xEA, 0xE1, 0x52, 0xCD, 0xAA, 0xF5, 0xA5, /* 0x6C-0x6F */
+	0xF5, 0xA3, 0xBD, 0xB4, 0xF5, 0xA8, 0xE1, 0x53, /* 0x70-0x73 */
+	0xF5, 0xA9, 0xBD, 0xCD, 0xC3, 0xB8, 0xBF, 0xE1, /* 0x74-0x77 */
+	0xCB, 0xE1, 0xF5, 0xAA, 0xE1, 0x54, 0xE1, 0x55, /* 0x78-0x7B */
+	0xE1, 0x56, 0xF5, 0xA6, 0xF5, 0xA7, 0xC4, 0xF0, /* 0x7C-0x7F */
+	
+	0xE1, 0x57, 0xE1, 0x58, 0xE1, 0x59, 0xE1, 0x5A, /* 0x80-0x83 */
+	0xE1, 0x5B, 0xF5, 0xAC, 0xE1, 0x5C, 0xB4, 0xBC, /* 0x84-0x87 */
+	0xE1, 0x5D, 0xD7, 0xED, 0xE1, 0x5E, 0xB4, 0xD7, /* 0x88-0x8B */
+	0xF5, 0xAB, 0xF5, 0xAE, 0xE1, 0x5F, 0xE1, 0x60, /* 0x8C-0x8F */
+	0xF5, 0xAD, 0xF5, 0xAF, 0xD0, 0xD1, 0xE1, 0x61, /* 0x90-0x93 */
+	0xE1, 0x62, 0xE1, 0x63, 0xE1, 0x64, 0xE1, 0x65, /* 0x94-0x97 */
+	0xE1, 0x66, 0xE1, 0x67, 0xC3, 0xD1, 0xC8, 0xA9, /* 0x98-0x9B */
+	0xE1, 0x68, 0xE1, 0x69, 0xE1, 0x6A, 0xE1, 0x6B, /* 0x9C-0x9F */
+	0xE1, 0x6C, 0xE1, 0x6D, 0xF5, 0xB0, 0xF5, 0xB1, /* 0xA0-0xA3 */
+	0xE1, 0x6E, 0xE1, 0x6F, 0xE1, 0x70, 0xE1, 0x71, /* 0xA4-0xA7 */
+	0xE1, 0x72, 0xE1, 0x73, 0xF5, 0xB2, 0xE1, 0x74, /* 0xA8-0xAB */
+	0xE1, 0x75, 0xF5, 0xB3, 0xF5, 0xB4, 0xF5, 0xB5, /* 0xAC-0xAF */
+	0xE1, 0x76, 0xE1, 0x77, 0xE1, 0x78, 0xE1, 0x79, /* 0xB0-0xB3 */
+	0xF5, 0xB7, 0xF5, 0xB6, 0xE1, 0x7A, 0xE1, 0x7B, /* 0xB4-0xB7 */
+	0xE1, 0x7C, 0xE1, 0x7D, 0xF5, 0xB8, 0xE1, 0x7E, /* 0xB8-0xBB */
+	0xE1, 0x80, 0xE1, 0x81, 0xE1, 0x82, 0xE1, 0x83, /* 0xBC-0xBF */
+	0xE1, 0x84, 0xE1, 0x85, 0xE1, 0x86, 0xE1, 0x87, /* 0xC0-0xC3 */
+	0xE1, 0x88, 0xE1, 0x89, 0xE1, 0x8A, 0xB2, 0xC9, /* 0xC4-0xC7 */
+	0xE1, 0x8B, 0xD3, 0xD4, 0xCA, 0xCD, 0xE1, 0x8C, /* 0xC8-0xCB */
+	0xC0, 0xEF, 0xD6, 0xD8, 0xD2, 0xB0, 0xC1, 0xBF, /* 0xCC-0xCF */
+	0xE1, 0x8D, 0xBD, 0xF0, 0xE1, 0x8E, 0xE1, 0x8F, /* 0xD0-0xD3 */
+	0xE1, 0x90, 0xE1, 0x91, 0xE1, 0x92, 0xE1, 0x93, /* 0xD4-0xD7 */
+	0xE1, 0x94, 0xE1, 0x95, 0xE1, 0x96, 0xE1, 0x97, /* 0xD8-0xDB */
+	0xB8, 0xAA, 0xE1, 0x98, 0xE1, 0x99, 0xE1, 0x9A, /* 0xDC-0xDF */
+	0xE1, 0x9B, 0xE1, 0x9C, 0xE1, 0x9D, 0xE1, 0x9E, /* 0xE0-0xE3 */
+	0xE1, 0x9F, 0xE1, 0xA0, 0xE2, 0x40, 0xE2, 0x41, /* 0xE4-0xE7 */
+	0xE2, 0x42, 0xE2, 0x43, 0xE2, 0x44, 0xE2, 0x45, /* 0xE8-0xEB */
+	0xE2, 0x46, 0xE2, 0x47, 0xE2, 0x48, 0xE2, 0x49, /* 0xEC-0xEF */
+	0xE2, 0x4A, 0xE2, 0x4B, 0xE2, 0x4C, 0xE2, 0x4D, /* 0xF0-0xF3 */
+	0xE2, 0x4E, 0xE2, 0x4F, 0xE2, 0x50, 0xE2, 0x51, /* 0xF4-0xF7 */
+	0xE2, 0x52, 0xE2, 0x53, 0xE2, 0x54, 0xE2, 0x55, /* 0xF8-0xFB */
+	0xE2, 0x56, 0xE2, 0x57, 0xE2, 0x58, 0xE2, 0x59, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_92[512] = {
+	0xE2, 0x5A, 0xE2, 0x5B, 0xE2, 0x5C, 0xE2, 0x5D, /* 0x00-0x03 */
+	0xE2, 0x5E, 0xE2, 0x5F, 0xE2, 0x60, 0xE2, 0x61, /* 0x04-0x07 */
+	0xE2, 0x62, 0xE2, 0x63, 0xE2, 0x64, 0xE2, 0x65, /* 0x08-0x0B */
+	0xE2, 0x66, 0xE2, 0x67, 0xE2, 0x68, 0xE2, 0x69, /* 0x0C-0x0F */
+	0xE2, 0x6A, 0xE2, 0x6B, 0xE2, 0x6C, 0xE2, 0x6D, /* 0x10-0x13 */
+	0xE2, 0x6E, 0xE2, 0x6F, 0xE2, 0x70, 0xE2, 0x71, /* 0x14-0x17 */
+	0xE2, 0x72, 0xE2, 0x73, 0xE2, 0x74, 0xE2, 0x75, /* 0x18-0x1B */
+	0xE2, 0x76, 0xE2, 0x77, 0xE2, 0x78, 0xE2, 0x79, /* 0x1C-0x1F */
+	0xE2, 0x7A, 0xE2, 0x7B, 0xE2, 0x7C, 0xE2, 0x7D, /* 0x20-0x23 */
+	0xE2, 0x7E, 0xE2, 0x80, 0xE2, 0x81, 0xE2, 0x82, /* 0x24-0x27 */
+	0xE2, 0x83, 0xE2, 0x84, 0xE2, 0x85, 0xE2, 0x86, /* 0x28-0x2B */
+	0xE2, 0x87, 0xE2, 0x88, 0xE2, 0x89, 0xE2, 0x8A, /* 0x2C-0x2F */
+	0xE2, 0x8B, 0xE2, 0x8C, 0xE2, 0x8D, 0xE2, 0x8E, /* 0x30-0x33 */
+	0xE2, 0x8F, 0xE2, 0x90, 0xE2, 0x91, 0xE2, 0x92, /* 0x34-0x37 */
+	0xE2, 0x93, 0xE2, 0x94, 0xE2, 0x95, 0xE2, 0x96, /* 0x38-0x3B */
+	0xE2, 0x97, 0xE2, 0x98, 0xE2, 0x99, 0xE2, 0x9A, /* 0x3C-0x3F */
+	0xE2, 0x9B, 0xE2, 0x9C, 0xE2, 0x9D, 0xE2, 0x9E, /* 0x40-0x43 */
+	0xE2, 0x9F, 0xE2, 0xA0, 0xE3, 0x40, 0xE3, 0x41, /* 0x44-0x47 */
+	0xE3, 0x42, 0xE3, 0x43, 0xE3, 0x44, 0xE3, 0x45, /* 0x48-0x4B */
+	0xE3, 0x46, 0xE3, 0x47, 0xE3, 0x48, 0xE3, 0x49, /* 0x4C-0x4F */
+	0xE3, 0x4A, 0xE3, 0x4B, 0xE3, 0x4C, 0xE3, 0x4D, /* 0x50-0x53 */
+	0xE3, 0x4E, 0xE3, 0x4F, 0xE3, 0x50, 0xE3, 0x51, /* 0x54-0x57 */
+	0xE3, 0x52, 0xE3, 0x53, 0xE3, 0x54, 0xE3, 0x55, /* 0x58-0x5B */
+	0xE3, 0x56, 0xE3, 0x57, 0xE3, 0x58, 0xE3, 0x59, /* 0x5C-0x5F */
+	0xE3, 0x5A, 0xE3, 0x5B, 0xE3, 0x5C, 0xE3, 0x5D, /* 0x60-0x63 */
+	0xE3, 0x5E, 0xE3, 0x5F, 0xE3, 0x60, 0xE3, 0x61, /* 0x64-0x67 */
+	0xE3, 0x62, 0xE3, 0x63, 0xE3, 0x64, 0xE3, 0x65, /* 0x68-0x6B */
+	0xE3, 0x66, 0xE3, 0x67, 0xE3, 0x68, 0xE3, 0x69, /* 0x6C-0x6F */
+	0xE3, 0x6A, 0xE3, 0x6B, 0xE3, 0x6C, 0xE3, 0x6D, /* 0x70-0x73 */
+	0xBC, 0xF8, 0xE3, 0x6E, 0xE3, 0x6F, 0xE3, 0x70, /* 0x74-0x77 */
+	0xE3, 0x71, 0xE3, 0x72, 0xE3, 0x73, 0xE3, 0x74, /* 0x78-0x7B */
+	0xE3, 0x75, 0xE3, 0x76, 0xE3, 0x77, 0xE3, 0x78, /* 0x7C-0x7F */
+	
+	0xE3, 0x79, 0xE3, 0x7A, 0xE3, 0x7B, 0xE3, 0x7C, /* 0x80-0x83 */
+	0xE3, 0x7D, 0xE3, 0x7E, 0xE3, 0x80, 0xE3, 0x81, /* 0x84-0x87 */
+	0xE3, 0x82, 0xE3, 0x83, 0xE3, 0x84, 0xE3, 0x85, /* 0x88-0x8B */
+	0xE3, 0x86, 0xE3, 0x87, 0xF6, 0xC6, 0xE3, 0x88, /* 0x8C-0x8F */
+	0xE3, 0x89, 0xE3, 0x8A, 0xE3, 0x8B, 0xE3, 0x8C, /* 0x90-0x93 */
+	0xE3, 0x8D, 0xE3, 0x8E, 0xE3, 0x8F, 0xE3, 0x90, /* 0x94-0x97 */
+	0xE3, 0x91, 0xE3, 0x92, 0xE3, 0x93, 0xE3, 0x94, /* 0x98-0x9B */
+	0xE3, 0x95, 0xE3, 0x96, 0xE3, 0x97, 0xE3, 0x98, /* 0x9C-0x9F */
+	0xE3, 0x99, 0xE3, 0x9A, 0xE3, 0x9B, 0xE3, 0x9C, /* 0xA0-0xA3 */
+	0xE3, 0x9D, 0xE3, 0x9E, 0xE3, 0x9F, 0xE3, 0xA0, /* 0xA4-0xA7 */
+	0xE4, 0x40, 0xE4, 0x41, 0xE4, 0x42, 0xE4, 0x43, /* 0xA8-0xAB */
+	0xE4, 0x44, 0xE4, 0x45, 0xF6, 0xC7, 0xE4, 0x46, /* 0xAC-0xAF */
+	0xE4, 0x47, 0xE4, 0x48, 0xE4, 0x49, 0xE4, 0x4A, /* 0xB0-0xB3 */
+	0xE4, 0x4B, 0xE4, 0x4C, 0xE4, 0x4D, 0xE4, 0x4E, /* 0xB4-0xB7 */
+	0xE4, 0x4F, 0xE4, 0x50, 0xE4, 0x51, 0xE4, 0x52, /* 0xB8-0xBB */
+	0xE4, 0x53, 0xE4, 0x54, 0xE4, 0x55, 0xE4, 0x56, /* 0xBC-0xBF */
+	0xE4, 0x57, 0xE4, 0x58, 0xE4, 0x59, 0xE4, 0x5A, /* 0xC0-0xC3 */
+	0xE4, 0x5B, 0xE4, 0x5C, 0xE4, 0x5D, 0xE4, 0x5E, /* 0xC4-0xC7 */
+	0xF6, 0xC8, 0xE4, 0x5F, 0xE4, 0x60, 0xE4, 0x61, /* 0xC8-0xCB */
+	0xE4, 0x62, 0xE4, 0x63, 0xE4, 0x64, 0xE4, 0x65, /* 0xCC-0xCF */
+	0xE4, 0x66, 0xE4, 0x67, 0xE4, 0x68, 0xE4, 0x69, /* 0xD0-0xD3 */
+	0xE4, 0x6A, 0xE4, 0x6B, 0xE4, 0x6C, 0xE4, 0x6D, /* 0xD4-0xD7 */
+	0xE4, 0x6E, 0xE4, 0x6F, 0xE4, 0x70, 0xE4, 0x71, /* 0xD8-0xDB */
+	0xE4, 0x72, 0xE4, 0x73, 0xE4, 0x74, 0xE4, 0x75, /* 0xDC-0xDF */
+	0xE4, 0x76, 0xE4, 0x77, 0xE4, 0x78, 0xE4, 0x79, /* 0xE0-0xE3 */
+	0xE4, 0x7A, 0xE4, 0x7B, 0xE4, 0x7C, 0xE4, 0x7D, /* 0xE4-0xE7 */
+	0xE4, 0x7E, 0xE4, 0x80, 0xE4, 0x81, 0xE4, 0x82, /* 0xE8-0xEB */
+	0xE4, 0x83, 0xE4, 0x84, 0xE4, 0x85, 0xE4, 0x86, /* 0xEC-0xEF */
+	0xE4, 0x87, 0xE4, 0x88, 0xE4, 0x89, 0xE4, 0x8A, /* 0xF0-0xF3 */
+	0xE4, 0x8B, 0xE4, 0x8C, 0xE4, 0x8D, 0xE4, 0x8E, /* 0xF4-0xF7 */
+	0xE4, 0x8F, 0xE4, 0x90, 0xE4, 0x91, 0xE4, 0x92, /* 0xF8-0xFB */
+	0xE4, 0x93, 0xE4, 0x94, 0xE4, 0x95, 0xE4, 0x96, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_93[512] = {
+	0xE4, 0x97, 0xE4, 0x98, 0xE4, 0x99, 0xE4, 0x9A, /* 0x00-0x03 */
+	0xE4, 0x9B, 0xE4, 0x9C, 0xE4, 0x9D, 0xE4, 0x9E, /* 0x04-0x07 */
+	0xE4, 0x9F, 0xE4, 0xA0, 0xE5, 0x40, 0xE5, 0x41, /* 0x08-0x0B */
+	0xE5, 0x42, 0xE5, 0x43, 0xE5, 0x44, 0xE5, 0x45, /* 0x0C-0x0F */
+	0xE5, 0x46, 0xE5, 0x47, 0xE5, 0x48, 0xE5, 0x49, /* 0x10-0x13 */
+	0xE5, 0x4A, 0xE5, 0x4B, 0xE5, 0x4C, 0xE5, 0x4D, /* 0x14-0x17 */
+	0xE5, 0x4E, 0xE5, 0x4F, 0xE5, 0x50, 0xE5, 0x51, /* 0x18-0x1B */
+	0xE5, 0x52, 0xE5, 0x53, 0xE5, 0x54, 0xE5, 0x55, /* 0x1C-0x1F */
+	0xE5, 0x56, 0xE5, 0x57, 0xE5, 0x58, 0xE5, 0x59, /* 0x20-0x23 */
+	0xE5, 0x5A, 0xE5, 0x5B, 0xE5, 0x5C, 0xE5, 0x5D, /* 0x24-0x27 */
+	0xE5, 0x5E, 0xE5, 0x5F, 0xE5, 0x60, 0xE5, 0x61, /* 0x28-0x2B */
+	0xE5, 0x62, 0xE5, 0x63, 0xE5, 0x64, 0xE5, 0x65, /* 0x2C-0x2F */
+	0xE5, 0x66, 0xE5, 0x67, 0xE5, 0x68, 0xE5, 0x69, /* 0x30-0x33 */
+	0xE5, 0x6A, 0xE5, 0x6B, 0xE5, 0x6C, 0xE5, 0x6D, /* 0x34-0x37 */
+	0xE5, 0x6E, 0xE5, 0x6F, 0xE5, 0x70, 0xE5, 0x71, /* 0x38-0x3B */
+	0xE5, 0x72, 0xE5, 0x73, 0xF6, 0xC9, 0xE5, 0x74, /* 0x3C-0x3F */
+	0xE5, 0x75, 0xE5, 0x76, 0xE5, 0x77, 0xE5, 0x78, /* 0x40-0x43 */
+	0xE5, 0x79, 0xE5, 0x7A, 0xE5, 0x7B, 0xE5, 0x7C, /* 0x44-0x47 */
+	0xE5, 0x7D, 0xE5, 0x7E, 0xE5, 0x80, 0xE5, 0x81, /* 0x48-0x4B */
+	0xE5, 0x82, 0xE5, 0x83, 0xE5, 0x84, 0xE5, 0x85, /* 0x4C-0x4F */
+	0xE5, 0x86, 0xE5, 0x87, 0xE5, 0x88, 0xE5, 0x89, /* 0x50-0x53 */
+	0xE5, 0x8A, 0xE5, 0x8B, 0xE5, 0x8C, 0xE5, 0x8D, /* 0x54-0x57 */
+	0xE5, 0x8E, 0xE5, 0x8F, 0xE5, 0x90, 0xE5, 0x91, /* 0x58-0x5B */
+	0xE5, 0x92, 0xE5, 0x93, 0xE5, 0x94, 0xE5, 0x95, /* 0x5C-0x5F */
+	0xE5, 0x96, 0xE5, 0x97, 0xE5, 0x98, 0xE5, 0x99, /* 0x60-0x63 */
+	0xE5, 0x9A, 0xE5, 0x9B, 0xE5, 0x9C, 0xE5, 0x9D, /* 0x64-0x67 */
+	0xE5, 0x9E, 0xE5, 0x9F, 0xF6, 0xCA, 0xE5, 0xA0, /* 0x68-0x6B */
+	0xE6, 0x40, 0xE6, 0x41, 0xE6, 0x42, 0xE6, 0x43, /* 0x6C-0x6F */
+	0xE6, 0x44, 0xE6, 0x45, 0xE6, 0x46, 0xE6, 0x47, /* 0x70-0x73 */
+	0xE6, 0x48, 0xE6, 0x49, 0xE6, 0x4A, 0xE6, 0x4B, /* 0x74-0x77 */
+	0xE6, 0x4C, 0xE6, 0x4D, 0xE6, 0x4E, 0xE6, 0x4F, /* 0x78-0x7B */
+	0xE6, 0x50, 0xE6, 0x51, 0xE6, 0x52, 0xE6, 0x53, /* 0x7C-0x7F */
+	
+	0xE6, 0x54, 0xE6, 0x55, 0xE6, 0x56, 0xE6, 0x57, /* 0x80-0x83 */
+	0xE6, 0x58, 0xE6, 0x59, 0xE6, 0x5A, 0xE6, 0x5B, /* 0x84-0x87 */
+	0xE6, 0x5C, 0xE6, 0x5D, 0xE6, 0x5E, 0xE6, 0x5F, /* 0x88-0x8B */
+	0xE6, 0x60, 0xE6, 0x61, 0xE6, 0x62, 0xF6, 0xCC, /* 0x8C-0x8F */
+	0xE6, 0x63, 0xE6, 0x64, 0xE6, 0x65, 0xE6, 0x66, /* 0x90-0x93 */
+	0xE6, 0x67, 0xE6, 0x68, 0xE6, 0x69, 0xE6, 0x6A, /* 0x94-0x97 */
+	0xE6, 0x6B, 0xE6, 0x6C, 0xE6, 0x6D, 0xE6, 0x6E, /* 0x98-0x9B */
+	0xE6, 0x6F, 0xE6, 0x70, 0xE6, 0x71, 0xE6, 0x72, /* 0x9C-0x9F */
+	0xE6, 0x73, 0xE6, 0x74, 0xE6, 0x75, 0xE6, 0x76, /* 0xA0-0xA3 */
+	0xE6, 0x77, 0xE6, 0x78, 0xE6, 0x79, 0xE6, 0x7A, /* 0xA4-0xA7 */
+	0xE6, 0x7B, 0xE6, 0x7C, 0xE6, 0x7D, 0xE6, 0x7E, /* 0xA8-0xAB */
+	0xE6, 0x80, 0xE6, 0x81, 0xE6, 0x82, 0xE6, 0x83, /* 0xAC-0xAF */
+	0xE6, 0x84, 0xE6, 0x85, 0xE6, 0x86, 0xE6, 0x87, /* 0xB0-0xB3 */
+	0xE6, 0x88, 0xE6, 0x89, 0xE6, 0x8A, 0xE6, 0x8B, /* 0xB4-0xB7 */
+	0xE6, 0x8C, 0xE6, 0x8D, 0xE6, 0x8E, 0xE6, 0x8F, /* 0xB8-0xBB */
+	0xE6, 0x90, 0xE6, 0x91, 0xE6, 0x92, 0xE6, 0x93, /* 0xBC-0xBF */
+	0xE6, 0x94, 0xE6, 0x95, 0xE6, 0x96, 0xE6, 0x97, /* 0xC0-0xC3 */
+	0xE6, 0x98, 0xE6, 0x99, 0xE6, 0x9A, 0xE6, 0x9B, /* 0xC4-0xC7 */
+	0xE6, 0x9C, 0xE6, 0x9D, 0xF6, 0xCB, 0xE6, 0x9E, /* 0xC8-0xCB */
+	0xE6, 0x9F, 0xE6, 0xA0, 0xE7, 0x40, 0xE7, 0x41, /* 0xCC-0xCF */
+	0xE7, 0x42, 0xE7, 0x43, 0xE7, 0x44, 0xE7, 0x45, /* 0xD0-0xD3 */
+	0xE7, 0x46, 0xE7, 0x47, 0xF7, 0xE9, 0xE7, 0x48, /* 0xD4-0xD7 */
+	0xE7, 0x49, 0xE7, 0x4A, 0xE7, 0x4B, 0xE7, 0x4C, /* 0xD8-0xDB */
+	0xE7, 0x4D, 0xE7, 0x4E, 0xE7, 0x4F, 0xE7, 0x50, /* 0xDC-0xDF */
+	0xE7, 0x51, 0xE7, 0x52, 0xE7, 0x53, 0xE7, 0x54, /* 0xE0-0xE3 */
+	0xE7, 0x55, 0xE7, 0x56, 0xE7, 0x57, 0xE7, 0x58, /* 0xE4-0xE7 */
+	0xE7, 0x59, 0xE7, 0x5A, 0xE7, 0x5B, 0xE7, 0x5C, /* 0xE8-0xEB */
+	0xE7, 0x5D, 0xE7, 0x5E, 0xE7, 0x5F, 0xE7, 0x60, /* 0xEC-0xEF */
+	0xE7, 0x61, 0xE7, 0x62, 0xE7, 0x63, 0xE7, 0x64, /* 0xF0-0xF3 */
+	0xE7, 0x65, 0xE7, 0x66, 0xE7, 0x67, 0xE7, 0x68, /* 0xF4-0xF7 */
+	0xE7, 0x69, 0xE7, 0x6A, 0xE7, 0x6B, 0xE7, 0x6C, /* 0xF8-0xFB */
+	0xE7, 0x6D, 0xE7, 0x6E, 0xE7, 0x6F, 0xE7, 0x70, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_94[512] = {
+	0xE7, 0x71, 0xE7, 0x72, 0xE7, 0x73, 0xE7, 0x74, /* 0x00-0x03 */
+	0xE7, 0x75, 0xE7, 0x76, 0xE7, 0x77, 0xE7, 0x78, /* 0x04-0x07 */
+	0xE7, 0x79, 0xE7, 0x7A, 0xE7, 0x7B, 0xE7, 0x7C, /* 0x08-0x0B */
+	0xE7, 0x7D, 0xE7, 0x7E, 0xE7, 0x80, 0xE7, 0x81, /* 0x0C-0x0F */
+	0xE7, 0x82, 0xE7, 0x83, 0xE7, 0x84, 0xE7, 0x85, /* 0x10-0x13 */
+	0xE7, 0x86, 0xE7, 0x87, 0xE7, 0x88, 0xE7, 0x89, /* 0x14-0x17 */
+	0xE7, 0x8A, 0xE7, 0x8B, 0xE7, 0x8C, 0xE7, 0x8D, /* 0x18-0x1B */
+	0xE7, 0x8E, 0xE7, 0x8F, 0xE7, 0x90, 0xE7, 0x91, /* 0x1C-0x1F */
+	0xE7, 0x92, 0xE7, 0x93, 0xE7, 0x94, 0xE7, 0x95, /* 0x20-0x23 */
+	0xE7, 0x96, 0xE7, 0x97, 0xE7, 0x98, 0xE7, 0x99, /* 0x24-0x27 */
+	0xE7, 0x9A, 0xE7, 0x9B, 0xE7, 0x9C, 0xE7, 0x9D, /* 0x28-0x2B */
+	0xE7, 0x9E, 0xE7, 0x9F, 0xE7, 0xA0, 0xE8, 0x40, /* 0x2C-0x2F */
+	0xE8, 0x41, 0xE8, 0x42, 0xE8, 0x43, 0xE8, 0x44, /* 0x30-0x33 */
+	0xE8, 0x45, 0xE8, 0x46, 0xE8, 0x47, 0xE8, 0x48, /* 0x34-0x37 */
+	0xE8, 0x49, 0xE8, 0x4A, 0xE8, 0x4B, 0xE8, 0x4C, /* 0x38-0x3B */
+	0xE8, 0x4D, 0xE8, 0x4E, 0xF6, 0xCD, 0xE8, 0x4F, /* 0x3C-0x3F */
+	0xE8, 0x50, 0xE8, 0x51, 0xE8, 0x52, 0xE8, 0x53, /* 0x40-0x43 */
+	0xE8, 0x54, 0xE8, 0x55, 0xE8, 0x56, 0xE8, 0x57, /* 0x44-0x47 */
+	0xE8, 0x58, 0xE8, 0x59, 0xE8, 0x5A, 0xE8, 0x5B, /* 0x48-0x4B */
+	0xE8, 0x5C, 0xE8, 0x5D, 0xE8, 0x5E, 0xE8, 0x5F, /* 0x4C-0x4F */
+	0xE8, 0x60, 0xE8, 0x61, 0xE8, 0x62, 0xE8, 0x63, /* 0x50-0x53 */
+	0xE8, 0x64, 0xE8, 0x65, 0xE8, 0x66, 0xE8, 0x67, /* 0x54-0x57 */
+	0xE8, 0x68, 0xE8, 0x69, 0xE8, 0x6A, 0xE8, 0x6B, /* 0x58-0x5B */
+	0xE8, 0x6C, 0xE8, 0x6D, 0xE8, 0x6E, 0xE8, 0x6F, /* 0x5C-0x5F */
+	0xE8, 0x70, 0xE8, 0x71, 0xE8, 0x72, 0xE8, 0x73, /* 0x60-0x63 */
+	0xE8, 0x74, 0xE8, 0x75, 0xE8, 0x76, 0xE8, 0x77, /* 0x64-0x67 */
+	0xE8, 0x78, 0xE8, 0x79, 0xE8, 0x7A, 0xF6, 0xCE, /* 0x68-0x6B */
+	0xE8, 0x7B, 0xE8, 0x7C, 0xE8, 0x7D, 0xE8, 0x7E, /* 0x6C-0x6F */
+	0xE8, 0x80, 0xE8, 0x81, 0xE8, 0x82, 0xE8, 0x83, /* 0x70-0x73 */
+	0xE8, 0x84, 0xE8, 0x85, 0xE8, 0x86, 0xE8, 0x87, /* 0x74-0x77 */
+	0xE8, 0x88, 0xE8, 0x89, 0xE8, 0x8A, 0xE8, 0x8B, /* 0x78-0x7B */
+	0xE8, 0x8C, 0xE8, 0x8D, 0xE8, 0x8E, 0xE8, 0x8F, /* 0x7C-0x7F */
+	
+	0xE8, 0x90, 0xE8, 0x91, 0xE8, 0x92, 0xE8, 0x93, /* 0x80-0x83 */
+	0xE8, 0x94, 0xEE, 0xC4, 0xEE, 0xC5, 0xEE, 0xC6, /* 0x84-0x87 */
+	0xD5, 0xEB, 0xB6, 0xA4, 0xEE, 0xC8, 0xEE, 0xC7, /* 0x88-0x8B */
+	0xEE, 0xC9, 0xEE, 0xCA, 0xC7, 0xA5, 0xEE, 0xCB, /* 0x8C-0x8F */
+	0xEE, 0xCC, 0xE8, 0x95, 0xB7, 0xB0, 0xB5, 0xF6, /* 0x90-0x93 */
+	0xEE, 0xCD, 0xEE, 0xCF, 0xE8, 0x96, 0xEE, 0xCE, /* 0x94-0x97 */
+	0xE8, 0x97, 0xB8, 0xC6, 0xEE, 0xD0, 0xEE, 0xD1, /* 0x98-0x9B */
+	0xEE, 0xD2, 0xB6, 0xDB, 0xB3, 0xAE, 0xD6, 0xD3, /* 0x9C-0x9F */
+	0xC4, 0xC6, 0xB1, 0xB5, 0xB8, 0xD6, 0xEE, 0xD3, /* 0xA0-0xA3 */
+	0xEE, 0xD4, 0xD4, 0xBF, 0xC7, 0xD5, 0xBE, 0xFB, /* 0xA4-0xA7 */
+	0xCE, 0xD9, 0xB9, 0xB3, 0xEE, 0xD6, 0xEE, 0xD5, /* 0xA8-0xAB */
+	0xEE, 0xD8, 0xEE, 0xD7, 0xC5, 0xA5, 0xEE, 0xD9, /* 0xAC-0xAF */
+	0xEE, 0xDA, 0xC7, 0xAE, 0xEE, 0xDB, 0xC7, 0xAF, /* 0xB0-0xB3 */
+	0xEE, 0xDC, 0xB2, 0xA7, 0xEE, 0xDD, 0xEE, 0xDE, /* 0xB4-0xB7 */
+	0xEE, 0xDF, 0xEE, 0xE0, 0xEE, 0xE1, 0xD7, 0xEA, /* 0xB8-0xBB */
+	0xEE, 0xE2, 0xEE, 0xE3, 0xBC, 0xD8, 0xEE, 0xE4, /* 0xBC-0xBF */
+	0xD3, 0xCB, 0xCC, 0xFA, 0xB2, 0xAC, 0xC1, 0xE5, /* 0xC0-0xC3 */
+	0xEE, 0xE5, 0xC7, 0xA6, 0xC3, 0xAD, 0xE8, 0x98, /* 0xC4-0xC7 */
+	0xEE, 0xE6, 0xEE, 0xE7, 0xEE, 0xE8, 0xEE, 0xE9, /* 0xC8-0xCB */
+	0xEE, 0xEA, 0xEE, 0xEB, 0xEE, 0xEC, 0xE8, 0x99, /* 0xCC-0xCF */
+	0xEE, 0xED, 0xEE, 0xEE, 0xEE, 0xEF, 0xE8, 0x9A, /* 0xD0-0xD3 */
+	0xE8, 0x9B, 0xEE, 0xF0, 0xEE, 0xF1, 0xEE, 0xF2, /* 0xD4-0xD7 */
+	0xEE, 0xF4, 0xEE, 0xF3, 0xE8, 0x9C, 0xEE, 0xF5, /* 0xD8-0xDB */
+	0xCD, 0xAD, 0xC2, 0xC1, 0xEE, 0xF6, 0xEE, 0xF7, /* 0xDC-0xDF */
+	0xEE, 0xF8, 0xD5, 0xA1, 0xEE, 0xF9, 0xCF, 0xB3, /* 0xE0-0xE3 */
+	0xEE, 0xFA, 0xEE, 0xFB, 0xE8, 0x9D, 0xEE, 0xFC, /* 0xE4-0xE7 */
+	0xEE, 0xFD, 0xEF, 0xA1, 0xEE, 0xFE, 0xEF, 0xA2, /* 0xE8-0xEB */
+	0xB8, 0xF5, 0xC3, 0xFA, 0xEF, 0xA3, 0xEF, 0xA4, /* 0xEC-0xEF */
+	0xBD, 0xC2, 0xD2, 0xBF, 0xB2, 0xF9, 0xEF, 0xA5, /* 0xF0-0xF3 */
+	0xEF, 0xA6, 0xEF, 0xA7, 0xD2, 0xF8, 0xEF, 0xA8, /* 0xF4-0xF7 */
+	0xD6, 0xFD, 0xEF, 0xA9, 0xC6, 0xCC, 0xE8, 0x9E, /* 0xF8-0xFB */
+	0xEF, 0xAA, 0xEF, 0xAB, 0xC1, 0xB4, 0xEF, 0xAC, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_95[512] = {
+	0xCF, 0xFA, 0xCB, 0xF8, 0xEF, 0xAE, 0xEF, 0xAD, /* 0x00-0x03 */
+	0xB3, 0xFA, 0xB9, 0xF8, 0xEF, 0xAF, 0xEF, 0xB0, /* 0x04-0x07 */
+	0xD0, 0xE2, 0xEF, 0xB1, 0xEF, 0xB2, 0xB7, 0xE6, /* 0x08-0x0B */
+	0xD0, 0xBF, 0xEF, 0xB3, 0xEF, 0xB4, 0xEF, 0xB5, /* 0x0C-0x0F */
+	0xC8, 0xF1, 0xCC, 0xE0, 0xEF, 0xB6, 0xEF, 0xB7, /* 0x10-0x13 */
+	0xEF, 0xB8, 0xEF, 0xB9, 0xEF, 0xBA, 0xD5, 0xE0, /* 0x14-0x17 */
+	0xEF, 0xBB, 0xB4, 0xED, 0xC3, 0xAA, 0xEF, 0xBC, /* 0x18-0x1B */
+	0xE8, 0x9F, 0xEF, 0xBD, 0xEF, 0xBE, 0xEF, 0xBF, /* 0x1C-0x1F */
+	0xE8, 0xA0, 0xCE, 0xFD, 0xEF, 0xC0, 0xC2, 0xE0, /* 0x20-0x23 */
+	0xB4, 0xB8, 0xD7, 0xB6, 0xBD, 0xF5, 0xE9, 0x40, /* 0x24-0x27 */
+	0xCF, 0xC7, 0xEF, 0xC3, 0xEF, 0xC1, 0xEF, 0xC2, /* 0x28-0x2B */
+	0xEF, 0xC4, 0xB6, 0xA7, 0xBC, 0xFC, 0xBE, 0xE2, /* 0x2C-0x2F */
+	0xC3, 0xCC, 0xEF, 0xC5, 0xEF, 0xC6, 0xE9, 0x41, /* 0x30-0x33 */
+	0xEF, 0xC7, 0xEF, 0xCF, 0xEF, 0xC8, 0xEF, 0xC9, /* 0x34-0x37 */
+	0xEF, 0xCA, 0xC7, 0xC2, 0xEF, 0xF1, 0xB6, 0xCD, /* 0x38-0x3B */
+	0xEF, 0xCB, 0xE9, 0x42, 0xEF, 0xCC, 0xEF, 0xCD, /* 0x3C-0x3F */
+	0xB6, 0xC6, 0xC3, 0xBE, 0xEF, 0xCE, 0xE9, 0x43, /* 0x40-0x43 */
+	0xEF, 0xD0, 0xEF, 0xD1, 0xEF, 0xD2, 0xD5, 0xF2, /* 0x44-0x47 */
+	0xE9, 0x44, 0xEF, 0xD3, 0xC4, 0xF7, 0xE9, 0x45, /* 0x48-0x4B */
+	0xEF, 0xD4, 0xC4, 0xF8, 0xEF, 0xD5, 0xEF, 0xD6, /* 0x4C-0x4F */
+	0xB8, 0xE4, 0xB0, 0xF7, 0xEF, 0xD7, 0xEF, 0xD8, /* 0x50-0x53 */
+	0xEF, 0xD9, 0xE9, 0x46, 0xEF, 0xDA, 0xEF, 0xDB, /* 0x54-0x57 */
+	0xEF, 0xDC, 0xEF, 0xDD, 0xE9, 0x47, 0xEF, 0xDE, /* 0x58-0x5B */
+	0xBE, 0xB5, 0xEF, 0xE1, 0xEF, 0xDF, 0xEF, 0xE0, /* 0x5C-0x5F */
+	0xE9, 0x48, 0xEF, 0xE2, 0xEF, 0xE3, 0xC1, 0xCD, /* 0x60-0x63 */
+	0xEF, 0xE4, 0xEF, 0xE5, 0xEF, 0xE6, 0xEF, 0xE7, /* 0x64-0x67 */
+	0xEF, 0xE8, 0xEF, 0xE9, 0xEF, 0xEA, 0xEF, 0xEB, /* 0x68-0x6B */
+	0xEF, 0xEC, 0xC0, 0xD8, 0xE9, 0x49, 0xEF, 0xED, /* 0x6C-0x6F */
+	0xC1, 0xAD, 0xEF, 0xEE, 0xEF, 0xEF, 0xEF, 0xF0, /* 0x70-0x73 */
+	0xE9, 0x4A, 0xE9, 0x4B, 0xCF, 0xE2, 0xE9, 0x4C, /* 0x74-0x77 */
+	0xE9, 0x4D, 0xE9, 0x4E, 0xE9, 0x4F, 0xE9, 0x50, /* 0x78-0x7B */
+	0xE9, 0x51, 0xE9, 0x52, 0xE9, 0x53, 0xB3, 0xA4, /* 0x7C-0x7F */
+	
+	0xE9, 0x54, 0xE9, 0x55, 0xE9, 0x56, 0xE9, 0x57, /* 0x80-0x83 */
+	0xE9, 0x58, 0xE9, 0x59, 0xE9, 0x5A, 0xE9, 0x5B, /* 0x84-0x87 */
+	0xE9, 0x5C, 0xE9, 0x5D, 0xE9, 0x5E, 0xE9, 0x5F, /* 0x88-0x8B */
+	0xE9, 0x60, 0xE9, 0x61, 0xE9, 0x62, 0xE9, 0x63, /* 0x8C-0x8F */
+	0xE9, 0x64, 0xE9, 0x65, 0xE9, 0x66, 0xE9, 0x67, /* 0x90-0x93 */
+	0xE9, 0x68, 0xE9, 0x69, 0xE9, 0x6A, 0xE9, 0x6B, /* 0x94-0x97 */
+	0xE9, 0x6C, 0xE9, 0x6D, 0xE9, 0x6E, 0xE9, 0x6F, /* 0x98-0x9B */
+	0xE9, 0x70, 0xE9, 0x71, 0xE9, 0x72, 0xE9, 0x73, /* 0x9C-0x9F */
+	0xE9, 0x74, 0xE9, 0x75, 0xE9, 0x76, 0xE9, 0x77, /* 0xA0-0xA3 */
+	0xE9, 0x78, 0xE9, 0x79, 0xE9, 0x7A, 0xE9, 0x7B, /* 0xA4-0xA7 */
+	0xE9, 0x7C, 0xE9, 0x7D, 0xE9, 0x7E, 0xE9, 0x80, /* 0xA8-0xAB */
+	0xE9, 0x81, 0xE9, 0x82, 0xE9, 0x83, 0xE9, 0x84, /* 0xAC-0xAF */
+	0xE9, 0x85, 0xE9, 0x86, 0xE9, 0x87, 0xE9, 0x88, /* 0xB0-0xB3 */
+	0xE9, 0x89, 0xE9, 0x8A, 0xE9, 0x8B, 0xE9, 0x8C, /* 0xB4-0xB7 */
+	0xE9, 0x8D, 0xE9, 0x8E, 0xE9, 0x8F, 0xE9, 0x90, /* 0xB8-0xBB */
+	0xE9, 0x91, 0xE9, 0x92, 0xE9, 0x93, 0xE9, 0x94, /* 0xBC-0xBF */
+	0xE9, 0x95, 0xE9, 0x96, 0xE9, 0x97, 0xE9, 0x98, /* 0xC0-0xC3 */
+	0xE9, 0x99, 0xE9, 0x9A, 0xE9, 0x9B, 0xE9, 0x9C, /* 0xC4-0xC7 */
+	0xE9, 0x9D, 0xE9, 0x9E, 0xE9, 0x9F, 0xE9, 0xA0, /* 0xC8-0xCB */
+	0xEA, 0x40, 0xEA, 0x41, 0xEA, 0x42, 0xEA, 0x43, /* 0xCC-0xCF */
+	0xEA, 0x44, 0xEA, 0x45, 0xEA, 0x46, 0xEA, 0x47, /* 0xD0-0xD3 */
+	0xEA, 0x48, 0xEA, 0x49, 0xEA, 0x4A, 0xEA, 0x4B, /* 0xD4-0xD7 */
+	0xEA, 0x4C, 0xEA, 0x4D, 0xEA, 0x4E, 0xEA, 0x4F, /* 0xD8-0xDB */
+	0xEA, 0x50, 0xEA, 0x51, 0xEA, 0x52, 0xEA, 0x53, /* 0xDC-0xDF */
+	0xEA, 0x54, 0xEA, 0x55, 0xEA, 0x56, 0xEA, 0x57, /* 0xE0-0xE3 */
+	0xEA, 0x58, 0xEA, 0x59, 0xEA, 0x5A, 0xEA, 0x5B, /* 0xE4-0xE7 */
+	0xC3, 0xC5, 0xE3, 0xC5, 0xC9, 0xC1, 0xE3, 0xC6, /* 0xE8-0xEB */
+	0xEA, 0x5C, 0xB1, 0xD5, 0xCE, 0xCA, 0xB4, 0xB3, /* 0xEC-0xEF */
+	0xC8, 0xF2, 0xE3, 0xC7, 0xCF, 0xD0, 0xE3, 0xC8, /* 0xF0-0xF3 */
+	0xBC, 0xE4, 0xE3, 0xC9, 0xE3, 0xCA, 0xC3, 0xC6, /* 0xF4-0xF7 */
+	0xD5, 0xA2, 0xC4, 0xD6, 0xB9, 0xEB, 0xCE, 0xC5, /* 0xF8-0xFB */
+	0xE3, 0xCB, 0xC3, 0xF6, 0xE3, 0xCC, 0xEA, 0x5D, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_96[512] = {
+	0xB7, 0xA7, 0xB8, 0xF3, 0xBA, 0xD2, 0xE3, 0xCD, /* 0x00-0x03 */
+	0xE3, 0xCE, 0xD4, 0xC4, 0xE3, 0xCF, 0xEA, 0x5E, /* 0x04-0x07 */
+	0xE3, 0xD0, 0xD1, 0xCB, 0xE3, 0xD1, 0xE3, 0xD2, /* 0x08-0x0B */
+	0xE3, 0xD3, 0xE3, 0xD4, 0xD1, 0xD6, 0xE3, 0xD5, /* 0x0C-0x0F */
+	0xB2, 0xFB, 0xC0, 0xBB, 0xE3, 0xD6, 0xEA, 0x5F, /* 0x10-0x13 */
+	0xC0, 0xAB, 0xE3, 0xD7, 0xE3, 0xD8, 0xE3, 0xD9, /* 0x14-0x17 */
+	0xEA, 0x60, 0xE3, 0xDA, 0xE3, 0xDB, 0xEA, 0x61, /* 0x18-0x1B */
+	0xB8, 0xB7, 0xDA, 0xE2, 0xEA, 0x62, 0xB6, 0xD3, /* 0x1C-0x1F */
+	0xEA, 0x63, 0xDA, 0xE4, 0xDA, 0xE3, 0xEA, 0x64, /* 0x20-0x23 */
+	0xEA, 0x65, 0xEA, 0x66, 0xEA, 0x67, 0xEA, 0x68, /* 0x24-0x27 */
+	0xEA, 0x69, 0xEA, 0x6A, 0xDA, 0xE6, 0xEA, 0x6B, /* 0x28-0x2B */
+	0xEA, 0x6C, 0xEA, 0x6D, 0xC8, 0xEE, 0xEA, 0x6E, /* 0x2C-0x2F */
+	0xEA, 0x6F, 0xDA, 0xE5, 0xB7, 0xC0, 0xD1, 0xF4, /* 0x30-0x33 */
+	0xD2, 0xF5, 0xD5, 0xF3, 0xBD, 0xD7, 0xEA, 0x70, /* 0x34-0x37 */
+	0xEA, 0x71, 0xEA, 0x72, 0xEA, 0x73, 0xD7, 0xE8, /* 0x38-0x3B */
+	0xDA, 0xE8, 0xDA, 0xE7, 0xEA, 0x74, 0xB0, 0xA2, /* 0x3C-0x3F */
+	0xCD, 0xD3, 0xEA, 0x75, 0xDA, 0xE9, 0xEA, 0x76, /* 0x40-0x43 */
+	0xB8, 0xBD, 0xBC, 0xCA, 0xC2, 0xBD, 0xC2, 0xA4, /* 0x44-0x47 */
+	0xB3, 0xC2, 0xDA, 0xEA, 0xEA, 0x77, 0xC2, 0xAA, /* 0x48-0x4B */
+	0xC4, 0xB0, 0xBD, 0xB5, 0xEA, 0x78, 0xEA, 0x79, /* 0x4C-0x4F */
+	0xCF, 0xDE, 0xEA, 0x7A, 0xEA, 0x7B, 0xEA, 0x7C, /* 0x50-0x53 */
+	0xDA, 0xEB, 0xC9, 0xC2, 0xEA, 0x7D, 0xEA, 0x7E, /* 0x54-0x57 */
+	0xEA, 0x80, 0xEA, 0x81, 0xEA, 0x82, 0xB1, 0xDD, /* 0x58-0x5B */
+	0xEA, 0x83, 0xEA, 0x84, 0xEA, 0x85, 0xDA, 0xEC, /* 0x5C-0x5F */
+	0xEA, 0x86, 0xB6, 0xB8, 0xD4, 0xBA, 0xEA, 0x87, /* 0x60-0x63 */
+	0xB3, 0xFD, 0xEA, 0x88, 0xEA, 0x89, 0xDA, 0xED, /* 0x64-0x67 */
+	0xD4, 0xC9, 0xCF, 0xD5, 0xC5, 0xE3, 0xEA, 0x8A, /* 0x68-0x6B */
+	0xDA, 0xEE, 0xEA, 0x8B, 0xEA, 0x8C, 0xEA, 0x8D, /* 0x6C-0x6F */
+	0xEA, 0x8E, 0xEA, 0x8F, 0xDA, 0xEF, 0xEA, 0x90, /* 0x70-0x73 */
+	0xDA, 0xF0, 0xC1, 0xEA, 0xCC, 0xD5, 0xCF, 0xDD, /* 0x74-0x77 */
+	0xEA, 0x91, 0xEA, 0x92, 0xEA, 0x93, 0xEA, 0x94, /* 0x78-0x7B */
+	0xEA, 0x95, 0xEA, 0x96, 0xEA, 0x97, 0xEA, 0x98, /* 0x7C-0x7F */
+	
+	0xEA, 0x99, 0xEA, 0x9A, 0xEA, 0x9B, 0xEA, 0x9C, /* 0x80-0x83 */
+	0xEA, 0x9D, 0xD3, 0xE7, 0xC2, 0xA1, 0xEA, 0x9E, /* 0x84-0x87 */
+	0xDA, 0xF1, 0xEA, 0x9F, 0xEA, 0xA0, 0xCB, 0xE5, /* 0x88-0x8B */
+	0xEB, 0x40, 0xDA, 0xF2, 0xEB, 0x41, 0xCB, 0xE6, /* 0x8C-0x8F */
+	0xD2, 0xFE, 0xEB, 0x42, 0xEB, 0x43, 0xEB, 0x44, /* 0x90-0x93 */
+	0xB8, 0xF4, 0xEB, 0x45, 0xEB, 0x46, 0xDA, 0xF3, /* 0x94-0x97 */
+	0xB0, 0xAF, 0xCF, 0xB6, 0xEB, 0x47, 0xEB, 0x48, /* 0x98-0x9B */
+	0xD5, 0xCF, 0xEB, 0x49, 0xEB, 0x4A, 0xEB, 0x4B, /* 0x9C-0x9F */
+	0xEB, 0x4C, 0xEB, 0x4D, 0xEB, 0x4E, 0xEB, 0x4F, /* 0xA0-0xA3 */
+	0xEB, 0x50, 0xEB, 0x51, 0xEB, 0x52, 0xCB, 0xED, /* 0xA4-0xA7 */
+	0xEB, 0x53, 0xEB, 0x54, 0xEB, 0x55, 0xEB, 0x56, /* 0xA8-0xAB */
+	0xEB, 0x57, 0xEB, 0x58, 0xEB, 0x59, 0xEB, 0x5A, /* 0xAC-0xAF */
+	0xDA, 0xF4, 0xEB, 0x5B, 0xEB, 0x5C, 0xE3, 0xC4, /* 0xB0-0xB3 */
+	0xEB, 0x5D, 0xEB, 0x5E, 0xC1, 0xA5, 0xEB, 0x5F, /* 0xB4-0xB7 */
+	0xEB, 0x60, 0xF6, 0xBF, 0xEB, 0x61, 0xEB, 0x62, /* 0xB8-0xBB */
+	0xF6, 0xC0, 0xF6, 0xC1, 0xC4, 0xD1, 0xEB, 0x63, /* 0xBC-0xBF */
+	0xC8, 0xB8, 0xD1, 0xE3, 0xEB, 0x64, 0xEB, 0x65, /* 0xC0-0xC3 */
+	0xD0, 0xDB, 0xD1, 0xC5, 0xBC, 0xAF, 0xB9, 0xCD, /* 0xC4-0xC7 */
+	0xEB, 0x66, 0xEF, 0xF4, 0xEB, 0x67, 0xEB, 0x68, /* 0xC8-0xCB */
+	0xB4, 0xC6, 0xD3, 0xBA, 0xF6, 0xC2, 0xB3, 0xFB, /* 0xCC-0xCF */
+	0xEB, 0x69, 0xEB, 0x6A, 0xF6, 0xC3, 0xEB, 0x6B, /* 0xD0-0xD3 */
+	0xEB, 0x6C, 0xB5, 0xF1, 0xEB, 0x6D, 0xEB, 0x6E, /* 0xD4-0xD7 */
+	0xEB, 0x6F, 0xEB, 0x70, 0xEB, 0x71, 0xEB, 0x72, /* 0xD8-0xDB */
+	0xEB, 0x73, 0xEB, 0x74, 0xEB, 0x75, 0xEB, 0x76, /* 0xDC-0xDF */
+	0xF6, 0xC5, 0xEB, 0x77, 0xEB, 0x78, 0xEB, 0x79, /* 0xE0-0xE3 */
+	0xEB, 0x7A, 0xEB, 0x7B, 0xEB, 0x7C, 0xEB, 0x7D, /* 0xE4-0xE7 */
+	0xD3, 0xEA, 0xF6, 0xA7, 0xD1, 0xA9, 0xEB, 0x7E, /* 0xE8-0xEB */
+	0xEB, 0x80, 0xEB, 0x81, 0xEB, 0x82, 0xF6, 0xA9, /* 0xEC-0xEF */
+	0xEB, 0x83, 0xEB, 0x84, 0xEB, 0x85, 0xF6, 0xA8, /* 0xF0-0xF3 */
+	0xEB, 0x86, 0xEB, 0x87, 0xC1, 0xE3, 0xC0, 0xD7, /* 0xF4-0xF7 */
+	0xEB, 0x88, 0xB1, 0xA2, 0xEB, 0x89, 0xEB, 0x8A, /* 0xF8-0xFB */
+	0xEB, 0x8B, 0xEB, 0x8C, 0xCE, 0xED, 0xEB, 0x8D, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_97[512] = {
+	0xD0, 0xE8, 0xF6, 0xAB, 0xEB, 0x8E, 0xEB, 0x8F, /* 0x00-0x03 */
+	0xCF, 0xF6, 0xEB, 0x90, 0xF6, 0xAA, 0xD5, 0xF0, /* 0x04-0x07 */
+	0xF6, 0xAC, 0xC3, 0xB9, 0xEB, 0x91, 0xEB, 0x92, /* 0x08-0x0B */
+	0xEB, 0x93, 0xBB, 0xF4, 0xF6, 0xAE, 0xF6, 0xAD, /* 0x0C-0x0F */
+	0xEB, 0x94, 0xEB, 0x95, 0xEB, 0x96, 0xC4, 0xDE, /* 0x10-0x13 */
+	0xEB, 0x97, 0xEB, 0x98, 0xC1, 0xD8, 0xEB, 0x99, /* 0x14-0x17 */
+	0xEB, 0x9A, 0xEB, 0x9B, 0xEB, 0x9C, 0xEB, 0x9D, /* 0x18-0x1B */
+	0xCB, 0xAA, 0xEB, 0x9E, 0xCF, 0xBC, 0xEB, 0x9F, /* 0x1C-0x1F */
+	0xEB, 0xA0, 0xEC, 0x40, 0xEC, 0x41, 0xEC, 0x42, /* 0x20-0x23 */
+	0xEC, 0x43, 0xEC, 0x44, 0xEC, 0x45, 0xEC, 0x46, /* 0x24-0x27 */
+	0xEC, 0x47, 0xEC, 0x48, 0xF6, 0xAF, 0xEC, 0x49, /* 0x28-0x2B */
+	0xEC, 0x4A, 0xF6, 0xB0, 0xEC, 0x4B, 0xEC, 0x4C, /* 0x2C-0x2F */
+	0xF6, 0xB1, 0xEC, 0x4D, 0xC2, 0xB6, 0xEC, 0x4E, /* 0x30-0x33 */
+	0xEC, 0x4F, 0xEC, 0x50, 0xEC, 0x51, 0xEC, 0x52, /* 0x34-0x37 */
+	0xB0, 0xD4, 0xC5, 0xF9, 0xEC, 0x53, 0xEC, 0x54, /* 0x38-0x3B */
+	0xEC, 0x55, 0xEC, 0x56, 0xF6, 0xB2, 0xEC, 0x57, /* 0x3C-0x3F */
+	0xEC, 0x58, 0xEC, 0x59, 0xEC, 0x5A, 0xEC, 0x5B, /* 0x40-0x43 */
+	0xEC, 0x5C, 0xEC, 0x5D, 0xEC, 0x5E, 0xEC, 0x5F, /* 0x44-0x47 */
+	0xEC, 0x60, 0xEC, 0x61, 0xEC, 0x62, 0xEC, 0x63, /* 0x48-0x4B */
+	0xEC, 0x64, 0xEC, 0x65, 0xEC, 0x66, 0xEC, 0x67, /* 0x4C-0x4F */
+	0xEC, 0x68, 0xEC, 0x69, 0xC7, 0xE0, 0xF6, 0xA6, /* 0x50-0x53 */
+	0xEC, 0x6A, 0xEC, 0x6B, 0xBE, 0xB8, 0xEC, 0x6C, /* 0x54-0x57 */
+	0xEC, 0x6D, 0xBE, 0xB2, 0xEC, 0x6E, 0xB5, 0xE5, /* 0x58-0x5B */
+	0xEC, 0x6F, 0xEC, 0x70, 0xB7, 0xC7, 0xEC, 0x71, /* 0x5C-0x5F */
+	0xBF, 0xBF, 0xC3, 0xD2, 0xC3, 0xE6, 0xEC, 0x72, /* 0x60-0x63 */
+	0xEC, 0x73, 0xD8, 0xCC, 0xEC, 0x74, 0xEC, 0x75, /* 0x64-0x67 */
+	0xEC, 0x76, 0xB8, 0xEF, 0xEC, 0x77, 0xEC, 0x78, /* 0x68-0x6B */
+	0xEC, 0x79, 0xEC, 0x7A, 0xEC, 0x7B, 0xEC, 0x7C, /* 0x6C-0x6F */
+	0xEC, 0x7D, 0xEC, 0x7E, 0xEC, 0x80, 0xBD, 0xF9, /* 0x70-0x73 */
+	0xD1, 0xA5, 0xEC, 0x81, 0xB0, 0xD0, 0xEC, 0x82, /* 0x74-0x77 */
+	0xEC, 0x83, 0xEC, 0x84, 0xEC, 0x85, 0xEC, 0x86, /* 0x78-0x7B */
+	0xF7, 0xB0, 0xEC, 0x87, 0xEC, 0x88, 0xEC, 0x89, /* 0x7C-0x7F */
+	
+	0xEC, 0x8A, 0xEC, 0x8B, 0xEC, 0x8C, 0xEC, 0x8D, /* 0x80-0x83 */
+	0xEC, 0x8E, 0xF7, 0xB1, 0xEC, 0x8F, 0xEC, 0x90, /* 0x84-0x87 */
+	0xEC, 0x91, 0xEC, 0x92, 0xEC, 0x93, 0xD0, 0xAC, /* 0x88-0x8B */
+	0xEC, 0x94, 0xB0, 0xB0, 0xEC, 0x95, 0xEC, 0x96, /* 0x8C-0x8F */
+	0xEC, 0x97, 0xF7, 0xB2, 0xF7, 0xB3, 0xEC, 0x98, /* 0x90-0x93 */
+	0xF7, 0xB4, 0xEC, 0x99, 0xEC, 0x9A, 0xEC, 0x9B, /* 0x94-0x97 */
+	0xC7, 0xCA, 0xEC, 0x9C, 0xEC, 0x9D, 0xEC, 0x9E, /* 0x98-0x9B */
+	0xEC, 0x9F, 0xEC, 0xA0, 0xED, 0x40, 0xED, 0x41, /* 0x9C-0x9F */
+	0xBE, 0xCF, 0xED, 0x42, 0xED, 0x43, 0xF7, 0xB7, /* 0xA0-0xA3 */
+	0xED, 0x44, 0xED, 0x45, 0xED, 0x46, 0xED, 0x47, /* 0xA4-0xA7 */
+	0xED, 0x48, 0xED, 0x49, 0xED, 0x4A, 0xF7, 0xB6, /* 0xA8-0xAB */
+	0xED, 0x4B, 0xB1, 0xDE, 0xED, 0x4C, 0xF7, 0xB5, /* 0xAC-0xAF */
+	0xED, 0x4D, 0xED, 0x4E, 0xF7, 0xB8, 0xED, 0x4F, /* 0xB0-0xB3 */
+	0xF7, 0xB9, 0xED, 0x50, 0xED, 0x51, 0xED, 0x52, /* 0xB4-0xB7 */
+	0xED, 0x53, 0xED, 0x54, 0xED, 0x55, 0xED, 0x56, /* 0xB8-0xBB */
+	0xED, 0x57, 0xED, 0x58, 0xED, 0x59, 0xED, 0x5A, /* 0xBC-0xBF */
+	0xED, 0x5B, 0xED, 0x5C, 0xED, 0x5D, 0xED, 0x5E, /* 0xC0-0xC3 */
+	0xED, 0x5F, 0xED, 0x60, 0xED, 0x61, 0xED, 0x62, /* 0xC4-0xC7 */
+	0xED, 0x63, 0xED, 0x64, 0xED, 0x65, 0xED, 0x66, /* 0xC8-0xCB */
+	0xED, 0x67, 0xED, 0x68, 0xED, 0x69, 0xED, 0x6A, /* 0xCC-0xCF */
+	0xED, 0x6B, 0xED, 0x6C, 0xED, 0x6D, 0xED, 0x6E, /* 0xD0-0xD3 */
+	0xED, 0x6F, 0xED, 0x70, 0xED, 0x71, 0xED, 0x72, /* 0xD4-0xD7 */
+	0xED, 0x73, 0xED, 0x74, 0xED, 0x75, 0xED, 0x76, /* 0xD8-0xDB */
+	0xED, 0x77, 0xED, 0x78, 0xED, 0x79, 0xED, 0x7A, /* 0xDC-0xDF */
+	0xED, 0x7B, 0xED, 0x7C, 0xED, 0x7D, 0xED, 0x7E, /* 0xE0-0xE3 */
+	0xED, 0x80, 0xED, 0x81, 0xCE, 0xA4, 0xC8, 0xCD, /* 0xE4-0xE7 */
+	0xED, 0x82, 0xBA, 0xAB, 0xE8, 0xB8, 0xE8, 0xB9, /* 0xE8-0xEB */
+	0xE8, 0xBA, 0xBE, 0xC2, 0xED, 0x83, 0xED, 0x84, /* 0xEC-0xEF */
+	0xED, 0x85, 0xED, 0x86, 0xED, 0x87, 0xD2, 0xF4, /* 0xF0-0xF3 */
+	0xED, 0x88, 0xD4, 0xCF, 0xC9, 0xD8, 0xED, 0x89, /* 0xF4-0xF7 */
+	0xED, 0x8A, 0xED, 0x8B, 0xED, 0x8C, 0xED, 0x8D, /* 0xF8-0xFB */
+	0xED, 0x8E, 0xED, 0x8F, 0xED, 0x90, 0xED, 0x91, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_98[512] = {
+	0xED, 0x92, 0xED, 0x93, 0xED, 0x94, 0xED, 0x95, /* 0x00-0x03 */
+	0xED, 0x96, 0xED, 0x97, 0xED, 0x98, 0xED, 0x99, /* 0x04-0x07 */
+	0xED, 0x9A, 0xED, 0x9B, 0xED, 0x9C, 0xED, 0x9D, /* 0x08-0x0B */
+	0xED, 0x9E, 0xED, 0x9F, 0xED, 0xA0, 0xEE, 0x40, /* 0x0C-0x0F */
+	0xEE, 0x41, 0xEE, 0x42, 0xEE, 0x43, 0xEE, 0x44, /* 0x10-0x13 */
+	0xEE, 0x45, 0xEE, 0x46, 0xEE, 0x47, 0xEE, 0x48, /* 0x14-0x17 */
+	0xEE, 0x49, 0xEE, 0x4A, 0xEE, 0x4B, 0xEE, 0x4C, /* 0x18-0x1B */
+	0xEE, 0x4D, 0xEE, 0x4E, 0xEE, 0x4F, 0xEE, 0x50, /* 0x1C-0x1F */
+	0xEE, 0x51, 0xEE, 0x52, 0xEE, 0x53, 0xEE, 0x54, /* 0x20-0x23 */
+	0xEE, 0x55, 0xEE, 0x56, 0xEE, 0x57, 0xEE, 0x58, /* 0x24-0x27 */
+	0xEE, 0x59, 0xEE, 0x5A, 0xEE, 0x5B, 0xEE, 0x5C, /* 0x28-0x2B */
+	0xEE, 0x5D, 0xEE, 0x5E, 0xEE, 0x5F, 0xEE, 0x60, /* 0x2C-0x2F */
+	0xEE, 0x61, 0xEE, 0x62, 0xEE, 0x63, 0xEE, 0x64, /* 0x30-0x33 */
+	0xEE, 0x65, 0xEE, 0x66, 0xEE, 0x67, 0xEE, 0x68, /* 0x34-0x37 */
+	0xEE, 0x69, 0xEE, 0x6A, 0xEE, 0x6B, 0xEE, 0x6C, /* 0x38-0x3B */
+	0xEE, 0x6D, 0xEE, 0x6E, 0xEE, 0x6F, 0xEE, 0x70, /* 0x3C-0x3F */
+	0xEE, 0x71, 0xEE, 0x72, 0xEE, 0x73, 0xEE, 0x74, /* 0x40-0x43 */
+	0xEE, 0x75, 0xEE, 0x76, 0xEE, 0x77, 0xEE, 0x78, /* 0x44-0x47 */
+	0xEE, 0x79, 0xEE, 0x7A, 0xEE, 0x7B, 0xEE, 0x7C, /* 0x48-0x4B */
+	0xEE, 0x7D, 0xEE, 0x7E, 0xEE, 0x80, 0xEE, 0x81, /* 0x4C-0x4F */
+	0xEE, 0x82, 0xEE, 0x83, 0xEE, 0x84, 0xEE, 0x85, /* 0x50-0x53 */
+	0xEE, 0x86, 0xEE, 0x87, 0xEE, 0x88, 0xEE, 0x89, /* 0x54-0x57 */
+	0xEE, 0x8A, 0xEE, 0x8B, 0xEE, 0x8C, 0xEE, 0x8D, /* 0x58-0x5B */
+	0xEE, 0x8E, 0xEE, 0x8F, 0xEE, 0x90, 0xEE, 0x91, /* 0x5C-0x5F */
+	0xEE, 0x92, 0xEE, 0x93, 0xEE, 0x94, 0xEE, 0x95, /* 0x60-0x63 */
+	0xEE, 0x96, 0xEE, 0x97, 0xEE, 0x98, 0xEE, 0x99, /* 0x64-0x67 */
+	0xEE, 0x9A, 0xEE, 0x9B, 0xEE, 0x9C, 0xEE, 0x9D, /* 0x68-0x6B */
+	0xEE, 0x9E, 0xEE, 0x9F, 0xEE, 0xA0, 0xEF, 0x40, /* 0x6C-0x6F */
+	0xEF, 0x41, 0xEF, 0x42, 0xEF, 0x43, 0xEF, 0x44, /* 0x70-0x73 */
+	0xEF, 0x45, 0xD2, 0xB3, 0xB6, 0xA5, 0xC7, 0xEA, /* 0x74-0x77 */
+	0xF1, 0xFC, 0xCF, 0xEE, 0xCB, 0xB3, 0xD0, 0xEB, /* 0x78-0x7B */
+	0xE7, 0xEF, 0xCD, 0xE7, 0xB9, 0xCB, 0xB6, 0xD9, /* 0x7C-0x7F */
+	
+	0xF1, 0xFD, 0xB0, 0xE4, 0xCB, 0xCC, 0xF1, 0xFE, /* 0x80-0x83 */
+	0xD4, 0xA4, 0xC2, 0xAD, 0xC1, 0xEC, 0xC6, 0xC4, /* 0x84-0x87 */
+	0xBE, 0xB1, 0xF2, 0xA1, 0xBC, 0xD5, 0xEF, 0x46, /* 0x88-0x8B */
+	0xF2, 0xA2, 0xF2, 0xA3, 0xEF, 0x47, 0xF2, 0xA4, /* 0x8C-0x8F */
+	0xD2, 0xC3, 0xC6, 0xB5, 0xEF, 0x48, 0xCD, 0xC7, /* 0x90-0x93 */
+	0xF2, 0xA5, 0xEF, 0x49, 0xD3, 0xB1, 0xBF, 0xC5, /* 0x94-0x97 */
+	0xCC, 0xE2, 0xEF, 0x4A, 0xF2, 0xA6, 0xF2, 0xA7, /* 0x98-0x9B */
+	0xD1, 0xD5, 0xB6, 0xEE, 0xF2, 0xA8, 0xF2, 0xA9, /* 0x9C-0x9F */
+	0xB5, 0xDF, 0xF2, 0xAA, 0xF2, 0xAB, 0xEF, 0x4B, /* 0xA0-0xA3 */
+	0xB2, 0xFC, 0xF2, 0xAC, 0xF2, 0xAD, 0xC8, 0xA7, /* 0xA4-0xA7 */
+	0xEF, 0x4C, 0xEF, 0x4D, 0xEF, 0x4E, 0xEF, 0x4F, /* 0xA8-0xAB */
+	0xEF, 0x50, 0xEF, 0x51, 0xEF, 0x52, 0xEF, 0x53, /* 0xAC-0xAF */
+	0xEF, 0x54, 0xEF, 0x55, 0xEF, 0x56, 0xEF, 0x57, /* 0xB0-0xB3 */
+	0xEF, 0x58, 0xEF, 0x59, 0xEF, 0x5A, 0xEF, 0x5B, /* 0xB4-0xB7 */
+	0xEF, 0x5C, 0xEF, 0x5D, 0xEF, 0x5E, 0xEF, 0x5F, /* 0xB8-0xBB */
+	0xEF, 0x60, 0xEF, 0x61, 0xEF, 0x62, 0xEF, 0x63, /* 0xBC-0xBF */
+	0xEF, 0x64, 0xEF, 0x65, 0xEF, 0x66, 0xEF, 0x67, /* 0xC0-0xC3 */
+	0xEF, 0x68, 0xEF, 0x69, 0xEF, 0x6A, 0xEF, 0x6B, /* 0xC4-0xC7 */
+	0xEF, 0x6C, 0xEF, 0x6D, 0xEF, 0x6E, 0xEF, 0x6F, /* 0xC8-0xCB */
+	0xEF, 0x70, 0xEF, 0x71, 0xB7, 0xE7, 0xEF, 0x72, /* 0xCC-0xCF */
+	0xEF, 0x73, 0xEC, 0xA9, 0xEC, 0xAA, 0xEC, 0xAB, /* 0xD0-0xD3 */
+	0xEF, 0x74, 0xEC, 0xAC, 0xEF, 0x75, 0xEF, 0x76, /* 0xD4-0xD7 */
+	0xC6, 0xAE, 0xEC, 0xAD, 0xEC, 0xAE, 0xEF, 0x77, /* 0xD8-0xDB */
+	0xEF, 0x78, 0xEF, 0x79, 0xB7, 0xC9, 0xCA, 0xB3, /* 0xDC-0xDF */
+	0xEF, 0x7A, 0xEF, 0x7B, 0xEF, 0x7C, 0xEF, 0x7D, /* 0xE0-0xE3 */
+	0xEF, 0x7E, 0xEF, 0x80, 0xEF, 0x81, 0xE2, 0xB8, /* 0xE4-0xE7 */
+	0xF7, 0xCF, 0xEF, 0x82, 0xEF, 0x83, 0xEF, 0x84, /* 0xE8-0xEB */
+	0xEF, 0x85, 0xEF, 0x86, 0xEF, 0x87, 0xEF, 0x88, /* 0xEC-0xEF */
+	0xEF, 0x89, 0xEF, 0x8A, 0xEF, 0x8B, 0xEF, 0x8C, /* 0xF0-0xF3 */
+	0xEF, 0x8D, 0xEF, 0x8E, 0xEF, 0x8F, 0xEF, 0x90, /* 0xF4-0xF7 */
+	0xEF, 0x91, 0xEF, 0x92, 0xEF, 0x93, 0xEF, 0x94, /* 0xF8-0xFB */
+	0xEF, 0x95, 0xEF, 0x96, 0xEF, 0x97, 0xEF, 0x98, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_99[512] = {
+	0xEF, 0x99, 0xEF, 0x9A, 0xEF, 0x9B, 0xEF, 0x9C, /* 0x00-0x03 */
+	0xEF, 0x9D, 0xEF, 0x9E, 0xEF, 0x9F, 0xEF, 0xA0, /* 0x04-0x07 */
+	0xF0, 0x40, 0xF0, 0x41, 0xF0, 0x42, 0xF0, 0x43, /* 0x08-0x0B */
+	0xF0, 0x44, 0xF7, 0xD0, 0xF0, 0x45, 0xF0, 0x46, /* 0x0C-0x0F */
+	0xB2, 0xCD, 0xF0, 0x47, 0xF0, 0x48, 0xF0, 0x49, /* 0x10-0x13 */
+	0xF0, 0x4A, 0xF0, 0x4B, 0xF0, 0x4C, 0xF0, 0x4D, /* 0x14-0x17 */
+	0xF0, 0x4E, 0xF0, 0x4F, 0xF0, 0x50, 0xF0, 0x51, /* 0x18-0x1B */
+	0xF0, 0x52, 0xF0, 0x53, 0xF0, 0x54, 0xF0, 0x55, /* 0x1C-0x1F */
+	0xF0, 0x56, 0xF0, 0x57, 0xF0, 0x58, 0xF0, 0x59, /* 0x20-0x23 */
+	0xF0, 0x5A, 0xF0, 0x5B, 0xF0, 0x5C, 0xF0, 0x5D, /* 0x24-0x27 */
+	0xF0, 0x5E, 0xF0, 0x5F, 0xF0, 0x60, 0xF0, 0x61, /* 0x28-0x2B */
+	0xF0, 0x62, 0xF0, 0x63, 0xF7, 0xD1, 0xF0, 0x64, /* 0x2C-0x2F */
+	0xF0, 0x65, 0xF0, 0x66, 0xF0, 0x67, 0xF0, 0x68, /* 0x30-0x33 */
+	0xF0, 0x69, 0xF0, 0x6A, 0xF0, 0x6B, 0xF0, 0x6C, /* 0x34-0x37 */
+	0xF0, 0x6D, 0xF0, 0x6E, 0xF0, 0x6F, 0xF0, 0x70, /* 0x38-0x3B */
+	0xF0, 0x71, 0xF0, 0x72, 0xF0, 0x73, 0xF0, 0x74, /* 0x3C-0x3F */
+	0xF0, 0x75, 0xF0, 0x76, 0xF0, 0x77, 0xF0, 0x78, /* 0x40-0x43 */
+	0xF0, 0x79, 0xF0, 0x7A, 0xF0, 0x7B, 0xF0, 0x7C, /* 0x44-0x47 */
+	0xF0, 0x7D, 0xF0, 0x7E, 0xF0, 0x80, 0xF0, 0x81, /* 0x48-0x4B */
+	0xF0, 0x82, 0xF0, 0x83, 0xF0, 0x84, 0xF0, 0x85, /* 0x4C-0x4F */
+	0xF0, 0x86, 0xF0, 0x87, 0xF0, 0x88, 0xF0, 0x89, /* 0x50-0x53 */
+	0xF7, 0xD3, 0xF7, 0xD2, 0xF0, 0x8A, 0xF0, 0x8B, /* 0x54-0x57 */
+	0xF0, 0x8C, 0xF0, 0x8D, 0xF0, 0x8E, 0xF0, 0x8F, /* 0x58-0x5B */
+	0xF0, 0x90, 0xF0, 0x91, 0xF0, 0x92, 0xF0, 0x93, /* 0x5C-0x5F */
+	0xF0, 0x94, 0xF0, 0x95, 0xF0, 0x96, 0xE2, 0xBB, /* 0x60-0x63 */
+	0xF0, 0x97, 0xBC, 0xA2, 0xF0, 0x98, 0xE2, 0xBC, /* 0x64-0x67 */
+	0xE2, 0xBD, 0xE2, 0xBE, 0xE2, 0xBF, 0xE2, 0xC0, /* 0x68-0x6B */
+	0xE2, 0xC1, 0xB7, 0xB9, 0xD2, 0xFB, 0xBD, 0xA4, /* 0x6C-0x6F */
+	0xCA, 0xCE, 0xB1, 0xA5, 0xCB, 0xC7, 0xF0, 0x99, /* 0x70-0x73 */
+	0xE2, 0xC2, 0xB6, 0xFC, 0xC8, 0xC4, 0xE2, 0xC3, /* 0x74-0x77 */
+	0xF0, 0x9A, 0xF0, 0x9B, 0xBD, 0xC8, 0xF0, 0x9C, /* 0x78-0x7B */
+	0xB1, 0xFD, 0xE2, 0xC4, 0xF0, 0x9D, 0xB6, 0xF6, /* 0x7C-0x7F */
+	
+	0xE2, 0xC5, 0xC4, 0xD9, 0xF0, 0x9E, 0xF0, 0x9F, /* 0x80-0x83 */
+	0xE2, 0xC6, 0xCF, 0xDA, 0xB9, 0xDD, 0xE2, 0xC7, /* 0x84-0x87 */
+	0xC0, 0xA1, 0xF0, 0xA0, 0xE2, 0xC8, 0xB2, 0xF6, /* 0x88-0x8B */
+	0xF1, 0x40, 0xE2, 0xC9, 0xF1, 0x41, 0xC1, 0xF3, /* 0x8C-0x8F */
+	0xE2, 0xCA, 0xE2, 0xCB, 0xC2, 0xF8, 0xE2, 0xCC, /* 0x90-0x93 */
+	0xE2, 0xCD, 0xE2, 0xCE, 0xCA, 0xD7, 0xD8, 0xB8, /* 0x94-0x97 */
+	0xD9, 0xE5, 0xCF, 0xE3, 0xF1, 0x42, 0xF1, 0x43, /* 0x98-0x9B */
+	0xF1, 0x44, 0xF1, 0x45, 0xF1, 0x46, 0xF1, 0x47, /* 0x9C-0x9F */
+	0xF1, 0x48, 0xF1, 0x49, 0xF1, 0x4A, 0xF1, 0x4B, /* 0xA0-0xA3 */
+	0xF1, 0x4C, 0xF0, 0xA5, 0xF1, 0x4D, 0xF1, 0x4E, /* 0xA4-0xA7 */
+	0xDC, 0xB0, 0xF1, 0x4F, 0xF1, 0x50, 0xF1, 0x51, /* 0xA8-0xAB */
+	0xF1, 0x52, 0xF1, 0x53, 0xF1, 0x54, 0xF1, 0x55, /* 0xAC-0xAF */
+	0xF1, 0x56, 0xF1, 0x57, 0xF1, 0x58, 0xF1, 0x59, /* 0xB0-0xB3 */
+	0xF1, 0x5A, 0xF1, 0x5B, 0xF1, 0x5C, 0xF1, 0x5D, /* 0xB4-0xB7 */
+	0xF1, 0x5E, 0xF1, 0x5F, 0xF1, 0x60, 0xF1, 0x61, /* 0xB8-0xBB */
+	0xF1, 0x62, 0xF1, 0x63, 0xF1, 0x64, 0xF1, 0x65, /* 0xBC-0xBF */
+	0xF1, 0x66, 0xF1, 0x67, 0xF1, 0x68, 0xF1, 0x69, /* 0xC0-0xC3 */
+	0xF1, 0x6A, 0xF1, 0x6B, 0xF1, 0x6C, 0xF1, 0x6D, /* 0xC4-0xC7 */
+	0xF1, 0x6E, 0xF1, 0x6F, 0xF1, 0x70, 0xF1, 0x71, /* 0xC8-0xCB */
+	0xF1, 0x72, 0xF1, 0x73, 0xF1, 0x74, 0xF1, 0x75, /* 0xCC-0xCF */
+	0xF1, 0x76, 0xF1, 0x77, 0xF1, 0x78, 0xF1, 0x79, /* 0xD0-0xD3 */
+	0xF1, 0x7A, 0xF1, 0x7B, 0xF1, 0x7C, 0xF1, 0x7D, /* 0xD4-0xD7 */
+	0xF1, 0x7E, 0xF1, 0x80, 0xF1, 0x81, 0xF1, 0x82, /* 0xD8-0xDB */
+	0xF1, 0x83, 0xF1, 0x84, 0xF1, 0x85, 0xF1, 0x86, /* 0xDC-0xDF */
+	0xF1, 0x87, 0xF1, 0x88, 0xF1, 0x89, 0xF1, 0x8A, /* 0xE0-0xE3 */
+	0xF1, 0x8B, 0xF1, 0x8C, 0xF1, 0x8D, 0xF1, 0x8E, /* 0xE4-0xE7 */
+	0xF1, 0x8F, 0xF1, 0x90, 0xF1, 0x91, 0xF1, 0x92, /* 0xE8-0xEB */
+	0xF1, 0x93, 0xF1, 0x94, 0xF1, 0x95, 0xF1, 0x96, /* 0xEC-0xEF */
+	0xF1, 0x97, 0xF1, 0x98, 0xF1, 0x99, 0xF1, 0x9A, /* 0xF0-0xF3 */
+	0xF1, 0x9B, 0xF1, 0x9C, 0xF1, 0x9D, 0xF1, 0x9E, /* 0xF4-0xF7 */
+	0xF1, 0x9F, 0xF1, 0xA0, 0xF2, 0x40, 0xF2, 0x41, /* 0xF8-0xFB */
+	0xF2, 0x42, 0xF2, 0x43, 0xF2, 0x44, 0xF2, 0x45, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_9A[512] = {
+	0xF2, 0x46, 0xF2, 0x47, 0xF2, 0x48, 0xF2, 0x49, /* 0x00-0x03 */
+	0xF2, 0x4A, 0xF2, 0x4B, 0xF2, 0x4C, 0xF2, 0x4D, /* 0x04-0x07 */
+	0xF2, 0x4E, 0xF2, 0x4F, 0xF2, 0x50, 0xF2, 0x51, /* 0x08-0x0B */
+	0xF2, 0x52, 0xF2, 0x53, 0xF2, 0x54, 0xF2, 0x55, /* 0x0C-0x0F */
+	0xF2, 0x56, 0xF2, 0x57, 0xF2, 0x58, 0xF2, 0x59, /* 0x10-0x13 */
+	0xF2, 0x5A, 0xF2, 0x5B, 0xF2, 0x5C, 0xF2, 0x5D, /* 0x14-0x17 */
+	0xF2, 0x5E, 0xF2, 0x5F, 0xF2, 0x60, 0xF2, 0x61, /* 0x18-0x1B */
+	0xF2, 0x62, 0xF2, 0x63, 0xF2, 0x64, 0xF2, 0x65, /* 0x1C-0x1F */
+	0xF2, 0x66, 0xF2, 0x67, 0xF2, 0x68, 0xF2, 0x69, /* 0x20-0x23 */
+	0xF2, 0x6A, 0xF2, 0x6B, 0xF2, 0x6C, 0xF2, 0x6D, /* 0x24-0x27 */
+	0xF2, 0x6E, 0xF2, 0x6F, 0xF2, 0x70, 0xF2, 0x71, /* 0x28-0x2B */
+	0xF2, 0x72, 0xF2, 0x73, 0xF2, 0x74, 0xF2, 0x75, /* 0x2C-0x2F */
+	0xF2, 0x76, 0xF2, 0x77, 0xF2, 0x78, 0xF2, 0x79, /* 0x30-0x33 */
+	0xF2, 0x7A, 0xF2, 0x7B, 0xF2, 0x7C, 0xF2, 0x7D, /* 0x34-0x37 */
+	0xF2, 0x7E, 0xF2, 0x80, 0xF2, 0x81, 0xF2, 0x82, /* 0x38-0x3B */
+	0xF2, 0x83, 0xF2, 0x84, 0xF2, 0x85, 0xF2, 0x86, /* 0x3C-0x3F */
+	0xF2, 0x87, 0xF2, 0x88, 0xF2, 0x89, 0xF2, 0x8A, /* 0x40-0x43 */
+	0xF2, 0x8B, 0xF2, 0x8C, 0xF2, 0x8D, 0xF2, 0x8E, /* 0x44-0x47 */
+	0xF2, 0x8F, 0xF2, 0x90, 0xF2, 0x91, 0xF2, 0x92, /* 0x48-0x4B */
+	0xF2, 0x93, 0xF2, 0x94, 0xF2, 0x95, 0xF2, 0x96, /* 0x4C-0x4F */
+	0xF2, 0x97, 0xF2, 0x98, 0xF2, 0x99, 0xF2, 0x9A, /* 0x50-0x53 */
+	0xF2, 0x9B, 0xF2, 0x9C, 0xF2, 0x9D, 0xF2, 0x9E, /* 0x54-0x57 */
+	0xF2, 0x9F, 0xF2, 0xA0, 0xF3, 0x40, 0xF3, 0x41, /* 0x58-0x5B */
+	0xF3, 0x42, 0xF3, 0x43, 0xF3, 0x44, 0xF3, 0x45, /* 0x5C-0x5F */
+	0xF3, 0x46, 0xF3, 0x47, 0xF3, 0x48, 0xF3, 0x49, /* 0x60-0x63 */
+	0xF3, 0x4A, 0xF3, 0x4B, 0xF3, 0x4C, 0xF3, 0x4D, /* 0x64-0x67 */
+	0xF3, 0x4E, 0xF3, 0x4F, 0xF3, 0x50, 0xF3, 0x51, /* 0x68-0x6B */
+	0xC2, 0xED, 0xD4, 0xA6, 0xCD, 0xD4, 0xD1, 0xB1, /* 0x6C-0x6F */
+	0xB3, 0xDB, 0xC7, 0xFD, 0xF3, 0x52, 0xB2, 0xB5, /* 0x70-0x73 */
+	0xC2, 0xBF, 0xE6, 0xE0, 0xCA, 0xBB, 0xE6, 0xE1, /* 0x74-0x77 */
+	0xE6, 0xE2, 0xBE, 0xD4, 0xE6, 0xE3, 0xD7, 0xA4, /* 0x78-0x7B */
+	0xCD, 0xD5, 0xE6, 0xE5, 0xBC, 0xDD, 0xE6, 0xE4, /* 0x7C-0x7F */
+	
+	0xE6, 0xE6, 0xE6, 0xE7, 0xC2, 0xEE, 0xF3, 0x53, /* 0x80-0x83 */
+	0xBD, 0xBE, 0xE6, 0xE8, 0xC2, 0xE6, 0xBA, 0xA7, /* 0x84-0x87 */
+	0xE6, 0xE9, 0xF3, 0x54, 0xE6, 0xEA, 0xB3, 0xD2, /* 0x88-0x8B */
+	0xD1, 0xE9, 0xF3, 0x55, 0xF3, 0x56, 0xBF, 0xA5, /* 0x8C-0x8F */
+	0xE6, 0xEB, 0xC6, 0xEF, 0xE6, 0xEC, 0xE6, 0xED, /* 0x90-0x93 */
+	0xF3, 0x57, 0xF3, 0x58, 0xE6, 0xEE, 0xC6, 0xAD, /* 0x94-0x97 */
+	0xE6, 0xEF, 0xF3, 0x59, 0xC9, 0xA7, 0xE6, 0xF0, /* 0x98-0x9B */
+	0xE6, 0xF1, 0xE6, 0xF2, 0xE5, 0xB9, 0xE6, 0xF3, /* 0x9C-0x9F */
+	0xE6, 0xF4, 0xC2, 0xE2, 0xE6, 0xF5, 0xE6, 0xF6, /* 0xA0-0xA3 */
+	0xD6, 0xE8, 0xE6, 0xF7, 0xF3, 0x5A, 0xE6, 0xF8, /* 0xA4-0xA7 */
+	0xB9, 0xC7, 0xF3, 0x5B, 0xF3, 0x5C, 0xF3, 0x5D, /* 0xA8-0xAB */
+	0xF3, 0x5E, 0xF3, 0x5F, 0xF3, 0x60, 0xF3, 0x61, /* 0xAC-0xAF */
+	0xF7, 0xBB, 0xF7, 0xBA, 0xF3, 0x62, 0xF3, 0x63, /* 0xB0-0xB3 */
+	0xF3, 0x64, 0xF3, 0x65, 0xF7, 0xBE, 0xF7, 0xBC, /* 0xB4-0xB7 */
+	0xBA, 0xA1, 0xF3, 0x66, 0xF7, 0xBF, 0xF3, 0x67, /* 0xB8-0xBB */
+	0xF7, 0xC0, 0xF3, 0x68, 0xF3, 0x69, 0xF3, 0x6A, /* 0xBC-0xBF */
+	0xF7, 0xC2, 0xF7, 0xC1, 0xF7, 0xC4, 0xF3, 0x6B, /* 0xC0-0xC3 */
+	0xF3, 0x6C, 0xF7, 0xC3, 0xF3, 0x6D, 0xF3, 0x6E, /* 0xC4-0xC7 */
+	0xF3, 0x6F, 0xF3, 0x70, 0xF3, 0x71, 0xF7, 0xC5, /* 0xC8-0xCB */
+	0xF7, 0xC6, 0xF3, 0x72, 0xF3, 0x73, 0xF3, 0x74, /* 0xCC-0xCF */
+	0xF3, 0x75, 0xF7, 0xC7, 0xF3, 0x76, 0xCB, 0xE8, /* 0xD0-0xD3 */
+	0xF3, 0x77, 0xF3, 0x78, 0xF3, 0x79, 0xF3, 0x7A, /* 0xD4-0xD7 */
+	0xB8, 0xDF, 0xF3, 0x7B, 0xF3, 0x7C, 0xF3, 0x7D, /* 0xD8-0xDB */
+	0xF3, 0x7E, 0xF3, 0x80, 0xF3, 0x81, 0xF7, 0xD4, /* 0xDC-0xDF */
+	0xF3, 0x82, 0xF7, 0xD5, 0xF3, 0x83, 0xF3, 0x84, /* 0xE0-0xE3 */
+	0xF3, 0x85, 0xF3, 0x86, 0xF7, 0xD6, 0xF3, 0x87, /* 0xE4-0xE7 */
+	0xF3, 0x88, 0xF3, 0x89, 0xF3, 0x8A, 0xF7, 0xD8, /* 0xE8-0xEB */
+	0xF3, 0x8B, 0xF7, 0xDA, 0xF3, 0x8C, 0xF7, 0xD7, /* 0xEC-0xEF */
+	0xF3, 0x8D, 0xF3, 0x8E, 0xF3, 0x8F, 0xF3, 0x90, /* 0xF0-0xF3 */
+	0xF3, 0x91, 0xF3, 0x92, 0xF3, 0x93, 0xF3, 0x94, /* 0xF4-0xF7 */
+	0xF3, 0x95, 0xF7, 0xDB, 0xF3, 0x96, 0xF7, 0xD9, /* 0xF8-0xFB */
+	0xF3, 0x97, 0xF3, 0x98, 0xF3, 0x99, 0xF3, 0x9A, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_9B[512] = {
+	0xF3, 0x9B, 0xF3, 0x9C, 0xF3, 0x9D, 0xD7, 0xD7, /* 0x00-0x03 */
+	0xF3, 0x9E, 0xF3, 0x9F, 0xF3, 0xA0, 0xF4, 0x40, /* 0x04-0x07 */
+	0xF7, 0xDC, 0xF4, 0x41, 0xF4, 0x42, 0xF4, 0x43, /* 0x08-0x0B */
+	0xF4, 0x44, 0xF4, 0x45, 0xF4, 0x46, 0xF7, 0xDD, /* 0x0C-0x0F */
+	0xF4, 0x47, 0xF4, 0x48, 0xF4, 0x49, 0xF7, 0xDE, /* 0x10-0x13 */
+	0xF4, 0x4A, 0xF4, 0x4B, 0xF4, 0x4C, 0xF4, 0x4D, /* 0x14-0x17 */
+	0xF4, 0x4E, 0xF4, 0x4F, 0xF4, 0x50, 0xF4, 0x51, /* 0x18-0x1B */
+	0xF4, 0x52, 0xF4, 0x53, 0xF4, 0x54, 0xF7, 0xDF, /* 0x1C-0x1F */
+	0xF4, 0x55, 0xF4, 0x56, 0xF4, 0x57, 0xF7, 0xE0, /* 0x20-0x23 */
+	0xF4, 0x58, 0xF4, 0x59, 0xF4, 0x5A, 0xF4, 0x5B, /* 0x24-0x27 */
+	0xF4, 0x5C, 0xF4, 0x5D, 0xF4, 0x5E, 0xF4, 0x5F, /* 0x28-0x2B */
+	0xF4, 0x60, 0xF4, 0x61, 0xF4, 0x62, 0xDB, 0xCB, /* 0x2C-0x2F */
+	0xF4, 0x63, 0xF4, 0x64, 0xD8, 0xAA, 0xF4, 0x65, /* 0x30-0x33 */
+	0xF4, 0x66, 0xF4, 0x67, 0xF4, 0x68, 0xF4, 0x69, /* 0x34-0x37 */
+	0xF4, 0x6A, 0xF4, 0x6B, 0xF4, 0x6C, 0xE5, 0xF7, /* 0x38-0x3B */
+	0xB9, 0xED, 0xF4, 0x6D, 0xF4, 0x6E, 0xF4, 0x6F, /* 0x3C-0x3F */
+	0xF4, 0x70, 0xBF, 0xFD, 0xBB, 0xEA, 0xF7, 0xC9, /* 0x40-0x43 */
+	0xC6, 0xC7, 0xF7, 0xC8, 0xF4, 0x71, 0xF7, 0xCA, /* 0x44-0x47 */
+	0xF7, 0xCC, 0xF7, 0xCB, 0xF4, 0x72, 0xF4, 0x73, /* 0x48-0x4B */
+	0xF4, 0x74, 0xF7, 0xCD, 0xF4, 0x75, 0xCE, 0xBA, /* 0x4C-0x4F */
+	0xF4, 0x76, 0xF7, 0xCE, 0xF4, 0x77, 0xF4, 0x78, /* 0x50-0x53 */
+	0xC4, 0xA7, 0xF4, 0x79, 0xF4, 0x7A, 0xF4, 0x7B, /* 0x54-0x57 */
+	0xF4, 0x7C, 0xF4, 0x7D, 0xF4, 0x7E, 0xF4, 0x80, /* 0x58-0x5B */
+	0xF4, 0x81, 0xF4, 0x82, 0xF4, 0x83, 0xF4, 0x84, /* 0x5C-0x5F */
+	0xF4, 0x85, 0xF4, 0x86, 0xF4, 0x87, 0xF4, 0x88, /* 0x60-0x63 */
+	0xF4, 0x89, 0xF4, 0x8A, 0xF4, 0x8B, 0xF4, 0x8C, /* 0x64-0x67 */
+	0xF4, 0x8D, 0xF4, 0x8E, 0xF4, 0x8F, 0xF4, 0x90, /* 0x68-0x6B */
+	0xF4, 0x91, 0xF4, 0x92, 0xF4, 0x93, 0xF4, 0x94, /* 0x6C-0x6F */
+	0xF4, 0x95, 0xF4, 0x96, 0xF4, 0x97, 0xF4, 0x98, /* 0x70-0x73 */
+	0xF4, 0x99, 0xF4, 0x9A, 0xF4, 0x9B, 0xF4, 0x9C, /* 0x74-0x77 */
+	0xF4, 0x9D, 0xF4, 0x9E, 0xF4, 0x9F, 0xF4, 0xA0, /* 0x78-0x7B */
+	0xF5, 0x40, 0xF5, 0x41, 0xF5, 0x42, 0xF5, 0x43, /* 0x7C-0x7F */
+	
+	0xF5, 0x44, 0xF5, 0x45, 0xF5, 0x46, 0xF5, 0x47, /* 0x80-0x83 */
+	0xF5, 0x48, 0xF5, 0x49, 0xF5, 0x4A, 0xF5, 0x4B, /* 0x84-0x87 */
+	0xF5, 0x4C, 0xF5, 0x4D, 0xF5, 0x4E, 0xF5, 0x4F, /* 0x88-0x8B */
+	0xF5, 0x50, 0xF5, 0x51, 0xF5, 0x52, 0xF5, 0x53, /* 0x8C-0x8F */
+	0xF5, 0x54, 0xF5, 0x55, 0xF5, 0x56, 0xF5, 0x57, /* 0x90-0x93 */
+	0xF5, 0x58, 0xF5, 0x59, 0xF5, 0x5A, 0xF5, 0x5B, /* 0x94-0x97 */
+	0xF5, 0x5C, 0xF5, 0x5D, 0xF5, 0x5E, 0xF5, 0x5F, /* 0x98-0x9B */
+	0xF5, 0x60, 0xF5, 0x61, 0xF5, 0x62, 0xF5, 0x63, /* 0x9C-0x9F */
+	0xF5, 0x64, 0xF5, 0x65, 0xF5, 0x66, 0xF5, 0x67, /* 0xA0-0xA3 */
+	0xF5, 0x68, 0xF5, 0x69, 0xF5, 0x6A, 0xF5, 0x6B, /* 0xA4-0xA7 */
+	0xF5, 0x6C, 0xF5, 0x6D, 0xF5, 0x6E, 0xF5, 0x6F, /* 0xA8-0xAB */
+	0xF5, 0x70, 0xF5, 0x71, 0xF5, 0x72, 0xF5, 0x73, /* 0xAC-0xAF */
+	0xF5, 0x74, 0xF5, 0x75, 0xF5, 0x76, 0xF5, 0x77, /* 0xB0-0xB3 */
+	0xF5, 0x78, 0xF5, 0x79, 0xF5, 0x7A, 0xF5, 0x7B, /* 0xB4-0xB7 */
+	0xF5, 0x7C, 0xF5, 0x7D, 0xF5, 0x7E, 0xF5, 0x80, /* 0xB8-0xBB */
+	0xF5, 0x81, 0xF5, 0x82, 0xF5, 0x83, 0xF5, 0x84, /* 0xBC-0xBF */
+	0xF5, 0x85, 0xF5, 0x86, 0xF5, 0x87, 0xF5, 0x88, /* 0xC0-0xC3 */
+	0xF5, 0x89, 0xF5, 0x8A, 0xF5, 0x8B, 0xF5, 0x8C, /* 0xC4-0xC7 */
+	0xF5, 0x8D, 0xF5, 0x8E, 0xF5, 0x8F, 0xF5, 0x90, /* 0xC8-0xCB */
+	0xF5, 0x91, 0xF5, 0x92, 0xF5, 0x93, 0xF5, 0x94, /* 0xCC-0xCF */
+	0xF5, 0x95, 0xF5, 0x96, 0xF5, 0x97, 0xF5, 0x98, /* 0xD0-0xD3 */
+	0xF5, 0x99, 0xF5, 0x9A, 0xF5, 0x9B, 0xF5, 0x9C, /* 0xD4-0xD7 */
+	0xF5, 0x9D, 0xF5, 0x9E, 0xF5, 0x9F, 0xF5, 0xA0, /* 0xD8-0xDB */
+	0xF6, 0x40, 0xF6, 0x41, 0xF6, 0x42, 0xF6, 0x43, /* 0xDC-0xDF */
+	0xF6, 0x44, 0xF6, 0x45, 0xF6, 0x46, 0xF6, 0x47, /* 0xE0-0xE3 */
+	0xF6, 0x48, 0xF6, 0x49, 0xF6, 0x4A, 0xF6, 0x4B, /* 0xE4-0xE7 */
+	0xF6, 0x4C, 0xF6, 0x4D, 0xF6, 0x4E, 0xF6, 0x4F, /* 0xE8-0xEB */
+	0xF6, 0x50, 0xF6, 0x51, 0xF6, 0x52, 0xF6, 0x53, /* 0xEC-0xEF */
+	0xF6, 0x54, 0xF6, 0x55, 0xF6, 0x56, 0xF6, 0x57, /* 0xF0-0xF3 */
+	0xF6, 0x58, 0xF6, 0x59, 0xF6, 0x5A, 0xF6, 0x5B, /* 0xF4-0xF7 */
+	0xF6, 0x5C, 0xF6, 0x5D, 0xF6, 0x5E, 0xF6, 0x5F, /* 0xF8-0xFB */
+	0xF6, 0x60, 0xF6, 0x61, 0xF6, 0x62, 0xF6, 0x63, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_9C[512] = {
+	0xF6, 0x64, 0xF6, 0x65, 0xF6, 0x66, 0xF6, 0x67, /* 0x00-0x03 */
+	0xF6, 0x68, 0xF6, 0x69, 0xF6, 0x6A, 0xF6, 0x6B, /* 0x04-0x07 */
+	0xF6, 0x6C, 0xF6, 0x6D, 0xF6, 0x6E, 0xF6, 0x6F, /* 0x08-0x0B */
+	0xF6, 0x70, 0xF6, 0x71, 0xF6, 0x72, 0xF6, 0x73, /* 0x0C-0x0F */
+	0xF6, 0x74, 0xF6, 0x75, 0xF6, 0x76, 0xF6, 0x77, /* 0x10-0x13 */
+	0xF6, 0x78, 0xF6, 0x79, 0xF6, 0x7A, 0xF6, 0x7B, /* 0x14-0x17 */
+	0xF6, 0x7C, 0xF6, 0x7D, 0xF6, 0x7E, 0xF6, 0x80, /* 0x18-0x1B */
+	0xF6, 0x81, 0xF6, 0x82, 0xF6, 0x83, 0xF6, 0x84, /* 0x1C-0x1F */
+	0xF6, 0x85, 0xF6, 0x86, 0xF6, 0x87, 0xF6, 0x88, /* 0x20-0x23 */
+	0xF6, 0x89, 0xF6, 0x8A, 0xF6, 0x8B, 0xF6, 0x8C, /* 0x24-0x27 */
+	0xF6, 0x8D, 0xF6, 0x8E, 0xF6, 0x8F, 0xF6, 0x90, /* 0x28-0x2B */
+	0xF6, 0x91, 0xF6, 0x92, 0xF6, 0x93, 0xF6, 0x94, /* 0x2C-0x2F */
+	0xF6, 0x95, 0xF6, 0x96, 0xF6, 0x97, 0xF6, 0x98, /* 0x30-0x33 */
+	0xF6, 0x99, 0xF6, 0x9A, 0xF6, 0x9B, 0xF6, 0x9C, /* 0x34-0x37 */
+	0xF6, 0x9D, 0xF6, 0x9E, 0xF6, 0x9F, 0xF6, 0xA0, /* 0x38-0x3B */
+	0xF7, 0x40, 0xF7, 0x41, 0xF7, 0x42, 0xF7, 0x43, /* 0x3C-0x3F */
+	0xF7, 0x44, 0xF7, 0x45, 0xF7, 0x46, 0xF7, 0x47, /* 0x40-0x43 */
+	0xF7, 0x48, 0xF7, 0x49, 0xF7, 0x4A, 0xF7, 0x4B, /* 0x44-0x47 */
+	0xF7, 0x4C, 0xF7, 0x4D, 0xF7, 0x4E, 0xF7, 0x4F, /* 0x48-0x4B */
+	0xF7, 0x50, 0xF7, 0x51, 0xF7, 0x52, 0xF7, 0x53, /* 0x4C-0x4F */
+	0xF7, 0x54, 0xF7, 0x55, 0xF7, 0x56, 0xF7, 0x57, /* 0x50-0x53 */
+	0xF7, 0x58, 0xF7, 0x59, 0xF7, 0x5A, 0xF7, 0x5B, /* 0x54-0x57 */
+	0xF7, 0x5C, 0xF7, 0x5D, 0xF7, 0x5E, 0xF7, 0x5F, /* 0x58-0x5B */
+	0xF7, 0x60, 0xF7, 0x61, 0xF7, 0x62, 0xF7, 0x63, /* 0x5C-0x5F */
+	0xF7, 0x64, 0xF7, 0x65, 0xF7, 0x66, 0xF7, 0x67, /* 0x60-0x63 */
+	0xF7, 0x68, 0xF7, 0x69, 0xF7, 0x6A, 0xF7, 0x6B, /* 0x64-0x67 */
+	0xF7, 0x6C, 0xF7, 0x6D, 0xF7, 0x6E, 0xF7, 0x6F, /* 0x68-0x6B */
+	0xF7, 0x70, 0xF7, 0x71, 0xF7, 0x72, 0xF7, 0x73, /* 0x6C-0x6F */
+	0xF7, 0x74, 0xF7, 0x75, 0xF7, 0x76, 0xF7, 0x77, /* 0x70-0x73 */
+	0xF7, 0x78, 0xF7, 0x79, 0xF7, 0x7A, 0xF7, 0x7B, /* 0x74-0x77 */
+	0xF7, 0x7C, 0xF7, 0x7D, 0xF7, 0x7E, 0xF7, 0x80, /* 0x78-0x7B */
+	0xD3, 0xE3, 0xF7, 0x81, 0xF7, 0x82, 0xF6, 0xCF, /* 0x7C-0x7F */
+	
+	0xF7, 0x83, 0xC2, 0xB3, 0xF6, 0xD0, 0xF7, 0x84, /* 0x80-0x83 */
+	0xF7, 0x85, 0xF6, 0xD1, 0xF6, 0xD2, 0xF6, 0xD3, /* 0x84-0x87 */
+	0xF6, 0xD4, 0xF7, 0x86, 0xF7, 0x87, 0xF6, 0xD6, /* 0x88-0x8B */
+	0xF7, 0x88, 0xB1, 0xAB, 0xF6, 0xD7, 0xF7, 0x89, /* 0x8C-0x8F */
+	0xF6, 0xD8, 0xF6, 0xD9, 0xF6, 0xDA, 0xF7, 0x8A, /* 0x90-0x93 */
+	0xF6, 0xDB, 0xF6, 0xDC, 0xF7, 0x8B, 0xF7, 0x8C, /* 0x94-0x97 */
+	0xF7, 0x8D, 0xF7, 0x8E, 0xF6, 0xDD, 0xF6, 0xDE, /* 0x98-0x9B */
+	0xCF, 0xCA, 0xF7, 0x8F, 0xF6, 0xDF, 0xF6, 0xE0, /* 0x9C-0x9F */
+	0xF6, 0xE1, 0xF6, 0xE2, 0xF6, 0xE3, 0xF6, 0xE4, /* 0xA0-0xA3 */
+	0xC0, 0xF0, 0xF6, 0xE5, 0xF6, 0xE6, 0xF6, 0xE7, /* 0xA4-0xA7 */
+	0xF6, 0xE8, 0xF6, 0xE9, 0xF7, 0x90, 0xF6, 0xEA, /* 0xA8-0xAB */
+	0xF7, 0x91, 0xF6, 0xEB, 0xF6, 0xEC, 0xF7, 0x92, /* 0xAC-0xAF */
+	0xF6, 0xED, 0xF6, 0xEE, 0xF6, 0xEF, 0xF6, 0xF0, /* 0xB0-0xB3 */
+	0xF6, 0xF1, 0xF6, 0xF2, 0xF6, 0xF3, 0xF6, 0xF4, /* 0xB4-0xB7 */
+	0xBE, 0xA8, 0xF7, 0x93, 0xF6, 0xF5, 0xF6, 0xF6, /* 0xB8-0xBB */
+	0xF6, 0xF7, 0xF6, 0xF8, 0xF7, 0x94, 0xF7, 0x95, /* 0xBC-0xBF */
+	0xF7, 0x96, 0xF7, 0x97, 0xF7, 0x98, 0xC8, 0xFA, /* 0xC0-0xC3 */
+	0xF6, 0xF9, 0xF6, 0xFA, 0xF6, 0xFB, 0xF6, 0xFC, /* 0xC4-0xC7 */
+	0xF7, 0x99, 0xF7, 0x9A, 0xF6, 0xFD, 0xF6, 0xFE, /* 0xC8-0xCB */
+	0xF7, 0xA1, 0xF7, 0xA2, 0xF7, 0xA3, 0xF7, 0xA4, /* 0xCC-0xCF */
+	0xF7, 0xA5, 0xF7, 0x9B, 0xF7, 0x9C, 0xF7, 0xA6, /* 0xD0-0xD3 */
+	0xF7, 0xA7, 0xF7, 0xA8, 0xB1, 0xEE, 0xF7, 0xA9, /* 0xD4-0xD7 */
+	0xF7, 0xAA, 0xF7, 0xAB, 0xF7, 0x9D, 0xF7, 0x9E, /* 0xD8-0xDB */
+	0xF7, 0xAC, 0xF7, 0xAD, 0xC1, 0xDB, 0xF7, 0xAE, /* 0xDC-0xDF */
+	0xF7, 0x9F, 0xF7, 0xA0, 0xF7, 0xAF, 0xF8, 0x40, /* 0xE0-0xE3 */
+	0xF8, 0x41, 0xF8, 0x42, 0xF8, 0x43, 0xF8, 0x44, /* 0xE4-0xE7 */
+	0xF8, 0x45, 0xF8, 0x46, 0xF8, 0x47, 0xF8, 0x48, /* 0xE8-0xEB */
+	0xF8, 0x49, 0xF8, 0x4A, 0xF8, 0x4B, 0xF8, 0x4C, /* 0xEC-0xEF */
+	0xF8, 0x4D, 0xF8, 0x4E, 0xF8, 0x4F, 0xF8, 0x50, /* 0xF0-0xF3 */
+	0xF8, 0x51, 0xF8, 0x52, 0xF8, 0x53, 0xF8, 0x54, /* 0xF4-0xF7 */
+	0xF8, 0x55, 0xF8, 0x56, 0xF8, 0x57, 0xF8, 0x58, /* 0xF8-0xFB */
+	0xF8, 0x59, 0xF8, 0x5A, 0xF8, 0x5B, 0xF8, 0x5C, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_9D[512] = {
+	0xF8, 0x5D, 0xF8, 0x5E, 0xF8, 0x5F, 0xF8, 0x60, /* 0x00-0x03 */
+	0xF8, 0x61, 0xF8, 0x62, 0xF8, 0x63, 0xF8, 0x64, /* 0x04-0x07 */
+	0xF8, 0x65, 0xF8, 0x66, 0xF8, 0x67, 0xF8, 0x68, /* 0x08-0x0B */
+	0xF8, 0x69, 0xF8, 0x6A, 0xF8, 0x6B, 0xF8, 0x6C, /* 0x0C-0x0F */
+	0xF8, 0x6D, 0xF8, 0x6E, 0xF8, 0x6F, 0xF8, 0x70, /* 0x10-0x13 */
+	0xF8, 0x71, 0xF8, 0x72, 0xF8, 0x73, 0xF8, 0x74, /* 0x14-0x17 */
+	0xF8, 0x75, 0xF8, 0x76, 0xF8, 0x77, 0xF8, 0x78, /* 0x18-0x1B */
+	0xF8, 0x79, 0xF8, 0x7A, 0xF8, 0x7B, 0xF8, 0x7C, /* 0x1C-0x1F */
+	0xF8, 0x7D, 0xF8, 0x7E, 0xF8, 0x80, 0xF8, 0x81, /* 0x20-0x23 */
+	0xF8, 0x82, 0xF8, 0x83, 0xF8, 0x84, 0xF8, 0x85, /* 0x24-0x27 */
+	0xF8, 0x86, 0xF8, 0x87, 0xF8, 0x88, 0xF8, 0x89, /* 0x28-0x2B */
+	0xF8, 0x8A, 0xF8, 0x8B, 0xF8, 0x8C, 0xF8, 0x8D, /* 0x2C-0x2F */
+	0xF8, 0x8E, 0xF8, 0x8F, 0xF8, 0x90, 0xF8, 0x91, /* 0x30-0x33 */
+	0xF8, 0x92, 0xF8, 0x93, 0xF8, 0x94, 0xF8, 0x95, /* 0x34-0x37 */
+	0xF8, 0x96, 0xF8, 0x97, 0xF8, 0x98, 0xF8, 0x99, /* 0x38-0x3B */
+	0xF8, 0x9A, 0xF8, 0x9B, 0xF8, 0x9C, 0xF8, 0x9D, /* 0x3C-0x3F */
+	0xF8, 0x9E, 0xF8, 0x9F, 0xF8, 0xA0, 0xF9, 0x40, /* 0x40-0x43 */
+	0xF9, 0x41, 0xF9, 0x42, 0xF9, 0x43, 0xF9, 0x44, /* 0x44-0x47 */
+	0xF9, 0x45, 0xF9, 0x46, 0xF9, 0x47, 0xF9, 0x48, /* 0x48-0x4B */
+	0xF9, 0x49, 0xF9, 0x4A, 0xF9, 0x4B, 0xF9, 0x4C, /* 0x4C-0x4F */
+	0xF9, 0x4D, 0xF9, 0x4E, 0xF9, 0x4F, 0xF9, 0x50, /* 0x50-0x53 */
+	0xF9, 0x51, 0xF9, 0x52, 0xF9, 0x53, 0xF9, 0x54, /* 0x54-0x57 */
+	0xF9, 0x55, 0xF9, 0x56, 0xF9, 0x57, 0xF9, 0x58, /* 0x58-0x5B */
+	0xF9, 0x59, 0xF9, 0x5A, 0xF9, 0x5B, 0xF9, 0x5C, /* 0x5C-0x5F */
+	0xF9, 0x5D, 0xF9, 0x5E, 0xF9, 0x5F, 0xF9, 0x60, /* 0x60-0x63 */
+	0xF9, 0x61, 0xF9, 0x62, 0xF9, 0x63, 0xF9, 0x64, /* 0x64-0x67 */
+	0xF9, 0x65, 0xF9, 0x66, 0xF9, 0x67, 0xF9, 0x68, /* 0x68-0x6B */
+	0xF9, 0x69, 0xF9, 0x6A, 0xF9, 0x6B, 0xF9, 0x6C, /* 0x6C-0x6F */
+	0xF9, 0x6D, 0xF9, 0x6E, 0xF9, 0x6F, 0xF9, 0x70, /* 0x70-0x73 */
+	0xF9, 0x71, 0xF9, 0x72, 0xF9, 0x73, 0xF9, 0x74, /* 0x74-0x77 */
+	0xF9, 0x75, 0xF9, 0x76, 0xF9, 0x77, 0xF9, 0x78, /* 0x78-0x7B */
+	0xF9, 0x79, 0xF9, 0x7A, 0xF9, 0x7B, 0xF9, 0x7C, /* 0x7C-0x7F */
+	
+	0xF9, 0x7D, 0xF9, 0x7E, 0xF9, 0x80, 0xF9, 0x81, /* 0x80-0x83 */
+	0xF9, 0x82, 0xF9, 0x83, 0xF9, 0x84, 0xF9, 0x85, /* 0x84-0x87 */
+	0xF9, 0x86, 0xF9, 0x87, 0xF9, 0x88, 0xF9, 0x89, /* 0x88-0x8B */
+	0xF9, 0x8A, 0xF9, 0x8B, 0xF9, 0x8C, 0xF9, 0x8D, /* 0x8C-0x8F */
+	0xF9, 0x8E, 0xF9, 0x8F, 0xF9, 0x90, 0xF9, 0x91, /* 0x90-0x93 */
+	0xF9, 0x92, 0xF9, 0x93, 0xF9, 0x94, 0xF9, 0x95, /* 0x94-0x97 */
+	0xF9, 0x96, 0xF9, 0x97, 0xF9, 0x98, 0xF9, 0x99, /* 0x98-0x9B */
+	0xF9, 0x9A, 0xF9, 0x9B, 0xF9, 0x9C, 0xF9, 0x9D, /* 0x9C-0x9F */
+	0xF9, 0x9E, 0xF9, 0x9F, 0xF9, 0xA0, 0xFA, 0x40, /* 0xA0-0xA3 */
+	0xFA, 0x41, 0xFA, 0x42, 0xFA, 0x43, 0xFA, 0x44, /* 0xA4-0xA7 */
+	0xFA, 0x45, 0xFA, 0x46, 0xFA, 0x47, 0xFA, 0x48, /* 0xA8-0xAB */
+	0xFA, 0x49, 0xFA, 0x4A, 0xFA, 0x4B, 0xFA, 0x4C, /* 0xAC-0xAF */
+	0xFA, 0x4D, 0xFA, 0x4E, 0xFA, 0x4F, 0xFA, 0x50, /* 0xB0-0xB3 */
+	0xFA, 0x51, 0xFA, 0x52, 0xFA, 0x53, 0xFA, 0x54, /* 0xB4-0xB7 */
+	0xFA, 0x55, 0xFA, 0x56, 0xFA, 0x57, 0xFA, 0x58, /* 0xB8-0xBB */
+	0xFA, 0x59, 0xFA, 0x5A, 0xFA, 0x5B, 0xFA, 0x5C, /* 0xBC-0xBF */
+	0xFA, 0x5D, 0xFA, 0x5E, 0xFA, 0x5F, 0xFA, 0x60, /* 0xC0-0xC3 */
+	0xFA, 0x61, 0xFA, 0x62, 0xFA, 0x63, 0xFA, 0x64, /* 0xC4-0xC7 */
+	0xFA, 0x65, 0xFA, 0x66, 0xFA, 0x67, 0xFA, 0x68, /* 0xC8-0xCB */
+	0xFA, 0x69, 0xFA, 0x6A, 0xFA, 0x6B, 0xFA, 0x6C, /* 0xCC-0xCF */
+	0xFA, 0x6D, 0xFA, 0x6E, 0xFA, 0x6F, 0xFA, 0x70, /* 0xD0-0xD3 */
+	0xFA, 0x71, 0xFA, 0x72, 0xFA, 0x73, 0xFA, 0x74, /* 0xD4-0xD7 */
+	0xFA, 0x75, 0xFA, 0x76, 0xFA, 0x77, 0xFA, 0x78, /* 0xD8-0xDB */
+	0xFA, 0x79, 0xFA, 0x7A, 0xFA, 0x7B, 0xFA, 0x7C, /* 0xDC-0xDF */
+	0xFA, 0x7D, 0xFA, 0x7E, 0xFA, 0x80, 0xFA, 0x81, /* 0xE0-0xE3 */
+	0xFA, 0x82, 0xFA, 0x83, 0xFA, 0x84, 0xFA, 0x85, /* 0xE4-0xE7 */
+	0xFA, 0x86, 0xFA, 0x87, 0xFA, 0x88, 0xFA, 0x89, /* 0xE8-0xEB */
+	0xFA, 0x8A, 0xFA, 0x8B, 0xFA, 0x8C, 0xFA, 0x8D, /* 0xEC-0xEF */
+	0xFA, 0x8E, 0xFA, 0x8F, 0xFA, 0x90, 0xFA, 0x91, /* 0xF0-0xF3 */
+	0xFA, 0x92, 0xFA, 0x93, 0xFA, 0x94, 0xFA, 0x95, /* 0xF4-0xF7 */
+	0xFA, 0x96, 0xFA, 0x97, 0xFA, 0x98, 0xFA, 0x99, /* 0xF8-0xFB */
+	0xFA, 0x9A, 0xFA, 0x9B, 0xFA, 0x9C, 0xFA, 0x9D, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_9E[512] = {
+	0xFA, 0x9E, 0xFA, 0x9F, 0xFA, 0xA0, 0xFB, 0x40, /* 0x00-0x03 */
+	0xFB, 0x41, 0xFB, 0x42, 0xFB, 0x43, 0xFB, 0x44, /* 0x04-0x07 */
+	0xFB, 0x45, 0xFB, 0x46, 0xFB, 0x47, 0xFB, 0x48, /* 0x08-0x0B */
+	0xFB, 0x49, 0xFB, 0x4A, 0xFB, 0x4B, 0xFB, 0x4C, /* 0x0C-0x0F */
+	0xFB, 0x4D, 0xFB, 0x4E, 0xFB, 0x4F, 0xFB, 0x50, /* 0x10-0x13 */
+	0xFB, 0x51, 0xFB, 0x52, 0xFB, 0x53, 0xFB, 0x54, /* 0x14-0x17 */
+	0xFB, 0x55, 0xFB, 0x56, 0xFB, 0x57, 0xFB, 0x58, /* 0x18-0x1B */
+	0xFB, 0x59, 0xFB, 0x5A, 0xFB, 0x5B, 0xC4, 0xF1, /* 0x1C-0x1F */
+	0xF0, 0xAF, 0xBC, 0xA6, 0xF0, 0xB0, 0xC3, 0xF9, /* 0x20-0x23 */
+	0xFB, 0x5C, 0xC5, 0xB8, 0xD1, 0xBB, 0xFB, 0x5D, /* 0x24-0x27 */
+	0xF0, 0xB1, 0xF0, 0xB2, 0xF0, 0xB3, 0xF0, 0xB4, /* 0x28-0x2B */
+	0xF0, 0xB5, 0xD1, 0xBC, 0xFB, 0x5E, 0xD1, 0xEC, /* 0x2C-0x2F */
+	0xFB, 0x5F, 0xF0, 0xB7, 0xF0, 0xB6, 0xD4, 0xA7, /* 0x30-0x33 */
+	0xFB, 0x60, 0xCD, 0xD2, 0xF0, 0xB8, 0xF0, 0xBA, /* 0x34-0x37 */
+	0xF0, 0xB9, 0xF0, 0xBB, 0xF0, 0xBC, 0xFB, 0x61, /* 0x38-0x3B */
+	0xFB, 0x62, 0xB8, 0xEB, 0xF0, 0xBD, 0xBA, 0xE8, /* 0x3C-0x3F */
+	0xFB, 0x63, 0xF0, 0xBE, 0xF0, 0xBF, 0xBE, 0xE9, /* 0x40-0x43 */
+	0xF0, 0xC0, 0xB6, 0xEC, 0xF0, 0xC1, 0xF0, 0xC2, /* 0x44-0x47 */
+	0xF0, 0xC3, 0xF0, 0xC4, 0xC8, 0xB5, 0xF0, 0xC5, /* 0x48-0x4B */
+	0xF0, 0xC6, 0xFB, 0x64, 0xF0, 0xC7, 0xC5, 0xF4, /* 0x4C-0x4F */
+	0xFB, 0x65, 0xF0, 0xC8, 0xFB, 0x66, 0xFB, 0x67, /* 0x50-0x53 */
+	0xFB, 0x68, 0xF0, 0xC9, 0xFB, 0x69, 0xF0, 0xCA, /* 0x54-0x57 */
+	0xF7, 0xBD, 0xFB, 0x6A, 0xF0, 0xCB, 0xF0, 0xCC, /* 0x58-0x5B */
+	0xF0, 0xCD, 0xFB, 0x6B, 0xF0, 0xCE, 0xFB, 0x6C, /* 0x5C-0x5F */
+	0xFB, 0x6D, 0xFB, 0x6E, 0xFB, 0x6F, 0xF0, 0xCF, /* 0x60-0x63 */
+	0xBA, 0xD7, 0xFB, 0x70, 0xF0, 0xD0, 0xF0, 0xD1, /* 0x64-0x67 */
+	0xF0, 0xD2, 0xF0, 0xD3, 0xF0, 0xD4, 0xF0, 0xD5, /* 0x68-0x6B */
+	0xF0, 0xD6, 0xF0, 0xD8, 0xFB, 0x71, 0xFB, 0x72, /* 0x6C-0x6F */
+	0xD3, 0xA5, 0xF0, 0xD7, 0xFB, 0x73, 0xF0, 0xD9, /* 0x70-0x73 */
+	0xFB, 0x74, 0xFB, 0x75, 0xFB, 0x76, 0xFB, 0x77, /* 0x74-0x77 */
+	0xFB, 0x78, 0xFB, 0x79, 0xFB, 0x7A, 0xFB, 0x7B, /* 0x78-0x7B */
+	0xFB, 0x7C, 0xFB, 0x7D, 0xF5, 0xBA, 0xC2, 0xB9, /* 0x7C-0x7F */
+	
+	0xFB, 0x7E, 0xFB, 0x80, 0xF7, 0xE4, 0xFB, 0x81, /* 0x80-0x83 */
+	0xFB, 0x82, 0xFB, 0x83, 0xFB, 0x84, 0xF7, 0xE5, /* 0x84-0x87 */
+	0xF7, 0xE6, 0xFB, 0x85, 0xFB, 0x86, 0xF7, 0xE7, /* 0x88-0x8B */
+	0xFB, 0x87, 0xFB, 0x88, 0xFB, 0x89, 0xFB, 0x8A, /* 0x8C-0x8F */
+	0xFB, 0x8B, 0xFB, 0x8C, 0xF7, 0xE8, 0xC2, 0xB4, /* 0x90-0x93 */
+	0xFB, 0x8D, 0xFB, 0x8E, 0xFB, 0x8F, 0xFB, 0x90, /* 0x94-0x97 */
+	0xFB, 0x91, 0xFB, 0x92, 0xFB, 0x93, 0xFB, 0x94, /* 0x98-0x9B */
+	0xFB, 0x95, 0xF7, 0xEA, 0xFB, 0x96, 0xF7, 0xEB, /* 0x9C-0x9F */
+	0xFB, 0x97, 0xFB, 0x98, 0xFB, 0x99, 0xFB, 0x9A, /* 0xA0-0xA3 */
+	0xFB, 0x9B, 0xFB, 0x9C, 0xC2, 0xF3, 0xFB, 0x9D, /* 0xA4-0xA7 */
+	0xFB, 0x9E, 0xFB, 0x9F, 0xFB, 0xA0, 0xFC, 0x40, /* 0xA8-0xAB */
+	0xFC, 0x41, 0xFC, 0x42, 0xFC, 0x43, 0xFC, 0x44, /* 0xAC-0xAF */
+	0xFC, 0x45, 0xFC, 0x46, 0xFC, 0x47, 0xFC, 0x48, /* 0xB0-0xB3 */
+	0xF4, 0xF0, 0xFC, 0x49, 0xFC, 0x4A, 0xFC, 0x4B, /* 0xB4-0xB7 */
+	0xF4, 0xEF, 0xFC, 0x4C, 0xFC, 0x4D, 0xC2, 0xE9, /* 0xB8-0xBB */
+	0xFC, 0x4E, 0xF7, 0xE1, 0xF7, 0xE2, 0xFC, 0x4F, /* 0xBC-0xBF */
+	0xFC, 0x50, 0xFC, 0x51, 0xFC, 0x52, 0xFC, 0x53, /* 0xC0-0xC3 */
+	0xBB, 0xC6, 0xFC, 0x54, 0xFC, 0x55, 0xFC, 0x56, /* 0xC4-0xC7 */
+	0xFC, 0x57, 0xD9, 0xE4, 0xFC, 0x58, 0xFC, 0x59, /* 0xC8-0xCB */
+	0xFC, 0x5A, 0xCA, 0xF2, 0xC0, 0xE8, 0xF0, 0xA4, /* 0xCC-0xCF */
+	0xFC, 0x5B, 0xBA, 0xDA, 0xFC, 0x5C, 0xFC, 0x5D, /* 0xD0-0xD3 */
+	0xC7, 0xAD, 0xFC, 0x5E, 0xFC, 0x5F, 0xFC, 0x60, /* 0xD4-0xD7 */
+	0xC4, 0xAC, 0xFC, 0x61, 0xFC, 0x62, 0xF7, 0xEC, /* 0xD8-0xDB */
+	0xF7, 0xED, 0xF7, 0xEE, 0xFC, 0x63, 0xF7, 0xF0, /* 0xDC-0xDF */
+	0xF7, 0xEF, 0xFC, 0x64, 0xF7, 0xF1, 0xFC, 0x65, /* 0xE0-0xE3 */
+	0xFC, 0x66, 0xF7, 0xF4, 0xFC, 0x67, 0xF7, 0xF3, /* 0xE4-0xE7 */
+	0xFC, 0x68, 0xF7, 0xF2, 0xF7, 0xF5, 0xFC, 0x69, /* 0xE8-0xEB */
+	0xFC, 0x6A, 0xFC, 0x6B, 0xFC, 0x6C, 0xF7, 0xF6, /* 0xEC-0xEF */
+	0xFC, 0x6D, 0xFC, 0x6E, 0xFC, 0x6F, 0xFC, 0x70, /* 0xF0-0xF3 */
+	0xFC, 0x71, 0xFC, 0x72, 0xFC, 0x73, 0xFC, 0x74, /* 0xF4-0xF7 */
+	0xFC, 0x75, 0xED, 0xE9, 0xFC, 0x76, 0xED, 0xEA, /* 0xF8-0xFB */
+	0xED, 0xEB, 0xFC, 0x77, 0xF6, 0xBC, 0xFC, 0x78, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_9F[512] = {
+	0xFC, 0x79, 0xFC, 0x7A, 0xFC, 0x7B, 0xFC, 0x7C, /* 0x00-0x03 */
+	0xFC, 0x7D, 0xFC, 0x7E, 0xFC, 0x80, 0xFC, 0x81, /* 0x04-0x07 */
+	0xFC, 0x82, 0xFC, 0x83, 0xFC, 0x84, 0xF6, 0xBD, /* 0x08-0x0B */
+	0xFC, 0x85, 0xF6, 0xBE, 0xB6, 0xA6, 0xFC, 0x86, /* 0x0C-0x0F */
+	0xD8, 0xBE, 0xFC, 0x87, 0xFC, 0x88, 0xB9, 0xC4, /* 0x10-0x13 */
+	0xFC, 0x89, 0xFC, 0x8A, 0xFC, 0x8B, 0xD8, 0xBB, /* 0x14-0x17 */
+	0xFC, 0x8C, 0xDC, 0xB1, 0xFC, 0x8D, 0xFC, 0x8E, /* 0x18-0x1B */
+	0xFC, 0x8F, 0xFC, 0x90, 0xFC, 0x91, 0xFC, 0x92, /* 0x1C-0x1F */
+	0xCA, 0xF3, 0xFC, 0x93, 0xF7, 0xF7, 0xFC, 0x94, /* 0x20-0x23 */
+	0xFC, 0x95, 0xFC, 0x96, 0xFC, 0x97, 0xFC, 0x98, /* 0x24-0x27 */
+	0xFC, 0x99, 0xFC, 0x9A, 0xFC, 0x9B, 0xFC, 0x9C, /* 0x28-0x2B */
+	0xF7, 0xF8, 0xFC, 0x9D, 0xFC, 0x9E, 0xF7, 0xF9, /* 0x2C-0x2F */
+	0xFC, 0x9F, 0xFC, 0xA0, 0xFD, 0x40, 0xFD, 0x41, /* 0x30-0x33 */
+	0xFD, 0x42, 0xFD, 0x43, 0xFD, 0x44, 0xF7, 0xFB, /* 0x34-0x37 */
+	0xFD, 0x45, 0xF7, 0xFA, 0xFD, 0x46, 0xB1, 0xC7, /* 0x38-0x3B */
+	0xFD, 0x47, 0xF7, 0xFC, 0xF7, 0xFD, 0xFD, 0x48, /* 0x3C-0x3F */
+	0xFD, 0x49, 0xFD, 0x4A, 0xFD, 0x4B, 0xFD, 0x4C, /* 0x40-0x43 */
+	0xF7, 0xFE, 0xFD, 0x4D, 0xFD, 0x4E, 0xFD, 0x4F, /* 0x44-0x47 */
+	0xFD, 0x50, 0xFD, 0x51, 0xFD, 0x52, 0xFD, 0x53, /* 0x48-0x4B */
+	0xFD, 0x54, 0xFD, 0x55, 0xFD, 0x56, 0xFD, 0x57, /* 0x4C-0x4F */
+	0xC6, 0xEB, 0xEC, 0xB4, 0xFD, 0x58, 0xFD, 0x59, /* 0x50-0x53 */
+	0xFD, 0x5A, 0xFD, 0x5B, 0xFD, 0x5C, 0xFD, 0x5D, /* 0x54-0x57 */
+	0xFD, 0x5E, 0xFD, 0x5F, 0xFD, 0x60, 0xFD, 0x61, /* 0x58-0x5B */
+	0xFD, 0x62, 0xFD, 0x63, 0xFD, 0x64, 0xFD, 0x65, /* 0x5C-0x5F */
+	0xFD, 0x66, 0xFD, 0x67, 0xFD, 0x68, 0xFD, 0x69, /* 0x60-0x63 */
+	0xFD, 0x6A, 0xFD, 0x6B, 0xFD, 0x6C, 0xFD, 0x6D, /* 0x64-0x67 */
+	0xFD, 0x6E, 0xFD, 0x6F, 0xFD, 0x70, 0xFD, 0x71, /* 0x68-0x6B */
+	0xFD, 0x72, 0xFD, 0x73, 0xFD, 0x74, 0xFD, 0x75, /* 0x6C-0x6F */
+	0xFD, 0x76, 0xFD, 0x77, 0xFD, 0x78, 0xFD, 0x79, /* 0x70-0x73 */
+	0xFD, 0x7A, 0xFD, 0x7B, 0xFD, 0x7C, 0xFD, 0x7D, /* 0x74-0x77 */
+	0xFD, 0x7E, 0xFD, 0x80, 0xFD, 0x81, 0xFD, 0x82, /* 0x78-0x7B */
+	0xFD, 0x83, 0xFD, 0x84, 0xFD, 0x85, 0xB3, 0xDD, /* 0x7C-0x7F */
+	
+	0xF6, 0xB3, 0xFD, 0x86, 0xFD, 0x87, 0xF6, 0xB4, /* 0x80-0x83 */
+	0xC1, 0xE4, 0xF6, 0xB5, 0xF6, 0xB6, 0xF6, 0xB7, /* 0x84-0x87 */
+	0xF6, 0xB8, 0xF6, 0xB9, 0xF6, 0xBA, 0xC8, 0xA3, /* 0x88-0x8B */
+	0xF6, 0xBB, 0xFD, 0x88, 0xFD, 0x89, 0xFD, 0x8A, /* 0x8C-0x8F */
+	0xFD, 0x8B, 0xFD, 0x8C, 0xFD, 0x8D, 0xFD, 0x8E, /* 0x90-0x93 */
+	0xFD, 0x8F, 0xFD, 0x90, 0xFD, 0x91, 0xFD, 0x92, /* 0x94-0x97 */
+	0xFD, 0x93, 0xC1, 0xFA, 0xB9, 0xA8, 0xED, 0xE8, /* 0x98-0x9B */
+	0xFD, 0x94, 0xFD, 0x95, 0xFD, 0x96, 0xB9, 0xEA, /* 0x9C-0x9F */
+	0xD9, 0xDF, 0xFD, 0x97, 0xFD, 0x98, 0xFD, 0x99, /* 0xA0-0xA3 */
+	0xFD, 0x9A, 0xFD, 0x9B, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+};
+
+static unsigned char u2c_DC[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+};
+
+static unsigned char u2c_F9[512] = {
+	0xD8, 0x4D, 0xB8, 0xFC, 0xDC, 0x87, 0xD9, 0x5A, /* 0x00-0x03 */
+	0xBB, 0xAC, 0xB4, 0xAE, 0xBE, 0xE4, 0xFD, 0x94, /* 0x04-0x07 */
+	0xFD, 0x94, 0xC6, 0xF5, 0xBD, 0xF0, 0xC0, 0xAE, /* 0x08-0x0B */
+	0xC4, 0xCE, 0x91, 0xD0, 0xB0, 0x5D, 0xC1, 0x5F, /* 0x0C-0x0F */
+	0xCC, 0x7D, 0xC2, 0xDD, 0xC2, 0xE3, 0xDF, 0x89, /* 0x10-0x13 */
+	0x98, 0xB7, 0xC2, 0xE5, 0xC0, 0xD3, 0xE7, 0xF3, /* 0x14-0x17 */
+	0xC2, 0xE4, 0xC0, 0xD2, 0xF1, 0x98, 0x81, 0x79, /* 0x18-0x1B */
+	0xC2, 0xD1, 0x99, 0xDA, 0xA0, 0x80, 0xCC, 0x6D, /* 0x1C-0x1F */
+	0xFB, 0x5B, 0x8D, 0xB9, 0x9E, 0x45, 0xCB, 0x7B, /* 0x20-0x23 */
+	0xD2, 0x68, 0xC0, 0xAD, 0xC5, 0x44, 0xCF, 0x9E, /* 0x24-0x27 */
+	0xC0, 0xC8, 0xC0, 0xCA, 0xC0, 0xCB, 0xC0, 0xC7, /* 0x28-0x2B */
+	0xFD, 0x9C, 0x81, 0xED, 0xC0, 0xE4, 0x84, 0xDA, /* 0x2C-0x2F */
+	0x93, 0xEF, 0x99, 0xA9, 0xA0, 0x74, 0xB1, 0x52, /* 0x30-0x33 */
+	0xC0, 0xCF, 0xCC, 0x4A, 0xCC, 0x94, 0xC2, 0xB7, /* 0x34-0x37 */
+	0xC2, 0xB6, 0xF4, 0x94, 0xFA, 0x98, 0xC2, 0xB5, /* 0x38-0x3B */
+	0xB5, 0x93, 0xBE, 0x47, 0xC7, 0x8A, 0xE4, 0x9B, /* 0x3C-0x3F */
+	0xC2, 0xB9, 0xD5, 0x93, 0x89, 0xC5, 0xC5, 0xAA, /* 0x40-0x43 */
+	0xBB, 0x5C, 0xC3, 0x40, 0xC0, 0xCE, 0xC0, 0xDA, /* 0x44-0x47 */
+	0xD9, 0x54, 0xC0, 0xD7, 0x89, 0xBE, 0x8C, 0xD2, /* 0x48-0x4B */
+	0x98, 0xC7, 0x9C, 0x49, 0xC2, 0xA9, 0xC0, 0xDB, /* 0x4C-0x4F */
+	0xBF, 0x7C, 0xC2, 0xAA, 0xC0, 0xD5, 0xC0, 0xDF, /* 0x50-0x53 */
+	0x84, 0x43, 0xC1, 0xE8, 0xB6, 0xA0, 0xBE, 0x63, /* 0x54-0x57 */
+	0xC1, 0xE2, 0xC1, 0xEA, 0xD7, 0x78, 0x92, 0x82, /* 0x58-0x5B */
+	0x98, 0xB7, 0xD6, 0x5A, 0xB5, 0xA4, 0x8C, 0x8E, /* 0x5C-0x5F */
+	0xC5, 0xAD, 0xC2, 0xCA, 0xAE, 0x90, 0xB1, 0xB1, /* 0x60-0x63 */
+	0xB4, 0x91, 0xB1, 0xE3, 0x8F, 0xCD, 0xB2, 0xBB, /* 0x64-0x67 */
+	0xC3, 0xDA, 0x94, 0xB5, 0xCB, 0xF7, 0x85, 0xA2, /* 0x68-0x6B */
+	0xC8, 0xFB, 0xCA, 0xA1, 0xC8, 0x7E, 0xD5, 0x66, /* 0x6C-0x6F */
+	0x9A, 0xA2, 0xB3, 0xBD, 0xC9, 0xF2, 0xCA, 0xB0, /* 0x70-0x73 */
+	0xC8, 0xF4, 0xC2, 0xD3, 0xC2, 0xD4, 0xC1, 0xC1, /* 0x74-0x77 */
+	0x83, 0xC9, 0xFD, 0x9D, 0xC1, 0xBA, 0xBC, 0x5A, /* 0x78-0x7B */
+	0xC1, 0xBC, 0xD5, 0x8F, 0xC1, 0xBF, 0x84, 0xEE, /* 0x7C-0x7F */
+	
+	0x85, 0xCE, 0xC5, 0xAE, 0x8F, 0x5D, 0xC2, 0xC3, /* 0x80-0x83 */
+	0x9E, 0x56, 0xB5, 0x5A, 0xE9, 0x82, 0xF3, 0x50, /* 0x84-0x87 */
+	0xFB, 0x90, 0xC0, 0xE8, 0xC1, 0xA6, 0x95, 0xD1, /* 0x88-0x8B */
+	0x9A, 0x76, 0xDE, 0x5D, 0xC4, 0xEA, 0x91, 0x7A, /* 0x8C-0x8F */
+	0x91, 0xD9, 0x93, 0xD3, 0x9D, 0x69, 0x9F, 0x92, /* 0x90-0x93 */
+	0xAD, 0x49, 0xFD, 0x9E, 0xBE, 0x9A, 0xC2, 0x93, /* 0x94-0x97 */
+	0xDD, 0x82, 0xC9, 0x8F, 0xDF, 0x42, 0xE5, 0x80, /* 0x98-0x9B */
+	0xC1, 0xD0, 0xC1, 0xD3, 0xD1, 0xCA, 0xC1, 0xD2, /* 0x9C-0x9F */
+	0xC1, 0xD1, 0xD5, 0x66, 0xC1, 0xAE, 0xC4, 0xEE, /* 0xA0-0xA3 */
+	0xC4, 0xED, 0x9A, 0x9A, 0xBA, 0x9F, 0xAB, 0x43, /* 0xA4-0xA7 */
+	0xC1, 0xEE, 0xE0, 0xF2, 0x8C, 0x8E, 0x8E, 0x58, /* 0xA8-0xAB */
+	0xC1, 0xAF, 0xC1, 0xE1, 0xAC, 0x93, 0xC1, 0xE7, /* 0xAC-0xAF */
+	0xF1, 0xF6, 0xE2, 0x8F, 0xC1, 0xE3, 0xEC, 0x60, /* 0xB0-0xB3 */
+	0xEE, 0x49, 0xC0, 0xFD, 0xB6, 0x59, 0xF5, 0xB7, /* 0xB4-0xB7 */
+	0xEB, 0x60, 0x90, 0xBA, 0xC1, 0xCB, 0xC1, 0xC5, /* 0xB8-0xBB */
+	0xE5, 0xBC, 0xC4, 0xF2, 0xC1, 0xCF, 0x98, 0xB7, /* 0xBC-0xBF */
+	0xC1, 0xC7, 0xAF, 0x9F, 0xDE, 0xA4, 0xDF, 0x7C, /* 0xC0-0xC3 */
+	0xFD, 0x88, 0x95, 0x9E, 0xC8, 0xEE, 0x84, 0xA2, /* 0xC4-0xC7 */
+	0x96, 0x83, 0xC1, 0xF8, 0xC1, 0xF7, 0xC1, 0xEF, /* 0xC8-0xCB */
+	0xC1, 0xF0, 0xC1, 0xF4, 0xC1, 0xF2, 0xBC, 0x7E, /* 0xCC-0xCF */
+	0xEE, 0x90, 0xC1, 0xF9, 0xC2, 0xBE, 0xEA, 0x91, /* 0xD0-0xD3 */
+	0x82, 0x90, 0x8D, 0x91, 0x9C, 0x53, 0xDD, 0x86, /* 0xD4-0xD7 */
+	0xC2, 0xC9, 0x90, 0xFC, 0xC0, 0xF5, 0xC2, 0xCA, /* 0xD8-0xDB */
+	0xC2, 0xA1, 0xC0, 0xFB, 0xC0, 0xF4, 0xC2, 0xC4, /* 0xDC-0xDF */
+	0xD2, 0xD7, 0xC0, 0xEE, 0xC0, 0xE6, 0xC4, 0xE0, /* 0xE0-0xE3 */
+	0xC0, 0xED, 0xC1, 0xA1, 0xEE, 0xBE, 0xFD, 0x9F, /* 0xE4-0xE7 */
+	0xD1, 0x65, 0xC0, 0xEF, 0xEB, 0x78, 0xC4, 0xE4, /* 0xE8-0xEB */
+	0xC4, 0xE7, 0xC1, 0xDF, 0x9F, 0xFB, 0xAD, 0x55, /* 0xEC-0xEF */
+	0xCC, 0x41, 0xFD, 0xA0, 0xF7, 0x5B, 0xF7, 0xEB, /* 0xF0-0xF3 */
+	0xC1, 0xD6, 0xC1, 0xDC, 0xC5, 0x52, 0xC1, 0xA2, /* 0xF4-0xF7 */
+	0xF3, 0xD2, 0xC1, 0xA3, 0xA0, 0xEE, 0xD6, 0xCB, /* 0xF8-0xFB */
+	0xD7, 0x52, 0xCA, 0xB2, 0xB2, 0xE8, 0xB4, 0xCC, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_FA[512] = {
+	0xC7, 0xD0, 0xB6, 0xC8, 0xCD, 0xD8, 0xCC, 0xC7, /* 0x00-0x03 */
+	0xD5, 0xAC, 0xB6, 0xB4, 0xB1, 0xA9, 0xDD, 0x97, /* 0x04-0x07 */
+	0xD0, 0xD0, 0xBD, 0xB5, 0xD2, 0x8A, 0xC0, 0xAA, /* 0x08-0x0B */
+	0xFE, 0x40, 0xFE, 0x41, 0xFE, 0x42, 0xFE, 0x43, /* 0x0C-0x0F */
+	0x89, 0x56, 0xFE, 0x44, 0xC7, 0xE7, 0xFE, 0x45, /* 0x10-0x13 */
+	0xFE, 0x46, 0x84, 0x44, 0xD8, 0x69, 0xD2, 0xE6, /* 0x14-0x17 */
+	0xFE, 0x47, 0xC9, 0xF1, 0xCF, 0xE9, 0xB8, 0xA3, /* 0x18-0x1B */
+	0xBE, 0xB8, 0xBE, 0xAB, 0xD3, 0xF0, 0xFE, 0x48, /* 0x1C-0x1F */
+	0xFE, 0x49, 0xFE, 0x4A, 0xD6, 0x54, 0xFE, 0x4B, /* 0x20-0x23 */
+	0xFE, 0x4C, 0xD2, 0xDD, 0xB6, 0xBC, 0xFE, 0x4D, /* 0x24-0x27 */
+	0xFE, 0x4E, 0xFE, 0x4F, 0xEF, 0x88, 0xEF, 0x95, /* 0x28-0x2B */
+	0xF0, 0x5E, 0xFA, 0x51, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+};
+
+static unsigned char u2c_FE[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xA9, 0x55, 0xA6, 0xF2, 0x00, 0x00, 0xA6, 0xF4, /* 0x30-0x33 */
+	0xA6, 0xF5, 0xA6, 0xE0, 0xA6, 0xE1, 0xA6, 0xF0, /* 0x34-0x37 */
+	0xA6, 0xF1, 0xA6, 0xE2, 0xA6, 0xE3, 0xA6, 0xEE, /* 0x38-0x3B */
+	0xA6, 0xEF, 0xA6, 0xE6, 0xA6, 0xE7, 0xA6, 0xE4, /* 0x3C-0x3F */
+	0xA6, 0xE5, 0xA6, 0xE8, 0xA6, 0xE9, 0xA6, 0xEA, /* 0x40-0x43 */
+	0xA6, 0xEB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0xA9, 0x68, 0xA9, 0x69, 0xA9, 0x6A, /* 0x48-0x4B */
+	0xA9, 0x6B, 0xA9, 0x6C, 0xA9, 0x6D, 0xA9, 0x6E, /* 0x4C-0x4F */
+	0xA9, 0x6F, 0xA9, 0x70, 0xA9, 0x71, 0x00, 0x00, /* 0x50-0x53 */
+	0xA9, 0x72, 0xA9, 0x73, 0xA9, 0x74, 0xA9, 0x75, /* 0x54-0x57 */
+	0x00, 0x00, 0xA9, 0x76, 0xA9, 0x77, 0xA9, 0x78, /* 0x58-0x5B */
+	0xA9, 0x79, 0xA9, 0x7A, 0xA9, 0x7B, 0xA9, 0x7C, /* 0x5C-0x5F */
+	0xA9, 0x7D, 0xA9, 0x7E, 0xA9, 0x80, 0xA9, 0x81, /* 0x60-0x63 */
+	0xA9, 0x82, 0xA9, 0x83, 0xA9, 0x84, 0x00, 0x00, /* 0x64-0x67 */
+	0xA9, 0x85, 0xA9, 0x86, 0xA9, 0x87, 0xA9, 0x88, /* 0x68-0x6B */
+};
+
+static unsigned char u2c_FF[512] = {
+	0x00, 0x00, 0xA3, 0xA1, 0xA3, 0xA2, 0xA3, 0xA3, /* 0x00-0x03 */
+	0xA1, 0xE7, 0xA3, 0xA5, 0xA3, 0xA6, 0xA3, 0xA7, /* 0x04-0x07 */
+	0xA3, 0xA8, 0xA3, 0xA9, 0xA3, 0xAA, 0xA3, 0xAB, /* 0x08-0x0B */
+	0xA3, 0xAC, 0xA3, 0xAD, 0xA3, 0xAE, 0xA3, 0xAF, /* 0x0C-0x0F */
+	0xA3, 0xB0, 0xA3, 0xB1, 0xA3, 0xB2, 0xA3, 0xB3, /* 0x10-0x13 */
+	0xA3, 0xB4, 0xA3, 0xB5, 0xA3, 0xB6, 0xA3, 0xB7, /* 0x14-0x17 */
+	0xA3, 0xB8, 0xA3, 0xB9, 0xA3, 0xBA, 0xA3, 0xBB, /* 0x18-0x1B */
+	0xA3, 0xBC, 0xA3, 0xBD, 0xA3, 0xBE, 0xA3, 0xBF, /* 0x1C-0x1F */
+	0xA3, 0xC0, 0xA3, 0xC1, 0xA3, 0xC2, 0xA3, 0xC3, /* 0x20-0x23 */
+	0xA3, 0xC4, 0xA3, 0xC5, 0xA3, 0xC6, 0xA3, 0xC7, /* 0x24-0x27 */
+	0xA3, 0xC8, 0xA3, 0xC9, 0xA3, 0xCA, 0xA3, 0xCB, /* 0x28-0x2B */
+	0xA3, 0xCC, 0xA3, 0xCD, 0xA3, 0xCE, 0xA3, 0xCF, /* 0x2C-0x2F */
+	0xA3, 0xD0, 0xA3, 0xD1, 0xA3, 0xD2, 0xA3, 0xD3, /* 0x30-0x33 */
+	0xA3, 0xD4, 0xA3, 0xD5, 0xA3, 0xD6, 0xA3, 0xD7, /* 0x34-0x37 */
+	0xA3, 0xD8, 0xA3, 0xD9, 0xA3, 0xDA, 0xA3, 0xDB, /* 0x38-0x3B */
+	0xA3, 0xDC, 0xA3, 0xDD, 0xA3, 0xDE, 0xA3, 0xDF, /* 0x3C-0x3F */
+	0xA3, 0xE0, 0xA3, 0xE1, 0xA3, 0xE2, 0xA3, 0xE3, /* 0x40-0x43 */
+	0xA3, 0xE4, 0xA3, 0xE5, 0xA3, 0xE6, 0xA3, 0xE7, /* 0x44-0x47 */
+	0xA3, 0xE8, 0xA3, 0xE9, 0xA3, 0xEA, 0xA3, 0xEB, /* 0x48-0x4B */
+	0xA3, 0xEC, 0xA3, 0xED, 0xA3, 0xEE, 0xA3, 0xEF, /* 0x4C-0x4F */
+	0xA3, 0xF0, 0xA3, 0xF1, 0xA3, 0xF2, 0xA3, 0xF3, /* 0x50-0x53 */
+	0xA3, 0xF4, 0xA3, 0xF5, 0xA3, 0xF6, 0xA3, 0xF7, /* 0x54-0x57 */
+	0xA3, 0xF8, 0xA3, 0xF9, 0xA3, 0xFA, 0xA3, 0xFB, /* 0x58-0x5B */
+	0xA3, 0xFC, 0xA3, 0xFD, 0xA1, 0xAB, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0xA1, 0xE9, 0xA1, 0xEA, 0xA9, 0x56, 0xA3, 0xFE, /* 0xE0-0xE3 */
+	0xA9, 0x57, 0xA3, 0xA4, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	NULL,   u2c_01, u2c_02, u2c_03, u2c_04, NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	u2c_20, u2c_21, u2c_22, u2c_23, u2c_24, u2c_25, u2c_26, NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	u2c_30, u2c_31, u2c_32, u2c_33, NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   u2c_4E, u2c_4F, 
+	u2c_50, u2c_51, u2c_52, u2c_53, u2c_54, u2c_55, u2c_56, u2c_57, 
+	u2c_58, u2c_59, u2c_5A, u2c_5B, u2c_5C, u2c_5D, u2c_5E, u2c_5F, 
+	u2c_60, u2c_61, u2c_62, u2c_63, u2c_64, u2c_65, u2c_66, u2c_67, 
+	u2c_68, u2c_69, u2c_6A, u2c_6B, u2c_6C, u2c_6D, u2c_6E, u2c_6F, 
+	u2c_70, u2c_71, u2c_72, u2c_73, u2c_74, u2c_75, u2c_76, u2c_77, 
+	u2c_78, u2c_79, u2c_7A, u2c_7B, u2c_7C, u2c_7D, u2c_7E, u2c_7F, 
+	u2c_80, u2c_81, u2c_82, u2c_83, u2c_84, u2c_85, u2c_86, u2c_87, 
+	u2c_88, u2c_89, u2c_8A, u2c_8B, u2c_8C, u2c_8D, u2c_8E, u2c_8F, 
+	u2c_90, u2c_91, u2c_92, u2c_93, u2c_94, u2c_95, u2c_96, u2c_97, 
+	u2c_98, u2c_99, u2c_9A, u2c_9B, u2c_9C, u2c_9D, u2c_9E, u2c_9F, 
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   u2c_DC, NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   u2c_F9, u2c_FA, NULL,   NULL,   NULL,   u2c_FE, u2c_FF, };
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(const wchar_t uni,
+			unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni&0xFF;
+	unsigned char ch = (uni>>8)&0xFF;
+	int n;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset) {
+		if (boundlen <= 1)
+			return -ENAMETOOLONG;
+		out[0] = uni2charset[cl*2];
+		out[1] = uni2charset[cl*2+1];
+		if (out[0] == 0x00 && out[1] == 0x00)
+			return -EINVAL;
+		n = 2;
+	} else if (ch==0 && cl) {
+		out[0] = cl;
+		n = 1;
+	}
+	else
+		return -EINVAL;
+
+	return n;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen,
+			wchar_t *uni)
+{
+	unsigned char ch, cl;
+	wchar_t *charset2uni;
+	int n;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	if (boundlen == 1) {
+		*uni = rawstring[0];
+		return 1;
+	}
+
+	ch = rawstring[0];
+	cl = rawstring[1];
+
+	charset2uni = page_charset2uni[ch];
+	if (charset2uni && cl) {
+		*uni = charset2uni[cl];
+		if (*uni == 0x0000)
+			return -EINVAL;
+		n = 2;
+	} else{
+		*uni = ch;
+		n = 1;
+	}
+	return n;
+}
+
+static struct nls_table table = {
+	"cp936",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_cp936(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_cp936(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_cp936)
+module_exit(exit_nls_cp936)
+MODULE_LICENSE("Dual BSD/GPL");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ *
+---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
diff --git a/fs/nls/nls_cp949.c b/fs/nls/nls_cp949.c
new file mode 100644
index 00000000000000..5e06469f8f4390
--- /dev/null
+++ b/fs/nls/nls_cp949.c
@@ -0,0 +1,13962 @@
+/*
+ * linux/fs/nls_cp949.c
+ *
+ * Charset cp949 translation tables.
+ * This translation table was generated automatically, the
+ * original table can be download from the Microsoft website.
+ * (http://www.microsoft.com/typography/unicode/unicodecp.htm)
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t c2u_81[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xAC02,0xAC03,0xAC05,0xAC06,0xAC0B,0xAC0C,0xAC0D,/* 0x40-0x47 */
+	0xAC0E,0xAC0F,0xAC18,0xAC1E,0xAC1F,0xAC21,0xAC22,0xAC23,/* 0x48-0x4F */
+	0xAC25,0xAC26,0xAC27,0xAC28,0xAC29,0xAC2A,0xAC2B,0xAC2E,/* 0x50-0x57 */
+	0xAC32,0xAC33,0xAC34,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xAC35,0xAC36,0xAC37,0xAC3A,0xAC3B,0xAC3D,0xAC3E,/* 0x60-0x67 */
+	0xAC3F,0xAC41,0xAC42,0xAC43,0xAC44,0xAC45,0xAC46,0xAC47,/* 0x68-0x6F */
+	0xAC48,0xAC49,0xAC4A,0xAC4C,0xAC4E,0xAC4F,0xAC50,0xAC51,/* 0x70-0x77 */
+	0xAC52,0xAC53,0xAC55,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xAC56,0xAC57,0xAC59,0xAC5A,0xAC5B,0xAC5D,0xAC5E,/* 0x80-0x87 */
+	0xAC5F,0xAC60,0xAC61,0xAC62,0xAC63,0xAC64,0xAC65,0xAC66,/* 0x88-0x8F */
+	0xAC67,0xAC68,0xAC69,0xAC6A,0xAC6B,0xAC6C,0xAC6D,0xAC6E,/* 0x90-0x97 */
+	0xAC6F,0xAC72,0xAC73,0xAC75,0xAC76,0xAC79,0xAC7B,0xAC7C,/* 0x98-0x9F */
+	0xAC7D,0xAC7E,0xAC7F,0xAC82,0xAC87,0xAC88,0xAC8D,0xAC8E,/* 0xA0-0xA7 */
+	0xAC8F,0xAC91,0xAC92,0xAC93,0xAC95,0xAC96,0xAC97,0xAC98,/* 0xA8-0xAF */
+	0xAC99,0xAC9A,0xAC9B,0xAC9E,0xACA2,0xACA3,0xACA4,0xACA5,/* 0xB0-0xB7 */
+	0xACA6,0xACA7,0xACAB,0xACAD,0xACAE,0xACB1,0xACB2,0xACB3,/* 0xB8-0xBF */
+	0xACB4,0xACB5,0xACB6,0xACB7,0xACBA,0xACBE,0xACBF,0xACC0,/* 0xC0-0xC7 */
+	0xACC2,0xACC3,0xACC5,0xACC6,0xACC7,0xACC9,0xACCA,0xACCB,/* 0xC8-0xCF */
+	0xACCD,0xACCE,0xACCF,0xACD0,0xACD1,0xACD2,0xACD3,0xACD4,/* 0xD0-0xD7 */
+	0xACD6,0xACD8,0xACD9,0xACDA,0xACDB,0xACDC,0xACDD,0xACDE,/* 0xD8-0xDF */
+	0xACDF,0xACE2,0xACE3,0xACE5,0xACE6,0xACE9,0xACEB,0xACED,/* 0xE0-0xE7 */
+	0xACEE,0xACF2,0xACF4,0xACF7,0xACF8,0xACF9,0xACFA,0xACFB,/* 0xE8-0xEF */
+	0xACFE,0xACFF,0xAD01,0xAD02,0xAD03,0xAD05,0xAD07,0xAD08,/* 0xF0-0xF7 */
+	0xAD09,0xAD0A,0xAD0B,0xAD0E,0xAD10,0xAD12,0xAD13,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_82[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xAD14,0xAD15,0xAD16,0xAD17,0xAD19,0xAD1A,0xAD1B,/* 0x40-0x47 */
+	0xAD1D,0xAD1E,0xAD1F,0xAD21,0xAD22,0xAD23,0xAD24,0xAD25,/* 0x48-0x4F */
+	0xAD26,0xAD27,0xAD28,0xAD2A,0xAD2B,0xAD2E,0xAD2F,0xAD30,/* 0x50-0x57 */
+	0xAD31,0xAD32,0xAD33,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xAD36,0xAD37,0xAD39,0xAD3A,0xAD3B,0xAD3D,0xAD3E,/* 0x60-0x67 */
+	0xAD3F,0xAD40,0xAD41,0xAD42,0xAD43,0xAD46,0xAD48,0xAD4A,/* 0x68-0x6F */
+	0xAD4B,0xAD4C,0xAD4D,0xAD4E,0xAD4F,0xAD51,0xAD52,0xAD53,/* 0x70-0x77 */
+	0xAD55,0xAD56,0xAD57,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xAD59,0xAD5A,0xAD5B,0xAD5C,0xAD5D,0xAD5E,0xAD5F,/* 0x80-0x87 */
+	0xAD60,0xAD62,0xAD64,0xAD65,0xAD66,0xAD67,0xAD68,0xAD69,/* 0x88-0x8F */
+	0xAD6A,0xAD6B,0xAD6E,0xAD6F,0xAD71,0xAD72,0xAD77,0xAD78,/* 0x90-0x97 */
+	0xAD79,0xAD7A,0xAD7E,0xAD80,0xAD83,0xAD84,0xAD85,0xAD86,/* 0x98-0x9F */
+	0xAD87,0xAD8A,0xAD8B,0xAD8D,0xAD8E,0xAD8F,0xAD91,0xAD92,/* 0xA0-0xA7 */
+	0xAD93,0xAD94,0xAD95,0xAD96,0xAD97,0xAD98,0xAD99,0xAD9A,/* 0xA8-0xAF */
+	0xAD9B,0xAD9E,0xAD9F,0xADA0,0xADA1,0xADA2,0xADA3,0xADA5,/* 0xB0-0xB7 */
+	0xADA6,0xADA7,0xADA8,0xADA9,0xADAA,0xADAB,0xADAC,0xADAD,/* 0xB8-0xBF */
+	0xADAE,0xADAF,0xADB0,0xADB1,0xADB2,0xADB3,0xADB4,0xADB5,/* 0xC0-0xC7 */
+	0xADB6,0xADB8,0xADB9,0xADBA,0xADBB,0xADBC,0xADBD,0xADBE,/* 0xC8-0xCF */
+	0xADBF,0xADC2,0xADC3,0xADC5,0xADC6,0xADC7,0xADC9,0xADCA,/* 0xD0-0xD7 */
+	0xADCB,0xADCC,0xADCD,0xADCE,0xADCF,0xADD2,0xADD4,0xADD5,/* 0xD8-0xDF */
+	0xADD6,0xADD7,0xADD8,0xADD9,0xADDA,0xADDB,0xADDD,0xADDE,/* 0xE0-0xE7 */
+	0xADDF,0xADE1,0xADE2,0xADE3,0xADE5,0xADE6,0xADE7,0xADE8,/* 0xE8-0xEF */
+	0xADE9,0xADEA,0xADEB,0xADEC,0xADED,0xADEE,0xADEF,0xADF0,/* 0xF0-0xF7 */
+	0xADF1,0xADF2,0xADF3,0xADF4,0xADF5,0xADF6,0xADF7,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_83[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xADFA,0xADFB,0xADFD,0xADFE,0xAE02,0xAE03,0xAE04,/* 0x40-0x47 */
+	0xAE05,0xAE06,0xAE07,0xAE0A,0xAE0C,0xAE0E,0xAE0F,0xAE10,/* 0x48-0x4F */
+	0xAE11,0xAE12,0xAE13,0xAE15,0xAE16,0xAE17,0xAE18,0xAE19,/* 0x50-0x57 */
+	0xAE1A,0xAE1B,0xAE1C,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xAE1D,0xAE1E,0xAE1F,0xAE20,0xAE21,0xAE22,0xAE23,/* 0x60-0x67 */
+	0xAE24,0xAE25,0xAE26,0xAE27,0xAE28,0xAE29,0xAE2A,0xAE2B,/* 0x68-0x6F */
+	0xAE2C,0xAE2D,0xAE2E,0xAE2F,0xAE32,0xAE33,0xAE35,0xAE36,/* 0x70-0x77 */
+	0xAE39,0xAE3B,0xAE3C,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xAE3D,0xAE3E,0xAE3F,0xAE42,0xAE44,0xAE47,0xAE48,/* 0x80-0x87 */
+	0xAE49,0xAE4B,0xAE4F,0xAE51,0xAE52,0xAE53,0xAE55,0xAE57,/* 0x88-0x8F */
+	0xAE58,0xAE59,0xAE5A,0xAE5B,0xAE5E,0xAE62,0xAE63,0xAE64,/* 0x90-0x97 */
+	0xAE66,0xAE67,0xAE6A,0xAE6B,0xAE6D,0xAE6E,0xAE6F,0xAE71,/* 0x98-0x9F */
+	0xAE72,0xAE73,0xAE74,0xAE75,0xAE76,0xAE77,0xAE7A,0xAE7E,/* 0xA0-0xA7 */
+	0xAE7F,0xAE80,0xAE81,0xAE82,0xAE83,0xAE86,0xAE87,0xAE88,/* 0xA8-0xAF */
+	0xAE89,0xAE8A,0xAE8B,0xAE8D,0xAE8E,0xAE8F,0xAE90,0xAE91,/* 0xB0-0xB7 */
+	0xAE92,0xAE93,0xAE94,0xAE95,0xAE96,0xAE97,0xAE98,0xAE99,/* 0xB8-0xBF */
+	0xAE9A,0xAE9B,0xAE9C,0xAE9D,0xAE9E,0xAE9F,0xAEA0,0xAEA1,/* 0xC0-0xC7 */
+	0xAEA2,0xAEA3,0xAEA4,0xAEA5,0xAEA6,0xAEA7,0xAEA8,0xAEA9,/* 0xC8-0xCF */
+	0xAEAA,0xAEAB,0xAEAC,0xAEAD,0xAEAE,0xAEAF,0xAEB0,0xAEB1,/* 0xD0-0xD7 */
+	0xAEB2,0xAEB3,0xAEB4,0xAEB5,0xAEB6,0xAEB7,0xAEB8,0xAEB9,/* 0xD8-0xDF */
+	0xAEBA,0xAEBB,0xAEBF,0xAEC1,0xAEC2,0xAEC3,0xAEC5,0xAEC6,/* 0xE0-0xE7 */
+	0xAEC7,0xAEC8,0xAEC9,0xAECA,0xAECB,0xAECE,0xAED2,0xAED3,/* 0xE8-0xEF */
+	0xAED4,0xAED5,0xAED6,0xAED7,0xAEDA,0xAEDB,0xAEDD,0xAEDE,/* 0xF0-0xF7 */
+	0xAEDF,0xAEE0,0xAEE1,0xAEE2,0xAEE3,0xAEE4,0xAEE5,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_84[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xAEE6,0xAEE7,0xAEE9,0xAEEA,0xAEEC,0xAEEE,0xAEEF,/* 0x40-0x47 */
+	0xAEF0,0xAEF1,0xAEF2,0xAEF3,0xAEF5,0xAEF6,0xAEF7,0xAEF9,/* 0x48-0x4F */
+	0xAEFA,0xAEFB,0xAEFD,0xAEFE,0xAEFF,0xAF00,0xAF01,0xAF02,/* 0x50-0x57 */
+	0xAF03,0xAF04,0xAF05,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xAF06,0xAF09,0xAF0A,0xAF0B,0xAF0C,0xAF0E,0xAF0F,/* 0x60-0x67 */
+	0xAF11,0xAF12,0xAF13,0xAF14,0xAF15,0xAF16,0xAF17,0xAF18,/* 0x68-0x6F */
+	0xAF19,0xAF1A,0xAF1B,0xAF1C,0xAF1D,0xAF1E,0xAF1F,0xAF20,/* 0x70-0x77 */
+	0xAF21,0xAF22,0xAF23,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xAF24,0xAF25,0xAF26,0xAF27,0xAF28,0xAF29,0xAF2A,/* 0x80-0x87 */
+	0xAF2B,0xAF2E,0xAF2F,0xAF31,0xAF33,0xAF35,0xAF36,0xAF37,/* 0x88-0x8F */
+	0xAF38,0xAF39,0xAF3A,0xAF3B,0xAF3E,0xAF40,0xAF44,0xAF45,/* 0x90-0x97 */
+	0xAF46,0xAF47,0xAF4A,0xAF4B,0xAF4C,0xAF4D,0xAF4E,0xAF4F,/* 0x98-0x9F */
+	0xAF51,0xAF52,0xAF53,0xAF54,0xAF55,0xAF56,0xAF57,0xAF58,/* 0xA0-0xA7 */
+	0xAF59,0xAF5A,0xAF5B,0xAF5E,0xAF5F,0xAF60,0xAF61,0xAF62,/* 0xA8-0xAF */
+	0xAF63,0xAF66,0xAF67,0xAF68,0xAF69,0xAF6A,0xAF6B,0xAF6C,/* 0xB0-0xB7 */
+	0xAF6D,0xAF6E,0xAF6F,0xAF70,0xAF71,0xAF72,0xAF73,0xAF74,/* 0xB8-0xBF */
+	0xAF75,0xAF76,0xAF77,0xAF78,0xAF7A,0xAF7B,0xAF7C,0xAF7D,/* 0xC0-0xC7 */
+	0xAF7E,0xAF7F,0xAF81,0xAF82,0xAF83,0xAF85,0xAF86,0xAF87,/* 0xC8-0xCF */
+	0xAF89,0xAF8A,0xAF8B,0xAF8C,0xAF8D,0xAF8E,0xAF8F,0xAF92,/* 0xD0-0xD7 */
+	0xAF93,0xAF94,0xAF96,0xAF97,0xAF98,0xAF99,0xAF9A,0xAF9B,/* 0xD8-0xDF */
+	0xAF9D,0xAF9E,0xAF9F,0xAFA0,0xAFA1,0xAFA2,0xAFA3,0xAFA4,/* 0xE0-0xE7 */
+	0xAFA5,0xAFA6,0xAFA7,0xAFA8,0xAFA9,0xAFAA,0xAFAB,0xAFAC,/* 0xE8-0xEF */
+	0xAFAD,0xAFAE,0xAFAF,0xAFB0,0xAFB1,0xAFB2,0xAFB3,0xAFB4,/* 0xF0-0xF7 */
+	0xAFB5,0xAFB6,0xAFB7,0xAFBA,0xAFBB,0xAFBD,0xAFBE,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_85[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xAFBF,0xAFC1,0xAFC2,0xAFC3,0xAFC4,0xAFC5,0xAFC6,/* 0x40-0x47 */
+	0xAFCA,0xAFCC,0xAFCF,0xAFD0,0xAFD1,0xAFD2,0xAFD3,0xAFD5,/* 0x48-0x4F */
+	0xAFD6,0xAFD7,0xAFD8,0xAFD9,0xAFDA,0xAFDB,0xAFDD,0xAFDE,/* 0x50-0x57 */
+	0xAFDF,0xAFE0,0xAFE1,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xAFE2,0xAFE3,0xAFE4,0xAFE5,0xAFE6,0xAFE7,0xAFEA,/* 0x60-0x67 */
+	0xAFEB,0xAFEC,0xAFED,0xAFEE,0xAFEF,0xAFF2,0xAFF3,0xAFF5,/* 0x68-0x6F */
+	0xAFF6,0xAFF7,0xAFF9,0xAFFA,0xAFFB,0xAFFC,0xAFFD,0xAFFE,/* 0x70-0x77 */
+	0xAFFF,0xB002,0xB003,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xB005,0xB006,0xB007,0xB008,0xB009,0xB00A,0xB00B,/* 0x80-0x87 */
+	0xB00D,0xB00E,0xB00F,0xB011,0xB012,0xB013,0xB015,0xB016,/* 0x88-0x8F */
+	0xB017,0xB018,0xB019,0xB01A,0xB01B,0xB01E,0xB01F,0xB020,/* 0x90-0x97 */
+	0xB021,0xB022,0xB023,0xB024,0xB025,0xB026,0xB027,0xB029,/* 0x98-0x9F */
+	0xB02A,0xB02B,0xB02C,0xB02D,0xB02E,0xB02F,0xB030,0xB031,/* 0xA0-0xA7 */
+	0xB032,0xB033,0xB034,0xB035,0xB036,0xB037,0xB038,0xB039,/* 0xA8-0xAF */
+	0xB03A,0xB03B,0xB03C,0xB03D,0xB03E,0xB03F,0xB040,0xB041,/* 0xB0-0xB7 */
+	0xB042,0xB043,0xB046,0xB047,0xB049,0xB04B,0xB04D,0xB04F,/* 0xB8-0xBF */
+	0xB050,0xB051,0xB052,0xB056,0xB058,0xB05A,0xB05B,0xB05C,/* 0xC0-0xC7 */
+	0xB05E,0xB05F,0xB060,0xB061,0xB062,0xB063,0xB064,0xB065,/* 0xC8-0xCF */
+	0xB066,0xB067,0xB068,0xB069,0xB06A,0xB06B,0xB06C,0xB06D,/* 0xD0-0xD7 */
+	0xB06E,0xB06F,0xB070,0xB071,0xB072,0xB073,0xB074,0xB075,/* 0xD8-0xDF */
+	0xB076,0xB077,0xB078,0xB079,0xB07A,0xB07B,0xB07E,0xB07F,/* 0xE0-0xE7 */
+	0xB081,0xB082,0xB083,0xB085,0xB086,0xB087,0xB088,0xB089,/* 0xE8-0xEF */
+	0xB08A,0xB08B,0xB08E,0xB090,0xB092,0xB093,0xB094,0xB095,/* 0xF0-0xF7 */
+	0xB096,0xB097,0xB09B,0xB09D,0xB09E,0xB0A3,0xB0A4,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_86[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xB0A5,0xB0A6,0xB0A7,0xB0AA,0xB0B0,0xB0B2,0xB0B6,/* 0x40-0x47 */
+	0xB0B7,0xB0B9,0xB0BA,0xB0BB,0xB0BD,0xB0BE,0xB0BF,0xB0C0,/* 0x48-0x4F */
+	0xB0C1,0xB0C2,0xB0C3,0xB0C6,0xB0CA,0xB0CB,0xB0CC,0xB0CD,/* 0x50-0x57 */
+	0xB0CE,0xB0CF,0xB0D2,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xB0D3,0xB0D5,0xB0D6,0xB0D7,0xB0D9,0xB0DA,0xB0DB,/* 0x60-0x67 */
+	0xB0DC,0xB0DD,0xB0DE,0xB0DF,0xB0E1,0xB0E2,0xB0E3,0xB0E4,/* 0x68-0x6F */
+	0xB0E6,0xB0E7,0xB0E8,0xB0E9,0xB0EA,0xB0EB,0xB0EC,0xB0ED,/* 0x70-0x77 */
+	0xB0EE,0xB0EF,0xB0F0,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xB0F1,0xB0F2,0xB0F3,0xB0F4,0xB0F5,0xB0F6,0xB0F7,/* 0x80-0x87 */
+	0xB0F8,0xB0F9,0xB0FA,0xB0FB,0xB0FC,0xB0FD,0xB0FE,0xB0FF,/* 0x88-0x8F */
+	0xB100,0xB101,0xB102,0xB103,0xB104,0xB105,0xB106,0xB107,/* 0x90-0x97 */
+	0xB10A,0xB10D,0xB10E,0xB10F,0xB111,0xB114,0xB115,0xB116,/* 0x98-0x9F */
+	0xB117,0xB11A,0xB11E,0xB11F,0xB120,0xB121,0xB122,0xB126,/* 0xA0-0xA7 */
+	0xB127,0xB129,0xB12A,0xB12B,0xB12D,0xB12E,0xB12F,0xB130,/* 0xA8-0xAF */
+	0xB131,0xB132,0xB133,0xB136,0xB13A,0xB13B,0xB13C,0xB13D,/* 0xB0-0xB7 */
+	0xB13E,0xB13F,0xB142,0xB143,0xB145,0xB146,0xB147,0xB149,/* 0xB8-0xBF */
+	0xB14A,0xB14B,0xB14C,0xB14D,0xB14E,0xB14F,0xB152,0xB153,/* 0xC0-0xC7 */
+	0xB156,0xB157,0xB159,0xB15A,0xB15B,0xB15D,0xB15E,0xB15F,/* 0xC8-0xCF */
+	0xB161,0xB162,0xB163,0xB164,0xB165,0xB166,0xB167,0xB168,/* 0xD0-0xD7 */
+	0xB169,0xB16A,0xB16B,0xB16C,0xB16D,0xB16E,0xB16F,0xB170,/* 0xD8-0xDF */
+	0xB171,0xB172,0xB173,0xB174,0xB175,0xB176,0xB177,0xB17A,/* 0xE0-0xE7 */
+	0xB17B,0xB17D,0xB17E,0xB17F,0xB181,0xB183,0xB184,0xB185,/* 0xE8-0xEF */
+	0xB186,0xB187,0xB18A,0xB18C,0xB18E,0xB18F,0xB190,0xB191,/* 0xF0-0xF7 */
+	0xB195,0xB196,0xB197,0xB199,0xB19A,0xB19B,0xB19D,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_87[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xB19E,0xB19F,0xB1A0,0xB1A1,0xB1A2,0xB1A3,0xB1A4,/* 0x40-0x47 */
+	0xB1A5,0xB1A6,0xB1A7,0xB1A9,0xB1AA,0xB1AB,0xB1AC,0xB1AD,/* 0x48-0x4F */
+	0xB1AE,0xB1AF,0xB1B0,0xB1B1,0xB1B2,0xB1B3,0xB1B4,0xB1B5,/* 0x50-0x57 */
+	0xB1B6,0xB1B7,0xB1B8,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xB1B9,0xB1BA,0xB1BB,0xB1BC,0xB1BD,0xB1BE,0xB1BF,/* 0x60-0x67 */
+	0xB1C0,0xB1C1,0xB1C2,0xB1C3,0xB1C4,0xB1C5,0xB1C6,0xB1C7,/* 0x68-0x6F */
+	0xB1C8,0xB1C9,0xB1CA,0xB1CB,0xB1CD,0xB1CE,0xB1CF,0xB1D1,/* 0x70-0x77 */
+	0xB1D2,0xB1D3,0xB1D5,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xB1D6,0xB1D7,0xB1D8,0xB1D9,0xB1DA,0xB1DB,0xB1DE,/* 0x80-0x87 */
+	0xB1E0,0xB1E1,0xB1E2,0xB1E3,0xB1E4,0xB1E5,0xB1E6,0xB1E7,/* 0x88-0x8F */
+	0xB1EA,0xB1EB,0xB1ED,0xB1EE,0xB1EF,0xB1F1,0xB1F2,0xB1F3,/* 0x90-0x97 */
+	0xB1F4,0xB1F5,0xB1F6,0xB1F7,0xB1F8,0xB1FA,0xB1FC,0xB1FE,/* 0x98-0x9F */
+	0xB1FF,0xB200,0xB201,0xB202,0xB203,0xB206,0xB207,0xB209,/* 0xA0-0xA7 */
+	0xB20A,0xB20D,0xB20E,0xB20F,0xB210,0xB211,0xB212,0xB213,/* 0xA8-0xAF */
+	0xB216,0xB218,0xB21A,0xB21B,0xB21C,0xB21D,0xB21E,0xB21F,/* 0xB0-0xB7 */
+	0xB221,0xB222,0xB223,0xB224,0xB225,0xB226,0xB227,0xB228,/* 0xB8-0xBF */
+	0xB229,0xB22A,0xB22B,0xB22C,0xB22D,0xB22E,0xB22F,0xB230,/* 0xC0-0xC7 */
+	0xB231,0xB232,0xB233,0xB235,0xB236,0xB237,0xB238,0xB239,/* 0xC8-0xCF */
+	0xB23A,0xB23B,0xB23D,0xB23E,0xB23F,0xB240,0xB241,0xB242,/* 0xD0-0xD7 */
+	0xB243,0xB244,0xB245,0xB246,0xB247,0xB248,0xB249,0xB24A,/* 0xD8-0xDF */
+	0xB24B,0xB24C,0xB24D,0xB24E,0xB24F,0xB250,0xB251,0xB252,/* 0xE0-0xE7 */
+	0xB253,0xB254,0xB255,0xB256,0xB257,0xB259,0xB25A,0xB25B,/* 0xE8-0xEF */
+	0xB25D,0xB25E,0xB25F,0xB261,0xB262,0xB263,0xB264,0xB265,/* 0xF0-0xF7 */
+	0xB266,0xB267,0xB26A,0xB26B,0xB26C,0xB26D,0xB26E,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_88[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xB26F,0xB270,0xB271,0xB272,0xB273,0xB276,0xB277,/* 0x40-0x47 */
+	0xB278,0xB279,0xB27A,0xB27B,0xB27D,0xB27E,0xB27F,0xB280,/* 0x48-0x4F */
+	0xB281,0xB282,0xB283,0xB286,0xB287,0xB288,0xB28A,0xB28B,/* 0x50-0x57 */
+	0xB28C,0xB28D,0xB28E,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xB28F,0xB292,0xB293,0xB295,0xB296,0xB297,0xB29B,/* 0x60-0x67 */
+	0xB29C,0xB29D,0xB29E,0xB29F,0xB2A2,0xB2A4,0xB2A7,0xB2A8,/* 0x68-0x6F */
+	0xB2A9,0xB2AB,0xB2AD,0xB2AE,0xB2AF,0xB2B1,0xB2B2,0xB2B3,/* 0x70-0x77 */
+	0xB2B5,0xB2B6,0xB2B7,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xB2B8,0xB2B9,0xB2BA,0xB2BB,0xB2BC,0xB2BD,0xB2BE,/* 0x80-0x87 */
+	0xB2BF,0xB2C0,0xB2C1,0xB2C2,0xB2C3,0xB2C4,0xB2C5,0xB2C6,/* 0x88-0x8F */
+	0xB2C7,0xB2CA,0xB2CB,0xB2CD,0xB2CE,0xB2CF,0xB2D1,0xB2D3,/* 0x90-0x97 */
+	0xB2D4,0xB2D5,0xB2D6,0xB2D7,0xB2DA,0xB2DC,0xB2DE,0xB2DF,/* 0x98-0x9F */
+	0xB2E0,0xB2E1,0xB2E3,0xB2E7,0xB2E9,0xB2EA,0xB2F0,0xB2F1,/* 0xA0-0xA7 */
+	0xB2F2,0xB2F6,0xB2FC,0xB2FD,0xB2FE,0xB302,0xB303,0xB305,/* 0xA8-0xAF */
+	0xB306,0xB307,0xB309,0xB30A,0xB30B,0xB30C,0xB30D,0xB30E,/* 0xB0-0xB7 */
+	0xB30F,0xB312,0xB316,0xB317,0xB318,0xB319,0xB31A,0xB31B,/* 0xB8-0xBF */
+	0xB31D,0xB31E,0xB31F,0xB320,0xB321,0xB322,0xB323,0xB324,/* 0xC0-0xC7 */
+	0xB325,0xB326,0xB327,0xB328,0xB329,0xB32A,0xB32B,0xB32C,/* 0xC8-0xCF */
+	0xB32D,0xB32E,0xB32F,0xB330,0xB331,0xB332,0xB333,0xB334,/* 0xD0-0xD7 */
+	0xB335,0xB336,0xB337,0xB338,0xB339,0xB33A,0xB33B,0xB33C,/* 0xD8-0xDF */
+	0xB33D,0xB33E,0xB33F,0xB340,0xB341,0xB342,0xB343,0xB344,/* 0xE0-0xE7 */
+	0xB345,0xB346,0xB347,0xB348,0xB349,0xB34A,0xB34B,0xB34C,/* 0xE8-0xEF */
+	0xB34D,0xB34E,0xB34F,0xB350,0xB351,0xB352,0xB353,0xB357,/* 0xF0-0xF7 */
+	0xB359,0xB35A,0xB35D,0xB360,0xB361,0xB362,0xB363,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_89[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xB366,0xB368,0xB36A,0xB36C,0xB36D,0xB36F,0xB372,/* 0x40-0x47 */
+	0xB373,0xB375,0xB376,0xB377,0xB379,0xB37A,0xB37B,0xB37C,/* 0x48-0x4F */
+	0xB37D,0xB37E,0xB37F,0xB382,0xB386,0xB387,0xB388,0xB389,/* 0x50-0x57 */
+	0xB38A,0xB38B,0xB38D,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xB38E,0xB38F,0xB391,0xB392,0xB393,0xB395,0xB396,/* 0x60-0x67 */
+	0xB397,0xB398,0xB399,0xB39A,0xB39B,0xB39C,0xB39D,0xB39E,/* 0x68-0x6F */
+	0xB39F,0xB3A2,0xB3A3,0xB3A4,0xB3A5,0xB3A6,0xB3A7,0xB3A9,/* 0x70-0x77 */
+	0xB3AA,0xB3AB,0xB3AD,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xB3AE,0xB3AF,0xB3B0,0xB3B1,0xB3B2,0xB3B3,0xB3B4,/* 0x80-0x87 */
+	0xB3B5,0xB3B6,0xB3B7,0xB3B8,0xB3B9,0xB3BA,0xB3BB,0xB3BC,/* 0x88-0x8F */
+	0xB3BD,0xB3BE,0xB3BF,0xB3C0,0xB3C1,0xB3C2,0xB3C3,0xB3C6,/* 0x90-0x97 */
+	0xB3C7,0xB3C9,0xB3CA,0xB3CD,0xB3CF,0xB3D1,0xB3D2,0xB3D3,/* 0x98-0x9F */
+	0xB3D6,0xB3D8,0xB3DA,0xB3DC,0xB3DE,0xB3DF,0xB3E1,0xB3E2,/* 0xA0-0xA7 */
+	0xB3E3,0xB3E5,0xB3E6,0xB3E7,0xB3E9,0xB3EA,0xB3EB,0xB3EC,/* 0xA8-0xAF */
+	0xB3ED,0xB3EE,0xB3EF,0xB3F0,0xB3F1,0xB3F2,0xB3F3,0xB3F4,/* 0xB0-0xB7 */
+	0xB3F5,0xB3F6,0xB3F7,0xB3F8,0xB3F9,0xB3FA,0xB3FB,0xB3FD,/* 0xB8-0xBF */
+	0xB3FE,0xB3FF,0xB400,0xB401,0xB402,0xB403,0xB404,0xB405,/* 0xC0-0xC7 */
+	0xB406,0xB407,0xB408,0xB409,0xB40A,0xB40B,0xB40C,0xB40D,/* 0xC8-0xCF */
+	0xB40E,0xB40F,0xB411,0xB412,0xB413,0xB414,0xB415,0xB416,/* 0xD0-0xD7 */
+	0xB417,0xB419,0xB41A,0xB41B,0xB41D,0xB41E,0xB41F,0xB421,/* 0xD8-0xDF */
+	0xB422,0xB423,0xB424,0xB425,0xB426,0xB427,0xB42A,0xB42C,/* 0xE0-0xE7 */
+	0xB42D,0xB42E,0xB42F,0xB430,0xB431,0xB432,0xB433,0xB435,/* 0xE8-0xEF */
+	0xB436,0xB437,0xB438,0xB439,0xB43A,0xB43B,0xB43C,0xB43D,/* 0xF0-0xF7 */
+	0xB43E,0xB43F,0xB440,0xB441,0xB442,0xB443,0xB444,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_8A[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xB445,0xB446,0xB447,0xB448,0xB449,0xB44A,0xB44B,/* 0x40-0x47 */
+	0xB44C,0xB44D,0xB44E,0xB44F,0xB452,0xB453,0xB455,0xB456,/* 0x48-0x4F */
+	0xB457,0xB459,0xB45A,0xB45B,0xB45C,0xB45D,0xB45E,0xB45F,/* 0x50-0x57 */
+	0xB462,0xB464,0xB466,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xB467,0xB468,0xB469,0xB46A,0xB46B,0xB46D,0xB46E,/* 0x60-0x67 */
+	0xB46F,0xB470,0xB471,0xB472,0xB473,0xB474,0xB475,0xB476,/* 0x68-0x6F */
+	0xB477,0xB478,0xB479,0xB47A,0xB47B,0xB47C,0xB47D,0xB47E,/* 0x70-0x77 */
+	0xB47F,0xB481,0xB482,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xB483,0xB484,0xB485,0xB486,0xB487,0xB489,0xB48A,/* 0x80-0x87 */
+	0xB48B,0xB48C,0xB48D,0xB48E,0xB48F,0xB490,0xB491,0xB492,/* 0x88-0x8F */
+	0xB493,0xB494,0xB495,0xB496,0xB497,0xB498,0xB499,0xB49A,/* 0x90-0x97 */
+	0xB49B,0xB49C,0xB49E,0xB49F,0xB4A0,0xB4A1,0xB4A2,0xB4A3,/* 0x98-0x9F */
+	0xB4A5,0xB4A6,0xB4A7,0xB4A9,0xB4AA,0xB4AB,0xB4AD,0xB4AE,/* 0xA0-0xA7 */
+	0xB4AF,0xB4B0,0xB4B1,0xB4B2,0xB4B3,0xB4B4,0xB4B6,0xB4B8,/* 0xA8-0xAF */
+	0xB4BA,0xB4BB,0xB4BC,0xB4BD,0xB4BE,0xB4BF,0xB4C1,0xB4C2,/* 0xB0-0xB7 */
+	0xB4C3,0xB4C5,0xB4C6,0xB4C7,0xB4C9,0xB4CA,0xB4CB,0xB4CC,/* 0xB8-0xBF */
+	0xB4CD,0xB4CE,0xB4CF,0xB4D1,0xB4D2,0xB4D3,0xB4D4,0xB4D6,/* 0xC0-0xC7 */
+	0xB4D7,0xB4D8,0xB4D9,0xB4DA,0xB4DB,0xB4DE,0xB4DF,0xB4E1,/* 0xC8-0xCF */
+	0xB4E2,0xB4E5,0xB4E7,0xB4E8,0xB4E9,0xB4EA,0xB4EB,0xB4EE,/* 0xD0-0xD7 */
+	0xB4F0,0xB4F2,0xB4F3,0xB4F4,0xB4F5,0xB4F6,0xB4F7,0xB4F9,/* 0xD8-0xDF */
+	0xB4FA,0xB4FB,0xB4FC,0xB4FD,0xB4FE,0xB4FF,0xB500,0xB501,/* 0xE0-0xE7 */
+	0xB502,0xB503,0xB504,0xB505,0xB506,0xB507,0xB508,0xB509,/* 0xE8-0xEF */
+	0xB50A,0xB50B,0xB50C,0xB50D,0xB50E,0xB50F,0xB510,0xB511,/* 0xF0-0xF7 */
+	0xB512,0xB513,0xB516,0xB517,0xB519,0xB51A,0xB51D,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_8B[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xB51E,0xB51F,0xB520,0xB521,0xB522,0xB523,0xB526,/* 0x40-0x47 */
+	0xB52B,0xB52C,0xB52D,0xB52E,0xB52F,0xB532,0xB533,0xB535,/* 0x48-0x4F */
+	0xB536,0xB537,0xB539,0xB53A,0xB53B,0xB53C,0xB53D,0xB53E,/* 0x50-0x57 */
+	0xB53F,0xB542,0xB546,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xB547,0xB548,0xB549,0xB54A,0xB54E,0xB54F,0xB551,/* 0x60-0x67 */
+	0xB552,0xB553,0xB555,0xB556,0xB557,0xB558,0xB559,0xB55A,/* 0x68-0x6F */
+	0xB55B,0xB55E,0xB562,0xB563,0xB564,0xB565,0xB566,0xB567,/* 0x70-0x77 */
+	0xB568,0xB569,0xB56A,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xB56B,0xB56C,0xB56D,0xB56E,0xB56F,0xB570,0xB571,/* 0x80-0x87 */
+	0xB572,0xB573,0xB574,0xB575,0xB576,0xB577,0xB578,0xB579,/* 0x88-0x8F */
+	0xB57A,0xB57B,0xB57C,0xB57D,0xB57E,0xB57F,0xB580,0xB581,/* 0x90-0x97 */
+	0xB582,0xB583,0xB584,0xB585,0xB586,0xB587,0xB588,0xB589,/* 0x98-0x9F */
+	0xB58A,0xB58B,0xB58C,0xB58D,0xB58E,0xB58F,0xB590,0xB591,/* 0xA0-0xA7 */
+	0xB592,0xB593,0xB594,0xB595,0xB596,0xB597,0xB598,0xB599,/* 0xA8-0xAF */
+	0xB59A,0xB59B,0xB59C,0xB59D,0xB59E,0xB59F,0xB5A2,0xB5A3,/* 0xB0-0xB7 */
+	0xB5A5,0xB5A6,0xB5A7,0xB5A9,0xB5AC,0xB5AD,0xB5AE,0xB5AF,/* 0xB8-0xBF */
+	0xB5B2,0xB5B6,0xB5B7,0xB5B8,0xB5B9,0xB5BA,0xB5BE,0xB5BF,/* 0xC0-0xC7 */
+	0xB5C1,0xB5C2,0xB5C3,0xB5C5,0xB5C6,0xB5C7,0xB5C8,0xB5C9,/* 0xC8-0xCF */
+	0xB5CA,0xB5CB,0xB5CE,0xB5D2,0xB5D3,0xB5D4,0xB5D5,0xB5D6,/* 0xD0-0xD7 */
+	0xB5D7,0xB5D9,0xB5DA,0xB5DB,0xB5DC,0xB5DD,0xB5DE,0xB5DF,/* 0xD8-0xDF */
+	0xB5E0,0xB5E1,0xB5E2,0xB5E3,0xB5E4,0xB5E5,0xB5E6,0xB5E7,/* 0xE0-0xE7 */
+	0xB5E8,0xB5E9,0xB5EA,0xB5EB,0xB5ED,0xB5EE,0xB5EF,0xB5F0,/* 0xE8-0xEF */
+	0xB5F1,0xB5F2,0xB5F3,0xB5F4,0xB5F5,0xB5F6,0xB5F7,0xB5F8,/* 0xF0-0xF7 */
+	0xB5F9,0xB5FA,0xB5FB,0xB5FC,0xB5FD,0xB5FE,0xB5FF,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_8C[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xB600,0xB601,0xB602,0xB603,0xB604,0xB605,0xB606,/* 0x40-0x47 */
+	0xB607,0xB608,0xB609,0xB60A,0xB60B,0xB60C,0xB60D,0xB60E,/* 0x48-0x4F */
+	0xB60F,0xB612,0xB613,0xB615,0xB616,0xB617,0xB619,0xB61A,/* 0x50-0x57 */
+	0xB61B,0xB61C,0xB61D,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xB61E,0xB61F,0xB620,0xB621,0xB622,0xB623,0xB624,/* 0x60-0x67 */
+	0xB626,0xB627,0xB628,0xB629,0xB62A,0xB62B,0xB62D,0xB62E,/* 0x68-0x6F */
+	0xB62F,0xB630,0xB631,0xB632,0xB633,0xB635,0xB636,0xB637,/* 0x70-0x77 */
+	0xB638,0xB639,0xB63A,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xB63B,0xB63C,0xB63D,0xB63E,0xB63F,0xB640,0xB641,/* 0x80-0x87 */
+	0xB642,0xB643,0xB644,0xB645,0xB646,0xB647,0xB649,0xB64A,/* 0x88-0x8F */
+	0xB64B,0xB64C,0xB64D,0xB64E,0xB64F,0xB650,0xB651,0xB652,/* 0x90-0x97 */
+	0xB653,0xB654,0xB655,0xB656,0xB657,0xB658,0xB659,0xB65A,/* 0x98-0x9F */
+	0xB65B,0xB65C,0xB65D,0xB65E,0xB65F,0xB660,0xB661,0xB662,/* 0xA0-0xA7 */
+	0xB663,0xB665,0xB666,0xB667,0xB669,0xB66A,0xB66B,0xB66C,/* 0xA8-0xAF */
+	0xB66D,0xB66E,0xB66F,0xB670,0xB671,0xB672,0xB673,0xB674,/* 0xB0-0xB7 */
+	0xB675,0xB676,0xB677,0xB678,0xB679,0xB67A,0xB67B,0xB67C,/* 0xB8-0xBF */
+	0xB67D,0xB67E,0xB67F,0xB680,0xB681,0xB682,0xB683,0xB684,/* 0xC0-0xC7 */
+	0xB685,0xB686,0xB687,0xB688,0xB689,0xB68A,0xB68B,0xB68C,/* 0xC8-0xCF */
+	0xB68D,0xB68E,0xB68F,0xB690,0xB691,0xB692,0xB693,0xB694,/* 0xD0-0xD7 */
+	0xB695,0xB696,0xB697,0xB698,0xB699,0xB69A,0xB69B,0xB69E,/* 0xD8-0xDF */
+	0xB69F,0xB6A1,0xB6A2,0xB6A3,0xB6A5,0xB6A6,0xB6A7,0xB6A8,/* 0xE0-0xE7 */
+	0xB6A9,0xB6AA,0xB6AD,0xB6AE,0xB6AF,0xB6B0,0xB6B2,0xB6B3,/* 0xE8-0xEF */
+	0xB6B4,0xB6B5,0xB6B6,0xB6B7,0xB6B8,0xB6B9,0xB6BA,0xB6BB,/* 0xF0-0xF7 */
+	0xB6BC,0xB6BD,0xB6BE,0xB6BF,0xB6C0,0xB6C1,0xB6C2,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_8D[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xB6C3,0xB6C4,0xB6C5,0xB6C6,0xB6C7,0xB6C8,0xB6C9,/* 0x40-0x47 */
+	0xB6CA,0xB6CB,0xB6CC,0xB6CD,0xB6CE,0xB6CF,0xB6D0,0xB6D1,/* 0x48-0x4F */
+	0xB6D2,0xB6D3,0xB6D5,0xB6D6,0xB6D7,0xB6D8,0xB6D9,0xB6DA,/* 0x50-0x57 */
+	0xB6DB,0xB6DC,0xB6DD,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xB6DE,0xB6DF,0xB6E0,0xB6E1,0xB6E2,0xB6E3,0xB6E4,/* 0x60-0x67 */
+	0xB6E5,0xB6E6,0xB6E7,0xB6E8,0xB6E9,0xB6EA,0xB6EB,0xB6EC,/* 0x68-0x6F */
+	0xB6ED,0xB6EE,0xB6EF,0xB6F1,0xB6F2,0xB6F3,0xB6F5,0xB6F6,/* 0x70-0x77 */
+	0xB6F7,0xB6F9,0xB6FA,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xB6FB,0xB6FC,0xB6FD,0xB6FE,0xB6FF,0xB702,0xB703,/* 0x80-0x87 */
+	0xB704,0xB706,0xB707,0xB708,0xB709,0xB70A,0xB70B,0xB70C,/* 0x88-0x8F */
+	0xB70D,0xB70E,0xB70F,0xB710,0xB711,0xB712,0xB713,0xB714,/* 0x90-0x97 */
+	0xB715,0xB716,0xB717,0xB718,0xB719,0xB71A,0xB71B,0xB71C,/* 0x98-0x9F */
+	0xB71D,0xB71E,0xB71F,0xB720,0xB721,0xB722,0xB723,0xB724,/* 0xA0-0xA7 */
+	0xB725,0xB726,0xB727,0xB72A,0xB72B,0xB72D,0xB72E,0xB731,/* 0xA8-0xAF */
+	0xB732,0xB733,0xB734,0xB735,0xB736,0xB737,0xB73A,0xB73C,/* 0xB0-0xB7 */
+	0xB73D,0xB73E,0xB73F,0xB740,0xB741,0xB742,0xB743,0xB745,/* 0xB8-0xBF */
+	0xB746,0xB747,0xB749,0xB74A,0xB74B,0xB74D,0xB74E,0xB74F,/* 0xC0-0xC7 */
+	0xB750,0xB751,0xB752,0xB753,0xB756,0xB757,0xB758,0xB759,/* 0xC8-0xCF */
+	0xB75A,0xB75B,0xB75C,0xB75D,0xB75E,0xB75F,0xB761,0xB762,/* 0xD0-0xD7 */
+	0xB763,0xB765,0xB766,0xB767,0xB769,0xB76A,0xB76B,0xB76C,/* 0xD8-0xDF */
+	0xB76D,0xB76E,0xB76F,0xB772,0xB774,0xB776,0xB777,0xB778,/* 0xE0-0xE7 */
+	0xB779,0xB77A,0xB77B,0xB77E,0xB77F,0xB781,0xB782,0xB783,/* 0xE8-0xEF */
+	0xB785,0xB786,0xB787,0xB788,0xB789,0xB78A,0xB78B,0xB78E,/* 0xF0-0xF7 */
+	0xB793,0xB794,0xB795,0xB79A,0xB79B,0xB79D,0xB79E,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_8E[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xB79F,0xB7A1,0xB7A2,0xB7A3,0xB7A4,0xB7A5,0xB7A6,/* 0x40-0x47 */
+	0xB7A7,0xB7AA,0xB7AE,0xB7AF,0xB7B0,0xB7B1,0xB7B2,0xB7B3,/* 0x48-0x4F */
+	0xB7B6,0xB7B7,0xB7B9,0xB7BA,0xB7BB,0xB7BC,0xB7BD,0xB7BE,/* 0x50-0x57 */
+	0xB7BF,0xB7C0,0xB7C1,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xB7C2,0xB7C3,0xB7C4,0xB7C5,0xB7C6,0xB7C8,0xB7CA,/* 0x60-0x67 */
+	0xB7CB,0xB7CC,0xB7CD,0xB7CE,0xB7CF,0xB7D0,0xB7D1,0xB7D2,/* 0x68-0x6F */
+	0xB7D3,0xB7D4,0xB7D5,0xB7D6,0xB7D7,0xB7D8,0xB7D9,0xB7DA,/* 0x70-0x77 */
+	0xB7DB,0xB7DC,0xB7DD,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xB7DE,0xB7DF,0xB7E0,0xB7E1,0xB7E2,0xB7E3,0xB7E4,/* 0x80-0x87 */
+	0xB7E5,0xB7E6,0xB7E7,0xB7E8,0xB7E9,0xB7EA,0xB7EB,0xB7EE,/* 0x88-0x8F */
+	0xB7EF,0xB7F1,0xB7F2,0xB7F3,0xB7F5,0xB7F6,0xB7F7,0xB7F8,/* 0x90-0x97 */
+	0xB7F9,0xB7FA,0xB7FB,0xB7FE,0xB802,0xB803,0xB804,0xB805,/* 0x98-0x9F */
+	0xB806,0xB80A,0xB80B,0xB80D,0xB80E,0xB80F,0xB811,0xB812,/* 0xA0-0xA7 */
+	0xB813,0xB814,0xB815,0xB816,0xB817,0xB81A,0xB81C,0xB81E,/* 0xA8-0xAF */
+	0xB81F,0xB820,0xB821,0xB822,0xB823,0xB826,0xB827,0xB829,/* 0xB0-0xB7 */
+	0xB82A,0xB82B,0xB82D,0xB82E,0xB82F,0xB830,0xB831,0xB832,/* 0xB8-0xBF */
+	0xB833,0xB836,0xB83A,0xB83B,0xB83C,0xB83D,0xB83E,0xB83F,/* 0xC0-0xC7 */
+	0xB841,0xB842,0xB843,0xB845,0xB846,0xB847,0xB848,0xB849,/* 0xC8-0xCF */
+	0xB84A,0xB84B,0xB84C,0xB84D,0xB84E,0xB84F,0xB850,0xB852,/* 0xD0-0xD7 */
+	0xB854,0xB855,0xB856,0xB857,0xB858,0xB859,0xB85A,0xB85B,/* 0xD8-0xDF */
+	0xB85E,0xB85F,0xB861,0xB862,0xB863,0xB865,0xB866,0xB867,/* 0xE0-0xE7 */
+	0xB868,0xB869,0xB86A,0xB86B,0xB86E,0xB870,0xB872,0xB873,/* 0xE8-0xEF */
+	0xB874,0xB875,0xB876,0xB877,0xB879,0xB87A,0xB87B,0xB87D,/* 0xF0-0xF7 */
+	0xB87E,0xB87F,0xB880,0xB881,0xB882,0xB883,0xB884,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_8F[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xB885,0xB886,0xB887,0xB888,0xB889,0xB88A,0xB88B,/* 0x40-0x47 */
+	0xB88C,0xB88E,0xB88F,0xB890,0xB891,0xB892,0xB893,0xB894,/* 0x48-0x4F */
+	0xB895,0xB896,0xB897,0xB898,0xB899,0xB89A,0xB89B,0xB89C,/* 0x50-0x57 */
+	0xB89D,0xB89E,0xB89F,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xB8A0,0xB8A1,0xB8A2,0xB8A3,0xB8A4,0xB8A5,0xB8A6,/* 0x60-0x67 */
+	0xB8A7,0xB8A9,0xB8AA,0xB8AB,0xB8AC,0xB8AD,0xB8AE,0xB8AF,/* 0x68-0x6F */
+	0xB8B1,0xB8B2,0xB8B3,0xB8B5,0xB8B6,0xB8B7,0xB8B9,0xB8BA,/* 0x70-0x77 */
+	0xB8BB,0xB8BC,0xB8BD,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xB8BE,0xB8BF,0xB8C2,0xB8C4,0xB8C6,0xB8C7,0xB8C8,/* 0x80-0x87 */
+	0xB8C9,0xB8CA,0xB8CB,0xB8CD,0xB8CE,0xB8CF,0xB8D1,0xB8D2,/* 0x88-0x8F */
+	0xB8D3,0xB8D5,0xB8D6,0xB8D7,0xB8D8,0xB8D9,0xB8DA,0xB8DB,/* 0x90-0x97 */
+	0xB8DC,0xB8DE,0xB8E0,0xB8E2,0xB8E3,0xB8E4,0xB8E5,0xB8E6,/* 0x98-0x9F */
+	0xB8E7,0xB8EA,0xB8EB,0xB8ED,0xB8EE,0xB8EF,0xB8F1,0xB8F2,/* 0xA0-0xA7 */
+	0xB8F3,0xB8F4,0xB8F5,0xB8F6,0xB8F7,0xB8FA,0xB8FC,0xB8FE,/* 0xA8-0xAF */
+	0xB8FF,0xB900,0xB901,0xB902,0xB903,0xB905,0xB906,0xB907,/* 0xB0-0xB7 */
+	0xB908,0xB909,0xB90A,0xB90B,0xB90C,0xB90D,0xB90E,0xB90F,/* 0xB8-0xBF */
+	0xB910,0xB911,0xB912,0xB913,0xB914,0xB915,0xB916,0xB917,/* 0xC0-0xC7 */
+	0xB919,0xB91A,0xB91B,0xB91C,0xB91D,0xB91E,0xB91F,0xB921,/* 0xC8-0xCF */
+	0xB922,0xB923,0xB924,0xB925,0xB926,0xB927,0xB928,0xB929,/* 0xD0-0xD7 */
+	0xB92A,0xB92B,0xB92C,0xB92D,0xB92E,0xB92F,0xB930,0xB931,/* 0xD8-0xDF */
+	0xB932,0xB933,0xB934,0xB935,0xB936,0xB937,0xB938,0xB939,/* 0xE0-0xE7 */
+	0xB93A,0xB93B,0xB93E,0xB93F,0xB941,0xB942,0xB943,0xB945,/* 0xE8-0xEF */
+	0xB946,0xB947,0xB948,0xB949,0xB94A,0xB94B,0xB94D,0xB94E,/* 0xF0-0xF7 */
+	0xB950,0xB952,0xB953,0xB954,0xB955,0xB956,0xB957,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_90[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xB95A,0xB95B,0xB95D,0xB95E,0xB95F,0xB961,0xB962,/* 0x40-0x47 */
+	0xB963,0xB964,0xB965,0xB966,0xB967,0xB96A,0xB96C,0xB96E,/* 0x48-0x4F */
+	0xB96F,0xB970,0xB971,0xB972,0xB973,0xB976,0xB977,0xB979,/* 0x50-0x57 */
+	0xB97A,0xB97B,0xB97D,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xB97E,0xB97F,0xB980,0xB981,0xB982,0xB983,0xB986,/* 0x60-0x67 */
+	0xB988,0xB98B,0xB98C,0xB98F,0xB990,0xB991,0xB992,0xB993,/* 0x68-0x6F */
+	0xB994,0xB995,0xB996,0xB997,0xB998,0xB999,0xB99A,0xB99B,/* 0x70-0x77 */
+	0xB99C,0xB99D,0xB99E,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xB99F,0xB9A0,0xB9A1,0xB9A2,0xB9A3,0xB9A4,0xB9A5,/* 0x80-0x87 */
+	0xB9A6,0xB9A7,0xB9A8,0xB9A9,0xB9AA,0xB9AB,0xB9AE,0xB9AF,/* 0x88-0x8F */
+	0xB9B1,0xB9B2,0xB9B3,0xB9B5,0xB9B6,0xB9B7,0xB9B8,0xB9B9,/* 0x90-0x97 */
+	0xB9BA,0xB9BB,0xB9BE,0xB9C0,0xB9C2,0xB9C3,0xB9C4,0xB9C5,/* 0x98-0x9F */
+	0xB9C6,0xB9C7,0xB9CA,0xB9CB,0xB9CD,0xB9D3,0xB9D4,0xB9D5,/* 0xA0-0xA7 */
+	0xB9D6,0xB9D7,0xB9DA,0xB9DC,0xB9DF,0xB9E0,0xB9E2,0xB9E6,/* 0xA8-0xAF */
+	0xB9E7,0xB9E9,0xB9EA,0xB9EB,0xB9ED,0xB9EE,0xB9EF,0xB9F0,/* 0xB0-0xB7 */
+	0xB9F1,0xB9F2,0xB9F3,0xB9F6,0xB9FB,0xB9FC,0xB9FD,0xB9FE,/* 0xB8-0xBF */
+	0xB9FF,0xBA02,0xBA03,0xBA04,0xBA05,0xBA06,0xBA07,0xBA09,/* 0xC0-0xC7 */
+	0xBA0A,0xBA0B,0xBA0C,0xBA0D,0xBA0E,0xBA0F,0xBA10,0xBA11,/* 0xC8-0xCF */
+	0xBA12,0xBA13,0xBA14,0xBA16,0xBA17,0xBA18,0xBA19,0xBA1A,/* 0xD0-0xD7 */
+	0xBA1B,0xBA1C,0xBA1D,0xBA1E,0xBA1F,0xBA20,0xBA21,0xBA22,/* 0xD8-0xDF */
+	0xBA23,0xBA24,0xBA25,0xBA26,0xBA27,0xBA28,0xBA29,0xBA2A,/* 0xE0-0xE7 */
+	0xBA2B,0xBA2C,0xBA2D,0xBA2E,0xBA2F,0xBA30,0xBA31,0xBA32,/* 0xE8-0xEF */
+	0xBA33,0xBA34,0xBA35,0xBA36,0xBA37,0xBA3A,0xBA3B,0xBA3D,/* 0xF0-0xF7 */
+	0xBA3E,0xBA3F,0xBA41,0xBA43,0xBA44,0xBA45,0xBA46,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_91[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xBA47,0xBA4A,0xBA4C,0xBA4F,0xBA50,0xBA51,0xBA52,/* 0x40-0x47 */
+	0xBA56,0xBA57,0xBA59,0xBA5A,0xBA5B,0xBA5D,0xBA5E,0xBA5F,/* 0x48-0x4F */
+	0xBA60,0xBA61,0xBA62,0xBA63,0xBA66,0xBA6A,0xBA6B,0xBA6C,/* 0x50-0x57 */
+	0xBA6D,0xBA6E,0xBA6F,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xBA72,0xBA73,0xBA75,0xBA76,0xBA77,0xBA79,0xBA7A,/* 0x60-0x67 */
+	0xBA7B,0xBA7C,0xBA7D,0xBA7E,0xBA7F,0xBA80,0xBA81,0xBA82,/* 0x68-0x6F */
+	0xBA86,0xBA88,0xBA89,0xBA8A,0xBA8B,0xBA8D,0xBA8E,0xBA8F,/* 0x70-0x77 */
+	0xBA90,0xBA91,0xBA92,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xBA93,0xBA94,0xBA95,0xBA96,0xBA97,0xBA98,0xBA99,/* 0x80-0x87 */
+	0xBA9A,0xBA9B,0xBA9C,0xBA9D,0xBA9E,0xBA9F,0xBAA0,0xBAA1,/* 0x88-0x8F */
+	0xBAA2,0xBAA3,0xBAA4,0xBAA5,0xBAA6,0xBAA7,0xBAAA,0xBAAD,/* 0x90-0x97 */
+	0xBAAE,0xBAAF,0xBAB1,0xBAB3,0xBAB4,0xBAB5,0xBAB6,0xBAB7,/* 0x98-0x9F */
+	0xBABA,0xBABC,0xBABE,0xBABF,0xBAC0,0xBAC1,0xBAC2,0xBAC3,/* 0xA0-0xA7 */
+	0xBAC5,0xBAC6,0xBAC7,0xBAC9,0xBACA,0xBACB,0xBACC,0xBACD,/* 0xA8-0xAF */
+	0xBACE,0xBACF,0xBAD0,0xBAD1,0xBAD2,0xBAD3,0xBAD4,0xBAD5,/* 0xB0-0xB7 */
+	0xBAD6,0xBAD7,0xBADA,0xBADB,0xBADC,0xBADD,0xBADE,0xBADF,/* 0xB8-0xBF */
+	0xBAE0,0xBAE1,0xBAE2,0xBAE3,0xBAE4,0xBAE5,0xBAE6,0xBAE7,/* 0xC0-0xC7 */
+	0xBAE8,0xBAE9,0xBAEA,0xBAEB,0xBAEC,0xBAED,0xBAEE,0xBAEF,/* 0xC8-0xCF */
+	0xBAF0,0xBAF1,0xBAF2,0xBAF3,0xBAF4,0xBAF5,0xBAF6,0xBAF7,/* 0xD0-0xD7 */
+	0xBAF8,0xBAF9,0xBAFA,0xBAFB,0xBAFD,0xBAFE,0xBAFF,0xBB01,/* 0xD8-0xDF */
+	0xBB02,0xBB03,0xBB05,0xBB06,0xBB07,0xBB08,0xBB09,0xBB0A,/* 0xE0-0xE7 */
+	0xBB0B,0xBB0C,0xBB0E,0xBB10,0xBB12,0xBB13,0xBB14,0xBB15,/* 0xE8-0xEF */
+	0xBB16,0xBB17,0xBB19,0xBB1A,0xBB1B,0xBB1D,0xBB1E,0xBB1F,/* 0xF0-0xF7 */
+	0xBB21,0xBB22,0xBB23,0xBB24,0xBB25,0xBB26,0xBB27,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_92[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xBB28,0xBB2A,0xBB2C,0xBB2D,0xBB2E,0xBB2F,0xBB30,/* 0x40-0x47 */
+	0xBB31,0xBB32,0xBB33,0xBB37,0xBB39,0xBB3A,0xBB3F,0xBB40,/* 0x48-0x4F */
+	0xBB41,0xBB42,0xBB43,0xBB46,0xBB48,0xBB4A,0xBB4B,0xBB4C,/* 0x50-0x57 */
+	0xBB4E,0xBB51,0xBB52,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xBB53,0xBB55,0xBB56,0xBB57,0xBB59,0xBB5A,0xBB5B,/* 0x60-0x67 */
+	0xBB5C,0xBB5D,0xBB5E,0xBB5F,0xBB60,0xBB62,0xBB64,0xBB65,/* 0x68-0x6F */
+	0xBB66,0xBB67,0xBB68,0xBB69,0xBB6A,0xBB6B,0xBB6D,0xBB6E,/* 0x70-0x77 */
+	0xBB6F,0xBB70,0xBB71,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xBB72,0xBB73,0xBB74,0xBB75,0xBB76,0xBB77,0xBB78,/* 0x80-0x87 */
+	0xBB79,0xBB7A,0xBB7B,0xBB7C,0xBB7D,0xBB7E,0xBB7F,0xBB80,/* 0x88-0x8F */
+	0xBB81,0xBB82,0xBB83,0xBB84,0xBB85,0xBB86,0xBB87,0xBB89,/* 0x90-0x97 */
+	0xBB8A,0xBB8B,0xBB8D,0xBB8E,0xBB8F,0xBB91,0xBB92,0xBB93,/* 0x98-0x9F */
+	0xBB94,0xBB95,0xBB96,0xBB97,0xBB98,0xBB99,0xBB9A,0xBB9B,/* 0xA0-0xA7 */
+	0xBB9C,0xBB9D,0xBB9E,0xBB9F,0xBBA0,0xBBA1,0xBBA2,0xBBA3,/* 0xA8-0xAF */
+	0xBBA5,0xBBA6,0xBBA7,0xBBA9,0xBBAA,0xBBAB,0xBBAD,0xBBAE,/* 0xB0-0xB7 */
+	0xBBAF,0xBBB0,0xBBB1,0xBBB2,0xBBB3,0xBBB5,0xBBB6,0xBBB8,/* 0xB8-0xBF */
+	0xBBB9,0xBBBA,0xBBBB,0xBBBC,0xBBBD,0xBBBE,0xBBBF,0xBBC1,/* 0xC0-0xC7 */
+	0xBBC2,0xBBC3,0xBBC5,0xBBC6,0xBBC7,0xBBC9,0xBBCA,0xBBCB,/* 0xC8-0xCF */
+	0xBBCC,0xBBCD,0xBBCE,0xBBCF,0xBBD1,0xBBD2,0xBBD4,0xBBD5,/* 0xD0-0xD7 */
+	0xBBD6,0xBBD7,0xBBD8,0xBBD9,0xBBDA,0xBBDB,0xBBDC,0xBBDD,/* 0xD8-0xDF */
+	0xBBDE,0xBBDF,0xBBE0,0xBBE1,0xBBE2,0xBBE3,0xBBE4,0xBBE5,/* 0xE0-0xE7 */
+	0xBBE6,0xBBE7,0xBBE8,0xBBE9,0xBBEA,0xBBEB,0xBBEC,0xBBED,/* 0xE8-0xEF */
+	0xBBEE,0xBBEF,0xBBF0,0xBBF1,0xBBF2,0xBBF3,0xBBF4,0xBBF5,/* 0xF0-0xF7 */
+	0xBBF6,0xBBF7,0xBBFA,0xBBFB,0xBBFD,0xBBFE,0xBC01,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_93[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xBC03,0xBC04,0xBC05,0xBC06,0xBC07,0xBC0A,0xBC0E,/* 0x40-0x47 */
+	0xBC10,0xBC12,0xBC13,0xBC19,0xBC1A,0xBC20,0xBC21,0xBC22,/* 0x48-0x4F */
+	0xBC23,0xBC26,0xBC28,0xBC2A,0xBC2B,0xBC2C,0xBC2E,0xBC2F,/* 0x50-0x57 */
+	0xBC32,0xBC33,0xBC35,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xBC36,0xBC37,0xBC39,0xBC3A,0xBC3B,0xBC3C,0xBC3D,/* 0x60-0x67 */
+	0xBC3E,0xBC3F,0xBC42,0xBC46,0xBC47,0xBC48,0xBC4A,0xBC4B,/* 0x68-0x6F */
+	0xBC4E,0xBC4F,0xBC51,0xBC52,0xBC53,0xBC54,0xBC55,0xBC56,/* 0x70-0x77 */
+	0xBC57,0xBC58,0xBC59,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xBC5A,0xBC5B,0xBC5C,0xBC5E,0xBC5F,0xBC60,0xBC61,/* 0x80-0x87 */
+	0xBC62,0xBC63,0xBC64,0xBC65,0xBC66,0xBC67,0xBC68,0xBC69,/* 0x88-0x8F */
+	0xBC6A,0xBC6B,0xBC6C,0xBC6D,0xBC6E,0xBC6F,0xBC70,0xBC71,/* 0x90-0x97 */
+	0xBC72,0xBC73,0xBC74,0xBC75,0xBC76,0xBC77,0xBC78,0xBC79,/* 0x98-0x9F */
+	0xBC7A,0xBC7B,0xBC7C,0xBC7D,0xBC7E,0xBC7F,0xBC80,0xBC81,/* 0xA0-0xA7 */
+	0xBC82,0xBC83,0xBC86,0xBC87,0xBC89,0xBC8A,0xBC8D,0xBC8F,/* 0xA8-0xAF */
+	0xBC90,0xBC91,0xBC92,0xBC93,0xBC96,0xBC98,0xBC9B,0xBC9C,/* 0xB0-0xB7 */
+	0xBC9D,0xBC9E,0xBC9F,0xBCA2,0xBCA3,0xBCA5,0xBCA6,0xBCA9,/* 0xB8-0xBF */
+	0xBCAA,0xBCAB,0xBCAC,0xBCAD,0xBCAE,0xBCAF,0xBCB2,0xBCB6,/* 0xC0-0xC7 */
+	0xBCB7,0xBCB8,0xBCB9,0xBCBA,0xBCBB,0xBCBE,0xBCBF,0xBCC1,/* 0xC8-0xCF */
+	0xBCC2,0xBCC3,0xBCC5,0xBCC6,0xBCC7,0xBCC8,0xBCC9,0xBCCA,/* 0xD0-0xD7 */
+	0xBCCB,0xBCCC,0xBCCE,0xBCD2,0xBCD3,0xBCD4,0xBCD6,0xBCD7,/* 0xD8-0xDF */
+	0xBCD9,0xBCDA,0xBCDB,0xBCDD,0xBCDE,0xBCDF,0xBCE0,0xBCE1,/* 0xE0-0xE7 */
+	0xBCE2,0xBCE3,0xBCE4,0xBCE5,0xBCE6,0xBCE7,0xBCE8,0xBCE9,/* 0xE8-0xEF */
+	0xBCEA,0xBCEB,0xBCEC,0xBCED,0xBCEE,0xBCEF,0xBCF0,0xBCF1,/* 0xF0-0xF7 */
+	0xBCF2,0xBCF3,0xBCF7,0xBCF9,0xBCFA,0xBCFB,0xBCFD,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_94[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xBCFE,0xBCFF,0xBD00,0xBD01,0xBD02,0xBD03,0xBD06,/* 0x40-0x47 */
+	0xBD08,0xBD0A,0xBD0B,0xBD0C,0xBD0D,0xBD0E,0xBD0F,0xBD11,/* 0x48-0x4F */
+	0xBD12,0xBD13,0xBD15,0xBD16,0xBD17,0xBD18,0xBD19,0xBD1A,/* 0x50-0x57 */
+	0xBD1B,0xBD1C,0xBD1D,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xBD1E,0xBD1F,0xBD20,0xBD21,0xBD22,0xBD23,0xBD25,/* 0x60-0x67 */
+	0xBD26,0xBD27,0xBD28,0xBD29,0xBD2A,0xBD2B,0xBD2D,0xBD2E,/* 0x68-0x6F */
+	0xBD2F,0xBD30,0xBD31,0xBD32,0xBD33,0xBD34,0xBD35,0xBD36,/* 0x70-0x77 */
+	0xBD37,0xBD38,0xBD39,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xBD3A,0xBD3B,0xBD3C,0xBD3D,0xBD3E,0xBD3F,0xBD41,/* 0x80-0x87 */
+	0xBD42,0xBD43,0xBD44,0xBD45,0xBD46,0xBD47,0xBD4A,0xBD4B,/* 0x88-0x8F */
+	0xBD4D,0xBD4E,0xBD4F,0xBD51,0xBD52,0xBD53,0xBD54,0xBD55,/* 0x90-0x97 */
+	0xBD56,0xBD57,0xBD5A,0xBD5B,0xBD5C,0xBD5D,0xBD5E,0xBD5F,/* 0x98-0x9F */
+	0xBD60,0xBD61,0xBD62,0xBD63,0xBD65,0xBD66,0xBD67,0xBD69,/* 0xA0-0xA7 */
+	0xBD6A,0xBD6B,0xBD6C,0xBD6D,0xBD6E,0xBD6F,0xBD70,0xBD71,/* 0xA8-0xAF */
+	0xBD72,0xBD73,0xBD74,0xBD75,0xBD76,0xBD77,0xBD78,0xBD79,/* 0xB0-0xB7 */
+	0xBD7A,0xBD7B,0xBD7C,0xBD7D,0xBD7E,0xBD7F,0xBD82,0xBD83,/* 0xB8-0xBF */
+	0xBD85,0xBD86,0xBD8B,0xBD8C,0xBD8D,0xBD8E,0xBD8F,0xBD92,/* 0xC0-0xC7 */
+	0xBD94,0xBD96,0xBD97,0xBD98,0xBD9B,0xBD9D,0xBD9E,0xBD9F,/* 0xC8-0xCF */
+	0xBDA0,0xBDA1,0xBDA2,0xBDA3,0xBDA5,0xBDA6,0xBDA7,0xBDA8,/* 0xD0-0xD7 */
+	0xBDA9,0xBDAA,0xBDAB,0xBDAC,0xBDAD,0xBDAE,0xBDAF,0xBDB1,/* 0xD8-0xDF */
+	0xBDB2,0xBDB3,0xBDB4,0xBDB5,0xBDB6,0xBDB7,0xBDB9,0xBDBA,/* 0xE0-0xE7 */
+	0xBDBB,0xBDBC,0xBDBD,0xBDBE,0xBDBF,0xBDC0,0xBDC1,0xBDC2,/* 0xE8-0xEF */
+	0xBDC3,0xBDC4,0xBDC5,0xBDC6,0xBDC7,0xBDC8,0xBDC9,0xBDCA,/* 0xF0-0xF7 */
+	0xBDCB,0xBDCC,0xBDCD,0xBDCE,0xBDCF,0xBDD0,0xBDD1,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_95[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xBDD2,0xBDD3,0xBDD6,0xBDD7,0xBDD9,0xBDDA,0xBDDB,/* 0x40-0x47 */
+	0xBDDD,0xBDDE,0xBDDF,0xBDE0,0xBDE1,0xBDE2,0xBDE3,0xBDE4,/* 0x48-0x4F */
+	0xBDE5,0xBDE6,0xBDE7,0xBDE8,0xBDEA,0xBDEB,0xBDEC,0xBDED,/* 0x50-0x57 */
+	0xBDEE,0xBDEF,0xBDF1,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xBDF2,0xBDF3,0xBDF5,0xBDF6,0xBDF7,0xBDF9,0xBDFA,/* 0x60-0x67 */
+	0xBDFB,0xBDFC,0xBDFD,0xBDFE,0xBDFF,0xBE01,0xBE02,0xBE04,/* 0x68-0x6F */
+	0xBE06,0xBE07,0xBE08,0xBE09,0xBE0A,0xBE0B,0xBE0E,0xBE0F,/* 0x70-0x77 */
+	0xBE11,0xBE12,0xBE13,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xBE15,0xBE16,0xBE17,0xBE18,0xBE19,0xBE1A,0xBE1B,/* 0x80-0x87 */
+	0xBE1E,0xBE20,0xBE21,0xBE22,0xBE23,0xBE24,0xBE25,0xBE26,/* 0x88-0x8F */
+	0xBE27,0xBE28,0xBE29,0xBE2A,0xBE2B,0xBE2C,0xBE2D,0xBE2E,/* 0x90-0x97 */
+	0xBE2F,0xBE30,0xBE31,0xBE32,0xBE33,0xBE34,0xBE35,0xBE36,/* 0x98-0x9F */
+	0xBE37,0xBE38,0xBE39,0xBE3A,0xBE3B,0xBE3C,0xBE3D,0xBE3E,/* 0xA0-0xA7 */
+	0xBE3F,0xBE40,0xBE41,0xBE42,0xBE43,0xBE46,0xBE47,0xBE49,/* 0xA8-0xAF */
+	0xBE4A,0xBE4B,0xBE4D,0xBE4F,0xBE50,0xBE51,0xBE52,0xBE53,/* 0xB0-0xB7 */
+	0xBE56,0xBE58,0xBE5C,0xBE5D,0xBE5E,0xBE5F,0xBE62,0xBE63,/* 0xB8-0xBF */
+	0xBE65,0xBE66,0xBE67,0xBE69,0xBE6B,0xBE6C,0xBE6D,0xBE6E,/* 0xC0-0xC7 */
+	0xBE6F,0xBE72,0xBE76,0xBE77,0xBE78,0xBE79,0xBE7A,0xBE7E,/* 0xC8-0xCF */
+	0xBE7F,0xBE81,0xBE82,0xBE83,0xBE85,0xBE86,0xBE87,0xBE88,/* 0xD0-0xD7 */
+	0xBE89,0xBE8A,0xBE8B,0xBE8E,0xBE92,0xBE93,0xBE94,0xBE95,/* 0xD8-0xDF */
+	0xBE96,0xBE97,0xBE9A,0xBE9B,0xBE9C,0xBE9D,0xBE9E,0xBE9F,/* 0xE0-0xE7 */
+	0xBEA0,0xBEA1,0xBEA2,0xBEA3,0xBEA4,0xBEA5,0xBEA6,0xBEA7,/* 0xE8-0xEF */
+	0xBEA9,0xBEAA,0xBEAB,0xBEAC,0xBEAD,0xBEAE,0xBEAF,0xBEB0,/* 0xF0-0xF7 */
+	0xBEB1,0xBEB2,0xBEB3,0xBEB4,0xBEB5,0xBEB6,0xBEB7,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_96[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xBEB8,0xBEB9,0xBEBA,0xBEBB,0xBEBC,0xBEBD,0xBEBE,/* 0x40-0x47 */
+	0xBEBF,0xBEC0,0xBEC1,0xBEC2,0xBEC3,0xBEC4,0xBEC5,0xBEC6,/* 0x48-0x4F */
+	0xBEC7,0xBEC8,0xBEC9,0xBECA,0xBECB,0xBECC,0xBECD,0xBECE,/* 0x50-0x57 */
+	0xBECF,0xBED2,0xBED3,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xBED5,0xBED6,0xBED9,0xBEDA,0xBEDB,0xBEDC,0xBEDD,/* 0x60-0x67 */
+	0xBEDE,0xBEDF,0xBEE1,0xBEE2,0xBEE6,0xBEE7,0xBEE8,0xBEE9,/* 0x68-0x6F */
+	0xBEEA,0xBEEB,0xBEED,0xBEEE,0xBEEF,0xBEF0,0xBEF1,0xBEF2,/* 0x70-0x77 */
+	0xBEF3,0xBEF4,0xBEF5,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xBEF6,0xBEF7,0xBEF8,0xBEF9,0xBEFA,0xBEFB,0xBEFC,/* 0x80-0x87 */
+	0xBEFD,0xBEFE,0xBEFF,0xBF00,0xBF02,0xBF03,0xBF04,0xBF05,/* 0x88-0x8F */
+	0xBF06,0xBF07,0xBF0A,0xBF0B,0xBF0C,0xBF0D,0xBF0E,0xBF0F,/* 0x90-0x97 */
+	0xBF10,0xBF11,0xBF12,0xBF13,0xBF14,0xBF15,0xBF16,0xBF17,/* 0x98-0x9F */
+	0xBF1A,0xBF1E,0xBF1F,0xBF20,0xBF21,0xBF22,0xBF23,0xBF24,/* 0xA0-0xA7 */
+	0xBF25,0xBF26,0xBF27,0xBF28,0xBF29,0xBF2A,0xBF2B,0xBF2C,/* 0xA8-0xAF */
+	0xBF2D,0xBF2E,0xBF2F,0xBF30,0xBF31,0xBF32,0xBF33,0xBF34,/* 0xB0-0xB7 */
+	0xBF35,0xBF36,0xBF37,0xBF38,0xBF39,0xBF3A,0xBF3B,0xBF3C,/* 0xB8-0xBF */
+	0xBF3D,0xBF3E,0xBF3F,0xBF42,0xBF43,0xBF45,0xBF46,0xBF47,/* 0xC0-0xC7 */
+	0xBF49,0xBF4A,0xBF4B,0xBF4C,0xBF4D,0xBF4E,0xBF4F,0xBF52,/* 0xC8-0xCF */
+	0xBF53,0xBF54,0xBF56,0xBF57,0xBF58,0xBF59,0xBF5A,0xBF5B,/* 0xD0-0xD7 */
+	0xBF5C,0xBF5D,0xBF5E,0xBF5F,0xBF60,0xBF61,0xBF62,0xBF63,/* 0xD8-0xDF */
+	0xBF64,0xBF65,0xBF66,0xBF67,0xBF68,0xBF69,0xBF6A,0xBF6B,/* 0xE0-0xE7 */
+	0xBF6C,0xBF6D,0xBF6E,0xBF6F,0xBF70,0xBF71,0xBF72,0xBF73,/* 0xE8-0xEF */
+	0xBF74,0xBF75,0xBF76,0xBF77,0xBF78,0xBF79,0xBF7A,0xBF7B,/* 0xF0-0xF7 */
+	0xBF7C,0xBF7D,0xBF7E,0xBF7F,0xBF80,0xBF81,0xBF82,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_97[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xBF83,0xBF84,0xBF85,0xBF86,0xBF87,0xBF88,0xBF89,/* 0x40-0x47 */
+	0xBF8A,0xBF8B,0xBF8C,0xBF8D,0xBF8E,0xBF8F,0xBF90,0xBF91,/* 0x48-0x4F */
+	0xBF92,0xBF93,0xBF95,0xBF96,0xBF97,0xBF98,0xBF99,0xBF9A,/* 0x50-0x57 */
+	0xBF9B,0xBF9C,0xBF9D,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xBF9E,0xBF9F,0xBFA0,0xBFA1,0xBFA2,0xBFA3,0xBFA4,/* 0x60-0x67 */
+	0xBFA5,0xBFA6,0xBFA7,0xBFA8,0xBFA9,0xBFAA,0xBFAB,0xBFAC,/* 0x68-0x6F */
+	0xBFAD,0xBFAE,0xBFAF,0xBFB1,0xBFB2,0xBFB3,0xBFB4,0xBFB5,/* 0x70-0x77 */
+	0xBFB6,0xBFB7,0xBFB8,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xBFB9,0xBFBA,0xBFBB,0xBFBC,0xBFBD,0xBFBE,0xBFBF,/* 0x80-0x87 */
+	0xBFC0,0xBFC1,0xBFC2,0xBFC3,0xBFC4,0xBFC6,0xBFC7,0xBFC8,/* 0x88-0x8F */
+	0xBFC9,0xBFCA,0xBFCB,0xBFCE,0xBFCF,0xBFD1,0xBFD2,0xBFD3,/* 0x90-0x97 */
+	0xBFD5,0xBFD6,0xBFD7,0xBFD8,0xBFD9,0xBFDA,0xBFDB,0xBFDD,/* 0x98-0x9F */
+	0xBFDE,0xBFE0,0xBFE2,0xBFE3,0xBFE4,0xBFE5,0xBFE6,0xBFE7,/* 0xA0-0xA7 */
+	0xBFE8,0xBFE9,0xBFEA,0xBFEB,0xBFEC,0xBFED,0xBFEE,0xBFEF,/* 0xA8-0xAF */
+	0xBFF0,0xBFF1,0xBFF2,0xBFF3,0xBFF4,0xBFF5,0xBFF6,0xBFF7,/* 0xB0-0xB7 */
+	0xBFF8,0xBFF9,0xBFFA,0xBFFB,0xBFFC,0xBFFD,0xBFFE,0xBFFF,/* 0xB8-0xBF */
+	0xC000,0xC001,0xC002,0xC003,0xC004,0xC005,0xC006,0xC007,/* 0xC0-0xC7 */
+	0xC008,0xC009,0xC00A,0xC00B,0xC00C,0xC00D,0xC00E,0xC00F,/* 0xC8-0xCF */
+	0xC010,0xC011,0xC012,0xC013,0xC014,0xC015,0xC016,0xC017,/* 0xD0-0xD7 */
+	0xC018,0xC019,0xC01A,0xC01B,0xC01C,0xC01D,0xC01E,0xC01F,/* 0xD8-0xDF */
+	0xC020,0xC021,0xC022,0xC023,0xC024,0xC025,0xC026,0xC027,/* 0xE0-0xE7 */
+	0xC028,0xC029,0xC02A,0xC02B,0xC02C,0xC02D,0xC02E,0xC02F,/* 0xE8-0xEF */
+	0xC030,0xC031,0xC032,0xC033,0xC034,0xC035,0xC036,0xC037,/* 0xF0-0xF7 */
+	0xC038,0xC039,0xC03A,0xC03B,0xC03D,0xC03E,0xC03F,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_98[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xC040,0xC041,0xC042,0xC043,0xC044,0xC045,0xC046,/* 0x40-0x47 */
+	0xC047,0xC048,0xC049,0xC04A,0xC04B,0xC04C,0xC04D,0xC04E,/* 0x48-0x4F */
+	0xC04F,0xC050,0xC052,0xC053,0xC054,0xC055,0xC056,0xC057,/* 0x50-0x57 */
+	0xC059,0xC05A,0xC05B,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xC05D,0xC05E,0xC05F,0xC061,0xC062,0xC063,0xC064,/* 0x60-0x67 */
+	0xC065,0xC066,0xC067,0xC06A,0xC06B,0xC06C,0xC06D,0xC06E,/* 0x68-0x6F */
+	0xC06F,0xC070,0xC071,0xC072,0xC073,0xC074,0xC075,0xC076,/* 0x70-0x77 */
+	0xC077,0xC078,0xC079,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xC07A,0xC07B,0xC07C,0xC07D,0xC07E,0xC07F,0xC080,/* 0x80-0x87 */
+	0xC081,0xC082,0xC083,0xC084,0xC085,0xC086,0xC087,0xC088,/* 0x88-0x8F */
+	0xC089,0xC08A,0xC08B,0xC08C,0xC08D,0xC08E,0xC08F,0xC092,/* 0x90-0x97 */
+	0xC093,0xC095,0xC096,0xC097,0xC099,0xC09A,0xC09B,0xC09C,/* 0x98-0x9F */
+	0xC09D,0xC09E,0xC09F,0xC0A2,0xC0A4,0xC0A6,0xC0A7,0xC0A8,/* 0xA0-0xA7 */
+	0xC0A9,0xC0AA,0xC0AB,0xC0AE,0xC0B1,0xC0B2,0xC0B7,0xC0B8,/* 0xA8-0xAF */
+	0xC0B9,0xC0BA,0xC0BB,0xC0BE,0xC0C2,0xC0C3,0xC0C4,0xC0C6,/* 0xB0-0xB7 */
+	0xC0C7,0xC0CA,0xC0CB,0xC0CD,0xC0CE,0xC0CF,0xC0D1,0xC0D2,/* 0xB8-0xBF */
+	0xC0D3,0xC0D4,0xC0D5,0xC0D6,0xC0D7,0xC0DA,0xC0DE,0xC0DF,/* 0xC0-0xC7 */
+	0xC0E0,0xC0E1,0xC0E2,0xC0E3,0xC0E6,0xC0E7,0xC0E9,0xC0EA,/* 0xC8-0xCF */
+	0xC0EB,0xC0ED,0xC0EE,0xC0EF,0xC0F0,0xC0F1,0xC0F2,0xC0F3,/* 0xD0-0xD7 */
+	0xC0F6,0xC0F8,0xC0FA,0xC0FB,0xC0FC,0xC0FD,0xC0FE,0xC0FF,/* 0xD8-0xDF */
+	0xC101,0xC102,0xC103,0xC105,0xC106,0xC107,0xC109,0xC10A,/* 0xE0-0xE7 */
+	0xC10B,0xC10C,0xC10D,0xC10E,0xC10F,0xC111,0xC112,0xC113,/* 0xE8-0xEF */
+	0xC114,0xC116,0xC117,0xC118,0xC119,0xC11A,0xC11B,0xC121,/* 0xF0-0xF7 */
+	0xC122,0xC125,0xC128,0xC129,0xC12A,0xC12B,0xC12E,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_99[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xC132,0xC133,0xC134,0xC135,0xC137,0xC13A,0xC13B,/* 0x40-0x47 */
+	0xC13D,0xC13E,0xC13F,0xC141,0xC142,0xC143,0xC144,0xC145,/* 0x48-0x4F */
+	0xC146,0xC147,0xC14A,0xC14E,0xC14F,0xC150,0xC151,0xC152,/* 0x50-0x57 */
+	0xC153,0xC156,0xC157,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xC159,0xC15A,0xC15B,0xC15D,0xC15E,0xC15F,0xC160,/* 0x60-0x67 */
+	0xC161,0xC162,0xC163,0xC166,0xC16A,0xC16B,0xC16C,0xC16D,/* 0x68-0x6F */
+	0xC16E,0xC16F,0xC171,0xC172,0xC173,0xC175,0xC176,0xC177,/* 0x70-0x77 */
+	0xC179,0xC17A,0xC17B,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xC17C,0xC17D,0xC17E,0xC17F,0xC180,0xC181,0xC182,/* 0x80-0x87 */
+	0xC183,0xC184,0xC186,0xC187,0xC188,0xC189,0xC18A,0xC18B,/* 0x88-0x8F */
+	0xC18F,0xC191,0xC192,0xC193,0xC195,0xC197,0xC198,0xC199,/* 0x90-0x97 */
+	0xC19A,0xC19B,0xC19E,0xC1A0,0xC1A2,0xC1A3,0xC1A4,0xC1A6,/* 0x98-0x9F */
+	0xC1A7,0xC1AA,0xC1AB,0xC1AD,0xC1AE,0xC1AF,0xC1B1,0xC1B2,/* 0xA0-0xA7 */
+	0xC1B3,0xC1B4,0xC1B5,0xC1B6,0xC1B7,0xC1B8,0xC1B9,0xC1BA,/* 0xA8-0xAF */
+	0xC1BB,0xC1BC,0xC1BE,0xC1BF,0xC1C0,0xC1C1,0xC1C2,0xC1C3,/* 0xB0-0xB7 */
+	0xC1C5,0xC1C6,0xC1C7,0xC1C9,0xC1CA,0xC1CB,0xC1CD,0xC1CE,/* 0xB8-0xBF */
+	0xC1CF,0xC1D0,0xC1D1,0xC1D2,0xC1D3,0xC1D5,0xC1D6,0xC1D9,/* 0xC0-0xC7 */
+	0xC1DA,0xC1DB,0xC1DC,0xC1DD,0xC1DE,0xC1DF,0xC1E1,0xC1E2,/* 0xC8-0xCF */
+	0xC1E3,0xC1E5,0xC1E6,0xC1E7,0xC1E9,0xC1EA,0xC1EB,0xC1EC,/* 0xD0-0xD7 */
+	0xC1ED,0xC1EE,0xC1EF,0xC1F2,0xC1F4,0xC1F5,0xC1F6,0xC1F7,/* 0xD8-0xDF */
+	0xC1F8,0xC1F9,0xC1FA,0xC1FB,0xC1FE,0xC1FF,0xC201,0xC202,/* 0xE0-0xE7 */
+	0xC203,0xC205,0xC206,0xC207,0xC208,0xC209,0xC20A,0xC20B,/* 0xE8-0xEF */
+	0xC20E,0xC210,0xC212,0xC213,0xC214,0xC215,0xC216,0xC217,/* 0xF0-0xF7 */
+	0xC21A,0xC21B,0xC21D,0xC21E,0xC221,0xC222,0xC223,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_9A[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xC224,0xC225,0xC226,0xC227,0xC22A,0xC22C,0xC22E,/* 0x40-0x47 */
+	0xC230,0xC233,0xC235,0xC236,0xC237,0xC238,0xC239,0xC23A,/* 0x48-0x4F */
+	0xC23B,0xC23C,0xC23D,0xC23E,0xC23F,0xC240,0xC241,0xC242,/* 0x50-0x57 */
+	0xC243,0xC244,0xC245,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xC246,0xC247,0xC249,0xC24A,0xC24B,0xC24C,0xC24D,/* 0x60-0x67 */
+	0xC24E,0xC24F,0xC252,0xC253,0xC255,0xC256,0xC257,0xC259,/* 0x68-0x6F */
+	0xC25A,0xC25B,0xC25C,0xC25D,0xC25E,0xC25F,0xC261,0xC262,/* 0x70-0x77 */
+	0xC263,0xC264,0xC266,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xC267,0xC268,0xC269,0xC26A,0xC26B,0xC26E,0xC26F,/* 0x80-0x87 */
+	0xC271,0xC272,0xC273,0xC275,0xC276,0xC277,0xC278,0xC279,/* 0x88-0x8F */
+	0xC27A,0xC27B,0xC27E,0xC280,0xC282,0xC283,0xC284,0xC285,/* 0x90-0x97 */
+	0xC286,0xC287,0xC28A,0xC28B,0xC28C,0xC28D,0xC28E,0xC28F,/* 0x98-0x9F */
+	0xC291,0xC292,0xC293,0xC294,0xC295,0xC296,0xC297,0xC299,/* 0xA0-0xA7 */
+	0xC29A,0xC29C,0xC29E,0xC29F,0xC2A0,0xC2A1,0xC2A2,0xC2A3,/* 0xA8-0xAF */
+	0xC2A6,0xC2A7,0xC2A9,0xC2AA,0xC2AB,0xC2AE,0xC2AF,0xC2B0,/* 0xB0-0xB7 */
+	0xC2B1,0xC2B2,0xC2B3,0xC2B6,0xC2B8,0xC2BA,0xC2BB,0xC2BC,/* 0xB8-0xBF */
+	0xC2BD,0xC2BE,0xC2BF,0xC2C0,0xC2C1,0xC2C2,0xC2C3,0xC2C4,/* 0xC0-0xC7 */
+	0xC2C5,0xC2C6,0xC2C7,0xC2C8,0xC2C9,0xC2CA,0xC2CB,0xC2CC,/* 0xC8-0xCF */
+	0xC2CD,0xC2CE,0xC2CF,0xC2D0,0xC2D1,0xC2D2,0xC2D3,0xC2D4,/* 0xD0-0xD7 */
+	0xC2D5,0xC2D6,0xC2D7,0xC2D8,0xC2D9,0xC2DA,0xC2DB,0xC2DE,/* 0xD8-0xDF */
+	0xC2DF,0xC2E1,0xC2E2,0xC2E5,0xC2E6,0xC2E7,0xC2E8,0xC2E9,/* 0xE0-0xE7 */
+	0xC2EA,0xC2EE,0xC2F0,0xC2F2,0xC2F3,0xC2F4,0xC2F5,0xC2F7,/* 0xE8-0xEF */
+	0xC2FA,0xC2FD,0xC2FE,0xC2FF,0xC301,0xC302,0xC303,0xC304,/* 0xF0-0xF7 */
+	0xC305,0xC306,0xC307,0xC30A,0xC30B,0xC30E,0xC30F,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_9B[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xC310,0xC311,0xC312,0xC316,0xC317,0xC319,0xC31A,/* 0x40-0x47 */
+	0xC31B,0xC31D,0xC31E,0xC31F,0xC320,0xC321,0xC322,0xC323,/* 0x48-0x4F */
+	0xC326,0xC327,0xC32A,0xC32B,0xC32C,0xC32D,0xC32E,0xC32F,/* 0x50-0x57 */
+	0xC330,0xC331,0xC332,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xC333,0xC334,0xC335,0xC336,0xC337,0xC338,0xC339,/* 0x60-0x67 */
+	0xC33A,0xC33B,0xC33C,0xC33D,0xC33E,0xC33F,0xC340,0xC341,/* 0x68-0x6F */
+	0xC342,0xC343,0xC344,0xC346,0xC347,0xC348,0xC349,0xC34A,/* 0x70-0x77 */
+	0xC34B,0xC34C,0xC34D,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xC34E,0xC34F,0xC350,0xC351,0xC352,0xC353,0xC354,/* 0x80-0x87 */
+	0xC355,0xC356,0xC357,0xC358,0xC359,0xC35A,0xC35B,0xC35C,/* 0x88-0x8F */
+	0xC35D,0xC35E,0xC35F,0xC360,0xC361,0xC362,0xC363,0xC364,/* 0x90-0x97 */
+	0xC365,0xC366,0xC367,0xC36A,0xC36B,0xC36D,0xC36E,0xC36F,/* 0x98-0x9F */
+	0xC371,0xC373,0xC374,0xC375,0xC376,0xC377,0xC37A,0xC37B,/* 0xA0-0xA7 */
+	0xC37E,0xC37F,0xC380,0xC381,0xC382,0xC383,0xC385,0xC386,/* 0xA8-0xAF */
+	0xC387,0xC389,0xC38A,0xC38B,0xC38D,0xC38E,0xC38F,0xC390,/* 0xB0-0xB7 */
+	0xC391,0xC392,0xC393,0xC394,0xC395,0xC396,0xC397,0xC398,/* 0xB8-0xBF */
+	0xC399,0xC39A,0xC39B,0xC39C,0xC39D,0xC39E,0xC39F,0xC3A0,/* 0xC0-0xC7 */
+	0xC3A1,0xC3A2,0xC3A3,0xC3A4,0xC3A5,0xC3A6,0xC3A7,0xC3A8,/* 0xC8-0xCF */
+	0xC3A9,0xC3AA,0xC3AB,0xC3AC,0xC3AD,0xC3AE,0xC3AF,0xC3B0,/* 0xD0-0xD7 */
+	0xC3B1,0xC3B2,0xC3B3,0xC3B4,0xC3B5,0xC3B6,0xC3B7,0xC3B8,/* 0xD8-0xDF */
+	0xC3B9,0xC3BA,0xC3BB,0xC3BC,0xC3BD,0xC3BE,0xC3BF,0xC3C1,/* 0xE0-0xE7 */
+	0xC3C2,0xC3C3,0xC3C4,0xC3C5,0xC3C6,0xC3C7,0xC3C8,0xC3C9,/* 0xE8-0xEF */
+	0xC3CA,0xC3CB,0xC3CC,0xC3CD,0xC3CE,0xC3CF,0xC3D0,0xC3D1,/* 0xF0-0xF7 */
+	0xC3D2,0xC3D3,0xC3D4,0xC3D5,0xC3D6,0xC3D7,0xC3DA,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_9C[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xC3DB,0xC3DD,0xC3DE,0xC3E1,0xC3E3,0xC3E4,0xC3E5,/* 0x40-0x47 */
+	0xC3E6,0xC3E7,0xC3EA,0xC3EB,0xC3EC,0xC3EE,0xC3EF,0xC3F0,/* 0x48-0x4F */
+	0xC3F1,0xC3F2,0xC3F3,0xC3F6,0xC3F7,0xC3F9,0xC3FA,0xC3FB,/* 0x50-0x57 */
+	0xC3FC,0xC3FD,0xC3FE,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xC3FF,0xC400,0xC401,0xC402,0xC403,0xC404,0xC405,/* 0x60-0x67 */
+	0xC406,0xC407,0xC409,0xC40A,0xC40B,0xC40C,0xC40D,0xC40E,/* 0x68-0x6F */
+	0xC40F,0xC411,0xC412,0xC413,0xC414,0xC415,0xC416,0xC417,/* 0x70-0x77 */
+	0xC418,0xC419,0xC41A,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xC41B,0xC41C,0xC41D,0xC41E,0xC41F,0xC420,0xC421,/* 0x80-0x87 */
+	0xC422,0xC423,0xC425,0xC426,0xC427,0xC428,0xC429,0xC42A,/* 0x88-0x8F */
+	0xC42B,0xC42D,0xC42E,0xC42F,0xC431,0xC432,0xC433,0xC435,/* 0x90-0x97 */
+	0xC436,0xC437,0xC438,0xC439,0xC43A,0xC43B,0xC43E,0xC43F,/* 0x98-0x9F */
+	0xC440,0xC441,0xC442,0xC443,0xC444,0xC445,0xC446,0xC447,/* 0xA0-0xA7 */
+	0xC449,0xC44A,0xC44B,0xC44C,0xC44D,0xC44E,0xC44F,0xC450,/* 0xA8-0xAF */
+	0xC451,0xC452,0xC453,0xC454,0xC455,0xC456,0xC457,0xC458,/* 0xB0-0xB7 */
+	0xC459,0xC45A,0xC45B,0xC45C,0xC45D,0xC45E,0xC45F,0xC460,/* 0xB8-0xBF */
+	0xC461,0xC462,0xC463,0xC466,0xC467,0xC469,0xC46A,0xC46B,/* 0xC0-0xC7 */
+	0xC46D,0xC46E,0xC46F,0xC470,0xC471,0xC472,0xC473,0xC476,/* 0xC8-0xCF */
+	0xC477,0xC478,0xC47A,0xC47B,0xC47C,0xC47D,0xC47E,0xC47F,/* 0xD0-0xD7 */
+	0xC481,0xC482,0xC483,0xC484,0xC485,0xC486,0xC487,0xC488,/* 0xD8-0xDF */
+	0xC489,0xC48A,0xC48B,0xC48C,0xC48D,0xC48E,0xC48F,0xC490,/* 0xE0-0xE7 */
+	0xC491,0xC492,0xC493,0xC495,0xC496,0xC497,0xC498,0xC499,/* 0xE8-0xEF */
+	0xC49A,0xC49B,0xC49D,0xC49E,0xC49F,0xC4A0,0xC4A1,0xC4A2,/* 0xF0-0xF7 */
+	0xC4A3,0xC4A4,0xC4A5,0xC4A6,0xC4A7,0xC4A8,0xC4A9,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_9D[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xC4AA,0xC4AB,0xC4AC,0xC4AD,0xC4AE,0xC4AF,0xC4B0,/* 0x40-0x47 */
+	0xC4B1,0xC4B2,0xC4B3,0xC4B4,0xC4B5,0xC4B6,0xC4B7,0xC4B9,/* 0x48-0x4F */
+	0xC4BA,0xC4BB,0xC4BD,0xC4BE,0xC4BF,0xC4C0,0xC4C1,0xC4C2,/* 0x50-0x57 */
+	0xC4C3,0xC4C4,0xC4C5,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xC4C6,0xC4C7,0xC4C8,0xC4C9,0xC4CA,0xC4CB,0xC4CC,/* 0x60-0x67 */
+	0xC4CD,0xC4CE,0xC4CF,0xC4D0,0xC4D1,0xC4D2,0xC4D3,0xC4D4,/* 0x68-0x6F */
+	0xC4D5,0xC4D6,0xC4D7,0xC4D8,0xC4D9,0xC4DA,0xC4DB,0xC4DC,/* 0x70-0x77 */
+	0xC4DD,0xC4DE,0xC4DF,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xC4E0,0xC4E1,0xC4E2,0xC4E3,0xC4E4,0xC4E5,0xC4E6,/* 0x80-0x87 */
+	0xC4E7,0xC4E8,0xC4EA,0xC4EB,0xC4EC,0xC4ED,0xC4EE,0xC4EF,/* 0x88-0x8F */
+	0xC4F2,0xC4F3,0xC4F5,0xC4F6,0xC4F7,0xC4F9,0xC4FB,0xC4FC,/* 0x90-0x97 */
+	0xC4FD,0xC4FE,0xC502,0xC503,0xC504,0xC505,0xC506,0xC507,/* 0x98-0x9F */
+	0xC508,0xC509,0xC50A,0xC50B,0xC50D,0xC50E,0xC50F,0xC511,/* 0xA0-0xA7 */
+	0xC512,0xC513,0xC515,0xC516,0xC517,0xC518,0xC519,0xC51A,/* 0xA8-0xAF */
+	0xC51B,0xC51D,0xC51E,0xC51F,0xC520,0xC521,0xC522,0xC523,/* 0xB0-0xB7 */
+	0xC524,0xC525,0xC526,0xC527,0xC52A,0xC52B,0xC52D,0xC52E,/* 0xB8-0xBF */
+	0xC52F,0xC531,0xC532,0xC533,0xC534,0xC535,0xC536,0xC537,/* 0xC0-0xC7 */
+	0xC53A,0xC53C,0xC53E,0xC53F,0xC540,0xC541,0xC542,0xC543,/* 0xC8-0xCF */
+	0xC546,0xC547,0xC54B,0xC54F,0xC550,0xC551,0xC552,0xC556,/* 0xD0-0xD7 */
+	0xC55A,0xC55B,0xC55C,0xC55F,0xC562,0xC563,0xC565,0xC566,/* 0xD8-0xDF */
+	0xC567,0xC569,0xC56A,0xC56B,0xC56C,0xC56D,0xC56E,0xC56F,/* 0xE0-0xE7 */
+	0xC572,0xC576,0xC577,0xC578,0xC579,0xC57A,0xC57B,0xC57E,/* 0xE8-0xEF */
+	0xC57F,0xC581,0xC582,0xC583,0xC585,0xC586,0xC588,0xC589,/* 0xF0-0xF7 */
+	0xC58A,0xC58B,0xC58E,0xC590,0xC592,0xC593,0xC594,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_9E[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xC596,0xC599,0xC59A,0xC59B,0xC59D,0xC59E,0xC59F,/* 0x40-0x47 */
+	0xC5A1,0xC5A2,0xC5A3,0xC5A4,0xC5A5,0xC5A6,0xC5A7,0xC5A8,/* 0x48-0x4F */
+	0xC5AA,0xC5AB,0xC5AC,0xC5AD,0xC5AE,0xC5AF,0xC5B0,0xC5B1,/* 0x50-0x57 */
+	0xC5B2,0xC5B3,0xC5B6,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xC5B7,0xC5BA,0xC5BF,0xC5C0,0xC5C1,0xC5C2,0xC5C3,/* 0x60-0x67 */
+	0xC5CB,0xC5CD,0xC5CF,0xC5D2,0xC5D3,0xC5D5,0xC5D6,0xC5D7,/* 0x68-0x6F */
+	0xC5D9,0xC5DA,0xC5DB,0xC5DC,0xC5DD,0xC5DE,0xC5DF,0xC5E2,/* 0x70-0x77 */
+	0xC5E4,0xC5E6,0xC5E7,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xC5E8,0xC5E9,0xC5EA,0xC5EB,0xC5EF,0xC5F1,0xC5F2,/* 0x80-0x87 */
+	0xC5F3,0xC5F5,0xC5F8,0xC5F9,0xC5FA,0xC5FB,0xC602,0xC603,/* 0x88-0x8F */
+	0xC604,0xC609,0xC60A,0xC60B,0xC60D,0xC60E,0xC60F,0xC611,/* 0x90-0x97 */
+	0xC612,0xC613,0xC614,0xC615,0xC616,0xC617,0xC61A,0xC61D,/* 0x98-0x9F */
+	0xC61E,0xC61F,0xC620,0xC621,0xC622,0xC623,0xC626,0xC627,/* 0xA0-0xA7 */
+	0xC629,0xC62A,0xC62B,0xC62F,0xC631,0xC632,0xC636,0xC638,/* 0xA8-0xAF */
+	0xC63A,0xC63C,0xC63D,0xC63E,0xC63F,0xC642,0xC643,0xC645,/* 0xB0-0xB7 */
+	0xC646,0xC647,0xC649,0xC64A,0xC64B,0xC64C,0xC64D,0xC64E,/* 0xB8-0xBF */
+	0xC64F,0xC652,0xC656,0xC657,0xC658,0xC659,0xC65A,0xC65B,/* 0xC0-0xC7 */
+	0xC65E,0xC65F,0xC661,0xC662,0xC663,0xC664,0xC665,0xC666,/* 0xC8-0xCF */
+	0xC667,0xC668,0xC669,0xC66A,0xC66B,0xC66D,0xC66E,0xC670,/* 0xD0-0xD7 */
+	0xC672,0xC673,0xC674,0xC675,0xC676,0xC677,0xC67A,0xC67B,/* 0xD8-0xDF */
+	0xC67D,0xC67E,0xC67F,0xC681,0xC682,0xC683,0xC684,0xC685,/* 0xE0-0xE7 */
+	0xC686,0xC687,0xC68A,0xC68C,0xC68E,0xC68F,0xC690,0xC691,/* 0xE8-0xEF */
+	0xC692,0xC693,0xC696,0xC697,0xC699,0xC69A,0xC69B,0xC69D,/* 0xF0-0xF7 */
+	0xC69E,0xC69F,0xC6A0,0xC6A1,0xC6A2,0xC6A3,0xC6A6,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_9F[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xC6A8,0xC6AA,0xC6AB,0xC6AC,0xC6AD,0xC6AE,0xC6AF,/* 0x40-0x47 */
+	0xC6B2,0xC6B3,0xC6B5,0xC6B6,0xC6B7,0xC6BB,0xC6BC,0xC6BD,/* 0x48-0x4F */
+	0xC6BE,0xC6BF,0xC6C2,0xC6C4,0xC6C6,0xC6C7,0xC6C8,0xC6C9,/* 0x50-0x57 */
+	0xC6CA,0xC6CB,0xC6CE,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xC6CF,0xC6D1,0xC6D2,0xC6D3,0xC6D5,0xC6D6,0xC6D7,/* 0x60-0x67 */
+	0xC6D8,0xC6D9,0xC6DA,0xC6DB,0xC6DE,0xC6DF,0xC6E2,0xC6E3,/* 0x68-0x6F */
+	0xC6E4,0xC6E5,0xC6E6,0xC6E7,0xC6EA,0xC6EB,0xC6ED,0xC6EE,/* 0x70-0x77 */
+	0xC6EF,0xC6F1,0xC6F2,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xC6F3,0xC6F4,0xC6F5,0xC6F6,0xC6F7,0xC6FA,0xC6FB,/* 0x80-0x87 */
+	0xC6FC,0xC6FE,0xC6FF,0xC700,0xC701,0xC702,0xC703,0xC706,/* 0x88-0x8F */
+	0xC707,0xC709,0xC70A,0xC70B,0xC70D,0xC70E,0xC70F,0xC710,/* 0x90-0x97 */
+	0xC711,0xC712,0xC713,0xC716,0xC718,0xC71A,0xC71B,0xC71C,/* 0x98-0x9F */
+	0xC71D,0xC71E,0xC71F,0xC722,0xC723,0xC725,0xC726,0xC727,/* 0xA0-0xA7 */
+	0xC729,0xC72A,0xC72B,0xC72C,0xC72D,0xC72E,0xC72F,0xC732,/* 0xA8-0xAF */
+	0xC734,0xC736,0xC738,0xC739,0xC73A,0xC73B,0xC73E,0xC73F,/* 0xB0-0xB7 */
+	0xC741,0xC742,0xC743,0xC745,0xC746,0xC747,0xC748,0xC749,/* 0xB8-0xBF */
+	0xC74B,0xC74E,0xC750,0xC759,0xC75A,0xC75B,0xC75D,0xC75E,/* 0xC0-0xC7 */
+	0xC75F,0xC761,0xC762,0xC763,0xC764,0xC765,0xC766,0xC767,/* 0xC8-0xCF */
+	0xC769,0xC76A,0xC76C,0xC76D,0xC76E,0xC76F,0xC770,0xC771,/* 0xD0-0xD7 */
+	0xC772,0xC773,0xC776,0xC777,0xC779,0xC77A,0xC77B,0xC77F,/* 0xD8-0xDF */
+	0xC780,0xC781,0xC782,0xC786,0xC78B,0xC78C,0xC78D,0xC78F,/* 0xE0-0xE7 */
+	0xC792,0xC793,0xC795,0xC799,0xC79B,0xC79C,0xC79D,0xC79E,/* 0xE8-0xEF */
+	0xC79F,0xC7A2,0xC7A7,0xC7A8,0xC7A9,0xC7AA,0xC7AB,0xC7AE,/* 0xF0-0xF7 */
+	0xC7AF,0xC7B1,0xC7B2,0xC7B3,0xC7B5,0xC7B6,0xC7B7,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_A0[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xC7B8,0xC7B9,0xC7BA,0xC7BB,0xC7BE,0xC7C2,0xC7C3,/* 0x40-0x47 */
+	0xC7C4,0xC7C5,0xC7C6,0xC7C7,0xC7CA,0xC7CB,0xC7CD,0xC7CF,/* 0x48-0x4F */
+	0xC7D1,0xC7D2,0xC7D3,0xC7D4,0xC7D5,0xC7D6,0xC7D7,0xC7D9,/* 0x50-0x57 */
+	0xC7DA,0xC7DB,0xC7DC,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xC7DE,0xC7DF,0xC7E0,0xC7E1,0xC7E2,0xC7E3,0xC7E5,/* 0x60-0x67 */
+	0xC7E6,0xC7E7,0xC7E9,0xC7EA,0xC7EB,0xC7ED,0xC7EE,0xC7EF,/* 0x68-0x6F */
+	0xC7F0,0xC7F1,0xC7F2,0xC7F3,0xC7F4,0xC7F5,0xC7F6,0xC7F7,/* 0x70-0x77 */
+	0xC7F8,0xC7F9,0xC7FA,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xC7FB,0xC7FC,0xC7FD,0xC7FE,0xC7FF,0xC802,0xC803,/* 0x80-0x87 */
+	0xC805,0xC806,0xC807,0xC809,0xC80B,0xC80C,0xC80D,0xC80E,/* 0x88-0x8F */
+	0xC80F,0xC812,0xC814,0xC817,0xC818,0xC819,0xC81A,0xC81B,/* 0x90-0x97 */
+	0xC81E,0xC81F,0xC821,0xC822,0xC823,0xC825,0xC826,0xC827,/* 0x98-0x9F */
+	0xC828,0xC829,0xC82A,0xC82B,0xC82E,0xC830,0xC832,0xC833,/* 0xA0-0xA7 */
+	0xC834,0xC835,0xC836,0xC837,0xC839,0xC83A,0xC83B,0xC83D,/* 0xA8-0xAF */
+	0xC83E,0xC83F,0xC841,0xC842,0xC843,0xC844,0xC845,0xC846,/* 0xB0-0xB7 */
+	0xC847,0xC84A,0xC84B,0xC84E,0xC84F,0xC850,0xC851,0xC852,/* 0xB8-0xBF */
+	0xC853,0xC855,0xC856,0xC857,0xC858,0xC859,0xC85A,0xC85B,/* 0xC0-0xC7 */
+	0xC85C,0xC85D,0xC85E,0xC85F,0xC860,0xC861,0xC862,0xC863,/* 0xC8-0xCF */
+	0xC864,0xC865,0xC866,0xC867,0xC868,0xC869,0xC86A,0xC86B,/* 0xD0-0xD7 */
+	0xC86C,0xC86D,0xC86E,0xC86F,0xC872,0xC873,0xC875,0xC876,/* 0xD8-0xDF */
+	0xC877,0xC879,0xC87B,0xC87C,0xC87D,0xC87E,0xC87F,0xC882,/* 0xE0-0xE7 */
+	0xC884,0xC888,0xC889,0xC88A,0xC88E,0xC88F,0xC890,0xC891,/* 0xE8-0xEF */
+	0xC892,0xC893,0xC895,0xC896,0xC897,0xC898,0xC899,0xC89A,/* 0xF0-0xF7 */
+	0xC89B,0xC89C,0xC89E,0xC8A0,0xC8A2,0xC8A3,0xC8A4,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_A1[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xC8A5,0xC8A6,0xC8A7,0xC8A9,0xC8AA,0xC8AB,0xC8AC,/* 0x40-0x47 */
+	0xC8AD,0xC8AE,0xC8AF,0xC8B0,0xC8B1,0xC8B2,0xC8B3,0xC8B4,/* 0x48-0x4F */
+	0xC8B5,0xC8B6,0xC8B7,0xC8B8,0xC8B9,0xC8BA,0xC8BB,0xC8BE,/* 0x50-0x57 */
+	0xC8BF,0xC8C0,0xC8C1,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xC8C2,0xC8C3,0xC8C5,0xC8C6,0xC8C7,0xC8C9,0xC8CA,/* 0x60-0x67 */
+	0xC8CB,0xC8CD,0xC8CE,0xC8CF,0xC8D0,0xC8D1,0xC8D2,0xC8D3,/* 0x68-0x6F */
+	0xC8D6,0xC8D8,0xC8DA,0xC8DB,0xC8DC,0xC8DD,0xC8DE,0xC8DF,/* 0x70-0x77 */
+	0xC8E2,0xC8E3,0xC8E5,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xC8E6,0xC8E7,0xC8E8,0xC8E9,0xC8EA,0xC8EB,0xC8EC,/* 0x80-0x87 */
+	0xC8ED,0xC8EE,0xC8EF,0xC8F0,0xC8F1,0xC8F2,0xC8F3,0xC8F4,/* 0x88-0x8F */
+	0xC8F6,0xC8F7,0xC8F8,0xC8F9,0xC8FA,0xC8FB,0xC8FE,0xC8FF,/* 0x90-0x97 */
+	0xC901,0xC902,0xC903,0xC907,0xC908,0xC909,0xC90A,0xC90B,/* 0x98-0x9F */
+	0xC90E,0x3000,0x3001,0x3002,0x00B7,0x2025,0x2026,0x00A8,/* 0xA0-0xA7 */
+	0x3003,0x00AD,0x2015,0x2225,0xFF3C,0x223C,0x2018,0x2019,/* 0xA8-0xAF */
+	0x201C,0x201D,0x3014,0x3015,0x3008,0x3009,0x300A,0x300B,/* 0xB0-0xB7 */
+	0x300C,0x300D,0x300E,0x300F,0x3010,0x3011,0x00B1,0x00D7,/* 0xB8-0xBF */
+	0x00F7,0x2260,0x2264,0x2265,0x221E,0x2234,0x00B0,0x2032,/* 0xC0-0xC7 */
+	0x2033,0x2103,0x212B,0xFFE0,0xFFE1,0xFFE5,0x2642,0x2640,/* 0xC8-0xCF */
+	0x2220,0x22A5,0x2312,0x2202,0x2207,0x2261,0x2252,0x00A7,/* 0xD0-0xD7 */
+	0x203B,0x2606,0x2605,0x25CB,0x25CF,0x25CE,0x25C7,0x25C6,/* 0xD8-0xDF */
+	0x25A1,0x25A0,0x25B3,0x25B2,0x25BD,0x25BC,0x2192,0x2190,/* 0xE0-0xE7 */
+	0x2191,0x2193,0x2194,0x3013,0x226A,0x226B,0x221A,0x223D,/* 0xE8-0xEF */
+	0x221D,0x2235,0x222B,0x222C,0x2208,0x220B,0x2286,0x2287,/* 0xF0-0xF7 */
+	0x2282,0x2283,0x222A,0x2229,0x2227,0x2228,0xFFE2,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_A2[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xC910,0xC912,0xC913,0xC914,0xC915,0xC916,0xC917,/* 0x40-0x47 */
+	0xC919,0xC91A,0xC91B,0xC91C,0xC91D,0xC91E,0xC91F,0xC920,/* 0x48-0x4F */
+	0xC921,0xC922,0xC923,0xC924,0xC925,0xC926,0xC927,0xC928,/* 0x50-0x57 */
+	0xC929,0xC92A,0xC92B,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xC92D,0xC92E,0xC92F,0xC930,0xC931,0xC932,0xC933,/* 0x60-0x67 */
+	0xC935,0xC936,0xC937,0xC938,0xC939,0xC93A,0xC93B,0xC93C,/* 0x68-0x6F */
+	0xC93D,0xC93E,0xC93F,0xC940,0xC941,0xC942,0xC943,0xC944,/* 0x70-0x77 */
+	0xC945,0xC946,0xC947,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xC948,0xC949,0xC94A,0xC94B,0xC94C,0xC94D,0xC94E,/* 0x80-0x87 */
+	0xC94F,0xC952,0xC953,0xC955,0xC956,0xC957,0xC959,0xC95A,/* 0x88-0x8F */
+	0xC95B,0xC95C,0xC95D,0xC95E,0xC95F,0xC962,0xC964,0xC965,/* 0x90-0x97 */
+	0xC966,0xC967,0xC968,0xC969,0xC96A,0xC96B,0xC96D,0xC96E,/* 0x98-0x9F */
+	0xC96F,0x21D2,0x21D4,0x2200,0x2203,0x00B4,0xFF5E,0x02C7,/* 0xA0-0xA7 */
+	0x02D8,0x02DD,0x02DA,0x02D9,0x00B8,0x02DB,0x00A1,0x00BF,/* 0xA8-0xAF */
+	0x02D0,0x222E,0x2211,0x220F,0x00A4,0x2109,0x2030,0x25C1,/* 0xB0-0xB7 */
+	0x25C0,0x25B7,0x25B6,0x2664,0x2660,0x2661,0x2665,0x2667,/* 0xB8-0xBF */
+	0x2663,0x2299,0x25C8,0x25A3,0x25D0,0x25D1,0x2592,0x25A4,/* 0xC0-0xC7 */
+	0x25A5,0x25A8,0x25A7,0x25A6,0x25A9,0x2668,0x260F,0x260E,/* 0xC8-0xCF */
+	0x261C,0x261E,0x00B6,0x2020,0x2021,0x2195,0x2197,0x2199,/* 0xD0-0xD7 */
+	0x2196,0x2198,0x266D,0x2669,0x266A,0x266C,0x327F,0x321C,/* 0xD8-0xDF */
+	0x2116,0x33C7,0x2122,0x33C2,0x33D8,0x2121,0x0000,0x0000,/* 0xE0-0xE7 */
+};
+
+static wchar_t c2u_A3[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xC971,0xC972,0xC973,0xC975,0xC976,0xC977,0xC978,/* 0x40-0x47 */
+	0xC979,0xC97A,0xC97B,0xC97D,0xC97E,0xC97F,0xC980,0xC981,/* 0x48-0x4F */
+	0xC982,0xC983,0xC984,0xC985,0xC986,0xC987,0xC98A,0xC98B,/* 0x50-0x57 */
+	0xC98D,0xC98E,0xC98F,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xC991,0xC992,0xC993,0xC994,0xC995,0xC996,0xC997,/* 0x60-0x67 */
+	0xC99A,0xC99C,0xC99E,0xC99F,0xC9A0,0xC9A1,0xC9A2,0xC9A3,/* 0x68-0x6F */
+	0xC9A4,0xC9A5,0xC9A6,0xC9A7,0xC9A8,0xC9A9,0xC9AA,0xC9AB,/* 0x70-0x77 */
+	0xC9AC,0xC9AD,0xC9AE,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xC9AF,0xC9B0,0xC9B1,0xC9B2,0xC9B3,0xC9B4,0xC9B5,/* 0x80-0x87 */
+	0xC9B6,0xC9B7,0xC9B8,0xC9B9,0xC9BA,0xC9BB,0xC9BC,0xC9BD,/* 0x88-0x8F */
+	0xC9BE,0xC9BF,0xC9C2,0xC9C3,0xC9C5,0xC9C6,0xC9C9,0xC9CB,/* 0x90-0x97 */
+	0xC9CC,0xC9CD,0xC9CE,0xC9CF,0xC9D2,0xC9D4,0xC9D7,0xC9D8,/* 0x98-0x9F */
+	0xC9DB,0xFF01,0xFF02,0xFF03,0xFF04,0xFF05,0xFF06,0xFF07,/* 0xA0-0xA7 */
+	0xFF08,0xFF09,0xFF0A,0xFF0B,0xFF0C,0xFF0D,0xFF0E,0xFF0F,/* 0xA8-0xAF */
+	0xFF10,0xFF11,0xFF12,0xFF13,0xFF14,0xFF15,0xFF16,0xFF17,/* 0xB0-0xB7 */
+	0xFF18,0xFF19,0xFF1A,0xFF1B,0xFF1C,0xFF1D,0xFF1E,0xFF1F,/* 0xB8-0xBF */
+	0xFF20,0xFF21,0xFF22,0xFF23,0xFF24,0xFF25,0xFF26,0xFF27,/* 0xC0-0xC7 */
+	0xFF28,0xFF29,0xFF2A,0xFF2B,0xFF2C,0xFF2D,0xFF2E,0xFF2F,/* 0xC8-0xCF */
+	0xFF30,0xFF31,0xFF32,0xFF33,0xFF34,0xFF35,0xFF36,0xFF37,/* 0xD0-0xD7 */
+	0xFF38,0xFF39,0xFF3A,0xFF3B,0xFFE6,0xFF3D,0xFF3E,0xFF3F,/* 0xD8-0xDF */
+	0xFF40,0xFF41,0xFF42,0xFF43,0xFF44,0xFF45,0xFF46,0xFF47,/* 0xE0-0xE7 */
+	0xFF48,0xFF49,0xFF4A,0xFF4B,0xFF4C,0xFF4D,0xFF4E,0xFF4F,/* 0xE8-0xEF */
+	0xFF50,0xFF51,0xFF52,0xFF53,0xFF54,0xFF55,0xFF56,0xFF57,/* 0xF0-0xF7 */
+	0xFF58,0xFF59,0xFF5A,0xFF5B,0xFF5C,0xFF5D,0xFFE3,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_A4[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xC9DE,0xC9DF,0xC9E1,0xC9E3,0xC9E5,0xC9E6,0xC9E8,/* 0x40-0x47 */
+	0xC9E9,0xC9EA,0xC9EB,0xC9EE,0xC9F2,0xC9F3,0xC9F4,0xC9F5,/* 0x48-0x4F */
+	0xC9F6,0xC9F7,0xC9FA,0xC9FB,0xC9FD,0xC9FE,0xC9FF,0xCA01,/* 0x50-0x57 */
+	0xCA02,0xCA03,0xCA04,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xCA05,0xCA06,0xCA07,0xCA0A,0xCA0E,0xCA0F,0xCA10,/* 0x60-0x67 */
+	0xCA11,0xCA12,0xCA13,0xCA15,0xCA16,0xCA17,0xCA19,0xCA1A,/* 0x68-0x6F */
+	0xCA1B,0xCA1C,0xCA1D,0xCA1E,0xCA1F,0xCA20,0xCA21,0xCA22,/* 0x70-0x77 */
+	0xCA23,0xCA24,0xCA25,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xCA26,0xCA27,0xCA28,0xCA2A,0xCA2B,0xCA2C,0xCA2D,/* 0x80-0x87 */
+	0xCA2E,0xCA2F,0xCA30,0xCA31,0xCA32,0xCA33,0xCA34,0xCA35,/* 0x88-0x8F */
+	0xCA36,0xCA37,0xCA38,0xCA39,0xCA3A,0xCA3B,0xCA3C,0xCA3D,/* 0x90-0x97 */
+	0xCA3E,0xCA3F,0xCA40,0xCA41,0xCA42,0xCA43,0xCA44,0xCA45,/* 0x98-0x9F */
+	0xCA46,0xFFA1,0xFFA2,0xFFA3,0xFFA4,0xFFA5,0xFFA6,0xFFA7,/* 0xA0-0xA7 */
+	0xFFA8,0xFFA9,0xFFAA,0xFFAB,0xFFAC,0xFFAD,0xFFAE,0xFFAF,/* 0xA8-0xAF */
+	0xFFB0,0xFFB1,0xFFB2,0xFFB3,0xFFB4,0xFFB5,0xFFB6,0xFFB7,/* 0xB0-0xB7 */
+	0xFFB8,0xFFB9,0xFFBA,0xFFBB,0xFFBC,0xFFBD,0xFFBE,0xFFC2,/* 0xB8-0xBF */
+	0xFFC3,0xFFC4,0xFFC5,0xFFC6,0xFFC7,0xFFCA,0xFFCB,0xFFCC,/* 0xC0-0xC7 */
+	0xFFCD,0xFFCE,0xFFCF,0xFFD2,0xFFD3,0xFFD4,0xFFD5,0xFFD6,/* 0xC8-0xCF */
+	0xFFD7,0xFFDA,0xFFDB,0xFFDC,0xFFA0,0x3165,0x3166,0x3167,/* 0xD0-0xD7 */
+	0x3168,0x3169,0x316A,0x316B,0x316C,0x316D,0x316E,0x316F,/* 0xD8-0xDF */
+	0x3170,0x3171,0x3172,0x3173,0x3174,0x3175,0x3176,0x3177,/* 0xE0-0xE7 */
+	0x3178,0x3179,0x317A,0x317B,0x317C,0x317D,0x317E,0x317F,/* 0xE8-0xEF */
+	0x3180,0x3181,0x3182,0x3183,0x3184,0x3185,0x3186,0x3187,/* 0xF0-0xF7 */
+	0x3188,0x3189,0x318A,0x318B,0x318C,0x318D,0x318E,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_A5[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xCA47,0xCA48,0xCA49,0xCA4A,0xCA4B,0xCA4E,0xCA4F,/* 0x40-0x47 */
+	0xCA51,0xCA52,0xCA53,0xCA55,0xCA56,0xCA57,0xCA58,0xCA59,/* 0x48-0x4F */
+	0xCA5A,0xCA5B,0xCA5E,0xCA62,0xCA63,0xCA64,0xCA65,0xCA66,/* 0x50-0x57 */
+	0xCA67,0xCA69,0xCA6A,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xCA6B,0xCA6C,0xCA6D,0xCA6E,0xCA6F,0xCA70,0xCA71,/* 0x60-0x67 */
+	0xCA72,0xCA73,0xCA74,0xCA75,0xCA76,0xCA77,0xCA78,0xCA79,/* 0x68-0x6F */
+	0xCA7A,0xCA7B,0xCA7C,0xCA7E,0xCA7F,0xCA80,0xCA81,0xCA82,/* 0x70-0x77 */
+	0xCA83,0xCA85,0xCA86,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xCA87,0xCA88,0xCA89,0xCA8A,0xCA8B,0xCA8C,0xCA8D,/* 0x80-0x87 */
+	0xCA8E,0xCA8F,0xCA90,0xCA91,0xCA92,0xCA93,0xCA94,0xCA95,/* 0x88-0x8F */
+	0xCA96,0xCA97,0xCA99,0xCA9A,0xCA9B,0xCA9C,0xCA9D,0xCA9E,/* 0x90-0x97 */
+	0xCA9F,0xCAA0,0xCAA1,0xCAA2,0xCAA3,0xCAA4,0xCAA5,0xCAA6,/* 0x98-0x9F */
+	0xCAA7,0x2170,0x2171,0x2172,0x2173,0x2174,0x2175,0x2176,/* 0xA0-0xA7 */
+	0x2177,0x2178,0x2179,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xA8-0xAF */
+	0x2160,0x2161,0x2162,0x2163,0x2164,0x2165,0x2166,0x2167,/* 0xB0-0xB7 */
+	0x2168,0x2169,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xB8-0xBF */
+	0x0000,0x0391,0x0392,0x0393,0x0394,0x0395,0x0396,0x0397,/* 0xC0-0xC7 */
+	0x0398,0x0399,0x039A,0x039B,0x039C,0x039D,0x039E,0x039F,/* 0xC8-0xCF */
+	0x03A0,0x03A1,0x03A3,0x03A4,0x03A5,0x03A6,0x03A7,0x03A8,/* 0xD0-0xD7 */
+	0x03A9,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xD8-0xDF */
+	0x0000,0x03B1,0x03B2,0x03B3,0x03B4,0x03B5,0x03B6,0x03B7,/* 0xE0-0xE7 */
+	0x03B8,0x03B9,0x03BA,0x03BB,0x03BC,0x03BD,0x03BE,0x03BF,/* 0xE8-0xEF */
+	0x03C0,0x03C1,0x03C3,0x03C4,0x03C5,0x03C6,0x03C7,0x03C8,/* 0xF0-0xF7 */
+	0x03C9,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_A6[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xCAA8,0xCAA9,0xCAAA,0xCAAB,0xCAAC,0xCAAD,0xCAAE,/* 0x40-0x47 */
+	0xCAAF,0xCAB0,0xCAB1,0xCAB2,0xCAB3,0xCAB4,0xCAB5,0xCAB6,/* 0x48-0x4F */
+	0xCAB7,0xCAB8,0xCAB9,0xCABA,0xCABB,0xCABE,0xCABF,0xCAC1,/* 0x50-0x57 */
+	0xCAC2,0xCAC3,0xCAC5,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xCAC6,0xCAC7,0xCAC8,0xCAC9,0xCACA,0xCACB,0xCACE,/* 0x60-0x67 */
+	0xCAD0,0xCAD2,0xCAD4,0xCAD5,0xCAD6,0xCAD7,0xCADA,0xCADB,/* 0x68-0x6F */
+	0xCADC,0xCADD,0xCADE,0xCADF,0xCAE1,0xCAE2,0xCAE3,0xCAE4,/* 0x70-0x77 */
+	0xCAE5,0xCAE6,0xCAE7,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xCAE8,0xCAE9,0xCAEA,0xCAEB,0xCAED,0xCAEE,0xCAEF,/* 0x80-0x87 */
+	0xCAF0,0xCAF1,0xCAF2,0xCAF3,0xCAF5,0xCAF6,0xCAF7,0xCAF8,/* 0x88-0x8F */
+	0xCAF9,0xCAFA,0xCAFB,0xCAFC,0xCAFD,0xCAFE,0xCAFF,0xCB00,/* 0x90-0x97 */
+	0xCB01,0xCB02,0xCB03,0xCB04,0xCB05,0xCB06,0xCB07,0xCB09,/* 0x98-0x9F */
+	0xCB0A,0x2500,0x2502,0x250C,0x2510,0x2518,0x2514,0x251C,/* 0xA0-0xA7 */
+	0x252C,0x2524,0x2534,0x253C,0x2501,0x2503,0x250F,0x2513,/* 0xA8-0xAF */
+	0x251B,0x2517,0x2523,0x2533,0x252B,0x253B,0x254B,0x2520,/* 0xB0-0xB7 */
+	0x252F,0x2528,0x2537,0x253F,0x251D,0x2530,0x2525,0x2538,/* 0xB8-0xBF */
+	0x2542,0x2512,0x2511,0x251A,0x2519,0x2516,0x2515,0x250E,/* 0xC0-0xC7 */
+	0x250D,0x251E,0x251F,0x2521,0x2522,0x2526,0x2527,0x2529,/* 0xC8-0xCF */
+	0x252A,0x252D,0x252E,0x2531,0x2532,0x2535,0x2536,0x2539,/* 0xD0-0xD7 */
+	0x253A,0x253D,0x253E,0x2540,0x2541,0x2543,0x2544,0x2545,/* 0xD8-0xDF */
+	0x2546,0x2547,0x2548,0x2549,0x254A,0x0000,0x0000,0x0000,/* 0xE0-0xE7 */
+};
+
+static wchar_t c2u_A7[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xCB0B,0xCB0C,0xCB0D,0xCB0E,0xCB0F,0xCB11,0xCB12,/* 0x40-0x47 */
+	0xCB13,0xCB15,0xCB16,0xCB17,0xCB19,0xCB1A,0xCB1B,0xCB1C,/* 0x48-0x4F */
+	0xCB1D,0xCB1E,0xCB1F,0xCB22,0xCB23,0xCB24,0xCB25,0xCB26,/* 0x50-0x57 */
+	0xCB27,0xCB28,0xCB29,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xCB2A,0xCB2B,0xCB2C,0xCB2D,0xCB2E,0xCB2F,0xCB30,/* 0x60-0x67 */
+	0xCB31,0xCB32,0xCB33,0xCB34,0xCB35,0xCB36,0xCB37,0xCB38,/* 0x68-0x6F */
+	0xCB39,0xCB3A,0xCB3B,0xCB3C,0xCB3D,0xCB3E,0xCB3F,0xCB40,/* 0x70-0x77 */
+	0xCB42,0xCB43,0xCB44,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xCB45,0xCB46,0xCB47,0xCB4A,0xCB4B,0xCB4D,0xCB4E,/* 0x80-0x87 */
+	0xCB4F,0xCB51,0xCB52,0xCB53,0xCB54,0xCB55,0xCB56,0xCB57,/* 0x88-0x8F */
+	0xCB5A,0xCB5B,0xCB5C,0xCB5E,0xCB5F,0xCB60,0xCB61,0xCB62,/* 0x90-0x97 */
+	0xCB63,0xCB65,0xCB66,0xCB67,0xCB68,0xCB69,0xCB6A,0xCB6B,/* 0x98-0x9F */
+	0xCB6C,0x3395,0x3396,0x3397,0x2113,0x3398,0x33C4,0x33A3,/* 0xA0-0xA7 */
+	0x33A4,0x33A5,0x33A6,0x3399,0x339A,0x339B,0x339C,0x339D,/* 0xA8-0xAF */
+	0x339E,0x339F,0x33A0,0x33A1,0x33A2,0x33CA,0x338D,0x338E,/* 0xB0-0xB7 */
+	0x338F,0x33CF,0x3388,0x3389,0x33C8,0x33A7,0x33A8,0x33B0,/* 0xB8-0xBF */
+	0x33B1,0x33B2,0x33B3,0x33B4,0x33B5,0x33B6,0x33B7,0x33B8,/* 0xC0-0xC7 */
+	0x33B9,0x3380,0x3381,0x3382,0x3383,0x3384,0x33BA,0x33BB,/* 0xC8-0xCF */
+	0x33BC,0x33BD,0x33BE,0x33BF,0x3390,0x3391,0x3392,0x3393,/* 0xD0-0xD7 */
+	0x3394,0x2126,0x33C0,0x33C1,0x338A,0x338B,0x338C,0x33D6,/* 0xD8-0xDF */
+	0x33C5,0x33AD,0x33AE,0x33AF,0x33DB,0x33A9,0x33AA,0x33AB,/* 0xE0-0xE7 */
+	0x33AC,0x33DD,0x33D0,0x33D3,0x33C3,0x33C9,0x33DC,0x33C6,/* 0xE8-0xEF */
+};
+
+static wchar_t c2u_A8[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xCB6D,0xCB6E,0xCB6F,0xCB70,0xCB71,0xCB72,0xCB73,/* 0x40-0x47 */
+	0xCB74,0xCB75,0xCB76,0xCB77,0xCB7A,0xCB7B,0xCB7C,0xCB7D,/* 0x48-0x4F */
+	0xCB7E,0xCB7F,0xCB80,0xCB81,0xCB82,0xCB83,0xCB84,0xCB85,/* 0x50-0x57 */
+	0xCB86,0xCB87,0xCB88,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xCB89,0xCB8A,0xCB8B,0xCB8C,0xCB8D,0xCB8E,0xCB8F,/* 0x60-0x67 */
+	0xCB90,0xCB91,0xCB92,0xCB93,0xCB94,0xCB95,0xCB96,0xCB97,/* 0x68-0x6F */
+	0xCB98,0xCB99,0xCB9A,0xCB9B,0xCB9D,0xCB9E,0xCB9F,0xCBA0,/* 0x70-0x77 */
+	0xCBA1,0xCBA2,0xCBA3,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xCBA4,0xCBA5,0xCBA6,0xCBA7,0xCBA8,0xCBA9,0xCBAA,/* 0x80-0x87 */
+	0xCBAB,0xCBAC,0xCBAD,0xCBAE,0xCBAF,0xCBB0,0xCBB1,0xCBB2,/* 0x88-0x8F */
+	0xCBB3,0xCBB4,0xCBB5,0xCBB6,0xCBB7,0xCBB9,0xCBBA,0xCBBB,/* 0x90-0x97 */
+	0xCBBC,0xCBBD,0xCBBE,0xCBBF,0xCBC0,0xCBC1,0xCBC2,0xCBC3,/* 0x98-0x9F */
+	0xCBC4,0x00C6,0x00D0,0x00AA,0x0126,0x0000,0x0132,0x0000,/* 0xA0-0xA7 */
+	0x013F,0x0141,0x00D8,0x0152,0x00BA,0x00DE,0x0166,0x014A,/* 0xA8-0xAF */
+	0x0000,0x3260,0x3261,0x3262,0x3263,0x3264,0x3265,0x3266,/* 0xB0-0xB7 */
+	0x3267,0x3268,0x3269,0x326A,0x326B,0x326C,0x326D,0x326E,/* 0xB8-0xBF */
+	0x326F,0x3270,0x3271,0x3272,0x3273,0x3274,0x3275,0x3276,/* 0xC0-0xC7 */
+	0x3277,0x3278,0x3279,0x327A,0x327B,0x24D0,0x24D1,0x24D2,/* 0xC8-0xCF */
+	0x24D3,0x24D4,0x24D5,0x24D6,0x24D7,0x24D8,0x24D9,0x24DA,/* 0xD0-0xD7 */
+	0x24DB,0x24DC,0x24DD,0x24DE,0x24DF,0x24E0,0x24E1,0x24E2,/* 0xD8-0xDF */
+	0x24E3,0x24E4,0x24E5,0x24E6,0x24E7,0x24E8,0x24E9,0x2460,/* 0xE0-0xE7 */
+	0x2461,0x2462,0x2463,0x2464,0x2465,0x2466,0x2467,0x2468,/* 0xE8-0xEF */
+	0x2469,0x246A,0x246B,0x246C,0x246D,0x246E,0x00BD,0x2153,/* 0xF0-0xF7 */
+	0x2154,0x00BC,0x00BE,0x215B,0x215C,0x215D,0x215E,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_A9[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xCBC5,0xCBC6,0xCBC7,0xCBC8,0xCBC9,0xCBCA,0xCBCB,/* 0x40-0x47 */
+	0xCBCC,0xCBCD,0xCBCE,0xCBCF,0xCBD0,0xCBD1,0xCBD2,0xCBD3,/* 0x48-0x4F */
+	0xCBD5,0xCBD6,0xCBD7,0xCBD8,0xCBD9,0xCBDA,0xCBDB,0xCBDC,/* 0x50-0x57 */
+	0xCBDD,0xCBDE,0xCBDF,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xCBE0,0xCBE1,0xCBE2,0xCBE3,0xCBE5,0xCBE6,0xCBE8,/* 0x60-0x67 */
+	0xCBEA,0xCBEB,0xCBEC,0xCBED,0xCBEE,0xCBEF,0xCBF0,0xCBF1,/* 0x68-0x6F */
+	0xCBF2,0xCBF3,0xCBF4,0xCBF5,0xCBF6,0xCBF7,0xCBF8,0xCBF9,/* 0x70-0x77 */
+	0xCBFA,0xCBFB,0xCBFC,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xCBFD,0xCBFE,0xCBFF,0xCC00,0xCC01,0xCC02,0xCC03,/* 0x80-0x87 */
+	0xCC04,0xCC05,0xCC06,0xCC07,0xCC08,0xCC09,0xCC0A,0xCC0B,/* 0x88-0x8F */
+	0xCC0E,0xCC0F,0xCC11,0xCC12,0xCC13,0xCC15,0xCC16,0xCC17,/* 0x90-0x97 */
+	0xCC18,0xCC19,0xCC1A,0xCC1B,0xCC1E,0xCC1F,0xCC20,0xCC23,/* 0x98-0x9F */
+	0xCC24,0x00E6,0x0111,0x00F0,0x0127,0x0131,0x0133,0x0138,/* 0xA0-0xA7 */
+	0x0140,0x0142,0x00F8,0x0153,0x00DF,0x00FE,0x0167,0x014B,/* 0xA8-0xAF */
+	0x0149,0x3200,0x3201,0x3202,0x3203,0x3204,0x3205,0x3206,/* 0xB0-0xB7 */
+	0x3207,0x3208,0x3209,0x320A,0x320B,0x320C,0x320D,0x320E,/* 0xB8-0xBF */
+	0x320F,0x3210,0x3211,0x3212,0x3213,0x3214,0x3215,0x3216,/* 0xC0-0xC7 */
+	0x3217,0x3218,0x3219,0x321A,0x321B,0x249C,0x249D,0x249E,/* 0xC8-0xCF */
+	0x249F,0x24A0,0x24A1,0x24A2,0x24A3,0x24A4,0x24A5,0x24A6,/* 0xD0-0xD7 */
+	0x24A7,0x24A8,0x24A9,0x24AA,0x24AB,0x24AC,0x24AD,0x24AE,/* 0xD8-0xDF */
+	0x24AF,0x24B0,0x24B1,0x24B2,0x24B3,0x24B4,0x24B5,0x2474,/* 0xE0-0xE7 */
+	0x2475,0x2476,0x2477,0x2478,0x2479,0x247A,0x247B,0x247C,/* 0xE8-0xEF */
+	0x247D,0x247E,0x247F,0x2480,0x2481,0x2482,0x00B9,0x00B2,/* 0xF0-0xF7 */
+	0x00B3,0x2074,0x207F,0x2081,0x2082,0x2083,0x2084,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_AA[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xCC25,0xCC26,0xCC2A,0xCC2B,0xCC2D,0xCC2F,0xCC31,/* 0x40-0x47 */
+	0xCC32,0xCC33,0xCC34,0xCC35,0xCC36,0xCC37,0xCC3A,0xCC3F,/* 0x48-0x4F */
+	0xCC40,0xCC41,0xCC42,0xCC43,0xCC46,0xCC47,0xCC49,0xCC4A,/* 0x50-0x57 */
+	0xCC4B,0xCC4D,0xCC4E,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xCC4F,0xCC50,0xCC51,0xCC52,0xCC53,0xCC56,0xCC5A,/* 0x60-0x67 */
+	0xCC5B,0xCC5C,0xCC5D,0xCC5E,0xCC5F,0xCC61,0xCC62,0xCC63,/* 0x68-0x6F */
+	0xCC65,0xCC67,0xCC69,0xCC6A,0xCC6B,0xCC6C,0xCC6D,0xCC6E,/* 0x70-0x77 */
+	0xCC6F,0xCC71,0xCC72,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xCC73,0xCC74,0xCC76,0xCC77,0xCC78,0xCC79,0xCC7A,/* 0x80-0x87 */
+	0xCC7B,0xCC7C,0xCC7D,0xCC7E,0xCC7F,0xCC80,0xCC81,0xCC82,/* 0x88-0x8F */
+	0xCC83,0xCC84,0xCC85,0xCC86,0xCC87,0xCC88,0xCC89,0xCC8A,/* 0x90-0x97 */
+	0xCC8B,0xCC8C,0xCC8D,0xCC8E,0xCC8F,0xCC90,0xCC91,0xCC92,/* 0x98-0x9F */
+	0xCC93,0x3041,0x3042,0x3043,0x3044,0x3045,0x3046,0x3047,/* 0xA0-0xA7 */
+	0x3048,0x3049,0x304A,0x304B,0x304C,0x304D,0x304E,0x304F,/* 0xA8-0xAF */
+	0x3050,0x3051,0x3052,0x3053,0x3054,0x3055,0x3056,0x3057,/* 0xB0-0xB7 */
+	0x3058,0x3059,0x305A,0x305B,0x305C,0x305D,0x305E,0x305F,/* 0xB8-0xBF */
+	0x3060,0x3061,0x3062,0x3063,0x3064,0x3065,0x3066,0x3067,/* 0xC0-0xC7 */
+	0x3068,0x3069,0x306A,0x306B,0x306C,0x306D,0x306E,0x306F,/* 0xC8-0xCF */
+	0x3070,0x3071,0x3072,0x3073,0x3074,0x3075,0x3076,0x3077,/* 0xD0-0xD7 */
+	0x3078,0x3079,0x307A,0x307B,0x307C,0x307D,0x307E,0x307F,/* 0xD8-0xDF */
+	0x3080,0x3081,0x3082,0x3083,0x3084,0x3085,0x3086,0x3087,/* 0xE0-0xE7 */
+	0x3088,0x3089,0x308A,0x308B,0x308C,0x308D,0x308E,0x308F,/* 0xE8-0xEF */
+	0x3090,0x3091,0x3092,0x3093,0x0000,0x0000,0x0000,0x0000,/* 0xF0-0xF7 */
+};
+
+static wchar_t c2u_AB[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xCC94,0xCC95,0xCC96,0xCC97,0xCC9A,0xCC9B,0xCC9D,/* 0x40-0x47 */
+	0xCC9E,0xCC9F,0xCCA1,0xCCA2,0xCCA3,0xCCA4,0xCCA5,0xCCA6,/* 0x48-0x4F */
+	0xCCA7,0xCCAA,0xCCAE,0xCCAF,0xCCB0,0xCCB1,0xCCB2,0xCCB3,/* 0x50-0x57 */
+	0xCCB6,0xCCB7,0xCCB9,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xCCBA,0xCCBB,0xCCBD,0xCCBE,0xCCBF,0xCCC0,0xCCC1,/* 0x60-0x67 */
+	0xCCC2,0xCCC3,0xCCC6,0xCCC8,0xCCCA,0xCCCB,0xCCCC,0xCCCD,/* 0x68-0x6F */
+	0xCCCE,0xCCCF,0xCCD1,0xCCD2,0xCCD3,0xCCD5,0xCCD6,0xCCD7,/* 0x70-0x77 */
+	0xCCD8,0xCCD9,0xCCDA,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xCCDB,0xCCDC,0xCCDD,0xCCDE,0xCCDF,0xCCE0,0xCCE1,/* 0x80-0x87 */
+	0xCCE2,0xCCE3,0xCCE5,0xCCE6,0xCCE7,0xCCE8,0xCCE9,0xCCEA,/* 0x88-0x8F */
+	0xCCEB,0xCCED,0xCCEE,0xCCEF,0xCCF1,0xCCF2,0xCCF3,0xCCF4,/* 0x90-0x97 */
+	0xCCF5,0xCCF6,0xCCF7,0xCCF8,0xCCF9,0xCCFA,0xCCFB,0xCCFC,/* 0x98-0x9F */
+	0xCCFD,0x30A1,0x30A2,0x30A3,0x30A4,0x30A5,0x30A6,0x30A7,/* 0xA0-0xA7 */
+	0x30A8,0x30A9,0x30AA,0x30AB,0x30AC,0x30AD,0x30AE,0x30AF,/* 0xA8-0xAF */
+	0x30B0,0x30B1,0x30B2,0x30B3,0x30B4,0x30B5,0x30B6,0x30B7,/* 0xB0-0xB7 */
+	0x30B8,0x30B9,0x30BA,0x30BB,0x30BC,0x30BD,0x30BE,0x30BF,/* 0xB8-0xBF */
+	0x30C0,0x30C1,0x30C2,0x30C3,0x30C4,0x30C5,0x30C6,0x30C7,/* 0xC0-0xC7 */
+	0x30C8,0x30C9,0x30CA,0x30CB,0x30CC,0x30CD,0x30CE,0x30CF,/* 0xC8-0xCF */
+	0x30D0,0x30D1,0x30D2,0x30D3,0x30D4,0x30D5,0x30D6,0x30D7,/* 0xD0-0xD7 */
+	0x30D8,0x30D9,0x30DA,0x30DB,0x30DC,0x30DD,0x30DE,0x30DF,/* 0xD8-0xDF */
+	0x30E0,0x30E1,0x30E2,0x30E3,0x30E4,0x30E5,0x30E6,0x30E7,/* 0xE0-0xE7 */
+	0x30E8,0x30E9,0x30EA,0x30EB,0x30EC,0x30ED,0x30EE,0x30EF,/* 0xE8-0xEF */
+	0x30F0,0x30F1,0x30F2,0x30F3,0x30F4,0x30F5,0x30F6,0x0000,/* 0xF0-0xF7 */
+};
+
+static wchar_t c2u_AC[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xCCFE,0xCCFF,0xCD00,0xCD02,0xCD03,0xCD04,0xCD05,/* 0x40-0x47 */
+	0xCD06,0xCD07,0xCD0A,0xCD0B,0xCD0D,0xCD0E,0xCD0F,0xCD11,/* 0x48-0x4F */
+	0xCD12,0xCD13,0xCD14,0xCD15,0xCD16,0xCD17,0xCD1A,0xCD1C,/* 0x50-0x57 */
+	0xCD1E,0xCD1F,0xCD20,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xCD21,0xCD22,0xCD23,0xCD25,0xCD26,0xCD27,0xCD29,/* 0x60-0x67 */
+	0xCD2A,0xCD2B,0xCD2D,0xCD2E,0xCD2F,0xCD30,0xCD31,0xCD32,/* 0x68-0x6F */
+	0xCD33,0xCD34,0xCD35,0xCD36,0xCD37,0xCD38,0xCD3A,0xCD3B,/* 0x70-0x77 */
+	0xCD3C,0xCD3D,0xCD3E,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xCD3F,0xCD40,0xCD41,0xCD42,0xCD43,0xCD44,0xCD45,/* 0x80-0x87 */
+	0xCD46,0xCD47,0xCD48,0xCD49,0xCD4A,0xCD4B,0xCD4C,0xCD4D,/* 0x88-0x8F */
+	0xCD4E,0xCD4F,0xCD50,0xCD51,0xCD52,0xCD53,0xCD54,0xCD55,/* 0x90-0x97 */
+	0xCD56,0xCD57,0xCD58,0xCD59,0xCD5A,0xCD5B,0xCD5D,0xCD5E,/* 0x98-0x9F */
+	0xCD5F,0x0410,0x0411,0x0412,0x0413,0x0414,0x0415,0x0401,/* 0xA0-0xA7 */
+	0x0416,0x0417,0x0418,0x0419,0x041A,0x041B,0x041C,0x041D,/* 0xA8-0xAF */
+	0x041E,0x041F,0x0420,0x0421,0x0422,0x0423,0x0424,0x0425,/* 0xB0-0xB7 */
+	0x0426,0x0427,0x0428,0x0429,0x042A,0x042B,0x042C,0x042D,/* 0xB8-0xBF */
+	0x042E,0x042F,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xC0-0xC7 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xC8-0xCF */
+	0x0000,0x0430,0x0431,0x0432,0x0433,0x0434,0x0435,0x0451,/* 0xD0-0xD7 */
+	0x0436,0x0437,0x0438,0x0439,0x043A,0x043B,0x043C,0x043D,/* 0xD8-0xDF */
+	0x043E,0x043F,0x0440,0x0441,0x0442,0x0443,0x0444,0x0445,/* 0xE0-0xE7 */
+	0x0446,0x0447,0x0448,0x0449,0x044A,0x044B,0x044C,0x044D,/* 0xE8-0xEF */
+	0x044E,0x044F,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xF0-0xF7 */
+};
+
+static wchar_t c2u_AD[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xCD61,0xCD62,0xCD63,0xCD65,0xCD66,0xCD67,0xCD68,/* 0x40-0x47 */
+	0xCD69,0xCD6A,0xCD6B,0xCD6E,0xCD70,0xCD72,0xCD73,0xCD74,/* 0x48-0x4F */
+	0xCD75,0xCD76,0xCD77,0xCD79,0xCD7A,0xCD7B,0xCD7C,0xCD7D,/* 0x50-0x57 */
+	0xCD7E,0xCD7F,0xCD80,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xCD81,0xCD82,0xCD83,0xCD84,0xCD85,0xCD86,0xCD87,/* 0x60-0x67 */
+	0xCD89,0xCD8A,0xCD8B,0xCD8C,0xCD8D,0xCD8E,0xCD8F,0xCD90,/* 0x68-0x6F */
+	0xCD91,0xCD92,0xCD93,0xCD96,0xCD97,0xCD99,0xCD9A,0xCD9B,/* 0x70-0x77 */
+	0xCD9D,0xCD9E,0xCD9F,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xCDA0,0xCDA1,0xCDA2,0xCDA3,0xCDA6,0xCDA8,0xCDAA,/* 0x80-0x87 */
+	0xCDAB,0xCDAC,0xCDAD,0xCDAE,0xCDAF,0xCDB1,0xCDB2,0xCDB3,/* 0x88-0x8F */
+	0xCDB4,0xCDB5,0xCDB6,0xCDB7,0xCDB8,0xCDB9,0xCDBA,0xCDBB,/* 0x90-0x97 */
+	0xCDBC,0xCDBD,0xCDBE,0xCDBF,0xCDC0,0xCDC1,0xCDC2,0xCDC3,/* 0x98-0x9F */
+	0xCDC5,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xA0-0xA7 */
+};
+
+static wchar_t c2u_AE[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xCDC6,0xCDC7,0xCDC8,0xCDC9,0xCDCA,0xCDCB,0xCDCD,/* 0x40-0x47 */
+	0xCDCE,0xCDCF,0xCDD1,0xCDD2,0xCDD3,0xCDD4,0xCDD5,0xCDD6,/* 0x48-0x4F */
+	0xCDD7,0xCDD8,0xCDD9,0xCDDA,0xCDDB,0xCDDC,0xCDDD,0xCDDE,/* 0x50-0x57 */
+	0xCDDF,0xCDE0,0xCDE1,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xCDE2,0xCDE3,0xCDE4,0xCDE5,0xCDE6,0xCDE7,0xCDE9,/* 0x60-0x67 */
+	0xCDEA,0xCDEB,0xCDED,0xCDEE,0xCDEF,0xCDF1,0xCDF2,0xCDF3,/* 0x68-0x6F */
+	0xCDF4,0xCDF5,0xCDF6,0xCDF7,0xCDFA,0xCDFC,0xCDFE,0xCDFF,/* 0x70-0x77 */
+	0xCE00,0xCE01,0xCE02,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xCE03,0xCE05,0xCE06,0xCE07,0xCE09,0xCE0A,0xCE0B,/* 0x80-0x87 */
+	0xCE0D,0xCE0E,0xCE0F,0xCE10,0xCE11,0xCE12,0xCE13,0xCE15,/* 0x88-0x8F */
+	0xCE16,0xCE17,0xCE18,0xCE1A,0xCE1B,0xCE1C,0xCE1D,0xCE1E,/* 0x90-0x97 */
+	0xCE1F,0xCE22,0xCE23,0xCE25,0xCE26,0xCE27,0xCE29,0xCE2A,/* 0x98-0x9F */
+	0xCE2B,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xA0-0xA7 */
+};
+
+static wchar_t c2u_AF[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xCE2C,0xCE2D,0xCE2E,0xCE2F,0xCE32,0xCE34,0xCE36,/* 0x40-0x47 */
+	0xCE37,0xCE38,0xCE39,0xCE3A,0xCE3B,0xCE3C,0xCE3D,0xCE3E,/* 0x48-0x4F */
+	0xCE3F,0xCE40,0xCE41,0xCE42,0xCE43,0xCE44,0xCE45,0xCE46,/* 0x50-0x57 */
+	0xCE47,0xCE48,0xCE49,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xCE4A,0xCE4B,0xCE4C,0xCE4D,0xCE4E,0xCE4F,0xCE50,/* 0x60-0x67 */
+	0xCE51,0xCE52,0xCE53,0xCE54,0xCE55,0xCE56,0xCE57,0xCE5A,/* 0x68-0x6F */
+	0xCE5B,0xCE5D,0xCE5E,0xCE62,0xCE63,0xCE64,0xCE65,0xCE66,/* 0x70-0x77 */
+	0xCE67,0xCE6A,0xCE6C,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xCE6E,0xCE6F,0xCE70,0xCE71,0xCE72,0xCE73,0xCE76,/* 0x80-0x87 */
+	0xCE77,0xCE79,0xCE7A,0xCE7B,0xCE7D,0xCE7E,0xCE7F,0xCE80,/* 0x88-0x8F */
+	0xCE81,0xCE82,0xCE83,0xCE86,0xCE88,0xCE8A,0xCE8B,0xCE8C,/* 0x90-0x97 */
+	0xCE8D,0xCE8E,0xCE8F,0xCE92,0xCE93,0xCE95,0xCE96,0xCE97,/* 0x98-0x9F */
+	0xCE99,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xA0-0xA7 */
+};
+
+static wchar_t c2u_B0[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xCE9A,0xCE9B,0xCE9C,0xCE9D,0xCE9E,0xCE9F,0xCEA2,/* 0x40-0x47 */
+	0xCEA6,0xCEA7,0xCEA8,0xCEA9,0xCEAA,0xCEAB,0xCEAE,0xCEAF,/* 0x48-0x4F */
+	0xCEB0,0xCEB1,0xCEB2,0xCEB3,0xCEB4,0xCEB5,0xCEB6,0xCEB7,/* 0x50-0x57 */
+	0xCEB8,0xCEB9,0xCEBA,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xCEBB,0xCEBC,0xCEBD,0xCEBE,0xCEBF,0xCEC0,0xCEC2,/* 0x60-0x67 */
+	0xCEC3,0xCEC4,0xCEC5,0xCEC6,0xCEC7,0xCEC8,0xCEC9,0xCECA,/* 0x68-0x6F */
+	0xCECB,0xCECC,0xCECD,0xCECE,0xCECF,0xCED0,0xCED1,0xCED2,/* 0x70-0x77 */
+	0xCED3,0xCED4,0xCED5,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xCED6,0xCED7,0xCED8,0xCED9,0xCEDA,0xCEDB,0xCEDC,/* 0x80-0x87 */
+	0xCEDD,0xCEDE,0xCEDF,0xCEE0,0xCEE1,0xCEE2,0xCEE3,0xCEE6,/* 0x88-0x8F */
+	0xCEE7,0xCEE9,0xCEEA,0xCEED,0xCEEE,0xCEEF,0xCEF0,0xCEF1,/* 0x90-0x97 */
+	0xCEF2,0xCEF3,0xCEF6,0xCEFA,0xCEFB,0xCEFC,0xCEFD,0xCEFE,/* 0x98-0x9F */
+	0xCEFF,0xAC00,0xAC01,0xAC04,0xAC07,0xAC08,0xAC09,0xAC0A,/* 0xA0-0xA7 */
+	0xAC10,0xAC11,0xAC12,0xAC13,0xAC14,0xAC15,0xAC16,0xAC17,/* 0xA8-0xAF */
+	0xAC19,0xAC1A,0xAC1B,0xAC1C,0xAC1D,0xAC20,0xAC24,0xAC2C,/* 0xB0-0xB7 */
+	0xAC2D,0xAC2F,0xAC30,0xAC31,0xAC38,0xAC39,0xAC3C,0xAC40,/* 0xB8-0xBF */
+	0xAC4B,0xAC4D,0xAC54,0xAC58,0xAC5C,0xAC70,0xAC71,0xAC74,/* 0xC0-0xC7 */
+	0xAC77,0xAC78,0xAC7A,0xAC80,0xAC81,0xAC83,0xAC84,0xAC85,/* 0xC8-0xCF */
+	0xAC86,0xAC89,0xAC8A,0xAC8B,0xAC8C,0xAC90,0xAC94,0xAC9C,/* 0xD0-0xD7 */
+	0xAC9D,0xAC9F,0xACA0,0xACA1,0xACA8,0xACA9,0xACAA,0xACAC,/* 0xD8-0xDF */
+	0xACAF,0xACB0,0xACB8,0xACB9,0xACBB,0xACBC,0xACBD,0xACC1,/* 0xE0-0xE7 */
+	0xACC4,0xACC8,0xACCC,0xACD5,0xACD7,0xACE0,0xACE1,0xACE4,/* 0xE8-0xEF */
+	0xACE7,0xACE8,0xACEA,0xACEC,0xACEF,0xACF0,0xACF1,0xACF3,/* 0xF0-0xF7 */
+	0xACF5,0xACF6,0xACFC,0xACFD,0xAD00,0xAD04,0xAD06,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_B1[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xCF02,0xCF03,0xCF05,0xCF06,0xCF07,0xCF09,0xCF0A,/* 0x40-0x47 */
+	0xCF0B,0xCF0C,0xCF0D,0xCF0E,0xCF0F,0xCF12,0xCF14,0xCF16,/* 0x48-0x4F */
+	0xCF17,0xCF18,0xCF19,0xCF1A,0xCF1B,0xCF1D,0xCF1E,0xCF1F,/* 0x50-0x57 */
+	0xCF21,0xCF22,0xCF23,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xCF25,0xCF26,0xCF27,0xCF28,0xCF29,0xCF2A,0xCF2B,/* 0x60-0x67 */
+	0xCF2E,0xCF32,0xCF33,0xCF34,0xCF35,0xCF36,0xCF37,0xCF39,/* 0x68-0x6F */
+	0xCF3A,0xCF3B,0xCF3C,0xCF3D,0xCF3E,0xCF3F,0xCF40,0xCF41,/* 0x70-0x77 */
+	0xCF42,0xCF43,0xCF44,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xCF45,0xCF46,0xCF47,0xCF48,0xCF49,0xCF4A,0xCF4B,/* 0x80-0x87 */
+	0xCF4C,0xCF4D,0xCF4E,0xCF4F,0xCF50,0xCF51,0xCF52,0xCF53,/* 0x88-0x8F */
+	0xCF56,0xCF57,0xCF59,0xCF5A,0xCF5B,0xCF5D,0xCF5E,0xCF5F,/* 0x90-0x97 */
+	0xCF60,0xCF61,0xCF62,0xCF63,0xCF66,0xCF68,0xCF6A,0xCF6B,/* 0x98-0x9F */
+	0xCF6C,0xAD0C,0xAD0D,0xAD0F,0xAD11,0xAD18,0xAD1C,0xAD20,/* 0xA0-0xA7 */
+	0xAD29,0xAD2C,0xAD2D,0xAD34,0xAD35,0xAD38,0xAD3C,0xAD44,/* 0xA8-0xAF */
+	0xAD45,0xAD47,0xAD49,0xAD50,0xAD54,0xAD58,0xAD61,0xAD63,/* 0xB0-0xB7 */
+	0xAD6C,0xAD6D,0xAD70,0xAD73,0xAD74,0xAD75,0xAD76,0xAD7B,/* 0xB8-0xBF */
+	0xAD7C,0xAD7D,0xAD7F,0xAD81,0xAD82,0xAD88,0xAD89,0xAD8C,/* 0xC0-0xC7 */
+	0xAD90,0xAD9C,0xAD9D,0xADA4,0xADB7,0xADC0,0xADC1,0xADC4,/* 0xC8-0xCF */
+	0xADC8,0xADD0,0xADD1,0xADD3,0xADDC,0xADE0,0xADE4,0xADF8,/* 0xD0-0xD7 */
+	0xADF9,0xADFC,0xADFF,0xAE00,0xAE01,0xAE08,0xAE09,0xAE0B,/* 0xD8-0xDF */
+	0xAE0D,0xAE14,0xAE30,0xAE31,0xAE34,0xAE37,0xAE38,0xAE3A,/* 0xE0-0xE7 */
+	0xAE40,0xAE41,0xAE43,0xAE45,0xAE46,0xAE4A,0xAE4C,0xAE4D,/* 0xE8-0xEF */
+	0xAE4E,0xAE50,0xAE54,0xAE56,0xAE5C,0xAE5D,0xAE5F,0xAE60,/* 0xF0-0xF7 */
+	0xAE61,0xAE65,0xAE68,0xAE69,0xAE6C,0xAE70,0xAE78,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_B2[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xCF6D,0xCF6E,0xCF6F,0xCF72,0xCF73,0xCF75,0xCF76,/* 0x40-0x47 */
+	0xCF77,0xCF79,0xCF7A,0xCF7B,0xCF7C,0xCF7D,0xCF7E,0xCF7F,/* 0x48-0x4F */
+	0xCF81,0xCF82,0xCF83,0xCF84,0xCF86,0xCF87,0xCF88,0xCF89,/* 0x50-0x57 */
+	0xCF8A,0xCF8B,0xCF8D,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xCF8E,0xCF8F,0xCF90,0xCF91,0xCF92,0xCF93,0xCF94,/* 0x60-0x67 */
+	0xCF95,0xCF96,0xCF97,0xCF98,0xCF99,0xCF9A,0xCF9B,0xCF9C,/* 0x68-0x6F */
+	0xCF9D,0xCF9E,0xCF9F,0xCFA0,0xCFA2,0xCFA3,0xCFA4,0xCFA5,/* 0x70-0x77 */
+	0xCFA6,0xCFA7,0xCFA9,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xCFAA,0xCFAB,0xCFAC,0xCFAD,0xCFAE,0xCFAF,0xCFB1,/* 0x80-0x87 */
+	0xCFB2,0xCFB3,0xCFB4,0xCFB5,0xCFB6,0xCFB7,0xCFB8,0xCFB9,/* 0x88-0x8F */
+	0xCFBA,0xCFBB,0xCFBC,0xCFBD,0xCFBE,0xCFBF,0xCFC0,0xCFC1,/* 0x90-0x97 */
+	0xCFC2,0xCFC3,0xCFC5,0xCFC6,0xCFC7,0xCFC8,0xCFC9,0xCFCA,/* 0x98-0x9F */
+	0xCFCB,0xAE79,0xAE7B,0xAE7C,0xAE7D,0xAE84,0xAE85,0xAE8C,/* 0xA0-0xA7 */
+	0xAEBC,0xAEBD,0xAEBE,0xAEC0,0xAEC4,0xAECC,0xAECD,0xAECF,/* 0xA8-0xAF */
+	0xAED0,0xAED1,0xAED8,0xAED9,0xAEDC,0xAEE8,0xAEEB,0xAEED,/* 0xB0-0xB7 */
+	0xAEF4,0xAEF8,0xAEFC,0xAF07,0xAF08,0xAF0D,0xAF10,0xAF2C,/* 0xB8-0xBF */
+	0xAF2D,0xAF30,0xAF32,0xAF34,0xAF3C,0xAF3D,0xAF3F,0xAF41,/* 0xC0-0xC7 */
+	0xAF42,0xAF43,0xAF48,0xAF49,0xAF50,0xAF5C,0xAF5D,0xAF64,/* 0xC8-0xCF */
+	0xAF65,0xAF79,0xAF80,0xAF84,0xAF88,0xAF90,0xAF91,0xAF95,/* 0xD0-0xD7 */
+	0xAF9C,0xAFB8,0xAFB9,0xAFBC,0xAFC0,0xAFC7,0xAFC8,0xAFC9,/* 0xD8-0xDF */
+	0xAFCB,0xAFCD,0xAFCE,0xAFD4,0xAFDC,0xAFE8,0xAFE9,0xAFF0,/* 0xE0-0xE7 */
+	0xAFF1,0xAFF4,0xAFF8,0xB000,0xB001,0xB004,0xB00C,0xB010,/* 0xE8-0xEF */
+	0xB014,0xB01C,0xB01D,0xB028,0xB044,0xB045,0xB048,0xB04A,/* 0xF0-0xF7 */
+	0xB04C,0xB04E,0xB053,0xB054,0xB055,0xB057,0xB059,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_B3[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xCFCC,0xCFCD,0xCFCE,0xCFCF,0xCFD0,0xCFD1,0xCFD2,/* 0x40-0x47 */
+	0xCFD3,0xCFD4,0xCFD5,0xCFD6,0xCFD7,0xCFD8,0xCFD9,0xCFDA,/* 0x48-0x4F */
+	0xCFDB,0xCFDC,0xCFDD,0xCFDE,0xCFDF,0xCFE2,0xCFE3,0xCFE5,/* 0x50-0x57 */
+	0xCFE6,0xCFE7,0xCFE9,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xCFEA,0xCFEB,0xCFEC,0xCFED,0xCFEE,0xCFEF,0xCFF2,/* 0x60-0x67 */
+	0xCFF4,0xCFF6,0xCFF7,0xCFF8,0xCFF9,0xCFFA,0xCFFB,0xCFFD,/* 0x68-0x6F */
+	0xCFFE,0xCFFF,0xD001,0xD002,0xD003,0xD005,0xD006,0xD007,/* 0x70-0x77 */
+	0xD008,0xD009,0xD00A,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xD00B,0xD00C,0xD00D,0xD00E,0xD00F,0xD010,0xD012,/* 0x80-0x87 */
+	0xD013,0xD014,0xD015,0xD016,0xD017,0xD019,0xD01A,0xD01B,/* 0x88-0x8F */
+	0xD01C,0xD01D,0xD01E,0xD01F,0xD020,0xD021,0xD022,0xD023,/* 0x90-0x97 */
+	0xD024,0xD025,0xD026,0xD027,0xD028,0xD029,0xD02A,0xD02B,/* 0x98-0x9F */
+	0xD02C,0xB05D,0xB07C,0xB07D,0xB080,0xB084,0xB08C,0xB08D,/* 0xA0-0xA7 */
+	0xB08F,0xB091,0xB098,0xB099,0xB09A,0xB09C,0xB09F,0xB0A0,/* 0xA8-0xAF */
+	0xB0A1,0xB0A2,0xB0A8,0xB0A9,0xB0AB,0xB0AC,0xB0AD,0xB0AE,/* 0xB0-0xB7 */
+	0xB0AF,0xB0B1,0xB0B3,0xB0B4,0xB0B5,0xB0B8,0xB0BC,0xB0C4,/* 0xB8-0xBF */
+	0xB0C5,0xB0C7,0xB0C8,0xB0C9,0xB0D0,0xB0D1,0xB0D4,0xB0D8,/* 0xC0-0xC7 */
+	0xB0E0,0xB0E5,0xB108,0xB109,0xB10B,0xB10C,0xB110,0xB112,/* 0xC8-0xCF */
+	0xB113,0xB118,0xB119,0xB11B,0xB11C,0xB11D,0xB123,0xB124,/* 0xD0-0xD7 */
+	0xB125,0xB128,0xB12C,0xB134,0xB135,0xB137,0xB138,0xB139,/* 0xD8-0xDF */
+	0xB140,0xB141,0xB144,0xB148,0xB150,0xB151,0xB154,0xB155,/* 0xE0-0xE7 */
+	0xB158,0xB15C,0xB160,0xB178,0xB179,0xB17C,0xB180,0xB182,/* 0xE8-0xEF */
+	0xB188,0xB189,0xB18B,0xB18D,0xB192,0xB193,0xB194,0xB198,/* 0xF0-0xF7 */
+	0xB19C,0xB1A8,0xB1CC,0xB1D0,0xB1D4,0xB1DC,0xB1DD,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_B4[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xD02E,0xD02F,0xD030,0xD031,0xD032,0xD033,0xD036,/* 0x40-0x47 */
+	0xD037,0xD039,0xD03A,0xD03B,0xD03D,0xD03E,0xD03F,0xD040,/* 0x48-0x4F */
+	0xD041,0xD042,0xD043,0xD046,0xD048,0xD04A,0xD04B,0xD04C,/* 0x50-0x57 */
+	0xD04D,0xD04E,0xD04F,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xD051,0xD052,0xD053,0xD055,0xD056,0xD057,0xD059,/* 0x60-0x67 */
+	0xD05A,0xD05B,0xD05C,0xD05D,0xD05E,0xD05F,0xD061,0xD062,/* 0x68-0x6F */
+	0xD063,0xD064,0xD065,0xD066,0xD067,0xD068,0xD069,0xD06A,/* 0x70-0x77 */
+	0xD06B,0xD06E,0xD06F,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xD071,0xD072,0xD073,0xD075,0xD076,0xD077,0xD078,/* 0x80-0x87 */
+	0xD079,0xD07A,0xD07B,0xD07E,0xD07F,0xD080,0xD082,0xD083,/* 0x88-0x8F */
+	0xD084,0xD085,0xD086,0xD087,0xD088,0xD089,0xD08A,0xD08B,/* 0x90-0x97 */
+	0xD08C,0xD08D,0xD08E,0xD08F,0xD090,0xD091,0xD092,0xD093,/* 0x98-0x9F */
+	0xD094,0xB1DF,0xB1E8,0xB1E9,0xB1EC,0xB1F0,0xB1F9,0xB1FB,/* 0xA0-0xA7 */
+	0xB1FD,0xB204,0xB205,0xB208,0xB20B,0xB20C,0xB214,0xB215,/* 0xA8-0xAF */
+	0xB217,0xB219,0xB220,0xB234,0xB23C,0xB258,0xB25C,0xB260,/* 0xB0-0xB7 */
+	0xB268,0xB269,0xB274,0xB275,0xB27C,0xB284,0xB285,0xB289,/* 0xB8-0xBF */
+	0xB290,0xB291,0xB294,0xB298,0xB299,0xB29A,0xB2A0,0xB2A1,/* 0xC0-0xC7 */
+	0xB2A3,0xB2A5,0xB2A6,0xB2AA,0xB2AC,0xB2B0,0xB2B4,0xB2C8,/* 0xC8-0xCF */
+	0xB2C9,0xB2CC,0xB2D0,0xB2D2,0xB2D8,0xB2D9,0xB2DB,0xB2DD,/* 0xD0-0xD7 */
+	0xB2E2,0xB2E4,0xB2E5,0xB2E6,0xB2E8,0xB2EB,0xB2EC,0xB2ED,/* 0xD8-0xDF */
+	0xB2EE,0xB2EF,0xB2F3,0xB2F4,0xB2F5,0xB2F7,0xB2F8,0xB2F9,/* 0xE0-0xE7 */
+	0xB2FA,0xB2FB,0xB2FF,0xB300,0xB301,0xB304,0xB308,0xB310,/* 0xE8-0xEF */
+	0xB311,0xB313,0xB314,0xB315,0xB31C,0xB354,0xB355,0xB356,/* 0xF0-0xF7 */
+	0xB358,0xB35B,0xB35C,0xB35E,0xB35F,0xB364,0xB365,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_B5[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xD095,0xD096,0xD097,0xD098,0xD099,0xD09A,0xD09B,/* 0x40-0x47 */
+	0xD09C,0xD09D,0xD09E,0xD09F,0xD0A0,0xD0A1,0xD0A2,0xD0A3,/* 0x48-0x4F */
+	0xD0A6,0xD0A7,0xD0A9,0xD0AA,0xD0AB,0xD0AD,0xD0AE,0xD0AF,/* 0x50-0x57 */
+	0xD0B0,0xD0B1,0xD0B2,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xD0B3,0xD0B6,0xD0B8,0xD0BA,0xD0BB,0xD0BC,0xD0BD,/* 0x60-0x67 */
+	0xD0BE,0xD0BF,0xD0C2,0xD0C3,0xD0C5,0xD0C6,0xD0C7,0xD0CA,/* 0x68-0x6F */
+	0xD0CB,0xD0CC,0xD0CD,0xD0CE,0xD0CF,0xD0D2,0xD0D6,0xD0D7,/* 0x70-0x77 */
+	0xD0D8,0xD0D9,0xD0DA,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xD0DB,0xD0DE,0xD0DF,0xD0E1,0xD0E2,0xD0E3,0xD0E5,/* 0x80-0x87 */
+	0xD0E6,0xD0E7,0xD0E8,0xD0E9,0xD0EA,0xD0EB,0xD0EE,0xD0F2,/* 0x88-0x8F */
+	0xD0F3,0xD0F4,0xD0F5,0xD0F6,0xD0F7,0xD0F9,0xD0FA,0xD0FB,/* 0x90-0x97 */
+	0xD0FC,0xD0FD,0xD0FE,0xD0FF,0xD100,0xD101,0xD102,0xD103,/* 0x98-0x9F */
+	0xD104,0xB367,0xB369,0xB36B,0xB36E,0xB370,0xB371,0xB374,/* 0xA0-0xA7 */
+	0xB378,0xB380,0xB381,0xB383,0xB384,0xB385,0xB38C,0xB390,/* 0xA8-0xAF */
+	0xB394,0xB3A0,0xB3A1,0xB3A8,0xB3AC,0xB3C4,0xB3C5,0xB3C8,/* 0xB0-0xB7 */
+	0xB3CB,0xB3CC,0xB3CE,0xB3D0,0xB3D4,0xB3D5,0xB3D7,0xB3D9,/* 0xB8-0xBF */
+	0xB3DB,0xB3DD,0xB3E0,0xB3E4,0xB3E8,0xB3FC,0xB410,0xB418,/* 0xC0-0xC7 */
+	0xB41C,0xB420,0xB428,0xB429,0xB42B,0xB434,0xB450,0xB451,/* 0xC8-0xCF */
+	0xB454,0xB458,0xB460,0xB461,0xB463,0xB465,0xB46C,0xB480,/* 0xD0-0xD7 */
+	0xB488,0xB49D,0xB4A4,0xB4A8,0xB4AC,0xB4B5,0xB4B7,0xB4B9,/* 0xD8-0xDF */
+	0xB4C0,0xB4C4,0xB4C8,0xB4D0,0xB4D5,0xB4DC,0xB4DD,0xB4E0,/* 0xE0-0xE7 */
+	0xB4E3,0xB4E4,0xB4E6,0xB4EC,0xB4ED,0xB4EF,0xB4F1,0xB4F8,/* 0xE8-0xEF */
+	0xB514,0xB515,0xB518,0xB51B,0xB51C,0xB524,0xB525,0xB527,/* 0xF0-0xF7 */
+	0xB528,0xB529,0xB52A,0xB530,0xB531,0xB534,0xB538,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_B6[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xD105,0xD106,0xD107,0xD108,0xD109,0xD10A,0xD10B,/* 0x40-0x47 */
+	0xD10C,0xD10E,0xD10F,0xD110,0xD111,0xD112,0xD113,0xD114,/* 0x48-0x4F */
+	0xD115,0xD116,0xD117,0xD118,0xD119,0xD11A,0xD11B,0xD11C,/* 0x50-0x57 */
+	0xD11D,0xD11E,0xD11F,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xD120,0xD121,0xD122,0xD123,0xD124,0xD125,0xD126,/* 0x60-0x67 */
+	0xD127,0xD128,0xD129,0xD12A,0xD12B,0xD12C,0xD12D,0xD12E,/* 0x68-0x6F */
+	0xD12F,0xD132,0xD133,0xD135,0xD136,0xD137,0xD139,0xD13B,/* 0x70-0x77 */
+	0xD13C,0xD13D,0xD13E,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xD13F,0xD142,0xD146,0xD147,0xD148,0xD149,0xD14A,/* 0x80-0x87 */
+	0xD14B,0xD14E,0xD14F,0xD151,0xD152,0xD153,0xD155,0xD156,/* 0x88-0x8F */
+	0xD157,0xD158,0xD159,0xD15A,0xD15B,0xD15E,0xD160,0xD162,/* 0x90-0x97 */
+	0xD163,0xD164,0xD165,0xD166,0xD167,0xD169,0xD16A,0xD16B,/* 0x98-0x9F */
+	0xD16D,0xB540,0xB541,0xB543,0xB544,0xB545,0xB54B,0xB54C,/* 0xA0-0xA7 */
+	0xB54D,0xB550,0xB554,0xB55C,0xB55D,0xB55F,0xB560,0xB561,/* 0xA8-0xAF */
+	0xB5A0,0xB5A1,0xB5A4,0xB5A8,0xB5AA,0xB5AB,0xB5B0,0xB5B1,/* 0xB0-0xB7 */
+	0xB5B3,0xB5B4,0xB5B5,0xB5BB,0xB5BC,0xB5BD,0xB5C0,0xB5C4,/* 0xB8-0xBF */
+	0xB5CC,0xB5CD,0xB5CF,0xB5D0,0xB5D1,0xB5D8,0xB5EC,0xB610,/* 0xC0-0xC7 */
+	0xB611,0xB614,0xB618,0xB625,0xB62C,0xB634,0xB648,0xB664,/* 0xC8-0xCF */
+	0xB668,0xB69C,0xB69D,0xB6A0,0xB6A4,0xB6AB,0xB6AC,0xB6B1,/* 0xD0-0xD7 */
+	0xB6D4,0xB6F0,0xB6F4,0xB6F8,0xB700,0xB701,0xB705,0xB728,/* 0xD8-0xDF */
+	0xB729,0xB72C,0xB72F,0xB730,0xB738,0xB739,0xB73B,0xB744,/* 0xE0-0xE7 */
+	0xB748,0xB74C,0xB754,0xB755,0xB760,0xB764,0xB768,0xB770,/* 0xE8-0xEF */
+	0xB771,0xB773,0xB775,0xB77C,0xB77D,0xB780,0xB784,0xB78C,/* 0xF0-0xF7 */
+	0xB78D,0xB78F,0xB790,0xB791,0xB792,0xB796,0xB797,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_B7[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xD16E,0xD16F,0xD170,0xD171,0xD172,0xD173,0xD174,/* 0x40-0x47 */
+	0xD175,0xD176,0xD177,0xD178,0xD179,0xD17A,0xD17B,0xD17D,/* 0x48-0x4F */
+	0xD17E,0xD17F,0xD180,0xD181,0xD182,0xD183,0xD185,0xD186,/* 0x50-0x57 */
+	0xD187,0xD189,0xD18A,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xD18B,0xD18C,0xD18D,0xD18E,0xD18F,0xD190,0xD191,/* 0x60-0x67 */
+	0xD192,0xD193,0xD194,0xD195,0xD196,0xD197,0xD198,0xD199,/* 0x68-0x6F */
+	0xD19A,0xD19B,0xD19C,0xD19D,0xD19E,0xD19F,0xD1A2,0xD1A3,/* 0x70-0x77 */
+	0xD1A5,0xD1A6,0xD1A7,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xD1A9,0xD1AA,0xD1AB,0xD1AC,0xD1AD,0xD1AE,0xD1AF,/* 0x80-0x87 */
+	0xD1B2,0xD1B4,0xD1B6,0xD1B7,0xD1B8,0xD1B9,0xD1BB,0xD1BD,/* 0x88-0x8F */
+	0xD1BE,0xD1BF,0xD1C1,0xD1C2,0xD1C3,0xD1C4,0xD1C5,0xD1C6,/* 0x90-0x97 */
+	0xD1C7,0xD1C8,0xD1C9,0xD1CA,0xD1CB,0xD1CC,0xD1CD,0xD1CE,/* 0x98-0x9F */
+	0xD1CF,0xB798,0xB799,0xB79C,0xB7A0,0xB7A8,0xB7A9,0xB7AB,/* 0xA0-0xA7 */
+	0xB7AC,0xB7AD,0xB7B4,0xB7B5,0xB7B8,0xB7C7,0xB7C9,0xB7EC,/* 0xA8-0xAF */
+	0xB7ED,0xB7F0,0xB7F4,0xB7FC,0xB7FD,0xB7FF,0xB800,0xB801,/* 0xB0-0xB7 */
+	0xB807,0xB808,0xB809,0xB80C,0xB810,0xB818,0xB819,0xB81B,/* 0xB8-0xBF */
+	0xB81D,0xB824,0xB825,0xB828,0xB82C,0xB834,0xB835,0xB837,/* 0xC0-0xC7 */
+	0xB838,0xB839,0xB840,0xB844,0xB851,0xB853,0xB85C,0xB85D,/* 0xC8-0xCF */
+	0xB860,0xB864,0xB86C,0xB86D,0xB86F,0xB871,0xB878,0xB87C,/* 0xD0-0xD7 */
+	0xB88D,0xB8A8,0xB8B0,0xB8B4,0xB8B8,0xB8C0,0xB8C1,0xB8C3,/* 0xD8-0xDF */
+	0xB8C5,0xB8CC,0xB8D0,0xB8D4,0xB8DD,0xB8DF,0xB8E1,0xB8E8,/* 0xE0-0xE7 */
+	0xB8E9,0xB8EC,0xB8F0,0xB8F8,0xB8F9,0xB8FB,0xB8FD,0xB904,/* 0xE8-0xEF */
+	0xB918,0xB920,0xB93C,0xB93D,0xB940,0xB944,0xB94C,0xB94F,/* 0xF0-0xF7 */
+	0xB951,0xB958,0xB959,0xB95C,0xB960,0xB968,0xB969,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_B8[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xD1D0,0xD1D1,0xD1D2,0xD1D3,0xD1D4,0xD1D5,0xD1D6,/* 0x40-0x47 */
+	0xD1D7,0xD1D9,0xD1DA,0xD1DB,0xD1DC,0xD1DD,0xD1DE,0xD1DF,/* 0x48-0x4F */
+	0xD1E0,0xD1E1,0xD1E2,0xD1E3,0xD1E4,0xD1E5,0xD1E6,0xD1E7,/* 0x50-0x57 */
+	0xD1E8,0xD1E9,0xD1EA,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xD1EB,0xD1EC,0xD1ED,0xD1EE,0xD1EF,0xD1F0,0xD1F1,/* 0x60-0x67 */
+	0xD1F2,0xD1F3,0xD1F5,0xD1F6,0xD1F7,0xD1F9,0xD1FA,0xD1FB,/* 0x68-0x6F */
+	0xD1FC,0xD1FD,0xD1FE,0xD1FF,0xD200,0xD201,0xD202,0xD203,/* 0x70-0x77 */
+	0xD204,0xD205,0xD206,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xD208,0xD20A,0xD20B,0xD20C,0xD20D,0xD20E,0xD20F,/* 0x80-0x87 */
+	0xD211,0xD212,0xD213,0xD214,0xD215,0xD216,0xD217,0xD218,/* 0x88-0x8F */
+	0xD219,0xD21A,0xD21B,0xD21C,0xD21D,0xD21E,0xD21F,0xD220,/* 0x90-0x97 */
+	0xD221,0xD222,0xD223,0xD224,0xD225,0xD226,0xD227,0xD228,/* 0x98-0x9F */
+	0xD229,0xB96B,0xB96D,0xB974,0xB975,0xB978,0xB97C,0xB984,/* 0xA0-0xA7 */
+	0xB985,0xB987,0xB989,0xB98A,0xB98D,0xB98E,0xB9AC,0xB9AD,/* 0xA8-0xAF */
+	0xB9B0,0xB9B4,0xB9BC,0xB9BD,0xB9BF,0xB9C1,0xB9C8,0xB9C9,/* 0xB0-0xB7 */
+	0xB9CC,0xB9CE,0xB9CF,0xB9D0,0xB9D1,0xB9D2,0xB9D8,0xB9D9,/* 0xB8-0xBF */
+	0xB9DB,0xB9DD,0xB9DE,0xB9E1,0xB9E3,0xB9E4,0xB9E5,0xB9E8,/* 0xC0-0xC7 */
+	0xB9EC,0xB9F4,0xB9F5,0xB9F7,0xB9F8,0xB9F9,0xB9FA,0xBA00,/* 0xC8-0xCF */
+	0xBA01,0xBA08,0xBA15,0xBA38,0xBA39,0xBA3C,0xBA40,0xBA42,/* 0xD0-0xD7 */
+	0xBA48,0xBA49,0xBA4B,0xBA4D,0xBA4E,0xBA53,0xBA54,0xBA55,/* 0xD8-0xDF */
+	0xBA58,0xBA5C,0xBA64,0xBA65,0xBA67,0xBA68,0xBA69,0xBA70,/* 0xE0-0xE7 */
+	0xBA71,0xBA74,0xBA78,0xBA83,0xBA84,0xBA85,0xBA87,0xBA8C,/* 0xE8-0xEF */
+	0xBAA8,0xBAA9,0xBAAB,0xBAAC,0xBAB0,0xBAB2,0xBAB8,0xBAB9,/* 0xF0-0xF7 */
+	0xBABB,0xBABD,0xBAC4,0xBAC8,0xBAD8,0xBAD9,0xBAFC,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_B9[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xD22A,0xD22B,0xD22E,0xD22F,0xD231,0xD232,0xD233,/* 0x40-0x47 */
+	0xD235,0xD236,0xD237,0xD238,0xD239,0xD23A,0xD23B,0xD23E,/* 0x48-0x4F */
+	0xD240,0xD242,0xD243,0xD244,0xD245,0xD246,0xD247,0xD249,/* 0x50-0x57 */
+	0xD24A,0xD24B,0xD24C,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xD24D,0xD24E,0xD24F,0xD250,0xD251,0xD252,0xD253,/* 0x60-0x67 */
+	0xD254,0xD255,0xD256,0xD257,0xD258,0xD259,0xD25A,0xD25B,/* 0x68-0x6F */
+	0xD25D,0xD25E,0xD25F,0xD260,0xD261,0xD262,0xD263,0xD265,/* 0x70-0x77 */
+	0xD266,0xD267,0xD268,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xD269,0xD26A,0xD26B,0xD26C,0xD26D,0xD26E,0xD26F,/* 0x80-0x87 */
+	0xD270,0xD271,0xD272,0xD273,0xD274,0xD275,0xD276,0xD277,/* 0x88-0x8F */
+	0xD278,0xD279,0xD27A,0xD27B,0xD27C,0xD27D,0xD27E,0xD27F,/* 0x90-0x97 */
+	0xD282,0xD283,0xD285,0xD286,0xD287,0xD289,0xD28A,0xD28B,/* 0x98-0x9F */
+	0xD28C,0xBB00,0xBB04,0xBB0D,0xBB0F,0xBB11,0xBB18,0xBB1C,/* 0xA0-0xA7 */
+	0xBB20,0xBB29,0xBB2B,0xBB34,0xBB35,0xBB36,0xBB38,0xBB3B,/* 0xA8-0xAF */
+	0xBB3C,0xBB3D,0xBB3E,0xBB44,0xBB45,0xBB47,0xBB49,0xBB4D,/* 0xB0-0xB7 */
+	0xBB4F,0xBB50,0xBB54,0xBB58,0xBB61,0xBB63,0xBB6C,0xBB88,/* 0xB8-0xBF */
+	0xBB8C,0xBB90,0xBBA4,0xBBA8,0xBBAC,0xBBB4,0xBBB7,0xBBC0,/* 0xC0-0xC7 */
+	0xBBC4,0xBBC8,0xBBD0,0xBBD3,0xBBF8,0xBBF9,0xBBFC,0xBBFF,/* 0xC8-0xCF */
+	0xBC00,0xBC02,0xBC08,0xBC09,0xBC0B,0xBC0C,0xBC0D,0xBC0F,/* 0xD0-0xD7 */
+	0xBC11,0xBC14,0xBC15,0xBC16,0xBC17,0xBC18,0xBC1B,0xBC1C,/* 0xD8-0xDF */
+	0xBC1D,0xBC1E,0xBC1F,0xBC24,0xBC25,0xBC27,0xBC29,0xBC2D,/* 0xE0-0xE7 */
+	0xBC30,0xBC31,0xBC34,0xBC38,0xBC40,0xBC41,0xBC43,0xBC44,/* 0xE8-0xEF */
+	0xBC45,0xBC49,0xBC4C,0xBC4D,0xBC50,0xBC5D,0xBC84,0xBC85,/* 0xF0-0xF7 */
+	0xBC88,0xBC8B,0xBC8C,0xBC8E,0xBC94,0xBC95,0xBC97,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_BA[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xD28D,0xD28E,0xD28F,0xD292,0xD293,0xD294,0xD296,/* 0x40-0x47 */
+	0xD297,0xD298,0xD299,0xD29A,0xD29B,0xD29D,0xD29E,0xD29F,/* 0x48-0x4F */
+	0xD2A1,0xD2A2,0xD2A3,0xD2A5,0xD2A6,0xD2A7,0xD2A8,0xD2A9,/* 0x50-0x57 */
+	0xD2AA,0xD2AB,0xD2AD,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xD2AE,0xD2AF,0xD2B0,0xD2B2,0xD2B3,0xD2B4,0xD2B5,/* 0x60-0x67 */
+	0xD2B6,0xD2B7,0xD2BA,0xD2BB,0xD2BD,0xD2BE,0xD2C1,0xD2C3,/* 0x68-0x6F */
+	0xD2C4,0xD2C5,0xD2C6,0xD2C7,0xD2CA,0xD2CC,0xD2CD,0xD2CE,/* 0x70-0x77 */
+	0xD2CF,0xD2D0,0xD2D1,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xD2D2,0xD2D3,0xD2D5,0xD2D6,0xD2D7,0xD2D9,0xD2DA,/* 0x80-0x87 */
+	0xD2DB,0xD2DD,0xD2DE,0xD2DF,0xD2E0,0xD2E1,0xD2E2,0xD2E3,/* 0x88-0x8F */
+	0xD2E6,0xD2E7,0xD2E8,0xD2E9,0xD2EA,0xD2EB,0xD2EC,0xD2ED,/* 0x90-0x97 */
+	0xD2EE,0xD2EF,0xD2F2,0xD2F3,0xD2F5,0xD2F6,0xD2F7,0xD2F9,/* 0x98-0x9F */
+	0xD2FA,0xBC99,0xBC9A,0xBCA0,0xBCA1,0xBCA4,0xBCA7,0xBCA8,/* 0xA0-0xA7 */
+	0xBCB0,0xBCB1,0xBCB3,0xBCB4,0xBCB5,0xBCBC,0xBCBD,0xBCC0,/* 0xA8-0xAF */
+	0xBCC4,0xBCCD,0xBCCF,0xBCD0,0xBCD1,0xBCD5,0xBCD8,0xBCDC,/* 0xB0-0xB7 */
+	0xBCF4,0xBCF5,0xBCF6,0xBCF8,0xBCFC,0xBD04,0xBD05,0xBD07,/* 0xB8-0xBF */
+	0xBD09,0xBD10,0xBD14,0xBD24,0xBD2C,0xBD40,0xBD48,0xBD49,/* 0xC0-0xC7 */
+	0xBD4C,0xBD50,0xBD58,0xBD59,0xBD64,0xBD68,0xBD80,0xBD81,/* 0xC8-0xCF */
+	0xBD84,0xBD87,0xBD88,0xBD89,0xBD8A,0xBD90,0xBD91,0xBD93,/* 0xD0-0xD7 */
+	0xBD95,0xBD99,0xBD9A,0xBD9C,0xBDA4,0xBDB0,0xBDB8,0xBDD4,/* 0xD8-0xDF */
+	0xBDD5,0xBDD8,0xBDDC,0xBDE9,0xBDF0,0xBDF4,0xBDF8,0xBE00,/* 0xE0-0xE7 */
+	0xBE03,0xBE05,0xBE0C,0xBE0D,0xBE10,0xBE14,0xBE1C,0xBE1D,/* 0xE8-0xEF */
+	0xBE1F,0xBE44,0xBE45,0xBE48,0xBE4C,0xBE4E,0xBE54,0xBE55,/* 0xF0-0xF7 */
+	0xBE57,0xBE59,0xBE5A,0xBE5B,0xBE60,0xBE61,0xBE64,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_BB[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xD2FB,0xD2FC,0xD2FD,0xD2FE,0xD2FF,0xD302,0xD304,/* 0x40-0x47 */
+	0xD306,0xD307,0xD308,0xD309,0xD30A,0xD30B,0xD30F,0xD311,/* 0x48-0x4F */
+	0xD312,0xD313,0xD315,0xD317,0xD318,0xD319,0xD31A,0xD31B,/* 0x50-0x57 */
+	0xD31E,0xD322,0xD323,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xD324,0xD326,0xD327,0xD32A,0xD32B,0xD32D,0xD32E,/* 0x60-0x67 */
+	0xD32F,0xD331,0xD332,0xD333,0xD334,0xD335,0xD336,0xD337,/* 0x68-0x6F */
+	0xD33A,0xD33E,0xD33F,0xD340,0xD341,0xD342,0xD343,0xD346,/* 0x70-0x77 */
+	0xD347,0xD348,0xD349,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xD34A,0xD34B,0xD34C,0xD34D,0xD34E,0xD34F,0xD350,/* 0x80-0x87 */
+	0xD351,0xD352,0xD353,0xD354,0xD355,0xD356,0xD357,0xD358,/* 0x88-0x8F */
+	0xD359,0xD35A,0xD35B,0xD35C,0xD35D,0xD35E,0xD35F,0xD360,/* 0x90-0x97 */
+	0xD361,0xD362,0xD363,0xD364,0xD365,0xD366,0xD367,0xD368,/* 0x98-0x9F */
+	0xD369,0xBE68,0xBE6A,0xBE70,0xBE71,0xBE73,0xBE74,0xBE75,/* 0xA0-0xA7 */
+	0xBE7B,0xBE7C,0xBE7D,0xBE80,0xBE84,0xBE8C,0xBE8D,0xBE8F,/* 0xA8-0xAF */
+	0xBE90,0xBE91,0xBE98,0xBE99,0xBEA8,0xBED0,0xBED1,0xBED4,/* 0xB0-0xB7 */
+	0xBED7,0xBED8,0xBEE0,0xBEE3,0xBEE4,0xBEE5,0xBEEC,0xBF01,/* 0xB8-0xBF */
+	0xBF08,0xBF09,0xBF18,0xBF19,0xBF1B,0xBF1C,0xBF1D,0xBF40,/* 0xC0-0xC7 */
+	0xBF41,0xBF44,0xBF48,0xBF50,0xBF51,0xBF55,0xBF94,0xBFB0,/* 0xC8-0xCF */
+	0xBFC5,0xBFCC,0xBFCD,0xBFD0,0xBFD4,0xBFDC,0xBFDF,0xBFE1,/* 0xD0-0xD7 */
+	0xC03C,0xC051,0xC058,0xC05C,0xC060,0xC068,0xC069,0xC090,/* 0xD8-0xDF */
+	0xC091,0xC094,0xC098,0xC0A0,0xC0A1,0xC0A3,0xC0A5,0xC0AC,/* 0xE0-0xE7 */
+	0xC0AD,0xC0AF,0xC0B0,0xC0B3,0xC0B4,0xC0B5,0xC0B6,0xC0BC,/* 0xE8-0xEF */
+	0xC0BD,0xC0BF,0xC0C0,0xC0C1,0xC0C5,0xC0C8,0xC0C9,0xC0CC,/* 0xF0-0xF7 */
+	0xC0D0,0xC0D8,0xC0D9,0xC0DB,0xC0DC,0xC0DD,0xC0E4,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_BC[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xD36A,0xD36B,0xD36C,0xD36D,0xD36E,0xD36F,0xD370,/* 0x40-0x47 */
+	0xD371,0xD372,0xD373,0xD374,0xD375,0xD376,0xD377,0xD378,/* 0x48-0x4F */
+	0xD379,0xD37A,0xD37B,0xD37E,0xD37F,0xD381,0xD382,0xD383,/* 0x50-0x57 */
+	0xD385,0xD386,0xD387,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xD388,0xD389,0xD38A,0xD38B,0xD38E,0xD392,0xD393,/* 0x60-0x67 */
+	0xD394,0xD395,0xD396,0xD397,0xD39A,0xD39B,0xD39D,0xD39E,/* 0x68-0x6F */
+	0xD39F,0xD3A1,0xD3A2,0xD3A3,0xD3A4,0xD3A5,0xD3A6,0xD3A7,/* 0x70-0x77 */
+	0xD3AA,0xD3AC,0xD3AE,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xD3AF,0xD3B0,0xD3B1,0xD3B2,0xD3B3,0xD3B5,0xD3B6,/* 0x80-0x87 */
+	0xD3B7,0xD3B9,0xD3BA,0xD3BB,0xD3BD,0xD3BE,0xD3BF,0xD3C0,/* 0x88-0x8F */
+	0xD3C1,0xD3C2,0xD3C3,0xD3C6,0xD3C7,0xD3CA,0xD3CB,0xD3CC,/* 0x90-0x97 */
+	0xD3CD,0xD3CE,0xD3CF,0xD3D1,0xD3D2,0xD3D3,0xD3D4,0xD3D5,/* 0x98-0x9F */
+	0xD3D6,0xC0E5,0xC0E8,0xC0EC,0xC0F4,0xC0F5,0xC0F7,0xC0F9,/* 0xA0-0xA7 */
+	0xC100,0xC104,0xC108,0xC110,0xC115,0xC11C,0xC11D,0xC11E,/* 0xA8-0xAF */
+	0xC11F,0xC120,0xC123,0xC124,0xC126,0xC127,0xC12C,0xC12D,/* 0xB0-0xB7 */
+	0xC12F,0xC130,0xC131,0xC136,0xC138,0xC139,0xC13C,0xC140,/* 0xB8-0xBF */
+	0xC148,0xC149,0xC14B,0xC14C,0xC14D,0xC154,0xC155,0xC158,/* 0xC0-0xC7 */
+	0xC15C,0xC164,0xC165,0xC167,0xC168,0xC169,0xC170,0xC174,/* 0xC8-0xCF */
+	0xC178,0xC185,0xC18C,0xC18D,0xC18E,0xC190,0xC194,0xC196,/* 0xD0-0xD7 */
+	0xC19C,0xC19D,0xC19F,0xC1A1,0xC1A5,0xC1A8,0xC1A9,0xC1AC,/* 0xD8-0xDF */
+	0xC1B0,0xC1BD,0xC1C4,0xC1C8,0xC1CC,0xC1D4,0xC1D7,0xC1D8,/* 0xE0-0xE7 */
+	0xC1E0,0xC1E4,0xC1E8,0xC1F0,0xC1F1,0xC1F3,0xC1FC,0xC1FD,/* 0xE8-0xEF */
+	0xC200,0xC204,0xC20C,0xC20D,0xC20F,0xC211,0xC218,0xC219,/* 0xF0-0xF7 */
+	0xC21C,0xC21F,0xC220,0xC228,0xC229,0xC22B,0xC22D,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_BD[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xD3D7,0xD3D9,0xD3DA,0xD3DB,0xD3DC,0xD3DD,0xD3DE,/* 0x40-0x47 */
+	0xD3DF,0xD3E0,0xD3E2,0xD3E4,0xD3E5,0xD3E6,0xD3E7,0xD3E8,/* 0x48-0x4F */
+	0xD3E9,0xD3EA,0xD3EB,0xD3EE,0xD3EF,0xD3F1,0xD3F2,0xD3F3,/* 0x50-0x57 */
+	0xD3F5,0xD3F6,0xD3F7,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xD3F8,0xD3F9,0xD3FA,0xD3FB,0xD3FE,0xD400,0xD402,/* 0x60-0x67 */
+	0xD403,0xD404,0xD405,0xD406,0xD407,0xD409,0xD40A,0xD40B,/* 0x68-0x6F */
+	0xD40C,0xD40D,0xD40E,0xD40F,0xD410,0xD411,0xD412,0xD413,/* 0x70-0x77 */
+	0xD414,0xD415,0xD416,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xD417,0xD418,0xD419,0xD41A,0xD41B,0xD41C,0xD41E,/* 0x80-0x87 */
+	0xD41F,0xD420,0xD421,0xD422,0xD423,0xD424,0xD425,0xD426,/* 0x88-0x8F */
+	0xD427,0xD428,0xD429,0xD42A,0xD42B,0xD42C,0xD42D,0xD42E,/* 0x90-0x97 */
+	0xD42F,0xD430,0xD431,0xD432,0xD433,0xD434,0xD435,0xD436,/* 0x98-0x9F */
+	0xD437,0xC22F,0xC231,0xC232,0xC234,0xC248,0xC250,0xC251,/* 0xA0-0xA7 */
+	0xC254,0xC258,0xC260,0xC265,0xC26C,0xC26D,0xC270,0xC274,/* 0xA8-0xAF */
+	0xC27C,0xC27D,0xC27F,0xC281,0xC288,0xC289,0xC290,0xC298,/* 0xB0-0xB7 */
+	0xC29B,0xC29D,0xC2A4,0xC2A5,0xC2A8,0xC2AC,0xC2AD,0xC2B4,/* 0xB8-0xBF */
+	0xC2B5,0xC2B7,0xC2B9,0xC2DC,0xC2DD,0xC2E0,0xC2E3,0xC2E4,/* 0xC0-0xC7 */
+	0xC2EB,0xC2EC,0xC2ED,0xC2EF,0xC2F1,0xC2F6,0xC2F8,0xC2F9,/* 0xC8-0xCF */
+	0xC2FB,0xC2FC,0xC300,0xC308,0xC309,0xC30C,0xC30D,0xC313,/* 0xD0-0xD7 */
+	0xC314,0xC315,0xC318,0xC31C,0xC324,0xC325,0xC328,0xC329,/* 0xD8-0xDF */
+	0xC345,0xC368,0xC369,0xC36C,0xC370,0xC372,0xC378,0xC379,/* 0xE0-0xE7 */
+	0xC37C,0xC37D,0xC384,0xC388,0xC38C,0xC3C0,0xC3D8,0xC3D9,/* 0xE8-0xEF */
+	0xC3DC,0xC3DF,0xC3E0,0xC3E2,0xC3E8,0xC3E9,0xC3ED,0xC3F4,/* 0xF0-0xF7 */
+	0xC3F5,0xC3F8,0xC408,0xC410,0xC424,0xC42C,0xC430,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_BE[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xD438,0xD439,0xD43A,0xD43B,0xD43C,0xD43D,0xD43E,/* 0x40-0x47 */
+	0xD43F,0xD441,0xD442,0xD443,0xD445,0xD446,0xD447,0xD448,/* 0x48-0x4F */
+	0xD449,0xD44A,0xD44B,0xD44C,0xD44D,0xD44E,0xD44F,0xD450,/* 0x50-0x57 */
+	0xD451,0xD452,0xD453,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xD454,0xD455,0xD456,0xD457,0xD458,0xD459,0xD45A,/* 0x60-0x67 */
+	0xD45B,0xD45D,0xD45E,0xD45F,0xD461,0xD462,0xD463,0xD465,/* 0x68-0x6F */
+	0xD466,0xD467,0xD468,0xD469,0xD46A,0xD46B,0xD46C,0xD46E,/* 0x70-0x77 */
+	0xD470,0xD471,0xD472,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xD473,0xD474,0xD475,0xD476,0xD477,0xD47A,0xD47B,/* 0x80-0x87 */
+	0xD47D,0xD47E,0xD481,0xD483,0xD484,0xD485,0xD486,0xD487,/* 0x88-0x8F */
+	0xD48A,0xD48C,0xD48E,0xD48F,0xD490,0xD491,0xD492,0xD493,/* 0x90-0x97 */
+	0xD495,0xD496,0xD497,0xD498,0xD499,0xD49A,0xD49B,0xD49C,/* 0x98-0x9F */
+	0xD49D,0xC434,0xC43C,0xC43D,0xC448,0xC464,0xC465,0xC468,/* 0xA0-0xA7 */
+	0xC46C,0xC474,0xC475,0xC479,0xC480,0xC494,0xC49C,0xC4B8,/* 0xA8-0xAF */
+	0xC4BC,0xC4E9,0xC4F0,0xC4F1,0xC4F4,0xC4F8,0xC4FA,0xC4FF,/* 0xB0-0xB7 */
+	0xC500,0xC501,0xC50C,0xC510,0xC514,0xC51C,0xC528,0xC529,/* 0xB8-0xBF */
+	0xC52C,0xC530,0xC538,0xC539,0xC53B,0xC53D,0xC544,0xC545,/* 0xC0-0xC7 */
+	0xC548,0xC549,0xC54A,0xC54C,0xC54D,0xC54E,0xC553,0xC554,/* 0xC8-0xCF */
+	0xC555,0xC557,0xC558,0xC559,0xC55D,0xC55E,0xC560,0xC561,/* 0xD0-0xD7 */
+	0xC564,0xC568,0xC570,0xC571,0xC573,0xC574,0xC575,0xC57C,/* 0xD8-0xDF */
+	0xC57D,0xC580,0xC584,0xC587,0xC58C,0xC58D,0xC58F,0xC591,/* 0xE0-0xE7 */
+	0xC595,0xC597,0xC598,0xC59C,0xC5A0,0xC5A9,0xC5B4,0xC5B5,/* 0xE8-0xEF */
+	0xC5B8,0xC5B9,0xC5BB,0xC5BC,0xC5BD,0xC5BE,0xC5C4,0xC5C5,/* 0xF0-0xF7 */
+	0xC5C6,0xC5C7,0xC5C8,0xC5C9,0xC5CA,0xC5CC,0xC5CE,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_BF[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xD49E,0xD49F,0xD4A0,0xD4A1,0xD4A2,0xD4A3,0xD4A4,/* 0x40-0x47 */
+	0xD4A5,0xD4A6,0xD4A7,0xD4A8,0xD4AA,0xD4AB,0xD4AC,0xD4AD,/* 0x48-0x4F */
+	0xD4AE,0xD4AF,0xD4B0,0xD4B1,0xD4B2,0xD4B3,0xD4B4,0xD4B5,/* 0x50-0x57 */
+	0xD4B6,0xD4B7,0xD4B8,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xD4B9,0xD4BA,0xD4BB,0xD4BC,0xD4BD,0xD4BE,0xD4BF,/* 0x60-0x67 */
+	0xD4C0,0xD4C1,0xD4C2,0xD4C3,0xD4C4,0xD4C5,0xD4C6,0xD4C7,/* 0x68-0x6F */
+	0xD4C8,0xD4C9,0xD4CA,0xD4CB,0xD4CD,0xD4CE,0xD4CF,0xD4D1,/* 0x70-0x77 */
+	0xD4D2,0xD4D3,0xD4D5,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xD4D6,0xD4D7,0xD4D8,0xD4D9,0xD4DA,0xD4DB,0xD4DD,/* 0x80-0x87 */
+	0xD4DE,0xD4E0,0xD4E1,0xD4E2,0xD4E3,0xD4E4,0xD4E5,0xD4E6,/* 0x88-0x8F */
+	0xD4E7,0xD4E9,0xD4EA,0xD4EB,0xD4ED,0xD4EE,0xD4EF,0xD4F1,/* 0x90-0x97 */
+	0xD4F2,0xD4F3,0xD4F4,0xD4F5,0xD4F6,0xD4F7,0xD4F9,0xD4FA,/* 0x98-0x9F */
+	0xD4FC,0xC5D0,0xC5D1,0xC5D4,0xC5D8,0xC5E0,0xC5E1,0xC5E3,/* 0xA0-0xA7 */
+	0xC5E5,0xC5EC,0xC5ED,0xC5EE,0xC5F0,0xC5F4,0xC5F6,0xC5F7,/* 0xA8-0xAF */
+	0xC5FC,0xC5FD,0xC5FE,0xC5FF,0xC600,0xC601,0xC605,0xC606,/* 0xB0-0xB7 */
+	0xC607,0xC608,0xC60C,0xC610,0xC618,0xC619,0xC61B,0xC61C,/* 0xB8-0xBF */
+	0xC624,0xC625,0xC628,0xC62C,0xC62D,0xC62E,0xC630,0xC633,/* 0xC0-0xC7 */
+	0xC634,0xC635,0xC637,0xC639,0xC63B,0xC640,0xC641,0xC644,/* 0xC8-0xCF */
+	0xC648,0xC650,0xC651,0xC653,0xC654,0xC655,0xC65C,0xC65D,/* 0xD0-0xD7 */
+	0xC660,0xC66C,0xC66F,0xC671,0xC678,0xC679,0xC67C,0xC680,/* 0xD8-0xDF */
+	0xC688,0xC689,0xC68B,0xC68D,0xC694,0xC695,0xC698,0xC69C,/* 0xE0-0xE7 */
+	0xC6A4,0xC6A5,0xC6A7,0xC6A9,0xC6B0,0xC6B1,0xC6B4,0xC6B8,/* 0xE8-0xEF */
+	0xC6B9,0xC6BA,0xC6C0,0xC6C1,0xC6C3,0xC6C5,0xC6CC,0xC6CD,/* 0xF0-0xF7 */
+	0xC6D0,0xC6D4,0xC6DC,0xC6DD,0xC6E0,0xC6E1,0xC6E8,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_C0[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xD4FE,0xD4FF,0xD500,0xD501,0xD502,0xD503,0xD505,/* 0x40-0x47 */
+	0xD506,0xD507,0xD509,0xD50A,0xD50B,0xD50D,0xD50E,0xD50F,/* 0x48-0x4F */
+	0xD510,0xD511,0xD512,0xD513,0xD516,0xD518,0xD519,0xD51A,/* 0x50-0x57 */
+	0xD51B,0xD51C,0xD51D,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xD51E,0xD51F,0xD520,0xD521,0xD522,0xD523,0xD524,/* 0x60-0x67 */
+	0xD525,0xD526,0xD527,0xD528,0xD529,0xD52A,0xD52B,0xD52C,/* 0x68-0x6F */
+	0xD52D,0xD52E,0xD52F,0xD530,0xD531,0xD532,0xD533,0xD534,/* 0x70-0x77 */
+	0xD535,0xD536,0xD537,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xD538,0xD539,0xD53A,0xD53B,0xD53E,0xD53F,0xD541,/* 0x80-0x87 */
+	0xD542,0xD543,0xD545,0xD546,0xD547,0xD548,0xD549,0xD54A,/* 0x88-0x8F */
+	0xD54B,0xD54E,0xD550,0xD552,0xD553,0xD554,0xD555,0xD556,/* 0x90-0x97 */
+	0xD557,0xD55A,0xD55B,0xD55D,0xD55E,0xD55F,0xD561,0xD562,/* 0x98-0x9F */
+	0xD563,0xC6E9,0xC6EC,0xC6F0,0xC6F8,0xC6F9,0xC6FD,0xC704,/* 0xA0-0xA7 */
+	0xC705,0xC708,0xC70C,0xC714,0xC715,0xC717,0xC719,0xC720,/* 0xA8-0xAF */
+	0xC721,0xC724,0xC728,0xC730,0xC731,0xC733,0xC735,0xC737,/* 0xB0-0xB7 */
+	0xC73C,0xC73D,0xC740,0xC744,0xC74A,0xC74C,0xC74D,0xC74F,/* 0xB8-0xBF */
+	0xC751,0xC752,0xC753,0xC754,0xC755,0xC756,0xC757,0xC758,/* 0xC0-0xC7 */
+	0xC75C,0xC760,0xC768,0xC76B,0xC774,0xC775,0xC778,0xC77C,/* 0xC8-0xCF */
+	0xC77D,0xC77E,0xC783,0xC784,0xC785,0xC787,0xC788,0xC789,/* 0xD0-0xD7 */
+	0xC78A,0xC78E,0xC790,0xC791,0xC794,0xC796,0xC797,0xC798,/* 0xD8-0xDF */
+	0xC79A,0xC7A0,0xC7A1,0xC7A3,0xC7A4,0xC7A5,0xC7A6,0xC7AC,/* 0xE0-0xE7 */
+	0xC7AD,0xC7B0,0xC7B4,0xC7BC,0xC7BD,0xC7BF,0xC7C0,0xC7C1,/* 0xE8-0xEF */
+	0xC7C8,0xC7C9,0xC7CC,0xC7CE,0xC7D0,0xC7D8,0xC7DD,0xC7E4,/* 0xF0-0xF7 */
+	0xC7E8,0xC7EC,0xC800,0xC801,0xC804,0xC808,0xC80A,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_C1[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xD564,0xD566,0xD567,0xD56A,0xD56C,0xD56E,0xD56F,/* 0x40-0x47 */
+	0xD570,0xD571,0xD572,0xD573,0xD576,0xD577,0xD579,0xD57A,/* 0x48-0x4F */
+	0xD57B,0xD57D,0xD57E,0xD57F,0xD580,0xD581,0xD582,0xD583,/* 0x50-0x57 */
+	0xD586,0xD58A,0xD58B,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xD58C,0xD58D,0xD58E,0xD58F,0xD591,0xD592,0xD593,/* 0x60-0x67 */
+	0xD594,0xD595,0xD596,0xD597,0xD598,0xD599,0xD59A,0xD59B,/* 0x68-0x6F */
+	0xD59C,0xD59D,0xD59E,0xD59F,0xD5A0,0xD5A1,0xD5A2,0xD5A3,/* 0x70-0x77 */
+	0xD5A4,0xD5A6,0xD5A7,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xD5A8,0xD5A9,0xD5AA,0xD5AB,0xD5AC,0xD5AD,0xD5AE,/* 0x80-0x87 */
+	0xD5AF,0xD5B0,0xD5B1,0xD5B2,0xD5B3,0xD5B4,0xD5B5,0xD5B6,/* 0x88-0x8F */
+	0xD5B7,0xD5B8,0xD5B9,0xD5BA,0xD5BB,0xD5BC,0xD5BD,0xD5BE,/* 0x90-0x97 */
+	0xD5BF,0xD5C0,0xD5C1,0xD5C2,0xD5C3,0xD5C4,0xD5C5,0xD5C6,/* 0x98-0x9F */
+	0xD5C7,0xC810,0xC811,0xC813,0xC815,0xC816,0xC81C,0xC81D,/* 0xA0-0xA7 */
+	0xC820,0xC824,0xC82C,0xC82D,0xC82F,0xC831,0xC838,0xC83C,/* 0xA8-0xAF */
+	0xC840,0xC848,0xC849,0xC84C,0xC84D,0xC854,0xC870,0xC871,/* 0xB0-0xB7 */
+	0xC874,0xC878,0xC87A,0xC880,0xC881,0xC883,0xC885,0xC886,/* 0xB8-0xBF */
+	0xC887,0xC88B,0xC88C,0xC88D,0xC894,0xC89D,0xC89F,0xC8A1,/* 0xC0-0xC7 */
+	0xC8A8,0xC8BC,0xC8BD,0xC8C4,0xC8C8,0xC8CC,0xC8D4,0xC8D5,/* 0xC8-0xCF */
+	0xC8D7,0xC8D9,0xC8E0,0xC8E1,0xC8E4,0xC8F5,0xC8FC,0xC8FD,/* 0xD0-0xD7 */
+	0xC900,0xC904,0xC905,0xC906,0xC90C,0xC90D,0xC90F,0xC911,/* 0xD8-0xDF */
+	0xC918,0xC92C,0xC934,0xC950,0xC951,0xC954,0xC958,0xC960,/* 0xE0-0xE7 */
+	0xC961,0xC963,0xC96C,0xC970,0xC974,0xC97C,0xC988,0xC989,/* 0xE8-0xEF */
+	0xC98C,0xC990,0xC998,0xC999,0xC99B,0xC99D,0xC9C0,0xC9C1,/* 0xF0-0xF7 */
+	0xC9C4,0xC9C7,0xC9C8,0xC9CA,0xC9D0,0xC9D1,0xC9D3,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_C2[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xD5CA,0xD5CB,0xD5CD,0xD5CE,0xD5CF,0xD5D1,0xD5D3,/* 0x40-0x47 */
+	0xD5D4,0xD5D5,0xD5D6,0xD5D7,0xD5DA,0xD5DC,0xD5DE,0xD5DF,/* 0x48-0x4F */
+	0xD5E0,0xD5E1,0xD5E2,0xD5E3,0xD5E6,0xD5E7,0xD5E9,0xD5EA,/* 0x50-0x57 */
+	0xD5EB,0xD5ED,0xD5EE,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xD5EF,0xD5F0,0xD5F1,0xD5F2,0xD5F3,0xD5F6,0xD5F8,/* 0x60-0x67 */
+	0xD5FA,0xD5FB,0xD5FC,0xD5FD,0xD5FE,0xD5FF,0xD602,0xD603,/* 0x68-0x6F */
+	0xD605,0xD606,0xD607,0xD609,0xD60A,0xD60B,0xD60C,0xD60D,/* 0x70-0x77 */
+	0xD60E,0xD60F,0xD612,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xD616,0xD617,0xD618,0xD619,0xD61A,0xD61B,0xD61D,/* 0x80-0x87 */
+	0xD61E,0xD61F,0xD621,0xD622,0xD623,0xD625,0xD626,0xD627,/* 0x88-0x8F */
+	0xD628,0xD629,0xD62A,0xD62B,0xD62C,0xD62E,0xD62F,0xD630,/* 0x90-0x97 */
+	0xD631,0xD632,0xD633,0xD634,0xD635,0xD636,0xD637,0xD63A,/* 0x98-0x9F */
+	0xD63B,0xC9D5,0xC9D6,0xC9D9,0xC9DA,0xC9DC,0xC9DD,0xC9E0,/* 0xA0-0xA7 */
+	0xC9E2,0xC9E4,0xC9E7,0xC9EC,0xC9ED,0xC9EF,0xC9F0,0xC9F1,/* 0xA8-0xAF */
+	0xC9F8,0xC9F9,0xC9FC,0xCA00,0xCA08,0xCA09,0xCA0B,0xCA0C,/* 0xB0-0xB7 */
+	0xCA0D,0xCA14,0xCA18,0xCA29,0xCA4C,0xCA4D,0xCA50,0xCA54,/* 0xB8-0xBF */
+	0xCA5C,0xCA5D,0xCA5F,0xCA60,0xCA61,0xCA68,0xCA7D,0xCA84,/* 0xC0-0xC7 */
+	0xCA98,0xCABC,0xCABD,0xCAC0,0xCAC4,0xCACC,0xCACD,0xCACF,/* 0xC8-0xCF */
+	0xCAD1,0xCAD3,0xCAD8,0xCAD9,0xCAE0,0xCAEC,0xCAF4,0xCB08,/* 0xD0-0xD7 */
+	0xCB10,0xCB14,0xCB18,0xCB20,0xCB21,0xCB41,0xCB48,0xCB49,/* 0xD8-0xDF */
+	0xCB4C,0xCB50,0xCB58,0xCB59,0xCB5D,0xCB64,0xCB78,0xCB79,/* 0xE0-0xE7 */
+	0xCB9C,0xCBB8,0xCBD4,0xCBE4,0xCBE7,0xCBE9,0xCC0C,0xCC0D,/* 0xE8-0xEF */
+	0xCC10,0xCC14,0xCC1C,0xCC1D,0xCC21,0xCC22,0xCC27,0xCC28,/* 0xF0-0xF7 */
+	0xCC29,0xCC2C,0xCC2E,0xCC30,0xCC38,0xCC39,0xCC3B,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_C3[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xD63D,0xD63E,0xD63F,0xD641,0xD642,0xD643,0xD644,/* 0x40-0x47 */
+	0xD646,0xD647,0xD64A,0xD64C,0xD64E,0xD64F,0xD650,0xD652,/* 0x48-0x4F */
+	0xD653,0xD656,0xD657,0xD659,0xD65A,0xD65B,0xD65D,0xD65E,/* 0x50-0x57 */
+	0xD65F,0xD660,0xD661,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xD662,0xD663,0xD664,0xD665,0xD666,0xD668,0xD66A,/* 0x60-0x67 */
+	0xD66B,0xD66C,0xD66D,0xD66E,0xD66F,0xD672,0xD673,0xD675,/* 0x68-0x6F */
+	0xD676,0xD677,0xD678,0xD679,0xD67A,0xD67B,0xD67C,0xD67D,/* 0x70-0x77 */
+	0xD67E,0xD67F,0xD680,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xD681,0xD682,0xD684,0xD686,0xD687,0xD688,0xD689,/* 0x80-0x87 */
+	0xD68A,0xD68B,0xD68E,0xD68F,0xD691,0xD692,0xD693,0xD695,/* 0x88-0x8F */
+	0xD696,0xD697,0xD698,0xD699,0xD69A,0xD69B,0xD69C,0xD69E,/* 0x90-0x97 */
+	0xD6A0,0xD6A2,0xD6A3,0xD6A4,0xD6A5,0xD6A6,0xD6A7,0xD6A9,/* 0x98-0x9F */
+	0xD6AA,0xCC3C,0xCC3D,0xCC3E,0xCC44,0xCC45,0xCC48,0xCC4C,/* 0xA0-0xA7 */
+	0xCC54,0xCC55,0xCC57,0xCC58,0xCC59,0xCC60,0xCC64,0xCC66,/* 0xA8-0xAF */
+	0xCC68,0xCC70,0xCC75,0xCC98,0xCC99,0xCC9C,0xCCA0,0xCCA8,/* 0xB0-0xB7 */
+	0xCCA9,0xCCAB,0xCCAC,0xCCAD,0xCCB4,0xCCB5,0xCCB8,0xCCBC,/* 0xB8-0xBF */
+	0xCCC4,0xCCC5,0xCCC7,0xCCC9,0xCCD0,0xCCD4,0xCCE4,0xCCEC,/* 0xC0-0xC7 */
+	0xCCF0,0xCD01,0xCD08,0xCD09,0xCD0C,0xCD10,0xCD18,0xCD19,/* 0xC8-0xCF */
+	0xCD1B,0xCD1D,0xCD24,0xCD28,0xCD2C,0xCD39,0xCD5C,0xCD60,/* 0xD0-0xD7 */
+	0xCD64,0xCD6C,0xCD6D,0xCD6F,0xCD71,0xCD78,0xCD88,0xCD94,/* 0xD8-0xDF */
+	0xCD95,0xCD98,0xCD9C,0xCDA4,0xCDA5,0xCDA7,0xCDA9,0xCDB0,/* 0xE0-0xE7 */
+	0xCDC4,0xCDCC,0xCDD0,0xCDE8,0xCDEC,0xCDF0,0xCDF8,0xCDF9,/* 0xE8-0xEF */
+	0xCDFB,0xCDFD,0xCE04,0xCE08,0xCE0C,0xCE14,0xCE19,0xCE20,/* 0xF0-0xF7 */
+	0xCE21,0xCE24,0xCE28,0xCE30,0xCE31,0xCE33,0xCE35,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_C4[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xD6AB,0xD6AD,0xD6AE,0xD6AF,0xD6B1,0xD6B2,0xD6B3,/* 0x40-0x47 */
+	0xD6B4,0xD6B5,0xD6B6,0xD6B7,0xD6B8,0xD6BA,0xD6BC,0xD6BD,/* 0x48-0x4F */
+	0xD6BE,0xD6BF,0xD6C0,0xD6C1,0xD6C2,0xD6C3,0xD6C6,0xD6C7,/* 0x50-0x57 */
+	0xD6C9,0xD6CA,0xD6CB,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xD6CD,0xD6CE,0xD6CF,0xD6D0,0xD6D2,0xD6D3,0xD6D5,/* 0x60-0x67 */
+	0xD6D6,0xD6D8,0xD6DA,0xD6DB,0xD6DC,0xD6DD,0xD6DE,0xD6DF,/* 0x68-0x6F */
+	0xD6E1,0xD6E2,0xD6E3,0xD6E5,0xD6E6,0xD6E7,0xD6E9,0xD6EA,/* 0x70-0x77 */
+	0xD6EB,0xD6EC,0xD6ED,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xD6EE,0xD6EF,0xD6F1,0xD6F2,0xD6F3,0xD6F4,0xD6F6,/* 0x80-0x87 */
+	0xD6F7,0xD6F8,0xD6F9,0xD6FA,0xD6FB,0xD6FE,0xD6FF,0xD701,/* 0x88-0x8F */
+	0xD702,0xD703,0xD705,0xD706,0xD707,0xD708,0xD709,0xD70A,/* 0x90-0x97 */
+	0xD70B,0xD70C,0xD70D,0xD70E,0xD70F,0xD710,0xD712,0xD713,/* 0x98-0x9F */
+	0xD714,0xCE58,0xCE59,0xCE5C,0xCE5F,0xCE60,0xCE61,0xCE68,/* 0xA0-0xA7 */
+	0xCE69,0xCE6B,0xCE6D,0xCE74,0xCE75,0xCE78,0xCE7C,0xCE84,/* 0xA8-0xAF */
+	0xCE85,0xCE87,0xCE89,0xCE90,0xCE91,0xCE94,0xCE98,0xCEA0,/* 0xB0-0xB7 */
+	0xCEA1,0xCEA3,0xCEA4,0xCEA5,0xCEAC,0xCEAD,0xCEC1,0xCEE4,/* 0xB8-0xBF */
+	0xCEE5,0xCEE8,0xCEEB,0xCEEC,0xCEF4,0xCEF5,0xCEF7,0xCEF8,/* 0xC0-0xC7 */
+	0xCEF9,0xCF00,0xCF01,0xCF04,0xCF08,0xCF10,0xCF11,0xCF13,/* 0xC8-0xCF */
+	0xCF15,0xCF1C,0xCF20,0xCF24,0xCF2C,0xCF2D,0xCF2F,0xCF30,/* 0xD0-0xD7 */
+	0xCF31,0xCF38,0xCF54,0xCF55,0xCF58,0xCF5C,0xCF64,0xCF65,/* 0xD8-0xDF */
+	0xCF67,0xCF69,0xCF70,0xCF71,0xCF74,0xCF78,0xCF80,0xCF85,/* 0xE0-0xE7 */
+	0xCF8C,0xCFA1,0xCFA8,0xCFB0,0xCFC4,0xCFE0,0xCFE1,0xCFE4,/* 0xE8-0xEF */
+	0xCFE8,0xCFF0,0xCFF1,0xCFF3,0xCFF5,0xCFFC,0xD000,0xD004,/* 0xF0-0xF7 */
+	0xD011,0xD018,0xD02D,0xD034,0xD035,0xD038,0xD03C,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_C5[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xD715,0xD716,0xD717,0xD71A,0xD71B,0xD71D,0xD71E,/* 0x40-0x47 */
+	0xD71F,0xD721,0xD722,0xD723,0xD724,0xD725,0xD726,0xD727,/* 0x48-0x4F */
+	0xD72A,0xD72C,0xD72E,0xD72F,0xD730,0xD731,0xD732,0xD733,/* 0x50-0x57 */
+	0xD736,0xD737,0xD739,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0xD73A,0xD73B,0xD73D,0xD73E,0xD73F,0xD740,0xD741,/* 0x60-0x67 */
+	0xD742,0xD743,0xD745,0xD746,0xD748,0xD74A,0xD74B,0xD74C,/* 0x68-0x6F */
+	0xD74D,0xD74E,0xD74F,0xD752,0xD753,0xD755,0xD75A,0xD75B,/* 0x70-0x77 */
+	0xD75C,0xD75D,0xD75E,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0xD75F,0xD762,0xD764,0xD766,0xD767,0xD768,0xD76A,/* 0x80-0x87 */
+	0xD76B,0xD76D,0xD76E,0xD76F,0xD771,0xD772,0xD773,0xD775,/* 0x88-0x8F */
+	0xD776,0xD777,0xD778,0xD779,0xD77A,0xD77B,0xD77E,0xD77F,/* 0x90-0x97 */
+	0xD780,0xD782,0xD783,0xD784,0xD785,0xD786,0xD787,0xD78A,/* 0x98-0x9F */
+	0xD78B,0xD044,0xD045,0xD047,0xD049,0xD050,0xD054,0xD058,/* 0xA0-0xA7 */
+	0xD060,0xD06C,0xD06D,0xD070,0xD074,0xD07C,0xD07D,0xD081,/* 0xA8-0xAF */
+	0xD0A4,0xD0A5,0xD0A8,0xD0AC,0xD0B4,0xD0B5,0xD0B7,0xD0B9,/* 0xB0-0xB7 */
+	0xD0C0,0xD0C1,0xD0C4,0xD0C8,0xD0C9,0xD0D0,0xD0D1,0xD0D3,/* 0xB8-0xBF */
+	0xD0D4,0xD0D5,0xD0DC,0xD0DD,0xD0E0,0xD0E4,0xD0EC,0xD0ED,/* 0xC0-0xC7 */
+	0xD0EF,0xD0F0,0xD0F1,0xD0F8,0xD10D,0xD130,0xD131,0xD134,/* 0xC8-0xCF */
+	0xD138,0xD13A,0xD140,0xD141,0xD143,0xD144,0xD145,0xD14C,/* 0xD0-0xD7 */
+	0xD14D,0xD150,0xD154,0xD15C,0xD15D,0xD15F,0xD161,0xD168,/* 0xD8-0xDF */
+	0xD16C,0xD17C,0xD184,0xD188,0xD1A0,0xD1A1,0xD1A4,0xD1A8,/* 0xE0-0xE7 */
+	0xD1B0,0xD1B1,0xD1B3,0xD1B5,0xD1BA,0xD1BC,0xD1C0,0xD1D8,/* 0xE8-0xEF */
+	0xD1F4,0xD1F8,0xD207,0xD209,0xD210,0xD22C,0xD22D,0xD230,/* 0xF0-0xF7 */
+	0xD234,0xD23C,0xD23D,0xD23F,0xD241,0xD248,0xD25C,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_C6[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0xD78D,0xD78E,0xD78F,0xD791,0xD792,0xD793,0xD794,/* 0x40-0x47 */
+	0xD795,0xD796,0xD797,0xD79A,0xD79C,0xD79E,0xD79F,0xD7A0,/* 0x48-0x4F */
+	0xD7A1,0xD7A2,0xD7A3,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0xD264,0xD280,0xD281,0xD284,0xD288,0xD290,0xD291,/* 0xA0-0xA7 */
+	0xD295,0xD29C,0xD2A0,0xD2A4,0xD2AC,0xD2B1,0xD2B8,0xD2B9,/* 0xA8-0xAF */
+	0xD2BC,0xD2BF,0xD2C0,0xD2C2,0xD2C8,0xD2C9,0xD2CB,0xD2D4,/* 0xB0-0xB7 */
+	0xD2D8,0xD2DC,0xD2E4,0xD2E5,0xD2F0,0xD2F1,0xD2F4,0xD2F8,/* 0xB8-0xBF */
+	0xD300,0xD301,0xD303,0xD305,0xD30C,0xD30D,0xD30E,0xD310,/* 0xC0-0xC7 */
+	0xD314,0xD316,0xD31C,0xD31D,0xD31F,0xD320,0xD321,0xD325,/* 0xC8-0xCF */
+	0xD328,0xD329,0xD32C,0xD330,0xD338,0xD339,0xD33B,0xD33C,/* 0xD0-0xD7 */
+	0xD33D,0xD344,0xD345,0xD37C,0xD37D,0xD380,0xD384,0xD38C,/* 0xD8-0xDF */
+	0xD38D,0xD38F,0xD390,0xD391,0xD398,0xD399,0xD39C,0xD3A0,/* 0xE0-0xE7 */
+	0xD3A8,0xD3A9,0xD3AB,0xD3AD,0xD3B4,0xD3B8,0xD3BC,0xD3C4,/* 0xE8-0xEF */
+	0xD3C5,0xD3C8,0xD3C9,0xD3D0,0xD3D8,0xD3E1,0xD3E3,0xD3EC,/* 0xF0-0xF7 */
+	0xD3ED,0xD3F0,0xD3F4,0xD3FC,0xD3FD,0xD3FF,0xD401,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_C7[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0xD408,0xD41D,0xD440,0xD444,0xD45C,0xD460,0xD464,/* 0xA0-0xA7 */
+	0xD46D,0xD46F,0xD478,0xD479,0xD47C,0xD47F,0xD480,0xD482,/* 0xA8-0xAF */
+	0xD488,0xD489,0xD48B,0xD48D,0xD494,0xD4A9,0xD4CC,0xD4D0,/* 0xB0-0xB7 */
+	0xD4D4,0xD4DC,0xD4DF,0xD4E8,0xD4EC,0xD4F0,0xD4F8,0xD4FB,/* 0xB8-0xBF */
+	0xD4FD,0xD504,0xD508,0xD50C,0xD514,0xD515,0xD517,0xD53C,/* 0xC0-0xC7 */
+	0xD53D,0xD540,0xD544,0xD54C,0xD54D,0xD54F,0xD551,0xD558,/* 0xC8-0xCF */
+	0xD559,0xD55C,0xD560,0xD565,0xD568,0xD569,0xD56B,0xD56D,/* 0xD0-0xD7 */
+	0xD574,0xD575,0xD578,0xD57C,0xD584,0xD585,0xD587,0xD588,/* 0xD8-0xDF */
+	0xD589,0xD590,0xD5A5,0xD5C8,0xD5C9,0xD5CC,0xD5D0,0xD5D2,/* 0xE0-0xE7 */
+	0xD5D8,0xD5D9,0xD5DB,0xD5DD,0xD5E4,0xD5E5,0xD5E8,0xD5EC,/* 0xE8-0xEF */
+	0xD5F4,0xD5F5,0xD5F7,0xD5F9,0xD600,0xD601,0xD604,0xD608,/* 0xF0-0xF7 */
+	0xD610,0xD611,0xD613,0xD614,0xD615,0xD61C,0xD620,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_C8[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0xD624,0xD62D,0xD638,0xD639,0xD63C,0xD640,0xD645,/* 0xA0-0xA7 */
+	0xD648,0xD649,0xD64B,0xD64D,0xD651,0xD654,0xD655,0xD658,/* 0xA8-0xAF */
+	0xD65C,0xD667,0xD669,0xD670,0xD671,0xD674,0xD683,0xD685,/* 0xB0-0xB7 */
+	0xD68C,0xD68D,0xD690,0xD694,0xD69D,0xD69F,0xD6A1,0xD6A8,/* 0xB8-0xBF */
+	0xD6AC,0xD6B0,0xD6B9,0xD6BB,0xD6C4,0xD6C5,0xD6C8,0xD6CC,/* 0xC0-0xC7 */
+	0xD6D1,0xD6D4,0xD6D7,0xD6D9,0xD6E0,0xD6E4,0xD6E8,0xD6F0,/* 0xC8-0xCF */
+	0xD6F5,0xD6FC,0xD6FD,0xD700,0xD704,0xD711,0xD718,0xD719,/* 0xD0-0xD7 */
+	0xD71C,0xD720,0xD728,0xD729,0xD72B,0xD72D,0xD734,0xD735,/* 0xD8-0xDF */
+	0xD738,0xD73C,0xD744,0xD747,0xD749,0xD750,0xD751,0xD754,/* 0xE0-0xE7 */
+	0xD756,0xD757,0xD758,0xD759,0xD760,0xD761,0xD763,0xD765,/* 0xE8-0xEF */
+	0xD769,0xD76C,0xD770,0xD774,0xD77C,0xD77D,0xD781,0xD788,/* 0xF0-0xF7 */
+	0xD789,0xD78C,0xD790,0xD798,0xD799,0xD79B,0xD79D,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_CA[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x4F3D,0x4F73,0x5047,0x50F9,0x52A0,0x53EF,0x5475,/* 0xA0-0xA7 */
+	0x54E5,0x5609,0x5AC1,0x5BB6,0x6687,0x67B6,0x67B7,0x67EF,/* 0xA8-0xAF */
+	0x6B4C,0x73C2,0x75C2,0x7A3C,0x82DB,0x8304,0x8857,0x8888,/* 0xB0-0xB7 */
+	0x8A36,0x8CC8,0x8DCF,0x8EFB,0x8FE6,0x99D5,0x523B,0x5374,/* 0xB8-0xBF */
+	0x5404,0x606A,0x6164,0x6BBC,0x73CF,0x811A,0x89BA,0x89D2,/* 0xC0-0xC7 */
+	0x95A3,0x4F83,0x520A,0x58BE,0x5978,0x59E6,0x5E72,0x5E79,/* 0xC8-0xCF */
+	0x61C7,0x63C0,0x6746,0x67EC,0x687F,0x6F97,0x764E,0x770B,/* 0xD0-0xD7 */
+	0x78F5,0x7A08,0x7AFF,0x7C21,0x809D,0x826E,0x8271,0x8AEB,/* 0xD8-0xDF */
+	0x9593,0x4E6B,0x559D,0x66F7,0x6E34,0x78A3,0x7AED,0x845B,/* 0xE0-0xE7 */
+	0x8910,0x874E,0x97A8,0x52D8,0x574E,0x582A,0x5D4C,0x611F,/* 0xE8-0xEF */
+	0x61BE,0x6221,0x6562,0x67D1,0x6A44,0x6E1B,0x7518,0x75B3,/* 0xF0-0xF7 */
+	0x76E3,0x77B0,0x7D3A,0x90AF,0x9451,0x9452,0x9F95,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_CB[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x5323,0x5CAC,0x7532,0x80DB,0x9240,0x9598,0x525B,/* 0xA0-0xA7 */
+	0x5808,0x59DC,0x5CA1,0x5D17,0x5EB7,0x5F3A,0x5F4A,0x6177,/* 0xA8-0xAF */
+	0x6C5F,0x757A,0x7586,0x7CE0,0x7D73,0x7DB1,0x7F8C,0x8154,/* 0xB0-0xB7 */
+	0x8221,0x8591,0x8941,0x8B1B,0x92FC,0x964D,0x9C47,0x4ECB,/* 0xB8-0xBF */
+	0x4EF7,0x500B,0x51F1,0x584F,0x6137,0x613E,0x6168,0x6539,/* 0xC0-0xC7 */
+	0x69EA,0x6F11,0x75A5,0x7686,0x76D6,0x7B87,0x82A5,0x84CB,/* 0xC8-0xCF */
+	0xF900,0x93A7,0x958B,0x5580,0x5BA2,0x5751,0xF901,0x7CB3,/* 0xD0-0xD7 */
+	0x7FB9,0x91B5,0x5028,0x53BB,0x5C45,0x5DE8,0x62D2,0x636E,/* 0xD8-0xDF */
+	0x64DA,0x64E7,0x6E20,0x70AC,0x795B,0x8DDD,0x8E1E,0xF902,/* 0xE0-0xE7 */
+	0x907D,0x9245,0x92F8,0x4E7E,0x4EF6,0x5065,0x5DFE,0x5EFA,/* 0xE8-0xEF */
+	0x6106,0x6957,0x8171,0x8654,0x8E47,0x9375,0x9A2B,0x4E5E,/* 0xF0-0xF7 */
+	0x5091,0x6770,0x6840,0x5109,0x528D,0x5292,0x6AA2,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_CC[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x77BC,0x9210,0x9ED4,0x52AB,0x602F,0x8FF2,0x5048,/* 0xA0-0xA7 */
+	0x61A9,0x63ED,0x64CA,0x683C,0x6A84,0x6FC0,0x8188,0x89A1,/* 0xA8-0xAF */
+	0x9694,0x5805,0x727D,0x72AC,0x7504,0x7D79,0x7E6D,0x80A9,/* 0xB0-0xB7 */
+	0x898B,0x8B74,0x9063,0x9D51,0x6289,0x6C7A,0x6F54,0x7D50,/* 0xB8-0xBF */
+	0x7F3A,0x8A23,0x517C,0x614A,0x7B9D,0x8B19,0x9257,0x938C,/* 0xC0-0xC7 */
+	0x4EAC,0x4FD3,0x501E,0x50BE,0x5106,0x52C1,0x52CD,0x537F,/* 0xC8-0xCF */
+	0x5770,0x5883,0x5E9A,0x5F91,0x6176,0x61AC,0x64CE,0x656C,/* 0xD0-0xD7 */
+	0x666F,0x66BB,0x66F4,0x6897,0x6D87,0x7085,0x70F1,0x749F,/* 0xD8-0xDF */
+	0x74A5,0x74CA,0x75D9,0x786C,0x78EC,0x7ADF,0x7AF6,0x7D45,/* 0xE0-0xE7 */
+	0x7D93,0x8015,0x803F,0x811B,0x8396,0x8B66,0x8F15,0x9015,/* 0xE8-0xEF */
+	0x93E1,0x9803,0x9838,0x9A5A,0x9BE8,0x4FC2,0x5553,0x583A,/* 0xF0-0xF7 */
+	0x5951,0x5B63,0x5C46,0x60B8,0x6212,0x6842,0x68B0,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_CD[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x68E8,0x6EAA,0x754C,0x7678,0x78CE,0x7A3D,0x7CFB,/* 0xA0-0xA7 */
+	0x7E6B,0x7E7C,0x8A08,0x8AA1,0x8C3F,0x968E,0x9DC4,0x53E4,/* 0xA8-0xAF */
+	0x53E9,0x544A,0x5471,0x56FA,0x59D1,0x5B64,0x5C3B,0x5EAB,/* 0xB0-0xB7 */
+	0x62F7,0x6537,0x6545,0x6572,0x66A0,0x67AF,0x69C1,0x6CBD,/* 0xB8-0xBF */
+	0x75FC,0x7690,0x777E,0x7A3F,0x7F94,0x8003,0x80A1,0x818F,/* 0xC0-0xC7 */
+	0x82E6,0x82FD,0x83F0,0x85C1,0x8831,0x88B4,0x8AA5,0xF903,/* 0xC8-0xCF */
+	0x8F9C,0x932E,0x96C7,0x9867,0x9AD8,0x9F13,0x54ED,0x659B,/* 0xD0-0xD7 */
+	0x66F2,0x688F,0x7A40,0x8C37,0x9D60,0x56F0,0x5764,0x5D11,/* 0xD8-0xDF */
+	0x6606,0x68B1,0x68CD,0x6EFE,0x7428,0x889E,0x9BE4,0x6C68,/* 0xE0-0xE7 */
+	0xF904,0x9AA8,0x4F9B,0x516C,0x5171,0x529F,0x5B54,0x5DE5,/* 0xE8-0xEF */
+	0x6050,0x606D,0x62F1,0x63A7,0x653B,0x73D9,0x7A7A,0x86A3,/* 0xF0-0xF7 */
+	0x8CA2,0x978F,0x4E32,0x5BE1,0x6208,0x679C,0x74DC,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_CE[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x79D1,0x83D3,0x8A87,0x8AB2,0x8DE8,0x904E,0x934B,/* 0xA0-0xA7 */
+	0x9846,0x5ED3,0x69E8,0x85FF,0x90ED,0xF905,0x51A0,0x5B98,/* 0xA8-0xAF */
+	0x5BEC,0x6163,0x68FA,0x6B3E,0x704C,0x742F,0x74D8,0x7BA1,/* 0xB0-0xB7 */
+	0x7F50,0x83C5,0x89C0,0x8CAB,0x95DC,0xFA2C,0x522E,0x605D,/* 0xB8-0xBF */
+	0x62EC,0x9002,0x4F8A,0x5149,0x5321,0x58D9,0x5EE3,0x66E0,/* 0xC0-0xC7 */
+	0x6D38,0x709A,0x72C2,0x73D6,0x7B50,0x80F1,0x945B,0x5366,/* 0xC8-0xCF */
+	0x639B,0x7F6B,0x4E56,0x5080,0x584A,0x58DE,0x602A,0x6127,/* 0xD0-0xD7 */
+	0x62D0,0x69D0,0x9B41,0x5B8F,0x7D18,0x80B1,0x8F5F,0x4EA4,/* 0xD8-0xDF */
+	0x50D1,0x54AC,0x55AC,0x5B0C,0x5DA0,0x5DE7,0x652A,0x654E,/* 0xE0-0xE7 */
+	0x6821,0x6A4B,0x72E1,0x768E,0x77EF,0x7D5E,0x7FF9,0x81A0,/* 0xE8-0xEF */
+	0x854E,0x86DF,0x8F03,0x8F4E,0x90CA,0x9903,0x9A55,0x9BAB,/* 0xF0-0xF7 */
+	0x4E18,0x4E45,0x4E5D,0x4EC7,0x4FF1,0x5177,0x52FE,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_CF[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x5340,0x53E3,0x53E5,0x548E,0x5614,0x5775,0x57A2,/* 0xA0-0xA7 */
+	0x5BC7,0x5D87,0x5ED0,0x61FC,0x62D8,0x6551,0x67B8,0x67E9,/* 0xA8-0xAF */
+	0x69CB,0x6B50,0x6BC6,0x6BEC,0x6C42,0x6E9D,0x7078,0x72D7,/* 0xB0-0xB7 */
+	0x7396,0x7403,0x77BF,0x77E9,0x7A76,0x7D7F,0x8009,0x81FC,/* 0xB8-0xBF */
+	0x8205,0x820A,0x82DF,0x8862,0x8B33,0x8CFC,0x8EC0,0x9011,/* 0xC0-0xC7 */
+	0x90B1,0x9264,0x92B6,0x99D2,0x9A45,0x9CE9,0x9DD7,0x9F9C,/* 0xC8-0xCF */
+	0x570B,0x5C40,0x83CA,0x97A0,0x97AB,0x9EB4,0x541B,0x7A98,/* 0xD0-0xD7 */
+	0x7FA4,0x88D9,0x8ECD,0x90E1,0x5800,0x5C48,0x6398,0x7A9F,/* 0xD8-0xDF */
+	0x5BAE,0x5F13,0x7A79,0x7AAE,0x828E,0x8EAC,0x5026,0x5238,/* 0xE0-0xE7 */
+	0x52F8,0x5377,0x5708,0x62F3,0x6372,0x6B0A,0x6DC3,0x7737,/* 0xE8-0xEF */
+	0x53A5,0x7357,0x8568,0x8E76,0x95D5,0x673A,0x6AC3,0x6F70,/* 0xF0-0xF7 */
+	0x8A6D,0x8ECC,0x994B,0xF906,0x6677,0x6B78,0x8CB4,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D0[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x9B3C,0xF907,0x53EB,0x572D,0x594E,0x63C6,0x69FB,/* 0xA0-0xA7 */
+	0x73EA,0x7845,0x7ABA,0x7AC5,0x7CFE,0x8475,0x898F,0x8D73,/* 0xA8-0xAF */
+	0x9035,0x95A8,0x52FB,0x5747,0x7547,0x7B60,0x83CC,0x921E,/* 0xB0-0xB7 */
+	0xF908,0x6A58,0x514B,0x524B,0x5287,0x621F,0x68D8,0x6975,/* 0xB8-0xBF */
+	0x9699,0x50C5,0x52A4,0x52E4,0x61C3,0x65A4,0x6839,0x69FF,/* 0xC0-0xC7 */
+	0x747E,0x7B4B,0x82B9,0x83EB,0x89B2,0x8B39,0x8FD1,0x9949,/* 0xC8-0xCF */
+	0xF909,0x4ECA,0x5997,0x64D2,0x6611,0x6A8E,0x7434,0x7981,/* 0xD0-0xD7 */
+	0x79BD,0x82A9,0x887E,0x887F,0x895F,0xF90A,0x9326,0x4F0B,/* 0xD8-0xDF */
+	0x53CA,0x6025,0x6271,0x6C72,0x7D1A,0x7D66,0x4E98,0x5162,/* 0xE0-0xE7 */
+	0x77DC,0x80AF,0x4F01,0x4F0E,0x5176,0x5180,0x55DC,0x5668,/* 0xE8-0xEF */
+	0x573B,0x57FA,0x57FC,0x5914,0x5947,0x5993,0x5BC4,0x5C90,/* 0xF0-0xF7 */
+	0x5D0E,0x5DF1,0x5E7E,0x5FCC,0x6280,0x65D7,0x65E3,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D1[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x671E,0x671F,0x675E,0x68CB,0x68C4,0x6A5F,0x6B3A,/* 0xA0-0xA7 */
+	0x6C23,0x6C7D,0x6C82,0x6DC7,0x7398,0x7426,0x742A,0x7482,/* 0xA8-0xAF */
+	0x74A3,0x7578,0x757F,0x7881,0x78EF,0x7941,0x7947,0x7948,/* 0xB0-0xB7 */
+	0x797A,0x7B95,0x7D00,0x7DBA,0x7F88,0x8006,0x802D,0x808C,/* 0xB8-0xBF */
+	0x8A18,0x8B4F,0x8C48,0x8D77,0x9321,0x9324,0x98E2,0x9951,/* 0xC0-0xC7 */
+	0x9A0E,0x9A0F,0x9A65,0x9E92,0x7DCA,0x4F76,0x5409,0x62EE,/* 0xC8-0xCF */
+	0x6854,0x91D1,0x55AB,0x513A,0xF90B,0xF90C,0x5A1C,0x61E6,/* 0xD0-0xD7 */
+	0xF90D,0x62CF,0x62FF,0xF90E,0xF90F,0xF910,0xF911,0xF912,/* 0xD8-0xDF */
+	0xF913,0x90A3,0xF914,0xF915,0xF916,0xF917,0xF918,0x8AFE,/* 0xE0-0xE7 */
+	0xF919,0xF91A,0xF91B,0xF91C,0x6696,0xF91D,0x7156,0xF91E,/* 0xE8-0xEF */
+	0xF91F,0x96E3,0xF920,0x634F,0x637A,0x5357,0xF921,0x678F,/* 0xF0-0xF7 */
+	0x6960,0x6E73,0xF922,0x7537,0xF923,0xF924,0xF925,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D2[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x7D0D,0xF926,0xF927,0x8872,0x56CA,0x5A18,0xF928,/* 0xA0-0xA7 */
+	0xF929,0xF92A,0xF92B,0xF92C,0x4E43,0xF92D,0x5167,0x5948,/* 0xA8-0xAF */
+	0x67F0,0x8010,0xF92E,0x5973,0x5E74,0x649A,0x79CA,0x5FF5,/* 0xB0-0xB7 */
+	0x606C,0x62C8,0x637B,0x5BE7,0x5BD7,0x52AA,0xF92F,0x5974,/* 0xB8-0xBF */
+	0x5F29,0x6012,0xF930,0xF931,0xF932,0x7459,0xF933,0xF934,/* 0xC0-0xC7 */
+	0xF935,0xF936,0xF937,0xF938,0x99D1,0xF939,0xF93A,0xF93B,/* 0xC8-0xCF */
+	0xF93C,0xF93D,0xF93E,0xF93F,0xF940,0xF941,0xF942,0xF943,/* 0xD0-0xD7 */
+	0x6FC3,0xF944,0xF945,0x81BF,0x8FB2,0x60F1,0xF946,0xF947,/* 0xD8-0xDF */
+	0x8166,0xF948,0xF949,0x5C3F,0xF94A,0xF94B,0xF94C,0xF94D,/* 0xE0-0xE7 */
+	0xF94E,0xF94F,0xF950,0xF951,0x5AE9,0x8A25,0x677B,0x7D10,/* 0xE8-0xEF */
+	0xF952,0xF953,0xF954,0xF955,0xF956,0xF957,0x80FD,0xF958,/* 0xF0-0xF7 */
+	0xF959,0x5C3C,0x6CE5,0x533F,0x6EBA,0x591A,0x8336,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D3[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x4E39,0x4EB6,0x4F46,0x55AE,0x5718,0x58C7,0x5F56,/* 0xA0-0xA7 */
+	0x65B7,0x65E6,0x6A80,0x6BB5,0x6E4D,0x77ED,0x7AEF,0x7C1E,/* 0xA8-0xAF */
+	0x7DDE,0x86CB,0x8892,0x9132,0x935B,0x64BB,0x6FBE,0x737A,/* 0xB0-0xB7 */
+	0x75B8,0x9054,0x5556,0x574D,0x61BA,0x64D4,0x66C7,0x6DE1,/* 0xB8-0xBF */
+	0x6E5B,0x6F6D,0x6FB9,0x75F0,0x8043,0x81BD,0x8541,0x8983,/* 0xC0-0xC7 */
+	0x8AC7,0x8B5A,0x931F,0x6C93,0x7553,0x7B54,0x8E0F,0x905D,/* 0xC8-0xCF */
+	0x5510,0x5802,0x5858,0x5E62,0x6207,0x649E,0x68E0,0x7576,/* 0xD0-0xD7 */
+	0x7CD6,0x87B3,0x9EE8,0x4EE3,0x5788,0x576E,0x5927,0x5C0D,/* 0xD8-0xDF */
+	0x5CB1,0x5E36,0x5F85,0x6234,0x64E1,0x73B3,0x81FA,0x888B,/* 0xE0-0xE7 */
+	0x8CB8,0x968A,0x9EDB,0x5B85,0x5FB7,0x60B3,0x5012,0x5200,/* 0xE8-0xEF */
+	0x5230,0x5716,0x5835,0x5857,0x5C0E,0x5C60,0x5CF6,0x5D8B,/* 0xF0-0xF7 */
+	0x5EA6,0x5F92,0x60BC,0x6311,0x6389,0x6417,0x6843,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D4[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x68F9,0x6AC2,0x6DD8,0x6E21,0x6ED4,0x6FE4,0x71FE,/* 0xA0-0xA7 */
+	0x76DC,0x7779,0x79B1,0x7A3B,0x8404,0x89A9,0x8CED,0x8DF3,/* 0xA8-0xAF */
+	0x8E48,0x9003,0x9014,0x9053,0xFA26,0x934D,0x9676,0x97DC,/* 0xB0-0xB7 */
+	0x6BD2,0x7006,0x7258,0x72A2,0x7368,0x7763,0x79BF,0x7BE4,/* 0xB8-0xBF */
+	0x7E9B,0x8B80,0x58A9,0x60C7,0x6566,0x65FD,0x66BE,0x6C8C,/* 0xC0-0xC7 */
+	0x711E,0x71C9,0x8C5A,0x9813,0x4E6D,0x7A81,0x4EDD,0x51AC,/* 0xC8-0xCF */
+	0x51CD,0x52D5,0x540C,0x61A7,0x6771,0x6850,0x68DF,0x6D1E,/* 0xD0-0xD7 */
+	0x6F7C,0x75BC,0x77B3,0x7AE5,0x80F4,0x8463,0x9285,0x515C,/* 0xD8-0xDF */
+	0x6597,0x675C,0x6793,0x75D8,0x7AC7,0x8373,0xF95A,0x8C46,/* 0xE0-0xE7 */
+	0x9017,0x982D,0x5C6F,0x81C0,0x829A,0x9041,0x906F,0x920D,/* 0xE8-0xEF */
+	0x5F97,0x5D9D,0x6A59,0x71C8,0x767B,0x7B49,0x85E4,0x8B04,/* 0xF0-0xF7 */
+	0x9127,0x9A30,0x5587,0x61F6,0xF95B,0x7669,0x7F85,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D5[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x863F,0x87BA,0x88F8,0x908F,0xF95C,0x6D1B,0x70D9,/* 0xA0-0xA7 */
+	0x73DE,0x7D61,0x843D,0xF95D,0x916A,0x99F1,0xF95E,0x4E82,/* 0xA8-0xAF */
+	0x5375,0x6B04,0x6B12,0x703E,0x721B,0x862D,0x9E1E,0x524C,/* 0xB0-0xB7 */
+	0x8FA3,0x5D50,0x64E5,0x652C,0x6B16,0x6FEB,0x7C43,0x7E9C,/* 0xB8-0xBF */
+	0x85CD,0x8964,0x89BD,0x62C9,0x81D8,0x881F,0x5ECA,0x6717,/* 0xC0-0xC7 */
+	0x6D6A,0x72FC,0x7405,0x746F,0x8782,0x90DE,0x4F86,0x5D0D,/* 0xC8-0xCF */
+	0x5FA0,0x840A,0x51B7,0x63A0,0x7565,0x4EAE,0x5006,0x5169,/* 0xD0-0xD7 */
+	0x51C9,0x6881,0x6A11,0x7CAE,0x7CB1,0x7CE7,0x826F,0x8AD2,/* 0xD8-0xDF */
+	0x8F1B,0x91CF,0x4FB6,0x5137,0x52F5,0x5442,0x5EEC,0x616E,/* 0xE0-0xE7 */
+	0x623E,0x65C5,0x6ADA,0x6FFE,0x792A,0x85DC,0x8823,0x95AD,/* 0xE8-0xEF */
+	0x9A62,0x9A6A,0x9E97,0x9ECE,0x529B,0x66C6,0x6B77,0x701D,/* 0xF0-0xF7 */
+	0x792B,0x8F62,0x9742,0x6190,0x6200,0x6523,0x6F23,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D6[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x7149,0x7489,0x7DF4,0x806F,0x84EE,0x8F26,0x9023,/* 0xA0-0xA7 */
+	0x934A,0x51BD,0x5217,0x52A3,0x6D0C,0x70C8,0x88C2,0x5EC9,/* 0xA8-0xAF */
+	0x6582,0x6BAE,0x6FC2,0x7C3E,0x7375,0x4EE4,0x4F36,0x56F9,/* 0xB0-0xB7 */
+	0xF95F,0x5CBA,0x5DBA,0x601C,0x73B2,0x7B2D,0x7F9A,0x7FCE,/* 0xB8-0xBF */
+	0x8046,0x901E,0x9234,0x96F6,0x9748,0x9818,0x9F61,0x4F8B,/* 0xC0-0xC7 */
+	0x6FA7,0x79AE,0x91B4,0x96B7,0x52DE,0xF960,0x6488,0x64C4,/* 0xC8-0xCF */
+	0x6AD3,0x6F5E,0x7018,0x7210,0x76E7,0x8001,0x8606,0x865C,/* 0xD0-0xD7 */
+	0x8DEF,0x8F05,0x9732,0x9B6F,0x9DFA,0x9E75,0x788C,0x797F,/* 0xD8-0xDF */
+	0x7DA0,0x83C9,0x9304,0x9E7F,0x9E93,0x8AD6,0x58DF,0x5F04,/* 0xE0-0xE7 */
+	0x6727,0x7027,0x74CF,0x7C60,0x807E,0x5121,0x7028,0x7262,/* 0xE8-0xEF */
+	0x78CA,0x8CC2,0x8CDA,0x8CF4,0x96F7,0x4E86,0x50DA,0x5BEE,/* 0xF0-0xF7 */
+	0x5ED6,0x6599,0x71CE,0x7642,0x77AD,0x804A,0x84FC,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D7[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x907C,0x9B27,0x9F8D,0x58D8,0x5A41,0x5C62,0x6A13,/* 0xA0-0xA7 */
+	0x6DDA,0x6F0F,0x763B,0x7D2F,0x7E37,0x851E,0x8938,0x93E4,/* 0xA8-0xAF */
+	0x964B,0x5289,0x65D2,0x67F3,0x69B4,0x6D41,0x6E9C,0x700F,/* 0xB0-0xB7 */
+	0x7409,0x7460,0x7559,0x7624,0x786B,0x8B2C,0x985E,0x516D,/* 0xB8-0xBF */
+	0x622E,0x9678,0x4F96,0x502B,0x5D19,0x6DEA,0x7DB8,0x8F2A,/* 0xC0-0xC7 */
+	0x5F8B,0x6144,0x6817,0xF961,0x9686,0x52D2,0x808B,0x51DC,/* 0xC8-0xCF */
+	0x51CC,0x695E,0x7A1C,0x7DBE,0x83F1,0x9675,0x4FDA,0x5229,/* 0xD0-0xD7 */
+	0x5398,0x540F,0x550E,0x5C65,0x60A7,0x674E,0x68A8,0x6D6C,/* 0xD8-0xDF */
+	0x7281,0x72F8,0x7406,0x7483,0xF962,0x75E2,0x7C6C,0x7F79,/* 0xE0-0xE7 */
+	0x7FB8,0x8389,0x88CF,0x88E1,0x91CC,0x91D0,0x96E2,0x9BC9,/* 0xE8-0xEF */
+	0x541D,0x6F7E,0x71D0,0x7498,0x85FA,0x8EAA,0x96A3,0x9C57,/* 0xF0-0xF7 */
+	0x9E9F,0x6797,0x6DCB,0x7433,0x81E8,0x9716,0x782C,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D8[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x7ACB,0x7B20,0x7C92,0x6469,0x746A,0x75F2,0x78BC,/* 0xA0-0xA7 */
+	0x78E8,0x99AC,0x9B54,0x9EBB,0x5BDE,0x5E55,0x6F20,0x819C,/* 0xA8-0xAF */
+	0x83AB,0x9088,0x4E07,0x534D,0x5A29,0x5DD2,0x5F4E,0x6162,/* 0xB0-0xB7 */
+	0x633D,0x6669,0x66FC,0x6EFF,0x6F2B,0x7063,0x779E,0x842C,/* 0xB8-0xBF */
+	0x8513,0x883B,0x8F13,0x9945,0x9C3B,0x551C,0x62B9,0x672B,/* 0xC0-0xC7 */
+	0x6CAB,0x8309,0x896A,0x977A,0x4EA1,0x5984,0x5FD8,0x5FD9,/* 0xC8-0xCF */
+	0x671B,0x7DB2,0x7F54,0x8292,0x832B,0x83BD,0x8F1E,0x9099,/* 0xD0-0xD7 */
+	0x57CB,0x59B9,0x5A92,0x5BD0,0x6627,0x679A,0x6885,0x6BCF,/* 0xD8-0xDF */
+	0x7164,0x7F75,0x8CB7,0x8CE3,0x9081,0x9B45,0x8108,0x8C8A,/* 0xE0-0xE7 */
+	0x964C,0x9A40,0x9EA5,0x5B5F,0x6C13,0x731B,0x76F2,0x76DF,/* 0xE8-0xEF */
+	0x840C,0x51AA,0x8993,0x514D,0x5195,0x52C9,0x68C9,0x6C94,/* 0xF0-0xF7 */
+	0x7704,0x7720,0x7DBF,0x7DEC,0x9762,0x9EB5,0x6EC5,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D9[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x8511,0x51A5,0x540D,0x547D,0x660E,0x669D,0x6927,/* 0xA0-0xA7 */
+	0x6E9F,0x76BF,0x7791,0x8317,0x84C2,0x879F,0x9169,0x9298,/* 0xA8-0xAF */
+	0x9CF4,0x8882,0x4FAE,0x5192,0x52DF,0x59C6,0x5E3D,0x6155,/* 0xB0-0xB7 */
+	0x6478,0x6479,0x66AE,0x67D0,0x6A21,0x6BCD,0x6BDB,0x725F,/* 0xB8-0xBF */
+	0x7261,0x7441,0x7738,0x77DB,0x8017,0x82BC,0x8305,0x8B00,/* 0xC0-0xC7 */
+	0x8B28,0x8C8C,0x6728,0x6C90,0x7267,0x76EE,0x7766,0x7A46,/* 0xC8-0xCF */
+	0x9DA9,0x6B7F,0x6C92,0x5922,0x6726,0x8499,0x536F,0x5893,/* 0xD0-0xD7 */
+	0x5999,0x5EDF,0x63CF,0x6634,0x6773,0x6E3A,0x732B,0x7AD7,/* 0xD8-0xDF */
+	0x82D7,0x9328,0x52D9,0x5DEB,0x61AE,0x61CB,0x620A,0x62C7,/* 0xE0-0xE7 */
+	0x64AB,0x65E0,0x6959,0x6B66,0x6BCB,0x7121,0x73F7,0x755D,/* 0xE8-0xEF */
+	0x7E46,0x821E,0x8302,0x856A,0x8AA3,0x8CBF,0x9727,0x9D61,/* 0xF0-0xF7 */
+	0x58A8,0x9ED8,0x5011,0x520E,0x543B,0x554F,0x6587,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_DA[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x6C76,0x7D0A,0x7D0B,0x805E,0x868A,0x9580,0x96EF,/* 0xA0-0xA7 */
+	0x52FF,0x6C95,0x7269,0x5473,0x5A9A,0x5C3E,0x5D4B,0x5F4C,/* 0xA8-0xAF */
+	0x5FAE,0x672A,0x68B6,0x6963,0x6E3C,0x6E44,0x7709,0x7C73,/* 0xB0-0xB7 */
+	0x7F8E,0x8587,0x8B0E,0x8FF7,0x9761,0x9EF4,0x5CB7,0x60B6,/* 0xB8-0xBF */
+	0x610D,0x61AB,0x654F,0x65FB,0x65FC,0x6C11,0x6CEF,0x739F,/* 0xC0-0xC7 */
+	0x73C9,0x7DE1,0x9594,0x5BC6,0x871C,0x8B10,0x525D,0x535A,/* 0xC8-0xCF */
+	0x62CD,0x640F,0x64B2,0x6734,0x6A38,0x6CCA,0x73C0,0x749E,/* 0xD0-0xD7 */
+	0x7B94,0x7C95,0x7E1B,0x818A,0x8236,0x8584,0x8FEB,0x96F9,/* 0xD8-0xDF */
+	0x99C1,0x4F34,0x534A,0x53CD,0x53DB,0x62CC,0x642C,0x6500,/* 0xE0-0xE7 */
+	0x6591,0x69C3,0x6CEE,0x6F58,0x73ED,0x7554,0x7622,0x76E4,/* 0xE8-0xEF */
+	0x76FC,0x78D0,0x78FB,0x792C,0x7D46,0x822C,0x87E0,0x8FD4,/* 0xF0-0xF7 */
+	0x9812,0xFA2A,0x52C3,0x62D4,0x64A5,0x6E24,0x6F51,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_DB[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x767C,0x8DCB,0x91B1,0x9262,0x9AEE,0x9B43,0x5023,/* 0xA0-0xA7 */
+	0x508D,0x574A,0x59A8,0x5C28,0x5E47,0x5F77,0x623F,0x653E,/* 0xA8-0xAF */
+	0x65B9,0x65C1,0x6609,0x678B,0x699C,0x6EC2,0x78C5,0x7D21,/* 0xB0-0xB7 */
+	0x80AA,0x8180,0x822B,0x82B3,0x84A1,0x868C,0x8A2A,0x8B17,/* 0xB8-0xBF */
+	0x90A6,0x9632,0x9F90,0x500D,0x4FF3,0xF963,0x57F9,0x5F98,/* 0xC0-0xC7 */
+	0x62DC,0x6392,0x676F,0x6E43,0x7119,0x76C3,0x80CC,0x80DA,/* 0xC8-0xCF */
+	0x88F4,0x88F5,0x8919,0x8CE0,0x8F29,0x914D,0x966A,0x4F2F,/* 0xD0-0xD7 */
+	0x4F70,0x5E1B,0x67CF,0x6822,0x767D,0x767E,0x9B44,0x5E61,/* 0xD8-0xDF */
+	0x6A0A,0x7169,0x71D4,0x756A,0xF964,0x7E41,0x8543,0x85E9,/* 0xE0-0xE7 */
+	0x98DC,0x4F10,0x7B4F,0x7F70,0x95A5,0x51E1,0x5E06,0x68B5,/* 0xE8-0xEF */
+	0x6C3E,0x6C4E,0x6CDB,0x72AF,0x7BC4,0x8303,0x6CD5,0x743A,/* 0xF0-0xF7 */
+	0x50FB,0x5288,0x58C1,0x64D8,0x6A97,0x74A7,0x7656,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_DC[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x78A7,0x8617,0x95E2,0x9739,0xF965,0x535E,0x5F01,/* 0xA0-0xA7 */
+	0x8B8A,0x8FA8,0x8FAF,0x908A,0x5225,0x77A5,0x9C49,0x9F08,/* 0xA8-0xAF */
+	0x4E19,0x5002,0x5175,0x5C5B,0x5E77,0x661E,0x663A,0x67C4,/* 0xB0-0xB7 */
+	0x68C5,0x70B3,0x7501,0x75C5,0x79C9,0x7ADD,0x8F27,0x9920,/* 0xB8-0xBF */
+	0x9A08,0x4FDD,0x5821,0x5831,0x5BF6,0x666E,0x6B65,0x6D11,/* 0xC0-0xC7 */
+	0x6E7A,0x6F7D,0x73E4,0x752B,0x83E9,0x88DC,0x8913,0x8B5C,/* 0xC8-0xCF */
+	0x8F14,0x4F0F,0x50D5,0x5310,0x535C,0x5B93,0x5FA9,0x670D,/* 0xD0-0xD7 */
+	0xFA1B,0x8179,0x832F,0x8514,0x8907,0x8986,0x8F39,0x8F3B,/* 0xD8-0xDF */
+	0x99A5,0x9C12,0x672C,0x4E76,0x4FF8,0x5949,0x5C01,0x5CEF,/* 0xE0-0xE7 */
+	0x5CF0,0x6367,0x68D2,0x70FD,0x71A2,0x742B,0x7E2B,0x84EC,/* 0xE8-0xEF */
+	0x8702,0x9022,0x92D2,0x9CF3,0x4E0D,0x4ED8,0x4FEF,0x5085,/* 0xF0-0xF7 */
+	0x5256,0x526F,0x5426,0x5490,0x57E0,0x592B,0x5A66,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_DD[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x5B5A,0x5B75,0x5BCC,0x5E9C,0xF966,0x6276,0x6577,/* 0xA0-0xA7 */
+	0x65A7,0x6D6E,0x6EA5,0x7236,0x7B26,0x7C3F,0x7F36,0x8150,/* 0xA8-0xAF */
+	0x8151,0x819A,0x8240,0x8299,0x83A9,0x8A03,0x8CA0,0x8CE6,/* 0xB0-0xB7 */
+	0x8CFB,0x8D74,0x8DBA,0x90E8,0x91DC,0x961C,0x9644,0x99D9,/* 0xB8-0xBF */
+	0x9CE7,0x5317,0x5206,0x5429,0x5674,0x58B3,0x5954,0x596E,/* 0xC0-0xC7 */
+	0x5FFF,0x61A4,0x626E,0x6610,0x6C7E,0x711A,0x76C6,0x7C89,/* 0xC8-0xCF */
+	0x7CDE,0x7D1B,0x82AC,0x8CC1,0x96F0,0xF967,0x4F5B,0x5F17,/* 0xD0-0xD7 */
+	0x5F7F,0x62C2,0x5D29,0x670B,0x68DA,0x787C,0x7E43,0x9D6C,/* 0xD8-0xDF */
+	0x4E15,0x5099,0x5315,0x532A,0x5351,0x5983,0x5A62,0x5E87,/* 0xE0-0xE7 */
+	0x60B2,0x618A,0x6249,0x6279,0x6590,0x6787,0x69A7,0x6BD4,/* 0xE8-0xEF */
+	0x6BD6,0x6BD7,0x6BD8,0x6CB8,0xF968,0x7435,0x75FA,0x7812,/* 0xF0-0xF7 */
+	0x7891,0x79D5,0x79D8,0x7C83,0x7DCB,0x7FE1,0x80A5,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_DE[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x813E,0x81C2,0x83F2,0x871A,0x88E8,0x8AB9,0x8B6C,/* 0xA0-0xA7 */
+	0x8CBB,0x9119,0x975E,0x98DB,0x9F3B,0x56AC,0x5B2A,0x5F6C,/* 0xA8-0xAF */
+	0x658C,0x6AB3,0x6BAF,0x6D5C,0x6FF1,0x7015,0x725D,0x73AD,/* 0xB0-0xB7 */
+	0x8CA7,0x8CD3,0x983B,0x6191,0x6C37,0x8058,0x9A01,0x4E4D,/* 0xB8-0xBF */
+	0x4E8B,0x4E9B,0x4ED5,0x4F3A,0x4F3C,0x4F7F,0x4FDF,0x50FF,/* 0xC0-0xC7 */
+	0x53F2,0x53F8,0x5506,0x55E3,0x56DB,0x58EB,0x5962,0x5A11,/* 0xC8-0xCF */
+	0x5BEB,0x5BFA,0x5C04,0x5DF3,0x5E2B,0x5F99,0x601D,0x6368,/* 0xD0-0xD7 */
+	0x659C,0x65AF,0x67F6,0x67FB,0x68AD,0x6B7B,0x6C99,0x6CD7,/* 0xD8-0xDF */
+	0x6E23,0x7009,0x7345,0x7802,0x793E,0x7940,0x7960,0x79C1,/* 0xE0-0xE7 */
+	0x7BE9,0x7D17,0x7D72,0x8086,0x820D,0x838E,0x84D1,0x86C7,/* 0xE8-0xEF */
+	0x88DF,0x8A50,0x8A5E,0x8B1D,0x8CDC,0x8D66,0x8FAD,0x90AA,/* 0xF0-0xF7 */
+	0xFA2B,0x99DF,0x9E9D,0x524A,0xF969,0x6714,0xF96A,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_DF[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x5098,0x522A,0x5C71,0x6563,0x6C55,0x73CA,0x7523,/* 0xA0-0xA7 */
+	0x759D,0x7B97,0x849C,0x9178,0x9730,0x4E77,0x6492,0x6BBA,/* 0xA8-0xAF */
+	0x715E,0x85A9,0x4E09,0xF96B,0x6749,0x68EE,0x6E17,0x829F,/* 0xB0-0xB7 */
+	0x8518,0x886B,0x63F7,0x6F81,0x9212,0x98AF,0x4E0A,0x50B7,/* 0xB8-0xBF */
+	0x50CF,0x511F,0x5546,0x55AA,0x5617,0x5B40,0x5C19,0x5CE0,/* 0xC0-0xC7 */
+	0x5E38,0x5E8A,0x5EA0,0x5EC2,0x60F3,0x6851,0x6A61,0x6E58,/* 0xC8-0xCF */
+	0x723D,0x7240,0x72C0,0x76F8,0xFA1A,0x7BB1,0x7FD4,0x88F3,/* 0xD0-0xD7 */
+	0x89F4,0x8A73,0x8C61,0x8CDE,0x971C,0x585E,0x74BD,0x8CFD,/* 0xD8-0xDF */
+	0x55C7,0xF96C,0x7A61,0x7D22,0x8272,0x7272,0x751F,0x7525,/* 0xE0-0xE7 */
+	0xF96D,0x7B19,0x5885,0x58FB,0x5DBC,0x5E8F,0x5EB6,0x5F90,/* 0xE8-0xEF */
+	0x6055,0x6292,0x637F,0x654D,0x6691,0x66D9,0x66F8,0x6816,/* 0xF0-0xF7 */
+	0x68F2,0x7280,0x745E,0x7B6E,0x7D6E,0x7DD6,0x7F72,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E0[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x80E5,0x8212,0x85AF,0x897F,0x8A93,0x901D,0x92E4,/* 0xA0-0xA7 */
+	0x9ECD,0x9F20,0x5915,0x596D,0x5E2D,0x60DC,0x6614,0x6673,/* 0xA8-0xAF */
+	0x6790,0x6C50,0x6DC5,0x6F5F,0x77F3,0x78A9,0x84C6,0x91CB,/* 0xB0-0xB7 */
+	0x932B,0x4ED9,0x50CA,0x5148,0x5584,0x5B0B,0x5BA3,0x6247,/* 0xB8-0xBF */
+	0x657E,0x65CB,0x6E32,0x717D,0x7401,0x7444,0x7487,0x74BF,/* 0xC0-0xC7 */
+	0x766C,0x79AA,0x7DDA,0x7E55,0x7FA8,0x817A,0x81B3,0x8239,/* 0xC8-0xCF */
+	0x861A,0x87EC,0x8A75,0x8DE3,0x9078,0x9291,0x9425,0x994D,/* 0xD0-0xD7 */
+	0x9BAE,0x5368,0x5C51,0x6954,0x6CC4,0x6D29,0x6E2B,0x820C,/* 0xD8-0xDF */
+	0x859B,0x893B,0x8A2D,0x8AAA,0x96EA,0x9F67,0x5261,0x66B9,/* 0xE0-0xE7 */
+	0x6BB2,0x7E96,0x87FE,0x8D0D,0x9583,0x965D,0x651D,0x6D89,/* 0xE8-0xEF */
+	0x71EE,0xF96E,0x57CE,0x59D3,0x5BAC,0x6027,0x60FA,0x6210,/* 0xF0-0xF7 */
+	0x661F,0x665F,0x7329,0x73F9,0x76DB,0x7701,0x7B6C,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E1[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x8056,0x8072,0x8165,0x8AA0,0x9192,0x4E16,0x52E2,/* 0xA0-0xA7 */
+	0x6B72,0x6D17,0x7A05,0x7B39,0x7D30,0xF96F,0x8CB0,0x53EC,/* 0xA8-0xAF */
+	0x562F,0x5851,0x5BB5,0x5C0F,0x5C11,0x5DE2,0x6240,0x6383,/* 0xB0-0xB7 */
+	0x6414,0x662D,0x68B3,0x6CBC,0x6D88,0x6EAF,0x701F,0x70A4,/* 0xB8-0xBF */
+	0x71D2,0x7526,0x758F,0x758E,0x7619,0x7B11,0x7BE0,0x7C2B,/* 0xC0-0xC7 */
+	0x7D20,0x7D39,0x852C,0x856D,0x8607,0x8A34,0x900D,0x9061,/* 0xC8-0xCF */
+	0x90B5,0x92B7,0x97F6,0x9A37,0x4FD7,0x5C6C,0x675F,0x6D91,/* 0xD0-0xD7 */
+	0x7C9F,0x7E8C,0x8B16,0x8D16,0x901F,0x5B6B,0x5DFD,0x640D,/* 0xD8-0xDF */
+	0x84C0,0x905C,0x98E1,0x7387,0x5B8B,0x609A,0x677E,0x6DDE,/* 0xE0-0xE7 */
+	0x8A1F,0x8AA6,0x9001,0x980C,0x5237,0xF970,0x7051,0x788E,/* 0xE8-0xEF */
+	0x9396,0x8870,0x91D7,0x4FEE,0x53D7,0x55FD,0x56DA,0x5782,/* 0xF0-0xF7 */
+	0x58FD,0x5AC2,0x5B88,0x5CAB,0x5CC0,0x5E25,0x6101,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E2[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x620D,0x624B,0x6388,0x641C,0x6536,0x6578,0x6A39,/* 0xA0-0xA7 */
+	0x6B8A,0x6C34,0x6D19,0x6F31,0x71E7,0x72E9,0x7378,0x7407,/* 0xA8-0xAF */
+	0x74B2,0x7626,0x7761,0x79C0,0x7A57,0x7AEA,0x7CB9,0x7D8F,/* 0xB0-0xB7 */
+	0x7DAC,0x7E61,0x7F9E,0x8129,0x8331,0x8490,0x84DA,0x85EA,/* 0xB8-0xBF */
+	0x8896,0x8AB0,0x8B90,0x8F38,0x9042,0x9083,0x916C,0x9296,/* 0xC0-0xC7 */
+	0x92B9,0x968B,0x96A7,0x96A8,0x96D6,0x9700,0x9808,0x9996,/* 0xC8-0xCF */
+	0x9AD3,0x9B1A,0x53D4,0x587E,0x5919,0x5B70,0x5BBF,0x6DD1,/* 0xD0-0xD7 */
+	0x6F5A,0x719F,0x7421,0x74B9,0x8085,0x83FD,0x5DE1,0x5F87,/* 0xD8-0xDF */
+	0x5FAA,0x6042,0x65EC,0x6812,0x696F,0x6A53,0x6B89,0x6D35,/* 0xE0-0xE7 */
+	0x6DF3,0x73E3,0x76FE,0x77AC,0x7B4D,0x7D14,0x8123,0x821C,/* 0xE8-0xEF */
+	0x8340,0x84F4,0x8563,0x8A62,0x8AC4,0x9187,0x931E,0x9806,/* 0xF0-0xF7 */
+	0x99B4,0x620C,0x8853,0x8FF0,0x9265,0x5D07,0x5D27,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E3[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x5D69,0x745F,0x819D,0x8768,0x6FD5,0x62FE,0x7FD2,/* 0xA0-0xA7 */
+	0x8936,0x8972,0x4E1E,0x4E58,0x50E7,0x52DD,0x5347,0x627F,/* 0xA8-0xAF */
+	0x6607,0x7E69,0x8805,0x965E,0x4F8D,0x5319,0x5636,0x59CB,/* 0xB0-0xB7 */
+	0x5AA4,0x5C38,0x5C4E,0x5C4D,0x5E02,0x5F11,0x6043,0x65BD,/* 0xB8-0xBF */
+	0x662F,0x6642,0x67BE,0x67F4,0x731C,0x77E2,0x793A,0x7FC5,/* 0xC0-0xC7 */
+	0x8494,0x84CD,0x8996,0x8A66,0x8A69,0x8AE1,0x8C55,0x8C7A,/* 0xC8-0xCF */
+	0x57F4,0x5BD4,0x5F0F,0x606F,0x62ED,0x690D,0x6B96,0x6E5C,/* 0xD0-0xD7 */
+	0x7184,0x7BD2,0x8755,0x8B58,0x8EFE,0x98DF,0x98FE,0x4F38,/* 0xD8-0xDF */
+	0x4F81,0x4FE1,0x547B,0x5A20,0x5BB8,0x613C,0x65B0,0x6668,/* 0xE0-0xE7 */
+	0x71FC,0x7533,0xFA19,0x7D33,0x814E,0x81E3,0x8398,0x85AA,/* 0xE8-0xEF */
+	0x85CE,0x8703,0x8A0A,0x8EAB,0x8F9B,0xF971,0x8FC5,0x5931,/* 0xF0-0xF7 */
+	0x5BA4,0x5BE6,0x6089,0x5BE9,0x5C0B,0x5FC3,0x6C81,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E4[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0xF972,0x6DF1,0x700B,0x751A,0x82AF,0x8AF6,0x4EC0,/* 0xA0-0xA7 */
+	0x5341,0xF973,0x96D9,0x6C0F,0x4E9E,0x4FC4,0x5152,0x555E,/* 0xA8-0xAF */
+	0x5A25,0x5CE8,0x6211,0x7259,0x82BD,0x83AA,0x86FE,0x8859,/* 0xB0-0xB7 */
+	0x8A1D,0x963F,0x96C5,0x9913,0x9D09,0x9D5D,0x580A,0x5CB3,/* 0xB8-0xBF */
+	0x5DBD,0x5E44,0x60E1,0x6115,0x63E1,0x6A02,0x6E25,0x9102,/* 0xC0-0xC7 */
+	0x9354,0x984E,0x9C10,0x9F77,0x5B89,0x5CB8,0x6309,0x664F,/* 0xC8-0xCF */
+	0x6848,0x773C,0x96C1,0x978D,0x9854,0x9B9F,0x65A1,0x8B01,/* 0xD0-0xD7 */
+	0x8ECB,0x95BC,0x5535,0x5CA9,0x5DD6,0x5EB5,0x6697,0x764C,/* 0xD8-0xDF */
+	0x83F4,0x95C7,0x58D3,0x62BC,0x72CE,0x9D28,0x4EF0,0x592E,/* 0xE0-0xE7 */
+	0x600F,0x663B,0x6B83,0x79E7,0x9D26,0x5393,0x54C0,0x57C3,/* 0xE8-0xEF */
+	0x5D16,0x611B,0x66D6,0x6DAF,0x788D,0x827E,0x9698,0x9744,/* 0xF0-0xF7 */
+	0x5384,0x627C,0x6396,0x6DB2,0x7E0A,0x814B,0x984D,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E5[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x6AFB,0x7F4C,0x9DAF,0x9E1A,0x4E5F,0x503B,0x51B6,/* 0xA0-0xA7 */
+	0x591C,0x60F9,0x63F6,0x6930,0x723A,0x8036,0xF974,0x91CE,/* 0xA8-0xAF */
+	0x5F31,0xF975,0xF976,0x7D04,0x82E5,0x846F,0x84BB,0x85E5,/* 0xB0-0xB7 */
+	0x8E8D,0xF977,0x4F6F,0xF978,0xF979,0x58E4,0x5B43,0x6059,/* 0xB8-0xBF */
+	0x63DA,0x6518,0x656D,0x6698,0xF97A,0x694A,0x6A23,0x6D0B,/* 0xC0-0xC7 */
+	0x7001,0x716C,0x75D2,0x760D,0x79B3,0x7A70,0xF97B,0x7F8A,/* 0xC8-0xCF */
+	0xF97C,0x8944,0xF97D,0x8B93,0x91C0,0x967D,0xF97E,0x990A,/* 0xD0-0xD7 */
+	0x5704,0x5FA1,0x65BC,0x6F01,0x7600,0x79A6,0x8A9E,0x99AD,/* 0xD8-0xDF */
+	0x9B5A,0x9F6C,0x5104,0x61B6,0x6291,0x6A8D,0x81C6,0x5043,/* 0xE0-0xE7 */
+	0x5830,0x5F66,0x7109,0x8A00,0x8AFA,0x5B7C,0x8616,0x4FFA,/* 0xE8-0xEF */
+	0x513C,0x56B4,0x5944,0x63A9,0x6DF9,0x5DAA,0x696D,0x5186,/* 0xF0-0xF7 */
+	0x4E88,0x4F59,0xF97F,0xF980,0xF981,0x5982,0xF982,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E6[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0xF983,0x6B5F,0x6C5D,0xF984,0x74B5,0x7916,0xF985,/* 0xA0-0xA7 */
+	0x8207,0x8245,0x8339,0x8F3F,0x8F5D,0xF986,0x9918,0xF987,/* 0xA8-0xAF */
+	0xF988,0xF989,0x4EA6,0xF98A,0x57DF,0x5F79,0x6613,0xF98B,/* 0xB0-0xB7 */
+	0xF98C,0x75AB,0x7E79,0x8B6F,0xF98D,0x9006,0x9A5B,0x56A5,/* 0xB8-0xBF */
+	0x5827,0x59F8,0x5A1F,0x5BB4,0xF98E,0x5EF6,0xF98F,0xF990,/* 0xC0-0xC7 */
+	0x6350,0x633B,0xF991,0x693D,0x6C87,0x6CBF,0x6D8E,0x6D93,/* 0xC8-0xCF */
+	0x6DF5,0x6F14,0xF992,0x70DF,0x7136,0x7159,0xF993,0x71C3,/* 0xD0-0xD7 */
+	0x71D5,0xF994,0x784F,0x786F,0xF995,0x7B75,0x7DE3,0xF996,/* 0xD8-0xDF */
+	0x7E2F,0xF997,0x884D,0x8EDF,0xF998,0xF999,0xF99A,0x925B,/* 0xE0-0xE7 */
+	0xF99B,0x9CF6,0xF99C,0xF99D,0xF99E,0x6085,0x6D85,0xF99F,/* 0xE8-0xEF */
+	0x71B1,0xF9A0,0xF9A1,0x95B1,0x53AD,0xF9A2,0xF9A3,0xF9A4,/* 0xF0-0xF7 */
+	0x67D3,0xF9A5,0x708E,0x7130,0x7430,0x8276,0x82D2,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E7[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0xF9A6,0x95BB,0x9AE5,0x9E7D,0x66C4,0xF9A7,0x71C1,/* 0xA0-0xA7 */
+	0x8449,0xF9A8,0xF9A9,0x584B,0xF9AA,0xF9AB,0x5DB8,0x5F71,/* 0xA8-0xAF */
+	0xF9AC,0x6620,0x668E,0x6979,0x69AE,0x6C38,0x6CF3,0x6E36,/* 0xB0-0xB7 */
+	0x6F41,0x6FDA,0x701B,0x702F,0x7150,0x71DF,0x7370,0xF9AD,/* 0xB8-0xBF */
+	0x745B,0xF9AE,0x74D4,0x76C8,0x7A4E,0x7E93,0xF9AF,0xF9B0,/* 0xC0-0xC7 */
+	0x82F1,0x8A60,0x8FCE,0xF9B1,0x9348,0xF9B2,0x9719,0xF9B3,/* 0xC8-0xCF */
+	0xF9B4,0x4E42,0x502A,0xF9B5,0x5208,0x53E1,0x66F3,0x6C6D,/* 0xD0-0xD7 */
+	0x6FCA,0x730A,0x777F,0x7A62,0x82AE,0x85DD,0x8602,0xF9B6,/* 0xD8-0xDF */
+	0x88D4,0x8A63,0x8B7D,0x8C6B,0xF9B7,0x92B3,0xF9B8,0x9713,/* 0xE0-0xE7 */
+	0x9810,0x4E94,0x4F0D,0x4FC9,0x50B2,0x5348,0x543E,0x5433,/* 0xE8-0xEF */
+	0x55DA,0x5862,0x58BA,0x5967,0x5A1B,0x5BE4,0x609F,0xF9B9,/* 0xF0-0xF7 */
+	0x61CA,0x6556,0x65FF,0x6664,0x68A7,0x6C5A,0x6FB3,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E8[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x70CF,0x71AC,0x7352,0x7B7D,0x8708,0x8AA4,0x9C32,/* 0xA0-0xA7 */
+	0x9F07,0x5C4B,0x6C83,0x7344,0x7389,0x923A,0x6EAB,0x7465,/* 0xA8-0xAF */
+	0x761F,0x7A69,0x7E15,0x860A,0xFA0C,0x58C5,0x64C1,0x74EE,/* 0xB0-0xB7 */
+	0x7515,0x7670,0x7FC1,0x9095,0x96CD,0x9954,0x6E26,0x74E6,/* 0xB8-0xBF */
+	0x7AA9,0x7AAA,0x81E5,0x86D9,0x8778,0x8A1B,0x5A49,0x5B8C,/* 0xC0-0xC7 */
+	0x5B9B,0x68A1,0x6900,0x6D63,0x73A9,0x7413,0x742C,0x7897,/* 0xC8-0xCF */
+	0x7DE9,0x7FEB,0x8118,0x8155,0x839E,0x8C4C,0x962E,0x9811,/* 0xD0-0xD7 */
+	0x66F0,0x5F80,0x65FA,0x6789,0x6C6A,0x738B,0x502D,0x5A03,/* 0xD8-0xDF */
+	0x6B6A,0x77EE,0x5916,0x5D6C,0x5DCD,0x7325,0x754F,0xF9BA,/* 0xE0-0xE7 */
+	0xF9BB,0x50E5,0x51F9,0x582F,0x592D,0x5996,0x59DA,0x5BE5,/* 0xE8-0xEF */
+	0xF9BC,0xF9BD,0x5DA2,0x62D7,0x6416,0x6493,0x64FE,0xF9BE,/* 0xF0-0xF7 */
+	0x66DC,0xF9BF,0x6A48,0xF9C0,0x71FF,0x7464,0xF9C1,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E9[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x7A88,0x7AAF,0x7E47,0x7E5E,0x8000,0x8170,0xF9C2,/* 0xA0-0xA7 */
+	0x87EF,0x8981,0x8B20,0x9059,0xF9C3,0x9080,0x9952,0x617E,/* 0xA8-0xAF */
+	0x6B32,0x6D74,0x7E1F,0x8925,0x8FB1,0x4FD1,0x50AD,0x5197,/* 0xB0-0xB7 */
+	0x52C7,0x57C7,0x5889,0x5BB9,0x5EB8,0x6142,0x6995,0x6D8C,/* 0xB8-0xBF */
+	0x6E67,0x6EB6,0x7194,0x7462,0x7528,0x752C,0x8073,0x8338,/* 0xC0-0xC7 */
+	0x84C9,0x8E0A,0x9394,0x93DE,0xF9C4,0x4E8E,0x4F51,0x5076,/* 0xC8-0xCF */
+	0x512A,0x53C8,0x53CB,0x53F3,0x5B87,0x5BD3,0x5C24,0x611A,/* 0xD0-0xD7 */
+	0x6182,0x65F4,0x725B,0x7397,0x7440,0x76C2,0x7950,0x7991,/* 0xD8-0xDF */
+	0x79B9,0x7D06,0xFA1E,0x828B,0x85D5,0x865E,0x8FC2,0x9047,/* 0xE0-0xE7 */
+	0x90F5,0x91EA,0x9685,0x96E8,0x96E9,0x52D6,0x5F67,0x65ED,/* 0xE8-0xEF */
+	0x6631,0x682F,0x715C,0x7A36,0x90C1,0x980A,0x4E91,0xF9C5,/* 0xF0-0xF7 */
+	0x6A52,0x6B9E,0x6F90,0x7189,0x8018,0x82B8,0x8553,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_EA[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x904B,0x9695,0x96F2,0x97FB,0x851A,0x9B31,0x4E90,/* 0xA0-0xA7 */
+	0x718A,0x96C4,0x5143,0x539F,0x54E1,0x5713,0x5712,0x57A3,/* 0xA8-0xAF */
+	0x5A9B,0x5AC4,0x5BC3,0x6028,0x613F,0x63F4,0x6C85,0x6D39,/* 0xB0-0xB7 */
+	0x6E72,0x6E90,0x7230,0x733F,0x7457,0x82D1,0x8881,0x8F45,/* 0xB8-0xBF */
+	0x9060,0xF9C6,0x9662,0x9858,0x9D1B,0x6708,0x8D8A,0x925E,/* 0xC0-0xC7 */
+	0x4F4D,0x5049,0x50DE,0x5371,0x570D,0x59D4,0x5A01,0x5C09,/* 0xC8-0xCF */
+	0x6170,0x6690,0x6E2D,0x7232,0x744B,0x7DEF,0x80C3,0x840E,/* 0xD0-0xD7 */
+	0x8466,0x853F,0x875F,0x885B,0x8918,0x8B02,0x9055,0x97CB,/* 0xD8-0xDF */
+	0x9B4F,0x4E73,0x4F91,0x5112,0x516A,0xF9C7,0x552F,0x55A9,/* 0xE0-0xE7 */
+	0x5B7A,0x5BA5,0x5E7C,0x5E7D,0x5EBE,0x60A0,0x60DF,0x6108,/* 0xE8-0xEF */
+	0x6109,0x63C4,0x6538,0x6709,0xF9C8,0x67D4,0x67DA,0xF9C9,/* 0xF0-0xF7 */
+	0x6961,0x6962,0x6CB9,0x6D27,0xF9CA,0x6E38,0xF9CB,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_EB[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x6FE1,0x7336,0x7337,0xF9CC,0x745C,0x7531,0xF9CD,/* 0xA0-0xA7 */
+	0x7652,0xF9CE,0xF9CF,0x7DAD,0x81FE,0x8438,0x88D5,0x8A98,/* 0xA8-0xAF */
+	0x8ADB,0x8AED,0x8E30,0x8E42,0x904A,0x903E,0x907A,0x9149,/* 0xB0-0xB7 */
+	0x91C9,0x936E,0xF9D0,0xF9D1,0x5809,0xF9D2,0x6BD3,0x8089,/* 0xB8-0xBF */
+	0x80B2,0xF9D3,0xF9D4,0x5141,0x596B,0x5C39,0xF9D5,0xF9D6,/* 0xC0-0xC7 */
+	0x6F64,0x73A7,0x80E4,0x8D07,0xF9D7,0x9217,0x958F,0xF9D8,/* 0xC8-0xCF */
+	0xF9D9,0xF9DA,0xF9DB,0x807F,0x620E,0x701C,0x7D68,0x878D,/* 0xD0-0xD7 */
+	0xF9DC,0x57A0,0x6069,0x6147,0x6BB7,0x8ABE,0x9280,0x96B1,/* 0xD8-0xDF */
+	0x4E59,0x541F,0x6DEB,0x852D,0x9670,0x97F3,0x98EE,0x63D6,/* 0xE0-0xE7 */
+	0x6CE3,0x9091,0x51DD,0x61C9,0x81BA,0x9DF9,0x4F9D,0x501A,/* 0xE8-0xEF */
+	0x5100,0x5B9C,0x610F,0x61FF,0x64EC,0x6905,0x6BC5,0x7591,/* 0xF0-0xF7 */
+	0x77E3,0x7FA9,0x8264,0x858F,0x87FB,0x8863,0x8ABC,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_EC[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x8B70,0x91AB,0x4E8C,0x4EE5,0x4F0A,0xF9DD,0xF9DE,/* 0xA0-0xA7 */
+	0x5937,0x59E8,0xF9DF,0x5DF2,0x5F1B,0x5F5B,0x6021,0xF9E0,/* 0xA8-0xAF */
+	0xF9E1,0xF9E2,0xF9E3,0x723E,0x73E5,0xF9E4,0x7570,0x75CD,/* 0xB0-0xB7 */
+	0xF9E5,0x79FB,0xF9E6,0x800C,0x8033,0x8084,0x82E1,0x8351,/* 0xB8-0xBF */
+	0xF9E7,0xF9E8,0x8CBD,0x8CB3,0x9087,0xF9E9,0xF9EA,0x98F4,/* 0xC0-0xC7 */
+	0x990C,0xF9EB,0xF9EC,0x7037,0xFA17,0x7FCA,0x7FCC,0x7FFC,/* 0xC8-0xCF */
+	0x8B1A,0x4EBA,0x4EC1,0x5203,0x5370,0xF9ED,0x54BD,0x56E0,/* 0xD0-0xD7 */
+	0x59FB,0x5BC5,0x5F15,0x5FCD,0x6E6E,0xF9EE,0xF9EF,0x7D6A,/* 0xD8-0xDF */
+	0x8335,0xF9F0,0x8693,0x8A8D,0xF9F1,0x976D,0x9777,0xF9F2,/* 0xE0-0xE7 */
+	0xF9F3,0x4E00,0x4F5A,0x4F7E,0x58F9,0x65E5,0x6EA2,0xFA25,/* 0xE8-0xEF */
+	0x93B0,0x99B9,0x4EFB,0x58EC,0x598A,0x59D9,0x6041,0xF9F4,/* 0xF0-0xF7 */
+	0xF9F5,0x7A14,0xF9F6,0x834F,0x8CC3,0x5165,0x5344,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_ED[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0xF9F7,0xF9F8,0xF9F9,0x4ECD,0x5269,0x5B55,0x82BF,/* 0xA0-0xA7 */
+	0x4ED4,0x523A,0x54A8,0x59C9,0x59FF,0x5B50,0x5B57,0x5B5C,/* 0xA8-0xAF */
+	0x6063,0x6148,0x6ECB,0x7099,0x716E,0x7386,0x74F7,0x75B5,/* 0xB0-0xB7 */
+	0x78C1,0x7D2B,0x8005,0x81EA,0x8328,0x8517,0x85C9,0x8AEE,/* 0xB8-0xBF */
+	0x8CC7,0x96CC,0x4F5C,0x52FA,0x56BC,0x65AB,0x6628,0x707C,/* 0xC0-0xC7 */
+	0x70B8,0x7235,0x7DBD,0x828D,0x914C,0x96C0,0x9D72,0x5B71,/* 0xC8-0xCF */
+	0x68E7,0x6B98,0x6F7A,0x76DE,0x5C91,0x66AB,0x6F5B,0x7BB4,/* 0xD0-0xD7 */
+	0x7C2A,0x8836,0x96DC,0x4E08,0x4ED7,0x5320,0x5834,0x58BB,/* 0xD8-0xDF */
+	0x58EF,0x596C,0x5C07,0x5E33,0x5E84,0x5F35,0x638C,0x66B2,/* 0xE0-0xE7 */
+	0x6756,0x6A1F,0x6AA3,0x6B0C,0x6F3F,0x7246,0xF9FA,0x7350,/* 0xE8-0xEF */
+	0x748B,0x7AE0,0x7CA7,0x8178,0x81DF,0x81E7,0x838A,0x846C,/* 0xF0-0xF7 */
+	0x8523,0x8594,0x85CF,0x88DD,0x8D13,0x91AC,0x9577,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_EE[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x969C,0x518D,0x54C9,0x5728,0x5BB0,0x624D,0x6750,/* 0xA0-0xA7 */
+	0x683D,0x6893,0x6E3D,0x6ED3,0x707D,0x7E21,0x88C1,0x8CA1,/* 0xA8-0xAF */
+	0x8F09,0x9F4B,0x9F4E,0x722D,0x7B8F,0x8ACD,0x931A,0x4F47,/* 0xB0-0xB7 */
+	0x4F4E,0x5132,0x5480,0x59D0,0x5E95,0x62B5,0x6775,0x696E,/* 0xB8-0xBF */
+	0x6A17,0x6CAE,0x6E1A,0x72D9,0x732A,0x75BD,0x7BB8,0x7D35,/* 0xC0-0xC7 */
+	0x82E7,0x83F9,0x8457,0x85F7,0x8A5B,0x8CAF,0x8E87,0x9019,/* 0xC8-0xCF */
+	0x90B8,0x96CE,0x9F5F,0x52E3,0x540A,0x5AE1,0x5BC2,0x6458,/* 0xD0-0xD7 */
+	0x6575,0x6EF4,0x72C4,0xF9FB,0x7684,0x7A4D,0x7B1B,0x7C4D,/* 0xD8-0xDF */
+	0x7E3E,0x7FDF,0x837B,0x8B2B,0x8CCA,0x8D64,0x8DE1,0x8E5F,/* 0xE0-0xE7 */
+	0x8FEA,0x8FF9,0x9069,0x93D1,0x4F43,0x4F7A,0x50B3,0x5168,/* 0xE8-0xEF */
+	0x5178,0x524D,0x526A,0x5861,0x587C,0x5960,0x5C08,0x5C55,/* 0xF0-0xF7 */
+	0x5EDB,0x609B,0x6230,0x6813,0x6BBF,0x6C08,0x6FB1,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_EF[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x714E,0x7420,0x7530,0x7538,0x7551,0x7672,0x7B4C,/* 0xA0-0xA7 */
+	0x7B8B,0x7BAD,0x7BC6,0x7E8F,0x8A6E,0x8F3E,0x8F49,0x923F,/* 0xA8-0xAF */
+	0x9293,0x9322,0x942B,0x96FB,0x985A,0x986B,0x991E,0x5207,/* 0xB0-0xB7 */
+	0x622A,0x6298,0x6D59,0x7664,0x7ACA,0x7BC0,0x7D76,0x5360,/* 0xB8-0xBF */
+	0x5CBE,0x5E97,0x6F38,0x70B9,0x7C98,0x9711,0x9B8E,0x9EDE,/* 0xC0-0xC7 */
+	0x63A5,0x647A,0x8776,0x4E01,0x4E95,0x4EAD,0x505C,0x5075,/* 0xC8-0xCF */
+	0x5448,0x59C3,0x5B9A,0x5E40,0x5EAD,0x5EF7,0x5F81,0x60C5,/* 0xD0-0xD7 */
+	0x633A,0x653F,0x6574,0x65CC,0x6676,0x6678,0x67FE,0x6968,/* 0xD8-0xDF */
+	0x6A89,0x6B63,0x6C40,0x6DC0,0x6DE8,0x6E1F,0x6E5E,0x701E,/* 0xE0-0xE7 */
+	0x70A1,0x738E,0x73FD,0x753A,0x775B,0x7887,0x798E,0x7A0B,/* 0xE8-0xEF */
+	0x7A7D,0xFA1D,0x7D8E,0x8247,0x8A02,0x8AEA,0x8C9E,0x912D,/* 0xF0-0xF7 */
+	0x914A,0x91D8,0x9266,0x92CC,0x9320,0x9706,0xFA1C,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F0[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x975C,0x9802,0x9F0E,0x5236,0x5291,0x557C,0x5824,/* 0xA0-0xA7 */
+	0x5E1D,0x5F1F,0x608C,0x63D0,0x68AF,0x6FDF,0x796D,0x7B2C,/* 0xA8-0xAF */
+	0x81CD,0x85BA,0x88FD,0xFA22,0x8E44,0x918D,0x9664,0x969B,/* 0xB0-0xB7 */
+	0x973D,0x984C,0x9F4A,0x4FCE,0x5146,0x51CB,0x52A9,0x5632,/* 0xB8-0xBF */
+	0x5F14,0x5F6B,0x63AA,0x64CD,0x65E9,0x6641,0x66FA,0x66F9,/* 0xC0-0xC7 */
+	0x671D,0x689D,0x68D7,0x69FD,0x6F15,0x6F6E,0x7167,0x71E5,/* 0xC8-0xCF */
+	0x722A,0x74AA,0x773A,0x7956,0x795A,0x79DF,0x7A20,0x7A95,/* 0xD0-0xD7 */
+	0x7C97,0x7CDF,0x7D44,0x7E70,0x8087,0x85FB,0x86A4,0x8A54,/* 0xD8-0xDF */
+	0x8ABF,0x8D99,0x8E81,0x9020,0x906D,0x91E3,0x963B,0x96D5,/* 0xE0-0xE7 */
+	0x9CE5,0x65CF,0x7C07,0x8DB3,0x93C3,0x5B58,0x5C0A,0x5352,/* 0xE8-0xEF */
+	0x62D9,0x731D,0x5027,0x5B97,0x5F9E,0x60B0,0x616B,0x68D5,/* 0xF0-0xF7 */
+	0x6DD9,0x742E,0x7A2E,0x7D42,0x7D9C,0x7E31,0x816B,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F1[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x8E2A,0x8E35,0x937E,0x9418,0x4F50,0x5750,0x5DE6,/* 0xA0-0xA7 */
+	0x5EA7,0x632B,0x7F6A,0x4E3B,0x4F4F,0x4F8F,0x505A,0x59DD,/* 0xA8-0xAF */
+	0x80C4,0x546A,0x5468,0x55FE,0x594F,0x5B99,0x5DDE,0x5EDA,/* 0xB0-0xB7 */
+	0x665D,0x6731,0x67F1,0x682A,0x6CE8,0x6D32,0x6E4A,0x6F8D,/* 0xB8-0xBF */
+	0x70B7,0x73E0,0x7587,0x7C4C,0x7D02,0x7D2C,0x7DA2,0x821F,/* 0xC0-0xC7 */
+	0x86DB,0x8A3B,0x8A85,0x8D70,0x8E8A,0x8F33,0x9031,0x914E,/* 0xC8-0xCF */
+	0x9152,0x9444,0x99D0,0x7AF9,0x7CA5,0x4FCA,0x5101,0x51C6,/* 0xD0-0xD7 */
+	0x57C8,0x5BEF,0x5CFB,0x6659,0x6A3D,0x6D5A,0x6E96,0x6FEC,/* 0xD8-0xDF */
+	0x710C,0x756F,0x7AE3,0x8822,0x9021,0x9075,0x96CB,0x99FF,/* 0xE0-0xE7 */
+	0x8301,0x4E2D,0x4EF2,0x8846,0x91CD,0x537D,0x6ADB,0x696B,/* 0xE8-0xEF */
+	0x6C41,0x847A,0x589E,0x618E,0x66FE,0x62EF,0x70DD,0x7511,/* 0xF0-0xF7 */
+	0x75C7,0x7E52,0x84B8,0x8B49,0x8D08,0x4E4B,0x53EA,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F2[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x54AB,0x5730,0x5740,0x5FD7,0x6301,0x6307,0x646F,/* 0xA0-0xA7 */
+	0x652F,0x65E8,0x667A,0x679D,0x67B3,0x6B62,0x6C60,0x6C9A,/* 0xA8-0xAF */
+	0x6F2C,0x77E5,0x7825,0x7949,0x7957,0x7D19,0x80A2,0x8102,/* 0xB0-0xB7 */
+	0x81F3,0x829D,0x82B7,0x8718,0x8A8C,0xF9FC,0x8D04,0x8DBE,/* 0xB8-0xBF */
+	0x9072,0x76F4,0x7A19,0x7A37,0x7E54,0x8077,0x5507,0x55D4,/* 0xC0-0xC7 */
+	0x5875,0x632F,0x6422,0x6649,0x664B,0x686D,0x699B,0x6B84,/* 0xC8-0xCF */
+	0x6D25,0x6EB1,0x73CD,0x7468,0x74A1,0x755B,0x75B9,0x76E1,/* 0xD0-0xD7 */
+	0x771E,0x778B,0x79E6,0x7E09,0x7E1D,0x81FB,0x852F,0x8897,/* 0xD8-0xDF */
+	0x8A3A,0x8CD1,0x8EEB,0x8FB0,0x9032,0x93AD,0x9663,0x9673,/* 0xE0-0xE7 */
+	0x9707,0x4F84,0x53F1,0x59EA,0x5AC9,0x5E19,0x684E,0x74C6,/* 0xE8-0xEF */
+	0x75BE,0x79E9,0x7A92,0x81A3,0x86ED,0x8CEA,0x8DCC,0x8FED,/* 0xF0-0xF7 */
+	0x659F,0x6715,0xF9FD,0x57F7,0x6F57,0x7DDD,0x8F2F,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F3[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x93F6,0x96C6,0x5FB5,0x61F2,0x6F84,0x4E14,0x4F98,/* 0xA0-0xA7 */
+	0x501F,0x53C9,0x55DF,0x5D6F,0x5DEE,0x6B21,0x6B64,0x78CB,/* 0xA8-0xAF */
+	0x7B9A,0xF9FE,0x8E49,0x8ECA,0x906E,0x6349,0x643E,0x7740,/* 0xB0-0xB7 */
+	0x7A84,0x932F,0x947F,0x9F6A,0x64B0,0x6FAF,0x71E6,0x74A8,/* 0xB8-0xBF */
+	0x74DA,0x7AC4,0x7C12,0x7E82,0x7CB2,0x7E98,0x8B9A,0x8D0A,/* 0xC0-0xC7 */
+	0x947D,0x9910,0x994C,0x5239,0x5BDF,0x64E6,0x672D,0x7D2E,/* 0xC8-0xCF */
+	0x50ED,0x53C3,0x5879,0x6158,0x6159,0x61FA,0x65AC,0x7AD9,/* 0xD0-0xD7 */
+	0x8B92,0x8B96,0x5009,0x5021,0x5275,0x5531,0x5A3C,0x5EE0,/* 0xD8-0xDF */
+	0x5F70,0x6134,0x655E,0x660C,0x6636,0x66A2,0x69CD,0x6EC4,/* 0xE0-0xE7 */
+	0x6F32,0x7316,0x7621,0x7A93,0x8139,0x8259,0x83D6,0x84BC,/* 0xE8-0xEF */
+	0x50B5,0x57F0,0x5BC0,0x5BE8,0x5F69,0x63A1,0x7826,0x7DB5,/* 0xF0-0xF7 */
+	0x83DC,0x8521,0x91C7,0x91F5,0x518A,0x67F5,0x7B56,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F4[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x8CAC,0x51C4,0x59BB,0x60BD,0x8655,0x501C,0xF9FF,/* 0xA0-0xA7 */
+	0x5254,0x5C3A,0x617D,0x621A,0x62D3,0x64F2,0x65A5,0x6ECC,/* 0xA8-0xAF */
+	0x7620,0x810A,0x8E60,0x965F,0x96BB,0x4EDF,0x5343,0x5598,/* 0xB0-0xB7 */
+	0x5929,0x5DDD,0x64C5,0x6CC9,0x6DFA,0x7394,0x7A7F,0x821B,/* 0xB8-0xBF */
+	0x85A6,0x8CE4,0x8E10,0x9077,0x91E7,0x95E1,0x9621,0x97C6,/* 0xC0-0xC7 */
+	0x51F8,0x54F2,0x5586,0x5FB9,0x64A4,0x6F88,0x7DB4,0x8F1F,/* 0xC8-0xCF */
+	0x8F4D,0x9435,0x50C9,0x5C16,0x6CBE,0x6DFB,0x751B,0x77BB,/* 0xD0-0xD7 */
+	0x7C3D,0x7C64,0x8A79,0x8AC2,0x581E,0x59BE,0x5E16,0x6377,/* 0xD8-0xDF */
+	0x7252,0x758A,0x776B,0x8ADC,0x8CBC,0x8F12,0x5EF3,0xFA12,/* 0xE0-0xE7 */
+	0x6DF8,0x807D,0x83C1,0x8ACB,0x9751,0x9BD6,0xFA00,0x5243,/* 0xE8-0xEF */
+	0x66FF,0x6D95,0x6EEF,0x7DE0,0x8AE6,0x902E,0x905E,0x9AD4,/* 0xF0-0xF7 */
+	0x521D,0x527F,0x54E8,0x6194,0x6284,0x62DB,0x68A2,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F5[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x6912,0x695A,0x6A35,0x7092,0x7126,0x785D,0x7901,/* 0xA0-0xA7 */
+	0x790E,0x79D2,0x7A0D,0x8096,0x8278,0x82D5,0x8349,0x8549,/* 0xA8-0xAF */
+	0x8C82,0x8D85,0x9162,0x918B,0x91AE,0x4FC3,0x56D1,0x71ED,/* 0xB0-0xB7 */
+	0x77D7,0x8700,0x89F8,0x5BF8,0x5FD6,0x6751,0x90A8,0x53E2,/* 0xB8-0xBF */
+	0xFA10,0x5BF5,0x60A4,0x6181,0x6460,0x7E3D,0x8070,0x8525,/* 0xC0-0xC7 */
+	0x9283,0x64AE,0x50AC,0x5D14,0x6700,0x589C,0x62BD,0x63A8,/* 0xC8-0xCF */
+	0x690E,0x6978,0x6A1E,0x6E6B,0x76BA,0x79CB,0x82BB,0x8429,/* 0xD0-0xD7 */
+	0x8ACF,0x8DA8,0x8FFD,0x9112,0x914B,0x919C,0x9310,0x9318,/* 0xD8-0xDF */
+	0x939A,0x96DB,0x9A36,0x9C0D,0x4E11,0x755C,0x795D,0x7AFA,/* 0xE0-0xE7 */
+	0x7B51,0x7BC9,0x7E2E,0x84C4,0x8E59,0x8E74,0x8EF8,0x9010,/* 0xE8-0xEF */
+	0x6625,0x693F,0x7443,0x51FA,0x672E,0x9EDC,0x5145,0x5FE0,/* 0xF0-0xF7 */
+	0x6C96,0x87F2,0x885D,0x8877,0x60B4,0x81B5,0x8403,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F6[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x8D05,0x53D6,0x5439,0x5634,0x5A36,0x5C31,0x708A,/* 0xA0-0xA7 */
+	0x7FE0,0x805A,0x8106,0x81ED,0x8DA3,0x9189,0x9A5F,0x9DF2,/* 0xA8-0xAF */
+	0x5074,0x4EC4,0x53A0,0x60FB,0x6E2C,0x5C64,0x4F88,0x5024,/* 0xB0-0xB7 */
+	0x55E4,0x5CD9,0x5E5F,0x6065,0x6894,0x6CBB,0x6DC4,0x71BE,/* 0xB8-0xBF */
+	0x75D4,0x75F4,0x7661,0x7A1A,0x7A49,0x7DC7,0x7DFB,0x7F6E,/* 0xC0-0xC7 */
+	0x81F4,0x86A9,0x8F1C,0x96C9,0x99B3,0x9F52,0x5247,0x52C5,/* 0xC8-0xCF */
+	0x98ED,0x89AA,0x4E03,0x67D2,0x6F06,0x4FB5,0x5BE2,0x6795,/* 0xD0-0xD7 */
+	0x6C88,0x6D78,0x741B,0x7827,0x91DD,0x937C,0x87C4,0x79E4,/* 0xD8-0xDF */
+	0x7A31,0x5FEB,0x4ED6,0x54A4,0x553E,0x58AE,0x59A5,0x60F0,/* 0xE0-0xE7 */
+	0x6253,0x62D6,0x6736,0x6955,0x8235,0x9640,0x99B1,0x99DD,/* 0xE8-0xEF */
+	0x502C,0x5353,0x5544,0x577C,0xFA01,0x6258,0xFA02,0x64E2,/* 0xF0-0xF7 */
+	0x666B,0x67DD,0x6FC1,0x6FEF,0x7422,0x7438,0x8A17,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F7[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x9438,0x5451,0x5606,0x5766,0x5F48,0x619A,0x6B4E,/* 0xA0-0xA7 */
+	0x7058,0x70AD,0x7DBB,0x8A95,0x596A,0x812B,0x63A2,0x7708,/* 0xA8-0xAF */
+	0x803D,0x8CAA,0x5854,0x642D,0x69BB,0x5B95,0x5E11,0x6E6F,/* 0xB0-0xB7 */
+	0xFA03,0x8569,0x514C,0x53F0,0x592A,0x6020,0x614B,0x6B86,/* 0xB8-0xBF */
+	0x6C70,0x6CF0,0x7B1E,0x80CE,0x82D4,0x8DC6,0x90B0,0x98B1,/* 0xC0-0xC7 */
+	0xFA04,0x64C7,0x6FA4,0x6491,0x6504,0x514E,0x5410,0x571F,/* 0xC8-0xCF */
+	0x8A0E,0x615F,0x6876,0xFA05,0x75DB,0x7B52,0x7D71,0x901A,/* 0xD0-0xD7 */
+	0x5806,0x69CC,0x817F,0x892A,0x9000,0x9839,0x5078,0x5957,/* 0xD8-0xDF */
+	0x59AC,0x6295,0x900F,0x9B2A,0x615D,0x7279,0x95D6,0x5761,/* 0xE0-0xE7 */
+	0x5A46,0x5DF4,0x628A,0x64AD,0x64FA,0x6777,0x6CE2,0x6D3E,/* 0xE8-0xEF */
+	0x722C,0x7436,0x7834,0x7F77,0x82AD,0x8DDB,0x9817,0x5224,/* 0xF0-0xF7 */
+	0x5742,0x677F,0x7248,0x74E3,0x8CA9,0x8FA6,0x9211,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F8[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x962A,0x516B,0x53ED,0x634C,0x4F69,0x5504,0x6096,/* 0xA0-0xA7 */
+	0x6557,0x6C9B,0x6D7F,0x724C,0x72FD,0x7A17,0x8987,0x8C9D,/* 0xA8-0xAF */
+	0x5F6D,0x6F8E,0x70F9,0x81A8,0x610E,0x4FBF,0x504F,0x6241,/* 0xB0-0xB7 */
+	0x7247,0x7BC7,0x7DE8,0x7FE9,0x904D,0x97AD,0x9A19,0x8CB6,/* 0xB8-0xBF */
+	0x576A,0x5E73,0x67B0,0x840D,0x8A55,0x5420,0x5B16,0x5E63,/* 0xC0-0xC7 */
+	0x5EE2,0x5F0A,0x6583,0x80BA,0x853D,0x9589,0x965B,0x4F48,/* 0xC8-0xCF */
+	0x5305,0x530D,0x530F,0x5486,0x54FA,0x5703,0x5E03,0x6016,/* 0xD0-0xD7 */
+	0x629B,0x62B1,0x6355,0xFA06,0x6CE1,0x6D66,0x75B1,0x7832,/* 0xD8-0xDF */
+	0x80DE,0x812F,0x82DE,0x8461,0x84B2,0x888D,0x8912,0x900B,/* 0xE0-0xE7 */
+	0x92EA,0x98FD,0x9B91,0x5E45,0x66B4,0x66DD,0x7011,0x7206,/* 0xE8-0xEF */
+	0xFA07,0x4FF5,0x527D,0x5F6A,0x6153,0x6753,0x6A19,0x6F02,/* 0xF0-0xF7 */
+	0x74E2,0x7968,0x8868,0x8C79,0x98C7,0x98C4,0x9A43,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F9[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x54C1,0x7A1F,0x6953,0x8AF7,0x8C4A,0x98A8,0x99AE,/* 0xA0-0xA7 */
+	0x5F7C,0x62AB,0x75B2,0x76AE,0x88AB,0x907F,0x9642,0x5339,/* 0xA8-0xAF */
+	0x5F3C,0x5FC5,0x6CCC,0x73CC,0x7562,0x758B,0x7B46,0x82FE,/* 0xB0-0xB7 */
+	0x999D,0x4E4F,0x903C,0x4E0B,0x4F55,0x53A6,0x590F,0x5EC8,/* 0xB8-0xBF */
+	0x6630,0x6CB3,0x7455,0x8377,0x8766,0x8CC0,0x9050,0x971E,/* 0xC0-0xC7 */
+	0x9C15,0x58D1,0x5B78,0x8650,0x8B14,0xFA2D,0x5BD2,0x6068,/* 0xC8-0xCF */
+	0x608D,0x65F1,0x6C57,0x6F22,0x6FA3,0x701A,0x7F55,0x7FF0,/* 0xD0-0xD7 */
+	0x9591,0x9592,0x9650,0x97D3,0x5272,0x8F44,0x51FD,0x542B,/* 0xD8-0xDF */
+	0x54B8,0x5563,0x558A,0x6ABB,0x6DB5,0x7DD8,0x8266,0x929C,/* 0xE0-0xE7 */
+	0x9677,0x9E79,0x5408,0x54C8,0x76D2,0x86E4,0x95A4,0x95D4,/* 0xE8-0xEF */
+	0x965C,0x4EA2,0x4F09,0x59EE,0x5AE6,0x5DF7,0x6052,0x6297,/* 0xF0-0xF7 */
+	0x676D,0x6841,0x6C86,0x6E2F,0x7F38,0x809B,0x822A,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_FA[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0xFA08,0xFA09,0x9805,0x4EA5,0x5055,0x54B3,0x5793,/* 0xA0-0xA7 */
+	0x595A,0x5B69,0x5BB3,0x61C8,0x6977,0x6D77,0x7023,0x87F9,/* 0xA8-0xAF */
+	0x89E3,0x8A72,0x8AE7,0x9082,0x99ED,0x9AB8,0x52BE,0x6838,/* 0xB0-0xB7 */
+	0x5016,0x5E78,0x674F,0x8347,0x884C,0x4EAB,0x5411,0x56AE,/* 0xB8-0xBF */
+	0x73E6,0x9115,0x97FF,0x9909,0x9957,0x9999,0x5653,0x589F,/* 0xC0-0xC7 */
+	0x865B,0x8A31,0x61B2,0x6AF6,0x737B,0x8ED2,0x6B47,0x96AA,/* 0xC8-0xCF */
+	0x9A57,0x5955,0x7200,0x8D6B,0x9769,0x4FD4,0x5CF4,0x5F26,/* 0xD0-0xD7 */
+	0x61F8,0x665B,0x6CEB,0x70AB,0x7384,0x73B9,0x73FE,0x7729,/* 0xD8-0xDF */
+	0x774D,0x7D43,0x7D62,0x7E23,0x8237,0x8852,0xFA0A,0x8CE2,/* 0xE0-0xE7 */
+	0x9249,0x986F,0x5B51,0x7A74,0x8840,0x9801,0x5ACC,0x4FE0,/* 0xE8-0xEF */
+	0x5354,0x593E,0x5CFD,0x633E,0x6D79,0x72F9,0x8105,0x8107,/* 0xF0-0xF7 */
+	0x83A2,0x92CF,0x9830,0x4EA8,0x5144,0x5211,0x578B,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_FB[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x5F62,0x6CC2,0x6ECE,0x7005,0x7050,0x70AF,0x7192,/* 0xA0-0xA7 */
+	0x73E9,0x7469,0x834A,0x87A2,0x8861,0x9008,0x90A2,0x93A3,/* 0xA8-0xAF */
+	0x99A8,0x516E,0x5F57,0x60E0,0x6167,0x66B3,0x8559,0x8E4A,/* 0xB0-0xB7 */
+	0x91AF,0x978B,0x4E4E,0x4E92,0x547C,0x58D5,0x58FA,0x597D,/* 0xB8-0xBF */
+	0x5CB5,0x5F27,0x6236,0x6248,0x660A,0x6667,0x6BEB,0x6D69,/* 0xC0-0xC7 */
+	0x6DCF,0x6E56,0x6EF8,0x6F94,0x6FE0,0x6FE9,0x705D,0x72D0,/* 0xC8-0xCF */
+	0x7425,0x745A,0x74E0,0x7693,0x795C,0x7CCA,0x7E1E,0x80E1,/* 0xD0-0xD7 */
+	0x82A6,0x846B,0x84BF,0x864E,0x865F,0x8774,0x8B77,0x8C6A,/* 0xD8-0xDF */
+	0x93AC,0x9800,0x9865,0x60D1,0x6216,0x9177,0x5A5A,0x660F,/* 0xE0-0xE7 */
+	0x6DF7,0x6E3E,0x743F,0x9B42,0x5FFD,0x60DA,0x7B0F,0x54C4,/* 0xE8-0xEF */
+	0x5F18,0x6C5E,0x6CD3,0x6D2A,0x70D8,0x7D05,0x8679,0x8A0C,/* 0xF0-0xF7 */
+	0x9D3B,0x5316,0x548C,0x5B05,0x6A3A,0x706B,0x7575,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_FC[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x798D,0x79BE,0x82B1,0x83EF,0x8A71,0x8B41,0x8CA8,/* 0xA0-0xA7 */
+	0x9774,0xFA0B,0x64F4,0x652B,0x78BA,0x78BB,0x7A6B,0x4E38,/* 0xA8-0xAF */
+	0x559A,0x5950,0x5BA6,0x5E7B,0x60A3,0x63DB,0x6B61,0x6665,/* 0xB0-0xB7 */
+	0x6853,0x6E19,0x7165,0x74B0,0x7D08,0x9084,0x9A69,0x9C25,/* 0xB8-0xBF */
+	0x6D3B,0x6ED1,0x733E,0x8C41,0x95CA,0x51F0,0x5E4C,0x5FA8,/* 0xC0-0xC7 */
+	0x604D,0x60F6,0x6130,0x614C,0x6643,0x6644,0x69A5,0x6CC1,/* 0xC8-0xCF */
+	0x6E5F,0x6EC9,0x6F62,0x714C,0x749C,0x7687,0x7BC1,0x7C27,/* 0xD0-0xD7 */
+	0x8352,0x8757,0x9051,0x968D,0x9EC3,0x532F,0x56DE,0x5EFB,/* 0xD8-0xDF */
+	0x5F8A,0x6062,0x6094,0x61F7,0x6666,0x6703,0x6A9C,0x6DEE,/* 0xE0-0xE7 */
+	0x6FAE,0x7070,0x736A,0x7E6A,0x81BE,0x8334,0x86D4,0x8AA8,/* 0xE8-0xEF */
+	0x8CC4,0x5283,0x7372,0x5B96,0x6A6B,0x9404,0x54EE,0x5686,/* 0xF0-0xF7 */
+	0x5B5D,0x6548,0x6585,0x66C9,0x689F,0x6D8D,0x6DC6,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_FD[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x40-0x47 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x48-0x4F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x50-0x57 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x58-0x5F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x60-0x67 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x68-0x6F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x70-0x77 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x723B,0x80B4,0x9175,0x9A4D,0x4FAF,0x5019,0x539A,/* 0xA0-0xA7 */
+	0x540E,0x543C,0x5589,0x55C5,0x5E3F,0x5F8C,0x673D,0x7166,/* 0xA8-0xAF */
+	0x73DD,0x9005,0x52DB,0x52F3,0x5864,0x58CE,0x7104,0x718F,/* 0xB0-0xB7 */
+	0x71FB,0x85B0,0x8A13,0x6688,0x85A8,0x55A7,0x6684,0x714A,/* 0xB8-0xBF */
+	0x8431,0x5349,0x5599,0x6BC1,0x5F59,0x5FBD,0x63EE,0x6689,/* 0xC0-0xC7 */
+	0x7147,0x8AF1,0x8F1D,0x9EBE,0x4F11,0x643A,0x70CB,0x7566,/* 0xC8-0xCF */
+	0x8667,0x6064,0x8B4E,0x9DF8,0x5147,0x51F6,0x5308,0x6D36,/* 0xD0-0xD7 */
+	0x80F8,0x9ED1,0x6615,0x6B23,0x7098,0x75D5,0x5403,0x5C79,/* 0xD8-0xDF */
+	0x7D07,0x8A16,0x6B20,0x6B3D,0x6B46,0x5438,0x6070,0x6D3D,/* 0xE0-0xE7 */
+	0x7FD5,0x8208,0x50D6,0xFA15,0x559C,0x566B,0x56CD,0x59EC,/* 0xE8-0xEF */
+	0x5B09,0x5E0C,0x6199,0x6198,0x6231,0x665E,0x66E6,0x7199,/* 0xF0-0xF7 */
+	0x71B9,0x71BA,0x72A7,0x79A7,0x7A00,0x7FB2,0x8A70,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t *page_charset2uni[256] = {
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   c2u_81, c2u_82, c2u_83, c2u_84, c2u_85, c2u_86, c2u_87, 
+	c2u_88, c2u_89, c2u_8A, c2u_8B, c2u_8C, c2u_8D, c2u_8E, c2u_8F, 
+	c2u_90, c2u_91, c2u_92, c2u_93, c2u_94, c2u_95, c2u_96, c2u_97, 
+	c2u_98, c2u_99, c2u_9A, c2u_9B, c2u_9C, c2u_9D, c2u_9E, c2u_9F, 
+	c2u_A0, c2u_A1, c2u_A2, c2u_A3, c2u_A4, c2u_A5, c2u_A6, c2u_A7, 
+	c2u_A8, c2u_A9, c2u_AA, c2u_AB, c2u_AC, c2u_AD, c2u_AE, c2u_AF, 
+	c2u_B0, c2u_B1, c2u_B2, c2u_B3, c2u_B4, c2u_B5, c2u_B6, c2u_B7, 
+	c2u_B8, c2u_B9, c2u_BA, c2u_BB, c2u_BC, c2u_BD, c2u_BE, c2u_BF, 
+	c2u_C0, c2u_C1, c2u_C2, c2u_C3, c2u_C4, c2u_C5, c2u_C6, c2u_C7, 
+	c2u_C8, NULL,   c2u_CA, c2u_CB, c2u_CC, c2u_CD, c2u_CE, c2u_CF, 
+	c2u_D0, c2u_D1, c2u_D2, c2u_D3, c2u_D4, c2u_D5, c2u_D6, c2u_D7, 
+	c2u_D8, c2u_D9, c2u_DA, c2u_DB, c2u_DC, c2u_DD, c2u_DE, c2u_DF, 
+	c2u_E0, c2u_E1, c2u_E2, c2u_E3, c2u_E4, c2u_E5, c2u_E6, c2u_E7, 
+	c2u_E8, c2u_E9, c2u_EA, c2u_EB, c2u_EC, c2u_ED, c2u_EE, c2u_EF, 
+	c2u_F0, c2u_F1, c2u_F2, c2u_F3, c2u_F4, c2u_F5, c2u_F6, c2u_F7, 
+	c2u_F8, c2u_F9, c2u_FA, c2u_FB, c2u_FC, c2u_FD, NULL,   NULL,   
+};
+
+static unsigned char u2c_01[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0xA9, 0xA2, 0xA9, 0xA2, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0xA8, 0xA4, 0xA9, 0xA4, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0xA9, 0xA5, 0xA8, 0xA6, 0xA9, 0xA6, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0xA9, 0xA7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA8, 0xA8, /* 0x3C-0x3F */
+	0xA9, 0xA8, 0xA8, 0xA9, 0xA9, 0xA9, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0xA9, 0xB0, 0xA8, 0xAF, 0xA9, 0xAF, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0xA8, 0xAB, 0xA9, 0xAB, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0xA8, 0xAE, 0xA9, 0xAE, /* 0x64-0x67 */
+};
+
+static unsigned char u2c_02[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA2, 0xA7, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0xA2, 0xB0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xA2, 0xA8, 0xA2, 0xAB, 0xA2, 0xAA, 0xA2, 0xAD, /* 0xD8-0xDB */
+	0x00, 0x00, 0xA2, 0xA9, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+};
+
+static unsigned char u2c_03[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0xA5, 0xC1, 0xA5, 0xC2, 0xA5, 0xC3, /* 0x90-0x93 */
+	0xA5, 0xC4, 0xA5, 0xC5, 0xA5, 0xC6, 0xA5, 0xC7, /* 0x94-0x97 */
+	0xA5, 0xC8, 0xA5, 0xC9, 0xA5, 0xCA, 0xA5, 0xCB, /* 0x98-0x9B */
+	0xA5, 0xCC, 0xA5, 0xCD, 0xA5, 0xCE, 0xA5, 0xCF, /* 0x9C-0x9F */
+	0xA5, 0xD0, 0xA5, 0xD1, 0x00, 0x00, 0xA5, 0xD2, /* 0xA0-0xA3 */
+	0xA5, 0xD3, 0xA5, 0xD4, 0xA5, 0xD5, 0xA5, 0xD6, /* 0xA4-0xA7 */
+	0xA5, 0xD7, 0xA5, 0xD8, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0xA5, 0xE1, 0xA5, 0xE2, 0xA5, 0xE3, /* 0xB0-0xB3 */
+	0xA5, 0xE4, 0xA5, 0xE5, 0xA5, 0xE6, 0xA5, 0xE7, /* 0xB4-0xB7 */
+	0xA5, 0xE8, 0xA5, 0xE9, 0xA5, 0xEA, 0xA5, 0xEB, /* 0xB8-0xBB */
+	0xA5, 0xEC, 0xA5, 0xED, 0xA5, 0xEE, 0xA5, 0xEF, /* 0xBC-0xBF */
+	0xA5, 0xF0, 0xA5, 0xF1, 0x00, 0x00, 0xA5, 0xF2, /* 0xC0-0xC3 */
+	0xA5, 0xF3, 0xA5, 0xF4, 0xA5, 0xF5, 0xA5, 0xF6, /* 0xC4-0xC7 */
+	0xA5, 0xF7, 0xA5, 0xF8, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+};
+
+static unsigned char u2c_04[512] = {
+	0x00, 0x00, 0xAC, 0xA7, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0xAC, 0xA1, 0xAC, 0xA2, 0xAC, 0xA3, 0xAC, 0xA4, /* 0x10-0x13 */
+	0xAC, 0xA5, 0xAC, 0xA6, 0xAC, 0xA8, 0xAC, 0xA9, /* 0x14-0x17 */
+	0xAC, 0xAA, 0xAC, 0xAB, 0xAC, 0xAC, 0xAC, 0xAD, /* 0x18-0x1B */
+	0xAC, 0xAE, 0xAC, 0xAF, 0xAC, 0xB0, 0xAC, 0xB1, /* 0x1C-0x1F */
+	0xAC, 0xB2, 0xAC, 0xB3, 0xAC, 0xB4, 0xAC, 0xB5, /* 0x20-0x23 */
+	0xAC, 0xB6, 0xAC, 0xB7, 0xAC, 0xB8, 0xAC, 0xB9, /* 0x24-0x27 */
+	0xAC, 0xBA, 0xAC, 0xBB, 0xAC, 0xBC, 0xAC, 0xBD, /* 0x28-0x2B */
+	0xAC, 0xBE, 0xAC, 0xBF, 0xAC, 0xC0, 0xAC, 0xC1, /* 0x2C-0x2F */
+	0xAC, 0xD1, 0xAC, 0xD2, 0xAC, 0xD3, 0xAC, 0xD4, /* 0x30-0x33 */
+	0xAC, 0xD5, 0xAC, 0xD6, 0xAC, 0xD8, 0xAC, 0xD9, /* 0x34-0x37 */
+	0xAC, 0xDA, 0xAC, 0xDB, 0xAC, 0xDC, 0xAC, 0xDD, /* 0x38-0x3B */
+	0xAC, 0xDE, 0xAC, 0xDF, 0xAC, 0xE0, 0xAC, 0xE1, /* 0x3C-0x3F */
+	0xAC, 0xE2, 0xAC, 0xE3, 0xAC, 0xE4, 0xAC, 0xE5, /* 0x40-0x43 */
+	0xAC, 0xE6, 0xAC, 0xE7, 0xAC, 0xE8, 0xAC, 0xE9, /* 0x44-0x47 */
+	0xAC, 0xEA, 0xAC, 0xEB, 0xAC, 0xEC, 0xAC, 0xED, /* 0x48-0x4B */
+	0xAC, 0xEE, 0xAC, 0xEF, 0xAC, 0xF0, 0xAC, 0xF1, /* 0x4C-0x4F */
+	0x00, 0x00, 0xAC, 0xD7, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+};
+
+static unsigned char u2c_11[512] = {
+	0xA4, 0xA1, 0xA4, 0xA2, 0xA4, 0xA4, 0xA4, 0xA7, /* 0x00-0x03 */
+	0xA4, 0xA8, 0xA4, 0xA9, 0xA4, 0xB1, 0xA4, 0xB2, /* 0x04-0x07 */
+	0xA4, 0xB3, 0xA4, 0xB5, 0xA4, 0xB6, 0xA4, 0xB7, /* 0x08-0x0B */
+	0xA4, 0xB8, 0xA4, 0xB9, 0xA4, 0xBA, 0xA4, 0xBB, /* 0x0C-0x0F */
+	0xA4, 0xBC, 0xA4, 0xBD, 0xA4, 0xBE, 0x00, 0x00, /* 0x10-0x13 */
+	0xA4, 0xD5, 0xA4, 0xD6, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0xA4, 0xDD, 0x00, 0x00, /* 0x18-0x1B */
+	0xA4, 0xDE, 0xA4, 0xE1, 0xA4, 0xE2, 0x00, 0x00, /* 0x1C-0x1F */
+	0xA4, 0xE3, 0xA4, 0xB4, 0xA4, 0xE4, 0xA4, 0xE5, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA4, 0xE6, /* 0x24-0x27 */
+	0x00, 0x00, 0xA4, 0xE7, 0x00, 0x00, 0xA4, 0xE8, /* 0x28-0x2B */
+	0xA4, 0xE9, 0xA4, 0xEA, 0xA4, 0xEB, 0xA4, 0xEC, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0xA4, 0xED, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0xA4, 0xEE, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0xA4, 0xB5, 0xA4, 0xB6, 0xA4, 0xB5, 0xA4, 0xB6, /* 0x3C-0x3F */
+	0xA4, 0xEF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0xA4, 0xF2, 0xA4, 0xF3, 0xA4, 0xF0, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0xA4, 0xB7, 0x00, 0x00, 0xA4, 0xB8, 0xA4, 0xB9, /* 0x4C-0x4F */
+	0xA4, 0xB8, 0xA4, 0xB9, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0xA4, 0xBA, 0xA4, 0xBA, 0x00, 0x00, 0xA4, 0xF4, /* 0x54-0x57 */
+	0xA4, 0xF5, 0xA4, 0xF6, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA4, 0xD4, /* 0x5C-0x5F */
+	0x00, 0x00, 0xA4, 0xBF, 0xA4, 0xC0, 0xA4, 0xC1, /* 0x60-0x63 */
+	0xA4, 0xC2, 0xA4, 0xC3, 0xA4, 0xC4, 0xA4, 0xC5, /* 0x64-0x67 */
+	0xA4, 0xC6, 0xA4, 0xC7, 0xA4, 0xC8, 0xA4, 0xC9, /* 0x68-0x6B */
+	0xA4, 0xCA, 0xA4, 0xCB, 0xA4, 0xCC, 0xA4, 0xCD, /* 0x6C-0x6F */
+	0xA4, 0xCE, 0xA4, 0xCF, 0xA4, 0xD0, 0xA4, 0xD1, /* 0x70-0x73 */
+	0xA4, 0xD2, 0xA4, 0xD3, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0xA4, 0xF7, 0xA4, 0xF8, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0xA4, 0xF9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0xA4, 0xFA, 0xA4, 0xFB, 0x00, 0x00, /* 0x90-0x93 */
+	0xA4, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0xA4, 0xFD, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0xA4, 0xFE, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xA4, 0xA1, 0xA4, 0xA2, 0xA4, 0xA3, 0xA4, 0xA4, /* 0xA8-0xAB */
+	0xA4, 0xA5, 0xA4, 0xA6, 0xA4, 0xA7, 0xA4, 0xA9, /* 0xAC-0xAF */
+	0xA4, 0xAA, 0xA4, 0xAB, 0xA4, 0xAC, 0xA4, 0xAD, /* 0xB0-0xB3 */
+	0xA4, 0xAE, 0xA4, 0xAF, 0xA4, 0xB0, 0xA4, 0xB1, /* 0xB4-0xB7 */
+	0xA4, 0xB2, 0xA4, 0xB4, 0xA4, 0xB5, 0xA4, 0xB6, /* 0xB8-0xBB */
+	0xA4, 0xB7, 0xA4, 0xB8, 0xA4, 0xBA, 0xA4, 0xBB, /* 0xBC-0xBF */
+	0xA4, 0xBC, 0xA4, 0xBD, 0xA4, 0xBE, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0xA4, 0xD6, 0xA4, 0xD7, /* 0xC4-0xC7 */
+	0xA4, 0xD8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0xA4, 0xD9, 0x00, 0x00, 0xA4, 0xDA, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA4, 0xDB, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA4, 0xDC, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xA4, 0xDD, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0xA4, 0xDE, 0xA4, 0xDF, 0x00, 0x00, 0xA4, 0xE0, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0xA4, 0xE8, 0xA4, 0xEA, /* 0xE4-0xE7 */
+	0xA4, 0xEC, 0x00, 0x00, 0xA4, 0xED, 0xA4, 0xEF, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0xA4, 0xF0, 0x00, 0x00, /* 0xEC-0xEF */
+	0xA4, 0xB7, 0xA4, 0xF2, 0xA4, 0xF3, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xA4, 0xF4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xA4, 0xF6, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_20[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0xA1, 0xAA, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0xA1, 0xAE, 0xA1, 0xAF, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0xA1, 0xB0, 0xA1, 0xB1, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0xA2, 0xD3, 0xA2, 0xD4, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0xA1, 0xA5, 0xA1, 0xA6, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xA2, 0xB6, 0x00, 0x00, 0xA1, 0xC7, 0xA1, 0xC8, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA1, 0xD8, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0xA9, 0xF9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA9, 0xFA, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xA9, 0xFB, 0xA9, 0xFC, 0xA9, 0xFD, /* 0x80-0x83 */
+	0xA9, 0xFE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x5C, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+};
+
+static unsigned char u2c_21[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA1, 0xC9, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xA2, 0xB5, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA7, 0xA4, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xA2, 0xE0, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0xA2, 0xE5, 0xA2, 0xE2, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0xA7, 0xD9, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA1, 0xCA, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA8, 0xF7, /* 0x50-0x53 */
+	0xA8, 0xF8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA8, 0xFB, /* 0x58-0x5B */
+	0xA8, 0xFC, 0xA8, 0xFD, 0xA8, 0xFE, 0x00, 0x00, /* 0x5C-0x5F */
+	0xA5, 0xB0, 0xA5, 0xB1, 0xA5, 0xB2, 0xA5, 0xB3, /* 0x60-0x63 */
+	0xA5, 0xB4, 0xA5, 0xB5, 0xA5, 0xB6, 0xA5, 0xB7, /* 0x64-0x67 */
+	0xA5, 0xB8, 0xA5, 0xB9, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0xA5, 0xA1, 0xA5, 0xA2, 0xA5, 0xA3, 0xA5, 0xA4, /* 0x70-0x73 */
+	0xA5, 0xA5, 0xA5, 0xA6, 0xA5, 0xA7, 0xA5, 0xA8, /* 0x74-0x77 */
+	0xA5, 0xA9, 0xA5, 0xAA, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0xA1, 0xE7, 0xA1, 0xE8, 0xA1, 0xE6, 0xA1, 0xE9, /* 0x90-0x93 */
+	0xA1, 0xEA, 0xA2, 0xD5, 0xA2, 0xD8, 0xA2, 0xD6, /* 0x94-0x97 */
+	0xA2, 0xD9, 0xA2, 0xD7, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0xA2, 0xA1, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xA2, 0xA2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+};
+
+static unsigned char u2c_22[512] = {
+	0xA2, 0xA3, 0x00, 0x00, 0xA1, 0xD3, 0xA2, 0xA4, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA1, 0xD4, /* 0x04-0x07 */
+	0xA1, 0xF4, 0x00, 0x00, 0x00, 0x00, 0xA1, 0xF5, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA2, 0xB3, /* 0x0C-0x0F */
+	0x00, 0x00, 0xA2, 0xB2, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0xA1, 0xEE, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0xA1, 0xF0, 0xA1, 0xC4, 0x00, 0x00, /* 0x1C-0x1F */
+	0xA1, 0xD0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0xA1, 0xAB, 0x00, 0x00, 0xA1, 0xFC, /* 0x24-0x27 */
+	0xA1, 0xFD, 0xA1, 0xFB, 0xA1, 0xFA, 0xA1, 0xF2, /* 0x28-0x2B */
+	0xA1, 0xF3, 0x00, 0x00, 0xA2, 0xB1, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0xA1, 0xC5, 0xA1, 0xF1, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0xA1, 0xAD, 0xA1, 0xEF, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0xA1, 0xD6, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0xA1, 0xC1, 0xA1, 0xD5, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0xA1, 0xC2, 0xA1, 0xC3, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0xA1, 0xEC, 0xA1, 0xED, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0xA1, 0xF8, 0xA1, 0xF9, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0xA1, 0xF6, 0xA1, 0xF7, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0xA2, 0xC1, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xA1, 0xD1, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+};
+
+static unsigned char u2c_23[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0xA1, 0xD2, 0x00, 0x00, /* 0x10-0x13 */
+};
+
+static unsigned char u2c_24[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0xA8, 0xE7, 0xA8, 0xE8, 0xA8, 0xE9, 0xA8, 0xEA, /* 0x60-0x63 */
+	0xA8, 0xEB, 0xA8, 0xEC, 0xA8, 0xED, 0xA8, 0xEE, /* 0x64-0x67 */
+	0xA8, 0xEF, 0xA8, 0xF0, 0xA8, 0xF1, 0xA8, 0xF2, /* 0x68-0x6B */
+	0xA8, 0xF3, 0xA8, 0xF4, 0xA8, 0xF5, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0xA9, 0xE7, 0xA9, 0xE8, 0xA9, 0xE9, 0xA9, 0xEA, /* 0x74-0x77 */
+	0xA9, 0xEB, 0xA9, 0xEC, 0xA9, 0xED, 0xA9, 0xEE, /* 0x78-0x7B */
+	0xA9, 0xEF, 0xA9, 0xF0, 0xA9, 0xF1, 0xA9, 0xF2, /* 0x7C-0x7F */
+	
+	0xA9, 0xF3, 0xA9, 0xF4, 0xA9, 0xF5, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0xA9, 0xCD, 0xA9, 0xCE, 0xA9, 0xCF, 0xA9, 0xD0, /* 0x9C-0x9F */
+	0xA9, 0xD1, 0xA9, 0xD2, 0xA9, 0xD3, 0xA9, 0xD4, /* 0xA0-0xA3 */
+	0xA9, 0xD5, 0xA9, 0xD6, 0xA9, 0xD7, 0xA9, 0xD8, /* 0xA4-0xA7 */
+	0xA9, 0xD9, 0xA9, 0xDA, 0xA9, 0xDB, 0xA9, 0xDC, /* 0xA8-0xAB */
+	0xA9, 0xDD, 0xA9, 0xDE, 0xA9, 0xDF, 0xA9, 0xE0, /* 0xAC-0xAF */
+	0xA9, 0xE1, 0xA9, 0xE2, 0xA9, 0xE3, 0xA9, 0xE4, /* 0xB0-0xB3 */
+	0xA9, 0xE5, 0xA9, 0xE6, 0xA8, 0xCD, 0xA8, 0xCE, /* 0xB4-0xB7 */
+	0xA8, 0xCF, 0xA8, 0xD0, 0xA8, 0xD1, 0xA8, 0xD2, /* 0xB8-0xBB */
+	0xA8, 0xD3, 0xA8, 0xD4, 0xA8, 0xD5, 0xA8, 0xD6, /* 0xBC-0xBF */
+	0xA8, 0xD7, 0xA8, 0xD8, 0xA8, 0xD9, 0xA8, 0xDA, /* 0xC0-0xC3 */
+	0xA8, 0xDB, 0xA8, 0xDC, 0xA8, 0xDD, 0xA8, 0xDE, /* 0xC4-0xC7 */
+	0xA8, 0xDF, 0xA8, 0xE0, 0xA8, 0xE1, 0xA8, 0xE2, /* 0xC8-0xCB */
+	0xA8, 0xE3, 0xA8, 0xE4, 0xA8, 0xE5, 0xA8, 0xE6, /* 0xCC-0xCF */
+	0xA8, 0xCD, 0xA8, 0xCE, 0xA8, 0xCF, 0xA8, 0xD0, /* 0xD0-0xD3 */
+	0xA8, 0xD1, 0xA8, 0xD2, 0xA8, 0xD3, 0xA8, 0xD4, /* 0xD4-0xD7 */
+	0xA8, 0xD5, 0xA8, 0xD6, 0xA8, 0xD7, 0xA8, 0xD8, /* 0xD8-0xDB */
+	0xA8, 0xD9, 0xA8, 0xDA, 0xA8, 0xDB, 0xA8, 0xDC, /* 0xDC-0xDF */
+	0xA8, 0xDD, 0xA8, 0xDE, 0xA8, 0xDF, 0xA8, 0xE0, /* 0xE0-0xE3 */
+	0xA8, 0xE1, 0xA8, 0xE2, 0xA8, 0xE3, 0xA8, 0xE4, /* 0xE4-0xE7 */
+	0xA8, 0xE5, 0xA8, 0xE6, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+};
+
+static unsigned char u2c_25[512] = {
+	0xA6, 0xA1, 0xA6, 0xAC, 0xA6, 0xA2, 0xA6, 0xAD, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0xA6, 0xA3, 0xA6, 0xC8, 0xA6, 0xC7, 0xA6, 0xAE, /* 0x0C-0x0F */
+	0xA6, 0xA4, 0xA6, 0xC2, 0xA6, 0xC1, 0xA6, 0xAF, /* 0x10-0x13 */
+	0xA6, 0xA6, 0xA6, 0xC6, 0xA6, 0xC5, 0xA6, 0xB1, /* 0x14-0x17 */
+	0xA6, 0xA5, 0xA6, 0xC4, 0xA6, 0xC3, 0xA6, 0xB0, /* 0x18-0x1B */
+	0xA6, 0xA7, 0xA6, 0xBC, 0xA6, 0xC9, 0xA6, 0xCA, /* 0x1C-0x1F */
+	0xA6, 0xB7, 0xA6, 0xCB, 0xA6, 0xCC, 0xA6, 0xB2, /* 0x20-0x23 */
+	0xA6, 0xA9, 0xA6, 0xBE, 0xA6, 0xCD, 0xA6, 0xCE, /* 0x24-0x27 */
+	0xA6, 0xB9, 0xA6, 0xCF, 0xA6, 0xD0, 0xA6, 0xB4, /* 0x28-0x2B */
+	0xA6, 0xA8, 0xA6, 0xD1, 0xA6, 0xD2, 0xA6, 0xB8, /* 0x2C-0x2F */
+	0xA6, 0xBD, 0xA6, 0xD3, 0xA6, 0xD4, 0xA6, 0xB3, /* 0x30-0x33 */
+	0xA6, 0xAA, 0xA6, 0xD5, 0xA6, 0xD6, 0xA6, 0xBA, /* 0x34-0x37 */
+	0xA6, 0xBF, 0xA6, 0xD7, 0xA6, 0xD8, 0xA6, 0xB5, /* 0x38-0x3B */
+	0xA6, 0xAB, 0xA6, 0xD9, 0xA6, 0xDA, 0xA6, 0xBB, /* 0x3C-0x3F */
+	0xA6, 0xDB, 0xA6, 0xDC, 0xA6, 0xC0, 0xA6, 0xDD, /* 0x40-0x43 */
+	0xA6, 0xDE, 0xA6, 0xDF, 0xA6, 0xE0, 0xA6, 0xE1, /* 0x44-0x47 */
+	0xA6, 0xE2, 0xA6, 0xE3, 0xA6, 0xE4, 0xA6, 0xB6, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0xA2, 0xC6, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0xA1, 0xE1, 0xA1, 0xE0, 0x00, 0x00, 0xA2, 0xC3, /* 0xA0-0xA3 */
+	0xA2, 0xC7, 0xA2, 0xC8, 0xA2, 0xCB, 0xA2, 0xCA, /* 0xA4-0xA7 */
+	0xA2, 0xC9, 0xA2, 0xCC, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0xA1, 0xE3, 0xA1, 0xE2, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0xA2, 0xBA, 0xA2, 0xB9, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0xA1, 0xE5, 0xA1, 0xE4, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0xA2, 0xB8, 0xA2, 0xB7, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0xA1, 0xDF, 0xA1, 0xDE, /* 0xC4-0xC7 */
+	0xA2, 0xC2, 0x00, 0x00, 0x00, 0x00, 0xA1, 0xDB, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0xA1, 0xDD, 0xA1, 0xDC, /* 0xCC-0xCF */
+	0xA2, 0xC4, 0xA2, 0xC5, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+};
+
+static unsigned char u2c_26[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0xA1, 0xDA, 0xA1, 0xD9, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0xA2, 0xCF, 0xA2, 0xCE, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0xA2, 0xD0, 0x00, 0x00, 0xA2, 0xD1, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0xA1, 0xCF, 0x00, 0x00, 0xA1, 0xCE, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0xA2, 0xBC, 0xA2, 0xBD, 0x00, 0x00, 0xA2, 0xC0, /* 0x60-0x63 */
+	0xA2, 0xBB, 0xA2, 0xBE, 0x00, 0x00, 0xA2, 0xBF, /* 0x64-0x67 */
+	0xA2, 0xCD, 0xA2, 0xDB, 0xA2, 0xDC, 0x00, 0x00, /* 0x68-0x6B */
+	0xA2, 0xDD, 0xA2, 0xDA, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+};
+
+static unsigned char u2c_30[512] = {
+	0xA1, 0xA1, 0xA1, 0xA2, 0xA1, 0xA3, 0xA1, 0xA8, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0xA1, 0xB4, 0xA1, 0xB5, 0xA1, 0xB6, 0xA1, 0xB7, /* 0x08-0x0B */
+	0xA1, 0xB8, 0xA1, 0xB9, 0xA1, 0xBA, 0xA1, 0xBB, /* 0x0C-0x0F */
+	0xA1, 0xBC, 0xA1, 0xBD, 0x00, 0x00, 0xA1, 0xEB, /* 0x10-0x13 */
+	0xA1, 0xB2, 0xA1, 0xB3, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0xAA, 0xA1, 0xAA, 0xA2, 0xAA, 0xA3, /* 0x40-0x43 */
+	0xAA, 0xA4, 0xAA, 0xA5, 0xAA, 0xA6, 0xAA, 0xA7, /* 0x44-0x47 */
+	0xAA, 0xA8, 0xAA, 0xA9, 0xAA, 0xAA, 0xAA, 0xAB, /* 0x48-0x4B */
+	0xAA, 0xAC, 0xAA, 0xAD, 0xAA, 0xAE, 0xAA, 0xAF, /* 0x4C-0x4F */
+	0xAA, 0xB0, 0xAA, 0xB1, 0xAA, 0xB2, 0xAA, 0xB3, /* 0x50-0x53 */
+	0xAA, 0xB4, 0xAA, 0xB5, 0xAA, 0xB6, 0xAA, 0xB7, /* 0x54-0x57 */
+	0xAA, 0xB8, 0xAA, 0xB9, 0xAA, 0xBA, 0xAA, 0xBB, /* 0x58-0x5B */
+	0xAA, 0xBC, 0xAA, 0xBD, 0xAA, 0xBE, 0xAA, 0xBF, /* 0x5C-0x5F */
+	0xAA, 0xC0, 0xAA, 0xC1, 0xAA, 0xC2, 0xAA, 0xC3, /* 0x60-0x63 */
+	0xAA, 0xC4, 0xAA, 0xC5, 0xAA, 0xC6, 0xAA, 0xC7, /* 0x64-0x67 */
+	0xAA, 0xC8, 0xAA, 0xC9, 0xAA, 0xCA, 0xAA, 0xCB, /* 0x68-0x6B */
+	0xAA, 0xCC, 0xAA, 0xCD, 0xAA, 0xCE, 0xAA, 0xCF, /* 0x6C-0x6F */
+	0xAA, 0xD0, 0xAA, 0xD1, 0xAA, 0xD2, 0xAA, 0xD3, /* 0x70-0x73 */
+	0xAA, 0xD4, 0xAA, 0xD5, 0xAA, 0xD6, 0xAA, 0xD7, /* 0x74-0x77 */
+	0xAA, 0xD8, 0xAA, 0xD9, 0xAA, 0xDA, 0xAA, 0xDB, /* 0x78-0x7B */
+	0xAA, 0xDC, 0xAA, 0xDD, 0xAA, 0xDE, 0xAA, 0xDF, /* 0x7C-0x7F */
+	
+	0xAA, 0xE0, 0xAA, 0xE1, 0xAA, 0xE2, 0xAA, 0xE3, /* 0x80-0x83 */
+	0xAA, 0xE4, 0xAA, 0xE5, 0xAA, 0xE6, 0xAA, 0xE7, /* 0x84-0x87 */
+	0xAA, 0xE8, 0xAA, 0xE9, 0xAA, 0xEA, 0xAA, 0xEB, /* 0x88-0x8B */
+	0xAA, 0xEC, 0xAA, 0xED, 0xAA, 0xEE, 0xAA, 0xEF, /* 0x8C-0x8F */
+	0xAA, 0xF0, 0xAA, 0xF1, 0xAA, 0xF2, 0xAA, 0xF3, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0xAB, 0xA1, 0xAB, 0xA2, 0xAB, 0xA3, /* 0xA0-0xA3 */
+	0xAB, 0xA4, 0xAB, 0xA5, 0xAB, 0xA6, 0xAB, 0xA7, /* 0xA4-0xA7 */
+	0xAB, 0xA8, 0xAB, 0xA9, 0xAB, 0xAA, 0xAB, 0xAB, /* 0xA8-0xAB */
+	0xAB, 0xAC, 0xAB, 0xAD, 0xAB, 0xAE, 0xAB, 0xAF, /* 0xAC-0xAF */
+	0xAB, 0xB0, 0xAB, 0xB1, 0xAB, 0xB2, 0xAB, 0xB3, /* 0xB0-0xB3 */
+	0xAB, 0xB4, 0xAB, 0xB5, 0xAB, 0xB6, 0xAB, 0xB7, /* 0xB4-0xB7 */
+	0xAB, 0xB8, 0xAB, 0xB9, 0xAB, 0xBA, 0xAB, 0xBB, /* 0xB8-0xBB */
+	0xAB, 0xBC, 0xAB, 0xBD, 0xAB, 0xBE, 0xAB, 0xBF, /* 0xBC-0xBF */
+	0xAB, 0xC0, 0xAB, 0xC1, 0xAB, 0xC2, 0xAB, 0xC3, /* 0xC0-0xC3 */
+	0xAB, 0xC4, 0xAB, 0xC5, 0xAB, 0xC6, 0xAB, 0xC7, /* 0xC4-0xC7 */
+	0xAB, 0xC8, 0xAB, 0xC9, 0xAB, 0xCA, 0xAB, 0xCB, /* 0xC8-0xCB */
+	0xAB, 0xCC, 0xAB, 0xCD, 0xAB, 0xCE, 0xAB, 0xCF, /* 0xCC-0xCF */
+	0xAB, 0xD0, 0xAB, 0xD1, 0xAB, 0xD2, 0xAB, 0xD3, /* 0xD0-0xD3 */
+	0xAB, 0xD4, 0xAB, 0xD5, 0xAB, 0xD6, 0xAB, 0xD7, /* 0xD4-0xD7 */
+	0xAB, 0xD8, 0xAB, 0xD9, 0xAB, 0xDA, 0xAB, 0xDB, /* 0xD8-0xDB */
+	0xAB, 0xDC, 0xAB, 0xDD, 0xAB, 0xDE, 0xAB, 0xDF, /* 0xDC-0xDF */
+	0xAB, 0xE0, 0xAB, 0xE1, 0xAB, 0xE2, 0xAB, 0xE3, /* 0xE0-0xE3 */
+	0xAB, 0xE4, 0xAB, 0xE5, 0xAB, 0xE6, 0xAB, 0xE7, /* 0xE4-0xE7 */
+	0xAB, 0xE8, 0xAB, 0xE9, 0xAB, 0xEA, 0xAB, 0xEB, /* 0xE8-0xEB */
+	0xAB, 0xEC, 0xAB, 0xED, 0xAB, 0xEE, 0xAB, 0xEF, /* 0xEC-0xEF */
+	0xAB, 0xF0, 0xAB, 0xF1, 0xAB, 0xF2, 0xAB, 0xF3, /* 0xF0-0xF3 */
+	0xAB, 0xF4, 0xAB, 0xF5, 0xAB, 0xF6, 0x00, 0x00, /* 0xF4-0xF7 */
+};
+
+static unsigned char u2c_31[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0xA4, 0xA1, 0xA4, 0xA2, 0xA4, 0xA3, /* 0x30-0x33 */
+	0xA4, 0xA4, 0xA4, 0xA5, 0xA4, 0xA6, 0xA4, 0xA7, /* 0x34-0x37 */
+	0xA4, 0xA8, 0xA4, 0xA9, 0xA4, 0xAA, 0xA4, 0xAB, /* 0x38-0x3B */
+	0xA4, 0xAC, 0xA4, 0xAD, 0xA4, 0xAE, 0xA4, 0xAF, /* 0x3C-0x3F */
+	0xA4, 0xB0, 0xA4, 0xB1, 0xA4, 0xB2, 0xA4, 0xB3, /* 0x40-0x43 */
+	0xA4, 0xB4, 0xA4, 0xB5, 0xA4, 0xB6, 0xA4, 0xB7, /* 0x44-0x47 */
+	0xA4, 0xB8, 0xA4, 0xB9, 0xA4, 0xBA, 0xA4, 0xBB, /* 0x48-0x4B */
+	0xA4, 0xBC, 0xA4, 0xBD, 0xA4, 0xBE, 0xA4, 0xBF, /* 0x4C-0x4F */
+	0xA4, 0xC0, 0xA4, 0xC1, 0xA4, 0xC2, 0xA4, 0xC3, /* 0x50-0x53 */
+	0xA4, 0xC4, 0xA4, 0xC5, 0xA4, 0xC6, 0xA4, 0xC7, /* 0x54-0x57 */
+	0xA4, 0xC8, 0xA4, 0xC9, 0xA4, 0xCA, 0xA4, 0xCB, /* 0x58-0x5B */
+	0xA4, 0xCC, 0xA4, 0xCD, 0xA4, 0xCE, 0xA4, 0xCF, /* 0x5C-0x5F */
+	0xA4, 0xD0, 0xA4, 0xD1, 0xA4, 0xD2, 0xA4, 0xD3, /* 0x60-0x63 */
+	0xA4, 0xD4, 0xA4, 0xD5, 0xA4, 0xD6, 0xA4, 0xD7, /* 0x64-0x67 */
+	0xA4, 0xD8, 0xA4, 0xD9, 0xA4, 0xDA, 0xA4, 0xDB, /* 0x68-0x6B */
+	0xA4, 0xDC, 0xA4, 0xDD, 0xA4, 0xDE, 0xA4, 0xDF, /* 0x6C-0x6F */
+	0xA4, 0xE0, 0xA4, 0xE1, 0xA4, 0xE2, 0xA4, 0xE3, /* 0x70-0x73 */
+	0xA4, 0xE4, 0xA4, 0xE5, 0xA4, 0xE6, 0xA4, 0xE7, /* 0x74-0x77 */
+	0xA4, 0xE8, 0xA4, 0xE9, 0xA4, 0xEA, 0xA4, 0xEB, /* 0x78-0x7B */
+	0xA4, 0xEC, 0xA4, 0xED, 0xA4, 0xEE, 0xA4, 0xEF, /* 0x7C-0x7F */
+	
+	0xA4, 0xF0, 0xA4, 0xF1, 0xA4, 0xF2, 0xA4, 0xF3, /* 0x80-0x83 */
+	0xA4, 0xF4, 0xA4, 0xF5, 0xA4, 0xF6, 0xA4, 0xF7, /* 0x84-0x87 */
+	0xA4, 0xF8, 0xA4, 0xF9, 0xA4, 0xFA, 0xA4, 0xFB, /* 0x88-0x8B */
+	0xA4, 0xFC, 0xA4, 0xFD, 0xA4, 0xFE, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0xEC, 0xE9, 0xEC, 0xA3, /* 0x90-0x93 */
+	0xDF, 0xB2, 0xDE, 0xCC, 0xDF, 0xBE, 0xF1, 0xE9, /* 0x94-0x97 */
+	0xF9, 0xBB, 0xCB, 0xA3, 0xEB, 0xE0, 0xDC, 0xB0, /* 0x98-0x9B */
+	0xEF, 0xCB, 0xF4, 0xB8, 0xF2, 0xA2, 0xEC, 0xD1, /* 0x9C-0x9F */
+};
+
+static unsigned char u2c_32[512] = {
+	0xA9, 0xB1, 0xA9, 0xB2, 0xA9, 0xB3, 0xA9, 0xB4, /* 0x00-0x03 */
+	0xA9, 0xB5, 0xA9, 0xB6, 0xA9, 0xB7, 0xA9, 0xB8, /* 0x04-0x07 */
+	0xA9, 0xB9, 0xA9, 0xBA, 0xA9, 0xBB, 0xA9, 0xBC, /* 0x08-0x0B */
+	0xA9, 0xBD, 0xA9, 0xBE, 0xA9, 0xBF, 0xA9, 0xC0, /* 0x0C-0x0F */
+	0xA9, 0xC1, 0xA9, 0xC2, 0xA9, 0xC3, 0xA9, 0xC4, /* 0x10-0x13 */
+	0xA9, 0xC5, 0xA9, 0xC6, 0xA9, 0xC7, 0xA9, 0xC8, /* 0x14-0x17 */
+	0xA9, 0xC9, 0xA9, 0xCA, 0xA9, 0xCB, 0xA9, 0xCC, /* 0x18-0x1B */
+	0xA2, 0xDF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0xEC, 0xE9, 0xEC, 0xA3, 0xDF, 0xB2, 0xDE, 0xCC, /* 0x20-0x23 */
+	0xE7, 0xE9, 0xD7, 0xBF, 0xF6, 0xD2, 0xF8, 0xA2, /* 0x24-0x27 */
+	0xCE, 0xFA, 0xE4, 0xA8, 0xEA, 0xC5, 0xFB, 0xFD, /* 0x28-0x2B */
+	0xE2, 0xA9, 0xD9, 0xCA, 0xD1, 0xD1, 0xF7, 0xCF, /* 0x2C-0x2F */
+	0xEC, 0xED, 0xF1, 0xBB, 0xEA, 0xF3, 0xDE, 0xE4, /* 0x30-0x33 */
+	0xD9, 0xA3, 0xF7, 0xE5, 0xEE, 0xAF, 0xF5, 0xE6, /* 0x34-0x37 */
+	0xD6, 0xCC, 0xD3, 0xDB, 0xFB, 0xBC, 0xF9, 0xCA, /* 0x38-0x3B */
+	0xCA, 0xF8, 0xD0, 0xEA, 0xED, 0xC0, 0xFA, 0xF0, /* 0x3C-0x3F */
+	0xF0, 0xAE, 0xFD, 0xCC, 0xED, 0xBB, 0xF2, 0xB8, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0xA8, 0xB1, 0xA8, 0xB2, 0xA8, 0xB3, 0xA8, 0xB4, /* 0x60-0x63 */
+	0xA8, 0xB5, 0xA8, 0xB6, 0xA8, 0xB7, 0xA8, 0xB8, /* 0x64-0x67 */
+	0xA8, 0xB9, 0xA8, 0xBA, 0xA8, 0xBB, 0xA8, 0xBC, /* 0x68-0x6B */
+	0xA8, 0xBD, 0xA8, 0xBE, 0xA8, 0xBF, 0xA8, 0xC0, /* 0x6C-0x6F */
+	0xA8, 0xC1, 0xA8, 0xC2, 0xA8, 0xC3, 0xA8, 0xC4, /* 0x70-0x73 */
+	0xA8, 0xC5, 0xA8, 0xC6, 0xA8, 0xC7, 0xA8, 0xC8, /* 0x74-0x77 */
+	0xA8, 0xC9, 0xA8, 0xCA, 0xA8, 0xCB, 0xA8, 0xCC, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA2, 0xDE, /* 0x7C-0x7F */
+	
+	0xEC, 0xE9, 0xEC, 0xA3, 0xDF, 0xB2, 0xDE, 0xCC, /* 0x80-0x83 */
+	0xE7, 0xE9, 0xD7, 0xBF, 0xF6, 0xD2, 0xF8, 0xA2, /* 0x84-0x87 */
+	0xCE, 0xFA, 0xE4, 0xA8, 0xEA, 0xC5, 0xFB, 0xFD, /* 0x88-0x8B */
+	0xE2, 0xA9, 0xD9, 0xCA, 0xD1, 0xD1, 0xF7, 0xCF, /* 0x8C-0x8F */
+	0xEC, 0xED, 0xF1, 0xBB, 0xEA, 0xF3, 0xDE, 0xE4, /* 0x90-0x93 */
+	0xD9, 0xA3, 0xF7, 0xE5, 0xEE, 0xAF, 0xF5, 0xE6, /* 0x94-0x97 */
+	0xD6, 0xCC, 0xDD, 0xFA, 0xD1, 0xFB, 0xD2, 0xB3, /* 0x98-0x9B */
+	0xEE, 0xEA, 0xE9, 0xD0, 0xEC, 0xD4, 0xF1, 0xBC, /* 0x9C-0x9F */
+	0xFA, 0xA3, 0xFD, 0xCC, 0xDE, 0xD0, 0xEF, 0xE1, /* 0xA0-0xA3 */
+	0xDF, 0xBE, 0xF1, 0xE9, 0xF9, 0xBB, 0xF1, 0xA7, /* 0xA4-0xA7 */
+	0xE9, 0xD3, 0xEC, 0xA2, 0xF0, 0xF3, 0xF9, 0xCA, /* 0xA8-0xAB */
+	0xCA, 0xF8, 0xD0, 0xEA, 0xED, 0xC0, 0xFA, 0xF0, /* 0xAC-0xAF */
+	0xE5, 0xA8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+};
+
+static unsigned char u2c_33[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xA7, 0xC9, 0xA7, 0xCA, 0xA7, 0xCB, 0xA7, 0xCC, /* 0x80-0x83 */
+	0xA7, 0xCD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0xA7, 0xBA, 0xA7, 0xBB, 0xA7, 0xDC, 0xA7, 0xDD, /* 0x88-0x8B */
+	0xA7, 0xDE, 0xA7, 0xB6, 0xA7, 0xB7, 0xA7, 0xB8, /* 0x8C-0x8F */
+	0xA7, 0xD4, 0xA7, 0xD5, 0xA7, 0xD6, 0xA7, 0xD7, /* 0x90-0x93 */
+	0xA7, 0xD8, 0xA7, 0xA1, 0xA7, 0xA2, 0xA7, 0xA3, /* 0x94-0x97 */
+	0xA7, 0xA5, 0xA7, 0xAB, 0xA7, 0xAC, 0xA7, 0xAD, /* 0x98-0x9B */
+	0xA7, 0xAE, 0xA7, 0xAF, 0xA7, 0xB0, 0xA7, 0xB1, /* 0x9C-0x9F */
+	0xA7, 0xB2, 0xA7, 0xB3, 0xA7, 0xB4, 0xA7, 0xA7, /* 0xA0-0xA3 */
+	0xA7, 0xA8, 0xA7, 0xA9, 0xA7, 0xAA, 0xA7, 0xBD, /* 0xA4-0xA7 */
+	0xA7, 0xBE, 0xA7, 0xE5, 0xA7, 0xE6, 0xA7, 0xE7, /* 0xA8-0xAB */
+	0xA7, 0xE8, 0xA7, 0xE1, 0xA7, 0xE2, 0xA7, 0xE3, /* 0xAC-0xAF */
+	0xA7, 0xBF, 0xA7, 0xC0, 0xA7, 0xC1, 0xA7, 0xC2, /* 0xB0-0xB3 */
+	0xA7, 0xC3, 0xA7, 0xC4, 0xA7, 0xC5, 0xA7, 0xC6, /* 0xB4-0xB7 */
+	0xA7, 0xC7, 0xA7, 0xC8, 0xA7, 0xCE, 0xA7, 0xCF, /* 0xB8-0xBB */
+	0xA7, 0xD0, 0xA7, 0xD1, 0xA7, 0xD2, 0xA7, 0xD3, /* 0xBC-0xBF */
+	0xA7, 0xDA, 0xA7, 0xDB, 0xA2, 0xE3, 0xA7, 0xEC, /* 0xC0-0xC3 */
+	0xA7, 0xA6, 0xA7, 0xE0, 0xA7, 0xEF, 0xA2, 0xE1, /* 0xC4-0xC7 */
+	0xA7, 0xBC, 0xA7, 0xED, 0xA7, 0xB5, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA7, 0xB9, /* 0xCC-0xCF */
+	0xA7, 0xEA, 0x00, 0x00, 0x00, 0x00, 0xA7, 0xEB, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0xA7, 0xDF, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xA2, 0xE4, 0x00, 0x00, 0x00, 0x00, 0xA7, 0xE4, /* 0xD8-0xDB */
+	0xA7, 0xEE, 0xA7, 0xE9, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+};
+
+static unsigned char u2c_4E[512] = {
+	0xEC, 0xE9, 0xEF, 0xCB, 0x00, 0x00, 0xF6, 0xD2, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD8, 0xB2, /* 0x04-0x07 */
+	0xED, 0xDB, 0xDF, 0xB2, 0xDF, 0xBE, 0xF9, 0xBB, /* 0x08-0x0B */
+	0x00, 0x00, 0xDC, 0xF4, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0xF5, 0xE4, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0xF3, 0xA6, 0xDD, 0xE0, 0xE1, 0xA6, 0x00, 0x00, /* 0x14-0x17 */
+	0xCE, 0xF8, 0xDC, 0xB0, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0xAA, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0xF1, 0xE9, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0xCD, 0xFA, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0xFC, 0xAF, 0xD3, 0xA1, 0x00, 0x00, 0xF1, 0xAB, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0xD1, 0xD2, 0xAC, /* 0x40-0x43 */
+	0x00, 0x00, 0xCE, 0xF9, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF1, 0xFD, /* 0x48-0x4B */
+	0x00, 0x00, 0xDE, 0xBF, 0xFB, 0xBA, 0xF9, 0xB9, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0xCE, 0xD2, 0x00, 0x00, /* 0x54-0x57 */
+	0xE3, 0xAB, 0xEB, 0xE0, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0xCE, 0xFA, 0xCB, 0xF7, 0xE5, 0xA5, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCA, 0xE1, /* 0x68-0x6B */
+	0x00, 0x00, 0xD4, 0xCC, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEA, 0xE1, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0xDC, 0xE3, 0xDF, 0xAD, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0xCB, 0xEB, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0xD5, 0xAF, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0xD6, 0xF5, 0x00, 0x00, /* 0x84-0x87 */
+	0xE5, 0xF8, 0x00, 0x00, 0x00, 0x00, 0xDE, 0xC0, /* 0x88-0x8B */
+	0xEC, 0xA3, 0x00, 0x00, 0xE9, 0xCD, 0x00, 0x00, /* 0x8C-0x8F */
+	0xEA, 0xA7, 0xE9, 0xF6, 0xFB, 0xBB, 0x00, 0x00, /* 0x90-0x93 */
+	0xE7, 0xE9, 0xEF, 0xCC, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0xD0, 0xE6, 0x00, 0x00, 0x00, 0x00, 0xDE, 0xC1, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0xAC, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0xD8, 0xCC, 0xF9, 0xF1, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xCE, 0xDF, 0xFA, 0xA4, 0xE6, 0xB2, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xFA, 0xFB, 0x00, 0x00, 0x00, 0x00, 0xFA, 0xBD, /* 0xA8-0xAB */
+	0xCC, 0xC8, 0xEF, 0xCD, 0xD5, 0xD5, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0xD3, 0xA2, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0xEC, 0xD1, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0xE4, 0xA7, 0xEC, 0xD2, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xF6, 0xB1, 0x00, 0x00, 0x00, 0x00, 0xCE, 0xFB, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0xD0, 0xD1, 0xCB, 0xBF, /* 0xC8-0xCB */
+	0x00, 0x00, 0xED, 0xA4, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xED, 0xA8, 0xDE, 0xC2, 0xF6, 0xE2, 0xED, 0xDC, /* 0xD4-0xD7 */
+	0xDC, 0xF5, 0xE0, 0xB9, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0xD4, 0xCE, 0x00, 0x00, 0xF4, 0xB5, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD3, 0xDB, /* 0xE0-0xE3 */
+	0xD6, 0xB5, 0xEC, 0xA4, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0xE4, 0xE6, 0x00, 0x00, 0xF1, 0xEA, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0xCB, 0xEC, 0xCB, 0xC0, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEC, 0xF2, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_4F[512] = {
+	0x00, 0x00, 0xD0, 0xEA, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xF9, 0xF2, 0xEC, 0xA5, 0xD0, 0xDF, /* 0x08-0x0B */
+	0x00, 0x00, 0xE7, 0xEA, 0xD0, 0xEB, 0xDC, 0xD1, /* 0x0C-0x0F */
+	0xDB, 0xE9, 0xFD, 0xCC, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDB, 0xD7, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0xDA, 0xE1, 0x00, 0x00, 0xD6, 0xB6, 0x00, 0x00, /* 0x34-0x37 */
+	0xE3, 0xDF, 0x00, 0x00, 0xDE, 0xC3, 0x00, 0x00, /* 0x38-0x3B */
+	0xDE, 0xC4, 0xCA, 0xA1, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEE, 0xEC, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xD3, 0xA3, 0xEE, 0xB7, /* 0x44-0x47 */
+	0xF8, 0xCF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0xEA, 0xC8, 0xEE, 0xB8, 0xF1, 0xAC, /* 0x4C-0x4F */
+	0xF1, 0xA5, 0xE9, 0xCE, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0xF9, 0xBC, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0xE5, 0xF9, 0xEC, 0xEA, 0xDD, 0xD6, /* 0x58-0x5B */
+	0xED, 0xC2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0xF8, 0xA5, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE5, 0xBA, /* 0x6C-0x6F */
+	0xDB, 0xD8, 0x00, 0x00, 0x00, 0x00, 0xCA, 0xA2, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0xD1, 0xCD, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0xEE, 0xED, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0xEC, 0xEB, 0xDE, 0xC5, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xE3, 0xE0, 0x00, 0x00, 0xCA, 0xC9, /* 0x80-0x83 */
+	0xF2, 0xE9, 0x00, 0x00, 0xD5, 0xCE, 0x00, 0x00, /* 0x84-0x87 */
+	0xF6, 0xB6, 0x00, 0x00, 0xCE, 0xC2, 0xD6, 0xC7, /* 0x88-0x8B */
+	0x00, 0x00, 0xE3, 0xB4, 0x00, 0x00, 0xF1, 0xAD, /* 0x8C-0x8F */
+	0x00, 0x00, 0xEA, 0xE2, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0xD7, 0xC2, 0x00, 0x00, /* 0x94-0x97 */
+	0xF3, 0xA7, 0x00, 0x00, 0x00, 0x00, 0xCD, 0xEA, /* 0x98-0x9B */
+	0x00, 0x00, 0xEB, 0xEE, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0xD9, 0xB2, 0xFD, 0xA5, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xF6, 0xD5, 0xD5, 0xE2, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF8, 0xB5, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0xCC, 0xF5, 0xF5, 0xB5, /* 0xC0-0xC3 */
+	0xE4, 0xAD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xE7, 0xEB, 0xF1, 0xD5, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0xF0, 0xBB, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0xE9, 0xB5, 0x00, 0x00, 0xCC, 0xC9, /* 0xD0-0xD3 */
+	0xFA, 0xD5, 0x00, 0x00, 0x00, 0x00, 0xE1, 0xD4, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0xD7, 0xD6, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0xDC, 0xC1, 0x00, 0x00, 0xDE, 0xC6, /* 0xDC-0xDF */
+	0xFA, 0xEF, 0xE3, 0xE1, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xF3, 0xDC, 0xF6, /* 0xEC-0xEF */
+	0x00, 0x00, 0xCE, 0xFC, 0x00, 0x00, 0xDB, 0xC4, /* 0xF0-0xF3 */
+	0x00, 0x00, 0xF8, 0xF1, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xDC, 0xE4, 0x00, 0x00, 0xE5, 0xEF, 0x00, 0x00, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_50[512] = {
+	0x00, 0x00, 0x00, 0x00, 0xDC, 0xB1, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0xD5, 0xD6, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xF3, 0xDA, 0x00, 0x00, 0xCB, 0xC1, /* 0x08-0x0B */
+	0x00, 0x00, 0xDB, 0xC3, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0xD9, 0xFA, 0xD3, 0xEE, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xFA, 0xB8, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0xFD, 0xA6, 0xEB, 0xEF, 0x00, 0x00, /* 0x18-0x1B */
+	0xF4, 0xA6, 0x00, 0x00, 0xCC, 0xCA, 0xF3, 0xA8, /* 0x1C-0x1F */
+	0x00, 0x00, 0xF3, 0xDB, 0x00, 0x00, 0xDB, 0xA7, /* 0x20-0x23 */
+	0xF6, 0xB7, 0x00, 0x00, 0xCF, 0xE6, 0xF0, 0xF2, /* 0x24-0x27 */
+	0xCB, 0xDA, 0x00, 0x00, 0xE7, 0xD2, 0xD7, 0xC3, /* 0x28-0x2B */
+	0xF6, 0xF0, 0xE8, 0xDE, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE5, 0xA6, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE5, 0xE7, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCA, 0xA3, /* 0x44-0x47 */
+	0xCC, 0xA7, 0xEA, 0xC9, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF8, 0xB6, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0xFA, 0xA5, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0xF1, 0xAE, 0x00, 0x00, /* 0x58-0x5B */
+	0xEF, 0xCE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0xCB, 0xED, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0xF6, 0xB0, 0xEF, 0xCF, 0xE9, 0xCF, 0x00, 0x00, /* 0x74-0x77 */
+	0xF7, 0xDE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xCE, 0xD3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0xDC, 0xF7, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0xDB, 0xA8, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0xCB, 0xF8, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0xDF, 0xA1, 0xDD, 0xE1, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0xF5, 0xCA, 0xE9, 0xB6, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0xEC, 0xEE, 0xEE, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xF3, 0xF0, 0x00, 0x00, 0xDF, 0xBF, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0xCC, 0xCB, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xD0, 0xC1, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xF4, 0xD2, 0xE0, 0xBA, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDF, 0xC0, /* 0xCC-0xCF */
+	0x00, 0x00, 0xCE, 0xE0, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xDC, 0xD2, 0xFD, 0xEA, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0xD6, 0xF6, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0xEA, 0xCA, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xE8, 0xE9, 0x00, 0x00, 0xE3, 0xAC, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0xF3, 0xD0, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xCA, 0xA4, 0x00, 0x00, 0xDB, 0xF8, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDE, 0xC7, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_51[512] = {
+	0xEB, 0xF0, 0xF1, 0xD6, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0xE5, 0xE2, 0x00, 0x00, 0xCC, 0xCC, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xCB, 0xFB, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0xEA, 0xE3, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDF, 0xC1, /* 0x1C-0x1F */
+	0x00, 0x00, 0xD6, 0xED, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xD0, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0xEE, 0xB9, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD5, 0xE3, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xD1, 0xD3, 0x00, 0x00, /* 0x38-0x3B */
+	0xE5, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0xE8, 0xB4, 0xEB, 0xC3, 0x00, 0x00, 0xEA, 0xAA, /* 0x40-0x43 */
+	0xFA, 0xFC, 0xF5, 0xF6, 0xF0, 0xBC, 0xFD, 0xD4, /* 0x44-0x47 */
+	0xE0, 0xBB, 0xCE, 0xC3, 0x00, 0x00, 0xD0, 0xBA, /* 0x48-0x4B */
+	0xF7, 0xBA, 0xD8, 0xF3, 0xF7, 0xCD, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0xAE, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0xD4, 0xDF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0xD0, 0xE7, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0xEC, 0xFD, 0x00, 0x00, 0xD2, 0xAE, /* 0x64-0x67 */
+	0xEE, 0xEF, 0xD5, 0xD7, 0xEA, 0xE4, 0xF8, 0xA2, /* 0x68-0x6B */
+	0xCD, 0xEB, 0xD7, 0xBF, 0xFB, 0xB1, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0xCD, 0xEC, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0xDC, 0xB2, 0xD0, 0xEC, 0xCE, 0xFD, /* 0x74-0x77 */
+	0xEE, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0xCC, 0xC2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xD0, 0xED, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xF7, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0xF3, 0xFC, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0xEE, 0xA2, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0xD9, 0xB3, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0xD8, 0xF4, 0x00, 0x00, 0xE9, 0xB7, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0xCE, 0xAE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xD9, 0xA2, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0xD8, 0xF1, 0x00, 0x00, /* 0xA8-0xAB */
+	0xD4, 0xCF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xA7, 0xD5, 0xD2, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0xD6, 0xA9, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xF4, 0xA2, 0x00, 0x00, 0xF1, 0xD7, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xD5, 0xD8, 0x00, 0x00, 0xF0, 0xBD, /* 0xC8-0xCB */
+	0xD7, 0xD0, 0xD4, 0xD0, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0xD7, 0xCF, 0xEB, 0xEA, 0xFD, 0xEB, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0xDB, 0xED, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0xFC, 0xC5, 0xCB, 0xC2, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0xFD, 0xD5, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xF4, 0xC8, 0xE8, 0xEA, 0xF5, 0xF3, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0xF9, 0xDE, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_52[512] = {
+	0xD3, 0xEF, 0x00, 0x00, 0x00, 0x00, 0xEC, 0xD3, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0xDD, 0xC2, 0xEF, 0xB7, /* 0x04-0x07 */
+	0xE7, 0xD4, 0x00, 0x00, 0xCA, 0xCA, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0xD9, 0xFB, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0xFA, 0xFD, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD6, 0xAA, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0xF4, 0xF8, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0xF7, 0xF7, 0xDC, 0xAC, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0xD7, 0xD7, 0xDF, 0xA2, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0xCE, 0xBE, 0x00, 0x00, /* 0x2C-0x2F */
+	0xD3, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0xF0, 0xA4, 0xE1, 0xEC, /* 0x34-0x37 */
+	0xCF, 0xE7, 0xF3, 0xCB, 0xED, 0xA9, 0xCA, 0xBE, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF4, 0xEF, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF6, 0xCE, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0xDE, 0xFB, 0xD0, 0xBB, /* 0x48-0x4B */
+	0xD5, 0xB7, 0xEE, 0xF1, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0xF4, 0xA8, 0x00, 0x00, 0xDC, 0xF8, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCB, 0xA7, /* 0x58-0x5B */
+	0x00, 0x00, 0xDA, 0xCE, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0xE0, 0xE6, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0xED, 0xA5, 0xEE, 0xF2, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDC, 0xF9, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0xF9, 0xDC, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0xF3, 0xDC, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0xF8, 0xF2, 0x00, 0x00, 0xF4, 0xF9, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFC, 0xF1, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD0, 0xBC, /* 0x84-0x87 */
+	0xDB, 0xF9, 0xD7, 0xB1, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0xCB, 0xFC, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0xF0, 0xA5, 0xCB, 0xFD, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD5, 0xF4, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCD, 0xED, /* 0x9C-0x9F */
+	0xCA, 0xA5, 0x00, 0x00, 0x00, 0x00, 0xD6, 0xAB, /* 0xA0-0xA3 */
+	0xD0, 0xC2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0xF0, 0xBE, 0xD2, 0xBD, 0xCC, 0xA4, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0xFA, 0xB6, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0xCC, 0xCD, 0x00, 0x00, 0xDA, 0xFA, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xF6, 0xCF, 0x00, 0x00, 0xE9, 0xB8, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xD8, 0xF5, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0xCC, 0xCE, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0xD7, 0xCD, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xD4, 0xD1, 0xE9, 0xED, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xCA, 0xEB, 0xD9, 0xE2, 0x00, 0x00, 0xFD, 0xB2, /* 0xD8-0xDB */
+	0x00, 0x00, 0xE3, 0xAD, 0xD6, 0xCC, 0xD9, 0xB4, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xA7, 0xEE, 0xD3, /* 0xE0-0xE3 */
+	0xD0, 0xC3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFD, 0xB3, /* 0xF0-0xF3 */
+	0x00, 0x00, 0xD5, 0xE4, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xCF, 0xE8, 0x00, 0x00, 0xED, 0xC3, 0xD0, 0xB2, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0xCE, 0xFE, 0xDA, 0xA8, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_53[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0xF8, 0xD0, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0xFD, 0xD6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0xF8, 0xD1, 0x00, 0x00, 0xF8, 0xD2, /* 0x0C-0x0F */
+	0xDC, 0xD3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0xDD, 0xE2, 0xFB, 0xF9, 0xDD, 0xC1, /* 0x14-0x17 */
+	0x00, 0x00, 0xE3, 0xB5, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0xED, 0xDD, 0xCE, 0xC4, 0x00, 0x00, 0xCB, 0xA1, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xDD, 0xE3, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFC, 0xDD, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0xF9, 0xAF, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD2, 0xFB, /* 0x3C-0x3F */
+	0xCF, 0xA1, 0xE4, 0xA8, 0x00, 0x00, 0xF4, 0xB6, /* 0x40-0x43 */
+	0xEC, 0xFE, 0x00, 0x00, 0x00, 0x00, 0xE3, 0xAE, /* 0x44-0x47 */
+	0xE7, 0xED, 0xFD, 0xC1, 0xDA, 0xE2, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0xD8, 0xB3, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0xDD, 0xE4, 0xF0, 0xEF, 0xF6, 0xF1, /* 0x50-0x53 */
+	0xFA, 0xF0, 0x00, 0x00, 0x00, 0x00, 0xD1, 0xF5, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0xDA, 0xCF, 0x00, 0x00, /* 0x58-0x5B */
+	0xDC, 0xD4, 0x00, 0x00, 0xDC, 0xA6, 0x00, 0x00, /* 0x5C-0x5F */
+	0xEF, 0xBF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0xCE, 0xCF, 0x00, 0x00, /* 0x64-0x67 */
+	0xE0, 0xD9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD9, 0xD6, /* 0x6C-0x6F */
+	0xEC, 0xD4, 0xEA, 0xCB, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0xCA, 0xBF, 0xD5, 0xB0, 0x00, 0x00, 0xCF, 0xE9, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0xF1, 0xED, 0x00, 0x00, 0xCC, 0xCF, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0xE4, 0xF8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xED, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0xD7, 0xD8, 0x00, 0x00, 0xFD, 0xA7, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEA, 0xAB, /* 0x9C-0x9F */
+	0xF6, 0xB2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xCF, 0xF0, 0xF9, 0xBD, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0xE6, 0xF4, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCB, 0xDB, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF3, 0xD1, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0xE9, 0xD1, 0xF3, 0xA9, 0xD0, 0xE0, 0xE9, 0xD2, /* 0xC8-0xCB */
+	0x00, 0x00, 0xDA, 0xE3, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xE2, 0xD2, 0x00, 0x00, 0xF6, 0xA2, 0xE1, 0xF4, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDA, 0xE4, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0xE7, 0xD5, 0xF5, 0xBF, 0xCF, 0xA2, /* 0xE0-0xE3 */
+	0xCD, 0xAF, 0xCF, 0xA3, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0xCD, 0xB0, 0xF1, 0xFE, 0xD0, 0xA3, /* 0xE8-0xEB */
+	0xE1, 0xAF, 0xF8, 0xA3, 0x00, 0x00, 0xCA, 0xA6, /* 0xEC-0xEF */
+	0xF7, 0xBB, 0xF2, 0xEA, 0xDE, 0xC8, 0xE9, 0xD3, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xDE, 0xC9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_54[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFD, 0xDE, /* 0x00-0x03 */
+	0xCA, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0xF9, 0xEA, 0xD1, 0xCE, 0xEE, 0xD4, 0x00, 0x00, /* 0x08-0x0B */
+	0xD4, 0xD2, 0xD9, 0xA3, 0xFD, 0xA8, 0xD7, 0xD9, /* 0x0C-0x0F */
+	0xF7, 0xCE, 0xFA, 0xBE, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCF, 0xD6, /* 0x18-0x1B */
+	0x00, 0x00, 0xD7, 0xF0, 0x00, 0x00, 0xEB, 0xE1, /* 0x1C-0x1F */
+	0xF8, 0xC5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0xDC, 0xFA, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0xDD, 0xC3, 0x00, 0x00, 0xF9, 0xDF, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE7, 0xEF, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0xFD, 0xE5, 0xF6, 0xA3, 0x00, 0x00, 0xD9, 0xFC, /* 0x38-0x3B */
+	0xFD, 0xA9, 0x00, 0x00, 0xE7, 0xEE, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0xD5, 0xE5, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0xEF, 0xD0, 0x00, 0x00, 0xCD, 0xB1, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0xF7, 0xA2, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0xF1, 0xB2, 0x00, 0x00, 0xF1, 0xB1, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0xCD, 0xB2, 0x00, 0x00, 0xDA, 0xAB, /* 0x70-0x73 */
+	0x00, 0x00, 0xCA, 0xA7, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, 0xE2, /* 0x78-0x7B */
+	0xFB, 0xBC, 0xD9, 0xA4, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xEE, 0xBA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0xF8, 0xD3, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0xFB, 0xFA, 0x00, 0x00, 0xCF, 0xA4, 0x00, 0x00, /* 0x8C-0x8F */
+	0xDC, 0xFB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xF6, 0xE3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xED, 0xAA, 0x00, 0x00, 0x00, 0x00, 0xF2, 0xA1, /* 0xA8-0xAB */
+	0xCE, 0xE1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFA, 0xA6, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xF9, 0xE0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0xEC, 0xD6, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0xE4, 0xEE, 0xF9, 0xA1, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xFB, 0xEF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0xF9, 0xEB, 0xEE, 0xA3, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0xEA, 0xAC, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xCA, 0xA8, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xF4, 0xFA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0xCD, 0xD6, 0xFC, 0xF6, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0xF4, 0xC9, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0xF8, 0xD4, 0x00, 0x00, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_55[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0xF8, 0xA6, 0x00, 0x00, 0xDE, 0xCA, 0xF2, 0xC6, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0xD7, 0xDA, 0x00, 0x00, /* 0x0C-0x0F */
+	0xD3, 0xD0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0xD8, 0xC5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEA, 0xE6, /* 0x2C-0x2F */
+	0x00, 0x00, 0xF3, 0xDD, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0xE4, 0xDA, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0xF6, 0xE4, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0xF6, 0xF2, 0x00, 0x00, 0xDF, 0xC2, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD9, 0xFD, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCC, 0xF6, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0xD3, 0xBA, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0xAF, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF9, 0xE1, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0xF0, 0xA6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xCB, 0xD3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0xE0, 0xBC, 0x00, 0x00, 0xF4, 0xCA, 0xD4, 0xFA, /* 0x84-0x87 */
+	0x00, 0x00, 0xFD, 0xAA, 0xF9, 0xE2, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0xF4, 0xB7, 0xFD, 0xC2, 0xFC, 0xB0, 0x00, 0x00, /* 0x98-0x9B */
+	0xFD, 0xEC, 0xCA, 0xE2, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFD, 0xBD, /* 0xA4-0xA7 */
+	0x00, 0x00, 0xEA, 0xE7, 0xDF, 0xC3, 0xD1, 0xD2, /* 0xA8-0xAB */
+	0xCE, 0xE2, 0x00, 0x00, 0xD3, 0xA4, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xFD, 0xAB, 0x00, 0x00, 0xDF, 0xE0, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xF2, 0xC7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0xF0, 0x00, 0x00, /* 0xD8-0xDB */
+	0xD0, 0xEE, 0x00, 0x00, 0x00, 0x00, 0xF3, 0xAA, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDE, 0xCB, /* 0xE0-0xE3 */
+	0xF6, 0xB8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0xE1, 0xF5, 0xF1, 0xB3, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_56[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0xF7, 0xA3, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xCA, 0xA9, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0xCF, 0xA5, 0x00, 0x00, 0x00, 0x00, 0xDF, 0xC4, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE1, 0xB0, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0xF0, 0xBF, 0x00, 0x00, /* 0x30-0x33 */
+	0xF6, 0xA4, 0x00, 0x00, 0xE3, 0xB6, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFA, 0xC6, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0xD0, 0xEF, 0x00, 0x00, 0x00, 0x00, 0xFD, 0xED, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0xDD, 0xC4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0xFC, 0xF7, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xE6, 0xBF, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0xDE, 0xAD, 0x00, 0x00, 0xFA, 0xBF, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0xE5, 0xF1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0xED, 0xC4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0xD2, 0xA5, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0xFD, 0xEE, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0xF5, 0xB6, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xF6, 0xDE, 0xCC, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0xFC, 0xDE, 0x00, 0x00, /* 0xDC-0xDF */
+	0xEC, 0xD7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0xCD, 0xDD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xD6, 0xB7, 0xCD, 0xB3, 0x00, 0x00, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_57[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF8, 0xD5, /* 0x00-0x03 */
+	0xE5, 0xD8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0xCF, 0xEA, 0x00, 0x00, 0x00, 0x00, 0xCF, 0xD0, /* 0x08-0x0B */
+	0x00, 0x00, 0xEA, 0xCC, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0xEA, 0xAE, 0xEA, 0xAD, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xD3, 0xF1, 0x00, 0x00, /* 0x14-0x17 */
+	0xD3, 0xA5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF7, 0xCF, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0xEE, 0xA4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0xD0, 0xA4, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xF2, 0xA2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD0, 0xF0, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0xF2, 0xA3, 0x00, 0x00, 0xF7, 0xF8, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD0, 0xB3, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0xDB, 0xA9, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0xD3, 0xBB, 0xCA, 0xEC, 0x00, 0x00, /* 0x4C-0x4F */
+	0xF1, 0xA6, 0xCB, 0xD5, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0xF7, 0xE7, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0xCD, 0xDE, 0x00, 0x00, 0xF7, 0xA4, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0xF8, 0xC0, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0xD3, 0xDD, 0x00, 0x00, /* 0x6C-0x6F */
+	0xCC, 0xD0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0xCF, 0xA6, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0xF6, 0xF3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xF7, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0xD3, 0xDC, 0x00, 0x00, 0x00, 0x00, 0xFA, 0xFE, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFA, 0xA7, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0xEB, 0xD9, 0x00, 0x00, 0xCF, 0xA7, 0xEA, 0xAF, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xEF, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE9, 0xB9, /* 0xC4-0xC7 */
+	0xF1, 0xD8, 0x00, 0x00, 0x00, 0x00, 0xD8, 0xD8, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0xF2, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE6, 0xB4, /* 0xDC-0xDF */
+	0xDC, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0xF3, 0xF1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xE3, 0xD0, 0x00, 0x00, 0x00, 0x00, 0xF2, 0xFB, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xDB, 0xC6, 0xD0, 0xF1, 0x00, 0x00, /* 0xF8-0xFB */
+	0xD0, 0xF2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_58[512] = {
+	0xCF, 0xDC, 0x00, 0x00, 0xD3, 0xD1, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0xCC, 0xB1, 0xF7, 0xD8, 0x00, 0x00, /* 0x04-0x07 */
+	0xCB, 0xA8, 0xEB, 0xBC, 0xE4, 0xBE, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0xF4, 0xDC, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0xDC, 0xC2, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0xF0, 0xA7, 0x00, 0x00, 0x00, 0x00, 0xE6, 0xC0, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xCA, 0xED, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE8, 0xEB, /* 0x2C-0x2F */
+	0xE5, 0xE8, 0xDC, 0xC3, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0xED, 0xDE, 0xD3, 0xF2, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xCC, 0xF7, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0xCE, 0xD4, 0xE7, 0xAB, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCB, 0xC3, /* 0x4C-0x4F */
+	0x00, 0x00, 0xE1, 0xB1, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0xF7, 0xB2, 0x00, 0x00, 0x00, 0x00, 0xD3, 0xF3, /* 0x54-0x57 */
+	0xD3, 0xD2, 0x00, 0x00, 0xF5, 0xC0, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0xDF, 0xDD, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0xEE, 0xF3, 0xE7, 0xF1, 0x00, 0x00, /* 0x60-0x63 */
+	0xFD, 0xB4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0xF2, 0xC8, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0xF3, 0xD2, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0xEE, 0xF4, 0x00, 0x00, 0xE2, 0xD3, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCC, 0xD1, /* 0x80-0x83 */
+	0x00, 0x00, 0xDF, 0xEA, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0xE9, 0xBA, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD9, 0xD7, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0xF5, 0xCD, 0x00, 0x00, 0xF1, 0xF2, 0xFA, 0xC7, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xD9, 0xF8, 0xD4, 0xC2, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0xF6, 0xE5, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDD, 0xC5, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0xF2, 0xED, 0xDF, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0xCA, 0xCB, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0xDB, 0xFA, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xE8, 0xB5, 0x00, 0x00, 0xD3, 0xA6, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0xFD, 0xB5, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0xF9, 0xC9, 0x00, 0x00, 0xE4, 0xE2, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xFB, 0xBD, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xD7, 0xA4, 0xCE, 0xC5, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0xCE, 0xD5, 0xD6, 0xE6, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0xE5, 0xBD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDE, 0xCD, /* 0xE8-0xEB */
+	0xEC, 0xF3, 0x00, 0x00, 0x00, 0x00, 0xED, 0xE0, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xEC, 0xEC, 0xFB, 0xBE, 0xDF, 0xEB, /* 0xF8-0xFB */
+	0x00, 0x00, 0xE1, 0xF8, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_59[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF9, 0xBE, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0xD0, 0xF3, 0xE0, 0xAA, 0xE8, 0xE2, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0xE2, 0xD4, 0xD2, 0xFD, 0x00, 0x00, /* 0x18-0x1B */
+	0xE5, 0xA8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0xD9, 0xD3, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD3, 0xDE, /* 0x24-0x27 */
+	0x00, 0x00, 0xF4, 0xB8, 0xF7, 0xBC, 0xDC, 0xFD, /* 0x28-0x2B */
+	0x00, 0x00, 0xE8, 0xEC, 0xE4, 0xE7, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0xE3, 0xF7, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEC, 0xA8, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0xFA, 0xF1, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0xE5, 0xF2, 0x00, 0x00, 0x00, 0x00, 0xD0, 0xF4, /* 0x44-0x47 */
+	0xD2, 0xAF, 0xDC, 0xE5, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0xD0, 0xA5, 0xF1, 0xB4, /* 0x4C-0x4F */
+	0xFC, 0xB1, 0xCC, 0xF8, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0xDD, 0xC6, 0xFA, 0xD1, 0x00, 0x00, 0xF7, 0xDF, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0xFA, 0xA8, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0xEE, 0xF5, 0x00, 0x00, 0xDE, 0xCE, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE7, 0xF3, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0xF7, 0xAC, 0xEB, 0xC4, /* 0x68-0x6B */
+	0xED, 0xE1, 0xE0, 0xAB, 0xDD, 0xC7, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD2, 0xB3, /* 0x70-0x73 */
+	0xD2, 0xBF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0xCA, 0xCC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0xFB, 0xBF, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xFD, 0xDD, 0xE5, /* 0x80-0x83 */
+	0xD8, 0xCD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0xEC, 0xF4, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD0, 0xF5, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0xE8, 0xED, 0xD0, 0xD2, /* 0x94-0x97 */
+	0x00, 0x00, 0xD9, 0xD8, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xF6, 0xE6, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xDB, 0xAA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0xF7, 0xE0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xD8, 0xD9, 0x00, 0x00, 0xF4, 0xA3, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0xF4, 0xDD, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEF, 0xD1, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0xD9, 0xB5, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xED, 0xAB, 0x00, 0x00, 0xE3, 0xB7, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0xEE, 0xBB, 0xCD, 0xB4, 0x00, 0x00, 0xE0, 0xF3, /* 0xD0-0xD3 */
+	0xEA, 0xCD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xEC, 0xF5, 0xE8, 0xEE, 0x00, 0x00, /* 0xD8-0xDB */
+	0xCB, 0xA9, 0xF1, 0xAF, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0xCA, 0xCD, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xEC, 0xA9, 0x00, 0x00, 0xF2, 0xEB, 0x00, 0x00, /* 0xE8-0xEB */
+	0xFD, 0xEF, 0x00, 0x00, 0xF9, 0xF3, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xE6, 0xC1, 0x00, 0x00, 0x00, 0x00, 0xEC, 0xD8, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xED, 0xAC, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_5A[512] = {
+	0x00, 0x00, 0xEA, 0xCE, 0x00, 0x00, 0xE8, 0xDF, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0xDE, 0xCF, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0xD2, 0xA6, 0x00, 0x00, 0x00, 0x00, 0xE7, 0xF4, /* 0x18-0x1B */
+	0xD1, 0xD6, 0x00, 0x00, 0x00, 0x00, 0xE6, 0xC2, /* 0x1C-0x1F */
+	0xE3, 0xE3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0xE4, 0xB0, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0xD8, 0xB4, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0xF6, 0xA5, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0xF3, 0xDE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0xD7, 0xA5, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xF7, 0xE8, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0xE8, 0xC6, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0xFB, 0xE6, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0xDD, 0xE6, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0xDC, 0xFE, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0xD8, 0xDA, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0xDA, 0xAC, 0xEA, 0xB0, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xE3, 0xB8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0xCA, 0xAA, 0xE1, 0xF9, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xEA, 0xB1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xF2, 0xEC, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0xFA, 0xEE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0xEE, 0xD5, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0xF9, 0xF4, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0xD2, 0xEC, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+};
+
+static unsigned char u2c_5B[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0xFB, 0xFB, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xFD, 0xF0, 0x00, 0x00, 0xE0, 0xBD, /* 0x08-0x0B */
+	0xCE, 0xE3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xF8, 0xC6, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xDE, 0xAE, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0xDF, 0xC5, 0x00, 0x00, 0x00, 0x00, 0xE5, 0xBE, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0xED, 0xAD, 0xFA, 0xEA, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0xCD, 0xEE, 0xED, 0xA6, 0x00, 0x00, 0xED, 0xAE, /* 0x54-0x57 */
+	0xF0, 0xED, 0x00, 0x00, 0xDD, 0xA1, 0x00, 0x00, /* 0x58-0x5B */
+	0xED, 0xAF, 0xFC, 0xF8, 0x00, 0x00, 0xD8, 0xEB, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCC, 0xF9, /* 0x60-0x63 */
+	0xCD, 0xB5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0xFA, 0xA9, 0x00, 0x00, 0xE1, 0xDD, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0xE2, 0xD5, 0xED, 0xCF, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0xDD, 0xA2, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0xF9, 0xCA, 0x00, 0x00, 0xEA, 0xE8, 0x00, 0x00, /* 0x78-0x7B */
+	0xE5, 0xED, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0xD3, 0xEB, 0x00, 0x00, 0xE9, 0xD4, /* 0x84-0x87 */
+	0xE1, 0xFA, 0xE4, 0xCC, 0x00, 0x00, 0xE1, 0xE4, /* 0x88-0x8B */
+	0xE8, 0xC7, 0x00, 0x00, 0x00, 0x00, 0xCE, 0xDB, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDC, 0xD5, /* 0x90-0x93 */
+	0x00, 0x00, 0xF7, 0xB5, 0xFC, 0xF3, 0xF0, 0xF3, /* 0x94-0x97 */
+	0xCE, 0xAF, 0xF1, 0xB5, 0xEF, 0xD2, 0xE8, 0xC8, /* 0x98-0x9B */
+	0xEB, 0xF1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0xCB, 0xD4, 0xE0, 0xBE, /* 0xA0-0xA3 */
+	0xE3, 0xF8, 0xEA, 0xE9, 0xFC, 0xB2, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0xE0, 0xF4, 0x00, 0x00, 0xCF, 0xE0, 0x00, 0x00, /* 0xAC-0xAF */
+	0xEE, 0xA5, 0x00, 0x00, 0x00, 0x00, 0xFA, 0xAA, /* 0xB0-0xB3 */
+	0xE6, 0xC3, 0xE1, 0xB2, 0xCA, 0xAB, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xE3, 0xE4, 0xE9, 0xBB, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xD6, /* 0xBC-0xBF */
+	0xF3, 0xF2, 0x00, 0x00, 0xEE, 0xD6, 0xEA, 0xB2, /* 0xC0-0xC3 */
+	0xD0, 0xF6, 0xEC, 0xD9, 0xDA, 0xCB, 0xCF, 0xA8, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0xDD, 0xA3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0xD8, 0xDB, 0x00, 0x00, 0xF9, 0xCE, 0xE9, 0xD5, /* 0xD0-0xD3 */
+	0xE3, 0xD1, 0x00, 0x00, 0x00, 0x00, 0xD2, 0xBC, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0xD8, 0xAC, 0xF3, 0xCC, /* 0xDC-0xDF */
+	0x00, 0x00, 0xCD, 0xFB, 0xF6, 0xD6, 0x00, 0x00, /* 0xE0-0xE3 */
+	0xE7, 0xF5, 0xE8, 0xEF, 0xE3, 0xF9, 0xD2, 0xBB, /* 0xE4-0xE7 */
+	0xF3, 0xF3, 0xE3, 0xFB, 0x00, 0x00, 0xDE, 0xD0, /* 0xE8-0xEB */
+	0xCE, 0xB0, 0x00, 0x00, 0xD6, 0xF7, 0xF1, 0xD9, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0xF5, 0xC1, 0xDC, 0xC4, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xF5, 0xBB, 0x00, 0x00, 0xDE, 0xD1, 0x00, 0x00, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_5C[512] = {
+	0x00, 0x00, 0xDC, 0xE6, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0xDE, 0xD2, 0x00, 0x00, 0x00, 0x00, 0xED, 0xE2, /* 0x04-0x07 */
+	0xEE, 0xF6, 0xEA, 0xCF, 0xF0, 0xEE, 0xE3, 0xFC, /* 0x08-0x0B */
+	0x00, 0x00, 0xD3, 0xDF, 0xD3, 0xF4, 0xE1, 0xB3, /* 0x0C-0x0F */
+	0x00, 0x00, 0xE1, 0xB4, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xF4, 0xD3, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0xDF, 0xC6, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0xE9, 0xD6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0xDB, 0xAB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0xF6, 0xA6, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0xE3, 0xB9, 0xEB, 0xC5, 0xF4, 0xA9, 0xCD, 0xB6, /* 0x38-0x3B */
+	0xD2, 0xF9, 0x00, 0x00, 0xDA, 0xAD, 0xD2, 0xE3, /* 0x3C-0x3F */
+	0xCF, 0xD1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0xCB, 0xDC, 0xCC, 0xFA, 0x00, 0x00, /* 0x44-0x47 */
+	0xCF, 0xDD, 0x00, 0x00, 0x00, 0x00, 0xE8, 0xA9, /* 0x48-0x4B */
+	0x00, 0x00, 0xE3, 0xBB, 0xE3, 0xBA, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0xE0, 0xDA, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0xEE, 0xF7, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDC, 0xB3, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0xD3, 0xF5, 0x00, 0x00, 0xD7, 0xA6, 0x00, 0x00, /* 0x60-0x63 */
+	0xF6, 0xB5, 0xD7, 0xDB, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0xE1, 0xD5, 0x00, 0x00, 0x00, 0x00, 0xD4, 0xEA, /* 0x6C-0x6F */
+	0x00, 0x00, 0xDF, 0xA3, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0xFD, 0xDF, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0xD0, 0xF7, 0xED, 0xD4, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0xCB, 0xAA, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0xE4, 0xDB, 0x00, 0x00, 0xE1, 0xFB, /* 0xA8-0xAB */
+	0xCB, 0xA2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0xD3, 0xE0, 0x00, 0x00, 0xE4, 0xBF, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xFB, 0xC0, 0x00, 0x00, 0xDA, 0xBE, /* 0xB4-0xB7 */
+	0xE4, 0xCD, 0x00, 0x00, 0xD6, 0xB9, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0xEF, 0xC0, 0x00, 0x00, /* 0xBC-0xBF */
+	0xE1, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xF6, 0xB9, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0xDF, 0xC7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xE4, 0xB1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDC, 0xE7, /* 0xEC-0xEF */
+	0xDC, 0xE8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xFA, 0xD6, 0x00, 0x00, 0xD3, 0xF6, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF1, 0xDA, /* 0xF8-0xFB */
+	0x00, 0x00, 0xFA, 0xF2, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_5D[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xFD, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0xD5, 0xCF, 0xD0, 0xF8, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0xCD, 0xDF, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0xF5, 0xCB, 0x00, 0x00, 0xE4, 0xF0, 0xCB, 0xAB, /* 0x14-0x17 */
+	0x00, 0x00, 0xD7, 0xC4, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xFE, /* 0x24-0x27 */
+	0x00, 0x00, 0xDD, 0xDA, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDA, 0xAE, /* 0x48-0x4B */
+	0xCA, 0xEE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0xD5, 0xB9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0xE3, 0xA1, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0xE8, 0xE3, 0x00, 0x00, 0x00, 0x00, 0xF3, 0xAB, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCF, 0xA9, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD3, 0xF7, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0xD4, 0xF1, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0xCE, 0xE4, 0x00, 0x00, 0xE8, 0xF2, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xF5, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xE7, 0xAE, 0x00, 0x00, 0xD6, 0xBA, 0x00, 0x00, /* 0xB8-0xBB */
+	0xDF, 0xEC, 0xE4, 0xC0, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0xE8, 0xE4, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0xD8, 0xB5, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0xDC, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0xF4, 0xB9, 0xF1, 0xB6, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0xE2, 0xDE, 0xE1, 0xB5, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xCD, 0xEF, 0xF1, 0xA7, 0xCE, 0xE5, /* 0xE4-0xE7 */
+	0xCB, 0xDD, 0x00, 0x00, 0x00, 0x00, 0xD9, 0xE3, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0xF3, 0xAC, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0xD0, 0xF9, 0xEC, 0xAB, 0xDE, 0xD3, /* 0xF0-0xF3 */
+	0xF7, 0xE9, 0x00, 0x00, 0x00, 0x00, 0xF9, 0xF5, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0xE1, 0xDE, 0xCB, 0xEE, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_5E[512] = {
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0xBC, 0xF8, 0xD6, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0xDB, 0xEE, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0xFD, 0xF1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0xF7, 0xB6, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xF4, 0xDE, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0xF2, 0xED, 0x00, 0x00, 0xDB, 0xD9, /* 0x18-0x1B */
+	0x00, 0x00, 0xF0, 0xA8, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0xE1, 0xFD, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDE, 0xD4, /* 0x28-0x2B */
+	0x00, 0x00, 0xE0, 0xAC, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xED, 0xE3, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0xD3, 0xE1, 0x00, 0x00, /* 0x34-0x37 */
+	0xDF, 0xC8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0xD9, 0xB6, 0x00, 0x00, 0xFD, 0xAC, /* 0x3C-0x3F */
+	0xEF, 0xD3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0xE4, 0xC1, 0xF8, 0xEB, 0x00, 0x00, 0xDB, 0xAC, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0xFC, 0xC6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0xD8, 0xAD, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF6, 0xBA, /* 0x5C-0x5F */
+	0x00, 0x00, 0xDB, 0xDF, 0xD3, 0xD3, 0xF8, 0xC7, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0xCA, 0xCE, 0xF8, 0xC1, /* 0x70-0x73 */
+	0xD2, 0xB4, 0x00, 0x00, 0x00, 0x00, 0xDC, 0xB4, /* 0x74-0x77 */
+	0xFA, 0xB9, 0xCA, 0xCF, 0x00, 0x00, 0xFC, 0xB3, /* 0x78-0x7B */
+	0xEA, 0xEA, 0xEA, 0xEB, 0xD0, 0xFA, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0xED, 0xE4, 0x00, 0x00, 0x00, 0x00, 0xDD, 0xE7, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0xDF, 0xC9, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDF, 0xED, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0xEE, 0xBC, 0x00, 0x00, 0xEF, 0xC1, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0xCC, 0xD2, 0x00, 0x00, /* 0x98-0x9B */
+	0xDD, 0xA4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0xDF, 0xCA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0xD3, 0xF8, 0xF1, 0xA8, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCD, 0xB7, /* 0xA8-0xAB */
+	0x00, 0x00, 0xEF, 0xD4, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xE4, 0xDD, 0xDF, 0xEE, 0xCB, 0xAC, /* 0xB4-0xB7 */
+	0xE9, 0xBC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0xEA, 0xEC, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0xDF, 0xCB, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0xF9, 0xBF, 0xD6, 0xAF, 0xD5, 0xC6, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0xCF, 0xAA, 0x00, 0x00, 0x00, 0x00, 0xCE, 0xA9, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0xD6, 0xF8, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0xF1, 0xB7, 0xEE, 0xF8, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD9, 0xD9, /* 0xDC-0xDF */
+	0xF3, 0xDF, 0x00, 0x00, 0xF8, 0xC8, 0xCE, 0xC6, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0xD5, 0xE6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF4, 0xE6, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0xC5, 0xEF, 0xD5, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0xCB, 0xEF, 0xFC, 0xDF, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_5F[512] = {
+	0x00, 0x00, 0xDC, 0xA7, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0xD6, 0xE7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xF8, 0xC9, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, 0xD2, /* 0x0C-0x0F */
+	0x00, 0x00, 0xE3, 0xBD, 0x00, 0x00, 0xCF, 0xE1, /* 0x10-0x13 */
+	0xF0, 0xC0, 0xEC, 0xDA, 0x00, 0x00, 0xDD, 0xD7, /* 0x14-0x17 */
+	0xFB, 0xF0, 0x00, 0x00, 0x00, 0x00, 0xEC, 0xAC, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0xA9, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0xFA, 0xD7, 0xFB, 0xC1, /* 0x24-0x27 */
+	0x00, 0x00, 0xD2, 0xC0, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0xE5, 0xB0, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0xED, 0xE5, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xCB, 0xAD, 0x00, 0x00, /* 0x38-0x3B */
+	0xF9, 0xB0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0xF7, 0xA5, 0x00, 0x00, 0xCB, 0xAE, 0x00, 0x00, /* 0x48-0x4B */
+	0xDA, 0xAF, 0x00, 0x00, 0xD8, 0xB6, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0xD3, 0xA7, 0xFB, 0xB2, /* 0x54-0x57 */
+	0x00, 0x00, 0xFD, 0xC4, 0x00, 0x00, 0xEC, 0xAD, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0xFB, 0xA1, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xE9, 0xE9, 0xEE, /* 0x64-0x67 */
+	0x00, 0x00, 0xF3, 0xF4, 0xF8, 0xF3, 0xF0, 0xC1, /* 0x68-0x6B */
+	0xDE, 0xAF, 0xF8, 0xB0, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0xF3, 0xE0, 0xE7, 0xAF, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDB, 0xAD, /* 0x74-0x77 */
+	0x00, 0x00, 0xE6, 0xB5, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0xF9, 0xA8, 0x00, 0x00, 0x00, 0x00, 0xDD, 0xD8, /* 0x7C-0x7F */
+	
+	0xE8, 0xD9, 0xEF, 0xD6, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0xD3, 0xE2, 0x00, 0x00, 0xE2, 0xDF, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0xFC, 0xE0, 0xD7, 0xC8, /* 0x88-0x8B */
+	0xFD, 0xAD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0xDF, 0xEF, 0xCC, 0xD3, 0xD3, 0xF9, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD4, 0xF0, /* 0x94-0x97 */
+	0xDB, 0xC7, 0xDE, 0xD5, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0xF0, 0xF4, 0x00, 0x00, /* 0x9C-0x9F */
+	0xD5, 0xD0, 0xE5, 0xD9, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xFC, 0xC7, 0xDC, 0xD6, 0xE2, 0xE0, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0xDA, 0xB0, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xF3, 0xA3, 0x00, 0x00, 0xD3, 0xEC, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xF4, 0xCB, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0xFD, 0xC5, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, 0xFD, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xF9, 0xB1, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0xD0, 0xFB, 0xEC, 0xDB, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0xF5, 0xBC, 0xF2, 0xA4, /* 0xD4-0xD7 */
+	0xD8, 0xCE, 0xD8, 0xCF, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0xF5, 0xF7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF6, 0xE1, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0xD2, 0xB7, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0xFB, 0xEC, 0x00, 0x00, 0xDD, 0xC8, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_60[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xE8, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0xD2, 0xC1, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xF8, 0xD7, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0xD6, 0xBB, 0xDE, 0xD6, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0xF7, 0xBD, 0xEC, 0xAE, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0xD0, 0xE1, 0x00, 0x00, 0xE0, 0xF5, /* 0x24-0x27 */
+	0xEA, 0xB3, 0x00, 0x00, 0xCE, 0xD6, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCC, 0xA5, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0xEC, 0xF6, 0xE2, 0xE1, 0xE3, 0xBE, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0xFC, 0xC8, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0xCD, 0xF0, 0x00, 0x00, 0xF9, 0xF6, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0xDF, 0xF0, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0xE5, 0xBF, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0xCE, 0xBF, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0xFC, 0xE1, 0xED, 0xB0, /* 0x60-0x63 */
+	0xFD, 0xD1, 0xF6, 0xBB, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0xF9, 0xCF, 0xEB, 0xDA, 0xCA, 0xC1, 0x00, 0x00, /* 0x68-0x6B */
+	0xD2, 0xB8, 0xCD, 0xF1, 0x00, 0x00, 0xE3, 0xD3, /* 0x6C-0x6F */
+	0xFD, 0xE6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0xE6, 0xED, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0xE3, 0xFA, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0xF0, 0xAA, 0xF9, 0xD0, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0xFC, 0xE2, 0x00, 0x00, 0xF8, 0xA7, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xE5, 0xEE, 0xF9, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE7, 0xF6, /* 0x9C-0x9F */
+	0xEA, 0xED, 0x00, 0x00, 0x00, 0x00, 0xFC, 0xB4, /* 0xA0-0xA3 */
+	0xF5, 0xC2, 0x00, 0x00, 0x00, 0x00, 0xD7, 0xDC, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0xF0, 0xF5, 0x00, 0x00, 0xDD, 0xE8, 0xD3, 0xED, /* 0xB0-0xB3 */
+	0xF5, 0xFC, 0x00, 0x00, 0xDA, 0xBF, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xCC, 0xFB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0xD3, 0xFA, 0xF4, 0xA4, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xEF, 0xD7, 0x00, 0x00, 0xD4, 0xC3, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0xFB, 0xE3, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0xFB, 0xED, 0x00, 0x00, /* 0xD8-0xDB */
+	0xE0, 0xAD, 0x00, 0x00, 0x00, 0x00, 0xEA, 0xEE, /* 0xDC-0xDF */
+	0xFB, 0xB3, 0xE4, 0xC2, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0xF6, 0xE7, 0xD2, 0xDD, 0x00, 0x00, 0xDF, 0xCC, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0xFC, 0xC9, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xE5, 0xA9, 0xE0, 0xF6, 0xF6, 0xB3, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_61[512] = {
+	0x00, 0x00, 0xE1, 0xFE, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0xCB, 0xF0, 0x00, 0x00, /* 0x04-0x07 */
+	0xEA, 0xEF, 0xEA, 0xF0, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0xDA, 0xC0, 0xF8, 0xB4, 0xEB, 0xF2, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0xE4, 0xC3, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xD7, 0xE4, 0xF1, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCA, 0xEF, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCE, 0xD7, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xFC, 0xCA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0xF3, 0xE1, 0x00, 0x00, 0x00, 0x00, 0xCB, 0xC4, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0xE3, 0xE5, 0x00, 0x00, 0xCB, 0xC5, 0xEA, 0xB4, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xBD, 0x00, 0x00, /* 0x40-0x43 */
+	0xD7, 0xC9, 0x00, 0x00, 0x00, 0x00, 0xEB, 0xDB, /* 0x44-0x47 */
+	0xED, 0xB1, 0x00, 0x00, 0xCC, 0xC3, 0xF7, 0xBE, /* 0x48-0x4B */
+	0xFC, 0xCB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF8, 0xF4, /* 0x50-0x53 */
+	0x00, 0x00, 0xD9, 0xB7, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0xF3, 0xD3, 0xF3, 0xD4, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0xF7, 0xE4, 0x00, 0x00, 0xF7, 0xD1, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0xD8, 0xB7, 0xCE, 0xB1, /* 0x60-0x63 */
+	0xCA, 0xC2, 0x00, 0x00, 0x00, 0x00, 0xFB, 0xB4, /* 0x64-0x67 */
+	0xCB, 0xC6, 0x00, 0x00, 0x00, 0x00, 0xF0, 0xF6, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0xD5, 0xE7, 0x00, 0x00, /* 0x6C-0x6F */
+	0xEA, 0xD0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0xCC, 0xD4, 0xCB, 0xAF, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0xF4, 0xAA, 0xE9, 0xAF, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xF5, 0xC3, 0xE9, 0xD8, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0xDD, 0xE9, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0xF1, 0xF3, 0x00, 0x00, /* 0x8C-0x8F */
+	0xD5, 0xFB, 0xDE, 0xBB, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0xF4, 0xFB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0xFD, 0xF3, 0xFD, 0xF2, 0xF7, 0xA6, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xDD, 0xC9, 0x00, 0x00, 0x00, 0x00, 0xD4, 0xD3, /* 0xA4-0xA7 */
+	0x00, 0x00, 0xCC, 0xA8, 0x00, 0x00, 0xDA, 0xC1, /* 0xA8-0xAB */
+	0xCC, 0xD5, 0x00, 0x00, 0xD9, 0xE4, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0xFA, 0xCA, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xE3, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0xD3, 0xBC, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0xCA, 0xF0, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD0, 0xC4, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCA, 0xD0, /* 0xC4-0xC7 */
+	0xFA, 0xAB, 0xEB, 0xEB, 0xE7, 0xF8, 0xD9, 0xE5, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0xD1, 0xD7, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0xF3, 0xA4, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0xD4, 0xFB, 0xFC, 0xE3, /* 0xF4-0xF7 */
+	0xFA, 0xD8, 0x00, 0x00, 0xF3, 0xD5, 0x00, 0x00, /* 0xF8-0xFB */
+	0xCF, 0xAB, 0x00, 0x00, 0x00, 0x00, 0xEB, 0xF3, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_62[512] = {
+	0xD5, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD3, 0xD4, /* 0x04-0x07 */
+	0xCD, 0xFC, 0x00, 0x00, 0xD9, 0xE6, 0x00, 0x00, /* 0x08-0x0B */
+	0xE2, 0xF9, 0xE2, 0xA1, 0xEB, 0xD4, 0x00, 0x00, /* 0x0C-0x0F */
+	0xE0, 0xF7, 0xE4, 0xB2, 0xCC, 0xFC, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xFB, 0xE4, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0xF4, 0xAB, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD0, 0xBD, /* 0x1C-0x1F */
+	0x00, 0x00, 0xCA, 0xF1, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xEF, 0xB8, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0xD7, 0xC0, 0x00, 0x00, /* 0x2C-0x2F */
+	0xEE, 0xFA, 0xFD, 0xF4, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0xD3, 0xE3, 0x00, 0x00, 0xFB, 0xC2, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0xD5, 0xE8, 0xDB, 0xAE, /* 0x3C-0x3F */
+	0xE1, 0xB6, 0xF8, 0xB7, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xBF, /* 0x44-0x47 */
+	0xFB, 0xC3, 0xDD, 0xEA, 0x00, 0x00, 0xE2, 0xA2, /* 0x48-0x4B */
+	0x00, 0x00, 0xEE, 0xA6, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF6, 0xE8, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0xF6, 0xF5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0xDD, 0xCA, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0xD0, 0xE2, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0xDD, 0xA6, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0xDD, 0xEB, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0xE4, 0xF9, 0x00, 0x00, 0x00, 0x00, 0xE3, 0xAF, /* 0x7C-0x7F */
+	
+	0xD0, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0xF4, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0xCC, 0xBC, 0xF7, 0xEA, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0xE5, 0xE4, 0xDF, 0xF1, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0xF7, 0xE1, 0x00, 0x00, 0xF9, 0xF7, /* 0x94-0x97 */
+	0xEF, 0xB9, 0x00, 0x00, 0x00, 0x00, 0xF8, 0xD8, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF9, 0xA9, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0xF8, 0xD9, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xEE, 0xBD, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xD8, 0xC6, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0xE4, 0xE3, 0xF5, 0xCE, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0xDD, 0xD9, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD9, 0xE7, /* 0xC4-0xC7 */
+	0xD2, 0xB9, 0xD5, 0xC3, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0xDA, 0xE5, 0xDA, 0xD0, 0x00, 0x00, 0xD1, 0xD9, /* 0xCC-0xCF */
+	0xCE, 0xD8, 0x00, 0x00, 0xCB, 0xDE, 0xF4, 0xAC, /* 0xD0-0xD3 */
+	0xDA, 0xFB, 0x00, 0x00, 0xF6, 0xE9, 0xE8, 0xF3, /* 0xD4-0xD7 */
+	0xCF, 0xAC, 0xF0, 0xF0, 0x00, 0x00, 0xF4, 0xFD, /* 0xD8-0xDB */
+	0xDB, 0xC8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0xCE, 0xC0, 0xE3, 0xD4, 0xD1, 0xCF, 0xF1, 0xF5, /* 0xEC-0xEF */
+	0x00, 0x00, 0xCD, 0xF2, 0x00, 0x00, 0xCF, 0xEB, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCD, 0xB8, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0xA6, 0xD1, 0xDA, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_63[512] = {
+	0x00, 0x00, 0xF2, 0xA5, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF2, 0xA6, /* 0x04-0x07 */
+	0x00, 0x00, 0xE4, 0xCE, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0xD3, 0xFB, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF1, 0xA9, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF2, 0xC9, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xEF, 0xD8, 0xE6, 0xC9, /* 0x38-0x3B */
+	0x00, 0x00, 0xD8, 0xB8, 0xFA, 0xF3, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0xF3, 0xB5, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0xF8, 0xA4, 0x00, 0x00, 0x00, 0x00, 0xD1, 0xF3, /* 0x4C-0x4F */
+	0xE6, 0xC8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0xF8, 0xDA, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDC, 0xE9, /* 0x64-0x67 */
+	0xDE, 0xD7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0xCB, 0xDF, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0xCF, 0xEC, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF4, 0xDF, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0xD1, 0xF4, 0xD2, 0xBA, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDF, 0xF2, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE1, 0xB7, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0xE2, 0xA3, 0xD3, 0xFC, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0xED, 0xE6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0xDB, 0xC9, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0xFA, 0x00, 0x00, /* 0x94-0x97 */
+	0xCF, 0xDE, 0x00, 0x00, 0x00, 0x00, 0xCE, 0xD0, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0xD5, 0xD3, 0xF3, 0xF5, 0xF7, 0xAE, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xEF, 0xC8, 0x00, 0x00, 0xCD, 0xF3, /* 0xA4-0xA7 */
+	0xF5, 0xCF, 0xE5, 0xF3, 0xF0, 0xC2, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0xCA, 0xD1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xEA, 0xF1, 0x00, 0x00, 0xD0, 0xA6, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD9, 0xDA, /* 0xCC-0xCF */
+	0xF0, 0xAB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0xEB, 0xE7, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xC0, 0xFC, 0xB5, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0xE4, 0xC4, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0xCC, 0xA9, 0xFD, 0xC6, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xEA, 0xB5, 0x00, 0x00, 0xE5, 0xAA, 0xDF, 0xBA, /* 0xF4-0xF7 */
+};
+
+static unsigned char u2c_64[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0xE1, 0xDF, 0x00, 0x00, 0xDA, 0xD1, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0xE1, 0xB8, 0x00, 0x00, 0xE8, 0xF4, 0xD3, 0xFD, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0xE2, 0xA4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0xF2, 0xCA, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0xDA, 0xE6, 0xF7, 0xB3, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xFD, 0xCD, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0xF3, 0xB6, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0xEE, 0xD7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0xF5, 0xC4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0xD8, 0xA4, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF2, 0xA7, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0xD9, 0xB8, 0xD9, 0xB9, 0xEF, 0xC9, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0xD6, 0xCE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0xF7, 0xCB, 0xDF, 0xAE, 0xE8, 0xF5, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0xD2, 0xB5, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0xD3, 0xD5, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xF4, 0xCC, 0xDA, 0xFC, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD9, 0xE8, /* 0xA8-0xAB */
+	0x00, 0x00, 0xF7, 0xEB, 0xF5, 0xC9, 0x00, 0x00, /* 0xAC-0xAF */
+	0xF3, 0xBC, 0x00, 0x00, 0xDA, 0xD2, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD3, 0xB5, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0xE8, 0xB6, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xD6, 0xCF, 0xF4, 0xBA, 0x00, 0x00, 0xF7, 0xC9, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0xCC, 0xAA, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0xF0, 0xC3, 0xCC, 0xD6, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0xD0, 0xD3, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xD3, 0xBD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xDB, 0xFB, 0x00, 0x00, 0xCB, 0xE0, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0xD3, 0xE4, 0xF6, 0xF7, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xD5, 0xBA, 0xF3, 0xCD, 0xCB, 0xE1, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0xEB, 0xF4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0xF4, 0xAD, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xFC, 0xAA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0xF7, 0xEC, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0xE8, 0xF6, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_65[512] = {
+	0xDA, 0xE7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0xF7, 0xCC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0xE5, 0xC1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0xE0, 0xEE, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD5, 0xFD, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xCE, 0xE6, 0xFC, 0xAB, /* 0x28-0x2B */
+	0xD5, 0xBB, 0x00, 0x00, 0x00, 0x00, 0xF2, 0xA8, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0xA5, 0xCD, 0xB9, /* 0x34-0x37 */
+	0xEA, 0xF2, 0xCB, 0xC7, 0x00, 0x00, 0xCD, 0xF4, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0xDB, 0xAF, 0xEF, 0xD9, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0xCD, 0xBA, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0xFC, 0xF9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0xDF, 0xF3, 0xCE, 0xE7, 0xDA, 0xC2, /* 0x4C-0x4F */
+	0x00, 0x00, 0xCF, 0xAD, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0xF9, 0xF8, 0xA8, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0xF3, 0xE2, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0xCA, 0xF2, 0xDF, 0xA4, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0xD4, 0xC4, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0xCC, 0xD7, 0xE5, 0xC2, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0xCD, 0xBB, 0x00, 0x00, /* 0x70-0x73 */
+	0xEF, 0xDA, 0xEE, 0xD8, 0x00, 0x00, 0xDD, 0xA7, /* 0x74-0x77 */
+	0xE2, 0xA6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0xC0, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0xD6, 0xB0, 0xF8, 0xCA, /* 0x80-0x83 */
+	0x00, 0x00, 0xFC, 0xFA, 0x00, 0x00, 0xD9, 0xFE, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0xDE, 0xB0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0xDD, 0xEC, 0xDA, 0xE8, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD4, 0xE0, /* 0x94-0x97 */
+	0x00, 0x00, 0xD6, 0xF9, 0x00, 0x00, 0xCD, 0xD7, /* 0x98-0x9B */
+	0xDE, 0xD8, 0x00, 0x00, 0x00, 0x00, 0xF2, 0xF8, /* 0x9C-0x9F */
+	0x00, 0x00, 0xE4, 0xD6, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xD0, 0xC5, 0xF4, 0xAE, 0x00, 0x00, 0xDD, 0xA8, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xED, 0xC5, /* 0xA8-0xAB */
+	0xF3, 0xD6, 0x00, 0x00, 0x00, 0x00, 0xDE, 0xD9, /* 0xAC-0xAF */
+	0xE3, 0xE6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD3, 0xA8, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xDB, 0xB0, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0xE5, 0xDA, 0xE3, 0xBF, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0xDB, 0xB1, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xD5, 0xE9, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xC1, /* 0xC8-0xCB */
+	0xEF, 0xDB, 0x00, 0x00, 0x00, 0x00, 0xF0, 0xE9, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0xD7, 0xB2, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD0, 0xFD, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0xD9, 0xE9, 0x00, 0x00, 0x00, 0x00, 0xD0, 0xFE, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xEC, 0xED, 0xD3, 0xA9, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xF2, 0xA9, 0xF0, 0xC4, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0xE2, 0xE2, 0xE9, 0xEF, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0xF9, 0xD1, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xE9, 0xD9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0xE8, 0xDA, 0xDA, 0xC3, /* 0xF8-0xFB */
+	0xDA, 0xC4, 0xD4, 0xC5, 0x00, 0x00, 0xE7, 0xFA, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_66[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0xCD, 0xE0, 0xE3, 0xB0, /* 0x04-0x07 */
+	0x00, 0x00, 0xDB, 0xB2, 0xFB, 0xC4, 0x00, 0x00, /* 0x08-0x0B */
+	0xF3, 0xE3, 0x00, 0x00, 0xD9, 0xA5, 0xFB, 0xE7, /* 0x0C-0x0F */
+	0xDD, 0xCB, 0xD0, 0xD4, 0x00, 0x00, 0xE6, 0xB6, /* 0x10-0x13 */
+	0xE0, 0xAE, 0xFD, 0xDA, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0xDC, 0xB5, 0xE0, 0xF8, /* 0x1C-0x1F */
+	0xE7, 0xB1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0xF5, 0xF0, 0x00, 0x00, 0xD8, 0xDC, /* 0x24-0x27 */
+	0xED, 0xC6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0xE1, 0xB9, 0x00, 0x00, 0xE3, 0xC0, /* 0x2C-0x2F */
+	0xF9, 0xC0, 0xE9, 0xF0, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0xD9, 0xDB, 0x00, 0x00, 0xF3, 0xE4, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xDC, 0xB6, 0xE4, 0xE9, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0xF0, 0xC5, 0xE3, 0xC1, 0xFC, 0xCC, /* 0x40-0x43 */
+	0xFC, 0xCD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0xF2, 0xCB, 0x00, 0x00, 0xF2, 0xCC, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xCF, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0xF1, 0xDB, 0x00, 0x00, 0xFA, 0xD9, /* 0x58-0x5B */
+	0x00, 0x00, 0xF1, 0xB8, 0xFD, 0xF5, 0xE0, 0xF9, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0xE7, 0xFB, 0xFC, 0xB7, 0xFC, 0xE4, 0xFB, 0xC5, /* 0x64-0x67 */
+	0xE3, 0xE7, 0xD8, 0xB9, 0x00, 0x00, 0xF6, 0xF8, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0xDC, 0xC5, 0xCC, 0xD8, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xAF, /* 0x70-0x73 */
+	0xF4, 0xE7, 0x00, 0x00, 0xEF, 0xDC, 0xCF, 0xFC, /* 0x74-0x77 */
+	0xEF, 0xDD, 0x00, 0x00, 0xF2, 0xAA, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0xFD, 0xBE, 0x00, 0x00, 0x00, 0x00, 0xCA, 0xAC, /* 0x84-0x87 */
+	0xFD, 0xBB, 0xFD, 0xC7, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0xB2, 0x00, 0x00, /* 0x8C-0x8F */
+	0xEA, 0xD1, 0xDF, 0xF4, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0xD1, 0xEC, 0xE4, 0xDE, /* 0x94-0x97 */
+	0xE5, 0xC3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0xD9, 0xA6, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0xCD, 0xBC, 0x00, 0x00, 0xF3, 0xE5, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xED, 0xD5, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0xD9, 0xBA, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0xED, 0xE7, 0xFB, 0xB5, /* 0xB0-0xB3 */
+	0xF8, 0xEC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xE0, 0xE7, 0x00, 0x00, 0xCC, 0xD9, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0xD4, 0xC6, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xE7, 0xA5, 0x00, 0x00, 0xD5, 0xF5, 0xD3, 0xBE, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xFC, 0xFB, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0xF2, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xDF, 0xF5, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0xE8, 0xF8, 0xF8, 0xED, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0xCE, 0xC7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0xFD, 0xF6, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0xE8, 0xD8, 0x00, 0x00, 0xCD, 0xD8, 0xE7, 0xD6, /* 0xF0-0xF3 */
+	0xCC, 0xDA, 0x00, 0x00, 0x00, 0x00, 0xCA, 0xE3, /* 0xF4-0xF7 */
+	0xDF, 0xF6, 0xF0, 0xC7, 0xF0, 0xC6, 0x00, 0x00, /* 0xF8-0xFB */
+	0xD8, 0xBA, 0x00, 0x00, 0xF1, 0xF4, 0xF4, 0xF0, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_67[512] = {
+	0xF5, 0xCC, 0x00, 0x00, 0x00, 0x00, 0xFC, 0xE5, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0xEA, 0xC5, 0xEA, 0xF3, 0x00, 0x00, 0xDD, 0xDB, /* 0x08-0x0B */
+	0x00, 0x00, 0xDC, 0xD7, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0xDE, 0xFD, 0xF2, 0xF9, 0x00, 0x00, 0xD5, 0xC7, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD8, 0xD0, /* 0x18-0x1B */
+	0x00, 0x00, 0xF0, 0xC8, 0xD1, 0xA1, 0xD1, 0xA2, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0xD9, 0xD4, 0xD6, 0xE8, /* 0x24-0x27 */
+	0xD9, 0xCA, 0x00, 0x00, 0xDA, 0xB1, 0xD8, 0xC7, /* 0x28-0x2B */
+	0xDC, 0xE2, 0xF3, 0xCE, 0xF5, 0xF4, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0xF1, 0xB9, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0xDA, 0xD3, 0x00, 0x00, 0xF6, 0xEA, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xCF, 0xF5, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0xFD, 0xAE, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xCA, 0xD2, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0xDF, 0xB4, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0xD7, 0xDD, 0xFA, 0xBA, /* 0x4C-0x4F */
+	0xEE, 0xA7, 0xF5, 0xBD, 0x00, 0x00, 0xF8, 0xF5, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0xED, 0xE8, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0xD4, 0xE1, 0x00, 0x00, 0xD1, 0xA3, 0xE1, 0xD6, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0xF9, 0xF8, 0x00, 0x00, 0xDB, 0xCA, /* 0x6C-0x6F */
+	0xCB, 0xF9, 0xD4, 0xD4, 0x00, 0x00, 0xD9, 0xDC, /* 0x70-0x73 */
+	0x00, 0x00, 0xEE, 0xBE, 0x00, 0x00, 0xF7, 0xED, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD2, 0xEE, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xE6, 0xF7, 0xF9, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDD, 0xED, /* 0x84-0x87 */
+	0x00, 0x00, 0xE8, 0xDB, 0x00, 0x00, 0xDB, 0xB3, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD1, 0xF7, /* 0x8C-0x8F */
+	0xE0, 0xB0, 0x00, 0x00, 0x00, 0x00, 0xD4, 0xE2, /* 0x90-0x93 */
+	0x00, 0x00, 0xF6, 0xD7, 0x00, 0x00, 0xD7, 0xF9, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0xD8, 0xDD, 0x00, 0x00, /* 0x98-0x9B */
+	0xCD, 0xFD, 0xF2, 0xAB, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCD, 0xBD, /* 0xAC-0xAF */
+	0xF8, 0xC2, 0x00, 0x00, 0x00, 0x00, 0xF2, 0xAC, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0xCA, 0xAD, 0xCA, 0xAE, /* 0xB4-0xB7 */
+	0xCF, 0xAE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0xC2, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xDC, 0xB7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDB, 0xDA, /* 0xCC-0xCF */
+	0xD9, 0xBB, 0xCA, 0xF3, 0xF6, 0xD3, 0xE6, 0xF8, /* 0xD0-0xD3 */
+	0xEA, 0xF5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0xEA, 0xF6, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0xF6, 0xF9, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0xCF, 0xAF, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0xCA, 0xD3, 0x00, 0x00, 0x00, 0x00, 0xCA, 0xAF, /* 0xEC-0xEF */
+	0xD2, 0xB0, 0xF1, 0xBA, 0x00, 0x00, 0xD7, 0xB3, /* 0xF0-0xF3 */
+	0xE3, 0xC3, 0xF3, 0xFD, 0xDE, 0xDA, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDE, 0xDB, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0xEF, 0xDE, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_68[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0xE3, 0xEE, 0xFB, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xDF, 0xF7, 0xD7, 0xCA, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0xCE, 0xE8, 0xDB, 0xDB, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xF1, 0xBB, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE9, 0xF1, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0xFA, 0xB7, 0xD0, 0xC6, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0xCC, 0xAB, 0xEE, 0xA8, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0xCB, 0xFA, 0xF9, 0xF9, 0xCC, 0xFD, 0xD3, 0xFE, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0xE4, 0xD0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0xF2, 0xEE, 0x00, 0x00, /* 0x4C-0x4F */
+	0xD4, 0xD5, 0xDF, 0xCD, 0x00, 0x00, 0xFC, 0xB8, /* 0x50-0x53 */
+	0xD1, 0xD0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0xF2, 0xCD, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0xF7, 0xD2, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCA, 0xD4, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xD5, 0xD9, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0xD8, 0xDE, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCD, 0xD9, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEE, 0xA9, /* 0x90-0x93 */
+	0xF6, 0xBC, 0x00, 0x00, 0x00, 0x00, 0xCC, 0xDB, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0xF0, 0xC9, 0x00, 0x00, 0xFC, 0xFC, /* 0x9C-0x9F */
+	0x00, 0x00, 0xE8, 0xC9, 0xF4, 0xFE, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE7, 0xFC, /* 0xA4-0xA7 */
+	0xD7, 0xDE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0xDE, 0xDC, 0x00, 0x00, 0xF0, 0xAC, /* 0xAC-0xAF */
+	0xCC, 0xFE, 0xCD, 0xE1, 0x00, 0x00, 0xE1, 0xBA, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xDB, 0xEF, 0xDA, 0xB2, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xD1, 0xA5, 0xDC, 0xB8, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xD8, 0xF6, 0x00, 0x00, 0xD1, 0xA4, /* 0xC8-0xCB */
+	0x00, 0x00, 0xCD, 0xE2, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0xDC, 0xEA, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xF0, 0xF7, 0x00, 0x00, 0xF0, 0xCA, /* 0xD4-0xD7 */
+	0xD0, 0xBE, 0x00, 0x00, 0xDD, 0xDC, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD4, 0xD6, /* 0xDC-0xDF */
+	0xD3, 0xD6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xED, 0xD0, /* 0xE4-0xE7 */
+	0xCD, 0xA1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0xDF, 0xB5, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0xDF, 0xF8, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xD4, 0xA1, 0xCE, 0xB2, 0x00, 0x00, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_69[512] = {
+	0xE8, 0xCA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0xEB, 0xF5, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0xE3, 0xD5, 0xF5, 0xD0, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0xF5, 0xA1, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD9, 0xA7, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xE5, 0xAB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0xE6, 0xCB, 0x00, 0x00, 0xF5, 0xF1, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xC5, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF9, 0xA3, /* 0x50-0x53 */
+	0xE0, 0xDB, 0xF6, 0xEB, 0x00, 0x00, 0xCB, 0xF1, /* 0x54-0x57 */
+	0x00, 0x00, 0xD9, 0xEA, 0xF5, 0xA2, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0xD7, 0xD1, 0x00, 0x00, /* 0x5C-0x5F */
+	0xD1, 0xF8, 0xEA, 0xF8, 0xEA, 0xF9, 0xDA, 0xB3, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0xEF, 0xDF, 0x00, 0x00, 0x00, 0x00, 0xF1, 0xEF, /* 0x68-0x6B */
+	0x00, 0x00, 0xE5, 0xF6, 0xEE, 0xBF, 0xE2, 0xE4, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0xD0, 0xBF, 0x00, 0x00, 0xFA, 0xAC, /* 0x74-0x77 */
+	0xF5, 0xD1, 0xE7, 0xB3, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0xE9, 0xBE, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF2, 0xCE, /* 0x98-0x9B */
+	0xDB, 0xB4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xFC, 0xCE, 0x00, 0x00, 0xDD, 0xEE, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0xB4, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0xD7, 0xB4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF7, 0xB4, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0xCD, 0xBE, 0x00, 0x00, 0xDA, 0xE9, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCF, 0xB0, /* 0xC8-0xCB */
+	0xF7, 0xD9, 0xF3, 0xE6, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0xCE, 0xD9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xCE, 0xAA, 0x00, 0x00, 0xCB, 0xC8, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD0, 0xA7, /* 0xF8-0xFB */
+	0x00, 0x00, 0xF0, 0xCB, 0x00, 0x00, 0xD0, 0xC7, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_6A[512] = {
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0xC5, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xDB, 0xE0, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0xD5, 0xDA, 0x00, 0x00, 0xD7, 0xA7, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEE, 0xC0, /* 0x14-0x17 */
+	0x00, 0x00, 0xF8, 0xF6, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0xF5, 0xD2, 0xED, 0xE9, /* 0x1C-0x1F */
+	0x00, 0x00, 0xD9, 0xBC, 0x00, 0x00, 0xE5, 0xC6, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0xF5, 0xA3, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0xDA, 0xD4, 0xE2, 0xA7, 0xFB, 0xFC, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0xF1, 0xDC, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0xCA, 0xF4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0xE8, 0xFA, 0x00, 0x00, 0x00, 0x00, 0xCE, 0xE9, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xF8, 0xE2, 0xE5, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0xD0, 0xB9, 0xD4, 0xF2, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD1, 0xA6, /* 0x5C-0x5F */
+	0x00, 0x00, 0xDF, 0xCE, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFC, 0xF4, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xD3, 0xAA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0xCC, 0xAC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0xEF, 0xE0, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0xE5, 0xE5, 0xD0, 0xD5, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDB, 0xFC, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0xFC, 0xE6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0xCB, 0xFE, 0xED, 0xEA, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDE, 0xB1, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF9, 0xE3, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0xD4, 0xA2, 0xCF, 0xF6, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD6, 0xD0, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0xD5, 0xEA, 0xF1, 0xEE, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0xFA, 0xCB, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE5, 0xA1, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_6B[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0xD5, 0xB1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xCF, 0xED, 0x00, 0x00, /* 0x08-0x0B */
+	0xED, 0xEB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0xD5, 0xB2, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xD5, 0xBC, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0xFD, 0xE2, 0xF3, 0xAD, 0x00, 0x00, 0xFD, 0xDB, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xB0, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xD1, 0xA7, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0xFD, 0xE3, 0xCE, 0xB3, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xFD, 0xE4, 0xFA, 0xCE, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0xCA, 0xB0, 0x00, 0x00, 0xF7, 0xA7, 0x00, 0x00, /* 0x4C-0x4F */
+	0xCF, 0xB1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE6, 0xA2, /* 0x5C-0x5F */
+	0x00, 0x00, 0xFC, 0xB6, 0xF2, 0xAD, 0xEF, 0xE1, /* 0x60-0x63 */
+	0xF3, 0xAE, 0xDC, 0xC6, 0xD9, 0xEB, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0xE8, 0xE0, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xA8, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD5, 0xF6, /* 0x74-0x77 */
+	0xCF, 0xFD, 0x00, 0x00, 0x00, 0x00, 0xDE, 0xDD, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD9, 0xD1, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xEA, /* 0x80-0x83 */
+	0xF2, 0xCF, 0x00, 0x00, 0xF7, 0xBF, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0xE2, 0xE6, 0xE2, 0xA8, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0xD6, 0x00, 0x00, /* 0x94-0x97 */
+	0xED, 0xD1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xF9, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0xD6, 0xB1, 0xDE, 0xB2, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0xE8, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xD3, 0xAB, 0x00, 0x00, 0xEB, 0xDC, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0xDF, 0xAF, 0x00, 0x00, /* 0xB8-0xBB */
+	0xCA, 0xC3, 0x00, 0x00, 0x00, 0x00, 0xEE, 0xFC, /* 0xBC-0xBF */
+	0x00, 0x00, 0xFD, 0xC3, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xEB, 0xF6, 0xCF, 0xB2, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD9, 0xEC, /* 0xC8-0xCB */
+	0x00, 0x00, 0xD9, 0xBD, 0x00, 0x00, 0xD8, 0xDF, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0xD4, 0xB8, 0xEB, 0xBE, /* 0xD0-0xD3 */
+	0xDD, 0xEF, 0x00, 0x00, 0xDD, 0xF0, 0xDD, 0xF1, /* 0xD4-0xD7 */
+	0xDD, 0xF2, 0x00, 0x00, 0x00, 0x00, 0xD9, 0xBE, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFB, 0xC6, /* 0xE8-0xEB */
+	0xCF, 0xB3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+};
+
+static unsigned char u2c_6C[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0xEE, 0xFD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xAB, /* 0x0C-0x0F */
+	0x00, 0x00, 0xDA, 0xC5, 0x00, 0x00, 0xD8, 0xEC, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD1, 0xA8, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0xE2, 0xA9, 0x00, 0x00, 0x00, 0x00, 0xDE, 0xBC, /* 0x34-0x37 */
+	0xE7, 0xB5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0xDB, 0xF0, 0x00, 0x00, /* 0x3C-0x3F */
+	0xEF, 0xE2, 0xF1, 0xF0, 0xCF, 0xB4, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0xDB, 0xF1, 0x00, 0x00, /* 0x4C-0x4F */
+	0xE0, 0xB1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0xDF, 0xA5, 0x00, 0x00, 0xF9, 0xD2, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0xFD, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0xE6, 0xA3, 0xFB, 0xF1, 0xCB, 0xB0, /* 0x5C-0x5F */
+	0xF2, 0xAE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0xCD, 0xE7, 0x00, 0x00, 0xE8, 0xDC, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0xE7, 0xD7, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0xF7, 0xC0, 0x00, 0x00, 0xD0, 0xE3, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0xDA, 0xA1, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0xCC, 0xBD, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0xD1, 0xA9, 0xDD, 0xCC, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xE3, 0xFE, 0xD1, 0xAA, 0xE8, 0xAA, /* 0x80-0x83 */
+	0x00, 0x00, 0xEA, 0xB6, 0xF9, 0xFA, 0xE6, 0xCC, /* 0x84-0x87 */
+	0xF6, 0xD8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0xD4, 0xC7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0xD9, 0xCB, 0x00, 0x00, 0xD9, 0xD2, 0xD3, 0xCB, /* 0x90-0x93 */
+	0xD8, 0xF7, 0xDA, 0xA9, 0xF5, 0xF8, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0xDE, 0xDE, 0xF2, 0xAF, 0xF8, 0xA9, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD8, 0xC8, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0xEE, 0xC1, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF9, 0xC1, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xDD, 0xF3, 0xEA, 0xFA, 0x00, 0x00, 0xF6, 0xBD, /* 0xB8-0xBB */
+	0xE1, 0xBB, 0xCD, 0xBF, 0xF4, 0xD4, 0xE6, 0xCD, /* 0xBC-0xBF */
+	0x00, 0x00, 0xFC, 0xCF, 0xFB, 0xA2, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xE0, 0xDC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xF4, 0xBB, 0xDA, 0xD5, 0x00, 0x00, /* 0xC8-0xCB */
+	0xF9, 0xB2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFB, 0xF2, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xDB, 0xF6, 0x00, 0x00, 0xDE, 0xDF, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDB, 0xF2, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0xF8, 0xDC, 0xF7, 0xEE, 0xEB, 0xE8, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xD2, 0xFA, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xF1, 0xBC, 0x00, 0x00, 0x00, 0x00, 0xFA, 0xDA, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0xDA, 0xEA, 0xDA, 0xC6, /* 0xEC-0xEF */
+	0xF7, 0xC1, 0x00, 0x00, 0x00, 0x00, 0xE7, 0xB6, /* 0xF0-0xF3 */
+};
+
+static unsigned char u2c_6D[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE5, 0xC7, /* 0x08-0x0B */
+	0xD6, 0xAC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0xDC, 0xC7, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE1, 0xA9, /* 0x14-0x17 */
+	0x00, 0x00, 0xE2, 0xAA, 0x00, 0x00, 0xD5, 0xA6, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0xD4, 0xD7, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0xF2, 0xD0, 0x00, 0x00, 0xEA, 0xFB, /* 0x24-0x27 */
+	0x00, 0x00, 0xE0, 0xDD, 0xFB, 0xF3, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0xF1, 0xBD, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0xE2, 0xE7, 0xFD, 0xD7, 0x00, 0x00, /* 0x34-0x37 */
+	0xCE, 0xC8, 0xEA, 0xB7, 0x00, 0x00, 0xFC, 0xC0, /* 0x38-0x3B */
+	0x00, 0x00, 0xFD, 0xE7, 0xF7, 0xEF, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0xD7, 0xB5, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0xEF, 0xBA, 0xF1, 0xDD, 0x00, 0x00, /* 0x58-0x5B */
+	0xDE, 0xB3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE8, 0xCB, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0xF8, 0xDD, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0xFB, 0xC7, 0xD5, 0xC8, 0x00, 0x00, /* 0x68-0x6B */
+	0xD7, 0xDF, 0x00, 0x00, 0xDD, 0xA9, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0xE9, 0xB1, 0x00, 0x00, 0x00, 0x00, 0xFA, 0xAD, /* 0x74-0x77 */
+	0xF6, 0xD9, 0xFA, 0xF4, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF8, 0xAA, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0xE6, 0xEE, 0x00, 0x00, 0xCC, 0xDC, /* 0x84-0x87 */
+	0xE1, 0xBC, 0xE0, 0xEF, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0xE9, 0xBF, 0xFC, 0xFD, 0xE6, 0xCE, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0xE1, 0xD7, 0x00, 0x00, 0xE6, 0xCF, /* 0x90-0x93 */
+	0x00, 0x00, 0xF4, 0xF1, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xF3, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0xFB, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xF9, 0xE4, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0xEF, 0xE3, 0x00, 0x00, 0x00, 0x00, 0xCF, 0xEE, /* 0xC0-0xC3 */
+	0xF6, 0xBE, 0xE0, 0xB2, 0xFC, 0xFE, 0xD1, 0xAB, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD7, 0xFA, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFB, 0xC8, /* 0xCC-0xCF */
+	0x00, 0x00, 0xE2, 0xD7, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xD4, 0xA3, 0xF0, 0xF8, 0xD7, 0xA8, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xE7, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0xD3, 0xBF, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xEF, 0xE4, 0x00, 0x00, 0xD7, 0xC5, 0xEB, 0xE2, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0xFC, 0xE7, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0xE4, 0xA2, 0x00, 0x00, 0xE2, 0xE8, /* 0xF0-0xF3 */
+	0x00, 0x00, 0xE6, 0xD0, 0x00, 0x00, 0xFB, 0xE8, /* 0xF4-0xF7 */
+	0xF4, 0xE8, 0xE5, 0xF4, 0xF4, 0xBC, 0xF4, 0xD5, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_6E[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDF, 0xB6, /* 0x14-0x17 */
+	0x00, 0x00, 0xFC, 0xB9, 0xEE, 0xC2, 0xCA, 0xF5, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEF, 0xE5, /* 0x1C-0x1F */
+	0xCB, 0xE2, 0xD4, 0xA4, 0x00, 0x00, 0xDE, 0xE0, /* 0x20-0x23 */
+	0xDA, 0xFD, 0xE4, 0xC6, 0xE8, 0xBE, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xDE, /* 0x28-0x2B */
+	0xF6, 0xB4, 0xEA, 0xD2, 0x00, 0x00, 0xF9, 0xFB, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0xC2, 0x00, 0x00, /* 0x30-0x33 */
+	0xCA, 0xE4, 0x00, 0x00, 0xE7, 0xB7, 0x00, 0x00, /* 0x34-0x37 */
+	0xEA, 0xFD, 0x00, 0x00, 0xD9, 0xDD, 0x00, 0x00, /* 0x38-0x3B */
+	0xDA, 0xB4, 0xEE, 0xAA, 0xFB, 0xE9, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDB, 0xCB, /* 0x40-0x43 */
+	0xDA, 0xB5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0xF1, 0xBE, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0xD3, 0xAC, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0xFB, 0xC9, 0x00, 0x00, /* 0x54-0x57 */
+	0xDF, 0xCF, 0x00, 0x00, 0x00, 0x00, 0xD3, 0xC0, /* 0x58-0x5B */
+	0xE3, 0xD7, 0x00, 0x00, 0xEF, 0xE6, 0xFC, 0xD0, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE9, 0xC0, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF5, 0xD3, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0xEC, 0xDC, 0xF7, 0xB7, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0xEA, 0xB8, 0xD1, 0xF9, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0xDC, 0xC8, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0xEA, 0xB9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0xF1, 0xDE, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0xD7, 0xB6, 0xCF, 0xB5, 0x00, 0x00, 0xD9, 0xA8, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0xEC, 0xEE, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xDD, 0xAA, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0xCD, 0xA2, 0xE8, 0xAE, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE1, 0xBD, /* 0xAC-0xAF */
+	0x00, 0x00, 0xF2, 0xD1, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xC1, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0xD2, 0xFC, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0xDB, 0xB5, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xF3, 0xE7, 0xD8, 0xFE, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xFC, 0xD1, 0x00, 0x00, 0xED, 0xB2, /* 0xC8-0xCB */
+	0xF4, 0xAF, 0x00, 0x00, 0xFB, 0xA3, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0xFC, 0xC1, 0x00, 0x00, 0xEE, 0xAB, /* 0xD0-0xD3 */
+	0xD4, 0xA5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF4, 0xF2, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xEE, 0xD9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xFB, 0xCA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0xCD, 0xE3, 0xD8, 0xBB, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_6F[512] = {
+	0x00, 0x00, 0xE5, 0xDB, 0xF8, 0xF7, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0xF6, 0xD4, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD7, 0xA9, /* 0x0C-0x0F */
+	0x00, 0x00, 0xCB, 0xC9, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0xE6, 0xD1, 0xF0, 0xCC, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0xD8, 0xAE, 0x00, 0x00, 0xF9, 0xD3, 0xD5, 0xFE, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD8, 0xBC, /* 0x28-0x2B */
+	0xF2, 0xB0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0xE2, 0xAB, 0xF3, 0xE8, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0xEF, 0xC2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xED, 0xEC, /* 0x3C-0x3F */
+	0x00, 0x00, 0xE7, 0xB8, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0xDA, 0xFE, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0xCC, 0xBE, 0x00, 0x00, 0x00, 0x00, 0xF2, 0xFC, /* 0x54-0x57 */
+	0xDA, 0xEB, 0x00, 0x00, 0xE2, 0xD8, 0xED, 0xD6, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0xD6, 0xD1, 0xE0, 0xB3, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0xFC, 0xD2, 0x00, 0x00, /* 0x60-0x63 */
+	0xEB, 0xC8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0xD3, 0xC1, 0xF0, 0xCD, 0x00, 0x00, /* 0x6C-0x6F */
+	0xCF, 0xF7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0xED, 0xD2, 0x00, 0x00, /* 0x78-0x7B */
+	0xD4, 0xD8, 0xDC, 0xC9, 0xD7, 0xF1, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xDF, 0xBB, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0xF3, 0xA5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0xF4, 0xCD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0xF1, 0xBF, 0xF8, 0xB1, 0x00, 0x00, /* 0x8C-0x8F */
+	0xE9, 0xFA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0xFB, 0xCB, 0x00, 0x00, 0x00, 0x00, 0xCA, 0xD5, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF9, 0xD4, /* 0xA0-0xA3 */
+	0xF7, 0xCA, 0x00, 0x00, 0x00, 0x00, 0xD6, 0xC8, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0xFC, 0xE8, 0xF3, 0xBD, /* 0xAC-0xAF */
+	0x00, 0x00, 0xEE, 0xFE, 0x00, 0x00, 0xE7, 0xFE, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xD3, 0xC2, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0xD3, 0xB6, 0x00, 0x00, /* 0xBC-0xBF */
+	0xCC, 0xAD, 0xF6, 0xFA, 0xD6, 0xB2, 0xD2, 0xD8, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0xD8, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xE3, 0xA5, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0xB9, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0xAD, /* 0xDC-0xDF */
+	0xFB, 0xCC, 0xEB, 0xA1, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0xD4, 0xA6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0xFB, 0xCD, 0x00, 0x00, 0xD5, 0xBD, /* 0xE8-0xEB */
+	0xF1, 0xDF, 0x00, 0x00, 0x00, 0x00, 0xF6, 0xFB, /* 0xEC-0xEF */
+	0x00, 0x00, 0xDE, 0xB4, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0xD5, 0xEB, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_70[512] = {
+	0x00, 0x00, 0xE5, 0xC8, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0xFB, 0xA4, 0xD4, 0xB9, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xDE, 0xE1, 0x00, 0x00, 0xE4, 0xA3, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD7, 0xB7, /* 0x0C-0x0F */
+	0x00, 0x00, 0xF8, 0xEE, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0xDE, 0xB5, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0xD6, 0xD2, 0x00, 0x00, 0xF9, 0xD5, 0xE7, 0xBA, /* 0x18-0x1B */
+	0xEB, 0xD5, 0xD5, 0xF7, 0xEF, 0xE7, 0xE1, 0xBE, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFA, 0xAE, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD6, 0xE9, /* 0x24-0x27 */
+	0xD6, 0xEE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE7, 0xBB, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEC, 0xCB, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0xD5, 0xB3, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0xCE, 0xB4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0xFB, 0xA5, 0xE1, 0xEE, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0xF7, 0xA8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0xFB, 0xCE, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD8, 0xBD, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFB, 0xFD, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0xFC, 0xE9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0xCF, 0xB6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0xED, 0xC7, 0xEE, 0xAC, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0xCC, 0xDD, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0xF6, 0xA7, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0xFA, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0xF5, 0xA4, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0xFD, 0xDC, 0xED, 0xB3, 0xCE, 0xC9, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0xEF, 0xE8, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xE1, 0xBF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFA, 0xDB, /* 0xA8-0xAB */
+	0xCB, 0xE3, 0xF7, 0xA9, 0x00, 0x00, 0xFB, 0xA6, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDC, 0xB9, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF1, 0xC0, /* 0xB4-0xB7 */
+	0xED, 0xC8, 0xEF, 0xC3, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0xD6, 0xAD, 0x00, 0x00, 0x00, 0x00, 0xFD, 0xCE, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE8, 0xA1, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xFB, 0xF4, 0xD5, 0xA7, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0xF1, 0xF6, 0x00, 0x00, 0xE6, 0xD3, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0xCC, 0xDE, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xF8, 0xB2, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0xDC, 0xEB, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_71[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0xFD, 0xB6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xE5, 0xEA, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0xF1, 0xE0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0xDB, 0xCC, 0xDD, 0xCD, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0xD4, 0xC8, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0xD9, 0xED, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0xF5, 0xA5, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xE6, 0xFB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0xD4, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFD, 0xC8, /* 0x44-0x47 */
+	0x00, 0x00, 0xD6, 0xA1, 0xFD, 0xBF, 0x00, 0x00, /* 0x48-0x4B */
+	0xFC, 0xD3, 0x00, 0x00, 0xEF, 0xA1, 0x00, 0x00, /* 0x4C-0x4F */
+	0xE7, 0xBC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0xD1, 0xEE, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0xE6, 0xD5, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0xE9, 0xF2, 0x00, 0x00, 0xDF, 0xB0, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0xD8, 0xE0, 0xFC, 0xBA, 0xFD, 0xAF, 0xF0, 0xCE, /* 0x64-0x67 */
+	0x00, 0x00, 0xDB, 0xE1, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0xE5, 0xC9, 0x00, 0x00, 0xED, 0xB4, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0xE0, 0xC3, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0xE3, 0xD8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0xE9, 0xFB, 0xEA, 0xA8, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFD, 0xB7, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0xFB, 0xA7, 0x00, 0x00, /* 0x90-0x93 */
+	0xE9, 0xC2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0xFD, 0xF7, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xD9, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0xDC, 0xEC, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0xE8, 0xA2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0xE6, 0xF0, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xFD, 0xF8, 0xFD, 0xF9, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0xF6, 0xBF, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0xE7, 0xA7, 0x00, 0x00, 0xE6, 0xD7, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0xD4, 0xF3, 0xD4, 0xC9, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0xD6, 0xFA, 0x00, 0x00, /* 0xCC-0xCF */
+	0xD7, 0xF2, 0x00, 0x00, 0xE1, 0xC0, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xDB, 0xE2, 0xE6, 0xD8, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE7, 0xBD, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xF0, 0xCF, 0xF3, 0xBE, 0xE2, 0xAC, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0xF5, 0xB7, 0xE0, 0xF0, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFD, 0xB8, /* 0xF8-0xFB */
+	0xE3, 0xE8, 0x00, 0x00, 0xD4, 0xA7, 0xE8, 0xFC, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_72[512] = {
+	0xFA, 0xD2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0xF8, 0xEF, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0xD6, 0xD3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD5, 0xB4, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xF0, 0xD0, 0x00, 0x00, /* 0x28-0x2B */
+	0xF7, 0xF0, 0xEE, 0xB3, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xEA, 0xBA, 0x00, 0x00, 0xEA, 0xD3, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0xED, 0xC9, 0xDD, 0xAB, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xAC, 0xFD, 0xA1, /* 0x38-0x3B */
+	0x00, 0x00, 0xDF, 0xD0, 0xEC, 0xB3, 0x00, 0x00, /* 0x3C-0x3F */
+	0xDF, 0xD1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xED, 0xED, 0xF8, 0xB8, /* 0x44-0x47 */
+	0xF7, 0xFA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0xF8, 0xAB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0xF4, 0xE0, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0xD4, 0xBA, 0xE4, 0xB3, 0x00, 0x00, 0xE9, 0xDA, /* 0x58-0x5B */
+	0x00, 0x00, 0xDE, 0xB6, 0x00, 0x00, 0xD9, 0xBF, /* 0x5C-0x5F */
+	0x00, 0x00, 0xD9, 0xC0, 0xD6, 0xEF, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD9, 0xCC, /* 0x64-0x67 */
+	0x00, 0x00, 0xDA, 0xAA, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0xDF, 0xE5, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0xF7, 0xE5, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0xCC, 0xB2, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xDF, 0xF9, 0xD7, 0xE0, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0xD4, 0xBB, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFD, 0xFA, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0xCC, 0xB3, 0x00, 0x00, 0x00, 0x00, 0xDB, 0xF3, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0xDF, 0xD2, 0x00, 0x00, 0xCE, 0xCA, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xEE, 0xDA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0xE4, 0x00, 0x00, /* 0xCC-0xCF */
+	0xFB, 0xCF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCF, 0xB7, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xEE, 0xC3, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0xCE, 0xEA, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0xE2, 0xAD, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xD7, 0xE1, 0xFA, 0xF5, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0xD5, 0xC9, 0xF8, 0xAC, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_73[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0xD9, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xF3, 0xE9, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD8, 0xED, /* 0x18-0x1B */
+	0xE3, 0xC4, 0xF0, 0xF1, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0xE8, 0xE5, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0xE0, 0xFA, 0xEE, 0xC4, 0xD9, 0xDE, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0xEB, 0xA2, 0xEB, 0xA3, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0xFC, 0xC2, 0xEA, 0xBB, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0xE8, 0xAB, 0xDE, 0xE2, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0xED, 0xEF, 0x00, 0x00, 0xE8, 0xA3, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCF, 0xF1, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0xD4, 0xBC, 0x00, 0x00, 0xFC, 0xEA, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0xE7, 0xBE, 0x00, 0x00, 0xFC, 0xF2, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0xD6, 0xB4, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0xE2, 0xAE, 0x00, 0x00, 0xD3, 0xB7, 0xFA, 0xCC, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0xFA, 0xDC, 0x00, 0x00, 0xED, 0xB5, 0xE1, 0xE3, /* 0x84-0x87 */
+	0x00, 0x00, 0xE8, 0xAC, 0x00, 0x00, 0xE8, 0xDD, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0xEF, 0xE9, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0xF4, 0xBD, 0x00, 0x00, 0xCF, 0xB8, 0xE9, 0xDB, /* 0x94-0x97 */
+	0xD1, 0xAC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDA, 0xC7, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEB, 0xC9, /* 0xA4-0xA7 */
+	0x00, 0x00, 0xE8, 0xCC, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0xDE, 0xB7, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0xD6, 0xBC, 0xD3, 0xE5, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xFA, 0xDD, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0xDA, 0xD6, 0x00, 0x00, 0xCA, 0xB1, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xDA, 0xC8, 0xDF, 0xA6, 0x00, 0x00, /* 0xC8-0xCB */
+	0xF9, 0xB3, 0xF2, 0xD2, 0x00, 0x00, 0xCA, 0xC4, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0xCE, 0xCB, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xCD, 0xF5, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0xFD, 0xB0, 0xD5, 0xA8, 0x00, 0x00, /* 0xDC-0xDF */
+	0xF1, 0xC1, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xE9, /* 0xE0-0xE3 */
+	0xDC, 0xCA, 0xEC, 0xB4, 0xFA, 0xC0, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0xFB, 0xA8, 0xD0, 0xA8, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0xDA, 0xEC, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD9, 0xEE, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xE0, 0xFB, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0xEF, 0xEA, 0xFA, 0xDE, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_74[512] = {
+	0x00, 0x00, 0xE0, 0xC4, 0x00, 0x00, 0xCF, 0xB9, /* 0x00-0x03 */
+	0x00, 0x00, 0xD5, 0xCA, 0xD7, 0xE2, 0xE2, 0xAF, /* 0x04-0x07 */
+	0x00, 0x00, 0xD7, 0xB8, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE8, 0xCD, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF6, 0xDA, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0xEF, 0xA2, 0xE2, 0xDA, 0xF6, 0xFC, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0xFB, 0xD0, 0xD1, 0xAD, 0x00, 0x00, /* 0x24-0x27 */
+	0xCD, 0xE4, 0x00, 0x00, 0xD1, 0xAE, 0xDC, 0xED, /* 0x28-0x2B */
+	0xE8, 0xCE, 0x00, 0x00, 0xF0, 0xF9, 0xCE, 0xB5, /* 0x2C-0x2F */
+	0xE6, 0xFC, 0x00, 0x00, 0x00, 0x00, 0xD7, 0xFB, /* 0x30-0x33 */
+	0xD0, 0xD6, 0xDD, 0xF5, 0xF7, 0xF1, 0x00, 0x00, /* 0x34-0x37 */
+	0xF6, 0xFD, 0x00, 0x00, 0xDB, 0xF7, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFB, 0xEA, /* 0x3C-0x3F */
+	0xE9, 0xDC, 0xD9, 0xC1, 0x00, 0x00, 0xF5, 0xF2, /* 0x40-0x43 */
+	0xE0, 0xC5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEA, 0xD4, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0xF9, 0xC2, 0x00, 0x00, 0xEA, 0xBC, /* 0x54-0x57 */
+	0x00, 0x00, 0xD2, 0xC5, 0xFB, 0xD1, 0xE7, 0xC0, /* 0x58-0x5B */
+	0xEB, 0xA5, 0x00, 0x00, 0xDF, 0xFA, 0xE3, 0xA2, /* 0x5C-0x5F */
+	0xD7, 0xB9, 0x00, 0x00, 0xE9, 0xC3, 0x00, 0x00, /* 0x60-0x63 */
+	0xE8, 0xFD, 0xE8, 0xAF, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0xF2, 0xD3, 0xFB, 0xA9, 0xD8, 0xA5, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD5, 0xCB, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0xD0, 0xC8, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0xD1, 0xAF, 0xD7, 0xE3, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xC6, /* 0x84-0x87 */
+	0x00, 0x00, 0xD6, 0xA2, 0x00, 0x00, 0xED, 0xF0, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0xD7, 0xF3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0xFC, 0xD4, 0x00, 0x00, 0xDA, 0xD7, 0xCC, 0xDF, /* 0x9C-0x9F */
+	0x00, 0x00, 0xF2, 0xD4, 0x00, 0x00, 0xD1, 0xB0, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xCC, 0xE0, 0x00, 0x00, 0xDB, 0xFD, /* 0xA4-0xA7 */
+	0xF3, 0xBF, 0x00, 0x00, 0xF0, 0xD1, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0xFC, 0xBB, 0x00, 0x00, 0xE2, 0xB0, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xE6, 0xA5, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xE2, 0xDB, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0xDF, 0xDE, 0x00, 0x00, 0xE0, 0xC7, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0xF2, 0xEF, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0xCC, 0xE1, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD6, 0xEA, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xE7, 0xC2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xCE, 0xB6, 0x00, 0x00, 0xF3, 0xC0, 0x00, 0x00, /* 0xD8-0xDB */
+	0xCD, 0xFE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0xFB, 0xD2, 0x00, 0x00, 0xF8, 0xF8, 0xF7, 0xFB, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0xE8, 0xBF, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0xE8, 0xB7, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xED, 0xB6, /* 0xF4-0xF7 */
+};
+
+static unsigned char u2c_75[512] = {
+	0x00, 0x00, 0xDC, 0xBA, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0xCC, 0xB4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0xF1, 0xF7, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0xE8, 0xB8, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0xCA, 0xF6, 0x00, 0x00, 0xE4, 0xA4, 0xF4, 0xD6, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDF, 0xE6, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDF, 0xA7, /* 0x20-0x23 */
+	0x00, 0x00, 0xDF, 0xE7, 0xE1, 0xC1, 0x00, 0x00, /* 0x24-0x27 */
+	0xE9, 0xC4, 0x00, 0x00, 0x00, 0x00, 0xDC, 0xCB, /* 0x28-0x2B */
+	0xE9, 0xC5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xEF, 0xA3, 0xEB, 0xA6, 0xCB, 0xA3, 0xE3, 0xE9, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD1, 0xFB, /* 0x34-0x37 */
+	0xEF, 0xA4, 0x00, 0x00, 0xEF, 0xEB, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD0, 0xB4, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0xCD, 0xA3, 0x00, 0x00, 0x00, 0x00, 0xE8, 0xE6, /* 0x4C-0x4F */
+	0x00, 0x00, 0xEF, 0xA5, 0x00, 0x00, 0xD3, 0xCC, /* 0x50-0x53 */
+	0xDA, 0xED, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0xD7, 0xBA, 0x00, 0x00, 0xF2, 0xD5, /* 0x58-0x5B */
+	0xF5, 0xE5, 0xD9, 0xEF, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0xF9, 0xB4, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0xD5, 0xD4, 0xFD, 0xCF, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0xDB, 0xE3, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF1, 0xE1, /* 0x6C-0x6F */
+	0xEC, 0xB6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0xFB, 0xFE, 0xD3, 0xD7, 0x00, 0x00, /* 0x74-0x77 */
+	0xD1, 0xB1, 0x00, 0x00, 0xCB, 0xB1, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD1, 0xB2, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0xCB, 0xB2, 0xF1, 0xC2, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0xF4, 0xE1, 0xF9, 0xB5, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xC3, 0xE1, 0xC2, /* 0x8C-0x8F */
+	0x00, 0x00, 0xEB, 0xF7, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0xDF, 0xA8, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xCB, 0xCA, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE6, 0xB9, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0xF8, 0xDE, 0xF9, 0xAA, 0xCA, 0xF7, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xED, 0xB7, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xD3, 0xB8, 0xF2, 0xD6, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0xD4, 0xD9, 0xEE, 0xC5, 0xF2, 0xF0, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0xCA, 0xB2, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xDC, 0xBB, 0x00, 0x00, 0xF1, 0xF8, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0xEC, 0xB7, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xCA, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xF6, 0xC0, 0xFD, 0xDD, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xD4, 0xE3, 0xCC, 0xE2, 0x00, 0x00, 0xF7, 0xD4, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0xD7, 0xE5, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0xD3, 0xC3, 0x00, 0x00, 0xD8, 0xA6, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xF6, 0xC1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0xDD, 0xF6, 0x00, 0x00, /* 0xF8-0xFB */
+	0xCD, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_76[512] = {
+	0xE5, 0xDC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0xE5, 0xCB, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0xE1, 0xC4, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE8, 0xB0, /* 0x1C-0x1F */
+	0xF4, 0xB0, 0xF3, 0xEA, 0xDA, 0xEE, 0x00, 0x00, /* 0x20-0x23 */
+	0xD7, 0xBB, 0x00, 0x00, 0xE2, 0xB1, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD7, 0xAA, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0xD6, 0xFB, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0xE4, 0xDF, 0x00, 0x00, 0xCA, 0xD6, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0xEB, 0xA8, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0xDB, 0xFE, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0xF6, 0xC2, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0xEF, 0xBB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0xD4, 0xFD, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0xE0, 0xC8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0xE8, 0xB9, 0x00, 0x00, 0xEF, 0xA6, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0xCD, 0xA4, 0x00, 0x00, 0x00, 0x00, 0xD4, 0xF4, /* 0x78-0x7B */
+	0xDB, 0xA1, 0xDB, 0xDC, 0xDB, 0xDD, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0xEE, 0xDC, 0x00, 0x00, 0xCB, 0xCB, 0xFC, 0xD5, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0xCE, 0xEB, 0x00, 0x00, /* 0x8C-0x8F */
+	0xCD, 0xC1, 0x00, 0x00, 0x00, 0x00, 0xFB, 0xD3, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0xF9, 0xAB, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0xF5, 0xD4, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD9, 0xA9, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xDD, 0xDB, 0xCD, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0xDD, 0xCE, 0x00, 0x00, /* 0xC4-0xC7 */
+	0xE7, 0xC3, 0x00, 0x00, 0xEC, 0xCC, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0xF9, 0xEC, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0xCB, 0xCC, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xFC, /* 0xD8-0xDB */
+	0xD4, 0xA8, 0x00, 0x00, 0xED, 0xD3, 0xD8, 0xEF, /* 0xDC-0xDF */
+	0x00, 0x00, 0xF2, 0xD7, 0x00, 0x00, 0xCA, 0xF8, /* 0xE0-0xE3 */
+	0xDA, 0xEF, 0x00, 0x00, 0x00, 0x00, 0xD6, 0xD4, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0xD9, 0xCD, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0xD8, 0xEE, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xF2, 0xC1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xDF, 0xD3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0xDA, 0xF0, 0x00, 0x00, 0xE2, 0xEA, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_77[512] = {
+	0x00, 0x00, 0xE0, 0xFD, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0xD8, 0xF8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0xF7, 0xAF, 0xDA, 0xB6, 0x00, 0x00, 0xCA, 0xD7, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0xF2, 0xD8, 0x00, 0x00, /* 0x1C-0x1F */
+	0xD8, 0xF9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0xFA, 0xDF, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCF, 0xEF, /* 0x34-0x37 */
+	0xD9, 0xC2, 0x00, 0x00, 0xF0, 0xD2, 0x00, 0x00, /* 0x38-0x3B */
+	0xE4, 0xD1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0xF3, 0xB7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0xFA, 0xE0, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEF, 0xEC, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0xE2, 0xB2, 0x00, 0x00, 0xD4, 0xBD, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0xD9, 0xCE, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF4, 0xE2, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0xD4, 0xA9, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0xCD, 0xC2, 0xE7, 0xDA, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF2, 0xD9, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0xD9, 0xAA, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0xD8, 0xBE, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xDC, 0xAD, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0xE2, 0xEB, 0xD6, 0xFC, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0xCA, 0xF9, 0x00, 0x00, 0x00, 0x00, 0xD4, 0xDA, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF4, 0xD7, /* 0xB8-0xBB */
+	0xCC, 0xA1, 0x00, 0x00, 0x00, 0x00, 0xCF, 0xBA, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF5, 0xB8, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD9, 0xC3, /* 0xD8-0xDB */
+	0xD0, 0xE8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0xC5, 0xEB, 0xF8, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xF2, 0xB1, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0xCF, 0xBB, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0xD3, 0xAD, 0xE8, 0xE1, 0xCE, 0xEC, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xB4, /* 0xF0-0xF3 */
+};
+
+static unsigned char u2c_78[512] = {
+	0x00, 0x00, 0x00, 0x00, 0xDE, 0xE3, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0xDD, 0xF7, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0xF2, 0xB2, 0xF3, 0xF6, 0xF6, 0xDB, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0xD7, 0xFE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0xF8, 0xDF, 0x00, 0x00, /* 0x30-0x33 */
+	0xF7, 0xF2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0xD0, 0xA9, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE6, 0xDA, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0xF5, 0xA6, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD7, 0xBC, /* 0x68-0x6B */
+	0xCC, 0xE3, 0x00, 0x00, 0x00, 0x00, 0xE6, 0xDB, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0xDD, 0xDD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xD1, 0xB3, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEF, 0xED, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0xD6, 0xDE, 0xE4, 0xF4, 0xE1, 0xEF, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0xDD, 0xF8, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE8, 0xCF, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCA, 0xE5, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDC, 0xA1, /* 0xA4-0xA7 */
+	0x00, 0x00, 0xE0, 0xB5, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0xFC, 0xAC, 0xFC, 0xAD, /* 0xB8-0xBB */
+	0xD8, 0xA7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0xED, 0xB8, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xDB, 0xB6, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0xD6, 0xF0, 0xF3, 0xAF, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0xCD, 0xA5, 0x00, 0x00, /* 0xCC-0xCF */
+	0xDA, 0xF1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xD8, 0xA8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0xCC, 0xE4, 0x00, 0x00, 0x00, 0x00, 0xD1, 0xB4, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0xCA, 0xD8, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDA, 0xF2, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_79[512] = {
+	0x00, 0x00, 0xF5, 0xA7, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0xF5, 0xA8, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0xA6, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xD5, 0xEC, 0xD5, 0xF8, /* 0x28-0x2B */
+	0xDA, 0xF3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0xC6, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0xDE, 0xE4, 0x00, 0x00, /* 0x3C-0x3F */
+	0xDE, 0xE5, 0xD1, 0xB5, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD1, 0xB6, /* 0x44-0x47 */
+	0xD1, 0xB7, 0xF2, 0xB3, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0xE9, 0xDE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0xF0, 0xD3, 0xF2, 0xB4, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0xF0, 0xD4, 0xCB, 0xE4, /* 0x58-0x5B */
+	0xFB, 0xD4, 0xF5, 0xE6, 0xE3, 0xEA, 0x00, 0x00, /* 0x5C-0x5F */
+	0xDE, 0xE6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0xDF, 0xD4, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0xF8, 0xF9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0xF0, 0xAE, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0xD1, 0xB8, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD6, 0xDF, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xD0, 0xD7, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0xFC, 0xA1, 0xEF, 0xEE, 0xDC, 0xD8, /* 0x8C-0x8F */
+	0x00, 0x00, 0xE9, 0xDF, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xDD, 0xFD, 0xFB, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0xC9, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0xD6, 0xC9, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0xD4, 0xAA, 0x00, 0x00, 0xE5, 0xCC, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xE9, 0xE0, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0xD0, 0xD8, 0xFC, 0xA2, 0xD4, 0xBE, /* 0xBC-0xBF */
+	0xE2, 0xB3, 0xDE, 0xE7, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xDC, 0xBC, 0xD2, 0xB6, 0xF5, 0xD5, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0xCE, 0xA1, 0xF5, 0xA9, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xDD, 0xF9, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xDD, 0xFA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0xD5, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0xF6, 0xDF, 0x00, 0x00, 0xF2, 0xDA, 0xE4, 0xEB, /* 0xE4-0xE7 */
+	0x00, 0x00, 0xF2, 0xF1, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEC, 0xB9, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_7A[512] = {
+	0xFD, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0xE1, 0xAA, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0xCA, 0xD9, 0x00, 0x00, 0x00, 0x00, 0xEF, 0xEF, /* 0x08-0x0B */
+	0x00, 0x00, 0xF5, 0xAA, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0xEC, 0xF9, 0x00, 0x00, 0x00, 0x00, 0xF8, 0xAD, /* 0x14-0x17 */
+	0x00, 0x00, 0xF2, 0xC2, 0xF6, 0xC3, 0x00, 0x00, /* 0x18-0x1B */
+	0xD7, 0xD2, 0x00, 0x00, 0x00, 0x00, 0xF9, 0xA2, /* 0x1C-0x1F */
+	0xF0, 0xD6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0xF0, 0xFA, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0xF6, 0xE0, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xF3, 0xF2, 0xC3, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD4, 0xAB, /* 0x38-0x3B */
+	0xCA, 0xB3, 0xCD, 0xA6, 0x00, 0x00, 0xCD, 0xC3, /* 0x3C-0x3F */
+	0xCD, 0xDA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xD9, 0xCF, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0xF6, 0xC4, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0xEE, 0xDD, 0xE7, 0xC4, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xB4, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0xDF, 0xE2, 0xE7, 0xDB, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0xE8, 0xB1, 0x00, 0x00, 0xFC, 0xAE, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0xE5, 0xCD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0xFA, 0xEB, 0x00, 0x00, 0xCF, 0xBC, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0xCF, 0xE2, 0xCD, 0xF6, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0xEF, 0xF0, 0x00, 0x00, 0xF4, 0xBE, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xD4, 0xCD, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0xF3, 0xB8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0xE9, 0xA1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0xF2, 0xF2, 0xF3, 0xEB, /* 0x90-0x93 */
+	0x00, 0x00, 0xF0, 0xD7, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0xCF, 0xD7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCF, 0xDF, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0xE8, 0xC0, 0xE8, 0xC1, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0xCF, 0xE3, 0xE9, 0xA2, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0xD0, 0xAA, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xF3, 0xC1, 0xD0, 0xAB, 0x00, 0x00, 0xD4, 0xE4, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0xEF, 0xBC, 0xD8, 0xA1, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD9, 0xDF, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xF3, 0xD7, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0xDC, 0xBD, 0x00, 0x00, 0xCC, 0xE5, /* 0xDC-0xDF */
+	0xED, 0xF1, 0x00, 0x00, 0x00, 0x00, 0xF1, 0xE2, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xD4, 0xDB, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0xB5, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0xCA, 0xE6, 0x00, 0x00, 0xD3, 0xAE, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0xCC, 0xE6, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xF1, 0xD3, 0xF5, 0xE7, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCA, 0xDA, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_7B[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFB, 0xEE, /* 0x0C-0x0F */
+	0x00, 0x00, 0xE1, 0xC5, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0xDF, 0xE9, 0x00, 0x00, 0xEE, 0xDE, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0xF7, 0xC2, 0x00, 0x00, /* 0x1C-0x1F */
+	0xD8, 0xA2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0xDD, 0xAC, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0xF0, 0xAF, 0xD6, 0xBD, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0xE1, 0xAB, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xF9, 0xB6, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0xD4, 0xF5, 0x00, 0x00, 0xD0, 0xC9, /* 0x48-0x4B */
+	0xEF, 0xA7, 0xE2, 0xEC, 0x00, 0x00, 0xDB, 0xEA, /* 0x4C-0x4F */
+	0xCE, 0xCC, 0xF5, 0xE8, 0xF7, 0xD5, 0x00, 0x00, /* 0x50-0x53 */
+	0xD3, 0xCD, 0x00, 0x00, 0xF3, 0xFE, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0xD0, 0xB5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0xE0, 0xFE, 0x00, 0x00, 0xDF, 0xFB, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0xE6, 0xDD, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0xE8, 0xA4, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCB, 0xCD, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEF, 0xA8, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEE, 0xB4, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0xDA, 0xD8, 0xD1, 0xB9, 0x00, 0x00, 0xDF, 0xA9, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0xF3, 0xB0, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0xCC, 0xC4, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0xCE, 0xB7, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0xEF, 0xA9, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0xDF, 0xD5, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0xED, 0xD7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xEE, 0xC6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0xEF, 0xBD, 0xFC, 0xD6, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xDB, 0xF4, 0x00, 0x00, 0xEF, 0xAA, 0xF8, 0xB9, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xF5, 0xE9, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0xD9, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0xE1, 0xC6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0xD4, 0xBF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0xDE, 0xE8, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+};
+
+static unsigned char u2c_7C[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0xEA, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0xF3, 0xC2, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0xD3, 0xAF, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0xCA, 0xDB, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFC, 0xD7, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xED, 0xD8, 0xE1, 0xC7, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0xF4, 0xD8, 0xD6, 0xB3, 0xDD, 0xAD, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD5, 0xBE, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0xF1, 0xC3, 0xEE, 0xDF, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0xD6, 0xEB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0xF4, 0xD9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0xD7, 0xE6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDA, 0xB7, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDD, 0xFB, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0xDD, 0xCF, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0xD8, 0xA3, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0xDA, 0xD9, 0x00, 0x00, 0xF0, 0xD8, /* 0x94-0x97 */
+	0xEF, 0xC4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE1, 0xD8, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xF1, 0xD4, 0x00, 0x00, 0xED, 0xF2, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0xD5, 0xDB, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0xD5, 0xDC, 0xF3, 0xC4, 0xCB, 0xD7, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xE2, 0xB6, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0xEF, 0xF1, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0xFB, 0xD5, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0xD3, 0xD8, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0xDD, 0xD0, 0xF0, 0xD9, /* 0xDC-0xDF */
+	0xCB, 0xB3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD5, 0xDD, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCD, 0xA7, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0xD0, 0xAC, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_7D[512] = {
+	0xD1, 0xBA, 0x00, 0x00, 0xF1, 0xC4, 0x00, 0x00, /* 0x00-0x03 */
+	0xE5, 0xB3, 0xFB, 0xF5, 0xE9, 0xE1, 0xFD, 0xE0, /* 0x04-0x07 */
+	0xFC, 0xBC, 0x00, 0x00, 0xDA, 0xA2, 0xDA, 0xA3, /* 0x08-0x0B */
+	0x00, 0x00, 0xD2, 0xA1, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0xD2, 0xEF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0xE2, 0xED, 0x00, 0x00, 0x00, 0x00, 0xDE, 0xE9, /* 0x14-0x17 */
+	0xCE, 0xDC, 0xF2, 0xB5, 0xD0, 0xE4, 0xDD, 0xD1, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0xE1, 0xC8, 0xDB, 0xB7, 0xDF, 0xE3, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xED, 0xB9, /* 0x28-0x2B */
+	0xF1, 0xC5, 0x00, 0x00, 0xF3, 0xCF, 0xD7, 0xAB, /* 0x2C-0x2F */
+	0xE1, 0xAC, 0x00, 0x00, 0x00, 0x00, 0xE3, 0xEB, /* 0x30-0x33 */
+	0x00, 0x00, 0xEE, 0xC7, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0xE1, 0xC9, 0xCA, 0xFA, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0xF0, 0xFB, 0xFA, 0xE1, /* 0x40-0x43 */
+	0xF0, 0xDA, 0xCC, 0xE7, 0xDA, 0xF4, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0xCC, 0xBF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0xCE, 0xED, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0xD5, 0xA9, 0xFA, 0xE2, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0xD0, 0xE5, 0x00, 0x00, /* 0x64-0x67 */
+	0xEB, 0xD6, 0x00, 0x00, 0xEC, 0xDF, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0xDF, 0xFC, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0xF7, 0xD6, 0xDE, 0xEA, 0xCB, 0xB4, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0xEF, 0xBE, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0xCC, 0xB5, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCF, 0xBD, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0xEF, 0xF2, 0xE2, 0xB7, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCC, 0xE8, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0xF0, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0xD6, 0xE0, 0x00, 0x00, 0xF1, 0xC6, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0xE2, 0xB8, 0xEB, 0xAB, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0xCB, 0xB5, 0xD8, 0xD1, 0x00, 0x00, /* 0xB0-0xB3 */
+	0xF4, 0xCE, 0xF3, 0xF7, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xD7, 0xC6, 0x00, 0x00, 0xD1, 0xBB, 0xF7, 0xAA, /* 0xB8-0xBB */
+	0x00, 0x00, 0xED, 0xCA, 0xD7, 0xD3, 0xD8, 0xFA, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF6, 0xC5, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0xD1, 0xCC, 0xDD, 0xFC, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0xDF, 0xFD, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xF9, 0xE5, 0x00, 0x00, 0xE0, 0xCA, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0xF2, 0xFD, 0xD3, 0xB0, 0x00, 0x00, /* 0xDC-0xDF */
+	0xF4, 0xF3, 0xDA, 0xC9, 0x00, 0x00, 0xE6, 0xDE, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xF8, 0xBA, 0xE8, 0xD0, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0xD8, 0xFB, 0x00, 0x00, 0x00, 0x00, 0xEA, 0xD5, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xD6, 0xA3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF6, 0xC6, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_7E[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xF2, 0xDB, 0xE4, 0xFC, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0xE8, 0xB2, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDA, 0xDA, /* 0x18-0x1B */
+	0x00, 0x00, 0xF2, 0xDC, 0xFB, 0xD6, 0xE9, 0xB2, /* 0x1C-0x1F */
+	0x00, 0x00, 0xEE, 0xAD, 0x00, 0x00, 0xFA, 0xE3, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDC, 0xEE, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0xF5, 0xEA, 0xE6, 0xE0, /* 0x2C-0x2F */
+	0x00, 0x00, 0xF0, 0xFD, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD7, 0xAC, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0xF5, 0xC5, 0xEE, 0xE0, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0xDB, 0xE5, 0x00, 0x00, 0xDD, 0xDE, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xD9, 0xF0, 0xE9, 0xA3, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0xF1, 0xF9, 0x00, 0x00, /* 0x50-0x53 */
+	0xF2, 0xC4, 0xE0, 0xCB, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xA4, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0xE2, 0xB9, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0xE3, 0xB1, 0xFC, 0xEB, 0xCD, 0xA8, /* 0x68-0x6B */
+	0x00, 0x00, 0xCC, 0xB6, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0xF0, 0xDB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0xE6, 0xBA, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0xCD, 0xA9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0xF3, 0xC3, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0xE1, 0xD9, 0x00, 0x00, 0x00, 0x00, 0xEF, 0xAB, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE7, 0xC5, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0xE9, 0x00, 0x00, /* 0x94-0x97 */
+	0xF3, 0xC5, 0x00, 0x00, 0x00, 0x00, 0xD4, 0xC0, /* 0x98-0x9B */
+	0xD5, 0xBF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+};
+
+static unsigned char u2c_7F[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0xDD, 0xAE, 0x00, 0x00, /* 0x34-0x37 */
+	0xF9, 0xFC, 0x00, 0x00, 0xCC, 0xC0, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0xE5, 0xA2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0xCE, 0xB8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0xD8, 0xD2, 0xF9, 0xD6, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0xF1, 0xAA, 0xCE, 0xD1, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0xF6, 0xC7, 0x00, 0x00, /* 0x6C-0x6F */
+	0xDB, 0xEB, 0x00, 0x00, 0xDF, 0xFE, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0xD8, 0xE1, 0x00, 0x00, 0xF7, 0xF3, /* 0x74-0x77 */
+	0x00, 0x00, 0xD7, 0xE7, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0xD4, 0xFE, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0xD1, 0xBC, 0x00, 0x00, 0xE5, 0xCF, 0x00, 0x00, /* 0x88-0x8B */
+	0xCB, 0xB6, 0x00, 0x00, 0xDA, 0xB8, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0xCD, 0xC4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0xD6, 0xBE, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0xBA, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xCF, 0xD8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xE0, 0xCC, 0xEB, 0xF9, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0xFD, 0xFD, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xD7, 0xE8, 0xCB, 0xD8, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0xE9, 0xE2, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0xE8, 0xBA, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xE3, 0xC7, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0xEC, 0xCD, 0x00, 0x00, /* 0xC8-0xCB */
+	0xEC, 0xCE, 0x00, 0x00, 0xD6, 0xBF, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0xA7, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xDF, 0xD6, 0xFD, 0xE8, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEE, 0xE1, /* 0xDC-0xDF */
+	0xF6, 0xA8, 0xDD, 0xFD, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0xF8, 0xBB, 0x00, 0x00, 0xE8, 0xD1, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0xF9, 0xD7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xCE, 0xEE, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0xEC, 0xCF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_80[512] = {
+	0xE9, 0xA5, 0xD6, 0xD5, 0x00, 0x00, 0xCD, 0xC5, /* 0x00-0x03 */
+	0x00, 0x00, 0xED, 0xBA, 0xD1, 0xBD, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xCF, 0xBE, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0xEC, 0xBB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0xD2, 0xB1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0xCC, 0xE9, 0x00, 0x00, 0xD9, 0xC4, /* 0x14-0x17 */
+	0xE9, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0xD1, 0xBE, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEC, 0xBC, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xAD, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0xF7, 0xB0, 0x00, 0x00, 0xCC, 0xEA, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD3, 0xC4, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xD6, 0xC0, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0xD6, 0xFD, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xA1, 0x00, 0x00, /* 0x54-0x57 */
+	0xDE, 0xBD, 0x00, 0x00, 0xF6, 0xA9, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0xDA, 0xA4, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD6, 0xA4, /* 0x6C-0x6F */
+	0xF5, 0xC6, 0x00, 0x00, 0xE1, 0xA2, 0xE9, 0xC6, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF2, 0xC5, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0xF4, 0xE9, 0xD6, 0xEC, 0xEB, 0xD3, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0xEC, 0xBD, 0xE2, 0xDC, 0xDE, 0xEB, 0xF0, 0xDC, /* 0x84-0x87 */
+	0x00, 0x00, 0xEB, 0xBF, 0x00, 0x00, 0xD7, 0xCE, /* 0x88-0x8B */
+	0xD1, 0xBF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0xF5, 0xAB, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF9, 0xFD, /* 0x98-0x9B */
+	0x00, 0x00, 0xCA, 0xDC, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0xCD, 0xC6, 0xF2, 0xB6, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xDD, 0xFE, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0xCC, 0xB7, 0xDB, 0xB8, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD0, 0xE9, /* 0xAC-0xAF */
+	0x00, 0x00, 0xCE, 0xDD, 0xEB, 0xC0, 0x00, 0x00, /* 0xB0-0xB3 */
+	0xFD, 0xA2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0xF8, 0xCB, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEA, 0xD6, /* 0xC0-0xC3 */
+	0xF1, 0xB0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0xDB, 0xCE, 0x00, 0x00, 0xF7, 0xC3, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0xDB, 0xCF, 0xCB, 0xA4, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0xF8, 0xE0, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0xFB, 0xD7, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0xEB, 0xCA, 0xE0, 0xA1, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0xCE, 0xCD, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xD4, 0xDC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xFD, 0xD8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0xD2, 0xF6, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_81[512] = {
+	0x00, 0x00, 0x00, 0x00, 0xF2, 0xB7, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0xFA, 0xF6, 0xF6, 0xAA, 0xFA, 0xF7, /* 0x04-0x07 */
+	0xD8, 0xE6, 0x00, 0x00, 0xF4, 0xB1, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0xE8, 0xD2, 0x00, 0x00, 0xCA, 0xC5, 0xCC, 0xEB, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xEE, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0xE2, 0xBB, 0x00, 0x00, 0xF7, 0xAD, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF8, 0xE1, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0xF3, 0xEC, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0xDE, 0xA1, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xFD, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0xEC, 0x00, 0x00, /* 0x4C-0x4F */
+	0xDD, 0xAF, 0xDD, 0xB0, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0xCB, 0xB7, 0xE8, 0xD3, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0xE1, 0xA3, 0xD2, 0xE0, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0xFE, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0xE9, 0xA6, 0xCB, 0xF2, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0xED, 0xF3, 0xDC, 0xD9, 0xE0, 0xCD, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF7, 0xDA, /* 0x7C-0x7F */
+	
+	0xDB, 0xB9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0xCC, 0xAE, 0x00, 0x00, 0xDA, 0xDB, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCD, 0xC7, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0xDD, 0xB1, 0x00, 0x00, /* 0x98-0x9B */
+	0xD8, 0xAF, 0xE3, 0xA3, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0xCE, 0xEF, 0x00, 0x00, 0x00, 0x00, 0xF2, 0xF3, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xF8, 0xB3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xCE, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xF5, 0xFD, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0xEB, 0xEC, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0xD3, 0xC5, 0xFC, 0xEC, 0xD2, 0xDB, /* 0xBC-0xBF */
+	0xD4, 0xEB, 0x00, 0x00, 0xDE, 0xA2, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xE6, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0xF0, 0xB0, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xD5, 0xC4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xED, 0xF4, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, 0xED, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xE8, 0xC2, 0x00, 0x00, 0xED, 0xF5, /* 0xE4-0xE7 */
+	0xD7, 0xFC, 0x00, 0x00, 0xED, 0xBB, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0xF6, 0xAB, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF2, 0xB8, /* 0xF0-0xF3 */
+	0xF6, 0xC8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0xD3, 0xE6, 0xF2, 0xDD, /* 0xF8-0xFB */
+	0xCF, 0xBF, 0x00, 0x00, 0xEB, 0xAC, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_82[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0xCF, 0xC0, 0x00, 0x00, 0xE6, 0xA8, /* 0x04-0x07 */
+	0xFD, 0xE9, 0x00, 0x00, 0xCF, 0xC1, 0x00, 0x00, /* 0x08-0x0B */
+	0xE0, 0xDF, 0xDE, 0xEC, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0xA2, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF4, 0xBF, /* 0x18-0x1B */
+	0xE2, 0xEF, 0x00, 0x00, 0xD9, 0xF1, 0xF1, 0xC7, /* 0x1C-0x1F */
+	0x00, 0x00, 0xCB, 0xB8, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xF9, 0xFE, 0xDB, 0xBA, /* 0x28-0x2B */
+	0xDA, 0xF5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0xF6, 0xEC, 0xDA, 0xDC, 0xFA, 0xE4, /* 0x34-0x37 */
+	0x00, 0x00, 0xE0, 0xCF, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0xDD, 0xB2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0xE6, 0xA9, 0x00, 0x00, 0xEF, 0xF3, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0xF3, 0xED, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0xEB, 0xFA, 0x00, 0x00, 0xF9, 0xE6, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0xCA, 0xDD, 0xD5, 0xDE, /* 0x6C-0x6F */
+	0x00, 0x00, 0xCA, 0xDE, 0xDF, 0xE4, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0xFD, 0x00, 0x00, /* 0x74-0x77 */
+	0xF5, 0xAC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0xF5, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE9, 0xE3, /* 0x88-0x8B */
+	0x00, 0x00, 0xED, 0xCB, 0xCF, 0xE4, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0xD8, 0xD3, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0xDD, 0xB3, 0xD4, 0xEC, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0xF2, 0xB9, 0x00, 0x00, 0xDF, 0xB7, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xCB, 0xCE, 0xFB, 0xD8, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0xD0, 0xD9, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0xDD, 0xD2, 0xF7, 0xF4, 0xE7, 0xDC, 0xE4, 0xA5, /* 0xAC-0xAF */
+	0x00, 0x00, 0xFC, 0xA3, 0x00, 0x00, 0xDB, 0xBB, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF2, 0xBA, /* 0xB4-0xB7 */
+	0xE9, 0xFD, 0xD0, 0xCA, 0x00, 0x00, 0xF5, 0xD6, /* 0xB8-0xBB */
+	0xD9, 0xC5, 0xE4, 0xB4, 0x00, 0x00, 0xED, 0xA7, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0xEA, 0xBD, 0xE6, 0xFE, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xF7, 0xC4, 0xF5, 0xAD, 0x00, 0x00, 0xD9, 0xE0, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCA, 0xB4, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0xF8, 0xE2, 0xCF, 0xC2, /* 0xDC-0xDF */
+	0x00, 0x00, 0xEC, 0xBE, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xE5, 0xB4, 0xCD, 0xC8, 0xEE, 0xC8, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0xE7, 0xC8, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0xCD, 0xC9, 0xF9, 0xB7, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_83[512] = {
+	0x00, 0x00, 0xF1, 0xE8, 0xD9, 0xF2, 0xDB, 0xF5, /* 0x00-0x03 */
+	0xCA, 0xB5, 0xD9, 0xC6, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xD8, 0xC9, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD9, 0xAB, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0xED, 0xBC, 0x00, 0x00, 0x00, 0x00, 0xD8, 0xD4, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDC, 0xDA, /* 0x2C-0x2F */
+	0x00, 0x00, 0xE2, 0xBC, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0xFC, 0xED, 0xEC, 0xE0, 0xD2, 0xFE, 0x00, 0x00, /* 0x34-0x37 */
+	0xE9, 0xC7, 0xE6, 0xAA, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0xE2, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFA, 0xBB, /* 0x44-0x47 */
+	0x00, 0x00, 0xF5, 0xAE, 0xFB, 0xAA, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEC, 0xFB, /* 0x4C-0x4F */
+	0x00, 0x00, 0xEC, 0xBF, 0xFC, 0xD8, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD4, 0xE5, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF9, 0xC3, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEE, 0xE2, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0xD7, 0xE9, 0xED, 0xF6, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0xDE, 0xED, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0xCC, 0xEC, 0x00, 0x00, /* 0x94-0x97 */
+	0xE3, 0xEE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0xE8, 0xD4, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0xFA, 0xF8, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0xDD, 0xB4, 0xE4, 0xB5, 0xD8, 0xB0, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0xD8, 0xD5, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0xF4, 0xEA, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xCE, 0xB9, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xD6, 0xE1, 0xCF, 0xD2, 0x00, 0x00, /* 0xC8-0xCB */
+	0xD0, 0xB6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCE, 0xA2, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0xF3, 0xEE, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0xF3, 0xF8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0xDC, 0xCC, 0x00, 0x00, 0xD0, 0xCB, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFC, 0xA4, /* 0xEC-0xEF */
+	0xCD, 0xCA, 0xD7, 0xD4, 0xDE, 0xA3, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xE4, 0xE0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xEE, 0xC9, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0xE2, 0xDD, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_84[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF5, 0xFE, /* 0x00-0x03 */
+	0xD4, 0xAC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xD5, 0xD1, 0x00, 0x00, /* 0x08-0x0B */
+	0xD8, 0xF0, 0xF8, 0xC3, 0xEA, 0xD7, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0xF5, 0xD7, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0xD8, 0xBF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0xFD, 0xC0, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0xEB, 0xAD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0xD5, 0xAA, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0xE7, 0xA8, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEE, 0xCA, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCA, 0xE7, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0xF8, 0xE3, 0x00, 0x00, 0xD4, 0xDD, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0xEA, 0xD8, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFB, 0xD9, /* 0x68-0x6B */
+	0xED, 0xF7, 0x00, 0x00, 0x00, 0x00, 0xE5, 0xB5, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0xD0, 0xAD, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0xF1, 0xF1, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0xE2, 0xBD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0xE3, 0xC8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0xD9, 0xD5, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0xDF, 0xAA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0xDB, 0xBC, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0xF8, 0xE4, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xF1, 0xFA, 0x00, 0x00, 0x00, 0x00, 0xE5, 0xB6, /* 0xB8-0xBB */
+	0xF3, 0xEF, 0x00, 0x00, 0x00, 0x00, 0xFB, 0xDA, /* 0xBC-0xBF */
+	0xE1, 0xE0, 0x00, 0x00, 0xD9, 0xAC, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xF5, 0xEB, 0x00, 0x00, 0xE0, 0xB6, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xE9, 0xC8, 0x00, 0x00, 0xCB, 0xCF, /* 0xC8-0xCB */
+	0x00, 0x00, 0xE3, 0xC9, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0xDE, 0xEE, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0xBE, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0xDC, 0xEF, 0x00, 0x00, 0xD6, 0xA5, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xE2, 0xF1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0xD6, 0xFE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_85[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0xD9, 0xA1, 0x00, 0x00, 0xD8, 0xC0, /* 0x10-0x13 */
+	0xDC, 0xDB, 0x00, 0x00, 0x00, 0x00, 0xED, 0xBD, /* 0x14-0x17 */
+	0xDF, 0xB8, 0x00, 0x00, 0xEA, 0xA5, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0xD7, 0xAD, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0xF3, 0xF9, 0x00, 0x00, 0xED, 0xF8, /* 0x20-0x23 */
+	0x00, 0x00, 0xF5, 0xC7, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0xE1, 0xCA, 0xEB, 0xE3, 0x00, 0x00, 0xF2, 0xDE, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0xF8, 0xCC, 0x00, 0x00, 0xEA, 0xD9, /* 0x3C-0x3F */
+	0x00, 0x00, 0xD3, 0xC6, 0x00, 0x00, 0xDB, 0xE6, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0xF5, 0xAF, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0xCE, 0xF0, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE9, 0xFE, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0xFB, 0xB6, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xF2, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0xCF, 0xF2, 0xF7, 0xB9, 0xD9, 0xF3, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0xE1, 0xCB, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0xDA, 0xDD, 0x00, 0x00, 0x00, 0x00, 0xDA, 0xB9, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEB, 0xFB, /* 0x8C-0x8F */
+	0x00, 0x00, 0xCB, 0xB9, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0xED, 0xF9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xE0, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0xF4, 0xC0, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xFD, 0xBC, 0xDF, 0xB1, 0xE3, 0xEF, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xA3, /* 0xAC-0xAF */
+	0xFD, 0xB9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0xF0, 0xB1, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0xCD, 0xCB, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xED, 0xBE, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0xD5, 0xC0, 0xE3, 0xF0, 0xED, 0xFA, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xE9, 0xE4, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0xD5, 0xED, 0xE7, 0xDD, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0xD4, 0xF6, 0xE5, 0xB7, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0xDB, 0xE7, 0xE2, 0xBF, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEE, 0xCB, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0xD7, 0xF4, 0xF0, 0xDD, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCE, 0xAB, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_86[512] = {
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0xDE, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0xD6, 0xD6, 0xE1, 0xCC, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xE8, 0xB3, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xEE, 0xDC, 0xA2, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0xD0, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0xD5, 0xB5, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD5, 0xA1, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0xFB, 0xDB, 0x00, 0x00, /* 0x4C-0x4F */
+	0xF9, 0xCB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0xCB, 0xF3, 0xF4, 0xA5, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFA, 0xC8, /* 0x58-0x5B */
+	0xD6, 0xD7, 0x00, 0x00, 0xE9, 0xE5, 0xFB, 0xDC, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFD, 0xD0, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0xFB, 0xF6, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0xDA, 0xA5, 0x00, 0x00, /* 0x88-0x8B */
+	0xDB, 0xBD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEC, 0xE2, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCD, 0xF7, /* 0xA0-0xA3 */
+	0xF0, 0xDE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0xF6, 0xC9, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDE, 0xEF, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD3, 0xB1, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xFC, 0xEE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xE8, 0xC3, 0x00, 0x00, 0xF1, 0xC8, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCE, 0xF1, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0xF9, 0xED, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0xF2, 0xF4, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0xB6, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_87[512] = {
+	0xF5, 0xB9, 0x00, 0x00, 0xDC, 0xF0, 0xE3, 0xF1, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0xE8, 0xA5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0xF2, 0xBB, 0x00, 0x00, 0xDE, 0xA4, 0x00, 0x00, /* 0x18-0x1B */
+	0xDA, 0xCC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0xCA, 0xE9, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0xE3, 0xDA, 0x00, 0x00, 0xFC, 0xD9, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEA, 0xDA, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0xF9, 0xC4, 0x00, 0x00, /* 0x64-0x67 */
+	0xE3, 0xA4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0xFB, 0xDD, 0x00, 0x00, 0xEF, 0xCA, 0x00, 0x00, /* 0x74-0x77 */
+	0xE8, 0xC4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0xD5, 0xCC, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0xEB, 0xD7, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD9, 0xAD, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0xFB, 0xAB, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD3, 0xD9, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0xD5, 0xA2, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xF6, 0xDE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0xDA, 0xF6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0xE0, 0xD1, 0x00, 0x00, 0x00, 0x00, 0xE9, 0xA8, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0xF5, 0xF9, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xFA, 0xAF, 0x00, 0x00, 0xEB, 0xFC, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0xEA, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_88[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0xE3, 0xB2, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD5, 0xC5, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0xF1, 0xE3, 0xD5, 0xEE, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0xCD, 0xCC, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0xED, 0xD9, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD8, 0xC1, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0xFA, 0xEC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xF1, 0xEB, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0xFA, 0xBC, 0xE6, 0xE2, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0xFA, 0xE5, 0xE2, 0xFA, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCA, 0xB6, /* 0x54-0x57 */
+	0x00, 0x00, 0xE4, 0xB7, 0x00, 0x00, 0xEA, 0xDB, /* 0x58-0x5B */
+	0x00, 0x00, 0xF5, 0xFA, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0xFB, 0xAC, 0xCF, 0xC3, 0xEB, 0xFD, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0xF8, 0xFA, 0x00, 0x00, 0x00, 0x00, 0xDF, 0xB9, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0xE1, 0xF1, 0x00, 0x00, 0xD2, 0xA4, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF5, 0xFB, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0xD0, 0xDA, 0xD0, 0xDB, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xEA, 0xBE, 0xD9, 0xB1, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0xCA, 0xB7, 0x00, 0x00, 0x00, 0x00, 0xD3, 0xE7, /* 0x88-0x8B */
+	0x00, 0x00, 0xF8, 0xE5, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0xD3, 0xB2, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0xC0, 0xF2, 0xDF, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0xCD, 0xE5, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF9, 0xAC, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0xCD, 0xCD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0xEE, 0xAE, 0xD6, 0xAE, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD7, 0xEA, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xE7, 0xE0, 0xEB, 0xAE, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xCF, 0xD9, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0xDC, 0xCD, 0xED, 0xFB, 0x00, 0x00, 0xDE, 0xF0, /* 0xDC-0xDF */
+	0x00, 0x00, 0xD7, 0xEB, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xDE, 0xA5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDF, 0xD7, /* 0xF0-0xF3 */
+	0xDB, 0xD0, 0xDB, 0xD1, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xD5, 0xA3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0xF0, 0xB2, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_89[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDC, 0xDC, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0xCA, 0xE8, 0x00, 0x00, 0xF8, 0xE6, 0xDC, 0xCE, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0xEA, 0xDC, 0xDB, 0xD2, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0xE9, 0xB3, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xF7, 0xDB, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0xA8, 0x00, 0x00, /* 0x34-0x37 */
+	0xD7, 0xAE, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xE1, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0xCB, 0xBA, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0xE5, 0xD1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD0, 0xDC, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0xD5, 0xC1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0xD8, 0xCA, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0xA9, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xA4, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xE9, 0xA9, 0x00, 0x00, 0xD3, 0xC7, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0xDC, 0xDD, 0xF8, 0xAE, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCC, 0xB8, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD0, 0xAE, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD8, 0xF2, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0xCA, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0xCC, 0xAF, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0xD4, 0xAD, 0xF6, 0xD1, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0xD0, 0xCC, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0xCA, 0xC6, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0xD5, 0xC2, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0xCE, 0xBA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0xCA, 0xC7, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFA, 0xB0, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xDF, 0xD8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xF5, 0xBA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_8A[512] = {
+	0xE5, 0xEB, 0x00, 0x00, 0xEF, 0xF4, 0xDD, 0xB5, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0xCD, 0xAA, 0x00, 0x00, 0xE3, 0xF2, 0x00, 0x00, /* 0x08-0x0B */
+	0xFB, 0xF7, 0x00, 0x00, 0xF7, 0xD0, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFD, 0xBA, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xFD, 0xE1, 0xF6, 0xFE, /* 0x14-0x17 */
+	0xD1, 0xC0, 0x00, 0x00, 0x00, 0x00, 0xE8, 0xC5, /* 0x18-0x1B */
+	0x00, 0x00, 0xE4, 0xB8, 0x00, 0x00, 0xE1, 0xE8, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCC, 0xC1, /* 0x20-0x23 */
+	0x00, 0x00, 0xD2, 0xED, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xDB, 0xBE, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0xE0, 0xE2, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0xFA, 0xC9, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0xE1, 0xCD, 0x00, 0x00, 0xCA, 0xB8, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xF2, 0xE0, 0xF1, 0xC9, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0xDE, 0xF1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0xF0, 0xDF, 0xF8, 0xC4, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEE, 0xCC, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0xDE, 0xF2, 0x00, 0x00, /* 0x5C-0x5F */
+	0xE7, 0xC9, 0x00, 0x00, 0xE2, 0xF3, 0xE7, 0xE1, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0xCB, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0xE3, 0xCC, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0xCF, 0xF8, 0xEF, 0xAC, 0x00, 0x00, /* 0x6C-0x6F */
+	0xFD, 0xFE, 0xFC, 0xA5, 0xFA, 0xB1, 0xDF, 0xD9, /* 0x70-0x73 */
+	0x00, 0x00, 0xE0, 0xD2, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0xF4, 0xDA, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0xF1, 0xCA, 0x00, 0x00, 0xCE, 0xA3, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0xF2, 0xBC, 0xEC, 0xE3, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xA5, /* 0x90-0x93 */
+	0x00, 0x00, 0xF7, 0xAB, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0xEB, 0xAF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xDE, 0x00, 0x00, /* 0x9C-0x9F */
+	0xE1, 0xA4, 0xCD, 0xAB, 0x00, 0x00, 0xD9, 0xF4, /* 0xA0-0xA3 */
+	0xE8, 0xA6, 0xCD, 0xCE, 0xE1, 0xE9, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xFC, 0xEF, 0x00, 0x00, 0xE0, 0xE3, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0xE2, 0xC1, 0x00, 0x00, 0xCE, 0xA4, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xDE, 0xA6, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0xEB, 0xFE, 0x00, 0x00, 0xEB, 0xDD, 0xF0, 0xE0, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0xF4, 0xDB, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xE2, 0xF4, 0x00, 0x00, 0x00, 0x00, 0xD3, 0xC8, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF4, 0xEB, /* 0xC8-0xCB */
+	0x00, 0x00, 0xEE, 0xB5, 0x00, 0x00, 0xF5, 0xD8, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0xD5, 0xDF, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0xD6, 0xE5, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEB, 0xB0, /* 0xD8-0xDB */
+	0xF4, 0xE3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0xE3, 0xCD, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0xF4, 0xF4, 0xFA, 0xB2, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0xEF, 0xF5, 0xCA, 0xDF, /* 0xE8-0xEB */
+	0x00, 0x00, 0xEB, 0xB1, 0xED, 0xBF, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0xFD, 0xC9, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0xA6, 0xF9, 0xA4, /* 0xF4-0xF7 */
+	0xF0, 0xB3, 0x00, 0x00, 0xE5, 0xEC, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0xD1, 0xE7, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_8B[512] = {
+	0xD9, 0xC7, 0xE4, 0xD7, 0xEA, 0xDD, 0x00, 0x00, /* 0x00-0x03 */
+	0xD4, 0xF7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0xDA, 0xBA, 0x00, 0x00, /* 0x0C-0x0F */
+	0xDA, 0xCD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0xF9, 0xCC, 0x00, 0x00, 0xE1, 0xDA, 0xDB, 0xBF, /* 0x14-0x17 */
+	0x00, 0x00, 0xCC, 0xC5, 0xEC, 0xD0, 0xCB, 0xBB, /* 0x18-0x1B */
+	0x00, 0x00, 0xDE, 0xF3, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0xE9, 0xAA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0xD9, 0xC8, 0x00, 0x00, 0x00, 0x00, 0xEE, 0xE3, /* 0x28-0x2B */
+	0xD7, 0xBD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCF, 0xC4, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0xD0, 0xCD, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0xFC, 0xA6, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0xF1, 0xFB, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0xFD, 0xD2, 0xD1, 0xC1, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0xE3, 0xDB, 0x00, 0x00, 0xD3, 0xC9, 0x00, 0x00, /* 0x58-0x5B */
+	0xDC, 0xCF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0xCC, 0xED, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0xDE, 0xA7, 0x00, 0x00, 0x00, 0x00, 0xE6, 0xBB, /* 0x6C-0x6F */
+	0xEC, 0xA1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0xCC, 0xB9, 0x00, 0x00, 0x00, 0x00, 0xFB, 0xDE, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0xE7, 0xE2, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xD4, 0xC1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0xDC, 0xA8, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0xE2, 0xC2, 0x00, 0x00, 0xF3, 0xD8, 0xE5, 0xD3, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0xF3, 0xD9, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0xF3, 0xC6, 0x00, 0x00, /* 0x98-0x9B */
+};
+
+static unsigned char u2c_8C[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCD, 0xDB, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCD, 0xAC, /* 0x3C-0x3F */
+	0x00, 0x00, 0xFC, 0xC3, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xD4, 0xE7, 0x00, 0x00, /* 0x44-0x47 */
+	0xD1, 0xC2, 0x00, 0x00, 0xF9, 0xA5, 0x00, 0x00, /* 0x48-0x4B */
+	0xE8, 0xD5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0xE3, 0xCE, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0xD4, 0xCA, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0xDF, 0xDA, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0xFB, 0xDF, 0xE7, 0xE3, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0xF8, 0xFB, 0xE3, 0xCF, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0xF5, 0xB0, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0xD8, 0xE7, 0x00, 0x00, /* 0x88-0x8B */
+	0xD9, 0xC9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0xF8, 0xAF, 0xEF, 0xF6, 0x00, 0x00, /* 0x9C-0x9F */
+	0xDD, 0xB6, 0xEE, 0xAF, 0xCD, 0xF8, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDE, 0xB8, /* 0xA4-0xA7 */
+	0xFC, 0xA7, 0xF7, 0xFC, 0xF7, 0xB1, 0xCE, 0xBB, /* 0xA8-0xAB */
+	0xF4, 0xA1, 0x00, 0x00, 0x00, 0x00, 0xEE, 0xCD, /* 0xAC-0xAF */
+	0xE1, 0xAE, 0x00, 0x00, 0x00, 0x00, 0xEC, 0xC3, /* 0xB0-0xB3 */
+	0xCF, 0xFE, 0x00, 0x00, 0xF8, 0xBF, 0xD8, 0xE2, /* 0xB4-0xB7 */
+	0xD3, 0xE8, 0x00, 0x00, 0x00, 0x00, 0xDE, 0xA8, /* 0xB8-0xBB */
+	0xF4, 0xE4, 0xEC, 0xC2, 0x00, 0x00, 0xD9, 0xF5, /* 0xBC-0xBF */
+	0xF9, 0xC5, 0xDD, 0xD3, 0xD6, 0xF1, 0xEC, 0xFC, /* 0xC0-0xC3 */
+	0xFC, 0xF0, 0x00, 0x00, 0x00, 0x00, 0xED, 0xC0, /* 0xC4-0xC7 */
+	0xCA, 0xB9, 0x00, 0x00, 0xEE, 0xE4, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0xF2, 0xE1, 0x00, 0x00, 0xDE, 0xB9, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0xD6, 0xF2, 0x00, 0x00, /* 0xD8-0xDB */
+	0xDE, 0xF4, 0x00, 0x00, 0xDF, 0xDB, 0x00, 0x00, /* 0xDC-0xDF */
+	0xDB, 0xD3, 0x00, 0x00, 0xFA, 0xE7, 0xD8, 0xE3, /* 0xE0-0xE3 */
+	0xF4, 0xC1, 0x00, 0x00, 0xDD, 0xB7, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0xF2, 0xF5, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0xD4, 0xAE, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xD6, 0xF3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDD, 0xB8, /* 0xF8-0xFB */
+	0xCF, 0xC5, 0xDF, 0xDF, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_8D[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0xF2, 0xBE, 0xF6, 0xA1, 0x00, 0x00, 0xEB, 0xCB, /* 0x04-0x07 */
+	0xF1, 0xFC, 0x00, 0x00, 0xF3, 0xC7, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0xE0, 0xEB, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xED, 0xFC, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xDB, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0xEE, 0xE5, 0x00, 0x00, 0xDE, 0xF5, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFA, 0xD3, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0xF1, 0xCB, 0x00, 0x00, 0x00, 0x00, 0xD0, 0xAF, /* 0x70-0x73 */
+	0xDD, 0xB9, 0x00, 0x00, 0x00, 0x00, 0xD1, 0xC3, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0xF5, 0xB1, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0xEA, 0xC6, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0xF0, 0xE1, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF6, 0xAC, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xF5, 0xD9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0xEB, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0xDD, 0xBA, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0xF2, 0xBF, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0xF7, 0xC5, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDB, 0xA2, /* 0xC8-0xCB */
+	0xF2, 0xF6, 0x00, 0x00, 0x00, 0x00, 0xCA, 0xBA, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF7, 0xF5, /* 0xD8-0xDB */
+	0x00, 0x00, 0xCB, 0xE5, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0xEE, 0xE6, 0x00, 0x00, 0xE0, 0xD3, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xCE, 0xA5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD6, 0xD8, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD4, 0xAF, /* 0xF0-0xF3 */
+};
+
+static unsigned char u2c_8E[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xC9, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD3, 0xCE, /* 0x0C-0x0F */
+	0xF4, 0xC2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0xCB, 0xE6, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xF1, 0xA1, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xEB, 0xB2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0xF1, 0xA2, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0xEB, 0xB3, 0x00, 0x00, /* 0x40-0x43 */
+	0xF0, 0xB4, 0x00, 0x00, 0x00, 0x00, 0xCB, 0xF4, /* 0x44-0x47 */
+	0xD4, 0xB0, 0xF3, 0xB2, 0xFB, 0xB7, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0xF5, 0xEC, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEE, 0xE7, /* 0x5C-0x5F */
+	0xF4, 0xB2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0xF5, 0xED, 0x00, 0x00, 0xCF, 0xF3, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xF0, 0xE2, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEE, 0xCE, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0xF1, 0xCC, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0xE5, 0xB8, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0xD7, 0xF5, 0xE3, 0xF3, /* 0xA8-0xAB */
+	0xCF, 0xE5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0xCF, 0xC6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0xF3, 0xB3, 0xE4, 0xD8, /* 0xC8-0xCB */
+	0xCF, 0xF9, 0xCF, 0xDA, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0xFA, 0xCD, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE6, 0xE3, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF2, 0xE2, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xF5, 0xEE, 0x00, 0x00, 0x00, 0x00, 0xCA, 0xBB, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0xDC, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_8F[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCE, 0xF2, /* 0x00-0x03 */
+	0x00, 0x00, 0xD6, 0xD9, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xEE, 0xB0, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0xF4, 0xE5, 0xD8, 0xC2, /* 0x10-0x13 */
+	0xDC, 0xD0, 0xCC, 0xEE, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD5, 0xE0, /* 0x18-0x1B */
+	0xF6, 0xCA, 0xFD, 0xCA, 0xD8, 0xD6, 0xF4, 0xCF, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0xD6, 0xA6, 0xDC, 0xBE, /* 0x24-0x27 */
+	0x00, 0x00, 0xDB, 0xD4, 0xD7, 0xC7, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF2, 0xFE, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF1, 0xCD, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0xE2, 0xC3, 0xDC, 0xDE, 0x00, 0x00, 0xDC, 0xDF, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0xEF, 0xAD, 0xE6, 0xAB, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0xF9, 0xDD, 0xEA, 0xBF, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0xEF, 0xAE, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0xF4, 0xD0, 0xCE, 0xF3, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0xE6, 0xAC, 0x00, 0x00, 0xCE, 0xDE, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0xD5, 0xF9, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, 0xF4, /* 0x98-0x9B */
+	0xCD, 0xD0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD5, 0xB8, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0xF7, 0xFD, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xDC, 0xA9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0xDE, 0xF6, 0x00, 0x00, 0xDC, 0xAA, /* 0xAC-0xAF */
+	0xF2, 0xE3, 0xE9, 0xB4, 0xD2, 0xDC, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xE6, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xE3, 0xF6, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0xCA, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0xD0, 0xCE, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xDA, 0xF7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0xCA, 0xBC, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0xEE, 0xE8, 0xDA, 0xDE, /* 0xE8-0xEB */
+	0x00, 0x00, 0xF2, 0xF7, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0xE2, 0xFB, 0x00, 0x00, 0xCC, 0xA6, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDA, 0xBB, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xEE, 0xE9, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0xF5, 0xDA, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_90[512] = {
+	0xF7, 0xDC, 0xE1, 0xEA, 0xCE, 0xC1, 0xD4, 0xB1, /* 0x00-0x03 */
+	0x00, 0x00, 0xFD, 0xB1, 0xE6, 0xBD, 0x00, 0x00, /* 0x04-0x07 */
+	0xFB, 0xAD, 0x00, 0x00, 0x00, 0x00, 0xF8, 0xE7, /* 0x08-0x0B */
+	0x00, 0x00, 0xE1, 0xCE, 0x00, 0x00, 0xF7, 0xE2, /* 0x0C-0x0F */
+	0xF5, 0xEF, 0xCF, 0xC7, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0xD4, 0xB2, 0xCC, 0xEF, 0x00, 0x00, 0xD4, 0xE8, /* 0x14-0x17 */
+	0x00, 0x00, 0xEE, 0xCF, 0xF7, 0xD7, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0xE0, 0xA6, 0xD6, 0xC1, 0xE1, 0xDC, /* 0x1C-0x1F */
+	0xF0, 0xE3, 0xF1, 0xE4, 0xDC, 0xF1, 0xD6, 0xA7, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0xF4, 0xF5, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0xF1, 0xCE, 0xF2, 0xE4, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0xD0, 0xB0, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0xEC, 0xEF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0xF9, 0xBA, 0x00, 0x00, 0xEB, 0xB5, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0xD4, 0xED, 0xE2, 0xC4, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE9, 0xE7, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0xEB, 0xB4, 0xEA, 0xA1, /* 0x48-0x4B */
+	0x00, 0x00, 0xF8, 0xBC, 0xCE, 0xA6, 0x00, 0x00, /* 0x4C-0x4F */
+	0xF9, 0xC6, 0xFC, 0xDA, 0x00, 0x00, 0xD4, 0xB3, /* 0x50-0x53 */
+	0xD3, 0xB9, 0xEA, 0xDE, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0xE9, 0xAB, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0xE1, 0xE1, 0xD3, 0xCF, 0xF4, 0xF6, 0x00, 0x00, /* 0x5C-0x5F */
+	0xEA, 0xC0, 0xE1, 0xCF, 0x00, 0x00, 0xCC, 0xBA, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0xEE, 0xEA, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0xF0, 0xE4, 0xF3, 0xB4, 0xD4, 0xEE, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0xF2, 0xC0, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0xF1, 0xE5, 0x00, 0x00, 0xF4, 0xC3, /* 0x74-0x77 */
+	0xE0, 0xD4, 0x00, 0x00, 0xEB, 0xB6, 0x00, 0x00, /* 0x78-0x7B */
+	0xD7, 0xA1, 0xCB, 0xE8, 0x00, 0x00, 0xF9, 0xAD, /* 0x7C-0x7F */
+	
+	0xE9, 0xAD, 0xD8, 0xE4, 0xFA, 0xB3, 0xE2, 0xC5, /* 0x80-0x83 */
+	0xFC, 0xBD, 0x00, 0x00, 0x00, 0x00, 0xEC, 0xC4, /* 0x84-0x87 */
+	0xD8, 0xB1, 0x00, 0x00, 0xDC, 0xAB, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD5, 0xA4, /* 0x8C-0x8F */
+	0x00, 0x00, 0xEB, 0xE9, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0xE8, 0xBB, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0xD8, 0xD7, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0xFB, 0xAE, 0xD1, 0xE1, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0xDB, 0xC0, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xF5, 0xBE, 0x00, 0x00, 0xDE, 0xF7, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCA, 0xFB, /* 0xAC-0xAF */
+	0xF7, 0xC6, 0xCF, 0xC8, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xE1, 0xD0, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xEE, 0xD0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0xE9, 0xF4, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0xCE, 0xF4, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0xD5, 0xCD, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0xCF, 0xDB, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xDD, 0xBB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0xCE, 0xAC, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0xE9, 0xE8, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0xD4, 0xB4, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_91[512] = {
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0xC7, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0xF5, 0xDB, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0xFA, 0xC1, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0xDE, 0xA9, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD4, 0xF8, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0xEF, 0xF7, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0xD3, 0xB3, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0xEB, 0xB7, 0xEF, 0xF8, 0xF5, 0xDC, /* 0x48-0x4B */
+	0xED, 0xCC, 0xDB, 0xD5, 0xF1, 0xCF, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0xF1, 0xD0, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0xF5, 0xB2, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0xD9, 0xAE, 0xD5, 0xAC, 0x00, 0x00, /* 0x68-0x6B */
+	0xE2, 0xC6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0xFD, 0xA3, 0x00, 0x00, 0xFB, 0xE5, /* 0x74-0x77 */
+	0xDF, 0xAB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xF5, /* 0x84-0x87 */
+	0x00, 0x00, 0xF6, 0xAD, 0x00, 0x00, 0xF5, 0xB3, /* 0x88-0x8B */
+	0x00, 0x00, 0xF0, 0xB5, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xA5, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0xF5, 0xDD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEC, 0xA2, /* 0xA8-0xAB */
+	0xED, 0xFD, 0x00, 0x00, 0xF5, 0xB4, 0xFB, 0xB8, /* 0xAC-0xAF */
+	0x00, 0x00, 0xDB, 0xA3, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0xD6, 0xCA, 0xCB, 0xD9, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0xE5, 0xD4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF3, 0xFA, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xEB, 0xB8, 0x00, 0x00, 0xE0, 0xB7, /* 0xC8-0xCB */
+	0xD7, 0xEC, 0xF1, 0xEC, 0xE5, 0xAF, 0xD5, 0xE1, /* 0xCC-0xCF */
+	0xD7, 0xED, 0xD1, 0xD1, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE1, 0xF2, /* 0xD4-0xD7 */
+	0xEF, 0xF9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0xDD, 0xBC, 0xF6, 0xDC, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0xE5, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF4, 0xC4, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xE9, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0xF3, 0xFB, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+};
+
+static unsigned char u2c_92[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0xD4, 0xEF, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0xCC, 0xA2, 0xF7, 0xFE, 0xDF, 0xBC, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEB, 0xCD, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0xD0, 0xB7, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0xD6, 0xC2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xE8, 0xAD, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEF, 0xAF, /* 0x3C-0x3F */
+	0xCB, 0xA5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0xCB, 0xE9, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0xFA, 0xE8, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCC, 0xC6, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE6, 0xE7, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0xEA, 0xC7, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0xDB, 0xA4, 0x00, 0x00, /* 0x60-0x63 */
+	0xCF, 0xC9, 0xE2, 0xFC, 0xEF, 0xFA, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xEB, 0xDE, 0x00, 0x00, 0x00, 0x00, 0xF5, 0xC8, /* 0x80-0x83 */
+	0x00, 0x00, 0xD4, 0xDE, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0xE0, 0xD5, 0x00, 0x00, 0xEF, 0xB0, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0xC7, 0x00, 0x00, /* 0x94-0x97 */
+	0xD9, 0xAF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0xF9, 0xE7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE7, 0xE5, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0xCF, 0xCA, 0xE1, 0xD1, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xE2, 0xC8, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0xEF, 0xFB, 0x00, 0x00, 0x00, 0x00, 0xFA, 0xF9, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0xDC, 0xF2, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0xE0, 0xA7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0xF8, 0xE8, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xCB, 0xEA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0xCB, 0xBC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_93[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0xD6, 0xE2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0xF5, 0xDE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0xF5, 0xDF, 0x00, 0x00, 0xEE, 0xB6, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0xF6, 0xD3, 0xCA, /* 0x1C-0x1F */
+	0xEF, 0xFC, 0xD1, 0xC4, 0xEF, 0xB1, 0x00, 0x00, /* 0x20-0x23 */
+	0xD1, 0xC5, 0x00, 0x00, 0xD0, 0xDE, 0x00, 0x00, /* 0x24-0x27 */
+	0xD9, 0xE1, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xB8, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0xCD, 0xD1, 0xF3, 0xB9, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0xE7, 0xCC, 0x00, 0x00, 0xD6, 0xA8, 0xCE, 0xA7, /* 0x48-0x4B */
+	0x00, 0x00, 0xD4, 0xB5, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0xE4, 0xC8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD3, 0xB4, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0xEB, 0xB9, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0xCB, 0xF5, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0xF6, 0xDD, 0x00, 0x00, 0xF1, 0xA3, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0xCC, 0xC7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0xE9, 0xCA, 0x00, 0x00, 0xE1, 0xF0, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0xF5, 0xE0, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFB, 0xAF, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCB, 0xD1, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0xFB, 0xE0, 0xF2, 0xE5, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0xEC, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0xEC, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0xEE, 0xEB, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xCB, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0xCC, 0xF0, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0xD7, 0xAF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0xF3, 0xA1, 0x00, 0x00, /* 0xF4-0xF7 */
+};
+
+static unsigned char u2c_94[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0xFC, 0xF5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0xF1, 0xA4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0xE0, 0xD6, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEF, 0xB2, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0xF4, 0xD1, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0xF7, 0xA1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0xF1, 0xD1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0xCA, 0xFC, 0xCA, 0xFD, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCE, 0xCE, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0xF3, 0xC8, 0x00, 0x00, 0xF3, 0xBA, /* 0x7C-0x7F */
+};
+
+static unsigned char u2c_95[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xED, 0xFE, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xDA, 0xA6, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xEC, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0xF8, 0xCD, 0x00, 0x00, 0xCB, 0xD2, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEB, 0xCE, /* 0x8C-0x8F */
+	0x00, 0x00, 0xF9, 0xD8, 0xF9, 0xD9, 0xCA, 0xE0, /* 0x90-0x93 */
+	0xDA, 0xCA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0xCB, 0xA6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCA, 0xC8, /* 0xA0-0xA3 */
+	0xF9, 0xEE, 0xDB, 0xEC, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xD0, 0xB1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0xD5, 0xEF, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0xE6, 0xF3, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE7, 0xA2, /* 0xB8-0xBB */
+	0xE4, 0xD9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xE1, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0xFC, 0xC4, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xF9, 0xEF, 0xCF, 0xF4, 0xF7, 0xE6, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0xCE, 0xBC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0xF4, 0xC5, 0xDC, 0xA3, 0x00, 0x00, /* 0xE0-0xE3 */
+};
+
+static unsigned char u2c_96[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0xDD, 0xBD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0xF4, 0xC6, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xF8, 0xA1, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0xE8, 0xD6, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0xDB, 0xC1, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0xE6, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xB9, /* 0x3C-0x3F */
+	0xF6, 0xED, 0x00, 0x00, 0xF9, 0xAE, 0x00, 0x00, /* 0x40-0x43 */
+	0xDD, 0xBE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD7, 0xB0, /* 0x48-0x4B */
+	0xD8, 0xE8, 0xCB, 0xBD, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0xF9, 0xDA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF8, 0xCE, /* 0x58-0x5B */
+	0xF9, 0xF0, 0xE0, 0xED, 0xE3, 0xB3, 0xF4, 0xB3, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0xEA, 0xC2, 0xF2, 0xE6, /* 0x60-0x63 */
+	0xF0, 0xB6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0xDB, 0xD6, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0xEB, 0xE4, 0x00, 0x00, 0x00, 0x00, 0xF2, 0xE7, /* 0x70-0x73 */
+	0x00, 0x00, 0xD7, 0xD5, 0xD4, 0xB6, 0xF9, 0xE8, /* 0x74-0x77 */
+	0xD7, 0xC1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0xE5, 0xD5, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0xE9, 0xEA, 0xD7, 0xCC, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0xD3, 0xE9, 0xE2, 0xC9, /* 0x88-0x8B */
+	0x00, 0x00, 0xFC, 0xDB, 0xCD, 0xAD, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0xCC, 0xB0, 0xEA, 0xA2, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0xE4, 0xF6, 0xD0, 0xC0, 0x00, 0x00, 0xF0, 0xB7, /* 0x98-0x9B */
+	0xEE, 0xA1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD7, 0xF6, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xCA, /* 0xA4-0xA7 */
+	0xE2, 0xCB, 0x00, 0x00, 0xFA, 0xCF, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0xEB, 0xDF, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD6, 0xCB, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF4, 0xB4, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0xED, 0xCD, 0xE4, 0xD2, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xEA, 0xA9, 0xE4, 0xBA, 0xF3, 0xA2, 0xCD, 0xD2, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xF6, 0xCB, 0x00, 0x00, 0xF1, 0xE6, /* 0xC8-0xCB */
+	0xED, 0xC1, 0xE8, 0xBC, 0xEE, 0xD1, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xF0, 0xE7, 0xE2, 0xCC, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xE4, 0xAA, 0x00, 0x00, 0xF5, 0xE1, /* 0xD8-0xDB */
+	0xED, 0xDA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0xD7, 0xEE, 0xD1, 0xF1, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xE9, 0xEB, 0xE9, 0xEC, 0xE0, 0xE4, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDA, 0xA7, /* 0xEC-0xEF */
+	0xDD, 0xD4, 0x00, 0x00, 0xEA, 0xA3, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0xD6, 0xC3, 0xD6, 0xF4, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xDA, 0xDF, 0x00, 0x00, 0xEF, 0xB3, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_97[512] = {
+	0xE2, 0xCD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0xEF, 0xFD, 0xF2, 0xE8, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0xEF, 0xC5, 0x00, 0x00, 0xE7, 0xE7, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xD7, 0xFD, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0xE7, 0xCE, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0xDF, 0xDC, 0x00, 0x00, 0xF9, 0xC7, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD9, 0xF6, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xDF, 0xAC, 0x00, 0x00, 0xD6, 0xDA, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0xDC, 0xA4, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0xF0, 0xB8, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0xD5, 0xFA, 0x00, 0x00, /* 0x40-0x43 */
+	0xE4, 0xF7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0xD6, 0xC4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0xF4, 0xEC, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0xEF, 0xFE, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0xF0, 0xA1, 0x00, 0x00, 0xDE, 0xAA, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0xDA, 0xBC, 0xD8, 0xFC, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0xFA, 0xD4, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0xEC, 0xE5, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0xFC, 0xA8, 0x00, 0x00, 0x00, 0x00, 0xEC, 0xE6, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0xD8, 0xCB, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFB, 0xB9, /* 0x88-0x8B */
+	0x00, 0x00, 0xE4, 0xD3, 0x00, 0x00, 0xCD, 0xF9, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0xCF, 0xD3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xCA, 0xEA, 0x00, 0x00, 0x00, 0x00, 0xCF, 0xD4, /* 0xA8-0xAB */
+	0x00, 0x00, 0xF8, 0xBD, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0xF4, 0xC7, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEA, 0xDF, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF9, 0xDB, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0xD4, 0xB7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEB, 0xE5, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xD2, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEA, 0xA4, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFA, 0xC2, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_98[512] = {
+	0xFB, 0xE1, 0xFA, 0xED, 0xF0, 0xA2, 0xCC, 0xF1, /* 0x00-0x03 */
+	0x00, 0x00, 0xFA, 0xA3, 0xE2, 0xF7, 0x00, 0x00, /* 0x04-0x07 */
+	0xE2, 0xCE, 0x00, 0x00, 0xE9, 0xF5, 0x00, 0x00, /* 0x08-0x0B */
+	0xE1, 0xEB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0xE7, 0xE8, 0xE8, 0xD7, 0xDA, 0xF8, 0xD4, 0xCB, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF7, 0xF6, /* 0x14-0x17 */
+	0xD6, 0xC5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0xD4, 0xE9, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xFA, 0xFA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0xCC, 0xF2, 0xF7, 0xDD, 0x00, 0x00, 0xDE, 0xBA, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xCE, 0xA8, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0xF0, 0xB9, 0xE4, 0xFE, 0xE4, 0xC9, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0xE4, 0xD4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0xEA, 0xC3, 0x00, 0x00, 0xEF, 0xB4, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0xD7, 0xBE, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0xFB, 0xE2, 0x00, 0x00, 0xCD, 0xD3, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEF, 0xB5, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFA, 0xE9, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xF9, 0xA6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDF, 0xBD, /* 0xAC-0xAF */
+	0x00, 0x00, 0xF7, 0xC7, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xF8, 0xFD, 0x00, 0x00, 0x00, 0x00, 0xF8, 0xFC, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDE, 0xAB, /* 0xD8-0xDB */
+	0xDB, 0xE8, 0x00, 0x00, 0x00, 0x00, 0xE3, 0xDD, /* 0xDC-0xDF */
+	0x00, 0x00, 0xE1, 0xE2, 0xD1, 0xC6, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0xF6, 0xD0, 0xEB, 0xE6, 0xDA, 0xF9, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xEC, 0xC7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0xDE, 0xF8, 0xF8, 0xE9, 0xE3, 0xDE, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_99[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCE, 0xF5, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xFA, 0xC3, 0xE5, 0xD7, 0x00, 0x00, /* 0x08-0x0B */
+	0xEC, 0xC8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0xF3, 0xC9, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xBB, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0xE6, 0xAE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0xEF, 0xB6, 0x00, 0x00, /* 0x1C-0x1F */
+	0xDC, 0xBF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0xCE, 0xBD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0xD8, 0xC3, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0xD0, 0xCF, 0x00, 0x00, 0xCF, 0xFA, /* 0x48-0x4B */
+	0xF3, 0xCA, 0xE0, 0xD7, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0xD1, 0xC7, 0xE9, 0xAE, 0x00, 0x00, /* 0x50-0x53 */
+	0xE8, 0xBD, 0x00, 0x00, 0x00, 0x00, 0xFA, 0xC4, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0xCF, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0xFA, 0xC5, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0xF9, 0xB8, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xDC, 0xE0, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xFB, 0xB0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0xD8, 0xA9, 0xE5, 0xDF, 0xF9, 0xA7, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0xF6, 0xEE, 0x00, 0x00, 0xF6, 0xCC, /* 0xB0-0xB3 */
+	0xE2, 0xF8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xEC, 0xF1, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0xDA, 0xE0, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0xF1, 0xD2, 0xD2, 0xCC, 0xCF, 0xCB, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xCA, 0xBD, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xDD, 0xBF, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0xF6, 0xEF, 0x00, 0x00, 0xDE, 0xF9, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0xFA, 0xB4, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0xD5, 0xAD, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF1, 0xE7, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_9A[512] = {
+	0x00, 0x00, 0xDE, 0xBE, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0xDC, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0xD1, 0xC8, 0xD1, 0xC9, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0xF8, 0xBE, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCB, 0xF6, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xD4, 0xF9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0xF5, 0xE2, 0xE1, 0xD3, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0xD8, 0xE9, 0x00, 0x00, 0x00, 0x00, 0xF8, 0xFE, /* 0x40-0x43 */
+	0x00, 0x00, 0xCF, 0xCC, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0xFD, 0xA4, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0xCE, 0xF6, 0x00, 0x00, 0xFA, 0xD0, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0xCC, 0xF3, 0xE6, 0xBE, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF6, 0xAE, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0xD5, 0xF0, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0xD1, 0xCA, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0xFC, 0xBE, 0xD5, 0xF1, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xCD, 0xE9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xFA, 0xB5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xD0, /* 0xD0-0xD3 */
+	0xF4, 0xF7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xCD, 0xD4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xE7, 0xA3, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0xDB, 0xA5, 0x00, 0x00, /* 0xEC-0xEF */
+};
+
+static unsigned char u2c_9B[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0xD1, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD7, 0xA2, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xF7, 0xE3, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0xEA, 0xA6, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0xD0, 0xA1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0xCE, 0xDA, 0xFB, 0xEB, 0xDB, 0xA6, /* 0x40-0x43 */
+	0xDB, 0xDE, 0xD8, 0xE5, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEA, 0xE0, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0xD8, 0xAA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xE0, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD6, 0xDB, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0xEF, 0xC6, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0xF8, 0xEA, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xD5, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCE, 0xF7, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0xD8, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xD7, 0xEF, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0xF4, 0xED, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0xCD, 0xE6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xCC, 0xF4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+};
+
+static unsigned char u2c_9C[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0xF5, 0xE3, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0xE4, 0xCA, 0x00, 0x00, 0xDC, 0xE1, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0xF9, 0xC8, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0xFC, 0xBF, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0xE8, 0xA7, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD8, 0xC4, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCB, 0xBE, /* 0x44-0x47 */
+	0x00, 0x00, 0xDC, 0xAE, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD7, 0xF7, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xF0, 0xE8, 0x00, 0x00, 0xDD, 0xC0, /* 0xE4-0xE7 */
+	0x00, 0x00, 0xCF, 0xCD, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDC, 0xF3, /* 0xF0-0xF3 */
+	0xD9, 0xB0, 0x00, 0x00, 0xE6, 0xE9, 0x00, 0x00, /* 0xF4-0xF7 */
+};
+
+static unsigned char u2c_9D[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xE4, 0xBC, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEA, 0xC4, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0xEC, 0x00, 0x00, /* 0x24-0x27 */
+	0xE4, 0xE5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFB, 0xF8, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0xCC, 0xBB, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0xE4, 0xBD, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0xCD, 0xDC, 0xD9, 0xF7, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0xDD, 0xDF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0xED, 0xCE, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0xD9, 0xD0, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE5, 0xA3, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0xF9, 0xCD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xCD, 0xAE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCF, 0xCE, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0xF6, 0xAF, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xFD, 0xD3, 0xEB, 0xED, 0xD6, 0xDC, 0x00, 0x00, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_9E[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xA4, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0xD5, 0xB6, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0xD6, 0xDD, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0xF9, 0xE9, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0xE7, 0xA4, 0x00, 0x00, 0xD6, 0xE3, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0xD1, 0xCB, 0xD6, 0xE4, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD5, 0xF2, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0xDE, 0xFA, 0x00, 0x00, 0xD7, 0xF8, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xD8, 0xEA, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0xCF, 0xD5, 0xD8, 0xFD, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD8, 0xAB, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0xFD, 0xCB, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFC, 0xDC, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0xE0, 0xA8, 0xD5, 0xF3, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0xFD, 0xD9, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xCC, 0xA3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xD9, 0xF9, 0x00, 0x00, 0x00, 0x00, 0xD3, 0xEA, /* 0xD8-0xDB */
+	0xF5, 0xF5, 0x00, 0x00, 0xEF, 0xC7, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xD3, 0xDA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xDA, 0xBD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+};
+
+static unsigned char u2c_9F[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE8, 0xA8, /* 0x04-0x07 */
+	0xDC, 0xAF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0xF0, 0xA3, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCD, 0xD5, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0xE0, 0xA9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDE, 0xAC, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0xF0, 0xBA, 0xEE, 0xB1, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0xEE, 0xB2, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0xF6, 0xCD, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEE, 0xD2, /* 0x5C-0x5F */
+	0x00, 0x00, 0xD6, 0xC6, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xE5, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0xF3, 0xBB, 0x00, 0x00, /* 0x68-0x6B */
+	0xE5, 0xE1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xCB, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0xD7, 0xA3, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0xDB, 0xC2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0xCA, 0xFE, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0xCF, 0xCF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+};
+
+static unsigned char u2c_AC[512] = {
+	0xB0, 0xA1, 0xB0, 0xA2, 0x81, 0x41, 0x81, 0x42, /* 0x00-0x03 */
+	0xB0, 0xA3, 0x81, 0x43, 0x81, 0x44, 0xB0, 0xA4, /* 0x04-0x07 */
+	0xB0, 0xA5, 0xB0, 0xA6, 0xB0, 0xA7, 0x81, 0x45, /* 0x08-0x0B */
+	0x81, 0x46, 0x81, 0x47, 0x81, 0x48, 0x81, 0x49, /* 0x0C-0x0F */
+	0xB0, 0xA8, 0xB0, 0xA9, 0xB0, 0xAA, 0xB0, 0xAB, /* 0x10-0x13 */
+	0xB0, 0xAC, 0xB0, 0xAD, 0xB0, 0xAE, 0xB0, 0xAF, /* 0x14-0x17 */
+	0x81, 0x4A, 0xB0, 0xB0, 0xB0, 0xB1, 0xB0, 0xB2, /* 0x18-0x1B */
+	0xB0, 0xB3, 0xB0, 0xB4, 0x81, 0x4B, 0x81, 0x4C, /* 0x1C-0x1F */
+	0xB0, 0xB5, 0x81, 0x4D, 0x81, 0x4E, 0x81, 0x4F, /* 0x20-0x23 */
+	0xB0, 0xB6, 0x81, 0x50, 0x81, 0x51, 0x81, 0x52, /* 0x24-0x27 */
+	0x81, 0x53, 0x81, 0x54, 0x81, 0x55, 0x81, 0x56, /* 0x28-0x2B */
+	0xB0, 0xB7, 0xB0, 0xB8, 0x81, 0x57, 0xB0, 0xB9, /* 0x2C-0x2F */
+	0xB0, 0xBA, 0xB0, 0xBB, 0x81, 0x58, 0x81, 0x59, /* 0x30-0x33 */
+	0x81, 0x5A, 0x81, 0x61, 0x81, 0x62, 0x81, 0x63, /* 0x34-0x37 */
+	0xB0, 0xBC, 0xB0, 0xBD, 0x81, 0x64, 0x81, 0x65, /* 0x38-0x3B */
+	0xB0, 0xBE, 0x81, 0x66, 0x81, 0x67, 0x81, 0x68, /* 0x3C-0x3F */
+	0xB0, 0xBF, 0x81, 0x69, 0x81, 0x6A, 0x81, 0x6B, /* 0x40-0x43 */
+	0x81, 0x6C, 0x81, 0x6D, 0x81, 0x6E, 0x81, 0x6F, /* 0x44-0x47 */
+	0x81, 0x70, 0x81, 0x71, 0x81, 0x72, 0xB0, 0xC0, /* 0x48-0x4B */
+	0x81, 0x73, 0xB0, 0xC1, 0x81, 0x74, 0x81, 0x75, /* 0x4C-0x4F */
+	0x81, 0x76, 0x81, 0x77, 0x81, 0x78, 0x81, 0x79, /* 0x50-0x53 */
+	0xB0, 0xC2, 0x81, 0x7A, 0x81, 0x81, 0x81, 0x82, /* 0x54-0x57 */
+	0xB0, 0xC3, 0x81, 0x83, 0x81, 0x84, 0x81, 0x85, /* 0x58-0x5B */
+	0xB0, 0xC4, 0x81, 0x86, 0x81, 0x87, 0x81, 0x88, /* 0x5C-0x5F */
+	0x81, 0x89, 0x81, 0x8A, 0x81, 0x8B, 0x81, 0x8C, /* 0x60-0x63 */
+	0x81, 0x8D, 0x81, 0x8E, 0x81, 0x8F, 0x81, 0x90, /* 0x64-0x67 */
+	0x81, 0x91, 0x81, 0x92, 0x81, 0x93, 0x81, 0x94, /* 0x68-0x6B */
+	0x81, 0x95, 0x81, 0x96, 0x81, 0x97, 0x81, 0x98, /* 0x6C-0x6F */
+	0xB0, 0xC5, 0xB0, 0xC6, 0x81, 0x99, 0x81, 0x9A, /* 0x70-0x73 */
+	0xB0, 0xC7, 0x81, 0x9B, 0x81, 0x9C, 0xB0, 0xC8, /* 0x74-0x77 */
+	0xB0, 0xC9, 0x81, 0x9D, 0xB0, 0xCA, 0x81, 0x9E, /* 0x78-0x7B */
+	0x81, 0x9F, 0x81, 0xA0, 0x81, 0xA1, 0x81, 0xA2, /* 0x7C-0x7F */
+	
+	0xB0, 0xCB, 0xB0, 0xCC, 0x81, 0xA3, 0xB0, 0xCD, /* 0x80-0x83 */
+	0xB0, 0xCE, 0xB0, 0xCF, 0xB0, 0xD0, 0x81, 0xA4, /* 0x84-0x87 */
+	0x81, 0xA5, 0xB0, 0xD1, 0xB0, 0xD2, 0xB0, 0xD3, /* 0x88-0x8B */
+	0xB0, 0xD4, 0x81, 0xA6, 0x81, 0xA7, 0x81, 0xA8, /* 0x8C-0x8F */
+	0xB0, 0xD5, 0x81, 0xA9, 0x81, 0xAA, 0x81, 0xAB, /* 0x90-0x93 */
+	0xB0, 0xD6, 0x81, 0xAC, 0x81, 0xAD, 0x81, 0xAE, /* 0x94-0x97 */
+	0x81, 0xAF, 0x81, 0xB0, 0x81, 0xB1, 0x81, 0xB2, /* 0x98-0x9B */
+	0xB0, 0xD7, 0xB0, 0xD8, 0x81, 0xB3, 0xB0, 0xD9, /* 0x9C-0x9F */
+	0xB0, 0xDA, 0xB0, 0xDB, 0x81, 0xB4, 0x81, 0xB5, /* 0xA0-0xA3 */
+	0x81, 0xB6, 0x81, 0xB7, 0x81, 0xB8, 0x81, 0xB9, /* 0xA4-0xA7 */
+	0xB0, 0xDC, 0xB0, 0xDD, 0xB0, 0xDE, 0x81, 0xBA, /* 0xA8-0xAB */
+	0xB0, 0xDF, 0x81, 0xBB, 0x81, 0xBC, 0xB0, 0xE0, /* 0xAC-0xAF */
+	0xB0, 0xE1, 0x81, 0xBD, 0x81, 0xBE, 0x81, 0xBF, /* 0xB0-0xB3 */
+	0x81, 0xC0, 0x81, 0xC1, 0x81, 0xC2, 0x81, 0xC3, /* 0xB4-0xB7 */
+	0xB0, 0xE2, 0xB0, 0xE3, 0x81, 0xC4, 0xB0, 0xE4, /* 0xB8-0xBB */
+	0xB0, 0xE5, 0xB0, 0xE6, 0x81, 0xC5, 0x81, 0xC6, /* 0xBC-0xBF */
+	0x81, 0xC7, 0xB0, 0xE7, 0x81, 0xC8, 0x81, 0xC9, /* 0xC0-0xC3 */
+	0xB0, 0xE8, 0x81, 0xCA, 0x81, 0xCB, 0x81, 0xCC, /* 0xC4-0xC7 */
+	0xB0, 0xE9, 0x81, 0xCD, 0x81, 0xCE, 0x81, 0xCF, /* 0xC8-0xCB */
+	0xB0, 0xEA, 0x81, 0xD0, 0x81, 0xD1, 0x81, 0xD2, /* 0xCC-0xCF */
+	0x81, 0xD3, 0x81, 0xD4, 0x81, 0xD5, 0x81, 0xD6, /* 0xD0-0xD3 */
+	0x81, 0xD7, 0xB0, 0xEB, 0x81, 0xD8, 0xB0, 0xEC, /* 0xD4-0xD7 */
+	0x81, 0xD9, 0x81, 0xDA, 0x81, 0xDB, 0x81, 0xDC, /* 0xD8-0xDB */
+	0x81, 0xDD, 0x81, 0xDE, 0x81, 0xDF, 0x81, 0xE0, /* 0xDC-0xDF */
+	0xB0, 0xED, 0xB0, 0xEE, 0x81, 0xE1, 0x81, 0xE2, /* 0xE0-0xE3 */
+	0xB0, 0xEF, 0x81, 0xE3, 0x81, 0xE4, 0xB0, 0xF0, /* 0xE4-0xE7 */
+	0xB0, 0xF1, 0x81, 0xE5, 0xB0, 0xF2, 0x81, 0xE6, /* 0xE8-0xEB */
+	0xB0, 0xF3, 0x81, 0xE7, 0x81, 0xE8, 0xB0, 0xF4, /* 0xEC-0xEF */
+	0xB0, 0xF5, 0xB0, 0xF6, 0x81, 0xE9, 0xB0, 0xF7, /* 0xF0-0xF3 */
+	0x81, 0xEA, 0xB0, 0xF8, 0xB0, 0xF9, 0x81, 0xEB, /* 0xF4-0xF7 */
+	0x81, 0xEC, 0x81, 0xED, 0x81, 0xEE, 0x81, 0xEF, /* 0xF8-0xFB */
+	0xB0, 0xFA, 0xB0, 0xFB, 0x81, 0xF0, 0x81, 0xF1, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_AD[512] = {
+	0xB0, 0xFC, 0x81, 0xF2, 0x81, 0xF3, 0x81, 0xF4, /* 0x00-0x03 */
+	0xB0, 0xFD, 0x81, 0xF5, 0xB0, 0xFE, 0x81, 0xF6, /* 0x04-0x07 */
+	0x81, 0xF7, 0x81, 0xF8, 0x81, 0xF9, 0x81, 0xFA, /* 0x08-0x0B */
+	0xB1, 0xA1, 0xB1, 0xA2, 0x81, 0xFB, 0xB1, 0xA3, /* 0x0C-0x0F */
+	0x81, 0xFC, 0xB1, 0xA4, 0x81, 0xFD, 0x81, 0xFE, /* 0x10-0x13 */
+	0x82, 0x41, 0x82, 0x42, 0x82, 0x43, 0x82, 0x44, /* 0x14-0x17 */
+	0xB1, 0xA5, 0x82, 0x45, 0x82, 0x46, 0x82, 0x47, /* 0x18-0x1B */
+	0xB1, 0xA6, 0x82, 0x48, 0x82, 0x49, 0x82, 0x4A, /* 0x1C-0x1F */
+	0xB1, 0xA7, 0x82, 0x4B, 0x82, 0x4C, 0x82, 0x4D, /* 0x20-0x23 */
+	0x82, 0x4E, 0x82, 0x4F, 0x82, 0x50, 0x82, 0x51, /* 0x24-0x27 */
+	0x82, 0x52, 0xB1, 0xA8, 0x82, 0x53, 0x82, 0x54, /* 0x28-0x2B */
+	0xB1, 0xA9, 0xB1, 0xAA, 0x82, 0x55, 0x82, 0x56, /* 0x2C-0x2F */
+	0x82, 0x57, 0x82, 0x58, 0x82, 0x59, 0x82, 0x5A, /* 0x30-0x33 */
+	0xB1, 0xAB, 0xB1, 0xAC, 0x82, 0x61, 0x82, 0x62, /* 0x34-0x37 */
+	0xB1, 0xAD, 0x82, 0x63, 0x82, 0x64, 0x82, 0x65, /* 0x38-0x3B */
+	0xB1, 0xAE, 0x82, 0x66, 0x82, 0x67, 0x82, 0x68, /* 0x3C-0x3F */
+	0x82, 0x69, 0x82, 0x6A, 0x82, 0x6B, 0x82, 0x6C, /* 0x40-0x43 */
+	0xB1, 0xAF, 0xB1, 0xB0, 0x82, 0x6D, 0xB1, 0xB1, /* 0x44-0x47 */
+	0x82, 0x6E, 0xB1, 0xB2, 0x82, 0x6F, 0x82, 0x70, /* 0x48-0x4B */
+	0x82, 0x71, 0x82, 0x72, 0x82, 0x73, 0x82, 0x74, /* 0x4C-0x4F */
+	0xB1, 0xB3, 0x82, 0x75, 0x82, 0x76, 0x82, 0x77, /* 0x50-0x53 */
+	0xB1, 0xB4, 0x82, 0x78, 0x82, 0x79, 0x82, 0x7A, /* 0x54-0x57 */
+	0xB1, 0xB5, 0x82, 0x81, 0x82, 0x82, 0x82, 0x83, /* 0x58-0x5B */
+	0x82, 0x84, 0x82, 0x85, 0x82, 0x86, 0x82, 0x87, /* 0x5C-0x5F */
+	0x82, 0x88, 0xB1, 0xB6, 0x82, 0x89, 0xB1, 0xB7, /* 0x60-0x63 */
+	0x82, 0x8A, 0x82, 0x8B, 0x82, 0x8C, 0x82, 0x8D, /* 0x64-0x67 */
+	0x82, 0x8E, 0x82, 0x8F, 0x82, 0x90, 0x82, 0x91, /* 0x68-0x6B */
+	0xB1, 0xB8, 0xB1, 0xB9, 0x82, 0x92, 0x82, 0x93, /* 0x6C-0x6F */
+	0xB1, 0xBA, 0x82, 0x94, 0x82, 0x95, 0xB1, 0xBB, /* 0x70-0x73 */
+	0xB1, 0xBC, 0xB1, 0xBD, 0xB1, 0xBE, 0x82, 0x96, /* 0x74-0x77 */
+	0x82, 0x97, 0x82, 0x98, 0x82, 0x99, 0xB1, 0xBF, /* 0x78-0x7B */
+	0xB1, 0xC0, 0xB1, 0xC1, 0x82, 0x9A, 0xB1, 0xC2, /* 0x7C-0x7F */
+	
+	0x82, 0x9B, 0xB1, 0xC3, 0xB1, 0xC4, 0x82, 0x9C, /* 0x80-0x83 */
+	0x82, 0x9D, 0x82, 0x9E, 0x82, 0x9F, 0x82, 0xA0, /* 0x84-0x87 */
+	0xB1, 0xC5, 0xB1, 0xC6, 0x82, 0xA1, 0x82, 0xA2, /* 0x88-0x8B */
+	0xB1, 0xC7, 0x82, 0xA3, 0x82, 0xA4, 0x82, 0xA5, /* 0x8C-0x8F */
+	0xB1, 0xC8, 0x82, 0xA6, 0x82, 0xA7, 0x82, 0xA8, /* 0x90-0x93 */
+	0x82, 0xA9, 0x82, 0xAA, 0x82, 0xAB, 0x82, 0xAC, /* 0x94-0x97 */
+	0x82, 0xAD, 0x82, 0xAE, 0x82, 0xAF, 0x82, 0xB0, /* 0x98-0x9B */
+	0xB1, 0xC9, 0xB1, 0xCA, 0x82, 0xB1, 0x82, 0xB2, /* 0x9C-0x9F */
+	0x82, 0xB3, 0x82, 0xB4, 0x82, 0xB5, 0x82, 0xB6, /* 0xA0-0xA3 */
+	0xB1, 0xCB, 0x82, 0xB7, 0x82, 0xB8, 0x82, 0xB9, /* 0xA4-0xA7 */
+	0x82, 0xBA, 0x82, 0xBB, 0x82, 0xBC, 0x82, 0xBD, /* 0xA8-0xAB */
+	0x82, 0xBE, 0x82, 0xBF, 0x82, 0xC0, 0x82, 0xC1, /* 0xAC-0xAF */
+	0x82, 0xC2, 0x82, 0xC3, 0x82, 0xC4, 0x82, 0xC5, /* 0xB0-0xB3 */
+	0x82, 0xC6, 0x82, 0xC7, 0x82, 0xC8, 0xB1, 0xCC, /* 0xB4-0xB7 */
+	0x82, 0xC9, 0x82, 0xCA, 0x82, 0xCB, 0x82, 0xCC, /* 0xB8-0xBB */
+	0x82, 0xCD, 0x82, 0xCE, 0x82, 0xCF, 0x82, 0xD0, /* 0xBC-0xBF */
+	0xB1, 0xCD, 0xB1, 0xCE, 0x82, 0xD1, 0x82, 0xD2, /* 0xC0-0xC3 */
+	0xB1, 0xCF, 0x82, 0xD3, 0x82, 0xD4, 0x82, 0xD5, /* 0xC4-0xC7 */
+	0xB1, 0xD0, 0x82, 0xD6, 0x82, 0xD7, 0x82, 0xD8, /* 0xC8-0xCB */
+	0x82, 0xD9, 0x82, 0xDA, 0x82, 0xDB, 0x82, 0xDC, /* 0xCC-0xCF */
+	0xB1, 0xD1, 0xB1, 0xD2, 0x82, 0xDD, 0xB1, 0xD3, /* 0xD0-0xD3 */
+	0x82, 0xDE, 0x82, 0xDF, 0x82, 0xE0, 0x82, 0xE1, /* 0xD4-0xD7 */
+	0x82, 0xE2, 0x82, 0xE3, 0x82, 0xE4, 0x82, 0xE5, /* 0xD8-0xDB */
+	0xB1, 0xD4, 0x82, 0xE6, 0x82, 0xE7, 0x82, 0xE8, /* 0xDC-0xDF */
+	0xB1, 0xD5, 0x82, 0xE9, 0x82, 0xEA, 0x82, 0xEB, /* 0xE0-0xE3 */
+	0xB1, 0xD6, 0x82, 0xEC, 0x82, 0xED, 0x82, 0xEE, /* 0xE4-0xE7 */
+	0x82, 0xEF, 0x82, 0xF0, 0x82, 0xF1, 0x82, 0xF2, /* 0xE8-0xEB */
+	0x82, 0xF3, 0x82, 0xF4, 0x82, 0xF5, 0x82, 0xF6, /* 0xEC-0xEF */
+	0x82, 0xF7, 0x82, 0xF8, 0x82, 0xF9, 0x82, 0xFA, /* 0xF0-0xF3 */
+	0x82, 0xFB, 0x82, 0xFC, 0x82, 0xFD, 0x82, 0xFE, /* 0xF4-0xF7 */
+	0xB1, 0xD7, 0xB1, 0xD8, 0x83, 0x41, 0x83, 0x42, /* 0xF8-0xFB */
+	0xB1, 0xD9, 0x83, 0x43, 0x83, 0x44, 0xB1, 0xDA, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_AE[512] = {
+	0xB1, 0xDB, 0xB1, 0xDC, 0x83, 0x45, 0x83, 0x46, /* 0x00-0x03 */
+	0x83, 0x47, 0x83, 0x48, 0x83, 0x49, 0x83, 0x4A, /* 0x04-0x07 */
+	0xB1, 0xDD, 0xB1, 0xDE, 0x83, 0x4B, 0xB1, 0xDF, /* 0x08-0x0B */
+	0x83, 0x4C, 0xB1, 0xE0, 0x83, 0x4D, 0x83, 0x4E, /* 0x0C-0x0F */
+	0x83, 0x4F, 0x83, 0x50, 0x83, 0x51, 0x83, 0x52, /* 0x10-0x13 */
+	0xB1, 0xE1, 0x83, 0x53, 0x83, 0x54, 0x83, 0x55, /* 0x14-0x17 */
+	0x83, 0x56, 0x83, 0x57, 0x83, 0x58, 0x83, 0x59, /* 0x18-0x1B */
+	0x83, 0x5A, 0x83, 0x61, 0x83, 0x62, 0x83, 0x63, /* 0x1C-0x1F */
+	0x83, 0x64, 0x83, 0x65, 0x83, 0x66, 0x83, 0x67, /* 0x20-0x23 */
+	0x83, 0x68, 0x83, 0x69, 0x83, 0x6A, 0x83, 0x6B, /* 0x24-0x27 */
+	0x83, 0x6C, 0x83, 0x6D, 0x83, 0x6E, 0x83, 0x6F, /* 0x28-0x2B */
+	0x83, 0x70, 0x83, 0x71, 0x83, 0x72, 0x83, 0x73, /* 0x2C-0x2F */
+	0xB1, 0xE2, 0xB1, 0xE3, 0x83, 0x74, 0x83, 0x75, /* 0x30-0x33 */
+	0xB1, 0xE4, 0x83, 0x76, 0x83, 0x77, 0xB1, 0xE5, /* 0x34-0x37 */
+	0xB1, 0xE6, 0x83, 0x78, 0xB1, 0xE7, 0x83, 0x79, /* 0x38-0x3B */
+	0x83, 0x7A, 0x83, 0x81, 0x83, 0x82, 0x83, 0x83, /* 0x3C-0x3F */
+	0xB1, 0xE8, 0xB1, 0xE9, 0x83, 0x84, 0xB1, 0xEA, /* 0x40-0x43 */
+	0x83, 0x85, 0xB1, 0xEB, 0xB1, 0xEC, 0x83, 0x86, /* 0x44-0x47 */
+	0x83, 0x87, 0x83, 0x88, 0xB1, 0xED, 0x83, 0x89, /* 0x48-0x4B */
+	0xB1, 0xEE, 0xB1, 0xEF, 0xB1, 0xF0, 0x83, 0x8A, /* 0x4C-0x4F */
+	0xB1, 0xF1, 0x83, 0x8B, 0x83, 0x8C, 0x83, 0x8D, /* 0x50-0x53 */
+	0xB1, 0xF2, 0x83, 0x8E, 0xB1, 0xF3, 0x83, 0x8F, /* 0x54-0x57 */
+	0x83, 0x90, 0x83, 0x91, 0x83, 0x92, 0x83, 0x93, /* 0x58-0x5B */
+	0xB1, 0xF4, 0xB1, 0xF5, 0x83, 0x94, 0xB1, 0xF6, /* 0x5C-0x5F */
+	0xB1, 0xF7, 0xB1, 0xF8, 0x83, 0x95, 0x83, 0x96, /* 0x60-0x63 */
+	0x83, 0x97, 0xB1, 0xF9, 0x83, 0x98, 0x83, 0x99, /* 0x64-0x67 */
+	0xB1, 0xFA, 0xB1, 0xFB, 0x83, 0x9A, 0x83, 0x9B, /* 0x68-0x6B */
+	0xB1, 0xFC, 0x83, 0x9C, 0x83, 0x9D, 0x83, 0x9E, /* 0x6C-0x6F */
+	0xB1, 0xFD, 0x83, 0x9F, 0x83, 0xA0, 0x83, 0xA1, /* 0x70-0x73 */
+	0x83, 0xA2, 0x83, 0xA3, 0x83, 0xA4, 0x83, 0xA5, /* 0x74-0x77 */
+	0xB1, 0xFE, 0xB2, 0xA1, 0x83, 0xA6, 0xB2, 0xA2, /* 0x78-0x7B */
+	0xB2, 0xA3, 0xB2, 0xA4, 0x83, 0xA7, 0x83, 0xA8, /* 0x7C-0x7F */
+	
+	0x83, 0xA9, 0x83, 0xAA, 0x83, 0xAB, 0x83, 0xAC, /* 0x80-0x83 */
+	0xB2, 0xA5, 0xB2, 0xA6, 0x83, 0xAD, 0x83, 0xAE, /* 0x84-0x87 */
+	0x83, 0xAF, 0x83, 0xB0, 0x83, 0xB1, 0x83, 0xB2, /* 0x88-0x8B */
+	0xB2, 0xA7, 0x83, 0xB3, 0x83, 0xB4, 0x83, 0xB5, /* 0x8C-0x8F */
+	0x83, 0xB6, 0x83, 0xB7, 0x83, 0xB8, 0x83, 0xB9, /* 0x90-0x93 */
+	0x83, 0xBA, 0x83, 0xBB, 0x83, 0xBC, 0x83, 0xBD, /* 0x94-0x97 */
+	0x83, 0xBE, 0x83, 0xBF, 0x83, 0xC0, 0x83, 0xC1, /* 0x98-0x9B */
+	0x83, 0xC2, 0x83, 0xC3, 0x83, 0xC4, 0x83, 0xC5, /* 0x9C-0x9F */
+	0x83, 0xC6, 0x83, 0xC7, 0x83, 0xC8, 0x83, 0xC9, /* 0xA0-0xA3 */
+	0x83, 0xCA, 0x83, 0xCB, 0x83, 0xCC, 0x83, 0xCD, /* 0xA4-0xA7 */
+	0x83, 0xCE, 0x83, 0xCF, 0x83, 0xD0, 0x83, 0xD1, /* 0xA8-0xAB */
+	0x83, 0xD2, 0x83, 0xD3, 0x83, 0xD4, 0x83, 0xD5, /* 0xAC-0xAF */
+	0x83, 0xD6, 0x83, 0xD7, 0x83, 0xD8, 0x83, 0xD9, /* 0xB0-0xB3 */
+	0x83, 0xDA, 0x83, 0xDB, 0x83, 0xDC, 0x83, 0xDD, /* 0xB4-0xB7 */
+	0x83, 0xDE, 0x83, 0xDF, 0x83, 0xE0, 0x83, 0xE1, /* 0xB8-0xBB */
+	0xB2, 0xA8, 0xB2, 0xA9, 0xB2, 0xAA, 0x83, 0xE2, /* 0xBC-0xBF */
+	0xB2, 0xAB, 0x83, 0xE3, 0x83, 0xE4, 0x83, 0xE5, /* 0xC0-0xC3 */
+	0xB2, 0xAC, 0x83, 0xE6, 0x83, 0xE7, 0x83, 0xE8, /* 0xC4-0xC7 */
+	0x83, 0xE9, 0x83, 0xEA, 0x83, 0xEB, 0x83, 0xEC, /* 0xC8-0xCB */
+	0xB2, 0xAD, 0xB2, 0xAE, 0x83, 0xED, 0xB2, 0xAF, /* 0xCC-0xCF */
+	0xB2, 0xB0, 0xB2, 0xB1, 0x83, 0xEE, 0x83, 0xEF, /* 0xD0-0xD3 */
+	0x83, 0xF0, 0x83, 0xF1, 0x83, 0xF2, 0x83, 0xF3, /* 0xD4-0xD7 */
+	0xB2, 0xB2, 0xB2, 0xB3, 0x83, 0xF4, 0x83, 0xF5, /* 0xD8-0xDB */
+	0xB2, 0xB4, 0x83, 0xF6, 0x83, 0xF7, 0x83, 0xF8, /* 0xDC-0xDF */
+	0x83, 0xF9, 0x83, 0xFA, 0x83, 0xFB, 0x83, 0xFC, /* 0xE0-0xE3 */
+	0x83, 0xFD, 0x83, 0xFE, 0x84, 0x41, 0x84, 0x42, /* 0xE4-0xE7 */
+	0xB2, 0xB5, 0x84, 0x43, 0x84, 0x44, 0xB2, 0xB6, /* 0xE8-0xEB */
+	0x84, 0x45, 0xB2, 0xB7, 0x84, 0x46, 0x84, 0x47, /* 0xEC-0xEF */
+	0x84, 0x48, 0x84, 0x49, 0x84, 0x4A, 0x84, 0x4B, /* 0xF0-0xF3 */
+	0xB2, 0xB8, 0x84, 0x4C, 0x84, 0x4D, 0x84, 0x4E, /* 0xF4-0xF7 */
+	0xB2, 0xB9, 0x84, 0x4F, 0x84, 0x50, 0x84, 0x51, /* 0xF8-0xFB */
+	0xB2, 0xBA, 0x84, 0x52, 0x84, 0x53, 0x84, 0x54, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_AF[512] = {
+	0x84, 0x55, 0x84, 0x56, 0x84, 0x57, 0x84, 0x58, /* 0x00-0x03 */
+	0x84, 0x59, 0x84, 0x5A, 0x84, 0x61, 0xB2, 0xBB, /* 0x04-0x07 */
+	0xB2, 0xBC, 0x84, 0x62, 0x84, 0x63, 0x84, 0x64, /* 0x08-0x0B */
+	0x84, 0x65, 0xB2, 0xBD, 0x84, 0x66, 0x84, 0x67, /* 0x0C-0x0F */
+	0xB2, 0xBE, 0x84, 0x68, 0x84, 0x69, 0x84, 0x6A, /* 0x10-0x13 */
+	0x84, 0x6B, 0x84, 0x6C, 0x84, 0x6D, 0x84, 0x6E, /* 0x14-0x17 */
+	0x84, 0x6F, 0x84, 0x70, 0x84, 0x71, 0x84, 0x72, /* 0x18-0x1B */
+	0x84, 0x73, 0x84, 0x74, 0x84, 0x75, 0x84, 0x76, /* 0x1C-0x1F */
+	0x84, 0x77, 0x84, 0x78, 0x84, 0x79, 0x84, 0x7A, /* 0x20-0x23 */
+	0x84, 0x81, 0x84, 0x82, 0x84, 0x83, 0x84, 0x84, /* 0x24-0x27 */
+	0x84, 0x85, 0x84, 0x86, 0x84, 0x87, 0x84, 0x88, /* 0x28-0x2B */
+	0xB2, 0xBF, 0xB2, 0xC0, 0x84, 0x89, 0x84, 0x8A, /* 0x2C-0x2F */
+	0xB2, 0xC1, 0x84, 0x8B, 0xB2, 0xC2, 0x84, 0x8C, /* 0x30-0x33 */
+	0xB2, 0xC3, 0x84, 0x8D, 0x84, 0x8E, 0x84, 0x8F, /* 0x34-0x37 */
+	0x84, 0x90, 0x84, 0x91, 0x84, 0x92, 0x84, 0x93, /* 0x38-0x3B */
+	0xB2, 0xC4, 0xB2, 0xC5, 0x84, 0x94, 0xB2, 0xC6, /* 0x3C-0x3F */
+	0x84, 0x95, 0xB2, 0xC7, 0xB2, 0xC8, 0xB2, 0xC9, /* 0x40-0x43 */
+	0x84, 0x96, 0x84, 0x97, 0x84, 0x98, 0x84, 0x99, /* 0x44-0x47 */
+	0xB2, 0xCA, 0xB2, 0xCB, 0x84, 0x9A, 0x84, 0x9B, /* 0x48-0x4B */
+	0x84, 0x9C, 0x84, 0x9D, 0x84, 0x9E, 0x84, 0x9F, /* 0x4C-0x4F */
+	0xB2, 0xCC, 0x84, 0xA0, 0x84, 0xA1, 0x84, 0xA2, /* 0x50-0x53 */
+	0x84, 0xA3, 0x84, 0xA4, 0x84, 0xA5, 0x84, 0xA6, /* 0x54-0x57 */
+	0x84, 0xA7, 0x84, 0xA8, 0x84, 0xA9, 0x84, 0xAA, /* 0x58-0x5B */
+	0xB2, 0xCD, 0xB2, 0xCE, 0x84, 0xAB, 0x84, 0xAC, /* 0x5C-0x5F */
+	0x84, 0xAD, 0x84, 0xAE, 0x84, 0xAF, 0x84, 0xB0, /* 0x60-0x63 */
+	0xB2, 0xCF, 0xB2, 0xD0, 0x84, 0xB1, 0x84, 0xB2, /* 0x64-0x67 */
+	0x84, 0xB3, 0x84, 0xB4, 0x84, 0xB5, 0x84, 0xB6, /* 0x68-0x6B */
+	0x84, 0xB7, 0x84, 0xB8, 0x84, 0xB9, 0x84, 0xBA, /* 0x6C-0x6F */
+	0x84, 0xBB, 0x84, 0xBC, 0x84, 0xBD, 0x84, 0xBE, /* 0x70-0x73 */
+	0x84, 0xBF, 0x84, 0xC0, 0x84, 0xC1, 0x84, 0xC2, /* 0x74-0x77 */
+	0x84, 0xC3, 0xB2, 0xD1, 0x84, 0xC4, 0x84, 0xC5, /* 0x78-0x7B */
+	0x84, 0xC6, 0x84, 0xC7, 0x84, 0xC8, 0x84, 0xC9, /* 0x7C-0x7F */
+	
+	0xB2, 0xD2, 0x84, 0xCA, 0x84, 0xCB, 0x84, 0xCC, /* 0x80-0x83 */
+	0xB2, 0xD3, 0x84, 0xCD, 0x84, 0xCE, 0x84, 0xCF, /* 0x84-0x87 */
+	0xB2, 0xD4, 0x84, 0xD0, 0x84, 0xD1, 0x84, 0xD2, /* 0x88-0x8B */
+	0x84, 0xD3, 0x84, 0xD4, 0x84, 0xD5, 0x84, 0xD6, /* 0x8C-0x8F */
+	0xB2, 0xD5, 0xB2, 0xD6, 0x84, 0xD7, 0x84, 0xD8, /* 0x90-0x93 */
+	0x84, 0xD9, 0xB2, 0xD7, 0x84, 0xDA, 0x84, 0xDB, /* 0x94-0x97 */
+	0x84, 0xDC, 0x84, 0xDD, 0x84, 0xDE, 0x84, 0xDF, /* 0x98-0x9B */
+	0xB2, 0xD8, 0x84, 0xE0, 0x84, 0xE1, 0x84, 0xE2, /* 0x9C-0x9F */
+	0x84, 0xE3, 0x84, 0xE4, 0x84, 0xE5, 0x84, 0xE6, /* 0xA0-0xA3 */
+	0x84, 0xE7, 0x84, 0xE8, 0x84, 0xE9, 0x84, 0xEA, /* 0xA4-0xA7 */
+	0x84, 0xEB, 0x84, 0xEC, 0x84, 0xED, 0x84, 0xEE, /* 0xA8-0xAB */
+	0x84, 0xEF, 0x84, 0xF0, 0x84, 0xF1, 0x84, 0xF2, /* 0xAC-0xAF */
+	0x84, 0xF3, 0x84, 0xF4, 0x84, 0xF5, 0x84, 0xF6, /* 0xB0-0xB3 */
+	0x84, 0xF7, 0x84, 0xF8, 0x84, 0xF9, 0x84, 0xFA, /* 0xB4-0xB7 */
+	0xB2, 0xD9, 0xB2, 0xDA, 0x84, 0xFB, 0x84, 0xFC, /* 0xB8-0xBB */
+	0xB2, 0xDB, 0x84, 0xFD, 0x84, 0xFE, 0x85, 0x41, /* 0xBC-0xBF */
+	0xB2, 0xDC, 0x85, 0x42, 0x85, 0x43, 0x85, 0x44, /* 0xC0-0xC3 */
+	0x85, 0x45, 0x85, 0x46, 0x85, 0x47, 0xB2, 0xDD, /* 0xC4-0xC7 */
+	0xB2, 0xDE, 0xB2, 0xDF, 0x85, 0x48, 0xB2, 0xE0, /* 0xC8-0xCB */
+	0x85, 0x49, 0xB2, 0xE1, 0xB2, 0xE2, 0x85, 0x4A, /* 0xCC-0xCF */
+	0x85, 0x4B, 0x85, 0x4C, 0x85, 0x4D, 0x85, 0x4E, /* 0xD0-0xD3 */
+	0xB2, 0xE3, 0x85, 0x4F, 0x85, 0x50, 0x85, 0x51, /* 0xD4-0xD7 */
+	0x85, 0x52, 0x85, 0x53, 0x85, 0x54, 0x85, 0x55, /* 0xD8-0xDB */
+	0xB2, 0xE4, 0x85, 0x56, 0x85, 0x57, 0x85, 0x58, /* 0xDC-0xDF */
+	0x85, 0x59, 0x85, 0x5A, 0x85, 0x61, 0x85, 0x62, /* 0xE0-0xE3 */
+	0x85, 0x63, 0x85, 0x64, 0x85, 0x65, 0x85, 0x66, /* 0xE4-0xE7 */
+	0xB2, 0xE5, 0xB2, 0xE6, 0x85, 0x67, 0x85, 0x68, /* 0xE8-0xEB */
+	0x85, 0x69, 0x85, 0x6A, 0x85, 0x6B, 0x85, 0x6C, /* 0xEC-0xEF */
+	0xB2, 0xE7, 0xB2, 0xE8, 0x85, 0x6D, 0x85, 0x6E, /* 0xF0-0xF3 */
+	0xB2, 0xE9, 0x85, 0x6F, 0x85, 0x70, 0x85, 0x71, /* 0xF4-0xF7 */
+	0xB2, 0xEA, 0x85, 0x72, 0x85, 0x73, 0x85, 0x74, /* 0xF8-0xFB */
+	0x85, 0x75, 0x85, 0x76, 0x85, 0x77, 0x85, 0x78, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_B0[512] = {
+	0xB2, 0xEB, 0xB2, 0xEC, 0x85, 0x79, 0x85, 0x7A, /* 0x00-0x03 */
+	0xB2, 0xED, 0x85, 0x81, 0x85, 0x82, 0x85, 0x83, /* 0x04-0x07 */
+	0x85, 0x84, 0x85, 0x85, 0x85, 0x86, 0x85, 0x87, /* 0x08-0x0B */
+	0xB2, 0xEE, 0x85, 0x88, 0x85, 0x89, 0x85, 0x8A, /* 0x0C-0x0F */
+	0xB2, 0xEF, 0x85, 0x8B, 0x85, 0x8C, 0x85, 0x8D, /* 0x10-0x13 */
+	0xB2, 0xF0, 0x85, 0x8E, 0x85, 0x8F, 0x85, 0x90, /* 0x14-0x17 */
+	0x85, 0x91, 0x85, 0x92, 0x85, 0x93, 0x85, 0x94, /* 0x18-0x1B */
+	0xB2, 0xF1, 0xB2, 0xF2, 0x85, 0x95, 0x85, 0x96, /* 0x1C-0x1F */
+	0x85, 0x97, 0x85, 0x98, 0x85, 0x99, 0x85, 0x9A, /* 0x20-0x23 */
+	0x85, 0x9B, 0x85, 0x9C, 0x85, 0x9D, 0x85, 0x9E, /* 0x24-0x27 */
+	0xB2, 0xF3, 0x85, 0x9F, 0x85, 0xA0, 0x85, 0xA1, /* 0x28-0x2B */
+	0x85, 0xA2, 0x85, 0xA3, 0x85, 0xA4, 0x85, 0xA5, /* 0x2C-0x2F */
+	0x85, 0xA6, 0x85, 0xA7, 0x85, 0xA8, 0x85, 0xA9, /* 0x30-0x33 */
+	0x85, 0xAA, 0x85, 0xAB, 0x85, 0xAC, 0x85, 0xAD, /* 0x34-0x37 */
+	0x85, 0xAE, 0x85, 0xAF, 0x85, 0xB0, 0x85, 0xB1, /* 0x38-0x3B */
+	0x85, 0xB2, 0x85, 0xB3, 0x85, 0xB4, 0x85, 0xB5, /* 0x3C-0x3F */
+	0x85, 0xB6, 0x85, 0xB7, 0x85, 0xB8, 0x85, 0xB9, /* 0x40-0x43 */
+	0xB2, 0xF4, 0xB2, 0xF5, 0x85, 0xBA, 0x85, 0xBB, /* 0x44-0x47 */
+	0xB2, 0xF6, 0x85, 0xBC, 0xB2, 0xF7, 0x85, 0xBD, /* 0x48-0x4B */
+	0xB2, 0xF8, 0x85, 0xBE, 0xB2, 0xF9, 0x85, 0xBF, /* 0x4C-0x4F */
+	0x85, 0xC0, 0x85, 0xC1, 0x85, 0xC2, 0xB2, 0xFA, /* 0x50-0x53 */
+	0xB2, 0xFB, 0xB2, 0xFC, 0x85, 0xC3, 0xB2, 0xFD, /* 0x54-0x57 */
+	0x85, 0xC4, 0xB2, 0xFE, 0x85, 0xC5, 0x85, 0xC6, /* 0x58-0x5B */
+	0x85, 0xC7, 0xB3, 0xA1, 0x85, 0xC8, 0x85, 0xC9, /* 0x5C-0x5F */
+	0x85, 0xCA, 0x85, 0xCB, 0x85, 0xCC, 0x85, 0xCD, /* 0x60-0x63 */
+	0x85, 0xCE, 0x85, 0xCF, 0x85, 0xD0, 0x85, 0xD1, /* 0x64-0x67 */
+	0x85, 0xD2, 0x85, 0xD3, 0x85, 0xD4, 0x85, 0xD5, /* 0x68-0x6B */
+	0x85, 0xD6, 0x85, 0xD7, 0x85, 0xD8, 0x85, 0xD9, /* 0x6C-0x6F */
+	0x85, 0xDA, 0x85, 0xDB, 0x85, 0xDC, 0x85, 0xDD, /* 0x70-0x73 */
+	0x85, 0xDE, 0x85, 0xDF, 0x85, 0xE0, 0x85, 0xE1, /* 0x74-0x77 */
+	0x85, 0xE2, 0x85, 0xE3, 0x85, 0xE4, 0x85, 0xE5, /* 0x78-0x7B */
+	0xB3, 0xA2, 0xB3, 0xA3, 0x85, 0xE6, 0x85, 0xE7, /* 0x7C-0x7F */
+	
+	0xB3, 0xA4, 0x85, 0xE8, 0x85, 0xE9, 0x85, 0xEA, /* 0x80-0x83 */
+	0xB3, 0xA5, 0x85, 0xEB, 0x85, 0xEC, 0x85, 0xED, /* 0x84-0x87 */
+	0x85, 0xEE, 0x85, 0xEF, 0x85, 0xF0, 0x85, 0xF1, /* 0x88-0x8B */
+	0xB3, 0xA6, 0xB3, 0xA7, 0x85, 0xF2, 0xB3, 0xA8, /* 0x8C-0x8F */
+	0x85, 0xF3, 0xB3, 0xA9, 0x85, 0xF4, 0x85, 0xF5, /* 0x90-0x93 */
+	0x85, 0xF6, 0x85, 0xF7, 0x85, 0xF8, 0x85, 0xF9, /* 0x94-0x97 */
+	0xB3, 0xAA, 0xB3, 0xAB, 0xB3, 0xAC, 0x85, 0xFA, /* 0x98-0x9B */
+	0xB3, 0xAD, 0x85, 0xFB, 0x85, 0xFC, 0xB3, 0xAE, /* 0x9C-0x9F */
+	0xB3, 0xAF, 0xB3, 0xB0, 0xB3, 0xB1, 0x85, 0xFD, /* 0xA0-0xA3 */
+	0x85, 0xFE, 0x86, 0x41, 0x86, 0x42, 0x86, 0x43, /* 0xA4-0xA7 */
+	0xB3, 0xB2, 0xB3, 0xB3, 0x86, 0x44, 0xB3, 0xB4, /* 0xA8-0xAB */
+	0xB3, 0xB5, 0xB3, 0xB6, 0xB3, 0xB7, 0xB3, 0xB8, /* 0xAC-0xAF */
+	0x86, 0x45, 0xB3, 0xB9, 0x86, 0x46, 0xB3, 0xBA, /* 0xB0-0xB3 */
+	0xB3, 0xBB, 0xB3, 0xBC, 0x86, 0x47, 0x86, 0x48, /* 0xB4-0xB7 */
+	0xB3, 0xBD, 0x86, 0x49, 0x86, 0x4A, 0x86, 0x4B, /* 0xB8-0xBB */
+	0xB3, 0xBE, 0x86, 0x4C, 0x86, 0x4D, 0x86, 0x4E, /* 0xBC-0xBF */
+	0x86, 0x4F, 0x86, 0x50, 0x86, 0x51, 0x86, 0x52, /* 0xC0-0xC3 */
+	0xB3, 0xBF, 0xB3, 0xC0, 0x86, 0x53, 0xB3, 0xC1, /* 0xC4-0xC7 */
+	0xB3, 0xC2, 0xB3, 0xC3, 0x86, 0x54, 0x86, 0x55, /* 0xC8-0xCB */
+	0x86, 0x56, 0x86, 0x57, 0x86, 0x58, 0x86, 0x59, /* 0xCC-0xCF */
+	0xB3, 0xC4, 0xB3, 0xC5, 0x86, 0x5A, 0x86, 0x61, /* 0xD0-0xD3 */
+	0xB3, 0xC6, 0x86, 0x62, 0x86, 0x63, 0x86, 0x64, /* 0xD4-0xD7 */
+	0xB3, 0xC7, 0x86, 0x65, 0x86, 0x66, 0x86, 0x67, /* 0xD8-0xDB */
+	0x86, 0x68, 0x86, 0x69, 0x86, 0x6A, 0x86, 0x6B, /* 0xDC-0xDF */
+	0xB3, 0xC8, 0x86, 0x6C, 0x86, 0x6D, 0x86, 0x6E, /* 0xE0-0xE3 */
+	0x86, 0x6F, 0xB3, 0xC9, 0x86, 0x70, 0x86, 0x71, /* 0xE4-0xE7 */
+	0x86, 0x72, 0x86, 0x73, 0x86, 0x74, 0x86, 0x75, /* 0xE8-0xEB */
+	0x86, 0x76, 0x86, 0x77, 0x86, 0x78, 0x86, 0x79, /* 0xEC-0xEF */
+	0x86, 0x7A, 0x86, 0x81, 0x86, 0x82, 0x86, 0x83, /* 0xF0-0xF3 */
+	0x86, 0x84, 0x86, 0x85, 0x86, 0x86, 0x86, 0x87, /* 0xF4-0xF7 */
+	0x86, 0x88, 0x86, 0x89, 0x86, 0x8A, 0x86, 0x8B, /* 0xF8-0xFB */
+	0x86, 0x8C, 0x86, 0x8D, 0x86, 0x8E, 0x86, 0x8F, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_B1[512] = {
+	0x86, 0x90, 0x86, 0x91, 0x86, 0x92, 0x86, 0x93, /* 0x00-0x03 */
+	0x86, 0x94, 0x86, 0x95, 0x86, 0x96, 0x86, 0x97, /* 0x04-0x07 */
+	0xB3, 0xCA, 0xB3, 0xCB, 0x86, 0x98, 0xB3, 0xCC, /* 0x08-0x0B */
+	0xB3, 0xCD, 0x86, 0x99, 0x86, 0x9A, 0x86, 0x9B, /* 0x0C-0x0F */
+	0xB3, 0xCE, 0x86, 0x9C, 0xB3, 0xCF, 0xB3, 0xD0, /* 0x10-0x13 */
+	0x86, 0x9D, 0x86, 0x9E, 0x86, 0x9F, 0x86, 0xA0, /* 0x14-0x17 */
+	0xB3, 0xD1, 0xB3, 0xD2, 0x86, 0xA1, 0xB3, 0xD3, /* 0x18-0x1B */
+	0xB3, 0xD4, 0xB3, 0xD5, 0x86, 0xA2, 0x86, 0xA3, /* 0x1C-0x1F */
+	0x86, 0xA4, 0x86, 0xA5, 0x86, 0xA6, 0xB3, 0xD6, /* 0x20-0x23 */
+	0xB3, 0xD7, 0xB3, 0xD8, 0x86, 0xA7, 0x86, 0xA8, /* 0x24-0x27 */
+	0xB3, 0xD9, 0x86, 0xA9, 0x86, 0xAA, 0x86, 0xAB, /* 0x28-0x2B */
+	0xB3, 0xDA, 0x86, 0xAC, 0x86, 0xAD, 0x86, 0xAE, /* 0x2C-0x2F */
+	0x86, 0xAF, 0x86, 0xB0, 0x86, 0xB1, 0x86, 0xB2, /* 0x30-0x33 */
+	0xB3, 0xDB, 0xB3, 0xDC, 0x86, 0xB3, 0xB3, 0xDD, /* 0x34-0x37 */
+	0xB3, 0xDE, 0xB3, 0xDF, 0x86, 0xB4, 0x86, 0xB5, /* 0x38-0x3B */
+	0x86, 0xB6, 0x86, 0xB7, 0x86, 0xB8, 0x86, 0xB9, /* 0x3C-0x3F */
+	0xB3, 0xE0, 0xB3, 0xE1, 0x86, 0xBA, 0x86, 0xBB, /* 0x40-0x43 */
+	0xB3, 0xE2, 0x86, 0xBC, 0x86, 0xBD, 0x86, 0xBE, /* 0x44-0x47 */
+	0xB3, 0xE3, 0x86, 0xBF, 0x86, 0xC0, 0x86, 0xC1, /* 0x48-0x4B */
+	0x86, 0xC2, 0x86, 0xC3, 0x86, 0xC4, 0x86, 0xC5, /* 0x4C-0x4F */
+	0xB3, 0xE4, 0xB3, 0xE5, 0x86, 0xC6, 0x86, 0xC7, /* 0x50-0x53 */
+	0xB3, 0xE6, 0xB3, 0xE7, 0x86, 0xC8, 0x86, 0xC9, /* 0x54-0x57 */
+	0xB3, 0xE8, 0x86, 0xCA, 0x86, 0xCB, 0x86, 0xCC, /* 0x58-0x5B */
+	0xB3, 0xE9, 0x86, 0xCD, 0x86, 0xCE, 0x86, 0xCF, /* 0x5C-0x5F */
+	0xB3, 0xEA, 0x86, 0xD0, 0x86, 0xD1, 0x86, 0xD2, /* 0x60-0x63 */
+	0x86, 0xD3, 0x86, 0xD4, 0x86, 0xD5, 0x86, 0xD6, /* 0x64-0x67 */
+	0x86, 0xD7, 0x86, 0xD8, 0x86, 0xD9, 0x86, 0xDA, /* 0x68-0x6B */
+	0x86, 0xDB, 0x86, 0xDC, 0x86, 0xDD, 0x86, 0xDE, /* 0x6C-0x6F */
+	0x86, 0xDF, 0x86, 0xE0, 0x86, 0xE1, 0x86, 0xE2, /* 0x70-0x73 */
+	0x86, 0xE3, 0x86, 0xE4, 0x86, 0xE5, 0x86, 0xE6, /* 0x74-0x77 */
+	0xB3, 0xEB, 0xB3, 0xEC, 0x86, 0xE7, 0x86, 0xE8, /* 0x78-0x7B */
+	0xB3, 0xED, 0x86, 0xE9, 0x86, 0xEA, 0x86, 0xEB, /* 0x7C-0x7F */
+	
+	0xB3, 0xEE, 0x86, 0xEC, 0xB3, 0xEF, 0x86, 0xED, /* 0x80-0x83 */
+	0x86, 0xEE, 0x86, 0xEF, 0x86, 0xF0, 0x86, 0xF1, /* 0x84-0x87 */
+	0xB3, 0xF0, 0xB3, 0xF1, 0x86, 0xF2, 0xB3, 0xF2, /* 0x88-0x8B */
+	0x86, 0xF3, 0xB3, 0xF3, 0x86, 0xF4, 0x86, 0xF5, /* 0x8C-0x8F */
+	0x86, 0xF6, 0x86, 0xF7, 0xB3, 0xF4, 0xB3, 0xF5, /* 0x90-0x93 */
+	0xB3, 0xF6, 0x86, 0xF8, 0x86, 0xF9, 0x86, 0xFA, /* 0x94-0x97 */
+	0xB3, 0xF7, 0x86, 0xFB, 0x86, 0xFC, 0x86, 0xFD, /* 0x98-0x9B */
+	0xB3, 0xF8, 0x86, 0xFE, 0x87, 0x41, 0x87, 0x42, /* 0x9C-0x9F */
+	0x87, 0x43, 0x87, 0x44, 0x87, 0x45, 0x87, 0x46, /* 0xA0-0xA3 */
+	0x87, 0x47, 0x87, 0x48, 0x87, 0x49, 0x87, 0x4A, /* 0xA4-0xA7 */
+	0xB3, 0xF9, 0x87, 0x4B, 0x87, 0x4C, 0x87, 0x4D, /* 0xA8-0xAB */
+	0x87, 0x4E, 0x87, 0x4F, 0x87, 0x50, 0x87, 0x51, /* 0xAC-0xAF */
+	0x87, 0x52, 0x87, 0x53, 0x87, 0x54, 0x87, 0x55, /* 0xB0-0xB3 */
+	0x87, 0x56, 0x87, 0x57, 0x87, 0x58, 0x87, 0x59, /* 0xB4-0xB7 */
+	0x87, 0x5A, 0x87, 0x61, 0x87, 0x62, 0x87, 0x63, /* 0xB8-0xBB */
+	0x87, 0x64, 0x87, 0x65, 0x87, 0x66, 0x87, 0x67, /* 0xBC-0xBF */
+	0x87, 0x68, 0x87, 0x69, 0x87, 0x6A, 0x87, 0x6B, /* 0xC0-0xC3 */
+	0x87, 0x6C, 0x87, 0x6D, 0x87, 0x6E, 0x87, 0x6F, /* 0xC4-0xC7 */
+	0x87, 0x70, 0x87, 0x71, 0x87, 0x72, 0x87, 0x73, /* 0xC8-0xCB */
+	0xB3, 0xFA, 0x87, 0x74, 0x87, 0x75, 0x87, 0x76, /* 0xCC-0xCF */
+	0xB3, 0xFB, 0x87, 0x77, 0x87, 0x78, 0x87, 0x79, /* 0xD0-0xD3 */
+	0xB3, 0xFC, 0x87, 0x7A, 0x87, 0x81, 0x87, 0x82, /* 0xD4-0xD7 */
+	0x87, 0x83, 0x87, 0x84, 0x87, 0x85, 0x87, 0x86, /* 0xD8-0xDB */
+	0xB3, 0xFD, 0xB3, 0xFE, 0x87, 0x87, 0xB4, 0xA1, /* 0xDC-0xDF */
+	0x87, 0x88, 0x87, 0x89, 0x87, 0x8A, 0x87, 0x8B, /* 0xE0-0xE3 */
+	0x87, 0x8C, 0x87, 0x8D, 0x87, 0x8E, 0x87, 0x8F, /* 0xE4-0xE7 */
+	0xB4, 0xA2, 0xB4, 0xA3, 0x87, 0x90, 0x87, 0x91, /* 0xE8-0xEB */
+	0xB4, 0xA4, 0x87, 0x92, 0x87, 0x93, 0x87, 0x94, /* 0xEC-0xEF */
+	0xB4, 0xA5, 0x87, 0x95, 0x87, 0x96, 0x87, 0x97, /* 0xF0-0xF3 */
+	0x87, 0x98, 0x87, 0x99, 0x87, 0x9A, 0x87, 0x9B, /* 0xF4-0xF7 */
+	0x87, 0x9C, 0xB4, 0xA6, 0x87, 0x9D, 0xB4, 0xA7, /* 0xF8-0xFB */
+	0x87, 0x9E, 0xB4, 0xA8, 0x87, 0x9F, 0x87, 0xA0, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_B2[512] = {
+	0x87, 0xA1, 0x87, 0xA2, 0x87, 0xA3, 0x87, 0xA4, /* 0x00-0x03 */
+	0xB4, 0xA9, 0xB4, 0xAA, 0x87, 0xA5, 0x87, 0xA6, /* 0x04-0x07 */
+	0xB4, 0xAB, 0x87, 0xA7, 0x87, 0xA8, 0xB4, 0xAC, /* 0x08-0x0B */
+	0xB4, 0xAD, 0x87, 0xA9, 0x87, 0xAA, 0x87, 0xAB, /* 0x0C-0x0F */
+	0x87, 0xAC, 0x87, 0xAD, 0x87, 0xAE, 0x87, 0xAF, /* 0x10-0x13 */
+	0xB4, 0xAE, 0xB4, 0xAF, 0x87, 0xB0, 0xB4, 0xB0, /* 0x14-0x17 */
+	0x87, 0xB1, 0xB4, 0xB1, 0x87, 0xB2, 0x87, 0xB3, /* 0x18-0x1B */
+	0x87, 0xB4, 0x87, 0xB5, 0x87, 0xB6, 0x87, 0xB7, /* 0x1C-0x1F */
+	0xB4, 0xB2, 0x87, 0xB8, 0x87, 0xB9, 0x87, 0xBA, /* 0x20-0x23 */
+	0x87, 0xBB, 0x87, 0xBC, 0x87, 0xBD, 0x87, 0xBE, /* 0x24-0x27 */
+	0x87, 0xBF, 0x87, 0xC0, 0x87, 0xC1, 0x87, 0xC2, /* 0x28-0x2B */
+	0x87, 0xC3, 0x87, 0xC4, 0x87, 0xC5, 0x87, 0xC6, /* 0x2C-0x2F */
+	0x87, 0xC7, 0x87, 0xC8, 0x87, 0xC9, 0x87, 0xCA, /* 0x30-0x33 */
+	0xB4, 0xB3, 0x87, 0xCB, 0x87, 0xCC, 0x87, 0xCD, /* 0x34-0x37 */
+	0x87, 0xCE, 0x87, 0xCF, 0x87, 0xD0, 0x87, 0xD1, /* 0x38-0x3B */
+	0xB4, 0xB4, 0x87, 0xD2, 0x87, 0xD3, 0x87, 0xD4, /* 0x3C-0x3F */
+	0x87, 0xD5, 0x87, 0xD6, 0x87, 0xD7, 0x87, 0xD8, /* 0x40-0x43 */
+	0x87, 0xD9, 0x87, 0xDA, 0x87, 0xDB, 0x87, 0xDC, /* 0x44-0x47 */
+	0x87, 0xDD, 0x87, 0xDE, 0x87, 0xDF, 0x87, 0xE0, /* 0x48-0x4B */
+	0x87, 0xE1, 0x87, 0xE2, 0x87, 0xE3, 0x87, 0xE4, /* 0x4C-0x4F */
+	0x87, 0xE5, 0x87, 0xE6, 0x87, 0xE7, 0x87, 0xE8, /* 0x50-0x53 */
+	0x87, 0xE9, 0x87, 0xEA, 0x87, 0xEB, 0x87, 0xEC, /* 0x54-0x57 */
+	0xB4, 0xB5, 0x87, 0xED, 0x87, 0xEE, 0x87, 0xEF, /* 0x58-0x5B */
+	0xB4, 0xB6, 0x87, 0xF0, 0x87, 0xF1, 0x87, 0xF2, /* 0x5C-0x5F */
+	0xB4, 0xB7, 0x87, 0xF3, 0x87, 0xF4, 0x87, 0xF5, /* 0x60-0x63 */
+	0x87, 0xF6, 0x87, 0xF7, 0x87, 0xF8, 0x87, 0xF9, /* 0x64-0x67 */
+	0xB4, 0xB8, 0xB4, 0xB9, 0x87, 0xFA, 0x87, 0xFB, /* 0x68-0x6B */
+	0x87, 0xFC, 0x87, 0xFD, 0x87, 0xFE, 0x88, 0x41, /* 0x6C-0x6F */
+	0x88, 0x42, 0x88, 0x43, 0x88, 0x44, 0x88, 0x45, /* 0x70-0x73 */
+	0xB4, 0xBA, 0xB4, 0xBB, 0x88, 0x46, 0x88, 0x47, /* 0x74-0x77 */
+	0x88, 0x48, 0x88, 0x49, 0x88, 0x4A, 0x88, 0x4B, /* 0x78-0x7B */
+	0xB4, 0xBC, 0x88, 0x4C, 0x88, 0x4D, 0x88, 0x4E, /* 0x7C-0x7F */
+	
+	0x88, 0x4F, 0x88, 0x50, 0x88, 0x51, 0x88, 0x52, /* 0x80-0x83 */
+	0xB4, 0xBD, 0xB4, 0xBE, 0x88, 0x53, 0x88, 0x54, /* 0x84-0x87 */
+	0x88, 0x55, 0xB4, 0xBF, 0x88, 0x56, 0x88, 0x57, /* 0x88-0x8B */
+	0x88, 0x58, 0x88, 0x59, 0x88, 0x5A, 0x88, 0x61, /* 0x8C-0x8F */
+	0xB4, 0xC0, 0xB4, 0xC1, 0x88, 0x62, 0x88, 0x63, /* 0x90-0x93 */
+	0xB4, 0xC2, 0x88, 0x64, 0x88, 0x65, 0x88, 0x66, /* 0x94-0x97 */
+	0xB4, 0xC3, 0xB4, 0xC4, 0xB4, 0xC5, 0x88, 0x67, /* 0x98-0x9B */
+	0x88, 0x68, 0x88, 0x69, 0x88, 0x6A, 0x88, 0x6B, /* 0x9C-0x9F */
+	0xB4, 0xC6, 0xB4, 0xC7, 0x88, 0x6C, 0xB4, 0xC8, /* 0xA0-0xA3 */
+	0x88, 0x6D, 0xB4, 0xC9, 0xB4, 0xCA, 0x88, 0x6E, /* 0xA4-0xA7 */
+	0x88, 0x6F, 0x88, 0x70, 0xB4, 0xCB, 0x88, 0x71, /* 0xA8-0xAB */
+	0xB4, 0xCC, 0x88, 0x72, 0x88, 0x73, 0x88, 0x74, /* 0xAC-0xAF */
+	0xB4, 0xCD, 0x88, 0x75, 0x88, 0x76, 0x88, 0x77, /* 0xB0-0xB3 */
+	0xB4, 0xCE, 0x88, 0x78, 0x88, 0x79, 0x88, 0x7A, /* 0xB4-0xB7 */
+	0x88, 0x81, 0x88, 0x82, 0x88, 0x83, 0x88, 0x84, /* 0xB8-0xBB */
+	0x88, 0x85, 0x88, 0x86, 0x88, 0x87, 0x88, 0x88, /* 0xBC-0xBF */
+	0x88, 0x89, 0x88, 0x8A, 0x88, 0x8B, 0x88, 0x8C, /* 0xC0-0xC3 */
+	0x88, 0x8D, 0x88, 0x8E, 0x88, 0x8F, 0x88, 0x90, /* 0xC4-0xC7 */
+	0xB4, 0xCF, 0xB4, 0xD0, 0x88, 0x91, 0x88, 0x92, /* 0xC8-0xCB */
+	0xB4, 0xD1, 0x88, 0x93, 0x88, 0x94, 0x88, 0x95, /* 0xCC-0xCF */
+	0xB4, 0xD2, 0x88, 0x96, 0xB4, 0xD3, 0x88, 0x97, /* 0xD0-0xD3 */
+	0x88, 0x98, 0x88, 0x99, 0x88, 0x9A, 0x88, 0x9B, /* 0xD4-0xD7 */
+	0xB4, 0xD4, 0xB4, 0xD5, 0x88, 0x9C, 0xB4, 0xD6, /* 0xD8-0xDB */
+	0x88, 0x9D, 0xB4, 0xD7, 0x88, 0x9E, 0x88, 0x9F, /* 0xDC-0xDF */
+	0x88, 0xA0, 0x88, 0xA1, 0xB4, 0xD8, 0x88, 0xA2, /* 0xE0-0xE3 */
+	0xB4, 0xD9, 0xB4, 0xDA, 0xB4, 0xDB, 0x88, 0xA3, /* 0xE4-0xE7 */
+	0xB4, 0xDC, 0x88, 0xA4, 0x88, 0xA5, 0xB4, 0xDD, /* 0xE8-0xEB */
+	0xB4, 0xDE, 0xB4, 0xDF, 0xB4, 0xE0, 0xB4, 0xE1, /* 0xEC-0xEF */
+	0x88, 0xA6, 0x88, 0xA7, 0x88, 0xA8, 0xB4, 0xE2, /* 0xF0-0xF3 */
+	0xB4, 0xE3, 0xB4, 0xE4, 0x88, 0xA9, 0xB4, 0xE5, /* 0xF4-0xF7 */
+	0xB4, 0xE6, 0xB4, 0xE7, 0xB4, 0xE8, 0xB4, 0xE9, /* 0xF8-0xFB */
+	0x88, 0xAA, 0x88, 0xAB, 0x88, 0xAC, 0xB4, 0xEA, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_B3[512] = {
+	0xB4, 0xEB, 0xB4, 0xEC, 0x88, 0xAD, 0x88, 0xAE, /* 0x00-0x03 */
+	0xB4, 0xED, 0x88, 0xAF, 0x88, 0xB0, 0x88, 0xB1, /* 0x04-0x07 */
+	0xB4, 0xEE, 0x88, 0xB2, 0x88, 0xB3, 0x88, 0xB4, /* 0x08-0x0B */
+	0x88, 0xB5, 0x88, 0xB6, 0x88, 0xB7, 0x88, 0xB8, /* 0x0C-0x0F */
+	0xB4, 0xEF, 0xB4, 0xF0, 0x88, 0xB9, 0xB4, 0xF1, /* 0x10-0x13 */
+	0xB4, 0xF2, 0xB4, 0xF3, 0x88, 0xBA, 0x88, 0xBB, /* 0x14-0x17 */
+	0x88, 0xBC, 0x88, 0xBD, 0x88, 0xBE, 0x88, 0xBF, /* 0x18-0x1B */
+	0xB4, 0xF4, 0x88, 0xC0, 0x88, 0xC1, 0x88, 0xC2, /* 0x1C-0x1F */
+	0x88, 0xC3, 0x88, 0xC4, 0x88, 0xC5, 0x88, 0xC6, /* 0x20-0x23 */
+	0x88, 0xC7, 0x88, 0xC8, 0x88, 0xC9, 0x88, 0xCA, /* 0x24-0x27 */
+	0x88, 0xCB, 0x88, 0xCC, 0x88, 0xCD, 0x88, 0xCE, /* 0x28-0x2B */
+	0x88, 0xCF, 0x88, 0xD0, 0x88, 0xD1, 0x88, 0xD2, /* 0x2C-0x2F */
+	0x88, 0xD3, 0x88, 0xD4, 0x88, 0xD5, 0x88, 0xD6, /* 0x30-0x33 */
+	0x88, 0xD7, 0x88, 0xD8, 0x88, 0xD9, 0x88, 0xDA, /* 0x34-0x37 */
+	0x88, 0xDB, 0x88, 0xDC, 0x88, 0xDD, 0x88, 0xDE, /* 0x38-0x3B */
+	0x88, 0xDF, 0x88, 0xE0, 0x88, 0xE1, 0x88, 0xE2, /* 0x3C-0x3F */
+	0x88, 0xE3, 0x88, 0xE4, 0x88, 0xE5, 0x88, 0xE6, /* 0x40-0x43 */
+	0x88, 0xE7, 0x88, 0xE8, 0x88, 0xE9, 0x88, 0xEA, /* 0x44-0x47 */
+	0x88, 0xEB, 0x88, 0xEC, 0x88, 0xED, 0x88, 0xEE, /* 0x48-0x4B */
+	0x88, 0xEF, 0x88, 0xF0, 0x88, 0xF1, 0x88, 0xF2, /* 0x4C-0x4F */
+	0x88, 0xF3, 0x88, 0xF4, 0x88, 0xF5, 0x88, 0xF6, /* 0x50-0x53 */
+	0xB4, 0xF5, 0xB4, 0xF6, 0xB4, 0xF7, 0x88, 0xF7, /* 0x54-0x57 */
+	0xB4, 0xF8, 0x88, 0xF8, 0x88, 0xF9, 0xB4, 0xF9, /* 0x58-0x5B */
+	0xB4, 0xFA, 0x88, 0xFA, 0xB4, 0xFB, 0xB4, 0xFC, /* 0x5C-0x5F */
+	0x88, 0xFB, 0x88, 0xFC, 0x88, 0xFD, 0x88, 0xFE, /* 0x60-0x63 */
+	0xB4, 0xFD, 0xB4, 0xFE, 0x89, 0x41, 0xB5, 0xA1, /* 0x64-0x67 */
+	0x89, 0x42, 0xB5, 0xA2, 0x89, 0x43, 0xB5, 0xA3, /* 0x68-0x6B */
+	0x89, 0x44, 0x89, 0x45, 0xB5, 0xA4, 0x89, 0x46, /* 0x6C-0x6F */
+	0xB5, 0xA5, 0xB5, 0xA6, 0x89, 0x47, 0x89, 0x48, /* 0x70-0x73 */
+	0xB5, 0xA7, 0x89, 0x49, 0x89, 0x4A, 0x89, 0x4B, /* 0x74-0x77 */
+	0xB5, 0xA8, 0x89, 0x4C, 0x89, 0x4D, 0x89, 0x4E, /* 0x78-0x7B */
+	0x89, 0x4F, 0x89, 0x50, 0x89, 0x51, 0x89, 0x52, /* 0x7C-0x7F */
+	
+	0xB5, 0xA9, 0xB5, 0xAA, 0x89, 0x53, 0xB5, 0xAB, /* 0x80-0x83 */
+	0xB5, 0xAC, 0xB5, 0xAD, 0x89, 0x54, 0x89, 0x55, /* 0x84-0x87 */
+	0x89, 0x56, 0x89, 0x57, 0x89, 0x58, 0x89, 0x59, /* 0x88-0x8B */
+	0xB5, 0xAE, 0x89, 0x5A, 0x89, 0x61, 0x89, 0x62, /* 0x8C-0x8F */
+	0xB5, 0xAF, 0x89, 0x63, 0x89, 0x64, 0x89, 0x65, /* 0x90-0x93 */
+	0xB5, 0xB0, 0x89, 0x66, 0x89, 0x67, 0x89, 0x68, /* 0x94-0x97 */
+	0x89, 0x69, 0x89, 0x6A, 0x89, 0x6B, 0x89, 0x6C, /* 0x98-0x9B */
+	0x89, 0x6D, 0x89, 0x6E, 0x89, 0x6F, 0x89, 0x70, /* 0x9C-0x9F */
+	0xB5, 0xB1, 0xB5, 0xB2, 0x89, 0x71, 0x89, 0x72, /* 0xA0-0xA3 */
+	0x89, 0x73, 0x89, 0x74, 0x89, 0x75, 0x89, 0x76, /* 0xA4-0xA7 */
+	0xB5, 0xB3, 0x89, 0x77, 0x89, 0x78, 0x89, 0x79, /* 0xA8-0xAB */
+	0xB5, 0xB4, 0x89, 0x7A, 0x89, 0x81, 0x89, 0x82, /* 0xAC-0xAF */
+	0x89, 0x83, 0x89, 0x84, 0x89, 0x85, 0x89, 0x86, /* 0xB0-0xB3 */
+	0x89, 0x87, 0x89, 0x88, 0x89, 0x89, 0x89, 0x8A, /* 0xB4-0xB7 */
+	0x89, 0x8B, 0x89, 0x8C, 0x89, 0x8D, 0x89, 0x8E, /* 0xB8-0xBB */
+	0x89, 0x8F, 0x89, 0x90, 0x89, 0x91, 0x89, 0x92, /* 0xBC-0xBF */
+	0x89, 0x93, 0x89, 0x94, 0x89, 0x95, 0x89, 0x96, /* 0xC0-0xC3 */
+	0xB5, 0xB5, 0xB5, 0xB6, 0x89, 0x97, 0x89, 0x98, /* 0xC4-0xC7 */
+	0xB5, 0xB7, 0x89, 0x99, 0x89, 0x9A, 0xB5, 0xB8, /* 0xC8-0xCB */
+	0xB5, 0xB9, 0x89, 0x9B, 0xB5, 0xBA, 0x89, 0x9C, /* 0xCC-0xCF */
+	0xB5, 0xBB, 0x89, 0x9D, 0x89, 0x9E, 0x89, 0x9F, /* 0xD0-0xD3 */
+	0xB5, 0xBC, 0xB5, 0xBD, 0x89, 0xA0, 0xB5, 0xBE, /* 0xD4-0xD7 */
+	0x89, 0xA1, 0xB5, 0xBF, 0x89, 0xA2, 0xB5, 0xC0, /* 0xD8-0xDB */
+	0x89, 0xA3, 0xB5, 0xC1, 0x89, 0xA4, 0x89, 0xA5, /* 0xDC-0xDF */
+	0xB5, 0xC2, 0x89, 0xA6, 0x89, 0xA7, 0x89, 0xA8, /* 0xE0-0xE3 */
+	0xB5, 0xC3, 0x89, 0xA9, 0x89, 0xAA, 0x89, 0xAB, /* 0xE4-0xE7 */
+	0xB5, 0xC4, 0x89, 0xAC, 0x89, 0xAD, 0x89, 0xAE, /* 0xE8-0xEB */
+	0x89, 0xAF, 0x89, 0xB0, 0x89, 0xB1, 0x89, 0xB2, /* 0xEC-0xEF */
+	0x89, 0xB3, 0x89, 0xB4, 0x89, 0xB5, 0x89, 0xB6, /* 0xF0-0xF3 */
+	0x89, 0xB7, 0x89, 0xB8, 0x89, 0xB9, 0x89, 0xBA, /* 0xF4-0xF7 */
+	0x89, 0xBB, 0x89, 0xBC, 0x89, 0xBD, 0x89, 0xBE, /* 0xF8-0xFB */
+	0xB5, 0xC5, 0x89, 0xBF, 0x89, 0xC0, 0x89, 0xC1, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_B4[512] = {
+	0x89, 0xC2, 0x89, 0xC3, 0x89, 0xC4, 0x89, 0xC5, /* 0x00-0x03 */
+	0x89, 0xC6, 0x89, 0xC7, 0x89, 0xC8, 0x89, 0xC9, /* 0x04-0x07 */
+	0x89, 0xCA, 0x89, 0xCB, 0x89, 0xCC, 0x89, 0xCD, /* 0x08-0x0B */
+	0x89, 0xCE, 0x89, 0xCF, 0x89, 0xD0, 0x89, 0xD1, /* 0x0C-0x0F */
+	0xB5, 0xC6, 0x89, 0xD2, 0x89, 0xD3, 0x89, 0xD4, /* 0x10-0x13 */
+	0x89, 0xD5, 0x89, 0xD6, 0x89, 0xD7, 0x89, 0xD8, /* 0x14-0x17 */
+	0xB5, 0xC7, 0x89, 0xD9, 0x89, 0xDA, 0x89, 0xDB, /* 0x18-0x1B */
+	0xB5, 0xC8, 0x89, 0xDC, 0x89, 0xDD, 0x89, 0xDE, /* 0x1C-0x1F */
+	0xB5, 0xC9, 0x89, 0xDF, 0x89, 0xE0, 0x89, 0xE1, /* 0x20-0x23 */
+	0x89, 0xE2, 0x89, 0xE3, 0x89, 0xE4, 0x89, 0xE5, /* 0x24-0x27 */
+	0xB5, 0xCA, 0xB5, 0xCB, 0x89, 0xE6, 0xB5, 0xCC, /* 0x28-0x2B */
+	0x89, 0xE7, 0x89, 0xE8, 0x89, 0xE9, 0x89, 0xEA, /* 0x2C-0x2F */
+	0x89, 0xEB, 0x89, 0xEC, 0x89, 0xED, 0x89, 0xEE, /* 0x30-0x33 */
+	0xB5, 0xCD, 0x89, 0xEF, 0x89, 0xF0, 0x89, 0xF1, /* 0x34-0x37 */
+	0x89, 0xF2, 0x89, 0xF3, 0x89, 0xF4, 0x89, 0xF5, /* 0x38-0x3B */
+	0x89, 0xF6, 0x89, 0xF7, 0x89, 0xF8, 0x89, 0xF9, /* 0x3C-0x3F */
+	0x89, 0xFA, 0x89, 0xFB, 0x89, 0xFC, 0x89, 0xFD, /* 0x40-0x43 */
+	0x89, 0xFE, 0x8A, 0x41, 0x8A, 0x42, 0x8A, 0x43, /* 0x44-0x47 */
+	0x8A, 0x44, 0x8A, 0x45, 0x8A, 0x46, 0x8A, 0x47, /* 0x48-0x4B */
+	0x8A, 0x48, 0x8A, 0x49, 0x8A, 0x4A, 0x8A, 0x4B, /* 0x4C-0x4F */
+	0xB5, 0xCE, 0xB5, 0xCF, 0x8A, 0x4C, 0x8A, 0x4D, /* 0x50-0x53 */
+	0xB5, 0xD0, 0x8A, 0x4E, 0x8A, 0x4F, 0x8A, 0x50, /* 0x54-0x57 */
+	0xB5, 0xD1, 0x8A, 0x51, 0x8A, 0x52, 0x8A, 0x53, /* 0x58-0x5B */
+	0x8A, 0x54, 0x8A, 0x55, 0x8A, 0x56, 0x8A, 0x57, /* 0x5C-0x5F */
+	0xB5, 0xD2, 0xB5, 0xD3, 0x8A, 0x58, 0xB5, 0xD4, /* 0x60-0x63 */
+	0x8A, 0x59, 0xB5, 0xD5, 0x8A, 0x5A, 0x8A, 0x61, /* 0x64-0x67 */
+	0x8A, 0x62, 0x8A, 0x63, 0x8A, 0x64, 0x8A, 0x65, /* 0x68-0x6B */
+	0xB5, 0xD6, 0x8A, 0x66, 0x8A, 0x67, 0x8A, 0x68, /* 0x6C-0x6F */
+	0x8A, 0x69, 0x8A, 0x6A, 0x8A, 0x6B, 0x8A, 0x6C, /* 0x70-0x73 */
+	0x8A, 0x6D, 0x8A, 0x6E, 0x8A, 0x6F, 0x8A, 0x70, /* 0x74-0x77 */
+	0x8A, 0x71, 0x8A, 0x72, 0x8A, 0x73, 0x8A, 0x74, /* 0x78-0x7B */
+	0x8A, 0x75, 0x8A, 0x76, 0x8A, 0x77, 0x8A, 0x78, /* 0x7C-0x7F */
+	
+	0xB5, 0xD7, 0x8A, 0x79, 0x8A, 0x7A, 0x8A, 0x81, /* 0x80-0x83 */
+	0x8A, 0x82, 0x8A, 0x83, 0x8A, 0x84, 0x8A, 0x85, /* 0x84-0x87 */
+	0xB5, 0xD8, 0x8A, 0x86, 0x8A, 0x87, 0x8A, 0x88, /* 0x88-0x8B */
+	0x8A, 0x89, 0x8A, 0x8A, 0x8A, 0x8B, 0x8A, 0x8C, /* 0x8C-0x8F */
+	0x8A, 0x8D, 0x8A, 0x8E, 0x8A, 0x8F, 0x8A, 0x90, /* 0x90-0x93 */
+	0x8A, 0x91, 0x8A, 0x92, 0x8A, 0x93, 0x8A, 0x94, /* 0x94-0x97 */
+	0x8A, 0x95, 0x8A, 0x96, 0x8A, 0x97, 0x8A, 0x98, /* 0x98-0x9B */
+	0x8A, 0x99, 0xB5, 0xD9, 0x8A, 0x9A, 0x8A, 0x9B, /* 0x9C-0x9F */
+	0x8A, 0x9C, 0x8A, 0x9D, 0x8A, 0x9E, 0x8A, 0x9F, /* 0xA0-0xA3 */
+	0xB5, 0xDA, 0x8A, 0xA0, 0x8A, 0xA1, 0x8A, 0xA2, /* 0xA4-0xA7 */
+	0xB5, 0xDB, 0x8A, 0xA3, 0x8A, 0xA4, 0x8A, 0xA5, /* 0xA8-0xAB */
+	0xB5, 0xDC, 0x8A, 0xA6, 0x8A, 0xA7, 0x8A, 0xA8, /* 0xAC-0xAF */
+	0x8A, 0xA9, 0x8A, 0xAA, 0x8A, 0xAB, 0x8A, 0xAC, /* 0xB0-0xB3 */
+	0x8A, 0xAD, 0xB5, 0xDD, 0x8A, 0xAE, 0xB5, 0xDE, /* 0xB4-0xB7 */
+	0x8A, 0xAF, 0xB5, 0xDF, 0x8A, 0xB0, 0x8A, 0xB1, /* 0xB8-0xBB */
+	0x8A, 0xB2, 0x8A, 0xB3, 0x8A, 0xB4, 0x8A, 0xB5, /* 0xBC-0xBF */
+	0xB5, 0xE0, 0x8A, 0xB6, 0x8A, 0xB7, 0x8A, 0xB8, /* 0xC0-0xC3 */
+	0xB5, 0xE1, 0x8A, 0xB9, 0x8A, 0xBA, 0x8A, 0xBB, /* 0xC4-0xC7 */
+	0xB5, 0xE2, 0x8A, 0xBC, 0x8A, 0xBD, 0x8A, 0xBE, /* 0xC8-0xCB */
+	0x8A, 0xBF, 0x8A, 0xC0, 0x8A, 0xC1, 0x8A, 0xC2, /* 0xCC-0xCF */
+	0xB5, 0xE3, 0x8A, 0xC3, 0x8A, 0xC4, 0x8A, 0xC5, /* 0xD0-0xD3 */
+	0x8A, 0xC6, 0xB5, 0xE4, 0x8A, 0xC7, 0x8A, 0xC8, /* 0xD4-0xD7 */
+	0x8A, 0xC9, 0x8A, 0xCA, 0x8A, 0xCB, 0x8A, 0xCC, /* 0xD8-0xDB */
+	0xB5, 0xE5, 0xB5, 0xE6, 0x8A, 0xCD, 0x8A, 0xCE, /* 0xDC-0xDF */
+	0xB5, 0xE7, 0x8A, 0xCF, 0x8A, 0xD0, 0xB5, 0xE8, /* 0xE0-0xE3 */
+	0xB5, 0xE9, 0x8A, 0xD1, 0xB5, 0xEA, 0x8A, 0xD2, /* 0xE4-0xE7 */
+	0x8A, 0xD3, 0x8A, 0xD4, 0x8A, 0xD5, 0x8A, 0xD6, /* 0xE8-0xEB */
+	0xB5, 0xEB, 0xB5, 0xEC, 0x8A, 0xD7, 0xB5, 0xED, /* 0xEC-0xEF */
+	0x8A, 0xD8, 0xB5, 0xEE, 0x8A, 0xD9, 0x8A, 0xDA, /* 0xF0-0xF3 */
+	0x8A, 0xDB, 0x8A, 0xDC, 0x8A, 0xDD, 0x8A, 0xDE, /* 0xF4-0xF7 */
+	0xB5, 0xEF, 0x8A, 0xDF, 0x8A, 0xE0, 0x8A, 0xE1, /* 0xF8-0xFB */
+	0x8A, 0xE2, 0x8A, 0xE3, 0x8A, 0xE4, 0x8A, 0xE5, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_B5[512] = {
+	0x8A, 0xE6, 0x8A, 0xE7, 0x8A, 0xE8, 0x8A, 0xE9, /* 0x00-0x03 */
+	0x8A, 0xEA, 0x8A, 0xEB, 0x8A, 0xEC, 0x8A, 0xED, /* 0x04-0x07 */
+	0x8A, 0xEE, 0x8A, 0xEF, 0x8A, 0xF0, 0x8A, 0xF1, /* 0x08-0x0B */
+	0x8A, 0xF2, 0x8A, 0xF3, 0x8A, 0xF4, 0x8A, 0xF5, /* 0x0C-0x0F */
+	0x8A, 0xF6, 0x8A, 0xF7, 0x8A, 0xF8, 0x8A, 0xF9, /* 0x10-0x13 */
+	0xB5, 0xF0, 0xB5, 0xF1, 0x8A, 0xFA, 0x8A, 0xFB, /* 0x14-0x17 */
+	0xB5, 0xF2, 0x8A, 0xFC, 0x8A, 0xFD, 0xB5, 0xF3, /* 0x18-0x1B */
+	0xB5, 0xF4, 0x8A, 0xFE, 0x8B, 0x41, 0x8B, 0x42, /* 0x1C-0x1F */
+	0x8B, 0x43, 0x8B, 0x44, 0x8B, 0x45, 0x8B, 0x46, /* 0x20-0x23 */
+	0xB5, 0xF5, 0xB5, 0xF6, 0x8B, 0x47, 0xB5, 0xF7, /* 0x24-0x27 */
+	0xB5, 0xF8, 0xB5, 0xF9, 0xB5, 0xFA, 0x8B, 0x48, /* 0x28-0x2B */
+	0x8B, 0x49, 0x8B, 0x4A, 0x8B, 0x4B, 0x8B, 0x4C, /* 0x2C-0x2F */
+	0xB5, 0xFB, 0xB5, 0xFC, 0x8B, 0x4D, 0x8B, 0x4E, /* 0x30-0x33 */
+	0xB5, 0xFD, 0x8B, 0x4F, 0x8B, 0x50, 0x8B, 0x51, /* 0x34-0x37 */
+	0xB5, 0xFE, 0x8B, 0x52, 0x8B, 0x53, 0x8B, 0x54, /* 0x38-0x3B */
+	0x8B, 0x55, 0x8B, 0x56, 0x8B, 0x57, 0x8B, 0x58, /* 0x3C-0x3F */
+	0xB6, 0xA1, 0xB6, 0xA2, 0x8B, 0x59, 0xB6, 0xA3, /* 0x40-0x43 */
+	0xB6, 0xA4, 0xB6, 0xA5, 0x8B, 0x5A, 0x8B, 0x61, /* 0x44-0x47 */
+	0x8B, 0x62, 0x8B, 0x63, 0x8B, 0x64, 0xB6, 0xA6, /* 0x48-0x4B */
+	0xB6, 0xA7, 0xB6, 0xA8, 0x8B, 0x65, 0x8B, 0x66, /* 0x4C-0x4F */
+	0xB6, 0xA9, 0x8B, 0x67, 0x8B, 0x68, 0x8B, 0x69, /* 0x50-0x53 */
+	0xB6, 0xAA, 0x8B, 0x6A, 0x8B, 0x6B, 0x8B, 0x6C, /* 0x54-0x57 */
+	0x8B, 0x6D, 0x8B, 0x6E, 0x8B, 0x6F, 0x8B, 0x70, /* 0x58-0x5B */
+	0xB6, 0xAB, 0xB6, 0xAC, 0x8B, 0x71, 0xB6, 0xAD, /* 0x5C-0x5F */
+	0xB6, 0xAE, 0xB6, 0xAF, 0x8B, 0x72, 0x8B, 0x73, /* 0x60-0x63 */
+	0x8B, 0x74, 0x8B, 0x75, 0x8B, 0x76, 0x8B, 0x77, /* 0x64-0x67 */
+	0x8B, 0x78, 0x8B, 0x79, 0x8B, 0x7A, 0x8B, 0x81, /* 0x68-0x6B */
+	0x8B, 0x82, 0x8B, 0x83, 0x8B, 0x84, 0x8B, 0x85, /* 0x6C-0x6F */
+	0x8B, 0x86, 0x8B, 0x87, 0x8B, 0x88, 0x8B, 0x89, /* 0x70-0x73 */
+	0x8B, 0x8A, 0x8B, 0x8B, 0x8B, 0x8C, 0x8B, 0x8D, /* 0x74-0x77 */
+	0x8B, 0x8E, 0x8B, 0x8F, 0x8B, 0x90, 0x8B, 0x91, /* 0x78-0x7B */
+	0x8B, 0x92, 0x8B, 0x93, 0x8B, 0x94, 0x8B, 0x95, /* 0x7C-0x7F */
+	
+	0x8B, 0x96, 0x8B, 0x97, 0x8B, 0x98, 0x8B, 0x99, /* 0x80-0x83 */
+	0x8B, 0x9A, 0x8B, 0x9B, 0x8B, 0x9C, 0x8B, 0x9D, /* 0x84-0x87 */
+	0x8B, 0x9E, 0x8B, 0x9F, 0x8B, 0xA0, 0x8B, 0xA1, /* 0x88-0x8B */
+	0x8B, 0xA2, 0x8B, 0xA3, 0x8B, 0xA4, 0x8B, 0xA5, /* 0x8C-0x8F */
+	0x8B, 0xA6, 0x8B, 0xA7, 0x8B, 0xA8, 0x8B, 0xA9, /* 0x90-0x93 */
+	0x8B, 0xAA, 0x8B, 0xAB, 0x8B, 0xAC, 0x8B, 0xAD, /* 0x94-0x97 */
+	0x8B, 0xAE, 0x8B, 0xAF, 0x8B, 0xB0, 0x8B, 0xB1, /* 0x98-0x9B */
+	0x8B, 0xB2, 0x8B, 0xB3, 0x8B, 0xB4, 0x8B, 0xB5, /* 0x9C-0x9F */
+	0xB6, 0xB0, 0xB6, 0xB1, 0x8B, 0xB6, 0x8B, 0xB7, /* 0xA0-0xA3 */
+	0xB6, 0xB2, 0x8B, 0xB8, 0x8B, 0xB9, 0x8B, 0xBA, /* 0xA4-0xA7 */
+	0xB6, 0xB3, 0x8B, 0xBB, 0xB6, 0xB4, 0xB6, 0xB5, /* 0xA8-0xAB */
+	0x8B, 0xBC, 0x8B, 0xBD, 0x8B, 0xBE, 0x8B, 0xBF, /* 0xAC-0xAF */
+	0xB6, 0xB6, 0xB6, 0xB7, 0x8B, 0xC0, 0xB6, 0xB8, /* 0xB0-0xB3 */
+	0xB6, 0xB9, 0xB6, 0xBA, 0x8B, 0xC1, 0x8B, 0xC2, /* 0xB4-0xB7 */
+	0x8B, 0xC3, 0x8B, 0xC4, 0x8B, 0xC5, 0xB6, 0xBB, /* 0xB8-0xBB */
+	0xB6, 0xBC, 0xB6, 0xBD, 0x8B, 0xC6, 0x8B, 0xC7, /* 0xBC-0xBF */
+	0xB6, 0xBE, 0x8B, 0xC8, 0x8B, 0xC9, 0x8B, 0xCA, /* 0xC0-0xC3 */
+	0xB6, 0xBF, 0x8B, 0xCB, 0x8B, 0xCC, 0x8B, 0xCD, /* 0xC4-0xC7 */
+	0x8B, 0xCE, 0x8B, 0xCF, 0x8B, 0xD0, 0x8B, 0xD1, /* 0xC8-0xCB */
+	0xB6, 0xC0, 0xB6, 0xC1, 0x8B, 0xD2, 0xB6, 0xC2, /* 0xCC-0xCF */
+	0xB6, 0xC3, 0xB6, 0xC4, 0x8B, 0xD3, 0x8B, 0xD4, /* 0xD0-0xD3 */
+	0x8B, 0xD5, 0x8B, 0xD6, 0x8B, 0xD7, 0x8B, 0xD8, /* 0xD4-0xD7 */
+	0xB6, 0xC5, 0x8B, 0xD9, 0x8B, 0xDA, 0x8B, 0xDB, /* 0xD8-0xDB */
+	0x8B, 0xDC, 0x8B, 0xDD, 0x8B, 0xDE, 0x8B, 0xDF, /* 0xDC-0xDF */
+	0x8B, 0xE0, 0x8B, 0xE1, 0x8B, 0xE2, 0x8B, 0xE3, /* 0xE0-0xE3 */
+	0x8B, 0xE4, 0x8B, 0xE5, 0x8B, 0xE6, 0x8B, 0xE7, /* 0xE4-0xE7 */
+	0x8B, 0xE8, 0x8B, 0xE9, 0x8B, 0xEA, 0x8B, 0xEB, /* 0xE8-0xEB */
+	0xB6, 0xC6, 0x8B, 0xEC, 0x8B, 0xED, 0x8B, 0xEE, /* 0xEC-0xEF */
+	0x8B, 0xEF, 0x8B, 0xF0, 0x8B, 0xF1, 0x8B, 0xF2, /* 0xF0-0xF3 */
+	0x8B, 0xF3, 0x8B, 0xF4, 0x8B, 0xF5, 0x8B, 0xF6, /* 0xF4-0xF7 */
+	0x8B, 0xF7, 0x8B, 0xF8, 0x8B, 0xF9, 0x8B, 0xFA, /* 0xF8-0xFB */
+	0x8B, 0xFB, 0x8B, 0xFC, 0x8B, 0xFD, 0x8B, 0xFE, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_B6[512] = {
+	0x8C, 0x41, 0x8C, 0x42, 0x8C, 0x43, 0x8C, 0x44, /* 0x00-0x03 */
+	0x8C, 0x45, 0x8C, 0x46, 0x8C, 0x47, 0x8C, 0x48, /* 0x04-0x07 */
+	0x8C, 0x49, 0x8C, 0x4A, 0x8C, 0x4B, 0x8C, 0x4C, /* 0x08-0x0B */
+	0x8C, 0x4D, 0x8C, 0x4E, 0x8C, 0x4F, 0x8C, 0x50, /* 0x0C-0x0F */
+	0xB6, 0xC7, 0xB6, 0xC8, 0x8C, 0x51, 0x8C, 0x52, /* 0x10-0x13 */
+	0xB6, 0xC9, 0x8C, 0x53, 0x8C, 0x54, 0x8C, 0x55, /* 0x14-0x17 */
+	0xB6, 0xCA, 0x8C, 0x56, 0x8C, 0x57, 0x8C, 0x58, /* 0x18-0x1B */
+	0x8C, 0x59, 0x8C, 0x5A, 0x8C, 0x61, 0x8C, 0x62, /* 0x1C-0x1F */
+	0x8C, 0x63, 0x8C, 0x64, 0x8C, 0x65, 0x8C, 0x66, /* 0x20-0x23 */
+	0x8C, 0x67, 0xB6, 0xCB, 0x8C, 0x68, 0x8C, 0x69, /* 0x24-0x27 */
+	0x8C, 0x6A, 0x8C, 0x6B, 0x8C, 0x6C, 0x8C, 0x6D, /* 0x28-0x2B */
+	0xB6, 0xCC, 0x8C, 0x6E, 0x8C, 0x6F, 0x8C, 0x70, /* 0x2C-0x2F */
+	0x8C, 0x71, 0x8C, 0x72, 0x8C, 0x73, 0x8C, 0x74, /* 0x30-0x33 */
+	0xB6, 0xCD, 0x8C, 0x75, 0x8C, 0x76, 0x8C, 0x77, /* 0x34-0x37 */
+	0x8C, 0x78, 0x8C, 0x79, 0x8C, 0x7A, 0x8C, 0x81, /* 0x38-0x3B */
+	0x8C, 0x82, 0x8C, 0x83, 0x8C, 0x84, 0x8C, 0x85, /* 0x3C-0x3F */
+	0x8C, 0x86, 0x8C, 0x87, 0x8C, 0x88, 0x8C, 0x89, /* 0x40-0x43 */
+	0x8C, 0x8A, 0x8C, 0x8B, 0x8C, 0x8C, 0x8C, 0x8D, /* 0x44-0x47 */
+	0xB6, 0xCE, 0x8C, 0x8E, 0x8C, 0x8F, 0x8C, 0x90, /* 0x48-0x4B */
+	0x8C, 0x91, 0x8C, 0x92, 0x8C, 0x93, 0x8C, 0x94, /* 0x4C-0x4F */
+	0x8C, 0x95, 0x8C, 0x96, 0x8C, 0x97, 0x8C, 0x98, /* 0x50-0x53 */
+	0x8C, 0x99, 0x8C, 0x9A, 0x8C, 0x9B, 0x8C, 0x9C, /* 0x54-0x57 */
+	0x8C, 0x9D, 0x8C, 0x9E, 0x8C, 0x9F, 0x8C, 0xA0, /* 0x58-0x5B */
+	0x8C, 0xA1, 0x8C, 0xA2, 0x8C, 0xA3, 0x8C, 0xA4, /* 0x5C-0x5F */
+	0x8C, 0xA5, 0x8C, 0xA6, 0x8C, 0xA7, 0x8C, 0xA8, /* 0x60-0x63 */
+	0xB6, 0xCF, 0x8C, 0xA9, 0x8C, 0xAA, 0x8C, 0xAB, /* 0x64-0x67 */
+	0xB6, 0xD0, 0x8C, 0xAC, 0x8C, 0xAD, 0x8C, 0xAE, /* 0x68-0x6B */
+	0x8C, 0xAF, 0x8C, 0xB0, 0x8C, 0xB1, 0x8C, 0xB2, /* 0x6C-0x6F */
+	0x8C, 0xB3, 0x8C, 0xB4, 0x8C, 0xB5, 0x8C, 0xB6, /* 0x70-0x73 */
+	0x8C, 0xB7, 0x8C, 0xB8, 0x8C, 0xB9, 0x8C, 0xBA, /* 0x74-0x77 */
+	0x8C, 0xBB, 0x8C, 0xBC, 0x8C, 0xBD, 0x8C, 0xBE, /* 0x78-0x7B */
+	0x8C, 0xBF, 0x8C, 0xC0, 0x8C, 0xC1, 0x8C, 0xC2, /* 0x7C-0x7F */
+	
+	0x8C, 0xC3, 0x8C, 0xC4, 0x8C, 0xC5, 0x8C, 0xC6, /* 0x80-0x83 */
+	0x8C, 0xC7, 0x8C, 0xC8, 0x8C, 0xC9, 0x8C, 0xCA, /* 0x84-0x87 */
+	0x8C, 0xCB, 0x8C, 0xCC, 0x8C, 0xCD, 0x8C, 0xCE, /* 0x88-0x8B */
+	0x8C, 0xCF, 0x8C, 0xD0, 0x8C, 0xD1, 0x8C, 0xD2, /* 0x8C-0x8F */
+	0x8C, 0xD3, 0x8C, 0xD4, 0x8C, 0xD5, 0x8C, 0xD6, /* 0x90-0x93 */
+	0x8C, 0xD7, 0x8C, 0xD8, 0x8C, 0xD9, 0x8C, 0xDA, /* 0x94-0x97 */
+	0x8C, 0xDB, 0x8C, 0xDC, 0x8C, 0xDD, 0x8C, 0xDE, /* 0x98-0x9B */
+	0xB6, 0xD1, 0xB6, 0xD2, 0x8C, 0xDF, 0x8C, 0xE0, /* 0x9C-0x9F */
+	0xB6, 0xD3, 0x8C, 0xE1, 0x8C, 0xE2, 0x8C, 0xE3, /* 0xA0-0xA3 */
+	0xB6, 0xD4, 0x8C, 0xE4, 0x8C, 0xE5, 0x8C, 0xE6, /* 0xA4-0xA7 */
+	0x8C, 0xE7, 0x8C, 0xE8, 0x8C, 0xE9, 0xB6, 0xD5, /* 0xA8-0xAB */
+	0xB6, 0xD6, 0x8C, 0xEA, 0x8C, 0xEB, 0x8C, 0xEC, /* 0xAC-0xAF */
+	0x8C, 0xED, 0xB6, 0xD7, 0x8C, 0xEE, 0x8C, 0xEF, /* 0xB0-0xB3 */
+	0x8C, 0xF0, 0x8C, 0xF1, 0x8C, 0xF2, 0x8C, 0xF3, /* 0xB4-0xB7 */
+	0x8C, 0xF4, 0x8C, 0xF5, 0x8C, 0xF6, 0x8C, 0xF7, /* 0xB8-0xBB */
+	0x8C, 0xF8, 0x8C, 0xF9, 0x8C, 0xFA, 0x8C, 0xFB, /* 0xBC-0xBF */
+	0x8C, 0xFC, 0x8C, 0xFD, 0x8C, 0xFE, 0x8D, 0x41, /* 0xC0-0xC3 */
+	0x8D, 0x42, 0x8D, 0x43, 0x8D, 0x44, 0x8D, 0x45, /* 0xC4-0xC7 */
+	0x8D, 0x46, 0x8D, 0x47, 0x8D, 0x48, 0x8D, 0x49, /* 0xC8-0xCB */
+	0x8D, 0x4A, 0x8D, 0x4B, 0x8D, 0x4C, 0x8D, 0x4D, /* 0xCC-0xCF */
+	0x8D, 0x4E, 0x8D, 0x4F, 0x8D, 0x50, 0x8D, 0x51, /* 0xD0-0xD3 */
+	0xB6, 0xD8, 0x8D, 0x52, 0x8D, 0x53, 0x8D, 0x54, /* 0xD4-0xD7 */
+	0x8D, 0x55, 0x8D, 0x56, 0x8D, 0x57, 0x8D, 0x58, /* 0xD8-0xDB */
+	0x8D, 0x59, 0x8D, 0x5A, 0x8D, 0x61, 0x8D, 0x62, /* 0xDC-0xDF */
+	0x8D, 0x63, 0x8D, 0x64, 0x8D, 0x65, 0x8D, 0x66, /* 0xE0-0xE3 */
+	0x8D, 0x67, 0x8D, 0x68, 0x8D, 0x69, 0x8D, 0x6A, /* 0xE4-0xE7 */
+	0x8D, 0x6B, 0x8D, 0x6C, 0x8D, 0x6D, 0x8D, 0x6E, /* 0xE8-0xEB */
+	0x8D, 0x6F, 0x8D, 0x70, 0x8D, 0x71, 0x8D, 0x72, /* 0xEC-0xEF */
+	0xB6, 0xD9, 0x8D, 0x73, 0x8D, 0x74, 0x8D, 0x75, /* 0xF0-0xF3 */
+	0xB6, 0xDA, 0x8D, 0x76, 0x8D, 0x77, 0x8D, 0x78, /* 0xF4-0xF7 */
+	0xB6, 0xDB, 0x8D, 0x79, 0x8D, 0x7A, 0x8D, 0x81, /* 0xF8-0xFB */
+	0x8D, 0x82, 0x8D, 0x83, 0x8D, 0x84, 0x8D, 0x85, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_B7[512] = {
+	0xB6, 0xDC, 0xB6, 0xDD, 0x8D, 0x86, 0x8D, 0x87, /* 0x00-0x03 */
+	0x8D, 0x88, 0xB6, 0xDE, 0x8D, 0x89, 0x8D, 0x8A, /* 0x04-0x07 */
+	0x8D, 0x8B, 0x8D, 0x8C, 0x8D, 0x8D, 0x8D, 0x8E, /* 0x08-0x0B */
+	0x8D, 0x8F, 0x8D, 0x90, 0x8D, 0x91, 0x8D, 0x92, /* 0x0C-0x0F */
+	0x8D, 0x93, 0x8D, 0x94, 0x8D, 0x95, 0x8D, 0x96, /* 0x10-0x13 */
+	0x8D, 0x97, 0x8D, 0x98, 0x8D, 0x99, 0x8D, 0x9A, /* 0x14-0x17 */
+	0x8D, 0x9B, 0x8D, 0x9C, 0x8D, 0x9D, 0x8D, 0x9E, /* 0x18-0x1B */
+	0x8D, 0x9F, 0x8D, 0xA0, 0x8D, 0xA1, 0x8D, 0xA2, /* 0x1C-0x1F */
+	0x8D, 0xA3, 0x8D, 0xA4, 0x8D, 0xA5, 0x8D, 0xA6, /* 0x20-0x23 */
+	0x8D, 0xA7, 0x8D, 0xA8, 0x8D, 0xA9, 0x8D, 0xAA, /* 0x24-0x27 */
+	0xB6, 0xDF, 0xB6, 0xE0, 0x8D, 0xAB, 0x8D, 0xAC, /* 0x28-0x2B */
+	0xB6, 0xE1, 0x8D, 0xAD, 0x8D, 0xAE, 0xB6, 0xE2, /* 0x2C-0x2F */
+	0xB6, 0xE3, 0x8D, 0xAF, 0x8D, 0xB0, 0x8D, 0xB1, /* 0x30-0x33 */
+	0x8D, 0xB2, 0x8D, 0xB3, 0x8D, 0xB4, 0x8D, 0xB5, /* 0x34-0x37 */
+	0xB6, 0xE4, 0xB6, 0xE5, 0x8D, 0xB6, 0xB6, 0xE6, /* 0x38-0x3B */
+	0x8D, 0xB7, 0x8D, 0xB8, 0x8D, 0xB9, 0x8D, 0xBA, /* 0x3C-0x3F */
+	0x8D, 0xBB, 0x8D, 0xBC, 0x8D, 0xBD, 0x8D, 0xBE, /* 0x40-0x43 */
+	0xB6, 0xE7, 0x8D, 0xBF, 0x8D, 0xC0, 0x8D, 0xC1, /* 0x44-0x47 */
+	0xB6, 0xE8, 0x8D, 0xC2, 0x8D, 0xC3, 0x8D, 0xC4, /* 0x48-0x4B */
+	0xB6, 0xE9, 0x8D, 0xC5, 0x8D, 0xC6, 0x8D, 0xC7, /* 0x4C-0x4F */
+	0x8D, 0xC8, 0x8D, 0xC9, 0x8D, 0xCA, 0x8D, 0xCB, /* 0x50-0x53 */
+	0xB6, 0xEA, 0xB6, 0xEB, 0x8D, 0xCC, 0x8D, 0xCD, /* 0x54-0x57 */
+	0x8D, 0xCE, 0x8D, 0xCF, 0x8D, 0xD0, 0x8D, 0xD1, /* 0x58-0x5B */
+	0x8D, 0xD2, 0x8D, 0xD3, 0x8D, 0xD4, 0x8D, 0xD5, /* 0x5C-0x5F */
+	0xB6, 0xEC, 0x8D, 0xD6, 0x8D, 0xD7, 0x8D, 0xD8, /* 0x60-0x63 */
+	0xB6, 0xED, 0x8D, 0xD9, 0x8D, 0xDA, 0x8D, 0xDB, /* 0x64-0x67 */
+	0xB6, 0xEE, 0x8D, 0xDC, 0x8D, 0xDD, 0x8D, 0xDE, /* 0x68-0x6B */
+	0x8D, 0xDF, 0x8D, 0xE0, 0x8D, 0xE1, 0x8D, 0xE2, /* 0x6C-0x6F */
+	0xB6, 0xEF, 0xB6, 0xF0, 0x8D, 0xE3, 0xB6, 0xF1, /* 0x70-0x73 */
+	0x8D, 0xE4, 0xB6, 0xF2, 0x8D, 0xE5, 0x8D, 0xE6, /* 0x74-0x77 */
+	0x8D, 0xE7, 0x8D, 0xE8, 0x8D, 0xE9, 0x8D, 0xEA, /* 0x78-0x7B */
+	0xB6, 0xF3, 0xB6, 0xF4, 0x8D, 0xEB, 0x8D, 0xEC, /* 0x7C-0x7F */
+	
+	0xB6, 0xF5, 0x8D, 0xED, 0x8D, 0xEE, 0x8D, 0xEF, /* 0x80-0x83 */
+	0xB6, 0xF6, 0x8D, 0xF0, 0x8D, 0xF1, 0x8D, 0xF2, /* 0x84-0x87 */
+	0x8D, 0xF3, 0x8D, 0xF4, 0x8D, 0xF5, 0x8D, 0xF6, /* 0x88-0x8B */
+	0xB6, 0xF7, 0xB6, 0xF8, 0x8D, 0xF7, 0xB6, 0xF9, /* 0x8C-0x8F */
+	0xB6, 0xFA, 0xB6, 0xFB, 0xB6, 0xFC, 0x8D, 0xF8, /* 0x90-0x93 */
+	0x8D, 0xF9, 0x8D, 0xFA, 0xB6, 0xFD, 0xB6, 0xFE, /* 0x94-0x97 */
+	0xB7, 0xA1, 0xB7, 0xA2, 0x8D, 0xFB, 0x8D, 0xFC, /* 0x98-0x9B */
+	0xB7, 0xA3, 0x8D, 0xFD, 0x8D, 0xFE, 0x8E, 0x41, /* 0x9C-0x9F */
+	0xB7, 0xA4, 0x8E, 0x42, 0x8E, 0x43, 0x8E, 0x44, /* 0xA0-0xA3 */
+	0x8E, 0x45, 0x8E, 0x46, 0x8E, 0x47, 0x8E, 0x48, /* 0xA4-0xA7 */
+	0xB7, 0xA5, 0xB7, 0xA6, 0x8E, 0x49, 0xB7, 0xA7, /* 0xA8-0xAB */
+	0xB7, 0xA8, 0xB7, 0xA9, 0x8E, 0x4A, 0x8E, 0x4B, /* 0xAC-0xAF */
+	0x8E, 0x4C, 0x8E, 0x4D, 0x8E, 0x4E, 0x8E, 0x4F, /* 0xB0-0xB3 */
+	0xB7, 0xAA, 0xB7, 0xAB, 0x8E, 0x50, 0x8E, 0x51, /* 0xB4-0xB7 */
+	0xB7, 0xAC, 0x8E, 0x52, 0x8E, 0x53, 0x8E, 0x54, /* 0xB8-0xBB */
+	0x8E, 0x55, 0x8E, 0x56, 0x8E, 0x57, 0x8E, 0x58, /* 0xBC-0xBF */
+	0x8E, 0x59, 0x8E, 0x5A, 0x8E, 0x61, 0x8E, 0x62, /* 0xC0-0xC3 */
+	0x8E, 0x63, 0x8E, 0x64, 0x8E, 0x65, 0xB7, 0xAD, /* 0xC4-0xC7 */
+	0x8E, 0x66, 0xB7, 0xAE, 0x8E, 0x67, 0x8E, 0x68, /* 0xC8-0xCB */
+	0x8E, 0x69, 0x8E, 0x6A, 0x8E, 0x6B, 0x8E, 0x6C, /* 0xCC-0xCF */
+	0x8E, 0x6D, 0x8E, 0x6E, 0x8E, 0x6F, 0x8E, 0x70, /* 0xD0-0xD3 */
+	0x8E, 0x71, 0x8E, 0x72, 0x8E, 0x73, 0x8E, 0x74, /* 0xD4-0xD7 */
+	0x8E, 0x75, 0x8E, 0x76, 0x8E, 0x77, 0x8E, 0x78, /* 0xD8-0xDB */
+	0x8E, 0x79, 0x8E, 0x7A, 0x8E, 0x81, 0x8E, 0x82, /* 0xDC-0xDF */
+	0x8E, 0x83, 0x8E, 0x84, 0x8E, 0x85, 0x8E, 0x86, /* 0xE0-0xE3 */
+	0x8E, 0x87, 0x8E, 0x88, 0x8E, 0x89, 0x8E, 0x8A, /* 0xE4-0xE7 */
+	0x8E, 0x8B, 0x8E, 0x8C, 0x8E, 0x8D, 0x8E, 0x8E, /* 0xE8-0xEB */
+	0xB7, 0xAF, 0xB7, 0xB0, 0x8E, 0x8F, 0x8E, 0x90, /* 0xEC-0xEF */
+	0xB7, 0xB1, 0x8E, 0x91, 0x8E, 0x92, 0x8E, 0x93, /* 0xF0-0xF3 */
+	0xB7, 0xB2, 0x8E, 0x94, 0x8E, 0x95, 0x8E, 0x96, /* 0xF4-0xF7 */
+	0x8E, 0x97, 0x8E, 0x98, 0x8E, 0x99, 0x8E, 0x9A, /* 0xF8-0xFB */
+	0xB7, 0xB3, 0xB7, 0xB4, 0x8E, 0x9B, 0xB7, 0xB5, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_B8[512] = {
+	0xB7, 0xB6, 0xB7, 0xB7, 0x8E, 0x9C, 0x8E, 0x9D, /* 0x00-0x03 */
+	0x8E, 0x9E, 0x8E, 0x9F, 0x8E, 0xA0, 0xB7, 0xB8, /* 0x04-0x07 */
+	0xB7, 0xB9, 0xB7, 0xBA, 0x8E, 0xA1, 0x8E, 0xA2, /* 0x08-0x0B */
+	0xB7, 0xBB, 0x8E, 0xA3, 0x8E, 0xA4, 0x8E, 0xA5, /* 0x0C-0x0F */
+	0xB7, 0xBC, 0x8E, 0xA6, 0x8E, 0xA7, 0x8E, 0xA8, /* 0x10-0x13 */
+	0x8E, 0xA9, 0x8E, 0xAA, 0x8E, 0xAB, 0x8E, 0xAC, /* 0x14-0x17 */
+	0xB7, 0xBD, 0xB7, 0xBE, 0x8E, 0xAD, 0xB7, 0xBF, /* 0x18-0x1B */
+	0x8E, 0xAE, 0xB7, 0xC0, 0x8E, 0xAF, 0x8E, 0xB0, /* 0x1C-0x1F */
+	0x8E, 0xB1, 0x8E, 0xB2, 0x8E, 0xB3, 0x8E, 0xB4, /* 0x20-0x23 */
+	0xB7, 0xC1, 0xB7, 0xC2, 0x8E, 0xB5, 0x8E, 0xB6, /* 0x24-0x27 */
+	0xB7, 0xC3, 0x8E, 0xB7, 0x8E, 0xB8, 0x8E, 0xB9, /* 0x28-0x2B */
+	0xB7, 0xC4, 0x8E, 0xBA, 0x8E, 0xBB, 0x8E, 0xBC, /* 0x2C-0x2F */
+	0x8E, 0xBD, 0x8E, 0xBE, 0x8E, 0xBF, 0x8E, 0xC0, /* 0x30-0x33 */
+	0xB7, 0xC5, 0xB7, 0xC6, 0x8E, 0xC1, 0xB7, 0xC7, /* 0x34-0x37 */
+	0xB7, 0xC8, 0xB7, 0xC9, 0x8E, 0xC2, 0x8E, 0xC3, /* 0x38-0x3B */
+	0x8E, 0xC4, 0x8E, 0xC5, 0x8E, 0xC6, 0x8E, 0xC7, /* 0x3C-0x3F */
+	0xB7, 0xCA, 0x8E, 0xC8, 0x8E, 0xC9, 0x8E, 0xCA, /* 0x40-0x43 */
+	0xB7, 0xCB, 0x8E, 0xCB, 0x8E, 0xCC, 0x8E, 0xCD, /* 0x44-0x47 */
+	0x8E, 0xCE, 0x8E, 0xCF, 0x8E, 0xD0, 0x8E, 0xD1, /* 0x48-0x4B */
+	0x8E, 0xD2, 0x8E, 0xD3, 0x8E, 0xD4, 0x8E, 0xD5, /* 0x4C-0x4F */
+	0x8E, 0xD6, 0xB7, 0xCC, 0x8E, 0xD7, 0xB7, 0xCD, /* 0x50-0x53 */
+	0x8E, 0xD8, 0x8E, 0xD9, 0x8E, 0xDA, 0x8E, 0xDB, /* 0x54-0x57 */
+	0x8E, 0xDC, 0x8E, 0xDD, 0x8E, 0xDE, 0x8E, 0xDF, /* 0x58-0x5B */
+	0xB7, 0xCE, 0xB7, 0xCF, 0x8E, 0xE0, 0x8E, 0xE1, /* 0x5C-0x5F */
+	0xB7, 0xD0, 0x8E, 0xE2, 0x8E, 0xE3, 0x8E, 0xE4, /* 0x60-0x63 */
+	0xB7, 0xD1, 0x8E, 0xE5, 0x8E, 0xE6, 0x8E, 0xE7, /* 0x64-0x67 */
+	0x8E, 0xE8, 0x8E, 0xE9, 0x8E, 0xEA, 0x8E, 0xEB, /* 0x68-0x6B */
+	0xB7, 0xD2, 0xB7, 0xD3, 0x8E, 0xEC, 0xB7, 0xD4, /* 0x6C-0x6F */
+	0x8E, 0xED, 0xB7, 0xD5, 0x8E, 0xEE, 0x8E, 0xEF, /* 0x70-0x73 */
+	0x8E, 0xF0, 0x8E, 0xF1, 0x8E, 0xF2, 0x8E, 0xF3, /* 0x74-0x77 */
+	0xB7, 0xD6, 0x8E, 0xF4, 0x8E, 0xF5, 0x8E, 0xF6, /* 0x78-0x7B */
+	0xB7, 0xD7, 0x8E, 0xF7, 0x8E, 0xF8, 0x8E, 0xF9, /* 0x7C-0x7F */
+	
+	0x8E, 0xFA, 0x8E, 0xFB, 0x8E, 0xFC, 0x8E, 0xFD, /* 0x80-0x83 */
+	0x8E, 0xFE, 0x8F, 0x41, 0x8F, 0x42, 0x8F, 0x43, /* 0x84-0x87 */
+	0x8F, 0x44, 0x8F, 0x45, 0x8F, 0x46, 0x8F, 0x47, /* 0x88-0x8B */
+	0x8F, 0x48, 0xB7, 0xD8, 0x8F, 0x49, 0x8F, 0x4A, /* 0x8C-0x8F */
+	0x8F, 0x4B, 0x8F, 0x4C, 0x8F, 0x4D, 0x8F, 0x4E, /* 0x90-0x93 */
+	0x8F, 0x4F, 0x8F, 0x50, 0x8F, 0x51, 0x8F, 0x52, /* 0x94-0x97 */
+	0x8F, 0x53, 0x8F, 0x54, 0x8F, 0x55, 0x8F, 0x56, /* 0x98-0x9B */
+	0x8F, 0x57, 0x8F, 0x58, 0x8F, 0x59, 0x8F, 0x5A, /* 0x9C-0x9F */
+	0x8F, 0x61, 0x8F, 0x62, 0x8F, 0x63, 0x8F, 0x64, /* 0xA0-0xA3 */
+	0x8F, 0x65, 0x8F, 0x66, 0x8F, 0x67, 0x8F, 0x68, /* 0xA4-0xA7 */
+	0xB7, 0xD9, 0x8F, 0x69, 0x8F, 0x6A, 0x8F, 0x6B, /* 0xA8-0xAB */
+	0x8F, 0x6C, 0x8F, 0x6D, 0x8F, 0x6E, 0x8F, 0x6F, /* 0xAC-0xAF */
+	0xB7, 0xDA, 0x8F, 0x70, 0x8F, 0x71, 0x8F, 0x72, /* 0xB0-0xB3 */
+	0xB7, 0xDB, 0x8F, 0x73, 0x8F, 0x74, 0x8F, 0x75, /* 0xB4-0xB7 */
+	0xB7, 0xDC, 0x8F, 0x76, 0x8F, 0x77, 0x8F, 0x78, /* 0xB8-0xBB */
+	0x8F, 0x79, 0x8F, 0x7A, 0x8F, 0x81, 0x8F, 0x82, /* 0xBC-0xBF */
+	0xB7, 0xDD, 0xB7, 0xDE, 0x8F, 0x83, 0xB7, 0xDF, /* 0xC0-0xC3 */
+	0x8F, 0x84, 0xB7, 0xE0, 0x8F, 0x85, 0x8F, 0x86, /* 0xC4-0xC7 */
+	0x8F, 0x87, 0x8F, 0x88, 0x8F, 0x89, 0x8F, 0x8A, /* 0xC8-0xCB */
+	0xB7, 0xE1, 0x8F, 0x8B, 0x8F, 0x8C, 0x8F, 0x8D, /* 0xCC-0xCF */
+	0xB7, 0xE2, 0x8F, 0x8E, 0x8F, 0x8F, 0x8F, 0x90, /* 0xD0-0xD3 */
+	0xB7, 0xE3, 0x8F, 0x91, 0x8F, 0x92, 0x8F, 0x93, /* 0xD4-0xD7 */
+	0x8F, 0x94, 0x8F, 0x95, 0x8F, 0x96, 0x8F, 0x97, /* 0xD8-0xDB */
+	0x8F, 0x98, 0xB7, 0xE4, 0x8F, 0x99, 0xB7, 0xE5, /* 0xDC-0xDF */
+	0x8F, 0x9A, 0xB7, 0xE6, 0x8F, 0x9B, 0x8F, 0x9C, /* 0xE0-0xE3 */
+	0x8F, 0x9D, 0x8F, 0x9E, 0x8F, 0x9F, 0x8F, 0xA0, /* 0xE4-0xE7 */
+	0xB7, 0xE7, 0xB7, 0xE8, 0x8F, 0xA1, 0x8F, 0xA2, /* 0xE8-0xEB */
+	0xB7, 0xE9, 0x8F, 0xA3, 0x8F, 0xA4, 0x8F, 0xA5, /* 0xEC-0xEF */
+	0xB7, 0xEA, 0x8F, 0xA6, 0x8F, 0xA7, 0x8F, 0xA8, /* 0xF0-0xF3 */
+	0x8F, 0xA9, 0x8F, 0xAA, 0x8F, 0xAB, 0x8F, 0xAC, /* 0xF4-0xF7 */
+	0xB7, 0xEB, 0xB7, 0xEC, 0x8F, 0xAD, 0xB7, 0xED, /* 0xF8-0xFB */
+	0x8F, 0xAE, 0xB7, 0xEE, 0x8F, 0xAF, 0x8F, 0xB0, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_B9[512] = {
+	0x8F, 0xB1, 0x8F, 0xB2, 0x8F, 0xB3, 0x8F, 0xB4, /* 0x00-0x03 */
+	0xB7, 0xEF, 0x8F, 0xB5, 0x8F, 0xB6, 0x8F, 0xB7, /* 0x04-0x07 */
+	0x8F, 0xB8, 0x8F, 0xB9, 0x8F, 0xBA, 0x8F, 0xBB, /* 0x08-0x0B */
+	0x8F, 0xBC, 0x8F, 0xBD, 0x8F, 0xBE, 0x8F, 0xBF, /* 0x0C-0x0F */
+	0x8F, 0xC0, 0x8F, 0xC1, 0x8F, 0xC2, 0x8F, 0xC3, /* 0x10-0x13 */
+	0x8F, 0xC4, 0x8F, 0xC5, 0x8F, 0xC6, 0x8F, 0xC7, /* 0x14-0x17 */
+	0xB7, 0xF0, 0x8F, 0xC8, 0x8F, 0xC9, 0x8F, 0xCA, /* 0x18-0x1B */
+	0x8F, 0xCB, 0x8F, 0xCC, 0x8F, 0xCD, 0x8F, 0xCE, /* 0x1C-0x1F */
+	0xB7, 0xF1, 0x8F, 0xCF, 0x8F, 0xD0, 0x8F, 0xD1, /* 0x20-0x23 */
+	0x8F, 0xD2, 0x8F, 0xD3, 0x8F, 0xD4, 0x8F, 0xD5, /* 0x24-0x27 */
+	0x8F, 0xD6, 0x8F, 0xD7, 0x8F, 0xD8, 0x8F, 0xD9, /* 0x28-0x2B */
+	0x8F, 0xDA, 0x8F, 0xDB, 0x8F, 0xDC, 0x8F, 0xDD, /* 0x2C-0x2F */
+	0x8F, 0xDE, 0x8F, 0xDF, 0x8F, 0xE0, 0x8F, 0xE1, /* 0x30-0x33 */
+	0x8F, 0xE2, 0x8F, 0xE3, 0x8F, 0xE4, 0x8F, 0xE5, /* 0x34-0x37 */
+	0x8F, 0xE6, 0x8F, 0xE7, 0x8F, 0xE8, 0x8F, 0xE9, /* 0x38-0x3B */
+	0xB7, 0xF2, 0xB7, 0xF3, 0x8F, 0xEA, 0x8F, 0xEB, /* 0x3C-0x3F */
+	0xB7, 0xF4, 0x8F, 0xEC, 0x8F, 0xED, 0x8F, 0xEE, /* 0x40-0x43 */
+	0xB7, 0xF5, 0x8F, 0xEF, 0x8F, 0xF0, 0x8F, 0xF1, /* 0x44-0x47 */
+	0x8F, 0xF2, 0x8F, 0xF3, 0x8F, 0xF4, 0x8F, 0xF5, /* 0x48-0x4B */
+	0xB7, 0xF6, 0x8F, 0xF6, 0x8F, 0xF7, 0xB7, 0xF7, /* 0x4C-0x4F */
+	0x8F, 0xF8, 0xB7, 0xF8, 0x8F, 0xF9, 0x8F, 0xFA, /* 0x50-0x53 */
+	0x8F, 0xFB, 0x8F, 0xFC, 0x8F, 0xFD, 0x8F, 0xFE, /* 0x54-0x57 */
+	0xB7, 0xF9, 0xB7, 0xFA, 0x90, 0x41, 0x90, 0x42, /* 0x58-0x5B */
+	0xB7, 0xFB, 0x90, 0x43, 0x90, 0x44, 0x90, 0x45, /* 0x5C-0x5F */
+	0xB7, 0xFC, 0x90, 0x46, 0x90, 0x47, 0x90, 0x48, /* 0x60-0x63 */
+	0x90, 0x49, 0x90, 0x4A, 0x90, 0x4B, 0x90, 0x4C, /* 0x64-0x67 */
+	0xB7, 0xFD, 0xB7, 0xFE, 0x90, 0x4D, 0xB8, 0xA1, /* 0x68-0x6B */
+	0x90, 0x4E, 0xB8, 0xA2, 0x90, 0x4F, 0x90, 0x50, /* 0x6C-0x6F */
+	0x90, 0x51, 0x90, 0x52, 0x90, 0x53, 0x90, 0x54, /* 0x70-0x73 */
+	0xB8, 0xA3, 0xB8, 0xA4, 0x90, 0x55, 0x90, 0x56, /* 0x74-0x77 */
+	0xB8, 0xA5, 0x90, 0x57, 0x90, 0x58, 0x90, 0x59, /* 0x78-0x7B */
+	0xB8, 0xA6, 0x90, 0x5A, 0x90, 0x61, 0x90, 0x62, /* 0x7C-0x7F */
+	
+	0x90, 0x63, 0x90, 0x64, 0x90, 0x65, 0x90, 0x66, /* 0x80-0x83 */
+	0xB8, 0xA7, 0xB8, 0xA8, 0x90, 0x67, 0xB8, 0xA9, /* 0x84-0x87 */
+	0x90, 0x68, 0xB8, 0xAA, 0xB8, 0xAB, 0x90, 0x69, /* 0x88-0x8B */
+	0x90, 0x6A, 0xB8, 0xAC, 0xB8, 0xAD, 0x90, 0x6B, /* 0x8C-0x8F */
+	0x90, 0x6C, 0x90, 0x6D, 0x90, 0x6E, 0x90, 0x6F, /* 0x90-0x93 */
+	0x90, 0x70, 0x90, 0x71, 0x90, 0x72, 0x90, 0x73, /* 0x94-0x97 */
+	0x90, 0x74, 0x90, 0x75, 0x90, 0x76, 0x90, 0x77, /* 0x98-0x9B */
+	0x90, 0x78, 0x90, 0x79, 0x90, 0x7A, 0x90, 0x81, /* 0x9C-0x9F */
+	0x90, 0x82, 0x90, 0x83, 0x90, 0x84, 0x90, 0x85, /* 0xA0-0xA3 */
+	0x90, 0x86, 0x90, 0x87, 0x90, 0x88, 0x90, 0x89, /* 0xA4-0xA7 */
+	0x90, 0x8A, 0x90, 0x8B, 0x90, 0x8C, 0x90, 0x8D, /* 0xA8-0xAB */
+	0xB8, 0xAE, 0xB8, 0xAF, 0x90, 0x8E, 0x90, 0x8F, /* 0xAC-0xAF */
+	0xB8, 0xB0, 0x90, 0x90, 0x90, 0x91, 0x90, 0x92, /* 0xB0-0xB3 */
+	0xB8, 0xB1, 0x90, 0x93, 0x90, 0x94, 0x90, 0x95, /* 0xB4-0xB7 */
+	0x90, 0x96, 0x90, 0x97, 0x90, 0x98, 0x90, 0x99, /* 0xB8-0xBB */
+	0xB8, 0xB2, 0xB8, 0xB3, 0x90, 0x9A, 0xB8, 0xB4, /* 0xBC-0xBF */
+	0x90, 0x9B, 0xB8, 0xB5, 0x90, 0x9C, 0x90, 0x9D, /* 0xC0-0xC3 */
+	0x90, 0x9E, 0x90, 0x9F, 0x90, 0xA0, 0x90, 0xA1, /* 0xC4-0xC7 */
+	0xB8, 0xB6, 0xB8, 0xB7, 0x90, 0xA2, 0x90, 0xA3, /* 0xC8-0xCB */
+	0xB8, 0xB8, 0x90, 0xA4, 0xB8, 0xB9, 0xB8, 0xBA, /* 0xCC-0xCF */
+	0xB8, 0xBB, 0xB8, 0xBC, 0xB8, 0xBD, 0x90, 0xA5, /* 0xD0-0xD3 */
+	0x90, 0xA6, 0x90, 0xA7, 0x90, 0xA8, 0x90, 0xA9, /* 0xD4-0xD7 */
+	0xB8, 0xBE, 0xB8, 0xBF, 0x90, 0xAA, 0xB8, 0xC0, /* 0xD8-0xDB */
+	0x90, 0xAB, 0xB8, 0xC1, 0xB8, 0xC2, 0x90, 0xAC, /* 0xDC-0xDF */
+	0x90, 0xAD, 0xB8, 0xC3, 0x90, 0xAE, 0xB8, 0xC4, /* 0xE0-0xE3 */
+	0xB8, 0xC5, 0xB8, 0xC6, 0x90, 0xAF, 0x90, 0xB0, /* 0xE4-0xE7 */
+	0xB8, 0xC7, 0x90, 0xB1, 0x90, 0xB2, 0x90, 0xB3, /* 0xE8-0xEB */
+	0xB8, 0xC8, 0x90, 0xB4, 0x90, 0xB5, 0x90, 0xB6, /* 0xEC-0xEF */
+	0x90, 0xB7, 0x90, 0xB8, 0x90, 0xB9, 0x90, 0xBA, /* 0xF0-0xF3 */
+	0xB8, 0xC9, 0xB8, 0xCA, 0x90, 0xBB, 0xB8, 0xCB, /* 0xF4-0xF7 */
+	0xB8, 0xCC, 0xB8, 0xCD, 0xB8, 0xCE, 0x90, 0xBC, /* 0xF8-0xFB */
+	0x90, 0xBD, 0x90, 0xBE, 0x90, 0xBF, 0x90, 0xC0, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_BA[512] = {
+	0xB8, 0xCF, 0xB8, 0xD0, 0x90, 0xC1, 0x90, 0xC2, /* 0x00-0x03 */
+	0x90, 0xC3, 0x90, 0xC4, 0x90, 0xC5, 0x90, 0xC6, /* 0x04-0x07 */
+	0xB8, 0xD1, 0x90, 0xC7, 0x90, 0xC8, 0x90, 0xC9, /* 0x08-0x0B */
+	0x90, 0xCA, 0x90, 0xCB, 0x90, 0xCC, 0x90, 0xCD, /* 0x0C-0x0F */
+	0x90, 0xCE, 0x90, 0xCF, 0x90, 0xD0, 0x90, 0xD1, /* 0x10-0x13 */
+	0x90, 0xD2, 0xB8, 0xD2, 0x90, 0xD3, 0x90, 0xD4, /* 0x14-0x17 */
+	0x90, 0xD5, 0x90, 0xD6, 0x90, 0xD7, 0x90, 0xD8, /* 0x18-0x1B */
+	0x90, 0xD9, 0x90, 0xDA, 0x90, 0xDB, 0x90, 0xDC, /* 0x1C-0x1F */
+	0x90, 0xDD, 0x90, 0xDE, 0x90, 0xDF, 0x90, 0xE0, /* 0x20-0x23 */
+	0x90, 0xE1, 0x90, 0xE2, 0x90, 0xE3, 0x90, 0xE4, /* 0x24-0x27 */
+	0x90, 0xE5, 0x90, 0xE6, 0x90, 0xE7, 0x90, 0xE8, /* 0x28-0x2B */
+	0x90, 0xE9, 0x90, 0xEA, 0x90, 0xEB, 0x90, 0xEC, /* 0x2C-0x2F */
+	0x90, 0xED, 0x90, 0xEE, 0x90, 0xEF, 0x90, 0xF0, /* 0x30-0x33 */
+	0x90, 0xF1, 0x90, 0xF2, 0x90, 0xF3, 0x90, 0xF4, /* 0x34-0x37 */
+	0xB8, 0xD3, 0xB8, 0xD4, 0x90, 0xF5, 0x90, 0xF6, /* 0x38-0x3B */
+	0xB8, 0xD5, 0x90, 0xF7, 0x90, 0xF8, 0x90, 0xF9, /* 0x3C-0x3F */
+	0xB8, 0xD6, 0x90, 0xFA, 0xB8, 0xD7, 0x90, 0xFB, /* 0x40-0x43 */
+	0x90, 0xFC, 0x90, 0xFD, 0x90, 0xFE, 0x91, 0x41, /* 0x44-0x47 */
+	0xB8, 0xD8, 0xB8, 0xD9, 0x91, 0x42, 0xB8, 0xDA, /* 0x48-0x4B */
+	0x91, 0x43, 0xB8, 0xDB, 0xB8, 0xDC, 0x91, 0x44, /* 0x4C-0x4F */
+	0x91, 0x45, 0x91, 0x46, 0x91, 0x47, 0xB8, 0xDD, /* 0x50-0x53 */
+	0xB8, 0xDE, 0xB8, 0xDF, 0x91, 0x48, 0x91, 0x49, /* 0x54-0x57 */
+	0xB8, 0xE0, 0x91, 0x4A, 0x91, 0x4B, 0x91, 0x4C, /* 0x58-0x5B */
+	0xB8, 0xE1, 0x91, 0x4D, 0x91, 0x4E, 0x91, 0x4F, /* 0x5C-0x5F */
+	0x91, 0x50, 0x91, 0x51, 0x91, 0x52, 0x91, 0x53, /* 0x60-0x63 */
+	0xB8, 0xE2, 0xB8, 0xE3, 0x91, 0x54, 0xB8, 0xE4, /* 0x64-0x67 */
+	0xB8, 0xE5, 0xB8, 0xE6, 0x91, 0x55, 0x91, 0x56, /* 0x68-0x6B */
+	0x91, 0x57, 0x91, 0x58, 0x91, 0x59, 0x91, 0x5A, /* 0x6C-0x6F */
+	0xB8, 0xE7, 0xB8, 0xE8, 0x91, 0x61, 0x91, 0x62, /* 0x70-0x73 */
+	0xB8, 0xE9, 0x91, 0x63, 0x91, 0x64, 0x91, 0x65, /* 0x74-0x77 */
+	0xB8, 0xEA, 0x91, 0x66, 0x91, 0x67, 0x91, 0x68, /* 0x78-0x7B */
+	0x91, 0x69, 0x91, 0x6A, 0x91, 0x6B, 0x91, 0x6C, /* 0x7C-0x7F */
+	
+	0x91, 0x6D, 0x91, 0x6E, 0x91, 0x6F, 0xB8, 0xEB, /* 0x80-0x83 */
+	0xB8, 0xEC, 0xB8, 0xED, 0x91, 0x70, 0xB8, 0xEE, /* 0x84-0x87 */
+	0x91, 0x71, 0x91, 0x72, 0x91, 0x73, 0x91, 0x74, /* 0x88-0x8B */
+	0xB8, 0xEF, 0x91, 0x75, 0x91, 0x76, 0x91, 0x77, /* 0x8C-0x8F */
+	0x91, 0x78, 0x91, 0x79, 0x91, 0x7A, 0x91, 0x81, /* 0x90-0x93 */
+	0x91, 0x82, 0x91, 0x83, 0x91, 0x84, 0x91, 0x85, /* 0x94-0x97 */
+	0x91, 0x86, 0x91, 0x87, 0x91, 0x88, 0x91, 0x89, /* 0x98-0x9B */
+	0x91, 0x8A, 0x91, 0x8B, 0x91, 0x8C, 0x91, 0x8D, /* 0x9C-0x9F */
+	0x91, 0x8E, 0x91, 0x8F, 0x91, 0x90, 0x91, 0x91, /* 0xA0-0xA3 */
+	0x91, 0x92, 0x91, 0x93, 0x91, 0x94, 0x91, 0x95, /* 0xA4-0xA7 */
+	0xB8, 0xF0, 0xB8, 0xF1, 0x91, 0x96, 0xB8, 0xF2, /* 0xA8-0xAB */
+	0xB8, 0xF3, 0x91, 0x97, 0x91, 0x98, 0x91, 0x99, /* 0xAC-0xAF */
+	0xB8, 0xF4, 0x91, 0x9A, 0xB8, 0xF5, 0x91, 0x9B, /* 0xB0-0xB3 */
+	0x91, 0x9C, 0x91, 0x9D, 0x91, 0x9E, 0x91, 0x9F, /* 0xB4-0xB7 */
+	0xB8, 0xF6, 0xB8, 0xF7, 0x91, 0xA0, 0xB8, 0xF8, /* 0xB8-0xBB */
+	0x91, 0xA1, 0xB8, 0xF9, 0x91, 0xA2, 0x91, 0xA3, /* 0xBC-0xBF */
+	0x91, 0xA4, 0x91, 0xA5, 0x91, 0xA6, 0x91, 0xA7, /* 0xC0-0xC3 */
+	0xB8, 0xFA, 0x91, 0xA8, 0x91, 0xA9, 0x91, 0xAA, /* 0xC4-0xC7 */
+	0xB8, 0xFB, 0x91, 0xAB, 0x91, 0xAC, 0x91, 0xAD, /* 0xC8-0xCB */
+	0x91, 0xAE, 0x91, 0xAF, 0x91, 0xB0, 0x91, 0xB1, /* 0xCC-0xCF */
+	0x91, 0xB2, 0x91, 0xB3, 0x91, 0xB4, 0x91, 0xB5, /* 0xD0-0xD3 */
+	0x91, 0xB6, 0x91, 0xB7, 0x91, 0xB8, 0x91, 0xB9, /* 0xD4-0xD7 */
+	0xB8, 0xFC, 0xB8, 0xFD, 0x91, 0xBA, 0x91, 0xBB, /* 0xD8-0xDB */
+	0x91, 0xBC, 0x91, 0xBD, 0x91, 0xBE, 0x91, 0xBF, /* 0xDC-0xDF */
+	0x91, 0xC0, 0x91, 0xC1, 0x91, 0xC2, 0x91, 0xC3, /* 0xE0-0xE3 */
+	0x91, 0xC4, 0x91, 0xC5, 0x91, 0xC6, 0x91, 0xC7, /* 0xE4-0xE7 */
+	0x91, 0xC8, 0x91, 0xC9, 0x91, 0xCA, 0x91, 0xCB, /* 0xE8-0xEB */
+	0x91, 0xCC, 0x91, 0xCD, 0x91, 0xCE, 0x91, 0xCF, /* 0xEC-0xEF */
+	0x91, 0xD0, 0x91, 0xD1, 0x91, 0xD2, 0x91, 0xD3, /* 0xF0-0xF3 */
+	0x91, 0xD4, 0x91, 0xD5, 0x91, 0xD6, 0x91, 0xD7, /* 0xF4-0xF7 */
+	0x91, 0xD8, 0x91, 0xD9, 0x91, 0xDA, 0x91, 0xDB, /* 0xF8-0xFB */
+	0xB8, 0xFE, 0x91, 0xDC, 0x91, 0xDD, 0x91, 0xDE, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_BB[512] = {
+	0xB9, 0xA1, 0x91, 0xDF, 0x91, 0xE0, 0x91, 0xE1, /* 0x00-0x03 */
+	0xB9, 0xA2, 0x91, 0xE2, 0x91, 0xE3, 0x91, 0xE4, /* 0x04-0x07 */
+	0x91, 0xE5, 0x91, 0xE6, 0x91, 0xE7, 0x91, 0xE8, /* 0x08-0x0B */
+	0x91, 0xE9, 0xB9, 0xA3, 0x91, 0xEA, 0xB9, 0xA4, /* 0x0C-0x0F */
+	0x91, 0xEB, 0xB9, 0xA5, 0x91, 0xEC, 0x91, 0xED, /* 0x10-0x13 */
+	0x91, 0xEE, 0x91, 0xEF, 0x91, 0xF0, 0x91, 0xF1, /* 0x14-0x17 */
+	0xB9, 0xA6, 0x91, 0xF2, 0x91, 0xF3, 0x91, 0xF4, /* 0x18-0x1B */
+	0xB9, 0xA7, 0x91, 0xF5, 0x91, 0xF6, 0x91, 0xF7, /* 0x1C-0x1F */
+	0xB9, 0xA8, 0x91, 0xF8, 0x91, 0xF9, 0x91, 0xFA, /* 0x20-0x23 */
+	0x91, 0xFB, 0x91, 0xFC, 0x91, 0xFD, 0x91, 0xFE, /* 0x24-0x27 */
+	0x92, 0x41, 0xB9, 0xA9, 0x92, 0x42, 0xB9, 0xAA, /* 0x28-0x2B */
+	0x92, 0x43, 0x92, 0x44, 0x92, 0x45, 0x92, 0x46, /* 0x2C-0x2F */
+	0x92, 0x47, 0x92, 0x48, 0x92, 0x49, 0x92, 0x4A, /* 0x30-0x33 */
+	0xB9, 0xAB, 0xB9, 0xAC, 0xB9, 0xAD, 0x92, 0x4B, /* 0x34-0x37 */
+	0xB9, 0xAE, 0x92, 0x4C, 0x92, 0x4D, 0xB9, 0xAF, /* 0x38-0x3B */
+	0xB9, 0xB0, 0xB9, 0xB1, 0xB9, 0xB2, 0x92, 0x4E, /* 0x3C-0x3F */
+	0x92, 0x4F, 0x92, 0x50, 0x92, 0x51, 0x92, 0x52, /* 0x40-0x43 */
+	0xB9, 0xB3, 0xB9, 0xB4, 0x92, 0x53, 0xB9, 0xB5, /* 0x44-0x47 */
+	0x92, 0x54, 0xB9, 0xB6, 0x92, 0x55, 0x92, 0x56, /* 0x48-0x4B */
+	0x92, 0x57, 0xB9, 0xB7, 0x92, 0x58, 0xB9, 0xB8, /* 0x4C-0x4F */
+	0xB9, 0xB9, 0x92, 0x59, 0x92, 0x5A, 0x92, 0x61, /* 0x50-0x53 */
+	0xB9, 0xBA, 0x92, 0x62, 0x92, 0x63, 0x92, 0x64, /* 0x54-0x57 */
+	0xB9, 0xBB, 0x92, 0x65, 0x92, 0x66, 0x92, 0x67, /* 0x58-0x5B */
+	0x92, 0x68, 0x92, 0x69, 0x92, 0x6A, 0x92, 0x6B, /* 0x5C-0x5F */
+	0x92, 0x6C, 0xB9, 0xBC, 0x92, 0x6D, 0xB9, 0xBD, /* 0x60-0x63 */
+	0x92, 0x6E, 0x92, 0x6F, 0x92, 0x70, 0x92, 0x71, /* 0x64-0x67 */
+	0x92, 0x72, 0x92, 0x73, 0x92, 0x74, 0x92, 0x75, /* 0x68-0x6B */
+	0xB9, 0xBE, 0x92, 0x76, 0x92, 0x77, 0x92, 0x78, /* 0x6C-0x6F */
+	0x92, 0x79, 0x92, 0x7A, 0x92, 0x81, 0x92, 0x82, /* 0x70-0x73 */
+	0x92, 0x83, 0x92, 0x84, 0x92, 0x85, 0x92, 0x86, /* 0x74-0x77 */
+	0x92, 0x87, 0x92, 0x88, 0x92, 0x89, 0x92, 0x8A, /* 0x78-0x7B */
+	0x92, 0x8B, 0x92, 0x8C, 0x92, 0x8D, 0x92, 0x8E, /* 0x7C-0x7F */
+	
+	0x92, 0x8F, 0x92, 0x90, 0x92, 0x91, 0x92, 0x92, /* 0x80-0x83 */
+	0x92, 0x93, 0x92, 0x94, 0x92, 0x95, 0x92, 0x96, /* 0x84-0x87 */
+	0xB9, 0xBF, 0x92, 0x97, 0x92, 0x98, 0x92, 0x99, /* 0x88-0x8B */
+	0xB9, 0xC0, 0x92, 0x9A, 0x92, 0x9B, 0x92, 0x9C, /* 0x8C-0x8F */
+	0xB9, 0xC1, 0x92, 0x9D, 0x92, 0x9E, 0x92, 0x9F, /* 0x90-0x93 */
+	0x92, 0xA0, 0x92, 0xA1, 0x92, 0xA2, 0x92, 0xA3, /* 0x94-0x97 */
+	0x92, 0xA4, 0x92, 0xA5, 0x92, 0xA6, 0x92, 0xA7, /* 0x98-0x9B */
+	0x92, 0xA8, 0x92, 0xA9, 0x92, 0xAA, 0x92, 0xAB, /* 0x9C-0x9F */
+	0x92, 0xAC, 0x92, 0xAD, 0x92, 0xAE, 0x92, 0xAF, /* 0xA0-0xA3 */
+	0xB9, 0xC2, 0x92, 0xB0, 0x92, 0xB1, 0x92, 0xB2, /* 0xA4-0xA7 */
+	0xB9, 0xC3, 0x92, 0xB3, 0x92, 0xB4, 0x92, 0xB5, /* 0xA8-0xAB */
+	0xB9, 0xC4, 0x92, 0xB6, 0x92, 0xB7, 0x92, 0xB8, /* 0xAC-0xAF */
+	0x92, 0xB9, 0x92, 0xBA, 0x92, 0xBB, 0x92, 0xBC, /* 0xB0-0xB3 */
+	0xB9, 0xC5, 0x92, 0xBD, 0x92, 0xBE, 0xB9, 0xC6, /* 0xB4-0xB7 */
+	0x92, 0xBF, 0x92, 0xC0, 0x92, 0xC1, 0x92, 0xC2, /* 0xB8-0xBB */
+	0x92, 0xC3, 0x92, 0xC4, 0x92, 0xC5, 0x92, 0xC6, /* 0xBC-0xBF */
+	0xB9, 0xC7, 0x92, 0xC7, 0x92, 0xC8, 0x92, 0xC9, /* 0xC0-0xC3 */
+	0xB9, 0xC8, 0x92, 0xCA, 0x92, 0xCB, 0x92, 0xCC, /* 0xC4-0xC7 */
+	0xB9, 0xC9, 0x92, 0xCD, 0x92, 0xCE, 0x92, 0xCF, /* 0xC8-0xCB */
+	0x92, 0xD0, 0x92, 0xD1, 0x92, 0xD2, 0x92, 0xD3, /* 0xCC-0xCF */
+	0xB9, 0xCA, 0x92, 0xD4, 0x92, 0xD5, 0xB9, 0xCB, /* 0xD0-0xD3 */
+	0x92, 0xD6, 0x92, 0xD7, 0x92, 0xD8, 0x92, 0xD9, /* 0xD4-0xD7 */
+	0x92, 0xDA, 0x92, 0xDB, 0x92, 0xDC, 0x92, 0xDD, /* 0xD8-0xDB */
+	0x92, 0xDE, 0x92, 0xDF, 0x92, 0xE0, 0x92, 0xE1, /* 0xDC-0xDF */
+	0x92, 0xE2, 0x92, 0xE3, 0x92, 0xE4, 0x92, 0xE5, /* 0xE0-0xE3 */
+	0x92, 0xE6, 0x92, 0xE7, 0x92, 0xE8, 0x92, 0xE9, /* 0xE4-0xE7 */
+	0x92, 0xEA, 0x92, 0xEB, 0x92, 0xEC, 0x92, 0xED, /* 0xE8-0xEB */
+	0x92, 0xEE, 0x92, 0xEF, 0x92, 0xF0, 0x92, 0xF1, /* 0xEC-0xEF */
+	0x92, 0xF2, 0x92, 0xF3, 0x92, 0xF4, 0x92, 0xF5, /* 0xF0-0xF3 */
+	0x92, 0xF6, 0x92, 0xF7, 0x92, 0xF8, 0x92, 0xF9, /* 0xF4-0xF7 */
+	0xB9, 0xCC, 0xB9, 0xCD, 0x92, 0xFA, 0x92, 0xFB, /* 0xF8-0xFB */
+	0xB9, 0xCE, 0x92, 0xFC, 0x92, 0xFD, 0xB9, 0xCF, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_BC[512] = {
+	0xB9, 0xD0, 0x92, 0xFE, 0xB9, 0xD1, 0x93, 0x41, /* 0x00-0x03 */
+	0x93, 0x42, 0x93, 0x43, 0x93, 0x44, 0x93, 0x45, /* 0x04-0x07 */
+	0xB9, 0xD2, 0xB9, 0xD3, 0x93, 0x46, 0xB9, 0xD4, /* 0x08-0x0B */
+	0xB9, 0xD5, 0xB9, 0xD6, 0x93, 0x47, 0xB9, 0xD7, /* 0x0C-0x0F */
+	0x93, 0x48, 0xB9, 0xD8, 0x93, 0x49, 0x93, 0x4A, /* 0x10-0x13 */
+	0xB9, 0xD9, 0xB9, 0xDA, 0xB9, 0xDB, 0xB9, 0xDC, /* 0x14-0x17 */
+	0xB9, 0xDD, 0x93, 0x4B, 0x93, 0x4C, 0xB9, 0xDE, /* 0x18-0x1B */
+	0xB9, 0xDF, 0xB9, 0xE0, 0xB9, 0xE1, 0xB9, 0xE2, /* 0x1C-0x1F */
+	0x93, 0x4D, 0x93, 0x4E, 0x93, 0x4F, 0x93, 0x50, /* 0x20-0x23 */
+	0xB9, 0xE3, 0xB9, 0xE4, 0x93, 0x51, 0xB9, 0xE5, /* 0x24-0x27 */
+	0x93, 0x52, 0xB9, 0xE6, 0x93, 0x53, 0x93, 0x54, /* 0x28-0x2B */
+	0x93, 0x55, 0xB9, 0xE7, 0x93, 0x56, 0x93, 0x57, /* 0x2C-0x2F */
+	0xB9, 0xE8, 0xB9, 0xE9, 0x93, 0x58, 0x93, 0x59, /* 0x30-0x33 */
+	0xB9, 0xEA, 0x93, 0x5A, 0x93, 0x61, 0x93, 0x62, /* 0x34-0x37 */
+	0xB9, 0xEB, 0x93, 0x63, 0x93, 0x64, 0x93, 0x65, /* 0x38-0x3B */
+	0x93, 0x66, 0x93, 0x67, 0x93, 0x68, 0x93, 0x69, /* 0x3C-0x3F */
+	0xB9, 0xEC, 0xB9, 0xED, 0x93, 0x6A, 0xB9, 0xEE, /* 0x40-0x43 */
+	0xB9, 0xEF, 0xB9, 0xF0, 0x93, 0x6B, 0x93, 0x6C, /* 0x44-0x47 */
+	0x93, 0x6D, 0xB9, 0xF1, 0x93, 0x6E, 0x93, 0x6F, /* 0x48-0x4B */
+	0xB9, 0xF2, 0xB9, 0xF3, 0x93, 0x70, 0x93, 0x71, /* 0x4C-0x4F */
+	0xB9, 0xF4, 0x93, 0x72, 0x93, 0x73, 0x93, 0x74, /* 0x50-0x53 */
+	0x93, 0x75, 0x93, 0x76, 0x93, 0x77, 0x93, 0x78, /* 0x54-0x57 */
+	0x93, 0x79, 0x93, 0x7A, 0x93, 0x81, 0x93, 0x82, /* 0x58-0x5B */
+	0x93, 0x83, 0xB9, 0xF5, 0x93, 0x84, 0x93, 0x85, /* 0x5C-0x5F */
+	0x93, 0x86, 0x93, 0x87, 0x93, 0x88, 0x93, 0x89, /* 0x60-0x63 */
+	0x93, 0x8A, 0x93, 0x8B, 0x93, 0x8C, 0x93, 0x8D, /* 0x64-0x67 */
+	0x93, 0x8E, 0x93, 0x8F, 0x93, 0x90, 0x93, 0x91, /* 0x68-0x6B */
+	0x93, 0x92, 0x93, 0x93, 0x93, 0x94, 0x93, 0x95, /* 0x6C-0x6F */
+	0x93, 0x96, 0x93, 0x97, 0x93, 0x98, 0x93, 0x99, /* 0x70-0x73 */
+	0x93, 0x9A, 0x93, 0x9B, 0x93, 0x9C, 0x93, 0x9D, /* 0x74-0x77 */
+	0x93, 0x9E, 0x93, 0x9F, 0x93, 0xA0, 0x93, 0xA1, /* 0x78-0x7B */
+	0x93, 0xA2, 0x93, 0xA3, 0x93, 0xA4, 0x93, 0xA5, /* 0x7C-0x7F */
+	
+	0x93, 0xA6, 0x93, 0xA7, 0x93, 0xA8, 0x93, 0xA9, /* 0x80-0x83 */
+	0xB9, 0xF6, 0xB9, 0xF7, 0x93, 0xAA, 0x93, 0xAB, /* 0x84-0x87 */
+	0xB9, 0xF8, 0x93, 0xAC, 0x93, 0xAD, 0xB9, 0xF9, /* 0x88-0x8B */
+	0xB9, 0xFA, 0x93, 0xAE, 0xB9, 0xFB, 0x93, 0xAF, /* 0x8C-0x8F */
+	0x93, 0xB0, 0x93, 0xB1, 0x93, 0xB2, 0x93, 0xB3, /* 0x90-0x93 */
+	0xB9, 0xFC, 0xB9, 0xFD, 0x93, 0xB4, 0xB9, 0xFE, /* 0x94-0x97 */
+	0x93, 0xB5, 0xBA, 0xA1, 0xBA, 0xA2, 0x93, 0xB6, /* 0x98-0x9B */
+	0x93, 0xB7, 0x93, 0xB8, 0x93, 0xB9, 0x93, 0xBA, /* 0x9C-0x9F */
+	0xBA, 0xA3, 0xBA, 0xA4, 0x93, 0xBB, 0x93, 0xBC, /* 0xA0-0xA3 */
+	0xBA, 0xA5, 0x93, 0xBD, 0x93, 0xBE, 0xBA, 0xA6, /* 0xA4-0xA7 */
+	0xBA, 0xA7, 0x93, 0xBF, 0x93, 0xC0, 0x93, 0xC1, /* 0xA8-0xAB */
+	0x93, 0xC2, 0x93, 0xC3, 0x93, 0xC4, 0x93, 0xC5, /* 0xAC-0xAF */
+	0xBA, 0xA8, 0xBA, 0xA9, 0x93, 0xC6, 0xBA, 0xAA, /* 0xB0-0xB3 */
+	0xBA, 0xAB, 0xBA, 0xAC, 0x93, 0xC7, 0x93, 0xC8, /* 0xB4-0xB7 */
+	0x93, 0xC9, 0x93, 0xCA, 0x93, 0xCB, 0x93, 0xCC, /* 0xB8-0xBB */
+	0xBA, 0xAD, 0xBA, 0xAE, 0x93, 0xCD, 0x93, 0xCE, /* 0xBC-0xBF */
+	0xBA, 0xAF, 0x93, 0xCF, 0x93, 0xD0, 0x93, 0xD1, /* 0xC0-0xC3 */
+	0xBA, 0xB0, 0x93, 0xD2, 0x93, 0xD3, 0x93, 0xD4, /* 0xC4-0xC7 */
+	0x93, 0xD5, 0x93, 0xD6, 0x93, 0xD7, 0x93, 0xD8, /* 0xC8-0xCB */
+	0x93, 0xD9, 0xBA, 0xB1, 0x93, 0xDA, 0xBA, 0xB2, /* 0xCC-0xCF */
+	0xBA, 0xB3, 0xBA, 0xB4, 0x93, 0xDB, 0x93, 0xDC, /* 0xD0-0xD3 */
+	0x93, 0xDD, 0xBA, 0xB5, 0x93, 0xDE, 0x93, 0xDF, /* 0xD4-0xD7 */
+	0xBA, 0xB6, 0x93, 0xE0, 0x93, 0xE1, 0x93, 0xE2, /* 0xD8-0xDB */
+	0xBA, 0xB7, 0x93, 0xE3, 0x93, 0xE4, 0x93, 0xE5, /* 0xDC-0xDF */
+	0x93, 0xE6, 0x93, 0xE7, 0x93, 0xE8, 0x93, 0xE9, /* 0xE0-0xE3 */
+	0x93, 0xEA, 0x93, 0xEB, 0x93, 0xEC, 0x93, 0xED, /* 0xE4-0xE7 */
+	0x93, 0xEE, 0x93, 0xEF, 0x93, 0xF0, 0x93, 0xF1, /* 0xE8-0xEB */
+	0x93, 0xF2, 0x93, 0xF3, 0x93, 0xF4, 0x93, 0xF5, /* 0xEC-0xEF */
+	0x93, 0xF6, 0x93, 0xF7, 0x93, 0xF8, 0x93, 0xF9, /* 0xF0-0xF3 */
+	0xBA, 0xB8, 0xBA, 0xB9, 0xBA, 0xBA, 0x93, 0xFA, /* 0xF4-0xF7 */
+	0xBA, 0xBB, 0x93, 0xFB, 0x93, 0xFC, 0x93, 0xFD, /* 0xF8-0xFB */
+	0xBA, 0xBC, 0x93, 0xFE, 0x94, 0x41, 0x94, 0x42, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_BD[512] = {
+	0x94, 0x43, 0x94, 0x44, 0x94, 0x45, 0x94, 0x46, /* 0x00-0x03 */
+	0xBA, 0xBD, 0xBA, 0xBE, 0x94, 0x47, 0xBA, 0xBF, /* 0x04-0x07 */
+	0x94, 0x48, 0xBA, 0xC0, 0x94, 0x49, 0x94, 0x4A, /* 0x08-0x0B */
+	0x94, 0x4B, 0x94, 0x4C, 0x94, 0x4D, 0x94, 0x4E, /* 0x0C-0x0F */
+	0xBA, 0xC1, 0x94, 0x4F, 0x94, 0x50, 0x94, 0x51, /* 0x10-0x13 */
+	0xBA, 0xC2, 0x94, 0x52, 0x94, 0x53, 0x94, 0x54, /* 0x14-0x17 */
+	0x94, 0x55, 0x94, 0x56, 0x94, 0x57, 0x94, 0x58, /* 0x18-0x1B */
+	0x94, 0x59, 0x94, 0x5A, 0x94, 0x61, 0x94, 0x62, /* 0x1C-0x1F */
+	0x94, 0x63, 0x94, 0x64, 0x94, 0x65, 0x94, 0x66, /* 0x20-0x23 */
+	0xBA, 0xC3, 0x94, 0x67, 0x94, 0x68, 0x94, 0x69, /* 0x24-0x27 */
+	0x94, 0x6A, 0x94, 0x6B, 0x94, 0x6C, 0x94, 0x6D, /* 0x28-0x2B */
+	0xBA, 0xC4, 0x94, 0x6E, 0x94, 0x6F, 0x94, 0x70, /* 0x2C-0x2F */
+	0x94, 0x71, 0x94, 0x72, 0x94, 0x73, 0x94, 0x74, /* 0x30-0x33 */
+	0x94, 0x75, 0x94, 0x76, 0x94, 0x77, 0x94, 0x78, /* 0x34-0x37 */
+	0x94, 0x79, 0x94, 0x7A, 0x94, 0x81, 0x94, 0x82, /* 0x38-0x3B */
+	0x94, 0x83, 0x94, 0x84, 0x94, 0x85, 0x94, 0x86, /* 0x3C-0x3F */
+	0xBA, 0xC5, 0x94, 0x87, 0x94, 0x88, 0x94, 0x89, /* 0x40-0x43 */
+	0x94, 0x8A, 0x94, 0x8B, 0x94, 0x8C, 0x94, 0x8D, /* 0x44-0x47 */
+	0xBA, 0xC6, 0xBA, 0xC7, 0x94, 0x8E, 0x94, 0x8F, /* 0x48-0x4B */
+	0xBA, 0xC8, 0x94, 0x90, 0x94, 0x91, 0x94, 0x92, /* 0x4C-0x4F */
+	0xBA, 0xC9, 0x94, 0x93, 0x94, 0x94, 0x94, 0x95, /* 0x50-0x53 */
+	0x94, 0x96, 0x94, 0x97, 0x94, 0x98, 0x94, 0x99, /* 0x54-0x57 */
+	0xBA, 0xCA, 0xBA, 0xCB, 0x94, 0x9A, 0x94, 0x9B, /* 0x58-0x5B */
+	0x94, 0x9C, 0x94, 0x9D, 0x94, 0x9E, 0x94, 0x9F, /* 0x5C-0x5F */
+	0x94, 0xA0, 0x94, 0xA1, 0x94, 0xA2, 0x94, 0xA3, /* 0x60-0x63 */
+	0xBA, 0xCC, 0x94, 0xA4, 0x94, 0xA5, 0x94, 0xA6, /* 0x64-0x67 */
+	0xBA, 0xCD, 0x94, 0xA7, 0x94, 0xA8, 0x94, 0xA9, /* 0x68-0x6B */
+	0x94, 0xAA, 0x94, 0xAB, 0x94, 0xAC, 0x94, 0xAD, /* 0x6C-0x6F */
+	0x94, 0xAE, 0x94, 0xAF, 0x94, 0xB0, 0x94, 0xB1, /* 0x70-0x73 */
+	0x94, 0xB2, 0x94, 0xB3, 0x94, 0xB4, 0x94, 0xB5, /* 0x74-0x77 */
+	0x94, 0xB6, 0x94, 0xB7, 0x94, 0xB8, 0x94, 0xB9, /* 0x78-0x7B */
+	0x94, 0xBA, 0x94, 0xBB, 0x94, 0xBC, 0x94, 0xBD, /* 0x7C-0x7F */
+	
+	0xBA, 0xCE, 0xBA, 0xCF, 0x94, 0xBE, 0x94, 0xBF, /* 0x80-0x83 */
+	0xBA, 0xD0, 0x94, 0xC0, 0x94, 0xC1, 0xBA, 0xD1, /* 0x84-0x87 */
+	0xBA, 0xD2, 0xBA, 0xD3, 0xBA, 0xD4, 0x94, 0xC2, /* 0x88-0x8B */
+	0x94, 0xC3, 0x94, 0xC4, 0x94, 0xC5, 0x94, 0xC6, /* 0x8C-0x8F */
+	0xBA, 0xD5, 0xBA, 0xD6, 0x94, 0xC7, 0xBA, 0xD7, /* 0x90-0x93 */
+	0x94, 0xC8, 0xBA, 0xD8, 0x94, 0xC9, 0x94, 0xCA, /* 0x94-0x97 */
+	0x94, 0xCB, 0xBA, 0xD9, 0xBA, 0xDA, 0x94, 0xCC, /* 0x98-0x9B */
+	0xBA, 0xDB, 0x94, 0xCD, 0x94, 0xCE, 0x94, 0xCF, /* 0x9C-0x9F */
+	0x94, 0xD0, 0x94, 0xD1, 0x94, 0xD2, 0x94, 0xD3, /* 0xA0-0xA3 */
+	0xBA, 0xDC, 0x94, 0xD4, 0x94, 0xD5, 0x94, 0xD6, /* 0xA4-0xA7 */
+	0x94, 0xD7, 0x94, 0xD8, 0x94, 0xD9, 0x94, 0xDA, /* 0xA8-0xAB */
+	0x94, 0xDB, 0x94, 0xDC, 0x94, 0xDD, 0x94, 0xDE, /* 0xAC-0xAF */
+	0xBA, 0xDD, 0x94, 0xDF, 0x94, 0xE0, 0x94, 0xE1, /* 0xB0-0xB3 */
+	0x94, 0xE2, 0x94, 0xE3, 0x94, 0xE4, 0x94, 0xE5, /* 0xB4-0xB7 */
+	0xBA, 0xDE, 0x94, 0xE6, 0x94, 0xE7, 0x94, 0xE8, /* 0xB8-0xBB */
+	0x94, 0xE9, 0x94, 0xEA, 0x94, 0xEB, 0x94, 0xEC, /* 0xBC-0xBF */
+	0x94, 0xED, 0x94, 0xEE, 0x94, 0xEF, 0x94, 0xF0, /* 0xC0-0xC3 */
+	0x94, 0xF1, 0x94, 0xF2, 0x94, 0xF3, 0x94, 0xF4, /* 0xC4-0xC7 */
+	0x94, 0xF5, 0x94, 0xF6, 0x94, 0xF7, 0x94, 0xF8, /* 0xC8-0xCB */
+	0x94, 0xF9, 0x94, 0xFA, 0x94, 0xFB, 0x94, 0xFC, /* 0xCC-0xCF */
+	0x94, 0xFD, 0x94, 0xFE, 0x95, 0x41, 0x95, 0x42, /* 0xD0-0xD3 */
+	0xBA, 0xDF, 0xBA, 0xE0, 0x95, 0x43, 0x95, 0x44, /* 0xD4-0xD7 */
+	0xBA, 0xE1, 0x95, 0x45, 0x95, 0x46, 0x95, 0x47, /* 0xD8-0xDB */
+	0xBA, 0xE2, 0x95, 0x48, 0x95, 0x49, 0x95, 0x4A, /* 0xDC-0xDF */
+	0x95, 0x4B, 0x95, 0x4C, 0x95, 0x4D, 0x95, 0x4E, /* 0xE0-0xE3 */
+	0x95, 0x4F, 0x95, 0x50, 0x95, 0x51, 0x95, 0x52, /* 0xE4-0xE7 */
+	0x95, 0x53, 0xBA, 0xE3, 0x95, 0x54, 0x95, 0x55, /* 0xE8-0xEB */
+	0x95, 0x56, 0x95, 0x57, 0x95, 0x58, 0x95, 0x59, /* 0xEC-0xEF */
+	0xBA, 0xE4, 0x95, 0x5A, 0x95, 0x61, 0x95, 0x62, /* 0xF0-0xF3 */
+	0xBA, 0xE5, 0x95, 0x63, 0x95, 0x64, 0x95, 0x65, /* 0xF4-0xF7 */
+	0xBA, 0xE6, 0x95, 0x66, 0x95, 0x67, 0x95, 0x68, /* 0xF8-0xFB */
+	0x95, 0x69, 0x95, 0x6A, 0x95, 0x6B, 0x95, 0x6C, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_BE[512] = {
+	0xBA, 0xE7, 0x95, 0x6D, 0x95, 0x6E, 0xBA, 0xE8, /* 0x00-0x03 */
+	0x95, 0x6F, 0xBA, 0xE9, 0x95, 0x70, 0x95, 0x71, /* 0x04-0x07 */
+	0x95, 0x72, 0x95, 0x73, 0x95, 0x74, 0x95, 0x75, /* 0x08-0x0B */
+	0xBA, 0xEA, 0xBA, 0xEB, 0x95, 0x76, 0x95, 0x77, /* 0x0C-0x0F */
+	0xBA, 0xEC, 0x95, 0x78, 0x95, 0x79, 0x95, 0x7A, /* 0x10-0x13 */
+	0xBA, 0xED, 0x95, 0x81, 0x95, 0x82, 0x95, 0x83, /* 0x14-0x17 */
+	0x95, 0x84, 0x95, 0x85, 0x95, 0x86, 0x95, 0x87, /* 0x18-0x1B */
+	0xBA, 0xEE, 0xBA, 0xEF, 0x95, 0x88, 0xBA, 0xF0, /* 0x1C-0x1F */
+	0x95, 0x89, 0x95, 0x8A, 0x95, 0x8B, 0x95, 0x8C, /* 0x20-0x23 */
+	0x95, 0x8D, 0x95, 0x8E, 0x95, 0x8F, 0x95, 0x90, /* 0x24-0x27 */
+	0x95, 0x91, 0x95, 0x92, 0x95, 0x93, 0x95, 0x94, /* 0x28-0x2B */
+	0x95, 0x95, 0x95, 0x96, 0x95, 0x97, 0x95, 0x98, /* 0x2C-0x2F */
+	0x95, 0x99, 0x95, 0x9A, 0x95, 0x9B, 0x95, 0x9C, /* 0x30-0x33 */
+	0x95, 0x9D, 0x95, 0x9E, 0x95, 0x9F, 0x95, 0xA0, /* 0x34-0x37 */
+	0x95, 0xA1, 0x95, 0xA2, 0x95, 0xA3, 0x95, 0xA4, /* 0x38-0x3B */
+	0x95, 0xA5, 0x95, 0xA6, 0x95, 0xA7, 0x95, 0xA8, /* 0x3C-0x3F */
+	0x95, 0xA9, 0x95, 0xAA, 0x95, 0xAB, 0x95, 0xAC, /* 0x40-0x43 */
+	0xBA, 0xF1, 0xBA, 0xF2, 0x95, 0xAD, 0x95, 0xAE, /* 0x44-0x47 */
+	0xBA, 0xF3, 0x95, 0xAF, 0x95, 0xB0, 0x95, 0xB1, /* 0x48-0x4B */
+	0xBA, 0xF4, 0x95, 0xB2, 0xBA, 0xF5, 0x95, 0xB3, /* 0x4C-0x4F */
+	0x95, 0xB4, 0x95, 0xB5, 0x95, 0xB6, 0x95, 0xB7, /* 0x50-0x53 */
+	0xBA, 0xF6, 0xBA, 0xF7, 0x95, 0xB8, 0xBA, 0xF8, /* 0x54-0x57 */
+	0x95, 0xB9, 0xBA, 0xF9, 0xBA, 0xFA, 0xBA, 0xFB, /* 0x58-0x5B */
+	0x95, 0xBA, 0x95, 0xBB, 0x95, 0xBC, 0x95, 0xBD, /* 0x5C-0x5F */
+	0xBA, 0xFC, 0xBA, 0xFD, 0x95, 0xBE, 0x95, 0xBF, /* 0x60-0x63 */
+	0xBA, 0xFE, 0x95, 0xC0, 0x95, 0xC1, 0x95, 0xC2, /* 0x64-0x67 */
+	0xBB, 0xA1, 0x95, 0xC3, 0xBB, 0xA2, 0x95, 0xC4, /* 0x68-0x6B */
+	0x95, 0xC5, 0x95, 0xC6, 0x95, 0xC7, 0x95, 0xC8, /* 0x6C-0x6F */
+	0xBB, 0xA3, 0xBB, 0xA4, 0x95, 0xC9, 0xBB, 0xA5, /* 0x70-0x73 */
+	0xBB, 0xA6, 0xBB, 0xA7, 0x95, 0xCA, 0x95, 0xCB, /* 0x74-0x77 */
+	0x95, 0xCC, 0x95, 0xCD, 0x95, 0xCE, 0xBB, 0xA8, /* 0x78-0x7B */
+	0xBB, 0xA9, 0xBB, 0xAA, 0x95, 0xCF, 0x95, 0xD0, /* 0x7C-0x7F */
+	
+	0xBB, 0xAB, 0x95, 0xD1, 0x95, 0xD2, 0x95, 0xD3, /* 0x80-0x83 */
+	0xBB, 0xAC, 0x95, 0xD4, 0x95, 0xD5, 0x95, 0xD6, /* 0x84-0x87 */
+	0x95, 0xD7, 0x95, 0xD8, 0x95, 0xD9, 0x95, 0xDA, /* 0x88-0x8B */
+	0xBB, 0xAD, 0xBB, 0xAE, 0x95, 0xDB, 0xBB, 0xAF, /* 0x8C-0x8F */
+	0xBB, 0xB0, 0xBB, 0xB1, 0x95, 0xDC, 0x95, 0xDD, /* 0x90-0x93 */
+	0x95, 0xDE, 0x95, 0xDF, 0x95, 0xE0, 0x95, 0xE1, /* 0x94-0x97 */
+	0xBB, 0xB2, 0xBB, 0xB3, 0x95, 0xE2, 0x95, 0xE3, /* 0x98-0x9B */
+	0x95, 0xE4, 0x95, 0xE5, 0x95, 0xE6, 0x95, 0xE7, /* 0x9C-0x9F */
+	0x95, 0xE8, 0x95, 0xE9, 0x95, 0xEA, 0x95, 0xEB, /* 0xA0-0xA3 */
+	0x95, 0xEC, 0x95, 0xED, 0x95, 0xEE, 0x95, 0xEF, /* 0xA4-0xA7 */
+	0xBB, 0xB4, 0x95, 0xF0, 0x95, 0xF1, 0x95, 0xF2, /* 0xA8-0xAB */
+	0x95, 0xF3, 0x95, 0xF4, 0x95, 0xF5, 0x95, 0xF6, /* 0xAC-0xAF */
+	0x95, 0xF7, 0x95, 0xF8, 0x95, 0xF9, 0x95, 0xFA, /* 0xB0-0xB3 */
+	0x95, 0xFB, 0x95, 0xFC, 0x95, 0xFD, 0x95, 0xFE, /* 0xB4-0xB7 */
+	0x96, 0x41, 0x96, 0x42, 0x96, 0x43, 0x96, 0x44, /* 0xB8-0xBB */
+	0x96, 0x45, 0x96, 0x46, 0x96, 0x47, 0x96, 0x48, /* 0xBC-0xBF */
+	0x96, 0x49, 0x96, 0x4A, 0x96, 0x4B, 0x96, 0x4C, /* 0xC0-0xC3 */
+	0x96, 0x4D, 0x96, 0x4E, 0x96, 0x4F, 0x96, 0x50, /* 0xC4-0xC7 */
+	0x96, 0x51, 0x96, 0x52, 0x96, 0x53, 0x96, 0x54, /* 0xC8-0xCB */
+	0x96, 0x55, 0x96, 0x56, 0x96, 0x57, 0x96, 0x58, /* 0xCC-0xCF */
+	0xBB, 0xB5, 0xBB, 0xB6, 0x96, 0x59, 0x96, 0x5A, /* 0xD0-0xD3 */
+	0xBB, 0xB7, 0x96, 0x61, 0x96, 0x62, 0xBB, 0xB8, /* 0xD4-0xD7 */
+	0xBB, 0xB9, 0x96, 0x63, 0x96, 0x64, 0x96, 0x65, /* 0xD8-0xDB */
+	0x96, 0x66, 0x96, 0x67, 0x96, 0x68, 0x96, 0x69, /* 0xDC-0xDF */
+	0xBB, 0xBA, 0x96, 0x6A, 0x96, 0x6B, 0xBB, 0xBB, /* 0xE0-0xE3 */
+	0xBB, 0xBC, 0xBB, 0xBD, 0x96, 0x6C, 0x96, 0x6D, /* 0xE4-0xE7 */
+	0x96, 0x6E, 0x96, 0x6F, 0x96, 0x70, 0x96, 0x71, /* 0xE8-0xEB */
+	0xBB, 0xBE, 0x96, 0x72, 0x96, 0x73, 0x96, 0x74, /* 0xEC-0xEF */
+	0x96, 0x75, 0x96, 0x76, 0x96, 0x77, 0x96, 0x78, /* 0xF0-0xF3 */
+	0x96, 0x79, 0x96, 0x7A, 0x96, 0x81, 0x96, 0x82, /* 0xF4-0xF7 */
+	0x96, 0x83, 0x96, 0x84, 0x96, 0x85, 0x96, 0x86, /* 0xF8-0xFB */
+	0x96, 0x87, 0x96, 0x88, 0x96, 0x89, 0x96, 0x8A, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_BF[512] = {
+	0x96, 0x8B, 0xBB, 0xBF, 0x96, 0x8C, 0x96, 0x8D, /* 0x00-0x03 */
+	0x96, 0x8E, 0x96, 0x8F, 0x96, 0x90, 0x96, 0x91, /* 0x04-0x07 */
+	0xBB, 0xC0, 0xBB, 0xC1, 0x96, 0x92, 0x96, 0x93, /* 0x08-0x0B */
+	0x96, 0x94, 0x96, 0x95, 0x96, 0x96, 0x96, 0x97, /* 0x0C-0x0F */
+	0x96, 0x98, 0x96, 0x99, 0x96, 0x9A, 0x96, 0x9B, /* 0x10-0x13 */
+	0x96, 0x9C, 0x96, 0x9D, 0x96, 0x9E, 0x96, 0x9F, /* 0x14-0x17 */
+	0xBB, 0xC2, 0xBB, 0xC3, 0x96, 0xA0, 0xBB, 0xC4, /* 0x18-0x1B */
+	0xBB, 0xC5, 0xBB, 0xC6, 0x96, 0xA1, 0x96, 0xA2, /* 0x1C-0x1F */
+	0x96, 0xA3, 0x96, 0xA4, 0x96, 0xA5, 0x96, 0xA6, /* 0x20-0x23 */
+	0x96, 0xA7, 0x96, 0xA8, 0x96, 0xA9, 0x96, 0xAA, /* 0x24-0x27 */
+	0x96, 0xAB, 0x96, 0xAC, 0x96, 0xAD, 0x96, 0xAE, /* 0x28-0x2B */
+	0x96, 0xAF, 0x96, 0xB0, 0x96, 0xB1, 0x96, 0xB2, /* 0x2C-0x2F */
+	0x96, 0xB3, 0x96, 0xB4, 0x96, 0xB5, 0x96, 0xB6, /* 0x30-0x33 */
+	0x96, 0xB7, 0x96, 0xB8, 0x96, 0xB9, 0x96, 0xBA, /* 0x34-0x37 */
+	0x96, 0xBB, 0x96, 0xBC, 0x96, 0xBD, 0x96, 0xBE, /* 0x38-0x3B */
+	0x96, 0xBF, 0x96, 0xC0, 0x96, 0xC1, 0x96, 0xC2, /* 0x3C-0x3F */
+	0xBB, 0xC7, 0xBB, 0xC8, 0x96, 0xC3, 0x96, 0xC4, /* 0x40-0x43 */
+	0xBB, 0xC9, 0x96, 0xC5, 0x96, 0xC6, 0x96, 0xC7, /* 0x44-0x47 */
+	0xBB, 0xCA, 0x96, 0xC8, 0x96, 0xC9, 0x96, 0xCA, /* 0x48-0x4B */
+	0x96, 0xCB, 0x96, 0xCC, 0x96, 0xCD, 0x96, 0xCE, /* 0x4C-0x4F */
+	0xBB, 0xCB, 0xBB, 0xCC, 0x96, 0xCF, 0x96, 0xD0, /* 0x50-0x53 */
+	0x96, 0xD1, 0xBB, 0xCD, 0x96, 0xD2, 0x96, 0xD3, /* 0x54-0x57 */
+	0x96, 0xD4, 0x96, 0xD5, 0x96, 0xD6, 0x96, 0xD7, /* 0x58-0x5B */
+	0x96, 0xD8, 0x96, 0xD9, 0x96, 0xDA, 0x96, 0xDB, /* 0x5C-0x5F */
+	0x96, 0xDC, 0x96, 0xDD, 0x96, 0xDE, 0x96, 0xDF, /* 0x60-0x63 */
+	0x96, 0xE0, 0x96, 0xE1, 0x96, 0xE2, 0x96, 0xE3, /* 0x64-0x67 */
+	0x96, 0xE4, 0x96, 0xE5, 0x96, 0xE6, 0x96, 0xE7, /* 0x68-0x6B */
+	0x96, 0xE8, 0x96, 0xE9, 0x96, 0xEA, 0x96, 0xEB, /* 0x6C-0x6F */
+	0x96, 0xEC, 0x96, 0xED, 0x96, 0xEE, 0x96, 0xEF, /* 0x70-0x73 */
+	0x96, 0xF0, 0x96, 0xF1, 0x96, 0xF2, 0x96, 0xF3, /* 0x74-0x77 */
+	0x96, 0xF4, 0x96, 0xF5, 0x96, 0xF6, 0x96, 0xF7, /* 0x78-0x7B */
+	0x96, 0xF8, 0x96, 0xF9, 0x96, 0xFA, 0x96, 0xFB, /* 0x7C-0x7F */
+	
+	0x96, 0xFC, 0x96, 0xFD, 0x96, 0xFE, 0x97, 0x41, /* 0x80-0x83 */
+	0x97, 0x42, 0x97, 0x43, 0x97, 0x44, 0x97, 0x45, /* 0x84-0x87 */
+	0x97, 0x46, 0x97, 0x47, 0x97, 0x48, 0x97, 0x49, /* 0x88-0x8B */
+	0x97, 0x4A, 0x97, 0x4B, 0x97, 0x4C, 0x97, 0x4D, /* 0x8C-0x8F */
+	0x97, 0x4E, 0x97, 0x4F, 0x97, 0x50, 0x97, 0x51, /* 0x90-0x93 */
+	0xBB, 0xCE, 0x97, 0x52, 0x97, 0x53, 0x97, 0x54, /* 0x94-0x97 */
+	0x97, 0x55, 0x97, 0x56, 0x97, 0x57, 0x97, 0x58, /* 0x98-0x9B */
+	0x97, 0x59, 0x97, 0x5A, 0x97, 0x61, 0x97, 0x62, /* 0x9C-0x9F */
+	0x97, 0x63, 0x97, 0x64, 0x97, 0x65, 0x97, 0x66, /* 0xA0-0xA3 */
+	0x97, 0x67, 0x97, 0x68, 0x97, 0x69, 0x97, 0x6A, /* 0xA4-0xA7 */
+	0x97, 0x6B, 0x97, 0x6C, 0x97, 0x6D, 0x97, 0x6E, /* 0xA8-0xAB */
+	0x97, 0x6F, 0x97, 0x70, 0x97, 0x71, 0x97, 0x72, /* 0xAC-0xAF */
+	0xBB, 0xCF, 0x97, 0x73, 0x97, 0x74, 0x97, 0x75, /* 0xB0-0xB3 */
+	0x97, 0x76, 0x97, 0x77, 0x97, 0x78, 0x97, 0x79, /* 0xB4-0xB7 */
+	0x97, 0x7A, 0x97, 0x81, 0x97, 0x82, 0x97, 0x83, /* 0xB8-0xBB */
+	0x97, 0x84, 0x97, 0x85, 0x97, 0x86, 0x97, 0x87, /* 0xBC-0xBF */
+	0x97, 0x88, 0x97, 0x89, 0x97, 0x8A, 0x97, 0x8B, /* 0xC0-0xC3 */
+	0x97, 0x8C, 0xBB, 0xD0, 0x97, 0x8D, 0x97, 0x8E, /* 0xC4-0xC7 */
+	0x97, 0x8F, 0x97, 0x90, 0x97, 0x91, 0x97, 0x92, /* 0xC8-0xCB */
+	0xBB, 0xD1, 0xBB, 0xD2, 0x97, 0x93, 0x97, 0x94, /* 0xCC-0xCF */
+	0xBB, 0xD3, 0x97, 0x95, 0x97, 0x96, 0x97, 0x97, /* 0xD0-0xD3 */
+	0xBB, 0xD4, 0x97, 0x98, 0x97, 0x99, 0x97, 0x9A, /* 0xD4-0xD7 */
+	0x97, 0x9B, 0x97, 0x9C, 0x97, 0x9D, 0x97, 0x9E, /* 0xD8-0xDB */
+	0xBB, 0xD5, 0x97, 0x9F, 0x97, 0xA0, 0xBB, 0xD6, /* 0xDC-0xDF */
+	0x97, 0xA1, 0xBB, 0xD7, 0x97, 0xA2, 0x97, 0xA3, /* 0xE0-0xE3 */
+	0x97, 0xA4, 0x97, 0xA5, 0x97, 0xA6, 0x97, 0xA7, /* 0xE4-0xE7 */
+	0x97, 0xA8, 0x97, 0xA9, 0x97, 0xAA, 0x97, 0xAB, /* 0xE8-0xEB */
+	0x97, 0xAC, 0x97, 0xAD, 0x97, 0xAE, 0x97, 0xAF, /* 0xEC-0xEF */
+	0x97, 0xB0, 0x97, 0xB1, 0x97, 0xB2, 0x97, 0xB3, /* 0xF0-0xF3 */
+	0x97, 0xB4, 0x97, 0xB5, 0x97, 0xB6, 0x97, 0xB7, /* 0xF4-0xF7 */
+	0x97, 0xB8, 0x97, 0xB9, 0x97, 0xBA, 0x97, 0xBB, /* 0xF8-0xFB */
+	0x97, 0xBC, 0x97, 0xBD, 0x97, 0xBE, 0x97, 0xBF, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_C0[512] = {
+	0x97, 0xC0, 0x97, 0xC1, 0x97, 0xC2, 0x97, 0xC3, /* 0x00-0x03 */
+	0x97, 0xC4, 0x97, 0xC5, 0x97, 0xC6, 0x97, 0xC7, /* 0x04-0x07 */
+	0x97, 0xC8, 0x97, 0xC9, 0x97, 0xCA, 0x97, 0xCB, /* 0x08-0x0B */
+	0x97, 0xCC, 0x97, 0xCD, 0x97, 0xCE, 0x97, 0xCF, /* 0x0C-0x0F */
+	0x97, 0xD0, 0x97, 0xD1, 0x97, 0xD2, 0x97, 0xD3, /* 0x10-0x13 */
+	0x97, 0xD4, 0x97, 0xD5, 0x97, 0xD6, 0x97, 0xD7, /* 0x14-0x17 */
+	0x97, 0xD8, 0x97, 0xD9, 0x97, 0xDA, 0x97, 0xDB, /* 0x18-0x1B */
+	0x97, 0xDC, 0x97, 0xDD, 0x97, 0xDE, 0x97, 0xDF, /* 0x1C-0x1F */
+	0x97, 0xE0, 0x97, 0xE1, 0x97, 0xE2, 0x97, 0xE3, /* 0x20-0x23 */
+	0x97, 0xE4, 0x97, 0xE5, 0x97, 0xE6, 0x97, 0xE7, /* 0x24-0x27 */
+	0x97, 0xE8, 0x97, 0xE9, 0x97, 0xEA, 0x97, 0xEB, /* 0x28-0x2B */
+	0x97, 0xEC, 0x97, 0xED, 0x97, 0xEE, 0x97, 0xEF, /* 0x2C-0x2F */
+	0x97, 0xF0, 0x97, 0xF1, 0x97, 0xF2, 0x97, 0xF3, /* 0x30-0x33 */
+	0x97, 0xF4, 0x97, 0xF5, 0x97, 0xF6, 0x97, 0xF7, /* 0x34-0x37 */
+	0x97, 0xF8, 0x97, 0xF9, 0x97, 0xFA, 0x97, 0xFB, /* 0x38-0x3B */
+	0xBB, 0xD8, 0x97, 0xFC, 0x97, 0xFD, 0x97, 0xFE, /* 0x3C-0x3F */
+	0x98, 0x41, 0x98, 0x42, 0x98, 0x43, 0x98, 0x44, /* 0x40-0x43 */
+	0x98, 0x45, 0x98, 0x46, 0x98, 0x47, 0x98, 0x48, /* 0x44-0x47 */
+	0x98, 0x49, 0x98, 0x4A, 0x98, 0x4B, 0x98, 0x4C, /* 0x48-0x4B */
+	0x98, 0x4D, 0x98, 0x4E, 0x98, 0x4F, 0x98, 0x50, /* 0x4C-0x4F */
+	0x98, 0x51, 0xBB, 0xD9, 0x98, 0x52, 0x98, 0x53, /* 0x50-0x53 */
+	0x98, 0x54, 0x98, 0x55, 0x98, 0x56, 0x98, 0x57, /* 0x54-0x57 */
+	0xBB, 0xDA, 0x98, 0x58, 0x98, 0x59, 0x98, 0x5A, /* 0x58-0x5B */
+	0xBB, 0xDB, 0x98, 0x61, 0x98, 0x62, 0x98, 0x63, /* 0x5C-0x5F */
+	0xBB, 0xDC, 0x98, 0x64, 0x98, 0x65, 0x98, 0x66, /* 0x60-0x63 */
+	0x98, 0x67, 0x98, 0x68, 0x98, 0x69, 0x98, 0x6A, /* 0x64-0x67 */
+	0xBB, 0xDD, 0xBB, 0xDE, 0x98, 0x6B, 0x98, 0x6C, /* 0x68-0x6B */
+	0x98, 0x6D, 0x98, 0x6E, 0x98, 0x6F, 0x98, 0x70, /* 0x6C-0x6F */
+	0x98, 0x71, 0x98, 0x72, 0x98, 0x73, 0x98, 0x74, /* 0x70-0x73 */
+	0x98, 0x75, 0x98, 0x76, 0x98, 0x77, 0x98, 0x78, /* 0x74-0x77 */
+	0x98, 0x79, 0x98, 0x7A, 0x98, 0x81, 0x98, 0x82, /* 0x78-0x7B */
+	0x98, 0x83, 0x98, 0x84, 0x98, 0x85, 0x98, 0x86, /* 0x7C-0x7F */
+	
+	0x98, 0x87, 0x98, 0x88, 0x98, 0x89, 0x98, 0x8A, /* 0x80-0x83 */
+	0x98, 0x8B, 0x98, 0x8C, 0x98, 0x8D, 0x98, 0x8E, /* 0x84-0x87 */
+	0x98, 0x8F, 0x98, 0x90, 0x98, 0x91, 0x98, 0x92, /* 0x88-0x8B */
+	0x98, 0x93, 0x98, 0x94, 0x98, 0x95, 0x98, 0x96, /* 0x8C-0x8F */
+	0xBB, 0xDF, 0xBB, 0xE0, 0x98, 0x97, 0x98, 0x98, /* 0x90-0x93 */
+	0xBB, 0xE1, 0x98, 0x99, 0x98, 0x9A, 0x98, 0x9B, /* 0x94-0x97 */
+	0xBB, 0xE2, 0x98, 0x9C, 0x98, 0x9D, 0x98, 0x9E, /* 0x98-0x9B */
+	0x98, 0x9F, 0x98, 0xA0, 0x98, 0xA1, 0x98, 0xA2, /* 0x9C-0x9F */
+	0xBB, 0xE3, 0xBB, 0xE4, 0x98, 0xA3, 0xBB, 0xE5, /* 0xA0-0xA3 */
+	0x98, 0xA4, 0xBB, 0xE6, 0x98, 0xA5, 0x98, 0xA6, /* 0xA4-0xA7 */
+	0x98, 0xA7, 0x98, 0xA8, 0x98, 0xA9, 0x98, 0xAA, /* 0xA8-0xAB */
+	0xBB, 0xE7, 0xBB, 0xE8, 0x98, 0xAB, 0xBB, 0xE9, /* 0xAC-0xAF */
+	0xBB, 0xEA, 0x98, 0xAC, 0x98, 0xAD, 0xBB, 0xEB, /* 0xB0-0xB3 */
+	0xBB, 0xEC, 0xBB, 0xED, 0xBB, 0xEE, 0x98, 0xAE, /* 0xB4-0xB7 */
+	0x98, 0xAF, 0x98, 0xB0, 0x98, 0xB1, 0x98, 0xB2, /* 0xB8-0xBB */
+	0xBB, 0xEF, 0xBB, 0xF0, 0x98, 0xB3, 0xBB, 0xF1, /* 0xBC-0xBF */
+	0xBB, 0xF2, 0xBB, 0xF3, 0x98, 0xB4, 0x98, 0xB5, /* 0xC0-0xC3 */
+	0x98, 0xB6, 0xBB, 0xF4, 0x98, 0xB7, 0x98, 0xB8, /* 0xC4-0xC7 */
+	0xBB, 0xF5, 0xBB, 0xF6, 0x98, 0xB9, 0x98, 0xBA, /* 0xC8-0xCB */
+	0xBB, 0xF7, 0x98, 0xBB, 0x98, 0xBC, 0x98, 0xBD, /* 0xCC-0xCF */
+	0xBB, 0xF8, 0x98, 0xBE, 0x98, 0xBF, 0x98, 0xC0, /* 0xD0-0xD3 */
+	0x98, 0xC1, 0x98, 0xC2, 0x98, 0xC3, 0x98, 0xC4, /* 0xD4-0xD7 */
+	0xBB, 0xF9, 0xBB, 0xFA, 0x98, 0xC5, 0xBB, 0xFB, /* 0xD8-0xDB */
+	0xBB, 0xFC, 0xBB, 0xFD, 0x98, 0xC6, 0x98, 0xC7, /* 0xDC-0xDF */
+	0x98, 0xC8, 0x98, 0xC9, 0x98, 0xCA, 0x98, 0xCB, /* 0xE0-0xE3 */
+	0xBB, 0xFE, 0xBC, 0xA1, 0x98, 0xCC, 0x98, 0xCD, /* 0xE4-0xE7 */
+	0xBC, 0xA2, 0x98, 0xCE, 0x98, 0xCF, 0x98, 0xD0, /* 0xE8-0xEB */
+	0xBC, 0xA3, 0x98, 0xD1, 0x98, 0xD2, 0x98, 0xD3, /* 0xEC-0xEF */
+	0x98, 0xD4, 0x98, 0xD5, 0x98, 0xD6, 0x98, 0xD7, /* 0xF0-0xF3 */
+	0xBC, 0xA4, 0xBC, 0xA5, 0x98, 0xD8, 0xBC, 0xA6, /* 0xF4-0xF7 */
+	0x98, 0xD9, 0xBC, 0xA7, 0x98, 0xDA, 0x98, 0xDB, /* 0xF8-0xFB */
+	0x98, 0xDC, 0x98, 0xDD, 0x98, 0xDE, 0x98, 0xDF, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_C1[512] = {
+	0xBC, 0xA8, 0x98, 0xE0, 0x98, 0xE1, 0x98, 0xE2, /* 0x00-0x03 */
+	0xBC, 0xA9, 0x98, 0xE3, 0x98, 0xE4, 0x98, 0xE5, /* 0x04-0x07 */
+	0xBC, 0xAA, 0x98, 0xE6, 0x98, 0xE7, 0x98, 0xE8, /* 0x08-0x0B */
+	0x98, 0xE9, 0x98, 0xEA, 0x98, 0xEB, 0x98, 0xEC, /* 0x0C-0x0F */
+	0xBC, 0xAB, 0x98, 0xED, 0x98, 0xEE, 0x98, 0xEF, /* 0x10-0x13 */
+	0x98, 0xF0, 0xBC, 0xAC, 0x98, 0xF1, 0x98, 0xF2, /* 0x14-0x17 */
+	0x98, 0xF3, 0x98, 0xF4, 0x98, 0xF5, 0x98, 0xF6, /* 0x18-0x1B */
+	0xBC, 0xAD, 0xBC, 0xAE, 0xBC, 0xAF, 0xBC, 0xB0, /* 0x1C-0x1F */
+	0xBC, 0xB1, 0x98, 0xF7, 0x98, 0xF8, 0xBC, 0xB2, /* 0x20-0x23 */
+	0xBC, 0xB3, 0x98, 0xF9, 0xBC, 0xB4, 0xBC, 0xB5, /* 0x24-0x27 */
+	0x98, 0xFA, 0x98, 0xFB, 0x98, 0xFC, 0x98, 0xFD, /* 0x28-0x2B */
+	0xBC, 0xB6, 0xBC, 0xB7, 0x98, 0xFE, 0xBC, 0xB8, /* 0x2C-0x2F */
+	0xBC, 0xB9, 0xBC, 0xBA, 0x99, 0x41, 0x99, 0x42, /* 0x30-0x33 */
+	0x99, 0x43, 0x99, 0x44, 0xBC, 0xBB, 0x99, 0x45, /* 0x34-0x37 */
+	0xBC, 0xBC, 0xBC, 0xBD, 0x99, 0x46, 0x99, 0x47, /* 0x38-0x3B */
+	0xBC, 0xBE, 0x99, 0x48, 0x99, 0x49, 0x99, 0x4A, /* 0x3C-0x3F */
+	0xBC, 0xBF, 0x99, 0x4B, 0x99, 0x4C, 0x99, 0x4D, /* 0x40-0x43 */
+	0x99, 0x4E, 0x99, 0x4F, 0x99, 0x50, 0x99, 0x51, /* 0x44-0x47 */
+	0xBC, 0xC0, 0xBC, 0xC1, 0x99, 0x52, 0xBC, 0xC2, /* 0x48-0x4B */
+	0xBC, 0xC3, 0xBC, 0xC4, 0x99, 0x53, 0x99, 0x54, /* 0x4C-0x4F */
+	0x99, 0x55, 0x99, 0x56, 0x99, 0x57, 0x99, 0x58, /* 0x50-0x53 */
+	0xBC, 0xC5, 0xBC, 0xC6, 0x99, 0x59, 0x99, 0x5A, /* 0x54-0x57 */
+	0xBC, 0xC7, 0x99, 0x61, 0x99, 0x62, 0x99, 0x63, /* 0x58-0x5B */
+	0xBC, 0xC8, 0x99, 0x64, 0x99, 0x65, 0x99, 0x66, /* 0x5C-0x5F */
+	0x99, 0x67, 0x99, 0x68, 0x99, 0x69, 0x99, 0x6A, /* 0x60-0x63 */
+	0xBC, 0xC9, 0xBC, 0xCA, 0x99, 0x6B, 0xBC, 0xCB, /* 0x64-0x67 */
+	0xBC, 0xCC, 0xBC, 0xCD, 0x99, 0x6C, 0x99, 0x6D, /* 0x68-0x6B */
+	0x99, 0x6E, 0x99, 0x6F, 0x99, 0x70, 0x99, 0x71, /* 0x6C-0x6F */
+	0xBC, 0xCE, 0x99, 0x72, 0x99, 0x73, 0x99, 0x74, /* 0x70-0x73 */
+	0xBC, 0xCF, 0x99, 0x75, 0x99, 0x76, 0x99, 0x77, /* 0x74-0x77 */
+	0xBC, 0xD0, 0x99, 0x78, 0x99, 0x79, 0x99, 0x7A, /* 0x78-0x7B */
+	0x99, 0x81, 0x99, 0x82, 0x99, 0x83, 0x99, 0x84, /* 0x7C-0x7F */
+	
+	0x99, 0x85, 0x99, 0x86, 0x99, 0x87, 0x99, 0x88, /* 0x80-0x83 */
+	0x99, 0x89, 0xBC, 0xD1, 0x99, 0x8A, 0x99, 0x8B, /* 0x84-0x87 */
+	0x99, 0x8C, 0x99, 0x8D, 0x99, 0x8E, 0x99, 0x8F, /* 0x88-0x8B */
+	0xBC, 0xD2, 0xBC, 0xD3, 0xBC, 0xD4, 0x99, 0x90, /* 0x8C-0x8F */
+	0xBC, 0xD5, 0x99, 0x91, 0x99, 0x92, 0x99, 0x93, /* 0x90-0x93 */
+	0xBC, 0xD6, 0x99, 0x94, 0xBC, 0xD7, 0x99, 0x95, /* 0x94-0x97 */
+	0x99, 0x96, 0x99, 0x97, 0x99, 0x98, 0x99, 0x99, /* 0x98-0x9B */
+	0xBC, 0xD8, 0xBC, 0xD9, 0x99, 0x9A, 0xBC, 0xDA, /* 0x9C-0x9F */
+	0x99, 0x9B, 0xBC, 0xDB, 0x99, 0x9C, 0x99, 0x9D, /* 0xA0-0xA3 */
+	0x99, 0x9E, 0xBC, 0xDC, 0x99, 0x9F, 0x99, 0xA0, /* 0xA4-0xA7 */
+	0xBC, 0xDD, 0xBC, 0xDE, 0x99, 0xA1, 0x99, 0xA2, /* 0xA8-0xAB */
+	0xBC, 0xDF, 0x99, 0xA3, 0x99, 0xA4, 0x99, 0xA5, /* 0xAC-0xAF */
+	0xBC, 0xE0, 0x99, 0xA6, 0x99, 0xA7, 0x99, 0xA8, /* 0xB0-0xB3 */
+	0x99, 0xA9, 0x99, 0xAA, 0x99, 0xAB, 0x99, 0xAC, /* 0xB4-0xB7 */
+	0x99, 0xAD, 0x99, 0xAE, 0x99, 0xAF, 0x99, 0xB0, /* 0xB8-0xBB */
+	0x99, 0xB1, 0xBC, 0xE1, 0x99, 0xB2, 0x99, 0xB3, /* 0xBC-0xBF */
+	0x99, 0xB4, 0x99, 0xB5, 0x99, 0xB6, 0x99, 0xB7, /* 0xC0-0xC3 */
+	0xBC, 0xE2, 0x99, 0xB8, 0x99, 0xB9, 0x99, 0xBA, /* 0xC4-0xC7 */
+	0xBC, 0xE3, 0x99, 0xBB, 0x99, 0xBC, 0x99, 0xBD, /* 0xC8-0xCB */
+	0xBC, 0xE4, 0x99, 0xBE, 0x99, 0xBF, 0x99, 0xC0, /* 0xCC-0xCF */
+	0x99, 0xC1, 0x99, 0xC2, 0x99, 0xC3, 0x99, 0xC4, /* 0xD0-0xD3 */
+	0xBC, 0xE5, 0x99, 0xC5, 0x99, 0xC6, 0xBC, 0xE6, /* 0xD4-0xD7 */
+	0xBC, 0xE7, 0x99, 0xC7, 0x99, 0xC8, 0x99, 0xC9, /* 0xD8-0xDB */
+	0x99, 0xCA, 0x99, 0xCB, 0x99, 0xCC, 0x99, 0xCD, /* 0xDC-0xDF */
+	0xBC, 0xE8, 0x99, 0xCE, 0x99, 0xCF, 0x99, 0xD0, /* 0xE0-0xE3 */
+	0xBC, 0xE9, 0x99, 0xD1, 0x99, 0xD2, 0x99, 0xD3, /* 0xE4-0xE7 */
+	0xBC, 0xEA, 0x99, 0xD4, 0x99, 0xD5, 0x99, 0xD6, /* 0xE8-0xEB */
+	0x99, 0xD7, 0x99, 0xD8, 0x99, 0xD9, 0x99, 0xDA, /* 0xEC-0xEF */
+	0xBC, 0xEB, 0xBC, 0xEC, 0x99, 0xDB, 0xBC, 0xED, /* 0xF0-0xF3 */
+	0x99, 0xDC, 0x99, 0xDD, 0x99, 0xDE, 0x99, 0xDF, /* 0xF4-0xF7 */
+	0x99, 0xE0, 0x99, 0xE1, 0x99, 0xE2, 0x99, 0xE3, /* 0xF8-0xFB */
+	0xBC, 0xEE, 0xBC, 0xEF, 0x99, 0xE4, 0x99, 0xE5, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_C2[512] = {
+	0xBC, 0xF0, 0x99, 0xE6, 0x99, 0xE7, 0x99, 0xE8, /* 0x00-0x03 */
+	0xBC, 0xF1, 0x99, 0xE9, 0x99, 0xEA, 0x99, 0xEB, /* 0x04-0x07 */
+	0x99, 0xEC, 0x99, 0xED, 0x99, 0xEE, 0x99, 0xEF, /* 0x08-0x0B */
+	0xBC, 0xF2, 0xBC, 0xF3, 0x99, 0xF0, 0xBC, 0xF4, /* 0x0C-0x0F */
+	0x99, 0xF1, 0xBC, 0xF5, 0x99, 0xF2, 0x99, 0xF3, /* 0x10-0x13 */
+	0x99, 0xF4, 0x99, 0xF5, 0x99, 0xF6, 0x99, 0xF7, /* 0x14-0x17 */
+	0xBC, 0xF6, 0xBC, 0xF7, 0x99, 0xF8, 0x99, 0xF9, /* 0x18-0x1B */
+	0xBC, 0xF8, 0x99, 0xFA, 0x99, 0xFB, 0xBC, 0xF9, /* 0x1C-0x1F */
+	0xBC, 0xFA, 0x99, 0xFC, 0x99, 0xFD, 0x99, 0xFE, /* 0x20-0x23 */
+	0x9A, 0x41, 0x9A, 0x42, 0x9A, 0x43, 0x9A, 0x44, /* 0x24-0x27 */
+	0xBC, 0xFB, 0xBC, 0xFC, 0x9A, 0x45, 0xBC, 0xFD, /* 0x28-0x2B */
+	0x9A, 0x46, 0xBC, 0xFE, 0x9A, 0x47, 0xBD, 0xA1, /* 0x2C-0x2F */
+	0x9A, 0x48, 0xBD, 0xA2, 0xBD, 0xA3, 0x9A, 0x49, /* 0x30-0x33 */
+	0xBD, 0xA4, 0x9A, 0x4A, 0x9A, 0x4B, 0x9A, 0x4C, /* 0x34-0x37 */
+	0x9A, 0x4D, 0x9A, 0x4E, 0x9A, 0x4F, 0x9A, 0x50, /* 0x38-0x3B */
+	0x9A, 0x51, 0x9A, 0x52, 0x9A, 0x53, 0x9A, 0x54, /* 0x3C-0x3F */
+	0x9A, 0x55, 0x9A, 0x56, 0x9A, 0x57, 0x9A, 0x58, /* 0x40-0x43 */
+	0x9A, 0x59, 0x9A, 0x5A, 0x9A, 0x61, 0x9A, 0x62, /* 0x44-0x47 */
+	0xBD, 0xA5, 0x9A, 0x63, 0x9A, 0x64, 0x9A, 0x65, /* 0x48-0x4B */
+	0x9A, 0x66, 0x9A, 0x67, 0x9A, 0x68, 0x9A, 0x69, /* 0x4C-0x4F */
+	0xBD, 0xA6, 0xBD, 0xA7, 0x9A, 0x6A, 0x9A, 0x6B, /* 0x50-0x53 */
+	0xBD, 0xA8, 0x9A, 0x6C, 0x9A, 0x6D, 0x9A, 0x6E, /* 0x54-0x57 */
+	0xBD, 0xA9, 0x9A, 0x6F, 0x9A, 0x70, 0x9A, 0x71, /* 0x58-0x5B */
+	0x9A, 0x72, 0x9A, 0x73, 0x9A, 0x74, 0x9A, 0x75, /* 0x5C-0x5F */
+	0xBD, 0xAA, 0x9A, 0x76, 0x9A, 0x77, 0x9A, 0x78, /* 0x60-0x63 */
+	0x9A, 0x79, 0xBD, 0xAB, 0x9A, 0x7A, 0x9A, 0x81, /* 0x64-0x67 */
+	0x9A, 0x82, 0x9A, 0x83, 0x9A, 0x84, 0x9A, 0x85, /* 0x68-0x6B */
+	0xBD, 0xAC, 0xBD, 0xAD, 0x9A, 0x86, 0x9A, 0x87, /* 0x6C-0x6F */
+	0xBD, 0xAE, 0x9A, 0x88, 0x9A, 0x89, 0x9A, 0x8A, /* 0x70-0x73 */
+	0xBD, 0xAF, 0x9A, 0x8B, 0x9A, 0x8C, 0x9A, 0x8D, /* 0x74-0x77 */
+	0x9A, 0x8E, 0x9A, 0x8F, 0x9A, 0x90, 0x9A, 0x91, /* 0x78-0x7B */
+	0xBD, 0xB0, 0xBD, 0xB1, 0x9A, 0x92, 0xBD, 0xB2, /* 0x7C-0x7F */
+	
+	0x9A, 0x93, 0xBD, 0xB3, 0x9A, 0x94, 0x9A, 0x95, /* 0x80-0x83 */
+	0x9A, 0x96, 0x9A, 0x97, 0x9A, 0x98, 0x9A, 0x99, /* 0x84-0x87 */
+	0xBD, 0xB4, 0xBD, 0xB5, 0x9A, 0x9A, 0x9A, 0x9B, /* 0x88-0x8B */
+	0x9A, 0x9C, 0x9A, 0x9D, 0x9A, 0x9E, 0x9A, 0x9F, /* 0x8C-0x8F */
+	0xBD, 0xB6, 0x9A, 0xA0, 0x9A, 0xA1, 0x9A, 0xA2, /* 0x90-0x93 */
+	0x9A, 0xA3, 0x9A, 0xA4, 0x9A, 0xA5, 0x9A, 0xA6, /* 0x94-0x97 */
+	0xBD, 0xB7, 0x9A, 0xA7, 0x9A, 0xA8, 0xBD, 0xB8, /* 0x98-0x9B */
+	0x9A, 0xA9, 0xBD, 0xB9, 0x9A, 0xAA, 0x9A, 0xAB, /* 0x9C-0x9F */
+	0x9A, 0xAC, 0x9A, 0xAD, 0x9A, 0xAE, 0x9A, 0xAF, /* 0xA0-0xA3 */
+	0xBD, 0xBA, 0xBD, 0xBB, 0x9A, 0xB0, 0x9A, 0xB1, /* 0xA4-0xA7 */
+	0xBD, 0xBC, 0x9A, 0xB2, 0x9A, 0xB3, 0x9A, 0xB4, /* 0xA8-0xAB */
+	0xBD, 0xBD, 0xBD, 0xBE, 0x9A, 0xB5, 0x9A, 0xB6, /* 0xAC-0xAF */
+	0x9A, 0xB7, 0x9A, 0xB8, 0x9A, 0xB9, 0x9A, 0xBA, /* 0xB0-0xB3 */
+	0xBD, 0xBF, 0xBD, 0xC0, 0x9A, 0xBB, 0xBD, 0xC1, /* 0xB4-0xB7 */
+	0x9A, 0xBC, 0xBD, 0xC2, 0x9A, 0xBD, 0x9A, 0xBE, /* 0xB8-0xBB */
+	0x9A, 0xBF, 0x9A, 0xC0, 0x9A, 0xC1, 0x9A, 0xC2, /* 0xBC-0xBF */
+	0x9A, 0xC3, 0x9A, 0xC4, 0x9A, 0xC5, 0x9A, 0xC6, /* 0xC0-0xC3 */
+	0x9A, 0xC7, 0x9A, 0xC8, 0x9A, 0xC9, 0x9A, 0xCA, /* 0xC4-0xC7 */
+	0x9A, 0xCB, 0x9A, 0xCC, 0x9A, 0xCD, 0x9A, 0xCE, /* 0xC8-0xCB */
+	0x9A, 0xCF, 0x9A, 0xD0, 0x9A, 0xD1, 0x9A, 0xD2, /* 0xCC-0xCF */
+	0x9A, 0xD3, 0x9A, 0xD4, 0x9A, 0xD5, 0x9A, 0xD6, /* 0xD0-0xD3 */
+	0x9A, 0xD7, 0x9A, 0xD8, 0x9A, 0xD9, 0x9A, 0xDA, /* 0xD4-0xD7 */
+	0x9A, 0xDB, 0x9A, 0xDC, 0x9A, 0xDD, 0x9A, 0xDE, /* 0xD8-0xDB */
+	0xBD, 0xC3, 0xBD, 0xC4, 0x9A, 0xDF, 0x9A, 0xE0, /* 0xDC-0xDF */
+	0xBD, 0xC5, 0x9A, 0xE1, 0x9A, 0xE2, 0xBD, 0xC6, /* 0xE0-0xE3 */
+	0xBD, 0xC7, 0x9A, 0xE3, 0x9A, 0xE4, 0x9A, 0xE5, /* 0xE4-0xE7 */
+	0x9A, 0xE6, 0x9A, 0xE7, 0x9A, 0xE8, 0xBD, 0xC8, /* 0xE8-0xEB */
+	0xBD, 0xC9, 0xBD, 0xCA, 0x9A, 0xE9, 0xBD, 0xCB, /* 0xEC-0xEF */
+	0x9A, 0xEA, 0xBD, 0xCC, 0x9A, 0xEB, 0x9A, 0xEC, /* 0xF0-0xF3 */
+	0x9A, 0xED, 0x9A, 0xEE, 0xBD, 0xCD, 0x9A, 0xEF, /* 0xF4-0xF7 */
+	0xBD, 0xCE, 0xBD, 0xCF, 0x9A, 0xF0, 0xBD, 0xD0, /* 0xF8-0xFB */
+	0xBD, 0xD1, 0x9A, 0xF1, 0x9A, 0xF2, 0x9A, 0xF3, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_C3[512] = {
+	0xBD, 0xD2, 0x9A, 0xF4, 0x9A, 0xF5, 0x9A, 0xF6, /* 0x00-0x03 */
+	0x9A, 0xF7, 0x9A, 0xF8, 0x9A, 0xF9, 0x9A, 0xFA, /* 0x04-0x07 */
+	0xBD, 0xD3, 0xBD, 0xD4, 0x9A, 0xFB, 0x9A, 0xFC, /* 0x08-0x0B */
+	0xBD, 0xD5, 0xBD, 0xD6, 0x9A, 0xFD, 0x9A, 0xFE, /* 0x0C-0x0F */
+	0x9B, 0x41, 0x9B, 0x42, 0x9B, 0x43, 0xBD, 0xD7, /* 0x10-0x13 */
+	0xBD, 0xD8, 0xBD, 0xD9, 0x9B, 0x44, 0x9B, 0x45, /* 0x14-0x17 */
+	0xBD, 0xDA, 0x9B, 0x46, 0x9B, 0x47, 0x9B, 0x48, /* 0x18-0x1B */
+	0xBD, 0xDB, 0x9B, 0x49, 0x9B, 0x4A, 0x9B, 0x4B, /* 0x1C-0x1F */
+	0x9B, 0x4C, 0x9B, 0x4D, 0x9B, 0x4E, 0x9B, 0x4F, /* 0x20-0x23 */
+	0xBD, 0xDC, 0xBD, 0xDD, 0x9B, 0x50, 0x9B, 0x51, /* 0x24-0x27 */
+	0xBD, 0xDE, 0xBD, 0xDF, 0x9B, 0x52, 0x9B, 0x53, /* 0x28-0x2B */
+	0x9B, 0x54, 0x9B, 0x55, 0x9B, 0x56, 0x9B, 0x57, /* 0x2C-0x2F */
+	0x9B, 0x58, 0x9B, 0x59, 0x9B, 0x5A, 0x9B, 0x61, /* 0x30-0x33 */
+	0x9B, 0x62, 0x9B, 0x63, 0x9B, 0x64, 0x9B, 0x65, /* 0x34-0x37 */
+	0x9B, 0x66, 0x9B, 0x67, 0x9B, 0x68, 0x9B, 0x69, /* 0x38-0x3B */
+	0x9B, 0x6A, 0x9B, 0x6B, 0x9B, 0x6C, 0x9B, 0x6D, /* 0x3C-0x3F */
+	0x9B, 0x6E, 0x9B, 0x6F, 0x9B, 0x70, 0x9B, 0x71, /* 0x40-0x43 */
+	0x9B, 0x72, 0xBD, 0xE0, 0x9B, 0x73, 0x9B, 0x74, /* 0x44-0x47 */
+	0x9B, 0x75, 0x9B, 0x76, 0x9B, 0x77, 0x9B, 0x78, /* 0x48-0x4B */
+	0x9B, 0x79, 0x9B, 0x7A, 0x9B, 0x81, 0x9B, 0x82, /* 0x4C-0x4F */
+	0x9B, 0x83, 0x9B, 0x84, 0x9B, 0x85, 0x9B, 0x86, /* 0x50-0x53 */
+	0x9B, 0x87, 0x9B, 0x88, 0x9B, 0x89, 0x9B, 0x8A, /* 0x54-0x57 */
+	0x9B, 0x8B, 0x9B, 0x8C, 0x9B, 0x8D, 0x9B, 0x8E, /* 0x58-0x5B */
+	0x9B, 0x8F, 0x9B, 0x90, 0x9B, 0x91, 0x9B, 0x92, /* 0x5C-0x5F */
+	0x9B, 0x93, 0x9B, 0x94, 0x9B, 0x95, 0x9B, 0x96, /* 0x60-0x63 */
+	0x9B, 0x97, 0x9B, 0x98, 0x9B, 0x99, 0x9B, 0x9A, /* 0x64-0x67 */
+	0xBD, 0xE1, 0xBD, 0xE2, 0x9B, 0x9B, 0x9B, 0x9C, /* 0x68-0x6B */
+	0xBD, 0xE3, 0x9B, 0x9D, 0x9B, 0x9E, 0x9B, 0x9F, /* 0x6C-0x6F */
+	0xBD, 0xE4, 0x9B, 0xA0, 0xBD, 0xE5, 0x9B, 0xA1, /* 0x70-0x73 */
+	0x9B, 0xA2, 0x9B, 0xA3, 0x9B, 0xA4, 0x9B, 0xA5, /* 0x74-0x77 */
+	0xBD, 0xE6, 0xBD, 0xE7, 0x9B, 0xA6, 0x9B, 0xA7, /* 0x78-0x7B */
+	0xBD, 0xE8, 0xBD, 0xE9, 0x9B, 0xA8, 0x9B, 0xA9, /* 0x7C-0x7F */
+	
+	0x9B, 0xAA, 0x9B, 0xAB, 0x9B, 0xAC, 0x9B, 0xAD, /* 0x80-0x83 */
+	0xBD, 0xEA, 0x9B, 0xAE, 0x9B, 0xAF, 0x9B, 0xB0, /* 0x84-0x87 */
+	0xBD, 0xEB, 0x9B, 0xB1, 0x9B, 0xB2, 0x9B, 0xB3, /* 0x88-0x8B */
+	0xBD, 0xEC, 0x9B, 0xB4, 0x9B, 0xB5, 0x9B, 0xB6, /* 0x8C-0x8F */
+	0x9B, 0xB7, 0x9B, 0xB8, 0x9B, 0xB9, 0x9B, 0xBA, /* 0x90-0x93 */
+	0x9B, 0xBB, 0x9B, 0xBC, 0x9B, 0xBD, 0x9B, 0xBE, /* 0x94-0x97 */
+	0x9B, 0xBF, 0x9B, 0xC0, 0x9B, 0xC1, 0x9B, 0xC2, /* 0x98-0x9B */
+	0x9B, 0xC3, 0x9B, 0xC4, 0x9B, 0xC5, 0x9B, 0xC6, /* 0x9C-0x9F */
+	0x9B, 0xC7, 0x9B, 0xC8, 0x9B, 0xC9, 0x9B, 0xCA, /* 0xA0-0xA3 */
+	0x9B, 0xCB, 0x9B, 0xCC, 0x9B, 0xCD, 0x9B, 0xCE, /* 0xA4-0xA7 */
+	0x9B, 0xCF, 0x9B, 0xD0, 0x9B, 0xD1, 0x9B, 0xD2, /* 0xA8-0xAB */
+	0x9B, 0xD3, 0x9B, 0xD4, 0x9B, 0xD5, 0x9B, 0xD6, /* 0xAC-0xAF */
+	0x9B, 0xD7, 0x9B, 0xD8, 0x9B, 0xD9, 0x9B, 0xDA, /* 0xB0-0xB3 */
+	0x9B, 0xDB, 0x9B, 0xDC, 0x9B, 0xDD, 0x9B, 0xDE, /* 0xB4-0xB7 */
+	0x9B, 0xDF, 0x9B, 0xE0, 0x9B, 0xE1, 0x9B, 0xE2, /* 0xB8-0xBB */
+	0x9B, 0xE3, 0x9B, 0xE4, 0x9B, 0xE5, 0x9B, 0xE6, /* 0xBC-0xBF */
+	0xBD, 0xED, 0x9B, 0xE7, 0x9B, 0xE8, 0x9B, 0xE9, /* 0xC0-0xC3 */
+	0x9B, 0xEA, 0x9B, 0xEB, 0x9B, 0xEC, 0x9B, 0xED, /* 0xC4-0xC7 */
+	0x9B, 0xEE, 0x9B, 0xEF, 0x9B, 0xF0, 0x9B, 0xF1, /* 0xC8-0xCB */
+	0x9B, 0xF2, 0x9B, 0xF3, 0x9B, 0xF4, 0x9B, 0xF5, /* 0xCC-0xCF */
+	0x9B, 0xF6, 0x9B, 0xF7, 0x9B, 0xF8, 0x9B, 0xF9, /* 0xD0-0xD3 */
+	0x9B, 0xFA, 0x9B, 0xFB, 0x9B, 0xFC, 0x9B, 0xFD, /* 0xD4-0xD7 */
+	0xBD, 0xEE, 0xBD, 0xEF, 0x9B, 0xFE, 0x9C, 0x41, /* 0xD8-0xDB */
+	0xBD, 0xF0, 0x9C, 0x42, 0x9C, 0x43, 0xBD, 0xF1, /* 0xDC-0xDF */
+	0xBD, 0xF2, 0x9C, 0x44, 0xBD, 0xF3, 0x9C, 0x45, /* 0xE0-0xE3 */
+	0x9C, 0x46, 0x9C, 0x47, 0x9C, 0x48, 0x9C, 0x49, /* 0xE4-0xE7 */
+	0xBD, 0xF4, 0xBD, 0xF5, 0x9C, 0x4A, 0x9C, 0x4B, /* 0xE8-0xEB */
+	0x9C, 0x4C, 0xBD, 0xF6, 0x9C, 0x4D, 0x9C, 0x4E, /* 0xEC-0xEF */
+	0x9C, 0x4F, 0x9C, 0x50, 0x9C, 0x51, 0x9C, 0x52, /* 0xF0-0xF3 */
+	0xBD, 0xF7, 0xBD, 0xF8, 0x9C, 0x53, 0x9C, 0x54, /* 0xF4-0xF7 */
+	0xBD, 0xF9, 0x9C, 0x55, 0x9C, 0x56, 0x9C, 0x57, /* 0xF8-0xFB */
+	0x9C, 0x58, 0x9C, 0x59, 0x9C, 0x5A, 0x9C, 0x61, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_C4[512] = {
+	0x9C, 0x62, 0x9C, 0x63, 0x9C, 0x64, 0x9C, 0x65, /* 0x00-0x03 */
+	0x9C, 0x66, 0x9C, 0x67, 0x9C, 0x68, 0x9C, 0x69, /* 0x04-0x07 */
+	0xBD, 0xFA, 0x9C, 0x6A, 0x9C, 0x6B, 0x9C, 0x6C, /* 0x08-0x0B */
+	0x9C, 0x6D, 0x9C, 0x6E, 0x9C, 0x6F, 0x9C, 0x70, /* 0x0C-0x0F */
+	0xBD, 0xFB, 0x9C, 0x71, 0x9C, 0x72, 0x9C, 0x73, /* 0x10-0x13 */
+	0x9C, 0x74, 0x9C, 0x75, 0x9C, 0x76, 0x9C, 0x77, /* 0x14-0x17 */
+	0x9C, 0x78, 0x9C, 0x79, 0x9C, 0x7A, 0x9C, 0x81, /* 0x18-0x1B */
+	0x9C, 0x82, 0x9C, 0x83, 0x9C, 0x84, 0x9C, 0x85, /* 0x1C-0x1F */
+	0x9C, 0x86, 0x9C, 0x87, 0x9C, 0x88, 0x9C, 0x89, /* 0x20-0x23 */
+	0xBD, 0xFC, 0x9C, 0x8A, 0x9C, 0x8B, 0x9C, 0x8C, /* 0x24-0x27 */
+	0x9C, 0x8D, 0x9C, 0x8E, 0x9C, 0x8F, 0x9C, 0x90, /* 0x28-0x2B */
+	0xBD, 0xFD, 0x9C, 0x91, 0x9C, 0x92, 0x9C, 0x93, /* 0x2C-0x2F */
+	0xBD, 0xFE, 0x9C, 0x94, 0x9C, 0x95, 0x9C, 0x96, /* 0x30-0x33 */
+	0xBE, 0xA1, 0x9C, 0x97, 0x9C, 0x98, 0x9C, 0x99, /* 0x34-0x37 */
+	0x9C, 0x9A, 0x9C, 0x9B, 0x9C, 0x9C, 0x9C, 0x9D, /* 0x38-0x3B */
+	0xBE, 0xA2, 0xBE, 0xA3, 0x9C, 0x9E, 0x9C, 0x9F, /* 0x3C-0x3F */
+	0x9C, 0xA0, 0x9C, 0xA1, 0x9C, 0xA2, 0x9C, 0xA3, /* 0x40-0x43 */
+	0x9C, 0xA4, 0x9C, 0xA5, 0x9C, 0xA6, 0x9C, 0xA7, /* 0x44-0x47 */
+	0xBE, 0xA4, 0x9C, 0xA8, 0x9C, 0xA9, 0x9C, 0xAA, /* 0x48-0x4B */
+	0x9C, 0xAB, 0x9C, 0xAC, 0x9C, 0xAD, 0x9C, 0xAE, /* 0x4C-0x4F */
+	0x9C, 0xAF, 0x9C, 0xB0, 0x9C, 0xB1, 0x9C, 0xB2, /* 0x50-0x53 */
+	0x9C, 0xB3, 0x9C, 0xB4, 0x9C, 0xB5, 0x9C, 0xB6, /* 0x54-0x57 */
+	0x9C, 0xB7, 0x9C, 0xB8, 0x9C, 0xB9, 0x9C, 0xBA, /* 0x58-0x5B */
+	0x9C, 0xBB, 0x9C, 0xBC, 0x9C, 0xBD, 0x9C, 0xBE, /* 0x5C-0x5F */
+	0x9C, 0xBF, 0x9C, 0xC0, 0x9C, 0xC1, 0x9C, 0xC2, /* 0x60-0x63 */
+	0xBE, 0xA5, 0xBE, 0xA6, 0x9C, 0xC3, 0x9C, 0xC4, /* 0x64-0x67 */
+	0xBE, 0xA7, 0x9C, 0xC5, 0x9C, 0xC6, 0x9C, 0xC7, /* 0x68-0x6B */
+	0xBE, 0xA8, 0x9C, 0xC8, 0x9C, 0xC9, 0x9C, 0xCA, /* 0x6C-0x6F */
+	0x9C, 0xCB, 0x9C, 0xCC, 0x9C, 0xCD, 0x9C, 0xCE, /* 0x70-0x73 */
+	0xBE, 0xA9, 0xBE, 0xAA, 0x9C, 0xCF, 0x9C, 0xD0, /* 0x74-0x77 */
+	0x9C, 0xD1, 0xBE, 0xAB, 0x9C, 0xD2, 0x9C, 0xD3, /* 0x78-0x7B */
+	0x9C, 0xD4, 0x9C, 0xD5, 0x9C, 0xD6, 0x9C, 0xD7, /* 0x7C-0x7F */
+	
+	0xBE, 0xAC, 0x9C, 0xD8, 0x9C, 0xD9, 0x9C, 0xDA, /* 0x80-0x83 */
+	0x9C, 0xDB, 0x9C, 0xDC, 0x9C, 0xDD, 0x9C, 0xDE, /* 0x84-0x87 */
+	0x9C, 0xDF, 0x9C, 0xE0, 0x9C, 0xE1, 0x9C, 0xE2, /* 0x88-0x8B */
+	0x9C, 0xE3, 0x9C, 0xE4, 0x9C, 0xE5, 0x9C, 0xE6, /* 0x8C-0x8F */
+	0x9C, 0xE7, 0x9C, 0xE8, 0x9C, 0xE9, 0x9C, 0xEA, /* 0x90-0x93 */
+	0xBE, 0xAD, 0x9C, 0xEB, 0x9C, 0xEC, 0x9C, 0xED, /* 0x94-0x97 */
+	0x9C, 0xEE, 0x9C, 0xEF, 0x9C, 0xF0, 0x9C, 0xF1, /* 0x98-0x9B */
+	0xBE, 0xAE, 0x9C, 0xF2, 0x9C, 0xF3, 0x9C, 0xF4, /* 0x9C-0x9F */
+	0x9C, 0xF5, 0x9C, 0xF6, 0x9C, 0xF7, 0x9C, 0xF8, /* 0xA0-0xA3 */
+	0x9C, 0xF9, 0x9C, 0xFA, 0x9C, 0xFB, 0x9C, 0xFC, /* 0xA4-0xA7 */
+	0x9C, 0xFD, 0x9C, 0xFE, 0x9D, 0x41, 0x9D, 0x42, /* 0xA8-0xAB */
+	0x9D, 0x43, 0x9D, 0x44, 0x9D, 0x45, 0x9D, 0x46, /* 0xAC-0xAF */
+	0x9D, 0x47, 0x9D, 0x48, 0x9D, 0x49, 0x9D, 0x4A, /* 0xB0-0xB3 */
+	0x9D, 0x4B, 0x9D, 0x4C, 0x9D, 0x4D, 0x9D, 0x4E, /* 0xB4-0xB7 */
+	0xBE, 0xAF, 0x9D, 0x4F, 0x9D, 0x50, 0x9D, 0x51, /* 0xB8-0xBB */
+	0xBE, 0xB0, 0x9D, 0x52, 0x9D, 0x53, 0x9D, 0x54, /* 0xBC-0xBF */
+	0x9D, 0x55, 0x9D, 0x56, 0x9D, 0x57, 0x9D, 0x58, /* 0xC0-0xC3 */
+	0x9D, 0x59, 0x9D, 0x5A, 0x9D, 0x61, 0x9D, 0x62, /* 0xC4-0xC7 */
+	0x9D, 0x63, 0x9D, 0x64, 0x9D, 0x65, 0x9D, 0x66, /* 0xC8-0xCB */
+	0x9D, 0x67, 0x9D, 0x68, 0x9D, 0x69, 0x9D, 0x6A, /* 0xCC-0xCF */
+	0x9D, 0x6B, 0x9D, 0x6C, 0x9D, 0x6D, 0x9D, 0x6E, /* 0xD0-0xD3 */
+	0x9D, 0x6F, 0x9D, 0x70, 0x9D, 0x71, 0x9D, 0x72, /* 0xD4-0xD7 */
+	0x9D, 0x73, 0x9D, 0x74, 0x9D, 0x75, 0x9D, 0x76, /* 0xD8-0xDB */
+	0x9D, 0x77, 0x9D, 0x78, 0x9D, 0x79, 0x9D, 0x7A, /* 0xDC-0xDF */
+	0x9D, 0x81, 0x9D, 0x82, 0x9D, 0x83, 0x9D, 0x84, /* 0xE0-0xE3 */
+	0x9D, 0x85, 0x9D, 0x86, 0x9D, 0x87, 0x9D, 0x88, /* 0xE4-0xE7 */
+	0x9D, 0x89, 0xBE, 0xB1, 0x9D, 0x8A, 0x9D, 0x8B, /* 0xE8-0xEB */
+	0x9D, 0x8C, 0x9D, 0x8D, 0x9D, 0x8E, 0x9D, 0x8F, /* 0xEC-0xEF */
+	0xBE, 0xB2, 0xBE, 0xB3, 0x9D, 0x90, 0x9D, 0x91, /* 0xF0-0xF3 */
+	0xBE, 0xB4, 0x9D, 0x92, 0x9D, 0x93, 0x9D, 0x94, /* 0xF4-0xF7 */
+	0xBE, 0xB5, 0x9D, 0x95, 0xBE, 0xB6, 0x9D, 0x96, /* 0xF8-0xFB */
+	0x9D, 0x97, 0x9D, 0x98, 0x9D, 0x99, 0xBE, 0xB7, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_C5[512] = {
+	0xBE, 0xB8, 0xBE, 0xB9, 0x9D, 0x9A, 0x9D, 0x9B, /* 0x00-0x03 */
+	0x9D, 0x9C, 0x9D, 0x9D, 0x9D, 0x9E, 0x9D, 0x9F, /* 0x04-0x07 */
+	0x9D, 0xA0, 0x9D, 0xA1, 0x9D, 0xA2, 0x9D, 0xA3, /* 0x08-0x0B */
+	0xBE, 0xBA, 0x9D, 0xA4, 0x9D, 0xA5, 0x9D, 0xA6, /* 0x0C-0x0F */
+	0xBE, 0xBB, 0x9D, 0xA7, 0x9D, 0xA8, 0x9D, 0xA9, /* 0x10-0x13 */
+	0xBE, 0xBC, 0x9D, 0xAA, 0x9D, 0xAB, 0x9D, 0xAC, /* 0x14-0x17 */
+	0x9D, 0xAD, 0x9D, 0xAE, 0x9D, 0xAF, 0x9D, 0xB0, /* 0x18-0x1B */
+	0xBE, 0xBD, 0x9D, 0xB1, 0x9D, 0xB2, 0x9D, 0xB3, /* 0x1C-0x1F */
+	0x9D, 0xB4, 0x9D, 0xB5, 0x9D, 0xB6, 0x9D, 0xB7, /* 0x20-0x23 */
+	0x9D, 0xB8, 0x9D, 0xB9, 0x9D, 0xBA, 0x9D, 0xBB, /* 0x24-0x27 */
+	0xBE, 0xBE, 0xBE, 0xBF, 0x9D, 0xBC, 0x9D, 0xBD, /* 0x28-0x2B */
+	0xBE, 0xC0, 0x9D, 0xBE, 0x9D, 0xBF, 0x9D, 0xC0, /* 0x2C-0x2F */
+	0xBE, 0xC1, 0x9D, 0xC1, 0x9D, 0xC2, 0x9D, 0xC3, /* 0x30-0x33 */
+	0x9D, 0xC4, 0x9D, 0xC5, 0x9D, 0xC6, 0x9D, 0xC7, /* 0x34-0x37 */
+	0xBE, 0xC2, 0xBE, 0xC3, 0x9D, 0xC8, 0xBE, 0xC4, /* 0x38-0x3B */
+	0x9D, 0xC9, 0xBE, 0xC5, 0x9D, 0xCA, 0x9D, 0xCB, /* 0x3C-0x3F */
+	0x9D, 0xCC, 0x9D, 0xCD, 0x9D, 0xCE, 0x9D, 0xCF, /* 0x40-0x43 */
+	0xBE, 0xC6, 0xBE, 0xC7, 0x9D, 0xD0, 0x9D, 0xD1, /* 0x44-0x47 */
+	0xBE, 0xC8, 0xBE, 0xC9, 0xBE, 0xCA, 0x9D, 0xD2, /* 0x48-0x4B */
+	0xBE, 0xCB, 0xBE, 0xCC, 0xBE, 0xCD, 0x9D, 0xD3, /* 0x4C-0x4F */
+	0x9D, 0xD4, 0x9D, 0xD5, 0x9D, 0xD6, 0xBE, 0xCE, /* 0x50-0x53 */
+	0xBE, 0xCF, 0xBE, 0xD0, 0x9D, 0xD7, 0xBE, 0xD1, /* 0x54-0x57 */
+	0xBE, 0xD2, 0xBE, 0xD3, 0x9D, 0xD8, 0x9D, 0xD9, /* 0x58-0x5B */
+	0x9D, 0xDA, 0xBE, 0xD4, 0xBE, 0xD5, 0x9D, 0xDB, /* 0x5C-0x5F */
+	0xBE, 0xD6, 0xBE, 0xD7, 0x9D, 0xDC, 0x9D, 0xDD, /* 0x60-0x63 */
+	0xBE, 0xD8, 0x9D, 0xDE, 0x9D, 0xDF, 0x9D, 0xE0, /* 0x64-0x67 */
+	0xBE, 0xD9, 0x9D, 0xE1, 0x9D, 0xE2, 0x9D, 0xE3, /* 0x68-0x6B */
+	0x9D, 0xE4, 0x9D, 0xE5, 0x9D, 0xE6, 0x9D, 0xE7, /* 0x6C-0x6F */
+	0xBE, 0xDA, 0xBE, 0xDB, 0x9D, 0xE8, 0xBE, 0xDC, /* 0x70-0x73 */
+	0xBE, 0xDD, 0xBE, 0xDE, 0x9D, 0xE9, 0x9D, 0xEA, /* 0x74-0x77 */
+	0x9D, 0xEB, 0x9D, 0xEC, 0x9D, 0xED, 0x9D, 0xEE, /* 0x78-0x7B */
+	0xBE, 0xDF, 0xBE, 0xE0, 0x9D, 0xEF, 0x9D, 0xF0, /* 0x7C-0x7F */
+	
+	0xBE, 0xE1, 0x9D, 0xF1, 0x9D, 0xF2, 0x9D, 0xF3, /* 0x80-0x83 */
+	0xBE, 0xE2, 0x9D, 0xF4, 0x9D, 0xF5, 0xBE, 0xE3, /* 0x84-0x87 */
+	0x9D, 0xF6, 0x9D, 0xF7, 0x9D, 0xF8, 0x9D, 0xF9, /* 0x88-0x8B */
+	0xBE, 0xE4, 0xBE, 0xE5, 0x9D, 0xFA, 0xBE, 0xE6, /* 0x8C-0x8F */
+	0x9D, 0xFB, 0xBE, 0xE7, 0x9D, 0xFC, 0x9D, 0xFD, /* 0x90-0x93 */
+	0x9D, 0xFE, 0xBE, 0xE8, 0x9E, 0x41, 0xBE, 0xE9, /* 0x94-0x97 */
+	0xBE, 0xEA, 0x9E, 0x42, 0x9E, 0x43, 0x9E, 0x44, /* 0x98-0x9B */
+	0xBE, 0xEB, 0x9E, 0x45, 0x9E, 0x46, 0x9E, 0x47, /* 0x9C-0x9F */
+	0xBE, 0xEC, 0x9E, 0x48, 0x9E, 0x49, 0x9E, 0x4A, /* 0xA0-0xA3 */
+	0x9E, 0x4B, 0x9E, 0x4C, 0x9E, 0x4D, 0x9E, 0x4E, /* 0xA4-0xA7 */
+	0x9E, 0x4F, 0xBE, 0xED, 0x9E, 0x50, 0x9E, 0x51, /* 0xA8-0xAB */
+	0x9E, 0x52, 0x9E, 0x53, 0x9E, 0x54, 0x9E, 0x55, /* 0xAC-0xAF */
+	0x9E, 0x56, 0x9E, 0x57, 0x9E, 0x58, 0x9E, 0x59, /* 0xB0-0xB3 */
+	0xBE, 0xEE, 0xBE, 0xEF, 0x9E, 0x5A, 0x9E, 0x61, /* 0xB4-0xB7 */
+	0xBE, 0xF0, 0xBE, 0xF1, 0x9E, 0x62, 0xBE, 0xF2, /* 0xB8-0xBB */
+	0xBE, 0xF3, 0xBE, 0xF4, 0xBE, 0xF5, 0x9E, 0x63, /* 0xBC-0xBF */
+	0x9E, 0x64, 0x9E, 0x65, 0x9E, 0x66, 0x9E, 0x67, /* 0xC0-0xC3 */
+	0xBE, 0xF6, 0xBE, 0xF7, 0xBE, 0xF8, 0xBE, 0xF9, /* 0xC4-0xC7 */
+	0xBE, 0xFA, 0xBE, 0xFB, 0xBE, 0xFC, 0x9E, 0x68, /* 0xC8-0xCB */
+	0xBE, 0xFD, 0x9E, 0x69, 0xBE, 0xFE, 0x9E, 0x6A, /* 0xCC-0xCF */
+	0xBF, 0xA1, 0xBF, 0xA2, 0x9E, 0x6B, 0x9E, 0x6C, /* 0xD0-0xD3 */
+	0xBF, 0xA3, 0x9E, 0x6D, 0x9E, 0x6E, 0x9E, 0x6F, /* 0xD4-0xD7 */
+	0xBF, 0xA4, 0x9E, 0x70, 0x9E, 0x71, 0x9E, 0x72, /* 0xD8-0xDB */
+	0x9E, 0x73, 0x9E, 0x74, 0x9E, 0x75, 0x9E, 0x76, /* 0xDC-0xDF */
+	0xBF, 0xA5, 0xBF, 0xA6, 0x9E, 0x77, 0xBF, 0xA7, /* 0xE0-0xE3 */
+	0x9E, 0x78, 0xBF, 0xA8, 0x9E, 0x79, 0x9E, 0x7A, /* 0xE4-0xE7 */
+	0x9E, 0x81, 0x9E, 0x82, 0x9E, 0x83, 0x9E, 0x84, /* 0xE8-0xEB */
+	0xBF, 0xA9, 0xBF, 0xAA, 0xBF, 0xAB, 0x9E, 0x85, /* 0xEC-0xEF */
+	0xBF, 0xAC, 0x9E, 0x86, 0x9E, 0x87, 0x9E, 0x88, /* 0xF0-0xF3 */
+	0xBF, 0xAD, 0x9E, 0x89, 0xBF, 0xAE, 0xBF, 0xAF, /* 0xF4-0xF7 */
+	0x9E, 0x8A, 0x9E, 0x8B, 0x9E, 0x8C, 0x9E, 0x8D, /* 0xF8-0xFB */
+	0xBF, 0xB0, 0xBF, 0xB1, 0xBF, 0xB2, 0xBF, 0xB3, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_C6[512] = {
+	0xBF, 0xB4, 0xBF, 0xB5, 0x9E, 0x8E, 0x9E, 0x8F, /* 0x00-0x03 */
+	0x9E, 0x90, 0xBF, 0xB6, 0xBF, 0xB7, 0xBF, 0xB8, /* 0x04-0x07 */
+	0xBF, 0xB9, 0x9E, 0x91, 0x9E, 0x92, 0x9E, 0x93, /* 0x08-0x0B */
+	0xBF, 0xBA, 0x9E, 0x94, 0x9E, 0x95, 0x9E, 0x96, /* 0x0C-0x0F */
+	0xBF, 0xBB, 0x9E, 0x97, 0x9E, 0x98, 0x9E, 0x99, /* 0x10-0x13 */
+	0x9E, 0x9A, 0x9E, 0x9B, 0x9E, 0x9C, 0x9E, 0x9D, /* 0x14-0x17 */
+	0xBF, 0xBC, 0xBF, 0xBD, 0x9E, 0x9E, 0xBF, 0xBE, /* 0x18-0x1B */
+	0xBF, 0xBF, 0x9E, 0x9F, 0x9E, 0xA0, 0x9E, 0xA1, /* 0x1C-0x1F */
+	0x9E, 0xA2, 0x9E, 0xA3, 0x9E, 0xA4, 0x9E, 0xA5, /* 0x20-0x23 */
+	0xBF, 0xC0, 0xBF, 0xC1, 0x9E, 0xA6, 0x9E, 0xA7, /* 0x24-0x27 */
+	0xBF, 0xC2, 0x9E, 0xA8, 0x9E, 0xA9, 0x9E, 0xAA, /* 0x28-0x2B */
+	0xBF, 0xC3, 0xBF, 0xC4, 0xBF, 0xC5, 0x9E, 0xAB, /* 0x2C-0x2F */
+	0xBF, 0xC6, 0x9E, 0xAC, 0x9E, 0xAD, 0xBF, 0xC7, /* 0x30-0x33 */
+	0xBF, 0xC8, 0xBF, 0xC9, 0x9E, 0xAE, 0xBF, 0xCA, /* 0x34-0x37 */
+	0x9E, 0xAF, 0xBF, 0xCB, 0x9E, 0xB0, 0xBF, 0xCC, /* 0x38-0x3B */
+	0x9E, 0xB1, 0x9E, 0xB2, 0x9E, 0xB3, 0x9E, 0xB4, /* 0x3C-0x3F */
+	0xBF, 0xCD, 0xBF, 0xCE, 0x9E, 0xB5, 0x9E, 0xB6, /* 0x40-0x43 */
+	0xBF, 0xCF, 0x9E, 0xB7, 0x9E, 0xB8, 0x9E, 0xB9, /* 0x44-0x47 */
+	0xBF, 0xD0, 0x9E, 0xBA, 0x9E, 0xBB, 0x9E, 0xBC, /* 0x48-0x4B */
+	0x9E, 0xBD, 0x9E, 0xBE, 0x9E, 0xBF, 0x9E, 0xC0, /* 0x4C-0x4F */
+	0xBF, 0xD1, 0xBF, 0xD2, 0x9E, 0xC1, 0xBF, 0xD3, /* 0x50-0x53 */
+	0xBF, 0xD4, 0xBF, 0xD5, 0x9E, 0xC2, 0x9E, 0xC3, /* 0x54-0x57 */
+	0x9E, 0xC4, 0x9E, 0xC5, 0x9E, 0xC6, 0x9E, 0xC7, /* 0x58-0x5B */
+	0xBF, 0xD6, 0xBF, 0xD7, 0x9E, 0xC8, 0x9E, 0xC9, /* 0x5C-0x5F */
+	0xBF, 0xD8, 0x9E, 0xCA, 0x9E, 0xCB, 0x9E, 0xCC, /* 0x60-0x63 */
+	0x9E, 0xCD, 0x9E, 0xCE, 0x9E, 0xCF, 0x9E, 0xD0, /* 0x64-0x67 */
+	0x9E, 0xD1, 0x9E, 0xD2, 0x9E, 0xD3, 0x9E, 0xD4, /* 0x68-0x6B */
+	0xBF, 0xD9, 0x9E, 0xD5, 0x9E, 0xD6, 0xBF, 0xDA, /* 0x6C-0x6F */
+	0x9E, 0xD7, 0xBF, 0xDB, 0x9E, 0xD8, 0x9E, 0xD9, /* 0x70-0x73 */
+	0x9E, 0xDA, 0x9E, 0xDB, 0x9E, 0xDC, 0x9E, 0xDD, /* 0x74-0x77 */
+	0xBF, 0xDC, 0xBF, 0xDD, 0x9E, 0xDE, 0x9E, 0xDF, /* 0x78-0x7B */
+	0xBF, 0xDE, 0x9E, 0xE0, 0x9E, 0xE1, 0x9E, 0xE2, /* 0x7C-0x7F */
+	
+	0xBF, 0xDF, 0x9E, 0xE3, 0x9E, 0xE4, 0x9E, 0xE5, /* 0x80-0x83 */
+	0x9E, 0xE6, 0x9E, 0xE7, 0x9E, 0xE8, 0x9E, 0xE9, /* 0x84-0x87 */
+	0xBF, 0xE0, 0xBF, 0xE1, 0x9E, 0xEA, 0xBF, 0xE2, /* 0x88-0x8B */
+	0x9E, 0xEB, 0xBF, 0xE3, 0x9E, 0xEC, 0x9E, 0xED, /* 0x8C-0x8F */
+	0x9E, 0xEE, 0x9E, 0xEF, 0x9E, 0xF0, 0x9E, 0xF1, /* 0x90-0x93 */
+	0xBF, 0xE4, 0xBF, 0xE5, 0x9E, 0xF2, 0x9E, 0xF3, /* 0x94-0x97 */
+	0xBF, 0xE6, 0x9E, 0xF4, 0x9E, 0xF5, 0x9E, 0xF6, /* 0x98-0x9B */
+	0xBF, 0xE7, 0x9E, 0xF7, 0x9E, 0xF8, 0x9E, 0xF9, /* 0x9C-0x9F */
+	0x9E, 0xFA, 0x9E, 0xFB, 0x9E, 0xFC, 0x9E, 0xFD, /* 0xA0-0xA3 */
+	0xBF, 0xE8, 0xBF, 0xE9, 0x9E, 0xFE, 0xBF, 0xEA, /* 0xA4-0xA7 */
+	0x9F, 0x41, 0xBF, 0xEB, 0x9F, 0x42, 0x9F, 0x43, /* 0xA8-0xAB */
+	0x9F, 0x44, 0x9F, 0x45, 0x9F, 0x46, 0x9F, 0x47, /* 0xAC-0xAF */
+	0xBF, 0xEC, 0xBF, 0xED, 0x9F, 0x48, 0x9F, 0x49, /* 0xB0-0xB3 */
+	0xBF, 0xEE, 0x9F, 0x4A, 0x9F, 0x4B, 0x9F, 0x4C, /* 0xB4-0xB7 */
+	0xBF, 0xEF, 0xBF, 0xF0, 0xBF, 0xF1, 0x9F, 0x4D, /* 0xB8-0xBB */
+	0x9F, 0x4E, 0x9F, 0x4F, 0x9F, 0x50, 0x9F, 0x51, /* 0xBC-0xBF */
+	0xBF, 0xF2, 0xBF, 0xF3, 0x9F, 0x52, 0xBF, 0xF4, /* 0xC0-0xC3 */
+	0x9F, 0x53, 0xBF, 0xF5, 0x9F, 0x54, 0x9F, 0x55, /* 0xC4-0xC7 */
+	0x9F, 0x56, 0x9F, 0x57, 0x9F, 0x58, 0x9F, 0x59, /* 0xC8-0xCB */
+	0xBF, 0xF6, 0xBF, 0xF7, 0x9F, 0x5A, 0x9F, 0x61, /* 0xCC-0xCF */
+	0xBF, 0xF8, 0x9F, 0x62, 0x9F, 0x63, 0x9F, 0x64, /* 0xD0-0xD3 */
+	0xBF, 0xF9, 0x9F, 0x65, 0x9F, 0x66, 0x9F, 0x67, /* 0xD4-0xD7 */
+	0x9F, 0x68, 0x9F, 0x69, 0x9F, 0x6A, 0x9F, 0x6B, /* 0xD8-0xDB */
+	0xBF, 0xFA, 0xBF, 0xFB, 0x9F, 0x6C, 0x9F, 0x6D, /* 0xDC-0xDF */
+	0xBF, 0xFC, 0xBF, 0xFD, 0x9F, 0x6E, 0x9F, 0x6F, /* 0xE0-0xE3 */
+	0x9F, 0x70, 0x9F, 0x71, 0x9F, 0x72, 0x9F, 0x73, /* 0xE4-0xE7 */
+	0xBF, 0xFE, 0xC0, 0xA1, 0x9F, 0x74, 0x9F, 0x75, /* 0xE8-0xEB */
+	0xC0, 0xA2, 0x9F, 0x76, 0x9F, 0x77, 0x9F, 0x78, /* 0xEC-0xEF */
+	0xC0, 0xA3, 0x9F, 0x79, 0x9F, 0x7A, 0x9F, 0x81, /* 0xF0-0xF3 */
+	0x9F, 0x82, 0x9F, 0x83, 0x9F, 0x84, 0x9F, 0x85, /* 0xF4-0xF7 */
+	0xC0, 0xA4, 0xC0, 0xA5, 0x9F, 0x86, 0x9F, 0x87, /* 0xF8-0xFB */
+	0x9F, 0x88, 0xC0, 0xA6, 0x9F, 0x89, 0x9F, 0x8A, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_C7[512] = {
+	0x9F, 0x8B, 0x9F, 0x8C, 0x9F, 0x8D, 0x9F, 0x8E, /* 0x00-0x03 */
+	0xC0, 0xA7, 0xC0, 0xA8, 0x9F, 0x8F, 0x9F, 0x90, /* 0x04-0x07 */
+	0xC0, 0xA9, 0x9F, 0x91, 0x9F, 0x92, 0x9F, 0x93, /* 0x08-0x0B */
+	0xC0, 0xAA, 0x9F, 0x94, 0x9F, 0x95, 0x9F, 0x96, /* 0x0C-0x0F */
+	0x9F, 0x97, 0x9F, 0x98, 0x9F, 0x99, 0x9F, 0x9A, /* 0x10-0x13 */
+	0xC0, 0xAB, 0xC0, 0xAC, 0x9F, 0x9B, 0xC0, 0xAD, /* 0x14-0x17 */
+	0x9F, 0x9C, 0xC0, 0xAE, 0x9F, 0x9D, 0x9F, 0x9E, /* 0x18-0x1B */
+	0x9F, 0x9F, 0x9F, 0xA0, 0x9F, 0xA1, 0x9F, 0xA2, /* 0x1C-0x1F */
+	0xC0, 0xAF, 0xC0, 0xB0, 0x9F, 0xA3, 0x9F, 0xA4, /* 0x20-0x23 */
+	0xC0, 0xB1, 0x9F, 0xA5, 0x9F, 0xA6, 0x9F, 0xA7, /* 0x24-0x27 */
+	0xC0, 0xB2, 0x9F, 0xA8, 0x9F, 0xA9, 0x9F, 0xAA, /* 0x28-0x2B */
+	0x9F, 0xAB, 0x9F, 0xAC, 0x9F, 0xAD, 0x9F, 0xAE, /* 0x2C-0x2F */
+	0xC0, 0xB3, 0xC0, 0xB4, 0x9F, 0xAF, 0xC0, 0xB5, /* 0x30-0x33 */
+	0x9F, 0xB0, 0xC0, 0xB6, 0x9F, 0xB1, 0xC0, 0xB7, /* 0x34-0x37 */
+	0x9F, 0xB2, 0x9F, 0xB3, 0x9F, 0xB4, 0x9F, 0xB5, /* 0x38-0x3B */
+	0xC0, 0xB8, 0xC0, 0xB9, 0x9F, 0xB6, 0x9F, 0xB7, /* 0x3C-0x3F */
+	0xC0, 0xBA, 0x9F, 0xB8, 0x9F, 0xB9, 0x9F, 0xBA, /* 0x40-0x43 */
+	0xC0, 0xBB, 0x9F, 0xBB, 0x9F, 0xBC, 0x9F, 0xBD, /* 0x44-0x47 */
+	0x9F, 0xBE, 0x9F, 0xBF, 0xC0, 0xBC, 0x9F, 0xC0, /* 0x48-0x4B */
+	0xC0, 0xBD, 0xC0, 0xBE, 0x9F, 0xC1, 0xC0, 0xBF, /* 0x4C-0x4F */
+	0x9F, 0xC2, 0xC0, 0xC0, 0xC0, 0xC1, 0xC0, 0xC2, /* 0x50-0x53 */
+	0xC0, 0xC3, 0xC0, 0xC4, 0xC0, 0xC5, 0xC0, 0xC6, /* 0x54-0x57 */
+	0xC0, 0xC7, 0x9F, 0xC3, 0x9F, 0xC4, 0x9F, 0xC5, /* 0x58-0x5B */
+	0xC0, 0xC8, 0x9F, 0xC6, 0x9F, 0xC7, 0x9F, 0xC8, /* 0x5C-0x5F */
+	0xC0, 0xC9, 0x9F, 0xC9, 0x9F, 0xCA, 0x9F, 0xCB, /* 0x60-0x63 */
+	0x9F, 0xCC, 0x9F, 0xCD, 0x9F, 0xCE, 0x9F, 0xCF, /* 0x64-0x67 */
+	0xC0, 0xCA, 0x9F, 0xD0, 0x9F, 0xD1, 0xC0, 0xCB, /* 0x68-0x6B */
+	0x9F, 0xD2, 0x9F, 0xD3, 0x9F, 0xD4, 0x9F, 0xD5, /* 0x6C-0x6F */
+	0x9F, 0xD6, 0x9F, 0xD7, 0x9F, 0xD8, 0x9F, 0xD9, /* 0x70-0x73 */
+	0xC0, 0xCC, 0xC0, 0xCD, 0x9F, 0xDA, 0x9F, 0xDB, /* 0x74-0x77 */
+	0xC0, 0xCE, 0x9F, 0xDC, 0x9F, 0xDD, 0x9F, 0xDE, /* 0x78-0x7B */
+	0xC0, 0xCF, 0xC0, 0xD0, 0xC0, 0xD1, 0x9F, 0xDF, /* 0x7C-0x7F */
+	
+	0x9F, 0xE0, 0x9F, 0xE1, 0x9F, 0xE2, 0xC0, 0xD2, /* 0x80-0x83 */
+	0xC0, 0xD3, 0xC0, 0xD4, 0x9F, 0xE3, 0xC0, 0xD5, /* 0x84-0x87 */
+	0xC0, 0xD6, 0xC0, 0xD7, 0xC0, 0xD8, 0x9F, 0xE4, /* 0x88-0x8B */
+	0x9F, 0xE5, 0x9F, 0xE6, 0xC0, 0xD9, 0x9F, 0xE7, /* 0x8C-0x8F */
+	0xC0, 0xDA, 0xC0, 0xDB, 0x9F, 0xE8, 0x9F, 0xE9, /* 0x90-0x93 */
+	0xC0, 0xDC, 0x9F, 0xEA, 0xC0, 0xDD, 0xC0, 0xDE, /* 0x94-0x97 */
+	0xC0, 0xDF, 0x9F, 0xEB, 0xC0, 0xE0, 0x9F, 0xEC, /* 0x98-0x9B */
+	0x9F, 0xED, 0x9F, 0xEE, 0x9F, 0xEF, 0x9F, 0xF0, /* 0x9C-0x9F */
+	0xC0, 0xE1, 0xC0, 0xE2, 0x9F, 0xF1, 0xC0, 0xE3, /* 0xA0-0xA3 */
+	0xC0, 0xE4, 0xC0, 0xE5, 0xC0, 0xE6, 0x9F, 0xF2, /* 0xA4-0xA7 */
+	0x9F, 0xF3, 0x9F, 0xF4, 0x9F, 0xF5, 0x9F, 0xF6, /* 0xA8-0xAB */
+	0xC0, 0xE7, 0xC0, 0xE8, 0x9F, 0xF7, 0x9F, 0xF8, /* 0xAC-0xAF */
+	0xC0, 0xE9, 0x9F, 0xF9, 0x9F, 0xFA, 0x9F, 0xFB, /* 0xB0-0xB3 */
+	0xC0, 0xEA, 0x9F, 0xFC, 0x9F, 0xFD, 0x9F, 0xFE, /* 0xB4-0xB7 */
+	0xA0, 0x41, 0xA0, 0x42, 0xA0, 0x43, 0xA0, 0x44, /* 0xB8-0xBB */
+	0xC0, 0xEB, 0xC0, 0xEC, 0xA0, 0x45, 0xC0, 0xED, /* 0xBC-0xBF */
+	0xC0, 0xEE, 0xC0, 0xEF, 0xA0, 0x46, 0xA0, 0x47, /* 0xC0-0xC3 */
+	0xA0, 0x48, 0xA0, 0x49, 0xA0, 0x4A, 0xA0, 0x4B, /* 0xC4-0xC7 */
+	0xC0, 0xF0, 0xC0, 0xF1, 0xA0, 0x4C, 0xA0, 0x4D, /* 0xC8-0xCB */
+	0xC0, 0xF2, 0xA0, 0x4E, 0xC0, 0xF3, 0xA0, 0x4F, /* 0xCC-0xCF */
+	0xC0, 0xF4, 0xA0, 0x50, 0xA0, 0x51, 0xA0, 0x52, /* 0xD0-0xD3 */
+	0xA0, 0x53, 0xA0, 0x54, 0xA0, 0x55, 0xA0, 0x56, /* 0xD4-0xD7 */
+	0xC0, 0xF5, 0xA0, 0x57, 0xA0, 0x58, 0xA0, 0x59, /* 0xD8-0xDB */
+	0xA0, 0x5A, 0xC0, 0xF6, 0xA0, 0x61, 0xA0, 0x62, /* 0xDC-0xDF */
+	0xA0, 0x63, 0xA0, 0x64, 0xA0, 0x65, 0xA0, 0x66, /* 0xE0-0xE3 */
+	0xC0, 0xF7, 0xA0, 0x67, 0xA0, 0x68, 0xA0, 0x69, /* 0xE4-0xE7 */
+	0xC0, 0xF8, 0xA0, 0x6A, 0xA0, 0x6B, 0xA0, 0x6C, /* 0xE8-0xEB */
+	0xC0, 0xF9, 0xA0, 0x6D, 0xA0, 0x6E, 0xA0, 0x6F, /* 0xEC-0xEF */
+	0xA0, 0x70, 0xA0, 0x71, 0xA0, 0x72, 0xA0, 0x73, /* 0xF0-0xF3 */
+	0xA0, 0x74, 0xA0, 0x75, 0xA0, 0x76, 0xA0, 0x77, /* 0xF4-0xF7 */
+	0xA0, 0x78, 0xA0, 0x79, 0xA0, 0x7A, 0xA0, 0x81, /* 0xF8-0xFB */
+	0xA0, 0x82, 0xA0, 0x83, 0xA0, 0x84, 0xA0, 0x85, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_C8[512] = {
+	0xC0, 0xFA, 0xC0, 0xFB, 0xA0, 0x86, 0xA0, 0x87, /* 0x00-0x03 */
+	0xC0, 0xFC, 0xA0, 0x88, 0xA0, 0x89, 0xA0, 0x8A, /* 0x04-0x07 */
+	0xC0, 0xFD, 0xA0, 0x8B, 0xC0, 0xFE, 0xA0, 0x8C, /* 0x08-0x0B */
+	0xA0, 0x8D, 0xA0, 0x8E, 0xA0, 0x8F, 0xA0, 0x90, /* 0x0C-0x0F */
+	0xC1, 0xA1, 0xC1, 0xA2, 0xA0, 0x91, 0xC1, 0xA3, /* 0x10-0x13 */
+	0xA0, 0x92, 0xC1, 0xA4, 0xC1, 0xA5, 0xA0, 0x93, /* 0x14-0x17 */
+	0xA0, 0x94, 0xA0, 0x95, 0xA0, 0x96, 0xA0, 0x97, /* 0x18-0x1B */
+	0xC1, 0xA6, 0xC1, 0xA7, 0xA0, 0x98, 0xA0, 0x99, /* 0x1C-0x1F */
+	0xC1, 0xA8, 0xA0, 0x9A, 0xA0, 0x9B, 0xA0, 0x9C, /* 0x20-0x23 */
+	0xC1, 0xA9, 0xA0, 0x9D, 0xA0, 0x9E, 0xA0, 0x9F, /* 0x24-0x27 */
+	0xA0, 0xA0, 0xA0, 0xA1, 0xA0, 0xA2, 0xA0, 0xA3, /* 0x28-0x2B */
+	0xC1, 0xAA, 0xC1, 0xAB, 0xA0, 0xA4, 0xC1, 0xAC, /* 0x2C-0x2F */
+	0xA0, 0xA5, 0xC1, 0xAD, 0xA0, 0xA6, 0xA0, 0xA7, /* 0x30-0x33 */
+	0xA0, 0xA8, 0xA0, 0xA9, 0xA0, 0xAA, 0xA0, 0xAB, /* 0x34-0x37 */
+	0xC1, 0xAE, 0xA0, 0xAC, 0xA0, 0xAD, 0xA0, 0xAE, /* 0x38-0x3B */
+	0xC1, 0xAF, 0xA0, 0xAF, 0xA0, 0xB0, 0xA0, 0xB1, /* 0x3C-0x3F */
+	0xC1, 0xB0, 0xA0, 0xB2, 0xA0, 0xB3, 0xA0, 0xB4, /* 0x40-0x43 */
+	0xA0, 0xB5, 0xA0, 0xB6, 0xA0, 0xB7, 0xA0, 0xB8, /* 0x44-0x47 */
+	0xC1, 0xB1, 0xC1, 0xB2, 0xA0, 0xB9, 0xA0, 0xBA, /* 0x48-0x4B */
+	0xC1, 0xB3, 0xC1, 0xB4, 0xA0, 0xBB, 0xA0, 0xBC, /* 0x4C-0x4F */
+	0xA0, 0xBD, 0xA0, 0xBE, 0xA0, 0xBF, 0xA0, 0xC0, /* 0x50-0x53 */
+	0xC1, 0xB5, 0xA0, 0xC1, 0xA0, 0xC2, 0xA0, 0xC3, /* 0x54-0x57 */
+	0xA0, 0xC4, 0xA0, 0xC5, 0xA0, 0xC6, 0xA0, 0xC7, /* 0x58-0x5B */
+	0xA0, 0xC8, 0xA0, 0xC9, 0xA0, 0xCA, 0xA0, 0xCB, /* 0x5C-0x5F */
+	0xA0, 0xCC, 0xA0, 0xCD, 0xA0, 0xCE, 0xA0, 0xCF, /* 0x60-0x63 */
+	0xA0, 0xD0, 0xA0, 0xD1, 0xA0, 0xD2, 0xA0, 0xD3, /* 0x64-0x67 */
+	0xA0, 0xD4, 0xA0, 0xD5, 0xA0, 0xD6, 0xA0, 0xD7, /* 0x68-0x6B */
+	0xA0, 0xD8, 0xA0, 0xD9, 0xA0, 0xDA, 0xA0, 0xDB, /* 0x6C-0x6F */
+	0xC1, 0xB6, 0xC1, 0xB7, 0xA0, 0xDC, 0xA0, 0xDD, /* 0x70-0x73 */
+	0xC1, 0xB8, 0xA0, 0xDE, 0xA0, 0xDF, 0xA0, 0xE0, /* 0x74-0x77 */
+	0xC1, 0xB9, 0xA0, 0xE1, 0xC1, 0xBA, 0xA0, 0xE2, /* 0x78-0x7B */
+	0xA0, 0xE3, 0xA0, 0xE4, 0xA0, 0xE5, 0xA0, 0xE6, /* 0x7C-0x7F */
+	
+	0xC1, 0xBB, 0xC1, 0xBC, 0xA0, 0xE7, 0xC1, 0xBD, /* 0x80-0x83 */
+	0xA0, 0xE8, 0xC1, 0xBE, 0xC1, 0xBF, 0xC1, 0xC0, /* 0x84-0x87 */
+	0xA0, 0xE9, 0xA0, 0xEA, 0xA0, 0xEB, 0xC1, 0xC1, /* 0x88-0x8B */
+	0xC1, 0xC2, 0xC1, 0xC3, 0xA0, 0xEC, 0xA0, 0xED, /* 0x8C-0x8F */
+	0xA0, 0xEE, 0xA0, 0xEF, 0xA0, 0xF0, 0xA0, 0xF1, /* 0x90-0x93 */
+	0xC1, 0xC4, 0xA0, 0xF2, 0xA0, 0xF3, 0xA0, 0xF4, /* 0x94-0x97 */
+	0xA0, 0xF5, 0xA0, 0xF6, 0xA0, 0xF7, 0xA0, 0xF8, /* 0x98-0x9B */
+	0xA0, 0xF9, 0xC1, 0xC5, 0xA0, 0xFA, 0xC1, 0xC6, /* 0x9C-0x9F */
+	0xA0, 0xFB, 0xC1, 0xC7, 0xA0, 0xFC, 0xA0, 0xFD, /* 0xA0-0xA3 */
+	0xA0, 0xFE, 0xA1, 0x41, 0xA1, 0x42, 0xA1, 0x43, /* 0xA4-0xA7 */
+	0xC1, 0xC8, 0xA1, 0x44, 0xA1, 0x45, 0xA1, 0x46, /* 0xA8-0xAB */
+	0xA1, 0x47, 0xA1, 0x48, 0xA1, 0x49, 0xA1, 0x4A, /* 0xAC-0xAF */
+	0xA1, 0x4B, 0xA1, 0x4C, 0xA1, 0x4D, 0xA1, 0x4E, /* 0xB0-0xB3 */
+	0xA1, 0x4F, 0xA1, 0x50, 0xA1, 0x51, 0xA1, 0x52, /* 0xB4-0xB7 */
+	0xA1, 0x53, 0xA1, 0x54, 0xA1, 0x55, 0xA1, 0x56, /* 0xB8-0xBB */
+	0xC1, 0xC9, 0xC1, 0xCA, 0xA1, 0x57, 0xA1, 0x58, /* 0xBC-0xBF */
+	0xA1, 0x59, 0xA1, 0x5A, 0xA1, 0x61, 0xA1, 0x62, /* 0xC0-0xC3 */
+	0xC1, 0xCB, 0xA1, 0x63, 0xA1, 0x64, 0xA1, 0x65, /* 0xC4-0xC7 */
+	0xC1, 0xCC, 0xA1, 0x66, 0xA1, 0x67, 0xA1, 0x68, /* 0xC8-0xCB */
+	0xC1, 0xCD, 0xA1, 0x69, 0xA1, 0x6A, 0xA1, 0x6B, /* 0xCC-0xCF */
+	0xA1, 0x6C, 0xA1, 0x6D, 0xA1, 0x6E, 0xA1, 0x6F, /* 0xD0-0xD3 */
+	0xC1, 0xCE, 0xC1, 0xCF, 0xA1, 0x70, 0xC1, 0xD0, /* 0xD4-0xD7 */
+	0xA1, 0x71, 0xC1, 0xD1, 0xA1, 0x72, 0xA1, 0x73, /* 0xD8-0xDB */
+	0xA1, 0x74, 0xA1, 0x75, 0xA1, 0x76, 0xA1, 0x77, /* 0xDC-0xDF */
+	0xC1, 0xD2, 0xC1, 0xD3, 0xA1, 0x78, 0xA1, 0x79, /* 0xE0-0xE3 */
+	0xC1, 0xD4, 0xA1, 0x7A, 0xA1, 0x81, 0xA1, 0x82, /* 0xE4-0xE7 */
+	0xA1, 0x83, 0xA1, 0x84, 0xA1, 0x85, 0xA1, 0x86, /* 0xE8-0xEB */
+	0xA1, 0x87, 0xA1, 0x88, 0xA1, 0x89, 0xA1, 0x8A, /* 0xEC-0xEF */
+	0xA1, 0x8B, 0xA1, 0x8C, 0xA1, 0x8D, 0xA1, 0x8E, /* 0xF0-0xF3 */
+	0xA1, 0x8F, 0xC1, 0xD5, 0xA1, 0x90, 0xA1, 0x91, /* 0xF4-0xF7 */
+	0xA1, 0x92, 0xA1, 0x93, 0xA1, 0x94, 0xA1, 0x95, /* 0xF8-0xFB */
+	0xC1, 0xD6, 0xC1, 0xD7, 0xA1, 0x96, 0xA1, 0x97, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_C9[512] = {
+	0xC1, 0xD8, 0xA1, 0x98, 0xA1, 0x99, 0xA1, 0x9A, /* 0x00-0x03 */
+	0xC1, 0xD9, 0xC1, 0xDA, 0xC1, 0xDB, 0xA1, 0x9B, /* 0x04-0x07 */
+	0xA1, 0x9C, 0xA1, 0x9D, 0xA1, 0x9E, 0xA1, 0x9F, /* 0x08-0x0B */
+	0xC1, 0xDC, 0xC1, 0xDD, 0xA1, 0xA0, 0xC1, 0xDE, /* 0x0C-0x0F */
+	0xA2, 0x41, 0xC1, 0xDF, 0xA2, 0x42, 0xA2, 0x43, /* 0x10-0x13 */
+	0xA2, 0x44, 0xA2, 0x45, 0xA2, 0x46, 0xA2, 0x47, /* 0x14-0x17 */
+	0xC1, 0xE0, 0xA2, 0x48, 0xA2, 0x49, 0xA2, 0x4A, /* 0x18-0x1B */
+	0xA2, 0x4B, 0xA2, 0x4C, 0xA2, 0x4D, 0xA2, 0x4E, /* 0x1C-0x1F */
+	0xA2, 0x4F, 0xA2, 0x50, 0xA2, 0x51, 0xA2, 0x52, /* 0x20-0x23 */
+	0xA2, 0x53, 0xA2, 0x54, 0xA2, 0x55, 0xA2, 0x56, /* 0x24-0x27 */
+	0xA2, 0x57, 0xA2, 0x58, 0xA2, 0x59, 0xA2, 0x5A, /* 0x28-0x2B */
+	0xC1, 0xE1, 0xA2, 0x61, 0xA2, 0x62, 0xA2, 0x63, /* 0x2C-0x2F */
+	0xA2, 0x64, 0xA2, 0x65, 0xA2, 0x66, 0xA2, 0x67, /* 0x30-0x33 */
+	0xC1, 0xE2, 0xA2, 0x68, 0xA2, 0x69, 0xA2, 0x6A, /* 0x34-0x37 */
+	0xA2, 0x6B, 0xA2, 0x6C, 0xA2, 0x6D, 0xA2, 0x6E, /* 0x38-0x3B */
+	0xA2, 0x6F, 0xA2, 0x70, 0xA2, 0x71, 0xA2, 0x72, /* 0x3C-0x3F */
+	0xA2, 0x73, 0xA2, 0x74, 0xA2, 0x75, 0xA2, 0x76, /* 0x40-0x43 */
+	0xA2, 0x77, 0xA2, 0x78, 0xA2, 0x79, 0xA2, 0x7A, /* 0x44-0x47 */
+	0xA2, 0x81, 0xA2, 0x82, 0xA2, 0x83, 0xA2, 0x84, /* 0x48-0x4B */
+	0xA2, 0x85, 0xA2, 0x86, 0xA2, 0x87, 0xA2, 0x88, /* 0x4C-0x4F */
+	0xC1, 0xE3, 0xC1, 0xE4, 0xA2, 0x89, 0xA2, 0x8A, /* 0x50-0x53 */
+	0xC1, 0xE5, 0xA2, 0x8B, 0xA2, 0x8C, 0xA2, 0x8D, /* 0x54-0x57 */
+	0xC1, 0xE6, 0xA2, 0x8E, 0xA2, 0x8F, 0xA2, 0x90, /* 0x58-0x5B */
+	0xA2, 0x91, 0xA2, 0x92, 0xA2, 0x93, 0xA2, 0x94, /* 0x5C-0x5F */
+	0xC1, 0xE7, 0xC1, 0xE8, 0xA2, 0x95, 0xC1, 0xE9, /* 0x60-0x63 */
+	0xA2, 0x96, 0xA2, 0x97, 0xA2, 0x98, 0xA2, 0x99, /* 0x64-0x67 */
+	0xA2, 0x9A, 0xA2, 0x9B, 0xA2, 0x9C, 0xA2, 0x9D, /* 0x68-0x6B */
+	0xC1, 0xEA, 0xA2, 0x9E, 0xA2, 0x9F, 0xA2, 0xA0, /* 0x6C-0x6F */
+	0xC1, 0xEB, 0xA3, 0x41, 0xA3, 0x42, 0xA3, 0x43, /* 0x70-0x73 */
+	0xC1, 0xEC, 0xA3, 0x44, 0xA3, 0x45, 0xA3, 0x46, /* 0x74-0x77 */
+	0xA3, 0x47, 0xA3, 0x48, 0xA3, 0x49, 0xA3, 0x4A, /* 0x78-0x7B */
+	0xC1, 0xED, 0xA3, 0x4B, 0xA3, 0x4C, 0xA3, 0x4D, /* 0x7C-0x7F */
+	
+	0xA3, 0x4E, 0xA3, 0x4F, 0xA3, 0x50, 0xA3, 0x51, /* 0x80-0x83 */
+	0xA3, 0x52, 0xA3, 0x53, 0xA3, 0x54, 0xA3, 0x55, /* 0x84-0x87 */
+	0xC1, 0xEE, 0xC1, 0xEF, 0xA3, 0x56, 0xA3, 0x57, /* 0x88-0x8B */
+	0xC1, 0xF0, 0xA3, 0x58, 0xA3, 0x59, 0xA3, 0x5A, /* 0x8C-0x8F */
+	0xC1, 0xF1, 0xA3, 0x61, 0xA3, 0x62, 0xA3, 0x63, /* 0x90-0x93 */
+	0xA3, 0x64, 0xA3, 0x65, 0xA3, 0x66, 0xA3, 0x67, /* 0x94-0x97 */
+	0xC1, 0xF2, 0xC1, 0xF3, 0xA3, 0x68, 0xC1, 0xF4, /* 0x98-0x9B */
+	0xA3, 0x69, 0xC1, 0xF5, 0xA3, 0x6A, 0xA3, 0x6B, /* 0x9C-0x9F */
+	0xA3, 0x6C, 0xA3, 0x6D, 0xA3, 0x6E, 0xA3, 0x6F, /* 0xA0-0xA3 */
+	0xA3, 0x70, 0xA3, 0x71, 0xA3, 0x72, 0xA3, 0x73, /* 0xA4-0xA7 */
+	0xA3, 0x74, 0xA3, 0x75, 0xA3, 0x76, 0xA3, 0x77, /* 0xA8-0xAB */
+	0xA3, 0x78, 0xA3, 0x79, 0xA3, 0x7A, 0xA3, 0x81, /* 0xAC-0xAF */
+	0xA3, 0x82, 0xA3, 0x83, 0xA3, 0x84, 0xA3, 0x85, /* 0xB0-0xB3 */
+	0xA3, 0x86, 0xA3, 0x87, 0xA3, 0x88, 0xA3, 0x89, /* 0xB4-0xB7 */
+	0xA3, 0x8A, 0xA3, 0x8B, 0xA3, 0x8C, 0xA3, 0x8D, /* 0xB8-0xBB */
+	0xA3, 0x8E, 0xA3, 0x8F, 0xA3, 0x90, 0xA3, 0x91, /* 0xBC-0xBF */
+	0xC1, 0xF6, 0xC1, 0xF7, 0xA3, 0x92, 0xA3, 0x93, /* 0xC0-0xC3 */
+	0xC1, 0xF8, 0xA3, 0x94, 0xA3, 0x95, 0xC1, 0xF9, /* 0xC4-0xC7 */
+	0xC1, 0xFA, 0xA3, 0x96, 0xC1, 0xFB, 0xA3, 0x97, /* 0xC8-0xCB */
+	0xA3, 0x98, 0xA3, 0x99, 0xA3, 0x9A, 0xA3, 0x9B, /* 0xCC-0xCF */
+	0xC1, 0xFC, 0xC1, 0xFD, 0xA3, 0x9C, 0xC1, 0xFE, /* 0xD0-0xD3 */
+	0xA3, 0x9D, 0xC2, 0xA1, 0xC2, 0xA2, 0xA3, 0x9E, /* 0xD4-0xD7 */
+	0xA3, 0x9F, 0xC2, 0xA3, 0xC2, 0xA4, 0xA3, 0xA0, /* 0xD8-0xDB */
+	0xC2, 0xA5, 0xC2, 0xA6, 0xA4, 0x41, 0xA4, 0x42, /* 0xDC-0xDF */
+	0xC2, 0xA7, 0xA4, 0x43, 0xC2, 0xA8, 0xA4, 0x44, /* 0xE0-0xE3 */
+	0xC2, 0xA9, 0xA4, 0x45, 0xA4, 0x46, 0xC2, 0xAA, /* 0xE4-0xE7 */
+	0xA4, 0x47, 0xA4, 0x48, 0xA4, 0x49, 0xA4, 0x4A, /* 0xE8-0xEB */
+	0xC2, 0xAB, 0xC2, 0xAC, 0xA4, 0x4B, 0xC2, 0xAD, /* 0xEC-0xEF */
+	0xC2, 0xAE, 0xC2, 0xAF, 0xA4, 0x4C, 0xA4, 0x4D, /* 0xF0-0xF3 */
+	0xA4, 0x4E, 0xA4, 0x4F, 0xA4, 0x50, 0xA4, 0x51, /* 0xF4-0xF7 */
+	0xC2, 0xB0, 0xC2, 0xB1, 0xA4, 0x52, 0xA4, 0x53, /* 0xF8-0xFB */
+	0xC2, 0xB2, 0xA4, 0x54, 0xA4, 0x55, 0xA4, 0x56, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_CA[512] = {
+	0xC2, 0xB3, 0xA4, 0x57, 0xA4, 0x58, 0xA4, 0x59, /* 0x00-0x03 */
+	0xA4, 0x5A, 0xA4, 0x61, 0xA4, 0x62, 0xA4, 0x63, /* 0x04-0x07 */
+	0xC2, 0xB4, 0xC2, 0xB5, 0xA4, 0x64, 0xC2, 0xB6, /* 0x08-0x0B */
+	0xC2, 0xB7, 0xC2, 0xB8, 0xA4, 0x65, 0xA4, 0x66, /* 0x0C-0x0F */
+	0xA4, 0x67, 0xA4, 0x68, 0xA4, 0x69, 0xA4, 0x6A, /* 0x10-0x13 */
+	0xC2, 0xB9, 0xA4, 0x6B, 0xA4, 0x6C, 0xA4, 0x6D, /* 0x14-0x17 */
+	0xC2, 0xBA, 0xA4, 0x6E, 0xA4, 0x6F, 0xA4, 0x70, /* 0x18-0x1B */
+	0xA4, 0x71, 0xA4, 0x72, 0xA4, 0x73, 0xA4, 0x74, /* 0x1C-0x1F */
+	0xA4, 0x75, 0xA4, 0x76, 0xA4, 0x77, 0xA4, 0x78, /* 0x20-0x23 */
+	0xA4, 0x79, 0xA4, 0x7A, 0xA4, 0x81, 0xA4, 0x82, /* 0x24-0x27 */
+	0xA4, 0x83, 0xC2, 0xBB, 0xA4, 0x84, 0xA4, 0x85, /* 0x28-0x2B */
+	0xA4, 0x86, 0xA4, 0x87, 0xA4, 0x88, 0xA4, 0x89, /* 0x2C-0x2F */
+	0xA4, 0x8A, 0xA4, 0x8B, 0xA4, 0x8C, 0xA4, 0x8D, /* 0x30-0x33 */
+	0xA4, 0x8E, 0xA4, 0x8F, 0xA4, 0x90, 0xA4, 0x91, /* 0x34-0x37 */
+	0xA4, 0x92, 0xA4, 0x93, 0xA4, 0x94, 0xA4, 0x95, /* 0x38-0x3B */
+	0xA4, 0x96, 0xA4, 0x97, 0xA4, 0x98, 0xA4, 0x99, /* 0x3C-0x3F */
+	0xA4, 0x9A, 0xA4, 0x9B, 0xA4, 0x9C, 0xA4, 0x9D, /* 0x40-0x43 */
+	0xA4, 0x9E, 0xA4, 0x9F, 0xA4, 0xA0, 0xA5, 0x41, /* 0x44-0x47 */
+	0xA5, 0x42, 0xA5, 0x43, 0xA5, 0x44, 0xA5, 0x45, /* 0x48-0x4B */
+	0xC2, 0xBC, 0xC2, 0xBD, 0xA5, 0x46, 0xA5, 0x47, /* 0x4C-0x4F */
+	0xC2, 0xBE, 0xA5, 0x48, 0xA5, 0x49, 0xA5, 0x4A, /* 0x50-0x53 */
+	0xC2, 0xBF, 0xA5, 0x4B, 0xA5, 0x4C, 0xA5, 0x4D, /* 0x54-0x57 */
+	0xA5, 0x4E, 0xA5, 0x4F, 0xA5, 0x50, 0xA5, 0x51, /* 0x58-0x5B */
+	0xC2, 0xC0, 0xC2, 0xC1, 0xA5, 0x52, 0xC2, 0xC2, /* 0x5C-0x5F */
+	0xC2, 0xC3, 0xC2, 0xC4, 0xA5, 0x53, 0xA5, 0x54, /* 0x60-0x63 */
+	0xA5, 0x55, 0xA5, 0x56, 0xA5, 0x57, 0xA5, 0x58, /* 0x64-0x67 */
+	0xC2, 0xC5, 0xA5, 0x59, 0xA5, 0x5A, 0xA5, 0x61, /* 0x68-0x6B */
+	0xA5, 0x62, 0xA5, 0x63, 0xA5, 0x64, 0xA5, 0x65, /* 0x6C-0x6F */
+	0xA5, 0x66, 0xA5, 0x67, 0xA5, 0x68, 0xA5, 0x69, /* 0x70-0x73 */
+	0xA5, 0x6A, 0xA5, 0x6B, 0xA5, 0x6C, 0xA5, 0x6D, /* 0x74-0x77 */
+	0xA5, 0x6E, 0xA5, 0x6F, 0xA5, 0x70, 0xA5, 0x71, /* 0x78-0x7B */
+	0xA5, 0x72, 0xC2, 0xC6, 0xA5, 0x73, 0xA5, 0x74, /* 0x7C-0x7F */
+	
+	0xA5, 0x75, 0xA5, 0x76, 0xA5, 0x77, 0xA5, 0x78, /* 0x80-0x83 */
+	0xC2, 0xC7, 0xA5, 0x79, 0xA5, 0x7A, 0xA5, 0x81, /* 0x84-0x87 */
+	0xA5, 0x82, 0xA5, 0x83, 0xA5, 0x84, 0xA5, 0x85, /* 0x88-0x8B */
+	0xA5, 0x86, 0xA5, 0x87, 0xA5, 0x88, 0xA5, 0x89, /* 0x8C-0x8F */
+	0xA5, 0x8A, 0xA5, 0x8B, 0xA5, 0x8C, 0xA5, 0x8D, /* 0x90-0x93 */
+	0xA5, 0x8E, 0xA5, 0x8F, 0xA5, 0x90, 0xA5, 0x91, /* 0x94-0x97 */
+	0xC2, 0xC8, 0xA5, 0x92, 0xA5, 0x93, 0xA5, 0x94, /* 0x98-0x9B */
+	0xA5, 0x95, 0xA5, 0x96, 0xA5, 0x97, 0xA5, 0x98, /* 0x9C-0x9F */
+	0xA5, 0x99, 0xA5, 0x9A, 0xA5, 0x9B, 0xA5, 0x9C, /* 0xA0-0xA3 */
+	0xA5, 0x9D, 0xA5, 0x9E, 0xA5, 0x9F, 0xA5, 0xA0, /* 0xA4-0xA7 */
+	0xA6, 0x41, 0xA6, 0x42, 0xA6, 0x43, 0xA6, 0x44, /* 0xA8-0xAB */
+	0xA6, 0x45, 0xA6, 0x46, 0xA6, 0x47, 0xA6, 0x48, /* 0xAC-0xAF */
+	0xA6, 0x49, 0xA6, 0x4A, 0xA6, 0x4B, 0xA6, 0x4C, /* 0xB0-0xB3 */
+	0xA6, 0x4D, 0xA6, 0x4E, 0xA6, 0x4F, 0xA6, 0x50, /* 0xB4-0xB7 */
+	0xA6, 0x51, 0xA6, 0x52, 0xA6, 0x53, 0xA6, 0x54, /* 0xB8-0xBB */
+	0xC2, 0xC9, 0xC2, 0xCA, 0xA6, 0x55, 0xA6, 0x56, /* 0xBC-0xBF */
+	0xC2, 0xCB, 0xA6, 0x57, 0xA6, 0x58, 0xA6, 0x59, /* 0xC0-0xC3 */
+	0xC2, 0xCC, 0xA6, 0x5A, 0xA6, 0x61, 0xA6, 0x62, /* 0xC4-0xC7 */
+	0xA6, 0x63, 0xA6, 0x64, 0xA6, 0x65, 0xA6, 0x66, /* 0xC8-0xCB */
+	0xC2, 0xCD, 0xC2, 0xCE, 0xA6, 0x67, 0xC2, 0xCF, /* 0xCC-0xCF */
+	0xA6, 0x68, 0xC2, 0xD0, 0xA6, 0x69, 0xC2, 0xD1, /* 0xD0-0xD3 */
+	0xA6, 0x6A, 0xA6, 0x6B, 0xA6, 0x6C, 0xA6, 0x6D, /* 0xD4-0xD7 */
+	0xC2, 0xD2, 0xC2, 0xD3, 0xA6, 0x6E, 0xA6, 0x6F, /* 0xD8-0xDB */
+	0xA6, 0x70, 0xA6, 0x71, 0xA6, 0x72, 0xA6, 0x73, /* 0xDC-0xDF */
+	0xC2, 0xD4, 0xA6, 0x74, 0xA6, 0x75, 0xA6, 0x76, /* 0xE0-0xE3 */
+	0xA6, 0x77, 0xA6, 0x78, 0xA6, 0x79, 0xA6, 0x7A, /* 0xE4-0xE7 */
+	0xA6, 0x81, 0xA6, 0x82, 0xA6, 0x83, 0xA6, 0x84, /* 0xE8-0xEB */
+	0xC2, 0xD5, 0xA6, 0x85, 0xA6, 0x86, 0xA6, 0x87, /* 0xEC-0xEF */
+	0xA6, 0x88, 0xA6, 0x89, 0xA6, 0x8A, 0xA6, 0x8B, /* 0xF0-0xF3 */
+	0xC2, 0xD6, 0xA6, 0x8C, 0xA6, 0x8D, 0xA6, 0x8E, /* 0xF4-0xF7 */
+	0xA6, 0x8F, 0xA6, 0x90, 0xA6, 0x91, 0xA6, 0x92, /* 0xF8-0xFB */
+	0xA6, 0x93, 0xA6, 0x94, 0xA6, 0x95, 0xA6, 0x96, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_CB[512] = {
+	0xA6, 0x97, 0xA6, 0x98, 0xA6, 0x99, 0xA6, 0x9A, /* 0x00-0x03 */
+	0xA6, 0x9B, 0xA6, 0x9C, 0xA6, 0x9D, 0xA6, 0x9E, /* 0x04-0x07 */
+	0xC2, 0xD7, 0xA6, 0x9F, 0xA6, 0xA0, 0xA7, 0x41, /* 0x08-0x0B */
+	0xA7, 0x42, 0xA7, 0x43, 0xA7, 0x44, 0xA7, 0x45, /* 0x0C-0x0F */
+	0xC2, 0xD8, 0xA7, 0x46, 0xA7, 0x47, 0xA7, 0x48, /* 0x10-0x13 */
+	0xC2, 0xD9, 0xA7, 0x49, 0xA7, 0x4A, 0xA7, 0x4B, /* 0x14-0x17 */
+	0xC2, 0xDA, 0xA7, 0x4C, 0xA7, 0x4D, 0xA7, 0x4E, /* 0x18-0x1B */
+	0xA7, 0x4F, 0xA7, 0x50, 0xA7, 0x51, 0xA7, 0x52, /* 0x1C-0x1F */
+	0xC2, 0xDB, 0xC2, 0xDC, 0xA7, 0x53, 0xA7, 0x54, /* 0x20-0x23 */
+	0xA7, 0x55, 0xA7, 0x56, 0xA7, 0x57, 0xA7, 0x58, /* 0x24-0x27 */
+	0xA7, 0x59, 0xA7, 0x5A, 0xA7, 0x61, 0xA7, 0x62, /* 0x28-0x2B */
+	0xA7, 0x63, 0xA7, 0x64, 0xA7, 0x65, 0xA7, 0x66, /* 0x2C-0x2F */
+	0xA7, 0x67, 0xA7, 0x68, 0xA7, 0x69, 0xA7, 0x6A, /* 0x30-0x33 */
+	0xA7, 0x6B, 0xA7, 0x6C, 0xA7, 0x6D, 0xA7, 0x6E, /* 0x34-0x37 */
+	0xA7, 0x6F, 0xA7, 0x70, 0xA7, 0x71, 0xA7, 0x72, /* 0x38-0x3B */
+	0xA7, 0x73, 0xA7, 0x74, 0xA7, 0x75, 0xA7, 0x76, /* 0x3C-0x3F */
+	0xA7, 0x77, 0xC2, 0xDD, 0xA7, 0x78, 0xA7, 0x79, /* 0x40-0x43 */
+	0xA7, 0x7A, 0xA7, 0x81, 0xA7, 0x82, 0xA7, 0x83, /* 0x44-0x47 */
+	0xC2, 0xDE, 0xC2, 0xDF, 0xA7, 0x84, 0xA7, 0x85, /* 0x48-0x4B */
+	0xC2, 0xE0, 0xA7, 0x86, 0xA7, 0x87, 0xA7, 0x88, /* 0x4C-0x4F */
+	0xC2, 0xE1, 0xA7, 0x89, 0xA7, 0x8A, 0xA7, 0x8B, /* 0x50-0x53 */
+	0xA7, 0x8C, 0xA7, 0x8D, 0xA7, 0x8E, 0xA7, 0x8F, /* 0x54-0x57 */
+	0xC2, 0xE2, 0xC2, 0xE3, 0xA7, 0x90, 0xA7, 0x91, /* 0x58-0x5B */
+	0xA7, 0x92, 0xC2, 0xE4, 0xA7, 0x93, 0xA7, 0x94, /* 0x5C-0x5F */
+	0xA7, 0x95, 0xA7, 0x96, 0xA7, 0x97, 0xA7, 0x98, /* 0x60-0x63 */
+	0xC2, 0xE5, 0xA7, 0x99, 0xA7, 0x9A, 0xA7, 0x9B, /* 0x64-0x67 */
+	0xA7, 0x9C, 0xA7, 0x9D, 0xA7, 0x9E, 0xA7, 0x9F, /* 0x68-0x6B */
+	0xA7, 0xA0, 0xA8, 0x41, 0xA8, 0x42, 0xA8, 0x43, /* 0x6C-0x6F */
+	0xA8, 0x44, 0xA8, 0x45, 0xA8, 0x46, 0xA8, 0x47, /* 0x70-0x73 */
+	0xA8, 0x48, 0xA8, 0x49, 0xA8, 0x4A, 0xA8, 0x4B, /* 0x74-0x77 */
+	0xC2, 0xE6, 0xC2, 0xE7, 0xA8, 0x4C, 0xA8, 0x4D, /* 0x78-0x7B */
+	0xA8, 0x4E, 0xA8, 0x4F, 0xA8, 0x50, 0xA8, 0x51, /* 0x7C-0x7F */
+	
+	0xA8, 0x52, 0xA8, 0x53, 0xA8, 0x54, 0xA8, 0x55, /* 0x80-0x83 */
+	0xA8, 0x56, 0xA8, 0x57, 0xA8, 0x58, 0xA8, 0x59, /* 0x84-0x87 */
+	0xA8, 0x5A, 0xA8, 0x61, 0xA8, 0x62, 0xA8, 0x63, /* 0x88-0x8B */
+	0xA8, 0x64, 0xA8, 0x65, 0xA8, 0x66, 0xA8, 0x67, /* 0x8C-0x8F */
+	0xA8, 0x68, 0xA8, 0x69, 0xA8, 0x6A, 0xA8, 0x6B, /* 0x90-0x93 */
+	0xA8, 0x6C, 0xA8, 0x6D, 0xA8, 0x6E, 0xA8, 0x6F, /* 0x94-0x97 */
+	0xA8, 0x70, 0xA8, 0x71, 0xA8, 0x72, 0xA8, 0x73, /* 0x98-0x9B */
+	0xC2, 0xE8, 0xA8, 0x74, 0xA8, 0x75, 0xA8, 0x76, /* 0x9C-0x9F */
+	0xA8, 0x77, 0xA8, 0x78, 0xA8, 0x79, 0xA8, 0x7A, /* 0xA0-0xA3 */
+	0xA8, 0x81, 0xA8, 0x82, 0xA8, 0x83, 0xA8, 0x84, /* 0xA4-0xA7 */
+	0xA8, 0x85, 0xA8, 0x86, 0xA8, 0x87, 0xA8, 0x88, /* 0xA8-0xAB */
+	0xA8, 0x89, 0xA8, 0x8A, 0xA8, 0x8B, 0xA8, 0x8C, /* 0xAC-0xAF */
+	0xA8, 0x8D, 0xA8, 0x8E, 0xA8, 0x8F, 0xA8, 0x90, /* 0xB0-0xB3 */
+	0xA8, 0x91, 0xA8, 0x92, 0xA8, 0x93, 0xA8, 0x94, /* 0xB4-0xB7 */
+	0xC2, 0xE9, 0xA8, 0x95, 0xA8, 0x96, 0xA8, 0x97, /* 0xB8-0xBB */
+	0xA8, 0x98, 0xA8, 0x99, 0xA8, 0x9A, 0xA8, 0x9B, /* 0xBC-0xBF */
+	0xA8, 0x9C, 0xA8, 0x9D, 0xA8, 0x9E, 0xA8, 0x9F, /* 0xC0-0xC3 */
+	0xA8, 0xA0, 0xA9, 0x41, 0xA9, 0x42, 0xA9, 0x43, /* 0xC4-0xC7 */
+	0xA9, 0x44, 0xA9, 0x45, 0xA9, 0x46, 0xA9, 0x47, /* 0xC8-0xCB */
+	0xA9, 0x48, 0xA9, 0x49, 0xA9, 0x4A, 0xA9, 0x4B, /* 0xCC-0xCF */
+	0xA9, 0x4C, 0xA9, 0x4D, 0xA9, 0x4E, 0xA9, 0x4F, /* 0xD0-0xD3 */
+	0xC2, 0xEA, 0xA9, 0x50, 0xA9, 0x51, 0xA9, 0x52, /* 0xD4-0xD7 */
+	0xA9, 0x53, 0xA9, 0x54, 0xA9, 0x55, 0xA9, 0x56, /* 0xD8-0xDB */
+	0xA9, 0x57, 0xA9, 0x58, 0xA9, 0x59, 0xA9, 0x5A, /* 0xDC-0xDF */
+	0xA9, 0x61, 0xA9, 0x62, 0xA9, 0x63, 0xA9, 0x64, /* 0xE0-0xE3 */
+	0xC2, 0xEB, 0xA9, 0x65, 0xA9, 0x66, 0xC2, 0xEC, /* 0xE4-0xE7 */
+	0xA9, 0x67, 0xC2, 0xED, 0xA9, 0x68, 0xA9, 0x69, /* 0xE8-0xEB */
+	0xA9, 0x6A, 0xA9, 0x6B, 0xA9, 0x6C, 0xA9, 0x6D, /* 0xEC-0xEF */
+	0xA9, 0x6E, 0xA9, 0x6F, 0xA9, 0x70, 0xA9, 0x71, /* 0xF0-0xF3 */
+	0xA9, 0x72, 0xA9, 0x73, 0xA9, 0x74, 0xA9, 0x75, /* 0xF4-0xF7 */
+	0xA9, 0x76, 0xA9, 0x77, 0xA9, 0x78, 0xA9, 0x79, /* 0xF8-0xFB */
+	0xA9, 0x7A, 0xA9, 0x81, 0xA9, 0x82, 0xA9, 0x83, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_CC[512] = {
+	0xA9, 0x84, 0xA9, 0x85, 0xA9, 0x86, 0xA9, 0x87, /* 0x00-0x03 */
+	0xA9, 0x88, 0xA9, 0x89, 0xA9, 0x8A, 0xA9, 0x8B, /* 0x04-0x07 */
+	0xA9, 0x8C, 0xA9, 0x8D, 0xA9, 0x8E, 0xA9, 0x8F, /* 0x08-0x0B */
+	0xC2, 0xEE, 0xC2, 0xEF, 0xA9, 0x90, 0xA9, 0x91, /* 0x0C-0x0F */
+	0xC2, 0xF0, 0xA9, 0x92, 0xA9, 0x93, 0xA9, 0x94, /* 0x10-0x13 */
+	0xC2, 0xF1, 0xA9, 0x95, 0xA9, 0x96, 0xA9, 0x97, /* 0x14-0x17 */
+	0xA9, 0x98, 0xA9, 0x99, 0xA9, 0x9A, 0xA9, 0x9B, /* 0x18-0x1B */
+	0xC2, 0xF2, 0xC2, 0xF3, 0xA9, 0x9C, 0xA9, 0x9D, /* 0x1C-0x1F */
+	0xA9, 0x9E, 0xC2, 0xF4, 0xC2, 0xF5, 0xA9, 0x9F, /* 0x20-0x23 */
+	0xA9, 0xA0, 0xAA, 0x41, 0xAA, 0x42, 0xC2, 0xF6, /* 0x24-0x27 */
+	0xC2, 0xF7, 0xC2, 0xF8, 0xAA, 0x43, 0xAA, 0x44, /* 0x28-0x2B */
+	0xC2, 0xF9, 0xAA, 0x45, 0xC2, 0xFA, 0xAA, 0x46, /* 0x2C-0x2F */
+	0xC2, 0xFB, 0xAA, 0x47, 0xAA, 0x48, 0xAA, 0x49, /* 0x30-0x33 */
+	0xAA, 0x4A, 0xAA, 0x4B, 0xAA, 0x4C, 0xAA, 0x4D, /* 0x34-0x37 */
+	0xC2, 0xFC, 0xC2, 0xFD, 0xAA, 0x4E, 0xC2, 0xFE, /* 0x38-0x3B */
+	0xC3, 0xA1, 0xC3, 0xA2, 0xC3, 0xA3, 0xAA, 0x4F, /* 0x3C-0x3F */
+	0xAA, 0x50, 0xAA, 0x51, 0xAA, 0x52, 0xAA, 0x53, /* 0x40-0x43 */
+	0xC3, 0xA4, 0xC3, 0xA5, 0xAA, 0x54, 0xAA, 0x55, /* 0x44-0x47 */
+	0xC3, 0xA6, 0xAA, 0x56, 0xAA, 0x57, 0xAA, 0x58, /* 0x48-0x4B */
+	0xC3, 0xA7, 0xAA, 0x59, 0xAA, 0x5A, 0xAA, 0x61, /* 0x4C-0x4F */
+	0xAA, 0x62, 0xAA, 0x63, 0xAA, 0x64, 0xAA, 0x65, /* 0x50-0x53 */
+	0xC3, 0xA8, 0xC3, 0xA9, 0xAA, 0x66, 0xC3, 0xAA, /* 0x54-0x57 */
+	0xC3, 0xAB, 0xC3, 0xAC, 0xAA, 0x67, 0xAA, 0x68, /* 0x58-0x5B */
+	0xAA, 0x69, 0xAA, 0x6A, 0xAA, 0x6B, 0xAA, 0x6C, /* 0x5C-0x5F */
+	0xC3, 0xAD, 0xAA, 0x6D, 0xAA, 0x6E, 0xAA, 0x6F, /* 0x60-0x63 */
+	0xC3, 0xAE, 0xAA, 0x70, 0xC3, 0xAF, 0xAA, 0x71, /* 0x64-0x67 */
+	0xC3, 0xB0, 0xAA, 0x72, 0xAA, 0x73, 0xAA, 0x74, /* 0x68-0x6B */
+	0xAA, 0x75, 0xAA, 0x76, 0xAA, 0x77, 0xAA, 0x78, /* 0x6C-0x6F */
+	0xC3, 0xB1, 0xAA, 0x79, 0xAA, 0x7A, 0xAA, 0x81, /* 0x70-0x73 */
+	0xAA, 0x82, 0xC3, 0xB2, 0xAA, 0x83, 0xAA, 0x84, /* 0x74-0x77 */
+	0xAA, 0x85, 0xAA, 0x86, 0xAA, 0x87, 0xAA, 0x88, /* 0x78-0x7B */
+	0xAA, 0x89, 0xAA, 0x8A, 0xAA, 0x8B, 0xAA, 0x8C, /* 0x7C-0x7F */
+	
+	0xAA, 0x8D, 0xAA, 0x8E, 0xAA, 0x8F, 0xAA, 0x90, /* 0x80-0x83 */
+	0xAA, 0x91, 0xAA, 0x92, 0xAA, 0x93, 0xAA, 0x94, /* 0x84-0x87 */
+	0xAA, 0x95, 0xAA, 0x96, 0xAA, 0x97, 0xAA, 0x98, /* 0x88-0x8B */
+	0xAA, 0x99, 0xAA, 0x9A, 0xAA, 0x9B, 0xAA, 0x9C, /* 0x8C-0x8F */
+	0xAA, 0x9D, 0xAA, 0x9E, 0xAA, 0x9F, 0xAA, 0xA0, /* 0x90-0x93 */
+	0xAB, 0x41, 0xAB, 0x42, 0xAB, 0x43, 0xAB, 0x44, /* 0x94-0x97 */
+	0xC3, 0xB3, 0xC3, 0xB4, 0xAB, 0x45, 0xAB, 0x46, /* 0x98-0x9B */
+	0xC3, 0xB5, 0xAB, 0x47, 0xAB, 0x48, 0xAB, 0x49, /* 0x9C-0x9F */
+	0xC3, 0xB6, 0xAB, 0x4A, 0xAB, 0x4B, 0xAB, 0x4C, /* 0xA0-0xA3 */
+	0xAB, 0x4D, 0xAB, 0x4E, 0xAB, 0x4F, 0xAB, 0x50, /* 0xA4-0xA7 */
+	0xC3, 0xB7, 0xC3, 0xB8, 0xAB, 0x51, 0xC3, 0xB9, /* 0xA8-0xAB */
+	0xC3, 0xBA, 0xC3, 0xBB, 0xAB, 0x52, 0xAB, 0x53, /* 0xAC-0xAF */
+	0xAB, 0x54, 0xAB, 0x55, 0xAB, 0x56, 0xAB, 0x57, /* 0xB0-0xB3 */
+	0xC3, 0xBC, 0xC3, 0xBD, 0xAB, 0x58, 0xAB, 0x59, /* 0xB4-0xB7 */
+	0xC3, 0xBE, 0xAB, 0x5A, 0xAB, 0x61, 0xAB, 0x62, /* 0xB8-0xBB */
+	0xC3, 0xBF, 0xAB, 0x63, 0xAB, 0x64, 0xAB, 0x65, /* 0xBC-0xBF */
+	0xAB, 0x66, 0xAB, 0x67, 0xAB, 0x68, 0xAB, 0x69, /* 0xC0-0xC3 */
+	0xC3, 0xC0, 0xC3, 0xC1, 0xAB, 0x6A, 0xC3, 0xC2, /* 0xC4-0xC7 */
+	0xAB, 0x6B, 0xC3, 0xC3, 0xAB, 0x6C, 0xAB, 0x6D, /* 0xC8-0xCB */
+	0xAB, 0x6E, 0xAB, 0x6F, 0xAB, 0x70, 0xAB, 0x71, /* 0xCC-0xCF */
+	0xC3, 0xC4, 0xAB, 0x72, 0xAB, 0x73, 0xAB, 0x74, /* 0xD0-0xD3 */
+	0xC3, 0xC5, 0xAB, 0x75, 0xAB, 0x76, 0xAB, 0x77, /* 0xD4-0xD7 */
+	0xAB, 0x78, 0xAB, 0x79, 0xAB, 0x7A, 0xAB, 0x81, /* 0xD8-0xDB */
+	0xAB, 0x82, 0xAB, 0x83, 0xAB, 0x84, 0xAB, 0x85, /* 0xDC-0xDF */
+	0xAB, 0x86, 0xAB, 0x87, 0xAB, 0x88, 0xAB, 0x89, /* 0xE0-0xE3 */
+	0xC3, 0xC6, 0xAB, 0x8A, 0xAB, 0x8B, 0xAB, 0x8C, /* 0xE4-0xE7 */
+	0xAB, 0x8D, 0xAB, 0x8E, 0xAB, 0x8F, 0xAB, 0x90, /* 0xE8-0xEB */
+	0xC3, 0xC7, 0xAB, 0x91, 0xAB, 0x92, 0xAB, 0x93, /* 0xEC-0xEF */
+	0xC3, 0xC8, 0xAB, 0x94, 0xAB, 0x95, 0xAB, 0x96, /* 0xF0-0xF3 */
+	0xAB, 0x97, 0xAB, 0x98, 0xAB, 0x99, 0xAB, 0x9A, /* 0xF4-0xF7 */
+	0xAB, 0x9B, 0xAB, 0x9C, 0xAB, 0x9D, 0xAB, 0x9E, /* 0xF8-0xFB */
+	0xAB, 0x9F, 0xAB, 0xA0, 0xAC, 0x41, 0xAC, 0x42, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_CD[512] = {
+	0xAC, 0x43, 0xC3, 0xC9, 0xAC, 0x44, 0xAC, 0x45, /* 0x00-0x03 */
+	0xAC, 0x46, 0xAC, 0x47, 0xAC, 0x48, 0xAC, 0x49, /* 0x04-0x07 */
+	0xC3, 0xCA, 0xC3, 0xCB, 0xAC, 0x4A, 0xAC, 0x4B, /* 0x08-0x0B */
+	0xC3, 0xCC, 0xAC, 0x4C, 0xAC, 0x4D, 0xAC, 0x4E, /* 0x0C-0x0F */
+	0xC3, 0xCD, 0xAC, 0x4F, 0xAC, 0x50, 0xAC, 0x51, /* 0x10-0x13 */
+	0xAC, 0x52, 0xAC, 0x53, 0xAC, 0x54, 0xAC, 0x55, /* 0x14-0x17 */
+	0xC3, 0xCE, 0xC3, 0xCF, 0xAC, 0x56, 0xC3, 0xD0, /* 0x18-0x1B */
+	0xAC, 0x57, 0xC3, 0xD1, 0xAC, 0x58, 0xAC, 0x59, /* 0x1C-0x1F */
+	0xAC, 0x5A, 0xAC, 0x61, 0xAC, 0x62, 0xAC, 0x63, /* 0x20-0x23 */
+	0xC3, 0xD2, 0xAC, 0x64, 0xAC, 0x65, 0xAC, 0x66, /* 0x24-0x27 */
+	0xC3, 0xD3, 0xAC, 0x67, 0xAC, 0x68, 0xAC, 0x69, /* 0x28-0x2B */
+	0xC3, 0xD4, 0xAC, 0x6A, 0xAC, 0x6B, 0xAC, 0x6C, /* 0x2C-0x2F */
+	0xAC, 0x6D, 0xAC, 0x6E, 0xAC, 0x6F, 0xAC, 0x70, /* 0x30-0x33 */
+	0xAC, 0x71, 0xAC, 0x72, 0xAC, 0x73, 0xAC, 0x74, /* 0x34-0x37 */
+	0xAC, 0x75, 0xC3, 0xD5, 0xAC, 0x76, 0xAC, 0x77, /* 0x38-0x3B */
+	0xAC, 0x78, 0xAC, 0x79, 0xAC, 0x7A, 0xAC, 0x81, /* 0x3C-0x3F */
+	0xAC, 0x82, 0xAC, 0x83, 0xAC, 0x84, 0xAC, 0x85, /* 0x40-0x43 */
+	0xAC, 0x86, 0xAC, 0x87, 0xAC, 0x88, 0xAC, 0x89, /* 0x44-0x47 */
+	0xAC, 0x8A, 0xAC, 0x8B, 0xAC, 0x8C, 0xAC, 0x8D, /* 0x48-0x4B */
+	0xAC, 0x8E, 0xAC, 0x8F, 0xAC, 0x90, 0xAC, 0x91, /* 0x4C-0x4F */
+	0xAC, 0x92, 0xAC, 0x93, 0xAC, 0x94, 0xAC, 0x95, /* 0x50-0x53 */
+	0xAC, 0x96, 0xAC, 0x97, 0xAC, 0x98, 0xAC, 0x99, /* 0x54-0x57 */
+	0xAC, 0x9A, 0xAC, 0x9B, 0xAC, 0x9C, 0xAC, 0x9D, /* 0x58-0x5B */
+	0xC3, 0xD6, 0xAC, 0x9E, 0xAC, 0x9F, 0xAC, 0xA0, /* 0x5C-0x5F */
+	0xC3, 0xD7, 0xAD, 0x41, 0xAD, 0x42, 0xAD, 0x43, /* 0x60-0x63 */
+	0xC3, 0xD8, 0xAD, 0x44, 0xAD, 0x45, 0xAD, 0x46, /* 0x64-0x67 */
+	0xAD, 0x47, 0xAD, 0x48, 0xAD, 0x49, 0xAD, 0x4A, /* 0x68-0x6B */
+	0xC3, 0xD9, 0xC3, 0xDA, 0xAD, 0x4B, 0xC3, 0xDB, /* 0x6C-0x6F */
+	0xAD, 0x4C, 0xC3, 0xDC, 0xAD, 0x4D, 0xAD, 0x4E, /* 0x70-0x73 */
+	0xAD, 0x4F, 0xAD, 0x50, 0xAD, 0x51, 0xAD, 0x52, /* 0x74-0x77 */
+	0xC3, 0xDD, 0xAD, 0x53, 0xAD, 0x54, 0xAD, 0x55, /* 0x78-0x7B */
+	0xAD, 0x56, 0xAD, 0x57, 0xAD, 0x58, 0xAD, 0x59, /* 0x7C-0x7F */
+	
+	0xAD, 0x5A, 0xAD, 0x61, 0xAD, 0x62, 0xAD, 0x63, /* 0x80-0x83 */
+	0xAD, 0x64, 0xAD, 0x65, 0xAD, 0x66, 0xAD, 0x67, /* 0x84-0x87 */
+	0xC3, 0xDE, 0xAD, 0x68, 0xAD, 0x69, 0xAD, 0x6A, /* 0x88-0x8B */
+	0xAD, 0x6B, 0xAD, 0x6C, 0xAD, 0x6D, 0xAD, 0x6E, /* 0x8C-0x8F */
+	0xAD, 0x6F, 0xAD, 0x70, 0xAD, 0x71, 0xAD, 0x72, /* 0x90-0x93 */
+	0xC3, 0xDF, 0xC3, 0xE0, 0xAD, 0x73, 0xAD, 0x74, /* 0x94-0x97 */
+	0xC3, 0xE1, 0xAD, 0x75, 0xAD, 0x76, 0xAD, 0x77, /* 0x98-0x9B */
+	0xC3, 0xE2, 0xAD, 0x78, 0xAD, 0x79, 0xAD, 0x7A, /* 0x9C-0x9F */
+	0xAD, 0x81, 0xAD, 0x82, 0xAD, 0x83, 0xAD, 0x84, /* 0xA0-0xA3 */
+	0xC3, 0xE3, 0xC3, 0xE4, 0xAD, 0x85, 0xC3, 0xE5, /* 0xA4-0xA7 */
+	0xAD, 0x86, 0xC3, 0xE6, 0xAD, 0x87, 0xAD, 0x88, /* 0xA8-0xAB */
+	0xAD, 0x89, 0xAD, 0x8A, 0xAD, 0x8B, 0xAD, 0x8C, /* 0xAC-0xAF */
+	0xC3, 0xE7, 0xAD, 0x8D, 0xAD, 0x8E, 0xAD, 0x8F, /* 0xB0-0xB3 */
+	0xAD, 0x90, 0xAD, 0x91, 0xAD, 0x92, 0xAD, 0x93, /* 0xB4-0xB7 */
+	0xAD, 0x94, 0xAD, 0x95, 0xAD, 0x96, 0xAD, 0x97, /* 0xB8-0xBB */
+	0xAD, 0x98, 0xAD, 0x99, 0xAD, 0x9A, 0xAD, 0x9B, /* 0xBC-0xBF */
+	0xAD, 0x9C, 0xAD, 0x9D, 0xAD, 0x9E, 0xAD, 0x9F, /* 0xC0-0xC3 */
+	0xC3, 0xE8, 0xAD, 0xA0, 0xAE, 0x41, 0xAE, 0x42, /* 0xC4-0xC7 */
+	0xAE, 0x43, 0xAE, 0x44, 0xAE, 0x45, 0xAE, 0x46, /* 0xC8-0xCB */
+	0xC3, 0xE9, 0xAE, 0x47, 0xAE, 0x48, 0xAE, 0x49, /* 0xCC-0xCF */
+	0xC3, 0xEA, 0xAE, 0x4A, 0xAE, 0x4B, 0xAE, 0x4C, /* 0xD0-0xD3 */
+	0xAE, 0x4D, 0xAE, 0x4E, 0xAE, 0x4F, 0xAE, 0x50, /* 0xD4-0xD7 */
+	0xAE, 0x51, 0xAE, 0x52, 0xAE, 0x53, 0xAE, 0x54, /* 0xD8-0xDB */
+	0xAE, 0x55, 0xAE, 0x56, 0xAE, 0x57, 0xAE, 0x58, /* 0xDC-0xDF */
+	0xAE, 0x59, 0xAE, 0x5A, 0xAE, 0x61, 0xAE, 0x62, /* 0xE0-0xE3 */
+	0xAE, 0x63, 0xAE, 0x64, 0xAE, 0x65, 0xAE, 0x66, /* 0xE4-0xE7 */
+	0xC3, 0xEB, 0xAE, 0x67, 0xAE, 0x68, 0xAE, 0x69, /* 0xE8-0xEB */
+	0xC3, 0xEC, 0xAE, 0x6A, 0xAE, 0x6B, 0xAE, 0x6C, /* 0xEC-0xEF */
+	0xC3, 0xED, 0xAE, 0x6D, 0xAE, 0x6E, 0xAE, 0x6F, /* 0xF0-0xF3 */
+	0xAE, 0x70, 0xAE, 0x71, 0xAE, 0x72, 0xAE, 0x73, /* 0xF4-0xF7 */
+	0xC3, 0xEE, 0xC3, 0xEF, 0xAE, 0x74, 0xC3, 0xF0, /* 0xF8-0xFB */
+	0xAE, 0x75, 0xC3, 0xF1, 0xAE, 0x76, 0xAE, 0x77, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_CE[512] = {
+	0xAE, 0x78, 0xAE, 0x79, 0xAE, 0x7A, 0xAE, 0x81, /* 0x00-0x03 */
+	0xC3, 0xF2, 0xAE, 0x82, 0xAE, 0x83, 0xAE, 0x84, /* 0x04-0x07 */
+	0xC3, 0xF3, 0xAE, 0x85, 0xAE, 0x86, 0xAE, 0x87, /* 0x08-0x0B */
+	0xC3, 0xF4, 0xAE, 0x88, 0xAE, 0x89, 0xAE, 0x8A, /* 0x0C-0x0F */
+	0xAE, 0x8B, 0xAE, 0x8C, 0xAE, 0x8D, 0xAE, 0x8E, /* 0x10-0x13 */
+	0xC3, 0xF5, 0xAE, 0x8F, 0xAE, 0x90, 0xAE, 0x91, /* 0x14-0x17 */
+	0xAE, 0x92, 0xC3, 0xF6, 0xAE, 0x93, 0xAE, 0x94, /* 0x18-0x1B */
+	0xAE, 0x95, 0xAE, 0x96, 0xAE, 0x97, 0xAE, 0x98, /* 0x1C-0x1F */
+	0xC3, 0xF7, 0xC3, 0xF8, 0xAE, 0x99, 0xAE, 0x9A, /* 0x20-0x23 */
+	0xC3, 0xF9, 0xAE, 0x9B, 0xAE, 0x9C, 0xAE, 0x9D, /* 0x24-0x27 */
+	0xC3, 0xFA, 0xAE, 0x9E, 0xAE, 0x9F, 0xAE, 0xA0, /* 0x28-0x2B */
+	0xAF, 0x41, 0xAF, 0x42, 0xAF, 0x43, 0xAF, 0x44, /* 0x2C-0x2F */
+	0xC3, 0xFB, 0xC3, 0xFC, 0xAF, 0x45, 0xC3, 0xFD, /* 0x30-0x33 */
+	0xAF, 0x46, 0xC3, 0xFE, 0xAF, 0x47, 0xAF, 0x48, /* 0x34-0x37 */
+	0xAF, 0x49, 0xAF, 0x4A, 0xAF, 0x4B, 0xAF, 0x4C, /* 0x38-0x3B */
+	0xAF, 0x4D, 0xAF, 0x4E, 0xAF, 0x4F, 0xAF, 0x50, /* 0x3C-0x3F */
+	0xAF, 0x51, 0xAF, 0x52, 0xAF, 0x53, 0xAF, 0x54, /* 0x40-0x43 */
+	0xAF, 0x55, 0xAF, 0x56, 0xAF, 0x57, 0xAF, 0x58, /* 0x44-0x47 */
+	0xAF, 0x59, 0xAF, 0x5A, 0xAF, 0x61, 0xAF, 0x62, /* 0x48-0x4B */
+	0xAF, 0x63, 0xAF, 0x64, 0xAF, 0x65, 0xAF, 0x66, /* 0x4C-0x4F */
+	0xAF, 0x67, 0xAF, 0x68, 0xAF, 0x69, 0xAF, 0x6A, /* 0x50-0x53 */
+	0xAF, 0x6B, 0xAF, 0x6C, 0xAF, 0x6D, 0xAF, 0x6E, /* 0x54-0x57 */
+	0xC4, 0xA1, 0xC4, 0xA2, 0xAF, 0x6F, 0xAF, 0x70, /* 0x58-0x5B */
+	0xC4, 0xA3, 0xAF, 0x71, 0xAF, 0x72, 0xC4, 0xA4, /* 0x5C-0x5F */
+	0xC4, 0xA5, 0xC4, 0xA6, 0xAF, 0x73, 0xAF, 0x74, /* 0x60-0x63 */
+	0xAF, 0x75, 0xAF, 0x76, 0xAF, 0x77, 0xAF, 0x78, /* 0x64-0x67 */
+	0xC4, 0xA7, 0xC4, 0xA8, 0xAF, 0x79, 0xC4, 0xA9, /* 0x68-0x6B */
+	0xAF, 0x7A, 0xC4, 0xAA, 0xAF, 0x81, 0xAF, 0x82, /* 0x6C-0x6F */
+	0xAF, 0x83, 0xAF, 0x84, 0xAF, 0x85, 0xAF, 0x86, /* 0x70-0x73 */
+	0xC4, 0xAB, 0xC4, 0xAC, 0xAF, 0x87, 0xAF, 0x88, /* 0x74-0x77 */
+	0xC4, 0xAD, 0xAF, 0x89, 0xAF, 0x8A, 0xAF, 0x8B, /* 0x78-0x7B */
+	0xC4, 0xAE, 0xAF, 0x8C, 0xAF, 0x8D, 0xAF, 0x8E, /* 0x7C-0x7F */
+	
+	0xAF, 0x8F, 0xAF, 0x90, 0xAF, 0x91, 0xAF, 0x92, /* 0x80-0x83 */
+	0xC4, 0xAF, 0xC4, 0xB0, 0xAF, 0x93, 0xC4, 0xB1, /* 0x84-0x87 */
+	0xAF, 0x94, 0xC4, 0xB2, 0xAF, 0x95, 0xAF, 0x96, /* 0x88-0x8B */
+	0xAF, 0x97, 0xAF, 0x98, 0xAF, 0x99, 0xAF, 0x9A, /* 0x8C-0x8F */
+	0xC4, 0xB3, 0xC4, 0xB4, 0xAF, 0x9B, 0xAF, 0x9C, /* 0x90-0x93 */
+	0xC4, 0xB5, 0xAF, 0x9D, 0xAF, 0x9E, 0xAF, 0x9F, /* 0x94-0x97 */
+	0xC4, 0xB6, 0xAF, 0xA0, 0xB0, 0x41, 0xB0, 0x42, /* 0x98-0x9B */
+	0xB0, 0x43, 0xB0, 0x44, 0xB0, 0x45, 0xB0, 0x46, /* 0x9C-0x9F */
+	0xC4, 0xB7, 0xC4, 0xB8, 0xB0, 0x47, 0xC4, 0xB9, /* 0xA0-0xA3 */
+	0xC4, 0xBA, 0xC4, 0xBB, 0xB0, 0x48, 0xB0, 0x49, /* 0xA4-0xA7 */
+	0xB0, 0x4A, 0xB0, 0x4B, 0xB0, 0x4C, 0xB0, 0x4D, /* 0xA8-0xAB */
+	0xC4, 0xBC, 0xC4, 0xBD, 0xB0, 0x4E, 0xB0, 0x4F, /* 0xAC-0xAF */
+	0xB0, 0x50, 0xB0, 0x51, 0xB0, 0x52, 0xB0, 0x53, /* 0xB0-0xB3 */
+	0xB0, 0x54, 0xB0, 0x55, 0xB0, 0x56, 0xB0, 0x57, /* 0xB4-0xB7 */
+	0xB0, 0x58, 0xB0, 0x59, 0xB0, 0x5A, 0xB0, 0x61, /* 0xB8-0xBB */
+	0xB0, 0x62, 0xB0, 0x63, 0xB0, 0x64, 0xB0, 0x65, /* 0xBC-0xBF */
+	0xB0, 0x66, 0xC4, 0xBE, 0xB0, 0x67, 0xB0, 0x68, /* 0xC0-0xC3 */
+	0xB0, 0x69, 0xB0, 0x6A, 0xB0, 0x6B, 0xB0, 0x6C, /* 0xC4-0xC7 */
+	0xB0, 0x6D, 0xB0, 0x6E, 0xB0, 0x6F, 0xB0, 0x70, /* 0xC8-0xCB */
+	0xB0, 0x71, 0xB0, 0x72, 0xB0, 0x73, 0xB0, 0x74, /* 0xCC-0xCF */
+	0xB0, 0x75, 0xB0, 0x76, 0xB0, 0x77, 0xB0, 0x78, /* 0xD0-0xD3 */
+	0xB0, 0x79, 0xB0, 0x7A, 0xB0, 0x81, 0xB0, 0x82, /* 0xD4-0xD7 */
+	0xB0, 0x83, 0xB0, 0x84, 0xB0, 0x85, 0xB0, 0x86, /* 0xD8-0xDB */
+	0xB0, 0x87, 0xB0, 0x88, 0xB0, 0x89, 0xB0, 0x8A, /* 0xDC-0xDF */
+	0xB0, 0x8B, 0xB0, 0x8C, 0xB0, 0x8D, 0xB0, 0x8E, /* 0xE0-0xE3 */
+	0xC4, 0xBF, 0xC4, 0xC0, 0xB0, 0x8F, 0xB0, 0x90, /* 0xE4-0xE7 */
+	0xC4, 0xC1, 0xB0, 0x91, 0xB0, 0x92, 0xC4, 0xC2, /* 0xE8-0xEB */
+	0xC4, 0xC3, 0xB0, 0x93, 0xB0, 0x94, 0xB0, 0x95, /* 0xEC-0xEF */
+	0xB0, 0x96, 0xB0, 0x97, 0xB0, 0x98, 0xB0, 0x99, /* 0xF0-0xF3 */
+	0xC4, 0xC4, 0xC4, 0xC5, 0xB0, 0x9A, 0xC4, 0xC6, /* 0xF4-0xF7 */
+	0xC4, 0xC7, 0xC4, 0xC8, 0xB0, 0x9B, 0xB0, 0x9C, /* 0xF8-0xFB */
+	0xB0, 0x9D, 0xB0, 0x9E, 0xB0, 0x9F, 0xB0, 0xA0, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_CF[512] = {
+	0xC4, 0xC9, 0xC4, 0xCA, 0xB1, 0x41, 0xB1, 0x42, /* 0x00-0x03 */
+	0xC4, 0xCB, 0xB1, 0x43, 0xB1, 0x44, 0xB1, 0x45, /* 0x04-0x07 */
+	0xC4, 0xCC, 0xB1, 0x46, 0xB1, 0x47, 0xB1, 0x48, /* 0x08-0x0B */
+	0xB1, 0x49, 0xB1, 0x4A, 0xB1, 0x4B, 0xB1, 0x4C, /* 0x0C-0x0F */
+	0xC4, 0xCD, 0xC4, 0xCE, 0xB1, 0x4D, 0xC4, 0xCF, /* 0x10-0x13 */
+	0xB1, 0x4E, 0xC4, 0xD0, 0xB1, 0x4F, 0xB1, 0x50, /* 0x14-0x17 */
+	0xB1, 0x51, 0xB1, 0x52, 0xB1, 0x53, 0xB1, 0x54, /* 0x18-0x1B */
+	0xC4, 0xD1, 0xB1, 0x55, 0xB1, 0x56, 0xB1, 0x57, /* 0x1C-0x1F */
+	0xC4, 0xD2, 0xB1, 0x58, 0xB1, 0x59, 0xB1, 0x5A, /* 0x20-0x23 */
+	0xC4, 0xD3, 0xB1, 0x61, 0xB1, 0x62, 0xB1, 0x63, /* 0x24-0x27 */
+	0xB1, 0x64, 0xB1, 0x65, 0xB1, 0x66, 0xB1, 0x67, /* 0x28-0x2B */
+	0xC4, 0xD4, 0xC4, 0xD5, 0xB1, 0x68, 0xC4, 0xD6, /* 0x2C-0x2F */
+	0xC4, 0xD7, 0xC4, 0xD8, 0xB1, 0x69, 0xB1, 0x6A, /* 0x30-0x33 */
+	0xB1, 0x6B, 0xB1, 0x6C, 0xB1, 0x6D, 0xB1, 0x6E, /* 0x34-0x37 */
+	0xC4, 0xD9, 0xB1, 0x6F, 0xB1, 0x70, 0xB1, 0x71, /* 0x38-0x3B */
+	0xB1, 0x72, 0xB1, 0x73, 0xB1, 0x74, 0xB1, 0x75, /* 0x3C-0x3F */
+	0xB1, 0x76, 0xB1, 0x77, 0xB1, 0x78, 0xB1, 0x79, /* 0x40-0x43 */
+	0xB1, 0x7A, 0xB1, 0x81, 0xB1, 0x82, 0xB1, 0x83, /* 0x44-0x47 */
+	0xB1, 0x84, 0xB1, 0x85, 0xB1, 0x86, 0xB1, 0x87, /* 0x48-0x4B */
+	0xB1, 0x88, 0xB1, 0x89, 0xB1, 0x8A, 0xB1, 0x8B, /* 0x4C-0x4F */
+	0xB1, 0x8C, 0xB1, 0x8D, 0xB1, 0x8E, 0xB1, 0x8F, /* 0x50-0x53 */
+	0xC4, 0xDA, 0xC4, 0xDB, 0xB1, 0x90, 0xB1, 0x91, /* 0x54-0x57 */
+	0xC4, 0xDC, 0xB1, 0x92, 0xB1, 0x93, 0xB1, 0x94, /* 0x58-0x5B */
+	0xC4, 0xDD, 0xB1, 0x95, 0xB1, 0x96, 0xB1, 0x97, /* 0x5C-0x5F */
+	0xB1, 0x98, 0xB1, 0x99, 0xB1, 0x9A, 0xB1, 0x9B, /* 0x60-0x63 */
+	0xC4, 0xDE, 0xC4, 0xDF, 0xB1, 0x9C, 0xC4, 0xE0, /* 0x64-0x67 */
+	0xB1, 0x9D, 0xC4, 0xE1, 0xB1, 0x9E, 0xB1, 0x9F, /* 0x68-0x6B */
+	0xB1, 0xA0, 0xB2, 0x41, 0xB2, 0x42, 0xB2, 0x43, /* 0x6C-0x6F */
+	0xC4, 0xE2, 0xC4, 0xE3, 0xB2, 0x44, 0xB2, 0x45, /* 0x70-0x73 */
+	0xC4, 0xE4, 0xB2, 0x46, 0xB2, 0x47, 0xB2, 0x48, /* 0x74-0x77 */
+	0xC4, 0xE5, 0xB2, 0x49, 0xB2, 0x4A, 0xB2, 0x4B, /* 0x78-0x7B */
+	0xB2, 0x4C, 0xB2, 0x4D, 0xB2, 0x4E, 0xB2, 0x4F, /* 0x7C-0x7F */
+	
+	0xC4, 0xE6, 0xB2, 0x50, 0xB2, 0x51, 0xB2, 0x52, /* 0x80-0x83 */
+	0xB2, 0x53, 0xC4, 0xE7, 0xB2, 0x54, 0xB2, 0x55, /* 0x84-0x87 */
+	0xB2, 0x56, 0xB2, 0x57, 0xB2, 0x58, 0xB2, 0x59, /* 0x88-0x8B */
+	0xC4, 0xE8, 0xB2, 0x5A, 0xB2, 0x61, 0xB2, 0x62, /* 0x8C-0x8F */
+	0xB2, 0x63, 0xB2, 0x64, 0xB2, 0x65, 0xB2, 0x66, /* 0x90-0x93 */
+	0xB2, 0x67, 0xB2, 0x68, 0xB2, 0x69, 0xB2, 0x6A, /* 0x94-0x97 */
+	0xB2, 0x6B, 0xB2, 0x6C, 0xB2, 0x6D, 0xB2, 0x6E, /* 0x98-0x9B */
+	0xB2, 0x6F, 0xB2, 0x70, 0xB2, 0x71, 0xB2, 0x72, /* 0x9C-0x9F */
+	0xB2, 0x73, 0xC4, 0xE9, 0xB2, 0x74, 0xB2, 0x75, /* 0xA0-0xA3 */
+	0xB2, 0x76, 0xB2, 0x77, 0xB2, 0x78, 0xB2, 0x79, /* 0xA4-0xA7 */
+	0xC4, 0xEA, 0xB2, 0x7A, 0xB2, 0x81, 0xB2, 0x82, /* 0xA8-0xAB */
+	0xB2, 0x83, 0xB2, 0x84, 0xB2, 0x85, 0xB2, 0x86, /* 0xAC-0xAF */
+	0xC4, 0xEB, 0xB2, 0x87, 0xB2, 0x88, 0xB2, 0x89, /* 0xB0-0xB3 */
+	0xB2, 0x8A, 0xB2, 0x8B, 0xB2, 0x8C, 0xB2, 0x8D, /* 0xB4-0xB7 */
+	0xB2, 0x8E, 0xB2, 0x8F, 0xB2, 0x90, 0xB2, 0x91, /* 0xB8-0xBB */
+	0xB2, 0x92, 0xB2, 0x93, 0xB2, 0x94, 0xB2, 0x95, /* 0xBC-0xBF */
+	0xB2, 0x96, 0xB2, 0x97, 0xB2, 0x98, 0xB2, 0x99, /* 0xC0-0xC3 */
+	0xC4, 0xEC, 0xB2, 0x9A, 0xB2, 0x9B, 0xB2, 0x9C, /* 0xC4-0xC7 */
+	0xB2, 0x9D, 0xB2, 0x9E, 0xB2, 0x9F, 0xB2, 0xA0, /* 0xC8-0xCB */
+	0xB3, 0x41, 0xB3, 0x42, 0xB3, 0x43, 0xB3, 0x44, /* 0xCC-0xCF */
+	0xB3, 0x45, 0xB3, 0x46, 0xB3, 0x47, 0xB3, 0x48, /* 0xD0-0xD3 */
+	0xB3, 0x49, 0xB3, 0x4A, 0xB3, 0x4B, 0xB3, 0x4C, /* 0xD4-0xD7 */
+	0xB3, 0x4D, 0xB3, 0x4E, 0xB3, 0x4F, 0xB3, 0x50, /* 0xD8-0xDB */
+	0xB3, 0x51, 0xB3, 0x52, 0xB3, 0x53, 0xB3, 0x54, /* 0xDC-0xDF */
+	0xC4, 0xED, 0xC4, 0xEE, 0xB3, 0x55, 0xB3, 0x56, /* 0xE0-0xE3 */
+	0xC4, 0xEF, 0xB3, 0x57, 0xB3, 0x58, 0xB3, 0x59, /* 0xE4-0xE7 */
+	0xC4, 0xF0, 0xB3, 0x5A, 0xB3, 0x61, 0xB3, 0x62, /* 0xE8-0xEB */
+	0xB3, 0x63, 0xB3, 0x64, 0xB3, 0x65, 0xB3, 0x66, /* 0xEC-0xEF */
+	0xC4, 0xF1, 0xC4, 0xF2, 0xB3, 0x67, 0xC4, 0xF3, /* 0xF0-0xF3 */
+	0xB3, 0x68, 0xC4, 0xF4, 0xB3, 0x69, 0xB3, 0x6A, /* 0xF4-0xF7 */
+	0xB3, 0x6B, 0xB3, 0x6C, 0xB3, 0x6D, 0xB3, 0x6E, /* 0xF8-0xFB */
+	0xC4, 0xF5, 0xB3, 0x6F, 0xB3, 0x70, 0xB3, 0x71, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_D0[512] = {
+	0xC4, 0xF6, 0xB3, 0x72, 0xB3, 0x73, 0xB3, 0x74, /* 0x00-0x03 */
+	0xC4, 0xF7, 0xB3, 0x75, 0xB3, 0x76, 0xB3, 0x77, /* 0x04-0x07 */
+	0xB3, 0x78, 0xB3, 0x79, 0xB3, 0x7A, 0xB3, 0x81, /* 0x08-0x0B */
+	0xB3, 0x82, 0xB3, 0x83, 0xB3, 0x84, 0xB3, 0x85, /* 0x0C-0x0F */
+	0xB3, 0x86, 0xC4, 0xF8, 0xB3, 0x87, 0xB3, 0x88, /* 0x10-0x13 */
+	0xB3, 0x89, 0xB3, 0x8A, 0xB3, 0x8B, 0xB3, 0x8C, /* 0x14-0x17 */
+	0xC4, 0xF9, 0xB3, 0x8D, 0xB3, 0x8E, 0xB3, 0x8F, /* 0x18-0x1B */
+	0xB3, 0x90, 0xB3, 0x91, 0xB3, 0x92, 0xB3, 0x93, /* 0x1C-0x1F */
+	0xB3, 0x94, 0xB3, 0x95, 0xB3, 0x96, 0xB3, 0x97, /* 0x20-0x23 */
+	0xB3, 0x98, 0xB3, 0x99, 0xB3, 0x9A, 0xB3, 0x9B, /* 0x24-0x27 */
+	0xB3, 0x9C, 0xB3, 0x9D, 0xB3, 0x9E, 0xB3, 0x9F, /* 0x28-0x2B */
+	0xB3, 0xA0, 0xC4, 0xFA, 0xB4, 0x41, 0xB4, 0x42, /* 0x2C-0x2F */
+	0xB4, 0x43, 0xB4, 0x44, 0xB4, 0x45, 0xB4, 0x46, /* 0x30-0x33 */
+	0xC4, 0xFB, 0xC4, 0xFC, 0xB4, 0x47, 0xB4, 0x48, /* 0x34-0x37 */
+	0xC4, 0xFD, 0xB4, 0x49, 0xB4, 0x4A, 0xB4, 0x4B, /* 0x38-0x3B */
+	0xC4, 0xFE, 0xB4, 0x4C, 0xB4, 0x4D, 0xB4, 0x4E, /* 0x3C-0x3F */
+	0xB4, 0x4F, 0xB4, 0x50, 0xB4, 0x51, 0xB4, 0x52, /* 0x40-0x43 */
+	0xC5, 0xA1, 0xC5, 0xA2, 0xB4, 0x53, 0xC5, 0xA3, /* 0x44-0x47 */
+	0xB4, 0x54, 0xC5, 0xA4, 0xB4, 0x55, 0xB4, 0x56, /* 0x48-0x4B */
+	0xB4, 0x57, 0xB4, 0x58, 0xB4, 0x59, 0xB4, 0x5A, /* 0x4C-0x4F */
+	0xC5, 0xA5, 0xB4, 0x61, 0xB4, 0x62, 0xB4, 0x63, /* 0x50-0x53 */
+	0xC5, 0xA6, 0xB4, 0x64, 0xB4, 0x65, 0xB4, 0x66, /* 0x54-0x57 */
+	0xC5, 0xA7, 0xB4, 0x67, 0xB4, 0x68, 0xB4, 0x69, /* 0x58-0x5B */
+	0xB4, 0x6A, 0xB4, 0x6B, 0xB4, 0x6C, 0xB4, 0x6D, /* 0x5C-0x5F */
+	0xC5, 0xA8, 0xB4, 0x6E, 0xB4, 0x6F, 0xB4, 0x70, /* 0x60-0x63 */
+	0xB4, 0x71, 0xB4, 0x72, 0xB4, 0x73, 0xB4, 0x74, /* 0x64-0x67 */
+	0xB4, 0x75, 0xB4, 0x76, 0xB4, 0x77, 0xB4, 0x78, /* 0x68-0x6B */
+	0xC5, 0xA9, 0xC5, 0xAA, 0xB4, 0x79, 0xB4, 0x7A, /* 0x6C-0x6F */
+	0xC5, 0xAB, 0xB4, 0x81, 0xB4, 0x82, 0xB4, 0x83, /* 0x70-0x73 */
+	0xC5, 0xAC, 0xB4, 0x84, 0xB4, 0x85, 0xB4, 0x86, /* 0x74-0x77 */
+	0xB4, 0x87, 0xB4, 0x88, 0xB4, 0x89, 0xB4, 0x8A, /* 0x78-0x7B */
+	0xC5, 0xAD, 0xC5, 0xAE, 0xB4, 0x8B, 0xB4, 0x8C, /* 0x7C-0x7F */
+	
+	0xB4, 0x8D, 0xC5, 0xAF, 0xB4, 0x8E, 0xB4, 0x8F, /* 0x80-0x83 */
+	0xB4, 0x90, 0xB4, 0x91, 0xB4, 0x92, 0xB4, 0x93, /* 0x84-0x87 */
+	0xB4, 0x94, 0xB4, 0x95, 0xB4, 0x96, 0xB4, 0x97, /* 0x88-0x8B */
+	0xB4, 0x98, 0xB4, 0x99, 0xB4, 0x9A, 0xB4, 0x9B, /* 0x8C-0x8F */
+	0xB4, 0x9C, 0xB4, 0x9D, 0xB4, 0x9E, 0xB4, 0x9F, /* 0x90-0x93 */
+	0xB4, 0xA0, 0xB5, 0x41, 0xB5, 0x42, 0xB5, 0x43, /* 0x94-0x97 */
+	0xB5, 0x44, 0xB5, 0x45, 0xB5, 0x46, 0xB5, 0x47, /* 0x98-0x9B */
+	0xB5, 0x48, 0xB5, 0x49, 0xB5, 0x4A, 0xB5, 0x4B, /* 0x9C-0x9F */
+	0xB5, 0x4C, 0xB5, 0x4D, 0xB5, 0x4E, 0xB5, 0x4F, /* 0xA0-0xA3 */
+	0xC5, 0xB0, 0xC5, 0xB1, 0xB5, 0x50, 0xB5, 0x51, /* 0xA4-0xA7 */
+	0xC5, 0xB2, 0xB5, 0x52, 0xB5, 0x53, 0xB5, 0x54, /* 0xA8-0xAB */
+	0xC5, 0xB3, 0xB5, 0x55, 0xB5, 0x56, 0xB5, 0x57, /* 0xAC-0xAF */
+	0xB5, 0x58, 0xB5, 0x59, 0xB5, 0x5A, 0xB5, 0x61, /* 0xB0-0xB3 */
+	0xC5, 0xB4, 0xC5, 0xB5, 0xB5, 0x62, 0xC5, 0xB6, /* 0xB4-0xB7 */
+	0xB5, 0x63, 0xC5, 0xB7, 0xB5, 0x64, 0xB5, 0x65, /* 0xB8-0xBB */
+	0xB5, 0x66, 0xB5, 0x67, 0xB5, 0x68, 0xB5, 0x69, /* 0xBC-0xBF */
+	0xC5, 0xB8, 0xC5, 0xB9, 0xB5, 0x6A, 0xB5, 0x6B, /* 0xC0-0xC3 */
+	0xC5, 0xBA, 0xB5, 0x6C, 0xB5, 0x6D, 0xB5, 0x6E, /* 0xC4-0xC7 */
+	0xC5, 0xBB, 0xC5, 0xBC, 0xB5, 0x6F, 0xB5, 0x70, /* 0xC8-0xCB */
+	0xB5, 0x71, 0xB5, 0x72, 0xB5, 0x73, 0xB5, 0x74, /* 0xCC-0xCF */
+	0xC5, 0xBD, 0xC5, 0xBE, 0xB5, 0x75, 0xC5, 0xBF, /* 0xD0-0xD3 */
+	0xC5, 0xC0, 0xC5, 0xC1, 0xB5, 0x76, 0xB5, 0x77, /* 0xD4-0xD7 */
+	0xB5, 0x78, 0xB5, 0x79, 0xB5, 0x7A, 0xB5, 0x81, /* 0xD8-0xDB */
+	0xC5, 0xC2, 0xC5, 0xC3, 0xB5, 0x82, 0xB5, 0x83, /* 0xDC-0xDF */
+	0xC5, 0xC4, 0xB5, 0x84, 0xB5, 0x85, 0xB5, 0x86, /* 0xE0-0xE3 */
+	0xC5, 0xC5, 0xB5, 0x87, 0xB5, 0x88, 0xB5, 0x89, /* 0xE4-0xE7 */
+	0xB5, 0x8A, 0xB5, 0x8B, 0xB5, 0x8C, 0xB5, 0x8D, /* 0xE8-0xEB */
+	0xC5, 0xC6, 0xC5, 0xC7, 0xB5, 0x8E, 0xC5, 0xC8, /* 0xEC-0xEF */
+	0xC5, 0xC9, 0xC5, 0xCA, 0xB5, 0x8F, 0xB5, 0x90, /* 0xF0-0xF3 */
+	0xB5, 0x91, 0xB5, 0x92, 0xB5, 0x93, 0xB5, 0x94, /* 0xF4-0xF7 */
+	0xC5, 0xCB, 0xB5, 0x95, 0xB5, 0x96, 0xB5, 0x97, /* 0xF8-0xFB */
+	0xB5, 0x98, 0xB5, 0x99, 0xB5, 0x9A, 0xB5, 0x9B, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_D1[512] = {
+	0xB5, 0x9C, 0xB5, 0x9D, 0xB5, 0x9E, 0xB5, 0x9F, /* 0x00-0x03 */
+	0xB5, 0xA0, 0xB6, 0x41, 0xB6, 0x42, 0xB6, 0x43, /* 0x04-0x07 */
+	0xB6, 0x44, 0xB6, 0x45, 0xB6, 0x46, 0xB6, 0x47, /* 0x08-0x0B */
+	0xB6, 0x48, 0xC5, 0xCC, 0xB6, 0x49, 0xB6, 0x4A, /* 0x0C-0x0F */
+	0xB6, 0x4B, 0xB6, 0x4C, 0xB6, 0x4D, 0xB6, 0x4E, /* 0x10-0x13 */
+	0xB6, 0x4F, 0xB6, 0x50, 0xB6, 0x51, 0xB6, 0x52, /* 0x14-0x17 */
+	0xB6, 0x53, 0xB6, 0x54, 0xB6, 0x55, 0xB6, 0x56, /* 0x18-0x1B */
+	0xB6, 0x57, 0xB6, 0x58, 0xB6, 0x59, 0xB6, 0x5A, /* 0x1C-0x1F */
+	0xB6, 0x61, 0xB6, 0x62, 0xB6, 0x63, 0xB6, 0x64, /* 0x20-0x23 */
+	0xB6, 0x65, 0xB6, 0x66, 0xB6, 0x67, 0xB6, 0x68, /* 0x24-0x27 */
+	0xB6, 0x69, 0xB6, 0x6A, 0xB6, 0x6B, 0xB6, 0x6C, /* 0x28-0x2B */
+	0xB6, 0x6D, 0xB6, 0x6E, 0xB6, 0x6F, 0xB6, 0x70, /* 0x2C-0x2F */
+	0xC5, 0xCD, 0xC5, 0xCE, 0xB6, 0x71, 0xB6, 0x72, /* 0x30-0x33 */
+	0xC5, 0xCF, 0xB6, 0x73, 0xB6, 0x74, 0xB6, 0x75, /* 0x34-0x37 */
+	0xC5, 0xD0, 0xB6, 0x76, 0xC5, 0xD1, 0xB6, 0x77, /* 0x38-0x3B */
+	0xB6, 0x78, 0xB6, 0x79, 0xB6, 0x7A, 0xB6, 0x81, /* 0x3C-0x3F */
+	0xC5, 0xD2, 0xC5, 0xD3, 0xB6, 0x82, 0xC5, 0xD4, /* 0x40-0x43 */
+	0xC5, 0xD5, 0xC5, 0xD6, 0xB6, 0x83, 0xB6, 0x84, /* 0x44-0x47 */
+	0xB6, 0x85, 0xB6, 0x86, 0xB6, 0x87, 0xB6, 0x88, /* 0x48-0x4B */
+	0xC5, 0xD7, 0xC5, 0xD8, 0xB6, 0x89, 0xB6, 0x8A, /* 0x4C-0x4F */
+	0xC5, 0xD9, 0xB6, 0x8B, 0xB6, 0x8C, 0xB6, 0x8D, /* 0x50-0x53 */
+	0xC5, 0xDA, 0xB6, 0x8E, 0xB6, 0x8F, 0xB6, 0x90, /* 0x54-0x57 */
+	0xB6, 0x91, 0xB6, 0x92, 0xB6, 0x93, 0xB6, 0x94, /* 0x58-0x5B */
+	0xC5, 0xDB, 0xC5, 0xDC, 0xB6, 0x95, 0xC5, 0xDD, /* 0x5C-0x5F */
+	0xB6, 0x96, 0xC5, 0xDE, 0xB6, 0x97, 0xB6, 0x98, /* 0x60-0x63 */
+	0xB6, 0x99, 0xB6, 0x9A, 0xB6, 0x9B, 0xB6, 0x9C, /* 0x64-0x67 */
+	0xC5, 0xDF, 0xB6, 0x9D, 0xB6, 0x9E, 0xB6, 0x9F, /* 0x68-0x6B */
+	0xC5, 0xE0, 0xB6, 0xA0, 0xB7, 0x41, 0xB7, 0x42, /* 0x6C-0x6F */
+	0xB7, 0x43, 0xB7, 0x44, 0xB7, 0x45, 0xB7, 0x46, /* 0x70-0x73 */
+	0xB7, 0x47, 0xB7, 0x48, 0xB7, 0x49, 0xB7, 0x4A, /* 0x74-0x77 */
+	0xB7, 0x4B, 0xB7, 0x4C, 0xB7, 0x4D, 0xB7, 0x4E, /* 0x78-0x7B */
+	0xC5, 0xE1, 0xB7, 0x4F, 0xB7, 0x50, 0xB7, 0x51, /* 0x7C-0x7F */
+	
+	0xB7, 0x52, 0xB7, 0x53, 0xB7, 0x54, 0xB7, 0x55, /* 0x80-0x83 */
+	0xC5, 0xE2, 0xB7, 0x56, 0xB7, 0x57, 0xB7, 0x58, /* 0x84-0x87 */
+	0xC5, 0xE3, 0xB7, 0x59, 0xB7, 0x5A, 0xB7, 0x61, /* 0x88-0x8B */
+	0xB7, 0x62, 0xB7, 0x63, 0xB7, 0x64, 0xB7, 0x65, /* 0x8C-0x8F */
+	0xB7, 0x66, 0xB7, 0x67, 0xB7, 0x68, 0xB7, 0x69, /* 0x90-0x93 */
+	0xB7, 0x6A, 0xB7, 0x6B, 0xB7, 0x6C, 0xB7, 0x6D, /* 0x94-0x97 */
+	0xB7, 0x6E, 0xB7, 0x6F, 0xB7, 0x70, 0xB7, 0x71, /* 0x98-0x9B */
+	0xB7, 0x72, 0xB7, 0x73, 0xB7, 0x74, 0xB7, 0x75, /* 0x9C-0x9F */
+	0xC5, 0xE4, 0xC5, 0xE5, 0xB7, 0x76, 0xB7, 0x77, /* 0xA0-0xA3 */
+	0xC5, 0xE6, 0xB7, 0x78, 0xB7, 0x79, 0xB7, 0x7A, /* 0xA4-0xA7 */
+	0xC5, 0xE7, 0xB7, 0x81, 0xB7, 0x82, 0xB7, 0x83, /* 0xA8-0xAB */
+	0xB7, 0x84, 0xB7, 0x85, 0xB7, 0x86, 0xB7, 0x87, /* 0xAC-0xAF */
+	0xC5, 0xE8, 0xC5, 0xE9, 0xB7, 0x88, 0xC5, 0xEA, /* 0xB0-0xB3 */
+	0xB7, 0x89, 0xC5, 0xEB, 0xB7, 0x8A, 0xB7, 0x8B, /* 0xB4-0xB7 */
+	0xB7, 0x8C, 0xB7, 0x8D, 0xC5, 0xEC, 0xB7, 0x8E, /* 0xB8-0xBB */
+	0xC5, 0xED, 0xB7, 0x8F, 0xB7, 0x90, 0xB7, 0x91, /* 0xBC-0xBF */
+	0xC5, 0xEE, 0xB7, 0x92, 0xB7, 0x93, 0xB7, 0x94, /* 0xC0-0xC3 */
+	0xB7, 0x95, 0xB7, 0x96, 0xB7, 0x97, 0xB7, 0x98, /* 0xC4-0xC7 */
+	0xB7, 0x99, 0xB7, 0x9A, 0xB7, 0x9B, 0xB7, 0x9C, /* 0xC8-0xCB */
+	0xB7, 0x9D, 0xB7, 0x9E, 0xB7, 0x9F, 0xB7, 0xA0, /* 0xCC-0xCF */
+	0xB8, 0x41, 0xB8, 0x42, 0xB8, 0x43, 0xB8, 0x44, /* 0xD0-0xD3 */
+	0xB8, 0x45, 0xB8, 0x46, 0xB8, 0x47, 0xB8, 0x48, /* 0xD4-0xD7 */
+	0xC5, 0xEF, 0xB8, 0x49, 0xB8, 0x4A, 0xB8, 0x4B, /* 0xD8-0xDB */
+	0xB8, 0x4C, 0xB8, 0x4D, 0xB8, 0x4E, 0xB8, 0x4F, /* 0xDC-0xDF */
+	0xB8, 0x50, 0xB8, 0x51, 0xB8, 0x52, 0xB8, 0x53, /* 0xE0-0xE3 */
+	0xB8, 0x54, 0xB8, 0x55, 0xB8, 0x56, 0xB8, 0x57, /* 0xE4-0xE7 */
+	0xB8, 0x58, 0xB8, 0x59, 0xB8, 0x5A, 0xB8, 0x61, /* 0xE8-0xEB */
+	0xB8, 0x62, 0xB8, 0x63, 0xB8, 0x64, 0xB8, 0x65, /* 0xEC-0xEF */
+	0xB8, 0x66, 0xB8, 0x67, 0xB8, 0x68, 0xB8, 0x69, /* 0xF0-0xF3 */
+	0xC5, 0xF0, 0xB8, 0x6A, 0xB8, 0x6B, 0xB8, 0x6C, /* 0xF4-0xF7 */
+	0xC5, 0xF1, 0xB8, 0x6D, 0xB8, 0x6E, 0xB8, 0x6F, /* 0xF8-0xFB */
+	0xB8, 0x70, 0xB8, 0x71, 0xB8, 0x72, 0xB8, 0x73, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_D2[512] = {
+	0xB8, 0x74, 0xB8, 0x75, 0xB8, 0x76, 0xB8, 0x77, /* 0x00-0x03 */
+	0xB8, 0x78, 0xB8, 0x79, 0xB8, 0x7A, 0xC5, 0xF2, /* 0x04-0x07 */
+	0xB8, 0x81, 0xC5, 0xF3, 0xB8, 0x82, 0xB8, 0x83, /* 0x08-0x0B */
+	0xB8, 0x84, 0xB8, 0x85, 0xB8, 0x86, 0xB8, 0x87, /* 0x0C-0x0F */
+	0xC5, 0xF4, 0xB8, 0x88, 0xB8, 0x89, 0xB8, 0x8A, /* 0x10-0x13 */
+	0xB8, 0x8B, 0xB8, 0x8C, 0xB8, 0x8D, 0xB8, 0x8E, /* 0x14-0x17 */
+	0xB8, 0x8F, 0xB8, 0x90, 0xB8, 0x91, 0xB8, 0x92, /* 0x18-0x1B */
+	0xB8, 0x93, 0xB8, 0x94, 0xB8, 0x95, 0xB8, 0x96, /* 0x1C-0x1F */
+	0xB8, 0x97, 0xB8, 0x98, 0xB8, 0x99, 0xB8, 0x9A, /* 0x20-0x23 */
+	0xB8, 0x9B, 0xB8, 0x9C, 0xB8, 0x9D, 0xB8, 0x9E, /* 0x24-0x27 */
+	0xB8, 0x9F, 0xB8, 0xA0, 0xB9, 0x41, 0xB9, 0x42, /* 0x28-0x2B */
+	0xC5, 0xF5, 0xC5, 0xF6, 0xB9, 0x43, 0xB9, 0x44, /* 0x2C-0x2F */
+	0xC5, 0xF7, 0xB9, 0x45, 0xB9, 0x46, 0xB9, 0x47, /* 0x30-0x33 */
+	0xC5, 0xF8, 0xB9, 0x48, 0xB9, 0x49, 0xB9, 0x4A, /* 0x34-0x37 */
+	0xB9, 0x4B, 0xB9, 0x4C, 0xB9, 0x4D, 0xB9, 0x4E, /* 0x38-0x3B */
+	0xC5, 0xF9, 0xC5, 0xFA, 0xB9, 0x4F, 0xC5, 0xFB, /* 0x3C-0x3F */
+	0xB9, 0x50, 0xC5, 0xFC, 0xB9, 0x51, 0xB9, 0x52, /* 0x40-0x43 */
+	0xB9, 0x53, 0xB9, 0x54, 0xB9, 0x55, 0xB9, 0x56, /* 0x44-0x47 */
+	0xC5, 0xFD, 0xB9, 0x57, 0xB9, 0x58, 0xB9, 0x59, /* 0x48-0x4B */
+	0xB9, 0x5A, 0xB9, 0x61, 0xB9, 0x62, 0xB9, 0x63, /* 0x4C-0x4F */
+	0xB9, 0x64, 0xB9, 0x65, 0xB9, 0x66, 0xB9, 0x67, /* 0x50-0x53 */
+	0xB9, 0x68, 0xB9, 0x69, 0xB9, 0x6A, 0xB9, 0x6B, /* 0x54-0x57 */
+	0xB9, 0x6C, 0xB9, 0x6D, 0xB9, 0x6E, 0xB9, 0x6F, /* 0x58-0x5B */
+	0xC5, 0xFE, 0xB9, 0x70, 0xB9, 0x71, 0xB9, 0x72, /* 0x5C-0x5F */
+	0xB9, 0x73, 0xB9, 0x74, 0xB9, 0x75, 0xB9, 0x76, /* 0x60-0x63 */
+	0xC6, 0xA1, 0xB9, 0x77, 0xB9, 0x78, 0xB9, 0x79, /* 0x64-0x67 */
+	0xB9, 0x7A, 0xB9, 0x81, 0xB9, 0x82, 0xB9, 0x83, /* 0x68-0x6B */
+	0xB9, 0x84, 0xB9, 0x85, 0xB9, 0x86, 0xB9, 0x87, /* 0x6C-0x6F */
+	0xB9, 0x88, 0xB9, 0x89, 0xB9, 0x8A, 0xB9, 0x8B, /* 0x70-0x73 */
+	0xB9, 0x8C, 0xB9, 0x8D, 0xB9, 0x8E, 0xB9, 0x8F, /* 0x74-0x77 */
+	0xB9, 0x90, 0xB9, 0x91, 0xB9, 0x92, 0xB9, 0x93, /* 0x78-0x7B */
+	0xB9, 0x94, 0xB9, 0x95, 0xB9, 0x96, 0xB9, 0x97, /* 0x7C-0x7F */
+	
+	0xC6, 0xA2, 0xC6, 0xA3, 0xB9, 0x98, 0xB9, 0x99, /* 0x80-0x83 */
+	0xC6, 0xA4, 0xB9, 0x9A, 0xB9, 0x9B, 0xB9, 0x9C, /* 0x84-0x87 */
+	0xC6, 0xA5, 0xB9, 0x9D, 0xB9, 0x9E, 0xB9, 0x9F, /* 0x88-0x8B */
+	0xB9, 0xA0, 0xBA, 0x41, 0xBA, 0x42, 0xBA, 0x43, /* 0x8C-0x8F */
+	0xC6, 0xA6, 0xC6, 0xA7, 0xBA, 0x44, 0xBA, 0x45, /* 0x90-0x93 */
+	0xBA, 0x46, 0xC6, 0xA8, 0xBA, 0x47, 0xBA, 0x48, /* 0x94-0x97 */
+	0xBA, 0x49, 0xBA, 0x4A, 0xBA, 0x4B, 0xBA, 0x4C, /* 0x98-0x9B */
+	0xC6, 0xA9, 0xBA, 0x4D, 0xBA, 0x4E, 0xBA, 0x4F, /* 0x9C-0x9F */
+	0xC6, 0xAA, 0xBA, 0x50, 0xBA, 0x51, 0xBA, 0x52, /* 0xA0-0xA3 */
+	0xC6, 0xAB, 0xBA, 0x53, 0xBA, 0x54, 0xBA, 0x55, /* 0xA4-0xA7 */
+	0xBA, 0x56, 0xBA, 0x57, 0xBA, 0x58, 0xBA, 0x59, /* 0xA8-0xAB */
+	0xC6, 0xAC, 0xBA, 0x5A, 0xBA, 0x61, 0xBA, 0x62, /* 0xAC-0xAF */
+	0xBA, 0x63, 0xC6, 0xAD, 0xBA, 0x64, 0xBA, 0x65, /* 0xB0-0xB3 */
+	0xBA, 0x66, 0xBA, 0x67, 0xBA, 0x68, 0xBA, 0x69, /* 0xB4-0xB7 */
+	0xC6, 0xAE, 0xC6, 0xAF, 0xBA, 0x6A, 0xBA, 0x6B, /* 0xB8-0xBB */
+	0xC6, 0xB0, 0xBA, 0x6C, 0xBA, 0x6D, 0xC6, 0xB1, /* 0xBC-0xBF */
+	0xC6, 0xB2, 0xBA, 0x6E, 0xC6, 0xB3, 0xBA, 0x6F, /* 0xC0-0xC3 */
+	0xBA, 0x70, 0xBA, 0x71, 0xBA, 0x72, 0xBA, 0x73, /* 0xC4-0xC7 */
+	0xC6, 0xB4, 0xC6, 0xB5, 0xBA, 0x74, 0xC6, 0xB6, /* 0xC8-0xCB */
+	0xBA, 0x75, 0xBA, 0x76, 0xBA, 0x77, 0xBA, 0x78, /* 0xCC-0xCF */
+	0xBA, 0x79, 0xBA, 0x7A, 0xBA, 0x81, 0xBA, 0x82, /* 0xD0-0xD3 */
+	0xC6, 0xB7, 0xBA, 0x83, 0xBA, 0x84, 0xBA, 0x85, /* 0xD4-0xD7 */
+	0xC6, 0xB8, 0xBA, 0x86, 0xBA, 0x87, 0xBA, 0x88, /* 0xD8-0xDB */
+	0xC6, 0xB9, 0xBA, 0x89, 0xBA, 0x8A, 0xBA, 0x8B, /* 0xDC-0xDF */
+	0xBA, 0x8C, 0xBA, 0x8D, 0xBA, 0x8E, 0xBA, 0x8F, /* 0xE0-0xE3 */
+	0xC6, 0xBA, 0xC6, 0xBB, 0xBA, 0x90, 0xBA, 0x91, /* 0xE4-0xE7 */
+	0xBA, 0x92, 0xBA, 0x93, 0xBA, 0x94, 0xBA, 0x95, /* 0xE8-0xEB */
+	0xBA, 0x96, 0xBA, 0x97, 0xBA, 0x98, 0xBA, 0x99, /* 0xEC-0xEF */
+	0xC6, 0xBC, 0xC6, 0xBD, 0xBA, 0x9A, 0xBA, 0x9B, /* 0xF0-0xF3 */
+	0xC6, 0xBE, 0xBA, 0x9C, 0xBA, 0x9D, 0xBA, 0x9E, /* 0xF4-0xF7 */
+	0xC6, 0xBF, 0xBA, 0x9F, 0xBA, 0xA0, 0xBB, 0x41, /* 0xF8-0xFB */
+	0xBB, 0x42, 0xBB, 0x43, 0xBB, 0x44, 0xBB, 0x45, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_D3[512] = {
+	0xC6, 0xC0, 0xC6, 0xC1, 0xBB, 0x46, 0xC6, 0xC2, /* 0x00-0x03 */
+	0xBB, 0x47, 0xC6, 0xC3, 0xBB, 0x48, 0xBB, 0x49, /* 0x04-0x07 */
+	0xBB, 0x4A, 0xBB, 0x4B, 0xBB, 0x4C, 0xBB, 0x4D, /* 0x08-0x0B */
+	0xC6, 0xC4, 0xC6, 0xC5, 0xC6, 0xC6, 0xBB, 0x4E, /* 0x0C-0x0F */
+	0xC6, 0xC7, 0xBB, 0x4F, 0xBB, 0x50, 0xBB, 0x51, /* 0x10-0x13 */
+	0xC6, 0xC8, 0xBB, 0x52, 0xC6, 0xC9, 0xBB, 0x53, /* 0x14-0x17 */
+	0xBB, 0x54, 0xBB, 0x55, 0xBB, 0x56, 0xBB, 0x57, /* 0x18-0x1B */
+	0xC6, 0xCA, 0xC6, 0xCB, 0xBB, 0x58, 0xC6, 0xCC, /* 0x1C-0x1F */
+	0xC6, 0xCD, 0xC6, 0xCE, 0xBB, 0x59, 0xBB, 0x5A, /* 0x20-0x23 */
+	0xBB, 0x61, 0xC6, 0xCF, 0xBB, 0x62, 0xBB, 0x63, /* 0x24-0x27 */
+	0xC6, 0xD0, 0xC6, 0xD1, 0xBB, 0x64, 0xBB, 0x65, /* 0x28-0x2B */
+	0xC6, 0xD2, 0xBB, 0x66, 0xBB, 0x67, 0xBB, 0x68, /* 0x2C-0x2F */
+	0xC6, 0xD3, 0xBB, 0x69, 0xBB, 0x6A, 0xBB, 0x6B, /* 0x30-0x33 */
+	0xBB, 0x6C, 0xBB, 0x6D, 0xBB, 0x6E, 0xBB, 0x6F, /* 0x34-0x37 */
+	0xC6, 0xD4, 0xC6, 0xD5, 0xBB, 0x70, 0xC6, 0xD6, /* 0x38-0x3B */
+	0xC6, 0xD7, 0xC6, 0xD8, 0xBB, 0x71, 0xBB, 0x72, /* 0x3C-0x3F */
+	0xBB, 0x73, 0xBB, 0x74, 0xBB, 0x75, 0xBB, 0x76, /* 0x40-0x43 */
+	0xC6, 0xD9, 0xC6, 0xDA, 0xBB, 0x77, 0xBB, 0x78, /* 0x44-0x47 */
+	0xBB, 0x79, 0xBB, 0x7A, 0xBB, 0x81, 0xBB, 0x82, /* 0x48-0x4B */
+	0xBB, 0x83, 0xBB, 0x84, 0xBB, 0x85, 0xBB, 0x86, /* 0x4C-0x4F */
+	0xBB, 0x87, 0xBB, 0x88, 0xBB, 0x89, 0xBB, 0x8A, /* 0x50-0x53 */
+	0xBB, 0x8B, 0xBB, 0x8C, 0xBB, 0x8D, 0xBB, 0x8E, /* 0x54-0x57 */
+	0xBB, 0x8F, 0xBB, 0x90, 0xBB, 0x91, 0xBB, 0x92, /* 0x58-0x5B */
+	0xBB, 0x93, 0xBB, 0x94, 0xBB, 0x95, 0xBB, 0x96, /* 0x5C-0x5F */
+	0xBB, 0x97, 0xBB, 0x98, 0xBB, 0x99, 0xBB, 0x9A, /* 0x60-0x63 */
+	0xBB, 0x9B, 0xBB, 0x9C, 0xBB, 0x9D, 0xBB, 0x9E, /* 0x64-0x67 */
+	0xBB, 0x9F, 0xBB, 0xA0, 0xBC, 0x41, 0xBC, 0x42, /* 0x68-0x6B */
+	0xBC, 0x43, 0xBC, 0x44, 0xBC, 0x45, 0xBC, 0x46, /* 0x6C-0x6F */
+	0xBC, 0x47, 0xBC, 0x48, 0xBC, 0x49, 0xBC, 0x4A, /* 0x70-0x73 */
+	0xBC, 0x4B, 0xBC, 0x4C, 0xBC, 0x4D, 0xBC, 0x4E, /* 0x74-0x77 */
+	0xBC, 0x4F, 0xBC, 0x50, 0xBC, 0x51, 0xBC, 0x52, /* 0x78-0x7B */
+	0xC6, 0xDB, 0xC6, 0xDC, 0xBC, 0x53, 0xBC, 0x54, /* 0x7C-0x7F */
+	
+	0xC6, 0xDD, 0xBC, 0x55, 0xBC, 0x56, 0xBC, 0x57, /* 0x80-0x83 */
+	0xC6, 0xDE, 0xBC, 0x58, 0xBC, 0x59, 0xBC, 0x5A, /* 0x84-0x87 */
+	0xBC, 0x61, 0xBC, 0x62, 0xBC, 0x63, 0xBC, 0x64, /* 0x88-0x8B */
+	0xC6, 0xDF, 0xC6, 0xE0, 0xBC, 0x65, 0xC6, 0xE1, /* 0x8C-0x8F */
+	0xC6, 0xE2, 0xC6, 0xE3, 0xBC, 0x66, 0xBC, 0x67, /* 0x90-0x93 */
+	0xBC, 0x68, 0xBC, 0x69, 0xBC, 0x6A, 0xBC, 0x6B, /* 0x94-0x97 */
+	0xC6, 0xE4, 0xC6, 0xE5, 0xBC, 0x6C, 0xBC, 0x6D, /* 0x98-0x9B */
+	0xC6, 0xE6, 0xBC, 0x6E, 0xBC, 0x6F, 0xBC, 0x70, /* 0x9C-0x9F */
+	0xC6, 0xE7, 0xBC, 0x71, 0xBC, 0x72, 0xBC, 0x73, /* 0xA0-0xA3 */
+	0xBC, 0x74, 0xBC, 0x75, 0xBC, 0x76, 0xBC, 0x77, /* 0xA4-0xA7 */
+	0xC6, 0xE8, 0xC6, 0xE9, 0xBC, 0x78, 0xC6, 0xEA, /* 0xA8-0xAB */
+	0xBC, 0x79, 0xC6, 0xEB, 0xBC, 0x7A, 0xBC, 0x81, /* 0xAC-0xAF */
+	0xBC, 0x82, 0xBC, 0x83, 0xBC, 0x84, 0xBC, 0x85, /* 0xB0-0xB3 */
+	0xC6, 0xEC, 0xBC, 0x86, 0xBC, 0x87, 0xBC, 0x88, /* 0xB4-0xB7 */
+	0xC6, 0xED, 0xBC, 0x89, 0xBC, 0x8A, 0xBC, 0x8B, /* 0xB8-0xBB */
+	0xC6, 0xEE, 0xBC, 0x8C, 0xBC, 0x8D, 0xBC, 0x8E, /* 0xBC-0xBF */
+	0xBC, 0x8F, 0xBC, 0x90, 0xBC, 0x91, 0xBC, 0x92, /* 0xC0-0xC3 */
+	0xC6, 0xEF, 0xC6, 0xF0, 0xBC, 0x93, 0xBC, 0x94, /* 0xC4-0xC7 */
+	0xC6, 0xF1, 0xC6, 0xF2, 0xBC, 0x95, 0xBC, 0x96, /* 0xC8-0xCB */
+	0xBC, 0x97, 0xBC, 0x98, 0xBC, 0x99, 0xBC, 0x9A, /* 0xCC-0xCF */
+	0xC6, 0xF3, 0xBC, 0x9B, 0xBC, 0x9C, 0xBC, 0x9D, /* 0xD0-0xD3 */
+	0xBC, 0x9E, 0xBC, 0x9F, 0xBC, 0xA0, 0xBD, 0x41, /* 0xD4-0xD7 */
+	0xC6, 0xF4, 0xBD, 0x42, 0xBD, 0x43, 0xBD, 0x44, /* 0xD8-0xDB */
+	0xBD, 0x45, 0xBD, 0x46, 0xBD, 0x47, 0xBD, 0x48, /* 0xDC-0xDF */
+	0xBD, 0x49, 0xC6, 0xF5, 0xBD, 0x4A, 0xC6, 0xF6, /* 0xE0-0xE3 */
+	0xBD, 0x4B, 0xBD, 0x4C, 0xBD, 0x4D, 0xBD, 0x4E, /* 0xE4-0xE7 */
+	0xBD, 0x4F, 0xBD, 0x50, 0xBD, 0x51, 0xBD, 0x52, /* 0xE8-0xEB */
+	0xC6, 0xF7, 0xC6, 0xF8, 0xBD, 0x53, 0xBD, 0x54, /* 0xEC-0xEF */
+	0xC6, 0xF9, 0xBD, 0x55, 0xBD, 0x56, 0xBD, 0x57, /* 0xF0-0xF3 */
+	0xC6, 0xFA, 0xBD, 0x58, 0xBD, 0x59, 0xBD, 0x5A, /* 0xF4-0xF7 */
+	0xBD, 0x61, 0xBD, 0x62, 0xBD, 0x63, 0xBD, 0x64, /* 0xF8-0xFB */
+	0xC6, 0xFB, 0xC6, 0xFC, 0xBD, 0x65, 0xC6, 0xFD, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_D4[512] = {
+	0xBD, 0x66, 0xC6, 0xFE, 0xBD, 0x67, 0xBD, 0x68, /* 0x00-0x03 */
+	0xBD, 0x69, 0xBD, 0x6A, 0xBD, 0x6B, 0xBD, 0x6C, /* 0x04-0x07 */
+	0xC7, 0xA1, 0xBD, 0x6D, 0xBD, 0x6E, 0xBD, 0x6F, /* 0x08-0x0B */
+	0xBD, 0x70, 0xBD, 0x71, 0xBD, 0x72, 0xBD, 0x73, /* 0x0C-0x0F */
+	0xBD, 0x74, 0xBD, 0x75, 0xBD, 0x76, 0xBD, 0x77, /* 0x10-0x13 */
+	0xBD, 0x78, 0xBD, 0x79, 0xBD, 0x7A, 0xBD, 0x81, /* 0x14-0x17 */
+	0xBD, 0x82, 0xBD, 0x83, 0xBD, 0x84, 0xBD, 0x85, /* 0x18-0x1B */
+	0xBD, 0x86, 0xC7, 0xA2, 0xBD, 0x87, 0xBD, 0x88, /* 0x1C-0x1F */
+	0xBD, 0x89, 0xBD, 0x8A, 0xBD, 0x8B, 0xBD, 0x8C, /* 0x20-0x23 */
+	0xBD, 0x8D, 0xBD, 0x8E, 0xBD, 0x8F, 0xBD, 0x90, /* 0x24-0x27 */
+	0xBD, 0x91, 0xBD, 0x92, 0xBD, 0x93, 0xBD, 0x94, /* 0x28-0x2B */
+	0xBD, 0x95, 0xBD, 0x96, 0xBD, 0x97, 0xBD, 0x98, /* 0x2C-0x2F */
+	0xBD, 0x99, 0xBD, 0x9A, 0xBD, 0x9B, 0xBD, 0x9C, /* 0x30-0x33 */
+	0xBD, 0x9D, 0xBD, 0x9E, 0xBD, 0x9F, 0xBD, 0xA0, /* 0x34-0x37 */
+	0xBE, 0x41, 0xBE, 0x42, 0xBE, 0x43, 0xBE, 0x44, /* 0x38-0x3B */
+	0xBE, 0x45, 0xBE, 0x46, 0xBE, 0x47, 0xBE, 0x48, /* 0x3C-0x3F */
+	0xC7, 0xA3, 0xBE, 0x49, 0xBE, 0x4A, 0xBE, 0x4B, /* 0x40-0x43 */
+	0xC7, 0xA4, 0xBE, 0x4C, 0xBE, 0x4D, 0xBE, 0x4E, /* 0x44-0x47 */
+	0xBE, 0x4F, 0xBE, 0x50, 0xBE, 0x51, 0xBE, 0x52, /* 0x48-0x4B */
+	0xBE, 0x53, 0xBE, 0x54, 0xBE, 0x55, 0xBE, 0x56, /* 0x4C-0x4F */
+	0xBE, 0x57, 0xBE, 0x58, 0xBE, 0x59, 0xBE, 0x5A, /* 0x50-0x53 */
+	0xBE, 0x61, 0xBE, 0x62, 0xBE, 0x63, 0xBE, 0x64, /* 0x54-0x57 */
+	0xBE, 0x65, 0xBE, 0x66, 0xBE, 0x67, 0xBE, 0x68, /* 0x58-0x5B */
+	0xC7, 0xA5, 0xBE, 0x69, 0xBE, 0x6A, 0xBE, 0x6B, /* 0x5C-0x5F */
+	0xC7, 0xA6, 0xBE, 0x6C, 0xBE, 0x6D, 0xBE, 0x6E, /* 0x60-0x63 */
+	0xC7, 0xA7, 0xBE, 0x6F, 0xBE, 0x70, 0xBE, 0x71, /* 0x64-0x67 */
+	0xBE, 0x72, 0xBE, 0x73, 0xBE, 0x74, 0xBE, 0x75, /* 0x68-0x6B */
+	0xBE, 0x76, 0xC7, 0xA8, 0xBE, 0x77, 0xC7, 0xA9, /* 0x6C-0x6F */
+	0xBE, 0x78, 0xBE, 0x79, 0xBE, 0x7A, 0xBE, 0x81, /* 0x70-0x73 */
+	0xBE, 0x82, 0xBE, 0x83, 0xBE, 0x84, 0xBE, 0x85, /* 0x74-0x77 */
+	0xC7, 0xAA, 0xC7, 0xAB, 0xBE, 0x86, 0xBE, 0x87, /* 0x78-0x7B */
+	0xC7, 0xAC, 0xBE, 0x88, 0xBE, 0x89, 0xC7, 0xAD, /* 0x7C-0x7F */
+	
+	0xC7, 0xAE, 0xBE, 0x8A, 0xC7, 0xAF, 0xBE, 0x8B, /* 0x80-0x83 */
+	0xBE, 0x8C, 0xBE, 0x8D, 0xBE, 0x8E, 0xBE, 0x8F, /* 0x84-0x87 */
+	0xC7, 0xB0, 0xC7, 0xB1, 0xBE, 0x90, 0xC7, 0xB2, /* 0x88-0x8B */
+	0xBE, 0x91, 0xC7, 0xB3, 0xBE, 0x92, 0xBE, 0x93, /* 0x8C-0x8F */
+	0xBE, 0x94, 0xBE, 0x95, 0xBE, 0x96, 0xBE, 0x97, /* 0x90-0x93 */
+	0xC7, 0xB4, 0xBE, 0x98, 0xBE, 0x99, 0xBE, 0x9A, /* 0x94-0x97 */
+	0xBE, 0x9B, 0xBE, 0x9C, 0xBE, 0x9D, 0xBE, 0x9E, /* 0x98-0x9B */
+	0xBE, 0x9F, 0xBE, 0xA0, 0xBF, 0x41, 0xBF, 0x42, /* 0x9C-0x9F */
+	0xBF, 0x43, 0xBF, 0x44, 0xBF, 0x45, 0xBF, 0x46, /* 0xA0-0xA3 */
+	0xBF, 0x47, 0xBF, 0x48, 0xBF, 0x49, 0xBF, 0x4A, /* 0xA4-0xA7 */
+	0xBF, 0x4B, 0xC7, 0xB5, 0xBF, 0x4C, 0xBF, 0x4D, /* 0xA8-0xAB */
+	0xBF, 0x4E, 0xBF, 0x4F, 0xBF, 0x50, 0xBF, 0x51, /* 0xAC-0xAF */
+	0xBF, 0x52, 0xBF, 0x53, 0xBF, 0x54, 0xBF, 0x55, /* 0xB0-0xB3 */
+	0xBF, 0x56, 0xBF, 0x57, 0xBF, 0x58, 0xBF, 0x59, /* 0xB4-0xB7 */
+	0xBF, 0x5A, 0xBF, 0x61, 0xBF, 0x62, 0xBF, 0x63, /* 0xB8-0xBB */
+	0xBF, 0x64, 0xBF, 0x65, 0xBF, 0x66, 0xBF, 0x67, /* 0xBC-0xBF */
+	0xBF, 0x68, 0xBF, 0x69, 0xBF, 0x6A, 0xBF, 0x6B, /* 0xC0-0xC3 */
+	0xBF, 0x6C, 0xBF, 0x6D, 0xBF, 0x6E, 0xBF, 0x6F, /* 0xC4-0xC7 */
+	0xBF, 0x70, 0xBF, 0x71, 0xBF, 0x72, 0xBF, 0x73, /* 0xC8-0xCB */
+	0xC7, 0xB6, 0xBF, 0x74, 0xBF, 0x75, 0xBF, 0x76, /* 0xCC-0xCF */
+	0xC7, 0xB7, 0xBF, 0x77, 0xBF, 0x78, 0xBF, 0x79, /* 0xD0-0xD3 */
+	0xC7, 0xB8, 0xBF, 0x7A, 0xBF, 0x81, 0xBF, 0x82, /* 0xD4-0xD7 */
+	0xBF, 0x83, 0xBF, 0x84, 0xBF, 0x85, 0xBF, 0x86, /* 0xD8-0xDB */
+	0xC7, 0xB9, 0xBF, 0x87, 0xBF, 0x88, 0xC7, 0xBA, /* 0xDC-0xDF */
+	0xBF, 0x89, 0xBF, 0x8A, 0xBF, 0x8B, 0xBF, 0x8C, /* 0xE0-0xE3 */
+	0xBF, 0x8D, 0xBF, 0x8E, 0xBF, 0x8F, 0xBF, 0x90, /* 0xE4-0xE7 */
+	0xC7, 0xBB, 0xBF, 0x91, 0xBF, 0x92, 0xBF, 0x93, /* 0xE8-0xEB */
+	0xC7, 0xBC, 0xBF, 0x94, 0xBF, 0x95, 0xBF, 0x96, /* 0xEC-0xEF */
+	0xC7, 0xBD, 0xBF, 0x97, 0xBF, 0x98, 0xBF, 0x99, /* 0xF0-0xF3 */
+	0xBF, 0x9A, 0xBF, 0x9B, 0xBF, 0x9C, 0xBF, 0x9D, /* 0xF4-0xF7 */
+	0xC7, 0xBE, 0xBF, 0x9E, 0xBF, 0x9F, 0xC7, 0xBF, /* 0xF8-0xFB */
+	0xBF, 0xA0, 0xC7, 0xC0, 0xC0, 0x41, 0xC0, 0x42, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_D5[512] = {
+	0xC0, 0x43, 0xC0, 0x44, 0xC0, 0x45, 0xC0, 0x46, /* 0x00-0x03 */
+	0xC7, 0xC1, 0xC0, 0x47, 0xC0, 0x48, 0xC0, 0x49, /* 0x04-0x07 */
+	0xC7, 0xC2, 0xC0, 0x4A, 0xC0, 0x4B, 0xC0, 0x4C, /* 0x08-0x0B */
+	0xC7, 0xC3, 0xC0, 0x4D, 0xC0, 0x4E, 0xC0, 0x4F, /* 0x0C-0x0F */
+	0xC0, 0x50, 0xC0, 0x51, 0xC0, 0x52, 0xC0, 0x53, /* 0x10-0x13 */
+	0xC7, 0xC4, 0xC7, 0xC5, 0xC0, 0x54, 0xC7, 0xC6, /* 0x14-0x17 */
+	0xC0, 0x55, 0xC0, 0x56, 0xC0, 0x57, 0xC0, 0x58, /* 0x18-0x1B */
+	0xC0, 0x59, 0xC0, 0x5A, 0xC0, 0x61, 0xC0, 0x62, /* 0x1C-0x1F */
+	0xC0, 0x63, 0xC0, 0x64, 0xC0, 0x65, 0xC0, 0x66, /* 0x20-0x23 */
+	0xC0, 0x67, 0xC0, 0x68, 0xC0, 0x69, 0xC0, 0x6A, /* 0x24-0x27 */
+	0xC0, 0x6B, 0xC0, 0x6C, 0xC0, 0x6D, 0xC0, 0x6E, /* 0x28-0x2B */
+	0xC0, 0x6F, 0xC0, 0x70, 0xC0, 0x71, 0xC0, 0x72, /* 0x2C-0x2F */
+	0xC0, 0x73, 0xC0, 0x74, 0xC0, 0x75, 0xC0, 0x76, /* 0x30-0x33 */
+	0xC0, 0x77, 0xC0, 0x78, 0xC0, 0x79, 0xC0, 0x7A, /* 0x34-0x37 */
+	0xC0, 0x81, 0xC0, 0x82, 0xC0, 0x83, 0xC0, 0x84, /* 0x38-0x3B */
+	0xC7, 0xC7, 0xC7, 0xC8, 0xC0, 0x85, 0xC0, 0x86, /* 0x3C-0x3F */
+	0xC7, 0xC9, 0xC0, 0x87, 0xC0, 0x88, 0xC0, 0x89, /* 0x40-0x43 */
+	0xC7, 0xCA, 0xC0, 0x8A, 0xC0, 0x8B, 0xC0, 0x8C, /* 0x44-0x47 */
+	0xC0, 0x8D, 0xC0, 0x8E, 0xC0, 0x8F, 0xC0, 0x90, /* 0x48-0x4B */
+	0xC7, 0xCB, 0xC7, 0xCC, 0xC0, 0x91, 0xC7, 0xCD, /* 0x4C-0x4F */
+	0xC0, 0x92, 0xC7, 0xCE, 0xC0, 0x93, 0xC0, 0x94, /* 0x50-0x53 */
+	0xC0, 0x95, 0xC0, 0x96, 0xC0, 0x97, 0xC0, 0x98, /* 0x54-0x57 */
+	0xC7, 0xCF, 0xC7, 0xD0, 0xC0, 0x99, 0xC0, 0x9A, /* 0x58-0x5B */
+	0xC7, 0xD1, 0xC0, 0x9B, 0xC0, 0x9C, 0xC0, 0x9D, /* 0x5C-0x5F */
+	0xC7, 0xD2, 0xC0, 0x9E, 0xC0, 0x9F, 0xC0, 0xA0, /* 0x60-0x63 */
+	0xC1, 0x41, 0xC7, 0xD3, 0xC1, 0x42, 0xC1, 0x43, /* 0x64-0x67 */
+	0xC7, 0xD4, 0xC7, 0xD5, 0xC1, 0x44, 0xC7, 0xD6, /* 0x68-0x6B */
+	0xC1, 0x45, 0xC7, 0xD7, 0xC1, 0x46, 0xC1, 0x47, /* 0x6C-0x6F */
+	0xC1, 0x48, 0xC1, 0x49, 0xC1, 0x4A, 0xC1, 0x4B, /* 0x70-0x73 */
+	0xC7, 0xD8, 0xC7, 0xD9, 0xC1, 0x4C, 0xC1, 0x4D, /* 0x74-0x77 */
+	0xC7, 0xDA, 0xC1, 0x4E, 0xC1, 0x4F, 0xC1, 0x50, /* 0x78-0x7B */
+	0xC7, 0xDB, 0xC1, 0x51, 0xC1, 0x52, 0xC1, 0x53, /* 0x7C-0x7F */
+	
+	0xC1, 0x54, 0xC1, 0x55, 0xC1, 0x56, 0xC1, 0x57, /* 0x80-0x83 */
+	0xC7, 0xDC, 0xC7, 0xDD, 0xC1, 0x58, 0xC7, 0xDE, /* 0x84-0x87 */
+	0xC7, 0xDF, 0xC7, 0xE0, 0xC1, 0x59, 0xC1, 0x5A, /* 0x88-0x8B */
+	0xC1, 0x61, 0xC1, 0x62, 0xC1, 0x63, 0xC1, 0x64, /* 0x8C-0x8F */
+	0xC7, 0xE1, 0xC1, 0x65, 0xC1, 0x66, 0xC1, 0x67, /* 0x90-0x93 */
+	0xC1, 0x68, 0xC1, 0x69, 0xC1, 0x6A, 0xC1, 0x6B, /* 0x94-0x97 */
+	0xC1, 0x6C, 0xC1, 0x6D, 0xC1, 0x6E, 0xC1, 0x6F, /* 0x98-0x9B */
+	0xC1, 0x70, 0xC1, 0x71, 0xC1, 0x72, 0xC1, 0x73, /* 0x9C-0x9F */
+	0xC1, 0x74, 0xC1, 0x75, 0xC1, 0x76, 0xC1, 0x77, /* 0xA0-0xA3 */
+	0xC1, 0x78, 0xC7, 0xE2, 0xC1, 0x79, 0xC1, 0x7A, /* 0xA4-0xA7 */
+	0xC1, 0x81, 0xC1, 0x82, 0xC1, 0x83, 0xC1, 0x84, /* 0xA8-0xAB */
+	0xC1, 0x85, 0xC1, 0x86, 0xC1, 0x87, 0xC1, 0x88, /* 0xAC-0xAF */
+	0xC1, 0x89, 0xC1, 0x8A, 0xC1, 0x8B, 0xC1, 0x8C, /* 0xB0-0xB3 */
+	0xC1, 0x8D, 0xC1, 0x8E, 0xC1, 0x8F, 0xC1, 0x90, /* 0xB4-0xB7 */
+	0xC1, 0x91, 0xC1, 0x92, 0xC1, 0x93, 0xC1, 0x94, /* 0xB8-0xBB */
+	0xC1, 0x95, 0xC1, 0x96, 0xC1, 0x97, 0xC1, 0x98, /* 0xBC-0xBF */
+	0xC1, 0x99, 0xC1, 0x9A, 0xC1, 0x9B, 0xC1, 0x9C, /* 0xC0-0xC3 */
+	0xC1, 0x9D, 0xC1, 0x9E, 0xC1, 0x9F, 0xC1, 0xA0, /* 0xC4-0xC7 */
+	0xC7, 0xE3, 0xC7, 0xE4, 0xC2, 0x41, 0xC2, 0x42, /* 0xC8-0xCB */
+	0xC7, 0xE5, 0xC2, 0x43, 0xC2, 0x44, 0xC2, 0x45, /* 0xCC-0xCF */
+	0xC7, 0xE6, 0xC2, 0x46, 0xC7, 0xE7, 0xC2, 0x47, /* 0xD0-0xD3 */
+	0xC2, 0x48, 0xC2, 0x49, 0xC2, 0x4A, 0xC2, 0x4B, /* 0xD4-0xD7 */
+	0xC7, 0xE8, 0xC7, 0xE9, 0xC2, 0x4C, 0xC7, 0xEA, /* 0xD8-0xDB */
+	0xC2, 0x4D, 0xC7, 0xEB, 0xC2, 0x4E, 0xC2, 0x4F, /* 0xDC-0xDF */
+	0xC2, 0x50, 0xC2, 0x51, 0xC2, 0x52, 0xC2, 0x53, /* 0xE0-0xE3 */
+	0xC7, 0xEC, 0xC7, 0xED, 0xC2, 0x54, 0xC2, 0x55, /* 0xE4-0xE7 */
+	0xC7, 0xEE, 0xC2, 0x56, 0xC2, 0x57, 0xC2, 0x58, /* 0xE8-0xEB */
+	0xC7, 0xEF, 0xC2, 0x59, 0xC2, 0x5A, 0xC2, 0x61, /* 0xEC-0xEF */
+	0xC2, 0x62, 0xC2, 0x63, 0xC2, 0x64, 0xC2, 0x65, /* 0xF0-0xF3 */
+	0xC7, 0xF0, 0xC7, 0xF1, 0xC2, 0x66, 0xC7, 0xF2, /* 0xF4-0xF7 */
+	0xC2, 0x67, 0xC7, 0xF3, 0xC2, 0x68, 0xC2, 0x69, /* 0xF8-0xFB */
+	0xC2, 0x6A, 0xC2, 0x6B, 0xC2, 0x6C, 0xC2, 0x6D, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_D6[512] = {
+	0xC7, 0xF4, 0xC7, 0xF5, 0xC2, 0x6E, 0xC2, 0x6F, /* 0x00-0x03 */
+	0xC7, 0xF6, 0xC2, 0x70, 0xC2, 0x71, 0xC2, 0x72, /* 0x04-0x07 */
+	0xC7, 0xF7, 0xC2, 0x73, 0xC2, 0x74, 0xC2, 0x75, /* 0x08-0x0B */
+	0xC2, 0x76, 0xC2, 0x77, 0xC2, 0x78, 0xC2, 0x79, /* 0x0C-0x0F */
+	0xC7, 0xF8, 0xC7, 0xF9, 0xC2, 0x7A, 0xC7, 0xFA, /* 0x10-0x13 */
+	0xC7, 0xFB, 0xC7, 0xFC, 0xC2, 0x81, 0xC2, 0x82, /* 0x14-0x17 */
+	0xC2, 0x83, 0xC2, 0x84, 0xC2, 0x85, 0xC2, 0x86, /* 0x18-0x1B */
+	0xC7, 0xFD, 0xC2, 0x87, 0xC2, 0x88, 0xC2, 0x89, /* 0x1C-0x1F */
+	0xC7, 0xFE, 0xC2, 0x8A, 0xC2, 0x8B, 0xC2, 0x8C, /* 0x20-0x23 */
+	0xC8, 0xA1, 0xC2, 0x8D, 0xC2, 0x8E, 0xC2, 0x8F, /* 0x24-0x27 */
+	0xC2, 0x90, 0xC2, 0x91, 0xC2, 0x92, 0xC2, 0x93, /* 0x28-0x2B */
+	0xC2, 0x94, 0xC8, 0xA2, 0xC2, 0x95, 0xC2, 0x96, /* 0x2C-0x2F */
+	0xC2, 0x97, 0xC2, 0x98, 0xC2, 0x99, 0xC2, 0x9A, /* 0x30-0x33 */
+	0xC2, 0x9B, 0xC2, 0x9C, 0xC2, 0x9D, 0xC2, 0x9E, /* 0x34-0x37 */
+	0xC8, 0xA3, 0xC8, 0xA4, 0xC2, 0x9F, 0xC2, 0xA0, /* 0x38-0x3B */
+	0xC8, 0xA5, 0xC3, 0x41, 0xC3, 0x42, 0xC3, 0x43, /* 0x3C-0x3F */
+	0xC8, 0xA6, 0xC3, 0x44, 0xC3, 0x45, 0xC3, 0x46, /* 0x40-0x43 */
+	0xC3, 0x47, 0xC8, 0xA7, 0xC3, 0x48, 0xC3, 0x49, /* 0x44-0x47 */
+	0xC8, 0xA8, 0xC8, 0xA9, 0xC3, 0x4A, 0xC8, 0xAA, /* 0x48-0x4B */
+	0xC3, 0x4B, 0xC8, 0xAB, 0xC3, 0x4C, 0xC3, 0x4D, /* 0x4C-0x4F */
+	0xC3, 0x4E, 0xC8, 0xAC, 0xC3, 0x4F, 0xC3, 0x50, /* 0x50-0x53 */
+	0xC8, 0xAD, 0xC8, 0xAE, 0xC3, 0x51, 0xC3, 0x52, /* 0x54-0x57 */
+	0xC8, 0xAF, 0xC3, 0x53, 0xC3, 0x54, 0xC3, 0x55, /* 0x58-0x5B */
+	0xC8, 0xB0, 0xC3, 0x56, 0xC3, 0x57, 0xC3, 0x58, /* 0x5C-0x5F */
+	0xC3, 0x59, 0xC3, 0x5A, 0xC3, 0x61, 0xC3, 0x62, /* 0x60-0x63 */
+	0xC3, 0x63, 0xC3, 0x64, 0xC3, 0x65, 0xC8, 0xB1, /* 0x64-0x67 */
+	0xC3, 0x66, 0xC8, 0xB2, 0xC3, 0x67, 0xC3, 0x68, /* 0x68-0x6B */
+	0xC3, 0x69, 0xC3, 0x6A, 0xC3, 0x6B, 0xC3, 0x6C, /* 0x6C-0x6F */
+	0xC8, 0xB3, 0xC8, 0xB4, 0xC3, 0x6D, 0xC3, 0x6E, /* 0x70-0x73 */
+	0xC8, 0xB5, 0xC3, 0x6F, 0xC3, 0x70, 0xC3, 0x71, /* 0x74-0x77 */
+	0xC3, 0x72, 0xC3, 0x73, 0xC3, 0x74, 0xC3, 0x75, /* 0x78-0x7B */
+	0xC3, 0x76, 0xC3, 0x77, 0xC3, 0x78, 0xC3, 0x79, /* 0x7C-0x7F */
+	
+	0xC3, 0x7A, 0xC3, 0x81, 0xC3, 0x82, 0xC8, 0xB6, /* 0x80-0x83 */
+	0xC3, 0x83, 0xC8, 0xB7, 0xC3, 0x84, 0xC3, 0x85, /* 0x84-0x87 */
+	0xC3, 0x86, 0xC3, 0x87, 0xC3, 0x88, 0xC3, 0x89, /* 0x88-0x8B */
+	0xC8, 0xB8, 0xC8, 0xB9, 0xC3, 0x8A, 0xC3, 0x8B, /* 0x8C-0x8F */
+	0xC8, 0xBA, 0xC3, 0x8C, 0xC3, 0x8D, 0xC3, 0x8E, /* 0x90-0x93 */
+	0xC8, 0xBB, 0xC3, 0x8F, 0xC3, 0x90, 0xC3, 0x91, /* 0x94-0x97 */
+	0xC3, 0x92, 0xC3, 0x93, 0xC3, 0x94, 0xC3, 0x95, /* 0x98-0x9B */
+	0xC3, 0x96, 0xC8, 0xBC, 0xC3, 0x97, 0xC8, 0xBD, /* 0x9C-0x9F */
+	0xC3, 0x98, 0xC8, 0xBE, 0xC3, 0x99, 0xC3, 0x9A, /* 0xA0-0xA3 */
+	0xC3, 0x9B, 0xC3, 0x9C, 0xC3, 0x9D, 0xC3, 0x9E, /* 0xA4-0xA7 */
+	0xC8, 0xBF, 0xC3, 0x9F, 0xC3, 0xA0, 0xC4, 0x41, /* 0xA8-0xAB */
+	0xC8, 0xC0, 0xC4, 0x42, 0xC4, 0x43, 0xC4, 0x44, /* 0xAC-0xAF */
+	0xC8, 0xC1, 0xC4, 0x45, 0xC4, 0x46, 0xC4, 0x47, /* 0xB0-0xB3 */
+	0xC4, 0x48, 0xC4, 0x49, 0xC4, 0x4A, 0xC4, 0x4B, /* 0xB4-0xB7 */
+	0xC4, 0x4C, 0xC8, 0xC2, 0xC4, 0x4D, 0xC8, 0xC3, /* 0xB8-0xBB */
+	0xC4, 0x4E, 0xC4, 0x4F, 0xC4, 0x50, 0xC4, 0x51, /* 0xBC-0xBF */
+	0xC4, 0x52, 0xC4, 0x53, 0xC4, 0x54, 0xC4, 0x55, /* 0xC0-0xC3 */
+	0xC8, 0xC4, 0xC8, 0xC5, 0xC4, 0x56, 0xC4, 0x57, /* 0xC4-0xC7 */
+	0xC8, 0xC6, 0xC4, 0x58, 0xC4, 0x59, 0xC4, 0x5A, /* 0xC8-0xCB */
+	0xC8, 0xC7, 0xC4, 0x61, 0xC4, 0x62, 0xC4, 0x63, /* 0xCC-0xCF */
+	0xC4, 0x64, 0xC8, 0xC8, 0xC4, 0x65, 0xC4, 0x66, /* 0xD0-0xD3 */
+	0xC8, 0xC9, 0xC4, 0x67, 0xC4, 0x68, 0xC8, 0xCA, /* 0xD4-0xD7 */
+	0xC4, 0x69, 0xC8, 0xCB, 0xC4, 0x6A, 0xC4, 0x6B, /* 0xD8-0xDB */
+	0xC4, 0x6C, 0xC4, 0x6D, 0xC4, 0x6E, 0xC4, 0x6F, /* 0xDC-0xDF */
+	0xC8, 0xCC, 0xC4, 0x70, 0xC4, 0x71, 0xC4, 0x72, /* 0xE0-0xE3 */
+	0xC8, 0xCD, 0xC4, 0x73, 0xC4, 0x74, 0xC4, 0x75, /* 0xE4-0xE7 */
+	0xC8, 0xCE, 0xC4, 0x76, 0xC4, 0x77, 0xC4, 0x78, /* 0xE8-0xEB */
+	0xC4, 0x79, 0xC4, 0x7A, 0xC4, 0x81, 0xC4, 0x82, /* 0xEC-0xEF */
+	0xC8, 0xCF, 0xC4, 0x83, 0xC4, 0x84, 0xC4, 0x85, /* 0xF0-0xF3 */
+	0xC4, 0x86, 0xC8, 0xD0, 0xC4, 0x87, 0xC4, 0x88, /* 0xF4-0xF7 */
+	0xC4, 0x89, 0xC4, 0x8A, 0xC4, 0x8B, 0xC4, 0x8C, /* 0xF8-0xFB */
+	0xC8, 0xD1, 0xC8, 0xD2, 0xC4, 0x8D, 0xC4, 0x8E, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_D7[512] = {
+	0xC8, 0xD3, 0xC4, 0x8F, 0xC4, 0x90, 0xC4, 0x91, /* 0x00-0x03 */
+	0xC8, 0xD4, 0xC4, 0x92, 0xC4, 0x93, 0xC4, 0x94, /* 0x04-0x07 */
+	0xC4, 0x95, 0xC4, 0x96, 0xC4, 0x97, 0xC4, 0x98, /* 0x08-0x0B */
+	0xC4, 0x99, 0xC4, 0x9A, 0xC4, 0x9B, 0xC4, 0x9C, /* 0x0C-0x0F */
+	0xC4, 0x9D, 0xC8, 0xD5, 0xC4, 0x9E, 0xC4, 0x9F, /* 0x10-0x13 */
+	0xC4, 0xA0, 0xC5, 0x41, 0xC5, 0x42, 0xC5, 0x43, /* 0x14-0x17 */
+	0xC8, 0xD6, 0xC8, 0xD7, 0xC5, 0x44, 0xC5, 0x45, /* 0x18-0x1B */
+	0xC8, 0xD8, 0xC5, 0x46, 0xC5, 0x47, 0xC5, 0x48, /* 0x1C-0x1F */
+	0xC8, 0xD9, 0xC5, 0x49, 0xC5, 0x4A, 0xC5, 0x4B, /* 0x20-0x23 */
+	0xC5, 0x4C, 0xC5, 0x4D, 0xC5, 0x4E, 0xC5, 0x4F, /* 0x24-0x27 */
+	0xC8, 0xDA, 0xC8, 0xDB, 0xC5, 0x50, 0xC8, 0xDC, /* 0x28-0x2B */
+	0xC5, 0x51, 0xC8, 0xDD, 0xC5, 0x52, 0xC5, 0x53, /* 0x2C-0x2F */
+	0xC5, 0x54, 0xC5, 0x55, 0xC5, 0x56, 0xC5, 0x57, /* 0x30-0x33 */
+	0xC8, 0xDE, 0xC8, 0xDF, 0xC5, 0x58, 0xC5, 0x59, /* 0x34-0x37 */
+	0xC8, 0xE0, 0xC5, 0x5A, 0xC5, 0x61, 0xC5, 0x62, /* 0x38-0x3B */
+	0xC8, 0xE1, 0xC5, 0x63, 0xC5, 0x64, 0xC5, 0x65, /* 0x3C-0x3F */
+	0xC5, 0x66, 0xC5, 0x67, 0xC5, 0x68, 0xC5, 0x69, /* 0x40-0x43 */
+	0xC8, 0xE2, 0xC5, 0x6A, 0xC5, 0x6B, 0xC8, 0xE3, /* 0x44-0x47 */
+	0xC5, 0x6C, 0xC8, 0xE4, 0xC5, 0x6D, 0xC5, 0x6E, /* 0x48-0x4B */
+	0xC5, 0x6F, 0xC5, 0x70, 0xC5, 0x71, 0xC5, 0x72, /* 0x4C-0x4F */
+	0xC8, 0xE5, 0xC8, 0xE6, 0xC5, 0x73, 0xC5, 0x74, /* 0x50-0x53 */
+	0xC8, 0xE7, 0xC5, 0x75, 0xC8, 0xE8, 0xC8, 0xE9, /* 0x54-0x57 */
+	0xC8, 0xEA, 0xC8, 0xEB, 0xC5, 0x76, 0xC5, 0x77, /* 0x58-0x5B */
+	0xC5, 0x78, 0xC5, 0x79, 0xC5, 0x7A, 0xC5, 0x81, /* 0x5C-0x5F */
+	0xC8, 0xEC, 0xC8, 0xED, 0xC5, 0x82, 0xC8, 0xEE, /* 0x60-0x63 */
+	0xC5, 0x83, 0xC8, 0xEF, 0xC5, 0x84, 0xC5, 0x85, /* 0x64-0x67 */
+	0xC5, 0x86, 0xC8, 0xF0, 0xC5, 0x87, 0xC5, 0x88, /* 0x68-0x6B */
+	0xC8, 0xF1, 0xC5, 0x89, 0xC5, 0x8A, 0xC5, 0x8B, /* 0x6C-0x6F */
+	0xC8, 0xF2, 0xC5, 0x8C, 0xC5, 0x8D, 0xC5, 0x8E, /* 0x70-0x73 */
+	0xC8, 0xF3, 0xC5, 0x8F, 0xC5, 0x90, 0xC5, 0x91, /* 0x74-0x77 */
+	0xC5, 0x92, 0xC5, 0x93, 0xC5, 0x94, 0xC5, 0x95, /* 0x78-0x7B */
+	0xC8, 0xF4, 0xC8, 0xF5, 0xC5, 0x96, 0xC5, 0x97, /* 0x7C-0x7F */
+	
+	0xC5, 0x98, 0xC8, 0xF6, 0xC5, 0x99, 0xC5, 0x9A, /* 0x80-0x83 */
+	0xC5, 0x9B, 0xC5, 0x9C, 0xC5, 0x9D, 0xC5, 0x9E, /* 0x84-0x87 */
+	0xC8, 0xF7, 0xC8, 0xF8, 0xC5, 0x9F, 0xC5, 0xA0, /* 0x88-0x8B */
+	0xC8, 0xF9, 0xC6, 0x41, 0xC6, 0x42, 0xC6, 0x43, /* 0x8C-0x8F */
+	0xC8, 0xFA, 0xC6, 0x44, 0xC6, 0x45, 0xC6, 0x46, /* 0x90-0x93 */
+	0xC6, 0x47, 0xC6, 0x48, 0xC6, 0x49, 0xC6, 0x4A, /* 0x94-0x97 */
+	0xC8, 0xFB, 0xC8, 0xFC, 0xC6, 0x4B, 0xC8, 0xFD, /* 0x98-0x9B */
+	0xC6, 0x4C, 0xC8, 0xFE, 0xC6, 0x4D, 0xC6, 0x4E, /* 0x9C-0x9F */
+	0xC6, 0x4F, 0xC6, 0x50, 0xC6, 0x51, 0xC6, 0x52, /* 0xA0-0xA3 */
+};
+
+static unsigned char u2c_DC[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+};
+
+static unsigned char u2c_F9[512] = {
+	0xCB, 0xD0, 0xCB, 0xD6, 0xCB, 0xE7, 0xCD, 0xCF, /* 0x00-0x03 */
+	0xCD, 0xE8, 0xCE, 0xAD, 0xCF, 0xFB, 0xD0, 0xA2, /* 0x04-0x07 */
+	0xD0, 0xB8, 0xD0, 0xD0, 0xD0, 0xDD, 0xD1, 0xD4, /* 0x08-0x0B */
+	0xD1, 0xD5, 0xD1, 0xD8, 0xD1, 0xDB, 0xD1, 0xDC, /* 0x0C-0x0F */
+	0xD1, 0xDD, 0xD1, 0xDE, 0xD1, 0xDF, 0xD1, 0xE0, /* 0x10-0x13 */
+	0xD1, 0xE2, 0xD1, 0xE3, 0xD1, 0xE4, 0xD1, 0xE5, /* 0x14-0x17 */
+	0xD1, 0xE6, 0xD1, 0xE8, 0xD1, 0xE9, 0xD1, 0xEA, /* 0x18-0x1B */
+	0xD1, 0xEB, 0xD1, 0xED, 0xD1, 0xEF, 0xD1, 0xF0, /* 0x1C-0x1F */
+	0xD1, 0xF2, 0xD1, 0xF6, 0xD1, 0xFA, 0xD1, 0xFC, /* 0x20-0x23 */
+	0xD1, 0xFD, 0xD1, 0xFE, 0xD2, 0xA2, 0xD2, 0xA3, /* 0x24-0x27 */
+	0xD2, 0xA7, 0xD2, 0xA8, 0xD2, 0xA9, 0xD2, 0xAA, /* 0x28-0x2B */
+	0xD2, 0xAB, 0xD2, 0xAD, 0xD2, 0xB2, 0xD2, 0xBE, /* 0x2C-0x2F */
+	0xD2, 0xC2, 0xD2, 0xC3, 0xD2, 0xC4, 0xD2, 0xC6, /* 0x30-0x33 */
+	0xD2, 0xC7, 0xD2, 0xC8, 0xD2, 0xC9, 0xD2, 0xCA, /* 0x34-0x37 */
+	0xD2, 0xCB, 0xD2, 0xCD, 0xD2, 0xCE, 0xD2, 0xCF, /* 0x38-0x3B */
+	0xD2, 0xD0, 0xD2, 0xD1, 0xD2, 0xD2, 0xD2, 0xD3, /* 0x3C-0x3F */
+	0xD2, 0xD4, 0xD2, 0xD5, 0xD2, 0xD6, 0xD2, 0xD7, /* 0x40-0x43 */
+	0xD2, 0xD9, 0xD2, 0xDA, 0xD2, 0xDE, 0xD2, 0xDF, /* 0x44-0x47 */
+	0xD2, 0xE1, 0xD2, 0xE2, 0xD2, 0xE4, 0xD2, 0xE5, /* 0x48-0x4B */
+	0xD2, 0xE6, 0xD2, 0xE7, 0xD2, 0xE8, 0xD2, 0xE9, /* 0x4C-0x4F */
+	0xD2, 0xEA, 0xD2, 0xEB, 0xD2, 0xF0, 0xD2, 0xF1, /* 0x50-0x53 */
+	0xD2, 0xF2, 0xD2, 0xF3, 0xD2, 0xF4, 0xD2, 0xF5, /* 0x54-0x57 */
+	0xD2, 0xF7, 0xD2, 0xF8, 0xD4, 0xE6, 0xD4, 0xFC, /* 0x58-0x5B */
+	0xD5, 0xA5, 0xD5, 0xAB, 0xD5, 0xAE, 0xD6, 0xB8, /* 0x5C-0x5F */
+	0xD6, 0xCD, 0xD7, 0xCB, 0xD7, 0xE4, 0xDB, 0xC5, /* 0x60-0x63 */
+	0xDB, 0xE4, 0xDC, 0xA5, 0xDD, 0xA5, 0xDD, 0xD5, /* 0x64-0x67 */
+	0xDD, 0xF4, 0xDE, 0xFC, 0xDE, 0xFE, 0xDF, 0xB3, /* 0x68-0x6B */
+	0xDF, 0xE1, 0xDF, 0xE8, 0xE0, 0xF1, 0xE1, 0xAD, /* 0x6C-0x6F */
+	0xE1, 0xED, 0xE3, 0xF5, 0xE4, 0xA1, 0xE4, 0xA9, /* 0x70-0x73 */
+	0xE5, 0xAE, 0xE5, 0xB1, 0xE5, 0xB2, 0xE5, 0xB9, /* 0x74-0x77 */
+	0xE5, 0xBB, 0xE5, 0xBC, 0xE5, 0xC4, 0xE5, 0xCE, /* 0x78-0x7B */
+	0xE5, 0xD0, 0xE5, 0xD2, 0xE5, 0xD6, 0xE5, 0xFA, /* 0x7C-0x7F */
+	
+	0xE5, 0xFB, 0xE5, 0xFC, 0xE5, 0xFE, 0xE6, 0xA1, /* 0x80-0x83 */
+	0xE6, 0xA4, 0xE6, 0xA7, 0xE6, 0xAD, 0xE6, 0xAF, /* 0x84-0x87 */
+	0xE6, 0xB0, 0xE6, 0xB1, 0xE6, 0xB3, 0xE6, 0xB7, /* 0x88-0x8B */
+	0xE6, 0xB8, 0xE6, 0xBC, 0xE6, 0xC4, 0xE6, 0xC6, /* 0x8C-0x8F */
+	0xE6, 0xC7, 0xE6, 0xCA, 0xE6, 0xD2, 0xE6, 0xD6, /* 0x90-0x93 */
+	0xE6, 0xD9, 0xE6, 0xDC, 0xE6, 0xDF, 0xE6, 0xE1, /* 0x94-0x97 */
+	0xE6, 0xE4, 0xE6, 0xE5, 0xE6, 0xE6, 0xE6, 0xE8, /* 0x98-0x9B */
+	0xE6, 0xEA, 0xE6, 0xEB, 0xE6, 0xEC, 0xE6, 0xEF, /* 0x9C-0x9F */
+	0xE6, 0xF1, 0xE6, 0xF2, 0xE6, 0xF5, 0xE6, 0xF6, /* 0xA0-0xA3 */
+	0xE6, 0xF7, 0xE6, 0xF9, 0xE7, 0xA1, 0xE7, 0xA6, /* 0xA4-0xA7 */
+	0xE7, 0xA9, 0xE7, 0xAA, 0xE7, 0xAC, 0xE7, 0xAD, /* 0xA8-0xAB */
+	0xE7, 0xB0, 0xE7, 0xBF, 0xE7, 0xC1, 0xE7, 0xC6, /* 0xAC-0xAF */
+	0xE7, 0xC7, 0xE7, 0xCB, 0xE7, 0xCD, 0xE7, 0xCF, /* 0xB0-0xB3 */
+	0xE7, 0xD0, 0xE7, 0xD3, 0xE7, 0xDF, 0xE7, 0xE4, /* 0xB4-0xB7 */
+	0xE7, 0xE6, 0xE7, 0xF7, 0xE8, 0xE7, 0xE8, 0xE8, /* 0xB8-0xBB */
+	0xE8, 0xF0, 0xE8, 0xF1, 0xE8, 0xF7, 0xE8, 0xF9, /* 0xBC-0xBF */
+	0xE8, 0xFB, 0xE8, 0xFE, 0xE9, 0xA7, 0xE9, 0xAC, /* 0xC0-0xC3 */
+	0xE9, 0xCC, 0xE9, 0xF7, 0xEA, 0xC1, 0xEA, 0xE5, /* 0xC4-0xC7 */
+	0xEA, 0xF4, 0xEA, 0xF7, 0xEA, 0xFC, 0xEA, 0xFE, /* 0xC8-0xCB */
+	0xEB, 0xA4, 0xEB, 0xA7, 0xEB, 0xA9, 0xEB, 0xAA, /* 0xCC-0xCF */
+	0xEB, 0xBA, 0xEB, 0xBB, 0xEB, 0xBD, 0xEB, 0xC1, /* 0xD0-0xD3 */
+	0xEB, 0xC2, 0xEB, 0xC6, 0xEB, 0xC7, 0xEB, 0xCC, /* 0xD4-0xD7 */
+	0xEB, 0xCF, 0xEB, 0xD0, 0xEB, 0xD1, 0xEB, 0xD2, /* 0xD8-0xDB */
+	0xEB, 0xD8, 0xEC, 0xA6, 0xEC, 0xA7, 0xEC, 0xAA, /* 0xDC-0xDF */
+	0xEC, 0xAF, 0xEC, 0xB0, 0xEC, 0xB1, 0xEC, 0xB2, /* 0xE0-0xE3 */
+	0xEC, 0xB5, 0xEC, 0xB8, 0xEC, 0xBA, 0xEC, 0xC0, /* 0xE4-0xE7 */
+	0xEC, 0xC1, 0xEC, 0xC5, 0xEC, 0xC6, 0xEC, 0xC9, /* 0xE8-0xEB */
+	0xEC, 0xCA, 0xEC, 0xD5, 0xEC, 0xDD, 0xEC, 0xDE, /* 0xEC-0xEF */
+	0xEC, 0xE1, 0xEC, 0xE4, 0xEC, 0xE7, 0xEC, 0xE8, /* 0xF0-0xF3 */
+	0xEC, 0xF7, 0xEC, 0xF8, 0xEC, 0xFA, 0xED, 0xA1, /* 0xF4-0xF7 */
+	0xED, 0xA2, 0xED, 0xA3, 0xED, 0xEE, 0xEE, 0xDB, /* 0xF8-0xFB */
+	0xF2, 0xBD, 0xF2, 0xFA, 0xF3, 0xB1, 0xF4, 0xA7, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_FA[512] = {
+	0xF4, 0xEE, 0xF6, 0xF4, 0xF6, 0xF6, 0xF7, 0xB8, /* 0x00-0x03 */
+	0xF7, 0xC8, 0xF7, 0xD3, 0xF8, 0xDB, 0xF8, 0xF0, /* 0x04-0x07 */
+	0xFA, 0xA1, 0xFA, 0xA2, 0xFA, 0xE6, 0xFC, 0xA9, /* 0x08-0x0B */
+	0xE8, 0xB4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0xF5, 0xC0, 0x00, 0x00, 0xF4, 0xE7, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0xFD, 0xEB, 0x00, 0x00, 0xEC, 0xCC, /* 0x14-0x17 */
+	0x00, 0x00, 0xE3, 0xEA, 0xDF, 0xD4, 0xDC, 0xD8, /* 0x18-0x1B */
+	0xEF, 0xFE, 0xEF, 0xF1, 0xE9, 0xE2, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0xF0, 0xB3, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0xEC, 0xEF, 0xD4, 0xB4, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xDA, 0xF9, 0xDE, 0xF8, /* 0x28-0x2B */
+	0xCE, 0xBD, 0xF9, 0xCD, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+};
+
+static unsigned char u2c_FF[512] = {
+	0x00, 0x00, 0xA3, 0xA1, 0xA3, 0xA2, 0xA3, 0xA3, /* 0x00-0x03 */
+	0xA3, 0xA4, 0xA3, 0xA5, 0xA3, 0xA6, 0xA3, 0xA7, /* 0x04-0x07 */
+	0xA3, 0xA8, 0xA3, 0xA9, 0xA3, 0xAA, 0xA3, 0xAB, /* 0x08-0x0B */
+	0xA3, 0xAC, 0xA3, 0xAD, 0xA3, 0xAE, 0xA3, 0xAF, /* 0x0C-0x0F */
+	0xA3, 0xB0, 0xA3, 0xB1, 0xA3, 0xB2, 0xA3, 0xB3, /* 0x10-0x13 */
+	0xA3, 0xB4, 0xA3, 0xB5, 0xA3, 0xB6, 0xA3, 0xB7, /* 0x14-0x17 */
+	0xA3, 0xB8, 0xA3, 0xB9, 0xA3, 0xBA, 0xA3, 0xBB, /* 0x18-0x1B */
+	0xA3, 0xBC, 0xA3, 0xBD, 0xA3, 0xBE, 0xA3, 0xBF, /* 0x1C-0x1F */
+	0xA3, 0xC0, 0xA3, 0xC1, 0xA3, 0xC2, 0xA3, 0xC3, /* 0x20-0x23 */
+	0xA3, 0xC4, 0xA3, 0xC5, 0xA3, 0xC6, 0xA3, 0xC7, /* 0x24-0x27 */
+	0xA3, 0xC8, 0xA3, 0xC9, 0xA3, 0xCA, 0xA3, 0xCB, /* 0x28-0x2B */
+	0xA3, 0xCC, 0xA3, 0xCD, 0xA3, 0xCE, 0xA3, 0xCF, /* 0x2C-0x2F */
+	0xA3, 0xD0, 0xA3, 0xD1, 0xA3, 0xD2, 0xA3, 0xD3, /* 0x30-0x33 */
+	0xA3, 0xD4, 0xA3, 0xD5, 0xA3, 0xD6, 0xA3, 0xD7, /* 0x34-0x37 */
+	0xA3, 0xD8, 0xA3, 0xD9, 0xA3, 0xDA, 0xA3, 0xDB, /* 0x38-0x3B */
+	0xA1, 0xAC, 0xA3, 0xDD, 0xA3, 0xDE, 0xA3, 0xDF, /* 0x3C-0x3F */
+	0xA3, 0xE0, 0xA3, 0xE1, 0xA3, 0xE2, 0xA3, 0xE3, /* 0x40-0x43 */
+	0xA3, 0xE4, 0xA3, 0xE5, 0xA3, 0xE6, 0xA3, 0xE7, /* 0x44-0x47 */
+	0xA3, 0xE8, 0xA3, 0xE9, 0xA3, 0xEA, 0xA3, 0xEB, /* 0x48-0x4B */
+	0xA3, 0xEC, 0xA3, 0xED, 0xA3, 0xEE, 0xA3, 0xEF, /* 0x4C-0x4F */
+	0xA3, 0xF0, 0xA3, 0xF1, 0xA3, 0xF2, 0xA3, 0xF3, /* 0x50-0x53 */
+	0xA3, 0xF4, 0xA3, 0xF5, 0xA3, 0xF6, 0xA3, 0xF7, /* 0x54-0x57 */
+	0xA3, 0xF8, 0xA3, 0xF9, 0xA3, 0xFA, 0xA3, 0xFB, /* 0x58-0x5B */
+	0xA3, 0xFC, 0xA3, 0xFD, 0xA2, 0xA6, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0xA4, 0xD4, 0xA4, 0xA1, 0xA4, 0xA2, 0xA4, 0xA3, /* 0xA0-0xA3 */
+	0xA4, 0xA4, 0xA4, 0xA5, 0xA4, 0xA6, 0xA4, 0xA7, /* 0xA4-0xA7 */
+	0xA4, 0xA8, 0xA4, 0xA9, 0xA4, 0xAA, 0xA4, 0xAB, /* 0xA8-0xAB */
+	0xA4, 0xAC, 0xA4, 0xAD, 0xA4, 0xAE, 0xA4, 0xAF, /* 0xAC-0xAF */
+	0xA4, 0xB0, 0xA4, 0xB1, 0xA4, 0xB2, 0xA4, 0xB3, /* 0xB0-0xB3 */
+	0xA4, 0xB4, 0xA4, 0xB5, 0xA4, 0xB6, 0xA4, 0xB7, /* 0xB4-0xB7 */
+	0xA4, 0xB8, 0xA4, 0xB9, 0xA4, 0xBA, 0xA4, 0xBB, /* 0xB8-0xBB */
+	0xA4, 0xBC, 0xA4, 0xBD, 0xA4, 0xBE, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0xA4, 0xBF, 0xA4, 0xC0, /* 0xC0-0xC3 */
+	0xA4, 0xC1, 0xA4, 0xC2, 0xA4, 0xC3, 0xA4, 0xC4, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0xA4, 0xC5, 0xA4, 0xC6, /* 0xC8-0xCB */
+	0xA4, 0xC7, 0xA4, 0xC8, 0xA4, 0xC9, 0xA4, 0xCA, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0xA4, 0xCB, 0xA4, 0xCC, /* 0xD0-0xD3 */
+	0xA4, 0xCD, 0xA4, 0xCE, 0xA4, 0xCF, 0xA4, 0xD0, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0xA4, 0xD1, 0xA4, 0xD2, /* 0xD8-0xDB */
+	0xA4, 0xD3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0xA1, 0xCB, 0xA1, 0xCC, 0xA1, 0xFE, 0xA3, 0xFE, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xA1, 0xCD, 0xA3, 0xDC, 0x00, 0x00, /* 0xE4-0xE7 */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	NULL,   u2c_01, u2c_02, u2c_03, u2c_04, NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   u2c_11, NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	u2c_20, u2c_21, u2c_22, u2c_23, u2c_24, u2c_25, u2c_26, NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	u2c_30, u2c_31, u2c_32, u2c_33, NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   u2c_4E, u2c_4F, 
+	u2c_50, u2c_51, u2c_52, u2c_53, u2c_54, u2c_55, u2c_56, u2c_57, 
+	u2c_58, u2c_59, u2c_5A, u2c_5B, u2c_5C, u2c_5D, u2c_5E, u2c_5F, 
+	u2c_60, u2c_61, u2c_62, u2c_63, u2c_64, u2c_65, u2c_66, u2c_67, 
+	u2c_68, u2c_69, u2c_6A, u2c_6B, u2c_6C, u2c_6D, u2c_6E, u2c_6F, 
+	u2c_70, u2c_71, u2c_72, u2c_73, u2c_74, u2c_75, u2c_76, u2c_77, 
+	u2c_78, u2c_79, u2c_7A, u2c_7B, u2c_7C, u2c_7D, u2c_7E, u2c_7F, 
+	u2c_80, u2c_81, u2c_82, u2c_83, u2c_84, u2c_85, u2c_86, u2c_87, 
+	u2c_88, u2c_89, u2c_8A, u2c_8B, u2c_8C, u2c_8D, u2c_8E, u2c_8F, 
+	u2c_90, u2c_91, u2c_92, u2c_93, u2c_94, u2c_95, u2c_96, u2c_97, 
+	u2c_98, u2c_99, u2c_9A, u2c_9B, u2c_9C, u2c_9D, u2c_9E, u2c_9F, 
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   u2c_AC, u2c_AD, u2c_AE, u2c_AF, 
+	u2c_B0, u2c_B1, u2c_B2, u2c_B3, u2c_B4, u2c_B5, u2c_B6, u2c_B7, 
+	u2c_B8, u2c_B9, u2c_BA, u2c_BB, u2c_BC, u2c_BD, u2c_BE, u2c_BF, 
+	u2c_C0, u2c_C1, u2c_C2, u2c_C3, u2c_C4, u2c_C5, u2c_C6, u2c_C7, 
+	u2c_C8, u2c_C9, u2c_CA, u2c_CB, u2c_CC, u2c_CD, u2c_CE, u2c_CF, 
+	u2c_D0, u2c_D1, u2c_D2, u2c_D3, u2c_D4, u2c_D5, u2c_D6, u2c_D7, 
+	NULL,   NULL,   NULL,   NULL,   u2c_DC, NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   u2c_F9, u2c_FA, NULL,   NULL,   NULL,   NULL,   u2c_FF, };
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(const wchar_t uni,
+			unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni&0xFF;
+	unsigned char ch = (uni>>8)&0xFF;
+	int n;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset) {
+		if (boundlen <= 1)
+			return -ENAMETOOLONG;
+		out[0] = uni2charset[cl*2];
+		out[1] = uni2charset[cl*2+1];
+		if (out[0] == 0x00 && out[1] == 0x00)
+			return -EINVAL;
+		n = 2;
+	} else if (ch==0 && cl) {
+		out[0] = cl;
+		n = 1;
+	}
+	else
+		return -EINVAL;
+
+	return n;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen,
+			wchar_t *uni)
+{
+	unsigned char ch, cl;
+	wchar_t *charset2uni;
+	int n;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	if (boundlen == 1) {
+		*uni = rawstring[0];
+		return 1;
+	}
+
+	ch = rawstring[0];
+	cl = rawstring[1];
+
+	charset2uni = page_charset2uni[ch];
+	if (charset2uni && cl) {
+		*uni = charset2uni[cl];
+		if (*uni == 0x0000)
+			return -EINVAL;
+		n = 2;
+	} else{
+		*uni = ch;
+		n = 1;
+	}
+	return n;
+}
+
+static struct nls_table table = {
+	"cp949",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_cp949(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_cp949(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_cp949)
+module_exit(exit_nls_cp949)
+MODULE_LICENSE("Dual BSD/GPL");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ *
+---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
diff --git a/fs/nls/nls_cp950.c b/fs/nls/nls_cp950.c
new file mode 100644
index 00000000000000..10dcc45e64376b
--- /dev/null
+++ b/fs/nls/nls_cp950.c
@@ -0,0 +1,9501 @@
+/*
+ * linux/fs/nls_cp950.c
+ *
+ * Charset cp950 translation tables.
+ * This translation table was generated automatically, the
+ * original table can be download from the Microsoft website.
+ * (http://www.microsoft.com/typography/unicode/unicodecp.htm)
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t c2u_A1[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x3000,0xFF0C,0x3001,0x3002,0xFF0E,0x2027,0xFF1B,0xFF1A,/* 0x40-0x47 */
+	0xFF1F,0xFF01,0xFE30,0x2026,0x2025,0xFE50,0xFF64,0xFE52,/* 0x48-0x4F */
+	0x00B7,0xFE54,0xFE55,0xFE56,0xFE57,0xFF5C,0x2013,0xFE31,/* 0x50-0x57 */
+	0x2014,0xFE33,0x2574,0xFE34,0xFE4F,0xFF08,0xFF09,0xFE35,/* 0x58-0x5F */
+	0xFE36,0xFF5B,0xFF5D,0xFE37,0xFE38,0xFF3B,0xFF3D,0xFE39,/* 0x60-0x67 */
+	0xFE3A,0x3010,0x3011,0xFE3B,0xFE3C,0x300A,0x300B,0xFE3D,/* 0x68-0x6F */
+	0xFE3E,0x3008,0x3009,0xFF3E,0xFE40,0x300C,0x300D,0xFE41,/* 0x70-0x77 */
+	0xFE42,0x300E,0x300F,0xFE43,0xFE44,0xFE59,0xFE5A,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0xFE5B,0xFE5C,0xFE5D,0xFE5E,0xFF40,0xFF07,0x201C,/* 0xA0-0xA7 */
+	0xFF02,0x301D,0x301E,0x2035,0x2032,0xFF03,0xFF06,0xFF0A,/* 0xA8-0xAF */
+	0x203B,0x00A7,0x3003,0x25CB,0x25CF,0x25B3,0x25B2,0x25CE,/* 0xB0-0xB7 */
+	0x2606,0x2605,0x25C7,0x25C6,0x25A1,0x25A0,0x25BD,0x25BC,/* 0xB8-0xBF */
+	0x32A3,0x2105,0x0305,0xFFE3,0xFF3F,0x02CD,0xFE49,0xFE4A,/* 0xC0-0xC7 */
+	0xFE4D,0xFE4E,0xFE4B,0xFE4C,0xFE5F,0xFE60,0xFE61,0xFF0B,/* 0xC8-0xCF */
+	0xFF0D,0x00D7,0x00F7,0x00B1,0x221A,0xFF1C,0xFF1E,0xFF1D,/* 0xD0-0xD7 */
+	0x2266,0x2267,0x2260,0x221E,0x2252,0x2263,0xFE62,0xFE63,/* 0xD8-0xDF */
+	0xFE64,0xFE65,0xFE66,0xFF5E,0x2229,0x222A,0x22A5,0x2220,/* 0xE0-0xE7 */
+	0x221F,0x22BF,0x33D2,0x33D1,0x222B,0x222E,0x2235,0x2234,/* 0xE8-0xEF */
+	0x2640,0x2642,0x2641,0x2609,0x2191,0x2193,0x2190,0x2192,/* 0xF0-0xF7 */
+	0x2196,0x2197,0x2199,0x2198,0x2225,0x2223,0xFF0F,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_A2[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0xFF3C,0x2215,0xFE68,0xFF04,0xFFE5,0x3012,0xFFE0,0xFFE1,/* 0x40-0x47 */
+	0xFF05,0xFF20,0x2103,0x2109,0xFE69,0xFE6A,0xFE6B,0x33D5,/* 0x48-0x4F */
+	0x339C,0x339D,0x339E,0x33CE,0x33A1,0x338E,0x338F,0x33C4,/* 0x50-0x57 */
+	0x2218,0x5159,0x515B,0x515E,0x515D,0x5161,0x5163,0x55E7,/* 0x58-0x5F */
+	0x74E9,0x7CCE,0x2581,0x2582,0x2583,0x2584,0x2585,0x2586,/* 0x60-0x67 */
+	0x2587,0x2588,0x258F,0x258E,0x258D,0x258C,0x258B,0x258A,/* 0x68-0x6F */
+	0x2589,0x253C,0x2534,0x252C,0x2524,0x251C,0x2594,0x2500,/* 0x70-0x77 */
+	0x2502,0x2595,0x250C,0x2510,0x2514,0x2518,0x256D,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x256E,0x2570,0x256F,0x0000,0x0000,0x0000,0x0000,/* 0xA0-0xA7 */
+	0x25E2,0x25E3,0x25E5,0x25E4,0x2571,0x2572,0x2573,0xFF10,/* 0xA8-0xAF */
+	0xFF11,0xFF12,0xFF13,0xFF14,0xFF15,0xFF16,0xFF17,0xFF18,/* 0xB0-0xB7 */
+	0xFF19,0x2160,0x2161,0x2162,0x2163,0x2164,0x2165,0x2166,/* 0xB8-0xBF */
+	0x2167,0x2168,0x2169,0x3021,0x3022,0x3023,0x3024,0x3025,/* 0xC0-0xC7 */
+	0x3026,0x3027,0x3028,0x3029,0x0000,0x5344,0x0000,0xFF21,/* 0xC8-0xCF */
+	0xFF22,0xFF23,0xFF24,0xFF25,0xFF26,0xFF27,0xFF28,0xFF29,/* 0xD0-0xD7 */
+	0xFF2A,0xFF2B,0xFF2C,0xFF2D,0xFF2E,0xFF2F,0xFF30,0xFF31,/* 0xD8-0xDF */
+	0xFF32,0xFF33,0xFF34,0xFF35,0xFF36,0xFF37,0xFF38,0xFF39,/* 0xE0-0xE7 */
+	0xFF3A,0xFF41,0xFF42,0xFF43,0xFF44,0xFF45,0xFF46,0xFF47,/* 0xE8-0xEF */
+	0xFF48,0xFF49,0xFF4A,0xFF4B,0xFF4C,0xFF4D,0xFF4E,0xFF4F,/* 0xF0-0xF7 */
+	0xFF50,0xFF51,0xFF52,0xFF53,0xFF54,0xFF55,0xFF56,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_A3[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0xFF57,0xFF58,0xFF59,0xFF5A,0x0391,0x0392,0x0393,0x0394,/* 0x40-0x47 */
+	0x0395,0x0396,0x0397,0x0398,0x0399,0x039A,0x039B,0x039C,/* 0x48-0x4F */
+	0x039D,0x039E,0x039F,0x03A0,0x03A1,0x03A3,0x03A4,0x03A5,/* 0x50-0x57 */
+	0x03A6,0x03A7,0x03A8,0x03A9,0x03B1,0x03B2,0x03B3,0x03B4,/* 0x58-0x5F */
+	0x03B5,0x03B6,0x03B7,0x03B8,0x03B9,0x03BA,0x03BB,0x03BC,/* 0x60-0x67 */
+	0x03BD,0x03BE,0x03BF,0x03C0,0x03C1,0x03C3,0x03C4,0x03C5,/* 0x68-0x6F */
+	0x03C6,0x03C7,0x03C8,0x03C9,0x3105,0x3106,0x3107,0x3108,/* 0x70-0x77 */
+	0x3109,0x310A,0x310B,0x310C,0x310D,0x310E,0x310F,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x3110,0x3111,0x3112,0x3113,0x3114,0x3115,0x3116,/* 0xA0-0xA7 */
+	0x3117,0x3118,0x3119,0x311A,0x311B,0x311C,0x311D,0x311E,/* 0xA8-0xAF */
+	0x311F,0x3120,0x3121,0x3122,0x3123,0x3124,0x3125,0x3126,/* 0xB0-0xB7 */
+	0x3127,0x3128,0x3129,0x2024,0x02C9,0x02CA,0x02C7,0x02CB,/* 0xB8-0xBF */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xC0-0xC7 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xC8-0xCF */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xD0-0xD7 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xD8-0xDF */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xE0-0xE7 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xE8-0xEF */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xF0-0xF7 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_A4[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x4E00,0x4E59,0x4E01,0x4E03,0x4E43,0x4E5D,0xF9BA,0x4E8C,/* 0x40-0x47 */
+	0x4EBA,0x513F,0x5165,0x516B,0x51E0,0x5200,0x5201,0xF98A,/* 0x48-0x4F */
+	0x5315,0x5341,0x535C,0x53C8,0x4E09,0x4E0B,0x4E08,0x4E0A,/* 0x50-0x57 */
+	0x4E2B,0x4E38,0x51E1,0x4E45,0x4E48,0x4E5F,0x4E5E,0x4E8E,/* 0x58-0x5F */
+	0x4EA1,0x5140,0x5203,0x52FA,0x5343,0x53C9,0x53E3,0x571F,/* 0x60-0x67 */
+	0x58EB,0x5915,0x5927,0xF981,0x5B50,0x5B51,0x5B53,0x5BF8,/* 0x68-0x6F */
+	0x5C0F,0x5C22,0x5C38,0x5C71,0x5DDD,0x5DE5,0x5DF1,0x5DF2,/* 0x70-0x77 */
+	0x5DF3,0x5DFE,0x5E72,0x5EFE,0x5F0B,0x5F13,0x624D,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x4E11,0x4E10,0xF967,0x4E2D,0x4E30,0xF95E,0x4E4B,/* 0xA0-0xA7 */
+	0x5C39,0x4E88,0x4E91,0x4E95,0x4E92,0x4E94,0x4EA2,0x4EC1,/* 0xA8-0xAF */
+	0xF9FD,0x4EC3,0x4EC6,0x4EC7,0x4ECD,0x4ECA,0x4ECB,0x4EC4,/* 0xB0-0xB7 */
+	0x5143,0x5141,0x5167,0xF9D1,0x516E,0x516C,0x5197,0x51F6,/* 0xB8-0xBF */
+	0x5206,0xFA00,0x5208,0x52FB,0x52FE,0x52FF,0x5316,0x5339,/* 0xC0-0xC7 */
+	0x5348,0x5347,0x5345,0x535E,0x5384,0x53CB,0x53CA,0x53CD,/* 0xC8-0xCF */
+	0x58EC,0x5929,0x592B,0x592A,0x592D,0x5B54,0x5C11,0x5C24,/* 0xD0-0xD7 */
+	0x5C3A,0x5C6F,0x5DF4,0x5E7B,0x5EFF,0x5F14,0x5F15,0x5FC3,/* 0xD8-0xDF */
+	0x6208,0x6236,0x624B,0x624E,0x652F,0x6587,0x6597,0x65A4,/* 0xE0-0xE7 */
+	0x65B9,0x65E5,0x66F0,0x6708,0x6728,0x6B20,0x6B62,0x6B79,/* 0xE8-0xEF */
+	0x6BCB,0x6BD4,0x6BDB,0x6C0F,0x6C34,0x706B,0x722A,0x7236,/* 0xF0-0xF7 */
+	0x723B,0x7247,0x7259,0x725B,0x72AC,0x738B,0x4E19,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_A5[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x4E16,0x4E15,0x4E14,0x4E18,0x4E3B,0x4E4D,0x4E4F,0x4E4E,/* 0x40-0x47 */
+	0x4EE5,0x4ED8,0x4ED4,0x4ED5,0x4ED6,0x4ED7,0x4EE3,0xF9A8,/* 0x48-0x4F */
+	0x4ED9,0x4EDE,0x5145,0x5144,0x5189,0x518A,0x51AC,0x51F9,/* 0x50-0x57 */
+	0x51FA,0x51F8,0x520A,0x52A0,0x529F,0x5305,0x5306,0xF963,/* 0x58-0x5F */
+	0x531D,0x4EDF,0x534A,0x5349,0x5361,0x5360,0x536F,0x536E,/* 0x60-0x67 */
+	0x53BB,0x53EF,0x53E4,0x53F3,0x53EC,0x53EE,0x53E9,0x53E8,/* 0x68-0x6F */
+	0x53FC,0x53F8,0x53F5,0x53EB,0x53E6,0x53EA,0x53F2,0x53F1,/* 0x70-0x77 */
+	0x53F0,0xF906,0x53ED,0x53FB,0x56DB,0x56DA,0x5916,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x592E,0x5931,0x5974,0x5976,0x5B55,0x5B83,0x5C3C,/* 0xA0-0xA7 */
+	0x5DE8,0x5DE7,0x5DE6,0x5E02,0x5E03,0x5E73,0x5E7C,0x5F01,/* 0xA8-0xAF */
+	0x5F18,0x5F17,0x5FC5,0x620A,0x6253,0x6254,0x6252,0x6251,/* 0xB0-0xB7 */
+	0x65A5,0x65E6,0x672E,0x672C,0x672A,0x672B,0x672D,0x6B63,/* 0xB8-0xBF */
+	0x6BCD,0x6C11,0x6C10,0x6C38,0x6C41,0x6C40,0x6C3E,0x72AF,/* 0xC0-0xC7 */
+	0x7384,0x7389,0x74DC,0x74E6,0x7518,0x751F,0x7528,0x7529,/* 0xC8-0xCF */
+	0x7530,0x7531,0x7532,0x7533,0x758B,0x767D,0x76AE,0x76BF,/* 0xD0-0xD7 */
+	0x76EE,0x77DB,0x77E2,0x77F3,0x793A,0x79BE,0x7A74,0xF9F7,/* 0xD8-0xDF */
+	0x4E1E,0x4E1F,0x4E52,0x4E53,0x4E69,0x4E99,0x4EA4,0x4EA6,/* 0xE0-0xE7 */
+	0x4EA5,0x4EFF,0x4F09,0x4F19,0x4F0A,0x4F15,0x4F0D,0x4F10,/* 0xE8-0xEF */
+	0x4F11,0x4F0F,0x4EF2,0x4EF6,0x4EFB,0x4EF0,0x4EF3,0x4EFD,/* 0xF0-0xF7 */
+	0x4F01,0x4F0B,0x5149,0x5147,0x5146,0x5148,0x5168,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_A6[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x5171,0x518D,0x51B0,0xF99C,0x5211,0x5212,0x520E,0x5216,/* 0x40-0x47 */
+	0xF99D,0x5308,0x5321,0x5320,0x5370,0x5371,0x5409,0xF9DE,/* 0x48-0x4F */
+	0x540C,0x540A,0x5410,0x5401,0x540B,0x5404,0x5411,0x540D,/* 0x50-0x57 */
+	0x5408,0x5403,0x540E,0x5406,0x5412,0x56E0,0x56DE,0x56DD,/* 0x58-0x5F */
+	0x5733,0x5730,0x5728,0x572D,0x572C,0x572F,0x5729,0x5919,/* 0x60-0x67 */
+	0x591A,0x5937,0x5938,0x5984,0x5978,0x5983,0x597D,0x5979,/* 0x68-0x6F */
+	0x5982,0x5981,0x5B57,0x5B58,0x5B87,0x5B88,0xFA04,0x5B89,/* 0x70-0x77 */
+	0x5BFA,0x5C16,0x5C79,0x5DDE,0x5E06,0x5E76,0xF98E,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x5F0F,0x5F1B,0x5FD9,0x5FD6,0x620E,0x620C,0x620D,/* 0xA0-0xA7 */
+	0x6210,0x6263,0x625B,0x6258,0x6536,0x65E9,0x65E8,0x65EC,/* 0xA8-0xAF */
+	0x65ED,0x66F2,0x66F3,0x6709,0x673D,0x6734,0x6731,0x6735,/* 0xB0-0xB7 */
+	0x6B21,0x6B64,0x6B7B,0x6C16,0x6C5D,0x6C57,0x6C59,0x6C5F,/* 0xB8-0xBF */
+	0x6C60,0x6C50,0x6C55,0x6C61,0x6C5B,0x6C4D,0x6C4E,0x7070,/* 0xC0-0xC7 */
+	0x725F,0x725D,0x767E,0x7AF9,0x7C73,0x7CF8,0x7F36,0x7F8A,/* 0xC8-0xCF */
+	0xFA1E,0xF934,0x8003,0x800C,0x8012,0x8033,0x807F,0x8089,/* 0xD0-0xD7 */
+	0xF953,0x808C,0x81E3,0x81EA,0x81F3,0x81FC,0x820C,0x821B,/* 0xD8-0xDF */
+	0x821F,0x826E,0x8272,0x827E,0x866B,0x8840,0xFA08,0x8863,/* 0xE0-0xE7 */
+	0x897F,0x9621,0xF905,0x4EA8,0x4F4D,0x4F4F,0x4F47,0x4F57,/* 0xE8-0xEF */
+	0x4F5E,0x4F34,0x4F5B,0x4F55,0x4F30,0x4F50,0x4F51,0x4F3D,/* 0xF0-0xF7 */
+	0x4F3A,0x4F38,0x4F43,0x4F54,0x4F3C,0x4F46,0x4F63,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_A7[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x4F5C,0x4F60,0x4F2F,0x4F4E,0x4F36,0x4F59,0x4F5D,0x4F48,/* 0x40-0x47 */
+	0x4F5A,0x514C,0x514B,0x514D,0x5175,0x51B6,0xF92E,0x5225,/* 0x48-0x4F */
+	0x5224,0xF9DD,0x522A,0x5228,0x52AB,0x52A9,0x52AA,0x52AC,/* 0x50-0x57 */
+	0x5323,0x5373,0xF91C,0xF9ED,0x542D,0x541E,0x543E,0x5426,/* 0x58-0x5F */
+	0x544E,0x5427,0x5446,0x5443,0x5433,0x5448,0xF980,0x541B,/* 0x60-0x67 */
+	0x5429,0x544A,0x5439,0x543B,0x5438,0x542E,0x5435,0x5436,/* 0x68-0x6F */
+	0x5420,0x543C,0x5440,0x5431,0x542B,0x541F,0x542C,0x56EA,/* 0x70-0x77 */
+	0x56F0,0x56E4,0x56EB,0x574A,0x5751,0x5740,0x574D,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x5747,0x574E,0x573E,0x5750,0x574F,0x573B,0x58EF,/* 0xA0-0xA7 */
+	0x593E,0x599D,0x5992,0x59A8,0x599E,0x59A3,0x5999,0x5996,/* 0xA8-0xAF */
+	0x598D,0x59A4,0x5993,0x598A,0x59A5,0x5B5D,0x5B5C,0x5B5A,/* 0xB0-0xB7 */
+	0x5B5B,0x5B8C,0x5B8B,0x5B8F,0x5C2C,0x5C40,0x5C41,0xF9BD,/* 0xB8-0xBF */
+	0x5C3E,0x5C90,0x5C91,0x5C94,0x5C8C,0x5DEB,0x5E0C,0x5E8F,/* 0xC0-0xC7 */
+	0x5E87,0x5E8A,0x5EF7,0xF943,0x5F1F,0x5F64,0x5F62,0x5F77,/* 0xC8-0xCF */
+	0x5F79,0x5FD8,0x5FCC,0x5FD7,0x5FCD,0x5FF1,0x5FEB,0x5FF8,/* 0xD0-0xD7 */
+	0x5FEA,0x6212,0x6211,0x6284,0x6297,0x6296,0x6280,0x6276,/* 0xD8-0xDF */
+	0x6289,0x626D,0x628A,0x627C,0x627E,0x6279,0x6273,0x6292,/* 0xE0-0xE7 */
+	0x626F,0x6298,0x626E,0x6295,0x6293,0x6291,0x6286,0x6539,/* 0xE8-0xEF */
+	0x653B,0x6538,0x65F1,0xF901,0x675F,0xF9E1,0x674F,0x6750,/* 0xF0-0xF7 */
+	0x6751,0x675C,0x6756,0x675E,0x6749,0x6746,0x6760,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_A8[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6753,0x6757,0x6B65,0x6BCF,0x6C42,0x6C5E,0x6C99,0x6C81,/* 0x40-0x47 */
+	0xF972,0x6C89,0x6C85,0x6C9B,0x6C6A,0x6C7A,0x6C90,0x6C70,/* 0x48-0x4F */
+	0x6C8C,0x6C68,0x6C96,0x6C92,0x6C7D,0x6C83,0x6C72,0x6C7E,/* 0x50-0x57 */
+	0x6C74,0x6C86,0x6C76,0x6C8D,0x6C94,0x6C98,0x6C82,0x7076,/* 0x58-0x5F */
+	0x707C,0x707D,0x7078,0xF946,0x7261,0x7260,0x72C4,0x72C2,/* 0x60-0x67 */
+	0x7396,0x752C,0x752B,0x7537,0x7538,0x7682,0x76EF,0x77E3,/* 0x68-0x6F */
+	0x79C1,0x79C0,0x79BF,0x7A76,0x7CFB,0x7F55,0x8096,0x8093,/* 0x70-0x77 */
+	0x809D,0x8098,0x809B,0x809A,0x80B2,0xF97C,0x8292,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x828B,0x828D,0xFA0A,0x89D2,0x8A00,0x8C37,0x8C46,/* 0xA0-0xA7 */
+	0x8C55,0x8C9D,0x8D64,0x8D70,0x8DB3,0x8EAB,0xF902,0x8F9B,/* 0xA8-0xAF */
+	0xF971,0x8FC2,0x8FC6,0x8FC5,0x8FC4,0x5DE1,0x9091,0x90A2,/* 0xB0-0xB7 */
+	0x90AA,0x90A6,0x90A3,0x9149,0x91C6,0xF9E9,0x9632,0xF9C6,/* 0xB8-0xBF */
+	0x9631,0x962A,0x962C,0x4E26,0x4E56,0x4E73,0x4E8B,0x4E9B,/* 0xC0-0xC7 */
+	0x4E9E,0x4EAB,0x4EAC,0x4F6F,0x4F9D,0x4F8D,0x4F73,0x4F7F,/* 0xC8-0xCF */
+	0x4F6C,0x4F9B,0xF9B5,0xF92D,0x4F83,0x4F70,0x4F75,0x4F88,/* 0xD0-0xD7 */
+	0x4F69,0x4F7B,0x4F96,0x4F7E,0x4F8F,0x4F91,0x4F7A,0x5154,/* 0xD8-0xDF */
+	0x5152,0x5155,0xF978,0x5177,0x5176,0x5178,0x51BD,0x51FD,/* 0xE0-0xE7 */
+	0x523B,0x5238,0x5237,0xF9FF,0x5230,0x522E,0x5236,0x5241,/* 0xE8-0xEF */
+	0x52BE,0x52BB,0x5352,0x5354,0x5353,0x5351,0x5366,0x5377,/* 0xF0-0xF7 */
+	0x5378,0x5379,0x53D6,0x53D4,0x53D7,0x5473,0x5475,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_A9[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x5496,0x5478,0x5495,0x5480,0x547B,0x5477,0x5484,0x5492,/* 0x40-0x47 */
+	0x5486,0x547C,0x5490,0x5471,0x5476,0x548C,0x549A,0x5462,/* 0x48-0x4F */
+	0x5468,0x548B,0x547D,0x548E,0x56FA,0x5783,0x5777,0x576A,/* 0x50-0x57 */
+	0x5769,0x5761,0x5766,0x5764,0x577C,0x591C,0x5949,0x5947,/* 0x58-0x5F */
+	0xF90C,0x5944,0x5954,0x59BE,0x59BB,0x59D4,0x59B9,0x59AE,/* 0x60-0x67 */
+	0x59D1,0x59C6,0x59D0,0x59CD,0x59CB,0x59D3,0x59CA,0x59AF,/* 0x68-0x6F */
+	0x59B3,0x59D2,0x59C5,0x5B5F,0x5B64,0x5B63,0x5B97,0x5B9A,/* 0x70-0x77 */
+	0x5B98,0x5B9C,0x5B99,0x5B9B,0x5C1A,0x5C48,0x5C45,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x5C46,0x5CB7,0x5CA1,0x5CB8,0x5CA9,0x5CAB,0x5CB1,/* 0xA0-0xA7 */
+	0x5CB3,0x5E18,0x5E1A,0x5E16,0x5E15,0x5E1B,0x5E11,0x5E78,/* 0xA8-0xAF */
+	0x5E9A,0x5E97,0x5E9C,0x5E95,0x5E96,0x5EF6,0x5F26,0x5F27,/* 0xB0-0xB7 */
+	0x5F29,0x5F80,0x5F81,0x5F7F,0x5F7C,0x5FDD,0x5FE0,0x5FFD,/* 0xB8-0xBF */
+	0xF9A3,0x5FFF,0x600F,0x6014,0x602F,0x6035,0x6016,0x602A,/* 0xC0-0xC7 */
+	0x6015,0x6021,0x6027,0x6029,0x602B,0x601B,0x6216,0x6215,/* 0xC8-0xCF */
+	0x623F,0x623E,0x6240,0x627F,0xF925,0x62CC,0x62C4,0x62BF,/* 0xD0-0xD7 */
+	0x62C2,0x62B9,0x62D2,0x62DB,0x62AB,0xFA02,0x62D4,0x62CB,/* 0xD8-0xDF */
+	0x62C8,0x62A8,0x62BD,0x62BC,0x62D0,0x62D9,0x62C7,0x62CD,/* 0xE0-0xE7 */
+	0x62B5,0x62DA,0x62B1,0x62D8,0x62D6,0x62D7,0x62C6,0x62AC,/* 0xE8-0xEF */
+	0x62CE,0x653E,0x65A7,0x65BC,0x65FA,0x6614,0xF9E0,0x660C,/* 0xF0-0xF7 */
+	0x6606,0x6602,0x660E,0x6600,0x660F,0x6615,0x660A,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_AA[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6607,0x670D,0x670B,0x676D,0x678B,0x6795,0x6771,0x679C,/* 0x40-0x47 */
+	0x6773,0x6777,0x6787,0x679D,0xF9F4,0x676F,0x6770,0x677F,/* 0x48-0x4F */
+	0x6789,0x677E,0x6790,0x6775,0x679A,0x6793,0x677C,0x676A,/* 0x50-0x57 */
+	0x6772,0x6B23,0x6B66,0x6B67,0x6B7F,0x6C13,0x6C1B,0x6CE3,/* 0x58-0x5F */
+	0x6CE8,0x6CF3,0x6CB1,0xF968,0xF9E3,0x6CB3,0x6CBD,0x6CBE,/* 0x60-0x67 */
+	0x6CBC,0x6CE2,0x6CAB,0x6CD5,0x6CD3,0x6CB8,0x6CC4,0x6CB9,/* 0x68-0x6F */
+	0x6CC1,0x6CAE,0x6CD7,0x6CC5,0x6CF1,0x6CBF,0x6CBB,0x6CE1,/* 0x70-0x77 */
+	0x6CDB,0x6CCA,0x6CAC,0x6CEF,0x6CDC,0x6CD6,0x6CE0,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x7095,0x708E,0x7092,0x708A,0xF9FB,0x722C,0x722D,/* 0xA0-0xA7 */
+	0x7238,0x7248,0x7267,0x7269,0xF9FA,0x72CE,0x72D9,0x72D7,/* 0xA8-0xAF */
+	0x72D0,0x73A9,0x73A8,0x739F,0x73AB,0x73A5,0x753D,0x759D,/* 0xB0-0xB7 */
+	0x7599,0x759A,0x7684,0x76C2,0x76F2,0x76F4,0x77E5,0x77FD,/* 0xB8-0xBF */
+	0x793E,0x7940,0x7941,0x79C9,0x79C8,0x7A7A,0x7A79,0x7AFA,/* 0xC0-0xC7 */
+	0x7CFE,0x7F54,0x7F8C,0x7F8B,0x8005,0x80BA,0x80A5,0x80A2,/* 0xC8-0xCF */
+	0x80B1,0x80A1,0x80AB,0x80A9,0x80B4,0x80AA,0x80AF,0x81E5,/* 0xD0-0xD7 */
+	0x81FE,0x820D,0x82B3,0x829D,0x8299,0x82AD,0x82BD,0x829F,/* 0xD8-0xDF */
+	0x82B9,0x82B1,0x82AC,0x82A5,0x82AF,0x82B8,0x82A3,0x82B0,/* 0xE0-0xE7 */
+	0x82BE,0x82B7,0x864E,0x8671,0x521D,0x8868,0x8ECB,0x8FCE,/* 0xE8-0xEF */
+	0x8FD4,0x8FD1,0x90B5,0x90B8,0x90B1,0x90B6,0x91C7,0xF90A,/* 0xF0-0xF7 */
+	0x9577,0x9580,0x961C,0x9640,0x963F,0x963B,0x9644,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_AB[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x9642,0x96B9,0x96E8,0x9752,0x975E,0x4E9F,0x4EAD,0xF977,/* 0x40-0x47 */
+	0x4FE1,0x4FB5,0x4FAF,0xF965,0x4FE0,0x4FD1,0x4FCF,0x4FDD,/* 0x48-0x4F */
+	0x4FC3,0x4FB6,0x4FD8,0x4FDF,0x4FCA,0x4FD7,0x4FAE,0x4FD0,/* 0x50-0x57 */
+	0x4FC4,0x4FC2,0x4FDA,0x4FCE,0x4FDE,0x4FB7,0x5157,0x5192,/* 0x58-0x5F */
+	0x5191,0x51A0,0x524E,0x5243,0x524A,0x524D,0x524C,0x524B,/* 0x60-0x67 */
+	0x5247,0x52C7,0x52C9,0x52C3,0x52C1,0x530D,0x5357,0x537B,/* 0x68-0x6F */
+	0x539A,0x53DB,0x54AC,0x54C0,0x54A8,0x54CE,0x54C9,0x54B8,/* 0x70-0x77 */
+	0x54A6,0x54B3,0x54C7,0x54C2,0xF99E,0x54AA,0x54C1,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x54C4,0x54C8,0x54AF,0x54AB,0x54B1,0x54BB,0x54A9,/* 0xA0-0xA7 */
+	0x54A7,0x54BF,0x56FF,0x5782,0x578B,0x57A0,0x57A3,0x57A2,/* 0xA8-0xAF */
+	0x57CE,0x57AE,0x5793,0x5955,0xF909,0x594F,0x594E,0x5950,/* 0xB0-0xB7 */
+	0x59DC,0x59D8,0x59FF,0x59E3,0x59E8,0x5A03,0x59E5,0x59EA,/* 0xB8-0xBF */
+	0x59DA,0x59E6,0x5A01,0x59FB,0x5B69,0x5BA3,0x5BA6,0x5BA4,/* 0xC0-0xC7 */
+	0x5BA2,0x5BA5,0x5C01,0x5C4E,0x5C4F,0x5C4D,0x5C4B,0x5CD9,/* 0xC8-0xCF */
+	0x5CD2,0x5DF7,0x5E1D,0x5E25,0x5E1F,0x5E7D,0x5EA0,0xFA01,/* 0xD0-0xD7 */
+	0x5EFA,0x5F08,0x5F2D,0x5F65,0x5F88,0x5F85,0x5F8A,0xF9D8,/* 0xD8-0xDF */
+	0x5F87,0x5F8C,0x5F89,0xF960,0x601D,0x6020,0x6025,0x600E,/* 0xE0-0xE7 */
+	0x6028,0x604D,0x6070,0x6068,0x6062,0x6046,0x6043,0x606C,/* 0xE8-0xEF */
+	0x606B,0x606A,0x6064,0x6241,0x62DC,0x6316,0x6309,0x62FC,/* 0xF0-0xF7 */
+	0x62ED,0x6301,0x62EE,0x62FD,0x6307,0x62F1,0x62F7,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_AC[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x62EF,0x62EC,0xF973,0x62F4,0x6311,0x6302,0x653F,0x6545,/* 0x40-0x47 */
+	0x65AB,0x65BD,0x65E2,0x6625,0x662D,0x6620,0x6627,0x662F,/* 0x48-0x4F */
+	0x661F,0x6628,0x6631,0x6624,0x66F7,0x67FF,0x67D3,0x67F1,/* 0x50-0x57 */
+	0x67D4,0x67D0,0x67EC,0x67B6,0x67AF,0x67F5,0x67E9,0x67EF,/* 0x58-0x5F */
+	0x67C4,0x67D1,0x67B4,0x67DA,0x67E5,0x67B8,0x67CF,0x67DE,/* 0x60-0x67 */
+	0xF9C9,0x67B0,0x67D9,0x67E2,0x67DD,0x67D2,0x6B6A,0x6B83,/* 0x68-0x6F */
+	0x6B86,0x6BB5,0x6BD2,0x6BD7,0x6C1F,0x6CC9,0x6D0B,0x6D32,/* 0x70-0x77 */
+	0x6D2A,0xF9CA,0x6D25,0x6D0C,0x6D31,0xFA05,0x6D17,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x6D3B,0x6D3D,0x6D3E,0x6D36,0xF915,0x6CF5,0x6D39,/* 0xA0-0xA7 */
+	0x6D27,0x6D38,0x6D29,0x6D2E,0x6D35,0x6D0E,0x6D2B,0x70AB,/* 0xA8-0xAF */
+	0x70BA,0x70B3,0x70AC,0x70AF,0x70AD,0x70B8,0x70AE,0x70A4,/* 0xB0-0xB7 */
+	0x7230,0x7272,0x726F,0x7274,0x72E9,0x72E0,0x72E1,0x73B7,/* 0xB8-0xBF */
+	0x73CA,0x73BB,0xF9AD,0x73CD,0x73C0,0x73B3,0x751A,0x752D,/* 0xC0-0xC7 */
+	0x754F,0x754C,0x754E,0x754B,0x75AB,0x75A4,0x75A5,0x75A2,/* 0xC8-0xCF */
+	0x75A3,0x7678,0x7686,0x7687,0x7688,0x76C8,0x76C6,0x76C3,/* 0xD0-0xD7 */
+	0x76C5,0xF96D,0x76F9,0x76F8,0x7709,0x770B,0x76FE,0x76FC,/* 0xD8-0xDF */
+	0x7707,0x77DC,0x7802,0x7814,0x780C,0x780D,0x7946,0x7949,/* 0xE0-0xE7 */
+	0x7948,0x7947,0x79B9,0x79BA,0x79D1,0x79D2,0x79CB,0x7A7F,/* 0xE8-0xEF */
+	0x7A81,0x7AFF,0x7AFD,0x7C7D,0x7D02,0x7D05,0x7D00,0x7D09,/* 0xF0-0xF7 */
+	0x7D07,0x7D04,0x7D06,0x7F38,0x7F8E,0x7FBF,0x8004,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_AD[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8010,0x800D,0x8011,0x8036,0x80D6,0x80E5,0x80DA,0x80C3,/* 0x40-0x47 */
+	0x80C4,0x80CC,0x80E1,0x80DB,0x80CE,0x80DE,0x80E4,0x80DD,/* 0x48-0x4F */
+	0x81F4,0x8222,0x82E7,0x8303,0x8305,0x82E3,0x82DB,0x82E6,/* 0x50-0x57 */
+	0x8304,0xF974,0x8302,0x8309,0x82D2,0x82D7,0x82F1,0x8301,/* 0x58-0x5F */
+	0x82DC,0x82D4,0x82D1,0x82DE,0x82D3,0x82DF,0x82EF,0x8306,/* 0x60-0x67 */
+	0x8650,0x8679,0x867B,0x867A,0x884D,0x886B,0x8981,0x89D4,/* 0x68-0x6F */
+	0x8A08,0x8A02,0x8A03,0x8C9E,0x8CA0,0x8D74,0x8D73,0x8DB4,/* 0x70-0x77 */
+	0x8ECD,0x8ECC,0x8FF0,0x8FE6,0x8FE2,0x8FEA,0x8FE5,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x8FED,0x8FEB,0x8FE4,0x8FE8,0x90CA,0x90CE,0x90C1,/* 0xA0-0xA7 */
+	0x90C3,0x914B,0x914A,0x91CD,0x9582,0x9650,0xF951,0x964C,/* 0xA8-0xAF */
+	0xFA09,0x9762,0x9769,0x97CB,0x97ED,0x97F3,0x9801,0x98A8,/* 0xB0-0xB7 */
+	0x98DB,0x98DF,0x9996,0x9999,0x4E58,0x4EB3,0x500C,0x500D,/* 0xB8-0xBF */
+	0x5023,0x4FEF,0x5026,0x5025,0x4FF8,0x5029,0x5016,0x5006,/* 0xC0-0xC7 */
+	0x503C,0x501F,0x501A,0x5012,0x5011,0x4FFA,0x5000,0x5014,/* 0xC8-0xCF */
+	0x5028,0x4FF1,0x5021,0x500B,0x5019,0x5018,0x4FF3,0x4FEE,/* 0xD0-0xD7 */
+	0x502D,0x502A,0x4FFE,0xF9D4,0x5009,0x517C,0x51A4,0x51A5,/* 0xD8-0xDF */
+	0x51A2,0x51CD,0xF955,0x51C6,0x51CB,0x5256,0x525C,0x5254,/* 0xE0-0xE7 */
+	0x525B,0x525D,0x532A,0x537F,0x539F,0x539D,0x53DF,0x54E8,/* 0xE8-0xEF */
+	0x5510,0x5501,0x5537,0x54FC,0x54E5,0x54F2,0x5506,0x54FA,/* 0xF0-0xF7 */
+	0x5514,0x54E9,0x54ED,0x54E1,0x5509,0x54EE,0x54EA,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_AE[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x54E6,0x5527,0x5507,0x54FD,0x550F,0x5703,0x5704,0x57C2,/* 0x40-0x47 */
+	0x57D4,0x57CB,0x57C3,0x5809,0x590F,0x5957,0x5958,0x595A,/* 0x48-0x4F */
+	0x5A11,0x5A18,0x5A1C,0x5A1F,0x5A1B,0x5A13,0x59EC,0x5A20,/* 0x50-0x57 */
+	0x5A23,0x5A29,0x5A25,0x5A0C,0x5A09,0x5B6B,0x5C58,0x5BB0,/* 0x58-0x5F */
+	0x5BB3,0x5BB6,0x5BB4,0x5BAE,0x5BB5,0x5BB9,0x5BB8,0x5C04,/* 0x60-0x67 */
+	0x5C51,0x5C55,0x5C50,0x5CED,0x5CFD,0x5CFB,0x5CEA,0x5CE8,/* 0x68-0x6F */
+	0x5CF0,0x5CF6,0x5D01,0x5CF4,0x5DEE,0x5E2D,0x5E2B,0x5EAB,/* 0x70-0x77 */
+	0x5EAD,0x5EA7,0x5F31,0x5F92,0x5F91,0x5F90,0x6059,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x6063,0x6065,0x6050,0x6055,0x606D,0x6069,0x606F,/* 0xA0-0xA7 */
+	0x6084,0x609F,0x609A,0x608D,0x6094,0x608C,0x6085,0x6096,/* 0xA8-0xAF */
+	0x6247,0x62F3,0x6308,0x62FF,0x634E,0x633E,0x632F,0x6355,/* 0xB0-0xB7 */
+	0x6342,0x6346,0x634F,0x6349,0x633A,0x6350,0x633D,0x632A,/* 0xB8-0xBF */
+	0x632B,0x6328,0x634D,0x634C,0x6548,0x6549,0xF9BE,0x65C1,/* 0xC0-0xC7 */
+	0xF983,0x6642,0x6649,0x664F,0x6643,0x6652,0x664C,0x6645,/* 0xC8-0xCF */
+	0x6641,0x66F8,0x6714,0x6715,0xF929,0x6821,0x6838,0x6848,/* 0xD0-0xD7 */
+	0x6846,0x6853,0x6839,0x6842,0x6854,0x6829,0x68B3,0xF9DA,/* 0xD8-0xDF */
+	0x684C,0x6851,0x683D,0x67F4,0x6850,0x6840,0x683C,0x6843,/* 0xE0-0xE7 */
+	0x682A,0x6845,0x6813,0x6818,0x6841,0x6B8A,0x6B89,0x6BB7,/* 0xE8-0xEF */
+	0x6C23,0x6C27,0x6C28,0x6C26,0x6C24,0x6CF0,0xF92A,0x6D95,/* 0xF0-0xF7 */
+	0x6D88,0x6D87,0x6D66,0x6D78,0x6D77,0x6D59,0x6D93,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_AF[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6D6C,0x6D89,0x6D6E,0x6D5A,0x6D74,0x6D69,0x6D8C,0x6D8A,/* 0x40-0x47 */
+	0x6D79,0x6D85,0x6D65,0x6D94,0x70CA,0x70D8,0x70E4,0xF916,/* 0x48-0x4F */
+	0xF99F,0x70CF,0x7239,0x7279,0xF92B,0x72F9,0x72FD,0x72F8,/* 0x50-0x57 */
+	0x72F7,0x7386,0x73ED,0xF9CC,0x73EE,0x73E0,0x73EA,0xF917,/* 0x58-0x5F */
+	0x7554,0x755D,0x755C,0x755A,0xF9CD,0x75BE,0x75C5,0x75C7,/* 0x60-0x67 */
+	0x75B2,0x75B3,0x75BD,0x75BC,0x75B9,0x75C2,0x75B8,0x768B,/* 0x68-0x6F */
+	0x76B0,0xFA17,0x76CD,0x76CE,0x7729,0x771F,0x7720,0x7728,/* 0x70-0x77 */
+	0x77E9,0x7830,0x7827,0x7838,0x781D,0x7834,0x7837,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x7825,0x782D,0x7820,0x781F,0x7832,0x7955,0x7950,/* 0xA0-0xA7 */
+	0x7960,0x795F,0x7956,0xFA19,0x795D,0x7957,0x795A,0x79E4,/* 0xA8-0xAF */
+	0x79E3,0x79E7,0x79DF,0x79E6,0x79E9,0x79D8,0x7A84,0x7A88,/* 0xB0-0xB7 */
+	0x7AD9,0x7B06,0x7B11,0x7C89,0x7D21,0x7D17,0x7D0B,0x7D0A,/* 0xB8-0xBF */
+	0x7D20,0xF96A,0x7D14,0xF9CF,0x7D15,0x7D1A,0x7D1C,0x7D0D,/* 0xC0-0xC7 */
+	0x7D19,0x7D1B,0x7F3A,0x7F5F,0x7F94,0x7FC5,0x7FC1,0x8006,/* 0xC8-0xCF */
+	0x8018,0x8015,0x8019,0x8017,0x803D,0x803F,0x80F1,0x8102,/* 0xD0-0xD7 */
+	0x80F0,0x8105,0x80ED,0x80F4,0x8106,0x80F8,0x80F3,0x8108,/* 0xD8-0xDF */
+	0x80FD,0x810A,0x80FC,0x80EF,0x81ED,0x81EC,0x8200,0x8210,/* 0xE0-0xE7 */
+	0x822A,0x822B,0x8228,0x822C,0x82BB,0x832B,0x8352,0x8354,/* 0xE8-0xEF */
+	0x834A,0x8338,0x8350,0x8349,0x8335,0x8334,0x834F,0x8332,/* 0xF0-0xF7 */
+	0x8339,0xF9FE,0x8317,0x8340,0x8331,0x8328,0x8343,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_B0[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8654,0x868A,0x86AA,0x8693,0x86A4,0x86A9,0x868C,0x86A3,/* 0x40-0x47 */
+	0x869C,0x8870,0x8877,0x8881,0x8882,0x887D,0x8879,0x8A18,/* 0x48-0x4F */
+	0x8A10,0x8A0E,0x8A0C,0x8A15,0x8A0A,0x8A17,0x8A13,0x8A16,/* 0x50-0x57 */
+	0x8A0F,0x8A11,0xF900,0x8C7A,0x8C79,0x8CA1,0x8CA2,0x8D77,/* 0x58-0x5F */
+	0x8EAC,0x8ED2,0x8ED4,0x8ECF,0x8FB1,0x9001,0x9006,0x8FF7,/* 0x60-0x67 */
+	0x9000,0x8FFA,0x8FF4,0x9003,0x8FFD,0x9005,0x8FF8,0x9095,/* 0x68-0x6F */
+	0x90E1,0x90DD,0x90E2,0x9152,0x914D,0x914C,0x91D8,0x91DD,/* 0x70-0x77 */
+	0x91D7,0x91DC,0x91D9,0x9583,0x9662,0x9663,0x9661,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x965B,0x965D,0x9664,0x9658,0x965E,0x96BB,0x98E2,/* 0xA0-0xA7 */
+	0x99AC,0x9AA8,0x9AD8,0x9B25,0x9B32,0x9B3C,0x4E7E,0x507A,/* 0xA8-0xAF */
+	0x507D,0x505C,0x5047,0x5043,0x504C,0x505A,0x5049,0x5065,/* 0xB0-0xB7 */
+	0x5076,0x504E,0x5055,0x5075,0x5074,0x5077,0x504F,0x500F,/* 0xB8-0xBF */
+	0x506F,0x506D,0x515C,0x5195,0x51F0,0x526A,0x526F,0xF952,/* 0xC0-0xC7 */
+	0x52D9,0x52D8,0x52D5,0x5310,0x530F,0x5319,0xF9EB,0x5340,/* 0xC8-0xCF */
+	0x533E,0xF96B,0x66FC,0x5546,0x556A,0x5566,0x5544,0x555E,/* 0xD0-0xD7 */
+	0x5561,0x5543,0x554A,0x5531,0x5556,0x554F,0x5555,0x552F,/* 0xD8-0xDF */
+	0x5564,0x5538,0x552E,0x555C,0x552C,0x5563,0x5533,0x5541,/* 0xE0-0xE7 */
+	0x5557,0x5708,0x570B,0x5709,0x57DF,0x5805,0x580A,0x5806,/* 0xE8-0xEF */
+	0x57E0,0x57E4,0x57FA,0x5802,0x5835,0x57F7,0x57F9,0x5920,/* 0xF0-0xF7 */
+	0x5962,0x5A36,0x5A41,0x5A49,0x5A66,0x5A6A,0x5A40,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_B1[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x5A3C,0x5A62,0x5A5A,0x5A46,0x5A4A,0x5B70,0x5BC7,0x5BC5,/* 0x40-0x47 */
+	0x5BC4,0x5BC2,0x5BBF,0x5BC6,0x5C09,0x5C08,0x5C07,0x5C60,/* 0x48-0x4F */
+	0x5C5C,0x5C5D,0x5D07,0x5D06,0x5D0E,0x5D1B,0x5D16,0x5D22,/* 0x50-0x57 */
+	0x5D11,0x5D29,0x5D14,0xF9D5,0x5D24,0x5D27,0x5D17,0x5DE2,/* 0x58-0x5F */
+	0x5E38,0x5E36,0x5E33,0x5E37,0x5EB7,0x5EB8,0x5EB6,0x5EB5,/* 0x60-0x67 */
+	0x5EBE,0x5F35,0x5F37,0x5F57,0x5F6C,0x5F69,0x5F6B,0x5F97,/* 0x68-0x6F */
+	0x5F99,0x5F9E,0x5F98,0x5FA1,0x5FA0,0x5F9C,0x607F,0x60A3,/* 0x70-0x77 */
+	0x6089,0x60A0,0x60A8,0x60CB,0x60B4,0x60E6,0x60BD,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x60C5,0x60BB,0x60B5,0x60DC,0x60BC,0x60D8,0x60D5,/* 0xA0-0xA7 */
+	0x60C6,0x60DF,0x60B8,0x60DA,0x60C7,0x621A,0x621B,0x6248,/* 0xA8-0xAF */
+	0xF975,0x63A7,0x6372,0x6396,0x63A2,0x63A5,0x6377,0x6367,/* 0xB0-0xB7 */
+	0x6398,0x63AA,0x6371,0x63A9,0x6389,0x6383,0x639B,0x636B,/* 0xB8-0xBF */
+	0x63A8,0x6384,0x6388,0x6399,0x63A1,0x63AC,0x6392,0x638F,/* 0xC0-0xC7 */
+	0x6380,0xF9A4,0x6369,0x6368,0x637A,0x655D,0x6556,0x6551,/* 0xC8-0xCF */
+	0x6559,0x6557,0x555F,0x654F,0x6558,0x6555,0x6554,0x659C,/* 0xD0-0xD7 */
+	0x659B,0x65AC,0x65CF,0x65CB,0x65CC,0x65CE,0x665D,0x665A,/* 0xD8-0xDF */
+	0x6664,0x6668,0x6666,0x665E,0x66F9,0x52D7,0x671B,0xF97A,/* 0xE0-0xE7 */
+	0x68AF,0x68A2,0x6893,0x68B5,0x687F,0x6876,0x68B1,0x68A7,/* 0xE8-0xEF */
+	0x6897,0x68B0,0x6883,0x68C4,0x68AD,0x6886,0x6885,0x6894,/* 0xF0-0xF7 */
+	0x689D,0xF9E2,0x689F,0x68A1,0x6882,0x6B32,0xF970,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_B2[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6BEB,0x6BEC,0x6C2B,0x6D8E,0x6DBC,0x6DF3,0x6DD9,0x6DB2,/* 0x40-0x47 */
+	0x6DE1,0x6DCC,0x6DE4,0x6DFB,0x6DFA,0x6E05,0x6DC7,0xF9F5,/* 0x48-0x4F */
+	0x6DAF,0x6DD1,0x6DAE,0x6DDE,0x6DF9,0x6DB8,0x6DF7,0x6DF5,/* 0x50-0x57 */
+	0x6DC5,0x6DD2,0x6E1A,0x6DB5,0xF94D,0x6DEB,0x6DD8,0xF9D6,/* 0x58-0x5F */
+	0x6DF1,0x6DEE,0x6DE8,0x6DC6,0x6DC4,0x6DAA,0x6DEC,0x6DBF,/* 0x60-0x67 */
+	0x6DE6,0x70F9,0x7109,0x710A,0x70FD,0x70EF,0x723D,0x727D,/* 0x68-0x6F */
+	0x7281,0x731C,0x731B,0x7316,0x7313,0x7319,0xF9DB,0x7405,/* 0x70-0x77 */
+	0x740A,0x7403,0xF9E4,0x73FE,0x740D,0x74E0,0x74F6,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x74F7,0x751C,0x7522,0xF976,0x7566,0x7562,0xF962,/* 0xA0-0xA7 */
+	0x758F,0x75D4,0x75D5,0x75B5,0x75CA,0x75CD,0x768E,0x76D4,/* 0xA8-0xAF */
+	0x76D2,0x76DB,0x7737,0x773E,0x773C,0x7736,0x7738,0x773A,/* 0xB0-0xB7 */
+	0xF9CE,0x7843,0x784E,0xFA1A,0x7968,0x796D,0x79FB,0x7A92,/* 0xB8-0xBF */
+	0x7A95,0xF9F8,0x7B28,0x7B1B,0x7B2C,0x7B26,0x7B19,0x7B1E,/* 0xC0-0xC7 */
+	0x7B2E,0xF9F9,0x7C97,0x7C95,0x7D46,0x7D43,0x7D71,0x7D2E,/* 0xC8-0xCF */
+	0x7D39,0x7D3C,0x7D40,0x7D30,0x7D33,0x7D44,0xF94F,0x7D42,/* 0xD0-0xD7 */
+	0x7D32,0x7D31,0x7F3D,0x7F9E,0xF9AF,0x7FCC,0x7FCE,0x7FD2,/* 0xD8-0xDF */
+	0x801C,0x804A,0xF9B0,0x812F,0x8116,0x8123,0x812B,0x8129,/* 0xE0-0xE7 */
+	0x8130,0x8124,0x8202,0x8235,0x8237,0x8236,0x8239,0x838E,/* 0xE8-0xEF */
+	0x839E,0x8398,0x8378,0x83A2,0x8396,0x83BD,0x83AB,0x8392,/* 0xF0-0xF7 */
+	0x838A,0x8393,0x8389,0x83A0,0x8377,0x837B,0x837C,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_B3[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8386,0x83A7,0x8655,0x5F6A,0x86C7,0x86C0,0x86B6,0x86C4,/* 0x40-0x47 */
+	0x86B5,0x86C6,0x86CB,0x86B1,0x86AF,0x86C9,0x8853,0x889E,/* 0x48-0x4F */
+	0x8888,0x88AB,0x8892,0x8896,0x888D,0x888B,0x8993,0x898F,/* 0x50-0x57 */
+	0x8A2A,0x8A1D,0x8A23,0x8A25,0x8A31,0x8A2D,0x8A1F,0x8A1B,/* 0x58-0x5F */
+	0x8A22,0x8C49,0x8C5A,0x8CA9,0x8CAC,0x8CAB,0x8CA8,0x8CAA,/* 0x60-0x67 */
+	0x8CA7,0x8D67,0x8D66,0x8DBE,0x8DBA,0x8EDB,0x8EDF,0x9019,/* 0x68-0x6F */
+	0x900D,0x901A,0x9017,0xF99A,0x901F,0x901D,0x9010,0x9015,/* 0x70-0x77 */
+	0x901E,0x9020,0x900F,0x9022,0x9016,0x901B,0x9014,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x90E8,0x90ED,0xFA26,0x9157,0x91CE,0x91F5,0x91E6,/* 0xA0-0xA7 */
+	0x91E3,0x91E7,0x91ED,0x91E9,0x9589,0x966A,0xF959,0x9673,/* 0xA8-0xAF */
+	0xF9D3,0x9670,0x9674,0x9676,0x9677,0x966C,0x96C0,0x96EA,/* 0xB0-0xB7 */
+	0x96E9,0x7AE0,0x7ADF,0x9802,0x9803,0x9B5A,0x9CE5,0x9E75,/* 0xB8-0xBF */
+	0xF940,0x9EA5,0x9EBB,0x50A2,0x508D,0x5085,0x5099,0x5091,/* 0xC0-0xC7 */
+	0x5080,0x5096,0x5098,0x509A,0x6700,0x51F1,0x5272,0x5274,/* 0xC8-0xCF */
+	0x5275,0x5269,0xF92F,0x52DD,0x52DB,0x535A,0x53A5,0x557B,/* 0xD0-0xD7 */
+	0x5580,0x55A7,0x557C,0x558A,0x559D,0x5598,0x5582,0x559C,/* 0xD8-0xDF */
+	0x55AA,0x5594,0xF90B,0x558B,0x5583,0x55B3,0x55AE,0x559F,/* 0xE0-0xE7 */
+	0x553E,0x55B2,0x559A,0x55BB,0x55AC,0x55B1,0x557E,0x5589,/* 0xE8-0xEF */
+	0x55AB,0x5599,0x570D,0x582F,0x582A,0x5834,0x5824,0x5830,/* 0xF0-0xF7 */
+	0x5831,0x5821,0x581D,0x5820,0x58F9,0x58FA,0x5960,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_B4[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x5A77,0x5A9A,0x5A7F,0x5A92,0x5A9B,0x5AA7,0x5B73,0x5B71,/* 0x40-0x47 */
+	0x5BD2,0x5BCC,0x5BD3,0x5BD0,0x5C0A,0x5C0B,0x5C31,0x5D4C,/* 0x48-0x4F */
+	0xF921,0x5D34,0x5D47,0x5DFD,0x5E45,0x5E3D,0x5E40,0x5E43,/* 0x50-0x57 */
+	0x5E7E,0xF928,0x5EC1,0x5EC2,0x5EC4,0x5F3C,0x5F6D,0xF966,/* 0x58-0x5F */
+	0x5FAA,0x5FA8,0x60D1,0xF9B9,0x60B2,0x60B6,0x60E0,0x611C,/* 0x60-0x67 */
+	0x6123,0x60FA,0x6115,0x60F0,0x60FB,0x60F4,0x6168,0x60F1,/* 0x68-0x6F */
+	0x610E,0x60F6,0x6109,0x6100,0x6112,0x621F,0x6249,0x63A3,/* 0x70-0x77 */
+	0x638C,0x63CF,0x63C0,0x63E9,0x63C9,0x63C6,0x63CD,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x63D2,0x63E3,0x63D0,0x63E1,0x63D6,0x63ED,0x63EE,/* 0xA0-0xA7 */
+	0x6376,0x63F4,0x63EA,0x63DB,0x6452,0x63DA,0x63F9,0x655E,/* 0xA8-0xAF */
+	0x6566,0x6562,0x6563,0x6591,0x6590,0x65AF,0x666E,0x6670,/* 0xB0-0xB7 */
+	0xFA12,0x6676,0x666F,0x6691,0x667A,0x667E,0x6677,0x66FE,/* 0xB8-0xBF */
+	0x66FF,0x671F,0x671D,0x68FA,0x68D5,0x68E0,0x68D8,0x68D7,/* 0xC0-0xC7 */
+	0x6905,0x68DF,0x68F5,0x68EE,0x68E7,0x68F9,0x68D2,0x68F2,/* 0xC8-0xCF */
+	0x68E3,0x68CB,0x68CD,0x690D,0x6912,0x690E,0x68C9,0x68DA,/* 0xD0-0xD7 */
+	0x696E,0x68FB,0x6B3E,0x6B3A,0x6B3D,0x6B98,0x6B96,0x6BBC,/* 0xD8-0xDF */
+	0x6BEF,0x6C2E,0x6C2F,0x6C2C,0x6E2F,0x6E38,0x6E54,0x6E21,/* 0xE0-0xE7 */
+	0x6E32,0x6E67,0x6E4A,0x6E20,0x6E25,0x6E23,0x6E1B,0x6E5B,/* 0xE8-0xEF */
+	0x6E58,0x6E24,0x6E56,0x6E6E,0x6E2D,0x6E26,0x6E6F,0x6E34,/* 0xF0-0xF7 */
+	0x6E4D,0x6E3A,0x6E2C,0x6E43,0x6E1D,0x6E3E,0x6ECB,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_B5[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6E89,0x6E19,0x6E4E,0x6E63,0x6E44,0x6E72,0x6E69,0x6E5F,/* 0x40-0x47 */
+	0x7119,0x711A,0x7126,0x7130,0x7121,0x7136,0x716E,0x711C,/* 0x48-0x4F */
+	0x724C,0x7284,0x7280,0x7336,0x7325,0x7334,0x7329,0x743A,/* 0x50-0x57 */
+	0x742A,0x7433,0x7422,0x7425,0x7435,0x7436,0x7434,0x742F,/* 0x58-0x5F */
+	0x741B,0x7426,0x7428,0x7525,0x7526,0x756B,0x756A,0xF9E5,/* 0x60-0x67 */
+	0x75DB,0x75E3,0x75D9,0x75D8,0x75DE,0x75E0,0x767B,0x767C,/* 0x68-0x6F */
+	0x7696,0x7693,0x76B4,0x76DC,0x774F,0x77ED,0x785D,0x786C,/* 0x70-0x77 */
+	0x786F,0x7A0D,0x7A08,0x7A0B,0x7A05,0x7A00,0x7A98,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x7A97,0x7A96,0x7AE5,0x7AE3,0x7B49,0x7B56,0x7B46,/* 0xA0-0xA7 */
+	0x7B50,0x7B52,0x7B54,0x7B4D,0x7B4B,0x7B4F,0x7B51,0x7C9F,/* 0xA8-0xAF */
+	0x7CA5,0x7D5E,0x7D50,0x7D68,0x7D55,0x7D2B,0x7D6E,0x7D72,/* 0xB0-0xB7 */
+	0x7D61,0x7D66,0x7D62,0x7D70,0x7D73,0x5584,0x7FD4,0x7FD5,/* 0xB8-0xBF */
+	0x800B,0x8052,0x8085,0x8155,0x8154,0x814B,0x8151,0x814E,/* 0xC0-0xC7 */
+	0x8139,0x8146,0x813E,0x814C,0x8153,0x8174,0x8212,0x821C,/* 0xC8-0xCF */
+	0x83E9,0x8403,0x83F8,0x840D,0x83E0,0x83C5,0x840B,0x83C1,/* 0xD0-0xD7 */
+	0x83EF,0xF958,0x83F4,0x8457,0x840A,0x83F0,0x840C,0x83CC,/* 0xD8-0xDF */
+	0x83FD,0x83F2,0x83CA,0x8438,0x840E,0x8404,0x83DC,0x8407,/* 0xE0-0xE7 */
+	0x83D4,0x83DF,0x865B,0x86DF,0x86D9,0x86ED,0x86D4,0x86DB,/* 0xE8-0xEF */
+	0x86E4,0x86D0,0x86DE,0x8857,0x88C1,0xF9A0,0x88B1,0x8983,/* 0xF0-0xF7 */
+	0x8996,0x8A3B,0x8A60,0x8A55,0x8A5E,0x8A3C,0x8A41,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_B6[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8A54,0x8A5B,0x8A50,0x8A46,0x8A34,0x8A3A,0x8A36,0x8A56,/* 0x40-0x47 */
+	0x8C61,0x8C82,0x8CAF,0x8CBC,0x8CB3,0x8CBD,0x8CC1,0x8CBB,/* 0x48-0x4F */
+	0x8CC0,0x8CB4,0x8CB7,0x8CB6,0x8CBF,0x8CB8,0x8D8A,0x8D85,/* 0x50-0x57 */
+	0x8D81,0x8DCE,0x8DDD,0x8DCB,0x8DDA,0x8DD1,0x8DCC,0x8DDB,/* 0x58-0x5F */
+	0x8DC6,0x8EFB,0x8EF8,0x8EFC,0x8F9C,0x902E,0x9035,0x9031,/* 0x60-0x67 */
+	0xFA25,0x9032,0x9036,0x9102,0x90F5,0x9109,0x90FE,0x9163,/* 0x68-0x6F */
+	0x9165,0xF97E,0x9214,0x9215,0x9223,0x9209,0x921E,0x920D,/* 0x70-0x77 */
+	0x9210,0x9207,0x9211,0x9594,0x958F,0x958B,0x9591,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x9593,0x9592,0x958E,0x968A,0x968E,0x968B,0x967D,/* 0xA0-0xA7 */
+	0x9685,0xF9DC,0x968D,0x9672,0x9684,0x96C1,0x96C5,0x96C4,/* 0xA8-0xAF */
+	0x96C6,0x96C7,0x96EF,0x96F2,0x97CC,0x9805,0x9806,0x9808,/* 0xB0-0xB7 */
+	0x98E7,0x98EA,0xFA2A,0x98E9,0x98F2,0x98ED,0x99AE,0x99AD,/* 0xB8-0xBF */
+	0x9EC3,0x9ECD,0x9ED1,0xF91B,0x50AD,0x50B5,0x50B2,0x50B3,/* 0xC0-0xC7 */
+	0x50C5,0x50BE,0x50AC,0x50B7,0x50BB,0x50AF,0x50C7,0x527F,/* 0xC8-0xCF */
+	0x5277,0x527D,0x52DF,0x52E6,0x52E4,0x52E2,0x52E3,0x532F,/* 0xD0-0xD7 */
+	0x55DF,0x55E8,0x55D3,0x55E6,0x55CE,0x55DC,0x55C7,0x55D1,/* 0xD8-0xDF */
+	0x55E3,0x55E4,0x55EF,0x55DA,0x55E1,0x55C5,0x55C6,0x55E5,/* 0xE0-0xE7 */
+	0x55C9,0x5712,0x5713,0xF96C,0x5851,0x5858,0x5857,0xFA10,/* 0xE8-0xEF */
+	0x5854,0x586B,0x584C,0x586D,0x584A,0x5862,0x5852,0x584B,/* 0xF0-0xF7 */
+	0x5967,0x5AC1,0x5AC9,0x5ACC,0x5ABE,0x5ABD,0x5ABC,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_B7[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x5AB3,0x5AC2,0x5AB2,0x5D69,0x5D6F,0x5E4C,0x5E79,0xF9A2,/* 0x40-0x47 */
+	0x5EC8,0x5F12,0x5F59,0x5FAC,0x5FAE,0x611A,0x610F,0x6148,/* 0x48-0x4F */
+	0x611F,0x60F3,0x611B,0x60F9,0x6101,0x6108,0x614E,0x614C,/* 0x50-0x57 */
+	0xF9D9,0x614D,0x613E,0x6134,0x6127,0x610D,0x6106,0x6137,/* 0x58-0x5F */
+	0x6221,0x6222,0x6413,0x643E,0x641E,0x642A,0x642D,0x643D,/* 0x60-0x67 */
+	0x642C,0x640F,0x641C,0x6414,0x640D,0x6436,0x6416,0x6417,/* 0x68-0x6F */
+	0x6406,0x656C,0x659F,0x65B0,0x6697,0x6689,0x6687,0xF9C5,/* 0x70-0x77 */
+	0x6696,0x6684,0x6698,0x668D,0x6703,0x6994,0x696D,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x695A,0x6977,0x6960,0x6954,0x6975,0x6930,0x6982,/* 0xA0-0xA7 */
+	0x694A,0x6968,0x696B,0x695E,0x6953,0x6979,0x6986,0x695D,/* 0xA8-0xAF */
+	0x6963,0x695B,0x6B47,0x6B72,0x6BC0,0x6BBF,0x6BD3,0x6BFD,/* 0xB0-0xB7 */
+	0x6EA2,0x6EAF,0x6ED3,0x6EB6,0x6EC2,0x6E90,0x6E9D,0x6EC7,/* 0xB8-0xBF */
+	0x6EC5,0x6EA5,0x6E98,0x6EBC,0xF9EC,0x6EAB,0xF904,0x6E96,/* 0xC0-0xC7 */
+	0xF9CB,0x6EC4,0x6ED4,0x6EAA,0x6EA7,0x6EB4,0x714E,0x7159,/* 0xC8-0xCF */
+	0x7169,0x7164,0xF993,0x7167,0x715C,0x716C,0x7166,0x714C,/* 0xD0-0xD7 */
+	0x7165,0x715E,0x7146,0x7168,0x7156,0x723A,0x7252,0x7337,/* 0xD8-0xDF */
+	0x7345,0x733F,0x733E,0x746F,0x745A,0x7455,0x745F,0x745E,/* 0xE0-0xE7 */
+	0x7441,0x743F,0x7459,0x745B,0x745C,0x7576,0x7578,0x7600,/* 0xE8-0xEF */
+	0x75F0,0x7601,0x75F2,0x75F1,0x75FA,0x75FF,0x75F4,0x75F3,/* 0xF0-0xF7 */
+	0x76DE,0x76DF,0x775B,0x776B,0x7766,0x775E,0x7763,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_B8[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7779,0x776A,0x776C,0x775C,0x7765,0x7768,0x7762,0x77EE,/* 0x40-0x47 */
+	0x788E,0x78B0,0x7897,0x7898,0xF93B,0x7889,0x787C,0x7891,/* 0x48-0x4F */
+	0x7893,0x787F,0x797A,0xF93C,0x7981,0x842C,0x79BD,0xF956,/* 0x50-0x57 */
+	0x7A1A,0x7A20,0x7A14,0x7A1F,0x7A1E,0x7A9F,0x7AA0,0x7B77,/* 0x58-0x5F */
+	0x7BC0,0x7B60,0x7B6E,0x7B67,0x7CB1,0x7CB3,0x7CB5,0x7D93,/* 0x60-0x67 */
+	0x7D79,0x7D91,0x7D81,0x7D8F,0x7D5B,0x7F6E,0x7F69,0x7F6A,/* 0x68-0x6F */
+	0x7F72,0x7FA9,0x7FA8,0x7FA4,0x8056,0x8058,0x8086,0x8084,/* 0x70-0x77 */
+	0x8171,0x8170,0x8178,0x8165,0x816E,0x8173,0x816B,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x8179,0x817A,0x8166,0x8205,0x8247,0x8482,0x8477,/* 0xA0-0xA7 */
+	0xF918,0x8431,0x8475,0x8466,0x846B,0xF96E,0x846C,0x845B,/* 0xA8-0xAF */
+	0x843C,0x8435,0x8461,0x8463,0x8469,0x846D,0x8446,0x865E,/* 0xB0-0xB7 */
+	0xF936,0x865F,0x86F9,0x8713,0x8708,0x8707,0x8700,0x86FE,/* 0xB8-0xBF */
+	0x86FB,0x8702,0x8703,0x8706,0x870A,0x8859,0x88DF,0x88D4,/* 0xC0-0xC7 */
+	0x88D9,0x88DC,0x88D8,0x88DD,0xF9E8,0x88CA,0x88D5,0x88D2,/* 0xC8-0xCF */
+	0x899C,0x89E3,0x8A6B,0x8A72,0x8A73,0x8A66,0x8A69,0x8A70,/* 0xD0-0xD7 */
+	0x8A87,0x8A7C,0x8A63,0x8AA0,0x8A71,0x8A85,0x8A6D,0x8A62,/* 0xD8-0xDF */
+	0x8A6E,0x8A6C,0x8A79,0x8A7B,0x8A3E,0x8A68,0x8C62,0x8C8A,/* 0xE0-0xE7 */
+	0x8C89,0x8CCA,0x8CC7,0xF903,0x8CC4,0x8CB2,0x8CC3,0xF948,/* 0xE8-0xEF */
+	0x8CC5,0x8DE1,0x8DDF,0x8DE8,0xF937,0x8DF3,0x8DFA,0x8DEA,/* 0xF0-0xF7 */
+	0x8DE4,0x8DE6,0x8EB2,0x8F03,0x8F09,0x8EFE,0x8F0A,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_B9[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8F9F,0x8FB2,0x904B,0x904A,0x9053,0x9042,0x9054,0x903C,/* 0x40-0x47 */
+	0x9055,0x9050,0x9047,0x904F,0x904E,0x904D,0x9051,0x903E,/* 0x48-0x4F */
+	0x9041,0x9112,0x9117,0x916C,0xF919,0x9169,0x91C9,0x9237,/* 0x50-0x57 */
+	0x9257,0x9238,0x923D,0x9240,0x923E,0x925B,0x924B,0x9264,/* 0x58-0x5F */
+	0x9251,0xF9B1,0x9249,0x924D,0x9245,0x9239,0x923F,0x925A,/* 0x60-0x67 */
+	0x9598,0x9698,0x9694,0x9695,0x96CD,0x96CB,0x96C9,0x96CA,/* 0x68-0x6F */
+	0xF949,0x96FB,0x96F9,0xF9B2,0xFA1C,0x9774,0x9776,0x9810,/* 0x70-0x77 */
+	0x9811,0x9813,0x980A,0x9812,0x980C,0xFA2B,0x98F4,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x98FD,0x98FE,0x99B3,0x99B1,0x99B4,0x9AE1,0x9CE9,/* 0xA0-0xA7 */
+	0x9E82,0x9F0E,0x9F13,0x9F20,0x50E7,0x50EE,0x50E5,0x50D6,/* 0xA8-0xAF */
+	0x50ED,0xF9BB,0x50D5,0x50CF,0x50D1,0x50F1,0x50CE,0x50E9,/* 0xB0-0xB7 */
+	0x5162,0x51F3,0x5283,0x5282,0x5331,0x53AD,0x55FE,0x5600,/* 0xB8-0xBF */
+	0x561B,0x5617,0x55FD,0x5614,0x5606,0x5609,0x560D,0x560E,/* 0xC0-0xC7 */
+	0x55F7,0x5616,0x561F,0x5608,0x5610,0x55F6,0x5718,0x5716,/* 0xC8-0xCF */
+	0x5875,0x587E,0x5883,0x5893,0x588A,0x5879,0x5885,0x587D,/* 0xD0-0xD7 */
+	0x58FD,0x5925,0x5922,0x5924,0x596A,0x5969,0x5AE1,0x5AE6,/* 0xD8-0xDF */
+	0x5AE9,0x5AD7,0x5AD6,0x5AD8,0x5AE3,0x5B75,0x5BDE,0xF9AA,/* 0xE0-0xE7 */
+	0x5BE1,0x5BE5,0x5BE6,0x5BE8,0x5BE2,0x5BE4,0x5BDF,0x5C0D,/* 0xE8-0xEF */
+	0xF94B,0x5D84,0x5D87,0x5E5B,0x5E63,0x5E55,0x5E57,0x5E54,/* 0xF0-0xF7 */
+	0xFA0B,0x5ED6,0x5F0A,0x5F46,0x5F70,0x5FB9,0x6147,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_BA[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x613F,0x614B,0x6177,0x6162,0x6163,0x615F,0x615A,0x6158,/* 0x40-0x47 */
+	0x6175,0x622A,0x6487,0x6458,0x6454,0x64A4,0x6478,0x645F,/* 0x48-0x4F */
+	0x647A,0x6451,0x6467,0x6434,0x646D,0x647B,0x6572,0x65A1,/* 0x50-0x57 */
+	0x65D7,0x65D6,0x66A2,0x66A8,0x669D,0x699C,0x69A8,0x6995,/* 0x58-0x5F */
+	0x69C1,0x69AE,0x69D3,0x69CB,0x699B,0x69B7,0x69BB,0x69AB,/* 0x60-0x67 */
+	0x69B4,0x69D0,0x69CD,0x69AD,0x69CC,0x69A6,0x69C3,0x69A3,/* 0x68-0x6F */
+	0x6B49,0x6B4C,0x6C33,0x6F33,0x6F14,0x6EFE,0x6F13,0x6EF4,/* 0x70-0x77 */
+	0x6F29,0x6F3E,0x6F20,0x6F2C,0xF94E,0x6F02,0x6F22,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x6EFF,0x6EEF,0x6F06,0x6F31,0x6F38,0x6F32,0xF992,/* 0xA0-0xA7 */
+	0x6F15,0x6F2B,0x6F2F,0x6F88,0x6F2A,0x6EEC,0x6F01,0x6EF2,/* 0xA8-0xAF */
+	0x6ECC,0x6EF7,0x7194,0x7199,0x717D,0x718A,0x7184,0x7192,/* 0xB0-0xB7 */
+	0x723E,0x7292,0x7296,0x7344,0x7350,0x7464,0x7463,0x746A,/* 0xB8-0xBF */
+	0x7470,0x746D,0x7504,0x7591,0x7627,0x760D,0x760B,0x7609,/* 0xC0-0xC7 */
+	0x7613,0x76E1,0x76E3,0x7784,0x777D,0x777F,0x7761,0x78C1,/* 0xC8-0xCF */
+	0x789F,0x78A7,0x78B3,0x78A9,0x78A3,0x798E,0xFA1B,0x798D,/* 0xD0-0xD7 */
+	0x7A2E,0x7A31,0x7AAA,0x7AA9,0x7AED,0x7AEF,0x7BA1,0x7B95,/* 0xD8-0xDF */
+	0x7B8B,0x7B75,0x7B97,0x7B9D,0x7B94,0x7B8F,0x7BB8,0x7B87,/* 0xE0-0xE7 */
+	0x7B84,0x7CB9,0x7CBD,0xFA1D,0x7DBB,0x7DB0,0x7D9C,0x7DBD,/* 0xE8-0xEF */
+	0xF957,0xF93D,0x7DCA,0x7DB4,0x7DB2,0x7DB1,0x7DBA,0x7DA2,/* 0xF0-0xF7 */
+	0x7DBF,0x7DB5,0x7DB8,0x7DAD,0x7DD2,0x7DC7,0x7DAC,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_BB[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7F70,0x7FE0,0x7FE1,0x7FDF,0x805E,0x805A,0x8087,0x8150,/* 0x40-0x47 */
+	0x8180,0x818F,0x8188,0x818A,0x817F,0x8182,0x81E7,0x81FA,/* 0x48-0x4F */
+	0x8207,0x8214,0x821E,0x824B,0x84C9,0x84BF,0x84C6,0x84C4,/* 0x50-0x57 */
+	0x8499,0x849E,0x84B2,0x849C,0x84CB,0x84B8,0x84C0,0x84D3,/* 0x58-0x5F */
+	0x8490,0x84BC,0x84D1,0x84CA,0x873F,0x871C,0x873B,0x8722,/* 0x60-0x67 */
+	0x8725,0x8734,0x8718,0x8755,0x8737,0x8729,0x88F3,0x8902,/* 0x68-0x6F */
+	0x88F4,0x88F9,0xF912,0x88FD,0x88E8,0x891A,0x88EF,0x8AA6,/* 0x70-0x77 */
+	0x8A8C,0x8A9E,0x8AA3,0x8A8D,0x8AA1,0x8A93,0x8AA4,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0xF9A1,0x8AA5,0x8AA8,0x8A98,0x8A91,0x8A9A,0x8AA7,/* 0xA0-0xA7 */
+	0x8C6A,0x8C8D,0x8C8C,0x8CD3,0x8CD1,0x8CD2,0x8D6B,0x8D99,/* 0xA8-0xAF */
+	0x8D95,0x8DFC,0x8F14,0x8F12,0x8F15,0x8F13,0x8FA3,0x9060,/* 0xB0-0xB7 */
+	0x9058,0x905C,0x9063,0x9059,0x905E,0x9062,0x905D,0x905B,/* 0xB8-0xBF */
+	0x9119,0x9118,0x911E,0x9175,0x9178,0x9177,0x9174,0x9278,/* 0xC0-0xC7 */
+	0x9280,0x9285,0x9298,0x9296,0x927B,0x9293,0x929C,0x92A8,/* 0xC8-0xCF */
+	0x927C,0x9291,0x95A1,0x95A8,0x95A9,0x95A3,0x95A5,0x95A4,/* 0xD0-0xD7 */
+	0x9699,0x969C,0x969B,0x96CC,0x96D2,0x9700,0x977C,0x9785,/* 0xD8-0xDF */
+	0x97F6,0x9817,0xF9B4,0x98AF,0x98B1,0x9903,0x9905,0x990C,/* 0xE0-0xE7 */
+	0x9909,0x99C1,0x9AAF,0x9AB0,0x9AE6,0x9B41,0x9B42,0x9CF4,/* 0xE8-0xEF */
+	0x9CF6,0x9CF3,0x9EBC,0x9F3B,0x9F4A,0x5104,0x5100,0x50FB,/* 0xF0-0xF7 */
+	0x50F5,0x50F9,0x5102,0x5108,0x5109,0x5105,0xF954,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_BC[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x5287,0x5288,0xF9C7,0x528D,0x528A,0x52F0,0x53B2,0x562E,/* 0x40-0x47 */
+	0x563B,0x5639,0x5632,0x563F,0x5634,0x5629,0x5653,0x564E,/* 0x48-0x4F */
+	0x5657,0x5674,0x5636,0x562F,0x5630,0x5880,0x589F,0x589E,/* 0x50-0x57 */
+	0x58B3,0x589C,0x58AE,0x58A9,0x58A6,0x596D,0x5B09,0x5AFB,/* 0x58-0x5F */
+	0x5B0B,0x5AF5,0x5B0C,0x5B08,0xF9BC,0x5BEC,0x5BE9,0x5BEB,/* 0x60-0x67 */
+	0x5C64,0xF9DF,0x5D9D,0x5D94,0x5E62,0x5E5F,0x5E61,0x5EE2,/* 0x68-0x6F */
+	0x5EDA,0x5EDF,0x5EDD,0x5EE3,0x5EE0,0x5F48,0x5F71,0x5FB7,/* 0x70-0x77 */
+	0x5FB5,0x6176,0x6167,0x616E,0x615D,0x6155,0x6182,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x617C,0x6170,0x616B,0x617E,0x61A7,0xF98F,0x61AB,/* 0xA0-0xA7 */
+	0x618E,0x61AC,0x619A,0x61A4,0x6194,0x61AE,0xF9D2,0x6469,/* 0xA8-0xAF */
+	0x646F,0x6479,0x649E,0x64B2,0x6488,0x6490,0x64B0,0x64A5,/* 0xB0-0xB7 */
+	0x6493,0x6495,0x64A9,0x6492,0x64AE,0x64AD,0x64AB,0xF991,/* 0xB8-0xBF */
+	0x64AC,0x6499,0x64A2,0x64B3,0x6575,0x6577,0xF969,0x66AE,/* 0xC0-0xC7 */
+	0x66AB,0xFA06,0x66B1,0x6A23,0x6A1F,0x69E8,0x6A01,0x6A1E,/* 0xC8-0xCF */
+	0x6A19,0x69FD,0x6A21,0xF94C,0x6A0A,0x69F3,0xF9BF,0x6A05,/* 0xD0-0xD7 */
+	0x69ED,0x6A11,0x6B50,0x6B4E,0x6BA4,0x6BC5,0x6BC6,0x6F3F,/* 0xD8-0xDF */
+	0x6F7C,0x6F84,0x6F51,0x6F66,0x6F54,0x6F86,0x6F6D,0x6F5B,/* 0xE0-0xE7 */
+	0x6F78,0x6F6E,0x6F8E,0x6F7A,0x6F70,0x6F64,0x6F97,0x6F58,/* 0xE8-0xEF */
+	0x6ED5,0x6F6F,0x6F60,0x6F5F,0x719F,0x71AC,0x71B1,0x71A8,/* 0xF0-0xF7 */
+	0x7256,0x729B,0x734E,0x7357,0xF9AE,0x748B,0x7483,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_BD[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x747E,0x7480,0x757F,0x7620,0x7629,0x761F,0x7624,0x7626,/* 0x40-0x47 */
+	0x7621,0x7622,0x769A,0x76BA,0x76E4,0x778E,0x7787,0x778C,/* 0x48-0x4F */
+	0x7791,0x778B,0x78CB,0x78C5,0x78BA,0xF947,0x78BE,0x78D5,/* 0x50-0x57 */
+	0x78BC,0x78D0,0x7A3F,0x7A3C,0x7A40,0x7A3D,0x7A37,0x7A3B,/* 0x58-0x5F */
+	0x7AAF,0x7AAE,0x7BAD,0x7BB1,0x7BC4,0x7BB4,0x7BC6,0x7BC7,/* 0x60-0x67 */
+	0x7BC1,0x7BA0,0x7BCC,0x7CCA,0x7DE0,0xF996,0x7DEF,0x7DFB,/* 0x68-0x6F */
+	0x7DD8,0x7DEC,0x7DDD,0x7DE8,0x7DE3,0x7DDA,0x7DDE,0x7DE9,/* 0x70-0x77 */
+	0x7D9E,0x7DD9,0x7DF2,0x7DF9,0x7F75,0x7F77,0x7FAF,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x7FE9,0x8026,0x819B,0x819C,0x819D,0x81A0,0x819A,/* 0xA0-0xA7 */
+	0x8198,0x8517,0x853D,0x851A,0xF999,0x852C,0x852D,0x8513,/* 0xA8-0xAF */
+	0x8511,0x8523,0x8521,0x8514,0x84EC,0x8525,0x84FF,0x8506,/* 0xB0-0xB7 */
+	0x8782,0x8774,0x8776,0x8760,0x8766,0x8778,0x8768,0x8759,/* 0xB8-0xBF */
+	0x8757,0x874C,0x8753,0x885B,0x885D,0x8910,0x8907,0x8912,/* 0xC0-0xC7 */
+	0x8913,0x8915,0x890A,0x8ABC,0xF97D,0x8AC7,0x8AC4,0x8A95,/* 0xC8-0xCF */
+	0x8ACB,0xFA22,0x8AB2,0x8AC9,0x8AC2,0x8ABF,0x8AB0,0xF941,/* 0xD0-0xD7 */
+	0x8ACD,0x8AB6,0x8AB9,0x8ADB,0x8C4C,0x8C4E,0xFA16,0x8CE0,/* 0xD8-0xDF */
+	0x8CDE,0x8CE6,0x8CE4,0x8CEC,0x8CED,0x8CE2,0x8CE3,0x8CDC,/* 0xE0-0xE7 */
+	0x8CEA,0x8CE1,0x8D6D,0x8D9F,0x8DA3,0x8E2B,0x8E10,0x8E1D,/* 0xE8-0xEF */
+	0x8E22,0x8E0F,0x8E29,0x8E1F,0x8E21,0x8E1E,0x8EBA,0x8F1D,/* 0xF0-0xF7 */
+	0x8F1B,0x8F1F,0x8F29,0xF998,0xF9D7,0x8F1C,0x8F1E,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_BE[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8F25,0x9069,0x906E,0x9068,0x906D,0x9077,0x9130,0x912D,/* 0x40-0x47 */
+	0x9127,0x9131,0x9187,0x9189,0x918B,0x9183,0x92C5,0x92BB,/* 0x48-0x4F */
+	0x92B7,0x92EA,0x92AC,0x92E4,0x92C1,0x92B3,0x92BC,0x92D2,/* 0x50-0x57 */
+	0x92C7,0x92F0,0x92B2,0xF986,0x95B1,0x9704,0x9706,0x9707,/* 0x58-0x5F */
+	0x9709,0x9760,0x978D,0x978B,0x978F,0x9821,0x982B,0x981C,/* 0x60-0x67 */
+	0x98B3,0x990A,0x9913,0x9912,0x9918,0x99DD,0x99D0,0x99DF,/* 0x68-0x6F */
+	0x99DB,0x99D1,0x99D5,0x99D2,0x99D9,0x9AB7,0x9AEE,0x9AEF,/* 0x70-0x77 */
+	0x9B27,0x9B45,0x9B44,0x9B77,0xF939,0x9D06,0x9D09,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x9D03,0x9EA9,0x9EBE,0xF989,0x58A8,0x9F52,0x5112,/* 0xA0-0xA7 */
+	0x5118,0x5114,0x5110,0x5115,0x5180,0x51AA,0x51DD,0x5291,/* 0xA8-0xAF */
+	0x5293,0x52F3,0x5659,0x566B,0x5679,0x5669,0x5664,0x5678,/* 0xB0-0xB7 */
+	0x566A,0x5668,0x5665,0x5671,0x566F,0x566C,0x5662,0x5676,/* 0xB8-0xBF */
+	0x58C1,0x58BE,0x58C7,0x58C5,0x596E,0x5B1D,0x5B34,0x5B78,/* 0xC0-0xC7 */
+	0x5BF0,0x5C0E,0x5F4A,0x61B2,0x6191,0x61A9,0x618A,0x61CD,/* 0xC8-0xCF */
+	0x61B6,0x61BE,0x61CA,0x61C8,0x6230,0x64C5,0x64C1,0x64CB,/* 0xD0-0xD7 */
+	0x64BB,0x64BC,0x64DA,0xF930,0x64C7,0x64C2,0x64CD,0x64BF,/* 0xD8-0xDF */
+	0x64D2,0x64D4,0x64BE,0x6574,0xF98B,0x66C9,0x66B9,0x66C4,/* 0xE0-0xE7 */
+	0x66C7,0x66B8,0x6A3D,0x6A38,0x6A3A,0x6A59,0x6A6B,0x6A58,/* 0xE8-0xEF */
+	0x6A39,0x6A44,0x6A62,0x6A61,0x6A4B,0x6A47,0x6A35,0x6A5F,/* 0xF0-0xF7 */
+	0x6A48,0x6B59,0xF98C,0x6C05,0x6FC2,0x6FB1,0x6FA1,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_BF[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6FC3,0x6FA4,0x6FC1,0x6FA7,0x6FB3,0x6FC0,0x6FB9,0x6FB6,/* 0x40-0x47 */
+	0x6FA6,0x6FA0,0x6FB4,0x71BE,0x71C9,0xF9EE,0x71D2,0x71C8,/* 0x48-0x4F */
+	0x71D5,0x71B9,0xF9C0,0x71D9,0x71DC,0x71C3,0x71C4,0x7368,/* 0x50-0x57 */
+	0x749C,0x74A3,0xF9EF,0x749F,0x749E,0x74E2,0x750C,0x750D,/* 0x58-0x5F */
+	0x7634,0x7638,0x763A,0xF933,0x76E5,0x77A0,0x779E,0x779F,/* 0x60-0x67 */
+	0x77A5,0x78E8,0x78DA,0x78EC,0x78E7,0x79A6,0x7A4D,0x7A4E,/* 0x68-0x6F */
+	0x7A46,0x7A4C,0x7A4B,0x7ABA,0x7BD9,0x7C11,0x7BC9,0x7BE4,/* 0x70-0x77 */
+	0x7BDB,0x7BE1,0x7BE9,0x7BE6,0x7CD5,0xFA03,0x7E0A,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x7E11,0x7E08,0x7E1B,0x7E23,0x7E1E,0x7E1D,0x7E09,/* 0xA0-0xA7 */
+	0x7E10,0xF9E6,0x7FB2,0x7FF0,0x7FF1,0x7FEE,0x8028,0x81B3,/* 0xA8-0xAF */
+	0x81A9,0x81A8,0x81FB,0x8208,0x8258,0x8259,0x854A,0x8559,/* 0xB0-0xB7 */
+	0x8548,0x8568,0x8569,0x8543,0x8549,0x856D,0x856A,0x855E,/* 0xB8-0xBF */
+	0x8783,0x879F,0x879E,0x87A2,0x878D,0x8861,0x892A,0x8932,/* 0xC0-0xC7 */
+	0x8925,0x892B,0x8921,0x89AA,0x89A6,0x8AE6,0x8AFA,0x8AEB,/* 0xC8-0xCF */
+	0x8AF1,0x8B00,0x8ADC,0x8AE7,0x8AEE,0xF95D,0x8B01,0x8B02,/* 0xD0-0xD7 */
+	0x8AF7,0x8AED,0x8AF3,0x8AF6,0x8AFC,0x8C6B,0x8C6D,0x8C93,/* 0xD8-0xDF */
+	0x8CF4,0x8E44,0x8E31,0x8E34,0x8E42,0x8E39,0x8E35,0xFA07,/* 0xE0-0xE7 */
+	0x8F2F,0x8F38,0x8F33,0x8FA8,0x8FA6,0x9075,0x9074,0x9078,/* 0xE8-0xEF */
+	0x9072,0xF9C3,0x907A,0x9134,0x9192,0x9320,0x9336,0x92F8,/* 0xF0-0xF7 */
+	0x9333,0x932F,0x9322,0x92FC,0x932B,0xF93F,0x931A,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_C0[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x9310,0x9326,0x9321,0x9315,0x932E,0x9319,0x95BB,0x96A7,/* 0x40-0x47 */
+	0x96A8,0x96AA,0x96D5,0x970E,0x9711,0x9716,0x970D,0x9713,/* 0x48-0x4F */
+	0x970F,0x975B,0x975C,0x9766,0x9798,0x9830,0x9838,0x983B,/* 0x50-0x57 */
+	0x9837,0x982D,0x9839,0x9824,0x9910,0xFA2C,0x991E,0x991B,/* 0x58-0x5F */
+	0x9921,0x991A,0x99ED,0x99E2,0xF91A,0x9AB8,0x9ABC,0x9AFB,/* 0x60-0x67 */
+	0x9AED,0x9B28,0x9B91,0x9D15,0x9D23,0x9D26,0x9D28,0x9D12,/* 0x68-0x6F */
+	0x9D1B,0x9ED8,0x9ED4,0xF9C4,0xF908,0x512A,0x511F,0x5121,/* 0x70-0x77 */
+	0x5132,0xF97F,0x568E,0x5680,0x5690,0x5685,0x5687,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x568F,0x58D5,0x58D3,0x58D1,0x58CE,0x5B30,0x5B2A,/* 0xA0-0xA7 */
+	0x5B24,0x5B7A,0x5C37,0x5C68,0x5DBC,0xF9AB,0x5DBD,0x5DB8,/* 0xA8-0xAF */
+	0x5E6B,0x5F4C,0x5FBD,0x61C9,0x61C2,0x61C7,0x61E6,0x61CB,/* 0xB0-0xB7 */
+	0x6232,0x6234,0x64CE,0x64CA,0x64D8,0x64E0,0x64F0,0x64E6,/* 0xB8-0xBF */
+	0x64EC,0x64F1,0x64E2,0x64ED,0x6582,0x6583,0x66D9,0x66D6,/* 0xC0-0xC7 */
+	0x6A80,0x6A94,0x6A84,0x6AA2,0x6A9C,0x6ADB,0x6AA3,0x6A7E,/* 0xC8-0xCF */
+	0x6A97,0x6A90,0x6AA0,0x6B5C,0xF9A5,0x6BDA,0x6C08,0x6FD8,/* 0xD0-0xD7 */
+	0x6FF1,0x6FDF,0x6FE0,0x6FDB,0x6FE4,0xF922,0x6FEF,0x6F80,/* 0xD8-0xDF */
+	0x6FEC,0x6FE1,0x6FE9,0x6FD5,0x6FEE,0x6FF0,0x71E7,0x71DF,/* 0xE0-0xE7 */
+	0x71EE,0x71E6,0x71E5,0x71ED,0x71EC,0x71F4,0x71E0,0x7235,/* 0xE8-0xEF */
+	0x7246,0x7370,0x7372,0x74A9,0x74B0,0x74A6,0x74A8,0x7646,/* 0xF0-0xF7 */
+	0xF9C1,0x764C,0x76EA,0x77B3,0x77AA,0x77B0,0x77AC,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_C1[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x77A7,0x77AD,0x77EF,0x78F7,0x78FA,0x78F4,0x78EF,0x7901,/* 0x40-0x47 */
+	0x79A7,0x79AA,0x7A57,0x7ABF,0x7C07,0x7C0D,0x7BFE,0x7BF7,/* 0x48-0x4F */
+	0x7C0C,0x7BE0,0x7CE0,0x7CDC,0x7CDE,0x7CE2,0x7CDF,0x7CD9,/* 0x50-0x57 */
+	0x7CDD,0x7E2E,0x7E3E,0x7E46,0xF950,0x7E32,0x7E43,0x7E2B,/* 0x58-0x5F */
+	0x7E3D,0x7E31,0x7E45,0x7E41,0x7E34,0x7E39,0x7E48,0x7E35,/* 0x60-0x67 */
+	0x7E3F,0x7E2F,0x7F44,0x7FF3,0x7FFC,0x8071,0x8072,0x8070,/* 0x68-0x6F */
+	0xF997,0x8073,0x81C6,0x81C3,0x81BA,0x81C2,0x81C0,0x81BF,/* 0x70-0x77 */
+	0x81BD,0x81C9,0x81BE,0xF9F6,0x8209,0x8271,0x85AA,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x8584,0x857E,0x859C,0x8591,0x8594,0x85AF,0x859B,/* 0xA0-0xA7 */
+	0x8587,0x85A8,0x858A,0x8667,0x87C0,0x87D1,0x87B3,0x87D2,/* 0xA8-0xAF */
+	0x87C6,0x87AB,0x87BB,0xF911,0x87C8,0x87CB,0x893B,0x8936,/* 0xB0-0xB7 */
+	0x8944,0x8938,0x893D,0x89AC,0x8B0E,0x8B17,0x8B19,0x8B1B,/* 0xB8-0xBF */
+	0x8B0A,0x8B20,0x8B1D,0x8B04,0x8B10,0x8C41,0x8C3F,0x8C73,/* 0xC0-0xC7 */
+	0x8CFA,0x8CFD,0x8CFC,0x8CF8,0x8CFB,0x8DA8,0x8E49,0x8E4B,/* 0xC8-0xCF */
+	0x8E48,0x8E4A,0x8F44,0x8F3E,0x8F42,0x8F45,0x8F3F,0x907F,/* 0xD0-0xD7 */
+	0x907D,0x9084,0x9081,0x9082,0x9080,0x9139,0x91A3,0x919E,/* 0xD8-0xDF */
+	0x919C,0x934D,0x9382,0x9328,0x9375,0xF99B,0x9365,0x934B,/* 0xE0-0xE7 */
+	0x9318,0x937E,0x936C,0x935B,0x9370,0x935A,0x9354,0x95CA,/* 0xE8-0xEF */
+	0x95CB,0x95CC,0x95C8,0x95C6,0x96B1,0xF9B8,0x96D6,0x971C,/* 0xF0-0xF7 */
+	0x971E,0x97A0,0x97D3,0x9846,0x98B6,0x9935,0x9A01,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_C2[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x99FF,0x9BAE,0x9BAB,0x9BAA,0x9BAD,0x9D3B,0x9D3F,0x9E8B,/* 0x40-0x47 */
+	0x9ECF,0x9EDE,0x9EDC,0x9EDD,0x9EDB,0x9F3E,0x9F4B,0x53E2,/* 0x48-0x4F */
+	0x5695,0x56AE,0x58D9,0xF94A,0x5B38,0x5F5D,0x61E3,0x6233,/* 0x50-0x57 */
+	0x64F4,0x64F2,0x64FE,0x6506,0x64FA,0x64FB,0x64F7,0x65B7,/* 0x58-0x5F */
+	0x66DC,0x6726,0x6AB3,0x6AAC,0x6AC3,0x6ABB,0x6AB8,0x6AC2,/* 0x60-0x67 */
+	0x6AAE,0x6AAF,0x6B5F,0x6B78,0x6BAF,0x7009,0x700B,0xF984,/* 0x68-0x6F */
+	0x7006,0x6FFA,0x7011,0x700F,0x71FB,0x71FC,0x71FE,0x71F8,/* 0x70-0x77 */
+	0x7377,0xF9A7,0x74A7,0x74BF,0x7515,0x7656,0x7658,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x7652,0x77BD,0x77BF,0x77BB,0x77BC,0x790E,0xF9B6,/* 0xA0-0xA7 */
+	0x7A61,0x7A62,0x7A60,0x7AC4,0x7AC5,0x7C2B,0x7C27,0x7C2A,/* 0xA8-0xAF */
+	0x7C1E,0x7C23,0x7C21,0xF97B,0x7E54,0x7E55,0x7E5E,0x7E5A,/* 0xB0-0xB7 */
+	0x7E61,0x7E52,0x7E59,0x7F48,0x7FF9,0x7FFB,0x8077,0x8076,/* 0xB8-0xBF */
+	0x81CD,0x81CF,0x820A,0x85CF,0x85A9,0xF923,0x85D0,0x85C9,/* 0xC0-0xC7 */
+	0x85B0,0x85BA,0x85B9,0x85A6,0x87EF,0x87EC,0x87F2,0x87E0,/* 0xC8-0xCF */
+	0x8986,0x89B2,0x89F4,0x8B28,0x8B39,0x8B2C,0x8B2B,0x8C50,/* 0xD0-0xD7 */
+	0x8D05,0x8E59,0x8E63,0x8E66,0x8E64,0x8E5F,0x8E55,0x8EC0,/* 0xD8-0xDF */
+	0x8F49,0x8F4D,0x9087,0x9083,0x9088,0x91AB,0x91AC,0x91D0,/* 0xE0-0xE7 */
+	0x9394,0x938A,0x9396,0x93A2,0x93B3,0x93AE,0x93AC,0x93B0,/* 0xE8-0xEF */
+	0x9398,0x939A,0x9397,0x95D4,0x95D6,0x95D0,0x95D5,0xF9EA,/* 0xF0-0xF7 */
+	0x96DC,0x96D9,0x96DB,0x96DE,0x9724,0x97A3,0x97A6,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_C3[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x97AD,0x97F9,0x984D,0x984F,0x984C,0x984E,0x9853,0x98BA,/* 0x40-0x47 */
+	0x993E,0x993F,0x993D,0x992E,0x99A5,0x9A0E,0x9AC1,0x9B03,/* 0x48-0x4F */
+	0x9B06,0x9B4F,0x9B4E,0x9B4D,0x9BCA,0x9BC9,0x9BFD,0x9BC8,/* 0x50-0x57 */
+	0x9BC0,0x9D51,0x9D5D,0x9D60,0x9EE0,0x9F15,0x9F2C,0x5133,/* 0x58-0x5F */
+	0x56A5,0x58DE,0xF942,0x58E2,0x5BF5,0x9F90,0xF982,0x61F2,/* 0x60-0x67 */
+	0x61F7,0xF90D,0x61F5,0x6500,0x650F,0x66E0,0x66DD,0x6AE5,/* 0x68-0x6F */
+	0x6ADD,0x6ADA,0xF931,0x701B,0x701F,0x7028,0x701A,0x701D,/* 0x70-0x77 */
+	0x7015,0x7018,0x7206,0x720D,0x7258,0x72A2,0x7378,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x737A,0x74BD,0x74CA,0x74E3,0x7587,0x7586,0x765F,/* 0xA0-0xA7 */
+	0x7661,0x77C7,0x7919,0x79B1,0x7A6B,0x7A69,0xF9A6,0x7C3F,/* 0xA8-0xAF */
+	0x7C38,0x7C3D,0x7C37,0x7C40,0x7E6B,0x7E6D,0x7E79,0x7E69,/* 0xB0-0xB7 */
+	0x7E6A,0xF90F,0x7E73,0x7FB6,0x7FB9,0x7FB8,0xF926,0x85E9,/* 0xB8-0xBF */
+	0x85DD,0x85EA,0x85D5,0x85E4,0x85E5,0x85F7,0x87FB,0x8805,/* 0xC0-0xC7 */
+	0x880D,0x87F9,0x87FE,0x8960,0x895F,0x8956,0x895E,0x8B41,/* 0xC8-0xCF */
+	0x8B5C,0xF9FC,0x8B49,0x8B5A,0x8B4E,0x8B4F,0x8B46,0x8B59,/* 0xD0-0xD7 */
+	0x8D08,0x8D0A,0x8E7C,0x8E72,0x8E87,0x8E76,0x8E6C,0x8E7A,/* 0xD8-0xDF */
+	0x8E74,0x8F54,0x8F4E,0x8FAD,0x908A,0x908B,0x91B1,0x91AE,/* 0xE0-0xE7 */
+	0x93E1,0x93D1,0x93DF,0x93C3,0x93C8,0x93DC,0x93DD,0x93D6,/* 0xE8-0xEF */
+	0x93E2,0x93CD,0x93D8,0x93E4,0x93D7,0x93E8,0x95DC,0x96B4,/* 0xF0-0xF7 */
+	0x96E3,0x972A,0x9727,0x9761,0x97DC,0x97FB,0xF9D0,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_C4[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x9858,0x985B,0x98BC,0x9945,0x9949,0x9A16,0x9A19,0x9B0D,/* 0x40-0x47 */
+	0x9BE8,0x9BE7,0x9BD6,0x9BDB,0x9D89,0x9D61,0x9D72,0x9D6A,/* 0x48-0x4F */
+	0x9D6C,0x9E92,0xF988,0x9E93,0x9EB4,0x52F8,0x56A8,0x56B7,/* 0x50-0x57 */
+	0x56B6,0x56B4,0x56BC,0x58E4,0x5B40,0x5B43,0x5B7D,0x5BF6,/* 0x58-0x5F */
+	0x5DC9,0x61F8,0x61FA,0x6518,0x6514,0x6519,0x66E6,0x6727,/* 0x60-0x67 */
+	0x6AEC,0x703E,0x7030,0x7032,0xF932,0x737B,0x74CF,0x7662,/* 0x68-0x6F */
+	0x7665,0x7926,0xF985,0x792C,0x792B,0x7AC7,0x7AF6,0x7C4C,/* 0x70-0x77 */
+	0x7C43,0x7C4D,0x7CEF,0x7CF0,0x8FAE,0x7E7D,0x7E7C,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x7E82,0x7F4C,0x8000,0x81DA,0x8266,0x85FB,0x85F9,/* 0xA0-0xA7 */
+	0x8611,0xF9F0,0xF935,0x860B,0x8607,0x860A,0x8814,0x8815,/* 0xA8-0xAF */
+	0xF924,0x89BA,0x89F8,0x8B70,0x8B6C,0x8B66,0x8B6F,0x8B5F,/* 0xB0-0xB7 */
+	0x8B6B,0x8D0F,0x8D0D,0x8E89,0x8E81,0x8E85,0x8E82,0xF9B7,/* 0xB8-0xBF */
+	0x91CB,0x9418,0x9403,0x93FD,0x95E1,0x9730,0x98C4,0x9952,/* 0xC0-0xC7 */
+	0x9951,0x99A8,0x9A2B,0x9A30,0x9A37,0x9A35,0x9C13,0x9C0D,/* 0xC8-0xCF */
+	0x9E79,0x9EB5,0x9EE8,0x9F2F,0x9F5F,0x9F63,0x9F61,0x5137,/* 0xD0-0xD7 */
+	0x5138,0x56C1,0x56C0,0x56C2,0x5914,0x5C6C,0x5DCD,0x61FC,/* 0xD8-0xDF */
+	0x61FE,0x651D,0x651C,0x6595,0x66E9,0x6AFB,0xF91D,0x6AFA,/* 0xE0-0xE7 */
+	0x6BB2,0x704C,0xF91E,0x72A7,0x74D6,0x74D4,0xF90E,0x77D3,/* 0xE8-0xEF */
+	0x7C50,0x7E8F,0x7E8C,0x7FBC,0x8617,0xF91F,0x861A,0x8823,/* 0xF0-0xF7 */
+	0x8822,0x8821,0xF927,0x896A,0x896C,0x89BD,0x8B74,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_C5[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8B77,0x8B7D,0x8D13,0x8E8A,0x8E8D,0x8E8B,0x8F5F,0x8FAF,/* 0x40-0x47 */
+	0x91BA,0x942E,0x9433,0x9435,0x943A,0x9438,0x9432,0x942B,/* 0x48-0x4F */
+	0x95E2,0x9738,0x9739,0xF938,0x97FF,0x9867,0x9865,0x9957,/* 0x50-0x57 */
+	0x9A45,0x9A43,0x9A40,0x9A3E,0x9ACF,0x9B54,0x9B51,0x9C2D,/* 0x58-0x5F */
+	0x9C25,0x9DAF,0xFA2D,0x9DC2,0x9DB8,0x9E9D,0x9EEF,0x9F19,/* 0x60-0x67 */
+	0x9F5C,0x9F66,0x9F67,0x513C,0x513B,0x56C8,0x56CA,0x56C9,/* 0x68-0x6F */
+	0x5B7F,0x5DD4,0x5DD2,0x5F4E,0x61FF,0x6524,0x6B0A,0x6B61,/* 0x70-0x77 */
+	0x7051,0x7058,0x7380,0x74E4,0x758A,0x766E,0x766C,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x79B3,0xF944,0x7C5F,0xF945,0x807D,0x81DF,0x8972,/* 0xA0-0xA7 */
+	0x896F,0x89FC,0xF95A,0x8D16,0x8D17,0x8E91,0x8E93,0x8F61,/* 0xA8-0xAF */
+	0x9148,0x9444,0x9451,0x9452,0x973D,0x973E,0x97C3,0x97C1,/* 0xB0-0xB7 */
+	0x986B,0x9955,0x9A55,0x9A4D,0x9AD2,0x9B1A,0x9C49,0x9C31,/* 0xB8-0xBF */
+	0x9C3E,0x9C3B,0x9DD3,0x9DD7,0x9F34,0x9F6C,0x9F6A,0x9F94,/* 0xC0-0xC7 */
+	0x56CC,0x5DD6,0xF990,0x6523,0x652B,0x652A,0x66EC,0x6B10,/* 0xC8-0xCF */
+	0x74DA,0x7ACA,0x7C64,0x7C63,0x7C65,0x7E93,0x7E96,0x7E94,/* 0xD0-0xD7 */
+	0x81E2,0x8638,0xF910,0x8831,0x8B8A,0x9090,0xF913,0x9463,/* 0xD8-0xDF */
+	0x9460,0x9464,0x9768,0x986F,0x995C,0x9A5A,0x9A5B,0x9A57,/* 0xE0-0xE7 */
+	0x9AD3,0x9AD4,0x9AD1,0x9C54,0xF9F2,0x9C56,0x9DE5,0xF9F3,/* 0xE8-0xEF */
+	0x9EF4,0x56D1,0x58E9,0x652C,0x705E,0x7671,0x7672,0x77D7,/* 0xF0-0xF7 */
+	0x7F50,0x7F88,0x8836,0x8839,0x8862,0x8B93,0x8B92,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_C6[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8B96,0x8277,0x8D1B,0x91C0,0x946A,0x9742,0xF9B3,0x9744,/* 0x40-0x47 */
+	0x97C6,0x9870,0x9A5F,0x9B22,0x9B58,0x9C5F,0x9DF9,0xF93A,/* 0x48-0x4F */
+	0x9E7C,0x9E7D,0x9F07,0x9F77,0x9F72,0x5EF3,0x6B16,0x7063,/* 0x50-0x57 */
+	0x7C6C,0x7C6E,0x883B,0x89C0,0x8EA1,0x91C1,0x9472,0x9470,/* 0x58-0x5F */
+	0x9871,0x995E,0x9AD6,0x9B23,0x9ECC,0x7064,0x77DA,0x8B9A,/* 0x60-0x67 */
+	0x9477,0x97C9,0x9A62,0x9A65,0x7E9C,0x8B9C,0x8EAA,0x91C5,/* 0x68-0x6F */
+	0x947D,0x947E,0x947C,0x9C77,0x9C78,0x9EF7,0x8C54,0x947F,/* 0x70-0x77 */
+	0x9E1A,0x7228,0xF987,0x9B31,0x9E1B,0xF920,0x7C72,0x0000,/* 0x78-0x7F */
+};
+
+static wchar_t c2u_C9[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x4E42,0x4E5C,0x51F5,0x531A,0x5382,0x4E07,0x4E0C,0x4E47,/* 0x40-0x47 */
+	0x4E8D,0x56D7,0xFA0C,0x5C6E,0x5F73,0x4E0F,0x5187,0x4E0E,/* 0x48-0x4F */
+	0x4E2E,0x4E93,0x4EC2,0x4EC9,0x4EC8,0x5198,0x52FC,0x536C,/* 0x50-0x57 */
+	0x53B9,0x5720,0x5903,0x592C,0x5C10,0x5DFF,0x65E1,0x6BB3,/* 0x58-0x5F */
+	0x6BCC,0x6C14,0x723F,0x4E31,0x4E3C,0x4EE8,0x4EDC,0x4EE9,/* 0x60-0x67 */
+	0x4EE1,0x4EDD,0x4EDA,0x520C,0x531C,0x534C,0x5722,0x5723,/* 0x68-0x6F */
+	0x5917,0x592F,0x5B81,0x5B84,0x5C12,0x5C3B,0x5C74,0x5C73,/* 0x70-0x77 */
+	0x5E04,0x5E80,0x5E82,0x5FC9,0x6209,0x6250,0x6C15,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x6C36,0x6C43,0x6C3F,0x6C3B,0x72AE,0x72B0,0x738A,/* 0xA0-0xA7 */
+	0x79B8,0x808A,0x961E,0x4F0E,0x4F18,0x4F2C,0x4EF5,0x4F14,/* 0xA8-0xAF */
+	0x4EF1,0x4F00,0x4EF7,0x4F08,0x4F1D,0x4F02,0x4F05,0x4F22,/* 0xB0-0xB7 */
+	0x4F13,0x4F04,0x4EF4,0x4F12,0x51B1,0x5213,0x5209,0x5210,/* 0xB8-0xBF */
+	0x52A6,0x5322,0x531F,0x534D,0x538A,0x5407,0x56E1,0x56DF,/* 0xC0-0xC7 */
+	0x572E,0x572A,0x5734,0x593C,0x5980,0x597C,0x5985,0x597B,/* 0xC8-0xCF */
+	0x597E,0x5977,0x597F,0x5B56,0x5C15,0x5C25,0x5C7C,0x5C7A,/* 0xD0-0xD7 */
+	0x5C7B,0x5C7E,0x5DDF,0x5E75,0x5E84,0x5F02,0x5F1A,0x5F74,/* 0xD8-0xDF */
+	0x5FD5,0x5FD4,0x5FCF,0x625C,0x625E,0x6264,0x6261,0x6266,/* 0xE0-0xE7 */
+	0x6262,0x6259,0x6260,0x625A,0x6265,0x65EF,0x65EE,0x673E,/* 0xE8-0xEF */
+	0x6739,0x6738,0x673B,0x673A,0x673F,0x673C,0x6733,0x6C18,/* 0xF0-0xF7 */
+	0x6C46,0x6C52,0x6C5C,0x6C4F,0x6C4A,0x6C54,0x6C4B,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_CA[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6C4C,0x7071,0x725E,0x72B4,0x72B5,0x738E,0x752A,0x767F,/* 0x40-0x47 */
+	0x7A75,0x7F51,0x8278,0x827C,0x8280,0x827D,0x827F,0x864D,/* 0x48-0x4F */
+	0x897E,0x9099,0x9097,0x9098,0x909B,0x9094,0x9622,0x9624,/* 0x50-0x57 */
+	0x9620,0x9623,0x4F56,0x4F3B,0x4F62,0x4F49,0x4F53,0x4F64,/* 0x58-0x5F */
+	0x4F3E,0x4F67,0x4F52,0x4F5F,0x4F41,0x4F58,0x4F2D,0x4F33,/* 0x60-0x67 */
+	0x4F3F,0x4F61,0x518F,0x51B9,0x521C,0x521E,0x5221,0x52AD,/* 0x68-0x6F */
+	0x52AE,0x5309,0x5363,0x5372,0x538E,0x538F,0x5430,0x5437,/* 0x70-0x77 */
+	0x542A,0x5454,0x5445,0x5419,0x541C,0x5425,0x5418,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x543D,0x544F,0x5441,0x5428,0x5424,0x5447,0x56EE,/* 0xA0-0xA7 */
+	0x56E7,0x56E5,0x5741,0x5745,0x574C,0x5749,0x574B,0x5752,/* 0xA8-0xAF */
+	0x5906,0x5940,0x59A6,0x5998,0x59A0,0x5997,0x598E,0x59A2,/* 0xB0-0xB7 */
+	0x5990,0x598F,0x59A7,0x59A1,0x5B8E,0x5B92,0x5C28,0x5C2A,/* 0xB8-0xBF */
+	0x5C8D,0x5C8F,0x5C88,0x5C8B,0x5C89,0x5C92,0x5C8A,0x5C86,/* 0xC0-0xC7 */
+	0x5C93,0x5C95,0x5DE0,0x5E0A,0x5E0E,0x5E8B,0x5E89,0x5E8C,/* 0xC8-0xCF */
+	0x5E88,0x5E8D,0x5F05,0x5F1D,0x5F78,0x5F76,0x5FD2,0x5FD1,/* 0xD0-0xD7 */
+	0x5FD0,0x5FED,0x5FE8,0x5FEE,0x5FF3,0x5FE1,0x5FE4,0x5FE3,/* 0xD8-0xDF */
+	0x5FFA,0x5FEF,0x5FF7,0x5FFB,0x6000,0x5FF4,0x623A,0x6283,/* 0xE0-0xE7 */
+	0x628C,0x628E,0x628F,0x6294,0x6287,0x6271,0x627B,0x627A,/* 0xE8-0xEF */
+	0x6270,0x6281,0x6288,0x6277,0x627D,0x6272,0x6274,0x6537,/* 0xF0-0xF7 */
+	0x65F0,0x65F4,0x65F3,0x65F2,0x65F5,0x6745,0x6747,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_CB[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6759,0x6755,0x674C,0x6748,0x675D,0x674D,0x675A,0x674B,/* 0x40-0x47 */
+	0x6BD0,0x6C19,0x6C1A,0x6C78,0x6C67,0x6C6B,0x6C84,0x6C8B,/* 0x48-0x4F */
+	0x6C8F,0x6C71,0x6C6F,0x6C69,0x6C9A,0x6C6D,0x6C87,0x6C95,/* 0x50-0x57 */
+	0x6C9C,0x6C66,0x6C73,0x6C65,0x6C7B,0x6C8E,0x7074,0x707A,/* 0x58-0x5F */
+	0x7263,0x72BF,0x72BD,0x72C3,0x72C6,0x72C1,0x72BA,0x72C5,/* 0x60-0x67 */
+	0x7395,0x7397,0x7393,0x7394,0x7392,0x753A,0x7539,0x7594,/* 0x68-0x6F */
+	0x7595,0x7681,0x793D,0x8034,0x8095,0x8099,0x8090,0x8092,/* 0x70-0x77 */
+	0x809C,0x8290,0x828F,0x8285,0x828E,0x8291,0x8293,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x828A,0x8283,0x8284,0x8C78,0x8FC9,0x8FBF,0x909F,/* 0xA0-0xA7 */
+	0x90A1,0x90A5,0x909E,0x90A7,0x90A0,0x9630,0x9628,0x962F,/* 0xA8-0xAF */
+	0x962D,0x4E33,0x4F98,0x4F7C,0x4F85,0x4F7D,0x4F80,0x4F87,/* 0xB0-0xB7 */
+	0x4F76,0x4F74,0x4F89,0x4F84,0x4F77,0x4F4C,0x4F97,0x4F6A,/* 0xB8-0xBF */
+	0x4F9A,0x4F79,0x4F81,0x4F78,0x4F90,0x4F9C,0x4F94,0x4F9E,/* 0xC0-0xC7 */
+	0x4F92,0x4F82,0x4F95,0x4F6B,0x4F6E,0x519E,0x51BC,0x51BE,/* 0xC8-0xCF */
+	0x5235,0x5232,0x5233,0x5246,0x5231,0x52BC,0x530A,0x530B,/* 0xD0-0xD7 */
+	0x533C,0x5392,0x5394,0x5487,0x547F,0x5481,0x5491,0x5482,/* 0xD8-0xDF */
+	0x5488,0x546B,0x547A,0x547E,0x5465,0x546C,0x5474,0x5466,/* 0xE0-0xE7 */
+	0x548D,0x546F,0x5461,0x5460,0x5498,0x5463,0x5467,0x5464,/* 0xE8-0xEF */
+	0x56F7,0xF9A9,0x576F,0x5772,0x576D,0x576B,0x5771,0x5770,/* 0xF0-0xF7 */
+	0x5776,0x5780,0x5775,0x577B,0x5773,0x5774,0x5762,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_CC[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x5768,0x577D,0x590C,0x5945,0x59B5,0x59BA,0x59CF,0x59CE,/* 0x40-0x47 */
+	0x59B2,0x59CC,0x59C1,0x59B6,0x59BC,0x59C3,0x59D6,0x59B1,/* 0x48-0x4F */
+	0x59BD,0x59C0,0x59C8,0x59B4,0x59C7,0x5B62,0x5B65,0x5B93,/* 0x50-0x57 */
+	0x5B95,0x5C44,0x5C47,0x5CAE,0x5CA4,0x5CA0,0x5CB5,0x5CAF,/* 0x58-0x5F */
+	0x5CA8,0x5CAC,0x5C9F,0x5CA3,0x5CAD,0x5CA2,0x5CAA,0x5CA7,/* 0x60-0x67 */
+	0x5C9D,0x5CA5,0x5CB6,0x5CB0,0x5CA6,0x5E17,0x5E14,0x5E19,/* 0x68-0x6F */
+	0x5F28,0x5F22,0x5F23,0x5F24,0x5F54,0x5F82,0x5F7E,0x5F7D,/* 0x70-0x77 */
+	0x5FDE,0x5FE5,0x602D,0x6026,0x6019,0x6032,0x600B,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x6034,0x600A,0x6017,0x6033,0x601A,0x601E,0x602C,/* 0xA0-0xA7 */
+	0x6022,0x600D,0x6010,0x602E,0x6013,0x6011,0x600C,0x6009,/* 0xA8-0xAF */
+	0xF9AC,0x6214,0x623D,0x62AD,0x62B4,0x62D1,0x62BE,0x62AA,/* 0xB0-0xB7 */
+	0x62B6,0x62CA,0x62AE,0x62B3,0x62AF,0x62BB,0x62A9,0x62B0,/* 0xB8-0xBF */
+	0x62B8,0x653D,0x65A8,0x65BB,0x6609,0x65FC,0x6604,0x6612,/* 0xC0-0xC7 */
+	0x6608,0x65FB,0x6603,0x660B,0x660D,0x6605,0x65FD,0x6611,/* 0xC8-0xCF */
+	0x6610,0x66F6,0x670A,0x6785,0x676C,0x678E,0x6792,0x6776,/* 0xD0-0xD7 */
+	0xF9C8,0x6798,0x6786,0x6784,0x6774,0x678D,0x678C,0x677A,/* 0xD8-0xDF */
+	0x679F,0x6791,0x6799,0x6783,0x677D,0x6781,0x6778,0x6779,/* 0xE0-0xE7 */
+	0x6794,0x6B25,0x6B80,0x6B7E,0x6BDE,0x6C1D,0x6C93,0x6CEC,/* 0xE8-0xEF */
+	0x6CEB,0x6CEE,0x6CD9,0x6CB6,0x6CD4,0x6CAD,0x6CE7,0x6CB7,/* 0xF0-0xF7 */
+	0x6CD0,0x6CC2,0x6CBA,0x6CC3,0x6CC6,0x6CED,0x6CF2,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_CD[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6CD2,0x6CDD,0x6CB4,0x6C8A,0x6C9D,0x6C80,0x6CDE,0x6CC0,/* 0x40-0x47 */
+	0x6D30,0x6CCD,0x6CC7,0x6CB0,0x6CF9,0x6CCF,0x6CE9,0x6CD1,/* 0x48-0x4F */
+	0x7094,0x7098,0x7085,0x7093,0x7086,0x7084,0x7091,0x7096,/* 0x50-0x57 */
+	0x7082,0x709A,0x7083,0x726A,0x72D6,0x72CB,0x72D8,0x72C9,/* 0x58-0x5F */
+	0x72DC,0x72D2,0x72D4,0x72DA,0x72CC,0x72D1,0x73A4,0x73A1,/* 0x60-0x67 */
+	0x73AD,0x73A6,0x73A2,0x73A0,0x73AC,0x739D,0x74DD,0x74E8,/* 0x68-0x6F */
+	0x753F,0x7540,0x753E,0x758C,0x7598,0x76AF,0x76F3,0x76F1,/* 0x70-0x77 */
+	0x76F0,0x76F5,0x77F8,0x77FC,0x77F9,0x77FB,0x77FA,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x77F7,0x7942,0x793F,0x79C5,0x7A78,0x7A7B,0x7AFB,/* 0xA0-0xA7 */
+	0x7C75,0x7CFD,0x8035,0x808F,0x80AE,0x80A3,0x80B8,0x80B5,/* 0xA8-0xAF */
+	0x80AD,0x8220,0x82A0,0x82C0,0x82AB,0x829A,0x8298,0x829B,/* 0xB0-0xB7 */
+	0x82B5,0x82A7,0x82AE,0x82BC,0x829E,0x82BA,0x82B4,0x82A8,/* 0xB8-0xBF */
+	0x82A1,0x82A9,0x82C2,0x82A4,0x82C3,0x82B6,0x82A2,0x8670,/* 0xC0-0xC7 */
+	0x866F,0x866D,0x866E,0x8C56,0x8FD2,0x8FCB,0x8FD3,0x8FCD,/* 0xC8-0xCF */
+	0x8FD6,0x8FD5,0x8FD7,0x90B2,0x90B4,0x90AF,0x90B3,0x90B0,/* 0xD0-0xD7 */
+	0x9639,0x963D,0x963C,0x963A,0x9643,0x4FCD,0x4FC5,0x4FD3,/* 0xD8-0xDF */
+	0x4FB2,0x4FC9,0x4FCB,0x4FC1,0x4FD4,0x4FDC,0x4FD9,0x4FBB,/* 0xE0-0xE7 */
+	0x4FB3,0x4FDB,0x4FC7,0x4FD6,0x4FBA,0x4FC0,0x4FB9,0x4FEC,/* 0xE8-0xEF */
+	0x5244,0x5249,0x52C0,0x52C2,0x533D,0x537C,0x5397,0x5396,/* 0xF0-0xF7 */
+	0x5399,0x5398,0x54BA,0x54A1,0x54AD,0x54A5,0x54CF,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_CE[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x54C3,0x830D,0x54B7,0x54AE,0x54D6,0x54B6,0x54C5,0x54C6,/* 0x40-0x47 */
+	0x54A0,0x5470,0x54BC,0x54A2,0x54BE,0x5472,0x54DE,0x54B0,/* 0x48-0x4F */
+	0x57B5,0x579E,0x579F,0x57A4,0x578C,0x5797,0x579D,0x579B,/* 0x50-0x57 */
+	0x5794,0x5798,0x578F,0x5799,0x57A5,0x579A,0x5795,0x58F4,/* 0x58-0x5F */
+	0x590D,0x5953,0x59E1,0x59DE,0x59EE,0x5A00,0x59F1,0x59DD,/* 0x60-0x67 */
+	0x59FA,0x59FD,0x59FC,0x59F6,0x59E4,0x59F2,0x59F7,0x59DB,/* 0x68-0x6F */
+	0x59E9,0x59F3,0x59F5,0x59E0,0x59FE,0x59F4,0x59ED,0x5BA8,/* 0x70-0x77 */
+	0x5C4C,0x5CD0,0x5CD8,0x5CCC,0x5CD7,0x5CCB,0x5CDB,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x5CDE,0x5CDA,0x5CC9,0x5CC7,0x5CCA,0x5CD6,0x5CD3,/* 0xA0-0xA7 */
+	0x5CD4,0x5CCF,0x5CC8,0x5CC6,0x5CCE,0x5CDF,0x5CF8,0x5DF9,/* 0xA8-0xAF */
+	0x5E21,0x5E22,0x5E23,0x5E20,0x5E24,0x5EB0,0x5EA4,0x5EA2,/* 0xB0-0xB7 */
+	0x5E9B,0x5EA3,0x5EA5,0x5F07,0x5F2E,0x5F56,0x5F86,0x6037,/* 0xB8-0xBF */
+	0x6039,0x6054,0x6072,0x605E,0x6045,0x6053,0x6047,0x6049,/* 0xC0-0xC7 */
+	0x605B,0x604C,0x6040,0x6042,0x605F,0x6024,0x6044,0x6058,/* 0xC8-0xCF */
+	0x6066,0x606E,0x6242,0x6243,0xF95B,0x630D,0x630B,0x62F5,/* 0xD0-0xD7 */
+	0x630E,0x6303,0x62EB,0x62F9,0x630F,0x630C,0x62F8,0x62F6,/* 0xD8-0xDF */
+	0x6300,0x6313,0x6314,0x62FA,0x6315,0x62FB,0x62F0,0x6541,/* 0xE0-0xE7 */
+	0x6543,0x65AA,0x65BF,0x6636,0x6621,0x6632,0x6635,0x661C,/* 0xE8-0xEF */
+	0x6626,0x6622,0x6633,0x662B,0x663A,0x661D,0x6634,0x6639,/* 0xF0-0xF7 */
+	0x662E,0x670F,0x6710,0x67C1,0x67F2,0x67C8,0x67BA,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_CF[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x67DC,0x67BB,0x67F8,0x67D8,0x67C0,0x67B7,0x67C5,0x67EB,/* 0x40-0x47 */
+	0x67E4,0x67DF,0x67B5,0x67CD,0x67B3,0x67F7,0x67F6,0x67EE,/* 0x48-0x4F */
+	0x67E3,0x67C2,0x67B9,0x67CE,0x67E7,0x67F0,0x67B2,0x67FC,/* 0x50-0x57 */
+	0x67C6,0x67ED,0x67CC,0x67AE,0x67E6,0x67DB,0x67FA,0x67C9,/* 0x58-0x5F */
+	0x67CA,0x67C3,0x67EA,0x67CB,0x6B28,0x6B82,0x6B84,0x6BB6,/* 0x60-0x67 */
+	0x6BD6,0x6BD8,0x6BE0,0x6C20,0x6C21,0x6D28,0x6D34,0x6D2D,/* 0x68-0x6F */
+	0x6D1F,0x6D3C,0x6D3F,0x6D12,0x6D0A,0x6CDA,0x6D33,0x6D04,/* 0x70-0x77 */
+	0x6D19,0x6D3A,0x6D1A,0x6D11,0x6D00,0x6D1D,0x6D42,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x6D01,0x6D18,0x6D37,0x6D03,0x6D0F,0x6D40,0x6D07,/* 0xA0-0xA7 */
+	0x6D20,0x6D2C,0x6D08,0x6D22,0x6D09,0x6D10,0x70B7,0x709F,/* 0xA8-0xAF */
+	0x70BE,0x70B1,0x70B0,0x70A1,0x70B4,0x70B5,0x70A9,0x7241,/* 0xB0-0xB7 */
+	0x7249,0x724A,0x726C,0x7270,0x7273,0x726E,0x72CA,0x72E4,/* 0xB8-0xBF */
+	0x72E8,0x72EB,0x72DF,0x72EA,0x72E6,0x72E3,0x7385,0x73CC,/* 0xC0-0xC7 */
+	0x73C2,0x73C8,0x73C5,0x73B9,0x73B6,0x73B5,0x73B4,0x73EB,/* 0xC8-0xCF */
+	0x73BF,0x73C7,0x73BE,0x73C3,0x73C6,0x73B8,0x73CB,0x74EC,/* 0xD0-0xD7 */
+	0x74EE,0x752E,0x7547,0x7548,0x75A7,0x75AA,0x7679,0x76C4,/* 0xD8-0xDF */
+	0x7708,0x7703,0x7704,0x7705,0x770A,0x76F7,0x76FB,0x76FA,/* 0xE0-0xE7 */
+	0x77E7,0x77E8,0x7806,0x7811,0x7812,0x7805,0x7810,0x780F,/* 0xE8-0xEF */
+	0x780E,0x7809,0x7803,0x7813,0x794A,0x794C,0x794B,0x7945,/* 0xF0-0xF7 */
+	0x7944,0x79D5,0x79CD,0x79CF,0x79D6,0x79CE,0x7A80,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D0[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7A7E,0x7AD1,0x7B00,0x7B01,0x7C7A,0x7C78,0x7C79,0x7C7F,/* 0x40-0x47 */
+	0x7C80,0x7C81,0x7D03,0x7D08,0x7D01,0x7F58,0x7F91,0x7F8D,/* 0x48-0x4F */
+	0x7FBE,0x8007,0x800E,0x800F,0x8014,0x8037,0x80D8,0x80C7,/* 0x50-0x57 */
+	0x80E0,0x80D1,0x80C8,0x80C2,0x80D0,0x80C5,0x80E3,0x80D9,/* 0x58-0x5F */
+	0x80DC,0x80CA,0x80D5,0x80C9,0x80CF,0x80D7,0x80E6,0x80CD,/* 0x60-0x67 */
+	0x81FF,0x8221,0x8294,0x82D9,0x82FE,0x82F9,0x8307,0x82E8,/* 0x68-0x6F */
+	0x8300,0x82D5,0x833A,0x82EB,0x82D6,0x82F4,0x82EC,0x82E1,/* 0x70-0x77 */
+	0x82F2,0x82F5,0x830C,0x82FB,0x82F6,0x82F0,0x82EA,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x82E4,0x82E0,0x82FA,0x82F3,0x82ED,0x8677,0x8674,/* 0xA0-0xA7 */
+	0x867C,0x8673,0x8841,0x884E,0x8867,0x886A,0x8869,0x89D3,/* 0xA8-0xAF */
+	0x8A04,0x8A07,0x8D72,0x8FE3,0x8FE1,0x8FEE,0x8FE0,0x90F1,/* 0xB0-0xB7 */
+	0x90BD,0x90BF,0x90D5,0x90C5,0x90BE,0x90C7,0x90CB,0x90C8,/* 0xB8-0xBF */
+	0x91D4,0x91D3,0x9654,0x964F,0x9651,0x9653,0x964A,0x964E,/* 0xC0-0xC7 */
+	0x501E,0x5005,0x5007,0x5013,0x5022,0x5030,0x501B,0x4FF5,/* 0xC8-0xCF */
+	0x4FF4,0x5033,0x5037,0x502C,0x4FF6,0x4FF7,0x5017,0x501C,/* 0xD0-0xD7 */
+	0x5020,0x5027,0x5035,0x502F,0x5031,0x500E,0x515A,0x5194,/* 0xD8-0xDF */
+	0x5193,0x51CA,0x51C4,0x51C5,0x51C8,0x51CE,0x5261,0x525A,/* 0xE0-0xE7 */
+	0x5252,0x525E,0x525F,0x5255,0x5262,0x52CD,0x530E,0x539E,/* 0xE8-0xEF */
+	0x5526,0x54E2,0x5517,0x5512,0x54E7,0x54F3,0x54E4,0x551A,/* 0xF0-0xF7 */
+	0x54FF,0x5504,0x5508,0x54EB,0x5511,0x5505,0x54F1,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D1[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x550A,0x54FB,0x54F7,0x54F8,0x54E0,0x550E,0x5503,0x550B,/* 0x40-0x47 */
+	0x5701,0x5702,0x57CC,0x5832,0x57D5,0x57D2,0x57BA,0x57C6,/* 0x48-0x4F */
+	0x57BD,0x57BC,0x57B8,0x57B6,0x57BF,0x57C7,0x57D0,0x57B9,/* 0x50-0x57 */
+	0x57C1,0x590E,0x594A,0x5A19,0x5A16,0x5A2D,0x5A2E,0x5A15,/* 0x58-0x5F */
+	0x5A0F,0x5A17,0x5A0A,0x5A1E,0x5A33,0x5B6C,0x5BA7,0x5BAD,/* 0x60-0x67 */
+	0x5BAC,0x5C03,0x5C56,0x5C54,0x5CEC,0x5CFF,0x5CEE,0x5CF1,/* 0x68-0x6F */
+	0x5CF7,0x5D00,0x5CF9,0x5E29,0x5E28,0x5EA8,0x5EAE,0x5EAA,/* 0x70-0x77 */
+	0x5EAC,0x5F33,0x5F30,0x5F67,0x605D,0x605A,0x6067,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x6041,0x60A2,0x6088,0x6080,0x6092,0x6081,0x609D,/* 0xA0-0xA7 */
+	0x6083,0x6095,0x609B,0x6097,0x6087,0x609C,0x608E,0x6219,/* 0xA8-0xAF */
+	0x6246,0x62F2,0x6310,0x6356,0x632C,0x6344,0x6345,0x6336,/* 0xB0-0xB7 */
+	0x6343,0x63E4,0x6339,0x634B,0x634A,0x633C,0x6329,0x6341,/* 0xB8-0xBF */
+	0x6334,0x6358,0x6354,0x6359,0x632D,0x6347,0x6333,0x635A,/* 0xC0-0xC7 */
+	0x6351,0x6338,0x6357,0x6340,0x6348,0x654A,0x6546,0x65C6,/* 0xC8-0xCF */
+	0x65C3,0x65C4,0x65C2,0x664A,0x665F,0x6647,0x6651,0x6712,/* 0xD0-0xD7 */
+	0x6713,0x681F,0x681A,0x6849,0x6832,0x6833,0x683B,0x684B,/* 0xD8-0xDF */
+	0x684F,0x6816,0x6831,0x681C,0x6835,0x682B,0x682D,0x682F,/* 0xE0-0xE7 */
+	0x684E,0x6844,0x6834,0x681D,0x6812,0x6814,0x6826,0x6828,/* 0xE8-0xEF */
+	0x682E,0x684D,0x683A,0x6825,0x6820,0x6B2C,0x6B2F,0x6B2D,/* 0xF0-0xF7 */
+	0x6B31,0x6B34,0x6B6D,0x8082,0x6B88,0x6BE6,0x6BE4,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D2[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6BE8,0x6BE3,0x6BE2,0x6BE7,0x6C25,0x6D7A,0x6D63,0x6D64,/* 0x40-0x47 */
+	0x6D76,0x6D0D,0x6D61,0x6D92,0x6D58,0x6D62,0x6D6D,0x6D6F,/* 0x48-0x4F */
+	0x6D91,0x6D8D,0x6DEF,0x6D7F,0x6D86,0x6D5E,0x6D67,0x6D60,/* 0x50-0x57 */
+	0x6D97,0x6D70,0x6D7C,0x6D5F,0x6D82,0x6D98,0x6D2F,0x6D68,/* 0x58-0x5F */
+	0x6D8B,0x6D7E,0x6D80,0x6D84,0x6D16,0x6D83,0x6D7B,0x6D7D,/* 0x60-0x67 */
+	0x6D75,0x6D90,0x70DC,0x70D3,0x70D1,0x70DD,0x70CB,0x7F39,/* 0x68-0x6F */
+	0x70E2,0x70D7,0x70D2,0x70DE,0x70E0,0x70D4,0x70CD,0x70C5,/* 0x70-0x77 */
+	0x70C6,0x70C7,0x70DA,0x70CE,0x70E1,0x7242,0x7278,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x7277,0x7276,0x7300,0x72FA,0x72F4,0x72FE,0x72F6,/* 0xA0-0xA7 */
+	0x72F3,0x72FB,0x7301,0x73D3,0x73D9,0x73E5,0x73D6,0x73BC,/* 0xA8-0xAF */
+	0x73E7,0x73E3,0x73E9,0x73DC,0x73D2,0x73DB,0x73D4,0x73DD,/* 0xB0-0xB7 */
+	0x73DA,0x73D7,0x73D8,0x73E8,0x74DE,0x74DF,0x74F4,0x74F5,/* 0xB8-0xBF */
+	0x7521,0x755B,0x755F,0x75B0,0x75C1,0x75BB,0x75C4,0x75C0,/* 0xC0-0xC7 */
+	0x75BF,0x75B6,0x75BA,0x768A,0x76C9,0x771D,0x771B,0x7710,/* 0xC8-0xCF */
+	0x7713,0x7712,0x7723,0x7711,0x7715,0x7719,0x771A,0x7722,/* 0xD0-0xD7 */
+	0x7727,0x7823,0x782C,0x7822,0x7835,0x782F,0x7828,0x782E,/* 0xD8-0xDF */
+	0x782B,0x7821,0x7829,0x7833,0x782A,0x7831,0x7954,0x795B,/* 0xE0-0xE7 */
+	0x794F,0x795C,0x7953,0x7952,0x7951,0x79EB,0x79EC,0x79E0,/* 0xE8-0xEF */
+	0x79EE,0x79ED,0x79EA,0x79DC,0x79DE,0x79DD,0x7A86,0x7A89,/* 0xF0-0xF7 */
+	0x7A85,0x7A8B,0x7A8C,0x7A8A,0x7A87,0x7AD8,0x7B10,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D3[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7B04,0x7B13,0x7B05,0x7B0F,0x7B08,0x7B0A,0x7B0E,0x7B09,/* 0x40-0x47 */
+	0x7B12,0x7C84,0x7C91,0x7C8A,0x7C8C,0x7C88,0x7C8D,0x7C85,/* 0x48-0x4F */
+	0x7D1E,0x7D1D,0x7D11,0x7D0E,0x7D18,0x7D16,0x7D13,0x7D1F,/* 0x50-0x57 */
+	0x7D12,0x7D0F,0x7D0C,0x7F5C,0x7F61,0x7F5E,0x7F60,0x7F5D,/* 0x58-0x5F */
+	0x7F5B,0x7F96,0x7F92,0x7FC3,0x7FC2,0x7FC0,0x8016,0x803E,/* 0x60-0x67 */
+	0x8039,0x80FA,0x80F2,0x80F9,0x80F5,0x8101,0x80FB,0x8100,/* 0x68-0x6F */
+	0x8201,0x822F,0x8225,0x8333,0x832D,0x8344,0x8319,0x8351,/* 0x70-0x77 */
+	0x8325,0x8356,0x833F,0x8341,0x8326,0x831C,0x8322,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x8342,0x834E,0x831B,0x832A,0x8308,0x833C,0x834D,/* 0xA0-0xA7 */
+	0x8316,0x8324,0x8320,0x8337,0x832F,0x8329,0x8347,0x8345,/* 0xA8-0xAF */
+	0x834C,0x8353,0x831E,0x832C,0x834B,0x8327,0x8348,0x8653,/* 0xB0-0xB7 */
+	0x8652,0x86A2,0x86A8,0x8696,0x868D,0x8691,0x869E,0x8687,/* 0xB8-0xBF */
+	0x8697,0x8686,0x868B,0x869A,0x8685,0x86A5,0x8699,0x86A1,/* 0xC0-0xC7 */
+	0x86A7,0x8695,0x8698,0x868E,0x869D,0x8690,0x8694,0x8843,/* 0xC8-0xCF */
+	0x8844,0x886D,0x8875,0x8876,0x8872,0x8880,0x8871,0x887F,/* 0xD0-0xD7 */
+	0x886F,0x8883,0x887E,0x8874,0x887C,0x8A12,0x8C47,0x8C57,/* 0xD8-0xDF */
+	0x8C7B,0x8CA4,0x8CA3,0x8D76,0x8D78,0x8DB5,0x8DB7,0x8DB6,/* 0xE0-0xE7 */
+	0x8ED1,0x8ED3,0x8FFE,0x8FF5,0x9002,0x8FFF,0x8FFB,0x9004,/* 0xE8-0xEF */
+	0x8FFC,0x8FF6,0x90D6,0x90E0,0x90D9,0x90DA,0x90E3,0x90DF,/* 0xF0-0xF7 */
+	0x90E5,0x90D8,0x90DB,0x90D7,0x90DC,0x90E4,0x9150,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D4[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x914E,0x914F,0x91D5,0x91E2,0x91DA,0x965C,0x965F,0x96BC,/* 0x40-0x47 */
+	0x98E3,0x9ADF,0x9B2F,0x4E7F,0x5070,0x506A,0x5061,0x505E,/* 0x48-0x4F */
+	0x5060,0x5053,0x504B,0x505D,0x5072,0x5048,0x504D,0x5041,/* 0x50-0x57 */
+	0x505B,0x504A,0x5062,0x5015,0x5045,0x505F,0x5069,0x506B,/* 0x58-0x5F */
+	0x5063,0x5064,0x5046,0x5040,0x506E,0x5073,0x5057,0x5051,/* 0x60-0x67 */
+	0x51D0,0x526B,0x526D,0x526C,0x526E,0x52D6,0x52D3,0x532D,/* 0x68-0x6F */
+	0x539C,0x5575,0x5576,0x553C,0x554D,0x5550,0x5534,0x552A,/* 0x70-0x77 */
+	0x5551,0x5562,0x5536,0x5535,0x5530,0x5552,0x5545,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x550C,0x5532,0x5565,0x554E,0x5539,0x5548,0x552D,/* 0xA0-0xA7 */
+	0x553B,0x5540,0x554B,0x570A,0x5707,0x57FB,0x5814,0x57E2,/* 0xA8-0xAF */
+	0x57F6,0x57DC,0x57F4,0x5800,0x57ED,0x57FD,0x5808,0x57F8,/* 0xB0-0xB7 */
+	0x580B,0x57F3,0x57CF,0x5807,0x57EE,0x57E3,0x57F2,0x57E5,/* 0xB8-0xBF */
+	0x57EC,0x57E1,0x580E,0x57FC,0x5810,0x57E7,0x5801,0x580C,/* 0xC0-0xC7 */
+	0x57F1,0x57E9,0x57F0,0x580D,0x5804,0x595C,0x5A60,0x5A58,/* 0xC8-0xCF */
+	0x5A55,0x5A67,0x5A5E,0x5A38,0x5A35,0x5A6D,0x5A50,0x5A5F,/* 0xD0-0xD7 */
+	0x5A65,0x5A6C,0x5A53,0x5A64,0x5A57,0x5A43,0x5A5D,0x5A52,/* 0xD8-0xDF */
+	0x5A44,0x5A5B,0x5A48,0x5A8E,0x5A3E,0x5A4D,0x5A39,0x5A4C,/* 0xE0-0xE7 */
+	0x5A70,0x5A69,0x5A47,0x5A51,0x5A56,0x5A42,0x5A5C,0x5B72,/* 0xE8-0xEF */
+	0x5B6E,0x5BC1,0x5BC0,0x5C59,0x5D1E,0x5D0B,0x5D1D,0x5D1A,/* 0xF0-0xF7 */
+	0x5D20,0x5D0C,0x5D28,0x5D0D,0x5D26,0x5D25,0x5D0F,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D5[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x5D30,0x5D12,0x5D23,0x5D1F,0x5D2E,0x5E3E,0x5E34,0x5EB1,/* 0x40-0x47 */
+	0x5EB4,0x5EB9,0x5EB2,0x5EB3,0x5F36,0x5F38,0x5F9B,0x5F96,/* 0x48-0x4F */
+	0x5F9F,0x608A,0x6090,0x6086,0x60BE,0x60B0,0x60BA,0x60D3,/* 0x50-0x57 */
+	0x60D4,0x60CF,0x60E4,0x60D9,0x60DD,0x60C8,0x60B1,0x60DB,/* 0x58-0x5F */
+	0x60B7,0x60CA,0x60BF,0x60C3,0x60CD,0x60C0,0x6332,0x6365,/* 0x60-0x67 */
+	0x638A,0x6382,0x637D,0x63BD,0x639E,0x63AD,0x639D,0x6397,/* 0x68-0x6F */
+	0x63AB,0x638E,0x636F,0x6387,0x6390,0x636E,0x63AF,0x6375,/* 0x70-0x77 */
+	0x639C,0x636D,0x63AE,0x637C,0x63A4,0x633B,0x639F,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x6378,0x6385,0x6381,0x6391,0x638D,0x6370,0x6553,/* 0xA0-0xA7 */
+	0x65CD,0x6665,0x6661,0x665B,0x6659,0x665C,0x6662,0x6718,/* 0xA8-0xAF */
+	0x6879,0x6887,0x6890,0x689C,0x686D,0x686E,0x68AE,0x68AB,/* 0xB0-0xB7 */
+	0x6956,0x686F,0x68A3,0x68AC,0x68A9,0x6875,0x6874,0x68B2,/* 0xB8-0xBF */
+	0x688F,0x6877,0x6892,0x687C,0x686B,0x6872,0x68AA,0x6880,/* 0xC0-0xC7 */
+	0x6871,0x687E,0x689B,0x6896,0x688B,0x68A0,0x6889,0x68A4,/* 0xC8-0xCF */
+	0x6878,0x687B,0x6891,0x688C,0x688A,0x687D,0x6B36,0x6B33,/* 0xD0-0xD7 */
+	0x6B37,0x6B38,0x6B91,0x6B8F,0x6B8D,0x6B8E,0x6B8C,0x6C2A,/* 0xD8-0xDF */
+	0x6DC0,0x6DAB,0x6DB4,0x6DB3,0x6E74,0x6DAC,0x6DE9,0x6DE2,/* 0xE0-0xE7 */
+	0x6DB7,0x6DF6,0x6DD4,0x6E00,0x6DC8,0x6DE0,0x6DDF,0x6DD6,/* 0xE8-0xEF */
+	0x6DBE,0x6DE5,0x6DDC,0x6DDD,0x6DDB,0x6DF4,0x6DCA,0x6DBD,/* 0xF0-0xF7 */
+	0x6DED,0x6DF0,0x6DBA,0x6DD5,0x6DC2,0x6DCF,0x6DC9,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D6[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6DD0,0x6DF2,0x6DD3,0x6DFD,0x6DD7,0x6DCD,0x6DE3,0x6DBB,/* 0x40-0x47 */
+	0x70FA,0x710D,0x70F7,0x7117,0x70F4,0x710C,0x70F0,0x7104,/* 0x48-0x4F */
+	0x70F3,0x7110,0x70FC,0x70FF,0x7106,0x7113,0x7100,0x70F8,/* 0x50-0x57 */
+	0x70F6,0x710B,0x7102,0x710E,0x727E,0x727B,0x727C,0x727F,/* 0x58-0x5F */
+	0x731D,0x7317,0x7307,0x7311,0x7318,0x730A,0x7308,0x72FF,/* 0x60-0x67 */
+	0x730F,0x731E,0x7388,0x73F6,0x73F8,0x73F5,0x7404,0x7401,/* 0x68-0x6F */
+	0x73FD,0x7407,0x7400,0x73FA,0x73FC,0x73FF,0x740C,0x740B,/* 0x70-0x77 */
+	0x73F4,0x7408,0x7564,0x7563,0x75CE,0x75D2,0x75CF,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x75CB,0x75CC,0x75D1,0x75D0,0x768F,0x7689,0x76D3,/* 0xA0-0xA7 */
+	0x7739,0x772F,0x772D,0x7731,0x7732,0x7734,0x7733,0x773D,/* 0xA8-0xAF */
+	0x7725,0x773B,0x7735,0x7848,0x7852,0x7849,0x784D,0x784A,/* 0xB0-0xB7 */
+	0x784C,0x7826,0x7845,0x7850,0x7964,0x7967,0x7969,0x796A,/* 0xB8-0xBF */
+	0x7963,0x796B,0x7961,0x79BB,0x79FA,0x79F8,0x79F6,0x79F7,/* 0xC0-0xC7 */
+	0x7A8F,0x7A94,0x7A90,0x7B35,0x7B47,0x7B34,0x7B25,0x7B30,/* 0xC8-0xCF */
+	0x7B22,0x7B24,0x7B33,0x7B18,0x7B2A,0x7B1D,0x7B31,0x7B2B,/* 0xD0-0xD7 */
+	0x7B2D,0x7B2F,0x7B32,0x7B38,0x7B1A,0x7B23,0x7C94,0x7C98,/* 0xD8-0xDF */
+	0x7C96,0x7CA3,0x7D35,0x7D3D,0x7D38,0x7D36,0x7D3A,0x7D45,/* 0xE0-0xE7 */
+	0x7D2C,0x7D29,0x7D41,0x7D47,0x7D3E,0x7D3F,0x7D4A,0x7D3B,/* 0xE8-0xEF */
+	0x7D28,0x7F63,0x7F95,0x7F9C,0x7F9D,0x7F9B,0x7FCA,0x7FCB,/* 0xF0-0xF7 */
+	0x7FCD,0x7FD0,0x7FD1,0x7FC7,0x7FCF,0x7FC9,0x801F,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D7[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x801E,0x801B,0x8047,0x8043,0x8048,0x8118,0x8125,0x8119,/* 0x40-0x47 */
+	0x811B,0x812D,0x811F,0x812C,0x811E,0x8121,0x8115,0x8127,/* 0x48-0x4F */
+	0x811D,0x8122,0x8211,0x8238,0x8233,0x823A,0x8234,0x8232,/* 0x50-0x57 */
+	0x8274,0x8390,0x83A3,0x83A8,0x838D,0x837A,0x8373,0x83A4,/* 0x58-0x5F */
+	0x8374,0x838F,0x8381,0x8395,0x8399,0x8375,0x8394,0x83A9,/* 0x60-0x67 */
+	0x837D,0x8383,0x838C,0x839D,0x839B,0x83AA,0x838B,0x837E,/* 0x68-0x6F */
+	0x83A5,0x83AF,0x8388,0x8397,0x83B0,0x837F,0x83A6,0x8387,/* 0x70-0x77 */
+	0x83AE,0x8376,0x839A,0x8659,0x8656,0x86BF,0x86B7,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x86C2,0x86C1,0x86C5,0x86BA,0x86B0,0x86C8,0x86B9,/* 0xA0-0xA7 */
+	0x86B3,0x86B8,0x86CC,0x86B4,0x86BB,0x86BC,0x86C3,0x86BD,/* 0xA8-0xAF */
+	0x86BE,0x8852,0x8889,0x8895,0x88A8,0x88A2,0x88AA,0x889A,/* 0xB0-0xB7 */
+	0x8891,0x88A1,0x889F,0x8898,0x88A7,0x8899,0x889B,0x8897,/* 0xB8-0xBF */
+	0x88A4,0x88AC,0x888C,0x8893,0x888E,0x8982,0x89D6,0x89D9,/* 0xC0-0xC7 */
+	0x89D5,0x8A30,0x8A27,0x8A2C,0x8A1E,0x8C39,0x8C3B,0x8C5C,/* 0xC8-0xCF */
+	0x8C5D,0x8C7D,0x8CA5,0x8D7D,0x8D7B,0x8D79,0x8DBC,0x8DC2,/* 0xD0-0xD7 */
+	0x8DB9,0x8DBF,0x8DC1,0x8ED8,0x8EDE,0x8EDD,0x8EDC,0x8ED7,/* 0xD8-0xDF */
+	0x8EE0,0x8EE1,0x9024,0x900B,0x9011,0x901C,0x900C,0x9021,/* 0xE0-0xE7 */
+	0x90EF,0x90EA,0x90F0,0x90F4,0x90F2,0x90F3,0x90D4,0x90EB,/* 0xE8-0xEF */
+	0x90EC,0x90E9,0x9156,0x9158,0x915A,0x9153,0x9155,0x91EC,/* 0xF0-0xF7 */
+	0x91F4,0x91F1,0x91F3,0x91F8,0x91E4,0x91F9,0x91EA,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D8[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x91EB,0x91F7,0x91E8,0x91EE,0x957A,0x9586,0x9588,0x967C,/* 0x40-0x47 */
+	0x966D,0x966B,0x9671,0x966F,0x96BF,0x976A,0x9804,0x98E5,/* 0x48-0x4F */
+	0x9997,0x509B,0x5095,0x5094,0x509E,0x508B,0x50A3,0x5083,/* 0x50-0x57 */
+	0x508C,0x508E,0x509D,0x5068,0x509C,0x5092,0x5082,0x5087,/* 0x58-0x5F */
+	0x515F,0x51D4,0x5312,0x5311,0x53A4,0x53A7,0x5591,0x55A8,/* 0x60-0x67 */
+	0x55A5,0x55AD,0x5577,0x5645,0x55A2,0x5593,0x5588,0x558F,/* 0x68-0x6F */
+	0x55B5,0x5581,0x55A3,0x5592,0x55A4,0x557D,0x558C,0x55A6,/* 0x70-0x77 */
+	0x557F,0x5595,0x55A1,0x558E,0x570C,0x5829,0x5837,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x5819,0x581E,0x5827,0x5823,0x5828,0x57F5,0x5848,/* 0xA0-0xA7 */
+	0x5825,0x581C,0x581B,0x5833,0x583F,0x5836,0x582E,0x5839,/* 0xA8-0xAF */
+	0x5838,0x582D,0x582C,0x583B,0x5961,0x5AAF,0x5A94,0x5A9F,/* 0xB0-0xB7 */
+	0x5A7A,0x5AA2,0x5A9E,0x5A78,0x5AA6,0x5A7C,0x5AA5,0x5AAC,/* 0xB8-0xBF */
+	0x5A95,0x5AAE,0x5A37,0x5A84,0x5A8A,0x5A97,0x5A83,0x5A8B,/* 0xC0-0xC7 */
+	0x5AA9,0x5A7B,0x5A7D,0x5A8C,0x5A9C,0x5A8F,0x5A93,0x5A9D,/* 0xC8-0xCF */
+	0x5BEA,0x5BCD,0x5BCB,0x5BD4,0x5BD1,0x5BCA,0x5BCE,0x5C0C,/* 0xD0-0xD7 */
+	0x5C30,0x5D37,0x5D43,0x5D6B,0x5D41,0x5D4B,0x5D3F,0x5D35,/* 0xD8-0xDF */
+	0x5D51,0x5D4E,0x5D55,0x5D33,0x5D3A,0x5D52,0x5D3D,0x5D31,/* 0xE0-0xE7 */
+	0x5D59,0x5D42,0x5D39,0x5D49,0x5D38,0x5D3C,0x5D32,0x5D36,/* 0xE8-0xEF */
+	0x5D40,0x5D45,0x5E44,0x5E41,0x5F58,0x5FA6,0x5FA5,0x5FAB,/* 0xF0-0xF7 */
+	0x60C9,0x60B9,0x60CC,0x60E2,0x60CE,0x60C4,0x6114,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_D9[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x60F2,0x610A,0x6116,0x6105,0x60F5,0x6113,0x60F8,0x60FC,/* 0x40-0x47 */
+	0x60FE,0x60C1,0x6103,0x6118,0x611D,0x6110,0x60FF,0x6104,/* 0x48-0x4F */
+	0x610B,0x624A,0x6394,0x63B1,0x63B0,0x63CE,0x63E5,0x63E8,/* 0x50-0x57 */
+	0x63EF,0x63C3,0x649D,0x63F3,0x63CA,0x63E0,0x63F6,0x63D5,/* 0x58-0x5F */
+	0x63F2,0x63F5,0x6461,0x63DF,0x63BE,0x63DD,0x63DC,0x63C4,/* 0x60-0x67 */
+	0x63D8,0x63D3,0x63C2,0x63C7,0x63CC,0x63CB,0x63C8,0x63F0,/* 0x68-0x6F */
+	0x63D7,0x63D9,0x6532,0x6567,0x656A,0x6564,0x655C,0x6568,/* 0x70-0x77 */
+	0x6565,0x658C,0x659D,0x659E,0x65AE,0x65D0,0x65D2,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x667C,0x666C,0x667B,0x6680,0x6671,0x6679,0x666A,/* 0xA0-0xA7 */
+	0x6672,0x6701,0x690C,0x68D3,0x6904,0x68DC,0x692A,0x68EC,/* 0xA8-0xAF */
+	0x68EA,0x68F1,0x690F,0x68D6,0x68F7,0x68EB,0x68E4,0x68F6,/* 0xB0-0xB7 */
+	0x6913,0x6910,0x68F3,0x68E1,0x6907,0x68CC,0x6908,0x6970,/* 0xB8-0xBF */
+	0x68B4,0x6911,0x68EF,0x68C6,0x6914,0x68F8,0x68D0,0x68FD,/* 0xC0-0xC7 */
+	0x68FC,0x68E8,0x690B,0x690A,0x6917,0x68CE,0x68C8,0x68DD,/* 0xC8-0xCF */
+	0x68DE,0x68E6,0x68F4,0x68D1,0x6906,0x68D4,0x68E9,0x6915,/* 0xD0-0xD7 */
+	0x6925,0x68C7,0x6B39,0x6B3B,0x6B3F,0x6B3C,0x6B94,0x6B97,/* 0xD8-0xDF */
+	0x6B99,0x6B95,0x6BBD,0x6BF0,0x6BF2,0x6BF3,0x6C30,0x6DFC,/* 0xE0-0xE7 */
+	0x6E46,0x6E47,0x6E1F,0x6E49,0x6E88,0x6E3C,0x6E3D,0x6E45,/* 0xE8-0xEF */
+	0x6E62,0x6E2B,0x6E3F,0x6E41,0x6E5D,0x6E73,0x6E1C,0x6E33,/* 0xF0-0xF7 */
+	0x6E4B,0x6E40,0x6E51,0x6E3B,0x6E03,0x6E2E,0x6E5E,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_DA[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6E68,0x6E5C,0x6E61,0x6E31,0x6E28,0x6E60,0x6E71,0x6E6B,/* 0x40-0x47 */
+	0x6E39,0x6E22,0x6E30,0x6E53,0x6E65,0x6E27,0x6E78,0x6E64,/* 0x48-0x4F */
+	0x6E77,0x6E55,0x6E79,0x6E52,0x6E66,0x6E35,0x6E36,0x6E5A,/* 0x50-0x57 */
+	0x7120,0x711E,0x712F,0x70FB,0x712E,0x7131,0x7123,0x7125,/* 0x58-0x5F */
+	0x7122,0x7132,0x711F,0x7128,0x713A,0x711B,0x724B,0x725A,/* 0x60-0x67 */
+	0x7288,0x7289,0x7286,0x7285,0x728B,0x7312,0x730B,0x7330,/* 0x68-0x6F */
+	0x7322,0x7331,0x7333,0x7327,0x7332,0x732D,0x7326,0x7323,/* 0x70-0x77 */
+	0x7335,0x730C,0x742E,0x742C,0x7430,0x742B,0x7416,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x741A,0x7421,0x742D,0x7431,0x7424,0x7423,0x741D,/* 0xA0-0xA7 */
+	0x7429,0x7420,0x7432,0x74FB,0x752F,0x756F,0x756C,0x75E7,/* 0xA8-0xAF */
+	0x75DA,0x75E1,0x75E6,0x75DD,0x75DF,0x75E4,0x75D7,0x7695,/* 0xB0-0xB7 */
+	0x7692,0x76DA,0x7746,0x7747,0x7744,0x774D,0x7745,0x774A,/* 0xB8-0xBF */
+	0x774E,0x774B,0x774C,0x77DE,0x77EC,0x7860,0x7864,0x7865,/* 0xC0-0xC7 */
+	0x785C,0x786D,0x7871,0x786A,0x786E,0x7870,0x7869,0x7868,/* 0xC8-0xCF */
+	0x785E,0x7862,0x7974,0x7973,0x7972,0x7970,0x7A02,0x7A0A,/* 0xD0-0xD7 */
+	0x7A03,0x7A0C,0x7A04,0x7A99,0x7AE6,0x7AE4,0x7B4A,0x7B3B,/* 0xD8-0xDF */
+	0x7B44,0x7B48,0x7B4C,0x7B4E,0x7B40,0x7B58,0x7B45,0x7CA2,/* 0xE0-0xE7 */
+	0x7C9E,0x7CA8,0x7CA1,0x7D58,0x7D6F,0x7D63,0x7D53,0x7D56,/* 0xE8-0xEF */
+	0x7D67,0x7D6A,0x7D4F,0x7D6D,0x7D5C,0x7D6B,0x7D52,0x7D54,/* 0xF0-0xF7 */
+	0x7D69,0x7D51,0x7D5F,0x7D4E,0x7F3E,0x7F3F,0x7F65,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_DB[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7F66,0x7FA2,0x7FA0,0x7FA1,0x7FD7,0x8051,0x804F,0x8050,/* 0x40-0x47 */
+	0x80FE,0x80D4,0x8143,0x814A,0x8152,0x814F,0x8147,0x813D,/* 0x48-0x4F */
+	0x814D,0x813A,0x81E6,0x81EE,0x81F7,0x81F8,0x81F9,0x8204,/* 0x50-0x57 */
+	0x823C,0x823D,0x823F,0x8275,0x833B,0x83CF,0x83F9,0x8423,/* 0x58-0x5F */
+	0x83C0,0x83E8,0x8412,0x83E7,0x83E4,0x83FC,0x83F6,0x8410,/* 0x60-0x67 */
+	0x83C6,0x83C8,0x83EB,0x83E3,0x83BF,0x8401,0x83DD,0x83E5,/* 0x68-0x6F */
+	0x83D8,0x83FF,0x83E1,0x83CB,0x83CE,0x83D6,0x83F5,0xF93E,/* 0x70-0x77 */
+	0x8409,0x840F,0x83DE,0x8411,0x8406,0x83C2,0x83F3,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x83D5,0x83FA,0x83C7,0x83D1,0x83EA,0x8413,0x83C3,/* 0xA0-0xA7 */
+	0x83EC,0x83EE,0x83C4,0x83FB,0x83D7,0x83E2,0x841B,0x83DB,/* 0xA8-0xAF */
+	0x83FE,0x86D8,0x86E2,0x86E6,0x86D3,0x86E3,0x86DA,0x86EA,/* 0xB0-0xB7 */
+	0x86DD,0x86EB,0x86DC,0x86EC,0x86E9,0x86D7,0x86E8,0x86D1,/* 0xB8-0xBF */
+	0x8848,0x8856,0x8855,0x88BA,0x88D7,0x88B9,0x88B8,0x88C0,/* 0xC0-0xC7 */
+	0x88BE,0x88B6,0x88BC,0x88B7,0x88BD,0x88B2,0x8901,0x88C9,/* 0xC8-0xCF */
+	0x8995,0x8998,0x8997,0x89DD,0x89DA,0x89DB,0x8A4E,0x8A4D,/* 0xD0-0xD7 */
+	0x8A39,0x8A59,0x8A40,0x8A57,0x8A58,0x8A44,0x8A45,0x8A52,/* 0xD8-0xDF */
+	0x8A48,0x8A51,0x8A4A,0x8A4C,0x8A4F,0x8C5F,0x8C81,0x8C80,/* 0xE0-0xE7 */
+	0x8CBA,0x8CBE,0x8CB0,0x8CB9,0x8CB5,0x8D84,0x8D80,0x8D89,/* 0xE8-0xEF */
+	0x8DD8,0x8DD3,0x8DCD,0x8DC7,0x8DD6,0x8DDC,0x8DCF,0x8DD5,/* 0xF0-0xF7 */
+	0x8DD9,0x8DC8,0x8DD7,0x8DC5,0x8EEF,0x8EF7,0x8EFA,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_DC[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8EF9,0x8EE6,0x8EEE,0x8EE5,0x8EF5,0x8EE7,0x8EE8,0x8EF6,/* 0x40-0x47 */
+	0x8EEB,0x8EF1,0x8EEC,0x8EF4,0x8EE9,0x902D,0x9034,0x902F,/* 0x48-0x4F */
+	0x9106,0x912C,0x9104,0x90FF,0x90FC,0x9108,0x90F9,0x90FB,/* 0x50-0x57 */
+	0x9101,0x9100,0x9107,0x9105,0x9103,0x9161,0x9164,0x915F,/* 0x58-0x5F */
+	0x9162,0x9160,0x9201,0x920A,0x9225,0x9203,0x921A,0x9226,/* 0x60-0x67 */
+	0x920F,0x920C,0x9200,0x9212,0x91FF,0x91FD,0x9206,0x9204,/* 0x68-0x6F */
+	0x9227,0x9202,0x921C,0x9224,0x9219,0x9217,0x9205,0x9216,/* 0x70-0x77 */
+	0x957B,0x958D,0x958C,0x9590,0x9687,0x967E,0x9688,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x9689,0x9683,0x9680,0x96C2,0x96C8,0x96C3,0x96F1,/* 0xA0-0xA7 */
+	0x96F0,0x976C,0x9770,0x976E,0x9807,0x98A9,0x98EB,0x9CE6,/* 0xA8-0xAF */
+	0x9EF9,0x4E83,0x4E84,0x4EB6,0x50BD,0x50BF,0x50C6,0x50AE,/* 0xB0-0xB7 */
+	0x50C4,0x50CA,0x50B4,0x50C8,0x50C2,0x50B0,0x50C1,0x50BA,/* 0xB8-0xBF */
+	0x50B1,0x50CB,0x50C9,0x50B6,0x50B8,0x51D7,0x527A,0x5278,/* 0xC0-0xC7 */
+	0x527B,0x527C,0x55C3,0x55DB,0x55CC,0x55D0,0x55CB,0x55CA,/* 0xC8-0xCF */
+	0x55DD,0x55C0,0x55D4,0x55C4,0x55E9,0x55BF,0x55D2,0x558D,/* 0xD0-0xD7 */
+	0x55CF,0x55D5,0x55E2,0x55D6,0x55C8,0x55F2,0x55CD,0x55D9,/* 0xD8-0xDF */
+	0x55C2,0x5714,0x5853,0x5868,0x5864,0x584F,0x584D,0x5849,/* 0xE0-0xE7 */
+	0x586F,0x5855,0x584E,0x585D,0x5859,0x5865,0x585B,0x583D,/* 0xE8-0xEF */
+	0x5863,0x5871,0x58FC,0x5AC7,0x5AC4,0x5ACB,0x5ABA,0x5AB8,/* 0xF0-0xF7 */
+	0x5AB1,0x5AB5,0x5AB0,0x5ABF,0x5AC8,0x5ABB,0x5AC6,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_DD[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x5AB7,0x5AC0,0x5ACA,0x5AB4,0x5AB6,0x5ACD,0x5AB9,0x5A90,/* 0x40-0x47 */
+	0x5BD6,0x5BD8,0x5BD9,0x5C1F,0x5C33,0x5D71,0x5D63,0x5D4A,/* 0x48-0x4F */
+	0x5D65,0x5D72,0x5D6C,0x5D5E,0x5D68,0x5D67,0x5D62,0x5DF0,/* 0x50-0x57 */
+	0x5E4F,0x5E4E,0x5E4A,0x5E4D,0x5E4B,0x5EC5,0x5ECC,0x5EC6,/* 0x58-0x5F */
+	0x5ECB,0x5EC7,0x5F40,0x5FAF,0x5FAD,0x60F7,0x6149,0x614A,/* 0x60-0x67 */
+	0x612B,0x6145,0x6136,0x6132,0x612E,0x6146,0x612F,0x614F,/* 0x68-0x6F */
+	0x6129,0x6140,0x6220,0x9168,0x6223,0x6225,0x6224,0x63C5,/* 0x70-0x77 */
+	0x63F1,0x63EB,0x6410,0x6412,0x6409,0x6420,0x6424,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x6433,0x6443,0x641F,0x6415,0x6418,0x6439,0x6437,/* 0xA0-0xA7 */
+	0x6422,0x6423,0x640C,0x6426,0x6430,0x6428,0x6441,0x6435,/* 0xA8-0xAF */
+	0x642F,0x640A,0x641A,0x6440,0x6425,0x6427,0x640B,0x63E7,/* 0xB0-0xB7 */
+	0x641B,0x642E,0x6421,0x640E,0x656F,0x6592,0x65D3,0x6686,/* 0xB8-0xBF */
+	0x668C,0x6695,0x6690,0x668B,0x668A,0x6699,0x6694,0x6678,/* 0xC0-0xC7 */
+	0x6720,0x6966,0x695F,0x6938,0x694E,0x6962,0x6971,0x693F,/* 0xC8-0xCF */
+	0x6945,0x696A,0x6939,0x6942,0x6957,0x6959,0x697A,0x6948,/* 0xD0-0xD7 */
+	0x6949,0x6935,0x696C,0x6933,0x693D,0x6965,0x68F0,0x6978,/* 0xD8-0xDF */
+	0x6934,0x6969,0x6940,0x696F,0x6944,0x6976,0x6958,0x6941,/* 0xE0-0xE7 */
+	0x6974,0x694C,0x693B,0x694B,0x6937,0x695C,0x694F,0x6951,/* 0xE8-0xEF */
+	0x6932,0x6952,0x692F,0x697B,0x693C,0x6B46,0x6B45,0x6B43,/* 0xF0-0xF7 */
+	0x6B42,0x6B48,0x6B41,0x6B9B,0xFA0D,0x6BFB,0x6BFC,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_DE[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6BF9,0x6BF7,0x6BF8,0x6E9B,0x6ED6,0x6EC8,0x6E8F,0x6EC0,/* 0x40-0x47 */
+	0x6E9F,0x6E93,0x6E94,0x6EA0,0x6EB1,0x6EB9,0x6EC6,0x6ED2,/* 0x48-0x4F */
+	0x6EBD,0x6EC1,0x6E9E,0x6EC9,0x6EB7,0x6EB0,0x6ECD,0x6EA6,/* 0x50-0x57 */
+	0x6ECF,0x6EB2,0x6EBE,0x6EC3,0x6EDC,0x6ED8,0x6E99,0x6E92,/* 0x58-0x5F */
+	0x6E8E,0x6E8D,0x6EA4,0x6EA1,0x6EBF,0x6EB3,0x6ED0,0x6ECA,/* 0x60-0x67 */
+	0x6E97,0x6EAE,0x6EA3,0x7147,0x7154,0x7152,0x7163,0x7160,/* 0x68-0x6F */
+	0x7141,0x715D,0x7162,0x7172,0x7178,0x716A,0x7161,0x7142,/* 0x70-0x77 */
+	0x7158,0x7143,0x714B,0x7170,0x715F,0x7150,0x7153,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x7144,0x714D,0x715A,0x724F,0x728D,0x728C,0x7291,/* 0xA0-0xA7 */
+	0x7290,0x728E,0x733C,0x7342,0x733B,0x733A,0x7340,0x734A,/* 0xA8-0xAF */
+	0x7349,0x7444,0x744A,0x744B,0x7452,0x7451,0x7457,0x7440,/* 0xB0-0xB7 */
+	0x744F,0x7450,0x744E,0x7442,0x7446,0x744D,0x7454,0x74E1,/* 0xB8-0xBF */
+	0x74FF,0x74FE,0x74FD,0x751D,0x7579,0x7577,0x6983,0x75EF,/* 0xC0-0xC7 */
+	0x760F,0x7603,0x75F7,0x75FE,0x75FC,0x75F9,0x75F8,0x7610,/* 0xC8-0xCF */
+	0x75FB,0x75F6,0x75ED,0x75F5,0x75FD,0x7699,0x76B5,0x76DD,/* 0xD0-0xD7 */
+	0x7755,0x775F,0x7760,0x7752,0x7756,0x775A,0x7769,0x7767,/* 0xD8-0xDF */
+	0x7754,0x7759,0x776D,0x77E0,0x7887,0x789A,0x7894,0x788F,/* 0xE0-0xE7 */
+	0x7884,0x7895,0x7885,0x7886,0x78A1,0x7883,0x7879,0x7899,/* 0xE8-0xEF */
+	0x7880,0x7896,0x787B,0x797C,0x7982,0x797D,0x7979,0x7A11,/* 0xF0-0xF7 */
+	0x7A18,0x7A19,0x7A12,0x7A17,0x7A15,0x7A22,0x7A13,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_DF[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7A1B,0x7A10,0x7AA3,0x7AA2,0x7A9E,0x7AEB,0x7B66,0x7B64,/* 0x40-0x47 */
+	0x7B6D,0x7B74,0x7B69,0x7B72,0x7B65,0x7B73,0x7B71,0x7B70,/* 0x48-0x4F */
+	0x7B61,0x7B78,0x7B76,0x7B63,0x7CB2,0x7CB4,0x7CAF,0x7D88,/* 0x50-0x57 */
+	0x7D86,0x7D80,0x7D8D,0x7D7F,0x7D85,0x7D7A,0x7D8E,0x7D7B,/* 0x58-0x5F */
+	0x7D83,0x7D7C,0x7D8C,0x7D94,0x7D84,0x7D7D,0x7D92,0x7F6D,/* 0x60-0x67 */
+	0x7F6B,0x7F67,0x7F68,0x7F6C,0x7FA6,0x7FA5,0x7FA7,0x7FDB,/* 0x68-0x6F */
+	0x7FDC,0x8021,0x8164,0x8160,0x8177,0x815C,0x8169,0x815B,/* 0x70-0x77 */
+	0x8162,0x8172,0x6721,0x815E,0x8176,0x8167,0x816F,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x8144,0x8161,0x821D,0x8249,0x8244,0x8240,0x8242,/* 0xA0-0xA7 */
+	0x8245,0x84F1,0x843F,0x8456,0x8476,0x8479,0x848F,0x848D,/* 0xA8-0xAF */
+	0x8465,0x8451,0x8440,0x8486,0x8467,0x8430,0x844D,0x847D,/* 0xB0-0xB7 */
+	0x845A,0x8459,0x8474,0x8473,0x845D,0x8507,0x845E,0x8437,/* 0xB8-0xBF */
+	0x843A,0x8434,0x847A,0x8443,0x8478,0x8432,0x8445,0x8429,/* 0xC0-0xC7 */
+	0x83D9,0x844B,0x842F,0x8442,0x842D,0x845F,0x8470,0x8439,/* 0xC8-0xCF */
+	0x844E,0x844C,0x8452,0x846F,0x84C5,0x848E,0x843B,0x8447,/* 0xD0-0xD7 */
+	0x8436,0x8433,0x8468,0x847E,0x8444,0x842B,0x8460,0x8454,/* 0xD8-0xDF */
+	0x846E,0x8450,0x870B,0x8704,0x86F7,0x870C,0x86FA,0x86D6,/* 0xE0-0xE7 */
+	0x86F5,0x874D,0x86F8,0x870E,0x8709,0x8701,0x86F6,0x870D,/* 0xE8-0xEF */
+	0x8705,0x88D6,0x88CB,0x88CD,0x88CE,0x88DE,0x88DB,0x88DA,/* 0xF0-0xF7 */
+	0x88CC,0x88D0,0x8985,0x899B,0x89DF,0x89E5,0x89E4,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E0[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x89E1,0x89E0,0x89E2,0x89DC,0x89E6,0x8A76,0x8A86,0x8A7F,/* 0x40-0x47 */
+	0x8A61,0x8A3F,0x8A77,0x8A82,0x8A84,0x8A75,0x8A83,0x8A81,/* 0x48-0x4F */
+	0x8A74,0x8A7A,0x8C3C,0x8C4B,0x8C4A,0x8C65,0x8C64,0x8C66,/* 0x50-0x57 */
+	0x8C86,0x8C84,0x8C85,0x8CCC,0x8D68,0x8D69,0x8D91,0x8D8C,/* 0x58-0x5F */
+	0x8D8E,0x8D8F,0x8D8D,0x8D93,0x8D94,0x8D90,0x8D92,0x8DF0,/* 0x60-0x67 */
+	0x8DE0,0x8DEC,0x8DF1,0x8DEE,0x8DD0,0x8DE9,0x8DE3,0x8DE2,/* 0x68-0x6F */
+	0x8DE7,0x8DF2,0x8DEB,0x8DF4,0x8F06,0x8EFF,0x8F01,0x8F00,/* 0x70-0x77 */
+	0x8F05,0x8F07,0x8F08,0x8F02,0x8F0B,0x9052,0x903F,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x9044,0x9049,0x903D,0x9110,0x910D,0x910F,0x9111,/* 0xA0-0xA7 */
+	0x9116,0x9114,0x910B,0x910E,0x916E,0x916F,0x9248,0x9252,/* 0xA8-0xAF */
+	0x9230,0x923A,0x9266,0x9233,0x9265,0x925E,0x9283,0x922E,/* 0xB0-0xB7 */
+	0x924A,0x9246,0x926D,0x926C,0x924F,0x9260,0x9267,0x926F,/* 0xB8-0xBF */
+	0x9236,0x9261,0x9270,0x9231,0x9254,0x9263,0x9250,0x9272,/* 0xC0-0xC7 */
+	0x924E,0x9253,0x924C,0x9256,0x9232,0x959F,0x959C,0x959E,/* 0xC8-0xCF */
+	0x959B,0x9692,0x9693,0x9691,0x9697,0x96CE,0x96FA,0x96FD,/* 0xD0-0xD7 */
+	0x96F8,0x96F5,0x9773,0x9777,0x9778,0x9772,0x980F,0x980D,/* 0xD8-0xDF */
+	0x980E,0x98AC,0x98F6,0x98F9,0x99AF,0x99B2,0x99B0,0x99B5,/* 0xE0-0xE7 */
+	0x9AAD,0x9AAB,0x9B5B,0x9CEA,0x9CED,0x9CE7,0x9E80,0x9EFD,/* 0xE8-0xEF */
+	0x50E6,0x50D4,0x50D7,0x50E8,0x50F3,0x50DB,0x50EA,0x50DD,/* 0xF0-0xF7 */
+	0x50E4,0x50D3,0x50EC,0x50F0,0x50EF,0x50E3,0x50E0,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E1[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x51D8,0x5280,0x5281,0x52E9,0x52EB,0x5330,0x53AC,0x5627,/* 0x40-0x47 */
+	0x5615,0x560C,0x5612,0x55FC,0x560F,0x561C,0x5601,0x5613,/* 0x48-0x4F */
+	0x5602,0x55FA,0x561D,0x5604,0x55FF,0x55F9,0x5889,0x587C,/* 0x50-0x57 */
+	0x5890,0x5898,0x5886,0x5881,0x587F,0x5874,0x588B,0x587A,/* 0x58-0x5F */
+	0x5887,0x5891,0x588E,0x5876,0x5882,0x5888,0x587B,0x5894,/* 0x60-0x67 */
+	0x588F,0x58FE,0x596B,0x5ADC,0x5AEE,0x5AE5,0x5AD5,0x5AEA,/* 0x68-0x6F */
+	0x5ADA,0x5AED,0x5AEB,0x5AF3,0x5AE2,0x5AE0,0x5ADB,0x5AEC,/* 0x70-0x77 */
+	0x5ADE,0x5ADD,0x5AD9,0x5AE8,0x5ADF,0x5B77,0x5BE0,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x5BE3,0x5C63,0x5D82,0x5D80,0x5D7D,0x5D86,0x5D7A,/* 0xA0-0xA7 */
+	0x5D81,0x5D77,0x5D8A,0x5D89,0x5D88,0x5D7E,0x5D7C,0x5D8D,/* 0xA8-0xAF */
+	0x5D79,0x5D7F,0x5E58,0x5E59,0x5E53,0x5ED8,0x5ED1,0x5ED7,/* 0xB0-0xB7 */
+	0x5ECE,0x5EDC,0x5ED5,0x5ED9,0x5ED2,0x5ED4,0x5F44,0x5F43,/* 0xB8-0xBF */
+	0x5F6F,0x5FB6,0x612C,0x6128,0x6141,0x615E,0x6171,0x6173,/* 0xC0-0xC7 */
+	0x6152,0x6153,0x6172,0x616C,0x6180,0x6174,0x6154,0x617A,/* 0xC8-0xCF */
+	0x615B,0x6165,0x613B,0x616A,0x6161,0x6156,0x6229,0x6227,/* 0xD0-0xD7 */
+	0x622B,0x642B,0x644D,0x645B,0x645D,0x6474,0x6476,0x6472,/* 0xD8-0xDF */
+	0x6473,0x647D,0x6475,0x6466,0x64A6,0x644E,0x6482,0x645E,/* 0xE0-0xE7 */
+	0x645C,0x644B,0x6453,0x6460,0x6450,0x647F,0x643F,0x646C,/* 0xE8-0xEF */
+	0x646B,0x6459,0x6465,0x6477,0x6573,0x65A0,0x66A1,0x66A0,/* 0xF0-0xF7 */
+	0x669F,0x6705,0x6704,0x6722,0x69B1,0x69B6,0x69C9,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E2[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x69A0,0x69CE,0x6996,0x69B0,0x69AC,0x69BC,0x6991,0x6999,/* 0x40-0x47 */
+	0x698E,0x69A7,0x698D,0x69A9,0x69BE,0x69AF,0x69BF,0x69C4,/* 0x48-0x4F */
+	0x69BD,0x69A4,0x69D4,0x69B9,0x69CA,0x699A,0x69CF,0x69B3,/* 0x50-0x57 */
+	0x6993,0x69AA,0x69A1,0x699E,0x69D9,0x6997,0x6990,0x69C2,/* 0x58-0x5F */
+	0x69B5,0x69A5,0x69C6,0x6B4A,0x6B4D,0x6B4B,0x6B9E,0x6B9F,/* 0x60-0x67 */
+	0x6BA0,0x6BC3,0x6BC4,0x6BFE,0x6ECE,0x6EF5,0x6EF1,0x6F03,/* 0x68-0x6F */
+	0x6F25,0x6EF8,0x6F37,0x6EFB,0x6F2E,0x6F09,0x6F4E,0x6F19,/* 0x70-0x77 */
+	0x6F1A,0x6F27,0x6F18,0x6F3B,0x6F12,0x6EED,0x6F0A,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x6F36,0x6F73,0x6EF9,0x6EEE,0x6F2D,0x6F40,0x6F30,/* 0xA0-0xA7 */
+	0x6F3C,0x6F35,0x6EEB,0x6F07,0x6F0E,0x6F43,0x6F05,0x6EFD,/* 0xA8-0xAF */
+	0x6EF6,0x6F39,0x6F1C,0x6EFC,0x6F3A,0x6F1F,0x6F0D,0x6F1E,/* 0xB0-0xB7 */
+	0x6F08,0x6F21,0x7187,0x7190,0x7189,0x7180,0x7185,0x7182,/* 0xB8-0xBF */
+	0x718F,0x717B,0x7186,0x7181,0x7197,0x7244,0x7253,0x7297,/* 0xC0-0xC7 */
+	0x7295,0x7293,0x7343,0x734D,0x7351,0x734C,0x7462,0x7473,/* 0xC8-0xCF */
+	0x7471,0x7475,0x7472,0x7467,0x746E,0x7500,0x7502,0x7503,/* 0xD0-0xD7 */
+	0x757D,0x7590,0x7616,0x7608,0x760C,0x7615,0x7611,0x760A,/* 0xD8-0xDF */
+	0x7614,0x76B8,0x7781,0x777C,0x7785,0x7782,0x776E,0x7780,/* 0xE0-0xE7 */
+	0x776F,0x777E,0x7783,0x78B2,0x78AA,0x78B4,0x78AD,0x78A8,/* 0xE8-0xEF */
+	0x787E,0x78AB,0x789E,0x78A5,0x78A0,0x78AC,0x78A2,0x78A4,/* 0xF0-0xF7 */
+	0x7998,0x798A,0x798B,0x7996,0x7995,0x7994,0x7993,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E3[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7997,0x7988,0x7992,0x7990,0x7A2B,0x7A4A,0x7A30,0x7A2F,/* 0x40-0x47 */
+	0x7A28,0x7A26,0x7AA8,0x7AAB,0x7AAC,0x7AEE,0x7B88,0x7B9C,/* 0x48-0x4F */
+	0x7B8A,0x7B91,0x7B90,0x7B96,0x7B8D,0x7B8C,0x7B9B,0x7B8E,/* 0x50-0x57 */
+	0x7B85,0x7B98,0x5284,0x7B99,0x7BA4,0x7B82,0x7CBB,0x7CBF,/* 0x58-0x5F */
+	0x7CBC,0x7CBA,0x7DA7,0x7DB7,0x7DC2,0x7DA3,0x7DAA,0x7DC1,/* 0x60-0x67 */
+	0x7DC0,0x7DC5,0x7D9D,0x7DCE,0x7DC4,0x7DC6,0x7DCB,0x7DCC,/* 0x68-0x6F */
+	0x7DAF,0x7DB9,0x7D96,0x7DBC,0x7D9F,0x7DA6,0x7DAE,0x7DA9,/* 0x70-0x77 */
+	0x7DA1,0x7DC9,0x7F73,0x7FE2,0x7FE3,0x7FE5,0x7FDE,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x8024,0x805D,0x805C,0x8189,0x8186,0x8183,0x8187,/* 0xA0-0xA7 */
+	0x818D,0x818C,0x818B,0x8215,0x8497,0x84A4,0x84A1,0x849F,/* 0xA8-0xAF */
+	0x84BA,0x84CE,0x84C2,0x84AC,0x84AE,0x84AB,0x84B9,0x84B4,/* 0xB0-0xB7 */
+	0x84C1,0x84CD,0x84AA,0x849A,0x84B1,0x84D0,0x849D,0x84A7,/* 0xB8-0xBF */
+	0x84BB,0x84A2,0x8494,0x84C7,0x84CC,0x849B,0x84A9,0x84AF,/* 0xC0-0xC7 */
+	0x84A8,0x84D6,0x8498,0x84B6,0x84CF,0x84A0,0x84D7,0x84D4,/* 0xC8-0xCF */
+	0x84D2,0x84DB,0x84B0,0x8491,0x8661,0x8733,0x8723,0x8728,/* 0xD0-0xD7 */
+	0x876B,0x8740,0x872E,0x871E,0x8721,0x8719,0x871B,0x8743,/* 0xD8-0xDF */
+	0x872C,0x8741,0x873E,0x8746,0x8720,0x8732,0x872A,0x872D,/* 0xE0-0xE7 */
+	0x873C,0x8712,0x873A,0x8731,0x8735,0x8742,0x8726,0x8727,/* 0xE8-0xEF */
+	0x8738,0x8724,0x871A,0x8730,0x8711,0x88F7,0x88E7,0x88F1,/* 0xF0-0xF7 */
+	0x88F2,0x88FA,0x88FE,0x88EE,0x88FC,0x88F6,0x88FB,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E4[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x88F0,0x88EC,0x88EB,0x899D,0x89A1,0x899F,0x899E,0x89E9,/* 0x40-0x47 */
+	0x89EB,0x89E8,0x8AAB,0x8A99,0x8A8B,0x8A92,0x8A8F,0x8A96,/* 0x48-0x4F */
+	0x8C3D,0x8C68,0x8C69,0x8CD5,0x8CCF,0x8CD7,0x8D96,0x8E09,/* 0x50-0x57 */
+	0x8E02,0x8DFF,0x8E0D,0x8DFD,0x8E0A,0x8E03,0x8E07,0x8E06,/* 0x58-0x5F */
+	0x8E05,0x8DFE,0x8E00,0x8E04,0x8F10,0x8F11,0x8F0E,0x8F0D,/* 0x60-0x67 */
+	0x9123,0x911C,0x9120,0x9122,0x911F,0x911D,0x911A,0x9124,/* 0x68-0x6F */
+	0x9121,0x911B,0x917A,0x9172,0x9179,0x9173,0x92A5,0x92A4,/* 0x70-0x77 */
+	0x9276,0x929B,0x927A,0x92A0,0x9294,0x92AA,0x928D,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x92A6,0x929A,0x92AB,0x9279,0x9297,0x927F,0x92A3,/* 0xA0-0xA7 */
+	0x92EE,0x928E,0x9282,0x9295,0x92A2,0x927D,0x9288,0x92A1,/* 0xA8-0xAF */
+	0x928A,0x9286,0x928C,0x9299,0x92A7,0x927E,0x9287,0x92A9,/* 0xB0-0xB7 */
+	0x929D,0x928B,0x922D,0x969E,0x96A1,0x96FF,0x9758,0x977D,/* 0xB8-0xBF */
+	0x977A,0x977E,0x9783,0x9780,0x9782,0x977B,0x9784,0x9781,/* 0xC0-0xC7 */
+	0x977F,0x97CE,0x97CD,0x9816,0x98AD,0x98AE,0x9902,0x9900,/* 0xC8-0xCF */
+	0x9907,0x999D,0x999C,0x99C3,0x99B9,0x99BB,0x99BA,0x99C2,/* 0xD0-0xD7 */
+	0x99BD,0x99C7,0x9AB1,0x9AE3,0x9AE7,0x9B3E,0x9B3F,0x9B60,/* 0xD8-0xDF */
+	0x9B61,0x9B5F,0x9CF1,0x9CF2,0x9CF5,0x9EA7,0x50FF,0x5103,/* 0xE0-0xE7 */
+	0x5130,0x50F8,0x5106,0x5107,0x50F6,0x50FE,0x510B,0x510C,/* 0xE8-0xEF */
+	0x50FD,0x510A,0x528B,0x528C,0x52F1,0x52EF,0x5648,0x5642,/* 0xF0-0xF7 */
+	0x564C,0x5635,0x5641,0x564A,0x5649,0x5646,0x5658,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E5[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x565A,0x5640,0x5633,0x563D,0x562C,0x563E,0x5638,0x562A,/* 0x40-0x47 */
+	0x563A,0x571A,0x58AB,0x589D,0x58B1,0x58A0,0x58A3,0x58AF,/* 0x48-0x4F */
+	0x58AC,0x58A5,0x58A1,0x58FF,0x5AFF,0x5AF4,0x5AFD,0x5AF7,/* 0x50-0x57 */
+	0x5AF6,0x5B03,0x5AF8,0x5B02,0x5AF9,0x5B01,0x5B07,0x5B05,/* 0x58-0x5F */
+	0x5B0F,0x5C67,0x5D99,0x5D97,0x5D9F,0x5D92,0x5DA2,0x5D93,/* 0x60-0x67 */
+	0x5D95,0x5DA0,0x5D9C,0x5DA1,0x5D9A,0x5D9E,0x5E69,0x5E5D,/* 0x68-0x6F */
+	0x5E60,0x5E5C,0x7DF3,0x5EDB,0x5EDE,0x5EE1,0x5F49,0x5FB2,/* 0x70-0x77 */
+	0x618B,0x6183,0x6179,0x61B1,0x61B0,0x61A2,0x6189,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x619B,0x6193,0x61AF,0x61AD,0x619F,0x6192,0x61AA,/* 0xA0-0xA7 */
+	0x61A1,0x618D,0x6166,0x61B3,0x622D,0x646E,0x6470,0x6496,/* 0xA8-0xAF */
+	0x64A0,0x6485,0x6497,0x649C,0x648F,0x648B,0x648A,0x648C,/* 0xB0-0xB7 */
+	0x64A3,0x649F,0x6468,0x64B1,0x6498,0x6576,0x657A,0x6579,/* 0xB8-0xBF */
+	0x657B,0x65B2,0x65B3,0x66B5,0x66B0,0x66A9,0x66B2,0x66B7,/* 0xC0-0xC7 */
+	0x66AA,0x66AF,0x6A00,0x6A06,0x6A17,0x69E5,0x69F8,0x6A15,/* 0xC8-0xCF */
+	0x69F1,0x69E4,0x6A20,0x69FF,0x69EC,0x69E2,0x6A1B,0x6A1D,/* 0xD0-0xD7 */
+	0x69FE,0x6A27,0x69F2,0x69EE,0x6A14,0x69F7,0x69E7,0x6A40,/* 0xD8-0xDF */
+	0x6A08,0x69E6,0x69FB,0x6A0D,0x69FC,0x69EB,0x6A09,0x6A04,/* 0xE0-0xE7 */
+	0x6A18,0x6A25,0x6A0F,0x69F6,0x6A26,0x6A07,0x69F4,0x6A16,/* 0xE8-0xEF */
+	0x6B51,0x6BA5,0x6BA3,0x6BA2,0x6BA6,0x6C01,0x6C00,0x6BFF,/* 0xF0-0xF7 */
+	0x6C02,0x6F41,0x6F26,0x6F7E,0x6F87,0x6FC6,0x6F92,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E6[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6F8D,0x6F89,0x6F8C,0x6F62,0x6F4F,0x6F85,0x6F5A,0x6F96,/* 0x40-0x47 */
+	0x6F76,0x6F6C,0x6F82,0x6F55,0x6F72,0x6F52,0x6F50,0x6F57,/* 0x48-0x4F */
+	0x6F94,0x6F93,0x6F5D,0x6F00,0x6F61,0x6F6B,0x6F7D,0x6F67,/* 0x50-0x57 */
+	0x6F90,0x6F53,0x6F8B,0x6F69,0x6F7F,0x6F95,0x6F63,0x6F77,/* 0x58-0x5F */
+	0x6F6A,0x6F7B,0x71B2,0x71AF,0x719B,0x71B0,0x71A0,0x719A,/* 0x60-0x67 */
+	0x71A9,0x71B5,0x719D,0x71A5,0x719E,0x71A4,0x71A1,0x71AA,/* 0x68-0x6F */
+	0x719C,0x71A7,0x71B3,0x7298,0x729A,0x7358,0x7352,0x735E,/* 0x70-0x77 */
+	0x735F,0x7360,0x735D,0x735B,0x7361,0x735A,0x7359,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x7362,0x7487,0xF994,0x748A,0x7486,0x7481,0x747D,/* 0xA0-0xA7 */
+	0x7485,0x7488,0x747C,0x7479,0x7508,0x7507,0x757E,0x7625,/* 0xA8-0xAF */
+	0x761E,0x7619,0x761D,0x761C,0x7623,0x761A,0x7628,0x761B,/* 0xB0-0xB7 */
+	0x769C,0x769D,0x769E,0x769B,0x778D,0x778F,0x7789,0x7788,/* 0xB8-0xBF */
+	0x78CD,0x78BB,0x78CF,0x78CC,0x78D1,0x78CE,0x78D4,0x78C8,/* 0xC0-0xC7 */
+	0x78C3,0x78C4,0x78C9,0x799A,0x79A1,0x79A0,0x799C,0x79A2,/* 0xC8-0xCF */
+	0x799B,0x6B76,0x7A39,0x7AB2,0x7AB4,0x7AB3,0x7BB7,0x7BCB,/* 0xD0-0xD7 */
+	0x7BBE,0x7BAC,0x7BCE,0x7BAF,0x7BB9,0x7BCA,0x7BB5,0x7CC5,/* 0xD8-0xDF */
+	0x7CC8,0x7CCC,0x7CCB,0x7DF7,0x7DDB,0x7DEA,0x7DE7,0x7DD7,/* 0xE0-0xE7 */
+	0x7DE1,0x7E03,0x7DFA,0x7DE6,0x7DF6,0x7DF1,0x7DF0,0x7DEE,/* 0xE8-0xEF */
+	0x7DDF,0x7F76,0x7FAC,0x7FB0,0x7FAD,0x7FED,0x7FEB,0x7FEA,/* 0xF0-0xF7 */
+	0x7FEC,0x7FE6,0x7FE8,0x8064,0x8067,0x81A3,0x819F,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E7[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x819E,0x8195,0x81A2,0x8199,0x8197,0x8216,0x824F,0x8253,/* 0x40-0x47 */
+	0x8252,0x8250,0x824E,0x8251,0x8524,0x853B,0x850F,0x8500,/* 0x48-0x4F */
+	0x8529,0x850E,0x8509,0x850D,0x851F,0x850A,0x8527,0x851C,/* 0x50-0x57 */
+	0x84FB,0x852B,0x84FA,0x8508,0x850C,0x84F4,0x852A,0x84F2,/* 0x58-0x5F */
+	0x8515,0x84F7,0x84EB,0x84F3,0xF9C2,0x8512,0x84EA,0x84E9,/* 0x60-0x67 */
+	0x8516,0x84FE,0x8528,0x851D,0x852E,0x8502,0x84FD,0x851E,/* 0x68-0x6F */
+	0x84F6,0x8531,0x8526,0x84E7,0x84E8,0x84F0,0x84EF,0x84F9,/* 0x70-0x77 */
+	0x8518,0x8520,0x8530,0x850B,0x8519,0x852F,0x8662,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x8756,0x8763,0x8764,0x8777,0x87E1,0x8773,0x8758,/* 0xA0-0xA7 */
+	0x8754,0x875B,0x8752,0x8761,0x875A,0x8751,0x875E,0x876D,/* 0xA8-0xAF */
+	0x876A,0x8750,0x874E,0x875F,0x875D,0x876F,0x876C,0x877A,/* 0xB0-0xB7 */
+	0x876E,0x875C,0x8765,0x874F,0x877B,0x8775,0x8762,0x8767,/* 0xB8-0xBF */
+	0x8769,0x885A,0x8905,0x890C,0x8914,0x890B,0x8917,0x8918,/* 0xC0-0xC7 */
+	0x8919,0x8906,0x8916,0x8911,0x890E,0x8909,0x89A2,0x89A4,/* 0xC8-0xCF */
+	0x89A3,0x89ED,0x89F0,0x89EC,0x8ACF,0x8AC6,0x8AB8,0x8AD3,/* 0xD0-0xD7 */
+	0x8AD1,0x8AD4,0x8AD5,0x8ABB,0x8AD7,0x8ABE,0x8AC0,0x8AC5,/* 0xD8-0xDF */
+	0x8AD8,0x8AC3,0x8ABA,0x8ABD,0x8AD9,0x8C3E,0x8C4D,0x8C8F,/* 0xE0-0xE7 */
+	0x8CE5,0x8CDF,0x8CD9,0x8CE8,0x8CDA,0x8CDD,0x8CE7,0x8DA0,/* 0xE8-0xEF */
+	0x8D9C,0x8DA1,0x8D9B,0x8E20,0x8E23,0x8E25,0x8E24,0x8E2E,/* 0xF0-0xF7 */
+	0x8E15,0x8E1B,0x8E16,0x8E11,0x8E19,0x8E26,0x8E27,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E8[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8E14,0x8E12,0x8E18,0x8E13,0x8E1C,0x8E17,0x8E1A,0x8F2C,/* 0x40-0x47 */
+	0x8F24,0x8F18,0x8F1A,0x8F20,0x8F23,0x8F16,0x8F17,0x9073,/* 0x48-0x4F */
+	0x9070,0x906F,0x9067,0x906B,0x912F,0x912B,0x9129,0x912A,/* 0x50-0x57 */
+	0x9132,0x9126,0x912E,0x9185,0x9186,0x918A,0x9181,0x9182,/* 0x58-0x5F */
+	0x9184,0x9180,0x92D0,0x92C3,0x92C4,0x92C0,0x92D9,0x92B6,/* 0x60-0x67 */
+	0x92CF,0x92F1,0x92DF,0x92D8,0x92E9,0x92D7,0x92DD,0x92CC,/* 0x68-0x6F */
+	0x92EF,0x92C2,0x92E8,0x92CA,0x92C8,0x92CE,0x92E6,0x92CD,/* 0x70-0x77 */
+	0x92D5,0x92C9,0x92E0,0x92DE,0x92E7,0x92D1,0x92D3,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x92B5,0x92E1,0x92C6,0x92B4,0x957C,0x95AC,0x95AB,/* 0xA0-0xA7 */
+	0x95AE,0x95B0,0x96A4,0x96A2,0x96D3,0x9705,0x9708,0x9702,/* 0xA8-0xAF */
+	0x975A,0x978A,0x978E,0x9788,0x97D0,0x97CF,0x981E,0x981D,/* 0xB0-0xB7 */
+	0x9826,0x9829,0x9828,0x9820,0x981B,0x9827,0x98B2,0x9908,/* 0xB8-0xBF */
+	0x98FA,0x9911,0x9914,0x9916,0x9917,0x9915,0x99DC,0x99CD,/* 0xC0-0xC7 */
+	0x99CF,0x99D3,0x99D4,0x99CE,0x99C9,0x99D6,0x99D8,0x99CB,/* 0xC8-0xCF */
+	0x99D7,0x99CC,0x9AB3,0x9AEC,0x9AEB,0x9AF3,0x9AF2,0x9AF1,/* 0xD0-0xD7 */
+	0x9B46,0x9B43,0x9B67,0x9B74,0x9B71,0x9B66,0x9B76,0x9B75,/* 0xD8-0xDF */
+	0x9B70,0x9B68,0x9B64,0x9B6C,0x9CFC,0x9CFA,0x9CFD,0x9CFF,/* 0xE0-0xE7 */
+	0x9CF7,0x9D07,0x9D00,0x9CF9,0x9CFB,0x9D08,0x9D05,0x9D04,/* 0xE8-0xEF */
+	0x9E83,0x9ED3,0x9F0F,0x9F10,0x511C,0x5113,0x5117,0x511A,/* 0xF0-0xF7 */
+	0x5111,0xFA15,0x5334,0x53E1,0x5670,0x5660,0x566E,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_E9[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x5673,0x5666,0x5663,0x566D,0x5672,0x565E,0x5677,0x571C,/* 0x40-0x47 */
+	0x571B,0x58C8,0x58BD,0x58C9,0x58BF,0x58BA,0x58C2,0x58BC,/* 0x48-0x4F */
+	0x58C6,0x5B17,0x5B19,0x5B1B,0x5B21,0x5B14,0x5B13,0x5B10,/* 0x50-0x57 */
+	0x5B16,0x5B28,0x5B1A,0x5B20,0x5B1E,0x5BEF,0x5DAC,0x5DB1,/* 0x58-0x5F */
+	0x5DA9,0x5DA7,0x5DB5,0x5DB0,0x5DAE,0x5DAA,0x5DA8,0x5DB2,/* 0x60-0x67 */
+	0x5DAD,0x5DAF,0x5DB4,0x5E67,0x5E68,0x5E66,0x5E6F,0x5EE9,/* 0x68-0x6F */
+	0x5EE7,0x5EE6,0x5EE8,0x5EE5,0x5F4B,0x5FBC,0x619D,0x61A8,/* 0x70-0x77 */
+	0x6196,0x61C5,0x61B4,0x61C6,0x61C1,0x61CC,0x61BA,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x61BF,0x61B8,0x618C,0x64D7,0x64D6,0x64D0,0x64CF,/* 0xA0-0xA7 */
+	0x64C9,0x64BD,0x6489,0x64C3,0x64DB,0x64F3,0x64D9,0x6533,/* 0xA8-0xAF */
+	0x657F,0x657C,0x65A2,0x66C8,0x66BE,0x66C0,0x66CA,0x66CB,/* 0xB0-0xB7 */
+	0x66CF,0x66BD,0x66BB,0x66BA,0x66CC,0x6723,0x6A34,0x6A66,/* 0xB8-0xBF */
+	0x6A49,0x6A67,0x6A32,0x6A68,0x6A3E,0x6A5D,0x6A6D,0x6A76,/* 0xC0-0xC7 */
+	0x6A5B,0x6A51,0x6A28,0x6A5A,0x6A3B,0x6A3F,0x6A41,0x6A6A,/* 0xC8-0xCF */
+	0x6A64,0x6A50,0x6A4F,0x6A54,0x6A6F,0x6A69,0x6A60,0x6A3C,/* 0xD0-0xD7 */
+	0x6A5E,0x6A56,0x6A55,0x6A4D,0x6A4E,0x6A46,0x6B55,0x6B54,/* 0xD8-0xDF */
+	0x6B56,0x6BA7,0x6BAA,0x6BAB,0x6BC8,0x6BC7,0x6C04,0x6C03,/* 0xE0-0xE7 */
+	0x6C06,0x6FAD,0x6FCB,0x6FA3,0x6FC7,0x6FBC,0x6FCE,0x6FC8,/* 0xE8-0xEF */
+	0x6F5E,0x6FC4,0x6FBD,0x6F9E,0x6FCA,0x6FA8,0x7004,0x6FA5,/* 0xF0-0xF7 */
+	0x6FAE,0x6FBA,0x6FAC,0x6FAA,0x6FCF,0x6FBF,0x6FB8,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_EA[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6FA2,0x6FC9,0x6FAB,0x6FCD,0x6FAF,0x6FB2,0x6FB0,0x71C5,/* 0x40-0x47 */
+	0x71C2,0x71BF,0x71B8,0x71D6,0x71C0,0x71C1,0x71CB,0x71D4,/* 0x48-0x4F */
+	0x71CA,0x71C7,0x71CF,0x71BD,0x71D8,0x71BC,0x71C6,0x71DA,/* 0x50-0x57 */
+	0x71DB,0x729D,0x729E,0x7369,0x7366,0x7367,0x736C,0x7365,/* 0x58-0x5F */
+	0x736B,0x736A,0x747F,0x749A,0x74A0,0x7494,0x7492,0x7495,/* 0x60-0x67 */
+	0x74A1,0x750B,0x7580,0x762F,0x762D,0x7631,0x763D,0x7633,/* 0x68-0x6F */
+	0x763C,0x7635,0x7632,0x7630,0x76BB,0x76E6,0x779A,0x779D,/* 0x70-0x77 */
+	0x77A1,0x779C,0x779B,0x77A2,0x77A3,0x7795,0x7799,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x7797,0x78DD,0x78E9,0x78E5,0x78EA,0x78DE,0x78E3,/* 0xA0-0xA7 */
+	0x78DB,0x78E1,0x78E2,0x78ED,0x78DF,0x78E0,0x79A4,0x7A44,/* 0xA8-0xAF */
+	0x7A48,0x7A47,0x7AB6,0x7AB8,0x7AB5,0x7AB1,0x7AB7,0x7BDE,/* 0xB0-0xB7 */
+	0x7BE3,0x7BE7,0x7BDD,0x7BD5,0x7BE5,0x7BDA,0x7BE8,0x7BF9,/* 0xB8-0xBF */
+	0x7BD4,0x7BEA,0x7BE2,0x7BDC,0x7BEB,0x7BD8,0x7BDF,0x7CD2,/* 0xC0-0xC7 */
+	0x7CD4,0x7CD7,0x7CD0,0x7CD1,0x7E12,0x7E21,0x7E17,0x7E0C,/* 0xC8-0xCF */
+	0x7E1F,0x7E20,0x7E13,0x7E0E,0x7E1C,0x7E15,0x7E1A,0x7E22,/* 0xD0-0xD7 */
+	0x7E0B,0x7E0F,0x7E16,0x7E0D,0x7E14,0x7E25,0x7E24,0x7F43,/* 0xD8-0xDF */
+	0x7F7B,0x7F7C,0x7F7A,0x7FB1,0x7FEF,0x802A,0x8029,0x806C,/* 0xE0-0xE7 */
+	0x81B1,0x81A6,0x81AE,0x81B9,0x81B5,0x81AB,0x81B0,0x81AC,/* 0xE8-0xEF */
+	0x81B4,0x81B2,0x81B7,0x81A7,0x81F2,0x8255,0x8256,0x8257,/* 0xF0-0xF7 */
+	0x8556,0x8545,0x856B,0x854D,0x8553,0x8561,0x8558,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_EB[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8540,0x8546,0x8564,0x8541,0x8562,0x8544,0x8551,0x8547,/* 0x40-0x47 */
+	0x8563,0x853E,0x855B,0x8571,0x854E,0x856E,0x8575,0x8555,/* 0x48-0x4F */
+	0x8567,0x8560,0x858C,0x8566,0x855D,0x8554,0x8565,0x856C,/* 0x50-0x57 */
+	0x8663,0x8665,0x8664,0x879B,0x878F,0x8797,0x8793,0x8792,/* 0x58-0x5F */
+	0x8788,0x8781,0x8796,0x8798,0x8779,0x8787,0x87A3,0x8785,/* 0x60-0x67 */
+	0x8790,0x8791,0x879D,0x8784,0x8794,0x879C,0x879A,0x8789,/* 0x68-0x6F */
+	0x891E,0x8926,0x8930,0x892D,0x892E,0x8927,0x8931,0x8922,/* 0x70-0x77 */
+	0x8929,0x8923,0x892F,0x892C,0x891F,0x89F1,0x8AE0,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x8AE2,0x8AF2,0x8AF4,0x8AF5,0x8ADD,0x8B14,0x8AE4,/* 0xA0-0xA7 */
+	0x8ADF,0x8AF0,0x8AC8,0x8ADE,0x8AE1,0x8AE8,0x8AFF,0x8AEF,/* 0xA8-0xAF */
+	0x8AFB,0x8C91,0x8C92,0x8C90,0x8CF5,0x8CEE,0x8CF1,0x8CF0,/* 0xB0-0xB7 */
+	0x8CF3,0x8D6C,0x8D6E,0x8DA5,0x8DA7,0x8E33,0x8E3E,0x8E38,/* 0xB8-0xBF */
+	0x8E40,0x8E45,0x8E36,0x8E3C,0x8E3D,0x8E41,0x8E30,0x8E3F,/* 0xC0-0xC7 */
+	0x8EBD,0x8F36,0x8F2E,0x8F35,0x8F32,0x8F39,0x8F37,0x8F34,/* 0xC8-0xCF */
+	0x9076,0x9079,0x907B,0x9086,0x90FA,0x9133,0x9135,0x9136,/* 0xD0-0xD7 */
+	0x9193,0x9190,0x9191,0x918D,0x918F,0x9327,0x931E,0x9308,/* 0xD8-0xDF */
+	0x931F,0x9306,0x930F,0x937A,0x9338,0x933C,0x931B,0x9323,/* 0xE0-0xE7 */
+	0x9312,0x9301,0x9346,0x932D,0x930E,0x930D,0x92CB,0x931D,/* 0xE8-0xEF */
+	0x92FA,0x9325,0x9313,0x92F9,0x92F7,0x9334,0x9302,0x9324,/* 0xF0-0xF7 */
+	0x92FF,0x9329,0x9339,0x9335,0x932A,0x9314,0x930C,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_EC[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x930B,0x92FE,0x9309,0x9300,0x92FB,0x9316,0x95BC,0x95CD,/* 0x40-0x47 */
+	0x95BE,0x95B9,0x95BA,0x95B6,0x95BF,0x95B5,0x95BD,0x96A9,/* 0x48-0x4F */
+	0x96D4,0x970B,0x9712,0x9710,0x9799,0x9797,0x9794,0x97F0,/* 0x50-0x57 */
+	0x97F8,0x9835,0x982F,0x9832,0x9924,0x991F,0x9927,0x9929,/* 0x58-0x5F */
+	0x999E,0x99EE,0x99EC,0x99E5,0x99E4,0x99F0,0x99E3,0x99EA,/* 0x60-0x67 */
+	0x99E9,0x99E7,0x9AB9,0x9ABF,0x9AB4,0x9ABB,0x9AF6,0x9AFA,/* 0x68-0x6F */
+	0x9AF9,0x9AF7,0x9B33,0x9B80,0x9B85,0x9B87,0x9B7C,0x9B7E,/* 0x70-0x77 */
+	0x9B7B,0x9B82,0x9B93,0x9B92,0x9B90,0x9B7A,0x9B95,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x9B7D,0x9B88,0x9D25,0x9D17,0x9D20,0x9D1E,0x9D14,/* 0xA0-0xA7 */
+	0x9D29,0x9D1D,0x9D18,0x9D22,0x9D10,0x9D19,0x9D1F,0x9E88,/* 0xA8-0xAF */
+	0x9E86,0x9E87,0x9EAE,0x9EAD,0x9ED5,0x9ED6,0x9EFA,0x9F12,/* 0xB0-0xB7 */
+	0x9F3D,0x5126,0x5125,0x5122,0x5124,0x5120,0x5129,0x52F4,/* 0xB8-0xBF */
+	0x5693,0x568C,0x568D,0x5686,0x5684,0x5683,0x567E,0x5682,/* 0xC0-0xC7 */
+	0x567F,0x5681,0x58D6,0x58D4,0x58CF,0x58D2,0x5B2D,0x5B25,/* 0xC8-0xCF */
+	0x5B32,0x5B23,0x5B2C,0x5B27,0x5B26,0x5B2F,0x5B2E,0x5B7B,/* 0xD0-0xD7 */
+	0x5BF1,0x5BF2,0x5DB7,0x5E6C,0x5E6A,0x5FBE,0x5FBB,0x61C3,/* 0xD8-0xDF */
+	0x61B5,0x61BC,0x61E7,0x61E0,0x61E5,0x61E4,0x61E8,0x61DE,/* 0xE0-0xE7 */
+	0x64EF,0x64E9,0x64E3,0x64EB,0x64E4,0x64E8,0x6581,0x6580,/* 0xE8-0xEF */
+	0x65B6,0x65DA,0x66D2,0x6A8D,0x6A96,0x6A81,0x6AA5,0x6A89,/* 0xF0-0xF7 */
+	0x6A9F,0x6A9B,0x6AA1,0x6A9E,0x6A87,0x6A93,0x6A8E,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_ED[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x6A95,0x6A83,0x6AA8,0x6AA4,0x6A91,0x6A7F,0x6AA6,0x6A9A,/* 0x40-0x47 */
+	0x6A85,0x6A8C,0x6A92,0x6B5B,0x6BAD,0x6C09,0x6FCC,0x6FA9,/* 0x48-0x4F */
+	0x6FF4,0x6FD4,0x6FE3,0x6FDC,0x6FED,0x6FE7,0x6FE6,0x6FDE,/* 0x50-0x57 */
+	0x6FF2,0x6FDD,0x6FE2,0x6FE8,0x71E1,0x71F1,0x71E8,0x71F2,/* 0x58-0x5F */
+	0x71E4,0x71F0,0x71E2,0x7373,0x736E,0x736F,0x7497,0x74B2,/* 0x60-0x67 */
+	0x74AB,0x7490,0x74AA,0x74AD,0x74B1,0x74A5,0x74AF,0x7510,/* 0x68-0x6F */
+	0x7511,0x7512,0x750F,0x7584,0x7643,0x7648,0x7649,0x7647,/* 0x70-0x77 */
+	0x76A4,0x76E9,0x77B5,0x77AB,0x77B2,0x77B7,0x77B6,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x77B4,0x77B1,0x77A8,0x77F0,0x78F3,0x78FD,0x7902,/* 0xA0-0xA7 */
+	0xF964,0x78FC,0x78F2,0x7905,0x78F9,0x78FE,0x7904,0x79AB,/* 0xA8-0xAF */
+	0x79A8,0x7A5C,0x7A5B,0x7A56,0x7A58,0x7A54,0x7A5A,0x7ABE,/* 0xB0-0xB7 */
+	0x7AC0,0x7AC1,0x7C05,0x7C0F,0x7BF2,0x7C00,0x7BFF,0x7BFB,/* 0xB8-0xBF */
+	0x7C0E,0x7BF4,0x7C0B,0x7BF3,0x7C02,0x7C09,0x7C03,0x7C01,/* 0xC0-0xC7 */
+	0x7BF8,0x7BFD,0x7C06,0x7BF0,0x7BF1,0x7C10,0x7C0A,0x7CE8,/* 0xC8-0xCF */
+	0x7E2D,0x7E3C,0x7E42,0x7E33,0x9848,0x7E38,0x7E2A,0x7E49,/* 0xD0-0xD7 */
+	0x7E40,0x7E47,0x7E29,0x7E4C,0x7E30,0x7E3B,0x7E36,0x7E44,/* 0xD8-0xDF */
+	0x7E3A,0x7F45,0x7F7F,0x7F7E,0x7F7D,0x7FF4,0x7FF2,0x802C,/* 0xE0-0xE7 */
+	0x81BB,0x81C4,0x81CC,0x81CA,0x81C5,0x81C7,0x81BC,0x81E9,/* 0xE8-0xEF */
+	0x825B,0x825A,0x825C,0x8583,0x8580,0x858F,0x85A7,0x8595,/* 0xF0-0xF7 */
+	0x85A0,0x858B,0x85A3,0x857B,0x85A4,0x859A,0x859E,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_EE[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8577,0x857C,0x8589,0x85A1,0x857A,0x8578,0x8557,0x858E,/* 0x40-0x47 */
+	0x8596,0x8586,0x858D,0x8599,0x859D,0x8581,0x85A2,0x8582,/* 0x48-0x4F */
+	0x8588,0x8585,0x8579,0x8576,0x8598,0x8590,0x859F,0x8668,/* 0x50-0x57 */
+	0x87BE,0x87AA,0x87AD,0x87C5,0x87B0,0x87AC,0x87B9,0x87B5,/* 0x58-0x5F */
+	0x87BC,0x87AE,0x87C9,0x87C3,0x87C2,0x87CC,0x87B7,0x87AF,/* 0x60-0x67 */
+	0x87C4,0x87CA,0x87B4,0x87B6,0x87BF,0x87B8,0x87BD,0x87DE,/* 0x68-0x6F */
+	0x87B2,0x8935,0x8933,0x893C,0x893E,0x8941,0x8952,0x8937,/* 0x70-0x77 */
+	0x8942,0x89AD,0x89AF,0x89AE,0x89F2,0x89F3,0x8B1E,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x8B18,0x8B16,0x8B11,0x8B05,0x8B0B,0x8B22,0x8B0F,/* 0xA0-0xA7 */
+	0x8B12,0x8B15,0x8B07,0x8B0D,0x8B08,0x8B06,0x8B1C,0x8B13,/* 0xA8-0xAF */
+	0x8B1A,0x8C4F,0x8C70,0x8C72,0x8C71,0x8C6F,0x8C95,0x8C94,/* 0xB0-0xB7 */
+	0x8CF9,0x8D6F,0x8E4E,0x8E4D,0x8E53,0x8E50,0x8E4C,0x8E47,/* 0xB8-0xBF */
+	0x8F43,0x8F40,0x9085,0x907E,0x9138,0x919A,0x91A2,0x919B,/* 0xC0-0xC7 */
+	0x9199,0x919F,0x91A1,0x919D,0x91A0,0x93A1,0x9383,0x93AF,/* 0xC8-0xCF */
+	0x9364,0x9356,0x9347,0x937C,0x9358,0x935C,0x9376,0x9349,/* 0xD0-0xD7 */
+	0x9350,0x9351,0x9360,0x936D,0x938F,0x934C,0x936A,0x9379,/* 0xD8-0xDF */
+	0x9357,0x9355,0x9352,0x934F,0x9371,0x9377,0x937B,0x9361,/* 0xE0-0xE7 */
+	0x935E,0x9363,0x9367,0x9380,0x934E,0x9359,0x95C7,0x95C0,/* 0xE8-0xEF */
+	0x95C9,0x95C3,0x95C5,0x95B7,0x96AE,0x96B0,0x96AC,0x9720,/* 0xF0-0xF7 */
+	0x971F,0x9718,0x971D,0x9719,0x979A,0x97A1,0x979C,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_EF[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x979E,0x979D,0x97D5,0x97D4,0x97F1,0x9841,0x9844,0x984A,/* 0x40-0x47 */
+	0x9849,0x9845,0x9843,0x9925,0x992B,0x992C,0x992A,0x9933,/* 0x48-0x4F */
+	0x9932,0x992F,0x992D,0x9931,0x9930,0x9998,0x99A3,0x99A1,/* 0x50-0x57 */
+	0x9A02,0x99FA,0x99F4,0x99F7,0x99F9,0x99F8,0x99F6,0x99FB,/* 0x58-0x5F */
+	0x99FD,0x99FE,0x99FC,0x9A03,0x9ABE,0x9AFE,0x9AFD,0x9B01,/* 0x60-0x67 */
+	0x9AFC,0x9B48,0x9B9A,0x9BA8,0x9B9E,0x9B9B,0x9BA6,0x9BA1,/* 0x68-0x6F */
+	0x9BA5,0x9BA4,0x9B86,0x9BA2,0x9BA0,0x9BAF,0x9D33,0x9D41,/* 0x70-0x77 */
+	0x9D67,0x9D36,0x9D2E,0x9D2F,0x9D31,0x9D38,0x9D30,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x9D45,0x9D42,0x9D43,0x9D3E,0x9D37,0x9D40,0x9D3D,/* 0xA0-0xA7 */
+	0x7FF5,0x9D2D,0x9E8A,0x9E89,0x9E8D,0x9EB0,0x9EC8,0x9EDA,/* 0xA8-0xAF */
+	0x9EFB,0x9EFF,0x9F24,0x9F23,0x9F22,0x9F54,0x9FA0,0x5131,/* 0xB0-0xB7 */
+	0x512D,0x512E,0x5698,0x569C,0x5697,0x569A,0x569D,0x5699,/* 0xB8-0xBF */
+	0x5970,0x5B3C,0x5C69,0x5C6A,0x5DC0,0x5E6D,0x5E6E,0x61D8,/* 0xC0-0xC7 */
+	0x61DF,0x61ED,0x61EE,0x61F1,0x61EA,0x61F0,0x61EB,0x61D6,/* 0xC8-0xCF */
+	0x61E9,0x64FF,0x6504,0x64FD,0x64F8,0x6501,0x6503,0x64FC,/* 0xD0-0xD7 */
+	0x6594,0x65DB,0x66DA,0x66DB,0x66D8,0x6AC5,0x6AB9,0x6ABD,/* 0xD8-0xDF */
+	0x6AE1,0x6AC6,0x6ABA,0x6AB6,0x6AB7,0x6AC7,0x6AB4,0x6AAD,/* 0xE0-0xE7 */
+	0x6B5E,0x6BC9,0x6C0B,0x7007,0x700C,0x700D,0x7001,0x7005,/* 0xE8-0xEF */
+	0x7014,0x700E,0x6FFF,0x7000,0x6FFB,0x7026,0x6FFC,0x6FF7,/* 0xF0-0xF7 */
+	0x700A,0x7201,0x71FF,0x71F9,0x7203,0x71FD,0x7376,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F0[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x74B8,0x74C0,0x74B5,0x74C1,0x74BE,0x74B6,0x74BB,0x74C2,/* 0x40-0x47 */
+	0x7514,0x7513,0x765C,0x7664,0x7659,0x7650,0x7653,0x7657,/* 0x48-0x4F */
+	0x765A,0x76A6,0x76BD,0x76EC,0x77C2,0x77BA,0x78FF,0x790C,/* 0x50-0x57 */
+	0x7913,0x7914,0x7909,0x7910,0x7912,0x7911,0x79AD,0x79AC,/* 0x58-0x5F */
+	0x7A5F,0x7C1C,0x7C29,0x7C19,0x7C20,0x7C1F,0x7C2D,0x7C1D,/* 0x60-0x67 */
+	0x7C26,0x7C28,0x7C22,0x7C25,0x7C30,0x7E5C,0x7E50,0x7E56,/* 0x68-0x6F */
+	0x7E63,0x7E58,0x7E62,0x7E5F,0x7E51,0x7E60,0x7E57,0x7E53,/* 0x70-0x77 */
+	0x7FB5,0x7FB3,0x7FF7,0x7FF8,0x8075,0x81D1,0x81D2,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x81D0,0x825F,0x825E,0x85B4,0x85C6,0x85C0,0x85C3,/* 0xA0-0xA7 */
+	0x85C2,0x85B3,0x85B5,0x85BD,0x85C7,0x85C4,0x85BF,0x85CB,/* 0xA8-0xAF */
+	0x85CE,0x85C8,0x85C5,0x85B1,0x85B6,0x85D2,0x8624,0x85B8,/* 0xB0-0xB7 */
+	0x85B7,0x85BE,0x8669,0x87E7,0x87E6,0x87E2,0x87DB,0x87EB,/* 0xB8-0xBF */
+	0x87EA,0x87E5,0x87DF,0x87F3,0x87E4,0x87D4,0x87DC,0x87D3,/* 0xC0-0xC7 */
+	0x87ED,0x87D8,0x87E3,0x87A4,0x87D7,0x87D9,0x8801,0x87F4,/* 0xC8-0xCF */
+	0x87E8,0x87DD,0x8953,0x894B,0x894F,0x894C,0x8946,0x8950,/* 0xD0-0xD7 */
+	0x8951,0x8949,0x8B2A,0x8B27,0x8B23,0x8B33,0x8B30,0x8B35,/* 0xD8-0xDF */
+	0x8B47,0x8B2F,0x8B3C,0x8B3E,0x8B31,0x8B25,0x8B37,0x8B26,/* 0xE0-0xE7 */
+	0x8B36,0x8B2E,0x8B24,0x8B3B,0x8B3D,0x8B3A,0x8C42,0x8C75,/* 0xE8-0xEF */
+	0x8C99,0x8C98,0x8C97,0x8CFE,0x8D04,0x8D02,0x8D00,0x8E5C,/* 0xF0-0xF7 */
+	0x8E62,0x8E60,0x8E57,0x8E56,0x8E5E,0x8E65,0x8E67,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F1[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8E5B,0x8E5A,0x8E61,0x8E5D,0x8E69,0x8E54,0x8F46,0x8F47,/* 0x40-0x47 */
+	0x8F48,0x8F4B,0x9128,0x913A,0x913B,0x913E,0x91A8,0x91A5,/* 0x48-0x4F */
+	0x91A7,0x91AF,0x91AA,0x93B5,0x938C,0x9392,0x93B7,0x939B,/* 0x50-0x57 */
+	0x939D,0x9389,0x93A7,0x938E,0x93AA,0x939E,0x93A6,0x9395,/* 0x58-0x5F */
+	0x9388,0x9399,0x939F,0x938D,0x93B1,0x9391,0x93B2,0x93A4,/* 0x60-0x67 */
+	0x93A8,0x93B4,0x93A3,0x93A5,0x95D2,0x95D3,0x95D1,0x96B3,/* 0x68-0x6F */
+	0x96D7,0x96DA,0x5DC2,0x96DF,0x96D8,0x96DD,0x9723,0x9722,/* 0x70-0x77 */
+	0x9725,0x97AC,0x97AE,0x97A8,0x97AB,0x97A4,0x97AA,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x97A2,0x97A5,0x97D7,0x97D9,0x97D6,0x97D8,0x97FA,/* 0xA0-0xA7 */
+	0x9850,0x9851,0x9852,0x98B8,0x9941,0x993C,0x993A,0x9A0F,/* 0xA8-0xAF */
+	0x9A0B,0x9A09,0x9A0D,0x9A04,0x9A11,0x9A0A,0x9A05,0x9A07,/* 0xB0-0xB7 */
+	0x9A06,0x9AC0,0x9ADC,0x9B08,0x9B04,0x9B05,0x9B29,0x9B35,/* 0xB8-0xBF */
+	0x9B4A,0x9B4C,0x9B4B,0x9BC7,0x9BC6,0x9BC3,0x9BBF,0x9BC1,/* 0xC0-0xC7 */
+	0x9BB5,0x9BB8,0x9BD3,0x9BB6,0x9BC4,0x9BB9,0x9BBD,0x9D5C,/* 0xC8-0xCF */
+	0x9D53,0x9D4F,0x9D4A,0x9D5B,0x9D4B,0x9D59,0x9D56,0x9D4C,/* 0xD0-0xD7 */
+	0x9D57,0x9D52,0x9D54,0x9D5F,0x9D58,0x9D5A,0x9E8E,0x9E8C,/* 0xD8-0xDF */
+	0x9EDF,0x9F01,0x9F00,0x9F16,0x9F25,0x9F2B,0x9F2A,0x9F29,/* 0xE0-0xE7 */
+	0x9F28,0x9F4C,0x9F55,0x5134,0x5135,0x5296,0x52F7,0x53B4,/* 0xE8-0xEF */
+	0x56AB,0x56AD,0x56A6,0x56A7,0x56AA,0x56AC,0x58DA,0x58DD,/* 0xF0-0xF7 */
+	0x58DB,0x5912,0x5B3D,0x5B3E,0x5B3F,0x5DC3,0x5E70,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F2[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x5FBF,0x61FB,0x6507,0x6510,0x650D,0x6509,0x650C,0x650E,/* 0x40-0x47 */
+	0x6584,0x65DE,0x65DD,0x66DE,0x6AE7,0x6AE0,0x6ACC,0x6AD1,/* 0x48-0x4F */
+	0x6AD9,0x6ACB,0x6ADF,0x6ADC,0x6AD0,0x6AEB,0x6ACF,0x6ACD,/* 0x50-0x57 */
+	0x6ADE,0x6B60,0x6BB0,0x6C0C,0x7019,0x7027,0x7020,0x7016,/* 0x58-0x5F */
+	0x702B,0x7021,0x7022,0x7023,0x7029,0x7017,0x7024,0x701C,/* 0x60-0x67 */
+	0x702A,0x720C,0x720A,0x7207,0x7202,0x7205,0x72A5,0x72A6,/* 0x68-0x6F */
+	0x72A4,0x72A3,0x72A1,0x74CB,0x74C5,0x74B7,0x74C3,0x7516,/* 0x70-0x77 */
+	0x7660,0x77C9,0x77CA,0x77C4,0x77F1,0x791D,0x791B,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x7921,0x791C,0x7917,0x791E,0x79B0,0x7A67,0x7A68,/* 0xA0-0xA7 */
+	0x7C33,0x7C3C,0x7C39,0x7C2C,0x7C3B,0x7CEC,0x7CEA,0x7E76,/* 0xA8-0xAF */
+	0x7E75,0x7E78,0x7E70,0x7E77,0x7E6F,0x7E7A,0x7E72,0x7E74,/* 0xB0-0xB7 */
+	0x7E68,0x7F4B,0x7F4A,0x7F83,0x7F86,0x7FB7,0x7FFD,0x7FFE,/* 0xB8-0xBF */
+	0x8078,0x81D7,0x81D5,0x8264,0x8261,0x8263,0x85EB,0x85F1,/* 0xC0-0xC7 */
+	0x85ED,0x85D9,0x85E1,0x85E8,0x85DA,0x85D7,0x85EC,0x85F2,/* 0xC8-0xCF */
+	0x85F8,0x85D8,0x85DF,0x85E3,0x85DC,0x85D1,0x85F0,0x85E6,/* 0xD0-0xD7 */
+	0x85EF,0x85DE,0x85E2,0x8800,0x87FA,0x8803,0x87F6,0x87F7,/* 0xD8-0xDF */
+	0x8809,0x880C,0x880B,0x8806,0x87FC,0x8808,0x87FF,0x880A,/* 0xE0-0xE7 */
+	0x8802,0x8962,0x895A,0x895B,0x8957,0x8961,0x895C,0x8958,/* 0xE8-0xEF */
+	0x895D,0x8959,0x8988,0x89B7,0x89B6,0x89F6,0x8B50,0x8B48,/* 0xF0-0xF7 */
+	0x8B4A,0x8B40,0x8B53,0x8B56,0x8B54,0x8B4B,0x8B55,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F3[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8B51,0x8B42,0x8B52,0x8B57,0x8C43,0x8C77,0x8C76,0x8C9A,/* 0x40-0x47 */
+	0x8D06,0x8D07,0x8D09,0x8DAC,0x8DAA,0x8DAD,0x8DAB,0x8E6D,/* 0x48-0x4F */
+	0x8E78,0x8E73,0x8E6A,0x8E6F,0x8E7B,0x8EC2,0x8F52,0x8F51,/* 0x50-0x57 */
+	0x8F4F,0x8F50,0x8F53,0x8FB4,0x9140,0x913F,0x91B0,0x91AD,/* 0x58-0x5F */
+	0x93DE,0x93C7,0x93CF,0x93C2,0x93DA,0x93D0,0x93F9,0x93EC,/* 0x60-0x67 */
+	0x93CC,0x93D9,0x93A9,0x93E6,0x93CA,0x93D4,0x93EE,0x93E3,/* 0x68-0x6F */
+	0x93D5,0x93C4,0x93CE,0x93C0,0x93D2,0x93E7,0x957D,0x95DA,/* 0x70-0x77 */
+	0x95DB,0x96E1,0x9729,0x972B,0x972C,0x9728,0x9726,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x97B3,0x97B7,0x97B6,0x97DD,0x97DE,0x97DF,0x985C,/* 0xA0-0xA7 */
+	0x9859,0x985D,0x9857,0x98BF,0x98BD,0x98BB,0x98BE,0x9948,/* 0xA8-0xAF */
+	0x9947,0x9943,0x99A6,0x99A7,0x9A1A,0x9A15,0x9A25,0x9A1D,/* 0xB0-0xB7 */
+	0x9A24,0x9A1B,0x9A22,0x9A20,0x9A27,0x9A23,0x9A1E,0x9A1C,/* 0xB8-0xBF */
+	0x9A14,0x9AC2,0x9B0B,0x9B0A,0x9B0E,0x9B0C,0x9B37,0x9BEA,/* 0xC0-0xC7 */
+	0x9BEB,0x9BE0,0x9BDE,0x9BE4,0x9BE6,0x9BE2,0x9BF0,0x9BD4,/* 0xC8-0xCF */
+	0x9BD7,0x9BEC,0x9BDC,0x9BD9,0x9BE5,0x9BD5,0x9BE1,0x9BDA,/* 0xD0-0xD7 */
+	0x9D77,0x9D81,0x9D8A,0x9D84,0x9D88,0x9D71,0x9D80,0x9D78,/* 0xD8-0xDF */
+	0x9D86,0x9D8B,0x9D8C,0x9D7D,0x9D6B,0x9D74,0x9D75,0x9D70,/* 0xE0-0xE7 */
+	0x9D69,0x9D85,0x9D73,0x9D7B,0x9D82,0x9D6F,0x9D79,0x9D7F,/* 0xE8-0xEF */
+	0x9D87,0x9D68,0x9E94,0x9E91,0x9EC0,0x9EFC,0x9F2D,0x9F40,/* 0xF0-0xF7 */
+	0x9F41,0x9F4D,0x9F56,0x9F57,0x9F58,0x5337,0x56B2,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F4[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x56B5,0x56B3,0x58E3,0x5B45,0x5DC6,0x5DC7,0x5EEE,0x5EEF,/* 0x40-0x47 */
+	0x5FC0,0x5FC1,0x61F9,0x6517,0x6516,0x6515,0x6513,0x65DF,/* 0x48-0x4F */
+	0x66E8,0x66E3,0x66E4,0x6AF3,0x6AF0,0x6AEA,0x6AE8,0x6AF9,/* 0x50-0x57 */
+	0x6AF1,0x6AEE,0x6AEF,0x703C,0x7035,0x702F,0x7037,0x7034,/* 0x58-0x5F */
+	0x7031,0x7042,0x7038,0x703F,0x703A,0x7039,0x7040,0x703B,/* 0x60-0x67 */
+	0x7033,0x7041,0x7213,0x7214,0x72A8,0x737D,0x737C,0x74BA,/* 0x68-0x6F */
+	0x76AB,0x76AA,0x76BE,0x76ED,0x77CC,0x77CE,0x77CF,0x77CD,/* 0x70-0x77 */
+	0x77F2,0x7925,0x7923,0x7927,0x7928,0x7924,0x7929,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x79B2,0x7A6E,0x7A6C,0x7A6D,0x7AF7,0x7C49,0x7C48,/* 0xA0-0xA7 */
+	0x7C4A,0x7C47,0x7C45,0x7CEE,0x7E7B,0x7E7E,0x7E81,0x7E80,/* 0xA8-0xAF */
+	0x7FBA,0x7FFF,0x8079,0x81DB,0x81D9,0x820B,0x8268,0x8269,/* 0xB0-0xB7 */
+	0x8622,0x85FF,0x8601,0x85FE,0x861B,0x8600,0x85F6,0x8604,/* 0xB8-0xBF */
+	0x8609,0x8605,0x860C,0x85FD,0x8819,0x8810,0x8811,0x8817,/* 0xC0-0xC7 */
+	0x8813,0x8816,0x8963,0x8966,0x89B9,0x89F7,0x8B60,0x8B6A,/* 0xC8-0xCF */
+	0x8B5D,0x8B68,0x8B63,0x8B65,0x8B67,0x8B6D,0x8DAE,0x8E86,/* 0xD0-0xD7 */
+	0x8E88,0x8E84,0x8F59,0x8F56,0x8F57,0x8F55,0x8F58,0x8F5A,/* 0xD8-0xDF */
+	0x908D,0x9143,0x9141,0x91B7,0x91B5,0x91B2,0x91B3,0x940B,/* 0xE0-0xE7 */
+	0x9413,0x93FB,0x9420,0x940F,0x9414,0x93FE,0x9415,0x9410,/* 0xE8-0xEF */
+	0x9428,0x9419,0x940D,0x93F5,0x9400,0x93F7,0x9407,0x940E,/* 0xF0-0xF7 */
+	0x9416,0x9412,0x93FA,0x9409,0x93F8,0x940A,0x93FF,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F5[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x93FC,0x940C,0x93F6,0x9411,0x9406,0x95DE,0x95E0,0x95DF,/* 0x40-0x47 */
+	0x972E,0x972F,0x97B9,0x97BB,0x97FD,0x97FE,0x9860,0x9862,/* 0x48-0x4F */
+	0x9863,0x985F,0x98C1,0x98C2,0x9950,0x994E,0x9959,0x994C,/* 0x50-0x57 */
+	0x994B,0x9953,0x9A32,0x9A34,0x9A31,0x9A2C,0x9A2A,0x9A36,/* 0x58-0x5F */
+	0x9A29,0x9A2E,0x9A38,0x9A2D,0x9AC7,0x9ACA,0x9AC6,0x9B10,/* 0x60-0x67 */
+	0x9B12,0x9B11,0x9C0B,0x9C08,0x9BF7,0x9C05,0x9C12,0x9BF8,/* 0x68-0x6F */
+	0x9C40,0x9C07,0x9C0E,0x9C06,0x9C17,0x9C14,0x9C09,0x9D9F,/* 0x70-0x77 */
+	0x9D99,0x9DA4,0x9D9D,0x9D92,0x9D98,0x9D90,0x9D9B,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x9DA0,0x9D94,0x9D9C,0x9DAA,0x9D97,0x9DA1,0x9D9A,/* 0xA0-0xA7 */
+	0x9DA2,0x9DA8,0x9D9E,0x9DA3,0x9DBF,0x9DA9,0x9D96,0x9DA6,/* 0xA8-0xAF */
+	0x9DA7,0x9E99,0x9E9B,0x9E9A,0x9EE5,0x9EE4,0x9EE7,0x9EE6,/* 0xB0-0xB7 */
+	0x9F30,0x9F2E,0x9F5B,0x9F60,0x9F5E,0x9F5D,0x9F59,0x9F91,/* 0xB8-0xBF */
+	0x513A,0x5139,0x5298,0x5297,0x56C3,0x56BD,0x56BE,0x5B48,/* 0xC0-0xC7 */
+	0x5B47,0x5DCB,0x5DCF,0x5EF1,0x61FD,0x651B,0x6B02,0x6AFC,/* 0xC8-0xCF */
+	0x6B03,0x6AF8,0x6B00,0x7043,0x7044,0x704A,0x7048,0x7049,/* 0xD0-0xD7 */
+	0x7045,0x7046,0x721D,0x721A,0x7219,0x737E,0x7517,0x766A,/* 0xD8-0xDF */
+	0x77D0,0x792D,0x7931,0x792F,0x7C54,0x7C53,0x7CF2,0x7E8A,/* 0xE0-0xE7 */
+	0x7E87,0x7E88,0x7E8B,0x7E86,0x7E8D,0x7F4D,0x7FBB,0x8030,/* 0xE8-0xEF */
+	0x81DD,0x8618,0x862A,0x8626,0x861F,0x8623,0x861C,0x8619,/* 0xF0-0xF7 */
+	0x8627,0x862E,0x8621,0x8620,0x8629,0x861E,0x8625,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F6[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8829,0x881D,0x881B,0x8820,0x8824,0x881C,0x882B,0x884A,/* 0x40-0x47 */
+	0x896D,0x8969,0x896E,0x896B,0x89FA,0x8B79,0x8B78,0x8B45,/* 0x48-0x4F */
+	0x8B7A,0x8B7B,0x8D10,0x8D14,0x8DAF,0x8E8E,0x8E8C,0x8F5E,/* 0x50-0x57 */
+	0x8F5B,0x8F5D,0x9146,0x9144,0x9145,0x91B9,0x943F,0x943B,/* 0x58-0x5F */
+	0x9436,0x9429,0x943D,0x943C,0x9430,0x9439,0x942A,0x9437,/* 0x60-0x67 */
+	0x942C,0x9440,0x9431,0x95E5,0x95E4,0x95E3,0x9735,0x973A,/* 0x68-0x6F */
+	0x97BF,0x97E1,0x9864,0x98C9,0x98C6,0x98C0,0x9958,0x9956,/* 0x70-0x77 */
+	0x9A39,0x9A3D,0x9A46,0x9A44,0x9A42,0x9A41,0x9A3A,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x9A3F,0x9ACD,0x9B15,0x9B17,0x9B18,0x9B16,0x9B3A,/* 0xA0-0xA7 */
+	0x9B52,0x9C2B,0x9C1D,0x9C1C,0x9C2C,0x9C23,0x9C28,0x9C29,/* 0xA8-0xAF */
+	0x9C24,0x9C21,0x9DB7,0x9DB6,0x9DBC,0x9DC1,0x9DC7,0x9DCA,/* 0xB0-0xB7 */
+	0x9DCF,0x9DBE,0x9DC5,0x9DC3,0x9DBB,0x9DB5,0x9DCE,0x9DB9,/* 0xB8-0xBF */
+	0x9DBA,0x9DAC,0x9DC8,0x9DB1,0x9DAD,0x9DCC,0x9DB3,0x9DCD,/* 0xC0-0xC7 */
+	0x9DB2,0x9E7A,0x9E9C,0x9EEB,0x9EEE,0x9EED,0x9F1B,0x9F18,/* 0xC8-0xCF */
+	0x9F1A,0x9F31,0x9F4E,0x9F65,0x9F64,0x9F92,0x4EB9,0x56C6,/* 0xD0-0xD7 */
+	0x56C5,0x56CB,0x5971,0x5B4B,0x5B4C,0x5DD5,0x5DD1,0x5EF2,/* 0xD8-0xDF */
+	0x6521,0x6520,0x6526,0x6522,0x6B0B,0x6B08,0x6B09,0x6C0D,/* 0xE0-0xE7 */
+	0x7055,0x7056,0x7057,0x7052,0x721E,0x721F,0x72A9,0x737F,/* 0xE8-0xEF */
+	0x74D8,0x74D5,0x74D9,0x74D7,0x766D,0x76AD,0x7935,0x79B4,/* 0xF0-0xF7 */
+	0x7A70,0x7A71,0x7C57,0x7C5C,0x7C59,0x7C5B,0x7C5A,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F7[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7CF4,0x7CF1,0x7E91,0x7F4F,0x7F87,0x81DE,0x826B,0x8634,/* 0x40-0x47 */
+	0x8635,0x8633,0x862C,0x8632,0x8636,0x882C,0x8828,0x8826,/* 0x48-0x4F */
+	0x882A,0x8825,0x8971,0x89BF,0x89BE,0x89FB,0x8B7E,0x8B84,/* 0x50-0x57 */
+	0x8B82,0x8B86,0x8B85,0x8B7F,0x8D15,0x8E95,0x8E94,0x8E9A,/* 0x58-0x5F */
+	0x8E92,0x8E90,0x8E96,0x8E97,0x8F60,0xF98D,0x9147,0x944C,/* 0x60-0x67 */
+	0x9450,0x944A,0x944B,0x944F,0x9447,0x9445,0x9448,0x9449,/* 0x68-0x6F */
+	0x9446,0x973F,0x97E3,0x986A,0x9869,0x98CB,0x9954,0x995B,/* 0x70-0x77 */
+	0x9A4E,0x9A53,0x9A54,0x9A4C,0x9A4F,0x9A48,0x9A4A,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x9A49,0x9A52,0x9A50,0x9AD0,0x9B19,0x9B2B,0x9B3B,/* 0xA0-0xA7 */
+	0x9B56,0x9B55,0x9C46,0x9C48,0x9C3F,0x9C44,0x9C39,0x9C33,/* 0xA8-0xAF */
+	0x9C41,0x9C3C,0x9C37,0x9C34,0x9C32,0x9C3D,0x9C36,0x9DDB,/* 0xB0-0xB7 */
+	0x9DD2,0x9DDE,0x9DDA,0x9DCB,0x9DD0,0x9DDC,0x9DD1,0x9DDF,/* 0xB8-0xBF */
+	0x9DE9,0x9DD9,0x9DD8,0x9DD6,0x9DF5,0x9DD5,0x9DDD,0x9EB6,/* 0xC0-0xC7 */
+	0x9EF0,0x9F35,0x9F33,0x9F32,0x9F42,0x9F6B,0x9F95,0x9FA2,/* 0xC8-0xCF */
+	0x513D,0x5299,0x58E8,0x58E7,0x5972,0x5B4D,0x5DD8,0x882F,/* 0xD0-0xD7 */
+	0x5F4F,0x6201,0x6203,0x6204,0x6529,0x6525,0x6596,0x66EB,/* 0xD8-0xDF */
+	0x6B11,0x6B12,0x6B0F,0x6BCA,0x705B,0x705A,0x7222,0x7382,/* 0xE0-0xE7 */
+	0x7381,0x7383,0x7670,0x77D4,0x7C67,0x7C66,0x7E95,0x826C,/* 0xE8-0xEF */
+	0x863A,0x8640,0x8639,0x863C,0x8631,0x863B,0x863E,0x8830,/* 0xF0-0xF7 */
+	0x8832,0x882E,0x8833,0x8976,0x8974,0x8973,0x89FE,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F8[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x8B8C,0x8B8E,0x8B8B,0x8B88,0x8C45,0x8D19,0x8E98,0x8F64,/* 0x40-0x47 */
+	0x8F63,0x91BC,0x9462,0x9455,0x945D,0x9457,0x945E,0x97C4,/* 0x48-0x4F */
+	0x97C5,0x9800,0x9A56,0x9A59,0x9B1E,0x9B1F,0x9B20,0x9C52,/* 0x50-0x57 */
+	0x9C58,0x9C50,0x9C4A,0x9C4D,0x9C4B,0x9C55,0x9C59,0x9C4C,/* 0x58-0x5F */
+	0x9C4E,0x9DFB,0x9DF7,0x9DEF,0x9DE3,0x9DEB,0x9DF8,0x9DE4,/* 0x60-0x67 */
+	0x9DF6,0x9DE1,0x9DEE,0x9DE6,0x9DF2,0x9DF0,0x9DE2,0x9DEC,/* 0x68-0x6F */
+	0x9DF4,0x9DF3,0x9DE8,0x9DED,0x9EC2,0x9ED0,0x9EF2,0x9EF3,/* 0x70-0x77 */
+	0x9F06,0x9F1C,0x9F38,0x9F37,0x9F36,0x9F43,0x9F4F,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x9F71,0x9F70,0x9F6E,0x9F6F,0x56D3,0x56CD,0x5B4E,/* 0xA0-0xA7 */
+	0x5C6D,0x652D,0x66ED,0x66EE,0x6B13,0x705F,0x7061,0x705D,/* 0xA8-0xAF */
+	0x7060,0x7223,0x74DB,0x74E5,0x77D5,0x7938,0x79B7,0x79B6,/* 0xB0-0xB7 */
+	0x7C6A,0x7E97,0x7F89,0x826D,0x8643,0x8838,0x8837,0x8835,/* 0xB8-0xBF */
+	0x884B,0x8B94,0x8B95,0x8E9E,0x8E9F,0x8EA0,0x8E9D,0x91BE,/* 0xC0-0xC7 */
+	0x91BD,0x91C2,0x946B,0x9468,0x9469,0x96E5,0x9746,0x9743,/* 0xC8-0xCF */
+	0x9747,0x97C7,0x97E5,0x9A5E,0x9AD5,0x9B59,0x9C63,0x9C67,/* 0xD0-0xD7 */
+	0x9C66,0x9C62,0x9C5E,0x9C60,0x9E02,0x9DFE,0x9E07,0x9E03,/* 0xD8-0xDF */
+	0x9E06,0x9E05,0x9E00,0x9E01,0x9E09,0x9DFF,0x9DFD,0x9E04,/* 0xE0-0xE7 */
+	0x9EA0,0x9F1E,0x9F46,0x9F74,0x9F75,0x9F76,0x56D4,0x652E,/* 0xE8-0xEF */
+	0x65B8,0x6B18,0x6B19,0x6B17,0x6B1A,0x7062,0x7226,0x72AA,/* 0xF0-0xF7 */
+	0x77D8,0x77D9,0x7939,0x7C69,0x7C6B,0x7CF6,0x7E9A,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t c2u_F9[256] = {
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x00-0x07 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x08-0x0F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x10-0x17 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x18-0x1F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x20-0x27 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x28-0x2F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x30-0x37 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x38-0x3F */
+	0x7E98,0x7E9B,0x7E99,0x81E0,0x81E1,0x8646,0x8647,0x8648,/* 0x40-0x47 */
+	0x8979,0x897A,0x897C,0x897B,0x89FF,0x8B98,0x8B99,0x8EA5,/* 0x48-0x4F */
+	0x8EA4,0x8EA3,0x946E,0x946D,0x946F,0x9471,0x9473,0x9749,/* 0x50-0x57 */
+	0x9872,0x995F,0x9C68,0x9C6E,0x9C6D,0x9E0B,0x9E0D,0x9E10,/* 0x58-0x5F */
+	0x9E0F,0x9E12,0x9E11,0x9EA1,0x9EF5,0x9F09,0x9F47,0x9F78,/* 0x60-0x67 */
+	0x9F7B,0x9F7A,0x9F79,0x571E,0x7066,0x7C6F,0x883C,0x8DB2,/* 0x68-0x6F */
+	0x8EA6,0x91C3,0x9474,0x9478,0x9476,0x9475,0x9A60,0x9C74,/* 0x70-0x77 */
+	0x9C73,0x9C71,0x9C75,0x9E14,0x9E13,0x9EF6,0x9F0A,0x0000,/* 0x78-0x7F */
+	
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x80-0x87 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x88-0x8F */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x90-0x97 */
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,/* 0x98-0x9F */
+	0x0000,0x9FA4,0x7068,0x7065,0x7CF7,0x866A,0x883E,0x883D,/* 0xA0-0xA7 */
+	0x883F,0x8B9E,0x8C9C,0x8EA9,0x8EC9,0x974B,0x9873,0x9874,/* 0xA8-0xAF */
+	0x98CC,0x9961,0x99AB,0x9A64,0x9A66,0x9A67,0x9B24,0x9E15,/* 0xB0-0xB7 */
+	0x9E17,0x9F48,0x6207,0x6B1E,0x7227,0x864C,0x8EA8,0x9482,/* 0xB8-0xBF */
+	0x9480,0x9481,0x9A69,0x9A68,0x9B2E,0x9E19,0x7229,0x864B,/* 0xC0-0xC7 */
+	0x8B9F,0x9483,0x9C79,0x9EB7,0x7675,0x9A6B,0x9C7A,0x9E1D,/* 0xC8-0xCF */
+	0x7069,0x706A,0x9EA4,0x9F7E,0x9F49,0x9F98,0x7881,0x92B9,/* 0xD0-0xD7 */
+	0x88CF,0x58BB,0x6052,0x7CA7,0x5AFA,0x2554,0x2566,0x2557,/* 0xD8-0xDF */
+	0x2560,0x256C,0x2563,0x255A,0x2569,0x255D,0x2552,0x2564,/* 0xE0-0xE7 */
+	0x2555,0x255E,0x256A,0x2561,0x2558,0x2567,0x255B,0x2553,/* 0xE8-0xEF */
+	0x2565,0x2556,0x255F,0x256B,0x2562,0x2559,0x2568,0x255C,/* 0xF0-0xF7 */
+	0x2551,0x2550,0x0000,0x0000,0x0000,0x0000,0x2593,0x0000,/* 0xF8-0xFF */
+};
+
+static wchar_t *page_charset2uni[256] = {
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   c2u_A1, c2u_A2, c2u_A3, c2u_A4, c2u_A5, c2u_A6, c2u_A7, 
+	c2u_A8, c2u_A9, c2u_AA, c2u_AB, c2u_AC, c2u_AD, c2u_AE, c2u_AF, 
+	c2u_B0, c2u_B1, c2u_B2, c2u_B3, c2u_B4, c2u_B5, c2u_B6, c2u_B7, 
+	c2u_B8, c2u_B9, c2u_BA, c2u_BB, c2u_BC, c2u_BD, c2u_BE, c2u_BF, 
+	c2u_C0, c2u_C1, c2u_C2, c2u_C3, c2u_C4, c2u_C5, c2u_C6, NULL,   
+	NULL,   c2u_C9, c2u_CA, c2u_CB, c2u_CC, c2u_CD, c2u_CE, c2u_CF, 
+	c2u_D0, c2u_D1, c2u_D2, c2u_D3, c2u_D4, c2u_D5, c2u_D6, c2u_D7, 
+	c2u_D8, c2u_D9, c2u_DA, c2u_DB, c2u_DC, c2u_DD, c2u_DE, c2u_DF, 
+	c2u_E0, c2u_E1, c2u_E2, c2u_E3, c2u_E4, c2u_E5, c2u_E6, c2u_E7, 
+	c2u_E8, c2u_E9, c2u_EA, c2u_EB, c2u_EC, c2u_ED, c2u_EE, c2u_EF, 
+	c2u_F0, c2u_F1, c2u_F2, c2u_F3, c2u_F4, c2u_F5, c2u_F6, c2u_F7, 
+	c2u_F8, c2u_F9, NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+};
+
+static unsigned char u2c_02[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA3, 0xBE, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xA3, 0xBC, 0xA3, 0xBD, 0xA3, 0xBF, /* 0xC8-0xCB */
+	0x00, 0x00, 0xA1, 0xC5, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xA3, 0xBB, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+};
+
+static unsigned char u2c_03[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0xA1, 0xC2, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0xA3, 0x44, 0xA3, 0x45, 0xA3, 0x46, /* 0x90-0x93 */
+	0xA3, 0x47, 0xA3, 0x48, 0xA3, 0x49, 0xA3, 0x4A, /* 0x94-0x97 */
+	0xA3, 0x4B, 0xA3, 0x4C, 0xA3, 0x4D, 0xA3, 0x4E, /* 0x98-0x9B */
+	0xA3, 0x4F, 0xA3, 0x50, 0xA3, 0x51, 0xA3, 0x52, /* 0x9C-0x9F */
+	0xA3, 0x53, 0xA3, 0x54, 0x00, 0x00, 0xA3, 0x55, /* 0xA0-0xA3 */
+	0xA3, 0x56, 0xA3, 0x57, 0xA3, 0x58, 0xA3, 0x59, /* 0xA4-0xA7 */
+	0xA3, 0x5A, 0xA3, 0x5B, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0xA3, 0x5C, 0xA3, 0x5D, 0xA3, 0x5E, /* 0xB0-0xB3 */
+	0xA3, 0x5F, 0xA3, 0x60, 0xA3, 0x61, 0xA3, 0x62, /* 0xB4-0xB7 */
+	0xA3, 0x63, 0xA3, 0x64, 0xA3, 0x65, 0xA3, 0x66, /* 0xB8-0xBB */
+	0xA3, 0x67, 0xA3, 0x68, 0xA3, 0x69, 0xA3, 0x6A, /* 0xBC-0xBF */
+	0xA3, 0x6B, 0xA3, 0x6C, 0x00, 0x00, 0xA3, 0x6D, /* 0xC0-0xC3 */
+	0xA3, 0x6E, 0xA3, 0x6F, 0xA3, 0x70, 0xA3, 0x71, /* 0xC4-0xC7 */
+	0xA3, 0x72, 0xA3, 0x73, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+};
+
+static unsigned char u2c_20[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA1, 0x56, /* 0x10-0x13 */
+	0xA1, 0x58, 0xA2, 0x77, 0xA1, 0xFC, 0x00, 0x00, /* 0x14-0x17 */
+	0xA1, 0xA5, 0xA1, 0xA6, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0xA1, 0xA7, 0xA1, 0xA8, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0xA1, 0x45, 0x00, 0x00, /* 0x20-0x23 */
+	0xA3, 0xBB, 0xA1, 0x4C, 0xA1, 0x4B, 0xA1, 0x45, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0xA1, 0xAC, 0xA1, 0xB2, /* 0x30-0x33 */
+	0x00, 0x00, 0xA1, 0xAB, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA1, 0xB0, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0xA1, 0xC3, 0x00, 0x00, /* 0x3C-0x3F */
+};
+
+static unsigned char u2c_21[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA2, 0x4A, /* 0x00-0x03 */
+	0x00, 0x00, 0xA1, 0xC1, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xA2, 0x4B, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0xA2, 0xB9, 0xA2, 0xBA, 0xA2, 0xBB, 0xA2, 0xBC, /* 0x60-0x63 */
+	0xA2, 0xBD, 0xA2, 0xBE, 0xA2, 0xBF, 0xA2, 0xC0, /* 0x64-0x67 */
+	0xA2, 0xC1, 0xA2, 0xC2, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0xA1, 0xF6, 0xA1, 0xF4, 0xA1, 0xF7, 0xA1, 0xF5, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0xA1, 0xF8, 0xA1, 0xF9, /* 0x94-0x97 */
+	0xA1, 0xFB, 0xA1, 0xFA, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+};
+
+static unsigned char u2c_22[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0xA2, 0x41, 0xA2, 0x42, 0x00, 0x00, /* 0x14-0x17 */
+	0xA2, 0x58, 0x00, 0x00, 0xA1, 0xD4, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0xA1, 0xDB, 0xA1, 0xE8, /* 0x1C-0x1F */
+	0xA1, 0xE7, 0x00, 0x00, 0x00, 0x00, 0xA1, 0xFD, /* 0x20-0x23 */
+	0x00, 0x00, 0xA1, 0xFC, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0xA1, 0xE4, 0xA1, 0xE5, 0xA1, 0xEC, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0xA1, 0xED, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0xA1, 0xEF, 0xA1, 0xEE, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0xA1, 0xDC, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0xA1, 0xDA, 0xA1, 0xDD, 0x00, 0x00, 0xA1, 0xDD, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0xA1, 0xD8, 0xA1, 0xD9, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0xA1, 0xF2, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0xA1, 0xF3, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xA1, 0xE6, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA1, 0xE9, /* 0xBC-0xBF */
+};
+
+static unsigned char u2c_23[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA1, 0x5B, /* 0x04-0x07 */
+};
+
+static unsigned char u2c_25[512] = {
+	0xA2, 0x77, 0x00, 0x00, 0xA2, 0x78, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0xA2, 0x7A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0xA2, 0x7B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0xA2, 0x7C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0xA2, 0x7D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0xA2, 0x75, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0xA2, 0x74, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0xA2, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0xA2, 0x72, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0xA2, 0x71, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0xF9, 0xF9, 0xF9, 0xF8, 0xF9, 0xE6, 0xF9, 0xEF, /* 0x50-0x53 */
+	0xF9, 0xDD, 0xF9, 0xE8, 0xF9, 0xF1, 0xF9, 0xDF, /* 0x54-0x57 */
+	0xF9, 0xEC, 0xF9, 0xF5, 0xF9, 0xE3, 0xF9, 0xEE, /* 0x58-0x5B */
+	0xF9, 0xF7, 0xF9, 0xE5, 0xF9, 0xE9, 0xF9, 0xF2, /* 0x5C-0x5F */
+	0xF9, 0xE0, 0xF9, 0xEB, 0xF9, 0xF4, 0xF9, 0xE2, /* 0x60-0x63 */
+	0xF9, 0xE7, 0xF9, 0xF0, 0xF9, 0xDE, 0xF9, 0xED, /* 0x64-0x67 */
+	0xF9, 0xF6, 0xF9, 0xE4, 0xF9, 0xEA, 0xF9, 0xF3, /* 0x68-0x6B */
+	0xF9, 0xE1, 0xA2, 0x7E, 0xA2, 0xA1, 0xA2, 0xA3, /* 0x6C-0x6F */
+	0xA2, 0xA2, 0xA2, 0xAC, 0xA2, 0xAD, 0xA2, 0xAE, /* 0x70-0x73 */
+	0xA1, 0x5A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xA2, 0x62, 0xA2, 0x63, 0xA2, 0x64, /* 0x80-0x83 */
+	0xA2, 0x65, 0xA2, 0x66, 0xA2, 0x67, 0xA2, 0x68, /* 0x84-0x87 */
+	0xA2, 0x69, 0xA2, 0x70, 0xA2, 0x6F, 0xA2, 0x6E, /* 0x88-0x8B */
+	0xA2, 0x6D, 0xA2, 0x6C, 0xA2, 0x6B, 0xA2, 0x6A, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF9, 0xFE, /* 0x90-0x93 */
+	0xA2, 0x76, 0xA2, 0x79, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0xA1, 0xBD, 0xA1, 0xBC, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0xA1, 0xB6, 0xA1, 0xB5, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0xA1, 0xBF, 0xA1, 0xBE, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0xA1, 0xBB, 0xA1, 0xBA, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA1, 0xB3, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0xA1, 0xB7, 0xA1, 0xB4, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0xA2, 0xA8, 0xA2, 0xA9, /* 0xE0-0xE3 */
+	0xA2, 0xAB, 0xA2, 0xAA, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+};
+
+static unsigned char u2c_26[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0xA1, 0xB9, 0xA1, 0xB8, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xA1, 0xF3, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0xA1, 0xF0, 0xA1, 0xF2, 0xA1, 0xF1, 0x00, 0x00, /* 0x40-0x43 */
+};
+
+static unsigned char u2c_30[512] = {
+	0xA1, 0x40, 0xA1, 0x42, 0xA1, 0x43, 0xA1, 0xB2, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0xA1, 0x71, 0xA1, 0x72, 0xA1, 0x6D, 0xA1, 0x6E, /* 0x08-0x0B */
+	0xA1, 0x75, 0xA1, 0x76, 0xA1, 0x79, 0xA1, 0x7A, /* 0x0C-0x0F */
+	0xA1, 0x69, 0xA1, 0x6A, 0xA2, 0x45, 0x00, 0x00, /* 0x10-0x13 */
+	0xA1, 0x65, 0xA1, 0x66, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0xA1, 0xE3, 0xA1, 0xA9, 0xA1, 0xAA, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0xA2, 0xC3, 0xA2, 0xC4, 0xA2, 0xC5, /* 0x20-0x23 */
+	0xA2, 0xC6, 0xA2, 0xC7, 0xA2, 0xC8, 0xA2, 0xC9, /* 0x24-0x27 */
+	0xA2, 0xCA, 0xA2, 0xCB, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xA1, 0xCA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+};
+
+static unsigned char u2c_31[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0xA3, 0x74, 0xA3, 0x75, 0xA3, 0x76, /* 0x04-0x07 */
+	0xA3, 0x77, 0xA3, 0x78, 0xA3, 0x79, 0xA3, 0x7A, /* 0x08-0x0B */
+	0xA3, 0x7B, 0xA3, 0x7C, 0xA3, 0x7D, 0xA3, 0x7E, /* 0x0C-0x0F */
+	0xA3, 0xA1, 0xA3, 0xA2, 0xA3, 0xA3, 0xA3, 0xA4, /* 0x10-0x13 */
+	0xA3, 0xA5, 0xA3, 0xA6, 0xA3, 0xA7, 0xA3, 0xA8, /* 0x14-0x17 */
+	0xA3, 0xA9, 0xA3, 0xAA, 0xA3, 0xAB, 0xA3, 0xAC, /* 0x18-0x1B */
+	0xA3, 0xAD, 0xA3, 0xAE, 0xA3, 0xAF, 0xA3, 0xB0, /* 0x1C-0x1F */
+	0xA3, 0xB1, 0xA3, 0xB2, 0xA3, 0xB3, 0xA3, 0xB4, /* 0x20-0x23 */
+	0xA3, 0xB5, 0xA3, 0xB6, 0xA3, 0xB7, 0xA3, 0xB8, /* 0x24-0x27 */
+	0xA3, 0xB9, 0xA3, 0xBA, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0xA4, 0x40, 0xA4, 0x47, /* 0x90-0x93 */
+	0xA4, 0x54, 0xA5, 0x7C, 0xA4, 0x57, 0xA4, 0xA4, /* 0x94-0x97 */
+	0xA4, 0x55, 0xA5, 0xD2, 0xA4, 0x41, 0xA4, 0xFE, /* 0x98-0x9B */
+	0xA4, 0x42, 0xA4, 0xD1, 0xA6, 0x61, 0xA4, 0x48, /* 0x9C-0x9F */
+};
+
+static unsigned char u2c_32[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0xA4, 0x40, 0xA4, 0x47, 0xA4, 0x54, 0xA5, 0x7C, /* 0x20-0x23 */
+	0xA4, 0xAD, 0xA4, 0xBB, 0xA4, 0x43, 0xA4, 0x4B, /* 0x24-0x27 */
+	0xA4, 0x45, 0xA4, 0x51, 0xA4, 0xEB, 0xA4, 0xF5, /* 0x28-0x2B */
+	0xA4, 0xF4, 0xA4, 0xEC, 0xAA, 0xF7, 0xA4, 0x67, /* 0x2C-0x2F */
+	0xA4, 0xE9, 0xAE, 0xE8, 0xA6, 0xB3, 0xAA, 0xC0, /* 0x30-0x33 */
+	0xA6, 0x57, 0xAF, 0x53, 0xB0, 0x5D, 0xAF, 0xAC, /* 0x34-0x37 */
+	0xB3, 0xD2, 0xA5, 0x4E, 0xA9, 0x49, 0xBE, 0xC7, /* 0x38-0x3B */
+	0xBA, 0xCA, 0xA5, 0xF8, 0xB8, 0xEA, 0xA8, 0xF3, /* 0x3C-0x3F */
+	0xB2, 0xBD, 0xA5, 0xF0, 0xA6, 0xDB, 0xA6, 0xDC, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xA4, 0x40, 0xA4, 0x47, 0xA4, 0x54, 0xA5, 0x7C, /* 0x80-0x83 */
+	0xA4, 0xAD, 0xA4, 0xBB, 0xA4, 0x43, 0xA4, 0x4B, /* 0x84-0x87 */
+	0xA4, 0x45, 0xA4, 0x51, 0xA4, 0xEB, 0xA4, 0xF5, /* 0x88-0x8B */
+	0xA4, 0xF4, 0xA4, 0xEC, 0xAA, 0xF7, 0xA4, 0x67, /* 0x8C-0x8F */
+	0xA4, 0xE9, 0xAE, 0xE8, 0xA6, 0xB3, 0xAA, 0xC0, /* 0x90-0x93 */
+	0xA6, 0x57, 0xAF, 0x53, 0xB0, 0x5D, 0xAF, 0xAC, /* 0x94-0x97 */
+	0xB3, 0xD2, 0xAF, 0xB5, 0xA8, 0x6B, 0xA4, 0x6B, /* 0x98-0x9B */
+	0xBE, 0x41, 0xC0, 0x75, 0xA6, 0x4C, 0xAA, 0x60, /* 0x9C-0x9F */
+	0xB6, 0xB5, 0xA5, 0xF0, 0xBC, 0x67, 0xA1, 0xC0, /* 0xA0-0xA3 */
+	0xA4, 0x57, 0xA4, 0xA4, 0xA4, 0x55, 0xA5, 0xAA, /* 0xA4-0xA7 */
+	0xA5, 0x6B, 0xC2, 0xE5, 0xA9, 0x76, 0xBE, 0xC7, /* 0xA8-0xAB */
+	0xBA, 0xCA, 0xA5, 0xF8, 0xB8, 0xEA, 0xA8, 0xF3, /* 0xAC-0xAF */
+	0xA9, 0x5D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+};
+
+static unsigned char u2c_33[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0xA2, 0x55, 0xA2, 0x56, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0xA2, 0x50, 0xA2, 0x51, 0xA2, 0x52, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0xA2, 0x54, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xA2, 0x57, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0xA2, 0x53, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0xA1, 0xEB, 0xA1, 0xEA, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xA2, 0x4F, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+};
+
+static unsigned char u2c_4E[512] = {
+	0xA4, 0x40, 0xA4, 0x42, 0x00, 0x00, 0xA4, 0x43, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC9, 0x45, /* 0x04-0x07 */
+	0xA4, 0x56, 0xA4, 0x54, 0xA4, 0x57, 0xA4, 0x55, /* 0x08-0x0B */
+	0xC9, 0x46, 0xA4, 0xA3, 0xC9, 0x4F, 0xC9, 0x4D, /* 0x0C-0x0F */
+	0xA4, 0xA2, 0xA4, 0xA1, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0xA5, 0x42, 0xA5, 0x41, 0xA5, 0x40, 0x00, 0x00, /* 0x14-0x17 */
+	0xA5, 0x43, 0xA4, 0xFE, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0xA5, 0xE0, 0xA5, 0xE1, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0xA8, 0xC3, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA4, 0x58, /* 0x28-0x2B */
+	0x00, 0x00, 0xA4, 0xA4, 0xC9, 0x50, 0x00, 0x00, /* 0x2C-0x2F */
+	0xA4, 0xA5, 0xC9, 0x63, 0xA6, 0xEA, 0xCB, 0xB1, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0xA4, 0x59, 0xA4, 0xA6, 0x00, 0x00, 0xA5, 0x44, /* 0x38-0x3B */
+	0xC9, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0xC9, 0x40, 0xA4, 0x44, /* 0x40-0x43 */
+	0x00, 0x00, 0xA4, 0x5B, 0x00, 0x00, 0xC9, 0x47, /* 0x44-0x47 */
+	0xA4, 0x5C, 0x00, 0x00, 0x00, 0x00, 0xA4, 0xA7, /* 0x48-0x4B */
+	0x00, 0x00, 0xA5, 0x45, 0xA5, 0x47, 0xA5, 0x46, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0xA5, 0xE2, 0xA5, 0xE3, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0xA8, 0xC4, 0x00, 0x00, /* 0x54-0x57 */
+	0xAD, 0xBC, 0xA4, 0x41, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0xC9, 0x41, 0xA4, 0x45, 0xA4, 0x5E, 0xA4, 0x5D, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0xA5, 0xE4, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA8, 0xC5, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0xB0, 0xAE, 0xD4, 0x4B, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0xB6, 0xC3, 0xDC, 0xB1, /* 0x80-0x83 */
+	0xDC, 0xB2, 0x00, 0x00, 0xA4, 0x46, 0x00, 0x00, /* 0x84-0x87 */
+	0xA4, 0xA9, 0x00, 0x00, 0x00, 0x00, 0xA8, 0xC6, /* 0x88-0x8B */
+	0xA4, 0x47, 0xC9, 0x48, 0xA4, 0x5F, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0xA4, 0xAA, 0xA4, 0xAC, 0xC9, 0x51, /* 0x90-0x93 */
+	0xA4, 0xAD, 0xA4, 0xAB, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0xA5, 0xE5, 0x00, 0x00, 0xA8, 0xC7, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0xA8, 0xC8, 0xAB, 0x45, /* 0x9C-0x9F */
+	0x00, 0x00, 0xA4, 0x60, 0xA4, 0xAE, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xA5, 0xE6, 0xA5, 0xE8, 0xA5, 0xE7, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xA6, 0xEB, 0x00, 0x00, 0x00, 0x00, 0xA8, 0xC9, /* 0xA8-0xAB */
+	0xA8, 0xCA, 0xAB, 0x46, 0xAB, 0x47, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xAD, 0xBD, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0xDC, 0xB3, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xF6, 0xD6, 0xA4, 0x48, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0xA4, 0xB0, 0xA4, 0xAF, 0xC9, 0x52, 0xA4, 0xB1, /* 0xC0-0xC3 */
+	0xA4, 0xB7, 0x00, 0x00, 0xA4, 0xB2, 0xA4, 0xB3, /* 0xC4-0xC7 */
+	0xC9, 0x54, 0xC9, 0x53, 0xA4, 0xB5, 0xA4, 0xB6, /* 0xC8-0xCB */
+	0x00, 0x00, 0xA4, 0xB4, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xA5, 0x4A, 0xA5, 0x4B, 0xA5, 0x4C, 0xA5, 0x4D, /* 0xD4-0xD7 */
+	0xA5, 0x49, 0xA5, 0x50, 0xC9, 0x6A, 0x00, 0x00, /* 0xD8-0xDB */
+	0xC9, 0x66, 0xC9, 0x69, 0xA5, 0x51, 0xA5, 0x61, /* 0xDC-0xDF */
+	0x00, 0x00, 0xC9, 0x68, 0x00, 0x00, 0xA5, 0x4E, /* 0xE0-0xE3 */
+	0xA5, 0x4F, 0xA5, 0x48, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xC9, 0x65, 0xC9, 0x67, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0xA5, 0xF5, 0xC9, 0xB0, 0xA5, 0xF2, 0xA5, 0xF6, /* 0xF0-0xF3 */
+	0xC9, 0xBA, 0xC9, 0xAE, 0xA5, 0xF3, 0xC9, 0xB2, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA5, 0xF4, /* 0xF8-0xFB */
+	0x00, 0x00, 0xA5, 0xF7, 0x00, 0x00, 0xA5, 0xE9, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_4F[512] = {
+	0xC9, 0xB1, 0xA5, 0xF8, 0xC9, 0xB5, 0x00, 0x00, /* 0x00-0x03 */
+	0xC9, 0xB9, 0xC9, 0xB6, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0xC9, 0xB3, 0xA5, 0xEA, 0xA5, 0xEC, 0xA5, 0xF9, /* 0x08-0x0B */
+	0x00, 0x00, 0xA5, 0xEE, 0xC9, 0xAB, 0xA5, 0xF1, /* 0x0C-0x0F */
+	0xA5, 0xEF, 0xA5, 0xF0, 0xC9, 0xBB, 0xC9, 0xB8, /* 0x10-0x13 */
+	0xC9, 0xAF, 0xA5, 0xED, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0xC9, 0xAC, 0xA5, 0xEB, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0xC9, 0xB4, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0xC9, 0xB7, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0xC9, 0xAD, 0xCA, 0x66, 0x00, 0x00, 0xA7, 0x42, /* 0x2C-0x2F */
+	0xA6, 0xF4, 0x00, 0x00, 0x00, 0x00, 0xCA, 0x67, /* 0x30-0x33 */
+	0xA6, 0xF1, 0x00, 0x00, 0xA7, 0x44, 0x00, 0x00, /* 0x34-0x37 */
+	0xA6, 0xF9, 0x00, 0x00, 0xA6, 0xF8, 0xCA, 0x5B, /* 0x38-0x3B */
+	0xA6, 0xFC, 0xA6, 0xF7, 0xCA, 0x60, 0xCA, 0x68, /* 0x3C-0x3F */
+	0x00, 0x00, 0xCA, 0x64, 0x00, 0x00, 0xA6, 0xFA, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xA6, 0xFD, 0xA6, 0xEE, /* 0x44-0x47 */
+	0xA7, 0x47, 0xCA, 0x5D, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0xCB, 0xBD, 0xA6, 0xEC, 0xA7, 0x43, 0xA6, 0xED, /* 0x4C-0x4F */
+	0xA6, 0xF5, 0xA6, 0xF6, 0xCA, 0x62, 0xCA, 0x5E, /* 0x50-0x53 */
+	0xA6, 0xFB, 0xA6, 0xF3, 0xCA, 0x5A, 0xA6, 0xEF, /* 0x54-0x57 */
+	0xCA, 0x65, 0xA7, 0x45, 0xA7, 0x48, 0xA6, 0xF2, /* 0x58-0x5B */
+	0xA7, 0x40, 0xA7, 0x46, 0xA6, 0xF0, 0xCA, 0x63, /* 0x5C-0x5F */
+	0xA7, 0x41, 0xCA, 0x69, 0xCA, 0x5C, 0xA6, 0xFE, /* 0x60-0x63 */
+	0xCA, 0x5F, 0x00, 0x00, 0x00, 0x00, 0xCA, 0x61, /* 0x64-0x67 */
+	0x00, 0x00, 0xA8, 0xD8, 0xCB, 0xBF, 0xCB, 0xCB, /* 0x68-0x6B */
+	0xA8, 0xD0, 0x00, 0x00, 0xCB, 0xCC, 0xA8, 0xCB, /* 0x6C-0x6F */
+	0xA8, 0xD5, 0x00, 0x00, 0x00, 0x00, 0xA8, 0xCE, /* 0x70-0x73 */
+	0xCB, 0xB9, 0xA8, 0xD6, 0xCB, 0xB8, 0xCB, 0xBC, /* 0x74-0x77 */
+	0xCB, 0xC3, 0xCB, 0xC1, 0xA8, 0xDE, 0xA8, 0xD9, /* 0x78-0x7B */
+	0xCB, 0xB3, 0xCB, 0xB5, 0xA8, 0xDB, 0xA8, 0xCF, /* 0x7C-0x7F */
+	
+	0xCB, 0xB6, 0xCB, 0xC2, 0xCB, 0xC9, 0xA8, 0xD4, /* 0x80-0x83 */
+	0xCB, 0xBB, 0xCB, 0xB4, 0xA8, 0xD3, 0xCB, 0xB7, /* 0x84-0x87 */
+	0xA8, 0xD7, 0xCB, 0xBA, 0x00, 0x00, 0xA8, 0xD2, /* 0x88-0x8B */
+	0x00, 0x00, 0xA8, 0xCD, 0x00, 0x00, 0xA8, 0xDC, /* 0x8C-0x8F */
+	0xCB, 0xC4, 0xA8, 0xDD, 0xCB, 0xC8, 0x00, 0x00, /* 0x90-0x93 */
+	0xCB, 0xC6, 0xCB, 0xCA, 0xA8, 0xDA, 0xCB, 0xBE, /* 0x94-0x97 */
+	0xCB, 0xB2, 0x00, 0x00, 0xCB, 0xC0, 0xA8, 0xD1, /* 0x98-0x9B */
+	0xCB, 0xC5, 0xA8, 0xCC, 0xCB, 0xC7, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0xAB, 0x56, 0xAB, 0x4A, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0xCD, 0xE0, 0xCD, 0xE8, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xAB, 0x49, 0xAB, 0x51, 0xAB, 0x5D, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xCD, 0xEE, 0xCD, 0xEC, 0xCD, 0xE7, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xAB, 0x4B, /* 0xBC-0xBF */
+	0xCD, 0xED, 0xCD, 0xE3, 0xAB, 0x59, 0xAB, 0x50, /* 0xC0-0xC3 */
+	0xAB, 0x58, 0xCD, 0xDE, 0x00, 0x00, 0xCD, 0xEA, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xCD, 0xE1, 0xAB, 0x54, 0xCD, 0xE2, /* 0xC8-0xCB */
+	0x00, 0x00, 0xCD, 0xDD, 0xAB, 0x5B, 0xAB, 0x4E, /* 0xCC-0xCF */
+	0xAB, 0x57, 0xAB, 0x4D, 0x00, 0x00, 0xCD, 0xDF, /* 0xD0-0xD3 */
+	0xCD, 0xE4, 0x00, 0x00, 0xCD, 0xEB, 0xAB, 0x55, /* 0xD4-0xD7 */
+	0xAB, 0x52, 0xCD, 0xE6, 0xAB, 0x5A, 0xCD, 0xE9, /* 0xD8-0xDB */
+	0xCD, 0xE5, 0xAB, 0x4F, 0xAB, 0x5C, 0xAB, 0x53, /* 0xDC-0xDF */
+	0xAB, 0x4C, 0xAB, 0x48, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0xCD, 0xEF, 0x00, 0x00, 0xAD, 0xD7, 0xAD, 0xC1, /* 0xEC-0xEF */
+	0x00, 0x00, 0xAD, 0xD1, 0x00, 0x00, 0xAD, 0xD6, /* 0xF0-0xF3 */
+	0xD0, 0xD0, 0xD0, 0xCF, 0xD0, 0xD4, 0xD0, 0xD5, /* 0xF4-0xF7 */
+	0xAD, 0xC4, 0x00, 0x00, 0xAD, 0xCD, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0xAD, 0xDA, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_50[512] = {
+	0xAD, 0xCE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0xD0, 0xC9, 0xAD, 0xC7, 0xD0, 0xCA, /* 0x04-0x07 */
+	0x00, 0x00, 0xAD, 0xDC, 0x00, 0x00, 0xAD, 0xD3, /* 0x08-0x0B */
+	0xAD, 0xBE, 0xAD, 0xBF, 0xD0, 0xDD, 0xB0, 0xBF, /* 0x0C-0x0F */
+	0x00, 0x00, 0xAD, 0xCC, 0xAD, 0xCB, 0xD0, 0xCB, /* 0x10-0x13 */
+	0xAD, 0xCF, 0xD4, 0x5B, 0xAD, 0xC6, 0xD0, 0xD6, /* 0x14-0x17 */
+	0xAD, 0xD5, 0xAD, 0xD4, 0xAD, 0xCA, 0xD0, 0xCE, /* 0x18-0x1B */
+	0xD0, 0xD7, 0x00, 0x00, 0xD0, 0xC8, 0xAD, 0xC9, /* 0x1C-0x1F */
+	0xD0, 0xD8, 0xAD, 0xD2, 0xD0, 0xCC, 0xAD, 0xC0, /* 0x20-0x23 */
+	0x00, 0x00, 0xAD, 0xC3, 0xAD, 0xC2, 0xD0, 0xD9, /* 0x24-0x27 */
+	0xAD, 0xD0, 0xAD, 0xC5, 0xAD, 0xD9, 0xAD, 0xDB, /* 0x28-0x2B */
+	0xD0, 0xD3, 0xAD, 0xD8, 0x00, 0x00, 0xD0, 0xDB, /* 0x2C-0x2F */
+	0xD0, 0xCD, 0xD0, 0xDC, 0x00, 0x00, 0xD0, 0xD1, /* 0x30-0x33 */
+	0x00, 0x00, 0xD0, 0xDA, 0x00, 0x00, 0xD0, 0xD2, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0xAD, 0xC8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0xD4, 0x63, 0xD4, 0x57, 0x00, 0x00, 0xB0, 0xB3, /* 0x40-0x43 */
+	0x00, 0x00, 0xD4, 0x5C, 0xD4, 0x62, 0xB0, 0xB2, /* 0x44-0x47 */
+	0xD4, 0x55, 0xB0, 0xB6, 0xD4, 0x59, 0xD4, 0x52, /* 0x48-0x4B */
+	0xB0, 0xB4, 0xD4, 0x56, 0xB0, 0xB9, 0xB0, 0xBE, /* 0x4C-0x4F */
+	0x00, 0x00, 0xD4, 0x67, 0x00, 0x00, 0xD4, 0x51, /* 0x50-0x53 */
+	0x00, 0x00, 0xB0, 0xBA, 0x00, 0x00, 0xD4, 0x66, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0xB0, 0xB5, 0xD4, 0x58, /* 0x58-0x5B */
+	0xB0, 0xB1, 0xD4, 0x53, 0xD4, 0x4F, 0xD4, 0x5D, /* 0x5C-0x5F */
+	0xD4, 0x50, 0xD4, 0x4E, 0xD4, 0x5A, 0xD4, 0x60, /* 0x60-0x63 */
+	0xD4, 0x61, 0xB0, 0xB7, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0xD8, 0x5B, 0xD4, 0x5E, 0xD4, 0x4D, 0xD4, 0x5F, /* 0x68-0x6B */
+	0x00, 0x00, 0xB0, 0xC1, 0xD4, 0x64, 0xB0, 0xC0, /* 0x6C-0x6F */
+	0xD4, 0x4C, 0x00, 0x00, 0xD4, 0x54, 0xD4, 0x65, /* 0x70-0x73 */
+	0xB0, 0xBC, 0xB0, 0xBB, 0xB0, 0xB8, 0xB0, 0xBD, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0xB0, 0xAF, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0xB0, 0xB0, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xB3, 0xC8, 0x00, 0x00, 0xD8, 0x5E, 0xD8, 0x57, /* 0x80-0x83 */
+	0x00, 0x00, 0xB3, 0xC5, 0x00, 0x00, 0xD8, 0x5F, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD8, 0x55, /* 0x88-0x8B */
+	0xD8, 0x58, 0xB3, 0xC4, 0xD8, 0x59, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0xB3, 0xC7, 0xD8, 0x5D, 0x00, 0x00, /* 0x90-0x93 */
+	0xD8, 0x53, 0xD8, 0x52, 0xB3, 0xC9, 0x00, 0x00, /* 0x94-0x97 */
+	0xB3, 0xCA, 0xB3, 0xC6, 0xB3, 0xCB, 0xD8, 0x51, /* 0x98-0x9B */
+	0xD8, 0x5C, 0xD8, 0x5A, 0xD8, 0x54, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0xB3, 0xC3, 0xD8, 0x56, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0xB6, 0xCA, 0xB6, 0xC4, 0xDC, 0xB7, 0xB6, 0xCD, /* 0xAC-0xAF */
+	0xDC, 0xBD, 0xDC, 0xC0, 0xB6, 0xC6, 0xB6, 0xC7, /* 0xB0-0xB3 */
+	0xDC, 0xBA, 0xB6, 0xC5, 0xDC, 0xC3, 0xB6, 0xCB, /* 0xB4-0xB7 */
+	0xDC, 0xC4, 0x00, 0x00, 0xDC, 0xBF, 0xB6, 0xCC, /* 0xB8-0xBB */
+	0x00, 0x00, 0xDC, 0xB4, 0xB6, 0xC9, 0xDC, 0xB5, /* 0xBC-0xBF */
+	0x00, 0x00, 0xDC, 0xBE, 0xDC, 0xBC, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xDC, 0xB8, 0xB6, 0xC8, 0xDC, 0xB6, 0xB6, 0xCE, /* 0xC4-0xC7 */
+	0xDC, 0xBB, 0xDC, 0xC2, 0xDC, 0xB9, 0xDC, 0xC1, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0xB9, 0xB6, 0xB9, 0xB3, /* 0xCC-0xCF */
+	0x00, 0x00, 0xB9, 0xB4, 0x00, 0x00, 0xE0, 0xF9, /* 0xD0-0xD3 */
+	0xE0, 0xF1, 0xB9, 0xB2, 0xB9, 0xAF, 0xE0, 0xF2, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0xB9, 0xB1, 0xE0, 0xF5, /* 0xD8-0xDB */
+	0x00, 0x00, 0xE0, 0xF7, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0xE0, 0xFE, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xFD, /* 0xE0-0xE3 */
+	0xE0, 0xF8, 0xB9, 0xAE, 0xE0, 0xF0, 0xB9, 0xAC, /* 0xE4-0xE7 */
+	0xE0, 0xF3, 0xB9, 0xB7, 0xE0, 0xF6, 0x00, 0x00, /* 0xE8-0xEB */
+	0xE0, 0xFA, 0xB9, 0xB0, 0xB9, 0xAD, 0xE0, 0xFC, /* 0xEC-0xEF */
+	0xE0, 0xFB, 0xB9, 0xB5, 0x00, 0x00, 0xE0, 0xF4, /* 0xF0-0xF3 */
+	0x00, 0x00, 0xBB, 0xF8, 0xE4, 0xEC, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xE4, 0xE9, 0xBB, 0xF9, 0x00, 0x00, 0xBB, 0xF7, /* 0xF8-0xFB */
+	0x00, 0x00, 0xE4, 0xF0, 0xE4, 0xED, 0xE4, 0xE6, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_51[512] = {
+	0xBB, 0xF6, 0x00, 0x00, 0xBB, 0xFA, 0xE4, 0xE7, /* 0x00-0x03 */
+	0xBB, 0xF5, 0xBB, 0xFD, 0xE4, 0xEA, 0xE4, 0xEB, /* 0x04-0x07 */
+	0xBB, 0xFB, 0xBB, 0xFC, 0xE4, 0xF1, 0xE4, 0xEE, /* 0x08-0x0B */
+	0xE4, 0xEF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0xBE, 0xAA, 0xE8, 0xF8, 0xBE, 0xA7, 0xE8, 0xF5, /* 0x10-0x13 */
+	0xBE, 0xA9, 0xBE, 0xAB, 0x00, 0x00, 0xE8, 0xF6, /* 0x14-0x17 */
+	0xBE, 0xA8, 0x00, 0x00, 0xE8, 0xF7, 0x00, 0x00, /* 0x18-0x1B */
+	0xE8, 0xF4, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x76, /* 0x1C-0x1F */
+	0xEC, 0xBD, 0xC0, 0x77, 0xEC, 0xBB, 0x00, 0x00, /* 0x20-0x23 */
+	0xEC, 0xBC, 0xEC, 0xBA, 0xEC, 0xB9, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0xEC, 0xBE, 0xC0, 0x75, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0xEF, 0xB8, 0xEF, 0xB9, 0x00, 0x00, /* 0x2C-0x2F */
+	0xE4, 0xE8, 0xEF, 0xB7, 0xC0, 0x78, 0xC3, 0x5F, /* 0x30-0x33 */
+	0xF1, 0xEB, 0xF1, 0xEC, 0x00, 0x00, 0xC4, 0xD7, /* 0x34-0x37 */
+	0xC4, 0xD8, 0xF5, 0xC1, 0xF5, 0xC0, 0xC5, 0x6C, /* 0x38-0x3B */
+	0xC5, 0x6B, 0xF7, 0xD0, 0x00, 0x00, 0xA4, 0x49, /* 0x3C-0x3F */
+	0xA4, 0x61, 0xA4, 0xB9, 0x00, 0x00, 0xA4, 0xB8, /* 0x40-0x43 */
+	0xA5, 0x53, 0xA5, 0x52, 0xA5, 0xFC, 0xA5, 0xFB, /* 0x44-0x47 */
+	0xA5, 0xFD, 0xA5, 0xFA, 0x00, 0x00, 0xA7, 0x4A, /* 0x48-0x4B */
+	0xA7, 0x49, 0xA7, 0x4B, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0xA8, 0xE0, 0x00, 0x00, /* 0x50-0x53 */
+	0xA8, 0xDF, 0xA8, 0xE1, 0x00, 0x00, 0xAB, 0x5E, /* 0x54-0x57 */
+	0x00, 0x00, 0xA2, 0x59, 0xD0, 0xDE, 0xA2, 0x5A, /* 0x58-0x5B */
+	0xB0, 0xC2, 0xA2, 0x5C, 0xA2, 0x5B, 0xD8, 0x60, /* 0x5C-0x5F */
+	0x00, 0x00, 0xA2, 0x5D, 0xB9, 0xB8, 0xA2, 0x5E, /* 0x60-0x63 */
+	0x00, 0x00, 0xA4, 0x4A, 0x00, 0x00, 0xA4, 0xBA, /* 0x64-0x67 */
+	0xA5, 0xFE, 0xA8, 0xE2, 0x00, 0x00, 0xA4, 0x4B, /* 0x68-0x6B */
+	0xA4, 0xBD, 0xA4, 0xBB, 0xA4, 0xBC, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0xA6, 0x40, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0xA7, 0x4C, 0xA8, 0xE4, 0xA8, 0xE3, /* 0x74-0x77 */
+	0xA8, 0xE5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0xAD, 0xDD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xBE, 0xAC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC9, 0x4E, /* 0x84-0x87 */
+	0x00, 0x00, 0xA5, 0x54, 0xA5, 0x55, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0xA6, 0x41, 0x00, 0x00, 0xCA, 0x6A, /* 0x8C-0x8F */
+	0x00, 0x00, 0xAB, 0x60, 0xAB, 0x5F, 0xD0, 0xE0, /* 0x90-0x93 */
+	0xD0, 0xDF, 0xB0, 0xC3, 0x00, 0x00, 0xA4, 0xBE, /* 0x94-0x97 */
+	0xC9, 0x55, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0xCB, 0xCD, 0x00, 0x00, /* 0x9C-0x9F */
+	0xAB, 0x61, 0x00, 0x00, 0xAD, 0xE0, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xAD, 0xDE, 0xAD, 0xDF, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0xBE, 0xAD, 0x00, 0x00, /* 0xA8-0xAB */
+	0xA5, 0x56, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0xA6, 0x42, 0xC9, 0xBC, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0xA7, 0x4D, 0xA7, 0x4E, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xCA, 0x6B, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0xCB, 0xCE, 0xA8, 0xE6, 0xCB, 0xCF, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xD0, 0xE2, 0xD0, 0xE3, 0xAD, 0xE3, 0x00, 0x00, /* 0xC4-0xC7 */
+	0xD0, 0xE4, 0x00, 0x00, 0xD0, 0xE1, 0xAD, 0xE4, /* 0xC8-0xCB */
+	0xAD, 0xE2, 0xAD, 0xE1, 0xD0, 0xE5, 0x00, 0x00, /* 0xCC-0xCF */
+	0xD4, 0x68, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xD8, 0x61, 0x00, 0x00, 0x00, 0x00, 0xDC, 0xC5, /* 0xD4-0xD7 */
+	0xE1, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0xBB, 0xFE, 0xBE, 0xAE, 0xE8, 0xF9, 0x00, 0x00, /* 0xDC-0xDF */
+	0xA4, 0x4C, 0xA4, 0x5A, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0xB0, 0xC4, 0xB3, 0xCD, 0x00, 0x00, 0xB9, 0xB9, /* 0xF0-0xF3 */
+	0x00, 0x00, 0xC9, 0x42, 0xA4, 0xBF, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xA5, 0x59, 0xA5, 0x57, 0xA5, 0x58, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0xA8, 0xE7, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_52[512] = {
+	0xA4, 0x4D, 0xA4, 0x4E, 0x00, 0x00, 0xA4, 0x62, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0xA4, 0xC0, 0xA4, 0xC1, /* 0x04-0x07 */
+	0xA4, 0xC2, 0xC9, 0xBE, 0xA5, 0x5A, 0x00, 0x00, /* 0x08-0x0B */
+	0xC9, 0x6B, 0x00, 0x00, 0xA6, 0x46, 0x00, 0x00, /* 0x0C-0x0F */
+	0xC9, 0xBF, 0xA6, 0x44, 0xA6, 0x45, 0xC9, 0xBD, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xA6, 0x47, 0xA6, 0x43, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0xCA, 0x6C, 0xAA, 0xEC, 0xCA, 0x6D, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0xCA, 0x6E, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0xA7, 0x50, 0xA7, 0x4F, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0xA7, 0x53, 0xA7, 0x51, 0xA7, 0x52, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0xA8, 0xED, 0x00, 0x00, /* 0x2C-0x2F */
+	0xA8, 0xEC, 0xCB, 0xD4, 0xCB, 0xD1, 0xCB, 0xD2, /* 0x30-0x33 */
+	0x00, 0x00, 0xCB, 0xD0, 0xA8, 0xEE, 0xA8, 0xEA, /* 0x34-0x37 */
+	0xA8, 0xE9, 0x00, 0x00, 0xA8, 0xEB, 0xA8, 0xE8, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0xA8, 0xEF, 0x00, 0x00, 0xAB, 0x63, /* 0x40-0x43 */
+	0xCD, 0xF0, 0x00, 0x00, 0xCB, 0xD3, 0xAB, 0x68, /* 0x44-0x47 */
+	0x00, 0x00, 0xCD, 0xF1, 0xAB, 0x64, 0xAB, 0x67, /* 0x48-0x4B */
+	0xAB, 0x66, 0xAB, 0x65, 0xAB, 0x62, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0xD0, 0xE8, 0x00, 0x00, /* 0x50-0x53 */
+	0xAD, 0xE7, 0xD0, 0xEB, 0xAD, 0xE5, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0xD0, 0xE7, 0xAD, 0xE8, /* 0x58-0x5B */
+	0xAD, 0xE6, 0xAD, 0xE9, 0xD0, 0xE9, 0xD0, 0xEA, /* 0x5C-0x5F */
+	0x00, 0x00, 0xD0, 0xE6, 0xD0, 0xEC, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0xB3, 0xD1, 0xB0, 0xC5, 0xD4, 0x69, /* 0x68-0x6B */
+	0xD4, 0x6B, 0xD4, 0x6A, 0xD4, 0x6C, 0xB0, 0xC6, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0xB3, 0xCE, 0x00, 0x00, /* 0x70-0x73 */
+	0xB3, 0xCF, 0xB3, 0xD0, 0x00, 0x00, 0xB6, 0xD0, /* 0x74-0x77 */
+	0xDC, 0xC7, 0x00, 0x00, 0xDC, 0xC6, 0xDC, 0xC8, /* 0x78-0x7B */
+	0xDC, 0xC9, 0xB6, 0xD1, 0x00, 0x00, 0xB6, 0xCF, /* 0x7C-0x7F */
+	
+	0xE1, 0x41, 0xE1, 0x42, 0xB9, 0xBB, 0xB9, 0xBA, /* 0x80-0x83 */
+	0xE3, 0x5A, 0x00, 0x00, 0x00, 0x00, 0xBC, 0x40, /* 0x84-0x87 */
+	0xBC, 0x41, 0xBC, 0x42, 0xBC, 0x44, 0xE4, 0xF2, /* 0x88-0x8B */
+	0xE4, 0xF3, 0xBC, 0x43, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0xBE, 0xAF, 0x00, 0x00, 0xBE, 0xB0, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0xF1, 0xED, 0xF5, 0xC3, /* 0x94-0x97 */
+	0xF5, 0xC2, 0xF7, 0xD1, 0x00, 0x00, 0xA4, 0x4F, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA5, 0x5C, /* 0x9C-0x9F */
+	0xA5, 0x5B, 0x00, 0x00, 0x00, 0x00, 0xA6, 0x48, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0xC9, 0xC0, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0xA7, 0x55, 0xA7, 0x56, 0xA7, 0x54, /* 0xA8-0xAB */
+	0xA7, 0x57, 0xCA, 0x6F, 0xCA, 0x70, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA8, 0xF1, /* 0xB8-0xBB */
+	0xCB, 0xD5, 0x00, 0x00, 0xA8, 0xF0, 0x00, 0x00, /* 0xBC-0xBF */
+	0xCD, 0xF2, 0xAB, 0x6C, 0xCD, 0xF3, 0xAB, 0x6B, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xAB, 0x69, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xAB, 0x6A, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0xD0, 0xED, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0xB0, 0xC7, 0xD4, 0x6E, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xB0, 0xCA, 0xD4, 0x6D, 0xB1, 0xE5, /* 0xD4-0xD7 */
+	0xB0, 0xC9, 0xB0, 0xC8, 0x00, 0x00, 0xB3, 0xD4, /* 0xD8-0xDB */
+	0x00, 0x00, 0xB3, 0xD3, 0xB3, 0xD2, 0xB6, 0xD2, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0xB6, 0xD5, 0xB6, 0xD6, /* 0xE0-0xE3 */
+	0xB6, 0xD4, 0x00, 0x00, 0xB6, 0xD3, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0xE1, 0x43, 0x00, 0x00, 0xE1, 0x44, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xF5, /* 0xEC-0xEF */
+	0xBC, 0x45, 0xE4, 0xF4, 0x00, 0x00, 0xBE, 0xB1, /* 0xF0-0xF3 */
+	0xEC, 0xBF, 0xC0, 0x79, 0x00, 0x00, 0xF1, 0xEE, /* 0xF4-0xF7 */
+	0xC4, 0x55, 0x00, 0x00, 0xA4, 0x63, 0xA4, 0xC3, /* 0xF8-0xFB */
+	0xC9, 0x56, 0x00, 0x00, 0xA4, 0xC4, 0xA4, 0xC5, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_53[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0xA5, 0x5D, 0xA5, 0x5E, 0x00, 0x00, /* 0x04-0x07 */
+	0xA6, 0x49, 0xCA, 0x71, 0xCB, 0xD6, 0xCB, 0xD7, /* 0x08-0x0B */
+	0x00, 0x00, 0xAB, 0x6D, 0xD0, 0xEE, 0xB0, 0xCC, /* 0x0C-0x0F */
+	0xB0, 0xCB, 0xD8, 0x63, 0xD8, 0x62, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0xA4, 0x50, 0xA4, 0xC6, 0xA5, 0x5F, /* 0x14-0x17 */
+	0x00, 0x00, 0xB0, 0xCD, 0xC9, 0x43, 0x00, 0x00, /* 0x18-0x1B */
+	0xC9, 0x6C, 0xA5, 0x60, 0x00, 0x00, 0xC9, 0xC2, /* 0x1C-0x1F */
+	0xA6, 0x4B, 0xA6, 0x4A, 0xC9, 0xC1, 0xA7, 0x58, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xAD, 0xEA, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0xD4, 0x6F, 0x00, 0x00, 0xB6, 0xD7, /* 0x2C-0x2F */
+	0xE1, 0x45, 0xB9, 0xBC, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0xE8, 0xFA, 0x00, 0x00, 0x00, 0x00, 0xF3, 0xFD, /* 0x34-0x37 */
+	0x00, 0x00, 0xA4, 0xC7, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0xCB, 0xD8, 0xCD, 0xF4, 0xB0, 0xD0, 0xB0, 0xCE, /* 0x3C-0x3F */
+	0xB0, 0xCF, 0xA4, 0x51, 0x00, 0x00, 0xA4, 0x64, /* 0x40-0x43 */
+	0xA2, 0xCD, 0xA4, 0xCA, 0x00, 0x00, 0xA4, 0xC9, /* 0x44-0x47 */
+	0xA4, 0xC8, 0xA5, 0x63, 0xA5, 0x62, 0x00, 0x00, /* 0x48-0x4B */
+	0xC9, 0x6D, 0xC9, 0xC3, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0xA8, 0xF5, 0xA8, 0xF2, 0xA8, 0xF4, /* 0x50-0x53 */
+	0xA8, 0xF3, 0x00, 0x00, 0x00, 0x00, 0xAB, 0x6E, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0xB3, 0xD5, 0x00, 0x00, /* 0x58-0x5B */
+	0xA4, 0x52, 0x00, 0x00, 0xA4, 0xCB, 0x00, 0x00, /* 0x5C-0x5F */
+	0xA5, 0x65, 0xA5, 0x64, 0x00, 0x00, 0xCA, 0x72, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0xA8, 0xF6, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0xC9, 0x57, 0x00, 0x00, 0xA5, 0x67, 0xA5, 0x66, /* 0x6C-0x6F */
+	0xA6, 0x4C, 0xA6, 0x4D, 0xCA, 0x73, 0xA7, 0x59, /* 0x70-0x73 */
+	0x00, 0x00, 0xA7, 0x5A, 0x00, 0x00, 0xA8, 0xF7, /* 0x74-0x77 */
+	0xA8, 0xF8, 0xA8, 0xF9, 0x00, 0x00, 0xAB, 0x6F, /* 0x78-0x7B */
+	0xCD, 0xF5, 0x00, 0x00, 0x00, 0x00, 0xAD, 0xEB, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0xC9, 0x44, 0x00, 0x00, /* 0x80-0x83 */
+	0xA4, 0xCC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0xC9, 0xC4, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0xCA, 0x74, 0xCA, 0x75, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0xCB, 0xD9, 0x00, 0x00, /* 0x90-0x93 */
+	0xCB, 0xDA, 0x00, 0x00, 0xCD, 0xF7, 0xCD, 0xF6, /* 0x94-0x97 */
+	0xCD, 0xF9, 0xCD, 0xF8, 0xAB, 0x70, 0x00, 0x00, /* 0x98-0x9B */
+	0xD4, 0x70, 0xAD, 0xED, 0xD0, 0xEF, 0xAD, 0xEC, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xD8, 0x64, 0xB3, 0xD6, 0x00, 0x00, 0xD8, 0x65, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0xE1, 0x46, 0xB9, 0xBD, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0xBC, 0x46, 0x00, 0x00, /* 0xB0-0xB3 */
+	0xF1, 0xEF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xC9, 0x58, 0x00, 0x00, 0xA5, 0x68, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB0, 0xD1, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0xA4, 0x53, 0xA4, 0x65, 0xA4, 0xCE, 0xA4, 0xCD, /* 0xC8-0xCB */
+	0x00, 0x00, 0xA4, 0xCF, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xA8, 0xFB, 0x00, 0x00, 0xA8, 0xFA, 0xA8, 0xFC, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xAB, 0x71, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xAD, 0xEE, /* 0xDC-0xDF */
+	0x00, 0x00, 0xE8, 0xFB, 0xC2, 0x4F, 0xA4, 0x66, /* 0xE0-0xE3 */
+	0xA5, 0x6A, 0xA5, 0x79, 0xA5, 0x74, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xA5, 0x6F, 0xA5, 0x6E, 0xA5, 0x75, 0xA5, 0x73, /* 0xE8-0xEB */
+	0xA5, 0x6C, 0xA5, 0x7A, 0xA5, 0x6D, 0xA5, 0x69, /* 0xEC-0xEF */
+	0xA5, 0x78, 0xA5, 0x77, 0xA5, 0x76, 0xA5, 0x6B, /* 0xF0-0xF3 */
+	0x00, 0x00, 0xA5, 0x72, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xA5, 0x71, 0x00, 0x00, 0x00, 0x00, 0xA5, 0x7B, /* 0xF8-0xFB */
+	0xA5, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_54[512] = {
+	0x00, 0x00, 0xA6, 0x53, 0x00, 0x00, 0xA6, 0x59, /* 0x00-0x03 */
+	0xA6, 0x55, 0x00, 0x00, 0xA6, 0x5B, 0xC9, 0xC5, /* 0x04-0x07 */
+	0xA6, 0x58, 0xA6, 0x4E, 0xA6, 0x51, 0xA6, 0x54, /* 0x08-0x0B */
+	0xA6, 0x50, 0xA6, 0x57, 0xA6, 0x5A, 0xA6, 0x4F, /* 0x0C-0x0F */
+	0xA6, 0x52, 0xA6, 0x56, 0xA6, 0x5C, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0xCA, 0x7E, 0xCA, 0x7B, 0x00, 0x00, 0xA7, 0x67, /* 0x18-0x1B */
+	0xCA, 0x7C, 0xA7, 0x5B, 0xA7, 0x5D, 0xA7, 0x75, /* 0x1C-0x1F */
+	0xA7, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0xCA, 0xA5, 0xCA, 0x7D, 0xA7, 0x5F, 0xA7, 0x61, /* 0x24-0x27 */
+	0xCA, 0xA4, 0xA7, 0x68, 0xCA, 0x78, 0xA7, 0x74, /* 0x28-0x2B */
+	0xA7, 0x76, 0xA7, 0x5C, 0xA7, 0x6D, 0x00, 0x00, /* 0x2C-0x2F */
+	0xCA, 0x76, 0xA7, 0x73, 0x00, 0x00, 0xA7, 0x64, /* 0x30-0x33 */
+	0x00, 0x00, 0xA7, 0x6E, 0xA7, 0x6F, 0xCA, 0x77, /* 0x34-0x37 */
+	0xA7, 0x6C, 0xA7, 0x6A, 0x00, 0x00, 0xA7, 0x6B, /* 0x38-0x3B */
+	0xA7, 0x71, 0xCA, 0xA1, 0xA7, 0x5E, 0x00, 0x00, /* 0x3C-0x3F */
+	0xA7, 0x72, 0xCA, 0xA3, 0xA7, 0x66, 0xA7, 0x63, /* 0x40-0x43 */
+	0x00, 0x00, 0xCA, 0x7A, 0xA7, 0x62, 0xCA, 0xA6, /* 0x44-0x47 */
+	0xA7, 0x65, 0x00, 0x00, 0xA7, 0x69, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0xA7, 0x60, 0xCA, 0xA2, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0xCA, 0x79, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0xCB, 0xEB, 0xCB, 0xEA, 0xA9, 0x4F, 0xCB, 0xED, /* 0x60-0x63 */
+	0xCB, 0xEF, 0xCB, 0xE4, 0xCB, 0xE7, 0xCB, 0xEE, /* 0x64-0x67 */
+	0xA9, 0x50, 0x00, 0x00, 0x00, 0x00, 0xCB, 0xE1, /* 0x68-0x6B */
+	0xCB, 0xE5, 0x00, 0x00, 0x00, 0x00, 0xCB, 0xE9, /* 0x6C-0x6F */
+	0xCE, 0x49, 0xA9, 0x4B, 0xCE, 0x4D, 0xA8, 0xFD, /* 0x70-0x73 */
+	0xCB, 0xE6, 0xA8, 0xFE, 0xA9, 0x4C, 0xA9, 0x45, /* 0x74-0x77 */
+	0xA9, 0x41, 0x00, 0x00, 0xCB, 0xE2, 0xA9, 0x44, /* 0x78-0x7B */
+	0xA9, 0x49, 0xA9, 0x52, 0xCB, 0xE3, 0xCB, 0xDC, /* 0x7C-0x7F */
+	
+	0xA9, 0x43, 0xCB, 0xDD, 0xCB, 0xDF, 0x00, 0x00, /* 0x80-0x83 */
+	0xA9, 0x46, 0x00, 0x00, 0xA9, 0x48, 0xCB, 0xDB, /* 0x84-0x87 */
+	0xCB, 0xE0, 0x00, 0x00, 0x00, 0x00, 0xA9, 0x51, /* 0x88-0x8B */
+	0xA9, 0x4D, 0xCB, 0xE8, 0xA9, 0x53, 0x00, 0x00, /* 0x8C-0x8F */
+	0xA9, 0x4A, 0xCB, 0xDE, 0xA9, 0x47, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0xA9, 0x42, 0xA9, 0x40, 0x00, 0x00, /* 0x94-0x97 */
+	0xCB, 0xEC, 0x00, 0x00, 0xA9, 0x4E, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0xCE, 0x48, 0xCD, 0xFB, 0xCE, 0x4B, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xCD, 0xFD, 0xAB, 0x78, 0xAB, 0xA8, /* 0xA4-0xA7 */
+	0xAB, 0x74, 0xAB, 0xA7, 0xAB, 0x7D, 0xAB, 0xA4, /* 0xA8-0xAB */
+	0xAB, 0x72, 0xCD, 0xFC, 0xCE, 0x43, 0xAB, 0xA3, /* 0xAC-0xAF */
+	0xCE, 0x4F, 0xAB, 0xA5, 0x00, 0x00, 0xAB, 0x79, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0xCE, 0x45, 0xCE, 0x42, /* 0xB4-0xB7 */
+	0xAB, 0x77, 0x00, 0x00, 0xCD, 0xFA, 0xAB, 0xA6, /* 0xB8-0xBB */
+	0xCE, 0x4A, 0xAB, 0x7C, 0xCE, 0x4C, 0xAB, 0xA9, /* 0xBC-0xBF */
+	0xAB, 0x73, 0xAB, 0x7E, 0xAB, 0x7B, 0xCE, 0x40, /* 0xC0-0xC3 */
+	0xAB, 0xA1, 0xCE, 0x46, 0xCE, 0x47, 0xAB, 0x7A, /* 0xC4-0xC7 */
+	0xAB, 0xA2, 0xAB, 0x76, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0xAB, 0x75, 0xCD, 0xFE, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0xCE, 0x44, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0xCE, 0x4E, 0x00, 0x00, /* 0xDC-0xDF */
+	0xD1, 0x44, 0xAD, 0xFB, 0xD0, 0xF1, 0x00, 0x00, /* 0xE0-0xE3 */
+	0xD0, 0xF6, 0xAD, 0xF4, 0xAE, 0x40, 0xD0, 0xF4, /* 0xE4-0xE7 */
+	0xAD, 0xEF, 0xAD, 0xF9, 0xAD, 0xFE, 0xD0, 0xFB, /* 0xE8-0xEB */
+	0x00, 0x00, 0xAD, 0xFA, 0xAD, 0xFD, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0xD0, 0xFE, 0xAD, 0xF5, 0xD0, 0xF5, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD1, 0x42, /* 0xF4-0xF7 */
+	0xD1, 0x43, 0x00, 0x00, 0xAD, 0xF7, 0xD1, 0x41, /* 0xF8-0xFB */
+	0xAD, 0xF3, 0xAE, 0x43, 0x00, 0x00, 0xD0, 0xF8, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_55[512] = {
+	0x00, 0x00, 0xAD, 0xF1, 0x00, 0x00, 0xD1, 0x46, /* 0x00-0x03 */
+	0xD0, 0xF9, 0xD0, 0xFD, 0xAD, 0xF6, 0xAE, 0x42, /* 0x04-0x07 */
+	0xD0, 0xFA, 0xAD, 0xFC, 0xD1, 0x40, 0xD1, 0x47, /* 0x08-0x0B */
+	0xD4, 0xA1, 0x00, 0x00, 0xD1, 0x45, 0xAE, 0x44, /* 0x0C-0x0F */
+	0xAD, 0xF0, 0xD0, 0xFC, 0xD0, 0xF3, 0x00, 0x00, /* 0x10-0x13 */
+	0xAD, 0xF8, 0x00, 0x00, 0x00, 0x00, 0xD0, 0xF2, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0xD0, 0xF7, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0xD0, 0xF0, 0xAE, 0x41, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xD4, 0x77, 0x00, 0x00, /* 0x28-0x2B */
+	0xB0, 0xE4, 0xD4, 0xA7, 0xB0, 0xE2, 0xB0, 0xDF, /* 0x2C-0x2F */
+	0xD4, 0x7C, 0xB0, 0xDB, 0xD4, 0xA2, 0xB0, 0xE6, /* 0x30-0x33 */
+	0xD4, 0x76, 0xD4, 0x7B, 0xD4, 0x7A, 0xAD, 0xF2, /* 0x34-0x37 */
+	0xB0, 0xE1, 0xD4, 0xA5, 0x00, 0x00, 0xD4, 0xA8, /* 0x38-0x3B */
+	0xD4, 0x73, 0x00, 0x00, 0xB3, 0xE8, 0x00, 0x00, /* 0x3C-0x3F */
+	0xD4, 0xA9, 0xB0, 0xE7, 0x00, 0x00, 0xB0, 0xD9, /* 0x40-0x43 */
+	0xB0, 0xD6, 0xD4, 0x7E, 0xB0, 0xD3, 0x00, 0x00, /* 0x44-0x47 */
+	0xD4, 0xA6, 0x00, 0x00, 0xB0, 0xDA, 0xD4, 0xAA, /* 0x48-0x4B */
+	0x00, 0x00, 0xD4, 0x74, 0xD4, 0xA4, 0xB0, 0xDD, /* 0x4C-0x4F */
+	0xD4, 0x75, 0xD4, 0x78, 0xD4, 0x7D, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0xB0, 0xDE, 0xB0, 0xDC, 0xB0, 0xE8, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0xB0, 0xE3, 0x00, 0x00, 0xB0, 0xD7, 0xB1, 0xD2, /* 0x5C-0x5F */
+	0x00, 0x00, 0xB0, 0xD8, 0xD4, 0x79, 0xB0, 0xE5, /* 0x60-0x63 */
+	0xB0, 0xE0, 0xD4, 0xA3, 0xB0, 0xD5, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0xB0, 0xD4, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0xD4, 0x71, 0xD4, 0x72, 0xD8, 0x6A, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB3, 0xD7, /* 0x78-0x7B */
+	0xB3, 0xDA, 0xD8, 0x75, 0xB3, 0xEE, 0xD8, 0x78, /* 0x7C-0x7F */
+	
+	0xB3, 0xD8, 0xD8, 0x71, 0xB3, 0xDE, 0xB3, 0xE4, /* 0x80-0x83 */
+	0xB5, 0xBD, 0x00, 0x00, 0x00, 0x00, 0xB3, 0xE2, /* 0x84-0x87 */
+	0xD8, 0x6E, 0xB3, 0xEF, 0xB3, 0xDB, 0xB3, 0xE3, /* 0x88-0x8B */
+	0xD8, 0x76, 0xDC, 0xD7, 0xD8, 0x7B, 0xD8, 0x6F, /* 0x8C-0x8F */
+	0x00, 0x00, 0xD8, 0x66, 0xD8, 0x73, 0xD8, 0x6D, /* 0x90-0x93 */
+	0xB3, 0xE1, 0xD8, 0x79, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0xB3, 0xDD, 0xB3, 0xF1, 0xB3, 0xEA, 0x00, 0x00, /* 0x98-0x9B */
+	0xB3, 0xDF, 0xB3, 0xDC, 0x00, 0x00, 0xB3, 0xE7, /* 0x9C-0x9F */
+	0x00, 0x00, 0xD8, 0x7A, 0xD8, 0x6C, 0xD8, 0x72, /* 0xA0-0xA3 */
+	0xD8, 0x74, 0xD8, 0x68, 0xD8, 0x77, 0xB3, 0xD9, /* 0xA4-0xA7 */
+	0xD8, 0x67, 0x00, 0x00, 0xB3, 0xE0, 0xB3, 0xF0, /* 0xA8-0xAB */
+	0xB3, 0xEC, 0xD8, 0x69, 0xB3, 0xE6, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0xB3, 0xED, 0xB3, 0xE9, 0xB3, 0xE5, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xD8, 0x70, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB3, 0xEB, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDC, 0xD5, /* 0xBC-0xBF */
+	0xDC, 0xD1, 0x00, 0x00, 0xDC, 0xE0, 0xDC, 0xCA, /* 0xC0-0xC3 */
+	0xDC, 0xD3, 0xB6, 0xE5, 0xB6, 0xE6, 0xB6, 0xDE, /* 0xC4-0xC7 */
+	0xDC, 0xDC, 0xB6, 0xE8, 0xDC, 0xCF, 0xDC, 0xCE, /* 0xC8-0xCB */
+	0xDC, 0xCC, 0xDC, 0xDE, 0xB6, 0xDC, 0xDC, 0xD8, /* 0xCC-0xCF */
+	0xDC, 0xCD, 0xB6, 0xDF, 0xDC, 0xD6, 0xB6, 0xDA, /* 0xD0-0xD3 */
+	0xDC, 0xD2, 0xDC, 0xD9, 0xDC, 0xDB, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xDC, 0xDF, 0xB6, 0xE3, 0xDC, 0xCB, /* 0xD8-0xDB */
+	0xB6, 0xDD, 0xDC, 0xD0, 0x00, 0x00, 0xB6, 0xD8, /* 0xDC-0xDF */
+	0x00, 0x00, 0xB6, 0xE4, 0xDC, 0xDA, 0xB6, 0xE0, /* 0xE0-0xE3 */
+	0xB6, 0xE1, 0xB6, 0xE7, 0xB6, 0xDB, 0xA2, 0x5F, /* 0xE4-0xE7 */
+	0xB6, 0xD9, 0xDC, 0xD4, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB6, 0xE2, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0xDC, 0xDD, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0xB9, 0xCD, 0xB9, 0xC8, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xE1, 0x55, 0xE1, 0x51, 0x00, 0x00, /* 0xF8-0xFB */
+	0xE1, 0x4B, 0xB9, 0xC2, 0xB9, 0xBE, 0xE1, 0x54, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_56[512] = {
+	0xB9, 0xBF, 0xE1, 0x4E, 0xE1, 0x50, 0x00, 0x00, /* 0x00-0x03 */
+	0xE1, 0x53, 0x00, 0x00, 0xB9, 0xC4, 0x00, 0x00, /* 0x04-0x07 */
+	0xB9, 0xCB, 0xB9, 0xC5, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0xE1, 0x49, 0xB9, 0xC6, 0xB9, 0xC7, 0xE1, 0x4C, /* 0x0C-0x0F */
+	0xB9, 0xCC, 0x00, 0x00, 0xE1, 0x4A, 0xE1, 0x4F, /* 0x10-0x13 */
+	0xB9, 0xC3, 0xE1, 0x48, 0xB9, 0xC9, 0xB9, 0xC1, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB9, 0xC0, /* 0x18-0x1B */
+	0xE1, 0x4D, 0xE1, 0x52, 0x00, 0x00, 0xB9, 0xCA, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE1, 0x47, /* 0x24-0x27 */
+	0x00, 0x00, 0xBC, 0x4D, 0xE5, 0x47, 0x00, 0x00, /* 0x28-0x2B */
+	0xE5, 0x44, 0x00, 0x00, 0xBC, 0x47, 0xBC, 0x53, /* 0x2C-0x2F */
+	0xBC, 0x54, 0x00, 0x00, 0xBC, 0x4A, 0xE5, 0x42, /* 0x30-0x33 */
+	0xBC, 0x4C, 0xE4, 0xF9, 0xBC, 0x52, 0x00, 0x00, /* 0x34-0x37 */
+	0xE5, 0x46, 0xBC, 0x49, 0xE5, 0x48, 0xBC, 0x48, /* 0x38-0x3B */
+	0x00, 0x00, 0xE5, 0x43, 0xE5, 0x45, 0xBC, 0x4B, /* 0x3C-0x3F */
+	0xE5, 0x41, 0xE4, 0xFA, 0xE4, 0xF7, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0xD8, 0x6B, 0xE4, 0xFD, 0x00, 0x00, /* 0x44-0x47 */
+	0xE4, 0xF6, 0xE4, 0xFC, 0xE4, 0xFB, 0x00, 0x00, /* 0x48-0x4B */
+	0xE4, 0xF8, 0x00, 0x00, 0xBC, 0x4F, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xBC, 0x4E, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xBC, 0x50, /* 0x54-0x57 */
+	0xE4, 0xFE, 0xBE, 0xB2, 0xE5, 0x40, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0x45, 0x00, 0x00, /* 0x5C-0x5F */
+	0xE8, 0xFD, 0x00, 0x00, 0xBE, 0xBE, 0xE9, 0x42, /* 0x60-0x63 */
+	0xBE, 0xB6, 0xBE, 0xBA, 0xE9, 0x41, 0x00, 0x00, /* 0x64-0x67 */
+	0xBE, 0xB9, 0xBE, 0xB5, 0xBE, 0xB8, 0xBE, 0xB3, /* 0x68-0x6B */
+	0xBE, 0xBD, 0xE9, 0x43, 0xE8, 0xFE, 0xBE, 0xBC, /* 0x6C-0x6F */
+	0xE8, 0xFC, 0xBE, 0xBB, 0xE9, 0x44, 0xE9, 0x40, /* 0x70-0x73 */
+	0xBC, 0x51, 0x00, 0x00, 0xBE, 0xBF, 0xE9, 0x46, /* 0x74-0x77 */
+	0xBE, 0xB7, 0xBE, 0xB4, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0xEC, 0xC6, 0xEC, 0xC8, /* 0x7C-0x7F */
+	
+	0xC0, 0x7B, 0xEC, 0xC9, 0xEC, 0xC7, 0xEC, 0xC5, /* 0x80-0x83 */
+	0xEC, 0xC4, 0xC0, 0x7D, 0xEC, 0xC3, 0xC0, 0x7E, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0xEC, 0xC1, 0xEC, 0xC2, 0xC0, 0x7A, 0xC0, 0xA1, /* 0x8C-0x8F */
+	0xC0, 0x7C, 0x00, 0x00, 0x00, 0x00, 0xEC, 0xC0, /* 0x90-0x93 */
+	0x00, 0x00, 0xC2, 0x50, 0x00, 0x00, 0xEF, 0xBC, /* 0x94-0x97 */
+	0xEF, 0xBA, 0xEF, 0xBF, 0xEF, 0xBD, 0x00, 0x00, /* 0x98-0x9B */
+	0xEF, 0xBB, 0xEF, 0xBE, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xC3, 0x60, 0xF1, 0xF2, 0xF1, 0xF3, /* 0xA4-0xA7 */
+	0xC4, 0x56, 0x00, 0x00, 0xF1, 0xF4, 0xF1, 0xF0, /* 0xA8-0xAB */
+	0xF1, 0xF5, 0xF1, 0xF1, 0xC2, 0x51, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0xF3, 0xFE, 0xF4, 0x41, /* 0xB0-0xB3 */
+	0xC4, 0x59, 0xF4, 0x40, 0xC4, 0x58, 0xC4, 0x57, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0xC4, 0x5A, 0xF5, 0xC5, 0xF5, 0xC6, 0x00, 0x00, /* 0xBC-0xBF */
+	0xC4, 0xDA, 0xC4, 0xD9, 0xC4, 0xDB, 0xF5, 0xC4, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xF6, 0xD8, 0xF6, 0xD7, 0x00, 0x00, /* 0xC4-0xC7 */
+	0xC5, 0x6D, 0xC5, 0x6F, 0xC5, 0x6E, 0xF6, 0xD9, /* 0xC8-0xCB */
+	0xC5, 0xC8, 0xF8, 0xA6, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0xC5, 0xF1, 0x00, 0x00, 0xF8, 0xA5, /* 0xD0-0xD3 */
+	0xF8, 0xEE, 0x00, 0x00, 0x00, 0x00, 0xC9, 0x49, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0xA5, 0x7D, 0xA5, 0x7C, /* 0xD8-0xDB */
+	0x00, 0x00, 0xA6, 0x5F, 0xA6, 0x5E, 0xC9, 0xC7, /* 0xDC-0xDF */
+	0xA6, 0x5D, 0xC9, 0xC6, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0xA7, 0x79, 0xCA, 0xA9, 0x00, 0x00, 0xCA, 0xA8, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0xA7, 0x77, 0xA7, 0x7A, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0xCA, 0xA7, 0x00, 0x00, /* 0xEC-0xEF */
+	0xA7, 0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCB, 0xF0, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xCB, 0xF1, 0xA9, 0x54, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xAB, 0xAA, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_57[512] = {
+	0x00, 0x00, 0xD1, 0x48, 0xD1, 0x49, 0xAE, 0x45, /* 0x00-0x03 */
+	0xAE, 0x46, 0x00, 0x00, 0x00, 0x00, 0xD4, 0xAC, /* 0x04-0x07 */
+	0xB0, 0xE9, 0xB0, 0xEB, 0xD4, 0xAB, 0xB0, 0xEA, /* 0x08-0x0B */
+	0xD8, 0x7C, 0xB3, 0xF2, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0xB6, 0xE9, 0xB6, 0xEA, /* 0x10-0x13 */
+	0xDC, 0xE1, 0x00, 0x00, 0xB9, 0xCF, 0x00, 0x00, /* 0x14-0x17 */
+	0xB9, 0xCE, 0x00, 0x00, 0xE5, 0x49, 0xE9, 0x48, /* 0x18-0x1B */
+	0xE9, 0x47, 0x00, 0x00, 0xF9, 0x6B, 0xA4, 0x67, /* 0x1C-0x1F */
+	0xC9, 0x59, 0x00, 0x00, 0xC9, 0x6E, 0xC9, 0x6F, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0xA6, 0x62, 0xA6, 0x66, 0xC9, 0xC9, 0x00, 0x00, /* 0x28-0x2B */
+	0xA6, 0x64, 0xA6, 0x63, 0xC9, 0xC8, 0xA6, 0x65, /* 0x2C-0x2F */
+	0xA6, 0x61, 0x00, 0x00, 0x00, 0x00, 0xA6, 0x60, /* 0x30-0x33 */
+	0xC9, 0xCA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA7, 0xA6, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0xA7, 0xA3, 0x00, 0x00, /* 0x3C-0x3F */
+	0xA7, 0x7D, 0xCA, 0xAA, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0xCA, 0xAB, 0x00, 0x00, 0xA7, 0xA1, /* 0x44-0x47 */
+	0x00, 0x00, 0xCA, 0xAD, 0xA7, 0x7B, 0xCA, 0xAE, /* 0x48-0x4B */
+	0xCA, 0xAC, 0xA7, 0x7E, 0xA7, 0xA2, 0xA7, 0xA5, /* 0x4C-0x4F */
+	0xA7, 0xA4, 0xA7, 0x7C, 0xCA, 0xAF, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0xA9, 0x59, 0xCB, 0xFE, 0x00, 0x00, /* 0x60-0x63 */
+	0xA9, 0x5B, 0x00, 0x00, 0xA9, 0x5A, 0x00, 0x00, /* 0x64-0x67 */
+	0xCC, 0x40, 0xA9, 0x58, 0xA9, 0x57, 0xCB, 0xF5, /* 0x68-0x6B */
+	0x00, 0x00, 0xCB, 0xF4, 0x00, 0x00, 0xCB, 0xF2, /* 0x6C-0x6F */
+	0xCB, 0xF7, 0xCB, 0xF6, 0xCB, 0xF3, 0xCB, 0xFC, /* 0x70-0x73 */
+	0xCB, 0xFD, 0xCB, 0xFA, 0xCB, 0xF8, 0xA9, 0x56, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCB, 0xFB, /* 0x78-0x7B */
+	0xA9, 0x5C, 0xCC, 0x41, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xCB, 0xF9, 0x00, 0x00, 0xAB, 0xAB, 0xA9, 0x55, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xAB, 0xAC, /* 0x88-0x8B */
+	0xCE, 0x54, 0x00, 0x00, 0x00, 0x00, 0xCE, 0x5A, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xAB, 0xB2, /* 0x90-0x93 */
+	0xCE, 0x58, 0xCE, 0x5E, 0x00, 0x00, 0xCE, 0x55, /* 0x94-0x97 */
+	0xCE, 0x59, 0xCE, 0x5B, 0xCE, 0x5D, 0xCE, 0x57, /* 0x98-0x9B */
+	0x00, 0x00, 0xCE, 0x56, 0xCE, 0x51, 0xCE, 0x52, /* 0x9C-0x9F */
+	0xAB, 0xAD, 0x00, 0x00, 0xAB, 0xAF, 0xAB, 0xAE, /* 0xA0-0xA3 */
+	0xCE, 0x53, 0xCE, 0x5C, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0xAB, 0xB1, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xCE, 0x50, 0xD1, 0x53, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xD1, 0x52, 0xD1, 0x57, 0xD1, 0x4E, 0x00, 0x00, /* 0xB8-0xBB */
+	0xD1, 0x51, 0xD1, 0x50, 0x00, 0x00, 0xD1, 0x54, /* 0xBC-0xBF */
+	0x00, 0x00, 0xD1, 0x58, 0xAE, 0x47, 0xAE, 0x4A, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0xD1, 0x4F, 0xD1, 0x55, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xAE, 0x49, /* 0xC8-0xCB */
+	0xD1, 0x4A, 0x00, 0x00, 0xAB, 0xB0, 0xD4, 0xBA, /* 0xCC-0xCF */
+	0xD1, 0x56, 0x00, 0x00, 0xD1, 0x4D, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xAE, 0x48, 0xD1, 0x4C, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0xD4, 0xB1, 0x00, 0x00, 0x00, 0x00, 0xB0, 0xEC, /* 0xDC-0xDF */
+	0xB0, 0xF0, 0xD4, 0xC1, 0xD4, 0xAF, 0xD4, 0xBD, /* 0xE0-0xE3 */
+	0xB0, 0xF1, 0xD4, 0xBF, 0x00, 0x00, 0xD4, 0xC5, /* 0xE4-0xE7 */
+	0x00, 0x00, 0xD4, 0xC9, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0xD4, 0xC0, 0xD4, 0xB4, 0xD4, 0xBC, 0x00, 0x00, /* 0xEC-0xEF */
+	0xD4, 0xCA, 0xD4, 0xC8, 0xD4, 0xBE, 0xD4, 0xB9, /* 0xF0-0xF3 */
+	0xD4, 0xB2, 0xD8, 0xA6, 0xD4, 0xB0, 0xB0, 0xF5, /* 0xF4-0xF7 */
+	0xD4, 0xB7, 0xB0, 0xF6, 0xB0, 0xF2, 0xD4, 0xAD, /* 0xF8-0xFB */
+	0xD4, 0xC3, 0xD4, 0xB5, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_58[512] = {
+	0xD4, 0xB3, 0xD4, 0xC6, 0xB0, 0xF3, 0x00, 0x00, /* 0x00-0x03 */
+	0xD4, 0xCC, 0xB0, 0xED, 0xB0, 0xEF, 0xD4, 0xBB, /* 0x04-0x07 */
+	0xD4, 0xB6, 0xAE, 0x4B, 0xB0, 0xEE, 0xD4, 0xB8, /* 0x08-0x0B */
+	0xD4, 0xC7, 0xD4, 0xCB, 0xD4, 0xC2, 0x00, 0x00, /* 0x0C-0x0F */
+	0xD4, 0xC4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0xD4, 0xAE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0xD8, 0xA1, 0x00, 0x00, 0xD8, 0xAA, /* 0x18-0x1B */
+	0xD8, 0xA9, 0xB3, 0xFA, 0xD8, 0xA2, 0x00, 0x00, /* 0x1C-0x1F */
+	0xB3, 0xFB, 0xB3, 0xF9, 0x00, 0x00, 0xD8, 0xA4, /* 0x20-0x23 */
+	0xB3, 0xF6, 0xD8, 0xA8, 0x00, 0x00, 0xD8, 0xA3, /* 0x24-0x27 */
+	0xD8, 0xA5, 0xD8, 0x7D, 0xB3, 0xF4, 0x00, 0x00, /* 0x28-0x2B */
+	0xD8, 0xB2, 0xD8, 0xB1, 0xD8, 0xAE, 0xB3, 0xF3, /* 0x2C-0x2F */
+	0xB3, 0xF7, 0xB3, 0xF8, 0xD1, 0x4B, 0xD8, 0xAB, /* 0x30-0x33 */
+	0xB3, 0xF5, 0xB0, 0xF4, 0xD8, 0xAD, 0xD8, 0x7E, /* 0x34-0x37 */
+	0xD8, 0xB0, 0xD8, 0xAF, 0x00, 0x00, 0xD8, 0xB3, /* 0x38-0x3B */
+	0x00, 0x00, 0xDC, 0xEF, 0x00, 0x00, 0xD8, 0xAC, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0xD8, 0xA7, 0xDC, 0xE7, 0xB6, 0xF4, 0xB6, 0xF7, /* 0x48-0x4B */
+	0xB6, 0xF2, 0xDC, 0xE6, 0xDC, 0xEA, 0xDC, 0xE5, /* 0x4C-0x4F */
+	0x00, 0x00, 0xB6, 0xEC, 0xB6, 0xF6, 0xDC, 0xE2, /* 0x50-0x53 */
+	0xB6, 0xF0, 0xDC, 0xE9, 0x00, 0x00, 0xB6, 0xEE, /* 0x54-0x57 */
+	0xB6, 0xED, 0xDC, 0xEC, 0xB6, 0xEF, 0xDC, 0xEE, /* 0x58-0x5B */
+	0x00, 0x00, 0xDC, 0xEB, 0xB6, 0xEB, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0xB6, 0xF5, 0xDC, 0xF0, /* 0x60-0x63 */
+	0xDC, 0xE4, 0xDC, 0xED, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0xDC, 0xE3, 0x00, 0x00, 0x00, 0x00, 0xB6, 0xF1, /* 0x68-0x6B */
+	0x00, 0x00, 0xB6, 0xF3, 0x00, 0x00, 0xDC, 0xE8, /* 0x6C-0x6F */
+	0x00, 0x00, 0xDC, 0xF1, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0xE1, 0x5D, 0xB9, 0xD0, 0xE1, 0x63, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0xB9, 0xD5, 0xE1, 0x5F, 0xE1, 0x66, /* 0x78-0x7B */
+	0xE1, 0x57, 0xB9, 0xD7, 0xB9, 0xD1, 0xE1, 0x5C, /* 0x7C-0x7F */
+	
+	0xBC, 0x55, 0xE1, 0x5B, 0xE1, 0x64, 0xB9, 0xD2, /* 0x80-0x83 */
+	0x00, 0x00, 0xB9, 0xD6, 0xE1, 0x5A, 0xE1, 0x60, /* 0x84-0x87 */
+	0xE1, 0x65, 0xE1, 0x56, 0xB9, 0xD4, 0xE1, 0x5E, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0x62, 0xE1, 0x68, /* 0x8C-0x8F */
+	0xE1, 0x58, 0xE1, 0x61, 0x00, 0x00, 0xB9, 0xD3, /* 0x90-0x93 */
+	0xE1, 0x67, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0xE1, 0x59, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0xBC, 0x59, 0xE5, 0x4B, 0xBC, 0x57, 0xBC, 0x56, /* 0x9C-0x9F */
+	0xE5, 0x4D, 0xE5, 0x52, 0x00, 0x00, 0xE5, 0x4E, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xE5, 0x51, 0xBC, 0x5C, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xBE, 0xA5, 0xBC, 0x5B, 0x00, 0x00, 0xE5, 0x4A, /* 0xA8-0xAB */
+	0xE5, 0x50, 0x00, 0x00, 0xBC, 0x5A, 0xE5, 0x4F, /* 0xAC-0xAF */
+	0x00, 0x00, 0xE5, 0x4C, 0x00, 0x00, 0xBC, 0x58, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0x4D, 0xF9, 0xD9, /* 0xB8-0xBB */
+	0xE9, 0x4F, 0xE9, 0x4A, 0xBE, 0xC1, 0xE9, 0x4C, /* 0xBC-0xBF */
+	0x00, 0x00, 0xBE, 0xC0, 0xE9, 0x4E, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xBE, 0xC3, 0xE9, 0x50, 0xBE, 0xC2, /* 0xC4-0xC7 */
+	0xE9, 0x49, 0xE9, 0x4B, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0xC0, 0xA5, 0xEC, 0xCC, /* 0xCC-0xCF */
+	0x00, 0x00, 0xC0, 0xA4, 0xEC, 0xCD, 0xC0, 0xA3, /* 0xD0-0xD3 */
+	0xEC, 0xCB, 0xC0, 0xA2, 0xEC, 0xCA, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xC2, 0x53, 0xC2, 0x52, 0xF1, 0xF6, 0xF1, 0xF8, /* 0xD8-0xDB */
+	0x00, 0x00, 0xF1, 0xF7, 0xC3, 0x61, 0xC3, 0x62, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0xC3, 0x63, 0xF4, 0x42, /* 0xE0-0xE3 */
+	0xC4, 0x5B, 0x00, 0x00, 0x00, 0x00, 0xF7, 0xD3, /* 0xE4-0xE7 */
+	0xF7, 0xD2, 0xC5, 0xF2, 0x00, 0x00, 0xA4, 0x68, /* 0xE8-0xEB */
+	0xA4, 0xD0, 0x00, 0x00, 0x00, 0x00, 0xA7, 0xA7, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xCE, 0x5F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xB3, 0xFC, 0xB3, 0xFD, 0x00, 0x00, /* 0xF8-0xFB */
+	0xDC, 0xF2, 0xB9, 0xD8, 0xE1, 0x69, 0xE5, 0x53, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_59[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC9, 0x5A, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0xCA, 0xB0, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0xCC, 0x42, 0xCE, 0x60, 0xD1, 0x59, 0xAE, 0x4C, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0xF1, 0xF9, 0x00, 0x00, /* 0x10-0x13 */
+	0xC4, 0xDC, 0xA4, 0x69, 0xA5, 0x7E, 0xC9, 0x70, /* 0x14-0x17 */
+	0x00, 0x00, 0xA6, 0x67, 0xA6, 0x68, 0x00, 0x00, /* 0x18-0x1B */
+	0xA9, 0x5D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0xB0, 0xF7, 0x00, 0x00, 0xB9, 0xDA, 0x00, 0x00, /* 0x20-0x23 */
+	0xB9, 0xDB, 0xB9, 0xD9, 0x00, 0x00, 0xA4, 0x6A, /* 0x24-0x27 */
+	0x00, 0x00, 0xA4, 0xD1, 0xA4, 0xD3, 0xA4, 0xD2, /* 0x28-0x2B */
+	0xC9, 0x5B, 0xA4, 0xD4, 0xA5, 0xA1, 0xC9, 0x71, /* 0x2C-0x2F */
+	0x00, 0x00, 0xA5, 0xA2, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA6, 0x69, /* 0x34-0x37 */
+	0xA6, 0x6A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0xC9, 0xCB, 0x00, 0x00, 0xA7, 0xA8, 0x00, 0x00, /* 0x3C-0x3F */
+	0xCA, 0xB1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0xA9, 0x61, 0xCC, 0x43, 0x00, 0x00, 0xA9, 0x5F, /* 0x44-0x47 */
+	0xA9, 0x60, 0xA9, 0x5E, 0xD1, 0x5A, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0xAB, 0xB6, 0xAB, 0xB5, /* 0x4C-0x4F */
+	0xAB, 0xB7, 0xAB, 0xB4, 0x00, 0x00, 0xCE, 0x61, /* 0x50-0x53 */
+	0xA9, 0x62, 0xAB, 0xB3, 0x00, 0x00, 0xAE, 0x4D, /* 0x54-0x57 */
+	0xAE, 0x4E, 0x00, 0x00, 0xAE, 0x4F, 0x00, 0x00, /* 0x58-0x5B */
+	0xD4, 0xCD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0xB3, 0xFE, 0xD8, 0xB4, 0xB0, 0xF8, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB6, 0xF8, /* 0x64-0x67 */
+	0x00, 0x00, 0xB9, 0xDD, 0xB9, 0xDC, 0xE1, 0x6A, /* 0x68-0x6B */
+	0x00, 0x00, 0xBC, 0x5D, 0xBE, 0xC4, 0x00, 0x00, /* 0x6C-0x6F */
+	0xEF, 0xC0, 0xF6, 0xDA, 0xF7, 0xD4, 0xA4, 0x6B, /* 0x70-0x73 */
+	0xA5, 0xA3, 0x00, 0x00, 0xA5, 0xA4, 0xC9, 0xD1, /* 0x74-0x77 */
+	0xA6, 0x6C, 0xA6, 0x6F, 0x00, 0x00, 0xC9, 0xCF, /* 0x78-0x7B */
+	0xC9, 0xCD, 0xA6, 0x6E, 0xC9, 0xD0, 0xC9, 0xD2, /* 0x7C-0x7F */
+	
+	0xC9, 0xCC, 0xA6, 0x71, 0xA6, 0x70, 0xA6, 0x6D, /* 0x80-0x83 */
+	0xA6, 0x6B, 0xC9, 0xCE, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0xA7, 0xB3, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0xA7, 0xB0, 0xCA, 0xB6, 0xCA, 0xB9, /* 0x8C-0x8F */
+	0xCA, 0xB8, 0x00, 0x00, 0xA7, 0xAA, 0xA7, 0xB2, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0xA7, 0xAF, 0xCA, 0xB5, /* 0x94-0x97 */
+	0xCA, 0xB3, 0xA7, 0xAE, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0xA7, 0xA9, 0xA7, 0xAC, 0x00, 0x00, /* 0x9C-0x9F */
+	0xCA, 0xB4, 0xCA, 0xBB, 0xCA, 0xB7, 0xA7, 0xAD, /* 0xA0-0xA3 */
+	0xA7, 0xB1, 0xA7, 0xB4, 0xCA, 0xB2, 0xCA, 0xBA, /* 0xA4-0xA7 */
+	0xA7, 0xAB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0xA9, 0x67, 0xA9, 0x6F, /* 0xAC-0xAF */
+	0x00, 0x00, 0xCC, 0x4F, 0xCC, 0x48, 0xA9, 0x70, /* 0xB0-0xB3 */
+	0xCC, 0x53, 0xCC, 0x44, 0xCC, 0x4B, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xA9, 0x66, 0xCC, 0x45, 0xA9, 0x64, /* 0xB8-0xBB */
+	0xCC, 0x4C, 0xCC, 0x50, 0xA9, 0x63, 0x00, 0x00, /* 0xBC-0xBF */
+	0xCC, 0x51, 0xCC, 0x4A, 0x00, 0x00, 0xCC, 0x4D, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xA9, 0x72, 0xA9, 0x69, 0xCC, 0x54, /* 0xC4-0xC7 */
+	0xCC, 0x52, 0x00, 0x00, 0xA9, 0x6E, 0xA9, 0x6C, /* 0xC8-0xCB */
+	0xCC, 0x49, 0xA9, 0x6B, 0xCC, 0x47, 0xCC, 0x46, /* 0xCC-0xCF */
+	0xA9, 0x6A, 0xA9, 0x68, 0xA9, 0x71, 0xA9, 0x6D, /* 0xD0-0xD3 */
+	0xA9, 0x65, 0x00, 0x00, 0xCC, 0x4E, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xAB, 0xB9, 0x00, 0x00, 0xAB, 0xC0, 0xCE, 0x6F, /* 0xD8-0xDB */
+	0xAB, 0xB8, 0xCE, 0x67, 0xCE, 0x63, 0x00, 0x00, /* 0xDC-0xDF */
+	0xCE, 0x73, 0xCE, 0x62, 0x00, 0x00, 0xAB, 0xBB, /* 0xE0-0xE3 */
+	0xCE, 0x6C, 0xAB, 0xBE, 0xAB, 0xC1, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xAB, 0xBC, 0xCE, 0x70, 0xAB, 0xBF, 0x00, 0x00, /* 0xE8-0xEB */
+	0xAE, 0x56, 0xCE, 0x76, 0xCE, 0x64, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0xCE, 0x66, 0xCE, 0x6D, 0xCE, 0x71, /* 0xF0-0xF3 */
+	0xCE, 0x75, 0xCE, 0x72, 0xCE, 0x6B, 0xCE, 0x6E, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0xCE, 0x68, 0xAB, 0xC3, /* 0xF8-0xFB */
+	0xCE, 0x6A, 0xCE, 0x69, 0xCE, 0x74, 0xAB, 0xBA, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_5A[512] = {
+	0xCE, 0x65, 0xAB, 0xC2, 0x00, 0x00, 0xAB, 0xBD, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xAE, 0x5C, 0xD1, 0x62, 0x00, 0x00, /* 0x08-0x0B */
+	0xAE, 0x5B, 0x00, 0x00, 0x00, 0x00, 0xD1, 0x60, /* 0x0C-0x0F */
+	0x00, 0x00, 0xAE, 0x50, 0x00, 0x00, 0xAE, 0x55, /* 0x10-0x13 */
+	0x00, 0x00, 0xD1, 0x5F, 0xD1, 0x5C, 0xD1, 0x61, /* 0x14-0x17 */
+	0xAE, 0x51, 0xD1, 0x5B, 0x00, 0x00, 0xAE, 0x54, /* 0x18-0x1B */
+	0xAE, 0x52, 0x00, 0x00, 0xD1, 0x63, 0xAE, 0x53, /* 0x1C-0x1F */
+	0xAE, 0x57, 0x00, 0x00, 0x00, 0x00, 0xAE, 0x58, /* 0x20-0x23 */
+	0x00, 0x00, 0xAE, 0x5A, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0xAE, 0x59, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0xD1, 0x5D, 0xD1, 0x5E, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD1, 0x64, /* 0x30-0x33 */
+	0x00, 0x00, 0xD4, 0xD4, 0xB0, 0xF9, 0xD8, 0xC2, /* 0x34-0x37 */
+	0xD4, 0xD3, 0xD4, 0xE6, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0xB1, 0x40, 0x00, 0x00, 0xD4, 0xE4, 0x00, 0x00, /* 0x3C-0x3F */
+	0xB0, 0xFE, 0xB0, 0xFA, 0xD4, 0xED, 0xD4, 0xDD, /* 0x40-0x43 */
+	0xD4, 0xE0, 0x00, 0x00, 0xB1, 0x43, 0xD4, 0xEA, /* 0x44-0x47 */
+	0xD4, 0xE2, 0xB0, 0xFB, 0xB1, 0x44, 0x00, 0x00, /* 0x48-0x4B */
+	0xD4, 0xE7, 0xD4, 0xE5, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0xD4, 0xD6, 0xD4, 0xEB, 0xD4, 0xDF, 0xD4, 0xDA, /* 0x50-0x53 */
+	0x00, 0x00, 0xD4, 0xD0, 0xD4, 0xEC, 0xD4, 0xDC, /* 0x54-0x57 */
+	0xD4, 0xCF, 0x00, 0x00, 0xB1, 0x42, 0xD4, 0xE1, /* 0x58-0x5B */
+	0xD4, 0xEE, 0xD4, 0xDE, 0xD4, 0xD2, 0xD4, 0xD7, /* 0x5C-0x5F */
+	0xD4, 0xCE, 0x00, 0x00, 0xB1, 0x41, 0x00, 0x00, /* 0x60-0x63 */
+	0xD4, 0xDB, 0xD4, 0xD8, 0xB0, 0xFC, 0xD4, 0xD1, /* 0x64-0x67 */
+	0x00, 0x00, 0xD4, 0xE9, 0xB0, 0xFD, 0x00, 0x00, /* 0x68-0x6B */
+	0xD4, 0xD9, 0xD4, 0xD5, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0xD4, 0xE8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB4, 0x40, /* 0x74-0x77 */
+	0xD8, 0xBB, 0x00, 0x00, 0xD8, 0xB8, 0xD8, 0xC9, /* 0x78-0x7B */
+	0xD8, 0xBD, 0xD8, 0xCA, 0x00, 0x00, 0xB4, 0x42, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD8, 0xC6, /* 0x80-0x83 */
+	0xD8, 0xC3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0xD8, 0xC4, 0xD8, 0xC7, /* 0x88-0x8B */
+	0xD8, 0xCB, 0x00, 0x00, 0xD4, 0xE3, 0xD8, 0xCD, /* 0x8C-0x8F */
+	0xDD, 0x47, 0x00, 0x00, 0xB4, 0x43, 0xD8, 0xCE, /* 0x90-0x93 */
+	0xD8, 0xB6, 0xD8, 0xC0, 0x00, 0x00, 0xD8, 0xC5, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0xB4, 0x41, 0xB4, 0x44, /* 0x98-0x9B */
+	0xD8, 0xCC, 0xD8, 0xCF, 0xD8, 0xBA, 0xD8, 0xB7, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0xD8, 0xB9, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xD8, 0xBE, 0xD8, 0xBC, 0xB4, 0x45, /* 0xA4-0xA7 */
+	0x00, 0x00, 0xD8, 0xC8, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0xD8, 0xBF, 0x00, 0x00, 0xD8, 0xC1, 0xD8, 0xB5, /* 0xAC-0xAF */
+	0xDC, 0xFA, 0xDC, 0xF8, 0xB7, 0x42, 0xB7, 0x40, /* 0xB0-0xB3 */
+	0xDD, 0x43, 0xDC, 0xF9, 0xDD, 0x44, 0xDD, 0x40, /* 0xB4-0xB7 */
+	0xDC, 0xF7, 0xDD, 0x46, 0xDC, 0xF6, 0xDC, 0xFD, /* 0xB8-0xBB */
+	0xB6, 0xFE, 0xB6, 0xFD, 0xB6, 0xFC, 0xDC, 0xFB, /* 0xBC-0xBF */
+	0xDD, 0x41, 0xB6, 0xF9, 0xB7, 0x41, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xDC, 0xF4, 0x00, 0x00, 0xDC, 0xFE, 0xDC, 0xF3, /* 0xC4-0xC7 */
+	0xDC, 0xFC, 0xB6, 0xFA, 0xDD, 0x42, 0xDC, 0xF5, /* 0xC8-0xCB */
+	0xB6, 0xFB, 0xDD, 0x45, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xE1, 0x6E, 0xB9, 0xE2, 0xB9, 0xE1, /* 0xD4-0xD7 */
+	0xB9, 0xE3, 0xE1, 0x7A, 0xE1, 0x70, 0xE1, 0x76, /* 0xD8-0xDB */
+	0xE1, 0x6B, 0xE1, 0x79, 0xE1, 0x78, 0xE1, 0x7C, /* 0xDC-0xDF */
+	0xE1, 0x75, 0xB9, 0xDE, 0xE1, 0x74, 0xB9, 0xE4, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xE1, 0x6D, 0xB9, 0xDF, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xE1, 0x7B, 0xB9, 0xE0, 0xE1, 0x6F, 0xE1, 0x72, /* 0xE8-0xEB */
+	0xE1, 0x77, 0xE1, 0x71, 0xE1, 0x6C, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE1, 0x73, /* 0xF0-0xF3 */
+	0xE5, 0x55, 0xBC, 0x61, 0xE5, 0x58, 0xE5, 0x57, /* 0xF4-0xF7 */
+	0xE5, 0x5A, 0xE5, 0x5C, 0xF9, 0xDC, 0xBC, 0x5F, /* 0xF8-0xFB */
+	0x00, 0x00, 0xE5, 0x56, 0x00, 0x00, 0xE5, 0x54, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_5B[512] = {
+	0x00, 0x00, 0xE5, 0x5D, 0xE5, 0x5B, 0xE5, 0x59, /* 0x00-0x03 */
+	0x00, 0x00, 0xE5, 0x5F, 0x00, 0x00, 0xE5, 0x5E, /* 0x04-0x07 */
+	0xBC, 0x63, 0xBC, 0x5E, 0x00, 0x00, 0xBC, 0x60, /* 0x08-0x0B */
+	0xBC, 0x62, 0x00, 0x00, 0x00, 0x00, 0xE5, 0x60, /* 0x0C-0x0F */
+	0xE9, 0x57, 0x00, 0x00, 0x00, 0x00, 0xE9, 0x56, /* 0x10-0x13 */
+	0xE9, 0x55, 0x00, 0x00, 0xE9, 0x58, 0xE9, 0x51, /* 0x14-0x17 */
+	0x00, 0x00, 0xE9, 0x52, 0xE9, 0x5A, 0xE9, 0x53, /* 0x18-0x1B */
+	0x00, 0x00, 0xBE, 0xC5, 0xE9, 0x5C, 0x00, 0x00, /* 0x1C-0x1F */
+	0xE9, 0x5B, 0xE9, 0x54, 0x00, 0x00, 0xEC, 0xD1, /* 0x20-0x23 */
+	0xC0, 0xA8, 0xEC, 0xCF, 0xEC, 0xD4, 0xEC, 0xD3, /* 0x24-0x27 */
+	0xE9, 0x59, 0x00, 0x00, 0xC0, 0xA7, 0x00, 0x00, /* 0x28-0x2B */
+	0xEC, 0xD2, 0xEC, 0xCE, 0xEC, 0xD6, 0xEC, 0xD5, /* 0x2C-0x2F */
+	0xC0, 0xA6, 0x00, 0x00, 0xEC, 0xD0, 0x00, 0x00, /* 0x30-0x33 */
+	0xBE, 0xC6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0xC2, 0x54, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0xEF, 0xC1, 0xF1, 0xFA, 0xF1, 0xFB, 0xF1, 0xFC, /* 0x3C-0x3F */
+	0xC4, 0x5C, 0x00, 0x00, 0x00, 0x00, 0xC4, 0x5D, /* 0x40-0x43 */
+	0x00, 0x00, 0xF4, 0x43, 0x00, 0x00, 0xF5, 0xC8, /* 0x44-0x47 */
+	0xF5, 0xC7, 0x00, 0x00, 0x00, 0x00, 0xF6, 0xDB, /* 0x48-0x4B */
+	0xF6, 0xDC, 0xF7, 0xD5, 0xF8, 0xA7, 0x00, 0x00, /* 0x4C-0x4F */
+	0xA4, 0x6C, 0xA4, 0x6D, 0x00, 0x00, 0xA4, 0x6E, /* 0x50-0x53 */
+	0xA4, 0xD5, 0xA5, 0xA5, 0xC9, 0xD3, 0xA6, 0x72, /* 0x54-0x57 */
+	0xA6, 0x73, 0x00, 0x00, 0xA7, 0xB7, 0xA7, 0xB8, /* 0x58-0x5B */
+	0xA7, 0xB6, 0xA7, 0xB5, 0x00, 0x00, 0xA9, 0x73, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0xCC, 0x55, 0xA9, 0x75, /* 0x60-0x63 */
+	0xA9, 0x74, 0xCC, 0x56, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0xAB, 0xC4, 0x00, 0x00, 0xAE, 0x5D, /* 0x68-0x6B */
+	0xD1, 0x65, 0x00, 0x00, 0xD4, 0xF0, 0x00, 0x00, /* 0x6C-0x6F */
+	0xB1, 0x45, 0xB4, 0x47, 0xD4, 0xEF, 0xB4, 0x46, /* 0x70-0x73 */
+	0x00, 0x00, 0xB9, 0xE5, 0x00, 0x00, 0xE1, 0x7D, /* 0x74-0x77 */
+	0xBE, 0xC7, 0x00, 0x00, 0xC0, 0xA9, 0xEC, 0xD7, /* 0x78-0x7B */
+	0x00, 0x00, 0xC4, 0x5E, 0x00, 0x00, 0xC5, 0x70, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xC9, 0x72, 0x00, 0x00, 0xA5, 0xA6, /* 0x80-0x83 */
+	0xC9, 0x73, 0xA6, 0x76, 0x00, 0x00, 0xA6, 0x74, /* 0x84-0x87 */
+	0xA6, 0x75, 0xA6, 0x77, 0x00, 0x00, 0xA7, 0xBA, /* 0x88-0x8B */
+	0xA7, 0xB9, 0x00, 0x00, 0xCA, 0xBC, 0xA7, 0xBB, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0xCA, 0xBD, 0xCC, 0x57, /* 0x90-0x93 */
+	0x00, 0x00, 0xCC, 0x58, 0x00, 0x00, 0xA9, 0x76, /* 0x94-0x97 */
+	0xA9, 0x78, 0xA9, 0x7A, 0xA9, 0x77, 0xA9, 0x7B, /* 0x98-0x9B */
+	0xA9, 0x79, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0xAB, 0xC8, 0xAB, 0xC5, /* 0xA0-0xA3 */
+	0xAB, 0xC7, 0xAB, 0xC9, 0xAB, 0xC6, 0xD1, 0x66, /* 0xA4-0xA7 */
+	0xCE, 0x77, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0xD1, 0x68, 0xD1, 0x67, 0xAE, 0x63, 0x00, 0x00, /* 0xAC-0xAF */
+	0xAE, 0x5F, 0x00, 0x00, 0x00, 0x00, 0xAE, 0x60, /* 0xB0-0xB3 */
+	0xAE, 0x62, 0xAE, 0x64, 0xAE, 0x61, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xAE, 0x66, 0xAE, 0x65, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB1, 0x4A, /* 0xBC-0xBF */
+	0xD4, 0xF2, 0xD4, 0xF1, 0xB1, 0x49, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xB1, 0x48, 0xB1, 0x47, 0xB1, 0x4B, 0xB1, 0x46, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0xD8, 0xD5, 0xD8, 0xD2, /* 0xC8-0xCB */
+	0xB4, 0x49, 0xD8, 0xD1, 0xD8, 0xD6, 0x00, 0x00, /* 0xCC-0xCF */
+	0xB4, 0x4B, 0xD8, 0xD4, 0xB4, 0x48, 0xB4, 0x4A, /* 0xD0-0xD3 */
+	0xD8, 0xD3, 0x00, 0x00, 0xDD, 0x48, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xDD, 0x49, 0xDD, 0x4A, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0xB9, 0xE6, 0xB9, 0xEE, /* 0xDC-0xDF */
+	0xE1, 0x7E, 0xB9, 0xE8, 0xB9, 0xEC, 0xE1, 0xA1, /* 0xE0-0xE3 */
+	0xB9, 0xED, 0xB9, 0xE9, 0xB9, 0xEA, 0xB9, 0xE7, /* 0xE4-0xE7 */
+	0xB9, 0xEB, 0xBC, 0x66, 0xD8, 0xD0, 0xBC, 0x67, /* 0xE8-0xEB */
+	0xBC, 0x65, 0x00, 0x00, 0xBC, 0x64, 0xE9, 0x5D, /* 0xEC-0xEF */
+	0xBE, 0xC8, 0xEC, 0xD8, 0xEC, 0xD9, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0xC3, 0x64, 0xC4, 0x5F, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xA4, 0x6F, 0x00, 0x00, 0xA6, 0x78, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_5C[512] = {
+	0x00, 0x00, 0xAB, 0xCA, 0x00, 0x00, 0xD1, 0x69, /* 0x00-0x03 */
+	0xAE, 0x67, 0x00, 0x00, 0x00, 0x00, 0xB1, 0x4E, /* 0x04-0x07 */
+	0xB1, 0x4D, 0xB1, 0x4C, 0xB4, 0x4C, 0xB4, 0x4D, /* 0x08-0x0B */
+	0xD8, 0xD7, 0xB9, 0xEF, 0xBE, 0xC9, 0xA4, 0x70, /* 0x0C-0x0F */
+	0xC9, 0x5C, 0xA4, 0xD6, 0xC9, 0x74, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0xC9, 0xD4, 0xA6, 0x79, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0xA9, 0x7C, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDD, 0x4B, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0xA4, 0x71, 0x00, 0x00, /* 0x20-0x23 */
+	0xA4, 0xD7, 0xC9, 0xD5, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0xCA, 0xBE, 0x00, 0x00, 0xCA, 0xBF, 0x00, 0x00, /* 0x28-0x2B */
+	0xA7, 0xBC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xD8, 0xD8, 0xB4, 0x4E, 0x00, 0x00, 0xDD, 0x4C, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0xAA, /* 0x34-0x37 */
+	0xA4, 0x72, 0xA4, 0xA8, 0xA4, 0xD8, 0xC9, 0x75, /* 0x38-0x3B */
+	0xA5, 0xA7, 0x00, 0x00, 0xA7, 0xC0, 0xA7, 0xBF, /* 0x3C-0x3F */
+	0xA7, 0xBD, 0xA7, 0xBE, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0xCC, 0x59, 0xA9, 0x7E, 0xA9, 0xA1, 0xCC, 0x5A, /* 0x44-0x47 */
+	0xA9, 0x7D, 0x00, 0x00, 0x00, 0x00, 0xAB, 0xCE, /* 0x48-0x4B */
+	0xCE, 0x78, 0xAB, 0xCD, 0xAB, 0xCB, 0xAB, 0xCC, /* 0x4C-0x4F */
+	0xAE, 0x6A, 0xAE, 0x68, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0xD1, 0x6B, 0xAE, 0x69, 0xD1, 0x6A, 0x00, 0x00, /* 0x54-0x57 */
+	0xAE, 0x5E, 0xD4, 0xF3, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0xB1, 0x50, 0xB1, 0x51, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0xB1, 0x4F, 0x00, 0x00, 0xB9, 0xF0, 0xE1, 0xA2, /* 0x60-0x63 */
+	0xBC, 0x68, 0xBC, 0x69, 0x00, 0x00, 0xE5, 0x61, /* 0x64-0x67 */
+	0xC0, 0xAB, 0xEF, 0xC2, 0xEF, 0xC3, 0x00, 0x00, /* 0x68-0x6B */
+	0xC4, 0xDD, 0xF8, 0xA8, 0xC9, 0x4B, 0xA4, 0xD9, /* 0x6C-0x6F */
+	0x00, 0x00, 0xA4, 0x73, 0x00, 0x00, 0xC9, 0x77, /* 0x70-0x73 */
+	0xC9, 0x76, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0xA6, 0x7A, 0xC9, 0xD7, 0xC9, 0xD8, /* 0x78-0x7B */
+	0xC9, 0xD6, 0x00, 0x00, 0xC9, 0xD9, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0xCA, 0xC7, 0x00, 0x00, /* 0x84-0x87 */
+	0xCA, 0xC2, 0xCA, 0xC4, 0xCA, 0xC6, 0xCA, 0xC3, /* 0x88-0x8B */
+	0xA7, 0xC4, 0xCA, 0xC0, 0x00, 0x00, 0xCA, 0xC1, /* 0x8C-0x8F */
+	0xA7, 0xC1, 0xA7, 0xC2, 0xCA, 0xC5, 0xCA, 0xC8, /* 0x90-0x93 */
+	0xA7, 0xC3, 0xCA, 0xC9, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0xCC, 0x68, 0x00, 0x00, 0xCC, 0x62, /* 0x9C-0x9F */
+	0xCC, 0x5D, 0xA9, 0xA3, 0xCC, 0x65, 0xCC, 0x63, /* 0xA0-0xA3 */
+	0xCC, 0x5C, 0xCC, 0x69, 0xCC, 0x6C, 0xCC, 0x67, /* 0xA4-0xA7 */
+	0xCC, 0x60, 0xA9, 0xA5, 0xCC, 0x66, 0xA9, 0xA6, /* 0xA8-0xAB */
+	0xCC, 0x61, 0xCC, 0x64, 0xCC, 0x5B, 0xCC, 0x5F, /* 0xAC-0xAF */
+	0xCC, 0x6B, 0xA9, 0xA7, 0x00, 0x00, 0xA9, 0xA8, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xCC, 0x5E, 0xCC, 0x6A, 0xA9, 0xA2, /* 0xB4-0xB7 */
+	0xA9, 0xA4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0xCE, 0xAB, 0xCE, 0xA4, /* 0xC4-0xC7 */
+	0xCE, 0xAA, 0xCE, 0xA3, 0xCE, 0xA5, 0xCE, 0x7D, /* 0xC8-0xCB */
+	0xCE, 0x7B, 0x00, 0x00, 0xCE, 0xAC, 0xCE, 0xA9, /* 0xCC-0xCF */
+	0xCE, 0x79, 0x00, 0x00, 0xAB, 0xD0, 0xCE, 0xA7, /* 0xD0-0xD3 */
+	0xCE, 0xA8, 0x00, 0x00, 0xCE, 0xA6, 0xCE, 0x7C, /* 0xD4-0xD7 */
+	0xCE, 0x7A, 0xAB, 0xCF, 0xCE, 0xA2, 0xCE, 0x7E, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0xCE, 0xA1, 0xCE, 0xAD, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xAE, 0x6F, 0x00, 0x00, 0xAE, 0x6E, 0x00, 0x00, /* 0xE8-0xEB */
+	0xD1, 0x6C, 0xAE, 0x6B, 0xD1, 0x6E, 0x00, 0x00, /* 0xEC-0xEF */
+	0xAE, 0x70, 0xD1, 0x6F, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xAE, 0x73, 0x00, 0x00, 0xAE, 0x71, 0xD1, 0x70, /* 0xF4-0xF7 */
+	0xCE, 0xAE, 0xD1, 0x72, 0x00, 0x00, 0xAE, 0x6D, /* 0xF8-0xFB */
+	0x00, 0x00, 0xAE, 0x6C, 0x00, 0x00, 0xD1, 0x6D, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_5D[512] = {
+	0xD1, 0x71, 0xAE, 0x72, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0xB1, 0x53, 0xB1, 0x52, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD4, 0xF5, /* 0x08-0x0B */
+	0xD4, 0xF9, 0xD4, 0xFB, 0xB1, 0x54, 0xD4, 0xFE, /* 0x0C-0x0F */
+	0x00, 0x00, 0xB1, 0x58, 0xD5, 0x41, 0x00, 0x00, /* 0x10-0x13 */
+	0xB1, 0x5A, 0x00, 0x00, 0xB1, 0x56, 0xB1, 0x5E, /* 0x14-0x17 */
+	0x00, 0x00, 0xB1, 0x5B, 0xD4, 0xF7, 0xB1, 0x55, /* 0x18-0x1B */
+	0x00, 0x00, 0xD4, 0xF6, 0xD4, 0xF4, 0xD5, 0x43, /* 0x1C-0x1F */
+	0xD4, 0xF8, 0x00, 0x00, 0xB1, 0x57, 0xD5, 0x42, /* 0x20-0x23 */
+	0xB1, 0x5C, 0xD4, 0xFD, 0xD4, 0xFC, 0xB1, 0x5D, /* 0x24-0x27 */
+	0xD4, 0xFA, 0xB1, 0x59, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0xD5, 0x44, 0x00, 0x00, /* 0x2C-0x2F */
+	0xD5, 0x40, 0xD8, 0xE7, 0xD8, 0xEE, 0xD8, 0xE3, /* 0x30-0x33 */
+	0xB4, 0x51, 0xD8, 0xDF, 0xD8, 0xEF, 0xD8, 0xD9, /* 0x34-0x37 */
+	0xD8, 0xEC, 0xD8, 0xEA, 0xD8, 0xE4, 0x00, 0x00, /* 0x38-0x3B */
+	0xD8, 0xED, 0xD8, 0xE6, 0x00, 0x00, 0xD8, 0xDE, /* 0x3C-0x3F */
+	0xD8, 0xF0, 0xD8, 0xDC, 0xD8, 0xE9, 0xD8, 0xDA, /* 0x40-0x43 */
+	0x00, 0x00, 0xD8, 0xF1, 0x00, 0x00, 0xB4, 0x52, /* 0x44-0x47 */
+	0x00, 0x00, 0xD8, 0xEB, 0xDD, 0x4F, 0xD8, 0xDD, /* 0x48-0x4B */
+	0xB4, 0x4F, 0x00, 0x00, 0xD8, 0xE1, 0x00, 0x00, /* 0x4C-0x4F */
+	0xB4, 0x50, 0xD8, 0xE0, 0xD8, 0xE5, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0xD8, 0xE2, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0xD8, 0xE8, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0xDD, 0x53, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0xDD, 0x56, 0xDD, 0x4E, /* 0x60-0x63 */
+	0x00, 0x00, 0xDD, 0x50, 0x00, 0x00, 0xDD, 0x55, /* 0x64-0x67 */
+	0xDD, 0x54, 0xB7, 0x43, 0x00, 0x00, 0xD8, 0xDB, /* 0x68-0x6B */
+	0xDD, 0x52, 0x00, 0x00, 0x00, 0x00, 0xB7, 0x44, /* 0x6C-0x6F */
+	0x00, 0x00, 0xDD, 0x4D, 0xDD, 0x51, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE1, 0xA9, /* 0x74-0x77 */
+	0x00, 0x00, 0xE1, 0xB0, 0xE1, 0xA7, 0x00, 0x00, /* 0x78-0x7B */
+	0xE1, 0xAE, 0xE1, 0xA5, 0xE1, 0xAD, 0xE1, 0xB1, /* 0x7C-0x7F */
+	
+	0xE1, 0xA4, 0xE1, 0xA8, 0xE1, 0xA3, 0x00, 0x00, /* 0x80-0x83 */
+	0xB9, 0xF1, 0x00, 0x00, 0xE1, 0xA6, 0xB9, 0xF2, /* 0x84-0x87 */
+	0xE1, 0xAC, 0xE1, 0xAB, 0xE1, 0xAA, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0xE1, 0xAF, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0x65, 0xE5, 0x67, /* 0x90-0x93 */
+	0xBC, 0x6B, 0xE5, 0x68, 0x00, 0x00, 0xE5, 0x63, /* 0x94-0x97 */
+	0x00, 0x00, 0xE5, 0x62, 0xE5, 0x6C, 0x00, 0x00, /* 0x98-0x9B */
+	0xE5, 0x6A, 0xBC, 0x6A, 0xE5, 0x6D, 0xE5, 0x64, /* 0x9C-0x9F */
+	0xE5, 0x69, 0xE5, 0x6B, 0xE5, 0x66, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE9, 0x61, /* 0xA4-0xA7 */
+	0xE9, 0x66, 0xE9, 0x60, 0xE9, 0x65, 0x00, 0x00, /* 0xA8-0xAB */
+	0xE9, 0x5E, 0xE9, 0x68, 0xE9, 0x64, 0xE9, 0x69, /* 0xAC-0xAF */
+	0xE9, 0x63, 0xE9, 0x5F, 0xE9, 0x67, 0x00, 0x00, /* 0xB0-0xB3 */
+	0xE9, 0x6A, 0xE9, 0x62, 0x00, 0x00, 0xEC, 0xDA, /* 0xB4-0xB7 */
+	0xC0, 0xAF, 0x00, 0x00, 0xC0, 0xAD, 0x00, 0x00, /* 0xB8-0xBB */
+	0xC0, 0xAC, 0xC0, 0xAE, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0xEF, 0xC4, 0x00, 0x00, 0xF1, 0x72, 0xF1, 0xFD, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0xF4, 0x44, 0xF4, 0x45, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xC4, 0x60, 0x00, 0x00, 0xF5, 0xC9, /* 0xC8-0xCB */
+	0x00, 0x00, 0xC4, 0xDE, 0x00, 0x00, 0xF5, 0xCA, /* 0xCC-0xCF */
+	0x00, 0x00, 0xF6, 0xDE, 0xC5, 0x72, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xC5, 0x71, 0xF6, 0xDD, 0xC5, 0xC9, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xF7, 0xD6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0xA4, 0x74, 0xA6, 0x7B, 0xC9, 0xDA, /* 0xDC-0xDF */
+	0xCA, 0xCA, 0xA8, 0xB5, 0xB1, 0x5F, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xA4, 0x75, 0xA5, 0xAA, 0xA5, 0xA9, /* 0xE4-0xE7 */
+	0xA5, 0xA8, 0x00, 0x00, 0x00, 0x00, 0xA7, 0xC5, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0xAE, 0x74, 0x00, 0x00, /* 0xEC-0xEF */
+	0xDD, 0x57, 0xA4, 0x76, 0xA4, 0x77, 0xA4, 0x78, /* 0xF0-0xF3 */
+	0xA4, 0xDA, 0x00, 0x00, 0x00, 0x00, 0xAB, 0xD1, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xCE, 0xAF, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0xB4, 0x53, 0xA4, 0x79, 0xC9, 0x5D, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_5E[512] = {
+	0x00, 0x00, 0x00, 0x00, 0xA5, 0xAB, 0xA5, 0xAC, /* 0x00-0x03 */
+	0xC9, 0x78, 0x00, 0x00, 0xA6, 0x7C, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xCA, 0xCB, 0x00, 0x00, /* 0x08-0x0B */
+	0xA7, 0xC6, 0x00, 0x00, 0xCA, 0xCC, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0xA9, 0xAE, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0xCC, 0x6E, 0xA9, 0xAC, 0xA9, 0xAB, 0xCC, 0x6D, /* 0x14-0x17 */
+	0xA9, 0xA9, 0xCC, 0x6F, 0xA9, 0xAA, 0xA9, 0xAD, /* 0x18-0x1B */
+	0x00, 0x00, 0xAB, 0xD2, 0x00, 0x00, 0xAB, 0xD4, /* 0x1C-0x1F */
+	0xCE, 0xB3, 0xCE, 0xB0, 0xCE, 0xB1, 0xCE, 0xB2, /* 0x20-0x23 */
+	0xCE, 0xB4, 0xAB, 0xD3, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0xD1, 0x74, 0xD1, 0x73, 0x00, 0x00, 0xAE, 0x76, /* 0x28-0x2B */
+	0x00, 0x00, 0xAE, 0x75, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB1, 0x62, /* 0x30-0x33 */
+	0xD5, 0x46, 0x00, 0x00, 0xB1, 0x61, 0xB1, 0x63, /* 0x34-0x37 */
+	0xB1, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0xB4, 0x55, 0xD5, 0x45, 0x00, 0x00, /* 0x3C-0x3F */
+	0xB4, 0x56, 0xD8, 0xF3, 0x00, 0x00, 0xB4, 0x57, /* 0x40-0x43 */
+	0xD8, 0xF2, 0xB4, 0x54, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0xDD, 0x5A, 0xDD, 0x5C, /* 0x48-0x4B */
+	0xB7, 0x45, 0xDD, 0x5B, 0xDD, 0x59, 0xDD, 0x58, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE1, 0xB4, /* 0x50-0x53 */
+	0xB9, 0xF7, 0xB9, 0xF5, 0x00, 0x00, 0xB9, 0xF6, /* 0x54-0x57 */
+	0xE1, 0xB2, 0xE1, 0xB3, 0x00, 0x00, 0xB9, 0xF3, /* 0x58-0x5B */
+	0xE5, 0x71, 0xE5, 0x6F, 0x00, 0x00, 0xBC, 0x6D, /* 0x5C-0x5F */
+	0xE5, 0x70, 0xBC, 0x6E, 0xBC, 0x6C, 0xB9, 0xF4, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0x6D, 0xE9, 0x6B, /* 0x64-0x67 */
+	0xE9, 0x6C, 0xE5, 0x6E, 0xEC, 0xDC, 0xC0, 0xB0, /* 0x68-0x6B */
+	0xEC, 0xDB, 0xEF, 0xC5, 0xEF, 0xC6, 0xE9, 0x6E, /* 0x6C-0x6F */
+	0xF1, 0xFE, 0x00, 0x00, 0xA4, 0x7A, 0xA5, 0xAD, /* 0x70-0x73 */
+	0xA6, 0x7E, 0xC9, 0xDB, 0xA6, 0x7D, 0x00, 0x00, /* 0x74-0x77 */
+	0xA9, 0xAF, 0xB7, 0x46, 0x00, 0x00, 0xA4, 0xDB, /* 0x78-0x7B */
+	0xA5, 0xAE, 0xAB, 0xD5, 0xB4, 0x58, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xC9, 0x79, 0x00, 0x00, 0xC9, 0x7A, 0x00, 0x00, /* 0x80-0x83 */
+	0xC9, 0xDC, 0x00, 0x00, 0x00, 0x00, 0xA7, 0xC8, /* 0x84-0x87 */
+	0xCA, 0xD0, 0xCA, 0xCE, 0xA7, 0xC9, 0xCA, 0xCD, /* 0x88-0x8B */
+	0xCA, 0xCF, 0xCA, 0xD1, 0x00, 0x00, 0xA7, 0xC7, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0xA9, 0xB3, 0xA9, 0xB4, 0xA9, 0xB1, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0xA9, 0xB0, 0xCE, 0xB8, /* 0x98-0x9B */
+	0xA9, 0xB2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0xAB, 0xD6, 0x00, 0x00, 0xCE, 0xB7, 0xCE, 0xB9, /* 0xA0-0xA3 */
+	0xCE, 0xB6, 0xCE, 0xBA, 0xAB, 0xD7, 0xAE, 0x79, /* 0xA4-0xA7 */
+	0xD1, 0x75, 0x00, 0x00, 0xD1, 0x77, 0xAE, 0x77, /* 0xA8-0xAB */
+	0xD1, 0x78, 0xAE, 0x78, 0xD1, 0x76, 0x00, 0x00, /* 0xAC-0xAF */
+	0xCE, 0xB5, 0xD5, 0x47, 0xD5, 0x4A, 0xD5, 0x4B, /* 0xB0-0xB3 */
+	0xD5, 0x48, 0xB1, 0x67, 0xB1, 0x66, 0xB1, 0x64, /* 0xB4-0xB7 */
+	0xB1, 0x65, 0xD5, 0x49, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0xB1, 0x68, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0xB4, 0x5A, 0xB4, 0x5B, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xB4, 0x5C, 0xDD, 0x5D, 0xDD, 0x5F, 0xDD, 0x61, /* 0xC4-0xC7 */
+	0xB7, 0x48, 0xB7, 0x47, 0xB4, 0x59, 0xDD, 0x60, /* 0xC8-0xCB */
+	0xDD, 0x5E, 0x00, 0x00, 0xE1, 0xB8, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0xE1, 0xB6, 0xE1, 0xBC, 0xB9, 0xF8, /* 0xD0-0xD3 */
+	0xE1, 0xBD, 0xE1, 0xBA, 0xB9, 0xF9, 0xE1, 0xB7, /* 0xD4-0xD7 */
+	0xE1, 0xB5, 0xE1, 0xBB, 0xBC, 0x70, 0xE5, 0x73, /* 0xD8-0xDB */
+	0xE1, 0xB9, 0xBC, 0x72, 0xE5, 0x74, 0xBC, 0x71, /* 0xDC-0xDF */
+	0xBC, 0x74, 0xE5, 0x75, 0xBC, 0x6F, 0xBC, 0x73, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xE9, 0x73, 0xE9, 0x71, 0xE9, 0x70, /* 0xE4-0xE7 */
+	0xE9, 0x72, 0xE9, 0x6F, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0xC3, 0x66, 0x00, 0x00, 0xF4, 0x46, 0xF4, 0x47, /* 0xEC-0xEF */
+	0x00, 0x00, 0xF5, 0xCB, 0xF6, 0xDF, 0xC6, 0x55, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0xA9, 0xB5, 0xA7, 0xCA, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0xAB, 0xD8, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0xA4, 0x7B, 0xA4, 0xDC, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_5F[512] = {
+	0x00, 0x00, 0xA5, 0xAF, 0xC9, 0xDD, 0x00, 0x00, /* 0x00-0x03 */
+	0xA7, 0xCB, 0xCA, 0xD2, 0x00, 0x00, 0xCE, 0xBB, /* 0x04-0x07 */
+	0xAB, 0xD9, 0x00, 0x00, 0xB9, 0xFA, 0xA4, 0x7C, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA6, 0xA1, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0xB7, 0x49, 0xA4, 0x7D, /* 0x10-0x13 */
+	0xA4, 0xDD, 0xA4, 0xDE, 0x00, 0x00, 0xA5, 0xB1, /* 0x14-0x17 */
+	0xA5, 0xB0, 0x00, 0x00, 0xC9, 0xDE, 0xA6, 0xA2, /* 0x18-0x1B */
+	0x00, 0x00, 0xCA, 0xD3, 0x00, 0x00, 0xA7, 0xCC, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0xCC, 0x71, 0xCC, 0x72, /* 0x20-0x23 */
+	0xCC, 0x73, 0x00, 0x00, 0xA9, 0xB6, 0xA9, 0xB7, /* 0x24-0x27 */
+	0xCC, 0x70, 0xA9, 0xB8, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0xAB, 0xDA, 0xCE, 0xBC, 0x00, 0x00, /* 0x2C-0x2F */
+	0xD1, 0x7A, 0xAE, 0x7A, 0x00, 0x00, 0xD1, 0x79, /* 0x30-0x33 */
+	0x00, 0x00, 0xB1, 0x69, 0xD5, 0x4C, 0xB1, 0x6A, /* 0x34-0x37 */
+	0xD5, 0x4D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0xB4, 0x5D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0xDD, 0x62, 0x00, 0x00, 0x00, 0x00, 0xE1, 0xBF, /* 0x40-0x43 */
+	0xE1, 0xBE, 0x00, 0x00, 0xB9, 0xFB, 0x00, 0x00, /* 0x44-0x47 */
+	0xBC, 0x75, 0xE5, 0x76, 0xBE, 0xCA, 0xE9, 0x74, /* 0x48-0x4B */
+	0xC0, 0xB1, 0x00, 0x00, 0xC5, 0x73, 0xF7, 0xD8, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0xCC, 0x74, 0x00, 0x00, 0xCE, 0xBD, 0xB1, 0x6B, /* 0x54-0x57 */
+	0xD8, 0xF4, 0xB7, 0x4A, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0xC2, 0x55, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0xA7, 0xCE, 0x00, 0x00, /* 0x60-0x63 */
+	0xA7, 0xCD, 0xAB, 0xDB, 0x00, 0x00, 0xD1, 0x7B, /* 0x64-0x67 */
+	0x00, 0x00, 0xB1, 0x6D, 0xB3, 0x43, 0xB1, 0x6E, /* 0x68-0x6B */
+	0xB1, 0x6C, 0xB4, 0x5E, 0x00, 0x00, 0xE1, 0xC0, /* 0x6C-0x6F */
+	0xB9, 0xFC, 0xBC, 0x76, 0x00, 0x00, 0xC9, 0x4C, /* 0x70-0x73 */
+	0xC9, 0xDF, 0x00, 0x00, 0xCA, 0xD5, 0xA7, 0xCF, /* 0x74-0x77 */
+	0xCA, 0xD4, 0xA7, 0xD0, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0xA9, 0xBC, 0xCC, 0x77, 0xCC, 0x76, 0xA9, 0xBB, /* 0x7C-0x7F */
+	
+	0xA9, 0xB9, 0xA9, 0xBA, 0xCC, 0x75, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0xAB, 0xDD, 0xCE, 0xBE, 0xAB, 0xE0, /* 0x84-0x87 */
+	0xAB, 0xDC, 0xAB, 0xE2, 0xAB, 0xDE, 0xAB, 0xDF, /* 0x88-0x8B */
+	0xAB, 0xE1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0xAE, 0x7D, 0xAE, 0x7C, 0xAE, 0x7B, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0xD5, 0x4F, 0xB1, 0x6F, /* 0x94-0x97 */
+	0xB1, 0x72, 0xB1, 0x70, 0x00, 0x00, 0xD5, 0x4E, /* 0x98-0x9B */
+	0xB1, 0x75, 0x00, 0x00, 0xB1, 0x71, 0xD5, 0x50, /* 0x9C-0x9F */
+	0xB1, 0x74, 0xB1, 0x73, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xD8, 0xF6, 0xD8, 0xF5, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xB4, 0x61, 0xB4, 0x5F, 0xB4, 0x60, 0xD8, 0xF7, /* 0xA8-0xAB */
+	0xB7, 0x4B, 0xDD, 0x64, 0xB7, 0x4C, 0xDD, 0x63, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0x77, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xBC, 0x78, 0xE1, 0xC1, 0xBC, 0x77, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xB9, 0xFD, 0x00, 0x00, 0xEC, 0xDE, /* 0xB8-0xBB */
+	0xE9, 0x75, 0xC0, 0xB2, 0xEC, 0xDD, 0xF2, 0x40, /* 0xBC-0xBF */
+	0xF4, 0x48, 0xF4, 0x49, 0x00, 0x00, 0xA4, 0xDF, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xA5, 0xB2, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xC9, 0x7B, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0xA7, 0xD2, 0xA7, 0xD4, 0x00, 0x00, 0xC9, 0xE2, /* 0xCC-0xCF */
+	0xCA, 0xD8, 0xCA, 0xD7, 0xCA, 0xD6, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xC9, 0xE1, 0xC9, 0xE0, 0xA6, 0xA4, 0xA7, 0xD3, /* 0xD4-0xD7 */
+	0xA7, 0xD1, 0xA6, 0xA3, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0xA9, 0xBD, 0xCC, 0x78, 0x00, 0x00, /* 0xDC-0xDF */
+	0xA9, 0xBE, 0xCA, 0xDD, 0x00, 0x00, 0xCA, 0xDF, /* 0xE0-0xE3 */
+	0xCA, 0xDE, 0xCC, 0x79, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xCA, 0xDA, 0x00, 0x00, 0xA7, 0xD8, 0xA7, 0xD6, /* 0xE8-0xEB */
+	0x00, 0x00, 0xCA, 0xD9, 0xCA, 0xDB, 0xCA, 0xE1, /* 0xEC-0xEF */
+	0x00, 0x00, 0xA7, 0xD5, 0x00, 0x00, 0xCA, 0xDC, /* 0xF0-0xF3 */
+	0xCA, 0xE5, 0xA9, 0xC0, 0x00, 0x00, 0xCA, 0xE2, /* 0xF4-0xF7 */
+	0xA7, 0xD7, 0x00, 0x00, 0xCA, 0xE0, 0xCA, 0xE3, /* 0xF8-0xFB */
+	0x00, 0x00, 0xA9, 0xBF, 0x00, 0x00, 0xA9, 0xC1, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_60[512] = {
+	0xCA, 0xE4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xCC, 0xAF, 0xCC, 0xA2, 0xCC, 0x7E, /* 0x08-0x0B */
+	0xCC, 0xAE, 0xCC, 0xA9, 0xAB, 0xE7, 0xA9, 0xC2, /* 0x0C-0x0F */
+	0xCC, 0xAA, 0xCC, 0xAD, 0xAB, 0xE3, 0xCC, 0xAC, /* 0x10-0x13 */
+	0xA9, 0xC3, 0xA9, 0xC8, 0xA9, 0xC6, 0xCC, 0xA3, /* 0x14-0x17 */
+	0x00, 0x00, 0xCC, 0x7C, 0xCC, 0xA5, 0xA9, 0xCD, /* 0x18-0x1B */
+	0xCC, 0xB0, 0xAB, 0xE4, 0xCC, 0xA6, 0x00, 0x00, /* 0x1C-0x1F */
+	0xAB, 0xE5, 0xA9, 0xC9, 0xCC, 0xA8, 0x00, 0x00, /* 0x20-0x23 */
+	0xCE, 0xCD, 0xAB, 0xE6, 0xCC, 0x7B, 0xA9, 0xCA, /* 0x24-0x27 */
+	0xAB, 0xE8, 0xA9, 0xCB, 0xA9, 0xC7, 0xA9, 0xCC, /* 0x28-0x2B */
+	0xCC, 0xA7, 0xCC, 0x7A, 0xCC, 0xAB, 0xA9, 0xC4, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0xCC, 0x7D, 0xCC, 0xA4, /* 0x30-0x33 */
+	0xCC, 0xA1, 0xA9, 0xC5, 0x00, 0x00, 0xCE, 0xBF, /* 0x34-0x37 */
+	0x00, 0x00, 0xCE, 0xC0, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0xCE, 0xCA, 0xD1, 0xA1, 0xCE, 0xCB, 0xAB, 0xEE, /* 0x40-0x43 */
+	0xCE, 0xCE, 0xCE, 0xC4, 0xAB, 0xED, 0xCE, 0xC6, /* 0x44-0x47 */
+	0x00, 0x00, 0xCE, 0xC7, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0xCE, 0xC9, 0xAB, 0xE9, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0xAE, 0xA3, 0x00, 0x00, 0xF9, 0xDA, 0xCE, 0xC5, /* 0x50-0x53 */
+	0xCE, 0xC1, 0xAE, 0xA4, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0xCE, 0xCF, 0xAE, 0x7E, 0xD1, 0x7D, 0xCE, 0xC8, /* 0x58-0x5B */
+	0x00, 0x00, 0xD1, 0x7C, 0xCE, 0xC3, 0xCE, 0xCC, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0xAB, 0xEC, 0xAE, 0xA1, /* 0x60-0x63 */
+	0xAB, 0xF2, 0xAE, 0xA2, 0xCE, 0xD0, 0xD1, 0x7E, /* 0x64-0x67 */
+	0xAB, 0xEB, 0xAE, 0xA6, 0xAB, 0xF1, 0xAB, 0xF0, /* 0x68-0x6B */
+	0xAB, 0xEF, 0xAE, 0xA5, 0xCE, 0xD1, 0xAE, 0xA7, /* 0x6C-0x6F */
+	0xAB, 0xEA, 0x00, 0x00, 0xCE, 0xC2, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB1, 0x76, /* 0x7C-0x7F */
+	
+	0xD1, 0xA4, 0xD1, 0xA6, 0x00, 0x00, 0xD1, 0xA8, /* 0x80-0x83 */
+	0xAE, 0xA8, 0xAE, 0xAE, 0xD5, 0x53, 0xD1, 0xAC, /* 0x84-0x87 */
+	0xD1, 0xA3, 0xB1, 0x78, 0xD5, 0x51, 0x00, 0x00, /* 0x88-0x8B */
+	0xAE, 0xAD, 0xAE, 0xAB, 0xD1, 0xAE, 0x00, 0x00, /* 0x8C-0x8F */
+	0xD5, 0x52, 0x00, 0x00, 0xD1, 0xA5, 0x00, 0x00, /* 0x90-0x93 */
+	0xAE, 0xAC, 0xD1, 0xA9, 0xAE, 0xAF, 0xD1, 0xAB, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0xAE, 0xAA, 0xD1, 0xAA, /* 0x98-0x9B */
+	0xD1, 0xAD, 0xD1, 0xA7, 0x00, 0x00, 0xAE, 0xA9, /* 0x9C-0x9F */
+	0xB1, 0x79, 0x00, 0x00, 0xD1, 0xA2, 0xB1, 0x77, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xB1, 0x7A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0xD5, 0x55, 0xD5, 0x5E, 0xB4, 0x64, 0x00, 0x00, /* 0xB0-0xB3 */
+	0xB1, 0x7C, 0xB1, 0xA3, 0xB4, 0x65, 0xD5, 0x60, /* 0xB4-0xB7 */
+	0xB1, 0xAA, 0xD8, 0xF9, 0xD5, 0x56, 0xB1, 0xA2, /* 0xB8-0xBB */
+	0xB1, 0xA5, 0xB1, 0x7E, 0xD5, 0x54, 0xD5, 0x62, /* 0xBC-0xBF */
+	0xD5, 0x65, 0xD9, 0x49, 0x00, 0x00, 0xD5, 0x63, /* 0xC0-0xC3 */
+	0xD8, 0xFD, 0xB1, 0xA1, 0xB1, 0xA8, 0xB1, 0xAC, /* 0xC4-0xC7 */
+	0xD5, 0x5D, 0xD8, 0xF8, 0xD5, 0x61, 0xB1, 0x7B, /* 0xC8-0xCB */
+	0xD8, 0xFA, 0xD5, 0x64, 0xD8, 0xFC, 0xD5, 0x59, /* 0xCC-0xCF */
+	0x00, 0x00, 0xB4, 0x62, 0x00, 0x00, 0xD5, 0x57, /* 0xD0-0xD3 */
+	0xD5, 0x58, 0xB1, 0xA7, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xB1, 0xA6, 0xD5, 0x5B, 0xB1, 0xAB, 0xD5, 0x5F, /* 0xD8-0xDB */
+	0xB1, 0xA4, 0xD5, 0x5C, 0x00, 0x00, 0xB1, 0xA9, /* 0xDC-0xDF */
+	0xB4, 0x66, 0xB4, 0x63, 0xD8, 0xFB, 0x00, 0x00, /* 0xE0-0xE3 */
+	0xD5, 0x5A, 0x00, 0x00, 0xB1, 0x7D, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0xB4, 0x6B, 0xB4, 0x6F, 0xD9, 0x40, 0xB7, 0x51, /* 0xF0-0xF3 */
+	0xB4, 0x6D, 0xD9, 0x44, 0xB4, 0x71, 0xDD, 0x65, /* 0xF4-0xF7 */
+	0xD9, 0x46, 0xB7, 0x53, 0xB4, 0x69, 0xB4, 0x6C, /* 0xF8-0xFB */
+	0xD9, 0x47, 0x00, 0x00, 0xD9, 0x48, 0xD9, 0x4E, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_61[512] = {
+	0xB4, 0x73, 0xB7, 0x54, 0x00, 0x00, 0xD9, 0x4A, /* 0x00-0x03 */
+	0xD9, 0x4F, 0xD9, 0x43, 0xB7, 0x5E, 0x00, 0x00, /* 0x04-0x07 */
+	0xB7, 0x55, 0xB4, 0x72, 0xD9, 0x41, 0xD9, 0x50, /* 0x08-0x0B */
+	0x00, 0x00, 0xB7, 0x5D, 0xB4, 0x70, 0xB7, 0x4E, /* 0x0C-0x0F */
+	0xD9, 0x4D, 0x00, 0x00, 0xB4, 0x74, 0xD9, 0x45, /* 0x10-0x13 */
+	0xD8, 0xFE, 0xB4, 0x6A, 0xD9, 0x42, 0x00, 0x00, /* 0x14-0x17 */
+	0xD9, 0x4B, 0x00, 0x00, 0xB7, 0x4D, 0xB7, 0x52, /* 0x18-0x1B */
+	0xB4, 0x67, 0xD9, 0x4C, 0x00, 0x00, 0xB7, 0x50, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB4, 0x68, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB7, 0x5C, /* 0x24-0x27 */
+	0xE1, 0xC3, 0xDD, 0x70, 0x00, 0x00, 0xDD, 0x68, /* 0x28-0x2B */
+	0xE1, 0xC2, 0x00, 0x00, 0xDD, 0x6C, 0xDD, 0x6E, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0xDD, 0x6B, 0x00, 0x00, /* 0x30-0x33 */
+	0xB7, 0x5B, 0x00, 0x00, 0xDD, 0x6A, 0xB7, 0x5F, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE1, 0xD2, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0xB7, 0x5A, 0xBA, 0x40, /* 0x3C-0x3F */
+	0xDD, 0x71, 0xE1, 0xC4, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0xB7, 0x58, 0xDD, 0x69, 0xDD, 0x6D, 0xB9, 0xFE, /* 0x44-0x47 */
+	0xB7, 0x4F, 0xDD, 0x66, 0xDD, 0x67, 0xBA, 0x41, /* 0x48-0x4B */
+	0xB7, 0x57, 0xB7, 0x59, 0xB7, 0x56, 0xDD, 0x6F, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xC8, 0xE1, 0xC9, /* 0x50-0x53 */
+	0xE1, 0xCE, 0xBC, 0x7D, 0xE1, 0xD5, 0x00, 0x00, /* 0x54-0x57 */
+	0xBA, 0x47, 0x00, 0x00, 0xBA, 0x46, 0xE1, 0xD0, /* 0x58-0x5B */
+	0x00, 0x00, 0xBC, 0x7C, 0xE1, 0xC5, 0xBA, 0x45, /* 0x5C-0x5F */
+	0x00, 0x00, 0xE1, 0xD4, 0xBA, 0x43, 0xBA, 0x44, /* 0x60-0x63 */
+	0x00, 0x00, 0xE1, 0xD1, 0xE5, 0xAA, 0xBC, 0x7A, /* 0x64-0x67 */
+	0xB4, 0x6E, 0x00, 0x00, 0xE1, 0xD3, 0xBC, 0xA3, /* 0x68-0x6B */
+	0xE1, 0xCB, 0x00, 0x00, 0xBC, 0x7B, 0x00, 0x00, /* 0x6C-0x6F */
+	0xBC, 0xA2, 0xE1, 0xC6, 0xE1, 0xCA, 0xE1, 0xC7, /* 0x70-0x73 */
+	0xE1, 0xCD, 0xBA, 0x48, 0xBC, 0x79, 0xBA, 0x42, /* 0x74-0x77 */
+	0x00, 0x00, 0xE5, 0x7A, 0xE1, 0xCF, 0x00, 0x00, /* 0x78-0x7B */
+	0xBC, 0xA1, 0x00, 0x00, 0xBC, 0xA4, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xE1, 0xCC, 0x00, 0x00, 0xBC, 0x7E, 0xE5, 0x79, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0xE5, 0x7E, 0xBE, 0xCE, 0xE5, 0x78, /* 0x88-0x8B */
+	0xE9, 0xA3, 0xE5, 0xA9, 0xBC, 0xA8, 0x00, 0x00, /* 0x8C-0x8F */
+	0xBC, 0xA6, 0xBE, 0xCC, 0xE5, 0xA6, 0xE5, 0xA2, /* 0x90-0x93 */
+	0xBC, 0xAC, 0x00, 0x00, 0xE9, 0x78, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0xBC, 0xAA, 0xE5, 0xA1, /* 0x98-0x9B */
+	0x00, 0x00, 0xE9, 0x76, 0x00, 0x00, 0xE5, 0xA5, /* 0x9C-0x9F */
+	0x00, 0x00, 0xE5, 0xA8, 0xE5, 0x7D, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xBC, 0xAB, 0x00, 0x00, 0x00, 0x00, 0xBC, 0xA5, /* 0xA4-0xA7 */
+	0xE9, 0x77, 0xBE, 0xCD, 0xE5, 0xA7, 0xBC, 0xA7, /* 0xA8-0xAB */
+	0xBC, 0xA9, 0xE5, 0xA4, 0xBC, 0xAD, 0xE5, 0xA3, /* 0xAC-0xAF */
+	0xE5, 0x7C, 0xE5, 0x7B, 0xBE, 0xCB, 0xE5, 0xAB, /* 0xB0-0xB3 */
+	0xE9, 0x7A, 0xEC, 0xE0, 0xBE, 0xD0, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xE9, 0xA2, 0x00, 0x00, 0xE9, 0x7E, 0x00, 0x00, /* 0xB8-0xBB */
+	0xEC, 0xE1, 0x00, 0x00, 0xBE, 0xD1, 0xE9, 0xA1, /* 0xBC-0xBF */
+	0x00, 0x00, 0xE9, 0x7C, 0xC0, 0xB4, 0xEC, 0xDF, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xE9, 0x79, 0xE9, 0x7B, 0xC0, 0xB5, /* 0xC4-0xC7 */
+	0xBE, 0xD3, 0xC0, 0xB3, 0xBE, 0xD2, 0xC0, 0xB7, /* 0xC8-0xCB */
+	0xE9, 0x7D, 0xBE, 0xCF, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0xEF, 0xCF, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xEF, 0xC7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0xEC, 0xE7, 0xEF, 0xC8, /* 0xDC-0xDF */
+	0xEC, 0xE3, 0x00, 0x00, 0x00, 0x00, 0xC2, 0x56, /* 0xE0-0xE3 */
+	0xEC, 0xE5, 0xEC, 0xE4, 0xC0, 0xB6, 0xEC, 0xE2, /* 0xE4-0xE7 */
+	0xEC, 0xE6, 0xEF, 0xD0, 0xEF, 0xCC, 0xEF, 0xCE, /* 0xE8-0xEB */
+	0x00, 0x00, 0xEF, 0xC9, 0xEF, 0xCA, 0x00, 0x00, /* 0xEC-0xEF */
+	0xEF, 0xCD, 0xEF, 0xCB, 0xC3, 0x67, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0xC3, 0x6A, 0xC3, 0x69, 0xC3, 0x68, /* 0xF4-0xF7 */
+	0xC4, 0x61, 0xF4, 0x4A, 0xC4, 0x62, 0xF2, 0x41, /* 0xF8-0xFB */
+	0xC4, 0xDF, 0xF5, 0xCC, 0xC4, 0xE0, 0xC5, 0x74, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_62[512] = {
+	0xC5, 0xCA, 0xF7, 0xD9, 0x00, 0x00, 0xF7, 0xDA, /* 0x00-0x03 */
+	0xF7, 0xDB, 0x00, 0x00, 0x00, 0x00, 0xF9, 0xBA, /* 0x04-0x07 */
+	0xA4, 0xE0, 0xC9, 0x7C, 0xA5, 0xB3, 0x00, 0x00, /* 0x08-0x0B */
+	0xA6, 0xA6, 0xA6, 0xA7, 0xA6, 0xA5, 0x00, 0x00, /* 0x0C-0x0F */
+	0xA6, 0xA8, 0xA7, 0xDA, 0xA7, 0xD9, 0x00, 0x00, /* 0x10-0x13 */
+	0xCC, 0xB1, 0xA9, 0xCF, 0xA9, 0xCE, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0xD1, 0xAF, 0xB1, 0xAD, 0xB1, 0xAE, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB4, 0x75, /* 0x1C-0x1F */
+	0xDD, 0x72, 0xB7, 0x60, 0xB7, 0x61, 0xDD, 0x74, /* 0x20-0x23 */
+	0xDD, 0x76, 0xDD, 0x75, 0x00, 0x00, 0xE1, 0xD7, /* 0x24-0x27 */
+	0x00, 0x00, 0xE1, 0xD6, 0xBA, 0x49, 0xE1, 0xD8, /* 0x28-0x2B */
+	0x00, 0x00, 0xE5, 0xAC, 0xBC, 0xAE, 0x00, 0x00, /* 0x2C-0x2F */
+	0xBE, 0xD4, 0x00, 0x00, 0xC0, 0xB8, 0xC2, 0x57, /* 0x30-0x33 */
+	0xC0, 0xB9, 0x00, 0x00, 0xA4, 0xE1, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xCA, 0xE6, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0xCC, 0xB2, 0xA9, 0xD1, 0xA9, 0xD0, /* 0x3C-0x3F */
+	0xA9, 0xD2, 0xAB, 0xF3, 0xCE, 0xD2, 0xCE, 0xD3, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xD1, 0xB0, 0xAE, 0xB0, /* 0x44-0x47 */
+	0xB1, 0xAF, 0xB4, 0x76, 0xD9, 0x51, 0xA4, 0xE2, /* 0x48-0x4B */
+	0x00, 0x00, 0xA4, 0x7E, 0xA4, 0xE3, 0x00, 0x00, /* 0x4C-0x4F */
+	0xC9, 0x7D, 0xA5, 0xB7, 0xA5, 0xB6, 0xA5, 0xB4, /* 0x50-0x53 */
+	0xA5, 0xB5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0xA6, 0xAB, 0xC9, 0xE9, 0xC9, 0xEB, 0xA6, 0xAA, /* 0x58-0x5B */
+	0xC9, 0xE3, 0x00, 0x00, 0xC9, 0xE4, 0x00, 0x00, /* 0x5C-0x5F */
+	0xC9, 0xEA, 0xC9, 0xE6, 0xC9, 0xE8, 0xA6, 0xA9, /* 0x60-0x63 */
+	0xC9, 0xE5, 0xC9, 0xEC, 0xC9, 0xE7, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0xA7, 0xE1, 0xA7, 0xEA, 0xA7, 0xE8, /* 0x6C-0x6F */
+	0xCA, 0xF0, 0xCA, 0xED, 0xCA, 0xF5, 0xA7, 0xE6, /* 0x70-0x73 */
+	0xCA, 0xF6, 0x00, 0x00, 0xA7, 0xDF, 0xCA, 0xF3, /* 0x74-0x77 */
+	0x00, 0x00, 0xA7, 0xE5, 0xCA, 0xEF, 0xCA, 0xEE, /* 0x78-0x7B */
+	0xA7, 0xE3, 0xCA, 0xF4, 0xA7, 0xE4, 0xA9, 0xD3, /* 0x7C-0x7F */
+	
+	0xA7, 0xDE, 0xCA, 0xF1, 0x00, 0x00, 0xCA, 0xE7, /* 0x80-0x83 */
+	0xA7, 0xDB, 0x00, 0x00, 0xA7, 0xEE, 0xCA, 0xEC, /* 0x84-0x87 */
+	0xCA, 0xF2, 0xA7, 0xE0, 0xA7, 0xE2, 0x00, 0x00, /* 0x88-0x8B */
+	0xCA, 0xE8, 0x00, 0x00, 0xCA, 0xE9, 0xCA, 0xEA, /* 0x8C-0x8F */
+	0x00, 0x00, 0xA7, 0xED, 0xA7, 0xE7, 0xA7, 0xEC, /* 0x90-0x93 */
+	0xCA, 0xEB, 0xA7, 0xEB, 0xA7, 0xDD, 0xA7, 0xDC, /* 0x94-0x97 */
+	0xA7, 0xE9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xA9, 0xE1, 0xCC, 0xBE, 0xCC, 0xB7, 0xA9, 0xDC, /* 0xA8-0xAB */
+	0xA9, 0xEF, 0xCC, 0xB3, 0xCC, 0xBA, 0xCC, 0xBC, /* 0xAC-0xAF */
+	0xCC, 0xBF, 0xA9, 0xEA, 0x00, 0x00, 0xCC, 0xBB, /* 0xB0-0xB3 */
+	0xCC, 0xB4, 0xA9, 0xE8, 0xCC, 0xB8, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xCC, 0xC0, 0xA9, 0xD9, 0x00, 0x00, 0xCC, 0xBD, /* 0xB8-0xBB */
+	0xA9, 0xE3, 0xA9, 0xE2, 0xCC, 0xB6, 0xA9, 0xD7, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0xA9, 0xD8, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xA9, 0xD6, 0x00, 0x00, 0xA9, 0xEE, 0xA9, 0xE6, /* 0xC4-0xC7 */
+	0xA9, 0xE0, 0xA9, 0xD4, 0xCC, 0xB9, 0xA9, 0xDF, /* 0xC8-0xCB */
+	0xA9, 0xD5, 0xA9, 0xE7, 0xA9, 0xF0, 0xCE, 0xD4, /* 0xCC-0xCF */
+	0xA9, 0xE4, 0xCC, 0xB5, 0xA9, 0xDA, 0xA9, 0xDD, /* 0xD0-0xD3 */
+	0xA9, 0xDE, 0x00, 0x00, 0xA9, 0xEC, 0xA9, 0xED, /* 0xD4-0xD7 */
+	0xA9, 0xEB, 0xA9, 0xE5, 0xA9, 0xE9, 0xA9, 0xDB, /* 0xD8-0xDB */
+	0xAB, 0xF4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCE, 0xDA, /* 0xE8-0xEB */
+	0xAC, 0x41, 0xAB, 0xF8, 0xAB, 0xFA, 0xAC, 0x40, /* 0xEC-0xEF */
+	0xCE, 0xE6, 0xAB, 0xFD, 0xD1, 0xB1, 0xAE, 0xB1, /* 0xF0-0xF3 */
+	0xAC, 0x43, 0xCE, 0xD7, 0xCE, 0xDF, 0xAB, 0xFE, /* 0xF4-0xF7 */
+	0xCE, 0xDE, 0xCE, 0xDB, 0xCE, 0xE3, 0xCE, 0xE5, /* 0xF8-0xFB */
+	0xAB, 0xF7, 0xAB, 0xFB, 0xAC, 0x42, 0xAE, 0xB3, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_63[512] = {
+	0xCE, 0xE0, 0xAB, 0xF9, 0xAC, 0x45, 0xCE, 0xD9, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xAB, 0xFC, /* 0x04-0x07 */
+	0xAE, 0xB2, 0xAB, 0xF6, 0x00, 0x00, 0xCE, 0xD6, /* 0x08-0x0B */
+	0xCE, 0xDD, 0xCE, 0xD5, 0xCE, 0xD8, 0xCE, 0xDC, /* 0x0C-0x0F */
+	0xD1, 0xB2, 0xAC, 0x44, 0x00, 0x00, 0xCE, 0xE1, /* 0x10-0x13 */
+	0xCE, 0xE2, 0xCE, 0xE4, 0xAB, 0xF5, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0xAE, 0xC1, 0xD1, 0xBE, 0xAE, 0xBF, 0xAE, 0xC0, /* 0x28-0x2B */
+	0xD1, 0xB4, 0xD1, 0xC4, 0x00, 0x00, 0xAE, 0xB6, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0xD5, 0x66, 0xD1, 0xC6, /* 0x30-0x33 */
+	0xD1, 0xC0, 0x00, 0x00, 0xD1, 0xB7, 0x00, 0x00, /* 0x34-0x37 */
+	0xD1, 0xC9, 0xD1, 0xBA, 0xAE, 0xBC, 0xD5, 0x7D, /* 0x38-0x3B */
+	0xD1, 0xBD, 0xAE, 0xBE, 0xAE, 0xB5, 0x00, 0x00, /* 0x3C-0x3F */
+	0xD1, 0xCB, 0xD1, 0xBF, 0xAE, 0xB8, 0xD1, 0xB8, /* 0x40-0x43 */
+	0xD1, 0xB5, 0xD1, 0xB6, 0xAE, 0xB9, 0xD1, 0xC5, /* 0x44-0x47 */
+	0xD1, 0xCC, 0xAE, 0xBB, 0xD1, 0xBC, 0xD1, 0xBB, /* 0x48-0x4B */
+	0xAE, 0xC3, 0xAE, 0xC2, 0xAE, 0xB4, 0xAE, 0xBA, /* 0x4C-0x4F */
+	0xAE, 0xBD, 0xD1, 0xC8, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0xD1, 0xC2, 0xAE, 0xB7, 0xD1, 0xB3, 0xD1, 0xCA, /* 0x54-0x57 */
+	0xD1, 0xC1, 0xD1, 0xC3, 0xD1, 0xC7, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0xD5, 0x67, 0x00, 0x00, 0xB1, 0xB7, /* 0x64-0x67 */
+	0xB1, 0xCB, 0xB1, 0xCA, 0x00, 0x00, 0xB1, 0xBF, /* 0x68-0x6B */
+	0x00, 0x00, 0xD5, 0x79, 0xD5, 0x75, 0xD5, 0x72, /* 0x6C-0x6F */
+	0xD5, 0xA6, 0xB1, 0xBA, 0xB1, 0xB2, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0xD5, 0x77, 0xB4, 0xA8, 0xB1, 0xB6, /* 0x74-0x77 */
+	0xD5, 0xA1, 0x00, 0x00, 0xB1, 0xCC, 0xB1, 0xC9, /* 0x78-0x7B */
+	0xD5, 0x7B, 0xD5, 0x6A, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xB1, 0xC8, 0xD5, 0xA3, 0xD5, 0x69, 0xB1, 0xBD, /* 0x80-0x83 */
+	0xB1, 0xC1, 0xD5, 0xA2, 0x00, 0x00, 0xD5, 0x73, /* 0x84-0x87 */
+	0xB1, 0xC2, 0xB1, 0xBC, 0xD5, 0x68, 0x00, 0x00, /* 0x88-0x8B */
+	0xB4, 0x78, 0xD5, 0xA5, 0xD5, 0x71, 0xB1, 0xC7, /* 0x8C-0x8F */
+	0xD5, 0x74, 0xD5, 0xA4, 0xB1, 0xC6, 0x00, 0x00, /* 0x90-0x93 */
+	0xD9, 0x52, 0x00, 0x00, 0xB1, 0xB3, 0xD5, 0x6F, /* 0x94-0x97 */
+	0xB1, 0xB8, 0xB1, 0xC3, 0x00, 0x00, 0xB1, 0xBE, /* 0x98-0x9B */
+	0xD5, 0x78, 0xD5, 0x6E, 0xD5, 0x6C, 0xD5, 0x7E, /* 0x9C-0x9F */
+	0xB1, 0xB0, 0xB1, 0xC4, 0xB1, 0xB4, 0xB4, 0x77, /* 0xA0-0xA3 */
+	0xD5, 0x7C, 0xB1, 0xB5, 0x00, 0x00, 0xB1, 0xB1, /* 0xA4-0xA7 */
+	0xB1, 0xC0, 0xB1, 0xBB, 0xB1, 0xB9, 0xD5, 0x70, /* 0xA8-0xAB */
+	0xB1, 0xC5, 0xD5, 0x6D, 0xD5, 0x7A, 0xD5, 0x76, /* 0xAC-0xAF */
+	0xD9, 0x54, 0xD9, 0x53, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0xD5, 0x6B, 0xD9, 0x64, 0x00, 0x00, /* 0xBC-0xBF */
+	0xB4, 0x7A, 0x00, 0x00, 0xD9, 0x6A, 0xD9, 0x59, /* 0xC0-0xC3 */
+	0xD9, 0x67, 0xDD, 0x77, 0xB4, 0x7D, 0xD9, 0x6B, /* 0xC4-0xC7 */
+	0xD9, 0x6E, 0xB4, 0x7C, 0xD9, 0x5C, 0xD9, 0x6D, /* 0xC8-0xCB */
+	0xD9, 0x6C, 0xB4, 0x7E, 0xD9, 0x55, 0xB4, 0x79, /* 0xCC-0xCF */
+	0xB4, 0xA3, 0x00, 0x00, 0xB4, 0xA1, 0xD9, 0x69, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xD9, 0x5F, 0xB4, 0xA5, 0xD9, 0x70, /* 0xD4-0xD7 */
+	0xD9, 0x68, 0xD9, 0x71, 0xB4, 0xAD, 0xB4, 0xAB, /* 0xD8-0xDB */
+	0xD9, 0x66, 0xD9, 0x65, 0x00, 0x00, 0xD9, 0x63, /* 0xDC-0xDF */
+	0xD9, 0x5D, 0xB4, 0xA4, 0x00, 0x00, 0xB4, 0xA2, /* 0xE0-0xE3 */
+	0xD1, 0xB9, 0xD9, 0x56, 0x00, 0x00, 0xDD, 0xB7, /* 0xE4-0xE7 */
+	0xD9, 0x57, 0xB4, 0x7B, 0xB4, 0xAA, 0xDD, 0x79, /* 0xE8-0xEB */
+	0x00, 0x00, 0xB4, 0xA6, 0xB4, 0xA7, 0xD9, 0x58, /* 0xEC-0xEF */
+	0xD9, 0x6F, 0xDD, 0x78, 0xD9, 0x60, 0xD9, 0x5B, /* 0xF0-0xF3 */
+	0xB4, 0xA9, 0xD9, 0x61, 0xD9, 0x5E, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xB4, 0xAE, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_64[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0xB7, 0x70, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xDD, 0x7C, 0xDD, 0xB1, 0xDD, 0xB6, /* 0x08-0x0B */
+	0xDD, 0xAA, 0xB7, 0x6C, 0xDD, 0xBB, 0xB7, 0x69, /* 0x0C-0x0F */
+	0xDD, 0x7A, 0x00, 0x00, 0xDD, 0x7B, 0xB7, 0x62, /* 0x10-0x13 */
+	0xB7, 0x6B, 0xDD, 0xA4, 0xB7, 0x6E, 0xB7, 0x6F, /* 0x14-0x17 */
+	0xDD, 0xA5, 0x00, 0x00, 0xDD, 0xB2, 0xDD, 0xB8, /* 0x18-0x1B */
+	0xB7, 0x6A, 0x00, 0x00, 0xB7, 0x64, 0xDD, 0xA3, /* 0x1C-0x1F */
+	0xDD, 0x7D, 0xDD, 0xBA, 0xDD, 0xA8, 0xDD, 0xA9, /* 0x20-0x23 */
+	0xDD, 0x7E, 0xDD, 0xB4, 0xDD, 0xAB, 0xDD, 0xB5, /* 0x24-0x27 */
+	0xDD, 0xAD, 0x00, 0x00, 0xB7, 0x65, 0xE1, 0xD9, /* 0x28-0x2B */
+	0xB7, 0x68, 0xB7, 0x66, 0xDD, 0xB9, 0xDD, 0xB0, /* 0x2C-0x2F */
+	0xDD, 0xAC, 0x00, 0x00, 0x00, 0x00, 0xDD, 0xA1, /* 0x30-0x33 */
+	0xBA, 0x53, 0xDD, 0xAF, 0xB7, 0x6D, 0xDD, 0xA7, /* 0x34-0x37 */
+	0x00, 0x00, 0xDD, 0xA6, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0xB7, 0x67, 0xB7, 0x63, 0xE1, 0xEE, /* 0x3C-0x3F */
+	0xDD, 0xB3, 0xDD, 0xAE, 0x00, 0x00, 0xDD, 0xA2, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE1, 0xE9, /* 0x48-0x4B */
+	0x00, 0x00, 0xE1, 0xDA, 0xE1, 0xE5, 0x00, 0x00, /* 0x4C-0x4F */
+	0xE1, 0xEC, 0xBA, 0x51, 0xB4, 0xAC, 0xE1, 0xEA, /* 0x50-0x53 */
+	0xBA, 0x4C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0xBA, 0x4B, 0xE1, 0xF1, 0x00, 0x00, 0xE1, 0xDB, /* 0x58-0x5B */
+	0xE1, 0xE8, 0xE1, 0xDC, 0xE1, 0xE7, 0xBA, 0x4F, /* 0x5C-0x5F */
+	0xE1, 0xEB, 0xD9, 0x62, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0xE1, 0xF2, 0xE1, 0xE3, 0xBA, 0x52, /* 0x64-0x67 */
+	0xE5, 0xBA, 0xBC, 0xAF, 0x00, 0x00, 0xE1, 0xF0, /* 0x68-0x6B */
+	0xE1, 0xEF, 0xBA, 0x54, 0xE5, 0xAD, 0xBC, 0xB0, /* 0x6C-0x6F */
+	0xE5, 0xAE, 0x00, 0x00, 0xE1, 0xDF, 0xE1, 0xE0, /* 0x70-0x73 */
+	0xE1, 0xDD, 0xE1, 0xE2, 0xE1, 0xDE, 0xE1, 0xF3, /* 0x74-0x77 */
+	0xBA, 0x4E, 0xBC, 0xB1, 0xBA, 0x50, 0xBA, 0x55, /* 0x78-0x7B */
+	0x00, 0x00, 0xE1, 0xE1, 0x00, 0x00, 0xE1, 0xED, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0xE1, 0xE6, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0xE5, 0xB1, 0x00, 0x00, 0xBA, 0x4A, /* 0x84-0x87 */
+	0xBC, 0xB4, 0xE9, 0xAA, 0xE5, 0xB6, 0xE5, 0xB5, /* 0x88-0x8B */
+	0xE5, 0xB7, 0x00, 0x00, 0x00, 0x00, 0xE5, 0xB4, /* 0x8C-0x8F */
+	0xBC, 0xB5, 0x00, 0x00, 0xBC, 0xBB, 0xBC, 0xB8, /* 0x90-0x93 */
+	0x00, 0x00, 0xBC, 0xB9, 0xE5, 0xAF, 0xE5, 0xB2, /* 0x94-0x97 */
+	0xE5, 0xBC, 0xBC, 0xC1, 0xBC, 0xBF, 0x00, 0x00, /* 0x98-0x9B */
+	0xE5, 0xB3, 0xD9, 0x5A, 0xBC, 0xB2, 0xE5, 0xB9, /* 0x9C-0x9F */
+	0xE5, 0xB0, 0x00, 0x00, 0xBC, 0xC2, 0xE5, 0xB8, /* 0xA0-0xA3 */
+	0xBA, 0x4D, 0xBC, 0xB7, 0xE1, 0xE4, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0xBC, 0xBA, 0x00, 0x00, 0xBC, 0xBE, /* 0xA8-0xAB */
+	0xBC, 0xC0, 0xBC, 0xBD, 0xBC, 0xBC, 0x00, 0x00, /* 0xAC-0xAF */
+	0xBC, 0xB6, 0xE5, 0xBB, 0xBC, 0xB3, 0xBC, 0xC3, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xBE, 0xD8, /* 0xB8-0xBB */
+	0xBE, 0xD9, 0xE9, 0xA9, 0xBE, 0xE2, 0xBE, 0xDF, /* 0xBC-0xBF */
+	0x00, 0x00, 0xBE, 0xD6, 0xBE, 0xDD, 0xE9, 0xAB, /* 0xC0-0xC3 */
+	0xBE, 0xDB, 0xBE, 0xD5, 0x00, 0x00, 0xBE, 0xDC, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xE9, 0xA8, 0xC0, 0xBB, 0xBE, 0xD7, /* 0xC8-0xCB */
+	0x00, 0x00, 0xBE, 0xDE, 0xC0, 0xBA, 0xE9, 0xA7, /* 0xCC-0xCF */
+	0xE9, 0xA6, 0x00, 0x00, 0xBE, 0xE0, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xBE, 0xE1, 0x00, 0x00, 0xE9, 0xA5, 0xE9, 0xA4, /* 0xD4-0xD7 */
+	0xC0, 0xBC, 0xE9, 0xAE, 0xBE, 0xDA, 0xE9, 0xAC, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0xC0, 0xBD, 0x00, 0x00, 0xC0, 0xC2, 0xEC, 0xEA, /* 0xE0-0xE3 */
+	0xEC, 0xEC, 0x00, 0x00, 0xC0, 0xBF, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xEC, 0xED, 0xEC, 0xE9, 0x00, 0x00, 0xEC, 0xEB, /* 0xE8-0xEB */
+	0xC0, 0xC0, 0xC0, 0xC3, 0x00, 0x00, 0xEC, 0xE8, /* 0xEC-0xEF */
+	0xC0, 0xBE, 0xC0, 0xC1, 0xC2, 0x59, 0xE9, 0xAD, /* 0xF0-0xF3 */
+	0xC2, 0x58, 0x00, 0x00, 0x00, 0x00, 0xC2, 0x5E, /* 0xF4-0xF7 */
+	0xEF, 0xD4, 0x00, 0x00, 0xC2, 0x5C, 0xC2, 0x5D, /* 0xF8-0xFB */
+	0xEF, 0xD7, 0xEF, 0xD3, 0xC2, 0x5A, 0xEF, 0xD1, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_65[512] = {
+	0xC3, 0x6B, 0xEF, 0xD5, 0x00, 0x00, 0xEF, 0xD6, /* 0x00-0x03 */
+	0xEF, 0xD2, 0x00, 0x00, 0xC2, 0x5B, 0xF2, 0x42, /* 0x04-0x07 */
+	0x00, 0x00, 0xF2, 0x45, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0xF2, 0x46, 0xF2, 0x44, 0xF2, 0x47, 0xC3, 0x6C, /* 0x0C-0x0F */
+	0xF2, 0x43, 0x00, 0x00, 0x00, 0x00, 0xF4, 0x4E, /* 0x10-0x13 */
+	0xC4, 0x64, 0xF4, 0x4D, 0xF4, 0x4C, 0xF4, 0x4B, /* 0x14-0x17 */
+	0xC4, 0x63, 0xC4, 0x65, 0x00, 0x00, 0xF5, 0xCD, /* 0x18-0x1B */
+	0xC4, 0xE2, 0xC4, 0xE1, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0xF6, 0xE1, 0xF6, 0xE0, 0xF6, 0xE3, 0xC5, 0xCB, /* 0x20-0x23 */
+	0xC5, 0x75, 0xF7, 0xDD, 0xF6, 0xE2, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0xF7, 0xDC, 0xC5, 0xCD, 0xC5, 0xCC, /* 0x28-0x2B */
+	0xC5, 0xF3, 0xF8, 0xA9, 0xF8, 0xEF, 0xA4, 0xE4, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0xD9, 0x72, 0xE9, 0xAF, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0xA6, 0xAC, 0xCA, 0xF7, /* 0x34-0x37 */
+	0xA7, 0xF1, 0xA7, 0xEF, 0x00, 0x00, 0xA7, 0xF0, /* 0x38-0x3B */
+	0x00, 0x00, 0xCC, 0xC1, 0xA9, 0xF1, 0xAC, 0x46, /* 0x3C-0x3F */
+	0x00, 0x00, 0xCE, 0xE7, 0x00, 0x00, 0xCE, 0xE8, /* 0x40-0x43 */
+	0x00, 0x00, 0xAC, 0x47, 0xD1, 0xCE, 0x00, 0x00, /* 0x44-0x47 */
+	0xAE, 0xC4, 0xAE, 0xC5, 0xD1, 0xCD, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB1, 0xD3, /* 0x4C-0x4F */
+	0x00, 0x00, 0xB1, 0xCF, 0x00, 0x00, 0xD5, 0xA7, /* 0x50-0x53 */
+	0xB1, 0xD6, 0xB1, 0xD5, 0xB1, 0xCE, 0xB1, 0xD1, /* 0x54-0x57 */
+	0xB1, 0xD4, 0xB1, 0xD0, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0xD9, 0x76, 0xB1, 0xCD, 0xB4, 0xAF, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0xB4, 0xB1, 0xB4, 0xB2, /* 0x60-0x63 */
+	0xD9, 0x75, 0xD9, 0x78, 0xB4, 0xB0, 0xD9, 0x73, /* 0x64-0x67 */
+	0xD9, 0x77, 0x00, 0x00, 0xD9, 0x74, 0x00, 0x00, /* 0x68-0x6B */
+	0xB7, 0x71, 0x00, 0x00, 0x00, 0x00, 0xDD, 0xBC, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0xBA, 0x56, 0xE1, 0xF4, /* 0x70-0x73 */
+	0xBE, 0xE3, 0xBC, 0xC4, 0xE5, 0xBD, 0xBC, 0xC5, /* 0x74-0x77 */
+	0xBC, 0xC6, 0xE5, 0xBF, 0xE5, 0xBE, 0xE5, 0xC0, /* 0x78-0x7B */
+	0xE9, 0xB1, 0x00, 0x00, 0x00, 0x00, 0xE9, 0xB0, /* 0x7C-0x7F */
+	
+	0xEC, 0xEF, 0xEC, 0xEE, 0xC0, 0xC4, 0xC0, 0xC5, /* 0x80-0x83 */
+	0xF2, 0x48, 0x00, 0x00, 0x00, 0x00, 0xA4, 0xE5, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0xD9, 0x79, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0xB4, 0xB4, 0xB4, 0xB3, 0xDD, 0xBD, 0x00, 0x00, /* 0x90-0x93 */
+	0xEF, 0xD8, 0xC4, 0xE3, 0xF7, 0xDE, 0xA4, 0xE6, /* 0x94-0x97 */
+	0x00, 0x00, 0xAE, 0xC6, 0x00, 0x00, 0xB1, 0xD8, /* 0x98-0x9B */
+	0xB1, 0xD7, 0xD9, 0x7A, 0xD9, 0x7B, 0xB7, 0x72, /* 0x9C-0x9F */
+	0xE1, 0xF5, 0xBA, 0x57, 0xE9, 0xB2, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xA4, 0xE7, 0xA5, 0xB8, 0x00, 0x00, 0xA9, 0xF2, /* 0xA4-0xA7 */
+	0xCC, 0xC2, 0x00, 0x00, 0xCE, 0xE9, 0xAC, 0x48, /* 0xA8-0xAB */
+	0xB1, 0xD9, 0x00, 0x00, 0xD9, 0x7C, 0xB4, 0xB5, /* 0xAC-0xAF */
+	0xB7, 0x73, 0x00, 0x00, 0xE5, 0xC1, 0xE5, 0xC2, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0xEC, 0xF0, 0xC2, 0x5F, /* 0xB4-0xB7 */
+	0xF8, 0xF0, 0xA4, 0xE8, 0x00, 0x00, 0xCC, 0xC3, /* 0xB8-0xBB */
+	0xA9, 0xF3, 0xAC, 0x49, 0x00, 0x00, 0xCE, 0xEA, /* 0xBC-0xBF */
+	0x00, 0x00, 0xAE, 0xC7, 0xD1, 0xD2, 0xD1, 0xD0, /* 0xC0-0xC3 */
+	0xD1, 0xD1, 0xAE, 0xC8, 0xD1, 0xCF, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB1, 0xDB, /* 0xC8-0xCB */
+	0xB1, 0xDC, 0xD5, 0xA8, 0xB1, 0xDD, 0xB1, 0xDA, /* 0xCC-0xCF */
+	0xD9, 0x7D, 0x00, 0x00, 0xD9, 0x7E, 0xDD, 0xBE, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0xBA, 0x59, 0xBA, 0x58, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0xEC, 0xF1, 0xEF, 0xD9, /* 0xD8-0xDB */
+	0x00, 0x00, 0xF2, 0x4A, 0xF2, 0x49, 0xF4, 0x4F, /* 0xDC-0xDF */
+	0x00, 0x00, 0xC9, 0x5E, 0xAC, 0x4A, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xA4, 0xE9, 0xA5, 0xB9, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xA6, 0xAE, 0xA6, 0xAD, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0xA6, 0xAF, 0xA6, 0xB0, 0xC9, 0xEE, 0xC9, 0xED, /* 0xEC-0xEF */
+	0xCA, 0xF8, 0xA7, 0xF2, 0xCA, 0xFB, 0xCA, 0xFA, /* 0xF0-0xF3 */
+	0xCA, 0xF9, 0xCA, 0xFC, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0xA9, 0xF4, 0xCC, 0xC9, /* 0xF8-0xFB */
+	0xCC, 0xC5, 0xCC, 0xCE, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_66[512] = {
+	0xA9, 0xFB, 0x00, 0x00, 0xA9, 0xF9, 0xCC, 0xCA, /* 0x00-0x03 */
+	0xCC, 0xC6, 0xCC, 0xCD, 0xA9, 0xF8, 0xAA, 0x40, /* 0x04-0x07 */
+	0xCC, 0xC8, 0xCC, 0xC4, 0xA9, 0xFE, 0xCC, 0xCB, /* 0x08-0x0B */
+	0xA9, 0xF7, 0xCC, 0xCC, 0xA9, 0xFA, 0xA9, 0xFC, /* 0x0C-0x0F */
+	0xCC, 0xD0, 0xCC, 0xCF, 0xCC, 0xC7, 0xA9, 0xF6, /* 0x10-0x13 */
+	0xA9, 0xF5, 0xA9, 0xFD, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0xCE, 0xEF, 0xCE, 0xF5, 0x00, 0x00, 0xAC, 0x50, /* 0x1C-0x1F */
+	0xAC, 0x4D, 0xCE, 0xEC, 0xCE, 0xF1, 0x00, 0x00, /* 0x20-0x23 */
+	0xAC, 0x53, 0xAC, 0x4B, 0xCE, 0xF0, 0xAC, 0x4E, /* 0x24-0x27 */
+	0xAC, 0x51, 0x00, 0x00, 0x00, 0x00, 0xCE, 0xF3, /* 0x28-0x2B */
+	0x00, 0x00, 0xAC, 0x4C, 0xCE, 0xF8, 0xAC, 0x4F, /* 0x2C-0x2F */
+	0x00, 0x00, 0xAC, 0x52, 0xCE, 0xED, 0xCE, 0xF2, /* 0x30-0x33 */
+	0xCE, 0xF6, 0xCE, 0xEE, 0xCE, 0xEB, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0xCE, 0xF7, 0xCE, 0xF4, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0xAE, 0xD0, 0xAE, 0xC9, 0xAE, 0xCC, /* 0x40-0x43 */
+	0x00, 0x00, 0xAE, 0xCF, 0x00, 0x00, 0xD1, 0xD5, /* 0x44-0x47 */
+	0x00, 0x00, 0xAE, 0xCA, 0xD1, 0xD3, 0x00, 0x00, /* 0x48-0x4B */
+	0xAE, 0xCE, 0x00, 0x00, 0x00, 0x00, 0xAE, 0xCB, /* 0x4C-0x4F */
+	0x00, 0x00, 0xD1, 0xD6, 0xAE, 0xCD, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0xD5, 0xAC, 0xB1, 0xDF, 0xD5, 0xAB, /* 0x58-0x5B */
+	0xD5, 0xAD, 0xB1, 0xDE, 0xB1, 0xE3, 0xD1, 0xD4, /* 0x5C-0x5F */
+	0x00, 0x00, 0xD5, 0xAA, 0xD5, 0xAE, 0x00, 0x00, /* 0x60-0x63 */
+	0xB1, 0xE0, 0xD5, 0xA9, 0xB1, 0xE2, 0x00, 0x00, /* 0x64-0x67 */
+	0xB1, 0xE1, 0x00, 0x00, 0xD9, 0xA7, 0x00, 0x00, /* 0x68-0x6B */
+	0xD9, 0xA2, 0x00, 0x00, 0xB4, 0xB6, 0xB4, 0xBA, /* 0x6C-0x6F */
+	0xB4, 0xB7, 0xD9, 0xA5, 0xD9, 0xA8, 0x00, 0x00, /* 0x70-0x73 */
+	0xB4, 0xB8, 0x00, 0x00, 0xB4, 0xB9, 0xB4, 0xBE, /* 0x74-0x77 */
+	0xDD, 0xC7, 0xD9, 0xA6, 0xB4, 0xBC, 0xD9, 0xA3, /* 0x78-0x7B */
+	0xD9, 0xA1, 0x00, 0x00, 0xB4, 0xBD, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xD9, 0xA4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0xB7, 0x79, 0x00, 0x00, 0xDD, 0xBF, 0xB7, 0x76, /* 0x84-0x87 */
+	0xB7, 0x77, 0xB7, 0x75, 0xDD, 0xC4, 0xDD, 0xC3, /* 0x88-0x8B */
+	0xDD, 0xC0, 0xB7, 0x7B, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0xDD, 0xC2, 0xB4, 0xBB, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0xDD, 0xC6, 0xDD, 0xC1, 0xB7, 0x78, 0xB7, 0x74, /* 0x94-0x97 */
+	0xB7, 0x7A, 0xDD, 0xC5, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0xBA, 0x5C, 0x00, 0x00, 0xE1, 0xF8, /* 0x9C-0x9F */
+	0xE1, 0xF7, 0xE1, 0xF6, 0xBA, 0x5A, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xBA, 0x5B, 0xE5, 0xC5, 0xE5, 0xC8, 0xBC, 0xC8, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0xBC, 0xC7, 0xE5, 0xC9, /* 0xAC-0xAF */
+	0xE5, 0xC4, 0xBC, 0xCA, 0xE5, 0xC6, 0x00, 0x00, /* 0xB0-0xB3 */
+	0xBC, 0xC9, 0xE5, 0xC3, 0x00, 0x00, 0xE5, 0xC7, /* 0xB4-0xB7 */
+	0xBE, 0xE9, 0xBE, 0xE6, 0xE9, 0xBB, 0xE9, 0xBA, /* 0xB8-0xBB */
+	0x00, 0x00, 0xE9, 0xB9, 0xE9, 0xB4, 0x00, 0x00, /* 0xBC-0xBF */
+	0xE9, 0xB5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xBE, 0xE7, 0x00, 0x00, 0xBE, 0xE4, 0xBE, 0xE8, /* 0xC4-0xC7 */
+	0xE9, 0xB3, 0xBE, 0xE5, 0xE9, 0xB6, 0xE9, 0xB7, /* 0xC8-0xCB */
+	0xE9, 0xBC, 0x00, 0x00, 0x00, 0x00, 0xE9, 0xB8, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0xEC, 0xF2, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0xC0, 0xC7, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xEF, 0xDC, 0xC0, 0xC6, 0xEF, 0xDA, 0xEF, 0xDB, /* 0xD8-0xDB */
+	0xC2, 0x60, 0xC3, 0x6E, 0xF2, 0x4B, 0x00, 0x00, /* 0xDC-0xDF */
+	0xC3, 0x6D, 0x00, 0x00, 0x00, 0x00, 0xF4, 0x51, /* 0xE0-0xE3 */
+	0xF4, 0x52, 0x00, 0x00, 0xC4, 0x66, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xF4, 0x50, 0xC4, 0xE4, 0x00, 0x00, 0xF7, 0xDF, /* 0xE8-0xEB */
+	0xC5, 0xCE, 0xF8, 0xAA, 0xF8, 0xAB, 0x00, 0x00, /* 0xEC-0xEF */
+	0xA4, 0xEA, 0x00, 0x00, 0xA6, 0xB1, 0xA6, 0xB2, /* 0xF0-0xF3 */
+	0xA7, 0xF3, 0x00, 0x00, 0xCC, 0xD1, 0xAC, 0x54, /* 0xF4-0xF7 */
+	0xAE, 0xD1, 0xB1, 0xE4, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0xB0, 0xD2, 0x00, 0x00, 0xB4, 0xBF, 0xB4, 0xC0, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_67[512] = {
+	0xB3, 0xCC, 0xD9, 0xA9, 0x00, 0x00, 0xB7, 0x7C, /* 0x00-0x03 */
+	0xE1, 0xFA, 0xE1, 0xF9, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0xA4, 0xEB, 0xA6, 0xB3, 0xCC, 0xD2, 0xAA, 0x42, /* 0x08-0x0B */
+	0x00, 0x00, 0xAA, 0x41, 0x00, 0x00, 0xCE, 0xF9, /* 0x0C-0x0F */
+	0xCE, 0xFA, 0x00, 0x00, 0xD1, 0xD7, 0xD1, 0xD8, /* 0x10-0x13 */
+	0xAE, 0xD2, 0xAE, 0xD3, 0x00, 0x00, 0xAE, 0xD4, /* 0x14-0x17 */
+	0xD5, 0xAF, 0x00, 0x00, 0x00, 0x00, 0xB1, 0xE6, /* 0x18-0x1B */
+	0x00, 0x00, 0xB4, 0xC2, 0x00, 0x00, 0xB4, 0xC1, /* 0x1C-0x1F */
+	0xDD, 0xC8, 0xDF, 0x7A, 0xE1, 0xFB, 0xE9, 0xBD, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0xC2, 0x61, 0xC4, 0x67, /* 0x24-0x27 */
+	0xA4, 0xEC, 0x00, 0x00, 0xA5, 0xBC, 0xA5, 0xBD, /* 0x28-0x2B */
+	0xA5, 0xBB, 0xA5, 0xBE, 0xA5, 0xBA, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0xA6, 0xB6, 0x00, 0x00, 0xC9, 0xF6, /* 0x30-0x33 */
+	0xA6, 0xB5, 0xA6, 0xB7, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0xC9, 0xF1, 0xC9, 0xF0, 0xC9, 0xF3, 0xC9, 0xF2, /* 0x38-0x3B */
+	0xC9, 0xF5, 0xA6, 0xB4, 0xC9, 0xEF, 0xC9, 0xF4, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0xCA, 0xFD, 0xA7, 0xFD, 0xCA, 0xFE, /* 0x44-0x47 */
+	0xCB, 0x43, 0xA7, 0xFC, 0x00, 0x00, 0xCB, 0x47, /* 0x48-0x4B */
+	0xCB, 0x42, 0xCB, 0x45, 0xA7, 0xF5, 0xA7, 0xF6, /* 0x4C-0x4F */
+	0xA7, 0xF7, 0xA7, 0xF8, 0x00, 0x00, 0xA8, 0x40, /* 0x50-0x53 */
+	0x00, 0x00, 0xCB, 0x41, 0xA7, 0xFA, 0xA8, 0x41, /* 0x54-0x57 */
+	0x00, 0x00, 0xCB, 0x40, 0xCB, 0x46, 0x00, 0x00, /* 0x58-0x5B */
+	0xA7, 0xF9, 0xCB, 0x44, 0xA7, 0xFB, 0xA7, 0xF4, /* 0x5C-0x5F */
+	0xA7, 0xFE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0xAA, 0x57, 0x00, 0x00, /* 0x68-0x6B */
+	0xCC, 0xD4, 0xAA, 0x43, 0x00, 0x00, 0xAA, 0x4D, /* 0x6C-0x6F */
+	0xAA, 0x4E, 0xAA, 0x46, 0xAA, 0x58, 0xAA, 0x48, /* 0x70-0x73 */
+	0xCC, 0xDC, 0xAA, 0x53, 0xCC, 0xD7, 0xAA, 0x49, /* 0x74-0x77 */
+	0xCC, 0xE6, 0xCC, 0xE7, 0xCC, 0xDF, 0xCC, 0xD8, /* 0x78-0x7B */
+	0xAA, 0x56, 0xCC, 0xE4, 0xAA, 0x51, 0xAA, 0x4F, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xCC, 0xE5, 0x00, 0x00, 0xCC, 0xE3, /* 0x80-0x83 */
+	0xCC, 0xDB, 0xCC, 0xD3, 0xCC, 0xDA, 0xAA, 0x4A, /* 0x84-0x87 */
+	0x00, 0x00, 0xAA, 0x50, 0x00, 0x00, 0xAA, 0x44, /* 0x88-0x8B */
+	0xCC, 0xDE, 0xCC, 0xDD, 0xCC, 0xD5, 0x00, 0x00, /* 0x8C-0x8F */
+	0xAA, 0x52, 0xCC, 0xE1, 0xCC, 0xD6, 0xAA, 0x55, /* 0x90-0x93 */
+	0xCC, 0xE8, 0xAA, 0x45, 0x00, 0x00, 0xAA, 0x4C, /* 0x94-0x97 */
+	0xCC, 0xD9, 0xCC, 0xE2, 0xAA, 0x54, 0x00, 0x00, /* 0x98-0x9B */
+	0xAA, 0x47, 0xAA, 0x4B, 0x00, 0x00, 0xCC, 0xE0, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0xCF, 0x5B, 0xAC, 0x5C, /* 0xAC-0xAF */
+	0xAC, 0x69, 0x00, 0x00, 0xCF, 0x56, 0xCF, 0x4C, /* 0xB0-0xB3 */
+	0xAC, 0x62, 0xCF, 0x4A, 0xAC, 0x5B, 0xCF, 0x45, /* 0xB4-0xB7 */
+	0xAC, 0x65, 0xCF, 0x52, 0xCE, 0xFE, 0xCF, 0x41, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0xCF, 0x44, 0xCE, 0xFB, 0xCF, 0x51, 0xCF, 0x61, /* 0xC0-0xC3 */
+	0xAC, 0x60, 0xCF, 0x46, 0xCF, 0x58, 0x00, 0x00, /* 0xC4-0xC7 */
+	0xCE, 0xFD, 0xCF, 0x5F, 0xCF, 0x60, 0xCF, 0x63, /* 0xC8-0xCB */
+	0xCF, 0x5A, 0xCF, 0x4B, 0xCF, 0x53, 0xAC, 0x66, /* 0xCC-0xCF */
+	0xAC, 0x59, 0xAC, 0x61, 0xAC, 0x6D, 0xAC, 0x56, /* 0xD0-0xD3 */
+	0xAC, 0x58, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xCF, 0x43, 0xAC, 0x6A, 0xAC, 0x63, 0xCF, 0x5D, /* 0xD8-0xDB */
+	0xCF, 0x40, 0xAC, 0x6C, 0xAC, 0x67, 0xCF, 0x49, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0xAC, 0x6B, 0xCF, 0x50, /* 0xE0-0xE3 */
+	0xCF, 0x48, 0xAC, 0x64, 0xCF, 0x5C, 0xCF, 0x54, /* 0xE4-0xE7 */
+	0x00, 0x00, 0xAC, 0x5E, 0xCF, 0x62, 0xCF, 0x47, /* 0xE8-0xEB */
+	0xAC, 0x5A, 0xCF, 0x59, 0xCF, 0x4F, 0xAC, 0x5F, /* 0xEC-0xEF */
+	0xCF, 0x55, 0xAC, 0x57, 0xCE, 0xFC, 0xAC, 0x68, /* 0xF0-0xF3 */
+	0xAE, 0xE3, 0xAC, 0x5D, 0xCF, 0x4E, 0xCF, 0x4D, /* 0xF4-0xF7 */
+	0xCF, 0x42, 0x00, 0x00, 0xCF, 0x5E, 0x00, 0x00, /* 0xF8-0xFB */
+	0xCF, 0x57, 0x00, 0x00, 0x00, 0x00, 0xAC, 0x55, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_68[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0xD1, 0xEC, 0xAE, 0xEA, /* 0x10-0x13 */
+	0xD1, 0xED, 0x00, 0x00, 0xD1, 0xE1, 0xAE, 0xDF, /* 0x14-0x17 */
+	0xAE, 0xEB, 0x00, 0x00, 0xD1, 0xDA, 0x00, 0x00, /* 0x18-0x1B */
+	0xD1, 0xE3, 0xD1, 0xEB, 0x00, 0x00, 0xD1, 0xD9, /* 0x1C-0x1F */
+	0xD1, 0xF4, 0xAE, 0xD5, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0xD1, 0xF3, 0xD1, 0xEE, 0x00, 0x00, /* 0x24-0x27 */
+	0xD1, 0xEF, 0xAE, 0xDD, 0xAE, 0xE8, 0xD1, 0xE5, /* 0x28-0x2B */
+	0x00, 0x00, 0xD1, 0xE6, 0xD1, 0xF0, 0xD1, 0xE7, /* 0x2C-0x2F */
+	0x00, 0x00, 0xD1, 0xE2, 0xD1, 0xDC, 0xD1, 0xDD, /* 0x30-0x33 */
+	0xD1, 0xEA, 0xD1, 0xE4, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0xAE, 0xD6, 0xAE, 0xDA, 0xD1, 0xF2, 0xD1, 0xDE, /* 0x38-0x3B */
+	0xAE, 0xE6, 0xAE, 0xE2, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0xAE, 0xE5, 0xAE, 0xEC, 0xAE, 0xDB, 0xAE, 0xE7, /* 0x40-0x43 */
+	0xD1, 0xE9, 0xAE, 0xE9, 0xAE, 0xD8, 0x00, 0x00, /* 0x44-0x47 */
+	0xAE, 0xD7, 0xD1, 0xDB, 0x00, 0x00, 0xD1, 0xDF, /* 0x48-0x4B */
+	0xAE, 0xE0, 0xD1, 0xF1, 0xD1, 0xE8, 0xD1, 0xE0, /* 0x4C-0x4F */
+	0xAE, 0xE4, 0xAE, 0xE1, 0x00, 0x00, 0xAE, 0xD9, /* 0x50-0x53 */
+	0xAE, 0xDC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD5, 0xC4, /* 0x68-0x6B */
+	0x00, 0x00, 0xD5, 0xB4, 0xD5, 0xB5, 0xD5, 0xB9, /* 0x6C-0x6F */
+	0x00, 0x00, 0xD5, 0xC8, 0xD5, 0xC5, 0x00, 0x00, /* 0x70-0x73 */
+	0xD5, 0xBE, 0xD5, 0xBD, 0xB1, 0xED, 0xD5, 0xC1, /* 0x74-0x77 */
+	0xD5, 0xD0, 0xD5, 0xB0, 0x00, 0x00, 0xD5, 0xD1, /* 0x78-0x7B */
+	0xD5, 0xC3, 0xD5, 0xD5, 0xD5, 0xC9, 0xB1, 0xEC, /* 0x7C-0x7F */
+	
+	0xD5, 0xC7, 0xB1, 0xE7, 0xB1, 0xFC, 0xB1, 0xF2, /* 0x80-0x83 */
+	0x00, 0x00, 0xB1, 0xF6, 0xB1, 0xF5, 0xD5, 0xB1, /* 0x84-0x87 */
+	0x00, 0x00, 0xD5, 0xCE, 0xD5, 0xD4, 0xD5, 0xCC, /* 0x88-0x8B */
+	0xD5, 0xD3, 0x00, 0x00, 0x00, 0x00, 0xD5, 0xC0, /* 0x8C-0x8F */
+	0xD5, 0xB2, 0xD5, 0xD2, 0xD5, 0xC2, 0xB1, 0xEA, /* 0x90-0x93 */
+	0xB1, 0xF7, 0x00, 0x00, 0xD5, 0xCB, 0xB1, 0xF0, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD5, 0xCA, /* 0x98-0x9B */
+	0xD5, 0xB3, 0xB1, 0xF8, 0x00, 0x00, 0xB1, 0xFA, /* 0x9C-0x9F */
+	0xD5, 0xCD, 0xB1, 0xFB, 0xB1, 0xE9, 0xD5, 0xBA, /* 0xA0-0xA3 */
+	0xD5, 0xCF, 0x00, 0x00, 0x00, 0x00, 0xB1, 0xEF, /* 0xA4-0xA7 */
+	0xB1, 0xF9, 0xD5, 0xBC, 0xD5, 0xC6, 0xD5, 0xB7, /* 0xA8-0xAB */
+	0xD5, 0xBB, 0xB1, 0xF4, 0xD5, 0xB6, 0xB1, 0xE8, /* 0xAC-0xAF */
+	0xB1, 0xF1, 0xB1, 0xEE, 0xD5, 0xBF, 0xAE, 0xDE, /* 0xB0-0xB3 */
+	0xD9, 0xC0, 0xB1, 0xEB, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xB1, 0xF3, 0x00, 0x00, 0xD9, 0xC3, 0xD9, 0xD9, /* 0xC4-0xC7 */
+	0xD9, 0xCE, 0xB4, 0xD6, 0x00, 0x00, 0xB4, 0xD1, /* 0xC8-0xCB */
+	0xD9, 0xBD, 0xB4, 0xD2, 0xD9, 0xCD, 0x00, 0x00, /* 0xCC-0xCF */
+	0xD9, 0xC6, 0xD9, 0xD3, 0xB4, 0xCE, 0xD9, 0xAB, /* 0xD0-0xD3 */
+	0xD9, 0xD5, 0xB4, 0xC4, 0xD9, 0xB3, 0xB4, 0xC7, /* 0xD4-0xD7 */
+	0xB4, 0xC6, 0x00, 0x00, 0xB4, 0xD7, 0x00, 0x00, /* 0xD8-0xDB */
+	0xD9, 0xAD, 0xD9, 0xCF, 0xD9, 0xD0, 0xB4, 0xC9, /* 0xDC-0xDF */
+	0xB4, 0xC5, 0xD9, 0xBB, 0x00, 0x00, 0xB4, 0xD0, /* 0xE0-0xE3 */
+	0xD9, 0xB6, 0x00, 0x00, 0xD9, 0xD1, 0xB4, 0xCC, /* 0xE4-0xE7 */
+	0xD9, 0xC9, 0xD9, 0xD6, 0xD9, 0xB0, 0xD9, 0xB5, /* 0xE8-0xEB */
+	0xD9, 0xAF, 0x00, 0x00, 0xB4, 0xCB, 0xD9, 0xC2, /* 0xEC-0xEF */
+	0xDD, 0xDE, 0xD9, 0xB1, 0xB4, 0xCF, 0xD9, 0xBA, /* 0xF0-0xF3 */
+	0xD9, 0xD2, 0xB4, 0xCA, 0xD9, 0xB7, 0xD9, 0xB4, /* 0xF4-0xF7 */
+	0xD9, 0xC5, 0xB4, 0xCD, 0xB4, 0xC3, 0xB4, 0xD9, /* 0xF8-0xFB */
+	0xD9, 0xC8, 0xD9, 0xC7, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_69[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0xD9, 0xAC, 0xB4, 0xC8, 0xD9, 0xD4, 0xD9, 0xBC, /* 0x04-0x07 */
+	0xD9, 0xBE, 0x00, 0x00, 0xD9, 0xCB, 0xD9, 0xCA, /* 0x08-0x0B */
+	0xD9, 0xAA, 0xB4, 0xD3, 0xB4, 0xD5, 0xD9, 0xB2, /* 0x0C-0x0F */
+	0xD9, 0xB9, 0xD9, 0xC1, 0xB4, 0xD4, 0xD9, 0xB8, /* 0x10-0x13 */
+	0xD9, 0xC4, 0xD9, 0xD7, 0x00, 0x00, 0xD9, 0xCC, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0xD9, 0xD8, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xD9, 0xAE, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDD, 0xF2, /* 0x2C-0x2F */
+	0xB7, 0xA6, 0x00, 0x00, 0xDD, 0xF0, 0xDD, 0xDB, /* 0x30-0x33 */
+	0xDD, 0xE0, 0xDD, 0xD9, 0x00, 0x00, 0xDD, 0xEC, /* 0x34-0x37 */
+	0xDD, 0xCB, 0xDD, 0xD2, 0x00, 0x00, 0xDD, 0xEA, /* 0x38-0x3B */
+	0xDD, 0xF4, 0xDD, 0xDC, 0x00, 0x00, 0xDD, 0xCF, /* 0x3C-0x3F */
+	0xDD, 0xE2, 0xDD, 0xE7, 0xDD, 0xD3, 0x00, 0x00, /* 0x40-0x43 */
+	0xDD, 0xE4, 0xDD, 0xD0, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0xDD, 0xD7, 0xDD, 0xD8, 0xB7, 0xA8, 0xDD, 0xEB, /* 0x48-0x4B */
+	0xDD, 0xE9, 0x00, 0x00, 0xDD, 0xCC, 0xDD, 0xEE, /* 0x4C-0x4F */
+	0x00, 0x00, 0xDD, 0xEF, 0xDD, 0xF1, 0xB7, 0xAC, /* 0x50-0x53 */
+	0xB7, 0xA4, 0x00, 0x00, 0xD5, 0xB8, 0xDD, 0xD4, /* 0x54-0x57 */
+	0xDD, 0xE6, 0xDD, 0xD5, 0xB7, 0xA1, 0xB7, 0xB1, /* 0x58-0x5B */
+	0xDD, 0xED, 0xB7, 0xAF, 0xB7, 0xAB, 0xDD, 0xCA, /* 0x5C-0x5F */
+	0xB7, 0xA3, 0x00, 0x00, 0xDD, 0xCD, 0xB7, 0xB0, /* 0x60-0x63 */
+	0x00, 0x00, 0xDD, 0xDD, 0xDD, 0xC9, 0x00, 0x00, /* 0x64-0x67 */
+	0xB7, 0xA9, 0xDD, 0xE1, 0xDD, 0xD1, 0xB7, 0xAA, /* 0x68-0x6B */
+	0xDD, 0xDA, 0xB7, 0x7E, 0xB4, 0xD8, 0xDD, 0xE3, /* 0x6C-0x6F */
+	0xD9, 0xBF, 0xDD, 0xCE, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0xDD, 0xE8, 0xB7, 0xA5, 0xDD, 0xE5, 0xB7, 0xA2, /* 0x74-0x77 */
+	0xDD, 0xDF, 0xB7, 0xAD, 0xDD, 0xD6, 0xDD, 0xF3, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0xB7, 0xA7, 0xDE, 0xC6, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0xB7, 0xAE, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0xE2, 0x4A, 0xE2, 0x48, 0x00, 0x00, /* 0x8C-0x8F */
+	0xE2, 0x5E, 0xE2, 0x46, 0x00, 0x00, 0xE2, 0x58, /* 0x90-0x93 */
+	0xB7, 0x7D, 0xBA, 0x5F, 0xE2, 0x42, 0xE2, 0x5D, /* 0x94-0x97 */
+	0x00, 0x00, 0xE2, 0x47, 0xE2, 0x55, 0xBA, 0x64, /* 0x98-0x9B */
+	0xBA, 0x5D, 0x00, 0x00, 0xE2, 0x5B, 0x00, 0x00, /* 0x9C-0x9F */
+	0xE2, 0x40, 0xE2, 0x5A, 0x00, 0x00, 0xBA, 0x6F, /* 0xA0-0xA3 */
+	0xE2, 0x51, 0xE2, 0x61, 0xBA, 0x6D, 0xE2, 0x49, /* 0xA4-0xA7 */
+	0xBA, 0x5E, 0xE2, 0x4B, 0xE2, 0x59, 0xBA, 0x67, /* 0xA8-0xAB */
+	0xE2, 0x44, 0xBA, 0x6B, 0xBA, 0x61, 0xE2, 0x4D, /* 0xAC-0xAF */
+	0xE2, 0x43, 0xE1, 0xFC, 0x00, 0x00, 0xE2, 0x57, /* 0xB0-0xB3 */
+	0xBA, 0x68, 0xE2, 0x60, 0xE1, 0xFD, 0xBA, 0x65, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xE2, 0x53, 0x00, 0x00, 0xBA, 0x66, /* 0xB8-0xBB */
+	0xE2, 0x45, 0xE2, 0x50, 0xE2, 0x4C, 0xE2, 0x4E, /* 0xBC-0xBF */
+	0x00, 0x00, 0xBA, 0x60, 0xE2, 0x5F, 0xBA, 0x6E, /* 0xC0-0xC3 */
+	0xE2, 0x4F, 0x00, 0x00, 0xE2, 0x62, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xE1, 0xFE, 0xE2, 0x54, 0xBA, 0x63, /* 0xC8-0xCB */
+	0xBA, 0x6C, 0xBA, 0x6A, 0xE2, 0x41, 0xE2, 0x56, /* 0xCC-0xCF */
+	0xBA, 0x69, 0x00, 0x00, 0x00, 0x00, 0xBA, 0x62, /* 0xD0-0xD3 */
+	0xE2, 0x52, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xE2, 0x5C, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0xE5, 0xD5, 0x00, 0x00, /* 0xE0-0xE3 */
+	0xE5, 0xD1, 0xE5, 0xCD, 0xE5, 0xE1, 0xE5, 0xDE, /* 0xE4-0xE7 */
+	0xBC, 0xCD, 0x00, 0x00, 0x00, 0x00, 0xE5, 0xE5, /* 0xE8-0xEB */
+	0xE5, 0xD4, 0xBC, 0xD8, 0xE5, 0xDB, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0xE5, 0xD0, 0xE5, 0xDA, 0xBC, 0xD5, /* 0xF0-0xF3 */
+	0xE5, 0xEE, 0x00, 0x00, 0xE5, 0xEB, 0xE5, 0xDD, /* 0xF4-0xF7 */
+	0xE5, 0xCE, 0x00, 0x00, 0x00, 0x00, 0xE5, 0xE2, /* 0xF8-0xFB */
+	0xE5, 0xE4, 0xBC, 0xD1, 0xE5, 0xD8, 0xE5, 0xD3, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_6A[512] = {
+	0xE5, 0xCA, 0xBC, 0xCE, 0xBC, 0xD6, 0x00, 0x00, /* 0x00-0x03 */
+	0xE5, 0xE7, 0xBC, 0xD7, 0xE5, 0xCB, 0xE5, 0xED, /* 0x04-0x07 */
+	0xE5, 0xE0, 0xE5, 0xE6, 0xBC, 0xD4, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0xE5, 0xE3, 0x00, 0x00, 0xE5, 0xEA, /* 0x0C-0x0F */
+	0x00, 0x00, 0xBC, 0xD9, 0x00, 0x00, 0xBC, 0xD3, /* 0x10-0x13 */
+	0xE5, 0xDC, 0xE5, 0xCF, 0xE5, 0xEF, 0xE5, 0xCC, /* 0x14-0x17 */
+	0xE5, 0xE8, 0xBC, 0xD0, 0x00, 0x00, 0xE5, 0xD6, /* 0x18-0x1B */
+	0x00, 0x00, 0xE5, 0xD7, 0xBC, 0xCF, 0xBC, 0xCC, /* 0x1C-0x1F */
+	0xE5, 0xD2, 0xBC, 0xD2, 0x00, 0x00, 0xBC, 0xCB, /* 0x20-0x23 */
+	0x00, 0x00, 0xE5, 0xE9, 0xE5, 0xEC, 0xE5, 0xD9, /* 0x24-0x27 */
+	0xE9, 0xCA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xC2, 0x00, 0x00, /* 0x30-0x33 */
+	0xE9, 0xBE, 0xBE, 0xF6, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0xBE, 0xEB, 0xBE, 0xF0, 0xBE, 0xEC, 0xE9, 0xCC, /* 0x38-0x3B */
+	0xE9, 0xD7, 0xBE, 0xEA, 0xE9, 0xC4, 0xE9, 0xCD, /* 0x3C-0x3F */
+	0xE5, 0xDF, 0xE9, 0xCE, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0xBE, 0xF1, 0x00, 0x00, 0xE9, 0xDD, 0xBE, 0xF5, /* 0x44-0x47 */
+	0xBE, 0xF8, 0xE9, 0xC0, 0x00, 0x00, 0xBE, 0xF4, /* 0x48-0x4B */
+	0x00, 0x00, 0xE9, 0xDB, 0xE9, 0xDC, 0xE9, 0xD2, /* 0x4C-0x4F */
+	0xE9, 0xD1, 0xE9, 0xC9, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0xE9, 0xD3, 0xE9, 0xDA, 0xE9, 0xD9, 0x00, 0x00, /* 0x54-0x57 */
+	0xBE, 0xEF, 0xBE, 0xED, 0xE9, 0xCB, 0xE9, 0xC8, /* 0x58-0x5B */
+	0x00, 0x00, 0xE9, 0xC5, 0xE9, 0xD8, 0xBE, 0xF7, /* 0x5C-0x5F */
+	0xE9, 0xD6, 0xBE, 0xF3, 0xBE, 0xF2, 0x00, 0x00, /* 0x60-0x63 */
+	0xE9, 0xD0, 0x00, 0x00, 0xE9, 0xBF, 0xE9, 0xC1, /* 0x64-0x67 */
+	0xE9, 0xC3, 0xE9, 0xD5, 0xE9, 0xCF, 0xBE, 0xEE, /* 0x68-0x6B */
+	0x00, 0x00, 0xE9, 0xC6, 0x00, 0x00, 0xE9, 0xD4, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xC7, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0xC0, 0xCF, 0xED, 0x45, /* 0x7C-0x7F */
+	
+	0xC0, 0xC8, 0xEC, 0xF5, 0x00, 0x00, 0xED, 0x41, /* 0x80-0x83 */
+	0xC0, 0xCA, 0xED, 0x48, 0x00, 0x00, 0xEC, 0xFC, /* 0x84-0x87 */
+	0x00, 0x00, 0xEC, 0xF7, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0xED, 0x49, 0xEC, 0xF3, 0xEC, 0xFE, 0x00, 0x00, /* 0x8C-0x8F */
+	0xC0, 0xD1, 0xED, 0x44, 0xED, 0x4A, 0xEC, 0xFD, /* 0x90-0x93 */
+	0xC0, 0xC9, 0xED, 0x40, 0xEC, 0xF4, 0xC0, 0xD0, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0xED, 0x47, 0xEC, 0xF9, /* 0x98-0x9B */
+	0xC0, 0xCC, 0x00, 0x00, 0xEC, 0xFB, 0xEC, 0xF8, /* 0x9C-0x9F */
+	0xC0, 0xD2, 0xEC, 0xFA, 0xC0, 0xCB, 0xC0, 0xCE, /* 0xA0-0xA3 */
+	0xED, 0x43, 0xEC, 0xF6, 0xED, 0x46, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xED, 0x42, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0xC2, 0x63, 0xEF, 0xE7, 0xC2, 0x68, 0xC2, 0x69, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC2, 0x62, /* 0xB0-0xB3 */
+	0xEF, 0xE6, 0x00, 0x00, 0xEF, 0xE3, 0xEF, 0xE4, /* 0xB4-0xB7 */
+	0xC2, 0x66, 0xEF, 0xDE, 0xEF, 0xE2, 0xC2, 0x65, /* 0xB8-0xBB */
+	0x00, 0x00, 0xEF, 0xDF, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0xC2, 0x67, 0xC2, 0x64, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xEF, 0xDD, 0xEF, 0xE1, 0xEF, 0xE5, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF2, 0x51, /* 0xC8-0xCB */
+	0xF2, 0x4E, 0xF2, 0x57, 0x00, 0x00, 0xF2, 0x56, /* 0xCC-0xCF */
+	0xF2, 0x54, 0xF2, 0x4F, 0x00, 0x00, 0xC3, 0x72, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xF2, 0x50, 0xC3, 0x71, 0xC0, 0xCD, /* 0xD8-0xDB */
+	0xF2, 0x53, 0xC3, 0x70, 0xF2, 0x58, 0xF2, 0x52, /* 0xDC-0xDF */
+	0xF2, 0x4D, 0xEF, 0xE0, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xC3, 0x6F, 0x00, 0x00, 0xF2, 0x4C, /* 0xE4-0xE7 */
+	0xF4, 0x56, 0x00, 0x00, 0xF4, 0x55, 0xF2, 0x55, /* 0xE8-0xEB */
+	0xC4, 0x68, 0x00, 0x00, 0xF4, 0x59, 0xF4, 0x5A, /* 0xEC-0xEF */
+	0xF4, 0x54, 0xF4, 0x58, 0x00, 0x00, 0xF4, 0x53, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xF5, 0xD1, 0xF4, 0x57, 0xC4, 0xE7, 0xC4, 0xE5, /* 0xF8-0xFB */
+	0xF5, 0xCF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_6B[512] = {
+	0xF5, 0xD2, 0x00, 0x00, 0xF5, 0xCE, 0xF5, 0xD0, /* 0x00-0x03 */
+	0xC4, 0xE6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0xF6, 0xE5, 0xF6, 0xE6, 0xC5, 0x76, 0xF6, 0xE4, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF7, 0xE2, /* 0x0C-0x0F */
+	0xC5, 0xCF, 0xF7, 0xE0, 0xF7, 0xE1, 0xF8, 0xAC, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xC6, 0x56, 0xF8, 0xF3, /* 0x14-0x17 */
+	0xF8, 0xF1, 0xF8, 0xF2, 0xF8, 0xF4, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0xF9, 0xBB, 0x00, 0x00, /* 0x1C-0x1F */
+	0xA4, 0xED, 0xA6, 0xB8, 0x00, 0x00, 0xAA, 0x59, /* 0x20-0x23 */
+	0x00, 0x00, 0xCC, 0xE9, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0xCF, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0xD1, 0xF5, 0xD1, 0xF7, 0x00, 0x00, 0xD1, 0xF6, /* 0x2C-0x2F */
+	0x00, 0x00, 0xD1, 0xF8, 0xB1, 0xFD, 0xD5, 0xD7, /* 0x30-0x33 */
+	0xD1, 0xF9, 0x00, 0x00, 0xD5, 0xD6, 0xD5, 0xD8, /* 0x34-0x37 */
+	0xD5, 0xD9, 0xD9, 0xDA, 0xB4, 0xDB, 0xD9, 0xDB, /* 0x38-0x3B */
+	0xD9, 0xDD, 0xB4, 0xDC, 0xB4, 0xDA, 0xD9, 0xDC, /* 0x3C-0x3F */
+	0x00, 0x00, 0xDD, 0xFA, 0xDD, 0xF8, 0xDD, 0xF7, /* 0x40-0x43 */
+	0x00, 0x00, 0xDD, 0xF6, 0xDD, 0xF5, 0xB7, 0xB2, /* 0x44-0x47 */
+	0xDD, 0xF9, 0xBA, 0x70, 0xE2, 0x63, 0xE2, 0x65, /* 0x48-0x4B */
+	0xBA, 0x71, 0xE2, 0x64, 0xBC, 0xDB, 0x00, 0x00, /* 0x4C-0x4F */
+	0xBC, 0xDA, 0xE5, 0xF0, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0xE9, 0xDF, 0xE9, 0xDE, 0xE9, 0xE0, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0xBE, 0xF9, 0x00, 0x00, 0xED, 0x4B, /* 0x58-0x5B */
+	0xC0, 0xD3, 0x00, 0x00, 0xEF, 0xE8, 0xC2, 0x6A, /* 0x5C-0x5F */
+	0xF2, 0x59, 0xC5, 0x77, 0xA4, 0xEE, 0xA5, 0xBF, /* 0x60-0x63 */
+	0xA6, 0xB9, 0xA8, 0x42, 0xAA, 0x5A, 0xAA, 0x5B, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0xAC, 0x6E, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0xD1, 0xFA, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0xB7, 0xB3, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0xD1, 0xBE, 0xFA, /* 0x74-0x77 */
+	0xC2, 0x6B, 0xA4, 0xEF, 0x00, 0x00, 0xA6, 0xBA, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0xCC, 0xEB, 0xAA, 0x5C, /* 0x7C-0x7F */
+	
+	0xCC, 0xEA, 0x00, 0x00, 0xCF, 0x65, 0xAC, 0x6F, /* 0x80-0x83 */
+	0xCF, 0x66, 0x00, 0x00, 0xAC, 0x70, 0x00, 0x00, /* 0x84-0x87 */
+	0xD1, 0xFC, 0xAE, 0xEE, 0xAE, 0xED, 0x00, 0x00, /* 0x88-0x8B */
+	0xD5, 0xDE, 0xD5, 0xDC, 0xD5, 0xDD, 0xD5, 0xDB, /* 0x8C-0x8F */
+	0x00, 0x00, 0xD5, 0xDA, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0xD9, 0xDE, 0xD9, 0xE1, 0xB4, 0xDE, 0xD9, 0xDF, /* 0x94-0x97 */
+	0xB4, 0xDD, 0xD9, 0xE0, 0x00, 0x00, 0xDD, 0xFB, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0x66, 0xE2, 0x67, /* 0x9C-0x9F */
+	0xE2, 0x68, 0x00, 0x00, 0xE5, 0xF3, 0xE5, 0xF2, /* 0xA0-0xA3 */
+	0xBC, 0xDC, 0xE5, 0xF1, 0xE5, 0xF4, 0xE9, 0xE1, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xE2, 0xE9, 0xE3, /* 0xA8-0xAB */
+	0x00, 0x00, 0xED, 0x4C, 0xC0, 0xD4, 0xC2, 0x6C, /* 0xAC-0xAF */
+	0xF2, 0x5A, 0x00, 0x00, 0xC4, 0xE8, 0xC9, 0x5F, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xAC, 0x71, 0xCF, 0x67, 0xAE, 0xEF, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0xB1, 0xFE, 0x00, 0x00, /* 0xB8-0xBB */
+	0xB4, 0xDF, 0xD9, 0xE2, 0x00, 0x00, 0xB7, 0xB5, /* 0xBC-0xBF */
+	0xB7, 0xB4, 0x00, 0x00, 0x00, 0x00, 0xE2, 0x69, /* 0xC0-0xC3 */
+	0xE2, 0x6A, 0xBC, 0xDD, 0xBC, 0xDE, 0xE9, 0xE5, /* 0xC4-0xC7 */
+	0xE9, 0xE4, 0xEF, 0xE9, 0xF7, 0xE3, 0xA4, 0xF0, /* 0xC8-0xCB */
+	0xC9, 0x60, 0xA5, 0xC0, 0x00, 0x00, 0xA8, 0x43, /* 0xCC-0xCF */
+	0xCB, 0x48, 0x00, 0x00, 0xAC, 0x72, 0xB7, 0xB6, /* 0xD0-0xD3 */
+	0xA4, 0xF1, 0x00, 0x00, 0xCF, 0x68, 0xAC, 0x73, /* 0xD4-0xD7 */
+	0xCF, 0x69, 0x00, 0x00, 0xC0, 0xD5, 0xA4, 0xF2, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0xCC, 0xEC, 0x00, 0x00, /* 0xDC-0xDF */
+	0xCF, 0x6A, 0x00, 0x00, 0xD2, 0x42, 0xD2, 0x41, /* 0xE0-0xE3 */
+	0xD1, 0xFE, 0x00, 0x00, 0xD1, 0xFD, 0xD2, 0x43, /* 0xE4-0xE7 */
+	0xD2, 0x40, 0x00, 0x00, 0x00, 0x00, 0xB2, 0x40, /* 0xE8-0xEB */
+	0xB2, 0x41, 0x00, 0x00, 0x00, 0x00, 0xB4, 0xE0, /* 0xEC-0xEF */
+	0xD9, 0xE3, 0x00, 0x00, 0xD9, 0xE4, 0xD9, 0xE5, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDE, 0x41, /* 0xF4-0xF7 */
+	0xDE, 0x42, 0xDE, 0x40, 0x00, 0x00, 0xDD, 0xFD, /* 0xF8-0xFB */
+	0xDD, 0xFE, 0xB7, 0xB7, 0xE2, 0x6B, 0xE5, 0xF7, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_6C[512] = {
+	0xE5, 0xF6, 0xE5, 0xF5, 0xE5, 0xF8, 0xE9, 0xE7, /* 0x00-0x03 */
+	0xE9, 0xE6, 0xBE, 0xFB, 0xE9, 0xE8, 0x00, 0x00, /* 0x04-0x07 */
+	0xC0, 0xD6, 0xED, 0x4D, 0x00, 0x00, 0xEF, 0xEA, /* 0x08-0x0B */
+	0xF2, 0x5B, 0xF6, 0xE7, 0x00, 0x00, 0xA4, 0xF3, /* 0x0C-0x0F */
+	0xA5, 0xC2, 0xA5, 0xC1, 0x00, 0x00, 0xAA, 0x5D, /* 0x10-0x13 */
+	0xC9, 0x61, 0xC9, 0x7E, 0xA6, 0xBB, 0x00, 0x00, /* 0x14-0x17 */
+	0xC9, 0xF7, 0xCB, 0x49, 0xCB, 0x4A, 0xAA, 0x5E, /* 0x18-0x1B */
+	0x00, 0x00, 0xCC, 0xED, 0x00, 0x00, 0xAC, 0x74, /* 0x1C-0x1F */
+	0xCF, 0x6B, 0xCF, 0x6C, 0x00, 0x00, 0xAE, 0xF0, /* 0x20-0x23 */
+	0xAE, 0xF4, 0xD2, 0x44, 0xAE, 0xF3, 0xAE, 0xF1, /* 0x24-0x27 */
+	0xAE, 0xF2, 0x00, 0x00, 0xD5, 0xDF, 0xB2, 0x42, /* 0x28-0x2B */
+	0xB4, 0xE3, 0x00, 0x00, 0xB4, 0xE1, 0xB4, 0xE2, /* 0x2C-0x2F */
+	0xD9, 0xE6, 0x00, 0x00, 0x00, 0x00, 0xBA, 0x72, /* 0x30-0x33 */
+	0xA4, 0xF4, 0x00, 0x00, 0xC9, 0xA1, 0x00, 0x00, /* 0x34-0x37 */
+	0xA5, 0xC3, 0x00, 0x00, 0x00, 0x00, 0xC9, 0xA4, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0xA5, 0xC6, 0xC9, 0xA3, /* 0x3C-0x3F */
+	0xA5, 0xC5, 0xA5, 0xC4, 0xA8, 0x44, 0xC9, 0xA2, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xC9, 0xF8, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0xC9, 0xFC, 0xC9, 0xFE, /* 0x48-0x4B */
+	0xCA, 0x40, 0xA6, 0xC5, 0xA6, 0xC6, 0xC9, 0xFB, /* 0x4C-0x4F */
+	0xA6, 0xC1, 0x00, 0x00, 0xC9, 0xF9, 0x00, 0x00, /* 0x50-0x53 */
+	0xC9, 0xFD, 0xA6, 0xC2, 0x00, 0x00, 0xA6, 0xBD, /* 0x54-0x57 */
+	0x00, 0x00, 0xA6, 0xBE, 0x00, 0x00, 0xA6, 0xC4, /* 0x58-0x5B */
+	0xC9, 0xFA, 0xA6, 0xBC, 0xA8, 0x45, 0xA6, 0xBF, /* 0x5C-0x5F */
+	0xA6, 0xC0, 0xA6, 0xC3, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0xCB, 0x5B, 0xCB, 0x59, 0xCB, 0x4C, /* 0x64-0x67 */
+	0xA8, 0x51, 0xCB, 0x53, 0xA8, 0x4C, 0xCB, 0x4D, /* 0x68-0x6B */
+	0x00, 0x00, 0xCB, 0x55, 0x00, 0x00, 0xCB, 0x52, /* 0x6C-0x6F */
+	0xA8, 0x4F, 0xCB, 0x51, 0xA8, 0x56, 0xCB, 0x5A, /* 0x70-0x73 */
+	0xA8, 0x58, 0x00, 0x00, 0xA8, 0x5A, 0x00, 0x00, /* 0x74-0x77 */
+	0xCB, 0x4B, 0x00, 0x00, 0xA8, 0x4D, 0xCB, 0x5C, /* 0x78-0x7B */
+	0x00, 0x00, 0xA8, 0x54, 0xA8, 0x57, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xCD, 0x45, 0xA8, 0x47, 0xA8, 0x5E, 0xA8, 0x55, /* 0x80-0x83 */
+	0xCB, 0x4E, 0xA8, 0x4A, 0xA8, 0x59, 0xCB, 0x56, /* 0x84-0x87 */
+	0xA8, 0x48, 0xA8, 0x49, 0xCD, 0x43, 0xCB, 0x4F, /* 0x88-0x8B */
+	0xA8, 0x50, 0xA8, 0x5B, 0xCB, 0x5D, 0xCB, 0x50, /* 0x8C-0x8F */
+	0xA8, 0x4E, 0x00, 0x00, 0xA8, 0x53, 0xCC, 0xEE, /* 0x90-0x93 */
+	0xA8, 0x5C, 0xCB, 0x57, 0xA8, 0x52, 0x00, 0x00, /* 0x94-0x97 */
+	0xA8, 0x5D, 0xA8, 0x46, 0xCB, 0x54, 0xA8, 0x4B, /* 0x98-0x9B */
+	0xCB, 0x58, 0xCD, 0x44, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xAA, 0x6A, /* 0xA8-0xAB */
+	0xAA, 0x7A, 0xCC, 0xF5, 0xAA, 0x71, 0x00, 0x00, /* 0xAC-0xAF */
+	0xCD, 0x4B, 0xAA, 0x62, 0x00, 0x00, 0xAA, 0x65, /* 0xB0-0xB3 */
+	0xCD, 0x42, 0x00, 0x00, 0xCC, 0xF3, 0xCC, 0xF7, /* 0xB4-0xB7 */
+	0xAA, 0x6D, 0xAA, 0x6F, 0xCC, 0xFA, 0xAA, 0x76, /* 0xB8-0xBB */
+	0xAA, 0x68, 0xAA, 0x66, 0xAA, 0x67, 0xAA, 0x75, /* 0xBC-0xBF */
+	0xCD, 0x47, 0xAA, 0x70, 0xCC, 0xF9, 0xCC, 0xFB, /* 0xC0-0xC3 */
+	0xAA, 0x6E, 0xAA, 0x73, 0xCC, 0xFC, 0xCD, 0x4A, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xAC, 0x75, 0xAA, 0x79, 0x00, 0x00, /* 0xC8-0xCB */
+	0xAA, 0x63, 0xCD, 0x49, 0x00, 0x00, 0xCD, 0x4D, /* 0xCC-0xCF */
+	0xCC, 0xF8, 0xCD, 0x4F, 0xCD, 0x40, 0xAA, 0x6C, /* 0xD0-0xD3 */
+	0xCC, 0xF4, 0xAA, 0x6B, 0xAA, 0x7D, 0xAA, 0x72, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xCC, 0xF2, 0xCF, 0x75, 0xAA, 0x78, /* 0xD8-0xDB */
+	0xAA, 0x7C, 0xCD, 0x41, 0xCD, 0x46, 0x00, 0x00, /* 0xDC-0xDF */
+	0xAA, 0x7E, 0xAA, 0x77, 0xAA, 0x69, 0xAA, 0x5F, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xAA, 0x64, 0x00, 0x00, 0xCC, 0xF6, /* 0xE4-0xE7 */
+	0xAA, 0x60, 0xCD, 0x4E, 0x00, 0x00, 0xCC, 0xF0, /* 0xE8-0xEB */
+	0xCC, 0xEF, 0xCC, 0xFD, 0xCC, 0xF1, 0xAA, 0x7B, /* 0xEC-0xEF */
+	0xAE, 0xF5, 0xAA, 0x74, 0xCC, 0xFE, 0xAA, 0x61, /* 0xF0-0xF3 */
+	0x00, 0x00, 0xAC, 0xA6, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xCD, 0x4C, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_6D[512] = {
+	0xCF, 0x7C, 0xCF, 0xA1, 0x00, 0x00, 0xCF, 0xA4, /* 0x00-0x03 */
+	0xCF, 0x77, 0x00, 0x00, 0x00, 0x00, 0xCF, 0xA7, /* 0x04-0x07 */
+	0xCF, 0xAA, 0xCF, 0xAC, 0xCF, 0x74, 0xAC, 0x76, /* 0x08-0x0B */
+	0xAC, 0x7B, 0xD2, 0x49, 0xAC, 0xAD, 0xCF, 0xA5, /* 0x0C-0x0F */
+	0xCF, 0xAD, 0xCF, 0x7B, 0xCF, 0x73, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xD2, 0x64, 0xAC, 0x7E, /* 0x14-0x17 */
+	0xCF, 0xA2, 0xCF, 0x78, 0xCF, 0x7A, 0xAC, 0xA5, /* 0x18-0x1B */
+	0x00, 0x00, 0xCF, 0x7D, 0xAC, 0x7D, 0xCF, 0x70, /* 0x1C-0x1F */
+	0xCF, 0xA8, 0x00, 0x00, 0xCF, 0xAB, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0xAC, 0x7A, 0x00, 0x00, 0xAC, 0xA8, /* 0x24-0x27 */
+	0xCF, 0x6D, 0xAC, 0xAA, 0xAC, 0x78, 0xAC, 0xAE, /* 0x28-0x2B */
+	0xCF, 0xA9, 0xCF, 0x6F, 0xAC, 0xAB, 0xD2, 0x5E, /* 0x2C-0x2F */
+	0xCD, 0x48, 0xAC, 0x7C, 0xAC, 0x77, 0xCF, 0x76, /* 0x30-0x33 */
+	0xCF, 0x6E, 0xAC, 0xAC, 0xAC, 0xA4, 0xCF, 0xA3, /* 0x34-0x37 */
+	0xAC, 0xA9, 0xAC, 0xA7, 0xCF, 0x79, 0xAC, 0xA1, /* 0x38-0x3B */
+	0xCF, 0x71, 0xAC, 0xA2, 0xAC, 0xA3, 0xCF, 0x72, /* 0x3C-0x3F */
+	0xCF, 0xA6, 0xAC, 0x79, 0xCF, 0x7E, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0xD2, 0x4C, 0xAE, 0xFD, 0xAF, 0x43, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0xD2, 0x55, 0xD2, 0x5B, /* 0x5C-0x5F */
+	0xD2, 0x57, 0xD2, 0x4A, 0xD2, 0x4D, 0xD2, 0x46, /* 0x60-0x63 */
+	0xD2, 0x47, 0xAF, 0x4A, 0xAE, 0xFA, 0xD2, 0x56, /* 0x64-0x67 */
+	0xD2, 0x5F, 0xAF, 0x45, 0xAE, 0xF6, 0x00, 0x00, /* 0x68-0x6B */
+	0xAF, 0x40, 0xD2, 0x4E, 0xAF, 0x42, 0xD2, 0x4F, /* 0x6C-0x6F */
+	0xD2, 0x59, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0xAF, 0x44, 0xD2, 0x68, 0xD2, 0x48, 0xAE, 0xFC, /* 0x74-0x77 */
+	0xAE, 0xFB, 0xAF, 0x48, 0xD2, 0x45, 0xD2, 0x66, /* 0x78-0x7B */
+	0xD2, 0x5A, 0xD2, 0x67, 0xD2, 0x61, 0xD2, 0x53, /* 0x7C-0x7F */
+	
+	0xD2, 0x62, 0x00, 0x00, 0xD2, 0x5C, 0xD2, 0x65, /* 0x80-0x83 */
+	0xD2, 0x63, 0xAF, 0x49, 0xD2, 0x54, 0xAE, 0xF9, /* 0x84-0x87 */
+	0xAE, 0xF8, 0xAF, 0x41, 0xAF, 0x47, 0xD2, 0x60, /* 0x88-0x8B */
+	0xAF, 0x46, 0xD2, 0x51, 0xB2, 0x43, 0x00, 0x00, /* 0x8C-0x8F */
+	0xD2, 0x69, 0xD2, 0x50, 0xD2, 0x4B, 0xAE, 0xFE, /* 0x90-0x93 */
+	0xAF, 0x4B, 0xAE, 0xF7, 0x00, 0x00, 0xD2, 0x58, /* 0x94-0x97 */
+	0xD2, 0x5D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0xB2, 0x65, 0xD5, 0xE1, /* 0xA8-0xAB */
+	0xD5, 0xE5, 0x00, 0x00, 0xB2, 0x52, 0xB2, 0x50, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0xB2, 0x47, 0xD5, 0xE3, /* 0xB0-0xB3 */
+	0xD5, 0xE2, 0xB2, 0x5B, 0x00, 0x00, 0xD5, 0xE8, /* 0xB4-0xB7 */
+	0xB2, 0x55, 0x00, 0x00, 0xD5, 0xFA, 0xD6, 0x47, /* 0xB8-0xBB */
+	0xB2, 0x44, 0xD5, 0xF7, 0xD5, 0xF0, 0xB2, 0x67, /* 0xBC-0xBF */
+	0xD5, 0xE0, 0x00, 0x00, 0xD5, 0xFC, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xB2, 0x64, 0xB2, 0x58, 0xB2, 0x63, 0xB2, 0x4E, /* 0xC4-0xC7 */
+	0xD5, 0xEC, 0xD5, 0xFE, 0xD5, 0xF6, 0xB2, 0x4F, /* 0xC8-0xCB */
+	0xB2, 0x49, 0xD6, 0x45, 0x00, 0x00, 0xD5, 0xFD, /* 0xCC-0xCF */
+	0xD6, 0x40, 0xB2, 0x51, 0xB2, 0x59, 0xD6, 0x42, /* 0xD0-0xD3 */
+	0xD5, 0xEA, 0xD5, 0xFB, 0xD5, 0xEF, 0xD6, 0x44, /* 0xD4-0xD7 */
+	0xB2, 0x5E, 0xB2, 0x46, 0xB2, 0x5C, 0xD5, 0xF4, /* 0xD8-0xDB */
+	0xD5, 0xF2, 0xD5, 0xF3, 0xB2, 0x53, 0xD5, 0xEE, /* 0xDC-0xDF */
+	0xD5, 0xED, 0xB2, 0x48, 0xD5, 0xE7, 0xD6, 0x46, /* 0xE0-0xE3 */
+	0xB2, 0x4A, 0xD5, 0xF1, 0xB2, 0x68, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xB2, 0x62, 0xD5, 0xE6, 0xB2, 0x5F, 0xB2, 0x5D, /* 0xE8-0xEB */
+	0xB2, 0x66, 0xD5, 0xF8, 0xB2, 0x61, 0xD2, 0x52, /* 0xEC-0xEF */
+	0xD5, 0xF9, 0xB2, 0x60, 0xD6, 0x41, 0xB2, 0x45, /* 0xF0-0xF3 */
+	0xD5, 0xF5, 0xB2, 0x57, 0xD5, 0xE9, 0xB2, 0x56, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xB2, 0x54, 0xB2, 0x4C, 0xB2, 0x4B, /* 0xF8-0xFB */
+	0xD9, 0xE7, 0xD6, 0x43, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_6E[512] = {
+	0xD5, 0xEB, 0x00, 0x00, 0x00, 0x00, 0xD9, 0xFC, /* 0x00-0x03 */
+	0x00, 0x00, 0xB2, 0x4D, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0xB5, 0x41, 0xB2, 0x5A, 0xB4, 0xEE, /* 0x18-0x1B */
+	0xD9, 0xF6, 0xB4, 0xFC, 0x00, 0x00, 0xD9, 0xEA, /* 0x1C-0x1F */
+	0xB4, 0xEB, 0xB4, 0xE7, 0xDA, 0x49, 0xB4, 0xED, /* 0x20-0x23 */
+	0xB4, 0xF1, 0xB4, 0xEC, 0xB4, 0xF5, 0xDA, 0x4D, /* 0x24-0x27 */
+	0xDA, 0x44, 0x00, 0x00, 0x00, 0x00, 0xD9, 0xF1, /* 0x28-0x2B */
+	0xB4, 0xFA, 0xB4, 0xF4, 0xD9, 0xFD, 0xB4, 0xE4, /* 0x2C-0x2F */
+	0xDA, 0x4A, 0xDA, 0x43, 0xB4, 0xE8, 0xD9, 0xF7, /* 0x30-0x33 */
+	0xB4, 0xF7, 0xDA, 0x55, 0xDA, 0x56, 0x00, 0x00, /* 0x34-0x37 */
+	0xB4, 0xE5, 0xDA, 0x48, 0xB4, 0xF9, 0xD9, 0xFB, /* 0x38-0x3B */
+	0xD9, 0xED, 0xD9, 0xEE, 0xB4, 0xFD, 0xD9, 0xF2, /* 0x3C-0x3F */
+	0xD9, 0xF9, 0xD9, 0xF3, 0x00, 0x00, 0xB4, 0xFB, /* 0x40-0x43 */
+	0xB5, 0x44, 0xD9, 0xEF, 0xD9, 0xE8, 0xD9, 0xE9, /* 0x44-0x47 */
+	0x00, 0x00, 0xD9, 0xEB, 0xB4, 0xEA, 0xD9, 0xF8, /* 0x48-0x4B */
+	0x00, 0x00, 0xB4, 0xF8, 0xB5, 0x42, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0xD9, 0xFA, 0xDA, 0x53, 0xDA, 0x4B, /* 0x50-0x53 */
+	0xB4, 0xE6, 0xDA, 0x51, 0xB4, 0xF2, 0x00, 0x00, /* 0x54-0x57 */
+	0xB4, 0xF0, 0x00, 0x00, 0xDA, 0x57, 0xB4, 0xEF, /* 0x58-0x5B */
+	0xDA, 0x41, 0xD9, 0xF4, 0xD9, 0xFE, 0xB5, 0x47, /* 0x5C-0x5F */
+	0xDA, 0x45, 0xDA, 0x42, 0xD9, 0xF0, 0xB5, 0x43, /* 0x60-0x63 */
+	0xDA, 0x4F, 0xDA, 0x4C, 0xDA, 0x54, 0xB4, 0xE9, /* 0x64-0x67 */
+	0xDA, 0x40, 0xB5, 0x46, 0x00, 0x00, 0xDA, 0x47, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0xB4, 0xF3, 0xB4, 0xF6, /* 0x6C-0x6F */
+	0x00, 0x00, 0xDA, 0x46, 0xB5, 0x45, 0xD9, 0xF5, /* 0x70-0x73 */
+	0xD5, 0xE4, 0x00, 0x00, 0x00, 0x00, 0xDA, 0x50, /* 0x74-0x77 */
+	0xDA, 0x4E, 0xDA, 0x52, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0xD9, 0xEC, 0xB5, 0x40, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0xDE, 0x61, 0xDE, 0x60, 0xDE, 0x46, /* 0x8C-0x8F */
+	0xB7, 0xBD, 0x00, 0x00, 0xDE, 0x5F, 0xDE, 0x49, /* 0x90-0x93 */
+	0xDE, 0x4A, 0x00, 0x00, 0xB7, 0xC7, 0xDE, 0x68, /* 0x94-0x97 */
+	0xB7, 0xC2, 0xDE, 0x5E, 0x00, 0x00, 0xDE, 0x43, /* 0x98-0x9B */
+	0xB7, 0xC8, 0xB7, 0xBE, 0xDE, 0x52, 0xDE, 0x48, /* 0x9C-0x9F */
+	0xDE, 0x4B, 0xDE, 0x63, 0xB7, 0xB8, 0xDE, 0x6A, /* 0xA0-0xA3 */
+	0xDE, 0x62, 0xB7, 0xC1, 0xDE, 0x57, 0xB7, 0xCC, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0xB7, 0xCB, 0xB7, 0xC5, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0xDE, 0x69, 0xB7, 0xB9, /* 0xAC-0xAF */
+	0xDE, 0x55, 0xDE, 0x4C, 0xDE, 0x59, 0xDE, 0x65, /* 0xB0-0xB3 */
+	0xB7, 0xCD, 0x00, 0x00, 0xB7, 0xBB, 0xDE, 0x54, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xDE, 0x4D, 0xB7, 0xC4, 0x00, 0x00, /* 0xB8-0xBB */
+	0xB7, 0xC3, 0xDE, 0x50, 0xDE, 0x5A, 0xDE, 0x64, /* 0xBC-0xBF */
+	0xDE, 0x47, 0xDE, 0x51, 0xB7, 0xBC, 0xDE, 0x5B, /* 0xC0-0xC3 */
+	0xB7, 0xC9, 0xB7, 0xC0, 0xDE, 0x4E, 0xB7, 0xBF, /* 0xC4-0xC7 */
+	0xDE, 0x45, 0xDE, 0x53, 0xDE, 0x67, 0xB4, 0xFE, /* 0xC8-0xCB */
+	0xBA, 0xB0, 0xDE, 0x56, 0xE2, 0x6C, 0xDE, 0x58, /* 0xCC-0xCF */
+	0xDE, 0x66, 0xB7, 0xC6, 0xDE, 0x4F, 0xB7, 0xBA, /* 0xD0-0xD3 */
+	0xB7, 0xCA, 0xBC, 0xF0, 0xDE, 0x44, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xDE, 0x5D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0xDE, 0x5C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xAA, /* 0xE8-0xEB */
+	0xBA, 0xAD, 0xE2, 0x7D, 0xE2, 0xA4, 0xBA, 0xA2, /* 0xEC-0xEF */
+	0x00, 0x00, 0xE2, 0x6E, 0xBA, 0xAF, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xBA, 0x77, 0xE2, 0x6D, 0xE2, 0xB0, 0xBA, 0xB1, /* 0xF4-0xF7 */
+	0xE2, 0x71, 0xE2, 0xA3, 0x00, 0x00, 0xE2, 0x73, /* 0xF8-0xFB */
+	0xE2, 0xB3, 0xE2, 0xAF, 0xBA, 0x75, 0xBA, 0xA1, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_6F[512] = {
+	0xE6, 0x53, 0xBA, 0xAE, 0xBA, 0x7D, 0xE2, 0x6F, /* 0x00-0x03 */
+	0x00, 0x00, 0xE2, 0xAE, 0xBA, 0xA3, 0xE2, 0xAB, /* 0x04-0x07 */
+	0xE2, 0xB8, 0xE2, 0x75, 0xE2, 0x7E, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0xE2, 0xB6, 0xE2, 0xAC, 0xBA, 0x7C, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0x7C, 0xBA, 0x76, /* 0x10-0x13 */
+	0xBA, 0x74, 0xBA, 0xA8, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0xE2, 0x7A, 0xE2, 0x77, 0xE2, 0x78, 0x00, 0x00, /* 0x18-0x1B */
+	0xE2, 0xB2, 0x00, 0x00, 0xE2, 0xB7, 0xE2, 0xB5, /* 0x1C-0x1F */
+	0xBA, 0x7A, 0xE2, 0xB9, 0xBA, 0x7E, 0xBA, 0xA7, /* 0x20-0x23 */
+	0x00, 0x00, 0xE2, 0x70, 0xE5, 0xFA, 0xE2, 0x79, /* 0x24-0x27 */
+	0x00, 0x00, 0xBA, 0x78, 0xBA, 0xAC, 0xBA, 0xA9, /* 0x28-0x2B */
+	0xBA, 0x7B, 0xE2, 0xA5, 0xE2, 0x74, 0xBA, 0xAA, /* 0x2C-0x2F */
+	0xE2, 0xA7, 0xBA, 0xA4, 0xBA, 0xA6, 0xBA, 0x73, /* 0x30-0x33 */
+	0x00, 0x00, 0xE2, 0xA9, 0xE2, 0xA1, 0xE2, 0x72, /* 0x34-0x37 */
+	0xBA, 0xA5, 0xE2, 0xB1, 0xE2, 0xB4, 0xE2, 0x7B, /* 0x38-0x3B */
+	0xE2, 0xA8, 0x00, 0x00, 0xBA, 0x79, 0xBC, 0xDF, /* 0x3C-0x3F */
+	0xE2, 0xA6, 0xE5, 0xF9, 0x00, 0x00, 0xE2, 0xAD, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0x76, 0xE6, 0x44, /* 0x4C-0x4F */
+	0xE6, 0x4E, 0xBC, 0xE2, 0xE6, 0x4D, 0xE6, 0x59, /* 0x50-0x53 */
+	0xBC, 0xE4, 0xE6, 0x4B, 0x00, 0x00, 0xE6, 0x4F, /* 0x54-0x57 */
+	0xBC, 0xEF, 0x00, 0x00, 0xE6, 0x46, 0xBC, 0xE7, /* 0x58-0x5B */
+	0x00, 0x00, 0xE6, 0x52, 0xE9, 0xF0, 0xBC, 0xF3, /* 0x5C-0x5F */
+	0xBC, 0xF2, 0xE6, 0x54, 0xE6, 0x43, 0xE6, 0x5E, /* 0x60-0x63 */
+	0xBC, 0xED, 0x00, 0x00, 0xBC, 0xE3, 0xE6, 0x57, /* 0x64-0x67 */
+	0x00, 0x00, 0xE6, 0x5B, 0xE6, 0x60, 0xE6, 0x55, /* 0x68-0x6B */
+	0xE6, 0x49, 0xBC, 0xE6, 0xBC, 0xE9, 0xBC, 0xF1, /* 0x6C-0x6F */
+	0xBC, 0xEC, 0x00, 0x00, 0xE6, 0x4C, 0xE2, 0xA2, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0x48, 0xE6, 0x5F, /* 0x74-0x77 */
+	0xBC, 0xE8, 0x00, 0x00, 0xBC, 0xEB, 0xE6, 0x61, /* 0x78-0x7B */
+	0xBC, 0xE0, 0xE6, 0x56, 0xE5, 0xFB, 0xE6, 0x5C, /* 0x7C-0x7F */
+	
+	0xC0, 0xDF, 0x00, 0x00, 0xE6, 0x4A, 0x00, 0x00, /* 0x80-0x83 */
+	0xBC, 0xE1, 0xE6, 0x45, 0xBC, 0xE5, 0xE5, 0xFC, /* 0x84-0x87 */
+	0xBA, 0xAB, 0xE6, 0x41, 0x00, 0x00, 0xE6, 0x5A, /* 0x88-0x8B */
+	0xE6, 0x42, 0xE6, 0x40, 0xBC, 0xEA, 0x00, 0x00, /* 0x8C-0x8F */
+	0xE6, 0x58, 0x00, 0x00, 0xE5, 0xFE, 0xE6, 0x51, /* 0x90-0x93 */
+	0xE6, 0x50, 0xE6, 0x5D, 0xE6, 0x47, 0xBC, 0xEE, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0xE9, 0xF3, 0x00, 0x00, /* 0x9C-0x9F */
+	0xBF, 0x49, 0xBE, 0xFE, 0xEA, 0x40, 0xE9, 0xEB, /* 0xA0-0xA3 */
+	0xBF, 0x41, 0xE9, 0xF7, 0xBF, 0x48, 0xBF, 0x43, /* 0xA4-0xA7 */
+	0xE9, 0xF5, 0xED, 0x4F, 0xE9, 0xFB, 0xEA, 0x42, /* 0xA8-0xAB */
+	0xE9, 0xFA, 0xE9, 0xE9, 0xE9, 0xF8, 0xEA, 0x44, /* 0xAC-0xAF */
+	0xEA, 0x46, 0xBE, 0xFD, 0xEA, 0x45, 0xBF, 0x44, /* 0xB0-0xB3 */
+	0xBF, 0x4A, 0x00, 0x00, 0xBF, 0x47, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xE9, 0xFE, 0xBF, 0x46, 0xE9, 0xF9, 0x00, 0x00, /* 0xB8-0xBB */
+	0xE9, 0xED, 0xE9, 0xF2, 0x00, 0x00, 0xE9, 0xFD, /* 0xBC-0xBF */
+	0xBF, 0x45, 0xBF, 0x42, 0xBE, 0xFC, 0xBF, 0x40, /* 0xC0-0xC3 */
+	0xE9, 0xF1, 0x00, 0x00, 0xE5, 0xFD, 0xE9, 0xEC, /* 0xC4-0xC7 */
+	0xE9, 0xEF, 0xEA, 0x41, 0xE9, 0xF4, 0xE9, 0xEA, /* 0xC8-0xCB */
+	0xED, 0x4E, 0xEA, 0x43, 0xE9, 0xEE, 0xE9, 0xFC, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xED, 0x51, 0xC0, 0xE3, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xC0, 0xD7, 0x00, 0x00, 0x00, 0x00, 0xC0, 0xDB, /* 0xD8-0xDB */
+	0xED, 0x53, 0xED, 0x59, 0xED, 0x57, 0xC0, 0xD9, /* 0xDC-0xDF */
+	0xC0, 0xDA, 0xC0, 0xE1, 0xED, 0x5A, 0xED, 0x52, /* 0xE0-0xE3 */
+	0xC0, 0xDC, 0x00, 0x00, 0xED, 0x56, 0xED, 0x55, /* 0xE4-0xE7 */
+	0xED, 0x5B, 0xC0, 0xE2, 0x00, 0x00, 0xC0, 0xDD, /* 0xE8-0xEB */
+	0xC0, 0xE0, 0xED, 0x54, 0xC0, 0xE4, 0xC0, 0xDE, /* 0xEC-0xEF */
+	0xC0, 0xE5, 0xC0, 0xD8, 0xED, 0x58, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xED, 0x50, 0x00, 0x00, 0x00, 0x00, 0xEF, 0xF7, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0xC2, 0x71, 0xEF, 0xF4, /* 0xF8-0xFB */
+	0xEF, 0xF6, 0x00, 0x00, 0xC2, 0x6F, 0xEF, 0xF2, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_70[512] = {
+	0xEF, 0xF3, 0xEF, 0xEE, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0xE9, 0xF6, 0xEF, 0xEF, 0xC2, 0x70, 0xEF, 0xEB, /* 0x04-0x07 */
+	0x00, 0x00, 0xC2, 0x6D, 0xEF, 0xF8, 0xC2, 0x6E, /* 0x08-0x0B */
+	0xEF, 0xEC, 0xEF, 0xED, 0xEF, 0xF1, 0xC2, 0x73, /* 0x0C-0x0F */
+	0x00, 0x00, 0xC2, 0x72, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0xEF, 0xF0, 0xC3, 0x78, 0xF2, 0x5F, 0xF2, 0x65, /* 0x14-0x17 */
+	0xC3, 0x79, 0xF2, 0x5C, 0xC3, 0x76, 0xC3, 0x73, /* 0x18-0x1B */
+	0xF2, 0x67, 0xC3, 0x77, 0x00, 0x00, 0xC3, 0x74, /* 0x1C-0x1F */
+	0xF2, 0x5E, 0xF2, 0x61, 0xF2, 0x62, 0xF2, 0x63, /* 0x20-0x23 */
+	0xF2, 0x66, 0x00, 0x00, 0xEF, 0xF5, 0xF2, 0x5D, /* 0x24-0x27 */
+	0xC3, 0x75, 0xF2, 0x64, 0xF2, 0x68, 0xF2, 0x60, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF4, 0x5D, /* 0x2C-0x2F */
+	0xC4, 0x6A, 0xF4, 0x60, 0xC4, 0x6B, 0xF4, 0x68, /* 0x30-0x33 */
+	0xF4, 0x5F, 0xF4, 0x5C, 0x00, 0x00, 0xF4, 0x5E, /* 0x34-0x37 */
+	0xF4, 0x62, 0xF4, 0x65, 0xF4, 0x64, 0xF4, 0x67, /* 0x38-0x3B */
+	0xF4, 0x5B, 0x00, 0x00, 0xC4, 0x69, 0xF4, 0x63, /* 0x3C-0x3F */
+	0xF4, 0x66, 0xF4, 0x69, 0xF4, 0x61, 0xF5, 0xD3, /* 0x40-0x43 */
+	0xF5, 0xD4, 0xF5, 0xD8, 0xF5, 0xD9, 0x00, 0x00, /* 0x44-0x47 */
+	0xF5, 0xD6, 0xF5, 0xD7, 0xF5, 0xD5, 0x00, 0x00, /* 0x48-0x4B */
+	0xC4, 0xE9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0xC5, 0x78, 0xF6, 0xEB, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0xF6, 0xE8, 0xF6, 0xE9, 0xF6, 0xEA, /* 0x54-0x57 */
+	0xC5, 0x79, 0x00, 0x00, 0xF7, 0xE5, 0xF7, 0xE4, /* 0x58-0x5B */
+	0x00, 0x00, 0xF8, 0xAF, 0xC5, 0xF4, 0xF8, 0xAD, /* 0x5C-0x5F */
+	0xF8, 0xB0, 0xF8, 0xAE, 0xF8, 0xF5, 0xC6, 0x57, /* 0x60-0x63 */
+	0xC6, 0x65, 0xF9, 0xA3, 0xF9, 0x6C, 0x00, 0x00, /* 0x64-0x67 */
+	0xF9, 0xA2, 0xF9, 0xD0, 0xF9, 0xD1, 0xA4, 0xF5, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0xA6, 0xC7, 0xCA, 0x41, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0xCB, 0x5E, 0x00, 0x00, 0xA8, 0x5F, 0x00, 0x00, /* 0x74-0x77 */
+	0xA8, 0x62, 0x00, 0x00, 0xCB, 0x5F, 0x00, 0x00, /* 0x78-0x7B */
+	0xA8, 0x60, 0xA8, 0x61, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0xCD, 0x58, 0xCD, 0x5A, /* 0x80-0x83 */
+	0xCD, 0x55, 0xCD, 0x52, 0xCD, 0x54, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0xAA, 0xA4, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0xAA, 0xA2, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0xCD, 0x56, 0xAA, 0xA3, 0xCD, 0x53, /* 0x90-0x93 */
+	0xCD, 0x50, 0xAA, 0xA1, 0xCD, 0x57, 0x00, 0x00, /* 0x94-0x97 */
+	0xCD, 0x51, 0xAA, 0xA5, 0xCD, 0x59, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCF, 0xAF, /* 0x9C-0x9F */
+	0x00, 0x00, 0xCF, 0xB3, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xAC, 0xB7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0xCF, 0xB6, 0x00, 0x00, 0xAC, 0xAF, /* 0xA8-0xAB */
+	0xAC, 0xB2, 0xAC, 0xB4, 0xAC, 0xB6, 0xAC, 0xB3, /* 0xAC-0xAF */
+	0xCF, 0xB2, 0xCF, 0xB1, 0x00, 0x00, 0xAC, 0xB1, /* 0xB0-0xB3 */
+	0xCF, 0xB4, 0xCF, 0xB5, 0x00, 0x00, 0xCF, 0xAE, /* 0xB4-0xB7 */
+	0xAC, 0xB5, 0x00, 0x00, 0xAC, 0xB0, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0xCF, 0xB0, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xD2, 0x77, 0xD2, 0x78, 0xD2, 0x79, /* 0xC4-0xC7 */
+	0xAF, 0x50, 0x00, 0x00, 0xAF, 0x4C, 0xD2, 0x6E, /* 0xC8-0xCB */
+	0x00, 0x00, 0xD2, 0x76, 0xD2, 0x7B, 0xAF, 0x51, /* 0xCC-0xCF */
+	0x00, 0x00, 0xD2, 0x6C, 0xD2, 0x72, 0xD2, 0x6B, /* 0xD0-0xD3 */
+	0xD2, 0x75, 0x00, 0x00, 0x00, 0x00, 0xD2, 0x71, /* 0xD4-0xD7 */
+	0xAF, 0x4D, 0xAF, 0x4F, 0xD2, 0x7A, 0x00, 0x00, /* 0xD8-0xDB */
+	0xD2, 0x6A, 0xD2, 0x6D, 0xD2, 0x73, 0x00, 0x00, /* 0xDC-0xDF */
+	0xD2, 0x74, 0xD2, 0x7C, 0xD2, 0x70, 0x00, 0x00, /* 0xE0-0xE3 */
+	0xAF, 0x4E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB2, 0x6D, /* 0xEC-0xEF */
+	0xD6, 0x4E, 0x00, 0x00, 0x00, 0x00, 0xD6, 0x50, /* 0xF0-0xF3 */
+	0xD6, 0x4C, 0x00, 0x00, 0xD6, 0x58, 0xD6, 0x4A, /* 0xF4-0xF7 */
+	0xD6, 0x57, 0xB2, 0x69, 0xD6, 0x48, 0xDA, 0x5B, /* 0xF8-0xFB */
+	0xD6, 0x52, 0xB2, 0x6C, 0x00, 0x00, 0xD6, 0x53, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_71[512] = {
+	0xD6, 0x56, 0x00, 0x00, 0xD6, 0x5A, 0x00, 0x00, /* 0x00-0x03 */
+	0xD6, 0x4F, 0x00, 0x00, 0xD6, 0x54, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xB2, 0x6A, 0xB2, 0x6B, 0xD6, 0x59, /* 0x08-0x0B */
+	0xD6, 0x4D, 0xD6, 0x49, 0xD6, 0x5B, 0x00, 0x00, /* 0x0C-0x0F */
+	0xD6, 0x51, 0x00, 0x00, 0x00, 0x00, 0xD6, 0x55, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD6, 0x4B, /* 0x14-0x17 */
+	0x00, 0x00, 0xB5, 0x48, 0xB5, 0x49, 0xDA, 0x65, /* 0x18-0x1B */
+	0xB5, 0x4F, 0x00, 0x00, 0xDA, 0x59, 0xDA, 0x62, /* 0x1C-0x1F */
+	0xDA, 0x58, 0xB5, 0x4C, 0xDA, 0x60, 0xDA, 0x5E, /* 0x20-0x23 */
+	0x00, 0x00, 0xDA, 0x5F, 0xB5, 0x4A, 0x00, 0x00, /* 0x24-0x27 */
+	0xDA, 0x63, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0xDA, 0x5C, 0xDA, 0x5A, /* 0x2C-0x2F */
+	0xB5, 0x4B, 0xDA, 0x5D, 0xDA, 0x61, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0xB5, 0x4D, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xDA, 0x64, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0xDE, 0x70, 0xDE, 0x77, 0xDE, 0x79, /* 0x40-0x43 */
+	0xDE, 0xA1, 0x00, 0x00, 0xB7, 0xDA, 0xDE, 0x6B, /* 0x44-0x47 */
+	0x00, 0x00, 0xB7, 0xD2, 0x00, 0x00, 0xDE, 0x7A, /* 0x48-0x4B */
+	0xB7, 0xD7, 0xDE, 0xA2, 0xB7, 0xCE, 0x00, 0x00, /* 0x4C-0x4F */
+	0xDE, 0x7D, 0x00, 0x00, 0xDE, 0x6D, 0xDE, 0x7E, /* 0x50-0x53 */
+	0xDE, 0x6C, 0x00, 0x00, 0xB7, 0xDC, 0x00, 0x00, /* 0x54-0x57 */
+	0xDE, 0x78, 0xB7, 0xCF, 0xDE, 0xA3, 0x00, 0x00, /* 0x58-0x5B */
+	0xB7, 0xD4, 0xDE, 0x71, 0xB7, 0xD9, 0xDE, 0x7C, /* 0x5C-0x5F */
+	0xDE, 0x6F, 0xDE, 0x76, 0xDE, 0x72, 0xDE, 0x6E, /* 0x60-0x63 */
+	0xB7, 0xD1, 0xB7, 0xD8, 0xB7, 0xD6, 0xB7, 0xD3, /* 0x64-0x67 */
+	0xB7, 0xDB, 0xB7, 0xD0, 0xDE, 0x75, 0x00, 0x00, /* 0x68-0x6B */
+	0xB7, 0xD5, 0x00, 0x00, 0xB5, 0x4E, 0x00, 0x00, /* 0x6C-0x6F */
+	0xDE, 0x7B, 0x00, 0x00, 0xDE, 0x73, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0xDE, 0x74, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xC1, /* 0x78-0x7B */
+	0x00, 0x00, 0xBA, 0xB4, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xE2, 0xBD, 0xE2, 0xC3, 0xE2, 0xBF, 0x00, 0x00, /* 0x80-0x83 */
+	0xBA, 0xB6, 0xE2, 0xBE, 0xE2, 0xC2, 0xE2, 0xBA, /* 0x84-0x87 */
+	0x00, 0x00, 0xE2, 0xBC, 0xBA, 0xB5, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xC0, /* 0x8C-0x8F */
+	0xE2, 0xBB, 0x00, 0x00, 0xBA, 0xB7, 0x00, 0x00, /* 0x90-0x93 */
+	0xBA, 0xB2, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xC4, /* 0x94-0x97 */
+	0x00, 0x00, 0xBA, 0xB3, 0xE6, 0x67, 0xE6, 0x64, /* 0x98-0x9B */
+	0xE6, 0x70, 0xE6, 0x6A, 0xE6, 0x6C, 0xBC, 0xF4, /* 0x9C-0x9F */
+	0xE6, 0x66, 0xE6, 0x6E, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xE6, 0x6D, 0xE6, 0x6B, 0x00, 0x00, 0xE6, 0x71, /* 0xA4-0xA7 */
+	0xBC, 0xF7, 0xE6, 0x68, 0xE6, 0x6F, 0x00, 0x00, /* 0xA8-0xAB */
+	0xBC, 0xF5, 0x00, 0x00, 0x00, 0x00, 0xE6, 0x63, /* 0xAC-0xAF */
+	0xE6, 0x65, 0xBC, 0xF6, 0xE6, 0x62, 0xE6, 0x72, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xE6, 0x69, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xEA, 0x4A, 0xBF, 0x51, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0xEA, 0x55, 0xEA, 0x53, 0xBF, 0x4B, 0xEA, 0x49, /* 0xBC-0xBF */
+	0xEA, 0x4C, 0xEA, 0x4D, 0xEA, 0x48, 0xBF, 0x55, /* 0xC0-0xC3 */
+	0xBF, 0x56, 0xEA, 0x47, 0xEA, 0x56, 0xEA, 0x51, /* 0xC4-0xC7 */
+	0xBF, 0x4F, 0xBF, 0x4C, 0xEA, 0x50, 0xEA, 0x4E, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0xBF, 0x52, 0xEA, 0x52, /* 0xCC-0xCF */
+	0xBF, 0x4D, 0x00, 0x00, 0xBF, 0x4E, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xEA, 0x4F, 0xBF, 0x50, 0xEA, 0x4B, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xEA, 0x54, 0xBF, 0x53, 0xEA, 0x57, 0xEA, 0x58, /* 0xD8-0xDB */
+	0xBF, 0x54, 0x00, 0x00, 0x00, 0x00, 0xC0, 0xE7, /* 0xDC-0xDF */
+	0xC0, 0xEE, 0xED, 0x5C, 0xED, 0x62, 0x00, 0x00, /* 0xE0-0xE3 */
+	0xED, 0x60, 0xC0, 0xEA, 0xC0, 0xE9, 0xC0, 0xE6, /* 0xE4-0xE7 */
+	0xED, 0x5E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0xC0, 0xEC, 0xC0, 0xEB, 0xC0, 0xE8, 0x00, 0x00, /* 0xEC-0xEF */
+	0xED, 0x61, 0xED, 0x5D, 0xED, 0x5F, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xC0, 0xED, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xC2, 0x77, 0xEF, 0xFB, 0x00, 0x00, 0xC2, 0x74, /* 0xF8-0xFB */
+	0xC2, 0x75, 0xEF, 0xFD, 0xC2, 0x76, 0xEF, 0xFA, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_72[512] = {
+	0x00, 0x00, 0xEF, 0xF9, 0xF2, 0x6C, 0xEF, 0xFC, /* 0x00-0x03 */
+	0x00, 0x00, 0xF2, 0x6D, 0xC3, 0x7A, 0xF2, 0x6B, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xF2, 0x6A, 0x00, 0x00, /* 0x08-0x0B */
+	0xF2, 0x69, 0xC3, 0x7B, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0xC4, 0x6C, 0x00, 0x00, 0x00, 0x00, 0xF4, 0x6A, /* 0x10-0x13 */
+	0xF4, 0x6B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0xF5, 0xDC, 0xF5, 0xDB, 0xC4, 0xEA, /* 0x18-0x1B */
+	0x00, 0x00, 0xF5, 0xDA, 0xF6, 0xEC, 0xF6, 0xED, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0xF7, 0xE6, 0xF8, 0xB1, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0xF8, 0xF6, 0xF9, 0xBC, /* 0x24-0x27 */
+	0xC6, 0x79, 0xF9, 0xC6, 0xA4, 0xF6, 0x00, 0x00, /* 0x28-0x2B */
+	0xAA, 0xA6, 0xAA, 0xA7, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xAC, 0xB8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0xC0, 0xEF, 0xA4, 0xF7, 0x00, 0x00, /* 0x34-0x37 */
+	0xAA, 0xA8, 0xAF, 0x52, 0xB7, 0xDD, 0xA4, 0xF8, /* 0x38-0x3B */
+	0x00, 0x00, 0xB2, 0x6E, 0xBA, 0xB8, 0xC9, 0x62, /* 0x3C-0x3F */
+	0x00, 0x00, 0xCF, 0xB7, 0xD2, 0x7D, 0x00, 0x00, /* 0x40-0x43 */
+	0xE2, 0xC5, 0x00, 0x00, 0xC0, 0xF0, 0xA4, 0xF9, /* 0x44-0x47 */
+	0xAA, 0xA9, 0xCF, 0xB8, 0xCF, 0xB9, 0xDA, 0x66, /* 0x48-0x4B */
+	0xB5, 0x50, 0x00, 0x00, 0x00, 0x00, 0xDE, 0xA4, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0xB7, 0xDE, 0xE2, 0xC6, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0xBC, 0xF8, 0x00, 0x00, /* 0x54-0x57 */
+	0xC3, 0x7C, 0xA4, 0xFA, 0xDA, 0x67, 0xA4, 0xFB, /* 0x58-0x5B */
+	0x00, 0x00, 0xA6, 0xC9, 0xCA, 0x42, 0xA6, 0xC8, /* 0x5C-0x5F */
+	0xA8, 0x65, 0xA8, 0x64, 0xA8, 0x63, 0xCB, 0x60, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xAA, 0xAA, /* 0x64-0x67 */
+	0x00, 0x00, 0xAA, 0xAB, 0xCD, 0x5B, 0x00, 0x00, /* 0x68-0x6B */
+	0xCF, 0xBA, 0x00, 0x00, 0xCF, 0xBD, 0xAC, 0xBA, /* 0x6C-0x6F */
+	0xCF, 0xBB, 0x00, 0x00, 0xAC, 0xB9, 0xCF, 0xBC, /* 0x70-0x73 */
+	0xAC, 0xBB, 0x00, 0x00, 0xD2, 0xA2, 0xD2, 0xA1, /* 0x74-0x77 */
+	0xD2, 0x7E, 0xAF, 0x53, 0x00, 0x00, 0xD6, 0x5D, /* 0x78-0x7B */
+	0xD6, 0x5E, 0xB2, 0x6F, 0xD6, 0x5C, 0xD6, 0x5F, /* 0x7C-0x7F */
+	
+	0xB5, 0x52, 0xB2, 0x70, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0xB5, 0x51, 0xDA, 0x6B, 0xDA, 0x6A, 0x00, 0x00, /* 0x84-0x87 */
+	0xDA, 0x68, 0xDA, 0x69, 0x00, 0x00, 0xDA, 0x6C, /* 0x88-0x8B */
+	0xDE, 0xA6, 0xDE, 0xA5, 0xDE, 0xA9, 0x00, 0x00, /* 0x8C-0x8F */
+	0xDE, 0xA8, 0xDE, 0xA7, 0xBA, 0xB9, 0xE2, 0xC9, /* 0x90-0x93 */
+	0x00, 0x00, 0xE2, 0xC8, 0xBA, 0xBA, 0xE2, 0xC7, /* 0x94-0x97 */
+	0xE6, 0x73, 0x00, 0x00, 0xE6, 0x74, 0xBC, 0xF9, /* 0x98-0x9B */
+	0x00, 0x00, 0xEA, 0x59, 0xEA, 0x5A, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0xF2, 0x72, 0xC3, 0x7D, 0xF2, 0x71, /* 0xA0-0xA3 */
+	0xF2, 0x70, 0xF2, 0x6E, 0xF2, 0x6F, 0xC4, 0xEB, /* 0xA4-0xA7 */
+	0xF4, 0x6C, 0xF6, 0xEE, 0xF8, 0xF7, 0x00, 0x00, /* 0xA8-0xAB */
+	0xA4, 0xFC, 0x00, 0x00, 0xC9, 0xA5, 0xA5, 0xC7, /* 0xAC-0xAF */
+	0xC9, 0xA6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0xCA, 0x43, 0xCA, 0x44, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0xCB, 0x66, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0xCB, 0x62, 0x00, 0x00, 0xCB, 0x61, /* 0xBC-0xBF */
+	0xAA, 0xAC, 0xCB, 0x65, 0xA8, 0x67, 0xCB, 0x63, /* 0xC0-0xC3 */
+	0xA8, 0x66, 0xCB, 0x67, 0xCB, 0x64, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xCD, 0x5F, 0xCF, 0xBE, 0xCD, 0x5D, /* 0xC8-0xCB */
+	0xCD, 0x64, 0x00, 0x00, 0xAA, 0xAD, 0x00, 0x00, /* 0xCC-0xCF */
+	0xAA, 0xB0, 0xCD, 0x65, 0xCD, 0x61, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xCD, 0x62, 0x00, 0x00, 0xCD, 0x5C, 0xAA, 0xAF, /* 0xD4-0xD7 */
+	0xCD, 0x5E, 0xAA, 0xAE, 0xCD, 0x63, 0x00, 0x00, /* 0xD8-0xDB */
+	0xCD, 0x60, 0x00, 0x00, 0x00, 0x00, 0xCF, 0xC2, /* 0xDC-0xDF */
+	0xAC, 0xBD, 0xAC, 0xBE, 0x00, 0x00, 0xCF, 0xC5, /* 0xE0-0xE3 */
+	0xCF, 0xBF, 0x00, 0x00, 0xCF, 0xC4, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xCF, 0xC0, 0xAC, 0xBC, 0xCF, 0xC3, 0xCF, 0xC1, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD2, 0xA8, /* 0xF0-0xF3 */
+	0xD2, 0xA5, 0x00, 0x00, 0xD2, 0xA7, 0xAF, 0x58, /* 0xF4-0xF7 */
+	0xAF, 0x57, 0xAF, 0x55, 0xD2, 0xA4, 0xD2, 0xA9, /* 0xF8-0xFB */
+	0xAF, 0x54, 0xAF, 0x56, 0xD2, 0xA6, 0xD6, 0x67, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_73[512] = {
+	0xD2, 0xA3, 0xD2, 0xAA, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD6, 0x62, /* 0x04-0x07 */
+	0xD6, 0x66, 0x00, 0x00, 0xD6, 0x65, 0xDA, 0x6E, /* 0x08-0x0B */
+	0xDA, 0x79, 0x00, 0x00, 0x00, 0x00, 0xD6, 0x68, /* 0x0C-0x0F */
+	0x00, 0x00, 0xD6, 0x63, 0xDA, 0x6D, 0xB2, 0x74, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xB2, 0x73, 0xD6, 0x61, /* 0x14-0x17 */
+	0xD6, 0x64, 0xB2, 0x75, 0x00, 0x00, 0xB2, 0x72, /* 0x18-0x1B */
+	0xB2, 0x71, 0xD6, 0x60, 0xD6, 0x69, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0xDA, 0x70, 0xDA, 0x77, /* 0x20-0x23 */
+	0x00, 0x00, 0xB5, 0x54, 0xDA, 0x76, 0xDA, 0x73, /* 0x24-0x27 */
+	0x00, 0x00, 0xB5, 0x56, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0xDA, 0x75, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xDA, 0x6F, 0xDA, 0x71, 0xDA, 0x74, 0xDA, 0x72, /* 0x30-0x33 */
+	0xB5, 0x55, 0xDA, 0x78, 0xB5, 0x53, 0xB7, 0xDF, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xDE, 0xAD, 0xDE, 0xAC, /* 0x38-0x3B */
+	0xDE, 0xAA, 0x00, 0x00, 0xB7, 0xE2, 0xB7, 0xE1, /* 0x3C-0x3F */
+	0xDE, 0xAE, 0x00, 0x00, 0xDE, 0xAB, 0xE2, 0xCA, /* 0x40-0x43 */
+	0xBA, 0xBB, 0xB7, 0xE0, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0xDE, 0xB0, 0xDE, 0xAF, 0x00, 0x00, /* 0x48-0x4B */
+	0xE2, 0xCD, 0xE2, 0xCB, 0xBC, 0xFA, 0x00, 0x00, /* 0x4C-0x4F */
+	0xBA, 0xBC, 0xE2, 0xCC, 0xE6, 0x76, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xBC, 0xFB, /* 0x54-0x57 */
+	0xE6, 0x75, 0xE6, 0x7E, 0xE6, 0x7D, 0xE6, 0x7B, /* 0x58-0x5B */
+	0x00, 0x00, 0xE6, 0x7A, 0xE6, 0x77, 0xE6, 0x78, /* 0x5C-0x5F */
+	0xE6, 0x79, 0xE6, 0x7C, 0xE6, 0xA1, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0xEA, 0x5F, 0xEA, 0x5C, 0xEA, 0x5D, /* 0x64-0x67 */
+	0xBF, 0x57, 0xEA, 0x5B, 0xEA, 0x61, 0xEA, 0x60, /* 0x68-0x6B */
+	0xEA, 0x5E, 0x00, 0x00, 0xED, 0x64, 0xED, 0x65, /* 0x6C-0x6F */
+	0xC0, 0xF1, 0x00, 0x00, 0xC0, 0xF2, 0xED, 0x63, /* 0x70-0x73 */
+	0x00, 0x00, 0xC2, 0x79, 0xEF, 0xFE, 0xC2, 0x78, /* 0x74-0x77 */
+	0xC3, 0x7E, 0x00, 0x00, 0xC3, 0xA1, 0xC4, 0x6D, /* 0x78-0x7B */
+	0xF4, 0x6E, 0xF4, 0x6D, 0xF5, 0xDD, 0xF6, 0xEF, /* 0x7C-0x7F */
+	
+	0xC5, 0x7A, 0xF7, 0xE8, 0xF7, 0xE7, 0xF7, 0xE9, /* 0x80-0x83 */
+	0xA5, 0xC8, 0xCF, 0xC6, 0xAF, 0x59, 0xB2, 0x76, /* 0x84-0x87 */
+	0xD6, 0x6A, 0xA5, 0xC9, 0xC9, 0xA7, 0xA4, 0xFD, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0xCA, 0x45, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0xCB, 0x6C, 0xCB, 0x6A, /* 0x90-0x93 */
+	0xCB, 0x6B, 0xCB, 0x68, 0xA8, 0x68, 0xCB, 0x69, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0xCD, 0x6D, 0x00, 0x00, 0xAA, 0xB3, /* 0x9C-0x9F */
+	0xCD, 0x6B, 0xCD, 0x67, 0xCD, 0x6A, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xCD, 0x66, 0xAA, 0xB5, 0xCD, 0x69, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xAA, 0xB2, 0xAA, 0xB1, 0x00, 0x00, 0xAA, 0xB4, /* 0xA8-0xAB */
+	0xCD, 0x6C, 0xCD, 0x68, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0xAC, 0xC2, 0xAC, 0xC5, /* 0xB0-0xB3 */
+	0xCF, 0xCE, 0xCF, 0xCD, 0xCF, 0xCC, 0xAC, 0xBF, /* 0xB4-0xB7 */
+	0xCF, 0xD5, 0xCF, 0xCB, 0x00, 0x00, 0xAC, 0xC1, /* 0xB8-0xBB */
+	0xD2, 0xAF, 0x00, 0x00, 0xCF, 0xD2, 0xCF, 0xD0, /* 0xBC-0xBF */
+	0xAC, 0xC4, 0x00, 0x00, 0xCF, 0xC8, 0xCF, 0xD3, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xCF, 0xCA, 0xCF, 0xD4, 0xCF, 0xD1, /* 0xC4-0xC7 */
+	0xCF, 0xC9, 0x00, 0x00, 0xAC, 0xC0, 0xCF, 0xD6, /* 0xC8-0xCB */
+	0xCF, 0xC7, 0xAC, 0xC3, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0xD2, 0xB4, 0xD2, 0xAB, /* 0xD0-0xD3 */
+	0xD2, 0xB6, 0x00, 0x00, 0xD2, 0xAE, 0xD2, 0xB9, /* 0xD4-0xD7 */
+	0xD2, 0xBA, 0xD2, 0xAC, 0xD2, 0xB8, 0xD2, 0xB5, /* 0xD8-0xDB */
+	0xD2, 0xB3, 0xD2, 0xB7, 0xAF, 0x5F, 0x00, 0x00, /* 0xDC-0xDF */
+	0xAF, 0x5D, 0x00, 0x00, 0x00, 0x00, 0xD2, 0xB1, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xD2, 0xAD, 0x00, 0x00, 0xD2, 0xB0, /* 0xE4-0xE7 */
+	0xD2, 0xBB, 0xD2, 0xB2, 0xAF, 0x5E, 0xCF, 0xCF, /* 0xE8-0xEB */
+	0x00, 0x00, 0xAF, 0x5A, 0xAF, 0x5C, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xD6, 0x78, 0xD6, 0x6D, 0xD6, 0x6B, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xD6, 0x6C, 0x00, 0x00, 0xD6, 0x73, 0x00, 0x00, /* 0xF8-0xFB */
+	0xD6, 0x74, 0xD6, 0x70, 0xB2, 0x7B, 0xD6, 0x75, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_74[512] = {
+	0xD6, 0x72, 0xD6, 0x6F, 0x00, 0x00, 0xB2, 0x79, /* 0x00-0x03 */
+	0xD6, 0x6E, 0xB2, 0x77, 0xB2, 0x7A, 0xD6, 0x71, /* 0x04-0x07 */
+	0xD6, 0x79, 0xAF, 0x5B, 0xB2, 0x78, 0xD6, 0x77, /* 0x08-0x0B */
+	0xD6, 0x76, 0xB2, 0x7C, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xDA, 0x7E, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0xDA, 0xA1, 0xB5, 0x60, /* 0x18-0x1B */
+	0x00, 0x00, 0xDA, 0xA7, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0xDA, 0xA9, 0xDA, 0xA2, 0xB5, 0x5A, 0xDA, 0xA6, /* 0x20-0x23 */
+	0xDA, 0xA5, 0xB5, 0x5B, 0xB5, 0x61, 0x00, 0x00, /* 0x24-0x27 */
+	0xB5, 0x62, 0xDA, 0xA8, 0xB5, 0x58, 0xDA, 0x7D, /* 0x28-0x2B */
+	0xDA, 0x7B, 0xDA, 0xA3, 0xDA, 0x7A, 0xB5, 0x5F, /* 0x2C-0x2F */
+	0xDA, 0x7C, 0xDA, 0xA4, 0xDA, 0xAA, 0xB5, 0x59, /* 0x30-0x33 */
+	0xB5, 0x5E, 0xB5, 0x5C, 0xB5, 0x5D, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xB5, 0x57, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB7, 0xE9, /* 0x3C-0x3F */
+	0xDE, 0xB7, 0xB7, 0xE8, 0xDE, 0xBB, 0x00, 0x00, /* 0x40-0x43 */
+	0xDE, 0xB1, 0x00, 0x00, 0xDE, 0xBC, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0xDE, 0xB2, 0xDE, 0xB3, /* 0x48-0x4B */
+	0x00, 0x00, 0xDE, 0xBD, 0xDE, 0xBA, 0xDE, 0xB8, /* 0x4C-0x4F */
+	0xDE, 0xB9, 0xDE, 0xB5, 0xDE, 0xB4, 0x00, 0x00, /* 0x50-0x53 */
+	0xDE, 0xBE, 0xB7, 0xE5, 0x00, 0x00, 0xDE, 0xB6, /* 0x54-0x57 */
+	0x00, 0x00, 0xB7, 0xEA, 0xB7, 0xE4, 0xB7, 0xEB, /* 0x58-0x5B */
+	0xB7, 0xEC, 0x00, 0x00, 0xB7, 0xE7, 0xB7, 0xE6, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0xCE, 0xBA, 0xBE, /* 0x60-0x63 */
+	0xBA, 0xBD, 0x00, 0x00, 0x00, 0x00, 0xE2, 0xD3, /* 0x64-0x67 */
+	0x00, 0x00, 0xBC, 0xFC, 0xBA, 0xBF, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0xBA, 0xC1, 0xE2, 0xD4, 0xB7, 0xE3, /* 0x6C-0x6F */
+	0xBA, 0xC0, 0xE2, 0xD0, 0xE2, 0xD2, 0xE2, 0xCF, /* 0x70-0x73 */
+	0x00, 0x00, 0xE2, 0xD1, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0xE6, 0xAB, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0xE6, 0xAA, 0xE6, 0xA7, 0xBD, 0x40, 0xEA, 0x62, /* 0x7C-0x7F */
+	
+	0xBD, 0x41, 0xE6, 0xA6, 0x00, 0x00, 0xBC, 0xFE, /* 0x80-0x83 */
+	0x00, 0x00, 0xE6, 0xA8, 0xE6, 0xA5, 0xE6, 0xA2, /* 0x84-0x87 */
+	0xE6, 0xA9, 0xE6, 0xA3, 0xE6, 0xA4, 0xBC, 0xFD, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0xED, 0x69, 0x00, 0x00, 0xEA, 0x66, 0x00, 0x00, /* 0x90-0x93 */
+	0xEA, 0x65, 0xEA, 0x67, 0x00, 0x00, 0xED, 0x66, /* 0x94-0x97 */
+	0xBF, 0x5A, 0x00, 0x00, 0xEA, 0x63, 0x00, 0x00, /* 0x98-0x9B */
+	0xBF, 0x58, 0x00, 0x00, 0xBF, 0x5C, 0xBF, 0x5B, /* 0x9C-0x9F */
+	0xEA, 0x64, 0xEA, 0x68, 0x00, 0x00, 0xBF, 0x59, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xED, 0x6D, 0xC0, 0xF5, 0xC2, 0x7A, /* 0xA4-0xA7 */
+	0xC0, 0xF6, 0xC0, 0xF3, 0xED, 0x6A, 0xED, 0x68, /* 0xA8-0xAB */
+	0x00, 0x00, 0xED, 0x6B, 0x00, 0x00, 0xED, 0x6E, /* 0xAC-0xAF */
+	0xC0, 0xF4, 0xED, 0x6C, 0xED, 0x67, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xF0, 0x42, 0xF0, 0x45, 0xF2, 0x75, /* 0xB4-0xB7 */
+	0xF0, 0x40, 0x00, 0x00, 0xF4, 0x6F, 0xF0, 0x46, /* 0xB8-0xBB */
+	0x00, 0x00, 0xC3, 0xA2, 0xF0, 0x44, 0xC2, 0x7B, /* 0xBC-0xBF */
+	0xF0, 0x41, 0xF0, 0x43, 0xF0, 0x47, 0xF2, 0x76, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xF2, 0x74, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0xC3, 0xA3, 0xF2, 0x73, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC4, 0x6E, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xC4, 0xED, 0xF6, 0xF1, 0xC4, 0xEC, 0xF6, 0xF3, /* 0xD4-0xD7 */
+	0xF6, 0xF0, 0xF6, 0xF2, 0xC5, 0xD0, 0xF8, 0xB2, /* 0xD8-0xDB */
+	0xA5, 0xCA, 0xCD, 0x6E, 0xD2, 0xBC, 0xD2, 0xBD, /* 0xDC-0xDF */
+	0xB2, 0x7D, 0xDE, 0xBF, 0xBF, 0x5D, 0xC3, 0xA4, /* 0xE0-0xE3 */
+	0xC5, 0x7B, 0xF8, 0xB3, 0xA5, 0xCB, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xCD, 0x6F, 0xA2, 0x60, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0xCF, 0xD7, 0x00, 0x00, 0xCF, 0xD8, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xD2, 0xBE, 0xD2, 0xBF, 0xB2, 0x7E, 0xB2, 0xA1, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDA, 0xAB, /* 0xF8-0xFB */
+	0x00, 0x00, 0xDE, 0xC2, 0xDE, 0xC1, 0xDE, 0xC0, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_75[512] = {
+	0xE2, 0xD5, 0x00, 0x00, 0xE2, 0xD6, 0xE2, 0xD7, /* 0x00-0x03 */
+	0xBA, 0xC2, 0x00, 0x00, 0x00, 0x00, 0xE6, 0xAD, /* 0x04-0x07 */
+	0xE6, 0xAC, 0x00, 0x00, 0x00, 0x00, 0xEA, 0x69, /* 0x08-0x0B */
+	0xBF, 0x5E, 0xBF, 0x5F, 0x00, 0x00, 0xED, 0x72, /* 0x0C-0x0F */
+	0xED, 0x6F, 0xED, 0x70, 0xED, 0x71, 0xF0, 0x49, /* 0x10-0x13 */
+	0xF0, 0x48, 0xC2, 0x7C, 0xF2, 0x77, 0xF5, 0xDE, /* 0x14-0x17 */
+	0xA5, 0xCC, 0x00, 0x00, 0xAC, 0xC6, 0x00, 0x00, /* 0x18-0x1B */
+	0xB2, 0xA2, 0xDE, 0xC3, 0x00, 0x00, 0xA5, 0xCD, /* 0x1C-0x1F */
+	0x00, 0x00, 0xD2, 0xC0, 0xB2, 0xA3, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0xB5, 0x63, 0xB5, 0x64, 0x00, 0x00, /* 0x24-0x27 */
+	0xA5, 0xCE, 0xA5, 0xCF, 0xCA, 0x46, 0xA8, 0x6A, /* 0x28-0x2B */
+	0xA8, 0x69, 0xAC, 0xC7, 0xCF, 0xD9, 0xDA, 0xAC, /* 0x2C-0x2F */
+	0xA5, 0xD0, 0xA5, 0xD1, 0xA5, 0xD2, 0xA5, 0xD3, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA8, 0x6B, /* 0x34-0x37 */
+	0xA8, 0x6C, 0xCB, 0x6E, 0xCB, 0x6D, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0xAA, 0xB6, 0xCD, 0x72, 0xCD, 0x70, /* 0x3C-0x3F */
+	0xCD, 0x71, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCF, 0xDA, /* 0x44-0x47 */
+	0xCF, 0xDB, 0x00, 0x00, 0x00, 0x00, 0xAC, 0xCB, /* 0x48-0x4B */
+	0xAC, 0xC9, 0x00, 0x00, 0xAC, 0xCA, 0xAC, 0xC8, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0xAF, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0xAF, 0x64, 0xAF, 0x63, 0xD2, 0xC1, /* 0x58-0x5B */
+	0xAF, 0x62, 0xAF, 0x61, 0x00, 0x00, 0xD2, 0xC2, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0xB2, 0xA6, 0xD6, 0x7B, /* 0x60-0x63 */
+	0xD6, 0x7A, 0xB2, 0xA4, 0xB2, 0xA5, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0xB5, 0x66, 0xB5, 0x65, /* 0x68-0x6B */
+	0xDA, 0xAE, 0x00, 0x00, 0x00, 0x00, 0xDA, 0xAD, /* 0x6C-0x6F */
+	0xB2, 0xA7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0xB7, 0xED, 0xDE, 0xC5, /* 0x74-0x77 */
+	0xB7, 0xEE, 0xDE, 0xC4, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0xE2, 0xD8, 0xE6, 0xAE, 0xBD, 0x42, /* 0x7C-0x7F */
+	
+	0xEA, 0x6A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0xED, 0x73, 0x00, 0x00, 0xC3, 0xA6, 0xC3, 0xA5, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0xC5, 0x7C, 0xA5, 0xD4, /* 0x88-0x8B */
+	0xCD, 0x73, 0x00, 0x00, 0x00, 0x00, 0xB2, 0xA8, /* 0x8C-0x8F */
+	0xE2, 0xD9, 0xBA, 0xC3, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0xCB, 0x6F, 0xCB, 0x70, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0xCD, 0x74, 0xAA, 0xB8, 0xAA, 0xB9, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0xAA, 0xB7, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0xAC, 0xCF, 0xAC, 0xD0, /* 0xA0-0xA3 */
+	0xAC, 0xCD, 0xAC, 0xCE, 0x00, 0x00, 0xCF, 0xDC, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0xCF, 0xDD, 0xAC, 0xCC, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0xD2, 0xC3, 0x00, 0x00, 0xAF, 0x68, 0xAF, 0x69, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xB2, 0xAB, 0xD2, 0xC9, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xAF, 0x6E, 0xAF, 0x6C, 0xD2, 0xCA, 0xD2, 0xC5, /* 0xB8-0xBB */
+	0xAF, 0x6B, 0xAF, 0x6A, 0xAF, 0x65, 0xD2, 0xC8, /* 0xBC-0xBF */
+	0xD2, 0xC7, 0xD2, 0xC4, 0xAF, 0x6D, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xD2, 0xC6, 0xAF, 0x66, 0x00, 0x00, 0xAF, 0x67, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0xB2, 0xAC, 0xD6, 0xA1, /* 0xC8-0xCB */
+	0xD6, 0xA2, 0xB2, 0xAD, 0xD6, 0x7C, 0xD6, 0x7E, /* 0xCC-0xCF */
+	0xD6, 0xA4, 0xD6, 0xA3, 0xD6, 0x7D, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xB2, 0xA9, 0xB2, 0xAA, 0x00, 0x00, 0xDA, 0xB6, /* 0xD4-0xD7 */
+	0xB5, 0x6B, 0xB5, 0x6A, 0xDA, 0xB0, 0xB5, 0x68, /* 0xD8-0xDB */
+	0x00, 0x00, 0xDA, 0xB3, 0xB5, 0x6C, 0xDA, 0xB4, /* 0xDC-0xDF */
+	0xB5, 0x6D, 0xDA, 0xB1, 0xB5, 0x67, 0xB5, 0x69, /* 0xE0-0xE3 */
+	0xDA, 0xB5, 0x00, 0x00, 0xDA, 0xB2, 0xDA, 0xAF, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0xDE, 0xD2, 0x00, 0x00, 0xDE, 0xC7, /* 0xEC-0xEF */
+	0xB7, 0xF0, 0xB7, 0xF3, 0xB7, 0xF2, 0xB7, 0xF7, /* 0xF0-0xF3 */
+	0xB7, 0xF6, 0xDE, 0xD3, 0xDE, 0xD1, 0xDE, 0xCA, /* 0xF4-0xF7 */
+	0xDE, 0xCE, 0xDE, 0xCD, 0xB7, 0xF4, 0xDE, 0xD0, /* 0xF8-0xFB */
+	0xDE, 0xCC, 0xDE, 0xD4, 0xDE, 0xCB, 0xB7, 0xF5, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_76[512] = {
+	0xB7, 0xEF, 0xB7, 0xF1, 0x00, 0x00, 0xDE, 0xC9, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0xE2, 0xDB, 0xBA, 0xC7, 0xE2, 0xDF, 0xBA, 0xC6, /* 0x08-0x0B */
+	0xE2, 0xDC, 0xBA, 0xC5, 0x00, 0x00, 0xDE, 0xC8, /* 0x0C-0x0F */
+	0xDE, 0xCF, 0xE2, 0xDE, 0x00, 0x00, 0xBA, 0xC8, /* 0x10-0x13 */
+	0xE2, 0xE0, 0xE2, 0xDD, 0xE2, 0xDA, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0xE6, 0xB1, 0xE6, 0xB5, 0xE6, 0xB7, /* 0x18-0x1B */
+	0xE6, 0xB3, 0xE6, 0xB2, 0xE6, 0xB0, 0xBD, 0x45, /* 0x1C-0x1F */
+	0xBD, 0x43, 0xBD, 0x48, 0xBD, 0x49, 0xE6, 0xB4, /* 0x20-0x23 */
+	0xBD, 0x46, 0xE6, 0xAF, 0xBD, 0x47, 0xBA, 0xC4, /* 0x24-0x27 */
+	0xE6, 0xB6, 0xBD, 0x44, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0xEA, 0x6C, 0x00, 0x00, 0xEA, 0x6B, /* 0x2C-0x2F */
+	0xEA, 0x73, 0xEA, 0x6D, 0xEA, 0x72, 0xEA, 0x6F, /* 0x30-0x33 */
+	0xBF, 0x60, 0xEA, 0x71, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0xBF, 0x61, 0x00, 0x00, 0xBF, 0x62, 0x00, 0x00, /* 0x38-0x3B */
+	0xEA, 0x70, 0xEA, 0x6E, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0xC0, 0xF8, 0xED, 0x74, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xC0, 0xF7, 0xED, 0x77, /* 0x44-0x47 */
+	0xED, 0x75, 0xED, 0x76, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0xC0, 0xF9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0xF0, 0x4D, 0x00, 0x00, 0xC2, 0xA1, 0xF0, 0x4E, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0xC2, 0x7D, 0xF0, 0x4F, /* 0x54-0x57 */
+	0xC2, 0x7E, 0xF0, 0x4C, 0xF0, 0x50, 0x00, 0x00, /* 0x58-0x5B */
+	0xF0, 0x4A, 0x00, 0x00, 0x00, 0x00, 0xC3, 0xA7, /* 0x5C-0x5F */
+	0xF2, 0x78, 0xC3, 0xA8, 0xC4, 0x6F, 0x00, 0x00, /* 0x60-0x63 */
+	0xF0, 0x4B, 0xC4, 0x70, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0xC4, 0xEE, 0xF5, 0xDF, 0x00, 0x00, /* 0x68-0x6B */
+	0xC5, 0x7E, 0xF6, 0xF4, 0xC5, 0x7D, 0x00, 0x00, /* 0x6C-0x6F */
+	0xF7, 0xEA, 0xC5, 0xF5, 0xC5, 0xF6, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0xF9, 0xCC, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0xAC, 0xD1, 0xCF, 0xDE, 0x00, 0x00, 0xB5, 0x6E, /* 0x78-0x7B */
+	0xB5, 0x6F, 0xA5, 0xD5, 0xA6, 0xCA, 0xCA, 0x47, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xCB, 0x71, 0xA8, 0x6D, 0x00, 0x00, /* 0x80-0x83 */
+	0xAA, 0xBA, 0x00, 0x00, 0xAC, 0xD2, 0xAC, 0xD3, /* 0x84-0x87 */
+	0xAC, 0xD4, 0xD6, 0xA6, 0xD2, 0xCB, 0xAF, 0x6F, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0xB2, 0xAE, 0xD6, 0xA5, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0xDA, 0xB8, 0xB5, 0x71, /* 0x90-0x93 */
+	0x00, 0x00, 0xDA, 0xB7, 0xB5, 0x70, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0xDE, 0xD5, 0xBD, 0x4A, 0xE6, 0xBB, /* 0x98-0x9B */
+	0xE6, 0xB8, 0xE6, 0xB9, 0xE6, 0xBA, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xED, 0x78, 0x00, 0x00, 0xF0, 0x51, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0xF4, 0x71, 0xF4, 0x70, /* 0xA8-0xAB */
+	0x00, 0x00, 0xF6, 0xF5, 0xA5, 0xD6, 0xCD, 0x75, /* 0xAC-0xAF */
+	0xAF, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0xB5, 0x72, 0xDE, 0xD6, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xE2, 0xE1, 0x00, 0x00, 0xBD, 0x4B, 0xEA, 0x74, /* 0xB8-0xBB */
+	0x00, 0x00, 0xF0, 0x52, 0xF4, 0x72, 0xA5, 0xD7, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0xAA, 0xBB, 0xAC, 0xD7, /* 0xC0-0xC3 */
+	0xCF, 0xDF, 0xAC, 0xD8, 0xAC, 0xD6, 0x00, 0x00, /* 0xC4-0xC7 */
+	0xAC, 0xD5, 0xD2, 0xCC, 0xAF, 0x71, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0xAF, 0x72, 0xAF, 0x73, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0xB2, 0xB0, 0xD6, 0xA7, /* 0xD0-0xD3 */
+	0xB2, 0xAF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0xDA, 0xB9, 0xB2, 0xB1, /* 0xD8-0xDB */
+	0xB5, 0x73, 0xDE, 0xD7, 0xB7, 0xF8, 0xB7, 0xF9, /* 0xDC-0xDF */
+	0x00, 0x00, 0xBA, 0xC9, 0x00, 0x00, 0xBA, 0xCA, /* 0xE0-0xE3 */
+	0xBD, 0x4C, 0xBF, 0x64, 0xEA, 0x75, 0xBF, 0x63, /* 0xE4-0xE7 */
+	0x00, 0x00, 0xED, 0x79, 0xC0, 0xFA, 0x00, 0x00, /* 0xE8-0xEB */
+	0xF0, 0x53, 0xF4, 0x73, 0xA5, 0xD8, 0xA8, 0x6E, /* 0xEC-0xEF */
+	0xCD, 0x78, 0xCD, 0x77, 0xAA, 0xBC, 0xCD, 0x76, /* 0xF0-0xF3 */
+	0xAA, 0xBD, 0xCD, 0x79, 0x00, 0x00, 0xCF, 0xE5, /* 0xF4-0xF7 */
+	0xAC, 0xDB, 0xAC, 0xDA, 0xCF, 0xE7, 0xCF, 0xE6, /* 0xF8-0xFB */
+	0xAC, 0xDF, 0x00, 0x00, 0xAC, 0xDE, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_77[512] = {
+	0x00, 0x00, 0xAC, 0xD9, 0x00, 0x00, 0xCF, 0xE1, /* 0x00-0x03 */
+	0xCF, 0xE2, 0xCF, 0xE3, 0x00, 0x00, 0xAC, 0xE0, /* 0x04-0x07 */
+	0xCF, 0xE0, 0xAC, 0xDC, 0xCF, 0xE4, 0xAC, 0xDD, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0xD2, 0xCF, 0xD2, 0xD3, 0xD2, 0xD1, 0xD2, 0xD0, /* 0x10-0x13 */
+	0x00, 0x00, 0xD2, 0xD4, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0xD2, 0xD5, 0xD2, 0xD6, 0xD2, 0xCE, /* 0x18-0x1B */
+	0x00, 0x00, 0xD2, 0xCD, 0x00, 0x00, 0xAF, 0x75, /* 0x1C-0x1F */
+	0xAF, 0x76, 0x00, 0x00, 0xD2, 0xD7, 0xD2, 0xD2, /* 0x20-0x23 */
+	0x00, 0x00, 0xD6, 0xB0, 0x00, 0x00, 0xD2, 0xD8, /* 0x24-0x27 */
+	0xAF, 0x77, 0xAF, 0x74, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0xD6, 0xAA, 0x00, 0x00, 0xD6, 0xA9, /* 0x2C-0x2F */
+	0x00, 0x00, 0xD6, 0xAB, 0xD6, 0xAC, 0xD6, 0xAE, /* 0x30-0x33 */
+	0xD6, 0xAD, 0xD6, 0xB2, 0xB2, 0xB5, 0xB2, 0xB2, /* 0x34-0x37 */
+	0xB2, 0xB6, 0xD6, 0xA8, 0xB2, 0xB7, 0xD6, 0xB1, /* 0x38-0x3B */
+	0xB2, 0xB4, 0xD6, 0xAF, 0xB2, 0xB3, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0xDA, 0xBC, 0xDA, 0xBE, 0xDA, 0xBA, 0xDA, 0xBB, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0xDA, 0xBF, 0xDA, 0xC1, /* 0x48-0x4B */
+	0xDA, 0xC2, 0xDA, 0xBD, 0xDA, 0xC0, 0xB5, 0x74, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0xDE, 0xDB, 0x00, 0x00, /* 0x50-0x53 */
+	0xDE, 0xE0, 0xDE, 0xD8, 0xDE, 0xDC, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0xDE, 0xE1, 0xDE, 0xDD, 0xB7, 0xFA, /* 0x58-0x5B */
+	0xB8, 0x43, 0x00, 0x00, 0xB7, 0xFD, 0xDE, 0xD9, /* 0x5C-0x5F */
+	0xDE, 0xDA, 0xBA, 0xCE, 0xB8, 0x46, 0xB7, 0xFE, /* 0x60-0x63 */
+	0x00, 0x00, 0xB8, 0x44, 0xB7, 0xFC, 0xDE, 0xDF, /* 0x64-0x67 */
+	0xB8, 0x45, 0xDE, 0xDE, 0xB8, 0x41, 0xB7, 0xFB, /* 0x68-0x6B */
+	0xB8, 0x42, 0xDE, 0xE2, 0xE2, 0xE6, 0xE2, 0xE8, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0xB8, 0x40, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0xE2, 0xE3, 0xBA, 0xCC, 0xE2, 0xE9, 0xBA, 0xCD, /* 0x7C-0x7F */
+	
+	0xE2, 0xE7, 0xE2, 0xE2, 0xE2, 0xE5, 0xE2, 0xEA, /* 0x80-0x83 */
+	0xBA, 0xCB, 0xE2, 0xE4, 0x00, 0x00, 0xBD, 0x4E, /* 0x84-0x87 */
+	0xE6, 0xBF, 0xE6, 0xBE, 0x00, 0x00, 0xBD, 0x51, /* 0x88-0x8B */
+	0xBD, 0x4F, 0xE6, 0xBC, 0xBD, 0x4D, 0xE6, 0xBD, /* 0x8C-0x8F */
+	0x00, 0x00, 0xBD, 0x50, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0xEA, 0x7D, 0x00, 0x00, 0xEA, 0xA1, /* 0x94-0x97 */
+	0x00, 0x00, 0xEA, 0x7E, 0xEA, 0x76, 0xEA, 0x7A, /* 0x98-0x9B */
+	0xEA, 0x79, 0xEA, 0x77, 0xBF, 0x66, 0xBF, 0x67, /* 0x9C-0x9F */
+	0xBF, 0x65, 0xEA, 0x78, 0xEA, 0x7B, 0xEA, 0x7C, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xBF, 0x68, 0x00, 0x00, 0xC1, 0x40, /* 0xA4-0xA7 */
+	0xED, 0xA3, 0x00, 0x00, 0xC0, 0xFC, 0xED, 0x7B, /* 0xA8-0xAB */
+	0xC0, 0xFE, 0xC1, 0x41, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0xC0, 0xFD, 0xED, 0xA2, 0xED, 0x7C, 0xC0, 0xFB, /* 0xB0-0xB3 */
+	0xED, 0xA1, 0xED, 0x7A, 0xED, 0x7E, 0xED, 0x7D, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0xF0, 0x55, 0xC2, 0xA4, /* 0xB8-0xBB */
+	0xC2, 0xA5, 0xC2, 0xA2, 0x00, 0x00, 0xC2, 0xA3, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0xF0, 0x54, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xF2, 0x7B, 0x00, 0x00, 0x00, 0x00, 0xC3, 0xA9, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xF2, 0x79, 0xF2, 0x7A, 0x00, 0x00, /* 0xC8-0xCB */
+	0xF4, 0x74, 0xF4, 0x77, 0xF4, 0x75, 0xF4, 0x76, /* 0xCC-0xCF */
+	0xF5, 0xE0, 0x00, 0x00, 0x00, 0x00, 0xC4, 0xEF, /* 0xD0-0xD3 */
+	0xF7, 0xEB, 0xF8, 0xB4, 0x00, 0x00, 0xC5, 0xF7, /* 0xD4-0xD7 */
+	0xF8, 0xF8, 0xF8, 0xF9, 0xC6, 0x66, 0xA5, 0xD9, /* 0xD8-0xDB */
+	0xAC, 0xE1, 0x00, 0x00, 0xDA, 0xC3, 0x00, 0x00, /* 0xDC-0xDF */
+	0xDE, 0xE3, 0x00, 0x00, 0xA5, 0xDA, 0xA8, 0x6F, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xAA, 0xBE, 0x00, 0x00, 0xCF, 0xE8, /* 0xE4-0xE7 */
+	0xCF, 0xE9, 0xAF, 0x78, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0xDA, 0xC4, 0xB5, 0x75, 0xB8, 0x47, 0xC1, 0x42, /* 0xEC-0xEF */
+	0xED, 0xA4, 0xF2, 0x7C, 0xF4, 0x78, 0xA5, 0xDB, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCD, 0xA1, /* 0xF4-0xF7 */
+	0xCD, 0x7A, 0xCD, 0x7C, 0xCD, 0x7E, 0xCD, 0x7D, /* 0xF8-0xFB */
+	0xCD, 0x7B, 0xAA, 0xBF, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_78[512] = {
+	0x00, 0x00, 0x00, 0x00, 0xAC, 0xE2, 0xCF, 0xF2, /* 0x00-0x03 */
+	0x00, 0x00, 0xCF, 0xED, 0xCF, 0xEA, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xCF, 0xF1, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0xAC, 0xE4, 0xAC, 0xE5, 0xCF, 0xF0, 0xCF, 0xEF, /* 0x0C-0x0F */
+	0xCF, 0xEE, 0xCF, 0xEB, 0xCF, 0xEC, 0xCF, 0xF3, /* 0x10-0x13 */
+	0xAC, 0xE3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0xAF, 0x7C, 0x00, 0x00, 0xAF, 0xA4, /* 0x1C-0x1F */
+	0xAF, 0xA3, 0xD2, 0xE1, 0xD2, 0xDB, 0xD2, 0xD9, /* 0x20-0x23 */
+	0x00, 0x00, 0xAF, 0xA1, 0xD6, 0xB9, 0xAF, 0x7A, /* 0x24-0x27 */
+	0xD2, 0xDE, 0xD2, 0xE2, 0xD2, 0xE4, 0xD2, 0xE0, /* 0x28-0x2B */
+	0xD2, 0xDA, 0xAF, 0xA2, 0xD2, 0xDF, 0xD2, 0xDD, /* 0x2C-0x2F */
+	0xAF, 0x79, 0xD2, 0xE5, 0xAF, 0xA5, 0xD2, 0xE3, /* 0x30-0x33 */
+	0xAF, 0x7D, 0xD2, 0xDC, 0x00, 0x00, 0xAF, 0x7E, /* 0x34-0x37 */
+	0xAF, 0x7B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB2, 0xB9, /* 0x40-0x43 */
+	0x00, 0x00, 0xD6, 0xBA, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0xD6, 0xB3, 0xD6, 0xB5, 0xD6, 0xB7, 0x00, 0x00, /* 0x48-0x4B */
+	0xD6, 0xB8, 0xD6, 0xB6, 0xB2, 0xBA, 0x00, 0x00, /* 0x4C-0x4F */
+	0xD6, 0xBB, 0x00, 0x00, 0xD6, 0xB4, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0xDA, 0xC8, 0xB5, 0x76, 0xDA, 0xD0, 0x00, 0x00, /* 0x5C-0x5F */
+	0xDA, 0xC5, 0x00, 0x00, 0xDA, 0xD1, 0x00, 0x00, /* 0x60-0x63 */
+	0xDA, 0xC6, 0xDA, 0xC7, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0xDA, 0xCF, 0xDA, 0xCE, 0xDA, 0xCB, 0xB2, 0xB8, /* 0x68-0x6B */
+	0xB5, 0x77, 0xDA, 0xC9, 0xDA, 0xCC, 0xB5, 0x78, /* 0x6C-0x6F */
+	0xDA, 0xCD, 0xDA, 0xCA, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0xDE, 0xEE, 0x00, 0x00, 0xDE, 0xF2, /* 0x78-0x7B */
+	0xB8, 0x4E, 0x00, 0x00, 0xE2, 0xF0, 0xB8, 0x51, /* 0x7C-0x7F */
+	
+	0xDE, 0xF0, 0xF9, 0xD6, 0x00, 0x00, 0xDE, 0xED, /* 0x80-0x83 */
+	0xDE, 0xE8, 0xDE, 0xEA, 0xDE, 0xEB, 0xDE, 0xE4, /* 0x84-0x87 */
+	0x00, 0x00, 0xB8, 0x4D, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0xB8, 0x4C, 0x00, 0x00, 0xB8, 0x48, 0xDE, 0xE7, /* 0x8C-0x8F */
+	0x00, 0x00, 0xB8, 0x4F, 0x00, 0x00, 0xB8, 0x50, /* 0x90-0x93 */
+	0xDE, 0xE6, 0xDE, 0xE9, 0xDE, 0xF1, 0xB8, 0x4A, /* 0x94-0x97 */
+	0xB8, 0x4B, 0xDE, 0xEF, 0xDE, 0xE5, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0xE2, 0xF2, 0xBA, 0xD0, /* 0x9C-0x9F */
+	0xE2, 0xF4, 0xDE, 0xEC, 0xE2, 0xF6, 0xBA, 0xD4, /* 0xA0-0xA3 */
+	0xE2, 0xF7, 0xE2, 0xF3, 0x00, 0x00, 0xBA, 0xD1, /* 0xA4-0xA7 */
+	0xE2, 0xEF, 0xBA, 0xD3, 0xE2, 0xEC, 0xE2, 0xF1, /* 0xA8-0xAB */
+	0xE2, 0xF5, 0xE2, 0xEE, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0xB8, 0x49, 0x00, 0x00, 0xE2, 0xEB, 0xBA, 0xD2, /* 0xB0-0xB3 */
+	0xE2, 0xED, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0xBD, 0x54, 0xE6, 0xC1, /* 0xB8-0xBB */
+	0xBD, 0x58, 0x00, 0x00, 0xBD, 0x56, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0xBA, 0xCF, 0x00, 0x00, 0xE6, 0xC8, /* 0xC0-0xC3 */
+	0xE6, 0xC9, 0xBD, 0x53, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0xE6, 0xC7, 0xE6, 0xCA, 0xBD, 0x55, 0xBD, 0x52, /* 0xC8-0xCB */
+	0xE6, 0xC3, 0xE6, 0xC0, 0xE6, 0xC5, 0xE6, 0xC2, /* 0xCC-0xCF */
+	0xBD, 0x59, 0xE6, 0xC4, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xE6, 0xC6, 0xBD, 0x57, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0xBF, 0x6A, 0xEA, 0xA8, /* 0xD8-0xDB */
+	0x00, 0x00, 0xEA, 0xA2, 0xEA, 0xA6, 0xEA, 0xAC, /* 0xDC-0xDF */
+	0xEA, 0xAD, 0xEA, 0xA9, 0xEA, 0xAA, 0xEA, 0xA7, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xEA, 0xA4, 0x00, 0x00, 0xBF, 0x6C, /* 0xE4-0xE7 */
+	0xBF, 0x69, 0xEA, 0xA3, 0xEA, 0xA5, 0x00, 0x00, /* 0xE8-0xEB */
+	0xBF, 0x6B, 0xEA, 0xAB, 0x00, 0x00, 0xC1, 0x46, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0xED, 0xAA, 0xED, 0xA5, /* 0xF0-0xF3 */
+	0xC1, 0x45, 0x00, 0x00, 0x00, 0x00, 0xC1, 0x43, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xED, 0xAC, 0xC1, 0x44, 0xED, 0xA8, /* 0xF8-0xFB */
+	0xED, 0xA9, 0xED, 0xA6, 0xED, 0xAD, 0xF0, 0x56, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_79[512] = {
+	0x00, 0x00, 0xC1, 0x47, 0xED, 0xA7, 0x00, 0x00, /* 0x00-0x03 */
+	0xED, 0xAE, 0xED, 0xAB, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0xF0, 0x5A, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0xF0, 0x57, 0x00, 0x00, 0xC2, 0xA6, 0x00, 0x00, /* 0x0C-0x0F */
+	0xF0, 0x5B, 0xF0, 0x5D, 0xF0, 0x5C, 0xF0, 0x58, /* 0x10-0x13 */
+	0xF0, 0x59, 0x00, 0x00, 0x00, 0x00, 0xF2, 0xA3, /* 0x14-0x17 */
+	0x00, 0x00, 0xC3, 0xAA, 0x00, 0x00, 0xF2, 0x7E, /* 0x18-0x1B */
+	0xF2, 0xA2, 0xF2, 0x7D, 0xF2, 0xA4, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0xF2, 0xA1, 0x00, 0x00, 0xF4, 0x7A, /* 0x20-0x23 */
+	0xF4, 0x7D, 0xF4, 0x79, 0xC4, 0x71, 0xF4, 0x7B, /* 0x24-0x27 */
+	0xF4, 0x7C, 0xF4, 0x7E, 0xC4, 0x72, 0xC4, 0x74, /* 0x28-0x2B */
+	0xC4, 0x73, 0xF5, 0xE1, 0x00, 0x00, 0xF5, 0xE3, /* 0x2C-0x2F */
+	0x00, 0x00, 0xF5, 0xE2, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0xF6, 0xF6, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0xF8, 0xB5, 0xF8, 0xFA, 0xA5, 0xDC, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0xCB, 0x72, 0xAA, 0xC0, 0xCD, 0xA3, /* 0x3C-0x3F */
+	0xAA, 0xC1, 0xAA, 0xC2, 0xCD, 0xA2, 0x00, 0x00, /* 0x40-0x43 */
+	0xCF, 0xF8, 0xCF, 0xF7, 0xAC, 0xE6, 0xAC, 0xE9, /* 0x44-0x47 */
+	0xAC, 0xE8, 0xAC, 0xE7, 0xCF, 0xF4, 0xCF, 0xF6, /* 0x48-0x4B */
+	0xCF, 0xF5, 0x00, 0x00, 0x00, 0x00, 0xD2, 0xE8, /* 0x4C-0x4F */
+	0xAF, 0xA7, 0xD2, 0xEC, 0xD2, 0xEB, 0xD2, 0xEA, /* 0x50-0x53 */
+	0xD2, 0xE6, 0xAF, 0xA6, 0xAF, 0xAA, 0xAF, 0xAD, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0xAF, 0xAE, 0xD2, 0xE7, /* 0x58-0x5B */
+	0xD2, 0xE9, 0xAF, 0xAC, 0xAF, 0xAB, 0xAF, 0xA9, /* 0x5C-0x5F */
+	0xAF, 0xA8, 0xD6, 0xC2, 0x00, 0x00, 0xD6, 0xC0, /* 0x60-0x63 */
+	0xD6, 0xBC, 0xB2, 0xBB, 0x00, 0x00, 0xD6, 0xBD, /* 0x64-0x67 */
+	0xB2, 0xBC, 0xD6, 0xBE, 0xD6, 0xBF, 0xD6, 0xC1, /* 0x68-0x6B */
+	0x00, 0x00, 0xB2, 0xBD, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0xDA, 0xD5, 0x00, 0x00, 0xDA, 0xD4, 0xDA, 0xD3, /* 0x70-0x73 */
+	0xDA, 0xD2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0xDE, 0xF6, 0xB8, 0x52, 0x00, 0x00, /* 0x78-0x7B */
+	0xDE, 0xF3, 0xDE, 0xF5, 0x00, 0x00, 0xB8, 0x53, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xB8, 0x54, 0xDE, 0xF4, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0xE3, 0x41, 0x00, 0x00, 0xE2, 0xF9, 0xE2, 0xFA, /* 0x88-0x8B */
+	0x00, 0x00, 0xBA, 0xD7, 0xBA, 0xD5, 0xBA, 0xD6, /* 0x8C-0x8F */
+	0xE3, 0x43, 0x00, 0x00, 0xE3, 0x42, 0xE2, 0xFE, /* 0x90-0x93 */
+	0xE2, 0xFD, 0xE2, 0xFC, 0xE2, 0xFB, 0xE3, 0x40, /* 0x94-0x97 */
+	0xE2, 0xF8, 0x00, 0x00, 0xE6, 0xCB, 0xE6, 0xD0, /* 0x98-0x9B */
+	0xE6, 0xCE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0xE6, 0xCD, 0xE6, 0xCC, 0xE6, 0xCF, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xEA, 0xAE, 0x00, 0x00, 0xBF, 0x6D, 0xC1, 0x48, /* 0xA4-0xA7 */
+	0xED, 0xB0, 0x00, 0x00, 0xC1, 0x49, 0xED, 0xAF, /* 0xA8-0xAB */
+	0xF0, 0x5F, 0xF0, 0x5E, 0xC2, 0xA7, 0x00, 0x00, /* 0xAC-0xAF */
+	0xF2, 0xA5, 0xC3, 0xAB, 0xF4, 0xA1, 0xC5, 0xA1, /* 0xB0-0xB3 */
+	0xF6, 0xF7, 0x00, 0x00, 0xF8, 0xB7, 0xF8, 0xB6, /* 0xB4-0xB7 */
+	0xC9, 0xA8, 0xAC, 0xEA, 0xAC, 0xEB, 0xD6, 0xC3, /* 0xB8-0xBB */
+	0x00, 0x00, 0xB8, 0x56, 0xA5, 0xDD, 0xA8, 0x72, /* 0xBC-0xBF */
+	0xA8, 0x71, 0xA8, 0x70, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xCD, 0xA4, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0xAA, 0xC4, 0xAA, 0xC3, 0x00, 0x00, 0xAC, 0xEE, /* 0xC8-0xCB */
+	0x00, 0x00, 0xCF, 0xFA, 0xCF, 0xFD, 0xCF, 0xFB, /* 0xCC-0xCF */
+	0x00, 0x00, 0xAC, 0xEC, 0xAC, 0xED, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xCF, 0xF9, 0xCF, 0xFC, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xAF, 0xB5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0xD2, 0xF3, 0xD2, 0xF5, 0xD2, 0xF4, 0xAF, 0xB2, /* 0xDC-0xDF */
+	0xD2, 0xEF, 0x00, 0x00, 0x00, 0x00, 0xAF, 0xB0, /* 0xE0-0xE3 */
+	0xAF, 0xAF, 0x00, 0x00, 0xAF, 0xB3, 0xAF, 0xB1, /* 0xE4-0xE7 */
+	0x00, 0x00, 0xAF, 0xB4, 0xD2, 0xF2, 0xD2, 0xED, /* 0xE8-0xEB */
+	0xD2, 0xEE, 0xD2, 0xF1, 0xD2, 0xF0, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0xD6, 0xC6, 0xD6, 0xC7, /* 0xF4-0xF7 */
+	0xD6, 0xC5, 0x00, 0x00, 0xD6, 0xC4, 0xB2, 0xBE, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_7A[512] = {
+	0xB5, 0x7D, 0x00, 0x00, 0xDA, 0xD6, 0xDA, 0xD8, /* 0x00-0x03 */
+	0xDA, 0xDA, 0xB5, 0x7C, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0xB5, 0x7A, 0x00, 0x00, 0xDA, 0xD7, 0xB5, 0x7B, /* 0x08-0x0B */
+	0xDA, 0xD9, 0xB5, 0x79, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0xDF, 0x41, 0xDE, 0xF7, 0xDE, 0xFA, 0xDE, 0xFE, /* 0x10-0x13 */
+	0xB8, 0x5A, 0xDE, 0xFC, 0x00, 0x00, 0xDE, 0xFB, /* 0x14-0x17 */
+	0xDE, 0xF8, 0xDE, 0xF9, 0xB8, 0x58, 0xDF, 0x40, /* 0x18-0x1B */
+	0xB8, 0x57, 0x00, 0x00, 0xB8, 0x5C, 0xB8, 0x5B, /* 0x1C-0x1F */
+	0xB8, 0x59, 0x00, 0x00, 0xDE, 0xFD, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0x49, 0x00, 0x00, /* 0x24-0x27 */
+	0xE3, 0x48, 0x00, 0x00, 0x00, 0x00, 0xE3, 0x44, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0xBA, 0xD8, 0xE3, 0x47, /* 0x2C-0x2F */
+	0xE3, 0x46, 0xBA, 0xD9, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xBD, 0x5E, /* 0x34-0x37 */
+	0x00, 0x00, 0xE6, 0xD2, 0x00, 0x00, 0xBD, 0x5F, /* 0x38-0x3B */
+	0xBD, 0x5B, 0xBD, 0x5D, 0x00, 0x00, 0xBD, 0x5A, /* 0x3C-0x3F */
+	0xBD, 0x5C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0xEA, 0xAF, 0x00, 0x00, 0xBF, 0x70, 0xEA, 0xB1, /* 0x44-0x47 */
+	0xEA, 0xB0, 0x00, 0x00, 0xE3, 0x45, 0xBF, 0x72, /* 0x48-0x4B */
+	0xBF, 0x71, 0xBF, 0x6E, 0xBF, 0x6F, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0xED, 0xB5, 0x00, 0x00, 0xED, 0xB3, 0xC1, 0x4A, /* 0x54-0x57 */
+	0xED, 0xB4, 0x00, 0x00, 0xED, 0xB6, 0xED, 0xB2, /* 0x58-0x5B */
+	0xED, 0xB1, 0x00, 0x00, 0x00, 0x00, 0xF0, 0x60, /* 0x5C-0x5F */
+	0xC2, 0xAA, 0xC2, 0xA8, 0xC2, 0xA9, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF2, 0xA6, /* 0x64-0x67 */
+	0xF2, 0xA7, 0xC3, 0xAD, 0x00, 0x00, 0xC3, 0xAC, /* 0x68-0x6B */
+	0xF4, 0xA3, 0xF4, 0xA4, 0xF4, 0xA2, 0x00, 0x00, /* 0x6C-0x6F */
+	0xF6, 0xF8, 0xF6, 0xF9, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0xA5, 0xDE, 0xCA, 0x48, 0xA8, 0x73, 0x00, 0x00, /* 0x74-0x77 */
+	0xCD, 0xA5, 0xAA, 0xC6, 0xAA, 0xC5, 0xCD, 0xA6, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0xD0, 0x40, 0xAC, 0xEF, /* 0x7C-0x7F */
+	
+	0xCF, 0xFE, 0xAC, 0xF0, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0xAF, 0xB6, 0xD2, 0xF8, 0xD2, 0xF6, 0xD2, 0xFC, /* 0x84-0x87 */
+	0xAF, 0xB7, 0xD2, 0xF7, 0xD2, 0xFB, 0xD2, 0xF9, /* 0x88-0x8B */
+	0xD2, 0xFA, 0x00, 0x00, 0x00, 0x00, 0xD6, 0xC8, /* 0x8C-0x8F */
+	0xD6, 0xCA, 0x00, 0x00, 0xB2, 0xBF, 0x00, 0x00, /* 0x90-0x93 */
+	0xD6, 0xC9, 0xB2, 0xC0, 0xB5, 0xA2, 0xB5, 0xA1, /* 0x94-0x97 */
+	0xB5, 0x7E, 0xDA, 0xDB, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0xDF, 0x44, 0xB8, 0x5D, /* 0x9C-0x9F */
+	0xB8, 0x5E, 0x00, 0x00, 0xDF, 0x43, 0xDF, 0x42, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xE3, 0x4A, 0xBA, 0xDB, 0xBA, 0xDA, 0xE3, 0x4B, /* 0xA8-0xAB */
+	0xE3, 0x4C, 0x00, 0x00, 0xBD, 0x61, 0xBD, 0x60, /* 0xAC-0xAF */
+	0x00, 0x00, 0xEA, 0xB5, 0xE6, 0xD3, 0xE6, 0xD5, /* 0xB0-0xB3 */
+	0xE6, 0xD4, 0xEA, 0xB4, 0xEA, 0xB2, 0xEA, 0xB6, /* 0xB4-0xB7 */
+	0xEA, 0xB3, 0x00, 0x00, 0xBF, 0x73, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0xED, 0xB7, 0xC1, 0x4B, /* 0xBC-0xBF */
+	0xED, 0xB8, 0xED, 0xB9, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xC2, 0xAB, 0xC2, 0xAC, 0x00, 0x00, 0xC4, 0x75, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0xC5, 0xD1, 0xA5, 0xDF, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0xD0, 0x41, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xD2, 0xFD, 0xAF, 0xB8, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB3, 0xBA, /* 0xDC-0xDF */
+	0xB3, 0xB9, 0x00, 0x00, 0x00, 0x00, 0xB5, 0xA4, /* 0xE0-0xE3 */
+	0xDA, 0xDD, 0xB5, 0xA3, 0xDA, 0xDC, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDF, 0x45, /* 0xE8-0xEB */
+	0x00, 0x00, 0xBA, 0xDC, 0xE3, 0x4D, 0xBA, 0xDD, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0xC4, 0x76, 0xF4, 0xA5, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xA6, 0xCB, 0xAA, 0xC7, 0xCD, 0xA7, /* 0xF8-0xFB */
+	0x00, 0x00, 0xAC, 0xF2, 0x00, 0x00, 0xAC, 0xF1, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_7B[512] = {
+	0xD0, 0x42, 0xD0, 0x43, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0xD3, 0x40, 0xD3, 0x42, 0xAF, 0xB9, 0x00, 0x00, /* 0x04-0x07 */
+	0xD3, 0x44, 0xD3, 0x47, 0xD3, 0x45, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0xD3, 0x46, 0xD3, 0x43, /* 0x0C-0x0F */
+	0xD2, 0xFE, 0xAF, 0xBA, 0xD3, 0x48, 0xD3, 0x41, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0xD6, 0xD3, 0xB2, 0xC6, 0xD6, 0xDC, 0xB2, 0xC3, /* 0x18-0x1B */
+	0x00, 0x00, 0xD6, 0xD5, 0xB2, 0xC7, 0x00, 0x00, /* 0x1C-0x1F */
+	0xB2, 0xC1, 0x00, 0x00, 0xD6, 0xD0, 0xD6, 0xDD, /* 0x20-0x23 */
+	0xD6, 0xD1, 0xD6, 0xCE, 0xB2, 0xC5, 0x00, 0x00, /* 0x24-0x27 */
+	0xB2, 0xC2, 0x00, 0x00, 0xD6, 0xD4, 0xD6, 0xD7, /* 0x28-0x2B */
+	0xB2, 0xC4, 0xD6, 0xD8, 0xB2, 0xC8, 0xD6, 0xD9, /* 0x2C-0x2F */
+	0xD6, 0xCF, 0xD6, 0xD6, 0xD6, 0xDA, 0xD6, 0xD2, /* 0x30-0x33 */
+	0xD6, 0xCD, 0xD6, 0xCB, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0xD6, 0xDB, 0x00, 0x00, 0x00, 0x00, 0xDA, 0xDF, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0xDA, 0xE4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0xDA, 0xE0, 0xDA, 0xE6, 0xB5, 0xA7, 0xD6, 0xCC, /* 0x44-0x47 */
+	0xDA, 0xE1, 0xB5, 0xA5, 0xDA, 0xDE, 0xB5, 0xAC, /* 0x48-0x4B */
+	0xDA, 0xE2, 0xB5, 0xAB, 0xDA, 0xE3, 0xB5, 0xAD, /* 0x4C-0x4F */
+	0xB5, 0xA8, 0xB5, 0xAE, 0xB5, 0xA9, 0x00, 0x00, /* 0x50-0x53 */
+	0xB5, 0xAA, 0x00, 0x00, 0xB5, 0xA6, 0x00, 0x00, /* 0x54-0x57 */
+	0xDA, 0xE5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0xB8, 0x61, 0xDF, 0x50, 0x00, 0x00, 0xDF, 0x53, /* 0x60-0x63 */
+	0xDF, 0x47, 0xDF, 0x4C, 0xDF, 0x46, 0xB8, 0x63, /* 0x64-0x67 */
+	0x00, 0x00, 0xDF, 0x4A, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0xDF, 0x48, 0xB8, 0x62, 0x00, 0x00, /* 0x6C-0x6F */
+	0xDF, 0x4F, 0xDF, 0x4E, 0xDF, 0x4B, 0xDF, 0x4D, /* 0x70-0x73 */
+	0xDF, 0x49, 0xBA, 0xE1, 0xDF, 0x52, 0xB8, 0x5F, /* 0x74-0x77 */
+	0xDF, 0x51, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0x5D, 0x00, 0x00, /* 0x80-0x83 */
+	0xBA, 0xE8, 0xE3, 0x58, 0x00, 0x00, 0xBA, 0xE7, /* 0x84-0x87 */
+	0xE3, 0x4E, 0x00, 0x00, 0xE3, 0x50, 0xBA, 0xE0, /* 0x88-0x8B */
+	0xE3, 0x55, 0xE3, 0x54, 0xE3, 0x57, 0xBA, 0xE5, /* 0x8C-0x8F */
+	0xE3, 0x52, 0xE3, 0x51, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0xBA, 0xE4, 0xBA, 0xDF, 0xE3, 0x53, 0xBA, 0xE2, /* 0x94-0x97 */
+	0xE3, 0x59, 0xE3, 0x5B, 0x00, 0x00, 0xE3, 0x56, /* 0x98-0x9B */
+	0xE3, 0x4F, 0xBA, 0xE3, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0xBD, 0x69, 0xBA, 0xDE, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xE3, 0x5C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0xE6, 0xD9, 0xBD, 0x62, 0x00, 0x00, 0xE6, 0xDB, /* 0xAC-0xAF */
+	0x00, 0x00, 0xBD, 0x63, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0xBD, 0x65, 0xE6, 0xDE, 0x00, 0x00, 0xE6, 0xD6, /* 0xB4-0xB7 */
+	0xBA, 0xE6, 0xE6, 0xDC, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0xD8, 0x00, 0x00, /* 0xBC-0xBF */
+	0xB8, 0x60, 0xBD, 0x68, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xBD, 0x64, 0x00, 0x00, 0xBD, 0x66, 0xBD, 0x67, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xBF, 0x76, 0xE6, 0xDD, 0xE6, 0xD7, /* 0xC8-0xCB */
+	0xBD, 0x6A, 0x00, 0x00, 0xE6, 0xDA, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xEA, 0xC0, 0xEA, 0xBB, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xEA, 0xC5, 0xBF, 0x74, 0xEA, 0xBD, 0xBF, 0x78, /* 0xD8-0xDB */
+	0xEA, 0xC3, 0xEA, 0xBA, 0xEA, 0xB7, 0xEA, 0xC6, /* 0xDC-0xDF */
+	0xC1, 0x51, 0xBF, 0x79, 0xEA, 0xC2, 0xEA, 0xB8, /* 0xE0-0xE3 */
+	0xBF, 0x77, 0xEA, 0xBC, 0xBF, 0x7B, 0xEA, 0xB9, /* 0xE4-0xE7 */
+	0xEA, 0xBE, 0xBF, 0x7A, 0xEA, 0xC1, 0xEA, 0xC4, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0xED, 0xCB, 0xED, 0xCC, 0xED, 0xBC, 0xED, 0xC3, /* 0xF0-0xF3 */
+	0xED, 0xC1, 0x00, 0x00, 0x00, 0x00, 0xC1, 0x4F, /* 0xF4-0xF7 */
+	0xED, 0xC8, 0xEA, 0xBF, 0x00, 0x00, 0xED, 0xBF, /* 0xF8-0xFB */
+	0x00, 0x00, 0xED, 0xC9, 0xC1, 0x4E, 0xED, 0xBE, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_7C[512] = {
+	0xED, 0xBD, 0xED, 0xC7, 0xED, 0xC4, 0xED, 0xC6, /* 0x00-0x03 */
+	0x00, 0x00, 0xED, 0xBA, 0xED, 0xCA, 0xC1, 0x4C, /* 0x04-0x07 */
+	0x00, 0x00, 0xED, 0xC5, 0xED, 0xCE, 0xED, 0xC2, /* 0x08-0x0B */
+	0xC1, 0x50, 0xC1, 0x4D, 0xED, 0xC0, 0xED, 0xBB, /* 0x0C-0x0F */
+	0xED, 0xCD, 0xBF, 0x75, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0xF0, 0x63, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0xF0, 0x61, 0xF0, 0x67, 0xC2, 0xB0, 0xF0, 0x65, /* 0x1C-0x1F */
+	0xF0, 0x64, 0xC2, 0xB2, 0xF0, 0x6A, 0xC2, 0xB1, /* 0x20-0x23 */
+	0x00, 0x00, 0xF0, 0x6B, 0xF0, 0x68, 0xC2, 0xAE, /* 0x24-0x27 */
+	0xF0, 0x69, 0xF0, 0x62, 0xC2, 0xAF, 0xC2, 0xAD, /* 0x28-0x2B */
+	0xF2, 0xAB, 0xF0, 0x66, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xF0, 0x6C, 0x00, 0x00, 0x00, 0x00, 0xF2, 0xA8, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC3, 0xB2, /* 0x34-0x37 */
+	0xC3, 0xB0, 0xF2, 0xAA, 0x00, 0x00, 0xF2, 0xAC, /* 0x38-0x3B */
+	0xF2, 0xA9, 0xC3, 0xB1, 0xC3, 0xAE, 0xC3, 0xAF, /* 0x3C-0x3F */
+	0xC3, 0xB3, 0x00, 0x00, 0x00, 0x00, 0xC4, 0x78, /* 0x40-0x43 */
+	0x00, 0x00, 0xF4, 0xAA, 0x00, 0x00, 0xF4, 0xA9, /* 0x44-0x47 */
+	0xF4, 0xA7, 0xF4, 0xA6, 0xF4, 0xA8, 0x00, 0x00, /* 0x48-0x4B */
+	0xC4, 0x77, 0xC4, 0x79, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0xC4, 0xF0, 0x00, 0x00, 0x00, 0x00, 0xF5, 0xE5, /* 0x50-0x53 */
+	0xF5, 0xE4, 0x00, 0x00, 0x00, 0x00, 0xF6, 0xFA, /* 0x54-0x57 */
+	0x00, 0x00, 0xF6, 0xFC, 0xF6, 0xFE, 0xF6, 0xFD, /* 0x58-0x5B */
+	0xF6, 0xFB, 0x00, 0x00, 0x00, 0x00, 0xC5, 0xA3, /* 0x5C-0x5F */
+	0xC5, 0xA2, 0x00, 0x00, 0x00, 0x00, 0xC5, 0xD3, /* 0x60-0x63 */
+	0xC5, 0xD2, 0xC5, 0xD4, 0xF7, 0xED, 0xF7, 0xEC, /* 0x64-0x67 */
+	0x00, 0x00, 0xF8, 0xFB, 0xF8, 0xB8, 0xF8, 0xFC, /* 0x68-0x6B */
+	0xC6, 0x58, 0x00, 0x00, 0xC6, 0x59, 0xF9, 0x6D, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0xC6, 0x7E, 0xA6, 0xCC, /* 0x70-0x73 */
+	0x00, 0x00, 0xCD, 0xA8, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0xD0, 0x45, 0xD0, 0x46, 0xD0, 0x44, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0xAC, 0xF3, 0x00, 0x00, 0xD0, 0x47, /* 0x7C-0x7F */
+	
+	0xD0, 0x48, 0xD0, 0x49, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0xD3, 0x49, 0xD3, 0x4F, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0xD3, 0x4D, 0xAF, 0xBB, 0xD3, 0x4B, 0x00, 0x00, /* 0x88-0x8B */
+	0xD3, 0x4C, 0xD3, 0x4E, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0xD3, 0x4A, 0xB2, 0xC9, 0x00, 0x00, /* 0x90-0x93 */
+	0xD6, 0xDE, 0xB2, 0xCB, 0xD6, 0xE0, 0xB2, 0xCA, /* 0x94-0x97 */
+	0xD6, 0xDF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0xDA, 0xE8, 0xB5, 0xAF, /* 0x9C-0x9F */
+	0x00, 0x00, 0xDA, 0xEA, 0xDA, 0xE7, 0xD6, 0xE1, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xB5, 0xB0, 0x00, 0x00, 0xF9, 0xDB, /* 0xA4-0xA7 */
+	0xDA, 0xE9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDF, 0x56, /* 0xAC-0xAF */
+	0x00, 0x00, 0xB8, 0x64, 0xDF, 0x54, 0xB8, 0x65, /* 0xB0-0xB3 */
+	0xDF, 0x55, 0xB8, 0x66, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xBA, 0xE9, 0xE3, 0x61, 0xE3, 0x5E, /* 0xB8-0xBB */
+	0xE3, 0x60, 0xBA, 0xEA, 0xBA, 0xEB, 0xE3, 0x5F, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xE6, 0xDF, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0xE6, 0xE0, 0x00, 0x00, 0xBD, 0x6B, 0xE6, 0xE2, /* 0xC8-0xCB */
+	0xE6, 0xE1, 0x00, 0x00, 0xA2, 0x61, 0x00, 0x00, /* 0xCC-0xCF */
+	0xEA, 0xCA, 0xEA, 0xCB, 0xEA, 0xC7, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xEA, 0xC8, 0xBF, 0x7C, 0xBF, 0x7D, 0xEA, 0xC9, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xC1, 0x57, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0xC1, 0x53, 0xC1, 0x58, 0xC1, 0x54, 0xC1, 0x56, /* 0xDC-0xDF */
+	0xC1, 0x52, 0x00, 0x00, 0xC1, 0x55, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC2, 0xB3, /* 0xE4-0xE7 */
+	0xED, 0xCF, 0x00, 0x00, 0xF2, 0xAE, 0x00, 0x00, /* 0xE8-0xEB */
+	0xF2, 0xAD, 0x00, 0x00, 0xF4, 0xAB, 0xC4, 0x7A, /* 0xEC-0xEF */
+	0xC4, 0x7B, 0xF7, 0x41, 0xF5, 0xE6, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xF7, 0x40, 0x00, 0x00, 0xF8, 0xFD, 0xF9, 0xA4, /* 0xF4-0xF7 */
+	0xA6, 0xCD, 0x00, 0x00, 0x00, 0x00, 0xA8, 0x74, /* 0xF8-0xFB */
+	0x00, 0x00, 0xCD, 0xA9, 0xAA, 0xC8, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_7D[512] = {
+	0xAC, 0xF6, 0xD0, 0x4C, 0xAC, 0xF4, 0xD0, 0x4A, /* 0x00-0x03 */
+	0xAC, 0xF9, 0xAC, 0xF5, 0xAC, 0xFA, 0xAC, 0xF8, /* 0x04-0x07 */
+	0xD0, 0x4B, 0xAC, 0xF7, 0xAF, 0xBF, 0xAF, 0xBE, /* 0x08-0x0B */
+	0xD3, 0x5A, 0xAF, 0xC7, 0xD3, 0x53, 0xD3, 0x59, /* 0x0C-0x0F */
+	0xAF, 0xC3, 0xD3, 0x52, 0xD3, 0x58, 0xD3, 0x56, /* 0x10-0x13 */
+	0xAF, 0xC2, 0xAF, 0xC4, 0xD3, 0x55, 0xAF, 0xBD, /* 0x14-0x17 */
+	0xD3, 0x54, 0xAF, 0xC8, 0xAF, 0xC5, 0xAF, 0xC9, /* 0x18-0x1B */
+	0xAF, 0xC6, 0xD3, 0x51, 0xD3, 0x50, 0xD3, 0x57, /* 0x1C-0x1F */
+	0xAF, 0xC0, 0xAF, 0xBC, 0xAF, 0xC1, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0xD6, 0xF0, 0xD6, 0xE9, 0x00, 0x00, 0xB5, 0xB5, /* 0x28-0x2B */
+	0xD6, 0xE8, 0x00, 0x00, 0xB2, 0xCF, 0xB2, 0xD6, /* 0x2C-0x2F */
+	0xB2, 0xD3, 0xB2, 0xD9, 0xB2, 0xD8, 0xB2, 0xD4, /* 0x30-0x33 */
+	0x00, 0x00, 0xD6, 0xE2, 0xD6, 0xE5, 0x00, 0x00, /* 0x34-0x37 */
+	0xD6, 0xE4, 0xB2, 0xD0, 0xD6, 0xE6, 0xD6, 0xEF, /* 0x38-0x3B */
+	0xB2, 0xD1, 0xD6, 0xE3, 0xD6, 0xEC, 0xD6, 0xED, /* 0x3C-0x3F */
+	0xB2, 0xD2, 0xD6, 0xEA, 0xB2, 0xD7, 0xB2, 0xCD, /* 0x40-0x43 */
+	0xB2, 0xD5, 0xD6, 0xE7, 0xB2, 0xCC, 0xD6, 0xEB, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0xD6, 0xEE, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0xDA, 0xFB, 0xDA, 0xF2, /* 0x4C-0x4F */
+	0xB5, 0xB2, 0xDA, 0xF9, 0xDA, 0xF6, 0xDA, 0xEE, /* 0x50-0x53 */
+	0xDA, 0xF7, 0xB5, 0xB4, 0xDA, 0xEF, 0x00, 0x00, /* 0x54-0x57 */
+	0xDA, 0xEB, 0x00, 0x00, 0x00, 0x00, 0xB8, 0x6C, /* 0x58-0x5B */
+	0xDA, 0xF4, 0x00, 0x00, 0xB5, 0xB1, 0xDA, 0xFA, /* 0x5C-0x5F */
+	0x00, 0x00, 0xB5, 0xB8, 0xB5, 0xBA, 0xDA, 0xED, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0xB5, 0xB9, 0xDA, 0xF0, /* 0x64-0x67 */
+	0xB5, 0xB3, 0xDA, 0xF8, 0xDA, 0xF1, 0xDA, 0xF5, /* 0x68-0x6B */
+	0x00, 0x00, 0xDA, 0xF3, 0xB5, 0xB6, 0xDA, 0xEC, /* 0x6C-0x6F */
+	0xB5, 0xBB, 0xB2, 0xCE, 0xB5, 0xB7, 0xB5, 0xBC, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0xB8, 0x68, 0xDF, 0x5D, 0xDF, 0x5F, /* 0x78-0x7B */
+	0xDF, 0x61, 0xDF, 0x65, 0x00, 0x00, 0xDF, 0x5B, /* 0x7C-0x7F */
+	
+	0xDF, 0x59, 0xB8, 0x6A, 0x00, 0x00, 0xDF, 0x60, /* 0x80-0x83 */
+	0xDF, 0x64, 0xDF, 0x5C, 0xDF, 0x58, 0x00, 0x00, /* 0x84-0x87 */
+	0xDF, 0x57, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0xDF, 0x62, 0xDF, 0x5A, 0xDF, 0x5E, 0xB8, 0x6B, /* 0x8C-0x8F */
+	0x00, 0x00, 0xB8, 0x69, 0xDF, 0x66, 0xB8, 0x67, /* 0x90-0x93 */
+	0xDF, 0x63, 0x00, 0x00, 0xE3, 0x72, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0xBA, 0xEE, 0xE3, 0x6A, 0xBD, 0x78, 0xE3, 0x74, /* 0x9C-0x9F */
+	0xBA, 0xF1, 0xE3, 0x78, 0xBA, 0xF7, 0xE3, 0x65, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0x75, 0xE3, 0x62, /* 0xA4-0xA7 */
+	0x00, 0x00, 0xE3, 0x77, 0xE3, 0x66, 0x00, 0x00, /* 0xA8-0xAB */
+	0xBA, 0xFE, 0xBA, 0xFB, 0xE3, 0x76, 0xE3, 0x70, /* 0xAC-0xAF */
+	0xBA, 0xED, 0xBA, 0xF5, 0xBA, 0xF4, 0x00, 0x00, /* 0xB0-0xB3 */
+	0xBA, 0xF3, 0xBA, 0xF9, 0x00, 0x00, 0xE3, 0x63, /* 0xB4-0xB7 */
+	0xBA, 0xFA, 0xE3, 0x71, 0xBA, 0xF6, 0xBA, 0xEC, /* 0xB8-0xBB */
+	0xE3, 0x73, 0xBA, 0xEF, 0xBA, 0xF0, 0xBA, 0xF8, /* 0xBC-0xBF */
+	0xE3, 0x68, 0xE3, 0x67, 0xE3, 0x64, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xE3, 0x6C, 0xE3, 0x69, 0xE3, 0x6D, 0xBA, 0xFD, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xE3, 0x79, 0xBA, 0xF2, 0xE3, 0x6E, /* 0xC8-0xCB */
+	0xE3, 0x6F, 0x00, 0x00, 0xE3, 0x6B, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0xBA, 0xFC, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE6, 0xE7, /* 0xD4-0xD7 */
+	0xBD, 0x70, 0xBD, 0x79, 0xBD, 0x75, 0xE6, 0xE4, /* 0xD8-0xDB */
+	0x00, 0x00, 0xBD, 0x72, 0xBD, 0x76, 0xE6, 0xF0, /* 0xDC-0xDF */
+	0xBD, 0x6C, 0xE6, 0xE8, 0x00, 0x00, 0xBD, 0x74, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0xE6, 0xEB, 0xE6, 0xE6, /* 0xE4-0xE7 */
+	0xBD, 0x73, 0xBD, 0x77, 0xE6, 0xE5, 0x00, 0x00, /* 0xE8-0xEB */
+	0xBD, 0x71, 0x00, 0x00, 0xE6, 0xEF, 0xBD, 0x6E, /* 0xEC-0xEF */
+	0xE6, 0xEE, 0xE6, 0xED, 0xBD, 0x7A, 0xE5, 0x72, /* 0xF0-0xF3 */
+	0xBD, 0x6D, 0x00, 0x00, 0xE6, 0xEC, 0xE6, 0xE3, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xBD, 0x7B, 0xE6, 0xEA, 0xBD, 0x6F, /* 0xF8-0xFB */
+};
+
+static unsigned char u2c_7E[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE6, 0xE9, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0xBF, 0xA2, 0xBF, 0xA7, 0xBF, 0x7E, 0xEA, 0xD8, /* 0x08-0x0B */
+	0xEA, 0xCF, 0xEA, 0xDB, 0xEA, 0xD3, 0xEA, 0xD9, /* 0x0C-0x0F */
+	0xBF, 0xA8, 0xBF, 0xA1, 0xEA, 0xCC, 0xEA, 0xD2, /* 0x10-0x13 */
+	0xEA, 0xDC, 0xEA, 0xD5, 0xEA, 0xDA, 0xEA, 0xCE, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0xEA, 0xD6, 0xBF, 0xA3, /* 0x18-0x1B */
+	0xEA, 0xD4, 0xBF, 0xA6, 0xBF, 0xA5, 0xEA, 0xD0, /* 0x1C-0x1F */
+	0xEA, 0xD1, 0xEA, 0xCD, 0xEA, 0xD7, 0xBF, 0xA4, /* 0x20-0x23 */
+	0xEA, 0xDE, 0xEA, 0xDD, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0xED, 0xDA, 0xED, 0xD6, 0xC1, 0x5F, /* 0x28-0x2B */
+	0x00, 0x00, 0xED, 0xD0, 0xC1, 0x59, 0xC1, 0x69, /* 0x2C-0x2F */
+	0xED, 0xDC, 0xC1, 0x61, 0xC1, 0x5D, 0xED, 0xD3, /* 0x30-0x33 */
+	0xC1, 0x64, 0xC1, 0x67, 0xED, 0xDE, 0xC1, 0x5C, /* 0x34-0x37 */
+	0xED, 0xD5, 0xC1, 0x65, 0xED, 0xE0, 0xED, 0xDD, /* 0x38-0x3B */
+	0xED, 0xD1, 0xC1, 0x60, 0xC1, 0x5A, 0xC1, 0x68, /* 0x3C-0x3F */
+	0xED, 0xD8, 0xC1, 0x63, 0xED, 0xD2, 0xC1, 0x5E, /* 0x40-0x43 */
+	0xED, 0xDF, 0xC1, 0x62, 0xC1, 0x5B, 0xED, 0xD9, /* 0x44-0x47 */
+	0xC1, 0x66, 0xED, 0xD7, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0xED, 0xDB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0xF0, 0x6E, 0xF0, 0x74, 0xC2, 0xB9, 0xF0, 0x77, /* 0x50-0x53 */
+	0xC2, 0xB4, 0xC2, 0xB5, 0xF0, 0x6F, 0xF0, 0x76, /* 0x54-0x57 */
+	0xF0, 0x71, 0xC2, 0xBA, 0xC2, 0xB7, 0x00, 0x00, /* 0x58-0x5B */
+	0xF0, 0x6D, 0x00, 0x00, 0xC2, 0xB6, 0xF0, 0x73, /* 0x5C-0x5F */
+	0xF0, 0x75, 0xC2, 0xB8, 0xF0, 0x72, 0xF0, 0x70, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0xF2, 0xB8, 0xC3, 0xB7, 0xC3, 0xB8, 0xC3, 0xB4, /* 0x68-0x6B */
+	0x00, 0x00, 0xC3, 0xB5, 0x00, 0x00, 0xF2, 0xB4, /* 0x6C-0x6F */
+	0xF2, 0xB2, 0x00, 0x00, 0xF2, 0xB6, 0xC3, 0xBA, /* 0x70-0x73 */
+	0xF2, 0xB7, 0xF2, 0xB0, 0xF2, 0xAF, 0xF2, 0xB3, /* 0x74-0x77 */
+	0xF2, 0xB1, 0xC3, 0xB6, 0xF2, 0xB5, 0xF4, 0xAC, /* 0x78-0x7B */
+	0xC4, 0x7E, 0xC4, 0x7D, 0xF4, 0xAD, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xF4, 0xAF, 0xF4, 0xAE, 0xC4, 0xA1, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0xF5, 0xEB, 0xF5, 0xE8, /* 0x84-0x87 */
+	0xF5, 0xE9, 0x00, 0x00, 0xF5, 0xE7, 0xF5, 0xEA, /* 0x88-0x8B */
+	0xC4, 0xF2, 0xF5, 0xEC, 0x00, 0x00, 0xC4, 0xF1, /* 0x8C-0x8F */
+	0x00, 0x00, 0xF7, 0x42, 0x00, 0x00, 0xC5, 0xD5, /* 0x90-0x93 */
+	0xC5, 0xD7, 0xF7, 0xEE, 0xC5, 0xD6, 0xF8, 0xB9, /* 0x94-0x97 */
+	0xF9, 0x40, 0xF9, 0x42, 0xF8, 0xFE, 0xF9, 0x41, /* 0x98-0x9B */
+	0xC6, 0x6C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+};
+
+static unsigned char u2c_7F[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0xA6, 0xCE, 0x00, 0x00, /* 0x34-0x37 */
+	0xAC, 0xFB, 0xD2, 0x6F, 0xAF, 0xCA, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0xB2, 0xDA, 0xDA, 0xFC, 0xDA, 0xFD, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEA, 0xDF, /* 0x40-0x43 */
+	0xC1, 0x6A, 0xED, 0xE1, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0xC2, 0xBB, 0x00, 0x00, 0xF2, 0xBA, 0xF2, 0xB9, /* 0x48-0x4B */
+	0xC4, 0xA2, 0xF5, 0xED, 0x00, 0x00, 0xF7, 0x43, /* 0x4C-0x4F */
+	0xC5, 0xF8, 0xCA, 0x49, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0xAA, 0xC9, 0xA8, 0x75, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0xD0, 0x4D, 0x00, 0x00, 0x00, 0x00, 0xD3, 0x60, /* 0x58-0x5B */
+	0xD3, 0x5B, 0xD3, 0x5F, 0xD3, 0x5D, 0xAF, 0xCB, /* 0x5C-0x5F */
+	0xD3, 0x5E, 0xD3, 0x5C, 0x00, 0x00, 0xD6, 0xF1, /* 0x60-0x63 */
+	0x00, 0x00, 0xDA, 0xFE, 0xDB, 0x40, 0xDF, 0x69, /* 0x64-0x67 */
+	0xDF, 0x6A, 0xB8, 0x6E, 0xB8, 0x6F, 0xDF, 0x68, /* 0x68-0x6B */
+	0xDF, 0x6B, 0xDF, 0x67, 0xB8, 0x6D, 0x00, 0x00, /* 0x6C-0x6F */
+	0xBB, 0x40, 0x00, 0x00, 0xB8, 0x70, 0xE3, 0x7A, /* 0x70-0x73 */
+	0x00, 0x00, 0xBD, 0x7C, 0xE6, 0xF1, 0xBD, 0x7D, /* 0x74-0x77 */
+	0x00, 0x00, 0xBF, 0xA9, 0xEA, 0xE2, 0xEA, 0xE0, /* 0x78-0x7B */
+	0xEA, 0xE1, 0xED, 0xE4, 0xED, 0xE3, 0xED, 0xE2, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF2, 0xBB, /* 0x80-0x83 */
+	0x00, 0x00, 0xC3, 0xB9, 0xF2, 0xBC, 0xF7, 0x44, /* 0x84-0x87 */
+	0xC5, 0xF9, 0xF8, 0xBA, 0xA6, 0xCF, 0xAA, 0xCB, /* 0x88-0x8B */
+	0xAA, 0xCA, 0xD0, 0x4F, 0xAC, 0xFC, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0xD0, 0x4E, 0xD3, 0x62, 0x00, 0x00, /* 0x90-0x93 */
+	0xAF, 0xCC, 0xD6, 0xF2, 0xD3, 0x61, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0xB2, 0xDC, 0xD6, 0xF5, /* 0x98-0x9B */
+	0xD6, 0xF3, 0xD6, 0xF4, 0xB2, 0xDB, 0x00, 0x00, /* 0x9C-0x9F */
+	0xDB, 0x42, 0xDB, 0x43, 0xDB, 0x41, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xB8, 0x73, 0xDF, 0x6D, 0xDF, 0x6C, 0xDF, 0x6E, /* 0xA4-0xA7 */
+	0xB8, 0x72, 0xB8, 0x71, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0xE6, 0xF2, 0xE6, 0xF4, 0x00, 0x00, 0xBD, 0x7E, /* 0xAC-0xAF */
+	0xE6, 0xF3, 0xEA, 0xE3, 0xBF, 0xAA, 0xF0, 0x79, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xF0, 0x78, 0xC3, 0xBB, 0xF2, 0xBD, /* 0xB4-0xB7 */
+	0xC3, 0xBD, 0xC3, 0xBC, 0xF4, 0xB0, 0xF5, 0xEE, /* 0xB8-0xBB */
+	0xC4, 0xF3, 0xA6, 0xD0, 0xD0, 0x50, 0xAC, 0xFD, /* 0xBC-0xBF */
+	0xD3, 0x65, 0xAF, 0xCE, 0xD3, 0x64, 0xD3, 0x63, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xAF, 0xCD, 0x00, 0x00, 0xD6, 0xFB, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xD6, 0xFD, 0xD6, 0xF6, 0xD6, 0xF7, /* 0xC8-0xCB */
+	0xB2, 0xDD, 0xD6, 0xF8, 0xB2, 0xDE, 0xD6, 0xFC, /* 0xCC-0xCF */
+	0xD6, 0xF9, 0xD6, 0xFA, 0xB2, 0xDF, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xB5, 0xBE, 0xB5, 0xBF, 0x00, 0x00, 0xDB, 0x44, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDF, 0x6F, /* 0xD8-0xDB */
+	0xDF, 0x70, 0x00, 0x00, 0xE3, 0x7E, 0xBB, 0x43, /* 0xDC-0xDF */
+	0xBB, 0x41, 0xBB, 0x42, 0xE3, 0x7B, 0xE3, 0x7C, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xE3, 0x7D, 0xE6, 0xF9, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xE6, 0xFA, 0xBD, 0xA1, 0xE6, 0xF7, 0xE6, 0xF6, /* 0xE8-0xEB */
+	0xE6, 0xF8, 0xE6, 0xF5, 0xBF, 0xAD, 0xEA, 0xE4, /* 0xEC-0xEF */
+	0xBF, 0xAB, 0xBF, 0xAC, 0xED, 0xE6, 0xC1, 0x6B, /* 0xF0-0xF3 */
+	0xED, 0xE5, 0xEF, 0xA8, 0x00, 0x00, 0xF0, 0x7A, /* 0xF4-0xF7 */
+	0xF0, 0x7B, 0xC2, 0xBC, 0x00, 0x00, 0xC2, 0xBD, /* 0xF8-0xFB */
+	0xC1, 0x6C, 0xF2, 0xBE, 0xF2, 0xBF, 0xF4, 0xB1, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_80[512] = {
+	0xC4, 0xA3, 0xA6, 0xD1, 0x00, 0x00, 0xA6, 0xD2, /* 0x00-0x03 */
+	0xAC, 0xFE, 0xAA, 0xCC, 0xAF, 0xCF, 0xD0, 0x51, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB5, 0xC0, /* 0x08-0x0B */
+	0xA6, 0xD3, 0xAD, 0x41, 0xD0, 0x52, 0xD0, 0x53, /* 0x0C-0x0F */
+	0xAD, 0x40, 0xAD, 0x42, 0xA6, 0xD4, 0x00, 0x00, /* 0x10-0x13 */
+	0xD0, 0x54, 0xAF, 0xD1, 0xD3, 0x66, 0xAF, 0xD3, /* 0x14-0x17 */
+	0xAF, 0xD0, 0xAF, 0xD2, 0x00, 0x00, 0xD7, 0x41, /* 0x18-0x1B */
+	0xB2, 0xE0, 0x00, 0x00, 0xD7, 0x40, 0xD6, 0xFE, /* 0x1C-0x1F */
+	0x00, 0x00, 0xDF, 0x71, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0xE3, 0xA1, 0x00, 0x00, 0xBD, 0xA2, 0x00, 0x00, /* 0x24-0x27 */
+	0xBF, 0xAE, 0xEA, 0xE6, 0xEA, 0xE5, 0x00, 0x00, /* 0x28-0x2B */
+	0xED, 0xE7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xF5, 0xEF, 0x00, 0x00, 0x00, 0x00, 0xA6, 0xD5, /* 0x30-0x33 */
+	0xCB, 0x73, 0xCD, 0xAA, 0xAD, 0x43, 0xD0, 0x55, /* 0x34-0x37 */
+	0x00, 0x00, 0xD3, 0x68, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0xAF, 0xD4, 0xD3, 0x67, 0xAF, 0xD5, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD7, 0x43, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xB2, 0xE2, 0xD7, 0x42, /* 0x44-0x47 */
+	0xD7, 0x44, 0x00, 0x00, 0xB2, 0xE1, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDB, 0x46, /* 0x4C-0x4F */
+	0xDB, 0x47, 0xDB, 0x45, 0xB5, 0xC1, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0xB8, 0x74, 0x00, 0x00, /* 0x54-0x57 */
+	0xB8, 0x75, 0x00, 0x00, 0xBB, 0x45, 0x00, 0x00, /* 0x58-0x5B */
+	0xE3, 0xA3, 0xE3, 0xA2, 0xBB, 0x44, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0xE6, 0xFB, 0x00, 0x00, 0x00, 0x00, 0xE6, 0xFC, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0xEA, 0xE7, 0x00, 0x00, 0x00, 0x00, 0xC1, 0x70, /* 0x6C-0x6F */
+	0xC1, 0x6F, 0xC1, 0x6D, 0xC1, 0x6E, 0xC1, 0x71, /* 0x70-0x73 */
+	0x00, 0x00, 0xF0, 0x7C, 0xC2, 0xBF, 0xC2, 0xBE, /* 0x74-0x77 */
+	0xF2, 0xC0, 0xF4, 0xB2, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0xC5, 0xA5, 0xC5, 0xA4, 0xA6, 0xD6, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0xD1, 0xFB, 0x00, 0x00, /* 0x80-0x83 */
+	0xB8, 0x77, 0xB5, 0xC2, 0xB8, 0x76, 0xBB, 0x46, /* 0x84-0x87 */
+	0x00, 0x00, 0xA6, 0xD7, 0xC9, 0xA9, 0xA6, 0xD8, /* 0x88-0x8B */
+	0xA6, 0xD9, 0x00, 0x00, 0x00, 0x00, 0xCD, 0xAB, /* 0x8C-0x8F */
+	0xCB, 0x76, 0x00, 0x00, 0xCB, 0x77, 0xA8, 0x77, /* 0x90-0x93 */
+	0x00, 0x00, 0xCB, 0x74, 0xA8, 0x76, 0x00, 0x00, /* 0x94-0x97 */
+	0xA8, 0x79, 0xCB, 0x75, 0xA8, 0x7B, 0xA8, 0x7A, /* 0x98-0x9B */
+	0xCB, 0x78, 0xA8, 0x78, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0xAA, 0xD1, 0xAA, 0xCF, 0xCD, 0xAD, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xAA, 0xCE, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0xAA, 0xD3, 0xAA, 0xD5, 0xAA, 0xD2, /* 0xA8-0xAB */
+	0x00, 0x00, 0xCD, 0xB0, 0xCD, 0xAC, 0xAA, 0xD6, /* 0xAC-0xAF */
+	0x00, 0x00, 0xAA, 0xD0, 0xA8, 0x7C, 0x00, 0x00, /* 0xB0-0xB3 */
+	0xAA, 0xD4, 0xCD, 0xAF, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xCD, 0xAE, 0x00, 0x00, 0xAA, 0xCD, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0xD0, 0x5B, 0xAD, 0x47, /* 0xC0-0xC3 */
+	0xAD, 0x48, 0xD0, 0x5D, 0x00, 0x00, 0xD0, 0x57, /* 0xC4-0xC7 */
+	0xD0, 0x5A, 0xD0, 0x63, 0xD0, 0x61, 0x00, 0x00, /* 0xC8-0xCB */
+	0xAD, 0x49, 0xD0, 0x67, 0xAD, 0x4C, 0xD0, 0x64, /* 0xCC-0xCF */
+	0xD0, 0x5C, 0xD0, 0x59, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xDB, 0x49, 0xD0, 0x62, 0xAD, 0x44, 0xD0, 0x65, /* 0xD4-0xD7 */
+	0xD0, 0x56, 0xD0, 0x5F, 0xAD, 0x46, 0xAD, 0x4B, /* 0xD8-0xDB */
+	0xD0, 0x60, 0xAD, 0x4F, 0xAD, 0x4D, 0x00, 0x00, /* 0xDC-0xDF */
+	0xD0, 0x58, 0xAD, 0x4A, 0x00, 0x00, 0xD0, 0x5E, /* 0xE0-0xE3 */
+	0xAD, 0x4E, 0xAD, 0x45, 0xD0, 0x66, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0xAF, 0xDA, 0x00, 0x00, 0xAF, 0xE3, /* 0xEC-0xEF */
+	0xAF, 0xD8, 0xAF, 0xD6, 0xD3, 0x6A, 0xAF, 0xDE, /* 0xF0-0xF3 */
+	0xAF, 0xDB, 0xD3, 0x6C, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xAF, 0xDD, 0xD3, 0x6B, 0xD3, 0x69, 0xD3, 0x6E, /* 0xF8-0xFB */
+	0xAF, 0xE2, 0xAF, 0xE0, 0xDB, 0x48, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_81[512] = {
+	0xD3, 0x6F, 0xD3, 0x6D, 0xAF, 0xD7, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0xAF, 0xD9, 0xAF, 0xDC, 0x00, 0x00, /* 0x04-0x07 */
+	0xAF, 0xDF, 0x00, 0x00, 0xAF, 0xE1, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0xD7, 0x4E, 0xB2, 0xE4, 0x00, 0x00, /* 0x14-0x17 */
+	0xD7, 0x45, 0xD7, 0x47, 0x00, 0x00, 0xD7, 0x48, /* 0x18-0x1B */
+	0x00, 0x00, 0xD7, 0x50, 0xD7, 0x4C, 0xD7, 0x4A, /* 0x1C-0x1F */
+	0x00, 0x00, 0xD7, 0x4D, 0xD7, 0x51, 0xB2, 0xE5, /* 0x20-0x23 */
+	0xB2, 0xE9, 0xD7, 0x46, 0x00, 0x00, 0xD7, 0x4F, /* 0x24-0x27 */
+	0x00, 0x00, 0xB2, 0xE7, 0x00, 0x00, 0xB2, 0xE6, /* 0x28-0x2B */
+	0xD7, 0x4B, 0xD7, 0x49, 0x00, 0x00, 0xB2, 0xE3, /* 0x2C-0x2F */
+	0xB2, 0xE8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0xB5, 0xC8, 0xDB, 0x51, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0xDB, 0x4F, 0xB5, 0xCA, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDB, 0x4A, /* 0x40-0x43 */
+	0xDF, 0xA1, 0x00, 0x00, 0xB5, 0xC9, 0xDB, 0x4E, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0xDB, 0x4B, 0xB5, 0xC5, /* 0x48-0x4B */
+	0xB5, 0xCB, 0xDB, 0x50, 0xB5, 0xC7, 0xDB, 0x4D, /* 0x4C-0x4F */
+	0xBB, 0x47, 0xB5, 0xC6, 0xDB, 0x4C, 0xB5, 0xCC, /* 0x50-0x53 */
+	0xB5, 0xC4, 0xB5, 0xC3, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDF, 0x77, /* 0x58-0x5B */
+	0xDF, 0x75, 0x00, 0x00, 0xDF, 0x7B, 0x00, 0x00, /* 0x5C-0x5F */
+	0xDF, 0x73, 0xDF, 0xA2, 0xDF, 0x78, 0x00, 0x00, /* 0x60-0x63 */
+	0xDF, 0x72, 0xB8, 0x7B, 0xB8, 0xA3, 0xDF, 0x7D, /* 0x64-0x67 */
+	0x00, 0x00, 0xDF, 0x76, 0x00, 0x00, 0xB8, 0x7E, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0xB8, 0x7C, 0xDF, 0x7E, /* 0x6C-0x6F */
+	0xB8, 0x79, 0xB8, 0x78, 0xDF, 0x79, 0xB8, 0x7D, /* 0x70-0x73 */
+	0xB5, 0xCD, 0x00, 0x00, 0xDF, 0x7C, 0xDF, 0x74, /* 0x74-0x77 */
+	0xB8, 0x7A, 0xB8, 0xA1, 0xB8, 0xA2, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xBB, 0x4C, /* 0x7C-0x7F */
+	
+	0xBB, 0x48, 0x00, 0x00, 0xBB, 0x4D, 0xE3, 0xA6, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0xA5, 0xE3, 0xA7, /* 0x84-0x87 */
+	0xBB, 0x4A, 0xE3, 0xA4, 0xBB, 0x4B, 0xE3, 0xAA, /* 0x88-0x8B */
+	0xE3, 0xA9, 0xE3, 0xA8, 0x00, 0x00, 0xBB, 0x49, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0xE7, 0x41, 0x00, 0x00, 0xE7, 0x44, /* 0x94-0x97 */
+	0xBD, 0xA8, 0xE7, 0x43, 0xBD, 0xA7, 0xBD, 0xA3, /* 0x98-0x9B */
+	0xBD, 0xA4, 0xBD, 0xA5, 0xE7, 0x40, 0xE6, 0xFE, /* 0x9C-0x9F */
+	0xBD, 0xA6, 0x00, 0x00, 0xE7, 0x42, 0xE6, 0xFD, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0xEA, 0xE9, 0xEA, 0xF3, /* 0xA4-0xA7 */
+	0xBF, 0xB1, 0xBF, 0xB0, 0x00, 0x00, 0xEA, 0xED, /* 0xA8-0xAB */
+	0xEA, 0xEF, 0x00, 0x00, 0xEA, 0xEA, 0x00, 0x00, /* 0xAC-0xAF */
+	0xEA, 0xEE, 0xEA, 0xE8, 0xEA, 0xF1, 0xBF, 0xAF, /* 0xB0-0xB3 */
+	0xEA, 0xF0, 0xEA, 0xEC, 0x00, 0x00, 0xEA, 0xF2, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xEA, 0xEB, 0xC1, 0x74, 0xED, 0xE8, /* 0xB8-0xBB */
+	0xED, 0xEE, 0xC1, 0x78, 0xC1, 0x7A, 0xC1, 0x77, /* 0xBC-0xBF */
+	0xC1, 0x76, 0x00, 0x00, 0xC1, 0x75, 0xC1, 0x73, /* 0xC0-0xC3 */
+	0xED, 0xE9, 0xED, 0xEC, 0xC1, 0x72, 0xED, 0xED, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xC1, 0x79, 0xED, 0xEB, 0x00, 0x00, /* 0xC8-0xCB */
+	0xED, 0xEA, 0xC2, 0xC0, 0x00, 0x00, 0xC2, 0xC1, /* 0xCC-0xCF */
+	0xF0, 0xA1, 0xF0, 0x7D, 0xF0, 0x7E, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xF2, 0xC2, 0x00, 0x00, 0xF2, 0xC1, /* 0xD4-0xD7 */
+	0xC3, 0xBE, 0xF4, 0xB4, 0xC4, 0xA4, 0xF4, 0xB3, /* 0xD8-0xDB */
+	0x00, 0x00, 0xF5, 0xF0, 0xF7, 0x45, 0xC5, 0xA6, /* 0xDC-0xDF */
+	0xF9, 0x43, 0xF9, 0x44, 0xC5, 0xD8, 0xA6, 0xDA, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xAA, 0xD7, 0xDB, 0x52, 0xBB, 0x4E, /* 0xE4-0xE7 */
+	0xC1, 0x7B, 0xED, 0xEF, 0xA6, 0xDB, 0x00, 0x00, /* 0xE8-0xEB */
+	0xAF, 0xE5, 0xAF, 0xE4, 0xDB, 0x53, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0xEA, 0xF4, 0xA6, 0xDC, /* 0xF0-0xF3 */
+	0xAD, 0x50, 0x00, 0x00, 0x00, 0x00, 0xDB, 0x54, /* 0xF4-0xF7 */
+	0xDB, 0x55, 0xDB, 0x56, 0xBB, 0x4F, 0xBF, 0xB2, /* 0xF8-0xFB */
+	0xA6, 0xDD, 0x00, 0x00, 0xAA, 0xD8, 0xD0, 0x68, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_82[512] = {
+	0xAF, 0xE6, 0xD3, 0x70, 0xB2, 0xEA, 0x00, 0x00, /* 0x00-0x03 */
+	0xDB, 0x57, 0xB8, 0xA4, 0x00, 0x00, 0xBB, 0x50, /* 0x04-0x07 */
+	0xBF, 0xB3, 0xC1, 0x7C, 0xC2, 0xC2, 0xF4, 0xB5, /* 0x08-0x0B */
+	0xA6, 0xDE, 0xAA, 0xD9, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0xAF, 0xE7, 0xD7, 0x52, 0xB5, 0xCE, 0x00, 0x00, /* 0x10-0x13 */
+	0xBB, 0x51, 0xE3, 0xAB, 0xE7, 0x45, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA6, 0xDF, /* 0x18-0x1B */
+	0xB5, 0xCF, 0xDF, 0xA3, 0xBB, 0x52, 0xA6, 0xE0, /* 0x1C-0x1F */
+	0xCD, 0xB1, 0xD0, 0x69, 0xAD, 0x51, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0xD3, 0x72, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0xAF, 0xEA, 0x00, 0x00, 0xAF, 0xE8, 0xAF, 0xE9, /* 0x28-0x2B */
+	0xAF, 0xEB, 0x00, 0x00, 0x00, 0x00, 0xD3, 0x71, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0xD7, 0x57, 0xD7, 0x54, /* 0x30-0x33 */
+	0xD7, 0x56, 0xB2, 0xEB, 0xB2, 0xED, 0xB2, 0xEC, /* 0x34-0x37 */
+	0xD7, 0x53, 0xB2, 0xEE, 0xD7, 0x55, 0x00, 0x00, /* 0x38-0x3B */
+	0xDB, 0x58, 0xDB, 0x59, 0x00, 0x00, 0xDB, 0x5A, /* 0x3C-0x3F */
+	0xDF, 0xA6, 0x00, 0x00, 0xDF, 0xA7, 0x00, 0x00, /* 0x40-0x43 */
+	0xDF, 0xA5, 0xDF, 0xA8, 0x00, 0x00, 0xB8, 0xA5, /* 0x44-0x47 */
+	0x00, 0x00, 0xDF, 0xA4, 0x00, 0x00, 0xBB, 0x53, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0x4A, 0xE7, 0x46, /* 0x4C-0x4F */
+	0xE7, 0x49, 0xE7, 0x4B, 0xE7, 0x48, 0xE7, 0x47, /* 0x50-0x53 */
+	0x00, 0x00, 0xEA, 0xF5, 0xEA, 0xF6, 0xEA, 0xF7, /* 0x54-0x57 */
+	0xBF, 0xB4, 0xBF, 0xB5, 0xED, 0xF1, 0xED, 0xF0, /* 0x58-0x5B */
+	0xED, 0xF2, 0x00, 0x00, 0xF0, 0xA3, 0xF0, 0xA2, /* 0x5C-0x5F */
+	0x00, 0x00, 0xF2, 0xC4, 0x00, 0x00, 0xF2, 0xC5, /* 0x60-0x63 */
+	0xF2, 0xC3, 0x00, 0x00, 0xC4, 0xA5, 0x00, 0x00, /* 0x64-0x67 */
+	0xF4, 0xB6, 0xF4, 0xB7, 0x00, 0x00, 0xF7, 0x46, /* 0x68-0x6B */
+	0xF7, 0xEF, 0xF8, 0xBB, 0xA6, 0xE1, 0xA8, 0x7D, /* 0x6C-0x6F */
+	0x00, 0x00, 0xC1, 0x7D, 0xA6, 0xE2, 0x00, 0x00, /* 0x70-0x73 */
+	0xD7, 0x58, 0xDB, 0x5B, 0x00, 0x00, 0xC6, 0x41, /* 0x74-0x77 */
+	0xCA, 0x4A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0xCA, 0x4B, 0xCA, 0x4D, 0xA6, 0xE3, 0xCA, 0x4E, /* 0x7C-0x7F */
+	
+	0xCA, 0x4C, 0x00, 0x00, 0x00, 0x00, 0xCB, 0xA2, /* 0x80-0x83 */
+	0xCB, 0xA3, 0xCB, 0x7B, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0xCB, 0xA1, 0xA8, 0xA1, /* 0x88-0x8B */
+	0x00, 0x00, 0xA8, 0xA2, 0xCB, 0x7C, 0xCB, 0x7A, /* 0x8C-0x8F */
+	0xCB, 0x79, 0xCB, 0x7D, 0xA8, 0x7E, 0xCB, 0x7E, /* 0x90-0x93 */
+	0xD0, 0x6A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0xCD, 0xB6, 0xAA, 0xDC, 0xCD, 0xB5, 0xCD, 0xB7, /* 0x98-0x9B */
+	0x00, 0x00, 0xAA, 0xDB, 0xCD, 0xBC, 0xAA, 0xDF, /* 0x9C-0x9F */
+	0xCD, 0xB2, 0xCD, 0xC0, 0xCD, 0xC6, 0xAA, 0xE6, /* 0xA0-0xA3 */
+	0xCD, 0xC3, 0xAA, 0xE3, 0x00, 0x00, 0xCD, 0xB9, /* 0xA4-0xA7 */
+	0xCD, 0xBF, 0xCD, 0xC1, 0x00, 0x00, 0xCD, 0xB4, /* 0xA8-0xAB */
+	0xAA, 0xE2, 0xAA, 0xDD, 0xCD, 0xBA, 0xAA, 0xE4, /* 0xAC-0xAF */
+	0xAA, 0xE7, 0xAA, 0xE1, 0x00, 0x00, 0xAA, 0xDA, /* 0xB0-0xB3 */
+	0xCD, 0xBE, 0xCD, 0xB8, 0xCD, 0xC5, 0xAA, 0xE9, /* 0xB4-0xB7 */
+	0xAA, 0xE5, 0xAA, 0xE0, 0xCD, 0xBD, 0xAF, 0xEC, /* 0xB8-0xBB */
+	0xCD, 0xBB, 0xAA, 0xDE, 0xAA, 0xE8, 0x00, 0x00, /* 0xBC-0xBF */
+	0xCD, 0xB3, 0x00, 0x00, 0xCD, 0xC2, 0xCD, 0xC4, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0xAD, 0x62, 0xAD, 0x5C, 0xAD, 0x64, /* 0xD0-0xD3 */
+	0xAD, 0x61, 0xD0, 0x71, 0xD0, 0x74, 0xAD, 0x5D, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xD0, 0x6B, 0x00, 0x00, 0xAD, 0x56, /* 0xD8-0xDB */
+	0xAD, 0x60, 0x00, 0x00, 0xAD, 0x63, 0xAD, 0x65, /* 0xDC-0xDF */
+	0xD0, 0xA2, 0xD0, 0x77, 0x00, 0x00, 0xAD, 0x55, /* 0xE0-0xE3 */
+	0xD0, 0xA1, 0xAD, 0x59, 0xAD, 0x57, 0xAD, 0x52, /* 0xE4-0xE7 */
+	0xD0, 0x6F, 0x00, 0x00, 0xD0, 0x7E, 0xD0, 0x73, /* 0xE8-0xEB */
+	0xD0, 0x76, 0xD0, 0xA5, 0x00, 0x00, 0xAD, 0x66, /* 0xEC-0xEF */
+	0xD0, 0x7D, 0xAD, 0x5E, 0xD0, 0x78, 0xD0, 0xA4, /* 0xF0-0xF3 */
+	0xD0, 0x75, 0xD0, 0x79, 0xD0, 0x7C, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xD0, 0x6D, 0xD0, 0xA3, 0xD0, 0x7B, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0xD0, 0x6C, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_83[512] = {
+	0xD0, 0x70, 0xAD, 0x5F, 0xAD, 0x5A, 0xAD, 0x53, /* 0x00-0x03 */
+	0xAD, 0x58, 0xAD, 0x54, 0xAD, 0x67, 0xD0, 0x6E, /* 0x04-0x07 */
+	0xD3, 0xA5, 0xAD, 0x5B, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0xD0, 0x7A, 0xCE, 0x41, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xD3, 0xA8, 0xAF, 0xFA, /* 0x14-0x17 */
+	0x00, 0x00, 0xD3, 0x76, 0x00, 0x00, 0xD3, 0xA3, /* 0x18-0x1B */
+	0xD3, 0x7D, 0x00, 0x00, 0xD3, 0xB2, 0x00, 0x00, /* 0x1C-0x1F */
+	0xD3, 0xAA, 0x00, 0x00, 0xD3, 0x7E, 0x00, 0x00, /* 0x20-0x23 */
+	0xD3, 0xA9, 0xD3, 0x78, 0xD3, 0x7C, 0xD3, 0xB5, /* 0x24-0x27 */
+	0xAF, 0xFD, 0xD3, 0xAD, 0xD3, 0xA4, 0xAF, 0xED, /* 0x28-0x2B */
+	0xD3, 0xB3, 0xD3, 0x74, 0x00, 0x00, 0xD3, 0xAC, /* 0x2C-0x2F */
+	0x00, 0x00, 0xAF, 0xFC, 0xAF, 0xF7, 0xD3, 0x73, /* 0x30-0x33 */
+	0xAF, 0xF5, 0xAF, 0xF4, 0xAF, 0xF9, 0xD3, 0xAB, /* 0x34-0x37 */
+	0xAF, 0xF1, 0xAF, 0xF8, 0xD0, 0x72, 0xDB, 0x5C, /* 0x38-0x3B */
+	0xD3, 0xA6, 0x00, 0x00, 0x00, 0x00, 0xD3, 0x7A, /* 0x3C-0x3F */
+	0xAF, 0xFB, 0xD3, 0x7B, 0xD3, 0xA1, 0xAF, 0xFE, /* 0x40-0x43 */
+	0xD3, 0x75, 0xD3, 0xAF, 0x00, 0x00, 0xD3, 0xAE, /* 0x44-0x47 */
+	0xD3, 0xB6, 0xAF, 0xF3, 0xAF, 0xF0, 0xD3, 0xB4, /* 0x48-0x4B */
+	0xD3, 0xB0, 0xD3, 0xA7, 0xD3, 0xA2, 0xAF, 0xF6, /* 0x4C-0x4F */
+	0xAF, 0xF2, 0xD3, 0x77, 0xAF, 0xEE, 0xD3, 0xB1, /* 0x50-0x53 */
+	0xAF, 0xEF, 0x00, 0x00, 0xD3, 0x79, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD7, 0x5E, /* 0x70-0x73 */
+	0xD7, 0x60, 0xD7, 0x65, 0xD7, 0x79, 0xB2, 0xFC, /* 0x74-0x77 */
+	0xB2, 0xF2, 0x00, 0x00, 0xD7, 0x5D, 0xB2, 0xFD, /* 0x78-0x7B */
+	0xB2, 0xFE, 0xD7, 0x68, 0xD7, 0x6F, 0xD7, 0x75, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xD7, 0x62, 0x00, 0x00, 0xD7, 0x69, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0xB3, 0x40, 0xD7, 0x77, /* 0x84-0x87 */
+	0xD7, 0x72, 0xB2, 0xFA, 0xB2, 0xF8, 0xD7, 0x6E, /* 0x88-0x8B */
+	0xD7, 0x6A, 0xD7, 0x5C, 0xB2, 0xEF, 0xD7, 0x61, /* 0x8C-0x8F */
+	0xD7, 0x59, 0x00, 0x00, 0xB2, 0xF7, 0xB2, 0xF9, /* 0x90-0x93 */
+	0xD7, 0x66, 0xD7, 0x63, 0xB2, 0xF4, 0xD7, 0x73, /* 0x94-0x97 */
+	0xB2, 0xF1, 0xD7, 0x64, 0xD7, 0x7A, 0xD7, 0x6C, /* 0x98-0x9B */
+	0x00, 0x00, 0xD7, 0x6B, 0xB2, 0xF0, 0x00, 0x00, /* 0x9C-0x9F */
+	0xB2, 0xFB, 0x00, 0x00, 0xB2, 0xF3, 0xD7, 0x5A, /* 0xA0-0xA3 */
+	0xD7, 0x5F, 0xD7, 0x70, 0xD7, 0x76, 0xB3, 0x41, /* 0xA4-0xA7 */
+	0xD7, 0x5B, 0xD7, 0x67, 0xD7, 0x6D, 0xB2, 0xF6, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0xD7, 0x78, 0xD7, 0x71, /* 0xAC-0xAF */
+	0xD7, 0x74, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0xB2, 0xF5, 0x00, 0x00, 0xDB, 0x6C, /* 0xBC-0xBF */
+	0xDB, 0x60, 0xB5, 0xD7, 0xDB, 0x7D, 0xDB, 0xA7, /* 0xC0-0xC3 */
+	0xDB, 0xAA, 0xB5, 0xD5, 0xDB, 0x68, 0xDB, 0xA3, /* 0xC4-0xC7 */
+	0xDB, 0x69, 0xDB, 0x77, 0xB5, 0xE2, 0xDB, 0x73, /* 0xC8-0xCB */
+	0xB5, 0xDF, 0x00, 0x00, 0xDB, 0x74, 0xDB, 0x5D, /* 0xCC-0xCF */
+	0x00, 0x00, 0xDB, 0xA4, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xB5, 0xE8, 0xDB, 0xA1, 0xDB, 0x75, 0xDB, 0xAC, /* 0xD4-0xD7 */
+	0xDB, 0x70, 0xDF, 0xC8, 0x00, 0x00, 0xDB, 0xAF, /* 0xD8-0xDB */
+	0xB5, 0xE6, 0xDB, 0x6E, 0xDB, 0x7A, 0xB5, 0xE9, /* 0xDC-0xDF */
+	0xB5, 0xD4, 0xDB, 0x72, 0xDB, 0xAD, 0xDB, 0x6B, /* 0xE0-0xE3 */
+	0xDB, 0x64, 0xDB, 0x6F, 0x00, 0x00, 0xDB, 0x63, /* 0xE4-0xE7 */
+	0xDB, 0x61, 0xB5, 0xD0, 0xDB, 0xA5, 0xDB, 0x6A, /* 0xE8-0xEB */
+	0xDB, 0xA8, 0x00, 0x00, 0xDB, 0xA9, 0xB5, 0xD8, /* 0xEC-0xEF */
+	0xB5, 0xDD, 0xB5, 0xD9, 0xB5, 0xE1, 0xDB, 0x7E, /* 0xF0-0xF3 */
+	0xB5, 0xDA, 0xDB, 0x76, 0xDB, 0x66, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xB5, 0xD2, 0xDB, 0x5E, 0xDB, 0xA2, 0xDB, 0xAB, /* 0xF8-0xFB */
+	0xDB, 0x65, 0xB5, 0xE0, 0xDB, 0xB0, 0xDB, 0x71, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_84[512] = {
+	0x00, 0x00, 0xDB, 0x6D, 0x00, 0x00, 0xB5, 0xD1, /* 0x00-0x03 */
+	0xB5, 0xE5, 0x00, 0x00, 0xDB, 0x7C, 0xB5, 0xE7, /* 0x04-0x07 */
+	0x00, 0x00, 0xDB, 0x78, 0xB5, 0xDC, 0xB5, 0xD6, /* 0x08-0x0B */
+	0xB5, 0xDE, 0xB5, 0xD3, 0xB5, 0xE4, 0xDB, 0x79, /* 0x0C-0x0F */
+	0xDB, 0x67, 0xDB, 0x7B, 0xDB, 0x62, 0xDB, 0xA6, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDB, 0xAE, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDB, 0x5F, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0xDF, 0xC7, 0x00, 0x00, 0xDF, 0xDD, /* 0x28-0x2B */
+	0xB8, 0x55, 0xDF, 0xCC, 0x00, 0x00, 0xDF, 0xCA, /* 0x2C-0x2F */
+	0xDF, 0xB5, 0xB8, 0xA9, 0xDF, 0xC5, 0xDF, 0xD9, /* 0x30-0x33 */
+	0xDF, 0xC1, 0xB8, 0xB1, 0xDF, 0xD8, 0xDF, 0xBF, /* 0x34-0x37 */
+	0xB5, 0xE3, 0xDF, 0xCF, 0xDF, 0xC0, 0xDF, 0xD6, /* 0x38-0x3B */
+	0xB8, 0xB0, 0xB8, 0xA8, 0x00, 0x00, 0xDF, 0xAA, /* 0x3C-0x3F */
+	0xDF, 0xB2, 0x00, 0x00, 0xDF, 0xCB, 0xDF, 0xC3, /* 0x40-0x43 */
+	0xDF, 0xDC, 0xDF, 0xC6, 0xB8, 0xB6, 0xDF, 0xD7, /* 0x44-0x47 */
+	0x00, 0x00, 0xB8, 0xAD, 0x00, 0x00, 0xDF, 0xC9, /* 0x48-0x4B */
+	0xDF, 0xD1, 0xDF, 0xB6, 0xDF, 0xD0, 0x00, 0x00, /* 0x4C-0x4F */
+	0xDF, 0xE1, 0xDF, 0xB1, 0xDF, 0xD2, 0x00, 0x00, /* 0x50-0x53 */
+	0xDF, 0xDF, 0x00, 0x00, 0xDF, 0xAB, 0xB5, 0xDB, /* 0x54-0x57 */
+	0x00, 0x00, 0xDF, 0xB9, 0xDF, 0xB8, 0xB8, 0xAF, /* 0x58-0x5B */
+	0x00, 0x00, 0xDF, 0xBC, 0xDF, 0xBE, 0xDF, 0xCD, /* 0x5C-0x5F */
+	0xDF, 0xDE, 0xB8, 0xB2, 0x00, 0x00, 0xB8, 0xB3, /* 0x60-0x63 */
+	0x00, 0x00, 0xDF, 0xB0, 0xB8, 0xAB, 0xDF, 0xB4, /* 0x64-0x67 */
+	0xDF, 0xDA, 0xB8, 0xB4, 0x00, 0x00, 0xB8, 0xAC, /* 0x68-0x6B */
+	0xB8, 0xAE, 0xB8, 0xB5, 0xDF, 0xE0, 0xDF, 0xD3, /* 0x6C-0x6F */
+	0xDF, 0xCE, 0x00, 0x00, 0x00, 0x00, 0xDF, 0xBB, /* 0x70-0x73 */
+	0xDF, 0xBA, 0xB8, 0xAA, 0xDF, 0xAC, 0xB8, 0xA7, /* 0x74-0x77 */
+	0xDF, 0xC4, 0xDF, 0xAD, 0xDF, 0xC2, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0xDF, 0xB7, 0xDF, 0xDB, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0xB8, 0xA6, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0xDF, 0xB3, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0xDF, 0xAF, 0xDF, 0xD5, 0xDF, 0xAE, /* 0x8C-0x8F */
+	0xBB, 0x60, 0xE3, 0xD3, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0xE3, 0xC2, 0x00, 0x00, 0x00, 0x00, 0xE3, 0xAC, /* 0x94-0x97 */
+	0xE3, 0xCA, 0xBB, 0x58, 0xE3, 0xBB, 0xE3, 0xC5, /* 0x98-0x9B */
+	0xBB, 0x5B, 0xE3, 0xBE, 0xBB, 0x59, 0xE3, 0xAF, /* 0x9C-0x9F */
+	0xE3, 0xCD, 0xE3, 0xAE, 0xE3, 0xC1, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xE3, 0xAD, 0x00, 0x00, 0x00, 0x00, 0xE3, 0xBF, /* 0xA4-0xA7 */
+	0xE3, 0xC8, 0xE3, 0xC6, 0xE3, 0xBA, 0xE3, 0xB5, /* 0xA8-0xAB */
+	0xE3, 0xB3, 0x00, 0x00, 0xE3, 0xB4, 0xE3, 0xC7, /* 0xAC-0xAF */
+	0xE3, 0xD2, 0xE3, 0xBC, 0xBB, 0x5A, 0x00, 0x00, /* 0xB0-0xB3 */
+	0xE3, 0xB7, 0x00, 0x00, 0xE3, 0xCB, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xBB, 0x5D, 0xE3, 0xB6, 0xE3, 0xB0, 0xE3, 0xC0, /* 0xB8-0xBB */
+	0xBB, 0x61, 0x00, 0x00, 0x00, 0x00, 0xBB, 0x55, /* 0xBC-0xBF */
+	0xBB, 0x5E, 0xE3, 0xB8, 0xE3, 0xB2, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xBB, 0x57, 0xDF, 0xD4, 0xBB, 0x56, 0xE3, 0xC3, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xBB, 0x54, 0xBB, 0x63, 0xBB, 0x5C, /* 0xC8-0xCB */
+	0xE3, 0xC4, 0xE3, 0xB9, 0xE3, 0xB1, 0xE3, 0xCC, /* 0xCC-0xCF */
+	0xE3, 0xBD, 0xBB, 0x62, 0xE3, 0xD0, 0xBB, 0x5F, /* 0xD0-0xD3 */
+	0xE3, 0xCF, 0x00, 0x00, 0xE3, 0xC9, 0xE3, 0xCE, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, 0xD1, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE7, 0x73, /* 0xE4-0xE7 */
+	0xE7, 0x74, 0xE7, 0x67, 0xE7, 0x66, 0xE7, 0x62, /* 0xE8-0xEB */
+	0xBD, 0xB4, 0x00, 0x00, 0xBD, 0xAC, 0xE7, 0x76, /* 0xEC-0xEF */
+	0xE7, 0x75, 0xDF, 0xA9, 0xE7, 0x5F, 0xE7, 0x63, /* 0xF0-0xF3 */
+	0xE7, 0x5D, 0x00, 0x00, 0xE7, 0x70, 0xE7, 0x61, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xE7, 0x77, 0xE7, 0x5A, 0xE7, 0x58, /* 0xF8-0xFB */
+	0xE7, 0x64, 0xE7, 0x6E, 0xE7, 0x69, 0xBD, 0xB6, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_85[512] = {
+	0xE7, 0x4F, 0x00, 0x00, 0xE7, 0x6D, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0xBD, 0xB7, 0xDF, 0xBD, /* 0x04-0x07 */
+	0xE7, 0x5B, 0xE7, 0x52, 0xE7, 0x55, 0xE7, 0x7B, /* 0x08-0x0B */
+	0xE7, 0x5C, 0xE7, 0x53, 0xE7, 0x51, 0xE7, 0x4E, /* 0x0C-0x0F */
+	0x00, 0x00, 0xBD, 0xB0, 0xE7, 0x65, 0xBD, 0xAF, /* 0x10-0x13 */
+	0xBD, 0xB3, 0xE7, 0x60, 0xE7, 0x68, 0xBD, 0xA9, /* 0x14-0x17 */
+	0xE7, 0x78, 0xE7, 0x7C, 0xBD, 0xAB, 0x00, 0x00, /* 0x18-0x1B */
+	0xE7, 0x57, 0xE7, 0x6B, 0xE7, 0x6F, 0xE7, 0x54, /* 0x1C-0x1F */
+	0xE7, 0x79, 0xBD, 0xB2, 0x00, 0x00, 0xBD, 0xB1, /* 0x20-0x23 */
+	0xE7, 0x4C, 0xBD, 0xB5, 0xE7, 0x72, 0xE7, 0x56, /* 0x24-0x27 */
+	0xE7, 0x6A, 0xE7, 0x50, 0xE7, 0x5E, 0xE7, 0x59, /* 0x28-0x2B */
+	0xBD, 0xAD, 0xBD, 0xAE, 0xE7, 0x6C, 0xE7, 0x7D, /* 0x2C-0x2F */
+	0xE7, 0x7A, 0xE7, 0x71, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE7, 0x4D, /* 0x38-0x3B */
+	0x00, 0x00, 0xBD, 0xAA, 0xEB, 0x49, 0x00, 0x00, /* 0x3C-0x3F */
+	0xEB, 0x40, 0xEB, 0x43, 0x00, 0x00, 0xBF, 0xBB, /* 0x40-0x43 */
+	0xEB, 0x45, 0xEA, 0xF9, 0xEB, 0x41, 0xEB, 0x47, /* 0x44-0x47 */
+	0xBF, 0xB8, 0xBF, 0xBC, 0xBF, 0xB6, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0xEA, 0xFB, 0xEB, 0x4C, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0xEB, 0x46, 0x00, 0x00, 0xEA, 0xFC, /* 0x50-0x53 */
+	0xEB, 0x55, 0xEB, 0x4F, 0xEA, 0xF8, 0xEE, 0x46, /* 0x54-0x57 */
+	0xEA, 0xFE, 0xBF, 0xB7, 0x00, 0x00, 0xEB, 0x4A, /* 0x58-0x5B */
+	0x00, 0x00, 0xEB, 0x54, 0xBF, 0xBF, 0x00, 0x00, /* 0x5C-0x5F */
+	0xEB, 0x51, 0xEA, 0xFD, 0xEB, 0x44, 0xEB, 0x48, /* 0x60-0x63 */
+	0xEB, 0x42, 0xEB, 0x56, 0xEB, 0x53, 0xEB, 0x50, /* 0x64-0x67 */
+	0xBF, 0xB9, 0xBF, 0xBA, 0xBF, 0xBE, 0xEA, 0xFA, /* 0x68-0x6B */
+	0xEB, 0x57, 0xBF, 0xBD, 0xEB, 0x4D, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0xEB, 0x4B, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0xEB, 0x4E, 0xEE, 0x53, 0xEE, 0x40, /* 0x74-0x77 */
+	0xEE, 0x45, 0xEE, 0x52, 0xEE, 0x44, 0xED, 0xFB, /* 0x78-0x7B */
+	0xEE, 0x41, 0x00, 0x00, 0xC1, 0xA2, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xED, 0xF4, 0xEE, 0x4D, 0xEE, 0x4F, 0xED, 0xF3, /* 0x80-0x83 */
+	0xC1, 0xA1, 0xEE, 0x51, 0xEE, 0x49, 0xC1, 0xA8, /* 0x84-0x87 */
+	0xEE, 0x50, 0xEE, 0x42, 0xC1, 0xAA, 0xED, 0xF9, /* 0x88-0x8B */
+	0xEB, 0x52, 0xEE, 0x4A, 0xEE, 0x47, 0xED, 0xF5, /* 0x8C-0x8F */
+	0xEE, 0x55, 0xC1, 0xA4, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0xC1, 0xA5, 0xED, 0xF7, 0xEE, 0x48, 0x00, 0x00, /* 0x94-0x97 */
+	0xEE, 0x54, 0xEE, 0x4B, 0xED, 0xFD, 0xC1, 0xA7, /* 0x98-0x9B */
+	0xC1, 0xA3, 0xEE, 0x4C, 0xED, 0xFE, 0xEE, 0x56, /* 0x9C-0x9F */
+	0xED, 0xF8, 0xEE, 0x43, 0xEE, 0x4E, 0xED, 0xFA, /* 0xA0-0xA3 */
+	0xED, 0xFC, 0x00, 0x00, 0xC2, 0xCB, 0xED, 0xF6, /* 0xA4-0xA7 */
+	0xC1, 0xA9, 0xC2, 0xC4, 0xC1, 0x7E, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC1, 0xA6, /* 0xAC-0xAF */
+	0xC2, 0xC8, 0xF0, 0xB3, 0x00, 0x00, 0xF0, 0xA9, /* 0xB0-0xB3 */
+	0xF0, 0xA4, 0xF0, 0xAA, 0xF0, 0xB4, 0xF0, 0xB8, /* 0xB4-0xB7 */
+	0xF0, 0xB7, 0xC2, 0xCA, 0xC2, 0xC9, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0xF0, 0xAB, 0xF0, 0xB9, 0xF0, 0xAE, /* 0xBC-0xBF */
+	0xF0, 0xA6, 0x00, 0x00, 0xF0, 0xA8, 0xF0, 0xA7, /* 0xC0-0xC3 */
+	0xF0, 0xAD, 0xF0, 0xB2, 0xF0, 0xA5, 0xF0, 0xAC, /* 0xC4-0xC7 */
+	0xF0, 0xB1, 0xC2, 0xC7, 0x00, 0x00, 0xF0, 0xAF, /* 0xC8-0xCB */
+	0x00, 0x00, 0xC2, 0xC5, 0xF0, 0xB0, 0xC2, 0xC3, /* 0xCC-0xCF */
+	0xC2, 0xC6, 0xF2, 0xD5, 0xF0, 0xB5, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xC3, 0xC2, 0x00, 0x00, 0xF2, 0xCD, /* 0xD4-0xD7 */
+	0xF2, 0xD1, 0xF2, 0xC9, 0xF2, 0xCC, 0x00, 0x00, /* 0xD8-0xDB */
+	0xF2, 0xD4, 0xC3, 0xC0, 0xF2, 0xD9, 0xF2, 0xD2, /* 0xDC-0xDF */
+	0x00, 0x00, 0xF2, 0xCA, 0xF2, 0xDA, 0xF2, 0xD3, /* 0xE0-0xE3 */
+	0xC3, 0xC3, 0xC3, 0xC4, 0xF2, 0xD7, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xF2, 0xCB, 0xC3, 0xBF, 0xC3, 0xC1, 0xF2, 0xC6, /* 0xE8-0xEB */
+	0xF2, 0xCE, 0xF2, 0xC8, 0x00, 0x00, 0xF2, 0xD8, /* 0xEC-0xEF */
+	0xF2, 0xD6, 0xF2, 0xC7, 0xF2, 0xCF, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0xF4, 0xBE, 0xC3, 0xC5, /* 0xF4-0xF7 */
+	0xF2, 0xD0, 0xC4, 0xA7, 0xC4, 0xA9, 0xC4, 0xA6, /* 0xF8-0xFB */
+	0x00, 0x00, 0xF4, 0xC3, 0xF4, 0xBB, 0xF4, 0xB9, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_86[512] = {
+	0xF4, 0xBD, 0xF4, 0xBA, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0xF4, 0xBF, 0xF4, 0xC1, 0xC4, 0xAA, 0xC4, 0xAC, /* 0x04-0x07 */
+	0x00, 0x00, 0xF4, 0xC0, 0xC4, 0xAD, 0xC4, 0xAB, /* 0x08-0x0B */
+	0xF4, 0xC2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0xC4, 0xA8, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC4, 0xF4, /* 0x14-0x17 */
+	0xF5, 0xF1, 0xF5, 0xF7, 0xC4, 0xF6, 0xF4, 0xBC, /* 0x18-0x1B */
+	0xF5, 0xF6, 0x00, 0x00, 0xF5, 0xFD, 0xF5, 0xF4, /* 0x1C-0x1F */
+	0xF5, 0xFB, 0xF5, 0xFA, 0xF4, 0xB8, 0xF5, 0xF5, /* 0x20-0x23 */
+	0xF0, 0xB6, 0xF5, 0xFE, 0xF5, 0xF3, 0xF5, 0xF8, /* 0x24-0x27 */
+	0x00, 0x00, 0xF5, 0xFC, 0xF5, 0xF2, 0x00, 0x00, /* 0x28-0x2B */
+	0xF7, 0x4A, 0xC4, 0xF5, 0xF5, 0xF9, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0xF7, 0xF4, 0xF7, 0x4B, 0xF7, 0x49, /* 0x30-0x33 */
+	0xF7, 0x47, 0xF7, 0x48, 0xF7, 0x4C, 0x00, 0x00, /* 0x34-0x37 */
+	0xC5, 0xD9, 0xF7, 0xF2, 0xF7, 0xF0, 0xF7, 0xF5, /* 0x38-0x3B */
+	0xF7, 0xF3, 0x00, 0x00, 0xF7, 0xF6, 0xC5, 0xDA, /* 0x3C-0x3F */
+	0xF7, 0xF1, 0x00, 0x00, 0x00, 0x00, 0xF8, 0xBC, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xF9, 0x45, 0xF9, 0x46, /* 0x44-0x47 */
+	0xF9, 0x47, 0x00, 0x00, 0x00, 0x00, 0xF9, 0xC7, /* 0x48-0x4B */
+	0xF9, 0xBD, 0xCA, 0x4F, 0xAA, 0xEA, 0x00, 0x00, /* 0x4C-0x4F */
+	0xAD, 0x68, 0x00, 0x00, 0xD3, 0xB8, 0xD3, 0xB7, /* 0x50-0x53 */
+	0xB0, 0x40, 0xB3, 0x42, 0xD7, 0x7C, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0xD7, 0x7B, 0x00, 0x00, 0xB5, 0xEA, /* 0x58-0x5B */
+	0xB8, 0xB8, 0x00, 0x00, 0xB8, 0xB7, 0xB8, 0xB9, /* 0x5C-0x5F */
+	0x00, 0x00, 0xE3, 0xD4, 0xE7, 0x7E, 0xEB, 0x58, /* 0x60-0x63 */
+	0xEB, 0x5A, 0xEB, 0x59, 0x00, 0x00, 0xC1, 0xAB, /* 0x64-0x67 */
+	0xEE, 0x57, 0xF0, 0xBA, 0xF9, 0xA5, 0xA6, 0xE4, /* 0x68-0x6B */
+	0x00, 0x00, 0xCD, 0xC9, 0xCD, 0xCA, 0xCD, 0xC8, /* 0x6C-0x6F */
+	0xCD, 0xC7, 0xAA, 0xEB, 0x00, 0x00, 0xD0, 0xA9, /* 0x70-0x73 */
+	0xD0, 0xA7, 0x00, 0x00, 0x00, 0x00, 0xD0, 0xA6, /* 0x74-0x77 */
+	0x00, 0x00, 0xAD, 0x69, 0xAD, 0x6B, 0xAD, 0x6A, /* 0x78-0x7B */
+	0xD0, 0xA8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0xD3, 0xC4, 0xD3, 0xC1, 0xD3, 0xBF, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0xB0, 0x41, 0xD3, 0xC2, /* 0x88-0x8B */
+	0xB0, 0x46, 0xD3, 0xBC, 0xD3, 0xCB, 0x00, 0x00, /* 0x8C-0x8F */
+	0xD3, 0xCD, 0xD3, 0xBD, 0x00, 0x00, 0xB0, 0x43, /* 0x90-0x93 */
+	0xD3, 0xCE, 0xD3, 0xC9, 0xD3, 0xBB, 0xD3, 0xC0, /* 0x94-0x97 */
+	0xD3, 0xCA, 0xD3, 0xC6, 0xD3, 0xC3, 0x00, 0x00, /* 0x98-0x9B */
+	0xB0, 0x48, 0xD3, 0xCC, 0xD3, 0xBE, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0xD3, 0xC7, 0xD3, 0xB9, 0xB0, 0x47, /* 0xA0-0xA3 */
+	0xB0, 0x44, 0xD3, 0xC5, 0x00, 0x00, 0xD3, 0xC8, /* 0xA4-0xA7 */
+	0xD3, 0xBA, 0xB0, 0x45, 0xB0, 0x42, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB3, 0x4C, /* 0xAC-0xAF */
+	0xD7, 0xA5, 0xB3, 0x4B, 0x00, 0x00, 0xD7, 0xA8, /* 0xB0-0xB3 */
+	0xD7, 0xAB, 0xB3, 0x48, 0xB3, 0x46, 0xD7, 0x7E, /* 0xB4-0xB7 */
+	0xD7, 0xA9, 0xD7, 0xA7, 0xD7, 0xA4, 0xD7, 0xAC, /* 0xB8-0xBB */
+	0xD7, 0xAD, 0xD7, 0xAF, 0xD7, 0xB0, 0xD7, 0x7D, /* 0xBC-0xBF */
+	0xB3, 0x45, 0xD7, 0xA2, 0xD7, 0xA1, 0xD7, 0xAE, /* 0xC0-0xC3 */
+	0xB3, 0x47, 0xD7, 0xA3, 0xB3, 0x49, 0xB3, 0x44, /* 0xC4-0xC7 */
+	0xD7, 0xA6, 0xB3, 0x4D, 0x00, 0x00, 0xB3, 0x4A, /* 0xC8-0xCB */
+	0xD7, 0xAA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0xB5, 0xF1, 0xDB, 0xBF, 0x00, 0x00, 0xDB, 0xB4, /* 0xD0-0xD3 */
+	0xB5, 0xEE, 0x00, 0x00, 0xDF, 0xE7, 0xDB, 0xBD, /* 0xD4-0xD7 */
+	0xDB, 0xB1, 0xB5, 0xEC, 0xDB, 0xB6, 0xB5, 0xEF, /* 0xD8-0xDB */
+	0xDB, 0xBA, 0xDB, 0xB8, 0xB5, 0xF2, 0xB5, 0xEB, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0xDB, 0xB2, 0xDB, 0xB5, /* 0xE0-0xE3 */
+	0xB5, 0xF0, 0x00, 0x00, 0xDB, 0xB3, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xDB, 0xBE, 0xDB, 0xBC, 0xDB, 0xB7, 0xDB, 0xB9, /* 0xE8-0xEB */
+	0xDB, 0xBB, 0xB5, 0xED, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0xDF, 0xE8, 0xDF, 0xEE, 0xDF, 0xE4, /* 0xF4-0xF7 */
+	0xDF, 0xEA, 0xB8, 0xBA, 0xDF, 0xE6, 0xB8, 0xC0, /* 0xF8-0xFB */
+	0x00, 0x00, 0x00, 0x00, 0xB8, 0xBF, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_87[512] = {
+	0xB8, 0xBE, 0xDF, 0xED, 0xB8, 0xC1, 0xB8, 0xC2, /* 0x00-0x03 */
+	0xDF, 0xE3, 0xDF, 0xF0, 0xB8, 0xC3, 0xB8, 0xBD, /* 0x04-0x07 */
+	0xB8, 0xBC, 0xDF, 0xEC, 0xB8, 0xC4, 0xDF, 0xE2, /* 0x08-0x0B */
+	0xDF, 0xE5, 0xDF, 0xEF, 0xDF, 0xEB, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0xE3, 0xF4, 0xE3, 0xE9, 0xB8, 0xBB, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0xBB, 0x6A, 0xE3, 0xDD, 0xE3, 0xF2, 0xE3, 0xDE, /* 0x18-0x1B */
+	0xBB, 0x65, 0x00, 0x00, 0xE3, 0xDB, 0x00, 0x00, /* 0x1C-0x1F */
+	0xE3, 0xE4, 0xE3, 0xDC, 0xBB, 0x67, 0xE3, 0xD6, /* 0x20-0x23 */
+	0xE3, 0xF1, 0xBB, 0x68, 0xE3, 0xEE, 0xE3, 0xEF, /* 0x24-0x27 */
+	0xE3, 0xD7, 0xBB, 0x6D, 0xE3, 0xE6, 0x00, 0x00, /* 0x28-0x2B */
+	0xE3, 0xE0, 0xE3, 0xE7, 0xE3, 0xDA, 0x00, 0x00, /* 0x2C-0x2F */
+	0xE3, 0xF3, 0xE3, 0xEB, 0xE3, 0xE5, 0xE3, 0xD5, /* 0x30-0x33 */
+	0xBB, 0x69, 0xE3, 0xEC, 0x00, 0x00, 0xBB, 0x6C, /* 0x34-0x37 */
+	0xE3, 0xF0, 0x00, 0x00, 0xE3, 0xEA, 0xBB, 0x66, /* 0x38-0x3B */
+	0xE3, 0xE8, 0x00, 0x00, 0xE3, 0xE2, 0xBB, 0x64, /* 0x3C-0x3F */
+	0xE3, 0xD9, 0xE3, 0xE1, 0xE3, 0xED, 0xE3, 0xDF, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xE3, 0xE3, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0xBD, 0xC1, 0xDF, 0xE9, 0xE7, 0xB2, 0xE7, 0xBB, /* 0x4C-0x4F */
+	0xE7, 0xB1, 0xE7, 0xAD, 0xE7, 0xAA, 0xBD, 0xC2, /* 0x50-0x53 */
+	0xE7, 0xA8, 0xBB, 0x6B, 0xE7, 0xA1, 0xBD, 0xC0, /* 0x54-0x57 */
+	0xE7, 0xA7, 0xBD, 0xBF, 0xE7, 0xAC, 0xE7, 0xA9, /* 0x58-0x5B */
+	0xE7, 0xB9, 0xE7, 0xB4, 0xE7, 0xAE, 0xE7, 0xB3, /* 0x5C-0x5F */
+	0xBD, 0xBB, 0xE7, 0xAB, 0xE7, 0xBE, 0xE7, 0xA2, /* 0x60-0x63 */
+	0xE7, 0xA3, 0xE7, 0xBA, 0xBD, 0xBC, 0xE7, 0xBF, /* 0x64-0x67 */
+	0xBD, 0xBE, 0xE7, 0xC0, 0xE7, 0xB0, 0xE3, 0xD8, /* 0x68-0x6B */
+	0xE7, 0xB6, 0xE7, 0xAF, 0xE7, 0xB8, 0xE7, 0xB5, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE7, 0xA6, /* 0x70-0x73 */
+	0xBD, 0xB9, 0xE7, 0xBD, 0xBD, 0xBA, 0xE7, 0xA4, /* 0x74-0x77 */
+	0xBD, 0xBD, 0xEB, 0x64, 0xE7, 0xB7, 0xE7, 0xBC, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xEB, 0x61, 0xBD, 0xB8, 0xBF, 0xC0, /* 0x80-0x83 */
+	0xEB, 0x6B, 0xEB, 0x67, 0x00, 0x00, 0xEB, 0x65, /* 0x84-0x87 */
+	0xEB, 0x60, 0xEB, 0x6F, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0xBF, 0xC4, 0x00, 0x00, 0xEB, 0x5C, /* 0x8C-0x8F */
+	0xEB, 0x68, 0xEB, 0x69, 0xEB, 0x5F, 0xEB, 0x5E, /* 0x90-0x93 */
+	0xEB, 0x6C, 0x00, 0x00, 0xEB, 0x62, 0xEB, 0x5D, /* 0x94-0x97 */
+	0xEB, 0x63, 0x00, 0x00, 0xEB, 0x6E, 0xEB, 0x5B, /* 0x98-0x9B */
+	0xEB, 0x6D, 0xEB, 0x6A, 0xBF, 0xC2, 0xBF, 0xC1, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0xBF, 0xC3, 0xEB, 0x66, /* 0xA0-0xA3 */
+	0xF0, 0xCB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0xEE, 0x59, 0xC1, 0xB1, /* 0xA8-0xAB */
+	0xEE, 0x5D, 0xEE, 0x5A, 0xEE, 0x61, 0xEE, 0x67, /* 0xAC-0xAF */
+	0xEE, 0x5C, 0x00, 0x00, 0xEE, 0x70, 0xC1, 0xAE, /* 0xB0-0xB3 */
+	0xEE, 0x6A, 0xEE, 0x5F, 0xEE, 0x6B, 0xEE, 0x66, /* 0xB4-0xB7 */
+	0xEE, 0x6D, 0xEE, 0x5E, 0xC1, 0xB3, 0xC1, 0xB2, /* 0xB8-0xBB */
+	0xEE, 0x60, 0xEE, 0x6E, 0xEE, 0x58, 0xEE, 0x6C, /* 0xBC-0xBF */
+	0xC1, 0xAC, 0x00, 0x00, 0xEE, 0x64, 0xEE, 0x63, /* 0xC0-0xC3 */
+	0xEE, 0x68, 0xEE, 0x5B, 0xC1, 0xB0, 0x00, 0x00, /* 0xC4-0xC7 */
+	0xC1, 0xB4, 0xEE, 0x62, 0xEE, 0x69, 0xC1, 0xB5, /* 0xC8-0xCB */
+	0xEE, 0x65, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0xC1, 0xAD, 0xC1, 0xAF, 0xF0, 0xC7, /* 0xD0-0xD3 */
+	0xF0, 0xC5, 0x00, 0x00, 0x00, 0x00, 0xF0, 0xCC, /* 0xD4-0xD7 */
+	0xF0, 0xC9, 0xF0, 0xCD, 0x00, 0x00, 0xF0, 0xBE, /* 0xD8-0xDB */
+	0xF0, 0xC6, 0xF0, 0xD1, 0xEE, 0x6F, 0xF0, 0xC2, /* 0xDC-0xDF */
+	0xC2, 0xCF, 0xE7, 0xA5, 0xF0, 0xBD, 0xF0, 0xCA, /* 0xE0-0xE3 */
+	0xF0, 0xC4, 0xF0, 0xC1, 0xF0, 0xBC, 0xF0, 0xBB, /* 0xE4-0xE7 */
+	0xF0, 0xD0, 0x00, 0x00, 0xF0, 0xC0, 0xF0, 0xBF, /* 0xE8-0xEB */
+	0xC2, 0xCD, 0xF0, 0xC8, 0x00, 0x00, 0xC2, 0xCC, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0xC2, 0xCE, 0xF0, 0xC3, /* 0xF0-0xF3 */
+	0xF0, 0xCF, 0x00, 0x00, 0xF2, 0xDE, 0xF2, 0xDF, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xC3, 0xC9, 0xF2, 0xDC, 0xC3, 0xC6, /* 0xF8-0xFB */
+	0xF2, 0xE4, 0x00, 0x00, 0xC3, 0xCA, 0xF2, 0xE6, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_88[512] = {
+	0xF2, 0xDB, 0xF0, 0xCE, 0xF2, 0xE8, 0xF2, 0xDD, /* 0x00-0x03 */
+	0x00, 0x00, 0xC3, 0xC7, 0xF2, 0xE3, 0x00, 0x00, /* 0x04-0x07 */
+	0xF2, 0xE5, 0xF2, 0xE0, 0xF2, 0xE7, 0xF2, 0xE2, /* 0x08-0x0B */
+	0xF2, 0xE1, 0xC3, 0xC8, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0xF4, 0xC5, 0xF4, 0xC6, 0x00, 0x00, 0xF4, 0xC8, /* 0x10-0x13 */
+	0xC4, 0xAE, 0xC4, 0xAF, 0xF4, 0xC9, 0xF4, 0xC7, /* 0x14-0x17 */
+	0x00, 0x00, 0xF4, 0xC4, 0x00, 0x00, 0xF6, 0x42, /* 0x18-0x1B */
+	0xF6, 0x45, 0xF6, 0x41, 0x00, 0x00, 0xC4, 0xFA, /* 0x1C-0x1F */
+	0xF6, 0x43, 0xC4, 0xF9, 0xC4, 0xF8, 0xC4, 0xF7, /* 0x20-0x23 */
+	0xF6, 0x44, 0xF7, 0x51, 0xF7, 0x4F, 0x00, 0x00, /* 0x24-0x27 */
+	0xF7, 0x4E, 0xF6, 0x40, 0xF7, 0x50, 0xF6, 0x46, /* 0x28-0x2B */
+	0xF7, 0x4D, 0x00, 0x00, 0xF7, 0xF9, 0xF7, 0xD7, /* 0x2C-0x2F */
+	0xF7, 0xF7, 0xC5, 0xDB, 0xF7, 0xF8, 0xF7, 0xFA, /* 0x30-0x33 */
+	0x00, 0x00, 0xF8, 0xBF, 0xC5, 0xFA, 0xF8, 0xBE, /* 0x34-0x37 */
+	0xF8, 0xBD, 0xC5, 0xFB, 0x00, 0x00, 0xC6, 0x5A, /* 0x38-0x3B */
+	0xF9, 0x6E, 0xF9, 0xA7, 0xF9, 0xA6, 0xF9, 0xA8, /* 0x3C-0x3F */
+	0xA6, 0xE5, 0xD0, 0xAA, 0x00, 0x00, 0xD3, 0xCF, /* 0x40-0x43 */
+	0xD3, 0xD0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0xDB, 0xC0, 0x00, 0x00, 0xF6, 0x47, 0xF8, 0xC0, /* 0x48-0x4B */
+	0xA6, 0xE6, 0xAD, 0x6C, 0xD0, 0xAB, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0xD7, 0xB1, 0xB3, 0x4E, /* 0x50-0x53 */
+	0x00, 0x00, 0xDB, 0xC2, 0xDB, 0xC1, 0xB5, 0xF3, /* 0x54-0x57 */
+	0x00, 0x00, 0xB8, 0xC5, 0xE7, 0xC1, 0xBD, 0xC3, /* 0x58-0x5B */
+	0x00, 0x00, 0xBD, 0xC4, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0xBF, 0xC5, 0xC5, 0xFC, 0xA6, 0xE7, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD0, 0xAC, /* 0x64-0x67 */
+	0xAA, 0xED, 0xD0, 0xAE, 0xD0, 0xAD, 0xAD, 0x6D, /* 0x68-0x6B */
+	0x00, 0x00, 0xD3, 0xD1, 0x00, 0x00, 0xD3, 0xD8, /* 0x6C-0x6F */
+	0xB0, 0x49, 0xD3, 0xD6, 0xD3, 0xD4, 0x00, 0x00, /* 0x70-0x73 */
+	0xD3, 0xDB, 0xD3, 0xD2, 0xD3, 0xD3, 0xB0, 0x4A, /* 0x74-0x77 */
+	0x00, 0x00, 0xB0, 0x4E, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0xD3, 0xDC, 0xB0, 0x4D, 0xD3, 0xDA, 0xD3, 0xD7, /* 0x7C-0x7F */
+	
+	0xD3, 0xD5, 0xB0, 0x4B, 0xB0, 0x4C, 0xD3, 0xD9, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0xB3, 0x50, 0xD7, 0xB2, 0x00, 0x00, 0xB3, 0x55, /* 0x88-0x8B */
+	0xD7, 0xC2, 0xB3, 0x54, 0xD7, 0xC4, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0xD7, 0xB8, 0xB3, 0x52, 0xD7, 0xC3, /* 0x90-0x93 */
+	0x00, 0x00, 0xD7, 0xB3, 0xB3, 0x53, 0xD7, 0xBF, /* 0x94-0x97 */
+	0xD7, 0xBB, 0xD7, 0xBD, 0xD7, 0xB7, 0xD7, 0xBE, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0xB3, 0x4F, 0xD7, 0xBA, /* 0x9C-0x9F */
+	0x00, 0x00, 0xD7, 0xB9, 0xD7, 0xB5, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xD7, 0xC0, 0x00, 0x00, 0x00, 0x00, 0xD7, 0xBC, /* 0xA4-0xA7 */
+	0xD7, 0xB4, 0x00, 0x00, 0xD7, 0xB6, 0xB3, 0x51, /* 0xA8-0xAB */
+	0xD7, 0xC1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0xB5, 0xF6, 0xDB, 0xCD, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0xDB, 0xC9, 0xDB, 0xCB, /* 0xB4-0xB7 */
+	0xDB, 0xC6, 0xDB, 0xC5, 0xDB, 0xC3, 0x00, 0x00, /* 0xB8-0xBB */
+	0xDB, 0xCA, 0xDB, 0xCC, 0xDB, 0xC8, 0x00, 0x00, /* 0xBC-0xBF */
+	0xDB, 0xC7, 0xB5, 0xF4, 0xB5, 0xF5, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xDB, 0xCF, 0xB8, 0xCD, 0xDF, 0xF2, /* 0xC8-0xCB */
+	0xDF, 0xF8, 0xDF, 0xF3, 0xDF, 0xF4, 0xF9, 0xD8, /* 0xCC-0xCF */
+	0xDF, 0xF9, 0x00, 0x00, 0xB8, 0xCF, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xB8, 0xC7, 0xB8, 0xCE, 0xDF, 0xF1, 0xDB, 0xC4, /* 0xD4-0xD7 */
+	0xB8, 0xCA, 0xB8, 0xC8, 0xDF, 0xF7, 0xDF, 0xF6, /* 0xD8-0xDB */
+	0xB8, 0xC9, 0xB8, 0xCB, 0xDF, 0xF5, 0xB8, 0xC6, /* 0xDC-0xDF */
+	0x00, 0x00, 0xB8, 0xCC, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, 0xF6, /* 0xE4-0xE7 */
+	0xBB, 0x74, 0x00, 0x00, 0x00, 0x00, 0xE4, 0x42, /* 0xE8-0xEB */
+	0xE4, 0x41, 0x00, 0x00, 0xE3, 0xFB, 0xBB, 0x76, /* 0xEC-0xEF */
+	0xE4, 0x40, 0xE3, 0xF7, 0xE3, 0xF8, 0xBB, 0x6E, /* 0xF0-0xF3 */
+	0xBB, 0x70, 0x00, 0x00, 0xE3, 0xFD, 0xE3, 0xF5, /* 0xF4-0xF7 */
+	0xBB, 0x72, 0xBB, 0x71, 0xE3, 0xF9, 0xE3, 0xFE, /* 0xF8-0xFB */
+	0xE3, 0xFC, 0xBB, 0x73, 0xE3, 0xFA, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_89[512] = {
+	0x00, 0x00, 0xDB, 0xCE, 0xBB, 0x6F, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0xE7, 0xC2, 0xE7, 0xC9, 0xBD, 0xC6, /* 0x04-0x07 */
+	0x00, 0x00, 0xE7, 0xCD, 0xBD, 0xCA, 0xE7, 0xC5, /* 0x08-0x0B */
+	0xE7, 0xC3, 0x00, 0x00, 0xE7, 0xCC, 0x00, 0x00, /* 0x0C-0x0F */
+	0xBD, 0xC5, 0xE7, 0xCB, 0xBD, 0xC7, 0xBD, 0xC8, /* 0x10-0x13 */
+	0xE7, 0xC4, 0xBD, 0xC9, 0xE7, 0xCA, 0xE7, 0xC6, /* 0x14-0x17 */
+	0xE7, 0xC7, 0xE7, 0xC8, 0xBB, 0x75, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0xEB, 0x70, 0xEB, 0x7C, /* 0x1C-0x1F */
+	0x00, 0x00, 0xBF, 0xCA, 0xEB, 0x77, 0xEB, 0x79, /* 0x20-0x23 */
+	0x00, 0x00, 0xBF, 0xC8, 0xEB, 0x71, 0xEB, 0x75, /* 0x24-0x27 */
+	0x00, 0x00, 0xEB, 0x78, 0xBF, 0xC6, 0xBF, 0xC9, /* 0x28-0x2B */
+	0xEB, 0x7B, 0xEB, 0x73, 0xEB, 0x74, 0xEB, 0x7A, /* 0x2C-0x2F */
+	0xEB, 0x72, 0xEB, 0x76, 0xBF, 0xC7, 0xEE, 0x72, /* 0x30-0x33 */
+	0x00, 0x00, 0xEE, 0x71, 0xC1, 0xB7, 0xEE, 0x77, /* 0x34-0x37 */
+	0xC1, 0xB9, 0x00, 0x00, 0x00, 0x00, 0xC1, 0xB6, /* 0x38-0x3B */
+	0xEE, 0x73, 0xC1, 0xBA, 0xEE, 0x74, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0xEE, 0x75, 0xEE, 0x78, 0x00, 0x00, /* 0x40-0x43 */
+	0xC1, 0xB8, 0x00, 0x00, 0xF0, 0xD6, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0xF0, 0xD9, 0x00, 0x00, 0xF0, 0xD3, /* 0x48-0x4B */
+	0xF0, 0xD5, 0x00, 0x00, 0x00, 0x00, 0xF0, 0xD4, /* 0x4C-0x4F */
+	0xF0, 0xD7, 0xF0, 0xD8, 0xEE, 0x76, 0xF0, 0xD2, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0xC3, 0xCD, 0xF2, 0xEC, /* 0x54-0x57 */
+	0xF2, 0xEF, 0xF2, 0xF1, 0xF2, 0xEA, 0xF2, 0xEB, /* 0x58-0x5B */
+	0xF2, 0xEE, 0xF2, 0xF0, 0xC3, 0xCE, 0xC3, 0xCC, /* 0x5C-0x5F */
+	0xC3, 0xCB, 0xF2, 0xED, 0xF2, 0xE9, 0xF4, 0xCA, /* 0x60-0x63 */
+	0xC4, 0xB0, 0x00, 0x00, 0xF4, 0xCB, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0xF6, 0x49, 0xC4, 0xFB, 0xF6, 0x4B, /* 0x68-0x6B */
+	0xC4, 0xFC, 0xF6, 0x48, 0xF6, 0x4A, 0xC5, 0xA8, /* 0x6C-0x6F */
+	0x00, 0x00, 0xF7, 0x52, 0xC5, 0xA7, 0xF7, 0xFD, /* 0x70-0x73 */
+	0xF7, 0xFC, 0x00, 0x00, 0xF7, 0xFB, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0xF9, 0x48, 0xF9, 0x49, 0xF9, 0x4B, /* 0x78-0x7B */
+	0xF9, 0x4A, 0x00, 0x00, 0xCA, 0x50, 0xA6, 0xE8, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xAD, 0x6E, 0xD7, 0xC5, 0xB5, 0xF7, /* 0x80-0x83 */
+	0x00, 0x00, 0xDF, 0xFA, 0xC2, 0xD0, 0x00, 0x00, /* 0x84-0x87 */
+	0xF2, 0xF2, 0x00, 0x00, 0x00, 0x00, 0xA8, 0xA3, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB3, 0x57, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB3, 0x56, /* 0x90-0x93 */
+	0x00, 0x00, 0xDB, 0xD0, 0xB5, 0xF8, 0xDB, 0xD2, /* 0x94-0x97 */
+	0xDB, 0xD1, 0x00, 0x00, 0x00, 0x00, 0xDF, 0xFB, /* 0x98-0x9B */
+	0xB8, 0xD0, 0xE4, 0x43, 0xE4, 0x46, 0xE4, 0x45, /* 0x9C-0x9F */
+	0x00, 0x00, 0xE4, 0x44, 0xE7, 0xCE, 0xE7, 0xD0, /* 0xA0-0xA3 */
+	0xE7, 0xCF, 0x00, 0x00, 0xBF, 0xCC, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0xBF, 0xCB, 0x00, 0x00, /* 0xA8-0xAB */
+	0xC1, 0xBB, 0xEE, 0x79, 0xEE, 0x7B, 0xEE, 0x7A, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0xC2, 0xD1, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0xF2, 0xF4, 0xF2, 0xF3, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xF4, 0xCC, 0xC4, 0xB1, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0xC4, 0xFD, 0xF7, 0x54, 0xF7, 0x53, /* 0xBC-0xBF */
+	0xC6, 0x5B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0xA8, 0xA4, 0xD0, 0xAF, /* 0xD0-0xD3 */
+	0xAD, 0x6F, 0xD7, 0xC8, 0xD7, 0xC6, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xD7, 0xC7, 0xDB, 0xD4, 0xDB, 0xD5, /* 0xD8-0xDB */
+	0xE0, 0x43, 0xDB, 0xD3, 0x00, 0x00, 0xDF, 0xFC, /* 0xDC-0xDF */
+	0xE0, 0x41, 0xE0, 0x40, 0xE0, 0x42, 0xB8, 0xD1, /* 0xE0-0xE3 */
+	0xDF, 0xFE, 0xDF, 0xFD, 0xE0, 0x44, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xE4, 0x49, 0xE4, 0x47, 0x00, 0x00, 0xE4, 0x48, /* 0xE8-0xEB */
+	0xE7, 0xD3, 0xE7, 0xD1, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0xE7, 0xD2, 0xEB, 0x7D, 0xEE, 0x7C, 0xEE, 0x7D, /* 0xF0-0xF3 */
+	0xC2, 0xD2, 0x00, 0x00, 0xF2, 0xF5, 0xF4, 0xCD, /* 0xF4-0xF7 */
+	0xC4, 0xB2, 0x00, 0x00, 0xF6, 0x4C, 0xF7, 0x55, /* 0xF8-0xFB */
+	0xC5, 0xA9, 0x00, 0x00, 0xF7, 0xFE, 0xF9, 0x4C, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_8A[512] = {
+	0xA8, 0xA5, 0x00, 0x00, 0xAD, 0x71, 0xAD, 0x72, /* 0x00-0x03 */
+	0xD0, 0xB0, 0x00, 0x00, 0x00, 0x00, 0xD0, 0xB1, /* 0x04-0x07 */
+	0xAD, 0x70, 0x00, 0x00, 0xB0, 0x54, 0x00, 0x00, /* 0x08-0x0B */
+	0xB0, 0x52, 0x00, 0x00, 0xB0, 0x51, 0xB0, 0x58, /* 0x0C-0x0F */
+	0xB0, 0x50, 0xB0, 0x59, 0xD3, 0xDD, 0xB0, 0x56, /* 0x10-0x13 */
+	0x00, 0x00, 0xB0, 0x53, 0xB0, 0x57, 0xB0, 0x55, /* 0x14-0x17 */
+	0xB0, 0x4F, 0x00, 0x00, 0x00, 0x00, 0xB3, 0x5F, /* 0x18-0x1B */
+	0x00, 0x00, 0xB3, 0x59, 0xD7, 0xCC, 0xB3, 0x5E, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0xB3, 0x60, 0xB3, 0x5A, /* 0x20-0x23 */
+	0x00, 0x00, 0xB3, 0x5B, 0x00, 0x00, 0xD7, 0xCA, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xB3, 0x58, 0x00, 0x00, /* 0x28-0x2B */
+	0xD7, 0xCB, 0xB3, 0x5D, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xD7, 0xC9, 0xB3, 0x5C, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0xB6, 0x44, 0x00, 0x00, 0xB6, 0x46, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0xDB, 0xD8, 0xB6, 0x45, 0xB5, 0xF9, /* 0x38-0x3B */
+	0xB5, 0xFD, 0x00, 0x00, 0xB8, 0xE4, 0xE0, 0x49, /* 0x3C-0x3F */
+	0xDB, 0xDA, 0xB5, 0xFE, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0xDB, 0xDD, 0xDB, 0xDE, 0xB6, 0x43, 0x00, 0x00, /* 0x44-0x47 */
+	0xDB, 0xE0, 0x00, 0x00, 0xDB, 0xE2, 0x00, 0x00, /* 0x48-0x4B */
+	0xDB, 0xE3, 0xDB, 0xD7, 0xDB, 0xD6, 0xDB, 0xE4, /* 0x4C-0x4F */
+	0xB6, 0x42, 0xDB, 0xE1, 0xDB, 0xDF, 0x00, 0x00, /* 0x50-0x53 */
+	0xB6, 0x40, 0xB5, 0xFB, 0xB6, 0x47, 0xDB, 0xDB, /* 0x54-0x57 */
+	0xDB, 0xDC, 0xDB, 0xD9, 0x00, 0x00, 0xB6, 0x41, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0xB5, 0xFC, 0x00, 0x00, /* 0x5C-0x5F */
+	0xB5, 0xFA, 0xE0, 0x48, 0xB8, 0xDF, 0xB8, 0xDA, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0xB8, 0xD5, 0x00, 0x00, /* 0x64-0x67 */
+	0xB8, 0xE5, 0xB8, 0xD6, 0x00, 0x00, 0xB8, 0xD2, /* 0x68-0x6B */
+	0xB8, 0xE1, 0xB8, 0xDE, 0xB8, 0xE0, 0x00, 0x00, /* 0x6C-0x6F */
+	0xB8, 0xD7, 0xB8, 0xDC, 0xB8, 0xD3, 0xB8, 0xD4, /* 0x70-0x73 */
+	0xE0, 0x50, 0xE0, 0x4D, 0xE0, 0x45, 0xE0, 0x4A, /* 0x74-0x77 */
+	0x00, 0x00, 0xB8, 0xE2, 0xE0, 0x51, 0xB8, 0xE3, /* 0x78-0x7B */
+	0xB8, 0xD9, 0x00, 0x00, 0x00, 0x00, 0xE0, 0x47, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xE0, 0x4F, 0xE0, 0x4B, 0xE0, 0x4E, /* 0x80-0x83 */
+	0xE0, 0x4C, 0xB8, 0xDD, 0xE0, 0x46, 0xB8, 0xD8, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0x4C, /* 0x88-0x8B */
+	0xBB, 0x78, 0xBB, 0x7B, 0x00, 0x00, 0xE4, 0x4E, /* 0x8C-0x8F */
+	0x00, 0x00, 0xBB, 0xA5, 0xE4, 0x4D, 0xBB, 0x7D, /* 0x90-0x93 */
+	0x00, 0x00, 0xBD, 0xCF, 0xE4, 0x4F, 0x00, 0x00, /* 0x94-0x97 */
+	0xBB, 0xA4, 0xE4, 0x4B, 0xBB, 0xA6, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0xBB, 0x79, 0x00, 0x00, /* 0x9C-0x9F */
+	0xB8, 0xDB, 0xBB, 0x7C, 0x00, 0x00, 0xBB, 0x7A, /* 0xA0-0xA3 */
+	0xBB, 0x7E, 0xBB, 0xA2, 0xBB, 0x77, 0xBB, 0xA7, /* 0xA4-0xA7 */
+	0xBB, 0xA3, 0x00, 0x00, 0xBB, 0xA1, 0xE4, 0x4A, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0xBD, 0xD6, 0x00, 0x00, 0xBD, 0xD2, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0xBD, 0xD9, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xE7, 0xD6, 0xBD, 0xDA, 0xE7, 0xE2, 0xE7, 0xDB, /* 0xB8-0xBB */
+	0xBD, 0xCB, 0xE7, 0xE3, 0xE7, 0xDD, 0xBD, 0xD5, /* 0xBC-0xBF */
+	0xE7, 0xDE, 0x00, 0x00, 0xBD, 0xD4, 0xE7, 0xE1, /* 0xC0-0xC3 */
+	0xBD, 0xCE, 0xE7, 0xDF, 0xE7, 0xD5, 0xBD, 0xCD, /* 0xC4-0xC7 */
+	0xEB, 0xAA, 0xBD, 0xD3, 0x00, 0x00, 0xBD, 0xD0, /* 0xC8-0xCB */
+	0x00, 0x00, 0xBD, 0xD8, 0x00, 0x00, 0xE7, 0xD4, /* 0xCC-0xCF */
+	0x00, 0x00, 0xE7, 0xD8, 0xBD, 0xCC, 0xE7, 0xD7, /* 0xD0-0xD3 */
+	0xE7, 0xD9, 0xE7, 0xDA, 0xBD, 0xD7, 0xE7, 0xDC, /* 0xD4-0xD7 */
+	0xE7, 0xE0, 0xE7, 0xE4, 0x00, 0x00, 0xBD, 0xDB, /* 0xD8-0xDB */
+	0xBF, 0xD2, 0xEB, 0xA5, 0xEB, 0xAB, 0xEB, 0xA8, /* 0xDC-0xDF */
+	0xEB, 0x7E, 0xEB, 0xAC, 0xEB, 0xA1, 0x00, 0x00, /* 0xE0-0xE3 */
+	0xEB, 0xA7, 0x00, 0x00, 0xBF, 0xCD, 0xBF, 0xD3, /* 0xE4-0xE7 */
+	0xEB, 0xAD, 0x00, 0x00, 0x00, 0x00, 0xBF, 0xCF, /* 0xE8-0xEB */
+	0x00, 0x00, 0xBF, 0xD9, 0xBF, 0xD4, 0xEB, 0xAF, /* 0xEC-0xEF */
+	0xEB, 0xA9, 0xBF, 0xD0, 0xEB, 0xA2, 0xBF, 0xDA, /* 0xF0-0xF3 */
+	0xEB, 0xA3, 0xEB, 0xA4, 0xBF, 0xDB, 0xBF, 0xD8, /* 0xF4-0xF7 */
+	0xBD, 0xD1, 0x00, 0x00, 0xBF, 0xCE, 0xEB, 0xB0, /* 0xF8-0xFB */
+	0xBF, 0xDC, 0x00, 0x00, 0xBF, 0xD5, 0xEB, 0xAE, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_8B[512] = {
+	0xBF, 0xD1, 0xBF, 0xD6, 0xBF, 0xD7, 0x00, 0x00, /* 0x00-0x03 */
+	0xC1, 0xC3, 0xEE, 0xA4, 0xEE, 0xAD, 0xEE, 0xAA, /* 0x04-0x07 */
+	0xEE, 0xAC, 0x00, 0x00, 0xC1, 0xC0, 0xEE, 0xA5, /* 0x08-0x0B */
+	0x00, 0x00, 0xEE, 0xAB, 0xC1, 0xBC, 0xEE, 0xA7, /* 0x0C-0x0F */
+	0xC1, 0xC4, 0xEE, 0xA3, 0xEE, 0xA8, 0xEE, 0xAF, /* 0x10-0x13 */
+	0xEB, 0xA6, 0xEE, 0xA9, 0xEE, 0xA2, 0xC1, 0xBD, /* 0x14-0x17 */
+	0xEE, 0xA1, 0xC1, 0xBE, 0xEE, 0xB0, 0xC1, 0xBF, /* 0x18-0x1B */
+	0xEE, 0xAE, 0xC1, 0xC2, 0xEE, 0x7E, 0x00, 0x00, /* 0x1C-0x1F */
+	0xC1, 0xC1, 0x00, 0x00, 0xEE, 0xA6, 0xF0, 0xDC, /* 0x20-0x23 */
+	0xF0, 0xEA, 0xF0, 0xE5, 0xF0, 0xE7, 0xF0, 0xDB, /* 0x24-0x27 */
+	0xC2, 0xD3, 0x00, 0x00, 0xF0, 0xDA, 0xC2, 0xD6, /* 0x28-0x2B */
+	0xC2, 0xD5, 0x00, 0x00, 0xF0, 0xE9, 0xF0, 0xE1, /* 0x2C-0x2F */
+	0xF0, 0xDE, 0xF0, 0xE4, 0x00, 0x00, 0xF0, 0xDD, /* 0x30-0x33 */
+	0x00, 0x00, 0xF0, 0xDF, 0xF0, 0xE8, 0xF0, 0xE6, /* 0x34-0x37 */
+	0x00, 0x00, 0xC2, 0xD4, 0xF0, 0xED, 0xF0, 0xEB, /* 0x38-0x3B */
+	0xF0, 0xE2, 0xF0, 0xEC, 0xF0, 0xE3, 0x00, 0x00, /* 0x3C-0x3F */
+	0xF2, 0xF9, 0xC3, 0xCF, 0xF3, 0x41, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0xF6, 0x4F, 0xC3, 0xD6, 0xF0, 0xE0, /* 0x44-0x47 */
+	0xF2, 0xF7, 0xC3, 0xD2, 0xF2, 0xF8, 0xF2, 0xFD, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0xC3, 0xD4, 0xC3, 0xD5, /* 0x4C-0x4F */
+	0xF2, 0xF6, 0xF3, 0x40, 0xF3, 0x42, 0xF2, 0xFA, /* 0x50-0x53 */
+	0xF2, 0xFC, 0xF2, 0xFE, 0xF2, 0xFB, 0xF3, 0x43, /* 0x54-0x57 */
+	0xC3, 0xD1, 0xC3, 0xD7, 0xC3, 0xD3, 0x00, 0x00, /* 0x58-0x5B */
+	0xC3, 0xD0, 0xF4, 0xD0, 0x00, 0x00, 0xC4, 0xB7, /* 0x5C-0x5F */
+	0xF4, 0xCE, 0x00, 0x00, 0x00, 0x00, 0xF4, 0xD2, /* 0x60-0x63 */
+	0x00, 0x00, 0xF4, 0xD3, 0xC4, 0xB5, 0xF4, 0xD4, /* 0x64-0x67 */
+	0xF4, 0xD1, 0x00, 0x00, 0xF4, 0xCF, 0xC4, 0xB8, /* 0x68-0x6B */
+	0xC4, 0xB4, 0xF4, 0xD5, 0x00, 0x00, 0xC4, 0xB6, /* 0x6C-0x6F */
+	0xC4, 0xB3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0xC4, 0xFE, 0x00, 0x00, 0x00, 0x00, 0xC5, 0x40, /* 0x74-0x77 */
+	0xF6, 0x4E, 0xF6, 0x4D, 0xF6, 0x50, 0xF6, 0x51, /* 0x78-0x7B */
+	0x00, 0x00, 0xC5, 0x41, 0xF7, 0x56, 0xF7, 0x5B, /* 0x7C-0x7F */
+	
+	0xC5, 0xAA, 0x00, 0x00, 0xF7, 0x58, 0x00, 0x00, /* 0x80-0x83 */
+	0xF7, 0x57, 0xF7, 0x5A, 0xF7, 0x59, 0x00, 0x00, /* 0x84-0x87 */
+	0xF8, 0x43, 0x00, 0x00, 0xC5, 0xDC, 0xF8, 0x42, /* 0x88-0x8B */
+	0xF8, 0x40, 0x00, 0x00, 0xF8, 0x41, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0xC5, 0xFE, 0xC5, 0xFD, /* 0x90-0x93 */
+	0xF8, 0xC1, 0xF8, 0xC2, 0xC6, 0x40, 0x00, 0x00, /* 0x94-0x97 */
+	0xF9, 0x4D, 0xF9, 0x4E, 0xC6, 0x67, 0x00, 0x00, /* 0x98-0x9B */
+	0xC6, 0x6D, 0x00, 0x00, 0xF9, 0xA9, 0xF9, 0xC8, /* 0x9C-0x9F */
+};
+
+static unsigned char u2c_8C[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA8, 0xA6, /* 0x34-0x37 */
+	0x00, 0x00, 0xD7, 0xCD, 0x00, 0x00, 0xD7, 0xCE, /* 0x38-0x3B */
+	0xE0, 0x52, 0xE4, 0x50, 0xE7, 0xE5, 0xC1, 0xC6, /* 0x3C-0x3F */
+	0x00, 0x00, 0xC1, 0xC5, 0xF0, 0xEE, 0xF3, 0x44, /* 0x40-0x43 */
+	0x00, 0x00, 0xF8, 0x44, 0xA8, 0xA7, 0xD3, 0xDE, /* 0x44-0x47 */
+	0xB0, 0x5A, 0xB3, 0x61, 0xE0, 0x54, 0xE0, 0x53, /* 0x48-0x4B */
+	0xBD, 0xDC, 0xE7, 0xE6, 0xBD, 0xDD, 0xEE, 0xB1, /* 0x4C-0x4F */
+	0xC2, 0xD7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0xC6, 0x76, 0xA8, 0xA8, 0xCD, 0xCB, 0xD3, 0xDF, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0xB3, 0x62, 0x00, 0x00, /* 0x58-0x5B */
+	0xD7, 0xCF, 0xD7, 0xD0, 0x00, 0x00, 0xDB, 0xE5, /* 0x5C-0x5F */
+	0x00, 0x00, 0xB6, 0x48, 0xB8, 0xE6, 0x00, 0x00, /* 0x60-0x63 */
+	0xE0, 0x56, 0xE0, 0x55, 0xE0, 0x57, 0x00, 0x00, /* 0x64-0x67 */
+	0xE4, 0x51, 0xE4, 0x52, 0xBB, 0xA8, 0xBF, 0xDD, /* 0x68-0x6B */
+	0xBD, 0xDE, 0xBF, 0xDE, 0x00, 0x00, 0xEE, 0xB5, /* 0x6C-0x6F */
+	0xEE, 0xB2, 0xEE, 0xB4, 0xEE, 0xB3, 0xC1, 0xC7, /* 0x70-0x73 */
+	0x00, 0x00, 0xF0, 0xEF, 0xF3, 0x46, 0xF3, 0x45, /* 0x74-0x77 */
+	0xCB, 0xA4, 0xB0, 0x5C, 0xB0, 0x5B, 0xD3, 0xE0, /* 0x78-0x7B */
+	0x00, 0x00, 0xD7, 0xD1, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xDB, 0xE7, 0xDB, 0xE6, 0xB6, 0x49, 0x00, 0x00, /* 0x80-0x83 */
+	0xE0, 0x59, 0xE0, 0x5A, 0xE0, 0x58, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0xB8, 0xE8, 0xB8, 0xE7, 0x00, 0x00, /* 0x88-0x8B */
+	0xBB, 0xAA, 0xBB, 0xA9, 0x00, 0x00, 0xE7, 0xE7, /* 0x8C-0x8F */
+	0xEB, 0xB3, 0xEB, 0xB1, 0xEB, 0xB2, 0xBF, 0xDF, /* 0x90-0x93 */
+	0xEE, 0xB7, 0xEE, 0xB6, 0x00, 0x00, 0xF0, 0xF2, /* 0x94-0x97 */
+	0xF0, 0xF1, 0xF0, 0xF0, 0xF3, 0x47, 0x00, 0x00, /* 0x98-0x9B */
+	0xF9, 0xAA, 0xA8, 0xA9, 0xAD, 0x73, 0x00, 0x00, /* 0x9C-0x9F */
+	0xAD, 0x74, 0xB0, 0x5D, 0xB0, 0x5E, 0xD3, 0xE2, /* 0xA0-0xA3 */
+	0xD3, 0xE1, 0xD7, 0xD2, 0x00, 0x00, 0xB3, 0x68, /* 0xA4-0xA7 */
+	0xB3, 0x66, 0xB3, 0x63, 0xB3, 0x67, 0xB3, 0x65, /* 0xA8-0xAB */
+	0xB3, 0x64, 0x00, 0x00, 0x00, 0x00, 0xB6, 0x4A, /* 0xAC-0xAF */
+	0xDB, 0xEA, 0x00, 0x00, 0xB8, 0xED, 0xB6, 0x4C, /* 0xB0-0xB3 */
+	0xB6, 0x51, 0xDB, 0xEC, 0xB6, 0x53, 0xB6, 0x52, /* 0xB4-0xB7 */
+	0xB6, 0x55, 0xDB, 0xEB, 0xDB, 0xE8, 0xB6, 0x4F, /* 0xB8-0xBB */
+	0xB6, 0x4B, 0xB6, 0x4D, 0xDB, 0xE9, 0xB6, 0x54, /* 0xBC-0xBF */
+	0xB6, 0x50, 0xB6, 0x4E, 0xB8, 0xEF, 0xB8, 0xEE, /* 0xC0-0xC3 */
+	0xB8, 0xEC, 0xB8, 0xF0, 0x00, 0x00, 0xB8, 0xEA, /* 0xC4-0xC7 */
+	0xB8, 0xEB, 0x00, 0x00, 0xB8, 0xE9, 0x00, 0x00, /* 0xC8-0xCB */
+	0xE0, 0x5B, 0x00, 0x00, 0x00, 0x00, 0xE4, 0x54, /* 0xCC-0xCF */
+	0x00, 0x00, 0xBB, 0xAC, 0xBB, 0xAD, 0xBB, 0xAB, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xE4, 0x53, 0x00, 0x00, 0xE4, 0x55, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xE7, 0xEA, 0xE7, 0xEC, 0x00, 0x00, /* 0xD8-0xDB */
+	0xBD, 0xE7, 0xE7, 0xED, 0xBD, 0xE0, 0xE7, 0xE9, /* 0xDC-0xDF */
+	0xBD, 0xDF, 0xBD, 0xE9, 0xBD, 0xE5, 0xBD, 0xE6, /* 0xE0-0xE3 */
+	0xBD, 0xE2, 0xE7, 0xE8, 0xBD, 0xE1, 0xE7, 0xEE, /* 0xE4-0xE7 */
+	0xE7, 0xEB, 0x00, 0x00, 0xBD, 0xE8, 0x00, 0x00, /* 0xE8-0xEB */
+	0xBD, 0xE3, 0xBD, 0xE4, 0xEB, 0xB5, 0x00, 0x00, /* 0xEC-0xEF */
+	0xEB, 0xB7, 0xEB, 0xB6, 0x00, 0x00, 0xEB, 0xB8, /* 0xF0-0xF3 */
+	0xBF, 0xE0, 0xEB, 0xB4, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xC1, 0xCB, 0xEE, 0xB8, 0xC1, 0xC8, 0xC1, 0xCC, /* 0xF8-0xFB */
+	0xC1, 0xCA, 0xC1, 0xC9, 0xF0, 0xF3, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_8D[512] = {
+	0xF0, 0xF6, 0x00, 0x00, 0xF0, 0xF5, 0x00, 0x00, /* 0x00-0x03 */
+	0xF0, 0xF4, 0xC2, 0xD8, 0xF3, 0x48, 0xF3, 0x49, /* 0x04-0x07 */
+	0xC3, 0xD8, 0xF3, 0x4A, 0xC3, 0xD9, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0xC4, 0xBA, 0x00, 0x00, 0xC4, 0xB9, /* 0x0C-0x0F */
+	0xF6, 0x52, 0x00, 0x00, 0x00, 0x00, 0xC5, 0x42, /* 0x10-0x13 */
+	0xF6, 0x53, 0xF7, 0x5C, 0xC5, 0xAB, 0xC5, 0xAC, /* 0x14-0x17 */
+	0x00, 0x00, 0xF8, 0x45, 0x00, 0x00, 0xC6, 0x42, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0xA8, 0xAA, 0x00, 0x00, 0xB3, 0x6A, 0xB3, 0x69, /* 0x64-0x67 */
+	0xE0, 0x5C, 0xE0, 0x5D, 0x00, 0x00, 0xBB, 0xAE, /* 0x68-0x6B */
+	0xEB, 0xB9, 0xBD, 0xEA, 0xEB, 0xBA, 0xEE, 0xB9, /* 0x6C-0x6F */
+	0xA8, 0xAB, 0x00, 0x00, 0xD0, 0xB2, 0xAD, 0x76, /* 0x70-0x73 */
+	0xAD, 0x75, 0x00, 0x00, 0xD3, 0xE3, 0xB0, 0x5F, /* 0x74-0x77 */
+	0xD3, 0xE4, 0xD7, 0xD5, 0x00, 0x00, 0xD7, 0xD4, /* 0x78-0x7B */
+	0x00, 0x00, 0xD7, 0xD3, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xDB, 0xEE, 0xB6, 0x58, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0xDB, 0xED, 0xB6, 0x57, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0xDB, 0xEF, 0xB6, 0x56, 0x00, 0x00, /* 0x88-0x8B */
+	0xE0, 0x5F, 0xE0, 0x62, 0xE0, 0x60, 0xE0, 0x61, /* 0x8C-0x8F */
+	0xE0, 0x65, 0xE0, 0x5E, 0xE0, 0x66, 0xE0, 0x63, /* 0x90-0x93 */
+	0xE0, 0x64, 0xBB, 0xB0, 0xE4, 0x56, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0xBB, 0xAF, 0x00, 0x00, 0xE7, 0xF2, /* 0x98-0x9B */
+	0xE7, 0xF0, 0x00, 0x00, 0x00, 0x00, 0xBD, 0xEB, /* 0x9C-0x9F */
+	0xE7, 0xEF, 0xE7, 0xF1, 0x00, 0x00, 0xBD, 0xEC, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xEB, 0xBB, 0x00, 0x00, 0xEB, 0xBC, /* 0xA4-0xA7 */
+	0xC1, 0xCD, 0x00, 0x00, 0xF3, 0x4C, 0xF3, 0x4E, /* 0xA8-0xAB */
+	0xF3, 0x4B, 0xF3, 0x4D, 0xF4, 0xD6, 0xF6, 0x54, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0xF9, 0x6F, 0xA8, 0xAC, /* 0xB0-0xB3 */
+	0xAD, 0x77, 0xD3, 0xE5, 0xD3, 0xE7, 0xD3, 0xE6, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xD7, 0xD8, 0xB3, 0x6C, 0x00, 0x00, /* 0xB8-0xBB */
+	0xD7, 0xD6, 0x00, 0x00, 0xB3, 0x6B, 0xD7, 0xD9, /* 0xBC-0xBF */
+	0x00, 0x00, 0xD7, 0xDA, 0xD7, 0xD7, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xDB, 0xFB, 0xB6, 0x60, 0xDB, 0xF3, /* 0xC4-0xC7 */
+	0xDB, 0xF9, 0x00, 0x00, 0x00, 0x00, 0xB6, 0x5B, /* 0xC8-0xCB */
+	0xB6, 0x5E, 0xDB, 0xF2, 0xB6, 0x59, 0xDB, 0xF6, /* 0xCC-0xCF */
+	0xE0, 0x6C, 0xB6, 0x5D, 0x00, 0x00, 0xDB, 0xF1, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xDB, 0xF7, 0xDB, 0xF4, 0xDB, 0xFA, /* 0xD4-0xD7 */
+	0xDB, 0xF0, 0xDB, 0xF8, 0xB6, 0x5C, 0xB6, 0x5F, /* 0xD8-0xDB */
+	0xDB, 0xF5, 0xB6, 0x5A, 0x00, 0x00, 0xB8, 0xF2, /* 0xDC-0xDF */
+	0xE0, 0x68, 0xB8, 0xF1, 0xE0, 0x6F, 0xE0, 0x6E, /* 0xE0-0xE3 */
+	0xB8, 0xF8, 0x00, 0x00, 0xB8, 0xF9, 0xE0, 0x70, /* 0xE4-0xE7 */
+	0xB8, 0xF3, 0xE0, 0x6D, 0xB8, 0xF7, 0xE0, 0x72, /* 0xE8-0xEB */
+	0xE0, 0x69, 0x00, 0x00, 0xE0, 0x6B, 0xB8, 0xF4, /* 0xEC-0xEF */
+	0xE0, 0x67, 0xE0, 0x6A, 0xE0, 0x71, 0xB8, 0xF5, /* 0xF0-0xF3 */
+	0xE0, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0x00, 0x00, 0xB8, 0xF6, 0x00, 0x00, /* 0xF8-0xFB */
+	0xBB, 0xB1, 0xE4, 0x5B, 0xE4, 0x61, 0xE4, 0x59, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_8E[512] = {
+	0xE4, 0x62, 0x00, 0x00, 0xE4, 0x58, 0xE4, 0x5D, /* 0x00-0x03 */
+	0xE4, 0x63, 0xE4, 0x60, 0xE4, 0x5F, 0xE4, 0x5E, /* 0x04-0x07 */
+	0x00, 0x00, 0xE4, 0x57, 0xE4, 0x5C, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0xE4, 0x5A, 0x00, 0x00, 0xBD, 0xF1, /* 0x0C-0x0F */
+	0xBD, 0xEE, 0xE7, 0xFB, 0xE8, 0x41, 0xE8, 0x43, /* 0x10-0x13 */
+	0xE8, 0x40, 0xE7, 0xF8, 0xE7, 0xFA, 0xE8, 0x45, /* 0x14-0x17 */
+	0xE8, 0x42, 0xE7, 0xFC, 0xE8, 0x46, 0xE7, 0xF9, /* 0x18-0x1B */
+	0xE8, 0x44, 0xBD, 0xEF, 0xBD, 0xF5, 0xBD, 0xF3, /* 0x1C-0x1F */
+	0xE7, 0xF3, 0xBD, 0xF4, 0xBD, 0xF0, 0xE7, 0xF4, /* 0x20-0x23 */
+	0xE7, 0xF6, 0xE7, 0xF5, 0xE7, 0xFD, 0xE7, 0xFE, /* 0x24-0x27 */
+	0x00, 0x00, 0xBD, 0xF2, 0x00, 0x00, 0xBD, 0xED, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0xE7, 0xF7, 0x00, 0x00, /* 0x2C-0x2F */
+	0xEB, 0xC6, 0xBF, 0xE2, 0x00, 0x00, 0xEB, 0xBD, /* 0x30-0x33 */
+	0xBF, 0xE3, 0xBF, 0xE6, 0xEB, 0xC2, 0x00, 0x00, /* 0x34-0x37 */
+	0xEB, 0xBF, 0xBF, 0xE5, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0xEB, 0xC3, 0xEB, 0xC4, 0xEB, 0xBE, 0xEB, 0xC7, /* 0x3C-0x3F */
+	0xEB, 0xC0, 0xEB, 0xC5, 0xBF, 0xE4, 0x00, 0x00, /* 0x40-0x43 */
+	0xBF, 0xE1, 0xEB, 0xC1, 0x00, 0x00, 0xEE, 0xBF, /* 0x44-0x47 */
+	0xC1, 0xD0, 0xC1, 0xCE, 0xC1, 0xD1, 0xC1, 0xCF, /* 0x48-0x4B */
+	0xEE, 0xBE, 0xEE, 0xBB, 0xEE, 0xBA, 0x00, 0x00, /* 0x4C-0x4F */
+	0xEE, 0xBD, 0x00, 0x00, 0x00, 0x00, 0xEE, 0xBC, /* 0x50-0x53 */
+	0xF1, 0x45, 0xC2, 0xDE, 0xF0, 0xFB, 0xF0, 0xFA, /* 0x54-0x57 */
+	0x00, 0x00, 0xC2, 0xD9, 0xF1, 0x41, 0xF1, 0x40, /* 0x58-0x5B */
+	0xF0, 0xF7, 0xF1, 0x43, 0xF0, 0xFC, 0xC2, 0xDD, /* 0x5C-0x5F */
+	0xF0, 0xF9, 0xF1, 0x42, 0xF0, 0xF8, 0xC2, 0xDA, /* 0x60-0x63 */
+	0xC2, 0xDC, 0xF0, 0xFD, 0xC2, 0xDB, 0xF0, 0xFE, /* 0x64-0x67 */
+	0x00, 0x00, 0xF1, 0x44, 0xF3, 0x52, 0x00, 0x00, /* 0x68-0x6B */
+	0xC3, 0xDE, 0xF3, 0x4F, 0x00, 0x00, 0xF3, 0x53, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0xC3, 0xDB, 0xF3, 0x51, /* 0x70-0x73 */
+	0xC3, 0xE0, 0x00, 0x00, 0xC3, 0xDD, 0x00, 0x00, /* 0x74-0x77 */
+	0xF3, 0x50, 0x00, 0x00, 0xC3, 0xDF, 0xF3, 0x54, /* 0x78-0x7B */
+	0xC3, 0xDA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0xC4, 0xBC, 0xC4, 0xBE, 0x00, 0x00, /* 0x80-0x83 */
+	0xF4, 0xD9, 0xC4, 0xBD, 0xF4, 0xD7, 0xC3, 0xDC, /* 0x84-0x87 */
+	0xF4, 0xD8, 0xC4, 0xBB, 0xC5, 0x43, 0xC5, 0x45, /* 0x88-0x8B */
+	0xF6, 0x56, 0xC5, 0x44, 0xF6, 0x55, 0x00, 0x00, /* 0x8C-0x8F */
+	0xF7, 0x61, 0xC5, 0xAD, 0xF7, 0x60, 0xC5, 0xAE, /* 0x90-0x93 */
+	0xF7, 0x5E, 0xF7, 0x5D, 0xF7, 0x62, 0xF7, 0x63, /* 0x94-0x97 */
+	0xF8, 0x46, 0x00, 0x00, 0xF7, 0x5F, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0xF8, 0xC6, 0xF8, 0xC3, 0xF8, 0xC4, /* 0x9C-0x9F */
+	0xF8, 0xC5, 0xC6, 0x5C, 0x00, 0x00, 0xF9, 0x51, /* 0xA0-0xA3 */
+	0xF9, 0x50, 0xF9, 0x4F, 0xF9, 0x70, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xF9, 0xBE, 0xF9, 0xAB, 0xC6, 0x6E, 0xA8, 0xAD, /* 0xA8-0xAB */
+	0xB0, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0xB8, 0xFA, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0xBD, 0xF6, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0xEB, 0xC8, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0xC2, 0xDF, 0x00, 0x00, 0xF3, 0x55, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xF9, 0xAC, 0xA8, 0xAE, 0xAA, 0xEE, /* 0xC8-0xCB */
+	0xAD, 0x79, 0xAD, 0x78, 0x00, 0x00, 0xB0, 0x63, /* 0xCC-0xCF */
+	0x00, 0x00, 0xD3, 0xE8, 0xB0, 0x61, 0xD3, 0xE9, /* 0xD0-0xD3 */
+	0xB0, 0x62, 0x00, 0x00, 0x00, 0x00, 0xD7, 0xDF, /* 0xD4-0xD7 */
+	0xD7, 0xDB, 0x00, 0x00, 0x00, 0x00, 0xB3, 0x6D, /* 0xD8-0xDB */
+	0xD7, 0xDE, 0xD7, 0xDD, 0xD7, 0xDC, 0xB3, 0x6E, /* 0xDC-0xDF */
+	0xD7, 0xE0, 0xD7, 0xE1, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xDC, 0x43, 0xDC, 0x41, 0xDC, 0x45, /* 0xE4-0xE7 */
+	0xDC, 0x46, 0xDC, 0x4C, 0x00, 0x00, 0xDC, 0x48, /* 0xE8-0xEB */
+	0xDC, 0x4A, 0x00, 0x00, 0xDC, 0x42, 0xDB, 0xFC, /* 0xEC-0xEF */
+	0x00, 0x00, 0xDC, 0x49, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xDC, 0x4B, 0xDC, 0x44, 0xDC, 0x47, 0xDB, 0xFD, /* 0xF4-0xF7 */
+	0xB6, 0x62, 0xDC, 0x40, 0xDB, 0xFE, 0xB6, 0x61, /* 0xF8-0xFB */
+	0xB6, 0x63, 0x00, 0x00, 0xB8, 0xFD, 0xE0, 0x75, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_8F[512] = {
+	0xE0, 0x77, 0xE0, 0x76, 0xE0, 0x7B, 0xB8, 0xFB, /* 0x00-0x03 */
+	0x00, 0x00, 0xE0, 0x78, 0xE0, 0x74, 0xE0, 0x79, /* 0x04-0x07 */
+	0xE0, 0x7A, 0xB8, 0xFC, 0xB8, 0xFE, 0xE0, 0x7C, /* 0x08-0x0B */
+	0x00, 0x00, 0xE4, 0x67, 0xE4, 0x66, 0x00, 0x00, /* 0x0C-0x0F */
+	0xE4, 0x64, 0xE4, 0x65, 0xBB, 0xB3, 0xBB, 0xB5, /* 0x10-0x13 */
+	0xBB, 0xB2, 0xBB, 0xB4, 0xE8, 0x4D, 0xE8, 0x4E, /* 0x14-0x17 */
+	0xE8, 0x49, 0x00, 0x00, 0xE8, 0x4A, 0xBD, 0xF8, /* 0x18-0x1B */
+	0xBD, 0xFD, 0xBD, 0xF7, 0xBD, 0xFE, 0xBD, 0xF9, /* 0x1C-0x1F */
+	0xE8, 0x4B, 0x00, 0x00, 0x00, 0x00, 0xE8, 0x4C, /* 0x20-0x23 */
+	0xE8, 0x48, 0xBE, 0x40, 0xBD, 0xFB, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0xBD, 0xFA, 0xBD, 0xFC, 0x00, 0x00, /* 0x28-0x2B */
+	0xE8, 0x47, 0x00, 0x00, 0xEB, 0xCA, 0xBF, 0xE8, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0xEB, 0xCC, 0xBF, 0xEA, /* 0x30-0x33 */
+	0xEB, 0xCF, 0xEB, 0xCB, 0xEB, 0xC9, 0xEB, 0xCE, /* 0x34-0x37 */
+	0xBF, 0xE9, 0xEB, 0xCD, 0x00, 0x00, 0xBF, 0xE7, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0xC1, 0xD3, 0xC1, 0xD6, /* 0x3C-0x3F */
+	0xEE, 0xC1, 0x00, 0x00, 0xC1, 0xD4, 0xEE, 0xC0, /* 0x40-0x43 */
+	0xC1, 0xD2, 0xC1, 0xD5, 0xF1, 0x46, 0xF1, 0x47, /* 0x44-0x47 */
+	0xF1, 0x48, 0xC2, 0xE0, 0x00, 0x00, 0xF1, 0x49, /* 0x48-0x4B */
+	0x00, 0x00, 0xC2, 0xE1, 0xC3, 0xE2, 0xF3, 0x58, /* 0x4C-0x4F */
+	0xF3, 0x59, 0xF3, 0x57, 0xF3, 0x56, 0xF3, 0x5A, /* 0x50-0x53 */
+	0xC3, 0xE1, 0xF4, 0xDD, 0xF4, 0xDB, 0xF4, 0xDC, /* 0x54-0x57 */
+	0xF4, 0xDE, 0xF4, 0xDA, 0xF4, 0xDF, 0xF6, 0x58, /* 0x58-0x5B */
+	0x00, 0x00, 0xF6, 0x59, 0xF6, 0x57, 0xC5, 0x46, /* 0x5C-0x5F */
+	0xF7, 0x64, 0xC5, 0xAF, 0xF7, 0x65, 0xF8, 0x48, /* 0x60-0x63 */
+	0xF8, 0x47, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA8, 0xAF, /* 0x98-0x9B */
+	0xB6, 0x64, 0x00, 0x00, 0x00, 0x00, 0xB9, 0x40, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xBB, 0xB6, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0xBF, 0xEC, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xBF, 0xEB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0xC3, 0xE3, 0xC4, 0x7C, 0xC5, 0x47, /* 0xAC-0xAF */
+	0xA8, 0xB0, 0xB0, 0x64, 0xB9, 0x41, 0x00, 0x00, /* 0xB0-0xB3 */
+	0xF3, 0x5B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCB, 0xA6, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0xA8, 0xB1, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xA8, 0xB4, 0xA8, 0xB3, 0xA8, 0xB2, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xCB, 0xA5, 0x00, 0x00, 0xCD, 0xCD, /* 0xC8-0xCB */
+	0x00, 0x00, 0xCD, 0xCF, 0xAA, 0xEF, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0xAA, 0xF1, 0xCD, 0xCC, 0xCD, 0xCE, /* 0xD0-0xD3 */
+	0xAA, 0xF0, 0xCD, 0xD1, 0xCD, 0xD0, 0xCD, 0xD2, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0xD0, 0xB6, 0xD0, 0xB4, 0xAD, 0x7C, 0xD0, 0xB3, /* 0xE0-0xE3 */
+	0xAD, 0xA3, 0xAD, 0x7E, 0xAD, 0x7B, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xAD, 0xA4, 0x00, 0x00, 0xAD, 0x7D, 0xAD, 0xA2, /* 0xE8-0xEB */
+	0x00, 0x00, 0xAD, 0xA1, 0xD0, 0xB5, 0x00, 0x00, /* 0xEC-0xEF */
+	0xAD, 0x7A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xB0, 0x6A, 0xD3, 0xEB, 0xD3, 0xF1, 0xB0, 0x67, /* 0xF4-0xF7 */
+	0xB0, 0x6E, 0x00, 0x00, 0xB0, 0x69, 0xD3, 0xEE, /* 0xF8-0xFB */
+	0xD3, 0xF0, 0xB0, 0x6C, 0xD3, 0xEA, 0xD3, 0xED, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_90[512] = {
+	0xB0, 0x68, 0xB0, 0x65, 0xD3, 0xEC, 0xB0, 0x6B, /* 0x00-0x03 */
+	0xD3, 0xEF, 0xB0, 0x6D, 0xB0, 0x66, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD7, 0xE3, /* 0x08-0x0B */
+	0xD7, 0xE6, 0xB3, 0x70, 0x00, 0x00, 0xB3, 0x7A, /* 0x0C-0x0F */
+	0xB3, 0x76, 0xD7, 0xE4, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0xB3, 0x7E, 0xB3, 0x77, 0xB3, 0x7C, 0xB3, 0x72, /* 0x14-0x17 */
+	0x00, 0x00, 0xB3, 0x6F, 0xB3, 0x71, 0xB3, 0x7D, /* 0x18-0x1B */
+	0xD7, 0xE5, 0xB3, 0x75, 0xB3, 0x78, 0xB3, 0x74, /* 0x1C-0x1F */
+	0xB3, 0x79, 0xD7, 0xE7, 0xB3, 0x7B, 0xB3, 0x73, /* 0x20-0x23 */
+	0xD7, 0xE2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0xDC, 0x4D, 0xB6, 0x65, 0xDC, 0x4F, /* 0x2C-0x2F */
+	0x00, 0x00, 0xB6, 0x67, 0xB6, 0x69, 0x00, 0x00, /* 0x30-0x33 */
+	0xDC, 0x4E, 0xB6, 0x66, 0xB6, 0x6A, 0x00, 0x00, /* 0x34-0x37 */
+	0xB6, 0x68, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0xB9, 0x47, 0xE0, 0xA3, 0xB9, 0x4F, 0xE0, 0x7E, /* 0x3C-0x3F */
+	0x00, 0x00, 0xB9, 0x50, 0xB9, 0x45, 0x00, 0x00, /* 0x40-0x43 */
+	0xE0, 0xA1, 0x00, 0x00, 0x00, 0x00, 0xB9, 0x4A, /* 0x44-0x47 */
+	0x00, 0x00, 0xE0, 0xA2, 0xB9, 0x43, 0xB9, 0x42, /* 0x48-0x4B */
+	0x00, 0x00, 0xB9, 0x4D, 0xB9, 0x4C, 0xB9, 0x4B, /* 0x4C-0x4F */
+	0xB9, 0x49, 0xB9, 0x4E, 0xE0, 0x7D, 0xB9, 0x44, /* 0x50-0x53 */
+	0xB9, 0x46, 0xB9, 0x48, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0xBB, 0xB8, 0xBB, 0xBB, 0x00, 0x00, 0xBB, 0xBF, /* 0x58-0x5B */
+	0xBB, 0xB9, 0xBB, 0xBE, 0xBB, 0xBC, 0x00, 0x00, /* 0x5C-0x5F */
+	0xBB, 0xB7, 0x00, 0x00, 0xBB, 0xBD, 0xBB, 0xBA, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE8, 0x52, /* 0x64-0x67 */
+	0xBE, 0x43, 0xBE, 0x41, 0x00, 0x00, 0xE8, 0x53, /* 0x68-0x6B */
+	0x00, 0x00, 0xBE, 0x44, 0xBE, 0x42, 0xE8, 0x51, /* 0x6C-0x6F */
+	0xE8, 0x50, 0x00, 0x00, 0xBF, 0xF0, 0xE8, 0x4F, /* 0x70-0x73 */
+	0xBF, 0xEE, 0xBF, 0xED, 0xEB, 0xD0, 0xBE, 0x45, /* 0x74-0x77 */
+	0xBF, 0xEF, 0xEB, 0xD1, 0xBF, 0xF2, 0xEB, 0xD2, /* 0x78-0x7B */
+	0xBF, 0xF1, 0xC1, 0xD8, 0xEE, 0xC3, 0xC1, 0xD7, /* 0x7C-0x7F */
+	
+	0xC1, 0xDC, 0xC1, 0xDA, 0xC1, 0xDB, 0xC2, 0xE3, /* 0x80-0x83 */
+	0xC1, 0xD9, 0xEE, 0xC2, 0xEB, 0xD3, 0xC2, 0xE2, /* 0x84-0x87 */
+	0xC2, 0xE4, 0x00, 0x00, 0xC3, 0xE4, 0xC3, 0xE5, /* 0x88-0x8B */
+	0x00, 0x00, 0xF4, 0xE0, 0x00, 0x00, 0xC5, 0xDE, /* 0x8C-0x8F */
+	0xC5, 0xDD, 0xA8, 0xB6, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0xCA, 0x55, 0xB0, 0x6F, 0x00, 0x00, 0xCA, 0x52, /* 0x94-0x97 */
+	0xCA, 0x53, 0xCA, 0x51, 0x00, 0x00, 0xCA, 0x54, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0xCB, 0xAA, 0xCB, 0xA7, /* 0x9C-0x9F */
+	0xCB, 0xAC, 0xCB, 0xA8, 0xA8, 0xB7, 0xA8, 0xBA, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xCB, 0xA9, 0xA8, 0xB9, 0xCB, 0xAB, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0xA8, 0xB8, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCD, 0xD5, /* 0xAC-0xAF */
+	0xCD, 0xD7, 0xAA, 0xF4, 0xCD, 0xD3, 0xCD, 0xD6, /* 0xB0-0xB3 */
+	0xCD, 0xD4, 0xAA, 0xF2, 0xAA, 0xF5, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xAA, 0xF3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0xD0, 0xB8, 0xD0, 0xBC, 0xD0, 0xB9, /* 0xBC-0xBF */
+	0x00, 0x00, 0xAD, 0xA7, 0x00, 0x00, 0xAD, 0xA8, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xD0, 0xBB, 0x00, 0x00, 0xD0, 0xBD, /* 0xC4-0xC7 */
+	0xD0, 0xBF, 0x00, 0x00, 0xAD, 0xA5, 0xD0, 0xBE, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0xAD, 0xA6, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xD7, 0xEE, 0xD0, 0xBA, 0xD3, 0xF2, 0xD3, 0xFB, /* 0xD4-0xD7 */
+	0xD3, 0xF9, 0xD3, 0xF4, 0xD3, 0xF5, 0xD3, 0xFA, /* 0xD8-0xDB */
+	0xD3, 0xFC, 0xB0, 0x71, 0x00, 0x00, 0xD3, 0xF7, /* 0xDC-0xDF */
+	0xD3, 0xF3, 0xB0, 0x70, 0xB0, 0x72, 0xD3, 0xF6, /* 0xE0-0xE3 */
+	0xD3, 0xFD, 0xD3, 0xF8, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xB3, 0xA1, 0xD7, 0xF1, 0xD7, 0xE9, 0xD7, 0xEF, /* 0xE8-0xEB */
+	0xD7, 0xF0, 0xB3, 0xA2, 0x00, 0x00, 0xD7, 0xE8, /* 0xEC-0xEF */
+	0xD7, 0xEA, 0xD0, 0xB7, 0xD7, 0xEC, 0xD7, 0xED, /* 0xF0-0xF3 */
+	0xD7, 0xEB, 0xB6, 0x6C, 0x00, 0x00, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xDC, 0x56, 0xEB, 0xD4, 0xDC, 0x57, /* 0xF8-0xFB */
+	0xDC, 0x54, 0xB3, 0xA3, 0xB6, 0x6E, 0xDC, 0x53, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_91[512] = {
+	0xDC, 0x59, 0xDC, 0x58, 0xB6, 0x6B, 0xDC, 0x5C, /* 0x00-0x03 */
+	0xDC, 0x52, 0xDC, 0x5B, 0xDC, 0x50, 0xDC, 0x5A, /* 0x04-0x07 */
+	0xDC, 0x55, 0xB6, 0x6D, 0x00, 0x00, 0xE0, 0xAA, /* 0x08-0x0B */
+	0x00, 0x00, 0xE0, 0xA5, 0xE0, 0xAB, 0xE0, 0xA6, /* 0x0C-0x0F */
+	0xE0, 0xA4, 0xE0, 0xA7, 0xB9, 0x51, 0x00, 0x00, /* 0x10-0x13 */
+	0xE0, 0xA9, 0x00, 0x00, 0xE0, 0xA8, 0xB9, 0x52, /* 0x14-0x17 */
+	0xBB, 0xC1, 0xBB, 0xC0, 0xE4, 0x6E, 0xE4, 0x71, /* 0x18-0x1B */
+	0xE4, 0x69, 0xE4, 0x6D, 0xBB, 0xC2, 0xE4, 0x6C, /* 0x1C-0x1F */
+	0xE4, 0x6A, 0xE4, 0x70, 0xE4, 0x6B, 0xE4, 0x68, /* 0x20-0x23 */
+	0xE4, 0x6F, 0x00, 0x00, 0xE8, 0x59, 0xBE, 0x48, /* 0x24-0x27 */
+	0xF1, 0x4A, 0xE8, 0x56, 0xE8, 0x57, 0xE8, 0x55, /* 0x28-0x2B */
+	0xDC, 0x51, 0xBE, 0x47, 0xE8, 0x5A, 0xE8, 0x54, /* 0x2C-0x2F */
+	0xBE, 0x46, 0xBE, 0x49, 0xE8, 0x58, 0xEB, 0xD5, /* 0x30-0x33 */
+	0xBF, 0xF3, 0xEB, 0xD6, 0xEB, 0xD7, 0x00, 0x00, /* 0x34-0x37 */
+	0xEE, 0xC4, 0xC1, 0xDD, 0xF1, 0x4B, 0xF1, 0x4C, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0xF1, 0x4D, 0xF3, 0x5D, /* 0x3C-0x3F */
+	0xF3, 0x5C, 0xF4, 0xE2, 0x00, 0x00, 0xF4, 0xE1, /* 0x40-0x43 */
+	0xF6, 0x5B, 0xF6, 0x5C, 0xF6, 0x5A, 0xF7, 0x66, /* 0x44-0x47 */
+	0xC5, 0xB0, 0xA8, 0xBB, 0xAD, 0xAA, 0xAD, 0xA9, /* 0x48-0x4B */
+	0xB0, 0x75, 0xB0, 0x74, 0xD4, 0x40, 0xD4, 0x41, /* 0x4C-0x4F */
+	0xD3, 0xFE, 0x00, 0x00, 0xB0, 0x73, 0xD7, 0xF5, /* 0x50-0x53 */
+	0x00, 0x00, 0xD7, 0xF6, 0xD7, 0xF2, 0xB3, 0xA4, /* 0x54-0x57 */
+	0xD7, 0xF3, 0x00, 0x00, 0xD7, 0xF4, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDC, 0x5F, /* 0x5C-0x5F */
+	0xDC, 0x61, 0xDC, 0x5D, 0xDC, 0x60, 0xB6, 0x6F, /* 0x60-0x63 */
+	0xDC, 0x5E, 0xB6, 0x70, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0xDD, 0x73, 0xB9, 0x55, 0xB9, 0x54, 0x00, 0x00, /* 0x68-0x6B */
+	0xB9, 0x53, 0x00, 0x00, 0xE0, 0xAC, 0xE0, 0xAD, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0x73, 0xE4, 0x75, /* 0x70-0x73 */
+	0xBB, 0xC6, 0xBB, 0xC3, 0x00, 0x00, 0xBB, 0xC5, /* 0x74-0x77 */
+	0xBB, 0xC4, 0xE4, 0x74, 0xE4, 0x72, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xE8, 0x61, 0xE8, 0x5E, 0xE8, 0x5F, 0xBE, 0x4D, /* 0x80-0x83 */
+	0xE8, 0x60, 0xE8, 0x5B, 0xE8, 0x5C, 0xBE, 0x4A, /* 0x84-0x87 */
+	0x00, 0x00, 0xBE, 0x4B, 0xE8, 0x5D, 0xBE, 0x4C, /* 0x88-0x8B */
+	0x00, 0x00, 0xEB, 0xDB, 0x00, 0x00, 0xEB, 0xDC, /* 0x8C-0x8F */
+	0xEB, 0xD9, 0xEB, 0xDA, 0xBF, 0xF4, 0xEB, 0xD8, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0xEE, 0xC8, 0xEE, 0xC5, 0xEE, 0xC7, /* 0x98-0x9B */
+	0xC1, 0xE0, 0xEE, 0xCB, 0xC1, 0xDF, 0xEE, 0xC9, /* 0x9C-0x9F */
+	0xEE, 0xCC, 0xEE, 0xCA, 0xEE, 0xC6, 0xC1, 0xDE, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xF1, 0x4F, 0x00, 0x00, 0xF1, 0x50, /* 0xA4-0xA7 */
+	0xF1, 0x4E, 0x00, 0x00, 0xF1, 0x52, 0xC2, 0xE5, /* 0xA8-0xAB */
+	0xC2, 0xE6, 0xF3, 0x5F, 0xC3, 0xE7, 0xF1, 0x51, /* 0xAC-0xAF */
+	0xF3, 0x5E, 0xC3, 0xE6, 0xF4, 0xE5, 0xF4, 0xE6, /* 0xB0-0xB3 */
+	0xC4, 0xBF, 0xF4, 0xE4, 0x00, 0x00, 0xF4, 0xE3, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xF6, 0x5D, 0xC5, 0x48, 0x00, 0x00, /* 0xB8-0xBB */
+	0xF8, 0x49, 0xF8, 0xC8, 0xF8, 0xC7, 0x00, 0x00, /* 0xBC-0xBF */
+	0xC6, 0x43, 0xC6, 0x5D, 0xF8, 0xC9, 0xF9, 0x71, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xC6, 0x6F, 0xA8, 0xBC, 0xAA, 0xF6, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xB9, 0x56, 0x00, 0x00, 0xC4, 0xC0, /* 0xC8-0xCB */
+	0xA8, 0xBD, 0xAD, 0xAB, 0xB3, 0xA5, 0xB6, 0x71, /* 0xCC-0xCF */
+	0xC2, 0xE7, 0xAA, 0xF7, 0x00, 0x00, 0xD0, 0xC1, /* 0xD0-0xD3 */
+	0xD0, 0xC0, 0xD4, 0x42, 0x00, 0x00, 0xB0, 0x78, /* 0xD4-0xD7 */
+	0xB0, 0x76, 0xB0, 0x7A, 0xD4, 0x44, 0x00, 0x00, /* 0xD8-0xDB */
+	0xB0, 0x79, 0xB0, 0x77, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0xD4, 0x43, 0xB3, 0xA8, /* 0xE0-0xE3 */
+	0xD7, 0xFC, 0x00, 0x00, 0xB3, 0xA7, 0xB3, 0xA9, /* 0xE4-0xE7 */
+	0xD8, 0x42, 0xB3, 0xAB, 0xD7, 0xFE, 0xD8, 0x40, /* 0xE8-0xEB */
+	0xD7, 0xF7, 0xB3, 0xAA, 0xD8, 0x43, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0xD7, 0xF9, 0x00, 0x00, 0xD7, 0xFA, /* 0xF0-0xF3 */
+	0xD7, 0xF8, 0xB3, 0xA6, 0x00, 0x00, 0xD8, 0x41, /* 0xF4-0xF7 */
+	0xD7, 0xFB, 0xD7, 0xFD, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0xDC, 0x6D, 0x00, 0x00, 0xDC, 0x6C, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_92[512] = {
+	0xDC, 0x6A, 0xDC, 0x62, 0xDC, 0x71, 0xDC, 0x65, /* 0x00-0x03 */
+	0xDC, 0x6F, 0xDC, 0x76, 0xDC, 0x6E, 0xB6, 0x79, /* 0x04-0x07 */
+	0x00, 0x00, 0xB6, 0x75, 0xDC, 0x63, 0x00, 0x00, /* 0x08-0x0B */
+	0xDC, 0x69, 0xB6, 0x77, 0x00, 0x00, 0xDC, 0x68, /* 0x0C-0x0F */
+	0xB6, 0x78, 0xB6, 0x7A, 0xDC, 0x6B, 0x00, 0x00, /* 0x10-0x13 */
+	0xB6, 0x72, 0xB6, 0x73, 0xDC, 0x77, 0xDC, 0x75, /* 0x14-0x17 */
+	0x00, 0x00, 0xDC, 0x74, 0xDC, 0x66, 0x00, 0x00, /* 0x18-0x1B */
+	0xDC, 0x72, 0x00, 0x00, 0xB6, 0x76, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB6, 0x74, /* 0x20-0x23 */
+	0xDC, 0x73, 0xDC, 0x64, 0xDC, 0x67, 0xDC, 0x70, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0xE4, 0xBA, 0xE0, 0xB7, 0x00, 0x00, /* 0x2C-0x2F */
+	0xE0, 0xB0, 0xE0, 0xC3, 0xE0, 0xCC, 0xE0, 0xB3, /* 0x30-0x33 */
+	0xB9, 0x61, 0x00, 0x00, 0xE0, 0xC0, 0xB9, 0x57, /* 0x34-0x37 */
+	0xB9, 0x59, 0xB9, 0x65, 0xE0, 0xB1, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0xB9, 0x5A, 0xB9, 0x5C, 0xB9, 0x66, /* 0x3C-0x3F */
+	0xB9, 0x5B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0xB9, 0x64, 0xE0, 0xB9, 0x00, 0x00, /* 0x44-0x47 */
+	0xE0, 0xAE, 0xB9, 0x62, 0xE0, 0xB8, 0xB9, 0x5E, /* 0x48-0x4B */
+	0xE0, 0xCA, 0xB9, 0x63, 0xE0, 0xC8, 0xE0, 0xBC, /* 0x4C-0x4F */
+	0xE0, 0xC6, 0xB9, 0x60, 0xE0, 0xAF, 0xE0, 0xC9, /* 0x50-0x53 */
+	0xE0, 0xC4, 0x00, 0x00, 0xE0, 0xCB, 0xB9, 0x58, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0xB9, 0x67, 0xB9, 0x5D, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0xE0, 0xB5, 0x00, 0x00, /* 0x5C-0x5F */
+	0xE0, 0xBD, 0xE0, 0xC1, 0x00, 0x00, 0xE0, 0xC5, /* 0x60-0x63 */
+	0xB9, 0x5F, 0xE0, 0xB4, 0xE0, 0xB2, 0xE0, 0xBE, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0xE0, 0xBB, 0xE0, 0xBA, 0x00, 0x00, 0xE0, 0xBF, /* 0x6C-0x6F */
+	0xE0, 0xC2, 0x00, 0x00, 0xE0, 0xC7, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0x78, 0x00, 0x00, /* 0x74-0x77 */
+	0xBB, 0xC7, 0xE4, 0xA4, 0xE4, 0x7A, 0xBB, 0xCC, /* 0x78-0x7B */
+	0xBB, 0xD0, 0xE4, 0xAD, 0xE4, 0xB5, 0xE4, 0xA6, /* 0x7C-0x7F */
+	
+	0xBB, 0xC8, 0x00, 0x00, 0xE4, 0xAA, 0xE0, 0xB6, /* 0x80-0x83 */
+	0x00, 0x00, 0xBB, 0xC9, 0xE4, 0xB1, 0xE4, 0xB6, /* 0x84-0x87 */
+	0xE4, 0xAE, 0x00, 0x00, 0xE4, 0xB0, 0xE4, 0xB9, /* 0x88-0x8B */
+	0xE4, 0xB2, 0xE4, 0x7E, 0xE4, 0xA9, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0xBB, 0xD1, 0x00, 0x00, 0xBB, 0xCD, /* 0x90-0x93 */
+	0xE4, 0x7C, 0xE4, 0xAB, 0xBB, 0xCB, 0xE4, 0xA5, /* 0x94-0x97 */
+	0xBB, 0xCA, 0xE4, 0xB3, 0xE4, 0xA2, 0xE4, 0x79, /* 0x98-0x9B */
+	0xBB, 0xCE, 0xE4, 0xB8, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0xE4, 0x7B, 0xE4, 0xAF, 0xE4, 0xAC, 0xE4, 0xA7, /* 0xA0-0xA3 */
+	0xE4, 0x77, 0xE4, 0x76, 0xE4, 0xA1, 0xE4, 0xB4, /* 0xA4-0xA7 */
+	0xBB, 0xCF, 0xE4, 0xB7, 0xE4, 0x7D, 0xE4, 0xA3, /* 0xA8-0xAB */
+	0xBE, 0x52, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0xBE, 0x5A, 0xBE, 0x55, /* 0xB0-0xB3 */
+	0xE8, 0xA4, 0xE8, 0xA1, 0xE8, 0x67, 0xBE, 0x50, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xF9, 0xD7, 0x00, 0x00, 0xBE, 0x4F, /* 0xB8-0xBB */
+	0xBE, 0x56, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0xE8, 0x65, 0xBE, 0x54, 0xE8, 0x71, 0xE8, 0x63, /* 0xC0-0xC3 */
+	0xE8, 0x64, 0xBE, 0x4E, 0xE8, 0xA3, 0xBE, 0x58, /* 0xC4-0xC7 */
+	0xE8, 0x74, 0xE8, 0x79, 0xE8, 0x73, 0xEB, 0xEE, /* 0xC8-0xCB */
+	0xE8, 0x6F, 0xE8, 0x77, 0xE8, 0x75, 0xE8, 0x68, /* 0xCC-0xCF */
+	0xE8, 0x62, 0xE8, 0x7D, 0xBE, 0x57, 0xE8, 0x7E, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xE8, 0x78, 0x00, 0x00, 0xE8, 0x6D, /* 0xD4-0xD7 */
+	0xE8, 0x6B, 0xE8, 0x66, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0xE8, 0x6E, 0xE8, 0x7B, 0xE8, 0x6A, /* 0xDC-0xDF */
+	0xE8, 0x7A, 0xE8, 0xA2, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0xBE, 0x53, 0x00, 0x00, 0xE8, 0x76, 0xE8, 0x7C, /* 0xE4-0xE7 */
+	0xE8, 0x72, 0xE8, 0x6C, 0xBE, 0x51, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0xA8, 0xE8, 0x70, /* 0xEC-0xEF */
+	0xBE, 0x59, 0xE8, 0x69, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEB, 0xF4, /* 0xF4-0xF7 */
+	0xBF, 0xF7, 0xEB, 0xF3, 0xEB, 0xF0, 0xEC, 0x44, /* 0xF8-0xFB */
+	0xBF, 0xFB, 0x00, 0x00, 0xEC, 0x41, 0xEB, 0xF8, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_93[512] = {
+	0xEC, 0x43, 0xEB, 0xE9, 0xEB, 0xF6, 0x00, 0x00, /* 0x00-0x03 */
+	0xBF, 0xFD, 0x00, 0x00, 0xEB, 0xE1, 0x00, 0x00, /* 0x04-0x07 */
+	0xEB, 0xDF, 0xEC, 0x42, 0x00, 0x00, 0xEC, 0x40, /* 0x08-0x0B */
+	0xEB, 0xFE, 0xEB, 0xED, 0xEB, 0xEC, 0xEB, 0xE2, /* 0x0C-0x0F */
+	0xC0, 0x40, 0x00, 0x00, 0xEB, 0xE8, 0xEB, 0xF2, /* 0x10-0x13 */
+	0xEB, 0xFD, 0xC0, 0x43, 0xEC, 0x45, 0x00, 0x00, /* 0x14-0x17 */
+	0xC1, 0xE8, 0xC0, 0x45, 0xBF, 0xFE, 0xEB, 0xE6, /* 0x18-0x1B */
+	0x00, 0x00, 0xEB, 0xEF, 0xEB, 0xDE, 0xEB, 0xE0, /* 0x1C-0x1F */
+	0xBF, 0xF5, 0xC0, 0x42, 0xBF, 0xFA, 0xEB, 0xE7, /* 0x20-0x23 */
+	0xEB, 0xF7, 0xEB, 0xF1, 0xC0, 0x41, 0xEB, 0xDD, /* 0x24-0x27 */
+	0xC1, 0xE3, 0xEB, 0xF9, 0xEB, 0xFC, 0xBF, 0xFC, /* 0x28-0x2B */
+	0x00, 0x00, 0xEB, 0xEB, 0xC0, 0x44, 0xBF, 0xF9, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xBF, 0xF8, /* 0x30-0x33 */
+	0xEB, 0xF5, 0xEB, 0xFB, 0xBF, 0xF6, 0x00, 0x00, /* 0x34-0x37 */
+	0xEB, 0xE4, 0xEB, 0xFA, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0xEB, 0xE5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xEB, 0xEA, 0xEE, 0xD2, /* 0x44-0x47 */
+	0x00, 0x00, 0xEE, 0xD7, 0xC1, 0xE5, 0xC1, 0xE7, /* 0x48-0x4B */
+	0xEE, 0xDD, 0xC1, 0xE1, 0xEE, 0xEC, 0xEE, 0xE3, /* 0x4C-0x4F */
+	0xEE, 0xD8, 0xEE, 0xD9, 0xEE, 0xE2, 0x00, 0x00, /* 0x50-0x53 */
+	0xC1, 0xEE, 0xEE, 0xE1, 0xEE, 0xD1, 0xEE, 0xE0, /* 0x54-0x57 */
+	0xEE, 0xD4, 0xEE, 0xED, 0xC1, 0xED, 0xC1, 0xEB, /* 0x58-0x5B */
+	0xEE, 0xD5, 0x00, 0x00, 0xEE, 0xE8, 0x00, 0x00, /* 0x5C-0x5F */
+	0xEE, 0xDA, 0xEE, 0xE7, 0x00, 0x00, 0xEE, 0xE9, /* 0x60-0x63 */
+	0xEE, 0xD0, 0xC1, 0xE6, 0x00, 0x00, 0xEE, 0xEA, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0xEE, 0xDE, 0x00, 0x00, /* 0x68-0x6B */
+	0xC1, 0xEA, 0xEE, 0xDB, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0xC1, 0xEC, 0xEE, 0xE4, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0xC1, 0xE4, 0xEE, 0xD6, 0xEE, 0xE5, /* 0x74-0x77 */
+	0x00, 0x00, 0xEE, 0xDF, 0xEB, 0xE3, 0xEE, 0xE6, /* 0x78-0x7B */
+	0xEE, 0xD3, 0x00, 0x00, 0xC1, 0xE9, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xEE, 0xEB, 0x00, 0x00, 0xC1, 0xE2, 0xEE, 0xCE, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0xF1, 0x60, 0xF1, 0x59, 0xC2, 0xE9, 0x00, 0x00, /* 0x88-0x8B */
+	0xF1, 0x54, 0xF1, 0x63, 0xF1, 0x5B, 0xEE, 0xDC, /* 0x8C-0x8F */
+	0x00, 0x00, 0xF1, 0x65, 0xF1, 0x55, 0x00, 0x00, /* 0x90-0x93 */
+	0xC2, 0xE8, 0xF1, 0x5F, 0xC2, 0xEA, 0xC2, 0xF2, /* 0x94-0x97 */
+	0xC2, 0xF0, 0xF1, 0x61, 0xC2, 0xF1, 0xF1, 0x57, /* 0x98-0x9B */
+	0x00, 0x00, 0xF1, 0x58, 0xF1, 0x5D, 0xF1, 0x62, /* 0x9C-0x9F */
+	0x00, 0x00, 0xEE, 0xCD, 0xC2, 0xEB, 0xF1, 0x6A, /* 0xA0-0xA3 */
+	0xF1, 0x67, 0xF1, 0x6B, 0xF1, 0x5E, 0xF1, 0x5A, /* 0xA4-0xA7 */
+	0xF1, 0x68, 0xF3, 0x6A, 0xF1, 0x5C, 0x00, 0x00, /* 0xA8-0xAB */
+	0xC2, 0xEE, 0x00, 0x00, 0xC2, 0xED, 0xEE, 0xCF, /* 0xAC-0xAF */
+	0xC2, 0xEF, 0xF1, 0x64, 0xF1, 0x66, 0xC2, 0xEC, /* 0xB0-0xB3 */
+	0xF1, 0x69, 0xF1, 0x53, 0x00, 0x00, 0xF1, 0x56, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0xF3, 0x73, 0x00, 0x00, 0xF3, 0x63, 0xC3, 0xEB, /* 0xC0-0xC3 */
+	0xF3, 0x71, 0x00, 0x00, 0x00, 0x00, 0xF3, 0x61, /* 0xC4-0xC7 */
+	0xC3, 0xEC, 0x00, 0x00, 0xF3, 0x6C, 0x00, 0x00, /* 0xC8-0xCB */
+	0xF3, 0x68, 0xC3, 0xF1, 0xF3, 0x72, 0xF3, 0x62, /* 0xCC-0xCF */
+	0xF3, 0x65, 0xC3, 0xE9, 0xF3, 0x74, 0x00, 0x00, /* 0xD0-0xD3 */
+	0xF3, 0x6D, 0xF3, 0x70, 0xC3, 0xEF, 0xC3, 0xF4, /* 0xD4-0xD7 */
+	0xC3, 0xF2, 0xF3, 0x69, 0xF3, 0x64, 0x00, 0x00, /* 0xD8-0xDB */
+	0xC3, 0xED, 0xC3, 0xEE, 0xF3, 0x60, 0xC3, 0xEA, /* 0xDC-0xDF */
+	0x00, 0x00, 0xC3, 0xE8, 0xC3, 0xF0, 0xF3, 0x6F, /* 0xE0-0xE3 */
+	0xC3, 0xF3, 0x00, 0x00, 0xF3, 0x6B, 0xF3, 0x75, /* 0xE4-0xE7 */
+	0xC3, 0xF5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0xF3, 0x67, 0x00, 0x00, 0xF3, 0x6E, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0xF4, 0xF3, 0xF5, 0x42, 0xF4, 0xF5, /* 0xF4-0xF7 */
+	0xF4, 0xFC, 0xF3, 0x66, 0xF4, 0xFA, 0xF4, 0xE9, /* 0xF8-0xFB */
+	0xF5, 0x40, 0xC4, 0xC3, 0xF4, 0xED, 0xF4, 0xFE, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_94[512] = {
+	0xF4, 0xF4, 0x00, 0x00, 0x00, 0x00, 0xC4, 0xC2, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0xF5, 0x44, 0xF4, 0xF6, /* 0x04-0x07 */
+	0x00, 0x00, 0xF4, 0xFB, 0xF4, 0xFD, 0xF4, 0xE7, /* 0x08-0x0B */
+	0xF5, 0x41, 0xF4, 0xF2, 0xF4, 0xF7, 0xF4, 0xEB, /* 0x0C-0x0F */
+	0xF4, 0xEF, 0xF5, 0x43, 0xF4, 0xF9, 0xF4, 0xE8, /* 0x10-0x13 */
+	0xF4, 0xEC, 0xF4, 0xEE, 0xF4, 0xF8, 0x00, 0x00, /* 0x14-0x17 */
+	0xC4, 0xC1, 0xF4, 0xF1, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0xF4, 0xEA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0xF4, 0xF0, 0xF6, 0x61, 0xF6, 0x66, 0xC5, 0x4F, /* 0x28-0x2B */
+	0xF6, 0x68, 0x00, 0x00, 0xC5, 0x49, 0x00, 0x00, /* 0x2C-0x2F */
+	0xF6, 0x64, 0xF6, 0x6A, 0xC5, 0x4E, 0xC5, 0x4A, /* 0x30-0x33 */
+	0x00, 0x00, 0xC5, 0x4B, 0xF6, 0x60, 0xF6, 0x67, /* 0x34-0x37 */
+	0xC5, 0x4D, 0xF6, 0x65, 0xC5, 0x4C, 0xF6, 0x5F, /* 0x38-0x3B */
+	0xF6, 0x63, 0xF6, 0x62, 0x00, 0x00, 0xF6, 0x5E, /* 0x3C-0x3F */
+	0xF6, 0x69, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0xC5, 0xB1, 0xF7, 0x6D, 0xF7, 0x70, 0xF7, 0x6C, /* 0x44-0x47 */
+	0xF7, 0x6E, 0xF7, 0x6F, 0xF7, 0x69, 0xF7, 0x6A, /* 0x48-0x4B */
+	0xF7, 0x67, 0x00, 0x00, 0x00, 0x00, 0xF7, 0x6B, /* 0x4C-0x4F */
+	0xF7, 0x68, 0xC5, 0xB2, 0xC5, 0xB3, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0xF8, 0x4B, 0x00, 0x00, 0xF8, 0x4D, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0xF8, 0x4C, 0xF8, 0x4E, 0x00, 0x00, /* 0x5C-0x5F */
+	0xC5, 0xE0, 0x00, 0x00, 0xF8, 0x4A, 0xC5, 0xDF, /* 0x60-0x63 */
+	0xC5, 0xE1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0xF8, 0xCB, 0xF8, 0xCC, 0xC6, 0x44, 0xF8, 0xCA, /* 0x68-0x6B */
+	0x00, 0x00, 0xF9, 0x53, 0xF9, 0x52, 0xF9, 0x54, /* 0x6C-0x6F */
+	0xC6, 0x5F, 0xF9, 0x55, 0xC6, 0x5E, 0xF9, 0x56, /* 0x70-0x73 */
+	0xF9, 0x72, 0xF9, 0x75, 0xF9, 0x74, 0xC6, 0x68, /* 0x74-0x77 */
+	0xF9, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0xC6, 0x72, 0xC6, 0x70, 0xC6, 0x71, 0xC6, 0x77, /* 0x7C-0x7F */
+	
+	0xF9, 0xC0, 0xF9, 0xC1, 0xF9, 0xBF, 0xF9, 0xC9, /* 0x80-0x83 */
+};
+
+static unsigned char u2c_95[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xAA, 0xF8, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0xD8, 0x44, 0xDC, 0x78, /* 0x78-0x7B */
+	0xE8, 0xA5, 0xF3, 0x76, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xAA, 0xF9, 0x00, 0x00, 0xAD, 0xAC, 0xB0, 0x7B, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0xD8, 0x45, 0x00, 0x00, /* 0x84-0x87 */
+	0xD8, 0x46, 0xB3, 0xAC, 0x00, 0x00, 0xB6, 0x7D, /* 0x88-0x8B */
+	0xDC, 0x7A, 0xDC, 0x79, 0xB6, 0xA3, 0xB6, 0x7C, /* 0x8C-0x8F */
+	0xDC, 0x7B, 0xB6, 0x7E, 0xB6, 0xA2, 0xB6, 0xA1, /* 0x90-0x93 */
+	0xB6, 0x7B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0xB9, 0x68, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xD0, /* 0x98-0x9B */
+	0xE0, 0xCE, 0x00, 0x00, 0xE0, 0xCF, 0xE0, 0xCD, /* 0x9C-0x9F */
+	0x00, 0x00, 0xBB, 0xD2, 0x00, 0x00, 0xBB, 0xD5, /* 0xA0-0xA3 */
+	0xBB, 0xD7, 0xBB, 0xD6, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xBB, 0xD3, 0xBB, 0xD4, 0x00, 0x00, 0xE8, 0xA7, /* 0xA8-0xAB */
+	0xE8, 0xA6, 0xBE, 0x5B, 0xE8, 0xA8, 0x00, 0x00, /* 0xAC-0xAF */
+	0xE8, 0xA9, 0xBE, 0x5C, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xEC, 0x4D, 0xEC, 0x4B, 0xEE, 0xF3, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xEC, 0x49, 0xEC, 0x4A, 0xC0, 0x46, /* 0xB8-0xBB */
+	0xEC, 0x46, 0xEC, 0x4E, 0xEC, 0x48, 0xEC, 0x4C, /* 0xBC-0xBF */
+	0xEE, 0xEF, 0x00, 0x00, 0x00, 0x00, 0xEE, 0xF1, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xEE, 0xF2, 0xC1, 0xF3, 0xEE, 0xEE, /* 0xC4-0xC7 */
+	0xC1, 0xF2, 0xEE, 0xF0, 0xC1, 0xEF, 0xC1, 0xF0, /* 0xC8-0xCB */
+	0xC1, 0xF1, 0xEC, 0x47, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0xC2, 0xF5, 0xF1, 0x6E, 0xF1, 0x6C, 0xF1, 0x6D, /* 0xD0-0xD3 */
+	0xC2, 0xF3, 0xC2, 0xF6, 0xC2, 0xF4, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0xF3, 0x77, 0xF3, 0x78, /* 0xD8-0xDB */
+	0xC3, 0xF6, 0x00, 0x00, 0xF5, 0x45, 0xF5, 0x47, /* 0xDC-0xDF */
+	0xF5, 0x46, 0xC4, 0xC4, 0xC5, 0x50, 0xF6, 0x6D, /* 0xE0-0xE3 */
+	0xF6, 0x6C, 0xF6, 0x6B, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+};
+
+static unsigned char u2c_96[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0xAA, 0xFA, 0x00, 0x00, 0xC9, 0xAA, 0x00, 0x00, /* 0x1C-0x1F */
+	0xCA, 0x58, 0xA6, 0xE9, 0xCA, 0x56, 0xCA, 0x59, /* 0x20-0x23 */
+	0xCA, 0x57, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0xCB, 0xAE, 0x00, 0x00, 0xA8, 0xC1, 0x00, 0x00, /* 0x28-0x2B */
+	0xA8, 0xC2, 0xCB, 0xB0, 0xA8, 0xBF, 0xCB, 0xAF, /* 0x2C-0x2F */
+	0xCB, 0xAD, 0xA8, 0xC0, 0xA8, 0xBE, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0xCD, 0xD8, 0xCD, 0xDB, 0xAA, 0xFD, /* 0x38-0x3B */
+	0xCD, 0xDA, 0xCD, 0xD9, 0x00, 0x00, 0xAA, 0xFC, /* 0x3C-0x3F */
+	0xAA, 0xFB, 0x00, 0x00, 0xAB, 0x40, 0xCD, 0xDC, /* 0x40-0x43 */
+	0xAA, 0xFE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0xD0, 0xC6, 0xAD, 0xAE, /* 0x48-0x4B */
+	0xAD, 0xAF, 0xAD, 0xB0, 0xD0, 0xC7, 0xD0, 0xC3, /* 0x4C-0x4F */
+	0xAD, 0xAD, 0xD0, 0xC4, 0x00, 0x00, 0xD0, 0xC5, /* 0x50-0x53 */
+	0xD0, 0xC2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0xB0, 0xA4, 0x00, 0x00, 0x00, 0x00, 0xB0, 0xA1, /* 0x58-0x5B */
+	0xD4, 0x45, 0xB0, 0xA2, 0xB0, 0xA5, 0xD4, 0x46, /* 0x5C-0x5F */
+	0x00, 0x00, 0xB0, 0x7E, 0xB0, 0x7C, 0xB0, 0x7D, /* 0x60-0x63 */
+	0xB0, 0xA3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0xB3, 0xAD, 0xD8, 0x49, /* 0x68-0x6B */
+	0xB3, 0xB5, 0xD8, 0x48, 0x00, 0x00, 0xD8, 0x4B, /* 0x6C-0x6F */
+	0xB3, 0xB1, 0xD8, 0x4A, 0xB6, 0xAB, 0xB3, 0xAF, /* 0x70-0x73 */
+	0xB3, 0xB2, 0xB3, 0xAE, 0xB3, 0xB3, 0xB3, 0xB4, /* 0x74-0x77 */
+	0xB3, 0xB0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0xD8, 0x47, 0xB6, 0xA7, 0xDC, 0x7D, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xDC, 0xA3, 0x00, 0x00, 0x00, 0x00, 0xDC, 0xA2, /* 0x80-0x83 */
+	0xB6, 0xAC, 0xB6, 0xA8, 0xB6, 0xA9, 0xDC, 0x7C, /* 0x84-0x87 */
+	0xDC, 0x7E, 0xDC, 0xA1, 0xB6, 0xA4, 0xB6, 0xA6, /* 0x88-0x8B */
+	0x00, 0x00, 0xB6, 0xAA, 0xB6, 0xA5, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0xE0, 0xD3, 0xE0, 0xD1, 0xE0, 0xD2, /* 0x90-0x93 */
+	0xB9, 0x6A, 0xB9, 0x6B, 0x00, 0x00, 0xE0, 0xD4, /* 0x94-0x97 */
+	0xB9, 0x69, 0xBB, 0xD8, 0x00, 0x00, 0xBB, 0xDA, /* 0x98-0x9B */
+	0xBB, 0xD9, 0x00, 0x00, 0xE4, 0xBB, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0xE4, 0xBC, 0xE8, 0xAB, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xE8, 0xAA, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x47, /* 0xA4-0xA7 */
+	0xC0, 0x48, 0xEC, 0x4F, 0xC0, 0x49, 0x00, 0x00, /* 0xA8-0xAB */
+	0xEE, 0xF6, 0x00, 0x00, 0xEE, 0xF4, 0x00, 0x00, /* 0xAC-0xAF */
+	0xEE, 0xF5, 0xC1, 0xF4, 0x00, 0x00, 0xF1, 0x6F, /* 0xB0-0xB3 */
+	0xC3, 0xF7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xC1, 0xF5, 0xAB, 0x41, 0x00, 0x00, 0xB0, 0xA6, /* 0xB8-0xBB */
+	0xD4, 0x47, 0x00, 0x00, 0x00, 0x00, 0xD8, 0x4C, /* 0xBC-0xBF */
+	0xB3, 0xB6, 0xB6, 0xAD, 0xDC, 0xA4, 0xDC, 0xA6, /* 0xC0-0xC3 */
+	0xB6, 0xAF, 0xB6, 0xAE, 0xB6, 0xB0, 0xB6, 0xB1, /* 0xC4-0xC7 */
+	0xDC, 0xA5, 0xB9, 0x6E, 0xB9, 0x6F, 0xB9, 0x6D, /* 0xC8-0xCB */
+	0xBB, 0xDB, 0xB9, 0x6C, 0xE0, 0xD5, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0xBB, 0xDC, 0xE8, 0xAC, /* 0xD0-0xD3 */
+	0xEC, 0x50, 0xC0, 0x4A, 0xC1, 0xF6, 0xF1, 0x70, /* 0xD4-0xD7 */
+	0xF1, 0x74, 0xC2, 0xF9, 0xF1, 0x71, 0xC2, 0xFA, /* 0xD8-0xDB */
+	0xC2, 0xF8, 0xF1, 0x75, 0xC2, 0xFB, 0xF1, 0x73, /* 0xDC-0xDF */
+	0x00, 0x00, 0xF3, 0x79, 0xC2, 0xF7, 0xC3, 0xF8, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xF8, 0xCD, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xAB, 0x42, 0xB3, 0xB8, 0xB3, 0xB7, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB6, 0xB2, /* 0xEC-0xEF */
+	0xDC, 0xA8, 0xDC, 0xA7, 0xB6, 0xB3, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0xE0, 0xD9, 0xB9, 0x73, 0xB9, 0x70, /* 0xF4-0xF7 */
+	0xE0, 0xD8, 0xB9, 0x72, 0xE0, 0xD6, 0xB9, 0x71, /* 0xF8-0xFB */
+	0x00, 0x00, 0xE0, 0xD7, 0x00, 0x00, 0xE4, 0xBD, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_97[512] = {
+	0xBB, 0xDD, 0x00, 0x00, 0xE8, 0xAF, 0x00, 0x00, /* 0x00-0x03 */
+	0xBE, 0x5D, 0xE8, 0xAD, 0xBE, 0x5E, 0xBE, 0x5F, /* 0x04-0x07 */
+	0xE8, 0xAE, 0xBE, 0x60, 0x00, 0x00, 0xEC, 0x51, /* 0x08-0x0B */
+	0x00, 0x00, 0xC0, 0x4E, 0xC0, 0x4B, 0xC0, 0x50, /* 0x0C-0x0F */
+	0xEC, 0x53, 0xC0, 0x4C, 0xEC, 0x52, 0xC0, 0x4F, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xC0, 0x4D, 0x00, 0x00, /* 0x14-0x17 */
+	0xEE, 0xF9, 0xEE, 0xFB, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0xC1, 0xF7, 0xEE, 0xFA, 0xC1, 0xF8, 0xEE, 0xF8, /* 0x1C-0x1F */
+	0xEE, 0xF7, 0x00, 0x00, 0xF1, 0x77, 0xF1, 0x76, /* 0x20-0x23 */
+	0xC2, 0xFC, 0xF1, 0x78, 0xF3, 0x7E, 0xC3, 0xFA, /* 0x24-0x27 */
+	0xF3, 0x7D, 0xF3, 0x7A, 0xC3, 0xF9, 0xF3, 0x7B, /* 0x28-0x2B */
+	0xF3, 0x7C, 0x00, 0x00, 0xF5, 0x48, 0xF5, 0x49, /* 0x2C-0x2F */
+	0xC4, 0xC5, 0x00, 0x00, 0xC5, 0x53, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0xF6, 0x6E, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0xC5, 0x51, 0xC5, 0x52, 0xF6, 0x6F, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0xC5, 0xB4, 0xC5, 0xB5, 0xF7, 0x71, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0xC6, 0x45, 0xF8, 0xCF, /* 0x40-0x43 */
+	0xC6, 0x47, 0x00, 0x00, 0xF8, 0xCE, 0xF8, 0xD0, /* 0x44-0x47 */
+	0xC6, 0x46, 0xF9, 0x57, 0x00, 0x00, 0xF9, 0xAD, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0xAB, 0x43, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0xB9, 0x74, 0x00, 0x00, /* 0x54-0x57 */
+	0xE4, 0xBE, 0x00, 0x00, 0xE8, 0xB0, 0xC0, 0x51, /* 0x58-0x5B */
+	0xC0, 0x52, 0x00, 0x00, 0xAB, 0x44, 0x00, 0x00, /* 0x5C-0x5F */
+	0xBE, 0x61, 0xC3, 0xFB, 0xAD, 0xB1, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0xC0, 0x53, 0x00, 0x00, /* 0x64-0x67 */
+	0xC5, 0xE2, 0xAD, 0xB2, 0xD8, 0x4D, 0x00, 0x00, /* 0x68-0x6B */
+	0xDC, 0xA9, 0x00, 0x00, 0xDC, 0xAB, 0x00, 0x00, /* 0x6C-0x6F */
+	0xDC, 0xAA, 0x00, 0x00, 0xE0, 0xDD, 0xE0, 0xDA, /* 0x70-0x73 */
+	0xB9, 0x75, 0x00, 0x00, 0xB9, 0x76, 0xE0, 0xDB, /* 0x74-0x77 */
+	0xE0, 0xDC, 0x00, 0x00, 0xE4, 0xC0, 0xE4, 0xC5, /* 0x78-0x7B */
+	0xBB, 0xDE, 0xE4, 0xBF, 0xE4, 0xC1, 0xE4, 0xC8, /* 0x7C-0x7F */
+	
+	0xE4, 0xC3, 0xE4, 0xC7, 0xE4, 0xC4, 0xE4, 0xC2, /* 0x80-0x83 */
+	0xE4, 0xC6, 0xBB, 0xDF, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0xE8, 0xB3, 0x00, 0x00, 0xE8, 0xB1, 0xBE, 0x63, /* 0x88-0x8B */
+	0x00, 0x00, 0xBE, 0x62, 0xE8, 0xB2, 0xBE, 0x64, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0xEC, 0x56, 0x00, 0x00, 0x00, 0x00, 0xEC, 0x55, /* 0x94-0x97 */
+	0xC0, 0x54, 0xEC, 0x54, 0xEE, 0xFC, 0x00, 0x00, /* 0x98-0x9B */
+	0xEE, 0xFE, 0xEF, 0x41, 0xEF, 0x40, 0x00, 0x00, /* 0x9C-0x9F */
+	0xC1, 0xF9, 0xEE, 0xFD, 0xF1, 0xA1, 0xC2, 0xFD, /* 0xA0-0xA3 */
+	0xF1, 0x7D, 0xF1, 0xA2, 0xC2, 0xFE, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xF1, 0x7B, 0x00, 0x00, 0xF1, 0x7E, 0xF1, 0x7C, /* 0xA8-0xAB */
+	0xF1, 0x79, 0xC3, 0x40, 0xF1, 0x7A, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF3, 0xA1, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0xF3, 0xA3, 0xF3, 0xA2, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xF5, 0x4A, 0x00, 0x00, 0xF5, 0x4B, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF6, 0x70, /* 0xBC-0xBF */
+	0x00, 0x00, 0xC5, 0xB7, 0x00, 0x00, 0xC5, 0xB6, /* 0xC0-0xC3 */
+	0xF8, 0x4F, 0xF8, 0x50, 0xC6, 0x48, 0xF8, 0xD1, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xC6, 0x69, 0x00, 0x00, 0xAD, 0xB3, /* 0xC8-0xCB */
+	0xB6, 0xB4, 0xE4, 0xCA, 0xE4, 0xC9, 0xE8, 0xB5, /* 0xCC-0xCF */
+	0xE8, 0xB4, 0x00, 0x00, 0x00, 0x00, 0xC1, 0xFA, /* 0xD0-0xD3 */
+	0xEF, 0x43, 0xEF, 0x42, 0xF1, 0xA5, 0xF1, 0xA3, /* 0xD4-0xD7 */
+	0xF1, 0xA6, 0xF1, 0xA4, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0xC3, 0xFC, 0xF3, 0xA4, 0xF3, 0xA5, 0xF3, 0xA6, /* 0xDC-0xDF */
+	0x00, 0x00, 0xF6, 0x71, 0x00, 0x00, 0xF7, 0x72, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xF8, 0xD2, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0xAD, 0xB4, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0xEC, 0x57, 0xEF, 0x44, 0x00, 0x00, 0xAD, 0xB5, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0xBB, 0xE0, 0x00, 0x00, /* 0xF4-0xF7 */
+	0xEC, 0x58, 0xC3, 0x41, 0xF1, 0xA7, 0xC3, 0xFD, /* 0xF8-0xFB */
+	0x00, 0x00, 0xF5, 0x4C, 0xF5, 0x4D, 0xC5, 0x54, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_98[512] = {
+	0xF8, 0x51, 0xAD, 0xB6, 0xB3, 0xBB, 0xB3, 0xBC, /* 0x00-0x03 */
+	0xD8, 0x4E, 0xB6, 0xB5, 0xB6, 0xB6, 0xDC, 0xAC, /* 0x04-0x07 */
+	0xB6, 0xB7, 0x00, 0x00, 0xB9, 0x7A, 0x00, 0x00, /* 0x08-0x0B */
+	0xB9, 0x7C, 0xE0, 0xDF, 0xE0, 0xE0, 0xE0, 0xDE, /* 0x0C-0x0F */
+	0xB9, 0x77, 0xB9, 0x78, 0xB9, 0x7B, 0xB9, 0x79, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0xE4, 0xCB, 0xBB, 0xE1, /* 0x14-0x17 */
+	0xBB, 0xE2, 0x00, 0x00, 0x00, 0x00, 0xE8, 0xBC, /* 0x18-0x1B */
+	0xBE, 0x67, 0xE8, 0xB7, 0xE8, 0xB6, 0x00, 0x00, /* 0x1C-0x1F */
+	0xE8, 0xBB, 0xBE, 0x65, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0xC0, 0x5B, 0x00, 0x00, 0xE8, 0xB8, 0xE8, 0xBD, /* 0x24-0x27 */
+	0xE8, 0xBA, 0xE8, 0xB9, 0x00, 0x00, 0xBE, 0x66, /* 0x28-0x2B */
+	0x00, 0x00, 0xC0, 0x59, 0x00, 0x00, 0xEC, 0x5A, /* 0x2C-0x2F */
+	0xC0, 0x55, 0x00, 0x00, 0xEC, 0x5B, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0xEC, 0x59, 0x00, 0x00, 0xC0, 0x58, /* 0x34-0x37 */
+	0xC0, 0x56, 0xC0, 0x5A, 0x00, 0x00, 0xC0, 0x57, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0xEF, 0x45, 0x00, 0x00, 0xEF, 0x4A, /* 0x40-0x43 */
+	0xEF, 0x46, 0xEF, 0x49, 0xC1, 0xFB, 0x00, 0x00, /* 0x44-0x47 */
+	0xED, 0xD4, 0xEF, 0x48, 0xEF, 0x47, 0x00, 0x00, /* 0x48-0x4B */
+	0xC3, 0x44, 0xC3, 0x42, 0xC3, 0x45, 0xC3, 0x43, /* 0x4C-0x4F */
+	0xF1, 0xA8, 0xF1, 0xA9, 0xF1, 0xAA, 0xC3, 0x46, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF3, 0xAA, /* 0x54-0x57 */
+	0xC4, 0x40, 0xF3, 0xA8, 0x00, 0x00, 0xC4, 0x41, /* 0x58-0x5B */
+	0xF3, 0xA7, 0xF3, 0xA9, 0xC3, 0xFE, 0xF5, 0x51, /* 0x5C-0x5F */
+	0xF5, 0x4E, 0x00, 0x00, 0xF5, 0x4F, 0xF5, 0x50, /* 0x60-0x63 */
+	0xF6, 0x72, 0xC5, 0x56, 0x00, 0x00, 0xC5, 0x55, /* 0x64-0x67 */
+	0x00, 0x00, 0xF7, 0x74, 0xF7, 0x73, 0xC5, 0xB8, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC5, 0xE3, /* 0x6C-0x6F */
+	0xC6, 0x49, 0xC6, 0x60, 0xF9, 0x58, 0xF9, 0xAE, /* 0x70-0x73 */
+	0xF9, 0xAF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xAD, 0xB7, 0xDC, 0xAD, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0xE0, 0xE1, 0xE4, 0xCC, 0xE4, 0xCD, 0xBB, 0xE3, /* 0xAC-0xAF */
+	0x00, 0x00, 0xBB, 0xE4, 0xE8, 0xBE, 0xBE, 0x68, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0xC1, 0xFC, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xF1, 0xAB, 0x00, 0x00, 0xC3, 0x47, 0xF3, 0xAD, /* 0xB8-0xBB */
+	0xC4, 0x42, 0xF3, 0xAC, 0xF3, 0xAE, 0xF3, 0xAB, /* 0xBC-0xBF */
+	0xF6, 0x75, 0xF5, 0x52, 0xF5, 0x53, 0x00, 0x00, /* 0xC0-0xC3 */
+	0xC4, 0xC6, 0x00, 0x00, 0xF6, 0x74, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xF6, 0x73, 0x00, 0x00, 0xF7, 0x75, /* 0xC8-0xCB */
+	0xF9, 0xB0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xAD, 0xB8, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xAD, 0xB9, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0xB0, 0xA7, 0xD4, 0x48, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xD8, 0x4F, 0x00, 0x00, 0xB6, 0xB8, /* 0xE4-0xE7 */
+	0x00, 0x00, 0xB6, 0xBB, 0xB6, 0xB9, 0xDC, 0xAE, /* 0xE8-0xEB */
+	0x00, 0x00, 0xB6, 0xBD, 0x00, 0x00, 0xB6, 0xBA, /* 0xEC-0xEF */
+	0x00, 0x00, 0x00, 0x00, 0xB6, 0xBC, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xB9, 0x7E, 0x00, 0x00, 0xE0, 0xE2, 0x00, 0x00, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xE0, 0xE3, 0xE8, 0xC0, 0x00, 0x00, /* 0xF8-0xFB */
+	0xB9, 0x7D, 0xB9, 0xA1, 0xB9, 0xA2, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_99[512] = {
+	0xE4, 0xCF, 0x00, 0x00, 0xE4, 0xCE, 0xBB, 0xE5, /* 0x00-0x03 */
+	0x00, 0x00, 0xBB, 0xE6, 0x00, 0x00, 0xE4, 0xD0, /* 0x04-0x07 */
+	0xE8, 0xBF, 0xBB, 0xE8, 0xBE, 0x69, 0x00, 0x00, /* 0x08-0x0B */
+	0xBB, 0xE7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0xC0, 0x5C, 0xE8, 0xC1, 0xBE, 0x6B, 0xBE, 0x6A, /* 0x10-0x13 */
+	0xE8, 0xC2, 0xE8, 0xC5, 0xE8, 0xC3, 0xE8, 0xC4, /* 0x14-0x17 */
+	0xBE, 0x6C, 0x00, 0x00, 0xC0, 0x61, 0xC0, 0x5F, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0xC0, 0x5E, 0xEC, 0x5D, /* 0x1C-0x1F */
+	0x00, 0x00, 0xC0, 0x60, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0xEC, 0x5C, 0xEF, 0x4B, 0x00, 0x00, 0xEC, 0x5E, /* 0x24-0x27 */
+	0xC0, 0x5D, 0xEC, 0x5F, 0xEF, 0x4E, 0xEF, 0x4C, /* 0x28-0x2B */
+	0xEF, 0x4D, 0xEF, 0x52, 0xC3, 0x4B, 0xEF, 0x51, /* 0x2C-0x2F */
+	0xEF, 0x54, 0xEF, 0x53, 0xEF, 0x50, 0xEF, 0x4F, /* 0x30-0x33 */
+	0x00, 0x00, 0xC1, 0xFD, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xF1, 0xAE, 0x00, 0x00, /* 0x38-0x3B */
+	0xF1, 0xAD, 0xC3, 0x4A, 0xC3, 0x48, 0xC3, 0x49, /* 0x3C-0x3F */
+	0x00, 0x00, 0xF1, 0xAC, 0x00, 0x00, 0xF3, 0xB1, /* 0x40-0x43 */
+	0x00, 0x00, 0xC4, 0x43, 0x00, 0x00, 0xF3, 0xB0, /* 0x44-0x47 */
+	0xF3, 0xAF, 0xC4, 0x44, 0x00, 0x00, 0xF5, 0x58, /* 0x48-0x4B */
+	0xF5, 0x57, 0x00, 0x00, 0xF5, 0x55, 0x00, 0x00, /* 0x4C-0x4F */
+	0xF5, 0x54, 0xC4, 0xC8, 0xC4, 0xC7, 0xF5, 0x59, /* 0x50-0x53 */
+	0xF7, 0x76, 0xC5, 0xB9, 0xF6, 0x77, 0xC5, 0x57, /* 0x54-0x57 */
+	0xF6, 0x76, 0xF5, 0x56, 0x00, 0x00, 0xF7, 0x77, /* 0x58-0x5B */
+	0xC5, 0xE4, 0x00, 0x00, 0xC6, 0x61, 0xF9, 0x59, /* 0x5C-0x5F */
+	0x00, 0x00, 0xF9, 0xB1, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0xAD, 0xBA, 0xD8, 0x50, /* 0x94-0x97 */
+	0xEF, 0x55, 0xAD, 0xBB, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0xE4, 0xD2, 0xE4, 0xD1, 0xEC, 0x60, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0xEF, 0x57, 0x00, 0x00, 0xEF, 0x56, /* 0xA0-0xA3 */
+	0x00, 0x00, 0xC3, 0x4C, 0xF3, 0xB2, 0xF3, 0xB3, /* 0xA4-0xA7 */
+	0xC4, 0xC9, 0x00, 0x00, 0x00, 0x00, 0xF9, 0xB2, /* 0xA8-0xAB */
+	0xB0, 0xA8, 0xB6, 0xBF, 0xB6, 0xBE, 0xE0, 0xE4, /* 0xAC-0xAF */
+	0xE0, 0xE6, 0xB9, 0xA4, 0xE0, 0xE5, 0xB9, 0xA3, /* 0xB0-0xB3 */
+	0xB9, 0xA5, 0xE0, 0xE7, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0xE4, 0xD4, 0xE4, 0xD6, 0xE4, 0xD5, /* 0xB8-0xBB */
+	0x00, 0x00, 0xE4, 0xD8, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0xBB, 0xE9, 0xE4, 0xD7, 0xE4, 0xD3, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xD9, /* 0xC4-0xC7 */
+	0x00, 0x00, 0xE8, 0xCC, 0x00, 0x00, 0xE8, 0xCF, /* 0xC8-0xCB */
+	0xE8, 0xD1, 0xE8, 0xC7, 0xE8, 0xCB, 0xE8, 0xC8, /* 0xCC-0xCF */
+	0xBE, 0x6E, 0xBE, 0x71, 0xBE, 0x73, 0xE8, 0xC9, /* 0xD0-0xD3 */
+	0xE8, 0xCA, 0xBE, 0x72, 0xE8, 0xCD, 0xE8, 0xD0, /* 0xD4-0xD7 */
+	0xE8, 0xCE, 0xBE, 0x74, 0x00, 0x00, 0xBE, 0x70, /* 0xD8-0xDB */
+	0xE8, 0xC6, 0xBE, 0x6D, 0x00, 0x00, 0xBE, 0x6F, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0xC0, 0x63, 0xEC, 0x66, /* 0xE0-0xE3 */
+	0xEC, 0x64, 0xEC, 0x63, 0x00, 0x00, 0xEC, 0x69, /* 0xE4-0xE7 */
+	0x00, 0x00, 0xEC, 0x68, 0xEC, 0x67, 0x00, 0x00, /* 0xE8-0xEB */
+	0xEC, 0x62, 0xC0, 0x62, 0xEC, 0x61, 0x00, 0x00, /* 0xEC-0xEF */
+	0xEC, 0x65, 0xC0, 0x64, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0xEF, 0x5A, 0x00, 0x00, 0xEF, 0x5E, 0xEF, 0x5B, /* 0xF4-0xF7 */
+	0xEF, 0x5D, 0xEF, 0x5C, 0xEF, 0x59, 0xEF, 0x5F, /* 0xF8-0xFB */
+	0xEF, 0x62, 0xEF, 0x60, 0xEF, 0x61, 0xC2, 0x40, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_9A[512] = {
+	0x00, 0x00, 0xC1, 0xFE, 0xEF, 0x58, 0xEF, 0x63, /* 0x00-0x03 */
+	0xF1, 0xB3, 0xF1, 0xB6, 0xF1, 0xB8, 0xF1, 0xB7, /* 0x04-0x07 */
+	0x00, 0x00, 0xF1, 0xB1, 0xF1, 0xB5, 0xF1, 0xB0, /* 0x08-0x0B */
+	0x00, 0x00, 0xF1, 0xB2, 0xC3, 0x4D, 0xF1, 0xAF, /* 0x0C-0x0F */
+	0x00, 0x00, 0xF1, 0xB4, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0xF3, 0xC0, 0xF3, 0xB5, 0xC4, 0x45, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0xC4, 0x46, 0xF3, 0xB4, 0xF3, 0xB9, /* 0x18-0x1B */
+	0xF3, 0xBF, 0xF3, 0xB7, 0xF3, 0xBE, 0x00, 0x00, /* 0x1C-0x1F */
+	0xF3, 0xBB, 0x00, 0x00, 0xF3, 0xBA, 0xF3, 0xBD, /* 0x20-0x23 */
+	0xF3, 0xB8, 0xF3, 0xB6, 0x00, 0x00, 0xF3, 0xBC, /* 0x24-0x27 */
+	0x00, 0x00, 0xF5, 0x60, 0xF5, 0x5E, 0xC4, 0xCA, /* 0x28-0x2B */
+	0xF5, 0x5D, 0xF5, 0x63, 0xF5, 0x61, 0x00, 0x00, /* 0x2C-0x2F */
+	0xC4, 0xCB, 0xF5, 0x5C, 0xF5, 0x5A, 0x00, 0x00, /* 0x30-0x33 */
+	0xF5, 0x5B, 0xC4, 0xCD, 0xF5, 0x5F, 0xC4, 0xCC, /* 0x34-0x37 */
+	0xF5, 0x62, 0xF6, 0x78, 0xF6, 0x7E, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0xF6, 0x79, 0xC5, 0x5B, 0xF6, 0xA1, /* 0x3C-0x3F */
+	0xC5, 0x5A, 0xF6, 0x7D, 0xF6, 0x7C, 0xC5, 0x59, /* 0x40-0x43 */
+	0xF6, 0x7B, 0xC5, 0x58, 0xF6, 0x7A, 0x00, 0x00, /* 0x44-0x47 */
+	0xF7, 0x7D, 0xF7, 0xA1, 0xF7, 0x7E, 0x00, 0x00, /* 0x48-0x4B */
+	0xF7, 0x7B, 0xC5, 0xBB, 0xF7, 0x78, 0xF7, 0x7C, /* 0x4C-0x4F */
+	0xF7, 0xA3, 0x00, 0x00, 0xF7, 0xA2, 0xF7, 0x79, /* 0x50-0x53 */
+	0xF7, 0x7A, 0xC5, 0xBA, 0xF8, 0x52, 0xC5, 0xE7, /* 0x54-0x57 */
+	0x00, 0x00, 0xF8, 0x53, 0xC5, 0xE5, 0xC5, 0xE6, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0xF8, 0xD3, 0xC6, 0x4A, /* 0x5C-0x5F */
+	0xF9, 0x76, 0x00, 0x00, 0xC6, 0x6A, 0x00, 0x00, /* 0x60-0x63 */
+	0xF9, 0xB3, 0xC6, 0x6B, 0xF9, 0xB4, 0xF9, 0xB5, /* 0x64-0x67 */
+	0xF9, 0xC3, 0xF9, 0xC2, 0xC6, 0x7A, 0xF9, 0xCD, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xB0, 0xA9, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xE9, /* 0xA8-0xAB */
+	0x00, 0x00, 0xE0, 0xE8, 0x00, 0x00, 0xBB, 0xEA, /* 0xAC-0xAF */
+	0xBB, 0xEB, 0xE4, 0xDA, 0x00, 0x00, 0xE8, 0xD2, /* 0xB0-0xB3 */
+	0xEC, 0x6C, 0x00, 0x00, 0x00, 0x00, 0xBE, 0x75, /* 0xB4-0xB7 */
+	0xC0, 0x65, 0xEC, 0x6A, 0x00, 0x00, 0xEC, 0x6D, /* 0xB8-0xBB */
+	0xC0, 0x66, 0x00, 0x00, 0xEF, 0x64, 0xEC, 0x6B, /* 0xBC-0xBF */
+	0xF1, 0xB9, 0xC3, 0x4E, 0xF3, 0xC1, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0xF5, 0x66, 0xF5, 0x64, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0xF5, 0x65, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0xF6, 0xA2, 0x00, 0x00, 0xC5, 0x5C, /* 0xCC-0xCF */
+	0xF7, 0xA4, 0xC5, 0xEA, 0xC5, 0xBC, 0xC5, 0xE8, /* 0xD0-0xD3 */
+	0xC5, 0xE9, 0xF8, 0xD4, 0xC6, 0x62, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xB0, 0xAA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0xF1, 0xBA, 0x00, 0x00, 0x00, 0x00, 0xD4, 0x49, /* 0xDC-0xDF */
+	0x00, 0x00, 0xB9, 0xA6, 0x00, 0x00, 0xE4, 0xDB, /* 0xE0-0xE3 */
+	0x00, 0x00, 0x00, 0x00, 0xBB, 0xEC, 0xE4, 0xDC, /* 0xE4-0xE7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE8, 0xD4, /* 0xE8-0xEB */
+	0xE8, 0xD3, 0xC0, 0x68, 0xBE, 0x76, 0xBE, 0x77, /* 0xEC-0xEF */
+	0x00, 0x00, 0xE8, 0xD7, 0xE8, 0xD6, 0xE8, 0xD5, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0xEC, 0x6E, 0xEC, 0x71, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xEC, 0x70, 0xEC, 0x6F, 0xC0, 0x67, /* 0xF8-0xFB */
+	0xEF, 0x68, 0xEF, 0x66, 0xEF, 0x65, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_9B[512] = {
+	0x00, 0x00, 0xEF, 0x67, 0x00, 0x00, 0xC3, 0x4F, /* 0x00-0x03 */
+	0xF1, 0xBC, 0xF1, 0xBD, 0xC3, 0x50, 0x00, 0x00, /* 0x04-0x07 */
+	0xF1, 0xBB, 0x00, 0x00, 0xF3, 0xC3, 0xF3, 0xC2, /* 0x08-0x0B */
+	0xF3, 0xC5, 0xC4, 0x47, 0xF3, 0xC4, 0x00, 0x00, /* 0x0C-0x0F */
+	0xF5, 0x67, 0xF5, 0x69, 0xF5, 0x68, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0xF6, 0xA3, 0xF6, 0xA6, 0xF6, 0xA4, /* 0x14-0x17 */
+	0xF6, 0xA5, 0xF7, 0xA5, 0xC5, 0xBD, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0xF8, 0x54, 0xF8, 0x55, /* 0x1C-0x1F */
+	0xF8, 0x56, 0x00, 0x00, 0xC6, 0x4B, 0xC6, 0x63, /* 0x20-0x23 */
+	0xF9, 0xB6, 0xB0, 0xAB, 0x00, 0x00, 0xBE, 0x78, /* 0x24-0x27 */
+	0xC0, 0x69, 0xF1, 0xBE, 0x00, 0x00, 0xF7, 0xA6, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0xF9, 0xC4, 0xD4, 0x4A, /* 0x2C-0x2F */
+	0x00, 0x00, 0xC6, 0x7B, 0xB0, 0xAC, 0xEC, 0x72, /* 0x30-0x33 */
+	0x00, 0x00, 0xF1, 0xBF, 0x00, 0x00, 0xF3, 0xC6, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0xF6, 0xA7, 0xF7, 0xA7, /* 0x38-0x3B */
+	0xB0, 0xAD, 0x00, 0x00, 0xE4, 0xDD, 0xE4, 0xDE, /* 0x3C-0x3F */
+	0x00, 0x00, 0xBB, 0xED, 0xBB, 0xEE, 0xE8, 0xD9, /* 0x40-0x43 */
+	0xBE, 0x7A, 0xBE, 0x79, 0xE8, 0xD8, 0x00, 0x00, /* 0x44-0x47 */
+	0xEF, 0x69, 0x00, 0x00, 0xF1, 0xC0, 0xF1, 0xC2, /* 0x48-0x4B */
+	0xF1, 0xC1, 0xC3, 0x53, 0xC3, 0x52, 0xC3, 0x51, /* 0x4C-0x4F */
+	0x00, 0x00, 0xC5, 0x5E, 0xF6, 0xA8, 0x00, 0x00, /* 0x50-0x53 */
+	0xC5, 0x5D, 0xF7, 0xA9, 0xF7, 0xA8, 0x00, 0x00, /* 0x54-0x57 */
+	0xC6, 0x4C, 0xF8, 0xD5, 0xB3, 0xBD, 0xE0, 0xEA, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0xE1, /* 0x5C-0x5F */
+	0xE4, 0xDF, 0xE4, 0xE0, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0xE8, 0xE2, 0x00, 0x00, 0xE8, 0xDD, 0xE8, 0xDA, /* 0x64-0x67 */
+	0xE8, 0xE1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0xE8, 0xE3, 0x00, 0x00, 0x00, 0x00, 0xBE, 0x7C, /* 0x6C-0x6F */
+	0xE8, 0xE0, 0xE8, 0xDC, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0xE8, 0xDB, 0xE8, 0xDF, 0xE8, 0xDE, 0xBE, 0x7B, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0xEC, 0x7D, 0xEC, 0x78, /* 0x78-0x7B */
+	0xEC, 0x76, 0xEC, 0xA1, 0xEC, 0x77, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0xEC, 0x73, 0x00, 0x00, 0xEC, 0x79, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0xEC, 0x74, 0xEF, 0x72, 0xEC, 0x75, /* 0x84-0x87 */
+	0xEC, 0xA2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0xEC, 0x7C, 0xC0, 0x6A, 0xEC, 0x7B, 0xEC, 0x7A, /* 0x90-0x93 */
+	0x00, 0x00, 0xEC, 0x7E, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0xEF, 0x6A, 0xEF, 0x6D, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0xEF, 0x6C, 0x00, 0x00, /* 0x9C-0x9F */
+	0xEF, 0x74, 0xEF, 0x6F, 0xEF, 0x73, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xEF, 0x71, 0xEF, 0x70, 0xEF, 0x6E, 0x00, 0x00, /* 0xA4-0xA7 */
+	0xEF, 0x6B, 0x00, 0x00, 0xC2, 0x43, 0xC2, 0x42, /* 0xA8-0xAB */
+	0x00, 0x00, 0xC2, 0x44, 0xC2, 0x41, 0xEF, 0x75, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0xF1, 0xC8, 0xF1, 0xCB, 0x00, 0x00, /* 0xB4-0xB7 */
+	0xF1, 0xC9, 0xF1, 0xCD, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0xF1, 0xCE, 0x00, 0x00, 0xF1, 0xC6, /* 0xBC-0xBF */
+	0xC3, 0x58, 0xF1, 0xC7, 0x00, 0x00, 0xF1, 0xC5, /* 0xC0-0xC3 */
+	0xF1, 0xCC, 0x00, 0x00, 0xF1, 0xC4, 0xF1, 0xC3, /* 0xC4-0xC7 */
+	0xC3, 0x57, 0xC3, 0x55, 0xC3, 0x54, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF1, 0xCA, /* 0xD0-0xD3 */
+	0xF3, 0xCF, 0xF3, 0xD5, 0xC4, 0x4A, 0xF3, 0xD0, /* 0xD4-0xD7 */
+	0x00, 0x00, 0xF3, 0xD3, 0xF3, 0xD7, 0xC4, 0x4B, /* 0xD8-0xDB */
+	0xF3, 0xD2, 0x00, 0x00, 0xF3, 0xCA, 0x00, 0x00, /* 0xDC-0xDF */
+	0xF3, 0xC9, 0xF3, 0xD6, 0xF3, 0xCD, 0x00, 0x00, /* 0xE0-0xE3 */
+	0xF3, 0xCB, 0xF3, 0xD4, 0xF3, 0xCC, 0xC4, 0x49, /* 0xE4-0xE7 */
+	0xC4, 0x48, 0x00, 0x00, 0xF3, 0xC7, 0xF3, 0xC8, /* 0xE8-0xEB */
+	0xF3, 0xD1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0xF3, 0xCE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF5, 0x6C, /* 0xF4-0xF7 */
+	0xF5, 0x6F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF8-0xFB */
+	0x00, 0x00, 0xC3, 0x56, 0x00, 0x00, 0x00, 0x00, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_9C[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0xF5, 0x6D, 0xF5, 0x73, 0xF5, 0x71, /* 0x04-0x07 */
+	0xF5, 0x6B, 0xF5, 0x76, 0x00, 0x00, 0xF5, 0x6A, /* 0x08-0x0B */
+	0x00, 0x00, 0xC4, 0xCF, 0xF5, 0x72, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0xF5, 0x6E, 0xC4, 0xCE, /* 0x10-0x13 */
+	0xF5, 0x75, 0x00, 0x00, 0x00, 0x00, 0xF5, 0x74, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0xF6, 0xAB, 0xF6, 0xAA, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0xF6, 0xB1, 0x00, 0x00, 0xF6, 0xAD, /* 0x20-0x23 */
+	0xF6, 0xB0, 0xC5, 0x60, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0xF6, 0xAE, 0xF6, 0xAF, 0x00, 0x00, 0xF6, 0xA9, /* 0x28-0x2B */
+	0xF6, 0xAC, 0xC5, 0x5F, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0xC5, 0xBF, 0xF7, 0xB4, 0xF7, 0xAF, /* 0x30-0x33 */
+	0xF7, 0xB3, 0x00, 0x00, 0xF7, 0xB6, 0xF7, 0xB2, /* 0x34-0x37 */
+	0x00, 0x00, 0xF7, 0xAE, 0x00, 0x00, 0xC5, 0xC1, /* 0x38-0x3B */
+	0xF7, 0xB1, 0xF7, 0xB5, 0xC5, 0xC0, 0xF7, 0xAC, /* 0x3C-0x3F */
+	0xF5, 0x70, 0xF7, 0xB0, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0xF7, 0xAD, 0x00, 0x00, 0xF7, 0xAA, 0x00, 0x00, /* 0x44-0x47 */
+	0xF7, 0xAB, 0xC5, 0xBE, 0xF8, 0x5A, 0xF8, 0x5C, /* 0x48-0x4B */
+	0xF8, 0x5F, 0xF8, 0x5B, 0xF8, 0x60, 0x00, 0x00, /* 0x4C-0x4F */
+	0xF8, 0x59, 0x00, 0x00, 0xF8, 0x57, 0x00, 0x00, /* 0x50-0x53 */
+	0xC5, 0xEB, 0xF8, 0x5D, 0xC5, 0xED, 0xC5, 0xEC, /* 0x54-0x57 */
+	0xF8, 0x58, 0xF8, 0x5E, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0xF8, 0xDA, 0xC6, 0x4D, /* 0x5C-0x5F */
+	0xF8, 0xDB, 0x00, 0x00, 0xF8, 0xD9, 0xF8, 0xD6, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0xF8, 0xD8, 0xF8, 0xD7, /* 0x64-0x67 */
+	0xF9, 0x5A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0xF9, 0x5C, 0xF9, 0x5B, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0xF9, 0x79, 0x00, 0x00, 0xF9, 0x78, /* 0x70-0x73 */
+	0xF9, 0x77, 0xF9, 0x7A, 0x00, 0x00, 0xC6, 0x73, /* 0x74-0x77 */
+	0xC6, 0x74, 0xF9, 0xCA, 0xF9, 0xCE, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xB3, 0xBE, 0xDC, 0xAF, 0xE0, 0xED, /* 0xE4-0xE7 */
+	0x00, 0x00, 0xB9, 0xA7, 0xE0, 0xEB, 0x00, 0x00, /* 0xE8-0xEB */
+	0x00, 0x00, 0xE0, 0xEC, 0x00, 0x00, 0x00, 0x00, /* 0xEC-0xEF */
+	0x00, 0x00, 0xE4, 0xE2, 0xE4, 0xE3, 0xBB, 0xF1, /* 0xF0-0xF3 */
+	0xBB, 0xEF, 0xE4, 0xE4, 0xBB, 0xF0, 0xE8, 0xE8, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xE8, 0xEB, 0xE8, 0xE5, 0xE8, 0xEC, /* 0xF8-0xFB */
+	0xE8, 0xE4, 0xE8, 0xE6, 0x00, 0x00, 0xE8, 0xE7, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_9D[512] = {
+	0xE8, 0xEA, 0x00, 0x00, 0x00, 0x00, 0xBE, 0xA1, /* 0x00-0x03 */
+	0xE8, 0xEF, 0xE8, 0xEE, 0xBE, 0x7D, 0xE8, 0xE9, /* 0x04-0x07 */
+	0xE8, 0xED, 0xBE, 0x7E, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0xEC, 0xAC, 0x00, 0x00, 0xC0, 0x6F, 0x00, 0x00, /* 0x10-0x13 */
+	0xEC, 0xA7, 0xC0, 0x6B, 0x00, 0x00, 0xEC, 0xA4, /* 0x14-0x17 */
+	0xEC, 0xAA, 0xEC, 0xAD, 0x00, 0x00, 0xC0, 0x70, /* 0x18-0x1B */
+	0x00, 0x00, 0xEC, 0xA9, 0xEC, 0xA6, 0xEC, 0xAE, /* 0x1C-0x1F */
+	0xEC, 0xA5, 0x00, 0x00, 0xEC, 0xAB, 0xC0, 0x6C, /* 0x20-0x23 */
+	0x00, 0x00, 0xEC, 0xA3, 0xC0, 0x6D, 0x00, 0x00, /* 0x24-0x27 */
+	0xC0, 0x6E, 0xEC, 0xA8, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0xEF, 0xA9, 0xEF, 0x7A, 0xEF, 0x7B, /* 0x2C-0x2F */
+	0xEF, 0x7E, 0xEF, 0x7C, 0x00, 0x00, 0xEF, 0x76, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0xEF, 0x79, 0xEF, 0xA5, /* 0x34-0x37 */
+	0xEF, 0x7D, 0x00, 0x00, 0x00, 0x00, 0xC2, 0x45, /* 0x38-0x3B */
+	0x00, 0x00, 0xEF, 0xA7, 0xEF, 0xA4, 0xC2, 0x46, /* 0x3C-0x3F */
+	0xEF, 0xA6, 0xEF, 0x77, 0xEF, 0xA2, 0xEF, 0xA3, /* 0x40-0x43 */
+	0x00, 0x00, 0xEF, 0xA1, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0xF1, 0xD2, 0xF1, 0xD4, /* 0x48-0x4B */
+	0xF1, 0xD7, 0x00, 0x00, 0x00, 0x00, 0xF1, 0xD1, /* 0x4C-0x4F */
+	0x00, 0x00, 0xC3, 0x59, 0xF1, 0xD9, 0xF1, 0xD0, /* 0x50-0x53 */
+	0xF1, 0xDA, 0x00, 0x00, 0xF1, 0xD6, 0xF1, 0xD8, /* 0x54-0x57 */
+	0xF1, 0xDC, 0xF1, 0xD5, 0xF1, 0xDD, 0xF1, 0xD3, /* 0x58-0x5B */
+	0xF1, 0xCF, 0xC3, 0x5A, 0x00, 0x00, 0xF1, 0xDB, /* 0x5C-0x5F */
+	0xC3, 0x5B, 0xC4, 0x4D, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEF, 0x78, /* 0x64-0x67 */
+	0xF3, 0xF1, 0xF3, 0xE8, 0xC4, 0x4F, 0xF3, 0xE4, /* 0x68-0x6B */
+	0xC4, 0x50, 0x00, 0x00, 0x00, 0x00, 0xF3, 0xED, /* 0x6C-0x6F */
+	0xF3, 0xE7, 0xF3, 0xDD, 0xC4, 0x4E, 0xF3, 0xEA, /* 0x70-0x73 */
+	0xF3, 0xE5, 0xF3, 0xE6, 0x00, 0x00, 0xF3, 0xD8, /* 0x74-0x77 */
+	0xF3, 0xDF, 0xF3, 0xEE, 0x00, 0x00, 0xF3, 0xEB, /* 0x78-0x7B */
+	0x00, 0x00, 0xF3, 0xE3, 0x00, 0x00, 0xF3, 0xEF, /* 0x7C-0x7F */
+	
+	0xF3, 0xDE, 0xF3, 0xD9, 0xF3, 0xEC, 0x00, 0x00, /* 0x80-0x83 */
+	0xF3, 0xDB, 0xF3, 0xE9, 0xF3, 0xE0, 0xF3, 0xF0, /* 0x84-0x87 */
+	0xF3, 0xDC, 0xC4, 0x4C, 0xF3, 0xDA, 0xF3, 0xE1, /* 0x88-0x8B */
+	0xF3, 0xE2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0xF5, 0x7D, 0x00, 0x00, 0xF5, 0x7B, 0x00, 0x00, /* 0x90-0x93 */
+	0xF5, 0xA2, 0x00, 0x00, 0xF5, 0xAE, 0xF5, 0xA5, /* 0x94-0x97 */
+	0xF5, 0x7C, 0xF5, 0x78, 0xF5, 0xA7, 0xF5, 0x7E, /* 0x98-0x9B */
+	0xF5, 0xA3, 0xF5, 0x7A, 0xF5, 0xAA, 0xF5, 0x77, /* 0x9C-0x9F */
+	0xF5, 0xA1, 0xF5, 0xA6, 0xF5, 0xA8, 0xF5, 0xAB, /* 0xA0-0xA3 */
+	0xF5, 0x79, 0x00, 0x00, 0xF5, 0xAF, 0xF5, 0xB0, /* 0xA4-0xA7 */
+	0xF5, 0xA9, 0xF5, 0xAD, 0xF5, 0xA4, 0x00, 0x00, /* 0xA8-0xAB */
+	0xF6, 0xC1, 0xF6, 0xC4, 0x00, 0x00, 0xC5, 0x61, /* 0xAC-0xAF */
+	0x00, 0x00, 0xF6, 0xC3, 0xF6, 0xC8, 0xF6, 0xC6, /* 0xB0-0xB3 */
+	0xC5, 0x62, 0xF6, 0xBD, 0xF6, 0xB3, 0xF6, 0xB2, /* 0xB4-0xB7 */
+	0xC5, 0x64, 0xF6, 0xBF, 0xF6, 0xC0, 0xF6, 0xBC, /* 0xB8-0xBB */
+	0xF6, 0xB4, 0x00, 0x00, 0xF6, 0xB9, 0xF5, 0xAC, /* 0xBC-0xBF */
+	0x00, 0x00, 0xF6, 0xB5, 0xC5, 0x63, 0xF6, 0xBB, /* 0xC0-0xC3 */
+	0x00, 0x00, 0xF6, 0xBA, 0x00, 0x00, 0xF6, 0xB6, /* 0xC4-0xC7 */
+	0xF6, 0xC2, 0x00, 0x00, 0xF6, 0xB7, 0xF7, 0xBB, /* 0xC8-0xCB */
+	0xF6, 0xC5, 0xF6, 0xC7, 0xF6, 0xBE, 0xF6, 0xB8, /* 0xCC-0xCF */
+	0xF7, 0xBC, 0xF7, 0xBE, 0xF7, 0xB8, 0xC5, 0xC2, /* 0xD0-0xD3 */
+	0x00, 0x00, 0xF7, 0xC5, 0xF7, 0xC3, 0xC5, 0xC3, /* 0xD4-0xD7 */
+	0xF7, 0xC2, 0xF7, 0xC1, 0xF7, 0xBA, 0xF7, 0xB7, /* 0xD8-0xDB */
+	0xF7, 0xBD, 0xF7, 0xC6, 0xF7, 0xB9, 0xF7, 0xBF, /* 0xDC-0xDF */
+	0x00, 0x00, 0xF8, 0x69, 0xF8, 0x6E, 0xF8, 0x64, /* 0xE0-0xE3 */
+	0xF8, 0x67, 0xC5, 0xEE, 0xF8, 0x6B, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xF8, 0x72, 0xF7, 0xC0, 0x00, 0x00, 0xF8, 0x65, /* 0xE8-0xEB */
+	0xF8, 0x6F, 0xF8, 0x73, 0xF8, 0x6A, 0xF8, 0x63, /* 0xEC-0xEF */
+	0xF8, 0x6D, 0x00, 0x00, 0xF8, 0x6C, 0xF8, 0x71, /* 0xF0-0xF3 */
+	0xF8, 0x70, 0xF7, 0xC4, 0xF8, 0x68, 0xF8, 0x62, /* 0xF4-0xF7 */
+	0xF8, 0x66, 0xC6, 0x4E, 0xC6, 0x4F, 0xF8, 0x61, /* 0xF8-0xFB */
+	0x00, 0x00, 0xF8, 0xE6, 0xF8, 0xDD, 0xF8, 0xE5, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_9E[512] = {
+	0xF8, 0xE2, 0xF8, 0xE3, 0xF8, 0xDC, 0xF8, 0xDF, /* 0x00-0x03 */
+	0xF8, 0xE7, 0xF8, 0xE1, 0xF8, 0xE0, 0xF8, 0xDE, /* 0x04-0x07 */
+	0x00, 0x00, 0xF8, 0xE4, 0x00, 0x00, 0xF9, 0x5D, /* 0x08-0x0B */
+	0x00, 0x00, 0xF9, 0x5E, 0x00, 0x00, 0xF9, 0x60, /* 0x0C-0x0F */
+	0xF9, 0x5F, 0xF9, 0x62, 0xF9, 0x61, 0xF9, 0x7C, /* 0x10-0x13 */
+	0xF9, 0x7B, 0xF9, 0xB7, 0x00, 0x00, 0xF9, 0xB8, /* 0x14-0x17 */
+	0x00, 0x00, 0xF9, 0xC5, 0xC6, 0x78, 0xC6, 0x7C, /* 0x18-0x1B */
+	0x00, 0x00, 0xF9, 0xCF, 0xC6, 0x7D, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x33 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x34-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x3C-0x3F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x53 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x54-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0xB3, 0xBF, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0xC4, 0xD0, 0xF6, 0xC9, 0x00, 0x00, /* 0x78-0x7B */
+	0xC6, 0x50, 0xC6, 0x51, 0x00, 0x00, 0xB3, 0xC0, /* 0x7C-0x7F */
+	
+	0xE0, 0xEE, 0x00, 0x00, 0xB9, 0xA8, 0xE8, 0xF0, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0xEC, 0xB0, 0xEC, 0xB1, /* 0x84-0x87 */
+	0xEC, 0xAF, 0xEF, 0xAB, 0xEF, 0xAA, 0xC2, 0x47, /* 0x88-0x8B */
+	0xF1, 0xDF, 0xEF, 0xAC, 0xF1, 0xDE, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0xF3, 0xF3, 0xC4, 0x51, 0xC4, 0x53, /* 0x90-0x93 */
+	0xF3, 0xF2, 0x00, 0x00, 0x00, 0x00, 0xC4, 0x52, /* 0x94-0x97 */
+	0x00, 0x00, 0xF5, 0xB1, 0xF5, 0xB3, 0xF5, 0xB2, /* 0x98-0x9B */
+	0xF6, 0xCA, 0xC5, 0x65, 0x00, 0x00, 0xC5, 0xEF, /* 0x9C-0x9F */
+	0xF8, 0xE8, 0xF9, 0x63, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xF9, 0xD2, 0xB3, 0xC1, 0x00, 0x00, 0xE4, 0xE5, /* 0xA4-0xA7 */
+	0x00, 0x00, 0xBE, 0xA2, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0xEC, 0xB3, 0xEC, 0xB2, 0x00, 0x00, /* 0xAC-0xAF */
+	0xEF, 0xAD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0xC4, 0x54, 0xC4, 0xD1, 0xF7, 0xC7, 0xF9, 0xCB, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB3, 0xC2, /* 0xB8-0xBB */
+	0xBB, 0xF2, 0x00, 0x00, 0xBE, 0xA3, 0x00, 0x00, /* 0xBC-0xBF */
+	0xF3, 0xF4, 0x00, 0x00, 0xF8, 0x74, 0xB6, 0xC0, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0xEF, 0xAE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0xC6, 0x64, 0xB6, 0xC1, 0xBE, 0xA4, 0xC2, 0x48, /* 0xCC-0xCF */
+	0xF8, 0x75, 0xB6, 0xC2, 0x00, 0x00, 0xE8, 0xF1, /* 0xD0-0xD3 */
+	0xC0, 0x72, 0xEC, 0xB4, 0xEC, 0xB5, 0x00, 0x00, /* 0xD4-0xD7 */
+	0xC0, 0x71, 0x00, 0x00, 0xEF, 0xAF, 0xC2, 0x4C, /* 0xD8-0xDB */
+	0xC2, 0x4A, 0xC2, 0x4B, 0xC2, 0x49, 0xF1, 0xE0, /* 0xDC-0xDF */
+	0xC3, 0x5C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE3 */
+	0xF5, 0xB5, 0xF5, 0xB4, 0xF5, 0xB7, 0xF5, 0xB6, /* 0xE4-0xE7 */
+	0xC4, 0xD2, 0x00, 0x00, 0x00, 0x00, 0xF6, 0xCB, /* 0xE8-0xEB */
+	0x00, 0x00, 0xF6, 0xCD, 0xF6, 0xCC, 0xC5, 0x66, /* 0xEC-0xEF */
+	0xF7, 0xC8, 0x00, 0x00, 0xF8, 0x76, 0xF8, 0x77, /* 0xF0-0xF3 */
+	0xC5, 0xF0, 0xF9, 0x64, 0xF9, 0x7D, 0xC6, 0x75, /* 0xF4-0xF7 */
+	0x00, 0x00, 0xDC, 0xB0, 0xEC, 0xB6, 0xEF, 0xB0, /* 0xF8-0xFB */
+	0xF3, 0xF5, 0xE0, 0xEF, 0x00, 0x00, 0xEF, 0xB1, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_9F[512] = {
+	0xF1, 0xE2, 0xF1, 0xE1, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0xF8, 0x78, 0xC6, 0x52, /* 0x04-0x07 */
+	0x00, 0x00, 0xF9, 0x65, 0xF9, 0x7E, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0xB9, 0xA9, 0xE8, 0xF2, /* 0x0C-0x0F */
+	0xE8, 0xF3, 0x00, 0x00, 0xEC, 0xB7, 0xB9, 0xAA, /* 0x10-0x13 */
+	0x00, 0x00, 0xC3, 0x5D, 0xF1, 0xE3, 0x00, 0x00, /* 0x14-0x17 */
+	0xF6, 0xCF, 0xC5, 0x67, 0xF6, 0xD0, 0xF6, 0xCE, /* 0x18-0x1B */
+	0xF8, 0x79, 0x00, 0x00, 0xF8, 0xE9, 0x00, 0x00, /* 0x1C-0x1F */
+	0xB9, 0xAB, 0x00, 0x00, 0xEF, 0xB4, 0xEF, 0xB3, /* 0x20-0x23 */
+	0xEF, 0xB2, 0xF1, 0xE4, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0xF1, 0xE8, 0xF1, 0xE7, 0xF1, 0xE6, 0xF1, 0xE5, /* 0x28-0x2B */
+	0xC3, 0x5E, 0xF3, 0xF6, 0xF5, 0xB9, 0xC4, 0xD3, /* 0x2C-0x2F */
+	0xF5, 0xB8, 0xF6, 0xD1, 0xF7, 0xCB, 0xF7, 0xCA, /* 0x30-0x33 */
+	0xC5, 0xC4, 0xF7, 0xC9, 0xF8, 0x7C, 0xF8, 0x7B, /* 0x34-0x37 */
+	0xF8, 0x7A, 0x00, 0x00, 0x00, 0x00, 0xBB, 0xF3, /* 0x38-0x3B */
+	0x00, 0x00, 0xEC, 0xB8, 0xC2, 0x4D, 0x00, 0x00, /* 0x3C-0x3F */
+	0xF3, 0xF7, 0xF3, 0xF8, 0xF7, 0xCC, 0xF8, 0x7D, /* 0x40-0x43 */
+	0x00, 0x00, 0x00, 0x00, 0xF8, 0xEA, 0xF9, 0x66, /* 0x44-0x47 */
+	0xF9, 0xB9, 0xF9, 0xD4, 0xBB, 0xF4, 0xC2, 0x4E, /* 0x48-0x4B */
+	0xF1, 0xE9, 0xF3, 0xF9, 0xF6, 0xD2, 0xF8, 0x7E, /* 0x4C-0x4F */
+	0x00, 0x00, 0x00, 0x00, 0xBE, 0xA6, 0x00, 0x00, /* 0x50-0x53 */
+	0xEF, 0xB5, 0xF1, 0xEA, 0xF3, 0xFA, 0xF3, 0xFB, /* 0x54-0x57 */
+	0xF3, 0xFC, 0xF5, 0xBE, 0x00, 0x00, 0xF5, 0xBA, /* 0x58-0x5B */
+	0xC5, 0x68, 0xF5, 0xBD, 0xF5, 0xBC, 0xC4, 0xD4, /* 0x5C-0x5F */
+	0xF5, 0xBB, 0xC4, 0xD6, 0x00, 0x00, 0xC4, 0xD5, /* 0x60-0x63 */
+	0xF6, 0xD4, 0xF6, 0xD3, 0xC5, 0x69, 0xC5, 0x6A, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0xC5, 0xC6, 0xF7, 0xCD, /* 0x68-0x6B */
+	0xC5, 0xC5, 0x00, 0x00, 0xF8, 0xA3, 0xF8, 0xA4, /* 0x6C-0x6F */
+	0xF8, 0xA2, 0xF8, 0xA1, 0xC6, 0x54, 0x00, 0x00, /* 0x70-0x73 */
+	0xF8, 0xEB, 0xF8, 0xEC, 0xF8, 0xED, 0xC6, 0x53, /* 0x74-0x77 */
+	0xF9, 0x67, 0xF9, 0x6A, 0xF9, 0x69, 0xF9, 0x68, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0xF9, 0xD3, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0xC0, 0x73, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0xC3, 0x65, 0xF5, 0xBF, 0xF6, 0xD5, 0x00, 0x00, /* 0x90-0x93 */
+	0xC5, 0xC7, 0xF7, 0xCE, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0xF9, 0xD5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0xC0, 0x74, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0xEF, 0xB6, 0x00, 0x00, 0xF7, 0xCF, 0x00, 0x00, /* 0xA0-0xA3 */
+	0xF9, 0xA1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+};
+
+static unsigned char u2c_DC[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+};
+
+static unsigned char u2c_F9[512] = {
+	0xB0, 0x5A, 0xA7, 0xF3, 0xA8, 0xAE, 0xB8, 0xEB, /* 0x00-0x03 */
+	0xB7, 0xC6, 0xA6, 0xEA, 0xA5, 0x79, 0xC0, 0x74, /* 0x04-0x07 */
+	0xC0, 0x74, 0xAB, 0xB4, 0xAA, 0xF7, 0xB3, 0xE2, /* 0x08-0x0B */
+	0xA9, 0x60, 0xC3, 0x69, 0xC4, 0xEE, 0xC3, 0xB9, /* 0x0C-0x0F */
+	0xC5, 0xDA, 0xC1, 0xB3, 0xBB, 0x72, 0xC5, 0xDE, /* 0x10-0x13 */
+	0xBC, 0xD6, 0xAC, 0xA5, 0xAF, 0x4F, 0xAF, 0x5F, /* 0x14-0x17 */
+	0xB8, 0xA8, 0xB9, 0x54, 0xC0, 0x64, 0xB6, 0xC3, /* 0x18-0x1B */
+	0xA7, 0x5A, 0xC4, 0xE6, 0xC4, 0xEA, 0xC4, 0xF5, /* 0x1C-0x1F */
+	0xC6, 0x7D, 0xB4, 0x50, 0xC0, 0xDD, 0xC2, 0xC5, /* 0x20-0x23 */
+	0xC4, 0xB0, 0xA9, 0xD4, 0xC3, 0xBE, 0xC4, 0xFA, /* 0x24-0x27 */
+	0xB4, 0x59, 0xAE, 0xD4, 0xAE, 0xF6, 0xAF, 0x54, /* 0x28-0x2B */
+	0x00, 0x00, 0xA8, 0xD3, 0xA7, 0x4E, 0xB3, 0xD2, /* 0x2C-0x2F */
+	0xBE, 0xDB, 0xC3, 0x72, 0xC4, 0x6C, 0xBF, 0x63, /* 0x30-0x33 */
+	0xA6, 0xD1, 0xC4, 0xAA, 0xB8, 0xB8, 0xB8, 0xF4, /* 0x34-0x37 */
+	0xC5, 0x53, 0xBE, 0x7C, 0xC6, 0x4F, 0xB8, 0x4C, /* 0x38-0x3B */
+	0xB8, 0x53, 0xBA, 0xF1, 0xDB, 0x77, 0xBF, 0xFD, /* 0x3C-0x3F */
+	0xB3, 0xC0, 0xBD, 0xD7, 0xC3, 0x62, 0xA7, 0xCB, /* 0x40-0x43 */
+	0xC5, 0xA2, 0xC5, 0xA4, 0xA8, 0x63, 0xBD, 0x55, /* 0x44-0x47 */
+	0xB8, 0xEF, 0xB9, 0x70, 0xC2, 0x53, 0xB9, 0xF0, /* 0x48-0x4B */
+	0xBC, 0xD3, 0xB2, 0x5C, 0xBA, 0x7C, 0xB2, 0xD6, /* 0x4C-0x4F */
+	0xC1, 0x5C, 0xAD, 0xAE, 0xB0, 0xC7, 0xA6, 0xD8, /* 0x50-0x53 */
+	0xBB, 0xFE, 0xAD, 0xE2, 0xB8, 0x57, 0xBA, 0xF0, /* 0x54-0x57 */
+	0xB5, 0xD9, 0xB3, 0xAE, 0xC5, 0xAA, 0xCE, 0xD4, /* 0x58-0x5B */
+	0xBC, 0xD6, 0xBF, 0xD5, 0xA4, 0xA6, 0xB9, 0xE7, /* 0x5C-0x5F */
+	0xAB, 0xE3, 0xB2, 0x76, 0xB2, 0xA7, 0xA5, 0x5F, /* 0x60-0x63 */
+	0xED, 0xA8, 0xAB, 0x4B, 0xB4, 0x5F, 0xA4, 0xA3, /* 0x64-0x67 */
+	0xAA, 0x63, 0xBC, 0xC6, 0xAF, 0xC1, 0xB0, 0xD1, /* 0x68-0x6B */
+	0xB6, 0xEB, 0xAC, 0xD9, 0xB8, 0xAD, 0xBB, 0xA1, /* 0x6C-0x6F */
+	0xB1, 0xFE, 0xA8, 0xB0, 0xA8, 0x48, 0xAC, 0x42, /* 0x70-0x73 */
+	0xAD, 0x59, 0xB1, 0xB0, 0xB2, 0xA4, 0xAB, 0x47, /* 0x74-0x77 */
+	0xA8, 0xE2, 0x00, 0x00, 0xB1, 0xE7, 0xC2, 0xB3, /* 0x78-0x7B */
+	0xA8, 0x7D, 0xBD, 0xCC, 0xB6, 0x71, 0xC0, 0x79, /* 0x7C-0x7F */
+	
+	0xA7, 0x66, 0xA4, 0x6B, 0xC3, 0x66, 0xAE, 0xC8, /* 0x80-0x83 */
+	0xC2, 0x6F, 0xC4, 0x72, 0xBE, 0x5B, 0xC6, 0x7A, /* 0x84-0x87 */
+	0xC4, 0x52, 0xBE, 0xA4, 0xA4, 0x4F, 0xBE, 0xE4, /* 0x88-0x8B */
+	0xBE, 0xFA, 0xF7, 0x65, 0xA6, 0x7E, 0xBC, 0xA6, /* 0x8C-0x8F */
+	0xC5, 0xCA, 0xBC, 0xBF, 0xBA, 0xA7, 0xB7, 0xD2, /* 0x90-0x93 */
+	0xE6, 0xA3, 0x00, 0x00, 0xBD, 0x6D, 0xC1, 0x70, /* 0x94-0x97 */
+	0xBD, 0xFB, 0xBD, 0xAC, 0xB3, 0x73, 0xC1, 0xE5, /* 0x98-0x9B */
+	0xA6, 0x43, 0xA6, 0x48, 0xAB, 0x7C, 0xAF, 0x50, /* 0x9C-0x9F */
+	0xB5, 0xF5, 0xBB, 0xA1, 0xB7, 0x47, 0xA9, 0xC0, /* 0xA0-0xA3 */
+	0xB1, 0xC9, 0xC0, 0xD4, 0xC3, 0xAE, 0xC2, 0x79, /* 0xA4-0xA7 */
+	0xA5, 0x4F, 0xCB, 0xF1, 0xB9, 0xE7, 0xC0, 0xAD, /* 0xA8-0xAB */
+	0xCC, 0xB0, 0xAC, 0xC2, 0xBC, 0xFC, 0xB2, 0xDC, /* 0xAC-0xAF */
+	0xB2, 0xE2, 0xB9, 0x61, 0xB9, 0x73, 0xC6, 0x46, /* 0xB0-0xB3 */
+	0xBB, 0xE2, 0xA8, 0xD2, 0xC2, 0xA7, 0xC4, 0xBF, /* 0xB4-0xB7 */
+	0xC1, 0xF5, 0xB4, 0x63, 0xA4, 0x46, 0xB9, 0xB1, /* 0xB8-0xBB */
+	0xBC, 0x64, 0xA7, 0xBF, 0xAE, 0xC6, 0xBC, 0xD6, /* 0xBC-0xBF */
+	0xBF, 0x52, 0xC0, 0xF8, 0xE7, 0x64, 0xBF, 0xF1, /* 0xC0-0xC3 */
+	0xC0, 0x73, 0xB7, 0x77, 0xA8, 0xBF, 0xBC, 0x42, /* 0xC4-0xC7 */
+	0xCC, 0xD8, 0xAC, 0x68, 0xAC, 0x79, 0xB7, 0xC8, /* 0xC8-0xCB */
+	0xAF, 0x5B, 0xAF, 0x64, 0xB2, 0xB8, 0xAF, 0xC3, /* 0xCC-0xCF */
+	0xC3, 0xFE, 0xA4, 0xBB, 0xBC, 0xAE, 0xB3, 0xB0, /* 0xD0-0xD3 */
+	0xAD, 0xDB, 0xB1, 0x5B, 0xB2, 0x5F, 0xBD, 0xFC, /* 0xD4-0xD7 */
+	0xAB, 0xDF, 0xB7, 0x58, 0xAE, 0xDF, 0xB2, 0x76, /* 0xD8-0xDB */
+	0xB6, 0xA9, 0xA7, 0x51, 0xA6, 0x4F, 0xBC, 0x69, /* 0xDC-0xDF */
+	0xA9, 0xF6, 0xA7, 0xF5, 0xB1, 0xF9, 0xAA, 0x64, /* 0xE0-0xE3 */
+	0xB2, 0x7A, 0xB5, 0x67, 0xBF, 0xA9, 0x00, 0x00, /* 0xE4-0xE7 */
+	0xB8, 0xCC, 0xA8, 0xBD, 0xC2, 0xF7, 0xB0, 0xCE, /* 0xE8-0xEB */
+	0xB7, 0xC4, 0xA7, 0x5B, 0xBF, 0x4D, 0xBF, 0x5A, /* 0xEC-0xEF */
+	0xC4, 0xA9, 0x00, 0x00, 0xC5, 0xEC, 0xC5, 0xEF, /* 0xF0-0xF3 */
+	0xAA, 0x4C, 0xB2, 0x4F, 0xC1, 0x7B, 0xA5, 0xDF, /* 0xF4-0xF7 */
+	0xB2, 0xC1, 0xB2, 0xC9, 0xAA, 0xAC, 0xAA, 0xA5, /* 0xF8-0xFB */
+	0xC3, 0xD1, 0xA4, 0xB0, 0xAF, 0xF9, 0xA8, 0xEB, /* 0xFC-0xFF */
+};
+
+static unsigned char u2c_FA[512] = {
+	0xA4, 0xC1, 0xAB, 0xD7, 0xA9, 0xDD, 0xBF, 0x7D, /* 0x00-0x03 */
+	0xA6, 0x76, 0xAC, 0x7D, 0xBC, 0xC9, 0xBF, 0xE7, /* 0x04-0x07 */
+	0xA6, 0xE6, 0xAD, 0xB0, 0xA8, 0xA3, 0xB9, 0xF8, /* 0x08-0x0B */
+	0xC9, 0x4A, 0xDD, 0xFC, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0xB6, 0xEF, 0x00, 0x00, 0xB4, 0xB8, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0xE8, 0xF9, 0xBD, 0xDE, 0xAF, 0x71, /* 0x14-0x17 */
+	0x00, 0x00, 0xAF, 0xAB, 0xB2, 0xBB, 0xBA, 0xD6, /* 0x18-0x1B */
+	0xB9, 0x74, 0xBA, 0xEB, 0xA6, 0xD0, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0xBD, 0xD1, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0xB6, 0x68, 0xB3, 0xA3, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0xB6, 0xBA, 0xB9, 0x7D, /* 0x28-0x2B */
+	0xC0, 0x5D, 0xC5, 0x62, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+};
+
+static unsigned char u2c_FE[512] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x03 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x04-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0C-0x0F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x13 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x14-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x1C-0x1F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x23 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x24-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2C-0x2F */
+	0xA1, 0x4A, 0xA1, 0x57, 0x00, 0x00, 0xA1, 0x59, /* 0x30-0x33 */
+	0xA1, 0x5B, 0xA1, 0x5F, 0xA1, 0x60, 0xA1, 0x63, /* 0x34-0x37 */
+	0xA1, 0x64, 0xA1, 0x67, 0xA1, 0x68, 0xA1, 0x6B, /* 0x38-0x3B */
+	0xA1, 0x6C, 0xA1, 0x6F, 0xA1, 0x70, 0xA1, 0x73, /* 0x3C-0x3F */
+	0xA1, 0x74, 0xA1, 0x77, 0xA1, 0x78, 0xA1, 0x7B, /* 0x40-0x43 */
+	0xA1, 0x7C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x44-0x47 */
+	0x00, 0x00, 0xA1, 0xC6, 0xA1, 0xC7, 0xA1, 0xCA, /* 0x48-0x4B */
+	0xA1, 0xCB, 0xA1, 0xC8, 0xA1, 0xC9, 0xA1, 0x5C, /* 0x4C-0x4F */
+	0xA1, 0x4D, 0xA1, 0x4E, 0xA1, 0x4F, 0x00, 0x00, /* 0x50-0x53 */
+	0xA1, 0x51, 0xA1, 0x52, 0xA1, 0x53, 0xA1, 0x54, /* 0x54-0x57 */
+	0x00, 0x00, 0xA1, 0x7D, 0xA1, 0x7E, 0xA1, 0xA1, /* 0x58-0x5B */
+	0xA1, 0xA2, 0xA1, 0xA3, 0xA1, 0xA4, 0xA1, 0xCC, /* 0x5C-0x5F */
+	0xA1, 0xCD, 0xA1, 0xCE, 0xA1, 0xDE, 0xA1, 0xDF, /* 0x60-0x63 */
+	0xA1, 0xE0, 0xA1, 0xE1, 0xA1, 0xE2, 0x00, 0x00, /* 0x64-0x67 */
+	0xA2, 0x42, 0xA2, 0x4C, 0xA2, 0x4D, 0xA2, 0x4E, /* 0x68-0x6B */
+};
+
+static unsigned char u2c_FF[512] = {
+	0x00, 0x00, 0xA1, 0x49, 0xA1, 0xA8, 0xA1, 0xAD, /* 0x00-0x03 */
+	0xA2, 0x43, 0xA2, 0x48, 0xA1, 0xAE, 0xA1, 0xA6, /* 0x04-0x07 */
+	0xA1, 0x5D, 0xA1, 0x5E, 0xA1, 0xAF, 0xA1, 0xCF, /* 0x08-0x0B */
+	0xA1, 0x41, 0xA1, 0xD0, 0xA1, 0x44, 0xA1, 0xFE, /* 0x0C-0x0F */
+	0xA2, 0xAF, 0xA2, 0xB0, 0xA2, 0xB1, 0xA2, 0xB2, /* 0x10-0x13 */
+	0xA2, 0xB3, 0xA2, 0xB4, 0xA2, 0xB5, 0xA2, 0xB6, /* 0x14-0x17 */
+	0xA2, 0xB7, 0xA2, 0xB8, 0xA1, 0x47, 0xA1, 0x46, /* 0x18-0x1B */
+	0xA1, 0xD5, 0xA1, 0xD7, 0xA1, 0xD6, 0xA1, 0x48, /* 0x1C-0x1F */
+	0xA2, 0x49, 0xA2, 0xCF, 0xA2, 0xD0, 0xA2, 0xD1, /* 0x20-0x23 */
+	0xA2, 0xD2, 0xA2, 0xD3, 0xA2, 0xD4, 0xA2, 0xD5, /* 0x24-0x27 */
+	0xA2, 0xD6, 0xA2, 0xD7, 0xA2, 0xD8, 0xA2, 0xD9, /* 0x28-0x2B */
+	0xA2, 0xDA, 0xA2, 0xDB, 0xA2, 0xDC, 0xA2, 0xDD, /* 0x2C-0x2F */
+	0xA2, 0xDE, 0xA2, 0xDF, 0xA2, 0xE0, 0xA2, 0xE1, /* 0x30-0x33 */
+	0xA2, 0xE2, 0xA2, 0xE3, 0xA2, 0xE4, 0xA2, 0xE5, /* 0x34-0x37 */
+	0xA2, 0xE6, 0xA2, 0xE7, 0xA2, 0xE8, 0xA1, 0x65, /* 0x38-0x3B */
+	0xA2, 0x40, 0xA1, 0x66, 0xA1, 0x73, 0xA1, 0xC4, /* 0x3C-0x3F */
+	0xA1, 0xA5, 0xA2, 0xE9, 0xA2, 0xEA, 0xA2, 0xEB, /* 0x40-0x43 */
+	0xA2, 0xEC, 0xA2, 0xED, 0xA2, 0xEE, 0xA2, 0xEF, /* 0x44-0x47 */
+	0xA2, 0xF0, 0xA2, 0xF1, 0xA2, 0xF2, 0xA2, 0xF3, /* 0x48-0x4B */
+	0xA2, 0xF4, 0xA2, 0xF5, 0xA2, 0xF6, 0xA2, 0xF7, /* 0x4C-0x4F */
+	0xA2, 0xF8, 0xA2, 0xF9, 0xA2, 0xFA, 0xA2, 0xFB, /* 0x50-0x53 */
+	0xA2, 0xFC, 0xA2, 0xFD, 0xA2, 0xFE, 0xA3, 0x40, /* 0x54-0x57 */
+	0xA3, 0x41, 0xA3, 0x42, 0xA3, 0x43, 0xA1, 0x61, /* 0x58-0x5B */
+	0xA1, 0x55, 0xA1, 0x62, 0xA1, 0xE3, 0x00, 0x00, /* 0x5C-0x5F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x63 */
+	0xA1, 0x4E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x64-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x6C-0x6F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x73 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x74-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7C-0x7F */
+	
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x83 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x84-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x8C-0x8F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x93 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x94-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9B */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x9C-0x9F */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA4-0xA7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xAC-0xAF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB4-0xB7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xBC-0xBF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC4-0xC7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xCC-0xCF */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD3 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD4-0xD7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDB */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xDC-0xDF */
+	0xA2, 0x46, 0xA2, 0x47, 0x00, 0x00, 0xA1, 0xC3, /* 0xE0-0xE3 */
+	0x00, 0x00, 0xA2, 0x44, 0x00, 0x00, 0x00, 0x00, /* 0xE4-0xE7 */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	NULL,   NULL,   u2c_02, u2c_03, NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	u2c_20, u2c_21, u2c_22, u2c_23, NULL,   u2c_25, u2c_26, NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	u2c_30, u2c_31, u2c_32, u2c_33, NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   u2c_4E, u2c_4F, 
+	u2c_50, u2c_51, u2c_52, u2c_53, u2c_54, u2c_55, u2c_56, u2c_57, 
+	u2c_58, u2c_59, u2c_5A, u2c_5B, u2c_5C, u2c_5D, u2c_5E, u2c_5F, 
+	u2c_60, u2c_61, u2c_62, u2c_63, u2c_64, u2c_65, u2c_66, u2c_67, 
+	u2c_68, u2c_69, u2c_6A, u2c_6B, u2c_6C, u2c_6D, u2c_6E, u2c_6F, 
+	u2c_70, u2c_71, u2c_72, u2c_73, u2c_74, u2c_75, u2c_76, u2c_77, 
+	u2c_78, u2c_79, u2c_7A, u2c_7B, u2c_7C, u2c_7D, u2c_7E, u2c_7F, 
+	u2c_80, u2c_81, u2c_82, u2c_83, u2c_84, u2c_85, u2c_86, u2c_87, 
+	u2c_88, u2c_89, u2c_8A, u2c_8B, u2c_8C, u2c_8D, u2c_8E, u2c_8F, 
+	u2c_90, u2c_91, u2c_92, u2c_93, u2c_94, u2c_95, u2c_96, u2c_97, 
+	u2c_98, u2c_99, u2c_9A, u2c_9B, u2c_9C, u2c_9D, u2c_9E, u2c_9F, 
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   u2c_DC, NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   u2c_F9, u2c_FA, NULL,   NULL,   NULL,   u2c_FE, u2c_FF, };
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(const wchar_t uni,
+			unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni&0xFF;
+	unsigned char ch = (uni>>8)&0xFF;
+	int n;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset) {
+		if (boundlen <= 1)
+			return -ENAMETOOLONG;
+		out[0] = uni2charset[cl*2];
+		out[1] = uni2charset[cl*2+1];
+		if (out[0] == 0x00 && out[1] == 0x00)
+			return -EINVAL;
+		n = 2;
+	} else if (ch==0 && cl) {
+		out[0] = cl;
+		n = 1;
+	}
+	else
+		return -EINVAL;
+
+	return n;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen,
+			wchar_t *uni)
+{
+	unsigned char ch, cl;
+	wchar_t *charset2uni;
+	int n;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	if (boundlen == 1) {
+		*uni = rawstring[0];
+		return 1;
+	}
+
+	ch = rawstring[0];
+	cl = rawstring[1];
+
+	charset2uni = page_charset2uni[ch];
+	if (charset2uni && cl) {
+		*uni = charset2uni[cl];
+		if (*uni == 0x0000)
+			return -EINVAL;
+		n = 2;
+	} else{
+		*uni = ch;
+		n = 1;
+	}
+	return n;
+}
+
+static struct nls_table table = {
+	"cp950",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_cp950(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_cp950(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_cp950)
+module_exit(exit_nls_cp950)
+MODULE_LICENSE("Dual BSD/GPL");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ *
+---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
diff --git a/fs/nls/nls_euc-jp.c b/fs/nls/nls_euc-jp.c
new file mode 100644
index 00000000000000..ea4015677da05f
--- /dev/null
+++ b/fs/nls/nls_euc-jp.c
@@ -0,0 +1,602 @@
+/*
+ * linux/fs/nls_euc-jp.c
+ *
+ * Added `OSF/JVC Recommended Code Set Conversion Specification
+ * between Japanese EUC and Shift-JIS' support: <hirofumi@mail.parknet.co.jp>
+ * (http://www.opengroup.or.jp/jvc/cde/sjis-euc-e.html)
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static struct nls_table *p_nls;
+
+#define IS_SJIS_LOW_BYTE(l)	((0x40 <= (l)) && ((l) <= 0xFC) && ((l) != 0x7F))
+/* JIS X 0208 (include NEC spesial characters) */
+#define IS_SJIS_JISX0208(h, l)	((((0x81 <= (h)) && ((h) <= 0x9F))	\
+				 || ((0xE0 <= (h)) && ((h) <= 0xEA)))	\
+				 && IS_SJIS_LOW_BYTE(l))
+#define IS_SJIS_JISX0201KANA(c)	((0xA1 <= (c)) && ((c) <= 0xDF))
+#define IS_SJIS_UDC_LOW(h, l)	(((0xF0 <= (h)) && ((h) <= 0xF4))	\
+				 && IS_SJIS_LOW_BYTE(l))
+#define IS_SJIS_UDC_HI(h, l)	(((0xF5 <= (h)) && ((h) <= 0xF9))	\
+				 && IS_SJIS_LOW_BYTE(l))
+#define IS_SJIS_IBM(h, l)	(((0xFA <= (h)) && ((h) <= 0xFC))	\
+				 && IS_SJIS_LOW_BYTE(l))
+#define IS_SJIS_NECIBM(h, l)	(((0xED <= (h)) && ((h) <= 0xEE))	\
+				 && IS_SJIS_LOW_BYTE(l))
+#define MAP_SJIS2EUC(sjis_hi, sjis_lo, sjis_p, euc_hi, euc_lo, euc_p) {		\
+	if ((sjis_lo) >= 0x9F) {						\
+		(euc_hi) = (sjis_hi) * 2 - (((sjis_p) * 2 - (euc_p)) - 1);	\
+		(euc_lo) = (sjis_lo) + 2;					\
+	} else {								\
+		(euc_hi) = (sjis_hi) * 2 - ((sjis_p) * 2 - (euc_p));		\
+		(euc_lo) = (sjis_lo) + ((sjis_lo) >= 0x7F ? 0x60 : 0x61);	\
+	}									\
+} while(0)
+
+#define SS2		(0x8E)		/* Single Shift 2 */
+#define SS3		(0x8F)		/* Single Shift 3 */
+#define IS_EUC_BYTE(c)		((0xA1 <= (c)) && ((c) <= 0xFE))
+#define IS_EUC_JISX0208(h, l)	(IS_EUC_BYTE(h) && IS_EUC_BYTE(l))
+#define IS_EUC_JISX0201KANA(h, l)	(((h) == SS2) && (0xA1 <= (l) && (l) <= 0xDF))
+#define IS_EUC_UDC_LOW(h, l)	(((0xF5 <= (h)) && ((h) <= 0xFE))	\
+				 && IS_EUC_BYTE(l))
+#define IS_EUC_UDC_HI(h, l)	IS_EUC_UDC_LOW(h, l) /* G3 block */
+#define MAP_EUC2SJIS(euc_hi, euc_lo, euc_p, sjis_hi, sjis_lo, sjis_p) {		\
+	if ((euc_hi) & 1) {							\
+		(sjis_hi) = (euc_hi) / 2 + ((sjis_p) - (euc_p) / 2);		\
+		(sjis_lo) = (euc_lo) - ((euc_lo) >= 0xE0 ? 0x60 : 0x61);	\
+	} else {								\
+		(sjis_hi) = (euc_hi) / 2 + (((sjis_p) - (euc_p) / 2) - 1);	\
+		(sjis_lo) = (euc_lo) - 2;					\
+	}									\
+} while(0)
+
+/* SJIS IBM extended characters to EUC map */
+static unsigned char sjisibm2euc_map[][2] = {
+	{0xF3, 0xF3}, {0xF3, 0xF4}, {0xF3, 0xF5}, {0xF3, 0xF6}, {0xF3, 0xF7},
+	{0xF3, 0xF8}, {0xF3, 0xF9}, {0xF3, 0xFA}, {0xF3, 0xFB}, {0xF3, 0xFC},
+	{0xF3, 0xFD}, {0xF3, 0xFE}, {0xF4, 0xA1}, {0xF4, 0xA2}, {0xF4, 0xA3},
+	{0xF4, 0xA4}, {0xF4, 0xA5}, {0xF4, 0xA6}, {0xF4, 0xA7}, {0xF4, 0xA8},
+	{0xA2, 0xCC}, {0xA2, 0xC3}, {0xF4, 0xA9}, {0xF4, 0xAA}, {0xF4, 0xAB},
+	{0xF4, 0xAC}, {0xF4, 0xAD}, {0xA2, 0xE8}, {0xD4, 0xE3}, {0xDC, 0xDF},
+	{0xE4, 0xE9}, {0xE3, 0xF8}, {0xD9, 0xA1}, {0xB1, 0xBB}, {0xF4, 0xAE},
+	{0xC2, 0xAD}, {0xC3, 0xFC}, {0xE4, 0xD0}, {0xC2, 0xBF}, {0xBC, 0xF4},
+	{0xB0, 0xA9}, {0xB0, 0xC8}, {0xF4, 0xAF}, {0xB0, 0xD2}, {0xB0, 0xD4},
+	{0xB0, 0xE3}, {0xB0, 0xEE}, {0xB1, 0xA7}, {0xB1, 0xA3}, {0xB1, 0xAC},
+	{0xB1, 0xA9}, {0xB1, 0xBE}, {0xB1, 0xDF}, {0xB1, 0xD8}, {0xB1, 0xC8},
+	{0xB1, 0xD7}, {0xB1, 0xE3}, {0xB1, 0xF4}, {0xB1, 0xE1}, {0xB2, 0xA3},
+	{0xF4, 0xB0}, {0xB2, 0xBB}, {0xB2, 0xE6}, {0x00, 0x00}, {0xB2, 0xED},
+	{0xB2, 0xF5}, {0xB2, 0xFC}, {0xF4, 0xB1}, {0xB3, 0xB5}, {0xB3, 0xD8},
+	{0xB3, 0xDB}, {0xB3, 0xE5}, {0xB3, 0xEE}, {0xB3, 0xFB}, {0xF4, 0xB2},
+	{0xF4, 0xB3}, {0xB4, 0xC0}, {0xB4, 0xC7}, {0xB4, 0xD0}, {0xB4, 0xDE},
+	{0xF4, 0xB4}, {0xB5, 0xAA}, {0xF4, 0xB5}, {0xB5, 0xAF}, {0xB5, 0xC4},
+	{0xB5, 0xE8}, {0xF4, 0xB6}, {0xB7, 0xC2}, {0xB7, 0xE4}, {0xB7, 0xE8},
+	{0xB7, 0xE7}, {0xF4, 0xB7}, {0xF4, 0xB8}, {0xF4, 0xB9}, {0xB8, 0xCE},
+	{0xB8, 0xE1}, {0xB8, 0xF5}, {0xB8, 0xF7}, {0xB8, 0xF8}, {0xB8, 0xFC},
+	{0xB9, 0xAF}, {0xB9, 0xB7}, {0xBA, 0xBE}, {0xBA, 0xDB}, {0xCD, 0xAA},
+	{0xBA, 0xE1}, {0xF4, 0xBA}, {0xBA, 0xEB}, {0xBB, 0xB3}, {0xBB, 0xB8},
+	{0xF4, 0xBB}, {0xBB, 0xCA}, {0xF4, 0xBC}, {0xF4, 0xBD}, {0xBB, 0xD0},
+	{0xBB, 0xDE}, {0xBB, 0xF4}, {0xBB, 0xF5}, {0xBB, 0xF9}, {0xBC, 0xE4},
+	{0xBC, 0xED}, {0xBC, 0xFE}, {0xF4, 0xBE}, {0xBD, 0xC2}, {0xBD, 0xE7},
+	{0xF4, 0xBF}, {0xBD, 0xF0}, {0xBE, 0xB0}, {0xBE, 0xAC}, {0xF4, 0xC0},
+	{0xBE, 0xB3}, {0xBE, 0xBD}, {0xBE, 0xCD}, {0xBE, 0xC9}, {0xBE, 0xE4},
+	{0xBF, 0xA8}, {0xBF, 0xC9}, {0xC0, 0xC4}, {0xC0, 0xE4}, {0xC0, 0xF4},
+	{0xC1, 0xA6}, {0xF4, 0xC1}, {0xC1, 0xF5}, {0xC1, 0xFC}, {0xF4, 0xC2},
+	{0xC1, 0xF8}, {0xC2, 0xAB}, {0xC2, 0xA1}, {0xC2, 0xA5}, {0xF4, 0xC3},
+	{0xC2, 0xB8}, {0xC2, 0xBA}, {0xF4, 0xC4}, {0xC2, 0xC4}, {0xC2, 0xD2},
+	{0xC2, 0xD7}, {0xC2, 0xDB}, {0xC2, 0xDE}, {0xC2, 0xED}, {0xC2, 0xF0},
+	{0xF4, 0xC5}, {0xC3, 0xA1}, {0xC3, 0xB5}, {0xC3, 0xC9}, {0xC3, 0xB9},
+	{0xF4, 0xC6}, {0xC3, 0xD8}, {0xC3, 0xFE}, {0xF4, 0xC7}, {0xC4, 0xCC},
+	{0xF4, 0xC8}, {0xC4, 0xD9}, {0xC4, 0xEA}, {0xC4, 0xFD}, {0xF4, 0xC9},
+	{0xC5, 0xA7}, {0xC5, 0xB5}, {0xC5, 0xB6}, {0xF4, 0xCA}, {0xC5, 0xD5},
+	{0xC6, 0xB8}, {0xC6, 0xD7}, {0xC6, 0xE0}, {0xC6, 0xEA}, {0xC6, 0xE3},
+	{0xC7, 0xA1}, {0xC7, 0xAB}, {0xC7, 0xC7}, {0xC7, 0xC3}, {0xC7, 0xCB},
+	{0xC7, 0xCF}, {0xC7, 0xD9}, {0xF4, 0xCB}, {0xF4, 0xCC}, {0xC7, 0xE6},
+	{0xC7, 0xEE}, {0xC7, 0xFC}, {0xC7, 0xEB}, {0xC7, 0xF0}, {0xC8, 0xB1},
+	{0xC8, 0xE5}, {0xC8, 0xF8}, {0xC9, 0xA6}, {0xC9, 0xAB}, {0xC9, 0xAD},
+	{0xF4, 0xCD}, {0xC9, 0xCA}, {0xC9, 0xD3}, {0xC9, 0xE9}, {0xC9, 0xE3},
+	{0xC9, 0xFC}, {0xC9, 0xF4}, {0xC9, 0xF5}, {0xF4, 0xCE}, {0xCA, 0xB3},
+	{0xCA, 0xBD}, {0xCA, 0xEF}, {0xCA, 0xF1}, {0xCB, 0xAE}, {0xF4, 0xCF},
+	{0xCB, 0xCA}, {0xCB, 0xE6}, {0xCB, 0xEA}, {0xCB, 0xF0}, {0xCB, 0xF4},
+	{0xCB, 0xEE}, {0xCC, 0xA5}, {0xCB, 0xF9}, {0xCC, 0xAB}, {0xCC, 0xAE},
+	{0xCC, 0xAD}, {0xCC, 0xB2}, {0xCC, 0xC2}, {0xCC, 0xD0}, {0xCC, 0xD9},
+	{0xF4, 0xD0}, {0xCD, 0xBB}, {0xF4, 0xD1}, {0xCE, 0xBB}, {0xF4, 0xD2},
+	{0xCE, 0xBA}, {0xCE, 0xC3}, {0xF4, 0xD3}, {0xCE, 0xF2}, {0xB3, 0xDD},
+	{0xCF, 0xD5}, {0xCF, 0xE2}, {0xCF, 0xE9}, {0xCF, 0xED}, {0xF4, 0xD4},
+	{0xF4, 0xD5}, {0xF4, 0xD6}, {0x00, 0x00}, {0xF4, 0xD7}, {0xD0, 0xE5},
+	{0xF4, 0xD8}, {0xD0, 0xE9}, {0xD1, 0xE8}, {0xF4, 0xD9}, {0xF4, 0xDA},
+	{0xD1, 0xEC}, {0xD2, 0xBB}, {0xF4, 0xDB}, {0xD3, 0xE1}, {0xD3, 0xE8},
+	{0xD4, 0xA7}, {0xF4, 0xDC}, {0xF4, 0xDD}, {0xD4, 0xD4}, {0xD4, 0xF2},
+	{0xD5, 0xAE}, {0xF4, 0xDE}, {0xD7, 0xDE}, {0xF4, 0xDF}, {0xD8, 0xA2},
+	{0xD8, 0xB7}, {0xD8, 0xC1}, {0xD8, 0xD1}, {0xD8, 0xF4}, {0xD9, 0xC6},
+	{0xD9, 0xC8}, {0xD9, 0xD1}, {0xF4, 0xE0}, {0xF4, 0xE1}, {0xF4, 0xE2},
+	{0xF4, 0xE3}, {0xF4, 0xE4}, {0xDC, 0xD3}, {0xDD, 0xC8}, {0xDD, 0xD4},
+	{0xDD, 0xEA}, {0xDD, 0xFA}, {0xDE, 0xA4}, {0xDE, 0xB0}, {0xF4, 0xE5},
+	{0xDE, 0xB5}, {0xDE, 0xCB}, {0xF4, 0xE6}, {0xDF, 0xB9}, {0xF4, 0xE7},
+	{0xDF, 0xC3}, {0xF4, 0xE8}, {0xF4, 0xE9}, {0xE0, 0xD9}, {0xF4, 0xEA},
+	{0xF4, 0xEB}, {0xE1, 0xE2}, {0xF4, 0xEC}, {0xF4, 0xED}, {0xF4, 0xEE},
+	{0xE2, 0xC7}, {0xE3, 0xA8}, {0xE3, 0xA6}, {0xE3, 0xA9}, {0xE3, 0xAF},
+	{0xE3, 0xB0}, {0xE3, 0xAA}, {0xE3, 0xAB}, {0xE3, 0xBC}, {0xE3, 0xC1},
+	{0xE3, 0xBF}, {0xE3, 0xD5}, {0xE3, 0xD8}, {0xE3, 0xD6}, {0xE3, 0xDF},
+	{0xE3, 0xE3}, {0xE3, 0xE1}, {0xE3, 0xD4}, {0xE3, 0xE9}, {0xE4, 0xA6},
+	{0xE3, 0xF1}, {0xE3, 0xF2}, {0xE4, 0xCB}, {0xE4, 0xC1}, {0xE4, 0xC3},
+	{0xE4, 0xBE}, {0xF4, 0xEF}, {0xE4, 0xC0}, {0xE4, 0xC7}, {0xE4, 0xBF},
+	{0xE4, 0xE0}, {0xE4, 0xDE}, {0xE4, 0xD1}, {0xF4, 0xF0}, {0xE4, 0xDC},
+	{0xE4, 0xD2}, {0xE4, 0xDB}, {0xE4, 0xD4}, {0xE4, 0xFA}, {0xE4, 0xEF},
+	{0xE5, 0xB3}, {0xE5, 0xBF}, {0xE5, 0xC9}, {0xE5, 0xD0}, {0xE5, 0xE2},
+	{0xE5, 0xEA}, {0xE5, 0xEB}, {0xF4, 0xF1}, {0xF4, 0xF2}, {0xF4, 0xF3},
+	{0xE6, 0xE8}, {0xE6, 0xEF}, {0xE7, 0xAC}, {0xF4, 0xF4}, {0xE7, 0xAE},
+	{0xF4, 0xF5}, {0xE7, 0xB1}, {0xF4, 0xF6}, {0xE7, 0xB2}, {0xE8, 0xB1},
+	{0xE8, 0xB6}, {0xF4, 0xF7}, {0xF4, 0xF8}, {0xE8, 0xDD}, {0xF4, 0xF9},
+	{0xF4, 0xFA}, {0xE9, 0xD1}, {0xF4, 0xFB}, {0xE9, 0xED}, {0xEA, 0xCD},
+	{0xF4, 0xFC}, {0xEA, 0xDB}, {0xEA, 0xE6}, {0xEA, 0xEA}, {0xEB, 0xA5},
+	{0xEB, 0xFB}, {0xEB, 0xFA}, {0xF4, 0xFD}, {0xEC, 0xD6}, {0xF4, 0xFE},
+};
+
+#define IS_EUC_IBM2JISX0208(h, l) \
+		(((h) == 0xA2 && (l) == 0xCC) || ((h) == 0xA2 && (l) == 0xE8))
+
+/* EUC to SJIS IBM extended characters map (G3 JIS X 0212 block) */
+static struct {
+	unsigned short euc;
+	unsigned char sjis[2];
+} euc2sjisibm_jisx0212_map[] = {
+	{0xA2C3, {0xFA, 0x55}}, {0xB0A9, {0xFA, 0x68}}, {0xB0C8, {0xFA, 0x69}},
+	{0xB0D2, {0xFA, 0x6B}}, {0xB0D4, {0xFA, 0x6C}}, {0xB0E3, {0xFA, 0x6D}},
+	{0xB0EE, {0xFA, 0x6E}}, {0xB1A3, {0xFA, 0x70}}, {0xB1A7, {0xFA, 0x6F}},
+	{0xB1A9, {0xFA, 0x72}}, {0xB1AC, {0xFA, 0x71}}, {0xB1BB, {0xFA, 0x61}},
+	{0xB1BE, {0xFA, 0x73}}, {0xB1C8, {0xFA, 0x76}}, {0xB1D7, {0xFA, 0x77}},
+	{0xB1D8, {0xFA, 0x75}}, {0xB1DF, {0xFA, 0x74}}, {0xB1E1, {0xFA, 0x7A}},
+	{0xB1E3, {0xFA, 0x78}}, {0xB1F4, {0xFA, 0x79}}, {0xB2A3, {0xFA, 0x7B}},
+	{0xB2BB, {0xFA, 0x7D}}, {0xB2E6, {0xFA, 0x7E}}, {0xB2ED, {0xFA, 0x80}},
+	{0xB2F5, {0xFA, 0x81}}, {0xB2FC, {0xFA, 0x82}}, {0xB3B5, {0xFA, 0x84}},
+	{0xB3D8, {0xFA, 0x85}}, {0xB3DB, {0xFA, 0x86}}, {0xB3DD, {0xFB, 0x77}},
+	{0xB3E5, {0xFA, 0x87}}, {0xB3EE, {0xFA, 0x88}}, {0xB3FB, {0xFA, 0x89}},
+	{0xB4C0, {0xFA, 0x8C}}, {0xB4C7, {0xFA, 0x8D}}, {0xB4D0, {0xFA, 0x8E}},
+	{0xB4DE, {0xFA, 0x8F}}, {0xB5AA, {0xFA, 0x91}}, {0xB5AF, {0xFA, 0x93}},
+	{0xB5C4, {0xFA, 0x94}}, {0xB5E8, {0xFA, 0x95}}, {0xB7C2, {0xFA, 0x97}},
+	{0xB7E4, {0xFA, 0x98}}, {0xB7E7, {0xFA, 0x9A}}, {0xB7E8, {0xFA, 0x99}},
+	{0xB8CE, {0xFA, 0x9E}}, {0xB8E1, {0xFA, 0x9F}}, {0xB8F5, {0xFA, 0xA0}},
+	{0xB8F7, {0xFA, 0xA1}}, {0xB8F8, {0xFA, 0xA2}}, {0xB8FC, {0xFA, 0xA3}},
+	{0xB9AF, {0xFA, 0xA4}}, {0xB9B7, {0xFA, 0xA5}}, {0xBABE, {0xFA, 0xA6}},
+	{0xBADB, {0xFA, 0xA7}}, {0xBAE1, {0xFA, 0xA9}}, {0xBAEB, {0xFA, 0xAB}},
+	{0xBBB3, {0xFA, 0xAC}}, {0xBBB8, {0xFA, 0xAD}}, {0xBBCA, {0xFA, 0xAF}},
+	{0xBBD0, {0xFA, 0xB2}}, {0xBBDE, {0xFA, 0xB3}}, {0xBBF4, {0xFA, 0xB4}},
+	{0xBBF5, {0xFA, 0xB5}}, {0xBBF9, {0xFA, 0xB6}}, {0xBCE4, {0xFA, 0xB7}},
+	{0xBCED, {0xFA, 0xB8}}, {0xBCF4, {0xFA, 0x67}}, {0xBCFE, {0xFA, 0xB9}},
+	{0xBDC2, {0xFA, 0xBB}}, {0xBDE7, {0xFA, 0xBC}}, {0xBDF0, {0xFA, 0xBE}},
+	{0xBEAC, {0xFA, 0xC0}}, {0xBEB0, {0xFA, 0xBF}}, {0xBEB3, {0xFA, 0xC2}},
+	{0xBEBD, {0xFA, 0xC3}}, {0xBEC9, {0xFA, 0xC5}}, {0xBECD, {0xFA, 0xC4}},
+	{0xBEE4, {0xFA, 0xC6}}, {0xBFA8, {0xFA, 0xC7}}, {0xBFC9, {0xFA, 0xC8}},
+	{0xC0C4, {0xFA, 0xC9}}, {0xC0E4, {0xFA, 0xCA}}, {0xC0F4, {0xFA, 0xCB}},
+	{0xC1A6, {0xFA, 0xCC}}, {0xC1F5, {0xFA, 0xCE}}, {0xC1F8, {0xFA, 0xD1}},
+	{0xC1FC, {0xFA, 0xCF}}, {0xC2A1, {0xFA, 0xD3}}, {0xC2A5, {0xFA, 0xD4}},
+	{0xC2AB, {0xFA, 0xD2}}, {0xC2AD, {0xFA, 0x63}}, {0xC2B8, {0xFA, 0xD6}},
+	{0xC2BA, {0xFA, 0xD7}}, {0xC2BF, {0xFA, 0x66}}, {0xC2C4, {0xFA, 0xD9}},
+	{0xC2D2, {0xFA, 0xDA}}, {0xC2D7, {0xFA, 0xDB}}, {0xC2DB, {0xFA, 0xDC}},
+	{0xC2DE, {0xFA, 0xDD}}, {0xC2ED, {0xFA, 0xDE}}, {0xC2F0, {0xFA, 0xDF}},
+	{0xC3A1, {0xFA, 0xE1}}, {0xC3B5, {0xFA, 0xE2}}, {0xC3B9, {0xFA, 0xE4}},
+	{0xC3C9, {0xFA, 0xE3}}, {0xC3D8, {0xFA, 0xE6}}, {0xC3FC, {0xFA, 0x64}},
+	{0xC3FE, {0xFA, 0xE7}}, {0xC4CC, {0xFA, 0xE9}}, {0xC4D9, {0xFA, 0xEB}},
+	{0xC4EA, {0xFA, 0xEC}}, {0xC4FD, {0xFA, 0xED}}, {0xC5A7, {0xFA, 0xEF}},
+	{0xC5B5, {0xFA, 0xF0}}, {0xC5B6, {0xFA, 0xF1}}, {0xC5D5, {0xFA, 0xF3}},
+	{0xC6B8, {0xFA, 0xF4}}, {0xC6D7, {0xFA, 0xF5}}, {0xC6E0, {0xFA, 0xF6}},
+	{0xC6E3, {0xFA, 0xF8}}, {0xC6EA, {0xFA, 0xF7}}, {0xC7A1, {0xFA, 0xF9}},
+	{0xC7AB, {0xFA, 0xFA}}, {0xC7C3, {0xFA, 0xFC}}, {0xC7C7, {0xFA, 0xFB}},
+	{0xC7CB, {0xFB, 0x40}}, {0xC7CF, {0xFB, 0x41}}, {0xC7D9, {0xFB, 0x42}},
+	{0xC7E6, {0xFB, 0x45}}, {0xC7EB, {0xFB, 0x48}}, {0xC7EE, {0xFB, 0x46}},
+	{0xC7F0, {0xFB, 0x49}}, {0xC7FC, {0xFB, 0x47}}, {0xC8B1, {0xFB, 0x4A}},
+	{0xC8E5, {0xFB, 0x4B}}, {0xC8F8, {0xFB, 0x4C}}, {0xC9A6, {0xFB, 0x4D}},
+	{0xC9AB, {0xFB, 0x4E}}, {0xC9AD, {0xFB, 0x4F}}, {0xC9CA, {0xFB, 0x51}},
+	{0xC9D3, {0xFB, 0x52}}, {0xC9E3, {0xFB, 0x54}}, {0xC9E9, {0xFB, 0x53}},
+	{0xC9F4, {0xFB, 0x56}}, {0xC9F5, {0xFB, 0x57}}, {0xC9FC, {0xFB, 0x55}},
+	{0xCAB3, {0xFB, 0x59}}, {0xCABD, {0xFB, 0x5A}}, {0xCAEF, {0xFB, 0x5B}},
+	{0xCAF1, {0xFB, 0x5C}}, {0xCBAE, {0xFB, 0x5D}}, {0xCBCA, {0xFB, 0x5F}},
+	{0xCBE6, {0xFB, 0x60}}, {0xCBEA, {0xFB, 0x61}}, {0xCBEE, {0xFB, 0x64}},
+	{0xCBF0, {0xFB, 0x62}}, {0xCBF4, {0xFB, 0x63}}, {0xCBF9, {0xFB, 0x66}},
+	{0xCCA5, {0xFB, 0x65}}, {0xCCAB, {0xFB, 0x67}}, {0xCCAD, {0xFB, 0x69}},
+	{0xCCAE, {0xFB, 0x68}}, {0xCCB2, {0xFB, 0x6A}}, {0xCCC2, {0xFB, 0x6B}},
+	{0xCCD0, {0xFB, 0x6C}}, {0xCCD9, {0xFB, 0x6D}}, {0xCDAA, {0xFA, 0xA8}},
+	{0xCDBB, {0xFB, 0x6F}}, {0xCEBA, {0xFB, 0x73}}, {0xCEBB, {0xFB, 0x71}},
+	{0xCEC3, {0xFB, 0x74}}, {0xCEF2, {0xFB, 0x76}}, {0xCFD5, {0xFB, 0x78}},
+	{0xCFE2, {0xFB, 0x79}}, {0xCFE9, {0xFB, 0x7A}}, {0xCFED, {0xFB, 0x7B}},
+	{0xD0E5, {0xFB, 0x81}}, {0xD0E9, {0xFB, 0x83}}, {0xD1E8, {0xFB, 0x84}},
+	{0xD1EC, {0xFB, 0x87}}, {0xD2BB, {0xFB, 0x88}}, {0xD3E1, {0xFB, 0x8A}},
+	{0xD3E8, {0xFB, 0x8B}}, {0xD4A7, {0xFB, 0x8C}}, {0xD4D4, {0xFB, 0x8F}},
+	{0xD4E3, {0xFA, 0x5C}}, {0xD4F2, {0xFB, 0x90}}, {0xD5AE, {0xFB, 0x91}},
+	{0xD7DE, {0xFB, 0x93}}, {0xD8A2, {0xFB, 0x95}}, {0xD8B7, {0xFB, 0x96}},
+	{0xD8C1, {0xFB, 0x97}}, {0xD8D1, {0xFB, 0x98}}, {0xD8F4, {0xFB, 0x99}},
+	{0xD9A1, {0xFA, 0x60}}, {0xD9C6, {0xFB, 0x9A}}, {0xD9C8, {0xFB, 0x9B}},
+	{0xD9D1, {0xFB, 0x9C}}, {0xDCD3, {0xFB, 0xA2}}, {0xDCDF, {0xFA, 0x5D}},
+	{0xDDC8, {0xFB, 0xA3}}, {0xDDD4, {0xFB, 0xA4}}, {0xDDEA, {0xFB, 0xA5}},
+	{0xDDFA, {0xFB, 0xA6}}, {0xDEA4, {0xFB, 0xA7}}, {0xDEB0, {0xFB, 0xA8}},
+	{0xDEB5, {0xFB, 0xAA}}, {0xDECB, {0xFB, 0xAB}}, {0xDFB9, {0xFB, 0xAD}},
+	{0xDFC3, {0xFB, 0xAF}}, {0xE0D9, {0xFB, 0xB2}}, {0xE1E2, {0xFB, 0xB5}},
+	{0xE2C7, {0xFB, 0xB9}}, {0xE3A6, {0xFB, 0xBB}}, {0xE3A8, {0xFB, 0xBA}},
+	{0xE3A9, {0xFB, 0xBC}}, {0xE3AA, {0xFB, 0xBF}}, {0xE3AB, {0xFB, 0xC0}},
+	{0xE3AF, {0xFB, 0xBD}}, {0xE3B0, {0xFB, 0xBE}}, {0xE3BC, {0xFB, 0xC1}},
+	{0xE3BF, {0xFB, 0xC3}}, {0xE3C1, {0xFB, 0xC2}}, {0xE3D4, {0xFB, 0xCA}},
+	{0xE3D5, {0xFB, 0xC4}}, {0xE3D6, {0xFB, 0xC6}}, {0xE3D8, {0xFB, 0xC5}},
+	{0xE3DF, {0xFB, 0xC7}}, {0xE3E1, {0xFB, 0xC9}}, {0xE3E3, {0xFB, 0xC8}},
+	{0xE3E9, {0xFB, 0xCB}}, {0xE3F1, {0xFB, 0xCD}}, {0xE3F2, {0xFB, 0xCE}},
+	{0xE3F8, {0xFA, 0x5F}}, {0xE4A6, {0xFB, 0xCC}}, {0xE4BE, {0xFB, 0xD2}},
+	{0xE4BF, {0xFB, 0xD6}}, {0xE4C0, {0xFB, 0xD4}}, {0xE4C1, {0xFB, 0xD0}},
+	{0xE4C3, {0xFB, 0xD1}}, {0xE4C7, {0xFB, 0xD5}}, {0xE4CB, {0xFB, 0xCF}},
+	{0xE4D0, {0xFA, 0x65}}, {0xE4D1, {0xFB, 0xD9}}, {0xE4D2, {0xFB, 0xDC}},
+	{0xE4D4, {0xFB, 0xDE}}, {0xE4DB, {0xFB, 0xDD}}, {0xE4DC, {0xFB, 0xDB}},
+	{0xE4DE, {0xFB, 0xD8}}, {0xE4E0, {0xFB, 0xD7}}, {0xE4E9, {0xFA, 0x5E}},
+	{0xE4EF, {0xFB, 0xE0}}, {0xE4FA, {0xFB, 0xDF}}, {0xE5B3, {0xFB, 0xE1}},
+	{0xE5BF, {0xFB, 0xE2}}, {0xE5C9, {0xFB, 0xE3}}, {0xE5D0, {0xFB, 0xE4}},
+	{0xE5E2, {0xFB, 0xE5}}, {0xE5EA, {0xFB, 0xE6}}, {0xE5EB, {0xFB, 0xE7}},
+	{0xE6E8, {0xFB, 0xEB}}, {0xE6EF, {0xFB, 0xEC}}, {0xE7AC, {0xFB, 0xED}},
+	{0xE7AE, {0xFB, 0xEF}}, {0xE7B1, {0xFB, 0xF1}}, {0xE7B2, {0xFB, 0xF3}},
+	{0xE8B1, {0xFB, 0xF4}}, {0xE8B6, {0xFB, 0xF5}}, {0xE8DD, {0xFB, 0xF8}},
+	{0xE9D1, {0xFB, 0xFB}}, {0xE9ED, {0xFC, 0x40}}, {0xEACD, {0xFC, 0x41}},
+	{0xEADB, {0xFC, 0x43}}, {0xEAE6, {0xFC, 0x44}}, {0xEAEA, {0xFC, 0x45}},
+	{0xEBA5, {0xFC, 0x46}}, {0xEBFA, {0xFC, 0x48}}, {0xEBFB, {0xFC, 0x47}},
+	{0xECD6, {0xFC, 0x4A}},
+};
+
+/* EUC to SJIS IBM extended characters map (G3 Upper block) */
+static unsigned char euc2sjisibm_g3upper_map[][2] = {
+	{0xFA, 0x40}, {0xFA, 0x41}, {0xFA, 0x42}, {0xFA, 0x43}, {0xFA, 0x44},
+	{0xFA, 0x45}, {0xFA, 0x46}, {0xFA, 0x47}, {0xFA, 0x48}, {0xFA, 0x49},
+	{0xFA, 0x4A}, {0xFA, 0x4B}, {0xFA, 0x4C}, {0xFA, 0x4D}, {0xFA, 0x4E},
+	{0xFA, 0x4F}, {0xFA, 0x50}, {0xFA, 0x51}, {0xFA, 0x52}, {0xFA, 0x53},
+	{0xFA, 0x56}, {0xFA, 0x57}, {0xFA, 0x58}, {0xFA, 0x59}, {0xFA, 0x5A},
+	{0xFA, 0x62}, {0xFA, 0x6A}, {0xFA, 0x7C}, {0xFA, 0x83}, {0xFA, 0x8A},
+	{0xFA, 0x8B}, {0xFA, 0x90}, {0xFA, 0x92}, {0xFA, 0x96}, {0xFA, 0x9B},
+	{0xFA, 0x9C}, {0xFA, 0x9D}, {0xFA, 0xAA}, {0xFA, 0xAE}, {0xFA, 0xB0},
+	{0xFA, 0xB1}, {0xFA, 0xBA}, {0xFA, 0xBD}, {0xFA, 0xC1}, {0xFA, 0xCD},
+	{0xFA, 0xD0}, {0xFA, 0xD5}, {0xFA, 0xD8}, {0xFA, 0xE0}, {0xFA, 0xE5},
+	{0xFA, 0xE8}, {0xFA, 0xEA}, {0xFA, 0xEE}, {0xFA, 0xF2}, {0xFB, 0x43},
+	{0xFB, 0x44}, {0xFB, 0x50}, {0xFB, 0x58}, {0xFB, 0x5E}, {0xFB, 0x6E},
+	{0xFB, 0x70}, {0xFB, 0x72}, {0xFB, 0x75}, {0xFB, 0x7C}, {0xFB, 0x7D},
+	{0xFB, 0x7E}, {0xFB, 0x80}, {0xFB, 0x82}, {0xFB, 0x85}, {0xFB, 0x86},
+	{0xFB, 0x89}, {0xFB, 0x8D}, {0xFB, 0x8E}, {0xFB, 0x92}, {0xFB, 0x94},
+	{0xFB, 0x9D}, {0xFB, 0x9E}, {0xFB, 0x9F}, {0xFB, 0xA0}, {0xFB, 0xA1},
+	{0xFB, 0xA9}, {0xFB, 0xAC}, {0xFB, 0xAE}, {0xFB, 0xB0}, {0xFB, 0xB1},
+	{0xFB, 0xB3}, {0xFB, 0xB4}, {0xFB, 0xB6}, {0xFB, 0xB7}, {0xFB, 0xB8},
+	{0xFB, 0xD3}, {0xFB, 0xDA}, {0xFB, 0xE8}, {0xFB, 0xE9}, {0xFB, 0xEA},
+	{0xFB, 0xEE}, {0xFB, 0xF0}, {0xFB, 0xF2}, {0xFB, 0xF6}, {0xFB, 0xF7},
+	{0xFB, 0xF9}, {0xFB, 0xFA}, {0xFB, 0xFC}, {0xFC, 0x42}, {0xFC, 0x49},
+	{0xFC, 0x4B},
+};
+
+#define MAP_ELEMENT_OF(map)	(sizeof(map) / sizeof(map[0]))
+
+static inline int sjisibm2euc(unsigned char *euc, const unsigned char sjis_hi,
+			      const unsigned char sjis_lo);
+static inline int euc2sjisibm_jisx0212(unsigned char *sjis, const unsigned char euc_hi,
+				       const unsigned char euc_lo);
+static inline int euc2sjisibm_g3upper(unsigned char *sjis, const unsigned char euc_hi,
+				      const unsigned char euc_lo);
+static inline int euc2sjisibm(unsigned char *sjis, const unsigned char euc_hi,
+			      const unsigned char euc_lo);
+static inline int sjisnec2sjisibm(unsigned char *sjisibm,
+				  const unsigned char sjisnec_hi,
+				  const unsigned char sjisnec_lo);
+
+/* SJIS IBM extended characters to EUC */
+static inline int sjisibm2euc(unsigned char *euc, const unsigned char sjis_hi,
+			      const unsigned char sjis_lo)
+{
+	int index;
+
+	index = ((sjis_hi - 0xFA) * (0xFD - 0x40)) + (sjis_lo - 0x40);
+	if (IS_EUC_IBM2JISX0208(sjisibm2euc_map[index][0],
+				sjisibm2euc_map[index][1])) {
+		euc[0] = sjisibm2euc_map[index][0];
+		euc[1] = sjisibm2euc_map[index][1];
+		return 2;
+	} else {
+		euc[0] = SS3;
+		euc[1] = sjisibm2euc_map[index][0];
+		euc[2] = sjisibm2euc_map[index][1];
+		return 3;
+	}
+}
+
+/* EUC to SJIS IBM extended characters (G3 JIS X 0212 block) */
+static inline int euc2sjisibm_jisx0212(unsigned char *sjis, const unsigned char euc_hi,
+				       const unsigned char euc_lo)
+{
+	int index, min_index, max_index;
+	unsigned short euc;
+
+	min_index = 0;
+	max_index = MAP_ELEMENT_OF(euc2sjisibm_jisx0212_map) - 1;
+	euc = (euc_hi << 8) | euc_lo;
+
+	while (min_index <= max_index) {
+		index = (min_index + max_index) / 2;
+		if (euc < euc2sjisibm_jisx0212_map[index].euc)
+			max_index = index - 1;
+		else
+			min_index = index + 1;
+		if (euc == euc2sjisibm_jisx0212_map[index].euc) {
+			sjis[0] = euc2sjisibm_jisx0212_map[index].sjis[0];
+			sjis[1] = euc2sjisibm_jisx0212_map[index].sjis[1];
+			return 3;
+		}
+	}
+	return 0;
+}
+
+/* EUC to SJIS IBM extended characters (G3 Upper block) */
+static inline int euc2sjisibm_g3upper(unsigned char *sjis, const unsigned char euc_hi,
+				      const unsigned char euc_lo)
+{
+	int index;
+
+	if (euc_hi == 0xF3)
+		index = ((euc_hi << 8) | euc_lo) - 0xF3F3;
+	else
+		index = ((euc_hi << 8) | euc_lo) - 0xF4A1 + 12;
+
+	if ((index < 0) || (index >= MAP_ELEMENT_OF(euc2sjisibm_g3upper_map)))
+		return 0;
+
+	sjis[0] = euc2sjisibm_g3upper_map[index][0];
+	sjis[1] = euc2sjisibm_g3upper_map[index][1];
+
+	return 3;
+}
+
+/* EUC to SJIS IBM extended characters (G3 block) */
+static inline int euc2sjisibm(unsigned char *sjis, const unsigned char euc_hi,
+			      const unsigned char euc_lo)
+{
+	int n;
+
+#if 0
+	if ((euc_hi == 0xA2) && (euc_lo == 0xCC)) {
+		sjis[0] = 0xFA;
+		sjis[1] = 0x54;
+		return 2;
+	} else if ((euc_hi == 0xA2) && (euc_lo == 0xE8)) {
+		sjis[0] = 0xFA;
+		sjis[1] = 0x5B;
+		return 2;
+	}
+#endif
+	if ((n = euc2sjisibm_g3upper(sjis, euc_hi, euc_lo))) {
+		return n;
+	} else if ((n = euc2sjisibm_jisx0212(sjis, euc_hi, euc_lo))) {
+		return n;
+	}
+
+	return 0;
+}
+
+/* NEC/IBM extended characters to IBM extended characters */
+static inline int sjisnec2sjisibm(unsigned char *sjisibm,
+				  const unsigned char sjisnec_hi,
+				  const unsigned char sjisnec_lo)
+{
+	int count;
+
+	if (! IS_SJIS_NECIBM(sjisnec_hi, sjisnec_lo))
+		return 0;
+
+	if ((sjisnec_hi == 0xEE) && (sjisnec_lo == 0xF9)) {
+		sjisibm[0] = 0x81;
+		sjisibm[1] = 0xCA;
+		return 2;
+	}
+
+	if ((sjisnec_hi == 0xEE) && (sjisnec_lo >= 0xEF)) {
+		count = (sjisnec_hi << 8 | sjisnec_lo)
+			- (sjisnec_lo <= 0xF9 ? 0xEEEF : (0xEEEF - 10));
+	} else {
+		count = (sjisnec_hi - 0xED) * (0xFC - 0x40)
+			+ (sjisnec_lo - 0x40) + (0x5C - 0x40);
+		if (sjisnec_lo >= 0x7F)
+			count--;
+	}
+
+	sjisibm[0] = 0xFA + (count / (0xFC - 0x40));
+	sjisibm[1] = 0x40 + (count % (0xFC - 0x40));
+	if (sjisibm[1] >= 0x7F)
+		sjisibm[1]++;
+
+	return 2;
+}
+
+static int uni2char(const wchar_t uni,
+		    unsigned char *out, int boundlen)
+{
+	int n;
+
+	if (!p_nls)
+		return -EINVAL;
+	if ((n = p_nls->uni2char(uni, out, boundlen)) < 0)
+		return n;
+
+	/* translate SJIS into EUC-JP */
+	if (n == 1) {
+		if (IS_SJIS_JISX0201KANA(out[0])) {
+			/* JIS X 0201 KANA */
+			if (boundlen < 2)
+				return -ENAMETOOLONG;
+
+			out[1] = out[0];
+			out[0] = SS2;
+			return 2;
+		}
+	} else if (n == 2) {
+		/* NEC/IBM extended characters to IBM extended characters */
+		sjisnec2sjisibm(out, out[0], out[1]);
+
+		if (IS_SJIS_UDC_LOW(out[0], out[1])) {
+			/* User defined characters half low */
+			MAP_SJIS2EUC(out[0], out[1], 0xF0, out[0], out[1], 0xF5);
+		} else if (IS_SJIS_UDC_HI(out[0], out[1])) {
+			/* User defined characters half high */
+			unsigned char ch, cl;
+
+			if (boundlen < 3)
+				return -ENAMETOOLONG;
+
+			n = 3; ch = out[0]; cl = out[1];
+			out[0] = SS3;
+			MAP_SJIS2EUC(ch, cl, 0xF5, out[1], out[2], 0xF5);
+		} else if (IS_SJIS_IBM(out[0], out[1])) {
+			/* IBM extended characters */
+			unsigned char euc[3], i;
+
+			n = sjisibm2euc(euc, out[0], out[1]);
+			if (boundlen < n)
+				return -ENAMETOOLONG;
+			for (i = 0; i < n; i++)
+				out[i] = euc[i];
+		} else if (IS_SJIS_JISX0208(out[0], out[1])) {
+			/* JIS X 0208 (include NEC special characters) */
+			out[0] = (out[0]^0xA0)*2 + 0x5F;
+			if (out[1] > 0x9E)
+				out[0]++;
+
+			if (out[1] < 0x7F)
+				out[1] = out[1] + 0x61;
+			else if (out[1] < 0x9F)
+				out[1] = out[1] + 0x60;
+			else
+				out[1] = out[1] + 0x02;
+		} else {
+			/* Invalid characters */
+			return -EINVAL;
+		}
+	}
+	else
+		return -EINVAL;
+
+	return n;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen,
+		    wchar_t *uni)
+{
+	unsigned char sjis_temp[2];
+	int euc_offset, n;
+
+	if ( !p_nls )
+		return -EINVAL;
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	/* translate EUC-JP into SJIS */
+	if (rawstring[0] > 0x7F) {
+		if (rawstring[0] == SS3) {
+			if (boundlen < 3)
+				return -EINVAL;
+			euc_offset = 3;
+
+			if (IS_EUC_UDC_HI(rawstring[1], rawstring[2])) {
+				/* User defined characters half high */
+				MAP_EUC2SJIS(rawstring[1], rawstring[2], 0xF5,
+					     sjis_temp[0], sjis_temp[1], 0xF5);
+			} else if (euc2sjisibm(sjis_temp,rawstring[1],rawstring[2])) {
+				/* IBM extended characters */
+			} else {
+				/* JIS X 0212 and Invalid characters*/
+				return -EINVAL;
+
+				/* 'GETA' with SJIS coding */
+				/* sjis_temp[0] = 0x81; */
+				/* sjis_temp[1] = 0xAC; */
+			}
+		} else {
+			if (boundlen < 2)
+				return -EINVAL;
+			euc_offset = 2;
+
+			if (IS_EUC_JISX0201KANA(rawstring[0], rawstring[1])) {
+				/* JIS X 0201 KANA */
+				sjis_temp[0] = rawstring[1];
+				sjis_temp[1] = 0x00;
+			} else if (IS_EUC_UDC_LOW(rawstring[0], rawstring[1])) {
+				/* User defined characters half low */
+				MAP_EUC2SJIS(rawstring[0], rawstring[1], 0xF5,
+					     sjis_temp[0], sjis_temp[1], 0xF0);
+			} else if (IS_EUC_JISX0208(rawstring[0], rawstring[1])) {
+				/* JIS X 0208 (include NEC spesial characters) */
+				sjis_temp[0] = ((rawstring[0]-0x5f)/2) ^ 0xA0;
+				if (!(rawstring[0] & 1))
+					sjis_temp[1] = rawstring[1] - 0x02;
+				else if (rawstring[1] < 0xE0)
+					sjis_temp[1] = rawstring[1] - 0x61;
+				else
+					sjis_temp[1] = rawstring[1] - 0x60;
+			} else {
+				/* Invalid characters */
+				return -EINVAL;
+			}
+		}
+	} else {
+		euc_offset = 1;
+
+		/* JIS X 0201 ROMAJI */
+		sjis_temp[0] = rawstring[0];
+		sjis_temp[1] = 0x00;
+	}
+
+	if ( (n = p_nls->char2uni(sjis_temp, sizeof(sjis_temp), uni)) < 0)
+		return n;
+
+	return euc_offset;
+}
+
+static struct nls_table table = {
+	"euc-jp",
+	uni2char,
+	char2uni,
+	NULL,
+	NULL,
+	THIS_MODULE,
+};
+
+static int __init init_nls_euc_jp(void)
+{
+	p_nls = load_nls("cp932");
+
+	if (p_nls) {
+		table.charset2upper = p_nls->charset2upper;
+		table.charset2lower = p_nls->charset2lower;
+		return register_nls(&table);
+	}
+
+	return -EINVAL;
+}
+
+static void __exit exit_nls_euc_jp(void)
+{
+	unregister_nls(&table);
+	unload_nls(p_nls);
+}
+
+module_init(init_nls_euc_jp)
+module_exit(exit_nls_euc_jp)
+MODULE_LICENSE("Dual BSD/GPL");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ *
+---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
diff --git a/fs/nls/nls_euc-kr.c b/fs/nls/nls_euc-kr.c
new file mode 100644
index 00000000000000..e7b030aa0b9aef
--- /dev/null
+++ b/fs/nls/nls_euc-kr.c
@@ -0,0 +1,63 @@
+/*
+ * linux/fs/nls_euc-kr.c
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static struct nls_table *p_nls;
+
+static struct nls_table table = {
+	"euc-kr",
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	THIS_MODULE,
+};
+
+static int __init init_nls_euc_kr(void)
+{
+	p_nls = load_nls("cp949");
+
+	if (p_nls) {
+		table.uni2char = p_nls->uni2char;
+		table.char2uni = p_nls->char2uni;
+		table.charset2upper = p_nls->charset2upper;
+		table.charset2lower = p_nls->charset2lower;
+		return register_nls(&table);
+	}
+
+	return -EINVAL;
+}
+
+static void __exit exit_nls_euc_kr(void)
+{
+	unregister_nls(&table);
+	unload_nls(p_nls);
+}
+
+module_init(init_nls_euc_kr)
+module_exit(exit_nls_euc_kr)
+MODULE_LICENSE("Dual BSD/GPL");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ *
+---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
diff --git a/fs/nls/nls_gb2312.c b/fs/nls/nls_gb2312.c
new file mode 100644
index 00000000000000..dd64d84c377804
--- /dev/null
+++ b/fs/nls/nls_gb2312.c
@@ -0,0 +1,63 @@
+/*
+ * linux/fs/nls_gb2312.c
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static struct nls_table *p_nls;
+
+static struct nls_table table = {
+	"gb2312",
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	THIS_MODULE,
+};
+
+static int __init init_nls_gb2312(void)
+{
+	p_nls = load_nls("cp936");
+
+	if (p_nls) {
+		table.uni2char = p_nls->uni2char;
+		table.char2uni = p_nls->char2uni;
+		table.charset2upper = p_nls->charset2upper;
+		table.charset2lower = p_nls->charset2lower;
+		return register_nls(&table);
+	}
+
+	return -EINVAL;
+}
+
+static void __exit exit_nls_gb2312(void)
+{
+	unregister_nls(&table);
+	unload_nls(p_nls);
+}
+
+module_init(init_nls_gb2312)
+module_exit(exit_nls_gb2312)
+MODULE_LICENSE("Dual BSD/GPL");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ *
+---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
diff --git a/fs/nls/nls_iso8859-1.c b/fs/nls/nls_iso8859-1.c
new file mode 100644
index 00000000000000..9477f418a481a7
--- /dev/null
+++ b/fs/nls/nls_iso8859-1.c
@@ -0,0 +1,274 @@
+/*
+ * linux/fs/nls_iso8859-1.c
+ *
+ * Charset iso8859-1 translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	/* 0x90*/
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	/* 0xa0*/
+	0x00a0, 0x00a1, 0x00a2, 0x00a3,
+	0x00a4, 0x00a5, 0x00a6, 0x00a7,
+	0x00a8, 0x00a9, 0x00aa, 0x00ab,
+	0x00ac, 0x00ad, 0x00ae, 0x00af,
+	/* 0xb0*/
+	0x00b0, 0x00b1, 0x00b2, 0x00b3,
+	0x00b4, 0x00b5, 0x00b6, 0x00b7,
+	0x00b8, 0x00b9, 0x00ba, 0x00bb,
+	0x00bc, 0x00bd, 0x00be, 0x00bf,
+	/* 0xc0*/
+	0x00c0, 0x00c1, 0x00c2, 0x00c3,
+	0x00c4, 0x00c5, 0x00c6, 0x00c7,
+	0x00c8, 0x00c9, 0x00ca, 0x00cb,
+	0x00cc, 0x00cd, 0x00ce, 0x00cf,
+	/* 0xd0*/
+	0x00d0, 0x00d1, 0x00d2, 0x00d3,
+	0x00d4, 0x00d5, 0x00d6, 0x00d7,
+	0x00d8, 0x00d9, 0x00da, 0x00db,
+	0x00dc, 0x00dd, 0x00de, 0x00df,
+	/* 0xe0*/
+	0x00e0, 0x00e1, 0x00e2, 0x00e3,
+	0x00e4, 0x00e5, 0x00e6, 0x00e7,
+	0x00e8, 0x00e9, 0x00ea, 0x00eb,
+	0x00ec, 0x00ed, 0x00ee, 0x00ef,
+	/* 0xf0*/
+	0x00f0, 0x00f1, 0x00f2, 0x00f3,
+	0x00f4, 0x00f5, 0x00f6, 0x00f7,
+	0x00f8, 0x00f9, 0x00fa, 0x00fb,
+	0x00fc, 0x00fd, 0x00fe, 0x00ff,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xc0-0xc7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xc8-0xcf */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xd7, /* 0xd0-0xd7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0x00, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xe0-0xe7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xe8-0xef */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xf7, /* 0xf0-0xf7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0x00, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"iso8859-1",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_iso8859_1(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_iso8859_1(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_iso8859_1)
+module_exit(exit_nls_iso8859_1)
+MODULE_LICENSE("Dual BSD/GPL");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
diff --git a/fs/nls/nls_iso8859-13.c b/fs/nls/nls_iso8859-13.c
new file mode 100644
index 00000000000000..c8e626afc8b689
--- /dev/null
+++ b/fs/nls/nls_iso8859-13.c
@@ -0,0 +1,302 @@
+/*
+ * linux/fs/nls_iso8859-13.c
+ *
+ * Charset iso8859-13 translation tables.
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	/* 0x90*/
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	/* 0xa0*/
+	0x00a0, 0x201d, 0x00a2, 0x00a3,
+	0x00a4, 0x201e, 0x00a6, 0x00a7,
+	0x00d8, 0x00a9, 0x0156, 0x00ab,
+	0x00ac, 0x00ad, 0x00ae, 0x00c6,
+	/* 0xb0*/
+	0x00b0, 0x00b1, 0x00b2, 0x00b3,
+	0x201c, 0x00b5, 0x00b6, 0x00b7,
+	0x00f8, 0x00b9, 0x0157, 0x00bb,
+	0x00bc, 0x00bd, 0x00be, 0x00e6,
+	/* 0xc0*/
+	0x0104, 0x012e, 0x0100, 0x0106,
+	0x00c4, 0x00c5, 0x0118, 0x0112,
+	0x010c, 0x00c9, 0x0179, 0x0116,
+	0x0122, 0x0136, 0x012a, 0x013b,
+	/* 0xd0*/
+	0x0160, 0x0143, 0x0145, 0x00d3,
+	0x014c, 0x00d5, 0x00d6, 0x00d7,
+	0x0172, 0x0141, 0x015a, 0x016a,
+	0x00dc, 0x017b, 0x017d, 0x00df,
+	/* 0xe0*/
+	0x0105, 0x012f, 0x0101, 0x0107,
+	0x00e4, 0x00e5, 0x0119, 0x0113,
+	0x010d, 0x00e9, 0x017a, 0x0117,
+	0x0123, 0x0137, 0x012b, 0x013c,
+	/* 0xf0*/
+	0x0161, 0x0144, 0x0146, 0x00f3,
+	0x014d, 0x00f5, 0x00f6, 0x00f7,
+	0x0173, 0x0142, 0x015b, 0x016b,
+	0x00fc, 0x017c, 0x017e, 0x2019,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0x00, 0xa2, 0xa3, 0xa4, 0x00, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0x00, 0xa9, 0x00, 0xab, 0xac, 0xad, 0xae, 0x00, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0x00, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0x00, 0xb9, 0x00, 0xbb, 0xbc, 0xbd, 0xbe, 0x00, /* 0xb8-0xbf */
+	0x00, 0x00, 0x00, 0x00, 0xc4, 0xc5, 0xaf, 0x00, /* 0xc0-0xc7 */
+	0x00, 0xc9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+	0x00, 0x00, 0x00, 0xd3, 0x00, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xa8, 0x00, 0x00, 0x00, 0xdc, 0x00, 0x00, 0xdf, /* 0xd8-0xdf */
+	0x00, 0x00, 0x00, 0x00, 0xe4, 0xe5, 0xbf, 0x00, /* 0xe0-0xe7 */
+	0x00, 0xe9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+	0x00, 0x00, 0x00, 0xf3, 0x00, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xb8, 0x00, 0x00, 0x00, 0xfc, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static unsigned char page01[256] = {
+	0xc2, 0xe2, 0x00, 0x00, 0xc0, 0xe0, 0xc3, 0xe3, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xc8, 0xe8, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0xc7, 0xe7, 0x00, 0x00, 0xcb, 0xeb, /* 0x10-0x17 */
+	0xc6, 0xe6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0xcc, 0xec, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0xce, 0xee, 0x00, 0x00, 0xc1, 0xe1, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xcd, 0xed, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0xcf, 0xef, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0xd9, 0xf9, 0xd1, 0xf1, 0xd2, 0xf2, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0xd4, 0xf4, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xaa, 0xba, /* 0x50-0x57 */
+	0x00, 0x00, 0xda, 0xfa, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0xd0, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0xdb, 0xfb, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0xd8, 0xf8, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0xca, 0xea, 0xdd, 0xfd, 0xde, 0xfe, 0x00, /* 0x78-0x7f */
+};
+
+static unsigned char page20[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0xff, 0x00, 0x00, 0xb4, 0xa1, 0xa5, 0x00, /* 0x18-0x1f */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, page01,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	  NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	  NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	  NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	page20,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0xb1, 0xa2, 0xb3, 0xa4, 0xb5, 0xb6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xb9, 0xba, 0xbb, 0xbc, 0xad, 0xbe, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbf, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xc0-0xc7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xc8-0xcf */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xd7, /* 0xd0-0xd7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xa1, 0xb2, 0xa3, 0xb4, 0xa5, 0xa6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xa9, 0xaa, 0xab, 0xac, 0xbd, 0xae, 0xbd, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xe0-0xe7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xe8-0xef */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xf7, /* 0xf0-0xf7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"iso8859-13",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_iso8859_13(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_iso8859_13(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_iso8859_13)
+module_exit(exit_nls_iso8859_13)
+MODULE_LICENSE("Dual BSD/GPL");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
diff --git a/fs/nls/nls_iso8859-14.c b/fs/nls/nls_iso8859-14.c
new file mode 100644
index 00000000000000..6a032a2d0fbf6d
--- /dev/null
+++ b/fs/nls/nls_iso8859-14.c
@@ -0,0 +1,358 @@
+/*
+ * linux/fs/nls_iso8859-14.c
+ *
+ * Charset iso8859-14 translation tables.
+ *
+ * Generated automatically from the Unicode and charset table
+ * provided by the Unicode Organisation at
+ * http://www.unicode.org/
+ * The Unicode to charset table has only exact mappings.
+ *
+ * Rhys Jones, Swansea University Computer Society
+ * rhys@sucs.swan.ac.uk
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003, 
+	0x0004, 0x0005, 0x0006, 0x0007, 
+	0x0008, 0x0009, 0x000a, 0x000b, 
+	0x000c, 0x000d, 0x000e, 0x000f, 
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013, 
+	0x0014, 0x0015, 0x0016, 0x0017, 
+	0x0018, 0x0019, 0x001a, 0x001b, 
+	0x001c, 0x001d, 0x001e, 0x001f, 
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023, 
+	0x0024, 0x0025, 0x0026, 0x0027, 
+	0x0028, 0x0029, 0x002a, 0x002b, 
+	0x002c, 0x002d, 0x002e, 0x002f, 
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033, 
+	0x0034, 0x0035, 0x0036, 0x0037, 
+	0x0038, 0x0039, 0x003a, 0x003b, 
+	0x003c, 0x003d, 0x003e, 0x003f, 
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043, 
+	0x0044, 0x0045, 0x0046, 0x0047, 
+	0x0048, 0x0049, 0x004a, 0x004b, 
+	0x004c, 0x004d, 0x004e, 0x004f, 
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053, 
+	0x0054, 0x0055, 0x0056, 0x0057, 
+	0x0058, 0x0059, 0x005a, 0x005b, 
+	0x005c, 0x005d, 0x005e, 0x005f, 
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063, 
+	0x0064, 0x0065, 0x0066, 0x0067, 
+	0x0068, 0x0069, 0x006a, 0x006b, 
+	0x006c, 0x006d, 0x006e, 0x006f, 
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073, 
+	0x0074, 0x0075, 0x0076, 0x0077, 
+	0x0078, 0x0079, 0x007a, 0x007b, 
+	0x007c, 0x007d, 0x007e, 0x007f, 
+	/* 0x80*/
+	0x0000, 0x0000, 0x0000, 0x0000, 
+	0x0000, 0x0000, 0x0000, 0x0000, 
+	0x0000, 0x0000, 0x0000, 0x0000, 
+	0x0000, 0x0000, 0x0000, 0x0000, 
+	/* 0x90*/
+	0x0000, 0x0000, 0x0000, 0x0000, 
+	0x0000, 0x0000, 0x0000, 0x0000, 
+	0x0000, 0x0000, 0x0000, 0x0000, 
+	0x0000, 0x0000, 0x0000, 0x0000, 
+	/* 0xa0*/
+	0x00a0, 0x1e02, 0x1e03, 0x00a3, 
+	0x010a, 0x010b, 0x1e0a, 0x00a7, 
+	0x1e80, 0x00a9, 0x1e82, 0x1e0b, 
+	0x1ef2, 0x00ad, 0x00ae, 0x0178, 
+	/* 0xb0*/
+	0x1e1e, 0x1e1f, 0x0120, 0x0121, 
+	0x1e40, 0x1e41, 0x00b6, 0x1e56, 
+	0x1e81, 0x1e57, 0x1e83, 0x1e60, 
+	0x1ef3, 0x1e84, 0x1e85, 0x1e61, 
+	/* 0xc0*/
+	0x00c0, 0x00c1, 0x00c2, 0x00c3, 
+	0x00c4, 0x00c5, 0x00c6, 0x00c7, 
+	0x00c8, 0x00c9, 0x00ca, 0x00cb, 
+	0x00cc, 0x00cd, 0x00ce, 0x00cf, 
+	/* 0xd0*/
+	0x0174, 0x00d1, 0x00d2, 0x00d3, 
+	0x00d4, 0x00d5, 0x00d6, 0x1e6a, 
+	0x00d8, 0x00d9, 0x00da, 0x00db, 
+	0x00dc, 0x00dd, 0x0176, 0x00df, 
+	/* 0xe0*/
+	0x00e0, 0x00e1, 0x00e2, 0x00e3, 
+	0x00e4, 0x00e5, 0x00e6, 0x00e7, 
+	0x00e8, 0x00e9, 0x00ea, 0x00eb, 
+	0x00ec, 0x00ed, 0x00ee, 0x00ef, 
+	/* 0xf0*/
+	0x0175, 0x00f1, 0x00f2, 0x00f3, 
+	0x00f4, 0x00f5, 0x00f6, 0x1e6b, 
+	0x00f8, 0x00f9, 0x00fa, 0x00fb, 
+	0x00fc, 0x00fd, 0x0177, 0x00ff, 
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0x00, 0x00, 0xa3, 0x00, 0x00, 0x00, 0xa7, /* 0xa0-0xa7 */
+	0x00, 0xa9, 0x00, 0x00, 0x00, 0xad, 0xae, 0x00, /* 0xa8-0xaf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb6, 0x00, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0x00, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0x00, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0x00, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0x00, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0x00, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0x00, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char page01[256] = {
+	0x00, 0x00, 0xa1, 0xa2, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0xa6, 0xab, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb0, 0xb1, /* 0x18-0x1f */
+	0xb2, 0xb3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0xb4, 0xb5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb7, 0xb9, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0xbb, 0xbf, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0xd7, 0xf7, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0xd0, 0xf0, 0xde, 0xfe, /* 0x70-0x77 */
+	0xaf, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+	
+	0xa8, 0xb8, 0xaa, 0xba, 0xbd, 0xbe, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+	0x00, 0x00, 0xac, 0xbc, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static unsigned char page1e[256] = {
+	0x00, 0x00, 0xa1, 0xa2, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0xa6, 0xab, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb0, 0xb1, /* 0x18-0x1f */
+	0xb2, 0xb3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0xb4, 0xb5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb7, 0xb9, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0xbb, 0xbf, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0xd7, 0xf7, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0xd0, 0xf0, 0xde, 0xfe, /* 0x70-0x77 */
+	0xaf, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0xa8, 0xb8, 0xaa, 0xba, 0xbd, 0xbe, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+	0x00, 0x00, 0xac, 0xbc, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00,	page01, NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,
+
+	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,
+	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,	page1e,	NULL,
+
+	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,
+	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0xa2, 0xa2, 0xa3, 0xab, 0xab, 0xab, 0xa7, /* 0xa0-0xa7 */
+	0xb8, 0xa9, 0xba, 0xab, 0xbc, 0xad, 0xae, 0xff, /* 0xa8-0xaf */
+	0xb1, 0xb1, 0xb3, 0xb3, 0xb5, 0xb5, 0xb6, 0xb9, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbf, 0xbc, 0xbe, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xc0-0xc7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xc8-0xcf */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xd0-0xd7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa1, 0xa3, 0xa6, 0xa6, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xa6, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb0, 0xb2, 0xb2, 0xb4, 0xb4, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xa8, 0xb7, 0xaa, 0xbb, 0xac, 0xbd, 0xbd, 0xbb, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xe0-0xe7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xe8-0xef */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xf0-0xf7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xaf, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"iso8859-14",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_iso8859_14(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_iso8859_14(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_iso8859_14)
+module_exit(exit_nls_iso8859_14)
+MODULE_LICENSE("Dual BSD/GPL");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
diff --git a/fs/nls/nls_iso8859-15.c b/fs/nls/nls_iso8859-15.c
new file mode 100644
index 00000000000000..8cad93f099ae97
--- /dev/null
+++ b/fs/nls/nls_iso8859-15.c
@@ -0,0 +1,324 @@
+/*
+ * linux/fs/nls_iso8859-15.c
+ *
+ * Charset iso8859-15 translation tables.
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	/* 0x90*/
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	/* 0xa0*/
+	0x00a0, 0x00a1, 0x00a2, 0x00a3,
+	0x20ac, 0x00a5, 0x0160, 0x00a7,
+	0x0161, 0x00a9, 0x00aa, 0x00ab,
+	0x00ac, 0x00ad, 0x00ae, 0x00af,
+	/* 0xb0*/
+	0x00b0, 0x00b1, 0x00b2, 0x00b3,
+	0x017d, 0x00b5, 0x00b6, 0x00b7,
+	0x017e, 0x00b9, 0x00ba, 0x00bb,
+	0x0152, 0x0153, 0x0178, 0x00bf,
+	/* 0xc0*/
+	0x00c0, 0x00c1, 0x00c2, 0x00c3,
+	0x00c4, 0x00c5, 0x00c6, 0x00c7,
+	0x00c8, 0x00c9, 0x00ca, 0x00cb,
+	0x00cc, 0x00cd, 0x00ce, 0x00cf,
+	/* 0xd0*/
+	0x00d0, 0x00d1, 0x00d2, 0x00d3,
+	0x00d4, 0x00d5, 0x00d6, 0x00d7,
+	0x00d8, 0x00d9, 0x00da, 0x00db,
+	0x00dc, 0x00dd, 0x00de, 0x00df,
+	/* 0xe0*/
+	0x00e0, 0x00e1, 0x00e2, 0x00e3,
+	0x00e4, 0x00e5, 0x00e6, 0x00e7,
+	0x00e8, 0x00e9, 0x00ea, 0x00eb,
+	0x00ec, 0x00ed, 0x00ee, 0x00ef,
+	/* 0xf0*/
+	0x00f0, 0x00f1, 0x00f2, 0x00f3,
+	0x00f4, 0x00f5, 0x00f6, 0x00f7,
+	0x00f8, 0x00f9, 0x00fa, 0x00fb,
+	0x00fc, 0x00fd, 0x00fe, 0x00ff,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0x00, 0xa5, 0x00, 0xa7, /* 0xa0-0xa7 */
+	0x00, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0x00, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0x00, 0xb9, 0xba, 0xbb, 0x00, 0x00, 0x00, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char page01[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0xbc, 0xbd, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0xa6, 0xa8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0xbe, 0x00, 0x00, 0x00, 0x00, 0xb4, 0xb8, 0x00, /* 0x78-0x7f */
+};
+
+static unsigned char page20[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+	0x00, 0x00, 0x00, 0x00, 0xa4, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, page01,	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,
+
+	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,
+	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,
+
+	page20,	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,
+	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa8, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb8, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbd, 0xbd, 0xff, 0xbf, /* 0xb8-0xbf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xc0-0xc7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xc8-0xcf */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xd7, /* 0xd0-0xd7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa6, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0x00, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb4, 0xb9, 0xba, 0xbb, 0xbc, 0xbc, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xe0-0xe7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xe8-0xef */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xf7, /* 0xf0-0xf7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xbe, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"iso8859-15",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_iso8859_15(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_iso8859_15(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_iso8859_15)
+module_exit(exit_nls_iso8859_15)
+MODULE_LICENSE("Dual BSD/GPL");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
diff --git a/fs/nls/nls_iso8859-2.c b/fs/nls/nls_iso8859-2.c
new file mode 100644
index 00000000000000..597b658bb0ec80
--- /dev/null
+++ b/fs/nls/nls_iso8859-2.c
@@ -0,0 +1,325 @@
+/*
+ * linux/fs/nls_iso8859-2.c
+ *
+ * Charset iso8859-2 translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	/* 0x90*/
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	/* 0xa0*/
+	0x00a0, 0x0104, 0x02d8, 0x0141,
+	0x00a4, 0x013d, 0x015a, 0x00a7,
+	0x00a8, 0x0160, 0x015e, 0x0164,
+	0x0179, 0x00ad, 0x017d, 0x017b,
+	/* 0xb0*/
+	0x00b0, 0x0105, 0x02db, 0x0142,
+	0x00b4, 0x013e, 0x015b, 0x02c7,
+	0x00b8, 0x0161, 0x015f, 0x0165,
+	0x017a, 0x02dd, 0x017e, 0x017c,
+	/* 0xc0*/
+	0x0154, 0x00c1, 0x00c2, 0x0102,
+	0x00c4, 0x0139, 0x0106, 0x00c7,
+	0x010c, 0x00c9, 0x0118, 0x00cb,
+	0x011a, 0x00cd, 0x00ce, 0x010e,
+	/* 0xd0*/
+	0x0110, 0x0143, 0x0147, 0x00d3,
+	0x00d4, 0x0150, 0x00d6, 0x00d7,
+	0x0158, 0x016e, 0x00da, 0x0170,
+	0x00dc, 0x00dd, 0x0162, 0x00df,
+	/* 0xe0*/
+	0x0155, 0x00e1, 0x00e2, 0x0103,
+	0x00e4, 0x013a, 0x0107, 0x00e7,
+	0x010d, 0x00e9, 0x0119, 0x00eb,
+	0x011b, 0x00ed, 0x00ee, 0x010f,
+	/* 0xf0*/
+	0x0111, 0x0144, 0x0148, 0x00f3,
+	0x00f4, 0x0151, 0x00f6, 0x00f7,
+	0x0159, 0x016f, 0x00fa, 0x0171,
+	0x00fc, 0x00fd, 0x0163, 0x02d9,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0x00, 0x00, 0x00, 0xa4, 0x00, 0x00, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0x00, 0x00, 0x00, 0x00, 0xad, 0x00, 0x00, /* 0xa8-0xaf */
+	0xb0, 0x00, 0x00, 0x00, 0xb4, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+	0xb8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+	0x00, 0xc1, 0xc2, 0x00, 0xc4, 0x00, 0x00, 0xc7, /* 0xc0-0xc7 */
+	0x00, 0xc9, 0x00, 0xcb, 0x00, 0xcd, 0xce, 0x00, /* 0xc8-0xcf */
+	0x00, 0x00, 0x00, 0xd3, 0xd4, 0x00, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0x00, 0x00, 0xda, 0x00, 0xdc, 0xdd, 0x00, 0xdf, /* 0xd8-0xdf */
+	0x00, 0xe1, 0xe2, 0x00, 0xe4, 0x00, 0x00, 0xe7, /* 0xe0-0xe7 */
+	0x00, 0xe9, 0x00, 0xeb, 0x00, 0xed, 0xee, 0x00, /* 0xe8-0xef */
+	0x00, 0x00, 0x00, 0xf3, 0xf4, 0x00, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0x00, 0x00, 0xfa, 0x00, 0xfc, 0xfd, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static unsigned char page01[256] = {
+	0x00, 0x00, 0xc3, 0xe3, 0xa1, 0xb1, 0xc6, 0xe6, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xc8, 0xe8, 0xcf, 0xef, /* 0x08-0x0f */
+	0xd0, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0xca, 0xea, 0xcc, 0xec, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0xc5, 0xe5, 0x00, 0x00, 0xa5, 0xb5, 0x00, /* 0x38-0x3f */
+	0x00, 0xa3, 0xb3, 0xd1, 0xf1, 0x00, 0x00, 0xd2, /* 0x40-0x47 */
+	0xf2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0xd5, 0xf5, 0x00, 0x00, 0xc0, 0xe0, 0x00, 0x00, /* 0x50-0x57 */
+	0xd8, 0xf8, 0xa6, 0xb6, 0x00, 0x00, 0xaa, 0xba, /* 0x58-0x5f */
+	0xa9, 0xb9, 0xde, 0xfe, 0xab, 0xbb, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xd9, 0xf9, /* 0x68-0x6f */
+	0xdb, 0xfb, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0xac, 0xbc, 0xaf, 0xbf, 0xae, 0xbe, 0x00, /* 0x78-0x7f */
+};
+
+static unsigned char page02[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb7, /* 0xc0-0xc7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+	0xa2, 0xff, 0x00, 0xb2, 0x00, 0xbd, 0x00, 0x00, /* 0xd8-0xdf */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, page01, page02, NULL,   NULL,   NULL,   NULL,   NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0xb1, 0xa2, 0xb3, 0xa4, 0xb5, 0xb6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xb9, 0xba, 0xbb, 0xbc, 0xad, 0xbe, 0xbf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xc0-0xc7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xc8-0xcf */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xd7, /* 0xd0-0xd7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xa1, 0xb2, 0xa3, 0xb4, 0xa5, 0xa6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xa9, 0xaa, 0xab, 0xac, 0xbd, 0xae, 0xaf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xe0-0xe7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xe8-0xef */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xf7, /* 0xf0-0xf7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"iso8859-2",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_iso8859_2(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_iso8859_2(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_iso8859_2)
+module_exit(exit_nls_iso8859_2)
+MODULE_LICENSE("Dual BSD/GPL");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
diff --git a/fs/nls/nls_iso8859-3.c b/fs/nls/nls_iso8859-3.c
new file mode 100644
index 00000000000000..b49abeef466c46
--- /dev/null
+++ b/fs/nls/nls_iso8859-3.c
@@ -0,0 +1,325 @@
+/*
+ * linux/fs/nls_iso8859-3.c
+ *
+ * Charset iso8859-3 translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	/* 0x90*/
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	/* 0xa0*/
+	0x00a0, 0x0126, 0x02d8, 0x00a3,
+	0x00a4, 0x0000, 0x0124, 0x00a7,
+	0x00a8, 0x0130, 0x015e, 0x011e,
+	0x0134, 0x00ad, 0x0000, 0x017b,
+	/* 0xb0*/
+	0x00b0, 0x0127, 0x00b2, 0x00b3,
+	0x00b4, 0x00b5, 0x0125, 0x00b7,
+	0x00b8, 0x0131, 0x015f, 0x011f,
+	0x0135, 0x00bd, 0x0000, 0x017c,
+	/* 0xc0*/
+	0x00c0, 0x00c1, 0x00c2, 0x0000,
+	0x00c4, 0x010a, 0x0108, 0x00c7,
+	0x00c8, 0x00c9, 0x00ca, 0x00cb,
+	0x00cc, 0x00cd, 0x00ce, 0x00cf,
+	/* 0xd0*/
+	0x0000, 0x00d1, 0x00d2, 0x00d3,
+	0x00d4, 0x0120, 0x00d6, 0x00d7,
+	0x011c, 0x00d9, 0x00da, 0x00db,
+	0x00dc, 0x016c, 0x015c, 0x00df,
+	/* 0xe0*/
+	0x00e0, 0x00e1, 0x00e2, 0x0000,
+	0x00e4, 0x010b, 0x0109, 0x00e7,
+	0x00e8, 0x00e9, 0x00ea, 0x00eb,
+	0x00ec, 0x00ed, 0x00ee, 0x00ef,
+	/* 0xf0*/
+	0x0000, 0x00f1, 0x00f2, 0x00f3,
+	0x00f4, 0x0121, 0x00f6, 0x00f7,
+	0x011d, 0x00f9, 0x00fa, 0x00fb,
+	0x00fc, 0x016d, 0x015d, 0x02d9,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0x00, 0x00, 0xa3, 0xa4, 0x00, 0x00, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0x00, 0x00, 0x00, 0x00, 0xad, 0x00, 0x00, /* 0xa8-0xaf */
+	0xb0, 0x00, 0xb2, 0xb3, 0xb4, 0xb5, 0x00, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0x00, 0x00, 0x00, 0x00, 0xbd, 0x00, 0x00, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0x00, 0xc4, 0x00, 0x00, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0x00, 0xd1, 0xd2, 0xd3, 0xd4, 0x00, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0x00, 0xd9, 0xda, 0xdb, 0xdc, 0x00, 0x00, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0x00, 0xe4, 0x00, 0x00, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0x00, 0xf1, 0xf2, 0xf3, 0xf4, 0x00, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0x00, 0xf9, 0xfa, 0xfb, 0xfc, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static unsigned char page01[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0xc6, 0xe6, 0xc5, 0xe5, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0xd8, 0xf8, 0xab, 0xbb, /* 0x18-0x1f */
+	0xd5, 0xf5, 0x00, 0x00, 0xa6, 0xb6, 0xa1, 0xb1, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0xa9, 0xb9, 0x00, 0x00, 0xac, 0xbc, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0xde, 0xfe, 0xaa, 0xba, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0xdd, 0xfd, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0xaf, 0xbf, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+};
+
+static unsigned char page02[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+	0xa2, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, page01, page02, NULL,   NULL,   NULL,   NULL,   NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0xb1, 0xa2, 0xa3, 0xa4, 0x00, 0xb6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0x69, 0xba, 0xbb, 0xbc, 0xad, 0x00, 0xbf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0x00, 0xbf, /* 0xb8-0xbf */
+	0xe0, 0xe1, 0xe2, 0x00, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xc0-0xc7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xc8-0xcf */
+	0x00, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xd7, /* 0xd0-0xd7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0x00, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0x00, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0x00, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0x00, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xa1, 0xb2, 0xb3, 0xb4, 0x00, 0xa6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0x49, 0xaa, 0xab, 0xac, 0xbd, 0x00, 0xaf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0x00, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0x00, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xc0, 0xc1, 0xc2, 0x00, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xe0-0xe7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xe8-0xef */
+	0x00, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xf7, /* 0xf0-0xf7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"iso8859-3",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_iso8859_3(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_iso8859_3(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_iso8859_3)
+module_exit(exit_nls_iso8859_3)
+MODULE_LICENSE("Dual BSD/GPL");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
diff --git a/fs/nls/nls_iso8859-4.c b/fs/nls/nls_iso8859-4.c
new file mode 100644
index 00000000000000..7f263e3f3fe495
--- /dev/null
+++ b/fs/nls/nls_iso8859-4.c
@@ -0,0 +1,325 @@
+/*
+ * linux/fs/nls_iso8859-4.c
+ *
+ * Charset iso8859-4 translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	/* 0x90*/
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	/* 0xa0*/
+	0x00a0, 0x0104, 0x0138, 0x0156,
+	0x00a4, 0x0128, 0x013b, 0x00a7,
+	0x00a8, 0x0160, 0x0112, 0x0122,
+	0x0166, 0x00ad, 0x017d, 0x00af,
+	/* 0xb0*/
+	0x00b0, 0x0105, 0x02db, 0x0157,
+	0x00b4, 0x0129, 0x013c, 0x02c7,
+	0x00b8, 0x0161, 0x0113, 0x0123,
+	0x0167, 0x014a, 0x017e, 0x014b,
+	/* 0xc0*/
+	0x0100, 0x00c1, 0x00c2, 0x00c3,
+	0x00c4, 0x00c5, 0x00c6, 0x012e,
+	0x010c, 0x00c9, 0x0118, 0x00cb,
+	0x0116, 0x00cd, 0x00ce, 0x012a,
+	/* 0xd0*/
+	0x0110, 0x0145, 0x014c, 0x0136,
+	0x00d4, 0x00d5, 0x00d6, 0x00d7,
+	0x00d8, 0x0172, 0x00da, 0x00db,
+	0x00dc, 0x0168, 0x016a, 0x00df,
+	/* 0xe0*/
+	0x0101, 0x00e1, 0x00e2, 0x00e3,
+	0x00e4, 0x00e5, 0x00e6, 0x012f,
+	0x010d, 0x00e9, 0x0119, 0x00eb,
+	0x0117, 0x00ed, 0x00ee, 0x012b,
+	/* 0xf0*/
+	0x0111, 0x0146, 0x014d, 0x0137,
+	0x00f4, 0x00f5, 0x00f6, 0x00f7,
+	0x00f8, 0x0173, 0x00fa, 0x00fb,
+	0x00fc, 0x0169, 0x016b, 0x02d9,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0x00, 0x00, 0x00, 0xa4, 0x00, 0x00, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0x00, 0x00, 0x00, 0x00, 0xad, 0x00, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0x00, 0x00, 0x00, 0xb4, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+	0xb8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+	0x00, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0x00, /* 0xc0-0xc7 */
+	0x00, 0xc9, 0x00, 0xcb, 0x00, 0xcd, 0xce, 0x00, /* 0xc8-0xcf */
+	0x00, 0x00, 0x00, 0x00, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0x00, 0xda, 0xdb, 0xdc, 0x00, 0x00, 0xdf, /* 0xd8-0xdf */
+	0x00, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0x00, /* 0xe0-0xe7 */
+	0x00, 0xe9, 0x00, 0xeb, 0x00, 0xed, 0xee, 0x00, /* 0xe8-0xef */
+	0x00, 0x00, 0x00, 0x00, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0x00, 0xfa, 0xfb, 0xfc, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static unsigned char page01[256] = {
+	0xc0, 0xe0, 0x00, 0x00, 0xa1, 0xb1, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xc8, 0xe8, 0x00, 0x00, /* 0x08-0x0f */
+	0xd0, 0xf0, 0xaa, 0xba, 0x00, 0x00, 0xcc, 0xec, /* 0x10-0x17 */
+	0xca, 0xea, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0xab, 0xbb, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0xa5, 0xb5, 0xcf, 0xef, 0x00, 0x00, 0xc7, 0xe7, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xd3, 0xf3, /* 0x30-0x37 */
+	0xa2, 0x00, 0x00, 0xa6, 0xb6, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0xd1, 0xf1, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0xbd, 0xbf, 0xd2, 0xf2, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa3, 0xb3, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0xa9, 0xb9, 0x00, 0x00, 0x00, 0x00, 0xac, 0xbc, /* 0x60-0x67 */
+	0xdd, 0xfd, 0xde, 0xfe, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0xd9, 0xf9, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0xae, 0xbe, 0x00, /* 0x78-0x7f */
+};
+
+static unsigned char page02[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb7, /* 0xc0-0xc7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+	0x00, 0xff, 0x00, 0xb2, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, page01, page02, NULL,   NULL,   NULL,   NULL,   NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0xb1, 0xa2, 0xb3, 0xa4, 0xb5, 0xb6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xb9, 0xba, 0xbb, 0xbc, 0xad, 0xbe, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbf, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xc0-0xc7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xc8-0xcf */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xd7, /* 0xd0-0xd7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xa1, 0xb2, 0xa3, 0xb4, 0xa5, 0xa6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xa9, 0xaa, 0xab, 0xac, 0xbd, 0xae, 0xbd, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xe0-0xe7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xe8-0xef */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xf7, /* 0xf0-0xf7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"iso8859-4",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_iso8859_4(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_iso8859_4(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_iso8859_4)
+module_exit(exit_nls_iso8859_4)
+MODULE_LICENSE("Dual BSD/GPL");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
diff --git a/fs/nls/nls_iso8859-5.c b/fs/nls/nls_iso8859-5.c
new file mode 100644
index 00000000000000..0edba68882877a
--- /dev/null
+++ b/fs/nls/nls_iso8859-5.c
@@ -0,0 +1,289 @@
+/*
+ * linux/fs/nls_iso8859-5.c
+ *
+ * Charset iso8859-5 translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	/* 0x90*/
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	/* 0xa0*/
+	0x00a0, 0x0401, 0x0402, 0x0403,
+	0x0404, 0x0405, 0x0406, 0x0407,
+	0x0408, 0x0409, 0x040a, 0x040b,
+	0x040c, 0x00ad, 0x040e, 0x040f,
+	/* 0xb0*/
+	0x0410, 0x0411, 0x0412, 0x0413,
+	0x0414, 0x0415, 0x0416, 0x0417,
+	0x0418, 0x0419, 0x041a, 0x041b,
+	0x041c, 0x041d, 0x041e, 0x041f,
+	/* 0xc0*/
+	0x0420, 0x0421, 0x0422, 0x0423,
+	0x0424, 0x0425, 0x0426, 0x0427,
+	0x0428, 0x0429, 0x042a, 0x042b,
+	0x042c, 0x042d, 0x042e, 0x042f,
+	/* 0xd0*/
+	0x0430, 0x0431, 0x0432, 0x0433,
+	0x0434, 0x0435, 0x0436, 0x0437,
+	0x0438, 0x0439, 0x043a, 0x043b,
+	0x043c, 0x043d, 0x043e, 0x043f,
+	/* 0xe0*/
+	0x0440, 0x0441, 0x0442, 0x0443,
+	0x0444, 0x0445, 0x0446, 0x0447,
+	0x0448, 0x0449, 0x044a, 0x044b,
+	0x044c, 0x044d, 0x044e, 0x044f,
+	/* 0xf0*/
+	0x2116, 0x0451, 0x0452, 0x0453,
+	0x0454, 0x0455, 0x0456, 0x0457,
+	0x0458, 0x0459, 0x045a, 0x045b,
+	0x045c, 0x00a7, 0x045e, 0x045f,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfd, /* 0xa0-0xa7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0xad, 0x00, 0x00, /* 0xa8-0xaf */
+};
+
+static unsigned char page04[256] = {
+	0x00, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0x00-0x07 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0x00, 0xae, 0xaf, /* 0x08-0x0f */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0x10-0x17 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0x18-0x1f */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0x20-0x27 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0x28-0x2f */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0x30-0x37 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0x38-0x3f */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0x40-0x47 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0x48-0x4f */
+	0x00, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0x50-0x57 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0x00, 0xfe, 0xff, /* 0x58-0x5f */
+};
+
+static unsigned char page21[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf0, 0x00, /* 0x10-0x17 */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, NULL,   NULL,   NULL,   page04, NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   page21, NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xa0-0xa7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xad, 0xfe, 0xff, /* 0xa8-0xaf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xb0-0xb7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xb8-0xbf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xc0-0xc7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xd0-0xd7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xd8-0xdf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xe0-0xe7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xe8-0xef */
+	0xf0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xf0-0xf7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xfd, 0xae, 0xaf, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"iso8859-5",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_iso8859_5(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_iso8859_5(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_iso8859_5)
+module_exit(exit_nls_iso8859_5)
+MODULE_LICENSE("Dual BSD/GPL");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
diff --git a/fs/nls/nls_iso8859-6.c b/fs/nls/nls_iso8859-6.c
new file mode 100644
index 00000000000000..403b59cf0933b2
--- /dev/null
+++ b/fs/nls/nls_iso8859-6.c
@@ -0,0 +1,280 @@
+/*
+ * linux/fs/nls_iso8859-6.c
+ *
+ * Charset iso8859-6 translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0660, 0x0661, 0x0662, 0x0663,
+	0x0664, 0x0665, 0x0666, 0x0667,
+	0x0668, 0x0669, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	/* 0x90*/
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	/* 0xa0*/
+	0x00a0, 0x0000, 0x0000, 0x0000,
+	0x00a4, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x060c, 0x00ad, 0x0000, 0x0000,
+	/* 0xb0*/
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x061b,
+	0x0000, 0x0000, 0x0000, 0x061f,
+	/* 0xc0*/
+	0x0000, 0x0621, 0x0622, 0x0623,
+	0x0624, 0x0625, 0x0626, 0x0627,
+	0x0628, 0x0629, 0x062a, 0x062b,
+	0x062c, 0x062d, 0x062e, 0x062f,
+	/* 0xd0*/
+	0x0630, 0x0631, 0x0632, 0x0633,
+	0x0634, 0x0635, 0x0636, 0x0637,
+	0x0638, 0x0639, 0x063a, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	/* 0xe0*/
+	0x0640, 0x0641, 0x0642, 0x0643,
+	0x0644, 0x0645, 0x0646, 0x0647,
+	0x0648, 0x0649, 0x064a, 0x064b,
+	0x064c, 0x064d, 0x064e, 0x064f,
+	/* 0xf0*/
+	0x0650, 0x0651, 0x0652, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0x00, 0x00, 0x00, 0xa4, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0xad, 0x00, 0x00, /* 0xa8-0xaf */
+};
+
+static unsigned char page06[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0xac, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0xbb, 0x00, 0x00, 0x00, 0xbf, /* 0x18-0x1f */
+	0x00, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0x20-0x27 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0x28-0x2f */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0x30-0x37 */
+	0xd8, 0xd9, 0xda, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0x40-0x47 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0x48-0x4f */
+	0xf0, 0xf1, 0xf2, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x60-0x67 */
+	0x38, 0x39, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, NULL,   NULL,   NULL,   NULL,   NULL,   page06, NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0x00, 0x00, 0x00, 0xa4, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+	0x00, 0x00, 0x00, 0x00, 0xac, 0xad, 0x00, 0x00, /* 0xa8-0xaf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0xbb, 0x00, 0x00, 0x00, 0xbf, /* 0xb8-0xbf */
+	0x00, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0x00, 0x00, 0x00, 0xa4, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+	0x00, 0x00, 0x00, 0x00, 0xac, 0xad, 0x00, 0x00, /* 0xa8-0xaf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0xbb, 0x00, 0x00, 0x00, 0xbf, /* 0xb8-0xbf */
+	0x00, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"iso8859-6",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_iso8859_6(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_iso8859_6(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_iso8859_6)
+module_exit(exit_nls_iso8859_6)
+MODULE_LICENSE("Dual BSD/GPL");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
diff --git a/fs/nls/nls_iso8859-7.c b/fs/nls/nls_iso8859-7.c
new file mode 100644
index 00000000000000..6dd6d55c448275
--- /dev/null
+++ b/fs/nls/nls_iso8859-7.c
@@ -0,0 +1,334 @@
+/*
+ * linux/fs/nls_iso8859-7.c
+ *
+ * Charset iso8859-7 translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	/* 0x90*/
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	/* 0xa0*/
+	0x00a0, 0x02bd, 0x02bc, 0x00a3,
+	0x0000, 0x0000, 0x00a6, 0x00a7,
+	0x00a8, 0x00a9, 0x0000, 0x00ab,
+	0x00ac, 0x00ad, 0x0000, 0x2015,
+	/* 0xb0*/
+	0x00b0, 0x00b1, 0x00b2, 0x00b3,
+	0x0384, 0x0385, 0x0386, 0x00b7,
+	0x0388, 0x0389, 0x038a, 0x00bb,
+	0x038c, 0x00bd, 0x038e, 0x038f,
+	/* 0xc0*/
+	0x0390, 0x0391, 0x0392, 0x0393,
+	0x0394, 0x0395, 0x0396, 0x0397,
+	0x0398, 0x0399, 0x039a, 0x039b,
+	0x039c, 0x039d, 0x039e, 0x039f,
+	/* 0xd0*/
+	0x03a0, 0x03a1, 0x0000, 0x03a3,
+	0x03a4, 0x03a5, 0x03a6, 0x03a7,
+	0x03a8, 0x03a9, 0x03aa, 0x03ab,
+	0x03ac, 0x03ad, 0x03ae, 0x03af,
+	/* 0xe0*/
+	0x03b0, 0x03b1, 0x03b2, 0x03b3,
+	0x03b4, 0x03b5, 0x03b6, 0x03b7,
+	0x03b8, 0x03b9, 0x03ba, 0x03bb,
+	0x03bc, 0x03bd, 0x03be, 0x03bf,
+	/* 0xf0*/
+	0x03c0, 0x03c1, 0x03c2, 0x03c3,
+	0x03c4, 0x03c5, 0x03c6, 0x03c7,
+	0x03c8, 0x03c9, 0x03ca, 0x03cb,
+	0x03cc, 0x03cd, 0x03ce, 0x0000,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0x00, 0x00, 0xa3, 0x00, 0x00, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0x00, 0xab, 0xac, 0xad, 0x00, 0x00, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0x00, 0x00, 0x00, 0xb7, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0xbb, 0x00, 0xbd, 0x00, 0x00, /* 0xb8-0xbf */
+};
+
+static unsigned char page02[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0x00, 0xa2, 0xa1, 0x00, 0x00, /* 0xb8-0xbf */
+};
+
+static unsigned char page03[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0xb4, 0xb5, 0xb6, 0x00, /* 0x80-0x87 */
+	0xb8, 0xb9, 0xba, 0x00, 0xbc, 0x00, 0xbe, 0xbf, /* 0x88-0x8f */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0x90-0x97 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0x98-0x9f */
+	0xd0, 0xd1, 0x00, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xa0-0xa7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xa8-0xaf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xb0-0xb7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xb8-0xbf */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xc0-0xc7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0x00, /* 0xc8-0xcf */
+};
+
+static unsigned char page20[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0xaf, 0x00, 0x00, /* 0x10-0x17 */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, NULL,   page02, page03, NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	page20, NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0x00, 0x00, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0x00, 0xab, 0xac, 0xad, 0x00, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xdc, 0xb7, /* 0xb0-0xb7 */
+	0xdd, 0xde, 0xdf, 0xbb, 0xfc, 0xbd, 0xfd, 0xfe, /* 0xb8-0xbf */
+	0xc0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xc0-0xc7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xc8-0xcf */
+	0xf0, 0xf1, 0x00, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xd0-0xd7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0x00, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0x00, 0x00, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0x00, 0xab, 0xac, 0xad, 0x00, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0x00, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xb6, 0xb8, 0xb9, 0xba, /* 0xd8-0xdf */
+	0xe0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xe0-0xe7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xe8-0xef */
+	0xd0, 0xd1, 0xd3, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xf0-0xf7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xbc, 0xbe, 0xbf, 0x00, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"iso8859-7",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_iso8859_7(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_iso8859_7(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_iso8859_7)
+module_exit(exit_nls_iso8859_7)
+MODULE_LICENSE("Dual BSD/GPL");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
diff --git a/fs/nls/nls_iso8859-8.c b/fs/nls/nls_iso8859-8.c
new file mode 100644
index 00000000000000..3005f680928f22
--- /dev/null
+++ b/fs/nls/nls_iso8859-8.c
@@ -0,0 +1,63 @@
+/*
+ * linux/fs/nls_iso8859-8.c
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static struct nls_table *p_nls;
+
+static struct nls_table table = {
+	"iso8859-8",
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	THIS_MODULE,
+};
+
+static int __init init_nls_iso8859_8(void)
+{
+	p_nls = load_nls("cp1255");
+
+	if (p_nls) {
+		table.uni2char = p_nls->uni2char;
+		table.char2uni = p_nls->char2uni;
+		table.charset2upper = p_nls->charset2upper;
+		table.charset2lower = p_nls->charset2lower;
+		return register_nls(&table);
+	}
+
+	return -EINVAL;
+}
+
+static void __exit exit_nls_iso8859_8(void)
+{
+	unregister_nls(&table);
+	unload_nls(p_nls);
+}
+
+module_init(init_nls_iso8859_8)
+module_exit(exit_nls_iso8859_8)
+MODULE_LICENSE("Dual BSD/GPL");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ *
+---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
diff --git a/fs/nls/nls_iso8859-9.c b/fs/nls/nls_iso8859-9.c
new file mode 100644
index 00000000000000..dfc813e0a11637
--- /dev/null
+++ b/fs/nls/nls_iso8859-9.c
@@ -0,0 +1,289 @@
+/*
+ * linux/fs/nls_iso8859-9.c
+ *
+ * Charset iso8859-9 translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	/* 0x90*/
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	/* 0xa0*/
+	0x00a0, 0x00a1, 0x00a2, 0x00a3,
+	0x00a4, 0x00a5, 0x00a6, 0x00a7,
+	0x00a8, 0x00a9, 0x00aa, 0x00ab,
+	0x00ac, 0x00ad, 0x00ae, 0x00af,
+	/* 0xb0*/
+	0x00b0, 0x00b1, 0x00b2, 0x00b3,
+	0x00b4, 0x00b5, 0x00b6, 0x00b7,
+	0x00b8, 0x00b9, 0x00ba, 0x00bb,
+	0x00bc, 0x00bd, 0x00be, 0x00bf,
+	/* 0xc0*/
+	0x00c0, 0x00c1, 0x00c2, 0x00c3,
+	0x00c4, 0x00c5, 0x00c6, 0x00c7,
+	0x00c8, 0x00c9, 0x00ca, 0x00cb,
+	0x00cc, 0x00cd, 0x00ce, 0x00cf,
+	/* 0xd0*/
+	0x011e, 0x00d1, 0x00d2, 0x00d3,
+	0x00d4, 0x00d5, 0x00d6, 0x00d7,
+	0x00d8, 0x00d9, 0x00da, 0x00db,
+	0x00dc, 0x0130, 0x015e, 0x00df,
+	/* 0xe0*/
+	0x00e0, 0x00e1, 0x00e2, 0x00e3,
+	0x00e4, 0x00e5, 0x00e6, 0x00e7,
+	0x00e8, 0x00e9, 0x00ea, 0x00eb,
+	0x00ec, 0x00ed, 0x00ee, 0x00ef,
+	/* 0xf0*/
+	0x011f, 0x00f1, 0x00f2, 0x00f3,
+	0x00f4, 0x00f5, 0x00f6, 0x00f7,
+	0x00f8, 0x00f9, 0x00fa, 0x00fb,
+	0x00fc, 0x0131, 0x015f, 0x00ff,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0x00, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0x00, 0x00, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0x00, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0x00, 0x00, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char page01[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xd0, 0xf0, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0xdd, 0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xde, 0xfe, /* 0x58-0x5f */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, page01, NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xc0-0xc7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xc8-0xcf */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xd7, /* 0xd0-0xd7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0x69, 0xfe, 0xdf, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0x00, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xe0-0xe7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xe8-0xef */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xf7, /* 0xf0-0xf7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0x49, 0xde, 0x00, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"iso8859-9",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_iso8859_9(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_iso8859_9(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_iso8859_9)
+module_exit(exit_nls_iso8859_9)
+MODULE_LICENSE("Dual BSD/GPL");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
diff --git a/fs/nls/nls_koi8-r.c b/fs/nls/nls_koi8-r.c
new file mode 100644
index 00000000000000..5889f1f7da1c20
--- /dev/null
+++ b/fs/nls/nls_koi8-r.c
@@ -0,0 +1,340 @@
+/*
+ * linux/fs/nls_koi8-r.c
+ *
+ * Charset koi8-r translation tables.
+ * Generated automatically from the Unicode and charset
+ * tables from the Unicode Organization (www.unicode.org).
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x2500, 0x2502, 0x250c, 0x2510,
+	0x2514, 0x2518, 0x251c, 0x2524,
+	0x252c, 0x2534, 0x253c, 0x2580,
+	0x2584, 0x2588, 0x258c, 0x2590,
+	/* 0x90*/
+	0x2591, 0x2592, 0x2593, 0x2320,
+	0x25a0, 0x2219, 0x221a, 0x2248,
+	0x2264, 0x2265, 0x00a0, 0x2321,
+	0x00b0, 0x00b2, 0x00b7, 0x00f7,
+	/* 0xa0*/
+	0x2550, 0x2551, 0x2552, 0x0451,
+	0x2553, 0x2554, 0x2555, 0x2556,
+	0x2557, 0x2558, 0x2559, 0x255a,
+	0x255b, 0x255c, 0x255d, 0x255e,
+	/* 0xb0*/
+	0x255f, 0x2560, 0x2561, 0x0401,
+	0x2562, 0x2563, 0x2564, 0x2565,
+	0x2566, 0x2567, 0x2568, 0x2569,
+	0x256a, 0x256b, 0x256c, 0x00a9,
+	/* 0xc0*/
+	0x044e, 0x0430, 0x0431, 0x0446,
+	0x0434, 0x0435, 0x0444, 0x0433,
+	0x0445, 0x0438, 0x0439, 0x043a,
+	0x043b, 0x043c, 0x043d, 0x043e,
+	/* 0xd0*/
+	0x043f, 0x044f, 0x0440, 0x0441,
+	0x0442, 0x0443, 0x0436, 0x0432,
+	0x044c, 0x044b, 0x0437, 0x0448,
+	0x044d, 0x0449, 0x0447, 0x044a,
+	/* 0xe0*/
+	0x042e, 0x0410, 0x0411, 0x0426,
+	0x0414, 0x0415, 0x0424, 0x0413,
+	0x0425, 0x0418, 0x0419, 0x041a,
+	0x041b, 0x041c, 0x041d, 0x041e,
+	/* 0xf0*/
+	0x041f, 0x042f, 0x0420, 0x0421,
+	0x0422, 0x0423, 0x0416, 0x0412,
+	0x042c, 0x042b, 0x0417, 0x0428,
+	0x042d, 0x0429, 0x0427, 0x042a,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x9a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+	0x00, 0xbf, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+	0x9c, 0x00, 0x9d, 0x00, 0x00, 0x00, 0x00, 0x9e, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9f, /* 0xf0-0xf7 */
+};
+
+static unsigned char page04[256] = {
+	0x00, 0xb3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0xe1, 0xe2, 0xf7, 0xe7, 0xe4, 0xe5, 0xf6, 0xfa, /* 0x10-0x17 */
+	0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, 0xf0, /* 0x18-0x1f */
+	0xf2, 0xf3, 0xf4, 0xf5, 0xe6, 0xe8, 0xe3, 0xfe, /* 0x20-0x27 */
+	0xfb, 0xfd, 0xff, 0xf9, 0xf8, 0xfc, 0xe0, 0xf1, /* 0x28-0x2f */
+	0xc1, 0xc2, 0xd7, 0xc7, 0xc4, 0xc5, 0xd6, 0xda, /* 0x30-0x37 */
+	0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0, /* 0x38-0x3f */
+	0xd2, 0xd3, 0xd4, 0xd5, 0xc6, 0xc8, 0xc3, 0xde, /* 0x40-0x47 */
+	0xdb, 0xdd, 0xdf, 0xd9, 0xd8, 0xdc, 0xc0, 0xd1, /* 0x48-0x4f */
+	0x00, 0xa3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+};
+
+static unsigned char page22[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x95, 0x96, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x97, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x98, 0x99, 0x00, 0x00, /* 0x60-0x67 */
+};
+
+static unsigned char page23[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x93, 0x9b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+};
+
+static unsigned char page25[256] = {
+	0x80, 0x00, 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x82, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x83, 0x00, 0x00, 0x00, 0x84, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x85, 0x00, 0x00, 0x00, 0x86, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x87, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x88, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x8a, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0xa0, 0xa1, 0xa2, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, /* 0x50-0x57 */
+	0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xb0, /* 0x58-0x5f */
+	0xb1, 0xb2, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, /* 0x60-0x67 */
+	0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x8b, 0x00, 0x00, 0x00, 0x8c, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x8d, 0x00, 0x00, 0x00, 0x8e, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x8f, 0x90, 0x91, 0x92, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x94, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, NULL,   NULL,   NULL,   page04, NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   page22, page23, NULL,   page25, NULL,   NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xa3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xe0-0xe7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xe8-0xef */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xf0-0xf7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xb3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xc0-0xc7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xc8-0xcf */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xd0-0xd7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"koi8-r",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_koi8_r(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_koi8_r(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_koi8_r)
+module_exit(exit_nls_koi8_r)
+MODULE_LICENSE("Dual BSD/GPL");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
diff --git a/fs/nls/nls_koi8-ru.c b/fs/nls/nls_koi8-ru.c
new file mode 100644
index 00000000000000..b94aaf1ee720bd
--- /dev/null
+++ b/fs/nls/nls_koi8-ru.c
@@ -0,0 +1,101 @@
+/*
+ * linux/fs/nls_koi8-ru.c
+ *
+ * Charset koi8-ru translation based on charset koi8-u.
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static struct nls_table *p_nls;
+
+static int uni2char(const wchar_t uni,
+		    unsigned char *out, int boundlen)
+{
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	if ((uni & 0xffaf) == 0x040e || (uni & 0xffce) == 0x254c) {
+		/* koi8-ru and koi8-u differ only on two characters */
+		if (uni == 0x040e)
+			out[0] = 0xbe;
+		else if (uni == 0x045e)
+			out[0] = 0xae;
+		else if (uni == 0x255d || uni == 0x256c)
+			return 0;
+		else
+			return p_nls->uni2char(uni, out, boundlen);
+		return 1;
+	}
+	else
+		/* fast path */
+		return p_nls->uni2char(uni, out, boundlen);
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen,
+		    wchar_t *uni)
+{
+	int n;
+
+	if ((*rawstring & 0xef) != 0xae) {
+		/* koi8-ru and koi8-u differ only on two characters */
+		*uni = (*rawstring & 0x10) ? 0x040e : 0x045e;
+		return 1;
+	}
+
+	n = p_nls->char2uni(rawstring, boundlen, uni);
+	return n;
+}
+
+static struct nls_table table = {
+	"koi8-ru",
+	uni2char,
+	char2uni,
+	NULL,
+	NULL,
+	THIS_MODULE,
+};
+
+static int __init init_nls_koi8_ru(void)
+{
+	p_nls = load_nls("koi8-u");
+
+	if (p_nls) {
+		table.charset2upper = p_nls->charset2upper;
+		table.charset2lower = p_nls->charset2lower;
+		return register_nls(&table);
+	}
+
+	return -EINVAL;
+}
+
+static void __exit exit_nls_koi8_ru(void)
+{
+	unregister_nls(&table);
+	unload_nls(p_nls);
+}
+
+module_init(init_nls_koi8_ru)
+module_exit(exit_nls_koi8_ru)
+MODULE_LICENSE("Dual BSD/GPL");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
diff --git a/fs/nls/nls_koi8-u.c b/fs/nls/nls_koi8-u.c
new file mode 100644
index 00000000000000..c9efbffb12434d
--- /dev/null
+++ b/fs/nls/nls_koi8-u.c
@@ -0,0 +1,347 @@
+/*
+ * linux/fs/nls_koi8-u.c
+ *
+ * Charset koi8-u translation tables.
+ * The Unicode to charset table has only exact mappings.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static wchar_t charset2uni[256] = {
+	/* 0x00*/
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
+	/* 0x10*/
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
+	/* 0x20*/
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
+	/* 0x30*/
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
+	/* 0x40*/
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
+	/* 0x50*/
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
+	/* 0x60*/
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
+	/* 0x70*/
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
+	/* 0x80*/
+	0x2500, 0x2502, 0x250c, 0x2510,
+	0x2514, 0x2518, 0x251c, 0x2524,
+	0x252c, 0x2534, 0x253c, 0x2580,
+	0x2584, 0x2588, 0x258c, 0x2590,
+	/* 0x90*/
+	0x2591, 0x2592, 0x2593, 0x2320,
+	0x25a0, 0x2219, 0x221a, 0x2248,
+	0x2264, 0x2265, 0x00a0, 0x2321,
+	0x00b0, 0x00b2, 0x00b7, 0x00f7,
+	/* 0xa0*/
+	0x2550, 0x2551, 0x2552, 0x0451,
+	0x0454, 0x2554, 0x0456, 0x0457,
+	0x2557, 0x2558, 0x2559, 0x255a,
+	0x255b, 0x0491, 0x255d, 0x255e,
+	/* 0xb0*/
+	0x255f, 0x2560, 0x2561, 0x0401,
+	0x0404, 0x2563, 0x0406, 0x0407,
+	0x2566, 0x2567, 0x2568, 0x2569,
+	0x256a, 0x0490, 0x256c, 0x00a9,
+	/* 0xc0*/
+	0x044e, 0x0430, 0x0431, 0x0446,
+	0x0434, 0x0435, 0x0444, 0x0433,
+	0x0445, 0x0438, 0x0439, 0x043a,
+	0x043b, 0x043c, 0x043d, 0x043e,
+	/* 0xd0*/
+	0x043f, 0x044f, 0x0440, 0x0441,
+	0x0442, 0x0443, 0x0436, 0x0432,
+	0x044c, 0x044b, 0x0437, 0x0448,
+	0x044d, 0x0449, 0x0447, 0x044a,
+	/* 0xe0*/
+	0x042e, 0x0410, 0x0411, 0x0426,
+	0x0414, 0x0415, 0x0424, 0x0413,
+	0x0425, 0x0418, 0x0419, 0x041a,
+	0x041b, 0x041c, 0x041d, 0x041e,
+	/* 0xf0*/
+	0x041f, 0x042f, 0x0420, 0x0421,
+	0x0422, 0x0423, 0x0416, 0x0412,
+	0x042c, 0x042b, 0x0417, 0x0428,
+	0x042d, 0x0429, 0x0427, 0x042a,
+};
+
+static unsigned char page00[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x9a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+	0x00, 0xbf, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
+	0x9c, 0x00, 0x9d, 0x00, 0x00, 0x00, 0x00, 0x9e, /* 0xb0-0xb7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9f, /* 0xf0-0xf7 */
+};
+
+static unsigned char page04[256] = {
+	0x00, 0xb3, 0x00, 0x00, 0xb4, 0x00, 0xb6, 0xb7, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0xe1, 0xe2, 0xf7, 0xe7, 0xe4, 0xe5, 0xf6, 0xfa, /* 0x10-0x17 */
+	0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, 0xf0, /* 0x18-0x1f */
+	0xf2, 0xf3, 0xf4, 0xf5, 0xe6, 0xe8, 0xe3, 0xfe, /* 0x20-0x27 */
+	0xfb, 0xfd, 0xff, 0xf9, 0xf8, 0xfc, 0xe0, 0xf1, /* 0x28-0x2f */
+	0xc1, 0xc2, 0xd7, 0xc7, 0xc4, 0xc5, 0xd6, 0xda, /* 0x30-0x37 */
+	0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0, /* 0x38-0x3f */
+	0xd2, 0xd3, 0xd4, 0xd5, 0xc6, 0xc8, 0xc3, 0xde, /* 0x40-0x47 */
+	0xdb, 0xdd, 0xdf, 0xd9, 0xd8, 0xdc, 0xc0, 0xd1, /* 0x48-0x4f */
+	0x00, 0xa3, 0x00, 0x00, 0xa4, 0x00, 0xa6, 0xa7, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0xbd, 0xad, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+};
+
+static unsigned char page22[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x95, 0x96, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x97, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
+	0x00, 0x00, 0x00, 0x00, 0x98, 0x99, 0x00, 0x00, /* 0x60-0x67 */
+};
+
+static unsigned char page23[256] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x93, 0x9b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+};
+
+static unsigned char page25[256] = {
+	0x80, 0x00, 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
+	0x00, 0x00, 0x00, 0x00, 0x82, 0x00, 0x00, 0x00, /* 0x08-0x0f */
+	0x83, 0x00, 0x00, 0x00, 0x84, 0x00, 0x00, 0x00, /* 0x10-0x17 */
+	0x85, 0x00, 0x00, 0x00, 0x86, 0x00, 0x00, 0x00, /* 0x18-0x1f */
+	0x00, 0x00, 0x00, 0x00, 0x87, 0x00, 0x00, 0x00, /* 0x20-0x27 */
+	0x00, 0x00, 0x00, 0x00, 0x88, 0x00, 0x00, 0x00, /* 0x28-0x2f */
+	0x00, 0x00, 0x00, 0x00, 0x89, 0x00, 0x00, 0x00, /* 0x30-0x37 */
+	0x00, 0x00, 0x00, 0x00, 0x8a, 0x00, 0x00, 0x00, /* 0x38-0x3f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
+	0xa0, 0xa1, 0xa2, 0x00, 0xa5, 0x00, 0x00, 0xa8, /* 0x50-0x57 */
+	0xa9, 0xaa, 0xab, 0xac, 0x00, 0xae, 0xaf, 0xb0, /* 0x58-0x5f */
+	0xb1, 0xb2, 0x00, 0xb5, 0x00, 0x00, 0xb8, 0xb9, /* 0x60-0x67 */
+	0xba, 0xbb, 0xbc, 0x00, 0xbe, 0x00, 0x00, 0x00, /* 0x68-0x6f */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
+
+	0x8b, 0x00, 0x00, 0x00, 0x8c, 0x00, 0x00, 0x00, /* 0x80-0x87 */
+	0x8d, 0x00, 0x00, 0x00, 0x8e, 0x00, 0x00, 0x00, /* 0x88-0x8f */
+	0x8f, 0x90, 0x91, 0x92, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
+	0x94, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
+};
+
+static unsigned char *page_uni2charset[256] = {
+	page00, NULL,   NULL,   NULL,   page04, NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   NULL,   
+	NULL,   NULL,   page22, page23, NULL,   page25, NULL,   NULL,   
+};
+
+static unsigned char charset2lower[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
+	0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xa3, 0xa4, 0xb5, 0xa6, 0xa7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xad, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
+	0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xe0-0xe7 */
+	0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xe8-0xef */
+	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xf0-0xf7 */
+	0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xf8-0xff */
+};
+
+static unsigned char charset2upper[256] = {
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
+	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
+	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
+	0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
+	0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
+
+	0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
+	0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
+	0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
+	0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x98-0x9f */
+	0xa0, 0xa1, 0xa2, 0xb3, 0xb4, 0xa5, 0xb6, 0xb7, /* 0xa0-0xa7 */
+	0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xbd, 0xae, 0xaf, /* 0xa8-0xaf */
+	0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
+	0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xc0-0xc7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xc8-0xcf */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xd0-0xd7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xd8-0xdf */
+	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
+	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
+	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
+	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
+};
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
+static struct nls_table table = {
+	"koi8-u",
+	uni2char,
+	char2uni,
+	charset2lower,
+	charset2upper,
+	THIS_MODULE,
+};
+
+static int __init init_nls_koi8_u(void)
+{
+	return register_nls(&table);
+}
+
+static void __exit exit_nls_koi8_u(void)
+{
+	unregister_nls(&table);
+}
+
+module_init(init_nls_koi8_u)
+module_exit(exit_nls_koi8_u)
+MODULE_LICENSE("Dual BSD/GPL");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
diff --git a/fs/nls/nls_sjis.c b/fs/nls/nls_sjis.c
new file mode 100644
index 00000000000000..024d59d1946408
--- /dev/null
+++ b/fs/nls/nls_sjis.c
@@ -0,0 +1,63 @@
+/*
+ * linux/fs/nls_sjis.c
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static struct nls_table *p_nls;
+
+static struct nls_table table = {
+	"sjis",
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	THIS_MODULE,
+};
+
+static int __init init_nls_sjis(void)
+{
+	p_nls = load_nls("cp932");
+
+	if (p_nls) {
+		table.uni2char = p_nls->uni2char;
+		table.char2uni = p_nls->char2uni;
+		table.charset2upper = p_nls->charset2upper;
+		table.charset2lower = p_nls->charset2lower;
+		return register_nls(&table);
+	}
+
+	return -EINVAL;
+}
+
+static void __exit exit_nls_sjis(void)
+{
+	unregister_nls(&table);
+	unload_nls(p_nls);
+}
+
+module_init(init_nls_sjis)
+module_exit(exit_nls_sjis)
+MODULE_LICENSE("Dual BSD/GPL");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ *
+---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
diff --git a/fs/nls/nls_tis-620.c b/fs/nls/nls_tis-620.c
new file mode 100644
index 00000000000000..b85a4f85818994
--- /dev/null
+++ b/fs/nls/nls_tis-620.c
@@ -0,0 +1,63 @@
+/*
+ * linux/fs/nls_tis-620.c
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static struct nls_table *p_nls;
+
+static struct nls_table table = {
+	"tis-620",
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	THIS_MODULE,
+};
+
+static int __init init_nls_tis_620(void)
+{
+	p_nls = load_nls("cp874");
+
+	if (p_nls) {
+		table.uni2char = p_nls->uni2char;
+		table.char2uni = p_nls->char2uni;
+		table.charset2upper = p_nls->charset2upper;
+		table.charset2lower = p_nls->charset2lower;
+		return register_nls(&table);
+	}
+
+	return -EINVAL;
+}
+
+static void __exit exit_nls_tis_620(void)
+{
+	unregister_nls(&table);
+	unload_nls(p_nls);
+}
+
+module_init(init_nls_tis_620)
+module_exit(exit_nls_tis_620)
+MODULE_LICENSE("Dual BSD/GPL");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ *
+---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
diff --git a/fs/nls/nls_utf8.c b/fs/nls/nls_utf8.c
new file mode 100644
index 00000000000000..09a84d76f2bc23
--- /dev/null
+++ b/fs/nls/nls_utf8.c
@@ -0,0 +1,61 @@
+/*
+ * Module for handling utf8 just like any other charset.
+ * By Urban Widmark 2000
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/errno.h>
+
+static unsigned char identity[256];
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	int n;
+
+	if ( (n = utf8_wctomb(out, uni, boundlen)) == -1) {
+		*out = '?';
+		return -EINVAL;
+	}
+	return n;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	int n;
+
+	if ( (n = utf8_mbtowc(uni, rawstring, boundlen)) == -1) {
+		*uni = 0x003f;	/* ? */
+		n = -EINVAL;
+	}
+	return n;
+}
+
+static struct nls_table table = {
+	"utf8",
+	uni2char,
+	char2uni,
+	identity,	/* no conversion */
+	identity,
+	THIS_MODULE,
+};
+
+static int __init init_nls_utf8(void)
+{
+	int i;
+	for (i=0; i<256; i++)
+		identity[i] = i;
+
+        return register_nls(&table);
+}
+
+static void __exit exit_nls_utf8(void)
+{
+        unregister_nls(&table);
+}
+
+module_init(init_nls_utf8)
+module_exit(exit_nls_utf8)
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/fs/ntfs/Makefile b/fs/ntfs/Makefile
new file mode 100644
index 00000000000000..dbed71023a172e
--- /dev/null
+++ b/fs/ntfs/Makefile
@@ -0,0 +1,11 @@
+# Rules for making the NTFS driver
+
+O_TARGET := ntfs.o
+
+obj-y   := fs.o sysctl.o support.o util.o inode.o dir.o super.o attr.o unistr.o
+obj-m   := $(O_TARGET)
+# New version format started 3 February 2001.
+EXTRA_CFLAGS = -DNTFS_VERSION=\"1.1.22\" #-DDEBUG
+
+include $(TOPDIR)/Rules.make
+
diff --git a/fs/ntfs/attr.c b/fs/ntfs/attr.c
new file mode 100644
index 00000000000000..b64aee7e17ba84
--- /dev/null
+++ b/fs/ntfs/attr.c
@@ -0,0 +1,872 @@
+/*
+ * attr.c
+ *
+ * Copyright (C) 1996-1999 Martin von Löwis
+ * Copyright (C) 1996-1997 Régis Duchesne
+ * Copyright (C) 1998 Joseph Malicki
+ * Copyright (C) 1999 Steve Dodd
+ * Copyright (C) 2001 Anton Altaparmakov (AIA)
+ */
+
+#include "ntfstypes.h"
+#include "struct.h"
+#include "attr.h"
+
+#include <linux/errno.h>
+#include <linux/ntfs_fs.h>
+#include "macros.h"
+#include "support.h"
+#include "util.h"
+#include "super.h"
+#include "inode.h"
+#include "unistr.h"
+
+/**
+ * ntfs_find_attr_in_mft_rec - find attribute in mft record
+ * @vol:	volume on which attr resides
+ * @m:		mft record to search
+ * @type:	attribute type to find
+ * @name:	attribute name to find (optional, i.e. NULL means don't care)
+ * @name_len:	attribute name length (only needed if @name present)
+ * @ic:		ignore case if 1 or case sensitive if 0 (ignored if @name NULL)
+ * @instance:	instance number to find
+ *
+ * Only search the specified mft record and it ignores the presence of an
+ * attribute list attribute (unless it is the one being searched for,
+ * obviously, in which case it is returned).
+ */
+ntfs_u8* ntfs_find_attr_in_mft_rec(ntfs_volume *vol, ntfs_u8 *m, __u32 type,
+		wchar_t *name, __u32 name_len, int ic, __u16 instance)
+{
+	ntfs_u8 *a;
+	
+	/* Iterate over attributes in mft record @m. */
+	a = m + NTFS_GETU16(m + 20);	/* attrs_offset */
+	for (; a >= m && a <= m + vol->mft_record_size;
+				a += NTFS_GETU32(a + 4 /* length */)) {
+		/* We catch $END with this more general check, too... */
+		if (NTFS_GETU32(a + 0 /* type */) > type)
+			return NULL;
+		if (!NTFS_GETU32(a + 4 /* length */))
+			break;
+		if (NTFS_GETU32(a + 0 /* type */) != type)
+			continue;
+		/* If @name is present, compare the two names. */
+		if (name && !ntfs_are_names_equal(name, name_len, (wchar_t*)
+				(a + NTFS_GETU16(a + 10 /* name_offset */)),
+				a[9] /* name_length */, ic, vol->upcase,
+				vol->upcase_length)) {
+			register int rc;
+			
+			rc = ntfs_collate_names(vol->upcase, vol->upcase_length,
+					name, name_len, (wchar_t*)(a +
+					NTFS_GETU16(a + 10 /* name_offset */)),
+					a[9] /* name_length */, 1, 1);
+			/*
+			 * If @name collates before a->name, there is no
+			 * matching attribute.
+			 */
+			if (rc == -1)
+				return NULL;
+			/* If the strings are not equal, continue search. */
+			if (rc)
+	 			continue;
+			rc = ntfs_collate_names(vol->upcase, vol->upcase_length,
+					name, name_len, (wchar_t*)(a +
+					NTFS_GETU16(a + 10 /* name_offset */)),
+					a[9] /* name_length */, 0, 1);
+			if (rc == -1)
+				return NULL;
+			if (rc)
+				continue;
+		}
+		/*
+		 * The names match or @name not present. Check instance number.
+		 * and if it matches we have found the attribute and are done.
+		 */
+		if (instance != NTFS_GETU16(a + 14 /* instance */))
+			continue;
+		ntfs_debug(DEBUG_FILE3, "ntfs_find_attr_in_mft_record: found: "
+			"attr type 0x%x, instance number = 0x%x.\n",
+			NTFS_GETU32(a + 0), instance);
+		return a;
+	}
+	ntfs_error("ntfs_find_attr_in_mft_record: mft record 0x%x is corrupt"
+			". Run chkdsk.\n", m);
+	return NULL;
+}
+
+/* Look if an attribute already exists in the inode, and if not, create it. */
+int ntfs_new_attr(ntfs_inode *ino, int type, void *name, int namelen,
+		  void *value, int value_len, int *pos, int *found)
+{
+	int do_insert = 0;
+	int i, m;
+	ntfs_attribute *a;
+
+	for (i = 0; i < ino->attr_count; i++)
+	{
+		a = ino->attrs + i;
+		if (a->type < type)
+			continue;
+		if (a->type > type) {
+			do_insert = 1;
+			break;
+		}
+		/* If @name is present, compare the two names. */
+		if (namelen && !ntfs_are_names_equal((wchar_t*)name, namelen,
+				a->name, a->namelen /* name_length */,
+				1 /* ignore case*/, ino->vol->upcase,
+				ino->vol->upcase_length)) {
+			register int rc;
+
+			rc = ntfs_collate_names(ino->vol->upcase,
+					ino->vol->upcase_length, a->name,
+					a->namelen, (wchar_t*)name, namelen,
+					1 /* ignore case */, 1);
+			if (rc == -1)
+				continue;
+			if (rc == 1) {
+	 			do_insert = 1;
+				break;
+			}
+			rc = ntfs_collate_names(ino->vol->upcase,
+					ino->vol->upcase_length, a->name,
+					a->namelen, (wchar_t*)name, namelen,
+					0 /* case sensitive */, 1);
+			if (rc == -1)
+				continue;
+			if (rc == 1) {
+				do_insert = 1;
+				break;
+			}
+		}
+		/* Names are equal or no name was asked for. */
+		/* If a value was specified compare the values. */
+		if (value_len && a->resident) {
+			if (!a->resident) {
+				ntfs_error("ntfs_new_attr: Value specified but "
+					"attribute non-resident. Bug!\n");
+				return -EINVAL;
+			}
+			m = value_len;
+			if (m > a->size)
+				m = a->size;
+			m = memcmp(value, a->d.data, m);
+			if (m > 0)
+				continue;
+			if (m < 0) {
+				do_insert = 1;
+				break;
+			}
+			/* Values match until min of value lengths. */
+			if (value_len > a->size)
+				continue;
+			if (value_len < a->size) {
+				do_insert = 1;
+				break;
+			}
+		}
+		/* Full match! */
+		*found = 1;
+		*pos = i;
+		return 0;
+	}
+	/* Re-allocate space. */
+	if (ino->attr_count % 8 == 0)
+	{
+		ntfs_attribute* new;
+		new = (ntfs_attribute*)ntfs_malloc((ino->attr_count + 8) *
+							sizeof(ntfs_attribute));
+		if (!new)
+			return -ENOMEM;
+		if (ino->attrs) {
+			ntfs_memcpy(new, ino->attrs, ino->attr_count *
+							sizeof(ntfs_attribute));
+			ntfs_free(ino->attrs);
+		}
+		ino->attrs = new;
+	}
+	if (do_insert)
+		ntfs_memmove(ino->attrs + i + 1, ino->attrs + i,
+			     (ino->attr_count - i) * sizeof(ntfs_attribute));
+	ino->attr_count++;
+	ino->attrs[i].type = type;
+	ino->attrs[i].namelen = namelen;
+	ino->attrs[i].name = name;
+	*pos = i;
+	*found = 0;
+	return 0;
+}
+
+int ntfs_make_attr_resident(ntfs_inode *ino, ntfs_attribute *attr)
+{
+	__s64 size = attr->size;
+	if (size > 0) {
+		/* FIXME: read data, free clusters */
+		return -EOPNOTSUPP;
+	}
+	attr->resident = 1;
+	return 0;
+}
+
+/* Store in the inode readable information about a run. */
+int ntfs_insert_run(ntfs_attribute *attr, int cnum, ntfs_cluster_t cluster,
+		     int len)
+{
+	/* (re-)allocate space if necessary. */
+	if ((attr->d.r.len * sizeof(ntfs_runlist)) % PAGE_SIZE == 0) {
+		ntfs_runlist* new;
+		unsigned long new_size;
+
+		ntfs_debug(DEBUG_MALLOC, "ntfs_insert_run: re-allocating "
+				"space: old attr->d.r.len = 0x%x\n",
+				attr->d.r.len);
+		new_size = attr->d.r.len * sizeof(ntfs_runlist) + PAGE_SIZE;
+		if ((new_size >> PAGE_SHIFT) > num_physpages) {
+			ntfs_error("ntfs_insert_run: attempted to allocate "
+					"more pages than num_physpages."
+					"This might be a bug or a corrupt"
+					"file system.\n");
+			return -1;
+		}
+		new = ntfs_vmalloc(new_size);
+		if (!new) {
+			ntfs_error("ntfs_insert_run: ntfs_vmalloc(new_size = "
+					"0x%x) failed\n", new_size);
+			return -1;
+		}
+		if (attr->d.r.runlist) {
+			ntfs_memcpy(new, attr->d.r.runlist, attr->d.r.len
+					* sizeof(ntfs_runlist));
+			ntfs_vfree(attr->d.r.runlist);
+		}
+		attr->d.r.runlist = new;
+	}
+	if (attr->d.r.len > cnum)
+		ntfs_memmove(attr->d.r.runlist + cnum + 1,
+			     attr->d.r.runlist + cnum,
+			     (attr->d.r.len - cnum) * sizeof(ntfs_runlist));
+	attr->d.r.runlist[cnum].lcn = cluster;
+	attr->d.r.runlist[cnum].len = len;
+	attr->d.r.len++;
+	return 0;
+}
+
+/**
+ * ntfs_extend_attr - extend allocated size of an attribute
+ * @ino:	ntfs inode containing the attribute to extend
+ * @attr:	attribute which to extend
+ * @len:	desired new length for @attr (_not_ the amount to extend by)
+ *
+ * Extends an attribute. Allocate clusters on the volume which @ino belongs to.
+ * Extends the run list accordingly, preferably by extending the last run of
+ * the existing run list, first.
+ *
+ * Only modifies attr->allocated, i.e. doesn't touch attr->size, nor
+ * attr->initialized.
+ */
+int ntfs_extend_attr(ntfs_inode *ino, ntfs_attribute *attr, const __s64 len)
+{
+	int rlen, rl2_len, err = 0;
+	ntfs_cluster_t cluster, clen;
+	ntfs_runlist *rl, *rl2;
+
+	if ((attr->flags & (ATTR_IS_COMPRESSED | ATTR_IS_ENCRYPTED)) ||
+			ino->record_count > 1)
+		return -EOPNOTSUPP;
+	/*
+	 * FIXME: Don't make non-resident if the attribute type is not right.
+	 * For example cannot make index attribute non-resident! (AIA)
+	 */
+	if (attr->resident) {
+		err = ntfs_make_attr_nonresident(ino, attr);
+		if (err)
+			return err;
+	}
+	if (len <= attr->allocated)
+		return 0;	/* Truly stupid things do sometimes happen. */
+	rl = attr->d.r.runlist;
+	rlen = attr->d.r.len;
+	if (rlen > 0)
+		cluster = rl[rlen - 1].lcn + rl[rlen - 1].len;
+	else
+		/* No preference for allocation space. */
+		cluster = (ntfs_cluster_t)-1;
+	/*
+	 * Calculate the extra space we need, and round up to multiple of
+	 * cluster size to get number of new clusters needed.
+	 */
+	clen = (len - attr->allocated + ino->vol->cluster_size - 1) >>
+			ino->vol->cluster_size_bits;
+	if (!clen)
+		return 0;
+	err = ntfs_allocate_clusters(ino->vol, &cluster, &clen, &rl2,
+			&rl2_len, DATA_ZONE);
+	if (err)
+		return err;
+	attr->allocated += (__s64)clen << ino->vol->cluster_size_bits;
+	if (rlen > 0) {
+		err = splice_runlists(&rl, &rlen, rl2, rl2_len);
+		ntfs_vfree(rl2);
+		if (err)
+			return err;
+	} else {
+		if (rl)
+			ntfs_vfree(rl);
+		rl = rl2;
+		rlen = rl2_len;
+	}
+	attr->d.r.runlist = rl;
+	attr->d.r.len = rlen;
+	return 0;
+}
+
+int ntfs_make_attr_nonresident(ntfs_inode *ino, ntfs_attribute *attr)
+{
+	int error;
+	ntfs_io io;
+	void *data = attr->d.data;
+	__s64 len = attr->size;
+
+	attr->d.r.len = 0;
+	attr->d.r.runlist = NULL;
+	attr->resident = 0;
+	/*
+	 * ->allocated is updated by ntfs_extend_attr(), while ->initialized
+	 * and ->size are updated by ntfs_readwrite_attr(). (AIA)
+	 */
+	attr->allocated = attr->initialized = 0;
+	error = ntfs_extend_attr(ino, attr, len);
+	if (error)
+		return error; /* FIXME: On error, restore old values. */
+	io.fn_put = ntfs_put;
+	io.fn_get = ntfs_get;
+	io.param = data;
+	io.size = len;
+	io.do_read = 0;
+	return ntfs_readwrite_attr(ino, attr, 0, &io);
+}
+
+int ntfs_attr_allnonresident(ntfs_inode *ino)
+{
+	int i, error = 0;
+        ntfs_volume *vol = ino->vol;
+
+	for (i = 0; !error && i < ino->attr_count; i++)
+	{
+		if (ino->attrs[i].type != vol->at_security_descriptor &&
+		    ino->attrs[i].type != vol->at_data)
+			continue;
+		error = ntfs_make_attr_nonresident(ino, ino->attrs + i);
+	}
+	return error;
+}
+
+/*
+ * Resize the attribute to a newsize. attr->allocated and attr->size are
+ * updated, but attr->initialized is not changed unless it becomes bigger than
+ * attr->size, in which case it is set to attr->size.
+ */
+int ntfs_resize_attr(ntfs_inode *ino, ntfs_attribute *attr, __s64 newsize)
+{
+	int error = 0;
+	__s64 oldsize = attr->size;
+	int clustersizebits = ino->vol->cluster_size_bits;
+	int i, count, newcount;
+	ntfs_runlist *rl, *rlt;
+
+	if (newsize == oldsize)
+		return 0;
+	if (attr->flags & (ATTR_IS_COMPRESSED | ATTR_IS_ENCRYPTED))
+		return -EOPNOTSUPP;
+	if (attr->resident) {
+		void *v;
+		if (newsize > ino->vol->mft_record_size) {
+			error = ntfs_make_attr_nonresident(ino, attr);
+			if (error)
+				return error;
+			return ntfs_resize_attr(ino, attr, newsize);
+		}
+		v = attr->d.data;
+		if (newsize) {
+			__s64 minsize = newsize;
+			attr->d.data = ntfs_malloc(newsize);
+			if (!attr->d.data) {
+				ntfs_free(v);
+				return -ENOMEM;
+			}
+			if (newsize > oldsize) {
+				minsize = oldsize;
+				ntfs_bzero((char*)attr->d.data + oldsize,
+					   newsize - oldsize);
+			}
+			ntfs_memcpy((char*)attr->d.data, v, minsize);
+		} else
+			attr->d.data = 0;
+		ntfs_free(v);
+		attr->size = newsize;
+		return 0;
+	}
+	/* Non-resident attribute. */
+	rl = attr->d.r.runlist;
+	if (newsize < oldsize) {
+		int rl_size;
+		/*
+		 * FIXME: We might be going awfully wrong for newsize = 0,
+		 * possibly even leaking memory really badly. But considering
+		 * in that case there is more breakage due to -EOPNOTSUPP stuff
+		 * further down the code path, who cares for the moment... (AIA)
+		 */
+		for (i = 0, count = 0; i < attr->d.r.len; i++) {
+			if ((__s64)(count + rl[i].len) << clustersizebits >
+					newsize) {
+				i++;
+				break;
+			}
+			count += (int)rl[i].len;
+		}
+		newcount = count;
+		/* Free unused clusters in current run, unless sparse. */
+		if (rl[--i].lcn != (ntfs_cluster_t)-1) {
+			ntfs_cluster_t rounded = newsize - ((__s64)count <<
+					clustersizebits);
+			rounded = (rounded + ino->vol->cluster_size - 1) >>
+					clustersizebits;
+			error = ntfs_deallocate_cluster_run(ino->vol, 
+					rl[i].lcn + rounded,
+					rl[i].len - rounded);
+			if (error)
+				return error; /* FIXME: Incomplete operation. */
+			rl[i].len = rounded;
+			newcount = count + rounded;
+		}
+		/* Free all other runs. */
+		i++;
+		error = ntfs_deallocate_clusters(ino->vol, rl + i,
+				attr->d.r.len - i);
+		if (error)
+			return error; /* FIXME: Incomplete operation. */
+		/*
+		 * Free space for extra runs in memory if enough memory left
+		 * to do so. FIXME: Only do it if it would free memory. (AIA)
+		 */
+		rl_size = ((i + 1) * sizeof(ntfs_runlist) + PAGE_SIZE - 1) &
+				PAGE_MASK;
+		if (rl_size < ((attr->d.r.len * sizeof(ntfs_runlist) +
+				PAGE_SIZE - 1) & PAGE_MASK)) {
+			rlt = ntfs_vmalloc(rl_size);
+			if (rlt) {
+				ntfs_memcpy(rlt, rl, i * sizeof(ntfs_runlist));
+				ntfs_vfree(rl);
+				attr->d.r.runlist = rl = rlt;
+			}
+		}
+		rl[i].lcn = (ntfs_cluster_t)-1;
+		rl[i].len = (ntfs_cluster_t)0;
+		attr->d.r.len = i;
+	} else {
+		error = ntfs_extend_attr(ino, attr, newsize);
+		if (error)
+			return error; /* FIXME: Incomplete operation. */
+		newcount = (newsize + ino->vol->cluster_size - 1) >>
+				clustersizebits;
+	}
+	/* Fill in new sizes. */
+	attr->allocated = (__s64)newcount << clustersizebits;
+	attr->size = newsize;
+	if (attr->initialized > newsize)
+		attr->initialized = newsize;
+	if (!newsize)
+		error = ntfs_make_attr_resident(ino, attr);
+	return error;
+}
+
+int ntfs_create_attr(ntfs_inode *ino, int anum, char *aname, void *data,
+		int dsize, ntfs_attribute **rattr)
+{
+	void *name;
+	int namelen;
+	int found, i;
+	int error;
+	ntfs_attribute *attr;
+	
+	if (dsize > ino->vol->mft_record_size)
+		/* FIXME: Non-resident attributes. */
+		return -EOPNOTSUPP;
+	if (aname) {
+		namelen = strlen(aname);
+		name = ntfs_malloc(2 * namelen);
+		if (!name)
+			return -ENOMEM;
+		ntfs_ascii2uni(name, aname, namelen);
+	} else {
+		name = 0;
+		namelen = 0;
+	}
+	error = ntfs_new_attr(ino, anum, name, namelen, data, dsize, &i,
+			&found);
+	if (error || found) {
+		ntfs_free(name);
+		return error ? error : -EEXIST;
+	}
+	*rattr = attr = ino->attrs + i;
+	/* Allocate a new number.
+	 * FIXME: Should this happen on inode writeback?
+	 * FIXME: Extension records not supported. */
+	error = ntfs_allocate_attr_number(ino, &i);
+	if (error)
+		return error;
+	attr->attrno = i;
+	if (attr->attrno + 1 != NTFS_GETU16(ino->attr + 0x28))
+		ntfs_error("UH OH! attr->attrno (%i) != NTFS_GETU16(ino->attr "
+				"+ 0x28) (%i)\n", attr->attrno,
+				NTFS_GETU16(ino->attr + 0x28));
+	attr->resident = 1;
+	attr->flags = 0;
+	attr->cengine = 0;
+	attr->size = attr->allocated = attr->initialized = dsize;
+
+	/* FIXME: INDEXED information should come from $AttrDef
+	 * Currently, only file names are indexed. As of NTFS v3.0 (Win2k),
+	 * this is no longer true. Different attributes can be indexed now. */
+	if (anum == ino->vol->at_file_name)
+		attr->indexed = 1;
+	else
+		attr->indexed = 0;
+	attr->d.data = ntfs_malloc(dsize);
+	if (!attr->d.data)
+		return -ENOMEM;
+	ntfs_memcpy(attr->d.data, data, dsize);
+	return 0;
+}
+
+/*
+ * Non-resident attributes are stored in runs (intervals of clusters).
+ *
+ * This function stores in the inode readable information about a non-resident
+ * attribute.
+ */
+static int ntfs_process_runs(ntfs_inode *ino, ntfs_attribute* attr,
+		unsigned char *data)
+{
+	int startvcn, endvcn;
+	int vcn, cnum;
+	ntfs_cluster_t cluster;
+	int len, ctype;
+	int er = 0;
+	startvcn = NTFS_GETS64(data + 0x10);
+	endvcn = NTFS_GETS64(data + 0x18);
+
+	/* Check whether this chunk really belongs to the end. Problem with
+	 * this: this functions can get called on the last extent first, before
+	 * it is called on the other extents in sequence. This happens when the
+	 * base mft record contains the last extent instead of the first one
+	 * and the first extent is stored, like any intermediate extents in
+	 * extension mft records. This would be difficult to allow the way the
+	 * runlist is stored in memory. Thus we fix elsewhere by causing the
+	 * attribute list attribute to be processed immediately when found. The
+	 * extents will then be processed starting with the first one. */
+	for (cnum = 0, vcn = 0; cnum < attr->d.r.len; cnum++)
+		vcn += attr->d.r.runlist[cnum].len;
+	if (vcn != startvcn) {
+		ntfs_debug(DEBUG_FILE3, "ntfs_process_runs: ino = 0x%x, "
+			"attr->type = 0x%x, startvcn = 0x%x, endvcn = 0x%x, "
+			"vcn = 0x%x, cnum = 0x%x\n", ino->i_number, attr->type,
+			startvcn, endvcn, vcn, cnum);
+		if (vcn < startvcn) {
+			ntfs_error("Problem with runlist in extended record\n");
+			return -1;
+		}
+		/* Tried to insert an already inserted runlist. */
+		return 0;
+	}
+	if (!endvcn) {
+		if (!startvcn) {
+			/* Allocated length. */
+			endvcn = NTFS_GETS64(data + 0x28) - 1;
+			endvcn >>= ino->vol->cluster_size_bits;
+		} else {
+			/* This is an extent. Allocated length is not defined!
+			 * Extents must have an endvcn though so this is an
+			 * error. */
+			ntfs_error("Corrupt attribute extent. (endvcn is "
+				"missing)\n");
+			return -1;
+		}
+	}
+	data = data + NTFS_GETU16(data + 0x20);
+	cnum = attr->d.r.len;
+	cluster = 0;
+	for (vcn = startvcn; vcn <= endvcn; vcn += len)	{
+		if (ntfs_decompress_run(&data, &len, &cluster, &ctype)) {
+			ntfs_debug(DEBUG_FILE3, "ntfs_process_runs: "
+				"ntfs_decompress_run failed. i_number = 0x%x\n",
+				ino->i_number);
+			return -1;
+		}
+		if (ctype)
+			er = ntfs_insert_run(attr, cnum, -1, len);
+		else
+			er = ntfs_insert_run(attr, cnum, cluster, len);
+		if (er)
+			break;
+		cnum++;
+	}
+	if (er)
+		ntfs_error("ntfs_process_runs: ntfs_insert_run failed\n");
+	ntfs_debug(DEBUG_FILE3, "ntfs_process_runs: startvcn = 0x%x, vcn = 0x%x"
+				", endvcn = 0x%x, cnum = %i\n", startvcn, vcn,
+				endvcn, cnum);
+	return er;
+}
+  
+/* Insert the attribute starting at attr in the inode ino. */
+int ntfs_insert_attribute(ntfs_inode *ino, unsigned char *attrdata)
+{
+	int i, found;
+	int type;
+	short int *name;
+	int namelen;
+	void *data;
+	ntfs_attribute *attr;
+	int error;
+
+	type = NTFS_GETU32(attrdata);
+	namelen = NTFS_GETU8(attrdata + 9);
+	ntfs_debug(DEBUG_FILE3, "ntfs_insert_attribute: ino->i_number 0x%x, "
+			"attr type 0x%x\n", ino->i_number, type);
+	/* Read the attribute's name if it has one. */
+	if (!namelen)
+		name = 0;
+	else {
+		/* 1 Unicode character fits in 2 bytes. */
+		name = ntfs_malloc(2 * namelen);
+		if (!name)
+			return -ENOMEM;
+		ntfs_memcpy(name, attrdata + NTFS_GETU16(attrdata + 10),
+			    2 * namelen);
+	}
+	/* If resident look for value, too. */
+	if (NTFS_GETU8(attrdata + 8) == 0)
+		error = ntfs_new_attr(ino, type, name, namelen,
+				attrdata + NTFS_GETU16(attrdata + 0x14),
+				NTFS_GETU16(attrdata + 0x10), &i, &found);
+	else
+		error = ntfs_new_attr(ino, type, name, namelen, NULL, 0, &i,
+				&found);
+	if (error) {
+		ntfs_debug(DEBUG_FILE3, "ntfs_insert_attribute: ntfs_new_attr "
+				"failed.\n");
+		if (name)
+			ntfs_free(name);
+		return error;
+	}
+	if (found) {
+		/* It's already there, if not resident just process the runs. */
+		if (!ino->attrs[i].resident) {
+			ntfs_debug(DEBUG_FILE3, "ntfs_insert_attribute:"
+						" processing runs 1.\n");
+			/* FIXME: Check error code! (AIA) */
+			ntfs_process_runs(ino, ino->attrs + i, attrdata);
+		}
+		return 0;
+	}
+	attr = ino->attrs + i;
+	attr->resident = NTFS_GETU8(attrdata + 8) == 0;
+	attr->flags = *(__u16*)(attrdata + 0xC);
+	attr->attrno = NTFS_GETU16(attrdata + 0xE);
+  
+	if (attr->resident) {
+		attr->size = NTFS_GETU16(attrdata + 0x10);
+		data = attrdata + NTFS_GETU16(attrdata + 0x14);
+		attr->d.data = (void*)ntfs_malloc(attr->size);
+		if (!attr->d.data)
+			return -ENOMEM;
+		ntfs_memcpy(attr->d.data, data, attr->size);
+		attr->indexed = NTFS_GETU8(attrdata + 0x16);
+	} else {
+		attr->allocated = NTFS_GETS64(attrdata + 0x28);
+		attr->size = NTFS_GETS64(attrdata + 0x30);
+		attr->initialized = NTFS_GETS64(attrdata + 0x38);
+		attr->cengine = NTFS_GETU16(attrdata + 0x22);
+		if (attr->flags & ATTR_IS_COMPRESSED)
+			attr->compsize = NTFS_GETS64(attrdata + 0x40);
+		ntfs_debug(DEBUG_FILE3, "ntfs_insert_attribute: "
+			"attr->allocated = 0x%Lx, attr->size = 0x%Lx, "
+			"attr->initialized = 0x%Lx\n", attr->allocated,
+			attr->size, attr->initialized);
+		ino->attrs[i].d.r.runlist = 0;
+		ino->attrs[i].d.r.len = 0;
+		ntfs_debug(DEBUG_FILE3, "ntfs_insert_attribute: processing "
+				"runs 2.\n");
+		/* FIXME: Check error code! (AIA) */
+		ntfs_process_runs(ino, attr, attrdata);
+	}
+	return 0;
+}
+
+int ntfs_read_zero(ntfs_io *dest, int size)
+{
+	int i;
+	char *sparse = ntfs_calloc(512);
+	if (!sparse)
+		return -ENOMEM;
+	i = 512;
+	while (size) {
+		if (i > size)
+			i = size;
+		dest->fn_put(dest, sparse, i);
+		size -= i;
+	}
+	ntfs_free(sparse);
+	return 0;
+}
+
+/* Process compressed attributes. */
+int ntfs_read_compressed(ntfs_inode *ino, ntfs_attribute *attr, __s64 offset,
+			 ntfs_io *dest)
+{
+	int error = 0;
+	int clustersizebits;
+	int s_vcn, rnum, vcn, got, l1;
+	__s64 copied, len, chunk, offs1, l, chunk2;
+	ntfs_cluster_t cluster, cl1;
+	char *comp = 0, *comp1;
+	char *decomp = 0;
+	ntfs_io io;
+	ntfs_runlist *rl;
+
+	l = dest->size;
+	clustersizebits = ino->vol->cluster_size_bits;
+	/* Starting cluster of potential chunk. There are three situations:
+	   a) In a large uncompressible or sparse chunk, s_vcn is in the middle
+	      of a run.
+	   b) s_vcn is right on a run border.
+	   c) When several runs make a chunk, s_vcn is before the chunks. */
+	s_vcn = offset >> clustersizebits;
+	/* Round down to multiple of 16. */
+	s_vcn &= ~15;
+	rl = attr->d.r.runlist;
+	for (rnum = vcn = 0; rnum < attr->d.r.len && vcn + rl->len <= s_vcn;
+								rnum++, rl++)
+		vcn += rl->len;
+	if (rnum == attr->d.r.len) {
+		/* Beyond end of file. */
+		/* FIXME: Check allocated / initialized. */
+		dest->size = 0;
+		return 0;
+	}
+	io.do_read = 1;
+	io.fn_put = ntfs_put;
+	io.fn_get = 0;
+	cluster = rl->lcn;
+	len = rl->len;
+	copied = 0;
+	while (l) {
+		chunk = 0;
+		if (cluster == (ntfs_cluster_t)-1) {
+			/* Sparse cluster. */
+			__s64 ll;
+
+			if ((len - (s_vcn - vcn)) & 15)
+				ntfs_error("Unexpected sparse chunk size.");
+			ll = ((__s64)(vcn + len) << clustersizebits) - offset;
+			if (ll > l)
+				ll = l;
+			chunk = ll;
+			error = ntfs_read_zero(dest, ll);
+			if (error)
+				goto out;
+		} else if (dest->do_read) {
+			if (!comp) {
+				comp = ntfs_malloc(16 << clustersizebits);
+				if (!comp) {
+					error = -ENOMEM;
+					goto out;
+				}
+			}
+			got = 0;
+			/* We might need to start in the middle of a run. */
+			cl1 = cluster + s_vcn - vcn;
+			comp1 = comp;
+			do {
+				int delta;
+
+				io.param = comp1;
+				delta = s_vcn - vcn;
+				if (delta < 0)
+					delta = 0;
+				l1 = len - delta;
+				if (l1 > 16 - got)
+					l1 = 16 - got;
+				io.size = (__s64)l1 << clustersizebits;
+				error = ntfs_getput_clusters(ino->vol, cl1, 0,
+					       		     &io);
+				if (error)
+					goto out;
+				if (l1 + delta == len) {
+					rnum++;
+					rl++;
+					vcn += len;
+					cluster = cl1 = rl->lcn;
+					len = rl->len;
+				}
+				got += l1;
+				comp1 += (__s64)l1 << clustersizebits;
+			} while (cluster != (ntfs_cluster_t)-1 && got < 16);
+							/* Until empty run. */
+			chunk = 16 << clustersizebits;
+			if (cluster != (ntfs_cluster_t)-1 || got == 16)
+				/* Uncompressible */
+				comp1 = comp;
+			else {
+				if (!decomp) {
+					decomp = ntfs_malloc(16 << 
+							clustersizebits);
+					if (!decomp) {
+						error = -ENOMEM;
+						goto out;
+					}
+				}
+				/* Make sure there are null bytes after the
+				 * last block. */
+				*(ntfs_u32*)comp1 = 0;
+				ntfs_decompress(decomp, comp, chunk);
+				comp1 = decomp;
+			}
+			offs1 = offset - ((__s64)s_vcn << clustersizebits);
+			chunk2 = (16 << clustersizebits) - offs1;
+			if (chunk2 > l)
+				chunk2 = l;
+			if (chunk > chunk2)
+				chunk = chunk2;
+			dest->fn_put(dest, comp1 + offs1, chunk);
+		}
+		l -= chunk;
+		copied += chunk;
+		offset += chunk;
+		s_vcn = (offset >> clustersizebits) & ~15;
+		if (l && offset >= ((__s64)(vcn + len) << clustersizebits)) {
+			rnum++;
+			rl++;
+			vcn += len;
+			cluster = rl->lcn;
+			len = rl->len;
+		}
+	}
+out:
+	if (comp)
+		ntfs_free(comp);
+	if (decomp)
+		ntfs_free(decomp);
+	dest->size = copied;
+	return error;
+}
+
+int ntfs_write_compressed(ntfs_inode *ino, ntfs_attribute *attr, __s64 offset,
+		ntfs_io *dest)
+{
+	return -EOPNOTSUPP;
+}
+
diff --git a/fs/ntfs/attr.h b/fs/ntfs/attr.h
new file mode 100644
index 00000000000000..cb8d9fd08d963f
--- /dev/null
+++ b/fs/ntfs/attr.h
@@ -0,0 +1,38 @@
+/*
+ * attr.h -  Header file for attr.c
+ *
+ * Copyright (C) 1997 Régis Duchesne
+ * Copyright (c) 2001 Anton Altaparmakov (AIA)
+ */
+#include <linux/nls.h>
+
+ntfs_u8* ntfs_find_attr_in_mft_rec(ntfs_volume *vol, ntfs_u8 *m, __u32 type,
+			wchar_t *name, __u32 name_len, int ic, __u16 instance);
+
+int ntfs_extend_attr(ntfs_inode *ino, ntfs_attribute *attr, const __s64 len);
+
+int ntfs_resize_attr(ntfs_inode *ino, ntfs_attribute *attr, __s64 newsize);
+
+int ntfs_insert_attribute(ntfs_inode *ino, unsigned char* attrdata);
+
+int ntfs_read_compressed(ntfs_inode *ino, ntfs_attribute *attr, __s64 offset,
+			 ntfs_io *dest);
+
+int ntfs_write_compressed(ntfs_inode *ino, ntfs_attribute *attr, __s64 offset,
+			  ntfs_io *dest);
+
+int ntfs_create_attr(ntfs_inode *ino, int anum, char *aname, void *data,
+		     int dsize, ntfs_attribute **rattr);
+
+int ntfs_read_zero(ntfs_io *dest, int size);
+
+int ntfs_make_attr_nonresident(ntfs_inode *ino, ntfs_attribute *attr);
+
+int ntfs_attr_allnonresident(ntfs_inode *ino);
+
+int ntfs_new_attr(ntfs_inode *ino, int type, void *name, int namelen,
+		  void *value, int value_len, int *pos, int *found);
+
+int ntfs_insert_run(ntfs_attribute *attr, int cnum, ntfs_cluster_t cluster,
+		     int len);
+
diff --git a/fs/ntfs/dir.c b/fs/ntfs/dir.c
new file mode 100644
index 00000000000000..872acf78a89c3d
--- /dev/null
+++ b/fs/ntfs/dir.c
@@ -0,0 +1,1103 @@
+/*
+ * dir.c
+ *
+ * Copyright (C) 1995-1997, 1999 Martin von Löwis
+ * Copyright (C) 1999 Steve Dodd
+ * Copyright (C) 1999 Joseph Malicki
+ * Copyright (C) 2001 Anton Altaparmakov (AIA)
+ */
+
+#include "ntfstypes.h"
+#include "struct.h"
+#include "dir.h"
+#include "macros.h"
+
+#include <linux/errno.h>
+#include "super.h"
+#include "inode.h"
+#include "attr.h"
+#include "support.h"
+#include "util.h"
+#include <linux/smp_lock.h>
+#include <linux/bitops.h>
+
+static char I30[] = "$I30";
+
+/* An index record should start with INDX, and the last word in each block
+ * should contain the check value. If it passes, the original values need to
+ * be restored. */
+int ntfs_check_index_record(ntfs_inode *ino, char *record)
+{
+	return ntfs_fixup_record(record, "INDX", ino->u.index.recordsize);
+}
+
+static inline int ntfs_is_top(ntfs_u64 stack)
+{
+	return stack == 14;
+}
+
+static int ntfs_pop(ntfs_u64 *stack)
+{
+	static int width[16] = {1,2,1,3,1,2,1,4,1,2,1,3,1,2,1,-1};
+	int res = -1;
+	
+	switch (width[*stack & 15]) {
+	case 1:
+		res = (int)((*stack & 15) >> 1);
+		*stack >>= 4;
+		break;
+	case 2:
+		res = (int)(((*stack & 63) >> 2) + 7);
+		*stack >>= 6;
+		break;
+	case 3:
+		res = (int)(((*stack & 255) >> 3) + 23);
+		*stack >>= 8;
+		break;
+	case 4:
+		res = (int)(((*stack & 1023) >> 4) + 55);
+		*stack >>= 10;
+		break;
+	default:
+		ntfs_error("Unknown encoding\n");
+	}
+	return res;
+}
+
+static inline unsigned int ntfs_top(void)
+{
+	return 14;
+}
+
+static ntfs_u64 ntfs_push(ntfs_u64 stack, int i)
+{
+	if (i < 7)
+		return (stack << 4) | (i << 1);
+	if (i < 23)
+		return (stack << 6) | ((i - 7) << 2) | 1;
+	if (i < 55)
+		return (stack << 8) | ((i - 23) << 3) | 3;
+	if (i < 120)
+		return (stack << 10) | ((i - 55) << 4) | 7;
+	ntfs_error("Too many entries\n");
+	return ~((ntfs_u64)0);
+}
+
+#if 0
+static void ntfs_display_stack(ntfs_u64 stack)
+{
+	while(!ntfs_is_top(stack))
+	{
+		printf("%d ", ntfs_pop(&stack));
+	}
+	printf("\n");
+}
+#endif
+
+/* True if the entry points to another block of entries. */
+static inline int ntfs_entry_has_subnodes(char *entry)
+{
+	return (NTFS_GETU16(entry + 0xc) & 1);
+}
+
+/* True if it is not the 'end of dir' entry. */
+static inline int ntfs_entry_is_used(char *entry)
+{
+	return !(NTFS_GETU16(entry + 0xc) & 2);
+}
+
+/*
+ * Removed RACE for allocating index blocks. But stil not too happy.
+ * There might be more races afterwards. (AIA)
+ */
+static int ntfs_allocate_index_block(ntfs_iterate_s *walk)
+{
+	ntfs_attribute *allocation, *bitmap = 0;
+	int error, size, i, bit;
+	ntfs_u8 *bmap;
+	ntfs_io io;
+	ntfs_volume *vol = walk->dir->vol;
+
+	/* Check for allocation attribute. */
+	allocation = ntfs_find_attr(walk->dir, vol->at_index_allocation, I30);
+	if (!allocation) {
+		ntfs_u8 bmp[8];
+		/* Create index allocation attribute. */
+		error = ntfs_create_attr(walk->dir, vol->at_index_allocation,
+					 I30, 0, 0, &allocation);
+		if (error)
+			goto err_ret;
+		ntfs_bzero(bmp, sizeof(bmp));
+		error = ntfs_create_attr(walk->dir, vol->at_bitmap, I30, bmp,
+					 sizeof(bmp), &bitmap);
+		if (error)
+			goto err_ret;
+	} else
+		bitmap = ntfs_find_attr(walk->dir, vol->at_bitmap, I30);
+	if (!bitmap) {
+		ntfs_error("Directory w/o bitmap\n");
+		error = -EINVAL;
+		goto err_ret;
+	}
+	size = bitmap->size;
+	bmap = ntfs_malloc(size);
+	if (!bmap) {
+		error = -ENOMEM;
+		goto err_ret;
+	}
+	io.fn_put = ntfs_put;
+	io.fn_get = ntfs_get;
+try_again:
+	io.param = bmap;
+	io.size = size;
+	error = ntfs_read_attr(walk->dir, vol->at_bitmap, I30, 0, &io);
+	if (error || (io.size != size && (error = -EIO, 1)))
+		goto err_fb_out;
+	/* Allocate a bit. */
+	for (bit = i = 0; i < size; i++) {
+		if (bmap[i] == 0xFF)
+			continue;
+		bit = ffz(bmap[i]);
+		if (bit < 8)
+			break;
+	}
+	if (i >= size) {
+		/* FIXME: Extend bitmap. */
+		error = -EOPNOTSUPP;
+		goto err_fb_out;
+	}
+	/* Get the byte containing our bit again, now taking the BKL. */
+	io.param = bmap;
+	io.size = 1;
+	lock_kernel();
+	error = ntfs_read_attr(walk->dir, vol->at_bitmap, I30, i, &io);
+	if (error || (io.size != 1 && (error = -EIO, 1)))
+		goto err_unl_out;
+	if (ntfs_test_and_set_bit(bmap, bit)) {
+		unlock_kernel();
+		/* Give other process(es) a chance to finish. */
+		schedule();
+		goto try_again;
+	}
+	walk->newblock = (i * 8 + bit) * walk->dir->u.index.clusters_per_record;
+	io.param = bmap;
+	error = ntfs_write_attr(walk->dir, vol->at_bitmap, I30, i, &io);
+	if (error || (io.size != size && (error = -EIO, 1)))
+		goto err_unl_out;
+	/* Change inode on disk, required when bitmap is resident. */
+	error = ntfs_update_inode(walk->dir);
+	if (error)
+		goto err_unl_out;
+	unlock_kernel();
+	ntfs_free(bmap);
+	/* Check whether record is out of allocated range. */
+	size = allocation->size;
+	if (walk->newblock * vol->cluster_size >= size) {
+		/* Build index record. */
+		int hsize;
+		int s1 = walk->dir->u.index.recordsize;
+		int nr_fix = (s1 >> vol->sector_size) + 1;
+		char *record = ntfs_malloc(s1);
+		if (!record) {
+			error = -ENOMEM;
+			goto err_ret;
+		}
+		ntfs_bzero(record, s1);
+		/* Magic */
+		ntfs_memcpy(record, "INDX", 4);
+		/* Offset to fixups */
+		NTFS_PUTU16(record + 4, 0x28);
+		/* Number of fixups. */
+		NTFS_PUTU16(record + 6, nr_fix);
+		/* Log file sequence number - We don't do journalling so we
+		 * just set it to zero which should be the Right Thing. (AIA) */
+		NTFS_PUTU64(record + 8, 0);
+		/* VCN of buffer */
+		NTFS_PUTU64(record + 0x10, walk->newblock);
+		/* Header size. */
+		hsize = 0x10 + 2 * nr_fix;
+		hsize = (hsize + 7) & ~7; /* Align. */
+		NTFS_PUTU16(record + 0x18, hsize);
+		/* Total size of record. */
+		NTFS_PUTU32(record + 0x20, s1 - 0x18);
+		/* Writing the data will extend the attribute. */
+		io.param = record;
+		io.size = s1;
+		io.do_read = 0;
+		error = ntfs_readwrite_attr(walk->dir, allocation, size, &io);
+		ntfs_free(record);
+		if (error || (io.size != s1 && (error = -EIO, 1)))
+			goto err_ret;
+		error = ntfs_update_inode(walk->dir);
+		if (error)
+			goto err_ret;
+	}
+	return 0;
+err_unl_out:
+	unlock_kernel();
+err_fb_out:
+	ntfs_free(bmap);
+err_ret:
+	return error;
+}
+
+/* Write an index block (root or allocation) back to storage.
+ * Used is the total number of bytes in buf, including all headers. */
+static int ntfs_index_writeback(ntfs_iterate_s *walk, ntfs_u8 *buf, int block,
+				int used)
+{
+	ntfs_io io;
+	int error;
+	ntfs_attribute *a;
+	ntfs_volume *vol = walk->dir->vol;
+	
+	io.fn_put = 0;
+	io.fn_get = ntfs_get;
+	io.param = buf;
+	if (block == -1) {	/* Index root. */
+		NTFS_PUTU16(buf + 0x14, used - 0x10);
+		/* 0x18 is a copy thereof. */
+		NTFS_PUTU16(buf + 0x18, used - 0x10);
+		io.size = used;
+		error = ntfs_write_attr(walk->dir, vol->at_index_root, I30, 0,
+					&io);
+		if (error || (io.size != used && (error = -EIO, 1)))
+			return error;
+		/* Shrink if necessary. */
+		a = ntfs_find_attr(walk->dir, vol->at_index_root, I30);
+		ntfs_resize_attr(walk->dir, a, used);
+	} else {
+		NTFS_PUTU16(buf + 0x1C, used - 0x18);
+		io.size = walk->dir->u.index.recordsize;
+		error = ntfs_insert_fixups(buf, io.size);
+		if (error) {
+			printk(KERN_ALERT "NTFS: ntfs_index_writeback() caught "
+					"corrupt index record ntfs record "
+					"header. Refusing to write corrupt "
+					"data to disk. Unmount and run chkdsk "
+					"immediately!\n");
+			return -EIO;
+		}
+		error = ntfs_write_attr(walk->dir, vol->at_index_allocation,
+				I30, (__s64)block << vol->cluster_size_bits,
+				&io);
+		if (error || (io.size != walk->dir->u.index.recordsize &&
+				(error = -EIO, 1)))
+			return error;
+	}
+	return 0;
+}
+
+static int ntfs_split_record(ntfs_iterate_s *walk, char *start, int bsize,
+			     int usize)
+{
+	char *entry, *prev;
+	ntfs_u8 *newbuf = 0, *middle = 0;
+	int error, othersize, mlen;
+	ntfs_io io;
+	ntfs_volume *vol = walk->dir->vol;
+	int oldblock;
+
+	error = ntfs_allocate_index_block(walk);
+	if (error)
+		return error;
+	/* This should not happen. */
+	if (walk->block == -1) {
+		ntfs_error("Trying to split root");
+		return -EOPNOTSUPP;
+	}
+	entry = start + NTFS_GETU16(start + 0x18) + 0x18; 
+	for (prev = entry; entry - start < usize / 2; 
+					       entry += NTFS_GETU16(entry + 8))
+		prev = entry;
+	newbuf = ntfs_malloc(vol->index_record_size);
+	if (!newbuf)
+		return -ENOMEM;
+	io.fn_put = ntfs_put;
+	io.fn_get = ntfs_get;
+	io.param = newbuf;
+	io.size = vol->index_record_size;
+	/* Read in old header. FIXME: Reading everything is overkill. */
+	error = ntfs_read_attr(walk->dir, vol->at_index_allocation, I30,
+			(__s64)walk->newblock << vol->cluster_size_bits, &io);
+	if (error)
+		goto out;
+	if (io.size != vol->index_record_size) {
+		error = -EIO;
+		goto out;
+	}
+	/* FIXME: Adjust header. */
+	/* Copy everything from entry to new block. */
+	othersize = usize - (entry - start);
+	ntfs_memcpy(newbuf + NTFS_GETU16(newbuf + 0x18) + 0x18, entry,
+								    othersize);
+	/* Copy flags. */
+	NTFS_PUTU32(newbuf + 0x24, NTFS_GETU32(start + 0x24));
+	error = ntfs_index_writeback(walk, newbuf, walk->newblock,
+				othersize + NTFS_GETU16(newbuf + 0x18) + 0x18);
+	if (error)
+		goto out;
+	/* Move prev to walk. */
+	mlen = NTFS_GETU16(prev + 0x8);
+	/* Remember old child node. */
+	if (ntfs_entry_has_subnodes(prev))
+		oldblock = NTFS_GETU32(prev + mlen - 8);
+	else
+		oldblock = -1;
+	/* Allow for pointer to subnode. */
+	middle = ntfs_malloc(ntfs_entry_has_subnodes(prev) ? mlen : mlen + 8);
+	if (!middle){
+		error = -ENOMEM;
+		goto out;
+	}
+	ntfs_memcpy(middle, prev, mlen);
+	/* Set has_subnodes flag. */
+	NTFS_PUTU8(middle + 0xC, NTFS_GETU8(middle + 0xC) | 1);
+	/* Middle entry points to block, parent entry will point to newblock. */
+	NTFS_PUTU64(middle + mlen - 8, walk->block);
+	if (walk->new_entry)
+		ntfs_error("Entry not reset");
+	walk->new_entry = middle;
+	walk->u.flags |= ITERATE_SPLIT_DONE;
+	/* Terminate old block. */
+	othersize = usize - (prev-start);
+	NTFS_PUTU64(prev, 0);
+	if (oldblock == -1) {
+		NTFS_PUTU32(prev + 8, 0x10);
+		NTFS_PUTU32(prev + 0xC, 2);
+		othersize += 0x10;
+	} else {
+		NTFS_PUTU32(prev + 8, 0x18);
+		NTFS_PUTU32(prev + 0xC, 3);
+		NTFS_PUTU64(prev + 0x10, oldblock);
+		othersize += 0x18;
+	}
+	/* Write back original block. */
+	error = ntfs_index_writeback(walk, start, walk->block, othersize);
+ out:
+	if (newbuf)
+		ntfs_free(newbuf);
+	if (middle)
+		ntfs_free(middle);
+	return error;
+}
+
+static int ntfs_dir_insert(ntfs_iterate_s *walk, char *start, char* entry)
+{
+	int blocksize, usedsize, error, offset;
+	int do_split = 0;
+	offset = entry - start;
+	if (walk->block == -1) { /* index root */
+		blocksize = walk->dir->vol->mft_record_size;
+		usedsize = NTFS_GETU16(start + 0x14) + 0x10;
+	} else {
+		blocksize = walk->dir->u.index.recordsize;
+		usedsize = NTFS_GETU16(start + 0x1C) + 0x18;
+	}
+	if (usedsize + walk->new_entry_size > blocksize) {
+		char* s1 = ntfs_malloc(blocksize + walk->new_entry_size);
+		if (!s1)
+			return -ENOMEM;
+		ntfs_memcpy(s1, start, usedsize);
+		do_split = 1;
+		/* Adjust entry to s1. */
+		entry = s1 + (entry - start);
+		start = s1;
+	}
+	ntfs_memmove(entry + walk->new_entry_size, entry, usedsize - offset);
+	ntfs_memcpy(entry, walk->new_entry, walk->new_entry_size);
+	usedsize += walk->new_entry_size;
+	ntfs_free(walk->new_entry);
+	walk->new_entry = 0;
+	if (do_split) {
+		error = ntfs_split_record(walk, start, blocksize, usedsize);
+		ntfs_free(start);
+	} else {
+		error = ntfs_index_writeback(walk, start, walk->block,usedsize);
+		if (error)
+			return error;
+	}
+	return 0;
+}
+
+/* Try to split INDEX_ROOT attributes. Return -E2BIG if nothing changed. */
+int ntfs_split_indexroot(ntfs_inode *ino)
+{
+	ntfs_attribute *ra;
+	ntfs_u8 *root = 0, *index = 0;
+	ntfs_io io;
+	int error, off, i, bsize, isize;
+	ntfs_iterate_s walk;
+
+	ra = ntfs_find_attr(ino, ino->vol->at_index_root, I30);
+	if (!ra)
+		return -ENOTDIR;
+	bsize = ino->vol->mft_record_size;
+	root = ntfs_malloc(bsize);
+	if (!root)
+		return -E2BIG;
+	io.fn_put = ntfs_put;
+	io.param = root;
+	io.size = bsize;
+	error = ntfs_read_attr(ino, ino->vol->at_index_root, I30, 0, &io);
+	if (error)
+		goto out;
+	off = 0x20;
+	/* Count number of entries. */
+	for (i = 0; ntfs_entry_is_used(root + off); i++)
+		off += NTFS_GETU16(root + off + 8);
+	if (i <= 2) {
+		/* We don't split small index roots. */
+		error = -E2BIG;
+		goto out;
+	}
+	index = ntfs_malloc(ino->vol->index_record_size);
+	if (!index) {
+		error = -ENOMEM;
+		goto out;
+	}
+	walk.dir = ino;
+	walk.block = -1;
+	walk.result = walk.new_entry = 0;
+	walk.name = 0;
+	error = ntfs_allocate_index_block(&walk);
+	if (error)
+		goto out;
+	/* Write old root to new index block. */
+	io.param = index;
+	io.size = ino->vol->index_record_size;
+	error = ntfs_read_attr(ino, ino->vol->at_index_allocation, I30,
+		(__s64)walk.newblock << ino->vol->cluster_size_bits, &io);
+	if (error)
+		goto out;
+	isize = NTFS_GETU16(root + 0x18) - 0x10;
+	ntfs_memcpy(index + NTFS_GETU16(index + 0x18) + 0x18, root+0x20, isize);
+	/* Copy flags. */
+	NTFS_PUTU32(index + 0x24, NTFS_GETU32(root + 0x1C));
+	error = ntfs_index_writeback(&walk, index, walk.newblock, 
+				     isize + NTFS_GETU16(index + 0x18) + 0x18);
+	if (error)
+		goto out;
+	/* Mark root as split. */
+	NTFS_PUTU32(root + 0x1C, 1);
+	/* Truncate index root. */
+	NTFS_PUTU64(root + 0x20, 0);
+	NTFS_PUTU32(root + 0x28, 0x18);
+	NTFS_PUTU32(root + 0x2C, 3);
+	NTFS_PUTU64(root + 0x30, walk.newblock);
+	error = ntfs_index_writeback(&walk, root, -1, 0x38);
+ out:
+	ntfs_free(root);
+	ntfs_free(index);
+	return error;
+}
+
+/* The entry has been found. Copy the result in the caller's buffer */
+static int ntfs_copyresult(char *dest, char *source)
+{
+	int length = NTFS_GETU16(source + 8);
+	ntfs_memcpy(dest, source, length);
+	return 1;
+}
+
+/* Use $UpCase some day. */
+static inline unsigned short ntfs_my_toupper(ntfs_volume *vol, ntfs_u16 x)
+{
+	/* We should read any pending rest of $UpCase here. */
+	if (x >= vol->upcase_length)
+		return x;
+	return vol->upcase[x];
+}
+
+/* Everything passed in walk and entry. */
+static int ntfs_my_strcmp(ntfs_iterate_s *walk, const unsigned char *entry)
+{
+	int lu = *(entry + 0x50);
+	int i;
+
+	ntfs_u16* name = (ntfs_u16*)(entry + 0x52);
+	ntfs_volume *vol = walk->dir->vol;
+	for (i = 0; i < lu && i < walk->namelen; i++)
+		if (ntfs_my_toupper(vol, NTFS_GETU16(name + i)) != 
+			     ntfs_my_toupper(vol, NTFS_GETU16(walk->name + i)))
+			break;
+	if (i == lu && i == walk->namelen)
+		return 0;
+	if (i == lu)
+		return 1;
+	if (i == walk->namelen)
+		return -1;
+	if (ntfs_my_toupper(vol, NTFS_GETU16(name + i)) < 
+			    ntfs_my_toupper(vol, NTFS_GETU16(walk->name + i)))
+		return 1;
+	return -1;
+}
+
+/* Necessary forward declaration. */
+static int ntfs_getdir_iterate(ntfs_iterate_s *walk, char *start, char *entry);
+
+/* Parse a block of entries. Load the block, fix it up, and iterate over the
+ * entries. The block is given as virtual cluster number. */
+static int ntfs_getdir_record(ntfs_iterate_s *walk, int block)
+{
+	int length = walk->dir->u.index.recordsize;
+	char *record = (char*)ntfs_malloc(length);
+	char *offset;
+	int retval,error;
+	int oldblock;
+	ntfs_io io;
+
+	if (!record)
+		return -ENOMEM;
+	io.fn_put = ntfs_put;
+	io.param = record;
+	io.size = length;
+	/* Read the block from the index allocation attribute. */
+	error = ntfs_read_attr(walk->dir, walk->dir->vol->at_index_allocation,
+		I30, (__s64)block << walk->dir->vol->cluster_size_bits, &io);
+	if (error || io.size != length) {
+		ntfs_error("read failed\n");
+		ntfs_free(record);
+		return 0;
+	}
+	if (!ntfs_check_index_record(walk->dir, record)) {
+		ntfs_error("%x is not an index record\n", block);
+		ntfs_free(record);
+		return 0;
+	}
+	offset = record + NTFS_GETU16(record + 0x18) + 0x18;
+	oldblock = walk->block;
+	walk->block = block;
+	retval = ntfs_getdir_iterate(walk, record, offset);
+	walk->block = oldblock;
+	ntfs_free(record);
+	return retval;
+}
+
+/* Go down to the next block of entries. These collate before the current
+ * entry. */
+static int ntfs_descend(ntfs_iterate_s *walk, ntfs_u8 *start, ntfs_u8 *entry)
+{
+	int length = NTFS_GETU16(entry + 8);
+	int nextblock = NTFS_GETU32(entry + length - 8);
+	int error;
+
+	if (!ntfs_entry_has_subnodes(entry)) {
+		ntfs_error("illegal ntfs_descend call\n");
+		return 0;
+	}
+	error = ntfs_getdir_record(walk, nextblock);
+	if (!error && walk->type == DIR_INSERT && 
+	    (walk->u.flags & ITERATE_SPLIT_DONE)) {
+		/* Split has occurred. Adjust entry, insert new_entry. */
+		NTFS_PUTU32(entry + length - 8, walk->newblock);
+		/* Reset flags, as the current block might be split again. */
+		walk->u.flags &= ~ITERATE_SPLIT_DONE;
+		error = ntfs_dir_insert(walk, start, entry);
+	}
+	return error;
+}
+
+static int ntfs_getdir_iterate_byposition(ntfs_iterate_s *walk, char* start,
+					  char *entry)
+{
+	int retval = 0;
+	int curpos = 0, destpos = 0;
+	int length;
+	if (walk->u.pos != 0) {
+		if (ntfs_is_top(walk->u.pos))
+			return 0;
+		destpos = ntfs_pop(&walk->u.pos);
+	}
+	while (1) {
+		if (walk->u.pos == 0) {
+			if (ntfs_entry_has_subnodes(entry))
+				ntfs_descend(walk, start, entry);
+			else
+				walk->u.pos = ntfs_top();
+			if (ntfs_is_top(walk->u.pos) && 
+			    !ntfs_entry_is_used(entry))
+				return 1;
+			walk->u.pos = ntfs_push(walk->u.pos, curpos);
+			return 1;
+		}
+		if (curpos == destpos) {
+			if (!ntfs_is_top(walk->u.pos) && 
+			    ntfs_entry_has_subnodes(entry)) {
+				retval = ntfs_descend(walk, start, entry);
+				if (retval) {
+					walk->u.pos = ntfs_push(walk->u.pos,
+								curpos);
+					return retval;
+				}
+				if (!ntfs_entry_is_used(entry))
+					return 0;
+				walk->u.pos = 0;
+			}
+			if (ntfs_entry_is_used(entry)) {
+				retval = ntfs_copyresult(walk->result, entry);
+				walk->u.pos = 0;
+			} else {
+				walk->u.pos = ntfs_top();
+				return 0;
+			}
+		}
+		curpos++;
+		if (!ntfs_entry_is_used(entry))
+			break;
+		length = NTFS_GETU16(entry + 8);
+		if (!length) {
+			ntfs_error("infinite loop\n");
+			break;
+		}
+		entry += length;
+	}
+	return -1;
+}
+	
+/* Iterate over a list of entries, either from an index block, or from the
+ * index root.
+ * If searching BY_POSITION, pop the top index from the position. If the
+ * position stack is empty then, return the item at the index and set the
+ * position to the next entry. If the position stack is not empty, 
+ * recursively proceed for subnodes. If the entry at the position is the
+ * 'end of dir' entry, return 'not found' and the empty stack.
+ * If searching BY_NAME, walk through the items until found or until
+ * one item is collated after the requested item. In the former case, return
+ * the result. In the latter case, recursively proceed to the subnodes.
+ * If 'end of dir' is reached, the name is not in the directory */
+static int ntfs_getdir_iterate(ntfs_iterate_s *walk, char *start, char *entry)
+{
+	int length;
+	int cmp;
+
+	if (walk->type == BY_POSITION)
+		return ntfs_getdir_iterate_byposition(walk, start, entry);
+	do {
+		/* If the current entry is a real one, compare with the
+		 * requested item. If the current entry is the last item, it
+		 * is always larger than the requested item. */
+		cmp = ntfs_entry_is_used(entry) ? 
+						ntfs_my_strcmp(walk,entry) : -1;
+		switch (walk->type) {
+		case BY_NAME:
+			switch (cmp) {
+			case -1:
+				return ntfs_entry_has_subnodes(entry) ?
+					ntfs_descend(walk, start, entry) : 0;
+			case  0:
+				return ntfs_copyresult(walk->result, entry);
+			case  1:
+				break;
+			}
+			break;
+		case DIR_INSERT:
+			switch (cmp) {
+			case -1:
+				return ntfs_entry_has_subnodes(entry) ?
+					ntfs_descend(walk, start, entry) :
+					ntfs_dir_insert(walk, start, entry);
+			case  0:
+				return -EEXIST;
+			case  1:
+				break;
+			}
+			break;
+		default:
+			ntfs_error("TODO\n"); /* FIXME: ? */
+		}
+		if (!ntfs_entry_is_used(entry))
+			break;
+		length = NTFS_GETU16(entry + 8);
+		if (!length) {
+			ntfs_error("infinite loop\n");
+			break;
+		}
+		entry += length;
+	} while (1);
+	return 0;
+}
+
+/*  Tree walking is done using position numbers. The following numbers have a
+ *  special meaning:
+ *       0   start (.)
+ *      -1   no more entries
+ *      -2   ..
+ *  All other numbers encode sequences of indices. The sequence a, b, c is 
+ *  encoded as <stop><c><b><a>, where <foo> is the encoding of foo. The
+ *  first few integers are encoded as follows:
+ *      0:    0000    1:    0010    2:    0100    3:    0110
+ *      4:    1000    5:    1010    6:    1100 stop:    1110
+ *      7:  000001    8:  000101    9:  001001   10:  001101
+ *  The least significant bits give the width of this encoding, the other bits
+ *  encode the value, starting from the first value of the interval.
+ *   tag     width  first value  last value
+ *   0       3      0            6
+ *   01      4      7            22
+ *   011     5      23           54
+ *   0111    6      55           119
+ *   More values are hopefully not needed, as the file position has currently
+ *   64 bits in total. */
+
+/* Find an entry in the directory. Return 0 if not found, otherwise copy the
+ * entry to the result buffer. */
+int ntfs_getdir(ntfs_iterate_s *walk)
+{
+	int length = walk->dir->vol->mft_record_size;
+	int retval, error;
+	/* Start at the index root. */
+	char *root = ntfs_malloc(length);
+	ntfs_io io;
+
+	if (!root)
+		return -ENOMEM;
+	io.fn_put = ntfs_put;
+	io.param = root;
+	io.size = length;
+	error = ntfs_read_attr(walk->dir, walk->dir->vol->at_index_root, I30,
+			       0, &io);
+	if (error) {
+		ntfs_error("Not a directory\n");
+		return 0;
+	}
+	walk->block = -1;
+	/* FIXME: Move these to walk. */
+	walk->dir->u.index.recordsize = NTFS_GETU32(root + 0x8);
+	walk->dir->u.index.clusters_per_record = NTFS_GETU32(root + 0xC);
+	/* FIXME: Consistency check. */
+	/* Skip header. */
+	retval = ntfs_getdir_iterate(walk, root, root + 0x20);
+	ntfs_free(root);
+	return retval;
+}
+
+/* Find an entry in the directory by its position stack. Iteration starts
+ * if the stack is 0, in which case the position is set to the first item
+ * in the directory. If the position is nonzero, return the item at the
+ * position and change the position to the next item. The position is -1
+ * if there are no more items. */
+int ntfs_getdir_byposition(ntfs_iterate_s *walk)
+{
+	walk->type = BY_POSITION;
+	return ntfs_getdir(walk);
+}
+
+/* Find an entry in the directory by its name. Return 0 if not found. */
+int ntfs_getdir_byname(ntfs_iterate_s *walk)
+{
+	walk->type = BY_NAME;
+	return ntfs_getdir(walk);
+}
+
+int ntfs_getdir_unsorted(ntfs_inode *ino, u32 *p_high, u32 *p_low,
+		int (*cb)(ntfs_u8 *, void *), void *param)
+{
+	s64 ib_ofs;
+	char *buf = 0, *entry = 0;
+	ntfs_attribute *attr;
+	ntfs_volume *vol;
+	int byte, bit, err = 0;
+	u32 start, finish, ibs, max_size;
+	ntfs_io io;
+	u8 ibs_bits;
+
+	if (!ino) {
+		ntfs_error("%s(): No inode! Returning -EINVAL.\n",__FUNCTION__);
+		return -EINVAL;
+	}
+	vol = ino->vol;
+	if (!vol) {
+		ntfs_error("%s(): Inode 0x%lx has no volume. Returning "
+			    "-EINVAL.\n", __FUNCTION__, ino->i_number);
+		return -EINVAL;
+	}
+	ntfs_debug(DEBUG_DIR3, "%s(): Unsorted 1: Entering for inode 0x%lx, "
+			"p_high = 0x%x, p_low = 0x%x.\n", __FUNCTION__,
+			ino->i_number, *p_high, *p_low);
+	if (!*p_high) {
+		/* We are still in the index root. */
+		buf = ntfs_malloc(io.size = vol->mft_record_size);
+		if (!buf)
+			return -ENOMEM;
+		io.fn_put = ntfs_put;
+		io.param = buf;
+		err = ntfs_read_attr(ino, vol->at_index_root, I30, 0, &io);
+		if (err || !io.size)
+			goto read_err_ret;
+		ino->u.index.recordsize = ibs = NTFS_GETU32(buf + 0x8);
+		ino->u.index.clusters_per_record = NTFS_GETU32(buf + 0xC);
+		entry = buf + 0x20;
+		ntfs_debug(DEBUG_DIR3, "%s(): Unsorted 2: In index root.\n",
+				__FUNCTION__);
+		ibs_bits = ffs(ibs) - 1;
+		/* Compensate for faked "." and "..". */
+		start = 2;
+	} else { /* We are in an index record. */
+		io.size = ibs = ino->u.index.recordsize;
+		buf = ntfs_malloc(ibs);
+		if (!buf)
+			return -ENOMEM;
+		ibs_bits = ffs(ibs) - 1;
+		io.fn_put = ntfs_put;
+		io.param = buf;
+		/*
+		 * 0 is index root, index allocation starts at 1 and works in
+		 * units of index block size (ibs).
+		 */
+		ib_ofs = (s64)(*p_high - 1) << ibs_bits;
+		err = ntfs_read_attr(ino, vol->at_index_allocation, I30, ib_ofs,
+				&io);
+		if (err || io.size != ibs)
+			goto read_err_ret;
+		if (!ntfs_check_index_record(ino, buf)) {
+			ntfs_error("%s(): Index block 0x%x is not an index "
+					"record. Returning -ENOTDIR.\n",
+					 __FUNCTION__, *p_high - 1);
+			ntfs_free(buf);
+			return -ENOTDIR;
+		}
+		entry = buf + 0x18 + NTFS_GETU16(buf + 0x18);
+		ntfs_debug(DEBUG_DIR3, "%s(): Unsorted 3: In index "
+				"allocation.\n", __FUNCTION__);
+		start = 0;
+	}
+	/* Process the entries. */
+	finish = *p_low;
+	for (; entry < (buf + ibs) && ntfs_entry_is_used(entry);
+			entry += NTFS_GETU16(entry + 8)) {
+		if (start < finish) {
+			/* Skip entries that were already processed. */
+			ntfs_debug(DEBUG_DIR3, "%s(): Unsorted 4: Skipping "
+					"already processed entry p_high 0x%x, "
+					"p_low 0x%x.\n", __FUNCTION__, *p_high,
+					start);
+			start++;
+			continue;
+		}
+		ntfs_debug(DEBUG_DIR3, "%s(): Unsorted 5: Processing entry "
+				"p_high 0x%x, p_low 0x%x.\n", __FUNCTION__,
+				*p_high, *p_low);
+		if ((err = cb(entry, param))) {
+			/* filldir signalled us to stop. */
+			ntfs_debug(DEBUG_DIR3, "%s(): Unsorted 6: cb returned "
+					"%i, returning 0, p_high 0x%x, "
+					"p_low 0x%x.\n", __FUNCTION__, err,
+					*p_high, *p_low);
+			ntfs_free(buf);
+			return 0;
+		}
+		++*p_low;
+	}
+	ntfs_debug(DEBUG_DIR3, "%s(): Unsorted 7: After processing entries, "
+			"p_high 0x%x, p_low 0x%x.\n", __FUNCTION__, *p_high,
+			*p_low);
+	/* We have to locate the next record. */
+	ntfs_free(buf);
+	buf = 0;
+	*p_low = 0;
+	attr = ntfs_find_attr(ino, vol->at_bitmap, I30);
+	if (!attr) {
+		/* Directory does not have index bitmap and index allocation. */
+		*p_high = 0x7fff;
+		ntfs_debug(DEBUG_DIR3, "%s(): Unsorted 8: No index allocation. "
+				"Returning 0, p_high 0x7fff, p_low 0x0.\n",
+				__FUNCTION__);
+		return 0;
+	}
+	max_size = attr->size;
+	if (max_size > 0x7fff >> 3) {
+		ntfs_error("%s(): Directory too large. Visible "
+				"length is truncated.\n", __FUNCTION__);
+		max_size = 0x7fff >> 3;
+	}
+	buf = ntfs_malloc(max_size);
+	if (!buf)
+		return -ENOMEM;
+	io.param = buf;
+	io.size = max_size;
+	err = ntfs_read_attr(ino, vol->at_bitmap, I30, 0, &io);
+	if (err || io.size != max_size)
+		goto read_err_ret;
+	attr = ntfs_find_attr(ino, vol->at_index_allocation, I30);
+	if (!attr) {
+		ntfs_free(buf);
+		ntfs_debug(DEBUG_DIR3, "%s(): Unsorted 9: Find attr failed. "
+				"Returning -EIO.\n", __FUNCTION__);
+		return -EIO;
+	}
+	if (attr->resident) {
+		ntfs_free(buf);
+		ntfs_debug(DEBUG_DIR3, "%s(): Unsorted 9.5: IA is resident. Not"
+				" allowed. Returning EINVAL.\n", __FUNCTION__);
+		return -EINVAL;
+	}
+	/* Loop while going through non-allocated index records. */
+	max_size <<= 3;
+	while (1) {
+		if (++*p_high >= 0x7fff) {
+			ntfs_error("%s(): Unsorted 10: Directory "
+					"inode 0x%lx overflowed the maximum "
+					"number of index allocation buffers "
+					"the driver can cope with. Pretending "
+					"to be at end of directory.\n",
+					__FUNCTION__, ino->i_number);
+			goto fake_eod;
+		}
+		if (*p_high > max_size || (s64)*p_high << ibs_bits >
+				attr->initialized) {
+fake_eod:
+			/* No more index records. */
+			*p_high = 0x7fff;
+			*p_low = 0;
+			ntfs_free(buf);
+			ntfs_debug(DEBUG_DIR3, "%s(): Unsorted 10.5: No more "
+					"index records. Returning 0, p_high "
+					"0x7fff, p_low 0.\n", __FUNCTION__);
+			return 0;
+		}
+		byte = (ntfs_cluster_t)(*p_high - 1);
+		bit = 1 << (byte & 7);
+		byte >>= 3;
+		if ((buf[byte] & bit))
+			break;
+	};
+	ntfs_debug(DEBUG_DIR3, "%s(): Unsorted 11: Done. Returning 0, p_high "
+			"0x%x, p_low 0x%x.\n", __FUNCTION__, *p_high, *p_low);
+	ntfs_free(buf);
+	return 0;
+read_err_ret:
+	if (!err)
+		err = -EIO;
+	ntfs_error("%s(): Read failed. Returning error code %i.\n",
+			__FUNCTION__, err);
+	ntfs_free(buf);
+	return err;
+}
+
+int ntfs_dir_add(ntfs_inode *dir, ntfs_inode *new, ntfs_attribute *name)
+{
+	ntfs_iterate_s walk;
+	int nsize, esize;
+	ntfs_u8* entry, *ndata;
+	int error;
+
+	walk.type = DIR_INSERT;
+	walk.dir = dir;
+	walk.u.flags = 0;
+	nsize = name->size;
+	ndata = name->d.data;
+	walk.name = (ntfs_u16*)(ndata + 0x42);
+	walk.namelen = NTFS_GETU8(ndata + 0x40);
+	walk.new_entry_size = esize = (nsize + 0x10 + 7) & ~7;
+	walk.new_entry = entry = ntfs_malloc(esize);
+	if (!entry)
+		return -ENOMEM;
+	NTFS_PUTINUM(entry, new);
+	NTFS_PUTU16(entry + 0x8, esize); /* Size of entry. */
+	NTFS_PUTU16(entry + 0xA, nsize); /* Size of original name attribute. */
+	NTFS_PUTU16(entry + 0xC, 0);     /* Flags. */
+	NTFS_PUTU16(entry + 0xE, 0);	 /* Reserved. */
+	ntfs_memcpy(entry + 0x10, ndata, nsize);
+	ntfs_bzero(entry + 0x10 + nsize, esize - 0x10 - nsize);
+	error = ntfs_getdir(&walk);
+	if (walk.new_entry)
+		ntfs_free(walk.new_entry);
+	return error;
+}
+
+#if 0
+int ntfs_dir_add1(ntfs_inode *dir, const char* name, int namelen,
+		  ntfs_inode *ino)
+{
+	ntfs_iterate_s walk;
+	int error;
+	int nsize;
+	char *entry;
+	ntfs_attribute *name_attr;
+	error = ntfs_decodeuni(dir->vol, name, namelen, &walk.name,
+			       &walk.namelen);
+	if (error)
+		return error;
+	/* FIXME: Set flags. */
+	walk.type = DIR_INSERT;
+	walk.dir = dir;
+	/* walk.new = ino; */
+	/* Prepare new entry. */
+	/* Round up to a multiple of 8. */
+	walk.new_entry_size = nsize = ((0x52 + 2 * walk.namelen + 7) / 8) * 8;
+	walk.new_entry = entry = ntfs_malloc(nsize);
+	if (!entry)
+		return -ENOMEM;
+	ntfs_bzero(entry, nsize);
+	NTFS_PUTINUM(entry, ino);
+	NTFS_PUTU16(entry + 8, nsize);
+	NTFS_PUTU16(entry + 0xA, 0x42 + 2 * namelen); /* FIXME: Size of name 
+						       * attribute. */
+	NTFS_PUTU32(entry + 0xC, 0); /* FIXME: D-F? */
+	name_attr = ntfs_find_attr(ino, vol->at_file_name, 0);
+						    /* FIXME: multiple names */
+	if (!name_attr || !name_attr->resident)
+		return -EIDRM;
+	/* Directory, file stamps, sizes, filename. */
+	ntfs_memcpy(entry + 0x10, name_attr->d.data, 0x42 + 2 * namelen);
+	error = ntfs_getdir(&walk);
+	ntfs_free(walk.name);
+	return error;
+}
+#endif
+
+/* Fills out and creates an INDEX_ROOT attribute. */
+int ntfs_add_index_root(ntfs_inode *ino, int type)
+{
+	ntfs_attribute *da;
+	ntfs_u8 data[0x30]; /* 0x20 header, 0x10 last entry. */
+	char name[10];
+
+	NTFS_PUTU32(data, type);
+	/* Collation rule. 1 == COLLATION_FILENAME */
+	NTFS_PUTU32(data + 4, 1);
+	NTFS_PUTU32(data + 8, ino->vol->index_record_size);
+	NTFS_PUTU32(data + 0xC, ino->vol->index_clusters_per_record);
+	/* Byte offset to first INDEX_ENTRY. */
+	NTFS_PUTU32(data + 0x10, 0x10);
+	/* Size of entries, including header. */
+	NTFS_PUTU32(data + 0x14, 0x20);
+	NTFS_PUTU32(data + 0x18, 0x20);
+	/* No index allocation, yet. */
+	NTFS_PUTU32(data + 0x1C, 0);
+	/* Add last entry. */
+	/* Indexed MFT record. */
+	NTFS_PUTU64(data + 0x20, 0);
+	/* Size of entry. */
+	NTFS_PUTU32(data + 0x28, 0x10);
+	/* Flags: Last entry, no child nodes. */
+	NTFS_PUTU32(data + 0x2C, 2);
+	/* Compute name. */
+	ntfs_indexname(name, type);
+	return ntfs_create_attr(ino, ino->vol->at_index_root, name,
+				data, sizeof(data), &da);
+}
+
+int ntfs_mkdir(ntfs_inode *dir, const char *name, int namelen,
+	       ntfs_inode *result)
+{
+	int error;
+	
+	error = ntfs_alloc_inode(dir, result, name, namelen, NTFS_AFLAG_DIR);
+	if (error)
+		goto out;
+	error = ntfs_add_index_root(result, 0x30);
+	if (error)
+		goto out;
+	/* Set directory bit. */
+	result->attr[0x16] |= 2;
+	error = ntfs_update_inode(dir);
+	if (error)
+		goto out;
+	error = ntfs_update_inode(result);
+	if (error)
+		goto out;
+ out:
+	return error;
+}
+
diff --git a/fs/ntfs/dir.h b/fs/ntfs/dir.h
new file mode 100644
index 00000000000000..3ded6dca3fafb5
--- /dev/null
+++ b/fs/ntfs/dir.h
@@ -0,0 +1,48 @@
+/*
+ * dir.h - Header file for dir.c
+ *
+ * Copyright (C) 1997 Régis Duchesne
+ */
+#define ITERATE_SPLIT_DONE      1
+
+enum ntfs_iterate_e {
+    BY_POSITION,
+    BY_NAME,
+    DIR_INSERT
+};
+
+/* not all fields are used for all operations */
+typedef struct ntfs_iterate_s {
+	enum ntfs_iterate_e type;
+	ntfs_inode *dir;
+	union{
+		ntfs_u64 pos;
+		int flags;
+	}u;
+	char *result;      /* pointer to entry if found */
+	ntfs_u16* name;
+	int namelen;
+	int block;         /* current index record */
+	int newblock;      /* index record created in a split */
+	char *new_entry;
+	int new_entry_size;
+	/*ntfs_inode* new;*/
+} ntfs_iterate_s;
+
+int ntfs_getdir_unsorted(ntfs_inode *ino, ntfs_u32 *p_high, ntfs_u32* p_low,
+			 int (*cb)(ntfs_u8*, void*), void *param);
+
+int ntfs_getdir_byname(ntfs_iterate_s *walk);
+
+int ntfs_dir_add(ntfs_inode *dir, ntfs_inode *new, ntfs_attribute *name);
+
+int ntfs_check_index_record(ntfs_inode *ino, char *record);
+
+int ntfs_getdir_byposition(ntfs_iterate_s *walk);
+
+int ntfs_mkdir(ntfs_inode* dir,const char* name,int namelen, ntfs_inode *ino);
+
+int ntfs_split_indexroot(ntfs_inode *ino);
+
+int ntfs_add_index_root(ntfs_inode *ino, int type);
+
diff --git a/fs/ntfs/fs.c b/fs/ntfs/fs.c
new file mode 100644
index 00000000000000..167f45971f7e11
--- /dev/null
+++ b/fs/ntfs/fs.c
@@ -0,0 +1,1167 @@
+/*
+ * fs.c - NTFS driver for Linux 2.4.x
+ *
+ * Legato Systems, Inc. (http://www.legato.com) have sponsored Anton
+ * Altaparmakov to develop NTFS on Linux since June 2001.
+ *
+ * Copyright (C) 1995-1997, 1999 Martin von Löwis
+ * Copyright (C) 1996 Richard Russon
+ * Copyright (C) 1996-1997 Régis Duchesne
+ * Copyright (C) 2000-2001, Anton Altaparmakov (AIA)
+ */
+
+#include <linux/config.h>
+#include <linux/errno.h>
+#include "ntfstypes.h"
+#include "struct.h"
+#include "util.h"
+#include "inode.h"
+#include "super.h"
+#include "dir.h"
+#include "support.h"
+#include "macros.h"
+#include "sysctl.h"
+#include "attr.h"
+#include <linux/module.h>
+#include <asm/uaccess.h>
+#include <linux/locks.h>
+#include <linux/init.h>
+#include <linux/smp_lock.h>
+#include <linux/blkdev.h>
+#include <asm/page.h>
+#include <linux/nls.h>
+#include <linux/ntfs_fs.h>
+
+/* Forward declarations. */
+static struct inode_operations ntfs_dir_inode_operations;
+static struct file_operations ntfs_dir_operations;
+
+#define ITEM_SIZE 2040
+
+/* Io functions to user space. */
+static void ntfs_putuser(ntfs_io* dest, void *src, ntfs_size_t len)
+{
+	copy_to_user(dest->param, src, len);
+	dest->param += len;
+}
+
+#ifdef CONFIG_NTFS_RW
+struct ntfs_getuser_update_vm_s {
+	const char *user;
+	struct inode *ino;
+	loff_t off;
+};
+
+static void ntfs_getuser_update_vm(void *dest, ntfs_io *src, ntfs_size_t len)
+{
+	struct ntfs_getuser_update_vm_s *p = src->param;
+	
+	copy_from_user(dest, p->user, len);
+	p->user += len;
+	p->off += len;
+}
+#endif
+
+/* loff_t is 64 bit signed, so is cool. */
+static ssize_t ntfs_read(struct file *filp, char *buf, size_t count,loff_t *off)
+{
+	int error;
+	ntfs_io io;
+	ntfs_attribute *attr;
+	ntfs_inode *ino = NTFS_LINO2NINO(filp->f_dentry->d_inode);
+
+	/* Inode is not properly initialized. */
+	if (!ino)
+		return -EINVAL;
+	ntfs_debug(DEBUG_OTHER, "ntfs_read %x, %Lx, %x ->",
+		   (unsigned)ino->i_number, (unsigned long long)*off,
+		   (unsigned)count);
+	attr = ntfs_find_attr(ino, ino->vol->at_data, NULL);
+	/* Inode has no unnamed data attribute. */
+	if (!attr) {
+		ntfs_debug(DEBUG_OTHER, "ntfs_read: $DATA not found!\n");
+		return -EINVAL;
+	}
+	if (attr->flags & ATTR_IS_ENCRYPTED)
+		return -EACCES;
+	/* Read the data. */
+	io.fn_put = ntfs_putuser;
+	io.fn_get = 0;
+	io.param = buf;
+	io.size = count;
+	error = ntfs_read_attr(ino, ino->vol->at_data, NULL, *off, &io);
+	if (error && !io.size) {
+		ntfs_debug(DEBUG_OTHER, "ntfs_read: read_attr failed with "
+				"error %i, io size %u.\n", error, io.size);
+		return error;
+	}
+	*off += io.size;
+	ntfs_debug(DEBUG_OTHER, "ntfs_read: finished. read %u bytes.\n",
+								io.size);
+	return io.size;
+}
+
+#ifdef CONFIG_NTFS_RW
+static ssize_t ntfs_write(struct file *filp, const char *buf, size_t count,
+		loff_t *pos)
+{
+	int err;
+	struct inode *vfs_ino = filp->f_dentry->d_inode;
+	ntfs_inode *ntfs_ino = NTFS_LINO2NINO(vfs_ino);
+	ntfs_attribute *data;
+	ntfs_io io;
+	struct ntfs_getuser_update_vm_s param;
+
+	if (!ntfs_ino)
+		return -EINVAL;
+	ntfs_debug(DEBUG_LINUX, "%s(): Entering for inode 0x%lx, *pos 0x%Lx, "
+			"count 0x%x.\n", __FUNCTION__, ntfs_ino->i_number,
+			*pos, count);
+	/* Allows to lock fs ro at any time. */
+	if (vfs_ino->i_sb->s_flags & MS_RDONLY)
+		return -EROFS;
+	data = ntfs_find_attr(ntfs_ino, ntfs_ino->vol->at_data, NULL);
+	if (!data)
+		return -EINVAL;
+	/* Evaluating O_APPEND is the file system's job... */
+	if (filp->f_flags & O_APPEND)
+		*pos = vfs_ino->i_size;
+	if (!data->resident && *pos + count > data->allocated) {
+		err = ntfs_extend_attr(ntfs_ino, data, *pos + count);
+		if (err < 0)
+			return err;
+	}
+	param.user = buf;
+	param.ino = vfs_ino;
+	param.off = *pos;
+	io.fn_put = 0;
+	io.fn_get = ntfs_getuser_update_vm;
+	io.param = &param;
+	io.size = count;
+	io.do_read = 0;
+	err = ntfs_readwrite_attr(ntfs_ino, data, *pos, &io);
+	ntfs_debug(DEBUG_LINUX, "%s(): Returning %i\n", __FUNCTION__, -err);
+	if (!err) {
+		*pos += io.size;
+		if (*pos > vfs_ino->i_size)
+			vfs_ino->i_size = *pos;
+		mark_inode_dirty(vfs_ino);
+		return io.size;
+	}
+	return err;
+}
+#endif
+
+struct ntfs_filldir {
+	struct inode *dir;
+	filldir_t filldir;
+	unsigned int type;
+	u32 ph, pl;
+	void *dirent;
+	char *name;
+	int namelen;
+	int ret_code;
+};
+
+static int ntfs_printcb(ntfs_u8 *entry, void *param)
+{
+	unsigned long inum = NTFS_GETU64(entry) & 0xffffffffffff;
+	struct ntfs_filldir *nf = param;
+	u32 flags = NTFS_GETU32(entry + 0x48);
+	char show_sys_files = 0;
+	u8 name_len = NTFS_GETU8(entry + 0x50);
+	u8 name_type = NTFS_GETU8(entry + 0x51);
+	int err;
+	unsigned file_type;
+
+	switch (nf->type) {
+	case ngt_dos:
+		/* Don't display long names. */
+		if (!(name_type & 2))
+			return 0;
+		break;
+	case ngt_nt:
+		/* Don't display short-only names. */
+		if ((name_type & 3) == 2)
+			return 0;
+		break;
+	case ngt_posix:
+		break;
+	case ngt_full:
+		show_sys_files = 1;
+		break;
+	default:
+		BUG();
+	}
+	err = ntfs_encodeuni(NTFS_INO2VOL(nf->dir), (ntfs_u16*)(entry + 0x52),
+			name_len, &nf->name, &nf->namelen);
+	if (err) {
+		ntfs_debug(DEBUG_OTHER, "%s(): Skipping unrepresentable "
+				"file.\n", __FUNCTION__);
+		err = 0;
+		goto err_noname;
+	}
+	if (!show_sys_files && inum < 0x10UL) {
+		ntfs_debug(DEBUG_OTHER, "%s(): Skipping system file (%s).\n",
+				__FUNCTION__, nf->name);
+		err = 0;
+		goto err_ret;
+	}
+	/* Do not return ".", as this is faked. */
+	if (nf->namelen == 1 && nf->name[0] == '.') {
+		ntfs_debug(DEBUG_OTHER, "%s(): Skipping \".\"\n", __FUNCTION__);
+		err = 0;
+		goto err_ret;
+	}
+	nf->name[nf->namelen] = 0;
+	if (flags & 0x10000000) /* FILE_ATTR_DUP_FILE_NAME_INDEX_PRESENT */
+		file_type = DT_DIR;
+	else
+		file_type = DT_REG;
+	ntfs_debug(DEBUG_OTHER, "%s(): Calling filldir for %s with "
+			"len %i, f_pos 0x%Lx, inode %lu, %s.\n", __FUNCTION__,
+			nf->name, nf->namelen, (loff_t)(nf->ph << 16) | nf->pl,
+			inum, file_type == DT_DIR ? "DT_DIR" : "DT_REG");
+	/*
+	 * Userspace side of filldir expects an off_t rather than an loff_t.
+	 * And it also doesn't like the most significant bit being set as it
+	 * then considers the value to be negative. Thus this implementation
+	 * limits the number of index records to 32766, which should be plenty.
+	 */
+	err = nf->filldir(nf->dirent, nf->name, nf->namelen,
+			(loff_t)(nf->ph << 16) | nf->pl, inum, file_type);
+	if (err)
+		nf->ret_code = err;
+err_ret:
+	ntfs_free(nf->name);
+err_noname:
+	nf->namelen = 0;
+	nf->name = NULL;
+	return err;
+}
+
+/*
+ * readdir returns '.', then '..', then the directory entries in sequence.
+ * As the root directory contains an entry for itself, '.' is not emulated for
+ * the root directory.
+ */
+static int ntfs_readdir(struct file* filp, void *dirent, filldir_t filldir)
+{
+	struct inode *dir = filp->f_dentry->d_inode;
+	int err;
+	struct ntfs_filldir cb;
+
+	cb.ret_code = 0;
+	cb.pl = filp->f_pos & 0xffff;
+	cb.ph = (filp->f_pos >> 16) & 0x7fff;
+	filp->f_pos = (loff_t)(cb.ph << 16) | cb.pl;
+	ntfs_debug(DEBUG_OTHER, "%s(): Entering for inode %lu, f_pos 0x%Lx, "
+			"i_mode 0x%x, i_count %lu.\n", __FUNCTION__,
+			dir->i_ino, filp->f_pos, (unsigned int)dir->i_mode,
+			atomic_read(&dir->i_count));
+	if (!cb.ph) {
+		/* Start of directory. Emulate "." and "..". */
+		if (!cb.pl) {
+			ntfs_debug(DEBUG_OTHER, "%s(): Calling filldir for . "
+				    "with len 1, f_pos 0x%Lx, inode %lu, "
+				    "DT_DIR.\n", __FUNCTION__, filp->f_pos,
+				    dir->i_ino);
+			cb.ret_code = filldir(dirent, ".", 1, filp->f_pos,
+				    dir->i_ino, DT_DIR);
+			if (cb.ret_code)
+				goto done;
+			cb.pl++;
+			filp->f_pos = (loff_t)(cb.ph << 16) | cb.pl;
+		}
+		if (cb.pl == (u32)1) {
+			ntfs_debug(DEBUG_OTHER, "%s(): Calling filldir for .. "
+				    "with len 2, f_pos 0x%Lx, inode %lu, "
+				    "DT_DIR.\n", __FUNCTION__, filp->f_pos,
+				    filp->f_dentry->d_parent->d_inode->i_ino);
+			cb.ret_code = filldir(dirent, "..", 2, filp->f_pos,
+				    filp->f_dentry->d_parent->d_inode->i_ino,
+				    DT_DIR);
+			if (cb.ret_code)
+				goto done;
+			cb.pl++;
+			filp->f_pos = (loff_t)(cb.ph << 16) | cb.pl;
+		}
+	} else if (cb.ph >= 0x7fff)
+		/* End of directory. */
+		goto done;
+	cb.dir = dir;
+	cb.filldir = filldir;
+	cb.dirent = dirent;
+	cb.type = NTFS_INO2VOL(dir)->ngt;
+	do {
+		ntfs_debug(DEBUG_OTHER, "%s(): Looking for next file using "
+				"ntfs_getdir_unsorted(), f_pos 0x%Lx.\n",
+				__FUNCTION__, (loff_t)(cb.ph << 16) | cb.pl);
+		err = ntfs_getdir_unsorted(NTFS_LINO2NINO(dir), &cb.ph, &cb.pl,
+				ntfs_printcb, &cb);
+	} while (!err && !cb.ret_code && cb.ph < 0x7fff);
+	filp->f_pos = (loff_t)(cb.ph << 16) | cb.pl;
+	ntfs_debug(DEBUG_OTHER, "%s(): After ntfs_getdir_unsorted()"
+			" calls, f_pos 0x%Lx.\n", __FUNCTION__, filp->f_pos);
+	if (!err) {
+done:
+#ifdef DEBUG
+		if (!cb.ret_code)
+			ntfs_debug(DEBUG_OTHER, "%s(): EOD, f_pos 0x%Lx, "
+					"returning 0.\n", __FUNCTION__,
+					filp->f_pos);
+		else 
+			ntfs_debug(DEBUG_OTHER, "%s(): filldir returned %i, "
+					"returning 0, f_pos 0x%Lx.\n",
+					__FUNCTION__, cb.ret_code, filp->f_pos);
+#endif
+		return 0;
+	}
+	ntfs_debug(DEBUG_OTHER, "%s(): Returning %i, f_pos 0x%Lx.\n",
+			__FUNCTION__, err, filp->f_pos);
+	return err;
+}
+
+/* Copied from vfat driver. */
+static int simple_getbool(char *s, int *setval)
+{
+	if (s) {
+		if (!strcmp(s, "1") || !strcmp(s, "yes") || !strcmp(s, "true"))
+			*setval = 1;
+		else if (!strcmp(s, "0") || !strcmp(s, "no") ||
+							!strcmp(s, "false"))
+			*setval = 0;
+		else
+			return 0;
+	} else
+		*setval = 1;
+	return 1;
+}
+
+/*
+ * This needs to be outside parse_options() otherwise a remount will reset
+ * these unintentionally.
+ */
+static void init_ntfs_super_block(ntfs_volume* vol)
+{
+	vol->uid = vol->gid = 0;
+	vol->umask = 0077;
+	vol->ngt = ngt_nt;
+	vol->nls_map = (void*)-1;
+	vol->mft_zone_multiplier = -1;
+}
+
+/* Parse the (re)mount options. */
+static int parse_options(ntfs_volume *vol, char *opt)
+{
+	char *value;		/* Defaults if not specified and !remount. */
+	ntfs_uid_t uid = -1;	/* 0, root user only */
+	ntfs_gid_t gid = -1;	/* 0, root user only */
+	int umask = -1;		/* 0077, owner access only */
+	unsigned int ngt = -1;	/* ngt_nt */
+	void *nls_map = NULL;	/* Try to load the default NLS. */
+	int use_utf8 = -1;	/* If no NLS specified and loading the default
+				   NLS failed use utf8. */
+	int mft_zone_mul = -1;	/* 1 */
+
+	if (!opt)
+		goto done;
+	for (opt = strtok(opt, ","); opt; opt = strtok(NULL, ",")) {
+		if ((value = strchr(opt, '=')) != NULL)
+			*value ++= '\0';
+		if (strcmp(opt, "uid") == 0) {
+			if (!value || !*value)
+				goto needs_arg;
+			uid = simple_strtoul(value, &value, 0);
+			if (*value) {
+				printk(KERN_ERR "NTFS: uid invalid argument\n");
+				return 0;
+			}
+		} else if (strcmp(opt, "gid") == 0) {
+			if (!value || !*value)
+				goto needs_arg;
+			gid = simple_strtoul(value, &value, 0);
+			if (*value) {
+				printk(KERN_ERR "NTFS: gid invalid argument\n");
+				return 0;
+			}
+		} else if (strcmp(opt, "umask") == 0) {
+			if (!value || !*value)
+				goto needs_arg;
+			umask = simple_strtoul(value, &value, 0);
+			if (*value) {
+				printk(KERN_ERR "NTFS: umask invalid "
+						"argument\n");
+				return 0;
+			}
+		} else if (strcmp(opt, "mft_zone_multiplier") == 0) {
+			unsigned long ul;
+
+			if (!value || !*value)
+				goto needs_arg;
+			ul = simple_strtoul(value, &value, 0);
+			if (*value) {
+				printk(KERN_ERR "NTFS: mft_zone_multiplier "
+						"invalid argument\n");
+				return 0;
+			}
+			if (ul >= 1 && ul <= 4)
+				mft_zone_mul = ul;
+			else {
+				mft_zone_mul = 1;
+				printk(KERN_WARNING "NTFS: mft_zone_multiplier "
+					      "out of range. Setting to 1.\n");
+			}
+		} else if (strcmp(opt, "posix") == 0) {
+			int val;
+			if (!value || !*value)
+				goto needs_arg;
+			if (!simple_getbool(value, &val))
+				goto needs_bool;
+			ngt = val ? ngt_posix : ngt_nt;
+		} else if (strcmp(opt, "show_sys_files") == 0) {
+			int val = 0;
+			if (!value || !*value)
+				val = 1;
+			else if (!simple_getbool(value, &val))
+				goto needs_bool;
+			ngt = val ? ngt_full : ngt_nt;
+		} else if (strcmp(opt, "iocharset") == 0) {
+			if (!value || !*value)
+				goto needs_arg;
+			nls_map = load_nls(value);
+			if (!nls_map) {
+				printk(KERN_ERR "NTFS: charset not found");
+				return 0;
+			}
+		} else if (strcmp(opt, "utf8") == 0) {
+			int val = 0;
+			if (!value || !*value)
+				val = 1;
+			else if (!simple_getbool(value, &val))
+				goto needs_bool;
+			use_utf8 = val;
+		} else {
+			printk(KERN_ERR "NTFS: unkown option '%s'\n", opt);
+			return 0;
+		}
+	}
+done:
+	if (use_utf8 == -1) {
+		/* utf8 was not specified at all. */
+		if (!nls_map) {
+			/*
+			 * No NLS was specified. If first mount, load the
+			 * default NLS, otherwise don't change the NLS setting.
+			 */
+			if (vol->nls_map == (void*)-1)
+				vol->nls_map = load_nls_default();
+		} else {
+			/* If an NLS was already loaded, unload it first. */
+			if (vol->nls_map && vol->nls_map != (void*)-1)
+				unload_nls(vol->nls_map);
+			/* Use the specified NLS. */
+			vol->nls_map = nls_map;
+		}
+	} else {
+		/* utf8 was specified. */
+		if (use_utf8 && nls_map) {
+			unload_nls(nls_map);
+			printk(KERN_ERR "NTFS: utf8 cannot be combined with "
+					"iocharset.\n");
+			return 0;
+		}
+		/* If an NLS was already loaded, unload it first. */
+		if (vol->nls_map && vol->nls_map != (void*)-1)
+			unload_nls(vol->nls_map);
+		if (!use_utf8) {
+			/* utf8 was specified as false. */
+			if (!nls_map)
+				/* No NLS was specified, load the default. */
+				vol->nls_map = load_nls_default();
+			else
+				/* Use the specified NLS. */
+				vol->nls_map = nls_map;
+		} else
+			/* utf8 was specified as true. */
+			vol->nls_map = NULL;
+	}
+	if (uid != -1)
+		vol->uid = uid;
+	if (gid != -1)
+		vol->gid = gid;
+	if (umask != -1)
+		vol->umask = (ntmode_t)umask;
+	if (ngt != -1)
+		vol->ngt = ngt;
+	if (mft_zone_mul != -1) {
+		/* mft_zone_multiplier was specified. */
+		if (vol->mft_zone_multiplier != -1) {
+			/* This is a remount, ignore a change and warn user. */
+			if (vol->mft_zone_multiplier != mft_zone_mul)
+				printk(KERN_WARNING "NTFS: Ignoring changes in "
+						"mft_zone_multiplier on "
+						"remount. If you want to "
+						"change this you need to "
+						"umount and mount again.\n");
+		} else
+			/* Use the specified multiplier. */
+			vol->mft_zone_multiplier = mft_zone_mul;
+	} else if (vol->mft_zone_multiplier == -1)
+		/* No multiplier specified and first mount, so set default. */
+		vol->mft_zone_multiplier = 1;
+	return 1;
+needs_arg:
+	printk(KERN_ERR "NTFS: %s needs an argument", opt);
+	return 0;
+needs_bool:
+	printk(KERN_ERR "NTFS: %s needs boolean argument", opt);
+	return 0;
+}
+			
+static struct dentry *ntfs_lookup(struct inode *dir, struct dentry *d)
+{
+	struct inode *res = 0;
+	char *item = 0;
+	ntfs_iterate_s walk;
+	int err;
+	
+	ntfs_debug(DEBUG_NAME1, "%s(): Looking up %s in directory ino 0x%x.\n",
+			__FUNCTION__, d->d_name.name, (unsigned)dir->i_ino);
+	walk.name = NULL;
+	walk.namelen = 0;
+	/* Convert to wide string. */
+	err = ntfs_decodeuni(NTFS_INO2VOL(dir), (char*)d->d_name.name,
+			       d->d_name.len, &walk.name, &walk.namelen);
+	if (err)
+		goto err_ret;
+	item = ntfs_malloc(ITEM_SIZE);
+	if (!item) {
+		err = -ENOMEM;
+		goto err_ret;
+	}
+	/* ntfs_getdir will place the directory entry into item, and the first
+	 * long long is the MFT record number. */
+	walk.type = BY_NAME;
+	walk.dir = NTFS_LINO2NINO(dir);
+	walk.result = item;
+	if (ntfs_getdir_byname(&walk))
+		res = iget(dir->i_sb, NTFS_GETU32(item));
+	d_add(d, res);
+	ntfs_free(item);
+	ntfs_free(walk.name);
+	/* Always return success, the dcache will handle negative entries. */
+	return NULL;
+err_ret:
+	ntfs_free(walk.name);
+	return ERR_PTR(err);
+}
+
+static struct file_operations ntfs_file_operations = {
+	llseek:		generic_file_llseek,
+	read:		ntfs_read,
+#ifdef CONFIG_NTFS_RW
+	write:		ntfs_write,
+#endif
+	open:		generic_file_open,
+};
+
+static struct inode_operations ntfs_inode_operations;
+
+#ifdef CONFIG_NTFS_RW
+static int ntfs_create(struct inode* dir, struct dentry *d, int mode)
+{
+	struct inode *r = 0;
+	ntfs_inode *ino = 0;
+	ntfs_volume *vol;
+	int error = 0;
+	ntfs_attribute *si;
+
+	r = new_inode(dir->i_sb);
+	if (!r) {
+		error = -ENOMEM;
+		goto fail;
+	}
+	ntfs_debug(DEBUG_OTHER, "ntfs_create %s\n", d->d_name.name);
+	vol = NTFS_INO2VOL(dir);
+	ino = NTFS_LINO2NINO(r);
+	error = ntfs_alloc_file(NTFS_LINO2NINO(dir), ino, (char*)d->d_name.name,
+				d->d_name.len);
+	if (error) {
+		ntfs_error("ntfs_alloc_file FAILED: error = %i", error);
+		goto fail;
+	}
+	/* Not doing this one was causing a huge amount of corruption! Now the
+	 * bugger bytes the dust! (-8 (AIA) */
+	r->i_ino = ino->i_number;
+	error = ntfs_update_inode(ino);
+	if (error)
+		goto fail;
+	error = ntfs_update_inode(NTFS_LINO2NINO(dir));
+	if (error)
+		goto fail;
+	r->i_uid = vol->uid;
+	r->i_gid = vol->gid;
+	/* FIXME: dirty? dev? */
+	/* Get the file modification times from the standard information. */
+	si = ntfs_find_attr(ino, vol->at_standard_information, NULL);
+	if (si) {
+		char *attr = si->d.data;
+		r->i_atime = ntfs_ntutc2unixutc(NTFS_GETU64(attr + 0x18));
+		r->i_ctime = ntfs_ntutc2unixutc(NTFS_GETU64(attr));
+		r->i_mtime = ntfs_ntutc2unixutc(NTFS_GETU64(attr + 8));
+	}
+	/* It's not a directory */
+	r->i_op = &ntfs_inode_operations;
+	r->i_fop = &ntfs_file_operations;
+	r->i_mode = S_IFREG | S_IRUGO;
+#ifdef CONFIG_NTFS_RW
+	r->i_mode |= S_IWUGO;
+#endif
+	r->i_mode &= ~vol->umask;
+	insert_inode_hash(r);
+	d_instantiate(d, r);
+	return 0;
+ fail:
+	if (r)
+		iput(r);
+	return error;
+}
+
+static int _linux_ntfs_mkdir(struct inode *dir, struct dentry* d, int mode)
+{
+	int error;
+	struct inode *r = 0;
+	ntfs_volume *vol;
+	ntfs_inode *ino;
+	ntfs_attribute *si;
+
+	ntfs_debug (DEBUG_DIR1, "mkdir %s in %x\n", d->d_name.name, dir->i_ino);
+	error = -ENAMETOOLONG;
+	if (d->d_name.len > /* FIXME: */ 255)
+		goto out;
+	error = -EIO;
+	r = new_inode(dir->i_sb);
+	if (!r)
+		goto out;
+	vol = NTFS_INO2VOL(dir);
+	ino = NTFS_LINO2NINO(r);
+	error = ntfs_mkdir(NTFS_LINO2NINO(dir), d->d_name.name, d->d_name.len,
+			   ino);
+	if (error)
+		goto out;
+	/* Not doing this one was causing a huge amount of corruption! Now the
+	 * bugger bytes the dust! (-8 (AIA) */
+	r->i_ino = ino->i_number;
+	r->i_uid = vol->uid;
+	r->i_gid = vol->gid;
+	si = ntfs_find_attr(ino, vol->at_standard_information, NULL);
+	if (si) {
+		char *attr = si->d.data;
+		r->i_atime = ntfs_ntutc2unixutc(NTFS_GETU64(attr + 0x18));
+		r->i_ctime = ntfs_ntutc2unixutc(NTFS_GETU64(attr));
+		r->i_mtime = ntfs_ntutc2unixutc(NTFS_GETU64(attr + 8));
+	}
+	/* It's a directory. */
+	r->i_op = &ntfs_dir_inode_operations;
+	r->i_fop = &ntfs_dir_operations;
+	r->i_mode = S_IFDIR | S_IRUGO | S_IXUGO;
+#ifdef CONFIG_NTFS_RW
+	r->i_mode |= S_IWUGO;
+#endif
+	r->i_mode &= ~vol->umask;	
+	
+	insert_inode_hash(r);
+	d_instantiate(d, r);
+	error = 0;
+ out:
+ 	ntfs_debug (DEBUG_DIR1, "mkdir returns %d\n", error);
+	return error;
+}
+#endif
+
+static struct file_operations ntfs_dir_operations = {
+	read:		generic_read_dir,
+	readdir:	ntfs_readdir,
+};
+
+static struct inode_operations ntfs_dir_inode_operations = {
+	lookup:		ntfs_lookup,
+#ifdef CONFIG_NTFS_RW
+	create:		ntfs_create,
+	mkdir:		_linux_ntfs_mkdir,
+#endif
+};
+
+/* ntfs_read_inode() is called by the Virtual File System (the kernel layer 
+ * that deals with filesystems) when iget is called requesting an inode not
+ * already present in the inode table. Typically filesystems have separate
+ * inode_operations for directories, files and symlinks. */
+static void ntfs_read_inode(struct inode* inode)
+{
+	ntfs_volume *vol;
+	ntfs_inode *ino;
+	ntfs_attribute *data;
+	ntfs_attribute *si;
+
+	vol = NTFS_INO2VOL(inode);
+	inode->i_mode = 0;
+	ntfs_debug(DEBUG_OTHER, "ntfs_read_inode 0x%lx\n", inode->i_ino);
+	switch (inode->i_ino) {
+		/* Those are loaded special files. */
+	case FILE_Mft:
+		if (!vol->mft_ino || ((vol->ino_flags & 1) == 0))
+			goto sys_file_error;
+		ntfs_memcpy(&inode->u.ntfs_i, vol->mft_ino, sizeof(ntfs_inode));
+		ino = vol->mft_ino;
+		vol->mft_ino = &inode->u.ntfs_i;
+		vol->ino_flags &= ~1;
+		ntfs_free(ino);
+		ino = vol->mft_ino;
+		ntfs_debug(DEBUG_OTHER, "Opening $MFT!\n");
+		break;
+	case FILE_MftMirr:
+		if (!vol->mftmirr || ((vol->ino_flags & 2) == 0))
+			goto sys_file_error;
+		ntfs_memcpy(&inode->u.ntfs_i, vol->mftmirr, sizeof(ntfs_inode));
+		ino = vol->mftmirr;
+		vol->mftmirr = &inode->u.ntfs_i;
+		vol->ino_flags &= ~2;
+		ntfs_free(ino);
+		ino = vol->mftmirr;
+		ntfs_debug(DEBUG_OTHER, "Opening $MFTMirr!\n");
+		break;
+	case FILE_BitMap:
+		if (!vol->bitmap || ((vol->ino_flags & 4) == 0))
+			goto sys_file_error;
+		ntfs_memcpy(&inode->u.ntfs_i, vol->bitmap, sizeof(ntfs_inode));
+		ino = vol->bitmap;
+		vol->bitmap = &inode->u.ntfs_i;
+		vol->ino_flags &= ~4;
+		ntfs_free(ino);
+		ino = vol->bitmap;
+		ntfs_debug(DEBUG_OTHER, "Opening $Bitmap!\n");
+		break;
+	case FILE_LogFile ... FILE_AttrDef:
+	/* No need to log root directory accesses. */
+	case FILE_Boot ... FILE_UpCase:
+		ntfs_debug(DEBUG_OTHER, "Opening system file %i!\n",
+				inode->i_ino);
+	default:
+		ino = &inode->u.ntfs_i;
+		if (!ino || ntfs_init_inode(ino, NTFS_INO2VOL(inode),
+								inode->i_ino))
+		{
+			ntfs_debug(DEBUG_OTHER, "NTFS: Error loading inode "
+					"0x%x\n", (unsigned int)inode->i_ino);
+			return;
+		}
+	}
+	/* Set uid/gid from mount options */
+	inode->i_uid = vol->uid;
+	inode->i_gid = vol->gid;
+	inode->i_nlink = 1;
+	/* Use the size of the data attribute as file size */
+	data = ntfs_find_attr(ino, vol->at_data, NULL);
+	if (!data)
+		inode->i_size = 0;
+	else
+		inode->i_size = data->size;
+	/* Get the file modification times from the standard information. */
+	si = ntfs_find_attr(ino, vol->at_standard_information, NULL);
+	if (si) {
+		char *attr = si->d.data;
+		inode->i_atime = ntfs_ntutc2unixutc(NTFS_GETU64(attr + 0x18));
+		inode->i_ctime = ntfs_ntutc2unixutc(NTFS_GETU64(attr));
+		inode->i_mtime = ntfs_ntutc2unixutc(NTFS_GETU64(attr + 8));
+	}
+	/* If it has an index root, it's a directory. */
+	if (ntfs_find_attr(ino, vol->at_index_root, "$I30")) {
+		ntfs_attribute *at;
+		at = ntfs_find_attr(ino, vol->at_index_allocation, "$I30");
+		inode->i_size = at ? at->size : 0;
+		inode->i_op = &ntfs_dir_inode_operations;
+		inode->i_fop = &ntfs_dir_operations;
+		inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO;
+	} else {
+		inode->i_op = &ntfs_inode_operations;
+		inode->i_fop = &ntfs_file_operations;
+		inode->i_mode = S_IFREG | S_IRUGO;
+	}
+#ifdef CONFIG_NTFS_RW
+	if (!data || !(data->flags & (ATTR_IS_COMPRESSED | ATTR_IS_ENCRYPTED)))
+		inode->i_mode |= S_IWUGO;
+#endif
+	inode->i_mode &= ~vol->umask;
+	return;
+sys_file_error:
+	ntfs_error("Critical error. Tried to call ntfs_read_inode() before we "
+		"have completed read_super() or VFS error.\n");
+	// FIXME: Should we panic() at this stage?
+}
+
+#ifdef CONFIG_NTFS_RW
+static void ntfs_write_inode(struct inode *ino, int unused)
+{
+	lock_kernel();
+	ntfs_debug(DEBUG_LINUX, "ntfs_write_inode 0x%x\n", ino->i_ino);
+	ntfs_update_inode(NTFS_LINO2NINO(ino));
+	unlock_kernel();
+}
+#endif
+
+static void _ntfs_clear_inode(struct inode *inode)
+{
+	ntfs_inode *ino;
+	ntfs_volume *vol;
+	
+	lock_kernel();
+	ntfs_debug(DEBUG_OTHER, "_ntfs_clear_inode 0x%x\n", inode->i_ino);
+	vol = NTFS_INO2VOL(inode);
+	if (!vol)
+		ntfs_error("_ntfs_clear_inode: vol = NTFS_INO2VOL(inode) is "
+				"NULL.\n");
+	switch (inode->i_ino) {
+	case FILE_Mft:
+		if (vol->mft_ino && ((vol->ino_flags & 1) == 0)) {
+			ino = (ntfs_inode*)ntfs_malloc(sizeof(ntfs_inode));
+			ntfs_memcpy(ino, &inode->u.ntfs_i, sizeof(ntfs_inode));
+			vol->mft_ino = ino;
+			vol->ino_flags |= 1;
+			goto unl_out;
+		}
+		break;
+	case FILE_MftMirr:
+		if (vol->mftmirr && ((vol->ino_flags & 2) == 0)) {
+			ino = (ntfs_inode*)ntfs_malloc(sizeof(ntfs_inode));
+			ntfs_memcpy(ino, &inode->u.ntfs_i, sizeof(ntfs_inode));
+			vol->mftmirr = ino;
+			vol->ino_flags |= 2;
+			goto unl_out;
+		}
+		break;
+	case FILE_BitMap:
+		if (vol->bitmap && ((vol->ino_flags & 4) == 0)) {
+			ino = (ntfs_inode*)ntfs_malloc(sizeof(ntfs_inode));
+			ntfs_memcpy(ino, &inode->u.ntfs_i, sizeof(ntfs_inode));
+			vol->bitmap = ino;
+			vol->ino_flags |= 4;
+			goto unl_out;
+		}
+		break;
+		/* Nothing. Just clear the inode and exit. */
+	}
+	ntfs_clear_inode(&inode->u.ntfs_i);
+unl_out:
+	unlock_kernel();
+	return;
+}
+
+/* Called when umounting a filesystem by do_umount() in fs/super.c. */
+static void ntfs_put_super(struct super_block *sb)
+{
+	ntfs_volume *vol;
+
+	ntfs_debug(DEBUG_OTHER, "ntfs_put_super\n");
+	vol = NTFS_SB2VOL(sb);
+	ntfs_release_volume(vol);
+	if (vol->nls_map)
+		unload_nls(vol->nls_map);
+	ntfs_debug(DEBUG_OTHER, "ntfs_put_super: done\n");
+}
+
+/* Called by the kernel when asking for stats. */
+static int ntfs_statfs(struct super_block *sb, struct statfs *sf)
+{
+	struct inode *mft;
+	ntfs_volume *vol;
+	__s64 size;
+	int error;
+
+	ntfs_debug(DEBUG_OTHER, "ntfs_statfs\n");
+	vol = NTFS_SB2VOL(sb);
+	sf->f_type = NTFS_SUPER_MAGIC;
+	sf->f_bsize = vol->cluster_size;
+	error = ntfs_get_volumesize(NTFS_SB2VOL(sb), &size);
+	if (error)
+		return error;
+	sf->f_blocks = size;	/* Volumesize is in clusters. */
+	size = (__s64)ntfs_get_free_cluster_count(vol->bitmap);
+	/* Just say zero if the call failed. */
+	if (size < 0LL)
+		size = 0;
+	sf->f_bfree = sf->f_bavail = size;
+	ntfs_debug(DEBUG_OTHER, "ntfs_statfs: calling mft = iget(sb, "
+			"FILE_Mft)\n");
+	mft = iget(sb, FILE_Mft);
+	ntfs_debug(DEBUG_OTHER, "ntfs_statfs: iget(sb, FILE_Mft) returned "
+			"0x%x\n", mft);
+	if (!mft)
+		return -EIO;
+	sf->f_files = mft->i_size >> vol->mft_record_size_bits;
+	ntfs_debug(DEBUG_OTHER, "ntfs_statfs: calling iput(mft)\n");
+	iput(mft);
+	/* Should be read from volume. */
+	sf->f_namelen = 255;
+	return 0;
+}
+
+/* Called when remounting a filesystem by do_remount_sb() in fs/super.c. */
+static int ntfs_remount_fs(struct super_block *sb, int *flags, char *options)
+{
+	if (!parse_options(NTFS_SB2VOL(sb), options))
+		return -EINVAL;
+	return 0;
+}
+
+/* Define the super block operation that are implemented */
+static struct super_operations ntfs_super_operations = {
+	read_inode:	ntfs_read_inode,
+#ifdef CONFIG_NTFS_RW
+	write_inode:	ntfs_write_inode,
+#endif
+	put_super:	ntfs_put_super,
+	statfs:		ntfs_statfs,
+	remount_fs:	ntfs_remount_fs,
+	clear_inode:	_ntfs_clear_inode,
+};
+
+/**
+ * is_boot_sector_ntfs - check an NTFS boot sector for validity
+ * @b:		buffer containing bootsector to check
+ * 
+ * Check whether @b contains a valid NTFS boot sector.
+ * Return 1 if @b is a valid NTFS bootsector or 0 if not.
+ */
+static int is_boot_sector_ntfs(ntfs_u8 *b)
+{
+	ntfs_u32 i;
+
+	/* FIXME: We don't use checksumming yet as NT4(SP6a) doesn't either...
+	 * But we might as well have the code ready to do it. (AIA) */
+#if 0
+	/* Calculate the checksum. */
+	if (b < b + 0x50) {
+		ntfs_u32 *u;
+		ntfs_u32 *bi = (ntfs_u32 *)(b + 0x50);
+		
+		for (u = bi, i = 0; u < bi; ++u)
+			i += NTFS_GETU32(*u);
+	}
+#endif
+	/* Check magic is "NTFS    " */
+	if (b[3] != 0x4e) goto not_ntfs;
+	if (b[4] != 0x54) goto not_ntfs;
+	if (b[5] != 0x46) goto not_ntfs;
+	if (b[6] != 0x53) goto not_ntfs;
+	for (i = 7; i < 0xb; ++i)
+		if (b[i] != 0x20) goto not_ntfs;
+	/* Check bytes per sector value is between 512 and 4096. */
+	if (b[0xb] != 0) goto not_ntfs;
+	if (b[0xc] > 0x10) goto not_ntfs;
+	/* Check sectors per cluster value is valid. */
+	switch (b[0xd]) {
+	case 1: case 2: case 4: case 8: case 16:
+	case 32: case 64: case 128:
+		break;
+	default:
+		goto not_ntfs;
+	}
+	/* Check reserved sectors value and four other fields are zero. */
+	for (i = 0xe; i < 0x15; ++i) 
+		if (b[i] != 0) goto not_ntfs;
+	if (b[0x16] != 0) goto not_ntfs;
+	if (b[0x17] != 0) goto not_ntfs;
+	for (i = 0x20; i < 0x24; ++i)
+		if (b[i] != 0) goto not_ntfs;
+	/* Check clusters per file record segment value is valid. */
+	if (b[0x40] < 0xe1 || b[0x40] > 0xf7) {
+		switch (b[0x40]) {
+		case 1: case 2: case 4: case 8: case 16: case 32: case 64:
+			break;
+		default:
+			goto not_ntfs;
+		}
+	}
+	/* Check clusters per index block value is valid. */
+	if (b[0x44] < 0xe1 || b[0x44] > 0xf7) {
+		switch (b[0x44]) {
+		case 1: case 2: case 4: case 8: case 16: case 32: case 64:
+			break;
+		default:
+			goto not_ntfs;
+		}
+	}
+	return 1;
+not_ntfs:
+	return 0;
+}
+
+/* Called to mount a filesystem by read_super() in fs/super.c.
+ * Return a super block, the main structure of a filesystem.
+ *
+ * NOTE : Don't store a pointer to an option, as the page containing the
+ * options is freed after ntfs_read_super() returns.
+ *
+ * NOTE : A context switch can happen in kernel code only if the code blocks
+ * (= calls schedule() in kernel/sched.c). */
+struct super_block *ntfs_read_super(struct super_block *sb, void *options,
+		int silent)
+{
+	ntfs_volume *vol;
+	struct buffer_head *bh;
+	int i, to_read, blocksize;
+
+	ntfs_debug(DEBUG_OTHER, "ntfs_read_super\n");
+	vol = NTFS_SB2VOL(sb);
+	init_ntfs_super_block(vol);
+	if (!parse_options(vol, (char*)options))
+		goto ntfs_read_super_vol;
+	blocksize = get_hardsect_size(sb->s_dev);
+	if (blocksize < 512)
+		blocksize = 512;
+	if (set_blocksize(sb->s_dev, blocksize) < 0) {
+		ntfs_error("Unable to set blocksize %d.\n", blocksize);
+		goto ntfs_read_super_vol;
+	}
+	sb->s_blocksize = blocksize;
+	/* Read the super block (boot block). */
+	if (!(bh = sb_bread(sb, 0))) {
+		ntfs_error("Reading super block failed\n");
+		goto ntfs_read_super_unl;
+	}
+	ntfs_debug(DEBUG_OTHER, "Done reading boot block\n");
+	/* Check for valid 'NTFS' boot sector. */
+	if (!is_boot_sector_ntfs(bh->b_data)) {
+		ntfs_debug(DEBUG_OTHER, "Not a NTFS volume\n");
+		bforget(bh);
+		goto ntfs_read_super_unl;
+	}
+	ntfs_debug(DEBUG_OTHER, "Going to init volume\n");
+	if (ntfs_init_volume(vol, bh->b_data) < 0) {
+		ntfs_debug(DEBUG_OTHER, "Init volume failed.\n");
+		bforget(bh);
+		goto ntfs_read_super_unl;
+	}
+	ntfs_debug(DEBUG_OTHER, "$Mft at cluster 0x%lx\n", vol->mft_lcn);
+	brelse(bh);
+	vol->sb = sb;
+	if (vol->cluster_size > PAGE_SIZE) {
+		ntfs_error("Partition cluster size is not supported yet (it "
+			   "is > max kernel blocksize).\n");
+		goto ntfs_read_super_unl;
+	}
+	ntfs_debug(DEBUG_OTHER, "Done to init volume\n");
+	/* Inform the kernel that a device block is a NTFS cluster. */
+	sb->s_blocksize = vol->cluster_size;
+	sb->s_blocksize_bits = vol->cluster_size_bits;
+	if (blocksize != vol->cluster_size &&
+			set_blocksize(sb->s_dev, sb->s_blocksize) < 0) {
+		ntfs_error("Cluster size too small for device.\n");
+		goto ntfs_read_super_unl;
+	}
+	ntfs_debug(DEBUG_OTHER, "set_blocksize\n");
+	/* Allocate an MFT record (MFT record can be smaller than a cluster). */
+	i = vol->cluster_size;
+	if (i < vol->mft_record_size)
+		i = vol->mft_record_size;
+	if (!(vol->mft = ntfs_malloc(i)))
+		goto ntfs_read_super_unl;
+
+	/* Read at least the MFT record for $Mft. */
+	to_read = vol->mft_clusters_per_record;
+	if (to_read < 1)
+		to_read = 1;
+	for (i = 0; i < to_read; i++) {
+		if (!(bh = sb_bread(sb, vol->mft_lcn + i))) {
+			ntfs_error("Could not read $Mft record 0\n");
+			goto ntfs_read_super_mft;
+		}
+		ntfs_memcpy(vol->mft + ((__s64)i << vol->cluster_size_bits),
+						bh->b_data, vol->cluster_size);
+		brelse(bh);
+		ntfs_debug(DEBUG_OTHER, "Read cluster 0x%x\n",
+							 vol->mft_lcn + i);
+	}
+	/* Check and fixup this MFT record */
+	if (!ntfs_check_mft_record(vol, vol->mft)){
+		ntfs_error("Invalid $Mft record 0\n");
+		goto ntfs_read_super_mft;
+	}
+	/* Inform the kernel about which super operations are available. */
+	sb->s_op = &ntfs_super_operations;
+	sb->s_magic = NTFS_SUPER_MAGIC;
+	sb->s_maxbytes = MAX_LFS_FILESIZE;
+	ntfs_debug(DEBUG_OTHER, "Reading special files\n");
+	if (ntfs_load_special_files(vol)) {
+		ntfs_error("Error loading special files\n");
+		goto ntfs_read_super_mft;
+	}
+	ntfs_debug(DEBUG_OTHER, "Getting RootDir\n");
+	/* Get the root directory. */
+	if (!(sb->s_root = d_alloc_root(iget(sb, FILE_root)))) {
+		ntfs_error("Could not get root dir inode\n");
+		goto ntfs_read_super_mft;
+	}
+ntfs_read_super_ret:
+	ntfs_debug(DEBUG_OTHER, "read_super: done\n");
+	return sb;
+ntfs_read_super_mft:
+	ntfs_free(vol->mft);
+ntfs_read_super_unl:
+ntfs_read_super_vol:
+	sb = NULL;
+	goto ntfs_read_super_ret;
+}
+
+/* Define the filesystem */
+static DECLARE_FSTYPE_DEV(ntfs_fs_type, "ntfs", ntfs_read_super);
+
+static int __init init_ntfs_fs(void)
+{
+	/* Comment this if you trust klogd. There are reasons not to trust it */
+#if defined(DEBUG) && !defined(MODULE)
+	console_verbose();
+#endif
+	printk(KERN_NOTICE "NTFS driver v" NTFS_VERSION " [Flags: R/"
+#ifdef CONFIG_NTFS_RW
+			"W"
+#else
+			"O"
+#endif
+#ifdef DEBUG
+			" DEBUG"
+#endif
+#ifdef MODULE
+			" MODULE"
+#endif
+			"]\n");
+	SYSCTL(1);
+	ntfs_debug(DEBUG_OTHER, "registering %s\n", ntfs_fs_type.name);
+	/* Add this filesystem to the kernel table of filesystems. */
+	return register_filesystem(&ntfs_fs_type);
+}
+
+static void __exit exit_ntfs_fs(void)
+{
+	SYSCTL(0);
+	ntfs_debug(DEBUG_OTHER, "unregistering %s\n", ntfs_fs_type.name);
+	unregister_filesystem(&ntfs_fs_type);
+}
+
+EXPORT_NO_SYMBOLS;
+/*
+ * Not strictly true. The driver was written originally by Martin von Löwis.
+ * I am just maintaining and rewriting it.
+ */
+MODULE_AUTHOR("Anton Altaparmakov <aia21@cus.cam.ac.uk>");
+MODULE_DESCRIPTION("Linux NTFS driver");
+MODULE_LICENSE("GPL");
+#ifdef DEBUG
+MODULE_PARM(ntdebug, "i");
+MODULE_PARM_DESC(ntdebug, "Debug level");
+#endif
+
+module_init(init_ntfs_fs)
+module_exit(exit_ntfs_fs)
+
diff --git a/fs/ntfs/inode.c b/fs/ntfs/inode.c
new file mode 100644
index 00000000000000..55d8a817a43882
--- /dev/null
+++ b/fs/ntfs/inode.c
@@ -0,0 +1,2322 @@
+/*
+ * inode.c
+ *
+ * Copyright (C) 1995-1999 Martin von Löwis
+ * Copyright (C) 1996 Albert D. Cahalan
+ * Copyright (C) 1996-1997 Régis Duchesne
+ * Copyright (C) 1998 Joseph Malicki
+ * Copyright (C) 1999 Steve Dodd
+ * Copyright (C) 2000-2001 Anton Altaparmakov (AIA)
+ */
+#include "ntfstypes.h"
+#include "ntfsendian.h"
+#include "struct.h"
+#include "inode.h"
+#include <linux/errno.h>
+#include "macros.h"
+#include "attr.h"
+#include "super.h"
+#include "dir.h"
+#include "support.h"
+#include "util.h"
+#include <linux/ntfs_fs.h>
+#include <linux/smp_lock.h>
+
+typedef struct {
+	int recno;
+	unsigned char *record;
+} ntfs_mft_record;
+
+typedef struct {
+	int size;
+	int count;
+	ntfs_mft_record *records;
+} ntfs_disk_inode;
+
+static void ntfs_fill_mft_header(ntfs_u8 *mft, int rec_size, int seq_no,
+		int links, int flags)
+{
+	int fixup_ofs = 0x2a;
+	int fixup_cnt = rec_size / NTFS_SECTOR_SIZE + 1;
+	int attr_ofs = (fixup_ofs + 2 * fixup_cnt + 7) & ~7;
+
+	NTFS_PUTU32(mft + 0x00, 0x454c4946);	/* FILE */
+	NTFS_PUTU16(mft + 0x04, fixup_ofs);	/* Offset to fixup. */
+	NTFS_PUTU16(mft + 0x06, fixup_cnt);	/* Number of fixups. */
+	NTFS_PUTU64(mft + 0x08, 0);		/* Logical sequence number. */
+	NTFS_PUTU16(mft + 0x10, seq_no);	/* Sequence number. */
+	NTFS_PUTU16(mft + 0x12, links);		/* Hard link count. */
+	NTFS_PUTU16(mft + 0x14, attr_ofs);	/* Offset to attributes. */
+	NTFS_PUTU16(mft + 0x16, flags);		/* Flags: 1 = In use,
+							  2 = Directory. */
+	NTFS_PUTU32(mft + 0x18, attr_ofs + 8);	/* Bytes in use. */
+	NTFS_PUTU32(mft + 0x1c, rec_size);	/* Total allocated size. */
+	NTFS_PUTU64(mft + 0x20, 0);		/* Base mft record. */
+	NTFS_PUTU16(mft + 0x28, 0);		/* Next attr instance. */
+	NTFS_PUTU16(mft + fixup_ofs, 1);	/* Fixup word. */
+	NTFS_PUTU32(mft + attr_ofs, (__u32)-1);	/* End of attributes marker. */
+}
+
+/*
+ * Search in an inode an attribute by type and name. 
+ * FIXME: Check that when attributes are inserted all attribute list
+ * attributes are expanded otherwise need to modify this function to deal
+ * with attribute lists. (AIA)
+ */
+ntfs_attribute *ntfs_find_attr(ntfs_inode *ino, int type, char *name)
+{
+	int i;
+	
+	if (!ino) {
+		ntfs_error("ntfs_find_attr: NO INODE!\n");
+		return 0;
+	}
+	for (i = 0; i < ino->attr_count; i++) {
+		if (type < ino->attrs[i].type)
+			return 0;
+		if (type == ino->attrs[i].type) {
+			if (!name) {
+				if (!ino->attrs[i].name)
+					return ino->attrs + i;
+			} else if (ino->attrs[i].name &&
+				   !ntfs_ua_strncmp(ino->attrs[i].name, name,
+						    strlen(name)))
+				return ino->attrs + i;
+		}
+	}
+	return 0;
+}
+
+/*
+ * Insert all attributes from the record mftno of the MFT in the inode ino.
+ * If mftno is a base mft record we abort as soon as we find the attribute
+ * list, but only on the first pass. We will get called later when the attribute
+ * list attribute is being parsed so we need to distinguish the two cases.
+ * FIXME: We should be performing structural consistency checks. (AIA)
+ * Return 0 on success or -errno on error.
+ */
+static int ntfs_insert_mft_attributes(ntfs_inode* ino, char *mft, int mftno)
+{
+	int i, error, type, len, present = 0;
+	char *it;
+
+	/* Check for duplicate extension record. */
+	for(i = 0; i < ino->record_count; i++)
+		if (ino->records[i] == mftno) {
+			if (i)
+				return 0;
+			present = 1;
+			break;
+		}
+	if (!present) {
+		/* (re-)allocate space if necessary. */
+		if (ino->record_count % 8 == 0)	{
+			int *new;
+
+			new = ntfs_malloc((ino->record_count + 8) *
+								sizeof(int));
+			if (!new)
+				return -ENOMEM;
+			if (ino->records) {
+				for (i = 0; i < ino->record_count; i++)
+					new[i] = ino->records[i];
+				ntfs_free(ino->records);
+			}
+			ino->records = new;
+		}
+		ino->records[ino->record_count] = mftno;
+		ino->record_count++;
+	}
+	it = mft + NTFS_GETU16(mft + 0x14); /* mft->attrs_offset */
+	do {
+		type = NTFS_GETU32(it);
+		len = NTFS_GETU32(it + 4);
+		if (type != -1) {
+			error = ntfs_insert_attribute(ino, it);
+			if (error)
+				return error;
+		}
+		/* If we have just processed the attribute list and this is
+		 * the first time we are parsing this (base) mft record then we
+		 * are done so that the attribute list gets parsed before the
+		 * entries in the base mft record. Otherwise we run into
+		 * problems with encountering attributes out of order and when
+		 * this happens with different attribute extents we die. )-:
+		 * This way we are ok as the attribute list is always sorted
+		 * fully and correctly. (-: */
+		if (type == 0x20 && !present)
+			return 0;
+		it += len;
+	} while (type != -1); /* Attribute listing ends with type -1. */
+	return 0;
+}
+
+/*
+ * Insert a single specific attribute from the record mftno of the MFT in the
+ * inode ino. We disregard the attribute list assuming we have already parsed
+ * it.
+ * FIXME: We should be performing structural consistency checks. (AIA)
+ * Return 0 on success or -errno on error.
+ */
+static int ntfs_insert_mft_attribute(ntfs_inode* ino, int mftno,
+		ntfs_u8 *attr)
+{
+	int i, error, present = 0;
+
+	/* Check for duplicate extension record. */
+	for(i = 0; i < ino->record_count; i++)
+		if (ino->records[i] == mftno) {
+			present = 1;
+			break;
+		}
+	if (!present) {
+		/* (re-)allocate space if necessary. */
+		if (ino->record_count % 8 == 0)	{
+			int *new;
+
+			new = ntfs_malloc((ino->record_count + 8) *
+								sizeof(int));
+			if (!new)
+				return -ENOMEM;
+			if (ino->records) {
+				for (i = 0; i < ino->record_count; i++)
+					new[i] = ino->records[i];
+				ntfs_free(ino->records);
+			}
+			ino->records = new;
+		}
+		ino->records[ino->record_count] = mftno;
+		ino->record_count++;
+	}
+	if (NTFS_GETU32(attr) == -1) {
+		ntfs_debug(DEBUG_FILE3, "ntfs_insert_mft_attribute: attribute "
+				"type is -1.\n");
+		return 0;
+	}
+	error = ntfs_insert_attribute(ino, attr);
+	if (error)
+		return error;
+	return 0;
+}
+
+/* Read and insert all the attributes of an 'attribute list' attribute.
+ * Return the number of remaining bytes in *plen. */
+static int parse_attributes(ntfs_inode *ino, ntfs_u8 *alist, int *plen)
+{
+	ntfs_u8 *mft, *attr;
+	int mftno, l, error;
+	int last_mft = -1;
+	int len = *plen;
+	int tries = 0;
+	
+	if (!ino->attr) {
+		ntfs_error("parse_attributes: called on inode 0x%x without a "
+				"loaded base mft record.\n", ino->i_number);
+		return -EINVAL;
+	}
+	mft = ntfs_malloc(ino->vol->mft_record_size);
+	if (!mft)
+		return -ENOMEM;
+	while (len > 8)	{
+		l = NTFS_GETU16(alist + 4);
+		if (l > len)
+			break;
+	        /* Process an attribute description. */
+		mftno = NTFS_GETU32(alist + 0x10); 
+			/* FIXME: The mft reference (alist + 0x10) is __s64.
+			* - Not a problem unless we encounter a huge partition.
+			* - Should be consistency checking the sequence numbers
+			*   though! This should maybe happen in 
+			*   ntfs_read_mft_record() itself and a hotfix could
+			*   then occur there or the user notified to run
+			*   ntfsck. (AIA) */
+		if (mftno != ino->i_number && mftno != last_mft) {
+continue_after_loading_mft_data:
+			last_mft = mftno;
+			error = ntfs_read_mft_record(ino->vol, mftno, mft);
+			if (error) {
+				if (error == -EINVAL && !tries)
+					goto force_load_mft_data;
+failed_reading_mft_data:
+				ntfs_debug(DEBUG_FILE3, "parse_attributes: "
+					"ntfs_read_mft_record(mftno = 0x%x) "
+					"failed\n", mftno);
+				ntfs_free(mft);
+				return error;
+			}
+		}
+		attr = ntfs_find_attr_in_mft_rec(
+				ino->vol,		/* ntfs volume */
+				mftno == ino->i_number ?/* mft record is: */
+					ino->attr:	/*   base record */
+					mft,		/*   extension record */
+				NTFS_GETU32(alist + 0),	/* type */
+				(wchar_t*)(alist + alist[7]),	/* name */
+				alist[6], 		/* name length */
+				1,			/* ignore case */
+				NTFS_GETU16(alist + 24)	/* instance number */
+				);
+		if (!attr) {
+			ntfs_error("parse_attributes: mft records 0x%x and/or "
+				       "0x%x corrupt!\n", ino->i_number, mftno);
+			ntfs_free(mft);
+			return -EINVAL; /* FIXME: Better error code? (AIA) */
+		}
+		error = ntfs_insert_mft_attribute(ino, mftno, attr);
+		if (error) {
+			ntfs_debug(DEBUG_FILE3, "parse_attributes: "
+				"ntfs_insert_mft_attribute(mftno 0x%x, "
+				"attribute type 0x%x) failed\n", mftno,
+				NTFS_GETU32(alist + 0));
+			ntfs_free(mft);
+			return error;
+		}
+		len -= l;
+		alist += l;
+	}
+	ntfs_free(mft);
+	*plen = len;
+	return 0;
+force_load_mft_data:
+{
+	ntfs_u8 *mft2, *attr2;
+	int mftno2;
+	int last_mft2 = last_mft;
+	int len2 = len;
+	int error2;
+	int found2 = 0;
+	ntfs_u8 *alist2 = alist;
+	/*
+	 * We only get here if $DATA wasn't found in $MFT which only happens
+	 * on volume mount when $MFT has an attribute list and there are
+	 * attributes before $DATA which are inside extent mft records. So
+	 * we just skip forward to the $DATA attribute and read that. Then we
+	 * restart which is safe as an attribute will not be inserted twice.
+	 *
+	 * This still will not fix the case where the attribute list is non-
+	 * resident, larger than 1024 bytes, and the $DATA attribute list entry
+	 * is not in the first 1024 bytes. FIXME: This should be implemented
+	 * somehow! Perhaps by passing special error code up to
+	 * ntfs_load_attributes() so it keeps going trying to get to $DATA
+	 * regardless. Then it would have to restart just like we do here.
+	 */
+	mft2 = ntfs_malloc(ino->vol->mft_record_size);
+	if (!mft2) {
+		ntfs_free(mft);
+		return -ENOMEM;
+	}
+	ntfs_memcpy(mft2, mft, ino->vol->mft_record_size);
+	while (len2 > 8) {
+		l = NTFS_GETU16(alist2 + 4);
+		if (l > len2)
+			break;
+		if (NTFS_GETU32(alist2 + 0x0) < ino->vol->at_data) {
+			len2 -= l;
+			alist2 += l;
+			continue;
+		}
+		if (NTFS_GETU32(alist2 + 0x0) > ino->vol->at_data) {
+			if (found2)
+				break;
+			/* Uh-oh! It really isn't there! */
+			ntfs_error("Either the $MFT is corrupt or, equally "
+					"likely, the $MFT is too complex for "
+					"the current driver to handle. Please "
+					"email the ntfs maintainer that you "
+					"saw this message. Thank you.\n");
+			goto failed_reading_mft_data;
+		}
+	        /* Process attribute description. */
+		mftno2 = NTFS_GETU32(alist2 + 0x10); 
+		if (mftno2 != ino->i_number && mftno2 != last_mft2) {
+			last_mft2 = mftno2;
+			error2 = ntfs_read_mft_record(ino->vol, mftno2, mft2);
+			if (error2) {
+				ntfs_debug(DEBUG_FILE3, "parse_attributes: "
+					"ntfs_read_mft_record(mftno2 = 0x%x) "
+					"failed\n", mftno2);
+				ntfs_free(mft2);
+				goto failed_reading_mft_data;
+			}
+		}
+		attr2 = ntfs_find_attr_in_mft_rec(
+				ino->vol,		 /* ntfs volume */
+				mftno2 == ino->i_number ?/* mft record is: */
+					ino->attr:	 /*  base record */
+					mft2,		 /*  extension record */
+				NTFS_GETU32(alist2 + 0),	/* type */
+				(wchar_t*)(alist2 + alist2[7]),	/* name */
+				alist2[6], 		 /* name length */
+				1,			 /* ignore case */
+				NTFS_GETU16(alist2 + 24) /* instance number */
+				);
+		if (!attr2) {
+			ntfs_error("parse_attributes: mft records 0x%x and/or "
+				       "0x%x corrupt!\n", ino->i_number,
+				       mftno2);
+			ntfs_free(mft2);
+			goto failed_reading_mft_data;
+		}
+		error2 = ntfs_insert_mft_attribute(ino, mftno2, attr2);
+		if (error2) {
+			ntfs_debug(DEBUG_FILE3, "parse_attributes: "
+				"ntfs_insert_mft_attribute(mftno2 0x%x, "
+				"attribute2 type 0x%x) failed\n", mftno2,
+				NTFS_GETU32(alist2 + 0));
+			ntfs_free(mft2);
+			goto failed_reading_mft_data;
+		}
+		len2 -= l;
+		alist2 += l;
+		found2 = 1;
+	}
+	ntfs_free(mft2);
+	tries = 1;
+	goto continue_after_loading_mft_data;
+}
+}
+
+static void ntfs_load_attributes(ntfs_inode *ino)
+{
+	ntfs_attribute *alist;
+	int datasize;
+	int offset, len, delta;
+	char *buf;
+	ntfs_volume *vol = ino->vol;
+	
+	ntfs_debug(DEBUG_FILE2, "load_attributes 0x%x 1\n", ino->i_number);
+	if (ntfs_insert_mft_attributes(ino, ino->attr, ino->i_number))
+		return;
+	ntfs_debug(DEBUG_FILE2, "load_attributes 0x%x 2\n", ino->i_number);
+	alist = ntfs_find_attr(ino, vol->at_attribute_list, 0);
+	ntfs_debug(DEBUG_FILE2, "load_attributes 0x%x 3\n", ino->i_number);
+	if (!alist)
+		return;
+	ntfs_debug(DEBUG_FILE2, "load_attributes 0x%x 4\n", ino->i_number);
+	datasize = alist->size;
+	ntfs_debug(DEBUG_FILE2, "load_attributes 0x%x: alist->size = 0x%x\n",
+			ino->i_number, alist->size);
+	if (alist->resident) {
+		parse_attributes(ino, alist->d.data, &datasize);
+		return;
+	}
+	ntfs_debug(DEBUG_FILE2, "load_attributes 0x%x 5\n", ino->i_number);
+	buf = ntfs_malloc(1024);
+	if (!buf)    /* FIXME: Should be passing error code to caller. (AIA) */
+		return;
+	delta = 0;
+	for (offset = 0; datasize; datasize -= len, offset += len) {
+		ntfs_io io;
+		
+		io.fn_put = ntfs_put;
+		io.fn_get = 0;
+		io.param = buf + delta;
+		len = 1024 - delta;
+		if (len > datasize)
+			len = datasize;
+		ntfs_debug(DEBUG_FILE2, "load_attributes 0x%x: len = %i\n",
+						ino->i_number, len);
+		ntfs_debug(DEBUG_FILE2, "load_attributes 0x%x: delta = %i\n",
+						ino->i_number, delta);
+		io.size = len;
+		if (ntfs_read_attr(ino, vol->at_attribute_list, 0, offset,
+				   &io))
+			ntfs_error("error in load_attributes\n");
+		delta += len;
+		ntfs_debug(DEBUG_FILE2, "load_attributes 0x%x: after += len, "
+				"delta = %i\n", ino->i_number, delta);
+		parse_attributes(ino, buf, &delta);
+		ntfs_debug(DEBUG_FILE2, "load_attributes 0x%x: after "
+				"parse_attr, delta = %i\n", ino->i_number,
+				delta);
+		if (delta)
+			/* Move remaining bytes to buffer start. */
+			ntfs_memmove(buf, buf + len - delta, delta);
+	}
+	ntfs_debug(DEBUG_FILE2, "load_attributes 0x%x 6\n", ino->i_number);
+	ntfs_free(buf);
+}
+	
+int ntfs_init_inode(ntfs_inode *ino, ntfs_volume *vol, int inum)
+{
+	char *buf;
+	int error;
+
+	ntfs_debug(DEBUG_FILE1, "Initializing inode 0x%x\n", inum);
+	ino->i_number = inum;
+	ino->vol = vol;
+	ino->attr = buf = ntfs_malloc(vol->mft_record_size);
+	if (!buf)
+		return -ENOMEM;
+	error = ntfs_read_mft_record(vol, inum, ino->attr);
+	if (error) {
+		ntfs_debug(DEBUG_OTHER, "Init inode: 0x%x failed\n", inum);
+		return error;
+	}
+	ntfs_debug(DEBUG_FILE2, "Init inode: got mft 0x%x\n", inum);
+	ino->sequence_number = NTFS_GETU16(buf + 0x10);
+	ino->attr_count = 0;
+	ino->record_count = 0;
+	ino->records = 0;
+	ino->attrs = 0;
+	ntfs_load_attributes(ino);
+	ntfs_debug(DEBUG_FILE2, "Init inode: done 0x%x\n", inum);
+	return 0;
+}
+
+void ntfs_clear_inode(ntfs_inode *ino)
+{
+	int i;
+	if (!ino->attr) {
+		ntfs_error("ntfs_clear_inode: double free\n");
+		return;
+	}
+	ntfs_free(ino->attr);
+	ino->attr = 0;
+	ntfs_free(ino->records);
+	ino->records = 0;
+	for (i = 0; i < ino->attr_count; i++) {
+		if (ino->attrs[i].name)
+			ntfs_free(ino->attrs[i].name);
+		if (ino->attrs[i].resident) {
+			if (ino->attrs[i].d.data)
+				ntfs_free(ino->attrs[i].d.data);
+		} else {
+			if (ino->attrs[i].d.r.runlist)
+				ntfs_vfree(ino->attrs[i].d.r.runlist);
+		}
+	}
+	ntfs_free(ino->attrs);
+	ino->attrs = 0;
+}
+
+/* Check and fixup a MFT record. */
+int ntfs_check_mft_record(ntfs_volume *vol, char *record)
+{
+	return ntfs_fixup_record(record, "FILE", vol->mft_record_size);
+}
+
+/* Return (in result) the value indicating the next available attribute 
+ * chunk number. Works for inodes w/o extension records only. */
+int ntfs_allocate_attr_number(ntfs_inode *ino, int *result)
+{
+	if (ino->record_count != 1)
+		return -EOPNOTSUPP;
+	*result = NTFS_GETU16(ino->attr + 0x28);
+	NTFS_PUTU16(ino->attr + 0x28, (*result) + 1);
+	return 0;
+}
+
+/* Find the location of an attribute in the inode. A name of NULL indicates
+ * unnamed attributes. Return pointer to attribute or NULL if not found. */
+char *ntfs_get_attr(ntfs_inode *ino, int attr, char *name)
+{
+	/* Location of first attribute. */
+	char *it = ino->attr + NTFS_GETU16(ino->attr + 0x14);
+	int type;
+	int len;
+	
+	/* Only check for magic DWORD here, fixup should have happened before.*/
+	if (!IS_MFT_RECORD(ino->attr))
+		return 0;
+	do {
+		type = NTFS_GETU32(it);
+		len = NTFS_GETU16(it + 4);
+		/* We found the attribute type. Is the name correct, too? */
+		if (type == attr) {
+			int namelen = NTFS_GETU8(it + 9);
+			char *name_it, *n = name;
+			/* Match given name and attribute name if present.
+			   Make sure attribute name is Unicode. */
+			if (!name) {
+				goto check_namelen;
+			} else if (namelen) {
+				for (name_it = it + NTFS_GETU16(it + 10);
+				     namelen; n++, name_it += 2, namelen--)
+					if (*name_it != *n || name_it[1])
+						break;
+check_namelen:
+				if (!namelen)
+					break;
+			}
+		}
+		it += len;
+	} while (type != -1); /* List of attributes ends with type -1. */
+	if (type == -1)
+		return 0;
+	return it;
+}
+
+__s64 ntfs_get_attr_size(ntfs_inode *ino, int type, char *name)
+{
+	ntfs_attribute *attr = ntfs_find_attr(ino, type, name);
+	if (!attr)
+		return 0;
+	return
+		attr->size;
+}
+	
+int ntfs_attr_is_resident(ntfs_inode *ino, int type, char *name)
+{
+	ntfs_attribute *attr = ntfs_find_attr(ino, type, name);
+	if (!attr)
+		return 0;
+	return attr->resident;
+}
+	
+/*
+ * A run is coded as a type indicator, an unsigned length, and a signed cluster
+ * offset.
+ * . To save space, length and offset are fields of variable length. The low
+ *   nibble of the type indicates the width of the length :), the high nibble
+ *   the width of the offset.
+ * . The first offset is relative to cluster 0, later offsets are relative to
+ *   the previous cluster.
+ *
+ * This function decodes a run. Length is an output parameter, data and cluster
+ * are in/out parameters.
+ */
+int ntfs_decompress_run(unsigned char **data, int *length, 
+			ntfs_cluster_t *cluster, int *ctype)
+{
+	unsigned char type = *(*data)++;
+	*ctype = 0;
+	switch (type & 0xF) {
+	case 1: 
+		*length = NTFS_GETS8(*data);
+		break;
+	case 2: 
+		*length = NTFS_GETS16(*data);
+		break;
+	case 3: 
+		*length = NTFS_GETS24(*data);
+		break;
+        case 4: 
+		*length = NTFS_GETS32(*data);
+		break;
+        	/* Note: cases 5-8 are probably pointless to code, since how
+		 * many runs > 4GB of length are there? At the most, cases 5
+		 * and 6 are probably necessary, and would also require making
+		 * length 64-bit throughout. */
+	default:
+		ntfs_error("Can't decode run type field 0x%x\n", type);
+		return -1;
+	}
+//	ntfs_debug(DEBUG_FILE3, "ntfs_decompress_run: length = 0x%x\n",*length);
+	if (*length < 0)
+	{
+		ntfs_error("Negative run length decoded\n");
+		return -1;
+	}
+	*data += (type & 0xF);
+	switch (type & 0xF0) {
+	case 0:
+		*ctype = 2;
+		break;
+	case 0x10:
+		*cluster += NTFS_GETS8(*data);
+		break;
+	case 0x20:
+		*cluster += NTFS_GETS16(*data);
+		break;
+	case 0x30:
+		*cluster += NTFS_GETS24(*data);
+		break;
+	case 0x40:
+		*cluster += NTFS_GETS32(*data);
+		break;
+#if 0 /* Keep for future, in case ntfs_cluster_t ever becomes 64bit. */
+	case 0x50: 
+		*cluster += NTFS_GETS40(*data);
+		break;
+	case 0x60: 
+		*cluster += NTFS_GETS48(*data);
+		break;
+	case 0x70: 
+		*cluster += NTFS_GETS56(*data);
+		break;
+	case 0x80: 
+		*cluster += NTFS_GETS64(*data);
+		break;
+#endif
+	default:
+		ntfs_error("Can't decode run type field 0x%x\n", type);
+		return -1;
+	}
+//	ntfs_debug(DEBUG_FILE3, "ntfs_decompress_run: cluster = 0x%x\n",
+//								*cluster);
+	*data += (type >> 4);
+	return 0;
+}
+
+static void dump_runlist(const ntfs_runlist *rl, const int rlen);
+
+/*
+ * FIXME: ntfs_readwrite_attr() has the effect of writing @dest to @offset of
+ * the attribute value of the attribute @attr in the in memory inode @ino.
+ * If the attribute value of @attr is non-resident the value's contents at
+ * @offset are actually written to disk (from @dest). The on disk mft record
+ * describing the non-resident attribute value is not updated!
+ * If the attribute value is resident then the value is written only in
+ * memory. The on disk mft record containing the value is not written to disk.
+ * A possible fix would be to call ntfs_update_inode() before returning. (AIA)
+ */
+/* Reads l bytes of the attribute (attr, name) of ino starting at offset on
+ * vol into buf. Returns the number of bytes read in the ntfs_io struct.
+ * Returns 0 on success, errno on failure */
+int ntfs_readwrite_attr(ntfs_inode *ino, ntfs_attribute *attr, __s64 offset,
+		ntfs_io *dest)
+{
+	int rnum, s_vcn, error, clustersizebits;
+	ntfs_cluster_t cluster, s_cluster, vcn, len;
+	__s64 l, chunk, copied;
+
+	ntfs_debug(DEBUG_FILE3, "%s(): %s 0x%x bytes at offset "
+			"0x%Lx %s inode 0x%x, attr type 0x%x.\n", __FUNCTION__,
+			dest->do_read ? "Read" : "Write", dest->size, offset,
+			dest->do_read ? "from" : "to", ino->i_number,
+			attr->type);
+	l = dest->size;
+	if (l == 0)
+		return 0;
+	if (dest->do_read) {
+		/* If read _starts_ beyond end of stream, return nothing. */
+		if (offset >= attr->size) {
+			dest->size = 0;
+			return 0;
+		}
+		/* If read _extends_ beyond end of stream, return as much
+		 * initialised data as we have. */
+		if (offset + l >= attr->size)
+			l = dest->size = attr->size - offset;
+	} else {
+		/*
+		 * If write extends beyond _allocated_ size, extend attribute,
+		 * updating attr->allocated and attr->size in the process. (AIA)
+		 */
+		if ((!attr->resident && offset + l > attr->allocated) ||
+				(attr->resident && offset + l > attr->size)) {
+			error = ntfs_resize_attr(ino, attr, offset + l);
+			if (error)
+				return error;
+		}
+		if (!attr->resident) {
+			/* Has amount of data increased? */
+			if (offset + l > attr->size)
+				attr->size = offset + l;
+			/* Has amount of initialised data increased? */
+			if (offset + l > attr->initialized) {
+				/* FIXME: Clear the section between the old
+			 	 * initialised length and the write start.
+				 * (AIA) */
+				attr->initialized = offset + l;
+			}
+		}
+	}
+	if (attr->resident) {
+		if (dest->do_read)
+			dest->fn_put(dest, (ntfs_u8*)attr->d.data + offset, l);
+		else
+			dest->fn_get((ntfs_u8*)attr->d.data + offset, dest, l);
+		dest->size = l;
+		return 0;
+	}
+	if (dest->do_read) {
+		/* Read uninitialized data. */
+		if (offset >= attr->initialized)
+			return ntfs_read_zero(dest, l);
+		if (offset + l > attr->initialized) {
+			dest->size = chunk = attr->initialized - offset;
+			error = ntfs_readwrite_attr(ino, attr, offset, dest);
+			if (error || (dest->size != chunk && (error = -EIO, 1)))
+				return error;
+			dest->size += l - chunk;
+			return ntfs_read_zero(dest, l - chunk);
+		}
+		if (attr->flags & ATTR_IS_COMPRESSED)
+			return ntfs_read_compressed(ino, attr, offset, dest);
+	} else {
+		if (attr->flags & ATTR_IS_COMPRESSED)
+			return ntfs_write_compressed(ino, attr, offset, dest);
+	}
+	vcn = 0;
+	clustersizebits = ino->vol->cluster_size_bits;
+	s_vcn = offset >> clustersizebits;
+	for (rnum = 0; rnum < attr->d.r.len &&
+			vcn + attr->d.r.runlist[rnum].len <= s_vcn; rnum++)
+		vcn += attr->d.r.runlist[rnum].len;
+	if (rnum == attr->d.r.len) {
+		ntfs_debug(DEBUG_FILE3, "%s(): EOPNOTSUPP: "
+			"inode = 0x%x, rnum = %i, offset = 0x%Lx, vcn = 0x%x, "
+			"s_vcn = 0x%x.\n", __FUNCTION__, ino->i_number, rnum,
+			offset, vcn, s_vcn);
+		dump_runlist(attr->d.r.runlist, attr->d.r.len);
+		/*FIXME: Should extend runlist. */
+		return -EOPNOTSUPP;
+	}
+	copied = 0;
+	while (l) {
+		s_vcn = offset >> clustersizebits;
+		cluster = attr->d.r.runlist[rnum].lcn;
+		len = attr->d.r.runlist[rnum].len;
+		s_cluster = cluster + s_vcn - vcn;
+		chunk = ((__s64)(vcn + len) << clustersizebits) - offset;
+		if (chunk > l)
+			chunk = l;
+		dest->size = chunk;
+		error = ntfs_getput_clusters(ino->vol, s_cluster, offset -
+				((__s64)s_vcn << clustersizebits), dest);
+		if (error) {
+			ntfs_error("Read/write error.\n");
+			dest->size = copied;
+			return error;
+		}
+		l -= chunk;
+		copied += chunk;
+		offset += chunk;
+		if (l && offset >= ((__s64)(vcn + len) << clustersizebits)) {
+			rnum++;
+			vcn += len;
+			cluster = attr->d.r.runlist[rnum].lcn;
+			len = attr->d.r.runlist[rnum].len;
+		}
+	}
+	dest->size = copied;
+	return 0;
+}
+
+int ntfs_read_attr(ntfs_inode *ino, int type, char *name, __s64 offset,
+		   ntfs_io *buf)
+{
+	ntfs_attribute *attr;
+
+	buf->do_read = 1;
+	attr = ntfs_find_attr(ino, type, name);
+	if (!attr) {
+		ntfs_debug(DEBUG_FILE3, "%s(): attr 0x%x not found in inode "
+				"0x%x\n", __FUNCTION__, type, ino->i_number);
+		return -EINVAL;
+	}
+	return ntfs_readwrite_attr(ino, attr, offset, buf);
+}
+
+int ntfs_write_attr(ntfs_inode *ino, int type, char *name, __s64 offset,
+		    ntfs_io *buf)
+{
+	ntfs_attribute *attr;
+	
+	buf->do_read = 0;
+	attr = ntfs_find_attr(ino, type, name);
+	if (!attr) {
+		ntfs_debug(DEBUG_FILE3, "%s(): attr 0x%x not found in inode "
+				"0x%x\n", __FUNCTION__, type, ino->i_number);
+		return -EINVAL;
+	}
+	return ntfs_readwrite_attr(ino, attr, offset, buf);
+}
+
+/* -2 = error, -1 = hole, >= 0 means real disk cluster (lcn). */
+int ntfs_vcn_to_lcn(ntfs_inode *ino, int vcn)
+{
+	int rnum;
+	ntfs_attribute *data;
+	
+	data = ntfs_find_attr(ino, ino->vol->at_data, 0);
+	if (!data || data->resident || data->flags & (ATTR_IS_COMPRESSED |
+			ATTR_IS_ENCRYPTED))
+		return -2;
+	if (data->size <= (__s64)vcn << ino->vol->cluster_size_bits)
+		return -2;
+	if (data->initialized <= (__s64)vcn << ino->vol->cluster_size_bits)
+		return -1;
+	for (rnum = 0; rnum < data->d.r.len &&
+			vcn >= data->d.r.runlist[rnum].len; rnum++)
+		vcn -= data->d.r.runlist[rnum].len;
+	if (data->d.r.runlist[rnum].lcn >= 0)
+		return data->d.r.runlist[rnum].lcn + vcn;
+	return data->d.r.runlist[rnum].lcn + vcn;
+}
+
+static int allocate_store(ntfs_volume *vol, ntfs_disk_inode *store, int count)
+{
+	int i;
+	
+	if (store->count > count)
+		return 0;
+	if (store->size < count) {
+		ntfs_mft_record *n = ntfs_malloc((count + 4) * 
+						 sizeof(ntfs_mft_record));
+		if (!n)
+			return -ENOMEM;
+		if (store->size) {
+			for (i = 0; i < store->size; i++)
+				n[i] = store->records[i];
+			ntfs_free(store->records);
+		}
+		store->size = count + 4;
+		store->records = n;
+	}
+	for (i = store->count; i < count; i++) {
+		store->records[i].record = ntfs_malloc(vol->mft_record_size);
+		if (!store->records[i].record)
+			return -ENOMEM;
+		store->count++;
+	}
+	return 0;
+}
+
+static void deallocate_store(ntfs_disk_inode* store)
+{
+	int i;
+	
+	for (i = 0; i < store->count; i++)
+		ntfs_free(store->records[i].record);
+	ntfs_free(store->records);
+	store->count = store->size = 0;
+	store->records = 0;
+}
+
+/**
+ * layout_runs - compress runlist into mapping pairs array
+ * @attr:	attribute containing the runlist to compress
+ * @rec:	destination buffer to hold the mapping pairs array
+ * @offs:	current position in @rec (in/out variable)
+ * @size:	size of the buffer @rec
+ *
+ * layout_runs walks the runlist in @attr, compresses it and writes it out the
+ * resulting mapping pairs array into @rec (up to a maximum of @size bytes are
+ * written). On entry @offs is the offset in @rec at which to begin writing the
+ * mapping pairs array. On exit, it contains the offset in @rec of the first
+ * byte after the end of the mapping pairs array.
+ */
+static int layout_runs(ntfs_attribute *attr, char *rec, int *offs, int size)
+{
+	int i, len, offset, coffs;
+	/* ntfs_cluster_t MUST be signed! (AIA) */
+	ntfs_cluster_t cluster, rclus;
+	ntfs_runlist *rl = attr->d.r.runlist;
+	cluster = 0;
+	offset = *offs;
+	for (i = 0; i < attr->d.r.len; i++) {
+		/*
+		 * We cheat with this check on the basis that lcn will never
+		 * be less than -1 and the lcn delta will fit in signed
+		 * 32-bits (ntfs_cluster_t). (AIA)
+		 */
+		if (rl[i].lcn < (ntfs_cluster_t)-1) {
+			ntfs_error("layout_runs() encountered an out of bounds "
+					"cluster delta, lcn = %i.\n",
+					rl[i].lcn);
+			return -ERANGE;
+		}
+		rclus = rl[i].lcn - cluster;
+		len = rl[i].len;
+		rec[offset] = 0;
+ 		if (offset + 9 > size)
+			return -E2BIG; /* It might still fit, but this
+					* simplifies testing. */
+		/*
+		 * Run length is stored as signed number, so deal with it
+		 * properly, i.e. observe that a negative number will have all
+		 * its most significant bits set to 1 but we don't store that
+		 * in the mapping pairs array. We store the smallest type of
+		 * negative number required, thus in the first if we check
+		 * whether len fits inside a signed byte and if so we store it
+		 * as such, the next ifs check for a signed short, then a signed
+		 * 24-bit and finally the full blown signed 32-bit. Same goes
+		 * for rlus below. (AIA)
+		 */
+		if (len >= -0x80 && len <= 0x7f) {
+			NTFS_PUTU8(rec + offset + 1, len & 0xff);
+			coffs = 1;
+ 		} else if (len >= -0x8000 && len <= 0x7fff) {
+			NTFS_PUTU16(rec + offset + 1, len & 0xffff);
+			coffs = 2;
+ 		} else if (len >= -0x800000 && len <= 0x7fffff) {
+			NTFS_PUTU24(rec + offset + 1, len & 0xffffff);
+			coffs = 3;
+		} else /* if (len >= -0x80000000LL && len <= 0x7fffffff */ {
+			NTFS_PUTU32(rec + offset + 1, len);
+			coffs = 4;
+		} /* else ... FIXME: When len becomes 64-bit we need to extend
+		   * 		     the else if () statements. (AIA) */
+		*(rec + offset) |= coffs++;
+		if (rl[i].lcn == (ntfs_cluster_t)-1) /* Compressed run. */
+			/* Nothing */;
+		else if (rclus >= -0x80 && rclus <= 0x7f) {
+			*(rec + offset) |= 0x10;
+			NTFS_PUTS8(rec + offset + coffs, rclus & 0xff);
+			coffs += 1;
+		} else if (rclus >= -0x8000 && rclus <= 0x7fff) {
+			*(rec + offset) |= 0x20;
+			NTFS_PUTS16(rec + offset + coffs, rclus & 0xffff);
+			coffs += 2;
+		} else if (rclus >= -0x800000 && rclus <= 0x7fffff) {
+			*(rec + offset) |= 0x30;
+			NTFS_PUTS24(rec + offset + coffs, rclus & 0xffffff);
+			coffs += 3;
+		} else /* if (rclus >= -0x80000000LL && rclus <= 0x7fffffff)*/ {
+			*(rec + offset) |= 0x40;
+			NTFS_PUTS32(rec + offset + coffs, rclus
+							/* & 0xffffffffLL */);
+			coffs += 4;
+		} /* FIXME: When rclus becomes 64-bit.
+		else if (rclus >= -0x8000000000 && rclus <= 0x7FFFFFFFFF) {
+			*(rec + offset) |= 0x50;
+			NTFS_PUTS40(rec + offset + coffs, rclus &
+							0xffffffffffLL);
+			coffs += 5;
+		} else if (rclus >= -0x800000000000 && 
+						rclus <= 0x7FFFFFFFFFFF) {
+			*(rec + offset) |= 0x60;
+			NTFS_PUTS48(rec + offset + coffs, rclus &
+							0xffffffffffffLL);
+			coffs += 6;
+		} else if (rclus >= -0x80000000000000 && 
+						rclus <= 0x7FFFFFFFFFFFFF) {
+			*(rec + offset) |= 0x70;
+			NTFS_PUTS56(rec + offset + coffs, rclus &
+							0xffffffffffffffLL);
+			coffs += 7;
+		} else {
+			*(rec + offset) |= 0x80;
+			NTFS_PUTS64(rec + offset + coffs, rclus);
+			coffs += 8;
+		} */
+		offset += coffs;
+		if (rl[i].lcn)
+			cluster = rl[i].lcn;
+	}
+	if (offset >= size)
+		return -E2BIG;
+	/* Terminating null. */
+	*(rec + offset++) = 0;
+	*offs = offset;
+	return 0;
+}
+
+static void count_runs(ntfs_attribute *attr, char *buf)
+{
+	ntfs_u32 first, count, last, i;
+	
+	first = 0;
+	for (i = 0, count = 0; i < attr->d.r.len; i++)
+		count += attr->d.r.runlist[i].len;
+	last = first + count - 1;
+	NTFS_PUTU64(buf + 0x10, first);
+	NTFS_PUTU64(buf + 0x18, last);
+} 
+
+/**
+ * layout_attr - convert in memory attribute to on disk attribute record
+ * @attr:	in memory attribute to convert
+ * @buf:	destination buffer for on disk attribute record
+ * @size:	size of the destination buffer
+ * @psize:	size of converted on disk attribute record (out variable)
+ *
+ * layout_attr() takes the attribute @attr and converts it into the appropriate
+ * on disk structure, writing it into @buf (up to @size bytes are written).
+ *
+ * On success we return 0 and set @*psize to the actual byte size of the on-
+ * disk attribute that was written into @buf.
+ */
+static int layout_attr(ntfs_attribute *attr, char *buf, int size, int *psize)
+{
+	int nameoff, hdrsize, asize;
+	
+	if (attr->resident) {
+		nameoff = 0x18;
+		hdrsize = (nameoff + 2 * attr->namelen + 7) & ~7;
+		asize = (hdrsize + attr->size + 7) & ~7;
+		if (size < asize)
+			return -E2BIG;
+		NTFS_PUTU32(buf + 0x10, attr->size);
+		NTFS_PUTU8(buf + 0x16, attr->indexed);
+		NTFS_PUTU16(buf + 0x14, hdrsize);
+		if (attr->size)
+			ntfs_memcpy(buf + hdrsize, attr->d.data, attr->size);
+	} else {
+		int error;
+
+		if (attr->flags & ATTR_IS_COMPRESSED)
+ 			nameoff = 0x48;
+ 		else
+ 			nameoff = 0x40;
+ 		hdrsize = (nameoff + 2 * attr->namelen + 7) & ~7;
+ 		if (size < hdrsize)
+ 			return -E2BIG;
+ 		/* Make asize point at the end of the attribute record header,
+		   i.e. at the beginning of the mapping pairs array. */
+ 		asize = hdrsize;
+ 		error = layout_runs(attr, buf, &asize, size);
+ 		/* Now, asize points one byte beyond the end of the mapping
+		   pairs array. */
+		if (error)
+ 			return error;
+ 		/* The next attribute has to begin on 8-byte boundary. */
+		asize = (asize + 7) & ~7;
+		/* FIXME: fragments */
+		count_runs(attr, buf);
+		NTFS_PUTU16(buf + 0x20, hdrsize);
+		NTFS_PUTU16(buf + 0x22, attr->cengine);
+		NTFS_PUTU32(buf + 0x24, 0);
+		NTFS_PUTS64(buf + 0x28, attr->allocated);
+		NTFS_PUTS64(buf + 0x30, attr->size);
+		NTFS_PUTS64(buf + 0x38, attr->initialized);
+		if (attr->flags & ATTR_IS_COMPRESSED)
+			NTFS_PUTS64(buf + 0x40, attr->compsize);
+	}
+	NTFS_PUTU32(buf, attr->type);
+	NTFS_PUTU32(buf + 4, asize);
+	NTFS_PUTU8(buf + 8, attr->resident ? 0 : 1);
+	NTFS_PUTU8(buf + 9, attr->namelen);
+	NTFS_PUTU16(buf + 0xa, nameoff);
+	NTFS_PUTU16(buf + 0xc, attr->flags);
+	NTFS_PUTU16(buf + 0xe, attr->attrno);
+	if (attr->namelen)
+		ntfs_memcpy(buf + nameoff, attr->name, 2 * attr->namelen);
+	*psize = asize;
+	return 0;
+}
+
+/**
+ * layout_inode - convert an in-memory inode into on disk mft record(s)
+ * @ino:	in memory inode to convert
+ * @store:	on disk inode, contain buffers for the on disk mft record(s)
+ *
+ * layout_inode takes the in memory inode @ino, converts it into a (sequence of)
+ * mft record(s) and writes them to the appropriate buffers in the @store.
+ *
+ * Return 0 on success,
+ * the required mft record count (>0) if the inode does not fit,
+ * -ENOMEM if memory allocation problem, or
+ * -EOPNOTSUP if beyond our capabilities.
+ *
+ * TODO: We at the moment do not support extension mft records. (AIA)
+ */
+int layout_inode(ntfs_inode *ino, ntfs_disk_inode *store)
+{
+	int offset, i, size, psize, error, count, recno;
+	ntfs_attribute *attr;
+	unsigned char *rec;
+
+	error = allocate_store(ino->vol, store, ino->record_count);
+	if (error)
+		return error;
+	size = ino->vol->mft_record_size;
+ 	count = i = 0;
+ 	do {
+ 		if (count < ino->record_count) {
+ 			recno = ino->records[count];
+ 		} else {
+ 			error = allocate_store(ino->vol, store, count + 1);
+ 			if (error)
+ 				return error;
+	 		recno = -1;
+		}
+		/*
+		 * FIXME: We need to support extension records properly.
+		 * At the moment they wouldn't work. Probably would "just" get
+		 * corrupted if we write to them... (AIA)
+		 */
+	 	store->records[count].recno = recno;
+ 		rec = store->records[count].record;
+	 	count++;
+ 		/* Copy mft record header. */
+	 	offset = NTFS_GETU16(ino->attr + 0x14); /* attrs_offset */
+		ntfs_memcpy(rec, ino->attr, offset);
+	 	/* Copy attributes. */
+ 		while (i < ino->attr_count) {
+ 			attr = ino->attrs + i;
+	 		error = layout_attr(attr, rec + offset,
+					size - offset - 8, &psize);
+	 		if (error == -E2BIG && offset != NTFS_GETU16(ino->attr
+					+ 0x14))
+ 				break;
+ 			if (error)
+ 				return error;
+ 			offset += psize;
+ 			i++;
+ 		}
+ 		/* Terminating attribute. */
+		NTFS_PUTU32(rec + offset, 0xFFFFFFFF);
+		offset += 4;
+		NTFS_PUTU32(rec + offset, 0);
+		offset += 4;
+		NTFS_PUTU32(rec + 0x18, offset);
+	} while (i < ino->attr_count || count < ino->record_count);
+	return count - ino->record_count;
+}
+
+/*
+ * FIXME: ntfs_update_inode() calls layout_inode() to create the mft record on
+ * disk structure corresponding to the inode @ino. After that, ntfs_write_attr()
+ * is called to write out the created mft record to disk.
+ * We shouldn't need to re-layout every single time we are updating an mft
+ * record. No wonder the ntfs driver is slow like hell. (AIA)
+ */
+int ntfs_update_inode(ntfs_inode *ino)
+{
+	int error, i;
+	ntfs_disk_inode store;
+	ntfs_io io;
+
+	ntfs_bzero(&store, sizeof(store));
+	error = layout_inode(ino, &store);
+	if (error == -E2BIG) {
+		i = ntfs_split_indexroot(ino);
+		if (i != -ENOTDIR) {
+			if (!i)
+				i = layout_inode(ino, &store);
+			error = i;
+		}
+	}
+	if (error == -E2BIG) {
+		error = ntfs_attr_allnonresident(ino);
+		if (!error)
+			error = layout_inode(ino, &store);
+	}
+	if (error > 0) {
+		/* FIXME: Introduce extension records. */
+		error = -E2BIG;
+	}
+	if (error) {
+		if (error == -E2BIG)
+			ntfs_error("Cannot handle saving inode 0x%x.\n",
+				   ino->i_number);
+		deallocate_store(&store);
+		return error;
+	}
+	io.fn_get = ntfs_get;
+	io.fn_put = 0;
+	for (i = 0; i < store.count; i++) {
+		error = ntfs_insert_fixups(store.records[i].record,
+				ino->vol->mft_record_size);
+		if (error) {
+			printk(KERN_ALERT "NTFS: ntfs_update_inode() caught "
+					"corrupt %s mtf record ntfs record "
+					"header. Refusing to write corrupt "
+					"data to disk. Unmount and run chkdsk "
+					"immediately!\n", i ? "extension":
+					"base");
+			deallocate_store(&store);
+			return -EIO;
+		}
+		io.param = store.records[i].record;
+		io.size = ino->vol->mft_record_size;
+		error = ntfs_write_attr(ino->vol->mft_ino, ino->vol->at_data,
+				0, (__s64)store.records[i].recno <<
+				ino->vol->mft_record_size_bits, &io);
+		if (error || io.size != ino->vol->mft_record_size) {
+			/* Big trouble, partially written file. */
+			ntfs_error("Please unmount: Write error in inode "
+					"0x%x\n", ino->i_number);
+			deallocate_store(&store);
+			return error ? error : -EIO;
+		}
+	}
+	deallocate_store(&store);
+	return 0;
+}	
+
+void ntfs_decompress(unsigned char *dest, unsigned char *src, ntfs_size_t l)
+{
+	int head, comp;
+	int copied = 0;
+	unsigned char *stop;
+	int bits;
+	int tag = 0;
+	int clear_pos;
+	
+	while (1) {
+		head = NTFS_GETU16(src) & 0xFFF;
+		/* High bit indicates that compression was performed. */
+		comp = NTFS_GETU16(src) & 0x8000;
+		src += 2;
+		stop = src + head;
+		bits = 0;
+		clear_pos = 0;
+		if (head == 0)
+			/* Block is not used. */
+			return;/* FIXME: copied */
+		if (!comp) { /* uncompressible */
+			ntfs_memcpy(dest, src, 0x1000);
+			dest += 0x1000;
+			copied += 0x1000;
+			src += 0x1000;
+			if (l == copied)
+				return;
+			continue;
+		}
+		while (src <= stop) {
+			if (clear_pos > 4096) {
+				ntfs_error("Error 1 in decompress\n");
+				return;
+			}
+			if (!bits) {
+				tag = NTFS_GETU8(src);
+				bits = 8;
+				src++;
+				if (src > stop)
+					break;
+			}
+			if (tag & 1) {
+				int i, len, delta, code, lmask, dshift;
+				code = NTFS_GETU16(src);
+				src += 2;
+				if (!clear_pos) {
+					ntfs_error("Error 2 in decompress\n");
+					return;
+				}
+				for (i = clear_pos - 1, lmask = 0xFFF,
+				     dshift = 12; i >= 0x10; i >>= 1) {
+					lmask >>= 1;
+					dshift--;
+				}
+				delta = code >> dshift;
+				len = (code & lmask) + 3;
+				for (i = 0; i < len; i++) {
+					dest[clear_pos] = dest[clear_pos - 
+								    delta - 1];
+					clear_pos++;
+					copied++;
+					if (copied==l)
+						return;
+				}
+			} else {
+				dest[clear_pos++] = NTFS_GETU8(src);
+				src++;
+				copied++;
+				if (copied==l)
+					return;
+			}
+			tag >>= 1;
+			bits--;
+		}
+		dest += clear_pos;
+	}
+}
+
+/*
+ * NOTE: Neither of the ntfs_*_bit functions are atomic! But we don't need
+ * them atomic at present as we never operate on shared/cached bitmaps.
+ */
+static __inline__ int ntfs_test_bit(unsigned char *byte, const int bit)
+{
+	return byte[bit >> 3] & (1 << (bit & 7)) ? 1 : 0;
+}
+
+static __inline__ void ntfs_set_bit(unsigned char *byte, const int bit)
+{
+	byte[bit >> 3] |= 1 << (bit & 7);
+}
+
+static __inline__ void ntfs_clear_bit(unsigned char *byte, const int bit)
+{
+	byte[bit >> 3] &= ~(1 << (bit & 7));
+}
+
+static __inline__ int ntfs_test_and_clear_bit(unsigned char *byte,
+		const int bit)
+{
+	unsigned char *ptr = byte + (bit >> 3);
+	int b = 1 << (bit & 7);
+	int oldbit = *ptr & b ? 1 : 0;
+	*ptr &= ~b;
+	return oldbit;
+}
+
+static void dump_runlist(const ntfs_runlist *rl, const int rlen)
+{
+#ifdef DEBUG
+	int i;
+	ntfs_cluster_t ct;
+
+	ntfs_debug(DEBUG_OTHER, "%s(): rlen = %i.\n", __FUNCTION__, rlen);
+	ntfs_debug(DEBUG_OTHER, "VCN        LCN        Run length\n");
+	for (i = 0, ct = 0; i < rlen; ct += rl[i++].len) {
+		if (rl[i].lcn == (ntfs_cluster_t)-1)
+			ntfs_debug(DEBUG_OTHER, "0x%-8x LCN_HOLE   0x%-8x "
+					"(%s)\n", ct, rl[i].len, rl[i].len ?
+					"sparse run" : "run list end");
+		else
+			ntfs_debug(DEBUG_OTHER, "0x%-8x 0x%-8x 0x%-8x%s\n", ct,
+					rl[i].lcn, rl[i].len, rl[i].len &&
+					i + 1 < rlen ? "" : " (run list end)");
+		if (!rl[i].len)
+			break;
+	}
+#endif
+}
+
+/**
+ * splice_runlists - splice two run lists into one
+ * @rl1:	pointer to address of first run list
+ * @r1len:	number of elementfs in first run list
+ * @rl2:	pointer to second run list
+ * @r2len:	number of elements in second run list
+ *
+ * Append the run list @rl2 to the run list *@rl1 and return the result in
+ * *@rl1 and *@r1len.
+ *
+ * Return 0 on success or -errno on error, in which case *@rl1 and *@r1len are
+ * left untouched.
+ *
+ * The only possible error code at the moment is -ENOMEM and only happens if
+ * there is insufficient memory to allocate the new run list (only happens
+ * when size of (rl1 + rl2) > allocated size of rl1).
+ */
+int splice_runlists(ntfs_runlist **rl1, int *r1len, const ntfs_runlist *rl2,
+		int r2len)
+{
+	ntfs_runlist *rl;
+	int rlen, rl_size, rl2_pos;
+
+	ntfs_debug(DEBUG_OTHER, "%s(): Entering with *r1len = %i, "
+			"r2len = %i.\n", __FUNCTION__, *r1len, r2len);
+	ntfs_debug(DEBUG_OTHER, "%s(): Dumping 1st runlist.\n", __FUNCTION__);
+	if (*rl1)
+		dump_runlist(*rl1, *r1len);
+	else
+		ntfs_debug(DEBUG_OTHER, "%s(): Not present.\n", __FUNCTION__);
+	ntfs_debug(DEBUG_OTHER, "%s(): Dumping 2nd runlist.\n", __FUNCTION__);
+	dump_runlist(rl2, r2len);
+	rlen = *r1len + r2len + 1;
+	rl_size = (rlen * sizeof(ntfs_runlist) + PAGE_SIZE - 1) &
+			PAGE_MASK;
+	ntfs_debug(DEBUG_OTHER, "%s(): rlen = %i, rl_size = %i.\n",
+			__FUNCTION__, rlen, rl_size);
+	/* Do we have enough space? */
+	if (rl_size <= ((*r1len * sizeof(ntfs_runlist) + PAGE_SIZE - 1) &
+			PAGE_MASK)) {
+		/* Have enough space already. */
+		rl = *rl1;
+		ntfs_debug(DEBUG_OTHER, "%s(): Have enough space already.\n",
+				__FUNCTION__);
+	} else {
+		/* Need more space. Reallocate. */
+		ntfs_debug(DEBUG_OTHER, "%s(): Need more space.\n",
+				__FUNCTION__);
+		rl = ntfs_vmalloc(rlen << sizeof(ntfs_runlist));
+		if (!rl)
+			return -ENOMEM;
+		/* Copy over rl1. */
+		ntfs_memcpy(rl, *rl1, *r1len * sizeof(ntfs_runlist));
+		ntfs_vfree(*rl1);
+		*rl1 = rl;
+	}
+	/* Reuse rl_size as the current position index into rl. */
+	rl_size = *r1len - 1;
+	ntfs_debug(DEBUG_OTHER, "%s(): rl_size = %i.\n", __FUNCTION__,rl_size);
+	/* Coalesce neighbouring elements, if present. */
+	rl2_pos = 0;
+	if (rl[rl_size].lcn + rl[rl_size].len == rl2[rl2_pos].lcn) {
+		ntfs_debug(DEBUG_OTHER, "%s(): Coalescing adjacent runs.\n",
+				__FUNCTION__);
+		ntfs_debug(DEBUG_OTHER, "%s(): Before: rl[rl_size].len = %i.\n",
+				__FUNCTION__, rl[rl_size].len);
+		rl[rl_size].len += rl2[rl2_pos].len;
+		ntfs_debug(DEBUG_OTHER, "%s(): After: rl[rl_size].len = %i.\n",
+				__FUNCTION__, rl[rl_size].len);
+		rl2_pos++;
+		r2len--;
+		rlen--;
+	}
+	rl_size++;
+	/* Copy over rl2. */
+	ntfs_memcpy(rl + rl_size, rl2 + rl2_pos, r2len * sizeof(ntfs_runlist));
+	rlen--;
+	rl[rlen].lcn = (ntfs_cluster_t)-1;
+	rl[rlen].len = (ntfs_cluster_t)0;
+	*r1len = rlen;
+	ntfs_debug(DEBUG_OTHER, "%s(): Dumping result runlist.\n",
+			__FUNCTION__);
+	dump_runlist(*rl1, *r1len);
+	ntfs_debug(DEBUG_OTHER, "%s(): Returning with *r1len = %i.\n",
+			__FUNCTION__, rlen);
+	return 0;
+}
+
+/**
+ * ntfs_alloc_mft_record - allocate an mft record
+ * @vol:	volume to allocate an mft record on
+ * @result:	the mft record number allocated
+ *
+ * Allocate a new mft record on disk. Return 0 on success or -ERRNO on error.
+ * On success, *@result contains the allocated mft record number. On error,
+ * *@result is -1UL.
+ *
+ * Note, this function doesn't actually set the mft record to be in use. This
+ * is done by the caller, which at the moment is only ntfs_alloc_inode().
+ *
+ * To find a free mft record, we scan the mft bitmap for a zero bit. To
+ * optimize this we start scanning at the place where we last stopped and we
+ * perform wrap around when we reach the end. Note, we do not try to allocate
+ * mft records below number 24 because numbers 0 to 15 are the defined system
+ * files anyway and 16 to 24 are special in that they are used for storing
+ * extension mft records for $MFT's $DATA attribute. This is required to avoid
+ * the possibility of creating a run list with a circular dependence which once
+ * written to disk can never be read in again. Windows will only use records
+ * 16 to 24 for normal files if the volume is completely out of space. We never
+ * use them which means that when the volume is really out of space we cannot
+ * create any more files while Windows can still create up to 8 small files. We
+ * can start doing this at some later time, doesn't matter much for now.
+ *
+ * When scanning the mft bitmap, we only search up to the last allocated mft
+ * record. If there are no free records left in the range 24 to number of
+ * allocated mft records, then we extend the mft data in order to create free
+ * mft records. We extend the allocated size of $MFT/$DATA by 16 records at a
+ * time or one cluster, if cluster size is above 16kiB. If there isn't
+ * sufficient space to do this, we try to extend by a single mft record or one
+ * cluster, if cluster size is above mft record size, but we only do this if
+ * there is enough free space, which we know from the values returned by the
+ * failed cluster allocation function when we tried to do the first allocation.
+ *
+ * No matter how many mft records we allocate, we initialize only the first
+ * allocated mft record (incrementing mft data size and initialized size) and
+ * return its number to the caller in @*result, unless there are less than 24
+ * mft records, in which case we allocate and initialize mft records until we
+ * reach record 24 which we consider as the first free mft record for use by
+ * normal files.
+ *
+ * If during any stage we overflow the initialized data in the mft bitmap, we
+ * extend the initialized size (and data size) by 8 bytes, allocating another
+ * cluster if required. The bitmap data size has to be at least equal to the
+ * number of mft records in the mft, but it can be bigger, in which case the
+ * superflous bits are padded with zeroes.
+ *
+ * Thus, when we return successfully (return value 0), we will have:
+ *	- initialized / extended the mft bitmap if necessary,
+ *	- initialized / extended the mft data if necessary,
+ *	- set the bit corresponding to the mft record being allocated in the
+ *	  mft bitmap, and we will
+ *	- return the mft record number in @*result.
+ *
+ * On error (return value below zero), nothing will have changed. If we had
+ * changed anything before the error occured, we will have reverted back to
+ * the starting state before returning to the caller. Thus, except for bugs,
+ * we should always leave the volume in a consitents state when returning from
+ * this function. NOTE: Small exception to this is that we set the bit in the
+ * mft bitmap but we do not mark the mft record in use, which is inconsistent.
+ * However, the caller will immediately add the wanted attributes to the mft
+ * record, set it in use and write it out to disk, so there should be no
+ * problem.
+ *
+ * Note, this function cannot make use of most of the normal functions, like
+ * for example for attribute resizing, etc, because when the run list overflows
+ * the base mft record and an attribute list is used, it is very important
+ * that the extension mft records used to store the $DATA attribute of $MFT
+ * can be reached without having to read the information contained inside
+ * them, as this would make it impossible to find them in the first place
+ * after the volume is dismounted. $MFT/$BITMAP probably doesn't need to
+ * follow this rule because the bitmap is not essential for finding the mft
+ * records, but on the other hand, handling the bitmap in this special way
+ * would make life easier because otherwise there might be circular invocations
+ * of functions when reading the bitmap but if we are careful, we should be
+ * able to avoid all problems.
+ *
+ * FIXME: Don't forget $MftMirr, though this probably belongs in
+ *	  ntfs_update_inode() (or even deeper). (AIA)
+ *
+ * FIXME: Want finer grained locking. (AIA)
+ */
+static int ntfs_alloc_mft_record(ntfs_volume *vol, unsigned long *result)
+{
+	unsigned long nr_mft_records, buf_size, buf_pos, pass_start, pass_end;
+	unsigned long last_read_pos, mft_rec_size, bit, l;
+	ntfs_attribute *data, *bmp;
+	__u8 *buf, *byte, pass, b, have_allocated_mftbmp = 0;
+	int rlen, rl_size = 0, r2len, rl2_size, old_data_rlen, err = 0;
+	ntfs_runlist *rl, *rl2;
+	ntfs_cluster_t lcn = 0, old_data_len;
+	ntfs_io io;
+	__s64 ll, old_data_allocated, old_data_initialized, old_data_size;
+
+	*result = -1UL;
+	/* Allocate a buffer and setup the io structure. */
+	buf = (__u8*)__get_free_page(GFP_NOFS);
+	if (!buf)
+		return -ENOMEM;
+	lock_kernel();
+	/* Get the $DATA and $BITMAP attributes of $MFT. */
+	data = ntfs_find_attr(vol->mft_ino, vol->at_data, 0);
+	bmp = ntfs_find_attr(vol->mft_ino, vol->at_bitmap, 0);
+	if (!data || !bmp) {
+		err = -EINVAL;
+		goto err_ret;
+	}
+	/* Determine the number of allocated mft records in the mft. */
+	pass_end = nr_mft_records = data->allocated >>
+			vol->mft_record_size_bits;
+	ntfs_debug(DEBUG_OTHER, "%s(): nr_mft_records = %lu.\n", __FUNCTION__,
+			nr_mft_records);
+	/* Make sure we don't overflow the bitmap. */
+	l = bmp->initialized << 3;
+	if (l < nr_mft_records)
+		// FIXME: It might be a good idea to extend the bitmap instead.
+		pass_end = l;
+	pass = 1;
+	buf_pos = vol->mft_data_pos;
+	if (buf_pos >= pass_end) {
+		buf_pos = 24UL;
+		pass = 2;
+	}
+	pass_start = buf_pos;
+	rl = bmp->d.r.runlist;
+	rlen = bmp->d.r.len - 1;
+	lcn = rl[rlen].lcn + rl[rlen].len;
+	io.fn_put = ntfs_put;
+	io.fn_get = ntfs_get;
+	ntfs_debug(DEBUG_OTHER, "%s(): Starting bitmap search.\n",
+			__FUNCTION__);
+	ntfs_debug(DEBUG_OTHER, "%s(): pass = %i, pass_start = %lu, pass_end = "
+			"%lu.\n", __FUNCTION__, pass, pass_start, pass_end);
+	byte = NULL; // FIXME: For debugging only.
+	/* Loop until a free mft record is found. */
+	io.size = (nr_mft_records >> 3) & ~PAGE_MASK;
+	for (;; io.size = PAGE_SIZE) {
+		io.param = buf;
+		io.do_read = 1;
+		last_read_pos = buf_pos >> 3;
+		ntfs_debug(DEBUG_OTHER, "%s(): Before: bmp->allocated = 0x%Lx, "
+				"bmp->size = 0x%Lx, bmp->initialized = "
+				"0x%Lx.\n", __FUNCTION__, bmp->allocated,
+				bmp->size, bmp->initialized);
+		err = ntfs_readwrite_attr(vol->mft_ino, bmp, last_read_pos,
+				&io);
+		if (err)
+			goto err_ret;
+		ntfs_debug(DEBUG_OTHER, "%s(): Read %lu bytes.\n", __FUNCTION__,
+				(unsigned long)io.size);
+		ntfs_debug(DEBUG_OTHER, "%s(): After: bmp->allocated = 0x%Lx, "
+				"bmp->size = 0x%Lx, bmp->initialized = "
+				"0x%Lx.\n", __FUNCTION__, bmp->allocated,
+				bmp->size, bmp->initialized);
+		if (!io.size)
+			goto pass_done;
+		buf_size = io.size << 3;
+		bit = buf_pos & 7UL;
+		buf_pos &= ~7UL;
+		ntfs_debug(DEBUG_OTHER, "%s(): Before loop: buf_size = %lu, "
+				"buf_pos = %lu, bit = %lu, *byte = 0x%x, b = "
+				"%u.\n", __FUNCTION__, buf_size, buf_pos, bit,
+				byte ? *byte : -1, b);
+		for (; bit < buf_size && bit + buf_pos < pass_end;
+				bit &= ~7UL, bit += 8UL) {
+			byte = buf + (bit >> 3);
+			if (*byte == 0xff)
+				continue;
+			b = ffz((unsigned long)*byte);
+			if (b < (__u8)8 && b >= (bit & 7UL)) {
+				bit = b + (bit & ~7UL) + buf_pos;
+				ntfs_debug(DEBUG_OTHER, "%s(): Found free rec "
+						"in for loop. bit = %lu\n",
+						__FUNCTION__, bit);
+				goto found_free_rec;
+			}
+		}
+		ntfs_debug(DEBUG_OTHER, "%s(): After loop: buf_size = %lu, "
+				"buf_pos = %lu, bit = %lu, *byte = 0x%x, b = "
+				"%u.\n", __FUNCTION__, buf_size, buf_pos, bit,
+				byte ? *byte : -1, b);
+		buf_pos += buf_size;
+		if (buf_pos < pass_end)
+			continue;
+pass_done:	/* Finished with the current pass. */
+		ntfs_debug(DEBUG_OTHER, "%s(): At pass_done.\n", __FUNCTION__);
+		if (pass == 1) {
+			/*
+			 * Now do pass 2, scanning the first part of the zone
+			 * we omitted in pass 1.
+			 */
+			ntfs_debug(DEBUG_OTHER, "%s(): Done pass 1.\n",
+					__FUNCTION__);
+			ntfs_debug(DEBUG_OTHER, "%s(): Pass = 2.\n",
+					__FUNCTION__);
+			pass = 2;
+			pass_end = pass_start;
+			buf_pos = pass_start = 24UL;
+			ntfs_debug(DEBUG_OTHER, "%s(): pass = %i, pass_start = "
+					"%lu, pass_end = %lu.\n", __FUNCTION__,
+					pass, pass_start, pass_end);
+			continue;
+		} /* pass == 2 */
+		/* No free records left. */
+		if (bmp->initialized << 3 > nr_mft_records &&
+				bmp->initialized > 3) {
+			/*
+			 * The mft bitmap is already bigger but the space is
+			 * not covered by mft records, this implies that the
+			 * next records are all free, so we already have found
+			 * a free record.
+			 */
+			bit = nr_mft_records;
+			if (bit < 24UL)
+				bit = 24UL;
+			ntfs_debug(DEBUG_OTHER, "%s(): Found free record bit "
+					"(#1) = 0x%lx.\n", __FUNCTION__, bit);
+			goto found_free_rec;
+		}
+		ntfs_debug(DEBUG_OTHER, "%s(): Done pass 2.\n", __FUNCTION__);
+		ntfs_debug(DEBUG_OTHER, "%s(): Before: bmp->allocated = 0x%Lx, "
+				"bmp->size = 0x%Lx, bmp->initialized = "
+				"0x%Lx.\n", __FUNCTION__, bmp->allocated,
+				bmp->size, bmp->initialized);
+		/* Need to extend the mft bitmap. */
+		if (bmp->initialized + 8LL > bmp->allocated) {
+			ntfs_io io2;
+
+			ntfs_debug(DEBUG_OTHER, "%s(): Initialized "
+					"> allocated.\n", __FUNCTION__);
+			/* Need to extend bitmap by one more cluster. */
+			rl = bmp->d.r.runlist;
+			rlen = bmp->d.r.len - 1;
+			lcn = rl[rlen].lcn + rl[rlen].len;
+			io2.fn_put = ntfs_put;
+			io2.fn_get = ntfs_get;
+			io2.param = &b;
+			io2.size = 1;
+			io2.do_read = 1;
+			err = ntfs_readwrite_attr(vol->bitmap, data, lcn >> 3,
+					&io2);
+			if (err)
+				goto err_ret;
+			ntfs_debug(DEBUG_OTHER, "%s(): Read %lu bytes.\n",
+					__FUNCTION__, (unsigned long)io2.size);
+			if (io2.size == 1 && b != 0xff) {
+				__u8 tb = 1 << (lcn & (ntfs_cluster_t)7);
+				if (!(b & tb)) {
+					/* Next cluster is free. Allocate it. */
+					b |= tb;
+					io2.param = &b;
+					io2.do_read = 0;
+					err = ntfs_readwrite_attr(vol->bitmap,
+							data, lcn >> 3, &io2);
+					if (err || io.size != 1) {
+						if (!err)
+							err = -EIO;
+						goto err_ret;
+					}
+append_mftbmp_simple:			rl[rlen].len++;
+					have_allocated_mftbmp |= 1;
+					ntfs_debug(DEBUG_OTHER, "%s(): "
+							"Appending one cluster "
+							"to mftbmp.\n",
+							__FUNCTION__);
+				}
+			}
+			if (!have_allocated_mftbmp) {
+				/* Allocate a cluster from the DATA_ZONE. */
+				ntfs_cluster_t lcn2 = lcn;
+				ntfs_cluster_t count = 1;
+				err = ntfs_allocate_clusters(vol, &lcn2,
+						&count, &rl2, &r2len,
+						DATA_ZONE);
+				if (err)
+					goto err_ret;
+				if (count != 1 || lcn2 <= 0) {
+					if (count > 0) {
+rl2_dealloc_err_out:				if (ntfs_deallocate_clusters(
+							vol, rl2, r2len))
+							ntfs_error("%s(): "
+							"Cluster "
+							"deallocation in error "
+							"code path failed! You "
+							"should run chkdsk.\n",
+							__FUNCTION__);
+					}
+					ntfs_vfree(rl2);
+					if (!err)
+						err = -EINVAL;
+					goto err_ret;
+				}
+				if (lcn2 == lcn) {
+					ntfs_vfree(rl2);
+					goto append_mftbmp_simple;
+				}
+				/* We need to append a new run. */
+				rl_size = (rlen * sizeof(ntfs_runlist) +
+						PAGE_SIZE - 1) & PAGE_MASK;
+				/* Reallocate memory if necessary. */
+				if ((rlen + 2) * sizeof(ntfs_runlist) >=
+						rl_size) {
+					ntfs_runlist *rlt;
+
+					rl_size += PAGE_SIZE;
+					rlt = ntfs_vmalloc(rl_size);
+					if (!rlt) {
+						err = -ENOMEM;
+						goto rl2_dealloc_err_out;
+					}
+					ntfs_memcpy(rlt, rl, rl_size -
+							PAGE_SIZE);
+					ntfs_vfree(rl);
+					bmp->d.r.runlist = rl = rlt;
+				}
+				ntfs_vfree(rl2);
+				rl[rlen].lcn = lcn = lcn2;
+				rl[rlen].len = count;
+				bmp->d.r.len = ++rlen;
+				have_allocated_mftbmp |= 2;
+				ntfs_debug(DEBUG_OTHER, "%s(): Adding run to "
+						"mftbmp. LCN = %i, len = %i\n",
+						__FUNCTION__, lcn, count);
+			}
+			/*
+			 * We now have extended the mft bitmap allocated size
+			 * by one cluster. Reflect this in the attribute.
+			 */
+			bmp->allocated += (__s64)vol->cluster_size;
+		}
+		ntfs_debug(DEBUG_OTHER, "%s(): After: bmp->allocated = 0x%Lx, "
+				"bmp->size = 0x%Lx, bmp->initialized = "
+				"0x%Lx.\n", __FUNCTION__, bmp->allocated,
+				bmp->size, bmp->initialized);
+		/* We now have sufficient allocated space. */
+		ntfs_debug(DEBUG_OTHER, "%s(): Now have sufficient allocated "
+				"space in mftbmp.\n", __FUNCTION__);
+		ntfs_debug(DEBUG_OTHER, "%s(): Before: bmp->allocated = 0x%Lx, "
+				"bmp->size = 0x%Lx, bmp->initialized = "
+				"0x%Lx.\n", __FUNCTION__, bmp->allocated,
+				bmp->size, bmp->initialized);
+		buf_pos = bmp->initialized;
+		bmp->initialized += 8LL;
+		if (bmp->initialized > bmp->size)
+			bmp->size = bmp->initialized;
+		ntfs_debug(DEBUG_OTHER, "%s(): After: bmp->allocated = 0x%Lx, "
+				"bmp->size = 0x%Lx, bmp->initialized = "
+				"0x%Lx.\n", __FUNCTION__, bmp->allocated,
+				bmp->size, bmp->initialized);
+		have_allocated_mftbmp |= 4;
+		/* Update the mft bitmap attribute value. */
+		memset(buf, 0, 8);
+		io.param = buf;
+		io.size = 8;
+		io.do_read = 0;
+		err = ntfs_readwrite_attr(vol->mft_ino, bmp, buf_pos, &io);
+		if (err || io.size != 8) {
+			if (!err)
+				err = -EIO;
+			goto shrink_mftbmp_err_ret;
+		}
+		ntfs_debug(DEBUG_OTHER, "%s(): Wrote extended mftbmp bytes "
+				"%lu.\n", __FUNCTION__, (unsigned long)io.size);
+		ntfs_debug(DEBUG_OTHER, "%s(): After write: bmp->allocated = "
+				"0x%Lx, bmp->size = 0x%Lx, bmp->initialized = "
+				"0x%Lx.\n", __FUNCTION__, bmp->allocated,
+				bmp->size, bmp->initialized);
+		bit = buf_pos << 3;
+		ntfs_debug(DEBUG_OTHER, "%s(): Found free record bit (#2) = "
+				"0x%lx.\n", __FUNCTION__, bit);
+		goto found_free_rec;
+	}
+found_free_rec:
+	/* bit is the found free mft record. Allocate it in the mft bitmap. */
+	vol->mft_data_pos = bit;
+	ntfs_debug(DEBUG_OTHER, "%s(): At found_free_rec.\n", __FUNCTION__);
+	io.param = buf;
+	io.size = 1;
+	io.do_read = 1;
+	ntfs_debug(DEBUG_OTHER, "%s(): Before update: bmp->allocated = 0x%Lx, "
+			"bmp->size = 0x%Lx, bmp->initialized = 0x%Lx.\n",
+			__FUNCTION__, bmp->allocated,
+			bmp->size, bmp->initialized);
+	err = ntfs_readwrite_attr(vol->mft_ino, bmp, bit >> 3, &io);
+	if (err || io.size != 1) {
+		if (!err)
+			err = -EIO;
+		goto shrink_mftbmp_err_ret;
+	}
+	ntfs_debug(DEBUG_OTHER, "%s(): Read %lu bytes.\n", __FUNCTION__,
+			(unsigned long)io.size);
+#ifdef DEBUG
+	/* Check our bit is really zero! */
+	if (*buf & (1 << (bit & 7)))
+		BUG();
+#endif
+	*buf |= 1 << (bit & 7);
+	io.param = buf;
+	io.do_read = 0;
+	err = ntfs_readwrite_attr(vol->mft_ino, bmp, bit >> 3, &io);
+	if (err || io.size != 1) {
+		if (!err)
+			err = -EIO;
+		goto shrink_mftbmp_err_ret;
+	}
+	ntfs_debug(DEBUG_OTHER, "%s(): Wrote %lu bytes.\n", __FUNCTION__,
+			(unsigned long)io.size);
+	ntfs_debug(DEBUG_OTHER, "%s(): After update: bmp->allocated = 0x%Lx, "
+			"bmp->size = 0x%Lx, bmp->initialized = 0x%Lx.\n",
+			__FUNCTION__, bmp->allocated,
+			bmp->size, bmp->initialized);
+	/* The mft bitmap is now uptodate. Deal with mft data attribute now. */
+	ll = (__s64)(bit + 1) << vol->mft_record_size_bits;
+	if (ll <= data->initialized) {
+		/* The allocated record is already initialized. We are done! */
+		ntfs_debug(DEBUG_OTHER, "%s(): Allocated mft record "
+				"already initialized!\n", __FUNCTION__);
+		goto done_ret;
+	}
+	ntfs_debug(DEBUG_OTHER, "%s(): Allocated mft record needs "
+			"to be initialized.\n", __FUNCTION__);
+	/* The mft record is outside the initialized data. */
+	mft_rec_size = (unsigned long)vol->mft_record_size;
+	/* Preserve old values for undo purposes. */
+	old_data_allocated = data->allocated;
+	old_data_rlen = data->d.r.len - 1;
+	old_data_len = data->d.r.runlist[old_data_rlen].len;
+	/*
+	 * If necessary, extend the mft until it covers the allocated record.
+	 * The loop is only actually used when a freshly formatted volume is
+	 * first written to. But it optimizes away nicely in the common case.
+	 */
+	while (ll > data->allocated) {
+		ntfs_cluster_t lcn2, nr_lcn2, nr, min_nr;
+
+		ntfs_debug(DEBUG_OTHER, "%s(): Extending mft data allocation, "
+				"data->allocated = 0x%Lx, data->size = 0x%Lx, "
+				"data->initialized = 0x%Lx.\n", __FUNCTION__,
+				data->allocated, data->size, data->initialized);
+		/* Minimum allocation is one mft record worth of clusters. */
+		if (mft_rec_size <= vol->cluster_size)
+			min_nr = (ntfs_cluster_t)1;
+		else
+			min_nr = mft_rec_size >> vol->cluster_size_bits;
+		ntfs_debug(DEBUG_OTHER, "%s(): min_nr = %i.\n", __FUNCTION__,
+				min_nr);
+		/* Allocate 16 mft records worth of clusters. */
+		nr = mft_rec_size << 4 >> vol->cluster_size_bits;
+		if (!nr)
+			nr = (ntfs_cluster_t)1;
+		/* Determine the preferred allocation location. */
+		ntfs_debug(DEBUG_OTHER, "%s(): nr = %i.\n", __FUNCTION__, nr);
+		rl2 = data->d.r.runlist;
+		r2len = data->d.r.len;
+		lcn2 = rl2[r2len - 1].lcn + rl2[r2len - 1].len;
+		ntfs_debug(DEBUG_OTHER, "%s(): rl2[r2len - 1].lcn = %i, .len = "
+				"%i.\n", __FUNCTION__, rl2[r2len - 1].lcn,
+				rl2[r2len - 1].len);
+		ntfs_debug(DEBUG_OTHER, "%s(): lcn2 = %i, r2len = %i.\n",
+				__FUNCTION__, lcn2, r2len);
+retry_mft_data_allocation:
+		nr_lcn2 = nr;
+		err = ntfs_allocate_clusters(vol, &lcn2, &nr_lcn2, &rl2,
+				&r2len, MFT_ZONE);
+#ifdef DEBUG
+		if (!err && nr_lcn2 < min_nr)
+			/* Allocated less than minimum needed. Weird! */
+			BUG();
+#endif
+		if (err) {
+			/*
+			 * If there isn't enough space to do the wanted
+			 * allocation, but there is enough space to do a
+			 * minimal allocation, then try that, unless the wanted
+			 * allocation was already the minimal allocation.
+			 */
+			if (err == -ENOSPC && nr > min_nr &&
+					nr_lcn2 >= min_nr) {
+				nr = min_nr;
+				ntfs_debug(DEBUG_OTHER, "%s(): Retrying mft "
+						"data allocation, nr = min_nr "
+						"= %i.\n", __FUNCTION__, nr);
+				goto retry_mft_data_allocation;
+			}
+			goto undo_mftbmp_alloc_err_ret;
+		}
+		ntfs_debug(DEBUG_OTHER, "%s(): Allocated %i clusters starting "
+				"at LCN %i.\n", __FUNCTION__, nr_lcn2, lcn2);
+		ntfs_debug(DEBUG_OTHER, "%s(): Allocated runlist:\n",
+				__FUNCTION__);
+		dump_runlist(rl2, r2len);
+		/* Append rl2 to the mft data attribute's run list. */
+		err = splice_runlists(&data->d.r.runlist, (int*)&data->d.r.len,
+				rl2, r2len);
+		if (err) {
+			ntfs_debug(DEBUG_OTHER, "%s(): splice_runlists failed "
+					"with error code %i.\n", __FUNCTION__,
+					-err);
+			goto undo_partial_data_alloc_err_ret;
+		}
+		/* Reflect the allocated clusters in the mft allocated data. */
+		data->allocated += nr_lcn2 << vol->cluster_size_bits;
+		ntfs_debug(DEBUG_OTHER, "%s(): After extending mft data "
+				"allocation, data->allocated = 0x%Lx, "
+				"data->size = 0x%Lx, data->initialized = "
+				"0x%Lx.\n", __FUNCTION__, data->allocated,
+				data->size, data->initialized);
+	}
+	/* Prepare a formatted (empty) mft record. */
+	memset(buf, 0, mft_rec_size);
+	ntfs_fill_mft_header(buf, mft_rec_size, 0, 0, 0);
+	err = ntfs_insert_fixups(buf, mft_rec_size);
+	if (err)
+		goto undo_data_alloc_err_ret;
+	/*
+	 * Extend mft data initialized size to reach the allocated mft record
+	 * and write the formatted mft record buffer to each mft record being
+	 * initialized. Note, that ntfs_readwrite_attr extends both
+	 * data->initialized and data->size, so no need for us to touch them.
+	 */
+	old_data_initialized = data->initialized;
+	old_data_size = data->size;
+	while (ll > data->initialized) {
+		ntfs_debug(DEBUG_OTHER, "%s(): Initializing mft record "
+				"0x%Lx.\n", __FUNCTION__, 
+				data->initialized >> vol->mft_record_size_bits);
+		io.param = buf;
+		io.size = mft_rec_size;
+		io.do_read = 0;
+		err = ntfs_readwrite_attr(vol->mft_ino, data,
+				data->initialized, &io);
+		if (err || io.size != mft_rec_size) {
+			if (!err)
+				err = -EIO;
+			goto undo_data_init_err_ret;
+		}
+		ntfs_debug(DEBUG_OTHER, "%s(): Wrote %i bytes to mft data.\n",
+				__FUNCTION__, io.size);
+	}
+	/* Update the VFS inode size as well. */
+	VFS_I(vol->mft_ino)->i_size = data->size;
+#ifdef DEBUG
+	ntfs_debug(DEBUG_OTHER, "%s(): After mft record "
+			"initialization: data->allocated = 0x%Lx, data->size "
+			"= 0x%Lx, data->initialized = 0x%Lx.\n", __FUNCTION__,
+			data->allocated, data->size, data->initialized);
+	/* Sanity checks. */
+	if (data->size > data->allocated || data->size < data->initialized ||
+			data->initialized > data->allocated)
+		BUG();
+#endif
+done_ret:
+	/* Return the number of the allocated mft record. */
+	ntfs_debug(DEBUG_OTHER, "%s(): At done_ret. *result = bit = 0x%lx.\n",
+			__FUNCTION__, bit);
+	*result = bit;
+	vol->mft_data_pos = bit + 1;
+err_ret:
+	unlock_kernel();
+	free_page((unsigned long)buf);
+	ntfs_debug(DEBUG_OTHER, "%s(): Syncing inode $MFT.\n", __FUNCTION__);
+	if (ntfs_update_inode(vol->mft_ino))
+		ntfs_error("%s(): Failed to sync inode $MFT. "
+				"Continuing anyway.\n",__FUNCTION__);
+	if (!err) {
+		ntfs_debug(DEBUG_FILE3, "%s(): Done. Allocated mft record "
+				"number *result = 0x%lx.\n", __FUNCTION__,
+				*result);
+		return 0;
+	}
+	if (err != -ENOSPC)
+		ntfs_error("%s(): Failed to allocate an mft record. Returning "
+				"error code %i.\n", __FUNCTION__, -err);
+	else
+		ntfs_debug(DEBUG_FILE3, "%s(): Failed to allocate an mft "
+				"record due to lack of free space.\n",
+				__FUNCTION__);
+	return err;
+undo_data_init_err_ret:
+	ntfs_debug(DEBUG_OTHER, "%s(): At undo_data_init_err_ret.\n",
+			__FUNCTION__);
+	data->initialized = old_data_initialized;
+	data->size = old_data_size;
+undo_data_alloc_err_ret:
+	ntfs_debug(DEBUG_OTHER, "%s(): At undo_data_alloc_err_ret.\n",
+			__FUNCTION__);
+	data->allocated = old_data_allocated;
+undo_partial_data_alloc_err_ret:
+	ntfs_debug(DEBUG_OTHER, "%s(): At undo_partial_data_alloc_err_ret.\n",
+			__FUNCTION__);
+	/* Deallocate the clusters. */
+	if (ntfs_deallocate_clusters(vol, rl2, r2len))
+		ntfs_error("%s(): Error deallocating clusters in error code "
+			"path. You should run chkdsk.\n", __FUNCTION__);
+	ntfs_vfree(rl2);
+	/* Revert the run list back to what it was before. */
+	r2len = data->d.r.len;
+	rl2 = data->d.r.runlist;
+	rl2[old_data_rlen++].len = old_data_len;
+	rl2[old_data_rlen].lcn = (ntfs_cluster_t)-1;
+	rl2[old_data_rlen].len = (ntfs_cluster_t)0;
+	data->d.r.len = old_data_rlen;
+	rl2_size = ((old_data_rlen + 1) * sizeof(ntfs_runlist) + PAGE_SIZE -
+			1) & PAGE_MASK;
+	/* Reallocate memory freeing any extra memory allocated. */
+	if (rl2_size < ((r2len * sizeof(ntfs_runlist) + PAGE_SIZE - 1) &
+			PAGE_MASK)) {
+		rl2 = ntfs_vmalloc(rl2_size);
+		if (rl2) {
+			ntfs_memcpy(rl2, data->d.r.runlist, rl2_size);
+			ntfs_vfree(data->d.r.runlist);
+			data->d.r.runlist = rl2;
+		} else
+			ntfs_error("%s(): Error reallocating "
+					"memory in error code path. This "
+					"should be harmless.\n", __FUNCTION__);
+	}	
+undo_mftbmp_alloc_err_ret:
+	ntfs_debug(DEBUG_OTHER, "%s(): At undo_mftbmp_alloc_err_ret.\n",
+			__FUNCTION__);
+	/* Deallocate the allocated bit in the mft bitmap. */
+	io.param = buf;
+	io.size = 1;
+	io.do_read = 1;
+	err = ntfs_readwrite_attr(vol->mft_ino, bmp, bit >> 3, &io);
+	if (!err && io.size == 1) {
+		*buf &= ~(1 << (bit & 7));
+		io.param = buf;
+		io.do_read = 0;
+		err = ntfs_readwrite_attr(vol->mft_ino, bmp, bit >> 3, &io);
+	}
+	if (err || io.size != 1) {
+		if (!err)
+			err = -EIO;
+		ntfs_error("%s(): Error deallocating mft record in error code "
+			"path. You should run chkdsk.\n", __FUNCTION__);
+	}
+shrink_mftbmp_err_ret:
+	ntfs_debug(DEBUG_OTHER, "%s(): At shrink_mftbmp_err_ret.\n",
+			__FUNCTION__);
+	ntfs_debug(DEBUG_OTHER, "%s(): have_allocated_mftbmp = %i.\n",
+			__FUNCTION__, have_allocated_mftbmp);
+	if (!have_allocated_mftbmp)
+		goto err_ret;
+	/* Shrink the mftbmp back to previous size. */
+	if (bmp->size == bmp->initialized)
+		bmp->size -= 8LL;
+	bmp->initialized -= 8LL;
+	have_allocated_mftbmp &= ~4;
+	/* If no allocation occured then we are done. */
+	ntfs_debug(DEBUG_OTHER, "%s(): have_allocated_mftbmp = %i.\n",
+			__FUNCTION__, have_allocated_mftbmp);
+	if (!have_allocated_mftbmp)
+		goto err_ret;
+	/* Deallocate the allocated cluster. */
+	bmp->allocated -= (__s64)vol->cluster_size;
+	if (ntfs_deallocate_cluster_run(vol, lcn, (ntfs_cluster_t)1))
+		ntfs_error("%s(): Error deallocating cluster in error code "
+			"path. You should run chkdsk.\n", __FUNCTION__);
+	switch (have_allocated_mftbmp & 3) {
+	case 1:
+		/* Delete the last lcn from the last run of mftbmp. */
+		rl[rlen - 1].len--;
+		break;
+	case 2:
+		/* Delete the last run of mftbmp. */
+		bmp->d.r.len = --rlen;
+		/* Reallocate memory if necessary. */
+		if ((rlen + 1) * sizeof(ntfs_runlist) <= rl_size - PAGE_SIZE) {
+			ntfs_runlist *rlt;
+
+			rl_size -= PAGE_SIZE;
+			rlt = ntfs_vmalloc(rl_size);
+			if (rlt) {
+				ntfs_memcpy(rlt, rl, rl_size);
+				ntfs_vfree(rl);
+				bmp->d.r.runlist = rl = rlt;
+			} else
+				ntfs_error("%s(): Error "
+						"reallocating memory in error "
+						"code path. This should be "
+						"harmless.\n", __FUNCTION__);
+		}
+		bmp->d.r.runlist[bmp->d.r.len].lcn = (ntfs_cluster_t)-1;
+		bmp->d.r.runlist[bmp->d.r.len].len = (ntfs_cluster_t)0;
+		break;
+	default:
+		BUG();
+	}
+	goto err_ret;
+}
+
+/* We need 0x48 bytes in total. */
+static int add_standard_information(ntfs_inode *ino)
+{
+	ntfs_time64_t now;
+	char data[0x30];
+	char *position = data;
+	ntfs_attribute *si;
+
+	now = ntfs_now();
+	NTFS_PUTU64(position + 0x00, now);		/* File creation */
+	NTFS_PUTU64(position + 0x08, now);		/* Last modification */
+	NTFS_PUTU64(position + 0x10, now);		/* Last mod for MFT */
+	NTFS_PUTU64(position + 0x18, now);		/* Last access */
+	NTFS_PUTU64(position + 0x20, 0);		/* MSDOS file perms */
+	NTFS_PUTU64(position + 0x28, 0);		/* unknown */
+	return ntfs_create_attr(ino, ino->vol->at_standard_information, 0,
+			data, sizeof(data), &si);
+}
+
+static int add_filename(ntfs_inode *ino, ntfs_inode *dir, 
+		const unsigned char *filename, int length, ntfs_u32 flags)
+{
+	unsigned char *position;
+	unsigned int size;
+	ntfs_time64_t now;
+	int count, error;
+	unsigned char* data;
+	ntfs_attribute *fn;
+
+	/* Work out the size. */
+	size = 0x42 + 2 * length;
+	data = ntfs_malloc(size);
+	if (!data)
+		return -ENOMEM;
+	/* Search for a position. */
+	position = data;
+	NTFS_PUTINUM(position, dir);			/* Inode num of dir */
+	now = ntfs_now();
+	NTFS_PUTU64(position + 0x08, now);		/* File creation */
+	NTFS_PUTU64(position + 0x10, now);		/* Last modification */
+	NTFS_PUTU64(position + 0x18, now);		/* Last mod for MFT */
+	NTFS_PUTU64(position + 0x20, now);		/* Last access */
+	/* FIXME: Get the following two sizes by finding the data attribute
+	 * in ino->attr and copying the corresponding fields from there.
+	 * If no data present then set to zero. In current implementation
+	 * add_data is called after add_filename so zero is correct on
+	 * creation. Need to change when we have hard links / support different
+	 * filename namespaces. (AIA) */
+	NTFS_PUTS64(position + 0x28, 0);		/* Allocated size */
+	NTFS_PUTS64(position + 0x30, 0);		/* Data size */
+	NTFS_PUTU32(position + 0x38, flags);		/* File flags */
+	NTFS_PUTU32(position + 0x3c, 0);		/* We don't use these
+							 * features yet. */
+	NTFS_PUTU8(position + 0x40, length);		/* Filename length */
+	NTFS_PUTU8(position + 0x41, 0);			/* Only long name */
+		/* FIXME: This is madness. We are defining the POSIX namespace
+		 * for the filename here which can mean that the file will be
+		 * invisible when in Windows NT/2k! )-: (AIA) */
+	position += 0x42;
+	for (count = 0; count < length; count++) {
+		NTFS_PUTU16(position + 2 * count, filename[count]);
+	}
+	error = ntfs_create_attr(ino, ino->vol->at_file_name, 0, data, size,
+				 &fn);
+	if (!error)
+		error = ntfs_dir_add(dir, ino, fn);
+	ntfs_free(data);
+	return error;
+}
+
+int add_security(ntfs_inode* ino, ntfs_inode* dir)
+{
+	int error;
+	char *buf;
+	int size;
+	ntfs_attribute* attr;
+	ntfs_io io;
+	ntfs_attribute *se;
+
+	attr = ntfs_find_attr(dir, ino->vol->at_security_descriptor, 0);
+	if (!attr)
+		return -EOPNOTSUPP; /* Need security in directory. */
+	size = attr->size;
+	if (size > 512)
+		return -EOPNOTSUPP;
+	buf = ntfs_malloc(size);
+	if (!buf)
+		return -ENOMEM;
+	io.fn_get = ntfs_get;
+	io.fn_put = ntfs_put;
+	io.param = buf;
+	io.size = size;
+	error = ntfs_read_attr(dir, ino->vol->at_security_descriptor, 0, 0,&io);
+	if (!error && io.size != size)
+		ntfs_error("wrong size in add_security\n");
+	if (error) {
+		ntfs_free(buf);
+		return error;
+	}
+	/* FIXME: Consider ACL inheritance. */
+	error = ntfs_create_attr(ino, ino->vol->at_security_descriptor,
+				 0, buf, size, &se);
+	ntfs_free(buf);
+	return error;
+}
+
+static int add_data(ntfs_inode* ino, unsigned char *data, int length)
+{
+	ntfs_attribute *da;
+	
+	return ntfs_create_attr(ino, ino->vol->at_data, 0, data, length, &da);
+}
+
+/*
+ * We _could_ use 'dir' to help optimise inode allocation.
+ *
+ * FIXME: Need to undo what we do in ntfs_alloc_mft_record if we get an error
+ * further on in ntfs_alloc_inode. Either fold the two functions to allow
+ * proper undo or just deallocate the record from the mft bitmap. (AIA)
+ */
+int ntfs_alloc_inode(ntfs_inode *dir, ntfs_inode *result, const char *filename,
+		int namelen, ntfs_u32 flags)
+{
+	ntfs_volume *vol = dir->vol;
+	int err;
+	ntfs_u8 buffer[2];
+	ntfs_io io;
+
+	err = ntfs_alloc_mft_record(vol, &(result->i_number));
+	if (err) {
+		if (err == -ENOSPC)
+			ntfs_error("%s(): No free inodes.\n", __FUNCTION__);
+		return err;
+	}
+	/* Get the sequence number. */
+	io.fn_put = ntfs_put;
+	io.fn_get = ntfs_get;
+	io.param = buffer;
+	io.size = 2;
+	err = ntfs_read_attr(vol->mft_ino, vol->at_data, 0, 
+			((__s64)result->i_number << vol->mft_record_size_bits)
+			+ 0x10, &io);
+	// FIXME: We are leaving the MFT in inconsistent state! (AIA)
+	if (err)
+		return err;
+	/* Increment the sequence number skipping zero. */
+	result->sequence_number = (NTFS_GETU16(buffer) + 1) & 0xffff;
+	if (!result->sequence_number)
+		result->sequence_number++;
+	result->vol = vol;
+	result->attr_count = 0;
+	result->attrs = 0;
+	result->record_count = 1;
+	result->records = ntfs_calloc(8 * sizeof(int));
+	if (!result->records)
+		goto mem_err_out;
+	result->records[0] = result->i_number;
+	result->attr = ntfs_calloc(vol->mft_record_size);
+	if (!result->attr) {
+		ntfs_free(result->records);
+		result->records = NULL;
+		goto mem_err_out;
+	}
+	ntfs_fill_mft_header(result->attr, vol->mft_record_size,
+			result->sequence_number, 1, 1);
+	err = add_standard_information(result);
+	if (!err)
+		err = add_filename(result, dir, filename, namelen, flags);
+	if (!err)
+		err = add_security(result, dir);
+	// FIXME: We are leaving the MFT in inconsistent state on error! (AIA)
+	return err;
+mem_err_out:
+	// FIXME: We are leaving the MFT in inconsistent state! (AIA)
+	result->record_count = 0;
+	result->attr = NULL;
+	return -ENOMEM;
+}
+
+int ntfs_alloc_file(ntfs_inode *dir, ntfs_inode *result, char *filename,
+		int namelen)
+{
+	int err;
+
+	err = ntfs_alloc_inode(dir, result, filename, namelen, 0);
+	if (!err)
+		err = add_data(result, 0, 0);
+	return err;
+}
+
diff --git a/fs/ntfs/inode.h b/fs/ntfs/inode.h
new file mode 100644
index 00000000000000..96fcb824fbf5e2
--- /dev/null
+++ b/fs/ntfs/inode.h
@@ -0,0 +1,58 @@
+/*
+ * inode.h -  Header file for inode.c
+ *
+ * Copyright (C) 1997 Régis Duchesne
+ * Copyright (C) 1998 Martin von Löwis
+ * Copyright (c) 2001 Anton Altparmakov (AIA)
+ */
+
+ntfs_attribute *ntfs_find_attr(ntfs_inode *ino, int type, char *name);
+
+int ntfs_read_attr(ntfs_inode *ino, int type, char *name, __s64 offset,
+		ntfs_io *buf);
+
+int ntfs_write_attr(ntfs_inode *ino, int type, char *name, __s64 offset,
+		ntfs_io *buf);
+
+int ntfs_init_inode(ntfs_inode *ino, ntfs_volume *vol, int inum);
+
+void ntfs_clear_inode(ntfs_inode *ino);
+
+int ntfs_check_mft_record(ntfs_volume *vol, char *record);
+
+int ntfs_alloc_inode(ntfs_inode *dir, ntfs_inode *result, const char *filename,
+		int namelen, ntfs_u32);
+
+int ntfs_alloc_file(ntfs_inode *dir, ntfs_inode *result, char *filename,
+		int namelen);
+
+int ntfs_update_inode(ntfs_inode *ino);
+
+int ntfs_vcn_to_lcn(ntfs_inode *ino, int vcn);
+
+int ntfs_readwrite_attr(ntfs_inode *ino, ntfs_attribute *attr, __s64 offset,
+		ntfs_io *dest);
+
+int ntfs_allocate_attr_number(ntfs_inode *ino, int *result);
+
+int ntfs_decompress_run(unsigned char **data, int *length,
+		ntfs_cluster_t *cluster, int *ctype);
+
+void ntfs_decompress(unsigned char *dest, unsigned char *src, ntfs_size_t l);
+
+int splice_runlists(ntfs_runlist **rl1, int *r1len, const ntfs_runlist *rl2,
+		int r2len);
+
+/*
+ * NOTE: Neither of the ntfs_*_bit functions are atomic! But we don't need
+ * them atomic at present as we never operate on shared/cached bitmaps.
+ */
+static __inline__ int ntfs_test_and_set_bit(unsigned char *byte, const int bit)
+{
+	unsigned char *ptr = byte + (bit >> 3);
+	int b = 1 << (bit & 7);
+	int oldbit = *ptr & b ? 1 : 0;
+	*ptr |= b;
+	return oldbit;
+}
+
diff --git a/fs/ntfs/macros.h b/fs/ntfs/macros.h
new file mode 100644
index 00000000000000..708730950db164
--- /dev/null
+++ b/fs/ntfs/macros.h
@@ -0,0 +1,43 @@
+/*
+ * macros.h
+ *
+ * Copyright (C) 1995 Martin von Löwis
+ * Copyright (C) 1996 Régis Duchesne
+ * Copyright (c) 2001 Anton Altaparmakov
+ */
+#include <linux/ntfs_fs_i.h>
+#include <linux/fs.h>
+#include <asm/page.h>
+
+#define NTFS_FD(vol)		((vol)->u.fd)
+
+#define NTFS_SB(vol)		((struct super_block*)(vol)->sb)
+#define NTFS_SB2VOL(sb)         (&(sb)->u.ntfs_sb)
+#define NTFS_INO2VOL(ino)	(&((ino)->i_sb->u.ntfs_sb))
+#define NTFS_LINO2NINO(ino)     ((struct ntfs_inode_info*)(&((ino)->u.ntfs_i)))
+static inline struct inode *VFS_I(struct ntfs_inode_info *ntfs_ino)
+{
+	struct inode *i = (struct inode*)((char*)ntfs_ino -
+			((char*)&(((struct inode*)NULL)->u.ntfs_i) -
+			(char*)NULL));
+#ifdef DEBUG
+	if ((char*)NTFS_LINO2NINO(i) != (char*)ntfs_ino)
+		BUG();
+#endif
+	return i;
+}
+
+#define IS_MAGIC(a,b)		(*(int*)(a) == *(int*)(b))
+#define IS_MFT_RECORD(a)	IS_MAGIC((a),"FILE")
+#define IS_INDEX_RECORD(a)	IS_MAGIC((a),"INDX")
+
+/* 'NTFS' in little endian */
+#define NTFS_SUPER_MAGIC	0x5346544E
+
+#define NTFS_AFLAG_RO           1
+#define NTFS_AFLAG_HIDDEN       2
+#define NTFS_AFLAG_SYSTEM       4
+#define NTFS_AFLAG_ARCHIVE      20
+#define NTFS_AFLAG_COMPRESSED   0x800
+#define NTFS_AFLAG_DIR          0x10000000
+
diff --git a/fs/ntfs/ntfsendian.h b/fs/ntfs/ntfsendian.h
new file mode 100644
index 00000000000000..1ec6946e8a1858
--- /dev/null
+++ b/fs/ntfs/ntfsendian.h
@@ -0,0 +1,60 @@
+/*
+ * ntfsendian.h
+ *
+ * Copyright (C) 1998, 1999 Martin von Löwis
+ * Copyright (C) 1998 Joseph Malicki
+ * Copyright (C) 1999 Werner Seiler
+ * Copyright (C) 2001 Anton Altaparmakov (AIA)
+ */
+#include <asm/byteorder.h>
+
+#define CPU_TO_LE16(a) __cpu_to_le16(a)
+#define CPU_TO_LE32(a) __cpu_to_le32(a)
+#define CPU_TO_LE64(a) __cpu_to_le64(a)
+
+#define LE16_TO_CPU(a) __cpu_to_le16(a)
+#define LE32_TO_CPU(a) __cpu_to_le32(a)
+#define LE64_TO_CPU(a) __cpu_to_le64(a)
+
+#define NTFS_GETU8(p)      (*(ntfs_u8*)(p))
+#define NTFS_GETU16(p)     ((ntfs_u16)LE16_TO_CPU(*(ntfs_u16*)(p)))
+#define NTFS_GETU24(p)     ((ntfs_u32)NTFS_GETU16(p) | \
+			   ((ntfs_u32)NTFS_GETU8(((char*)(p)) + 2) << 16))
+#define NTFS_GETU32(p)     ((ntfs_u32)LE32_TO_CPU(*(ntfs_u32*)(p)))
+#define NTFS_GETU40(p)     ((ntfs_u64)NTFS_GETU32(p) | \
+			   (((ntfs_u64)NTFS_GETU8(((char*)(p)) + 4)) << 32))
+#define NTFS_GETU48(p)     ((ntfs_u64)NTFS_GETU32(p) | \
+			   (((ntfs_u64)NTFS_GETU16(((char*)(p)) + 4)) << 32))
+#define NTFS_GETU56(p)     ((ntfs_u64)NTFS_GETU32(p) | \
+			   (((ntfs_u64)NTFS_GETU24(((char*)(p)) + 4)) << 32))
+#define NTFS_GETU64(p)     ((ntfs_u64)LE64_TO_CPU(*(ntfs_u64*)(p)))
+ 
+ /* Macros writing unsigned integers */
+#define NTFS_PUTU8(p,v)      ((*(ntfs_u8*)(p)) = (v))
+#define NTFS_PUTU16(p,v)     ((*(ntfs_u16*)(p)) = CPU_TO_LE16(v))
+#define NTFS_PUTU24(p,v)     NTFS_PUTU16(p, (v) & 0xFFFF);\
+                             NTFS_PUTU8(((char*)(p)) + 2, (v) >> 16)
+#define NTFS_PUTU32(p,v)     ((*(ntfs_u32*)(p)) = CPU_TO_LE32(v))
+#define NTFS_PUTU64(p,v)     ((*(ntfs_u64*)(p)) = CPU_TO_LE64(v))
+ 
+ /* Macros reading signed integers */
+#define NTFS_GETS8(p)        ((*(ntfs_s8*)(p)))
+#define NTFS_GETS16(p)       ((ntfs_s16)LE16_TO_CPU(*(short*)(p)))
+#define NTFS_GETS24(p)       (NTFS_GETU24(p) < 0x800000 ? \
+					(int)NTFS_GETU24(p) : \
+					(int)(NTFS_GETU24(p) - 0x1000000))
+#define NTFS_GETS32(p)       ((ntfs_s32)LE32_TO_CPU(*(int*)(p)))
+#define NTFS_GETS40(p)       (((ntfs_s64)NTFS_GETU32(p)) | \
+			     (((ntfs_s64)NTFS_GETS8(((char*)(p)) + 4)) << 32))
+#define NTFS_GETS48(p)       (((ntfs_s64)NTFS_GETU32(p)) | \
+			     (((ntfs_s64)NTFS_GETS16(((char*)(p)) + 4)) << 32))
+#define NTFS_GETS56(p)       (((ntfs_s64)NTFS_GETU32(p)) | \
+			     (((ntfs_s64)NTFS_GETS24(((char*)(p)) + 4)) << 32))
+#define NTFS_GETS64(p)	     ((ntfs_s64)NTFS_GETU64(p))
+ 
+#define NTFS_PUTS8(p,v)      NTFS_PUTU8(p,v)
+#define NTFS_PUTS16(p,v)     NTFS_PUTU16(p,v)
+#define NTFS_PUTS24(p,v)     NTFS_PUTU24(p,v)
+#define NTFS_PUTS32(p,v)     NTFS_PUTU32(p,v)
+#define NTFS_PUTS64(p,v)     NTFS_PUTU64(p,v)
+
diff --git a/fs/ntfs/ntfstypes.h b/fs/ntfs/ntfstypes.h
new file mode 100644
index 00000000000000..efd527d81e7a1c
--- /dev/null
+++ b/fs/ntfs/ntfstypes.h
@@ -0,0 +1,84 @@
+/*
+ * ntfstypes.h - This file defines four things:
+ * - Generic platform independent fixed-size types (e.g. ntfs_u32).
+ * - Specific fixed-size types (e.g. ntfs_offset_t).
+ * - Macros that read and write those types from and to byte arrays.
+ * - Types derived from OS specific ones.
+ *
+ * Copyright (C) 1996, 1998, 1999 Martin von Löwis
+ * Copyright (C) 2001 Anton Altaparmakov (AIA)
+ */
+#include <linux/fs.h>
+#include "ntfsendian.h"
+#include <asm/types.h>
+
+/* Integral types */
+#ifndef NTFS_INTEGRAL_TYPES
+#define NTFS_INTEGRAL_TYPES
+typedef u8  ntfs_u8;
+typedef u16 ntfs_u16;
+typedef u32 ntfs_u32;
+typedef u64 ntfs_u64;
+typedef s8  ntfs_s8;
+typedef s16 ntfs_s16;
+typedef s32 ntfs_s32;
+typedef s64 ntfs_s64;
+#endif
+
+/* Unicode character type */
+#ifndef NTFS_WCHAR_T
+#define NTFS_WCHAR_T
+typedef u16 ntfs_wchar_t;
+#endif
+/* File offset */
+#ifndef NTFS_OFFSET_T
+#define NTFS_OFFSET_T
+typedef s64 ntfs_offset_t;
+#endif
+/* UTC */
+#ifndef NTFS_TIME64_T
+#define NTFS_TIME64_T
+typedef u64 ntfs_time64_t;
+#endif
+/*
+ * This is really signed long long. So we support only volumes up to 2Tb. This
+ * is ok as Win2k also only uses 32-bits to store clusters.
+ * Whatever you do keep this a SIGNED value or a lot of NTFS users with
+ * corrupted filesystems will lynch you! It causes massive fs corruption when
+ * unsigned due to the nature of many checks relying on being performed on
+ * signed quantities. (AIA)
+ */
+#ifndef NTFS_CLUSTER_T
+#define NTFS_CLUSTER_T
+typedef s32 ntfs_cluster_t;
+#endif
+
+/* Architecture independent macros. */
+
+/* PUTU32 would not clear all bytes. */
+#define NTFS_PUTINUM(p,i)    NTFS_PUTU64(p, i->i_number); \
+                             NTFS_PUTU16(((char*)p) + 6, i->sequence_number)
+
+/* System dependent types. */
+#include <asm/posix_types.h>
+#ifndef NTMODE_T
+#define NTMODE_T
+typedef __kernel_mode_t ntmode_t;
+#endif
+#ifndef NTFS_UID_T
+#define NTFS_UID_T
+typedef uid_t ntfs_uid_t;
+#endif
+#ifndef NTFS_GID_T
+#define NTFS_GID_T
+typedef gid_t ntfs_gid_t;
+#endif
+#ifndef NTFS_SIZE_T
+#define NTFS_SIZE_T
+typedef __kernel_size_t ntfs_size_t;
+#endif
+#ifndef NTFS_TIME_T
+#define NTFS_TIME_T
+typedef __kernel_time_t ntfs_time_t;
+#endif
+
diff --git a/fs/ntfs/struct.h b/fs/ntfs/struct.h
new file mode 100644
index 00000000000000..0cb909b037e4a3
--- /dev/null
+++ b/fs/ntfs/struct.h
@@ -0,0 +1,69 @@
+/*
+ * struct.h - Structure definitions
+ *
+ * Copyright (C) 1997 Régis Duchesne
+ * Copyright (C) 2000-2001 Anton Altaparmakov (AIA)
+ */
+#include <linux/ntfs_fs.h>
+
+/* Necessary forward definition. */
+struct ntfs_inode;
+
+/* Which files should be returned from a director listing. */
+#define ngt_dos   1	/* only short names, no system files */
+#define ngt_nt    2	/* only long names, all-uppercase becomes 
+			 * all-lowercase, no system files */
+#define ngt_posix 3	/* all names except system files */
+#define ngt_full  4	/* all entries */
+
+typedef struct ntfs_sb_info ntfs_volume;
+
+typedef struct {
+	ntfs_cluster_t lcn;
+	ntfs_cluster_t len;
+} ntfs_runlist;
+
+typedef struct ntfs_attribute {
+	int type;
+	ntfs_u16 *name;
+	int namelen;
+	int attrno;
+	__s64 size, allocated, initialized, compsize;
+	ATTR_FLAGS flags;
+	__u8 resident, indexed;
+	int cengine;
+	union {
+		void *data;             /* if resident */
+		struct {
+			ntfs_runlist *runlist;
+			unsigned long len;
+		} r;
+	} d;
+} ntfs_attribute;
+
+typedef struct ntfs_inode_info ntfs_inode;
+
+/* Structure to define IO to user buffer. do_read means that the destination
+ * has to be written using fn_put, do_write means that the destination has to
+ * read using fn_get. So, do_read is from a user's point of view, while put and
+ * get are from the driver's point of view. The first argument is always the
+ * destination of the IO. */
+typedef struct ntfs_io{
+	int do_read;
+	void (*fn_put)(struct ntfs_io *dest, void *buf, ntfs_size_t);
+	void (*fn_get)(void *buf, struct ntfs_io *src, ntfs_size_t len);
+	void *param;
+	unsigned long size;
+} ntfs_io;
+
+#if 0
+typedef struct {
+	ntfs_volume *vol;
+	ntfs_inode *ino;
+	int type;
+	char *name;
+	int mftno;
+	int start_vcn;
+} ntfs_attrlist_item;
+#endif
+
diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c
new file mode 100644
index 00000000000000..3dc9013b7822f7
--- /dev/null
+++ b/fs/ntfs/super.c
@@ -0,0 +1,1416 @@
+/*
+ * super.c
+ *
+ * Copyright (C) 1995-1997, 1999 Martin von Löwis
+ * Copyright (C) 1996-1997 Régis Duchesne
+ * Copyright (C) 1999 Steve Dodd
+ * Copyright (C) 2000-2001 Anton Altparmakov (AIA)
+ */
+
+#include <linux/ntfs_fs.h>
+#include <linux/errno.h>
+#include <linux/bitops.h>
+#include <linux/module.h>
+#include "ntfstypes.h"
+#include "struct.h"
+#include "super.h"
+#include "macros.h"
+#include "inode.h"
+#include "support.h"
+#include "util.h"
+#include <linux/smp_lock.h>
+
+/* All important structures in NTFS use 2 consistency checks:
+ * . a magic structure identifier (FILE, INDX, RSTR, RCRD...)
+ * . a fixup technique : the last word of each sector (called a fixup) of a
+ *   structure's record should end with the word at offset <n> of the first
+ *   sector, and if it is the case, must be replaced with the words following
+ *   <n>. The value of <n> and the number of fixups is taken from the fields
+ *   at the offsets 4 and 6. Note that the sector size is defined as
+ *   NTFS_SECTOR_SIZE and not as the hardware sector size (this is concordant
+ *   with what the Windows NTFS driver does).
+ *
+ * This function performs these 2 checks, and _fails_ if:
+ * . the input size is invalid
+ * . the fixup header is invalid
+ * . the size does not match the number of sectors
+ * . the magic identifier is wrong
+ * . a fixup is invalid
+ */
+int ntfs_fixup_record(char *record, char *magic, int size)
+{
+	int start, count, offset;
+	ntfs_u16 fixup;
+
+	if (!IS_MAGIC(record, magic))
+		return 0;
+	start = NTFS_GETU16(record + 4);
+	count = NTFS_GETU16(record + 6) - 1;
+	if (size & (NTFS_SECTOR_SIZE - 1) || start & 1 ||
+			start + count * 2 > size || size >> 9 != count) {
+		if (size <= 0)
+			printk(KERN_ERR "NTFS: BUG: ntfs_fixup_record() got "
+					"zero size! Please report this to "
+					"linux-ntfs-dev@lists.sf.net\n");
+		return 0;
+	}
+	fixup = NTFS_GETU16(record + start);
+	start += 2;
+	offset = NTFS_SECTOR_SIZE - 2;
+	while (count--) {
+		if (NTFS_GETU16(record + offset) != fixup)
+			return 0;
+		NTFS_PUTU16(record + offset, NTFS_GETU16(record + start));
+		start += 2;
+		offset += NTFS_SECTOR_SIZE;
+	}
+	return 1;
+}
+
+/*
+ * Get vital informations about the ntfs partition from the boot sector.
+ * Return 0 on success or -1 on error.
+ */
+int ntfs_init_volume(ntfs_volume *vol, char *boot)
+{
+	int sectors_per_cluster_bits;
+	__s64 ll;
+	ntfs_cluster_t mft_zone_size, tc;
+
+	/* System defined default values, in case we don't load $AttrDef. */
+	vol->at_standard_information = 0x10;
+	vol->at_attribute_list = 0x20;
+	vol->at_file_name = 0x30;
+	vol->at_volume_version = 0x40;
+	vol->at_security_descriptor = 0x50;
+	vol->at_volume_name = 0x60;
+	vol->at_volume_information = 0x70;
+	vol->at_data = 0x80;
+	vol->at_index_root = 0x90;
+	vol->at_index_allocation = 0xA0;
+	vol->at_bitmap = 0xB0;
+	vol->at_symlink = 0xC0;
+	/* Sector size. */
+	vol->sector_size = NTFS_GETU16(boot + 0xB);
+	ntfs_debug(DEBUG_FILE3, "ntfs_init_volume: vol->sector_size = 0x%x\n",
+				vol->sector_size);
+	ntfs_debug(DEBUG_FILE3, "ntfs_init_volume: sectors_per_cluster = "
+				"0x%x\n", NTFS_GETU8(boot + 0xD));
+	sectors_per_cluster_bits = ffs(NTFS_GETU8(boot + 0xD)) - 1;
+	ntfs_debug(DEBUG_FILE3, "ntfs_init_volume: sectors_per_cluster_bits "
+				"= 0x%x\n", sectors_per_cluster_bits); 
+	vol->mft_clusters_per_record = NTFS_GETS8(boot + 0x40);
+	ntfs_debug(DEBUG_FILE3, "ntfs_init_volume: vol->mft_clusters_per_record"
+				" = 0x%x\n", vol->mft_clusters_per_record); 
+	vol->index_clusters_per_record = NTFS_GETS8(boot + 0x44);
+	ntfs_debug(DEBUG_FILE3, "ntfs_init_volume: "
+				"vol->index_clusters_per_record = 0x%x\n",
+				vol->index_clusters_per_record); 
+	vol->cluster_size = vol->sector_size << sectors_per_cluster_bits;
+	vol->cluster_size_bits = ffs(vol->cluster_size) - 1;
+	ntfs_debug(DEBUG_FILE3, "ntfs_init_volume: vol->cluster_size = 0x%x\n",
+				vol->cluster_size); 
+	ntfs_debug(DEBUG_FILE3, "ntfs_init_volume: vol->cluster_size_bits = "
+				"0x%x\n", vol->cluster_size_bits); 
+	if (vol->mft_clusters_per_record > 0)
+		vol->mft_record_size = vol->cluster_size <<
+				(ffs(vol->mft_clusters_per_record) - 1);
+	else
+		/*
+		 * When mft_record_size < cluster_size, mft_clusters_per_record
+		 * = -log2(mft_record_size) bytes. mft_record_size normaly is
+		 * 1024 bytes, which is encoded as 0xF6 (-10 in decimal).
+		 */
+		vol->mft_record_size = 1 << -vol->mft_clusters_per_record;
+	vol->mft_record_size_bits = ffs(vol->mft_record_size) - 1;
+	ntfs_debug(DEBUG_FILE3, "ntfs_init_volume: vol->mft_record_size = 0x%x"
+				"\n", vol->mft_record_size); 
+	ntfs_debug(DEBUG_FILE3, "ntfs_init_volume: vol->mft_record_size_bits = "
+				"0x%x\n", vol->mft_record_size_bits); 
+	if (vol->index_clusters_per_record > 0)
+		vol->index_record_size = vol->cluster_size <<
+				(ffs(vol->index_clusters_per_record) - 1);
+	else
+		/*
+		 * When index_record_size < cluster_size,
+		 * index_clusters_per_record = -log2(index_record_size) bytes.
+		 * index_record_size normaly equals 4096 bytes, which is
+		 * encoded as 0xF4 (-12 in decimal).
+		 */
+		vol->index_record_size = 1 << -vol->index_clusters_per_record;
+	vol->index_record_size_bits = ffs(vol->index_record_size) - 1;
+	ntfs_debug(DEBUG_FILE3, "ntfs_init_volume: vol->index_record_size = "
+				"0x%x\n", vol->index_record_size);
+	ntfs_debug(DEBUG_FILE3, "ntfs_init_volume: vol->index_record_size_bits "
+				"= 0x%x\n", vol->index_record_size_bits);
+	/*
+	 * Get the size of the volume in clusters (ofs 0x28 is nr_sectors) and
+	 * check for 64-bit-ness. Windows currently only uses 32 bits to save
+	 * the clusters so we do the same as it is much faster on 32-bit CPUs.
+	 */
+	ll = NTFS_GETS64(boot + 0x28) >> sectors_per_cluster_bits;
+	if (ll >= (__s64)1 << 31) {
+		ntfs_error("Cannot handle 64-bit clusters. Please inform "
+				"linux-ntfs-dev@lists.sf.net that you got this "
+				"error.\n");
+		return -1;
+	}
+	vol->nr_clusters = (ntfs_cluster_t)ll;
+	ntfs_debug(DEBUG_FILE3, "ntfs_init_volume: vol->nr_clusters = 0x%x\n",
+			vol->nr_clusters);
+	vol->mft_lcn = (ntfs_cluster_t)NTFS_GETS64(boot + 0x30);
+	vol->mft_mirr_lcn = (ntfs_cluster_t)NTFS_GETS64(boot + 0x38);
+	/* Determine MFT zone size. */
+	mft_zone_size = vol->nr_clusters;
+	switch (vol->mft_zone_multiplier) {  /* % of volume size in clusters */
+	case 4:
+		mft_zone_size >>= 1;			/* 50%   */
+		break;
+	case 3:
+		mft_zone_size = mft_zone_size * 3 >> 3;	/* 37.5% */
+		break;
+	case 2:
+		mft_zone_size >>= 2;			/* 25%   */
+		break;
+	/* case 1: */
+	default:
+		mft_zone_size >>= 3;			/* 12.5% */
+		break;
+	}
+	/* Setup mft zone. */
+	vol->mft_zone_start = vol->mft_zone_pos = vol->mft_lcn;
+	ntfs_debug(DEBUG_FILE3, "ntfs_init_volume: vol->mft_zone_pos = %x\n",
+			vol->mft_zone_pos);
+	/*
+	 * Calculate the mft_lcn for an unmodified NTFS volume (see mkntfs
+	 * source) and if the actual mft_lcn is in the expected place or even
+	 * further to the front of the volume, extend the mft_zone to cover the
+	 * beginning of the volume as well. This is in order to protect the
+	 * area reserved for the mft bitmap as well within the mft_zone itself.
+	 * On non-standard volumes we don't protect it as well as the overhead
+	 * would be higher than the speed increase we would get by doing it.
+	 */
+	tc = (8192 + 2 * vol->cluster_size - 1) / vol->cluster_size;
+	if (tc * vol->cluster_size < 16 * 1024)
+		tc = (16 * 1024 + vol->cluster_size - 1) / vol->cluster_size;
+	if (vol->mft_zone_start <= tc)
+		vol->mft_zone_start = (ntfs_cluster_t)0;
+	ntfs_debug(DEBUG_FILE3, "ntfs_init_volume: vol->mft_zone_start = %x\n",
+			vol->mft_zone_start);
+	/*
+	 * Need to cap the mft zone on non-standard volumes so that it does
+	 * not point outside the boundaries of the volume, we do this by
+	 * halving the zone size until we are inside the volume.
+	 */
+	vol->mft_zone_end = vol->mft_lcn + mft_zone_size;
+	while (vol->mft_zone_end >= vol->nr_clusters) {
+		mft_zone_size >>= 1;
+		vol->mft_zone_end = vol->mft_lcn + mft_zone_size;
+	}
+	ntfs_debug(DEBUG_FILE3, "ntfs_init_volume: vol->mft_zone_end = %x\n",
+			vol->mft_zone_end);
+	/*
+	 * Set the current position within each data zone to the start of the
+	 * respective zone.
+	 */
+	vol->data1_zone_pos = vol->mft_zone_end;
+	ntfs_debug(DEBUG_FILE3, "ntfs_init_volume: vol->data1_zone_pos = %x\n",
+			vol->data1_zone_pos);
+	vol->data2_zone_pos = (ntfs_cluster_t)0;
+	ntfs_debug(DEBUG_FILE3, "ntfs_init_volume: vol->data2_zone_pos = %x\n",
+			vol->data2_zone_pos);
+	/* Set the mft data allocation position to mft record 24. */
+	vol->mft_data_pos = 24UL;
+	/* This will be initialized later. */
+	vol->upcase = 0;
+	vol->upcase_length = 0;
+	vol->mft_ino = 0;
+	return 0;
+}
+
+static void ntfs_init_upcase(ntfs_inode *upcase)
+{
+	ntfs_io io;
+#define UPCASE_LENGTH  256
+	upcase->vol->upcase = ntfs_malloc(UPCASE_LENGTH << 1);
+	if (!upcase->vol->upcase)
+		return;
+	io.fn_put = ntfs_put;
+	io.fn_get = 0;
+	io.param = (char*)upcase->vol->upcase;
+	io.size = UPCASE_LENGTH << 1;
+	ntfs_read_attr(upcase, upcase->vol->at_data, 0, 0, &io);
+	upcase->vol->upcase_length = io.size >> 1;
+}
+
+static int process_attrdef(ntfs_inode* attrdef, ntfs_u8* def)
+{
+	int type = NTFS_GETU32(def+0x80);
+	int check_type = 0;
+	ntfs_volume *vol = attrdef->vol;
+	ntfs_u16* name = (ntfs_u16*)def;
+
+	if (!type) {
+		ntfs_debug(DEBUG_OTHER, "process_atrdef: finished processing "
+							"and returning 1\n");
+		return 1;
+	}
+	if (ntfs_ua_strncmp(name, "$STANDARD_INFORMATION", 64) == 0) {
+		vol->at_standard_information = type;
+		check_type = 0x10;
+	} else if (ntfs_ua_strncmp(name, "$ATTRIBUTE_LIST", 64) == 0) {
+		vol->at_attribute_list = type;
+		check_type = 0x20;
+	} else if (ntfs_ua_strncmp(name, "$FILE_NAME", 64) == 0) {
+		vol->at_file_name = type;
+		check_type = 0x30;
+	} else if (ntfs_ua_strncmp(name, "$VOLUME_VERSION", 64) == 0) {
+		vol->at_volume_version = type;
+		check_type = 0x40;
+	} else if (ntfs_ua_strncmp(name, "$SECURITY_DESCRIPTOR", 64) == 0) {
+		vol->at_security_descriptor = type;
+		check_type = 0x50;
+	} else if (ntfs_ua_strncmp(name, "$VOLUME_NAME", 64) == 0) {
+		vol->at_volume_name = type;
+		check_type = 0x60;
+	} else if (ntfs_ua_strncmp(name, "$VOLUME_INFORMATION", 64) == 0) {
+		vol->at_volume_information = type;
+		check_type = 0x70;
+	} else if (ntfs_ua_strncmp(name, "$DATA", 64) == 0) {
+		vol->at_data = type;
+		check_type = 0x80;
+	} else if (ntfs_ua_strncmp(name, "$INDEX_ROOT", 64) == 0) {
+		vol->at_index_root = type;
+		check_type = 0x90;
+	} else if (ntfs_ua_strncmp(name, "$INDEX_ALLOCATION", 64) == 0) {
+		vol->at_index_allocation = type;
+		check_type = 0xA0;
+	} else if (ntfs_ua_strncmp(name, "$BITMAP", 64) == 0) {
+		vol->at_bitmap = type;
+		check_type = 0xB0;
+	} else if (ntfs_ua_strncmp(name, "$SYMBOLIC_LINK", 64) == 0 ||
+		 ntfs_ua_strncmp(name, "$REPARSE_POINT", 64) == 0) {
+		vol->at_symlink = type;
+		check_type = 0xC0;
+	}
+	if (check_type && check_type != type) {
+		ntfs_error("process_attrdef: unexpected type 0x%x for 0x%x\n",
+							type, check_type);
+		return -EINVAL;
+	}
+	ntfs_debug(DEBUG_OTHER, "process_attrdef: found %s attribute of type "
+			"0x%x\n", check_type ? "known" : "unknown", type);
+	return 0;
+}
+
+int ntfs_init_attrdef(ntfs_inode* attrdef)
+{
+	ntfs_u8 *buf;
+	ntfs_io io;
+	__s64 offset;
+	unsigned i;
+	int error;
+	ntfs_attribute *data;
+
+	ntfs_debug(DEBUG_BSD, "Entered ntfs_init_attrdef()\n");
+	buf = ntfs_malloc(4050); /* 90*45 */
+	if (!buf)
+		return -ENOMEM;
+	io.fn_put = ntfs_put;
+	io.fn_get = ntfs_get;
+	io.do_read = 1;
+	offset = 0;
+	data = ntfs_find_attr(attrdef, attrdef->vol->at_data, 0);
+	ntfs_debug(DEBUG_BSD, "In ntfs_init_attrdef() after call to "
+			"ntfs_find_attr.\n");
+	if (!data) {
+		ntfs_free(buf);
+		return -EINVAL;
+	}
+	do {
+		io.param = buf;
+		io.size = 4050;
+		ntfs_debug(DEBUG_BSD, "In ntfs_init_attrdef() going to call "
+				"ntfs_readwrite_attr.\n");
+		error = ntfs_readwrite_attr(attrdef, data, offset, &io);
+		ntfs_debug(DEBUG_BSD, "In ntfs_init_attrdef() after call to "
+				"ntfs_readwrite_attr.\n");
+		for (i = 0; !error && i <= io.size - 0xA0; i += 0xA0) {
+			ntfs_debug(DEBUG_BSD, "In ntfs_init_attrdef() going "
+					"to call process_attrdef.\n");
+			error = process_attrdef(attrdef, buf + i);
+			ntfs_debug(DEBUG_BSD, "In ntfs_init_attrdef() after "
+					"call to process_attrdef.\n");
+		}
+		offset += 4096;
+	} while (!error && io.size);
+	ntfs_debug(DEBUG_BSD, "Exiting ntfs_init_attrdef()\n");
+	ntfs_free(buf);
+	return error == 1 ? 0 : error;
+}
+
+/* ntfs_get_version will determine the NTFS version of the volume and will
+ * return the version in a BCD format, with the MSB being the major version
+ * number and the LSB the minor one. Otherwise return <0 on error.
+ * Example: version 3.1 will be returned as 0x0301. This has the obvious
+ * limitation of not coping with version numbers above 0x80 but that shouldn't
+ * be a problem... */
+int ntfs_get_version(ntfs_inode* volume)
+{
+	ntfs_attribute *volinfo;
+
+	volinfo = ntfs_find_attr(volume, volume->vol->at_volume_information, 0);
+	if (!volinfo) 
+		return -EINVAL;
+	if (!volinfo->resident) {
+		ntfs_error("Volume information attribute is not resident!\n");
+		return -EINVAL;
+	}
+	return ((ntfs_u8*)volinfo->d.data)[8] << 8 | 
+	       ((ntfs_u8*)volinfo->d.data)[9];
+}
+
+int ntfs_load_special_files(ntfs_volume *vol)
+{
+	int error;
+	ntfs_inode upcase, attrdef, volume;
+
+	vol->mft_ino = (ntfs_inode*)ntfs_calloc(sizeof(ntfs_inode));
+	vol->mftmirr = (ntfs_inode*)ntfs_calloc(sizeof(ntfs_inode));
+	vol->bitmap = (ntfs_inode*)ntfs_calloc(sizeof(ntfs_inode));
+	vol->ino_flags = 4 | 2 | 1;
+	error = -ENOMEM;
+	ntfs_debug(DEBUG_BSD, "Going to load MFT\n");
+	if (!vol->mft_ino || (error = ntfs_init_inode(vol->mft_ino, vol,
+			FILE_Mft))) {
+		ntfs_error("Problem loading MFT\n");
+		return error;
+	}
+	ntfs_debug(DEBUG_BSD, "Going to load MIRR\n");
+	if ((error = ntfs_init_inode(vol->mftmirr, vol, FILE_MftMirr))) {
+		ntfs_error("Problem %d loading MFTMirr\n", error);
+		return error;
+	}
+	ntfs_debug(DEBUG_BSD, "Going to load BITMAP\n");
+	if ((error = ntfs_init_inode(vol->bitmap, vol, FILE_BitMap))) {
+		ntfs_error("Problem loading Bitmap\n");
+		return error;
+	}
+	ntfs_debug(DEBUG_BSD, "Going to load UPCASE\n");
+	error = ntfs_init_inode(&upcase, vol, FILE_UpCase);
+	if (error)
+		return error;
+	ntfs_init_upcase(&upcase);
+	ntfs_clear_inode(&upcase);
+	ntfs_debug(DEBUG_BSD, "Going to load ATTRDEF\n");
+	error = ntfs_init_inode(&attrdef, vol, FILE_AttrDef);
+	if (error)
+		return error;
+	error = ntfs_init_attrdef(&attrdef);
+	ntfs_clear_inode(&attrdef);
+	if (error)
+		return error;
+
+	/* Check for NTFS version and if Win2k version (ie. 3.0+) do not allow
+	 * write access since the driver write support is broken. */
+	ntfs_debug(DEBUG_BSD, "Going to load VOLUME\n");
+	error = ntfs_init_inode(&volume, vol, FILE_Volume);
+	if (error)
+		return error;
+	if ((error = ntfs_get_version(&volume)) >= 0x0300 &&
+	    !(NTFS_SB(vol)->s_flags & MS_RDONLY)) {
+		NTFS_SB(vol)->s_flags |= MS_RDONLY;
+		ntfs_error("Warning! NTFS volume version is Win2k+: Mounting "
+			   "read-only\n");
+	}
+	ntfs_clear_inode(&volume);
+	if (error < 0)
+		return error;
+	ntfs_debug(DEBUG_BSD, "NTFS volume is v%d.%d\n", error >> 8,
+			error & 0xff);
+	return 0;
+}
+
+int ntfs_release_volume(ntfs_volume *vol)
+{
+	if (((vol->ino_flags & 1) == 1) && vol->mft_ino) {
+		ntfs_clear_inode(vol->mft_ino);
+		ntfs_free(vol->mft_ino);
+		vol->mft_ino = 0;
+	}
+	if (((vol->ino_flags & 2) == 2) && vol->mftmirr) {
+		ntfs_clear_inode(vol->mftmirr);
+		ntfs_free(vol->mftmirr);
+		vol->mftmirr = 0;
+	}
+	if (((vol->ino_flags & 4) == 4) && vol->bitmap) {
+		ntfs_clear_inode(vol->bitmap);
+		ntfs_free(vol->bitmap);
+		vol->bitmap = 0;
+	}
+	ntfs_free(vol->mft);
+	ntfs_free(vol->upcase);
+	return 0;
+}
+
+/*
+ * Writes the volume size (units of clusters) into vol_size.
+ * Returns 0 if successful or error.
+ */
+int ntfs_get_volumesize(ntfs_volume *vol, ntfs_s64 *vol_size)
+{
+	ntfs_io io;
+	char *cluster0;
+
+	if (!vol_size)
+		return -EFAULT;
+	cluster0 = ntfs_malloc(vol->cluster_size);
+	if (!cluster0)
+		return -ENOMEM;
+	io.fn_put = ntfs_put;
+	io.fn_get = ntfs_get;
+	io.param = cluster0;
+	io.do_read = 1;
+	io.size = vol->cluster_size;
+	ntfs_getput_clusters(vol, 0, 0, &io);
+	*vol_size = NTFS_GETU64(cluster0 + 0x28) >>
+					(ffs(NTFS_GETU8(cluster0 + 0xD)) - 1);
+	ntfs_free(cluster0);
+	return 0;
+}
+
+static int nc[16]={4,3,3,2,3,2,2,1,3,2,2,1,2,1,1,0};
+
+int ntfs_get_free_cluster_count(ntfs_inode *bitmap)
+{
+	ntfs_io io;
+	int offset, error, clusters;
+	unsigned char *bits = ntfs_malloc(2048);
+	if (!bits)
+		return -ENOMEM;
+	offset = clusters = 0;
+	io.fn_put = ntfs_put;
+	io.fn_get = ntfs_get;
+	while (1) {
+		register int i;
+		io.param = bits;
+		io.size = 2048;
+		error = ntfs_read_attr(bitmap, bitmap->vol->at_data, 0, offset,
+									&io);
+		if (error || io.size == 0)
+			break;
+		/* I never thought I would do loop unrolling some day */
+		for (i = 0; i < io.size - 8; ) {
+			clusters+=nc[bits[i]>>4];clusters+=nc[bits[i++] & 0xF];
+			clusters+=nc[bits[i]>>4];clusters+=nc[bits[i++] & 0xF];
+			clusters+=nc[bits[i]>>4];clusters+=nc[bits[i++] & 0xF];
+			clusters+=nc[bits[i]>>4];clusters+=nc[bits[i++] & 0xF];
+			clusters+=nc[bits[i]>>4];clusters+=nc[bits[i++] & 0xF];
+			clusters+=nc[bits[i]>>4];clusters+=nc[bits[i++] & 0xF];
+			clusters+=nc[bits[i]>>4];clusters+=nc[bits[i++] & 0xF];
+			clusters+=nc[bits[i]>>4];clusters+=nc[bits[i++] & 0xF];
+		}
+		while (i < io.size) {
+			clusters += nc[bits[i] >> 4];
+			clusters += nc[bits[i++] & 0xF];
+		}
+		offset += io.size;
+	}
+	ntfs_free(bits);
+	return clusters;
+}
+
+/*
+ * Insert the fixups for the record. The number and location of the fixes
+ * is obtained from the record header but we double check with @rec_size and
+ * use that as the upper boundary, if necessary overwriting the count value in
+ * the record header.
+ *
+ * We return 0 on success or -1 if fixup header indicated the beginning of the
+ * update sequence array to be beyond the valid limit.
+ */
+int ntfs_insert_fixups(unsigned char *rec, int rec_size)
+{
+	int first;
+	int count;
+	int offset = -2;
+	ntfs_u16 fix;
+	
+	first = NTFS_GETU16(rec + 4);
+	count = (rec_size >> NTFS_SECTOR_BITS) + 1;
+	if (first + count * 2 > NTFS_SECTOR_SIZE - 2) {
+		printk(KERN_CRIT "NTFS: ntfs_insert_fixups() detected corrupt "
+				"NTFS record update sequence array position. - "
+				"Cannot hotfix.\n");
+		return -1;
+	}
+	if (count != NTFS_GETU16(rec + 6)) {
+		printk(KERN_ERR "NTFS: ntfs_insert_fixups() detected corrupt "
+				"NTFS record update sequence array size. - "
+				"Applying hotfix.\n");
+		NTFS_PUTU16(rec + 6, count);
+	}
+	fix = (NTFS_GETU16(rec + first) + 1) & 0xffff;
+	if (fix == 0xffff || !fix)
+		fix = 1;
+	NTFS_PUTU16(rec + first, fix);
+	count--;
+	while (count--) {
+		first += 2;
+		offset += NTFS_SECTOR_SIZE;
+		NTFS_PUTU16(rec + first, NTFS_GETU16(rec + offset));
+		NTFS_PUTU16(rec + offset, fix);
+	}
+	return 0;
+}
+
+/**
+ * ntfs_allocate_clusters - allocate logical clusters on an ntfs volume
+ * @vol:	volume on which to allocate clusters
+ * @location:	preferred location for first allocated cluster
+ * @count:	number of clusters to allocate
+ * @rl:		address of pointer in which to return the allocated run list
+ * @rl_len:	the number of elements returned in @*rl
+ *
+ * Allocate @*count clusters (LCNs), preferably beginning at @*location in the
+ * bitmap of the volume @vol. If @*location is -1, it does not matter where the
+ * clusters are. @rl is the address of a ntfs_runlist pointer which this
+ * function will allocate and fill with the runlist of the allocated clusters.
+ * It is the callers responsibility to ntfs_vfree() @*rl after she is finished
+ * with it. If the function was not successful, @*rl will be set to NULL.
+ * @*rl_len will contain the number of ntfs_runlist elements in @*rl or 0 if
+ * @*rl is NULL.
+ *
+ * Return 0 on success, or -errno on error. On success, @*location and @*count
+ * say what was really allocated. On -ENOSPC, @*location and @*count say what
+ * could have been allocated. If nothing could be allocated or a different
+ * error occured, @*location = -1 and @*count = 0.
+ *
+ * There are two data zones. First is the area between the end of the mft zone
+ * and the end of the volume, and second is the area between the start of the
+ * volume and the start of the mft zone. On unmodified/standard volumes, the
+ * second mft zone doesn't exist due to the mft zone being expanded to cover
+ * the start of volume in order to reserve space for the mft bitmap attribute.
+ *
+ * This is not the prettiest function but the complexity stems from the need of
+ * implementing the mft vs data zoned approach and from the fact that we have
+ * access to the lcn bitmap in portions of PAGE_SIZE bytes at a time, so we
+ * need to cope with crossing over boundaries of two pages. Further, the fact
+ * that the allocator allows for caller supplied hints as to the location of
+ * where allocation should begin and the fact that the allocator keeps track of
+ * where in the data zones the next natural allocation should occur, contribute
+ * to the complexity of the function. But it should all be worthwhile, because
+ * this allocator should: 1) be a full implementation of the MFT zone approach
+ * used by Windows, 2) cause reduction in fragmentation as much as possible,
+ * and 3) be speedy in allocations (the code is not optimized for speed, but
+ * the algorithm is, so further speed improvements are probably possible).
+ *
+ * FIXME: Really need finer-grained locking but this will do for the moment. I
+ * just want to kill all races and have a working allocator. When that is done,
+ * we can beautify... (AIA)
+ * 
+ * FIXME: We should be monitoring cluster allocation and increment the MFT zone
+ * size dynamically but this is something for the future. We will just cause
+ * heavier fragmentation by not doing it and I am not even sure Windows would
+ * grow the MFT zone dynamically, so might even be correct not doing this. The
+ * overhead in doing dynamic MFT zone expansion would be very large and unlikely
+ * worth the effort. (AIA)
+ *
+ * TODO: I have added in double the required zone position pointer wrap around
+ * logic which can be optimized to having only one of the two logic sets.
+ * However, having the double logic will work fine, but if we have only one of
+ * the sets and we get it wrong somewhere, then we get into trouble, so
+ * removing the duplicate logic requires _very_ careful consideration of _all_
+ * possible code paths. So at least for now, I am leaving the double logic -
+ * better safe than sorry... (AIA)
+ */
+int ntfs_allocate_clusters(ntfs_volume *vol, ntfs_cluster_t *location,
+		ntfs_cluster_t *count, ntfs_runlist **rl, int *rl_len,
+		const NTFS_CLUSTER_ALLOCATION_ZONES zone)
+{
+	ntfs_runlist *rl2 = NULL, *rlt;
+	ntfs_attribute *data;
+	ntfs_cluster_t buf_pos, zone_start, zone_end, mft_zone_size;
+	ntfs_cluster_t lcn, last_read_pos, prev_lcn = (ntfs_cluster_t)0;
+	ntfs_cluster_t initial_location, prev_run_len = (ntfs_cluster_t)0;
+	ntfs_cluster_t clusters = (ntfs_cluster_t)0;
+	unsigned char *buf, *byte, bit, search_zone, done_zones;
+	unsigned char pass, need_writeback;
+	int rlpos = 0, rlsize, buf_size, err = 0;
+	ntfs_io io;
+
+	ntfs_debug(DEBUG_OTHER, "%s(): Entering with *location = 0x%x, "
+			"*count = 0x%x, zone = %s_ZONE.\n", __FUNCTION__,
+			*location, *count, zone == DATA_ZONE ? "DATA" : "MFT");
+	buf = (char*)__get_free_page(GFP_NOFS);
+	if (!buf) {
+		ntfs_debug(DEBUG_OTHER, "%s(): Returning -ENOMEM.\n",
+				__FUNCTION__);
+		return -ENOMEM;
+	}
+	io.fn_put = ntfs_put;
+	io.fn_get = ntfs_get;
+	lock_kernel();
+	/* Get the $DATA attribute of $Bitmap. */
+	data = ntfs_find_attr(vol->bitmap, vol->at_data, 0);
+	if (!data) {
+		err = -EINVAL;
+		goto err_ret;
+	}
+	/*
+	 * If no specific location was requested, use the current data zone
+	 * position, otherwise use the requested location but make sure it lies
+	 * outside the mft zone. Also set done_zones to 0 (no zones done) and
+	 * pass depending on whether we are starting inside a zone (1) or
+	 * at the beginning of a zone (2). If requesting from the MFT_ZONE, then
+	 * we either start at the current position within the mft zone or at the
+	 * specified position and if the latter is out of bounds then we start
+	 * at the beginning of the MFT_ZONE.
+	 */
+	done_zones = 0;
+	pass = 1;
+	/*
+	 * zone_start and zone_end are the current search range. search_zone
+	 * is 1 for mft zone, 2 for data zone 1 (end of mft zone till end of
+	 * volume) and 4 for data zone 2 (start of volume till start of mft
+	 * zone).
+	 */
+	zone_start = *location;
+	if (zone_start < 0) {
+		if (zone == DATA_ZONE)
+			zone_start = vol->data1_zone_pos;
+		else
+			zone_start = vol->mft_zone_pos;
+		if (!zone_start)
+			/*
+			 * Zone starts at beginning of volume which means a
+			 * single pass is sufficient.
+			 */
+			pass = 2;
+	} else if (zone_start >= vol->mft_zone_start && zone_start <
+			vol->mft_zone_end && zone == DATA_ZONE) {
+		zone_start = vol->mft_zone_end;
+		pass = 2;
+	} else if ((zone_start < vol->mft_zone_start || zone_start >=
+			vol->mft_zone_end) && zone == MFT_ZONE) {
+		zone_start = vol->mft_lcn;
+		if (!vol->mft_zone_end)
+			zone_start = (ntfs_cluster_t)0;
+		pass = 2;
+	}
+	if (zone == DATA_ZONE) {
+		/* Skip searching the mft zone. */
+		done_zones |= 1;
+		if (zone_start >= vol->mft_zone_end) {
+			zone_end = vol->nr_clusters;
+			search_zone = 2;
+		} else {
+			zone_end = vol->mft_zone_start;
+			search_zone = 4;
+		}
+	} else /* if (zone == MFT_ZONE) */ {
+		zone_end = vol->mft_zone_end;
+		search_zone = 1;
+	}
+	/*
+	 * buf_pos is the current bit position inside the bitmap. We use
+	 * initial_location to determine whether or not to do a zone switch.
+	 */
+	buf_pos = initial_location = zone_start;
+	/* Loop until all clusters are allocated, i.e. clusters == 0. */
+	clusters = *count;
+	rlpos = rlsize = 0;
+	if (*count <= 0) {
+		ntfs_debug(DEBUG_OTHER, "%s(): *count <= 0, "
+				"returning -EINVAL.\n", __FUNCTION__);
+		err = -EINVAL;
+		goto err_ret;
+	}
+	while (1) {
+		ntfs_debug(DEBUG_OTHER, "%s(): Start of outer while "
+				"loop: done_zones = 0x%x, search_zone = %i, "
+				"pass = %i, zone_start = 0x%x, zone_end = "
+				"0x%x, initial_location = 0x%x, buf_pos = "
+				"0x%x, rlpos = %i, rlsize = %i.\n",
+				__FUNCTION__, done_zones, search_zone, pass,
+				zone_start, zone_end, initial_location, buf_pos,
+				rlpos, rlsize);
+		/* Loop until we run out of free clusters. */
+		io.param = buf;
+		io.size = PAGE_SIZE;
+		io.do_read = 1;
+		last_read_pos = buf_pos >> 3;
+		ntfs_debug(DEBUG_OTHER, "%s(): last_read_pos = 0x%x.\n",
+				__FUNCTION__, last_read_pos);
+		err = ntfs_readwrite_attr(vol->bitmap, data, last_read_pos,
+				&io);
+		if (err) {
+			ntfs_debug(DEBUG_OTHER, "%s(): ntfs_read_attr failed "
+					"with error code %i, going to "
+					"err_ret.\n", __FUNCTION__, -err);
+			goto err_ret;
+		}
+		if (!io.size) {
+			ntfs_debug(DEBUG_OTHER, "%s(): !io.size, going to "
+					"zone_pass_done.\n", __FUNCTION__);
+			goto zone_pass_done;
+		}
+		buf_size = io.size << 3;
+		lcn = buf_pos & 7;
+		buf_pos &= ~7;
+		need_writeback = 0;
+		ntfs_debug(DEBUG_OTHER, "%s(): Before inner while "
+				"loop: buf_size = 0x%x, lcn = 0x%x, buf_pos = "
+				"0x%x, need_writeback = %i.\n", __FUNCTION__,
+				buf_size, lcn, buf_pos, need_writeback);
+		while (lcn < buf_size && lcn + buf_pos < zone_end) {
+			byte = buf + (lcn >> 3);
+			ntfs_debug(DEBUG_OTHER, "%s(): In inner while loop: "
+					"buf_size = 0x%x, lcn = 0x%x, buf_pos "
+					"= 0x%x, need_writeback = %i, byte ofs "
+					"= 0x%x, *byte = 0x%x.\n", __FUNCTION__,
+					buf_size, lcn, buf_pos,	need_writeback,
+					lcn >> 3, *byte);
+			/* Skip full bytes. */
+			if (*byte == 0xff) {
+				lcn += 8;
+				ntfs_debug(DEBUG_OTHER, "%s(): continuing while"
+					    " loop 1.\n", __FUNCTION__);
+				continue;
+			}
+			bit = 1 << (lcn & 7);
+			ntfs_debug(DEBUG_OTHER, "%s(): bit = %i.\n",
+					__FUNCTION__, bit);
+			/* If the bit is already set, go onto the next one. */
+			if (*byte & bit) {
+				lcn++;
+				ntfs_debug(DEBUG_OTHER, "%s(): continuing while"
+					    " loop 2.\n", __FUNCTION__);
+				continue;
+			}
+			/* Allocate the bitmap bit. */
+			*byte |= bit;
+			/* We need to write this bitmap buffer back to disk! */
+			need_writeback = 1;
+			ntfs_debug(DEBUG_OTHER, "%s(): *byte = 0x%x, "
+					"need_writeback = %i.\n", __FUNCTION__,
+					*byte, need_writeback);
+			/* Reallocate memory if necessary. */
+			if ((rlpos + 2) * sizeof(ntfs_runlist) >= rlsize) {
+				ntfs_debug(DEBUG_OTHER, "%s(): Reallocating "
+						"space.\n", __FUNCTION__);
+				/* Setup first free bit return value. */
+				if (!rl2) {
+					*location = lcn + buf_pos;
+					ntfs_debug(DEBUG_OTHER,	"%s(): "
+							"*location = 0x%x.\n",
+							__FUNCTION__,
+							*location);
+				}
+				rlsize += PAGE_SIZE;
+				rlt = ntfs_vmalloc(rlsize);
+				if (!rlt) {
+					err = -ENOMEM;
+					ntfs_debug(DEBUG_OTHER, "%s(): Failed "
+							"to allocate memory, "
+							"returning -ENOMEM, "
+							"going to wb_err_ret.\n",
+							__FUNCTION__);
+					goto wb_err_ret;
+				}
+				if (rl2) {
+					ntfs_memcpy(rlt, rl2, rlsize -
+							PAGE_SIZE);
+					ntfs_vfree(rl2);
+				}
+				rl2 = rlt;
+				ntfs_debug(DEBUG_OTHER, "%s(): Reallocated "
+						"memory, rlsize = 0x%x.\n",
+						__FUNCTION__, rlsize);
+			}
+			/*
+			 * Coalesce with previous run if adjacent LCNs.
+			 * Otherwise, append a new run.
+			 */
+			ntfs_debug(DEBUG_OTHER, "%s(): Adding run (lcn 0x%x, "
+					"len 0x%x), prev_lcn = 0x%x, lcn = "
+					"0x%x, buf_pos = 0x%x, prev_run_len = "
+					"0x%x, rlpos = %i.\n", __FUNCTION__,
+					lcn + buf_pos, 1, prev_lcn, lcn,
+					buf_pos, prev_run_len, rlpos);
+			if (prev_lcn == lcn + buf_pos - prev_run_len && rlpos) {
+				ntfs_debug(DEBUG_OTHER, "%s(): Coalescing to "
+						"run (lcn 0x%x, len 0x%x).\n",
+						__FUNCTION__,
+						rl2[rlpos - 1].lcn,
+						rl2[rlpos - 1].len);
+				rl2[rlpos - 1].len = ++prev_run_len;
+				ntfs_debug(DEBUG_OTHER, "%s(): Run now (lcn "
+						"0x%x, len 0x%x), prev_run_len "
+						"= 0x%x.\n", __FUNCTION__,
+						rl2[rlpos - 1].lcn,
+						rl2[rlpos - 1].len,
+						prev_run_len);
+			} else {
+				if (rlpos)
+					ntfs_debug(DEBUG_OTHER, "%s(): Adding "
+							"new run, (previous "
+							"run lcn 0x%x, "
+							"len 0x%x).\n",
+							__FUNCTION__,
+							rl2[rlpos - 1].lcn,
+							rl2[rlpos - 1].len);
+				else
+					ntfs_debug(DEBUG_OTHER, "%s(): Adding "
+							"new run, is first "
+							"run.\n", __FUNCTION__);
+				rl2[rlpos].lcn = prev_lcn = lcn + buf_pos;
+				rl2[rlpos].len = prev_run_len =
+						(ntfs_cluster_t)1;
+				
+				rlpos++;
+			}
+			/* Done? */
+			if (!--clusters) {
+				ntfs_cluster_t tc;
+				/*
+				 * Update the current zone position. Positions
+				 * of already scanned zones have been updated
+				 * during the respective zone switches.
+				 */
+				tc = lcn + buf_pos + 1;
+				ntfs_debug(DEBUG_OTHER, "%s(): Done. Updating "
+						"current zone position, tc = "
+						"0x%x, search_zone = %i.\n",
+						__FUNCTION__, tc, search_zone);
+				switch (search_zone) {
+				case 1:
+					ntfs_debug(DEBUG_OTHER,
+							"%s(): Before checks, "
+							"vol->mft_zone_pos = "
+							"0x%x.\n", __FUNCTION__,
+							vol->mft_zone_pos);
+					if (tc >= vol->mft_zone_end) {
+						vol->mft_zone_pos =
+								vol->mft_lcn;
+						if (!vol->mft_zone_end)
+							vol->mft_zone_pos =
+							     (ntfs_cluster_t)0;
+					} else if ((initial_location >=
+							vol->mft_zone_pos ||
+							tc > vol->mft_zone_pos)
+							&& tc >= vol->mft_lcn)
+						vol->mft_zone_pos = tc;
+					ntfs_debug(DEBUG_OTHER,
+							"%s(): After checks, "
+							"vol->mft_zone_pos = "
+							"0x%x.\n", __FUNCTION__,
+							vol->mft_zone_pos);
+					break;
+				case 2:
+					ntfs_debug(DEBUG_OTHER,
+							"%s(): Before checks, "
+							"vol->data1_zone_pos = "
+							"0x%x.\n", __FUNCTION__,
+							vol->data1_zone_pos);
+					if (tc >= vol->nr_clusters)
+						vol->data1_zone_pos =
+							     vol->mft_zone_end;
+					else if ((initial_location >=
+						    vol->data1_zone_pos ||
+						    tc > vol->data1_zone_pos)
+						    && tc >= vol->mft_zone_end)
+						vol->data1_zone_pos = tc;
+					ntfs_debug(DEBUG_OTHER,
+							"%s(): After checks, "
+							"vol->data1_zone_pos = "
+							"0x%x.\n", __FUNCTION__,
+							vol->data1_zone_pos);
+					break;
+				case 4:
+					ntfs_debug(DEBUG_OTHER,
+							"%s(): Before checks, "
+							"vol->data2_zone_pos = "
+							"0x%x.\n", __FUNCTION__,
+							vol->data2_zone_pos);
+					if (tc >= vol->mft_zone_start)
+						vol->data2_zone_pos =
+							(ntfs_cluster_t)0;
+					else if (initial_location >=
+						      vol->data2_zone_pos ||
+						      tc > vol->data2_zone_pos)
+						vol->data2_zone_pos = tc;
+					ntfs_debug(DEBUG_OTHER,
+							"%s(): After checks, "
+							"vol->data2_zone_pos = "
+							"0x%x.\n", __FUNCTION__,
+							vol->data2_zone_pos);
+					break;
+				default:
+					BUG();
+				}
+				ntfs_debug(DEBUG_OTHER, "%s(): Going to "
+						"done_ret.\n", __FUNCTION__);
+				goto done_ret;
+			}
+			lcn++;
+		}
+		buf_pos += buf_size;
+		ntfs_debug(DEBUG_OTHER, "%s(): After inner while "
+				"loop: buf_size = 0x%x, lcn = 0x%x, buf_pos = "
+				"0x%x, need_writeback = %i.\n", __FUNCTION__,
+				buf_size, lcn, buf_pos, need_writeback);
+		if (need_writeback) {
+			ntfs_debug(DEBUG_OTHER, "%s(): Writing back.\n",
+					__FUNCTION__);
+			need_writeback = 0;
+			io.param = buf;
+			io.do_read = 0;
+			err = ntfs_readwrite_attr(vol->bitmap, data,
+					last_read_pos, &io);
+			if (err) {
+				ntfs_error("%s(): Bitmap writeback failed "
+						"in read next buffer code "
+						"path with error code %i.\n",
+						__FUNCTION__, -err);
+				goto err_ret;
+			}
+		}
+		if (buf_pos < zone_end) {
+			ntfs_debug(DEBUG_OTHER, "%s(): Continuing "
+					"outer while loop, buf_pos = 0x%x, "
+					"zone_end = 0x%x.\n", __FUNCTION__,
+					buf_pos, zone_end);
+			continue;
+		}
+zone_pass_done:	/* Finished with the current zone pass. */
+		ntfs_debug(DEBUG_OTHER, "%s(): At zone_pass_done, pass = %i.\n",
+				__FUNCTION__, pass);
+		if (pass == 1) {
+			/*
+			 * Now do pass 2, scanning the first part of the zone
+			 * we omitted in pass 1.
+			 */
+			pass = 2;
+			zone_end = zone_start;
+			switch (search_zone) {
+			case 1: /* mft_zone */
+				zone_start = vol->mft_zone_start;
+				break;
+			case 2: /* data1_zone */
+				zone_start = vol->mft_zone_end;
+				break;
+			case 4: /* data2_zone */
+				zone_start = (ntfs_cluster_t)0;
+				break;
+			default:
+				BUG();
+			}
+			/* Sanity check. */
+			if (zone_end < zone_start)
+				zone_end = zone_start;
+			buf_pos = zone_start;
+			ntfs_debug(DEBUG_OTHER, "%s(): Continuing "
+					"outer while loop, pass = 2, "
+					"zone_start = 0x%x, zone_end = 0x%x, "
+					"buf_pos = 0x%x.\n", __FUNCTION__,
+					zone_start, zone_end, buf_pos);
+			continue;
+		} /* pass == 2 */
+done_zones_check:
+		ntfs_debug(DEBUG_OTHER, "%s(): At done_zones_check, "
+				"search_zone = %i, done_zones before = 0x%x, "
+				"done_zones after = 0x%x.\n", __FUNCTION__,
+				search_zone, done_zones, done_zones |
+				search_zone);
+		done_zones |= search_zone;
+		if (done_zones < 7) {
+			ntfs_debug(DEBUG_OTHER, "%s(): Switching zone.\n",
+					__FUNCTION__);
+			/* Now switch to the next zone we haven't done yet. */
+			pass = 1;
+			switch (search_zone) {
+			case 1:
+				ntfs_debug(DEBUG_OTHER, "%s(): Switching from "
+						"mft zone to data1 zone.\n",
+						__FUNCTION__);
+				/* Update mft zone position. */
+				if (rlpos) {
+					ntfs_cluster_t tc;
+					ntfs_debug(DEBUG_OTHER,
+							"%s(): Before checks, "
+							"vol->mft_zone_pos = "
+							"0x%x.\n", __FUNCTION__,
+							vol->mft_zone_pos);
+					tc = rl2[rlpos - 1].lcn +
+							rl2[rlpos - 1].len;
+					if (tc >= vol->mft_zone_end) {
+						vol->mft_zone_pos =
+								vol->mft_lcn;
+						if (!vol->mft_zone_end)
+							vol->mft_zone_pos =
+							     (ntfs_cluster_t)0;
+					} else if ((initial_location >=
+							vol->mft_zone_pos ||
+							tc > vol->mft_zone_pos)
+							&& tc >= vol->mft_lcn)
+						vol->mft_zone_pos = tc;
+					ntfs_debug(DEBUG_OTHER,
+							"%s(): After checks, "
+							"vol->mft_zone_pos = "
+							"0x%x.\n", __FUNCTION__,
+							vol->mft_zone_pos);
+				}
+				/* Switch from mft zone to data1 zone. */
+switch_to_data1_zone:		search_zone = 2;
+				zone_start = initial_location =
+						vol->data1_zone_pos;
+				zone_end = vol->nr_clusters;
+				if (zone_start == vol->mft_zone_end)
+					pass = 2;
+				if (zone_start >= zone_end) {
+					vol->data1_zone_pos = zone_start =
+							vol->mft_zone_end;
+					pass = 2;
+				}
+				break;
+			case 2:
+				ntfs_debug(DEBUG_OTHER, "%s(): Switching from "
+						"data1 zone to data2 zone.\n",
+						__FUNCTION__);
+				/* Update data1 zone position. */
+				if (rlpos) {
+					ntfs_cluster_t tc;
+					ntfs_debug(DEBUG_OTHER,
+							"%s(): Before checks, "
+							"vol->data1_zone_pos = "
+							"0x%x.\n", __FUNCTION__,
+							vol->data1_zone_pos);
+					tc = rl2[rlpos - 1].lcn +
+							rl2[rlpos - 1].len;
+					if (tc >= vol->nr_clusters)
+						vol->data1_zone_pos =
+							     vol->mft_zone_end;
+					else if ((initial_location >=
+						    vol->data1_zone_pos ||
+						    tc > vol->data1_zone_pos)
+						    && tc >= vol->mft_zone_end)
+						vol->data1_zone_pos = tc;
+					ntfs_debug(DEBUG_OTHER,
+							"%s(): After checks, "
+							"vol->data1_zone_pos = "
+							"0x%x.\n", __FUNCTION__,
+							vol->data1_zone_pos);
+				}
+				/* Switch from data1 zone to data2 zone. */
+				search_zone = 4;
+				zone_start = initial_location =
+						vol->data2_zone_pos;
+				zone_end = vol->mft_zone_start;
+				if (!zone_start)
+					pass = 2;
+				if (zone_start >= zone_end) {
+					vol->data2_zone_pos = zone_start =
+							initial_location =
+							(ntfs_cluster_t)0;
+					pass = 2;
+				}
+				break;
+			case 4:
+				ntfs_debug(DEBUG_OTHER, "%s(): Switching from "
+						"data2 zone to data1 zone.\n",
+						__FUNCTION__);
+				/* Update data2 zone position. */
+				if (rlpos) {
+					ntfs_cluster_t tc;
+					ntfs_debug(DEBUG_OTHER,
+							"%s(): Before checks, "
+							"vol->data2_zone_pos = "
+							"0x%x.\n", __FUNCTION__,
+							vol->data2_zone_pos);
+					tc = rl2[rlpos - 1].lcn +
+							rl2[rlpos - 1].len;
+					if (tc >= vol->mft_zone_start)
+						vol->data2_zone_pos =
+							     (ntfs_cluster_t)0;
+					else if (initial_location >=
+						      vol->data2_zone_pos ||
+						      tc > vol->data2_zone_pos)
+						vol->data2_zone_pos = tc;
+					ntfs_debug(DEBUG_OTHER,
+							"%s(): After checks, "
+							"vol->data2_zone_pos = "
+							"0x%x.\n", __FUNCTION__,
+							vol->data2_zone_pos);
+				}
+				/* Switch from data2 zone to data1 zone. */
+				goto switch_to_data1_zone; /* See above. */
+			default:
+				BUG();
+			}
+			ntfs_debug(DEBUG_OTHER, "%s(): After zone switch, "
+					"search_zone = %i, pass = %i, "
+					"initial_location = 0x%x, zone_start "
+					"= 0x%x, zone_end = 0x%x.\n",
+					__FUNCTION__, search_zone, pass,
+					initial_location, zone_start, zone_end);
+			buf_pos = zone_start;
+			if (zone_start == zone_end) {
+				ntfs_debug(DEBUG_OTHER, "%s(): Empty zone, "
+						"going to done_zones_check.\n",
+						__FUNCTION__);
+				/* Empty zone. Don't bother searching it. */
+				goto done_zones_check;
+			}
+			ntfs_debug(DEBUG_OTHER, "%s(): Continuing outer while "
+					"loop.\n", __FUNCTION__);
+			continue;
+		} /* done_zones == 7 */
+		ntfs_debug(DEBUG_OTHER, "%s(): All zones are finished.\n",
+				__FUNCTION__);
+		/*
+		 * All zones are finished! If DATA_ZONE, shrink mft zone. If
+		 * MFT_ZONE, we have really run out of space.
+		 */
+		mft_zone_size = vol->mft_zone_end - vol->mft_zone_start;
+		ntfs_debug(DEBUG_OTHER, "%s(): vol->mft_zone_start = 0x%x, "
+				"vol->mft_zone_end = 0x%x, mft_zone_size = "
+				"0x%x.\n", __FUNCTION__, vol->mft_zone_start,
+				vol->mft_zone_end, mft_zone_size);
+		if (zone == MFT_ZONE || mft_zone_size <= (ntfs_cluster_t)0) {
+			ntfs_debug(DEBUG_OTHER, "%s(): No free clusters left, "
+					"returning -ENOSPC, going to "
+					"fail_ret.\n", __FUNCTION__);
+			/* Really no more space left on device. */
+			err = -ENOSPC;
+			goto fail_ret;
+		} /* zone == DATA_ZONE && mft_zone_size > 0 */
+		ntfs_debug(DEBUG_OTHER, "%s(): Shrinking mft zone.\n",
+				__FUNCTION__);
+		zone_end = vol->mft_zone_end;
+		mft_zone_size >>= 1;
+		if (mft_zone_size > (ntfs_cluster_t)0)
+			vol->mft_zone_end = vol->mft_zone_start + mft_zone_size;
+		else /* mft zone and data2 zone no longer exist. */
+			vol->data2_zone_pos = vol->mft_zone_start =
+					vol->mft_zone_end = (ntfs_cluster_t)0;
+		if (vol->mft_zone_pos >= vol->mft_zone_end) {
+			vol->mft_zone_pos = vol->mft_lcn;
+			if (!vol->mft_zone_end)
+				vol->mft_zone_pos = (ntfs_cluster_t)0;
+		}
+		buf_pos = zone_start = initial_location =
+				vol->data1_zone_pos = vol->mft_zone_end;
+		search_zone = 2;
+		pass = 2;
+		done_zones &= ~2;
+		ntfs_debug(DEBUG_OTHER, "%s(): After shrinking mft "
+				"zone, mft_zone_size = 0x%x, "
+				"vol->mft_zone_start = 0x%x, vol->mft_zone_end "
+				"= 0x%x, vol->mft_zone_pos = 0x%x, search_zone "
+				"= 2, pass = 2, dones_zones = 0x%x, zone_start "
+				"= 0x%x, zone_end = 0x%x, vol->data1_zone_pos "
+				"= 0x%x, continuing outer while loop.\n",
+				__FUNCTION__, mft_zone_size,
+				vol->mft_zone_start, vol->mft_zone_end,
+				vol->mft_zone_pos, done_zones, zone_start,
+				zone_end, vol->data1_zone_pos);
+	}
+	ntfs_debug(DEBUG_OTHER, "%s(): After outer while loop.\n",
+			__FUNCTION__);
+done_ret:
+	ntfs_debug(DEBUG_OTHER, "%s(): At done_ret.\n", __FUNCTION__);
+	rl2[rlpos].lcn = (ntfs_cluster_t)-1;
+	rl2[rlpos].len = (ntfs_cluster_t)0;
+	*rl = rl2;
+	*rl_len = rlpos;
+	if (need_writeback) {
+		ntfs_debug(DEBUG_OTHER, "%s(): Writing back.\n", __FUNCTION__);
+		need_writeback = 0;
+		io.param = buf;
+		io.do_read = 0;
+		err = ntfs_readwrite_attr(vol->bitmap, data, last_read_pos,
+				&io);
+		if (err) {
+			ntfs_error("%s(): Bitmap writeback failed in done "
+					"code path with error code %i.\n",
+					__FUNCTION__, -err);
+			goto err_ret;
+		}
+		ntfs_debug(DEBUG_OTHER, "%s(): Wrote 0x%Lx bytes.\n",
+				__FUNCTION__, io.size);
+	}
+done_fail_ret:
+	ntfs_debug(DEBUG_OTHER, "%s(): At done_fail_ret (follows done_ret).\n",
+			 __FUNCTION__);
+	unlock_kernel();
+	free_page((unsigned long)buf);
+	if (err)
+		ntfs_debug(DEBUG_FILE3, "%s(): Failed to allocate "
+				"clusters. Returning with error code %i.\n",
+				__FUNCTION__, -err);
+	ntfs_debug(DEBUG_OTHER, "%s(): Syncing $Bitmap inode.\n", __FUNCTION__);
+	if (ntfs_update_inode(vol->bitmap))
+		ntfs_error("%s(): Failed to sync inode $Bitmap. "
+				"Continuing anyway.\n", __FUNCTION__);
+	ntfs_debug(DEBUG_OTHER, "%s(): Returning with code %i.\n", __FUNCTION__,
+			err);
+	return err;
+fail_ret:
+	ntfs_debug(DEBUG_OTHER, "%s(): At fail_ret.\n", __FUNCTION__);
+	if (rl2) {
+		if (err == -ENOSPC) {
+			/* Return first free lcn and count of free clusters. */
+			*location = rl2[0].lcn;
+			*count -= clusters;
+			ntfs_debug(DEBUG_OTHER, "%s(): err = -ENOSPC, "
+					"*location = 0x%x, *count = 0x%x.\n",
+					__FUNCTION__, *location, *count);
+		}
+		/* Deallocate all allocated clusters. */
+		ntfs_debug(DEBUG_OTHER, "%s(): Deallocating allocated "
+				"clusters.\n", __FUNCTION__);
+		ntfs_deallocate_clusters(vol, rl2, rlpos);
+		/* Free the runlist. */
+		ntfs_vfree(rl2);
+	} else {
+		if (err == -ENOSPC) {
+			/* Nothing free at all. */
+			*location = vol->data1_zone_pos; /* Irrelevant... */
+			*count = 0;
+			ntfs_debug(DEBUG_OTHER, "%s(): No space left at all, "
+					"err = -ENOSPC, *location = 0x%x, "
+					"*count = 0.\n",
+					__FUNCTION__, *location);
+		}
+	}
+	*rl = NULL;
+	*rl_len = 0;
+	ntfs_debug(DEBUG_OTHER, "%s(): *rl = NULL, *rl_len = 0, "
+			"going to done_fail_ret.\n", __FUNCTION__);
+	goto done_fail_ret;
+wb_err_ret:
+	ntfs_debug(DEBUG_OTHER, "%s(): At wb_err_ret.\n", __FUNCTION__);
+	if (need_writeback) {
+		int __err;
+		ntfs_debug(DEBUG_OTHER, "%s(): Writing back.\n", __FUNCTION__);
+		io.param = buf;
+		io.do_read = 0;
+		__err = ntfs_readwrite_attr(vol->bitmap, data, last_read_pos,
+				&io);
+		if (__err)
+			ntfs_error("%s(): Bitmap writeback failed in error "
+					"code path with error code %i.\n",
+					__FUNCTION__, -__err);
+		need_writeback = 0;
+	}
+err_ret:
+	ntfs_debug(DEBUG_OTHER, "%s(): At err_ret, *location = -1, "
+			"*count = 0, going to fail_ret.\n", __FUNCTION__);
+	*location = -1;
+	*count = 0;
+	goto fail_ret;
+}
+
+/*
+ * IMPORTANT: Caller has to hold big kernel lock or the race monster will come
+ * to get you! (-;
+ * TODO: Need our own lock for bitmap accesses but BKL is more secure for now,
+ * considering we might not have covered all places with a lock yet. In that
+ * case the BKL offers a one way exclusion which is better than no exclusion
+ * at all... (AIA)
+ */
+static int ntfs_clear_bitrange(ntfs_inode *bitmap,
+		const ntfs_cluster_t start_bit, const ntfs_cluster_t count)
+{
+	ntfs_cluster_t buf_size, bit, nr_bits = count;
+	unsigned char *buf, *byte;
+	int err;
+	ntfs_io io;
+
+	io.fn_put = ntfs_put;
+	io.fn_get = ntfs_get;
+	/* Calculate the required buffer size in bytes. */
+	buf_size = (ntfs_cluster_t)((start_bit & 7) + nr_bits + 7) >> 3;
+	if (buf_size <= (ntfs_cluster_t)(64 * 1024))
+		buf = ntfs_malloc(buf_size);
+	else
+		buf = ntfs_vmalloc(buf_size);
+	if (!buf)
+		return -ENOMEM;
+	/* Read the bitmap from the data attribute. */
+	io.param = byte = buf;
+	io.size = buf_size;
+	err = ntfs_read_attr(bitmap, bitmap->vol->at_data, 0, start_bit >> 3,
+			&io);
+	if (err || io.size != buf_size)
+		goto err_out;
+	/* Now clear the bits in the read bitmap. */
+	bit = start_bit & 7;
+	while (bit && nr_bits) { /* Process first partial byte, if present. */
+		*byte &= ~(1 << bit++);
+		nr_bits--;
+		bit &= 7;
+		if (!bit)
+			byte++;
+	}
+	while (nr_bits >= 8) { /* Process full bytes. */
+		*byte = 0;
+		nr_bits -= 8;
+		byte++;
+	}
+	bit = 0;
+	while (nr_bits) { /* Process last partial byte, if present. */
+		*byte &= ~(1 << bit);
+		nr_bits--;
+		bit++;
+	}
+	/* Write the modified bitmap back to disk. */
+	io.param = buf;
+	io.size = buf_size;
+	err = ntfs_write_attr(bitmap, bitmap->vol->at_data, 0, start_bit >> 3,
+			&io);
+err_out:
+	if (buf_size <= (ntfs_cluster_t)(64 * 1024))
+		ntfs_free(buf);
+	else
+		ntfs_vfree(buf);
+	if (!err && io.size != buf_size)
+		err = -EIO;
+	return err;
+}
+
+/*
+ * See comments for lack of zone adjustments below in the description of the
+ * function ntfs_deallocate_clusters().
+ */
+int ntfs_deallocate_cluster_run(const ntfs_volume *vol,
+		const ntfs_cluster_t lcn, const ntfs_cluster_t len)
+{
+	int err;
+
+	lock_kernel();
+	err = ntfs_clear_bitrange(vol->bitmap, lcn, len);
+	unlock_kernel();
+	return err;
+}
+
+/*
+ * This is inefficient, but logically trivial, so will do for now. Note, we
+ * do not touch the mft nor the data zones here because we want to minimize
+ * recycling of clusters to enhance the chances of data being undeleteable.
+ * Also we don't want the overhead. Instead we do one additional sweep of the
+ * current data zone during cluster allocation to check for freed clusters.
+ */
+int ntfs_deallocate_clusters(const ntfs_volume *vol, const ntfs_runlist *rl,
+		const int rl_len)
+{
+	int i, err;
+
+	lock_kernel();
+	for (i = err = 0; i < rl_len && !err; i++)
+		err = ntfs_clear_bitrange(vol->bitmap, rl[i].lcn, rl[i].len);
+	unlock_kernel();
+	return err;
+}
+
diff --git a/fs/ntfs/super.h b/fs/ntfs/super.h
new file mode 100644
index 00000000000000..a974a5f46340c1
--- /dev/null
+++ b/fs/ntfs/super.h
@@ -0,0 +1,32 @@
+/*
+ * super.h - Header file for super.c
+ *
+ * Copyright (C) 1995-1997 Martin von Löwis
+ * Copyright (C) 1996-1997 Régis Duchesne
+ * Copyright (c) 2001 Anton Altaparmakov
+ */
+
+int ntfs_get_free_cluster_count(ntfs_inode *bitmap);
+
+int ntfs_get_volumesize(ntfs_volume *vol, __s64 *vol_size);
+
+int ntfs_init_volume(ntfs_volume *vol, char *boot);
+
+int ntfs_load_special_files(ntfs_volume *vol);
+
+int ntfs_release_volume(ntfs_volume *vol);
+
+int ntfs_insert_fixups(unsigned char *rec, int rec_size);
+
+int ntfs_fixup_record(char *record, char *magic, int size);
+
+int ntfs_allocate_clusters(ntfs_volume *vol, ntfs_cluster_t *location,
+		ntfs_cluster_t *count, ntfs_runlist **rl, int *rl_len,
+		const NTFS_CLUSTER_ALLOCATION_ZONES zone);
+
+int ntfs_deallocate_cluster_run(const ntfs_volume *vol,
+		const ntfs_cluster_t lcn, const ntfs_cluster_t len);
+
+int ntfs_deallocate_clusters(const ntfs_volume *vol, const ntfs_runlist *rl,
+		const int rl_len);
+
diff --git a/fs/ntfs/support.c b/fs/ntfs/support.c
new file mode 100644
index 00000000000000..8cc6f26ec8ebce
--- /dev/null
+++ b/fs/ntfs/support.c
@@ -0,0 +1,316 @@
+/*
+ * support.c -  Specific support functions
+ *
+ * Copyright (C) 1997 Martin von Löwis
+ * Copyright (C) 1997 Régis Duchesne
+ * Copyright (C) 2001 Anton Altaparmakov (AIA)
+ */
+
+#include "ntfstypes.h"
+#include "struct.h"
+#include "support.h"
+
+#include <stdarg.h>
+#include <linux/slab.h>
+#include <linux/locks.h>
+#include <linux/fs.h>
+#include "util.h"
+#include "inode.h"
+#include "macros.h"
+#include <linux/nls.h>
+
+static char print_buf[1024];
+
+#ifdef DEBUG
+#include "sysctl.h"
+#include <linux/kernel.h>
+
+/* Debugging output */
+void ntfs_debug(int mask, const char *fmt, ...)
+{
+	va_list ap;
+
+	/* Filter it with the debugging level required */
+	if (ntdebug & mask) {
+		va_start(ap,fmt);
+		strcpy(print_buf, KERN_DEBUG "NTFS: ");
+		vsprintf(print_buf + 9, fmt, ap);
+		printk(print_buf);
+		va_end(ap);
+	}
+}
+
+#ifndef ntfs_malloc
+/* Verbose kmalloc */
+void *ntfs_malloc(int size)
+{
+	void *ret;
+
+	ret = kmalloc(size, GFP_KERNEL);
+	ntfs_debug(DEBUG_MALLOC, "Allocating %x at %p\n", size, ret);
+
+	return ret;
+}
+#endif
+
+#ifndef ntfs_free
+/* Verbose kfree() */
+void ntfs_free(void *block)
+{
+        ntfs_debug(DEBUG_MALLOC, "Freeing memory at %p\n", block);
+	kfree(block);
+}
+#endif
+#else /* End of DEBUG functions. Normal ones below... */
+
+#ifndef ntfs_malloc
+void *ntfs_malloc(int size)
+{
+	return kmalloc(size, GFP_KERNEL);
+}
+#endif
+
+#ifndef ntfs_free
+void ntfs_free(void *block)
+{
+	kfree(block);
+}
+#endif
+#endif /* DEBUG */
+
+void ntfs_bzero(void *s, int n)
+{
+	memset(s, 0, n);
+}
+
+/* These functions deliberately return no value. It is dest, anyway,
+   and not used anywhere in the NTFS code.  */
+
+void ntfs_memcpy(void *dest, const void *src, ntfs_size_t n)
+{
+	memcpy(dest, src, n);
+}
+
+void ntfs_memmove(void *dest, const void *src, ntfs_size_t n)
+{
+	memmove(dest, src, n);
+}
+
+/* Warn that an error occurred. */
+void ntfs_error(const char *fmt,...)
+{
+        va_list ap;
+
+        va_start(ap, fmt);
+        strcpy(print_buf, KERN_ERR "NTFS: ");
+        vsprintf(print_buf + 9, fmt, ap);
+        printk(print_buf);
+        va_end(ap);
+}
+
+int ntfs_read_mft_record(ntfs_volume *vol, int mftno, char *buf)
+{
+	int error;
+	ntfs_io io;
+
+	ntfs_debug(DEBUG_OTHER, "read_mft_record 0x%x\n", mftno);
+	if (mftno == FILE_Mft)
+	{
+		ntfs_memcpy(buf, vol->mft, vol->mft_record_size);
+		return 0;
+	}
+	if (!vol->mft_ino)
+	{
+		printk(KERN_ERR "NTFS: mft_ino is NULL. Something is terribly "
+				"wrong here!\n");
+		return -ENODATA;
+	}
+ 	io.fn_put = ntfs_put;
+	io.fn_get = 0;
+	io.param = buf;
+	io.size = vol->mft_record_size;
+	ntfs_debug(DEBUG_OTHER, "read_mft_record: calling ntfs_read_attr with: "
+		"mftno = 0x%x, vol->mft_record_size_bits = 0x%x, "
+		"mftno << vol->mft_record_size_bits = 0x%Lx\n", mftno,
+		vol->mft_record_size_bits,
+		(__s64)mftno << vol->mft_record_size_bits);
+	error = ntfs_read_attr(vol->mft_ino, vol->at_data, NULL,
+				(__s64)mftno << vol->mft_record_size_bits, &io);
+	if (error || (io.size != vol->mft_record_size)) {
+		ntfs_debug(DEBUG_OTHER, "read_mft_record: read 0x%x failed "
+				   	"(%d,%d,%d)\n", mftno, error, io.size,
+				   	vol->mft_record_size);
+		return error ? error : -ENODATA;
+	}
+	ntfs_debug(DEBUG_OTHER, "read_mft_record: finished read 0x%x\n", mftno);
+	if (!ntfs_check_mft_record(vol, buf)) {
+		/* FIXME: This is incomplete behaviour. We might be able to
+		 * recover at this stage. ntfs_check_mft_record() is too
+		 * conservative at aborting it's operations. It is OK for
+		 * now as we just can't handle some on disk structures
+		 * this way. (AIA) */
+		printk(KERN_WARNING "NTFS: Invalid MFT record for 0x%x\n", mftno);
+		return -EIO;
+	}
+	ntfs_debug(DEBUG_OTHER, "read_mft_record: Done 0x%x\n", mftno);
+	return 0;
+}
+
+int ntfs_getput_clusters(ntfs_volume *vol, int cluster, ntfs_size_t start_offs,
+		ntfs_io *buf)
+{
+	struct super_block *sb = NTFS_SB(vol);
+	struct buffer_head *bh;
+	int length = buf->size;
+	int error = 0;
+	ntfs_size_t to_copy;
+
+	ntfs_debug(DEBUG_OTHER, "%s_clusters %d %d %d\n", 
+		   buf->do_read ? "get" : "put", cluster, start_offs, length);
+	to_copy = vol->cluster_size - start_offs;
+	while (length) {
+		if (!(bh = sb_bread(sb, cluster))) {
+			ntfs_debug(DEBUG_OTHER, "%s failed\n",
+				   buf->do_read ? "Reading" : "Writing");
+			error = -EIO;
+			goto error_ret;
+		}
+		if (to_copy > length)
+			to_copy = length;
+		lock_buffer(bh);
+		if (buf->do_read) {
+			buf->fn_put(buf, bh->b_data + start_offs, to_copy);
+			unlock_buffer(bh);
+		} else {
+			buf->fn_get(bh->b_data + start_offs, buf, to_copy);
+			mark_buffer_dirty(bh);
+			unlock_buffer(bh);
+			/*
+			 * Note: We treat synchronous IO on a per volume basis
+			 * disregarding flags of individual inodes. This can
+			 * lead to some strange write ordering effects upon a
+			 * remount with a change in the sync flag but it should
+			 * not break anything. [Except if the system crashes
+			 * at that point in time but there would be more thigs
+			 * to worry about than that in that case...]. (AIA)
+			 */
+			if (sb->s_flags & MS_SYNCHRONOUS) {
+				ll_rw_block(WRITE, 1, &bh);
+				wait_on_buffer(bh);
+				if (buffer_req(bh) && !buffer_uptodate(bh)) {
+					printk(KERN_ERR "IO error syncing NTFS "
+					       "cluster [%s:%i]\n",
+					       bdevname(sb->s_dev), cluster);
+					brelse(bh);
+					error = -EIO;
+					goto error_ret;
+				}
+			}
+		}
+		brelse(bh);
+		length -= to_copy;
+		start_offs = 0;
+		to_copy = vol->cluster_size;
+		cluster++;
+	}
+error_ret:
+	return error;
+}
+
+ntfs_time64_t ntfs_now(void)
+{
+	return ntfs_unixutc2ntutc(CURRENT_TIME);
+}
+
+int ntfs_dupuni2map(ntfs_volume *vol, ntfs_u16 *in, int in_len, char **out,
+		int *out_len)
+{
+	int i, o, chl, chi;
+	char *result, *buf, charbuf[NLS_MAX_CHARSET_SIZE];
+	struct nls_table *nls = vol->nls_map;
+
+	result = ntfs_malloc(in_len + 1);
+	if (!result)
+		return -ENOMEM;
+	*out_len = in_len;
+	for (i = o = 0; i < in_len; i++) {
+		/* FIXME: Byte order? */
+		wchar_t uni = in[i];
+		if ((chl = nls->uni2char(uni, charbuf,
+				NLS_MAX_CHARSET_SIZE)) > 0) {
+			/* Adjust result buffer. */
+			if (chl > 1) {
+				buf = ntfs_malloc(*out_len + chl);
+				if (!buf) {
+					i = -ENOMEM;
+					goto err_ret;
+				}
+				memcpy(buf, result, o);
+				ntfs_free(result);
+				result = buf;
+				*out_len += (chl - 1);
+			}
+			for (chi = 0; chi < chl; chi++)
+				result[o++] = charbuf[chi];
+		} else {
+			/* Invalid character. */
+			printk(KERN_ERR "NTFS: Unicode name contains a "
+					"character that cannot be converted "
+					"to chosen character set. Remount "
+					"with utf8 encoding and this should "
+					"work.\n");
+			i = -EILSEQ;
+			goto err_ret;
+		}
+	}
+	result[*out_len] = '\0';
+	*out = result;
+	return 0;
+err_ret:
+	ntfs_free(result);
+	*out_len = 0;
+	*out = NULL;
+	return i;
+}
+
+int ntfs_dupmap2uni(ntfs_volume *vol, char* in, int in_len, ntfs_u16 **out,
+		int *out_len)
+{
+	int i, o;
+	ntfs_u16 *result;
+	struct nls_table *nls = vol->nls_map;
+
+	*out = result = ntfs_malloc(2 * in_len);
+	if (!result) {
+		*out_len = 0;
+		return -ENOMEM;
+	}
+	*out_len = in_len;
+	for (i = o = 0; i < in_len; i++, o++) {
+		wchar_t uni;
+		int charlen;
+
+		charlen = nls->char2uni(&in[i], in_len - i, &uni);
+		if (charlen < 0) {
+			i = charlen;
+			goto err_ret;
+		}
+		*out_len -= charlen - 1;
+		i += charlen - 1;
+		/* FIXME: Byte order? */
+		result[o] = uni;
+		if (!result[o]) {
+			i = -EILSEQ;
+			goto err_ret;
+		}
+	}
+	return 0;
+err_ret:
+	printk(KERN_ERR "NTFS: Name contains a character that cannot be "
+			"converted to Unicode.\n");
+	ntfs_free(result);
+	*out_len = 0;
+	*out = NULL;
+	return i;
+}
+
diff --git a/fs/ntfs/support.h b/fs/ntfs/support.h
new file mode 100644
index 00000000000000..0d91462fe4a00c
--- /dev/null
+++ b/fs/ntfs/support.h
@@ -0,0 +1,89 @@
+/*
+ * support.h - Header file for specific support.c
+ *
+ * Copyright (C) 1997 Régis Duchesne
+ * Copyright (c) 2001 Anton Altaparmakov (AIA)
+ */
+
+/* Debug levels */
+#define DEBUG_OTHER	1
+#define DEBUG_MALLOC	2
+#define DEBUG_BSD       4
+#define DEBUG_LINUX     8
+#define DEBUG_DIR1     16
+#define DEBUG_DIR2     32
+#define DEBUG_DIR3     64
+#define DEBUG_FILE1   128
+#define DEBUG_FILE2   256
+#define DEBUG_FILE3   512
+#define DEBUG_NAME1  1024
+#define DEBUG_NAME2  2048
+
+#ifdef DEBUG
+void ntfs_debug(int mask, const char *fmt, ...);
+#else
+#define ntfs_debug(mask, fmt...)	do {} while (0)
+#endif
+
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+
+#define ntfs_malloc(size)  kmalloc(size, GFP_KERNEL)
+
+#define ntfs_free(ptr)     kfree(ptr)
+
+/**
+ * ntfs_vmalloc - allocate memory in multiples of pages
+ * @size	number of bytes to allocate
+ *
+ * Allocates @size bytes of memory, rounded up to multiples of PAGE_SIZE and
+ * returns a pointer to the allocated memory.
+ *
+ * If there was insufficient memory to complete the request, return NULL.
+ */
+static inline void *ntfs_vmalloc(unsigned long size)
+{
+	if (size <= PAGE_SIZE) {
+		if (size) {
+			/* kmalloc() has per-CPU caches so if faster for now. */
+			return kmalloc(PAGE_SIZE, GFP_NOFS);
+			/* return (void *)__get_free_page(GFP_NOFS |
+					__GFP_HIGHMEM); */
+		}
+		BUG();
+	}
+	if (size >> PAGE_SHIFT < num_physpages)
+		return __vmalloc(size, GFP_NOFS | __GFP_HIGHMEM, PAGE_KERNEL);
+	return NULL;
+}
+
+static inline void ntfs_vfree(void *addr)
+{
+	if ((unsigned long)addr < VMALLOC_START) {
+		return kfree(addr);
+		/* return free_page((unsigned long)addr); */
+	}
+	vfree(addr);
+}
+
+void ntfs_bzero(void *s, int n);
+
+void ntfs_memcpy(void *dest, const void *src, ntfs_size_t n);
+
+void ntfs_memmove(void *dest, const void *src, ntfs_size_t n);
+
+void ntfs_error(const char *fmt,...);
+
+int ntfs_read_mft_record(ntfs_volume *vol, int mftno, char *buf);
+
+int ntfs_getput_clusters(ntfs_volume *pvol, int cluster, ntfs_size_t offs,
+			 ntfs_io *buf);
+
+ntfs_time64_t ntfs_now(void);
+
+int ntfs_dupuni2map(ntfs_volume *vol, ntfs_u16 *in, int in_len, char **out,
+		    int *out_len);
+
+int ntfs_dupmap2uni(ntfs_volume *vol, char* in, int in_len, ntfs_u16 **out,
+		    int *out_len);
+
diff --git a/fs/ntfs/sysctl.c b/fs/ntfs/sysctl.c
new file mode 100644
index 00000000000000..8d5807d5da31ed
--- /dev/null
+++ b/fs/ntfs/sysctl.c
@@ -0,0 +1,55 @@
+/*
+ * sysctl.c - System control stuff
+ *
+ * Copyright (C) 1997 Martin von Löwis
+ * Copyright (C) 1997 Régis Duchesne
+ */
+
+#include "sysctl.h"
+
+#ifdef DEBUG
+#include <linux/locks.h>
+#include <linux/sysctl.h>
+
+int ntdebug = 0;
+
+/* Add or remove the debug sysctl
+ * Is this really the only file system with sysctls ?
+ */
+void ntfs_sysctl(int add)
+{
+#define FS_NTFS             1
+	/* Definition of the sysctl */
+	static ctl_table ntfs_sysctls[]={
+		{FS_NTFS,                  /* ID */
+		 "ntfs-debug",             /* name in /proc */
+		 &ntdebug,sizeof(ntdebug), /* data ptr, data size */
+		 0644,                     /* mode */
+		 0,                        /* child */
+		 proc_dointvec,            /* proc handler */
+		 0,                        /* strategy */
+		 0,                        /* proc control block */
+		 0,0},                     /* extra */
+		{0}
+	};
+	/* Define the parent file : /proc/sys/fs */
+	static ctl_table sysctls_root[]={
+		{CTL_FS,
+		 "fs",
+		 NULL,0,
+		 0555,
+		 ntfs_sysctls},
+		{0}
+	};
+	static struct ctl_table_header *sysctls_root_header = NULL;
+
+	if(add){
+		if(!sysctls_root_header)
+			sysctls_root_header = register_sysctl_table(sysctls_root, 0);
+	} else if(sysctls_root_header) {
+		unregister_sysctl_table(sysctls_root_header);
+		sysctls_root_header = NULL;
+	}
+}
+#endif /* DEBUG */
+
diff --git a/fs/ntfs/sysctl.h b/fs/ntfs/sysctl.h
new file mode 100644
index 00000000000000..e10481b58d21b3
--- /dev/null
+++ b/fs/ntfs/sysctl.h
@@ -0,0 +1,17 @@
+/*
+ * sysctl.h - Header file for sysctl.c
+ *
+ * Copyright (C) 1997 Martin von Löwis
+ * Copyright (C) 1997 Régis Duchesne
+ */
+
+#ifdef DEBUG
+	extern int ntdebug;
+
+	void ntfs_sysctl(int add);
+
+	#define SYSCTL(x)	ntfs_sysctl(x)
+#else
+	#define SYSCTL(x)
+#endif /* DEBUG */
+
diff --git a/fs/ntfs/unistr.c b/fs/ntfs/unistr.c
new file mode 100644
index 00000000000000..2f32a419b14554
--- /dev/null
+++ b/fs/ntfs/unistr.c
@@ -0,0 +1,167 @@
+/*
+ * unistr.c - Unicode string handling. Part of the Linux-NTFS project.
+ *
+ * Copyright (c) 2000,2001 Anton Altaparmakov.
+ *
+ * This program/include file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program/include file is distributed in the hope that it will be 
+ * useful, but WITHOUT ANY WARRANTY; without even the implied warranty 
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program (in the main directory of the Linux-NTFS 
+ * distribution in the file COPYING); if not, write to the Free Software
+ * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/string.h>
+#include <asm/byteorder.h>
+
+#include "unistr.h"
+#include "macros.h"
+
+/*
+ * This is used by the name collation functions to quickly determine what
+ * characters are (in)valid.
+ */
+const __u8 legal_ansi_char_array[0x40] = {
+	0x00, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10,
+	0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10,
+
+	0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10,
+	0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10,
+
+	0x17, 0x07, 0x18, 0x17, 0x17, 0x17, 0x17, 0x17,
+	0x17, 0x17, 0x18, 0x16, 0x16, 0x17, 0x07, 0x00,
+
+	0x17, 0x17, 0x17, 0x17, 0x17, 0x17, 0x17, 0x17,
+	0x17, 0x17, 0x04, 0x16, 0x18, 0x16, 0x18, 0x18,
+};
+
+/**
+ * ntfs_are_names_equal - compare two Unicode names for equality
+ * @s1:			name to compare to @s2
+ * @s1_len:		length in Unicode characters of @s1
+ * @s2:			name to compare to @s1
+ * @s2_len:		length in Unicode characters of @s2
+ * @ic:			ignore case bool
+ * @upcase:		upcase table (only if @ic == IGNORE_CASE)
+ * @upcase_size:	length in Unicode characters of @upcase (if present)
+ *
+ * Compare the names @s1 and @s2 and return TRUE (1) if the names are
+ * identical, or FALSE (0) if they are not identical. If @ic is IGNORE_CASE,
+ * the @upcase table is used to performa a case insensitive comparison.
+ */
+int ntfs_are_names_equal(wchar_t *s1, size_t s1_len,
+		     wchar_t *s2, size_t s2_len, int ic,
+		     wchar_t *upcase, __u32 upcase_size)
+{
+	if (s1_len != s2_len)
+		return 0;
+	if (!ic)
+		return memcmp(s1, s2, s1_len << 1) ? 0: 1;
+	return ntfs_wcsncasecmp(s1, s2, s1_len, upcase, upcase_size) ? 0: 1;
+}
+
+/**
+ * ntfs_collate_names - collate two Unicode names
+ * @upcase:	upcase table (ignored if @ic is CASE_SENSITIVE)
+ * @upcase_len:	upcase table size (ignored if @ic is CASE_SENSITIVE)
+ * @name1:	first Unicode name to compare
+ * @name2:	second Unicode name to compare
+ * @ic:         either CASE_SENSITIVE or IGNORE_CASE
+ * @err_val:	if @name1 contains an invalid character return this value
+ *
+ * ntfs_collate_names collates two Unicode names and returns:
+ * 
+ *  -1 if the first name collates before the second one,
+ *   0 if the names match,
+ *   1 if the second name collates before the first one, or
+ * @ec if an invalid character is encountered in @name1 during the comparison.
+ *
+ * The following characters are considered invalid: '"', '*', '<', '>' and '?'.
+ */
+int ntfs_collate_names(wchar_t *upcase, __u32 upcase_len,
+		       wchar_t *name1, __u32 name1_len,
+		       wchar_t *name2, __u32 name2_len,
+		       int ic, int err_val)
+{
+	__u32 cnt, min_len;
+	wchar_t c1, c2;
+
+	min_len = name1_len;
+	if (min_len > name2_len)
+		min_len = name2_len;
+	for (cnt = 0; cnt < min_len; ++cnt) {
+		c1 = le16_to_cpu(*name1++);
+		c2 = le16_to_cpu(*name2++);
+		if (ic) {
+			if (c1 < upcase_len)
+				c1 = le16_to_cpu(upcase[c1]);
+			if (c2 < upcase_len)
+				c2 = le16_to_cpu(upcase[c2]);
+		}
+		if (c1 < 64 && legal_ansi_char_array[c1] & 8)
+			return err_val;
+		if (c1 < c2)
+			return -1;
+		if (c1 > c2)
+			return 1;
+		++name1;
+		++name2;
+	}
+	if (name1_len < name2_len)
+		return -1;
+	if (name1_len == name2_len)
+		return 0;
+	/* name1_len > name2_len */
+	c1 = le16_to_cpu(*name1);
+	if (c1 < 64 && legal_ansi_char_array[c1] & 8)
+		return err_val;
+	return 1;
+}
+
+/**
+ * ntfs_wcsncasecmp - compare two little endian Unicode strings, ignoring case
+ * @s1:			first string
+ * @s2:			second string
+ * @n:			maximum unicode characters to compare
+ * @upcase:		upcase table
+ * @upcase_size:	upcase table size in Unicode characters
+ *
+ * Compare the first @n characters of the Unicode strings @s1 and @s2,
+ * ignoring case. The strings in little endian format and appropriate
+ * le16_to_cpu() conversion is performed on non-little endian machines.
+ * 
+ * Each character is uppercased using the @upcase table before the comparison.
+ *
+ * The function returns an integer less than, equal to, or greater than zero
+ * if @s1 (or the first @n Unicode characters thereof) is found, respectively,
+ * to be less than, to match, or be greater than @s2.
+ */
+int ntfs_wcsncasecmp(wchar_t *s1, wchar_t *s2, size_t n,
+		     wchar_t *upcase, __u32 upcase_size)
+{
+	wchar_t c1, c2;
+	size_t i;
+
+	for (i = 0; i < n; ++i) {
+		if ((c1 = le16_to_cpu(s1[i])) < upcase_size)
+			c1 = le16_to_cpu(upcase[c1]);
+		if ((c2 = le16_to_cpu(s2[i])) < upcase_size)
+			c2 = le16_to_cpu(upcase[c2]);
+		if (c1 < c2)
+			return -1;
+		if (c1 > c2)
+			return 1;
+		if (!c1)
+			break;
+	}
+	return 0;
+}
+
diff --git a/fs/ntfs/unistr.h b/fs/ntfs/unistr.h
new file mode 100644
index 00000000000000..8b546d1378655e
--- /dev/null
+++ b/fs/ntfs/unistr.h
@@ -0,0 +1,44 @@
+/*
+ * unistr.h - Exports for unicode string handling. Part of the Linux-NTFS
+ *	      project.
+ *
+ * Copyright (c) 2000,2001 Anton Altaparmakov.
+ *
+ * This program/include file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program/include file is distributed in the hope that it will be 
+ * useful, but WITHOUT ANY WARRANTY; without even the implied warranty 
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program (in the main directory of the Linux-NTFS 
+ * distribution in the file COPYING); if not, write to the Free Software
+ * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef _LINUX_NTFS_UNISTR_H
+#define _LINUX_NTFS_UNISTR_H
+
+#include <linux/types.h>
+#include <linux/nls.h>
+
+extern const __u8 legal_ansi_char_array[0x40];
+
+int ntfs_are_names_equal(wchar_t *s1, size_t s1_len,
+			  wchar_t *s2, size_t s2_len, int ic,
+			  wchar_t *upcase, __u32 upcase_size);
+
+int ntfs_collate_names(wchar_t *upcase, __u32 upcase_len,
+		       wchar_t *name1, __u32 name1_len,
+		       wchar_t *name2, __u32 name2_len,
+		       int ic, int err_val);
+
+int ntfs_wcsncasecmp(wchar_t *s1, wchar_t *s2, size_t n,
+		     wchar_t *upcase, __u32 upcase_size);
+
+#endif /* defined _LINUX_NTFS_UNISTR_H */
+
diff --git a/fs/ntfs/util.c b/fs/ntfs/util.c
new file mode 100644
index 00000000000000..c8e18b5540dc87
--- /dev/null
+++ b/fs/ntfs/util.c
@@ -0,0 +1,265 @@
+/*
+ * util.c -  Miscellaneous support
+ *
+ * Copyright (C) 1997,1999 Martin von Löwis
+ * Copyright (C) 1997 Régis Duchesne
+ * Copyright (C) 2001 Anton Altaparmakov (AIA)
+ *
+ * The utf8 routines are copied from Python wstrop module.
+ */
+
+#include "ntfstypes.h"
+#include "struct.h"
+#include "util.h"
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <asm/div64.h>		/* For do_div(). */
+#include "support.h"
+
+/*
+ * Converts a single wide character to a sequence of utf8 bytes.
+ * The character is represented in host byte order.
+ * Returns the number of bytes, or 0 on error.
+ */
+static int to_utf8(ntfs_u16 c, unsigned char *buf)
+{
+	if (c == 0)
+		return 0; /* No support for embedded 0 runes. */
+	if (c < 0x80) {
+		if (buf)
+			buf[0] = (unsigned char)c;
+		return 1;
+	}
+	if (c < 0x800) {
+		if (buf) {
+			buf[0] = 0xc0 | (c >> 6);
+			buf[1] = 0x80 | (c & 0x3f);
+		}
+		return 2;
+	}
+	/* c < 0x10000 */
+	if (buf) {
+		buf[0] = 0xe0 | (c >> 12);
+		buf[1] = 0x80 | ((c >> 6) & 0x3f);
+		buf[2] = 0x80 | (c & 0x3f);
+	}
+	return 3;
+}
+
+/*
+ * Decodes a sequence of utf8 bytes into a single wide character.
+ * The character is returned in host byte order.
+ * Returns the number of bytes consumed, or 0 on error.
+ */
+static int from_utf8(const unsigned char *str, ntfs_u16 *c)
+{
+	int l = 0, i;
+
+	if (*str < 0x80) {
+		*c = *str;
+		return 1;
+	}
+	if (*str < 0xc0)	/* Lead byte must not be 10xxxxxx. */
+		return 0;	/* Is c0 a possible lead byte? */
+	if (*str < 0xe0) {		/* 110xxxxx */
+		*c = *str & 0x1f;
+		l = 2;
+	} else if (*str < 0xf0) {	/* 1110xxxx */
+		*c = *str & 0xf;
+		l = 3;
+	} else if (*str < 0xf8) {   	/* 11110xxx */
+		*c = *str & 7;
+		l = 4;
+	} else /* We don't support characters above 0xFFFF in NTFS. */
+		return 0;
+	for (i = 1; i < l; i++) {
+		/* All other bytes must be 10xxxxxx. */
+		if ((str[i] & 0xc0) != 0x80)
+			return 0;
+		*c <<= 6;
+		*c |= str[i] & 0x3f;
+	}
+	return l;
+}
+
+/*
+ * Converts wide string to UTF-8. Expects two in- and two out-parameters.
+ * Returns 0 on success, or error code. 
+ * The caller has to free the result string.
+ */
+static int ntfs_dupuni2utf8(ntfs_u16 *in, int in_len, char **out, int *out_len)
+{
+	int i, tmp;
+	int len8;
+	unsigned char *result;
+
+	ntfs_debug(DEBUG_NAME1, "converting l = %d\n", in_len);
+	/* Count the length of the resulting UTF-8. */
+	for (i = len8 = 0; i < in_len; i++) {
+		tmp = to_utf8(NTFS_GETU16(in + i), 0);
+		if (!tmp)
+			/* Invalid character. */
+			return -EILSEQ;
+		len8 += tmp;
+	}
+	*out = result = ntfs_malloc(len8 + 1); /* allow for zero-termination */
+	if (!result)
+		return -ENOMEM;
+	result[len8] = '\0';
+	*out_len = len8;
+	for (i = len8 = 0; i < in_len; i++)
+		len8 += to_utf8(NTFS_GETU16(in + i), result + len8);
+	ntfs_debug(DEBUG_NAME1, "result %p:%s\n", result, result);
+	return 0;
+}
+
+/*
+ * Converts an UTF-8 sequence to a wide string. Same conventions as the
+ * previous function.
+ */
+static int ntfs_duputf82uni(unsigned char* in, int in_len, ntfs_u16** out,
+		int *out_len)
+{
+	int i, tmp;
+	int len16;
+	ntfs_u16* result;
+	ntfs_u16 wtmp;
+
+	for (i = len16 = 0; i < in_len; i += tmp, len16++) {
+		tmp = from_utf8(in + i, &wtmp);
+		if (!tmp)
+			return -EILSEQ;
+	}
+	*out = result = ntfs_malloc(2 * (len16 + 1));
+	if (!result)
+		return -ENOMEM;
+	result[len16] = 0;
+	*out_len = len16;
+	for (i = len16 = 0; i < in_len; i += tmp, len16++) {
+		tmp = from_utf8(in + i, &wtmp);
+		NTFS_PUTU16(result + len16, wtmp);
+	}
+	return 0;
+}
+
+/* Encodings dispatchers. */
+int ntfs_encodeuni(ntfs_volume *vol, ntfs_u16 *in, int in_len, char **out,
+		int *out_len)
+{
+	if (vol->nls_map)
+		return ntfs_dupuni2map(vol, in, in_len, out, out_len);
+	else
+		return ntfs_dupuni2utf8(in, in_len, out, out_len);
+}
+
+int ntfs_decodeuni(ntfs_volume *vol, char *in, int in_len, ntfs_u16 **out,
+		int *out_len)
+{
+	if (vol->nls_map)
+		return ntfs_dupmap2uni(vol, in, in_len, out, out_len);
+	else
+		return ntfs_duputf82uni(in, in_len, out, out_len);
+}
+
+/* Same address space copies. */
+void ntfs_put(ntfs_io *dest, void *src, ntfs_size_t n)
+{
+	ntfs_memcpy(dest->param, src, n);
+	dest->param = (char*)dest->param + n;
+}
+
+void ntfs_get(void* dest, ntfs_io *src, ntfs_size_t n)
+{
+	ntfs_memcpy(dest, src->param, n);
+	src->param = (char*)src->param + n;
+}
+
+void *ntfs_calloc(int size)
+{
+	void *result = ntfs_malloc(size);
+	if (result)
+		ntfs_bzero(result, size);
+	return result;
+}
+
+/* Copy len ascii characters from from to to. :) */
+void ntfs_ascii2uni(short int *to, char *from, int len)
+{
+	int i;
+
+	for (i = 0; i < len; i++)
+		NTFS_PUTU16(to + i, from[i]);
+	to[i] = 0;
+}
+
+/* strncmp for Unicode strings. */
+int ntfs_uni_strncmp(short int* a, short int *b, int n)
+{
+	int i;
+
+	for(i = 0; i < n; i++)
+	{
+		if (NTFS_GETU16(a + i) < NTFS_GETU16(b + i))
+			return -1;
+		if (NTFS_GETU16(b + i) < NTFS_GETU16(a + i))
+			return 1;
+		if (NTFS_GETU16(a + i) == 0)
+			break;
+	}
+	return 0;
+}
+
+/* strncmp between Unicode and ASCII strings. */
+int ntfs_ua_strncmp(short int* a, char* b, int n)
+{
+	int i;
+
+	for (i = 0; i < n; i++)	{
+		if(NTFS_GETU16(a + i) < b[i])
+			return -1;
+		if(b[i] < NTFS_GETU16(a + i))
+			return 1;
+		if (b[i] == 0)
+			return 0;
+	}
+	return 0;
+}
+
+#define NTFS_TIME_OFFSET ((ntfs_time64_t)(369*365 + 89) * 24 * 3600 * 10000000)
+
+/* Convert the NT UTC (based 1.1.1601, in hundred nanosecond units)
+ * into Unix UTC (based 1.1.1970, in seconds). */
+ntfs_time_t ntfs_ntutc2unixutc(ntfs_time64_t ntutc)
+{
+	/* Subtract the NTFS time offset, then convert to 1s intervals. */
+	ntfs_time64_t t = ntutc - NTFS_TIME_OFFSET;
+	do_div(t, 10000000);
+	return (ntfs_time_t)t;
+}
+
+/* Convert the Unix UTC into NT UTC. */
+ntfs_time64_t ntfs_unixutc2ntutc(ntfs_time_t t)
+{
+	/* Convert to 100ns intervals and then add the NTFS time offset. */
+	return (ntfs_time64_t)t * 10000000 + NTFS_TIME_OFFSET;
+}
+
+#undef NTFS_TIME_OFFSET
+
+/* Fill index name. */
+void ntfs_indexname(char *buf, int type)
+{
+	char hex[] = "0123456789ABCDEF";
+	int index;
+	*buf++ = '$';
+	*buf++ = 'I';
+	for (index = 24; index > 0; index -= 4)
+		if ((0xF << index) & type)
+			break;
+	while (index >= 0) {
+		*buf++ = hex[(type >> index) & 0xF];
+		index -= 4;
+	}
+	*buf = '\0';
+}
+
diff --git a/fs/ntfs/util.h b/fs/ntfs/util.h
new file mode 100644
index 00000000000000..5d21bb7fc9ac06
--- /dev/null
+++ b/fs/ntfs/util.h
@@ -0,0 +1,56 @@
+/*
+ * util.h - Header file for util.c
+ *
+ * Copyright (C) 1997 Régis Duchesne
+ * Copyright (C) 2001 Anton Altaparmakov (AIA)
+ */
+
+/* The first 16 inodes correspond to NTFS special files. */
+typedef enum {
+	FILE_Mft	= 0,
+	FILE_MftMirr	= 1,
+	FILE_LogFile	= 2,
+	FILE_Volume	= 3,
+	FILE_AttrDef	= 4,
+	FILE_root	= 5,
+	FILE_BitMap	= 6,
+	FILE_Boot	= 7,
+	FILE_BadClus	= 8,
+	FILE_Secure	= 9,
+	FILE_UpCase	= 10,
+	FILE_Extend	= 11,
+	FILE_Reserved12	= 12,
+	FILE_Reserved13	= 13,
+	FILE_Reserved14	= 14,
+	FILE_Reserved15	= 15,
+} NTFS_SYSTEM_FILES;
+ 
+/* Memory management */
+void *ntfs_calloc(int size);
+
+/* String operations */
+/*  Copy Unicode <-> ASCII */
+void ntfs_ascii2uni(short int *to, char *from, int len);
+
+/*  Comparison */
+int ntfs_uni_strncmp(short int* a, short int *b, int n);
+int ntfs_ua_strncmp(short int* a, char* b, int n);
+
+/* Same address space copies */
+void ntfs_put(ntfs_io *dest, void *src, ntfs_size_t n);
+void ntfs_get(void* dest, ntfs_io *src, ntfs_size_t n);
+
+/* Charset conversion */
+int ntfs_encodeuni(ntfs_volume *vol, ntfs_u16 *in, int in_len, char **out,
+		   int *out_len);
+int ntfs_decodeuni(ntfs_volume *vol, char *in, int in_len, ntfs_u16 **out,
+		   int *out_len);
+
+/* Time conversion */
+/*  NT <-> Unix */
+ntfs_time_t ntfs_ntutc2unixutc(ntfs_time64_t ntutc);
+ntfs_time64_t ntfs_unixutc2ntutc(ntfs_time_t t);
+
+/* Attribute names */
+void ntfs_indexname(char *buf, int type);
+
diff --git a/fs/open.c b/fs/open.c
new file mode 100644
index 00000000000000..512b60f58de3ff
--- /dev/null
+++ b/fs/open.c
@@ -0,0 +1,918 @@
+/*
+ *  linux/fs/open.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ */
+
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/utime.h>
+#include <linux/file.h>
+#include <linux/smp_lock.h>
+#include <linux/quotaops.h>
+#include <linux/dnotify.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/tty.h>
+#include <linux/iobuf.h>
+
+#include <asm/uaccess.h>
+
+#define special_file(m) (S_ISCHR(m)||S_ISBLK(m)||S_ISFIFO(m)||S_ISSOCK(m))
+
+int vfs_statfs(struct super_block *sb, struct statfs *buf)
+{
+	int retval = -ENODEV;
+
+	if (sb) {
+		retval = -ENOSYS;
+		if (sb->s_op && sb->s_op->statfs) {
+			memset(buf, 0, sizeof(struct statfs));
+			lock_kernel();
+			retval = sb->s_op->statfs(sb, buf);
+			unlock_kernel();
+		}
+	}
+	return retval;
+}
+
+
+asmlinkage long sys_statfs(const char * path, struct statfs * buf)
+{
+	struct nameidata nd;
+	int error;
+
+	error = user_path_walk(path, &nd);
+	if (!error) {
+		struct statfs tmp;
+		error = vfs_statfs(nd.dentry->d_inode->i_sb, &tmp);
+		if (!error && copy_to_user(buf, &tmp, sizeof(struct statfs)))
+			error = -EFAULT;
+		path_release(&nd);
+	}
+	return error;
+}
+
+asmlinkage long sys_fstatfs(unsigned int fd, struct statfs * buf)
+{
+	struct file * file;
+	struct statfs tmp;
+	int error;
+
+	error = -EBADF;
+	file = fget(fd);
+	if (!file)
+		goto out;
+	error = vfs_statfs(file->f_dentry->d_inode->i_sb, &tmp);
+	if (!error && copy_to_user(buf, &tmp, sizeof(struct statfs)))
+		error = -EFAULT;
+	fput(file);
+out:
+	return error;
+}
+
+/*
+ * Install a file pointer in the fd array.  
+ *
+ * The VFS is full of places where we drop the files lock between
+ * setting the open_fds bitmap and installing the file in the file
+ * array.  At any such point, we are vulnerable to a dup2() race
+ * installing a file in the array before us.  We need to detect this and
+ * fput() the struct file we are about to overwrite in this case.
+ *
+ * It should never happen - if we allow dup2() do it, _really_ bad things
+ * will follow.
+ */
+
+void fd_install(unsigned int fd, struct file * file)
+{
+	struct files_struct *files = current->files;
+	
+	write_lock(&files->file_lock);
+	if (files->fd[fd])
+		BUG();
+	files->fd[fd] = file;
+	write_unlock(&files->file_lock);
+}
+
+int do_truncate(struct dentry *dentry, loff_t length)
+{
+	struct inode *inode = dentry->d_inode;
+	int error;
+	struct iattr newattrs;
+
+	/* Not pretty: "inode->i_size" shouldn't really be signed. But it is. */
+	if (length < 0)
+		return -EINVAL;
+
+	down_write(&inode->i_alloc_sem);
+	down(&inode->i_sem);
+	newattrs.ia_size = length;
+	newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME;
+	error = notify_change(dentry, &newattrs);
+	up(&inode->i_sem);
+	up_write(&inode->i_alloc_sem);
+	return error;
+}
+
+static inline long do_sys_truncate(const char * path, loff_t length)
+{
+	struct nameidata nd;
+	struct inode * inode;
+	int error;
+
+	error = -EINVAL;
+	if (length < 0)	/* sorry, but loff_t says... */
+		goto out;
+
+	error = user_path_walk(path, &nd);
+	if (error)
+		goto out;
+	inode = nd.dentry->d_inode;
+
+	/* For directories it's -EISDIR, for other non-regulars - -EINVAL */
+	error = -EISDIR;
+	if (S_ISDIR(inode->i_mode))
+		goto dput_and_out;
+
+	error = -EINVAL;
+	if (!S_ISREG(inode->i_mode))
+		goto dput_and_out;
+
+	error = permission(inode,MAY_WRITE);
+	if (error)
+		goto dput_and_out;
+
+	error = -EROFS;
+	if (IS_RDONLY(inode))
+		goto dput_and_out;
+
+	error = -EPERM;
+	if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
+		goto dput_and_out;
+
+	/*
+	 * Make sure that there are no leases.
+	 */
+	error = get_lease(inode, FMODE_WRITE);
+	if (error)
+		goto dput_and_out;
+
+	error = get_write_access(inode);
+	if (error)
+		goto dput_and_out;
+
+	error = locks_verify_truncate(inode, NULL, length);
+	if (!error) {
+		DQUOT_INIT(inode);
+		error = do_truncate(nd.dentry, length);
+	}
+	put_write_access(inode);
+
+dput_and_out:
+	path_release(&nd);
+out:
+	return error;
+}
+
+asmlinkage long sys_truncate(const char * path, unsigned long length)
+{
+	/* on 32-bit boxen it will cut the range 2^31--2^32-1 off */
+	return do_sys_truncate(path, (long)length);
+}
+
+static inline long do_sys_ftruncate(unsigned int fd, loff_t length, int small)
+{
+	struct inode * inode;
+	struct dentry *dentry;
+	struct file * file;
+	int error;
+
+	error = -EINVAL;
+	if (length < 0)
+		goto out;
+	error = -EBADF;
+	file = fget(fd);
+	if (!file)
+		goto out;
+
+	/* explicitly opened as large or we are on 64-bit box */
+	if (file->f_flags & O_LARGEFILE)
+		small = 0;
+
+	dentry = file->f_dentry;
+	inode = dentry->d_inode;
+	error = -EINVAL;
+	if (!S_ISREG(inode->i_mode) || !(file->f_mode & FMODE_WRITE))
+		goto out_putf;
+
+	error = -EINVAL;
+	/* Cannot ftruncate over 2^31 bytes without large file support */
+	if (small && length > MAX_NON_LFS)
+		goto out_putf;
+
+	error = -EPERM;
+	if (IS_APPEND(inode))
+		goto out_putf;
+
+	error = locks_verify_truncate(inode, file, length);
+	if (!error)
+		error = do_truncate(dentry, length);
+out_putf:
+	fput(file);
+out:
+	return error;
+}
+
+asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length)
+{
+	return do_sys_ftruncate(fd, length, 1);
+}
+
+/* LFS versions of truncate are only needed on 32 bit machines */
+#if BITS_PER_LONG == 32
+asmlinkage long sys_truncate64(const char * path, loff_t length)
+{
+	return do_sys_truncate(path, length);
+}
+
+asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length)
+{
+	return do_sys_ftruncate(fd, length, 0);
+}
+#endif
+
+#if !(defined(__alpha__) || defined(__ia64__))
+
+/*
+ * sys_utime() can be implemented in user-level using sys_utimes().
+ * Is this for backwards compatibility?  If so, why not move it
+ * into the appropriate arch directory (for those architectures that
+ * need it).
+ */
+
+/* If times==NULL, set access and modification to current time,
+ * must be owner or have write permission.
+ * Else, update from *times, must be owner or super user.
+ */
+asmlinkage long sys_utime(char * filename, struct utimbuf * times)
+{
+	int error;
+	struct nameidata nd;
+	struct inode * inode;
+	struct iattr newattrs;
+
+	error = user_path_walk(filename, &nd);
+	if (error)
+		goto out;
+	inode = nd.dentry->d_inode;
+
+	error = -EROFS;
+	if (IS_RDONLY(inode))
+		goto dput_and_out;
+
+	/* Don't worry, the checks are done in inode_change_ok() */
+	newattrs.ia_valid = ATTR_CTIME | ATTR_MTIME | ATTR_ATIME;
+	if (times) {
+		error = -EPERM;
+		if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
+			goto dput_and_out;
+		error = get_user(newattrs.ia_atime, &times->actime);
+		if (!error) 
+			error = get_user(newattrs.ia_mtime, &times->modtime);
+		if (error)
+			goto dput_and_out;
+
+		newattrs.ia_valid |= ATTR_ATIME_SET | ATTR_MTIME_SET;
+	} else {
+		error = -EACCES;
+		if (IS_IMMUTABLE(inode))
+			goto dput_and_out;
+		if (current->fsuid != inode->i_uid &&
+		    (error = permission(inode,MAY_WRITE)) != 0)
+			goto dput_and_out;
+	}
+	error = notify_change(nd.dentry, &newattrs);
+dput_and_out:
+	path_release(&nd);
+out:
+	return error;
+}
+
+#endif
+
+/* If times==NULL, set access and modification to current time,
+ * must be owner or have write permission.
+ * Else, update from *times, must be owner or super user.
+ */
+asmlinkage long sys_utimes(char * filename, struct timeval * utimes)
+{
+	int error;
+	struct nameidata nd;
+	struct inode * inode;
+	struct iattr newattrs;
+
+	error = user_path_walk(filename, &nd);
+
+	if (error)
+		goto out;
+	inode = nd.dentry->d_inode;
+
+	error = -EROFS;
+	if (IS_RDONLY(inode))
+		goto dput_and_out;
+
+	/* Don't worry, the checks are done in inode_change_ok() */
+	newattrs.ia_valid = ATTR_CTIME | ATTR_MTIME | ATTR_ATIME;
+	if (utimes) {
+		struct timeval times[2];
+		error = -EPERM;
+		if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
+			goto dput_and_out;
+		error = -EFAULT;
+		if (copy_from_user(&times, utimes, sizeof(times)))
+			goto dput_and_out;
+		newattrs.ia_atime = times[0].tv_sec;
+		newattrs.ia_mtime = times[1].tv_sec;
+		newattrs.ia_valid |= ATTR_ATIME_SET | ATTR_MTIME_SET;
+	} else {
+		error = -EACCES;
+		if (IS_IMMUTABLE(inode))
+			goto dput_and_out;
+
+		if (current->fsuid != inode->i_uid &&
+		    (error = permission(inode,MAY_WRITE)) != 0)
+			goto dput_and_out;
+	}
+	error = notify_change(nd.dentry, &newattrs);
+dput_and_out:
+	path_release(&nd);
+out:
+	return error;
+}
+
+/*
+ * access() needs to use the real uid/gid, not the effective uid/gid.
+ * We do this by temporarily clearing all FS-related capabilities and
+ * switching the fsuid/fsgid around to the real ones.
+ */
+asmlinkage long sys_access(const char * filename, int mode)
+{
+	struct nameidata nd;
+	int old_fsuid, old_fsgid;
+	kernel_cap_t old_cap;
+	int res;
+
+	if (mode & ~S_IRWXO)	/* where's F_OK, X_OK, W_OK, R_OK? */
+		return -EINVAL;
+
+	old_fsuid = current->fsuid;
+	old_fsgid = current->fsgid;
+	old_cap = current->cap_effective;
+
+	current->fsuid = current->uid;
+	current->fsgid = current->gid;
+
+	/* Clear the capabilities if we switch to a non-root user */
+	if (current->uid)
+		cap_clear(current->cap_effective);
+	else
+		current->cap_effective = current->cap_permitted;
+
+	res = user_path_walk(filename, &nd);
+	if (!res) {
+		res = permission(nd.dentry->d_inode, mode);
+		/* SuS v2 requires we report a read only fs too */
+		if(!res && (mode & S_IWOTH) && IS_RDONLY(nd.dentry->d_inode)
+		   && !special_file(nd.dentry->d_inode->i_mode))
+			res = -EROFS;
+		path_release(&nd);
+	}
+
+	current->fsuid = old_fsuid;
+	current->fsgid = old_fsgid;
+	current->cap_effective = old_cap;
+
+	return res;
+}
+
+asmlinkage long sys_chdir(const char * filename)
+{
+	int error;
+	struct nameidata nd;
+
+	error = __user_walk(filename,LOOKUP_POSITIVE|LOOKUP_FOLLOW|LOOKUP_DIRECTORY,&nd);
+	if (error)
+		goto out;
+
+	error = permission(nd.dentry->d_inode,MAY_EXEC);
+	if (error)
+		goto dput_and_out;
+
+	set_fs_pwd(current->fs, nd.mnt, nd.dentry);
+
+dput_and_out:
+	path_release(&nd);
+out:
+	return error;
+}
+
+asmlinkage long sys_fchdir(unsigned int fd)
+{
+	struct file *file;
+	struct dentry *dentry;
+	struct inode *inode;
+	struct vfsmount *mnt;
+	int error;
+
+	error = -EBADF;
+	file = fget(fd);
+	if (!file)
+		goto out;
+
+	dentry = file->f_dentry;
+	mnt = file->f_vfsmnt;
+	inode = dentry->d_inode;
+
+	error = -ENOTDIR;
+	if (!S_ISDIR(inode->i_mode))
+		goto out_putf;
+
+	error = permission(inode, MAY_EXEC);
+	if (!error)
+		set_fs_pwd(current->fs, mnt, dentry);
+out_putf:
+	fput(file);
+out:
+	return error;
+}
+
+asmlinkage long sys_chroot(const char * filename)
+{
+	int error;
+	struct nameidata nd;
+
+	error = __user_walk(filename, LOOKUP_POSITIVE | LOOKUP_FOLLOW |
+		      LOOKUP_DIRECTORY | LOOKUP_NOALT, &nd);
+	if (error)
+		goto out;
+
+	error = permission(nd.dentry->d_inode,MAY_EXEC);
+	if (error)
+		goto dput_and_out;
+
+	error = -EPERM;
+	if (!capable(CAP_SYS_CHROOT))
+		goto dput_and_out;
+
+	set_fs_root(current->fs, nd.mnt, nd.dentry);
+	set_fs_altroot();
+	error = 0;
+dput_and_out:
+	path_release(&nd);
+out:
+	return error;
+}
+
+asmlinkage long sys_fchmod(unsigned int fd, mode_t mode)
+{
+	struct inode * inode;
+	struct dentry * dentry;
+	struct file * file;
+	int err = -EBADF;
+	struct iattr newattrs;
+
+	file = fget(fd);
+	if (!file)
+		goto out;
+
+	dentry = file->f_dentry;
+	inode = dentry->d_inode;
+
+	err = -EROFS;
+	if (IS_RDONLY(inode))
+		goto out_putf;
+	err = -EPERM;
+	if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
+		goto out_putf;
+	if (mode == (mode_t) -1)
+		mode = inode->i_mode;
+	newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO);
+	newattrs.ia_valid = ATTR_MODE | ATTR_CTIME;
+	err = notify_change(dentry, &newattrs);
+
+out_putf:
+	fput(file);
+out:
+	return err;
+}
+
+asmlinkage long sys_chmod(const char * filename, mode_t mode)
+{
+	struct nameidata nd;
+	struct inode * inode;
+	int error;
+	struct iattr newattrs;
+
+	error = user_path_walk(filename, &nd);
+	if (error)
+		goto out;
+	inode = nd.dentry->d_inode;
+
+	error = -EROFS;
+	if (IS_RDONLY(inode))
+		goto dput_and_out;
+
+	error = -EPERM;
+	if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
+		goto dput_and_out;
+
+	if (mode == (mode_t) -1)
+		mode = inode->i_mode;
+	newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO);
+	newattrs.ia_valid = ATTR_MODE | ATTR_CTIME;
+	error = notify_change(nd.dentry, &newattrs);
+
+dput_and_out:
+	path_release(&nd);
+out:
+	return error;
+}
+
+static int chown_common(struct dentry * dentry, uid_t user, gid_t group)
+{
+	struct inode * inode;
+	int error;
+	struct iattr newattrs;
+
+	error = -ENOENT;
+	if (!(inode = dentry->d_inode)) {
+		printk(KERN_ERR "chown_common: NULL inode\n");
+		goto out;
+	}
+	error = -EROFS;
+	if (IS_RDONLY(inode))
+		goto out;
+	error = -EPERM;
+	if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
+		goto out;
+	if (user == (uid_t) -1)
+		user = inode->i_uid;
+	if (group == (gid_t) -1)
+		group = inode->i_gid;
+	newattrs.ia_mode = inode->i_mode;
+	newattrs.ia_uid = user;
+	newattrs.ia_gid = group;
+	newattrs.ia_valid =  ATTR_UID | ATTR_GID | ATTR_CTIME;
+	/*
+	 * If the user or group of a non-directory has been changed by a
+	 * non-root user, remove the setuid bit.
+	 * 19981026	David C Niemi <niemi@tux.org>
+	 *
+	 * Changed this to apply to all users, including root, to avoid
+	 * some races. This is the behavior we had in 2.0. The check for
+	 * non-root was definitely wrong for 2.2 anyway, as it should
+	 * have been using CAP_FSETID rather than fsuid -- 19990830 SD.
+	 */
+	if ((inode->i_mode & S_ISUID) == S_ISUID &&
+		!S_ISDIR(inode->i_mode))
+	{
+		newattrs.ia_mode &= ~S_ISUID;
+		newattrs.ia_valid |= ATTR_MODE;
+	}
+	/*
+	 * Likewise, if the user or group of a non-directory has been changed
+	 * by a non-root user, remove the setgid bit UNLESS there is no group
+	 * execute bit (this would be a file marked for mandatory locking).
+	 * 19981026	David C Niemi <niemi@tux.org>
+	 *
+	 * Removed the fsuid check (see the comment above) -- 19990830 SD.
+	 */
+	if (((inode->i_mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP)) 
+		&& !S_ISDIR(inode->i_mode))
+	{
+		newattrs.ia_mode &= ~S_ISGID;
+		newattrs.ia_valid |= ATTR_MODE;
+	}
+	error = notify_change(dentry, &newattrs);
+out:
+	return error;
+}
+
+asmlinkage long sys_chown(const char * filename, uid_t user, gid_t group)
+{
+	struct nameidata nd;
+	int error;
+
+	error = user_path_walk(filename, &nd);
+	if (!error) {
+		error = chown_common(nd.dentry, user, group);
+		path_release(&nd);
+	}
+	return error;
+}
+
+asmlinkage long sys_lchown(const char * filename, uid_t user, gid_t group)
+{
+	struct nameidata nd;
+	int error;
+
+	error = user_path_walk_link(filename, &nd);
+	if (!error) {
+		error = chown_common(nd.dentry, user, group);
+		path_release(&nd);
+	}
+	return error;
+}
+
+
+asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group)
+{
+	struct file * file;
+	int error = -EBADF;
+
+	file = fget(fd);
+	if (file) {
+		error = chown_common(file->f_dentry, user, group);
+		fput(file);
+	}
+	return error;
+}
+
+/*
+ * Note that while the flag value (low two bits) for sys_open means:
+ *	00 - read-only
+ *	01 - write-only
+ *	10 - read-write
+ *	11 - special
+ * it is changed into
+ *	00 - no permissions needed
+ *	01 - read-permission
+ *	10 - write-permission
+ *	11 - read-write
+ * for the internal routines (ie open_namei()/follow_link() etc). 00 is
+ * used by symlinks.
+ */
+struct file *filp_open(const char * filename, int flags, int mode)
+{
+	int namei_flags, error;
+	struct nameidata nd;
+
+	namei_flags = flags;
+	if ((namei_flags+1) & O_ACCMODE)
+		namei_flags++;
+	if (namei_flags & O_TRUNC)
+		namei_flags |= 2;
+
+	error = open_namei(filename, namei_flags, mode, &nd);
+	if (!error)
+		return dentry_open(nd.dentry, nd.mnt, flags);
+
+	return ERR_PTR(error);
+}
+
+struct file *dentry_open(struct dentry *dentry, struct vfsmount *mnt, int flags)
+{
+	struct file * f;
+	struct inode *inode;
+	static LIST_HEAD(kill_list);
+	int error;
+
+	error = -ENFILE;
+	f = get_empty_filp();
+	if (!f)
+		goto cleanup_dentry;
+	f->f_flags = flags;
+	f->f_mode = (flags+1) & O_ACCMODE;
+	inode = dentry->d_inode;
+	if (f->f_mode & FMODE_WRITE) {
+		error = get_write_access(inode);
+		if (error)
+			goto cleanup_file;
+	}
+
+	f->f_dentry = dentry;
+	f->f_vfsmnt = mnt;
+	f->f_pos = 0;
+	f->f_reada = 0;
+	f->f_op = fops_get(inode->i_fop);
+	file_move(f, &inode->i_sb->s_files);
+
+	/* preallocate kiobuf for O_DIRECT */
+	f->f_iobuf = NULL;
+	f->f_iobuf_lock = 0;
+	if (f->f_flags & O_DIRECT) {
+		error = alloc_kiovec(1, &f->f_iobuf);
+		if (error)
+			goto cleanup_all;
+	}
+
+	if (f->f_op && f->f_op->open) {
+		error = f->f_op->open(inode,f);
+		if (error)
+			goto cleanup_all;
+	}
+	f->f_flags &= ~(O_CREAT | O_EXCL | O_NOCTTY | O_TRUNC);
+
+	return f;
+
+cleanup_all:
+	if (f->f_iobuf)
+		free_kiovec(1, &f->f_iobuf);
+	fops_put(f->f_op);
+	if (f->f_mode & FMODE_WRITE)
+		put_write_access(inode);
+	file_move(f, &kill_list); /* out of the way.. */
+	f->f_dentry = NULL;
+	f->f_vfsmnt = NULL;
+cleanup_file:
+	put_filp(f);
+cleanup_dentry:
+	dput(dentry);
+	mntput(mnt);
+	return ERR_PTR(error);
+}
+
+/*
+ * Find an empty file descriptor entry, and mark it busy.
+ */
+int get_unused_fd(void)
+{
+	struct files_struct * files = current->files;
+	int fd, error;
+
+  	error = -EMFILE;
+	write_lock(&files->file_lock);
+
+repeat:
+ 	fd = find_next_zero_bit(files->open_fds, 
+				files->max_fdset, 
+				files->next_fd);
+
+	/*
+	 * N.B. For clone tasks sharing a files structure, this test
+	 * will limit the total number of files that can be opened.
+	 */
+	if (fd >= current->rlim[RLIMIT_NOFILE].rlim_cur)
+		goto out;
+
+	/* Do we need to expand the fdset array? */
+	if (fd >= files->max_fdset) {
+		error = expand_fdset(files, fd);
+		if (!error) {
+			error = -EMFILE;
+			goto repeat;
+		}
+		goto out;
+	}
+	
+	/* 
+	 * Check whether we need to expand the fd array.
+	 */
+	if (fd >= files->max_fds) {
+		error = expand_fd_array(files, fd);
+		if (!error) {
+			error = -EMFILE;
+			goto repeat;
+		}
+		goto out;
+	}
+
+	FD_SET(fd, files->open_fds);
+	FD_CLR(fd, files->close_on_exec);
+	files->next_fd = fd + 1;
+#if 1
+	/* Sanity check */
+	if (files->fd[fd] != NULL) {
+		printk(KERN_WARNING "get_unused_fd: slot %d not NULL!\n", fd);
+		files->fd[fd] = NULL;
+	}
+#endif
+	error = fd;
+
+out:
+	write_unlock(&files->file_lock);
+	return error;
+}
+
+asmlinkage long sys_open(const char * filename, int flags, int mode)
+{
+	char * tmp;
+	int fd, error;
+
+#if BITS_PER_LONG != 32
+	flags |= O_LARGEFILE;
+#endif
+	tmp = getname(filename);
+	fd = PTR_ERR(tmp);
+	if (!IS_ERR(tmp)) {
+		fd = get_unused_fd();
+		if (fd >= 0) {
+			struct file *f = filp_open(tmp, flags, mode);
+			error = PTR_ERR(f);
+			if (IS_ERR(f))
+				goto out_error;
+			fd_install(fd, f);
+		}
+out:
+		putname(tmp);
+	}
+	return fd;
+
+out_error:
+	put_unused_fd(fd);
+	fd = error;
+	goto out;
+}
+
+#ifndef __alpha__
+
+/*
+ * For backward compatibility?  Maybe this should be moved
+ * into arch/i386 instead?
+ */
+asmlinkage long sys_creat(const char * pathname, int mode)
+{
+	return sys_open(pathname, O_CREAT | O_WRONLY | O_TRUNC, mode);
+}
+
+#endif
+
+/*
+ * "id" is the POSIX thread ID. We use the
+ * files pointer for this..
+ */
+int filp_close(struct file *filp, fl_owner_t id)
+{
+	int retval;
+
+	if (!file_count(filp)) {
+		printk(KERN_ERR "VFS: Close: file count is 0\n");
+		return 0;
+	}
+	retval = 0;
+	if (filp->f_op && filp->f_op->flush) {
+		lock_kernel();
+		retval = filp->f_op->flush(filp);
+		unlock_kernel();
+	}
+	dnotify_flush(filp, id);
+	locks_remove_posix(filp, id);
+	fput(filp);
+	return retval;
+}
+
+/*
+ * Careful here! We test whether the file pointer is NULL before
+ * releasing the fd. This ensures that one clone task can't release
+ * an fd while another clone is opening it.
+ */
+asmlinkage long sys_close(unsigned int fd)
+{
+	struct file * filp;
+	struct files_struct *files = current->files;
+
+	write_lock(&files->file_lock);
+	if (fd >= files->max_fds)
+		goto out_unlock;
+	filp = files->fd[fd];
+	if (!filp)
+		goto out_unlock;
+	files->fd[fd] = NULL;
+	FD_CLR(fd, files->close_on_exec);
+	__put_unused_fd(files, fd);
+	write_unlock(&files->file_lock);
+	return filp_close(filp, files);
+
+out_unlock:
+	write_unlock(&files->file_lock);
+	return -EBADF;
+}
+
+/*
+ * This routine simulates a hangup on the tty, to arrange that users
+ * are given clean terminals at login time.
+ */
+asmlinkage long sys_vhangup(void)
+{
+	if (capable(CAP_SYS_TTY_CONFIG)) {
+		tty_vhangup(current->tty);
+		return 0;
+	}
+	return -EPERM;
+}
+
+/*
+ * Called when an inode is about to be open.
+ * We use this to disallow opening RW large files on 32bit systems if
+ * the caller didn't specify O_LARGEFILE.  On 64bit systems we force
+ * on this flag in sys_open.
+ */
+int generic_file_open(struct inode * inode, struct file * filp)
+{
+	if (!(filp->f_flags & O_LARGEFILE) && inode->i_size > MAX_NON_LFS)
+		return -EFBIG;
+	return 0;
+}
+
+EXPORT_SYMBOL(generic_file_open);
diff --git a/fs/openpromfs/Makefile b/fs/openpromfs/Makefile
new file mode 100644
index 00000000000000..f9d8cd339c3ad1
--- /dev/null
+++ b/fs/openpromfs/Makefile
@@ -0,0 +1,15 @@
+#
+# Makefile for the Linux minix filesystem routines.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile.
+
+O_TARGET := openpromfs.o
+
+obj-y   := inode.o
+obj-m   := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/openpromfs/inode.c b/fs/openpromfs/inode.c
new file mode 100644
index 00000000000000..8822345b78b70a
--- /dev/null
+++ b/fs/openpromfs/inode.c
@@ -0,0 +1,1063 @@
+/* $Id: inode.c,v 1.15 2001/11/12 09:43:39 davem Exp $
+ * openpromfs.c: /proc/openprom handling routines
+ *
+ * Copyright (C) 1996-1999 Jakub Jelinek  (jakub@redhat.com)
+ * Copyright (C) 1998      Eddie C. Dost  (ecd@skynet.be)
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/fs.h>
+#include <linux/openprom_fs.h>
+#include <linux/locks.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/smp_lock.h>
+
+#include <asm/openprom.h>
+#include <asm/oplib.h>
+#include <asm/uaccess.h>
+
+#define ALIASES_NNODES 64
+
+typedef struct {
+	u16	parent;
+	u16	next;
+	u16	child;
+	u16	first_prop;
+	u32	node;
+} openpromfs_node;
+
+typedef struct {
+#define OPP_STRING	0x10
+#define OPP_STRINGLIST	0x20
+#define OPP_BINARY	0x40
+#define OPP_HEXSTRING	0x80
+#define OPP_DIRTY	0x01
+#define OPP_QUOTED	0x02
+#define OPP_NOTQUOTED	0x04
+#define OPP_ASCIIZ	0x08
+	u32	flag;
+	u32	alloclen;
+	u32	len;
+	char	*value;
+	char	name[8];
+} openprom_property;
+
+static openpromfs_node *nodes = NULL;
+static int alloced = 0;
+static u16 last_node = 0;
+static u16 first_prop = 0;
+static u16 options = 0xffff;
+static u16 aliases = 0xffff;
+static int aliases_nodes = 0;
+static char *alias_names [ALIASES_NNODES];
+
+#define OPENPROM_ROOT_INO	16
+#define OPENPROM_FIRST_INO	OPENPROM_ROOT_INO
+#define NODE(ino) nodes[ino - OPENPROM_FIRST_INO]
+#define NODE2INO(node) (node + OPENPROM_FIRST_INO)
+#define NODEP2INO(no) (no + OPENPROM_FIRST_INO + last_node)
+
+static int openpromfs_create (struct inode *, struct dentry *, int);
+static int openpromfs_readdir(struct file *, void *, filldir_t);
+static struct dentry *openpromfs_lookup(struct inode *, struct dentry *dentry);
+static int openpromfs_unlink (struct inode *, struct dentry *dentry);
+
+static ssize_t nodenum_read(struct file *file, char *buf,
+			    size_t count, loff_t *ppos)
+{
+	struct inode *inode = file->f_dentry->d_inode;
+	loff_t pos = *ppos;
+	char buffer[10];
+	
+	if (count < 0 || !inode->u.generic_ip)
+		return -EINVAL;
+	sprintf (buffer, "%8.8x\n", (u32)(long)(inode->u.generic_ip));
+	if (pos != (unsigned)pos || pos >= 9)
+		return 0;
+	if (count > 9 - pos)
+		count = 9 - pos;
+	copy_to_user(buf, buffer + pos, count);
+	*ppos = pos + count;
+	return count;
+}
+
+static ssize_t property_read(struct file *filp, char *buf,
+			     size_t count, loff_t *ppos)
+{
+	struct inode *inode = filp->f_dentry->d_inode;
+	loff_t pos = *ppos;
+	int i, j, k;
+	u32 node;
+	char *p, *s;
+	u32 *q;
+	openprom_property *op;
+	char buffer[64];
+	
+	if (pos < 0 || pos >= 0xffffff)
+		return -EINVAL;
+	if (!filp->private_data) {
+		node = nodes[(u16)((long)inode->u.generic_ip)].node;
+		i = ((u32)(long)inode->u.generic_ip) >> 16;
+		if ((u16)((long)inode->u.generic_ip) == aliases) {
+			if (i >= aliases_nodes)
+				p = 0;
+			else
+				p = alias_names [i];
+		} else
+			for (p = prom_firstprop (node, buffer);
+			     i && p && *p;
+			     p = prom_nextprop (node, p, buffer), i--)
+				/* nothing */ ;
+		if (!p || !*p)
+			return -EIO;
+		i = prom_getproplen (node, p);
+		if (i < 0) {
+			if ((u16)((long)inode->u.generic_ip) == aliases)
+				i = 0;
+			else
+				return -EIO;
+		}
+		k = i;
+		if (i < 64) i = 64;
+		filp->private_data = kmalloc (sizeof (openprom_property)
+					      + (j = strlen (p)) + 2 * i,
+					      GFP_KERNEL);
+		if (!filp->private_data)
+			return -ENOMEM;
+		op = (openprom_property *)filp->private_data;
+		op->flag = 0;
+		op->alloclen = 2 * i;
+		strcpy (op->name, p);
+		op->value = (char *)(((unsigned long)(op->name + j + 4)) & ~3);
+		op->len = k;
+		if (k && prom_getproperty (node, p, op->value, i) < 0)
+			return -EIO;
+		op->value [k] = 0;
+		if (k) {
+			for (s = 0, p = op->value; p < op->value + k; p++) {
+				if ((*p >= ' ' && *p <= '~') || *p == '\n') {
+					op->flag |= OPP_STRING;
+					s = p;
+					continue;
+				}
+				if (p > op->value && !*p && s == p - 1) {
+					if (p < op->value + k - 1)
+						op->flag |= OPP_STRINGLIST;
+					else
+						op->flag |= OPP_ASCIIZ;
+					continue;
+				}
+				if (k == 1 && !*p) {
+					op->flag |= (OPP_STRING|OPP_ASCIIZ);
+					break;
+				}
+				op->flag &= ~(OPP_STRING|OPP_STRINGLIST);
+				if (k & 3)
+					op->flag |= OPP_HEXSTRING;
+				else
+					op->flag |= OPP_BINARY;
+				break;
+			}
+			if (op->flag & OPP_STRINGLIST)
+				op->flag &= ~(OPP_STRING);
+			if (op->flag & OPP_ASCIIZ)
+				op->len--;
+		}
+	} else
+		op = (openprom_property *)filp->private_data;
+	if (!count || !(op->len || (op->flag & OPP_ASCIIZ)))
+		return 0;
+	if (op->flag & OPP_STRINGLIST) {
+		for (k = 0, p = op->value; p < op->value + op->len; p++)
+			if (!*p)
+				k++;
+		i = op->len + 4 * k + 3;
+	} else if (op->flag & OPP_STRING) {
+		i = op->len + 3;
+	} else if (op->flag & OPP_BINARY) {
+		i = (op->len * 9) >> 2;
+	} else {
+		i = (op->len << 1) + 1;
+	}
+	k = pos;
+	if (k >= i) return 0;
+	if (count > i - k) count = i - k;
+	if (op->flag & OPP_STRING) {
+		if (!k) {
+			__put_user('\'', buf);
+			k++;
+			count--;
+		}
+
+		if (k + count >= i - 2)
+			j = i - 2 - k;
+		else
+			j = count;
+
+		if (j >= 0) {
+			copy_to_user(buf + k - pos,
+				     op->value + k - 1, j);
+			count -= j;
+			k += j;
+		}
+
+		if (count)
+			__put_user('\'', &buf [k++ - pos]);
+		if (count > 1)
+			__put_user('\n', &buf [k++ - pos]);
+
+	} else if (op->flag & OPP_STRINGLIST) {
+		char *tmp;
+
+		tmp = kmalloc (i, GFP_KERNEL);
+		if (!tmp)
+			return -ENOMEM;
+
+		s = tmp;
+		*s++ = '\'';
+		for (p = op->value; p < op->value + op->len; p++) {
+			if (!*p) {
+				strcpy(s, "' + '");
+				s += 5;
+				continue;
+			}
+			*s++ = *p;
+		}
+		strcpy(s, "'\n");
+
+		copy_to_user(buf, tmp + k, count);
+
+		kfree(tmp);
+		k += count;
+
+	} else if (op->flag & OPP_BINARY) {
+		char buffer[10];
+		u32 *first, *last;
+		int first_off, last_cnt;
+
+		first = ((u32 *)op->value) + k / 9;
+		first_off = k % 9;
+		last = ((u32 *)op->value) + (k + count - 1) / 9;
+		last_cnt = (k + count) % 9;
+		if (!last_cnt) last_cnt = 9;
+
+		if (first == last) {
+			sprintf (buffer, "%08x.", *first);
+			copy_to_user (buf, buffer + first_off, last_cnt - first_off);
+			buf += last_cnt - first_off;
+		} else {		
+			for (q = first; q <= last; q++) {
+				sprintf (buffer, "%08x.", *q);
+				if (q == first) {
+					copy_to_user (buf, buffer + first_off,
+						      9 - first_off);
+					buf += 9 - first_off;
+				} else if (q == last) {
+					copy_to_user (buf, buffer, last_cnt);
+					buf += last_cnt;
+				} else {
+					copy_to_user (buf, buffer, 9);
+					buf += 9;
+				}
+			}
+		}
+
+		if (last == (u32 *)(op->value + op->len - 4) && last_cnt == 9)
+			__put_user('\n', (buf - 1));
+
+		k += count;
+
+	} else if (op->flag & OPP_HEXSTRING) {
+		char buffer[2];
+
+		if ((k < i - 1) && (k & 1)) {
+			sprintf (buffer, "%02x", *(op->value + (k >> 1)));
+			__put_user(buffer[1], &buf[k++ - pos]);
+			count--;
+		}
+
+		for (; (count > 1) && (k < i - 1); k += 2) {
+			sprintf (buffer, "%02x", *(op->value + (k >> 1)));
+			copy_to_user (buf + k - pos, buffer, 2);
+			count -= 2;
+		}
+
+		if (count && (k < i - 1)) {
+			sprintf (buffer, "%02x", *(op->value + (k >> 1)));
+			__put_user(buffer[0], &buf[k++ - pos]);
+			count--;
+		}
+
+		if (count)
+			__put_user('\n', &buf [k++ - pos]);
+	}
+	count = k - pos;
+	*ppos = k;
+	return count;
+}
+
+static ssize_t property_write(struct file *filp, const char *buf,
+			      size_t count, loff_t *ppos)
+{
+	loff_t pos = *ppos;
+	int i, j, k;
+	char *p;
+	u32 *q;
+	void *b;
+	openprom_property *op;
+	
+	if (pos < 0 || pos >= 0xffffff)
+		return -EINVAL;
+	if (!filp->private_data) {
+		i = property_read (filp, NULL, 0, 0);
+		if (i)
+			return i;
+	}
+	k = pos;
+	op = (openprom_property *)filp->private_data;
+	if (!(op->flag & OPP_STRING)) {
+		u32 *first, *last;
+		int first_off, last_cnt;
+		u32 mask, mask2;
+		char tmp [9];
+		int forcelen = 0;
+		
+		j = k % 9;
+		for (i = 0; i < count; i++, j++) {
+			if (j == 9) j = 0;
+			if (!j) {
+				char ctmp;
+				__get_user(ctmp, &buf[i]);
+				if (ctmp != '.') {
+					if (ctmp != '\n') {
+						if (op->flag & OPP_BINARY)
+							return -EINVAL;
+						else
+							goto write_try_string;
+					} else {
+						count = i + 1;
+						forcelen = 1;
+						break;
+					}
+				}
+			} else {
+				char ctmp;
+				__get_user(ctmp, &buf[i]);
+				if (ctmp < '0' || 
+				    (ctmp > '9' && ctmp < 'A') ||
+				    (ctmp > 'F' && ctmp < 'a') ||
+				    ctmp > 'f') {
+					if (op->flag & OPP_BINARY)
+						return -EINVAL;
+					else
+						goto write_try_string;
+				}
+			}
+		}
+		op->flag |= OPP_BINARY;
+		tmp [8] = 0;
+		i = ((count + k + 8) / 9) << 2;
+		if (op->alloclen <= i) {
+			b = kmalloc (sizeof (openprom_property) + 2 * i,
+				     GFP_KERNEL);
+			if (!b)
+				return -ENOMEM;
+			memcpy (b, filp->private_data,
+				sizeof (openprom_property)
+				+ strlen (op->name) + op->alloclen);
+			memset (((char *)b) + sizeof (openprom_property)
+				+ strlen (op->name) + op->alloclen, 
+				0, 2 * i - op->alloclen);
+			op = (openprom_property *)b;
+			op->alloclen = 2*i;
+			b = filp->private_data;
+			filp->private_data = (void *)op;
+			kfree (b);
+		}
+		first = ((u32 *)op->value) + (k / 9);
+		first_off = k % 9;
+		last = (u32 *)(op->value + i);
+		last_cnt = (k + count) % 9;
+		if (first + 1 == last) {
+			memset (tmp, '0', 8);
+			copy_from_user (tmp + first_off, buf,
+					(count + first_off > 8) ? 8 - first_off : count);
+			mask = 0xffffffff;
+			mask2 = 0xffffffff;
+			for (j = 0; j < first_off; j++)
+				mask >>= 1;
+			for (j = 8 - count - first_off; j > 0; j--)
+				mask2 <<= 1;
+			mask &= mask2;
+			if (mask) {
+				*first &= ~mask;
+				*first |= simple_strtoul (tmp, 0, 16);
+				op->flag |= OPP_DIRTY;
+			}
+		} else {
+			op->flag |= OPP_DIRTY;
+			for (q = first; q < last; q++) {
+				if (q == first) {
+					if (first_off < 8) {
+						memset (tmp, '0', 8);
+						copy_from_user (tmp + first_off, buf,
+								8 - first_off);
+						mask = 0xffffffff;
+						for (j = 0; j < first_off; j++)
+							mask >>= 1;
+						*q &= ~mask;
+						*q |= simple_strtoul (tmp,0,16);
+					}
+					buf += 9;
+				} else if ((q == last - 1) && last_cnt
+					   && (last_cnt < 8)) {
+					memset (tmp, '0', 8);
+					copy_from_user (tmp, buf, last_cnt);
+					mask = 0xffffffff;
+					for (j = 0; j < 8 - last_cnt; j++)
+						mask <<= 1;
+					*q &= ~mask;
+					*q |= simple_strtoul (tmp, 0, 16);
+					buf += last_cnt;
+				} else {
+					char tchars[17]; /* XXX yuck... */
+
+					copy_from_user(tchars, buf, 16);
+					*q = simple_strtoul (tchars, 0, 16);
+					buf += 9;
+				}
+			}
+		}
+		if (!forcelen) {
+			if (op->len < i)
+				op->len = i;
+		} else
+			op->len = i;
+		pos += count;
+		*ppos = pos;
+	}
+write_try_string:
+	if (!(op->flag & OPP_BINARY)) {
+		if (!(op->flag & (OPP_QUOTED | OPP_NOTQUOTED))) {
+			char ctmp;
+
+			/* No way, if somebody starts writing from the middle, 
+			 * we don't know whether he uses quotes around or not 
+			 */
+			if (k > 0)
+				return -EINVAL;
+			__get_user(ctmp, buf);
+			if (ctmp == '\'') {
+				op->flag |= OPP_QUOTED;
+				buf++;
+				count--;
+				pos++;
+				*ppos = pos;
+				if (!count) {
+					op->flag |= OPP_STRING;
+					return 1;
+				}
+			} else
+				op->flag |= OPP_NOTQUOTED;
+		}
+		op->flag |= OPP_STRING;
+		if (op->alloclen <= count + pos) {
+			b = kmalloc (sizeof (openprom_property)
+				     + 2 * (count + pos), GFP_KERNEL);
+			if (!b)
+				return -ENOMEM;
+			memcpy (b, filp->private_data,
+				sizeof (openprom_property)
+				+ strlen (op->name) + op->alloclen);
+			memset (((char *)b) + sizeof (openprom_property)
+				+ strlen (op->name) + op->alloclen, 
+				0, 2*(count - pos) - op->alloclen);
+			op = (openprom_property *)b;
+			op->alloclen = 2*(count + pos);
+			b = filp->private_data;
+			filp->private_data = (void *)op;
+			kfree (b);
+		}
+		p = op->value + pos - ((op->flag & OPP_QUOTED) ? 1 : 0);
+		copy_from_user (p, buf, count);
+		op->flag |= OPP_DIRTY;
+		for (i = 0; i < count; i++, p++)
+			if (*p == '\n') {
+				*p = 0;
+				break;
+			}
+		if (i < count) {
+			op->len = p - op->value;
+			pos += i + 1;
+			*ppos = pos;
+			if ((p > op->value) && (op->flag & OPP_QUOTED)
+			    && (*(p - 1) == '\''))
+				op->len--;
+		} else {
+			if (p - op->value > op->len)
+				op->len = p - op->value;
+			pos += count;
+			*ppos = pos;
+		}
+	}
+	return pos - k;
+}
+
+int property_release (struct inode *inode, struct file *filp)
+{
+	openprom_property *op = (openprom_property *)filp->private_data;
+	unsigned long flags;
+	int error;
+	u32 node;
+	
+	if (!op)
+		return 0;
+	lock_kernel();
+	node = nodes[(u16)((long)inode->u.generic_ip)].node;
+	if ((u16)((long)inode->u.generic_ip) == aliases) {
+		if ((op->flag & OPP_DIRTY) && (op->flag & OPP_STRING)) {
+			char *p = op->name;
+			int i = (op->value - op->name) - strlen (op->name) - 1;
+			op->value [op->len] = 0;
+			*(op->value - 1) = ' ';
+			if (i) {
+				for (p = op->value - i - 2; p >= op->name; p--)
+					p[i] = *p;
+				p = op->name + i;
+			}
+			memcpy (p - 8, "nvalias ", 8);
+			prom_feval (p - 8);
+		}
+	} else if (op->flag & OPP_DIRTY) {
+		if (op->flag & OPP_STRING) {
+			op->value [op->len] = 0;
+			save_and_cli (flags);
+			error = prom_setprop (node, op->name,
+					      op->value, op->len + 1);
+			restore_flags (flags);
+			if (error <= 0)
+				printk (KERN_WARNING "openpromfs: "
+					"Couldn't write property %s\n",
+					op->name);
+		} else if ((op->flag & OPP_BINARY) || !op->len) {
+			save_and_cli (flags);
+			error = prom_setprop (node, op->name,
+					      op->value, op->len);
+			restore_flags (flags);
+			if (error <= 0)
+				printk (KERN_WARNING "openpromfs: "
+					"Couldn't write property %s\n",
+					op->name);
+		} else {
+			printk (KERN_WARNING "openpromfs: "
+				"Unknown property type of %s\n",
+				op->name);
+		}
+	}
+	unlock_kernel();
+	kfree (filp->private_data);
+	return 0;
+}
+
+static struct file_operations openpromfs_prop_ops = {
+	read:		property_read,
+	write:		property_write,
+	release:	property_release,
+};
+
+static struct file_operations openpromfs_nodenum_ops = {
+	read:		nodenum_read,
+};
+
+static struct file_operations openprom_operations = {
+	read:		generic_read_dir,
+	readdir:	openpromfs_readdir,
+};
+
+static struct inode_operations openprom_alias_inode_operations = {
+	create:		openpromfs_create,
+	lookup:		openpromfs_lookup,
+	unlink:		openpromfs_unlink,
+};
+
+static struct inode_operations openprom_inode_operations = {
+	lookup:		openpromfs_lookup,
+};
+
+static int lookup_children(u16 n, const char * name, int len)
+{
+	int ret;
+	u16 node;
+	for (; n != 0xffff; n = nodes[n].next) {
+		node = nodes[n].child;
+		if (node != 0xffff) {
+			char buffer[128];
+			int i;
+			char *p;
+			
+			while (node != 0xffff) {
+				if (prom_getname (nodes[node].node,
+						  buffer, 128) >= 0) {
+					i = strlen (buffer);
+					if ((len == i)
+					    && !strncmp (buffer, name, len))
+						return NODE2INO(node);
+					p = strchr (buffer, '@');
+					if (p && (len == p - buffer)
+					    && !strncmp (buffer, name, len))
+						return NODE2INO(node);
+				}
+				node = nodes[node].next;
+			}
+		} else
+			continue;
+		ret = lookup_children (nodes[n].child, name, len);
+		if (ret) return ret;
+	}
+	return 0;
+}
+
+static struct dentry *openpromfs_lookup(struct inode * dir, struct dentry *dentry)
+{
+	int ino = 0;
+#define OPFSL_DIR	0
+#define OPFSL_PROPERTY	1
+#define OPFSL_NODENUM	2
+	int type = 0;
+	char buffer[128];
+	char *p;
+	const char *name;
+	u32 n;
+	u16 dirnode;
+	unsigned int len;
+	int i;
+	struct inode *inode;
+	char buffer2[64];
+	
+	inode = NULL;
+	name = dentry->d_name.name;
+	len = dentry->d_name.len;
+	if (name [0] == '.' && len == 5 && !strncmp (name + 1, "node", 4)) {
+		ino = NODEP2INO(NODE(dir->i_ino).first_prop);
+		type = OPFSL_NODENUM;
+	}
+	if (!ino) {
+		u16 node = NODE(dir->i_ino).child;
+		while (node != 0xffff) {
+			if (prom_getname (nodes[node].node, buffer, 128) >= 0) {
+				i = strlen (buffer);
+				if (len == i && !strncmp (buffer, name, len)) {
+					ino = NODE2INO(node);
+					type = OPFSL_DIR;
+					break;
+				}
+				p = strchr (buffer, '@');
+				if (p && (len == p - buffer)
+				    && !strncmp (buffer, name, len)) {
+					ino = NODE2INO(node);
+					type = OPFSL_DIR;
+					break;
+				}
+			}
+			node = nodes[node].next;
+		}
+	}
+	n = NODE(dir->i_ino).node;
+	dirnode = dir->i_ino - OPENPROM_FIRST_INO;
+	if (!ino) {
+		int j = NODEP2INO(NODE(dir->i_ino).first_prop);
+		if (dirnode != aliases) {
+			for (p = prom_firstprop (n, buffer2);
+			     p && *p;
+			     p = prom_nextprop (n, p, buffer2)) {
+				j++;
+				if ((len == strlen (p))
+				    && !strncmp (p, name, len)) {
+					ino = j;
+					type = OPFSL_PROPERTY;
+					break;
+				}
+			}
+		} else {
+			int k;
+			for (k = 0; k < aliases_nodes; k++) {
+				j++;
+				if (alias_names [k]
+				    && (len == strlen (alias_names [k]))
+				    && !strncmp (alias_names [k], name, len)) {
+					ino = j;
+					type = OPFSL_PROPERTY;
+					break;
+				}
+			}
+		}
+	}
+	if (!ino) {
+		ino = lookup_children (NODE(dir->i_ino).child, name, len);
+		if (ino)
+			type = OPFSL_DIR;
+		else
+			return ERR_PTR(-ENOENT);
+	}
+	inode = iget (dir->i_sb, ino);
+	if (!inode)
+		return ERR_PTR(-EINVAL);
+	switch (type) {
+	case OPFSL_DIR:
+		inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO;
+		if (ino == OPENPROM_FIRST_INO + aliases) {
+			inode->i_mode |= S_IWUSR;
+			inode->i_op = &openprom_alias_inode_operations;
+		} else
+			inode->i_op = &openprom_inode_operations;
+		inode->i_fop = &openprom_operations;
+		inode->i_nlink = 2;
+		break;
+	case OPFSL_NODENUM:
+		inode->i_mode = S_IFREG | S_IRUGO;
+		inode->i_fop = &openpromfs_nodenum_ops;
+		inode->i_nlink = 1;
+		inode->u.generic_ip = (void *)(long)(n);
+		break;
+	case OPFSL_PROPERTY:
+		if ((dirnode == options) && (len == 17)
+		    && !strncmp (name, "security-password", 17))
+			inode->i_mode = S_IFREG | S_IRUSR | S_IWUSR;
+		else {
+			inode->i_mode = S_IFREG | S_IRUGO;
+			if (dirnode == options || dirnode == aliases) {
+				if (len != 4 || strncmp (name, "name", 4))
+					inode->i_mode |= S_IWUSR;
+			}
+		}
+		inode->i_fop = &openpromfs_prop_ops;
+		inode->i_nlink = 1;
+		if (inode->i_size < 0)
+			inode->i_size = 0;
+		inode->u.generic_ip = (void *)(long)(((u16)dirnode) | 
+			(((u16)(ino - NODEP2INO(NODE(dir->i_ino).first_prop) - 1)) << 16));
+		break;
+	}
+
+	inode->i_gid = 0;
+	inode->i_uid = 0;
+
+	d_add(dentry, inode);
+	return NULL;
+}
+
+static int openpromfs_readdir(struct file * filp, void * dirent, filldir_t filldir)
+{
+	struct inode *inode = filp->f_dentry->d_inode;
+	unsigned int ino;
+	u32 n;
+	int i, j;
+	char buffer[128];
+	u16 node;
+	char *p;
+	char buffer2[64];
+	
+	ino = inode->i_ino;
+	i = filp->f_pos;
+	switch (i) {
+	case 0:
+		if (filldir(dirent, ".", 1, i, ino, DT_DIR) < 0) return 0;
+		i++;
+		filp->f_pos++;
+		/* fall thru */
+	case 1:
+		if (filldir(dirent, "..", 2, i, 
+			(NODE(ino).parent == 0xffff) ? 
+			OPENPROM_ROOT_INO : NODE2INO(NODE(ino).parent), DT_DIR) < 0) 
+			return 0;
+		i++;
+		filp->f_pos++;
+		/* fall thru */
+	default:
+		i -= 2;
+		node = NODE(ino).child;
+		while (i && node != 0xffff) {
+			node = nodes[node].next;
+			i--;
+		}
+		while (node != 0xffff) {
+			if (prom_getname (nodes[node].node, buffer, 128) < 0)
+				return 0;
+			if (filldir(dirent, buffer, strlen(buffer),
+				    filp->f_pos, NODE2INO(node), DT_DIR) < 0)
+				return 0;
+			filp->f_pos++;
+			node = nodes[node].next;
+		}
+		j = NODEP2INO(NODE(ino).first_prop);
+		if (!i) {
+			if (filldir(dirent, ".node", 5, filp->f_pos, j, DT_REG) < 0)
+				return 0;
+			filp->f_pos++;
+		} else
+			i--;
+		n = NODE(ino).node;
+		if (ino == OPENPROM_FIRST_INO + aliases) {
+			for (j++; i < aliases_nodes; i++, j++) {
+				if (alias_names [i]) {
+					if (filldir (dirent, alias_names [i], 
+						strlen (alias_names [i]), 
+						filp->f_pos, j, DT_REG) < 0) return 0;
+					filp->f_pos++;
+				}
+			}
+		} else {
+			for (p = prom_firstprop (n, buffer2);
+			     p && *p;
+			     p = prom_nextprop (n, p, buffer2)) {
+				j++;
+				if (i) i--;
+				else {
+					if (filldir(dirent, p, strlen(p),
+						    filp->f_pos, j, DT_REG) < 0)
+						return 0;
+					filp->f_pos++;
+				}
+			}
+		}
+	}
+	return 0;
+}
+
+static int openpromfs_create (struct inode *dir, struct dentry *dentry, int mode)
+{
+	char *p;
+	struct inode *inode;
+	
+	if (!dir)
+		return -ENOENT;
+	if (dentry->d_name.len > 256)
+		return -EINVAL;
+	if (aliases_nodes == ALIASES_NNODES)
+		return -EIO;
+	p = kmalloc (dentry->d_name.len + 1, GFP_KERNEL);
+	if (!p)
+		return -ENOMEM;
+	strncpy (p, dentry->d_name.name, dentry->d_name.len);
+	p [dentry->d_name.len] = 0;
+	alias_names [aliases_nodes++] = p;
+	inode = iget (dir->i_sb,
+			NODEP2INO(NODE(dir->i_ino).first_prop) + aliases_nodes);
+	if (!inode)
+		return -EINVAL;
+	inode->i_mode = S_IFREG | S_IRUGO | S_IWUSR;
+	inode->i_fop = &openpromfs_prop_ops;
+	inode->i_nlink = 1;
+	if (inode->i_size < 0) inode->i_size = 0;
+	inode->u.generic_ip = (void *)(long)(((u16)aliases) | 
+			(((u16)(aliases_nodes - 1)) << 16));
+	d_instantiate(dentry, inode);
+	return 0;
+}
+
+static int openpromfs_unlink (struct inode *dir, struct dentry *dentry)
+{
+	unsigned int len;
+	char *p;
+	const char *name;
+	int i;
+	
+	name = dentry->d_name.name;
+	len = dentry->d_name.len;
+	for (i = 0; i < aliases_nodes; i++)
+		if ((strlen (alias_names [i]) == len)
+		    && !strncmp (name, alias_names[i], len)) {
+			char buffer[512];
+			
+			p = alias_names [i];
+			alias_names [i] = NULL;
+			kfree (p);
+			strcpy (buffer, "nvunalias ");
+			memcpy (buffer + 10, name, len);
+			buffer [10 + len] = 0;
+			prom_feval (buffer);
+		}
+	return 0;
+}
+
+/* {{{ init section */
+#ifndef MODULE
+static int __init check_space (u16 n)
+#else
+static int check_space (u16 n)
+#endif
+{
+	unsigned long pages;
+
+	if ((1 << alloced) * PAGE_SIZE < (n + 2) * sizeof(openpromfs_node)) {
+		pages = __get_free_pages (GFP_KERNEL, alloced + 1);
+		if (!pages)
+			return -1;
+
+		if (nodes) {
+			memcpy ((char *)pages, (char *)nodes,
+				(1 << alloced) * PAGE_SIZE);
+			free_pages ((unsigned long)nodes, alloced);
+		}
+		alloced++;
+		nodes = (openpromfs_node *)pages;
+	}
+	return 0;
+}
+
+#ifndef MODULE
+static u16 __init get_nodes (u16 parent, u32 node)
+#else
+static u16 get_nodes (u16 parent, u32 node)
+#endif
+{
+	char *p;
+	u16 n = last_node++, i;
+	char buffer[64];
+
+	if (check_space (n) < 0)
+		return 0xffff;
+	nodes[n].parent = parent;
+	nodes[n].node = node;
+	nodes[n].next = 0xffff;
+	nodes[n].child = 0xffff;
+	nodes[n].first_prop = first_prop++;
+	if (!parent) {
+		char buffer[8];
+		int j;
+		
+		if ((j = prom_getproperty (node, "name", buffer, 8)) >= 0) {
+		    buffer[j] = 0;
+		    if (!strcmp (buffer, "options"))
+			options = n;
+		    else if (!strcmp (buffer, "aliases"))
+		        aliases = n;
+		}
+	}
+	if (n != aliases)
+		for (p = prom_firstprop (node, buffer);
+		     p && p != (char *)-1 && *p;
+		     p = prom_nextprop (node, p, buffer))
+			first_prop++;
+	else {
+		char *q;
+		for (p = prom_firstprop (node, buffer);
+		     p && p != (char *)-1 && *p;
+		     p = prom_nextprop (node, p, buffer)) {
+			if (aliases_nodes == ALIASES_NNODES)
+				break;
+			for (i = 0; i < aliases_nodes; i++)
+				if (!strcmp (p, alias_names [i]))
+					break;
+			if (i < aliases_nodes)
+				continue;
+			q = kmalloc (strlen (p) + 1, GFP_KERNEL);
+			if (!q)
+				return 0xffff;
+			strcpy (q, p);
+			alias_names [aliases_nodes++] = q;
+		}
+		first_prop += ALIASES_NNODES;
+	}
+	node = prom_getchild (node);
+	if (node) {
+		parent = get_nodes (n, node);
+		if (parent == 0xffff)
+			return 0xffff;
+		nodes[n].child = parent;
+		while ((node = prom_getsibling (node)) != 0) {
+			i = get_nodes (n, node);
+			if (i == 0xffff)
+				return 0xffff;
+			nodes[parent].next = i;
+			parent = i;
+		}
+	}
+	return n;
+}
+
+static void openprom_read_inode(struct inode * inode)
+{
+	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+	if (inode->i_ino == OPENPROM_ROOT_INO) {
+		inode->i_op = &openprom_inode_operations;
+		inode->i_fop = &openprom_operations;
+		inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO;
+	}
+}
+
+static int openprom_statfs(struct super_block *sb, struct statfs *buf)
+{
+	buf->f_type = OPENPROM_SUPER_MAGIC;
+	buf->f_bsize = PAGE_SIZE/sizeof(long);	/* ??? */
+	buf->f_bfree = 0;
+	buf->f_bavail = 0;
+	buf->f_ffree = 0;
+	buf->f_namelen = NAME_MAX;
+	return 0;
+}
+
+static struct super_operations openprom_sops = { 
+	read_inode:	openprom_read_inode,
+	statfs:		openprom_statfs,
+};
+
+struct super_block *openprom_read_super(struct super_block *s,void *data, 
+				    int silent)
+{
+	struct inode * root_inode;
+
+	s->s_blocksize = 1024;
+	s->s_blocksize_bits = 10;
+	s->s_magic = OPENPROM_SUPER_MAGIC;
+	s->s_op = &openprom_sops;
+	root_inode = iget(s, OPENPROM_ROOT_INO);
+	if (!root_inode)
+		goto out_no_root;
+	s->s_root = d_alloc_root(root_inode);
+	if (!s->s_root)
+		goto out_no_root;
+	return s;
+
+out_no_root:
+	printk("openprom_read_super: get root inode failed\n");
+	iput(root_inode);
+	return NULL;
+}
+
+static DECLARE_FSTYPE(openprom_fs_type, "openpromfs", openprom_read_super, 0);
+
+static int __init init_openprom_fs(void)
+{
+	nodes = (openpromfs_node *)__get_free_pages(GFP_KERNEL, 0);
+	if (!nodes) {
+		printk (KERN_WARNING "openpromfs: can't get free page\n");
+		return -EIO;
+	}
+	if (get_nodes (0xffff, prom_root_node) == 0xffff) {
+		printk (KERN_WARNING "openpromfs: couldn't setup tree\n");
+		return -EIO;
+	}
+	nodes[last_node].first_prop = first_prop;
+	return register_filesystem(&openprom_fs_type);
+}
+
+static void __exit exit_openprom_fs(void)
+{
+	int i;
+	unregister_filesystem(&openprom_fs_type);
+	free_pages ((unsigned long)nodes, alloced);
+	for (i = 0; i < aliases_nodes; i++)
+		if (alias_names [i])
+			kfree (alias_names [i]);
+	nodes = NULL;
+}
+
+EXPORT_NO_SYMBOLS;
+
+module_init(init_openprom_fs)
+module_exit(exit_openprom_fs)
+MODULE_LICENSE("GPL");
diff --git a/fs/partitions/Config.in b/fs/partitions/Config.in
new file mode 100644
index 00000000000000..ed7a62b9630e4a
--- /dev/null
+++ b/fs/partitions/Config.in
@@ -0,0 +1,71 @@
+#
+# Partition configuration
+#
+bool 'Advanced partition selection' CONFIG_PARTITION_ADVANCED
+if [ "$CONFIG_PARTITION_ADVANCED" = "y" ]; then
+   bool '  Acorn partition support' CONFIG_ACORN_PARTITION
+   if [ "$CONFIG_ACORN_PARTITION" != "n" ]; then
+#      bool '    Cumana partition support' CONFIG_ACORN_PARTITION_CUMANA
+      bool '    ICS partition support' CONFIG_ACORN_PARTITION_ICS
+      bool '    Native filecore partition support' CONFIG_ACORN_PARTITION_ADFS
+      bool '    PowerTec partition support' CONFIG_ACORN_PARTITION_POWERTEC
+      bool '    RISCiX partition support' CONFIG_ACORN_PARTITION_RISCIX
+   fi
+   bool '  Alpha OSF partition support' CONFIG_OSF_PARTITION
+   bool '  Amiga partition table support' CONFIG_AMIGA_PARTITION
+   bool '  Atari partition table support' CONFIG_ATARI_PARTITION
+   if [ "$CONFIG_ARCH_S390" = "y" ]; then
+      bool '  IBM disk label and partition support' CONFIG_IBM_PARTITION
+   fi
+   bool '  Macintosh partition map support' CONFIG_MAC_PARTITION
+   bool '  PC BIOS (MSDOS partition tables) support' CONFIG_MSDOS_PARTITION
+   if [ "$CONFIG_MSDOS_PARTITION" = "y" ]; then
+      bool '    BSD disklabel (FreeBSD partition tables) support' CONFIG_BSD_DISKLABEL
+      bool '    Minix subpartition support' CONFIG_MINIX_SUBPARTITION
+      bool '    Solaris (x86) partition table support' CONFIG_SOLARIS_X86_PARTITION
+      bool '    Unixware slices support' CONFIG_UNIXWARE_DISKLABEL
+   fi
+   dep_bool '  Windows Logical Disk Manager (Dynamic Disk) support (EXPERIMENTAL)' CONFIG_LDM_PARTITION $CONFIG_EXPERIMENTAL
+   if [ "$CONFIG_LDM_PARTITION" = "y" ]; then
+      bool '    Windows LDM extra logging' CONFIG_LDM_DEBUG
+   fi
+   bool '  SGI partition support' CONFIG_SGI_PARTITION
+   bool '  Ultrix partition table support' CONFIG_ULTRIX_PARTITION
+   bool '  Sun partition tables support' CONFIG_SUN_PARTITION
+   bool '  EFI GUID Partition support' CONFIG_EFI_PARTITION
+else
+   if [ "$CONFIG_ALPHA" = "y" ]; then
+      define_bool CONFIG_OSF_PARTITION y
+   fi
+   if [ "$CONFIG_AMIGA" != "y" -a "$CONFIG_ATARI" != "y" -a \
+        "$CONFIG_MAC" != "y" -a "$CONFIG_SGI_IP22" != "y" -a \
+	"$CONFIG_SGI_IP27" != "y" ]; then
+      define_bool CONFIG_MSDOS_PARTITION y
+   fi
+   if [ "$CONFIG_AMIGA" = "y" -o "$CONFIG_AFFS_FS" = "y" ]; then
+      define_bool CONFIG_AMIGA_PARTITION y
+   fi
+   if [ "$CONFIG_MAC" = "y" ]; then
+      define_bool CONFIG_MAC_PARTITION y
+   fi
+   if [ "$CONFIG_ARCH_ACORN" = "y" ]; then
+      define_bool CONFIG_ACORN_PARTITION y
+      define_bool CONFIG_ACORN_PARTITION_ADFS y
+#      define_bool CONFIG_ACORN_PARTITION_CUMANA y
+      define_bool CONFIG_ACORN_PARTITION_ICS y
+      define_bool CONFIG_ACORN_PARTITION_POWERTEC y
+      define_bool CONFIG_ACORN_PARTITION_RISCIX y
+   fi
+   if [ "$CONFIG_ATARI" = "y" ]; then
+      define_bool CONFIG_ATARI_PARTITION y
+   fi
+   if [ "$CONFIG_SGI_IP22" = "y" -o "$CONFIG_SGI_IP27" = "y" ]; then
+      define_bool CONFIG_SGI_PARTITION y
+   fi
+   if [ "$CONFIG_DECSTATION" = "y" ]; then
+      define_bool CONFIG_ULTRIX_PARTITION y
+   fi
+   if [ "$CONFIG_SPARC32" = "y" -o "$CONFIG_SPARC64" = "y" ]; then
+      define_bool CONFIG_SUN_PARTITION y
+   fi
+fi
diff --git a/fs/partitions/Makefile b/fs/partitions/Makefile
new file mode 100644
index 00000000000000..cb2a10e6eb4f28
--- /dev/null
+++ b/fs/partitions/Makefile
@@ -0,0 +1,29 @@
+#
+# Makefile for the linux kernel.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile...
+
+O_TARGET := partitions.o
+
+export-objs := check.o msdos.o
+
+obj-y := check.o
+
+obj-$(CONFIG_ACORN_PARTITION) += acorn.o
+obj-$(CONFIG_AMIGA_PARTITION) += amiga.o
+obj-$(CONFIG_ATARI_PARTITION) += atari.o
+obj-$(CONFIG_MAC_PARTITION) += mac.o
+obj-$(CONFIG_LDM_PARTITION) += ldm.o
+obj-$(CONFIG_MSDOS_PARTITION) += msdos.o
+obj-$(CONFIG_OSF_PARTITION) += osf.o
+obj-$(CONFIG_SGI_PARTITION) += sgi.o
+obj-$(CONFIG_SUN_PARTITION) += sun.o
+obj-$(CONFIG_ULTRIX_PARTITION) += ultrix.o
+obj-$(CONFIG_IBM_PARTITION) += ibm.o
+obj-$(CONFIG_EFI_PARTITION) += efi.o
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/partitions/acorn.c b/fs/partitions/acorn.c
new file mode 100644
index 00000000000000..e9da3ced3570f7
--- /dev/null
+++ b/fs/partitions/acorn.c
@@ -0,0 +1,478 @@
+/*
+ *  linux/fs/partitions/acorn.c
+ *
+ *  Copyright (c) 1996-2000 Russell King.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ *  Scan ADFS partitions on hard disk drives.
+ */
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/kdev_t.h>
+#include <linux/major.h>
+#include <linux/string.h>
+#include <linux/genhd.h>
+#include <linux/fs.h>
+#include <linux/pagemap.h>
+
+#include "check.h"
+#include "acorn.h"
+
+static void
+adfspart_setgeometry(kdev_t dev, unsigned int secspertrack, unsigned int heads)
+{
+#ifdef CONFIG_BLK_DEV_MFM
+	extern void xd_set_geometry(kdev_t dev, unsigned char, unsigned char,
+				    unsigned long, unsigned int);
+
+	if (MAJOR(dev) == MFM_ACORN_MAJOR) {
+		unsigned long totalblocks = hd->part[MINOR(dev)].nr_sects;
+		xd_set_geometry(dev, secspertrack, heads, totalblocks, 1);
+	}
+#endif
+}
+
+static struct adfs_discrecord *
+adfs_partition(struct gendisk *hd, char *name, char *data,
+	       unsigned long first_sector, int minor)
+{
+	struct adfs_discrecord *dr;
+	unsigned int nr_sects;
+
+	if (adfs_checkbblk(data))
+		return NULL;
+
+	dr = (struct adfs_discrecord *)(data + 0x1c0);
+
+	if (dr->disc_size == 0 && dr->disc_size_high == 0)
+		return NULL;
+
+	nr_sects = (le32_to_cpu(dr->disc_size_high) << 23) |
+		   (le32_to_cpu(dr->disc_size) >> 9);
+
+	if (name)
+		printk(" [%s]", name);
+	add_gd_partition(hd, minor, first_sector, nr_sects);
+	return dr;
+}
+
+#ifdef CONFIG_ACORN_PARTITION_RISCIX
+static int
+riscix_partition(struct gendisk *hd, struct block_device *bdev,
+		unsigned long first_sect, int minor, unsigned long nr_sects)
+{
+	Sector sect;
+	struct riscix_record *rr;
+	
+	rr = (struct riscix_record *)read_dev_sector(bdev, first_sect, &sect);
+	if (!rr)
+		return -1;
+
+	printk(" [RISCiX]");
+
+
+	if (rr->magic == RISCIX_MAGIC) {
+		unsigned long size = nr_sects > 2 ? 2 : nr_sects;
+		int part;
+
+		printk(" <");
+
+		add_gd_partition(hd, minor++, first_sect, size);
+		for (part = 0; part < 8; part++) {
+			if (rr->part[part].one &&
+			    memcmp(rr->part[part].name, "All\0", 4)) {
+				add_gd_partition(hd, minor++,
+						le32_to_cpu(rr->part[part].start),
+						le32_to_cpu(rr->part[part].length));
+				printk("(%s)", rr->part[part].name);
+			}
+		}
+
+		printk(" >\n");
+	} else {
+		add_gd_partition(hd, minor++, first_sect, nr_sects);
+	}
+
+	put_dev_sector(sect);
+	return minor;
+}
+#endif
+
+static int
+linux_partition(struct gendisk *hd, struct block_device *bdev,
+		unsigned long first_sect, int minor, unsigned long nr_sects)
+{
+	Sector sect;
+	struct linux_part *linuxp;
+	unsigned int mask = (1 << hd->minor_shift) - 1;
+	unsigned long size = nr_sects > 2 ? 2 : nr_sects;
+
+	printk(" [Linux]");
+
+	add_gd_partition(hd, minor++, first_sect, size);
+
+	linuxp = (struct linux_part *)read_dev_sector(bdev, first_sect, &sect);
+	if (!linuxp)
+		return -1;
+
+	printk(" <");
+	while (linuxp->magic == cpu_to_le32(LINUX_NATIVE_MAGIC) ||
+	       linuxp->magic == cpu_to_le32(LINUX_SWAP_MAGIC)) {
+		if (!(minor & mask))
+			break;
+		add_gd_partition(hd, minor++, first_sect +
+				 le32_to_cpu(linuxp->start_sect),
+				 le32_to_cpu(linuxp->nr_sects));
+		linuxp ++;
+	}
+	printk(" >");
+
+	put_dev_sector(sect);
+	return minor;
+}
+
+#ifdef CONFIG_ACORN_PARTITION_CUMANA
+static int
+adfspart_check_CUMANA(struct gendisk *hd, struct block_device *bdev,
+		      unsigned long first_sector, int minor)
+{
+	unsigned int start_blk = 0, mask = (1 << hd->minor_shift) - 1;
+	Sector sect;
+	unsigned char *data;
+	char *name = "CUMANA/ADFS";
+	int first = 1;
+
+	/*
+	 * Try Cumana style partitions - sector 3 contains ADFS boot block
+	 * with pointer to next 'drive'.
+	 *
+	 * There are unknowns in this code - is the 'cylinder number' of the
+	 * next partition relative to the start of this one - I'm assuming
+	 * it is.
+	 *
+	 * Also, which ID did Cumana use?
+	 *
+	 * This is totally unfinished, and will require more work to get it
+	 * going. Hence it is totally untested.
+	 */
+	do {
+		struct adfs_discrecord *dr;
+		unsigned int nr_sects;
+
+		if (!(minor & mask))
+			break;
+
+		data = read_dev_sector(bdev, start_blk * 2 + 6, &sect);
+		if (!data)
+			return -1;
+
+		dr = adfs_partition(hd, name, data, first_sector, minor++);
+		if (!dr)
+			break;
+
+		name = NULL;
+
+		nr_sects = (data[0x1fd] + (data[0x1fe] << 8)) *
+			   (dr->heads + (dr->lowsector & 0x40 ? 1 : 0)) *
+			   dr->secspertrack;
+
+		if (!nr_sects)
+			break;
+
+		first = 0;
+		first_sector += nr_sects;
+		start_blk += nr_sects >> (BLOCK_SIZE_BITS - 9);
+		nr_sects = 0; /* hmm - should be partition size */
+
+		switch (data[0x1fc] & 15) {
+		case 0: /* No partition / ADFS? */
+			break;
+
+#ifdef CONFIG_ACORN_PARTITION_RISCIX
+		case PARTITION_RISCIX_SCSI:
+			/* RISCiX - we don't know how to find the next one. */
+			minor = riscix_partition(hd, bdev, first_sector,
+						 minor, nr_sects);
+			break;
+#endif
+
+		case PARTITION_LINUX:
+			minor = linux_partition(hd, bdev, first_sector,
+						minor, nr_sects);
+			break;
+		}
+		put_dev_sector(sect);
+		if (minor == -1)
+			return minor;
+	} while (1);
+	put_dev_sector(sect);
+	return first ? 0 : 1;
+}
+#endif
+
+#ifdef CONFIG_ACORN_PARTITION_ADFS
+/*
+ * Purpose: allocate ADFS partitions.
+ *
+ * Params : hd		- pointer to gendisk structure to store partition info.
+ *	    dev		- device number to access.
+ *	    first_sector- first readable sector on the device.
+ *	    minor	- first available minor on device.
+ *
+ * Returns: -1 on error, 0 for no ADFS boot sector, 1 for ok.
+ *
+ * Alloc  : hda  = whole drive
+ *	    hda1 = ADFS partition on first drive.
+ *	    hda2 = non-ADFS partition.
+ */
+static int
+adfspart_check_ADFS(struct gendisk *hd, struct block_device *bdev,
+		   unsigned long first_sector, int minor)
+{
+	unsigned long start_sect, nr_sects, sectscyl, heads;
+	Sector sect;
+	unsigned char *data;
+	struct adfs_discrecord *dr;
+	unsigned char id;
+
+	data = read_dev_sector(bdev, 6, &sect);
+	if (!data)
+		return -1;
+
+	dr = adfs_partition(hd, "ADFS", data, first_sector, minor++);
+	if (!dr) {
+		put_dev_sector(sect);
+    		return 0;
+	}
+
+	heads = dr->heads + ((dr->lowsector >> 6) & 1);
+	sectscyl = dr->secspertrack * heads;
+	start_sect = ((data[0x1fe] << 8) + data[0x1fd]) * sectscyl;
+	id = data[0x1fc] & 15;
+	put_dev_sector(sect);
+
+	adfspart_setgeometry(to_kdev_t(bdev->bd_dev), dr->secspertrack, heads);
+	invalidate_bdev(bdev, 1);
+	truncate_inode_pages(bdev->bd_inode->i_mapping, 0);
+
+	/*
+	 * Work out start of non-adfs partition.
+	 */
+	nr_sects = hd->part[MINOR(to_kdev_t(bdev->bd_dev))].nr_sects - start_sect;
+
+	if (start_sect) {
+		first_sector += start_sect;
+
+		switch (id) {
+#ifdef CONFIG_ACORN_PARTITION_RISCIX
+		case PARTITION_RISCIX_SCSI:
+		case PARTITION_RISCIX_MFM:
+			minor = riscix_partition(hd, bdev, first_sector,
+						 minor, nr_sects);
+			break;
+#endif
+
+		case PARTITION_LINUX:
+			minor = linux_partition(hd, bdev, first_sector,
+						minor, nr_sects);
+			break;
+		}
+	}
+	return 1;
+}
+#endif
+
+#ifdef CONFIG_ACORN_PARTITION_ICS
+static int adfspart_check_ICSLinux(struct block_device *bdev, unsigned long block)
+{
+	Sector sect;
+	unsigned char *data = read_dev_sector(bdev, block, &sect);
+	int result = 0;
+
+	if (data) {
+		if (memcmp(data, "LinuxPart", 9) == 0)
+			result = 1;
+		put_dev_sector(sect);
+	}
+
+	return result;
+}
+
+/*
+ * Purpose: allocate ICS partitions.
+ * Params : hd		- pointer to gendisk structure to store partition info.
+ *	    dev		- device number to access.
+ *	    first_sector- first readable sector on the device.
+ *	    minor	- first available minor on device.
+ * Returns: -1 on error, 0 for no ICS table, 1 for partitions ok.
+ * Alloc  : hda  = whole drive
+ *	    hda1 = ADFS partition 0 on first drive.
+ *	    hda2 = ADFS partition 1 on first drive.
+ *		..etc..
+ */
+static int
+adfspart_check_ICS(struct gendisk *hd, struct block_device *bdev,
+		   unsigned long first_sector, int minor)
+{
+	Sector sect;
+	unsigned char *data;
+	unsigned long sum;
+	unsigned int i, mask = (1 << hd->minor_shift) - 1;
+	struct ics_part *p;
+
+	/*
+	 * Try ICS style partitions - sector 0 contains partition info.
+	 */
+	data = read_dev_sector(bdev, 0, &sect);
+	if (!data)
+	    	return -1;
+
+	/*
+	 * check for a valid checksum
+	 */
+	for (i = 0, sum = 0x50617274; i < 508; i++)
+		sum += data[i];
+
+	sum -= le32_to_cpu(*(__u32 *)(&data[508]));
+	if (sum) {
+	    	put_dev_sector(sect);
+		return 0; /* not ICS partition table */
+	}
+
+	printk(" [ICS]");
+
+	for (p = (struct ics_part *)data; p->size; p++) {
+		unsigned long start;
+		long size;
+
+		if ((minor & mask) == 0)
+			break;
+
+		start = le32_to_cpu(p->start);
+		size  = le32_to_cpu(p->size);
+
+		if (size < 0) {
+			size = -size;
+
+			/*
+			 * We use the first sector to identify what type
+			 * this partition is...
+			 */
+			if (size > 1 && adfspart_check_ICSLinux(bdev, start)) {
+				start += 1;
+				size -= 1;
+			}
+		}
+
+		if (size) {
+			add_gd_partition(hd, minor, first_sector + start, size);
+			minor++;
+		}
+	}
+
+	put_dev_sector(sect);
+	return 1;
+}
+#endif
+
+/*
+ * Purpose: allocate ICS partitions.
+ * Params : hd		- pointer to gendisk structure to store partition info.
+ *	    dev		- device number to access.
+ *	    first_sector- first readable sector on the device.
+ *	    minor	- first available minor on device.
+ * Returns: -1 on error, 0 for no ICS table, 1 for partitions ok.
+ * Alloc  : hda  = whole drive
+ *	    hda1 = ADFS partition 0 on first drive.
+ *	    hda2 = ADFS partition 1 on first drive.
+ *		..etc..
+ */
+#ifdef CONFIG_ACORN_PARTITION_POWERTEC
+static int
+adfspart_check_POWERTEC(struct gendisk *hd, struct block_device *bdev,
+			unsigned long first_sector, int minor)
+{
+	Sector sect;
+	unsigned char *data;
+	struct ptec_partition *p;
+	unsigned char checksum;
+	int i;
+
+	data = read_dev_sector(bdev, 0, &sect);
+	if (!data)
+		return -1;
+
+	for (checksum = 0x2a, i = 0; i < 511; i++)
+		checksum += data[i];
+
+	if (checksum != data[511]) {
+		put_dev_sector(sect);
+		return 0;
+	}
+
+	printk(" [POWERTEC]");
+
+	for (i = 0, p = (struct ptec_partition *)data; i < 12; i++, p++) {
+		unsigned long start;
+		unsigned long size;
+
+		start = le32_to_cpu(p->start);
+		size  = le32_to_cpu(p->size);
+
+		if (size)
+			add_gd_partition(hd, minor, first_sector + start,
+					 size);
+		minor++;
+	}
+
+	put_dev_sector(sect);
+	return 1;
+}
+#endif
+
+static int (*partfn[])(struct gendisk *, struct block_device *, unsigned long, int) = {
+#ifdef CONFIG_ACORN_PARTITION_ICS
+	adfspart_check_ICS,
+#endif
+#ifdef CONFIG_ACORN_PARTITION_POWERTEC
+	adfspart_check_POWERTEC,
+#endif
+#ifdef CONFIG_ACORN_PARTITION_CUMANA
+	adfspart_check_CUMANA,
+#endif
+#ifdef CONFIG_ACORN_PARTITION_ADFS
+	adfspart_check_ADFS,
+#endif
+	NULL
+};
+/*
+ * Purpose: initialise all the partitions on an ADFS drive.
+ *          These may be other ADFS partitions or a Linux/RiscBSD/RISCiX
+ *	    partition.
+ *
+ * Params : hd		- pointer to gendisk structure
+ *          dev		- device number to access
+ *	    first_sect  - first available sector on the disk.
+ *	    first_minor	- first available minor on this device.
+ *
+ * Returns: -1 on error, 0 if not ADFS format, 1 if ok.
+ */
+int acorn_partition(struct gendisk *hd, struct block_device *bdev,
+		    unsigned long first_sect, int first_minor)
+{
+	int i;
+
+	for (i = 0; partfn[i]; i++) {
+		int r = partfn[i](hd, bdev, first_sect, first_minor);
+		if (r) {
+			if (r > 0)
+				printk("\n");
+			return r;
+		}
+	}
+	return 0;
+}
diff --git a/fs/partitions/acorn.h b/fs/partitions/acorn.h
new file mode 100644
index 00000000000000..f4b3b80d383c96
--- /dev/null
+++ b/fs/partitions/acorn.h
@@ -0,0 +1,55 @@
+/*
+ * fs/partitions/acorn.h
+ *
+ * Copyright (C) 1996-1998 Russell King
+ */
+#include <linux/adfs_fs.h>
+
+/*
+ * Partition types. (Oh for reusability)
+ */
+#define PARTITION_RISCIX_MFM	1
+#define PARTITION_RISCIX_SCSI	2
+#define PARTITION_LINUX		9
+
+struct riscix_part {
+	__u32  start;
+	__u32  length;
+	__u32  one;
+	char name[16];
+};
+
+struct riscix_record {
+	__u32  magic;
+#define RISCIX_MAGIC	(0x4a657320)
+	__u32  date;
+	struct riscix_part part[8];
+};
+
+#define LINUX_NATIVE_MAGIC 0xdeafa1de
+#define LINUX_SWAP_MAGIC   0xdeafab1e
+
+struct linux_part {
+	__u32 magic;
+	__u32 start_sect;
+	__u32 nr_sects;
+};
+
+struct ics_part {
+	__u32 start;
+	__s32 size;
+};
+
+struct ptec_partition {
+	__u32 unused1;
+	__u32 unused2;
+	__u32 start;
+	__u32 size;
+	__u32 unused5;
+	char type[8];
+};
+	
+
+int acorn_partition(struct gendisk *hd, struct block_device *bdev,
+		   unsigned long first_sect, int first_minor);
+
diff --git a/fs/partitions/amiga.c b/fs/partitions/amiga.c
new file mode 100644
index 00000000000000..3ecf9c4f88b427
--- /dev/null
+++ b/fs/partitions/amiga.c
@@ -0,0 +1,112 @@
+/*
+ *  fs/partitions/amiga.c
+ *
+ *  Code extracted from drivers/block/genhd.c
+ *
+ *  Copyright (C) 1991-1998  Linus Torvalds
+ *  Re-organised Feb 1998 Russell King
+ */
+
+#include <linux/fs.h>
+#include <linux/genhd.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/string.h>
+#include <linux/blk.h>
+
+#include <asm/byteorder.h>
+#include <linux/affs_hardblocks.h>
+
+#include "check.h"
+#include "amiga.h"
+
+static __inline__ u32
+checksum_block(u32 *m, int size)
+{
+	u32 sum = 0;
+
+	while (size--)
+		sum += be32_to_cpu(*m++);
+	return sum;
+}
+
+int
+amiga_partition(struct gendisk *hd, struct block_device *bdev,
+		unsigned long first_sector, int first_part_minor)
+{
+	Sector sect;
+	unsigned char *data;
+	struct RigidDiskBlock *rdb;
+	struct PartitionBlock *pb;
+	int start_sect, nr_sects, blk, part, res = 0;
+	kdev_t dev = to_kdev_t(bdev->bd_dev);
+
+	for (blk = 0; ; blk++, put_dev_sector(sect)) {
+		if (blk == RDB_ALLOCATION_LIMIT)
+			goto rdb_done;
+		data = read_dev_sector(bdev, blk, &sect);
+		if (!data) {
+			if (warn_no_part)
+				printk("Dev %s: unable to read RDB block %d\n",
+				       bdevname(dev), blk);
+			goto rdb_done;
+		}
+		if (*(u32 *)data != cpu_to_be32(IDNAME_RIGIDDISK))
+			continue;
+
+		rdb = (struct RigidDiskBlock *)data;
+		if (checksum_block((u32 *)data, be32_to_cpu(rdb->rdb_SummedLongs) & 0x7F) == 0)
+			break;
+		/* Try again with 0xdc..0xdf zeroed, Windows might have
+		 * trashed it.
+		 */
+		*(u32 *)(data+0xdc) = 0;
+		if (checksum_block((u32 *)data,
+				be32_to_cpu(rdb->rdb_SummedLongs) & 0x7F)==0) {
+			printk("Warning: Trashed word at 0xd0 in block %d "
+				"ignored in checksum calculation\n",blk);
+			break;
+		}
+
+		printk("Dev %s: RDB in block %d has bad checksum\n",
+			       bdevname(dev),blk);
+	}
+
+	printk(" RDSK");
+	blk = be32_to_cpu(rdb->rdb_PartitionList);
+	put_dev_sector(sect);
+	for (part = 1; blk>0 && part<=16; part++, put_dev_sector(sect)) {
+		data = read_dev_sector(bdev, blk, &sect);
+		if (!data) {
+			if (warn_no_part)
+				printk("Dev %s: unable to read partition block %d\n",
+				       bdevname(dev),blk);
+			goto rdb_done;
+		}
+		pb  = (struct PartitionBlock *)data;
+		blk = be32_to_cpu(pb->pb_Next);
+		if (pb->pb_ID != cpu_to_be32(IDNAME_PARTITION))
+			continue;
+		if (checksum_block((u32 *)pb, be32_to_cpu(pb->pb_SummedLongs) & 0x7F) != 0 )
+			continue;
+
+		/* Tell Kernel about it */
+
+		nr_sects = (be32_to_cpu(pb->pb_Environment[10]) + 1 -
+			    be32_to_cpu(pb->pb_Environment[9])) *
+			   be32_to_cpu(pb->pb_Environment[3]) *
+			   be32_to_cpu(pb->pb_Environment[5]);
+		if (!nr_sects)
+			continue;
+		start_sect = be32_to_cpu(pb->pb_Environment[9]) *
+			     be32_to_cpu(pb->pb_Environment[3]) *
+			     be32_to_cpu(pb->pb_Environment[5]);
+		add_gd_partition(hd,first_part_minor,start_sect,nr_sects);
+		first_part_minor++;
+		res = 1;
+	}
+	printk("\n");
+
+rdb_done:
+	return res;
+}
diff --git a/fs/partitions/amiga.h b/fs/partitions/amiga.h
new file mode 100644
index 00000000000000..4f4f8a2772d970
--- /dev/null
+++ b/fs/partitions/amiga.h
@@ -0,0 +1,8 @@
+/*
+ *  fs/partitions/amiga.h
+ */
+
+int
+amiga_partition(struct gendisk *hd, struct block_device *bdev,
+		unsigned long first_sector, int first_part_minor);
+
diff --git a/fs/partitions/atari.c b/fs/partitions/atari.c
new file mode 100644
index 00000000000000..11a7b4a79625e9
--- /dev/null
+++ b/fs/partitions/atari.c
@@ -0,0 +1,162 @@
+/*
+ *  fs/partitions/atari.c
+ *
+ *  Code extracted from drivers/block/genhd.c
+ *
+ *  Copyright (C) 1991-1998  Linus Torvalds
+ *  Re-organised Feb 1998 Russell King
+ */
+
+#include <linux/fs.h>
+#include <linux/genhd.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/string.h>
+#include <linux/blk.h>
+#include <linux/ctype.h>
+
+#include <asm/byteorder.h>
+#include <asm/system.h>
+
+#include "check.h"
+#include "atari.h"
+
+/* ++guenther: this should be settable by the user ("make config")?.
+ */
+#define ICD_PARTS
+
+/* check if a partition entry looks valid -- Atari format is assumed if at
+   least one of the primary entries is ok this way */
+#define	VALID_PARTITION(pi,hdsiz)					     \
+    (((pi)->flg & 1) &&							     \
+     isalnum((pi)->id[0]) && isalnum((pi)->id[1]) && isalnum((pi)->id[2]) && \
+     be32_to_cpu((pi)->st) <= (hdsiz) &&				     \
+     be32_to_cpu((pi)->st) + be32_to_cpu((pi)->siz) <= (hdsiz))
+
+static inline int OK_id(char *s)
+{
+	return  memcmp (s, "GEM", 3) == 0 || memcmp (s, "BGM", 3) == 0 ||
+		memcmp (s, "LNX", 3) == 0 || memcmp (s, "SWP", 3) == 0 ||
+		memcmp (s, "RAW", 3) == 0 ;
+}
+
+int atari_partition (struct gendisk *hd, struct block_device *bdev,
+		     unsigned long first_sector, int minor)
+{
+	int m_lim = minor + hd->max_p;
+	Sector sect;
+	struct rootsector *rs;
+	struct partition_info *pi;
+	u32 extensect;
+	u32 hd_size;
+#ifdef ICD_PARTS
+	int part_fmt = 0; /* 0:unknown, 1:AHDI, 2:ICD/Supra */
+#endif
+
+	rs = (struct rootsector *) read_dev_sector(bdev, 0, &sect);
+	if (!rs)
+		return -1;
+
+	/* Verify this is an Atari rootsector: */
+	hd_size = hd->part[minor - 1].nr_sects;
+	if (!VALID_PARTITION(&rs->part[0], hd_size) &&
+	    !VALID_PARTITION(&rs->part[1], hd_size) &&
+	    !VALID_PARTITION(&rs->part[2], hd_size) &&
+	    !VALID_PARTITION(&rs->part[3], hd_size)) {
+		/*
+		 * if there's no valid primary partition, assume that no Atari
+		 * format partition table (there's no reliable magic or the like
+	         * :-()
+		 */
+		put_dev_sector(sect);
+		return 0;
+	}
+
+	pi = &rs->part[0];
+	printk (" AHDI");
+	for (; pi < &rs->part[4] && minor < m_lim; minor++, pi++) {
+		struct rootsector *xrs;
+		Sector sect2;
+		ulong partsect;
+
+		if ( !(pi->flg & 1) )
+			continue;
+		/* active partition */
+		if (memcmp (pi->id, "XGM", 3) != 0) {
+			/* we don't care about other id's */
+			add_gd_partition (hd, minor, be32_to_cpu(pi->st),
+					be32_to_cpu(pi->siz));
+			continue;
+		}
+		/* extension partition */
+#ifdef ICD_PARTS
+		part_fmt = 1;
+#endif
+		printk(" XGM<");
+		partsect = extensect = be32_to_cpu(pi->st);
+		while (1) {
+			xrs = (struct rootsector *)read_dev_sector(bdev, partsect, &sect2);
+			if (!xrs) {
+				printk (" block %ld read failed\n", partsect);
+				put_dev_sector(sect);
+				return 0;
+			}
+
+			/* ++roman: sanity check: bit 0 of flg field must be set */
+			if (!(xrs->part[0].flg & 1)) {
+				printk( "\nFirst sub-partition in extended partition is not valid!\n" );
+				put_dev_sector(sect2);
+				break;
+			}
+
+			add_gd_partition(hd, minor,
+				   partsect + be32_to_cpu(xrs->part[0].st),
+				   be32_to_cpu(xrs->part[0].siz));
+
+			if (!(xrs->part[1].flg & 1)) {
+				/* end of linked partition list */
+				put_dev_sector(sect2);
+				break;
+			}
+			if (memcmp( xrs->part[1].id, "XGM", 3 ) != 0) {
+				printk("\nID of extended partition is not XGM!\n");
+				put_dev_sector(sect2);
+				break;
+			}
+
+			partsect = be32_to_cpu(xrs->part[1].st) + extensect;
+			put_dev_sector(sect2);
+			minor++;
+			if (minor >= m_lim) {
+				printk( "\nMaximum number of partitions reached!\n" );
+				break;
+			}
+		}
+		printk(" >");
+	}
+#ifdef ICD_PARTS
+	if ( part_fmt!=1 ) { /* no extended partitions -> test ICD-format */
+		pi = &rs->icdpart[0];
+		/* sanity check: no ICD format if first partition invalid */
+		if (OK_id(pi->id)) {
+			printk(" ICD<");
+			for (; pi < &rs->icdpart[8] && minor < m_lim; minor++, pi++) {
+				/* accept only GEM,BGM,RAW,LNX,SWP partitions */
+				if (!((pi->flg & 1) && OK_id(pi->id)))
+					continue;
+				part_fmt = 2;
+				add_gd_partition (hd, minor,
+						be32_to_cpu(pi->st),
+						be32_to_cpu(pi->siz));
+			}
+			printk(" >");
+		}
+	}
+#endif
+	put_dev_sector(sect);
+
+	printk ("\n");
+
+	return 1;
+}
+
diff --git a/fs/partitions/atari.h b/fs/partitions/atari.h
new file mode 100644
index 00000000000000..6a14eb75947d6b
--- /dev/null
+++ b/fs/partitions/atari.h
@@ -0,0 +1,36 @@
+/*
+ *  fs/partitions/atari.h
+ *  Moved by Russell King from:
+ *
+ * linux/include/linux/atari_rootsec.h
+ * definitions for Atari Rootsector layout
+ * by Andreas Schwab (schwab@ls5.informatik.uni-dortmund.de)
+ *
+ * modified for ICD/Supra partitioning scheme restricted to at most 12
+ * partitions
+ * by Guenther Kelleter (guenther@pool.informatik.rwth-aachen.de)
+ */
+
+struct partition_info
+{
+  u8 flg;			/* bit 0: active; bit 7: bootable */
+  char id[3];			/* "GEM", "BGM", "XGM", or other */
+  u32 st;			/* start of partition */
+  u32 siz;			/* length of partition */
+};
+
+struct rootsector
+{
+  char unused[0x156];		/* room for boot code */
+  struct partition_info icdpart[8];	/* info for ICD-partitions 5..12 */
+  char unused2[0xc];
+  u32 hd_siz;			/* size of disk in blocks */
+  struct partition_info part[4];
+  u32 bsl_st;			/* start of bad sector list */
+  u32 bsl_cnt;			/* length of bad sector list */
+  u16 checksum;			/* checksum for bootable disks */
+} __attribute__((__packed__));
+
+int atari_partition (struct gendisk *hd, struct block_device *bdev,
+		     unsigned long first_sector, int first_part_minor);
+
diff --git a/fs/partitions/check.c b/fs/partitions/check.c
new file mode 100644
index 00000000000000..323572335d781b
--- /dev/null
+++ b/fs/partitions/check.c
@@ -0,0 +1,439 @@
+/*
+ *  Code extracted from drivers/block/genhd.c
+ *  Copyright (C) 1991-1998  Linus Torvalds
+ *  Re-organised Feb 1998 Russell King
+ *
+ *  We now have independent partition support from the
+ *  block drivers, which allows all the partition code to
+ *  be grouped in one location, and it to be mostly self
+ *  contained.
+ *
+ *  Added needed MAJORS for new pairs, {hdi,hdj}, {hdk,hdl}
+ */
+
+#include <linux/config.h>
+#include <linux/fs.h>
+#include <linux/genhd.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/blk.h>
+#include <linux/init.h>
+#include <linux/raid/md.h>
+
+#include "check.h"
+
+#include "acorn.h"
+#include "amiga.h"
+#include "atari.h"
+#include "ldm.h"
+#include "mac.h"
+#include "msdos.h"
+#include "osf.h"
+#include "sgi.h"
+#include "sun.h"
+#include "ibm.h"
+#include "ultrix.h"
+#include "efi.h"
+
+extern int *blk_size[];
+
+int warn_no_part = 1; /*This is ugly: should make genhd removable media aware*/
+
+static int (*check_part[])(struct gendisk *hd, struct block_device *bdev, unsigned long first_sect, int first_minor) = {
+#ifdef CONFIG_ACORN_PARTITION
+	acorn_partition,
+#endif
+#ifdef CONFIG_SGI_PARTITION
+	sgi_partition,
+#endif
+#ifdef CONFIG_EFI_PARTITION
+	efi_partition,		/* this must come before msdos */
+#endif
+#ifdef CONFIG_LDM_PARTITION
+	ldm_partition,		/* this must come before msdos */
+#endif
+#ifdef CONFIG_MSDOS_PARTITION
+	msdos_partition,
+#endif
+#ifdef CONFIG_OSF_PARTITION
+	osf_partition,
+#endif
+#ifdef CONFIG_SUN_PARTITION
+	sun_partition,
+#endif
+#ifdef CONFIG_AMIGA_PARTITION
+	amiga_partition,
+#endif
+#ifdef CONFIG_ATARI_PARTITION
+	atari_partition,
+#endif
+#ifdef CONFIG_MAC_PARTITION
+	mac_partition,
+#endif
+#ifdef CONFIG_ULTRIX_PARTITION
+	ultrix_partition,
+#endif
+#ifdef CONFIG_IBM_PARTITION
+	ibm_partition,
+#endif
+	NULL
+};
+
+/*
+ *	This is ucking fugly but its probably the best thing for 2.4.x
+ *	Take it as a clear reminder that: 1) we should put the device name
+ *	generation in the object kdev_t points to in 2.5.
+ *	and 2) ioctls better work on half-opened devices.
+ */
+ 
+#ifdef CONFIG_ARCH_S390
+int (*genhd_dasd_name)(char*,int,int,struct gendisk*) = NULL;
+int (*genhd_dasd_ioctl)(struct inode *inp, struct file *filp,
+			    unsigned int no, unsigned long data);
+EXPORT_SYMBOL(genhd_dasd_name);
+EXPORT_SYMBOL(genhd_dasd_ioctl);
+#endif
+
+/*
+ * disk_name() is used by partition check code and the md driver.
+ * It formats the devicename of the indicated disk into
+ * the supplied buffer (of size at least 32), and returns
+ * a pointer to that same buffer (for convenience).
+ */
+
+char *disk_name (struct gendisk *hd, int minor, char *buf)
+{
+	const char *maj = hd->major_name;
+	unsigned int unit = (minor >> hd->minor_shift);
+	unsigned int part = (minor & ((1 << hd->minor_shift) -1 ));
+
+	if ((unit < hd->nr_real) && hd->part[minor].de) {
+		int pos;
+
+		pos = devfs_generate_path (hd->part[minor].de, buf, 64);
+		if (pos >= 0)
+			return buf + pos;
+	}
+
+#ifdef CONFIG_ARCH_S390
+	if (genhd_dasd_name
+	    && genhd_dasd_name (buf, unit, part, hd) == 0)
+		return buf;
+#endif
+	/*
+	 * IDE devices use multiple major numbers, but the drives
+	 * are named as:  {hda,hdb}, {hdc,hdd}, {hde,hdf}, {hdg,hdh}..
+	 * This requires special handling here.
+	 */
+	switch (hd->major) {
+		case IDE9_MAJOR:
+			unit += 2;
+		case IDE8_MAJOR:
+			unit += 2;
+		case IDE7_MAJOR:
+			unit += 2;
+		case IDE6_MAJOR:
+			unit += 2;
+		case IDE5_MAJOR:
+			unit += 2;
+		case IDE4_MAJOR:
+			unit += 2;
+		case IDE3_MAJOR:
+			unit += 2;
+		case IDE2_MAJOR:
+			unit += 2;
+		case IDE1_MAJOR:
+			unit += 2;
+		case IDE0_MAJOR:
+			maj = "hd";
+			break;
+		case MD_MAJOR:
+			sprintf(buf, "%s%d", maj, unit);
+			return buf;
+	}
+	if (hd->major >= SCSI_DISK1_MAJOR && hd->major <= SCSI_DISK7_MAJOR) {
+		unit = unit + (hd->major - SCSI_DISK1_MAJOR + 1) * 16;
+		if (unit+'a' > 'z') {
+			unit -= 26;
+			sprintf(buf, "sd%c%c", 'a' + unit / 26, 'a' + unit % 26);
+			if (part)
+				sprintf(buf + 4, "%d", part);
+			return buf;
+		}
+	}
+	if (hd->major >= COMPAQ_SMART2_MAJOR && hd->major <= COMPAQ_SMART2_MAJOR+7) {
+		int ctlr = hd->major - COMPAQ_SMART2_MAJOR;
+ 		if (part == 0)
+ 			sprintf(buf, "%s/c%dd%d", maj, ctlr, unit);
+ 		else
+ 			sprintf(buf, "%s/c%dd%dp%d", maj, ctlr, unit, part);
+ 		return buf;
+ 	}
+	if (hd->major >= COMPAQ_CISS_MAJOR && hd->major <= COMPAQ_CISS_MAJOR+7) {
+                int ctlr = hd->major - COMPAQ_CISS_MAJOR;
+                if (part == 0)
+                        sprintf(buf, "%s/c%dd%d", maj, ctlr, unit);
+                else
+                        sprintf(buf, "%s/c%dd%dp%d", maj, ctlr, unit, part);
+                return buf;
+	}
+	if (hd->major >= DAC960_MAJOR && hd->major <= DAC960_MAJOR+7) {
+		int ctlr = hd->major - DAC960_MAJOR;
+ 		if (part == 0)
+ 			sprintf(buf, "%s/c%dd%d", maj, ctlr, unit);
+ 		else
+ 			sprintf(buf, "%s/c%dd%dp%d", maj, ctlr, unit, part);
+ 		return buf;
+ 	}
+	if (hd->major == ATARAID_MAJOR) {
+		int disk = minor >> hd->minor_shift;
+		int part = minor & (( 1 << hd->minor_shift) - 1);
+		if (part == 0)
+			sprintf(buf, "%s/d%d", maj, disk);
+		else
+			sprintf(buf, "%s/d%dp%d", maj, disk, part);
+		return buf;
+	}
+	if (part)
+		sprintf(buf, "%s%c%d", maj, unit+'a', part);
+	else
+		sprintf(buf, "%s%c", maj, unit+'a');
+	return buf;
+}
+
+/*
+ * Add a partitions details to the devices partition description.
+ */
+void add_gd_partition(struct gendisk *hd, int minor, int start, int size)
+{
+#ifndef CONFIG_DEVFS_FS
+	char buf[40];
+#endif
+
+	hd->part[minor].start_sect = start;
+	hd->part[minor].nr_sects   = size;
+#ifdef CONFIG_DEVFS_FS
+	printk(" p%d", (minor & ((1 << hd->minor_shift) - 1)));
+#else
+	if ((hd->major >= COMPAQ_SMART2_MAJOR+0 && hd->major <= COMPAQ_SMART2_MAJOR+7) ||
+	    (hd->major >= COMPAQ_CISS_MAJOR+0 && hd->major <= COMPAQ_CISS_MAJOR+7))
+		printk(" p%d", (minor & ((1 << hd->minor_shift) - 1)));
+	else
+		printk(" %s", disk_name(hd, minor, buf));
+#endif
+}
+
+static void check_partition(struct gendisk *hd, kdev_t dev, int first_part_minor)
+{
+	devfs_handle_t de = NULL;
+	static int first_time = 1;
+	unsigned long first_sector;
+	struct block_device *bdev;
+	char buf[64];
+	int i;
+
+	if (first_time)
+		printk(KERN_INFO "Partition check:\n");
+	first_time = 0;
+	first_sector = hd->part[MINOR(dev)].start_sect;
+
+	/*
+	 * This is a kludge to allow the partition check to be
+	 * skipped for specific drives (e.g. IDE CD-ROM drives)
+	 */
+	if ((int)first_sector == -1) {
+		hd->part[MINOR(dev)].start_sect = 0;
+		return;
+	}
+
+	if (hd->de_arr)
+		de = hd->de_arr[MINOR(dev) >> hd->minor_shift];
+	i = devfs_generate_path (de, buf, sizeof buf);
+	if (i >= 0)
+		printk(KERN_INFO " /dev/%s:", buf + i);
+	else
+		printk(KERN_INFO " %s:", disk_name(hd, MINOR(dev), buf));
+	bdev = bdget(kdev_t_to_nr(dev));
+	bdev->bd_inode->i_size = (loff_t)hd->part[MINOR(dev)].nr_sects << 9;
+	bdev->bd_inode->i_blkbits = blksize_bits(block_size(dev));
+	for (i = 0; check_part[i]; i++) {
+		int res;
+		res = check_part[i](hd, bdev, first_sector, first_part_minor);
+		if (res) {
+			if (res < 0 &&  warn_no_part)
+				printk(" unable to read partition table\n");
+			goto setup_devfs;
+		}
+	}
+
+	printk(" unknown partition table\n");
+setup_devfs:
+	invalidate_bdev(bdev, 1);
+	truncate_inode_pages(bdev->bd_inode->i_mapping, 0);
+	bdput(bdev);
+	i = first_part_minor - 1;
+	devfs_register_partitions (hd, i, hd->sizes ? 0 : 1);
+}
+
+#ifdef CONFIG_DEVFS_FS
+static void devfs_register_partition (struct gendisk *dev, int minor, int part)
+{
+	int devnum = minor >> dev->minor_shift;
+	devfs_handle_t dir;
+	unsigned int devfs_flags = DEVFS_FL_DEFAULT;
+	char devname[16];
+
+	if (dev->part[minor + part].de) return;
+	dir = devfs_get_parent (dev->part[minor].de);
+	if (!dir) return;
+	if ( dev->flags && (dev->flags[devnum] & GENHD_FL_REMOVABLE) )
+		devfs_flags |= DEVFS_FL_REMOVABLE;
+	sprintf (devname, "part%d", part);
+	dev->part[minor + part].de =
+	    devfs_register (dir, devname, devfs_flags,
+			    dev->major, minor + part,
+			    S_IFBLK | S_IRUSR | S_IWUSR,
+			    dev->fops, NULL);
+}
+
+static struct unique_numspace disc_numspace = UNIQUE_NUMBERSPACE_INITIALISER;
+
+static void devfs_register_disc (struct gendisk *dev, int minor)
+{
+	int pos = 0;
+	int devnum = minor >> dev->minor_shift;
+	devfs_handle_t dir, slave;
+	unsigned int devfs_flags = DEVFS_FL_DEFAULT;
+	char dirname[64], symlink[16];
+	static devfs_handle_t devfs_handle;
+
+	if (dev->part[minor].de) return;
+	if ( dev->flags && (dev->flags[devnum] & GENHD_FL_REMOVABLE) )
+		devfs_flags |= DEVFS_FL_REMOVABLE;
+	if (dev->de_arr) {
+		dir = dev->de_arr[devnum];
+		if (!dir)  /*  Aware driver wants to block disc management  */
+			return;
+		pos = devfs_generate_path (dir, dirname + 3, sizeof dirname-3);
+		if (pos < 0) return;
+		strncpy (dirname + pos, "../", 3);
+	}
+	else {
+		/*  Unaware driver: construct "real" directory  */
+		sprintf (dirname, "../%s/disc%d", dev->major_name, devnum);
+		dir = devfs_mk_dir (NULL, dirname + 3, NULL);
+	}
+	if (!devfs_handle)
+		devfs_handle = devfs_mk_dir (NULL, "discs", NULL);
+	dev->part[minor].number = devfs_alloc_unique_number (&disc_numspace);
+	sprintf (symlink, "disc%d", dev->part[minor].number);
+	devfs_mk_symlink (devfs_handle, symlink, DEVFS_FL_DEFAULT,
+			  dirname + pos, &slave, NULL);
+	dev->part[minor].de =
+	    devfs_register (dir, "disc", devfs_flags, dev->major, minor,
+			    S_IFBLK | S_IRUSR | S_IWUSR, dev->fops, NULL);
+	devfs_auto_unregister (dev->part[minor].de, slave);
+	if (!dev->de_arr)
+		devfs_auto_unregister (slave, dir);
+}
+#endif  /*  CONFIG_DEVFS_FS  */
+
+void devfs_register_partitions (struct gendisk *dev, int minor, int unregister)
+{
+#ifdef CONFIG_DEVFS_FS
+	int part;
+
+	if (!unregister)
+		devfs_register_disc (dev, minor);
+	for (part = 1; part < dev->max_p; part++) {
+		if ( unregister || (dev->part[minor].nr_sects < 1) ||
+		     (dev->part[part + minor].nr_sects < 1) ) {
+			devfs_unregister (dev->part[part + minor].de);
+			dev->part[part + minor].de = NULL;
+			continue;
+		}
+		devfs_register_partition (dev, minor, part);
+	}
+	if (unregister) {
+		devfs_unregister (dev->part[minor].de);
+		dev->part[minor].de = NULL;
+		devfs_dealloc_unique_number (&disc_numspace,
+					     dev->part[minor].number);
+	}
+#endif  /*  CONFIG_DEVFS_FS  */
+}
+
+/*
+ * This function will re-read the partition tables for a given device,
+ * and set things back up again.  There are some important caveats,
+ * however.  You must ensure that no one is using the device, and no one
+ * can start using the device while this function is being executed.
+ *
+ * Much of the cleanup from the old partition tables should have already been
+ * done
+ */
+
+void register_disk(struct gendisk *gdev, kdev_t dev, unsigned minors,
+	struct block_device_operations *ops, long size)
+{
+	if (!gdev)
+		return;
+	grok_partitions(gdev, MINOR(dev)>>gdev->minor_shift, minors, size);
+}
+
+void grok_partitions(struct gendisk *dev, int drive, unsigned minors, long size)
+{
+	int i;
+	int first_minor	= drive << dev->minor_shift;
+	int end_minor	= first_minor + dev->max_p;
+
+	if(!dev->sizes)
+		blk_size[dev->major] = NULL;
+
+	dev->part[first_minor].nr_sects = size;
+	/* No such device or no minors to use for partitions */
+	if ( !size && dev->flags && (dev->flags[drive] & GENHD_FL_REMOVABLE) )
+		devfs_register_partitions (dev, first_minor, 0);
+	if (!size || minors == 1)
+		return;
+
+	if (dev->sizes) {
+		dev->sizes[first_minor] = size >> (BLOCK_SIZE_BITS - 9);
+		for (i = first_minor + 1; i < end_minor; i++)
+			dev->sizes[i] = 0;
+	}
+	blk_size[dev->major] = dev->sizes;
+	check_partition(dev, MKDEV(dev->major, first_minor), 1 + first_minor);
+
+ 	/*
+ 	 * We need to set the sizes array before we will be able to access
+ 	 * any of the partitions on this device.
+ 	 */
+	if (dev->sizes != NULL) {	/* optional safeguard in ll_rw_blk.c */
+		for (i = first_minor; i < end_minor; i++)
+			dev->sizes[i] = dev->part[i].nr_sects >> (BLOCK_SIZE_BITS - 9);
+	}
+}
+
+unsigned char *read_dev_sector(struct block_device *bdev, unsigned long n, Sector *p)
+{
+	struct address_space *mapping = bdev->bd_inode->i_mapping;
+	int sect = PAGE_CACHE_SIZE / 512;
+	struct page *page;
+
+	page = read_cache_page(mapping, n/sect,
+			(filler_t *)mapping->a_ops->readpage, NULL);
+	if (!IS_ERR(page)) {
+		wait_on_page(page);
+		if (!Page_Uptodate(page))
+			goto fail;
+		if (PageError(page))
+			goto fail;
+		p->v = page;
+		return (unsigned char *)page_address(page) + 512 * (n % sect);
+fail:
+		page_cache_release(page);
+	}
+	p->v = NULL;
+	return NULL;
+}
diff --git a/fs/partitions/check.h b/fs/partitions/check.h
new file mode 100644
index 00000000000000..32d7940469a406
--- /dev/null
+++ b/fs/partitions/check.h
@@ -0,0 +1,16 @@
+/*
+ * add_partition adds a partitions details to the devices partition
+ * description.
+ */
+void add_gd_partition(struct gendisk *hd, int minor, int start, int size);
+
+typedef struct {struct page *v;} Sector;
+
+unsigned char *read_dev_sector(struct block_device *, unsigned long, Sector *);
+
+static inline void put_dev_sector(Sector p)
+{
+	page_cache_release(p.v);
+}
+
+extern int warn_no_part;
diff --git a/fs/partitions/efi.c b/fs/partitions/efi.c
new file mode 100644
index 00000000000000..8ae4908f0758c4
--- /dev/null
+++ b/fs/partitions/efi.c
@@ -0,0 +1,738 @@
+/************************************************************
+ * EFI GUID Partition Table handling
+ * Per Intel EFI Specification v1.02
+ * http://developer.intel.com/technology/efi/efi.htm
+ * efi.[ch] by Matt Domsch <Matt_Domsch@dell.com>
+ *   Copyright 2000,2001,2002 Dell Computer Corporation
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ *
+ * TODO:
+ *
+ * Changelog:
+ * Wed  Mar 27 2002 Matt Domsch <Matt_Domsch@dell.com>
+ * - Ported to 2.5.7-pre1 and 2.4.18
+ * - Applied patch to avoid fault in alternate header handling
+ * - cleaned up find_valid_gpt
+ * - On-disk structure and copy in memory is *always* LE now - 
+ *   swab fields as needed
+ * - remove print_gpt_header()
+ * - only use first max_p partition entries, to keep the kernel minor number
+ *   and partition numbers tied.
+ * - 2.4.18 patch needs own crc32() function - there's no official
+ *   lib/crc32.c in 2.4.x.
+ *
+ * Mon  Feb 04 2002 Matt Domsch <Matt_Domsch@dell.com>
+ * - Removed __PRIPTR_PREFIX - not being used
+ *
+ * Mon  Jan 14 2002 Matt Domsch <Matt_Domsch@dell.com>
+ * - Ported to 2.5.2-pre11 + library crc32 patch Linus applied
+ *
+ * Thu Dec 6 2001 Matt Domsch <Matt_Domsch@dell.com>
+ * - Added compare_gpts().
+ * - moved le_efi_guid_to_cpus() back into this file.  GPT is the only
+ *   thing that keeps EFI GUIDs on disk.
+ * - Changed gpt structure names and members to be simpler and more Linux-like.
+ * 
+ * Wed Oct 17 2001 Matt Domsch <Matt_Domsch@dell.com>
+ * - Removed CONFIG_DEVFS_VOLUMES_UUID code entirely per Martin Wilck
+ *
+ * Wed Oct 10 2001 Matt Domsch <Matt_Domsch@dell.com>
+ * - Changed function comments to DocBook style per Andreas Dilger suggestion.
+ *
+ * Mon Oct 08 2001 Matt Domsch <Matt_Domsch@dell.com>
+ * - Change read_lba() to use the page cache per Al Viro's work.
+ * - print u64s properly on all architectures
+ * - fixed debug_printk(), now Dprintk()
+ *
+ * Mon Oct 01 2001 Matt Domsch <Matt_Domsch@dell.com>
+ * - Style cleanups
+ * - made most functions static
+ * - Endianness addition
+ * - remove test for second alternate header, as it's not per spec,
+ *   and is unnecessary.  There's now a method to read/write the last
+ *   sector of an odd-sized disk from user space.  No tools have ever
+ *   been released which used this code, so it's effectively dead.
+ * - Per Asit Mallick of Intel, added a test for a valid PMBR.
+ * - Added kernel command line option 'gpt' to override valid PMBR test.
+ *
+ * Wed Jun  6 2001 Martin Wilck <Martin.Wilck@Fujitsu-Siemens.com>
+ * - added devfs volume UUID support (/dev/volumes/uuids) for
+ *   mounting file systems by the partition GUID. 
+ *
+ * Tue Dec  5 2000 Matt Domsch <Matt_Domsch@dell.com>
+ * - Moved crc32() to linux/lib, added efi_crc32().
+ *
+ * Thu Nov 30 2000 Matt Domsch <Matt_Domsch@dell.com>
+ * - Replaced Intel's CRC32 function with an equivalent
+ *   non-license-restricted version.
+ *
+ * Wed Oct 25 2000 Matt Domsch <Matt_Domsch@dell.com>
+ * - Fixed the last_lba() call to return the proper last block
+ *
+ * Thu Oct 12 2000 Matt Domsch <Matt_Domsch@dell.com>
+ * - Thanks to Andries Brouwer for his debugging assistance.
+ * - Code works, detects all the partitions.
+ *
+ ************************************************************/
+#include <linux/config.h>
+#include <linux/fs.h>
+#include <linux/genhd.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/string.h>
+#include <linux/blk.h>
+#include <linux/blkpg.h>
+#include <linux/slab.h>
+#include <linux/smp_lock.h>
+#include <linux/init.h>
+#include <linux/crc32.h>
+#include <asm/system.h>
+#include <asm/byteorder.h>
+#include "check.h"
+#include "efi.h"
+
+#if CONFIG_BLK_DEV_MD
+extern void md_autodetect_dev(kdev_t dev);
+#endif
+
+/* Handle printing of 64-bit values */
+/* Borrowed from /usr/include/inttypes.h */
+# if BITS_PER_LONG == 64 
+#  define __PRI64_PREFIX	"l"
+# else
+#  define __PRI64_PREFIX	"ll"
+# endif
+# define PRIx64		__PRI64_PREFIX "x"
+
+
+#undef EFI_DEBUG
+#ifdef EFI_DEBUG
+#define Dprintk(x...) printk(KERN_DEBUG x)
+#else
+#define Dprintk(x...)
+#endif
+
+/* This allows a kernel command line option 'gpt' to override
+ * the test for invalid PMBR.  Not __initdata because reloading
+ * the partition tables happens after init too.
+ */
+static int force_gpt;
+static int __init
+force_gpt_fn(char *str)
+{
+	force_gpt = 1;
+	return 1;
+}
+__setup("gpt", force_gpt_fn);
+
+/**
+ * efi_crc32() - EFI version of crc32 function
+ * @buf: buffer to calculate crc32 of
+ * @len - length of buf
+ *
+ * Description: Returns EFI-style CRC32 value for @buf
+ * 
+ * This function uses the little endian Ethernet polynomial
+ * but seeds the function with ~0, and xor's with ~0 at the end.
+ * Note, the EFI Specification, v1.02, has a reference to
+ * Dr. Dobbs Journal, May 1994 (actually it's in May 1992).
+ */
+static inline u32
+efi_crc32(const void *buf, unsigned long len)
+{
+	return (crc32(~0L, buf, len) ^ ~0L);
+}
+
+/**
+ * is_pmbr_valid(): test Protective MBR for validity
+ * @mbr: pointer to a legacy mbr structure
+ *
+ * Description: Returns 1 if PMBR is valid, 0 otherwise.
+ * Validity depends on two things:
+ *  1) MSDOS signature is in the last two bytes of the MBR
+ *  2) One partition of type 0xEE is found
+ */
+static int
+is_pmbr_valid(legacy_mbr *mbr)
+{
+	int i, found = 0, signature = 0;
+	if (!mbr)
+		return 0;
+	signature = (le16_to_cpu(mbr->signature) == MSDOS_MBR_SIGNATURE);
+	for (i = 0; signature && i < 4; i++) {
+		if (mbr->partition_record[i].sys_ind ==
+                    EFI_PMBR_OSTYPE_EFI_GPT) {
+			found = 1;
+			break;
+		}
+	}
+	return (signature && found);
+}
+
+/**
+ * last_lba(): return number of last logical block of device
+ * @hd: gendisk with partition list
+ * @bdev: block device
+ * 
+ * Description: Returns last LBA value on success, 0 on error.
+ * This is stored (by sd and ide-geometry) in
+ *  the part[0] entry for this disk, and is the number of
+ *  physical sectors available on the disk.
+ */
+static u64
+last_lba(struct gendisk *hd, struct block_device *bdev)
+{
+	if (!hd || !hd->part || !bdev)
+		return 0;
+	return hd->part[MINOR(to_kdev_t(bdev->bd_dev))].nr_sects - 1;
+}
+
+/**
+ * read_lba(): Read bytes from disk, starting at given LBA
+ * @hd
+ * @bdev
+ * @lba
+ * @buffer
+ * @size_t
+ *
+ * Description:  Reads @count bytes from @bdev into @buffer.
+ * Returns number of bytes read on success, 0 on error.
+ */
+static size_t
+read_lba(struct gendisk *hd, struct block_device *bdev, u64 lba,
+	 u8 * buffer, size_t count)
+{
+
+	size_t totalreadcount = 0, bytesread = 0;
+	unsigned long blocksize;
+	int i;
+	Sector sect;
+	unsigned char *data = NULL;
+
+	if (!hd || !bdev || !buffer || !count)
+		return 0;
+
+	blocksize = get_hardsect_size(to_kdev_t(bdev->bd_dev));
+	if (!blocksize)
+		blocksize = 512;
+
+	for (i = 0; count > 0; i++) {
+		data = read_dev_sector(bdev, lba, &sect);
+		if (!data)
+			return totalreadcount;
+
+		bytesread =
+		    PAGE_CACHE_SIZE - (data -
+				       (unsigned char *) page_address(sect.v));
+		bytesread = min(bytesread, count);
+		memcpy(buffer, data, bytesread);
+		put_dev_sector(sect);
+
+		buffer += bytesread;
+		totalreadcount += bytesread;
+		count -= bytesread;
+		lba += (bytesread / blocksize);
+	}
+	return totalreadcount;
+}
+
+
+/**
+ * alloc_read_gpt_entries(): reads partition entries from disk
+ * @hd
+ * @bdev
+ * @gpt - GPT header
+ * 
+ * Description: Returns ptes on success,  NULL on error.
+ * Allocates space for PTEs based on information found in @gpt.
+ * Notes: remember to free pte when you're done!
+ */
+static gpt_entry *
+alloc_read_gpt_entries(struct gendisk *hd,
+		       struct block_device *bdev, gpt_header *gpt)
+{
+	size_t count;
+	gpt_entry *pte;
+	if (!hd || !bdev || !gpt)
+		return NULL;
+
+	count = le32_to_cpu(gpt->num_partition_entries) *
+                le32_to_cpu(gpt->sizeof_partition_entry);
+	if (!count)
+		return NULL;
+	pte = kmalloc(count, GFP_KERNEL);
+	if (!pte)
+		return NULL;
+	memset(pte, 0, count);
+
+	if (read_lba(hd, bdev, le64_to_cpu(gpt->partition_entry_lba),
+                     (u8 *) pte,
+		     count) < count) {
+		kfree(pte);
+                pte=NULL;
+		return NULL;
+	}
+	return pte;
+}
+
+/**
+ * alloc_read_gpt_header(): Allocates GPT header, reads into it from disk
+ * @hd
+ * @bdev
+ * @lba is the Logical Block Address of the partition table
+ * 
+ * Description: returns GPT header on success, NULL on error.   Allocates
+ * and fills a GPT header starting at @ from @bdev.
+ * Note: remember to free gpt when finished with it.
+ */
+static gpt_header *
+alloc_read_gpt_header(struct gendisk *hd, struct block_device *bdev, u64 lba)
+{
+	gpt_header *gpt;
+	if (!hd || !bdev)
+		return NULL;
+
+	gpt = kmalloc(sizeof (gpt_header), GFP_KERNEL);
+	if (!gpt)
+		return NULL;
+	memset(gpt, 0, sizeof (gpt_header));
+
+	if (read_lba(hd, bdev, lba, (u8 *) gpt,
+		     sizeof (gpt_header)) < sizeof (gpt_header)) {
+		kfree(gpt);
+                gpt=NULL;
+		return NULL;
+	}
+
+	return gpt;
+}
+
+/**
+ * is_gpt_valid() - tests one GPT header and PTEs for validity
+ * @hd
+ * @bdev
+ * @lba is the logical block address of the GPT header to test
+ * @gpt is a GPT header ptr, filled on return.
+ * @ptes is a PTEs ptr, filled on return.
+ *
+ * Description: returns 1 if valid,  0 on error.
+ * If valid, returns pointers to newly allocated GPT header and PTEs.
+ */
+static int
+is_gpt_valid(struct gendisk *hd, struct block_device *bdev, u64 lba,
+	     gpt_header **gpt, gpt_entry **ptes)
+{
+	u32 crc, origcrc;
+
+	if (!hd || !bdev || !gpt || !ptes)
+		return 0;
+	if (!(*gpt = alloc_read_gpt_header(hd, bdev, lba)))
+		return 0;
+
+	/* Check the GUID Partition Table signature */
+	if (le64_to_cpu((*gpt)->signature) != GPT_HEADER_SIGNATURE) {
+		Dprintk("GUID Partition Table Header signature is wrong: %"
+			PRIx64 " != %" PRIx64 "\n", le64_to_cpu((*gpt)->signature),
+			GPT_HEADER_SIGNATURE);
+		kfree(*gpt);
+		*gpt = NULL;
+		return 0;
+	}
+
+	/* Check the GUID Partition Table CRC */
+	origcrc = le32_to_cpu((*gpt)->header_crc32);
+	(*gpt)->header_crc32 = 0;
+	crc = efi_crc32((const unsigned char *) (*gpt), le32_to_cpu((*gpt)->header_size));
+
+	if (crc != origcrc) {
+		Dprintk
+		    ("GUID Partition Table Header CRC is wrong: %x != %x\n",
+		     crc, origcrc);
+		kfree(*gpt);
+		*gpt = NULL;
+		return 0;
+	}
+	(*gpt)->header_crc32 = cpu_to_le32(origcrc);
+
+	/* Check that the my_lba entry points to the LBA that contains
+	 * the GUID Partition Table */
+	if (le64_to_cpu((*gpt)->my_lba) != lba) {
+		Dprintk("GPT my_lba incorrect: %" PRIx64 " != %" PRIx64 "\n",
+			le64_to_cpu((*gpt)->my_lba), lba);
+		kfree(*gpt);
+		*gpt = NULL;
+		return 0;
+	}
+
+	if (!(*ptes = alloc_read_gpt_entries(hd, bdev, *gpt))) {
+		kfree(*gpt);
+		*gpt = NULL;
+		return 0;
+	}
+
+	/* Check the GUID Partition Entry Array CRC */
+	crc = efi_crc32((const unsigned char *) (*ptes),
+			le32_to_cpu((*gpt)->num_partition_entries) *
+			le32_to_cpu((*gpt)->sizeof_partition_entry));
+
+	if (crc != le32_to_cpu((*gpt)->partition_entry_array_crc32)) {
+		Dprintk("GUID Partitition Entry Array CRC check failed.\n");
+		kfree(*gpt);
+		*gpt = NULL;
+		kfree(*ptes);
+		*ptes = NULL;
+		return 0;
+	}
+
+	/* We're done, all's well */
+	return 1;
+}
+
+/**
+ * compare_gpts() - Search disk for valid GPT headers and PTEs
+ * @pgpt is the primary GPT header
+ * @agpt is the alternate GPT header
+ * @lastlba is the last LBA number
+ * Description: Returns nothing.  Sanity checks pgpt and agpt fields
+ * and prints warnings on discrepancies.
+ * 
+ */
+static void
+compare_gpts(gpt_header *pgpt, gpt_header *agpt, u64 lastlba)
+{
+	int error_found = 0;
+	if (!pgpt || !agpt)
+		return;
+	if (le64_to_cpu(pgpt->my_lba) != le64_to_cpu(agpt->alternate_lba)) {
+		printk(KERN_WARNING
+		       "GPT:Primary header LBA != Alt. header alternate_lba\n");
+		printk(KERN_WARNING "GPT:%" PRIx64 " != %" PRIx64 "\n",
+		       le64_to_cpu(pgpt->my_lba),
+                       le64_to_cpu(agpt->alternate_lba));
+		error_found++;
+	}
+	if (le64_to_cpu(pgpt->alternate_lba) != le64_to_cpu(agpt->my_lba)) {
+		printk(KERN_WARNING
+		       "GPT:Primary header alternate_lba != Alt. header my_lba\n");
+		printk(KERN_WARNING "GPT:%" PRIx64 " != %" PRIx64 "\n",
+		       le64_to_cpu(pgpt->alternate_lba),
+                       le64_to_cpu(agpt->my_lba));
+		error_found++;
+	}
+	if (le64_to_cpu(pgpt->first_usable_lba) !=
+            le64_to_cpu(agpt->first_usable_lba)) {
+		printk(KERN_WARNING "GPT:first_usable_lbas don't match.\n");
+		printk(KERN_WARNING "GPT:%" PRIx64 " != %" PRIx64 "\n",
+		       le64_to_cpu(pgpt->first_usable_lba),
+                       le64_to_cpu(agpt->first_usable_lba));
+		error_found++;
+	}
+	if (le64_to_cpu(pgpt->last_usable_lba) !=
+            le64_to_cpu(agpt->last_usable_lba)) {
+		printk(KERN_WARNING "GPT:last_usable_lbas don't match.\n");
+		printk(KERN_WARNING "GPT:%" PRIx64 " != %" PRIx64 "\n",
+		       le64_to_cpu(pgpt->last_usable_lba),
+                       le64_to_cpu(agpt->last_usable_lba));
+		error_found++;
+	}
+	if (efi_guidcmp(pgpt->disk_guid, agpt->disk_guid)) {
+		printk(KERN_WARNING "GPT:disk_guids don't match.\n");
+		error_found++;
+	}
+	if (le32_to_cpu(pgpt->num_partition_entries) !=
+            le32_to_cpu(agpt->num_partition_entries)) {
+		printk(KERN_WARNING "GPT:num_partition_entries don't match: "
+		       "0x%x != 0x%x\n",
+		       le32_to_cpu(pgpt->num_partition_entries),
+		       le32_to_cpu(agpt->num_partition_entries));
+		error_found++;
+	}
+	if (le32_to_cpu(pgpt->sizeof_partition_entry) !=
+            le32_to_cpu(agpt->sizeof_partition_entry)) {
+		printk(KERN_WARNING
+		       "GPT:sizeof_partition_entry values don't match: "
+		       "0x%x != 0x%x\n",
+                       le32_to_cpu(pgpt->sizeof_partition_entry),
+		       le32_to_cpu(agpt->sizeof_partition_entry));
+		error_found++;
+	}
+	if (le32_to_cpu(pgpt->partition_entry_array_crc32) !=
+            le32_to_cpu(agpt->partition_entry_array_crc32)) {
+		printk(KERN_WARNING
+		       "GPT:partition_entry_array_crc32 values don't match: "
+		       "0x%x != 0x%x\n",
+                       le32_to_cpu(pgpt->partition_entry_array_crc32),
+		       le32_to_cpu(agpt->partition_entry_array_crc32));
+		error_found++;
+	}
+	if (le64_to_cpu(pgpt->alternate_lba) != lastlba) {
+		printk(KERN_WARNING
+		       "GPT:Primary header thinks Alt. header is not at the end of the disk.\n");
+		printk(KERN_WARNING "GPT:%" PRIx64 " != %" PRIx64 "\n",
+		       le64_to_cpu(pgpt->alternate_lba), lastlba);
+		error_found++;
+	}
+
+	if (le64_to_cpu(agpt->my_lba) != lastlba) {
+		printk(KERN_WARNING
+		       "GPT:Alternate GPT header not at the end of the disk.\n");
+		printk(KERN_WARNING "GPT:%" PRIx64 " != %" PRIx64 "\n",
+		       le64_to_cpu(agpt->my_lba), lastlba);
+		error_found++;
+	}
+
+	if (error_found)
+		printk(KERN_WARNING
+		       "GPT: Use GNU Parted to correct GPT errors.\n");
+	return;
+}
+
+/**
+ * find_valid_gpt() - Search disk for valid GPT headers and PTEs
+ * @hd
+ * @bdev
+ * @gpt is a GPT header ptr, filled on return.
+ * @ptes is a PTEs ptr, filled on return.
+ * Description: Returns 1 if valid, 0 on error.
+ * If valid, returns pointers to newly allocated GPT header and PTEs.
+ * Validity depends on finding either the Primary GPT header and PTEs valid,
+ * or the Alternate GPT header and PTEs valid, and the PMBR valid.
+ */
+static int
+find_valid_gpt(struct gendisk *hd, struct block_device *bdev,
+	       gpt_header **gpt, gpt_entry **ptes)
+{
+	int good_pgpt = 0, good_agpt = 0, good_pmbr = 0;
+	gpt_header *pgpt = NULL, *agpt = NULL;
+	gpt_entry *pptes = NULL, *aptes = NULL;
+	legacy_mbr *legacymbr = NULL;
+	u64 lastlba;
+	if (!hd || !bdev || !gpt || !ptes)
+		return 0;
+
+	lastlba = last_lba(hd, bdev);
+	good_pgpt = is_gpt_valid(hd, bdev, GPT_PRIMARY_PARTITION_TABLE_LBA,
+				 &pgpt, &pptes);
+        if (good_pgpt) {
+		good_agpt = is_gpt_valid(hd, bdev,
+                                         le64_to_cpu(pgpt->alternate_lba),
+					 &agpt, &aptes);
+                if (!good_agpt) {
+                        good_agpt = is_gpt_valid(hd, bdev, lastlba,
+                                                 &agpt, &aptes);
+                }
+        }
+        else {
+                good_agpt = is_gpt_valid(hd, bdev, lastlba,
+                                         &agpt, &aptes);
+        }
+
+        /* The obviously unsuccessful case */
+        if (!good_pgpt && !good_agpt) {
+                goto fail;
+        }
+
+	/* This will be added to the EFI Spec. per Intel after v1.02. */
+        legacymbr = kmalloc(sizeof (*legacymbr), GFP_KERNEL);
+        if (legacymbr) {
+                memset(legacymbr, 0, sizeof (*legacymbr));
+                read_lba(hd, bdev, 0, (u8 *) legacymbr,
+                         sizeof (*legacymbr));
+                good_pmbr = is_pmbr_valid(legacymbr);
+                kfree(legacymbr);
+                legacymbr=NULL;
+        }
+
+        /* Failure due to bad PMBR */
+        if ((good_pgpt || good_agpt) && !good_pmbr && !force_gpt) {
+                printk(KERN_WARNING 
+                       "  Warning: Disk has a valid GPT signature "
+                       "but invalid PMBR.\n");
+                printk(KERN_WARNING
+                       "  Assuming this disk is *not* a GPT disk anymore.\n");
+                printk(KERN_WARNING
+                       "  Use gpt kernel option to override.  "
+                       "Use GNU Parted to correct disk.\n");
+                goto fail;
+        }
+
+        /* Would fail due to bad PMBR, but force GPT anyhow */
+        if ((good_pgpt || good_agpt) && !good_pmbr && force_gpt) {
+                printk(KERN_WARNING
+                       "  Warning: Disk has a valid GPT signature but "
+                       "invalid PMBR.\n");
+                printk(KERN_WARNING
+                       "  Use GNU Parted to correct disk.\n");
+                printk(KERN_WARNING
+                       "  gpt option taken, disk treated as GPT.\n");
+        }
+
+        compare_gpts(pgpt, agpt, lastlba);
+
+        /* The good cases */
+        if (good_pgpt && (good_pmbr || force_gpt)) {
+                *gpt  = pgpt;
+                *ptes = pptes;
+                if (agpt)  { kfree(agpt);   agpt = NULL; }
+                if (aptes) { kfree(aptes); aptes = NULL; }
+                if (!good_agpt) {
+                        printk(KERN_WARNING 
+			       "Alternate GPT is invalid, "
+                               "using primary GPT.\n");
+                }
+                return 1;
+        }
+        else if (good_agpt && (good_pmbr || force_gpt)) {
+                *gpt  = agpt;
+                *ptes = aptes;
+                if (pgpt)  { kfree(pgpt);   pgpt = NULL; }
+                if (pptes) { kfree(pptes); pptes = NULL; }
+                printk(KERN_WARNING 
+                       "Primary GPT is invalid, using alternate GPT.\n");
+                return 1;
+        }
+
+ fail:
+        if (pgpt)  { kfree(pgpt);   pgpt=NULL; }
+        if (agpt)  { kfree(agpt);   agpt=NULL; }
+        if (pptes) { kfree(pptes); pptes=NULL; }
+        if (aptes) { kfree(aptes); aptes=NULL; }
+        *gpt = NULL;
+        *ptes = NULL;
+        return 0;
+}
+
+/**
+ * add_gpt_partitions(struct gendisk *hd, struct block_device *bdev,
+ * @hd
+ * @bdev
+ *
+ * Description: Create devices for each entry in the GUID Partition Table
+ * Entries.
+ *
+ * We do not create a Linux partition for GPT, but
+ * only for the actual data partitions.
+ * Returns:
+ * -1 if unable to read the partition table
+ *  0 if this isn't our partition table
+ *  1 if successful
+ *
+ */
+static int
+add_gpt_partitions(struct gendisk *hd, struct block_device *bdev, int nextminor)
+{
+	gpt_header *gpt = NULL;
+	gpt_entry *ptes = NULL;
+	u32 i;
+	int max_p; 
+
+	if (!hd || !bdev)
+		return -1;
+
+	if (!find_valid_gpt(hd, bdev, &gpt, &ptes) || !gpt || !ptes) {
+		if (gpt) {
+			kfree(gpt);
+                        gpt = NULL;
+                }
+		if (ptes) {
+			kfree(ptes);
+                        ptes = NULL;
+                }
+		return 0;
+	}
+
+	Dprintk("GUID Partition Table is valid!  Yea!\n");
+
+	max_p = (1 << hd->minor_shift) - 1;
+	for (i = 0; i < le32_to_cpu(gpt->num_partition_entries) && i < max_p; i++) {
+		if (!efi_guidcmp(ptes[i].partition_type_guid, NULL_GUID))
+			continue;
+
+		add_gd_partition(hd, nextminor+i,
+                                 le64_to_cpu(ptes[i].starting_lba),
+				 (le64_to_cpu(ptes[i].ending_lba) -
+                                  le64_to_cpu(ptes[i].starting_lba) +
+				  1));
+
+		/* If there's this is a RAID volume, tell md */
+#if CONFIG_BLK_DEV_MD
+		if (!efi_guidcmp(ptes[i].partition_type_guid,
+                                 PARTITION_LINUX_RAID_GUID)) {
+                        md_autodetect_dev(MKDEV
+                                          (MAJOR(to_kdev_t(bdev->bd_dev)),
+                                           nextminor+i));
+		}
+#endif
+	}
+	kfree(ptes);
+        ptes=NULL;
+	kfree(gpt);
+        gpt=NULL;
+	printk("\n");
+	return 1;
+}
+
+/**
+ * efi_partition(): EFI GPT partition handling entry function
+ * @hd
+ * @bdev
+ * @first_sector: unused
+ * @first_part_minor: minor number assigned to first GPT partition found
+ *
+ * Description: called from check.c, if the disk contains GPT
+ * partitions, sets up partition entries in the kernel.
+ *
+ * If the first block on the disk is a legacy MBR,
+ * it will get handled by msdos_partition().
+ * If it's a Protective MBR, we'll handle it here.
+ *
+ * set_blocksize() calls are necessary to be able to read
+ * a disk with an odd number of 512-byte sectors, as the
+ * default BLOCK_SIZE of 1024 bytes won't let that last
+ * sector be read otherwise.
+ *
+ * Returns:
+ * -1 if unable to read the partition table
+ *  0 if this isn't our partitoin table
+ *  1 if successful
+ */
+int
+efi_partition(struct gendisk *hd, struct block_device *bdev,
+	      unsigned long first_sector, int first_part_minor)
+{
+
+	kdev_t dev = to_kdev_t(bdev->bd_dev);
+	int hardblocksize = get_hardsect_size(dev);
+	int orig_blksize_size = BLOCK_SIZE;
+	int rc = 0;
+
+	/* Need to change the block size that the block layer uses */
+	if (blksize_size[MAJOR(dev)]) {
+                orig_blksize_size = blksize_size[MAJOR(dev)][MINOR(dev)];
+	}
+
+	if (orig_blksize_size != hardblocksize)
+		set_blocksize(dev, hardblocksize);
+
+	rc = add_gpt_partitions(hd, bdev, first_part_minor);
+
+	/* change back */
+	if (orig_blksize_size != hardblocksize)
+		set_blocksize(dev, orig_blksize_size);
+
+	return rc;
+}
diff --git a/fs/partitions/efi.h b/fs/partitions/efi.h
new file mode 100644
index 00000000000000..fcf586278f78a5
--- /dev/null
+++ b/fs/partitions/efi.h
@@ -0,0 +1,115 @@
+/************************************************************
+ * EFI GUID Partition Table
+ * Per Intel EFI Specification v1.02
+ * http://developer.intel.com/technology/efi/efi.htm
+ *
+ * By Matt Domsch <Matt_Domsch@dell.com>  Fri Sep 22 22:15:56 CDT 2000  
+ *   Copyright 2000,2001 Dell Computer Corporation
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ * 
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ * 
+ ************************************************************/
+
+#ifndef FS_PART_EFI_H_INCLUDED
+#define FS_PART_EFI_H_INCLUDED
+
+#include <linux/types.h>
+#include <linux/config.h>
+#include <linux/fs.h>
+#include <linux/genhd.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/string.h>
+#include <linux/blk.h>
+#include <linux/efi.h>
+
+#define MSDOS_MBR_SIGNATURE 0xaa55
+#define EFI_PMBR_OSTYPE_EFI 0xEF
+#define EFI_PMBR_OSTYPE_EFI_GPT 0xEE
+
+#define GPT_BLOCK_SIZE 512
+#define GPT_HEADER_SIGNATURE 0x5452415020494645ULL
+#define GPT_HEADER_REVISION_V1 0x00010000
+#define GPT_PRIMARY_PARTITION_TABLE_LBA 1
+
+#define PARTITION_SYSTEM_GUID \
+    EFI_GUID( 0xC12A7328, 0xF81F, 0x11d2, \
+              0xBA, 0x4B, 0x00, 0xA0, 0xC9, 0x3E, 0xC9, 0x3B) 
+#define LEGACY_MBR_PARTITION_GUID \
+    EFI_GUID( 0x024DEE41, 0x33E7, 0x11d3, \
+              0x9D, 0x69, 0x00, 0x08, 0xC7, 0x81, 0xF3, 0x9F)
+#define PARTITION_MSFT_RESERVED_GUID \
+    EFI_GUID( 0xE3C9E316, 0x0B5C, 0x4DB8, \
+              0x81, 0x7D, 0xF9, 0x2D, 0xF0, 0x02, 0x15, 0xAE)
+#define PARTITION_BASIC_DATA_GUID \
+    EFI_GUID( 0xEBD0A0A2, 0xB9E5, 0x4433, \
+              0x87, 0xC0, 0x68, 0xB6, 0xB7, 0x26, 0x99, 0xC7)
+#define PARTITION_LINUX_RAID_GUID \
+    EFI_GUID( 0xa19d880f, 0x05fc, 0x4d3b, \
+              0xa0, 0x06, 0x74, 0x3f, 0x0f, 0x84, 0x91, 0x1e)
+#define PARTITION_LINUX_SWAP_GUID \
+    EFI_GUID( 0x0657fd6d, 0xa4ab, 0x43c4, \
+              0x84, 0xe5, 0x09, 0x33, 0xc8, 0x4b, 0x4f, 0x4f)
+#define PARTITION_LINUX_LVM_GUID \
+    EFI_GUID( 0xe6d6d379, 0xf507, 0x44c2, \
+              0xa2, 0x3c, 0x23, 0x8f, 0x2a, 0x3d, 0xf9, 0x28)
+
+typedef struct _gpt_header {
+	u64 signature;
+	u32 revision;
+	u32 header_size;
+	u32 header_crc32;
+	u32 reserved1;
+	u64 my_lba;
+	u64 alternate_lba;
+	u64 first_usable_lba;
+	u64 last_usable_lba;
+	efi_guid_t disk_guid;
+	u64 partition_entry_lba;
+	u32 num_partition_entries;
+	u32 sizeof_partition_entry;
+	u32 partition_entry_array_crc32;
+	u8 reserved2[GPT_BLOCK_SIZE - 92];
+} __attribute__ ((packed)) gpt_header;
+
+typedef struct _gpt_entry_attributes {
+	u64 required_to_function:1;
+	u64 reserved:47;
+        u64 type_guid_specific:16;
+} __attribute__ ((packed)) gpt_entry_attributes;
+
+typedef struct _gpt_entry {
+	efi_guid_t partition_type_guid;
+	efi_guid_t unique_partition_guid;
+	u64 starting_lba;
+	u64 ending_lba;
+	gpt_entry_attributes attributes;
+	efi_char16_t partition_name[72 / sizeof (efi_char16_t)];
+} __attribute__ ((packed)) gpt_entry;
+
+typedef struct _legacy_mbr {
+	u8 boot_code[440];
+	u32 unique_mbr_signature;
+	u16 unknown;
+	struct partition partition_record[4];
+	u16 signature;
+} __attribute__ ((packed)) legacy_mbr;
+
+/* Functions */
+extern int
+ efi_partition(struct gendisk *hd, struct block_device *bdev,
+	      unsigned long first_sector, int first_part_minor);
+
+#endif
diff --git a/fs/partitions/ibm.c b/fs/partitions/ibm.c
new file mode 100644
index 00000000000000..bdcdd59f9c8229
--- /dev/null
+++ b/fs/partitions/ibm.c
@@ -0,0 +1,238 @@
+/*
+ * File...........: linux/fs/partitions/ibm.c      
+ * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
+ *                  Volker Sameske <sameske@de.ibm.com>
+ * Bugreports.to..: <Linux390@de.ibm.com>
+ * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000
+
+ * History of changes (starts July 2000)
+ * 07/10/00 Fixed detection of CMS formatted disks     
+ * 02/13/00 VTOC partition support added
+ * 12/27/01 fixed PL030593 (CMS reserved minidisk not detected on 64 bit)
+ * 07/24/03 no longer using contents of freed page for CMS label recognition (BZ3611)
+ */
+
+#include <linux/config.h>
+#include <linux/fs.h>
+#include <linux/genhd.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/string.h>
+#include <linux/blk.h>
+#include <linux/slab.h>
+#include <linux/hdreg.h>
+#include <linux/ioctl.h>
+#include <linux/version.h>
+#include <asm/ebcdic.h>
+#include <asm/uaccess.h>
+#include <asm/dasd.h>
+
+#include "ibm.h"
+#include "check.h"
+#include <asm/vtoc.h>
+
+/*
+ * compute the block number from a 
+ * cyl-cyl-head-head structure
+ */
+static inline int
+cchh2blk (cchh_t *ptr, struct hd_geometry *geo) {
+        return ptr->cc * geo->heads * geo->sectors +
+	       ptr->hh * geo->sectors;
+}
+
+
+/*
+ * compute the block number from a 
+ * cyl-cyl-head-head-block structure
+ */
+static inline int
+cchhb2blk (cchhb_t *ptr, struct hd_geometry *geo) {
+        return ptr->cc * geo->heads * geo->sectors +
+		ptr->hh * geo->sectors +
+		ptr->b;
+}
+
+/*
+ * We used to use ioctl_by_bdev in early 2.4, but it broke
+ * between 2.4.9 and 2.4.18 somewhere.
+ */
+extern int (*genhd_dasd_ioctl)(struct inode *inp, struct file *filp,
+                            unsigned int no, unsigned long data);
+
+static int
+ibm_ioctl_unopened(struct block_device *bdev, unsigned cmd, unsigned long arg)
+{
+	int res;
+	mm_segment_t old_fs = get_fs();
+
+	if (genhd_dasd_ioctl == NULL)
+		return -ENODEV;
+#if 0
+	lock_kernel();
+	if (bd_ops->owner)
+		__MOD_INC_USE_COUNT(bdev->bd_op->owner);
+	unlock_kernel();
+#endif
+	set_fs(KERNEL_DS);
+	res = (*genhd_dasd_ioctl)(bdev->bd_inode, NULL, cmd, arg);
+	set_fs(old_fs);
+#if 0
+	lock_kernel();
+	if (bd_ops->owner)
+		__MOD_DEV_USE_COUNT(bd_ops->owner);
+	unlock_kernel();
+#endif
+	return res;
+}
+
+/*
+ */
+int 
+ibm_partition(struct gendisk *hd, struct block_device *bdev,
+	      unsigned long first_sector, int first_part_minor)
+{
+	int blocksize, offset, size;
+	dasd_information_t *info;
+	struct hd_geometry *geo;
+	char type[5] = {0,};
+	char name[7] = {0,};
+	volume_label_t *vlabel;
+	unsigned char *data;
+	Sector sect;
+
+	if ( first_sector != 0 )
+		BUG();
+
+	if ((info = kmalloc(sizeof(dasd_information_t), GFP_KERNEL)) == NULL)
+		goto out_noinfo;
+	if ((geo = kmalloc(sizeof(struct hd_geometry), GFP_KERNEL)) == NULL)
+		goto out_nogeo;
+	if ((vlabel = kmalloc(sizeof(volume_label_t), GFP_KERNEL)) == NULL)
+		goto out_novlab;
+
+	if (ibm_ioctl_unopened(bdev, BIODASDINFO, (unsigned long)info) != 0 ||
+	    ibm_ioctl_unopened(bdev, HDIO_GETGEO, (unsigned long)geo) != 0)
+		goto out_noioctl;
+
+	if ((blocksize = get_hardsect_size(to_kdev_t(bdev->bd_dev))) <= 0)
+		goto out_badsect;
+
+	/*
+	 * Get volume label, extract name and type.
+	 */
+	data = read_dev_sector(bdev, info->label_block*(blocksize/512), &sect);
+	if (data == NULL)
+		goto out_readerr;
+	strncpy (type, data, 4);
+	if ((!info->FBA_layout) && (!strcmp(info->type, "ECKD")))
+		strncpy(name, data + 8, 6);
+	else
+		strncpy(name, data + 4, 6);
+	memcpy (vlabel, data, sizeof(volume_label_t));
+	put_dev_sector(sect);
+
+	EBCASC(type, 4);
+	EBCASC(name, 6);
+
+	/*
+	 * Three different types: CMS1, VOL1 and LNX1/unlabeled
+	 */
+	if (strncmp(type, "CMS1", 4) == 0) {
+		/*
+		 * VM style CMS1 labeled disk
+		 */
+		int *label = (int *) vlabel;
+
+		if (label[13] != 0) {
+			printk("CMS1/%8s(MDSK):", name);
+			/* disk is reserved minidisk */
+			blocksize = label[3];
+			offset = label[13];
+			size = (label[7] - 1)*(blocksize >> 9);
+		} else {
+			printk("CMS1/%8s:", name);
+			offset = (info->label_block + 1);
+			size = bdev->bd_inode->i_size >> 9;
+		}
+		// add_gd_partition(hd, first_part_minor - 1, 0, size);
+		add_gd_partition(hd, first_part_minor,
+				 offset*(blocksize >> 9),
+				 size-offset*(blocksize >> 9));
+	} else if ((strncmp(type, "VOL1", 4) == 0) &&
+		(!info->FBA_layout) && (!strcmp(info->type, "ECKD"))) {
+		/*
+		 * New style VOL1 labeled disk
+		 */
+		unsigned int blk;
+		int counter;
+
+		printk("VOL1/%8s:", name);
+
+		/* get block number and read then go through format1 labels */
+		blk = cchhb2blk(&vlabel->vtoc, geo) + 1;
+		counter = 0;
+		while ((data = read_dev_sector(bdev, blk*(blocksize/512),
+					       &sect)) != NULL) {
+			format1_label_t f1;
+
+			memcpy(&f1, data, sizeof(format1_label_t));
+			put_dev_sector(sect);
+
+			/* skip FMT4 / FMT5 / FMT7 labels */
+			if (f1.DS1FMTID == _ascebc['4']
+			    || f1.DS1FMTID == _ascebc['5']
+			    || f1.DS1FMTID == _ascebc['7']) {
+			        blk++;
+				continue;
+			}
+
+			/* only FMT1 valid at this point */
+			if (f1.DS1FMTID != _ascebc['1'])
+				break;
+
+			/* OK, we got valid partition data */
+		        offset = cchh2blk(&f1.DS1EXT1.llimit, geo);
+			size  = cchh2blk(&f1.DS1EXT1.ulimit, geo) - 
+				offset + geo->sectors;
+			if (counter >= hd->max_p)
+				break;
+			add_gd_partition(hd, first_part_minor + counter, 
+					 offset * (blocksize >> 9),
+					 size * (blocksize >> 9));
+			counter++;
+			blk++;
+		}
+	} else {
+		/*
+		 * Old style LNX1 or unlabeled disk
+		 */
+		if (strncmp(type, "LNX1", 4) == 0)
+			printk ("LNX1/%8s:", name);
+		else
+			printk("(nonl)/%8s:", name);
+		offset = (info->label_block + 1);
+		size = (bdev->bd_inode->i_size >> 9);
+		// add_gd_partition(hd, first_part_minor - 1, 0, size);
+		add_gd_partition(hd, first_part_minor,
+				 offset*(blocksize >> 9),
+				  size-offset*(blocksize >> 9));
+	}
+
+	printk("\n");
+	kfree(vlabel);
+	kfree(geo);
+	kfree(info);
+	return 1;
+
+out_readerr:
+out_badsect:
+out_noioctl:
+	kfree(vlabel);
+out_novlab:
+	kfree(geo);
+out_nogeo:
+	kfree(info);
+out_noinfo:
+	return 0;
+}
diff --git a/fs/partitions/ibm.h b/fs/partitions/ibm.h
new file mode 100644
index 00000000000000..08b05ed151feb5
--- /dev/null
+++ b/fs/partitions/ibm.h
@@ -0,0 +1 @@
+int ibm_partition(struct gendisk *, struct block_device *, unsigned long, int);
diff --git a/fs/partitions/ldm.c b/fs/partitions/ldm.c
new file mode 100644
index 00000000000000..d94155b613e2c0
--- /dev/null
+++ b/fs/partitions/ldm.c
@@ -0,0 +1,1545 @@
+/**
+ * ldm - Support for Windows Logical Disk Manager (Dynamic Disks)
+ *
+ * Copyright (C) 2001,2002 Richard Russon <ldm@flatcap.org>
+ * Copyright (C) 2001      Anton Altaparmakov <aia21@cantab.net>
+ * Copyright (C) 2001,2002 Jakob Kemi <jakob.kemi@telia.com>
+ *
+ * Documentation is available at http://linux-ntfs.sf.net/ldm
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at your option) any later
+ * version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program (in the main directory of the source in the file COPYING); if
+ * not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+ * Boston, MA  02111-1307  USA
+ */
+
+#include <linux/slab.h>
+#include <linux/stringify.h>
+#include <linux/pagemap.h>
+#include "ldm.h"
+#include "check.h"
+#include "msdos.h"
+
+typedef enum {
+	FALSE = 0,
+	TRUE  = 1
+} BOOL;
+
+/**
+ * ldm_debug/info/error/crit - Output an error message
+ * @f:    A printf format string containing the message
+ * @...:  Variables to substitute into @f
+ *
+ * ldm_debug() writes a DEBUG level message to the syslog but only if the
+ * driver was compiled with debug enabled. Otherwise, the call turns into a NOP.
+ */
+#ifndef CONFIG_LDM_DEBUG
+#define ldm_debug(...)	do {} while (0)
+#else
+#define ldm_debug(f, a...) _ldm_printk (KERN_DEBUG, __FUNCTION__, f, ##a)
+#endif
+
+#define ldm_crit(f, a...)  _ldm_printk (KERN_CRIT,  __FUNCTION__, f, ##a)
+#define ldm_error(f, a...) _ldm_printk (KERN_ERR,   __FUNCTION__, f, ##a)
+#define ldm_info(f, a...)  _ldm_printk (KERN_INFO,  __FUNCTION__, f, ##a)
+
+__attribute__ ((format (printf, 3, 4)))
+static void _ldm_printk (const char *level, const char *function,
+			 const char *fmt, ...)
+{
+	static char buf[128];
+	va_list args;
+
+	va_start (args, fmt);
+	vsnprintf (buf, sizeof (buf), fmt, args);
+	va_end (args);
+
+	printk ("%s%s(): %s\n", level, function, buf);
+}
+
+
+/**
+ * ldm_parse_hexbyte - Convert a ASCII hex number to a byte
+ * @src:  Pointer to at least 2 characters to convert.
+ *
+ * Convert a two character ASCII hex string to a number.
+ *
+ * Return:  0-255  Success, the byte was parsed correctly
+ *          -1     Error, an invalid character was supplied
+ */
+static int ldm_parse_hexbyte (const u8 *src)
+{
+	unsigned int x;		/* For correct wrapping */
+	int h;
+
+	/* high part */
+	if      ((x = src[0] - '0') <= '9'-'0') h = x;
+	else if ((x = src[0] - 'a') <= 'f'-'a') h = x+10;
+	else if ((x = src[0] - 'A') <= 'F'-'A') h = x+10;
+	else return -1;
+	h <<= 4;
+
+	/* low part */
+	if ((x = src[1] - '0') <= '9'-'0') return h | x;
+	if ((x = src[1] - 'a') <= 'f'-'a') return h | (x+10);
+	if ((x = src[1] - 'A') <= 'F'-'A') return h | (x+10);
+	return -1;
+}
+
+/**
+ * ldm_parse_guid - Convert GUID from ASCII to binary
+ * @src:   36 char string of the form fa50ff2b-f2e8-45de-83fa-65417f2f49ba
+ * @dest:  Memory block to hold binary GUID (16 bytes)
+ *
+ * N.B. The GUID need not be NULL terminated.
+ *
+ * Return:  TRUE   @dest contains binary GUID
+ *          FALSE  @dest contents are undefined
+ */
+static BOOL ldm_parse_guid (const u8 *src, u8 *dest)
+{
+	static const int size[] = { 4, 2, 2, 2, 6 };
+	int i, j, v;
+
+	if (src[8]  != '-' || src[13] != '-' ||
+	    src[18] != '-' || src[23] != '-')
+		return FALSE;
+
+	for (j = 0; j < 5; j++, src++)
+		for (i = 0; i < size[j]; i++, src+=2, *dest++ = v)
+			if ((v = ldm_parse_hexbyte (src)) < 0)
+				return FALSE;
+
+	return TRUE;
+}
+
+
+/**
+ * ldm_parse_privhead - Read the LDM Database PRIVHEAD structure
+ * @data:  Raw database PRIVHEAD structure loaded from the device
+ * @ph:    In-memory privhead structure in which to return parsed information
+ *
+ * This parses the LDM database PRIVHEAD structure supplied in @data and
+ * sets up the in-memory privhead structure @ph with the obtained information.
+ *
+ * Return:  TRUE   @ph contains the PRIVHEAD data
+ *          FALSE  @ph contents are undefined
+ */
+static BOOL ldm_parse_privhead (const u8 *data, struct privhead *ph)
+{
+	BUG_ON (!data);
+	BUG_ON (!ph);
+
+	if (MAGIC_PRIVHEAD != BE64 (data)) {
+		ldm_error ("Cannot find PRIVHEAD structure. LDM database is"
+			" corrupt. Aborting.");
+		return FALSE;
+	}
+
+	ph->ver_major          = BE16 (data + 0x000C);
+	ph->ver_minor          = BE16 (data + 0x000E);
+	ph->logical_disk_start = BE64 (data + 0x011B);
+	ph->logical_disk_size  = BE64 (data + 0x0123);
+	ph->config_start       = BE64 (data + 0x012B);
+	ph->config_size        = BE64 (data + 0x0133);
+
+	if ((ph->ver_major != 2) || (ph->ver_minor != 11)) {
+		ldm_error ("Expected PRIVHEAD version %d.%d, got %d.%d."
+			" Aborting.", 2, 11, ph->ver_major, ph->ver_minor);
+		return FALSE;
+	}
+	if (ph->config_size != LDM_DB_SIZE) {	/* 1 MiB in sectors. */
+		/* Warn the user and continue, carefully */
+		ldm_info ("Database is normally %u bytes, it claims to "
+			"be %llu bytes.", LDM_DB_SIZE,
+			(unsigned long long)ph->config_size );
+	}
+	if ((ph->logical_disk_size == 0) ||
+	    (ph->logical_disk_start + ph->logical_disk_size > ph->config_start)) {
+		ldm_error ("PRIVHEAD disk size doesn't match real disk size");
+		return FALSE;
+	}
+
+	if (!ldm_parse_guid (data + 0x0030, ph->disk_id)) {
+		ldm_error ("PRIVHEAD contains an invalid GUID.");
+		return FALSE;
+	}
+
+	ldm_debug ("Parsed PRIVHEAD successfully.");
+	return TRUE;
+}
+
+/**
+ * ldm_parse_tocblock - Read the LDM Database TOCBLOCK structure
+ * @data:  Raw database TOCBLOCK structure loaded from the device
+ * @toc:   In-memory toc structure in which to return parsed information
+ *
+ * This parses the LDM Database TOCBLOCK (table of contents) structure supplied
+ * in @data and sets up the in-memory tocblock structure @toc with the obtained
+ * information.
+ *
+ * N.B.  The *_start and *_size values returned in @toc are not range-checked.
+ *
+ * Return:  TRUE   @toc contains the TOCBLOCK data
+ *          FALSE  @toc contents are undefined
+ */
+static BOOL ldm_parse_tocblock (const u8 *data, struct tocblock *toc)
+{
+	BUG_ON (!data);
+	BUG_ON (!toc);
+
+	if (MAGIC_TOCBLOCK != BE64 (data)) {
+		ldm_crit ("Cannot find TOCBLOCK, database may be corrupt.");
+		return FALSE;
+	}
+	strncpy (toc->bitmap1_name, data + 0x24, sizeof (toc->bitmap1_name));
+	toc->bitmap1_name[sizeof (toc->bitmap1_name) - 1] = 0;
+	toc->bitmap1_start = BE64 (data + 0x2E);
+	toc->bitmap1_size  = BE64 (data + 0x36);
+
+	if (strncmp (toc->bitmap1_name, TOC_BITMAP1,
+			sizeof (toc->bitmap1_name)) != 0) {
+		ldm_crit ("TOCBLOCK's first bitmap is '%s', should be '%s'.",
+				TOC_BITMAP1, toc->bitmap1_name);
+		return FALSE;
+	}
+	strncpy (toc->bitmap2_name, data + 0x46, sizeof (toc->bitmap2_name));
+	toc->bitmap2_name[sizeof (toc->bitmap2_name) - 1] = 0;
+	toc->bitmap2_start = BE64 (data + 0x50);
+	toc->bitmap2_size  = BE64 (data + 0x58);
+	if (strncmp (toc->bitmap2_name, TOC_BITMAP2,
+			sizeof (toc->bitmap2_name)) != 0) {
+		ldm_crit ("TOCBLOCK's second bitmap is '%s', should be '%s'.",
+				TOC_BITMAP2, toc->bitmap2_name);
+		return FALSE;
+	}
+	ldm_debug ("Parsed TOCBLOCK successfully.");
+	return TRUE;
+}
+
+/**
+ * ldm_parse_vmdb - Read the LDM Database VMDB structure
+ * @data:  Raw database VMDB structure loaded from the device
+ * @vm:    In-memory vmdb structure in which to return parsed information
+ *
+ * This parses the LDM Database VMDB structure supplied in @data and sets up
+ * the in-memory vmdb structure @vm with the obtained information.
+ *
+ * N.B.  The *_start, *_size and *_seq values will be range-checked later.
+ *
+ * Return:  TRUE   @vm contains VMDB info
+ *          FALSE  @vm contents are undefined
+ */
+static BOOL ldm_parse_vmdb (const u8 *data, struct vmdb *vm)
+{
+	BUG_ON (!data);
+	BUG_ON (!vm);
+
+	if (MAGIC_VMDB != BE32 (data)) {
+		ldm_crit ("Cannot find the VMDB, database may be corrupt.");
+		return FALSE;
+	}
+
+	vm->ver_major = BE16 (data + 0x12);
+	vm->ver_minor = BE16 (data + 0x14);
+	if ((vm->ver_major != 4) || (vm->ver_minor != 10)) {
+		ldm_error ("Expected VMDB version %d.%d, got %d.%d. "
+			"Aborting.", 4, 10, vm->ver_major, vm->ver_minor);
+		return FALSE;
+	}
+
+	vm->vblk_size     = BE32 (data + 0x08);
+	vm->vblk_offset   = BE32 (data + 0x0C);
+	vm->last_vblk_seq = BE32 (data + 0x04);
+
+	ldm_debug ("Parsed VMDB successfully.");
+	return TRUE;
+}
+
+/**
+ * ldm_compare_privheads - Compare two privhead objects
+ * @ph1:  First privhead
+ * @ph2:  Second privhead
+ *
+ * This compares the two privhead structures @ph1 and @ph2.
+ *
+ * Return:  TRUE   Identical
+ *          FALSE  Different
+ */
+static BOOL ldm_compare_privheads (const struct privhead *ph1,
+				   const struct privhead *ph2)
+{
+	BUG_ON (!ph1);
+	BUG_ON (!ph2);
+
+	return ((ph1->ver_major          == ph2->ver_major)		&&
+		(ph1->ver_minor          == ph2->ver_minor)		&&
+		(ph1->logical_disk_start == ph2->logical_disk_start)	&&
+		(ph1->logical_disk_size  == ph2->logical_disk_size)	&&
+		(ph1->config_start       == ph2->config_start)		&&
+		(ph1->config_size        == ph2->config_size)		&&
+		!memcmp (ph1->disk_id, ph2->disk_id, GUID_SIZE));
+}
+
+/**
+ * ldm_compare_tocblocks - Compare two tocblock objects
+ * @toc1:  First toc
+ * @toc2:  Second toc
+ *
+ * This compares the two tocblock structures @toc1 and @toc2.
+ *
+ * Return:  TRUE   Identical
+ *          FALSE  Different
+ */
+static BOOL ldm_compare_tocblocks (const struct tocblock *toc1,
+				   const struct tocblock *toc2)
+{
+	BUG_ON (!toc1);
+	BUG_ON (!toc2);
+
+	return ((toc1->bitmap1_start == toc2->bitmap1_start)	&&
+		(toc1->bitmap1_size  == toc2->bitmap1_size)	&&
+		(toc1->bitmap2_start == toc2->bitmap2_start)	&&
+		(toc1->bitmap2_size  == toc2->bitmap2_size)	&&
+		!strncmp (toc1->bitmap1_name, toc2->bitmap1_name,
+			sizeof (toc1->bitmap1_name))		&&
+		!strncmp (toc1->bitmap2_name, toc2->bitmap2_name,
+			sizeof (toc1->bitmap2_name)));
+}
+
+/**
+ * ldm_validate_privheads - Compare the primary privhead with its backups
+ * @bdev:  Device holding the LDM Database
+ * @ph1:   Memory struct to fill with ph contents
+ *
+ * Read and compare all three privheads from disk.
+ *
+ * The privheads on disk show the size and location of the main disk area and
+ * the configuration area (the database).
+ *
+ * Return:  TRUE   Success
+ *          FALSE  Error
+ */
+static BOOL ldm_validate_privheads (struct block_device *bdev,
+	unsigned long first_sector, struct privhead *ph1, struct gendisk *hd,
+	unsigned long first_minor)
+{
+	static const int off[3] = { OFF_PRIV1, OFF_PRIV2, OFF_PRIV3 };
+	struct privhead *ph[3] = { ph1 };
+	Sector sect;
+	u8 *data;
+	BOOL result = FALSE;
+	long num_sects;
+	int i;
+
+	BUG_ON (!bdev);
+	BUG_ON (!ph1);
+
+	ph[1] = kmalloc (sizeof (*ph[1]), GFP_KERNEL);
+	ph[2] = kmalloc (sizeof (*ph[2]), GFP_KERNEL);
+	if (!ph[1] || !ph[2]) {
+		ldm_crit ("Out of memory.");
+		goto out;
+	}
+
+	/* off[1 & 2] are relative to ph[0]->config_start */
+	ph[0]->config_start = 0;
+
+	/* Read and parse privheads */
+	for (i = 0; i < 3; i++) {
+		data = read_dev_sector (bdev,
+			first_sector + ph[0]->config_start + off[i], &sect);
+		if (!data) {
+			ldm_crit ("Disk read failed.");
+			goto out;
+		}
+		result = ldm_parse_privhead (data, ph[i]);
+		put_dev_sector (sect);
+		if (!result) {
+			ldm_error ("Cannot find PRIVHEAD %d.", i+1); /* Log again */
+			if (i < 2)
+				goto out;	/* Already logged */
+			else
+				break;	/* FIXME ignore for now, 3rd PH can fail on odd-sized disks */
+		}
+	}
+
+	num_sects = hd->part[(first_minor >> hd->minor_shift)
+				<< hd->minor_shift].nr_sects;
+
+	if ((ph[0]->config_start > num_sects) ||
+	   ((ph[0]->config_start + ph[0]->config_size) > num_sects)) {
+		ldm_crit ("Database extends beyond the end of the disk.");
+		goto out;
+	}
+
+	if ((ph[0]->logical_disk_start > ph[0]->config_start) ||
+	   ((ph[0]->logical_disk_start + ph[0]->logical_disk_size)
+		    > ph[0]->config_start)) {
+		ldm_crit ("Disk and database overlap.");
+		goto out;
+	}
+
+	if (!ldm_compare_privheads (ph[0], ph[1])) {
+		ldm_crit ("Primary and backup PRIVHEADs don't match.");
+		goto out;
+	}
+	/* FIXME ignore this for now
+	if (!ldm_compare_privheads (ph[0], ph[2])) {
+		ldm_crit ("Primary and backup PRIVHEADs don't match.");
+		goto out;
+	}*/
+	ldm_debug ("Validated PRIVHEADs successfully.");
+	result = TRUE;
+out:
+	kfree (ph[1]);
+	kfree (ph[2]);
+	return result;
+}
+
+/**
+ * ldm_validate_tocblocks - Validate the table of contents and its backups
+ * @bdev:  Device holding the LDM Database
+ * @base:  Offset, into @bdev, of the database
+ * @ldb:   Cache of the database structures
+ *
+ * Find and compare the four tables of contents of the LDM Database stored on
+ * @bdev and return the parsed information into @toc1.
+ *
+ * The offsets and sizes of the configs are range-checked against a privhead.
+ *
+ * Return:  TRUE   @toc1 contains validated TOCBLOCK info
+ *          FALSE  @toc1 contents are undefined
+ */
+static BOOL ldm_validate_tocblocks (struct block_device *bdev,
+	unsigned long base, struct ldmdb *ldb)
+{
+	static const int off[4] = { OFF_TOCB1, OFF_TOCB2, OFF_TOCB3, OFF_TOCB4};
+	struct tocblock *tb[4];
+	struct privhead *ph;
+	Sector sect;
+	u8 *data;
+	BOOL result = FALSE;
+	int i;
+
+	BUG_ON (!bdev);
+	BUG_ON (!ldb);
+
+	ph    = &ldb->ph;
+	tb[0] = &ldb->toc;
+	tb[1] = kmalloc (sizeof (*tb[1]), GFP_KERNEL);
+	tb[2] = kmalloc (sizeof (*tb[2]), GFP_KERNEL);
+	tb[3] = kmalloc (sizeof (*tb[3]), GFP_KERNEL);
+	if (!tb[1] || !tb[2] || !tb[3]) {
+		ldm_crit ("Out of memory.");
+		goto out;
+	}
+
+	for (i = 0; i < 4; i++)		/* Read and parse all four toc's. */
+	{
+		data = read_dev_sector (bdev, base + off[i], &sect);
+		if (!data) {
+			ldm_crit ("Disk read failed.");
+			goto out;
+		}
+		result = ldm_parse_tocblock (data, tb[i]);
+		put_dev_sector (sect);
+		if (!result)
+			goto out;	/* Already logged */
+	}
+
+	/* Range check the toc against a privhead. */
+	if (((tb[0]->bitmap1_start + tb[0]->bitmap1_size) > ph->config_size) ||
+	    ((tb[0]->bitmap2_start + tb[0]->bitmap2_size) > ph->config_size)) {
+		ldm_crit ("The bitmaps are out of range.  Giving up.");
+		goto out;
+	}
+
+	if (!ldm_compare_tocblocks (tb[0], tb[1]) ||	/* Compare all tocs. */
+	    !ldm_compare_tocblocks (tb[0], tb[2]) ||
+	    !ldm_compare_tocblocks (tb[0], tb[3])) {
+		ldm_crit ("The TOCBLOCKs don't match.");
+		goto out;
+	}
+
+	ldm_debug ("Validated TOCBLOCKs successfully.");
+	result = TRUE;
+out:
+	kfree (tb[1]);
+	kfree (tb[2]);
+	kfree (tb[3]);
+	return result;
+}
+
+/**
+ * ldm_validate_vmdb - Read the VMDB and validate it
+ * @bdev:  Device holding the LDM Database
+ * @base:  Offset, into @bdev, of the database
+ * @ldb:   Cache of the database structures
+ *
+ * Find the vmdb of the LDM Database stored on @bdev and return the parsed
+ * information in @ldb.
+ *
+ * Return:  TRUE   @ldb contains validated VBDB info
+ *          FALSE  @ldb contents are undefined
+ */
+static BOOL ldm_validate_vmdb (struct block_device *bdev, unsigned long base,
+			       struct ldmdb *ldb)
+{
+	Sector sect;
+	u8 *data;
+	BOOL result = FALSE;
+	struct vmdb *vm;
+	struct tocblock *toc;
+
+	BUG_ON (!bdev);
+	BUG_ON (!ldb);
+
+	vm  = &ldb->vm;
+	toc = &ldb->toc;
+
+	data = read_dev_sector (bdev, base + OFF_VMDB, &sect);
+	if (!data) {
+		ldm_crit ("Disk read failed.");
+		return FALSE;
+	}
+
+	if (!ldm_parse_vmdb (data, vm))
+		goto out;				/* Already logged */
+
+	/* Are there uncommitted transactions? */
+	if (BE16(data + 0x10) != 0x01) {
+		ldm_crit ("Database is not in a consistant state.  Aborting.");
+		goto out;
+	}
+
+	if (vm->vblk_offset != 512)
+		ldm_info ("VBLKs start at offset 0x%04x.", vm->vblk_offset);
+
+	/* FIXME: How should we handle this situation? */
+	if ((vm->vblk_size * vm->last_vblk_seq) != (toc->bitmap1_size << 9))
+		ldm_info ("VMDB and TOCBLOCK don't agree on the database size.");
+
+	result = TRUE;
+out:
+	put_dev_sector (sect);
+	return result;
+}
+
+
+/**
+ * ldm_validate_partition_table - Determine whether bdev might be a dynamic disk
+ * @bdev:  Device holding the LDM Database
+ *
+ * This function provides a weak test to decide whether the device is a dynamic
+ * disk or not.  It looks for an MS-DOS-style partition table containing at
+ * least one partition of type 0x42 (formerly SFS, now used by Windows for
+ * dynamic disks).
+ *
+ * N.B.  The only possible error can come from the read_dev_sector and that is
+ *       only likely to happen if the underlying device is strange.  If that IS
+ *       the case we should return zero to let someone else try.
+ *
+ * Return:  TRUE   @bdev is a dynamic disk
+ *          FALSE  @bdev is not a dynamic disk, or an error occurred
+ */
+static BOOL ldm_validate_partition_table (struct block_device *bdev)
+{
+	Sector sect;
+	u8 *data;
+	struct partition *p;
+	int i;
+	BOOL result = FALSE;
+
+	BUG_ON (!bdev);
+
+	data = read_dev_sector (bdev, 0, &sect);
+	if (!data) {
+		ldm_crit ("Disk read failed.");
+		return FALSE;
+	}
+
+	if (*(u16*) (data + 0x01FE) != cpu_to_le16 (MSDOS_LABEL_MAGIC)) {
+		ldm_debug ("No MS-DOS partition table found.");
+		goto out;
+	}
+
+	p = (struct partition*)(data + 0x01BE);
+	for (i = 0; i < 4; i++, p++)
+		if (SYS_IND (p) == WIN2K_DYNAMIC_PARTITION) {
+			result = TRUE;
+			break;
+		}
+
+	if (result)
+		ldm_debug ("Parsed partition table successfully.");
+	else
+		ldm_debug ("Found an MS-DOS partition table, not a dynamic disk.");
+out:
+	put_dev_sector (sect);
+	return result;
+}
+
+/**
+ * ldm_get_disk_objid - Search a linked list of vblk's for a given Disk Id
+ * @ldb:  Cache of the database structures
+ *
+ * The LDM Database contains a list of all partitions on all dynamic disks.  The
+ * primary PRIVHEAD, at the beginning of the physical disk, tells us the GUID of
+ * this disk.  This function searches for the GUID in a linked list of vblk's.
+ *
+ * Return:  Pointer, A matching vblk was found
+ *          NULL,    No match, or an error
+ */
+static struct vblk * ldm_get_disk_objid (const struct ldmdb *ldb)
+{
+	struct list_head *item;
+
+	BUG_ON (!ldb);
+
+	list_for_each (item, &ldb->v_disk) {
+		struct vblk *v = list_entry (item, struct vblk, list);
+		if (!memcmp (v->vblk.disk.disk_id, ldb->ph.disk_id, GUID_SIZE))
+			return v;
+	}
+
+	return NULL;
+}
+
+/**
+ * ldm_create_partition - Create a kernel partition device
+ * @hd:     gendisk structure in which to create partition
+ * @minor:  Create a this minor number on the device
+ * @start:  Offset (in sectors) into the device of the partition
+ * @size:   Size (in sectors) of the partition
+ *
+ * This validates the range, then puts an entry into the kernel's partition
+ * table.
+ *
+ * Return:  TRUE   Created the partition
+ *          FALSE  Error
+ */
+static BOOL ldm_create_partition (struct gendisk *hd, int minor, int start,
+				  int size)
+{
+	int disk_minor;
+
+	BUG_ON (!hd);;
+	BUG_ON (!hd->part);
+
+	/* Get the minor number of the parent device
+	 * so we can check we don't go beyond the end of the device.  */
+	disk_minor = (minor >> hd->minor_shift) << hd->minor_shift;
+	if ((start < 1) || ((start + size) > hd->part[disk_minor].nr_sects)) {
+		ldm_crit ("Partition exceeds physical disk. Aborting.");
+		return FALSE;
+	}
+	add_gd_partition (hd, minor, start, size);
+	ldm_debug ("Created partition successfully.");
+	return TRUE;
+}
+
+/**
+ * ldm_create_data_partitions - Create data partitions for this device
+ * @pp:   List of the partitions parsed so far
+ * @ldb:  Cache of the database structures
+ *
+ * The database contains ALL the partitions for ALL disk groups, so we need to
+ * filter out this specific disk. Using the disk's object id, we can find all
+ * the partitions in the database that belong to this disk.
+ *
+ * Add each partition in our database, to the parsed_partitions structure.
+ *
+ * N.B.  This function creates the partitions in the order it finds partition
+ *       objects in the linked list.
+ *
+ * Return:  TRUE   Partition created
+ *          FALSE  Error, probably a range checking problem
+ */
+static BOOL ldm_create_data_partitions (struct gendisk *hd,
+	unsigned long first_sector, int first_minor, const struct ldmdb *ldb)
+{
+	struct list_head *item;
+	struct vblk_part *part;
+	struct vblk *disk;
+	int disk_minor;
+	int minor;
+
+	BUG_ON (!hd);
+	BUG_ON (!ldb);
+
+	disk = ldm_get_disk_objid (ldb);
+	if (!disk) {
+		ldm_crit ("Can't find the ID of this disk in the database.");
+		return FALSE;
+	}
+
+	/* We use the range-check the partitions against the parent device. */
+	disk_minor = (first_minor >> hd->minor_shift) << hd->minor_shift;
+	minor = first_minor;
+
+	printk (" [LDM]");
+
+	/* Create the data partitions */
+	list_for_each (item, &ldb->v_part) {
+		struct vblk *vb;
+		vb = list_entry (item, struct vblk, list);
+		part = &vb->vblk.part;
+
+		if (part->disk_id != disk->obj_id)
+			continue;
+
+		if (!ldm_create_partition (hd, minor,
+		    part->start + ldb->ph.logical_disk_start, part->size))
+			continue;			/* Already logged */
+		minor++;
+	}
+
+	printk ("\n");
+	return TRUE;
+}
+
+
+/**
+ * ldm_relative - Calculate the next relative offset
+ * @buffer:  Block of data being worked on
+ * @buflen:  Size of the block of data
+ * @base:    Size of the previous fixed width fields
+ * @offset:  Cumulative size of the previous variable-width fields
+ *
+ * Because many of the VBLK fields are variable-width, it's necessary
+ * to calculate each offset based on the previous one and the length
+ * of the field it pointed to.
+ *
+ * Return:  -1 Error, the calculated offset exceeded the size of the buffer
+ *           n OK, a range-checked offset into buffer
+ */
+static int ldm_relative (const u8 *buffer, int buflen, int base, int offset)
+{
+
+	base += offset;
+	if ((!buffer) || (offset < 0) || (base > buflen))
+		return -1;
+	if ((base + buffer[base]) >= buflen)
+		return -1;
+
+	return buffer[base] + offset + 1;
+}
+
+/**
+ * ldm_get_vnum - Convert a variable-width, big endian number, into cpu order
+ * @block:  Pointer to the variable-width number to convert
+ *
+ * Large numbers in the LDM Database are often stored in a packed format.  Each
+ * number is prefixed by a one byte width marker.  All numbers in the database
+ * are stored in big-endian byte order.  This function reads one of these
+ * numbers and returns the result
+ *
+ * N.B.  This function DOES NOT perform any range checking, though the most
+ *       it will read is eight bytes.
+ *
+ * Return:  n A number
+ *          0 Zero, or an error occurred
+ */
+static u64 ldm_get_vnum (const u8 *block)
+{
+	u64 tmp = 0;
+	u8 length;
+
+	BUG_ON (!block);
+
+	length = *block++;
+
+	if (length && length <= 8)
+		while (length--)
+			tmp = (tmp << 8) | *block++;
+	else
+		ldm_error ("Illegal length %d.", length);
+
+	return tmp;
+}
+
+/**
+ * ldm_get_vstr - Read a length-prefixed string into a buffer
+ * @block:   Pointer to the length marker
+ * @buffer:  Location to copy string to
+ * @buflen:  Size of the output buffer
+ *
+ * Many of the strings in the LDM Database are not NULL terminated.  Instead
+ * they are prefixed by a one byte length marker.  This function copies one of
+ * these strings into a buffer.
+ *
+ * N.B.  This function DOES NOT perform any range checking on the input.
+ *       If the buffer is too small, the output will be truncated.
+ *
+ * Return:  0, Error and @buffer contents are undefined
+ *          n, String length in characters (excluding NULL)
+ *          buflen-1, String was truncated.
+ */
+static int ldm_get_vstr (const u8 *block, u8 *buffer, int buflen)
+{
+	int length;
+
+	BUG_ON (!block);
+	BUG_ON (!buffer);
+
+	length = block[0];
+	if (length >= buflen) {
+		ldm_error ("Truncating string %d -> %d.", length, buflen);
+		length = buflen - 1;
+	}
+	memcpy (buffer, block + 1, length);
+	buffer[length] = 0;
+	return length;
+}
+
+
+/**
+ * ldm_parse_cmp3 - Read a raw VBLK Component object into a vblk structure
+ * @buffer:  Block of data being worked on
+ * @buflen:  Size of the block of data
+ * @vb:      In-memory vblk in which to return information
+ *
+ * Read a raw VBLK Component object (version 3) into a vblk structure.
+ *
+ * Return:  TRUE   @vb contains a Component VBLK
+ *          FALSE  @vb contents are not defined
+ */
+static BOOL ldm_parse_cmp3 (const u8 *buffer, int buflen, struct vblk *vb)
+{
+	int r_objid, r_name, r_vstate, r_child, r_parent, r_stripe, r_cols, len;
+	struct vblk_comp *comp;
+
+	BUG_ON (!buffer);
+	BUG_ON (!vb);
+
+	r_objid  = ldm_relative (buffer, buflen, 0x18, 0);
+	r_name   = ldm_relative (buffer, buflen, 0x18, r_objid);
+	r_vstate = ldm_relative (buffer, buflen, 0x18, r_name);
+	r_child  = ldm_relative (buffer, buflen, 0x1D, r_vstate);
+	r_parent = ldm_relative (buffer, buflen, 0x2D, r_child);
+
+	if (buffer[0x12] & VBLK_FLAG_COMP_STRIPE) {
+		r_stripe = ldm_relative (buffer, buflen, 0x2E, r_parent);
+		r_cols   = ldm_relative (buffer, buflen, 0x2E, r_stripe);
+		len = r_cols;
+	} else {
+		r_stripe = 0;
+		r_cols   = 0;
+		len = r_parent;
+	}
+	if (len < 0)
+		return FALSE;
+
+	len += VBLK_SIZE_CMP3;
+	if (len != BE32 (buffer + 0x14))
+		return FALSE;
+
+	comp = &vb->vblk.comp;
+	ldm_get_vstr (buffer + 0x18 + r_name, comp->state,
+		sizeof (comp->state));
+	comp->type      = buffer[0x18 + r_vstate];
+	comp->children  = ldm_get_vnum (buffer + 0x1D + r_vstate);
+	comp->parent_id = ldm_get_vnum (buffer + 0x2D + r_child);
+	comp->chunksize = r_stripe ? ldm_get_vnum (buffer+r_parent+0x2E) : 0;
+
+	return TRUE;
+}
+
+/**
+ * ldm_parse_dgr3 - Read a raw VBLK Disk Group object into a vblk structure
+ * @buffer:  Block of data being worked on
+ * @buflen:  Size of the block of data
+ * @vb:      In-memory vblk in which to return information
+ *
+ * Read a raw VBLK Disk Group object (version 3) into a vblk structure.
+ *
+ * Return:  TRUE   @vb contains a Disk Group VBLK
+ *          FALSE  @vb contents are not defined
+ */
+static int ldm_parse_dgr3 (const u8 *buffer, int buflen, struct vblk *vb)
+{
+	int r_objid, r_name, r_diskid, r_id1, r_id2, len;
+	struct vblk_dgrp *dgrp;
+
+	BUG_ON (!buffer);
+	BUG_ON (!vb);
+
+	r_objid  = ldm_relative (buffer, buflen, 0x18, 0);
+	r_name   = ldm_relative (buffer, buflen, 0x18, r_objid);
+	r_diskid = ldm_relative (buffer, buflen, 0x18, r_name);
+
+	if (buffer[0x12] & VBLK_FLAG_DGR3_IDS) {
+		r_id1 = ldm_relative (buffer, buflen, 0x24, r_diskid);
+		r_id2 = ldm_relative (buffer, buflen, 0x24, r_id1);
+		len = r_id2;
+	} else {
+		r_id1 = 0;
+		r_id2 = 0;
+		len = r_diskid;
+	}
+	if (len < 0)
+		return FALSE;
+
+	len += VBLK_SIZE_DGR3;
+	if (len != BE32 (buffer + 0x14))
+		return FALSE;
+
+	dgrp = &vb->vblk.dgrp;
+	ldm_get_vstr (buffer + 0x18 + r_name, dgrp->disk_id,
+		sizeof (dgrp->disk_id));
+	return TRUE;
+}
+
+/**
+ * ldm_parse_dgr4 - Read a raw VBLK Disk Group object into a vblk structure
+ * @buffer:  Block of data being worked on
+ * @buflen:  Size of the block of data
+ * @vb:      In-memory vblk in which to return information
+ *
+ * Read a raw VBLK Disk Group object (version 4) into a vblk structure.
+ *
+ * Return:  TRUE   @vb contains a Disk Group VBLK
+ *          FALSE  @vb contents are not defined
+ */
+static BOOL ldm_parse_dgr4 (const u8 *buffer, int buflen, struct vblk *vb)
+{
+	char buf[64];
+	int r_objid, r_name, r_id1, r_id2, len;
+	struct vblk_dgrp *dgrp;
+
+	BUG_ON (!buffer);
+	BUG_ON (!vb);
+
+	r_objid  = ldm_relative (buffer, buflen, 0x18, 0);
+	r_name   = ldm_relative (buffer, buflen, 0x18, r_objid);
+
+	if (buffer[0x12] & VBLK_FLAG_DGR4_IDS) {
+		r_id1 = ldm_relative (buffer, buflen, 0x44, r_name);
+		r_id2 = ldm_relative (buffer, buflen, 0x44, r_id1);
+		len = r_id2;
+	} else {
+		r_id1 = 0;
+		r_id2 = 0;
+		len = r_name;
+	}
+	if (len < 0)
+		return FALSE;
+
+	len += VBLK_SIZE_DGR4;
+	if (len != BE32 (buffer + 0x14))
+		return FALSE;
+
+	dgrp = &vb->vblk.dgrp;
+
+	ldm_get_vstr (buffer + 0x18 + r_objid, buf, sizeof (buf));
+	return TRUE;
+}
+
+/**
+ * ldm_parse_dsk3 - Read a raw VBLK Disk object into a vblk structure
+ * @buffer:  Block of data being worked on
+ * @buflen:  Size of the block of data
+ * @vb:      In-memory vblk in which to return information
+ *
+ * Read a raw VBLK Disk object (version 3) into a vblk structure.
+ *
+ * Return:  TRUE   @vb contains a Disk VBLK
+ *          FALSE  @vb contents are not defined
+ */
+static BOOL ldm_parse_dsk3 (const u8 *buffer, int buflen, struct vblk *vb)
+{
+	int r_objid, r_name, r_diskid, r_altname, len;
+	struct vblk_disk *disk;
+
+	BUG_ON (!buffer);
+	BUG_ON (!vb);
+
+	r_objid   = ldm_relative (buffer, buflen, 0x18, 0);
+	r_name    = ldm_relative (buffer, buflen, 0x18, r_objid);
+	r_diskid  = ldm_relative (buffer, buflen, 0x18, r_name);
+	r_altname = ldm_relative (buffer, buflen, 0x18, r_diskid);
+	len = r_altname;
+	if (len < 0)
+		return FALSE;
+
+	len += VBLK_SIZE_DSK3;
+	if (len != BE32 (buffer + 0x14))
+		return FALSE;
+
+	disk = &vb->vblk.disk;
+	ldm_get_vstr (buffer + 0x18 + r_diskid, disk->alt_name,
+		sizeof (disk->alt_name));
+	if (!ldm_parse_guid (buffer + 0x19 + r_name, disk->disk_id))
+		return FALSE;
+
+	return TRUE;
+}
+
+/**
+ * ldm_parse_dsk4 - Read a raw VBLK Disk object into a vblk structure
+ * @buffer:  Block of data being worked on
+ * @buflen:  Size of the block of data
+ * @vb:      In-memory vblk in which to return information
+ *
+ * Read a raw VBLK Disk object (version 4) into a vblk structure.
+ *
+ * Return:  TRUE   @vb contains a Disk VBLK
+ *          FALSE  @vb contents are not defined
+ */
+static BOOL ldm_parse_dsk4 (const u8 *buffer, int buflen, struct vblk *vb)
+{
+	int r_objid, r_name, len;
+	struct vblk_disk *disk;
+
+	BUG_ON (!buffer);
+	BUG_ON (!vb);
+
+	r_objid = ldm_relative (buffer, buflen, 0x18, 0);
+	r_name  = ldm_relative (buffer, buflen, 0x18, r_objid);
+	len     = r_name;
+	if (len < 0)
+		return FALSE;
+
+	len += VBLK_SIZE_DSK4;
+	if (len != BE32 (buffer + 0x14))
+		return FALSE;
+
+	disk = &vb->vblk.disk;
+	memcpy (disk->disk_id, buffer + 0x18 + r_name, GUID_SIZE);
+	return TRUE;
+}
+
+/**
+ * ldm_parse_prt3 - Read a raw VBLK Partition object into a vblk structure
+ * @buffer:  Block of data being worked on
+ * @buflen:  Size of the block of data
+ * @vb:      In-memory vblk in which to return information
+ *
+ * Read a raw VBLK Partition object (version 3) into a vblk structure.
+ *
+ * Return:  TRUE   @vb contains a Partition VBLK
+ *          FALSE  @vb contents are not defined
+ */
+static BOOL ldm_parse_prt3 (const u8 *buffer, int buflen, struct vblk *vb)
+{
+	int r_objid, r_name, r_size, r_parent, r_diskid, r_index, len;
+	struct vblk_part *part;
+
+	BUG_ON (!buffer);
+	BUG_ON (!vb);
+
+	r_objid  = ldm_relative (buffer, buflen, 0x18, 0);
+	r_name   = ldm_relative (buffer, buflen, 0x18, r_objid);
+	r_size   = ldm_relative (buffer, buflen, 0x34, r_name);
+	r_parent = ldm_relative (buffer, buflen, 0x34, r_size);
+	r_diskid = ldm_relative (buffer, buflen, 0x34, r_parent);
+
+	if (buffer[0x12] & VBLK_FLAG_PART_INDEX) {
+		r_index = ldm_relative (buffer, buflen, 0x34, r_diskid);
+		len = r_index;
+	} else {
+		r_index = 0;
+		len = r_diskid;
+	}
+	if (len < 0)
+		return FALSE;
+
+	len += VBLK_SIZE_PRT3;
+	if (len != BE32 (buffer + 0x14))
+		return FALSE;
+
+	part = &vb->vblk.part;
+	part->start         = BE64         (buffer + 0x24 + r_name);
+	part->volume_offset = BE64         (buffer + 0x2C + r_name);
+	part->size          = ldm_get_vnum (buffer + 0x34 + r_name);
+	part->parent_id     = ldm_get_vnum (buffer + 0x34 + r_size);
+	part->disk_id       = ldm_get_vnum (buffer + 0x34 + r_parent);
+	if (vb->flags & VBLK_FLAG_PART_INDEX)
+		part->partnum = buffer[0x35 + r_diskid];
+	else
+		part->partnum = 0;
+
+	return TRUE;
+}
+
+/**
+ * ldm_parse_vol5 - Read a raw VBLK Volume object into a vblk structure
+ * @buffer:  Block of data being worked on
+ * @buflen:  Size of the block of data
+ * @vb:      In-memory vblk in which to return information
+ *
+ * Read a raw VBLK Volume object (version 5) into a vblk structure.
+ *
+ * Return:  TRUE   @vb contains a Volume VBLK
+ *          FALSE  @vb contents are not defined
+ */
+static BOOL ldm_parse_vol5 (const u8 *buffer, int buflen, struct vblk *vb)
+{
+	int r_objid, r_name, r_vtype, r_child, r_size, r_id1, r_id2, r_size2;
+	int r_drive, len;
+	struct vblk_volu *volu;
+
+	BUG_ON (!buffer);
+	BUG_ON (!vb);
+
+	r_objid  = ldm_relative (buffer, buflen, 0x18, 0);
+	r_name   = ldm_relative (buffer, buflen, 0x18, r_objid);
+	r_vtype  = ldm_relative (buffer, buflen, 0x18, r_name);
+	r_child  = ldm_relative (buffer, buflen, 0x2E, r_vtype);
+	r_size   = ldm_relative (buffer, buflen, 0x3E, r_child);
+
+	if (buffer[0x12] & VBLK_FLAG_VOLU_ID1)
+		r_id1 = ldm_relative (buffer, buflen, 0x53, r_size);
+	else
+		r_id1 = r_size;
+
+	if (buffer[0x12] & VBLK_FLAG_VOLU_ID2)
+		r_id2 = ldm_relative (buffer, buflen, 0x53, r_id1);
+	else
+		r_id2 = r_id1;
+
+	if (buffer[0x12] & VBLK_FLAG_VOLU_SIZE)
+		r_size2 = ldm_relative (buffer, buflen, 0x53, r_id2);
+	else
+		r_size2 = r_id2;
+
+	if (buffer[0x12] & VBLK_FLAG_VOLU_DRIVE)
+		r_drive = ldm_relative (buffer, buflen, 0x53, r_size2);
+	else
+		r_drive = r_size2;
+
+	len = r_drive;
+	if (len < 0)
+		return FALSE;
+
+	len += VBLK_SIZE_VOL5;
+	if (len != BE32 (buffer + 0x14))
+		return FALSE;
+
+	volu = &vb->vblk.volu;
+
+	ldm_get_vstr (buffer + 0x18 + r_name,  volu->volume_type,
+		sizeof (volu->volume_type));
+	memcpy (volu->volume_state, buffer + 0x19 + r_vtype,
+			sizeof (volu->volume_state));
+	volu->size = ldm_get_vnum (buffer + 0x3E + r_child);
+	volu->partition_type = buffer[0x42 + r_size];
+	memcpy (volu->guid, buffer + 0x43 + r_size,  sizeof (volu->guid));
+	if (buffer[0x12] & VBLK_FLAG_VOLU_DRIVE) {
+		ldm_get_vstr (buffer + 0x53 + r_size,  volu->drive_hint,
+			sizeof (volu->drive_hint));
+	}
+	return TRUE;
+}
+
+/**
+ * ldm_parse_vblk - Read a raw VBLK object into a vblk structure
+ * @buf:  Block of data being worked on
+ * @len:  Size of the block of data
+ * @vb:   In-memory vblk in which to return information
+ *
+ * Read a raw VBLK object into a vblk structure.  This function just reads the
+ * information common to all VBLK types, then delegates the rest of the work to
+ * helper functions: ldm_parse_*.
+ *
+ * Return:  TRUE   @vb contains a VBLK
+ *          FALSE  @vb contents are not defined
+ */
+static BOOL ldm_parse_vblk (const u8 *buf, int len, struct vblk *vb)
+{
+	BOOL result = FALSE;
+	int r_objid;
+
+	BUG_ON (!buf);
+	BUG_ON (!vb);
+
+	r_objid = ldm_relative (buf, len, 0x18, 0);
+	if (r_objid < 0) {
+		ldm_error ("VBLK header is corrupt.");
+		return FALSE;
+	}
+
+	vb->flags  = buf[0x12];
+	vb->type   = buf[0x13];
+	vb->obj_id = ldm_get_vnum (buf + 0x18);
+	ldm_get_vstr (buf+0x18+r_objid, vb->name, sizeof (vb->name));
+
+	switch (vb->type) {
+		case VBLK_CMP3:  result = ldm_parse_cmp3 (buf, len, vb); break;
+		case VBLK_DSK3:  result = ldm_parse_dsk3 (buf, len, vb); break;
+		case VBLK_DSK4:  result = ldm_parse_dsk4 (buf, len, vb); break;
+		case VBLK_DGR3:  result = ldm_parse_dgr3 (buf, len, vb); break;
+		case VBLK_DGR4:  result = ldm_parse_dgr4 (buf, len, vb); break;
+		case VBLK_PRT3:  result = ldm_parse_prt3 (buf, len, vb); break;
+		case VBLK_VOL5:  result = ldm_parse_vol5 (buf, len, vb); break;
+	}
+
+	if (result)
+		ldm_debug ("Parsed VBLK 0x%llx (type: 0x%02x) ok.",
+			 (unsigned long long) vb->obj_id, vb->type);
+	else
+		ldm_error ("Failed to parse VBLK 0x%llx (type: 0x%02x).",
+			(unsigned long long) vb->obj_id, vb->type);
+
+	return result;
+}
+
+
+/**
+ * ldm_ldmdb_add - Adds a raw VBLK entry to the ldmdb database
+ * @data:  Raw VBLK to add to the database
+ * @len:   Size of the raw VBLK
+ * @ldb:   Cache of the database structures
+ *
+ * The VBLKs are sorted into categories.  Partitions are also sorted by offset.
+ *
+ * N.B.  This function does not check the validity of the VBLKs.
+ *
+ * Return:  TRUE   The VBLK was added
+ *          FALSE  An error occurred
+ */
+static BOOL ldm_ldmdb_add (u8 *data, int len, struct ldmdb *ldb)
+{
+	struct vblk *vb;
+	struct list_head *item;
+
+	BUG_ON (!data);
+	BUG_ON (!ldb);
+
+	vb = kmalloc (sizeof (*vb), GFP_KERNEL);
+	if (!vb) {
+		ldm_crit ("Out of memory.");
+		return FALSE;
+	}
+
+	if (!ldm_parse_vblk (data, len, vb)) {
+		kfree(vb);
+		return FALSE;			/* Already logged */
+	}
+
+	/* Put vblk into the correct list. */
+	switch (vb->type) {
+	case VBLK_DGR3:
+	case VBLK_DGR4:
+		list_add (&vb->list, &ldb->v_dgrp);
+		break;
+	case VBLK_DSK3:
+	case VBLK_DSK4:
+		list_add (&vb->list, &ldb->v_disk);
+		break;
+	case VBLK_VOL5:
+		list_add (&vb->list, &ldb->v_volu);
+		break;
+	case VBLK_CMP3:
+		list_add (&vb->list, &ldb->v_comp);
+		break;
+	case VBLK_PRT3:
+		/* Sort by the partition's start sector. */
+		list_for_each (item, &ldb->v_part) {
+			struct vblk *v = list_entry (item, struct vblk, list);
+			if ((v->vblk.part.disk_id == vb->vblk.part.disk_id) &&
+			    (v->vblk.part.start > vb->vblk.part.start)) {
+				list_add_tail (&vb->list, &v->list);
+				return TRUE;
+			}
+		}
+		list_add_tail (&vb->list, &ldb->v_part);
+		break;
+	}
+	return TRUE;
+}
+
+/**
+ * ldm_frag_add - Add a VBLK fragment to a list
+ * @data:   Raw fragment to be added to the list
+ * @size:   Size of the raw fragment
+ * @frags:  Linked list of VBLK fragments
+ *
+ * Fragmented VBLKs may not be consecutive in the database, so they are placed
+ * in a list so they can be pieced together later.
+ *
+ * Return:  TRUE   Success, the VBLK was added to the list
+ *          FALSE  Error, a problem occurred
+ */
+static BOOL ldm_frag_add (const u8 *data, int size, struct list_head *frags)
+{
+	struct frag *f;
+	struct list_head *item;
+	int rec, num, group;
+
+	BUG_ON (!data);
+	BUG_ON (!frags);
+
+	group = BE32 (data + 0x08);
+	rec   = BE16 (data + 0x0C);
+	num   = BE16 (data + 0x0E);
+	if ((num < 1) || (num > 4)) {
+		ldm_error ("A VBLK claims to have %d parts.", num);
+		return FALSE;
+	}
+
+	list_for_each (item, frags) {
+		f = list_entry (item, struct frag, list);
+		if (f->group == group)
+			goto found;
+	}
+
+	f = kmalloc (sizeof (*f) + size*num, GFP_KERNEL);
+	if (!f) {
+		ldm_crit ("Out of memory.");
+		return FALSE;
+	}
+
+	f->group = group;
+	f->num   = num;
+	f->rec   = rec;
+	f->map   = 0xFF << num;
+
+	list_add_tail (&f->list, frags);
+found:
+	if (f->map & (1 << rec)) {
+		ldm_error ("Duplicate VBLK, part %d.", rec);
+		f->map &= 0x7F;			/* Mark the group as broken */
+		return FALSE;
+	}
+
+	f->map |= (1 << rec);
+
+	if (num > 0) {
+		data += VBLK_SIZE_HEAD;
+		size -= VBLK_SIZE_HEAD;
+	}
+	memcpy (f->data+rec*(size-VBLK_SIZE_HEAD)+VBLK_SIZE_HEAD, data, size);
+
+	return TRUE;
+}
+
+/**
+ * ldm_frag_free - Free a linked list of VBLK fragments
+ * @list:  Linked list of fragments
+ *
+ * Free a linked list of VBLK fragments
+ *
+ * Return:  none
+ */
+static void ldm_frag_free (struct list_head *list)
+{
+	struct list_head *item, *tmp;
+
+	BUG_ON (!list);
+
+	list_for_each_safe (item, tmp, list)
+		kfree (list_entry (item, struct frag, list));
+}
+
+/**
+ * ldm_frag_commit - Validate fragmented VBLKs and add them to the database
+ * @frags:  Linked list of VBLK fragments
+ * @ldb:    Cache of the database structures
+ *
+ * Now that all the fragmented VBLKs have been collected, they must be added to
+ * the database for later use.
+ *
+ * Return:  TRUE   All the fragments we added successfully
+ *          FALSE  One or more of the fragments we invalid
+ */
+static BOOL ldm_frag_commit (struct list_head *frags, struct ldmdb *ldb)
+{
+	struct frag *f;
+	struct list_head *item;
+
+	BUG_ON (!frags);
+	BUG_ON (!ldb);
+
+	list_for_each (item, frags) {
+		f = list_entry (item, struct frag, list);
+
+		if (f->map != 0xFF) {
+			ldm_error ("VBLK group %d is incomplete (0x%02x).",
+				f->group, f->map);
+			return FALSE;
+		}
+
+		if (!ldm_ldmdb_add (f->data, f->num*ldb->vm.vblk_size, ldb))
+			return FALSE;		/* Already logged */
+	}
+	return TRUE;
+}
+
+/**
+ * ldm_get_vblks - Read the on-disk database of VBLKs into memory
+ * @bdev:  Device holding the LDM Database
+ * @base:  Offset, into @bdev, of the database
+ * @ldb:   Cache of the database structures
+ *
+ * To use the information from the VBLKs, they need to be read from the disk,
+ * unpacked and validated.  We cache them in @ldb according to their type.
+ *
+ * Return:  TRUE   All the VBLKs were read successfully
+ *          FALSE  An error occurred
+ */
+static BOOL ldm_get_vblks (struct block_device *bdev, unsigned long base,
+			   struct ldmdb *ldb)
+{
+	int size, perbuf, skip, finish, s, v, recs;
+	u8 *data = NULL;
+	Sector sect;
+	BOOL result = FALSE;
+	LIST_HEAD (frags);
+
+	BUG_ON (!bdev);
+	BUG_ON (!ldb);
+
+	size   = ldb->vm.vblk_size;
+	perbuf = 512 / size;
+	skip   = ldb->vm.vblk_offset >> 9;		/* Bytes to sectors */
+	finish = (size * ldb->vm.last_vblk_seq) >> 9;
+
+	for (s = skip; s < finish; s++) {		/* For each sector */
+		data = read_dev_sector (bdev, base + OFF_VMDB + s, &sect);
+		if (!data) {
+			ldm_crit ("Disk read failed.");
+			goto out;
+		}
+
+		for (v = 0; v < perbuf; v++, data+=size) {  /* For each vblk */
+			if (MAGIC_VBLK != BE32 (data)) {
+				ldm_error ("Expected to find a VBLK.");
+				goto out;
+			}
+
+			recs = BE16 (data + 0x0E);	/* Number of records */
+			if (recs == 1) {
+				if (!ldm_ldmdb_add (data, size, ldb))
+					goto out;	/* Already logged */
+			} else if (recs > 1) {
+				if (!ldm_frag_add (data, size, &frags))
+					goto out;	/* Already logged */
+			}
+			/* else Record is not in use, ignore it. */
+		}
+		put_dev_sector (sect);
+		data = NULL;
+	}
+
+	result = ldm_frag_commit (&frags, ldb);	/* Failures, already logged */
+out:
+	if (data)
+		put_dev_sector (sect);
+	ldm_frag_free (&frags);
+
+	return result;
+}
+
+/**
+ * ldm_free_vblks - Free a linked list of vblk's
+ * @lh:  Head of a linked list of struct vblk
+ *
+ * Free a list of vblk's and free the memory used to maintain the list.
+ *
+ * Return:  none
+ */
+static void ldm_free_vblks (struct list_head *lh)
+{
+	struct list_head *item, *tmp;
+
+	BUG_ON (!lh);
+
+	list_for_each_safe (item, tmp, lh)
+		kfree (list_entry (item, struct vblk, list));
+}
+
+
+/**
+ * ldm_partition - Find out whether a device is a dynamic disk and handle it
+ * @hd:            gendisk structure in which to return the handled disk
+ * @bdev:          Device we need to look at
+ * @first_sector:  First sector within the device
+ * @first_minor:   First minor number of partitions for the device
+ *
+ * This determines whether the device @bdev is a dynamic disk and if so creates
+ * the partitions necessary in the gendisk structure pointed to by @hd.
+ *
+ * We create a dummy device 1, which contains the LDM database, and then create
+ * each partition described by the LDM database in sequence as devices 2+. For
+ * example, if the device is hda, we would have: hda1: LDM database, hda2, hda3,
+ * and so on: the actual data containing partitions.
+ *
+ * Return:  1 Success, @bdev is a dynamic disk and we handled it
+ *          0 Success, @bdev is not a dynamic disk
+ *         -1 An error occurred before enough information had been read
+ *            Or @bdev is a dynamic disk, but it may be corrupted
+ */
+int ldm_partition (struct gendisk *hd, struct block_device *bdev,
+	unsigned long first_sector, int first_minor)
+{
+	struct ldmdb  *ldb;
+	unsigned long base;
+	int result = -1;
+
+	BUG_ON (!hd);
+	BUG_ON (!bdev);
+
+	/* Look for signs of a Dynamic Disk */
+	if (!ldm_validate_partition_table (bdev))
+		return 0;
+
+	ldb = kmalloc (sizeof (*ldb), GFP_KERNEL);
+	if (!ldb) {
+		ldm_crit ("Out of memory.");
+		goto out;
+	}
+
+	/* Parse and check privheads. */
+	if (!ldm_validate_privheads (bdev, first_sector, &ldb->ph, hd, first_minor))
+		goto out;		/* Already logged */
+
+	/* All further references are relative to base (database start). */
+	base = first_sector + ldb->ph.config_start;
+
+	/* Parse and check tocs and vmdb. */
+	if (!ldm_validate_tocblocks (bdev, base, ldb) ||
+	    !ldm_validate_vmdb      (bdev, base, ldb))
+	    	goto out;		/* Already logged */
+
+	/* Initialize vblk lists in ldmdb struct */
+	INIT_LIST_HEAD (&ldb->v_dgrp);
+	INIT_LIST_HEAD (&ldb->v_disk);
+	INIT_LIST_HEAD (&ldb->v_volu);
+	INIT_LIST_HEAD (&ldb->v_comp);
+	INIT_LIST_HEAD (&ldb->v_part);
+
+	if (!ldm_get_vblks (bdev, base, ldb)) {
+		ldm_crit ("Failed to read the VBLKs from the database.");
+		goto cleanup;
+	}
+
+	/* Finally, create the data partition devices. */
+	if (ldm_create_data_partitions (hd, first_sector, first_minor, ldb)) {
+		ldm_debug ("Parsed LDM database successfully.");
+		result = 1;
+	}
+	/* else Already logged */
+
+cleanup:
+	ldm_free_vblks (&ldb->v_dgrp);
+	ldm_free_vblks (&ldb->v_disk);
+	ldm_free_vblks (&ldb->v_volu);
+	ldm_free_vblks (&ldb->v_comp);
+	ldm_free_vblks (&ldb->v_part);
+out:
+	kfree (ldb);
+	return result;
+}
+
diff --git a/fs/partitions/ldm.h b/fs/partitions/ldm.h
new file mode 100644
index 00000000000000..dfc3097d95ccc6
--- /dev/null
+++ b/fs/partitions/ldm.h
@@ -0,0 +1,221 @@
+/**
+ * ldm - Part of the Linux-NTFS project.
+ *
+ * Copyright (C) 2001,2002 Richard Russon <ldm@flatcap.org>
+ * Copyright (C) 2001      Anton Altaparmakov <aia21@cantab.net>
+ * Copyright (C) 2001,2002 Jakob Kemi <jakob.kemi@telia.com>
+ *
+ * Documentation is available at http://linux-ntfs.sf.net/ldm
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program (in the main directory of the Linux-NTFS source
+ * in the file COPYING); if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef _FS_PT_LDM_H_
+#define _FS_PT_LDM_H_
+
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/genhd.h>
+#include <linux/fs.h>
+#include <asm/unaligned.h>
+#include <asm/byteorder.h>
+
+struct parsed_partitions;
+
+/* Magic numbers in CPU format. */
+#define MAGIC_VMDB	0x564D4442		/* VMDB */
+#define MAGIC_VBLK	0x56424C4B		/* VBLK */
+#define MAGIC_PRIVHEAD	0x5052495648454144ULL	/* PRIVHEAD */
+#define MAGIC_TOCBLOCK	0x544F43424C4F434BULL	/* TOCBLOCK */
+
+/* The defined vblk types. */
+#define VBLK_VOL5		0x51		/* Volume,     version 5 */
+#define VBLK_CMP3		0x32		/* Component,  version 3 */
+#define VBLK_PRT3		0x33		/* Partition,  version 3 */
+#define VBLK_DSK3		0x34		/* Disk,       version 3 */
+#define VBLK_DSK4		0x44		/* Disk,       version 4 */
+#define VBLK_DGR3		0x35		/* Disk Group, version 3 */
+#define VBLK_DGR4		0x45		/* Disk Group, version 4 */
+
+/* vblk flags indicating extra information will be present */
+#define	VBLK_FLAG_COMP_STRIPE	0x10
+#define	VBLK_FLAG_PART_INDEX	0x08
+#define	VBLK_FLAG_DGR3_IDS	0x08
+#define	VBLK_FLAG_DGR4_IDS	0x08
+#define	VBLK_FLAG_VOLU_ID1	0x08
+#define	VBLK_FLAG_VOLU_ID2	0x20
+#define	VBLK_FLAG_VOLU_SIZE	0x80
+#define	VBLK_FLAG_VOLU_DRIVE	0x02
+
+/* size of a vblk's static parts */
+#define VBLK_SIZE_HEAD		16
+#define VBLK_SIZE_CMP3		22		/* Name and version */
+#define VBLK_SIZE_DGR3		12
+#define VBLK_SIZE_DGR4		44
+#define VBLK_SIZE_DSK3		12
+#define VBLK_SIZE_DSK4		45
+#define VBLK_SIZE_PRT3		28
+#define VBLK_SIZE_VOL5		59
+
+/* component types */
+#define COMP_STRIPE		0x01		/* Stripe-set */
+#define COMP_BASIC		0x02		/* Basic disk */
+#define COMP_RAID		0x03		/* Raid-set */
+
+/* Other constants. */
+#define LDM_DB_SIZE		2048		/* Size in sectors (= 1MiB). */
+
+#define OFF_PRIV1		6		/* Offset of the first privhead
+						   relative to the start of the
+						   device in sectors */
+
+/* Offsets to structures within the LDM Database in sectors. */
+#define OFF_PRIV2		1856		/* Backup private headers. */
+#define OFF_PRIV3		2047
+
+#define OFF_TOCB1		1		/* Tables of contents. */
+#define OFF_TOCB2		2
+#define OFF_TOCB3		2045
+#define OFF_TOCB4		2046
+
+#define OFF_VMDB		17		/* List of partitions. */
+
+#define WIN2K_DYNAMIC_PARTITION	0x42		/* Formerly SFS (Landis). */
+
+#define TOC_BITMAP1		"config"	/* Names of the two defined */
+#define TOC_BITMAP2		"log"		/* bitmaps in the TOCBLOCK. */
+
+/* Most numbers we deal with are big-endian and won't be aligned. */
+#define BE16(x)			((u16)be16_to_cpu(get_unaligned((u16*)(x))))
+#define BE32(x)			((u32)be32_to_cpu(get_unaligned((u32*)(x))))
+#define BE64(x)			((u64)be64_to_cpu(get_unaligned((u64*)(x))))
+
+/* Borrowed from msdos.c */
+#define SYS_IND(p)		(get_unaligned(&(p)->sys_ind))
+
+struct frag {				/* VBLK Fragment handling */
+	struct list_head list;
+	u32		group;
+	u8		num;		/* Total number of records */
+	u8		rec;		/* This is record number n */
+	u8		map;		/* Which portions are in use */
+	u8		data[0];
+};
+
+/* In memory LDM database structures. */
+
+#define GUID_SIZE		16
+
+struct privhead {			/* Offsets and sizes are in sectors. */
+	u16	ver_major;
+	u16	ver_minor;
+	u64	logical_disk_start;
+	u64	logical_disk_size;
+	u64	config_start;
+	u64	config_size;
+	u8	disk_id[GUID_SIZE];
+};
+
+struct tocblock {			/* We have exactly two bitmaps. */
+	u8	bitmap1_name[16];
+	u64	bitmap1_start;
+	u64	bitmap1_size;
+	u8	bitmap2_name[16];
+	u64	bitmap2_start;
+	u64	bitmap2_size;
+};
+
+struct vmdb {				/* VMDB: The database header */
+	u16	ver_major;
+	u16	ver_minor;
+	u32	vblk_size;
+	u32	vblk_offset;
+	u32	last_vblk_seq;
+};
+
+struct vblk_comp {			/* VBLK Component */
+	u8	state[16];
+	u64	parent_id;
+	u8	type;
+	u8	children;
+	u16	chunksize;
+};
+
+struct vblk_dgrp {			/* VBLK Disk Group */
+	u8	disk_id[64];
+};
+
+struct vblk_disk {			/* VBLK Disk */
+	u8	disk_id[GUID_SIZE];
+	u8	alt_name[128];
+};
+
+struct vblk_part {			/* VBLK Partition */
+	u64	start;
+	u64	size;			/* start, size and vol_off in sectors */
+	u64	volume_offset;
+	u64	parent_id;
+	u64	disk_id;
+	u8	partnum;
+};
+
+struct vblk_volu {			/* VBLK Volume */
+	u8	volume_type[16];
+	u8	volume_state[16];
+	u8	guid[16];
+	u8	drive_hint[4];
+	u64	size;
+	u8	partition_type;
+};
+
+struct vblk_head {			/* VBLK standard header */
+	u32 group;
+	u16 rec;
+	u16 nrec;
+};
+
+struct vblk {				/* Generalised VBLK */
+	u8	name[64];
+	u64	obj_id;
+	u32	sequence;
+	u8	flags;
+	u8	type;
+	union {
+		struct vblk_comp comp;
+		struct vblk_dgrp dgrp;
+		struct vblk_disk disk;
+		struct vblk_part part;
+		struct vblk_volu volu;
+	} vblk;
+	struct list_head list;
+};
+
+struct ldmdb {				/* Cache of the database */
+	struct privhead ph;
+	struct tocblock toc;
+	struct vmdb     vm;
+	struct list_head v_dgrp;
+	struct list_head v_disk;
+	struct list_head v_volu;
+	struct list_head v_comp;
+	struct list_head v_part;
+};
+
+int ldm_partition (struct gendisk *hd, struct block_device *bdev,
+	unsigned long first_sector, int first_minor);
+
+#endif /* _FS_PT_LDM_H_ */
+
diff --git a/fs/partitions/mac.c b/fs/partitions/mac.c
new file mode 100644
index 00000000000000..52c898e30a1122
--- /dev/null
+++ b/fs/partitions/mac.c
@@ -0,0 +1,77 @@
+/*
+ *  fs/partitions/mac.c
+ *
+ *  Code extracted from drivers/block/genhd.c
+ *  Copyright (C) 1991-1998  Linus Torvalds
+ *  Re-organised Feb 1998 Russell King
+ */
+
+#include <linux/config.h>
+#include <linux/fs.h>
+#include <linux/genhd.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/string.h>
+#include <linux/blk.h>
+#include <linux/ctype.h>
+
+#include <asm/system.h>
+
+#include "check.h"
+#include "mac.h"
+
+/*
+ * Code to understand MacOS partition tables.
+ */
+
+int mac_partition(struct gendisk *hd, struct block_device *bdev,
+		unsigned long fsec, int first_part_minor)
+{
+	Sector sect;
+	unsigned char *data;
+	int blk, blocks_in_map;
+	unsigned secsize;
+	struct mac_partition *part;
+	struct mac_driver_desc *md;
+
+	/* Get 0th block and look at the first partition map entry. */
+	md = (struct mac_driver_desc *) read_dev_sector(bdev, 0, &sect);
+	if (!md)
+		return -1;
+	if (be16_to_cpu(md->signature) != MAC_DRIVER_MAGIC) {
+		put_dev_sector(sect);
+		return 0;
+	}
+	secsize = be16_to_cpu(md->block_size);
+	put_dev_sector(sect);
+	data = read_dev_sector(bdev, secsize/512, &sect);
+	if (!data)
+		return -1;
+	part = (struct mac_partition *) (data + secsize%512);
+	if (be16_to_cpu(part->signature) != MAC_PARTITION_MAGIC) {
+		put_dev_sector(sect);
+		return 0;		/* not a MacOS disk */
+	}
+	printk(" [mac]");
+	blocks_in_map = be32_to_cpu(part->map_count);
+	for (blk = 1; blk <= blocks_in_map; ++blk) {
+		int pos = blk * secsize;
+		put_dev_sector(sect);
+		data = read_dev_sector(bdev, pos/512, &sect);
+		if (!data)
+			return -1;
+		part = (struct mac_partition *) (data + pos%512);
+		if (be16_to_cpu(part->signature) != MAC_PARTITION_MAGIC)
+			break;
+		add_gd_partition(hd, first_part_minor,
+			fsec + be32_to_cpu(part->start_block) * (secsize/512),
+			be32_to_cpu(part->block_count) * (secsize/512));
+
+		++first_part_minor;
+	}
+
+	put_dev_sector(sect);
+	printk("\n");
+	return 1;
+}
+
diff --git a/fs/partitions/mac.h b/fs/partitions/mac.h
new file mode 100644
index 00000000000000..cbd8861865694a
--- /dev/null
+++ b/fs/partitions/mac.h
@@ -0,0 +1,52 @@
+/*
+ *  fs/partitions/mac.h
+ */
+
+#define MAC_PARTITION_MAGIC	0x504d
+
+/* type field value for A/UX or other Unix partitions */
+#define APPLE_AUX_TYPE	"Apple_UNIX_SVR2"
+
+struct mac_partition {
+	__u16	signature;	/* expected to be MAC_PARTITION_MAGIC */
+	__u16	res1;
+	__u32	map_count;	/* # blocks in partition map */
+	__u32	start_block;	/* absolute starting block # of partition */
+	__u32	block_count;	/* number of blocks in partition */
+	char	name[32];	/* partition name */
+	char	type[32];	/* string type description */
+	__u32	data_start;	/* rel block # of first data block */
+	__u32	data_count;	/* number of data blocks */
+	__u32	status;		/* partition status bits */
+	__u32	boot_start;
+	__u32	boot_size;
+	__u32	boot_load;
+	__u32	boot_load2;
+	__u32	boot_entry;
+	__u32	boot_entry2;
+	__u32	boot_cksum;
+	char	processor[16];	/* identifies ISA of boot */
+	/* there is more stuff after this that we don't need */
+};
+
+static inline void macpart_fix_string(char *stg, int len)
+{
+	int i;
+
+	for (i = len - 1; i >= 0 && stg[i] == ' '; i--)
+		stg[i] = 0;
+}
+
+#define MAC_STATUS_BOOTABLE	8	/* partition is bootable */
+
+#define MAC_DRIVER_MAGIC	0x4552
+
+/* Driver descriptor structure, in block 0 */
+struct mac_driver_desc {
+	__u16	signature;	/* expected to be MAC_DRIVER_MAGIC */
+	__u16	block_size;
+	__u32	block_count;
+    /* ... more stuff */
+};
+
+int mac_partition(struct gendisk *hd, struct block_device *bdev, unsigned long fsec, int first_part_minor);
diff --git a/fs/partitions/msdos.c b/fs/partitions/msdos.c
new file mode 100644
index 00000000000000..46b15a4e9d13c6
--- /dev/null
+++ b/fs/partitions/msdos.c
@@ -0,0 +1,641 @@
+/*
+ *  fs/partitions/msdos.c
+ *
+ *  Code extracted from drivers/block/genhd.c
+ *  Copyright (C) 1991-1998  Linus Torvalds
+ *
+ *  Thanks to Branko Lankester, lankeste@fwi.uva.nl, who found a bug
+ *  in the early extended-partition checks and added DM partitions
+ *
+ *  Support for DiskManager v6.0x added by Mark Lord,
+ *  with information provided by OnTrack.  This now works for linux fdisk
+ *  and LILO, as well as loadlin and bootln.  Note that disks other than
+ *  /dev/hda *must* have a "DOS" type 0x51 partition in the first slot (hda1).
+ *
+ *  More flexible handling of extended partitions - aeb, 950831
+ *
+ *  Check partition table on IDE disks for common CHS translations
+ *
+ *  Re-organised Feb 1998 Russell King
+ */
+
+#include <linux/config.h>
+#include <linux/fs.h>
+#include <linux/genhd.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/string.h>
+#include <linux/blk.h>
+
+#ifdef CONFIG_BLK_DEV_IDE
+#include <linux/ide.h>	/* IDE xlate */
+#elif defined(CONFIG_BLK_DEV_IDE_MODULE)
+#include <linux/module.h>
+
+int (*ide_xlate_1024_hook)(kdev_t, int, int, const char *);
+EXPORT_SYMBOL(ide_xlate_1024_hook);
+#define ide_xlate_1024 ide_xlate_1024_hook
+#endif
+
+#include <asm/system.h>
+
+#include "check.h"
+#include "msdos.h"
+
+#if CONFIG_BLK_DEV_MD
+extern void md_autodetect_dev(kdev_t dev);
+#endif
+
+/*
+ * Many architectures don't like unaligned accesses, which is
+ * frequently the case with the nr_sects and start_sect partition
+ * table entries.
+ */
+#include <asm/unaligned.h>
+
+#define SYS_IND(p)	(get_unaligned(&p->sys_ind))
+#define NR_SECTS(p)	({ __typeof__(p->nr_sects) __a =	\
+				get_unaligned(&p->nr_sects);	\
+				le32_to_cpu(__a); \
+			})
+
+#define START_SECT(p)	({ __typeof__(p->start_sect) __a =	\
+				get_unaligned(&p->start_sect);	\
+				le32_to_cpu(__a); \
+			})
+
+static inline int is_extended_partition(struct partition *p)
+{
+	return (SYS_IND(p) == DOS_EXTENDED_PARTITION ||
+		SYS_IND(p) == WIN98_EXTENDED_PARTITION ||
+		SYS_IND(p) == LINUX_EXTENDED_PARTITION);
+}
+
+/*
+ * msdos_partition_name() formats the short partition name into the supplied
+ * buffer, and returns a pointer to that buffer.
+ * Used by several partition types which makes conditional inclusion messy,
+ * use __attribute__ ((unused)) instead.
+ */
+static char __attribute__ ((unused))
+	*msdos_partition_name (struct gendisk *hd, int minor, char *buf)
+{
+#ifdef CONFIG_DEVFS_FS
+	sprintf(buf, "p%d", (minor & ((1 << hd->minor_shift) - 1)));
+	return buf;
+#else
+	return disk_name(hd, minor, buf);
+#endif
+}
+
+#define MSDOS_LABEL_MAGIC1	0x55
+#define MSDOS_LABEL_MAGIC2	0xAA
+
+static inline int
+msdos_magic_present(unsigned char *p)
+{
+	return (p[0] == MSDOS_LABEL_MAGIC1 && p[1] == MSDOS_LABEL_MAGIC2);
+}
+
+/*
+ * Create devices for each logical partition in an extended partition.
+ * The logical partitions form a linked list, with each entry being
+ * a partition table with two entries.  The first entry
+ * is the real data partition (with a start relative to the partition
+ * table start).  The second is a pointer to the next logical partition
+ * (with a start relative to the entire extended partition).
+ * We do not create a Linux partition for the partition tables, but
+ * only for the actual data partitions.
+ */
+
+static void extended_partition(struct gendisk *hd, struct block_device *bdev,
+			int minor, unsigned long first_size, int *current_minor)
+{
+	struct partition *p;
+	Sector sect;
+	unsigned char *data;
+	unsigned long first_sector, this_sector, this_size;
+	int mask = (1 << hd->minor_shift) - 1;
+	int sector_size = get_hardsect_size(to_kdev_t(bdev->bd_dev)) / 512;
+	int loopct = 0;		/* number of links followed
+				   without finding a data partition */
+	int i;
+
+	this_sector = first_sector = hd->part[minor].start_sect;
+	this_size = first_size;
+
+	while (1) {
+		if (++loopct > 100)
+			return;
+		if ((*current_minor & mask) == 0)
+			return;
+		data = read_dev_sector(bdev, this_sector, &sect);
+		if (!data)
+			return;
+
+		if (!msdos_magic_present(data + 510))
+			goto done; 
+
+		p = (struct partition *) (data + 0x1be);
+
+		/*
+		 * Usually, the first entry is the real data partition,
+		 * the 2nd entry is the next extended partition, or empty,
+		 * and the 3rd and 4th entries are unused.
+		 * However, DRDOS sometimes has the extended partition as
+		 * the first entry (when the data partition is empty),
+		 * and OS/2 seems to use all four entries.
+		 */
+
+		/* 
+		 * First process the data partition(s)
+		 */
+		for (i=0; i<4; i++, p++) {
+			unsigned long offs, size, next;
+			if (!NR_SECTS(p) || is_extended_partition(p))
+				continue;
+
+			/* Check the 3rd and 4th entries -
+			   these sometimes contain random garbage */
+			offs = START_SECT(p)*sector_size;
+			size = NR_SECTS(p)*sector_size;
+			next = this_sector + offs;
+			if (i >= 2) {
+				if (offs + size > this_size)
+					continue;
+				if (next < first_sector)
+					continue;
+				if (next + size > first_sector + first_size)
+					continue;
+			}
+
+			add_gd_partition(hd, *current_minor, next, size);
+#if CONFIG_BLK_DEV_MD
+			if (SYS_IND(p) == LINUX_RAID_PARTITION) {
+			    md_autodetect_dev(MKDEV(hd->major,*current_minor));
+			}
+#endif
+
+			(*current_minor)++;
+			loopct = 0;
+			if ((*current_minor & mask) == 0)
+				goto done;
+		}
+		/*
+		 * Next, process the (first) extended partition, if present.
+		 * (So far, there seems to be no reason to make
+		 *  extended_partition()  recursive and allow a tree
+		 *  of extended partitions.)
+		 * It should be a link to the next logical partition.
+		 * Create a minor for this just long enough to get the next
+		 * partition table.  The minor will be reused for the next
+		 * data partition.
+		 */
+		p -= 4;
+		for (i=0; i<4; i++, p++)
+			if (NR_SECTS(p) && is_extended_partition(p))
+				break;
+		if (i == 4)
+			goto done;	 /* nothing left to do */
+
+		this_sector = first_sector + START_SECT(p) * sector_size;
+		this_size = NR_SECTS(p) * sector_size;
+		minor = *current_minor;
+		put_dev_sector(sect);
+	}
+done:
+	put_dev_sector(sect);
+}
+
+/* james@bpgc.com: Solaris has a nasty indicator: 0x82 which also
+   indicates linux swap.  Be careful before believing this is Solaris. */
+
+static void
+solaris_x86_partition(struct gendisk *hd, struct block_device *bdev,
+		int minor, int *current_minor)
+{
+
+#ifdef CONFIG_SOLARIS_X86_PARTITION
+	long offset = hd->part[minor].start_sect;
+	Sector sect;
+	struct solaris_x86_vtoc *v;
+	struct solaris_x86_slice *s;
+	int mask = (1 << hd->minor_shift) - 1;
+	int i;
+	char buf[40];
+
+	v = (struct solaris_x86_vtoc *)read_dev_sector(bdev, offset+1, &sect);
+	if (!v)
+		return;
+	if (le32_to_cpu(v->v_sanity) != SOLARIS_X86_VTOC_SANE) {
+		put_dev_sector(sect);
+		return;
+	}
+	printk(" %s: <solaris:", msdos_partition_name(hd, minor, buf));
+	if (le32_to_cpu(v->v_version) != 1) {
+		printk("  cannot handle version %d vtoc>\n",
+			le32_to_cpu(v->v_version));
+		put_dev_sector(sect);
+		return;
+	}
+	for (i=0; i<SOLARIS_X86_NUMSLICE; i++) {
+		if ((*current_minor & mask) == 0)
+			break;
+		s = &v->v_slice[i];
+
+		if (s->s_size == 0)
+			continue;
+		printk(" [s%d]", i);
+		/* solaris partitions are relative to current MS-DOS
+		 * one but add_gd_partition starts relative to sector
+		 * zero of the disk.  Therefore, must add the offset
+		 * of the current partition */
+		add_gd_partition(hd, *current_minor,
+				 le32_to_cpu(s->s_start)+offset,
+				 le32_to_cpu(s->s_size));
+		(*current_minor)++;
+	}
+	put_dev_sector(sect);
+	printk(" >\n");
+#endif
+}
+
+#ifdef CONFIG_BSD_DISKLABEL
+static void
+check_and_add_bsd_partition(struct gendisk *hd, struct bsd_partition *bsd_p,
+	int baseminor, int *current_minor)
+{
+	int i, bsd_start, bsd_size;
+
+	bsd_start = le32_to_cpu(bsd_p->p_offset);
+	bsd_size = le32_to_cpu(bsd_p->p_size);
+
+	/* check relative position of already allocated partitions */
+	for (i = baseminor+1; i < *current_minor; i++) {
+		int start = hd->part[i].start_sect;
+		int size = hd->part[i].nr_sects;
+
+		if (start+size <= bsd_start || start >= bsd_start+bsd_size)
+			continue;	/* no overlap */
+
+		if (start == bsd_start && size == bsd_size)
+			return;		/* equal -> no need to add */
+
+		if (start <= bsd_start && start+size >= bsd_start+bsd_size) {
+			/* bsd living within dos partition */
+#ifdef DEBUG_BSD_DISKLABEL
+			printk("w: %d %ld+%ld,%d+%d", 
+			       i, start, size, bsd_start, bsd_size);
+#endif
+			break;		/* ok */
+		}
+
+		/* ouch: bsd and linux overlap */
+#ifdef DEBUG_BSD_DISKLABEL
+		printk("???: %d %ld+%ld,%d+%d",
+		       i, start, size, bsd_start, bsd_size);
+#endif
+		printk("???");
+		return;
+	}
+
+	add_gd_partition(hd, *current_minor, bsd_start, bsd_size);
+	(*current_minor)++;
+}
+
+/* 
+ * Create devices for BSD partitions listed in a disklabel, under a
+ * dos-like partition. See extended_partition() for more information.
+ */
+static void do_bsd_partition(struct gendisk *hd, struct block_device *bdev,
+	int minor, int *current_minor, char *name, int max_partitions)
+{
+	long offset = hd->part[minor].start_sect;
+	Sector sect;
+	struct bsd_disklabel *l;
+	struct bsd_partition *p;
+	int mask = (1 << hd->minor_shift) - 1;
+	int baseminor = (minor & ~mask);
+	char buf[40];
+
+	l = (struct bsd_disklabel *)read_dev_sector(bdev, offset+1, &sect);
+	if (!l)
+		return;
+	if (le32_to_cpu(l->d_magic) != BSD_DISKMAGIC) {
+		put_dev_sector(sect);
+		return;
+	}
+	printk(" %s: <%s:", msdos_partition_name(hd, minor, buf), name);
+
+	if (le16_to_cpu(l->d_npartitions) < max_partitions)
+		max_partitions = le16_to_cpu(l->d_npartitions);
+	for (p = l->d_partitions; p - l->d_partitions <  max_partitions; p++) {
+		if ((*current_minor & mask) == 0)
+			break;
+		if (p->p_fstype == BSD_FS_UNUSED) 
+			continue;
+		check_and_add_bsd_partition(hd, p, baseminor, current_minor);
+	}
+	put_dev_sector(sect);
+	printk(" >\n");
+}
+#endif
+
+static void bsd_partition(struct gendisk *hd, struct block_device *bdev,
+	int minor, int *current_minor)
+{
+#ifdef CONFIG_BSD_DISKLABEL
+	do_bsd_partition(hd, bdev, minor, current_minor, "bsd",
+		BSD_MAXPARTITIONS);
+#endif
+}
+
+static void netbsd_partition(struct gendisk *hd, struct block_device *bdev,
+		int minor, int *current_minor)
+{
+#ifdef CONFIG_BSD_DISKLABEL
+	do_bsd_partition(hd, bdev, minor, current_minor, "netbsd",
+			BSD_MAXPARTITIONS);
+#endif
+}
+
+static void openbsd_partition(struct gendisk *hd, struct block_device *bdev,
+		int minor, int *current_minor)
+{
+#ifdef CONFIG_BSD_DISKLABEL
+	do_bsd_partition(hd, bdev, minor, current_minor,
+			"openbsd", OPENBSD_MAXPARTITIONS);
+#endif
+}
+
+/*
+ * Create devices for Unixware partitions listed in a disklabel, under a
+ * dos-like partition. See extended_partition() for more information.
+ */
+static void unixware_partition(struct gendisk *hd, struct block_device *bdev,
+		int minor, int *current_minor)
+{
+#ifdef CONFIG_UNIXWARE_DISKLABEL
+	long offset = hd->part[minor].start_sect;
+	Sector sect;
+	struct unixware_disklabel *l;
+	struct unixware_slice *p;
+	int mask = (1 << hd->minor_shift) - 1;
+	char buf[40];
+
+	l = (struct unixware_disklabel *)read_dev_sector(bdev, offset+29, &sect);
+	if (!l)
+		return;
+	if (le32_to_cpu(l->d_magic) != UNIXWARE_DISKMAGIC ||
+	    le32_to_cpu(l->vtoc.v_magic) != UNIXWARE_DISKMAGIC2) {
+		put_dev_sector(sect);
+		return;
+	}
+	printk(" %s: <unixware:", msdos_partition_name(hd, minor, buf));
+	p = &l->vtoc.v_slice[1];
+	/* I omit the 0th slice as it is the same as whole disk. */
+	while (p - &l->vtoc.v_slice[0] < UNIXWARE_NUMSLICE) {
+		if ((*current_minor & mask) == 0)
+			break;
+
+		if (p->s_label != UNIXWARE_FS_UNUSED) {
+			add_gd_partition(hd, *current_minor, START_SECT(p),
+					 NR_SECTS(p));
+			(*current_minor)++;
+		}
+		p++;
+	}
+	put_dev_sector(sect);
+	printk(" >\n");
+#endif
+}
+
+/*
+ * Minix 2.0.0/2.0.2 subpartition support.
+ * Anand Krishnamurthy <anandk@wiproge.med.ge.com>
+ * Rajeev V. Pillai    <rajeevvp@yahoo.com>
+ */
+static void minix_partition(struct gendisk *hd, struct block_device *bdev,
+		int minor, int *current_minor)
+{
+#ifdef CONFIG_MINIX_SUBPARTITION
+	long offset = hd->part[minor].start_sect;
+	Sector sect;
+	unsigned char *data;
+	struct partition *p;
+	int mask = (1 << hd->minor_shift) - 1;
+	int i;
+	char buf[40];
+
+	data = read_dev_sector(bdev, offset, &sect);
+	if (!data)
+		return;
+
+	p = (struct partition *)(data + 0x1be);
+
+	/* The first sector of a Minix partition can have either
+	 * a secondary MBR describing its subpartitions, or
+	 * the normal boot sector. */
+	if (msdos_magic_present (data + 510) &&
+	    SYS_IND(p) == MINIX_PARTITION) { /* subpartition table present */
+
+		printk(" %s: <minix:", msdos_partition_name(hd, minor, buf));
+		for (i = 0; i < MINIX_NR_SUBPARTITIONS; i++, p++) {
+			if ((*current_minor & mask) == 0)
+				break;
+			/* add each partition in use */
+			if (SYS_IND(p) == MINIX_PARTITION) {
+				add_gd_partition(hd, *current_minor,
+					      START_SECT(p), NR_SECTS(p));
+				(*current_minor)++;
+			}
+		}
+		printk(" >\n");
+	}
+	put_dev_sector(sect);
+#endif /* CONFIG_MINIX_SUBPARTITION */
+}
+
+static struct {
+	unsigned char id;
+	void (*parse)(struct gendisk *, struct block_device *, int, int *);
+} subtypes[] = {
+	{BSD_PARTITION, bsd_partition},
+	{NETBSD_PARTITION, netbsd_partition},
+	{OPENBSD_PARTITION, openbsd_partition},
+	{MINIX_PARTITION, minix_partition},
+	{UNIXWARE_PARTITION, unixware_partition},
+	{SOLARIS_X86_PARTITION, solaris_x86_partition},
+	{0, NULL},
+};
+/*
+ * Look for various forms of IDE disk geometry translation
+ */
+static int handle_ide_mess(struct block_device *bdev)
+{
+#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
+	Sector sect;
+	unsigned char *data;
+	kdev_t dev = to_kdev_t(bdev->bd_dev);
+	unsigned int sig;
+	int heads = 0;
+	struct partition *p;
+	int i;
+#ifdef CONFIG_BLK_DEV_IDE_MODULE
+	if (!ide_xlate_1024)
+		return 1;
+#endif
+	/*
+	 * The i386 partition handling programs very often
+	 * make partitions end on cylinder boundaries.
+	 * There is no need to do so, and Linux fdisk doesn't always
+	 * do this, and Windows NT on Alpha doesn't do this either,
+	 * but still, this helps to guess #heads.
+	 */
+	data = read_dev_sector(bdev, 0, &sect);
+	if (!data)
+		return -1;
+	if (!msdos_magic_present(data + 510)) {
+		put_dev_sector(sect);
+		return 0;
+	}
+	sig = le16_to_cpu(*(unsigned short *)(data + 2));
+	p = (struct partition *) (data + 0x1be);
+	for (i = 0; i < 4; i++) {
+		struct partition *q = &p[i];
+		if (NR_SECTS(q)) {
+			if ((q->sector & 63) == 1 &&
+			    (q->end_sector & 63) == 63)
+				heads = q->end_head + 1;
+			break;
+		}
+	}
+	if (SYS_IND(p) == EZD_PARTITION) {
+		/*
+		 * Accesses to sector 0 must go to sector 1 instead.
+		 */
+		if (ide_xlate_1024(dev, -1, heads, " [EZD]"))
+			goto reread;
+	} else if (SYS_IND(p) == DM6_PARTITION) {
+
+		/*
+		 * Everything on the disk is offset by 63 sectors,
+		 * including a "new" MBR with its own partition table.
+		 */
+		if (ide_xlate_1024(dev, 1, heads, " [DM6:DDO]"))
+			goto reread;
+	} else if (sig <= 0x1ae &&
+		   data[sig] == 0xAA && data[sig+1] == 0x55 &&
+		   (data[sig+2] & 1)) {
+		/* DM6 signature in MBR, courtesy of OnTrack */
+		(void) ide_xlate_1024 (dev, 0, heads, " [DM6:MBR]");
+	} else if (SYS_IND(p) == DM6_AUX1PARTITION ||
+		   SYS_IND(p) == DM6_AUX3PARTITION) {
+		/*
+		 * DM6 on other than the first (boot) drive
+		 */
+		(void) ide_xlate_1024(dev, 0, heads, " [DM6:AUX]");
+	} else {
+		(void) ide_xlate_1024(dev, 2, heads, " [PTBL]");
+	}
+	put_dev_sector(sect);
+	return 1;
+
+reread:
+	put_dev_sector(sect);
+	/* Flush the cache */
+	invalidate_bdev(bdev, 1);
+	truncate_inode_pages(bdev->bd_inode->i_mapping, 0);
+#endif /* defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE) */
+	return 1;
+}
+ 
+int msdos_partition(struct gendisk *hd, struct block_device *bdev,
+		    unsigned long first_sector, int first_part_minor)
+{
+	int i, minor = first_part_minor;
+	Sector sect;
+	struct partition *p;
+	unsigned char *data;
+	int mask = (1 << hd->minor_shift) - 1;
+	int sector_size = get_hardsect_size(to_kdev_t(bdev->bd_dev)) / 512;
+	int current_minor = first_part_minor;
+	int err;
+
+	err = handle_ide_mess(bdev);
+	if (err <= 0)
+		return err;
+	data = read_dev_sector(bdev, 0, &sect);
+	if (!data)
+		return -1;
+	if (!msdos_magic_present(data + 510)) {
+		put_dev_sector(sect);
+		return 0;
+	}
+	p = (struct partition *) (data + 0x1be);
+
+	/*
+	 * Look for partitions in two passes:
+	 * First find the primary and DOS-type extended partitions.
+	 * On the second pass look inside *BSD, Unixware and Solaris partitions.
+	 */
+
+	current_minor += 4;
+	for (i=1 ; i<=4 ; minor++,i++,p++) {
+		if (!NR_SECTS(p))
+			continue;
+		add_gd_partition(hd, minor,
+				first_sector+START_SECT(p)*sector_size,
+				NR_SECTS(p)*sector_size);
+#if CONFIG_BLK_DEV_MD
+		if (SYS_IND(p) == LINUX_RAID_PARTITION) {
+			md_autodetect_dev(MKDEV(hd->major,minor));
+		}
+#endif
+		if (is_extended_partition(p)) {
+			unsigned long size = hd->part[minor].nr_sects;
+			printk(" <");
+			/* prevent someone doing mkfs or mkswap on an
+			   extended partition, but leave room for LILO */
+			if (size > 2)
+				hd->part[minor].nr_sects = 2;
+			extended_partition(hd, bdev, minor, size, &current_minor);
+			printk(" >");
+		}
+	}
+
+	/*
+	 *  Check for old-style Disk Manager partition table
+	 */
+	if (msdos_magic_present(data + 0xfc)) {
+		p = (struct partition *) (0x1be + data);
+		for (i = 4 ; i < 16 ; i++, current_minor++) {
+			p--;
+			if ((current_minor & mask) == 0)
+				break;
+			if (!(START_SECT(p) && NR_SECTS(p)))
+				continue;
+			add_gd_partition(hd, current_minor, START_SECT(p), NR_SECTS(p));
+		}
+	}
+	printk("\n");
+
+	/* second pass - output for each on a separate line */
+	minor -= 4;
+	p = (struct partition *) (0x1be + data);
+	for (i=1 ; i<=4 ; minor++,i++,p++) {
+		unsigned char id = SYS_IND(p);
+		int n;
+
+		if (!NR_SECTS(p))
+			continue;
+
+		for (n = 0; subtypes[n].parse && id != subtypes[n].id; n++)
+			;
+
+		if (subtypes[n].parse)
+			subtypes[n].parse(hd, bdev, minor, &current_minor);
+	}
+	put_dev_sector(sect);
+	return 1;
+}
diff --git a/fs/partitions/msdos.h b/fs/partitions/msdos.h
new file mode 100644
index 00000000000000..09c8b095ad5609
--- /dev/null
+++ b/fs/partitions/msdos.h
@@ -0,0 +1,9 @@
+/*
+ *  fs/partitions/msdos.h
+ */
+
+#define MSDOS_LABEL_MAGIC		0xAA55
+
+int msdos_partition(struct gendisk *hd, struct block_device *bdev,
+		    unsigned long first_sector, int first_part_minor);
+
diff --git a/fs/partitions/osf.c b/fs/partitions/osf.c
new file mode 100644
index 00000000000000..e178ca2b6543b4
--- /dev/null
+++ b/fs/partitions/osf.c
@@ -0,0 +1,87 @@
+/*
+ *  fs/partitions/osf.c
+ *
+ *  Code extracted from drivers/block/genhd.c
+ *
+ *  Copyright (C) 1991-1998  Linus Torvalds
+ *  Re-organised Feb 1998 Russell King
+ */
+
+#include <linux/fs.h>
+#include <linux/genhd.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/string.h>
+#include <linux/blk.h>
+
+#include "check.h"
+#include "osf.h"
+
+int osf_partition(struct gendisk *hd, struct block_device *bdev,
+		unsigned long first_sector, int current_minor)
+{
+	int i;
+	Sector sect;
+	unsigned char *data;
+	int mask = (1 << hd->minor_shift) - 1;
+	struct disklabel {
+		u32 d_magic;
+		u16 d_type,d_subtype;
+		u8 d_typename[16];
+		u8 d_packname[16];
+		u32 d_secsize;
+		u32 d_nsectors;
+		u32 d_ntracks;
+		u32 d_ncylinders;
+		u32 d_secpercyl;
+		u32 d_secprtunit;
+		u16 d_sparespertrack;
+		u16 d_sparespercyl;
+		u32 d_acylinders;
+		u16 d_rpm, d_interleave, d_trackskew, d_cylskew;
+		u32 d_headswitch, d_trkseek, d_flags;
+		u32 d_drivedata[5];
+		u32 d_spare[5];
+		u32 d_magic2;
+		u16 d_checksum;
+		u16 d_npartitions;
+		u32 d_bbsize, d_sbsize;
+		struct d_partition {
+			u32 p_size;
+			u32 p_offset;
+			u32 p_fsize;
+			u8  p_fstype;
+			u8  p_frag;
+			u16 p_cpg;
+		} d_partitions[8];
+	} * label;
+	struct d_partition * partition;
+
+	data = read_dev_sector(bdev, 0, &sect);
+	if (!data)
+		return -1;
+
+	label = (struct disklabel *) (data+64);
+	partition = label->d_partitions;
+	if (le32_to_cpu(label->d_magic) != DISKLABELMAGIC) {
+		put_dev_sector(sect);
+		return 0;
+	}
+	if (le32_to_cpu(label->d_magic2) != DISKLABELMAGIC) {
+		put_dev_sector(sect);
+		return 0;
+	}
+	for (i = 0 ; i < le16_to_cpu(label->d_npartitions); i++, partition++) {
+		if ((current_minor & mask) == 0)
+		        break;
+		if (le32_to_cpu(partition->p_size))
+			add_gd_partition(hd, current_minor,
+				first_sector+le32_to_cpu(partition->p_offset),
+				le32_to_cpu(partition->p_size));
+		current_minor++;
+	}
+	printk("\n");
+	put_dev_sector(sect);
+	return 1;
+}
+
diff --git a/fs/partitions/osf.h b/fs/partitions/osf.h
new file mode 100644
index 00000000000000..6f02393c490b6d
--- /dev/null
+++ b/fs/partitions/osf.h
@@ -0,0 +1,9 @@
+/*
+ *  fs/partitions/osf.h
+ */
+
+#define DISKLABELMAGIC (0x82564557UL)
+
+int osf_partition(struct gendisk *hd, struct block_device *bdev,
+		unsigned long first_sector, int current_minor);
+
diff --git a/fs/partitions/sgi.c b/fs/partitions/sgi.c
new file mode 100644
index 00000000000000..ea74ebb4b57b59
--- /dev/null
+++ b/fs/partitions/sgi.c
@@ -0,0 +1,85 @@
+/*
+ *  fs/partitions/sgi.c
+ *
+ *  Code extracted from drivers/block/genhd.c
+ */
+
+#include <linux/fs.h>
+#include <linux/genhd.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/string.h>
+#include <linux/blk.h>
+
+#include <asm/byteorder.h>
+#include <asm/system.h>
+
+#include "check.h"
+#include "sgi.h"
+
+int sgi_partition(struct gendisk *hd, struct block_device *bdev, unsigned long first_sector, int current_minor)
+{
+	int i, csum, magic;
+	unsigned int *ui, start, blocks, cs;
+	Sector sect;
+	kdev_t dev = to_kdev_t(bdev->bd_dev);
+	struct sgi_disklabel {
+		int magic_mushroom;         /* Big fat spliff... */
+		short root_part_num;        /* Root partition number */
+		short swap_part_num;        /* Swap partition number */
+		char boot_file[16];         /* Name of boot file for ARCS */
+		unsigned char _unused0[48]; /* Device parameter useless crapola.. */
+		struct sgi_volume {
+			char name[8];       /* Name of volume */
+			int  block_num;     /* Logical block number */
+			int  num_bytes;     /* How big, in bytes */
+		} volume[15];
+		struct sgi_partition {
+			int num_blocks;     /* Size in logical blocks */
+			int first_block;    /* First logical block */
+			int type;           /* Type of this partition */
+		} partitions[16];
+		int csum;                   /* Disk label checksum */
+		int _unused1;               /* Padding */
+	} *label;
+	struct sgi_partition *p;
+
+	label = (struct sgi_disklabel *) read_dev_sector(bdev, 0, &sect);
+	if (!label)
+		return -1;
+	p = &label->partitions[0];
+	magic = label->magic_mushroom;
+	if(be32_to_cpu(magic) != SGI_LABEL_MAGIC) {
+		/*printk("Dev %s SGI disklabel: bad magic %08x\n",
+		       bdevname(dev), magic);*/
+		put_dev_sector(sect);
+		return 0;
+	}
+	ui = ((unsigned int *) (label + 1)) - 1;
+	for(csum = 0; ui >= ((unsigned int *) label);) {
+		cs = *ui--;
+		csum += be32_to_cpu(cs);
+	}
+	if(csum) {
+		printk(KERN_WARNING "Dev %s SGI disklabel: csum bad, label corrupted\n",
+		       bdevname(dev));
+		put_dev_sector(sect);
+		return 0;
+	}
+	/* All SGI disk labels have 16 partitions, disks under Linux only
+	 * have 15 minor's.  Luckily there are always a few zero length
+	 * partitions which we don't care about so we never overflow the
+	 * current_minor.
+	 */
+	for(i = 0; i < 16; i++, p++) {
+		blocks = be32_to_cpu(p->num_blocks);
+		start  = be32_to_cpu(p->first_block);
+		if(!blocks)
+			continue;
+		add_gd_partition(hd, current_minor, start, blocks);
+		current_minor++;
+	}
+	printk("\n");
+	put_dev_sector(sect);
+	return 1;
+}
diff --git a/fs/partitions/sgi.h b/fs/partitions/sgi.h
new file mode 100644
index 00000000000000..55840d9285e576
--- /dev/null
+++ b/fs/partitions/sgi.h
@@ -0,0 +1,9 @@
+/*
+ *  fs/partitions/sgi.h
+ */
+
+extern int sgi_partition(struct gendisk *hd, struct block_device *bdev,
+	 unsigned long first_sector, int first_part_minor);
+
+#define SGI_LABEL_MAGIC 0x0be5a941
+
diff --git a/fs/partitions/sun.c b/fs/partitions/sun.c
new file mode 100644
index 00000000000000..a0ca0b17260726
--- /dev/null
+++ b/fs/partitions/sun.c
@@ -0,0 +1,107 @@
+/*
+ *  fs/partitions/sun.c
+ *
+ *  Code extracted from drivers/block/genhd.c
+ *
+ *  Copyright (C) 1991-1998  Linus Torvalds
+ *  Re-organised Feb 1998 Russell King
+ */
+
+#include <linux/config.h>
+#include <linux/fs.h>
+#include <linux/genhd.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/string.h>
+#include <linux/blk.h>
+
+#include <asm/system.h>
+
+#include "check.h"
+#include "sun.h"
+
+#ifdef CONFIG_BLK_DEV_MD
+extern void md_autodetect_dev(kdev_t dev);
+#endif
+
+int sun_partition(struct gendisk *hd, struct block_device *bdev, unsigned long first_sector, int first_part_minor)
+{
+	int i, csum;
+	unsigned short *ush;
+	Sector sect;
+	kdev_t dev = to_kdev_t(bdev->bd_dev);
+	struct sun_disklabel {
+		unsigned char info[128];   /* Informative text string */
+		unsigned char spare0[14];
+		struct sun_info {
+			unsigned char spare1;
+			unsigned char id;
+			unsigned char spare2;
+			unsigned char flags;
+		} infos[8];
+		unsigned char spare[246];  /* Boot information etc. */
+		unsigned short rspeed;     /* Disk rotational speed */
+		unsigned short pcylcount;  /* Physical cylinder count */
+		unsigned short sparecyl;   /* extra sects per cylinder */
+		unsigned char spare2[4];   /* More magic... */
+		unsigned short ilfact;     /* Interleave factor */
+		unsigned short ncyl;       /* Data cylinder count */
+		unsigned short nacyl;      /* Alt. cylinder count */
+		unsigned short ntrks;      /* Tracks per cylinder */
+		unsigned short nsect;      /* Sectors per track */
+		unsigned char spare3[4];   /* Even more magic... */
+		struct sun_partition {
+			__u32 start_cylinder;
+			__u32 num_sectors;
+		} partitions[8];
+		unsigned short magic;      /* Magic number */
+		unsigned short csum;       /* Label xor'd checksum */
+	} * label;		
+	struct sun_partition *p;
+	unsigned long spc;
+
+	label = (struct sun_disklabel *)read_dev_sector(bdev, 0, &sect);
+	if (!label)
+		return -1;
+
+	p = label->partitions;
+	if (be16_to_cpu(label->magic) != SUN_LABEL_MAGIC) {
+/*		printk(KERN_INFO "Dev %s Sun disklabel: bad magic %04x\n",
+		       bdevname(dev), be16_to_cpu(label->magic)); */
+		put_dev_sector(sect);
+		return 0;
+	}
+	/* Look at the checksum */
+	ush = ((unsigned short *) (label+1)) - 1;
+	for (csum = 0; ush >= ((unsigned short *) label);)
+		csum ^= *ush--;
+	if (csum) {
+		printk("Dev %s Sun disklabel: Csum bad, label corrupted\n",
+		       bdevname(dev));
+		put_dev_sector(sect);
+		return 0;
+	}
+
+	/* All Sun disks have 8 partition entries */
+	spc = be16_to_cpu(label->ntrks) * be16_to_cpu(label->nsect);
+	for (i = 0; i < 8; i++, p++) {
+		unsigned long st_sector;
+		int num_sectors;
+
+		st_sector = first_sector + be32_to_cpu(p->start_cylinder) * spc;
+		num_sectors = be32_to_cpu(p->num_sectors);
+		if (num_sectors) {
+			add_gd_partition(hd, first_part_minor,
+					 st_sector, num_sectors);
+#ifdef CONFIG_BLK_DEV_MD
+			if (label->infos[i].id == LINUX_RAID_PARTITION)
+				md_autodetect_dev(MKDEV(hd->major,
+							first_part_minor));
+#endif
+		}
+		first_part_minor++;
+	}
+	printk("\n");
+	put_dev_sector(sect);
+	return 1;
+}
diff --git a/fs/partitions/sun.h b/fs/partitions/sun.h
new file mode 100644
index 00000000000000..ae2f9579ef8755
--- /dev/null
+++ b/fs/partitions/sun.h
@@ -0,0 +1,9 @@
+/*
+ *  fs/partitions/sun.h
+ */
+
+#define SUN_LABEL_MAGIC          0xDABE
+
+int sun_partition(struct gendisk *hd, struct block_device *bdev,
+		  unsigned long first_sector, int first_part_minor);
+
diff --git a/fs/partitions/ultrix.c b/fs/partitions/ultrix.c
new file mode 100644
index 00000000000000..a7e0629dd2da58
--- /dev/null
+++ b/fs/partitions/ultrix.c
@@ -0,0 +1,54 @@
+/*
+ *  fs/partitions/ultrix.c
+ *
+ *  Code extracted from drivers/block/genhd.c
+ *
+ *  Re-organised Jul 1999 Russell King
+ */
+
+#include <linux/fs.h>
+#include <linux/genhd.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/blk.h>
+
+#include "check.h"
+
+int ultrix_partition(struct gendisk *hd, struct block_device *bdev,
+                            unsigned long first_sector, int first_part_minor)
+{
+	int i;
+	Sector sect;
+	unsigned char *data;
+	struct ultrix_disklabel {
+		s32	pt_magic;	/* magic no. indicating part. info exits */
+		s32	pt_valid;	/* set by driver if pt is current */
+		struct  pt_info {
+			s32		pi_nblocks; /* no. of sectors */
+			u32		pi_blkoff;  /* block offset for start */
+		} pt_part[8];
+	} *label;
+
+#define PT_MAGIC	0x032957	/* Partition magic number */
+#define PT_VALID	1		/* Indicates if struct is valid */
+
+	data = read_dev_sector(bdev, (16384 - sizeof(*label))/512, &sect);
+	if (!data)
+		return -1;
+	
+	label = (struct ultrix_disklabel *)(data + 512 - sizeof(*label));
+
+	if (label->pt_magic == PT_MAGIC && label->pt_valid == PT_VALID) {
+		for (i=0; i<8; i++, first_part_minor++)
+			if (label->pt_part[i].pi_nblocks)
+				add_gd_partition(hd, first_part_minor, 
+					      label->pt_part[i].pi_blkoff,
+					      label->pt_part[i].pi_nblocks);
+		put_dev_sector(sect);
+		printk ("\n");
+		return 1;
+	} else {
+		put_dev_sector(sect);
+		return 0;
+	}
+}
diff --git a/fs/partitions/ultrix.h b/fs/partitions/ultrix.h
new file mode 100644
index 00000000000000..1572c90d90bee7
--- /dev/null
+++ b/fs/partitions/ultrix.h
@@ -0,0 +1,7 @@
+/*
+ *  fs/partitions/ultrix.h
+ */
+
+int ultrix_partition(struct gendisk *hd, struct block_device *bdev,
+                     unsigned long first_sector, int first_part_minor);
+
diff --git a/fs/pipe.c b/fs/pipe.c
new file mode 100644
index 00000000000000..704a95840350e6
--- /dev/null
+++ b/fs/pipe.c
@@ -0,0 +1,650 @@
+/*
+ *  linux/fs/pipe.c
+ *
+ *  Copyright (C) 1991, 1992, 1999  Linus Torvalds
+ */
+
+#include <linux/mm.h>
+#include <linux/file.h>
+#include <linux/poll.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/init.h>
+
+#include <asm/uaccess.h>
+#include <asm/ioctls.h>
+
+/*
+ * We use a start+len construction, which provides full use of the 
+ * allocated memory.
+ * -- Florian Coosmann (FGC)
+ * 
+ * Reads with count = 0 should always return 0.
+ * -- Julian Bradfield 1999-06-07.
+ */
+
+/* Drop the inode semaphore and wait for a pipe event, atomically */
+void pipe_wait(struct inode * inode)
+{
+	DECLARE_WAITQUEUE(wait, current);
+	current->state = TASK_INTERRUPTIBLE;
+	add_wait_queue(PIPE_WAIT(*inode), &wait);
+	up(PIPE_SEM(*inode));
+	schedule();
+	remove_wait_queue(PIPE_WAIT(*inode), &wait);
+	current->state = TASK_RUNNING;
+	down(PIPE_SEM(*inode));
+}
+
+static ssize_t
+pipe_read(struct file *filp, char *buf, size_t count, loff_t *ppos)
+{
+	struct inode *inode = filp->f_dentry->d_inode;
+	ssize_t size, read, ret;
+
+	/* Seeks are not allowed on pipes.  */
+	ret = -ESPIPE;
+	read = 0;
+	if (ppos != &filp->f_pos)
+		goto out_nolock;
+
+	/* Always return 0 on null read.  */
+	ret = 0;
+	if (count == 0)
+		goto out_nolock;
+
+	/* Get the pipe semaphore */
+	ret = -ERESTARTSYS;
+	if (down_interruptible(PIPE_SEM(*inode)))
+		goto out_nolock;
+
+	if (PIPE_EMPTY(*inode)) {
+do_more_read:
+		ret = 0;
+		if (!PIPE_WRITERS(*inode))
+			goto out;
+
+		ret = -EAGAIN;
+		if (filp->f_flags & O_NONBLOCK)
+			goto out;
+
+		for (;;) {
+			PIPE_WAITING_READERS(*inode)++;
+			pipe_wait(inode);
+			PIPE_WAITING_READERS(*inode)--;
+			ret = -ERESTARTSYS;
+			if (signal_pending(current))
+				goto out;
+			ret = 0;
+			if (!PIPE_EMPTY(*inode))
+				break;
+			if (!PIPE_WRITERS(*inode))
+				goto out;
+		}
+	}
+
+	/* Read what data is available.  */
+	ret = -EFAULT;
+	while (count > 0 && (size = PIPE_LEN(*inode))) {
+		char *pipebuf = PIPE_BASE(*inode) + PIPE_START(*inode);
+		ssize_t chars = PIPE_MAX_RCHUNK(*inode);
+
+		if (chars > count)
+			chars = count;
+		if (chars > size)
+			chars = size;
+
+		if (copy_to_user(buf, pipebuf, chars))
+			goto out;
+
+		read += chars;
+		PIPE_START(*inode) += chars;
+		PIPE_START(*inode) &= (PIPE_SIZE - 1);
+		PIPE_LEN(*inode) -= chars;
+		count -= chars;
+		buf += chars;
+	}
+
+	/* Cache behaviour optimization */
+	if (!PIPE_LEN(*inode))
+		PIPE_START(*inode) = 0;
+
+	if (count && PIPE_WAITING_WRITERS(*inode) && !(filp->f_flags & O_NONBLOCK)) {
+		/*
+		 * We know that we are going to sleep: signal
+		 * writers synchronously that there is more
+		 * room.
+		 */
+		wake_up_interruptible_sync(PIPE_WAIT(*inode));
+		if (!PIPE_EMPTY(*inode))
+			BUG();
+		goto do_more_read;
+	}
+	/* Signal writers asynchronously that there is more room.  */
+	wake_up_interruptible(PIPE_WAIT(*inode));
+
+	ret = read;
+out:
+	up(PIPE_SEM(*inode));
+out_nolock:
+	if (read)
+		ret = read;
+
+	UPDATE_ATIME(inode);
+	return ret;
+}
+
+static ssize_t
+pipe_write(struct file *filp, const char *buf, size_t count, loff_t *ppos)
+{
+	struct inode *inode = filp->f_dentry->d_inode;
+	ssize_t free, written, ret;
+
+	/* Seeks are not allowed on pipes.  */
+	ret = -ESPIPE;
+	written = 0;
+	if (ppos != &filp->f_pos)
+		goto out_nolock;
+
+	/* Null write succeeds.  */
+	ret = 0;
+	if (count == 0)
+		goto out_nolock;
+
+	ret = -ERESTARTSYS;
+	if (down_interruptible(PIPE_SEM(*inode)))
+		goto out_nolock;
+
+	/* No readers yields SIGPIPE.  */
+	if (!PIPE_READERS(*inode))
+		goto sigpipe;
+
+	/* If count <= PIPE_BUF, we have to make it atomic.  */
+	free = (count <= PIPE_BUF ? count : 1);
+
+	/* Wait, or check for, available space.  */
+	if (filp->f_flags & O_NONBLOCK) {
+		ret = -EAGAIN;
+		if (PIPE_FREE(*inode) < free)
+			goto out;
+	} else {
+		while (PIPE_FREE(*inode) < free) {
+			PIPE_WAITING_WRITERS(*inode)++;
+			pipe_wait(inode);
+			PIPE_WAITING_WRITERS(*inode)--;
+			ret = -ERESTARTSYS;
+			if (signal_pending(current))
+				goto out;
+
+			if (!PIPE_READERS(*inode))
+				goto sigpipe;
+		}
+	}
+
+	/* Copy into available space.  */
+	ret = -EFAULT;
+	while (count > 0) {
+		int space;
+		char *pipebuf = PIPE_BASE(*inode) + PIPE_END(*inode);
+		ssize_t chars = PIPE_MAX_WCHUNK(*inode);
+
+		if ((space = PIPE_FREE(*inode)) != 0) {
+			if (chars > count)
+				chars = count;
+			if (chars > space)
+				chars = space;
+
+			if (copy_from_user(pipebuf, buf, chars))
+				goto out;
+
+			written += chars;
+			PIPE_LEN(*inode) += chars;
+			count -= chars;
+			buf += chars;
+			space = PIPE_FREE(*inode);
+			continue;
+		}
+
+		ret = written;
+		if (filp->f_flags & O_NONBLOCK)
+			break;
+
+		do {
+			/*
+			 * Synchronous wake-up: it knows that this process
+			 * is going to give up this CPU, so it doesn't have
+			 * to do idle reschedules.
+			 */
+			wake_up_interruptible_sync(PIPE_WAIT(*inode));
+			PIPE_WAITING_WRITERS(*inode)++;
+			pipe_wait(inode);
+			PIPE_WAITING_WRITERS(*inode)--;
+			if (signal_pending(current))
+				goto out;
+			if (!PIPE_READERS(*inode))
+				goto sigpipe;
+		} while (!PIPE_FREE(*inode));
+		ret = -EFAULT;
+	}
+
+	/* Signal readers asynchronously that there is more data.  */
+	wake_up_interruptible(PIPE_WAIT(*inode));
+
+	update_mctime(inode);
+
+out:
+	up(PIPE_SEM(*inode));
+out_nolock:
+	if (written)
+		ret = written;
+	return ret;
+
+sigpipe:
+	if (written)
+		goto out;
+	up(PIPE_SEM(*inode));
+	send_sig(SIGPIPE, current, 0);
+	return -EPIPE;
+}
+
+static ssize_t
+bad_pipe_r(struct file *filp, char *buf, size_t count, loff_t *ppos)
+{
+	return -EBADF;
+}
+
+static ssize_t
+bad_pipe_w(struct file *filp, const char *buf, size_t count, loff_t *ppos)
+{
+	return -EBADF;
+}
+
+static int
+pipe_ioctl(struct inode *pino, struct file *filp,
+	   unsigned int cmd, unsigned long arg)
+{
+	switch (cmd) {
+		case FIONREAD:
+			return put_user(PIPE_LEN(*pino), (int *)arg);
+		default:
+			return -EINVAL;
+	}
+}
+
+/* No kernel lock held - fine */
+static unsigned int
+pipe_poll(struct file *filp, poll_table *wait)
+{
+	unsigned int mask;
+	struct inode *inode = filp->f_dentry->d_inode;
+
+	poll_wait(filp, PIPE_WAIT(*inode), wait);
+
+	/* Reading only -- no need for acquiring the semaphore.  */
+	mask = POLLIN | POLLRDNORM;
+	if (PIPE_EMPTY(*inode))
+		mask = POLLOUT | POLLWRNORM;
+	if (!PIPE_WRITERS(*inode) && filp->f_version != PIPE_WCOUNTER(*inode))
+		mask |= POLLHUP;
+	if (!PIPE_READERS(*inode))
+		mask |= POLLERR;
+
+	return mask;
+}
+
+/* FIXME: most Unices do not set POLLERR for fifos */
+#define fifo_poll pipe_poll
+
+static int
+pipe_release(struct inode *inode, int decr, int decw)
+{
+	down(PIPE_SEM(*inode));
+	PIPE_READERS(*inode) -= decr;
+	PIPE_WRITERS(*inode) -= decw;
+	if (!PIPE_READERS(*inode) && !PIPE_WRITERS(*inode)) {
+		struct pipe_inode_info *info = inode->i_pipe;
+		inode->i_pipe = NULL;
+		free_page((unsigned long) info->base);
+		kfree(info);
+	} else {
+		wake_up_interruptible(PIPE_WAIT(*inode));
+	}
+	up(PIPE_SEM(*inode));
+
+	return 0;
+}
+
+static int
+pipe_read_release(struct inode *inode, struct file *filp)
+{
+	return pipe_release(inode, 1, 0);
+}
+
+static int
+pipe_write_release(struct inode *inode, struct file *filp)
+{
+	return pipe_release(inode, 0, 1);
+}
+
+static int
+pipe_rdwr_release(struct inode *inode, struct file *filp)
+{
+	int decr, decw;
+
+	decr = (filp->f_mode & FMODE_READ) != 0;
+	decw = (filp->f_mode & FMODE_WRITE) != 0;
+	return pipe_release(inode, decr, decw);
+}
+
+static int
+pipe_read_open(struct inode *inode, struct file *filp)
+{
+	/* We could have perhaps used atomic_t, but this and friends
+	   below are the only places.  So it doesn't seem worthwhile.  */
+	down(PIPE_SEM(*inode));
+	PIPE_READERS(*inode)++;
+	up(PIPE_SEM(*inode));
+
+	return 0;
+}
+
+static int
+pipe_write_open(struct inode *inode, struct file *filp)
+{
+	down(PIPE_SEM(*inode));
+	PIPE_WRITERS(*inode)++;
+	up(PIPE_SEM(*inode));
+
+	return 0;
+}
+
+static int
+pipe_rdwr_open(struct inode *inode, struct file *filp)
+{
+	down(PIPE_SEM(*inode));
+	if (filp->f_mode & FMODE_READ)
+		PIPE_READERS(*inode)++;
+	if (filp->f_mode & FMODE_WRITE)
+		PIPE_WRITERS(*inode)++;
+	up(PIPE_SEM(*inode));
+
+	return 0;
+}
+
+/*
+ * The file_operations structs are not static because they
+ * are also used in linux/fs/fifo.c to do operations on FIFOs.
+ */
+struct file_operations read_fifo_fops = {
+	llseek:		no_llseek,
+	read:		pipe_read,
+	write:		bad_pipe_w,
+	poll:		fifo_poll,
+	ioctl:		pipe_ioctl,
+	open:		pipe_read_open,
+	release:	pipe_read_release,
+};
+
+struct file_operations write_fifo_fops = {
+	llseek:		no_llseek,
+	read:		bad_pipe_r,
+	write:		pipe_write,
+	poll:		fifo_poll,
+	ioctl:		pipe_ioctl,
+	open:		pipe_write_open,
+	release:	pipe_write_release,
+};
+
+struct file_operations rdwr_fifo_fops = {
+	llseek:		no_llseek,
+	read:		pipe_read,
+	write:		pipe_write,
+	poll:		fifo_poll,
+	ioctl:		pipe_ioctl,
+	open:		pipe_rdwr_open,
+	release:	pipe_rdwr_release,
+};
+
+struct file_operations read_pipe_fops = {
+	llseek:		no_llseek,
+	read:		pipe_read,
+	write:		bad_pipe_w,
+	poll:		pipe_poll,
+	ioctl:		pipe_ioctl,
+	open:		pipe_read_open,
+	release:	pipe_read_release,
+};
+
+struct file_operations write_pipe_fops = {
+	llseek:		no_llseek,
+	read:		bad_pipe_r,
+	write:		pipe_write,
+	poll:		pipe_poll,
+	ioctl:		pipe_ioctl,
+	open:		pipe_write_open,
+	release:	pipe_write_release,
+};
+
+struct file_operations rdwr_pipe_fops = {
+	llseek:		no_llseek,
+	read:		pipe_read,
+	write:		pipe_write,
+	poll:		pipe_poll,
+	ioctl:		pipe_ioctl,
+	open:		pipe_rdwr_open,
+	release:	pipe_rdwr_release,
+};
+
+struct inode* pipe_new(struct inode* inode)
+{
+	unsigned long page;
+
+	page = __get_free_page(GFP_USER);
+	if (!page)
+		return NULL;
+
+	inode->i_pipe = kmalloc(sizeof(struct pipe_inode_info), GFP_KERNEL);
+	if (!inode->i_pipe)
+		goto fail_page;
+
+	init_waitqueue_head(PIPE_WAIT(*inode));
+	PIPE_BASE(*inode) = (char*) page;
+	PIPE_START(*inode) = PIPE_LEN(*inode) = 0;
+	PIPE_READERS(*inode) = PIPE_WRITERS(*inode) = 0;
+	PIPE_WAITING_READERS(*inode) = PIPE_WAITING_WRITERS(*inode) = 0;
+	PIPE_RCOUNTER(*inode) = PIPE_WCOUNTER(*inode) = 1;
+
+	return inode;
+fail_page:
+	free_page(page);
+	return NULL;
+}
+
+static struct vfsmount *pipe_mnt;
+static int pipefs_delete_dentry(struct dentry *dentry)
+{
+	return 1;
+}
+static struct dentry_operations pipefs_dentry_operations = {
+	d_delete:	pipefs_delete_dentry,
+};
+
+static struct inode * get_pipe_inode(void)
+{
+	struct inode *inode = new_inode(pipe_mnt->mnt_sb);
+
+	if (!inode)
+		goto fail_inode;
+
+	if(!pipe_new(inode))
+		goto fail_iput;
+	PIPE_READERS(*inode) = PIPE_WRITERS(*inode) = 1;
+	inode->i_fop = &rdwr_pipe_fops;
+
+	/*
+	 * Mark the inode dirty from the very beginning,
+	 * that way it will never be moved to the dirty
+	 * list because "mark_inode_dirty()" will think
+	 * that it already _is_ on the dirty list.
+	 */
+	inode->i_state = I_DIRTY;
+	inode->i_mode = S_IFIFO | S_IRUSR | S_IWUSR;
+	inode->i_uid = current->fsuid;
+	inode->i_gid = current->fsgid;
+	inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+	inode->i_blksize = PAGE_SIZE;
+	return inode;
+
+fail_iput:
+	iput(inode);
+fail_inode:
+	return NULL;
+}
+
+int do_pipe(int *fd)
+{
+	struct qstr this;
+	char name[32];
+	struct dentry *dentry;
+	struct inode * inode;
+	struct file *f1, *f2;
+	int error;
+	int i,j;
+
+	error = -ENFILE;
+	f1 = get_empty_filp();
+	if (!f1)
+		goto no_files;
+
+	f2 = get_empty_filp();
+	if (!f2)
+		goto close_f1;
+
+	inode = get_pipe_inode();
+	if (!inode)
+		goto close_f12;
+
+	error = get_unused_fd();
+	if (error < 0)
+		goto close_f12_inode;
+	i = error;
+
+	error = get_unused_fd();
+	if (error < 0)
+		goto close_f12_inode_i;
+	j = error;
+
+	error = -ENOMEM;
+	sprintf(name, "[%lu]", inode->i_ino);
+	this.name = name;
+	this.len = strlen(name);
+	this.hash = inode->i_ino; /* will go */
+	dentry = d_alloc(pipe_mnt->mnt_sb->s_root, &this);
+	if (!dentry)
+		goto close_f12_inode_i_j;
+	dentry->d_op = &pipefs_dentry_operations;
+	d_add(dentry, inode);
+	f1->f_vfsmnt = f2->f_vfsmnt = mntget(mntget(pipe_mnt));
+	f1->f_dentry = f2->f_dentry = dget(dentry);
+
+	/* read file */
+	f1->f_pos = f2->f_pos = 0;
+	f1->f_flags = O_RDONLY;
+	f1->f_op = &read_pipe_fops;
+	f1->f_mode = 1;
+	f1->f_version = 0;
+
+	/* write file */
+	f2->f_flags = O_WRONLY;
+	f2->f_op = &write_pipe_fops;
+	f2->f_mode = 2;
+	f2->f_version = 0;
+
+	fd_install(i, f1);
+	fd_install(j, f2);
+	fd[0] = i;
+	fd[1] = j;
+	return 0;
+
+close_f12_inode_i_j:
+	put_unused_fd(j);
+close_f12_inode_i:
+	put_unused_fd(i);
+close_f12_inode:
+	free_page((unsigned long) PIPE_BASE(*inode));
+	kfree(inode->i_pipe);
+	inode->i_pipe = NULL;
+	iput(inode);
+close_f12:
+	put_filp(f2);
+close_f1:
+	put_filp(f1);
+no_files:
+	return error;	
+}
+
+/*
+ * pipefs should _never_ be mounted by userland - too much of security hassle,
+ * no real gain from having the whole whorehouse mounted. So we don't need
+ * any operations on the root directory. However, we need a non-trivial
+ * d_name - pipe: will go nicely and kill the special-casing in procfs.
+ */
+static int pipefs_statfs(struct super_block *sb, struct statfs *buf)
+{
+	buf->f_type = PIPEFS_MAGIC;
+	buf->f_bsize = 1024;
+	buf->f_namelen = 255;
+	return 0;
+}
+
+static struct super_operations pipefs_ops = {
+	statfs:		pipefs_statfs,
+};
+
+static struct super_block * pipefs_read_super(struct super_block *sb, void *data, int silent)
+{
+	struct inode *root = new_inode(sb);
+	if (!root)
+		return NULL;
+	root->i_mode = S_IFDIR | S_IRUSR | S_IWUSR;
+	root->i_uid = root->i_gid = 0;
+	root->i_atime = root->i_mtime = root->i_ctime = CURRENT_TIME;
+	sb->s_blocksize = 1024;
+	sb->s_blocksize_bits = 10;
+	sb->s_magic = PIPEFS_MAGIC;
+	sb->s_op	= &pipefs_ops;
+	sb->s_root = d_alloc(NULL, &(const struct qstr) { "pipe:", 5, 0 });
+	if (!sb->s_root) {
+		iput(root);
+		return NULL;
+	}
+	sb->s_root->d_sb = sb;
+	sb->s_root->d_parent = sb->s_root;
+	d_instantiate(sb->s_root, root);
+	return sb;
+}
+
+static DECLARE_FSTYPE(pipe_fs_type, "pipefs", pipefs_read_super, FS_NOMOUNT);
+
+static int __init init_pipe_fs(void)
+{
+	int err = register_filesystem(&pipe_fs_type);
+	if (!err) {
+		pipe_mnt = kern_mount(&pipe_fs_type);
+		err = PTR_ERR(pipe_mnt);
+		if (IS_ERR(pipe_mnt))
+			unregister_filesystem(&pipe_fs_type);
+		else
+			err = 0;
+	}
+	return err;
+}
+
+static void __exit exit_pipe_fs(void)
+{
+	unregister_filesystem(&pipe_fs_type);
+	mntput(pipe_mnt);
+}
+
+module_init(init_pipe_fs)
+module_exit(exit_pipe_fs)
diff --git a/fs/proc/Makefile b/fs/proc/Makefile
new file mode 100644
index 00000000000000..95160610eba0fd
--- /dev/null
+++ b/fs/proc/Makefile
@@ -0,0 +1,21 @@
+#
+# Makefile for the Linux proc filesystem routines.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile.
+
+O_TARGET := proc.o
+
+export-objs := root.o
+
+obj-y    := inode.o root.o base.o generic.o array.o \
+		kmsg.o proc_tty.o proc_misc.o kcore.o
+
+ifeq ($(CONFIG_PROC_DEVICETREE),y)
+obj-y += proc_devtree.o
+endif
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/proc/array.c b/fs/proc/array.c
new file mode 100644
index 00000000000000..324ef38fe8a3c0
--- /dev/null
+++ b/fs/proc/array.c
@@ -0,0 +1,629 @@
+/*
+ *  linux/fs/proc/array.c
+ *
+ *  Copyright (C) 1992  by Linus Torvalds
+ *  based on ideas by Darren Senn
+ *
+ * Fixes:
+ * Michael. K. Johnson: stat,statm extensions.
+ *                      <johnsonm@stolaf.edu>
+ *
+ * Pauline Middelink :  Made cmdline,envline only break at '\0's, to
+ *                      make sure SET_PROCTITLE works. Also removed
+ *                      bad '!' which forced address recalculation for
+ *                      EVERY character on the current page.
+ *                      <middelin@polyware.iaf.nl>
+ *
+ * Danny ter Haar    :	added cpuinfo
+ *			<dth@cistron.nl>
+ *
+ * Alessandro Rubini :  profile extension.
+ *                      <rubini@ipvvis.unipv.it>
+ *
+ * Jeff Tranter      :  added BogoMips field to cpuinfo
+ *                      <Jeff_Tranter@Mitel.COM>
+ *
+ * Bruno Haible      :  remove 4K limit for the maps file
+ *			<haible@ma2s2.mathematik.uni-karlsruhe.de>
+ *
+ * Yves Arrouye      :  remove removal of trailing spaces in get_array.
+ *			<Yves.Arrouye@marin.fdn.fr>
+ *
+ * Jerome Forissier  :  added per-CPU time information to /proc/stat
+ *                      and /proc/<pid>/cpu extension
+ *                      <forissier@isia.cma.fr>
+ *			- Incorporation and non-SMP safe operation
+ *			of forissier patch in 2.1.78 by
+ *			Hans Marcus <crowbar@concepts.nl>
+ *
+ * aeb@cwi.nl        :  /proc/partitions
+ *
+ *
+ * Alan Cox	     :  security fixes.
+ *			<Alan.Cox@linux.org>
+ *
+ * Al Viro           :  safe handling of mm_struct
+ *
+ * Gerhard Wichert   :  added BIGMEM support
+ * Siemens AG           <Gerhard.Wichert@pdb.siemens.de>
+ *
+ * Al Viro & Jeff Garzik :  moved most of the thing into base.c and
+ *			 :  proc_misc.c. The rest may eventually go into
+ *			 :  base.c too.
+ */
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/kernel_stat.h>
+#include <linux/tty.h>
+#include <linux/string.h>
+#include <linux/mman.h>
+#include <linux/proc_fs.h>
+#include <linux/ioport.h>
+#include <linux/mm.h>
+#include <linux/pagemap.h>
+#include <linux/swap.h>
+#include <linux/slab.h>
+#include <linux/smp.h>
+#include <linux/signal.h>
+#include <linux/highmem.h>
+#include <linux/seq_file.h>
+
+#include <asm/uaccess.h>
+#include <asm/pgtable.h>
+#include <asm/io.h>
+#include <asm/processor.h>
+
+/* Gcc optimizes away "strlen(x)" for constant x */
+#define ADDBUF(buffer, string) \
+do { memcpy(buffer, string, strlen(string)); \
+     buffer += strlen(string); } while (0)
+
+static inline char * task_name(struct task_struct *p, char * buf)
+{
+	int i;
+	char * name;
+	char tcomm[sizeof(p->comm)];
+
+	get_task_comm(tcomm, p);
+
+	ADDBUF(buf, "Name:\t");
+	name = tcomm;
+	i = sizeof(tcomm);
+	do {
+		unsigned char c = *name;
+		name++;
+		i--;
+		*buf = c;
+		if (!c)
+			break;
+		if (c == '\\') {
+			buf[1] = c;
+			buf += 2;
+			continue;
+		}
+		if (c == '\n') {
+			buf[0] = '\\';
+			buf[1] = 'n';
+			buf += 2;
+			continue;
+		}
+		buf++;
+	} while (i);
+	*buf = '\n';
+	return buf+1;
+}
+
+/*
+ * The task state array is a strange "bitmap" of
+ * reasons to sleep. Thus "running" is zero, and
+ * you can test for combinations of others with
+ * simple bit tests.
+ */
+static const char *task_state_array[] = {
+	"R (running)",		/*  0 */
+	"S (sleeping)",		/*  1 */
+	"D (disk sleep)",	/*  2 */
+	"Z (zombie)",		/*  4 */
+	"T (stopped)",		/*  8 */
+	"W (paging)"		/* 16 */
+};
+
+static inline const char * get_task_state(struct task_struct *tsk)
+{
+	unsigned int state = tsk->state & (TASK_RUNNING |
+					   TASK_INTERRUPTIBLE |
+					   TASK_UNINTERRUPTIBLE |
+					   TASK_ZOMBIE |
+					   TASK_STOPPED);
+	const char **p = &task_state_array[0];
+
+	while (state) {
+		p++;
+		state >>= 1;
+	}
+	return *p;
+}
+
+static inline char * task_state(struct task_struct *p, char *buffer)
+{
+	int g;
+
+	read_lock(&tasklist_lock);
+	buffer += sprintf(buffer,
+		"State:\t%s\n"
+		"Tgid:\t%d\n"
+		"Pid:\t%d\n"
+		"PPid:\t%d\n"
+		"TracerPid:\t%d\n"
+		"Uid:\t%d\t%d\t%d\t%d\n"
+		"Gid:\t%d\t%d\t%d\t%d\n",
+		get_task_state(p), p->tgid,
+		p->pid, p->pid ? p->p_opptr->pid : 0, 0,
+		p->uid, p->euid, p->suid, p->fsuid,
+		p->gid, p->egid, p->sgid, p->fsgid);
+	read_unlock(&tasklist_lock);	
+	task_lock(p);
+	buffer += sprintf(buffer,
+		"FDSize:\t%d\n"
+		"Groups:\t",
+		p->files ? p->files->max_fds : 0);
+	task_unlock(p);
+
+	for (g = 0; g < p->ngroups; g++)
+		buffer += sprintf(buffer, "%d ", p->groups[g]);
+
+	buffer += sprintf(buffer, "\n");
+	return buffer;
+}
+
+static inline char * task_mem(struct mm_struct *mm, char *buffer)
+{
+	struct vm_area_struct * vma;
+	unsigned long data = 0, stack = 0;
+	unsigned long exec = 0, lib = 0;
+
+	down_read(&mm->mmap_sem);
+	for (vma = mm->mmap; vma; vma = vma->vm_next) {
+		unsigned long len = (vma->vm_end - vma->vm_start) >> 10;
+		if (!vma->vm_file) {
+			data += len;
+			if (vma->vm_flags & VM_GROWSDOWN)
+				stack += len;
+			continue;
+		}
+		if (vma->vm_flags & VM_WRITE)
+			continue;
+		if (vma->vm_flags & VM_EXEC) {
+			exec += len;
+			if (vma->vm_flags & VM_EXECUTABLE)
+				continue;
+			lib += len;
+		}
+	}
+	buffer += sprintf(buffer,
+		"VmSize:\t%8lu kB\n"
+		"VmLck:\t%8lu kB\n"
+		"VmRSS:\t%8lu kB\n"
+		"VmData:\t%8lu kB\n"
+		"VmStk:\t%8lu kB\n"
+		"VmExe:\t%8lu kB\n"
+		"VmLib:\t%8lu kB\n",
+		mm->total_vm << (PAGE_SHIFT-10),
+		mm->locked_vm << (PAGE_SHIFT-10),
+		mm->rss << (PAGE_SHIFT-10),
+		data - stack, stack,
+		exec - lib, lib);
+	up_read(&mm->mmap_sem);
+	return buffer;
+}
+
+static void collect_sigign_sigcatch(struct task_struct *p, sigset_t *ign,
+				    sigset_t *catch)
+{
+	struct k_sigaction *k;
+	int i;
+
+	sigemptyset(ign);
+	sigemptyset(catch);
+
+	spin_lock_irq(&p->sigmask_lock);
+
+	if (p->sig) {
+		k = p->sig->action;
+		for (i = 1; i <= _NSIG; ++i, ++k) {
+			if (k->sa.sa_handler == SIG_IGN)
+				sigaddset(ign, i);
+			else if (k->sa.sa_handler != SIG_DFL)
+				sigaddset(catch, i);
+		}
+	}
+	spin_unlock_irq(&p->sigmask_lock);
+}
+
+static inline char * task_sig(struct task_struct *p, char *buffer)
+{
+	sigset_t ign, catch;
+
+	buffer += sprintf(buffer, "SigPnd:\t");
+	buffer = render_sigset_t(&p->pending.signal, buffer);
+	*buffer++ = '\n';
+	buffer += sprintf(buffer, "SigBlk:\t");
+	buffer = render_sigset_t(&p->blocked, buffer);
+	*buffer++ = '\n';
+
+	collect_sigign_sigcatch(p, &ign, &catch);
+	buffer += sprintf(buffer, "SigIgn:\t");
+	buffer = render_sigset_t(&ign, buffer);
+	*buffer++ = '\n';
+	buffer += sprintf(buffer, "SigCgt:\t"); /* Linux 2.0 uses "SigCgt" */
+	buffer = render_sigset_t(&catch, buffer);
+	*buffer++ = '\n';
+
+	return buffer;
+}
+
+static inline char *task_cap(struct task_struct *p, char *buffer)
+{
+    return buffer + sprintf(buffer, "CapInh:\t%016x\n"
+			    "CapPrm:\t%016x\n"
+			    "CapEff:\t%016x\n",
+			    cap_t(p->cap_inheritable),
+			    cap_t(p->cap_permitted),
+			    cap_t(p->cap_effective));
+}
+
+
+int proc_pid_status(struct task_struct *task, char * buffer)
+{
+	char * orig = buffer;
+	struct mm_struct *mm;
+
+	buffer = task_name(task, buffer);
+	buffer = task_state(task, buffer);
+	task_lock(task);
+	mm = task->mm;
+	if(mm)
+		atomic_inc(&mm->mm_users);
+	task_unlock(task);
+	if (mm) {
+		buffer = task_mem(mm, buffer);
+		mmput(mm);
+	}
+	buffer = task_sig(task, buffer);
+	buffer = task_cap(task, buffer);
+#if defined(CONFIG_ARCH_S390)
+	buffer = task_show_regs(task, buffer);
+#endif
+	return buffer - orig;
+}
+
+int proc_pid_stat(struct task_struct *task, char * buffer)
+{
+	unsigned long vsize, eip, esp, wchan;
+	long priority, nice;
+	int tty_pgrp = -1, tty_nr = 0;
+	sigset_t sigign, sigcatch;
+	char state;
+	int res;
+	pid_t ppid;
+	struct mm_struct *mm;
+	char tcomm[sizeof(task->comm)];
+
+	state = *get_task_state(task);
+	vsize = eip = esp = 0;
+	task_lock(task);
+	mm = task->mm;
+	if(mm)
+		atomic_inc(&mm->mm_users);
+	if (task->tty) {
+		tty_pgrp = task->tty->pgrp;
+		tty_nr = kdev_t_to_nr(task->tty->device);
+	}
+	task_unlock(task);
+	if (mm) {
+		struct vm_area_struct *vma;
+		down_read(&mm->mmap_sem);
+		vma = mm->mmap;
+		while (vma) {
+			vsize += vma->vm_end - vma->vm_start;
+			vma = vma->vm_next;
+		}
+		eip = KSTK_EIP(task);
+		esp = KSTK_ESP(task);
+		up_read(&mm->mmap_sem);
+	}
+
+	get_task_comm(tcomm, task);
+
+	wchan = get_wchan(task);
+
+	collect_sigign_sigcatch(task, &sigign, &sigcatch);
+
+	/* scale priority and nice values from timeslices to -20..20 */
+	/* to make it look like a "normal" Unix priority/nice value  */
+	priority = task->counter;
+	priority = 20 - (priority * 10 + DEF_COUNTER / 2) / DEF_COUNTER;
+	nice = task->nice;
+
+	read_lock(&tasklist_lock);
+	ppid = task->pid ? task->p_opptr->pid : 0;
+	read_unlock(&tasklist_lock);
+	res = sprintf(buffer,"%d (%s) %c %d %d %d %d %d %lu %lu \
+%lu %lu %lu %lu %lu %ld %ld %ld %ld %ld %ld %lu %lu %ld %lu %lu %lu %lu %lu \
+%lu %lu %lu %lu %lu %lu %lu %lu %d %d\n",
+		task->pid,
+		tcomm,
+		state,
+		ppid,
+		task->pgrp,
+		task->session,
+	        tty_nr,
+		tty_pgrp,
+		task->flags,
+		task->min_flt,
+		task->cmin_flt,
+		task->maj_flt,
+		task->cmaj_flt,
+		task->times.tms_utime,
+		task->times.tms_stime,
+		task->times.tms_cutime,
+		task->times.tms_cstime,
+		priority,
+		nice,
+		0UL /* removed */,
+		task->it_real_value,
+		task->start_time,
+		vsize,
+		mm ? mm->rss : 0, /* you might want to shift this left 3 */
+		task->rlim[RLIMIT_RSS].rlim_cur,
+		mm ? mm->start_code : 0,
+		mm ? mm->end_code : 0,
+		mm ? mm->start_stack : 0,
+		esp,
+		eip,
+		/* The signal information here is obsolete.
+		 * It must be decimal for Linux 2.0 compatibility.
+		 * Use /proc/#/status for real-time signals.
+		 */
+		task->pending.signal.sig[0] & 0x7fffffffUL,
+		task->blocked.sig[0] & 0x7fffffffUL,
+		sigign      .sig[0] & 0x7fffffffUL,
+		sigcatch    .sig[0] & 0x7fffffffUL,
+		wchan,
+		task->nswap,
+		task->cnswap,
+		task->exit_signal,
+		task->processor);
+	if(mm)
+		mmput(mm);
+	return res;
+}
+		
+static inline void statm_pte_range(pmd_t * pmd, unsigned long address, unsigned long size,
+	int * pages, int * shared, int * dirty, int * total)
+{
+	pte_t * pte;
+	unsigned long end;
+
+	if (pmd_none(*pmd))
+		return;
+	if (pmd_bad(*pmd)) {
+		pmd_ERROR(*pmd);
+		pmd_clear(pmd);
+		return;
+	}
+	pte = pte_offset(pmd, address);
+	address &= ~PMD_MASK;
+	end = address + size;
+	if (end > PMD_SIZE)
+		end = PMD_SIZE;
+	do {
+		pte_t page = *pte;
+		struct page *ptpage;
+
+		address += PAGE_SIZE;
+		pte++;
+		if (pte_none(page))
+			continue;
+		++*total;
+		if (!pte_present(page))
+			continue;
+		ptpage = pte_page(page);
+		if ((!VALID_PAGE(ptpage)) || PageReserved(ptpage))
+			continue;
+		++*pages;
+		if (pte_dirty(page))
+			++*dirty;
+		if (page_count(pte_page(page)) > 1)
+			++*shared;
+	} while (address < end);
+}
+
+static inline void statm_pmd_range(pgd_t * pgd, unsigned long address, unsigned long size,
+	int * pages, int * shared, int * dirty, int * total)
+{
+	pmd_t * pmd;
+	unsigned long end;
+
+	if (pgd_none(*pgd))
+		return;
+	if (pgd_bad(*pgd)) {
+		pgd_ERROR(*pgd);
+		pgd_clear(pgd);
+		return;
+	}
+	pmd = pmd_offset(pgd, address);
+	address &= ~PGDIR_MASK;
+	end = address + size;
+	if (end > PGDIR_SIZE)
+		end = PGDIR_SIZE;
+	do {
+		statm_pte_range(pmd, address, end - address, pages, shared, dirty, total);
+		address = (address + PMD_SIZE) & PMD_MASK;
+		pmd++;
+	} while (address < end);
+}
+
+static void statm_pgd_range(pgd_t * pgd, unsigned long address, unsigned long end,
+	int * pages, int * shared, int * dirty, int * total)
+{
+	while (address < end) {
+		statm_pmd_range(pgd, address, end - address, pages, shared, dirty, total);
+		address = (address + PGDIR_SIZE) & PGDIR_MASK;
+		pgd++;
+	}
+}
+
+int proc_pid_statm(struct task_struct *task, char * buffer)
+{
+	struct mm_struct *mm;
+	int size=0, resident=0, share=0, trs=0, lrs=0, drs=0, dt=0;
+
+	task_lock(task);
+	mm = task->mm;
+	if(mm)
+		atomic_inc(&mm->mm_users);
+	task_unlock(task);
+	if (mm) {
+		struct vm_area_struct * vma;
+		down_read(&mm->mmap_sem);
+		vma = mm->mmap;
+		while (vma) {
+			pgd_t *pgd = pgd_offset(mm, vma->vm_start);
+			int pages = 0, shared = 0, dirty = 0, total = 0;
+
+			statm_pgd_range(pgd, vma->vm_start, vma->vm_end, &pages, &shared, &dirty, &total);
+			resident += pages;
+			share += shared;
+			dt += dirty;
+			size += total;
+			if (vma->vm_flags & VM_EXECUTABLE)
+				trs += pages;	/* text */
+			else if (vma->vm_flags & VM_GROWSDOWN)
+				drs += pages;	/* stack */
+			else if (vma->vm_end > 0x60000000)
+				lrs += pages;	/* library */
+			else
+				drs += pages;
+			vma = vma->vm_next;
+		}
+		up_read(&mm->mmap_sem);
+		mmput(mm);
+	}
+	return sprintf(buffer,"%d %d %d %d %d %d %d\n",
+		       size, resident, share, trs, lrs, drs, dt);
+}
+
+static int show_map(struct seq_file *m, void *v)
+{
+	struct vm_area_struct *map = v;
+	struct file *file = map->vm_file;
+	int flags = map->vm_flags;
+	unsigned long ino = 0;
+	dev_t dev = 0;
+	int len;
+
+	if (file) {
+		struct inode *inode = map->vm_file->f_dentry->d_inode;
+		dev = kdev_t_to_nr(inode->i_sb->s_dev);
+		ino = inode->i_ino;
+	}
+
+	seq_printf(m, "%08lx-%08lx %c%c%c%c %08lx %02x:%02x %lu %n",
+			map->vm_start,
+			map->vm_end,
+			flags & VM_READ ? 'r' : '-',
+			flags & VM_WRITE ? 'w' : '-',
+			flags & VM_EXEC ? 'x' : '-',
+			flags & VM_MAYSHARE ? 's' : 'p',
+			map->vm_pgoff << PAGE_SHIFT,
+			MAJOR(dev), MINOR(dev), ino, &len);
+
+	if (map->vm_file) {
+		len = 25 + sizeof(void*) * 6 - len;
+		if (len < 1)
+			len = 1;
+		seq_printf(m, "%*c", len, ' ');
+		seq_path(m, file->f_vfsmnt, file->f_dentry, "");
+	}
+	seq_putc(m, '\n');
+	return 0;
+}
+
+static void *m_start(struct seq_file *m, loff_t *pos)
+{
+	struct task_struct *task = m->private;
+	struct mm_struct *mm;
+	struct vm_area_struct * map;
+	loff_t l = *pos;
+
+	task_lock(task);
+	mm = task->mm;
+	if (mm)
+		atomic_inc(&mm->mm_users);
+	task_unlock(task);
+
+	if (!mm)
+		return NULL;
+
+	down_read(&mm->mmap_sem);
+	map = mm->mmap;
+	while (l-- && map)
+		map = map->vm_next;
+	if (!map) {
+		up_read(&mm->mmap_sem);
+		mmput(mm);
+	}
+	return map;
+}
+
+static void m_stop(struct seq_file *m, void *v)
+{
+	struct vm_area_struct *map = v;
+	if (map) {
+		struct mm_struct *mm = map->vm_mm;
+		up_read(&mm->mmap_sem);
+		mmput(mm);
+	}
+}
+
+static void *m_next(struct seq_file *m, void *v, loff_t *pos)
+{
+	struct vm_area_struct *map = v;
+	(*pos)++;
+	if (map->vm_next)
+		return map->vm_next;
+	m_stop(m, v);
+	return NULL;
+}
+
+struct seq_operations proc_pid_maps_op = {
+	.start	= m_start,
+	.next	= m_next,
+	.stop	= m_stop,
+	.show	= show_map
+};
+
+#ifdef CONFIG_SMP
+int proc_pid_cpu(struct task_struct *task, char * buffer)
+{
+	int i, len;
+
+	len = sprintf(buffer,
+		"cpu  %lu %lu\n",
+		task->times.tms_utime,
+		task->times.tms_stime);
+		
+	for (i = 0 ; i < smp_num_cpus; i++)
+		len += sprintf(buffer + len, "cpu%d %lu %lu\n",
+			i,
+			task->per_cpu_utime[cpu_logical_map(i)],
+			task->per_cpu_stime[cpu_logical_map(i)]);
+
+	return len;
+}
+#endif
diff --git a/fs/proc/base.c b/fs/proc/base.c
new file mode 100644
index 00000000000000..95fba3f8584bd8
--- /dev/null
+++ b/fs/proc/base.c
@@ -0,0 +1,1169 @@
+/*
+ *  linux/fs/proc/base.c
+ *
+ *  Copyright (C) 1991, 1992 Linus Torvalds
+ *
+ *  proc base directory handling functions
+ *
+ *  1999, Al Viro. Rewritten. Now it covers the whole per-process part.
+ *  Instead of using magical inumbers to determine the kind of object
+ *  we allocate and fill in-core inodes upon lookup. They don't even
+ *  go into icache. We cache the reference to task_struct upon lookup too.
+ *  Eventually it should become a filesystem in its own. We don't use the
+ *  rest of procfs anymore.
+ */
+
+#include <asm/uaccess.h>
+
+#include <linux/config.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/proc_fs.h>
+#include <linux/stat.h>
+#include <linux/init.h>
+#include <linux/file.h>
+#include <linux/string.h>
+#include <linux/seq_file.h>
+#include <linux/namespace.h>
+
+/*
+ * For hysterical raisins we keep the same inumbers as in the old procfs.
+ * Feel free to change the macro below - just keep the range distinct from
+ * inumbers of the rest of procfs (currently those are in 0x0000--0xffff).
+ * As soon as we'll get a separate superblock we will be able to forget
+ * about magical ranges too.
+ */
+
+#define fake_ino(pid,ino) (((pid)<<16)|(ino))
+
+int proc_pid_stat(struct task_struct*,char*);
+int proc_pid_status(struct task_struct*,char*);
+int proc_pid_statm(struct task_struct*,char*);
+int proc_pid_cpu(struct task_struct*,char*);
+
+static int proc_fd_link(struct inode *inode, struct dentry **dentry, struct vfsmount **mnt)
+{
+	if (inode->u.proc_i.file) {
+		*mnt = mntget(inode->u.proc_i.file->f_vfsmnt);
+		*dentry = dget(inode->u.proc_i.file->f_dentry);
+		return 0;
+	}
+	return -ENOENT;
+}
+
+static int proc_exe_link(struct inode *inode, struct dentry **dentry, struct vfsmount **mnt)
+{
+	struct mm_struct * mm;
+	struct vm_area_struct * vma;
+	int result = -ENOENT;
+	struct task_struct *task = inode->u.proc_i.task;
+
+	task_lock(task);
+	mm = task->mm;
+	if (mm)
+		atomic_inc(&mm->mm_users);
+	task_unlock(task);
+	if (!mm)
+		goto out;
+	down_read(&mm->mmap_sem);
+	vma = mm->mmap;
+	while (vma) {
+		if ((vma->vm_flags & VM_EXECUTABLE) && 
+		    vma->vm_file) {
+			*mnt = mntget(vma->vm_file->f_vfsmnt);
+			*dentry = dget(vma->vm_file->f_dentry);
+			result = 0;
+			break;
+		}
+		vma = vma->vm_next;
+	}
+	up_read(&mm->mmap_sem);
+	mmput(mm);
+out:
+	return result;
+}
+
+static int proc_cwd_link(struct inode *inode, struct dentry **dentry, struct vfsmount **mnt)
+{
+	struct fs_struct *fs;
+	int result = -ENOENT;
+	task_lock(inode->u.proc_i.task);
+	fs = inode->u.proc_i.task->fs;
+	if(fs)
+		atomic_inc(&fs->count);
+	task_unlock(inode->u.proc_i.task);
+	if (fs) {
+		read_lock(&fs->lock);
+		*mnt = mntget(fs->pwdmnt);
+		*dentry = dget(fs->pwd);
+		read_unlock(&fs->lock);
+		result = 0;
+		put_fs_struct(fs);
+	}
+	return result;
+}
+
+static int proc_root_link(struct inode *inode, struct dentry **dentry, struct vfsmount **mnt)
+{
+	struct fs_struct *fs;
+	int result = -ENOENT;
+	task_lock(inode->u.proc_i.task);
+	fs = inode->u.proc_i.task->fs;
+	if(fs)
+		atomic_inc(&fs->count);
+	task_unlock(inode->u.proc_i.task);
+	if (fs) {
+		read_lock(&fs->lock);
+		*mnt = mntget(fs->rootmnt);
+		*dentry = dget(fs->root);
+		read_unlock(&fs->lock);
+		result = 0;
+		put_fs_struct(fs);
+	}
+	return result;
+}
+
+#define MAY_PTRACE(task) \
+	(task == current || \
+	(task->p_pptr == current && \
+	(task->ptrace & PT_PTRACED) && task->state == TASK_STOPPED))
+
+static int may_ptrace_attach(struct task_struct *task)
+{
+	int retval = 0;
+
+	task_lock(task);
+
+	if (((current->uid != task->euid) ||
+	    (current->uid != task->suid) ||
+	    (current->uid != task->uid) ||
+	    (current->gid != task->egid) ||
+	    (current->gid != task->sgid) ||
+	    (!cap_issubset(task->cap_permitted, current->cap_permitted)) ||
+	    (current->gid != task->gid)) && !capable(CAP_SYS_PTRACE))
+		goto out;
+	rmb();
+	if (!is_dumpable(task) && !capable(CAP_SYS_PTRACE))
+		goto out;
+
+	retval = 1;
+
+out:
+	task_unlock(task);
+	return retval;
+}
+
+static int proc_pid_environ(struct task_struct *task, char * buffer)
+{
+	struct mm_struct *mm;
+	int res = 0;
+
+	if (!may_ptrace_attach(task))
+		return -ESRCH;
+
+	task_lock(task);
+	mm = task->mm;
+	if (mm)
+		atomic_inc(&mm->mm_users);
+	task_unlock(task);
+	if (mm && mm->env_start && mm->env_start < mm->env_end) {
+		unsigned long len = mm->env_end - mm->env_start;
+		if (len > PAGE_SIZE)
+			len = PAGE_SIZE;
+		res = access_process_vm(task, mm->env_start, buffer, len, 0);
+		if (res >= 0 && !may_ptrace_attach(task))
+			res = -ESRCH;
+	}
+	if (mm)
+		mmput(mm);
+	return res;
+}
+
+static int proc_pid_cmdline(struct task_struct *task, char * buffer)
+{
+	struct mm_struct *mm;
+	int res = 0;
+	task_lock(task);
+	mm = task->mm;
+	if (mm)
+		atomic_inc(&mm->mm_users);
+	task_unlock(task);
+	if (mm && mm->arg_start && mm->arg_start < mm->arg_end) {
+		unsigned long len = mm->arg_end - mm->arg_start;
+		if (len > PAGE_SIZE)
+			len = PAGE_SIZE;
+		res = access_process_vm(task, mm->arg_start, buffer, len, 0);
+		/* If the nul at the end of args has been overwritten, then
+		   assume application is using setproctitle(3). */
+		if (res > 0 && buffer[res - 1] != '\0') {
+			len = strnlen(buffer, res);
+			if (len < res) {
+				res = len;
+			} else
+			if (mm->env_start < mm->env_end && res <= PAGE_SIZE) {
+				len = mm->env_end - mm->env_start;
+				if (len > PAGE_SIZE - res)
+					len = PAGE_SIZE - res;
+				res += access_process_vm(task, mm->env_start, buffer+res, len, 0);
+				res = strnlen(buffer, res);
+			} else
+				res = 0;
+		}
+	}
+	if (mm)
+		mmput(mm);
+	return res;
+}
+
+/************************************************************************/
+/*                       Here the fs part begins                        */
+/************************************************************************/
+
+/* permission checks */
+
+static int proc_check_root(struct inode *inode)
+{
+	struct dentry *de, *base, *root;
+	struct vfsmount *our_vfsmnt, *vfsmnt, *mnt;
+	int res = 0;
+
+	if (proc_root_link(inode, &root, &vfsmnt)) /* Ewww... */
+		return -ENOENT;
+	read_lock(&current->fs->lock);
+	our_vfsmnt = mntget(current->fs->rootmnt);
+	base = dget(current->fs->root);
+	read_unlock(&current->fs->lock);
+
+	spin_lock(&dcache_lock);
+	de = root;
+	mnt = vfsmnt;
+
+	while (vfsmnt != our_vfsmnt) {
+		if (vfsmnt == vfsmnt->mnt_parent)
+			goto out;
+		de = vfsmnt->mnt_mountpoint;
+		vfsmnt = vfsmnt->mnt_parent;
+	}
+
+	if (!is_subdir(de, base))
+		goto out;
+	spin_unlock(&dcache_lock);
+
+exit:
+	dput(base);
+	mntput(our_vfsmnt);
+	dput(root);
+	mntput(mnt);
+	return res;
+out:
+	spin_unlock(&dcache_lock);
+	res = -EACCES;
+	goto exit;
+}
+
+static int proc_permission(struct inode *inode, int mask)
+{
+	if (vfs_permission(inode, mask) != 0)
+		return -EACCES;
+	return proc_check_root(inode);
+}
+
+extern struct seq_operations proc_pid_maps_op;
+static int maps_open(struct inode *inode, struct file *file)
+{
+	struct task_struct *task = inode->u.proc_i.task;
+	int ret = seq_open(file, &proc_pid_maps_op);
+	if (!ret) {
+		struct seq_file *m = file->private_data;
+		m->private = task;
+	}
+	return ret;
+}
+
+static struct file_operations proc_maps_operations = {
+	.open		= maps_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= seq_release,
+};
+
+extern struct seq_operations mounts_op;
+static int mounts_open(struct inode *inode, struct file *file)
+{
+	struct task_struct *task = inode->u.proc_i.task;
+	int ret = seq_open(file, &mounts_op);
+
+	if (!ret) {
+		struct seq_file *m = file->private_data;
+		struct namespace *namespace;
+		task_lock(task);
+		namespace = task->namespace;
+		if (namespace)
+			get_namespace(namespace);
+		task_unlock(task);
+
+		if (namespace)
+			m->private = namespace;
+		else {
+			seq_release(inode, file);
+			ret = -EINVAL;
+		}
+	}
+	return ret;
+}
+
+static int mounts_release(struct inode *inode, struct file *file)
+{
+	struct seq_file *m = file->private_data;
+	struct namespace *namespace = m->private;
+	put_namespace(namespace);
+	return seq_release(inode, file);
+}
+
+static struct file_operations proc_mounts_operations = {
+	open:		mounts_open,
+	read:		seq_read,
+	llseek:		seq_lseek,
+	release:	mounts_release,
+};
+
+#define PROC_BLOCK_SIZE	(3*1024)		/* 4K page size but our output routines use some slack for overruns */
+
+static ssize_t proc_info_read(struct file * file, char * buf,
+			  size_t count, loff_t *ppos)
+{
+	struct inode * inode = file->f_dentry->d_inode;
+	unsigned long page;
+	ssize_t length;
+	ssize_t end;
+	struct task_struct *task = inode->u.proc_i.task;
+	loff_t pos = *ppos;
+
+	if (count > PROC_BLOCK_SIZE)
+		count = PROC_BLOCK_SIZE;
+	if (!(page = __get_free_page(GFP_KERNEL)))
+		return -ENOMEM;
+
+	length = inode->u.proc_i.op.proc_read(task, (char*)page);
+
+	if (length < 0) {
+		free_page(page);
+		return length;
+	}
+	/* Static 4kB (or whatever) block capacity */
+	if (pos < 0 || pos >= length) {
+		free_page(page);
+		return 0;
+	}
+	if (count > length - pos)
+		count = length - pos;
+	end = count + pos;
+	copy_to_user(buf, (char *) page + pos, count);
+	*ppos = end;
+	free_page(page);
+	return count;
+}
+
+static struct file_operations proc_info_file_operations = {
+	read:		proc_info_read,
+};
+
+static int mem_open(struct inode* inode, struct file* file)
+{
+	file->private_data = (void*)((long)current->self_exec_id);
+	return 0;
+}
+
+static ssize_t mem_read(struct file * file, char * buf,
+			size_t count, loff_t *ppos)
+{
+	struct task_struct *task = file->f_dentry->d_inode->u.proc_i.task;
+	char *page;
+	unsigned long src = *ppos;
+	int copied = 0;
+	struct mm_struct *mm;
+
+	if (!MAY_PTRACE(task) || !may_ptrace_attach(task))
+		return -ESRCH;
+
+	page = (char *)__get_free_page(GFP_USER);
+	if (!page)
+		return -ENOMEM;
+
+	task_lock(task);
+	mm = task->mm;
+	if (mm)
+		atomic_inc(&mm->mm_users);
+	task_unlock(task);
+	if (!mm){
+		copied = 0;
+		goto out_free;
+	}
+
+	if (file->private_data != (void*)((long)current->self_exec_id) ) {
+		mmput(mm);
+		copied = -EIO;
+		goto out_free;
+	}
+
+	while (count > 0) {
+		int this_len, retval;
+
+		this_len = (count > PAGE_SIZE) ? PAGE_SIZE : count;
+		retval = access_process_vm(task, src, page, this_len, 0);
+		if (!retval || !MAY_PTRACE(task) || !may_ptrace_attach(task)) {
+			if (!copied)
+				copied = -EIO;
+			break;
+		}
+		if (copy_to_user(buf, page, retval)) {
+			copied = -EFAULT;
+			break;
+		}
+		copied += retval;
+		src += retval;
+		buf += retval;
+		count -= retval;
+	}
+	*ppos = src;
+	mmput(mm);
+
+out_free:
+	free_page((unsigned long) page);
+	return copied;
+}
+
+#define mem_write NULL
+
+#ifndef mem_write
+/* This is a security hazard */
+static ssize_t mem_write(struct file * file, const char * buf,
+			 size_t count, loff_t *ppos)
+{
+	int copied = 0;
+	char *page;
+	struct task_struct *task = file->f_dentry->d_inode->u.proc_i.task;
+	unsigned long dst = *ppos;
+
+	if (!MAY_PTRACE(task) || !may_ptrace_attach(task))
+		return -ESRCH;
+
+	page = (char *)__get_free_page(GFP_USER);
+	if (!page)
+		return -ENOMEM;
+
+	while (count > 0) {
+		int this_len, retval;
+
+		this_len = (count > PAGE_SIZE) ? PAGE_SIZE : count;
+		if (copy_from_user(page, buf, this_len)) {
+			copied = -EFAULT;
+			break;
+		}
+		retval = access_process_vm(task, dst, page, this_len, 1);
+		if (!retval) {
+			if (!copied)
+				copied = -EIO;
+			break;
+		}
+		copied += retval;
+		buf += retval;
+		dst += retval;
+		count -= retval;			
+	}
+	*ppos = dst;
+	free_page((unsigned long) page);
+	return copied;
+}
+#endif
+
+static loff_t mem_lseek(struct file * file, loff_t offset, int orig)
+{
+	switch (orig) {
+	case 0:
+		file->f_pos = offset;
+		break;
+	case 1:
+		file->f_pos += offset;
+		break;
+	default:
+		return -EINVAL;
+	}
+	force_successful_syscall_return();
+	return file->f_pos;
+}
+
+static struct file_operations proc_mem_operations = {
+	llseek:		mem_lseek,
+	read:		mem_read,
+	write:		mem_write,
+	open:		mem_open,
+};
+
+static struct inode_operations proc_mem_inode_operations = {
+	permission:	proc_permission,
+};
+
+static int proc_pid_follow_link(struct dentry *dentry, struct nameidata *nd)
+{
+	struct inode *inode = dentry->d_inode;
+	int error = -EACCES;
+
+	/* We don't need a base pointer in the /proc filesystem */
+	path_release(nd);
+
+	if (current->fsuid != inode->i_uid && !capable(CAP_DAC_OVERRIDE))
+		goto out;
+	error = proc_check_root(inode);
+	if (error)
+		goto out;
+
+	error = inode->u.proc_i.op.proc_get_link(inode, &nd->dentry, &nd->mnt);
+	nd->last_type = LAST_BIND;
+out:
+	return error;
+}
+
+static int do_proc_readlink(struct dentry *dentry, struct vfsmount *mnt,
+			    char * buffer, int buflen)
+{
+	struct inode * inode;
+	char * tmp = (char*)__get_free_page(GFP_KERNEL), *path;
+	int len;
+
+	if (!tmp)
+		return -ENOMEM;
+		
+	inode = dentry->d_inode;
+	path = d_path(dentry, mnt, tmp, PAGE_SIZE);
+	if (IS_ERR(path)) {
+		free_page((unsigned long)tmp);
+		return PTR_ERR(path);
+	}
+	len = tmp + PAGE_SIZE - 1 - path;
+
+	if (len < buflen)
+		buflen = len;
+	copy_to_user(buffer, path, buflen);
+	free_page((unsigned long)tmp);
+	return buflen;
+}
+
+static int proc_pid_readlink(struct dentry * dentry, char * buffer, int buflen)
+{
+	int error = -EACCES;
+	struct inode *inode = dentry->d_inode;
+	struct dentry *de;
+	struct vfsmount *mnt = NULL;
+
+	if (current->fsuid != inode->i_uid && !capable(CAP_DAC_OVERRIDE))
+		goto out;
+	error = proc_check_root(inode);
+	if (error)
+		goto out;
+
+	error = inode->u.proc_i.op.proc_get_link(inode, &de, &mnt);
+	if (error)
+		goto out;
+
+	error = do_proc_readlink(de, mnt, buffer, buflen);
+	dput(de);
+	mntput(mnt);
+out:
+	return error;
+}
+
+static struct inode_operations proc_pid_link_inode_operations = {
+	readlink:	proc_pid_readlink,
+	follow_link:	proc_pid_follow_link
+};
+
+struct pid_entry {
+	int type;
+	int len;
+	char *name;
+	mode_t mode;
+};
+
+enum pid_directory_inos {
+	PROC_PID_INO = 2,
+	PROC_PID_STATUS,
+	PROC_PID_MEM,
+	PROC_PID_CWD,
+	PROC_PID_ROOT,
+	PROC_PID_EXE,
+	PROC_PID_FD,
+	PROC_PID_ENVIRON,
+	PROC_PID_CMDLINE,
+	PROC_PID_STAT,
+	PROC_PID_STATM,
+	PROC_PID_MAPS,
+	PROC_PID_CPU,
+	PROC_PID_MOUNTS,
+	PROC_PID_FD_DIR = 0x8000,	/* 0x8000-0xffff */
+};
+
+#define E(type,name,mode) {(type),sizeof(name)-1,(name),(mode)}
+static struct pid_entry base_stuff[] = {
+  E(PROC_PID_FD,	"fd",		S_IFDIR|S_IRUSR|S_IXUSR),
+  E(PROC_PID_ENVIRON,	"environ",	S_IFREG|S_IRUSR),
+  E(PROC_PID_STATUS,	"status",	S_IFREG|S_IRUGO),
+  E(PROC_PID_CMDLINE,	"cmdline",	S_IFREG|S_IRUGO),
+  E(PROC_PID_STAT,	"stat",		S_IFREG|S_IRUGO),
+  E(PROC_PID_STATM,	"statm",	S_IFREG|S_IRUGO),
+#ifdef CONFIG_SMP
+  E(PROC_PID_CPU,	"cpu",		S_IFREG|S_IRUGO),
+#endif
+  E(PROC_PID_MAPS,	"maps",		S_IFREG|S_IRUGO),
+  E(PROC_PID_MEM,	"mem",		S_IFREG|S_IRUSR|S_IWUSR),
+  E(PROC_PID_CWD,	"cwd",		S_IFLNK|S_IRWXUGO),
+  E(PROC_PID_ROOT,	"root",		S_IFLNK|S_IRWXUGO),
+  E(PROC_PID_EXE,	"exe",		S_IFLNK|S_IRWXUGO),
+  E(PROC_PID_MOUNTS,	"mounts",	S_IFREG|S_IRUGO),
+  {0,0,NULL,0}
+};
+#undef E
+
+#define NUMBUF 10
+
+static int proc_readfd(struct file * filp, void * dirent, filldir_t filldir)
+{
+	struct inode *inode = filp->f_dentry->d_inode;
+	struct task_struct *p = inode->u.proc_i.task;
+	unsigned int fd, pid, ino;
+	int retval;
+	char buf[NUMBUF];
+	struct files_struct * files;
+
+	retval = 0;
+	pid = p->pid;
+
+	fd = filp->f_pos;
+	switch (fd) {
+		case 0:
+			if (filldir(dirent, ".", 1, 0, inode->i_ino, DT_DIR) < 0)
+				goto out;
+			filp->f_pos++;
+		case 1:
+			ino = fake_ino(pid, PROC_PID_INO);
+			if (filldir(dirent, "..", 2, 1, ino, DT_DIR) < 0)
+				goto out;
+			filp->f_pos++;
+		default:
+			task_lock(p);
+			files = p->files;
+			if (files)
+				atomic_inc(&files->count);
+			task_unlock(p);
+			if (!files)
+				goto out;
+			read_lock(&files->file_lock);
+			for (fd = filp->f_pos-2;
+			     fd < files->max_fds;
+			     fd++, filp->f_pos++) {
+				unsigned int i,j;
+
+				if (!fcheck_files(files, fd))
+					continue;
+				read_unlock(&files->file_lock);
+
+				j = NUMBUF;
+				i = fd;
+				do {
+					j--;
+					buf[j] = '0' + (i % 10);
+					i /= 10;
+				} while (i);
+
+				ino = fake_ino(pid, PROC_PID_FD_DIR + fd);
+				if (filldir(dirent, buf+j, NUMBUF-j, fd+2, ino, DT_LNK) < 0) {
+					read_lock(&files->file_lock);
+					break;
+				}
+				read_lock(&files->file_lock);
+			}
+			read_unlock(&files->file_lock);
+			put_files_struct(files);
+	}
+out:
+	return retval;
+}
+
+static int proc_base_readdir(struct file * filp,
+	void * dirent, filldir_t filldir)
+{
+	int i;
+	int pid;
+	struct inode *inode = filp->f_dentry->d_inode;
+	struct pid_entry *p;
+
+	pid = inode->u.proc_i.task->pid;
+	if (!pid)
+		return -ENOENT;
+	i = filp->f_pos;
+	switch (i) {
+		case 0:
+			if (filldir(dirent, ".", 1, i, inode->i_ino, DT_DIR) < 0)
+				return 0;
+			i++;
+			filp->f_pos++;
+			/* fall through */
+		case 1:
+			if (filldir(dirent, "..", 2, i, PROC_ROOT_INO, DT_DIR) < 0)
+				return 0;
+			i++;
+			filp->f_pos++;
+			/* fall through */
+		default:
+			i -= 2;
+			if (i>=sizeof(base_stuff)/sizeof(base_stuff[0]))
+				return 1;
+			p = base_stuff + i;
+			while (p->name) {
+				if (filldir(dirent, p->name, p->len, filp->f_pos,
+					    fake_ino(pid, p->type), p->mode >> 12) < 0)
+					return 0;
+				filp->f_pos++;
+				p++;
+			}
+	}
+	return 1;
+}
+
+/* building an inode */
+
+static int task_dumpable(struct task_struct *task)
+{
+	int dumpable = 0;
+	struct mm_struct *mm;
+
+	task_lock(task);
+	mm = task->mm;
+	if (mm)
+		dumpable = mm->dumpable;
+	task_unlock(task);
+	return dumpable;
+}
+
+
+static struct inode *proc_pid_make_inode(struct super_block * sb, struct task_struct *task, int ino)
+{
+	struct inode * inode;
+
+	/* We need a new inode */
+	
+	inode = new_inode(sb);
+	if (!inode)
+		goto out;
+
+	/* Common stuff */
+
+	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+	inode->i_ino = fake_ino(task->pid, ino);
+
+	if (!task->pid)
+		goto out_unlock;
+
+	/*
+	 * grab the reference to task.
+	 */
+	get_task_struct(task);
+	inode->u.proc_i.task = task;
+	inode->i_uid = 0;
+	inode->i_gid = 0;
+	if (ino == PROC_PID_INO || task_dumpable(task)) {
+		inode->i_uid = task->euid;
+		inode->i_gid = task->egid;
+	}
+
+out:
+	return inode;
+
+out_unlock:
+	inode->u.generic_ip = NULL;
+	iput(inode);
+	return NULL;
+}
+
+/* dentry stuff */
+
+static int pid_fd_revalidate(struct dentry * dentry, int flags)
+{
+	return 0;
+}
+
+/*
+ *	Exceptional case: normally we are not allowed to unhash a busy
+ * directory. In this case, however, we can do it - no aliasing problems
+ * due to the way we treat inodes.
+ */
+static int pid_base_revalidate(struct dentry * dentry, int flags)
+{
+	if (dentry->d_inode->u.proc_i.task->pid)
+		return 1;
+	d_drop(dentry);
+	return 0;
+}
+
+static int pid_delete_dentry(struct dentry * dentry)
+{
+	return 1;
+}
+
+static struct dentry_operations pid_fd_dentry_operations =
+{
+	d_revalidate:	pid_fd_revalidate,
+	d_delete:	pid_delete_dentry,
+};
+
+static struct dentry_operations pid_dentry_operations =
+{
+	d_delete:	pid_delete_dentry,
+};
+
+static struct dentry_operations pid_base_dentry_operations =
+{
+	d_revalidate:	pid_base_revalidate,
+	d_delete:	pid_delete_dentry,
+};
+
+/* Lookups */
+#define MAX_MULBY10	((~0U-9)/10)
+
+static struct dentry *proc_lookupfd(struct inode * dir, struct dentry * dentry)
+{
+	unsigned int fd, c;
+	struct task_struct *task = dir->u.proc_i.task;
+	struct file * file;
+	struct files_struct * files;
+	struct inode *inode;
+	const char *name;
+	int len;
+
+	fd = 0;
+	len = dentry->d_name.len;
+	name = dentry->d_name.name;
+	if (len > 1 && *name == '0') goto out;
+	while (len-- > 0) {
+		c = *name - '0';
+		name++;
+		if (c > 9)
+			goto out;
+		if (fd >= MAX_MULBY10)
+			goto out;
+		fd *= 10;
+		fd += c;
+	}
+
+	inode = proc_pid_make_inode(dir->i_sb, task, PROC_PID_FD_DIR+fd);
+	if (!inode)
+		goto out;
+	task_lock(task);
+	files = task->files;
+	if (files)
+		atomic_inc(&files->count);
+	task_unlock(task);
+	if (!files)
+		goto out_unlock;
+	read_lock(&files->file_lock);
+	file = inode->u.proc_i.file = fcheck_files(files, fd);
+	if (!file)
+		goto out_unlock2;
+	get_file(file);
+	read_unlock(&files->file_lock);
+	put_files_struct(files);
+	inode->i_op = &proc_pid_link_inode_operations;
+	inode->i_size = 64;
+	inode->i_mode = S_IFLNK;
+	inode->u.proc_i.op.proc_get_link = proc_fd_link;
+	if (file->f_mode & 1)
+		inode->i_mode |= S_IRUSR | S_IXUSR;
+	if (file->f_mode & 2)
+		inode->i_mode |= S_IWUSR | S_IXUSR;
+	dentry->d_op = &pid_fd_dentry_operations;
+	d_add(dentry, inode);
+	return NULL;
+
+out_unlock2:
+	read_unlock(&files->file_lock);
+	put_files_struct(files);
+out_unlock:
+	iput(inode);
+out:
+	return ERR_PTR(-ENOENT);
+}
+
+static struct file_operations proc_fd_operations = {
+	read:		generic_read_dir,
+	readdir:	proc_readfd,
+};
+
+/*
+ * proc directories can do almost nothing..
+ */
+static struct inode_operations proc_fd_inode_operations = {
+	lookup:		proc_lookupfd,
+	permission:	proc_permission,
+};
+
+static struct dentry *proc_base_lookup(struct inode *dir, struct dentry *dentry)
+{
+	struct inode *inode;
+	int error;
+	struct task_struct *task = dir->u.proc_i.task;
+	struct pid_entry *p;
+
+	error = -ENOENT;
+	inode = NULL;
+
+	for (p = base_stuff; p->name; p++) {
+		if (p->len != dentry->d_name.len)
+			continue;
+		if (!memcmp(dentry->d_name.name, p->name, p->len))
+			break;
+	}
+	if (!p->name)
+		goto out;
+
+	error = -EINVAL;
+	inode = proc_pid_make_inode(dir->i_sb, task, p->type);
+	if (!inode)
+		goto out;
+
+	inode->i_mode = p->mode;
+	/*
+	 * Yes, it does not scale. And it should not. Don't add
+	 * new entries into /proc/<pid>/ without very good reasons.
+	 */
+	switch(p->type) {
+		case PROC_PID_FD:
+			inode->i_nlink = 2;
+			inode->i_op = &proc_fd_inode_operations;
+			inode->i_fop = &proc_fd_operations;
+			break;
+		case PROC_PID_EXE:
+			inode->i_op = &proc_pid_link_inode_operations;
+			inode->u.proc_i.op.proc_get_link = proc_exe_link;
+			break;
+		case PROC_PID_CWD:
+			inode->i_op = &proc_pid_link_inode_operations;
+			inode->u.proc_i.op.proc_get_link = proc_cwd_link;
+			break;
+		case PROC_PID_ROOT:
+			inode->i_op = &proc_pid_link_inode_operations;
+			inode->u.proc_i.op.proc_get_link = proc_root_link;
+			break;
+		case PROC_PID_ENVIRON:
+			inode->i_fop = &proc_info_file_operations;
+			inode->u.proc_i.op.proc_read = proc_pid_environ;
+			break;
+		case PROC_PID_STATUS:
+			inode->i_fop = &proc_info_file_operations;
+			inode->u.proc_i.op.proc_read = proc_pid_status;
+			break;
+		case PROC_PID_STAT:
+			inode->i_fop = &proc_info_file_operations;
+			inode->u.proc_i.op.proc_read = proc_pid_stat;
+			break;
+		case PROC_PID_CMDLINE:
+			inode->i_fop = &proc_info_file_operations;
+			inode->u.proc_i.op.proc_read = proc_pid_cmdline;
+			break;
+		case PROC_PID_STATM:
+			inode->i_fop = &proc_info_file_operations;
+			inode->u.proc_i.op.proc_read = proc_pid_statm;
+			break;
+		case PROC_PID_MAPS:
+			inode->i_fop = &proc_maps_operations;
+			break;
+#ifdef CONFIG_SMP
+		case PROC_PID_CPU:
+			inode->i_fop = &proc_info_file_operations;
+			inode->u.proc_i.op.proc_read = proc_pid_cpu;
+			break;
+#endif
+		case PROC_PID_MEM:
+			inode->i_op = &proc_mem_inode_operations;
+			inode->i_fop = &proc_mem_operations;
+			break;
+		case PROC_PID_MOUNTS:
+			inode->i_fop = &proc_mounts_operations;
+			break;
+		default:
+			printk("procfs: impossible type (%d)",p->type);
+			iput(inode);
+			return ERR_PTR(-EINVAL);
+	}
+	dentry->d_op = &pid_dentry_operations;
+	d_add(dentry, inode);
+	return NULL;
+
+out:
+	return ERR_PTR(error);
+}
+
+static struct file_operations proc_base_operations = {
+	read:		generic_read_dir,
+	readdir:	proc_base_readdir,
+};
+
+static struct inode_operations proc_base_inode_operations = {
+	lookup:		proc_base_lookup,
+};
+
+/*
+ * /proc/self:
+ */
+static int proc_self_readlink(struct dentry *dentry, char *buffer, int buflen)
+{
+	char tmp[30];
+	sprintf(tmp, "%d", current->pid);
+	return vfs_readlink(dentry,buffer,buflen,tmp);
+}
+
+static int proc_self_follow_link(struct dentry *dentry, struct nameidata *nd)
+{
+	char tmp[30];
+	sprintf(tmp, "%d", current->pid);
+	return vfs_follow_link(nd,tmp);
+}	
+
+static struct inode_operations proc_self_inode_operations = {
+	readlink:	proc_self_readlink,
+	follow_link:	proc_self_follow_link,
+};
+
+struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry)
+{
+	unsigned int pid, c;
+	struct task_struct *task;
+	const char *name;
+	struct inode *inode;
+	int len;
+
+	pid = 0;
+	name = dentry->d_name.name;
+	len = dentry->d_name.len;
+	if (len == 4 && !memcmp(name, "self", 4)) {
+		inode = new_inode(dir->i_sb);
+		if (!inode)
+			return ERR_PTR(-ENOMEM);
+		inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+		inode->i_ino = fake_ino(0, PROC_PID_INO);
+		inode->u.proc_i.file = NULL;
+		inode->u.proc_i.task = NULL;
+		inode->i_mode = S_IFLNK|S_IRWXUGO;
+		inode->i_uid = inode->i_gid = 0;
+		inode->i_size = 64;
+		inode->i_op = &proc_self_inode_operations;
+		d_add(dentry, inode);
+		return NULL;
+	}
+	while (len-- > 0) {
+		c = *name - '0';
+		name++;
+		if (c > 9)
+			goto out;
+		if (pid >= MAX_MULBY10)
+			goto out;
+		pid *= 10;
+		pid += c;
+		if (!pid)
+			goto out;
+	}
+
+	read_lock(&tasklist_lock);
+	task = find_task_by_pid(pid);
+	if (task)
+		get_task_struct(task);
+	read_unlock(&tasklist_lock);
+	if (!task)
+		goto out;
+
+	inode = proc_pid_make_inode(dir->i_sb, task, PROC_PID_INO);
+
+	free_task_struct(task);
+
+	if (!inode)
+		goto out;
+	inode->i_mode = S_IFDIR|S_IRUGO|S_IXUGO;
+	inode->i_op = &proc_base_inode_operations;
+	inode->i_fop = &proc_base_operations;
+	inode->i_nlink = 3;
+	inode->i_flags|=S_IMMUTABLE;
+
+	dentry->d_op = &pid_base_dentry_operations;
+	d_add(dentry, inode);
+	return NULL;
+out:
+	return ERR_PTR(-ENOENT);
+}
+
+void proc_pid_delete_inode(struct inode *inode)
+{
+	if (inode->u.proc_i.file)
+		fput(inode->u.proc_i.file);
+	if (inode->u.proc_i.task)
+		free_task_struct(inode->u.proc_i.task);
+}
+
+#define PROC_NUMBUF 10
+#define PROC_MAXPIDS 20
+
+/*
+ * Get a few pid's to return for filldir - we need to hold the
+ * tasklist lock while doing this, and we must release it before
+ * we actually do the filldir itself, so we use a temp buffer..
+ */
+static int get_pid_list(int index, unsigned int *pids)
+{
+	struct task_struct *p;
+	int nr_pids = 0;
+
+	index--;
+	read_lock(&tasklist_lock);
+	for_each_task(p) {
+		int pid = p->pid;
+		if (!pid)
+			continue;
+		if (--index >= 0)
+			continue;
+		pids[nr_pids] = pid;
+		nr_pids++;
+		if (nr_pids >= PROC_MAXPIDS)
+			break;
+	}
+	read_unlock(&tasklist_lock);
+	return nr_pids;
+}
+
+int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir)
+{
+	unsigned int pid_array[PROC_MAXPIDS];
+	char buf[PROC_NUMBUF];
+	unsigned int nr = filp->f_pos - FIRST_PROCESS_ENTRY;
+	unsigned int nr_pids, i;
+
+	if (!nr) {
+		ino_t ino = fake_ino(0,PROC_PID_INO);
+		if (filldir(dirent, "self", 4, filp->f_pos, ino, DT_LNK) < 0)
+			return 0;
+		filp->f_pos++;
+		nr++;
+	}
+
+	nr_pids = get_pid_list(nr, pid_array);
+
+	for (i = 0; i < nr_pids; i++) {
+		int pid = pid_array[i];
+		ino_t ino = fake_ino(pid,PROC_PID_INO);
+		unsigned long j = PROC_NUMBUF;
+
+		do buf[--j] = '0' + (pid % 10); while (pid/=10);
+
+		if (filldir(dirent, buf+j, PROC_NUMBUF-j, filp->f_pos, ino, DT_DIR) < 0)
+			break;
+		filp->f_pos++;
+	}
+	return 0;
+}
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
new file mode 100644
index 00000000000000..896e79a460fca2
--- /dev/null
+++ b/fs/proc/generic.c
@@ -0,0 +1,598 @@
+/*
+ * proc/fs/generic.c --- generic routines for the proc-fs
+ *
+ * This file contains generic proc-fs routines for handling
+ * directories and files.
+ * 
+ * Copyright (C) 1991, 1992 Linus Torvalds.
+ * Copyright (C) 1997 Theodore Ts'o
+ */
+
+#include <asm/uaccess.h>
+
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/proc_fs.h>
+#include <linux/stat.h>
+#define __NO_VERSION__
+#include <linux/module.h>
+#include <asm/bitops.h>
+
+static ssize_t proc_file_read(struct file * file, char * buf,
+			      size_t nbytes, loff_t *ppos);
+static ssize_t proc_file_write(struct file * file, const char * buffer,
+			       size_t count, loff_t *ppos);
+static loff_t proc_file_lseek(struct file *, loff_t, int);
+
+int proc_match(int len, const char *name,struct proc_dir_entry * de)
+{
+	if (!de || !de->low_ino)
+		return 0;
+	if (de->namelen != len)
+		return 0;
+	return !memcmp(name, de->name, len);
+}
+
+static struct file_operations proc_file_operations = {
+	llseek:		proc_file_lseek,
+	read:		proc_file_read,
+	write:		proc_file_write,
+};
+
+#ifndef MIN
+#define MIN(a,b) (((a) < (b)) ? (a) : (b))
+#endif
+
+/* buffer size is one page but our output routines use some slack for overruns */
+#define PROC_BLOCK_SIZE	(PAGE_SIZE - 1024)
+
+static ssize_t
+proc_file_read(struct file * file, char * buf, size_t nbytes, loff_t *ppos)
+{
+	struct inode * inode = file->f_dentry->d_inode;
+	char 	*page;
+	ssize_t	retval=0;
+	int	eof=0;
+	ssize_t	n, count;
+	char	*start;
+	struct proc_dir_entry * dp;
+	loff_t pos = *ppos;
+
+	dp = (struct proc_dir_entry *) inode->u.generic_ip;
+	if (!(page = (char*) __get_free_page(GFP_KERNEL)))
+		return -ENOMEM;
+
+	while ((nbytes > 0) && !eof)
+	{
+		count = MIN(PROC_BLOCK_SIZE, nbytes);
+		if ((unsigned)pos > INT_MAX)
+			break;
+
+		start = NULL;
+		if (dp->get_info) {
+			/*
+			 * Handle backwards compatibility with the old net
+			 * routines.
+			 */
+			n = dp->get_info(page, &start, pos, count);
+			if (n < count)
+				eof = 1;
+		} else if (dp->read_proc) {
+			n = dp->read_proc(page, &start, pos,
+					  count, &eof, dp->data);
+		} else
+			break;
+
+		if (!start) {
+			/*
+			 * For proc files that are less than 4k
+			 */
+			start = page + pos;
+			n -= pos;
+			if (n <= 0)
+				break;
+			if (n > count)
+				n = count;
+		}
+		if (n == 0)
+			break;	/* End of file */
+		if (n < 0) {
+			if (retval == 0)
+				retval = n;
+			break;
+		}
+		
+		/* This is a hack to allow mangling of file pos independent
+ 		 * of actual bytes read.  Simply place the data at page,
+ 		 * return the bytes, and set `start' to the desired offset
+ 		 * as an unsigned int. - Paul.Russell@rustcorp.com.au
+		 */
+ 		n -= copy_to_user(buf, start < page ? page : start, n);
+		if (n == 0) {
+			if (retval == 0)
+				retval = -EFAULT;
+			break;
+		}
+
+		pos += start < page ? (long)start : n; /* Move down the file */
+		nbytes -= n;
+		buf += n;
+		retval += n;
+	}
+	free_page((unsigned long) page);
+	*ppos = pos;
+	return retval;
+}
+
+static ssize_t
+proc_file_write(struct file * file, const char * buffer,
+		size_t count, loff_t *ppos)
+{
+	struct inode *inode = file->f_dentry->d_inode;
+	struct proc_dir_entry * dp;
+	
+	dp = (struct proc_dir_entry *) inode->u.generic_ip;
+
+	if (!dp->write_proc)
+		return -EIO;
+
+	/* FIXME: does this routine need ppos?  probably... */
+	return dp->write_proc(file, buffer, count, dp->data);
+}
+
+
+static loff_t
+proc_file_lseek(struct file * file, loff_t offset, int origin)
+{
+	long long retval;
+
+	switch (origin) {
+		case 2:
+			offset += file->f_dentry->d_inode->i_size;
+			break;
+		case 1:
+			offset += file->f_pos;
+	}
+	retval = -EINVAL;
+	if (offset>=0 && (unsigned long long)offset<=file->f_dentry->d_inode->i_sb->s_maxbytes) {
+		if (offset != file->f_pos) {
+			file->f_pos = offset;
+			file->f_reada = 0;
+		}
+		retval = offset;
+	}
+	/* RED-PEN user can fake an error here by setting offset to >=-4095 && <0  */
+	return retval;
+}
+
+/*
+ * This function parses a name such as "tty/driver/serial", and
+ * returns the struct proc_dir_entry for "/proc/tty/driver", and
+ * returns "serial" in residual.
+ */
+static int xlate_proc_name(const char *name,
+			   struct proc_dir_entry **ret, const char **residual)
+{
+	const char     		*cp = name, *next;
+	struct proc_dir_entry	*de;
+	int			len;
+
+	de = &proc_root;
+	while (1) {
+		next = strchr(cp, '/');
+		if (!next)
+			break;
+
+		len = next - cp;
+		for (de = de->subdir; de ; de = de->next) {
+			if (proc_match(len, cp, de))
+				break;
+		}
+		if (!de)
+			return -ENOENT;
+		cp += len + 1;
+	}
+	*residual = cp;
+	*ret = de;
+	return 0;
+}
+
+static unsigned long proc_alloc_map[(PROC_NDYNAMIC + BITS_PER_LONG - 1) / BITS_PER_LONG];
+
+spinlock_t proc_alloc_map_lock = SPIN_LOCK_UNLOCKED;
+
+static int make_inode_number(void)
+{
+	int i;
+	spin_lock(&proc_alloc_map_lock);
+	i = find_first_zero_bit(proc_alloc_map, PROC_NDYNAMIC);
+	if (i < 0 || i >= PROC_NDYNAMIC) {
+		i = -1;
+		goto out;
+	}
+	set_bit(i, proc_alloc_map);
+	i += PROC_DYNAMIC_FIRST;
+out:
+	spin_unlock(&proc_alloc_map_lock);
+	return i;
+}
+
+static int proc_readlink(struct dentry *dentry, char *buffer, int buflen)
+{
+	char *s=((struct proc_dir_entry *)dentry->d_inode->u.generic_ip)->data;
+	return vfs_readlink(dentry, buffer, buflen, s);
+}
+
+static int proc_follow_link(struct dentry *dentry, struct nameidata *nd)
+{
+	char *s=((struct proc_dir_entry *)dentry->d_inode->u.generic_ip)->data;
+	return vfs_follow_link(nd, s);
+}
+
+static struct inode_operations proc_link_inode_operations = {
+	readlink:	proc_readlink,
+	follow_link:	proc_follow_link,
+};
+
+/*
+ * As some entries in /proc are volatile, we want to 
+ * get rid of unused dentries.  This could be made 
+ * smarter: we could keep a "volatile" flag in the 
+ * inode to indicate which ones to keep.
+ */
+static int proc_delete_dentry(struct dentry * dentry)
+{
+	return 1;
+}
+
+static struct dentry_operations proc_dentry_operations =
+{
+	d_delete:	proc_delete_dentry,
+};
+
+/*
+ * Don't create negative dentries here, return -ENOENT by hand
+ * instead.
+ */
+struct dentry *proc_lookup(struct inode * dir, struct dentry *dentry)
+{
+	struct inode *inode;
+	struct proc_dir_entry * de;
+	int error;
+
+	error = -ENOENT;
+	inode = NULL;
+	de = (struct proc_dir_entry *) dir->u.generic_ip;
+	if (de) {
+		for (de = de->subdir; de ; de = de->next) {
+			if (!de || !de->low_ino)
+				continue;
+			if (de->namelen != dentry->d_name.len)
+				continue;
+			if (!memcmp(dentry->d_name.name, de->name, de->namelen)) {
+				int ino = de->low_ino;
+				error = -EINVAL;
+				inode = proc_get_inode(dir->i_sb, ino, de);
+				break;
+			}
+		}
+	}
+
+	if (inode) {
+		dentry->d_op = &proc_dentry_operations;
+		d_add(dentry, inode);
+		return NULL;
+	}
+	return ERR_PTR(error);
+}
+
+/*
+ * This returns non-zero if at EOF, so that the /proc
+ * root directory can use this and check if it should
+ * continue with the <pid> entries..
+ *
+ * Note that the VFS-layer doesn't care about the return
+ * value of the readdir() call, as long as it's non-negative
+ * for success..
+ */
+int proc_readdir(struct file * filp,
+	void * dirent, filldir_t filldir)
+{
+	struct proc_dir_entry * de;
+	unsigned int ino;
+	int i;
+	struct inode *inode = filp->f_dentry->d_inode;
+
+	ino = inode->i_ino;
+	de = (struct proc_dir_entry *) inode->u.generic_ip;
+	if (!de)
+		return -EINVAL;
+	i = filp->f_pos;
+	switch (i) {
+		case 0:
+			if (filldir(dirent, ".", 1, i, ino, DT_DIR) < 0)
+				return 0;
+			i++;
+			filp->f_pos++;
+			/* fall through */
+		case 1:
+			if (filldir(dirent, "..", 2, i,
+				    filp->f_dentry->d_parent->d_inode->i_ino,
+				    DT_DIR) < 0)
+				return 0;
+			i++;
+			filp->f_pos++;
+			/* fall through */
+		default:
+			de = de->subdir;
+			i -= 2;
+			for (;;) {
+				if (!de)
+					return 1;
+				if (!i)
+					break;
+				de = de->next;
+				i--;
+			}
+
+			do {
+				if (filldir(dirent, de->name, de->namelen, filp->f_pos,
+					    de->low_ino, de->mode >> 12) < 0)
+					return 0;
+				filp->f_pos++;
+				de = de->next;
+			} while (de);
+	}
+	return 1;
+}
+
+/*
+ * These are the generic /proc directory operations. They
+ * use the in-memory "struct proc_dir_entry" tree to parse
+ * the /proc directory.
+ */
+static struct file_operations proc_dir_operations = {
+	read:			generic_read_dir,
+	readdir:		proc_readdir,
+};
+
+/*
+ * proc directories can do almost nothing..
+ */
+static struct inode_operations proc_dir_inode_operations = {
+	lookup:		proc_lookup,
+};
+
+static int proc_register(struct proc_dir_entry * dir, struct proc_dir_entry * dp)
+{
+	int	i;
+	
+	i = make_inode_number();
+	if (i < 0)
+		return -EAGAIN;
+	dp->low_ino = i;
+	dp->next = dir->subdir;
+	dp->parent = dir;
+	dir->subdir = dp;
+	if (S_ISDIR(dp->mode)) {
+		if (dp->proc_iops == NULL) {
+			dp->proc_fops = &proc_dir_operations;
+			dp->proc_iops = &proc_dir_inode_operations;
+		}
+		dir->nlink++;
+	} else if (S_ISLNK(dp->mode)) {
+		if (dp->proc_iops == NULL)
+			dp->proc_iops = &proc_link_inode_operations;
+	} else if (S_ISREG(dp->mode)) {
+		if (dp->proc_fops == NULL)
+			dp->proc_fops = &proc_file_operations;
+	}
+	return 0;
+}
+
+/*
+ * Kill an inode that got unregistered..
+ */
+static void proc_kill_inodes(struct proc_dir_entry *de)
+{
+	struct list_head *p;
+	struct super_block *sb = proc_mnt->mnt_sb;
+
+	/*
+	 * Actually it's a partial revoke().
+	 */
+	file_list_lock();
+	for (p = sb->s_files.next; p != &sb->s_files; p = p->next) {
+		struct file * filp = list_entry(p, struct file, f_list);
+		struct dentry * dentry = filp->f_dentry;
+		struct inode * inode;
+		struct file_operations *fops;
+
+		if (dentry->d_op != &proc_dentry_operations)
+			continue;
+		inode = dentry->d_inode;
+		if (inode->u.generic_ip != de)
+			continue;
+		fops = filp->f_op;
+		filp->f_op = NULL;
+		fops_put(fops);
+	}
+	file_list_unlock();
+}
+
+static struct proc_dir_entry *proc_create(struct proc_dir_entry **parent,
+					  const char *name,
+					  mode_t mode,
+					  nlink_t nlink)
+{
+	struct proc_dir_entry *ent = NULL;
+	const char *fn = name;
+	int len;
+
+	/* make sure name is valid */
+	if (!name || !strlen(name)) goto out;
+
+	if (!(*parent) && xlate_proc_name(name, parent, &fn) != 0)
+		goto out;
+	len = strlen(fn);
+
+	ent = kmalloc(sizeof(struct proc_dir_entry) + len + 1, GFP_KERNEL);
+	if (!ent) goto out;
+
+	memset(ent, 0, sizeof(struct proc_dir_entry));
+	memcpy(((char *) ent) + sizeof(struct proc_dir_entry), fn, len + 1);
+	ent->name = ((char *) ent) + sizeof(*ent);
+	ent->namelen = len;
+	ent->mode = mode;
+	ent->nlink = nlink;
+ out:
+	return ent;
+}
+
+struct proc_dir_entry *proc_symlink(const char *name,
+		struct proc_dir_entry *parent, const char *dest)
+{
+	struct proc_dir_entry *ent;
+
+	ent = proc_create(&parent,name,
+			  (S_IFLNK | S_IRUGO | S_IWUGO | S_IXUGO),1);
+
+	if (ent) {
+		ent->data = kmalloc((ent->size=strlen(dest))+1, GFP_KERNEL);
+		if (ent->data) {
+			strcpy((char*)ent->data,dest);
+			if (proc_register(parent, ent) < 0) {
+				kfree(ent->data);
+				kfree(ent);
+				ent = NULL;
+			}
+		} else {
+			kfree(ent);
+			ent = NULL;
+		}
+	}
+	return ent;
+}
+
+struct proc_dir_entry *proc_mknod(const char *name, mode_t mode,
+		struct proc_dir_entry *parent, kdev_t rdev)
+{
+	struct proc_dir_entry *ent;
+
+	ent = proc_create(&parent,name,mode,1);
+	if (ent) {
+		ent->rdev = rdev;
+		if (proc_register(parent, ent) < 0) {
+			kfree(ent);
+			ent = NULL;
+		}
+	}
+	return ent;
+}
+
+struct proc_dir_entry *proc_mkdir_mode(const char *name, mode_t mode,
+		struct proc_dir_entry *parent)
+{
+	struct proc_dir_entry *ent;
+
+	ent = proc_create(&parent, name, S_IFDIR | mode, 2);
+	if (ent) {
+		ent->proc_fops = &proc_dir_operations;
+		ent->proc_iops = &proc_dir_inode_operations;
+
+		if (proc_register(parent, ent) < 0) {
+			kfree(ent);
+			ent = NULL;
+		}
+	}
+	return ent;
+}
+
+struct proc_dir_entry *proc_mkdir(const char *name,
+		struct proc_dir_entry *parent)
+{
+	return proc_mkdir_mode(name, S_IRUGO | S_IXUGO, parent);
+}
+
+struct proc_dir_entry *create_proc_entry(const char *name, mode_t mode,
+					 struct proc_dir_entry *parent)
+{
+	struct proc_dir_entry *ent;
+	nlink_t nlink;
+
+	if (S_ISDIR(mode)) {
+		if ((mode & S_IALLUGO) == 0)
+			mode |= S_IRUGO | S_IXUGO;
+		nlink = 2;
+	} else {
+		if ((mode & S_IFMT) == 0)
+			mode |= S_IFREG;
+		if ((mode & S_IALLUGO) == 0)
+			mode |= S_IRUGO;
+		nlink = 1;
+	}
+
+	ent = proc_create(&parent,name,mode,nlink);
+	if (ent) {
+		if (S_ISDIR(mode)) {
+			ent->proc_fops = &proc_dir_operations;
+			ent->proc_iops = &proc_dir_inode_operations;
+		}
+		if (proc_register(parent, ent) < 0) {
+			kfree(ent);
+			ent = NULL;
+		}
+	}
+	return ent;
+}
+
+void free_proc_entry(struct proc_dir_entry *de)
+{
+	int ino = de->low_ino;
+
+	if (ino < PROC_DYNAMIC_FIRST ||
+	    ino >= PROC_DYNAMIC_FIRST+PROC_NDYNAMIC)
+		return;
+	if (S_ISLNK(de->mode) && de->data)
+		kfree(de->data);
+	kfree(de);
+}
+
+/*
+ * Remove a /proc entry and free it if it's not currently in use.
+ * If it is in use, we set the 'deleted' flag.
+ */
+void remove_proc_entry(const char *name, struct proc_dir_entry *parent)
+{
+	struct proc_dir_entry **p;
+	struct proc_dir_entry *de;
+	const char *fn = name;
+	int len;
+
+	if (!parent && xlate_proc_name(name, &parent, &fn) != 0)
+		goto out;
+	len = strlen(fn);
+	for (p = &parent->subdir; *p; p=&(*p)->next ) {
+		if (!proc_match(len, fn, *p))
+			continue;
+		de = *p;
+		*p = de->next;
+		de->next = NULL;
+		if (S_ISDIR(de->mode))
+			parent->nlink--;
+		clear_bit(de->low_ino - PROC_DYNAMIC_FIRST,
+			  proc_alloc_map);
+		proc_kill_inodes(de);
+		de->nlink = 0;
+		if (!atomic_read(&de->count))
+			free_proc_entry(de);
+		else {
+			de->deleted = 1;
+			printk("remove_proc_entry: %s/%s busy, count=%d\n",
+				parent->name, de->name, atomic_read(&de->count));
+		}
+		break;
+	}
+out:
+	return;
+}
diff --git a/fs/proc/inode-alloc.txt b/fs/proc/inode-alloc.txt
new file mode 100644
index 00000000000000..fbcfa4e402e244
--- /dev/null
+++ b/fs/proc/inode-alloc.txt
@@ -0,0 +1,13 @@
+Current inode allocations in the proc-fs (hex-numbers):
+
+  00000000		reserved
+  00000001-00000fff	static entries	(goners)
+       001		root-ino
+
+  00001000-00001fff	dynamic entries
+  0001xxxx-7fffxxxx	pid-dir entries for pid 1-7fff
+  80000000-ffffffff	unused
+
+Goal:
+	a) once we'll split the thing into several virtual filesystems we
+	will get rid of magical ranges (and this file, BTW).
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
new file mode 100644
index 00000000000000..2937eb02910383
--- /dev/null
+++ b/fs/proc/inode.c
@@ -0,0 +1,211 @@
+/*
+ *  linux/fs/proc/inode.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ */
+
+#include <linux/sched.h>
+#include <linux/proc_fs.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/string.h>
+#include <linux/stat.h>
+#include <linux/file.h>
+#include <linux/locks.h>
+#include <linux/limits.h>
+#define __NO_VERSION__
+#include <linux/module.h>
+#include <linux/smp_lock.h>
+
+#include <asm/system.h>
+#include <asm/uaccess.h>
+
+extern void free_proc_entry(struct proc_dir_entry *);
+
+static inline struct proc_dir_entry * de_get(struct proc_dir_entry *de)
+{
+	if (de)
+		atomic_inc(&de->count);
+	return de;
+}
+
+/*
+ * Decrements the use count and checks for deferred deletion.
+ */
+static void de_put(struct proc_dir_entry *de)
+{
+	if (de) {	
+		lock_kernel();		
+		if (!atomic_read(&de->count)) {
+			printk("de_put: entry %s already free!\n", de->name);
+			unlock_kernel();
+			return;
+		}
+
+		if (atomic_dec_and_test(&de->count)) {
+			if (de->deleted) {
+				printk("de_put: deferred delete of %s\n",
+					de->name);
+				free_proc_entry(de);
+			}
+		}		
+		unlock_kernel();
+	}
+}
+
+/*
+ * Decrement the use count of the proc_dir_entry.
+ */
+static void proc_delete_inode(struct inode *inode)
+{
+	struct proc_dir_entry *de = inode->u.generic_ip;
+
+	inode->i_state = I_CLEAR;
+
+	if (PROC_INODE_PROPER(inode)) {
+		proc_pid_delete_inode(inode);
+		return;
+	}
+	if (de) {
+		if (de->owner)
+			__MOD_DEC_USE_COUNT(de->owner);
+		de_put(de);
+	}
+}
+
+struct vfsmount *proc_mnt;
+
+static void proc_read_inode(struct inode * inode)
+{
+	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+}
+
+static int proc_statfs(struct super_block *sb, struct statfs *buf)
+{
+	buf->f_type = PROC_SUPER_MAGIC;
+	buf->f_bsize = PAGE_SIZE/sizeof(long);
+	buf->f_bfree = 0;
+	buf->f_bavail = 0;
+	buf->f_ffree = 0;
+	buf->f_namelen = NAME_MAX;
+	return 0;
+}
+
+static struct super_operations proc_sops = { 
+	read_inode:	proc_read_inode,
+	put_inode:	force_delete,
+	delete_inode:	proc_delete_inode,
+	statfs:		proc_statfs,
+};
+
+
+static int parse_options(char *options,uid_t *uid,gid_t *gid)
+{
+	char *this_char,*value;
+
+	*uid = current->uid;
+	*gid = current->gid;
+	if (!options) return 1;
+	for (this_char = strtok(options,","); this_char; this_char = strtok(NULL,",")) {
+		if ((value = strchr(this_char,'=')) != NULL)
+			*value++ = 0;
+		if (!strcmp(this_char,"uid")) {
+			if (!value || !*value)
+				return 0;
+			*uid = simple_strtoul(value,&value,0);
+			if (*value)
+				return 0;
+		}
+		else if (!strcmp(this_char,"gid")) {
+			if (!value || !*value)
+				return 0;
+			*gid = simple_strtoul(value,&value,0);
+			if (*value)
+				return 0;
+		}
+		else return 1;
+	}
+	return 1;
+}
+
+struct inode * proc_get_inode(struct super_block * sb, int ino,
+				struct proc_dir_entry * de)
+{
+	struct inode * inode;
+
+	/*
+	 * Increment the use count so the dir entry can't disappear.
+	 */
+	de_get(de);
+#if 1
+/* shouldn't ever happen */
+if (de && de->deleted)
+printk("proc_iget: using deleted entry %s, count=%d\n", de->name, atomic_read(&de->count));
+#endif
+
+	inode = iget(sb, ino);
+	if (!inode)
+		goto out_fail;
+	
+	inode->u.generic_ip = (void *) de;
+	if (de) {
+		if (de->mode) {
+			inode->i_mode = de->mode;
+			inode->i_uid = de->uid;
+			inode->i_gid = de->gid;
+		}
+		if (de->size)
+			inode->i_size = de->size;
+		if (de->nlink)
+			inode->i_nlink = de->nlink;
+		if (de->owner)
+			__MOD_INC_USE_COUNT(de->owner);
+		if (de->proc_iops)
+			inode->i_op = de->proc_iops;
+		if (de->proc_fops)
+			inode->i_fop = de->proc_fops;
+		else if (S_ISBLK(de->mode)||S_ISCHR(de->mode)||S_ISFIFO(de->mode))
+			init_special_inode(inode,de->mode,kdev_t_to_nr(de->rdev));
+	}
+
+out:
+	return inode;
+
+out_fail:
+	de_put(de);
+	goto out;
+}			
+
+struct super_block *proc_read_super(struct super_block *s,void *data, 
+				    int silent)
+{
+	struct inode * root_inode;
+	struct task_struct *p;
+
+	s->s_blocksize = 1024;
+	s->s_blocksize_bits = 10;
+	s->s_magic = PROC_SUPER_MAGIC;
+	s->s_op = &proc_sops;
+	s->s_maxbytes = ~0UL;
+	
+	root_inode = proc_get_inode(s, PROC_ROOT_INO, &proc_root);
+	if (!root_inode)
+		goto out_no_root;
+	/*
+	 * Fixup the root inode's nlink value
+	 */
+	read_lock(&tasklist_lock);
+	for_each_task(p) if (p->pid) root_inode->i_nlink++;
+	read_unlock(&tasklist_lock);
+	s->s_root = d_alloc_root(root_inode);
+	if (!s->s_root)
+		goto out_no_root;
+	parse_options(data, &root_inode->i_uid, &root_inode->i_gid);
+	return s;
+
+out_no_root:
+	printk("proc_read_super: get root inode failed\n");
+	iput(root_inode);
+	return NULL;
+}
+MODULE_LICENSE("GPL");
diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
new file mode 100644
index 00000000000000..cfd5102c6901cc
--- /dev/null
+++ b/fs/proc/kcore.c
@@ -0,0 +1,478 @@
+/*
+ *	fs/proc/kcore.c kernel ELF/AOUT core dumper
+ *
+ *	Modelled on fs/exec.c:aout_core_dump()
+ *	Jeremy Fitzhardinge <jeremy@sw.oz.au>
+ *	ELF version written by David Howells <David.Howells@nexor.co.uk>
+ *	Modified and incorporated into 2.3.x by Tigran Aivazian <tigran@veritas.com>
+ *	Support to dump vmalloc'd areas (ELF only), Tigran Aivazian <tigran@veritas.com>
+ *	Safe accesses to vmalloc/direct-mapped discontiguous areas, Kanoj Sarcar <kanoj@sgi.com>
+ */
+
+#include <linux/config.h>
+#include <linux/mm.h>
+#include <linux/proc_fs.h>
+#include <linux/user.h>
+#include <linux/a.out.h>
+#include <linux/elf.h>
+#include <linux/elfcore.h>
+#include <linux/vmalloc.h>
+#include <linux/highmem.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+
+
+static int open_kcore(struct inode * inode, struct file * filp)
+{
+	return capable(CAP_SYS_RAWIO) ? 0 : -EPERM;
+}
+
+static loff_t lseek_kcore(struct file * file, loff_t offset, int origin);
+
+static ssize_t read_kcore(struct file *, char *, size_t, loff_t *);
+
+struct file_operations proc_kcore_operations = {
+	read:		read_kcore,
+	open:		open_kcore,
+	llseek:		lseek_kcore,
+};
+
+#ifdef CONFIG_KCORE_AOUT
+static ssize_t read_kcore(struct file *file, char *buf, size_t count, loff_t *ppos)
+{
+	unsigned long long p = *ppos, memsize;
+	ssize_t read;
+	ssize_t count1;
+	char * pnt;
+	struct user dump;
+#if defined (__i386__) || defined (__mc68000__) || defined(__x86_64__)
+#	define FIRST_MAPPED	PAGE_SIZE	/* we don't have page 0 mapped on x86.. */
+#else
+#	define FIRST_MAPPED	0
+#endif
+
+	memset(&dump, 0, sizeof(struct user));
+	dump.magic = CMAGIC;
+	dump.u_dsize = (virt_to_phys(high_memory) >> PAGE_SHIFT);
+#if defined (__i386__) || defined(__x86_64__)
+	dump.start_code = PAGE_OFFSET;
+#endif
+#ifdef __alpha__
+	dump.start_data = PAGE_OFFSET;
+#endif
+
+	memsize = virt_to_phys(high_memory);
+	if (p >= memsize)
+		return 0;
+	if (count > memsize - p)
+		count = memsize - p;
+	read = 0;
+
+	if (p < sizeof(struct user) && count > 0) {
+		count1 = count;
+		if (p + count1 > sizeof(struct user))
+			count1 = sizeof(struct user)-p;
+		pnt = (char *) &dump + p;
+		if (copy_to_user(buf,(void *) pnt, count1))
+			return -EFAULT;
+		buf += count1;
+		p += count1;
+		count -= count1;
+		read += count1;
+	}
+
+	if (count > 0 && p < PAGE_SIZE + FIRST_MAPPED) {
+		count1 = PAGE_SIZE + FIRST_MAPPED - p;
+		if (count1 > count)
+			count1 = count;
+		if (clear_user(buf, count1))
+			return -EFAULT;
+		buf += count1;
+		p += count1;
+		count -= count1;
+		read += count1;
+	}
+	if (count > 0) {
+		if (copy_to_user(buf, (void *) (PAGE_OFFSET+p-PAGE_SIZE), count))
+			return -EFAULT;
+		read += count;
+		p += count;
+	}
+	*ppos = p;
+	return read;
+}
+#else /* CONFIG_KCORE_AOUT */
+
+#define roundup(x, y)  ((((x)+((y)-1))/(y))*(y))
+
+/* An ELF note in memory */
+struct memelfnote
+{
+	const char *name;
+	int type;
+	unsigned int datasz;
+	void *data;
+};
+
+extern char saved_command_line[];
+
+static unsigned long get_kcore_size(int *num_vma, size_t *elf_buflen)
+{
+	unsigned long try, size;
+	struct vm_struct *m;
+
+	*num_vma = 0;
+	size = ((size_t)high_memory - PAGE_OFFSET + PAGE_SIZE);
+	if (!vmlist) {
+		*elf_buflen = PAGE_SIZE;
+		return (size);
+	}
+
+	for (m=vmlist; m; m=m->next) {
+		try = (unsigned long)m->addr + m->size;
+		if (try > size)
+			size = try;
+		*num_vma = *num_vma + 1;
+	}
+	*elf_buflen =	sizeof(struct elfhdr) + 
+			(*num_vma + 2)*sizeof(struct elf_phdr) + 
+			3 * (sizeof(struct elf_note) + 4) +
+			sizeof(struct elf_prstatus) +
+			sizeof(struct elf_prpsinfo) +
+			sizeof(struct task_struct);
+	*elf_buflen = PAGE_ALIGN(*elf_buflen);
+	return (size - PAGE_OFFSET + *elf_buflen);
+}
+
+
+/*****************************************************************************/
+/*
+ * determine size of ELF note
+ */
+static int notesize(struct memelfnote *en)
+{
+	int sz;
+
+	sz = sizeof(struct elf_note);
+	sz += roundup(strlen(en->name), 4);
+	sz += roundup(en->datasz, 4);
+
+	return sz;
+} /* end notesize() */
+
+/*****************************************************************************/
+/*
+ * store a note in the header buffer
+ */
+static char *storenote(struct memelfnote *men, char *bufp)
+{
+	struct elf_note en;
+
+#define DUMP_WRITE(addr,nr) do { memcpy(bufp,addr,nr); bufp += nr; } while(0)
+
+	en.n_namesz = strlen(men->name);
+	en.n_descsz = men->datasz;
+	en.n_type = men->type;
+
+	DUMP_WRITE(&en, sizeof(en));
+	DUMP_WRITE(men->name, en.n_namesz);
+
+	/* XXX - cast from long long to long to avoid need for libgcc.a */
+	bufp = (char*) roundup((unsigned long)bufp,4);
+	DUMP_WRITE(men->data, men->datasz);
+	bufp = (char*) roundup((unsigned long)bufp,4);
+
+#undef DUMP_WRITE
+
+	return bufp;
+} /* end storenote() */
+
+/*
+ * store an ELF coredump header in the supplied buffer
+ * num_vma is the number of elements in vmlist
+ */
+static void elf_kcore_store_hdr(char *bufp, int num_vma, int dataoff)
+{
+	struct elf_prstatus prstatus;	/* NT_PRSTATUS */
+	struct elf_prpsinfo prpsinfo;	/* NT_PRPSINFO */
+	struct elf_phdr *nhdr, *phdr;
+	struct elfhdr *elf;
+	struct memelfnote notes[3];
+	off_t offset = 0;
+	struct vm_struct *m;
+
+	/* setup ELF header */
+	elf = (struct elfhdr *) bufp;
+	bufp += sizeof(struct elfhdr);
+	offset += sizeof(struct elfhdr);
+	memcpy(elf->e_ident, ELFMAG, SELFMAG);
+	elf->e_ident[EI_CLASS]	= ELF_CLASS;
+	elf->e_ident[EI_DATA]	= ELF_DATA;
+	elf->e_ident[EI_VERSION]= EV_CURRENT;
+	memset(elf->e_ident+EI_PAD, 0, EI_NIDENT-EI_PAD);
+	elf->e_type	= ET_CORE;
+	elf->e_machine	= ELF_ARCH;
+	elf->e_version	= EV_CURRENT;
+	elf->e_entry	= 0;
+	elf->e_phoff	= sizeof(struct elfhdr);
+	elf->e_shoff	= 0;
+	elf->e_flags	= 0;
+	elf->e_ehsize	= sizeof(struct elfhdr);
+	elf->e_phentsize= sizeof(struct elf_phdr);
+	elf->e_phnum	= 2 + num_vma;
+	elf->e_shentsize= 0;
+	elf->e_shnum	= 0;
+	elf->e_shstrndx	= 0;
+
+	/* setup ELF PT_NOTE program header */
+	nhdr = (struct elf_phdr *) bufp;
+	bufp += sizeof(struct elf_phdr);
+	offset += sizeof(struct elf_phdr);
+	nhdr->p_type	= PT_NOTE;
+	nhdr->p_offset	= 0;
+	nhdr->p_vaddr	= 0;
+	nhdr->p_paddr	= 0;
+	nhdr->p_filesz	= 0;
+	nhdr->p_memsz	= 0;
+	nhdr->p_flags	= 0;
+	nhdr->p_align	= 0;
+
+	/* setup ELF PT_LOAD program header for the 
+	 * virtual range 0xc0000000 -> high_memory */
+	phdr = (struct elf_phdr *) bufp;
+	bufp += sizeof(struct elf_phdr);
+	offset += sizeof(struct elf_phdr);
+	phdr->p_type	= PT_LOAD;
+	phdr->p_flags	= PF_R|PF_W|PF_X;
+	phdr->p_offset	= dataoff;
+	phdr->p_vaddr	= PAGE_OFFSET;
+	phdr->p_paddr	= __pa(PAGE_OFFSET);
+	phdr->p_filesz	= phdr->p_memsz = ((unsigned long)high_memory - PAGE_OFFSET);
+	phdr->p_align	= PAGE_SIZE;
+
+	/* setup ELF PT_LOAD program header for every vmalloc'd area */
+	for (m=vmlist; m; m=m->next) {
+		if (m->flags & VM_IOREMAP) /* don't dump ioremap'd stuff! (TA) */
+			continue;
+
+		phdr = (struct elf_phdr *) bufp;
+		bufp += sizeof(struct elf_phdr);
+		offset += sizeof(struct elf_phdr);
+
+		phdr->p_type	= PT_LOAD;
+		phdr->p_flags	= PF_R|PF_W|PF_X;
+		phdr->p_offset	= (size_t)m->addr - PAGE_OFFSET + dataoff;
+		phdr->p_vaddr	= (size_t)m->addr;
+		phdr->p_paddr	= __pa(m->addr);
+		phdr->p_filesz	= phdr->p_memsz	= m->size;
+		phdr->p_align	= PAGE_SIZE;
+	}
+
+	/*
+	 * Set up the notes in similar form to SVR4 core dumps made
+	 * with info from their /proc.
+	 */
+	nhdr->p_offset	= offset;
+
+	/* set up the process status */
+	notes[0].name = "CORE";
+	notes[0].type = NT_PRSTATUS;
+	notes[0].datasz = sizeof(struct elf_prstatus);
+	notes[0].data = &prstatus;
+
+	memset(&prstatus, 0, sizeof(struct elf_prstatus));
+
+	nhdr->p_filesz += notesize(&notes[0]);
+	bufp = storenote(&notes[0], bufp);
+
+	/* set up the process info */
+	notes[1].name	= "CORE";
+	notes[1].type	= NT_PRPSINFO;
+	notes[1].datasz	= sizeof(struct elf_prpsinfo);
+	notes[1].data	= &prpsinfo;
+
+	memset(&prpsinfo, 0, sizeof(struct elf_prpsinfo));
+	prpsinfo.pr_state	= 0;
+	prpsinfo.pr_sname	= 'R';
+	prpsinfo.pr_zomb	= 0;
+
+	strcpy(prpsinfo.pr_fname, "vmlinux");
+	strncpy(prpsinfo.pr_psargs, saved_command_line, ELF_PRARGSZ);
+
+	nhdr->p_filesz += notesize(&notes[1]);
+	bufp = storenote(&notes[1], bufp);
+
+	/* set up the task structure */
+	notes[2].name	= "CORE";
+	notes[2].type	= NT_TASKSTRUCT;
+	notes[2].datasz	= sizeof(struct task_struct);
+	notes[2].data	= current;
+
+	nhdr->p_filesz += notesize(&notes[2]);
+	bufp = storenote(&notes[2], bufp);
+
+} /* end elf_kcore_store_hdr() */
+
+/*****************************************************************************/
+/*
+ * read from the ELF header and then kernel memory
+ */
+static ssize_t read_kcore(struct file *file, char *buffer, size_t buflen, loff_t *fpos)
+{
+	ssize_t acc = 0;
+	unsigned long size, tsz;
+	size_t elf_buflen;
+	int num_vma;
+	unsigned long start;
+
+	read_lock(&vmlist_lock);
+	proc_root_kcore->size = size = get_kcore_size(&num_vma, &elf_buflen);
+	if (buflen == 0 || (unsigned long long)*fpos >= size) {
+		read_unlock(&vmlist_lock);
+		return 0;
+	}
+
+	/* trim buflen to not go beyond EOF */
+	if (buflen > size - *fpos)
+		buflen = size - *fpos;
+
+	/* construct an ELF core header if we'll need some of it */
+	if (*fpos < elf_buflen) {
+		char * elf_buf;
+
+		tsz = elf_buflen - *fpos;
+		if (buflen < tsz)
+			tsz = buflen;
+		elf_buf = kmalloc(elf_buflen, GFP_ATOMIC);
+		if (!elf_buf) {
+			read_unlock(&vmlist_lock);
+			return -ENOMEM;
+		}
+		memset(elf_buf, 0, elf_buflen);
+		elf_kcore_store_hdr(elf_buf, num_vma, elf_buflen);
+		read_unlock(&vmlist_lock);
+		if (copy_to_user(buffer, elf_buf + *fpos, tsz)) {
+			kfree(elf_buf);
+			return -EFAULT;
+		}
+		kfree(elf_buf);
+		buflen -= tsz;
+		*fpos += tsz;
+		buffer += tsz;
+		acc += tsz;
+
+		/* leave now if filled buffer already */
+		if (buflen == 0)
+			return acc;
+	} else
+		read_unlock(&vmlist_lock);
+
+	/* where page 0 not mapped, write zeros into buffer */
+#if defined (__i386__) || defined (__mc68000__) || defined(__x86_64__)
+	if (*fpos < PAGE_SIZE + elf_buflen) {
+		/* work out how much to clear */
+		tsz = PAGE_SIZE + elf_buflen - *fpos;
+		if (buflen < tsz)
+			tsz = buflen;
+
+		/* write zeros to buffer */
+		if (clear_user(buffer, tsz))
+			return -EFAULT;
+		buflen -= tsz;
+		*fpos += tsz;
+		buffer += tsz;
+		acc += tsz;
+
+		/* leave now if filled buffer already */
+		if (buflen == 0)
+			return tsz;
+	}
+#endif
+	
+	/*
+	 * Fill the remainder of the buffer from kernel VM space.
+	 * We said in the ELF header that the data which starts
+	 * at 'elf_buflen' is virtual address PAGE_OFFSET. --rmk
+	 */
+	start = PAGE_OFFSET + (*fpos - elf_buflen);
+	if ((tsz = (PAGE_SIZE - (start & ~PAGE_MASK))) > buflen)
+		tsz = buflen;
+	while (buflen) {
+		int err; 
+	
+		if ((start > PAGE_OFFSET) && (start < (unsigned long)high_memory)) {
+			if (kern_addr_valid(start)) {
+				err = copy_to_user(buffer, (char *)start, tsz);
+			} else {
+				err = clear_user(buffer, tsz);
+			}
+		} else {
+			char * elf_buf;
+			struct vm_struct *m;
+			unsigned long curstart = start;
+			unsigned long cursize = tsz;
+
+			elf_buf = kmalloc(tsz, GFP_KERNEL);
+			if (!elf_buf)
+				return -ENOMEM;
+			memset(elf_buf, 0, tsz);
+
+			read_lock(&vmlist_lock);
+			for (m=vmlist; m && cursize; m=m->next) {
+				unsigned long vmstart;
+				unsigned long vmsize;
+				unsigned long msize = m->size - PAGE_SIZE;
+
+				if (((unsigned long)m->addr + msize) < 
+								curstart)
+					continue;
+				if ((unsigned long)m->addr > (curstart + 
+								cursize))
+					break;
+				vmstart = (curstart < (unsigned long)m->addr ? 
+					(unsigned long)m->addr : curstart);
+				if (((unsigned long)m->addr + msize) > 
+							(curstart + cursize))
+					vmsize = curstart + cursize - vmstart;
+				else
+					vmsize = (unsigned long)m->addr + 
+							msize - vmstart;
+				curstart = vmstart + vmsize;
+				cursize -= vmsize;
+				/* don't dump ioremap'd stuff! (TA) */
+				if (m->flags & VM_IOREMAP)
+					continue;
+				memcpy(elf_buf + (vmstart - start),
+					(char *)vmstart, vmsize);
+			}
+			read_unlock(&vmlist_lock);
+			err = copy_to_user(buffer, elf_buf, tsz); 
+				kfree(elf_buf);
+			}
+		if (err)
+					return -EFAULT;
+		buflen -= tsz;
+		*fpos += tsz;
+		buffer += tsz;
+		acc += tsz;
+		start += tsz;
+		tsz = (buflen > PAGE_SIZE ? PAGE_SIZE : buflen);
+	}
+
+	return acc;
+}
+#endif /* CONFIG_KCORE_AOUT */
+
+static loff_t lseek_kcore(struct file * file, loff_t offset, int origin)
+{
+	switch (origin) {
+		case 2:
+			offset += file->f_dentry->d_inode->i_size;
+			break;
+		case 1:
+			offset += file->f_pos;
+	}
+	/* RED-PEN user can fake an error here by setting offset to >=-4095 && <0  */
+	file->f_pos = offset;
+	return offset;
+}
diff --git a/fs/proc/kmsg.c b/fs/proc/kmsg.c
new file mode 100644
index 00000000000000..69aeddd3f1667c
--- /dev/null
+++ b/fs/proc/kmsg.c
@@ -0,0 +1,52 @@
+/*
+ *  linux/fs/proc/kmsg.c
+ *
+ *  Copyright (C) 1992  by Linus Torvalds
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/poll.h>
+
+#include <asm/uaccess.h>
+#include <asm/io.h>
+
+extern wait_queue_head_t log_wait;
+
+extern int do_syslog(int type, char * bug, int count);
+
+static int kmsg_open(struct inode * inode, struct file * file)
+{
+	return do_syslog(1,NULL,0);
+}
+
+static int kmsg_release(struct inode * inode, struct file * file)
+{
+	(void) do_syslog(0,NULL,0);
+	return 0;
+}
+
+static ssize_t kmsg_read(struct file * file, char * buf,
+			 size_t count, loff_t *ppos)
+{
+	return do_syslog(2,buf,count);
+}
+
+static unsigned int kmsg_poll(struct file *file, poll_table * wait)
+{
+	poll_wait(file, &log_wait, wait);
+	if (do_syslog(9, 0, 0))
+		return POLLIN | POLLRDNORM;
+	return 0;
+}
+
+
+struct file_operations proc_kmsg_operations = {
+	read:		kmsg_read,
+	poll:		kmsg_poll,
+	open:		kmsg_open,
+	release:	kmsg_release,
+};
diff --git a/fs/proc/proc_devtree.c b/fs/proc/proc_devtree.c
new file mode 100644
index 00000000000000..45f60fa6d44501
--- /dev/null
+++ b/fs/proc/proc_devtree.c
@@ -0,0 +1,142 @@
+/*
+ * proc_devtree.c - handles /proc/device-tree
+ *
+ * Copyright 1997 Paul Mackerras
+ */
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/proc_fs.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <asm/prom.h>
+#include <asm/uaccess.h>
+
+static struct proc_dir_entry *proc_device_tree;
+
+/*
+ * Supply data on a read from /proc/device-tree/node/property.
+ */
+static int property_read_proc(char *page, char **start, off_t off,
+			      int count, int *eof, void *data)
+{
+	struct property *pp = data;
+	int n;
+
+	if (off >= pp->length) {
+		*eof = 1;
+		return 0;
+	}
+	n = pp->length - off;
+	if (n > count)
+		n = count;
+	else
+		*eof = 1;
+	memcpy(page, pp->value + off, n);
+	*start = page;
+	return n;
+}
+
+/*
+ * For a node with a name like "gc@10", we make symlinks called "gc"
+ * and "@10" to it.
+ */
+
+/*
+ * Process a node, adding entries for its children and its properties.
+ */
+static void add_node(struct device_node *np, struct proc_dir_entry *de)
+{
+	struct property *pp;
+	struct proc_dir_entry *ent;
+	struct device_node *child, *sib;
+	const char *p, *at;
+	int l;
+	struct proc_dir_entry *list, **lastp, *al;
+
+	lastp = &list;
+	for (pp = np->properties; pp != 0; pp = pp->next) {
+		/*
+		 * Unfortunately proc_register puts each new entry
+		 * at the beginning of the list.  So we rearrange them.
+		 */
+		ent = create_proc_read_entry(pp->name, strncmp(pp->name, "security-", 9) ?
+					     S_IRUGO : S_IRUSR, de, property_read_proc, pp);
+		if (ent == 0)
+			break;
+		if (!strncmp(pp->name, "security-", 9))
+		     ent->size = 0; /* don't leak number of password chars */
+		else
+		     ent->size = pp->length;
+		*lastp = ent;
+		lastp = &ent->next;
+	}
+	for (child = np->child; child != 0; child = child->sibling) {
+		p = strrchr(child->full_name, '/');
+		if (p == 0)
+			p = child->full_name;
+		else
+			++p;
+		/* chop off '@0' if the name ends with that */
+		l = strlen(p);
+		if (l > 2 && p[l-2] == '@' && p[l-1] == '0')
+			l -= 2;
+		ent = proc_mkdir(p, de);
+		if (ent == 0)
+			break;
+		*lastp = ent;
+		lastp = &ent->next;
+		add_node(child, ent);
+
+		/*
+		 * If we left the address part on the name, consider
+		 * adding symlinks from the name and address parts.
+		 */
+		if (p[l] != 0 || (at = strchr(p, '@')) == 0)
+			continue;
+
+		/*
+		 * If this is the first node with a given name property,
+		 * add a symlink with the name property as its name.
+		 */
+		for (sib = np->child; sib != child; sib = sib->sibling)
+			if (sib->name && strcmp(sib->name, child->name) == 0)
+				break;
+		if (sib == child && strncmp(p, child->name, l) != 0) {
+			al = proc_symlink(child->name, de, ent->name);
+			if (al == 0)
+				break;
+			*lastp = al;
+			lastp = &al->next;
+		}
+
+		/*
+		 * Add another directory with the @address part as its name.
+		 */
+		al = proc_symlink(at, de, ent->name);
+		if (al == 0)
+			break;
+		*lastp = al;
+		lastp = &al->next;
+	}
+	*lastp = 0;
+	de->subdir = list;
+}
+
+/*
+ * Called on initialization to set up the /proc/device-tree subtree
+ */
+void proc_device_tree_init(void)
+{
+	struct device_node *root;
+	if ( !have_of )
+		return;
+	proc_device_tree = proc_mkdir("device-tree", 0);
+	if (proc_device_tree == 0)
+		return;
+	root = find_path_device("/");
+	if (root == 0) {
+		printk(KERN_ERR "/proc/device-tree: can't find root\n");
+		return;
+	}
+	add_node(root, proc_device_tree);
+}
diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
new file mode 100644
index 00000000000000..033ed623a0d1a5
--- /dev/null
+++ b/fs/proc/proc_misc.c
@@ -0,0 +1,673 @@
+/*
+ *  linux/fs/proc/proc_misc.c
+ *
+ *  linux/fs/proc/array.c
+ *  Copyright (C) 1992  by Linus Torvalds
+ *  based on ideas by Darren Senn
+ *
+ *  This used to be the part of array.c. See the rest of history and credits
+ *  there. I took this into a separate file and switched the thing to generic
+ *  proc_file_inode_operations, leaving in array.c only per-process stuff.
+ *  Inumbers allocation made dynamic (via create_proc_entry()).  AV, May 1999.
+ *
+ * Changes:
+ * Fulton Green      :  Encapsulated position metric calculations.
+ *			<kernel@FultonGreen.com>
+ */
+
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/kernel_stat.h>
+#include <linux/tty.h>
+#include <linux/string.h>
+#include <linux/mman.h>
+#include <linux/proc_fs.h>
+#include <linux/ioport.h>
+#include <linux/config.h>
+#include <linux/mm.h>
+#include <linux/pagemap.h>
+#include <linux/swap.h>
+#include <linux/slab.h>
+#include <linux/smp.h>
+#include <linux/signal.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/smp_lock.h>
+#include <linux/seq_file.h>
+#include <linux/sysrq.h>
+
+#include <asm/uaccess.h>
+#include <asm/pgtable.h>
+#include <asm/io.h>
+
+#define LOAD_INT(x) ((x) >> FSHIFT)
+#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)
+/*
+ * Warning: stuff below (imported functions) assumes that its output will fit
+ * into one page. For some of those functions it may be wrong. Moreover, we
+ * have a way to deal with that gracefully. Right now I used straightforward
+ * wrappers, but this needs further analysis wrt potential overflows.
+ */
+extern int get_hardware_list(char *);
+extern int get_stram_list(char *);
+#ifdef CONFIG_MODULES
+extern int get_module_list(char *);
+#endif
+extern int get_device_list(char *);
+extern int get_filesystem_list(char *);
+extern int get_exec_domain_list(char *);
+#ifndef CONFIG_X86
+extern int get_irq_list(char *);
+#endif
+extern int get_dma_list(char *);
+extern int get_locks_status (char *, char **, off_t, int);
+extern int get_swaparea_info (char *);
+#ifdef CONFIG_SGI_DS1286
+extern int get_ds1286_status(char *);
+#endif
+
+void proc_sprintf(char *page, off_t *off, int *lenp, const char *format, ...)
+{
+	int len = *lenp;
+	va_list args;
+
+	/* try to only print whole lines */
+	if (len > PAGE_SIZE-512)
+		return;
+
+	va_start(args, format);
+	len += vsnprintf(page + len, PAGE_SIZE-len, format, args);
+	va_end(args);
+
+	if (len <= *off) {
+		*off -= len;
+		len = 0;
+	}
+
+	*lenp = len;
+}
+
+static int proc_calc_metrics(char *page, char **start, off_t off,
+				 int count, int *eof, int len)
+{
+	if (len <= off+count) *eof = 1;
+	*start = page + off;
+	len -= off;
+	if (len>count) len = count;
+	if (len<0) len = 0;
+	return len;
+}
+
+static int loadavg_read_proc(char *page, char **start, off_t off,
+				 int count, int *eof, void *data)
+{
+	int a, b, c;
+	int len;
+
+	a = avenrun[0] + (FIXED_1/200);
+	b = avenrun[1] + (FIXED_1/200);
+	c = avenrun[2] + (FIXED_1/200);
+	len = sprintf(page,"%d.%02d %d.%02d %d.%02d %d/%d %d\n",
+		LOAD_INT(a), LOAD_FRAC(a),
+		LOAD_INT(b), LOAD_FRAC(b),
+		LOAD_INT(c), LOAD_FRAC(c),
+		nr_running, nr_threads, last_pid);
+	return proc_calc_metrics(page, start, off, count, eof, len);
+}
+
+static int uptime_read_proc(char *page, char **start, off_t off,
+				 int count, int *eof, void *data)
+{
+	unsigned long uptime;
+	unsigned long idle;
+	int len;
+
+	uptime = jiffies;
+	idle = init_tasks[0]->times.tms_utime + init_tasks[0]->times.tms_stime;
+
+	/* The formula for the fraction parts really is ((t * 100) / HZ) % 100, but
+	   that would overflow about every five days at HZ == 100.
+	   Therefore the identity a = (a / b) * b + a % b is used so that it is
+	   calculated as (((t / HZ) * 100) + ((t % HZ) * 100) / HZ) % 100.
+	   The part in front of the '+' always evaluates as 0 (mod 100). All divisions
+	   in the above formulas are truncating. For HZ being a power of 10, the
+	   calculations simplify to the version in the #else part (if the printf
+	   format is adapted to the same number of digits as zeroes in HZ.
+	 */
+#if HZ!=100
+	len = sprintf(page,"%lu.%02lu %lu.%02lu\n",
+		uptime / HZ,
+		(((uptime % HZ) * 100) / HZ) % 100,
+		idle / HZ,
+		(((idle % HZ) * 100) / HZ) % 100);
+#else
+	len = sprintf(page,"%lu.%02lu %lu.%02lu\n",
+		uptime / HZ,
+		uptime % HZ,
+		idle / HZ,
+		idle % HZ);
+#endif
+	return proc_calc_metrics(page, start, off, count, eof, len);
+}
+
+static int meminfo_read_proc(char *page, char **start, off_t off,
+				 int count, int *eof, void *data)
+{
+	struct sysinfo i;
+	int len;
+	int pg_size ;
+
+/*
+ * display in kilobytes.
+ */
+#define K(x) ((x) << (PAGE_SHIFT - 10))
+#define B(x) ((unsigned long long)(x) << PAGE_SHIFT)
+	si_meminfo(&i);
+	si_swapinfo(&i);
+	pg_size = page_cache_size - i.bufferram;
+
+	len = sprintf(page, "        total:    used:    free:  shared: buffers:  cached:\n"
+		"Mem:  %8Lu %8Lu %8Lu %8Lu %8Lu %8Lu\n"
+		"Swap: %8Lu %8Lu %8Lu\n",
+		B(i.totalram), B(i.totalram-i.freeram), B(i.freeram),
+		B(i.sharedram), B(i.bufferram),
+		B(pg_size), B(i.totalswap),
+		B(i.totalswap-i.freeswap), B(i.freeswap));
+	/*
+	 * Tagged format, for easy grepping and expansion.
+	 * The above will go away eventually, once the tools
+	 * have been updated.
+	 */
+	len += sprintf(page+len,
+		"MemTotal:     %8lu kB\n"
+		"MemFree:      %8lu kB\n"
+		"MemShared:    %8lu kB\n"
+		"Buffers:      %8lu kB\n"
+		"Cached:       %8lu kB\n"
+		"SwapCached:   %8lu kB\n"
+		"Active:       %8u kB\n"
+		"Inactive:     %8u kB\n"
+		"HighTotal:    %8lu kB\n"
+		"HighFree:     %8lu kB\n"
+		"LowTotal:     %8lu kB\n"
+		"LowFree:      %8lu kB\n"
+		"SwapTotal:    %8lu kB\n"
+		"SwapFree:     %8lu kB\n",
+		K(i.totalram),
+		K(i.freeram),
+		K(i.sharedram),
+		K(i.bufferram),
+		K(pg_size - swapper_space.nrpages),
+		K(swapper_space.nrpages),
+		K(nr_active_pages),
+		K(nr_inactive_pages),
+		K(i.totalhigh),
+		K(i.freehigh),
+		K(i.totalram-i.totalhigh),
+		K(i.freeram-i.freehigh),
+		K(i.totalswap),
+		K(i.freeswap));
+
+	return proc_calc_metrics(page, start, off, count, eof, len);
+#undef B
+#undef K
+}
+
+static int version_read_proc(char *page, char **start, off_t off,
+				 int count, int *eof, void *data)
+{
+	extern char *linux_banner;
+	int len;
+
+	strcpy(page, linux_banner);
+	len = strlen(page);
+	return proc_calc_metrics(page, start, off, count, eof, len);
+}
+
+extern struct seq_operations cpuinfo_op;
+static int cpuinfo_open(struct inode *inode, struct file *file)
+{
+	return seq_open(file, &cpuinfo_op);
+}
+static struct file_operations proc_cpuinfo_operations = {
+	open:		cpuinfo_open,
+	read:		seq_read,
+	llseek:		seq_lseek,
+	release:	seq_release,
+};
+
+#ifdef CONFIG_PROC_HARDWARE
+static int hardware_read_proc(char *page, char **start, off_t off,
+				 int count, int *eof, void *data)
+{
+	int len = get_hardware_list(page);
+	return proc_calc_metrics(page, start, off, count, eof, len);
+}
+#endif
+
+#ifdef CONFIG_STRAM_PROC
+static int stram_read_proc(char *page, char **start, off_t off,
+				 int count, int *eof, void *data)
+{
+	int len = get_stram_list(page);
+	return proc_calc_metrics(page, start, off, count, eof, len);
+}
+#endif
+
+extern struct seq_operations partitions_op;
+static int partitions_open(struct inode *inode, struct file *file)
+{
+	return seq_open(file, &partitions_op);
+}
+static struct file_operations proc_partitions_operations = {
+	open:		partitions_open,
+	read:		seq_read,
+	llseek:		seq_lseek,
+	release:	seq_release,
+};
+
+#ifdef CONFIG_MODULES
+static int modules_read_proc(char *page, char **start, off_t off,
+				 int count, int *eof, void *data)
+{
+	int len = get_module_list(page);
+	return proc_calc_metrics(page, start, off, count, eof, len);
+}
+
+extern struct seq_operations ksyms_op;
+static int ksyms_open(struct inode *inode, struct file *file)
+{
+	return seq_open(file, &ksyms_op);
+}
+static struct file_operations proc_ksyms_operations = {
+	open:		ksyms_open,
+	read:		seq_read,
+	llseek:		seq_lseek,
+	release:	seq_release,
+};
+#endif
+
+extern struct seq_operations slabinfo_op;
+extern ssize_t slabinfo_write(struct file *, const char *, size_t, loff_t *);
+static int slabinfo_open(struct inode *inode, struct file *file)
+{
+	return seq_open(file, &slabinfo_op);
+}
+static struct file_operations proc_slabinfo_operations = {
+	open:		slabinfo_open,
+	read:		seq_read,
+	write:		slabinfo_write,
+	llseek:		seq_lseek,
+	release:	seq_release,
+};
+
+static int kstat_read_proc(char *page, char **start, off_t off,
+				 int count, int *eof, void *data)
+{
+	int i, len = 0;
+	extern unsigned long total_forks;
+	unsigned long jif = jiffies;
+	unsigned int sum = 0, user = 0, nice = 0, system = 0;
+	int major, disk;
+
+	for (i = 0 ; i < smp_num_cpus; i++) {
+		int cpu = cpu_logical_map(i), j;
+
+		user += kstat.per_cpu_user[cpu];
+		nice += kstat.per_cpu_nice[cpu];
+		system += kstat.per_cpu_system[cpu];
+#if !defined(CONFIG_ARCH_S390)
+		for (j = 0 ; j < NR_IRQS ; j++)
+			sum += kstat.irqs[cpu][j];
+#endif
+	}
+
+	proc_sprintf(page, &off, &len,
+		      "cpu  %u %u %u %lu\n", user, nice, system,
+		      jif * smp_num_cpus - (user + nice + system));
+	for (i = 0 ; i < smp_num_cpus; i++)
+		proc_sprintf(page, &off, &len,
+			"cpu%d %u %u %u %lu\n",
+			i,
+			kstat.per_cpu_user[cpu_logical_map(i)],
+			kstat.per_cpu_nice[cpu_logical_map(i)],
+			kstat.per_cpu_system[cpu_logical_map(i)],
+			jif - (  kstat.per_cpu_user[cpu_logical_map(i)] \
+				   + kstat.per_cpu_nice[cpu_logical_map(i)] \
+				   + kstat.per_cpu_system[cpu_logical_map(i)]));
+	proc_sprintf(page, &off, &len,
+		"page %u %u\n"
+		"swap %u %u\n"
+		"intr %u",
+			kstat.pgpgin >> 1,
+			kstat.pgpgout >> 1,
+			kstat.pswpin,
+			kstat.pswpout,
+			sum
+	);
+#if !defined(CONFIG_ARCH_S390) && !defined(CONFIG_ALPHA)
+	for (i = 0 ; i < NR_IRQS ; i++)
+		proc_sprintf(page, &off, &len,
+			     " %u", kstat_irqs(i));
+#endif
+
+	proc_sprintf(page, &off, &len, "\ndisk_io: ");
+
+	for (major = 0; major < DK_MAX_MAJOR; major++) {
+		for (disk = 0; disk < DK_MAX_DISK; disk++) {
+			int active = kstat.dk_drive[major][disk] +
+				kstat.dk_drive_rblk[major][disk] +
+				kstat.dk_drive_wblk[major][disk];
+			if (active)
+				proc_sprintf(page, &off, &len,
+					"(%u,%u):(%u,%u,%u,%u,%u) ",
+					major, disk,
+					kstat.dk_drive[major][disk],
+					kstat.dk_drive_rio[major][disk],
+					kstat.dk_drive_rblk[major][disk],
+					kstat.dk_drive_wio[major][disk],
+					kstat.dk_drive_wblk[major][disk]
+			);
+		}
+	}
+
+	proc_sprintf(page, &off, &len,
+		"\nctxt %u\n"
+		"btime %lu\n"
+		"processes %lu\n",
+		kstat.context_swtch,
+		xtime.tv_sec - jif / HZ,
+		total_forks);
+
+	return proc_calc_metrics(page, start, off, count, eof, len);
+}
+
+static int devices_read_proc(char *page, char **start, off_t off,
+				 int count, int *eof, void *data)
+{
+	int len = get_device_list(page);
+	return proc_calc_metrics(page, start, off, count, eof, len);
+}
+
+#ifndef CONFIG_X86
+#if !defined(CONFIG_ARCH_S390)
+static int interrupts_read_proc(char *page, char **start, off_t off,
+				 int count, int *eof, void *data)
+{
+	int len = get_irq_list(page);
+	return proc_calc_metrics(page, start, off, count, eof, len);
+}
+#endif
+
+#else /* !CONFIG_X86 */
+
+extern int show_interrupts(struct seq_file *p, void *v);
+static int interrupts_open(struct inode *inode, struct file *file)
+{
+	unsigned size = PAGE_SIZE * (1 + smp_num_cpus / 8);
+	char *buf = kmalloc(size, GFP_KERNEL);
+	struct seq_file *m;
+	int res;
+
+	if (!buf)
+		return -ENOMEM;
+	res = single_open(file, show_interrupts, NULL);
+	if (!res) {
+		m = file->private_data;
+		m->buf = buf;
+		m->size = size;
+	} else
+		kfree(buf);
+	return res;
+}
+static struct file_operations proc_interrupts_operations = {
+	.open		= interrupts_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+#endif /* !CONFIG_X86 */
+
+extern struct file_operations proc_ioports_operations;
+extern struct file_operations proc_iomem_operations;
+
+static int filesystems_read_proc(char *page, char **start, off_t off,
+				 int count, int *eof, void *data)
+{
+	int len = get_filesystem_list(page);
+	return proc_calc_metrics(page, start, off, count, eof, len);
+}
+
+static int dma_read_proc(char *page, char **start, off_t off,
+				 int count, int *eof, void *data)
+{
+	int len = get_dma_list(page);
+	return proc_calc_metrics(page, start, off, count, eof, len);
+}
+
+static int cmdline_read_proc(char *page, char **start, off_t off,
+				 int count, int *eof, void *data)
+{
+	extern char saved_command_line[];
+	int len = 0;
+
+	proc_sprintf(page, &off, &len, "%s\n", saved_command_line);
+	return proc_calc_metrics(page, start, off, count, eof, len);
+}
+
+#ifdef CONFIG_SGI_DS1286
+static int ds1286_read_proc(char *page, char **start, off_t off,
+				 int count, int *eof, void *data)
+{
+	int len = get_ds1286_status(page);
+	return proc_calc_metrics(page, start, off, count, eof, len);
+}
+#endif
+
+static int locks_read_proc(char *page, char **start, off_t off,
+				 int count, int *eof, void *data)
+{
+	int len;
+	lock_kernel();
+	len = get_locks_status(page, start, off, count);
+	unlock_kernel();
+	if (len < count) *eof = 1;
+	return len;
+}
+
+static int execdomains_read_proc(char *page, char **start, off_t off,
+				 int count, int *eof, void *data)
+{
+	int len = get_exec_domain_list(page);
+	return proc_calc_metrics(page, start, off, count, eof, len);
+}
+
+static int swaps_read_proc(char *page, char **start, off_t off,
+				 int count, int *eof, void *data)
+{
+	int len = get_swaparea_info(page);
+	return proc_calc_metrics(page, start, off, count, eof, len);
+}
+
+/*
+ * This function accesses profiling information. The returned data is
+ * binary: the sampling step and the actual contents of the profile
+ * buffer. Use of the program readprofile is recommended in order to
+ * get meaningful info out of these data.
+ */
+static ssize_t read_profile(struct file *file, char *buf,
+			    size_t count, loff_t *ppos)
+{
+	loff_t n = *ppos;
+	unsigned p = n;
+	ssize_t read;
+	char * pnt;
+	unsigned int sample_step = 1 << prof_shift;
+
+	if (p != n || p >= (prof_len+1)*sizeof(unsigned int))
+		return 0;
+	if (count > (prof_len+1)*sizeof(unsigned int) - p)
+		count = (prof_len+1)*sizeof(unsigned int) - p;
+	read = 0;
+
+	while (p < sizeof(unsigned int) && count > 0) {
+		put_user(*((char *)(&sample_step)+p),buf);
+		buf++; p++; count--; read++;
+	}
+	pnt = (char *)prof_buffer + p - sizeof(unsigned int);
+	if (copy_to_user(buf,(void *)pnt,count))
+		return -EFAULT;
+	read += count;
+	*ppos = n + read;
+	return read;
+}
+
+/*
+ * Writing to /proc/profile resets the counters
+ *
+ * Writing a 'profiling multiplier' value into it also re-sets the profiling
+ * interrupt frequency, on architectures that support this.
+ */
+static ssize_t write_profile(struct file * file, const char * buf,
+			     size_t count, loff_t *ppos)
+{
+#ifdef CONFIG_SMP
+	extern int setup_profiling_timer (unsigned int multiplier);
+
+	if (count==sizeof(int)) {
+		unsigned int multiplier;
+
+		if (copy_from_user(&multiplier, buf, sizeof(int)))
+			return -EFAULT;
+
+		if (setup_profiling_timer(multiplier))
+			return -EINVAL;
+	}
+#endif
+
+	memset(prof_buffer, 0, prof_len * sizeof(*prof_buffer));
+	return count;
+}
+
+static struct file_operations proc_profile_operations = {
+	read:		read_profile,
+	write:		write_profile,
+};
+
+#ifdef CONFIG_MAGIC_SYSRQ
+/*
+ * writing 'C' to /proc/sysrq-trigger is like sysrq-C
+ */
+static ssize_t write_sysrq_trigger(struct file *file, const char *buf,
+				     size_t count, loff_t *ppos)
+{
+	if (count) {
+		char c;
+
+		if (get_user(c, buf))
+			return -EFAULT;
+		handle_sysrq(c, NULL, NULL, NULL);
+	}
+	return count;
+}
+
+static struct file_operations proc_sysrq_trigger_operations = {
+	.write		= write_sysrq_trigger,
+};
+#endif
+
+struct proc_dir_entry *proc_root_kcore;
+
+static void create_seq_entry(char *name, mode_t mode, struct file_operations *f)
+{
+	struct proc_dir_entry *entry;
+	entry = create_proc_entry(name, mode, NULL);
+	if (entry)
+		entry->proc_fops = f;
+}
+
+void __init proc_misc_init(void)
+{
+	struct proc_dir_entry *entry;
+	static struct {
+		char *name;
+		int (*read_proc)(char*,char**,off_t,int,int*,void*);
+	} *p, simple_ones[] = {
+		{"loadavg",     loadavg_read_proc},
+		{"uptime",	uptime_read_proc},
+		{"meminfo",	meminfo_read_proc},
+		{"version",	version_read_proc},
+#ifdef CONFIG_PROC_HARDWARE
+		{"hardware",	hardware_read_proc},
+#endif
+#ifdef CONFIG_STRAM_PROC
+		{"stram",	stram_read_proc},
+#endif
+#ifdef CONFIG_MODULES
+		{"modules",	modules_read_proc},
+#endif
+		{"stat",	kstat_read_proc},
+		{"devices",	devices_read_proc},
+#if !defined(CONFIG_ARCH_S390) && !defined(CONFIG_X86)
+		{"interrupts",	interrupts_read_proc},
+#endif
+		{"filesystems",	filesystems_read_proc},
+		{"dma",		dma_read_proc},
+		{"cmdline",	cmdline_read_proc},
+#ifdef CONFIG_SGI_DS1286
+		{"rtc",		ds1286_read_proc},
+#endif
+		{"locks",	locks_read_proc},
+		{"swaps",	swaps_read_proc},
+		{"execdomains",	execdomains_read_proc},
+		{NULL,}
+	};
+	for (p = simple_ones; p->name; p++)
+		create_proc_read_entry(p->name, 0, NULL, p->read_proc, NULL);
+
+	proc_symlink("mounts", NULL, "self/mounts");
+
+	/* And now for trickier ones */
+	entry = create_proc_entry("kmsg", S_IRUSR, &proc_root);
+	if (entry)
+		entry->proc_fops = &proc_kmsg_operations;
+	create_seq_entry("cpuinfo", 0, &proc_cpuinfo_operations);
+#if defined(CONFIG_X86)
+	create_seq_entry("interrupts", 0, &proc_interrupts_operations);
+#endif
+	create_seq_entry("ioports", 0, &proc_ioports_operations);
+	create_seq_entry("iomem", 0, &proc_iomem_operations);
+	create_seq_entry("partitions", 0, &proc_partitions_operations);
+	create_seq_entry("slabinfo",S_IWUSR|S_IRUGO,&proc_slabinfo_operations);
+#ifdef CONFIG_MODULES
+	create_seq_entry("ksyms", 0, &proc_ksyms_operations);
+#endif
+	proc_root_kcore = create_proc_entry("kcore", S_IRUSR, NULL);
+	if (proc_root_kcore) {
+		proc_root_kcore->proc_fops = &proc_kcore_operations;
+		proc_root_kcore->size =
+				(size_t)high_memory - PAGE_OFFSET + PAGE_SIZE;
+	}
+	if (prof_shift) {
+		entry = create_proc_entry("profile", S_IWUSR | S_IRUGO, NULL);
+		if (entry) {
+			entry->proc_fops = &proc_profile_operations;
+			entry->size = (1+prof_len) * sizeof(unsigned int);
+		}
+	}
+#ifdef CONFIG_MAGIC_SYSRQ
+	entry = create_proc_entry("sysrq-trigger", S_IWUSR, NULL);
+	if (entry)
+		entry->proc_fops = &proc_sysrq_trigger_operations;
+#endif
+#ifdef CONFIG_PPC32
+	{
+		extern struct file_operations ppc_htab_operations;
+		entry = create_proc_entry("ppc_htab", S_IRUGO|S_IWUSR, NULL);
+		if (entry)
+			entry->proc_fops = &ppc_htab_operations;
+	}
+#endif
+}
diff --git a/fs/proc/proc_tty.c b/fs/proc/proc_tty.c
new file mode 100644
index 00000000000000..efebc640198a59
--- /dev/null
+++ b/fs/proc/proc_tty.c
@@ -0,0 +1,188 @@
+/*
+ * proc_tty.c -- handles /proc/tty
+ *
+ * Copyright 1997, Theodore Ts'o
+ */
+
+#include <asm/uaccess.h>
+
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/proc_fs.h>
+#include <linux/stat.h>
+#include <linux/tty.h>
+#include <asm/bitops.h>
+
+extern struct tty_driver *tty_drivers;	/* linked list of tty drivers */
+
+static int tty_drivers_read_proc(char *page, char **start, off_t off,
+				 int count, int *eof, void *data);
+static int tty_ldiscs_read_proc(char *page, char **start, off_t off,
+				int count, int *eof, void *data);
+
+/*
+ * The /proc/tty directory inodes...
+ */
+static struct proc_dir_entry *proc_tty_ldisc, *proc_tty_driver;
+
+/*
+ * This is the handler for /proc/tty/drivers
+ */
+static int tty_drivers_read_proc(char *page, char **start, off_t off,
+				 int count, int *eof, void *data)
+{
+	int	len = 0;
+	off_t	begin = 0;
+	struct tty_driver *p;
+	char	range[20], deftype[20];
+	char	*type;
+
+	for (p = tty_drivers; p; p = p->next) {
+		if (p->num > 1)
+			sprintf(range, "%d-%d", p->minor_start,
+				p->minor_start + p->num - 1);
+		else
+			sprintf(range, "%d", p->minor_start);
+		switch (p->type) {
+		case TTY_DRIVER_TYPE_SYSTEM:
+			if (p->subtype == SYSTEM_TYPE_TTY)
+				type = "system:/dev/tty";
+			else if (p->subtype == SYSTEM_TYPE_SYSCONS)
+				type = "system:console";
+			else if (p->subtype == SYSTEM_TYPE_CONSOLE)
+				type = "system:vtmaster";
+			else
+				type = "system";
+			break;
+		case TTY_DRIVER_TYPE_CONSOLE:
+			type = "console";
+			break;
+		case TTY_DRIVER_TYPE_SERIAL:
+			if (p->subtype == 2)
+				type = "serial:callout";
+			else
+				type = "serial";
+			break;
+		case TTY_DRIVER_TYPE_PTY:
+			if (p->subtype == PTY_TYPE_MASTER)
+				type = "pty:master";
+			else if (p->subtype == PTY_TYPE_SLAVE)
+				type = "pty:slave";
+			else
+				type = "pty";
+			break;
+		default:
+			sprintf(deftype, "type:%d.%d", p->type, p->subtype);
+			type = deftype;
+			break;
+		}
+		len += sprintf(page+len, "%-20s /dev/%-8s %3d %7s %s\n",
+			       p->driver_name ? p->driver_name : "unknown",
+			       p->name, p->major, range, type);
+		if (len+begin > off+count)
+			break;
+		if (len+begin < off) {
+			begin += len;
+			len = 0;
+		}
+	}
+	if (!p)
+		*eof = 1;
+	if (off >= len+begin)
+		return 0;
+	*start = page + (off-begin);
+	return ((count < begin+len-off) ? count : begin+len-off);
+}
+
+/*
+ * This is the handler for /proc/tty/ldiscs
+ */
+static int tty_ldiscs_read_proc(char *page, char **start, off_t off,
+				int count, int *eof, void *data)
+{
+	int	i;
+	int	len = 0;
+	off_t	begin = 0;
+	struct tty_ldisc *ld;
+	
+	for (i=0; i < NR_LDISCS; i++) {
+		ld = tty_ldisc_get(i);
+		if (ld == NULL)
+			continue;
+		len += sprintf(page+len, "%-10s %2d\n",
+			       ld->name ? ld->name : "???", i);
+		tty_ldisc_put(i);
+		if (len+begin > off+count)
+			break;
+		if (len+begin < off) {
+			begin += len;
+			len = 0;
+		}
+	}
+	if (i >= NR_LDISCS)
+		*eof = 1;
+	if (off >= len+begin)
+		return 0;
+	*start = page + (off-begin);
+	return ((count < begin+len-off) ? count : begin+len-off);
+}
+
+/*
+ * This function is called by tty_register_driver() to handle
+ * registering the driver's /proc handler into /proc/tty/driver/<foo>
+ */
+void proc_tty_register_driver(struct tty_driver *driver)
+{
+	struct proc_dir_entry *ent;
+		
+	if ((!driver->read_proc && !driver->write_proc) ||
+	    !driver->driver_name ||
+	    driver->proc_entry)
+		return;
+
+	ent = create_proc_entry(driver->driver_name, 0, proc_tty_driver);
+	if (!ent)
+		return;
+	ent->read_proc = driver->read_proc;
+	ent->write_proc = driver->write_proc;
+	ent->data = driver;
+
+	driver->proc_entry = ent;
+}
+
+/*
+ * This function is called by tty_unregister_driver()
+ */
+void proc_tty_unregister_driver(struct tty_driver *driver)
+{
+	struct proc_dir_entry *ent;
+
+	ent = driver->proc_entry;
+	if (!ent)
+		return;
+		
+	remove_proc_entry(driver->driver_name, proc_tty_driver);
+	
+	driver->proc_entry = 0;
+}
+
+/*
+ * Called by proc_root_init() to initialize the /proc/tty subtree
+ */
+void __init proc_tty_init(void)
+{
+	if (!proc_mkdir("tty", 0))
+		return;
+	proc_tty_ldisc = proc_mkdir("tty/ldisc", 0);
+	/*
+	 * /proc/tty/driver/serial reveals the exact character counts for
+	 * serial links which is just too easy to abuse for inferring
+	 * password lengths and inter-keystroke timings during password
+	 * entry.
+	 */
+	proc_tty_driver = proc_mkdir_mode("tty/driver", S_IRUSR | S_IXUSR, 0);
+
+	create_proc_read_entry("tty/ldiscs", 0, 0, tty_ldiscs_read_proc,NULL);
+	create_proc_read_entry("tty/drivers", 0, 0, tty_drivers_read_proc,NULL);
+}
diff --git a/fs/proc/root.c b/fs/proc/root.c
new file mode 100644
index 00000000000000..92260bdcb7fc10
--- /dev/null
+++ b/fs/proc/root.c
@@ -0,0 +1,150 @@
+/*
+ *  linux/fs/proc/root.c
+ *
+ *  Copyright (C) 1991, 1992 Linus Torvalds
+ *
+ *  proc root directory handling functions
+ */
+
+#include <asm/uaccess.h>
+
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/proc_fs.h>
+#include <linux/stat.h>
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <asm/bitops.h>
+
+struct proc_dir_entry *proc_net, *proc_net_stat, *proc_bus, *proc_root_fs, *proc_root_driver;
+
+#ifdef CONFIG_SYSCTL
+struct proc_dir_entry *proc_sys_root;
+#endif
+
+static DECLARE_FSTYPE(proc_fs_type, "proc", proc_read_super, FS_SINGLE);
+
+void __init proc_root_init(void)
+{
+	int err = register_filesystem(&proc_fs_type);
+	if (err)
+		return;
+	proc_mnt = kern_mount(&proc_fs_type);
+	err = PTR_ERR(proc_mnt);
+	if (IS_ERR(proc_mnt)) {
+		unregister_filesystem(&proc_fs_type);
+		return;
+	}
+	proc_misc_init();
+	proc_net = proc_mkdir("net", 0);
+	proc_net_stat = proc_mkdir("net/stat", NULL);
+
+#ifdef CONFIG_SYSVIPC
+	proc_mkdir("sysvipc", 0);
+#endif
+#ifdef CONFIG_SYSCTL
+	proc_sys_root = proc_mkdir("sys", 0);
+#endif
+#if defined(CONFIG_BINFMT_MISC) || defined(CONFIG_BINFMT_MISC_MODULE)
+	proc_mkdir("sys/fs", 0);
+	proc_mkdir("sys/fs/binfmt_misc", 0);
+#endif
+	proc_root_fs = proc_mkdir("fs", 0);
+	proc_root_driver = proc_mkdir("driver", 0);
+#if defined(CONFIG_SUN_OPENPROMFS) || defined(CONFIG_SUN_OPENPROMFS_MODULE)
+	/* just give it a mountpoint */
+	proc_mkdir("openprom", 0);
+#endif
+	proc_tty_init();
+#ifdef CONFIG_PROC_DEVICETREE
+	proc_device_tree_init();
+#endif
+#ifdef CONFIG_PPC_ISERIES
+	iSeries_proc_create();
+#endif
+#ifdef CONFIG_PPC64
+	proc_ppc64_init(); 
+#endif
+#ifdef CONFIG_PPC_RTAS
+	proc_rtas_init();
+#endif
+	proc_bus = proc_mkdir("bus", 0);
+}
+
+static struct dentry *proc_root_lookup(struct inode * dir, struct dentry * dentry)
+{
+	if (dir->i_ino == PROC_ROOT_INO) { /* check for safety... */
+		int nlink = proc_root.nlink;
+
+		nlink += nr_threads;
+
+		dir->i_nlink = nlink;
+	}
+
+	if (!proc_lookup(dir, dentry))
+		return NULL;
+	
+	return proc_pid_lookup(dir, dentry);
+}
+
+static int proc_root_readdir(struct file * filp,
+	void * dirent, filldir_t filldir)
+{
+	unsigned int nr = filp->f_pos;
+
+	if (nr < FIRST_PROCESS_ENTRY) {
+		int error = proc_readdir(filp, dirent, filldir);
+		if (error <= 0)
+			return error;
+		filp->f_pos = FIRST_PROCESS_ENTRY;
+	}
+
+	return proc_pid_readdir(filp, dirent, filldir);
+}
+
+/*
+ * The root /proc directory is special, as it has the
+ * <pid> directories. Thus we don't use the generic
+ * directory handling functions for that..
+ */
+static struct file_operations proc_root_operations = {
+	read:		 generic_read_dir,
+	readdir:	 proc_root_readdir,
+};
+
+/*
+ * proc root can do almost nothing..
+ */
+static struct inode_operations proc_root_inode_operations = {
+	lookup:		proc_root_lookup,
+};
+
+/*
+ * This is the root "inode" in the /proc tree..
+ */
+struct proc_dir_entry proc_root = {
+	low_ino:	PROC_ROOT_INO, 
+	namelen:	5, 
+	name:		"/proc",
+	mode:		S_IFDIR | S_IRUGO | S_IXUGO, 
+	nlink:		2, 
+	proc_iops:	&proc_root_inode_operations, 
+	proc_fops:	&proc_root_operations,
+	parent:		&proc_root,
+};
+
+#ifdef CONFIG_SYSCTL
+EXPORT_SYMBOL(proc_sys_root);
+#endif
+EXPORT_SYMBOL(proc_symlink);
+EXPORT_SYMBOL(proc_mknod);
+EXPORT_SYMBOL(proc_mkdir);
+EXPORT_SYMBOL(create_proc_entry);
+EXPORT_SYMBOL(remove_proc_entry);
+EXPORT_SYMBOL(proc_root);
+EXPORT_SYMBOL(proc_root_fs);
+EXPORT_SYMBOL(proc_net);
+EXPORT_SYMBOL(proc_net_stat);
+EXPORT_SYMBOL(proc_bus);
+EXPORT_SYMBOL(proc_root_driver);
diff --git a/fs/qnx4/Makefile b/fs/qnx4/Makefile
new file mode 100644
index 00000000000000..a3a3c5a7da14de
--- /dev/null
+++ b/fs/qnx4/Makefile
@@ -0,0 +1,15 @@
+#
+# Makefile for the linux qnx4-filesystem routines.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile...
+
+O_TARGET := qnx4.o
+
+obj-y   := inode.o dir.o namei.o file.o bitmap.o truncate.o fsync.o
+obj-m   := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/qnx4/README b/fs/qnx4/README
new file mode 100644
index 00000000000000..1f1e320d91da8f
--- /dev/null
+++ b/fs/qnx4/README
@@ -0,0 +1,9 @@
+
+  This is a snapshot of the QNX4 filesystem for Linux.
+  Please send diffs and remarks to <al@alarsen.net> .
+  
+Credits :
+
+Richard "Scuba" A. Frowijn     <scuba@wxs.nl>
+Frank "Jedi/Sector One" Denis  <j@pureftpd.org>
+Anders Larsen                  <al@alarsen.net> (Maintainer)
diff --git a/fs/qnx4/bitmap.c b/fs/qnx4/bitmap.c
new file mode 100644
index 00000000000000..f544a436c822f3
--- /dev/null
+++ b/fs/qnx4/bitmap.c
@@ -0,0 +1,164 @@
+/*
+ * QNX4 file system, Linux implementation.
+ *
+ * Version : 0.2.1
+ *
+ * Using parts of the xiafs filesystem.
+ *
+ * History :
+ *
+ * 28-05-1998 by Richard Frowijn : first release.
+ * 20-06-1998 by Frank Denis : basic optimisations.
+ * 25-06-1998 by Frank Denis : qnx4_is_free, qnx4_set_bitmap, qnx4_bmap .
+ * 28-06-1998 by Frank Denis : qnx4_free_inode (to be fixed) .
+ */
+
+#include <linux/config.h>
+#include <linux/sched.h>
+#include <linux/qnx4_fs.h>
+#include <linux/stat.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+
+#include <asm/bitops.h>
+
+int qnx4_new_block(struct super_block *sb)
+{
+	return 0;
+}
+
+void count_bits(const register char *bmPart, register int size,
+		int *const tf)
+{
+	char b;
+	int tot = *tf;
+
+	if (size > QNX4_BLOCK_SIZE) {
+		size = QNX4_BLOCK_SIZE;
+	}
+	do {
+		b = *bmPart++;
+		if ((b & 1) == 0)
+			tot++;
+		if ((b & 2) == 0)
+			tot++;
+		if ((b & 4) == 0)
+			tot++;
+		if ((b & 8) == 0)
+			tot++;
+		if ((b & 16) == 0)
+			tot++;
+		if ((b & 32) == 0)
+			tot++;
+		if ((b & 64) == 0)
+			tot++;
+		if ((b & 128) == 0)
+			tot++;
+		size--;
+	} while (size != 0);
+	*tf = tot;
+}
+
+unsigned long qnx4_count_free_blocks(struct super_block *sb)
+{
+	int start = le32_to_cpu(sb->u.qnx4_sb.BitMap->di_first_xtnt.xtnt_blk) - 1;
+	int total = 0;
+	int total_free = 0;
+	int offset = 0;
+	int size = le32_to_cpu(sb->u.qnx4_sb.BitMap->di_size);
+	struct buffer_head *bh;
+
+	while (total < size) {
+		if ((bh = sb_bread(sb, start + offset)) == NULL) {
+			printk("qnx4: I/O error in counting free blocks\n");
+			break;
+		}
+		count_bits(bh->b_data, size - total, &total_free);
+		brelse(bh);
+		total += QNX4_BLOCK_SIZE;
+		offset++;
+	}
+
+	return total_free;
+}
+
+#ifdef CONFIG_QNX4FS_RW
+
+int qnx4_is_free(struct super_block *sb, long block)
+{
+	int start = le32_to_cpu(sb->u.qnx4_sb.BitMap->di_first_xtnt.xtnt_blk) - 1;
+	int size = le32_to_cpu(sb->u.qnx4_sb.BitMap->di_size);
+	struct buffer_head *bh;
+	const char *g;
+	int ret = -EIO;
+
+	start += block / (QNX4_BLOCK_SIZE * 8);
+	QNX4DEBUG(("qnx4: is_free requesting block [%lu], bitmap in block [%lu]\n",
+		   (unsigned long) block, (unsigned long) start));
+	(void) size;		/* CHECKME */
+	bh = sb_bread(sb, start);
+	if (bh == NULL) {
+		return -EIO;
+	}
+	g = bh->b_data + (block % QNX4_BLOCK_SIZE);
+	if (((*g) & (1 << (block % 8))) == 0) {
+		QNX4DEBUG(("qnx4: is_free -> block is free\n"));
+		ret = 1;
+	} else {
+		QNX4DEBUG(("qnx4: is_free -> block is busy\n"));
+		ret = 0;
+	}
+	brelse(bh);
+
+	return ret;
+}
+
+int qnx4_set_bitmap(struct super_block *sb, long block, int busy)
+{
+	int start = le32_to_cpu(sb->u.qnx4_sb.BitMap->di_first_xtnt.xtnt_blk) - 1;
+	int size = le32_to_cpu(sb->u.qnx4_sb.BitMap->di_size);
+	struct buffer_head *bh;
+	char *g;
+
+	start += block / (QNX4_BLOCK_SIZE * 8);
+	QNX4DEBUG(("qnx4: set_bitmap requesting block [%lu], bitmap in block [%lu]\n",
+		   (unsigned long) block, (unsigned long) start));
+	(void) size;		/* CHECKME */
+	bh = sb_bread(sb, start);
+	if (bh == NULL) {
+		return -EIO;
+	}
+	g = bh->b_data + (block % QNX4_BLOCK_SIZE);
+	if (busy == 0) {
+		(*g) &= ~(1 << (block % 8));
+	} else {
+		(*g) |= (1 << (block % 8));
+	}
+	mark_buffer_dirty(bh);
+	brelse(bh);
+
+	return 0;
+}
+
+static void qnx4_clear_inode(struct inode *inode)
+{
+	struct qnx4_inode_info *qnx4_ino = &inode->u.qnx4_i;
+
+	memset(qnx4_ino->i_reserved, 0, sizeof qnx4_ino->i_reserved);
+	qnx4_ino->i_size = 0;
+	qnx4_ino->i_num_xtnts = 0;
+	qnx4_ino->i_mode = 0;
+	qnx4_ino->i_status = 0;
+}
+
+void qnx4_free_inode(struct inode *inode)
+{
+	if (inode->i_ino < 1) {
+		printk("free_inode: inode 0 or nonexistent inode\n");
+		return;
+	}
+	qnx4_clear_inode(inode);
+	clear_inode(inode);
+}
+
+#endif
diff --git a/fs/qnx4/dir.c b/fs/qnx4/dir.c
new file mode 100644
index 00000000000000..49df47d8f3ee88
--- /dev/null
+++ b/fs/qnx4/dir.c
@@ -0,0 +1,96 @@
+/*
+ * QNX4 file system, Linux implementation.
+ *
+ * Version : 0.2.1
+ *
+ * Using parts of the xiafs filesystem.
+ *
+ * History :
+ *
+ * 28-05-1998 by Richard Frowijn : first release.
+ * 20-06-1998 by Frank Denis : Linux 2.1.99+ & dcache support.
+ */
+
+#include <linux/config.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/qnx4_fs.h>
+#include <linux/stat.h>
+
+#include <asm/segment.h>
+
+static int qnx4_readdir(struct file *filp, void *dirent, filldir_t filldir)
+{
+	struct inode *inode = filp->f_dentry->d_inode;
+	unsigned int offset;
+	struct buffer_head *bh;
+	struct qnx4_inode_entry *de;
+	struct qnx4_link_info *le;
+	unsigned long blknum;
+	int ix, ino;
+	int size;
+
+	QNX4DEBUG(("qnx4_readdir:i_size = %ld\n", (long) inode->i_size));
+	QNX4DEBUG(("filp->f_pos         = %ld\n", (long) filp->f_pos));
+
+	while (filp->f_pos < inode->i_size) {
+		blknum = qnx4_block_map( inode, filp->f_pos >> QNX4_BLOCK_SIZE_BITS );
+		bh = sb_bread(inode->i_sb, blknum);
+		if(bh==NULL) {
+			printk(KERN_ERR "qnx4_readdir: bread failed (%ld)\n", blknum);
+			break;
+		}
+		ix = (int)(filp->f_pos >> QNX4_DIR_ENTRY_SIZE_BITS) % QNX4_INODES_PER_BLOCK;
+		while (ix < QNX4_INODES_PER_BLOCK) {
+			offset = ix * QNX4_DIR_ENTRY_SIZE;
+			de = (struct qnx4_inode_entry *) (bh->b_data + offset);
+			size = strlen(de->di_fname);
+			if (size) {
+				if ( !( de->di_status & QNX4_FILE_LINK ) && size > QNX4_SHORT_NAME_MAX )
+					size = QNX4_SHORT_NAME_MAX;
+				else if ( size > QNX4_NAME_MAX )
+					size = QNX4_NAME_MAX;
+
+				if ( ( de->di_status & (QNX4_FILE_USED|QNX4_FILE_LINK) ) != 0 ) {
+					QNX4DEBUG(("qnx4_readdir:%.*s\n", size, de->di_fname));
+					if ( ( de->di_status & QNX4_FILE_LINK ) == 0 )
+						ino = blknum * QNX4_INODES_PER_BLOCK + ix - 1;
+					else {
+						le  = (struct qnx4_link_info*)de;
+						ino = ( le->dl_inode_blk - 1 ) *
+							QNX4_INODES_PER_BLOCK +
+							le->dl_inode_ndx;
+					}
+					if (filldir(dirent, de->di_fname, size, filp->f_pos, ino, DT_UNKNOWN) < 0) {
+						brelse(bh);
+						return 0;
+					}
+				}
+			}
+			ix++;
+			filp->f_pos += QNX4_DIR_ENTRY_SIZE;
+		}
+		brelse(bh);
+	}
+	UPDATE_ATIME(inode);
+
+	return 0;
+}
+
+struct file_operations qnx4_dir_operations =
+{
+	read:		generic_read_dir,
+	readdir:	qnx4_readdir,
+	fsync:		file_fsync,
+};
+
+struct inode_operations qnx4_dir_inode_operations =
+{
+	lookup:		qnx4_lookup,
+#ifdef CONFIG_QNX4FS_RW
+	create:		qnx4_create,
+	unlink:		qnx4_unlink,
+	rmdir:		qnx4_rmdir,
+#endif
+};
diff --git a/fs/qnx4/file.c b/fs/qnx4/file.c
new file mode 100644
index 00000000000000..ab5856ace4f2ad
--- /dev/null
+++ b/fs/qnx4/file.c
@@ -0,0 +1,43 @@
+/*
+ * QNX4 file system, Linux implementation.
+ *
+ * Version : 0.2.1
+ *
+ * Using parts of the xiafs filesystem.
+ *
+ * History :
+ *
+ * 25-05-1998 by Richard Frowijn : first release.
+ * 21-06-1998 by Frank Denis : wrote qnx4_readpage to use generic_file_read.
+ * 27-06-1998 by Frank Denis : file overwriting.
+ */
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/fs.h>
+#include <linux/sched.h>
+#include <linux/qnx4_fs.h>
+
+/*
+ * We have mostly NULL's here: the current defaults are ok for
+ * the qnx4 filesystem.
+ */
+struct file_operations qnx4_file_operations =
+{
+	llseek:			generic_file_llseek,
+	read:			generic_file_read,
+#ifdef CONFIG_QNX4FS_RW
+	write:			generic_file_write,
+#endif
+	mmap:			generic_file_mmap,
+#ifdef CONFIG_QNX4FS_RW
+	fsync:			qnx4_sync_file,
+#endif
+};
+
+struct inode_operations qnx4_file_inode_operations =
+{
+#ifdef CONFIG_QNX4FS_RW
+	truncate:		qnx4_truncate,
+#endif
+};
diff --git a/fs/qnx4/fsync.c b/fs/qnx4/fsync.c
new file mode 100644
index 00000000000000..4ef5de9554e16f
--- /dev/null
+++ b/fs/qnx4/fsync.c
@@ -0,0 +1,171 @@
+/* 
+ * QNX4 file system, Linux implementation.
+ * 
+ * Version : 0.1
+ * 
+ * Using parts of the xiafs filesystem.
+ * 
+ * History :
+ * 
+ * 24-03-1998 by Richard Frowijn : first release.
+ */
+
+#include <linux/config.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/stat.h>
+#include <linux/fcntl.h>
+#include <linux/locks.h>
+#include <linux/smp_lock.h>
+
+#include <linux/fs.h>
+#include <linux/qnx4_fs.h>
+
+#include <asm/segment.h>
+#include <asm/system.h>
+
+/*
+ * The functions for qnx4 fs file synchronization.
+ */
+
+#ifdef CONFIG_QNX4FS_RW
+
+static int sync_block(struct inode *inode, unsigned short *block, int wait)
+{
+	struct buffer_head *bh;
+	unsigned short tmp;
+
+	if (!*block)
+		return 0;
+	tmp = *block;
+	bh = sb_get_hash_table(inode->i_sb, *block);
+	if (!bh)
+		return 0;
+	if (*block != tmp) {
+		brelse(bh);
+		return 1;
+	}
+	if (wait && buffer_req(bh) && !buffer_uptodate(bh)) {
+		brelse(bh);
+		return -1;
+	}
+	if (wait || !buffer_uptodate(bh) || !buffer_dirty(bh)) {
+		brelse(bh);
+		return 0;
+	}
+	ll_rw_block(WRITE, 1, &bh);
+	atomic_dec(&bh->b_count);
+	return 0;
+}
+
+#ifdef WTF
+static int sync_iblock(struct inode *inode, unsigned short *iblock,
+		       struct buffer_head **bh, int wait)
+{
+	int rc;
+	unsigned short tmp;
+
+	*bh = NULL;
+	tmp = *iblock;
+	if (!tmp)
+		return 0;
+	rc = sync_block(inode, iblock, wait);
+	if (rc)
+		return rc;
+	*bh = sb_bread(inode->i_sb, tmp);
+	if (tmp != *iblock) {
+		brelse(*bh);
+		*bh = NULL;
+		return 1;
+	}
+	if (!*bh)
+		return -1;
+	return 0;
+}
+#endif
+
+static int sync_direct(struct inode *inode, int wait)
+{
+	int i;
+	int rc, err = 0;
+
+	for (i = 0; i < 7; i++) {
+		rc = sync_block(inode,
+				(unsigned short *) inode->u.qnx4_i.i_first_xtnt.xtnt_blk + i, wait);
+		if (rc > 0)
+			break;
+		if (rc)
+			err = rc;
+	}
+	return err;
+}
+
+#ifdef WTF
+static int sync_indirect(struct inode *inode, unsigned short *iblock, int wait)
+{
+	int i;
+	struct buffer_head *ind_bh;
+	int rc, err = 0;
+
+	rc = sync_iblock(inode, iblock, &ind_bh, wait);
+	if (rc || !ind_bh)
+		return rc;
+
+	for (i = 0; i < 512; i++) {
+		rc = sync_block(inode,
+				((unsigned short *) ind_bh->b_data) + i,
+				wait);
+		if (rc > 0)
+			break;
+		if (rc)
+			err = rc;
+	}
+	brelse(ind_bh);
+	return err;
+}
+
+static int sync_dindirect(struct inode *inode, unsigned short *diblock,
+			  int wait)
+{
+	int i;
+	struct buffer_head *dind_bh;
+	int rc, err = 0;
+
+	rc = sync_iblock(inode, diblock, &dind_bh, wait);
+	if (rc || !dind_bh)
+		return rc;
+
+	for (i = 0; i < 512; i++) {
+		rc = sync_indirect(inode,
+				((unsigned short *) dind_bh->b_data) + i,
+				   wait);
+		if (rc > 0)
+			break;
+		if (rc)
+			err = rc;
+	}
+	brelse(dind_bh);
+	return err;
+}
+#endif
+
+int qnx4_sync_file(struct file *file, struct dentry *dentry, int unused)
+{
+        struct inode *inode = dentry->d_inode;
+	int wait, err = 0;
+        
+        (void) file;
+	if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
+	      S_ISLNK(inode->i_mode)))
+		return -EINVAL;
+
+	lock_kernel();
+	for (wait = 0; wait <= 1; wait++) {
+		err |= sync_direct(inode, wait);
+	}
+	err |= qnx4_sync_inode(inode);
+	unlock_kernel();
+	return (err < 0) ? -EIO : 0;
+}
+
+#endif
diff --git a/fs/qnx4/inode.c b/fs/qnx4/inode.c
new file mode 100644
index 00000000000000..0f5a4dba734cfd
--- /dev/null
+++ b/fs/qnx4/inode.c
@@ -0,0 +1,512 @@
+/*
+ * QNX4 file system, Linux implementation.
+ *
+ * Version : 0.2.1
+ *
+ * Using parts of the xiafs filesystem.
+ *
+ * History :
+ *
+ * 01-06-1998 by Richard Frowijn : first release.
+ * 20-06-1998 by Frank Denis : Linux 2.1.99+ support, boot signature, misc.
+ * 30-06-1998 by Frank Denis : first step to write inodes.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/qnx4_fs.h>
+#include <linux/fs.h>
+#include <linux/locks.h>
+#include <linux/init.h>
+#include <linux/highuid.h>
+#include <linux/smp_lock.h>
+
+#include <asm/uaccess.h>
+
+#define QNX4_VERSION  4
+#define QNX4_BMNAME   ".bitmap"
+
+static struct super_operations qnx4_sops;
+
+#ifdef CONFIG_QNX4FS_RW
+
+int qnx4_sync_inode(struct inode *inode)
+{
+	int err = 0;
+# if 0
+	struct buffer_head *bh;
+
+   	bh = qnx4_update_inode(inode);
+	if (bh && buffer_dirty(bh))
+	{
+		ll_rw_block(WRITE, 1, &bh);
+		wait_on_buffer(bh);
+		if (buffer_req(bh) && !buffer_uptodate(bh))
+		{
+			printk ("IO error syncing qnx4 inode [%s:%08lx]\n",
+				kdevname(inode->i_dev), inode->i_ino);
+			err = -1;
+		}
+	        brelse (bh);
+	} else if (!bh) {
+		err = -1;
+	}
+# endif
+
+	return err;
+}
+
+static void qnx4_delete_inode(struct inode *inode)
+{
+	QNX4DEBUG(("qnx4: deleting inode [%lu]\n", (unsigned long) inode->i_ino));
+	lock_kernel();
+	inode->i_size = 0;
+	qnx4_truncate(inode);
+	qnx4_free_inode(inode);
+	unlock_kernel();
+}
+
+static void qnx4_write_super(struct super_block *sb)
+{
+	QNX4DEBUG(("qnx4: write_super\n"));
+	sb->s_dirt = 0;
+}
+
+static void qnx4_write_inode(struct inode *inode, int unused)
+{
+	struct qnx4_inode_entry *raw_inode;
+	int block, ino;
+	struct buffer_head *bh;
+	ino = inode->i_ino;
+
+	QNX4DEBUG(("qnx4: write inode 1.\n"));
+	if (inode->i_nlink == 0) {
+		return;
+	}
+	if (!ino) {
+		printk("qnx4: bad inode number on dev %s: %d is out of range\n",
+		       kdevname(inode->i_dev), ino);
+		return;
+	}
+	QNX4DEBUG(("qnx4: write inode 2.\n"));
+	block = ino / QNX4_INODES_PER_BLOCK;
+	lock_kernel();
+	if (!(bh = sb_bread(inode->i_sb, block))) {
+		printk("qnx4: major problem: unable to read inode from dev "
+		       "%s\n", kdevname(inode->i_dev));
+		unlock_kernel();
+		return;
+	}
+	raw_inode = ((struct qnx4_inode_entry *) bh->b_data) +
+	    (ino % QNX4_INODES_PER_BLOCK);
+	raw_inode->di_mode  = cpu_to_le16(inode->i_mode);
+	raw_inode->di_uid   = cpu_to_le16(fs_high2lowuid(inode->i_uid));
+	raw_inode->di_gid   = cpu_to_le16(fs_high2lowgid(inode->i_gid));
+	raw_inode->di_nlink = cpu_to_le16(inode->i_nlink);
+	raw_inode->di_size  = cpu_to_le32(inode->i_size);
+	raw_inode->di_mtime = cpu_to_le32(inode->i_mtime);
+	raw_inode->di_atime = cpu_to_le32(inode->i_atime);
+	raw_inode->di_ctime = cpu_to_le32(inode->i_ctime);
+	raw_inode->di_first_xtnt.xtnt_size = cpu_to_le32(inode->i_blocks);
+	mark_buffer_dirty(bh);
+	brelse(bh);
+	unlock_kernel();
+}
+
+#endif
+
+static struct super_block *qnx4_read_super(struct super_block *, void *, int);
+static void qnx4_put_super(struct super_block *sb);
+static void qnx4_read_inode(struct inode *);
+static int qnx4_remount(struct super_block *sb, int *flags, char *data);
+static int qnx4_statfs(struct super_block *, struct statfs *);
+
+static struct super_operations qnx4_sops =
+{
+	read_inode:	qnx4_read_inode,
+#ifdef CONFIG_QNX4FS_RW
+	write_inode:	qnx4_write_inode,
+	delete_inode:	qnx4_delete_inode,
+#endif
+	put_super:	qnx4_put_super,
+#ifdef CONFIG_QNX4FS_RW
+	write_super:	qnx4_write_super,
+#endif
+	statfs:		qnx4_statfs,
+	remount_fs:	qnx4_remount,
+};
+
+static int qnx4_remount(struct super_block *sb, int *flags, char *data)
+{
+	struct qnx4_sb_info *qs;
+
+	qs = &sb->u.qnx4_sb;
+	qs->Version = QNX4_VERSION;
+	if (*flags & MS_RDONLY) {
+		return 0;
+	}
+	mark_buffer_dirty(qs->sb_buf);
+
+	return 0;
+}
+
+struct buffer_head *qnx4_getblk(struct inode *inode, int nr,
+				 int create)
+{
+	struct buffer_head *result = NULL;
+
+	if ( nr >= 0 )
+		nr = qnx4_block_map( inode, nr );
+	if (nr) {
+		result = sb_getblk(inode->i_sb, nr);
+		return result;
+	}
+	if (!create) {
+		return NULL;
+	}
+#if 0
+	tmp = qnx4_new_block(inode->i_sb);
+	if (!tmp) {
+		return NULL;
+	}
+	result = sb_getblk(inode->i_sb, tmp);
+	if (tst) {
+		qnx4_free_block(inode->i_sb, tmp);
+		brelse(result);
+		goto repeat;
+	}
+	tst = tmp;
+#endif
+	inode->i_ctime = CURRENT_TIME;
+	mark_inode_dirty(inode);
+	return result;
+}
+
+struct buffer_head *qnx4_bread(struct inode *inode, int block, int create)
+{
+	struct buffer_head *bh;
+
+	bh = qnx4_getblk(inode, block, create);
+	if (!bh || buffer_uptodate(bh)) {
+		return bh;
+	}
+	ll_rw_block(READ, 1, &bh);
+	wait_on_buffer(bh);
+	if (buffer_uptodate(bh)) {
+		return bh;
+	}
+	brelse(bh);
+
+	return NULL;
+}
+
+int qnx4_get_block( struct inode *inode, long iblock, struct buffer_head *bh, int create )
+{
+	unsigned long phys;
+
+	QNX4DEBUG(("qnx4: qnx4_get_block inode=[%ld] iblock=[%ld]\n",inode->i_ino,iblock));
+
+	phys = qnx4_block_map( inode, iblock );
+	if ( phys ) {
+		// logical block is before EOF
+		bh->b_dev     = inode->i_dev;
+		bh->b_blocknr = phys;
+		bh->b_state  |= (1UL << BH_Mapped);
+	} else if ( create ) {
+		// to be done.
+	}
+	return 0;
+}
+
+unsigned long qnx4_block_map( struct inode *inode, long iblock )
+{
+	int ix;
+	long offset, i_xblk;
+	unsigned long block = 0;
+	struct buffer_head *bh = 0;
+	struct qnx4_xblk *xblk = 0;
+	struct qnx4_inode_info *qnx4_inode = &inode->u.qnx4_i;
+	qnx4_nxtnt_t nxtnt = le16_to_cpu(qnx4_inode->i_num_xtnts);
+
+	if ( iblock < le32_to_cpu(qnx4_inode->i_first_xtnt.xtnt_size) ) {
+		// iblock is in the first extent. This is easy.
+		block = le32_to_cpu(qnx4_inode->i_first_xtnt.xtnt_blk) + iblock - 1;
+	} else {
+		// iblock is beyond first extent. We have to follow the extent chain.
+		i_xblk = le32_to_cpu(qnx4_inode->i_xblk);
+		offset = iblock - le32_to_cpu(qnx4_inode->i_first_xtnt.xtnt_size);
+		ix = 0;
+		while ( --nxtnt > 0 ) {
+			if ( ix == 0 ) {
+				// read next xtnt block.
+				bh = sb_bread(inode->i_sb, i_xblk - 1);
+				if ( !bh ) {
+					QNX4DEBUG(("qnx4: I/O error reading xtnt block [%ld])\n", i_xblk - 1));
+					return -EIO;
+				}
+				xblk = (struct qnx4_xblk*)bh->b_data;
+				if ( memcmp( xblk->xblk_signature, "IamXblk", 7 ) ) {
+					QNX4DEBUG(("qnx4: block at %ld is not a valid xtnt\n", qnx4_inode->i_xblk));
+					return -EIO;
+				}
+			}
+			if ( offset < le32_to_cpu(xblk->xblk_xtnts[ix].xtnt_size) ) {
+				// got it!
+				block = le32_to_cpu(xblk->xblk_xtnts[ix].xtnt_blk) + offset - 1;
+				break;
+			}
+			offset -= le32_to_cpu(xblk->xblk_xtnts[ix].xtnt_size);
+			if ( ++ix >= xblk->xblk_num_xtnts ) {
+				i_xblk = le32_to_cpu(xblk->xblk_next_xblk);
+				ix = 0;
+				brelse( bh );
+				bh = 0;
+			}
+		}
+		if ( bh )
+			brelse( bh );
+	}
+
+	QNX4DEBUG(("qnx4: mapping block %ld of inode %ld = %ld\n",iblock,inode->i_ino,block));
+	return block;
+}
+
+static int qnx4_statfs(struct super_block *sb, struct statfs *buf)
+{
+	buf->f_type    = sb->s_magic;
+	buf->f_bsize   = sb->s_blocksize;
+	buf->f_blocks  = le32_to_cpu(sb->u.qnx4_sb.BitMap->di_size) * 8;
+	buf->f_bfree   = qnx4_count_free_blocks(sb);
+	buf->f_bavail  = buf->f_bfree;
+	buf->f_namelen = QNX4_NAME_MAX;
+
+	return 0;
+}
+
+/*
+ * Check the root directory of the filesystem to make sure
+ * it really _is_ a qnx4 filesystem, and to check the size
+ * of the directory entry.
+ */
+static const char *qnx4_checkroot(struct super_block *sb)
+{
+	struct buffer_head *bh;
+	struct qnx4_inode_entry *rootdir;
+	int rd, rl;
+	int i, j;
+	int found = 0;
+
+	if (*(sb->u.qnx4_sb.sb->RootDir.di_fname) != '/') {
+		return "no qnx4 filesystem (no root dir).";
+	} else {
+		QNX4DEBUG(("QNX4 filesystem found on dev %s.\n", kdevname(sb->s_dev)));
+		rd = le32_to_cpu(sb->u.qnx4_sb.sb->RootDir.di_first_xtnt.xtnt_blk) - 1;
+		rl = le32_to_cpu(sb->u.qnx4_sb.sb->RootDir.di_first_xtnt.xtnt_size);
+		for (j = 0; j < rl; j++) {
+			bh = sb_bread(sb, rd + j);	/* root dir, first block */
+			if (bh == NULL) {
+				return "unable to read root entry.";
+			}
+			for (i = 0; i < QNX4_INODES_PER_BLOCK; i++) {
+				rootdir = (struct qnx4_inode_entry *) (bh->b_data + i * QNX4_DIR_ENTRY_SIZE);
+				if (rootdir->di_fname != NULL) {
+					QNX4DEBUG(("Rootdir entry found : [%s]\n", rootdir->di_fname));
+					if (!strncmp(rootdir->di_fname, QNX4_BMNAME, sizeof QNX4_BMNAME)) {
+						found = 1;
+						sb->u.qnx4_sb.BitMap = kmalloc( sizeof( struct qnx4_inode_entry ), GFP_KERNEL );
+						if (!sb->u.qnx4_sb.BitMap) {
+							brelse (bh);
+							return "not enough memory for bitmap inode";
+						}
+						memcpy( sb->u.qnx4_sb.BitMap, rootdir, sizeof( struct qnx4_inode_entry ) );	/* keep bitmap inode known */
+						break;
+					}
+				}
+			}
+			brelse(bh);
+			if (found != 0) {
+				break;
+			}
+		}
+		if (found == 0) {
+			return "bitmap file not found.";
+		}
+	}
+	return NULL;
+}
+
+static struct super_block *qnx4_read_super(struct super_block *s,
+					   void *data, int silent)
+{
+	struct buffer_head *bh;
+	kdev_t dev = s->s_dev;
+	struct inode *root;
+	const char *errmsg;
+
+	set_blocksize(dev, QNX4_BLOCK_SIZE);
+	s->s_blocksize = QNX4_BLOCK_SIZE;
+	s->s_blocksize_bits = QNX4_BLOCK_SIZE_BITS;
+
+	/* Check the superblock signature. Since the qnx4 code is
+	   dangerous, we should leave as quickly as possible
+	   if we don't belong here... */
+	bh = sb_bread(s, 1);
+	if (!bh) {
+		printk("qnx4: unable to read the superblock\n");
+		goto outnobh;
+	}
+	if ( le32_to_cpu( *(__u32*)bh->b_data ) != QNX4_SUPER_MAGIC ) {
+		if (!silent)
+			printk("qnx4: wrong fsid in superblock sector.\n");
+		goto out;
+	}
+	s->s_op = &qnx4_sops;
+	s->s_magic = QNX4_SUPER_MAGIC;
+#ifndef CONFIG_QNX4FS_RW
+	s->s_flags |= MS_RDONLY;	/* Yup, read-only yet */
+#endif
+	s->u.qnx4_sb.sb_buf = bh;
+	s->u.qnx4_sb.sb = (struct qnx4_super_block *) bh->b_data;
+
+
+ 	/* check before allocating dentries, inodes, .. */
+	errmsg = qnx4_checkroot(s);
+	if (errmsg != NULL) {
+ 		if (!silent)
+ 			printk("qnx4: %s\n", errmsg);
+		goto out;
+	}
+
+ 	/* does root not have inode number QNX4_ROOT_INO ?? */
+ 	root = iget(s, QNX4_ROOT_INO * QNX4_INODES_PER_BLOCK);
+ 	if (!root) {
+ 		printk("qnx4: get inode failed\n");
+ 		goto out;
+ 	}
+
+ 	s->s_root = d_alloc_root(root);
+ 	if (s->s_root == NULL)
+ 		goto outi;
+
+	brelse(bh);
+
+	return s;
+
+      outi:
+	iput(root);
+      out:
+	brelse(bh);
+      outnobh:
+
+	return NULL;
+}
+
+static void qnx4_put_super(struct super_block *sb)
+{
+	kfree( sb->u.qnx4_sb.BitMap );
+	return;
+}
+
+static int qnx4_writepage(struct page *page)
+{
+	return block_write_full_page(page,qnx4_get_block);
+}
+static int qnx4_readpage(struct file *file, struct page *page)
+{
+	return block_read_full_page(page,qnx4_get_block);
+}
+static int qnx4_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)
+{
+	return cont_prepare_write(page,from,to,qnx4_get_block,
+		&page->mapping->host->u.qnx4_i.mmu_private);
+}
+static int qnx4_bmap(struct address_space *mapping, long block)
+{
+	return generic_block_bmap(mapping,block,qnx4_get_block);
+}
+struct address_space_operations qnx4_aops = {
+	readpage: qnx4_readpage,
+	writepage: qnx4_writepage,
+	sync_page: block_sync_page,
+	prepare_write: qnx4_prepare_write,
+	commit_write: generic_commit_write,
+	bmap: qnx4_bmap
+};
+
+static void qnx4_read_inode(struct inode *inode)
+{
+	struct buffer_head *bh;
+	struct qnx4_inode_entry *raw_inode;
+	int block, ino;
+
+	ino = inode->i_ino;
+	inode->i_mode = 0;
+
+	QNX4DEBUG(("Reading inode : [%d]\n", ino));
+	if (!ino) {
+		printk("qnx4: bad inode number on dev %s: %d is out of range\n",
+		       kdevname(inode->i_dev), ino);
+		return;
+	}
+	block = ino / QNX4_INODES_PER_BLOCK;
+
+	if (!(bh = sb_bread(inode->i_sb, block))) {
+		printk("qnx4: major problem: unable to read inode from dev "
+		       "%s\n", kdevname(inode->i_dev));
+		return;
+	}
+	raw_inode = ((struct qnx4_inode_entry *) bh->b_data) +
+	    (ino % QNX4_INODES_PER_BLOCK);
+
+	inode->i_mode    = le16_to_cpu(raw_inode->di_mode);
+	inode->i_uid     = (uid_t)le16_to_cpu(raw_inode->di_uid);
+	inode->i_gid     = (gid_t)le16_to_cpu(raw_inode->di_gid);
+	inode->i_nlink   = le16_to_cpu(raw_inode->di_nlink);
+	inode->i_size    = le32_to_cpu(raw_inode->di_size);
+	inode->i_mtime   = le32_to_cpu(raw_inode->di_mtime);
+	inode->i_atime   = le32_to_cpu(raw_inode->di_atime);
+	inode->i_ctime   = le32_to_cpu(raw_inode->di_ctime);
+	inode->i_blocks  = le32_to_cpu(raw_inode->di_first_xtnt.xtnt_size);
+	inode->i_blksize = QNX4_DIR_ENTRY_SIZE;
+
+	memcpy(&inode->u.qnx4_i, (struct qnx4_inode_info *) raw_inode, QNX4_DIR_ENTRY_SIZE);
+	if (S_ISREG(inode->i_mode)) {
+		inode->i_op = &qnx4_file_inode_operations;
+		inode->i_fop = &qnx4_file_operations;
+		inode->i_mapping->a_ops = &qnx4_aops;
+		inode->u.qnx4_i.mmu_private = inode->i_size;
+	} else if (S_ISDIR(inode->i_mode)) {
+		inode->i_op = &qnx4_dir_inode_operations;
+		inode->i_fop = &qnx4_dir_operations;
+	} else if (S_ISLNK(inode->i_mode)) {
+		inode->i_op = &page_symlink_inode_operations;
+		inode->i_mapping->a_ops = &qnx4_aops;
+		inode->u.qnx4_i.mmu_private = inode->i_size;
+	} else
+		printk("qnx4: bad inode %d on dev %s\n",ino,kdevname(inode->i_dev));
+	brelse(bh);
+}
+
+static DECLARE_FSTYPE_DEV(qnx4_fs_type, "qnx4", qnx4_read_super);
+
+static int __init init_qnx4_fs(void)
+{
+	printk("QNX4 filesystem 0.2.2 registered.\n");
+	return register_filesystem(&qnx4_fs_type);
+}
+
+static void __exit exit_qnx4_fs(void)
+{
+	unregister_filesystem(&qnx4_fs_type);
+}
+
+EXPORT_NO_SYMBOLS;
+
+module_init(init_qnx4_fs)
+module_exit(exit_qnx4_fs)
+MODULE_LICENSE("GPL");
+
diff --git a/fs/qnx4/namei.c b/fs/qnx4/namei.c
new file mode 100644
index 00000000000000..7366b757fec71f
--- /dev/null
+++ b/fs/qnx4/namei.c
@@ -0,0 +1,237 @@
+/* 
+ * QNX4 file system, Linux implementation.
+ * 
+ * Version : 0.2.1
+ * 
+ * Using parts of the xiafs filesystem.
+ * 
+ * History :
+ * 
+ * 01-06-1998 by Richard Frowijn : first release.
+ * 21-06-1998 by Frank Denis : dcache support, fixed error codes.
+ * 04-07-1998 by Frank Denis : first step for rmdir/unlink.
+ */
+
+#include <linux/config.h>
+#include <linux/sched.h>
+#include <linux/qnx4_fs.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/stat.h>
+#include <linux/fcntl.h>
+#include <linux/errno.h>
+
+#include <asm/segment.h>
+
+/*
+ * check if the filename is correct. For some obscure reason, qnx writes a
+ * new file twice in the directory entry, first with all possible options at 0
+ * and for a second time the way it is, they want us not to access the qnx
+ * filesystem when whe are using linux.
+ */
+static int qnx4_match(int len, const char *name,
+		      struct buffer_head *bh, unsigned long *offset)
+{
+	struct qnx4_inode_entry *de;
+	int namelen, thislen;
+
+	if (bh == NULL) {
+		printk("qnx4: matching unassigned buffer !\n");
+		return 0;
+	}
+	de = (struct qnx4_inode_entry *) (bh->b_data + *offset);
+	*offset += QNX4_DIR_ENTRY_SIZE;
+	if ((de->di_status & QNX4_FILE_LINK) != 0) {
+		namelen = QNX4_NAME_MAX;
+	} else {
+		namelen = QNX4_SHORT_NAME_MAX;
+	}
+	/* "" means "." ---> so paths like "/usr/lib//libc.a" work */
+	if (!len && (de->di_fname[0] == '.') && (de->di_fname[1] == '\0')) {
+		return 1;
+	}
+	thislen = strlen( de->di_fname );
+	if ( thislen > namelen )
+		thislen = namelen;
+	if (len != thislen) {
+		return 0;
+	}
+	if (strncmp(name, de->di_fname, len) == 0) {
+		if ((de->di_status & (QNX4_FILE_USED|QNX4_FILE_LINK)) != 0) {
+			return 1;
+		}
+	}
+	return 0;
+}
+
+static struct buffer_head *qnx4_find_entry(int len, struct inode *dir,
+	   const char *name, struct qnx4_inode_entry **res_dir, int *ino)
+{
+	unsigned long block, offset, blkofs;
+	struct buffer_head *bh;
+
+	*res_dir = NULL;
+	if (!dir->i_sb) {
+		printk("qnx4: no superblock on dir.\n");
+		return NULL;
+	}
+	bh = NULL;
+	block = offset = blkofs = 0;
+	while (blkofs * QNX4_BLOCK_SIZE + offset < dir->i_size) {
+		if (!bh) {
+			bh = qnx4_bread(dir, blkofs, 0);
+			if (!bh) {
+				blkofs++;
+				continue;
+			}
+		}
+		*res_dir = (struct qnx4_inode_entry *) (bh->b_data + offset);
+		if (qnx4_match(len, name, bh, &offset)) {
+			block = qnx4_block_map( dir, blkofs );
+			*ino = block * QNX4_INODES_PER_BLOCK +
+			    (offset / QNX4_DIR_ENTRY_SIZE) - 1;
+			return bh;
+		}
+		if (offset < bh->b_size) {
+			continue;
+		}
+		brelse(bh);
+		bh = NULL;
+		offset = 0;
+		blkofs++;
+	}
+	brelse(bh);
+	*res_dir = NULL;
+	return NULL;
+}
+
+struct dentry * qnx4_lookup(struct inode *dir, struct dentry *dentry)
+{
+	int ino;
+	struct qnx4_inode_entry *de;
+	struct qnx4_link_info *lnk;
+	struct buffer_head *bh;
+	const char *name = dentry->d_name.name;
+	int len = dentry->d_name.len;
+	struct inode *foundinode = NULL;
+
+	if (!(bh = qnx4_find_entry(len, dir, name, &de, &ino)))
+		goto out;
+	/* The entry is linked, let's get the real info */
+	if ((de->di_status & QNX4_FILE_LINK) == QNX4_FILE_LINK) {
+		lnk = (struct qnx4_link_info *) de;
+		ino = (le32_to_cpu(lnk->dl_inode_blk) - 1) *
+                    QNX4_INODES_PER_BLOCK +
+		    lnk->dl_inode_ndx;
+	}
+	brelse(bh);
+
+	if ((foundinode = iget(dir->i_sb, ino)) == NULL) {
+		QNX4DEBUG(("qnx4: lookup->iget -> NULL\n"));
+		return ERR_PTR(-EACCES);
+	}
+out:
+	d_add(dentry, foundinode);
+
+	return NULL;
+}
+
+#ifdef CONFIG_QNX4FS_RW
+int qnx4_create(struct inode *dir, struct dentry *dentry, int mode)
+{
+	QNX4DEBUG(("qnx4: qnx4_create\n"));
+	if (dir == NULL) {
+		return -ENOENT;
+	}
+	return -ENOSPC;
+}
+
+int qnx4_rmdir(struct inode *dir, struct dentry *dentry)
+{
+	struct buffer_head *bh;
+	struct qnx4_inode_entry *de;
+	struct inode *inode;
+	int retval;
+	int ino;
+
+	QNX4DEBUG(("qnx4: qnx4_rmdir [%s]\n", dentry->d_name.name));
+	bh = qnx4_find_entry(dentry->d_name.len, dir, dentry->d_name.name,
+			     &de, &ino);
+	if (bh == NULL) {
+		return -ENOENT;
+	}
+	inode = dentry->d_inode;
+	if (inode->i_ino != ino) {
+		retval = -EIO;
+		goto end_rmdir;
+	}
+#if 0
+	if (!empty_dir(inode)) {
+		retval = -ENOTEMPTY;
+		goto end_rmdir;
+	}
+#endif
+	if (inode->i_nlink != 2) {
+		QNX4DEBUG(("empty directory has nlink!=2 (%d)\n", inode->i_nlink));
+	}
+	QNX4DEBUG(("qnx4: deleting directory\n"));
+	de->di_status = 0;
+	memset(de->di_fname, 0, sizeof de->di_fname);
+	de->di_mode = 0;
+	mark_buffer_dirty(bh);
+	inode->i_nlink = 0;
+	mark_inode_dirty(inode);
+	inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+	dir->i_nlink--;
+	mark_inode_dirty(dir);
+	retval = 0;
+
+      end_rmdir:
+	brelse(bh);
+
+	return retval;
+}
+
+int qnx4_unlink(struct inode *dir, struct dentry *dentry)
+{
+	struct buffer_head *bh;
+	struct qnx4_inode_entry *de;
+	struct inode *inode;
+	int retval;
+	int ino;
+
+	QNX4DEBUG(("qnx4: qnx4_unlink [%s]\n", dentry->d_name.name));
+	bh = qnx4_find_entry(dentry->d_name.len, dir, dentry->d_name.name,
+			     &de, &ino);
+	if (bh == NULL) {
+		return -ENOENT;
+	}
+	inode = dentry->d_inode;
+	if (inode->i_ino != ino) {
+		retval = -EIO;
+		goto end_unlink;
+	}
+	retval = -EPERM;
+	if (!inode->i_nlink) {
+		QNX4DEBUG(("Deleting nonexistent file (%s:%lu), %d\n",
+			   kdevname(inode->i_dev),
+			   inode->i_ino, inode->i_nlink));
+		inode->i_nlink = 1;
+	}
+	de->di_status = 0;
+	memset(de->di_fname, 0, sizeof de->di_fname);
+	de->di_mode = 0;
+	mark_buffer_dirty(bh);
+	dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+	mark_inode_dirty(dir);
+	inode->i_nlink--;
+	inode->i_ctime = dir->i_ctime;
+	mark_inode_dirty(inode);
+	retval = 0;
+
+      end_unlink:
+	brelse(bh);
+
+	return retval;
+}
+#endif
diff --git a/fs/qnx4/truncate.c b/fs/qnx4/truncate.c
new file mode 100644
index 00000000000000..9dad91a173adec
--- /dev/null
+++ b/fs/qnx4/truncate.c
@@ -0,0 +1,38 @@
+/* 
+ * QNX4 file system, Linux implementation.
+ * 
+ * Version : 0.1
+ * 
+ * Using parts of the xiafs filesystem.
+ * 
+ * History :
+ * 
+ * 30-06-1998 by Frank DENIS : ugly filler.
+ */
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/qnx4_fs.h>
+#include <linux/fs.h>
+#include <linux/locks.h>
+#include <asm/uaccess.h>
+
+#ifdef CONFIG_QNX4FS_RW
+
+void qnx4_truncate(struct inode *inode)
+{
+	if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
+	      S_ISLNK(inode->i_mode))) {
+		return;
+	}
+	if (!(S_ISDIR(inode->i_mode))) {
+		/* TODO */
+	}
+	QNX4DEBUG(("qnx4: qnx4_truncate called\n"));
+	inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+	mark_inode_dirty(inode);
+}
+
+#endif
diff --git a/fs/quota.c b/fs/quota.c
new file mode 100644
index 00000000000000..2fac44da6b65e3
--- /dev/null
+++ b/fs/quota.c
@@ -0,0 +1,489 @@
+/*
+ * Quota code necessary even when VFS quota support is not compiled
+ * into the kernel.  The interesting stuff is over in dquot.c, here
+ * we have symbols for initial quotactl(2) handling, the sysctl(2)
+ * variables, etc - things needed even when quota support disabled.
+ */
+
+#include <linux/fs.h>
+#include <linux/slab.h>
+#include <asm/current.h>
+#include <asm/uaccess.h>
+#include <linux/kernel.h>
+#include <linux/smp_lock.h>
+#include <linux/quotaops.h>
+#include <linux/quotacompat.h>
+
+struct dqstats dqstats;
+
+/* Check validity of quotactl */
+static int check_quotactl_valid(struct super_block *sb, int type, int cmd, qid_t id)
+{
+	if (type >= MAXQUOTAS)
+		return -EINVAL;
+	if (!sb && cmd != Q_SYNC)
+		return -ENODEV;
+	/* Is operation supported? */
+	if (sb && !sb->s_qcop)
+		return -ENOSYS;
+
+	switch (cmd) {
+		case Q_GETFMT:
+			break;
+		case Q_QUOTAON:
+			if (!sb->s_qcop->quota_on)
+				return -ENOSYS;
+			break;
+		case Q_QUOTAOFF:
+			if (!sb->s_qcop->quota_off)
+				return -ENOSYS;
+			break;
+		case Q_SETINFO:
+			if (!sb->s_qcop->set_info)
+				return -ENOSYS;
+			break;
+		case Q_GETINFO:
+			if (!sb->s_qcop->get_info)
+				return -ENOSYS;
+			break;
+		case Q_SETQUOTA:
+			if (!sb->s_qcop->set_dqblk)
+				return -ENOSYS;
+			break;
+		case Q_GETQUOTA:
+			if (!sb->s_qcop->get_dqblk)
+				return -ENOSYS;
+			break;
+		case Q_SYNC:
+			if (sb && !sb->s_qcop->quota_sync)
+				return -ENOSYS;
+			break;
+		case Q_XQUOTAON:
+		case Q_XQUOTAOFF:
+		case Q_XQUOTARM:
+			if (!sb->s_qcop->set_xstate)
+				return -ENOSYS;
+			break;
+		case Q_XGETQSTAT:
+			if (!sb->s_qcop->get_xstate)
+				return -ENOSYS;
+			break;
+		case Q_XSETQLIM:
+			if (!sb->s_qcop->set_xquota)
+				return -ENOSYS;
+			break;
+		case Q_XGETQUOTA:
+			if (!sb->s_qcop->get_xquota)
+				return -ENOSYS;
+			break;
+		default:
+			return -EINVAL;
+	}
+
+	/* Is quota turned on for commands which need it? */
+	switch (cmd) {
+		case Q_GETFMT:
+		case Q_GETINFO:
+		case Q_QUOTAOFF:
+		case Q_SETINFO:
+		case Q_SETQUOTA:
+		case Q_GETQUOTA:
+			if (!sb_has_quota_enabled(sb, type))
+				return -ESRCH;
+	}
+	/* Check privileges */
+	if (cmd == Q_GETQUOTA || cmd == Q_XGETQUOTA) {
+		if (((type == USRQUOTA && current->euid != id) ||
+		     (type == GRPQUOTA && !in_egroup_p(id))) &&
+		    !capable(CAP_SYS_ADMIN))
+			return -EPERM;
+	}
+	else if (cmd != Q_GETFMT && cmd != Q_SYNC && cmd != Q_GETINFO && cmd != Q_XGETQSTAT)
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+	return 0;
+}
+
+/* Resolve device pathname to superblock */
+static struct super_block *resolve_dev(const char *path)
+{
+	int ret;
+	mode_t mode;
+	struct nameidata nd;
+	kdev_t dev;
+	struct super_block *sb;
+
+	ret = user_path_walk(path, &nd);
+	if (ret)
+		goto out;
+
+	dev = nd.dentry->d_inode->i_rdev;
+	mode = nd.dentry->d_inode->i_mode;
+	path_release(&nd);
+
+	ret = -ENOTBLK;
+	if (!S_ISBLK(mode))
+		goto out;
+	ret = -ENODEV;
+	sb = get_super(dev);
+	if (!sb)
+		goto out;
+	return sb;
+out:
+	return ERR_PTR(ret);
+}
+
+/* Copy parameters and call proper function */
+static int do_quotactl(struct super_block *sb, int type, int cmd, qid_t id, caddr_t addr)
+{
+	int ret;
+
+	switch (cmd) {
+		case Q_QUOTAON: {
+			char *pathname;
+
+			if (IS_ERR(pathname = getname(addr)))
+				return PTR_ERR(pathname);
+			ret = sb->s_qcop->quota_on(sb, type, id, pathname);
+			putname(pathname);
+			return ret;
+		}
+		case Q_QUOTAOFF:
+			return sb->s_qcop->quota_off(sb, type);
+
+		case Q_GETFMT: {
+			__u32 fmt;
+
+			fmt = sb_dqopt(sb)->info[type].dqi_format->qf_fmt_id;
+			if (copy_to_user(addr, &fmt, sizeof(fmt)))
+				return -EFAULT;
+			return 0;
+		}
+		case Q_GETINFO: {
+			struct if_dqinfo info;
+
+			if ((ret = sb->s_qcop->get_info(sb, type, &info)))
+				return ret;
+			if (copy_to_user(addr, &info, sizeof(info)))
+				return -EFAULT;
+			return 0;
+		}
+		case Q_SETINFO: {
+			struct if_dqinfo info;
+
+			if (copy_from_user(&info, addr, sizeof(info)))
+				return -EFAULT;
+			return sb->s_qcop->set_info(sb, type, &info);
+		}
+		case Q_GETQUOTA: {
+			struct if_dqblk idq;
+
+			if ((ret = sb->s_qcop->get_dqblk(sb, type, id, &idq)))
+				return ret;
+			if (copy_to_user(addr, &idq, sizeof(idq)))
+				return -EFAULT;
+			return 0;
+		}
+		case Q_SETQUOTA: {
+			struct if_dqblk idq;
+
+			if (copy_from_user(&idq, addr, sizeof(idq)))
+				return -EFAULT;
+			return sb->s_qcop->set_dqblk(sb, type, id, &idq);
+		}
+		case Q_SYNC:
+			if (sb)
+				return sb->s_qcop->quota_sync(sb, type);
+			sync_dquots_dev(NODEV, type);
+			return 0;
+		case Q_XQUOTAON:
+		case Q_XQUOTAOFF:
+		case Q_XQUOTARM: {
+			__u32 flags;
+
+			if (copy_from_user(&flags, addr, sizeof(flags)))
+				return -EFAULT;
+			return sb->s_qcop->set_xstate(sb, flags, cmd);
+		}
+		case Q_XGETQSTAT: {
+			struct fs_quota_stat fqs;
+		
+			if ((ret = sb->s_qcop->get_xstate(sb, &fqs)))
+				return ret;
+			if (copy_to_user(addr, &fqs, sizeof(fqs)))
+				return -EFAULT;
+			return 0;
+		}
+		case Q_XSETQLIM: {
+			struct fs_disk_quota fdq;
+
+			if (copy_from_user(&fdq, addr, sizeof(fdq)))
+				return -EFAULT;
+		       return sb->s_qcop->set_xquota(sb, type, id, &fdq);
+		}
+		case Q_XGETQUOTA: {
+			struct fs_disk_quota fdq;
+
+			if ((ret = sb->s_qcop->get_xquota(sb, type, id, &fdq)))
+				return ret;
+			if (copy_to_user(addr, &fdq, sizeof(fdq)))
+				return -EFAULT;
+			return 0;
+		}
+		/* We never reach here unless validity check is broken */
+		default:
+			BUG();
+	}
+	return 0;
+}
+
+static int check_compat_quotactl_valid(struct super_block *sb, int type, int cmd, qid_t id)
+{
+	if (type >= MAXQUOTAS)
+		return -EINVAL;
+	/* Is operation supported? */
+	/* sb==NULL for GETSTATS calls */
+	if (sb && !sb->s_qcop)
+		return -ENOSYS;
+
+	switch (cmd) {
+		case Q_COMP_QUOTAON:
+			if (!sb->s_qcop->quota_on)
+				return -ENOSYS;
+			break;
+		case Q_COMP_QUOTAOFF:
+			if (!sb->s_qcop->quota_off)
+				return -ENOSYS;
+			break;
+		case Q_COMP_SYNC:
+			if (sb && !sb->s_qcop->quota_sync)
+				return -ENOSYS;
+			break;
+		case Q_V1_SETQLIM:
+		case Q_V1_SETUSE:
+		case Q_V1_SETQUOTA:
+			if (!sb->s_qcop->set_dqblk)
+				return -ENOSYS;
+			break;
+		case Q_V1_GETQUOTA:
+			if (!sb->s_qcop->get_dqblk)
+				return -ENOSYS;
+			break;
+		case Q_V1_RSQUASH:
+			if (!sb->s_qcop->set_info)
+				return -ENOSYS;
+			break;
+		case Q_V1_GETSTATS:
+			return 0;	/* GETSTATS need no other checks */
+		default:
+			return -EINVAL;
+	}
+
+	/* Is quota turned on for commands which need it? */
+	switch (cmd) {
+		case Q_V2_SETFLAGS:
+		case Q_V2_SETGRACE:
+		case Q_V2_SETINFO:
+		case Q_V2_GETINFO:
+		case Q_COMP_QUOTAOFF:
+		case Q_V1_RSQUASH:
+		case Q_V1_SETQUOTA:
+		case Q_V1_SETQLIM:
+		case Q_V1_SETUSE:
+		case Q_V2_SETQUOTA:
+		/* Q_V2_SETQLIM: collision with Q_V1_SETQLIM */
+		case Q_V2_SETUSE:
+		case Q_V1_GETQUOTA:
+		case Q_V2_GETQUOTA:
+			if (!sb_has_quota_enabled(sb, type))
+				return -ESRCH;
+	}
+	if (cmd != Q_COMP_QUOTAON &&
+	    cmd != Q_COMP_QUOTAOFF &&
+	    cmd != Q_COMP_SYNC &&
+	    sb_dqopt(sb)->info[type].dqi_format->qf_fmt_id != QFMT_VFS_OLD)
+		return -ESRCH;
+
+	/* Check privileges */
+	if (cmd == Q_V1_GETQUOTA || cmd == Q_V2_GETQUOTA) {
+		if (((type == USRQUOTA && current->euid != id) ||
+		     (type == GRPQUOTA && !in_egroup_p(id))) &&
+		    !capable(CAP_SYS_ADMIN))
+			return -EPERM;
+	}
+	else if (cmd != Q_V1_GETSTATS && cmd != Q_V2_GETSTATS && cmd != Q_V2_GETINFO && cmd != Q_COMP_SYNC)
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+	return 0;
+}
+
+static int v1_set_rsquash(struct super_block *sb, int type, int flag)
+{
+	struct if_dqinfo info;
+
+	info.dqi_valid = IIF_FLAGS;
+	info.dqi_flags = flag ? V1_DQF_RSQUASH : 0;
+	return sb->s_qcop->set_info(sb, type, &info);
+}
+
+static int v1_get_dqblk(struct super_block *sb, int type, qid_t id, struct v1c_mem_dqblk *mdq)
+{
+	struct if_dqblk idq;
+	int ret;
+
+	if ((ret = sb->s_qcop->get_dqblk(sb, type, id, &idq)) < 0)
+		return ret;
+	mdq->dqb_ihardlimit = idq.dqb_ihardlimit;
+	mdq->dqb_isoftlimit = idq.dqb_isoftlimit;
+	mdq->dqb_curinodes = idq.dqb_curinodes;
+	mdq->dqb_bhardlimit = idq.dqb_bhardlimit;
+	mdq->dqb_bsoftlimit = idq.dqb_bsoftlimit;
+	mdq->dqb_curblocks = toqb(idq.dqb_curspace);
+	mdq->dqb_itime = idq.dqb_itime;
+	mdq->dqb_btime = idq.dqb_btime;
+	if (id == 0) {	/* Times for id 0 are in fact grace times */
+		struct if_dqinfo info;
+
+		if ((ret = sb->s_qcop->get_info(sb, type, &info)) < 0)
+			return ret;
+		mdq->dqb_btime = info.dqi_bgrace;
+		mdq->dqb_itime = info.dqi_igrace;
+	}
+	return 0;
+}
+
+static int v1_set_dqblk(struct super_block *sb, int type, int cmd, qid_t id, struct v1c_mem_dqblk *mdq)
+{
+	struct if_dqblk idq;
+	int ret;
+
+	idq.dqb_valid = 0;
+	if (cmd == Q_V1_SETQUOTA || cmd == Q_V1_SETQLIM) {
+		idq.dqb_ihardlimit = mdq->dqb_ihardlimit;
+		idq.dqb_isoftlimit = mdq->dqb_isoftlimit;
+		idq.dqb_bhardlimit = mdq->dqb_bhardlimit;
+		idq.dqb_bsoftlimit = mdq->dqb_bsoftlimit;
+		idq.dqb_valid |= QIF_LIMITS;
+	}
+	if (cmd == Q_V1_SETQUOTA || cmd == Q_V1_SETUSE) {
+		idq.dqb_curinodes = mdq->dqb_curinodes;
+		idq.dqb_curspace = ((qsize_t)mdq->dqb_curblocks) << QUOTABLOCK_BITS;
+		idq.dqb_valid |= QIF_USAGE;
+	}
+	ret = sb->s_qcop->set_dqblk(sb, type, id, &idq);
+	if (!ret && id == 0 && cmd == Q_V1_SETQUOTA) {	/* Times for id 0 are in fact grace times */
+		struct if_dqinfo info;
+
+		info.dqi_bgrace = mdq->dqb_btime;
+		info.dqi_igrace = mdq->dqb_itime;
+		info.dqi_valid = IIF_BGRACE | IIF_IGRACE;
+		ret = sb->s_qcop->set_info(sb, type, &info);
+	}
+	return ret;
+}
+
+static void v1_get_stats(struct v1c_dqstats *dst)
+{
+	memcpy(dst, &dqstats, sizeof(dqstats));
+}
+
+/* Handle requests to old interface */
+static int do_compat_quotactl(struct super_block *sb, int type, int cmd, qid_t id, caddr_t addr)
+{
+	int ret;
+
+	switch (cmd) {
+		case Q_COMP_QUOTAON: {
+			char *pathname;
+
+			if (IS_ERR(pathname = getname(addr)))
+				return PTR_ERR(pathname);
+			ret = sb->s_qcop->quota_on(sb, type, QFMT_VFS_OLD, pathname);
+			putname(pathname);
+			return ret;
+		}
+		case Q_COMP_QUOTAOFF:
+			return sb->s_qcop->quota_off(sb, type);
+		case Q_COMP_SYNC:
+			if (sb)
+				return sb->s_qcop->quota_sync(sb, type);
+			sync_dquots_dev(NODEV, type);
+			return 0;
+		case Q_V1_RSQUASH: {
+			int flag;
+
+			if (copy_from_user(&flag, addr, sizeof(flag)))
+				return -EFAULT;
+			return v1_set_rsquash(sb, type, flag);
+		}
+		case Q_V1_GETQUOTA: {
+			struct v1c_mem_dqblk mdq;
+
+			if ((ret = v1_get_dqblk(sb, type, id, &mdq)))
+				return ret;
+			if (copy_to_user(addr, &mdq, sizeof(mdq)))
+				return -EFAULT;
+			return 0;
+		}
+		case Q_V1_SETQLIM:
+		case Q_V1_SETUSE:
+		case Q_V1_SETQUOTA: {
+			struct v1c_mem_dqblk mdq;
+
+			if (copy_from_user(&mdq, addr, sizeof(mdq)))
+				return -EFAULT;
+			return v1_set_dqblk(sb, type, cmd, id, &mdq);
+		}
+		case Q_V1_GETSTATS: {
+			struct v1c_dqstats dst;
+
+			v1_get_stats(&dst);
+			if (copy_to_user(addr, &dst, sizeof(dst)))
+				return -EFAULT;
+			return 0;
+		}
+	}
+	BUG();
+	return 0;
+}
+
+/* Macros for short-circuiting the compatibility tests */
+#define NEW_COMMAND(c) ((c) & (0x80 << 16))
+#define XQM_COMMAND(c) (((c) & ('X' << 8)) == ('X' << 8))
+
+/*
+ * This is the system call interface. This communicates with
+ * the user-level programs. Currently this only supports diskquota
+ * calls. Maybe we need to add the process quotas etc. in the future,
+ * but we probably should use rlimits for that.
+ */
+asmlinkage long sys_quotactl(unsigned int cmd, const char *special, qid_t id, caddr_t addr)
+{
+	uint cmds, type;
+	struct super_block *sb = NULL;
+	int ret = -EINVAL;
+
+	lock_kernel();
+	cmds = cmd >> SUBCMDSHIFT;
+	type = cmd & SUBCMDMASK;
+
+	if (cmds != Q_V1_GETSTATS && cmds != Q_V2_GETSTATS && IS_ERR(sb = resolve_dev(special))) {
+		ret = PTR_ERR(sb);
+		sb = NULL;
+		goto out;
+	}
+	if (!NEW_COMMAND(cmds) && !XQM_COMMAND(cmds)) {
+		if ((ret = check_compat_quotactl_valid(sb, type, cmds, id)) < 0)
+			goto out;
+		ret = do_compat_quotactl(sb, type, cmds, id, addr);
+		goto out;
+	}
+	if ((ret = check_quotactl_valid(sb, type, cmds, id)) < 0)
+		goto out;
+	ret = do_quotactl(sb, type, cmds, id, addr);
+out:
+	if (sb)
+		drop_super(sb);
+	unlock_kernel();
+	return ret;
+}
diff --git a/fs/quota_v1.c b/fs/quota_v1.c
new file mode 100644
index 00000000000000..27a73bf7956de9
--- /dev/null
+++ b/fs/quota_v1.c
@@ -0,0 +1,240 @@
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/quota.h>
+#include <linux/dqblk_v1.h>
+#include <linux/quotaio_v1.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+
+#include <asm/uaccess.h>
+#include <asm/byteorder.h>
+
+static void v1_disk2mem_dqblk(struct mem_dqblk *m, struct v1_disk_dqblk *d)
+{
+	m->dqb_ihardlimit = d->dqb_ihardlimit;
+	m->dqb_isoftlimit = d->dqb_isoftlimit;
+	m->dqb_curinodes = d->dqb_curinodes;
+	m->dqb_bhardlimit = d->dqb_bhardlimit;
+	m->dqb_bsoftlimit = d->dqb_bsoftlimit;
+	m->dqb_curspace = ((qsize_t)d->dqb_curblocks) << QUOTABLOCK_BITS;
+	m->dqb_itime = d->dqb_itime;
+	m->dqb_btime = d->dqb_btime;
+}
+
+static void v1_mem2disk_dqblk(struct v1_disk_dqblk *d, struct mem_dqblk *m)
+{
+	d->dqb_ihardlimit = m->dqb_ihardlimit;
+	d->dqb_isoftlimit = m->dqb_isoftlimit;
+	d->dqb_curinodes = m->dqb_curinodes;
+	d->dqb_bhardlimit = m->dqb_bhardlimit;
+	d->dqb_bsoftlimit = m->dqb_bsoftlimit;
+	d->dqb_curblocks = toqb(m->dqb_curspace);
+	d->dqb_itime = m->dqb_itime;
+	d->dqb_btime = m->dqb_btime;
+}
+
+static int v1_read_dqblk(struct dquot *dquot)
+{
+	int type = dquot->dq_type;
+	struct file *filp;
+	mm_segment_t fs;
+	loff_t offset;
+	struct v1_disk_dqblk dqblk;
+
+	filp = sb_dqopt(dquot->dq_sb)->files[type];
+	if (filp == (struct file *)NULL)
+		return -EINVAL;
+
+	memset(&dqblk, 0, sizeof(dqblk));	/* Initialize buffer in case file is too short */
+	/* Now we are sure filp is valid */
+	offset = v1_dqoff(dquot->dq_id);
+	fs = get_fs();
+	set_fs(KERNEL_DS);
+	filp->f_op->read(filp, (char *)&dqblk, sizeof(struct v1_disk_dqblk), &offset);
+	set_fs(fs);
+
+	v1_disk2mem_dqblk(&dquot->dq_dqb, &dqblk);
+	if (dquot->dq_dqb.dqb_bhardlimit == 0 && dquot->dq_dqb.dqb_bsoftlimit == 0 &&
+	    dquot->dq_dqb.dqb_ihardlimit == 0 && dquot->dq_dqb.dqb_isoftlimit == 0)
+		dquot->dq_flags |= DQ_FAKE;
+	dqstats.reads++;
+	return 0;
+}
+
+static int v1_commit_dqblk(struct dquot *dquot)
+{
+	short type = dquot->dq_type;
+	struct file *filp;
+	mm_segment_t fs;
+	loff_t offset;
+	ssize_t ret;
+	struct v1_disk_dqblk dqblk;
+
+	filp = sb_dqopt(dquot->dq_sb)->files[type];
+	offset = v1_dqoff(dquot->dq_id);
+	fs = get_fs();
+	set_fs(KERNEL_DS);
+
+	/*
+	 * Note: clear the DQ_MOD flag unconditionally,
+	 * so we don't loop forever on failure.
+	 */
+	v1_mem2disk_dqblk(&dqblk, &dquot->dq_dqb);
+	dquot->dq_flags &= ~DQ_MOD;
+	if (dquot->dq_id == 0) {
+		dqblk.dqb_btime = sb_dqopt(dquot->dq_sb)->info[type].dqi_bgrace;
+		dqblk.dqb_itime = sb_dqopt(dquot->dq_sb)->info[type].dqi_igrace;
+	}
+	ret = 0;
+	if (filp)
+		ret = filp->f_op->write(filp, (char *)&dqblk,
+					sizeof(struct v1_disk_dqblk), &offset);
+	if (ret != sizeof(struct v1_disk_dqblk)) {
+		printk(KERN_WARNING "VFS: dquota write failed on dev %s\n",
+			kdevname(dquot->dq_dev));
+		if (ret >= 0)
+			ret = -EIO;
+		goto out;
+	}
+	ret = 0;
+
+out:
+	set_fs(fs);
+	dqstats.writes++;
+	return ret;
+}
+
+/* Magics of new quota format */
+#define V2_INITQMAGICS {\
+	0xd9c01f11,     /* USRQUOTA */\
+	0xd9c01927      /* GRPQUOTA */\
+}
+
+/* Header of new quota format */
+struct v2_disk_dqheader {
+	__u32 dqh_magic;        /* Magic number identifying file */
+	__u32 dqh_version;      /* File version */
+};
+
+static int v1_check_quota_file(struct super_block *sb, int type)
+{
+	struct file *f = sb_dqopt(sb)->files[type];
+	struct inode *inode = f->f_dentry->d_inode;
+	ulong blocks;
+	size_t off; 
+	struct v2_disk_dqheader dqhead;
+	mm_segment_t fs;
+	ssize_t size;
+	loff_t offset = 0;
+	static const uint quota_magics[] = V2_INITQMAGICS;
+
+	if (!inode->i_size)
+		return 0;
+	blocks = inode->i_size >> BLOCK_SIZE_BITS;
+	off = inode->i_size & (BLOCK_SIZE - 1);
+	if ((blocks % sizeof(struct v1_disk_dqblk) * BLOCK_SIZE + off) % sizeof(struct v1_disk_dqblk))
+		return 0;
+	/* Doublecheck whether we didn't get file with new format - with old quotactl() this could happen */
+	fs = get_fs();
+	set_fs(KERNEL_DS);
+	size = f->f_op->read(f, (char *)&dqhead, sizeof(struct v2_disk_dqheader), &offset);
+	set_fs(fs);
+	if (size != sizeof(struct v2_disk_dqheader))
+		return 1;	/* Probably not new format */
+	if (le32_to_cpu(dqhead.dqh_magic) != quota_magics[type])
+		return 1;	/* Definitely not new format */
+	printk(KERN_INFO "VFS: %s: Refusing to turn on old quota format on given file. It probably contains newer quota format.\n", kdevname(sb->s_dev));
+        return 0;		/* Seems like a new format file -> refuse it */
+}
+
+static int v1_read_file_info(struct super_block *sb, int type)
+{
+	struct quota_info *dqopt = sb_dqopt(sb);
+	mm_segment_t fs;
+	loff_t offset;
+	struct file *filp = dqopt->files[type];
+	struct v1_disk_dqblk dqblk;
+	int ret;
+
+	down(&dqopt->dqio_sem);
+	offset = v1_dqoff(0);
+	fs = get_fs();
+	set_fs(KERNEL_DS);
+	if ((ret = filp->f_op->read(filp, (char *)&dqblk, sizeof(struct v1_disk_dqblk), &offset)) != sizeof(struct v1_disk_dqblk)) {
+		if (ret >= 0)
+			ret = -EIO;
+		goto out;
+	}
+	ret = 0;
+	dqopt->info[type].dqi_igrace = dqblk.dqb_itime ? dqblk.dqb_itime : MAX_IQ_TIME;
+	dqopt->info[type].dqi_bgrace = dqblk.dqb_btime ? dqblk.dqb_btime : MAX_DQ_TIME;
+out:
+	up(&dqopt->dqio_sem);
+	set_fs(fs);
+	return ret;
+}
+
+static int v1_write_file_info(struct super_block *sb, int type)
+{
+	struct quota_info *dqopt = sb_dqopt(sb);
+	mm_segment_t fs;
+	struct file *filp = dqopt->files[type];
+	struct v1_disk_dqblk dqblk;
+	loff_t offset;
+	int ret;
+
+	down(&dqopt->dqio_sem);
+	dqopt->info[type].dqi_flags &= ~DQF_INFO_DIRTY;
+	offset = v1_dqoff(0);
+	fs = get_fs();
+	set_fs(KERNEL_DS);
+	if ((ret = filp->f_op->read(filp, (char *)&dqblk, sizeof(struct v1_disk_dqblk), &offset)) != sizeof(struct v1_disk_dqblk)) {
+		if (ret >= 0)
+			ret = -EIO;
+		goto out;
+	}
+	dqblk.dqb_itime = dqopt->info[type].dqi_igrace;
+	dqblk.dqb_btime = dqopt->info[type].dqi_bgrace;
+	offset = v1_dqoff(0);
+	ret = filp->f_op->write(filp, (char *)&dqblk, sizeof(struct v1_disk_dqblk), &offset);
+	if (ret == sizeof(struct v1_disk_dqblk))
+		ret = 0;
+	else if (ret > 0)
+		ret = -EIO;
+out:
+	up(&dqopt->dqio_sem);
+	set_fs(fs);
+	return ret;
+}
+
+static struct quota_format_ops v1_format_ops = {
+	check_quota_file:	v1_check_quota_file,
+	read_file_info:		v1_read_file_info,
+	write_file_info:	v1_write_file_info,
+	free_file_info:		NULL,
+	read_dqblk:		v1_read_dqblk,
+	commit_dqblk:		v1_commit_dqblk,
+};
+
+static struct quota_format_type v1_quota_format = {
+	qf_fmt_id:	QFMT_VFS_OLD,
+	qf_ops:		&v1_format_ops,
+	qf_owner:	THIS_MODULE
+};
+
+static int __init init_v1_quota_format(void)
+{
+        return register_quota_format(&v1_quota_format);
+}
+
+static void __exit exit_v1_quota_format(void)
+{
+        unregister_quota_format(&v1_quota_format);
+}
+
+EXPORT_NO_SYMBOLS;
+
+module_init(init_v1_quota_format);
+module_exit(exit_v1_quota_format);
+
diff --git a/fs/quota_v2.c b/fs/quota_v2.c
new file mode 100644
index 00000000000000..87ffecac9e0ed4
--- /dev/null
+++ b/fs/quota_v2.c
@@ -0,0 +1,690 @@
+/*
+ *	vfsv0 quota IO operations on file
+ */
+
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/dqblk_v2.h>
+#include <linux/quotaio_v2.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+
+#include <asm/byteorder.h>
+#include <asm/uaccess.h>
+
+#define __QUOTA_V2_PARANOIA
+
+typedef char *dqbuf_t;
+
+#define GETIDINDEX(id, depth) (((id) >> ((V2_DQTREEDEPTH-(depth)-1)*8)) & 0xff)
+#define GETENTRIES(buf) ((struct v2_disk_dqblk *)(((char *)buf)+sizeof(struct v2_disk_dqdbheader)))
+
+/* Check whether given file is really vfsv0 quotafile */
+static int v2_check_quota_file(struct super_block *sb, int type)
+{
+	struct v2_disk_dqheader dqhead;
+	struct file *f = sb_dqopt(sb)->files[type];
+	mm_segment_t fs;
+	ssize_t size;
+	loff_t offset = 0;
+	static const uint quota_magics[] = V2_INITQMAGICS;
+	static const uint quota_versions[] = V2_INITQVERSIONS;
+ 
+	fs = get_fs();
+	set_fs(KERNEL_DS);
+	size = f->f_op->read(f, (char *)&dqhead, sizeof(struct v2_disk_dqheader), &offset);
+	set_fs(fs);
+	if (size != sizeof(struct v2_disk_dqheader))
+		return 0;
+	if (le32_to_cpu(dqhead.dqh_magic) != quota_magics[type] ||
+	    le32_to_cpu(dqhead.dqh_version) != quota_versions[type])
+		return 0;
+	return 1;
+}
+
+/* Read information header from quota file */
+static int v2_read_file_info(struct super_block *sb, int type)
+{
+	mm_segment_t fs;
+	struct v2_disk_dqinfo dinfo;
+	struct mem_dqinfo *info = sb_dqopt(sb)->info+type;
+	struct file *f = sb_dqopt(sb)->files[type];
+	ssize_t size;
+	loff_t offset = V2_DQINFOOFF;
+
+	fs = get_fs();
+	set_fs(KERNEL_DS);
+	size = f->f_op->read(f, (char *)&dinfo, sizeof(struct v2_disk_dqinfo), &offset);
+	set_fs(fs);
+	if (size != sizeof(struct v2_disk_dqinfo)) {
+		printk(KERN_WARNING "Can't read info structure on device %s.\n",
+			kdevname(f->f_dentry->d_sb->s_dev));
+		return -1;
+	}
+	info->dqi_bgrace = le32_to_cpu(dinfo.dqi_bgrace);
+	info->dqi_igrace = le32_to_cpu(dinfo.dqi_igrace);
+	info->dqi_flags = le32_to_cpu(dinfo.dqi_flags);
+	info->u.v2_i.dqi_blocks = le32_to_cpu(dinfo.dqi_blocks);
+	info->u.v2_i.dqi_free_blk = le32_to_cpu(dinfo.dqi_free_blk);
+	info->u.v2_i.dqi_free_entry = le32_to_cpu(dinfo.dqi_free_entry);
+	return 0;
+}
+
+/* Write information header to quota file */
+static int v2_write_file_info(struct super_block *sb, int type)
+{
+	mm_segment_t fs;
+	struct v2_disk_dqinfo dinfo;
+	struct mem_dqinfo *info = sb_dqopt(sb)->info+type;
+	struct file *f = sb_dqopt(sb)->files[type];
+	ssize_t size;
+	loff_t offset = V2_DQINFOOFF;
+
+	info->dqi_flags &= ~DQF_INFO_DIRTY;
+	dinfo.dqi_bgrace = cpu_to_le32(info->dqi_bgrace);
+	dinfo.dqi_igrace = cpu_to_le32(info->dqi_igrace);
+	dinfo.dqi_flags = cpu_to_le32(info->dqi_flags & DQF_MASK);
+	dinfo.dqi_blocks = cpu_to_le32(info->u.v2_i.dqi_blocks);
+	dinfo.dqi_free_blk = cpu_to_le32(info->u.v2_i.dqi_free_blk);
+	dinfo.dqi_free_entry = cpu_to_le32(info->u.v2_i.dqi_free_entry);
+	fs = get_fs();
+	set_fs(KERNEL_DS);
+	size = f->f_op->write(f, (char *)&dinfo, sizeof(struct v2_disk_dqinfo), &offset);
+	set_fs(fs);
+	if (size != sizeof(struct v2_disk_dqinfo)) {
+		printk(KERN_WARNING "Can't write info structure on device %s.\n",
+			kdevname(f->f_dentry->d_sb->s_dev));
+		return -1;
+	}
+	return 0;
+}
+
+static void disk2memdqb(struct mem_dqblk *m, struct v2_disk_dqblk *d)
+{
+	m->dqb_ihardlimit = le32_to_cpu(d->dqb_ihardlimit);
+	m->dqb_isoftlimit = le32_to_cpu(d->dqb_isoftlimit);
+	m->dqb_curinodes = le32_to_cpu(d->dqb_curinodes);
+	m->dqb_itime = le64_to_cpu(d->dqb_itime);
+	m->dqb_bhardlimit = le32_to_cpu(d->dqb_bhardlimit);
+	m->dqb_bsoftlimit = le32_to_cpu(d->dqb_bsoftlimit);
+	m->dqb_curspace = le64_to_cpu(d->dqb_curspace);
+	m->dqb_btime = le64_to_cpu(d->dqb_btime);
+}
+
+static void mem2diskdqb(struct v2_disk_dqblk *d, struct mem_dqblk *m, qid_t id)
+{
+	d->dqb_ihardlimit = cpu_to_le32(m->dqb_ihardlimit);
+	d->dqb_isoftlimit = cpu_to_le32(m->dqb_isoftlimit);
+	d->dqb_curinodes = cpu_to_le32(m->dqb_curinodes);
+	d->dqb_itime = cpu_to_le64(m->dqb_itime);
+	d->dqb_bhardlimit = cpu_to_le32(m->dqb_bhardlimit);
+	d->dqb_bsoftlimit = cpu_to_le32(m->dqb_bsoftlimit);
+	d->dqb_curspace = cpu_to_le64(m->dqb_curspace);
+	d->dqb_btime = cpu_to_le64(m->dqb_btime);
+	d->dqb_id = cpu_to_le32(id);
+}
+
+static dqbuf_t getdqbuf(void)
+{
+	dqbuf_t buf = kmalloc(V2_DQBLKSIZE, GFP_KERNEL);
+	if (!buf)
+		printk(KERN_WARNING "VFS: Not enough memory for quota buffers.\n");
+	return buf;
+}
+
+static inline void freedqbuf(dqbuf_t buf)
+{
+	kfree(buf);
+}
+
+static ssize_t read_blk(struct file *filp, uint blk, dqbuf_t buf)
+{
+	mm_segment_t fs;
+	ssize_t ret;
+	loff_t offset = blk<<V2_DQBLKSIZE_BITS;
+
+	memset(buf, 0, V2_DQBLKSIZE);
+	fs = get_fs();
+	set_fs(KERNEL_DS);
+	ret = filp->f_op->read(filp, (char *)buf, V2_DQBLKSIZE, &offset);
+	set_fs(fs);
+	return ret;
+}
+
+static ssize_t write_blk(struct file *filp, uint blk, dqbuf_t buf)
+{
+	mm_segment_t fs;
+	ssize_t ret;
+	loff_t offset = blk<<V2_DQBLKSIZE_BITS;
+
+	fs = get_fs();
+	set_fs(KERNEL_DS);
+	ret = filp->f_op->write(filp, (char *)buf, V2_DQBLKSIZE, &offset);
+	set_fs(fs);
+	return ret;
+
+}
+
+/* Remove empty block from list and return it */
+static int get_free_dqblk(struct file *filp, struct mem_dqinfo *info)
+{
+	dqbuf_t buf = getdqbuf();
+	struct v2_disk_dqdbheader *dh = (struct v2_disk_dqdbheader *)buf;
+	int ret, blk;
+
+	if (!buf)
+		return -ENOMEM;
+	if (info->u.v2_i.dqi_free_blk) {
+		blk = info->u.v2_i.dqi_free_blk;
+		if ((ret = read_blk(filp, blk, buf)) < 0)
+			goto out_buf;
+		info->u.v2_i.dqi_free_blk = le32_to_cpu(dh->dqdh_next_free);
+	}
+	else {
+		memset(buf, 0, V2_DQBLKSIZE);
+		if ((ret = write_blk(filp, info->u.v2_i.dqi_blocks, buf)) < 0)	/* Assure block allocation... */
+			goto out_buf;
+		blk = info->u.v2_i.dqi_blocks++;
+	}
+	mark_info_dirty(info);
+	ret = blk;
+out_buf:
+	freedqbuf(buf);
+	return ret;
+}
+
+/* Insert empty block to the list */
+static int put_free_dqblk(struct file *filp, struct mem_dqinfo *info, dqbuf_t buf, uint blk)
+{
+	struct v2_disk_dqdbheader *dh = (struct v2_disk_dqdbheader *)buf;
+	int err;
+
+	dh->dqdh_next_free = cpu_to_le32(info->u.v2_i.dqi_free_blk);
+	dh->dqdh_prev_free = cpu_to_le32(0);
+	dh->dqdh_entries = cpu_to_le16(0);
+	info->u.v2_i.dqi_free_blk = blk;
+	mark_info_dirty(info);
+	if ((err = write_blk(filp, blk, buf)) < 0)	/* Some strange block. We had better leave it... */
+		return err;
+	return 0;
+}
+
+/* Remove given block from the list of blocks with free entries */
+static int remove_free_dqentry(struct file *filp, struct mem_dqinfo *info, dqbuf_t buf, uint blk)
+{
+	dqbuf_t tmpbuf = getdqbuf();
+	struct v2_disk_dqdbheader *dh = (struct v2_disk_dqdbheader *)buf;
+	uint nextblk = le32_to_cpu(dh->dqdh_next_free), prevblk = le32_to_cpu(dh->dqdh_prev_free);
+	int err;
+
+	if (!tmpbuf)
+		return -ENOMEM;
+	if (nextblk) {
+		if ((err = read_blk(filp, nextblk, tmpbuf)) < 0)
+			goto out_buf;
+		((struct v2_disk_dqdbheader *)tmpbuf)->dqdh_prev_free = dh->dqdh_prev_free;
+		if ((err = write_blk(filp, nextblk, tmpbuf)) < 0)
+			goto out_buf;
+	}
+	if (prevblk) {
+		if ((err = read_blk(filp, prevblk, tmpbuf)) < 0)
+			goto out_buf;
+		((struct v2_disk_dqdbheader *)tmpbuf)->dqdh_next_free = dh->dqdh_next_free;
+		if ((err = write_blk(filp, prevblk, tmpbuf)) < 0)
+			goto out_buf;
+	}
+	else {
+		info->u.v2_i.dqi_free_entry = nextblk;
+		mark_info_dirty(info);
+	}
+	freedqbuf(tmpbuf);
+	dh->dqdh_next_free = dh->dqdh_prev_free = cpu_to_le32(0);
+	if (write_blk(filp, blk, buf) < 0)	/* No matter whether write succeeds block is out of list */
+		printk(KERN_ERR "VFS: Can't write block (%u) with free entries.\n", blk);
+	return 0;
+out_buf:
+	freedqbuf(tmpbuf);
+	return err;
+}
+
+/* Insert given block to the beginning of list with free entries */
+static int insert_free_dqentry(struct file *filp, struct mem_dqinfo *info, dqbuf_t buf, uint blk)
+{
+	dqbuf_t tmpbuf = getdqbuf();
+	struct v2_disk_dqdbheader *dh = (struct v2_disk_dqdbheader *)buf;
+	int err;
+
+	if (!tmpbuf)
+		return -ENOMEM;
+	dh->dqdh_next_free = cpu_to_le32(info->u.v2_i.dqi_free_entry);
+	dh->dqdh_prev_free = cpu_to_le32(0);
+	if ((err = write_blk(filp, blk, buf)) < 0)
+		goto out_buf;
+	if (info->u.v2_i.dqi_free_entry) {
+		if ((err = read_blk(filp, info->u.v2_i.dqi_free_entry, tmpbuf)) < 0)
+			goto out_buf;
+		((struct v2_disk_dqdbheader *)tmpbuf)->dqdh_prev_free = cpu_to_le32(blk);
+		if ((err = write_blk(filp, info->u.v2_i.dqi_free_entry, tmpbuf)) < 0)
+			goto out_buf;
+	}
+	freedqbuf(tmpbuf);
+	info->u.v2_i.dqi_free_entry = blk;
+	mark_info_dirty(info);
+	return 0;
+out_buf:
+	freedqbuf(tmpbuf);
+	return err;
+}
+
+/* Find space for dquot */
+static uint find_free_dqentry(struct dquot *dquot, int *err)
+{
+	struct file *filp = sb_dqopt(dquot->dq_sb)->files[dquot->dq_type];
+	struct mem_dqinfo *info = sb_dqopt(dquot->dq_sb)->info+dquot->dq_type;
+	uint blk, i;
+	struct v2_disk_dqdbheader *dh;
+	struct v2_disk_dqblk *ddquot;
+	struct v2_disk_dqblk fakedquot;
+	dqbuf_t buf;
+
+	*err = 0;
+	if (!(buf = getdqbuf())) {
+		*err = -ENOMEM;
+		return 0;
+	}
+	dh = (struct v2_disk_dqdbheader *)buf;
+	ddquot = GETENTRIES(buf);
+	if (info->u.v2_i.dqi_free_entry) {
+		blk = info->u.v2_i.dqi_free_entry;
+		if ((*err = read_blk(filp, blk, buf)) < 0)
+			goto out_buf;
+	}
+	else {
+		blk = get_free_dqblk(filp, info);
+		if ((int)blk < 0) {
+			*err = blk;
+			return 0;
+		}
+		memset(buf, 0, V2_DQBLKSIZE);
+		info->u.v2_i.dqi_free_entry = blk;	/* This is enough as block is already zeroed and entry list is empty... */
+		mark_info_dirty(info);
+	}
+	if (le16_to_cpu(dh->dqdh_entries)+1 >= V2_DQSTRINBLK)	/* Block will be full? */
+		if ((*err = remove_free_dqentry(filp, info, buf, blk)) < 0) {
+			printk(KERN_ERR "VFS: find_free_dqentry(): Can't remove block (%u) from entry free list.\n", blk);
+			goto out_buf;
+		}
+	dh->dqdh_entries = cpu_to_le16(le16_to_cpu(dh->dqdh_entries)+1);
+	memset(&fakedquot, 0, sizeof(struct v2_disk_dqblk));
+	/* Find free structure in block */
+	for (i = 0; i < V2_DQSTRINBLK && memcmp(&fakedquot, ddquot+i, sizeof(struct v2_disk_dqblk)); i++);
+#ifdef __QUOTA_V2_PARANOIA
+	if (i == V2_DQSTRINBLK) {
+		printk(KERN_ERR "VFS: find_free_dqentry(): Data block full but it shouldn't.\n");
+		*err = -EIO;
+		goto out_buf;
+	}
+#endif
+	if ((*err = write_blk(filp, blk, buf)) < 0) {
+		printk(KERN_ERR "VFS: find_free_dqentry(): Can't write quota data block %u.\n", blk);
+		goto out_buf;
+	}
+	dquot->dq_off = (blk<<V2_DQBLKSIZE_BITS)+sizeof(struct v2_disk_dqdbheader)+i*sizeof(struct v2_disk_dqblk);
+	freedqbuf(buf);
+	return blk;
+out_buf:
+	freedqbuf(buf);
+	return 0;
+}
+
+/* Insert reference to structure into the trie */
+static int do_insert_tree(struct dquot *dquot, uint *treeblk, int depth)
+{
+	struct file *filp = sb_dqopt(dquot->dq_sb)->files[dquot->dq_type];
+	struct mem_dqinfo *info = sb_dqopt(dquot->dq_sb)->info + dquot->dq_type;
+	dqbuf_t buf;
+	int ret = 0, newson = 0, newact = 0;
+	u32 *ref;
+	uint newblk;
+
+	if (!(buf = getdqbuf()))
+		return -ENOMEM;
+	if (!*treeblk) {
+		ret = get_free_dqblk(filp, info);
+		if (ret < 0)
+			goto out_buf;
+		*treeblk = ret;
+		memset(buf, 0, V2_DQBLKSIZE);
+		newact = 1;
+	}
+	else {
+		if ((ret = read_blk(filp, *treeblk, buf)) < 0) {
+			printk(KERN_ERR "VFS: Can't read tree quota block %u.\n", *treeblk);
+			goto out_buf;
+		}
+	}
+	ref = (u32 *)buf;
+	newblk = le32_to_cpu(ref[GETIDINDEX(dquot->dq_id, depth)]);
+	if (!newblk)
+		newson = 1;
+	if (depth == V2_DQTREEDEPTH-1) {
+#ifdef __QUOTA_V2_PARANOIA
+		if (newblk) {
+			printk(KERN_ERR "VFS: Inserting already present quota entry (block %u).\n", ref[GETIDINDEX(dquot->dq_id, depth)]);
+			ret = -EIO;
+			goto out_buf;
+		}
+#endif
+		newblk = find_free_dqentry(dquot, &ret);
+	}
+	else
+		ret = do_insert_tree(dquot, &newblk, depth+1);
+	if (newson && ret >= 0) {
+		ref[GETIDINDEX(dquot->dq_id, depth)] = cpu_to_le32(newblk);
+		ret = write_blk(filp, *treeblk, buf);
+	}
+	else if (newact && ret < 0)
+		put_free_dqblk(filp, info, buf, *treeblk);
+out_buf:
+	freedqbuf(buf);
+	return ret;
+}
+
+/* Wrapper for inserting quota structure into tree */
+static inline int dq_insert_tree(struct dquot *dquot)
+{
+	int tmp = V2_DQTREEOFF;
+	return do_insert_tree(dquot, &tmp, 0);
+}
+
+/*
+ *	We don't have to be afraid of deadlocks as we never have quotas on quota files...
+ */
+static int v2_write_dquot(struct dquot *dquot)
+{
+	int type = dquot->dq_type;
+	struct file *filp;
+	mm_segment_t fs;
+	loff_t offset;
+	ssize_t ret;
+	struct v2_disk_dqblk ddquot;
+
+	if (!dquot->dq_off)
+		if ((ret = dq_insert_tree(dquot)) < 0) {
+			printk(KERN_ERR "VFS: Error %d occured while creating quota.\n", ret);
+			return ret;
+		}
+	filp = sb_dqopt(dquot->dq_sb)->files[type];
+	offset = dquot->dq_off;
+	mem2diskdqb(&ddquot, &dquot->dq_dqb, dquot->dq_id);
+	fs = get_fs();
+	set_fs(KERNEL_DS);
+	ret = filp->f_op->write(filp, (char *)&ddquot, sizeof(struct v2_disk_dqblk), &offset);
+	set_fs(fs);
+	if (ret != sizeof(struct v2_disk_dqblk)) {
+		printk(KERN_WARNING "VFS: dquota write failed on dev %s\n", kdevname(dquot->dq_dev));
+		if (ret >= 0)
+			ret = -ENOSPC;
+	}
+	else
+		ret = 0;
+	dqstats.writes++;
+	return ret;
+}
+
+/* Free dquot entry in data block */
+static int free_dqentry(struct dquot *dquot, uint blk)
+{
+	struct file *filp = sb_dqopt(dquot->dq_sb)->files[dquot->dq_type];
+	struct mem_dqinfo *info = sb_dqopt(dquot->dq_sb)->info + dquot->dq_type;
+	struct v2_disk_dqdbheader *dh;
+	dqbuf_t buf = getdqbuf();
+	int ret = 0;
+
+	if (!buf)
+		return -ENOMEM;
+	if (dquot->dq_off >> V2_DQBLKSIZE_BITS != blk) {
+		printk(KERN_ERR "VFS: Quota structure has offset to other block (%u) than it should (%u).\n", blk, (uint)(dquot->dq_off >> V2_DQBLKSIZE_BITS));
+		goto out_buf;
+	}
+	if ((ret = read_blk(filp, blk, buf)) < 0) {
+		printk(KERN_ERR "VFS: Can't read quota data block %u\n", blk);
+		goto out_buf;
+	}
+	dh = (struct v2_disk_dqdbheader *)buf;
+	dh->dqdh_entries = cpu_to_le16(le16_to_cpu(dh->dqdh_entries)-1);
+	if (!le16_to_cpu(dh->dqdh_entries)) {	/* Block got free? */
+		if ((ret = remove_free_dqentry(filp, info, buf, blk)) < 0 ||
+		    (ret = put_free_dqblk(filp, info, buf, blk)) < 0) {
+			printk(KERN_ERR "VFS: Can't move quota data block (%u) to free list.\n", blk);
+			goto out_buf;
+		}
+	}
+	else {
+		memset(buf+(dquot->dq_off & ((1 << V2_DQBLKSIZE_BITS)-1)), 0, sizeof(struct v2_disk_dqblk));
+		if (le16_to_cpu(dh->dqdh_entries) == V2_DQSTRINBLK-1) {
+			/* Insert will write block itself */
+			if ((ret = insert_free_dqentry(filp, info, buf, blk)) < 0) {
+				printk(KERN_ERR "VFS: Can't insert quota data block (%u) to free entry list.\n", blk);
+				goto out_buf;
+			}
+		}
+		else
+			if ((ret = write_blk(filp, blk, buf)) < 0) {
+				printk(KERN_ERR "VFS: Can't write quota data block %u\n", blk);
+				goto out_buf;
+			}
+	}
+	dquot->dq_off = 0;	/* Quota is now unattached */
+out_buf:
+	freedqbuf(buf);
+	return ret;
+}
+
+/* Remove reference to dquot from tree */
+static int remove_tree(struct dquot *dquot, uint *blk, int depth)
+{
+	struct file *filp = sb_dqopt(dquot->dq_sb)->files[dquot->dq_type];
+	struct mem_dqinfo *info = sb_dqopt(dquot->dq_sb)->info + dquot->dq_type;
+	dqbuf_t buf = getdqbuf();
+	int ret = 0;
+	uint newblk;
+	u32 *ref = (u32 *)buf;
+	
+	if (!buf)
+		return -ENOMEM;
+	if ((ret = read_blk(filp, *blk, buf)) < 0) {
+		printk(KERN_ERR "VFS: Can't read quota data block %u\n", *blk);
+		goto out_buf;
+	}
+	newblk = le32_to_cpu(ref[GETIDINDEX(dquot->dq_id, depth)]);
+	if (depth == V2_DQTREEDEPTH-1) {
+		ret = free_dqentry(dquot, newblk);
+		newblk = 0;
+	}
+	else
+		ret = remove_tree(dquot, &newblk, depth+1);
+	if (ret >= 0 && !newblk) {
+		int i;
+		ref[GETIDINDEX(dquot->dq_id, depth)] = cpu_to_le32(0);
+		for (i = 0; i < V2_DQBLKSIZE && !buf[i]; i++);	/* Block got empty? */
+		if (i == V2_DQBLKSIZE) {
+			put_free_dqblk(filp, info, buf, *blk);
+			*blk = 0;
+		}
+		else
+			if ((ret = write_blk(filp, *blk, buf)) < 0)
+				printk(KERN_ERR "VFS: Can't write quota tree block %u.\n", *blk);
+	}
+out_buf:
+	freedqbuf(buf);
+	return ret;	
+}
+
+/* Delete dquot from tree */
+static int v2_delete_dquot(struct dquot *dquot)
+{
+	uint tmp = V2_DQTREEOFF;
+
+	if (!dquot->dq_off)	/* Even not allocated? */
+		return 0;
+	return remove_tree(dquot, &tmp, 0);
+}
+
+/* Find entry in block */
+static loff_t find_block_dqentry(struct dquot *dquot, uint blk)
+{
+	struct file *filp = sb_dqopt(dquot->dq_sb)->files[dquot->dq_type];
+	dqbuf_t buf = getdqbuf();
+	loff_t ret = 0;
+	int i;
+	struct v2_disk_dqblk *ddquot = GETENTRIES(buf);
+
+	if (!buf)
+		return -ENOMEM;
+	if ((ret = read_blk(filp, blk, buf)) < 0) {
+		printk(KERN_ERR "VFS: Can't read quota tree block %u.\n", blk);
+		goto out_buf;
+	}
+	if (dquot->dq_id)
+		for (i = 0; i < V2_DQSTRINBLK && le32_to_cpu(ddquot[i].dqb_id) != dquot->dq_id; i++);
+	else {	/* ID 0 as a bit more complicated searching... */
+		struct v2_disk_dqblk fakedquot;
+
+		memset(&fakedquot, 0, sizeof(struct v2_disk_dqblk));
+		for (i = 0; i < V2_DQSTRINBLK; i++)
+			if (!le32_to_cpu(ddquot[i].dqb_id) && memcmp(&fakedquot, ddquot+i, sizeof(struct v2_disk_dqblk)))
+				break;
+	}
+	if (i == V2_DQSTRINBLK) {
+		printk(KERN_ERR "VFS: Quota for id %u referenced but not present.\n", dquot->dq_id);
+		ret = -EIO;
+		goto out_buf;
+	}
+	else
+		ret = (blk << V2_DQBLKSIZE_BITS) + sizeof(struct v2_disk_dqdbheader) + i * sizeof(struct v2_disk_dqblk);
+out_buf:
+	freedqbuf(buf);
+	return ret;
+}
+
+/* Find entry for given id in the tree */
+static loff_t find_tree_dqentry(struct dquot *dquot, uint blk, int depth)
+{
+	struct file *filp = sb_dqopt(dquot->dq_sb)->files[dquot->dq_type];
+	dqbuf_t buf = getdqbuf();
+	loff_t ret = 0;
+	u32 *ref = (u32 *)buf;
+
+	if (!buf)
+		return -ENOMEM;
+	if ((ret = read_blk(filp, blk, buf)) < 0) {
+		printk(KERN_ERR "VFS: Can't read quota tree block %u.\n", blk);
+		goto out_buf;
+	}
+	ret = 0;
+	blk = le32_to_cpu(ref[GETIDINDEX(dquot->dq_id, depth)]);
+	if (!blk)	/* No reference? */
+		goto out_buf;
+	if (depth < V2_DQTREEDEPTH-1)
+		ret = find_tree_dqentry(dquot, blk, depth+1);
+	else
+		ret = find_block_dqentry(dquot, blk);
+out_buf:
+	freedqbuf(buf);
+	return ret;
+}
+
+/* Find entry for given id in the tree - wrapper function */
+static inline loff_t find_dqentry(struct dquot *dquot)
+{
+	return find_tree_dqentry(dquot, V2_DQTREEOFF, 0);
+}
+
+static int v2_read_dquot(struct dquot *dquot)
+{
+	int type = dquot->dq_type;
+	struct file *filp;
+	mm_segment_t fs;
+	loff_t offset;
+	struct v2_disk_dqblk ddquot;
+	int ret = 0;
+
+	filp = sb_dqopt(dquot->dq_sb)->files[type];
+
+#ifdef __QUOTA_V2_PARANOIA
+	if (!filp || !dquot->dq_sb) {	/* Invalidated quota? */
+		printk(KERN_ERR "VFS: Quota invalidated while reading!\n");
+		return -EIO;
+	}
+#endif
+	offset = find_dqentry(dquot);
+	if (offset <= 0) {	/* Entry not present? */
+		if (offset < 0)
+			printk(KERN_ERR "VFS: Can't read quota structure for id %u.\n", dquot->dq_id);
+		dquot->dq_off = 0;
+		dquot->dq_flags |= DQ_FAKE;
+		memset(&dquot->dq_dqb, 0, sizeof(struct mem_dqblk));
+		ret = offset;
+	}
+	else {
+		dquot->dq_off = offset;
+		fs = get_fs();
+		set_fs(KERNEL_DS);
+		if ((ret = filp->f_op->read(filp, (char *)&ddquot, sizeof(struct v2_disk_dqblk), &offset)) != sizeof(struct v2_disk_dqblk)) {
+			if (ret >= 0)
+				ret = -EIO;
+			printk(KERN_ERR "VFS: Error while reading quota structure for id %u.\n", dquot->dq_id);
+			memset(&ddquot, 0, sizeof(struct v2_disk_dqblk));
+		}
+		else
+			ret = 0;
+		set_fs(fs);
+		disk2memdqb(&dquot->dq_dqb, &ddquot);
+	}
+	dqstats.reads++;
+	return ret;
+}
+
+/* Commit changes of dquot to disk - it might also mean deleting it when quota became fake one and user has no blocks... */
+static int v2_commit_dquot(struct dquot *dquot)
+{
+	/* We clear the flag everytime so we don't loop when there was an IO error... */
+	dquot->dq_flags &= ~DQ_MOD;
+	if (dquot->dq_flags & DQ_FAKE && !(dquot->dq_dqb.dqb_curinodes | dquot->dq_dqb.dqb_curspace))
+		return v2_delete_dquot(dquot);
+	else
+		return v2_write_dquot(dquot);
+}
+
+static struct quota_format_ops v2_format_ops = {
+	check_quota_file:	v2_check_quota_file,
+	read_file_info:		v2_read_file_info,
+	write_file_info:	v2_write_file_info,
+	free_file_info:		NULL,
+	read_dqblk:		v2_read_dquot,
+	commit_dqblk:		v2_commit_dquot,
+};
+
+static struct quota_format_type v2_quota_format = {
+	qf_fmt_id:	QFMT_VFS_V0,
+	qf_ops:		&v2_format_ops,
+	qf_owner:	THIS_MODULE
+};
+
+static int __init init_v2_quota_format(void)
+{
+	return register_quota_format(&v2_quota_format);
+}
+
+static void __exit exit_v2_quota_format(void)
+{
+	unregister_quota_format(&v2_quota_format);
+}
+
+EXPORT_NO_SYMBOLS;
+
+module_init(init_v2_quota_format);
+module_exit(exit_v2_quota_format);
diff --git a/fs/ramfs/Makefile b/fs/ramfs/Makefile
new file mode 100644
index 00000000000000..44ff24f061fc5f
--- /dev/null
+++ b/fs/ramfs/Makefile
@@ -0,0 +1,10 @@
+#
+# Makefile for the linux ramfs routines.
+#
+
+O_TARGET := ramfs.o
+
+obj-y := inode.o
+obj-m := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/ramfs/inode.c b/fs/ramfs/inode.c
new file mode 100644
index 00000000000000..208a520e5bb2ad
--- /dev/null
+++ b/fs/ramfs/inode.c
@@ -0,0 +1,349 @@
+/*
+ * Resizable simple ram filesystem for Linux.
+ *
+ * Copyright (C) 2000 Linus Torvalds.
+ *               2000 Transmeta Corp.
+ *
+ * Usage limits added by David Gibson, Linuxcare Australia.
+ * This file is released under the GPL.
+ */
+
+/*
+ * NOTE! This filesystem is probably most useful
+ * not as a real filesystem, but as an example of
+ * how virtual filesystems can be written.
+ *
+ * It doesn't get much simpler than this. Consider
+ * that this file implements the full semantics of
+ * a POSIX-compliant read-write filesystem.
+ *
+ * Note in particular how the filesystem does not
+ * need to implement any data structures of its own
+ * to keep track of the virtual data: using the VFS
+ * caches is sufficient.
+ */
+
+#include <linux/module.h>
+#include <linux/fs.h>
+#include <linux/pagemap.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/locks.h>
+
+#include <asm/uaccess.h>
+
+/* some random number */
+#define RAMFS_MAGIC	0x858458f6
+
+static struct super_operations ramfs_ops;
+static struct address_space_operations ramfs_aops;
+static struct file_operations ramfs_file_operations;
+static struct inode_operations ramfs_dir_inode_operations;
+
+static int ramfs_statfs(struct super_block *sb, struct statfs *buf)
+{
+	buf->f_type = RAMFS_MAGIC;
+	buf->f_bsize = PAGE_CACHE_SIZE;
+	buf->f_namelen = NAME_MAX;
+	return 0;
+}
+
+/*
+ * Lookup the data. This is trivial - if the dentry didn't already
+ * exist, we know it is negative.
+ */
+static struct dentry * ramfs_lookup(struct inode *dir, struct dentry *dentry)
+{
+	if (dentry->d_name.len > NAME_MAX)
+		return ERR_PTR(-ENAMETOOLONG);
+	d_add(dentry, NULL);
+	return NULL;
+}
+
+/*
+ * Read a page. Again trivial. If it didn't already exist
+ * in the page cache, it is zero-filled.
+ */
+static int ramfs_readpage(struct file *file, struct page * page)
+{
+	if (!Page_Uptodate(page)) {
+		memset(kmap(page), 0, PAGE_CACHE_SIZE);
+		kunmap(page);
+		flush_dcache_page(page);
+		SetPageUptodate(page);
+	}
+	UnlockPage(page);
+	return 0;
+}
+
+static int ramfs_prepare_write(struct file *file, struct page *page, unsigned offset, unsigned to)
+{
+	void *addr = kmap(page);
+	if (!Page_Uptodate(page)) {
+		memset(addr, 0, PAGE_CACHE_SIZE);
+		flush_dcache_page(page);
+		SetPageUptodate(page);
+	}
+	SetPageDirty(page);
+	return 0;
+}
+
+static int ramfs_commit_write(struct file *file, struct page *page, unsigned offset, unsigned to)
+{
+	struct inode *inode = page->mapping->host;
+	loff_t pos = ((loff_t)page->index << PAGE_CACHE_SHIFT) + to;
+
+	kunmap(page);
+	if (pos > inode->i_size)
+		inode->i_size = pos;
+	return 0;
+}
+
+struct inode *ramfs_get_inode(struct super_block *sb, int mode, int dev)
+{
+	struct inode * inode = new_inode(sb);
+
+	if (inode) {
+		inode->i_mode = mode;
+		inode->i_uid = current->fsuid;
+		inode->i_gid = current->fsgid;
+		inode->i_blksize = PAGE_CACHE_SIZE;
+		inode->i_blocks = 0;
+		inode->i_rdev = NODEV;
+		inode->i_mapping->a_ops = &ramfs_aops;
+		inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+		switch (mode & S_IFMT) {
+		default:
+			init_special_inode(inode, mode, dev);
+			break;
+		case S_IFREG:
+			inode->i_fop = &ramfs_file_operations;
+			break;
+		case S_IFDIR:
+			inode->i_op = &ramfs_dir_inode_operations;
+			inode->i_fop = &dcache_dir_ops;
+			break;
+		case S_IFLNK:
+			inode->i_op = &page_symlink_inode_operations;
+			break;
+		}
+	}
+	return inode;
+}
+
+/*
+ * File creation. Allocate an inode, and we're done..
+ */
+static int ramfs_mknod(struct inode *dir, struct dentry *dentry, int mode, int dev)
+{
+	struct inode * inode = ramfs_get_inode(dir->i_sb, mode, dev);
+	int error = -ENOSPC;
+
+	if (inode) {
+		if (dir->i_mode & S_ISGID) {
+			inode->i_gid = dir->i_gid;
+			if (S_ISDIR(mode))
+				inode->i_mode |= S_ISGID;
+		}
+		d_instantiate(dentry, inode);
+		dget(dentry);		/* Extra count - pin the dentry in core */
+		error = 0;
+	}
+	return error;
+}
+
+static int ramfs_mkdir(struct inode * dir, struct dentry * dentry, int mode)
+{
+	return ramfs_mknod(dir, dentry, mode | S_IFDIR, 0);
+}
+
+static int ramfs_create(struct inode *dir, struct dentry *dentry, int mode)
+{
+	return ramfs_mknod(dir, dentry, mode | S_IFREG, 0);
+}
+
+/*
+ * Link a file..
+ */
+static int ramfs_link(struct dentry *old_dentry, struct inode * dir, struct dentry * dentry)
+{
+	struct inode *inode = old_dentry->d_inode;
+
+	if (S_ISDIR(inode->i_mode))
+		return -EPERM;
+
+	inode->i_nlink++;
+	atomic_inc(&inode->i_count);	/* New dentry reference */
+	dget(dentry);		/* Extra pinning count for the created dentry */
+	d_instantiate(dentry, inode);
+	return 0;
+}
+
+static inline int ramfs_positive(struct dentry *dentry)
+{
+	return dentry->d_inode && !d_unhashed(dentry);
+}
+
+/*
+ * Check that a directory is empty (this works
+ * for regular files too, they'll just always be
+ * considered empty..).
+ *
+ * Note that an empty directory can still have
+ * children, they just all have to be negative..
+ */
+static int ramfs_empty(struct dentry *dentry)
+{
+	struct list_head *list;
+
+	spin_lock(&dcache_lock);
+	list = dentry->d_subdirs.next;
+
+	while (list != &dentry->d_subdirs) {
+		struct dentry *de = list_entry(list, struct dentry, d_child);
+
+		if (ramfs_positive(de)) {
+			spin_unlock(&dcache_lock);
+			return 0;
+		}
+		list = list->next;
+	}
+	spin_unlock(&dcache_lock);
+	return 1;
+}
+
+/*
+ * This works for both directories and regular files.
+ * (non-directories will always have empty subdirs)
+ */
+static int ramfs_unlink(struct inode * dir, struct dentry *dentry)
+{
+	int retval = -ENOTEMPTY;
+
+	if (ramfs_empty(dentry)) {
+		struct inode *inode = dentry->d_inode;
+
+		inode->i_nlink--;
+		dput(dentry);			/* Undo the count from "create" - this does all the work */
+		retval = 0;
+	}
+	return retval;
+}
+
+#define ramfs_rmdir ramfs_unlink
+
+/*
+ * The VFS layer already does all the dentry stuff for rename,
+ * we just have to decrement the usage count for the target if
+ * it exists so that the VFS layer correctly free's it when it
+ * gets overwritten.
+ */
+static int ramfs_rename(struct inode * old_dir, struct dentry *old_dentry, struct inode * new_dir,struct dentry *new_dentry)
+{
+	int error = -ENOTEMPTY;
+
+	if (ramfs_empty(new_dentry)) {
+		struct inode *inode = new_dentry->d_inode;
+		if (inode) {
+			inode->i_nlink--;
+			dput(new_dentry);
+		}
+		error = 0;
+	}
+	return error;
+}
+
+static int ramfs_symlink(struct inode * dir, struct dentry *dentry, const char * symname)
+{
+	int error;
+
+	error = ramfs_mknod(dir, dentry, S_IFLNK | S_IRWXUGO, 0);
+	if (!error) {
+		int l = strlen(symname)+1;
+		struct inode *inode = dentry->d_inode;
+		error = block_symlink(inode, symname, l);
+	}
+	return error;
+}
+
+static int ramfs_sync_file(struct file * file, struct dentry *dentry, int datasync)
+{
+	return 0;
+}
+
+static struct address_space_operations ramfs_aops = {
+	readpage:	ramfs_readpage,
+	writepage:	fail_writepage,
+	prepare_write:	ramfs_prepare_write,
+	commit_write:	ramfs_commit_write
+};
+
+static struct file_operations ramfs_file_operations = {
+	read:		generic_file_read,
+	write:		generic_file_write,
+	mmap:		generic_file_mmap,
+	fsync:		ramfs_sync_file,
+};
+
+static struct inode_operations ramfs_dir_inode_operations = {
+	create:		ramfs_create,
+	lookup:		ramfs_lookup,
+	link:		ramfs_link,
+	unlink:		ramfs_unlink,
+	symlink:	ramfs_symlink,
+	mkdir:		ramfs_mkdir,
+	rmdir:		ramfs_rmdir,
+	mknod:		ramfs_mknod,
+	rename:		ramfs_rename,
+};
+
+static struct super_operations ramfs_ops = {
+	statfs:		ramfs_statfs,
+	put_inode:	force_delete,
+};
+
+static struct super_block *ramfs_read_super(struct super_block * sb, void * data, int silent)
+{
+	struct inode * inode;
+	struct dentry * root;
+
+	sb->s_blocksize = PAGE_CACHE_SIZE;
+	sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
+	sb->s_magic = RAMFS_MAGIC;
+	sb->s_op = &ramfs_ops;
+	inode = ramfs_get_inode(sb, S_IFDIR | 0755, 0);
+	if (!inode)
+		return NULL;
+
+	root = d_alloc_root(inode);
+	if (!root) {
+		iput(inode);
+		return NULL;
+	}
+	sb->s_root = root;
+	return sb;
+}
+
+static DECLARE_FSTYPE(ramfs_fs_type, "ramfs", ramfs_read_super, FS_LITTER);
+static DECLARE_FSTYPE(rootfs_fs_type, "rootfs", ramfs_read_super, FS_NOMOUNT|FS_LITTER);
+
+static int __init init_ramfs_fs(void)
+{
+	return register_filesystem(&ramfs_fs_type);
+}
+
+static void __exit exit_ramfs_fs(void)
+{
+	unregister_filesystem(&ramfs_fs_type);
+}
+
+module_init(init_ramfs_fs)
+module_exit(exit_ramfs_fs)
+
+int __init init_rootfs(void)
+{
+	return register_filesystem(&rootfs_fs_type);
+}
+
+MODULE_LICENSE("GPL");
+
diff --git a/fs/read_write.c b/fs/read_write.c
new file mode 100644
index 00000000000000..b0026c4ae31505
--- /dev/null
+++ b/fs/read_write.c
@@ -0,0 +1,452 @@
+/*
+ *  linux/fs/read_write.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *  Minor pieces Copyright (C) 2002 Red Hat Inc, All Rights Reserved
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/slab.h> 
+#include <linux/stat.h>
+#include <linux/fcntl.h>
+#include <linux/file.h>
+#include <linux/uio.h>
+#include <linux/smp_lock.h>
+#include <linux/dnotify.h>
+
+#include <asm/uaccess.h>
+
+struct file_operations generic_ro_fops = {
+	llseek:		generic_file_llseek,
+	read:		generic_file_read,
+	mmap:		generic_file_mmap,
+};
+
+ssize_t generic_read_dir(struct file *filp, char *buf, size_t siz, loff_t *ppos)
+{
+	return -EISDIR;
+}
+
+int rw_verify_area(int read_write, struct file *file, loff_t *ppos, size_t count)
+{
+	struct inode *inode;
+	loff_t pos;
+
+	if (unlikely(count > file->f_maxcount))
+		goto Einval;
+
+	pos = *ppos;
+
+	if (unlikely((pos < 0) || (loff_t) (pos + count) < 0))
+		goto Einval;
+
+	inode = file->f_dentry->d_inode;
+	if (inode->i_flock && MANDATORY_LOCK(inode))
+		return locks_mandatory_area(read_write == READ ? FLOCK_VERIFY_READ : FLOCK_VERIFY_WRITE, inode, file, *ppos, count);
+	return 0;
+
+Einval:
+	return -EINVAL;
+}
+
+loff_t generic_file_llseek(struct file *file, loff_t offset, int origin)
+{
+	long long retval;
+
+	switch (origin) {
+		case 2:
+			offset += file->f_dentry->d_inode->i_size;
+			break;
+		case 1:
+			offset += file->f_pos;
+	}
+	retval = -EINVAL;
+	if (offset>=0 && offset<=file->f_dentry->d_inode->i_sb->s_maxbytes) {
+		if (offset != file->f_pos) {
+			file->f_pos = offset;
+			file->f_reada = 0;
+			file->f_version = ++event;
+		}
+		retval = offset;
+	}
+	return retval;
+}
+
+loff_t no_llseek(struct file *file, loff_t offset, int origin)
+{
+	return -ESPIPE;
+}
+
+loff_t default_llseek(struct file *file, loff_t offset, int origin)
+{
+	long long retval;
+
+	switch (origin) {
+		case 2:
+			offset += file->f_dentry->d_inode->i_size;
+			break;
+		case 1:
+			offset += file->f_pos;
+	}
+	retval = -EINVAL;
+	if (offset >= 0) {
+		if (offset != file->f_pos) {
+			file->f_pos = offset;
+			file->f_reada = 0;
+			file->f_version = ++event;
+		}
+		retval = offset;
+	}
+	return retval;
+}
+
+static inline loff_t llseek(struct file *file, loff_t offset, int origin)
+{
+	loff_t (*fn)(struct file *, loff_t, int);
+	loff_t retval;
+
+	fn = default_llseek;
+	if (file->f_op && file->f_op->llseek)
+		fn = file->f_op->llseek;
+	lock_kernel();
+	retval = fn(file, offset, origin);
+	unlock_kernel();
+	return retval;
+}
+
+asmlinkage off_t sys_lseek(unsigned int fd, off_t offset, unsigned int origin)
+{
+	off_t retval;
+	struct file * file;
+
+	retval = -EBADF;
+	file = fget(fd);
+	if (!file)
+		goto bad;
+	retval = -EINVAL;
+	if (origin <= 2) {
+		loff_t res = llseek(file, offset, origin);
+		retval = res;
+		if (res != (loff_t)retval)
+			retval = -EOVERFLOW;	/* LFS: should only happen on 32 bit platforms */
+	}
+	fput(file);
+bad:
+	return retval;
+}
+
+#if !defined(__alpha__)
+asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high,
+			   unsigned long offset_low, loff_t * result,
+			   unsigned int origin)
+{
+	int retval;
+	struct file * file;
+	loff_t offset;
+
+	retval = -EBADF;
+	file = fget(fd);
+	if (!file)
+		goto bad;
+	retval = -EINVAL;
+	if (origin > 2)
+		goto out_putf;
+
+	offset = llseek(file, ((loff_t) offset_high << 32) | offset_low,
+			origin);
+
+	retval = (int)offset;
+	if (offset >= 0) {
+		retval = -EFAULT;
+		if (!copy_to_user(result, &offset, sizeof(offset)))
+			retval = 0;
+	}
+out_putf:
+	fput(file);
+bad:
+	return retval;
+}
+#endif
+
+asmlinkage ssize_t sys_read(unsigned int fd, char * buf, size_t count)
+{
+	ssize_t ret;
+	struct file * file;
+
+	ret = -EBADF;
+	file = fget(fd);
+	if (file) {
+		if (file->f_mode & FMODE_READ) {
+			ret = rw_verify_area(READ, file, &file->f_pos, count);
+
+			if (!ret) {
+				ssize_t (*read)(struct file *, char *, size_t, loff_t *);
+				ret = -EINVAL;
+				if (file->f_op && (read = file->f_op->read) != NULL)
+					ret = read(file, buf, count, &file->f_pos);
+			}
+		}
+		if (ret > 0)
+			dnotify_parent(file->f_dentry, DN_ACCESS);
+		fput(file);
+	}
+	return ret;
+}
+
+asmlinkage ssize_t sys_write(unsigned int fd, const char * buf, size_t count)
+{
+	ssize_t ret;
+	struct file * file;
+
+	ret = -EBADF;
+	file = fget(fd);
+	if (file) {
+		if (file->f_mode & FMODE_WRITE) {
+			ret = rw_verify_area(WRITE, file, &file->f_pos, count);
+			if (!ret) {
+				ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
+				ret = -EINVAL;
+				if (file->f_op && (write = file->f_op->write) != NULL)
+					ret = write(file, buf, count, &file->f_pos);
+			}
+		}
+		if (ret > 0)
+			dnotify_parent(file->f_dentry, DN_MODIFY);
+		fput(file);
+	}
+	return ret;
+}
+
+
+static ssize_t do_readv_writev(int type, struct file *file,
+			       const struct iovec * vector,
+			       unsigned long count)
+{
+	typedef ssize_t (*io_fn_t)(struct file *, char *, size_t, loff_t *);
+	typedef ssize_t (*iov_fn_t)(struct file *, const struct iovec *, unsigned long, loff_t *);
+
+	size_t tot_len;
+	struct iovec iovstack[UIO_FASTIOV];
+	struct iovec *iov=iovstack;
+	ssize_t ret, i;
+	io_fn_t fn;
+	iov_fn_t fnv;
+
+	/*
+	 * First get the "struct iovec" from user memory and
+	 * verify all the pointers
+	 */
+	ret = 0;
+	if (!count)
+		goto out_nofree;
+	ret = -EINVAL;
+	if (count > UIO_MAXIOV)
+		goto out_nofree;
+	if (!file->f_op)
+		goto out_nofree;
+	if (count > UIO_FASTIOV) {
+		ret = -ENOMEM;
+		iov = kmalloc(count*sizeof(struct iovec), GFP_KERNEL);
+		if (!iov)
+			goto out_nofree;
+	}
+	ret = -EFAULT;
+	if (copy_from_user(iov, vector, count*sizeof(*vector)))
+		goto out;
+
+	/*
+	 * Single unix specification:
+	 * We should -EINVAL if an element length is not >= 0 and fitting an ssize_t
+	 * The total length is fitting an ssize_t
+	 *
+	 * Be careful here because iov_len is a size_t not an ssize_t
+	 */
+	 
+	tot_len = 0;
+	ret = -EINVAL;
+	for (i = 0 ; i < count ; i++) {
+		ssize_t len = (ssize_t) iov[i].iov_len;
+		if (len < 0)	/* size_t not fitting an ssize_t .. */
+			goto out;
+		tot_len += len;
+		/* We must do this work unsigned - signed overflow is
+		   undefined and gcc 3.2 now uses that fact sometimes... 
+		   
+		   FIXME: put in a proper limits.h for each platform */
+#if BITS_PER_LONG==64
+		if (tot_len > 0x7FFFFFFFFFFFFFFFUL)
+#else
+		if (tot_len > 0x7FFFFFFFUL)
+#endif		
+			goto out;
+	}
+
+	/* VERIFY_WRITE actually means a read, as we write to user space */
+	ret = rw_verify_area((type == VERIFY_WRITE ? READ : WRITE),
+				file, &file->f_pos, tot_len);
+	if (ret) 
+		goto out;
+
+	fnv = (type == VERIFY_WRITE ? file->f_op->readv : file->f_op->writev);
+	if (fnv) {
+		ret = fnv(file, iov, count, &file->f_pos);
+		goto out;
+	}
+
+	/* VERIFY_WRITE actually means a read, as we write to user space */
+	fn = (type == VERIFY_WRITE ? file->f_op->read :
+	      (io_fn_t) file->f_op->write);
+
+	ret = 0;
+	vector = iov;
+	while (count > 0) {
+		void * base;
+		size_t len;
+		ssize_t nr;
+
+		base = vector->iov_base;
+		len = vector->iov_len;
+		vector++;
+		count--;
+
+		nr = fn(file, base, len, &file->f_pos);
+
+		if (nr < 0) {
+			if (!ret) ret = nr;
+			break;
+		}
+		ret += nr;
+		if (nr != len)
+			break;
+	}
+
+out:
+	if (iov != iovstack)
+		kfree(iov);
+out_nofree:
+	/* VERIFY_WRITE actually means a read, as we write to user space */
+	if ((ret + (type == VERIFY_WRITE)) > 0)
+		dnotify_parent(file->f_dentry,
+			(type == VERIFY_WRITE) ? DN_ACCESS : DN_MODIFY);
+	return ret;
+}
+
+asmlinkage ssize_t sys_readv(unsigned long fd, const struct iovec * vector,
+			     unsigned long count)
+{
+	struct file * file;
+	ssize_t ret;
+
+
+	ret = -EBADF;
+	file = fget(fd);
+	if (!file)
+		goto bad_file;
+	if (file->f_op && (file->f_mode & FMODE_READ) &&
+	    (file->f_op->readv || file->f_op->read))
+		ret = do_readv_writev(VERIFY_WRITE, file, vector, count);
+	fput(file);
+
+bad_file:
+	return ret;
+}
+
+asmlinkage ssize_t sys_writev(unsigned long fd, const struct iovec * vector,
+			      unsigned long count)
+{
+	struct file * file;
+	ssize_t ret;
+
+
+	ret = -EBADF;
+	file = fget(fd);
+	if (!file)
+		goto bad_file;
+	if (file->f_op && (file->f_mode & FMODE_WRITE) &&
+	    (file->f_op->writev || file->f_op->write))
+		ret = do_readv_writev(VERIFY_READ, file, vector, count);
+	fput(file);
+
+bad_file:
+	return ret;
+}
+
+/* From the Single Unix Spec: pread & pwrite act like lseek to pos + op +
+   lseek back to original location.  They fail just like lseek does on
+   non-seekable files.  */
+
+asmlinkage ssize_t sys_pread(unsigned int fd, char * buf,
+			     size_t count, loff_t pos)
+{
+	ssize_t ret;
+	struct file * file;
+	ssize_t (*read)(struct file *, char *, size_t, loff_t *);
+
+	ret = -EBADF;
+	file = fget(fd);
+	if (!file)
+		goto bad_file;
+	if (!(file->f_mode & FMODE_READ))
+		goto out;
+	ret = rw_verify_area(READ, file, &pos, count);
+
+	if (ret)
+		goto out;
+	ret = -EINVAL;
+	if (!file->f_op || !(read = file->f_op->read))
+		goto out;
+	if (pos < 0)
+		goto out;
+	ret = read(file, buf, count, &pos);
+	if (ret > 0)
+		dnotify_parent(file->f_dentry, DN_ACCESS);
+out:
+	fput(file);
+bad_file:
+	return ret;
+}
+
+asmlinkage ssize_t sys_pwrite(unsigned int fd, const char * buf,
+			      size_t count, loff_t pos)
+{
+	ssize_t ret;
+	struct file * file;
+	ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
+
+	ret = -EBADF;
+	file = fget(fd);
+	if (!file)
+		goto bad_file;
+	if (!(file->f_mode & FMODE_WRITE))
+		goto out;
+	ret = rw_verify_area(WRITE, file, &pos, count);
+
+	if (ret)
+		goto out;
+	ret = -EINVAL;
+	if (!file->f_op || !(write = file->f_op->write))
+		goto out;
+	if (pos < 0)
+		goto out;
+
+	ret = write(file, buf, count, &pos);
+	if (ret > 0)
+		dnotify_parent(file->f_dentry, DN_MODIFY);
+out:
+	fput(file);
+bad_file:
+	return ret;
+}
diff --git a/fs/readdir.c b/fs/readdir.c
new file mode 100644
index 00000000000000..5e85174732609e
--- /dev/null
+++ b/fs/readdir.c
@@ -0,0 +1,389 @@
+/*
+ *  linux/fs/readdir.c
+ *
+ *  Copyright (C) 1995  Linus Torvalds
+ */
+
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/errno.h>
+#include <linux/stat.h>
+#include <linux/file.h>
+#include <linux/smp_lock.h>
+
+#include <asm/uaccess.h>
+
+int vfs_readdir(struct file *file, filldir_t filler, void *buf)
+{
+	struct inode *inode = file->f_dentry->d_inode;
+	int res = -ENOTDIR;
+	if (!file->f_op || !file->f_op->readdir)
+		goto out;
+	down(&inode->i_sem);
+	down(&inode->i_zombie);
+	res = -ENOENT;
+	if (!IS_DEADDIR(inode)) {
+		lock_kernel();
+		res = file->f_op->readdir(file, buf, filler);
+		unlock_kernel();
+	}
+	up(&inode->i_zombie);
+	up(&inode->i_sem);
+out:
+	return res;
+}
+
+int dcache_dir_open(struct inode *inode, struct file *file)
+{
+	static struct qstr cursor_name = {len:1, name:"."};
+
+	file->private_data = d_alloc(file->f_dentry, &cursor_name);
+
+	return file->private_data ? 0 : -ENOMEM;
+}
+
+int dcache_dir_close(struct inode *inode, struct file *file)
+{
+	dput(file->private_data);
+	return 0;
+}
+
+loff_t dcache_dir_lseek(struct file *file, loff_t offset, int origin)
+{
+	down(&file->f_dentry->d_inode->i_sem);
+	switch (origin) {
+		case 1:
+			offset += file->f_pos;
+		case 0:
+			if (offset >= 0)
+				break;
+		default:
+			up(&file->f_dentry->d_inode->i_sem);
+			return -EINVAL;
+	}
+	if (offset != file->f_pos) {
+		file->f_pos = offset;
+		if (file->f_pos >= 2) {
+			struct list_head *p;
+			struct dentry *cursor = file->private_data;
+			loff_t n = file->f_pos - 2;
+
+			spin_lock(&dcache_lock);
+			list_del(&cursor->d_child);
+			p = file->f_dentry->d_subdirs.next;
+			while (n && p != &file->f_dentry->d_subdirs) {
+				struct dentry *next;
+				next = list_entry(p, struct dentry, d_child);
+				if (!list_empty(&next->d_hash) && next->d_inode)
+					n--;
+				p = p->next;
+			}
+			list_add_tail(&cursor->d_child, p);
+			spin_unlock(&dcache_lock);
+		}
+	}
+	up(&file->f_dentry->d_inode->i_sem);
+	return offset;
+}
+
+int dcache_dir_fsync(struct file * file, struct dentry *dentry, int datasync)
+{
+	return 0;
+}
+
+/*
+ * Directory is locked and all positive dentries in it are safe, since
+ * for ramfs-type trees they can't go away without unlink() or rmdir(),
+ * both impossible due to the lock on directory.
+ */
+
+int dcache_readdir(struct file * filp, void * dirent, filldir_t filldir)
+{
+	struct dentry *dentry = filp->f_dentry;
+	struct dentry *cursor = filp->private_data;
+	struct list_head *p, *q = &cursor->d_child;
+	ino_t ino;
+	int i = filp->f_pos;
+
+	switch (i) {
+		case 0:
+			ino = dentry->d_inode->i_ino;
+			if (filldir(dirent, ".", 1, i, ino, DT_DIR) < 0)
+				break;
+			filp->f_pos++;
+			i++;
+			/* fallthrough */
+		case 1:
+			spin_lock(&dcache_lock);
+			ino = dentry->d_parent->d_inode->i_ino;
+			spin_unlock(&dcache_lock);
+			if (filldir(dirent, "..", 2, i, ino, DT_DIR) < 0)
+				break;
+			filp->f_pos++;
+			i++;
+			/* fallthrough */
+		default:
+			spin_lock(&dcache_lock);
+			if (filp->f_pos == 2) {
+				list_del(q);
+				list_add(q, &dentry->d_subdirs);
+			}
+			for (p=q->next; p != &dentry->d_subdirs; p=p->next) {
+				struct dentry *next;
+				next = list_entry(p, struct dentry, d_child);
+				if (list_empty(&next->d_hash) || !next->d_inode)
+					continue;
+
+				spin_unlock(&dcache_lock);
+				if (filldir(dirent, next->d_name.name, next->d_name.len, filp->f_pos, next->d_inode->i_ino, DT_UNKNOWN) < 0)
+					return 0;
+				spin_lock(&dcache_lock);
+				/* next is still alive */
+				list_del(q);
+				list_add(q, p);
+				p = q;
+				filp->f_pos++;
+			}
+			spin_unlock(&dcache_lock);
+	}
+	UPDATE_ATIME(dentry->d_inode);
+	return 0;
+}
+
+struct file_operations dcache_dir_ops = {
+	open:		dcache_dir_open,
+	release:	dcache_dir_close,
+	llseek:		dcache_dir_lseek,
+	read:		generic_read_dir,
+	readdir:	dcache_readdir,
+	fsync:		dcache_dir_fsync,
+};
+
+/*
+ * Traditional linux readdir() handling..
+ *
+ * "count=1" is a special case, meaning that the buffer is one
+ * dirent-structure in size and that the code can't handle more
+ * anyway. Thus the special "fillonedir()" function for that
+ * case (the low-level handlers don't need to care about this).
+ */
+#define NAME_OFFSET(de) ((int) ((de)->d_name - (char *) (de)))
+#define ROUND_UP(x) (((x)+sizeof(long)-1) & ~(sizeof(long)-1))
+
+#ifndef __ia64__
+
+struct old_linux_dirent {
+	unsigned long	d_ino;
+	unsigned long	d_offset;
+	unsigned short	d_namlen;
+	char		d_name[1];
+};
+
+struct readdir_callback {
+	struct old_linux_dirent * dirent;
+	int count;
+};
+
+static int fillonedir(void * __buf, const char * name, int namlen, loff_t offset,
+		      ino_t ino, unsigned int d_type)
+{
+	struct readdir_callback * buf = (struct readdir_callback *) __buf;
+	struct old_linux_dirent * dirent;
+
+	if (buf->count)
+		return -EINVAL;
+	buf->count++;
+	dirent = buf->dirent;
+	put_user(ino, &dirent->d_ino);
+	put_user(offset, &dirent->d_offset);
+	put_user(namlen, &dirent->d_namlen);
+	copy_to_user(dirent->d_name, name, namlen);
+	put_user(0, dirent->d_name + namlen);
+	return 0;
+}
+
+asmlinkage int old_readdir(unsigned int fd, void * dirent, unsigned int count)
+{
+	int error;
+	struct file * file;
+	struct readdir_callback buf;
+
+	error = -EBADF;
+	file = fget(fd);
+	if (!file)
+		goto out;
+
+	buf.count = 0;
+	buf.dirent = dirent;
+
+	error = vfs_readdir(file, fillonedir, &buf);
+	if (error >= 0)
+		error = buf.count;
+
+	fput(file);
+out:
+	return error;
+}
+
+#endif /* !__ia64__ */
+
+/*
+ * New, all-improved, singing, dancing, iBCS2-compliant getdents()
+ * interface. 
+ */
+struct linux_dirent {
+	unsigned long	d_ino;
+	unsigned long	d_off;
+	unsigned short	d_reclen;
+	char		d_name[1];
+};
+
+struct getdents_callback {
+	struct linux_dirent * current_dir;
+	struct linux_dirent * previous;
+	int count;
+	int error;
+};
+
+static int filldir(void * __buf, const char * name, int namlen, loff_t offset,
+		   ino_t ino, unsigned int d_type)
+{
+	struct linux_dirent * dirent;
+	struct getdents_callback * buf = (struct getdents_callback *) __buf;
+	int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1);
+
+	buf->error = -EINVAL;	/* only used if we fail.. */
+	if (reclen > buf->count)
+		return -EINVAL;
+	dirent = buf->previous;
+	if (dirent)
+		put_user(offset, &dirent->d_off);
+	dirent = buf->current_dir;
+	buf->previous = dirent;
+	put_user(ino, &dirent->d_ino);
+	put_user(reclen, &dirent->d_reclen);
+	copy_to_user(dirent->d_name, name, namlen);
+	put_user(0, dirent->d_name + namlen);
+	dirent = (void *)dirent + reclen;
+	buf->current_dir = dirent;
+	buf->count -= reclen;
+	return 0;
+}
+
+asmlinkage long sys_getdents(unsigned int fd, void * dirent, unsigned int count)
+{
+	struct file * file;
+	struct linux_dirent * lastdirent;
+	struct getdents_callback buf;
+	int error;
+
+	error = -EBADF;
+	file = fget(fd);
+	if (!file)
+		goto out;
+
+	buf.current_dir = (struct linux_dirent *) dirent;
+	buf.previous = NULL;
+	buf.count = count;
+	buf.error = 0;
+
+	error = vfs_readdir(file, filldir, &buf);
+	if (error < 0)
+		goto out_putf;
+	error = buf.error;
+	lastdirent = buf.previous;
+	if (lastdirent) {
+		put_user(file->f_pos, &lastdirent->d_off);
+		error = count - buf.count;
+	}
+
+out_putf:
+	fput(file);
+out:
+	return error;
+}
+
+/*
+ * And even better one including d_type field and 64bit d_ino and d_off.
+ */
+struct linux_dirent64 {
+	u64		d_ino;
+	s64		d_off;
+	unsigned short	d_reclen;
+	unsigned char	d_type;
+	char		d_name[0];
+};
+
+#define ROUND_UP64(x) (((x)+sizeof(u64)-1) & ~(sizeof(u64)-1))
+
+struct getdents_callback64 {
+	struct linux_dirent64 * current_dir;
+	struct linux_dirent64 * previous;
+	int count;
+	int error;
+};
+
+static int filldir64(void * __buf, const char * name, int namlen, loff_t offset,
+		     ino_t ino, unsigned int d_type)
+{
+	struct linux_dirent64 * dirent, d;
+	struct getdents_callback64 * buf = (struct getdents_callback64 *) __buf;
+	int reclen = ROUND_UP64(NAME_OFFSET(dirent) + namlen + 1);
+
+	buf->error = -EINVAL;	/* only used if we fail.. */
+	if (reclen > buf->count)
+		return -EINVAL;
+	dirent = buf->previous;
+	if (dirent) {
+		d.d_off = offset;
+		copy_to_user(&dirent->d_off, &d.d_off, sizeof(d.d_off));
+	}
+	dirent = buf->current_dir;
+	buf->previous = dirent;
+	memset(&d, 0, NAME_OFFSET(&d));
+	d.d_ino = ino;
+	d.d_reclen = reclen;
+	d.d_type = d_type;
+	copy_to_user(dirent, &d, NAME_OFFSET(&d));
+	copy_to_user(dirent->d_name, name, namlen);
+	put_user(0, dirent->d_name + namlen);
+	dirent = (void *)dirent + reclen;
+	buf->current_dir = dirent;
+	buf->count -= reclen;
+	return 0;
+}
+
+asmlinkage long sys_getdents64(unsigned int fd, void * dirent, unsigned int count)
+{
+	struct file * file;
+	struct linux_dirent64 * lastdirent;
+	struct getdents_callback64 buf;
+	int error;
+
+	error = -EBADF;
+	file = fget(fd);
+	if (!file)
+		goto out;
+
+	buf.current_dir = (struct linux_dirent64 *) dirent;
+	buf.previous = NULL;
+	buf.count = count;
+	buf.error = 0;
+
+	error = vfs_readdir(file, filldir64, &buf);
+	if (error < 0)
+		goto out_putf;
+	error = buf.error;
+	lastdirent = buf.previous;
+	if (lastdirent) {
+		struct linux_dirent64 d;
+		d.d_off = file->f_pos;
+		copy_to_user(&lastdirent->d_off, &d.d_off, sizeof(d.d_off));
+		error = count - buf.count;
+	}
+
+out_putf:
+	fput(file);
+out:
+	return error;
+}
diff --git a/fs/reiserfs/Makefile b/fs/reiserfs/Makefile
new file mode 100644
index 00000000000000..1ea70777f5c294
--- /dev/null
+++ b/fs/reiserfs/Makefile
@@ -0,0 +1,30 @@
+#
+# Makefile for the linux reiser-filesystem routines.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile...
+
+O_TARGET := reiserfs.o
+obj-y   := bitmap.o do_balan.o namei.o inode.o file.o dir.o fix_node.o super.o prints.o objectid.o \
+lbalance.o ibalance.o stree.o hashes.o buffer2.o tail_conversion.o journal.o resize.o item_ops.o ioctl.o procfs.o
+
+obj-m   := $(O_TARGET)
+
+# gcc -O2 (the kernel default)  is overaggressive on ppc32 when many inline
+# functions are used.  This causes the compiler to advance the stack
+# pointer out of the available stack space, corrupting kernel space,
+# and causing a panic. Since this behavior only affects ppc32, this ifeq
+# will work around it. If any other architecture displays this behavior,
+# add it here.
+ifeq ($(CONFIG_PPC32),y)
+EXTRA_CFLAGS := -O1
+endif
+
+include $(TOPDIR)/Rules.make
+
+TAGS:
+	etags *.c
+
diff --git a/fs/reiserfs/README b/fs/reiserfs/README
new file mode 100644
index 00000000000000..90e1670e4e6f5a
--- /dev/null
+++ b/fs/reiserfs/README
@@ -0,0 +1,161 @@
+[LICENSING] 
+
+ReiserFS is hereby licensed under the GNU General
+Public License version 2.
+
+Source code files that contain the phrase "licensing governed by
+reiserfs/README" are "governed files" throughout this file.  Governed
+files are licensed under the GPL.  The portions of them owned by Hans
+Reiser, or authorized to be licensed by him, have been in the past,
+and likely will be in the future, licensed to other parties under
+other licenses.  If you add your code to governed files, and don't
+want it to be owned by Hans Reiser, put your copyright label on that
+code so the poor blight and his customers can keep things straight.
+All portions of governed files not labeled otherwise are owned by Hans
+Reiser, and by adding your code to it, widely distributing it to
+others or sending us a patch, and leaving the sentence in stating that
+licensing is governed by the statement in this file, you accept this.
+It will be a kindness if you identify whether Hans Reiser is allowed
+to license code labeled as owned by you on your behalf other than
+under the GPL, because he wants to know if it is okay to do so and put
+a check in the mail to you (for non-trivial improvements) when he
+makes his next sale.  He makes no guarantees as to the amount if any,
+though he feels motivated to motivate contributors, and you can surely
+discuss this with him before or after contributing.  You have the
+right to decline to allow him to license your code contribution other
+than under the GPL.
+
+Further licensing options are available for commercial and/or other
+interests directly from Hans Reiser: hans@reiser.to.  If you interpret
+the GPL as not allowing those additional licensing options, you read
+it wrongly, and Richard Stallman agrees with me, when carefully read
+you can see that those restrictions on additional terms do not apply
+to the owner of the copyright, and my interpretation of this shall
+govern for this license.  
+
+Finally, nothing in this license shall be interpreted to allow you to
+fail to fairly credit me, or to remove my credits, without my
+permission, unless you are an end user not redistributing to others.
+If you have doubts about how to properly do that, or about what is
+fair, ask.  (Last I spoke with him Richard was contemplating how best
+to address the fair crediting issue in the next GPL version.)
+
+[END LICENSING]
+
+Reiserfs is a file system based on balanced tree algorithms, which is
+described at http://devlinux.com/namesys.
+
+Stop reading here.  Go there, then return.
+
+Send bug reports to yura@namesys.botik.ru.
+
+mkreiserfs and other utilities are in reiserfs/utils, or wherever your
+Linux provider put them.  There is some disagreement about how useful
+it is for users to get their fsck and mkreiserfs out of sync with the
+version of reiserfs that is in their kernel, with many important
+distributors wanting them out of sync.:-) Please try to remember to
+recompile and reinstall fsck and mkreiserfs with every update of
+reiserfs, this is a common source of confusion.  Note that some of the
+utilities cannot be compiled without accessing the balancing code
+which is in the kernel code, and relocating the utilities may require
+you to specify where that code can be found.
+
+Yes, if you update your reiserfs kernel module you do have to
+recompile your kernel, most of the time.  The errors you get will be
+quite cryptic if your forget to do so.
+
+Real users, as opposed to folks who want to hack and then understand
+what went wrong, will want REISERFS_CHECK off.
+
+Hideous Commercial Pitch: Spread your development costs across other OS
+vendors.  Select from the best in the world, not the best in your
+building, by buying from third party OS component suppliers.  Leverage
+the software component development power of the internet.  Be the most
+aggressive in taking advantage of the commercial possibilities of
+decentralized internet development, and add value through your branded
+integration that you sell as an operating system.  Let your competitors
+be the ones to compete against the entire internet by themselves.  Be
+hip, get with the new economic trend, before your competitors do.  Send
+email to hans@reiser.to.
+
+To understand the code, after reading the website, start reading the
+code by reading reiserfs_fs.h first.
+
+Hans Reiser was the project initiator, primary architect, source of all
+funding for the first 5.5 years, and one of the programmers.  He owns
+the copyright.
+
+Vladimir Saveljev was one of the programmers, and he worked long hours
+writing the cleanest code.  He always made the effort to be the best he
+could be, and to make his code the best that it could be.  What resulted
+was quite remarkable. I don't think that money can ever motivate someone
+to work the way he did, he is one of the most selfless men I know.
+
+Yura helps with benchmarking, coding hashes, and block pre-allocation
+code.
+
+Anatoly Pinchuk is a former member of our team who worked closely with
+Vladimir throughout the project's development.  He wrote a quite
+substantial portion of the total code.  He realized that there was a
+space problem with packing tails of files for files larger than a node
+that start on a node aligned boundary (there are reasons to want to node
+align files), and he invented and implemented indirect items and
+unformatted nodes as the solution.
+
+Konstantin Shvachko, with the help of the Russian version of a VC,
+tried to put me in a position where I was forced into giving control
+of the project to him.  (Fortunately, as the person paying the money
+for all salaries from my dayjob I owned all copyrights, and you can't
+really force takeovers of sole proprietorships.)  This was something
+curious, because he never really understood the value of our project,
+why we should do what we do, or why innovation was possible in
+general, but he was sure that he ought to be controlling it.  Every
+innovation had to be forced past him while he was with us.  He added
+two years to the time required to complete reiserfs, and was a net
+loss for me.  Mikhail Gilula was a brilliant innovator who also left
+in a destructive way that erased the value of his contributions, and
+that he was shown much generosity just makes it more painful.
+
+Grigory Zaigralin was an extremely effective system administrator for
+our group.
+
+Igor Krasheninnikov was wonderful at hardware procurement, repair, and
+network installation.
+
+Jeremy Fitzhardinge wrote the teahash.c code, and he gives credit to a
+textbook he got the algorithm from in the code.  Note that his analysis
+of how we could use the hashing code in making 32 bit NFS cookies work
+was probably more important than the actual algorithm.  Colin Plumb also
+contributed to it.
+
+Chris Mason dived right into our code, and in just a few months produced
+the journaling code that dramatically increased the value of ReiserFS.
+He is just an amazing programmer.
+
+Igor Zagorovsky is writing much of the new item handler and extent code
+for our next major release.
+
+Alexander Zarochentcev (sometimes known as zam, or sasha), wrote the
+resizer, and is hard at work on implementing allocate on flush.  SGI
+implemented allocate on flush before us for XFS, and generously took
+the time to convince me we should do it also.  They are great people,
+and a great company.
+
+Yuri Shevchuk and Nikita Danilov are doing squid cache optimization.
+
+Vitaly Fertman is doing fsck.
+
+Jeff Mahoney, of SuSE, contributed a few cleanup fixes, most notably
+the endian safe patches which allow ReiserFS to run on any platform
+supported by the Linux kernel.
+
+SuSE, IntegratedLinux.com, Ecila, MP3.com, bigstorage.com, and the
+Alpha PC Company made it possible for me to not have a day job
+anymore, and to dramatically increase our staffing.  Ecila funded
+hypertext feature development, MP3.com funded journaling, SuSE funded
+core development, IntegratedLinux.com funded squid web cache
+appliances, bigstorage.com funded HSM, and the alpha PC company funded
+the alpha port.  Many of these tasks were helped by sponsors other
+than the ones just named.  SuSE has helped in much more than just
+funding....
+
diff --git a/fs/reiserfs/bitmap.c b/fs/reiserfs/bitmap.c
new file mode 100644
index 00000000000000..26ec6f9fa9b357
--- /dev/null
+++ b/fs/reiserfs/bitmap.c
@@ -0,0 +1,906 @@
+/*
+ * Copyright 2000-2002 by Hans Reiser, licensing governed by reiserfs/README
+ */
+   
+/* Reiserfs block (de)allocator, bitmap-based. */
+
+#include <linux/config.h>
+#include <linux/sched.h>
+#include <linux/vmalloc.h>
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <linux/kernel.h>
+
+#include <linux/reiserfs_fs.h>
+#include <linux/reiserfs_fs_sb.h>
+#include <linux/reiserfs_fs_i.h>
+
+#define PREALLOCATION_SIZE 9
+
+#define INODE_INFO(inode) (&(inode)->u.reiserfs_i)
+
+/* different reiserfs block allocator options */
+
+#define SB_ALLOC_OPTS(s) ((s)->u.reiserfs_sb.s_alloc_options.bits)
+
+#define  _ALLOC_concentrating_formatted_nodes 0
+#define  _ALLOC_displacing_large_files 1
+#define  _ALLOC_displacing_new_packing_localities 2
+#define  _ALLOC_old_hashed_relocation 3
+#define  _ALLOC_new_hashed_relocation 4
+#define  _ALLOC_skip_busy 5
+#define  _ALLOC_displace_based_on_dirid 6
+#define  _ALLOC_hashed_formatted_nodes 7
+#define  _ALLOC_old_way 8
+#define  _ALLOC_hundredth_slices 9
+
+#define  concentrating_formatted_nodes(s)     test_bit(_ALLOC_concentrating_formatted_nodes, &SB_ALLOC_OPTS(s))
+#define  displacing_large_files(s)            test_bit(_ALLOC_displacing_large_files, &SB_ALLOC_OPTS(s))
+#define  displacing_new_packing_localities(s) test_bit(_ALLOC_displacing_new_packing_localities, &SB_ALLOC_OPTS(s))
+
+#define SET_OPTION(optname) \
+   do { \
+        reiserfs_warning(s, "reiserfs: option \"%s\" is set\n", #optname); \
+        set_bit(_ALLOC_ ## optname , &SB_ALLOC_OPTS(s)); \
+    } while(0)
+#define TEST_OPTION(optname, s) \
+    test_bit(_ALLOC_ ## optname , &SB_ALLOC_OPTS(s))
+
+
+/* #define LIMIT(a,b) do { if ((a) > (b)) (a) = (b); } while(0) */
+
+static inline void get_bit_address (struct super_block * s,
+				    unsigned long block, int * bmap_nr, int * offset)
+{
+    /* It is in the bitmap block number equal to the block
+     * number divided by the number of bits in a block. */
+    *bmap_nr = block / (s->s_blocksize << 3);
+    /* Within that bitmap block it is located at bit offset *offset. */
+    *offset = block & ((s->s_blocksize << 3) - 1 );
+    return;
+}
+
+#ifdef CONFIG_REISERFS_CHECK
+int is_reusable (struct super_block * s, unsigned long block, int bit_value)
+{
+    int i, j;
+
+    if (block == 0 || block >= SB_BLOCK_COUNT (s)) {
+	reiserfs_warning (s, "vs-4010: is_reusable: block number is out of range %lu (%u)\n",
+			  block, SB_BLOCK_COUNT (s));
+	return 0;
+    }
+
+    /* it can't be one of the bitmap blocks */
+    for (i = 0; i < SB_BMAP_NR (s); i ++)
+	if (block == SB_AP_BITMAP (s)[i].bh->b_blocknr) {
+	    reiserfs_warning (s, "vs: 4020: is_reusable: "
+			      "bitmap block %lu(%u) can't be freed or reused\n",
+			      block, SB_BMAP_NR (s));
+	    return 0;
+	}
+  
+    get_bit_address (s, block, &i, &j);
+
+    if (i >= SB_BMAP_NR (s)) {
+	reiserfs_warning (s, "vs-4030: is_reusable: there is no so many bitmap blocks: "
+			  "block=%lu, bitmap_nr=%d\n", block, i);
+	return 0;
+    }
+
+    if ((bit_value == 0 && 
+         reiserfs_test_le_bit(j, SB_AP_BITMAP(s)[i].bh->b_data)) ||
+	(bit_value == 1 && 
+	 reiserfs_test_le_bit(j, SB_AP_BITMAP (s)[i].bh->b_data) == 0)) {
+	reiserfs_warning (s, "vs-4040: is_reusable: corresponding bit of block %lu does not "
+			  "match required value (i==%d, j==%d) test_bit==%d\n",
+		block, i, j, reiserfs_test_le_bit (j, SB_AP_BITMAP (s)[i].bh->b_data));
+		
+	return 0;
+    }
+
+    if (bit_value == 0 && block == SB_ROOT_BLOCK (s)) {
+	reiserfs_warning (s, "vs-4050: is_reusable: this is root block (%u), "
+			  "it must be busy\n", SB_ROOT_BLOCK (s));
+	return 0;
+    }
+
+    return 1;
+}
+#endif /* CONFIG_REISERFS_CHECK */
+
+/* searches in journal structures for a given block number (bmap, off). If block
+   is found in reiserfs journal it suggests next free block candidate to test. */
+static inline  int is_block_in_journal (struct super_block * s, int bmap, int off, int *next)
+{
+    unsigned int tmp;
+
+    if (reiserfs_in_journal (s, s->s_dev, bmap, off, s->s_blocksize, 1, &tmp)) {
+	if (tmp) {		/* hint supplied */
+	    *next = tmp;
+	    PROC_INFO_INC( s, scan_bitmap.in_journal_hint );
+	} else {
+	    (*next) = off + 1;		/* inc offset to avoid looping. */
+	    PROC_INFO_INC( s, scan_bitmap.in_journal_nohint );
+	}
+	PROC_INFO_INC( s, scan_bitmap.retry );
+	return 1;
+    }
+    return 0;
+}
+
+/* it searches for a window of zero bits with given minimum and maximum lengths in one bitmap
+ * block; */
+static int scan_bitmap_block (struct reiserfs_transaction_handle *th,
+			      int bmap_n, int *beg, int boundary, int min, int max, int unfm)
+{
+    struct super_block *s = th->t_super;
+    struct reiserfs_bitmap_info *bi=&SB_AP_BITMAP(s)[bmap_n];
+    int end, next;
+    int org = *beg;
+
+    RFALSE(bmap_n >= SB_BMAP_NR (s), "Bitmap %d is out of range (0..%d)\n",bmap_n, SB_BMAP_NR (s) - 1);
+    PROC_INFO_INC( s, scan_bitmap.bmap );
+/* this is unclear and lacks comments, explain how journal bitmaps
+   work here for the reader.  Convey a sense of the design here. What
+   is a window? */
+/* - I mean `a window of zero bits' as in description of this function - Zam. */
+
+    if ( !bi ) {
+	printk("Hey, bitmap info pointer is zero for bitmap %d!\n",bmap_n);
+	return 0;
+    }
+    if (buffer_locked (bi->bh)) {
+       PROC_INFO_INC( s, scan_bitmap.wait );
+       __wait_on_buffer (bi->bh);
+    }
+
+    /* If we know that first zero bit is only one or first zero bit is
+       closer to the end of bitmap than our start pointer */
+    if (bi->first_zero_hint > *beg || bi->free_count == 1)
+	*beg = bi->first_zero_hint;
+
+    while (1) {
+	cont:
+	if (bi->free_count < min)
+		return 0; // No free blocks in this bitmap
+
+	/* search for a first zero bit -- beggining of a window */
+	*beg = reiserfs_find_next_zero_le_bit
+	        ((unsigned long*)(bi->bh->b_data), boundary, *beg);
+
+	if (*beg + min > boundary) { /* search for a zero bit fails or the rest of bitmap block
+				      * cannot contain a zero window of minimum size */
+	    return 0;
+	}
+
+	if (unfm && is_block_in_journal(s,bmap_n, *beg, beg))
+	    continue;
+	/* first zero bit found; we check next bits */
+	for (end = *beg + 1;; end ++) {
+	    if (end >= *beg + max || end >= boundary || reiserfs_test_le_bit (end, bi->bh->b_data)) {
+		next = end;
+		break;
+	    }
+	    /* finding the other end of zero bit window requires looking into journal structures (in
+	     * case of searching for free blocks for unformatted nodes) */
+	    if (unfm && is_block_in_journal(s, bmap_n, end, &next))
+		break;
+	}
+
+	/* now (*beg) points to beginning of zero bits window,
+	 * (end) points to one bit after the window end */
+	if (end - *beg >= min) { /* it seems we have found window of proper size */
+	    int i;
+	    reiserfs_prepare_for_journal (s, bi->bh, 1);
+	    /* try to set all blocks used checking are they still free */
+	    for (i = *beg; i < end; i++) {
+		/* It seems that we should not check in journal again. */
+		if (reiserfs_test_and_set_le_bit (i, bi->bh->b_data)) {
+		    /* bit was set by another process
+		     * while we slept in prepare_for_journal() */
+		    PROC_INFO_INC( s, scan_bitmap.stolen );
+		    if (i >= *beg + min)	{ /* we can continue with smaller set of allocated blocks,
+					   * if length of this set is more or equal to `min' */
+			end = i;
+			break;
+		    }
+		    /* otherwise we clear all bit were set ... */
+		    while (--i >= *beg)
+			reiserfs_test_and_clear_le_bit (i, bi->bh->b_data);
+		    reiserfs_restore_prepared_buffer (s, bi->bh);
+		    *beg = max(org, (int)bi->first_zero_hint);
+		    /* ... and search again in current block from beginning */
+		    goto cont;	
+		}
+	    }
+	    bi->free_count -= (end - *beg);
+
+	    /* if search started from zero_hint bit, and zero hint have not
+                changed since, then we need to update first_zero_hint */
+	    if ( bi->first_zero_hint >= *beg)
+		/* no point in looking for free bit if there is not any */
+		bi->first_zero_hint = (bi->free_count > 0 ) ?
+			reiserfs_find_next_zero_le_bit
+			((unsigned long*)(bi->bh->b_data), s->s_blocksize << 3, end) : (s->s_blocksize << 3);
+
+	    journal_mark_dirty (th, s, bi->bh);
+
+	    /* free block count calculation */
+	    reiserfs_prepare_for_journal (s, SB_BUFFER_WITH_SB(s), 1);
+	    PUT_SB_FREE_BLOCKS(s, SB_FREE_BLOCKS(s) - (end - *beg));
+	    journal_mark_dirty (th, s, SB_BUFFER_WITH_SB(s));
+
+	    return end - (*beg);
+	} else {
+	    *beg = next;
+	}
+    }
+}
+
+/* Tries to find contiguous zero bit window (given size) in given region of
+ * bitmap and place new blocks there. Returns number of allocated blocks. */
+static int scan_bitmap (struct reiserfs_transaction_handle *th,
+			unsigned long *start, unsigned long finish,
+			int min, int max, int unfm, unsigned long file_block)
+{
+    int nr_allocated=0;
+    struct super_block * s = th->t_super;
+    /* find every bm and bmap and bmap_nr in this file, and change them all to bitmap_blocknr
+     * - Hans, it is not a block number - Zam. */
+
+    int bm, off;
+    int end_bm, end_off;
+    int off_max = s->s_blocksize << 3;
+
+    PROC_INFO_INC( s, scan_bitmap.call ); 
+    if ( SB_FREE_BLOCKS(s) <= 0)
+	return 0; // No point in looking for more free blocks
+
+    get_bit_address (s, *start, &bm, &off);
+    get_bit_address (s, finish, &end_bm, &end_off);
+
+    // With this option set first we try to find a bitmap that is at least 10%
+    // free, and if that fails, then we fall back to old whole bitmap scanning
+    if ( TEST_OPTION(skip_busy, s) && SB_FREE_BLOCKS(s) > SB_BLOCK_COUNT(s)/20 ) {
+	for (;bm < end_bm; bm++, off = 0) {
+	    if ( ( off && (!unfm || (file_block != 0))) || SB_AP_BITMAP(s)[bm].free_count > (s->s_blocksize << 3) / 10 )
+		nr_allocated = scan_bitmap_block(th, bm, &off, off_max, min, max, unfm);
+	    if (nr_allocated)
+		goto ret;
+        }
+	get_bit_address (s, *start, &bm, &off);
+    }
+
+    for (;bm < end_bm; bm++, off = 0) {
+	nr_allocated = scan_bitmap_block(th, bm, &off, off_max, min, max, unfm);
+	if (nr_allocated)
+	    goto ret;
+    }
+
+    nr_allocated = scan_bitmap_block(th, bm, &off, end_off + 1, min, max, unfm);
+
+ ret:
+    *start = bm * off_max + off;
+    return nr_allocated;
+
+}
+
+static void _reiserfs_free_block (struct reiserfs_transaction_handle *th,
+			  b_blocknr_t block)
+{
+    struct super_block * s = th->t_super;
+    struct reiserfs_super_block * rs;
+    struct buffer_head * sbh;
+    struct reiserfs_bitmap_info *apbi;
+    int nr, offset;
+
+    PROC_INFO_INC( s, free_block );
+
+    rs = SB_DISK_SUPER_BLOCK (s);
+    sbh = SB_BUFFER_WITH_SB (s);
+    apbi = SB_AP_BITMAP(s);
+  
+    get_bit_address (s, block, &nr, &offset);
+  
+    if (nr >= sb_bmap_nr (rs)) {
+	reiserfs_warning (s, "vs-4075: reiserfs_free_block: "
+			  "block %lu is out of range on %s\n",
+			  block, bdevname(s->s_dev));
+	return;
+    }
+
+    reiserfs_prepare_for_journal(s, apbi[nr].bh, 1 ) ;
+  
+    /* clear bit for the given block in bit map */
+    if (!reiserfs_test_and_clear_le_bit (offset, apbi[nr].bh->b_data)) {
+	reiserfs_warning (s, "vs-4080: reiserfs_free_block: "
+			  "free_block (%04x:%lu)[dev:blocknr]: bit already cleared\n", 
+			  s->s_dev, block);
+    }
+    if (offset < apbi[nr].first_zero_hint) {
+	apbi[nr].first_zero_hint = offset;
+    }
+    apbi[nr].free_count ++;
+    journal_mark_dirty (th, s, apbi[nr].bh);
+  
+    reiserfs_prepare_for_journal(s, sbh, 1) ;
+    /* update super block */
+    set_sb_free_blocks( rs, sb_free_blocks(rs) + 1 );
+  
+    journal_mark_dirty (th, s, sbh);
+}
+
+void reiserfs_free_block (struct reiserfs_transaction_handle *th,
+			  unsigned long block) {
+    struct super_block * s = th->t_super;
+
+    RFALSE(!s, "vs-4061: trying to free block on nonexistent device");
+    RFALSE(is_reusable (s, block, 1) == 0, "vs-4071: can not free such block");
+    /* mark it before we clear it, just in case */
+    journal_mark_freed(th, s, block) ;
+    _reiserfs_free_block(th, block) ;
+}
+
+/* preallocated blocks don't need to be run through journal_mark_freed */
+void reiserfs_free_prealloc_block (struct reiserfs_transaction_handle *th, 
+                          unsigned long block) {
+    RFALSE(!th->t_super, "vs-4060: trying to free block on nonexistent device");
+    RFALSE(is_reusable (th->t_super, block, 1) == 0, "vs-4070: can not free such block");
+    _reiserfs_free_block(th, block) ;
+}
+
+static void __discard_prealloc (struct reiserfs_transaction_handle * th,
+				struct inode * inode)
+{
+    unsigned long save = inode->u.reiserfs_i.i_prealloc_block ;
+#ifdef CONFIG_REISERFS_CHECK
+    if (inode->u.reiserfs_i.i_prealloc_count < 0)
+	reiserfs_warning(th->t_super, "zam-4001:%s: inode has negative prealloc blocks count.\n", __FUNCTION__ );
+#endif  
+    while (inode->u.reiserfs_i.i_prealloc_count > 0) {
+	reiserfs_free_prealloc_block(th,inode->u.reiserfs_i.i_prealloc_block);
+	inode->u.reiserfs_i.i_prealloc_block++;
+	inode->u.reiserfs_i.i_prealloc_count --;
+    }
+    inode->u.reiserfs_i.i_prealloc_block = save ;
+    list_del (&(inode->u.reiserfs_i.i_prealloc_list));
+}
+
+/* FIXME: It should be inline function */
+void reiserfs_discard_prealloc (struct reiserfs_transaction_handle *th,
+				struct inode * inode)
+{
+    if (inode->u.reiserfs_i.i_prealloc_count) {
+	__discard_prealloc(th, inode);
+    }
+}
+
+void reiserfs_discard_all_prealloc (struct reiserfs_transaction_handle *th)
+{
+  struct list_head * plist = &SB_JOURNAL(th->t_super)->j_prealloc_list;
+  struct inode * inode;
+  
+  while (!list_empty(plist)) {
+    inode = list_entry(plist->next, struct inode, u.reiserfs_i.i_prealloc_list);
+#ifdef CONFIG_REISERFS_CHECK
+    if (!inode->u.reiserfs_i.i_prealloc_count) {
+      reiserfs_warning(th->t_super, "zam-4001:%s: inode is in prealloc list but has no preallocated blocks.\n", __FUNCTION__ );
+    }
+#endif
+    __discard_prealloc(th, inode);
+  }
+}
+
+/* block allocator related options are parsed here */
+int reiserfs_parse_alloc_options(struct super_block * s, char * options)
+{
+    char * this_char, * value;
+
+    s->u.reiserfs_sb.s_alloc_options.bits = 0; /* clear default settings */
+
+    for (this_char = strtok (options, ":"); this_char != NULL; this_char = strtok (NULL, ":")) {
+	if ((value = strchr (this_char, '=')) != NULL)
+	    *value++ = 0;
+
+	if (!strcmp(this_char, "concentrating_formatted_nodes")) {
+	    int temp;
+	    SET_OPTION(concentrating_formatted_nodes);
+	    temp = (value && *value) ? simple_strtoul (value, &value, 0) : 10;
+	    if (temp <= 0 || temp > 100) {
+		s->u.reiserfs_sb.s_alloc_options.border = 10;
+	    } else {
+		s->u.reiserfs_sb.s_alloc_options.border = 100 / temp;
+	   }
+	    continue;
+	}
+	if (!strcmp(this_char, "displacing_large_files")) {
+	    SET_OPTION(displacing_large_files);
+	    s->u.reiserfs_sb.s_alloc_options.large_file_size =
+		(value && *value) ? simple_strtoul (value, &value, 0) : 16;
+	    continue;
+	}
+	if (!strcmp(this_char, "displacing_new_packing_localities")) {
+	    SET_OPTION(displacing_new_packing_localities);
+	    continue;
+	};
+
+	if (!strcmp(this_char, "old_hashed_relocation")) {
+	    SET_OPTION(old_hashed_relocation);
+	    continue;
+	}
+
+	if (!strcmp(this_char, "new_hashed_relocation")) {
+	    SET_OPTION(new_hashed_relocation);
+	    continue;
+	}
+
+	if (!strcmp(this_char, "hashed_formatted_nodes")) {
+	    SET_OPTION(hashed_formatted_nodes);
+	    continue;
+	}
+
+	if (!strcmp(this_char, "skip_busy")) {
+	    SET_OPTION(skip_busy);
+	    continue;
+	}
+
+	if (!strcmp(this_char, "hundredth_slices")) {
+	    SET_OPTION(hundredth_slices);
+	    continue;
+	}
+
+	if (!strcmp(this_char, "old_way")) {
+	    SET_OPTION(old_way);
+	    continue;
+	}
+
+	if (!strcmp(this_char, "displace_based_on_dirid")) {
+	    SET_OPTION(displace_based_on_dirid);
+	    continue;
+	}
+
+	if (!strcmp(this_char, "preallocmin")) {
+	    s->u.reiserfs_sb.s_alloc_options.preallocmin =
+		(value && *value) ? simple_strtoul (value, &value, 0) : 4;
+	    continue;
+	}
+
+	if (!strcmp(this_char, "preallocsize")) {
+	    s->u.reiserfs_sb.s_alloc_options.preallocsize =
+		(value && *value) ? simple_strtoul (value, &value, 0) : PREALLOCATION_SIZE;
+	    continue;
+	}
+
+	reiserfs_warning(s, "zam-4001: %s : unknown option - %s\n", __FUNCTION__ , this_char);
+	return 1;
+    }
+
+    return 0;
+}
+
+static void inline new_hashed_relocation (reiserfs_blocknr_hint_t * hint)
+{
+    char * hash_in;
+    if (hint->formatted_node) {
+	    hash_in = (char*)&hint->key.k_dir_id;
+    } else {
+	if (!hint->inode) {
+	    //hint->search_start = hint->beg;
+	    hash_in = (char*)&hint->key.k_dir_id;
+	} else 
+	    if ( TEST_OPTION(displace_based_on_dirid, hint->th->t_super))
+		hash_in = (char *)(&INODE_PKEY(hint->inode)->k_dir_id);
+	    else
+		hash_in = (char *)(&INODE_PKEY(hint->inode)->k_objectid);
+    }
+
+    hint->search_start = hint->beg + keyed_hash(hash_in, 4) % (hint->end - hint->beg);
+}
+
+static void inline get_left_neighbor(reiserfs_blocknr_hint_t *hint)
+{
+    struct path * path;
+    struct buffer_head * bh;
+    struct item_head * ih;
+    int pos_in_item;
+    __u32 * item;
+
+    if (!hint->path)		/* reiserfs code can call this function w/o pointer to path
+				 * structure supplied; then we rely on supplied search_start */
+	return;
+
+    path = hint->path;
+    bh = get_last_bh(path);
+    RFALSE( !bh, "green-4002: Illegal path specified to get_left_neighbor\n");
+    ih = get_ih(path);
+    pos_in_item = path->pos_in_item;
+    item = get_item (path);
+
+    hint->search_start = bh->b_blocknr;
+
+    if (!hint->formatted_node && is_indirect_le_ih (ih)) {
+	/* for indirect item: go to left and look for the first non-hole entry
+	   in the indirect item */
+	if (pos_in_item == I_UNFM_NUM (ih))
+	    pos_in_item--;
+//	    pos_in_item = I_UNFM_NUM (ih) - 1;
+	while (pos_in_item >= 0) {
+	    int t=get_block_num(item,pos_in_item);
+	    if (t) {
+		hint->search_start = t;
+		break;
+	    }
+	    pos_in_item --;
+	}
+    } else {
+    }
+
+    /* does result value fit into specified region? */
+    return;
+}
+
+/* should be, if formatted node, then try to put on first part of the device
+   specified as number of percent with mount option device, else try to put
+   on last of device.  This is not to say it is good code to do so,
+   but the effect should be measured.  */
+static void inline set_border_in_hint(struct super_block *s, reiserfs_blocknr_hint_t *hint)
+{
+    b_blocknr_t border = SB_BLOCK_COUNT(hint->th->t_super) / s->u.reiserfs_sb.s_alloc_options.border;
+
+    if (hint->formatted_node)
+	hint->end = border - 1;
+    else
+	hint->beg = border;
+}
+
+static void inline displace_large_file(reiserfs_blocknr_hint_t *hint)
+{
+    if ( TEST_OPTION(displace_based_on_dirid, hint->th->t_super))
+	hint->search_start = hint->beg + keyed_hash((char *)(&INODE_PKEY(hint->inode)->k_dir_id), 4) % (hint->end - hint->beg);
+    else
+	hint->search_start = hint->beg + keyed_hash((char *)(&INODE_PKEY(hint->inode)->k_objectid), 4) % (hint->end - hint->beg);
+}
+
+static void inline hash_formatted_node(reiserfs_blocknr_hint_t *hint)
+{
+   char * hash_in;
+
+   if (!hint->inode)
+	hash_in = (char*)&hint->key.k_dir_id;
+    else if ( TEST_OPTION(displace_based_on_dirid, hint->th->t_super))
+	hash_in = (char *)(&INODE_PKEY(hint->inode)->k_dir_id);
+    else
+	hash_in = (char *)(&INODE_PKEY(hint->inode)->k_objectid);
+
+	hint->search_start = hint->beg + keyed_hash(hash_in, 4) % (hint->end - hint->beg);
+}
+
+static int inline this_blocknr_allocation_would_make_it_a_large_file(reiserfs_blocknr_hint_t *hint)
+{
+    return hint->block == hint->th->t_super->u.reiserfs_sb.s_alloc_options.large_file_size;
+}
+
+#ifdef DISPLACE_NEW_PACKING_LOCALITIES
+static void inline displace_new_packing_locality (reiserfs_blocknr_hint_t *hint)
+{
+    struct key * key = &hint->key;
+
+    hint->th->displace_new_blocks = 0;
+    hint->search_start = hint->beg + keyed_hash((char*)(&key->k_objectid),4) % (hint->end - hint->beg);
+}
+#endif
+
+static int inline old_hashed_relocation (reiserfs_blocknr_hint_t * hint)
+{
+    unsigned long border;
+    unsigned long hash_in;
+    
+    if (hint->formatted_node || hint->inode == NULL) {
+	return 0;
+    }
+
+    hash_in = le32_to_cpu((INODE_PKEY(hint->inode))->k_dir_id);
+    border = hint->beg + (unsigned long) keyed_hash(((char *) (&hash_in)), 4) % (hint->end - hint->beg - 1);
+    if (border > hint->search_start)
+	hint->search_start = border;
+
+    return 1;
+}
+
+static int inline old_way (reiserfs_blocknr_hint_t * hint)
+{
+    unsigned long border;
+    
+    if (hint->formatted_node || hint->inode == NULL) {
+	return 0;
+    }
+
+      border = hint->beg + le32_to_cpu(INODE_PKEY(hint->inode)->k_dir_id) % (hint->end  - hint->beg);
+    if (border > hint->search_start)
+	hint->search_start = border;
+
+    return 1;
+}
+
+static void inline hundredth_slices (reiserfs_blocknr_hint_t * hint)
+{
+    struct key * key = &hint->key;
+    unsigned long slice_start;
+
+    slice_start = (keyed_hash((char*)(&key->k_dir_id),4) % 100) * (hint->end / 100);
+    if ( slice_start > hint->search_start || slice_start + (hint->end / 100) <= hint->search_start) {
+	hint->search_start = slice_start;
+    }
+}
+
+static void inline determine_search_start(reiserfs_blocknr_hint_t *hint,
+					  int amount_needed)
+{
+    struct super_block *s = hint->th->t_super;
+    hint->beg = 0;
+    hint->end = SB_BLOCK_COUNT(s) - 1;
+
+    /* This is former border algorithm. Now with tunable border offset */
+    if (concentrating_formatted_nodes(s))
+	set_border_in_hint(s, hint);
+
+#ifdef DISPLACE_NEW_PACKING_LOCALITIES
+    /* whenever we create a new directory, we displace it.  At first we will
+       hash for location, later we might look for a moderately empty place for
+       it */
+    if (displacing_new_packing_localities(s)
+	&& hint->th->displace_new_blocks) {
+	displace_new_packing_locality(hint);
+
+	/* we do not continue determine_search_start,
+	 * if new packing locality is being displaced */
+	return;
+    }				      
+#endif
+
+    /* all persons should feel encouraged to add more special cases here and
+     * test them */
+
+    if (displacing_large_files(s) && !hint->formatted_node
+	&& this_blocknr_allocation_would_make_it_a_large_file(hint)) {
+	displace_large_file(hint);
+	return;
+    }
+
+    /* attempt to copy a feature from old block allocator code */
+    if (TEST_OPTION(old_hashed_relocation, s) && !hint->formatted_node) {
+	old_hashed_relocation(hint);
+    }
+
+    /* if none of our special cases is relevant, use the left neighbor in the
+       tree order of the new node we are allocating for */
+    if (hint->formatted_node && TEST_OPTION(hashed_formatted_nodes,s)) {
+	hash_formatted_node(hint);
+	return;
+    } 
+
+    get_left_neighbor(hint);
+
+    /* Mimic old block allocator behaviour, that is if VFS allowed for preallocation,
+       new blocks are displaced based on directory ID. Also, if suggested search_start
+       is less than last preallocated block, we start searching from it, assuming that
+       HDD dataflow is faster in forward direction */
+    if ( TEST_OPTION(old_way, s)) {
+	if (!hint->formatted_node) {
+	    if ( !reiserfs_hashed_relocation(s))
+		old_way(hint);
+	    else if (!reiserfs_no_unhashed_relocation(s))
+		old_hashed_relocation(hint);
+
+	    if ( hint->inode && hint->search_start < hint->inode->u.reiserfs_i.i_prealloc_block)
+		hint->search_start = hint->inode->u.reiserfs_i.i_prealloc_block;
+	}
+	return;
+    }
+
+    /* This is an approach proposed by Hans */
+    if ( TEST_OPTION(hundredth_slices, s) && ! (displacing_large_files(s) && !hint->formatted_node)) {
+	hundredth_slices(hint);
+	return;
+    }
+
+    if (TEST_OPTION(old_hashed_relocation, s))
+	old_hashed_relocation(hint);
+    if (TEST_OPTION(new_hashed_relocation, s))
+	new_hashed_relocation(hint);
+    return;
+}
+
+static int determine_prealloc_size(reiserfs_blocknr_hint_t * hint)
+{
+    /* make minimum size a mount option and benchmark both ways */
+    /* we preallocate blocks only for regular files, specific size */
+    /* benchmark preallocating always and see what happens */
+
+    hint->prealloc_size = 0;
+
+    if (!hint->formatted_node && hint->preallocate) {
+	if (S_ISREG(hint->inode->i_mode)
+	    && hint->inode->i_size >= hint->th->t_super->u.reiserfs_sb.s_alloc_options.preallocmin * hint->inode->i_sb->s_blocksize)
+	    hint->prealloc_size = hint->th->t_super->u.reiserfs_sb.s_alloc_options.preallocsize - 1;
+    }
+    return CARRY_ON;
+}
+
+/* XXX I know it could be merged with upper-level function;
+   but may be result function would be too complex. */
+static inline int allocate_without_wrapping_disk (reiserfs_blocknr_hint_t * hint,
+					 b_blocknr_t * new_blocknrs,
+					 b_blocknr_t start, b_blocknr_t finish,
+					 int amount_needed, int prealloc_size)
+{
+    int rest = amount_needed;
+    int nr_allocated;
+
+    while (rest > 0) {
+	nr_allocated = scan_bitmap (hint->th, &start, finish, 1,
+				    rest + prealloc_size, !hint->formatted_node,
+				    hint->block);
+
+	if (nr_allocated == 0)	/* no new blocks allocated, return */
+	    break;
+	
+	/* fill free_blocknrs array first */
+	while (rest > 0 && nr_allocated > 0) {
+	    * new_blocknrs ++ = start ++;
+	    rest --; nr_allocated --;
+	}
+
+	/* do we have something to fill prealloc. array also ? */
+	if (nr_allocated > 0) {
+	    /* it means prealloc_size was greater that 0 and we do preallocation */
+	    list_add(&INODE_INFO(hint->inode)->i_prealloc_list,
+		     &SB_JOURNAL(hint->th->t_super)->j_prealloc_list);
+	    INODE_INFO(hint->inode)->i_prealloc_block = start;
+	    INODE_INFO(hint->inode)->i_prealloc_count = nr_allocated;
+	    break;
+	}
+    }
+
+    return (amount_needed - rest);
+}
+
+static inline int blocknrs_and_prealloc_arrays_from_search_start
+    (reiserfs_blocknr_hint_t *hint, b_blocknr_t *new_blocknrs, int amount_needed)
+{
+    struct super_block *s = hint->th->t_super;
+    b_blocknr_t start = hint->search_start;
+    b_blocknr_t finish = SB_BLOCK_COUNT(s) - 1;
+    int second_pass = 0;
+    int nr_allocated = 0;
+
+    determine_prealloc_size(hint);
+    while((nr_allocated
+	  += allocate_without_wrapping_disk(hint, new_blocknrs + nr_allocated, start, finish,
+					  amount_needed - nr_allocated, hint->prealloc_size))
+	  < amount_needed) {
+
+	/* not all blocks were successfully allocated yet*/
+	if (second_pass) {	/* it was a second pass; we must free all blocks */
+	    while (nr_allocated --)
+		reiserfs_free_block(hint->th, new_blocknrs[nr_allocated]);
+
+	    return NO_DISK_SPACE;
+	} else {		/* refine search parameters for next pass */
+	    second_pass = 1;
+	    finish = start;
+	    start = 0;
+	    continue;
+	}
+    }
+    return CARRY_ON;
+}
+
+/* grab new blocknrs from preallocated list */
+/* return amount still needed after using them */
+static int use_preallocated_list_if_available (reiserfs_blocknr_hint_t *hint,
+					       b_blocknr_t *new_blocknrs, int amount_needed)
+{
+    struct inode * inode = hint->inode;
+
+    if (INODE_INFO(inode)->i_prealloc_count > 0) {
+	while (amount_needed) {
+
+	    *new_blocknrs ++ = INODE_INFO(inode)->i_prealloc_block ++;
+	    INODE_INFO(inode)->i_prealloc_count --;
+
+	    amount_needed --;
+
+	    if (INODE_INFO(inode)->i_prealloc_count <= 0) {
+		list_del(&inode->u.reiserfs_i.i_prealloc_list);  
+		break;
+	    }
+	}
+    }
+    /* return amount still needed after using preallocated blocks */
+    return amount_needed;
+}
+
+int reiserfs_allocate_blocknrs(reiserfs_blocknr_hint_t *hint,
+			       b_blocknr_t * new_blocknrs, int amount_needed,
+			       int reserved_by_us /* Amount of blocks we have
+						      already reserved */)
+{
+    int initial_amount_needed = amount_needed;
+    int ret;
+
+    /* Check if there is enough space, taking into account reserved space */
+    if ( SB_FREE_BLOCKS(hint->th->t_super) - hint->th->t_super->u.reiserfs_sb.reserved_blocks <
+	 amount_needed - reserved_by_us)
+        return NO_DISK_SPACE;
+    /* should this be if !hint->inode &&  hint->preallocate? */
+    /* do you mean hint->formatted_node can be removed ? - Zam */
+    /* hint->formatted_node cannot be removed because we try to access
+       inode information here, and there is often no inode assotiated with
+       metadata allocations - green */
+
+    if (!hint->formatted_node && hint->preallocate) {
+	amount_needed = use_preallocated_list_if_available
+	    (hint, new_blocknrs, amount_needed);
+	if (amount_needed == 0)	/* all blocknrs we need we got from
+                                   prealloc. list */
+	    return CARRY_ON;
+	new_blocknrs += (initial_amount_needed - amount_needed);
+    }
+
+    /* find search start and save it in hint structure */
+    determine_search_start(hint, amount_needed);
+
+    /* allocation itself; fill new_blocknrs and preallocation arrays */
+    ret = blocknrs_and_prealloc_arrays_from_search_start
+	(hint, new_blocknrs, amount_needed);
+
+    /* we used prealloc. list to fill (partially) new_blocknrs array. If final allocation fails we
+     * need to return blocks back to prealloc. list or just free them. -- Zam (I chose second
+     * variant) */
+
+    if (ret != CARRY_ON) {
+	while (amount_needed ++ < initial_amount_needed) {
+	    reiserfs_free_block(hint->th, *(--new_blocknrs));
+	}
+    }
+    return ret;
+}
+
+/* These 2 functions are here to provide blocks reservation to the rest of kernel */
+/* Reserve @blocks amount of blocks in fs pointed by @sb. Caller must make sure
+   there are actually this much blocks on the FS available */
+void reiserfs_claim_blocks_to_be_allocated( 
+				      struct super_block *sb, /* super block of
+							        filesystem where
+								blocks should be
+								reserved */
+				      int blocks /* How much to reserve */
+					  )
+{
+
+    /* Fast case, if reservation is zero - exit immediately. */
+    if ( !blocks )
+	return;
+
+    sb->u.reiserfs_sb.reserved_blocks += blocks;
+}
+
+/* Unreserve @blocks amount of blocks in fs pointed by @sb */
+void reiserfs_release_claimed_blocks( 
+				struct super_block *sb, /* super block of
+							  filesystem where
+							  blocks should be
+							  reserved */
+				int blocks /* How much to unreserve */
+					  )
+{
+
+    /* Fast case, if unreservation is zero - exit immediately. */
+    if ( !blocks )
+	return;
+
+    sb->u.reiserfs_sb.reserved_blocks -= blocks;
+    RFALSE( sb->u.reiserfs_sb.reserved_blocks < 0, "amount of blocks reserved became zero?");
+}
diff --git a/fs/reiserfs/buffer2.c b/fs/reiserfs/buffer2.c
new file mode 100644
index 00000000000000..63ca8bbcbb5bd0
--- /dev/null
+++ b/fs/reiserfs/buffer2.c
@@ -0,0 +1,76 @@
+/*
+ *  Copyright 2000-2002 by Hans Reiser, licensing governed by reiserfs/README  
+ */
+
+#include <linux/config.h>
+#include <linux/sched.h>
+#include <linux/locks.h>
+#include <linux/reiserfs_fs.h>
+#include <linux/smp_lock.h>
+#include <linux/kernel_stat.h>
+
+/*
+ *  wait_buffer_until_released
+ *  reiserfs_bread
+ */
+
+/* when we allocate a new block (get_new_buffer, get_empty_nodes) and
+   get buffer for it, it is possible that it is held by someone else
+   or even by this process. In this function we wait until all other
+   holders release buffer. To make sure, that current process does not
+   hold we did free all buffers in tree balance structure
+   (get_empty_nodes and get_nodes_for_preserving) or in path structure
+   only (get_new_buffer) just before calling this */
+void wait_buffer_until_released (const struct buffer_head * bh)
+{
+  int repeat_counter = 0;
+
+  while (atomic_read (&(bh->b_count)) > 1) {
+
+    if ( !(++repeat_counter % 30000000) ) {
+      reiserfs_warning (NULL, "vs-3050: wait_buffer_until_released: nobody releases buffer (%b). Still waiting (%d) %cJDIRTY %cJWAIT\n",
+			bh, repeat_counter, buffer_journaled(bh) ? ' ' : '!',
+			buffer_journal_dirty(bh) ? ' ' : '!');
+    }
+    run_task_queue(&tq_disk);
+    yield();
+  }
+  if (repeat_counter > 30000000) {
+    reiserfs_warning(NULL, "vs-3051: done waiting, ignore vs-3050 messages for (%b)\n", bh) ;
+  }
+}
+
+/*
+ * reiserfs_bread() reads a specified block and returns the buffer that contains
+ * it. It returns NULL if the block was unreadable.
+ */
+/* It first tries to find the block in cache, and if it cannot do so
+   then it creates a new buffer and schedules I/O to read the
+   block. */
+/* The function is NOT SCHEDULE-SAFE! */
+struct buffer_head  * reiserfs_bread (struct super_block *super, int n_block, int n_size) 
+{
+    struct buffer_head  *result;
+    PROC_EXP( unsigned int ctx_switches = kstat.context_swtch );
+
+    result = bread (super -> s_dev, n_block, n_size);
+    PROC_INFO_INC( super, breads );
+    PROC_EXP( if( kstat.context_swtch != ctx_switches ) 
+	      PROC_INFO_INC( super, bread_miss ) );
+    return result;
+}
+
+struct buffer_head  * journal_bread (struct super_block *s, int block)
+{
+	return bread (SB_JOURNAL_DEV(s), block, s->s_blocksize );
+}
+
+struct buffer_head  * journal_getblk (struct super_block *s, int block)
+{
+	return getblk (SB_JOURNAL_DEV(s), block, s->s_blocksize );
+}
+
+struct buffer_head  * journal_get_hash_table (struct super_block *s, int block)
+{
+  return get_hash_table (SB_JOURNAL_DEV(s), block, s->s_blocksize );
+}
diff --git a/fs/reiserfs/dir.c b/fs/reiserfs/dir.c
new file mode 100644
index 00000000000000..91aeb603ca084c
--- /dev/null
+++ b/fs/reiserfs/dir.c
@@ -0,0 +1,254 @@
+/*
+ * Copyright 2000-2002 by Hans Reiser, licensing governed by reiserfs/README
+ */
+
+#include <linux/config.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/reiserfs_fs.h>
+#include <linux/stat.h>
+#include <linux/smp_lock.h>
+#include <asm/uaccess.h>
+
+extern struct key  MIN_KEY;
+
+static int reiserfs_readdir (struct file *, void *, filldir_t);
+int reiserfs_dir_fsync(struct file *filp, struct dentry *dentry, int datasync) ;
+
+struct file_operations reiserfs_dir_operations = {
+    read:	generic_read_dir,
+    readdir:	reiserfs_readdir,
+    fsync:	reiserfs_dir_fsync,
+    ioctl:	reiserfs_ioctl,
+};
+
+int reiserfs_dir_fsync(struct file *filp, struct dentry *dentry, int datasync) {
+  lock_kernel();
+  reiserfs_commit_for_inode(dentry->d_inode) ;
+  unlock_kernel() ;
+  return 0 ;
+}
+
+
+#define store_ih(where,what) copy_item_head (where, what)
+
+//
+static int reiserfs_readdir (struct file * filp, void * dirent, filldir_t filldir)
+{
+    struct inode *inode = filp->f_dentry->d_inode;
+    struct cpu_key pos_key;	/* key of current position in the directory (key of directory entry) */
+    INITIALIZE_PATH (path_to_entry);
+    struct buffer_head * bh;
+    int item_num, entry_num;
+    const struct key * rkey;
+    struct item_head * ih, tmp_ih;
+    int search_res;
+    char * local_buf;
+    loff_t next_pos;
+    char small_buf[32] ; /* avoid kmalloc if we can */
+    struct reiserfs_dir_entry de;
+
+
+    reiserfs_check_lock_depth("readdir") ;
+
+    /* form key for search the next directory entry using f_pos field of
+       file structure */
+    make_cpu_key (&pos_key, inode, (filp->f_pos) ? (filp->f_pos) : DOT_OFFSET,
+		  TYPE_DIRENTRY, 3);
+    next_pos = cpu_key_k_offset (&pos_key);
+
+    /*  reiserfs_warning (inode->i_sb, "reiserfs_readdir 1: f_pos = %Ld\n", filp->f_pos);*/
+
+    while (1) {
+    research:
+	/* search the directory item, containing entry with specified key */
+	search_res = search_by_entry_key (inode->i_sb, &pos_key, &path_to_entry, &de);
+	if (search_res == IO_ERROR) {
+	    // FIXME: we could just skip part of directory which could
+	    // not be read
+	    return -EIO;
+	}
+	entry_num = de.de_entry_num;
+	bh = de.de_bh;
+	item_num = de.de_item_num;
+	ih = de.de_ih;
+	store_ih (&tmp_ih, ih);
+		
+	/* we must have found item, that is item of this directory, */
+	RFALSE( COMP_SHORT_KEYS (&(ih->ih_key), &pos_key),
+		"vs-9000: found item %h does not match to dir we readdir %K",
+		ih, &pos_key);
+	RFALSE( item_num > B_NR_ITEMS (bh) - 1,
+		"vs-9005 item_num == %d, item amount == %d", 
+		item_num, B_NR_ITEMS (bh));
+      
+	/* and entry must be not more than number of entries in the item */
+	RFALSE( I_ENTRY_COUNT (ih) < entry_num,
+		"vs-9010: entry number is too big %d (%d)", 
+		entry_num, I_ENTRY_COUNT (ih));
+
+	if (search_res == POSITION_FOUND || entry_num < I_ENTRY_COUNT (ih)) {
+	    /* go through all entries in the directory item beginning from the entry, that has been found */
+	    struct reiserfs_de_head * deh = B_I_DEH (bh, ih) + entry_num;
+
+	    for (; entry_num < I_ENTRY_COUNT (ih); entry_num ++, deh ++) {
+		int d_reclen;
+		char * d_name;
+		off_t d_off;
+		ino_t d_ino;
+
+		if (!de_visible (deh))
+		    /* it is hidden entry */
+		    continue;
+		d_reclen = entry_length (bh, ih, entry_num);
+		d_name = B_I_DEH_ENTRY_FILE_NAME (bh, ih, deh);
+		if (!d_name[d_reclen - 1])
+		    d_reclen = strlen (d_name);
+	
+		if (d_reclen > REISERFS_MAX_NAME(inode->i_sb->s_blocksize)){
+		    /* too big to send back to VFS */
+		    continue ;
+		}
+		d_off = deh_offset (deh);
+		filp->f_pos = d_off ;
+		d_ino = deh_objectid (deh);
+		if (d_reclen <= 32) {
+		  local_buf = small_buf ;
+		} else {
+		    local_buf = reiserfs_kmalloc(d_reclen, GFP_NOFS, inode->i_sb) ;
+		    if (!local_buf) {
+			pathrelse (&path_to_entry);
+			return -ENOMEM ;
+		    }
+		    if (item_moved (&tmp_ih, &path_to_entry)) {
+			reiserfs_kfree(local_buf, d_reclen, inode->i_sb) ;
+			goto research;
+		    }
+		}
+		// Note, that we copy name to user space via temporary
+		// buffer (local_buf) because filldir will block if
+		// user space buffer is swapped out. At that time
+		// entry can move to somewhere else
+		memcpy (local_buf, d_name, d_reclen);
+		if (filldir (dirent, local_buf, d_reclen, d_off, d_ino, 
+		             DT_UNKNOWN) < 0) {
+		    if (local_buf != small_buf) {
+			reiserfs_kfree(local_buf, d_reclen, inode->i_sb) ;
+		    }
+		    goto end;
+		}
+		if (local_buf != small_buf) {
+		    reiserfs_kfree(local_buf, d_reclen, inode->i_sb) ;
+		}
+
+		// next entry should be looked for with such offset
+		next_pos = deh_offset (deh) + 1;
+
+		if (item_moved (&tmp_ih, &path_to_entry)) {
+		    goto research;
+		}
+	    } /* for */
+	}
+
+	if (item_num != B_NR_ITEMS (bh) - 1)
+	    // end of directory has been reached
+	    goto end;
+
+	/* item we went through is last item of node. Using right
+	   delimiting key check is it directory end */
+	rkey = get_rkey (&path_to_entry, inode->i_sb);
+	if (! comp_le_keys (rkey, &MIN_KEY)) {
+	    /* set pos_key to key, that is the smallest and greater
+	       that key of the last entry in the item */
+	    set_cpu_key_k_offset (&pos_key, next_pos);
+	    continue;
+	}
+
+	if ( COMP_SHORT_KEYS (rkey, &pos_key)) {
+	    // end of directory has been reached
+	    goto end;
+	}
+	
+	/* directory continues in the right neighboring block */
+	set_cpu_key_k_offset (&pos_key, le_key_k_offset (KEY_FORMAT_3_5, rkey));
+
+    } /* while */
+
+
+ end:
+
+    filp->f_pos = next_pos;
+    pathrelse (&path_to_entry);
+    reiserfs_check_path(&path_to_entry) ;
+    UPDATE_ATIME(inode) ;
+    return 0;
+}
+
+/* compose directory item containing "." and ".." entries (entries are
+   not aligned to 4 byte boundary) */
+/* the last four params are LE */
+void make_empty_dir_item_v1 (char * body, __u32 dirid, __u32 objid,
+			     __u32 par_dirid, __u32 par_objid)
+{
+    struct reiserfs_de_head * deh;
+
+    memset (body, 0, EMPTY_DIR_SIZE_V1);
+    deh = (struct reiserfs_de_head *)body;
+    
+    /* direntry header of "." */
+    put_deh_offset( &(deh[0]), DOT_OFFSET );
+    /* these two are from make_le_item_head, and are are LE */
+    deh[0].deh_dir_id = dirid;
+    deh[0].deh_objectid = objid;
+    deh[0].deh_state = 0; /* Endian safe if 0 */
+    put_deh_location( &(deh[0]), EMPTY_DIR_SIZE_V1 - strlen( "." ));
+    mark_de_visible(&(deh[0]));
+  
+    /* direntry header of ".." */
+    put_deh_offset( &(deh[1]), DOT_DOT_OFFSET);
+    /* key of ".." for the root directory */
+    /* these two are from the inode, and are are LE */
+    deh[1].deh_dir_id = par_dirid;
+    deh[1].deh_objectid = par_objid;
+    deh[1].deh_state = 0; /* Endian safe if 0 */
+    put_deh_location( &(deh[1]), deh_location( &(deh[0]) ) - strlen( ".." ) );
+    mark_de_visible(&(deh[1]));
+
+    /* copy ".." and "." */
+    memcpy (body + deh_location( &(deh[0]) ), ".", 1);
+    memcpy (body + deh_location( &(deh[1]) ), "..", 2);
+}
+
+/* compose directory item containing "." and ".." entries */
+void make_empty_dir_item (char * body, __u32 dirid, __u32 objid,
+			  __u32 par_dirid, __u32 par_objid)
+{
+    struct reiserfs_de_head * deh;
+
+    memset (body, 0, EMPTY_DIR_SIZE);
+    deh = (struct reiserfs_de_head *)body;
+    
+    /* direntry header of "." */
+    put_deh_offset( &(deh[0]), DOT_OFFSET );
+    /* these two are from make_le_item_head, and are are LE */
+    deh[0].deh_dir_id = dirid;
+    deh[0].deh_objectid = objid;
+    deh[0].deh_state = 0; /* Endian safe if 0 */
+    put_deh_location( &(deh[0]), EMPTY_DIR_SIZE - ROUND_UP( strlen( "." ) ) );
+    mark_de_visible(&(deh[0]));
+  
+    /* direntry header of ".." */
+    put_deh_offset( &(deh[1]), DOT_DOT_OFFSET );
+    /* key of ".." for the root directory */
+    /* these two are from the inode, and are are LE */
+    deh[1].deh_dir_id = par_dirid;
+    deh[1].deh_objectid = par_objid;
+    deh[1].deh_state = 0; /* Endian safe if 0 */
+    put_deh_location( &(deh[1]), deh_location( &(deh[0])) - ROUND_UP( strlen( ".." ) ) );
+    mark_de_visible(&(deh[1]));
+
+    /* copy ".." and "." */
+    memcpy (body + deh_location( &(deh[0]) ), ".", 1);
+    memcpy (body + deh_location( &(deh[1]) ), "..", 2);
+}
diff --git a/fs/reiserfs/do_balan.c b/fs/reiserfs/do_balan.c
new file mode 100644
index 00000000000000..3dcfc05f2bddfb
--- /dev/null
+++ b/fs/reiserfs/do_balan.c
@@ -0,0 +1,1609 @@
+/*
+ * Copyright 2000-2002 by Hans Reiser, licensing governed by reiserfs/README
+ */
+
+/* Now we have all buffers that must be used in balancing of the tree 	*/
+/* Further calculations can not cause schedule(), and thus the buffer 	*/
+/* tree will be stable until the balancing will be finished 		*/
+/* balance the tree according to the analysis made before,		*/
+/* and using buffers obtained after all above.				*/
+
+
+/**
+ ** balance_leaf_when_delete
+ ** balance_leaf
+ ** do_balance
+ **
+ **/
+
+#include <linux/config.h>
+#include <asm/uaccess.h>
+#include <linux/sched.h>
+#include <linux/reiserfs_fs.h>
+
+#ifdef CONFIG_REISERFS_CHECK
+
+struct tree_balance * cur_tb = NULL; /* detects whether more than one
+                                        copy of tb exists as a means
+                                        of checking whether schedule
+                                        is interrupting do_balance */
+#endif
+
+
+inline void do_balance_mark_leaf_dirty (struct tree_balance * tb, 
+					struct buffer_head * bh, int flag)
+{
+    if (reiserfs_dont_log(tb->tb_sb)) {
+	if (!test_and_set_bit(BH_Dirty, &bh->b_state)) {
+	    __mark_buffer_dirty(bh) ;
+	    tb->need_balance_dirty = 1;
+	}
+    } else {
+	int windex = push_journal_writer("do_balance") ;
+	journal_mark_dirty(tb->transaction_handle, tb->transaction_handle->t_super, bh) ;
+	pop_journal_writer(windex) ;
+    }
+}
+
+#define do_balance_mark_internal_dirty do_balance_mark_leaf_dirty
+#define do_balance_mark_sb_dirty do_balance_mark_leaf_dirty
+
+
+/* summary: 
+ if deleting something ( tb->insert_size[0] < 0 )
+   return(balance_leaf_when_delete()); (flag d handled here)
+ else
+   if lnum is larger than 0 we put items into the left node
+   if rnum is larger than 0 we put items into the right node
+   if snum1 is larger than 0 we put items into the new node s1
+   if snum2 is larger than 0 we put items into the new node s2 
+Note that all *num* count new items being created.
+
+It would be easier to read balance_leaf() if each of these summary
+lines was a separate procedure rather than being inlined.  I think
+that there are many passages here and in balance_leaf_when_delete() in
+which two calls to one procedure can replace two passages, and it
+might save cache space and improve software maintenance costs to do so.  
+
+Vladimir made the perceptive comment that we should offload most of
+the decision making in this function into fix_nodes/check_balance, and
+then create some sort of structure in tb that says what actions should
+be performed by do_balance.
+
+-Hans */
+
+
+
+/* Balance leaf node in case of delete or cut: insert_size[0] < 0
+ *
+ * lnum, rnum can have values >= -1
+ *	-1 means that the neighbor must be joined with S
+ *	 0 means that nothing should be done with the neighbor
+ *	>0 means to shift entirely or partly the specified number of items to the neighbor
+ */
+static int balance_leaf_when_delete (struct tree_balance * tb, int flag)
+{
+    struct buffer_head * tbS0 = PATH_PLAST_BUFFER (tb->tb_path);
+    int item_pos = PATH_LAST_POSITION (tb->tb_path);
+    int pos_in_item = tb->tb_path->pos_in_item;
+    struct buffer_info bi;
+    int n;
+    struct item_head * ih;
+
+    RFALSE( tb->FR[0] && B_LEVEL (tb->FR[0]) != DISK_LEAF_NODE_LEVEL + 1,
+	    "vs- 12000: level: wrong FR %z\n", tb->FR[0]);
+    RFALSE( tb->blknum[0] > 1,
+	    "PAP-12005: tb->blknum == %d, can not be > 1", tb->blknum[0]);
+    RFALSE( ! tb->blknum[0] && ! PATH_H_PPARENT(tb->tb_path, 0),
+	    "PAP-12010: tree can not be empty");
+
+    ih = B_N_PITEM_HEAD (tbS0, item_pos);
+
+    /* Delete or truncate the item */
+
+    switch (flag) {
+    case M_DELETE:   /* delete item in S[0] */
+
+	RFALSE( ih_item_len(ih) + IH_SIZE != -tb->insert_size[0],
+	        "vs-12013: mode Delete, insert size %d, ih to be deleted %h",
+ 		 -tb->insert_size [0], ih);
+
+	bi.tb = tb;
+	bi.bi_bh = tbS0;
+	bi.bi_parent = PATH_H_PPARENT (tb->tb_path, 0);
+	bi.bi_position = PATH_H_POSITION (tb->tb_path, 1);
+	leaf_delete_items (&bi, 0, item_pos, 1, -1);
+
+	if ( ! item_pos && tb->CFL[0] ) {
+	    if ( B_NR_ITEMS(tbS0) ) {
+		replace_key(tb, tb->CFL[0],tb->lkey[0],tbS0,0);
+	    }
+	    else {
+		if ( ! PATH_H_POSITION (tb->tb_path, 1) )
+		    replace_key(tb, tb->CFL[0],tb->lkey[0],PATH_H_PPARENT(tb->tb_path, 0),0);
+	    }
+	} 
+
+	RFALSE( ! item_pos && !tb->CFL[0],
+		"PAP-12020: tb->CFL[0]==%p, tb->L[0]==%p", tb->CFL[0], tb->L[0]);
+    
+	break;
+
+    case M_CUT: {  /* cut item in S[0] */
+	bi.tb = tb;
+	bi.bi_bh = tbS0;
+	bi.bi_parent = PATH_H_PPARENT (tb->tb_path, 0);
+	bi.bi_position = PATH_H_POSITION (tb->tb_path, 1);
+	if (is_direntry_le_ih (ih)) {
+
+	    /* UFS unlink semantics are such that you can only delete one directory entry at a time. */
+	    /* when we cut a directory tb->insert_size[0] means number of entries to be cut (always 1) */
+	    tb->insert_size[0] = -1;
+	    leaf_cut_from_buffer (&bi, item_pos, pos_in_item, -tb->insert_size[0]);
+
+	    RFALSE( ! item_pos && ! pos_in_item && ! tb->CFL[0],
+		    "PAP-12030: can not change delimiting key. CFL[0]=%p", 
+		    tb->CFL[0]);
+
+	    if ( ! item_pos && ! pos_in_item && tb->CFL[0] ) {
+		replace_key(tb, tb->CFL[0],tb->lkey[0],tbS0,0);
+	    }
+	} else {
+	    leaf_cut_from_buffer (&bi, item_pos, pos_in_item, -tb->insert_size[0]);
+
+	    RFALSE( ! ih_item_len(ih),
+		"PAP-12035: cut must leave non-zero dynamic length of item");
+	}
+	break;
+    }
+
+    default:
+	print_cur_tb ("12040");
+	reiserfs_panic (tb->tb_sb, "PAP-12040: balance_leaf_when_delete: unexpectable mode: %s(%d)",
+			(flag == M_PASTE) ? "PASTE" : ((flag == M_INSERT) ? "INSERT" : "UNKNOWN"), flag);
+    }
+
+    /* the rule is that no shifting occurs unless by shifting a node can be freed */
+    n = B_NR_ITEMS(tbS0);
+    if ( tb->lnum[0] )     /* L[0] takes part in balancing */
+    {
+	if ( tb->lnum[0] == -1 )    /* L[0] must be joined with S[0] */
+	{
+	    if ( tb->rnum[0] == -1 )    /* R[0] must be also joined with S[0] */
+	    {			
+		if ( tb->FR[0] == PATH_H_PPARENT(tb->tb_path, 0) )
+		{
+		    /* all contents of all the 3 buffers will be in L[0] */
+		    if ( PATH_H_POSITION (tb->tb_path, 1) == 0 && 1 < B_NR_ITEMS(tb->FR[0]) )
+			replace_key(tb, tb->CFL[0],tb->lkey[0],tb->FR[0],1);
+
+		    leaf_move_items (LEAF_FROM_S_TO_L, tb, n, -1, 0);
+		    leaf_move_items (LEAF_FROM_R_TO_L, tb, B_NR_ITEMS(tb->R[0]), -1, 0);
+
+		    reiserfs_invalidate_buffer (tb, tbS0);
+		    reiserfs_invalidate_buffer (tb, tb->R[0]);
+
+		    return 0;
+		}
+		/* all contents of all the 3 buffers will be in R[0] */
+		leaf_move_items (LEAF_FROM_S_TO_R, tb, n, -1, 0);
+		leaf_move_items (LEAF_FROM_L_TO_R, tb, B_NR_ITEMS(tb->L[0]), -1, 0);
+
+		/* right_delimiting_key is correct in R[0] */
+		replace_key(tb, tb->CFR[0],tb->rkey[0],tb->R[0],0);
+
+		reiserfs_invalidate_buffer (tb, tbS0);
+		reiserfs_invalidate_buffer (tb, tb->L[0]);
+
+		return -1;
+	    }
+
+	    RFALSE( tb->rnum[0] != 0, 
+		    "PAP-12045: rnum must be 0 (%d)", tb->rnum[0]);
+	    /* all contents of L[0] and S[0] will be in L[0] */
+	    leaf_shift_left(tb, n, -1);
+
+	    reiserfs_invalidate_buffer (tb, tbS0);
+
+	    return 0;
+	}
+	/* a part of contents of S[0] will be in L[0] and the rest part of S[0] will be in R[0] */
+
+	RFALSE( ( tb->lnum[0] + tb->rnum[0] < n ) || 
+		( tb->lnum[0] + tb->rnum[0] > n+1 ),
+		"PAP-12050: rnum(%d) and lnum(%d) and item number(%d) in S[0] are not consistent",
+		tb->rnum[0], tb->lnum[0], n);
+	RFALSE( ( tb->lnum[0] + tb->rnum[0] == n ) && 
+		(tb->lbytes != -1 || tb->rbytes != -1),
+		"PAP-12055: bad rbytes (%d)/lbytes (%d) parameters when items are not split", 
+		tb->rbytes, tb->lbytes);
+	RFALSE( ( tb->lnum[0] + tb->rnum[0] == n + 1 ) && 
+		(tb->lbytes < 1 || tb->rbytes != -1),
+		"PAP-12060: bad rbytes (%d)/lbytes (%d) parameters when items are split", 
+		tb->rbytes, tb->lbytes);
+
+	leaf_shift_left (tb, tb->lnum[0], tb->lbytes);
+	leaf_shift_right(tb, tb->rnum[0], tb->rbytes);
+
+	reiserfs_invalidate_buffer (tb, tbS0);
+
+	return 0;
+    }
+
+    if ( tb->rnum[0] == -1 ) {
+	/* all contents of R[0] and S[0] will be in R[0] */
+	leaf_shift_right(tb, n, -1);
+	reiserfs_invalidate_buffer (tb, tbS0);
+	return 0;
+    }
+
+    RFALSE( tb->rnum[0], 
+	    "PAP-12065: bad rnum parameter must be 0 (%d)", tb->rnum[0]);
+    return 0;
+}
+
+
+static int balance_leaf (struct tree_balance * tb,
+			 struct item_head * ih,		/* item header of inserted item (this is on little endian) */
+			 const char * body,		/* body  of inserted item or bytes to paste */
+			 int flag,			/* i - insert, d - delete, c - cut, p - paste
+							   (see comment to do_balance) */
+			 struct item_head * insert_key,  /* in our processing of one level we sometimes determine what
+							    must be inserted into the next higher level.  This insertion
+							    consists of a key or two keys and their corresponding
+							    pointers */
+			 struct buffer_head ** insert_ptr /* inserted node-ptrs for the next level */
+    )
+{
+    struct buffer_head * tbS0 = PATH_PLAST_BUFFER (tb->tb_path);
+    int item_pos = PATH_LAST_POSITION (tb->tb_path);	/*  index into the array of item headers in S[0] 
+							    of the affected item */
+    struct buffer_info bi;
+    struct buffer_head *S_new[2];  /* new nodes allocated to hold what could not fit into S */
+    int snum[2];	    /* number of items that will be placed
+                               into S_new (includes partially shifted
+                               items) */
+    int sbytes[2];          /* if an item is partially shifted into S_new then 
+			       if it is a directory item 
+			       it is the number of entries from the item that are shifted into S_new
+			       else
+			       it is the number of bytes from the item that are shifted into S_new
+			    */
+    int n, i;
+    int ret_val;
+    int pos_in_item;
+    int zeros_num;
+
+    PROC_INFO_INC( tb -> tb_sb, balance_at[ 0 ] );
+
+    /* Make balance in case insert_size[0] < 0 */
+    if ( tb->insert_size[0] < 0 )
+	return balance_leaf_when_delete (tb, flag);
+  
+    zeros_num = 0;
+    if (flag == M_INSERT && body == 0)
+	zeros_num = ih_item_len( ih );
+
+    pos_in_item = tb->tb_path->pos_in_item;
+    /* for indirect item pos_in_item is measured in unformatted node
+       pointers. Recalculate to bytes */
+    if (flag != M_INSERT && is_indirect_le_ih (B_N_PITEM_HEAD (tbS0, item_pos)))
+	pos_in_item *= UNFM_P_SIZE;
+
+    if ( tb->lnum[0] > 0 ) {
+	/* Shift lnum[0] items from S[0] to the left neighbor L[0] */
+	if ( item_pos < tb->lnum[0] ) {
+	    /* new item or it part falls to L[0], shift it too */
+	    n = B_NR_ITEMS(tb->L[0]);
+
+	    switch (flag) {
+	    case M_INSERT:   /* insert item into L[0] */
+
+		if ( item_pos == tb->lnum[0] - 1 && tb->lbytes != -1 ) {
+		    /* part of new item falls into L[0] */
+		    int new_item_len;
+		    int version;
+
+		    ret_val = leaf_shift_left (tb, tb->lnum[0]-1, -1);
+
+		    /* Calculate item length to insert to S[0] */
+		    new_item_len = ih_item_len(ih) - tb->lbytes;
+		    /* Calculate and check item length to insert to L[0] */
+		    put_ih_item_len(ih, ih_item_len(ih) - new_item_len );
+
+		    RFALSE( ih_item_len(ih) <= 0,
+			    "PAP-12080: there is nothing to insert into L[0]: ih_item_len=%d",
+                            ih_item_len(ih));
+
+		    /* Insert new item into L[0] */
+		    bi.tb = tb;
+		    bi.bi_bh = tb->L[0];
+		    bi.bi_parent = tb->FL[0];
+		    bi.bi_position = get_left_neighbor_position (tb, 0);
+		    leaf_insert_into_buf (&bi, n + item_pos - ret_val, ih, body,
+					  zeros_num > ih_item_len(ih) ? ih_item_len(ih) : zeros_num);
+
+		    version = ih_version (ih);
+
+		    /* Calculate key component, item length and body to insert into S[0] */
+                    set_le_ih_k_offset( ih, le_ih_k_offset( ih ) + (tb->lbytes << (is_indirect_le_ih(ih)?tb->tb_sb->s_blocksize_bits-UNFM_P_SHIFT:0)) );
+
+		    put_ih_item_len( ih, new_item_len );
+		    if ( tb->lbytes >  zeros_num ) {
+			body += (tb->lbytes - zeros_num);
+			zeros_num = 0;
+		    }
+		    else
+			zeros_num -= tb->lbytes;
+
+		    RFALSE( ih_item_len(ih) <= 0,
+			"PAP-12085: there is nothing to insert into S[0]: ih_item_len=%d",
+			ih_item_len(ih));
+		} else {
+		    /* new item in whole falls into L[0] */
+		    /* Shift lnum[0]-1 items to L[0] */
+		    ret_val = leaf_shift_left(tb, tb->lnum[0]-1, tb->lbytes);
+		    /* Insert new item into L[0] */
+		    bi.tb = tb;
+		    bi.bi_bh = tb->L[0];
+		    bi.bi_parent = tb->FL[0];
+		    bi.bi_position = get_left_neighbor_position (tb, 0);
+		    leaf_insert_into_buf (&bi, n + item_pos - ret_val, ih, body, zeros_num);
+		    tb->insert_size[0] = 0;
+		    zeros_num = 0;
+		}
+		break;
+
+	    case M_PASTE:   /* append item in L[0] */
+
+		if ( item_pos == tb->lnum[0] - 1 && tb->lbytes != -1 ) {
+		    /* we must shift the part of the appended item */
+		    if ( is_direntry_le_ih (B_N_PITEM_HEAD (tbS0, item_pos))) {
+
+			RFALSE( zeros_num,
+				"PAP-12090: illegal parameter in case of a directory");
+			/* directory item */
+			if ( tb->lbytes > pos_in_item ) {
+			    /* new directory entry falls into L[0] */
+			    struct item_head * pasted;
+			    int l_pos_in_item = pos_in_item;
+							  
+			    /* Shift lnum[0] - 1 items in whole. Shift lbytes - 1 entries from given directory item */
+			    ret_val = leaf_shift_left(tb, tb->lnum[0], tb->lbytes - 1);
+			    if ( ret_val && ! item_pos ) {
+				pasted =  B_N_PITEM_HEAD(tb->L[0],B_NR_ITEMS(tb->L[0])-1);
+				l_pos_in_item += I_ENTRY_COUNT(pasted) - (tb->lbytes-1);
+			    }
+
+			    /* Append given directory entry to directory item */
+			    bi.tb = tb;
+			    bi.bi_bh = tb->L[0];
+			    bi.bi_parent = tb->FL[0];
+			    bi.bi_position = get_left_neighbor_position (tb, 0);
+			    leaf_paste_in_buffer (&bi, n + item_pos - ret_val, l_pos_in_item,
+						  tb->insert_size[0], body, zeros_num);
+
+			    /* previous string prepared space for pasting new entry, following string pastes this entry */
+
+			    /* when we have merge directory item, pos_in_item has been changed too */
+
+			    /* paste new directory entry. 1 is entry number */
+			    leaf_paste_entries (bi.bi_bh, n + item_pos - ret_val, l_pos_in_item, 1,
+						(struct reiserfs_de_head *)body, 
+						body + DEH_SIZE, tb->insert_size[0]
+				);
+			    tb->insert_size[0] = 0;
+			} else {
+			    /* new directory item doesn't fall into L[0] */
+			    /* Shift lnum[0]-1 items in whole. Shift lbytes directory entries from directory item number lnum[0] */
+			    leaf_shift_left (tb, tb->lnum[0], tb->lbytes);
+			}
+			/* Calculate new position to append in item body */
+			pos_in_item -= tb->lbytes;
+		    }
+		    else {
+			/* regular object */
+			RFALSE( tb->lbytes <= 0,
+			        "PAP-12095: there is nothing to shift to L[0]. lbytes=%d",
+				tb->lbytes);
+			RFALSE( pos_in_item != ih_item_len(B_N_PITEM_HEAD(tbS0, item_pos)),
+                                "PAP-12100: incorrect position to paste: item_len=%d, pos_in_item=%d",
+				ih_item_len(B_N_PITEM_HEAD(tbS0,item_pos)), pos_in_item);
+
+			if ( tb->lbytes >= pos_in_item ) {
+			    /* appended item will be in L[0] in whole */
+			    int l_n;
+
+			    /* this bytes number must be appended to the last item of L[h] */
+			    l_n = tb->lbytes - pos_in_item;
+
+			    /* Calculate new insert_size[0] */
+			    tb->insert_size[0] -= l_n;
+
+			    RFALSE( tb->insert_size[0] <= 0,
+				    "PAP-12105: there is nothing to paste into L[0]. insert_size=%d",
+				    tb->insert_size[0]);
+			    ret_val =  leaf_shift_left(tb,tb->lnum[0], 
+						       ih_item_len(B_N_PITEM_HEAD(tbS0,item_pos)));
+			    /* Append to body of item in L[0] */
+			    bi.tb = tb;
+			    bi.bi_bh = tb->L[0];
+			    bi.bi_parent = tb->FL[0];
+			    bi.bi_position = get_left_neighbor_position (tb, 0);
+			    leaf_paste_in_buffer(
+				&bi,n + item_pos - ret_val,
+				ih_item_len( B_N_PITEM_HEAD(tb->L[0],n+item_pos-ret_val)),
+				l_n,body, zeros_num > l_n ? l_n : zeros_num
+				);
+			    /* 0-th item in S0 can be only of DIRECT type when l_n != 0*/
+			    {
+				int version;
+				int temp_l = l_n;
+				
+				RFALSE (ih_item_len (B_N_PITEM_HEAD (tbS0, 0)),
+					"PAP-12106: item length must be 0");
+				RFALSE (comp_short_le_keys (B_N_PKEY (tbS0, 0),
+							    B_N_PKEY (tb->L[0],
+									    n + item_pos - ret_val)),
+					"PAP-12107: items must be of the same file");
+				if (is_indirect_le_ih(B_N_PITEM_HEAD (tb->L[0],
+								      n + item_pos - ret_val)))	{
+				    temp_l = l_n << (tb->tb_sb->s_blocksize_bits - UNFM_P_SHIFT);
+				}
+				/* update key of first item in S0 */
+				version = ih_version (B_N_PITEM_HEAD (tbS0, 0));
+				set_le_key_k_offset (version, B_N_PKEY (tbS0, 0), 
+						     le_key_k_offset (version, B_N_PKEY (tbS0, 0)) + temp_l);
+				/* update left delimiting key */
+				set_le_key_k_offset (version, B_N_PDELIM_KEY(tb->CFL[0],tb->lkey[0]),
+						     le_key_k_offset (version, B_N_PDELIM_KEY(tb->CFL[0],tb->lkey[0])) + temp_l);
+			    }
+
+			    /* Calculate new body, position in item and insert_size[0] */
+			    if ( l_n > zeros_num ) {
+				body += (l_n - zeros_num);
+				zeros_num = 0;
+			    }
+			    else
+				zeros_num -= l_n;
+			    pos_in_item = 0;	
+
+			    RFALSE( comp_short_le_keys 
+				    (B_N_PKEY(tbS0,0),
+				     B_N_PKEY(tb->L[0],B_NR_ITEMS(tb->L[0])-1)) ||
+				
+				    !op_is_left_mergeable 
+				    (B_N_PKEY (tbS0, 0), tbS0->b_size) ||
+				    !op_is_left_mergeable
+				    (B_N_PDELIM_KEY(tb->CFL[0],tb->lkey[0]), 
+				     tbS0->b_size),
+				    "PAP-12120: item must be merge-able with left neighboring item");
+			}
+			else /* only part of the appended item will be in L[0] */
+			{
+			    /* Calculate position in item for append in S[0] */
+			    pos_in_item -= tb->lbytes;
+
+			    RFALSE( pos_in_item <= 0,
+				    "PAP-12125: no place for paste. pos_in_item=%d", pos_in_item);
+
+			    /* Shift lnum[0] - 1 items in whole. Shift lbytes - 1 byte from item number lnum[0] */
+			    leaf_shift_left(tb,tb->lnum[0],tb->lbytes);
+			}
+		    }
+		}
+		else /* appended item will be in L[0] in whole */
+		{
+		    struct item_head * pasted;
+
+			if ( ! item_pos  && op_is_left_mergeable (B_N_PKEY (tbS0, 0), tbS0->b_size) )
+			{ /* if we paste into first item of S[0] and it is left mergable */
+			    /* then increment pos_in_item by the size of the last item in L[0] */
+			    pasted = B_N_PITEM_HEAD(tb->L[0],n-1);
+			    if ( is_direntry_le_ih (pasted) )
+				pos_in_item += ih_entry_count(pasted);
+			    else
+				pos_in_item += ih_item_len(pasted);
+			}
+
+		    /* Shift lnum[0] - 1 items in whole. Shift lbytes - 1 byte from item number lnum[0] */
+		    ret_val = leaf_shift_left(tb,tb->lnum[0],tb->lbytes);
+		    /* Append to body of item in L[0] */
+		    bi.tb = tb;
+		    bi.bi_bh = tb->L[0];
+		    bi.bi_parent = tb->FL[0];
+		    bi.bi_position = get_left_neighbor_position (tb, 0);
+		    leaf_paste_in_buffer (&bi, n + item_pos - ret_val, pos_in_item, tb->insert_size[0],
+					  body, zeros_num);
+
+		    /* if appended item is directory, paste entry */
+		    pasted = B_N_PITEM_HEAD (tb->L[0], n + item_pos - ret_val);
+		    if (is_direntry_le_ih (pasted))
+			leaf_paste_entries (
+			    bi.bi_bh, n + item_pos - ret_val, pos_in_item, 1, 
+			    (struct reiserfs_de_head *)body, body + DEH_SIZE, tb->insert_size[0]
+			    );
+		    /* if appended item is indirect item, put unformatted node into un list */
+		    if (is_indirect_le_ih (pasted))
+			set_ih_free_space (pasted, 0);
+		    tb->insert_size[0] = 0;
+		    zeros_num = 0;
+		}
+		break;
+	    default:    /* cases d and t */
+		reiserfs_panic (tb->tb_sb, "PAP-12130: balance_leaf: lnum > 0: unexpectable mode: %s(%d)",
+				(flag == M_DELETE) ? "DELETE" : ((flag == M_CUT) ? "CUT" : "UNKNOWN"), flag);
+	    }
+	} else { 
+	    /* new item doesn't fall into L[0] */
+	    leaf_shift_left(tb,tb->lnum[0],tb->lbytes);
+	}
+    }	/* tb->lnum[0] > 0 */
+
+    /* Calculate new item position */
+    item_pos -= ( tb->lnum[0] - (( tb->lbytes != -1 ) ? 1 : 0));
+
+    if ( tb->rnum[0] > 0 ) {
+	/* shift rnum[0] items from S[0] to the right neighbor R[0] */
+	n = B_NR_ITEMS(tbS0);
+	switch ( flag ) {
+
+	case M_INSERT:   /* insert item */
+	    if ( n - tb->rnum[0] < item_pos )
+	    { /* new item or its part falls to R[0] */
+		if ( item_pos == n - tb->rnum[0] + 1 && tb->rbytes != -1 )
+		{ /* part of new item falls into R[0] */
+		    loff_t old_key_comp, old_len, r_zeros_number;
+		    const char * r_body;
+		    int version;
+		    loff_t offset;
+
+		    leaf_shift_right(tb,tb->rnum[0]-1,-1);
+
+		    version = ih_version(ih);
+		    /* Remember key component and item length */
+                    old_key_comp = le_ih_k_offset( ih );
+		    old_len = ih_item_len(ih);
+
+		    /* Calculate key component and item length to insert into R[0] */
+                    offset = le_ih_k_offset( ih ) + ((old_len - tb->rbytes )<<(is_indirect_le_ih(ih)?tb->tb_sb->s_blocksize_bits-UNFM_P_SHIFT:0));
+                    set_le_ih_k_offset( ih, offset );
+		    put_ih_item_len( ih, tb->rbytes);
+		    /* Insert part of the item into R[0] */
+		    bi.tb = tb;
+		    bi.bi_bh = tb->R[0];
+		    bi.bi_parent = tb->FR[0];
+		    bi.bi_position = get_right_neighbor_position (tb, 0);
+		    if ( (old_len - tb->rbytes) > zeros_num ) {
+			r_zeros_number = 0;
+			r_body = body + (old_len - tb->rbytes) - zeros_num;
+		    }
+		    else {
+			r_body = body;
+			r_zeros_number = zeros_num - (old_len - tb->rbytes);
+			zeros_num -= r_zeros_number;
+		    }
+
+		    leaf_insert_into_buf (&bi, 0, ih, r_body, r_zeros_number);
+
+		    /* Replace right delimiting key by first key in R[0] */
+		    replace_key(tb, tb->CFR[0],tb->rkey[0],tb->R[0],0);
+
+		    /* Calculate key component and item length to insert into S[0] */
+                    set_le_ih_k_offset( ih, old_key_comp );
+		    put_ih_item_len( ih, old_len - tb->rbytes );
+
+		    tb->insert_size[0] -= tb->rbytes;
+
+		}
+		else /* whole new item falls into R[0] */
+		{					  
+		    /* Shift rnum[0]-1 items to R[0] */
+		    ret_val = leaf_shift_right(tb,tb->rnum[0]-1,tb->rbytes);
+		    /* Insert new item into R[0] */
+		    bi.tb = tb;
+		    bi.bi_bh = tb->R[0];
+		    bi.bi_parent = tb->FR[0];
+		    bi.bi_position = get_right_neighbor_position (tb, 0);
+		    leaf_insert_into_buf (&bi, item_pos - n + tb->rnum[0] - 1, ih, body, zeros_num);
+
+		    if ( item_pos - n + tb->rnum[0] - 1 == 0 ) {
+			replace_key(tb, tb->CFR[0],tb->rkey[0],tb->R[0],0);
+
+		    }
+		    zeros_num = tb->insert_size[0] = 0;
+		}
+	    }
+	    else /* new item or part of it doesn't fall into R[0] */
+	    {
+		leaf_shift_right(tb,tb->rnum[0],tb->rbytes);
+	    }
+	    break;
+
+	case M_PASTE:   /* append item */
+
+	    if ( n - tb->rnum[0] <= item_pos )  /* pasted item or part of it falls to R[0] */
+	    {
+		if ( item_pos == n - tb->rnum[0] && tb->rbytes != -1 )
+		{ /* we must shift the part of the appended item */
+		    if ( is_direntry_le_ih (B_N_PITEM_HEAD(tbS0, item_pos)))
+		    { /* we append to directory item */
+			int entry_count;
+
+			RFALSE( zeros_num,
+				"PAP-12145: illegal parametr in case of a directory");
+			entry_count = I_ENTRY_COUNT(B_N_PITEM_HEAD(tbS0, item_pos));
+			if ( entry_count - tb->rbytes < pos_in_item )
+			    /* new directory entry falls into R[0] */
+			{
+			    int paste_entry_position;
+
+			    RFALSE( tb->rbytes - 1 >= entry_count || 
+				    ! tb->insert_size[0],
+				    "PAP-12150: no enough of entries to shift to R[0]: rbytes=%d, entry_count=%d",
+				    tb->rbytes, entry_count);
+			    /* Shift rnum[0]-1 items in whole. Shift rbytes-1 directory entries from directory item number rnum[0] */
+			    leaf_shift_right(tb,tb->rnum[0],tb->rbytes - 1);
+			    /* Paste given directory entry to directory item */
+			    paste_entry_position = pos_in_item - entry_count + tb->rbytes - 1;
+			    bi.tb = tb;
+			    bi.bi_bh = tb->R[0];
+			    bi.bi_parent = tb->FR[0];
+			    bi.bi_position = get_right_neighbor_position (tb, 0);
+			    leaf_paste_in_buffer (&bi, 0, paste_entry_position,
+						  tb->insert_size[0],body,zeros_num);
+			    /* paste entry */
+			    leaf_paste_entries (
+				bi.bi_bh, 0, paste_entry_position, 1, (struct reiserfs_de_head *)body, 
+				body + DEH_SIZE, tb->insert_size[0]
+				);								
+						
+			    if ( paste_entry_position == 0 ) {
+				/* change delimiting keys */
+				replace_key(tb, tb->CFR[0],tb->rkey[0],tb->R[0],0);
+			    }
+
+			    tb->insert_size[0] = 0;
+			    pos_in_item++;
+			}
+			else /* new directory entry doesn't fall into R[0] */
+			{
+			    leaf_shift_right(tb,tb->rnum[0],tb->rbytes);
+			}
+		    }
+		    else /* regular object */
+		    {
+			int n_shift, n_rem, r_zeros_number;
+			const char * r_body;
+
+			/* Calculate number of bytes which must be shifted from appended item */
+			if ( (n_shift = tb->rbytes - tb->insert_size[0]) < 0 )
+			    n_shift = 0;
+
+			RFALSE(pos_in_item != ih_item_len(B_N_PITEM_HEAD (tbS0, item_pos)),
+			       "PAP-12155: invalid position to paste. ih_item_len=%d, pos_in_item=%d",
+                               pos_in_item, ih_item_len( B_N_PITEM_HEAD(tbS0,item_pos)));
+
+			leaf_shift_right(tb,tb->rnum[0],n_shift);
+			/* Calculate number of bytes which must remain in body after appending to R[0] */
+			if ( (n_rem = tb->insert_size[0] - tb->rbytes) < 0 )
+			    n_rem = 0;
+			
+			{
+			  int version;
+			  unsigned long temp_rem = n_rem;
+			  
+			  version = ih_version (B_N_PITEM_HEAD (tb->R[0],0));
+			  if (is_indirect_le_key(version,B_N_PKEY(tb->R[0],0))){
+			      temp_rem = n_rem << (tb->tb_sb->s_blocksize_bits -
+			                 UNFM_P_SHIFT);
+			  }
+			  set_le_key_k_offset (version, B_N_PKEY(tb->R[0],0), 
+					       le_key_k_offset (version, B_N_PKEY(tb->R[0],0)) + temp_rem);
+			  set_le_key_k_offset (version, B_N_PDELIM_KEY(tb->CFR[0],tb->rkey[0]), 
+					       le_key_k_offset (version, B_N_PDELIM_KEY(tb->CFR[0],tb->rkey[0])) + temp_rem);
+			}
+/*		  k_offset (B_N_PKEY(tb->R[0],0)) += n_rem;
+		  k_offset (B_N_PDELIM_KEY(tb->CFR[0],tb->rkey[0])) += n_rem;*/
+			do_balance_mark_internal_dirty (tb, tb->CFR[0], 0);
+
+			/* Append part of body into R[0] */
+			bi.tb = tb;
+			bi.bi_bh = tb->R[0];
+			bi.bi_parent = tb->FR[0];
+			bi.bi_position = get_right_neighbor_position (tb, 0);
+			if ( n_rem > zeros_num ) {
+			    r_zeros_number = 0;
+			    r_body = body + n_rem - zeros_num;
+			}
+			else {
+			    r_body = body;
+			    r_zeros_number = zeros_num - n_rem;
+			    zeros_num -= r_zeros_number;
+			}
+
+			leaf_paste_in_buffer(&bi, 0, n_shift, tb->insert_size[0] - n_rem, r_body, r_zeros_number);
+
+			if (is_indirect_le_ih (B_N_PITEM_HEAD(tb->R[0],0))) {
+#if 0
+			    RFALSE( n_rem,
+				    "PAP-12160: paste more than one unformatted node pointer");
+#endif
+			    set_ih_free_space (B_N_PITEM_HEAD(tb->R[0],0), 0);
+			}
+			tb->insert_size[0] = n_rem;
+			if ( ! n_rem )
+			    pos_in_item ++;
+		    }
+		}
+		else /* pasted item in whole falls into R[0] */
+		{
+		    struct item_head * pasted;
+
+		    ret_val = leaf_shift_right(tb,tb->rnum[0],tb->rbytes);
+		    /* append item in R[0] */
+		    if ( pos_in_item >= 0 ) {
+			bi.tb = tb;
+			bi.bi_bh = tb->R[0];
+			bi.bi_parent = tb->FR[0];
+			bi.bi_position = get_right_neighbor_position (tb, 0);
+			leaf_paste_in_buffer(&bi,item_pos - n + tb->rnum[0], pos_in_item,
+					     tb->insert_size[0],body, zeros_num);
+		    }
+
+		    /* paste new entry, if item is directory item */
+		    pasted = B_N_PITEM_HEAD(tb->R[0], item_pos - n + tb->rnum[0]);
+		    if (is_direntry_le_ih (pasted) && pos_in_item >= 0 ) {
+			leaf_paste_entries (
+			    bi.bi_bh, item_pos - n + tb->rnum[0], pos_in_item, 1, 
+			    (struct reiserfs_de_head *)body, body + DEH_SIZE, tb->insert_size[0]
+			    );
+			if ( ! pos_in_item ) {
+
+			    RFALSE( item_pos - n + tb->rnum[0],
+				    "PAP-12165: directory item must be first item of node when pasting is in 0th position");
+
+			    /* update delimiting keys */
+			    replace_key(tb, tb->CFR[0],tb->rkey[0],tb->R[0],0);
+			}
+		    }
+
+		    if (is_indirect_le_ih (pasted))
+			set_ih_free_space (pasted, 0);
+		    zeros_num = tb->insert_size[0] = 0;
+		}
+	    }
+	    else /* new item doesn't fall into R[0] */
+	    {
+		leaf_shift_right(tb,tb->rnum[0],tb->rbytes);
+	    }
+	    break;
+	default:    /* cases d and t */
+	    reiserfs_panic (tb->tb_sb, "PAP-12175: balance_leaf: rnum > 0: unexpectable mode: %s(%d)",
+			    (flag == M_DELETE) ? "DELETE" : ((flag == M_CUT) ? "CUT" : "UNKNOWN"), flag);
+	}
+    
+    }	/* tb->rnum[0] > 0 */
+
+
+    RFALSE( tb->blknum[0] > 3,
+	    "PAP-12180: blknum can not be %d. It must be <= 3",  tb->blknum[0]);
+    RFALSE( tb->blknum[0] < 0,
+	    "PAP-12185: blknum can not be %d. It must be >= 0",  tb->blknum[0]);
+
+    /* if while adding to a node we discover that it is possible to split
+       it in two, and merge the left part into the left neighbor and the
+       right part into the right neighbor, eliminating the node */
+    if ( tb->blknum[0] == 0 ) { /* node S[0] is empty now */
+
+	RFALSE( ! tb->lnum[0] || ! tb->rnum[0],
+	        "PAP-12190: lnum and rnum must not be zero");
+	/* if insertion was done before 0-th position in R[0], right
+	   delimiting key of the tb->L[0]'s and left delimiting key are
+	   not set correctly */
+	if (tb->CFL[0]) {
+	    if (!tb->CFR[0])
+		reiserfs_panic (tb->tb_sb, "vs-12195: balance_leaf: CFR not initialized");
+	    copy_key (B_N_PDELIM_KEY (tb->CFL[0], tb->lkey[0]), B_N_PDELIM_KEY (tb->CFR[0], tb->rkey[0]));
+	    do_balance_mark_internal_dirty (tb, tb->CFL[0], 0);
+	}
+
+	reiserfs_invalidate_buffer(tb,tbS0);									
+	return 0;
+    }
+
+
+    /* Fill new nodes that appear in place of S[0] */
+
+    /* I am told that this copying is because we need an array to enable
+       the looping code. -Hans */
+    snum[0] = tb->s1num,
+	snum[1] = tb->s2num;
+    sbytes[0] = tb->s1bytes;
+    sbytes[1] = tb->s2bytes;
+    for( i = tb->blknum[0] - 2; i >= 0; i-- ) {
+
+	RFALSE( !snum[i], "PAP-12200: snum[%d] == %d. Must be > 0", i, snum[i]);
+
+	/* here we shift from S to S_new nodes */
+
+	S_new[i] = get_FEB(tb);
+
+	/* initialized block type and tree level */
+        set_blkh_level( B_BLK_HEAD(S_new[i]), DISK_LEAF_NODE_LEVEL );
+
+
+	n = B_NR_ITEMS(tbS0);
+	
+	switch (flag) {
+	case M_INSERT:   /* insert item */
+
+	    if ( n - snum[i] < item_pos )
+	    { /* new item or it's part falls to first new node S_new[i]*/
+		if ( item_pos == n - snum[i] + 1 && sbytes[i] != -1 )
+		{ /* part of new item falls into S_new[i] */
+		    int old_key_comp, old_len, r_zeros_number;
+		    const char * r_body;
+		    int version;
+
+		    /* Move snum[i]-1 items from S[0] to S_new[i] */
+		    leaf_move_items (LEAF_FROM_S_TO_SNEW, tb, snum[i] - 1, -1, S_new[i]);
+		    /* Remember key component and item length */
+		    version = ih_version (ih);
+                    old_key_comp = le_ih_k_offset( ih );
+		    old_len = ih_item_len(ih);
+
+		    /* Calculate key component and item length to insert into S_new[i] */
+                    set_le_ih_k_offset( ih,
+                                le_ih_k_offset(ih) + ((old_len - sbytes[i] )<<(is_indirect_le_ih(ih)?tb->tb_sb->s_blocksize_bits-UNFM_P_SHIFT:0) ));
+
+		    put_ih_item_len( ih, sbytes[i] );
+
+		    /* Insert part of the item into S_new[i] before 0-th item */
+		    bi.tb = tb;
+		    bi.bi_bh = S_new[i];
+		    bi.bi_parent = 0;
+		    bi.bi_position = 0;
+
+		    if ( (old_len - sbytes[i]) > zeros_num ) {
+			r_zeros_number = 0;
+			r_body = body + (old_len - sbytes[i]) - zeros_num;
+		    }
+		    else {
+			r_body = body;
+			r_zeros_number = zeros_num - (old_len - sbytes[i]);
+			zeros_num -= r_zeros_number;
+		    }
+
+		    leaf_insert_into_buf (&bi, 0, ih, r_body, r_zeros_number);
+
+		    /* Calculate key component and item length to insert into S[i] */
+                    set_le_ih_k_offset( ih, old_key_comp );
+		    put_ih_item_len( ih, old_len - sbytes[i] );
+		    tb->insert_size[0] -= sbytes[i];
+		}
+		else /* whole new item falls into S_new[i] */
+		{
+		    /* Shift snum[0] - 1 items to S_new[i] (sbytes[i] of split item) */
+		    leaf_move_items (LEAF_FROM_S_TO_SNEW, tb, snum[i] - 1, sbytes[i], S_new[i]);
+
+		    /* Insert new item into S_new[i] */
+		    bi.tb = tb;
+		    bi.bi_bh = S_new[i];
+		    bi.bi_parent = 0;
+		    bi.bi_position = 0;
+		    leaf_insert_into_buf (&bi, item_pos - n + snum[i] - 1, ih, body, zeros_num);
+
+		    zeros_num = tb->insert_size[0] = 0;
+		}
+	    }
+
+	    else /* new item or it part don't falls into S_new[i] */
+	    {
+		leaf_move_items (LEAF_FROM_S_TO_SNEW, tb, snum[i], sbytes[i], S_new[i]);
+	    }
+	    break;
+
+	case M_PASTE:   /* append item */
+
+	    if ( n - snum[i] <= item_pos )  /* pasted item or part if it falls to S_new[i] */
+	    {
+		if ( item_pos == n - snum[i] && sbytes[i] != -1 )
+		{ /* we must shift part of the appended item */
+		    struct item_head * aux_ih;
+
+		    RFALSE( ih, "PAP-12210: ih must be 0");
+
+		    if ( is_direntry_le_ih (aux_ih = B_N_PITEM_HEAD(tbS0,item_pos))) {
+			/* we append to directory item */
+
+			int entry_count;
+		
+			entry_count = ih_entry_count(aux_ih);
+
+			if ( entry_count - sbytes[i] < pos_in_item  && pos_in_item <= entry_count ) {
+			    /* new directory entry falls into S_new[i] */
+		  
+			    RFALSE( ! tb->insert_size[0],
+				    "PAP-12215: insert_size is already 0");
+			    RFALSE( sbytes[i] - 1 >= entry_count,
+				    "PAP-12220: there are no so much entries (%d), only %d",
+				    sbytes[i] - 1, entry_count);
+
+			    /* Shift snum[i]-1 items in whole. Shift sbytes[i] directory entries from directory item number snum[i] */
+			    leaf_move_items (LEAF_FROM_S_TO_SNEW, tb, snum[i], sbytes[i]-1, S_new[i]);
+			    /* Paste given directory entry to directory item */
+			    bi.tb = tb;
+			    bi.bi_bh = S_new[i];
+			    bi.bi_parent = 0;
+			    bi.bi_position = 0;
+			    leaf_paste_in_buffer (&bi, 0, pos_in_item - entry_count + sbytes[i] - 1,
+						  tb->insert_size[0], body,zeros_num);
+			    /* paste new directory entry */
+			    leaf_paste_entries (
+				bi.bi_bh, 0, pos_in_item - entry_count + sbytes[i] - 1,
+				1, (struct reiserfs_de_head *)body, body + DEH_SIZE,
+				tb->insert_size[0]
+				);
+			    tb->insert_size[0] = 0;
+			    pos_in_item++;
+			} else { /* new directory entry doesn't fall into S_new[i] */
+			    leaf_move_items (LEAF_FROM_S_TO_SNEW, tb, snum[i], sbytes[i], S_new[i]);
+			}
+		    }
+		    else /* regular object */
+		    {
+			int n_shift, n_rem, r_zeros_number;
+			const char * r_body;
+
+			RFALSE( pos_in_item != ih_item_len(B_N_PITEM_HEAD(tbS0,item_pos)) ||
+			        tb->insert_size[0] <= 0,
+			        "PAP-12225: item too short or insert_size <= 0");
+
+			/* Calculate number of bytes which must be shifted from appended item */
+			n_shift = sbytes[i] - tb->insert_size[0];
+			if ( n_shift < 0 )
+			    n_shift = 0;
+			leaf_move_items (LEAF_FROM_S_TO_SNEW, tb, snum[i], n_shift, S_new[i]);
+
+			/* Calculate number of bytes which must remain in body after append to S_new[i] */
+			n_rem = tb->insert_size[0] - sbytes[i];
+			if ( n_rem < 0 )
+			    n_rem = 0;
+			/* Append part of body into S_new[0] */
+			bi.tb = tb;
+			bi.bi_bh = S_new[i];
+			bi.bi_parent = 0;
+			bi.bi_position = 0;
+
+			if ( n_rem > zeros_num ) {
+			    r_zeros_number = 0;
+			    r_body = body + n_rem - zeros_num;
+			}
+			else {
+			    r_body = body;
+			    r_zeros_number = zeros_num - n_rem;
+			    zeros_num -= r_zeros_number;
+			}
+
+			leaf_paste_in_buffer(&bi, 0, n_shift, tb->insert_size[0]-n_rem, r_body,r_zeros_number);
+			{
+			    struct item_head * tmp;
+
+			    tmp = B_N_PITEM_HEAD(S_new[i],0);
+			    if (is_indirect_le_ih (tmp)) {
+				set_ih_free_space (tmp, 0);
+				set_le_ih_k_offset( tmp, le_ih_k_offset(tmp) + 
+					            (n_rem << (tb->tb_sb->s_blocksize_bits -
+						     UNFM_P_SHIFT)));
+			    } else {
+				set_le_ih_k_offset( tmp, le_ih_k_offset(tmp) + 
+				                    n_rem );
+			    }
+			}
+
+			tb->insert_size[0] = n_rem;
+			if ( ! n_rem )
+			    pos_in_item++;
+		    }
+		}
+		else
+		    /* item falls wholly into S_new[i] */
+		{
+		    int ret_val;
+		    struct item_head * pasted;
+
+#ifdef CONFIG_REISERFS_CHECK
+		    struct item_head * ih = B_N_PITEM_HEAD(tbS0,item_pos);
+
+		    if ( ! is_direntry_le_ih(ih) && (pos_in_item != ih_item_len(ih) ||
+						     tb->insert_size[0] <= 0) )
+			reiserfs_panic (tb->tb_sb, "PAP-12235: balance_leaf: pos_in_item must be equal to ih_item_len");
+#endif /* CONFIG_REISERFS_CHECK */
+
+		    ret_val = leaf_move_items (LEAF_FROM_S_TO_SNEW, tb, snum[i], sbytes[i], S_new[i]);
+
+		    RFALSE( ret_val,
+			    "PAP-12240: unexpected value returned by leaf_move_items (%d)",
+			    ret_val);
+
+		    /* paste into item */
+		    bi.tb = tb;
+		    bi.bi_bh = S_new[i];
+		    bi.bi_parent = 0;
+		    bi.bi_position = 0;
+		    leaf_paste_in_buffer(&bi, item_pos - n + snum[i], pos_in_item, tb->insert_size[0], body, zeros_num);
+
+		    pasted = B_N_PITEM_HEAD(S_new[i], item_pos - n + snum[i]);
+		    if (is_direntry_le_ih (pasted))
+		    {
+			leaf_paste_entries (
+			    bi.bi_bh, item_pos - n + snum[i], pos_in_item, 1, 
+			    (struct reiserfs_de_head *)body, body + DEH_SIZE, tb->insert_size[0]
+			    );
+		    }
+
+		    /* if we paste to indirect item update ih_free_space */
+		    if (is_indirect_le_ih (pasted))
+			set_ih_free_space (pasted, 0);
+		    zeros_num = tb->insert_size[0] = 0;
+		}
+	    }
+
+	    else /* pasted item doesn't fall into S_new[i] */
+	    {
+		leaf_move_items (LEAF_FROM_S_TO_SNEW, tb, snum[i], sbytes[i], S_new[i]);
+	    }
+	    break;
+	default:    /* cases d and t */
+	    reiserfs_panic (tb->tb_sb, "PAP-12245: balance_leaf: blknum > 2: unexpectable mode: %s(%d)",
+			    (flag == M_DELETE) ? "DELETE" : ((flag == M_CUT) ? "CUT" : "UNKNOWN"), flag);
+	}
+
+	memcpy (insert_key + i,B_N_PKEY(S_new[i],0),KEY_SIZE);
+	insert_ptr[i] = S_new[i];
+
+	RFALSE( (atomic_read (&(S_new[i]->b_count)) != 1) &&
+		(atomic_read(&(S_new[i]->b_count)) != 2 ||
+		 !(buffer_journaled(S_new[i]) || 
+		   buffer_journal_dirty(S_new[i]))), 
+		"PAP-12247: S_new[%d] : (%b)\n", i, S_new[i]);
+
+
+    }
+
+    /* if the affected item was not wholly shifted then we perform all necessary operations on that part or whole of the
+       affected item which remains in S */
+    if ( 0 <= item_pos && item_pos < tb->s0num )
+    { /* if we must insert or append into buffer S[0] */
+
+	switch (flag)
+	{
+	case M_INSERT:   /* insert item into S[0] */
+	    bi.tb = tb;
+	    bi.bi_bh = tbS0;
+	    bi.bi_parent = PATH_H_PPARENT (tb->tb_path, 0);
+	    bi.bi_position = PATH_H_POSITION (tb->tb_path, 1);
+	    leaf_insert_into_buf (&bi, item_pos, ih, body, zeros_num);
+
+	    /* If we insert the first key change the delimiting key */
+	    if( item_pos == 0 ) {
+		if (tb->CFL[0]) /* can be 0 in reiserfsck */
+		    replace_key(tb, tb->CFL[0], tb->lkey[0],tbS0,0);
+
+	    }
+	    break;
+
+	case M_PASTE: {  /* append item in S[0] */
+	    struct item_head * pasted;
+
+	    pasted = B_N_PITEM_HEAD (tbS0, item_pos);
+	    /* when directory, may be new entry already pasted */
+	    if (is_direntry_le_ih (pasted)) {
+		if ( pos_in_item >= 0 &&
+		    pos_in_item <= ih_entry_count(pasted) ) {
+
+		    RFALSE( ! tb->insert_size[0], 
+			    "PAP-12260: insert_size is 0 already");
+
+		    /* prepare space */
+		    bi.tb = tb;
+		    bi.bi_bh = tbS0;
+		    bi.bi_parent = PATH_H_PPARENT (tb->tb_path, 0);
+		    bi.bi_position = PATH_H_POSITION (tb->tb_path, 1);
+		    leaf_paste_in_buffer(&bi, item_pos, pos_in_item, tb->insert_size[0], body, zeros_num);
+
+		    /* paste entry */
+		    leaf_paste_entries (
+			bi.bi_bh, item_pos, pos_in_item, 1, (struct reiserfs_de_head *)body,
+			body + DEH_SIZE, tb->insert_size[0]
+			);
+		    if ( ! item_pos && ! pos_in_item ) {
+			RFALSE( !tb->CFL[0] || !tb->L[0], 
+				"PAP-12270: CFL[0]/L[0] must be specified");
+			if (tb->CFL[0]) {
+			    replace_key(tb, tb->CFL[0], tb->lkey[0],tbS0,0);
+
+			}
+		    }
+		    tb->insert_size[0] = 0;
+		}
+	    } else { /* regular object */
+		if ( pos_in_item == ih_item_len(pasted) ) {
+
+		    RFALSE( tb->insert_size[0] <= 0,
+			    "PAP-12275: insert size must not be %d",
+                            tb->insert_size[0]);
+		    bi.tb = tb;
+		    bi.bi_bh = tbS0;
+		    bi.bi_parent = PATH_H_PPARENT (tb->tb_path, 0);
+		    bi.bi_position = PATH_H_POSITION (tb->tb_path, 1);
+		    leaf_paste_in_buffer (&bi, item_pos, pos_in_item, tb->insert_size[0], body, zeros_num);
+
+		    if (is_indirect_le_ih (pasted)) {
+#if 0
+			RFALSE( tb->insert_size[0] != UNFM_P_SIZE,
+				"PAP-12280: insert_size for indirect item must be %d, not %d",
+				UNFM_P_SIZE, tb->insert_size[0]);
+#endif
+			set_ih_free_space (pasted, 0);
+		    }
+		    tb->insert_size[0] = 0;
+		}
+
+#ifdef CONFIG_REISERFS_CHECK
+		else {
+		    if ( tb->insert_size[0] ) {
+			print_cur_tb ("12285");
+			reiserfs_panic (tb->tb_sb, "PAP-12285: balance_leaf: insert_size must be 0 (%d)", tb->insert_size[0]);
+		    }
+		}
+#endif /* CONFIG_REISERFS_CHECK */
+	    
+	    }
+	} /* case M_PASTE: */
+	}
+    }
+
+#ifdef CONFIG_REISERFS_CHECK
+    if ( flag == M_PASTE && tb->insert_size[0] ) {
+	print_cur_tb ("12290");
+	reiserfs_panic (tb->tb_sb, "PAP-12290: balance_leaf: insert_size is still not 0 (%d)", tb->insert_size[0]);
+    }
+#endif /* CONFIG_REISERFS_CHECK */
+
+    return 0;
+} /* Leaf level of the tree is balanced (end of balance_leaf) */
+
+
+
+/* Make empty node */
+void make_empty_node (struct buffer_info * bi)
+{
+    struct block_head * blkh;
+
+    RFALSE( bi->bi_bh == NULL, "PAP-12295: pointer to the buffer is NULL");
+
+    blkh = B_BLK_HEAD(bi->bi_bh);
+    set_blkh_nr_item( blkh, 0 );
+    set_blkh_free_space( blkh, MAX_CHILD_SIZE(bi->bi_bh) );
+
+    if (bi->bi_parent)
+	B_N_CHILD (bi->bi_parent, bi->bi_position)->dc_size = 0; /* Endian safe if 0 */
+}
+
+
+/* Get first empty buffer */
+struct buffer_head * get_FEB (struct tree_balance * tb)
+{
+    int i;
+    struct buffer_head * first_b;
+    struct buffer_info bi;
+
+    for (i = 0; i < MAX_FEB_SIZE; i ++)
+	if (tb->FEB[i] != 0)
+	    break;
+
+    if (i == MAX_FEB_SIZE)
+	reiserfs_panic(tb->tb_sb, "vs-12300: get_FEB: FEB list is empty");
+
+    bi.tb = tb;
+    bi.bi_bh = first_b = tb->FEB[i];
+    bi.bi_parent = 0;
+    bi.bi_position = 0;
+    make_empty_node (&bi);
+    set_bit(BH_Uptodate, &first_b->b_state);
+    tb->FEB[i] = 0;
+    tb->used[i] = first_b;
+
+    return(first_b);
+}
+
+
+/* This is now used because reiserfs_free_block has to be able to
+** schedule.
+*/
+static void store_thrown (struct tree_balance * tb, struct buffer_head * bh)
+{
+    int i;
+
+    if (buffer_dirty (bh))
+      reiserfs_warning (tb->tb_sb, "store_thrown deals with dirty buffer\n");
+    for (i = 0; i < sizeof (tb->thrown)/sizeof (tb->thrown[0]); i ++)
+	if (!tb->thrown[i]) {
+	    tb->thrown[i] = bh;
+	    get_bh(bh) ; /* free_thrown puts this */
+	    return;
+	}
+    reiserfs_warning (tb->tb_sb, "store_thrown: too many thrown buffers\n");
+}
+
+static void free_thrown(struct tree_balance *tb) {
+    int i ;
+    unsigned long blocknr ;
+    for (i = 0; i < sizeof (tb->thrown)/sizeof (tb->thrown[0]); i++) {
+	if (tb->thrown[i]) {
+	    blocknr = tb->thrown[i]->b_blocknr ;
+	    if (buffer_dirty (tb->thrown[i]))
+	      reiserfs_warning (tb->tb_sb, "free_thrown deals with dirty buffer %ld\n", blocknr);
+	    brelse(tb->thrown[i]) ; /* incremented in store_thrown */
+	    reiserfs_free_block (tb->transaction_handle, blocknr);
+	}
+    }
+}
+
+void reiserfs_invalidate_buffer (struct tree_balance * tb, struct buffer_head * bh)
+{
+    struct block_head *blkh;
+    blkh = B_BLK_HEAD(bh);
+    set_blkh_level( blkh, FREE_LEVEL );
+    set_blkh_nr_item( blkh, 0 );
+    
+    mark_buffer_clean (bh);
+    /* reiserfs_free_block is no longer schedule safe 
+    reiserfs_free_block (tb->transaction_handle, tb->tb_sb, bh->b_blocknr);
+    */
+
+    store_thrown (tb, bh);
+}
+
+/* Replace n_dest'th key in buffer dest by n_src'th key of buffer src.*/
+void replace_key (struct tree_balance * tb, struct buffer_head * dest, int n_dest,
+		  struct buffer_head * src, int n_src)
+{
+
+    RFALSE( dest == NULL || src == NULL,
+	    "vs-12305: source or destination buffer is 0 (src=%p, dest=%p)",
+	    src, dest);
+    RFALSE( ! B_IS_KEYS_LEVEL (dest),
+	    "vs-12310: invalid level (%z) for destination buffer. dest must be leaf",
+	    dest);
+    RFALSE( n_dest < 0 || n_src < 0,
+	    "vs-12315: src(%d) or dest(%d) key number < 0", n_src, n_dest);
+    RFALSE( n_dest >= B_NR_ITEMS(dest) || n_src >= B_NR_ITEMS(src),
+	    "vs-12320: src(%d(%d)) or dest(%d(%d)) key number is too big",
+	    n_src, B_NR_ITEMS(src), n_dest, B_NR_ITEMS(dest));
+   
+    if (B_IS_ITEMS_LEVEL (src))
+	/* source buffer contains leaf node */
+	memcpy (B_N_PDELIM_KEY(dest,n_dest), B_N_PITEM_HEAD(src,n_src), KEY_SIZE);
+    else
+	memcpy (B_N_PDELIM_KEY(dest,n_dest), B_N_PDELIM_KEY(src,n_src), KEY_SIZE);
+
+    do_balance_mark_internal_dirty (tb, dest, 0);
+}
+
+
+int get_left_neighbor_position (
+				struct tree_balance * tb, 
+				int h
+				)
+{
+  int Sh_position = PATH_H_POSITION (tb->tb_path, h + 1);
+
+  RFALSE( PATH_H_PPARENT (tb->tb_path, h) == 0 || tb->FL[h] == 0,
+	  "vs-12325: FL[%d](%p) or F[%d](%p) does not exist", 
+	  h, tb->FL[h], h, PATH_H_PPARENT (tb->tb_path, h));
+
+  if (Sh_position == 0)
+    return B_NR_ITEMS (tb->FL[h]);
+  else
+    return Sh_position - 1;
+}
+
+
+int get_right_neighbor_position (struct tree_balance * tb, int h)
+{
+  int Sh_position = PATH_H_POSITION (tb->tb_path, h + 1);
+
+  RFALSE( PATH_H_PPARENT (tb->tb_path, h) == 0 || tb->FR[h] == 0,
+	  "vs-12330: F[%d](%p) or FR[%d](%p) does not exist", 
+	  h, PATH_H_PPARENT (tb->tb_path, h), h, tb->FR[h]);
+
+  if (Sh_position == B_NR_ITEMS (PATH_H_PPARENT (tb->tb_path, h)))
+    return 0;
+  else
+    return Sh_position + 1;
+}
+
+
+#ifdef CONFIG_REISERFS_CHECK
+
+int is_reusable (struct super_block * s, unsigned long block, int bit_value);
+static void check_internal_node (struct super_block * s, struct buffer_head * bh, char * mes)
+{
+  struct disk_child * dc;
+  int i;
+
+  RFALSE( !bh, "PAP-12336: bh == 0");
+
+  if (!bh || !B_IS_IN_TREE (bh))
+    return;
+ 
+  RFALSE( !buffer_dirty (bh) && 
+	  !(buffer_journaled(bh) || buffer_journal_dirty(bh)),
+	  "PAP-12337: buffer (%b) must be dirty", bh);
+  dc = B_N_CHILD (bh, 0);
+
+  for (i = 0; i <= B_NR_ITEMS (bh); i ++, dc ++) {
+    if (!is_reusable (s, dc_block_number(dc), 1) ) {
+      print_cur_tb (mes);
+      reiserfs_panic (s, "PAP-12338: check_internal_node: invalid child pointer %y in %b", dc, bh);
+    }
+  }
+}
+
+
+static int locked_or_not_in_tree (struct buffer_head * bh, char * which)
+{
+  if ( buffer_locked (bh) || !B_IS_IN_TREE (bh) ) {
+    reiserfs_warning (NULL, "vs-12339: locked_or_not_in_tree: %s (%b)\n", which, bh);
+    return 1;
+  } 
+  return 0;
+}
+
+
+static int check_before_balancing (struct tree_balance * tb)
+{
+  int retval = 0;	
+
+  if ( cur_tb ) {
+    reiserfs_panic (tb->tb_sb, "vs-12335: check_before_balancing: "
+		    "suspect that schedule occurred based on cur_tb not being null at this point in code. "
+		    "do_balance cannot properly handle schedule occuring while it runs.");
+  }
+  
+  /* double check that buffers that we will modify are unlocked. (fix_nodes should already have
+     prepped all of these for us). */
+  if ( tb->lnum[0] ) {
+    retval |= locked_or_not_in_tree (tb->L[0], "L[0]");
+    retval |= locked_or_not_in_tree (tb->FL[0], "FL[0]");
+    retval |= locked_or_not_in_tree (tb->CFL[0], "CFL[0]");
+    check_leaf (tb->L[0]);
+  }
+  if ( tb->rnum[0] ) {
+    retval |= locked_or_not_in_tree (tb->R[0], "R[0]");
+    retval |= locked_or_not_in_tree (tb->FR[0], "FR[0]");
+    retval |= locked_or_not_in_tree (tb->CFR[0], "CFR[0]");
+    check_leaf (tb->R[0]);
+  }
+  retval |= locked_or_not_in_tree (PATH_PLAST_BUFFER (tb->tb_path), "S[0]");
+  check_leaf (PATH_PLAST_BUFFER (tb->tb_path));
+
+  return retval;
+}
+
+
+void check_after_balance_leaf (struct tree_balance * tb)
+{
+    if (tb->lnum[0]) {
+	if (B_FREE_SPACE (tb->L[0]) != 
+	    MAX_CHILD_SIZE (tb->L[0]) - dc_size(B_N_CHILD (tb->FL[0], get_left_neighbor_position (tb, 0)))) {
+	    print_cur_tb ("12221");
+	    reiserfs_panic (tb->tb_sb, "PAP-12355: check_after_balance_leaf: shift to left was incorrect");
+	}
+    }
+    if (tb->rnum[0]) {
+	if (B_FREE_SPACE (tb->R[0]) != 
+	    MAX_CHILD_SIZE (tb->R[0]) - dc_size(B_N_CHILD (tb->FR[0], get_right_neighbor_position (tb, 0)))) {
+	    print_cur_tb ("12222");
+	    reiserfs_panic (tb->tb_sb, "PAP-12360: check_after_balance_leaf: shift to right was incorrect");
+	}
+    }
+    if (PATH_H_PBUFFER(tb->tb_path,1) &&
+	(B_FREE_SPACE (PATH_H_PBUFFER(tb->tb_path,0)) != 
+		    (MAX_CHILD_SIZE (PATH_H_PBUFFER(tb->tb_path,0)) -
+		    dc_size(B_N_CHILD (PATH_H_PBUFFER(tb->tb_path,1),
+		    PATH_H_POSITION (tb->tb_path, 1)))) )) {
+	int left = B_FREE_SPACE (PATH_H_PBUFFER(tb->tb_path,0));
+	int right = (MAX_CHILD_SIZE (PATH_H_PBUFFER(tb->tb_path,0)) -
+		    dc_size(B_N_CHILD (PATH_H_PBUFFER(tb->tb_path,1),
+			PATH_H_POSITION (tb->tb_path, 1))));
+	print_cur_tb ("12223");
+	reiserfs_warning( tb->tb_sb, 
+	    "B_FREE_SPACE (PATH_H_PBUFFER(tb->tb_path,0)) = %d; "
+    	    "MAX_CHILD_SIZE (%d) - dc_size( %y, %d ) [%d] = %d\n",
+	    left,
+	    MAX_CHILD_SIZE (PATH_H_PBUFFER(tb->tb_path,0)),
+	    PATH_H_PBUFFER(tb->tb_path,1),
+	    PATH_H_POSITION (tb->tb_path, 1),
+	    dc_size(B_N_CHILD (PATH_H_PBUFFER(tb->tb_path,1), PATH_H_POSITION (tb->tb_path, 1 )) ),
+	    right );
+	reiserfs_panic (tb->tb_sb, "PAP-12365: check_after_balance_leaf: S is incorrect");
+    }
+}
+
+
+void check_leaf_level (struct tree_balance * tb)
+{
+  check_leaf (tb->L[0]);
+  check_leaf (tb->R[0]);
+  check_leaf (PATH_PLAST_BUFFER (tb->tb_path));
+}
+
+void check_internal_levels (struct tree_balance * tb)
+{
+  int h;
+
+  /* check all internal nodes */
+  for (h = 1; tb->insert_size[h]; h ++) {
+    check_internal_node (tb->tb_sb, PATH_H_PBUFFER (tb->tb_path, h), "BAD BUFFER ON PATH");
+    if (tb->lnum[h])
+      check_internal_node (tb->tb_sb, tb->L[h], "BAD L");
+    if (tb->rnum[h])
+      check_internal_node (tb->tb_sb, tb->R[h], "BAD R");
+  }
+
+}
+
+#endif
+
+
+
+
+
+
+/* Now we have all of the buffers that must be used in balancing of
+   the tree.  We rely on the assumption that schedule() will not occur
+   while do_balance works. ( Only interrupt handlers are acceptable.)
+   We balance the tree according to the analysis made before this,
+   using buffers already obtained.  For SMP support it will someday be
+   necessary to add ordered locking of tb. */
+
+/* Some interesting rules of balancing:
+
+   we delete a maximum of two nodes per level per balancing: we never
+   delete R, when we delete two of three nodes L, S, R then we move
+   them into R.
+
+   we only delete L if we are deleting two nodes, if we delete only
+   one node we delete S
+
+   if we shift leaves then we shift as much as we can: this is a
+   deliberate policy of extremism in node packing which results in
+   higher average utilization after repeated random balance operations
+   at the cost of more memory copies and more balancing as a result of
+   small insertions to full nodes.
+
+   if we shift internal nodes we try to evenly balance the node
+   utilization, with consequent less balancing at the cost of lower
+   utilization.
+
+   one could argue that the policy for directories in leaves should be
+   that of internal nodes, but we will wait until another day to
+   evaluate this....  It would be nice to someday measure and prove
+   these assumptions as to what is optimal....
+
+*/
+
+static inline void do_balance_starts (struct tree_balance *tb)
+{
+    /* use print_cur_tb() to see initial state of struct
+       tree_balance */
+
+    /* store_print_tb (tb); */
+
+    /* do not delete, just comment it out */
+/*    print_tb(flag, PATH_LAST_POSITION(tb->tb_path), tb->tb_path->pos_in_item, tb, 
+	     "check");*/
+    RFALSE( check_before_balancing (tb), "PAP-12340: locked buffers in TB");
+#ifdef CONFIG_REISERFS_CHECK
+    cur_tb = tb;
+#endif
+}
+
+
+static inline void do_balance_completed (struct tree_balance * tb)
+{
+    
+#ifdef CONFIG_REISERFS_CHECK
+    check_leaf_level (tb);
+    check_internal_levels (tb);
+    cur_tb = NULL;
+#endif
+
+    /* reiserfs_free_block is no longer schedule safe.  So, we need to
+    ** put the buffers we want freed on the thrown list during do_balance,
+    ** and then free them now
+    */
+
+    tb->tb_sb->u.reiserfs_sb.s_do_balance ++;
+
+
+    /* release all nodes hold to perform the balancing */
+    unfix_nodes(tb);
+
+    free_thrown(tb) ;
+}
+
+
+
+
+
+void do_balance (struct tree_balance * tb, /* tree_balance structure */
+		 struct item_head * ih,	   /* item header of inserted item */
+		 const char * body,  /* body  of inserted item or bytes to paste */
+		 int flag)  /* i - insert, d - delete
+			       c - cut, p - paste
+						      
+			       Cut means delete part of an item
+			       (includes removing an entry from a
+			       directory).
+						      
+			       Delete means delete whole item.
+						      
+			       Insert means add a new item into the
+			       tree.
+						      						      
+			       Paste means to append to the end of an
+			       existing file or to insert a directory
+			       entry.  */
+{
+    int child_pos, /* position of a child node in its parent */
+	h;	   /* level of the tree being processed */
+    struct item_head insert_key[2]; /* in our processing of one level
+				       we sometimes determine what
+				       must be inserted into the next
+				       higher level.  This insertion
+				       consists of a key or two keys
+				       and their corresponding
+				       pointers */
+    struct buffer_head *insert_ptr[2]; /* inserted node-ptrs for the next
+					  level */
+
+    tb->tb_mode = flag;
+    tb->need_balance_dirty = 0;
+
+    if (FILESYSTEM_CHANGED_TB(tb)) {
+        reiserfs_panic(tb->tb_sb, "clm-6000: do_balance, fs generation has changed\n") ;
+    }
+    /* if we have no real work to do  */
+    if ( ! tb->insert_size[0] ) {
+	reiserfs_warning (tb->tb_sb, "PAP-12350: do_balance: insert_size == 0, mode == %c\n ",
+			  flag);
+	unfix_nodes(tb);
+	return;
+    }
+
+    atomic_inc (&(fs_generation (tb->tb_sb)));
+    do_balance_starts (tb);
+    
+	/* balance leaf returns 0 except if combining L R and S into
+	   one node.  see balance_internal() for explanation of this
+	   line of code.*/
+	child_pos = PATH_H_B_ITEM_ORDER (tb->tb_path, 0) +
+	  balance_leaf (tb, ih, body, flag, insert_key, insert_ptr);
+
+#ifdef CONFIG_REISERFS_CHECK
+    check_after_balance_leaf (tb);
+#endif
+
+    /* Balance internal level of the tree. */
+    for ( h = 1; h < MAX_HEIGHT && tb->insert_size[h]; h++ )
+	child_pos = balance_internal (tb, h, child_pos, insert_key, insert_ptr);
+
+
+    do_balance_completed (tb);
+
+}
diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c
new file mode 100644
index 00000000000000..e6f35cd2d1a4f6
--- /dev/null
+++ b/fs/reiserfs/file.c
@@ -0,0 +1,147 @@
+/*
+ * Copyright 2000-2002 by Hans Reiser, licensing governed by reiserfs/README
+ */
+
+
+#include <linux/sched.h>
+#include <linux/reiserfs_fs.h>
+#include <linux/smp_lock.h>
+
+/*
+** We pack the tails of files on file close, not at the time they are written.
+** This implies an unnecessary copy of the tail and an unnecessary indirect item
+** insertion/balancing, for files that are written in one write.
+** It avoids unnecessary tail packings (balances) for files that are written in
+** multiple writes and are small enough to have tails.
+** 
+** file_release is called by the VFS layer when the file is closed.  If
+** this is the last open file descriptor, and the file
+** small enough to have a tail, and the tail is currently in an
+** unformatted node, the tail is converted back into a direct item.
+** 
+** We use reiserfs_truncate_file to pack the tail, since it already has
+** all the conditions coded.  
+*/
+static int reiserfs_file_release (struct inode * inode, struct file * filp)
+{
+
+    struct reiserfs_transaction_handle th ;
+    int windex ;
+
+    if (!S_ISREG (inode->i_mode))
+	BUG ();
+
+    /* fast out for when nothing needs to be done */
+    if ((atomic_read(&inode->i_count) > 1 ||
+         !(inode->u.reiserfs_i.i_flags & i_pack_on_close_mask) || 
+         !tail_has_to_be_packed(inode))       && 
+	inode->u.reiserfs_i.i_prealloc_count <= 0) {
+	return 0;
+    }    
+    
+    lock_kernel() ;
+    down (&inode->i_sem); 
+    journal_begin(&th, inode->i_sb, JOURNAL_PER_BALANCE_CNT * 3) ;
+    reiserfs_update_inode_transaction(inode) ;
+
+#ifdef REISERFS_PREALLOCATE
+    reiserfs_discard_prealloc (&th, inode);
+#endif
+    journal_end(&th, inode->i_sb, JOURNAL_PER_BALANCE_CNT * 3) ;
+
+    if (atomic_read(&inode->i_count) <= 1 &&
+	(inode->u.reiserfs_i.i_flags & i_pack_on_close_mask) &&
+        tail_has_to_be_packed (inode)) {
+	/* if regular file is released by last holder and it has been
+	   appended (we append by unformatted node only) or its direct
+	   item(s) had to be converted, then it may have to be
+	   indirect2direct converted */
+	windex = push_journal_writer("file_release") ;
+	reiserfs_truncate_file(inode, 0) ;
+	pop_journal_writer(windex) ;
+    }
+    up (&inode->i_sem); 
+    unlock_kernel() ;
+    return 0;
+}
+
+static void reiserfs_vfs_truncate_file(struct inode *inode) {
+    reiserfs_truncate_file(inode, 1) ;
+}
+
+/* Sync a reiserfs file. */
+static int reiserfs_sync_file(
+			      struct file   * p_s_filp,
+			      struct dentry * p_s_dentry,
+			      int datasync
+			      ) {
+  struct inode * p_s_inode = p_s_dentry->d_inode;
+  int n_err;
+
+  lock_kernel() ;
+
+  if (!S_ISREG(p_s_inode->i_mode))
+      BUG ();
+
+  n_err = fsync_inode_buffers(p_s_inode) ;
+  n_err |= fsync_inode_data_buffers(p_s_inode);
+  reiserfs_commit_for_inode(p_s_inode) ;
+  unlock_kernel() ;
+  return ( n_err < 0 ) ? -EIO : 0;
+}
+
+static int reiserfs_setattr(struct dentry *dentry, struct iattr *attr) {
+    struct inode *inode = dentry->d_inode ;
+    int error ;
+    if (attr->ia_valid & ATTR_SIZE) {
+	/* version 2 items will be caught by the s_maxbytes check
+	** done for us in vmtruncate
+	*/
+	if (get_inode_item_key_version(inode) == KEY_FORMAT_3_5 &&
+	    attr->ia_size > MAX_NON_LFS)
+            return -EFBIG ;
+
+	/* fill in hole pointers in the expanding truncate case. */
+        if (attr->ia_size > inode->i_size) {
+	    error = generic_cont_expand(inode, attr->ia_size) ;
+	    if (inode->u.reiserfs_i.i_prealloc_count > 0) {
+		struct reiserfs_transaction_handle th ;
+		/* we're changing at most 2 bitmaps, inode + super */
+		journal_begin(&th, inode->i_sb, 4) ;
+		reiserfs_discard_prealloc (&th, inode);
+		journal_end(&th, inode->i_sb, 4) ;
+	    }
+	    if (error)
+	        return error ;
+	}
+    }
+
+    if ((((attr->ia_valid & ATTR_UID) && (attr->ia_uid & ~0xffff)) ||
+	 ((attr->ia_valid & ATTR_GID) && (attr->ia_gid & ~0xffff))) &&
+	(get_inode_sd_version (inode) == STAT_DATA_V1))
+		/* stat data of format v3.5 has 16 bit uid and gid */
+	    return -EINVAL;
+
+    error = inode_change_ok(inode, attr) ;
+    if (!error)
+        inode_setattr(inode, attr) ;
+
+    return error ;
+}
+
+struct file_operations reiserfs_file_operations = {
+    read:	generic_file_read,
+    write:	generic_file_write,
+    ioctl:	reiserfs_ioctl,
+    mmap:	generic_file_mmap,
+    release:	reiserfs_file_release,
+    fsync:	reiserfs_sync_file,
+};
+
+
+struct  inode_operations reiserfs_file_inode_operations = {
+    truncate:	reiserfs_vfs_truncate_file,
+    setattr:    reiserfs_setattr,
+};
+
+
diff --git a/fs/reiserfs/fix_node.c b/fs/reiserfs/fix_node.c
new file mode 100644
index 00000000000000..05586f26ab7efc
--- /dev/null
+++ b/fs/reiserfs/fix_node.c
@@ -0,0 +1,2535 @@
+/*
+ * Copyright 2000-2002 by Hans Reiser, licensing governed by reiserfs/README
+ */
+
+/**
+ ** old_item_num
+ ** old_entry_num
+ ** set_entry_sizes
+ ** create_virtual_node
+ ** check_left
+ ** check_right
+ ** directory_part_size
+ ** get_num_ver
+ ** set_parameters
+ ** is_leaf_removable
+ ** are_leaves_removable
+ ** get_empty_nodes
+ ** get_lfree
+ ** get_rfree
+ ** is_left_neighbor_in_cache
+ ** decrement_key
+ ** get_far_parent
+ ** get_parents
+ ** can_node_be_removed
+ ** ip_check_balance
+ ** dc_check_balance_internal
+ ** dc_check_balance_leaf
+ ** dc_check_balance
+ ** check_balance
+ ** get_direct_parent
+ ** get_neighbors
+ ** fix_nodes
+ ** 
+ ** 
+ **/
+
+
+#include <linux/config.h>
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/locks.h>
+#include <linux/reiserfs_fs.h>
+
+
+/* To make any changes in the tree we find a node, that contains item
+   to be changed/deleted or position in the node we insert a new item
+   to. We call this node S. To do balancing we need to decide what we
+   will shift to left/right neighbor, or to a new node, where new item
+   will be etc. To make this analysis simpler we build virtual
+   node. Virtual node is an array of items, that will replace items of
+   node S. (For instance if we are going to delete an item, virtual
+   node does not contain it). Virtual node keeps information about
+   item sizes and types, mergeability of first and last items, sizes
+   of all entries in directory item. We use this array of items when
+   calculating what we can shift to neighbors and how many nodes we
+   have to have if we do not any shiftings, if we shift to left/right
+   neighbor or to both. */
+
+
+/* taking item number in virtual node, returns number of item, that it has in source buffer */
+static inline int old_item_num (int new_num, int affected_item_num, int mode)
+{
+  if (mode == M_PASTE || mode == M_CUT || new_num < affected_item_num)
+    return new_num;
+
+  if (mode == M_INSERT) {
+
+    RFALSE( new_num == 0, 
+	    "vs-8005: for INSERT mode and item number of inserted item");
+
+    return new_num - 1;
+  }
+
+  RFALSE( mode != M_DELETE,
+	  "vs-8010: old_item_num: mode must be M_DELETE (mode = \'%c\'", mode);
+  /* delete mode */
+  return new_num + 1;
+}
+
+static void create_virtual_node (struct tree_balance * tb, int h)
+{
+    struct item_head * ih;
+    struct virtual_node * vn = tb->tb_vn;
+    int new_num;
+    struct buffer_head * Sh;	/* this comes from tb->S[h] */
+
+    Sh = PATH_H_PBUFFER (tb->tb_path, h);
+
+    /* size of changed node */
+    vn->vn_size = MAX_CHILD_SIZE (Sh) - B_FREE_SPACE (Sh) + tb->insert_size[h];
+
+    /* for internal nodes array if virtual items is not created */
+    if (h) {
+	vn->vn_nr_item = (vn->vn_size - DC_SIZE) / (DC_SIZE + KEY_SIZE);
+	return;
+    }
+
+    /* number of items in virtual node  */
+    vn->vn_nr_item = B_NR_ITEMS (Sh) + ((vn->vn_mode == M_INSERT)? 1 : 0) - ((vn->vn_mode == M_DELETE)? 1 : 0);
+
+    /* first virtual item */
+    vn->vn_vi = (struct virtual_item *)(tb->tb_vn + 1);
+    memset (vn->vn_vi, 0, vn->vn_nr_item * sizeof (struct virtual_item));
+    vn->vn_free_ptr += vn->vn_nr_item * sizeof (struct virtual_item);
+
+
+    /* first item in the node */
+    ih = B_N_PITEM_HEAD (Sh, 0);
+
+    /* define the mergeability for 0-th item (if it is not being deleted) */
+    if (op_is_left_mergeable (&(ih->ih_key), Sh->b_size) && (vn->vn_mode != M_DELETE || vn->vn_affected_item_num))
+	    vn->vn_vi[0].vi_type |= VI_TYPE_LEFT_MERGEABLE;
+
+    /* go through all items those remain in the virtual node (except for the new (inserted) one) */
+    for (new_num = 0; new_num < vn->vn_nr_item; new_num ++) {
+	int j;
+	struct virtual_item * vi = vn->vn_vi + new_num;
+	int is_affected = ((new_num != vn->vn_affected_item_num) ? 0 : 1);
+    
+
+	if (is_affected && vn->vn_mode == M_INSERT)
+	    continue;
+    
+	/* get item number in source node */
+	j = old_item_num (new_num, vn->vn_affected_item_num, vn->vn_mode);
+    
+	vi->vi_item_len += ih_item_len(ih + j) + IH_SIZE;
+	vi->vi_ih = ih + j;
+	vi->vi_item = B_I_PITEM (Sh, ih + j);
+	vi->vi_uarea = vn->vn_free_ptr;
+
+	// FIXME: there is no check, that item operation did not
+	// consume too much memory
+	vn->vn_free_ptr += op_create_vi (vn, vi, is_affected, tb->insert_size [0]);
+	if (tb->vn_buf + tb->vn_buf_size < vn->vn_free_ptr)
+	    reiserfs_panic (tb->tb_sb, "vs-8030: create_virtual_node: "
+			    "virtual node space consumed");
+
+	if (!is_affected)
+	    /* this is not being changed */
+	    continue;
+    
+	if (vn->vn_mode == M_PASTE || vn->vn_mode == M_CUT) {
+	    vn->vn_vi[new_num].vi_item_len += tb->insert_size[0];
+	    vi->vi_new_data = vn->vn_data; // pointer to data which is going to be pasted
+	}
+    }
+
+  
+    /* virtual inserted item is not defined yet */
+    if (vn->vn_mode == M_INSERT) {
+	struct virtual_item * vi = vn->vn_vi + vn->vn_affected_item_num;
+      
+	RFALSE( vn->vn_ins_ih == 0,
+		"vs-8040: item header of inserted item is not specified");
+	vi->vi_item_len = tb->insert_size[0];
+	vi->vi_ih = vn->vn_ins_ih;
+	vi->vi_item = vn->vn_data;
+	vi->vi_uarea = vn->vn_free_ptr;
+	
+	op_create_vi (vn, vi, 0/*not pasted or cut*/, tb->insert_size [0]);
+    }
+  
+    /* set right merge flag we take right delimiting key and check whether it is a mergeable item */
+    if (tb->CFR[0]) {
+	struct key * key;
+
+	key = B_N_PDELIM_KEY (tb->CFR[0], tb->rkey[0]);
+	if (op_is_left_mergeable (key, Sh->b_size) && (vn->vn_mode != M_DELETE ||
+						       vn->vn_affected_item_num != B_NR_ITEMS (Sh) - 1))
+		vn->vn_vi[vn->vn_nr_item-1].vi_type |= VI_TYPE_RIGHT_MERGEABLE;
+
+#ifdef CONFIG_REISERFS_CHECK
+	if (op_is_left_mergeable (key, Sh->b_size) &&
+	    !(vn->vn_mode != M_DELETE || vn->vn_affected_item_num != B_NR_ITEMS (Sh) - 1) ) {
+	    /* we delete last item and it could be merged with right neighbor's first item */
+	    if (!(B_NR_ITEMS (Sh) == 1 && is_direntry_le_ih (B_N_PITEM_HEAD (Sh, 0)) &&
+		  I_ENTRY_COUNT (B_N_PITEM_HEAD (Sh, 0)) == 1)) {
+		/* node contains more than 1 item, or item is not directory item, or this item contains more than 1 entry */
+		print_block (Sh, 0, -1, -1);
+		reiserfs_panic (tb->tb_sb, "vs-8045: create_virtual_node: rdkey %k, affected item==%d (mode==%c) Must be %c", 
+				key, vn->vn_affected_item_num, vn->vn_mode, M_DELETE);
+	    } else
+		/* we can delete directory item, that has only one directory entry in it */
+		;
+	}
+#endif
+    
+    }
+}
+
+
+/* using virtual node check, how many items can be shifted to left
+   neighbor */
+static void check_left (struct tree_balance * tb, int h, int cur_free)
+{
+    int i;
+    struct virtual_node * vn = tb->tb_vn;
+    struct virtual_item * vi;
+    int d_size, ih_size;
+
+    RFALSE( cur_free < 0, "vs-8050: cur_free (%d) < 0", cur_free);
+
+    /* internal level */
+    if (h > 0) {	
+	tb->lnum[h] = cur_free / (DC_SIZE + KEY_SIZE);
+	return;
+    }
+
+    /* leaf level */
+
+    if (!cur_free || !vn->vn_nr_item) {
+	/* no free space or nothing to move */
+	tb->lnum[h] = 0;
+	tb->lbytes = -1;
+	return;
+    }
+
+    RFALSE( !PATH_H_PPARENT (tb->tb_path, 0),
+	    "vs-8055: parent does not exist or invalid");
+
+    vi = vn->vn_vi;
+    if ((unsigned int)cur_free >= (vn->vn_size - ((vi->vi_type & VI_TYPE_LEFT_MERGEABLE) ? IH_SIZE : 0))) {
+	/* all contents of S[0] fits into L[0] */
+
+	RFALSE( vn->vn_mode == M_INSERT || vn->vn_mode == M_PASTE,
+		"vs-8055: invalid mode or balance condition failed");
+
+	tb->lnum[0] = vn->vn_nr_item;
+	tb->lbytes = -1;
+	return;
+    }
+  
+
+    d_size = 0, ih_size = IH_SIZE;
+
+    /* first item may be merge with last item in left neighbor */
+    if (vi->vi_type & VI_TYPE_LEFT_MERGEABLE)
+	d_size = -((int)IH_SIZE), ih_size = 0;
+
+    tb->lnum[0] = 0;
+    for (i = 0; i < vn->vn_nr_item; i ++, ih_size = IH_SIZE, d_size = 0, vi ++) {
+	d_size += vi->vi_item_len;
+	if (cur_free >= d_size) {	
+	    /* the item can be shifted entirely */
+	    cur_free -= d_size;
+	    tb->lnum[0] ++;
+	    continue;
+	}
+      
+	/* the item cannot be shifted entirely, try to split it */
+	/* check whether L[0] can hold ih and at least one byte of the item body */
+	if (cur_free <= ih_size) {
+	    /* cannot shift even a part of the current item */
+	    tb->lbytes = -1;
+	    return;
+	}
+	cur_free -= ih_size;
+    
+	tb->lbytes = op_check_left (vi, cur_free, 0, 0);
+	if (tb->lbytes != -1)
+	    /* count partially shifted item */
+	    tb->lnum[0] ++;
+    
+	break;
+    }
+  
+    return;
+}
+
+
+/* using virtual node check, how many items can be shifted to right
+   neighbor */
+static void check_right (struct tree_balance * tb, int h, int cur_free)
+{
+    int i;
+    struct virtual_node * vn = tb->tb_vn;
+    struct virtual_item * vi;
+    int d_size, ih_size;
+
+    RFALSE( cur_free < 0, "vs-8070: cur_free < 0");
+    
+    /* internal level */
+    if (h > 0) {
+	tb->rnum[h] = cur_free / (DC_SIZE + KEY_SIZE);
+	return;
+    }
+    
+    /* leaf level */
+    
+    if (!cur_free || !vn->vn_nr_item) {
+	/* no free space  */
+	tb->rnum[h] = 0;
+	tb->rbytes = -1;
+	return;
+    }
+  
+    RFALSE( !PATH_H_PPARENT (tb->tb_path, 0),
+	    "vs-8075: parent does not exist or invalid");
+  
+    vi = vn->vn_vi + vn->vn_nr_item - 1;
+    if ((unsigned int)cur_free >= (vn->vn_size - ((vi->vi_type & VI_TYPE_RIGHT_MERGEABLE) ? IH_SIZE : 0))) {
+	/* all contents of S[0] fits into R[0] */
+	
+	RFALSE( vn->vn_mode == M_INSERT || vn->vn_mode == M_PASTE,
+		"vs-8080: invalid mode or balance condition failed");
+
+	tb->rnum[h] = vn->vn_nr_item;
+	tb->rbytes = -1;
+	return;
+    }
+    
+    d_size = 0, ih_size = IH_SIZE;
+    
+    /* last item may be merge with first item in right neighbor */
+    if (vi->vi_type & VI_TYPE_RIGHT_MERGEABLE)
+	d_size = -(int)IH_SIZE, ih_size = 0;
+
+    tb->rnum[0] = 0;
+    for (i = vn->vn_nr_item - 1; i >= 0; i --, d_size = 0, ih_size = IH_SIZE, vi --) {
+	d_size += vi->vi_item_len;
+	if (cur_free >= d_size) {	
+	    /* the item can be shifted entirely */
+	    cur_free -= d_size;
+	    tb->rnum[0] ++;
+	    continue;
+	}
+	
+	/* check whether R[0] can hold ih and at least one byte of the item body */
+	if ( cur_free <= ih_size ) {    /* cannot shift even a part of the current item */
+	    tb->rbytes = -1;
+	    return;
+	}
+	
+	/* R[0] can hold the header of the item and at least one byte of its body */
+	cur_free -= ih_size;	/* cur_free is still > 0 */
+
+	tb->rbytes = op_check_right (vi, cur_free);
+	if (tb->rbytes != -1)
+	    /* count partially shifted item */
+	    tb->rnum[0] ++;
+    
+	break;
+    }
+	
+  return;
+}
+
+
+/*
+ * from - number of items, which are shifted to left neighbor entirely
+ * to - number of item, which are shifted to right neighbor entirely
+ * from_bytes - number of bytes of boundary item (or directory entries) which are shifted to left neighbor
+ * to_bytes - number of bytes of boundary item (or directory entries) which are shifted to right neighbor */
+static int get_num_ver (int mode, struct tree_balance * tb, int h,
+			int from, int from_bytes,
+			int to,   int to_bytes,
+			short * snum012, int flow
+    )
+{
+    int i;
+    int cur_free;
+    //    int bytes;
+    int units;
+    struct virtual_node * vn = tb->tb_vn;
+    //    struct virtual_item * vi;
+
+    int total_node_size, max_node_size, current_item_size;
+    int needed_nodes;
+    int start_item, 	/* position of item we start filling node from */
+	end_item,	/* position of item we finish filling node by */
+	start_bytes,/* number of first bytes (entries for directory) of start_item-th item 
+		       we do not include into node that is being filled */
+	end_bytes;	/* number of last bytes (entries for directory) of end_item-th item 
+			   we do node include into node that is being filled */
+    int split_item_positions[2]; /* these are positions in virtual item of
+				    items, that are split between S[0] and
+				    S1new and S1new and S2new */
+
+    split_item_positions[0] = -1;
+    split_item_positions[1] = -1;
+
+    /* We only create additional nodes if we are in insert or paste mode
+       or we are in replace mode at the internal level. If h is 0 and
+       the mode is M_REPLACE then in fix_nodes we change the mode to
+       paste or insert before we get here in the code.  */
+    RFALSE( tb->insert_size[h] < 0  || (mode != M_INSERT && mode != M_PASTE),
+	    "vs-8100: insert_size < 0 in overflow");
+
+    max_node_size = MAX_CHILD_SIZE (PATH_H_PBUFFER (tb->tb_path, h));
+
+    /* snum012 [0-2] - number of items, that lay
+       to S[0], first new node and second new node */
+    snum012[3] = -1;	/* s1bytes */
+    snum012[4] = -1;	/* s2bytes */
+
+    /* internal level */
+    if (h > 0) {
+	i = ((to - from) * (KEY_SIZE + DC_SIZE) + DC_SIZE);
+	if (i == max_node_size)
+	    return 1;
+	return (i / max_node_size + 1);
+    }
+
+    /* leaf level */
+    needed_nodes = 1;
+    total_node_size = 0;
+    cur_free = max_node_size;
+
+    // start from 'from'-th item
+    start_item = from;
+    // skip its first 'start_bytes' units
+    start_bytes = ((from_bytes != -1) ? from_bytes : 0);
+
+    // last included item is the 'end_item'-th one
+    end_item = vn->vn_nr_item - to - 1;
+    // do not count last 'end_bytes' units of 'end_item'-th item
+    end_bytes = (to_bytes != -1) ? to_bytes : 0;
+
+    /* go through all item beginning from the start_item-th item and ending by
+       the end_item-th item. Do not count first 'start_bytes' units of
+       'start_item'-th item and last 'end_bytes' of 'end_item'-th item */
+    
+    for (i = start_item; i <= end_item; i ++) {
+	struct virtual_item * vi = vn->vn_vi + i;
+	int skip_from_end = ((i == end_item) ? end_bytes : 0);
+
+	RFALSE( needed_nodes > 3, "vs-8105: too many nodes are needed");
+
+	/* get size of current item */
+	current_item_size = vi->vi_item_len;
+
+	/* do not take in calculation head part (from_bytes) of from-th item */
+	current_item_size -= op_part_size (vi, 0/*from start*/, start_bytes);
+
+	/* do not take in calculation tail part of last item */
+	current_item_size -= op_part_size (vi, 1/*from end*/, skip_from_end);
+
+	/* if item fits into current node entierly */
+	if (total_node_size + current_item_size <= max_node_size) {
+	    snum012[needed_nodes - 1] ++;
+	    total_node_size += current_item_size;
+	    start_bytes = 0;
+	    continue;
+	}
+
+	if (current_item_size > max_node_size) {
+	    /* virtual item length is longer, than max size of item in
+               a node. It is impossible for direct item */
+	    RFALSE( is_direct_le_ih (vi->vi_ih),
+		    "vs-8110: "
+		    "direct item length is %d. It can not be longer than %d",
+		    current_item_size, max_node_size);
+	    /* we will try to split it */
+	    flow = 1;
+	}
+
+	if (!flow) {
+	    /* as we do not split items, take new node and continue */
+	    needed_nodes ++; i --; total_node_size = 0;
+	    continue;
+	}
+
+	// calculate number of item units which fit into node being
+	// filled
+	{
+	    int free_space;
+
+	    free_space = max_node_size - total_node_size - IH_SIZE;
+	    units = op_check_left (vi, free_space, start_bytes, skip_from_end);
+	    if (units == -1) {
+		/* nothing fits into current node, take new node and continue */
+		needed_nodes ++, i--, total_node_size = 0;
+		continue;
+	    }
+	}
+
+	/* something fits into the current node */
+	//if (snum012[3] != -1 || needed_nodes != 1)
+	//  reiserfs_panic (tb->tb_sb, "vs-8115: get_num_ver: too many nodes required");
+	//snum012[needed_nodes - 1 + 3] = op_unit_num (vi) - start_bytes - units;
+	start_bytes += units;
+	snum012[needed_nodes - 1 + 3] = units;
+
+	if (needed_nodes > 2)
+	    reiserfs_warning (tb->tb_sb, "vs-8111: get_num_ver: split_item_position is out of boundary\n");
+	snum012[needed_nodes - 1] ++;
+	split_item_positions[needed_nodes - 1] = i;
+	needed_nodes ++;
+	/* continue from the same item with start_bytes != -1 */
+	start_item = i;
+	i --;
+	total_node_size = 0;
+    }
+
+    // sum012[4] (if it is not -1) contains number of units of which
+    // are to be in S1new, snum012[3] - to be in S0. They are supposed
+    // to be S1bytes and S2bytes correspondingly, so recalculate
+    if (snum012[4] > 0) {
+	int split_item_num;
+	int bytes_to_r, bytes_to_l;
+	int bytes_to_S1new;
+    
+	split_item_num = split_item_positions[1];
+	bytes_to_l = ((from == split_item_num && from_bytes != -1) ? from_bytes : 0);
+	bytes_to_r = ((end_item == split_item_num && end_bytes != -1) ? end_bytes : 0);
+	bytes_to_S1new = ((split_item_positions[0] == split_item_positions[1]) ? snum012[3] : 0);
+
+	// s2bytes
+	snum012[4] = op_unit_num (&vn->vn_vi[split_item_num]) - snum012[4] - bytes_to_r - bytes_to_l - bytes_to_S1new;
+
+	if (vn->vn_vi[split_item_num].vi_index != TYPE_DIRENTRY)
+	    reiserfs_warning (tb->tb_sb, "vs-8115: get_num_ver: not directory item\n");
+    }
+
+    /* now we know S2bytes, calculate S1bytes */
+    if (snum012[3] > 0) {
+	int split_item_num;
+	int bytes_to_r, bytes_to_l;
+	int bytes_to_S2new;
+    
+	split_item_num = split_item_positions[0];
+	bytes_to_l = ((from == split_item_num && from_bytes != -1) ? from_bytes : 0);
+	bytes_to_r = ((end_item == split_item_num && end_bytes != -1) ? end_bytes : 0);
+	bytes_to_S2new = ((split_item_positions[0] == split_item_positions[1] && snum012[4] != -1) ? snum012[4] : 0);
+
+	// s1bytes
+	snum012[3] = op_unit_num (&vn->vn_vi[split_item_num]) - snum012[3] - bytes_to_r - bytes_to_l - bytes_to_S2new;
+    }
+    
+    return needed_nodes;
+}
+
+
+#ifdef CONFIG_REISERFS_CHECK
+extern struct tree_balance * cur_tb;
+#endif
+
+
+/* Set parameters for balancing.
+ * Performs write of results of analysis of balancing into structure tb,
+ * where it will later be used by the functions that actually do the balancing. 
+ * Parameters:
+ *	tb	tree_balance structure;
+ *	h	current level of the node;
+ *	lnum	number of items from S[h] that must be shifted to L[h];
+ *	rnum	number of items from S[h] that must be shifted to R[h];
+ *	blk_num	number of blocks that S[h] will be splitted into;
+ *	s012	number of items that fall into splitted nodes.
+ *	lbytes	number of bytes which flow to the left neighbor from the item that is not
+ *		not shifted entirely
+ *	rbytes	number of bytes which flow to the right neighbor from the item that is not
+ *		not shifted entirely
+ *	s1bytes	number of bytes which flow to the first  new node when S[0] splits (this number is contained in s012 array)
+ */
+
+static void set_parameters (struct tree_balance * tb, int h, int lnum,
+			    int rnum, int blk_num, short * s012, int lb, int rb)
+{
+
+  tb->lnum[h] = lnum;
+  tb->rnum[h] = rnum;
+  tb->blknum[h] = blk_num;
+
+  if (h == 0)
+    {  /* only for leaf level */
+      if (s012 != NULL)
+	{
+	  tb->s0num = * s012 ++,
+	  tb->s1num = * s012 ++,
+	  tb->s2num = * s012 ++;
+	  tb->s1bytes = * s012 ++;
+	  tb->s2bytes = * s012;
+	}
+      tb->lbytes = lb;
+      tb->rbytes = rb;
+    }
+  PROC_INFO_ADD( tb -> tb_sb, lnum[ h ], lnum );
+  PROC_INFO_ADD( tb -> tb_sb, rnum[ h ], rnum );
+
+  PROC_INFO_ADD( tb -> tb_sb, lbytes[ h ], lb );
+  PROC_INFO_ADD( tb -> tb_sb, rbytes[ h ], rb );
+}
+
+
+
+/* check, does node disappear if we shift tb->lnum[0] items to left
+   neighbor and tb->rnum[0] to the right one. */
+static int is_leaf_removable (struct tree_balance * tb)
+{
+  struct virtual_node * vn = tb->tb_vn;
+  int to_left, to_right;
+  int size;
+  int remain_items;
+
+  /* number of items, that will be shifted to left (right) neighbor
+     entirely */
+  to_left = tb->lnum[0] - ((tb->lbytes != -1) ? 1 : 0);
+  to_right = tb->rnum[0] - ((tb->rbytes != -1) ? 1 : 0);
+  remain_items = vn->vn_nr_item;
+
+  /* how many items remain in S[0] after shiftings to neighbors */
+  remain_items -= (to_left + to_right);
+
+  if (remain_items < 1) {
+    /* all content of node can be shifted to neighbors */
+    set_parameters (tb, 0, to_left, vn->vn_nr_item - to_left, 0, NULL, -1, -1);    
+    return 1;
+  }
+  
+  if (remain_items > 1 || tb->lbytes == -1 || tb->rbytes == -1)
+    /* S[0] is not removable */
+    return 0;
+
+  /* check, whether we can divide 1 remaining item between neighbors */
+
+  /* get size of remaining item (in item units) */
+  size = op_unit_num (&(vn->vn_vi[to_left]));
+
+  if (tb->lbytes + tb->rbytes >= size) {
+    set_parameters (tb, 0, to_left + 1, to_right + 1, 0, NULL, tb->lbytes, -1);
+    return 1;
+  }
+
+  return 0;
+}
+
+
+/* check whether L, S, R can be joined in one node */
+static int are_leaves_removable (struct tree_balance * tb, int lfree, int rfree)
+{
+  struct virtual_node * vn = tb->tb_vn;
+  int ih_size;
+  struct buffer_head *S0;
+
+  S0 = PATH_H_PBUFFER (tb->tb_path, 0);
+
+  ih_size = 0;
+  if (vn->vn_nr_item) {
+    if (vn->vn_vi[0].vi_type & VI_TYPE_LEFT_MERGEABLE)
+      ih_size += IH_SIZE;
+    
+	if (vn->vn_vi[vn->vn_nr_item-1].vi_type & VI_TYPE_RIGHT_MERGEABLE)
+	    ih_size += IH_SIZE;
+    } else {
+	/* there was only one item and it will be deleted */
+	struct item_head * ih;
+    
+    RFALSE( B_NR_ITEMS (S0) != 1,
+	    "vs-8125: item number must be 1: it is %d", B_NR_ITEMS(S0));
+
+    ih = B_N_PITEM_HEAD (S0, 0);
+    if (tb->CFR[0] && !comp_short_le_keys (&(ih->ih_key), B_N_PDELIM_KEY (tb->CFR[0], tb->rkey[0])))
+	if (is_direntry_le_ih (ih)) {
+	    /* Directory must be in correct state here: that is
+	       somewhere at the left side should exist first directory
+	       item. But the item being deleted can not be that first
+	       one because its right neighbor is item of the same
+	       directory. (But first item always gets deleted in last
+	       turn). So, neighbors of deleted item can be merged, so
+	       we can save ih_size */
+	    ih_size = IH_SIZE;
+	    
+	    /* we might check that left neighbor exists and is of the
+	       same directory */
+	    RFALSE(le_ih_k_offset (ih) == DOT_OFFSET,
+		"vs-8130: first directory item can not be removed until directory is not empty");
+      }
+    
+  }
+
+  if (MAX_CHILD_SIZE (S0) + vn->vn_size <= rfree + lfree + ih_size) {
+    set_parameters (tb, 0, -1, -1, -1, NULL, -1, -1);
+    PROC_INFO_INC( tb -> tb_sb, leaves_removable );
+    return 1;  
+  }
+  return 0;
+  
+}
+
+
+
+/* when we do not split item, lnum and rnum are numbers of entire items */
+#define SET_PAR_SHIFT_LEFT \
+if (h)\
+{\
+   int to_l;\
+   \
+   to_l = (MAX_NR_KEY(Sh)+1 - lpar + vn->vn_nr_item + 1) / 2 -\
+	      (MAX_NR_KEY(Sh) + 1 - lpar);\
+	      \
+	      set_parameters (tb, h, to_l, 0, lnver, NULL, -1, -1);\
+}\
+else \
+{\
+   if (lset==LEFT_SHIFT_FLOW)\
+     set_parameters (tb, h, lpar, 0, lnver, snum012+lset,\
+		     tb->lbytes, -1);\
+   else\
+     set_parameters (tb, h, lpar - (tb->lbytes!=-1), 0, lnver, snum012+lset,\
+		     -1, -1);\
+}
+
+
+#define SET_PAR_SHIFT_RIGHT \
+if (h)\
+{\
+   int to_r;\
+   \
+   to_r = (MAX_NR_KEY(Sh)+1 - rpar + vn->vn_nr_item + 1) / 2 - (MAX_NR_KEY(Sh) + 1 - rpar);\
+   \
+   set_parameters (tb, h, 0, to_r, rnver, NULL, -1, -1);\
+}\
+else \
+{\
+   if (rset==RIGHT_SHIFT_FLOW)\
+     set_parameters (tb, h, 0, rpar, rnver, snum012+rset,\
+		  -1, tb->rbytes);\
+   else\
+     set_parameters (tb, h, 0, rpar - (tb->rbytes!=-1), rnver, snum012+rset,\
+		  -1, -1);\
+}
+
+
+void free_buffers_in_tb (
+		       struct tree_balance * p_s_tb
+		       ) {
+  int n_counter;
+
+  decrement_counters_in_path(p_s_tb->tb_path);
+  
+  for ( n_counter = 0; n_counter < MAX_HEIGHT; n_counter++ ) {
+    decrement_bcount(p_s_tb->L[n_counter]);
+    p_s_tb->L[n_counter] = NULL;
+    decrement_bcount(p_s_tb->R[n_counter]);
+    p_s_tb->R[n_counter] = NULL;
+    decrement_bcount(p_s_tb->FL[n_counter]);
+    p_s_tb->FL[n_counter] = NULL;
+    decrement_bcount(p_s_tb->FR[n_counter]);
+    p_s_tb->FR[n_counter] = NULL;
+    decrement_bcount(p_s_tb->CFL[n_counter]);
+    p_s_tb->CFL[n_counter] = NULL;
+    decrement_bcount(p_s_tb->CFR[n_counter]);
+    p_s_tb->CFR[n_counter] = NULL;
+  }
+}
+
+
+/* Get new buffers for storing new nodes that are created while balancing.
+ * Returns:	SCHEDULE_OCCURRED - schedule occurred while the function worked;
+ *	        CARRY_ON - schedule didn't occur while the function worked;
+ *	        NO_DISK_SPACE - no disk space.
+ */
+/* The function is NOT SCHEDULE-SAFE! */
+static int  get_empty_nodes(
+              struct tree_balance * p_s_tb,
+              int n_h
+            ) {
+  struct buffer_head  * p_s_new_bh,
+    		      *	p_s_Sh = PATH_H_PBUFFER (p_s_tb->tb_path, n_h);
+  unsigned long	      *	p_n_blocknr,
+    			a_n_blocknrs[MAX_AMOUNT_NEEDED] = {0, };
+  int       		n_counter,
+   			n_number_of_freeblk,
+                	n_amount_needed,/* number of needed empty blocks */
+			n_retval = CARRY_ON;
+  struct super_block *	p_s_sb = p_s_tb->tb_sb;
+
+
+  /* number_of_freeblk is the number of empty blocks which have been
+     acquired for use by the balancing algorithm minus the number of
+     empty blocks used in the previous levels of the analysis,
+     number_of_freeblk = tb->cur_blknum can be non-zero if a schedule occurs
+     after empty blocks are acquired, and the balancing analysis is
+     then restarted, amount_needed is the number needed by this level
+     (n_h) of the balancing analysis.
+			    
+     Note that for systems with many processes writing, it would be
+     more layout optimal to calculate the total number needed by all
+     levels and then to run reiserfs_new_blocks to get all of them at once.  */
+
+  /* Initiate number_of_freeblk to the amount acquired prior to the restart of
+     the analysis or 0 if not restarted, then subtract the amount needed
+     by all of the levels of the tree below n_h. */
+  /* blknum includes S[n_h], so we subtract 1 in this calculation */
+  for ( n_counter = 0, n_number_of_freeblk = p_s_tb->cur_blknum; n_counter < n_h; n_counter++ )
+    n_number_of_freeblk -= ( p_s_tb->blknum[n_counter] ) ? (p_s_tb->blknum[n_counter] - 1) : 0;
+
+  /* Allocate missing empty blocks. */
+  /* if p_s_Sh == 0  then we are getting a new root */
+  n_amount_needed = ( p_s_Sh ) ? (p_s_tb->blknum[n_h] - 1) : 1;
+  /*  Amount_needed = the amount that we need more than the amount that we have. */
+  if ( n_amount_needed > n_number_of_freeblk )
+    n_amount_needed -= n_number_of_freeblk;
+  else /* If we have enough already then there is nothing to do. */
+    return CARRY_ON;
+
+  if ( reiserfs_new_form_blocknrs (p_s_tb, a_n_blocknrs,
+                                   n_amount_needed) == NO_DISK_SPACE )
+    return NO_DISK_SPACE;
+
+  /* for each blocknumber we just got, get a buffer and stick it on FEB */
+  for ( p_n_blocknr = a_n_blocknrs, n_counter = 0; n_counter < n_amount_needed;
+	p_n_blocknr++, n_counter++ ) { 
+
+    RFALSE( ! *p_n_blocknr,
+	    "PAP-8135: reiserfs_new_blocknrs failed when got new blocks");
+
+    p_s_new_bh = getblk(p_s_sb->s_dev, *p_n_blocknr, p_s_sb->s_blocksize);
+    if (atomic_read (&(p_s_new_bh->b_count)) > 1) {
+/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
+/*
+      reiserfs_warning (p_s_sb, "waiting for buffer %b, iput inode pid = %d, this pid %d, mode %c, %h\n",
+			p_s_new_bh, put_inode_pid, current->pid, p_s_tb->tb_vn->vn_mode, p_s_tb->tb_vn->vn_ins_ih);
+      print_tb (0, 0, 0, p_s_tb, "tb");
+*/
+/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
+      if (atomic_read(&(p_s_new_bh->b_count)) > 2 || 
+          !(buffer_journaled(p_s_new_bh) || buffer_journal_dirty(p_s_new_bh))) {
+	n_retval = REPEAT_SEARCH ;
+	free_buffers_in_tb (p_s_tb);
+	wait_buffer_until_released (p_s_new_bh);
+      }
+    }
+    RFALSE( (atomic_read (&(p_s_new_bh->b_count)) != 1 || 
+	     buffer_dirty (p_s_new_bh)) && 
+	    (atomic_read(&(p_s_new_bh->b_count)) > 2 || 
+	     !(buffer_journaled(p_s_new_bh) || 
+	       buffer_journal_dirty(p_s_new_bh))),
+	    "PAP-8140: not free or dirty buffer %b for the new block", 
+	    p_s_new_bh);
+    
+    /* Put empty buffers into the array. */
+    if (p_s_tb->FEB[p_s_tb->cur_blknum])
+      BUG();
+
+    mark_buffer_journal_new(p_s_new_bh) ;
+    p_s_tb->FEB[p_s_tb->cur_blknum++] = p_s_new_bh;
+  }
+
+  if ( n_retval == CARRY_ON && FILESYSTEM_CHANGED_TB (p_s_tb) )
+    n_retval = REPEAT_SEARCH ;
+
+  return n_retval;
+}
+
+
+/* Get free space of the left neighbor, which is stored in the parent
+ * node of the left neighbor.  */
+static int get_lfree (struct tree_balance * tb, int h)
+{
+    struct buffer_head * l, * f;
+    int order;
+
+    if ((f = PATH_H_PPARENT (tb->tb_path, h)) == 0 || (l = tb->FL[h]) == 0)
+	return 0;
+
+    if (f == l)
+	order = PATH_H_B_ITEM_ORDER (tb->tb_path, h) - 1;
+    else {
+	order = B_NR_ITEMS (l);
+	f = l;
+    }
+
+    return (MAX_CHILD_SIZE(f) - dc_size(B_N_CHILD(f,order)));
+}
+
+
+/* Get free space of the right neighbor,
+ * which is stored in the parent node of the right neighbor.
+ */
+static int get_rfree (struct tree_balance * tb, int h)
+{
+  struct buffer_head * r, * f;
+  int order;
+
+  if ((f = PATH_H_PPARENT (tb->tb_path, h)) == 0 || (r = tb->FR[h]) == 0)
+    return 0;
+
+  if (f == r)
+      order = PATH_H_B_ITEM_ORDER (tb->tb_path, h) + 1;
+  else {
+      order = 0;
+      f = r;
+  }
+
+  return (MAX_CHILD_SIZE(f) - dc_size( B_N_CHILD(f,order)));
+
+}
+
+
+/* Check whether left neighbor is in memory. */
+static int  is_left_neighbor_in_cache(
+              struct tree_balance * p_s_tb,
+              int                   n_h
+            ) {
+  struct buffer_head  * p_s_father, * left;
+  struct super_block  * p_s_sb = p_s_tb->tb_sb;
+  unsigned long         n_left_neighbor_blocknr;
+  int                   n_left_neighbor_position;
+
+  if ( ! p_s_tb->FL[n_h] ) /* Father of the left neighbor does not exist. */
+    return 0;
+
+  /* Calculate father of the node to be balanced. */
+  p_s_father = PATH_H_PBUFFER(p_s_tb->tb_path, n_h + 1);
+
+  RFALSE( ! p_s_father || 
+	  ! B_IS_IN_TREE (p_s_father) || 
+	  ! B_IS_IN_TREE (p_s_tb->FL[n_h]) ||
+	  ! buffer_uptodate (p_s_father) || 
+	  ! buffer_uptodate (p_s_tb->FL[n_h]),
+	  "vs-8165: F[h] (%b) or FL[h] (%b) is invalid", 
+	  p_s_father, p_s_tb->FL[n_h]);
+
+
+  /* Get position of the pointer to the left neighbor into the left father. */
+  n_left_neighbor_position = ( p_s_father == p_s_tb->FL[n_h] ) ?
+                      p_s_tb->lkey[n_h] : B_NR_ITEMS (p_s_tb->FL[n_h]);
+  /* Get left neighbor block number. */
+  n_left_neighbor_blocknr = B_N_CHILD_NUM(p_s_tb->FL[n_h], n_left_neighbor_position);
+  /* Look for the left neighbor in the cache. */
+  if ( (left = sb_get_hash_table(p_s_sb, n_left_neighbor_blocknr)) ) {
+
+    RFALSE( buffer_uptodate (left) && ! B_IS_IN_TREE(left),
+	    "vs-8170: left neighbor (%b %z) is not in the tree", left, left);
+    put_bh(left) ;
+    return 1;
+  }
+
+  return 0;
+}
+
+
+#define LEFT_PARENTS  'l'
+#define RIGHT_PARENTS 'r'
+
+
+static void decrement_key (struct cpu_key * p_s_key)
+{
+    // call item specific function for this key
+    item_ops[cpu_key_k_type (p_s_key)]->decrement_key (p_s_key);
+}
+
+
+
+
+/* Calculate far left/right parent of the left/right neighbor of the current node, that
+ * is calculate the left/right (FL[h]/FR[h]) neighbor of the parent F[h].
+ * Calculate left/right common parent of the current node and L[h]/R[h].
+ * Calculate left/right delimiting key position.
+ * Returns:	PATH_INCORRECT   - path in the tree is not correct;
+ 		SCHEDULE_OCCURRED - schedule occurred while the function worked;
+ *	        CARRY_ON         - schedule didn't occur while the function worked;
+ */
+static int  get_far_parent (struct tree_balance *   p_s_tb,
+			    int                     n_h,
+			    struct buffer_head  **  pp_s_father,
+			    struct buffer_head  **  pp_s_com_father,
+			    char                    c_lr_par) 
+{
+    struct buffer_head  * p_s_parent;
+    INITIALIZE_PATH (s_path_to_neighbor_father);
+    struct path * p_s_path = p_s_tb->tb_path;
+    struct cpu_key	s_lr_father_key;
+    int                   n_counter,
+	n_position = INT_MAX,
+	n_first_last_position = 0,
+	n_path_offset = PATH_H_PATH_OFFSET(p_s_path, n_h);
+
+    /* Starting from F[n_h] go upwards in the tree, and look for the common
+      ancestor of F[n_h], and its neighbor l/r, that should be obtained. */
+
+    n_counter = n_path_offset;
+
+    RFALSE( n_counter < FIRST_PATH_ELEMENT_OFFSET,
+	    "PAP-8180: invalid path length");
+
+  
+    for ( ; n_counter > FIRST_PATH_ELEMENT_OFFSET; n_counter--  )  {
+	/* Check whether parent of the current buffer in the path is really parent in the tree. */
+	if ( ! B_IS_IN_TREE(p_s_parent = PATH_OFFSET_PBUFFER(p_s_path, n_counter - 1)) )
+	    return REPEAT_SEARCH;
+	/* Check whether position in the parent is correct. */
+	if ( (n_position = PATH_OFFSET_POSITION(p_s_path, n_counter - 1)) > B_NR_ITEMS(p_s_parent) )
+	    return REPEAT_SEARCH;
+	/* Check whether parent at the path really points to the child. */
+	if ( B_N_CHILD_NUM(p_s_parent, n_position) !=
+	     PATH_OFFSET_PBUFFER(p_s_path, n_counter)->b_blocknr )
+	    return REPEAT_SEARCH;
+	/* Return delimiting key if position in the parent is not equal to first/last one. */
+	if ( c_lr_par == RIGHT_PARENTS )
+	    n_first_last_position = B_NR_ITEMS (p_s_parent);
+	if ( n_position != n_first_last_position ) {
+	    *pp_s_com_father = p_s_parent;
+	    get_bh(*pp_s_com_father) ;
+	    /*(*pp_s_com_father = p_s_parent)->b_count++;*/
+	    break;
+	}
+    }
+
+    /* if we are in the root of the tree, then there is no common father */
+    if ( n_counter == FIRST_PATH_ELEMENT_OFFSET ) {
+	/* Check whether first buffer in the path is the root of the tree. */
+	if ( PATH_OFFSET_PBUFFER(p_s_tb->tb_path, FIRST_PATH_ELEMENT_OFFSET)->b_blocknr ==
+	     SB_ROOT_BLOCK (p_s_tb->tb_sb) ) {
+	    *pp_s_father = *pp_s_com_father = NULL;
+	    return CARRY_ON;
+	}
+	return REPEAT_SEARCH;
+    }
+
+    RFALSE( B_LEVEL (*pp_s_com_father) <= DISK_LEAF_NODE_LEVEL,
+	    "PAP-8185: (%b %z) level too small", 
+	    *pp_s_com_father, *pp_s_com_father);
+
+    /* Check whether the common parent is locked. */
+
+    if ( buffer_locked (*pp_s_com_father) ) {
+	__wait_on_buffer(*pp_s_com_father);
+	if ( FILESYSTEM_CHANGED_TB (p_s_tb) ) {
+	    decrement_bcount(*pp_s_com_father);
+	    return REPEAT_SEARCH;
+	}
+    }
+
+    /* So, we got common parent of the current node and its left/right neighbor.
+     Now we are geting the parent of the left/right neighbor. */
+
+    /* Form key to get parent of the left/right neighbor. */
+    le_key2cpu_key (&s_lr_father_key, B_N_PDELIM_KEY(*pp_s_com_father, ( c_lr_par == LEFT_PARENTS ) ?
+						     (p_s_tb->lkey[n_h - 1] = n_position - 1) : (p_s_tb->rkey[n_h - 1] = n_position)));
+
+
+    if ( c_lr_par == LEFT_PARENTS )
+	decrement_key(&s_lr_father_key);
+
+    if (search_by_key(p_s_tb->tb_sb, &s_lr_father_key, &s_path_to_neighbor_father, n_h + 1) == IO_ERROR)
+	// path is released
+	return IO_ERROR;
+
+    if ( FILESYSTEM_CHANGED_TB (p_s_tb) ) {
+	decrement_counters_in_path(&s_path_to_neighbor_father);
+	decrement_bcount(*pp_s_com_father);
+	return REPEAT_SEARCH;
+    }
+
+    *pp_s_father = PATH_PLAST_BUFFER(&s_path_to_neighbor_father);
+
+    RFALSE( B_LEVEL (*pp_s_father) != n_h + 1,
+	    "PAP-8190: (%b %z) level too small", *pp_s_father, *pp_s_father);
+    RFALSE( s_path_to_neighbor_father.path_length < FIRST_PATH_ELEMENT_OFFSET,
+	    "PAP-8192: path length is too small");
+
+    s_path_to_neighbor_father.path_length--;
+    decrement_counters_in_path(&s_path_to_neighbor_father);
+    return CARRY_ON;
+}
+
+
+/* Get parents of neighbors of node in the path(S[n_path_offset]) and common parents of
+ * S[n_path_offset] and L[n_path_offset]/R[n_path_offset]: F[n_path_offset], FL[n_path_offset],
+ * FR[n_path_offset], CFL[n_path_offset], CFR[n_path_offset].
+ * Calculate numbers of left and right delimiting keys position: lkey[n_path_offset], rkey[n_path_offset].
+ * Returns:	SCHEDULE_OCCURRED - schedule occurred while the function worked;
+ *	        CARRY_ON - schedule didn't occur while the function worked;
+ */
+static int  get_parents (struct tree_balance * p_s_tb, int n_h)
+{
+    struct path         * p_s_path = p_s_tb->tb_path;
+    int                   n_position,
+	n_ret_value,
+	n_path_offset = PATH_H_PATH_OFFSET(p_s_tb->tb_path, n_h);
+    struct buffer_head  * p_s_curf,
+	* p_s_curcf;
+
+    /* Current node is the root of the tree or will be root of the tree */
+    if ( n_path_offset <= FIRST_PATH_ELEMENT_OFFSET ) {
+	/* The root can not have parents.
+	   Release nodes which previously were obtained as parents of the current node neighbors. */
+	decrement_bcount(p_s_tb->FL[n_h]);
+	decrement_bcount(p_s_tb->CFL[n_h]);
+	decrement_bcount(p_s_tb->FR[n_h]);
+	decrement_bcount(p_s_tb->CFR[n_h]);
+	p_s_tb->FL[n_h] = p_s_tb->CFL[n_h] = p_s_tb->FR[n_h] = p_s_tb->CFR[n_h] = NULL;
+	return CARRY_ON;
+    }
+  
+    /* Get parent FL[n_path_offset] of L[n_path_offset]. */
+    if ( (n_position = PATH_OFFSET_POSITION(p_s_path, n_path_offset - 1)) )  {
+	/* Current node is not the first child of its parent. */
+	/*(p_s_curf = p_s_curcf = PATH_OFFSET_PBUFFER(p_s_path, n_path_offset - 1))->b_count += 2;*/
+	p_s_curf = p_s_curcf = PATH_OFFSET_PBUFFER(p_s_path, n_path_offset - 1);
+	get_bh(p_s_curf) ;
+	get_bh(p_s_curf) ;
+	p_s_tb->lkey[n_h] = n_position - 1;
+    }
+    else  {
+	/* Calculate current parent of L[n_path_offset], which is the left neighbor of the current node.
+	   Calculate current common parent of L[n_path_offset] and the current node. Note that
+	   CFL[n_path_offset] not equal FL[n_path_offset] and CFL[n_path_offset] not equal F[n_path_offset].
+	   Calculate lkey[n_path_offset]. */
+	if ( (n_ret_value = get_far_parent(p_s_tb, n_h + 1, &p_s_curf,
+					   &p_s_curcf, LEFT_PARENTS)) != CARRY_ON )
+	    return n_ret_value;
+    }
+
+    decrement_bcount(p_s_tb->FL[n_h]);
+    p_s_tb->FL[n_h] = p_s_curf; /* New initialization of FL[n_h]. */
+    decrement_bcount(p_s_tb->CFL[n_h]);
+    p_s_tb->CFL[n_h] = p_s_curcf; /* New initialization of CFL[n_h]. */
+
+    RFALSE( (p_s_curf && !B_IS_IN_TREE (p_s_curf)) || 
+	    (p_s_curcf && !B_IS_IN_TREE (p_s_curcf)),
+	    "PAP-8195: FL (%b) or CFL (%b) is invalid", p_s_curf, p_s_curcf);
+
+/* Get parent FR[n_h] of R[n_h]. */
+
+/* Current node is the last child of F[n_h]. FR[n_h] != F[n_h]. */
+    if ( n_position == B_NR_ITEMS (PATH_H_PBUFFER(p_s_path, n_h + 1)) ) {
+/* Calculate current parent of R[n_h], which is the right neighbor of F[n_h].
+   Calculate current common parent of R[n_h] and current node. Note that CFR[n_h]
+   not equal FR[n_path_offset] and CFR[n_h] not equal F[n_h]. */
+	if ( (n_ret_value = get_far_parent(p_s_tb, n_h + 1, &p_s_curf,  &p_s_curcf, RIGHT_PARENTS)) != CARRY_ON )
+	    return n_ret_value;
+    }
+    else {
+/* Current node is not the last child of its parent F[n_h]. */
+	/*(p_s_curf = p_s_curcf = PATH_OFFSET_PBUFFER(p_s_path, n_path_offset - 1))->b_count += 2;*/
+	p_s_curf = p_s_curcf = PATH_OFFSET_PBUFFER(p_s_path, n_path_offset - 1);
+	get_bh(p_s_curf) ;
+	get_bh(p_s_curf) ;
+	p_s_tb->rkey[n_h] = n_position;
+    }	
+
+    decrement_bcount(p_s_tb->FR[n_h]);
+    p_s_tb->FR[n_h] = p_s_curf; /* New initialization of FR[n_path_offset]. */
+    
+    decrement_bcount(p_s_tb->CFR[n_h]);
+    p_s_tb->CFR[n_h] = p_s_curcf; /* New initialization of CFR[n_path_offset]. */
+
+    RFALSE( (p_s_curf && !B_IS_IN_TREE (p_s_curf)) ||
+            (p_s_curcf && !B_IS_IN_TREE (p_s_curcf)),
+	    "PAP-8205: FR (%b) or CFR (%b) is invalid", p_s_curf, p_s_curcf);
+
+    return CARRY_ON;
+}
+
+
+/* it is possible to remove node as result of shiftings to
+   neighbors even when we insert or paste item. */
+static inline int can_node_be_removed (int mode, int lfree, int sfree, int rfree, struct tree_balance * tb, int h)
+{
+    struct buffer_head * Sh = PATH_H_PBUFFER (tb->tb_path, h);
+    int levbytes = tb->insert_size[h];
+    struct item_head * ih;
+    struct key * r_key = NULL;
+
+    ih = B_N_PITEM_HEAD (Sh, 0);
+    if ( tb->CFR[h] )
+	r_key = B_N_PDELIM_KEY(tb->CFR[h],tb->rkey[h]);
+  
+    if (
+	lfree + rfree + sfree < MAX_CHILD_SIZE(Sh) + levbytes
+	/* shifting may merge items which might save space */
+	- (( ! h && op_is_left_mergeable (&(ih->ih_key), Sh->b_size) ) ? IH_SIZE : 0)
+	- (( ! h && r_key && op_is_left_mergeable (r_key, Sh->b_size) ) ? IH_SIZE : 0)
+	+ (( h ) ? KEY_SIZE : 0))
+    {
+	/* node can not be removed */
+	if (sfree >= levbytes ) { /* new item fits into node S[h] without any shifting */
+	    if ( ! h )
+		tb->s0num = B_NR_ITEMS(Sh) + ((mode == M_INSERT ) ? 1 : 0);
+	    set_parameters (tb, h, 0, 0, 1, NULL, -1, -1);
+	    return NO_BALANCING_NEEDED;
+	}
+    }
+    PROC_INFO_INC( tb -> tb_sb, can_node_be_removed[ h ] );
+    return !NO_BALANCING_NEEDED;
+}
+
+
+
+/* Check whether current node S[h] is balanced when increasing its size by
+ * Inserting or Pasting.
+ * Calculate parameters for balancing for current level h.
+ * Parameters:
+ *	tb	tree_balance structure;
+ *	h	current level of the node;
+ *	inum	item number in S[h];
+ *	mode	i - insert, p - paste;
+ * Returns:	1 - schedule occurred; 
+ *	        0 - balancing for higher levels needed;
+ *	       -1 - no balancing for higher levels needed;
+ *	       -2 - no disk space.
+ */
+/* ip means Inserting or Pasting */
+static int ip_check_balance (struct tree_balance * tb, int h)
+{
+    struct virtual_node * vn = tb->tb_vn;
+    int levbytes,  /* Number of bytes that must be inserted into (value
+		      is negative if bytes are deleted) buffer which
+		      contains node being balanced.  The mnemonic is
+		      that the attempted change in node space used level
+		      is levbytes bytes. */
+	n_ret_value;
+
+    int lfree, sfree, rfree /* free space in L, S and R */;
+
+    /* nver is short for number of vertixes, and lnver is the number if
+       we shift to the left, rnver is the number if we shift to the
+       right, and lrnver is the number if we shift in both directions.
+       The goal is to minimize first the number of vertixes, and second,
+       the number of vertixes whose contents are changed by shifting,
+       and third the number of uncached vertixes whose contents are
+       changed by shifting and must be read from disk.  */
+    int nver, lnver, rnver, lrnver;
+
+    /* used at leaf level only, S0 = S[0] is the node being balanced,
+       sInum [ I = 0,1,2 ] is the number of items that will
+       remain in node SI after balancing.  S1 and S2 are new
+       nodes that might be created. */
+  
+    /* we perform 8 calls to get_num_ver().  For each call we calculate five parameters.
+       where 4th parameter is s1bytes and 5th - s2bytes
+    */
+    short snum012[40] = {0,};	/* s0num, s1num, s2num for 8 cases 
+				   0,1 - do not shift and do not shift but bottle
+				   2 - shift only whole item to left
+				   3 - shift to left and bottle as much as possible
+				   4,5 - shift to right	(whole items and as much as possible
+				   6,7 - shift to both directions (whole items and as much as possible)
+				*/
+
+    /* Sh is the node whose balance is currently being checked */
+    struct buffer_head * Sh;
+  
+    Sh = PATH_H_PBUFFER (tb->tb_path, h);
+    levbytes = tb->insert_size[h];
+  
+    /* Calculate balance parameters for creating new root. */
+    if ( ! Sh )  {
+	if ( ! h )
+	    reiserfs_panic (tb->tb_sb, "vs-8210: ip_check_balance: S[0] can not be 0");
+	switch ( n_ret_value = get_empty_nodes (tb, h) )  {
+	case CARRY_ON:
+	    set_parameters (tb, h, 0, 0, 1, NULL, -1, -1);
+	    return NO_BALANCING_NEEDED; /* no balancing for higher levels needed */
+
+	case NO_DISK_SPACE:
+	case REPEAT_SEARCH:
+	    return n_ret_value;
+	default:   
+	    reiserfs_panic(tb->tb_sb, "vs-8215: ip_check_balance: incorrect return value of get_empty_nodes");
+	}
+    }
+  
+    if ( (n_ret_value = get_parents (tb, h)) != CARRY_ON ) /* get parents of S[h] neighbors. */
+	return n_ret_value;
+  
+    sfree = B_FREE_SPACE (Sh);
+
+    /* get free space of neighbors */
+    rfree = get_rfree (tb, h);
+    lfree = get_lfree (tb, h);
+
+    if (can_node_be_removed (vn->vn_mode, lfree, sfree, rfree, tb, h) == NO_BALANCING_NEEDED)
+	/* and new item fits into node S[h] without any shifting */
+	return NO_BALANCING_NEEDED;
+     
+    create_virtual_node (tb, h);
+
+    /*	
+	determine maximal number of items we can shift to the left neighbor (in tb structure)
+	and the maximal number of bytes that can flow to the left neighbor
+	from the left most liquid item that cannot be shifted from S[0] entirely (returned value)
+    */
+    check_left (tb, h, lfree);
+
+    /*
+      determine maximal number of items we can shift to the right neighbor (in tb structure)
+      and the maximal number of bytes that can flow to the right neighbor
+      from the right most liquid item that cannot be shifted from S[0] entirely (returned value)
+    */
+    check_right (tb, h, rfree);
+
+
+    /* all contents of internal node S[h] can be moved into its
+       neighbors, S[h] will be removed after balancing */
+    if (h && (tb->rnum[h] + tb->lnum[h] >= vn->vn_nr_item + 1)) {
+	int to_r; 
+       
+	/* Since we are working on internal nodes, and our internal
+	   nodes have fixed size entries, then we can balance by the
+	   number of items rather than the space they consume.  In this
+	   routine we set the left node equal to the right node,
+	   allowing a difference of less than or equal to 1 child
+	   pointer. */
+	to_r = ((MAX_NR_KEY(Sh)<<1)+2-tb->lnum[h]-tb->rnum[h]+vn->vn_nr_item+1)/2 - 
+	    (MAX_NR_KEY(Sh) + 1 - tb->rnum[h]);
+	set_parameters (tb, h, vn->vn_nr_item + 1 - to_r, to_r, 0, NULL, -1, -1);
+	return CARRY_ON;
+    }
+
+    /* this checks balance condition, that any two neighboring nodes can not fit in one node */
+    RFALSE( h && 
+	    ( tb->lnum[h] >= vn->vn_nr_item + 1 || 
+	      tb->rnum[h] >= vn->vn_nr_item + 1),
+	    "vs-8220: tree is not balanced on internal level");
+    RFALSE( ! h && ((tb->lnum[h] >= vn->vn_nr_item && (tb->lbytes == -1)) ||
+		    (tb->rnum[h] >= vn->vn_nr_item && (tb->rbytes == -1)) ),
+	    "vs-8225: tree is not balanced on leaf level");
+
+    /* all contents of S[0] can be moved into its neighbors
+       S[0] will be removed after balancing. */
+    if (!h && is_leaf_removable (tb))
+	return CARRY_ON;
+
+
+    /* why do we perform this check here rather than earlier??
+       Answer: we can win 1 node in some cases above. Moreover we
+       checked it above, when we checked, that S[0] is not removable
+       in principle */
+    if (sfree >= levbytes) { /* new item fits into node S[h] without any shifting */
+	if ( ! h )
+	    tb->s0num = vn->vn_nr_item;
+	set_parameters (tb, h, 0, 0, 1, NULL, -1, -1);
+	return NO_BALANCING_NEEDED;
+    }
+
+
+    {
+	int lpar, rpar, nset, lset, rset, lrset;
+	/* 
+	 * regular overflowing of the node
+	 */
+
+	/* get_num_ver works in 2 modes (FLOW & NO_FLOW) 
+	   lpar, rpar - number of items we can shift to left/right neighbor (including splitting item)
+	   nset, lset, rset, lrset - shows, whether flowing items give better packing 
+	*/
+#define FLOW 1
+#define NO_FLOW 0	/* do not any splitting */
+
+	/* we choose one the following */
+#define NOTHING_SHIFT_NO_FLOW	0
+#define NOTHING_SHIFT_FLOW	5
+#define LEFT_SHIFT_NO_FLOW	10
+#define LEFT_SHIFT_FLOW		15
+#define RIGHT_SHIFT_NO_FLOW	20
+#define RIGHT_SHIFT_FLOW	25
+#define LR_SHIFT_NO_FLOW	30
+#define LR_SHIFT_FLOW		35
+
+
+	lpar = tb->lnum[h];
+	rpar = tb->rnum[h];
+
+
+	/* calculate number of blocks S[h] must be split into when
+	   nothing is shifted to the neighbors,
+	   as well as number of items in each part of the split node (s012 numbers),
+	   and number of bytes (s1bytes) of the shared drop which flow to S1 if any */
+	nset = NOTHING_SHIFT_NO_FLOW;
+	nver = get_num_ver (vn->vn_mode, tb, h,
+			    0, -1, h?vn->vn_nr_item:0, -1, 
+			    snum012, NO_FLOW);
+
+	if (!h)
+	{
+	    int nver1;
+
+	    /* note, that in this case we try to bottle between S[0] and S1 (S1 - the first new node) */
+	    nver1 = get_num_ver (vn->vn_mode, tb, h, 
+				 0, -1, 0, -1, 
+				 snum012 + NOTHING_SHIFT_FLOW, FLOW);
+	    if (nver > nver1)
+		nset = NOTHING_SHIFT_FLOW, nver = nver1;
+	}
+       
+ 
+	/* calculate number of blocks S[h] must be split into when
+	   l_shift_num first items and l_shift_bytes of the right most
+	   liquid item to be shifted are shifted to the left neighbor,
+	   as well as number of items in each part of the splitted node (s012 numbers),
+	   and number of bytes (s1bytes) of the shared drop which flow to S1 if any
+	*/
+	lset = LEFT_SHIFT_NO_FLOW;
+	lnver = get_num_ver (vn->vn_mode, tb, h, 
+			     lpar - (( h || tb->lbytes == -1 ) ? 0 : 1), -1, h ? vn->vn_nr_item:0, -1,
+			     snum012 + LEFT_SHIFT_NO_FLOW, NO_FLOW);
+	if (!h)
+	{
+	    int lnver1;
+
+	    lnver1 = get_num_ver (vn->vn_mode, tb, h, 
+				  lpar - ((tb->lbytes != -1) ? 1 : 0), tb->lbytes, 0, -1,
+				  snum012 + LEFT_SHIFT_FLOW, FLOW);
+	    if (lnver > lnver1)
+		lset = LEFT_SHIFT_FLOW, lnver = lnver1;
+	}
+
+
+	/* calculate number of blocks S[h] must be split into when
+	   r_shift_num first items and r_shift_bytes of the left most
+	   liquid item to be shifted are shifted to the right neighbor,
+	   as well as number of items in each part of the splitted node (s012 numbers),
+	   and number of bytes (s1bytes) of the shared drop which flow to S1 if any
+	*/
+	rset = RIGHT_SHIFT_NO_FLOW;
+	rnver = get_num_ver (vn->vn_mode, tb, h, 
+			     0, -1, h ? (vn->vn_nr_item-rpar) : (rpar - (( tb->rbytes != -1 ) ? 1 : 0)), -1, 
+			     snum012 + RIGHT_SHIFT_NO_FLOW, NO_FLOW);
+	if (!h)
+	{
+	    int rnver1;
+
+	    rnver1 = get_num_ver (vn->vn_mode, tb, h, 
+				  0, -1, (rpar - ((tb->rbytes != -1) ? 1 : 0)), tb->rbytes, 
+				  snum012 + RIGHT_SHIFT_FLOW, FLOW);
+
+	    if (rnver > rnver1)
+		rset = RIGHT_SHIFT_FLOW, rnver = rnver1;
+	}
+
+
+	/* calculate number of blocks S[h] must be split into when
+	   items are shifted in both directions,
+	   as well as number of items in each part of the splitted node (s012 numbers),
+	   and number of bytes (s1bytes) of the shared drop which flow to S1 if any
+	*/
+	lrset = LR_SHIFT_NO_FLOW;
+	lrnver = get_num_ver (vn->vn_mode, tb, h, 
+			      lpar - ((h || tb->lbytes == -1) ? 0 : 1), -1, h ? (vn->vn_nr_item-rpar):(rpar - ((tb->rbytes != -1) ? 1 : 0)), -1,
+			      snum012 + LR_SHIFT_NO_FLOW, NO_FLOW);
+	if (!h)
+	{
+	    int lrnver1;
+
+	    lrnver1 = get_num_ver (vn->vn_mode, tb, h, 
+				   lpar - ((tb->lbytes != -1) ? 1 : 0), tb->lbytes, (rpar - ((tb->rbytes != -1) ? 1 : 0)), tb->rbytes,
+				   snum012 + LR_SHIFT_FLOW, FLOW);
+	    if (lrnver > lrnver1)
+		lrset = LR_SHIFT_FLOW, lrnver = lrnver1;
+	}
+
+
+
+	/* Our general shifting strategy is:
+	   1) to minimized number of new nodes;
+	   2) to minimized number of neighbors involved in shifting;
+	   3) to minimized number of disk reads; */
+
+	/* we can win TWO or ONE nodes by shifting in both directions */
+	if (lrnver < lnver && lrnver < rnver)
+	{
+	    RFALSE( h && 
+		    (tb->lnum[h] != 1 || 
+		     tb->rnum[h] != 1 || 
+		     lrnver != 1 || rnver != 2 || lnver != 2 || h != 1),
+		    "vs-8230: bad h");
+	    if (lrset == LR_SHIFT_FLOW)
+		set_parameters (tb, h, tb->lnum[h], tb->rnum[h], lrnver, snum012 + lrset,
+				tb->lbytes, tb->rbytes);
+	    else
+		set_parameters (tb, h, tb->lnum[h] - ((tb->lbytes == -1) ? 0 : 1), 
+				tb->rnum[h] - ((tb->rbytes == -1) ? 0 : 1), lrnver, snum012 + lrset, -1, -1);
+
+	    return CARRY_ON;
+	}
+
+	/* if shifting doesn't lead to better packing then don't shift */
+	if (nver == lrnver)
+	{
+	    set_parameters (tb, h, 0, 0, nver, snum012 + nset, -1, -1);
+	    return CARRY_ON;
+	}
+
+
+	/* now we know that for better packing shifting in only one
+	   direction either to the left or to the right is required */
+
+	/*  if shifting to the left is better than shifting to the right */
+	if (lnver < rnver)
+	{
+	    SET_PAR_SHIFT_LEFT;
+	    return CARRY_ON;
+	}
+
+	/* if shifting to the right is better than shifting to the left */
+	if (lnver > rnver)
+	{
+	    SET_PAR_SHIFT_RIGHT;
+	    return CARRY_ON;
+	}
+
+
+	/* now shifting in either direction gives the same number
+	   of nodes and we can make use of the cached neighbors */
+	if (is_left_neighbor_in_cache (tb,h))
+	{
+	    SET_PAR_SHIFT_LEFT;
+	    return CARRY_ON;
+	}
+
+	/* shift to the right independently on whether the right neighbor in cache or not */
+	SET_PAR_SHIFT_RIGHT;
+	return CARRY_ON;
+    }
+}
+
+
+/* Check whether current node S[h] is balanced when Decreasing its size by
+ * Deleting or Cutting for INTERNAL node of S+tree.
+ * Calculate parameters for balancing for current level h.
+ * Parameters:
+ *	tb	tree_balance structure;
+ *	h	current level of the node;
+ *	inum	item number in S[h];
+ *	mode	i - insert, p - paste;
+ * Returns:	1 - schedule occurred; 
+ *	        0 - balancing for higher levels needed;
+ *	       -1 - no balancing for higher levels needed;
+ *	       -2 - no disk space.
+ *
+ * Note: Items of internal nodes have fixed size, so the balance condition for
+ * the internal part of S+tree is as for the B-trees.
+ */
+static int dc_check_balance_internal (struct tree_balance * tb, int h)
+{
+  struct virtual_node * vn = tb->tb_vn;
+
+  /* Sh is the node whose balance is currently being checked,
+     and Fh is its father.  */
+  struct buffer_head * Sh, * Fh;
+  int maxsize,
+      n_ret_value;
+  int lfree, rfree /* free space in L and R */;
+
+  Sh = PATH_H_PBUFFER (tb->tb_path, h); 
+  Fh = PATH_H_PPARENT (tb->tb_path, h); 
+
+  maxsize = MAX_CHILD_SIZE(Sh); 
+
+/*   using tb->insert_size[h], which is negative in this case, create_virtual_node calculates: */
+/*   new_nr_item = number of items node would have if operation is */
+/* 	performed without balancing (new_nr_item); */
+  create_virtual_node (tb, h);
+
+  if ( ! Fh )
+    {   /* S[h] is the root. */
+      if ( vn->vn_nr_item > 0 )
+	{
+	  set_parameters (tb, h, 0, 0, 1, NULL, -1, -1);
+	  return NO_BALANCING_NEEDED; /* no balancing for higher levels needed */
+	}
+      /* new_nr_item == 0.
+       * Current root will be deleted resulting in
+       * decrementing the tree height. */
+      set_parameters (tb, h, 0, 0, 0, NULL, -1, -1);
+      return CARRY_ON;
+    }
+
+  if ( (n_ret_value = get_parents(tb,h)) != CARRY_ON )
+    return n_ret_value;
+
+
+  /* get free space of neighbors */
+  rfree = get_rfree (tb, h);
+  lfree = get_lfree (tb, h);
+		
+  /* determine maximal number of items we can fit into neighbors */
+  check_left (tb, h, lfree);
+  check_right (tb, h, rfree);
+
+
+  if ( vn->vn_nr_item >= MIN_NR_KEY(Sh) )
+    { /* Balance condition for the internal node is valid.
+       * In this case we balance only if it leads to better packing. */ 
+      if ( vn->vn_nr_item == MIN_NR_KEY(Sh) )
+	{ /* Here we join S[h] with one of its neighbors,
+	   * which is impossible with greater values of new_nr_item. */
+	  if ( tb->lnum[h] >= vn->vn_nr_item + 1 )
+	    {
+	      /* All contents of S[h] can be moved to L[h]. */
+	      int n;
+	      int order_L;
+	      
+	      order_L = ((n=PATH_H_B_ITEM_ORDER(tb->tb_path, h))==0) ? B_NR_ITEMS(tb->FL[h]) : n - 1;
+	      n = dc_size(B_N_CHILD(tb->FL[h],order_L)) / (DC_SIZE + KEY_SIZE);
+	      set_parameters (tb, h, -n-1, 0, 0, NULL, -1, -1);
+	      return CARRY_ON;
+	    }
+
+	  if ( tb->rnum[h] >= vn->vn_nr_item + 1 )
+	    {
+	      /* All contents of S[h] can be moved to R[h]. */
+	      int n;
+	      int order_R;
+	    
+	      order_R = ((n=PATH_H_B_ITEM_ORDER(tb->tb_path, h))==B_NR_ITEMS(Fh)) ? 0 : n + 1;
+	      n = dc_size(B_N_CHILD(tb->FR[h],order_R)) / (DC_SIZE + KEY_SIZE);
+	      set_parameters (tb, h, 0, -n-1, 0, NULL, -1, -1);
+	      return CARRY_ON;   
+	    }
+	}
+
+      if (tb->rnum[h] + tb->lnum[h] >= vn->vn_nr_item + 1)
+	{
+	  /* All contents of S[h] can be moved to the neighbors (L[h] & R[h]). */
+	  int to_r;
+
+	  to_r = ((MAX_NR_KEY(Sh)<<1)+2-tb->lnum[h]-tb->rnum[h]+vn->vn_nr_item+1)/2 - 
+	    (MAX_NR_KEY(Sh) + 1 - tb->rnum[h]);
+	  set_parameters (tb, h, vn->vn_nr_item + 1 - to_r, to_r, 0, NULL, -1, -1);
+	  return CARRY_ON;
+	}
+
+      /* Balancing does not lead to better packing. */
+      set_parameters (tb, h, 0, 0, 1, NULL, -1, -1);
+      return NO_BALANCING_NEEDED;
+    }
+
+  /* Current node contain insufficient number of items. Balancing is required. */	
+  /* Check whether we can merge S[h] with left neighbor. */
+  if (tb->lnum[h] >= vn->vn_nr_item + 1)
+    if (is_left_neighbor_in_cache (tb,h) || tb->rnum[h] < vn->vn_nr_item + 1 || !tb->FR[h])
+      {
+	int n;
+	int order_L;
+	      
+	order_L = ((n=PATH_H_B_ITEM_ORDER(tb->tb_path, h))==0) ? B_NR_ITEMS(tb->FL[h]) : n - 1;
+	n = dc_size(B_N_CHILD(tb->FL[h],order_L)) / (DC_SIZE + KEY_SIZE);
+	set_parameters (tb, h, -n-1, 0, 0, NULL, -1, -1);
+	return CARRY_ON;
+      }
+
+  /* Check whether we can merge S[h] with right neighbor. */
+  if (tb->rnum[h] >= vn->vn_nr_item + 1)
+    {
+      int n;
+      int order_R;
+	    
+      order_R = ((n=PATH_H_B_ITEM_ORDER(tb->tb_path, h))==B_NR_ITEMS(Fh)) ? 0 : (n + 1);
+      n = dc_size(B_N_CHILD(tb->FR[h],order_R)) / (DC_SIZE + KEY_SIZE);
+      set_parameters (tb, h, 0, -n-1, 0, NULL, -1, -1);
+      return CARRY_ON;   
+    }
+
+  /* All contents of S[h] can be moved to the neighbors (L[h] & R[h]). */
+  if (tb->rnum[h] + tb->lnum[h] >= vn->vn_nr_item + 1)
+    {
+      int to_r;
+	    
+      to_r = ((MAX_NR_KEY(Sh)<<1)+2-tb->lnum[h]-tb->rnum[h]+vn->vn_nr_item+1)/2 - 
+	(MAX_NR_KEY(Sh) + 1 - tb->rnum[h]);
+      set_parameters (tb, h, vn->vn_nr_item + 1 - to_r, to_r, 0, NULL, -1, -1);
+      return CARRY_ON;
+    }
+
+  /* For internal nodes try to borrow item from a neighbor */
+  RFALSE( !tb->FL[h] && !tb->FR[h], "vs-8235: trying to borrow for root");
+
+  /* Borrow one or two items from caching neighbor */
+  if (is_left_neighbor_in_cache (tb,h) || !tb->FR[h])
+    {
+      int from_l;
+		
+      from_l = (MAX_NR_KEY(Sh) + 1 - tb->lnum[h] + vn->vn_nr_item + 1) / 2 -  (vn->vn_nr_item + 1);
+      set_parameters (tb, h, -from_l, 0, 1, NULL, -1, -1);
+      return CARRY_ON;
+    }
+
+  set_parameters (tb, h, 0, -((MAX_NR_KEY(Sh)+1-tb->rnum[h]+vn->vn_nr_item+1)/2-(vn->vn_nr_item+1)), 1, 
+		  NULL, -1, -1);
+  return CARRY_ON;
+}
+
+
+/* Check whether current node S[h] is balanced when Decreasing its size by
+ * Deleting or Truncating for LEAF node of S+tree.
+ * Calculate parameters for balancing for current level h.
+ * Parameters:
+ *	tb	tree_balance structure;
+ *	h	current level of the node;
+ *	inum	item number in S[h];
+ *	mode	i - insert, p - paste;
+ * Returns:	1 - schedule occurred; 
+ *	        0 - balancing for higher levels needed;
+ *	       -1 - no balancing for higher levels needed;
+ *	       -2 - no disk space.
+ */
+static int dc_check_balance_leaf (struct tree_balance * tb, int h)
+{
+  struct virtual_node * vn = tb->tb_vn;
+
+  /* Number of bytes that must be deleted from
+     (value is negative if bytes are deleted) buffer which
+     contains node being balanced.  The mnemonic is that the
+     attempted change in node space used level is levbytes bytes. */
+  int levbytes;
+  /* the maximal item size */
+  int maxsize,
+      n_ret_value;
+  /* S0 is the node whose balance is currently being checked,
+     and F0 is its father.  */
+  struct buffer_head * S0, * F0;
+  int lfree, rfree /* free space in L and R */;
+
+  S0 = PATH_H_PBUFFER (tb->tb_path, 0);
+  F0 = PATH_H_PPARENT (tb->tb_path, 0);
+
+  levbytes = tb->insert_size[h];
+
+  maxsize = MAX_CHILD_SIZE(S0); 	/* maximal possible size of an item */
+
+  if ( ! F0 )
+    {  /* S[0] is the root now. */
+
+      RFALSE( -levbytes >= maxsize - B_FREE_SPACE (S0),
+	      "vs-8240: attempt to create empty buffer tree");
+
+      set_parameters (tb, h, 0, 0, 1, NULL, -1, -1);
+      return NO_BALANCING_NEEDED;
+    }
+
+  if ( (n_ret_value = get_parents(tb,h)) != CARRY_ON )
+    return n_ret_value;
+
+  /* get free space of neighbors */
+  rfree = get_rfree (tb, h);
+  lfree = get_lfree (tb, h);		
+
+  create_virtual_node (tb, h);
+
+  /* if 3 leaves can be merge to one, set parameters and return */
+  if (are_leaves_removable (tb, lfree, rfree))
+    return CARRY_ON;
+
+  /* determine maximal number of items we can shift to the left/right  neighbor
+     and the maximal number of bytes that can flow to the left/right neighbor
+     from the left/right most liquid item that cannot be shifted from S[0] entirely
+     */
+  check_left (tb, h, lfree);
+  check_right (tb, h, rfree);   
+
+  /* check whether we can merge S with left neighbor. */
+  if (tb->lnum[0] >= vn->vn_nr_item && tb->lbytes == -1)
+    if (is_left_neighbor_in_cache (tb,h) ||
+	((tb->rnum[0] - ((tb->rbytes == -1) ? 0 : 1)) < vn->vn_nr_item) || /* S can not be merged with R */
+	!tb->FR[h]) {
+      
+      RFALSE( !tb->FL[h], "vs-8245: dc_check_balance_leaf: FL[h] must exist");
+
+      /* set parameter to merge S[0] with its left neighbor */
+      set_parameters (tb, h, -1, 0, 0, NULL, -1, -1);
+      return CARRY_ON;
+    }
+
+  /* check whether we can merge S[0] with right neighbor. */
+  if (tb->rnum[0] >= vn->vn_nr_item && tb->rbytes == -1) {
+    set_parameters (tb, h, 0, -1, 0, NULL, -1, -1);
+    return CARRY_ON;
+  }
+  
+  /* All contents of S[0] can be moved to the neighbors (L[0] & R[0]). Set parameters and return */
+  if (is_leaf_removable (tb))
+    return CARRY_ON;
+  
+  /* Balancing is not required. */
+  tb->s0num = vn->vn_nr_item;
+  set_parameters (tb, h, 0, 0, 1, NULL, -1, -1);
+  return NO_BALANCING_NEEDED;
+}
+
+
+
+/* Check whether current node S[h] is balanced when Decreasing its size by
+ * Deleting or Cutting.
+ * Calculate parameters for balancing for current level h.
+ * Parameters:
+ *	tb	tree_balance structure;
+ *	h	current level of the node;
+ *	inum	item number in S[h];
+ *	mode	d - delete, c - cut.
+ * Returns:	1 - schedule occurred; 
+ *	        0 - balancing for higher levels needed;
+ *	       -1 - no balancing for higher levels needed;
+ *	       -2 - no disk space.
+ */
+static int dc_check_balance (struct tree_balance * tb, int h)
+{
+ RFALSE( ! (PATH_H_PBUFFER (tb->tb_path, h)), "vs-8250: S is not initialized");
+
+ if ( h )
+   return dc_check_balance_internal (tb, h);
+ else
+   return dc_check_balance_leaf (tb, h);
+}
+
+
+
+/* Check whether current node S[h] is balanced.
+ * Calculate parameters for balancing for current level h.
+ * Parameters:
+ *
+ *	tb	tree_balance structure:
+ *
+ *              tb is a large structure that must be read about in the header file
+ *              at the same time as this procedure if the reader is to successfully
+ *              understand this procedure
+ *
+ *	h	current level of the node;
+ *	inum	item number in S[h];
+ *	mode	i - insert, p - paste, d - delete, c - cut.
+ * Returns:	1 - schedule occurred; 
+ *	        0 - balancing for higher levels needed;
+ *	       -1 - no balancing for higher levels needed;
+ *	       -2 - no disk space.
+ */
+static int check_balance (int mode, 
+			  struct tree_balance * tb,
+			  int h, 
+			  int inum,
+			  int pos_in_item,
+			  struct item_head * ins_ih,
+			  const void * data
+			  )
+{
+  struct virtual_node * vn;
+
+  vn = tb->tb_vn = (struct virtual_node *)(tb->vn_buf);
+  vn->vn_free_ptr = (char *)(tb->tb_vn + 1);
+  vn->vn_mode = mode;
+  vn->vn_affected_item_num = inum;
+  vn->vn_pos_in_item = pos_in_item;
+  vn->vn_ins_ih = ins_ih;
+  vn->vn_data = data;
+
+  RFALSE( mode == M_INSERT && !vn->vn_ins_ih,
+	  "vs-8255: ins_ih can not be 0 in insert mode");
+
+ if ( tb->insert_size[h] > 0 )
+   /* Calculate balance parameters when size of node is increasing. */
+   return ip_check_balance (tb, h);
+
+ /* Calculate balance parameters when  size of node is decreasing. */
+ return dc_check_balance (tb, h);
+}
+
+
+
+/* Check whether parent at the path is the really parent of the current node.*/
+static int  get_direct_parent(
+              struct tree_balance * p_s_tb,
+              int                   n_h
+            ) {
+    struct buffer_head  * p_s_bh;
+    struct path         * p_s_path      = p_s_tb->tb_path;
+    int                   n_position,
+	n_path_offset = PATH_H_PATH_OFFSET(p_s_tb->tb_path, n_h);
+    
+    /* We are in the root or in the new root. */
+    if ( n_path_offset <= FIRST_PATH_ELEMENT_OFFSET ) {
+	
+	RFALSE( n_path_offset < FIRST_PATH_ELEMENT_OFFSET - 1,
+		"PAP-8260: illegal offset in the path");
+
+	if ( PATH_OFFSET_PBUFFER(p_s_path, FIRST_PATH_ELEMENT_OFFSET)->b_blocknr ==
+	     SB_ROOT_BLOCK (p_s_tb->tb_sb) ) {
+	    /* Root is not changed. */
+	    PATH_OFFSET_PBUFFER(p_s_path, n_path_offset - 1) = NULL;
+	    PATH_OFFSET_POSITION(p_s_path, n_path_offset - 1) = 0;
+	    return CARRY_ON;
+	}
+	return REPEAT_SEARCH; /* Root is changed and we must recalculate the path. */
+    }
+
+    if ( ! B_IS_IN_TREE(p_s_bh = PATH_OFFSET_PBUFFER(p_s_path, n_path_offset - 1)) )
+	return REPEAT_SEARCH; /* Parent in the path is not in the tree. */
+
+    if ( (n_position = PATH_OFFSET_POSITION(p_s_path, n_path_offset - 1)) > B_NR_ITEMS(p_s_bh) )
+	return REPEAT_SEARCH;
+    
+    if ( B_N_CHILD_NUM(p_s_bh, n_position) != PATH_OFFSET_PBUFFER(p_s_path, n_path_offset)->b_blocknr )
+	/* Parent in the path is not parent of the current node in the tree. */
+	return REPEAT_SEARCH;
+
+    if ( buffer_locked(p_s_bh) ) {
+	__wait_on_buffer(p_s_bh);
+	if ( FILESYSTEM_CHANGED_TB (p_s_tb) )
+	    return REPEAT_SEARCH;
+    }
+
+    return CARRY_ON; /* Parent in the path is unlocked and really parent of the current node.  */
+}
+
+
+/* Using lnum[n_h] and rnum[n_h] we should determine what neighbors
+ * of S[n_h] we
+ * need in order to balance S[n_h], and get them if necessary.
+ * Returns:	SCHEDULE_OCCURRED - schedule occurred while the function worked;
+ *	        CARRY_ON - schedule didn't occur while the function worked;
+ */
+static int  get_neighbors(
+	            struct tree_balance * p_s_tb,
+	            int 		  n_h
+	          ) {
+    int		 	n_child_position,
+	n_path_offset = PATH_H_PATH_OFFSET(p_s_tb->tb_path, n_h + 1);
+    unsigned long		n_son_number;
+    struct super_block  *	p_s_sb = p_s_tb->tb_sb;
+    struct buffer_head  * p_s_bh;
+
+
+    PROC_INFO_INC( p_s_sb, get_neighbors[ n_h ] );
+
+    if ( p_s_tb->lnum[n_h] ) {
+	/* We need left neighbor to balance S[n_h]. */
+	PROC_INFO_INC( p_s_sb, need_l_neighbor[ n_h ] );
+	p_s_bh = PATH_OFFSET_PBUFFER(p_s_tb->tb_path, n_path_offset);
+	
+	RFALSE( p_s_bh == p_s_tb->FL[n_h] && 
+		! PATH_OFFSET_POSITION(p_s_tb->tb_path, n_path_offset),
+		"PAP-8270: invalid position in the parent");
+
+	n_child_position = ( p_s_bh == p_s_tb->FL[n_h] ) ? p_s_tb->lkey[n_h] : B_NR_ITEMS (p_s_tb->FL[n_h]);
+	n_son_number = B_N_CHILD_NUM(p_s_tb->FL[n_h], n_child_position);
+	p_s_bh = reiserfs_bread(p_s_sb, n_son_number, p_s_sb->s_blocksize);
+	if (!p_s_bh)
+	    return IO_ERROR;
+	if ( FILESYSTEM_CHANGED_TB (p_s_tb) ) {
+	    decrement_bcount(p_s_bh);
+	    PROC_INFO_INC( p_s_sb, get_neighbors_restart[ n_h ] );
+	    return REPEAT_SEARCH;
+	}
+	
+	RFALSE( ! B_IS_IN_TREE(p_s_tb->FL[n_h]) ||
+                n_child_position > B_NR_ITEMS(p_s_tb->FL[n_h]) ||
+	        B_N_CHILD_NUM(p_s_tb->FL[n_h], n_child_position) !=
+                p_s_bh->b_blocknr, "PAP-8275: invalid parent");
+	RFALSE( ! B_IS_IN_TREE(p_s_bh), "PAP-8280: invalid child");
+	RFALSE( ! n_h &&
+                B_FREE_SPACE (p_s_bh) != MAX_CHILD_SIZE (p_s_bh) - dc_size(B_N_CHILD (p_s_tb->FL[0],n_child_position)),
+                "PAP-8290: invalid child size of left neighbor");
+
+	decrement_bcount(p_s_tb->L[n_h]);
+	p_s_tb->L[n_h] = p_s_bh;
+    }
+
+
+    if ( p_s_tb->rnum[n_h] ) { /* We need right neighbor to balance S[n_path_offset]. */
+	PROC_INFO_INC( p_s_sb, need_r_neighbor[ n_h ] );
+	p_s_bh = PATH_OFFSET_PBUFFER(p_s_tb->tb_path, n_path_offset);
+	
+	RFALSE( p_s_bh == p_s_tb->FR[n_h] && 
+		PATH_OFFSET_POSITION(p_s_tb->tb_path, n_path_offset) >= B_NR_ITEMS(p_s_bh),
+		"PAP-8295: invalid position in the parent");
+
+	n_child_position = ( p_s_bh == p_s_tb->FR[n_h] ) ? p_s_tb->rkey[n_h] + 1 : 0;
+	n_son_number = B_N_CHILD_NUM(p_s_tb->FR[n_h], n_child_position);
+	p_s_bh = reiserfs_bread(p_s_sb, n_son_number, p_s_sb->s_blocksize);
+	if (!p_s_bh)
+	    return IO_ERROR;
+	if ( FILESYSTEM_CHANGED_TB (p_s_tb) ) {
+	    decrement_bcount(p_s_bh);
+	    PROC_INFO_INC( p_s_sb, get_neighbors_restart[ n_h ] );
+	    return REPEAT_SEARCH;
+	}
+	decrement_bcount(p_s_tb->R[n_h]);
+	p_s_tb->R[n_h] = p_s_bh;
+
+	RFALSE( ! n_h && B_FREE_SPACE (p_s_bh) != MAX_CHILD_SIZE (p_s_bh) - dc_size(B_N_CHILD (p_s_tb->FR[0],n_child_position)),
+                "PAP-8300: invalid child size of right neighbor (%d != %d - %d)",
+                B_FREE_SPACE (p_s_bh), MAX_CHILD_SIZE (p_s_bh),
+                dc_size(B_N_CHILD (p_s_tb->FR[0],n_child_position)));
+	
+    }
+    return CARRY_ON;
+}
+
+#ifdef CONFIG_REISERFS_CHECK
+void * reiserfs_kmalloc (size_t size, int flags, struct super_block * s)
+{
+    void * vp;
+    static size_t malloced;
+
+
+    vp = kmalloc (size, flags);
+    if (vp) {
+	s->u.reiserfs_sb.s_kmallocs += size;
+	if (s->u.reiserfs_sb.s_kmallocs > malloced + 200000) {
+	    reiserfs_warning (s, "vs-8301: reiserfs_kmalloc: allocated memory %d\n", s->u.reiserfs_sb.s_kmallocs);
+	    malloced = s->u.reiserfs_sb.s_kmallocs;
+	}
+    }
+/*printk ("malloc : size %d, allocated %d\n", size, s->u.reiserfs_sb.s_kmallocs);*/
+    return vp;
+}
+
+void reiserfs_kfree (const void * vp, size_t size, struct super_block * s)
+{
+    if (!vp)
+        return;
+    kfree (vp);
+  
+    s->u.reiserfs_sb.s_kmallocs -= size;
+    if (s->u.reiserfs_sb.s_kmallocs < 0)
+	reiserfs_warning (s, "vs-8302: reiserfs_kfree: allocated memory %d\n", s->u.reiserfs_sb.s_kmallocs);
+
+}
+#endif
+
+
+static int get_virtual_node_size (struct super_block * sb, struct buffer_head * bh)
+{
+    int max_num_of_items;
+    int max_num_of_entries;
+    unsigned long blocksize = sb->s_blocksize;
+
+#define MIN_NAME_LEN 1
+
+    max_num_of_items = (blocksize - BLKH_SIZE) / (IH_SIZE + MIN_ITEM_LEN);
+    max_num_of_entries = (blocksize - BLKH_SIZE - IH_SIZE) / 
+                         (DEH_SIZE + MIN_NAME_LEN);
+
+    return sizeof(struct virtual_node) + 
+           max(max_num_of_items * sizeof (struct virtual_item),
+	       sizeof (struct virtual_item) + sizeof(struct direntry_uarea) + 
+               (max_num_of_entries - 1) * sizeof (__u16));
+}
+
+
+
+/* maybe we should fail balancing we are going to perform when kmalloc
+   fails several times. But now it will loop until kmalloc gets
+   required memory */
+static int get_mem_for_virtual_node (struct tree_balance * tb)
+{
+    int check_fs = 0;
+    int size;
+    char * buf;
+
+    size = get_virtual_node_size (tb->tb_sb, PATH_PLAST_BUFFER (tb->tb_path));
+
+    if (size > tb->vn_buf_size) {
+	/* we have to allocate more memory for virtual node */
+	if (tb->vn_buf) {
+	    /* free memory allocated before */
+	    reiserfs_kfree (tb->vn_buf, tb->vn_buf_size, tb->tb_sb);
+	    /* this is not needed if kfree is atomic */
+            check_fs = 1;
+	}
+
+	/* virtual node requires now more memory */
+	tb->vn_buf_size = size;
+
+	/* get memory for virtual item */
+	buf = reiserfs_kmalloc(size, GFP_ATOMIC, tb->tb_sb);
+	if ( ! buf ) {
+	    /* getting memory with GFP_KERNEL priority may involve
+               balancing now (due to indirect_to_direct conversion on
+               dcache shrinking). So, release path and collected
+               resources here */
+	    free_buffers_in_tb (tb);
+	    buf = reiserfs_kmalloc(size, GFP_NOFS, tb->tb_sb);
+	    if ( !buf ) {
+#ifdef CONFIG_REISERFS_CHECK
+		reiserfs_warning (tb->tb_sb, "vs-8345: get_mem_for_virtual_node: "
+				  "kmalloc failed. reiserfs kmalloced %d bytes\n",
+				  tb->tb_sb->u.reiserfs_sb.s_kmallocs);
+#endif
+		tb->vn_buf_size = 0;
+	    }
+	    tb->vn_buf = buf;
+	    schedule() ;
+	    return REPEAT_SEARCH;
+	}
+
+	tb->vn_buf = buf;
+    }
+
+    if ( check_fs && FILESYSTEM_CHANGED_TB (tb) )
+        return REPEAT_SEARCH;
+
+    return CARRY_ON;
+}
+
+
+#ifdef CONFIG_REISERFS_CHECK
+static void tb_buffer_sanity_check (struct super_block * p_s_sb,
+				    struct buffer_head * p_s_bh, 
+				    const char *descr, int level) {
+  if (p_s_bh) {
+    if (atomic_read (&(p_s_bh->b_count)) <= 0) {
+
+      reiserfs_panic (p_s_sb, "tb_buffer_sanity_check(): negative or zero reference counter for buffer %s[%d] (%b)\n", descr, level, p_s_bh);
+    }
+
+    if ( ! buffer_uptodate (p_s_bh) ) {
+      reiserfs_panic (p_s_sb, "tb_buffer_sanity_check(): buffer is not up to date %s[%d] (%b)\n", descr, level, p_s_bh);
+    }
+
+    if ( ! B_IS_IN_TREE (p_s_bh) ) {
+      reiserfs_panic (p_s_sb, "tb_buffer_sanity_check(): buffer is not in tree %s[%d] (%b)\n", descr, level, p_s_bh);
+    }
+
+    if (p_s_bh->b_dev != p_s_sb->s_dev || 
+	p_s_bh->b_size != p_s_sb->s_blocksize ||
+	p_s_bh->b_blocknr > SB_BLOCK_COUNT(p_s_sb)) {
+      reiserfs_panic (p_s_sb, "tb_buffer_sanity_check(): check failed for buffer %s[%d] (%b)\n", descr, level, p_s_bh);
+    }
+  }
+}
+#else
+static void tb_buffer_sanity_check (struct super_block * p_s_sb,
+				    struct buffer_head * p_s_bh, 
+				    const char *descr, int level)
+{;}
+#endif
+
+static void clear_all_dirty_bits(struct super_block *s, 
+                                 struct buffer_head *bh) {
+  reiserfs_prepare_for_journal(s, bh, 0) ;
+}
+
+static int wait_tb_buffers_until_unlocked (struct tree_balance * p_s_tb)
+{
+    struct buffer_head * locked;
+#ifdef CONFIG_REISERFS_CHECK
+    int repeat_counter = 0;
+#endif
+    int i;
+
+    do {
+
+	locked = NULL;
+
+	for ( i = p_s_tb->tb_path->path_length; !locked && i > ILLEGAL_PATH_ELEMENT_OFFSET; i-- ) {
+	    if ( PATH_OFFSET_PBUFFER (p_s_tb->tb_path, i) ) {
+		/* if I understand correctly, we can only be sure the last buffer
+		** in the path is in the tree --clm
+		*/
+#ifdef CONFIG_REISERFS_CHECK
+		if (PATH_PLAST_BUFFER(p_s_tb->tb_path) ==
+		    PATH_OFFSET_PBUFFER(p_s_tb->tb_path, i)) {
+		    tb_buffer_sanity_check (p_s_tb->tb_sb, 
+					    PATH_OFFSET_PBUFFER (p_s_tb->tb_path, i), 
+					    "S", 
+					    p_s_tb->tb_path->path_length - i);
+		}
+#endif
+		clear_all_dirty_bits(p_s_tb->tb_sb, 
+				     PATH_OFFSET_PBUFFER (p_s_tb->tb_path, i)) ;
+
+		if ( buffer_locked (PATH_OFFSET_PBUFFER (p_s_tb->tb_path, i)) )
+		    locked = PATH_OFFSET_PBUFFER (p_s_tb->tb_path, i);
+	    }
+	}
+
+	for ( i = 0; !locked && i < MAX_HEIGHT && p_s_tb->insert_size[i]; i++ ) { 
+
+	    if (p_s_tb->lnum[i] ) {
+
+		if ( p_s_tb->L[i] ) {
+		    tb_buffer_sanity_check (p_s_tb->tb_sb, p_s_tb->L[i], "L", i);
+		    clear_all_dirty_bits(p_s_tb->tb_sb, p_s_tb->L[i]) ;
+		    if ( buffer_locked (p_s_tb->L[i]) )
+			locked = p_s_tb->L[i];
+		}
+
+		if ( !locked && p_s_tb->FL[i] ) {
+		    tb_buffer_sanity_check (p_s_tb->tb_sb, p_s_tb->FL[i], "FL", i);
+		    clear_all_dirty_bits(p_s_tb->tb_sb, p_s_tb->FL[i]) ;
+		    if ( buffer_locked (p_s_tb->FL[i]) )
+			locked = p_s_tb->FL[i];
+		}
+
+		if ( !locked && p_s_tb->CFL[i] ) {
+		    tb_buffer_sanity_check (p_s_tb->tb_sb, p_s_tb->CFL[i], "CFL", i);
+		    clear_all_dirty_bits(p_s_tb->tb_sb, p_s_tb->CFL[i]) ;
+		    if ( buffer_locked (p_s_tb->CFL[i]) )
+			locked = p_s_tb->CFL[i];
+		}
+
+	    }
+
+	    if ( !locked && (p_s_tb->rnum[i]) ) {
+
+		if ( p_s_tb->R[i] ) {
+		    tb_buffer_sanity_check (p_s_tb->tb_sb, p_s_tb->R[i], "R", i);
+		    clear_all_dirty_bits(p_s_tb->tb_sb, p_s_tb->R[i]) ;
+		    if ( buffer_locked (p_s_tb->R[i]) )
+			locked = p_s_tb->R[i];
+		}
+
+       
+		if ( !locked && p_s_tb->FR[i] ) {
+		    tb_buffer_sanity_check (p_s_tb->tb_sb, p_s_tb->FR[i], "FR", i);
+		    clear_all_dirty_bits(p_s_tb->tb_sb, p_s_tb->FR[i]) ;
+		    if ( buffer_locked (p_s_tb->FR[i]) )
+			locked = p_s_tb->FR[i];
+		}
+
+		if ( !locked && p_s_tb->CFR[i] ) {
+		    tb_buffer_sanity_check (p_s_tb->tb_sb, p_s_tb->CFR[i], "CFR", i);
+		    clear_all_dirty_bits(p_s_tb->tb_sb, p_s_tb->CFR[i]) ;
+		    if ( buffer_locked (p_s_tb->CFR[i]) )
+			locked = p_s_tb->CFR[i];
+		}
+	    }
+	}
+	/* as far as I can tell, this is not required.  The FEB list seems
+	** to be full of newly allocated nodes, which will never be locked,
+	** dirty, or anything else.
+	** To be safe, I'm putting in the checks and waits in.  For the moment,
+	** they are needed to keep the code in journal.c from complaining
+	** about the buffer.  That code is inside CONFIG_REISERFS_CHECK as well.
+	** --clm
+	*/
+	for ( i = 0; !locked && i < MAX_FEB_SIZE; i++ ) { 
+	    if ( p_s_tb->FEB[i] ) {
+		clear_all_dirty_bits(p_s_tb->tb_sb, p_s_tb->FEB[i]) ;
+		if (buffer_locked(p_s_tb->FEB[i])) {
+		    locked = p_s_tb->FEB[i] ;
+		}
+	    }
+	}
+
+	if (locked) {
+#ifdef CONFIG_REISERFS_CHECK
+	    repeat_counter++;
+	    if ( (repeat_counter % 10000) == 0) {
+		reiserfs_warning (p_s_tb->tb_sb, "wait_tb_buffers_until_released(): too many iterations waiting for buffer to unlock (%b)\n", locked);
+
+		/* Don't loop forever.  Try to recover from possible error. */
+
+		return ( FILESYSTEM_CHANGED_TB (p_s_tb) ) ? REPEAT_SEARCH : CARRY_ON;
+	    }
+#endif
+	    __wait_on_buffer (locked);
+	    if ( FILESYSTEM_CHANGED_TB (p_s_tb) ) {
+		return REPEAT_SEARCH;
+	    }
+	}
+
+    } while (locked);
+
+    return CARRY_ON;
+}
+
+
+/* Prepare for balancing, that is
+ *	get all necessary parents, and neighbors;
+ *	analyze what and where should be moved;
+ *	get sufficient number of new nodes;
+ * Balancing will start only after all resources will be collected at a time.
+ * 
+ * When ported to SMP kernels, only at the last moment after all needed nodes
+ * are collected in cache, will the resources be locked using the usual
+ * textbook ordered lock acquisition algorithms.  Note that ensuring that
+ * this code neither write locks what it does not need to write lock nor locks out of order
+ * will be a pain in the butt that could have been avoided.  Grumble grumble. -Hans
+ * 
+ * fix is meant in the sense of render unchanging
+ * 
+ * Latency might be improved by first gathering a list of what buffers are needed
+ * and then getting as many of them in parallel as possible? -Hans
+ *
+ * Parameters:
+ *	op_mode	i - insert, d - delete, c - cut (truncate), p - paste (append)
+ *	tb	tree_balance structure;
+ *	inum	item number in S[h];
+ *      pos_in_item - comment this if you can
+ *      ins_ih & ins_sd are used when inserting
+ * Returns:	1 - schedule occurred while the function worked;
+ *	        0 - schedule didn't occur while the function worked;
+ *             -1 - if no_disk_space 
+ */
+
+
+int fix_nodes (int n_op_mode,
+	       struct tree_balance * 	p_s_tb,
+	       struct item_head * p_s_ins_ih, // item head of item being inserted
+	       const void * data // inserted item or data to be pasted
+    ) {
+    int	n_ret_value,
+    	n_h,
+    	n_item_num = PATH_LAST_POSITION(p_s_tb->tb_path);
+    int n_pos_in_item;
+
+    /* we set wait_tb_buffers_run when we have to restore any dirty bits cleared
+    ** during wait_tb_buffers_run
+    */
+    int wait_tb_buffers_run = 0 ; 
+    int windex ;
+    struct buffer_head  * p_s_tbS0 = PATH_PLAST_BUFFER(p_s_tb->tb_path);
+
+    ++ p_s_tb -> tb_sb -> u.reiserfs_sb.s_fix_nodes;
+
+    n_pos_in_item = p_s_tb->tb_path->pos_in_item;
+
+
+    p_s_tb->fs_gen = get_generation (p_s_tb->tb_sb);
+
+    /* we prepare and log the super here so it will already be in the
+    ** transaction when do_balance needs to change it.
+    ** This way do_balance won't have to schedule when trying to prepare
+    ** the super for logging
+    */
+    reiserfs_prepare_for_journal(p_s_tb->tb_sb, 
+                                 SB_BUFFER_WITH_SB(p_s_tb->tb_sb), 1) ;
+    journal_mark_dirty(p_s_tb->transaction_handle, p_s_tb->tb_sb, 
+                       SB_BUFFER_WITH_SB(p_s_tb->tb_sb)) ;
+    if ( FILESYSTEM_CHANGED_TB (p_s_tb) )
+	return REPEAT_SEARCH;
+
+    /* if it possible in indirect_to_direct conversion */
+    if (buffer_locked (p_s_tbS0)) {
+        __wait_on_buffer (p_s_tbS0);
+        if ( FILESYSTEM_CHANGED_TB (p_s_tb) )
+            return REPEAT_SEARCH;
+    }
+
+#ifdef CONFIG_REISERFS_CHECK
+    if ( cur_tb ) {
+	print_cur_tb ("fix_nodes");
+	reiserfs_panic(p_s_tb->tb_sb,"PAP-8305: fix_nodes:  there is pending do_balance");
+    }
+
+    if (!buffer_uptodate (p_s_tbS0) || !B_IS_IN_TREE (p_s_tbS0)) {
+	reiserfs_panic (p_s_tb->tb_sb, "PAP-8320: fix_nodes: S[0] (%b %z) is not uptodate "
+			"at the beginning of fix_nodes or not in tree (mode %c)", p_s_tbS0, p_s_tbS0, n_op_mode);
+    }
+
+    /* Check parameters. */
+    switch (n_op_mode) {
+    case M_INSERT:
+	if ( n_item_num <= 0 || n_item_num > B_NR_ITEMS(p_s_tbS0) )
+	    reiserfs_panic(p_s_tb->tb_sb,"PAP-8330: fix_nodes: Incorrect item number %d (in S0 - %d) in case of insert",
+			   n_item_num, B_NR_ITEMS(p_s_tbS0));
+	break;
+    case M_PASTE:
+    case M_DELETE:
+    case M_CUT:
+	if ( n_item_num < 0 || n_item_num >= B_NR_ITEMS(p_s_tbS0) ) {
+	    print_block (p_s_tbS0, 0, -1, -1);
+	    printk("mode = %c insert_size = %d\n", n_op_mode, p_s_tb->insert_size[0]);
+	    reiserfs_panic(p_s_tb->tb_sb,"PAP-8335: fix_nodes: Incorrect item number(%d)", n_item_num);
+	}
+	break;
+    default:
+	reiserfs_panic(p_s_tb->tb_sb,"PAP-8340: fix_nodes: Incorrect mode of operation");
+    }
+#endif
+
+    if (get_mem_for_virtual_node (p_s_tb) == REPEAT_SEARCH)
+	// FIXME: maybe -ENOMEM when tb->vn_buf == 0? Now just repeat
+	return REPEAT_SEARCH;
+
+
+    /* Starting from the leaf level; for all levels n_h of the tree. */
+    for ( n_h = 0; n_h < MAX_HEIGHT && p_s_tb->insert_size[n_h]; n_h++ ) { 
+	if ( (n_ret_value = get_direct_parent(p_s_tb, n_h)) != CARRY_ON ) {
+	    goto repeat;
+	}
+
+	if ( (n_ret_value = check_balance (n_op_mode, p_s_tb, n_h, n_item_num,
+					   n_pos_in_item, p_s_ins_ih, data)) != CARRY_ON ) {
+	    if ( n_ret_value == NO_BALANCING_NEEDED ) {
+		/* No balancing for higher levels needed. */
+		if ( (n_ret_value = get_neighbors(p_s_tb, n_h)) != CARRY_ON ) {
+		    goto repeat;
+		}
+		if ( n_h != MAX_HEIGHT - 1 )  
+		    p_s_tb->insert_size[n_h + 1] = 0;
+		/* ok, analysis and resource gathering are complete */
+		break;
+	    }
+	    goto repeat;
+	}
+
+	if ( (n_ret_value = get_neighbors(p_s_tb, n_h)) != CARRY_ON ) {
+	    goto repeat;
+	}
+
+	if ( (n_ret_value = get_empty_nodes(p_s_tb, n_h)) != CARRY_ON ) {
+	    goto repeat;        /* No disk space, or schedule occurred and
+				   analysis may be invalid and needs to be redone. */
+	}
+    
+	if ( ! PATH_H_PBUFFER(p_s_tb->tb_path, n_h) ) {
+	    /* We have a positive insert size but no nodes exist on this
+	       level, this means that we are creating a new root. */
+
+	    RFALSE( p_s_tb->blknum[n_h] != 1,
+		    "PAP-8350: creating new empty root");
+
+	    if ( n_h < MAX_HEIGHT - 1 )
+		p_s_tb->insert_size[n_h + 1] = 0;
+	}
+	else
+	    if ( ! PATH_H_PBUFFER(p_s_tb->tb_path, n_h + 1) ) {
+		if ( p_s_tb->blknum[n_h] > 1 ) {
+		    /* The tree needs to be grown, so this node S[n_h]
+		       which is the root node is split into two nodes,
+		       and a new node (S[n_h+1]) will be created to
+		       become the root node.  */
+	  
+		    RFALSE( n_h == MAX_HEIGHT - 1,
+			    "PAP-8355: attempt to create too high of a tree");
+
+		    p_s_tb->insert_size[n_h + 1] = (DC_SIZE + KEY_SIZE) * (p_s_tb->blknum[n_h] - 1) + DC_SIZE;
+		}
+		else
+		    if ( n_h < MAX_HEIGHT - 1 )
+			p_s_tb->insert_size[n_h + 1] = 0;
+	    }
+	    else
+		p_s_tb->insert_size[n_h + 1] = (DC_SIZE + KEY_SIZE) * (p_s_tb->blknum[n_h] - 1);
+    }
+
+    
+    windex = push_journal_writer("fix_nodes") ;
+    if ((n_ret_value = wait_tb_buffers_until_unlocked (p_s_tb)) == CARRY_ON) {
+	pop_journal_writer(windex) ;
+	if (FILESYSTEM_CHANGED_TB(p_s_tb)) {
+	    wait_tb_buffers_run = 1 ;
+	    n_ret_value = REPEAT_SEARCH ;
+	    goto repeat; 
+	} else {
+	    return CARRY_ON;
+	}
+    } else {
+	wait_tb_buffers_run = 1 ;
+	pop_journal_writer(windex) ;
+	goto repeat; 
+    }
+
+ repeat:
+    // fix_nodes was unable to perform its calculation due to
+    // filesystem got changed under us, lack of free disk space or i/o
+    // failure. If the first is the case - the search will be
+    // repeated. For now - free all resources acquired so far except
+    // for the new allocated nodes
+    {
+	int i;
+
+	/* Release path buffers. */
+	if (wait_tb_buffers_run) {
+	    pathrelse_and_restore(p_s_tb->tb_sb, p_s_tb->tb_path) ;
+	} else {
+	    pathrelse (p_s_tb->tb_path);
+        }	
+	/* brelse all resources collected for balancing */
+	for ( i = 0; i < MAX_HEIGHT; i++ ) {
+	    if (wait_tb_buffers_run) {
+		reiserfs_restore_prepared_buffer(p_s_tb->tb_sb, p_s_tb->L[i]);
+		reiserfs_restore_prepared_buffer(p_s_tb->tb_sb, p_s_tb->R[i]);
+		reiserfs_restore_prepared_buffer(p_s_tb->tb_sb, p_s_tb->FL[i]);
+		reiserfs_restore_prepared_buffer(p_s_tb->tb_sb, p_s_tb->FR[i]);
+		reiserfs_restore_prepared_buffer(p_s_tb->tb_sb, p_s_tb->CFL[i]);
+		reiserfs_restore_prepared_buffer(p_s_tb->tb_sb, p_s_tb->CFR[i]);
+	    }
+
+	    brelse (p_s_tb->L[i]);p_s_tb->L[i] = 0;
+	    brelse (p_s_tb->R[i]);p_s_tb->R[i] = 0;
+	    brelse (p_s_tb->FL[i]);p_s_tb->FL[i] = 0;
+	    brelse (p_s_tb->FR[i]);p_s_tb->FR[i] = 0;
+	    brelse (p_s_tb->CFL[i]);p_s_tb->CFL[i] = 0;
+	    brelse (p_s_tb->CFR[i]);p_s_tb->CFR[i] = 0;
+	}
+
+	if (wait_tb_buffers_run) {
+	    for ( i = 0; i < MAX_FEB_SIZE; i++ ) { 
+		if ( p_s_tb->FEB[i] ) {
+		    reiserfs_restore_prepared_buffer(p_s_tb->tb_sb, 
+						     p_s_tb->FEB[i]) ;
+		}
+	    }
+	}
+	return n_ret_value;
+    }
+
+}
+
+
+/* Anatoly will probably forgive me renaming p_s_tb to tb. I just
+   wanted to make lines shorter */
+void unfix_nodes (struct tree_balance * tb)
+{
+    int	i;
+
+    /* Release path buffers. */
+    pathrelse_and_restore (tb->tb_sb, tb->tb_path);
+
+    /* brelse all resources collected for balancing */
+    for ( i = 0; i < MAX_HEIGHT; i++ ) {
+	reiserfs_restore_prepared_buffer (tb->tb_sb, tb->L[i]);
+	reiserfs_restore_prepared_buffer (tb->tb_sb, tb->R[i]);
+	reiserfs_restore_prepared_buffer (tb->tb_sb, tb->FL[i]);
+	reiserfs_restore_prepared_buffer (tb->tb_sb, tb->FR[i]);
+	reiserfs_restore_prepared_buffer (tb->tb_sb, tb->CFL[i]);
+	reiserfs_restore_prepared_buffer (tb->tb_sb, tb->CFR[i]);
+
+	brelse (tb->L[i]);
+	brelse (tb->R[i]);
+	brelse (tb->FL[i]);
+	brelse (tb->FR[i]);
+	brelse (tb->CFL[i]);
+	brelse (tb->CFR[i]);
+    }
+
+    /* deal with list of allocated (used and unused) nodes */
+    for ( i = 0; i < MAX_FEB_SIZE; i++ ) {
+	if ( tb->FEB[i] ) {
+	    unsigned long blocknr  = tb->FEB[i]->b_blocknr ;
+	    /* de-allocated block which was not used by balancing and
+               bforget about buffer for it */
+	    brelse (tb->FEB[i]);
+	    reiserfs_free_block (tb->transaction_handle, blocknr);
+	}
+	if (tb->used[i]) {
+	    /* release used as new nodes including a new root */
+	    brelse (tb->used[i]);
+	}
+    }
+
+    if (tb->vn_buf) 
+    reiserfs_kfree (tb->vn_buf, tb->vn_buf_size, tb->tb_sb);
+
+} 
+
+
+
diff --git a/fs/reiserfs/hashes.c b/fs/reiserfs/hashes.c
new file mode 100644
index 00000000000000..ed503a423da066
--- /dev/null
+++ b/fs/reiserfs/hashes.c
@@ -0,0 +1,223 @@
+
+/*
+ * Keyed 32-bit hash function using TEA in a Davis-Meyer function
+ *   H0 = Key
+ *   Hi = E Mi(Hi-1) + Hi-1
+ *
+ * (see Applied Cryptography, 2nd edition, p448).
+ *
+ * Jeremy Fitzhardinge <jeremy@zip.com.au> 1998
+ * 
+ * Jeremy has agreed to the contents of reiserfs/README. -Hans
+ * Yura's function is added (04/07/2000)
+ */
+
+//
+// keyed_hash
+// yura_hash
+// r5_hash
+//
+
+#include <linux/kernel.h>	/* for printk() as called by BUG() */
+#include <asm/types.h>
+#include <asm/page.h>
+
+
+
+#define DELTA 0x9E3779B9
+#define FULLROUNDS 10		/* 32 is overkill, 16 is strong crypto */
+#define PARTROUNDS 6		/* 6 gets complete mixing */
+
+/* a, b, c, d - data; h0, h1 - accumulated hash */
+#define TEACORE(rounds)							\
+	do {								\
+		u32 sum = 0;						\
+		int n = rounds;						\
+		u32 b0, b1;						\
+									\
+		b0 = h0;						\
+		b1 = h1;						\
+									\
+		do							\
+		{							\
+			sum += DELTA;					\
+			b0 += ((b1 << 4)+a) ^ (b1+sum) ^ ((b1 >> 5)+b);	\
+			b1 += ((b0 << 4)+c) ^ (b0+sum) ^ ((b0 >> 5)+d);	\
+		} while(--n);						\
+									\
+		h0 += b0;						\
+		h1 += b1;						\
+	} while(0)
+
+
+u32 keyed_hash(const signed char *msg, int len)
+{
+	u32 k[] = { 0x9464a485, 0x542e1a94, 0x3e846bff, 0xb75bcfc3}; 
+
+	u32 h0 = k[0], h1 = k[1];
+	u32 a, b, c, d;
+	u32 pad;
+	int i;
+ 
+	//	assert(len >= 0 && len < 256);
+
+	pad = (u32)len | ((u32)len << 8);
+	pad |= pad << 16;
+
+	while(len >= 16)
+	{
+		a = (u32)msg[ 0]      |
+		    (u32)msg[ 1] << 8 |
+		    (u32)msg[ 2] << 16|
+		    (u32)msg[ 3] << 24;
+		b = (u32)msg[ 4]      |
+		    (u32)msg[ 5] << 8 |
+		    (u32)msg[ 6] << 16|
+		    (u32)msg[ 7] << 24;
+		c = (u32)msg[ 8]      |
+		    (u32)msg[ 9] << 8 |
+		    (u32)msg[10] << 16|
+		    (u32)msg[11] << 24;
+		d = (u32)msg[12]      |
+		    (u32)msg[13] << 8 |
+		    (u32)msg[14] << 16|
+		    (u32)msg[15] << 24;
+		
+		TEACORE(PARTROUNDS);
+
+		len -= 16;
+		msg += 16;
+	}
+
+	if (len >= 12)
+	{
+	    	//assert(len < 16);
+		if (len >= 16)
+		    BUG();
+
+		a = (u32)msg[ 0]      |
+		    (u32)msg[ 1] << 8 |
+		    (u32)msg[ 2] << 16|
+		    (u32)msg[ 3] << 24;
+		b = (u32)msg[ 4]      |
+		    (u32)msg[ 5] << 8 |
+		    (u32)msg[ 6] << 16|
+		    (u32)msg[ 7] << 24;
+		c = (u32)msg[ 8]      |
+		    (u32)msg[ 9] << 8 |
+		    (u32)msg[10] << 16|
+		    (u32)msg[11] << 24;
+
+		d = pad;
+		for(i = 12; i < len; i++)
+		{
+			d <<= 8;
+			d |= msg[i];
+		}
+	}
+	else if (len >= 8)
+	{
+	    	//assert(len < 12);
+		if (len >= 12)
+		    BUG();
+		a = (u32)msg[ 0]      |
+		    (u32)msg[ 1] << 8 |
+		    (u32)msg[ 2] << 16|
+		    (u32)msg[ 3] << 24;
+		b = (u32)msg[ 4]      |
+		    (u32)msg[ 5] << 8 |
+		    (u32)msg[ 6] << 16|
+		    (u32)msg[ 7] << 24;
+
+		c = d = pad;
+		for(i = 8; i < len; i++)
+		{
+			c <<= 8;
+			c |= msg[i];
+		}
+	}
+	else if (len >= 4)
+	{
+	    	//assert(len < 8);
+		if (len >= 8)
+		    BUG();
+		a = (u32)msg[ 0]      |
+		    (u32)msg[ 1] << 8 |
+		    (u32)msg[ 2] << 16|
+		    (u32)msg[ 3] << 24;
+
+		b = c = d = pad;
+		for(i = 4; i < len; i++)
+		{
+			b <<= 8;
+			b |= msg[i];
+		}
+	}
+	else
+	{
+	    	//assert(len < 4);
+		if (len >= 4)
+		    BUG();
+		a = b = c = d = pad;
+		for(i = 0; i < len; i++)
+		{
+			a <<= 8;
+			a |= msg[i];
+		}
+	}
+
+	TEACORE(FULLROUNDS);
+
+/*	return 0;*/
+	return h0^h1;
+}
+
+/* What follows in this file is copyright 2000-2002 by Hans Reiser, and the
+ * licensing of what follows is governed by reiserfs/README */
+
+u32 yura_hash (const signed char *msg, int len)
+{
+    int j, pow;
+    u32 a, c;
+    int i;
+    
+    for (pow=1,i=1; i < len; i++) pow = pow * 10; 
+    
+    if (len == 1) 
+	a = msg[0]-48;
+    else
+	a = (msg[0] - 48) * pow;
+    
+    for (i=1; i < len; i++) {
+	c = msg[i] - 48; 
+	for (pow=1,j=i; j < len-1; j++) pow = pow * 10; 
+	a = a + c * pow;
+    }
+    
+    for (; i < 40; i++) {
+	c = '0' - 48; 
+	for (pow=1,j=i; j < len-1; j++) pow = pow * 10; 
+	a = a + c * pow;
+    }
+    
+    for (; i < 256; i++) {
+	c = i; 
+	for (pow=1,j=i; j < len-1; j++) pow = pow * 10; 
+	a = a + c * pow;
+    }
+    
+    a = a << 7;
+    return a;
+}
+
+u32 r5_hash (const signed char *msg, int len)
+{
+  u32 a=0;
+  while(*msg) { 
+    a += *msg << 4;
+    a += *msg >> 4;
+    a *= 11;
+    msg++;
+   } 
+  return a;
+}
diff --git a/fs/reiserfs/ibalance.c b/fs/reiserfs/ibalance.c
new file mode 100644
index 00000000000000..d217647f8f0662
--- /dev/null
+++ b/fs/reiserfs/ibalance.c
@@ -0,0 +1,1060 @@
+/*
+ * Copyright 2000-2002 by Hans Reiser, licensing governed by reiserfs/README
+ */
+
+#include <linux/config.h>
+#include <asm/uaccess.h>
+#include <linux/string.h>
+#include <linux/sched.h>
+#include <linux/reiserfs_fs.h>
+
+/* this is one and only function that is used outside (do_balance.c) */
+int	balance_internal (
+			  struct tree_balance * ,
+			  int,
+			  int,
+			  struct item_head * ,
+			  struct buffer_head ** 
+			  );
+
+/* modes of internal_shift_left, internal_shift_right and internal_insert_childs */
+#define INTERNAL_SHIFT_FROM_S_TO_L 0
+#define INTERNAL_SHIFT_FROM_R_TO_S 1
+#define INTERNAL_SHIFT_FROM_L_TO_S 2
+#define INTERNAL_SHIFT_FROM_S_TO_R 3
+#define INTERNAL_INSERT_TO_S 4
+#define INTERNAL_INSERT_TO_L 5
+#define INTERNAL_INSERT_TO_R 6
+
+static void	internal_define_dest_src_infos (
+						int shift_mode,
+						struct tree_balance * tb,
+						int h,
+						struct buffer_info * dest_bi,
+						struct buffer_info * src_bi,
+						int * d_key,
+						struct buffer_head ** cf
+						)
+{
+    memset (dest_bi, 0, sizeof (struct buffer_info));
+    memset (src_bi, 0, sizeof (struct buffer_info));
+    /* define dest, src, dest parent, dest position */
+    switch (shift_mode) {
+    case INTERNAL_SHIFT_FROM_S_TO_L:	/* used in internal_shift_left */
+	src_bi->tb = tb;
+	src_bi->bi_bh = PATH_H_PBUFFER (tb->tb_path, h);
+	src_bi->bi_parent = PATH_H_PPARENT (tb->tb_path, h);
+	src_bi->bi_position = PATH_H_POSITION (tb->tb_path, h + 1);
+	dest_bi->tb = tb;
+	dest_bi->bi_bh = tb->L[h];
+	dest_bi->bi_parent = tb->FL[h];
+	dest_bi->bi_position = get_left_neighbor_position (tb, h);
+	*d_key = tb->lkey[h];
+	*cf = tb->CFL[h];
+	break;
+    case INTERNAL_SHIFT_FROM_L_TO_S:
+	src_bi->tb = tb;
+	src_bi->bi_bh = tb->L[h];
+	src_bi->bi_parent = tb->FL[h];
+	src_bi->bi_position = get_left_neighbor_position (tb, h);
+	dest_bi->tb = tb;
+	dest_bi->bi_bh = PATH_H_PBUFFER (tb->tb_path, h);
+	dest_bi->bi_parent = PATH_H_PPARENT (tb->tb_path, h);
+	dest_bi->bi_position = PATH_H_POSITION (tb->tb_path, h + 1); /* dest position is analog of dest->b_item_order */
+	*d_key = tb->lkey[h];
+	*cf = tb->CFL[h];
+	break;
+      
+    case INTERNAL_SHIFT_FROM_R_TO_S:	/* used in internal_shift_left */
+	src_bi->tb = tb;
+	src_bi->bi_bh = tb->R[h];
+	src_bi->bi_parent = tb->FR[h];
+	src_bi->bi_position = get_right_neighbor_position (tb, h);
+	dest_bi->tb = tb;
+	dest_bi->bi_bh = PATH_H_PBUFFER (tb->tb_path, h);
+	dest_bi->bi_parent = PATH_H_PPARENT (tb->tb_path, h);
+	dest_bi->bi_position = PATH_H_POSITION (tb->tb_path, h + 1);
+	*d_key = tb->rkey[h];
+	*cf = tb->CFR[h];
+	break;
+
+    case INTERNAL_SHIFT_FROM_S_TO_R:
+	src_bi->tb = tb;
+	src_bi->bi_bh = PATH_H_PBUFFER (tb->tb_path, h);
+	src_bi->bi_parent = PATH_H_PPARENT (tb->tb_path, h);
+	src_bi->bi_position = PATH_H_POSITION (tb->tb_path, h + 1);
+	dest_bi->tb = tb;
+	dest_bi->bi_bh = tb->R[h];
+	dest_bi->bi_parent = tb->FR[h];
+	dest_bi->bi_position = get_right_neighbor_position (tb, h);
+	*d_key = tb->rkey[h];
+	*cf = tb->CFR[h];
+	break;
+
+    case INTERNAL_INSERT_TO_L:
+	dest_bi->tb = tb;
+	dest_bi->bi_bh = tb->L[h];
+	dest_bi->bi_parent = tb->FL[h];
+	dest_bi->bi_position = get_left_neighbor_position (tb, h);
+	break;
+	
+    case INTERNAL_INSERT_TO_S:
+	dest_bi->tb = tb;
+	dest_bi->bi_bh = PATH_H_PBUFFER (tb->tb_path, h);
+	dest_bi->bi_parent = PATH_H_PPARENT (tb->tb_path, h);
+	dest_bi->bi_position = PATH_H_POSITION (tb->tb_path, h + 1);
+	break;
+
+    case INTERNAL_INSERT_TO_R:
+	dest_bi->tb = tb;
+	dest_bi->bi_bh = tb->R[h];
+	dest_bi->bi_parent = tb->FR[h];
+	dest_bi->bi_position = get_right_neighbor_position (tb, h);
+	break;
+
+    default:
+	reiserfs_panic (tb->tb_sb, "internal_define_dest_src_infos: shift type is unknown (%d)", shift_mode);
+    }
+}
+
+
+
+/* Insert count node pointers into buffer cur before position to + 1.
+ * Insert count items into buffer cur before position to.
+ * Items and node pointers are specified by inserted and bh respectively.
+ */ 
+static void internal_insert_childs (struct buffer_info * cur_bi,
+				    int to, int count,
+				    struct item_head * inserted,
+				    struct buffer_head ** bh
+    )
+{
+    struct buffer_head * cur = cur_bi->bi_bh;
+    struct block_head * blkh;
+    int nr;
+    struct key * ih;
+    struct disk_child new_dc[2];
+    struct disk_child * dc;
+    int i;
+
+    if (count <= 0)
+	return;
+
+    blkh = B_BLK_HEAD(cur);
+    nr = blkh_nr_item(blkh);
+
+    RFALSE( count > 2,
+	    "too many children (%d) are to be inserted", count);
+    RFALSE( B_FREE_SPACE (cur) < count * (KEY_SIZE + DC_SIZE),
+	    "no enough free space (%d), needed %d bytes", 
+	    B_FREE_SPACE (cur), count * (KEY_SIZE + DC_SIZE));
+
+    /* prepare space for count disk_child */
+    dc = B_N_CHILD(cur,to+1);
+
+    memmove (dc + count, dc, (nr+1-(to+1)) * DC_SIZE);
+
+    /* copy to_be_insert disk children */
+    for (i = 0; i < count; i ++) {
+	put_dc_size( &(new_dc[i]), MAX_CHILD_SIZE(bh[i]) - B_FREE_SPACE(bh[i]));
+	put_dc_block_number( &(new_dc[i]), bh[i]->b_blocknr );
+    }
+    memcpy (dc, new_dc, DC_SIZE * count);
+
+  
+    /* prepare space for count items  */
+    ih = B_N_PDELIM_KEY (cur, ((to == -1) ? 0 : to));
+
+    memmove (ih + count, ih, (nr - to) * KEY_SIZE + (nr + 1 + count) * DC_SIZE);
+
+    /* copy item headers (keys) */
+    memcpy (ih, inserted, KEY_SIZE);
+    if ( count > 1 )
+	memcpy (ih + 1, inserted + 1, KEY_SIZE);
+
+    /* sizes, item number */
+    set_blkh_nr_item( blkh, blkh_nr_item(blkh) + count );
+    set_blkh_free_space( blkh,
+                        blkh_free_space(blkh) - count * (DC_SIZE + KEY_SIZE ) );
+
+    do_balance_mark_internal_dirty (cur_bi->tb, cur,0);
+
+    /*&&&&&&&&&&&&&&&&&&&&&&&&*/
+    check_internal (cur);
+    /*&&&&&&&&&&&&&&&&&&&&&&&&*/
+
+    if (cur_bi->bi_parent) {
+	struct disk_child *t_dc = B_N_CHILD (cur_bi->bi_parent,cur_bi->bi_position);
+	put_dc_size( t_dc, dc_size(t_dc) + (count * (DC_SIZE + KEY_SIZE)));
+	do_balance_mark_internal_dirty(cur_bi->tb, cur_bi->bi_parent, 0);
+
+	/*&&&&&&&&&&&&&&&&&&&&&&&&*/
+	check_internal (cur_bi->bi_parent);
+	/*&&&&&&&&&&&&&&&&&&&&&&&&*/   
+    }
+
+}
+
+
+/* Delete del_num items and node pointers from buffer cur starting from *
+ * the first_i'th item and first_p'th pointers respectively.		*/
+static void	internal_delete_pointers_items (
+						struct buffer_info * cur_bi,
+						int first_p, 
+						int first_i, 
+						int del_num
+						)
+{
+  struct buffer_head * cur = cur_bi->bi_bh;
+  int nr;
+  struct block_head * blkh;
+  struct key * key;
+  struct disk_child * dc;
+
+  RFALSE( cur == NULL, "buffer is 0");
+  RFALSE( del_num < 0,
+          "negative number of items (%d) can not be deleted", del_num);
+  RFALSE( first_p < 0 || first_p + del_num > B_NR_ITEMS (cur) + 1 || first_i < 0,
+          "first pointer order (%d) < 0 or "
+          "no so many pointers (%d), only (%d) or "
+          "first key order %d < 0", first_p, 
+          first_p + del_num, B_NR_ITEMS (cur) + 1, first_i);
+  if ( del_num == 0 )
+    return;
+
+  blkh = B_BLK_HEAD(cur);
+  nr = blkh_nr_item(blkh);
+
+  if ( first_p == 0 && del_num == nr + 1 ) {
+    RFALSE( first_i != 0, "1st deleted key must have order 0, not %d", first_i);
+    make_empty_node (cur_bi);
+    return;
+  }
+
+  RFALSE( first_i + del_num > B_NR_ITEMS (cur),
+          "first_i = %d del_num = %d "
+          "no so many keys (%d) in the node (%b)(%z)",
+          first_i, del_num, first_i + del_num, cur, cur);
+
+
+  /* deleting */
+  dc = B_N_CHILD (cur, first_p);
+
+  memmove (dc, dc + del_num, (nr + 1 - first_p - del_num) * DC_SIZE);
+  key = B_N_PDELIM_KEY (cur, first_i);
+  memmove (key, key + del_num, (nr - first_i - del_num) * KEY_SIZE + (nr + 1 - del_num) * DC_SIZE);
+
+
+  /* sizes, item number */
+  set_blkh_nr_item( blkh, blkh_nr_item(blkh) - del_num );
+  set_blkh_free_space( blkh,
+                    blkh_free_space(blkh) + (del_num * (KEY_SIZE + DC_SIZE) ) );
+
+  do_balance_mark_internal_dirty (cur_bi->tb, cur, 0);
+  /*&&&&&&&&&&&&&&&&&&&&&&&*/
+  check_internal (cur);
+  /*&&&&&&&&&&&&&&&&&&&&&&&*/
+ 
+  if (cur_bi->bi_parent) {
+    struct disk_child *t_dc;
+    t_dc = B_N_CHILD (cur_bi->bi_parent, cur_bi->bi_position);
+    put_dc_size( t_dc, dc_size(t_dc) - (del_num * (KEY_SIZE + DC_SIZE) ) );
+
+    do_balance_mark_internal_dirty (cur_bi->tb, cur_bi->bi_parent,0);
+    /*&&&&&&&&&&&&&&&&&&&&&&&&*/
+    check_internal (cur_bi->bi_parent);
+    /*&&&&&&&&&&&&&&&&&&&&&&&&*/   
+  }
+}
+
+
+/* delete n node pointers and items starting from given position */
+static void  internal_delete_childs (struct buffer_info * cur_bi, 
+				     int from, int n)
+{
+  int i_from;
+
+  i_from = (from == 0) ? from : from - 1;
+
+  /* delete n pointers starting from `from' position in CUR;
+     delete n keys starting from 'i_from' position in CUR;
+     */
+  internal_delete_pointers_items (cur_bi, from, i_from, n);
+}
+
+
+/* copy cpy_num node pointers and cpy_num - 1 items from buffer src to buffer dest
+* last_first == FIRST_TO_LAST means, that we copy first items from src to tail of dest
+ * last_first == LAST_TO_FIRST means, that we copy last items from src to head of dest 
+ */
+static void internal_copy_pointers_items (
+					  struct buffer_info * dest_bi,
+					  struct buffer_head * src,
+					  int last_first, int cpy_num
+					  )
+{
+  /* ATTENTION! Number of node pointers in DEST is equal to number of items in DEST *
+   * as delimiting key have already inserted to buffer dest.*/
+  struct buffer_head * dest = dest_bi->bi_bh;
+  int nr_dest, nr_src;
+  int dest_order, src_order;
+  struct block_head * blkh;
+  struct key * key;
+  struct disk_child * dc;
+
+  nr_src = B_NR_ITEMS (src);
+
+  RFALSE( dest == NULL || src == NULL, 
+	  "src (%p) or dest (%p) buffer is 0", src, dest);
+  RFALSE( last_first != FIRST_TO_LAST && last_first != LAST_TO_FIRST,
+	  "invalid last_first parameter (%d)", last_first);
+  RFALSE( nr_src < cpy_num - 1, 
+	  "no so many items (%d) in src (%d)", cpy_num, nr_src);
+  RFALSE( cpy_num < 0, "cpy_num less than 0 (%d)", cpy_num);
+  RFALSE( cpy_num - 1 + B_NR_ITEMS(dest) > (int)MAX_NR_KEY(dest),
+	  "cpy_num (%d) + item number in dest (%d) can not be > MAX_NR_KEY(%d)",
+	  cpy_num, B_NR_ITEMS(dest), MAX_NR_KEY(dest));
+
+  if ( cpy_num == 0 )
+    return;
+
+	/* coping */
+  blkh = B_BLK_HEAD(dest);
+  nr_dest = blkh_nr_item(blkh);
+
+  /*dest_order = (last_first == LAST_TO_FIRST) ? 0 : nr_dest;*/
+  /*src_order = (last_first == LAST_TO_FIRST) ? (nr_src - cpy_num + 1) : 0;*/
+  (last_first == LAST_TO_FIRST) ?	(dest_order = 0, src_order = nr_src - cpy_num + 1) :
+    (dest_order = nr_dest, src_order = 0);
+
+  /* prepare space for cpy_num pointers */
+  dc = B_N_CHILD (dest, dest_order);
+
+  memmove (dc + cpy_num, dc, (nr_dest - dest_order) * DC_SIZE);
+
+	/* insert pointers */
+  memcpy (dc, B_N_CHILD (src, src_order), DC_SIZE * cpy_num);
+
+
+  /* prepare space for cpy_num - 1 item headers */
+  key = B_N_PDELIM_KEY(dest, dest_order);
+  memmove (key + cpy_num - 1, key,
+	   KEY_SIZE * (nr_dest - dest_order) + DC_SIZE * (nr_dest + cpy_num));
+
+
+  /* insert headers */
+  memcpy (key, B_N_PDELIM_KEY (src, src_order), KEY_SIZE * (cpy_num - 1));
+
+  /* sizes, item number */
+  set_blkh_nr_item( blkh, blkh_nr_item(blkh) + (cpy_num - 1 ) );
+  set_blkh_free_space( blkh,
+      blkh_free_space(blkh) - (KEY_SIZE * (cpy_num - 1) + DC_SIZE * cpy_num ) );
+
+  do_balance_mark_internal_dirty (dest_bi->tb, dest, 0);
+
+  /*&&&&&&&&&&&&&&&&&&&&&&&&*/
+  check_internal (dest);
+  /*&&&&&&&&&&&&&&&&&&&&&&&&*/
+
+  if (dest_bi->bi_parent) {
+    struct disk_child *t_dc;
+    t_dc = B_N_CHILD(dest_bi->bi_parent,dest_bi->bi_position);
+    put_dc_size( t_dc, dc_size(t_dc) + (KEY_SIZE * (cpy_num - 1) + DC_SIZE * cpy_num) );
+
+    do_balance_mark_internal_dirty (dest_bi->tb, dest_bi->bi_parent,0);
+    /*&&&&&&&&&&&&&&&&&&&&&&&&*/
+    check_internal (dest_bi->bi_parent);
+    /*&&&&&&&&&&&&&&&&&&&&&&&&*/   
+  }
+
+}
+
+
+/* Copy cpy_num node pointers and cpy_num - 1 items from buffer src to buffer dest.
+ * Delete cpy_num - del_par items and node pointers from buffer src.
+ * last_first == FIRST_TO_LAST means, that we copy/delete first items from src.
+ * last_first == LAST_TO_FIRST means, that we copy/delete last items from src.
+ */
+static void internal_move_pointers_items (struct buffer_info * dest_bi, 
+					  struct buffer_info * src_bi, 
+					  int last_first, int cpy_num, int del_par)
+{
+    int first_pointer;
+    int first_item;
+    
+    internal_copy_pointers_items (dest_bi, src_bi->bi_bh, last_first, cpy_num);
+
+    if (last_first == FIRST_TO_LAST) {	/* shift_left occurs */
+	first_pointer = 0;
+	first_item = 0;
+	/* delete cpy_num - del_par pointers and keys starting for pointers with first_pointer, 
+	   for key - with first_item */
+	internal_delete_pointers_items (src_bi, first_pointer, first_item, cpy_num - del_par);
+    } else {			/* shift_right occurs */
+	int i, j;
+
+	i = ( cpy_num - del_par == ( j = B_NR_ITEMS(src_bi->bi_bh)) + 1 ) ? 0 : j - cpy_num + del_par;
+
+	internal_delete_pointers_items (src_bi, j + 1 - cpy_num + del_par, i, cpy_num - del_par);
+    }
+}
+
+/* Insert n_src'th key of buffer src before n_dest'th key of buffer dest. */
+static void internal_insert_key (struct buffer_info * dest_bi, 
+				 int dest_position_before,                 /* insert key before key with n_dest number */
+				 struct buffer_head * src, 
+				 int src_position)
+{
+    struct buffer_head * dest = dest_bi->bi_bh;
+    int nr;
+    struct block_head * blkh;
+    struct key * key;
+
+    RFALSE( dest == NULL || src == NULL,
+	    "source(%p) or dest(%p) buffer is 0", src, dest);
+    RFALSE( dest_position_before < 0 || src_position < 0,
+	    "source(%d) or dest(%d) key number less than 0", 
+	    src_position, dest_position_before);
+    RFALSE( dest_position_before > B_NR_ITEMS (dest) || 
+	    src_position >= B_NR_ITEMS(src),
+	    "invalid position in dest (%d (key number %d)) or in src (%d (key number %d))",
+	    dest_position_before, B_NR_ITEMS (dest), 
+	    src_position, B_NR_ITEMS(src));
+    RFALSE( B_FREE_SPACE (dest) < KEY_SIZE,
+	    "no enough free space (%d) in dest buffer", B_FREE_SPACE (dest));
+
+    blkh = B_BLK_HEAD(dest);
+    nr = blkh_nr_item(blkh);
+
+    /* prepare space for inserting key */
+    key = B_N_PDELIM_KEY (dest, dest_position_before);
+    memmove (key + 1, key, (nr - dest_position_before) * KEY_SIZE + (nr + 1) * DC_SIZE);
+
+    /* insert key */
+    memcpy (key, B_N_PDELIM_KEY(src, src_position), KEY_SIZE);
+
+    /* Change dirt, free space, item number fields. */
+
+    set_blkh_nr_item( blkh, blkh_nr_item(blkh) + 1 );
+    set_blkh_free_space( blkh, blkh_free_space(blkh) - KEY_SIZE );
+
+    do_balance_mark_internal_dirty (dest_bi->tb, dest, 0);
+
+    if (dest_bi->bi_parent) {
+	struct disk_child *t_dc;
+	t_dc = B_N_CHILD(dest_bi->bi_parent,dest_bi->bi_position);
+	put_dc_size( t_dc, dc_size(t_dc) + KEY_SIZE );
+
+	do_balance_mark_internal_dirty (dest_bi->tb, dest_bi->bi_parent,0);
+    }
+}
+
+
+
+/* Insert d_key'th (delimiting) key from buffer cfl to tail of dest. 
+ * Copy pointer_amount node pointers and pointer_amount - 1 items from buffer src to buffer dest.
+ * Replace  d_key'th key in buffer cfl.
+ * Delete pointer_amount items and node pointers from buffer src.
+ */
+/* this can be invoked both to shift from S to L and from R to S */
+static void	internal_shift_left (
+				     int mode,	/* INTERNAL_FROM_S_TO_L | INTERNAL_FROM_R_TO_S */
+				     struct tree_balance * tb,
+				     int h,
+				     int pointer_amount
+				     )
+{
+  struct buffer_info dest_bi, src_bi;
+  struct buffer_head * cf;
+  int d_key_position;
+
+  internal_define_dest_src_infos (mode, tb, h, &dest_bi, &src_bi, &d_key_position, &cf);
+
+  /*printk("pointer_amount = %d\n",pointer_amount);*/
+
+  if (pointer_amount) {
+    /* insert delimiting key from common father of dest and src to node dest into position B_NR_ITEM(dest) */
+    internal_insert_key (&dest_bi, B_NR_ITEMS(dest_bi.bi_bh), cf, d_key_position);
+
+    if (B_NR_ITEMS(src_bi.bi_bh) == pointer_amount - 1) {
+      if (src_bi.bi_position/*src->b_item_order*/ == 0)
+	replace_key (tb, cf, d_key_position, src_bi.bi_parent/*src->b_parent*/, 0);
+    } else
+      replace_key (tb, cf, d_key_position, src_bi.bi_bh, pointer_amount - 1);
+  }
+  /* last parameter is del_parameter */
+  internal_move_pointers_items (&dest_bi, &src_bi, FIRST_TO_LAST, pointer_amount, 0);
+
+}
+
+/* Insert delimiting key to L[h].
+ * Copy n node pointers and n - 1 items from buffer S[h] to L[h].
+ * Delete n - 1 items and node pointers from buffer S[h].
+ */
+/* it always shifts from S[h] to L[h] */
+static void	internal_shift1_left (
+				      struct tree_balance * tb, 
+				      int h, 
+				      int pointer_amount
+				      )
+{
+  struct buffer_info dest_bi, src_bi;
+  struct buffer_head * cf;
+  int d_key_position;
+
+  internal_define_dest_src_infos (INTERNAL_SHIFT_FROM_S_TO_L, tb, h, &dest_bi, &src_bi, &d_key_position, &cf);
+
+  if ( pointer_amount > 0 ) /* insert lkey[h]-th key  from CFL[h] to left neighbor L[h] */
+    internal_insert_key (&dest_bi, B_NR_ITEMS(dest_bi.bi_bh), cf, d_key_position);
+  /*		internal_insert_key (tb->L[h], B_NR_ITEM(tb->L[h]), tb->CFL[h], tb->lkey[h]);*/
+
+  /* last parameter is del_parameter */
+  internal_move_pointers_items (&dest_bi, &src_bi, FIRST_TO_LAST, pointer_amount, 1);
+  /*	internal_move_pointers_items (tb->L[h], tb->S[h], FIRST_TO_LAST, pointer_amount, 1);*/
+}
+
+
+/* Insert d_key'th (delimiting) key from buffer cfr to head of dest. 
+ * Copy n node pointers and n - 1 items from buffer src to buffer dest.
+ * Replace  d_key'th key in buffer cfr.
+ * Delete n items and node pointers from buffer src.
+ */
+static void internal_shift_right (
+				  int mode,	/* INTERNAL_FROM_S_TO_R | INTERNAL_FROM_L_TO_S */
+				  struct tree_balance * tb,
+				  int h,
+				  int pointer_amount
+				  )
+{
+  struct buffer_info dest_bi, src_bi;
+  struct buffer_head * cf;
+  int d_key_position;
+  int nr;
+
+
+  internal_define_dest_src_infos (mode, tb, h, &dest_bi, &src_bi, &d_key_position, &cf);
+
+  nr = B_NR_ITEMS (src_bi.bi_bh);
+
+  if (pointer_amount > 0) {
+    /* insert delimiting key from common father of dest and src to dest node into position 0 */
+    internal_insert_key (&dest_bi, 0, cf, d_key_position);
+    if (nr == pointer_amount - 1) {
+	 RFALSE( src_bi.bi_bh != PATH_H_PBUFFER (tb->tb_path, h)/*tb->S[h]*/ || 
+		 dest_bi.bi_bh != tb->R[h],
+		 "src (%p) must be == tb->S[h](%p) when it disappears",
+		 src_bi.bi_bh, PATH_H_PBUFFER (tb->tb_path, h));
+      /* when S[h] disappers replace left delemiting key as well */
+      if (tb->CFL[h])
+	replace_key (tb, cf, d_key_position, tb->CFL[h], tb->lkey[h]);
+    } else
+      replace_key (tb, cf, d_key_position, src_bi.bi_bh, nr - pointer_amount);
+  }      
+
+  /* last parameter is del_parameter */
+  internal_move_pointers_items (&dest_bi, &src_bi, LAST_TO_FIRST, pointer_amount, 0);
+}
+
+/* Insert delimiting key to R[h].
+ * Copy n node pointers and n - 1 items from buffer S[h] to R[h].
+ * Delete n - 1 items and node pointers from buffer S[h].
+ */
+/* it always shift from S[h] to R[h] */
+static void	internal_shift1_right (
+				       struct tree_balance * tb, 
+				       int h, 
+				       int pointer_amount
+				       )
+{
+  struct buffer_info dest_bi, src_bi;
+  struct buffer_head * cf;
+  int d_key_position;
+
+  internal_define_dest_src_infos (INTERNAL_SHIFT_FROM_S_TO_R, tb, h, &dest_bi, &src_bi, &d_key_position, &cf);
+
+  if (pointer_amount > 0) /* insert rkey from CFR[h] to right neighbor R[h] */
+    internal_insert_key (&dest_bi, 0, cf, d_key_position);
+  /*		internal_insert_key (tb->R[h], 0, tb->CFR[h], tb->rkey[h]);*/
+	
+  /* last parameter is del_parameter */
+  internal_move_pointers_items (&dest_bi, &src_bi, LAST_TO_FIRST, pointer_amount, 1);
+  /*	internal_move_pointers_items (tb->R[h], tb->S[h], LAST_TO_FIRST, pointer_amount, 1);*/
+}
+
+
+/* Delete insert_num node pointers together with their left items
+ * and balance current node.*/
+static void balance_internal_when_delete (struct tree_balance * tb, 
+					  int h, int child_pos)
+{
+    int insert_num;
+    int n;
+    struct buffer_head * tbSh = PATH_H_PBUFFER (tb->tb_path, h);
+    struct buffer_info bi;
+
+    insert_num = tb->insert_size[h] / ((int)(DC_SIZE + KEY_SIZE));
+  
+    /* delete child-node-pointer(s) together with their left item(s) */
+    bi.tb = tb;
+    bi.bi_bh = tbSh;
+    bi.bi_parent = PATH_H_PPARENT (tb->tb_path, h);
+    bi.bi_position = PATH_H_POSITION (tb->tb_path, h + 1);
+
+    internal_delete_childs (&bi, child_pos, -insert_num);
+
+    RFALSE( tb->blknum[h] > 1,
+	    "tb->blknum[%d]=%d when insert_size < 0", h, tb->blknum[h]);
+
+    n = B_NR_ITEMS(tbSh);
+
+    if ( tb->lnum[h] == 0 && tb->rnum[h] == 0 ) {
+	if ( tb->blknum[h] == 0 ) {
+	    /* node S[h] (root of the tree) is empty now */
+	    struct buffer_head *new_root;
+
+	    RFALSE( n || B_FREE_SPACE (tbSh) != MAX_CHILD_SIZE(tbSh) - DC_SIZE,
+		    "buffer must have only 0 keys (%d)", n);
+	    RFALSE( bi.bi_parent, "root has parent (%p)", bi.bi_parent);
+		
+	    /* choose a new root */
+	    if ( ! tb->L[h-1] || ! B_NR_ITEMS(tb->L[h-1]) )
+		new_root = tb->R[h-1];
+	    else
+		new_root = tb->L[h-1];
+	    /* switch super block's tree root block number to the new value */
+            PUT_SB_ROOT_BLOCK( tb->tb_sb, new_root->b_blocknr );
+	    //tb->tb_sb->u.reiserfs_sb.s_rs->s_tree_height --;
+            PUT_SB_TREE_HEIGHT( tb->tb_sb, SB_TREE_HEIGHT(tb->tb_sb) - 1 );
+
+	    do_balance_mark_sb_dirty (tb, tb->tb_sb->u.reiserfs_sb.s_sbh, 1);
+	    /*&&&&&&&&&&&&&&&&&&&&&&*/
+	    if (h > 1)
+		/* use check_internal if new root is an internal node */
+		check_internal (new_root);
+	    /*&&&&&&&&&&&&&&&&&&&&&&*/
+	    tb->tb_sb->s_dirt = 1;
+
+	    /* do what is needed for buffer thrown from tree */
+	    reiserfs_invalidate_buffer(tb, tbSh);
+	    return;
+	}
+	return;
+    }
+
+    if ( tb->L[h] && tb->lnum[h] == -B_NR_ITEMS(tb->L[h]) - 1 ) { /* join S[h] with L[h] */
+
+	RFALSE( tb->rnum[h] != 0,
+		"invalid tb->rnum[%d]==%d when joining S[h] with L[h]",
+		h, tb->rnum[h]);
+
+	internal_shift_left (INTERNAL_SHIFT_FROM_S_TO_L, tb, h, n + 1);
+	reiserfs_invalidate_buffer(tb, tbSh);
+
+	return;
+    }
+
+    if ( tb->R[h] &&  tb->rnum[h] == -B_NR_ITEMS(tb->R[h]) - 1 ) { /* join S[h] with R[h] */
+	RFALSE( tb->lnum[h] != 0,
+		"invalid tb->lnum[%d]==%d when joining S[h] with R[h]",
+		h, tb->lnum[h]);
+
+	internal_shift_right (INTERNAL_SHIFT_FROM_S_TO_R, tb, h, n + 1);
+
+	reiserfs_invalidate_buffer(tb,tbSh);
+	return;
+    }
+
+    if ( tb->lnum[h] < 0 ) { /* borrow from left neighbor L[h] */
+	RFALSE( tb->rnum[h] != 0,
+		"wrong tb->rnum[%d]==%d when borrow from L[h]", h, tb->rnum[h]);
+	/*internal_shift_right (tb, h, tb->L[h], tb->CFL[h], tb->lkey[h], tb->S[h], -tb->lnum[h]);*/
+	internal_shift_right (INTERNAL_SHIFT_FROM_L_TO_S, tb, h, -tb->lnum[h]);
+	return;
+    }
+
+    if ( tb->rnum[h] < 0 ) { /* borrow from right neighbor R[h] */
+	 RFALSE( tb->lnum[h] != 0,
+		 "invalid tb->lnum[%d]==%d when borrow from R[h]", 
+		 h, tb->lnum[h]);
+	internal_shift_left (INTERNAL_SHIFT_FROM_R_TO_S, tb, h, -tb->rnum[h]);/*tb->S[h], tb->CFR[h], tb->rkey[h], tb->R[h], -tb->rnum[h]);*/
+	return;
+    }
+
+    if ( tb->lnum[h] > 0 ) { /* split S[h] into two parts and put them into neighbors */
+	RFALSE( tb->rnum[h] == 0 || tb->lnum[h] + tb->rnum[h] != n + 1,
+		"invalid tb->lnum[%d]==%d or tb->rnum[%d]==%d when S[h](item number == %d) is split between them",
+		h, tb->lnum[h], h, tb->rnum[h], n);
+
+	internal_shift_left (INTERNAL_SHIFT_FROM_S_TO_L, tb, h, tb->lnum[h]);/*tb->L[h], tb->CFL[h], tb->lkey[h], tb->S[h], tb->lnum[h]);*/
+	internal_shift_right (INTERNAL_SHIFT_FROM_S_TO_R, tb, h, tb->rnum[h]);
+
+	reiserfs_invalidate_buffer (tb, tbSh);
+
+	return;
+    }
+    reiserfs_panic (tb->tb_sb, "balance_internal_when_delete: unexpected tb->lnum[%d]==%d or tb->rnum[%d]==%d",
+		    h, tb->lnum[h], h, tb->rnum[h]);
+}
+
+
+/* Replace delimiting key of buffers L[h] and S[h] by the given key.*/
+void	replace_lkey (
+		      struct tree_balance * tb,
+		      int h,
+		      struct item_head * key
+		      )
+{
+   RFALSE( tb->L[h] == NULL || tb->CFL[h] == NULL,
+	   "L[h](%p) and CFL[h](%p) must exist in replace_lkey", 
+	   tb->L[h], tb->CFL[h]);
+
+  if (B_NR_ITEMS(PATH_H_PBUFFER(tb->tb_path, h)) == 0)
+    return;
+
+  memcpy (B_N_PDELIM_KEY(tb->CFL[h],tb->lkey[h]), key, KEY_SIZE);
+
+  do_balance_mark_internal_dirty (tb, tb->CFL[h],0);
+}
+
+
+/* Replace delimiting key of buffers S[h] and R[h] by the given key.*/
+void	replace_rkey (
+		      struct tree_balance * tb,
+		      int h,
+		      struct item_head * key
+		      )
+{
+  RFALSE( tb->R[h] == NULL || tb->CFR[h] == NULL,
+	  "R[h](%p) and CFR[h](%p) must exist in replace_rkey", 
+	  tb->R[h], tb->CFR[h]);
+  RFALSE( B_NR_ITEMS(tb->R[h]) == 0,
+	  "R[h] can not be empty if it exists (item number=%d)", 
+	  B_NR_ITEMS(tb->R[h]));
+
+  memcpy (B_N_PDELIM_KEY(tb->CFR[h],tb->rkey[h]), key, KEY_SIZE);
+
+  do_balance_mark_internal_dirty (tb, tb->CFR[h], 0);
+}
+
+
+int balance_internal (struct tree_balance * tb,			/* tree_balance structure 		*/
+		      int h,					/* level of the tree 			*/
+		      int child_pos,
+		      struct item_head * insert_key,		/* key for insertion on higher level   	*/
+		      struct buffer_head ** insert_ptr	/* node for insertion on higher level*/
+    )
+    /* if inserting/pasting
+       {
+       child_pos is the position of the node-pointer in S[h] that	 *
+       pointed to S[h-1] before balancing of the h-1 level;		 *
+       this means that new pointers and items must be inserted AFTER *
+       child_pos
+       }
+       else 
+       {
+   it is the position of the leftmost pointer that must be deleted (together with
+   its corresponding key to the left of the pointer)
+   as a result of the previous level's balancing.
+   }
+*/
+{
+    struct buffer_head * tbSh = PATH_H_PBUFFER (tb->tb_path, h);
+    struct buffer_info bi;
+    int order;		/* we return this: it is 0 if there is no S[h], else it is tb->S[h]->b_item_order */
+    int insert_num, n, k;
+    struct buffer_head * S_new;
+    struct item_head new_insert_key;
+    struct buffer_head * new_insert_ptr = NULL;
+    struct item_head * new_insert_key_addr = insert_key;
+
+    RFALSE( h < 1, "h (%d) can not be < 1 on internal level", h);
+
+    PROC_INFO_INC( tb -> tb_sb, balance_at[ h ] );
+
+    order = ( tbSh ) ? PATH_H_POSITION (tb->tb_path, h + 1)/*tb->S[h]->b_item_order*/ : 0;
+
+  /* Using insert_size[h] calculate the number insert_num of items
+     that must be inserted to or deleted from S[h]. */
+    insert_num = tb->insert_size[h]/((int)(KEY_SIZE + DC_SIZE));
+
+    /* Check whether insert_num is proper **/
+    RFALSE( insert_num < -2  ||  insert_num > 2,
+	    "incorrect number of items inserted to the internal node (%d)", 
+	    insert_num);
+    RFALSE( h > 1  && (insert_num > 1 || insert_num < -1),
+	    "incorrect number of items (%d) inserted to the internal node on a level (h=%d) higher than last internal level", 
+	    insert_num, h);
+
+    /* Make balance in case insert_num < 0 */
+    if ( insert_num < 0 ) {
+	balance_internal_when_delete (tb, h, child_pos);
+	return order;
+    }
+ 
+    k = 0;
+    if ( tb->lnum[h] > 0 ) {
+	/* shift lnum[h] items from S[h] to the left neighbor L[h].
+	   check how many of new items fall into L[h] or CFL[h] after
+	   shifting */
+	n = B_NR_ITEMS (tb->L[h]); /* number of items in L[h] */
+	if ( tb->lnum[h] <= child_pos ) {
+	    /* new items don't fall into L[h] or CFL[h] */
+	    internal_shift_left (INTERNAL_SHIFT_FROM_S_TO_L, tb, h, tb->lnum[h]);
+	    /*internal_shift_left (tb->L[h],tb->CFL[h],tb->lkey[h],tbSh,tb->lnum[h]);*/
+	    child_pos -= tb->lnum[h];
+	} else if ( tb->lnum[h] > child_pos + insert_num ) {
+	    /* all new items fall into L[h] */
+	    internal_shift_left (INTERNAL_SHIFT_FROM_S_TO_L, tb, h, tb->lnum[h] - insert_num);
+	    /*			internal_shift_left(tb->L[h],tb->CFL[h],tb->lkey[h],tbSh,
+				tb->lnum[h]-insert_num);
+	    */
+	    /* insert insert_num keys and node-pointers into L[h] */
+	    bi.tb = tb;
+	    bi.bi_bh = tb->L[h];
+	    bi.bi_parent = tb->FL[h];
+	    bi.bi_position = get_left_neighbor_position (tb, h);
+	    internal_insert_childs (&bi,/*tb->L[h], tb->S[h-1]->b_next*/ n + child_pos + 1,
+				    insert_num,insert_key,insert_ptr);
+
+	    insert_num = 0; 
+	} else {
+	    struct disk_child * dc;
+
+	    /* some items fall into L[h] or CFL[h], but some don't fall */
+	    internal_shift1_left(tb,h,child_pos+1);
+	    /* calculate number of new items that fall into L[h] */
+	    k = tb->lnum[h] - child_pos - 1;
+	    bi.tb = tb;
+	    bi.bi_bh = tb->L[h];
+	    bi.bi_parent = tb->FL[h];
+	    bi.bi_position = get_left_neighbor_position (tb, h);
+	    internal_insert_childs (&bi,/*tb->L[h], tb->S[h-1]->b_next,*/ n + child_pos + 1,k,
+				    insert_key,insert_ptr);
+
+	    replace_lkey(tb,h,insert_key + k);
+
+	    /* replace the first node-ptr in S[h] by node-ptr to insert_ptr[k] */
+	    dc = B_N_CHILD(tbSh, 0);
+	    put_dc_size( dc, MAX_CHILD_SIZE(insert_ptr[k]) - B_FREE_SPACE (insert_ptr[k]));
+	    put_dc_block_number( dc, insert_ptr[k]->b_blocknr );
+
+	    do_balance_mark_internal_dirty (tb, tbSh, 0);
+
+	    k++;
+	    insert_key += k;
+	    insert_ptr += k;
+	    insert_num -= k;
+	    child_pos = 0;
+	}
+    }	/* tb->lnum[h] > 0 */
+
+    if ( tb->rnum[h] > 0 ) {
+	/*shift rnum[h] items from S[h] to the right neighbor R[h]*/
+	/* check how many of new items fall into R or CFR after shifting */
+	n = B_NR_ITEMS (tbSh); /* number of items in S[h] */
+	if ( n - tb->rnum[h] >= child_pos )
+	    /* new items fall into S[h] */
+	    /*internal_shift_right(tb,h,tbSh,tb->CFR[h],tb->rkey[h],tb->R[h],tb->rnum[h]);*/
+	    internal_shift_right (INTERNAL_SHIFT_FROM_S_TO_R, tb, h, tb->rnum[h]);
+	else
+	    if ( n + insert_num - tb->rnum[h] < child_pos )
+	    {
+		/* all new items fall into R[h] */
+		/*internal_shift_right(tb,h,tbSh,tb->CFR[h],tb->rkey[h],tb->R[h],
+	    tb->rnum[h] - insert_num);*/
+		internal_shift_right (INTERNAL_SHIFT_FROM_S_TO_R, tb, h, tb->rnum[h] - insert_num);
+
+		/* insert insert_num keys and node-pointers into R[h] */
+		bi.tb = tb;
+		bi.bi_bh = tb->R[h];
+		bi.bi_parent = tb->FR[h];
+		bi.bi_position = get_right_neighbor_position (tb, h);
+		internal_insert_childs (&bi, /*tb->R[h],tb->S[h-1]->b_next*/ child_pos - n - insert_num + tb->rnum[h] - 1,
+					insert_num,insert_key,insert_ptr);
+		insert_num = 0;
+	    }
+	    else
+	    {
+		struct disk_child * dc;
+
+		/* one of the items falls into CFR[h] */
+		internal_shift1_right(tb,h,n - child_pos + 1);
+		/* calculate number of new items that fall into R[h] */
+		k = tb->rnum[h] - n + child_pos - 1;
+		bi.tb = tb;
+		bi.bi_bh = tb->R[h];
+		bi.bi_parent = tb->FR[h];
+		bi.bi_position = get_right_neighbor_position (tb, h);
+		internal_insert_childs (&bi, /*tb->R[h], tb->R[h]->b_child,*/ 0, k, insert_key + 1, insert_ptr + 1);
+
+		replace_rkey(tb,h,insert_key + insert_num - k - 1);
+
+		/* replace the first node-ptr in R[h] by node-ptr insert_ptr[insert_num-k-1]*/
+		dc = B_N_CHILD(tb->R[h], 0);
+		put_dc_size( dc, MAX_CHILD_SIZE(insert_ptr[insert_num-k-1]) -
+    				    B_FREE_SPACE (insert_ptr[insert_num-k-1]));
+		put_dc_block_number( dc, insert_ptr[insert_num-k-1]->b_blocknr );
+
+		do_balance_mark_internal_dirty (tb, tb->R[h],0);
+
+		insert_num -= (k + 1);
+	    }
+    }
+
+    /** Fill new node that appears instead of S[h] **/
+    RFALSE( tb->blknum[h] > 2, "blknum can not be > 2 for internal level");
+    RFALSE( tb->blknum[h] < 0, "blknum can not be < 0");
+
+    if ( ! tb->blknum[h] )
+    { /* node S[h] is empty now */
+	RFALSE( ! tbSh, "S[h] is equal NULL");
+
+	/* do what is needed for buffer thrown from tree */
+	reiserfs_invalidate_buffer(tb,tbSh);
+	return order;
+    }
+
+    if ( ! tbSh ) {
+	/* create new root */
+	struct disk_child  * dc;
+	struct buffer_head * tbSh_1 = PATH_H_PBUFFER (tb->tb_path, h - 1);
+        struct block_head *  blkh;
+
+
+	if ( tb->blknum[h] != 1 )
+	    reiserfs_panic(0, "balance_internal: One new node required for creating the new root");
+	/* S[h] = empty buffer from the list FEB. */
+	tbSh = get_FEB (tb);
+        blkh = B_BLK_HEAD(tbSh);
+        set_blkh_level( blkh, h + 1 );
+
+	/* Put the unique node-pointer to S[h] that points to S[h-1]. */
+
+	dc = B_N_CHILD(tbSh, 0);
+	put_dc_block_number( dc, tbSh_1->b_blocknr );
+	put_dc_size( dc, (MAX_CHILD_SIZE (tbSh_1) - B_FREE_SPACE (tbSh_1)));
+
+	tb->insert_size[h] -= DC_SIZE;
+        set_blkh_free_space( blkh, blkh_free_space(blkh) - DC_SIZE );
+
+	do_balance_mark_internal_dirty (tb, tbSh, 0);
+
+	/*&&&&&&&&&&&&&&&&&&&&&&&&*/
+	check_internal (tbSh);
+	/*&&&&&&&&&&&&&&&&&&&&&&&&*/
+    
+    /* put new root into path structure */
+	PATH_OFFSET_PBUFFER(tb->tb_path, ILLEGAL_PATH_ELEMENT_OFFSET) = tbSh;
+
+	/* Change root in structure super block. */
+        PUT_SB_ROOT_BLOCK( tb->tb_sb, tbSh->b_blocknr );
+        PUT_SB_TREE_HEIGHT( tb->tb_sb, SB_TREE_HEIGHT(tb->tb_sb) + 1 );
+	do_balance_mark_sb_dirty (tb, tb->tb_sb->u.reiserfs_sb.s_sbh, 1);
+	tb->tb_sb->s_dirt = 1;
+    }
+	
+    if ( tb->blknum[h] == 2 ) {
+	int snum;
+	struct buffer_info dest_bi, src_bi;
+
+
+	/* S_new = free buffer from list FEB */
+	S_new = get_FEB(tb);
+
+        set_blkh_level( B_BLK_HEAD(S_new), h + 1 );
+
+	dest_bi.tb = tb;
+	dest_bi.bi_bh = S_new;
+	dest_bi.bi_parent = 0;
+	dest_bi.bi_position = 0;
+	src_bi.tb = tb;
+	src_bi.bi_bh = tbSh;
+	src_bi.bi_parent = PATH_H_PPARENT (tb->tb_path, h);
+	src_bi.bi_position = PATH_H_POSITION (tb->tb_path, h + 1);
+		
+	n = B_NR_ITEMS (tbSh); /* number of items in S[h] */
+	snum = (insert_num + n + 1)/2;
+	if ( n - snum >= child_pos ) {
+	    /* new items don't fall into S_new */
+	    /*	store the delimiting key for the next level */
+	    /* new_insert_key = (n - snum)'th key in S[h] */
+	    memcpy (&new_insert_key,B_N_PDELIM_KEY(tbSh,n - snum),
+		    KEY_SIZE);
+	    /* last parameter is del_par */
+	    internal_move_pointers_items (&dest_bi, &src_bi, LAST_TO_FIRST, snum, 0);
+	    /*            internal_move_pointers_items(S_new, tbSh, LAST_TO_FIRST, snum, 0);*/
+	} else if ( n + insert_num - snum < child_pos ) {
+	    /* all new items fall into S_new */
+	    /*	store the delimiting key for the next level */
+	    /* new_insert_key = (n + insert_item - snum)'th key in S[h] */
+	    memcpy(&new_insert_key,B_N_PDELIM_KEY(tbSh,n + insert_num - snum),
+		   KEY_SIZE);
+	    /* last parameter is del_par */
+	    internal_move_pointers_items (&dest_bi, &src_bi, LAST_TO_FIRST, snum - insert_num, 0);
+	    /*			internal_move_pointers_items(S_new,tbSh,1,snum - insert_num,0);*/
+
+	    /* insert insert_num keys and node-pointers into S_new */
+	    internal_insert_childs (&dest_bi, /*S_new,tb->S[h-1]->b_next,*/child_pos - n - insert_num + snum - 1,
+				    insert_num,insert_key,insert_ptr);
+
+	    insert_num = 0;
+	} else {
+	    struct disk_child * dc;
+
+	    /* some items fall into S_new, but some don't fall */
+	    /* last parameter is del_par */
+	    internal_move_pointers_items (&dest_bi, &src_bi, LAST_TO_FIRST, n - child_pos + 1, 1);
+	    /*			internal_move_pointers_items(S_new,tbSh,1,n - child_pos + 1,1);*/
+	    /* calculate number of new items that fall into S_new */
+	    k = snum - n + child_pos - 1;
+
+	    internal_insert_childs (&dest_bi, /*S_new,*/ 0, k, insert_key + 1, insert_ptr+1);
+
+	    /* new_insert_key = insert_key[insert_num - k - 1] */
+	    memcpy(&new_insert_key,insert_key + insert_num - k - 1,
+		   KEY_SIZE);
+	    /* replace first node-ptr in S_new by node-ptr to insert_ptr[insert_num-k-1] */
+
+	    dc = B_N_CHILD(S_new,0);
+	    put_dc_size( dc, (MAX_CHILD_SIZE(insert_ptr[insert_num-k-1]) -
+				B_FREE_SPACE(insert_ptr[insert_num-k-1])) );
+	    put_dc_block_number( dc, insert_ptr[insert_num-k-1]->b_blocknr );
+
+	    do_balance_mark_internal_dirty (tb, S_new,0);
+			
+	    insert_num -= (k + 1);
+	}
+	/* new_insert_ptr = node_pointer to S_new */
+	new_insert_ptr = S_new;
+
+	RFALSE(( buffer_locked(S_new) || atomic_read (&(S_new->b_count)) != 1) &&
+	       (buffer_locked(S_new) || atomic_read(&(S_new->b_count)) > 2 ||
+		!(buffer_journaled(S_new) || buffer_journal_dirty(S_new))),
+	       "cm-00001: bad S_new (%b)", S_new);
+
+	// S_new is released in unfix_nodes
+    }
+
+    n = B_NR_ITEMS (tbSh); /*number of items in S[h] */
+
+	if ( 0 <= child_pos && child_pos <= n && insert_num > 0 ) {
+	    bi.tb = tb;
+	    bi.bi_bh = tbSh;
+	    bi.bi_parent = PATH_H_PPARENT (tb->tb_path, h);
+	    bi.bi_position = PATH_H_POSITION (tb->tb_path, h + 1);
+		internal_insert_childs (
+		    &bi,/*tbSh,*/
+		    /*		( tb->S[h-1]->b_parent == tb->S[h] ) ? tb->S[h-1]->b_next :  tb->S[h]->b_child->b_next,*/
+		    child_pos,insert_num,insert_key,insert_ptr
+		    );
+	}
+
+
+	memcpy (new_insert_key_addr,&new_insert_key,KEY_SIZE);
+	insert_ptr[0] = new_insert_ptr;
+
+	return order;
+    }
+
+  
+    
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
new file mode 100644
index 00000000000000..6ad9250552bb92
--- /dev/null
+++ b/fs/reiserfs/inode.c
@@ -0,0 +1,2240 @@
+/*
+ * Copyright 2000-2002 by Hans Reiser, licensing governed by reiserfs/README
+ */
+
+#include <linux/config.h>
+#include <linux/sched.h>
+#include <linux/reiserfs_fs.h>
+#include <linux/locks.h>
+#include <linux/smp_lock.h>
+#include <asm/uaccess.h>
+#include <asm/unaligned.h>
+
+/* args for the create parameter of reiserfs_get_block */
+#define GET_BLOCK_NO_CREATE 0 /* don't create new blocks or convert tails */
+#define GET_BLOCK_CREATE 1    /* add anything you need to find block */
+#define GET_BLOCK_NO_HOLE 2   /* return -ENOENT for file holes */
+#define GET_BLOCK_READ_DIRECT 4  /* read the tail if indirect item not found */
+#define GET_BLOCK_NO_ISEM     8 /* i_sem is not held, don't preallocate */
+
+static int reiserfs_get_block (struct inode * inode, long block,
+			       struct buffer_head * bh_result, int create);
+
+/* This spinlock guards inode pkey in private part of inode
+   against race between find_actor() vs reiserfs_read_inode2 */
+static spinlock_t keycopy_lock = SPIN_LOCK_UNLOCKED;
+
+void reiserfs_delete_inode (struct inode * inode)
+{
+    int jbegin_count = JOURNAL_PER_BALANCE_CNT * 2; 
+    int windex ;
+    struct reiserfs_transaction_handle th ;
+
+  
+    lock_kernel() ; 
+
+    /* The = 0 happens when we abort creating a new inode for some reason like lack of space.. */
+    if (INODE_PKEY(inode)->k_objectid != 0) { /* also handles bad_inode case */
+	down (&inode->i_sem); 
+
+	journal_begin(&th, inode->i_sb, jbegin_count) ;
+	reiserfs_update_inode_transaction(inode) ;
+	windex = push_journal_writer("delete_inode") ;
+
+	reiserfs_delete_object (&th, inode);
+	pop_journal_writer(windex) ;
+
+	journal_end(&th, inode->i_sb, jbegin_count) ;
+
+        up (&inode->i_sem);
+
+        /* all items of file are deleted, so we can remove "save" link */
+	remove_save_link (inode, 0/* not truncate */);
+    } else {
+	/* no object items are in the tree */
+	;
+    }
+    clear_inode (inode); /* note this must go after the journal_end to prevent deadlock */
+    inode->i_blocks = 0;
+    unlock_kernel() ;
+}
+
+static void _make_cpu_key (struct cpu_key * key, int version, __u32 dirid, __u32 objectid, 
+	       loff_t offset, int type, int length )
+{
+    key->version = version;
+
+    key->on_disk_key.k_dir_id = dirid;
+    key->on_disk_key.k_objectid = objectid;
+    set_cpu_key_k_offset (key, offset);
+    set_cpu_key_k_type (key, type);  
+    key->key_length = length;
+}
+
+
+/* take base of inode_key (it comes from inode always) (dirid, objectid) and version from an inode, set
+   offset and type of key */
+void make_cpu_key (struct cpu_key * key, const struct inode * inode, loff_t offset,
+	      int type, int length )
+{
+  _make_cpu_key (key, get_inode_item_key_version (inode), le32_to_cpu (INODE_PKEY (inode)->k_dir_id),
+		 le32_to_cpu (INODE_PKEY (inode)->k_objectid), 
+		 offset, type, length);
+}
+
+
+//
+// when key is 0, do not set version and short key
+//
+inline void make_le_item_head (struct item_head * ih, const struct cpu_key * key,
+			       int version,
+			       loff_t offset, int type, int length, 
+			       int entry_count/*or ih_free_space*/)
+{
+    if (key) {
+	ih->ih_key.k_dir_id = cpu_to_le32 (key->on_disk_key.k_dir_id);
+	ih->ih_key.k_objectid = cpu_to_le32 (key->on_disk_key.k_objectid);
+    }
+    put_ih_version( ih, version );
+    set_le_ih_k_offset (ih, offset);
+    set_le_ih_k_type (ih, type);
+    put_ih_item_len( ih, length );
+    /*    set_ih_free_space (ih, 0);*/
+    // for directory items it is entry count, for directs and stat
+    // datas - 0xffff, for indirects - 0
+    put_ih_entry_count( ih, entry_count );
+}
+
+static void add_to_flushlist(struct inode *inode, struct buffer_head *bh) {
+    struct reiserfs_journal *j = SB_JOURNAL(inode->i_sb) ;
+
+    buffer_insert_list(bh, &j->j_dirty_buffers) ;
+}
+
+//
+// FIXME: we might cache recently accessed indirect item
+
+// Ugh.  Not too eager for that....
+//  I cut the code until such time as I see a convincing argument (benchmark).
+// I don't want a bloated inode struct..., and I don't like code complexity....
+
+/* cutting the code is fine, since it really isn't in use yet and is easy
+** to add back in.  But, Vladimir has a really good idea here.  Think
+** about what happens for reading a file.  For each page,
+** The VFS layer calls reiserfs_readpage, who searches the tree to find
+** an indirect item.  This indirect item has X number of pointers, where
+** X is a big number if we've done the block allocation right.  But,
+** we only use one or two of these pointers during each call to readpage,
+** needlessly researching again later on.
+**
+** The size of the cache could be dynamic based on the size of the file.
+**
+** I'd also like to see us cache the location the stat data item, since
+** we are needlessly researching for that frequently.
+**
+** --chris
+*/
+
+/* If this page has a file tail in it, and
+** it was read in by get_block_create_0, the page data is valid,
+** but tail is still sitting in a direct item, and we can't write to
+** it.  So, look through this page, and check all the mapped buffers
+** to make sure they have valid block numbers.  Any that don't need
+** to be unmapped, so that block_prepare_write will correctly call
+** reiserfs_get_block to convert the tail into an unformatted node
+*/
+static inline void fix_tail_page_for_writing(struct page *page) {
+    struct buffer_head *head, *next, *bh ;
+
+    if (page && page->buffers) {
+	head = page->buffers ;
+	bh = head ;
+	do {
+	    next = bh->b_this_page ;
+	    if (buffer_mapped(bh) && bh->b_blocknr == 0) {
+	        reiserfs_unmap_buffer(bh) ;
+	    }
+	    bh = next ;
+	} while (bh != head) ;
+    }
+}
+
+/* reiserfs_get_block does not need to allocate a block only if it has been
+   done already or non-hole position has been found in the indirect item */
+static inline int allocation_needed (int retval, b_blocknr_t allocated, 
+				     struct item_head * ih,
+				     __u32 * item, int pos_in_item)
+{
+  if (allocated)
+	 return 0;
+  if (retval == POSITION_FOUND && is_indirect_le_ih (ih) && 
+      get_block_num(item, pos_in_item))
+	 return 0;
+  return 1;
+}
+
+static inline int indirect_item_found (int retval, struct item_head * ih)
+{
+  return (retval == POSITION_FOUND) && is_indirect_le_ih (ih);
+}
+
+
+static inline void set_block_dev_mapped (struct buffer_head * bh, 
+					 b_blocknr_t block, struct inode * inode)
+{
+  bh->b_dev = inode->i_dev;
+  bh->b_blocknr = block;
+  bh->b_state |= (1UL << BH_Mapped);
+}
+
+
+//
+// files which were created in the earlier version can not be longer,
+// than 2 gb
+//
+static int file_capable (struct inode * inode, long block)
+{
+    if (get_inode_item_key_version (inode) != KEY_FORMAT_3_5 || // it is new file.
+	block < (1 << (31 - inode->i_sb->s_blocksize_bits))) // old file, but 'block' is inside of 2gb
+	return 1;
+
+    return 0;
+}
+
+/*static*/ void restart_transaction(struct reiserfs_transaction_handle *th,
+				struct inode *inode, struct path *path) {
+  struct super_block *s = th->t_super ;
+  int len = th->t_blocks_allocated ;
+
+  pathrelse(path) ;
+  reiserfs_update_sd(th, inode) ;
+  journal_end(th, s, len) ;
+  journal_begin(th, s, len) ;
+  reiserfs_update_inode_transaction(inode) ;
+}
+
+// it is called by get_block when create == 0. Returns block number
+// for 'block'-th logical block of file. When it hits direct item it
+// returns 0 (being called from bmap) or read direct item into piece
+// of page (bh_result)
+
+// Please improve the english/clarity in the comment above, as it is
+// hard to understand.
+
+static int _get_block_create_0 (struct inode * inode, long block,
+				 struct buffer_head * bh_result,
+				 int args)
+{
+    INITIALIZE_PATH (path);
+    struct cpu_key key;
+    struct buffer_head * bh;
+    struct item_head * ih, tmp_ih;
+    int fs_gen ;
+    int blocknr;
+    char * p = NULL;
+    int chars;
+    int ret ;
+    int done = 0 ;
+    unsigned long offset ;
+
+    // prepare the key to look for the 'block'-th block of file
+    make_cpu_key (&key, inode,
+		  (loff_t)block * inode->i_sb->s_blocksize + 1, TYPE_ANY, 3);
+
+research:
+    if (search_for_position_by_key (inode->i_sb, &key, &path) != POSITION_FOUND) {
+	pathrelse (&path);
+        if (p)
+            kunmap(bh_result->b_page) ;
+	// We do not return -ENOENT if there is a hole but page is uptodate, because it means
+	// That there is some MMAPED data associated with it that is yet to be written to disk.
+	if ((args & GET_BLOCK_NO_HOLE) && !Page_Uptodate(bh_result->b_page) ) {
+	    return -ENOENT ;
+	}
+        return 0 ;
+    }
+    
+    //
+    bh = get_last_bh (&path);
+    ih = get_ih (&path);
+    if (is_indirect_le_ih (ih)) {
+	__u32 * ind_item = (__u32 *)B_I_PITEM (bh, ih);
+	
+	/* FIXME: here we could cache indirect item or part of it in
+	   the inode to avoid search_by_key in case of subsequent
+	   access to file */
+	blocknr = get_block_num(ind_item, path.pos_in_item) ;
+	ret = 0 ;
+	if (blocknr) {
+	    bh_result->b_dev = inode->i_dev;
+	    bh_result->b_blocknr = blocknr;
+	    bh_result->b_state |= (1UL << BH_Mapped);
+	} else
+	    // We do not return -ENOENT if there is a hole but page is uptodate, because it means
+	    // That there is some MMAPED data associated with it that is yet to be written to disk.
+	    if ((args & GET_BLOCK_NO_HOLE) && !Page_Uptodate(bh_result->b_page) ) {
+		ret = -ENOENT ;
+	    }
+
+	pathrelse (&path);
+        if (p)
+            kunmap(bh_result->b_page) ;
+	return ret ;
+    }
+
+    // requested data are in direct item(s)
+    if (!(args & GET_BLOCK_READ_DIRECT)) {
+	// we are called by bmap. FIXME: we can not map block of file
+	// when it is stored in direct item(s)
+	pathrelse (&path);	
+        if (p)
+            kunmap(bh_result->b_page) ;
+	return -ENOENT;
+    }
+
+    /* if we've got a direct item, and the buffer was uptodate,
+    ** we don't want to pull data off disk again.  skip to the
+    ** end, where we map the buffer and return
+    */
+    if (buffer_uptodate(bh_result)) {
+        goto finished ;
+    } else 
+	/*
+	** grab_tail_page can trigger calls to reiserfs_get_block on up to date
+	** pages without any buffers.  If the page is up to date, we don't want
+	** read old data off disk.  Set the up to date bit on the buffer instead
+	** and jump to the end
+	*/
+	    if (Page_Uptodate(bh_result->b_page)) {
+		mark_buffer_uptodate(bh_result, 1);
+		goto finished ;
+    }
+
+    // read file tail into part of page
+    offset = (cpu_key_k_offset(&key) - 1) & (PAGE_CACHE_SIZE - 1) ;
+    fs_gen = get_generation(inode->i_sb) ;
+    copy_item_head (&tmp_ih, ih);
+
+    /* we only want to kmap if we are reading the tail into the page.
+    ** this is not the common case, so we don't kmap until we are
+    ** sure we need to.  But, this means the item might move if
+    ** kmap schedules
+    */
+    if (!p) {
+	p = (char *)kmap(bh_result->b_page) ;
+	if (fs_changed (fs_gen, inode->i_sb) && item_moved (&tmp_ih, &path)) {
+	    goto research;
+	}
+    }
+    p += offset ;
+    memset (p, 0, inode->i_sb->s_blocksize);
+    do {
+	if (!is_direct_le_ih (ih)) {
+	    BUG ();
+        }
+	/* make sure we don't read more bytes than actually exist in
+	** the file.  This can happen in odd cases where i_size isn't
+	** correct, and when direct item padding results in a few 
+	** extra bytes at the end of the direct item
+	*/
+        if ((le_ih_k_offset(ih) + path.pos_in_item) > inode->i_size)
+	    break ;
+	if ((le_ih_k_offset(ih) - 1 + ih_item_len(ih)) > inode->i_size) {
+	    chars = inode->i_size - (le_ih_k_offset(ih) - 1) - path.pos_in_item;
+	    done = 1 ;
+	} else {
+	    chars = ih_item_len(ih) - path.pos_in_item;
+	}
+	memcpy (p, B_I_PITEM (bh, ih) + path.pos_in_item, chars);
+
+	if (done) 
+	    break ;
+
+	p += chars;
+
+	if (PATH_LAST_POSITION (&path) != (B_NR_ITEMS (bh) - 1))
+	    // we done, if read direct item is not the last item of
+	    // node FIXME: we could try to check right delimiting key
+	    // to see whether direct item continues in the right
+	    // neighbor or rely on i_size
+	    break;
+
+	// update key to look for the next piece
+	set_cpu_key_k_offset (&key, cpu_key_k_offset (&key) + chars);
+	if (search_for_position_by_key (inode->i_sb, &key, &path) != POSITION_FOUND)
+	    // we read something from tail, even if now we got IO_ERROR
+	    break;
+	bh = get_last_bh (&path);
+	ih = get_ih (&path);
+    } while (1);
+
+    flush_dcache_page(bh_result->b_page) ;
+    kunmap(bh_result->b_page) ;
+
+finished:
+    pathrelse (&path);
+    bh_result->b_blocknr = 0 ;
+    bh_result->b_dev = inode->i_dev;
+    mark_buffer_uptodate (bh_result, 1);
+    bh_result->b_state |= (1UL << BH_Mapped);
+    return 0;
+}
+
+
+// this is called to create file map. So, _get_block_create_0 will not
+// read direct item
+int reiserfs_bmap (struct inode * inode, long block,
+		   struct buffer_head * bh_result, int create)
+{
+    if (!file_capable (inode, block))
+	return -EFBIG;
+
+    lock_kernel() ;
+    /* do not read the direct item */
+    _get_block_create_0 (inode, block, bh_result, 0) ;
+    unlock_kernel() ;
+    return 0;
+}
+
+/* special version of get_block that is only used by grab_tail_page right
+** now.  It is sent to block_prepare_write, and when you try to get a
+** block past the end of the file (or a block from a hole) it returns
+** -ENOENT instead of a valid buffer.  block_prepare_write expects to
+** be able to do i/o on the buffers returned, unless an error value
+** is also returned.
+** 
+** So, this allows block_prepare_write to be used for reading a single block
+** in a page.  Where it does not produce a valid page for holes, or past the
+** end of the file.  This turns out to be exactly what we need for reading
+** tails for conversion.
+**
+** The point of the wrapper is forcing a certain value for create, even
+** though the VFS layer is calling this function with create==1.  If you 
+** don't want to send create == GET_BLOCK_NO_HOLE to reiserfs_get_block, 
+** don't use this function.
+*/
+static int reiserfs_get_block_create_0 (struct inode * inode, long block,
+			struct buffer_head * bh_result, int create) {
+    return reiserfs_get_block(inode, block, bh_result, GET_BLOCK_NO_HOLE) ;
+}
+
+static int reiserfs_get_block_direct_io (struct inode * inode, long block,
+			struct buffer_head * bh_result, int create) {
+    int ret ;
+
+    bh_result->b_page = NULL;
+    ret = reiserfs_get_block(inode, block, bh_result, create) ;
+
+    /* don't allow direct io onto tail pages */
+    if (ret == 0 && buffer_mapped(bh_result) && bh_result->b_blocknr == 0) {
+	/* make sure future calls to the direct io funcs for this offset
+	** in the file fail by unmapping the buffer
+	*/
+	reiserfs_unmap_buffer(bh_result);
+        ret = -EINVAL ;
+    }
+    /* Possible unpacked tail. Flush the data before pages have
+       disappeared */
+    if (inode->u.reiserfs_i.i_flags & i_pack_on_close_mask) {
+	lock_kernel();
+	reiserfs_commit_for_inode(inode);
+	inode->u.reiserfs_i.i_flags &= ~i_pack_on_close_mask;
+	unlock_kernel();
+    }
+    return ret ;
+}
+
+
+/*
+** helper function for when reiserfs_get_block is called for a hole
+** but the file tail is still in a direct item
+** bh_result is the buffer head for the hole
+** tail_offset is the offset of the start of the tail in the file
+**
+** This calls prepare_write, which will start a new transaction
+** you should not be in a transaction, or have any paths held when you
+** call this.
+*/
+static int convert_tail_for_hole(struct inode *inode, 
+                                 struct buffer_head *bh_result,
+				 loff_t tail_offset) {
+    unsigned long index ;
+    unsigned long tail_end ; 
+    unsigned long tail_start ;
+    struct page * tail_page ;
+    struct page * hole_page = bh_result->b_page ;
+    int retval = 0 ;
+
+    if ((tail_offset & (bh_result->b_size - 1)) != 1) 
+        return -EIO ;
+
+    /* always try to read until the end of the block */
+    tail_start = tail_offset & (PAGE_CACHE_SIZE - 1) ;
+    tail_end = (tail_start | (bh_result->b_size - 1)) + 1 ;
+
+    index = tail_offset >> PAGE_CACHE_SHIFT ;
+    if ( !hole_page || index != hole_page->index) {
+	tail_page = grab_cache_page(inode->i_mapping, index) ;
+	retval = -ENOMEM;
+	if (!tail_page) {
+	    goto out ;
+	}
+    } else {
+        tail_page = hole_page ;
+    }
+
+    /* we don't have to make sure the conversion did not happen while
+    ** we were locking the page because anyone that could convert
+    ** must first take i_sem.
+    **
+    ** We must fix the tail page for writing because it might have buffers
+    ** that are mapped, but have a block number of 0.  This indicates tail
+    ** data that has been read directly into the page, and block_prepare_write
+    ** won't trigger a get_block in this case.
+    */
+    fix_tail_page_for_writing(tail_page) ;
+    retval = block_prepare_write(tail_page, tail_start, tail_end, 
+                                 reiserfs_get_block) ; 
+    if (retval)
+        goto unlock ;
+
+    /* tail conversion might change the data in the page */
+    flush_dcache_page(tail_page) ;
+
+    retval = generic_commit_write(NULL, tail_page, tail_start, tail_end) ;
+
+unlock:
+    if (tail_page != hole_page) {
+        UnlockPage(tail_page) ;
+	page_cache_release(tail_page) ;
+    }
+out:
+    return retval ;
+}
+
+static inline int _allocate_block(struct reiserfs_transaction_handle *th,
+			   long block,
+                           struct inode *inode, 
+			   b_blocknr_t *allocated_block_nr, 
+			   struct path * path,
+			   int flags) {
+  
+#ifdef REISERFS_PREALLOCATE
+    if (!(flags & GET_BLOCK_NO_ISEM)) {
+        return reiserfs_new_unf_blocknrs2(th, inode, allocated_block_nr, path, block);
+    }
+#endif
+    return reiserfs_new_unf_blocknrs (th, inode, allocated_block_nr, path, block);
+}
+
+static int reiserfs_get_block (struct inode * inode, long block,
+			       struct buffer_head * bh_result, int create)
+{
+    int repeat, retval;
+    b_blocknr_t allocated_block_nr = 0;// b_blocknr_t is unsigned long
+    INITIALIZE_PATH(path);
+    int pos_in_item;
+    struct cpu_key key;
+    struct buffer_head * bh, * unbh = 0;
+    struct item_head * ih, tmp_ih;
+    __u32 * item;
+    int done;
+    int fs_gen;
+    int windex ;
+    struct reiserfs_transaction_handle th ;
+    /* space reserved in transaction batch: 
+        . 3 balancings in direct->indirect conversion
+        . 1 block involved into reiserfs_update_sd()
+       XXX in practically impossible worst case direct2indirect()
+       can incur (much) more that 3 balancings. */
+    int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 1;
+    int version;
+    int transaction_started = 0 ;
+    loff_t new_offset = (((loff_t)block) << inode->i_sb->s_blocksize_bits) + 1 ;
+
+				/* bad.... */
+    lock_kernel() ;
+    th.t_trans_id = 0 ;
+    version = get_inode_item_key_version (inode);
+
+    if (block < 0) {
+	unlock_kernel();
+	return -EIO;
+    }
+
+    if (!file_capable (inode, block)) {
+	unlock_kernel() ;
+	return -EFBIG;
+    }
+
+    /* if !create, we aren't changing the FS, so we don't need to
+    ** log anything, so we don't need to start a transaction
+    */
+    if (!(create & GET_BLOCK_CREATE)) {
+	int ret ;
+	/* find number of block-th logical block of the file */
+	ret = _get_block_create_0 (inode, block, bh_result, 
+	                           create | GET_BLOCK_READ_DIRECT) ;
+	unlock_kernel() ;
+	return ret;
+    }
+
+    /* If file is of such a size, that it might have a tail and tails are enabled
+    ** we should mark it as possibly needing tail packing on close
+    */
+    if ( (have_large_tails (inode->i_sb) && inode->i_size < block_size (inode)*4) ||
+	 (have_small_tails (inode->i_sb) && inode->i_size < block_size(inode)) )
+	inode->u.reiserfs_i.i_flags |= i_pack_on_close_mask;
+
+    windex = push_journal_writer("reiserfs_get_block") ;
+  
+    /* set the key of the first byte in the 'block'-th block of file */
+    make_cpu_key (&key, inode, new_offset,
+		  TYPE_ANY, 3/*key length*/);
+    if ((new_offset + inode->i_sb->s_blocksize - 1) > inode->i_size) {
+	journal_begin(&th, inode->i_sb, jbegin_count) ;
+	reiserfs_update_inode_transaction(inode) ;
+	transaction_started = 1 ;
+    }
+ research:
+
+    retval = search_for_position_by_key (inode->i_sb, &key, &path);
+    if (retval == IO_ERROR) {
+	retval = -EIO;
+	goto failure;
+    }
+	
+    bh = get_last_bh (&path);
+    ih = get_ih (&path);
+    item = get_item (&path);
+    pos_in_item = path.pos_in_item;
+
+    fs_gen = get_generation (inode->i_sb);
+    copy_item_head (&tmp_ih, ih);
+
+    if (allocation_needed (retval, allocated_block_nr, ih, item, pos_in_item)) {
+	/* we have to allocate block for the unformatted node */
+	if (!transaction_started) {
+	    pathrelse(&path) ;
+	    journal_begin(&th, inode->i_sb, jbegin_count) ;
+	    reiserfs_update_inode_transaction(inode) ;
+	    transaction_started = 1 ;
+	    goto research ;
+	}
+
+	repeat = _allocate_block(&th, block, inode, &allocated_block_nr, &path, create);
+
+	if (repeat == NO_DISK_SPACE) {
+	    /* restart the transaction to give the journal a chance to free
+	    ** some blocks.  releases the path, so we have to go back to
+	    ** research if we succeed on the second try
+	    */
+	    restart_transaction(&th, inode, &path) ; 
+	    repeat = _allocate_block(&th, block, inode, &allocated_block_nr, NULL, create);
+
+	    if (repeat != NO_DISK_SPACE) {
+		goto research ;
+	    }
+	    retval = -ENOSPC;
+	    goto failure;
+	}
+
+	if (fs_changed (fs_gen, inode->i_sb) && item_moved (&tmp_ih, &path)) {
+	    goto research;
+	}
+    }
+
+    if (indirect_item_found (retval, ih)) {
+        b_blocknr_t unfm_ptr;
+	/* 'block'-th block is in the file already (there is
+	   corresponding cell in some indirect item). But it may be
+	   zero unformatted node pointer (hole) */
+        unfm_ptr = get_block_num (item, pos_in_item);
+	if (unfm_ptr == 0) {
+	    /* use allocated block to plug the hole */
+	    reiserfs_prepare_for_journal(inode->i_sb, bh, 1) ;
+	    if (fs_changed (fs_gen, inode->i_sb) && item_moved (&tmp_ih, &path)) {
+		reiserfs_restore_prepared_buffer(inode->i_sb, bh) ;
+		goto research;
+	    }
+	    bh_result->b_state |= (1UL << BH_New);
+	    put_block_num(item, pos_in_item, allocated_block_nr) ;
+            unfm_ptr = allocated_block_nr;
+	    journal_mark_dirty (&th, inode->i_sb, bh);
+	    inode->i_blocks += (inode->i_sb->s_blocksize / 512) ;
+	    reiserfs_update_sd(&th, inode) ;
+	}
+	set_block_dev_mapped(bh_result, unfm_ptr, inode);
+	pathrelse (&path);
+	pop_journal_writer(windex) ;
+	if (transaction_started)
+	    journal_end(&th, inode->i_sb, jbegin_count) ;
+
+	unlock_kernel() ;
+	 
+	/* the item was found, so new blocks were not added to the file
+	** there is no need to make sure the inode is updated with this 
+	** transaction
+	*/
+	return 0;
+    }
+
+    if (!transaction_started) {
+	/* if we don't pathrelse, we could vs-3050 on the buffer if
+	** someone is waiting for it (they can't finish until the buffer
+	** is released, we can start a new transaction until they finish)
+	*/
+	pathrelse(&path) ;
+	journal_begin(&th, inode->i_sb, jbegin_count) ;
+	reiserfs_update_inode_transaction(inode) ;
+	transaction_started = 1 ;
+	goto research;
+    }
+
+    /* desired position is not found or is in the direct item. We have
+       to append file with holes up to 'block'-th block converting
+       direct items to indirect one if necessary */
+    done = 0;
+    do {
+	if (is_statdata_le_ih (ih)) {
+	    __u32 unp = 0;
+	    struct cpu_key tmp_key;
+
+	    /* indirect item has to be inserted */
+	    make_le_item_head (&tmp_ih, &key, version, 1, TYPE_INDIRECT, 
+			       UNFM_P_SIZE, 0/* free_space */);
+
+	    if (cpu_key_k_offset (&key) == 1) {
+		/* we are going to add 'block'-th block to the file. Use
+		   allocated block for that */
+		unp = cpu_to_le32 (allocated_block_nr);
+		set_block_dev_mapped (bh_result, allocated_block_nr, inode);
+		bh_result->b_state |= (1UL << BH_New);
+		done = 1;
+	    }
+	    tmp_key = key; // ;)
+	    set_cpu_key_k_offset (&tmp_key, 1);
+	    PATH_LAST_POSITION(&path) ++;
+
+	    retval = reiserfs_insert_item (&th, &path, &tmp_key, &tmp_ih, (char *)&unp);
+	    if (retval) {
+		reiserfs_free_block (&th, allocated_block_nr);
+		goto failure; // retval == -ENOSPC or -EIO or -EEXIST
+	    }
+	    if (unp)
+		inode->i_blocks += inode->i_sb->s_blocksize / 512;
+	    //mark_tail_converted (inode);
+	} else if (is_direct_le_ih (ih)) {
+	    /* direct item has to be converted */
+	    loff_t tail_offset;
+
+	    tail_offset = ((le_ih_k_offset (ih) - 1) & ~(inode->i_sb->s_blocksize - 1)) + 1;
+	    if (tail_offset == cpu_key_k_offset (&key)) {
+		/* direct item we just found fits into block we have
+                   to map. Convert it into unformatted node: use
+                   bh_result for the conversion */
+		set_block_dev_mapped (bh_result, allocated_block_nr, inode);
+		unbh = bh_result;
+		done = 1;
+	    } else {
+		/* we have to padd file tail stored in direct item(s)
+		   up to block size and convert it to unformatted
+		   node. FIXME: this should also get into page cache */
+
+		pathrelse(&path) ;
+		journal_end(&th, inode->i_sb, jbegin_count) ;
+		transaction_started = 0 ;
+
+		retval = convert_tail_for_hole(inode, bh_result, tail_offset) ;
+		if (retval) {
+		    if ( retval != -ENOSPC )
+			reiserfs_warning(inode->i_sb, "clm-6004: convert tail failed inode %lu, error %d\n", inode->i_ino, retval) ;
+		    if (allocated_block_nr) {
+			/* the bitmap, the super, and the stat data == 3 */
+			journal_begin(&th, inode->i_sb, 3) ;
+			reiserfs_free_block (&th, allocated_block_nr);
+			transaction_started = 1 ;
+		    }
+		    goto failure ;
+		}
+		goto research ;
+	    }
+	    retval = direct2indirect (&th, inode, &path, unbh, tail_offset);
+	    if (retval) {
+		reiserfs_unmap_buffer(unbh);
+		reiserfs_free_block (&th, allocated_block_nr);
+		goto failure;
+	    }
+	    /* it is important the mark_buffer_uptodate is done after
+	    ** the direct2indirect.  The buffer might contain valid
+	    ** data newer than the data on disk (read by readpage, changed,
+	    ** and then sent here by writepage).  direct2indirect needs
+	    ** to know if unbh was already up to date, so it can decide
+	    ** if the data in unbh needs to be replaced with data from
+	    ** the disk
+	    */
+	    mark_buffer_uptodate (unbh, 1);
+
+	    /* unbh->b_page == NULL in case of DIRECT_IO request, this means
+	       buffer will disappear shortly, so it should not be added to
+	       any of our lists.
+	    */
+	    if ( unbh->b_page ) {
+		/* we've converted the tail, so we must 
+		** flush unbh before the transaction commits
+		*/
+		add_to_flushlist(inode, unbh) ;
+
+		/* mark it dirty now to prevent commit_write from adding
+		 ** this buffer to the inode's dirty buffer list
+		 */
+		__mark_buffer_dirty(unbh) ;
+	    }
+
+	    //inode->i_blocks += inode->i_sb->s_blocksize / 512;
+	    //mark_tail_converted (inode);
+	} else {
+	    /* append indirect item with holes if needed, when appending
+	       pointer to 'block'-th block use block, which is already
+	       allocated */
+	    struct cpu_key tmp_key;
+	    unp_t unf_single=0; // We use this in case we need to allocate only
+				// one block which is a fastpath
+	    unp_t *un;
+	    __u64 max_to_insert=MAX_ITEM_LEN(inode->i_sb->s_blocksize)/UNFM_P_SIZE;
+	    __u64 blocks_needed;
+
+	    RFALSE( pos_in_item != ih_item_len(ih) / UNFM_P_SIZE,
+		    "vs-804: invalid position for append");
+	    /* indirect item has to be appended, set up key of that position */
+	    make_cpu_key (&tmp_key, inode,
+			  le_key_k_offset (version, &(ih->ih_key)) + op_bytes_number (ih, inode->i_sb->s_blocksize),
+			  //pos_in_item * inode->i_sb->s_blocksize,
+			  TYPE_INDIRECT, 3);// key type is unimportant
+
+	    blocks_needed = 1 + ((cpu_key_k_offset (&key) - cpu_key_k_offset (&tmp_key)) >> inode->i_sb->s_blocksize_bits);
+	    RFALSE( blocks_needed < 0, "green-805: invalid offset");
+
+	    if ( blocks_needed == 1 ) {
+		un = &unf_single;
+	    } else {
+		un=kmalloc( min(blocks_needed,max_to_insert)*UNFM_P_SIZE,
+			    GFP_ATOMIC); // We need to avoid scheduling.
+		if ( !un) {
+		    un = &unf_single;
+		    blocks_needed = 1;
+		    max_to_insert = 0;
+		} else
+		    memset(un, 0, UNFM_P_SIZE * min(blocks_needed,max_to_insert));
+	    }
+	    if ( blocks_needed <= max_to_insert) {
+		/* we are going to add target block to the file. Use allocated
+		   block for that */
+		un[blocks_needed-1] = cpu_to_le32 (allocated_block_nr);
+		set_block_dev_mapped (bh_result, allocated_block_nr, inode);
+		bh_result->b_state |= (1UL << BH_New);
+		done = 1;
+	    } else {
+		/* paste hole to the indirect item */
+		/* If kmalloc failed, max_to_insert becomes zero and it means we
+		   only have space for one block */
+		blocks_needed=max_to_insert?max_to_insert:1;
+	    }
+	    retval = reiserfs_paste_into_item (&th, &path, &tmp_key, (char *)un, UNFM_P_SIZE * blocks_needed);
+
+	    if (blocks_needed != 1)
+		 kfree(un);
+
+	    if (retval) {
+		reiserfs_free_block (&th, allocated_block_nr);
+		goto failure;
+	    }
+	    if (done) {
+		inode->i_blocks += inode->i_sb->s_blocksize / 512;
+	    } else {
+		/* We need to mark new file size in case this function will be
+		   interrupted/aborted later on. And we may do this only for
+		   holes. */
+		inode->i_size += blocks_needed << inode->i_blkbits;
+	    }
+	    //mark_tail_converted (inode);
+	}
+
+	if (done == 1)
+	    break;
+
+	/* this loop could log more blocks than we had originally asked
+	** for.  So, we have to allow the transaction to end if it is
+	** too big or too full.  Update the inode so things are 
+	** consistent if we crash before the function returns
+	**
+	** release the path so that anybody waiting on the path before
+	** ending their transaction will be able to continue.
+	*/
+	if (journal_transaction_should_end(&th, th.t_blocks_allocated)) {
+	  restart_transaction(&th, inode, &path) ; 
+	}
+	/* inserting indirect pointers for a hole can take a 
+	** long time.  reschedule if needed
+	*/
+	if (current->need_resched)
+	    schedule() ;
+
+	retval = search_for_position_by_key (inode->i_sb, &key, &path);
+	if (retval == IO_ERROR) {
+	    retval = -EIO;
+	    goto failure;
+	}
+	if (retval == POSITION_FOUND) {
+	    reiserfs_warning (inode->i_sb, "vs-825: reiserfs_get_block: "
+			      "%K should not be found\n", &key);
+	    retval = -EEXIST;
+	    if (allocated_block_nr)
+	        reiserfs_free_block (&th, allocated_block_nr);
+	    pathrelse(&path) ;
+	    goto failure;
+	}
+	bh = get_last_bh (&path);
+	ih = get_ih (&path);
+	item = get_item (&path);
+	pos_in_item = path.pos_in_item;
+    } while (1);
+
+
+    retval = 0;
+    reiserfs_check_path(&path) ;
+
+ failure:
+    if (transaction_started) {
+      reiserfs_update_sd(&th, inode) ;
+      journal_end(&th, inode->i_sb, jbegin_count) ;
+    }
+    pop_journal_writer(windex) ;
+    unlock_kernel() ;
+    reiserfs_check_path(&path) ;
+    return retval;
+}
+
+
+//
+// BAD: new directories have stat data of new type and all other items
+// of old type. Version stored in the inode says about body items, so
+// in update_stat_data we can not rely on inode, but have to check
+// item version directly
+//
+
+// called by read_inode
+static void init_inode (struct inode * inode, struct path * path)
+{
+    struct buffer_head * bh;
+    struct item_head * ih;
+    __u32 rdev;
+    //int version = ITEM_VERSION_1;
+
+    bh = PATH_PLAST_BUFFER (path);
+    ih = PATH_PITEM_HEAD (path);
+
+    spin_lock(&keycopy_lock);
+    copy_key (INODE_PKEY (inode), &(ih->ih_key));
+    spin_unlock(&keycopy_lock);
+    inode->i_blksize = PAGE_SIZE;
+
+    INIT_LIST_HEAD(&inode->u.reiserfs_i.i_prealloc_list) ;
+
+    if (stat_data_v1 (ih)) {
+	struct stat_data_v1 * sd = (struct stat_data_v1 *)B_I_PITEM (bh, ih);
+	unsigned long blocks;
+
+	set_inode_item_key_version (inode, KEY_FORMAT_3_5);
+        set_inode_sd_version (inode, STAT_DATA_V1);
+	inode->i_mode  = sd_v1_mode(sd);
+	inode->i_nlink = sd_v1_nlink(sd);
+	inode->i_uid   = sd_v1_uid(sd);
+	inode->i_gid   = sd_v1_gid(sd);
+	inode->i_size  = sd_v1_size(sd);
+	inode->i_atime = sd_v1_atime(sd);
+	inode->i_mtime = sd_v1_mtime(sd);
+	inode->i_ctime = sd_v1_ctime(sd);
+
+	inode->i_blocks = sd_v1_blocks(sd);
+	inode->i_generation = le32_to_cpu (INODE_PKEY (inode)->k_dir_id);
+	blocks = (inode->i_size + 511) >> 9;
+	blocks = _ROUND_UP (blocks, inode->i_sb->s_blocksize >> 9);
+	if (inode->i_blocks > blocks) {
+	    // there was a bug in <=3.5.23 when i_blocks could take negative
+	    // values. Starting from 3.5.17 this value could even be stored in
+	    // stat data. For such files we set i_blocks based on file
+	    // size. Just 2 notes: this can be wrong for sparce files. On-disk value will be
+	    // only updated if file's inode will ever change
+	    inode->i_blocks = blocks;
+	}
+
+        rdev = sd_v1_rdev(sd);
+	inode->u.reiserfs_i.i_first_direct_byte = sd_v1_first_direct_byte(sd);
+	/* nopack is initially zero for v1 objects. For v2 objects,
+	   nopack is initialised from sd_attrs */
+	inode->u.reiserfs_i.i_flags &= ~i_nopack_mask;
+    } else {
+	// new stat data found, but object may have old items
+	// (directories and symlinks)
+	struct stat_data * sd = (struct stat_data *)B_I_PITEM (bh, ih);
+
+	inode->i_mode   = sd_v2_mode(sd);
+	inode->i_nlink  = sd_v2_nlink(sd);
+	inode->i_uid    = sd_v2_uid(sd);
+	inode->i_size   = sd_v2_size(sd);
+	inode->i_gid    = sd_v2_gid(sd);
+	inode->i_mtime  = sd_v2_mtime(sd);
+	inode->i_atime  = sd_v2_atime(sd);
+	inode->i_ctime  = sd_v2_ctime(sd);
+	inode->i_blocks = sd_v2_blocks(sd);
+        rdev            = sd_v2_rdev(sd);
+	if( S_ISCHR( inode -> i_mode ) || S_ISBLK( inode -> i_mode ) )
+	    inode->i_generation = le32_to_cpu (INODE_PKEY (inode)->k_dir_id);
+	else
+            inode->i_generation = sd_v2_generation(sd);
+
+	if (S_ISDIR (inode->i_mode) || S_ISLNK (inode->i_mode))
+	    set_inode_item_key_version (inode, KEY_FORMAT_3_5);
+	else
+            set_inode_item_key_version (inode, KEY_FORMAT_3_6);
+
+        set_inode_sd_version (inode, STAT_DATA_V2);
+	/* read persistent inode attributes from sd and initalise
+	   generic inode flags from them */
+	inode -> u.reiserfs_i.i_attrs = sd_v2_attrs( sd );
+	sd_attrs_to_i_attrs( sd_v2_attrs( sd ), inode );
+    }
+
+
+    pathrelse (path);
+    if (S_ISREG (inode->i_mode)) {
+	inode->i_op = &reiserfs_file_inode_operations;
+	inode->i_fop = &reiserfs_file_operations;
+	inode->i_mapping->a_ops = &reiserfs_address_space_operations ;
+    } else if (S_ISDIR (inode->i_mode)) {
+	inode->i_op = &reiserfs_dir_inode_operations;
+	inode->i_fop = &reiserfs_dir_operations;
+    } else if (S_ISLNK (inode->i_mode)) {
+	inode->i_op = &page_symlink_inode_operations;
+	inode->i_mapping->a_ops = &reiserfs_address_space_operations;
+    } else {
+	inode->i_blocks = 0;
+	init_special_inode(inode, inode->i_mode, rdev) ;
+    }
+}
+
+
+// update new stat data with inode fields
+static void inode2sd (void * sd, struct inode * inode)
+{
+    struct stat_data * sd_v2 = (struct stat_data *)sd;
+    __u16 flags;
+
+    set_sd_v2_mode(sd_v2, inode->i_mode );
+    set_sd_v2_nlink(sd_v2, inode->i_nlink );
+    set_sd_v2_uid(sd_v2, inode->i_uid );
+    set_sd_v2_size(sd_v2, inode->i_size );
+    set_sd_v2_gid(sd_v2, inode->i_gid );
+    set_sd_v2_mtime(sd_v2, inode->i_mtime );
+    set_sd_v2_atime(sd_v2, inode->i_atime );
+    set_sd_v2_ctime(sd_v2, inode->i_ctime );
+    set_sd_v2_blocks(sd_v2, inode->i_blocks );
+    if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
+        set_sd_v2_rdev(sd_v2, inode->i_rdev );
+    else
+        set_sd_v2_generation(sd_v2, inode->i_generation);
+    flags = inode -> u.reiserfs_i.i_attrs;
+    i_attrs_to_sd_attrs( inode, &flags );
+    set_sd_v2_attrs( sd_v2, flags );
+}
+
+
+// used to copy inode's fields to old stat data
+static void inode2sd_v1 (void * sd, struct inode * inode)
+{
+    struct stat_data_v1 * sd_v1 = (struct stat_data_v1 *)sd;
+
+    set_sd_v1_mode(sd_v1, inode->i_mode );
+    set_sd_v1_uid(sd_v1, inode->i_uid );
+    set_sd_v1_gid(sd_v1, inode->i_gid );
+    set_sd_v1_nlink(sd_v1, inode->i_nlink );
+    set_sd_v1_size(sd_v1, inode->i_size );
+    set_sd_v1_atime(sd_v1, inode->i_atime );
+    set_sd_v1_ctime(sd_v1, inode->i_ctime );
+    set_sd_v1_mtime(sd_v1, inode->i_mtime );
+
+    if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
+        set_sd_v1_rdev(sd_v1, inode->i_rdev );
+    else
+        set_sd_v1_blocks(sd_v1, inode->i_blocks );
+
+    // Sigh. i_first_direct_byte is back
+    set_sd_v1_first_direct_byte(sd_v1, inode->u.reiserfs_i.i_first_direct_byte);
+}
+
+
+/* NOTE, you must prepare the buffer head before sending it here,
+** and then log it after the call
+*/
+static void update_stat_data (struct path * path, struct inode * inode)
+{
+    struct buffer_head * bh;
+    struct item_head * ih;
+  
+    bh = PATH_PLAST_BUFFER (path);
+    ih = PATH_PITEM_HEAD (path);
+
+    if (!is_statdata_le_ih (ih))
+	reiserfs_panic (inode->i_sb, "vs-13065: update_stat_data: key %k, found item %h",
+			INODE_PKEY (inode), ih);
+  
+    if (stat_data_v1 (ih)) {
+	// path points to old stat data
+	inode2sd_v1 (B_I_PITEM (bh, ih), inode);
+    } else {
+	inode2sd (B_I_PITEM (bh, ih), inode);
+    }
+
+    return;
+}
+
+
+void reiserfs_update_sd (struct reiserfs_transaction_handle *th, 
+			 struct inode * inode)
+{
+    struct cpu_key key;
+    INITIALIZE_PATH(path);
+    struct buffer_head *bh ;
+    int fs_gen ;
+    struct item_head *ih, tmp_ih ;
+    int retval;
+
+    make_cpu_key (&key, inode, SD_OFFSET, TYPE_STAT_DATA, 3);//key type is unimportant
+    
+    for(;;) {
+	int pos;
+	/* look for the object's stat data */
+	retval = search_item (inode->i_sb, &key, &path);
+	if (retval == IO_ERROR) {
+	    reiserfs_warning (inode->i_sb, "vs-13050: reiserfs_update_sd: "
+			      "i/o failure occurred trying to update %K stat data\n",
+			      &key);
+	    return;
+	}
+	if (retval == ITEM_NOT_FOUND) {
+	    pos = PATH_LAST_POSITION (&path);
+	    pathrelse(&path) ;
+	    if (inode->i_nlink == 0) {
+		/*printk ("vs-13050: reiserfs_update_sd: i_nlink == 0, stat data not found\n");*/
+		return;
+	    }
+	    reiserfs_warning (inode->i_sb, "vs-13060: reiserfs_update_sd: "
+			      "stat data of object %k (nlink == %d) not found (pos %d)\n", 
+			      INODE_PKEY (inode), inode->i_nlink, pos);
+	    reiserfs_check_path(&path) ;
+	    return;
+	}
+	
+	/* sigh, prepare_for_journal might schedule.  When it schedules the
+	** FS might change.  We have to detect that, and loop back to the
+	** search if the stat data item has moved
+	*/
+	bh = get_last_bh(&path) ;
+	ih = get_ih(&path) ;
+	copy_item_head (&tmp_ih, ih);
+	fs_gen = get_generation (inode->i_sb);
+	reiserfs_prepare_for_journal(inode->i_sb, bh, 1) ;
+	if (fs_changed (fs_gen, inode->i_sb) && item_moved(&tmp_ih, &path)) {
+	    reiserfs_restore_prepared_buffer(inode->i_sb, bh) ;
+	    continue ;	/* Stat_data item has been moved after scheduling. */
+	}
+	break;
+    }
+    update_stat_data (&path, inode);
+    journal_mark_dirty(th, th->t_super, bh) ; 
+    pathrelse (&path);
+    return;
+}
+
+/* We need to clear inode key in private part of inode to avoid races between
+   blocking iput, knfsd and file deletion with creating of safelinks.*/
+static void reiserfs_make_bad_inode(struct inode *inode) {
+    memset(INODE_PKEY(inode), 0, KEY_SIZE);
+    make_bad_inode(inode);
+}
+
+void reiserfs_read_inode(struct inode *inode) {
+    reiserfs_make_bad_inode(inode) ;
+}
+
+
+/* looks for stat data in the tree, and fills up the fields of in-core
+   inode stat data fields */
+void reiserfs_read_inode2 (struct inode * inode, void *p)
+{
+    INITIALIZE_PATH (path_to_sd);
+    struct cpu_key key;
+    struct reiserfs_iget4_args *args = (struct reiserfs_iget4_args *)p ;
+    unsigned long dirino;
+    int retval;
+
+    if (!p) {
+	reiserfs_make_bad_inode(inode) ;
+	return;
+    }
+
+    dirino = args->objectid ;
+
+    /* set version 1, version 2 could be used too, because stat data
+       key is the same in both versions */
+    key.version = KEY_FORMAT_3_5;
+    key.on_disk_key.k_dir_id = dirino;
+    key.on_disk_key.k_objectid = inode->i_ino;
+    key.on_disk_key.u.k_offset_v1.k_offset = SD_OFFSET;
+    key.on_disk_key.u.k_offset_v1.k_uniqueness = SD_UNIQUENESS;
+
+    /* look for the object's stat data */
+    retval = search_item (inode->i_sb, &key, &path_to_sd);
+    if (retval == IO_ERROR) {
+	reiserfs_warning (inode->i_sb, "vs-13070: reiserfs_read_inode2: "
+                    "i/o failure occurred trying to find stat data of %K\n",
+                    &key);
+	reiserfs_make_bad_inode(inode) ;
+	return;
+    }
+    if (retval != ITEM_FOUND) {
+	/* a stale NFS handle can trigger this without it being an error */
+	pathrelse (&path_to_sd);
+	reiserfs_make_bad_inode(inode) ;
+	inode->i_nlink = 0;
+	return;
+    }
+
+    init_inode (inode, &path_to_sd);
+   
+    /* It is possible that knfsd is trying to access inode of a file
+       that is being removed from the disk by some other thread. As we
+       update sd on unlink all that is required is to check for nlink
+       here. This bug was first found by Sizif when debugging
+       SquidNG/Butterfly, forgotten, and found again after Philippe
+       Gramoulle <philippe.gramoulle@mmania.com> reproduced it. 
+
+       More logical fix would require changes in fs/inode.c:iput() to
+       remove inode from hash-table _after_ fs cleaned disk stuff up and
+       in iget() to return NULL if I_FREEING inode is found in
+       hash-table. */
+    /* Currently there is one place where it's ok to meet inode with
+       nlink==0: processing of open-unlinked and half-truncated files
+       during mount (fs/reiserfs/super.c:finish_unfinished()). */
+    if( ( inode -> i_nlink == 0 ) && 
+	! inode -> i_sb -> u.reiserfs_sb.s_is_unlinked_ok ) {
+	    reiserfs_warning( inode->i_sb, "vs-13075: reiserfs_read_inode2: "
+			      "dead inode read from disk %K. "
+			      "This is likely to be race with knfsd. Ignore\n", 
+			      &key );
+	    reiserfs_make_bad_inode( inode );
+    }
+
+    reiserfs_check_path(&path_to_sd) ; /* init inode should be relsing */
+
+}
+
+/**
+ * reiserfs_find_actor() - "find actor" reiserfs supplies to iget4().
+ *
+ * @inode:    inode from hash table to check
+ * @inode_no: inode number we are looking for
+ * @opaque:   "cookie" passed to iget4(). This is &reiserfs_iget4_args.
+ *
+ * This function is called by iget4() to distinguish reiserfs inodes
+ * having the same inode numbers. Such inodes can only exist due to some
+ * error condition. One of them should be bad. Inodes with identical
+ * inode numbers (objectids) are distinguished by parent directory ids.
+ *
+ */
+static int reiserfs_find_actor( struct inode *inode, 
+				unsigned long inode_no, void *opaque )
+{
+    struct reiserfs_iget4_args *args;
+    int retval;
+
+    args = opaque;
+    /* We protect against possible parallel init_inode() on another CPU here. */
+    spin_lock(&keycopy_lock);
+    /* args is already in CPU order */
+    if (le32_to_cpu(INODE_PKEY(inode)->k_dir_id) == args -> objectid)
+	retval = 1;
+    else
+	/* If The key does not match, lets see if we are racing
+	   with another iget4, that already progressed so far
+	   to reiserfs_read_inode2() and was preempted in
+	   call to search_by_key(). The signs of that are:
+	     Inode is locked
+	     dirid and object id are zero (not yet initialized)*/
+	retval = (inode->i_state & I_LOCK) &&
+		 !INODE_PKEY(inode)->k_dir_id &&
+		 !INODE_PKEY(inode)->k_objectid;
+
+    spin_unlock(&keycopy_lock);
+    return retval;
+}
+
+struct inode * reiserfs_iget (struct super_block * s, const struct cpu_key * key)
+{
+    struct inode * inode;
+    struct reiserfs_iget4_args args ;
+
+    args.objectid = key->on_disk_key.k_dir_id ;
+    inode = iget4 (s, key->on_disk_key.k_objectid, 
+		   reiserfs_find_actor, (void *)(&args));
+    if (!inode) 
+	return ERR_PTR(-ENOMEM) ;
+
+    if (comp_short_keys (INODE_PKEY (inode), key) || is_bad_inode (inode)) {
+	/* either due to i/o error or a stale NFS handle */
+	iput (inode);
+	inode = 0;
+    }
+    return inode;
+}
+
+struct dentry *reiserfs_fh_to_dentry(struct super_block *sb, __u32 *data,
+				     int len, int fhtype, int parent) {
+    struct cpu_key key ;
+    struct inode *inode = NULL ;
+    struct list_head *lp;
+    struct dentry *result;
+
+    /* fhtype happens to reflect the number of u32s encoded.
+     * due to a bug in earlier code, fhtype might indicate there
+     * are more u32s then actually fitted.
+     * so if fhtype seems to be more than len, reduce fhtype.
+     * Valid types are:
+     *   2 - objectid + dir_id - legacy support
+     *   3 - objectid + dir_id + generation
+     *   4 - objectid + dir_id + objectid and dirid of parent - legacy
+     *   5 - objectid + dir_id + generation + objectid and dirid of parent
+     *   6 - as above plus generation of directory
+     * 6 does not fit in NFSv2 handles
+     */
+    if (fhtype > len) {
+	    if (fhtype != 6 || len != 5)
+		    reiserfs_warning(sb, "nfsd/reiserfs, fhtype=%d, len=%d - odd\n",
+			   fhtype, len);
+	    fhtype = 5;
+    }
+    if (fhtype < 2 || (parent && fhtype < 4)) 
+	goto out ;
+
+    if (! parent) {
+	    /* this works for handles from old kernels because the default
+	    ** reiserfs generation number is the packing locality.
+	    */
+	    key.on_disk_key.k_objectid = data[0] ;
+	    key.on_disk_key.k_dir_id = data[1] ;
+	    inode = reiserfs_iget(sb, &key) ;
+	    if (inode && !IS_ERR(inode) && (fhtype == 3 || fhtype >= 5) &&
+		data[2] != inode->i_generation) {
+		    iput(inode) ;
+		    inode = NULL ;
+	    }
+    } else {
+	    key.on_disk_key.k_objectid = data[fhtype>=5?3:2] ;
+	    key.on_disk_key.k_dir_id = data[fhtype>=5?4:3] ;
+	    inode = reiserfs_iget(sb, &key) ;
+	    if (inode && !IS_ERR(inode) && fhtype == 6 &&
+		data[5] != inode->i_generation) {
+		    iput(inode) ;
+		    inode = NULL ;
+	    }
+    }
+out:
+    if (IS_ERR(inode))
+	return ERR_PTR(PTR_ERR(inode));
+    if (!inode)
+        return ERR_PTR(-ESTALE) ;
+
+    /* now to find a dentry.
+     * If possible, get a well-connected one
+     */
+    spin_lock(&dcache_lock);
+    for (lp = inode->i_dentry.next; lp != &inode->i_dentry ; lp=lp->next) {
+	    result = list_entry(lp,struct dentry, d_alias);
+	    if (! (result->d_flags & DCACHE_NFSD_DISCONNECTED)) {
+		    dget_locked(result);
+		    result->d_vfs_flags |= DCACHE_REFERENCED;
+		    spin_unlock(&dcache_lock);
+		    iput(inode);
+		    return result;
+	    }
+    }
+    spin_unlock(&dcache_lock);
+    result = d_alloc_root(inode);
+    if (result == NULL) {
+	    iput(inode);
+	    return ERR_PTR(-ENOMEM);
+    }
+    result->d_flags |= DCACHE_NFSD_DISCONNECTED;
+    return result;
+
+}
+
+int reiserfs_dentry_to_fh(struct dentry *dentry, __u32 *data, int *lenp, int need_parent) {
+    struct inode *inode = dentry->d_inode ;
+    int maxlen = *lenp;
+    
+    if (maxlen < 3)
+        return 255 ;
+
+    data[0] = inode->i_ino ;
+    data[1] = le32_to_cpu(INODE_PKEY (inode)->k_dir_id) ;
+    data[2] = inode->i_generation ;
+    *lenp = 3 ;
+    /* no room for directory info? return what we've stored so far */
+    if (maxlen < 5 || ! need_parent)
+        return 3 ;
+
+    inode = dentry->d_parent->d_inode ;
+    data[3] = inode->i_ino ;
+    data[4] = le32_to_cpu(INODE_PKEY (inode)->k_dir_id) ;
+    *lenp = 5 ;
+    if (maxlen < 6)
+	    return 5 ;
+    data[5] = inode->i_generation ;
+    *lenp = 6 ;
+    return 6 ;
+}
+
+
+/* looks for stat data, then copies fields to it, marks the buffer
+   containing stat data as dirty */
+/* reiserfs inodes are never really dirty, since the dirty inode call
+** always logs them.  This call allows the VFS inode marking routines
+** to properly mark inodes for datasync and such, but only actually
+** does something when called for a synchronous update.
+*/
+void reiserfs_write_inode (struct inode * inode, int do_sync) {
+    struct reiserfs_transaction_handle th ;
+    int jbegin_count = 1 ;
+
+    if (inode->i_sb->s_flags & MS_RDONLY) {
+        reiserfs_warning(inode->i_sb, "clm-6005: writing inode %lu on readonly FS\n", 
+	                  inode->i_ino) ;
+        return ;
+    }
+    /* memory pressure can sometimes initiate write_inode calls with sync == 1,
+    ** these cases are just when the system needs ram, not when the 
+    ** inode needs to reach disk for safety, and they can safely be
+    ** ignored because the altered inode has already been logged.
+    */
+    if (do_sync && !(current->flags & PF_MEMALLOC)) {
+	lock_kernel() ;
+	journal_begin(&th, inode->i_sb, jbegin_count) ;
+	reiserfs_update_sd (&th, inode);
+	journal_end_sync(&th, inode->i_sb, jbegin_count) ;
+	unlock_kernel() ;
+    }
+}
+
+/* FIXME: no need any more. right? */
+int reiserfs_sync_inode (struct reiserfs_transaction_handle *th, struct inode * inode)
+{
+  int err = 0;
+
+  reiserfs_update_sd (th, inode);
+  return err;
+}
+
+
+/* stat data of new object is inserted already, this inserts the item
+   containing "." and ".." entries */
+static int reiserfs_new_directory (struct reiserfs_transaction_handle *th, 
+				   struct item_head * ih, struct path * path,
+				   const struct inode * dir)
+{
+    struct super_block * sb = th->t_super;
+    char empty_dir [EMPTY_DIR_SIZE];
+    char * body = empty_dir;
+    struct cpu_key key;
+    int retval;
+    
+    _make_cpu_key (&key, KEY_FORMAT_3_5, le32_to_cpu (ih->ih_key.k_dir_id),
+		   le32_to_cpu (ih->ih_key.k_objectid), DOT_OFFSET, TYPE_DIRENTRY, 3/*key length*/);
+    
+    /* compose item head for new item. Directories consist of items of
+       old type (ITEM_VERSION_1). Do not set key (second arg is 0), it
+       is done by reiserfs_new_inode */
+    if (old_format_only (sb)) {
+	make_le_item_head (ih, 0, KEY_FORMAT_3_5, DOT_OFFSET, TYPE_DIRENTRY, EMPTY_DIR_SIZE_V1, 2);
+	
+	make_empty_dir_item_v1 (body, ih->ih_key.k_dir_id, ih->ih_key.k_objectid,
+				INODE_PKEY (dir)->k_dir_id, 
+				INODE_PKEY (dir)->k_objectid );
+    } else {
+	make_le_item_head (ih, 0, KEY_FORMAT_3_5, DOT_OFFSET, TYPE_DIRENTRY, EMPTY_DIR_SIZE, 2);
+	
+	make_empty_dir_item (body, ih->ih_key.k_dir_id, ih->ih_key.k_objectid,
+		   		INODE_PKEY (dir)->k_dir_id, 
+		   		INODE_PKEY (dir)->k_objectid );
+    }
+    
+    /* look for place in the tree for new item */
+    retval = search_item (sb, &key, path);
+    if (retval == IO_ERROR) {
+	reiserfs_warning (sb, "vs-13080: reiserfs_new_directory: "
+			  "i/o failure occurred creating new directory\n");
+	return -EIO;
+    }
+    if (retval == ITEM_FOUND) {
+	pathrelse (path);
+	reiserfs_warning (sb, "vs-13070: reiserfs_new_directory: "
+			  "object with this key exists (%k)\n", &(ih->ih_key));
+	return -EEXIST;
+    }
+
+    /* insert item, that is empty directory item */
+    return reiserfs_insert_item (th, path, &key, ih, body);
+}
+
+
+/* stat data of object has been inserted, this inserts the item
+   containing the body of symlink */
+static int reiserfs_new_symlink (struct reiserfs_transaction_handle *th, 
+				 struct item_head * ih,
+				 struct path * path, const char * symname, int item_len)
+{
+    struct super_block * sb = th->t_super;
+    struct cpu_key key;
+    int retval;
+
+    _make_cpu_key (&key, KEY_FORMAT_3_5, 
+		   le32_to_cpu (ih->ih_key.k_dir_id), 
+		   le32_to_cpu (ih->ih_key.k_objectid),
+		   1, TYPE_DIRECT, 3/*key length*/);
+
+    make_le_item_head (ih, 0, KEY_FORMAT_3_5, 1, TYPE_DIRECT, item_len, 0/*free_space*/);
+
+    /* look for place in the tree for new item */
+    retval = search_item (sb, &key, path);
+    if (retval == IO_ERROR) {
+	reiserfs_warning (sb, "vs-13080: reiserfs_new_symlinik: "
+			  "i/o failure occurred creating new symlink\n");
+	return -EIO;
+    }
+    if (retval == ITEM_FOUND) {
+	pathrelse (path);
+	reiserfs_warning (sb, "vs-13080: reiserfs_new_symlink: "
+			  "object with this key exists (%k)\n", &(ih->ih_key));
+	return -EEXIST;
+    }
+
+    /* insert item, that is body of symlink */
+    return reiserfs_insert_item (th, path, &key, ih, symname);
+}
+
+
+/* inserts the stat data into the tree, and then calls
+   reiserfs_new_directory (to insert ".", ".." item if new object is
+   directory) or reiserfs_new_symlink (to insert symlink body if new
+   object is symlink) or nothing (if new object is regular file)
+
+   NOTE! uid and gid must already be set in the inode.  If we return
+   non-zero due to an error, we have to drop the quota previously allocated
+   for the fresh inode.  This can only be done outside a transaction, so
+   if we return non-zero, we also end the transaction.
+
+   */
+int reiserfs_new_inode (struct reiserfs_transaction_handle *th,
+				struct inode * dir, int mode,
+				const char * symname,
+				/* 0 for regular, EMTRY_DIR_SIZE for dirs,
+				   strlen (symname) for symlinks) */
+				int i_size,
+				struct dentry *dentry,
+				struct inode *inode)
+{
+    struct super_block * sb;
+    INITIALIZE_PATH (path_to_key);
+    struct cpu_key key;
+    struct item_head ih;
+    struct stat_data sd;
+    int retval;
+    int err ;
+  
+    if (!dir || !dir->i_nlink) {
+	err = -EPERM ;
+	goto out_bad_inode ;
+    }
+
+    sb = dir->i_sb;
+    inode -> u.reiserfs_i.i_attrs = 
+	    dir -> u.reiserfs_i.i_attrs & REISERFS_INHERIT_MASK;
+    sd_attrs_to_i_attrs( inode -> u.reiserfs_i.i_attrs, inode );
+
+    /* symlink cannot be immutable or append only, right? */
+    if( S_ISLNK( inode -> i_mode ) )
+	    inode -> i_flags &= ~ ( S_IMMUTABLE | S_APPEND );
+
+    /* item head of new item */
+    ih.ih_key.k_dir_id = INODE_PKEY (dir)->k_objectid;
+    ih.ih_key.k_objectid = cpu_to_le32 (reiserfs_get_unused_objectid (th));
+    if (!ih.ih_key.k_objectid) {
+	err = -ENOMEM ;
+	goto out_bad_inode ;
+    }
+    if (old_format_only (sb))
+      /* not a perfect generation count, as object ids can be reused, but this
+      ** is as good as reiserfs can do right now.
+      ** note that the private part of inode isn't filled in yet, we have
+      ** to use the directory.
+      */
+      inode->i_generation = le32_to_cpu (INODE_PKEY (dir)->k_objectid);
+    else
+#if defined( USE_INODE_GENERATION_COUNTER )
+      inode->i_generation = 
+	le32_to_cpu( sb -> u.reiserfs_sb.s_rs -> s_inode_generation );
+#else
+      inode->i_generation = ++event;
+#endif
+    /* fill stat data */
+    inode->i_nlink = (S_ISDIR (mode) ? 2 : 1);
+
+    /* uid and gid must already be set by the caller for quota init */
+
+    inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+    inode->i_size = i_size;
+    inode->i_blocks = (inode->i_size + 511) >> 9;
+    inode->u.reiserfs_i.i_first_direct_byte = S_ISLNK(mode) ? 1 : 
+      U32_MAX/*NO_BYTES_IN_DIRECT_ITEM*/;
+
+    INIT_LIST_HEAD(&inode->u.reiserfs_i.i_prealloc_list) ;
+
+    if (old_format_only (sb))
+	make_le_item_head (&ih, 0, KEY_FORMAT_3_5, SD_OFFSET, TYPE_STAT_DATA, SD_V1_SIZE, MAX_US_INT);
+    else
+	make_le_item_head (&ih, 0, KEY_FORMAT_3_6, SD_OFFSET, TYPE_STAT_DATA, SD_SIZE, MAX_US_INT);
+
+    /* key to search for correct place for new stat data */
+    _make_cpu_key (&key, KEY_FORMAT_3_6, le32_to_cpu (ih.ih_key.k_dir_id),
+		   le32_to_cpu (ih.ih_key.k_objectid), SD_OFFSET, TYPE_STAT_DATA, 3/*key length*/);
+
+    /* find proper place for inserting of stat data */
+    retval = search_item (sb, &key, &path_to_key);
+    if (retval == IO_ERROR) {
+	err = -EIO;
+	goto out_bad_inode;
+    }
+    if (retval == ITEM_FOUND) {
+	pathrelse (&path_to_key);
+	err = -EEXIST;
+	goto out_bad_inode;
+    }
+
+    if (old_format_only (sb)) {
+	if (inode->i_uid & ~0xffff || inode->i_gid & ~0xffff) {
+	    pathrelse (&path_to_key);
+	    /* i_uid or i_gid is too big to be stored in stat data v3.5 */
+	    err = -EINVAL;
+	    goto out_bad_inode;
+	}
+	inode2sd_v1 (&sd, inode);
+    } else
+	inode2sd (&sd, inode);
+
+    // these do not go to on-disk stat data
+    inode->i_ino = le32_to_cpu (ih.ih_key.k_objectid);
+    inode->i_blksize = PAGE_SIZE;
+    inode->i_dev = sb->s_dev;
+  
+    // store in in-core inode the key of stat data and version all
+    // object items will have (directory items will have old offset
+    // format, other new objects will consist of new items)
+    memcpy (INODE_PKEY (inode), &(ih.ih_key), KEY_SIZE);
+    if (old_format_only (sb) || S_ISDIR(mode) || S_ISLNK(mode))
+        set_inode_item_key_version (inode, KEY_FORMAT_3_5);
+    else
+        set_inode_item_key_version (inode, KEY_FORMAT_3_6);
+    if (old_format_only (sb))
+	set_inode_sd_version (inode, STAT_DATA_V1);
+    else
+	set_inode_sd_version (inode, STAT_DATA_V2);
+    
+    /* insert the stat data into the tree */
+#ifdef DISPLACE_NEW_PACKING_LOCALITIES
+    if (dir->u.reiserfs_i.new_packing_locality)
+	th->displace_new_blocks = 1;
+#endif
+    retval = reiserfs_insert_item (th, &path_to_key, &key, &ih, (char *)(&sd));
+    if (retval) {
+	reiserfs_check_path(&path_to_key) ;
+	err = retval;
+	goto out_bad_inode;
+    }
+
+#ifdef DISPLACE_NEW_PACKING_LOCALITIES
+    if (!th->displace_new_blocks)
+	dir->u.reiserfs_i.new_packing_locality = 0;
+#endif
+    if (S_ISDIR(mode)) {
+	/* insert item with "." and ".." */
+	retval = reiserfs_new_directory (th, &ih, &path_to_key, dir);
+    }
+
+    if (S_ISLNK(mode)) {
+	/* insert body of symlink */
+	if (!old_format_only (sb))
+	    i_size = ROUND_UP(i_size);
+	retval = reiserfs_new_symlink (th, &ih, &path_to_key, symname, i_size);
+    }
+    if (retval) {
+	err = retval;
+	reiserfs_check_path(&path_to_key) ;
+	journal_end(th, th->t_super, th->t_blocks_allocated) ;
+	goto out_inserted_sd;
+    }
+
+    insert_inode_hash (inode);
+    reiserfs_update_sd(th, inode) ;
+    reiserfs_check_path(&path_to_key) ;
+
+    return 0;
+out_bad_inode:
+    /* Invalidate the object, nothing was inserted yet */
+    INODE_PKEY(inode)->k_objectid = 0;
+
+    /* dquot_drop must be done outside a transaction */
+    journal_end(th, th->t_super, th->t_blocks_allocated) ;
+    make_bad_inode(inode);
+
+out_inserted_sd:
+    inode->i_nlink = 0;
+    th->t_trans_id = 0 ; /* so the caller can't use this handle later */
+    iput(inode) ;
+    return err;
+}
+
+/*
+** finds the tail page in the page cache,
+** reads the last block in.
+**
+** On success, page_result is set to a locked, pinned page, and bh_result
+** is set to an up to date buffer for the last block in the file.  returns 0.
+**
+** tail conversion is not done, so bh_result might not be valid for writing
+** check buffer_mapped(bh_result) and bh_result->b_blocknr != 0 before
+** trying to write the block.
+**
+** on failure, nonzero is returned, page_result and bh_result are untouched.
+*/
+static int grab_tail_page(struct inode *p_s_inode, 
+			  struct page **page_result, 
+			  struct buffer_head **bh_result) {
+
+    /* we want the page with the last byte in the file,
+    ** not the page that will hold the next byte for appending
+    */
+    unsigned long index = (p_s_inode->i_size-1) >> PAGE_CACHE_SHIFT ;
+    unsigned long pos = 0 ;
+    unsigned long start = 0 ;
+    unsigned long blocksize = p_s_inode->i_sb->s_blocksize ;
+    unsigned long offset = (p_s_inode->i_size) & (PAGE_CACHE_SIZE - 1) ;
+    struct buffer_head *bh ;
+    struct buffer_head *head ;
+    struct page * page ;
+    int error ;
+    
+    /* we know that we are only called with inode->i_size > 0.
+    ** we also know that a file tail can never be as big as a block
+    ** If i_size % blocksize == 0, our file is currently block aligned
+    ** and it won't need converting or zeroing after a truncate.
+    */
+    if ((offset & (blocksize - 1)) == 0) {
+        return -ENOENT ;
+    }
+    page = grab_cache_page(p_s_inode->i_mapping, index) ;
+    error = -ENOMEM ;
+    if (!page) {
+        goto out ;
+    }
+    /* start within the page of the last block in the file */
+    start = (offset / blocksize) * blocksize ;
+
+    error = block_prepare_write(page, start, offset, 
+				reiserfs_get_block_create_0) ;
+    if (error)
+	goto unlock ;
+
+    kunmap(page) ; /* mapped by block_prepare_write */
+
+    head = page->buffers ;      
+    bh = head;
+    do {
+	if (pos >= start) {
+	    break ;
+	}
+	bh = bh->b_this_page ;
+	pos += blocksize ;
+    } while(bh != head) ;
+
+    if (!buffer_uptodate(bh)) {
+	/* note, this should never happen, prepare_write should
+	** be taking care of this for us.  If the buffer isn't up to date,
+	** I've screwed up the code to find the buffer, or the code to
+	** call prepare_write
+	*/
+	reiserfs_warning(p_s_inode->i_sb, "clm-6000: error reading block %lu\n",
+	                  bh->b_blocknr) ;
+	error = -EIO ;
+	goto unlock ;
+    }
+    *bh_result = bh ;
+    *page_result = page ;
+
+out:
+    return error ;
+
+unlock:
+    UnlockPage(page) ;
+    page_cache_release(page) ;
+    return error ;
+}
+
+/*
+** vfs version of truncate file.  Must NOT be called with
+** a transaction already started.
+**
+** some code taken from block_truncate_page
+*/
+void reiserfs_truncate_file(struct inode *p_s_inode, int update_timestamps) {
+    struct reiserfs_transaction_handle th ;
+    int windex ;
+
+    /* we want the offset for the first byte after the end of the file */
+    unsigned long offset = p_s_inode->i_size & (PAGE_CACHE_SIZE - 1) ;
+    unsigned blocksize = p_s_inode->i_sb->s_blocksize ;
+    unsigned length ;
+    struct page *page = NULL ;
+    int error ;
+    struct buffer_head *bh = NULL ;
+
+    if (p_s_inode->i_size > 0) {
+        if ((error = grab_tail_page(p_s_inode, &page, &bh))) {
+	    // -ENOENT means we truncated past the end of the file, 
+	    // and get_block_create_0 could not find a block to read in,
+	    // which is ok.
+	    if (error != -ENOENT)
+	        reiserfs_warning(p_s_inode->i_sb, "clm-6001: grab_tail_page failed %d\n", error);
+	    page = NULL ;
+	    bh = NULL ;
+	}
+    }
+
+    /* so, if page != NULL, we have a buffer head for the offset at 
+    ** the end of the file. if the bh is mapped, and bh->b_blocknr != 0, 
+    ** then we have an unformatted node.  Otherwise, we have a direct item, 
+    ** and no zeroing is required on disk.  We zero after the truncate, 
+    ** because the truncate might pack the item anyway 
+    ** (it will unmap bh if it packs).
+    */
+    /* it is enough to reserve space in transaction for 2 balancings:
+       one for "save" link adding and another for the first
+       cut_from_item. 1 is for update_sd */
+    journal_begin(&th, p_s_inode->i_sb,  JOURNAL_PER_BALANCE_CNT * 2 + 1 ) ;
+    reiserfs_update_inode_transaction(p_s_inode) ;
+    windex = push_journal_writer("reiserfs_vfs_truncate_file") ;
+    if (update_timestamps)
+	    /* we are doing real truncate: if the system crashes before the last
+	       transaction of truncating gets committed - on reboot the file
+	       either appears truncated properly or not truncated at all */
+	add_save_link (&th, p_s_inode, 1);
+    reiserfs_do_truncate (&th, p_s_inode, page, update_timestamps) ;
+    pop_journal_writer(windex) ;
+    journal_end(&th, p_s_inode->i_sb,  JOURNAL_PER_BALANCE_CNT * 2 + 1 ) ;
+
+    if (update_timestamps)
+	remove_save_link (p_s_inode, 1/* truncate */);
+
+    if (page) {
+        length = offset & (blocksize - 1) ;
+	/* if we are not on a block boundary */
+	if (length) {
+	    length = blocksize - length ;
+	    memset((char *)kmap(page) + offset, 0, length) ;   
+	    flush_dcache_page(page) ;
+	    kunmap(page) ;
+	    if (buffer_mapped(bh) && bh->b_blocknr != 0) {
+	        if (!atomic_set_buffer_dirty(bh)) {
+			set_buffer_flushtime(bh);
+			refile_buffer(bh);
+			buffer_insert_inode_data_queue(bh, p_s_inode);
+			balance_dirty();
+		}
+	    }
+	}
+	UnlockPage(page) ;
+	page_cache_release(page) ;
+    }
+
+    return ;
+}
+
+static int map_block_for_writepage(struct inode *inode, 
+			       struct buffer_head *bh_result, 
+                               unsigned long block) {
+    struct reiserfs_transaction_handle th ;
+    int fs_gen ;
+    struct item_head tmp_ih ;
+    struct item_head *ih ;
+    struct buffer_head *bh ;
+    __u32 *item ;
+    struct cpu_key key ;
+    INITIALIZE_PATH(path) ;
+    int pos_in_item ;
+    int jbegin_count = JOURNAL_PER_BALANCE_CNT ;
+    loff_t byte_offset = (block << inode->i_sb->s_blocksize_bits) + 1 ;
+    int retval ;
+    int use_get_block = 0 ;
+    int bytes_copied = 0 ;
+    int copy_size ;
+
+    kmap(bh_result->b_page) ;
+start_over:
+    lock_kernel() ;
+    journal_begin(&th, inode->i_sb, jbegin_count) ;
+    reiserfs_update_inode_transaction(inode) ;
+
+    make_cpu_key(&key, inode, byte_offset, TYPE_ANY, 3) ;
+
+research:
+    retval = search_for_position_by_key(inode->i_sb, &key, &path) ;
+    if (retval != POSITION_FOUND) {
+        use_get_block = 1;
+	goto out ;
+    } 
+
+    bh = get_last_bh(&path) ;
+    ih = get_ih(&path) ;
+    item = get_item(&path) ;
+    pos_in_item = path.pos_in_item ;
+
+    /* we've found an unformatted node */
+    if (indirect_item_found(retval, ih)) {
+	if (bytes_copied > 0) {
+	    reiserfs_warning(inode->i_sb, "clm-6002: bytes_copied %d\n", bytes_copied) ;
+	}
+        if (!get_block_num(item, pos_in_item)) {
+	    /* crap, we are writing to a hole */
+	    use_get_block = 1;
+	    goto out ;
+	}
+	set_block_dev_mapped(bh_result, get_block_num(item,pos_in_item),inode);
+        mark_buffer_uptodate(bh_result, 1);
+    } else if (is_direct_le_ih(ih)) {
+        char *p ; 
+        p = page_address(bh_result->b_page) ;
+        p += (byte_offset -1) & (PAGE_CACHE_SIZE - 1) ;
+        copy_size = ih_item_len(ih) - pos_in_item;
+
+	fs_gen = get_generation(inode->i_sb) ;
+	copy_item_head(&tmp_ih, ih) ;
+	reiserfs_prepare_for_journal(inode->i_sb, bh, 1) ;
+	if (fs_changed (fs_gen, inode->i_sb) && item_moved (&tmp_ih, &path)) {
+	    reiserfs_restore_prepared_buffer(inode->i_sb, bh) ;
+	    goto research;
+	}
+
+	memcpy( B_I_PITEM(bh, ih) + pos_in_item, p + bytes_copied, copy_size) ;
+
+	journal_mark_dirty(&th, inode->i_sb, bh) ;
+	bytes_copied += copy_size ;
+	set_block_dev_mapped(bh_result, 0, inode);
+        mark_buffer_uptodate(bh_result, 1);
+
+	/* are there still bytes left? */
+        if (bytes_copied < bh_result->b_size && 
+	    (byte_offset + bytes_copied) < inode->i_size) {
+	    set_cpu_key_k_offset(&key, cpu_key_k_offset(&key) + copy_size) ;
+	    goto research ;
+	}
+    } else {
+        reiserfs_warning(inode->i_sb, "clm-6003: bad item inode %lu\n", inode->i_ino) ;
+        retval = -EIO ;
+	goto out ;
+    }
+    retval = 0 ;
+    
+out:
+    pathrelse(&path) ;
+    journal_end(&th, inode->i_sb, jbegin_count) ;
+    unlock_kernel() ;
+
+    /* this is where we fill in holes in the file. */
+    if (use_get_block) {
+	retval = reiserfs_get_block(inode, block, bh_result, 
+	                            GET_BLOCK_CREATE | GET_BLOCK_NO_ISEM) ;
+	if (!retval) {
+	    if (!buffer_mapped(bh_result) || bh_result->b_blocknr == 0) {
+	        /* get_block failed to find a mapped unformatted node. */
+		use_get_block = 0 ;
+		goto start_over ;
+	    }
+	}
+    }
+    kunmap(bh_result->b_page) ;
+    return retval ;
+}
+
+/* helper func to get a buffer head ready for writepage to send to
+** ll_rw_block
+*/
+static inline void submit_bh_for_writepage(struct buffer_head **bhp, int nr) {
+    struct buffer_head *bh ;
+    int i;
+
+    /* lock them all first so the end_io handler doesn't unlock the page
+    ** too early
+    */
+    for(i = 0 ; i < nr ; i++) {
+        bh = bhp[i] ;
+	lock_buffer(bh) ;
+	set_buffer_async_io(bh) ;
+    }
+    for(i = 0 ; i < nr ; i++) {
+	/* submit_bh doesn't care if the buffer is dirty, but nobody
+	** later on in the call chain will be cleaning it.  So, we
+	** clean the buffer here, it still gets written either way.
+	*/
+        bh = bhp[i] ;
+	clear_bit(BH_Dirty, &bh->b_state) ;
+	set_bit(BH_Uptodate, &bh->b_state) ;
+	submit_bh(WRITE, bh) ;
+    }
+}
+
+static int reiserfs_write_full_page(struct page *page) {
+    struct inode *inode = page->mapping->host ;
+    unsigned long end_index = inode->i_size >> PAGE_CACHE_SHIFT ;
+    unsigned last_offset = PAGE_CACHE_SIZE;
+    int error = 0;
+    unsigned long block ;
+    unsigned cur_offset = 0 ;
+    struct buffer_head *head, *bh ;
+    int partial = 0 ;
+    struct buffer_head *arr[PAGE_CACHE_SIZE/512] ;
+    int nr = 0 ;
+
+    if (!page->buffers) {
+        block_prepare_write(page, 0, 0, NULL) ;
+	kunmap(page) ;
+    }
+    /* last page in the file, zero out any contents past the
+    ** last byte in the file
+    */
+    if (page->index >= end_index) {
+        last_offset = inode->i_size & (PAGE_CACHE_SIZE - 1) ;
+	/* no file contents in this page */
+	if (page->index >= end_index + 1 || !last_offset) {
+	    error =  -EIO ;
+	    goto fail ;
+	}
+	memset((char *)kmap(page)+last_offset, 0, PAGE_CACHE_SIZE-last_offset) ;
+	flush_dcache_page(page) ;
+	kunmap(page) ;
+    }
+    head = page->buffers ;
+    bh = head ;
+    block = page->index << (PAGE_CACHE_SHIFT - inode->i_sb->s_blocksize_bits) ;
+    do {
+	/* if this offset in the page is outside the file */
+	if (cur_offset >= last_offset) {
+	    if (!buffer_uptodate(bh))
+	        partial = 1 ;
+	} else {
+	    /* fast path, buffer mapped to an unformatted node */
+	    if (buffer_mapped(bh) && bh->b_blocknr != 0) {
+		arr[nr++] = bh ;
+	    } else {
+		/* buffer not mapped yet, or points to a direct item.
+		** search and dirty or log
+		*/
+		if ((error = map_block_for_writepage(inode, bh, block))) {
+		    goto fail ;
+		}
+		/* map_block_for_writepage either found an unformatted node
+		** and mapped it for us, or it found a direct item
+		** and logged the changes.  
+		*/
+		if (buffer_mapped(bh) && bh->b_blocknr != 0) {
+		    arr[nr++] = bh ;
+		}
+	    }
+	}
+        bh = bh->b_this_page ;
+	cur_offset += bh->b_size ;
+	block++ ;
+    } while(bh != head) ;
+
+    /* if this page only had a direct item, it is very possible for
+    ** nr == 0 without there being any kind of error.
+    */
+    if (nr) {
+        submit_bh_for_writepage(arr, nr) ;
+	wakeup_page_waiters(page);
+    } else {
+        UnlockPage(page) ;
+    }
+    if (!partial)
+        SetPageUptodate(page) ;
+
+    return 0 ;
+
+fail:
+    if (nr) {
+        submit_bh_for_writepage(arr, nr) ;
+    } else {
+        UnlockPage(page) ;
+    }
+    ClearPageUptodate(page) ;
+    return error ;
+}
+
+
+static int reiserfs_readpage (struct file *f, struct page * page)
+{
+    return block_read_full_page (page, reiserfs_get_block);
+}
+
+
+static int reiserfs_writepage (struct page * page)
+{
+    struct inode *inode = page->mapping->host ;
+    reiserfs_wait_on_write_block(inode->i_sb) ;
+    return reiserfs_write_full_page(page) ;
+}
+
+
+int reiserfs_prepare_write(struct file *f, struct page *page, 
+			   unsigned from, unsigned to) {
+    struct inode *inode = page->mapping->host ;
+    reiserfs_wait_on_write_block(inode->i_sb) ;
+    fix_tail_page_for_writing(page) ;
+    return block_prepare_write(page, from, to, reiserfs_get_block) ;
+}
+
+
+static int reiserfs_aop_bmap(struct address_space *as, long block) {
+  return generic_block_bmap(as, block, reiserfs_bmap) ;
+}
+
+static int reiserfs_commit_write(struct file *f, struct page *page, 
+                                 unsigned from, unsigned to) {
+    struct inode *inode = page->mapping->host ;
+    loff_t pos = ((loff_t)page->index << PAGE_CACHE_SHIFT) + to;
+    int ret ; 
+    
+    reiserfs_wait_on_write_block(inode->i_sb) ;
+ 
+    /* generic_commit_write does this for us, but does not update the
+    ** transaction tracking stuff when the size changes.  So, we have
+    ** to do the i_size updates here.
+    */
+    if (pos > inode->i_size) {
+	struct reiserfs_transaction_handle th ;
+	lock_kernel();
+	/* If the file have grown beyond the border where it
+	   can have a tail, unmark it as needing a tail
+	   packing */
+	if ( (have_large_tails (inode->i_sb) && inode->i_size > block_size (inode)*4) ||
+	     (have_small_tails (inode->i_sb) && inode->i_size > block_size(inode)) )
+	    inode->u.reiserfs_i.i_flags &= ~i_pack_on_close_mask;
+
+	journal_begin(&th, inode->i_sb, 1) ;
+	reiserfs_update_inode_transaction(inode) ;
+	inode->i_size = pos ;
+	reiserfs_update_sd(&th, inode) ;
+	journal_end(&th, inode->i_sb, 1) ;
+	unlock_kernel();
+    }
+ 
+    ret = generic_commit_write(f, page, from, to) ;
+
+    /* we test for O_SYNC here so we can commit the transaction
+    ** for any packed tails the file might have had
+    */
+    if (f && (f->f_flags & O_SYNC)) {
+	lock_kernel() ;
+ 	reiserfs_commit_for_inode(inode) ;
+	unlock_kernel();
+    }
+    return ret ;
+}
+
+void sd_attrs_to_i_attrs( __u16 sd_attrs, struct inode *inode )
+{
+	if( reiserfs_attrs( inode -> i_sb ) ) {
+		if( sd_attrs & REISERFS_SYNC_FL )
+			inode -> i_flags |= S_SYNC;
+		else
+			inode -> i_flags &= ~S_SYNC;
+		if( sd_attrs & REISERFS_IMMUTABLE_FL )
+			inode -> i_flags |= S_IMMUTABLE;
+		else
+			inode -> i_flags &= ~S_IMMUTABLE;
+		if( sd_attrs & REISERFS_APPEND_FL )
+			inode -> i_flags |= S_APPEND;
+		else
+			inode -> i_flags &= ~S_APPEND;
+		if( sd_attrs & REISERFS_NOATIME_FL )
+			inode -> i_flags |= S_NOATIME;
+		else
+			inode -> i_flags &= ~S_NOATIME;
+		if( sd_attrs & REISERFS_NOTAIL_FL )
+			inode->u.reiserfs_i.i_flags |= i_nopack_mask;
+		else
+			inode->u.reiserfs_i.i_flags &= ~i_nopack_mask;
+	}
+}
+
+void i_attrs_to_sd_attrs( struct inode *inode, __u16 *sd_attrs )
+{
+	if( reiserfs_attrs( inode -> i_sb ) ) {
+		if( inode -> i_flags & S_IMMUTABLE )
+			*sd_attrs |= REISERFS_IMMUTABLE_FL;
+		else
+			*sd_attrs &= ~REISERFS_IMMUTABLE_FL;
+		if( inode -> i_flags & S_SYNC )
+			*sd_attrs |= REISERFS_SYNC_FL;
+		else
+			*sd_attrs &= ~REISERFS_SYNC_FL;
+		if( inode -> i_flags & S_NOATIME )
+			*sd_attrs |= REISERFS_NOATIME_FL;
+		else
+			*sd_attrs &= ~REISERFS_NOATIME_FL;
+		if( inode->u.reiserfs_i.i_flags & i_nopack_mask )
+			*sd_attrs |= REISERFS_NOTAIL_FL;
+		else
+			*sd_attrs &= ~REISERFS_NOTAIL_FL;
+	}
+}
+
+static int reiserfs_direct_io(int rw, struct inode *inode, 
+                              struct kiobuf *iobuf, unsigned long blocknr,
+			      int blocksize) 
+{
+    lock_kernel();
+    reiserfs_commit_for_tail(inode);
+    unlock_kernel();
+    return generic_direct_IO(rw, inode, iobuf, blocknr, blocksize,
+                             reiserfs_get_block_direct_io) ;
+}
+
+struct address_space_operations reiserfs_address_space_operations = {
+    writepage: reiserfs_writepage,
+    readpage: reiserfs_readpage, 
+    sync_page: block_sync_page,
+    prepare_write: reiserfs_prepare_write,
+    commit_write: reiserfs_commit_write,
+    bmap: reiserfs_aop_bmap,
+    direct_IO: reiserfs_direct_io,
+} ;
diff --git a/fs/reiserfs/ioctl.c b/fs/reiserfs/ioctl.c
new file mode 100644
index 00000000000000..345ff07c05d6c7
--- /dev/null
+++ b/fs/reiserfs/ioctl.c
@@ -0,0 +1,152 @@
+/*
+ * Copyright 2000-2002 by Hans Reiser, licensing governed by reiserfs/README
+ */
+
+#include <linux/fs.h>
+#include <linux/reiserfs_fs.h>
+#include <linux/sched.h>
+#include <asm/uaccess.h>
+#include <linux/smp_lock.h>
+#include <linux/locks.h>
+
+/*
+** reiserfs_ioctl - handler for ioctl for inode
+** supported commands:
+**  1) REISERFS_IOC_UNPACK - try to unpack tail from direct item into indirect
+**                           and prevent packing file (argument arg has to be non-zero)
+**  2) REISERFS_IOC_[GS]ETFLAGS, REISERFS_IOC_[GS]ETVERSION
+**  3) That's all for a while ...
+*/
+int reiserfs_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
+		unsigned long arg)
+{
+	unsigned int flags;
+
+	switch (cmd) {
+	    case REISERFS_IOC_UNPACK:
+		if( S_ISREG( inode -> i_mode ) ) {
+		if (arg)
+		    return reiserfs_unpack (inode, filp);
+			else
+				return 0;
+		} else
+			return -ENOTTY;
+	/*
+	 * Following {G,S}ETFLAGS, and {G,S}ETVERSION are providing ext2
+	 * binary compatible interface (used by lsattr(1), and chattr(1)) and
+	 * are * thus conceptually similar to appropriate pieces of
+	 * fs/ext2/ioctl.c
+	 */
+	case REISERFS_IOC_GETFLAGS:
+		flags = inode -> u.reiserfs_i.i_attrs;
+		i_attrs_to_sd_attrs( inode, ( __u16 * ) &flags );
+		return put_user(flags, (int *) arg);
+	case REISERFS_IOC_SETFLAGS: {
+		if (IS_RDONLY(inode))
+			return -EROFS;
+
+		if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+			return -EPERM;
+
+		if (get_user(flags, (int *) arg))
+			return -EFAULT;
+
+		if ( ( ( flags ^ inode->u.reiserfs_i.i_attrs) & ( REISERFS_IMMUTABLE_FL | REISERFS_APPEND_FL)) && 
+		     !capable( CAP_LINUX_IMMUTABLE ) )
+			return -EPERM;
+			
+		if( ( flags & REISERFS_NOTAIL_FL ) &&
+		    S_ISREG( inode -> i_mode ) ) {
+				int result;
+
+				result = reiserfs_unpack( inode, filp );
+				if( result )
+					return result;
+		}
+		sd_attrs_to_i_attrs( flags, inode );
+		inode -> u.reiserfs_i.i_attrs = flags;
+		inode->i_ctime = CURRENT_TIME;
+		mark_inode_dirty(inode);
+		return 0;
+	}
+	case REISERFS_IOC_GETVERSION:
+		return put_user(inode->i_generation, (int *) arg);
+	case REISERFS_IOC_SETVERSION:
+		if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+			return -EPERM;
+		if (IS_RDONLY(inode))
+			return -EROFS;
+		if (get_user(inode->i_generation, (int *) arg))
+			return -EFAULT;	
+		inode->i_ctime = CURRENT_TIME;
+		mark_inode_dirty(inode);
+		return 0;
+	default:
+		return -ENOTTY;
+	}
+	return 0;
+}
+
+/*
+** reiserfs_unpack
+** Function try to convert tail from direct item into indirect.
+** It set up nopack attribute in the inode.u.reiserfs_i.nopack
+*/
+int reiserfs_unpack (struct inode * inode, struct file * filp)
+{
+    int retval = 0;
+    int index ;
+    struct page *page ;
+    unsigned long write_from ;
+    unsigned long blocksize = inode->i_sb->s_blocksize ;
+    	
+    if (inode->i_size == 0) {
+        inode->u.reiserfs_i.i_flags |= i_nopack_mask;
+        return 0 ;
+    }
+    /* ioctl already done */
+    if (inode->u.reiserfs_i.i_flags & i_nopack_mask) {
+        return 0 ;
+    }
+    lock_kernel();
+
+    /* we need to make sure nobody is changing the file size beneath
+    ** us
+    */
+    down(&inode->i_sem) ;
+
+    write_from = inode->i_size & (blocksize - 1) ;
+    /* if we are on a block boundary, we are already unpacked.  */
+    if ( write_from == 0) {
+	inode->u.reiserfs_i.i_flags |= i_nopack_mask;
+	goto out ;
+    }
+
+    /* we unpack by finding the page with the tail, and calling
+    ** reiserfs_prepare_write on that page.  This will force a 
+    ** reiserfs_get_block to unpack the tail for us.
+    */
+    index = inode->i_size >> PAGE_CACHE_SHIFT ;
+    page = grab_cache_page(inode->i_mapping, index) ;
+    retval = -ENOMEM;
+    if (!page) {
+        goto out ;
+    }
+    retval = reiserfs_prepare_write(NULL, page, write_from, blocksize) ;
+    if (retval)
+        goto out_unlock ;
+
+    /* conversion can change page contents, must flush */
+    flush_dcache_page(page) ;
+    inode->u.reiserfs_i.i_flags |= i_nopack_mask;
+    kunmap(page) ; /* mapped by prepare_write */
+
+out_unlock:
+    UnlockPage(page) ;
+    page_cache_release(page) ;
+
+out:
+    up(&inode->i_sem) ;
+    unlock_kernel();    
+    return retval;
+}
diff --git a/fs/reiserfs/item_ops.c b/fs/reiserfs/item_ops.c
new file mode 100644
index 00000000000000..faa4a2138f3127
--- /dev/null
+++ b/fs/reiserfs/item_ops.c
@@ -0,0 +1,789 @@
+/*
+ * Copyright 2000-2002 by Hans Reiser, licensing governed by reiserfs/README
+ */
+
+#include <linux/sched.h>
+#include <linux/reiserfs_fs.h>
+
+// this contains item handlers for old item types: sd, direct,
+// indirect, directory
+
+/* and where are the comments? how about saying where we can find an
+   explanation of each item handler method? -Hans */
+
+//////////////////////////////////////////////////////////////////////////////
+// stat data functions
+//
+static int sd_bytes_number (struct item_head * ih, int block_size)
+{
+  return 0;
+}
+
+static void sd_decrement_key (struct cpu_key * key)
+{
+    key->on_disk_key.k_objectid --;
+    set_cpu_key_k_type (key, TYPE_ANY);
+    set_cpu_key_k_offset(key, (loff_t)(-1));
+}
+
+static int sd_is_left_mergeable (struct key * key, unsigned long bsize)
+{
+    return 0;
+}
+
+
+
+static char * print_time (time_t t)
+{
+    static char timebuf[256];
+
+    sprintf (timebuf, "%ld", t);
+    return timebuf;
+}
+
+
+static void sd_print_item (struct item_head * ih, char * item)
+{
+    printk ("\tmode | size | nlinks | first direct | mtime\n");
+    if (stat_data_v1 (ih)) {
+      	struct stat_data_v1 * sd = (struct stat_data_v1 *)item;
+
+	printk ("\t0%-6o | %6u | %2u | %d | %s\n", sd_v1_mode(sd),
+                sd_v1_size(sd), sd_v1_nlink(sd), sd_v1_first_direct_byte(sd),
+                print_time( sd_v1_mtime(sd) ) );
+    } else {
+	struct stat_data * sd = (struct stat_data *)item;
+
+	printk ("\t0%-6o | %6Lu | %2u | %d | %s\n", sd_v2_mode(sd),
+            (unsigned long long)sd_v2_size(sd), sd_v2_nlink(sd),
+            sd_v2_rdev(sd), print_time(sd_v2_mtime(sd)));
+    }
+}
+
+static void sd_check_item (struct item_head * ih, char * item)
+{
+    // FIXME: type something here!
+}
+
+
+static int sd_create_vi (struct virtual_node * vn,
+			 struct virtual_item * vi, 
+			 int is_affected, 
+			 int insert_size)
+{
+    vi->vi_index = TYPE_STAT_DATA;
+    //vi->vi_type |= VI_TYPE_STAT_DATA;// not needed?
+    return 0;
+}
+
+
+static int sd_check_left (struct virtual_item * vi, int free, 
+			  int start_skip, int end_skip)
+{
+    if (start_skip || end_skip)
+	BUG ();
+    return -1;
+}
+
+
+static int sd_check_right (struct virtual_item * vi, int free)
+{
+    return -1;
+}
+
+static int sd_part_size (struct virtual_item * vi, int first, int count)
+{
+    if (count)
+	BUG ();
+    return 0;
+}
+
+static int sd_unit_num (struct virtual_item * vi)
+{
+    return vi->vi_item_len - IH_SIZE;
+}
+
+
+static void sd_print_vi (struct virtual_item * vi)
+{
+    reiserfs_warning (NULL, "STATDATA, index %d, type 0x%x, %h\n", 
+		      vi->vi_index, vi->vi_type, vi->vi_ih);
+}
+
+struct item_operations stat_data_ops = {
+    sd_bytes_number,
+    sd_decrement_key,
+    sd_is_left_mergeable,
+    sd_print_item,
+    sd_check_item,
+
+    sd_create_vi,
+    sd_check_left,
+    sd_check_right,
+    sd_part_size,
+    sd_unit_num,
+    sd_print_vi
+};
+
+
+
+//////////////////////////////////////////////////////////////////////////////
+// direct item functions
+//
+static int direct_bytes_number (struct item_head * ih, int block_size)
+{
+  return ih_item_len(ih);
+}
+
+
+// FIXME: this should probably switch to indirect as well
+static void direct_decrement_key (struct cpu_key * key)
+{
+    cpu_key_k_offset_dec (key);
+    if (cpu_key_k_offset (key) == 0)
+	set_cpu_key_k_type (key, TYPE_STAT_DATA);	
+}
+
+
+static int direct_is_left_mergeable (struct key * key, unsigned long bsize)
+{
+    int version = le_key_version (key);
+    return ((le_key_k_offset (version, key) & (bsize - 1)) != 1);
+}
+
+
+static void direct_print_item (struct item_head * ih, char * item)
+{
+    int j = 0;
+
+//    return;
+    printk ("\"");
+    while (j < ih_item_len(ih))
+	printk ("%c", item[j++]);
+    printk ("\"\n");
+}
+
+
+static void direct_check_item (struct item_head * ih, char * item)
+{
+    // FIXME: type something here!
+}
+
+
+static int direct_create_vi (struct virtual_node * vn,
+			     struct virtual_item * vi, 
+			     int is_affected, 
+			     int insert_size)
+{
+    vi->vi_index = TYPE_DIRECT;
+    //vi->vi_type |= VI_TYPE_DIRECT;
+    return 0;
+}
+
+static int direct_check_left (struct virtual_item * vi, int free,
+			      int start_skip, int end_skip)
+{
+    int bytes;
+
+    bytes = free - free % 8;
+    return bytes ?: -1;    
+}
+
+
+static int direct_check_right (struct virtual_item * vi, int free)
+{
+    return direct_check_left (vi, free, 0, 0);
+}
+
+static int direct_part_size (struct virtual_item * vi, int first, int count)
+{
+    return count;
+}
+
+
+static int direct_unit_num (struct virtual_item * vi)
+{
+    return vi->vi_item_len - IH_SIZE;
+}
+
+
+static void direct_print_vi (struct virtual_item * vi)
+{
+    reiserfs_warning (NULL, "DIRECT, index %d, type 0x%x, %h\n", 
+		      vi->vi_index, vi->vi_type, vi->vi_ih);
+}
+
+struct item_operations direct_ops = {
+    direct_bytes_number,
+    direct_decrement_key,
+    direct_is_left_mergeable,
+    direct_print_item,
+    direct_check_item,
+
+    direct_create_vi,
+    direct_check_left,
+    direct_check_right,
+    direct_part_size,
+    direct_unit_num,
+    direct_print_vi
+};
+
+
+
+//////////////////////////////////////////////////////////////////////////////
+// indirect item functions
+//
+
+static int indirect_bytes_number (struct item_head * ih, int block_size)
+{
+  return ih_item_len(ih) / UNFM_P_SIZE * block_size; //- get_ih_free_space (ih);
+}
+
+
+// decrease offset, if it becomes 0, change type to stat data
+static void indirect_decrement_key (struct cpu_key * key)
+{
+    cpu_key_k_offset_dec (key);
+    if (cpu_key_k_offset (key) == 0)
+	set_cpu_key_k_type (key, TYPE_STAT_DATA);
+}
+
+
+// if it is not first item of the body, then it is mergeable
+static int indirect_is_left_mergeable (struct key * key, unsigned long bsize)
+{
+    int version = le_key_version (key);
+    return (le_key_k_offset (version, key) != 1);
+}
+
+
+// printing of indirect item
+static void start_new_sequence (__u32 * start, int * len, __u32 new)
+{
+    *start = new;
+    *len = 1;
+}
+
+
+static int sequence_finished (__u32 start, int * len, __u32 new)
+{
+    if (start == INT_MAX)
+	return 1;
+
+    if (start == 0 && new == 0) {
+	(*len) ++;
+	return 0;
+    }
+    if (start != 0 && (start + *len) == new) {
+	(*len) ++;
+	return 0;
+    }
+    return 1;
+}
+
+static void print_sequence (__u32 start, int len)
+{
+    if (start == INT_MAX)
+	return;
+
+    if (len == 1)
+	printk (" %d", start);
+    else
+	printk (" %d(%d)", start, len);
+}
+
+
+static void indirect_print_item (struct item_head * ih, char * item)
+{
+    int j;
+    __u32 * unp, prev = INT_MAX;
+    int num;
+
+    unp = (__u32 *)item;
+
+    if (ih_item_len(ih) % UNFM_P_SIZE)
+	printk ("indirect_print_item: invalid item len");  
+
+    printk ("%d pointers\n[ ", (int)I_UNFM_NUM (ih));
+    for (j = 0; j < I_UNFM_NUM (ih); j ++) {
+	if (sequence_finished (prev, &num, get_block_num(unp, j))) {
+	    print_sequence (prev, num);
+	    start_new_sequence (&prev, &num, get_block_num(unp, j));
+	}
+    }
+    print_sequence (prev, num);
+    printk ("]\n");
+}
+
+static void indirect_check_item (struct item_head * ih, char * item)
+{
+    // FIXME: type something here!
+}
+
+
+static int indirect_create_vi (struct virtual_node * vn,
+			       struct virtual_item * vi, 
+			       int is_affected, 
+			       int insert_size)
+{
+    vi->vi_index = TYPE_INDIRECT;
+    //vi->vi_type |= VI_TYPE_INDIRECT;
+    return 0;
+}
+
+static int indirect_check_left (struct virtual_item * vi, int free,
+				int start_skip, int end_skip)
+{
+    int bytes;
+
+    bytes = free - free % UNFM_P_SIZE;
+    return bytes ?: -1;    
+}
+
+
+static int indirect_check_right (struct virtual_item * vi, int free)
+{
+    return indirect_check_left (vi, free, 0, 0);
+}
+
+
+
+// return size in bytes of 'units' units. If first == 0 - calculate from the head (left), otherwise - from tail (right)
+static int indirect_part_size (struct virtual_item * vi, int first, int units)
+{
+    // unit of indirect item is byte (yet)
+    return units;
+}
+
+static int indirect_unit_num (struct virtual_item * vi)
+{
+    // unit of indirect item is byte (yet)
+    return vi->vi_item_len - IH_SIZE;
+}
+
+static void indirect_print_vi (struct virtual_item * vi)
+{
+    reiserfs_warning (NULL, "INDIRECT, index %d, type 0x%x, %h\n", 
+		      vi->vi_index, vi->vi_type, vi->vi_ih);
+}
+
+struct item_operations indirect_ops = {
+    indirect_bytes_number,
+    indirect_decrement_key,
+    indirect_is_left_mergeable,
+    indirect_print_item,
+    indirect_check_item,
+
+    indirect_create_vi,
+    indirect_check_left,
+    indirect_check_right,
+    indirect_part_size,
+    indirect_unit_num,
+    indirect_print_vi
+};
+
+
+//////////////////////////////////////////////////////////////////////////////
+// direntry functions
+//
+
+
+static int direntry_bytes_number (struct item_head * ih, int block_size)
+{
+    reiserfs_warning (NULL, "vs-16090: direntry_bytes_number: "
+		      "bytes number is asked for direntry");
+    return 0;
+}
+
+static void direntry_decrement_key (struct cpu_key * key)
+{
+    cpu_key_k_offset_dec (key);
+    if (cpu_key_k_offset (key) == 0)
+	set_cpu_key_k_type (key, TYPE_STAT_DATA);	
+}
+
+
+static int direntry_is_left_mergeable (struct key * key, unsigned long bsize)
+{
+    if (le32_to_cpu (key->u.k_offset_v1.k_offset) == DOT_OFFSET)
+	return 0;
+    return 1;
+	
+}
+
+
+static void direntry_print_item (struct item_head * ih, char * item)
+{
+    int i;
+    int namelen;
+    struct reiserfs_de_head * deh;
+    char * name;
+    static char namebuf [80];
+
+
+    printk ("\n # %-15s%-30s%-15s%-15s%-15s\n", "Name", "Key of pointed object", "Hash", "Gen number", "Status");
+
+    deh = (struct reiserfs_de_head *)item;
+
+    for (i = 0; i < I_ENTRY_COUNT (ih); i ++, deh ++) {
+	namelen = (i ? (deh_location(deh - 1)) : ih_item_len(ih)) - deh_location(deh);
+	name = item + deh_location(deh);
+	if (name[namelen-1] == 0)
+	  namelen = strlen (name);
+	namebuf[0] = '"';
+	if (namelen > sizeof (namebuf) - 3) {
+	    strncpy (namebuf + 1, name, sizeof (namebuf) - 3);
+	    namebuf[sizeof (namebuf) - 2] = '"';
+	    namebuf[sizeof (namebuf) - 1] = 0;
+	} else {
+	    memcpy (namebuf + 1, name, namelen);
+	    namebuf[namelen + 1] = '"';
+	    namebuf[namelen + 2] = 0;
+	}
+
+	printk ("%d:  %-15s%-15d%-15d%-15Ld%-15Ld(%s)\n", 
+		i, namebuf,
+		deh_dir_id(deh), deh_objectid(deh),
+		GET_HASH_VALUE (deh_offset (deh)), GET_GENERATION_NUMBER ((deh_offset (deh))),
+		(de_hidden (deh)) ? "HIDDEN" : "VISIBLE");
+    }
+}
+
+
+static void direntry_check_item (struct item_head * ih, char * item)
+{
+    int i;
+    struct reiserfs_de_head * deh;
+
+    // FIXME: type something here!
+    deh = (struct reiserfs_de_head *)item;
+    for (i = 0; i < I_ENTRY_COUNT (ih); i ++, deh ++) {
+	;
+    }
+}
+
+
+
+#define DIRENTRY_VI_FIRST_DIRENTRY_ITEM 1
+
+/*
+ * function returns old entry number in directory item in real node
+ * using new entry number in virtual item in virtual node */
+static inline int old_entry_num (int is_affected, int virtual_entry_num, int pos_in_item, int mode)
+{
+    if ( mode == M_INSERT || mode == M_DELETE)
+	return virtual_entry_num;
+    
+    if (!is_affected)
+	/* cut or paste is applied to another item */
+	return virtual_entry_num;
+
+    if (virtual_entry_num < pos_in_item)
+	return virtual_entry_num;
+
+    if (mode == M_CUT)
+	return virtual_entry_num + 1;
+
+    RFALSE( mode != M_PASTE || virtual_entry_num == 0,
+	    "vs-8015: old_entry_num: mode must be M_PASTE (mode = \'%c\'", mode);
+    
+    return virtual_entry_num - 1;
+}
+
+
+
+
+/* Create an array of sizes of directory entries for virtual
+   item. Return space used by an item. FIXME: no control over
+   consuming of space used by this item handler */
+static int direntry_create_vi (struct virtual_node * vn,
+			       struct virtual_item * vi, 
+			       int is_affected, 
+			       int insert_size)
+{
+    struct direntry_uarea * dir_u = vi->vi_uarea;
+    int i, j;
+    int size = sizeof (struct direntry_uarea);
+    struct reiserfs_de_head * deh;
+  
+    vi->vi_index = TYPE_DIRENTRY;
+
+    if (!(vi->vi_ih) || !vi->vi_item)
+	BUG ();
+
+
+    dir_u->flags = 0;
+    if (le_ih_k_offset (vi->vi_ih) == DOT_OFFSET)
+	dir_u->flags |= DIRENTRY_VI_FIRST_DIRENTRY_ITEM;
+
+    deh = (struct reiserfs_de_head *)(vi->vi_item);
+    
+    
+    /* virtual directory item have this amount of entry after */
+    dir_u->entry_count = ih_entry_count (vi->vi_ih) + 
+	((is_affected) ? ((vn->vn_mode == M_CUT) ? -1 :
+			  (vn->vn_mode == M_PASTE ? 1 : 0)) : 0);
+    
+    for (i = 0; i < dir_u->entry_count; i ++) {
+	j = old_entry_num (is_affected, i, vn->vn_pos_in_item, vn->vn_mode);
+        dir_u->entry_sizes[i] = (j ? deh_location( &(deh[j - 1]) ) :
+                                ih_item_len (vi->vi_ih)) -
+                                deh_location( &(deh[j])) + DEH_SIZE;
+    }
+
+    size += (dir_u->entry_count * sizeof (short));
+    
+    /* set size of pasted entry */
+    if (is_affected && vn->vn_mode == M_PASTE)
+	dir_u->entry_sizes[vn->vn_pos_in_item] = insert_size;
+
+
+#ifdef CONFIG_REISERFS_CHECK
+    /* compare total size of entries with item length */
+    {
+	int k, l;
+    
+	l = 0;
+	for (k = 0; k < dir_u->entry_count; k ++)
+	    l += dir_u->entry_sizes[k];
+    
+	if (l + IH_SIZE != vi->vi_item_len + 
+	    ((is_affected && (vn->vn_mode == M_PASTE || vn->vn_mode == M_CUT)) ? insert_size : 0) ) {
+	    reiserfs_panic (0, "vs-8025: set_entry_sizes: (mode==%c, insert_size==%d), invalid length of directory item",
+			    vn->vn_mode, insert_size);
+	}
+    }
+#endif
+
+    return size;
+
+
+}
+
+
+//
+// return number of entries which may fit into specified amount of
+// free space, or -1 if free space is not enough even for 1 entry
+//
+static int direntry_check_left (struct virtual_item * vi, int free,
+				int start_skip, int end_skip)
+{
+    int i;
+    int entries = 0;
+    struct direntry_uarea * dir_u = vi->vi_uarea;
+
+    for (i = start_skip; i < dir_u->entry_count - end_skip; i ++) {
+	if (dir_u->entry_sizes[i] > free)
+	    /* i-th entry doesn't fit into the remaining free space */
+	    break;
+		  
+	free -= dir_u->entry_sizes[i];
+	entries ++;
+    }
+
+    if (entries == dir_u->entry_count) {
+	printk ("free spze %d, entry_count %d\n", free, dir_u->entry_count);
+	BUG ();
+    }
+
+    /* "." and ".." can not be separated from each other */
+    if (start_skip == 0 && (dir_u->flags & DIRENTRY_VI_FIRST_DIRENTRY_ITEM) && entries < 2)
+	entries = 0;
+    
+    return entries ?: -1;
+}
+
+
+static int direntry_check_right (struct virtual_item * vi, int free)
+{
+    int i;
+    int entries = 0;
+    struct direntry_uarea * dir_u = vi->vi_uarea;
+    
+    for (i = dir_u->entry_count - 1; i >= 0; i --) {
+	if (dir_u->entry_sizes[i] > free)
+	    /* i-th entry doesn't fit into the remaining free space */
+	    break;
+	
+	free -= dir_u->entry_sizes[i];
+	entries ++;
+    }
+    if (entries == dir_u->entry_count)
+	BUG ();
+
+    /* "." and ".." can not be separated from each other */
+    if ((dir_u->flags & DIRENTRY_VI_FIRST_DIRENTRY_ITEM) && entries > dir_u->entry_count - 2)
+	entries = dir_u->entry_count - 2;
+
+    return entries ?: -1;
+}
+
+
+/* sum of entry sizes between from-th and to-th entries including both edges */
+static int direntry_part_size (struct virtual_item * vi, int first, int count)
+{
+    int i, retval;
+    int from, to;
+    struct direntry_uarea * dir_u = vi->vi_uarea;
+    
+    retval = 0;
+    if (first == 0)
+	from = 0;
+    else
+	from = dir_u->entry_count - count;
+    to = from + count - 1;
+
+    for (i = from; i <= to; i ++)
+	retval += dir_u->entry_sizes[i];
+
+    return retval;
+}
+
+static int direntry_unit_num (struct virtual_item * vi)
+{
+    struct direntry_uarea * dir_u = vi->vi_uarea;
+    
+    return dir_u->entry_count;
+}
+
+
+
+static void direntry_print_vi (struct virtual_item * vi)
+{
+    int i;
+    struct direntry_uarea * dir_u = vi->vi_uarea;
+
+    reiserfs_warning (NULL, "DIRENTRY, index %d, type 0x%x, %h, flags 0x%x\n", 
+		      vi->vi_index, vi->vi_type, vi->vi_ih, dir_u->flags);
+    printk ("%d entries: ", dir_u->entry_count);
+    for (i = 0; i < dir_u->entry_count; i ++)
+	printk ("%d ", dir_u->entry_sizes[i]);
+    printk ("\n");
+}
+
+struct item_operations direntry_ops = {
+    direntry_bytes_number,
+    direntry_decrement_key,
+    direntry_is_left_mergeable,
+    direntry_print_item,
+    direntry_check_item,
+
+    direntry_create_vi,
+    direntry_check_left,
+    direntry_check_right,
+    direntry_part_size,
+    direntry_unit_num,
+    direntry_print_vi
+};
+
+
+//////////////////////////////////////////////////////////////////////////////
+// Error catching functions to catch errors caused by incorrect item types.
+//
+static int errcatch_bytes_number (struct item_head * ih, int block_size)
+{
+    reiserfs_warning (NULL, "green-16001: Invalid item type observed, run fsck ASAP\n");
+    return 0;
+}
+
+static void errcatch_decrement_key (struct cpu_key * key)
+{
+    reiserfs_warning (NULL, "green-16002: Invalid item type observed, run fsck ASAP\n");
+}
+
+
+static int errcatch_is_left_mergeable (struct key * key, unsigned long bsize)
+{
+    reiserfs_warning (NULL, "green-16003: Invalid item type observed, run fsck ASAP\n");
+    return 0;
+}
+
+
+static void errcatch_print_item (struct item_head * ih, char * item)
+{
+    reiserfs_warning (NULL, "green-16004: Invalid item type observed, run fsck ASAP\n");
+}
+
+
+static void errcatch_check_item (struct item_head * ih, char * item)
+{
+    reiserfs_warning (NULL, "green-16005: Invalid item type observed, run fsck ASAP\n");
+}
+
+static int errcatch_create_vi (struct virtual_node * vn,
+			       struct virtual_item * vi, 
+			       int is_affected, 
+			       int insert_size)
+{
+    reiserfs_warning (NULL, "green-16006: Invalid item type observed, run fsck ASAP\n");
+    return 0;	// We might return -1 here as well, but it won't help as create_virtual_node() from where
+		// this operation is called from is of return type void.
+}
+
+static int errcatch_check_left (struct virtual_item * vi, int free,
+				int start_skip, int end_skip)
+{
+    reiserfs_warning (NULL, "green-16007: Invalid item type observed, run fsck ASAP\n");
+    return -1;
+}
+
+
+static int errcatch_check_right (struct virtual_item * vi, int free)
+{
+    reiserfs_warning (NULL, "green-16008: Invalid item type observed, run fsck ASAP\n");
+    return -1;
+}
+
+static int errcatch_part_size (struct virtual_item * vi, int first, int count)
+{
+    reiserfs_warning (NULL, "green-16009: Invalid item type observed, run fsck ASAP\n");
+    return 0;
+}
+
+static int errcatch_unit_num (struct virtual_item * vi)
+{
+    reiserfs_warning (NULL, "green-16010: Invalid item type observed, run fsck ASAP\n");
+    return 0;
+}
+
+static void errcatch_print_vi (struct virtual_item * vi)
+{
+    reiserfs_warning (NULL, "green-16011: Invalid item type observed, run fsck ASAP\n");
+}
+
+struct item_operations errcatch_ops = {
+    errcatch_bytes_number,
+    errcatch_decrement_key,
+    errcatch_is_left_mergeable,
+    errcatch_print_item,
+    errcatch_check_item,
+
+    errcatch_create_vi,
+    errcatch_check_left,
+    errcatch_check_right,
+    errcatch_part_size,
+    errcatch_unit_num,
+    errcatch_print_vi
+};
+
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//
+#if ! (TYPE_STAT_DATA == 0 && TYPE_INDIRECT == 1 && TYPE_DIRECT == 2 && TYPE_DIRENTRY == 3)
+  do not compile
+#endif
+
+struct item_operations * item_ops [TYPE_ANY + 1] = {
+  &stat_data_ops,
+  &indirect_ops,
+  &direct_ops,
+  &direntry_ops,
+  NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+  &errcatch_ops		/* This is to catch errors with invalid type (15th entry for TYPE_ANY) */
+};
+
+
+
+
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
new file mode 100644
index 00000000000000..80a018f4426bd1
--- /dev/null
+++ b/fs/reiserfs/journal.c
@@ -0,0 +1,3274 @@
+/*
+** Write ahead logging implementation copyright Chris Mason 2000
+**
+** The background commits make this code very interelated, and 
+** overly complex.  I need to rethink things a bit....The major players:
+**
+** journal_begin -- call with the number of blocks you expect to log.  
+**                  If the current transaction is too
+** 		    old, it will block until the current transaction is 
+** 		    finished, and then start a new one.
+**		    Usually, your transaction will get joined in with 
+**                  previous ones for speed.
+**
+** journal_join  -- same as journal_begin, but won't block on the current 
+**                  transaction regardless of age.  Don't ever call
+**                  this.  Ever.  There are only two places it should be 
+**                  called from, and they are both inside this file.
+**
+** journal_mark_dirty -- adds blocks into this transaction.  clears any flags 
+**                       that might make them get sent to disk
+**                       and then marks them BH_JDirty.  Puts the buffer head 
+**                       into the current transaction hash.  
+**
+** journal_end -- if the current transaction is batchable, it does nothing
+**                   otherwise, it could do an async/synchronous commit, or
+**                   a full flush of all log and real blocks in the 
+**                   transaction.
+**
+** flush_old_commits -- if the current transaction is too old, it is ended and 
+**                      commit blocks are sent to disk.  Forces commit blocks 
+**                      to disk for all backgrounded commits that have been 
+**                      around too long.
+**		     -- Note, if you call this as an immediate flush from 
+**		        from within kupdate, it will ignore the immediate flag
+**
+** The commit thread -- a writer process for async commits.  It allows a 
+**                      a process to request a log flush on a task queue.
+**                      the commit will happen once the commit thread wakes up.
+**                      The benefit here is the writer (with whatever
+**                      related locks it has) doesn't have to wait for the
+**                      log blocks to hit disk if it doesn't want to.
+*/
+
+#include <linux/config.h>
+#include <asm/uaccess.h>
+#include <asm/system.h>
+
+#include <linux/sched.h>
+#include <asm/semaphore.h>
+
+#include <linux/vmalloc.h>
+#include <linux/reiserfs_fs.h>
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/fcntl.h>
+#include <linux/locks.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <linux/smp_lock.h>
+
+/* the number of mounted filesystems.  This is used to decide when to
+** start and kill the commit thread
+*/
+static int reiserfs_mounted_fs_count = 0 ;
+
+/* wake this up when you add something to the commit thread task queue */
+DECLARE_WAIT_QUEUE_HEAD(reiserfs_commit_thread_wait) ;
+
+/* wait on this if you need to be sure you task queue entries have been run */
+static DECLARE_WAIT_QUEUE_HEAD(reiserfs_commit_thread_done) ;
+DECLARE_TASK_QUEUE(reiserfs_commit_thread_tq) ;
+
+#define JOURNAL_TRANS_HALF 1018   /* must be correct to keep the desc and commit
+				     structs at 4k */
+#define BUFNR 64 /*read ahead */
+
+/* cnode stat bits.  Move these into reiserfs_fs.h */
+
+#define BLOCK_FREED 2		/* this block was freed, and can't be written.  */
+#define BLOCK_FREED_HOLDER 3    /* this block was freed during this transaction, and can't be written */
+
+#define BLOCK_NEEDS_FLUSH 4	/* used in flush_journal_list */
+
+/* flags for do_journal_end */
+#define FLUSH_ALL   1		/* flush commit and real blocks */
+#define COMMIT_NOW  2		/* end and commit this transaction */
+#define WAIT        4		/* wait for the log blocks to hit the disk*/
+
+/* state bits for the journal */
+#define WRITERS_BLOCKED 1      /* set when new writers not allowed */
+
+static int do_journal_end(struct reiserfs_transaction_handle *,struct super_block *,unsigned long nblocks,int flags) ;
+static int flush_journal_list(struct super_block *s, struct reiserfs_journal_list *jl, int flushall) ;
+static int flush_commit_list(struct super_block *s, struct reiserfs_journal_list *jl, int flushall)  ;
+static int can_dirty(struct reiserfs_journal_cnode *cn) ;
+static int remove_from_journal_list(struct super_block *s, struct reiserfs_journal_list *jl, struct buffer_head *bh, int remove_freed);
+static int journal_join(struct reiserfs_transaction_handle *th, struct super_block *p_s_sb, unsigned long nblocks);
+static int release_journal_dev( struct super_block *super,
+				struct reiserfs_journal *journal );
+static void init_journal_hash(struct super_block *p_s_sb) {
+  memset(SB_JOURNAL(p_s_sb)->j_hash_table, 0, JOURNAL_HASH_SIZE * sizeof(struct reiserfs_journal_cnode *)) ;
+}
+
+/*
+** clears BH_Dirty and sticks the buffer on the clean list.  Called because I can't allow refile_buffer to
+** make schedule happen after I've freed a block.  Look at remove_from_transaction and journal_mark_freed for
+** more details.
+*/
+static int reiserfs_clean_and_file_buffer(struct buffer_head *bh) {
+  if (bh) {
+    clear_bit(BH_Dirty, &bh->b_state) ;
+    refile_buffer(bh) ;
+  }
+  return 0 ;
+}
+
+static struct reiserfs_bitmap_node *
+allocate_bitmap_node(struct super_block *p_s_sb) {
+  struct reiserfs_bitmap_node *bn ;
+  static int id = 0 ;
+
+  bn = reiserfs_kmalloc(sizeof(struct reiserfs_bitmap_node), GFP_NOFS, p_s_sb) ;
+  if (!bn) {
+    return NULL ;
+  }
+  bn->data = reiserfs_kmalloc(p_s_sb->s_blocksize, GFP_NOFS, p_s_sb) ;
+  if (!bn->data) {
+    reiserfs_kfree(bn, sizeof(struct reiserfs_bitmap_node), p_s_sb) ;
+    return NULL ;
+  }
+  bn->id = id++ ;
+  memset(bn->data, 0, p_s_sb->s_blocksize) ;
+  INIT_LIST_HEAD(&bn->list) ;
+  return bn ;
+}
+
+static struct reiserfs_bitmap_node *
+get_bitmap_node(struct super_block *p_s_sb) {
+  struct reiserfs_bitmap_node *bn = NULL;
+  struct list_head *entry = SB_JOURNAL(p_s_sb)->j_bitmap_nodes.next ;
+
+  SB_JOURNAL(p_s_sb)->j_used_bitmap_nodes++ ;
+repeat:
+
+  if(entry != &SB_JOURNAL(p_s_sb)->j_bitmap_nodes) {
+    bn = list_entry(entry, struct reiserfs_bitmap_node, list) ;
+    list_del(entry) ;
+    memset(bn->data, 0, p_s_sb->s_blocksize) ;
+    SB_JOURNAL(p_s_sb)->j_free_bitmap_nodes-- ;
+    return bn ;
+  }
+  bn = allocate_bitmap_node(p_s_sb) ;
+  if (!bn) {
+    yield();
+    goto repeat ;
+  }
+  return bn ;
+}
+static inline void free_bitmap_node(struct super_block *p_s_sb,
+                                    struct reiserfs_bitmap_node *bn) {
+  SB_JOURNAL(p_s_sb)->j_used_bitmap_nodes-- ;
+  if (SB_JOURNAL(p_s_sb)->j_free_bitmap_nodes > REISERFS_MAX_BITMAP_NODES) {
+    reiserfs_kfree(bn->data, p_s_sb->s_blocksize, p_s_sb) ;
+    reiserfs_kfree(bn, sizeof(struct reiserfs_bitmap_node), p_s_sb) ;
+  } else {
+    list_add(&bn->list, &SB_JOURNAL(p_s_sb)->j_bitmap_nodes) ;
+    SB_JOURNAL(p_s_sb)->j_free_bitmap_nodes++ ;
+  }
+}
+
+static void allocate_bitmap_nodes(struct super_block *p_s_sb) {
+  int i ;
+  struct reiserfs_bitmap_node *bn = NULL ;
+  for (i = 0 ; i < REISERFS_MIN_BITMAP_NODES ; i++) {
+    bn = allocate_bitmap_node(p_s_sb) ;
+    if (bn) {
+      list_add(&bn->list, &SB_JOURNAL(p_s_sb)->j_bitmap_nodes) ;
+      SB_JOURNAL(p_s_sb)->j_free_bitmap_nodes++ ;
+    } else {
+      break ; // this is ok, we'll try again when more are needed 
+    }
+  }
+}
+
+static int set_bit_in_list_bitmap(struct super_block *p_s_sb, int block,
+                                  struct reiserfs_list_bitmap *jb) {
+  int bmap_nr = block / (p_s_sb->s_blocksize << 3) ;
+  int bit_nr = block % (p_s_sb->s_blocksize << 3) ;
+
+  if (!jb->bitmaps[bmap_nr]) {
+    jb->bitmaps[bmap_nr] = get_bitmap_node(p_s_sb) ;
+  }
+  set_bit(bit_nr, (unsigned long *)jb->bitmaps[bmap_nr]->data) ;
+  return 0 ;
+}
+
+static void cleanup_bitmap_list(struct super_block *p_s_sb,
+                                struct reiserfs_list_bitmap *jb) {
+  int i;
+  if (jb->bitmaps == NULL)
+	return ;
+
+  for (i = 0 ; i < SB_BMAP_NR(p_s_sb) ; i++) {
+    if (jb->bitmaps[i]) {
+      free_bitmap_node(p_s_sb, jb->bitmaps[i]) ;
+      jb->bitmaps[i] = NULL ;
+    }
+  }
+}
+
+/*
+** only call this on FS unmount.
+*/
+static int free_list_bitmaps(struct super_block *p_s_sb,
+                             struct reiserfs_list_bitmap *jb_array) {
+  int i ;
+  struct reiserfs_list_bitmap *jb ;
+  for (i = 0 ; i < JOURNAL_NUM_BITMAPS ; i++) {
+    jb = jb_array + i ;
+    jb->journal_list = NULL ;
+    cleanup_bitmap_list(p_s_sb, jb) ;
+    vfree(jb->bitmaps) ;
+    jb->bitmaps = NULL ;
+  }
+  return 0;
+}
+
+static int free_bitmap_nodes(struct super_block *p_s_sb) {
+  struct list_head *next = SB_JOURNAL(p_s_sb)->j_bitmap_nodes.next ;
+  struct reiserfs_bitmap_node *bn ;
+
+  while(next != &SB_JOURNAL(p_s_sb)->j_bitmap_nodes) {
+    bn = list_entry(next, struct reiserfs_bitmap_node, list) ;
+    list_del(next) ;
+    reiserfs_kfree(bn->data, p_s_sb->s_blocksize, p_s_sb) ;
+    reiserfs_kfree(bn, sizeof(struct reiserfs_bitmap_node), p_s_sb) ;
+    next = SB_JOURNAL(p_s_sb)->j_bitmap_nodes.next ;
+    SB_JOURNAL(p_s_sb)->j_free_bitmap_nodes-- ;
+  }
+
+  return 0 ;
+}
+
+/*
+** get memory for JOURNAL_NUM_BITMAPS worth of bitmaps. 
+** jb_array is the array to be filled in.
+*/
+int reiserfs_allocate_list_bitmaps(struct super_block *p_s_sb,
+                                   struct reiserfs_list_bitmap *jb_array,
+				   int bmap_nr) {
+  int i ;
+  int failed = 0 ;
+  struct reiserfs_list_bitmap *jb ;
+  int mem = bmap_nr * sizeof(struct reiserfs_bitmap_node *) ;
+
+  for (i = 0 ; i < JOURNAL_NUM_BITMAPS ; i++) {
+    jb = jb_array + i ;
+    jb->journal_list = NULL ;
+    jb->bitmaps = vmalloc( mem ) ;
+    if (!jb->bitmaps) {
+      reiserfs_warning(p_s_sb, "clm-2000, unable to allocate bitmaps for journal lists\n") ;
+      failed = 1;   
+      break ;
+    }
+    memset(jb->bitmaps, 0, mem) ;
+  }
+  if (failed) {
+    free_list_bitmaps(p_s_sb, jb_array) ;
+    return -1 ;
+  }
+  return 0 ;
+}
+
+/*
+** find an available list bitmap.  If you can't find one, flush a commit list 
+** and try again
+*/
+static struct reiserfs_list_bitmap *
+get_list_bitmap(struct super_block *p_s_sb, struct reiserfs_journal_list *jl) {
+  int i,j ; 
+  struct reiserfs_list_bitmap *jb = NULL ;
+
+  for (j = 0 ; j < (JOURNAL_NUM_BITMAPS * 3) ; j++) {
+    i = SB_JOURNAL(p_s_sb)->j_list_bitmap_index ;
+    SB_JOURNAL(p_s_sb)->j_list_bitmap_index = (i + 1) % JOURNAL_NUM_BITMAPS ;
+    jb = SB_JOURNAL(p_s_sb)->j_list_bitmap + i ;
+    if (SB_JOURNAL(p_s_sb)->j_list_bitmap[i].journal_list) {
+      flush_commit_list(p_s_sb, SB_JOURNAL(p_s_sb)->j_list_bitmap[i].journal_list, 1) ;
+      if (!SB_JOURNAL(p_s_sb)->j_list_bitmap[i].journal_list) {
+	break ;
+      }
+    } else {
+      break ;
+    }
+  }
+  if (jb->journal_list) { /* double check to make sure if flushed correctly */
+    return NULL ;
+  }
+  jb->journal_list = jl ;
+  return jb ;
+}
+
+/* 
+** allocates a new chunk of X nodes, and links them all together as a list.
+** Uses the cnode->next and cnode->prev pointers
+** returns NULL on failure
+*/
+static struct reiserfs_journal_cnode *allocate_cnodes(int num_cnodes) {
+  struct reiserfs_journal_cnode *head ;
+  int i ;
+  if (num_cnodes <= 0) {
+    return NULL ;
+  }
+  head = vmalloc(num_cnodes * sizeof(struct reiserfs_journal_cnode)) ;
+  if (!head) {
+    return NULL ;
+  }
+  memset(head, 0, num_cnodes * sizeof(struct reiserfs_journal_cnode)) ;
+  head[0].prev = NULL ;
+  head[0].next = head + 1 ;
+  for (i = 1 ; i < num_cnodes; i++) {
+    head[i].prev = head + (i - 1) ;
+    head[i].next = head + (i + 1) ; /* if last one, overwrite it after the if */
+  }
+  head[num_cnodes -1].next = NULL ;
+  return head ;
+}
+
+/*
+** pulls a cnode off the free list, or returns NULL on failure 
+*/
+static struct reiserfs_journal_cnode *get_cnode(struct super_block *p_s_sb) {
+  struct reiserfs_journal_cnode *cn ;
+
+  reiserfs_check_lock_depth("get_cnode") ;
+
+  if (SB_JOURNAL(p_s_sb)->j_cnode_free <= 0) {
+    return NULL ;
+  }
+  SB_JOURNAL(p_s_sb)->j_cnode_used++ ;
+  SB_JOURNAL(p_s_sb)->j_cnode_free-- ;
+  cn = SB_JOURNAL(p_s_sb)->j_cnode_free_list ;
+  if (!cn) {
+    return cn ;
+  }
+  if (cn->next) {
+    cn->next->prev = NULL ;
+  }
+  SB_JOURNAL(p_s_sb)->j_cnode_free_list = cn->next ;
+  memset(cn, 0, sizeof(struct reiserfs_journal_cnode)) ;
+  return cn ;
+}
+
+/*
+** returns a cnode to the free list 
+*/
+static void free_cnode(struct super_block *p_s_sb, struct reiserfs_journal_cnode *cn) {
+
+  reiserfs_check_lock_depth("free_cnode") ;
+
+  SB_JOURNAL(p_s_sb)->j_cnode_used-- ;
+  SB_JOURNAL(p_s_sb)->j_cnode_free++ ;
+  /* memset(cn, 0, sizeof(struct reiserfs_journal_cnode)) ; */
+  cn->next = SB_JOURNAL(p_s_sb)->j_cnode_free_list ;
+  if (SB_JOURNAL(p_s_sb)->j_cnode_free_list) {
+    SB_JOURNAL(p_s_sb)->j_cnode_free_list->prev = cn ;
+  }
+  cn->prev = NULL ; /* not needed with the memset, but I might kill the memset, and forget to do this */
+  SB_JOURNAL(p_s_sb)->j_cnode_free_list = cn ;
+}
+
+static int clear_prepared_bits(struct buffer_head *bh) {
+  clear_bit(BH_JPrepared, &bh->b_state) ;
+  return 0 ;
+}
+
+/* buffer is in current transaction */
+inline int buffer_journaled(const struct buffer_head *bh) {
+  if (bh)
+    return test_bit(BH_JDirty, &((struct buffer_head *)bh)->b_state) ;
+  else
+    return 0 ;
+}
+
+/* disk block was taken off free list before being in a finished transation, or written to disk
+** journal_new blocks can be reused immediately, for any purpose
+*/ 
+inline int buffer_journal_new(const struct buffer_head *bh) {
+  if (bh) 
+    return test_bit(BH_JNew, &((struct buffer_head *)bh)->b_state) ;
+  else
+    return 0 ;
+}
+
+inline int mark_buffer_journal_new(struct buffer_head *bh) {
+  if (bh) {
+    set_bit(BH_JNew, &bh->b_state) ;
+  }
+  return 0 ;
+}
+
+inline int mark_buffer_not_journaled(struct buffer_head *bh) {
+  if (bh) 
+    clear_bit(BH_JDirty, &bh->b_state) ;
+  return 0 ;
+}
+
+/* utility function to force a BUG if it is called without the big
+** kernel lock held.  caller is the string printed just before calling BUG()
+*/
+void reiserfs_check_lock_depth(char *caller) {
+#ifdef CONFIG_SMP
+  if (current->lock_depth < 0) {
+    printk("%s called without kernel lock held\n", caller) ;
+    show_reiserfs_locks() ;
+    BUG() ;
+  }
+#else
+  ;
+#endif
+}
+
+/* return a cnode with same dev, block number and size in table, or null if not found */
+static inline struct reiserfs_journal_cnode *get_journal_hash_dev(struct reiserfs_journal_cnode **table,
+                                   				  kdev_t dev,long bl,int size) {
+  struct reiserfs_journal_cnode *cn ;
+  cn = journal_hash(table, dev, bl) ;
+  while(cn) {
+    if ((cn->blocknr == bl) && (cn->dev == dev))
+      return cn ;
+    cn = cn->hnext ;
+  }
+  return (struct reiserfs_journal_cnode *)0 ;
+}
+
+/* returns a cnode with same size, block number and dev as bh in the current transaction hash.  NULL if not found */
+static inline struct reiserfs_journal_cnode *get_journal_hash(struct super_block *p_s_sb, struct buffer_head *bh) {
+  struct reiserfs_journal_cnode *cn ;
+  if (bh) {
+    cn =  get_journal_hash_dev(SB_JOURNAL(p_s_sb)->j_hash_table, bh->b_dev, bh->b_blocknr, bh->b_size) ;
+  }
+  else {
+    return (struct reiserfs_journal_cnode *)0 ;
+  }
+  return cn ;
+}
+
+/* once upon a time, the journal would deadlock.  a lot.  Now, when
+** CONFIG_REISERFS_CHECK is defined, anytime someone enters a
+** transaction, it pushes itself into this ugly static list, and pops
+** itself off before calling journal_end.  I made a SysRq key to dump
+** the list, and tell me what the writers are when I'm deadlocked.  */
+
+				/* are you depending on the compiler
+                                   to optimize this function away
+                                   everywhere it is called? It is not
+                                   obvious how this works, but I
+                                   suppose debugging code need not be
+                                   clear.  -Hans */
+static char *journal_writers[512] ;
+int push_journal_writer(char *s) {
+#ifdef CONFIG_REISERFS_CHECK
+  int i ;
+  for (i = 0 ; i < 512 ; i++) {
+    if (!journal_writers[i]) {
+      journal_writers[i] = s ;
+      return i ;
+    }
+  }
+  return -1 ;
+#else
+  return 0 ;
+#endif
+}
+int pop_journal_writer(int index) {
+#ifdef CONFIG_REISERFS_CHECK
+  if (index >= 0) {
+    journal_writers[index] = NULL ;
+  }
+#endif
+  return 0 ;
+}
+
+int dump_journal_writers(void) {
+  int i ;
+  for (i = 0 ; i < 512 ; i++) {
+    if (journal_writers[i]) {
+      printk("%d: %s\n", i, journal_writers[i]) ;
+    }
+  }
+  return 0 ;
+}
+
+/*
+** this actually means 'can this block be reallocated yet?'.  If you set search_all, a block can only be allocated
+** if it is not in the current transaction, was not freed by the current transaction, and has no chance of ever
+** being overwritten by a replay after crashing.
+**
+** If you don't set search_all, a block can only be allocated if it is not in the current transaction.  Since deleting
+** a block removes it from the current transaction, this case should never happen.  If you don't set search_all, make
+** sure you never write the block without logging it.
+**
+** next_zero_bit is a suggestion about the next block to try for find_forward.
+** when bl is rejected because it is set in a journal list bitmap, we search
+** for the next zero bit in the bitmap that rejected bl.  Then, we return that
+** through next_zero_bit for find_forward to try.
+**
+** Just because we return something in next_zero_bit does not mean we won't
+** reject it on the next call to reiserfs_in_journal
+**
+*/
+int reiserfs_in_journal(struct super_block *p_s_sb, kdev_t dev, 
+                        int bmap_nr, int bit_nr, int size, int search_all, 
+			unsigned int *next_zero_bit) {
+  struct reiserfs_journal_cnode *cn ;
+  struct reiserfs_list_bitmap *jb ;
+  int i ;
+  unsigned long bl;
+
+  *next_zero_bit = 0 ; /* always start this at zero. */
+
+  /* we aren't logging all blocks are safe for reuse */
+  if (reiserfs_dont_log(p_s_sb)) {
+    return 0 ;
+  }
+
+  PROC_INFO_INC( p_s_sb, journal.in_journal );
+  /* If we aren't doing a search_all, this is a metablock, and it will be logged before use.
+  ** if we crash before the transaction that freed it commits,  this transaction won't
+  ** have committed either, and the block will never be written
+  */
+  if (search_all) {
+    for (i = 0 ; i < JOURNAL_NUM_BITMAPS ; i++) {
+      PROC_INFO_INC( p_s_sb, journal.in_journal_bitmap );
+      jb = SB_JOURNAL(p_s_sb)->j_list_bitmap + i ;
+      if (jb->journal_list && jb->bitmaps[bmap_nr] &&
+          test_bit(bit_nr, (unsigned long *)jb->bitmaps[bmap_nr]->data)) {
+	*next_zero_bit = find_next_zero_bit((unsigned long *)
+	                             (jb->bitmaps[bmap_nr]->data),
+	                             p_s_sb->s_blocksize << 3, bit_nr+1) ; 
+	return 1 ;
+      }
+    }
+  }
+
+  bl = bmap_nr * (p_s_sb->s_blocksize << 3) + bit_nr;
+  /* is it in any old transactions? */
+  if (search_all && (cn = get_journal_hash_dev(SB_JOURNAL(p_s_sb)->j_list_hash_table, dev,bl,size))) {
+    return 1; 
+  }
+
+  /* is it in the current transaction.  This should never happen */
+  if ((cn = get_journal_hash_dev(SB_JOURNAL(p_s_sb)->j_hash_table, dev,bl,size))) {
+    return 1; 
+  }
+
+  PROC_INFO_INC( p_s_sb, journal.in_journal_reusable );
+  /* safe for reuse */
+  return 0 ;
+}
+
+/* insert cn into table
+*/
+inline void insert_journal_hash(struct reiserfs_journal_cnode **table, struct reiserfs_journal_cnode *cn) {
+  struct reiserfs_journal_cnode *cn_orig ;
+
+  cn_orig = journal_hash(table, cn->dev, cn->blocknr) ;
+  cn->hnext = cn_orig ;
+  cn->hprev = NULL ;
+  if (cn_orig) {
+    cn_orig->hprev = cn ;
+  }
+  journal_hash(table, cn->dev, cn->blocknr) =  cn ;
+}
+
+/* lock the current transaction */
+inline static void lock_journal(struct super_block *p_s_sb) {
+  PROC_INFO_INC( p_s_sb, journal.lock_journal );
+  while(atomic_read(&(SB_JOURNAL(p_s_sb)->j_wlock)) > 0) {
+    PROC_INFO_INC( p_s_sb, journal.lock_journal_wait );
+    sleep_on(&(SB_JOURNAL(p_s_sb)->j_wait)) ;
+  }
+  atomic_set(&(SB_JOURNAL(p_s_sb)->j_wlock), 1) ;
+}
+
+/* unlock the current transaction */
+inline static void unlock_journal(struct super_block *p_s_sb) {
+  atomic_dec(&(SB_JOURNAL(p_s_sb)->j_wlock)) ;
+  wake_up(&(SB_JOURNAL(p_s_sb)->j_wait)) ;
+}
+
+/*
+** this used to be much more involved, and I'm keeping it just in case things get ugly again.
+** it gets called by flush_commit_list, and cleans up any data stored about blocks freed during a
+** transaction.
+*/
+static void cleanup_freed_for_journal_list(struct super_block *p_s_sb, struct reiserfs_journal_list *jl) {
+
+  struct reiserfs_list_bitmap *jb = jl->j_list_bitmap ;
+  if (jb) {
+    cleanup_bitmap_list(p_s_sb, jb) ;
+  }
+  jl->j_list_bitmap->journal_list = NULL ;
+  jl->j_list_bitmap = NULL ;
+}
+
+/*
+** if this journal list still has commit blocks unflushed, send them to disk.
+**
+** log areas must be flushed in order (transaction 2 can't commit before transaction 1)
+** Before the commit block can by written, every other log block must be safely on disk
+**
+*/
+static int flush_commit_list(struct super_block *s, struct reiserfs_journal_list *jl, int flushall) {
+  int i, count ;
+  int index = 0 ;
+  int bn ;
+  int retry_count = 0 ;
+  int orig_commit_left = 0 ;
+  struct buffer_head *tbh = NULL ;
+  struct reiserfs_journal_list *other_jl ;
+
+  reiserfs_check_lock_depth("flush_commit_list") ;
+
+  if (atomic_read(&jl->j_older_commits_done)) {
+    return 0 ;
+  }
+
+  /* before we can put our commit blocks on disk, we have to make sure everyone older than
+  ** us is on disk too
+  */
+  if (jl->j_len <= 0) {
+    return 0 ;
+  }
+  if (flushall) {
+    /* we _must_ make sure the transactions are committed in order.  Start with the
+    ** index after this one, wrap all the way around 
+    */
+    index = (jl - SB_JOURNAL_LIST(s)) + 1 ;
+    for (i = 0 ; i < JOURNAL_LIST_COUNT ; i++) {
+      other_jl = SB_JOURNAL_LIST(s) + ( (index + i) % JOURNAL_LIST_COUNT) ;
+      if (other_jl && other_jl != jl && other_jl->j_len > 0 && other_jl->j_trans_id > 0 && 
+          other_jl->j_trans_id <= jl->j_trans_id && (atomic_read(&(jl->j_older_commits_done)) == 0)) {
+        flush_commit_list(s, other_jl, 0) ;
+      }
+    }
+  }
+
+  count = 0 ;
+  /* don't flush the commit list for the current transactoin */
+  if (jl == ((SB_JOURNAL_LIST(s) + SB_JOURNAL_LIST_INDEX(s)))) {
+    return 0 ;
+  }
+
+  /* make sure nobody is trying to flush this one at the same time */
+  if (atomic_read(&(jl->j_commit_flushing))) {
+    sleep_on(&(jl->j_commit_wait)) ;
+    if (flushall) {
+      atomic_set(&(jl->j_older_commits_done), 1) ;
+    }
+    return 0 ;
+  }
+  
+  /* this commit is done, exit */
+  if (atomic_read(&(jl->j_commit_left)) <= 0) {
+    if (flushall) {
+      atomic_set(&(jl->j_older_commits_done), 1) ;
+    }
+    return 0 ;
+  }
+  /* keeps others from flushing while we are flushing */
+  atomic_set(&(jl->j_commit_flushing), 1) ; 
+
+
+  if (jl->j_len > SB_JOURNAL_TRANS_MAX(s)) {
+    reiserfs_panic(s, "journal-512: flush_commit_list: length is %lu, list number %d\n", jl->j_len, jl - SB_JOURNAL_LIST(s)) ;
+    return 0 ;
+  }
+
+  orig_commit_left = atomic_read(&(jl->j_commit_left)) ; 
+
+  /* start by checking all the commit blocks in this transaction.  
+  ** Add anyone not on disk into tbh.  Stop checking once commit_left <= 1, because that means we
+  ** only have the commit block left 
+  */
+retry:
+  count = 0 ;
+  for (i = 0 ; atomic_read(&(jl->j_commit_left)) > 1 && i < (jl->j_len + 1) ; i++) {  /* everything but commit_bh */
+    bn = SB_ONDISK_JOURNAL_1st_BLOCK(s) + (jl->j_start+i) %  SB_ONDISK_JOURNAL_SIZE(s);
+    tbh = journal_get_hash_table(s, bn) ;
+
+/* kill this sanity check */
+if (count > (orig_commit_left + 2)) {
+reiserfs_panic(s, "journal-539: flush_commit_list: BAD count(%d) > orig_commit_left(%d)!\n", count, orig_commit_left) ;
+}
+    if (tbh) {
+      if (buffer_locked(tbh)) { /* wait on it, redo it just to make sure */
+	wait_on_buffer(tbh) ;
+	if (!buffer_uptodate(tbh)) {
+	  reiserfs_panic(s, "journal-584, buffer write failed\n") ;
+	}
+      } 
+      if (buffer_dirty(tbh)) {
+	reiserfs_warning(s, "journal-569: flush_commit_list, block already dirty!\n") ;
+      } else {				
+	mark_buffer_dirty(tbh) ;
+      }
+      ll_rw_block(WRITE, 1, &tbh) ;
+      count++ ;
+      put_bh(tbh) ; /* once for our get_hash */
+    } 
+  }
+
+  /* wait on everyone in tbh before writing commit block*/
+  if (count > 0) {
+    for (i = 0 ; atomic_read(&(jl->j_commit_left)) > 1 && 
+                 i < (jl->j_len + 1) ; i++) {  /* everything but commit_bh */
+      bn = SB_ONDISK_JOURNAL_1st_BLOCK(s) + (jl->j_start + i) % SB_ONDISK_JOURNAL_SIZE(s) ;
+      tbh = journal_get_hash_table(s, bn) ;
+
+      wait_on_buffer(tbh) ;
+      if (!buffer_uptodate(tbh)) {
+	reiserfs_panic(s, "journal-601, buffer write failed\n") ;
+      }
+      put_bh(tbh) ; /* once for our get_hash */
+      bforget(tbh) ;    /* once due to original getblk in do_journal_end */
+      atomic_dec(&(jl->j_commit_left)) ;
+    }
+  }
+
+  if (atomic_read(&(jl->j_commit_left)) != 1) { /* just the commit_bh left, flush it without calling getblk for everyone */
+    if (retry_count < 2) {
+      reiserfs_warning(s, "journal-582: flush_commit_list, not all log blocks on disk yet, trying again\n") ;
+      retry_count++ ;
+      goto retry;
+    }
+    reiserfs_panic(s, "journal-563: flush_commit_list: BAD, j_commit_left is %u, should be 1\n", 
+		   atomic_read(&(jl->j_commit_left)));
+  }
+
+  mark_buffer_dirty(jl->j_commit_bh) ;
+  ll_rw_block(WRITE, 1, &(jl->j_commit_bh)) ;
+  wait_on_buffer(jl->j_commit_bh) ;
+  if (!buffer_uptodate(jl->j_commit_bh)) {
+    reiserfs_panic(s, "journal-615: buffer write failed\n") ;
+  }
+  atomic_dec(&(jl->j_commit_left)) ;
+  bforget(jl->j_commit_bh) ;
+
+  /* now, every commit block is on the disk.  It is safe to allow blocks freed during this transaction to be reallocated */
+  cleanup_freed_for_journal_list(s, jl) ;
+
+  if (flushall) {
+    atomic_set(&(jl->j_older_commits_done), 1) ;
+  }
+  atomic_set(&(jl->j_commit_flushing), 0) ;
+  wake_up(&(jl->j_commit_wait)) ;
+
+  s->s_dirt = 1 ;
+  return 0 ;
+}
+
+/*
+** flush_journal_list frequently needs to find a newer transaction for a given block.  This does that, or 
+** returns NULL if it can't find anything 
+*/
+static struct reiserfs_journal_list *find_newer_jl_for_cn(struct reiserfs_journal_cnode *cn) {
+  kdev_t dev = cn->dev;
+  unsigned long blocknr = cn->blocknr ;
+
+  cn = cn->hprev ;
+  while(cn) {
+    if (cn->dev == dev && cn->blocknr == blocknr && cn->jlist) {
+      return cn->jlist ;
+    }
+    cn = cn->hprev ;
+  }
+  return NULL ;
+}
+
+
+/*
+** once all the real blocks have been flushed, it is safe to remove them from the
+** journal list for this transaction.  Aside from freeing the cnode, this also allows the
+** block to be reallocated for data blocks if it had been deleted.
+*/
+static void remove_all_from_journal_list(struct super_block *p_s_sb, struct reiserfs_journal_list *jl, int debug) {
+  struct buffer_head fake_bh ;
+  struct reiserfs_journal_cnode *cn, *last ;
+  cn = jl->j_realblock ;
+
+  /* which is better, to lock once around the whole loop, or
+  ** to lock for each call to remove_from_journal_list?
+  */
+  while(cn) {
+    if (cn->blocknr != 0) {
+      if (debug) {
+        reiserfs_warning(p_s_sb, "block %lu, bh is %d, state %ld\n", cn->blocknr, cn->bh ? 1: 0, 
+	        cn->state) ;
+      }
+      fake_bh.b_blocknr = cn->blocknr ;
+      fake_bh.b_dev = cn->dev ;
+      cn->state = 0 ;
+      remove_from_journal_list(p_s_sb, jl, &fake_bh, 1) ;
+    }
+    last = cn ;
+    cn = cn->next ;
+    free_cnode(p_s_sb, last) ;
+  }
+  jl->j_realblock = NULL ;
+}
+
+/*
+** if this timestamp is greater than the timestamp we wrote last to the header block, write it to the header block.
+** once this is done, I can safely say the log area for this transaction won't ever be replayed, and I can start
+** releasing blocks in this transaction for reuse as data blocks.
+** called by flush_journal_list, before it calls remove_all_from_journal_list
+**
+*/
+static int _update_journal_header_block(struct super_block *p_s_sb, unsigned long offset, unsigned long trans_id) {
+  struct reiserfs_journal_header *jh ;
+  if (trans_id >= SB_JOURNAL(p_s_sb)->j_last_flush_trans_id) {
+    if (buffer_locked((SB_JOURNAL(p_s_sb)->j_header_bh)))  {
+      wait_on_buffer((SB_JOURNAL(p_s_sb)->j_header_bh)) ;
+      if (!buffer_uptodate(SB_JOURNAL(p_s_sb)->j_header_bh)) {
+        reiserfs_panic(p_s_sb, "journal-699: buffer write failed\n") ;
+      }
+    }
+    SB_JOURNAL(p_s_sb)->j_last_flush_trans_id = trans_id ;
+    SB_JOURNAL(p_s_sb)->j_first_unflushed_offset = offset ;
+    jh = (struct reiserfs_journal_header *)(SB_JOURNAL(p_s_sb)->j_header_bh->b_data) ;
+    jh->j_last_flush_trans_id = cpu_to_le32(trans_id) ;
+    jh->j_first_unflushed_offset = cpu_to_le32(offset) ;
+    jh->j_mount_id = cpu_to_le32(SB_JOURNAL(p_s_sb)->j_mount_id) ;
+    set_bit(BH_Dirty, &(SB_JOURNAL(p_s_sb)->j_header_bh->b_state)) ;
+    ll_rw_block(WRITE, 1, &(SB_JOURNAL(p_s_sb)->j_header_bh)) ;
+    wait_on_buffer((SB_JOURNAL(p_s_sb)->j_header_bh)) ; 
+    if (!buffer_uptodate(SB_JOURNAL(p_s_sb)->j_header_bh)) {
+      reiserfs_warning( p_s_sb, "reiserfs: journal-837: IO error during journal replay\n" );
+      return -EIO ;
+    }
+  }
+  return 0 ;
+}
+
+static int update_journal_header_block(struct super_block *p_s_sb, 
+                                       unsigned long offset, 
+				       unsigned long trans_id) {
+    if (_update_journal_header_block(p_s_sb, offset, trans_id)) {
+	reiserfs_panic(p_s_sb, "journal-712: buffer write failed\n") ;
+    }
+    return 0 ;
+}
+/* 
+** flush any and all journal lists older than you are 
+** can only be called from flush_journal_list
+*/
+static int flush_older_journal_lists(struct super_block *p_s_sb, struct reiserfs_journal_list *jl, unsigned long trans_id) {
+  int i, index ;
+  struct reiserfs_journal_list *other_jl ;
+
+  index = jl - SB_JOURNAL_LIST(p_s_sb) ;
+  for (i = 0 ; i < JOURNAL_LIST_COUNT ; i++) {
+    other_jl = SB_JOURNAL_LIST(p_s_sb) + ((index + i) % JOURNAL_LIST_COUNT) ;
+    if (other_jl && other_jl->j_len > 0 && 
+        other_jl->j_trans_id > 0 && 
+	other_jl->j_trans_id < trans_id && 
+        other_jl != jl) {
+      /* do not flush all */
+      flush_journal_list(p_s_sb, other_jl, 0) ; 
+    }
+  }
+  return 0 ;
+}
+
+static void reiserfs_end_buffer_io_sync(struct buffer_head *bh, int uptodate) {
+    if (buffer_journaled(bh)) {
+        reiserfs_warning(NULL, "clm-2084: pinned buffer %lu:%s sent to disk\n",
+	                 bh->b_blocknr, kdevname(bh->b_dev)) ;
+    }
+    mark_buffer_uptodate(bh, uptodate) ;
+    unlock_buffer(bh) ;
+    put_bh(bh) ;
+}
+static void submit_logged_buffer(struct buffer_head *bh) {
+    lock_buffer(bh) ;
+    get_bh(bh) ;
+    bh->b_end_io = reiserfs_end_buffer_io_sync ;
+    mark_buffer_notjournal_new(bh) ;
+    clear_bit(BH_Dirty, &bh->b_state) ;
+    submit_bh(WRITE, bh) ;
+}
+
+/* flush a journal list, both commit and real blocks
+**
+** always set flushall to 1, unless you are calling from inside
+** flush_journal_list
+**
+** IMPORTANT.  This can only be called while there are no journal writers, 
+** and the journal is locked.  That means it can only be called from 
+** do_journal_end, or by journal_release
+*/
+static int flush_journal_list(struct super_block *s, 
+                              struct reiserfs_journal_list *jl, int flushall) {
+  struct reiserfs_journal_list *pjl ;
+  struct reiserfs_journal_cnode *cn, *last ;
+  int count ;
+  int was_jwait = 0 ;
+  int was_dirty = 0 ;
+  struct buffer_head *saved_bh ; 
+  unsigned long j_len_saved = jl->j_len ;
+
+  if (j_len_saved <= 0) {
+    return 0 ;
+  }
+
+  if (atomic_read(&SB_JOURNAL(s)->j_wcount) != 0) {
+    reiserfs_warning(s, "clm-2048: flush_journal_list called with wcount %d\n",
+                      atomic_read(&SB_JOURNAL(s)->j_wcount)) ;
+  }
+  /* if someone is getting the commit list, we must wait for them */
+  while (atomic_read(&(jl->j_commit_flushing))) { 
+    sleep_on(&(jl->j_commit_wait)) ;
+  }
+  /* if someone is flushing this list, we must wait for them */
+  while (atomic_read(&(jl->j_flushing))) {
+    sleep_on(&(jl->j_flush_wait)) ;
+  }
+
+  /* this list is now ours, we can change anything we want */
+  atomic_set(&(jl->j_flushing), 1) ;
+
+  count = 0 ;
+  if (j_len_saved > SB_JOURNAL_TRANS_MAX(s)) {
+    reiserfs_panic(s, "journal-715: flush_journal_list, length is %lu, list number %d\n", j_len_saved, jl - SB_JOURNAL_LIST(s)) ;
+    atomic_dec(&(jl->j_flushing)) ;
+    return 0 ;
+  }
+
+  /* if all the work is already done, get out of here */
+  if (atomic_read(&(jl->j_nonzerolen)) <= 0 && 
+      atomic_read(&(jl->j_commit_left)) <= 0) {
+    goto flush_older_and_return ;
+  } 
+
+  /* start by putting the commit list on disk.  This will also flush 
+  ** the commit lists of any olders transactions
+  */
+  flush_commit_list(s, jl, 1) ;
+
+  /* are we done now? */
+  if (atomic_read(&(jl->j_nonzerolen)) <= 0 && 
+      atomic_read(&(jl->j_commit_left)) <= 0) {
+    goto flush_older_and_return ;
+  }
+
+  /* loop through each cnode, see if we need to write it, 
+  ** or wait on a more recent transaction, or just ignore it 
+  */
+  if (atomic_read(&(SB_JOURNAL(s)->j_wcount)) != 0) {
+    reiserfs_panic(s, "journal-844: panic journal list is flushing, wcount is not 0\n") ;
+  }
+  cn = jl->j_realblock ;
+  while(cn) {
+    was_jwait = 0 ;
+    was_dirty = 0 ;
+    saved_bh = NULL ;
+    /* blocknr of 0 is no longer in the hash, ignore it */
+    if (cn->blocknr == 0) {
+      goto free_cnode ;
+    }
+    pjl = find_newer_jl_for_cn(cn) ;
+    /* the order is important here.  We check pjl to make sure we
+    ** don't clear BH_JDirty_wait if we aren't the one writing this
+    ** block to disk
+    */
+    if (!pjl && cn->bh) {
+      saved_bh = cn->bh ;
+
+      /* we do this to make sure nobody releases the buffer while 
+      ** we are working with it 
+      */
+      get_bh(saved_bh) ;
+
+      if (buffer_journal_dirty(saved_bh)) {
+        was_jwait = 1 ;
+	mark_buffer_notjournal_dirty(saved_bh) ;
+        /* undo the inc from journal_mark_dirty */
+	put_bh(saved_bh) ;
+      }
+      if (can_dirty(cn)) {
+        was_dirty = 1 ;
+      }
+    }
+
+    /* if someone has this block in a newer transaction, just make
+    ** sure they are commited, and don't try writing it to disk
+    */
+    if (pjl) {
+      flush_commit_list(s, pjl, 1) ;
+      goto free_cnode ;
+    }
+
+    /* bh == NULL when the block got to disk on its own, OR, 
+    ** the block got freed in a future transaction 
+    */
+    if (saved_bh == NULL) {
+      goto free_cnode ;
+    }
+
+    /* this should never happen.  kupdate_one_transaction has this list
+    ** locked while it works, so we should never see a buffer here that
+    ** is not marked JDirty_wait
+    */
+    if ((!was_jwait) && !buffer_locked(saved_bh)) {
+reiserfs_warning(s, "journal-813: BAD! buffer %lu %cdirty %cjwait, not in a newer tranasction\n", saved_bh->b_blocknr,
+        was_dirty ? ' ' : '!', was_jwait ? ' ' : '!') ;
+    }
+    /* kupdate_one_transaction waits on the buffers it is writing, so we
+    ** should never see locked buffers here
+    */
+    if (buffer_locked(saved_bh)) {
+      reiserfs_warning(s, "clm-2083: locked buffer %lu in flush_journal_list\n", 
+              saved_bh->b_blocknr) ;
+      wait_on_buffer(saved_bh) ;
+      if (!buffer_uptodate(saved_bh)) {
+        reiserfs_panic(s, "journal-923: buffer write failed\n") ;
+      }
+    } 
+    if (was_dirty) { 
+      /* we inc again because saved_bh gets decremented at free_cnode */
+      get_bh(saved_bh) ;
+      set_bit(BLOCK_NEEDS_FLUSH, &cn->state) ;
+      submit_logged_buffer(saved_bh) ;
+      count++ ;
+    } else {
+      reiserfs_warning(s, "clm-2082: Unable to flush buffer %lu in flush_journal_list\n",
+              saved_bh->b_blocknr) ;
+    }
+free_cnode:
+    last = cn ;
+    cn = cn->next ;
+    if (saved_bh) {
+      /* we incremented this to keep others from taking the buffer head away */
+      put_bh(saved_bh) ;
+      if (atomic_read(&(saved_bh->b_count)) < 0) {
+        reiserfs_warning(s, "journal-945: saved_bh->b_count < 0\n") ;
+      }
+    }
+  }
+  if (count > 0) {
+    cn = jl->j_realblock ;
+    while(cn) {
+      if (test_bit(BLOCK_NEEDS_FLUSH, &cn->state)) {
+	if (!cn->bh) {
+	  reiserfs_panic(s, "journal-1011: cn->bh is NULL\n") ;
+	}
+	wait_on_buffer(cn->bh) ;
+	if (!cn->bh) {
+	  reiserfs_panic(s, "journal-1012: cn->bh is NULL\n") ;
+	}
+	if (!buffer_uptodate(cn->bh)) {
+	  reiserfs_panic(s, "journal-949: buffer write failed\n") ;
+	}
+	refile_buffer(cn->bh) ;
+        brelse(cn->bh) ;
+      }
+      cn = cn->next ;
+    }
+  }
+
+flush_older_and_return:
+  /* before we can update the journal header block, we _must_ flush all 
+  ** real blocks from all older transactions to disk.  This is because
+  ** once the header block is updated, this transaction will not be
+  ** replayed after a crash
+  */
+  if (flushall) {
+    flush_older_journal_lists(s, jl, jl->j_trans_id) ;
+  } 
+  
+  /* before we can remove everything from the hash tables for this 
+  ** transaction, we must make sure it can never be replayed
+  **
+  ** since we are only called from do_journal_end, we know for sure there
+  ** are no allocations going on while we are flushing journal lists.  So,
+  ** we only need to update the journal header block for the last list
+  ** being flushed
+  */
+  if (flushall) {
+    update_journal_header_block(s, (jl->j_start + jl->j_len + 2) % SB_ONDISK_JOURNAL_SIZE(s), jl->j_trans_id) ;
+  }
+  remove_all_from_journal_list(s, jl, 0) ;
+  jl->j_len = 0 ;
+  atomic_set(&(jl->j_nonzerolen), 0) ;
+  jl->j_start = 0 ;
+  jl->j_realblock = NULL ;
+  jl->j_commit_bh = NULL ;
+  jl->j_trans_id = 0 ;
+  atomic_dec(&(jl->j_flushing)) ;
+  wake_up(&(jl->j_flush_wait)) ;
+  return 0 ;
+} 
+
+
+static int kupdate_one_transaction(struct super_block *s,
+                                    struct reiserfs_journal_list *jl) 
+{
+    struct reiserfs_journal_list *pjl ; /* previous list for this cn */
+    struct reiserfs_journal_cnode *cn, *walk_cn ;
+    unsigned long blocknr ;
+    int run = 0 ;
+    int orig_trans_id = jl->j_trans_id ;
+    struct buffer_head *saved_bh ; 
+    int ret = 0 ;
+
+    /* if someone is getting the commit list, we must wait for them */
+    while (atomic_read(&(jl->j_commit_flushing))) {
+        sleep_on(&(jl->j_commit_wait)) ;
+    }
+    /* if someone is flushing this list, we must wait for them */
+    while (atomic_read(&(jl->j_flushing))) {
+        sleep_on(&(jl->j_flush_wait)) ;
+    }
+    /* was it flushed while we slept? */
+    if (jl->j_len <= 0 || jl->j_trans_id != orig_trans_id) {
+        return 0 ;
+    }
+
+    /* this list is now ours, we can change anything we want */
+    atomic_set(&(jl->j_flushing), 1) ;
+
+loop_start:
+    cn = jl->j_realblock ;
+    while(cn) {
+        saved_bh = NULL ;
+        /* if the blocknr == 0, this has been cleared from the hash,
+        ** skip it
+        */
+        if (cn->blocknr == 0) {
+            goto next ;
+        }
+        /* look for a more recent transaction that logged this
+        ** buffer.  Only the most recent transaction with a buffer in
+        ** it is allowed to send that buffer to disk
+        */
+        pjl = find_newer_jl_for_cn(cn) ;
+        if (run == 0 && !pjl && cn->bh && buffer_journal_dirty(cn->bh) &&
+            can_dirty(cn)) 
+        {
+            if (!test_bit(BH_JPrepared, &cn->bh->b_state)) {
+                set_bit(BLOCK_NEEDS_FLUSH, &cn->state) ;
+		submit_logged_buffer(cn->bh) ;
+            } else {
+                /* someone else is using this buffer.  We can't 
+                ** send it to disk right now because they might
+                ** be changing/logging it.
+                */
+                ret = 1 ;
+            }
+        } else if (test_bit(BLOCK_NEEDS_FLUSH, &cn->state)) {
+            clear_bit(BLOCK_NEEDS_FLUSH, &cn->state) ;
+            if (!pjl && cn->bh) {
+                wait_on_buffer(cn->bh) ;
+            }
+            /* check again, someone could have logged while we scheduled */
+            pjl = find_newer_jl_for_cn(cn) ;
+
+            /* before the JDirty_wait bit is set, the 
+            ** buffer is added to the hash list.  So, if we are
+            ** run in the middle of a do_journal_end, we will notice
+            ** if this buffer was logged and added from the latest
+            ** transaction.  In this case, we don't want to decrement
+            ** b_count
+            */
+            if (!pjl && cn->bh && buffer_journal_dirty(cn->bh)) {
+                blocknr = cn->blocknr ;
+                walk_cn = cn ;
+                saved_bh= cn->bh ;
+                /* update all older transactions to show this block
+                ** was flushed
+                */
+                mark_buffer_notjournal_dirty(cn->bh) ;
+                while(walk_cn) {
+                    if (walk_cn->bh && walk_cn->blocknr == blocknr && 
+                         walk_cn->dev == cn->dev) {
+                        if (walk_cn->jlist) {
+                            atomic_dec(&(walk_cn->jlist->j_nonzerolen)) ;
+                        }
+                        walk_cn->bh = NULL ;
+                    }
+                    walk_cn = walk_cn->hnext ;
+                }
+                if (atomic_read(&saved_bh->b_count) < 1) {
+                    reiserfs_warning(s, "clm-2081: bad count on %lu\n", 
+                                      saved_bh->b_blocknr) ;
+                }
+                brelse(saved_bh) ;
+            }
+        }
+        /*
+        ** if the more recent transaction is committed to the log,
+        ** this buffer can be considered flushed.  Decrement our
+        ** counters to reflect one less buffer that needs writing.
+        **
+        ** note, this relies on all of the above code being
+        ** schedule free once pjl comes back non-null.
+        */
+        if (pjl && cn->bh && atomic_read(&pjl->j_commit_left) == 0) {
+            atomic_dec(&cn->jlist->j_nonzerolen) ;
+            cn->bh = NULL ;
+        } 
+next:
+        cn = cn->next ;
+    }
+    /* the first run through the loop sends all the dirty buffers to
+    ** ll_rw_block.
+    ** the second run through the loop does all the accounting
+    */
+    if (run++ == 0) {
+        goto loop_start ;
+    }
+
+    atomic_set(&(jl->j_flushing), 0) ;
+    wake_up(&(jl->j_flush_wait)) ;
+    return ret ;
+}
+/* since we never give dirty buffers to bdflush/kupdate, we have to
+** flush them ourselves.  This runs through the journal lists, finds
+** old metadata in need of flushing and sends it to disk.
+** this does not end transactions, commit anything, or free
+** cnodes.
+**
+** returns the highest transaction id that was flushed last time
+*/
+static unsigned long reiserfs_journal_kupdate(struct super_block *s) {
+    struct reiserfs_journal_list *jl ;
+    int i ;
+    int start ;
+    time_t age ;
+    int ret = 0 ;
+
+    start = SB_JOURNAL_LIST_INDEX(s) ;
+
+    /* safety check to prevent flush attempts during a mount */
+    if (start < 0) {
+        return 0 ;
+    }
+    i = (start + 1) % JOURNAL_LIST_COUNT ;
+    while(i != start) {
+        jl = SB_JOURNAL_LIST(s) + i  ;
+        age = CURRENT_TIME - jl->j_timestamp ;
+        if (jl->j_len > 0 && // age >= (JOURNAL_MAX_COMMIT_AGE * 2) && 
+            atomic_read(&(jl->j_nonzerolen)) > 0 &&
+            atomic_read(&(jl->j_commit_left)) == 0) {
+
+            if (jl->j_trans_id == SB_JOURNAL(s)->j_trans_id) {
+                break ;
+            }
+            /* if ret was already 1, we want to preserve that */
+            ret |= kupdate_one_transaction(s, jl) ;
+        } 
+        if (atomic_read(&(jl->j_nonzerolen)) > 0) {
+            ret |= 1 ;
+        }
+        i = (i + 1) % JOURNAL_LIST_COUNT ;
+    }
+    return ret ;
+}
+
+/*
+** removes any nodes in table with name block and dev as bh.
+** only touchs the hnext and hprev pointers.
+*/
+void remove_journal_hash(struct reiserfs_journal_cnode **table, struct reiserfs_journal_list *jl,struct buffer_head *bh,
+                         int remove_freed){
+  struct reiserfs_journal_cnode *cur ;
+  struct reiserfs_journal_cnode **head ;
+
+  if (!bh)
+    return ;
+
+  head= &(journal_hash(table, bh->b_dev, bh->b_blocknr)) ;
+  if (!head) {
+    return ;
+  }
+  cur = *head ;
+  while(cur) {
+    if (cur->blocknr == bh->b_blocknr && cur->dev == bh->b_dev && (jl == NULL || jl == cur->jlist) && 
+        (!test_bit(BLOCK_FREED, &cur->state) || remove_freed)) {
+      if (cur->hnext) {
+        cur->hnext->hprev = cur->hprev ;
+      }
+      if (cur->hprev) {
+	cur->hprev->hnext = cur->hnext ;
+      } else {
+	*head = cur->hnext ;
+      }
+      cur->blocknr = 0 ;
+      cur->dev = 0 ;
+      cur->state = 0 ;
+      if (cur->bh && cur->jlist) /* anybody who clears the cur->bh will also dec the nonzerolen */
+	atomic_dec(&(cur->jlist->j_nonzerolen)) ;
+      cur->bh = NULL ;
+      cur->jlist = NULL ;
+    } 
+    cur = cur->hnext ;
+  }
+}
+
+static void free_journal_ram(struct super_block *p_s_sb) {
+  vfree(SB_JOURNAL(p_s_sb)->j_cnode_free_orig) ;
+  free_list_bitmaps(p_s_sb, SB_JOURNAL(p_s_sb)->j_list_bitmap) ;
+  free_bitmap_nodes(p_s_sb) ; /* must be after free_list_bitmaps */
+  if (SB_JOURNAL(p_s_sb)->j_header_bh) {
+    brelse(SB_JOURNAL(p_s_sb)->j_header_bh) ;
+  }
+  /* j_header_bh is on the journal dev, make sure not to release the journal
+   * dev until we brelse j_header_bh
+   */
+  release_journal_dev(p_s_sb, SB_JOURNAL(p_s_sb));
+  vfree(SB_JOURNAL(p_s_sb)) ;
+}
+
+/*
+** call on unmount.  Only set error to 1 if you haven't made your way out
+** of read_super() yet.  Any other caller must keep error at 0.
+*/
+static int do_journal_release(struct reiserfs_transaction_handle *th, struct super_block *p_s_sb, int error) {
+  struct reiserfs_transaction_handle myth ;
+
+  /* we only want to flush out transactions if we were called with error == 0
+  */
+  if (!error && !(p_s_sb->s_flags & MS_RDONLY)) {
+    /* end the current trans */
+    do_journal_end(th, p_s_sb,10, FLUSH_ALL) ;
+
+    /* make sure something gets logged to force our way into the flush code */
+    journal_join(&myth, p_s_sb, 1) ;
+    reiserfs_prepare_for_journal(p_s_sb, SB_BUFFER_WITH_SB(p_s_sb), 1) ;
+    journal_mark_dirty(&myth, p_s_sb, SB_BUFFER_WITH_SB(p_s_sb)) ;
+    do_journal_end(&myth, p_s_sb,1, FLUSH_ALL) ;
+  }
+
+  /* we decrement before we wake up, because the commit thread dies off
+  ** when it has been woken up and the count is <= 0
+  */
+  reiserfs_mounted_fs_count-- ;
+  wake_up(&reiserfs_commit_thread_wait) ;
+  sleep_on(&reiserfs_commit_thread_done) ;
+
+  free_journal_ram(p_s_sb) ;
+
+  return 0 ;
+}
+
+/*
+** call on unmount.  flush all journal trans, release all alloc'd ram
+*/
+int journal_release(struct reiserfs_transaction_handle *th, struct super_block *p_s_sb) {
+  return do_journal_release(th, p_s_sb, 0) ;
+}
+/*
+** only call from an error condition inside reiserfs_read_super!
+*/
+int journal_release_error(struct reiserfs_transaction_handle *th, struct super_block *p_s_sb) {
+  return do_journal_release(th, p_s_sb, 1) ;
+}
+
+/* compares description block with commit block.  returns 1 if they differ, 0 if they are the same */
+static int journal_compare_desc_commit(struct super_block *p_s_sb, struct reiserfs_journal_desc *desc, 
+			               struct reiserfs_journal_commit *commit) {
+  if (le32_to_cpu(commit->j_trans_id) != le32_to_cpu(desc->j_trans_id) || 
+      le32_to_cpu(commit->j_len) != le32_to_cpu(desc->j_len) || 
+      le32_to_cpu(commit->j_len) > SB_JOURNAL_TRANS_MAX(p_s_sb) || 
+      le32_to_cpu(commit->j_len) <= 0 
+  ) {
+    return 1 ;
+  }
+  return 0 ;
+}
+/* returns 0 if it did not find a description block  
+** returns -1 if it found a corrupt commit block
+** returns 1 if both desc and commit were valid 
+*/
+static int journal_transaction_is_valid(struct super_block *p_s_sb, struct buffer_head *d_bh, unsigned long *oldest_invalid_trans_id, unsigned long *newest_mount_id) {
+  struct reiserfs_journal_desc *desc ;
+  struct reiserfs_journal_commit *commit ;
+  struct buffer_head *c_bh ;
+  unsigned long offset ;
+
+  if (!d_bh)
+      return 0 ;
+
+  desc = (struct reiserfs_journal_desc *)d_bh->b_data ;
+  if (le32_to_cpu(desc->j_len) > 0 && !memcmp(desc->j_magic, JOURNAL_DESC_MAGIC, 8)) {
+    if (oldest_invalid_trans_id && *oldest_invalid_trans_id && le32_to_cpu(desc->j_trans_id) > *oldest_invalid_trans_id) {
+      reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-986: transaction "
+	              "is valid returning because trans_id %d is greater than "
+		      "oldest_invalid %lu\n", le32_to_cpu(desc->j_trans_id), 
+		       *oldest_invalid_trans_id);
+      return 0 ;
+    }
+    if (newest_mount_id && *newest_mount_id > le32_to_cpu(desc->j_mount_id)) {
+      reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1087: transaction "
+                     "is valid returning because mount_id %d is less than "
+		     "newest_mount_id %lu\n", desc->j_mount_id, 
+		     *newest_mount_id) ;
+      return -1 ;
+    }
+    if ( le32_to_cpu(desc->j_len) > SB_JOURNAL_TRANS_MAX(p_s_sb) ) {
+      reiserfs_warning(p_s_sb, "journal-2018: Bad transaction length %d encountered, ignoring transaction\n", le32_to_cpu(desc->j_len));
+      return -1 ;
+    }
+    offset = d_bh->b_blocknr - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) ;
+
+    /* ok, we have a journal description block, lets see if the transaction was valid */
+    c_bh = journal_bread(p_s_sb, SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) +
+		 ((offset + le32_to_cpu(desc->j_len) + 1) % SB_ONDISK_JOURNAL_SIZE(p_s_sb))) ;
+    if (!c_bh)
+      return 0 ;
+    commit = (struct reiserfs_journal_commit *)c_bh->b_data ;
+    if (journal_compare_desc_commit(p_s_sb, desc, commit)) {
+      reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, 
+                     "journal_transaction_is_valid, commit offset %ld had bad "
+		     "time %d or length %d\n", 
+		     c_bh->b_blocknr -  SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb),
+		     le32_to_cpu(commit->j_trans_id), 
+		     le32_to_cpu(commit->j_len));
+      brelse(c_bh) ;
+      if (oldest_invalid_trans_id) {
+	*oldest_invalid_trans_id = le32_to_cpu(desc->j_trans_id) ;
+	reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1004: "
+	               "transaction_is_valid setting oldest invalid trans_id "
+		       "to %d\n", le32_to_cpu(desc->j_trans_id)) ;
+	}
+      return -1; 
+    }
+    brelse(c_bh) ;
+    reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1006: found valid "
+                   "transaction start offset %lu, len %d id %d\n", 
+		   d_bh->b_blocknr - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb), 
+		   le32_to_cpu(desc->j_len), le32_to_cpu(desc->j_trans_id)) ;
+    return 1 ;
+  } else {
+    return 0 ;
+  }
+}
+
+static void brelse_array(struct buffer_head **heads, int num) {
+  int i ;
+  for (i = 0 ; i < num ; i++) {
+    brelse(heads[i]) ;
+  }
+}
+
+/*
+** given the start, and values for the oldest acceptable transactions,
+** this either reads in a replays a transaction, or returns because the transaction
+** is invalid, or too old.
+*/
+static int journal_read_transaction(struct super_block *p_s_sb, unsigned long cur_dblock, unsigned long oldest_start, 
+				    unsigned long oldest_trans_id, unsigned long newest_mount_id) {
+  struct reiserfs_journal_desc *desc ;
+  struct reiserfs_journal_commit *commit ;
+  unsigned long trans_id = 0 ;
+  struct buffer_head *c_bh ;
+  struct buffer_head *d_bh ;
+  struct buffer_head **log_blocks = NULL ;
+  struct buffer_head **real_blocks = NULL ;
+  unsigned long trans_offset ;
+  int i;
+
+  d_bh = journal_bread(p_s_sb, cur_dblock) ;
+  if (!d_bh)
+    return 1 ;
+  desc = (struct reiserfs_journal_desc *)d_bh->b_data ;
+  trans_offset = d_bh->b_blocknr - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) ;
+  reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1037: "
+                 "journal_read_transaction, offset %lu, len %d mount_id %d\n", 
+		 d_bh->b_blocknr - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb), 
+		 le32_to_cpu(desc->j_len), le32_to_cpu(desc->j_mount_id)) ;
+  if (le32_to_cpu(desc->j_trans_id) < oldest_trans_id) {
+    reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1039: "
+                   "journal_read_trans skipping because %lu is too old\n", 
+		   cur_dblock - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb)) ;
+    brelse(d_bh) ;
+    return 1 ;
+  }
+  if (le32_to_cpu(desc->j_mount_id) != newest_mount_id) {
+    reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1146: "
+                   "journal_read_trans skipping because %d is != "
+		   "newest_mount_id %lu\n", le32_to_cpu(desc->j_mount_id), 
+		    newest_mount_id) ;
+    brelse(d_bh) ;
+    return 1 ;
+  }
+  c_bh = journal_bread(p_s_sb, SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) +
+		((trans_offset + le32_to_cpu(desc->j_len) + 1) % 
+		 SB_ONDISK_JOURNAL_SIZE(p_s_sb))) ;
+  if (!c_bh) {
+    brelse(d_bh) ;
+    return 1 ;
+  }
+  commit = (struct reiserfs_journal_commit *)c_bh->b_data ;
+  if (journal_compare_desc_commit(p_s_sb, desc, commit)) {
+    reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal_read_transaction, "
+                   "commit offset %ld had bad time %d or length %d\n", 
+		   c_bh->b_blocknr -  SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb), 
+		   le32_to_cpu(commit->j_trans_id), le32_to_cpu(commit->j_len));
+    brelse(c_bh) ;
+    brelse(d_bh) ;
+    return 1; 
+  }
+  trans_id = le32_to_cpu(desc->j_trans_id) ;
+  /* now we know we've got a good transaction, and it was inside the valid time ranges */
+  log_blocks = reiserfs_kmalloc(le32_to_cpu(desc->j_len) * sizeof(struct buffer_head *), GFP_NOFS, p_s_sb) ;
+  real_blocks = reiserfs_kmalloc(le32_to_cpu(desc->j_len) * sizeof(struct buffer_head *), GFP_NOFS, p_s_sb) ;
+  if (!log_blocks  || !real_blocks) {
+    brelse(c_bh) ;
+    brelse(d_bh) ;
+    reiserfs_kfree(log_blocks, le32_to_cpu(desc->j_len) * sizeof(struct buffer_head *), p_s_sb) ;
+    reiserfs_kfree(real_blocks, le32_to_cpu(desc->j_len) * sizeof(struct buffer_head *), p_s_sb) ;
+    reiserfs_warning(p_s_sb, "journal-1169: kmalloc failed, unable to mount FS\n") ;
+    return -1 ;
+  }
+  /* get all the buffer heads */
+  for(i = 0 ; i < le32_to_cpu(desc->j_len) ; i++) {
+    log_blocks[i] = journal_getblk(p_s_sb,  SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + (trans_offset + 1 + i) % SB_ONDISK_JOURNAL_SIZE(p_s_sb));
+    if (i < JOURNAL_TRANS_HALF) {
+      real_blocks[i] = sb_getblk(p_s_sb, le32_to_cpu(desc->j_realblock[i])) ;
+    } else {
+      real_blocks[i] = sb_getblk(p_s_sb, le32_to_cpu(commit->j_realblock[i - JOURNAL_TRANS_HALF])) ;
+    }
+    if ( real_blocks[i]->b_blocknr > SB_BLOCK_COUNT(p_s_sb) ) {
+      reiserfs_warning(p_s_sb, "journal-1207: REPLAY FAILURE fsck required! Block to replay is outside of filesystem\n");
+      goto abort_replay;
+    }
+    /* make sure we don't try to replay onto log or reserved area */
+    if (is_block_in_log_or_reserved_area(p_s_sb, real_blocks[i]->b_blocknr)) {
+      reiserfs_warning(p_s_sb, "journal-1204: REPLAY FAILURE fsck required! Trying to replay onto a log block\n") ;
+abort_replay:
+      brelse_array(log_blocks, i) ;
+      brelse_array(real_blocks, i) ;
+      brelse(c_bh) ;
+      brelse(d_bh) ;
+      reiserfs_kfree(log_blocks, le32_to_cpu(desc->j_len) * sizeof(struct buffer_head *), p_s_sb) ;
+      reiserfs_kfree(real_blocks, le32_to_cpu(desc->j_len) * sizeof(struct buffer_head *), p_s_sb) ;
+      return -1 ;
+    }
+  }
+  /* read in the log blocks, memcpy to the corresponding real block */
+  ll_rw_block(READ, le32_to_cpu(desc->j_len), log_blocks) ;
+  for (i = 0 ; i < le32_to_cpu(desc->j_len) ; i++) {
+    wait_on_buffer(log_blocks[i]) ;
+    if (!buffer_uptodate(log_blocks[i])) {
+      reiserfs_warning(p_s_sb, "journal-1212: REPLAY FAILURE fsck required! buffer write failed\n") ;
+      brelse_array(log_blocks + i, le32_to_cpu(desc->j_len) - i) ;
+      brelse_array(real_blocks, le32_to_cpu(desc->j_len)) ;
+      brelse(c_bh) ;
+      brelse(d_bh) ;
+      reiserfs_kfree(log_blocks, le32_to_cpu(desc->j_len) * sizeof(struct buffer_head *), p_s_sb) ;
+      reiserfs_kfree(real_blocks, le32_to_cpu(desc->j_len) * sizeof(struct buffer_head *), p_s_sb) ;
+      return -1 ;
+    }
+    memcpy(real_blocks[i]->b_data, log_blocks[i]->b_data, real_blocks[i]->b_size) ;
+    mark_buffer_uptodate(real_blocks[i], 1) ;
+    brelse(log_blocks[i]) ;
+  }
+  /* flush out the real blocks */
+  for (i = 0 ; i < le32_to_cpu(desc->j_len) ; i++) {
+    set_bit(BH_Dirty, &(real_blocks[i]->b_state)) ;
+    ll_rw_block(WRITE, 1, real_blocks + i) ;
+  }
+  for (i = 0 ; i < le32_to_cpu(desc->j_len) ; i++) {
+    wait_on_buffer(real_blocks[i]) ; 
+    if (!buffer_uptodate(real_blocks[i])) {
+      reiserfs_warning(p_s_sb, "journal-1226: REPLAY FAILURE, fsck required! buffer write failed\n") ;
+      brelse_array(real_blocks + i, le32_to_cpu(desc->j_len) - i) ;
+      brelse(c_bh) ;
+      brelse(d_bh) ;
+      reiserfs_kfree(log_blocks, le32_to_cpu(desc->j_len) * sizeof(struct buffer_head *), p_s_sb) ;
+      reiserfs_kfree(real_blocks, le32_to_cpu(desc->j_len) * sizeof(struct buffer_head *), p_s_sb) ;
+      return -1 ;
+    }
+    brelse(real_blocks[i]) ;
+  }
+  cur_dblock =  SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + ((trans_offset + le32_to_cpu(desc->j_len) + 2) % SB_ONDISK_JOURNAL_SIZE(p_s_sb)) ;
+  reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1095: setting journal "
+                 "start to offset %ld\n", 
+		 cur_dblock -  SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb)) ;
+  
+  /* init starting values for the first transaction, in case this is the last transaction to be replayed. */
+  SB_JOURNAL(p_s_sb)->j_start = cur_dblock - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) ;
+  SB_JOURNAL(p_s_sb)->j_last_flush_trans_id = trans_id ;
+  SB_JOURNAL(p_s_sb)->j_trans_id = trans_id + 1;
+  brelse(c_bh) ;
+  brelse(d_bh) ;
+  reiserfs_kfree(log_blocks, le32_to_cpu(desc->j_len) * sizeof(struct buffer_head *), p_s_sb) ;
+  reiserfs_kfree(real_blocks, le32_to_cpu(desc->j_len) * sizeof(struct buffer_head *), p_s_sb) ;
+  return 0 ;
+}
+
+/*
+** read and replay the log
+** on a clean unmount, the journal header's next unflushed pointer will be to an invalid
+** transaction.  This tests that before finding all the transactions in the log, whic makes normal mount times fast.
+**
+** After a crash, this starts with the next unflushed transaction, and replays until it finds one too old, or invalid.
+**
+** On exit, it sets things up so the first transaction will work correctly.
+*/
+struct buffer_head * reiserfs_breada (kdev_t dev, int block, int bufsize,
+			    unsigned int max_block)
+{
+	struct buffer_head * bhlist[BUFNR];
+	unsigned int blocks = BUFNR;
+	struct buffer_head * bh;
+	int i, j;
+	
+	bh = getblk (dev, block, bufsize);
+	if (buffer_uptodate (bh))
+		return (bh);   
+		
+	if (block + BUFNR > max_block) {
+		blocks = max_block - block;
+	}
+	bhlist[0] = bh;
+	j = 1;
+	for (i = 1; i < blocks; i++) {
+		bh = getblk (dev, block + i, bufsize);
+		if (buffer_uptodate (bh)) {
+			brelse (bh);
+			break;
+		}
+		else bhlist[j++] = bh;
+	}
+	ll_rw_block (READ, j, bhlist);
+	for(i = 1; i < j; i++) 
+		brelse (bhlist[i]);
+	bh = bhlist[0];
+	wait_on_buffer (bh);
+	if (buffer_uptodate (bh))
+		return bh;
+	brelse (bh);
+	return NULL;
+}
+
+static struct buffer_head * journal_breada (struct super_block *p_s_sb, int block)
+{
+  return reiserfs_breada (SB_JOURNAL_DEV(p_s_sb), block, p_s_sb->s_blocksize,
+			  SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + SB_ONDISK_JOURNAL_SIZE(p_s_sb));
+}
+
+static int journal_read(struct super_block *p_s_sb) {
+  struct reiserfs_journal_desc *desc ;
+  unsigned long oldest_trans_id = 0;
+  unsigned long oldest_invalid_trans_id = 0 ;
+  time_t start ;
+  unsigned long oldest_start = 0;
+  unsigned long cur_dblock = 0 ;
+  unsigned long newest_mount_id = 9 ;
+  struct buffer_head *d_bh ;
+  struct reiserfs_journal_header *jh ;
+  int valid_journal_header = 0 ;
+  int replay_count = 0 ;
+  int continue_replay = 1 ;
+  int ret ;
+
+  cur_dblock = SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) ;
+  printk("reiserfs: checking transaction log (device %s) ...\n",
+          bdevname(SB_JOURNAL_DEV(p_s_sb))) ;
+  printk("for (%s)\n",
+	  bdevname(p_s_sb->s_dev)) ;
+
+  start = CURRENT_TIME ;
+
+  /* step 1, read in the journal header block.  Check the transaction it says 
+  ** is the first unflushed, and if that transaction is not valid, 
+  ** replay is done
+  */
+  SB_JOURNAL(p_s_sb)->j_header_bh = journal_bread(p_s_sb, 
+                                          SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + 
+					  SB_ONDISK_JOURNAL_SIZE(p_s_sb)) ;
+  if (!SB_JOURNAL(p_s_sb)->j_header_bh) {
+    return 1 ;
+  }
+  jh = (struct reiserfs_journal_header *)(SB_JOURNAL(p_s_sb)->j_header_bh->b_data) ;
+  if (le32_to_cpu(jh->j_first_unflushed_offset) >= 0 && 
+      le32_to_cpu(jh->j_first_unflushed_offset) < SB_ONDISK_JOURNAL_SIZE(p_s_sb) &&
+      le32_to_cpu(jh->j_last_flush_trans_id) > 0) {
+    oldest_start = SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + 
+                       le32_to_cpu(jh->j_first_unflushed_offset) ;
+    oldest_trans_id = le32_to_cpu(jh->j_last_flush_trans_id) + 1;
+    newest_mount_id = le32_to_cpu(jh->j_mount_id);
+    reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1153: found in "
+                   "header: first_unflushed_offset %d, last_flushed_trans_id "
+		   "%lu\n", le32_to_cpu(jh->j_first_unflushed_offset), 
+		   le32_to_cpu(jh->j_last_flush_trans_id)) ;
+    valid_journal_header = 1 ;
+
+    /* now, we try to read the first unflushed offset.  If it is not valid, 
+    ** there is nothing more we can do, and it makes no sense to read 
+    ** through the whole log.
+    */
+    d_bh = journal_bread(p_s_sb, SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + le32_to_cpu(jh->j_first_unflushed_offset)) ;
+    ret = journal_transaction_is_valid(p_s_sb, d_bh, NULL, NULL) ;
+    if (!ret) {
+      continue_replay = 0 ;
+    }
+    brelse(d_bh) ;
+    goto start_log_replay;
+  }
+
+  if (continue_replay && is_read_only(p_s_sb->s_dev)) {
+    reiserfs_warning(p_s_sb, "clm-2076: device is readonly, unable to replay log\n") ;
+    return -1 ;
+  }
+  if (continue_replay && (p_s_sb->s_flags & MS_RDONLY)) {
+    printk("Warning, log replay starting on readonly filesystem\n") ;    
+  }
+
+  /* ok, there are transactions that need to be replayed.  start with the first log block, find
+  ** all the valid transactions, and pick out the oldest.
+  */
+  while(continue_replay && cur_dblock < (SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + SB_ONDISK_JOURNAL_SIZE(p_s_sb))) {
+    d_bh = journal_breada(p_s_sb, cur_dblock) ;
+    ret = journal_transaction_is_valid(p_s_sb, d_bh, &oldest_invalid_trans_id, &newest_mount_id) ;
+    if (ret == 1) {
+      desc = (struct reiserfs_journal_desc *)d_bh->b_data ;
+      if (oldest_start == 0) { /* init all oldest_ values */
+        oldest_trans_id = le32_to_cpu(desc->j_trans_id) ;
+	oldest_start = d_bh->b_blocknr ;
+	newest_mount_id = le32_to_cpu(desc->j_mount_id) ;
+	reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1179: Setting "
+	               "oldest_start to offset %lu, trans_id %lu\n", 
+		       oldest_start - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb), 
+		       oldest_trans_id) ;
+      } else if (oldest_trans_id > le32_to_cpu(desc->j_trans_id)) { 
+        /* one we just read was older */
+        oldest_trans_id = le32_to_cpu(desc->j_trans_id) ;
+	oldest_start = d_bh->b_blocknr ;
+	reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1180: Resetting "
+	               "oldest_start to offset %lu, trans_id %lu\n", 
+			oldest_start - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb), 
+			oldest_trans_id) ;
+      }
+      if (newest_mount_id < le32_to_cpu(desc->j_mount_id)) {
+        newest_mount_id = le32_to_cpu(desc->j_mount_id) ;
+	reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1299: Setting "
+	              "newest_mount_id to %d\n", le32_to_cpu(desc->j_mount_id));
+      }
+      cur_dblock += le32_to_cpu(desc->j_len) + 2 ;
+    } else {
+      cur_dblock++ ;
+    }
+    brelse(d_bh) ;
+  }
+
+start_log_replay:
+  cur_dblock = oldest_start ;
+  if (oldest_trans_id)  {
+    reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1206: Starting replay "
+                   "from offset %lu, trans_id %lu\n", 
+		   cur_dblock - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb), 
+		   oldest_trans_id) ;
+
+  }
+  replay_count = 0 ;
+  while(continue_replay && oldest_trans_id > 0) {
+    ret = journal_read_transaction(p_s_sb, cur_dblock, oldest_start, oldest_trans_id, newest_mount_id) ;
+    if (ret < 0) {
+      return ret ;
+    } else if (ret != 0) {
+      break ;
+    }
+    cur_dblock = SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + SB_JOURNAL(p_s_sb)->j_start ;
+    replay_count++ ;
+   if (cur_dblock == oldest_start)
+        break;
+  }
+
+  if (oldest_trans_id == 0) {
+    reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1225: No valid "
+                   "transactions found\n") ;
+  }
+  /* j_start does not get set correctly if we don't replay any transactions.
+  ** if we had a valid journal_header, set j_start to the first unflushed transaction value,
+  ** copy the trans_id from the header
+  */
+  if (valid_journal_header && replay_count == 0) { 
+    SB_JOURNAL(p_s_sb)->j_start = le32_to_cpu(jh->j_first_unflushed_offset) ;
+    SB_JOURNAL(p_s_sb)->j_trans_id = le32_to_cpu(jh->j_last_flush_trans_id) + 1;
+    SB_JOURNAL(p_s_sb)->j_last_flush_trans_id = le32_to_cpu(jh->j_last_flush_trans_id) ;
+    SB_JOURNAL(p_s_sb)->j_mount_id = le32_to_cpu(jh->j_mount_id) + 1;
+  } else {
+    SB_JOURNAL(p_s_sb)->j_mount_id = newest_mount_id + 1 ;
+  }
+  reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1299: Setting "
+                 "newest_mount_id to %lu\n", SB_JOURNAL(p_s_sb)->j_mount_id) ;
+  SB_JOURNAL(p_s_sb)->j_first_unflushed_offset = SB_JOURNAL(p_s_sb)->j_start ; 
+  if (replay_count > 0) {
+    printk("reiserfs: replayed %d transactions in %lu seconds\n", replay_count, 
+	    CURRENT_TIME - start) ;
+  }
+  if (!is_read_only(p_s_sb->s_dev) && 
+       _update_journal_header_block(p_s_sb, SB_JOURNAL(p_s_sb)->j_start, 
+                                   SB_JOURNAL(p_s_sb)->j_last_flush_trans_id))
+  {
+      /* replay failed, caller must call free_journal_ram and abort
+      ** the mount
+      */
+      return -1 ;
+  }
+  return 0 ;
+}
+
+
+struct reiserfs_journal_commit_task {
+  struct super_block *p_s_sb ;
+  int jindex ;
+  int wake_on_finish ; /* if this is one, we wake the task_done queue, if it
+                       ** is zero, we free the whole struct on finish
+		       */
+  struct reiserfs_journal_commit_task *self ;
+  struct wait_queue *task_done ;
+  struct tq_struct task ;
+} ;
+
+static void reiserfs_journal_commit_task_func(struct reiserfs_journal_commit_task *ct) {
+
+  struct reiserfs_journal_list *jl ;
+  jl = SB_JOURNAL_LIST(ct->p_s_sb) + ct->jindex ;
+
+  flush_commit_list(ct->p_s_sb, SB_JOURNAL_LIST(ct->p_s_sb) + ct->jindex, 1) ; 
+
+  if (jl->j_len > 0 && atomic_read(&(jl->j_nonzerolen)) > 0 &&
+      atomic_read(&(jl->j_commit_left)) == 0) {
+    kupdate_one_transaction(ct->p_s_sb, jl) ;
+  }
+  reiserfs_kfree(ct->self, sizeof(struct reiserfs_journal_commit_task), ct->p_s_sb) ;
+}
+
+static void setup_commit_task_arg(struct reiserfs_journal_commit_task *ct,
+                                  struct super_block *p_s_sb, 
+				  int jindex) {
+  if (!ct) {
+    reiserfs_panic(NULL, "journal-1360: setup_commit_task_arg called with NULL struct\n") ;
+  }
+  ct->p_s_sb = p_s_sb ;
+  ct->jindex = jindex ;
+  ct->task_done = NULL ;
+  INIT_LIST_HEAD(&ct->task.list) ;
+  ct->task.sync = 0 ;
+  ct->task.routine = (void *)(void *)reiserfs_journal_commit_task_func ; 
+  ct->self = ct ;
+  ct->task.data = (void *)ct ;
+}
+
+static void commit_flush_async(struct super_block *p_s_sb, int jindex) {
+  struct reiserfs_journal_commit_task *ct ;
+  /* using GFP_NOFS, GFP_KERNEL could try to flush inodes, which will try
+  ** to start/join a transaction, which will deadlock
+  */
+  ct = reiserfs_kmalloc(sizeof(struct reiserfs_journal_commit_task), GFP_NOFS, p_s_sb) ;
+  if (ct) {
+    setup_commit_task_arg(ct, p_s_sb, jindex) ;
+    queue_task(&(ct->task), &reiserfs_commit_thread_tq);
+    wake_up(&reiserfs_commit_thread_wait) ;
+  } else {
+#ifdef CONFIG_REISERFS_CHECK
+    reiserfs_warning(p_s_sb, "journal-1540: kmalloc failed, doing sync commit\n") ;
+#endif
+    flush_commit_list(p_s_sb, SB_JOURNAL_LIST(p_s_sb) + jindex, 1) ;
+  }
+}
+
+/*
+** this is the commit thread.  It is started with kernel_thread on
+** FS mount, and journal_release() waits for it to exit.
+**
+** It could do a periodic commit, but there is a lot code for that
+** elsewhere right now, and I only wanted to implement this little
+** piece for starters.
+**
+** All we do here is sleep on the j_commit_thread_wait wait queue, and
+** then run the per filesystem commit task queue when we wakeup.
+*/
+static int reiserfs_journal_commit_thread(void *nullp) {
+
+  daemonize() ;
+
+  spin_lock_irq(&current->sigmask_lock);
+  sigfillset(&current->blocked);
+  recalc_sigpending(current);
+  spin_unlock_irq(&current->sigmask_lock);
+
+  sprintf(current->comm, "kreiserfsd") ;
+  lock_kernel() ;
+  while(1) {
+
+    while(TQ_ACTIVE(reiserfs_commit_thread_tq)) {
+      run_task_queue(&reiserfs_commit_thread_tq) ;
+    }
+
+    /* if there aren't any more filesystems left, break */
+    if (reiserfs_mounted_fs_count <= 0) {
+      run_task_queue(&reiserfs_commit_thread_tq) ;
+      break ;
+    }
+    wake_up(&reiserfs_commit_thread_done) ;
+    interruptible_sleep_on_timeout(&reiserfs_commit_thread_wait, 5 * HZ) ;
+  }
+  unlock_kernel() ;
+  wake_up(&reiserfs_commit_thread_done) ;
+  return 0 ;
+}
+
+static void journal_list_init(struct super_block *p_s_sb) {
+  int i ;
+  for (i = 0 ; i < JOURNAL_LIST_COUNT ; i++) {
+    init_waitqueue_head(&(SB_JOURNAL_LIST(p_s_sb)[i].j_commit_wait)) ;
+    init_waitqueue_head(&(SB_JOURNAL_LIST(p_s_sb)[i].j_flush_wait)) ;
+  }
+}
+
+static int release_journal_dev( struct super_block *super,
+				struct reiserfs_journal *journal )
+{
+    int result;
+    
+    result = 0;
+	
+    if( journal -> j_dev_bd != NULL && journal->j_dev_bd != super->s_bdev) {
+	result = blkdev_put( journal -> j_dev_bd, BDEV_FS );
+	journal -> j_dev_bd = NULL;
+    }
+    if( journal -> j_dev_file != NULL ) {
+	result = filp_close( journal -> j_dev_file, NULL );
+	journal -> j_dev_file = NULL;
+    }
+    if( result != 0 ) {
+	reiserfs_warning(super, "release_journal_dev: Cannot release journal device: %i", result );
+    }
+    return result;
+}
+
+static int journal_init_dev( struct super_block *super, 
+			     struct reiserfs_journal *journal, 
+			     const char *jdev_name )
+{
+	int result;
+	kdev_t jdev;
+	int blkdev_mode = FMODE_READ | FMODE_WRITE;
+
+	result = 0;
+
+	journal -> j_dev_bd = NULL;
+	journal -> j_dev_file = NULL;
+	jdev = SB_JOURNAL_DEV( super ) = 
+      		SB_ONDISK_JOURNAL_DEVICE( super ) ?
+		to_kdev_t(SB_ONDISK_JOURNAL_DEVICE( super )) : super -> s_dev;	
+
+	/* there is no "jdev" option */
+
+	if (is_read_only(super->s_dev))
+	    blkdev_mode = FMODE_READ;
+
+	if( ( !jdev_name || !jdev_name[ 0 ] ) ) {
+
+		/* don't add an extra reference to the device when 
+		 * the log is on the same disk as the FS.  It makes the
+		 * raid code unhappy
+		 */
+		if (jdev == super->s_dev) {
+		    journal->j_dev_bd = super->s_bdev;
+		    return 0;
+		}
+		journal -> j_dev_bd = bdget( kdev_t_to_nr( jdev ) );
+		if( journal -> j_dev_bd ) {
+			result = blkdev_get( journal -> j_dev_bd, 
+					     blkdev_mode, 0, BDEV_FS );
+			if (result) {
+			    bdput(journal->j_dev_bd);
+			    journal->j_dev_bd = NULL;
+			}
+		} else {
+			result = -ENOMEM;
+		} 
+		if( result != 0 )
+			printk( "journal_init_dev: cannot init journal device\n '%s': %i", 
+				kdevname( jdev ), result );
+
+		return result;
+	}
+
+	/* "jdev" option has been found */
+
+	journal -> j_dev_file = filp_open( jdev_name, 0, 0 );
+	if( !IS_ERR( journal -> j_dev_file ) ) {
+		struct inode *jdev_inode;
+
+		jdev_inode = journal -> j_dev_file -> f_dentry -> d_inode;
+		journal -> j_dev_bd = jdev_inode -> i_bdev;
+		if( !S_ISBLK( jdev_inode -> i_mode ) ) {
+			printk( "journal_init_dev: '%s' is not a block device", jdev_name );
+			result = -ENOTBLK;
+		} else if( journal -> j_dev_file -> f_vfsmnt -> mnt_flags & MNT_NODEV) {
+			printk( "journal_init_dev: Cannot use devices on '%s'", jdev_name );
+			result = -EACCES;
+		} else if( jdev_inode -> i_bdev == NULL ) {
+			printk( "journal_init_dev: bdev unintialized for '%s'", jdev_name );
+			result = -ENOMEM;
+		} else if( ( result = blkdev_get( jdev_inode -> i_bdev, 
+						  blkdev_mode,
+						  0, BDEV_FS ) ) != 0 ) {
+			journal -> j_dev_bd = NULL;
+			printk( "journal_init_dev: Cannot load device '%s': %i", jdev_name,
+			     result );
+		} else
+			/* ok */
+			SB_JOURNAL_DEV( super ) = 
+				to_kdev_t( jdev_inode -> i_bdev -> bd_dev );
+	} else {
+		result = PTR_ERR( journal -> j_dev_file );
+		journal -> j_dev_file = NULL;
+		printk( "journal_init_dev: Cannot open '%s': %i", jdev_name, result );
+	}
+	if( result != 0 ) {
+		release_journal_dev( super, journal );
+	}
+	printk( "journal_init_dev: journal device: %s", kdevname( SB_JOURNAL_DEV( super ) ) );
+	return result;
+}
+
+/*
+** must be called once on fs mount.  calls journal_read for you
+*/
+int journal_init(struct super_block *p_s_sb, const char * j_dev_name, 
+                  int old_format) {
+    int num_cnodes = SB_ONDISK_JOURNAL_SIZE(p_s_sb) * 2 ;
+    struct buffer_head *bhjh;
+    struct reiserfs_super_block * rs;
+    struct reiserfs_journal_header *jh;
+    struct reiserfs_journal *journal;
+
+    if (sizeof(struct reiserfs_journal_commit) != 4096 ||
+	sizeof(struct reiserfs_journal_desc) != 4096) {
+	reiserfs_warning(p_s_sb, "journal-1249: commit or desc struct not 4096 %Zd %Zd\n", 
+	       sizeof(struct reiserfs_journal_commit), 
+	sizeof(struct reiserfs_journal_desc)) ;
+	return 1 ;
+    }
+
+    if ( SB_ONDISK_JOURNAL_SIZE(p_s_sb) < 512 ) {
+	reiserfs_warning(p_s_sb, "Journal size %d is less than 512+1 blocks, which unsupported\n", SB_ONDISK_JOURNAL_SIZE(p_s_sb));
+	return 1 ;
+    }
+
+    journal = SB_JOURNAL(p_s_sb) = vmalloc(sizeof (struct reiserfs_journal)) ;
+    if (!journal) {
+	reiserfs_warning(p_s_sb, "journal-1256: unable to get memory for journal structure\n") ;
+	return 1 ;
+    }
+    memset(journal, 0, sizeof(struct reiserfs_journal)) ;
+    INIT_LIST_HEAD(&SB_JOURNAL(p_s_sb)->j_bitmap_nodes) ;
+    INIT_LIST_HEAD (&SB_JOURNAL(p_s_sb)->j_prealloc_list);
+
+    if (reiserfs_allocate_list_bitmaps(p_s_sb,
+				       SB_JOURNAL(p_s_sb)->j_list_bitmap, 
+				       SB_BMAP_NR(p_s_sb)))
+	goto free_and_return ;
+
+    allocate_bitmap_nodes(p_s_sb) ;
+
+    /* reserved for journal area support */
+    SB_JOURNAL_1st_RESERVED_BLOCK(p_s_sb) = (old_format ?
+					    REISERFS_OLD_DISK_OFFSET_IN_BYTES /
+					    p_s_sb->s_blocksize +
+					    SB_BMAP_NR(p_s_sb) + 1 :
+					    REISERFS_DISK_OFFSET_IN_BYTES / 
+					    p_s_sb->s_blocksize + 2); 
+    
+    if( journal_init_dev( p_s_sb, journal, j_dev_name ) != 0 ) {
+	reiserfs_warning(p_s_sb, "journal-1259: unable to initialize jornal device\n");
+	goto free_and_return;
+    }
+
+    rs = SB_DISK_SUPER_BLOCK(p_s_sb);
+     
+    /* read journal header */
+    bhjh = journal_bread (p_s_sb, SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + 
+                          SB_ONDISK_JOURNAL_SIZE(p_s_sb));
+    if (!bhjh) {
+	reiserfs_warning(p_s_sb, "journal-459: unable to read  journal header\n") ;
+	goto free_and_return;
+    }
+    jh = (struct reiserfs_journal_header *)(bhjh->b_data);
+     
+    /* make sure that journal matches to the super block */
+    if (is_reiserfs_jr(rs) && 
+        jh->jh_journal.jp_journal_magic != sb_jp_journal_magic(rs)) {
+	char jname[ 32 ];
+	char fname[ 32 ];
+	 
+	strcpy( jname, kdevname( SB_JOURNAL_DEV(p_s_sb) ) );
+	strcpy( fname, kdevname( p_s_sb->s_dev ) );
+	printk("journal-460: journal header magic %x (device %s) does not "
+	       "match magic found in super block %x (device %s)\n",
+		jh->jh_journal.jp_journal_magic, jname,
+		sb_jp_journal_magic(rs), fname);
+	brelse (bhjh);
+	goto free_and_return;
+    }
+     
+    SB_JOURNAL_TRANS_MAX(p_s_sb) = le32_to_cpu (jh->jh_journal.jp_journal_trans_max);
+    SB_JOURNAL_MAX_BATCH(p_s_sb) = le32_to_cpu (jh->jh_journal.jp_journal_max_batch);
+    SB_JOURNAL_MAX_COMMIT_AGE(p_s_sb) = le32_to_cpu (jh->jh_journal.jp_journal_max_commit_age);
+    SB_JOURNAL_MAX_TRANS_AGE(p_s_sb) = JOURNAL_MAX_TRANS_AGE;
+
+    if (SB_JOURNAL_TRANS_MAX(p_s_sb)) {
+	/* make sure these parameters are available, assign if they are not */
+	__u32 initial = SB_JOURNAL_TRANS_MAX(p_s_sb);
+	__u32 ratio = 1;
+    
+	if (p_s_sb->s_blocksize < 4096)
+	    ratio = 4096 / p_s_sb->s_blocksize;
+
+	if (SB_ONDISK_JOURNAL_SIZE(p_s_sb)/SB_JOURNAL_TRANS_MAX(p_s_sb) < 
+	    JOURNAL_MIN_RATIO) 
+	{
+	    SB_JOURNAL_TRANS_MAX(p_s_sb) = SB_ONDISK_JOURNAL_SIZE(p_s_sb) / 
+	                                   JOURNAL_MIN_RATIO;
+	}
+	if (SB_JOURNAL_TRANS_MAX(p_s_sb) > JOURNAL_TRANS_MAX_DEFAULT / ratio)
+	    SB_JOURNAL_TRANS_MAX(p_s_sb) = JOURNAL_TRANS_MAX_DEFAULT / ratio;
+	if (SB_JOURNAL_TRANS_MAX(p_s_sb) < JOURNAL_TRANS_MIN_DEFAULT / ratio)
+	    SB_JOURNAL_TRANS_MAX(p_s_sb) = JOURNAL_TRANS_MIN_DEFAULT / ratio;
+
+	if (SB_JOURNAL_TRANS_MAX(p_s_sb) != initial) {
+	    printk ("reiserfs warning: wrong transaction max size (%u). "
+	            "Changed to %u\n", initial, SB_JOURNAL_TRANS_MAX(p_s_sb));
+        }
+	SB_JOURNAL_MAX_BATCH(p_s_sb) = SB_JOURNAL_TRANS_MAX(p_s_sb) *
+	                               JOURNAL_MAX_BATCH_DEFAULT / 
+				       JOURNAL_TRANS_MAX_DEFAULT;
+    }
+  
+    if (!SB_JOURNAL_TRANS_MAX(p_s_sb)) {
+	/*we have the file system was created by old version of mkreiserfs 
+	  so this field contains zero value */
+	SB_JOURNAL_TRANS_MAX(p_s_sb)      = JOURNAL_TRANS_MAX_DEFAULT ;
+	SB_JOURNAL_MAX_BATCH(p_s_sb)      = JOURNAL_MAX_BATCH_DEFAULT ;  
+	SB_JOURNAL_MAX_COMMIT_AGE(p_s_sb) = JOURNAL_MAX_COMMIT_AGE ;
+	
+	/* for blocksize >= 4096 - max transaction size is 1024. For 
+	   block size < 4096 trans max size is decreased proportionally */
+	if (p_s_sb->s_blocksize < 4096) {
+	    SB_JOURNAL_TRANS_MAX(p_s_sb) /= (4096 / p_s_sb->s_blocksize) ;
+	    SB_JOURNAL_MAX_BATCH(p_s_sb) = SB_JOURNAL_TRANS_MAX(p_s_sb)*9 / 10;
+	}
+    }
+
+    brelse (bhjh);
+
+    SB_JOURNAL(p_s_sb)->j_list_bitmap_index = 0 ;
+    SB_JOURNAL_LIST_INDEX(p_s_sb) = -10000 ; /* make sure flush_old_commits does not try to flush a list while replay is on */
+
+    /* clear out the journal list array */
+    memset(SB_JOURNAL_LIST(p_s_sb), 0, 
+           sizeof(struct reiserfs_journal_list) * JOURNAL_LIST_COUNT) ; 
+
+    journal_list_init(p_s_sb) ;
+
+    memset(SB_JOURNAL(p_s_sb)->j_list_hash_table, 0, 
+           JOURNAL_HASH_SIZE * sizeof(struct reiserfs_journal_cnode *)) ;
+    memset(journal_writers, 0, sizeof(char *) * 512) ; /* debug code */
+
+    INIT_LIST_HEAD(&(SB_JOURNAL(p_s_sb)->j_dirty_buffers)) ;
+
+    SB_JOURNAL(p_s_sb)->j_start = 0 ;
+    SB_JOURNAL(p_s_sb)->j_len = 0 ;
+    SB_JOURNAL(p_s_sb)->j_len_alloc = 0 ;
+    atomic_set(&(SB_JOURNAL(p_s_sb)->j_wcount), 0) ;
+    SB_JOURNAL(p_s_sb)->j_bcount = 0 ;	  
+    SB_JOURNAL(p_s_sb)->j_trans_start_time = 0 ;	  
+    SB_JOURNAL(p_s_sb)->j_last = NULL ;	  
+    SB_JOURNAL(p_s_sb)->j_first = NULL ;     
+    init_waitqueue_head(&(SB_JOURNAL(p_s_sb)->j_join_wait)) ;
+    init_waitqueue_head(&(SB_JOURNAL(p_s_sb)->j_wait)) ; 
+
+    SB_JOURNAL(p_s_sb)->j_trans_id = 10 ;  
+    SB_JOURNAL(p_s_sb)->j_mount_id = 10 ; 
+    SB_JOURNAL(p_s_sb)->j_state = 0 ;
+    atomic_set(&(SB_JOURNAL(p_s_sb)->j_jlock), 0) ;
+    atomic_set(&(SB_JOURNAL(p_s_sb)->j_wlock), 0) ;
+    SB_JOURNAL(p_s_sb)->j_cnode_free_list = allocate_cnodes(num_cnodes) ;
+    SB_JOURNAL(p_s_sb)->j_cnode_free_orig = SB_JOURNAL(p_s_sb)->j_cnode_free_list ;
+    SB_JOURNAL(p_s_sb)->j_cnode_free = SB_JOURNAL(p_s_sb)->j_cnode_free_list ? 
+                                       num_cnodes : 0 ;
+    SB_JOURNAL(p_s_sb)->j_cnode_used = 0 ;
+    SB_JOURNAL(p_s_sb)->j_must_wait = 0 ;
+    init_journal_hash(p_s_sb) ;
+    SB_JOURNAL_LIST(p_s_sb)[0].j_list_bitmap = get_list_bitmap(p_s_sb, SB_JOURNAL_LIST(p_s_sb)) ;
+    if (!(SB_JOURNAL_LIST(p_s_sb)[0].j_list_bitmap)) {
+	reiserfs_warning(p_s_sb, "journal-2005, get_list_bitmap failed for journal list 0\n") ;
+	goto free_and_return;
+    }
+    if (journal_read(p_s_sb) < 0) {
+	reiserfs_warning(p_s_sb, "Replay Failure, unable to mount\n") ;
+	goto free_and_return;
+    }
+    /* once the read is done, we can set this where it belongs */
+    SB_JOURNAL_LIST_INDEX(p_s_sb) = 0 ; 
+
+    if (reiserfs_dont_log (p_s_sb))
+	return 0;
+
+    reiserfs_mounted_fs_count++ ;
+    if (reiserfs_mounted_fs_count <= 1) {
+	kernel_thread((void *)(void *)reiserfs_journal_commit_thread, NULL,
+		      CLONE_FS | CLONE_FILES | CLONE_VM) ;
+    }
+    return 0 ;
+
+free_and_return:
+    free_journal_ram(p_s_sb);
+    return 1;
+}
+
+/*
+** test for a polite end of the current transaction.  Used by file_write, and should
+** be used by delete to make sure they don't write more than can fit inside a single
+** transaction
+*/
+int journal_transaction_should_end(struct reiserfs_transaction_handle *th, int new_alloc) {
+  time_t now = CURRENT_TIME ;
+  if (reiserfs_dont_log(th->t_super)) 
+    return 0 ;
+  if ( SB_JOURNAL(th->t_super)->j_must_wait > 0 ||
+       (SB_JOURNAL(th->t_super)->j_len_alloc + new_alloc) >= SB_JOURNAL_MAX_BATCH(th->t_super) || 
+       atomic_read(&(SB_JOURNAL(th->t_super)->j_jlock)) ||
+      (now - SB_JOURNAL(th->t_super)->j_trans_start_time) > SB_JOURNAL_MAX_TRANS_AGE(th->t_super) ||
+       SB_JOURNAL(th->t_super)->j_cnode_free < (SB_JOURNAL_TRANS_MAX(th->t_super) * 3)) { 
+    return 1 ;
+  }
+  return 0 ;
+}
+
+/* this must be called inside a transaction, and requires the 
+** kernel_lock to be held
+*/
+void reiserfs_block_writes(struct reiserfs_transaction_handle *th) {
+    struct super_block *s = th->t_super ;
+    SB_JOURNAL(s)->j_must_wait = 1 ;
+    set_bit(WRITERS_BLOCKED, &SB_JOURNAL(s)->j_state) ;
+    return ;
+}
+
+/* this must be called without a transaction started, and does not
+** require BKL
+*/
+void reiserfs_allow_writes(struct super_block *s) {
+    clear_bit(WRITERS_BLOCKED, &SB_JOURNAL(s)->j_state) ;
+    wake_up(&SB_JOURNAL(s)->j_join_wait) ;
+}
+
+/* this must be called without a transaction started, and does not
+** require BKL
+*/
+void reiserfs_wait_on_write_block(struct super_block *s) {
+    wait_event(SB_JOURNAL(s)->j_join_wait, 
+               !test_bit(WRITERS_BLOCKED, &SB_JOURNAL(s)->j_state)) ;
+}
+
+/* join == true if you must join an existing transaction.
+** join == false if you can deal with waiting for others to finish
+**
+** this will block until the transaction is joinable.  send the number of blocks you
+** expect to use in nblocks.
+*/
+static int do_journal_begin_r(struct reiserfs_transaction_handle *th, struct super_block * p_s_sb,unsigned long nblocks,int join) {
+  time_t now = CURRENT_TIME ;
+  int old_trans_id  ;
+
+  reiserfs_check_lock_depth("journal_begin") ;
+  RFALSE( p_s_sb->s_flags & MS_RDONLY, 
+	  "clm-2078: calling journal_begin on readonly FS") ;
+
+  if (reiserfs_dont_log(p_s_sb)) {
+    th->t_super = p_s_sb ; /* others will check this for the don't log flag */
+    return 0 ;
+  }
+  PROC_INFO_INC( p_s_sb, journal.journal_being );
+
+relock:
+  lock_journal(p_s_sb) ;
+
+  if (test_bit(WRITERS_BLOCKED, &SB_JOURNAL(p_s_sb)->j_state)) {
+    unlock_journal(p_s_sb) ;
+    reiserfs_wait_on_write_block(p_s_sb) ;
+    PROC_INFO_INC( p_s_sb, journal.journal_relock_writers );
+    goto relock ;
+  }
+
+  /* if there is no room in the journal OR
+  ** if this transaction is too old, and we weren't called joinable, wait for it to finish before beginning 
+  ** we don't sleep if there aren't other writers
+  */
+
+  if (  (!join && SB_JOURNAL(p_s_sb)->j_must_wait > 0) ||
+     ( !join && (SB_JOURNAL(p_s_sb)->j_len_alloc + nblocks + 2) >= SB_JOURNAL_MAX_BATCH(p_s_sb)) || 
+     (!join && atomic_read(&(SB_JOURNAL(p_s_sb)->j_wcount)) > 0 && SB_JOURNAL(p_s_sb)->j_trans_start_time > 0 && 
+      (now - SB_JOURNAL(p_s_sb)->j_trans_start_time) > SB_JOURNAL_MAX_TRANS_AGE(p_s_sb)) ||
+     (!join && atomic_read(&(SB_JOURNAL(p_s_sb)->j_jlock)) ) ||
+     (!join && SB_JOURNAL(p_s_sb)->j_cnode_free < (SB_JOURNAL_TRANS_MAX(p_s_sb) * 3))) {
+
+    unlock_journal(p_s_sb) ; /* allow others to finish this transaction */
+
+    /* if writer count is 0, we can just force this transaction to end, and start
+    ** a new one afterwards.
+    */
+    if (atomic_read(&(SB_JOURNAL(p_s_sb)->j_wcount)) <= 0) {
+      struct reiserfs_transaction_handle myth ;
+      journal_join(&myth, p_s_sb, 1) ;
+      reiserfs_prepare_for_journal(p_s_sb, SB_BUFFER_WITH_SB(p_s_sb), 1) ;
+      journal_mark_dirty(&myth, p_s_sb, SB_BUFFER_WITH_SB(p_s_sb)) ;
+      do_journal_end(&myth, p_s_sb,1,COMMIT_NOW) ;
+    } else {
+      /* but if the writer count isn't zero, we have to wait for the current writers to finish.
+      ** They won't batch on transaction end once we set j_jlock
+      */
+      atomic_set(&(SB_JOURNAL(p_s_sb)->j_jlock), 1) ;
+      old_trans_id = SB_JOURNAL(p_s_sb)->j_trans_id ;
+      while(atomic_read(&(SB_JOURNAL(p_s_sb)->j_jlock)) &&
+            SB_JOURNAL(p_s_sb)->j_trans_id == old_trans_id) {
+	sleep_on(&(SB_JOURNAL(p_s_sb)->j_join_wait)) ;
+      }
+    }
+    PROC_INFO_INC( p_s_sb, journal.journal_relock_wcount );
+    goto relock ;
+  }
+
+  if (SB_JOURNAL(p_s_sb)->j_trans_start_time == 0) { /* we are the first writer, set trans_id */
+    SB_JOURNAL(p_s_sb)->j_trans_start_time = now ;
+  }
+  atomic_inc(&(SB_JOURNAL(p_s_sb)->j_wcount)) ;
+  SB_JOURNAL(p_s_sb)->j_len_alloc += nblocks ;
+  th->t_blocks_logged = 0 ;
+  th->t_blocks_allocated = nblocks ;
+  th->t_super = p_s_sb ;
+  th->t_trans_id = SB_JOURNAL(p_s_sb)->j_trans_id ;
+  th->t_caller = "Unknown" ;
+  unlock_journal(p_s_sb) ;
+  p_s_sb->s_dirt = 1; 
+  return 0 ;
+}
+
+
+static int journal_join(struct reiserfs_transaction_handle *th, struct super_block *p_s_sb, unsigned long nblocks) {
+  return do_journal_begin_r(th, p_s_sb, nblocks, 1) ;
+}
+
+int journal_begin(struct reiserfs_transaction_handle *th, struct super_block  * p_s_sb, unsigned long nblocks) {
+  return do_journal_begin_r(th, p_s_sb, nblocks, 0) ;
+}
+
+/* not used at all */
+int journal_prepare(struct super_block  * p_s_sb, struct buffer_head *bh) {
+  return 0 ;
+}
+
+/*
+** puts bh into the current transaction.  If it was already there, reorders removes the
+** old pointers from the hash, and puts new ones in (to make sure replay happen in the right order).
+**
+** if it was dirty, cleans and files onto the clean list.  I can't let it be dirty again until the
+** transaction is committed.
+** 
+** if j_len, is bigger than j_len_alloc, it pushes j_len_alloc to 10 + j_len.
+*/
+int journal_mark_dirty(struct reiserfs_transaction_handle *th, struct super_block *p_s_sb, struct buffer_head *bh) {
+  struct reiserfs_journal_cnode *cn = NULL;
+  int count_already_incd = 0 ;
+  int prepared = 0 ;
+
+  PROC_INFO_INC( p_s_sb, journal.mark_dirty );
+  if (reiserfs_dont_log(th->t_super)) {
+    mark_buffer_dirty(bh) ;
+    return 0 ;
+  }
+
+  if (th->t_trans_id != SB_JOURNAL(p_s_sb)->j_trans_id) {
+    reiserfs_panic(th->t_super, "journal-1577: handle trans id %ld != current trans id %ld\n", 
+                   th->t_trans_id, SB_JOURNAL(p_s_sb)->j_trans_id);
+  }
+  p_s_sb->s_dirt = 1 ;
+
+  prepared = test_and_clear_bit(BH_JPrepared, &bh->b_state) ;
+  /* already in this transaction, we are done */
+  if (buffer_journaled(bh)) {
+    PROC_INFO_INC( p_s_sb, journal.mark_dirty_already );
+    return 0 ;
+  }
+
+  /* this must be turned into a panic instead of a warning.  We can't allow
+  ** a dirty or journal_dirty or locked buffer to be logged, as some changes
+  ** could get to disk too early.  NOT GOOD.
+  */
+  if (!prepared || buffer_locked(bh)) {
+    reiserfs_warning(p_s_sb, "journal-1777: buffer %lu bad state %cPREPARED %cLOCKED %cDIRTY %cJDIRTY_WAIT\n", bh->b_blocknr, prepared ? ' ' : '!', 
+                            buffer_locked(bh) ? ' ' : '!',
+			    buffer_dirty(bh) ? ' ' : '!',
+			    buffer_journal_dirty(bh) ? ' ' : '!') ;
+    show_reiserfs_locks() ;
+  }
+  count_already_incd = clear_prepared_bits(bh) ;
+
+  if (atomic_read(&(SB_JOURNAL(p_s_sb)->j_wcount)) <= 0) {
+    reiserfs_warning(p_s_sb, "journal-1409: journal_mark_dirty returning because j_wcount was %d\n", atomic_read(&(SB_JOURNAL(p_s_sb)->j_wcount))) ;
+    return 1 ;
+  }
+  /* this error means I've screwed up, and we've overflowed the transaction.  
+  ** Nothing can be done here, except make the FS readonly or panic.
+  */ 
+  if (SB_JOURNAL(p_s_sb)->j_len >= SB_JOURNAL_TRANS_MAX(p_s_sb)) { 
+    reiserfs_panic(th->t_super, "journal-1413: journal_mark_dirty: j_len (%lu) is too big\n", SB_JOURNAL(p_s_sb)->j_len) ;
+  }
+
+  if (buffer_journal_dirty(bh)) {
+    count_already_incd = 1 ;
+    PROC_INFO_INC( p_s_sb, journal.mark_dirty_notjournal );
+    mark_buffer_notjournal_dirty(bh) ;
+  }
+
+  if (buffer_dirty(bh)) {
+    clear_bit(BH_Dirty, &bh->b_state) ;
+  }
+
+  if (buffer_journaled(bh)) { /* must double check after getting lock */
+    goto done ;
+  }
+
+  if (SB_JOURNAL(p_s_sb)->j_len > SB_JOURNAL(p_s_sb)->j_len_alloc) {
+    SB_JOURNAL(p_s_sb)->j_len_alloc = SB_JOURNAL(p_s_sb)->j_len + JOURNAL_PER_BALANCE_CNT ;
+  }
+
+  set_bit(BH_JDirty, &bh->b_state) ;
+
+  /* now put this guy on the end */
+  if (!cn) {
+    cn = get_cnode(p_s_sb) ;
+    if (!cn) {
+      reiserfs_panic(p_s_sb, "get_cnode failed!\n"); 
+    }
+
+    if (th->t_blocks_logged == th->t_blocks_allocated) {
+      th->t_blocks_allocated += JOURNAL_PER_BALANCE_CNT ;
+      SB_JOURNAL(p_s_sb)->j_len_alloc += JOURNAL_PER_BALANCE_CNT ;
+    }
+    th->t_blocks_logged++ ;
+    SB_JOURNAL(p_s_sb)->j_len++ ;
+
+    cn->bh = bh ;
+    cn->blocknr = bh->b_blocknr ;
+    cn->dev = bh->b_dev ;
+    cn->jlist = NULL ;
+    insert_journal_hash(SB_JOURNAL(p_s_sb)->j_hash_table, cn) ;
+    if (!count_already_incd) {
+      get_bh(bh) ;
+    }
+  }
+  cn->next = NULL ;
+  cn->prev = SB_JOURNAL(p_s_sb)->j_last ;
+  cn->bh = bh ;
+  if (SB_JOURNAL(p_s_sb)->j_last) {
+    SB_JOURNAL(p_s_sb)->j_last->next = cn ;
+    SB_JOURNAL(p_s_sb)->j_last = cn ;
+  } else {
+    SB_JOURNAL(p_s_sb)->j_first = cn ;
+    SB_JOURNAL(p_s_sb)->j_last = cn ;
+  }
+done:
+  return 0 ;
+}
+
+/*
+** if buffer already in current transaction, do a journal_mark_dirty
+** otherwise, just mark it dirty and move on.  Used for writes to meta blocks
+** that don't need journaling
+*/
+int journal_mark_dirty_nolog(struct reiserfs_transaction_handle *th, struct super_block *p_s_sb, struct buffer_head *bh) {
+  if (reiserfs_dont_log(th->t_super) || buffer_journaled(bh) || 
+      buffer_journal_dirty(bh)) {
+    return journal_mark_dirty(th, p_s_sb, bh) ;
+  }
+  if (get_journal_hash_dev(SB_JOURNAL(p_s_sb)->j_list_hash_table, bh->b_dev,bh->b_blocknr,bh->b_size)) {
+    return journal_mark_dirty(th, p_s_sb, bh) ;
+  }
+  mark_buffer_dirty(bh) ;
+  return 0 ;
+}
+
+int journal_end(struct reiserfs_transaction_handle *th, struct super_block *p_s_sb, unsigned long nblocks) {
+  return do_journal_end(th, p_s_sb, nblocks, 0) ;
+}
+
+/* removes from the current transaction, relsing and descrementing any counters.  
+** also files the removed buffer directly onto the clean list
+**
+** called by journal_mark_freed when a block has been deleted
+**
+** returns 1 if it cleaned and relsed the buffer. 0 otherwise
+*/
+static int remove_from_transaction(struct super_block *p_s_sb, unsigned long blocknr, int already_cleaned) {
+  struct buffer_head *bh ;
+  struct reiserfs_journal_cnode *cn ;
+  int ret = 0;
+
+  cn = get_journal_hash_dev(SB_JOURNAL(p_s_sb)->j_hash_table, p_s_sb->s_dev, blocknr, p_s_sb->s_blocksize) ;
+  if (!cn || !cn->bh) {
+    return ret ;
+  }
+  bh = cn->bh ;
+  if (cn->prev) {
+    cn->prev->next = cn->next ;
+  }
+  if (cn->next) {
+    cn->next->prev = cn->prev ;
+  }
+  if (cn == SB_JOURNAL(p_s_sb)->j_first) {
+    SB_JOURNAL(p_s_sb)->j_first = cn->next ;  
+  }
+  if (cn == SB_JOURNAL(p_s_sb)->j_last) {
+    SB_JOURNAL(p_s_sb)->j_last = cn->prev ;
+  }
+  remove_journal_hash(SB_JOURNAL(p_s_sb)->j_hash_table, NULL, bh, 0) ; 
+  mark_buffer_not_journaled(bh) ; /* don't log this one */
+
+  if (!already_cleaned) {
+    mark_buffer_notjournal_dirty(bh) ; 
+    put_bh(bh) ;
+    if (atomic_read(&(bh->b_count)) < 0) {
+      reiserfs_warning(p_s_sb, "journal-1752: remove from trans, b_count < 0\n") ;
+    }
+    if (!buffer_locked(bh)) reiserfs_clean_and_file_buffer(bh) ; 
+    ret = 1 ;
+  }
+  SB_JOURNAL(p_s_sb)->j_len-- ;
+  SB_JOURNAL(p_s_sb)->j_len_alloc-- ;
+  free_cnode(p_s_sb, cn) ;
+  return ret ;
+}
+
+/* removes from a specific journal list hash */
+static int remove_from_journal_list(struct super_block *s, struct reiserfs_journal_list *jl, struct buffer_head *bh, int remove_freed) {
+  remove_journal_hash(SB_JOURNAL(s)->j_list_hash_table, jl, bh, remove_freed) ;
+  return 0 ;
+}
+
+/*
+** for any cnode in a journal list, it can only be dirtied of all the
+** transactions that include it are commited to disk.
+** this checks through each transaction, and returns 1 if you are allowed to dirty,
+** and 0 if you aren't
+**
+** it is called by dirty_journal_list, which is called after flush_commit_list has gotten all the log
+** blocks for a given transaction on disk
+**
+*/
+static int can_dirty(struct reiserfs_journal_cnode *cn) {
+  kdev_t dev = cn->dev ;
+  unsigned long blocknr = cn->blocknr  ;
+  struct reiserfs_journal_cnode *cur = cn->hprev ;
+  int can_dirty = 1 ;
+  
+  /* first test hprev.  These are all newer than cn, so any node here
+  ** with the name block number and dev means this node can't be sent
+  ** to disk right now.
+  */
+  while(cur && can_dirty) {
+    if (cur->jlist && cur->bh && cur->blocknr && cur->dev == dev && 
+        cur->blocknr == blocknr) {
+      can_dirty = 0 ;
+    }
+    cur = cur->hprev ;
+  }
+  /* then test hnext.  These are all older than cn.  As long as they
+  ** are committed to the log, it is safe to write cn to disk
+  */
+  cur = cn->hnext ;
+  while(cur && can_dirty) {
+    if (cur->jlist && cur->jlist->j_len > 0 && 
+        atomic_read(&(cur->jlist->j_commit_left)) > 0 && cur->bh && 
+        cur->blocknr && cur->dev == dev && cur->blocknr == blocknr) {
+      can_dirty = 0 ;
+    }
+    cur = cur->hnext ;
+  }
+  return can_dirty ;
+}
+
+/* syncs the commit blocks, but does not force the real buffers to disk
+** will wait until the current transaction is done/commited before returning 
+*/
+int journal_end_sync(struct reiserfs_transaction_handle *th, struct super_block *p_s_sb, unsigned long nblocks) {
+
+  if (SB_JOURNAL(p_s_sb)->j_len == 0) {
+    reiserfs_prepare_for_journal(p_s_sb, SB_BUFFER_WITH_SB(p_s_sb), 1) ;
+    journal_mark_dirty(th, p_s_sb, SB_BUFFER_WITH_SB(p_s_sb)) ;
+  }
+  return do_journal_end(th, p_s_sb, nblocks, COMMIT_NOW | WAIT) ;
+}
+
+int show_reiserfs_locks(void) {
+
+  dump_journal_writers() ;
+  return 0 ;
+}
+
+/*
+** used to get memory back from async commits that are floating around
+** and to reclaim any blocks deleted but unusable because their commits
+** haven't hit disk yet.  called from bitmap.c
+**
+** if it starts flushing things, it ors SCHEDULE_OCCURRED into repeat.
+** note, this is just if schedule has a chance of occuring.  I need to 
+** change flush_commit_lists to have a repeat parameter too.
+**
+*/
+void flush_async_commits(struct super_block *p_s_sb) {
+  int i ;
+
+  for (i = 0 ; i < JOURNAL_LIST_COUNT ; i++) {
+    if (i != SB_JOURNAL_LIST_INDEX(p_s_sb)) {
+      flush_commit_list(p_s_sb, SB_JOURNAL_LIST(p_s_sb) + i, 1) ; 
+    }
+  }
+}
+
+/*
+** flushes any old transactions to disk
+** ends the current transaction if it is too old
+**
+** also calls flush_journal_list with old_only == 1, which allows me to reclaim
+** memory and such from the journal lists whose real blocks are all on disk.
+**
+** called by sync_dev_journal from buffer.c
+*/
+int flush_old_commits(struct super_block *p_s_sb, int immediate) {
+  int i ;
+  int count = 0;
+  int start ; 
+  time_t now ; 
+  struct reiserfs_transaction_handle th ; 
+
+  start =  SB_JOURNAL_LIST_INDEX(p_s_sb) ;
+  now = CURRENT_TIME ;
+
+  /* safety check so we don't flush while we are replaying the log during mount */
+  if (SB_JOURNAL_LIST_INDEX(p_s_sb) < 0) {
+    return 0  ;
+  }
+  /* starting with oldest, loop until we get to the start */
+  i = (SB_JOURNAL_LIST_INDEX(p_s_sb) + 1) % JOURNAL_LIST_COUNT ;
+  while(i != start) {
+    if (SB_JOURNAL_LIST(p_s_sb)[i].j_len > 0 && ((now - SB_JOURNAL_LIST(p_s_sb)[i].j_timestamp) > SB_JOURNAL_MAX_COMMIT_AGE(p_s_sb) ||
+       immediate)) {
+      /* we have to check again to be sure the current transaction did not change */
+      if (i != SB_JOURNAL_LIST_INDEX(p_s_sb))  {
+	flush_commit_list(p_s_sb, SB_JOURNAL_LIST(p_s_sb) + i, 1) ;
+      }
+    }
+    i = (i + 1) % JOURNAL_LIST_COUNT ;
+    count++ ;
+  }
+  /* now, check the current transaction.  If there are no writers, and it is too old, finish it, and
+  ** force the commit blocks to disk
+  */
+  if (!immediate && atomic_read(&(SB_JOURNAL(p_s_sb)->j_wcount)) <= 0 &&  
+     SB_JOURNAL(p_s_sb)->j_trans_start_time > 0 && 
+     SB_JOURNAL(p_s_sb)->j_len > 0 && 
+     (now - SB_JOURNAL(p_s_sb)->j_trans_start_time) > SB_JOURNAL_MAX_TRANS_AGE(p_s_sb)) {
+    journal_join(&th, p_s_sb, 1) ;
+    reiserfs_prepare_for_journal(p_s_sb, SB_BUFFER_WITH_SB(p_s_sb), 1) ;
+    journal_mark_dirty(&th, p_s_sb, SB_BUFFER_WITH_SB(p_s_sb)) ;
+    do_journal_end(&th, p_s_sb,1, COMMIT_NOW) ;
+  } else if (immediate) { /* belongs above, but I wanted this to be very explicit as a special case.  If they say to 
+                             flush, we must be sure old transactions hit the disk too. */
+    journal_join(&th, p_s_sb, 1) ;
+    reiserfs_prepare_for_journal(p_s_sb, SB_BUFFER_WITH_SB(p_s_sb), 1) ;
+    journal_mark_dirty(&th, p_s_sb, SB_BUFFER_WITH_SB(p_s_sb)) ;
+    do_journal_end(&th, p_s_sb,1, COMMIT_NOW | WAIT) ;
+  }
+   reiserfs_journal_kupdate(p_s_sb) ;
+   return 0 ;
+}
+
+/*
+** returns 0 if do_journal_end should return right away, returns 1 if do_journal_end should finish the commit
+** 
+** if the current transaction is too old, but still has writers, this will wait on j_join_wait until all 
+** the writers are done.  By the time it wakes up, the transaction it was called has already ended, so it just
+** flushes the commit list and returns 0.
+**
+** Won't batch when flush or commit_now is set.  Also won't batch when others are waiting on j_join_wait.
+** 
+** Note, we can't allow the journal_end to proceed while there are still writers in the log.
+*/
+static int check_journal_end(struct reiserfs_transaction_handle *th, struct super_block  * p_s_sb, 
+                             unsigned long nblocks, int flags) {
+
+  time_t now ;
+  int flush = flags & FLUSH_ALL ;
+  int commit_now = flags & COMMIT_NOW ;
+  int wait_on_commit = flags & WAIT ;
+
+  if (th->t_trans_id != SB_JOURNAL(p_s_sb)->j_trans_id) {
+    reiserfs_panic(th->t_super, "journal-1577: handle trans id %ld != current trans id %ld\n", 
+                   th->t_trans_id, SB_JOURNAL(p_s_sb)->j_trans_id);
+  }
+
+  SB_JOURNAL(p_s_sb)->j_len_alloc -= (th->t_blocks_allocated - th->t_blocks_logged) ;
+  if (atomic_read(&(SB_JOURNAL(p_s_sb)->j_wcount)) > 0) { /* <= 0 is allowed.  unmounting might not call begin */
+    atomic_dec(&(SB_JOURNAL(p_s_sb)->j_wcount)) ;
+  }
+
+  /* BUG, deal with case where j_len is 0, but people previously freed blocks need to be released 
+  ** will be dealt with by next transaction that actually writes something, but should be taken
+  ** care of in this trans
+  */
+  if (SB_JOURNAL(p_s_sb)->j_len == 0) {
+    int wcount = atomic_read(&(SB_JOURNAL(p_s_sb)->j_wcount)) ;
+    unlock_journal(p_s_sb) ;
+    if (atomic_read(&(SB_JOURNAL(p_s_sb)->j_jlock))  > 0 && wcount <= 0) {
+      atomic_dec(&(SB_JOURNAL(p_s_sb)->j_jlock)) ;
+      wake_up(&(SB_JOURNAL(p_s_sb)->j_join_wait)) ;
+    }
+    return 0 ;
+  }
+  /* if wcount > 0, and we are called to with flush or commit_now,
+  ** we wait on j_join_wait.  We will wake up when the last writer has
+  ** finished the transaction, and started it on its way to the disk.
+  ** Then, we flush the commit or journal list, and just return 0 
+  ** because the rest of journal end was already done for this transaction.
+  */
+  if (atomic_read(&(SB_JOURNAL(p_s_sb)->j_wcount)) > 0) {
+    if (flush || commit_now) {
+      int orig_jindex = SB_JOURNAL_LIST_INDEX(p_s_sb) ;
+      atomic_set(&(SB_JOURNAL(p_s_sb)->j_jlock), 1) ;
+      if (flush) {
+        SB_JOURNAL(p_s_sb)->j_next_full_flush = 1 ;
+      }
+      unlock_journal(p_s_sb) ;
+      /* sleep while the current transaction is still j_jlocked */
+      while(atomic_read(&(SB_JOURNAL(p_s_sb)->j_jlock)) && 
+            SB_JOURNAL(p_s_sb)->j_trans_id == th->t_trans_id) {
+	sleep_on(&(SB_JOURNAL(p_s_sb)->j_join_wait)) ;
+      }
+      if (commit_now) {
+	if (wait_on_commit) {
+	  flush_commit_list(p_s_sb,  SB_JOURNAL_LIST(p_s_sb) + orig_jindex, 1) ;
+	} else {
+	  commit_flush_async(p_s_sb, orig_jindex) ; 
+	}
+      }
+      return 0 ;
+    } 
+    unlock_journal(p_s_sb) ;
+    return 0 ;
+  }
+
+  /* deal with old transactions where we are the last writers */
+  now = CURRENT_TIME ;
+  if ((now - SB_JOURNAL(p_s_sb)->j_trans_start_time) > SB_JOURNAL_MAX_TRANS_AGE(p_s_sb)) {
+    commit_now = 1 ;
+    SB_JOURNAL(p_s_sb)->j_next_async_flush = 1 ;
+  }
+  /* don't batch when someone is waiting on j_join_wait */
+  /* don't batch when syncing the commit or flushing the whole trans */
+  if (!(SB_JOURNAL(p_s_sb)->j_must_wait > 0) && !(atomic_read(&(SB_JOURNAL(p_s_sb)->j_jlock))) && !flush && !commit_now && 
+      (SB_JOURNAL(p_s_sb)->j_len < SB_JOURNAL_MAX_BATCH(p_s_sb))  && 
+      SB_JOURNAL(p_s_sb)->j_len_alloc < SB_JOURNAL_MAX_BATCH(p_s_sb) && SB_JOURNAL(p_s_sb)->j_cnode_free > (SB_JOURNAL_TRANS_MAX(p_s_sb) * 3)) {
+    SB_JOURNAL(p_s_sb)->j_bcount++ ;
+    unlock_journal(p_s_sb) ;
+    return 0 ;
+  }
+
+  if (SB_JOURNAL(p_s_sb)->j_start > SB_ONDISK_JOURNAL_SIZE(p_s_sb)) {
+    reiserfs_panic(p_s_sb, "journal-003: journal_end: j_start (%ld) is too high\n", SB_JOURNAL(p_s_sb)->j_start) ;
+  }
+  return 1 ;
+}
+
+/*
+** Does all the work that makes deleting blocks safe.
+** when deleting a block mark BH_JNew, just remove it from the current transaction, clean it's buffer_head and move on.
+** 
+** otherwise:
+** set a bit for the block in the journal bitmap.  That will prevent it from being allocated for unformatted nodes
+** before this transaction has finished.
+**
+** mark any cnodes for this block as BLOCK_FREED, and clear their bh pointers.  That will prevent any old transactions with
+** this block from trying to flush to the real location.  Since we aren't removing the cnode from the journal_list_hash,
+** the block can't be reallocated yet.
+**
+** Then remove it from the current transaction, decrementing any counters and filing it on the clean list.
+*/
+int journal_mark_freed(struct reiserfs_transaction_handle *th, struct super_block *p_s_sb, unsigned long blocknr) {
+  struct reiserfs_journal_cnode *cn = NULL ;
+  struct buffer_head *bh = NULL ;
+  struct reiserfs_list_bitmap *jb = NULL ;
+  int cleaned = 0 ;
+  
+  if (reiserfs_dont_log(th->t_super)) {
+    bh = sb_get_hash_table(p_s_sb, blocknr) ;
+    if (bh && buffer_dirty (bh)) {
+      reiserfs_warning (p_s_sb, "journal_mark_freed(dont_log): dirty buffer on hash list: %lx %ld\n", bh->b_state, blocknr);
+      BUG ();
+    }
+    brelse (bh);
+    return 0 ;
+  }
+  bh = sb_get_hash_table(p_s_sb, blocknr) ;
+  /* if it is journal new, we just remove it from this transaction */
+  if (bh && buffer_journal_new(bh)) {
+    mark_buffer_notjournal_new(bh) ;
+    clear_prepared_bits(bh) ;
+    cleaned = remove_from_transaction(p_s_sb, blocknr, cleaned) ;
+  } else {
+    /* set the bit for this block in the journal bitmap for this transaction */
+    jb = SB_JOURNAL_LIST(p_s_sb)[SB_JOURNAL_LIST_INDEX(p_s_sb)].j_list_bitmap ;
+    if (!jb) {
+      reiserfs_panic(p_s_sb, "journal-1702: journal_mark_freed, journal_list_bitmap is NULL\n") ;
+    }
+    set_bit_in_list_bitmap(p_s_sb, blocknr, jb) ;
+
+    /* Note, the entire while loop is not allowed to schedule.  */
+
+    if (bh) {
+      clear_prepared_bits(bh) ;
+    }
+    cleaned = remove_from_transaction(p_s_sb, blocknr, cleaned) ;
+
+    /* find all older transactions with this block, make sure they don't try to write it out */
+    cn = get_journal_hash_dev(SB_JOURNAL(p_s_sb)->j_list_hash_table, p_s_sb->s_dev, blocknr, p_s_sb->s_blocksize) ;
+    while (cn) {
+      if (p_s_sb->s_dev == cn->dev && blocknr == cn->blocknr) {
+	set_bit(BLOCK_FREED, &cn->state) ;
+	if (cn->bh) {
+	  if (!cleaned) {
+	    /* remove_from_transaction will brelse the buffer if it was 
+	    ** in the current trans
+	    */
+	    mark_buffer_notjournal_dirty(cn->bh) ;
+	    cleaned = 1 ;
+	    put_bh(cn->bh) ;
+	    if (atomic_read(&(cn->bh->b_count)) < 0) {
+	      reiserfs_warning(p_s_sb, "journal-2138: cn->bh->b_count < 0\n") ;
+	    }
+	  }
+	  if (cn->jlist) { /* since we are clearing the bh, we MUST dec nonzerolen */
+	    atomic_dec(&(cn->jlist->j_nonzerolen)) ;
+	  }
+	  cn->bh = NULL ; 
+	} 
+      }
+      cn = cn->hnext ;
+    }
+  }
+
+  if (bh) {
+    reiserfs_clean_and_file_buffer(bh) ;
+    put_bh(bh) ; /* get_hash grabs the buffer */
+    if (atomic_read(&(bh->b_count)) < 0) {
+      reiserfs_warning(p_s_sb, "journal-2165: bh->b_count < 0\n") ;
+    }
+  }
+  return 0 ;
+}
+
+void reiserfs_update_inode_transaction(struct inode *inode) {
+  
+  inode->u.reiserfs_i.i_trans_index = SB_JOURNAL_LIST_INDEX(inode->i_sb);
+
+  inode->u.reiserfs_i.i_trans_id = SB_JOURNAL(inode->i_sb)->j_trans_id ;
+}
+
+void reiserfs_update_tail_transaction(struct inode *inode) {
+  
+  inode->u.reiserfs_i.i_tail_trans_index = SB_JOURNAL_LIST_INDEX(inode->i_sb);
+
+  inode->u.reiserfs_i.i_tail_trans_id = SB_JOURNAL(inode->i_sb)->j_trans_id ;
+}
+
+static void __commit_trans_index(struct inode *inode, unsigned long id,
+                                 unsigned long index) 
+{
+    struct reiserfs_journal_list *jl ;
+    struct reiserfs_transaction_handle th ;
+    struct super_block *sb = inode->i_sb ;
+
+    jl = SB_JOURNAL_LIST(sb) + index;
+
+    /* is it from the current transaction, or from an unknown transaction? */
+    if (id == SB_JOURNAL(sb)->j_trans_id) {
+	journal_join(&th, sb, 1) ;
+	journal_end_sync(&th, sb, 1) ;
+    } else if (jl->j_trans_id == id) {
+	flush_commit_list(sb, jl, 1) ;
+    }
+    /* if the transaction id does not match, this list is long since flushed
+    ** and we don't have to do anything here
+    */
+}
+void reiserfs_commit_for_tail(struct inode *inode) {
+    unsigned long id = inode->u.reiserfs_i.i_tail_trans_id;
+    unsigned long index = inode->u.reiserfs_i.i_tail_trans_index;
+
+    /* for tails, if this info is unset there's nothing to commit */
+    if (id && index)
+	__commit_trans_index(inode, id, index);
+}
+void reiserfs_commit_for_inode(struct inode *inode) {
+    unsigned long id = inode->u.reiserfs_i.i_trans_id;
+    unsigned long index = inode->u.reiserfs_i.i_trans_index;
+
+    /* for the whole inode, assume unset id or index means it was
+     * changed in the current transaction.  More conservative
+     */
+    if (!id || !index)
+	reiserfs_update_inode_transaction(inode) ;
+
+    __commit_trans_index(inode, id, index);
+}
+
+void reiserfs_restore_prepared_buffer(struct super_block *p_s_sb, 
+                                      struct buffer_head *bh) {
+  PROC_INFO_INC( p_s_sb, journal.restore_prepared );
+  if (reiserfs_dont_log (p_s_sb))
+    return;
+
+  if (!bh) {
+    return ;
+  }
+  clear_bit(BH_JPrepared, &bh->b_state) ;
+}
+
+extern struct tree_balance *cur_tb ;
+/*
+** before we can change a metadata block, we have to make sure it won't
+** be written to disk while we are altering it.  So, we must:
+** clean it
+** wait on it.
+** 
+*/
+void reiserfs_prepare_for_journal(struct super_block *p_s_sb, 
+                                  struct buffer_head *bh, int wait) {
+  int retry_count = 0 ;
+
+  PROC_INFO_INC( p_s_sb, journal.prepare );
+  if (reiserfs_dont_log (p_s_sb))
+    return;
+
+  while(!test_bit(BH_JPrepared, &bh->b_state) ||
+        (wait && buffer_locked(bh))) {
+    if (buffer_journaled(bh)) {
+      set_bit(BH_JPrepared, &bh->b_state) ;
+      return ;
+    }
+    set_bit(BH_JPrepared, &bh->b_state) ;
+    if (wait) {
+      RFALSE( buffer_locked(bh) && cur_tb != NULL,
+	      "waiting while do_balance was running\n") ;
+      wait_on_buffer(bh) ;
+    }
+    PROC_INFO_INC( p_s_sb, journal.prepare_retry );
+    retry_count++ ;
+  }
+}
+
+/* 
+** long and ugly.  If flush, will not return until all commit
+** blocks and all real buffers in the trans are on disk.
+** If no_async, won't return until all commit blocks are on disk.
+**
+** keep reading, there are comments as you go along
+*/
+static int do_journal_end(struct reiserfs_transaction_handle *th, struct super_block  * p_s_sb, unsigned long nblocks, 
+		          int flags) {
+  struct reiserfs_journal_cnode *cn, *next, *jl_cn; 
+  struct reiserfs_journal_cnode *last_cn = NULL;
+  struct reiserfs_journal_desc *desc ; 
+  struct reiserfs_journal_commit *commit ; 
+  struct buffer_head *c_bh ; /* commit bh */
+  struct buffer_head *d_bh ; /* desc bh */
+  int cur_write_start = 0 ; /* start index of current log write */
+  int cur_blocks_left = 0 ; /* number of journal blocks left to write */
+  int old_start ;
+  int i ;
+  int jindex ;
+  int orig_jindex ;
+  int flush = flags & FLUSH_ALL ;
+  int commit_now = flags & COMMIT_NOW ;
+  int wait_on_commit = flags & WAIT ;
+  struct reiserfs_super_block *rs ; 
+
+  if (reiserfs_dont_log(th->t_super)) {
+    return 0 ;
+  }
+
+  lock_journal(p_s_sb) ;
+  if (SB_JOURNAL(p_s_sb)->j_next_full_flush) {
+    flags |= FLUSH_ALL ;
+    flush = 1 ;
+  }
+  if (SB_JOURNAL(p_s_sb)->j_next_async_flush) {
+    flags |= COMMIT_NOW ;
+    commit_now = 1 ;
+  }
+
+  /* check_journal_end locks the journal, and unlocks if it does not return 1 
+  ** it tells us if we should continue with the journal_end, or just return
+  */
+  if (!check_journal_end(th, p_s_sb, nblocks, flags)) {
+    return 0 ;
+  }
+
+  /* check_journal_end might set these, check again */
+  if (SB_JOURNAL(p_s_sb)->j_next_full_flush) {
+    flush = 1 ;
+  }
+  if (SB_JOURNAL(p_s_sb)->j_next_async_flush) {
+    commit_now = 1 ;
+  }
+  /*
+  ** j must wait means we have to flush the log blocks, and the real blocks for
+  ** this transaction
+  */
+  if (SB_JOURNAL(p_s_sb)->j_must_wait > 0) {
+    flush = 1 ;
+  }
+
+#ifdef REISERFS_PREALLOCATE
+  reiserfs_discard_all_prealloc(th); /* it should not involve new blocks into
+				      * the transaction */
+#endif
+  
+  rs = SB_DISK_SUPER_BLOCK(p_s_sb) ;
+  /* setup description block */
+  d_bh = journal_getblk(p_s_sb, SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + SB_JOURNAL(p_s_sb)->j_start) ; 
+  mark_buffer_uptodate(d_bh, 1) ;
+  desc = (struct reiserfs_journal_desc *)(d_bh)->b_data ;
+  memset(desc, 0, sizeof(struct reiserfs_journal_desc)) ;
+  memcpy(desc->j_magic, JOURNAL_DESC_MAGIC, 8) ;
+  desc->j_trans_id = cpu_to_le32(SB_JOURNAL(p_s_sb)->j_trans_id) ;
+
+  /* setup commit block.  Don't write (keep it clean too) this one until after everyone else is written */
+  c_bh =  journal_getblk(p_s_sb, SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + 
+		 ((SB_JOURNAL(p_s_sb)->j_start + SB_JOURNAL(p_s_sb)->j_len + 1) % SB_ONDISK_JOURNAL_SIZE(p_s_sb))) ;
+  commit = (struct reiserfs_journal_commit *)c_bh->b_data ;
+  memset(commit, 0, sizeof(struct reiserfs_journal_commit)) ;
+  commit->j_trans_id = cpu_to_le32(SB_JOURNAL(p_s_sb)->j_trans_id) ;
+  mark_buffer_uptodate(c_bh, 1) ;
+
+  /* init this journal list */
+  atomic_set(&(SB_JOURNAL_LIST(p_s_sb)[SB_JOURNAL_LIST_INDEX(p_s_sb)].j_older_commits_done), 0) ;
+  SB_JOURNAL_LIST(p_s_sb)[SB_JOURNAL_LIST_INDEX(p_s_sb)].j_trans_id = SB_JOURNAL(p_s_sb)->j_trans_id ;
+  SB_JOURNAL_LIST(p_s_sb)[SB_JOURNAL_LIST_INDEX(p_s_sb)].j_timestamp = SB_JOURNAL(p_s_sb)->j_trans_start_time ;
+  SB_JOURNAL_LIST(p_s_sb)[SB_JOURNAL_LIST_INDEX(p_s_sb)].j_commit_bh = c_bh ;
+  SB_JOURNAL_LIST(p_s_sb)[SB_JOURNAL_LIST_INDEX(p_s_sb)].j_start = SB_JOURNAL(p_s_sb)->j_start ;
+  SB_JOURNAL_LIST(p_s_sb)[SB_JOURNAL_LIST_INDEX(p_s_sb)].j_len = SB_JOURNAL(p_s_sb)->j_len ;  
+  atomic_set(&(SB_JOURNAL_LIST(p_s_sb)[SB_JOURNAL_LIST_INDEX(p_s_sb)].j_nonzerolen), SB_JOURNAL(p_s_sb)->j_len) ;
+  atomic_set(&(SB_JOURNAL_LIST(p_s_sb)[SB_JOURNAL_LIST_INDEX(p_s_sb)].j_commit_left), SB_JOURNAL(p_s_sb)->j_len + 2);
+  SB_JOURNAL_LIST(p_s_sb)[SB_JOURNAL_LIST_INDEX(p_s_sb)].j_realblock = NULL ;
+  atomic_set(&(SB_JOURNAL_LIST(p_s_sb)[SB_JOURNAL_LIST_INDEX(p_s_sb)].j_commit_flushing), 1) ;
+  atomic_set(&(SB_JOURNAL_LIST(p_s_sb)[SB_JOURNAL_LIST_INDEX(p_s_sb)].j_flushing), 1) ;
+
+  /* which is faster, locking/unlocking at the start and end of the for
+  ** or locking once per iteration around the insert_journal_hash?
+  ** eitherway, we are write locking insert_journal_hash.  The ENTIRE FOR
+  ** LOOP MUST not cause schedule to occur.
+  */
+
+  /* for each real block, add it to the journal list hash,
+  ** copy into real block index array in the commit or desc block
+  */
+  for (i = 0, cn = SB_JOURNAL(p_s_sb)->j_first ; cn ; cn = cn->next, i++) {
+    if (test_bit(BH_JDirty, &cn->bh->b_state) ) {
+      jl_cn = get_cnode(p_s_sb) ;
+      if (!jl_cn) {
+        reiserfs_panic(p_s_sb, "journal-1676, get_cnode returned NULL\n") ;
+      }
+      if (i == 0) {
+        SB_JOURNAL_LIST(p_s_sb)[SB_JOURNAL_LIST_INDEX(p_s_sb)].j_realblock = jl_cn ;
+      }
+      jl_cn->prev = last_cn ;
+      jl_cn->next = NULL ;
+      if (last_cn) {
+        last_cn->next = jl_cn ;
+      }
+      last_cn = jl_cn ;
+      /* make sure the block we are trying to log is not a block 
+         of journal or reserved area */
+
+      if (is_block_in_log_or_reserved_area(p_s_sb, cn->bh->b_blocknr)) {
+        reiserfs_panic(p_s_sb, "journal-2332: Trying to log block %lu, which is a log block\n", cn->bh->b_blocknr) ;
+      }
+      jl_cn->blocknr = cn->bh->b_blocknr ; 
+      jl_cn->state = 0 ;
+      jl_cn->dev = cn->bh->b_dev ; 
+      jl_cn->bh = cn->bh ;
+      jl_cn->jlist = SB_JOURNAL_LIST(p_s_sb) + SB_JOURNAL_LIST_INDEX(p_s_sb) ;
+      insert_journal_hash(SB_JOURNAL(p_s_sb)->j_list_hash_table, jl_cn) ; 
+      if (i < JOURNAL_TRANS_HALF) {
+	desc->j_realblock[i] = cpu_to_le32(cn->bh->b_blocknr) ;
+      } else {
+	commit->j_realblock[i - JOURNAL_TRANS_HALF] = cpu_to_le32(cn->bh->b_blocknr) ;
+      }
+    } else {
+      i-- ;
+    }
+  }
+
+  desc->j_len = cpu_to_le32(SB_JOURNAL(p_s_sb)->j_len)  ;
+  desc->j_mount_id = cpu_to_le32(SB_JOURNAL(p_s_sb)->j_mount_id) ;
+  desc->j_trans_id = cpu_to_le32(SB_JOURNAL(p_s_sb)->j_trans_id) ;
+  commit->j_len = cpu_to_le32(SB_JOURNAL(p_s_sb)->j_len) ;
+
+  /* special check in case all buffers in the journal were marked for not logging */
+  if (SB_JOURNAL(p_s_sb)->j_len == 0) {
+    brelse(d_bh) ;
+    brelse(c_bh) ;
+    unlock_journal(p_s_sb) ;
+reiserfs_warning(p_s_sb, "journal-2020: do_journal_end: BAD desc->j_len is ZERO\n") ;
+    atomic_set(&(SB_JOURNAL(p_s_sb)->j_jlock), 0) ;
+    wake_up(&(SB_JOURNAL(p_s_sb)->j_join_wait)) ;
+    return 0 ;
+  }
+
+  /* first data block is j_start + 1, so add one to cur_write_start wherever you use it */
+  cur_write_start = SB_JOURNAL(p_s_sb)->j_start ;
+  cur_blocks_left = SB_JOURNAL(p_s_sb)->j_len  ;
+  cn = SB_JOURNAL(p_s_sb)->j_first ;
+  jindex = 1 ; /* start at one so we don't get the desc again */
+  while(cur_blocks_left > 0) {
+    /* copy all the real blocks into log area.  dirty log blocks */
+    if (test_bit(BH_JDirty, &cn->bh->b_state)) {
+      struct buffer_head *tmp_bh ;
+      tmp_bh =  journal_getblk(p_s_sb, SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + 
+		       ((cur_write_start + jindex) % SB_ONDISK_JOURNAL_SIZE(p_s_sb))) ;
+      mark_buffer_uptodate(tmp_bh, 1) ;
+      memcpy(tmp_bh->b_data, cn->bh->b_data, cn->bh->b_size) ;  
+      jindex++ ;
+    } else {
+      /* JDirty cleared sometime during transaction.  don't log this one */
+      reiserfs_warning(p_s_sb, "journal-2048: do_journal_end: BAD, buffer in journal hash, but not JDirty!\n") ;
+    }
+    cn = cn->next ;
+    cur_blocks_left-- ;
+  }
+
+  /* we are done  with both the c_bh and d_bh, but
+  ** c_bh must be written after all other commit blocks,
+  ** so we dirty/relse c_bh in flush_commit_list, with commit_left <= 1.
+  */
+
+  /* now loop through and mark all buffers from this transaction as JDirty_wait
+  ** clear the JDirty bit, clear BH_JNew too.  
+  ** if they weren't JDirty, they weren't logged, just relse them and move on
+  */
+  cn = SB_JOURNAL(p_s_sb)->j_first ; 
+  while(cn) {
+    clear_bit(BH_JNew, &(cn->bh->b_state)) ;
+    if (test_bit(BH_JDirty, &(cn->bh->b_state))) {
+      set_bit(BH_JDirty_wait, &(cn->bh->b_state)) ; 
+      clear_bit(BH_JDirty, &(cn->bh->b_state)) ;
+    } else {
+      brelse(cn->bh) ;
+    }
+    next = cn->next ;
+    free_cnode(p_s_sb, cn) ;
+    cn = next ;
+  }
+
+  /* unlock the journal list for committing and flushing */
+  atomic_set(&(SB_JOURNAL_LIST(p_s_sb)[SB_JOURNAL_LIST_INDEX(p_s_sb)].j_commit_flushing), 0) ;
+  atomic_set(&(SB_JOURNAL_LIST(p_s_sb)[SB_JOURNAL_LIST_INDEX(p_s_sb)].j_flushing), 0) ;
+
+  orig_jindex = SB_JOURNAL_LIST_INDEX(p_s_sb) ;
+  jindex = (SB_JOURNAL_LIST_INDEX(p_s_sb) + 1) % JOURNAL_LIST_COUNT ; 
+  SB_JOURNAL_LIST_INDEX(p_s_sb) = jindex ;
+
+  /* write any buffers that must hit disk before this commit is done */
+  fsync_buffers_list(&(SB_JOURNAL(p_s_sb)->j_dirty_buffers)) ;
+
+  /* honor the flush and async wishes from the caller */
+  if (flush) {
+  
+    flush_commit_list(p_s_sb, SB_JOURNAL_LIST(p_s_sb) + orig_jindex, 1) ;
+    flush_journal_list(p_s_sb,  SB_JOURNAL_LIST(p_s_sb) + orig_jindex , 1) ;  
+  } else if (commit_now) {
+    if (wait_on_commit) {
+      flush_commit_list(p_s_sb, SB_JOURNAL_LIST(p_s_sb) + orig_jindex, 1) ;
+    } else {
+      commit_flush_async(p_s_sb, orig_jindex) ; 
+    }
+  }
+
+  /* reset journal values for the next transaction */
+  old_start = SB_JOURNAL(p_s_sb)->j_start ;
+  SB_JOURNAL(p_s_sb)->j_start = (SB_JOURNAL(p_s_sb)->j_start + SB_JOURNAL(p_s_sb)->j_len + 2) % SB_ONDISK_JOURNAL_SIZE(p_s_sb);
+  atomic_set(&(SB_JOURNAL(p_s_sb)->j_wcount), 0) ;
+  SB_JOURNAL(p_s_sb)->j_bcount = 0 ;
+  SB_JOURNAL(p_s_sb)->j_last = NULL ;
+  SB_JOURNAL(p_s_sb)->j_first = NULL ;
+  SB_JOURNAL(p_s_sb)->j_len = 0 ;
+  SB_JOURNAL(p_s_sb)->j_trans_start_time = 0 ;
+  SB_JOURNAL(p_s_sb)->j_trans_id++ ;
+  SB_JOURNAL(p_s_sb)->j_must_wait = 0 ;
+  SB_JOURNAL(p_s_sb)->j_len_alloc = 0 ;
+  SB_JOURNAL(p_s_sb)->j_next_full_flush = 0 ;
+  SB_JOURNAL(p_s_sb)->j_next_async_flush = 0 ;
+  init_journal_hash(p_s_sb) ; 
+
+  /* if the next transaction has any chance of wrapping, flush 
+  ** transactions that might get overwritten.  If any journal lists are very 
+  ** old flush them as well.  
+  */
+  for (i = 0 ; i < JOURNAL_LIST_COUNT ; i++) {
+    jindex = i ;
+    if (SB_JOURNAL_LIST(p_s_sb)[jindex].j_len > 0 && SB_JOURNAL(p_s_sb)->j_start <= SB_JOURNAL_LIST(p_s_sb)[jindex].j_start) {
+      if ((SB_JOURNAL(p_s_sb)->j_start + SB_JOURNAL_TRANS_MAX(p_s_sb) + 1) >= SB_JOURNAL_LIST(p_s_sb)[jindex].j_start) {
+	flush_journal_list(p_s_sb, SB_JOURNAL_LIST(p_s_sb) + jindex, 1) ; 
+      }
+    } else if (SB_JOURNAL_LIST(p_s_sb)[jindex].j_len > 0 && 
+              (SB_JOURNAL(p_s_sb)->j_start + SB_JOURNAL_TRANS_MAX(p_s_sb) + 1) > SB_ONDISK_JOURNAL_SIZE(p_s_sb)) {
+      if (((SB_JOURNAL(p_s_sb)->j_start + SB_JOURNAL_TRANS_MAX(p_s_sb) + 1) % SB_ONDISK_JOURNAL_SIZE(p_s_sb)) >= 
+            SB_JOURNAL_LIST(p_s_sb)[jindex].j_start) {
+	flush_journal_list(p_s_sb, SB_JOURNAL_LIST(p_s_sb) + jindex, 1 ) ; 
+      }
+    } 
+    /* this check should always be run, to send old lists to disk */
+    if (SB_JOURNAL_LIST(p_s_sb)[jindex].j_len > 0 && 
+              SB_JOURNAL_LIST(p_s_sb)[jindex].j_timestamp < 
+	      (CURRENT_TIME - (SB_JOURNAL_MAX_TRANS_AGE(p_s_sb) * 4))) {
+	flush_journal_list(p_s_sb, SB_JOURNAL_LIST(p_s_sb) + jindex, 1 ) ; 
+    }
+  }
+
+  /* if the next journal_list is still in use, flush it */
+  if (SB_JOURNAL_LIST(p_s_sb)[SB_JOURNAL_LIST_INDEX(p_s_sb)].j_len != 0) {
+    flush_journal_list(p_s_sb, SB_JOURNAL_LIST(p_s_sb) + SB_JOURNAL_LIST_INDEX(p_s_sb), 1) ; 
+  }
+
+  /* we don't want anyone flushing the new transaction's list */
+  atomic_set(&(SB_JOURNAL_LIST(p_s_sb)[SB_JOURNAL_LIST_INDEX(p_s_sb)].j_commit_flushing), 1) ;
+  atomic_set(&(SB_JOURNAL_LIST(p_s_sb)[SB_JOURNAL_LIST_INDEX(p_s_sb)].j_flushing), 1) ;
+  SB_JOURNAL_LIST(p_s_sb)[SB_JOURNAL_LIST_INDEX(p_s_sb)].j_list_bitmap = get_list_bitmap(p_s_sb, SB_JOURNAL_LIST(p_s_sb) + 
+											 SB_JOURNAL_LIST_INDEX(p_s_sb)) ;
+
+  if (!(SB_JOURNAL_LIST(p_s_sb)[SB_JOURNAL_LIST_INDEX(p_s_sb)].j_list_bitmap)) {
+    reiserfs_panic(p_s_sb, "journal-1996: do_journal_end, could not get a list bitmap\n") ;
+  }
+  unlock_journal(p_s_sb) ;
+  atomic_set(&(SB_JOURNAL(p_s_sb)->j_jlock), 0) ;
+  /* wake up any body waiting to join. */
+  wake_up(&(SB_JOURNAL(p_s_sb)->j_join_wait)) ;
+  return 0 ;
+}
+
+
+
diff --git a/fs/reiserfs/lbalance.c b/fs/reiserfs/lbalance.c
new file mode 100644
index 00000000000000..76a9e1a07badfa
--- /dev/null
+++ b/fs/reiserfs/lbalance.c
@@ -0,0 +1,1221 @@
+/*
+ * Copyright 2000-2002 by Hans Reiser, licensing governed by reiserfs/README
+ */
+
+#include <linux/config.h>
+#include <asm/uaccess.h>
+#include <linux/string.h>
+#include <linux/sched.h>
+#include <linux/reiserfs_fs.h>
+
+/* these are used in do_balance.c */
+
+/* leaf_move_items
+   leaf_shift_left
+   leaf_shift_right
+   leaf_delete_items
+   leaf_insert_into_buf
+   leaf_paste_in_buffer
+   leaf_cut_from_buffer
+   leaf_paste_entries
+   */
+
+
+/* copy copy_count entries from source directory item to dest buffer (creating new item if needed) */
+static void leaf_copy_dir_entries (struct buffer_info * dest_bi, struct buffer_head * source, 
+				   int last_first, int item_num, int from, int copy_count)
+{
+    struct buffer_head * dest = dest_bi->bi_bh;
+    int item_num_in_dest;		/* either the number of target item,
+					   or if we must create a new item,
+					   the number of the item we will
+					   create it next to */
+    struct item_head * ih;
+    struct reiserfs_de_head * deh;
+    int copy_records_len;			/* length of all records in item to be copied */
+    char * records;
+
+    ih = B_N_PITEM_HEAD (source, item_num);
+
+    RFALSE( !is_direntry_le_ih (ih), "vs-10000: item must be directory item");
+
+    /* length of all record to be copied and first byte of the last of them */
+    deh = B_I_DEH (source, ih);
+    if (copy_count) {
+	copy_records_len = (from ? deh_location( &(deh[from - 1]) ) :
+            ih_item_len(ih)) - deh_location( &(deh[from + copy_count - 1]));
+	records = source->b_data + ih_location(ih) +
+                                deh_location( &(deh[from + copy_count - 1]));
+    } else {
+	copy_records_len = 0;
+	records = 0;
+    }
+
+    /* when copy last to first, dest buffer can contain 0 items */
+    item_num_in_dest = (last_first == LAST_TO_FIRST) ? (( B_NR_ITEMS(dest) ) ? 0 : -1) : (B_NR_ITEMS(dest) - 1);
+
+    /* if there are no items in dest or the first/last item in dest is not item of the same directory */
+    if ( (item_num_in_dest == - 1) ||
+	(last_first == FIRST_TO_LAST && le_ih_k_offset (ih) == DOT_OFFSET) ||
+	    (last_first == LAST_TO_FIRST && comp_short_le_keys/*COMP_SHORT_KEYS*/ (&ih->ih_key, B_N_PKEY (dest, item_num_in_dest)))) {
+	/* create new item in dest */
+	struct item_head new_ih;
+
+	/* form item header */
+	memcpy (&new_ih.ih_key, &ih->ih_key, KEY_SIZE);
+	put_ih_version( &new_ih, KEY_FORMAT_3_5 );
+	/* calculate item len */
+	put_ih_item_len( &new_ih, DEH_SIZE * copy_count + copy_records_len );
+	put_ih_entry_count( &new_ih, 0 );
+    
+	if (last_first == LAST_TO_FIRST) {
+	    /* form key by the following way */
+	    if (from < I_ENTRY_COUNT(ih)) {
+		set_le_ih_k_offset( &new_ih, deh_offset( &(deh[from]) ) );
+		/*memcpy (&new_ih.ih_key.k_offset, &deh[from].deh_offset, SHORT_KEY_SIZE);*/
+	    } else {
+		/* no entries will be copied to this item in this function */
+		set_le_ih_k_offset (&new_ih, U32_MAX);
+		/* this item is not yet valid, but we want I_IS_DIRECTORY_ITEM to return 1 for it, so we -1 */
+	    }
+	    set_le_key_k_type (KEY_FORMAT_3_5, &(new_ih.ih_key), TYPE_DIRENTRY);
+	}
+    
+	/* insert item into dest buffer */
+	leaf_insert_into_buf (dest_bi, (last_first == LAST_TO_FIRST) ? 0 : B_NR_ITEMS(dest), &new_ih, NULL, 0);
+    } else {
+	/* prepare space for entries */
+	leaf_paste_in_buffer (dest_bi, (last_first==FIRST_TO_LAST) ? (B_NR_ITEMS(dest) - 1) : 0, MAX_US_INT,
+			      DEH_SIZE * copy_count + copy_records_len, records, 0
+	    );
+    }
+  
+    item_num_in_dest = (last_first == FIRST_TO_LAST) ? (B_NR_ITEMS(dest)-1) : 0;
+    
+    leaf_paste_entries (dest_bi->bi_bh, item_num_in_dest,
+			(last_first == FIRST_TO_LAST) ? I_ENTRY_COUNT(B_N_PITEM_HEAD (dest, item_num_in_dest)) : 0,
+			copy_count, deh + from, records,
+			DEH_SIZE * copy_count + copy_records_len
+	);
+}
+
+
+/* Copy the first (if last_first == FIRST_TO_LAST) or last (last_first == LAST_TO_FIRST) item or 
+   part of it or nothing (see the return 0 below) from SOURCE to the end 
+   (if last_first) or beginning (!last_first) of the DEST */
+/* returns 1 if anything was copied, else 0 */
+static int leaf_copy_boundary_item (struct buffer_info * dest_bi, struct buffer_head * src, int last_first,
+				    int bytes_or_entries)
+{
+  struct buffer_head * dest = dest_bi->bi_bh;
+  int dest_nr_item, src_nr_item; /* number of items in the source and destination buffers */
+  struct item_head * ih;
+  struct item_head * dih;
+  
+  dest_nr_item = B_NR_ITEMS(dest);
+  
+  if ( last_first == FIRST_TO_LAST ) {
+    /* if ( DEST is empty or first item of SOURCE and last item of DEST are the items of different objects
+       or of different types ) then there is no need to treat this item differently from the other items
+       that we copy, so we return */
+    ih = B_N_PITEM_HEAD (src, 0);
+    dih = B_N_PITEM_HEAD (dest, dest_nr_item - 1);
+    if (!dest_nr_item || (!op_is_left_mergeable (&(ih->ih_key), src->b_size)))
+      /* there is nothing to merge */
+      return 0;
+      
+    RFALSE( ! ih_item_len(ih), "vs-10010: item can not have empty length");
+      
+    if ( is_direntry_le_ih (ih) ) {
+      if ( bytes_or_entries == -1 )
+	/* copy all entries to dest */
+	bytes_or_entries = ih_entry_count(ih);
+      leaf_copy_dir_entries (dest_bi, src, FIRST_TO_LAST, 0, 0, bytes_or_entries);
+      return 1;
+    }
+      
+    /* copy part of the body of the first item of SOURCE to the end of the body of the last item of the DEST
+       part defined by 'bytes_or_entries'; if bytes_or_entries == -1 copy whole body; don't create new item header
+       */
+    if ( bytes_or_entries == -1 )
+      bytes_or_entries = ih_item_len(ih);
+
+#ifdef CONFIG_REISERFS_CHECK
+    else {
+      if (bytes_or_entries == ih_item_len(ih) && is_indirect_le_ih(ih))
+	if (get_ih_free_space (ih))
+	  reiserfs_panic (0, "vs-10020: leaf_copy_boundary_item: "
+			  "last unformatted node must be filled entirely (%h)",
+			  ih);
+    }
+#endif
+      
+    /* merge first item (or its part) of src buffer with the last
+       item of dest buffer. Both are of the same file */
+    leaf_paste_in_buffer (dest_bi,
+			  dest_nr_item - 1, ih_item_len(dih), bytes_or_entries, B_I_PITEM(src,ih), 0
+			  );
+      
+    if (is_indirect_le_ih (dih)) {
+      RFALSE( get_ih_free_space (dih),
+              "vs-10030: merge to left: last unformatted node of non-last indirect item %h must have zerto free space",
+              ih);
+      if (bytes_or_entries == ih_item_len(ih))
+	set_ih_free_space (dih, get_ih_free_space (ih));
+    }
+    
+    return 1;
+  }
+  
+
+  /* copy boundary item to right (last_first == LAST_TO_FIRST) */
+
+  /* ( DEST is empty or last item of SOURCE and first item of DEST
+     are the items of different object or of different types )
+     */
+  src_nr_item = B_NR_ITEMS (src);
+  ih = B_N_PITEM_HEAD (src, src_nr_item - 1);
+  dih = B_N_PITEM_HEAD (dest, 0);
+
+  if (!dest_nr_item || !op_is_left_mergeable (&(dih->ih_key), src->b_size))
+    return 0;
+  
+  if ( is_direntry_le_ih (ih)) {
+    if ( bytes_or_entries == -1 )
+      /* bytes_or_entries = entries number in last item body of SOURCE */
+      bytes_or_entries = ih_entry_count(ih);
+    
+    leaf_copy_dir_entries (dest_bi, src, LAST_TO_FIRST, src_nr_item - 1, ih_entry_count(ih) - bytes_or_entries, bytes_or_entries);
+    return 1;
+  }
+
+  /* copy part of the body of the last item of SOURCE to the begin of the body of the first item of the DEST;
+     part defined by 'bytes_or_entries'; if byte_or_entriess == -1 copy whole body; change first item key of the DEST;
+     don't create new item header
+     */
+  
+  RFALSE( is_indirect_le_ih(ih) && get_ih_free_space (ih),
+          "vs-10040: merge to right: last unformatted node of non-last indirect item must be filled entirely (%h)",
+		    ih);
+
+  if ( bytes_or_entries == -1 ) {
+    /* bytes_or_entries = length of last item body of SOURCE */
+    bytes_or_entries = ih_item_len(ih);
+
+    RFALSE( le_ih_k_offset (dih) !=
+            le_ih_k_offset (ih) + op_bytes_number (ih, src->b_size),
+            "vs-10050: items %h and %h do not match", ih, dih);
+
+    /* change first item key of the DEST */
+    set_le_ih_k_offset (dih, le_ih_k_offset (ih));
+
+    /* item becomes non-mergeable */
+    /* or mergeable if left item was */
+    set_le_ih_k_type (dih, le_ih_k_type (ih));
+  } else {
+    /* merge to right only part of item */
+    RFALSE( ih_item_len(ih) <= bytes_or_entries,
+            "vs-10060: no so much bytes %lu (needed %lu)",
+            ( unsigned long )ih_item_len(ih), ( unsigned long )bytes_or_entries);
+    
+    /* change first item key of the DEST */
+    if ( is_direct_le_ih (dih) ) {
+      RFALSE( le_ih_k_offset (dih) <= (unsigned long)bytes_or_entries,
+	      "vs-10070: dih %h, bytes_or_entries(%d)", dih, bytes_or_entries);
+      set_le_ih_k_offset (dih, le_ih_k_offset (dih) - bytes_or_entries);
+    } else {
+      RFALSE( le_ih_k_offset (dih) <=
+              (bytes_or_entries / UNFM_P_SIZE) * dest->b_size,
+              "vs-10080: dih %h, bytes_or_entries(%d)",
+              dih, (bytes_or_entries/UNFM_P_SIZE)*dest->b_size);
+      set_le_ih_k_offset (dih, le_ih_k_offset (dih) - ((bytes_or_entries / UNFM_P_SIZE) * dest->b_size));
+    }
+  }
+  
+  leaf_paste_in_buffer (dest_bi, 0, 0, bytes_or_entries, B_I_PITEM(src,ih) + ih_item_len(ih) - bytes_or_entries, 0);
+  return 1;
+}
+
+
+/* copy cpy_mun items from buffer src to buffer dest
+ * last_first == FIRST_TO_LAST means, that we copy cpy_num  items beginning from first-th item in src to tail of dest
+ * last_first == LAST_TO_FIRST means, that we copy cpy_num  items beginning from first-th item in src to head of dest
+ */
+static void leaf_copy_items_entirely (struct buffer_info * dest_bi, struct buffer_head * src, int last_first,
+				      int first, int cpy_num)
+{
+    struct buffer_head * dest;
+    int nr, free_space;
+    int dest_before;
+    int last_loc, last_inserted_loc, location;
+    int i, j;
+    struct block_head * blkh;
+    struct item_head * ih;
+
+    RFALSE( last_first != LAST_TO_FIRST  && last_first != FIRST_TO_LAST,
+	    "vs-10090: bad last_first parameter %d", last_first);
+    RFALSE( B_NR_ITEMS (src) - first < cpy_num,
+	    "vs-10100: too few items in source %d, required %d from %d",
+	    B_NR_ITEMS(src), cpy_num, first);
+    RFALSE( cpy_num < 0, "vs-10110: can not copy negative amount of items");
+    RFALSE( ! dest_bi, "vs-10120: can not copy negative amount of items");
+
+    dest = dest_bi->bi_bh;
+
+    RFALSE( ! dest, "vs-10130: can not copy negative amount of items");
+
+    if (cpy_num == 0)
+	return;
+
+    blkh = B_BLK_HEAD(dest);
+    nr = blkh_nr_item( blkh );
+    free_space = blkh_free_space(blkh);
+  
+    /* we will insert items before 0-th or nr-th item in dest buffer. It depends of last_first parameter */
+    dest_before = (last_first == LAST_TO_FIRST) ? 0 : nr;
+
+    /* location of head of first new item */
+    ih = B_N_PITEM_HEAD (dest, dest_before);
+
+    RFALSE( blkh_free_space(blkh) < cpy_num * IH_SIZE,
+            "vs-10140: not enough free space for headers %d (needed %d)",
+            B_FREE_SPACE (dest), cpy_num * IH_SIZE);
+
+    /* prepare space for headers */
+    memmove (ih + cpy_num, ih, (nr-dest_before) * IH_SIZE);
+
+    /* copy item headers */
+    memcpy (ih, B_N_PITEM_HEAD (src, first), cpy_num * IH_SIZE);
+
+    free_space -= (IH_SIZE * cpy_num);
+    set_blkh_free_space( blkh, free_space );
+
+    /* location of unmovable item */
+    j = location = (dest_before == 0) ? dest->b_size : ih_location(ih-1);
+    for (i = dest_before; i < nr + cpy_num; i ++) {
+        location -= ih_item_len( ih + i - dest_before );
+        put_ih_location( ih + i - dest_before, location );
+    }
+
+    /* prepare space for items */
+    last_loc = ih_location( &(ih[nr+cpy_num-1-dest_before]) );
+    last_inserted_loc = ih_location( &(ih[cpy_num-1]) );
+
+    /* check free space */
+    RFALSE( free_space < j - last_inserted_loc,
+	    "vs-10150: not enough free space for items %d (needed %d)",
+            free_space, j - last_inserted_loc);
+
+    memmove (dest->b_data + last_loc,
+	     dest->b_data + last_loc + j - last_inserted_loc,
+	     last_inserted_loc - last_loc);
+
+    /* copy items */
+    memcpy (dest->b_data + last_inserted_loc, B_N_PITEM(src,(first + cpy_num - 1)),
+	    j - last_inserted_loc);
+
+    /* sizes, item number */
+    set_blkh_nr_item( blkh, nr + cpy_num );
+    set_blkh_free_space( blkh, free_space - (j - last_inserted_loc) );
+
+    do_balance_mark_leaf_dirty (dest_bi->tb, dest, 0);
+
+    if (dest_bi->bi_parent) {
+	struct disk_child *t_dc;
+	t_dc = B_N_CHILD (dest_bi->bi_parent, dest_bi->bi_position);
+	RFALSE( dc_block_number(t_dc) != dest->b_blocknr,
+	        "vs-10160: block number in bh does not match to field in disk_child structure %lu and %lu",
+                ( long unsigned ) dest->b_blocknr, 
+		( long unsigned ) dc_block_number(t_dc));
+	put_dc_size( t_dc, dc_size(t_dc) + (j - last_inserted_loc + IH_SIZE * cpy_num ) );
+    
+	do_balance_mark_internal_dirty (dest_bi->tb, dest_bi->bi_parent, 0);
+    }
+}
+
+
+/* This function splits the (liquid) item into two items (useful when
+   shifting part of an item into another node.) */
+static void leaf_item_bottle (struct buffer_info * dest_bi, struct buffer_head * src, int last_first,
+			      int item_num, int cpy_bytes)
+{
+    struct buffer_head * dest = dest_bi->bi_bh;
+    struct item_head * ih;
+  
+    RFALSE( cpy_bytes == -1, "vs-10170: bytes == - 1 means: do not split item");
+
+    if ( last_first == FIRST_TO_LAST ) {
+	/* if ( if item in position item_num in buffer SOURCE is directory item ) */
+	if (is_direntry_le_ih (ih = B_N_PITEM_HEAD(src,item_num)))
+	    leaf_copy_dir_entries (dest_bi, src, FIRST_TO_LAST, item_num, 0, cpy_bytes);
+	else {
+	    struct item_head n_ih;
+      
+	    /* copy part of the body of the item number 'item_num' of SOURCE to the end of the DEST 
+	       part defined by 'cpy_bytes'; create new item header; change old item_header (????);
+	       n_ih = new item_header;
+	    */
+	    memcpy (&n_ih, ih, IH_SIZE);
+	    put_ih_item_len( &n_ih, cpy_bytes );
+	    if (is_indirect_le_ih (ih)) {
+		RFALSE( cpy_bytes == ih_item_len(ih) && get_ih_free_space(ih),
+		        "vs-10180: when whole indirect item is bottle to left neighbor, it must have free_space==0 (not %lu)",
+                        ( long unsigned ) get_ih_free_space (ih));
+		set_ih_free_space (&n_ih, 0);
+	    }
+
+	    RFALSE( op_is_left_mergeable (&(ih->ih_key), src->b_size),
+		    "vs-10190: bad mergeability of item %h", ih);
+	    n_ih.ih_version = ih->ih_version; /* JDM Endian safe, both le */
+	    leaf_insert_into_buf (dest_bi, B_NR_ITEMS(dest), &n_ih, B_N_PITEM (src, item_num), 0);
+	}
+    } else {
+	/*  if ( if item in position item_num in buffer SOURCE is directory item ) */
+	if (is_direntry_le_ih(ih = B_N_PITEM_HEAD (src, item_num)))
+	    leaf_copy_dir_entries (dest_bi, src, LAST_TO_FIRST, item_num, I_ENTRY_COUNT(ih) - cpy_bytes, cpy_bytes);
+	else {
+	    struct item_head n_ih;
+      
+	    /* copy part of the body of the item number 'item_num' of SOURCE to the begin of the DEST 
+	       part defined by 'cpy_bytes'; create new item header;
+	       n_ih = new item_header;
+	    */
+	    memcpy (&n_ih, ih, SHORT_KEY_SIZE);
+
+	    n_ih.ih_version = ih->ih_version; /* JDM Endian safe, both le */
+
+	    if (is_direct_le_ih (ih)) {
+		set_le_ih_k_offset (&n_ih, le_ih_k_offset (ih) + ih_item_len(ih) - cpy_bytes);
+		set_le_ih_k_type (&n_ih, TYPE_DIRECT);
+		set_ih_free_space (&n_ih, MAX_US_INT);
+	    } else {
+		/* indirect item */
+		RFALSE( !cpy_bytes && get_ih_free_space (ih),
+		        "vs-10200: ih->ih_free_space must be 0 when indirect item will be appended");
+		set_le_ih_k_offset (&n_ih, le_ih_k_offset (ih) + (ih_item_len(ih) - cpy_bytes) / UNFM_P_SIZE * dest->b_size);
+		set_le_ih_k_type (&n_ih, TYPE_INDIRECT);
+		set_ih_free_space (&n_ih, get_ih_free_space (ih));
+	    }
+      
+	    /* set item length */
+	    put_ih_item_len( &n_ih, cpy_bytes );
+
+	    n_ih.ih_version = ih->ih_version; /* JDM Endian safe, both le */
+
+	    leaf_insert_into_buf (dest_bi, 0, &n_ih, B_N_PITEM(src,item_num) + ih_item_len(ih) - cpy_bytes, 0);
+	}
+    }
+}
+
+
+/* If cpy_bytes equals minus one than copy cpy_num whole items from SOURCE to DEST.
+   If cpy_bytes not equal to minus one than copy cpy_num-1 whole items from SOURCE to DEST.
+   From last item copy cpy_num bytes for regular item and cpy_num directory entries for
+   directory item. */
+static int leaf_copy_items (struct buffer_info * dest_bi, struct buffer_head * src, int last_first, int cpy_num,
+			    int cpy_bytes)
+{
+  struct buffer_head * dest;
+  int pos, i, src_nr_item, bytes;
+
+  dest = dest_bi->bi_bh;
+  RFALSE( !dest || !src, "vs-10210: !dest || !src");
+  RFALSE( last_first != FIRST_TO_LAST && last_first != LAST_TO_FIRST,
+	  "vs-10220:last_first != FIRST_TO_LAST && last_first != LAST_TO_FIRST");
+  RFALSE( B_NR_ITEMS(src) < cpy_num,
+	  "vs-10230: No enough items: %d, req. %d", B_NR_ITEMS(src), cpy_num);
+  RFALSE( cpy_num < 0,"vs-10240: cpy_num < 0 (%d)", cpy_num);
+
+ if ( cpy_num == 0 )
+   return 0;
+ 
+ if ( last_first == FIRST_TO_LAST ) {
+   /* copy items to left */
+   pos = 0;
+   if ( cpy_num == 1 )
+     bytes = cpy_bytes;
+   else
+     bytes = -1;
+   
+   /* copy the first item or it part or nothing to the end of the DEST (i = leaf_copy_boundary_item(DEST,SOURCE,0,bytes)) */
+   i = leaf_copy_boundary_item (dest_bi, src, FIRST_TO_LAST, bytes);
+   cpy_num -= i;
+   if ( cpy_num == 0 )
+     return i;
+   pos += i;
+   if ( cpy_bytes == -1 )
+     /* copy first cpy_num items starting from position 'pos' of SOURCE to end of DEST */
+     leaf_copy_items_entirely (dest_bi, src, FIRST_TO_LAST, pos, cpy_num);
+   else {
+     /* copy first cpy_num-1 items starting from position 'pos-1' of the SOURCE to the end of the DEST */
+     leaf_copy_items_entirely (dest_bi, src, FIRST_TO_LAST, pos, cpy_num-1);
+	     
+     /* copy part of the item which number is cpy_num+pos-1 to the end of the DEST */
+     leaf_item_bottle (dest_bi, src, FIRST_TO_LAST, cpy_num+pos-1, cpy_bytes);
+   } 
+ } else {
+   /* copy items to right */
+   src_nr_item = B_NR_ITEMS (src);
+   if ( cpy_num == 1 )
+     bytes = cpy_bytes;
+   else
+     bytes = -1;
+   
+   /* copy the last item or it part or nothing to the begin of the DEST (i = leaf_copy_boundary_item(DEST,SOURCE,1,bytes)); */
+   i = leaf_copy_boundary_item (dest_bi, src, LAST_TO_FIRST, bytes);
+   
+   cpy_num -= i;
+   if ( cpy_num == 0 )
+     return i;
+   
+   pos = src_nr_item - cpy_num - i;
+   if ( cpy_bytes == -1 ) {
+     /* starting from position 'pos' copy last cpy_num items of SOURCE to begin of DEST */
+     leaf_copy_items_entirely (dest_bi, src, LAST_TO_FIRST, pos, cpy_num);
+   } else {
+     /* copy last cpy_num-1 items starting from position 'pos+1' of the SOURCE to the begin of the DEST; */
+     leaf_copy_items_entirely (dest_bi, src, LAST_TO_FIRST, pos+1, cpy_num-1);
+
+     /* copy part of the item which number is pos to the begin of the DEST */
+     leaf_item_bottle (dest_bi, src, LAST_TO_FIRST, pos, cpy_bytes);
+   }
+ }
+ return i;
+}
+
+
+/* there are types of coping: from S[0] to L[0], from S[0] to R[0],
+   from R[0] to L[0]. for each of these we have to define parent and
+   positions of destination and source buffers */
+static void leaf_define_dest_src_infos (int shift_mode, struct tree_balance * tb, struct buffer_info * dest_bi,
+					struct buffer_info * src_bi, int * first_last,
+					struct buffer_head * Snew)
+{
+    memset (dest_bi, 0, sizeof (struct buffer_info));
+    memset (src_bi, 0, sizeof (struct buffer_info));
+
+    /* define dest, src, dest parent, dest position */
+    switch (shift_mode) {
+    case LEAF_FROM_S_TO_L:    /* it is used in leaf_shift_left */
+	src_bi->tb = tb;
+	src_bi->bi_bh = PATH_PLAST_BUFFER (tb->tb_path);
+	src_bi->bi_parent = PATH_H_PPARENT (tb->tb_path, 0);
+	src_bi->bi_position = PATH_H_B_ITEM_ORDER (tb->tb_path, 0);	/* src->b_item_order */
+	dest_bi->tb = tb;
+	dest_bi->bi_bh = tb->L[0];
+	dest_bi->bi_parent = tb->FL[0];
+	dest_bi->bi_position = get_left_neighbor_position (tb, 0);
+	*first_last = FIRST_TO_LAST;
+	break;
+
+    case LEAF_FROM_S_TO_R:  /* it is used in leaf_shift_right */
+	src_bi->tb = tb;
+	src_bi->bi_bh = PATH_PLAST_BUFFER (tb->tb_path);
+	src_bi->bi_parent = PATH_H_PPARENT (tb->tb_path, 0);
+	src_bi->bi_position = PATH_H_B_ITEM_ORDER (tb->tb_path, 0);
+	dest_bi->tb = tb;
+	dest_bi->bi_bh = tb->R[0];
+	dest_bi->bi_parent = tb->FR[0];
+	dest_bi->bi_position = get_right_neighbor_position (tb, 0);
+	*first_last = LAST_TO_FIRST;
+	break;
+
+    case LEAF_FROM_R_TO_L:  /* it is used in balance_leaf_when_delete */
+	src_bi->tb = tb;
+	src_bi->bi_bh = tb->R[0];
+	src_bi->bi_parent = tb->FR[0];
+	src_bi->bi_position = get_right_neighbor_position (tb, 0);
+	dest_bi->tb = tb;
+	dest_bi->bi_bh = tb->L[0];
+	dest_bi->bi_parent = tb->FL[0];
+	dest_bi->bi_position = get_left_neighbor_position (tb, 0);
+	*first_last = FIRST_TO_LAST;
+	break;
+    
+    case LEAF_FROM_L_TO_R:  /* it is used in balance_leaf_when_delete */
+	src_bi->tb = tb;
+	src_bi->bi_bh = tb->L[0];
+	src_bi->bi_parent = tb->FL[0];
+	src_bi->bi_position = get_left_neighbor_position (tb, 0);
+	dest_bi->tb = tb;
+	dest_bi->bi_bh = tb->R[0];
+	dest_bi->bi_parent = tb->FR[0];
+	dest_bi->bi_position = get_right_neighbor_position (tb, 0);
+	*first_last = LAST_TO_FIRST;
+	break;
+
+    case LEAF_FROM_S_TO_SNEW:
+	src_bi->tb = tb;
+	src_bi->bi_bh = PATH_PLAST_BUFFER (tb->tb_path);
+	src_bi->bi_parent = PATH_H_PPARENT (tb->tb_path, 0);
+	src_bi->bi_position = PATH_H_B_ITEM_ORDER (tb->tb_path, 0);
+	dest_bi->tb = tb;
+	dest_bi->bi_bh = Snew;
+	dest_bi->bi_parent = 0;
+	dest_bi->bi_position = 0;
+	*first_last = LAST_TO_FIRST;
+	break;
+    
+    default:
+	reiserfs_panic (0, "vs-10250: leaf_define_dest_src_infos: shift type is unknown (%d)", shift_mode);
+    }
+    RFALSE( src_bi->bi_bh == 0 || dest_bi->bi_bh == 0,
+	    "vs-10260: mode==%d, source (%p) or dest (%p) buffer is initialized incorrectly",
+	    shift_mode, src_bi->bi_bh, dest_bi->bi_bh);
+}
+
+
+
+
+/* copy mov_num items and mov_bytes of the (mov_num-1)th item to
+   neighbor. Delete them from source */
+int leaf_move_items (int shift_mode, struct tree_balance * tb, int mov_num, int mov_bytes, struct buffer_head * Snew)
+{
+  int ret_value;
+  struct buffer_info dest_bi, src_bi;
+  int first_last;
+
+  leaf_define_dest_src_infos (shift_mode, tb, &dest_bi, &src_bi, &first_last, Snew);
+
+  ret_value = leaf_copy_items (&dest_bi, src_bi.bi_bh, first_last, mov_num, mov_bytes);
+
+  leaf_delete_items (&src_bi, first_last, (first_last == FIRST_TO_LAST) ? 0 : (B_NR_ITEMS(src_bi.bi_bh) - mov_num), mov_num, mov_bytes);
+
+  
+  return ret_value;
+}
+
+
+/* Shift shift_num items (and shift_bytes of last shifted item if shift_bytes != -1)
+   from S[0] to L[0] and replace the delimiting key */
+int leaf_shift_left (struct tree_balance * tb, int shift_num, int shift_bytes)
+{
+  struct buffer_head * S0 = PATH_PLAST_BUFFER (tb->tb_path);
+  int i;
+
+  /* move shift_num (and shift_bytes bytes) items from S[0] to left neighbor L[0] */
+  i = leaf_move_items (LEAF_FROM_S_TO_L, tb, shift_num, shift_bytes, 0);
+
+  if ( shift_num ) {
+    if (B_NR_ITEMS (S0) == 0) { /* number of items in S[0] == 0 */
+
+      RFALSE( shift_bytes != -1,
+	      "vs-10270: S0 is empty now, but shift_bytes != -1 (%d)", 
+	      shift_bytes);
+#ifdef CONFIG_REISERFS_CHECK
+      if (tb->tb_mode == M_PASTE || tb->tb_mode == M_INSERT) {
+	print_cur_tb ("vs-10275");
+	reiserfs_panic (tb->tb_sb, "vs-10275: leaf_shift_left: balance condition corrupted (%c)", tb->tb_mode);
+      }
+#endif
+
+      if (PATH_H_POSITION (tb->tb_path, 1) == 0)
+	replace_key (tb, tb->CFL[0], tb->lkey[0], PATH_H_PPARENT (tb->tb_path, 0), 0);
+
+    } else {     
+      /* replace lkey in CFL[0] by 0-th key from S[0]; */
+      replace_key (tb, tb->CFL[0], tb->lkey[0], S0, 0);
+      
+      RFALSE( (shift_bytes != -1 &&
+              !(is_direntry_le_ih (B_N_PITEM_HEAD (S0, 0))
+                && !I_ENTRY_COUNT (B_N_PITEM_HEAD (S0, 0)))) &&
+	      (!op_is_left_mergeable (B_N_PKEY (S0, 0), S0->b_size)),
+	      "vs-10280: item must be mergeable");
+    }
+  }
+  
+  return i;
+}
+
+
+
+
+
+/* CLEANING STOPPED HERE */
+
+
+
+
+/* Shift shift_num (shift_bytes) items from S[0] to the right neighbor, and replace the delimiting key */
+int	leaf_shift_right(
+		struct tree_balance * tb, 
+		int shift_num,
+		int shift_bytes
+	)
+{
+  //  struct buffer_head * S0 = PATH_PLAST_BUFFER (tb->tb_path);
+  int ret_value;
+
+  /* move shift_num (and shift_bytes) items from S[0] to right neighbor R[0] */
+  ret_value = leaf_move_items (LEAF_FROM_S_TO_R, tb, shift_num, shift_bytes, 0);
+
+  /* replace rkey in CFR[0] by the 0-th key from R[0] */
+  if (shift_num) {
+    replace_key (tb, tb->CFR[0], tb->rkey[0], tb->R[0], 0);
+
+  }
+
+  return ret_value;
+}
+
+
+
+static void leaf_delete_items_entirely (struct buffer_info * bi,
+					int first, int del_num);
+/*  If del_bytes == -1, starting from position 'first' delete del_num items in whole in buffer CUR.
+    If not. 
+    If last_first == 0. Starting from position 'first' delete del_num-1 items in whole. Delete part of body of
+    the first item. Part defined by del_bytes. Don't delete first item header
+    If last_first == 1. Starting from position 'first+1' delete del_num-1 items in whole. Delete part of body of
+    the last item . Part defined by del_bytes. Don't delete last item header.
+*/
+void leaf_delete_items (struct buffer_info * cur_bi, int last_first, 
+			int first, int del_num, int del_bytes)
+{
+    struct buffer_head * bh;
+    int item_amount = B_NR_ITEMS (bh = cur_bi->bi_bh);
+
+    RFALSE( !bh, "10155: bh is not defined");
+    RFALSE( del_num < 0, "10160: del_num can not be < 0. del_num==%d", del_num);
+    RFALSE( first < 0 || first + del_num > item_amount,
+	    "10165: invalid number of first item to be deleted (%d) or "
+	    "no so much items (%d) to delete (only %d)", 
+	    first, first + del_num, item_amount);
+
+    if ( del_num == 0 )
+	return;
+
+    if ( first == 0 && del_num == item_amount && del_bytes == -1 ) {
+	make_empty_node (cur_bi);
+	do_balance_mark_leaf_dirty (cur_bi->tb, bh, 0);
+	return;
+    }
+
+    if ( del_bytes == -1 )
+	/* delete del_num items beginning from item in position first */
+	leaf_delete_items_entirely (cur_bi, first, del_num);
+    else {
+	if ( last_first == FIRST_TO_LAST ) {
+	    /* delete del_num-1 items beginning from item in position first  */
+	    leaf_delete_items_entirely (cur_bi, first, del_num-1);
+
+	    /* delete the part of the first item of the bh
+	       do not delete item header
+	    */
+	    leaf_cut_from_buffer (cur_bi, 0, 0, del_bytes);
+	} else  {
+	    struct item_head * ih;
+	    int len;
+
+	    /* delete del_num-1 items beginning from item in position first+1  */
+	    leaf_delete_items_entirely (cur_bi, first+1, del_num-1);
+
+	    if (is_direntry_le_ih (ih = B_N_PITEM_HEAD(bh, B_NR_ITEMS(bh)-1))) 	/* the last item is directory  */
+	        /* len = numbers of directory entries in this item */
+		len = ih_entry_count(ih);
+	    else
+	        /* len = body len of item */
+		len = ih_item_len(ih);
+
+	    /* delete the part of the last item of the bh 
+	       do not delete item header
+	    */
+	    leaf_cut_from_buffer (cur_bi, B_NR_ITEMS(bh)-1, len - del_bytes, del_bytes);
+	}
+    }
+}
+
+
+/* insert item into the leaf node in position before */
+void leaf_insert_into_buf (struct buffer_info * bi, int before,
+			   struct item_head * inserted_item_ih,
+			   const char * inserted_item_body,
+			   int zeros_number)
+{
+    struct buffer_head * bh = bi->bi_bh;
+    int nr, free_space;
+    struct block_head * blkh;
+    struct item_head * ih;
+    int i;
+    int last_loc, unmoved_loc;
+    char * to;
+
+
+    blkh = B_BLK_HEAD(bh);
+    nr = blkh_nr_item(blkh);
+    free_space = blkh_free_space( blkh );
+
+    /* check free space */
+    RFALSE( free_space < ih_item_len(inserted_item_ih) + IH_SIZE,
+            "vs-10170: not enough free space in block %z, new item %h",
+            bh, inserted_item_ih);
+    RFALSE( zeros_number > ih_item_len(inserted_item_ih),
+	    "vs-10172: zero number == %d, item length == %d",
+            zeros_number, ih_item_len(inserted_item_ih));
+
+
+    /* get item new item must be inserted before */
+    ih = B_N_PITEM_HEAD (bh, before);
+
+    /* prepare space for the body of new item */
+    last_loc = nr ? ih_location( &(ih[nr - before - 1]) ) : bh->b_size;
+    unmoved_loc = before ? ih_location( ih-1 ) : bh->b_size;
+
+
+    memmove (bh->b_data + last_loc - ih_item_len(inserted_item_ih), 
+	     bh->b_data + last_loc, unmoved_loc - last_loc);
+
+    to = bh->b_data + unmoved_loc - ih_item_len(inserted_item_ih);
+    memset (to, 0, zeros_number);
+    to += zeros_number;
+
+    /* copy body to prepared space */
+    if (inserted_item_body)
+	memmove (to, inserted_item_body, ih_item_len(inserted_item_ih) - zeros_number);
+    else
+	memset(to, '\0', ih_item_len(inserted_item_ih) - zeros_number);
+  
+    /* insert item header */
+    memmove (ih + 1, ih, IH_SIZE * (nr - before));
+    memmove (ih, inserted_item_ih, IH_SIZE);
+  
+    /* change locations */
+    for (i = before; i < nr + 1; i ++)
+    {
+        unmoved_loc -= ih_item_len( &(ih[i-before]));
+	put_ih_location( &(ih[i-before]), unmoved_loc );
+    }
+  
+    /* sizes, free space, item number */
+    set_blkh_nr_item( blkh, blkh_nr_item(blkh) + 1 );
+    set_blkh_free_space( blkh,
+                    free_space - (IH_SIZE + ih_item_len(inserted_item_ih ) ) );
+    do_balance_mark_leaf_dirty (bi->tb, bh, 1);
+
+    if (bi->bi_parent) { 
+	struct disk_child *t_dc;
+	t_dc = B_N_CHILD (bi->bi_parent, bi->bi_position);
+	put_dc_size( t_dc, dc_size(t_dc) + (IH_SIZE + ih_item_len(inserted_item_ih)));
+	do_balance_mark_internal_dirty (bi->tb, bi->bi_parent, 0);
+    }
+}
+
+
+/* paste paste_size bytes to affected_item_num-th item. 
+   When item is a directory, this only prepare space for new entries */
+void leaf_paste_in_buffer (struct buffer_info * bi, int affected_item_num,
+			   int pos_in_item, int paste_size,
+			   const char * body,
+			   int zeros_number)
+{
+    struct buffer_head * bh = bi->bi_bh;
+    int nr, free_space;
+    struct block_head * blkh;
+    struct item_head * ih;
+    int i;
+    int last_loc, unmoved_loc;
+
+    blkh = B_BLK_HEAD(bh);
+    nr = blkh_nr_item(blkh);
+    free_space = blkh_free_space(blkh);
+
+
+    /* check free space */
+    RFALSE( free_space < paste_size,
+            "vs-10175: not enough free space: needed %d, available %d",
+            paste_size, free_space);
+
+#ifdef CONFIG_REISERFS_CHECK
+    if (zeros_number > paste_size) {
+	print_cur_tb ("10177");
+	reiserfs_panic ( 0, "vs-10177: leaf_paste_in_buffer: ero number == %d, paste_size == %d",
+                         zeros_number, paste_size);
+    }
+#endif /* CONFIG_REISERFS_CHECK */
+
+
+    /* item to be appended */
+    ih = B_N_PITEM_HEAD(bh, affected_item_num);
+
+    last_loc = ih_location( &(ih[nr - affected_item_num - 1]) );
+    unmoved_loc = affected_item_num ? ih_location( ih-1 ) : bh->b_size;
+
+    /* prepare space */
+    memmove (bh->b_data + last_loc - paste_size, bh->b_data + last_loc,
+	     unmoved_loc - last_loc);
+
+
+    /* change locations */
+    for (i = affected_item_num; i < nr; i ++)
+	put_ih_location( &(ih[i-affected_item_num]),
+                    ih_location( &(ih[i-affected_item_num])) - paste_size );
+
+    if ( body ) {
+	if (!is_direntry_le_ih (ih)) {
+	    if (!pos_in_item) {
+		/* shift data to right */
+		memmove (bh->b_data + ih_location(ih) + paste_size, 
+			 bh->b_data + ih_location(ih), ih_item_len(ih));
+		/* paste data in the head of item */
+		memset (bh->b_data + ih_location(ih), 0, zeros_number);
+		memcpy (bh->b_data + ih_location(ih) + zeros_number, body, paste_size - zeros_number);
+	    } else {
+		memset (bh->b_data + unmoved_loc - paste_size, 0, zeros_number);
+		memcpy (bh->b_data + unmoved_loc - paste_size + zeros_number, body, paste_size - zeros_number);
+	    }
+	}
+    }
+    else
+	memset(bh->b_data + unmoved_loc - paste_size, '\0', paste_size);
+
+    put_ih_item_len( ih, ih_item_len(ih) + paste_size );
+
+    /* change free space */
+    set_blkh_free_space( blkh, free_space - paste_size );
+
+    do_balance_mark_leaf_dirty (bi->tb, bh, 0);
+
+    if (bi->bi_parent) { 
+	struct disk_child *t_dc = B_N_CHILD (bi->bi_parent, bi->bi_position);
+	put_dc_size( t_dc, dc_size(t_dc) + paste_size );
+	do_balance_mark_internal_dirty (bi->tb, bi->bi_parent, 0);
+    }
+}
+
+
+/* cuts DEL_COUNT entries beginning from FROM-th entry. Directory item
+   does not have free space, so it moves DEHs and remaining records as
+   necessary. Return value is size of removed part of directory item
+   in bytes. */
+static int	leaf_cut_entries (
+				struct buffer_head * bh,
+				struct item_head * ih, 
+				int from, 
+				int del_count
+			)
+{
+  char * item;
+  struct reiserfs_de_head * deh;
+  int prev_record_offset;	/* offset of record, that is (from-1)th */
+  char * prev_record;		/* */
+  int cut_records_len;		/* length of all removed records */
+  int i;
+
+
+  /* make sure, that item is directory and there are enough entries to
+     remove */
+  RFALSE( !is_direntry_le_ih (ih), "10180: item is not directory item");
+  RFALSE( I_ENTRY_COUNT(ih) < from + del_count,
+	  "10185: item contains not enough entries: entry_cout = %d, from = %d, to delete = %d",
+	  I_ENTRY_COUNT(ih), from, del_count);
+
+  if (del_count == 0)
+    return 0;
+
+  /* first byte of item */
+  item = bh->b_data + ih_location(ih);
+
+  /* entry head array */
+  deh = B_I_DEH (bh, ih);
+
+  /* first byte of remaining entries, those are BEFORE cut entries
+     (prev_record) and length of all removed records (cut_records_len) */
+  prev_record_offset = (from ? deh_location( &(deh[from - 1])) : ih_item_len(ih));
+  cut_records_len = prev_record_offset/*from_record*/ -
+                                deh_location( &(deh[from + del_count - 1]));
+  prev_record = item + prev_record_offset;
+
+
+  /* adjust locations of remaining entries */
+  for (i = I_ENTRY_COUNT(ih) - 1; i > from + del_count - 1; i --)
+    put_deh_location( &(deh[i]),
+                        deh_location( &deh[i] ) - (DEH_SIZE * del_count ) );
+
+  for (i = 0; i < from; i ++)
+    put_deh_location( &(deh[i]),
+        deh_location( &deh[i] ) - (DEH_SIZE * del_count + cut_records_len) );
+
+  put_ih_entry_count( ih, ih_entry_count(ih) - del_count );
+
+  /* shift entry head array and entries those are AFTER removed entries */
+  memmove ((char *)(deh + from),
+	   deh + from + del_count, 
+	   prev_record - cut_records_len - (char *)(deh + from + del_count));
+  
+  /* shift records, those are BEFORE removed entries */
+  memmove (prev_record - cut_records_len - DEH_SIZE * del_count,
+	   prev_record, item + ih_item_len(ih) - prev_record);
+
+  return DEH_SIZE * del_count + cut_records_len;
+}
+
+
+/*  when cut item is part of regular file
+        pos_in_item - first byte that must be cut
+        cut_size - number of bytes to be cut beginning from pos_in_item
+ 
+   when cut item is part of directory
+        pos_in_item - number of first deleted entry
+        cut_size - count of deleted entries
+    */
+void leaf_cut_from_buffer (struct buffer_info * bi, int cut_item_num,
+			   int pos_in_item, int cut_size)
+{
+    int nr;
+    struct buffer_head * bh = bi->bi_bh;
+    struct block_head * blkh;
+    struct item_head * ih;
+    int last_loc, unmoved_loc;
+    int i;
+
+    blkh = B_BLK_HEAD(bh);
+    nr = blkh_nr_item(blkh);
+
+    /* item head of truncated item */
+    ih = B_N_PITEM_HEAD (bh, cut_item_num);
+
+    if (is_direntry_le_ih (ih)) {
+        /* first cut entry ()*/
+        cut_size = leaf_cut_entries (bh, ih, pos_in_item, cut_size);
+        if (pos_in_item == 0) {
+	        /* change key */
+            RFALSE( cut_item_num,
+                    "when 0-th enrty of item is cut, that item must be first in the node, not %d-th", cut_item_num);
+            /* change item key by key of first entry in the item */
+	    set_le_ih_k_offset (ih, deh_offset(B_I_DEH (bh, ih)));
+            /*memcpy (&ih->ih_key.k_offset, &(B_I_DEH (bh, ih)->deh_offset), SHORT_KEY_SIZE);*/
+	    }
+    } else {
+        /* item is direct or indirect */
+        RFALSE( is_statdata_le_ih (ih), "10195: item is stat data");
+        RFALSE( pos_in_item && pos_in_item + cut_size != ih_item_len(ih),
+                "10200: invalid offset (%lu) or trunc_size (%lu) or ih_item_len (%lu)",
+                ( long unsigned ) pos_in_item, ( long unsigned ) cut_size, 
+		( long unsigned ) ih_item_len (ih));
+
+        /* shift item body to left if cut is from the head of item */
+        if (pos_in_item == 0) {
+            memmove( bh->b_data + ih_location(ih),
+		     bh->b_data + ih_location(ih) + cut_size,
+		     ih_item_len(ih) - cut_size);
+	    
+            /* change key of item */
+            if (is_direct_le_ih (ih))
+		set_le_ih_k_offset (ih, le_ih_k_offset (ih) + cut_size);
+            else {
+		set_le_ih_k_offset (ih, le_ih_k_offset (ih) + (cut_size / UNFM_P_SIZE) * bh->b_size);
+                RFALSE( ih_item_len(ih) == cut_size && get_ih_free_space (ih),
+                        "10205: invalid ih_free_space (%h)", ih);
+	        }
+	    }
+    }
+  
+
+    /* location of the last item */
+    last_loc = ih_location( &(ih[nr - cut_item_num - 1]) );
+
+    /* location of the item, which is remaining at the same place */
+    unmoved_loc = cut_item_num ? ih_location(ih-1) : bh->b_size;
+
+
+    /* shift */
+    memmove (bh->b_data + last_loc + cut_size, bh->b_data + last_loc,
+	       unmoved_loc - last_loc - cut_size);
+
+    /* change item length */
+    put_ih_item_len( ih, ih_item_len(ih) - cut_size );
+  
+    if (is_indirect_le_ih (ih)) {
+        if (pos_in_item)
+            set_ih_free_space (ih, 0);
+    }
+
+    /* change locations */
+    for (i = cut_item_num; i < nr; i ++)
+    put_ih_location( &(ih[i-cut_item_num]), ih_location( &ih[i-cut_item_num]) + cut_size );
+
+    /* size, free space */
+    set_blkh_free_space( blkh, blkh_free_space(blkh) + cut_size );
+
+    do_balance_mark_leaf_dirty (bi->tb, bh, 0);
+    
+    if (bi->bi_parent) { 
+      struct disk_child *t_dc;
+      t_dc = B_N_CHILD (bi->bi_parent, bi->bi_position);
+      put_dc_size( t_dc, dc_size(t_dc) - cut_size );
+      do_balance_mark_internal_dirty (bi->tb, bi->bi_parent, 0);
+    }
+}
+
+
+/* delete del_num items from buffer starting from the first'th item */
+static void leaf_delete_items_entirely (struct buffer_info * bi,
+					int first, int del_num)
+{
+    struct buffer_head * bh = bi->bi_bh;
+    int nr;
+    int i, j;
+    int last_loc, last_removed_loc;
+    struct block_head * blkh;
+    struct item_head * ih;
+
+  RFALSE( bh == NULL, "10210: buffer is 0");
+  RFALSE( del_num < 0, "10215: del_num less than 0 (%d)", del_num);
+
+  if (del_num == 0)
+    return;
+
+  blkh = B_BLK_HEAD(bh);
+  nr = blkh_nr_item(blkh);
+
+  RFALSE( first < 0 || first + del_num > nr,
+          "10220: first=%d, number=%d, there is %d items", first, del_num, nr);
+
+  if (first == 0 && del_num == nr) {
+    /* this does not work */
+    make_empty_node (bi);
+    
+    do_balance_mark_leaf_dirty (bi->tb, bh, 0);
+    return;
+  }
+
+  ih = B_N_PITEM_HEAD (bh, first);
+  
+  /* location of unmovable item */
+  j = (first == 0) ? bh->b_size : ih_location(ih-1);
+      
+  /* delete items */
+  last_loc = ih_location( &(ih[nr-1-first]) );
+  last_removed_loc = ih_location( &(ih[del_num-1]) );
+
+  memmove (bh->b_data + last_loc + j - last_removed_loc,
+	   bh->b_data + last_loc, last_removed_loc - last_loc);
+  
+  /* delete item headers */
+  memmove (ih, ih + del_num, (nr - first - del_num) * IH_SIZE);
+  
+  /* change item location */
+  for (i = first; i < nr - del_num; i ++)
+    put_ih_location( &(ih[i-first]), ih_location( &(ih[i-first]) ) + (j - last_removed_loc) );
+
+  /* sizes, item number */
+  set_blkh_nr_item( blkh, blkh_nr_item(blkh) - del_num );
+  set_blkh_free_space( blkh, blkh_free_space(blkh) + (j - last_removed_loc + IH_SIZE * del_num) );
+
+  do_balance_mark_leaf_dirty (bi->tb, bh, 0);
+  
+  if (bi->bi_parent) {
+    struct disk_child *t_dc = B_N_CHILD (bi->bi_parent, bi->bi_position);
+    put_dc_size( t_dc, dc_size(t_dc) -
+				(j - last_removed_loc + IH_SIZE * del_num));
+    do_balance_mark_internal_dirty (bi->tb, bi->bi_parent, 0);
+  }
+}
+
+
+
+
+
+/* paste new_entry_count entries (new_dehs, records) into position before to item_num-th item */
+void    leaf_paste_entries (
+			struct buffer_head * bh,
+			int item_num,
+			int before,
+			int new_entry_count,
+			struct reiserfs_de_head * new_dehs,
+			const char * records,
+			int paste_size
+		)
+{
+    struct item_head * ih;
+    char * item;
+    struct reiserfs_de_head * deh;
+    char * insert_point;
+    int i, old_entry_num;
+
+    if (new_entry_count == 0)
+        return;
+
+    ih = B_N_PITEM_HEAD(bh, item_num);
+
+  /* make sure, that item is directory, and there are enough records in it */
+  RFALSE( !is_direntry_le_ih (ih), "10225: item is not directory item");
+  RFALSE( I_ENTRY_COUNT (ih) < before,
+	  "10230: there are no entry we paste entries before. entry_count = %d, before = %d",
+	  I_ENTRY_COUNT (ih), before);
+
+
+  /* first byte of dest item */
+  item = bh->b_data + ih_location(ih);
+
+  /* entry head array */
+  deh = B_I_DEH (bh, ih);
+
+  /* new records will be pasted at this point */
+  insert_point = item + (before ? deh_location( &(deh[before - 1])) : (ih_item_len(ih) - paste_size));
+
+  /* adjust locations of records that will be AFTER new records */
+  for (i = I_ENTRY_COUNT(ih) - 1; i >= before; i --)
+    put_deh_location( &(deh[i]),
+                deh_location(&(deh[i])) + (DEH_SIZE * new_entry_count )); 
+
+  /* adjust locations of records that will be BEFORE new records */
+  for (i = 0; i < before; i ++)
+    put_deh_location( &(deh[i]), deh_location(&(deh[i])) + paste_size );
+
+  old_entry_num = I_ENTRY_COUNT(ih);
+  put_ih_entry_count( ih, ih_entry_count(ih) + new_entry_count );
+
+  /* prepare space for pasted records */
+  memmove (insert_point + paste_size, insert_point, item + (ih_item_len(ih) - paste_size) - insert_point);
+
+  /* copy new records */
+  memcpy (insert_point + DEH_SIZE * new_entry_count, records,
+		   paste_size - DEH_SIZE * new_entry_count);
+  
+  /* prepare space for new entry heads */
+  deh += before;
+  memmove ((char *)(deh + new_entry_count), deh, insert_point - (char *)deh);
+
+  /* copy new entry heads */
+  deh = (struct reiserfs_de_head *)((char *)deh);
+  memcpy (deh, new_dehs, DEH_SIZE * new_entry_count);
+
+  /* set locations of new records */
+  for (i = 0; i < new_entry_count; i ++)
+  {
+    put_deh_location( &(deh[i]),
+        deh_location( &(deh[i] )) +
+        (- deh_location( &(new_dehs[new_entry_count - 1])) +
+        insert_point + DEH_SIZE * new_entry_count - item));
+  }
+
+
+  /* change item key if neccessary (when we paste before 0-th entry */
+  if (!before)
+    {
+	set_le_ih_k_offset (ih, deh_offset(new_dehs));
+/*      memcpy (&ih->ih_key.k_offset, 
+		       &new_dehs->deh_offset, SHORT_KEY_SIZE);*/
+    }
+
+#ifdef CONFIG_REISERFS_CHECK
+  {
+    int prev, next;
+    /* check record locations */
+    deh = B_I_DEH (bh, ih);
+    for (i = 0; i < I_ENTRY_COUNT(ih); i ++) {
+      next = (i < I_ENTRY_COUNT(ih) - 1) ? deh_location( &(deh[i + 1])) : 0;
+      prev = (i != 0) ? deh_location( &(deh[i - 1]) ) : 0;
+      
+      if (prev && prev <= deh_location( &(deh[i])))
+	reiserfs_warning (NULL, "vs-10240: leaf_paste_entries: directory item (%h) corrupted (prev %a, cur(%d) %a)\n", 
+			  ih, deh + i - 1, i, deh + i);
+      if (next && next >= deh_location( &(deh[i])))
+	reiserfs_warning (NULL, "vs-10250: leaf_paste_entries: directory item (%h) corrupted (cur(%d) %a, next %a)\n",
+			  ih, i, deh + i, deh + i + 1);
+    }
+  }
+#endif
+
+}
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
new file mode 100644
index 00000000000000..c7e5668996f57f
--- /dev/null
+++ b/fs/reiserfs/namei.c
@@ -0,0 +1,1281 @@
+/*
+ * Copyright 2000-2002 by Hans Reiser, licensing governed by reiserfs/README
+ */
+
+#include <linux/config.h>
+#include <linux/sched.h>
+#include <linux/bitops.h>
+#include <linux/reiserfs_fs.h>
+#include <linux/smp_lock.h>
+
+#define INC_DIR_INODE_NLINK(i) if (i->i_nlink != 1) { i->i_nlink++; if (i->i_nlink >= REISERFS_LINK_MAX) i->i_nlink=1; }
+#define DEC_DIR_INODE_NLINK(i) if (i->i_nlink != 1) i->i_nlink--;
+
+// directory item contains array of entry headers. This performs
+// binary search through that array
+static int bin_search_in_dir_item (struct reiserfs_dir_entry * de, loff_t off)
+{
+    struct item_head * ih = de->de_ih;
+    struct reiserfs_de_head * deh = de->de_deh;
+    int rbound, lbound, j;
+
+    lbound = 0;
+    rbound = I_ENTRY_COUNT (ih) - 1;
+
+    for (j = (rbound + lbound) / 2; lbound <= rbound; j = (rbound + lbound) / 2) {
+	if (off < deh_offset (deh + j)) {
+	    rbound = j - 1;
+	    continue;
+	}
+	if (off > deh_offset (deh + j)) {
+	    lbound = j + 1;
+	    continue;
+	}
+	// this is not name found, but matched third key component
+	de->de_entry_num = j;
+	return NAME_FOUND;
+    }
+
+    de->de_entry_num = lbound;
+    return NAME_NOT_FOUND;
+}
+
+
+// comment?  maybe something like set de to point to what the path points to?
+static inline void set_de_item_location (struct reiserfs_dir_entry * de, struct path * path)
+{
+    de->de_bh = get_last_bh (path);
+    de->de_ih = get_ih (path);
+    de->de_deh = B_I_DEH (de->de_bh, de->de_ih);
+    de->de_item_num = PATH_LAST_POSITION (path);
+} 
+
+
+// de_bh, de_ih, de_deh (points to first element of array), de_item_num is set
+inline void set_de_name_and_namelen (struct reiserfs_dir_entry * de)
+{
+    struct reiserfs_de_head * deh = de->de_deh + de->de_entry_num;
+
+    if (de->de_entry_num >= ih_entry_count (de->de_ih))
+	BUG ();
+
+    de->de_entrylen = entry_length (de->de_bh, de->de_ih, de->de_entry_num);
+    de->de_namelen = de->de_entrylen - (de_with_sd (deh) ? SD_SIZE : 0);
+    de->de_name = B_I_PITEM (de->de_bh, de->de_ih) + deh_location(deh);
+    if (de->de_name[de->de_namelen - 1] == 0)
+	de->de_namelen = strlen (de->de_name);
+}
+
+
+// what entry points to
+static inline void set_de_object_key (struct reiserfs_dir_entry * de)
+{
+    if (de->de_entry_num >= ih_entry_count (de->de_ih))
+	BUG ();
+    de->de_dir_id = deh_dir_id( &(de->de_deh[de->de_entry_num]));
+    de->de_objectid = deh_objectid( &(de->de_deh[de->de_entry_num]));
+}
+
+
+static inline void store_de_entry_key (struct reiserfs_dir_entry * de)
+{
+    struct reiserfs_de_head * deh = de->de_deh + de->de_entry_num;
+
+    if (de->de_entry_num >= ih_entry_count (de->de_ih))
+	BUG ();
+
+    /* store key of the found entry */
+    de->de_entry_key.version = KEY_FORMAT_3_5;
+    de->de_entry_key.on_disk_key.k_dir_id = le32_to_cpu (de->de_ih->ih_key.k_dir_id);
+    de->de_entry_key.on_disk_key.k_objectid = le32_to_cpu (de->de_ih->ih_key.k_objectid);
+    set_cpu_key_k_offset (&(de->de_entry_key), deh_offset (deh));
+    set_cpu_key_k_type (&(de->de_entry_key), TYPE_DIRENTRY);
+}
+
+
+/* We assign a key to each directory item, and place multiple entries
+in a single directory item.  A directory item has a key equal to the
+key of the first directory entry in it.
+
+This function first calls search_by_key, then, if item whose first
+entry matches is not found it looks for the entry inside directory
+item found by search_by_key. Fills the path to the entry, and to the
+entry position in the item 
+
+*/
+
+/* The function is NOT SCHEDULE-SAFE! */
+int search_by_entry_key (struct super_block * sb, const struct cpu_key * key,
+			 struct path * path, struct reiserfs_dir_entry * de)
+{
+    int retval;
+
+    retval = search_item (sb, key, path);
+    switch (retval) {
+    case ITEM_NOT_FOUND:
+	if (!PATH_LAST_POSITION (path)) {
+	    reiserfs_warning (sb, "vs-7000: search_by_entry_key: search_by_key returned item position == 0\n");
+	    pathrelse(path) ;
+	    return IO_ERROR ;
+	}
+	PATH_LAST_POSITION (path) --;
+
+    case ITEM_FOUND:
+	break;
+
+    case IO_ERROR:
+	return retval;
+
+    default:
+	pathrelse (path);
+	reiserfs_warning (sb, "vs-7002: search_by_entry_key: no path to here\n ");
+	return IO_ERROR;
+    }
+
+    set_de_item_location (de, path);
+
+#ifdef CONFIG_REISERFS_CHECK
+    if (!is_direntry_le_ih (de->de_ih) || 
+	COMP_SHORT_KEYS (&(de->de_ih->ih_key), key)) {
+	print_block (de->de_bh, 0, -1, -1);
+	reiserfs_panic (sb, "vs-7005: search_by_entry_key: found item %h is not directory item or "
+                        "does not belong to the same directory as key %K", de->de_ih, key);
+    }
+#endif /* CONFIG_REISERFS_CHECK */
+
+    /* binary search in directory item by third componen t of the
+       key. sets de->de_entry_num of de */
+    retval = bin_search_in_dir_item (de, cpu_key_k_offset (key));
+    path->pos_in_item = de->de_entry_num;
+    if (retval != NAME_NOT_FOUND) {
+	// ugly, but rename needs de_bh, de_deh, de_name, de_namelen, de_objectid set
+	set_de_name_and_namelen (de);
+	set_de_object_key (de);
+    }
+    return retval;
+}
+
+
+
+/* Keyed 32-bit hash function using TEA in a Davis-Meyer function */
+
+/* The third component is hashed, and you can choose from more than
+   one hash function.  Per directory hashes are not yet implemented
+   but are thought about. This function should be moved to hashes.c
+   Jedi, please do so.  -Hans */
+
+static __u32 get_third_component (struct super_block * s, 
+				  const char * name, int len)
+{
+    __u32 res;
+
+    if (!len || (len == 1 && name[0] == '.'))
+	return DOT_OFFSET;
+    if (len == 2 && name[0] == '.' && name[1] == '.')
+	return DOT_DOT_OFFSET;
+
+    res = s->u.reiserfs_sb.s_hash_function (name, len);
+
+    // take bits from 7-th to 30-th including both bounds
+    res = GET_HASH_VALUE(res);
+    if (res == 0)
+	// needed to have no names before "." and ".." those have hash
+	// value == 0 and generation conters 1 and 2 accordingly
+	res = 128;
+    return res + MAX_GENERATION_NUMBER;
+}
+
+
+static int reiserfs_match (struct reiserfs_dir_entry * de, 
+			   const char * name, int namelen)
+{
+    int retval = NAME_NOT_FOUND;
+
+    if ((namelen == de->de_namelen) &&
+	!memcmp(de->de_name, name, de->de_namelen))
+	retval = (de_visible (de->de_deh + de->de_entry_num) ? NAME_FOUND : NAME_FOUND_INVISIBLE);
+
+    return retval;
+}
+
+
+/* de's de_bh, de_ih, de_deh, de_item_num, de_entry_num are set already */
+
+				/* used when hash collisions exist */
+
+
+static int linear_search_in_dir_item (struct cpu_key * key, struct reiserfs_dir_entry * de,
+				      const char * name, int namelen)
+{
+    struct reiserfs_de_head * deh = de->de_deh;
+    int retval;
+    int i;
+
+    i = de->de_entry_num;
+
+    if (i == I_ENTRY_COUNT (de->de_ih) ||
+	GET_HASH_VALUE (deh_offset (deh + i)) != GET_HASH_VALUE (cpu_key_k_offset (key))) {
+	i --;
+    }
+
+    RFALSE( de->de_deh != B_I_DEH (de->de_bh, de->de_ih),
+	    "vs-7010: array of entry headers not found");
+
+    deh += i;
+
+    for (; i >= 0; i --, deh --) {
+	if (GET_HASH_VALUE (deh_offset (deh)) !=
+	    GET_HASH_VALUE (cpu_key_k_offset (key))) {
+	    // hash value does not match, no need to check whole name
+	    return NAME_NOT_FOUND;
+	}
+   
+	/* mark, that this generation number is used */
+	if (de->de_gen_number_bit_string)
+	    set_bit (GET_GENERATION_NUMBER (deh_offset (deh)), (unsigned long *)de->de_gen_number_bit_string);
+
+	// calculate pointer to name and namelen
+	de->de_entry_num = i;
+	set_de_name_and_namelen (de);
+
+	if ((retval = reiserfs_match (de, name, namelen)) != NAME_NOT_FOUND) {
+	    // de's de_name, de_namelen, de_recordlen are set. Fill the rest:
+
+	    // key of pointed object
+	    set_de_object_key (de);
+
+	    store_de_entry_key (de);
+
+	    // retval can be NAME_FOUND or NAME_FOUND_INVISIBLE
+	    return retval;
+	}
+    }
+
+    if (GET_GENERATION_NUMBER (le_ih_k_offset (de->de_ih)) == 0)
+	/* we have reached left most entry in the node. In common we
+           have to go to the left neighbor, but if generation counter
+           is 0 already, we know for sure, that there is no name with
+           the same hash value */
+	// FIXME: this work correctly only because hash value can not
+	// be 0. Btw, in case of Yura's hash it is probably possible,
+	// so, this is a bug
+	return NAME_NOT_FOUND;
+
+    RFALSE( de->de_item_num,
+	    "vs-7015: two diritems of the same directory in one node?");
+
+    return GOTO_PREVIOUS_ITEM;
+}
+
+
+// may return NAME_FOUND, NAME_FOUND_INVISIBLE, NAME_NOT_FOUND
+// FIXME: should add something like IOERROR
+static int reiserfs_find_entry (struct inode * dir, const char * name, int namelen, 
+				struct path * path_to_entry, struct reiserfs_dir_entry * de)
+{
+    struct cpu_key key_to_search;
+    int retval;
+
+
+    if (namelen > REISERFS_MAX_NAME (dir->i_sb->s_blocksize))
+	return NAME_NOT_FOUND;
+
+    /* we will search for this key in the tree */
+    make_cpu_key (&key_to_search, dir, 
+		  get_third_component (dir->i_sb, name, namelen), TYPE_DIRENTRY, 3);
+
+    while (1) {
+	retval = search_by_entry_key (dir->i_sb, &key_to_search, path_to_entry, de);
+	if (retval == IO_ERROR) {
+	    reiserfs_warning (dir->i_sb, "zam-7001: io error in %s\n", __FUNCTION__);
+	    return IO_ERROR;
+	}
+
+	/* compare names for all entries having given hash value */
+	retval = linear_search_in_dir_item (&key_to_search, de, name, namelen);
+	if (retval != GOTO_PREVIOUS_ITEM) {
+	    /* there is no need to scan directory anymore. Given entry found or does not exist */
+	    path_to_entry->pos_in_item = de->de_entry_num;
+	    return retval;
+	}
+
+	/* there is left neighboring item of this directory and given entry can be there */
+	set_cpu_key_k_offset (&key_to_search, le_ih_k_offset (de->de_ih) - 1);
+	pathrelse (path_to_entry);
+
+    } /* while (1) */
+}
+
+
+static struct dentry * reiserfs_lookup (struct inode * dir, struct dentry * dentry)
+{
+    int retval;
+    struct inode * inode = NULL;
+    struct reiserfs_dir_entry de;
+    INITIALIZE_PATH (path_to_entry);
+
+    reiserfs_check_lock_depth("lookup") ;
+
+    if (REISERFS_MAX_NAME (dir->i_sb->s_blocksize) < dentry->d_name.len)
+	return ERR_PTR(-ENAMETOOLONG);
+
+    de.de_gen_number_bit_string = 0;
+    retval = reiserfs_find_entry (dir, dentry->d_name.name, dentry->d_name.len, &path_to_entry, &de);
+    pathrelse (&path_to_entry);
+    if (retval == NAME_FOUND) {
+	inode = reiserfs_iget (dir->i_sb, (struct cpu_key *)&(de.de_dir_id));
+	if (!inode || IS_ERR(inode)) {
+	    return ERR_PTR(-EACCES);
+        }
+    }
+    if ( retval == IO_ERROR ) {
+	return ERR_PTR(-EIO);
+    }
+
+    d_add(dentry, inode);
+    return NULL;
+}
+
+/* add entry to the directory (entry can be hidden). 
+
+insert definition of when hidden directories are used here -Hans
+
+ Does not mark dir   inode dirty, do it after successesfull call to it */
+
+static int reiserfs_add_entry (struct reiserfs_transaction_handle *th, struct inode * dir,
+                               const char * name, int namelen, struct inode * inode,
+			       int visible)
+{
+    struct cpu_key entry_key;
+    struct reiserfs_de_head * deh;
+    INITIALIZE_PATH (path);
+    struct reiserfs_dir_entry de;
+    int bit_string [MAX_GENERATION_NUMBER / (sizeof(int) * 8) + 1];
+    int gen_number;
+    char small_buf[32+DEH_SIZE] ; /* 48 bytes now and we avoid kmalloc
+                                     if we create file with short name */
+    char * buffer;
+    int buflen, paste_size;
+    int retval;
+
+
+    /* cannot allow items to be added into a busy deleted directory */
+    if (!namelen)
+	return -EINVAL;
+
+    if (namelen > REISERFS_MAX_NAME (dir->i_sb->s_blocksize))
+	return -ENAMETOOLONG;
+
+    /* each entry has unique key. compose it */
+    make_cpu_key (&entry_key, dir, 
+		  get_third_component (dir->i_sb, name, namelen), TYPE_DIRENTRY, 3);
+
+    /* get memory for composing the entry */
+    buflen = DEH_SIZE + ROUND_UP (namelen);
+    if (buflen > sizeof (small_buf)) {
+	buffer = reiserfs_kmalloc (buflen, GFP_NOFS, dir->i_sb);
+	if (buffer == 0)
+	    return -ENOMEM;
+    } else
+	buffer = small_buf;
+
+    paste_size = (get_inode_sd_version (dir) == STAT_DATA_V1) ? (DEH_SIZE + namelen) : buflen;
+
+    /* fill buffer : directory entry head, name[, dir objectid | , stat data | ,stat data, dir objectid ] */
+    deh = (struct reiserfs_de_head *)buffer;
+    deh->deh_location = 0; /* JDM Endian safe if 0 */
+    put_deh_offset( deh, cpu_key_k_offset( &entry_key ) );
+    deh->deh_state = 0; /* JDM Endian safe if 0 */
+    /* put key (ino analog) to de */
+    deh->deh_dir_id = INODE_PKEY (inode)->k_dir_id; /* safe: k_dir_id is le */
+    deh->deh_objectid = INODE_PKEY (inode)->k_objectid; /* safe: k_objectid is le */
+
+    /* copy name */
+    memcpy ((char *)(deh + 1), name, namelen);
+    /* padd by 0s to the 4 byte boundary */
+    padd_item ((char *)(deh + 1), ROUND_UP (namelen), namelen);
+
+    /* entry is ready to be pasted into tree, set 'visibility' and 'stat data in entry' attributes */
+    mark_de_without_sd (deh);
+    visible ? mark_de_visible (deh) : mark_de_hidden (deh);
+
+    /* find the proper place for the new entry */
+    memset (bit_string, 0, sizeof (bit_string));
+    de.de_gen_number_bit_string = (char *)bit_string;
+    retval = reiserfs_find_entry (dir, name, namelen, &path, &de);
+    if( retval != NAME_NOT_FOUND ) {
+	if (buffer != small_buf)
+	    reiserfs_kfree (buffer, buflen, dir->i_sb);
+	pathrelse (&path);
+
+	if ( retval == IO_ERROR ) {
+	    return -EIO;
+	}
+
+        if (retval != NAME_FOUND) {
+	    reiserfs_warning (dir->i_sb, "zam-7002:%s: \"reiserfs_find_entry\" has returned"
+                              " unexpected value (%d)\n", __FUNCTION__, retval);
+       }
+
+	return -EEXIST;
+    }
+
+    gen_number = find_first_zero_bit ((unsigned long *)bit_string, MAX_GENERATION_NUMBER + 1);
+    if (gen_number > MAX_GENERATION_NUMBER) {
+      /* there is no free generation number */
+      reiserfs_warning (dir->i_sb, "reiserfs_add_entry: Congratulations! we have got hash function screwed up\n");
+      if (buffer != small_buf)
+          reiserfs_kfree (buffer, buflen, dir->i_sb);
+      pathrelse (&path);
+/*
+ * Trivial changes by Alan Cox to remove EHASHCOLLISION for compatibility
+ *
+ * Trivial Changes:
+ * Rights granted to Hans Reiser to redistribute under other terms providing
+ * he accepts all liability including but not limited to patent, fitness
+ * for purpose, and direct or indirect claims arising from failure to perform.
+ *
+ * NO WARRANTY
+ * This is one of two lines that this fix consist of.
+ */
+      return -EBUSY;
+      /* I think it was better to have an error code with a name that says
+	 what it means, but I choose not to fight over it.  Persons porting to
+	 other operating systems should consider keeping it as it was
+	 (return -EHASHCOLLISION;). -Hans */
+    }
+    /* adjust offset of directory enrty */
+    put_deh_offset(deh, SET_GENERATION_NUMBER(deh_offset(deh), gen_number));
+    set_cpu_key_k_offset (&entry_key, deh_offset(deh));
+ 
+    /* update max-hash-collisions counter in reiserfs_sb_info */
+    PROC_INFO_MAX( th -> t_super, max_hash_collisions, gen_number );
+ 		  
+    if (gen_number != 0) {	/* we need to re-search for the insertion point */
+      if (search_by_entry_key (dir->i_sb, &entry_key, &path, &de) != NAME_NOT_FOUND) {
+            reiserfs_warning (dir->i_sb, "vs-7032: reiserfs_add_entry: "
+                            "entry with this key (%K) already exists\n", &entry_key);
+
+	    if (buffer != small_buf)
+		reiserfs_kfree (buffer, buflen, dir->i_sb);
+	    pathrelse (&path);
+	    /* Following line is 2nd line touched by Alan Cox' trivial fix */
+	    return -EBUSY;
+      /* I think it was better to have an error code with a name that says
+	 what it means, but I choose not to fight over it.  Persons porting to
+	 other operating systems should consider keeping it as it was
+	 (return -EHASHCOLLISION;). -Hans */
+	}
+    }
+  
+    /* perform the insertion of the entry that we have prepared */
+    retval = reiserfs_paste_into_item (th, &path, &entry_key, buffer, paste_size);
+    if (buffer != small_buf)
+	reiserfs_kfree (buffer, buflen, dir->i_sb);
+    if (retval) {
+	reiserfs_check_path(&path) ;
+	return retval;
+    }
+
+    dir->i_size += paste_size;
+    dir->i_blocks = ((dir->i_size + 511) >> 9);
+    dir->i_mtime = dir->i_ctime = CURRENT_TIME;
+    if (!S_ISDIR (inode->i_mode) && visible)
+	// reiserfs_mkdir or reiserfs_rename will do that by itself
+	reiserfs_update_sd (th, dir);
+
+    reiserfs_check_path(&path) ;
+    return 0;
+}
+
+/* quota utility function, call if you've had to abort after calling
+** new_inode_init, and have not called reiserfs_new_inode yet.
+** This should only be called on inodes that do not hav stat data
+** inserted into the tree yet.
+*/
+static int drop_new_inode(struct inode *inode) {
+    make_bad_inode(inode) ;
+    iput(inode) ;
+    return 0 ;
+}
+
+/* utility function that does setup for reiserfs_new_inode.  
+** DQUOT_ALLOC_INODE cannot be called inside a transaction, so we had
+** to pull some bits of reiserfs_new_inode out into this func.
+*/
+static int new_inode_init(struct inode *inode, struct inode *dir, int mode) {
+
+    /* the quota init calls have to know who to charge the quota to, so
+    ** we have to set uid and gid here
+    */
+    inode->i_uid = current->fsuid;
+    inode->i_mode = mode;
+
+    if (dir->i_mode & S_ISGID) {
+        inode->i_gid = dir->i_gid;
+        if (S_ISDIR(mode))
+            inode->i_mode |= S_ISGID;
+    } else
+        inode->i_gid = current->fsgid;
+
+    return 0 ;
+}
+  
+static int reiserfs_create (struct inode * dir, struct dentry *dentry, int mode)
+{
+    int retval;
+    struct inode * inode;
+    int jbegin_count = JOURNAL_PER_BALANCE_CNT * 2 ;
+    struct reiserfs_transaction_handle th ;
+
+    if (!(inode = new_inode(dir->i_sb))) {
+	return -ENOMEM ;
+    }
+    retval = new_inode_init(inode, dir, mode) ;
+    if (retval)
+	return retval ;
+
+    journal_begin(&th, dir->i_sb, jbegin_count) ;
+    th.t_caller = "create" ;
+    retval = reiserfs_new_inode (&th, dir, mode, 0, 0/*i_size*/, dentry, inode);
+    if (retval) {
+	goto out_failed ;
+    }
+	
+    inode->i_op = &reiserfs_file_inode_operations;
+    inode->i_fop = &reiserfs_file_operations;
+    inode->i_mapping->a_ops = &reiserfs_address_space_operations ;
+
+    retval = reiserfs_add_entry (&th, dir, dentry->d_name.name, dentry->d_name.len, 
+				inode, 1/*visible*/);
+    if (retval) {
+	inode->i_nlink--;
+	reiserfs_update_sd (&th, inode);
+	journal_end(&th, dir->i_sb, jbegin_count) ;
+	iput(inode) ;
+	goto out_failed ;
+    }
+    reiserfs_update_inode_transaction(inode) ;
+    reiserfs_update_inode_transaction(dir) ;
+
+    d_instantiate(dentry, inode);
+    journal_end(&th, dir->i_sb, jbegin_count) ;
+    return 0;
+
+out_failed:
+    return retval ;
+}
+
+
+static int reiserfs_mknod (struct inode * dir, struct dentry *dentry, int mode, int rdev)
+{
+    int retval;
+    struct inode * inode;
+    struct reiserfs_transaction_handle th ;
+    int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3; 
+
+    if (!(inode = new_inode(dir->i_sb))) {
+	return -ENOMEM ;
+    }
+    retval = new_inode_init(inode, dir, mode) ;
+    if (retval)
+        return retval ;
+
+    journal_begin(&th, dir->i_sb, jbegin_count) ;
+
+    retval = reiserfs_new_inode(&th, dir, mode, 0, 0/*i_size*/, dentry, inode);
+    if (retval) {
+	goto out_failed; 
+    }
+
+    init_special_inode(inode, mode, rdev) ;
+
+    //FIXME: needed for block and char devices only
+    reiserfs_update_sd (&th, inode);
+
+    reiserfs_update_inode_transaction(inode) ;
+    reiserfs_update_inode_transaction(dir) ;
+
+    retval = reiserfs_add_entry (&th, dir, dentry->d_name.name, dentry->d_name.len, 
+				 inode, 1/*visible*/);
+    if (retval) {
+	inode->i_nlink--;
+	reiserfs_update_sd (&th, inode);
+	journal_end(&th, dir->i_sb, jbegin_count) ;
+	iput(inode) ;
+        goto out_failed; 
+    }
+
+    d_instantiate(dentry, inode);
+    journal_end(&th, dir->i_sb, jbegin_count) ;
+    return 0;
+
+out_failed:
+    return retval ;
+}
+
+
+static int reiserfs_mkdir (struct inode * dir, struct dentry *dentry, int mode)
+{
+    int retval;
+    struct inode * inode;
+    struct reiserfs_transaction_handle th ;
+    int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3; 
+
+    mode = S_IFDIR | mode;
+    if (!(inode = new_inode(dir->i_sb))) {
+	return -ENOMEM ;
+    }
+    retval = new_inode_init(inode, dir, mode) ;
+    if (retval)
+	return retval ;
+
+    journal_begin(&th, dir->i_sb, jbegin_count) ;
+
+    /* inc the link count now, so another writer doesn't overflow it while
+    ** we sleep later on.
+    */
+    INC_DIR_INODE_NLINK(dir)
+
+#ifdef DISPLACE_NEW_PACKING_LOCALITIES
+    /* set flag that new packing locality created and new blocks for the content     * of that directory are not displaced yet */
+    dir->u.reiserfs_i.new_packing_locality = 1;
+#endif
+    retval = reiserfs_new_inode(&th, dir, mode, 0/*symlink*/,
+				old_format_only (dir->i_sb) ?
+				EMPTY_DIR_SIZE_V1 : EMPTY_DIR_SIZE,
+				dentry, inode) ;
+    if (retval) {
+	dir->i_nlink-- ;
+	goto out_failed ;
+    }
+    reiserfs_update_inode_transaction(inode) ;
+    reiserfs_update_inode_transaction(dir) ;
+
+    inode->i_op = &reiserfs_dir_inode_operations;
+    inode->i_fop = &reiserfs_dir_operations;
+
+    // note, _this_ add_entry will not update dir's stat data
+    retval = reiserfs_add_entry (&th, dir, dentry->d_name.name, dentry->d_name.len, 
+				inode, 1/*visible*/);
+    if (retval) {
+	inode->i_nlink = 0;
+	DEC_DIR_INODE_NLINK(dir);
+	reiserfs_update_sd (&th, inode);
+	journal_end(&th, dir->i_sb, jbegin_count) ;
+	iput(inode) ;
+	goto out_failed ;
+    }
+
+    // the above add_entry did not update dir's stat data
+    reiserfs_update_sd (&th, dir);
+
+    d_instantiate(dentry, inode);
+    journal_end(&th, dir->i_sb, jbegin_count) ;
+    return 0;
+
+out_failed:
+    return retval ;
+}
+
+static inline int reiserfs_empty_dir(struct inode *inode) {
+    /* we can cheat because an old format dir cannot have
+    ** EMPTY_DIR_SIZE, and a new format dir cannot have
+    ** EMPTY_DIR_SIZE_V1.  So, if the inode is either size, 
+    ** regardless of disk format version, the directory is empty.
+    */
+    if (inode->i_size != EMPTY_DIR_SIZE &&
+        inode->i_size != EMPTY_DIR_SIZE_V1) {
+        return 0 ;
+    }
+    return 1 ;
+}
+
+
+static int reiserfs_rmdir (struct inode * dir, struct dentry *dentry)
+{
+    int retval;
+    struct inode * inode;
+    int windex ;
+    struct reiserfs_transaction_handle th ;
+    int jbegin_count; 
+    INITIALIZE_PATH (path);
+    struct reiserfs_dir_entry de;
+
+
+    /* we will be doing 2 balancings and update 2 stat data */
+    jbegin_count = JOURNAL_PER_BALANCE_CNT * 2 + 2;
+
+    journal_begin(&th, dir->i_sb, jbegin_count) ;
+    windex = push_journal_writer("reiserfs_rmdir") ;
+
+    de.de_gen_number_bit_string = 0;
+    if ( (retval = reiserfs_find_entry (dir, dentry->d_name.name, dentry->d_name.len, &path, &de)) == NAME_NOT_FOUND) {
+	retval = -ENOENT;
+	goto end_rmdir;
+    } else if ( retval == IO_ERROR) {
+	retval = -EIO;
+	goto end_rmdir;
+    }
+
+    inode = dentry->d_inode;
+
+    reiserfs_update_inode_transaction(inode) ;
+    reiserfs_update_inode_transaction(dir) ;
+
+    if (de.de_objectid != inode->i_ino) {
+	// FIXME: compare key of an object and a key found in the
+	// entry
+	retval = -EIO;
+	goto end_rmdir;
+    }
+    if (!reiserfs_empty_dir(inode)) {
+	retval = -ENOTEMPTY;
+	goto end_rmdir;
+    }
+
+    /* cut entry from dir directory */
+    retval = reiserfs_cut_from_item (&th, &path, &(de.de_entry_key), dir, 
+                                     NULL, /* page */ 
+				     0/*new file size - not used here*/);
+    if (retval < 0)
+	goto end_rmdir;
+
+    if ( inode->i_nlink != 2 && inode->i_nlink != 1 )
+	reiserfs_warning ( inode->i_sb, "reiserfs_rmdir: empty directory has nlink != 2 (%d)\n", inode->i_nlink);
+
+    inode->i_nlink = 0;
+    inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+    reiserfs_update_sd (&th, inode);
+
+    DEC_DIR_INODE_NLINK(dir)
+    dir->i_size -= (DEH_SIZE + de.de_entrylen);
+    dir->i_blocks = ((dir->i_size + 511) >> 9);
+    reiserfs_update_sd (&th, dir);
+
+    /* prevent empty directory from getting lost */
+    add_save_link (&th, inode, 0/* not truncate */);
+
+    pop_journal_writer(windex) ;
+    journal_end(&th, dir->i_sb, jbegin_count) ;
+    reiserfs_check_path(&path) ;
+    return 0;
+	
+ end_rmdir:
+    /* we must release path, because we did not call
+       reiserfs_cut_from_item, or reiserfs_cut_from_item does not
+       release path if operation was not complete */
+    pathrelse (&path);
+    pop_journal_writer(windex) ;
+    journal_end(&th, dir->i_sb, jbegin_count) ;
+    return retval;	
+}
+
+
+static int reiserfs_unlink (struct inode * dir, struct dentry *dentry)
+{
+    int retval;
+    struct inode * inode;
+    struct reiserfs_dir_entry de;
+    INITIALIZE_PATH (path);
+    int windex ;
+    struct reiserfs_transaction_handle th ;
+    int jbegin_count;
+    unsigned long savelink;
+
+    inode = dentry->d_inode;
+
+    /* in this transaction we can be doing at max two balancings and update
+       two stat datas */
+    jbegin_count = JOURNAL_PER_BALANCE_CNT * 2 + 2;
+
+    journal_begin(&th, dir->i_sb, jbegin_count) ;
+    windex = push_journal_writer("reiserfs_unlink") ;
+	
+    de.de_gen_number_bit_string = 0;
+    if ( (retval = reiserfs_find_entry (dir, dentry->d_name.name, dentry->d_name.len, &path, &de)) == NAME_NOT_FOUND) {
+	retval = -ENOENT;
+	goto end_unlink;
+    } else if (retval == IO_ERROR) {
+	retval = -EIO;
+	goto end_unlink;
+    }
+
+    reiserfs_update_inode_transaction(inode) ;
+    reiserfs_update_inode_transaction(dir) ;
+
+    if (de.de_objectid != inode->i_ino) {
+	// FIXME: compare key of an object and a key found in the
+	// entry
+	retval = -EIO;
+	goto end_unlink;
+    }
+  
+    if (!inode->i_nlink) {
+	reiserfs_warning(inode->i_sb, "reiserfs_unlink: deleting nonexistent file (%s:%lu), %d\n",
+	       kdevname(inode->i_dev), inode->i_ino, inode->i_nlink);
+	inode->i_nlink = 1;
+    }
+
+    inode->i_nlink--;
+
+    /* 
+     * we schedule before doing the add_save_link call, save the link
+     * count so we don't race
+     */
+    savelink = inode->i_nlink;
+
+
+    retval = reiserfs_cut_from_item (&th, &path, &(de.de_entry_key), dir, NULL, 0);
+    if (retval < 0) {
+	inode->i_nlink++;
+	goto end_unlink;
+    }
+    inode->i_ctime = CURRENT_TIME;
+    reiserfs_update_sd (&th, inode);
+
+    dir->i_size -= (de.de_entrylen + DEH_SIZE);
+    dir->i_blocks = ((dir->i_size + 511) >> 9);
+    dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+    reiserfs_update_sd (&th, dir);
+
+    if (!savelink)
+       /* prevent file from getting lost */
+       add_save_link (&th, inode, 0/* not truncate */);
+
+    pop_journal_writer(windex) ;
+    journal_end(&th, dir->i_sb, jbegin_count) ;
+    reiserfs_check_path(&path) ;
+    return 0;
+
+ end_unlink:
+    pathrelse (&path);
+    pop_journal_writer(windex) ;
+    journal_end(&th, dir->i_sb, jbegin_count) ;
+    reiserfs_check_path(&path) ;
+    return retval;
+}
+
+
+static int reiserfs_symlink (struct inode * parent_dir, struct dentry * dentry, const char * symname)
+{
+    int retval;
+    struct inode * inode;
+    char * name;
+    int item_len;
+    int mode = S_IFLNK | S_IRWXUGO ;
+    struct reiserfs_transaction_handle th ;
+    int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3; 
+
+
+    if (!(inode = new_inode(parent_dir->i_sb))) {
+  	return -ENOMEM ;
+    }
+    retval = new_inode_init(inode, parent_dir, mode) ;
+    if (retval) {
+	return retval ;
+    }
+
+    item_len = ROUND_UP (strlen (symname));
+    if (item_len > MAX_DIRECT_ITEM_LEN (parent_dir->i_sb->s_blocksize)) {
+	retval = -ENAMETOOLONG;
+	drop_new_inode(inode) ;
+	goto out_failed ;
+    }
+  
+    name = reiserfs_kmalloc (item_len, GFP_NOFS, parent_dir->i_sb);
+    if (!name) {
+	retval = -ENOMEM;
+	drop_new_inode(inode) ;
+	goto out_failed ;
+    }
+    memcpy (name, symname, strlen (symname));
+    padd_item (name, item_len, strlen (symname));
+
+    journal_begin(&th, parent_dir->i_sb, jbegin_count) ;
+
+    retval = reiserfs_new_inode(&th, parent_dir, mode, name,
+				strlen(symname), dentry, inode) ;
+    reiserfs_kfree (name, item_len, parent_dir->i_sb);
+    if (retval) {
+	goto out_failed ;
+    }
+
+    reiserfs_update_inode_transaction(inode) ;
+    reiserfs_update_inode_transaction(parent_dir) ;
+
+    inode->i_op = &page_symlink_inode_operations;
+    inode->i_mapping->a_ops = &reiserfs_address_space_operations;
+
+    // must be sure this inode is written with this transaction
+    //
+    //reiserfs_update_sd (&th, inode, READ_BLOCKS);
+
+    retval = reiserfs_add_entry (&th, parent_dir, dentry->d_name.name, dentry->d_name.len, 
+				 inode, 1/*visible*/);
+    if (retval) {
+	inode->i_nlink--;
+	reiserfs_update_sd (&th, inode);
+	journal_end(&th, parent_dir->i_sb, jbegin_count) ;
+	iput(inode) ;
+	goto out_failed ;
+    }
+
+    d_instantiate(dentry, inode);
+    journal_end(&th, parent_dir->i_sb, jbegin_count) ;
+    return 0;
+
+out_failed:
+    return retval ;
+}
+
+
+static int reiserfs_link (struct dentry * old_dentry, struct inode * dir, struct dentry * dentry)
+{
+    int retval;
+    struct inode *inode = old_dentry->d_inode;
+    int windex ;
+    struct reiserfs_transaction_handle th ;
+    int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3; 
+    time_t ctime;
+
+
+    if (S_ISDIR(inode->i_mode))
+	return -EPERM;
+  
+    if (inode->i_nlink >= REISERFS_LINK_MAX) {
+	//FIXME: sd_nlink is 32 bit for new files
+	return -EMLINK;
+    }
+    if (inode->i_nlink == 0) {
+        return -ENOENT;
+    }
+
+    /* inc before scheduling so reiserfs_unlink knows we are here */
+    inode->i_nlink++;
+
+    journal_begin(&th, dir->i_sb, jbegin_count) ;
+    windex = push_journal_writer("reiserfs_link") ;
+
+    /* create new entry */
+    retval = reiserfs_add_entry (&th, dir, dentry->d_name.name, dentry->d_name.len,
+				 inode, 1/*visible*/);
+
+    reiserfs_update_inode_transaction(inode) ;
+    reiserfs_update_inode_transaction(dir) ;
+
+    if (retval) {
+	inode->i_nlink--;
+	pop_journal_writer(windex) ;
+	journal_end(&th, dir->i_sb, jbegin_count) ;
+	return retval;
+    }
+
+    ctime = CURRENT_TIME;
+    inode->i_ctime = ctime;
+    reiserfs_update_sd (&th, inode);
+
+    atomic_inc(&inode->i_count) ;
+    d_instantiate(dentry, inode);
+    pop_journal_writer(windex) ;
+    journal_end(&th, dir->i_sb, jbegin_count) ;
+    return 0;
+}
+
+
+// de contains information pointing to an entry which 
+static int de_still_valid (const char * name, int len, struct reiserfs_dir_entry * de)
+{
+    struct reiserfs_dir_entry tmp = *de;
+    
+    // recalculate pointer to name and name length
+    set_de_name_and_namelen (&tmp);
+    // FIXME: could check more
+    if (tmp.de_namelen != len || memcmp (name, de->de_name, len))
+	return 0;
+    return 1;
+}
+
+
+static int entry_points_to_object (const char * name, int len, struct reiserfs_dir_entry * de, struct inode * inode)
+{
+    if (!de_still_valid (name, len, de))
+	return 0;
+
+    if (inode) {
+	if (!de_visible (de->de_deh + de->de_entry_num))
+	    reiserfs_panic (0, "vs-7042: entry_points_to_object: entry must be visible");
+	return (de->de_objectid == inode->i_ino) ? 1 : 0;
+    }
+
+    /* this must be added hidden entry */
+    if (de_visible (de->de_deh + de->de_entry_num))
+	reiserfs_panic (0, "vs-7043: entry_points_to_object: entry must be visible");
+
+    return 1;
+}
+
+
+/* sets key of objectid the entry has to point to */
+static void set_ino_in_dir_entry (struct reiserfs_dir_entry * de, struct key * key)
+{
+    /* JDM These operations are endian safe - both are le */
+    de->de_deh[de->de_entry_num].deh_dir_id = key->k_dir_id;
+    de->de_deh[de->de_entry_num].deh_objectid = key->k_objectid;
+}
+
+
+/* 
+ * process, that is going to call fix_nodes/do_balance must hold only
+ * one path. If it holds 2 or more, it can get into endless waiting in
+ * get_empty_nodes or its clones 
+ */
+static int reiserfs_rename (struct inode * old_dir, struct dentry *old_dentry,
+			    struct inode * new_dir, struct dentry *new_dentry)
+{
+    int retval;
+    INITIALIZE_PATH (old_entry_path);
+    INITIALIZE_PATH (new_entry_path);
+    INITIALIZE_PATH (dot_dot_entry_path);
+    struct item_head new_entry_ih, old_entry_ih, dot_dot_ih ;
+    struct reiserfs_dir_entry old_de, new_de, dot_dot_de;
+    struct inode * old_inode, * new_dentry_inode;
+    int windex ;
+    struct reiserfs_transaction_handle th ;
+    int jbegin_count ; 
+    umode_t old_inode_mode;
+    time_t ctime;
+    unsigned long savelink = 1;
+
+
+    /* two balancings: old name removal, new name insertion or "save" link,
+       stat data updates: old directory and new directory and maybe block
+       containing ".." of renamed directory */
+    jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 3;
+
+    old_inode = old_dentry->d_inode;
+    new_dentry_inode = new_dentry->d_inode;
+
+    // make sure, that oldname still exists and points to an object we
+    // are going to rename
+    old_de.de_gen_number_bit_string = 0;
+    retval = reiserfs_find_entry (old_dir, old_dentry->d_name.name, old_dentry->d_name.len,
+				  &old_entry_path, &old_de);
+    pathrelse (&old_entry_path);
+    if (retval == IO_ERROR)
+	return -EIO;
+
+    if (retval != NAME_FOUND || old_de.de_objectid != old_inode->i_ino) {
+	return -ENOENT;
+    }
+
+    old_inode_mode = old_inode->i_mode;
+    if (S_ISDIR(old_inode_mode)) {
+	// make sure, that directory being renamed has correct ".." 
+	// and that its new parent directory has not too many links
+	// already
+
+	if (new_dentry_inode) {
+	    if (!reiserfs_empty_dir(new_dentry_inode)) {
+		return -ENOTEMPTY;
+	    }
+	}
+	
+	/* directory is renamed, its parent directory will be changed, 
+	** so find ".." entry 
+	*/
+	dot_dot_de.de_gen_number_bit_string = 0;
+	retval = reiserfs_find_entry (old_inode, "..", 2, &dot_dot_entry_path, &dot_dot_de);
+	pathrelse (&dot_dot_entry_path);
+	if (retval != NAME_FOUND)
+	    return -EIO;
+
+	/* inode number of .. must equal old_dir->i_ino */
+	if (dot_dot_de.de_objectid != old_dir->i_ino)
+	    return -EIO;
+    }
+
+    journal_begin(&th, old_dir->i_sb, jbegin_count) ;
+    windex = push_journal_writer("reiserfs_rename") ;
+
+    /* add new entry (or find the existing one) */
+    retval = reiserfs_add_entry (&th, new_dir, new_dentry->d_name.name, new_dentry->d_name.len, 
+				 old_inode, 0);
+    if (retval == -EEXIST) {
+	if (!new_dentry_inode) {
+	    reiserfs_panic (old_dir->i_sb,
+			    "vs-7050: new entry is found, new inode == 0\n");
+	}
+    } else if (retval) {
+	pop_journal_writer(windex) ;
+	journal_end(&th, old_dir->i_sb, jbegin_count) ;
+	return retval;
+    }
+
+    reiserfs_update_inode_transaction(old_dir) ;
+    reiserfs_update_inode_transaction(new_dir) ;
+
+    /* this makes it so an fsync on an open fd for the old name will
+    ** commit the rename operation
+    */
+    reiserfs_update_inode_transaction(old_inode) ;
+
+    if (new_dentry_inode) 
+	reiserfs_update_inode_transaction(new_dentry_inode) ;
+
+    while (1) {
+	// look for old name using corresponding entry key (found by reiserfs_find_entry)
+	if (search_by_entry_key (new_dir->i_sb, &old_de.de_entry_key, &old_entry_path, &old_de) != NAME_FOUND)
+	    BUG ();
+
+	copy_item_head(&old_entry_ih, get_ih(&old_entry_path)) ;
+
+	reiserfs_prepare_for_journal(old_inode->i_sb, old_de.de_bh, 1) ;
+
+	// look for new name by reiserfs_find_entry
+	new_de.de_gen_number_bit_string = 0;
+	retval = reiserfs_find_entry (new_dir, new_dentry->d_name.name, new_dentry->d_name.len, 
+				      &new_entry_path, &new_de);
+	// reiserfs_add_entry should not return IO_ERROR, because it is called with essentially same parameters from
+        // reiserfs_add_entry above, and we'll catch any i/o errors before we get here.
+	if (retval != NAME_FOUND_INVISIBLE && retval != NAME_FOUND)
+	    BUG ();
+
+	copy_item_head(&new_entry_ih, get_ih(&new_entry_path)) ;
+
+	reiserfs_prepare_for_journal(old_inode->i_sb, new_de.de_bh, 1) ;
+
+	if (S_ISDIR(old_inode->i_mode)) {
+	    if (search_by_entry_key (new_dir->i_sb, &dot_dot_de.de_entry_key, &dot_dot_entry_path, &dot_dot_de) != NAME_FOUND)
+		BUG ();
+	    copy_item_head(&dot_dot_ih, get_ih(&dot_dot_entry_path)) ;
+	    // node containing ".." gets into transaction
+	    reiserfs_prepare_for_journal(old_inode->i_sb, dot_dot_de.de_bh, 1) ;
+	}
+				/* we should check seals here, not do
+                                   this stuff, yes? Then, having
+                                   gathered everything into RAM we
+                                   should lock the buffers, yes?  -Hans */
+				/* probably.  our rename needs to hold more 
+				** than one path at once.  The seals would 
+				** have to be written to deal with multi-path 
+				** issues -chris
+				*/
+	/* sanity checking before doing the rename - avoid races many
+	** of the above checks could have scheduled.  We have to be
+	** sure our items haven't been shifted by another process.
+	*/
+	if (item_moved(&new_entry_ih, &new_entry_path) ||
+	    !entry_points_to_object(new_dentry->d_name.name, 
+	                            new_dentry->d_name.len,
+				    &new_de, new_dentry_inode) ||
+	    item_moved(&old_entry_ih, &old_entry_path) || 
+	    !entry_points_to_object (old_dentry->d_name.name, 
+	                             old_dentry->d_name.len,
+				     &old_de, old_inode)) {
+	    reiserfs_restore_prepared_buffer (old_inode->i_sb, new_de.de_bh);
+	    reiserfs_restore_prepared_buffer (old_inode->i_sb, old_de.de_bh);
+	    if (S_ISDIR(old_inode_mode))
+		reiserfs_restore_prepared_buffer (old_inode->i_sb, dot_dot_de.de_bh);
+	    continue;
+	}
+	if (S_ISDIR(old_inode_mode)) {
+	    if ( item_moved(&dot_dot_ih, &dot_dot_entry_path) ||
+		 !entry_points_to_object ( "..", 2, &dot_dot_de, old_dir) ) {
+		reiserfs_restore_prepared_buffer (old_inode->i_sb, old_de.de_bh);
+		reiserfs_restore_prepared_buffer (old_inode->i_sb, new_de.de_bh);
+		reiserfs_restore_prepared_buffer (old_inode->i_sb, dot_dot_de.de_bh);
+		continue;
+	    }
+	}
+
+
+	RFALSE( S_ISDIR(old_inode_mode) && 
+		!reiserfs_buffer_prepared(dot_dot_de.de_bh), "" );
+
+	break;
+    }
+
+    /* ok, all the changes can be done in one fell swoop when we
+       have claimed all the buffers needed.*/
+    
+    mark_de_visible (new_de.de_deh + new_de.de_entry_num);
+    set_ino_in_dir_entry (&new_de, INODE_PKEY (old_inode));
+    journal_mark_dirty (&th, old_dir->i_sb, new_de.de_bh);
+
+    mark_de_hidden (old_de.de_deh + old_de.de_entry_num);
+    journal_mark_dirty (&th, old_dir->i_sb, old_de.de_bh);
+    old_dir->i_ctime = old_dir->i_mtime = CURRENT_TIME;
+    new_dir->i_ctime = new_dir->i_mtime = CURRENT_TIME;
+
+    if (new_dentry_inode) {
+	// adjust link number of the victim
+	if (S_ISDIR(new_dentry_inode->i_mode)) {
+	    new_dentry_inode->i_nlink  = 0;
+	} else {
+	    new_dentry_inode->i_nlink--;
+	}
+	ctime = CURRENT_TIME;
+	new_dentry_inode->i_ctime = ctime;
+	savelink = new_dentry_inode->i_nlink;
+    }
+
+    if (S_ISDIR(old_inode_mode)) {
+	// adjust ".." of renamed directory 
+	set_ino_in_dir_entry (&dot_dot_de, INODE_PKEY (new_dir));
+	journal_mark_dirty (&th, new_dir->i_sb, dot_dot_de.de_bh);
+	
+        if (!new_dentry_inode)
+	    /* there (in new_dir) was no directory, so it got new link
+	       (".."  of renamed directory) */
+	    INC_DIR_INODE_NLINK(new_dir);
+		
+	/* old directory lost one link - ".. " of renamed directory */
+	DEC_DIR_INODE_NLINK(old_dir);
+    }
+
+    // looks like in 2.3.99pre3 brelse is atomic. so we can use pathrelse
+    pathrelse (&new_entry_path);
+    pathrelse (&dot_dot_entry_path);
+
+    // FIXME: this reiserfs_cut_from_item's return value may screw up
+    // anybody, but it will panic if will not be able to find the
+    // entry. This needs one more clean up
+    if (reiserfs_cut_from_item (&th, &old_entry_path, &(old_de.de_entry_key), old_dir, NULL, 0) < 0)
+	reiserfs_warning ((&th)->t_super, "vs-7060: reiserfs_rename: couldn't not cut old name. Fsck later?\n");
+
+    old_dir->i_size -= DEH_SIZE + old_de.de_entrylen;
+    old_dir->i_blocks = ((old_dir->i_size + 511) >> 9);
+
+    reiserfs_update_sd (&th, old_dir);
+    reiserfs_update_sd (&th, new_dir);
+
+    if (new_dentry_inode) {
+	if (savelink == 0)
+	    add_save_link (&th, new_dentry_inode, 0/* not truncate */);
+	reiserfs_update_sd (&th, new_dentry_inode);
+    }
+
+    pop_journal_writer(windex) ;
+    journal_end(&th, old_dir->i_sb, jbegin_count) ;
+    return 0;
+}
+
+
+
+/*
+ * directories can handle most operations...
+ */
+struct inode_operations reiserfs_dir_inode_operations = {
+  //&reiserfs_dir_operations,	/* default_file_ops */
+    create:	reiserfs_create,
+    lookup:	reiserfs_lookup,
+    link:	reiserfs_link,
+    unlink:	reiserfs_unlink,
+    symlink:	reiserfs_symlink,
+    mkdir:	reiserfs_mkdir,
+    rmdir:	reiserfs_rmdir,
+    mknod:	reiserfs_mknod,
+    rename:	reiserfs_rename,
+};
+
diff --git a/fs/reiserfs/objectid.c b/fs/reiserfs/objectid.c
new file mode 100644
index 00000000000000..5a81ba3f1e3bc5
--- /dev/null
+++ b/fs/reiserfs/objectid.c
@@ -0,0 +1,208 @@
+/*
+ * Copyright 2000-2002 by Hans Reiser, licensing governed by reiserfs/README
+ */
+
+#include <linux/config.h>
+#include <linux/string.h>
+#include <linux/locks.h>
+#include <linux/random.h>
+#include <linux/sched.h>
+#include <linux/reiserfs_fs.h>
+#include <linux/reiserfs_fs_sb.h>
+
+// find where objectid map starts
+#define objectid_map(s,rs) (old_format_only (s) ? \
+                         (__u32 *)((struct reiserfs_super_block_v1 *)(rs) + 1) :\
+			 (__u32 *)((rs) + 1))
+
+
+#ifdef CONFIG_REISERFS_CHECK
+
+static void check_objectid_map (struct super_block * s, __u32 * map)
+{
+    if (le32_to_cpu (map[0]) != 1)
+	reiserfs_panic (s, "vs-15010: check_objectid_map: map corrupted: %lx",
+			( long unsigned int ) le32_to_cpu (map[0]));
+
+    // FIXME: add something else here
+}
+
+#else
+static void check_objectid_map (struct super_block * s, __u32 * map)
+{;}
+#endif
+
+
+/* When we allocate objectids we allocate the first unused objectid.
+   Each sequence of objectids in use (the odd sequences) is followed
+   by a sequence of objectids not in use (the even sequences).  We
+   only need to record the last objectid in each of these sequences
+   (both the odd and even sequences) in order to fully define the
+   boundaries of the sequences.  A consequence of allocating the first
+   objectid not in use is that under most conditions this scheme is
+   extremely compact.  The exception is immediately after a sequence
+   of operations which deletes a large number of objects of
+   non-sequential objectids, and even then it will become compact
+   again as soon as more objects are created.  Note that many
+   interesting optimizations of layout could result from complicating
+   objectid assignment, but we have deferred making them for now. */
+
+
+/* get unique object identifier */
+__u32 reiserfs_get_unused_objectid (struct reiserfs_transaction_handle *th)
+{
+    struct super_block * s = th->t_super;
+    struct reiserfs_super_block * rs = SB_DISK_SUPER_BLOCK (s);
+    __u32 * map = objectid_map (s, rs);
+    __u32 unused_objectid;
+
+
+    check_objectid_map (s, map);
+
+    reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s), 1) ;
+                                /* comment needed -Hans */
+    unused_objectid = le32_to_cpu (map[1]);
+    if (unused_objectid == U32_MAX) {
+	reiserfs_warning (s, "REISERFS: get_objectid: no more object ids\n");
+	reiserfs_restore_prepared_buffer(s, SB_BUFFER_WITH_SB(s)) ;
+	return 0;
+    }
+
+    /* This incrementation allocates the first unused objectid. That
+       is to say, the first entry on the objectid map is the first
+       unused objectid, and by incrementing it we use it.  See below
+       where we check to see if we eliminated a sequence of unused
+       objectids.... */
+    map[1] = cpu_to_le32 (unused_objectid + 1);
+
+    /* Now we check to see if we eliminated the last remaining member of
+       the first even sequence (and can eliminate the sequence by
+       eliminating its last objectid from oids), and can collapse the
+       first two odd sequences into one sequence.  If so, then the net
+       result is to eliminate a pair of objectids from oids.  We do this
+       by shifting the entire map to the left. */
+    if (sb_oid_cursize(rs) > 2 && map[1] == map[2]) {
+	memmove (map + 1, map + 3, (sb_oid_cursize(rs) - 3) * sizeof(__u32));
+        set_sb_oid_cursize( rs, sb_oid_cursize(rs) - 2 );
+    }
+
+    journal_mark_dirty(th, s, SB_BUFFER_WITH_SB (s));
+    s->s_dirt = 1;
+    return unused_objectid;
+}
+
+
+/* makes object identifier unused */
+void reiserfs_release_objectid (struct reiserfs_transaction_handle *th, 
+				__u32 objectid_to_release)
+{
+    struct super_block * s = th->t_super;
+    struct reiserfs_super_block * rs = SB_DISK_SUPER_BLOCK (s);
+    __u32 * map = objectid_map (s, rs);
+    int i = 0;
+
+    //return;
+    check_objectid_map (s, map);
+
+    reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s), 1) ;
+    journal_mark_dirty(th, s, SB_BUFFER_WITH_SB (s)); 
+    s->s_dirt = 1;
+
+
+    /* start at the beginning of the objectid map (i = 0) and go to
+       the end of it (i = disk_sb->s_oid_cursize).  Linear search is
+       what we use, though it is possible that binary search would be
+       more efficient after performing lots of deletions (which is
+       when oids is large.)  We only check even i's. */
+    while (i < sb_oid_cursize(rs)) {
+	if (objectid_to_release == le32_to_cpu (map[i])) {
+	    /* This incrementation unallocates the objectid. */
+	    //map[i]++;
+	    map[i] = cpu_to_le32 (le32_to_cpu (map[i]) + 1);
+
+	    /* Did we unallocate the last member of an odd sequence, and can shrink oids? */
+	    if (map[i] == map[i+1]) {
+		/* shrink objectid map */
+		memmove (map + i, map + i + 2, 
+			 (sb_oid_cursize(rs) - i - 2) * sizeof (__u32));
+		//disk_sb->s_oid_cursize -= 2;
+                set_sb_oid_cursize( rs, sb_oid_cursize(rs) - 2 );
+
+		RFALSE( sb_oid_cursize(rs) < 2 || 
+		        sb_oid_cursize(rs) > sb_oid_maxsize(rs),
+		        "vs-15005: objectid map corrupted cur_size == %d (max == %d)",
+                        sb_oid_cursize(rs), sb_oid_maxsize(rs));
+	    }
+	    return;
+	}
+
+	if (objectid_to_release > le32_to_cpu (map[i]) && 
+	    objectid_to_release < le32_to_cpu (map[i + 1])) {
+	    /* size of objectid map is not changed */
+	    if (objectid_to_release + 1 == le32_to_cpu (map[i + 1])) {
+		//objectid_map[i+1]--;
+		map[i + 1] = cpu_to_le32 (le32_to_cpu (map[i + 1]) - 1);
+		return;
+	    }
+
+            /* JDM comparing two little-endian values for equality -- safe */
+	if (sb_oid_cursize(rs) == sb_oid_maxsize(rs)) {
+		/* objectid map must be expanded, but there is no space */
+		PROC_INFO_INC( s, leaked_oid );
+		return;
+	}
+
+	    /* expand the objectid map*/
+	    memmove (map + i + 3, map + i + 1, 
+		     (sb_oid_cursize(rs) - i - 1) * sizeof(__u32));
+	    map[i + 1] = cpu_to_le32 (objectid_to_release);
+	    map[i + 2] = cpu_to_le32 (objectid_to_release + 1);
+            set_sb_oid_cursize( rs, sb_oid_cursize(rs) + 2 );
+	    return;
+	}
+	i += 2;
+    }
+
+    reiserfs_warning (s, "vs-15011: reiserfs_release_objectid: tried to free free object id (%lu)\n", 
+		      ( long unsigned ) objectid_to_release);
+}
+
+
+int reiserfs_convert_objectid_map_v1(struct super_block *s) {
+    struct reiserfs_super_block *disk_sb = SB_DISK_SUPER_BLOCK (s);
+    int cur_size = sb_oid_cursize(disk_sb);
+    int new_size = (s->s_blocksize - SB_SIZE) / sizeof(__u32) / 2 * 2 ;
+    int old_max = sb_oid_maxsize(disk_sb);
+    struct reiserfs_super_block_v1 *disk_sb_v1 ;
+    __u32 *objectid_map, *new_objectid_map ;
+    int i ;
+
+    disk_sb_v1=(struct reiserfs_super_block_v1 *)(SB_BUFFER_WITH_SB(s)->b_data);
+    objectid_map = (__u32 *)(disk_sb_v1 + 1) ;
+    new_objectid_map = (__u32 *)(disk_sb + 1) ;
+
+    if (cur_size > new_size) {
+	/* mark everyone used that was listed as free at the end of the objectid
+	** map 
+	*/
+	objectid_map[new_size - 1] = objectid_map[cur_size - 1] ;
+	set_sb_oid_cursize(disk_sb,new_size) ;
+    }
+    /* move the smaller objectid map past the end of the new super */
+    for (i = new_size - 1 ; i >= 0 ; i--) {
+        objectid_map[i + (old_max - new_size)] = objectid_map[i] ; 
+    }
+
+
+    /* set the max size so we don't overflow later */
+    set_sb_oid_maxsize(disk_sb,new_size) ;
+
+    /* Zero out label and generate random UUID */
+    memset(disk_sb->s_label, 0, sizeof(disk_sb->s_label)) ;
+    generate_random_uuid(disk_sb->s_uuid);
+
+    /* finally, zero out the unused chunk of the new super */
+    memset(disk_sb->s_unused, 0, sizeof(disk_sb->s_unused)) ;
+    return 0 ;
+}
+
diff --git a/fs/reiserfs/prints.c b/fs/reiserfs/prints.c
new file mode 100644
index 00000000000000..d54a58174851f4
--- /dev/null
+++ b/fs/reiserfs/prints.c
@@ -0,0 +1,733 @@
+/*
+ * Copyright 2000-2002 by Hans Reiser, licensing governed by reiserfs/README
+ */
+
+#include <linux/config.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/reiserfs_fs.h>
+#include <linux/string.h>
+
+#include <stdarg.h>
+
+static char error_buf[1024];
+static char fmt_buf[1024];
+static char off_buf[80];
+
+
+static char * reiserfs_cpu_offset (struct cpu_key * key)
+{
+  if (cpu_key_k_type(key) == TYPE_DIRENTRY)
+    sprintf (off_buf, "%Lu(%Lu)", 
+	     (unsigned long long)GET_HASH_VALUE (cpu_key_k_offset (key)),
+	     (unsigned long long)GET_GENERATION_NUMBER (cpu_key_k_offset (key)));
+  else
+    sprintf (off_buf, "0x%Lx", (unsigned long long)cpu_key_k_offset (key));
+  return off_buf;
+}
+
+
+static char * le_offset (struct key * key)
+{
+  int version;
+
+  version = le_key_version (key);
+  if (le_key_k_type (version, key) == TYPE_DIRENTRY)
+    sprintf (off_buf, "%Lu(%Lu)", 
+	     (unsigned long long)GET_HASH_VALUE (le_key_k_offset (version, key)),
+	     (unsigned long long)GET_GENERATION_NUMBER (le_key_k_offset (version, key)));
+  else
+    sprintf (off_buf, "0x%Lx", (unsigned long long)le_key_k_offset (version, key));
+  return off_buf;
+}
+
+
+static char * cpu_type (struct cpu_key * key)
+{
+    if (cpu_key_k_type (key) == TYPE_STAT_DATA)
+	return "SD";
+    if (cpu_key_k_type (key) == TYPE_DIRENTRY)
+	return "DIR";
+    if (cpu_key_k_type (key) == TYPE_DIRECT)
+	return "DIRECT";
+    if (cpu_key_k_type (key) == TYPE_INDIRECT)
+	return "IND";
+    return "UNKNOWN";
+}
+
+
+static char * le_type (struct key * key)
+{
+    int version;
+    
+    version = le_key_version (key);
+
+    if (le_key_k_type (version, key) == TYPE_STAT_DATA)
+	return "SD";
+    if (le_key_k_type (version, key) == TYPE_DIRENTRY)
+	return "DIR";
+    if (le_key_k_type (version, key) == TYPE_DIRECT)
+	return "DIRECT";
+    if (le_key_k_type (version, key) == TYPE_INDIRECT)
+	return "IND";
+    return "UNKNOWN";
+}
+
+
+/* %k */
+static void sprintf_le_key (char * buf, struct key * key)
+{
+  if (key)
+    sprintf (buf, "[%d %d %s %s]", le32_to_cpu (key->k_dir_id),
+	     le32_to_cpu (key->k_objectid), le_offset (key), le_type (key));
+  else
+    sprintf (buf, "[NULL]");
+}
+
+
+/* %K */
+static void sprintf_cpu_key (char * buf, struct cpu_key * key)
+{
+  if (key)
+    sprintf (buf, "[%d %d %s %s]", key->on_disk_key.k_dir_id,
+	     key->on_disk_key.k_objectid, reiserfs_cpu_offset (key),
+             cpu_type (key));
+  else
+    sprintf (buf, "[NULL]");
+}
+
+static void sprintf_de_head( char *buf, struct reiserfs_de_head *deh )
+{
+    if( deh )
+        sprintf( buf, "[offset=%d dir_id=%d objectid=%d location=%d state=%04x]", deh_offset(deh), deh_dir_id(deh),
+                 deh_objectid(deh), deh_location(deh), deh_state(deh) );
+    else
+        sprintf( buf, "[NULL]" );
+
+}
+
+static void sprintf_item_head (char * buf, struct item_head * ih)
+{
+    if (ih) {
+	sprintf (buf, "%s", (ih_version (ih) == KEY_FORMAT_3_6) ? "*3.6* " : "*3.5*");
+	sprintf_le_key (buf + strlen (buf), &(ih->ih_key));
+	sprintf (buf + strlen (buf), ", item_len %d, item_location %d, "
+		 "free_space(entry_count) %d",
+		 ih_item_len(ih), ih_location(ih), ih_free_space (ih));
+    } else
+	sprintf (buf, "[NULL]");
+}
+
+
+static void sprintf_direntry (char * buf, struct reiserfs_dir_entry * de)
+{
+  char name[20];
+
+  memcpy (name, de->de_name, de->de_namelen > 19 ? 19 : de->de_namelen);
+  name [de->de_namelen > 19 ? 19 : de->de_namelen] = 0;
+  sprintf (buf, "\"%s\"==>[%d %d]", name, de->de_dir_id, de->de_objectid);
+}
+
+
+static void sprintf_block_head (char * buf, struct buffer_head * bh)
+{
+  sprintf (buf, "level=%d, nr_items=%d, free_space=%d rdkey ",
+	   B_LEVEL (bh), B_NR_ITEMS (bh), B_FREE_SPACE (bh));
+}
+
+
+static void sprintf_buffer_head (char * buf, struct buffer_head * bh) 
+{
+  sprintf (buf, "dev %s, size %d, blocknr %ld, count %d, list %d, state 0x%lx, page %p, (%s, %s, %s)",
+	   kdevname (bh->b_dev), bh->b_size, bh->b_blocknr, atomic_read (&(bh->b_count)), bh->b_list,
+	   bh->b_state, bh->b_page,
+	   buffer_uptodate (bh) ? "UPTODATE" : "!UPTODATE",
+	   buffer_dirty (bh) ? "DIRTY" : "CLEAN",
+	   buffer_locked (bh) ? "LOCKED" : "UNLOCKED");
+}
+
+
+static void sprintf_disk_child (char * buf, struct disk_child * dc)
+{
+  sprintf (buf, "[dc_number=%d, dc_size=%u]", dc_block_number(dc), dc_size(dc));
+}
+
+
+static char * is_there_reiserfs_struct (char * fmt, int * what, int * skip)
+{
+  char * k = fmt;
+
+  *skip = 0;
+  
+  while ((k = strchr (k, '%')) != NULL)
+  {
+    if (k[1] == 'k' || k[1] == 'K' || k[1] == 'h' || k[1] == 't' ||
+	      k[1] == 'z' || k[1] == 'b' || k[1] == 'y' || k[1] == 'a' ) {
+      *what = k[1];
+      break;
+    }
+    (*skip) ++;
+    k ++;
+  }
+  return k;
+}
+
+
+/* debugging reiserfs we used to print out a lot of different
+   variables, like keys, item headers, buffer heads etc. Values of
+   most fields matter. So it took a long time just to write
+   appropriative printk. With this reiserfs_warning you can use format
+   specification for complex structures like you used to do with
+   printfs for integers, doubles and pointers. For instance, to print
+   out key structure you have to write just: 
+   reiserfs_warning (NULL, "bad key %k", key); 
+   instead of 
+   printk ("bad key %lu %lu %lu %lu", key->k_dir_id, key->k_objectid, 
+           key->k_offset, key->k_uniqueness); 
+   Also if you'd specify a pointer to fs super block as the first argument,
+   device name will be prepended to the output.
+*/
+
+
+static void
+prepare_error_buf( const char *fmt, va_list args )
+{
+    char * fmt1 = fmt_buf;
+    char * k;
+    char * p = error_buf;
+    int i, j, what, skip;
+
+    strcpy (fmt1, fmt);
+
+    while( (k = is_there_reiserfs_struct( fmt1, &what, &skip )) != NULL )
+    {
+        *k = 0;
+
+        p += vsprintf (p, fmt1, args);
+
+        for (i = 0; i < skip; i ++)
+            j = va_arg (args, int);
+
+        switch (what) {
+        case 'k':
+            sprintf_le_key (p, va_arg(args, struct key *));
+            break;
+        case 'K':
+            sprintf_cpu_key (p, va_arg(args, struct cpu_key *));
+            break;
+        case 'h':
+            sprintf_item_head (p, va_arg(args, struct item_head *));
+            break;
+        case 't':
+            sprintf_direntry (p, va_arg(args, struct reiserfs_dir_entry *));
+            break;
+        case 'y':
+            sprintf_disk_child (p, va_arg(args, struct disk_child *));
+            break;
+        case 'z':
+            sprintf_block_head (p, va_arg(args, struct buffer_head *));
+            break;
+        case 'b':
+            sprintf_buffer_head (p, va_arg(args, struct buffer_head *));
+            break;
+        case 'a':
+            sprintf_de_head (p, va_arg(args, struct reiserfs_de_head *));
+            break;
+        }
+
+        p += strlen (p);
+        fmt1 = k + 2;
+    }
+    vsprintf (p, fmt1, args);
+
+}
+
+
+/* in addition to usual conversion specifiers this accepts reiserfs
+   specific conversion specifiers: 
+   %k to print little endian key, 
+   %K to print cpu key, 
+   %h to print item_head,
+   %t to print directory entry 
+   %z to print block head (arg must be struct buffer_head *
+   %b to print buffer_head
+*/
+
+#define do_reiserfs_warning(fmt)\
+{\
+    va_list args;\
+    va_start( args, fmt );\
+    prepare_error_buf( fmt, args );\
+    va_end( args );\
+}
+
+void reiserfs_warning (struct super_block * sb, const char * fmt, ...)
+{
+  do_reiserfs_warning(fmt);
+  /* console_print (error_buf); */
+  if (sb)
+    printk (KERN_WARNING "%s:", bdevname(sb->s_dev));
+  else
+    printk (KERN_WARNING);
+
+  printk ("%s", error_buf);
+}
+
+void reiserfs_debug (struct super_block *s, int level, const char * fmt, ...)
+{
+#ifdef CONFIG_REISERFS_CHECK
+  do_reiserfs_warning(fmt);
+  printk (KERN_DEBUG "%s: %s", bdevname(s->s_dev), error_buf);
+#else
+  ; 
+#endif
+}
+
+/* The format:
+
+           maintainer-errorid: [function-name:] message
+
+    where errorid is unique to the maintainer and function-name is
+    optional, is recommended, so that anyone can easily find the bug
+    with a simple grep for the short to type string
+    maintainer-errorid.  Don't bother with reusing errorids, there are
+    lots of numbers out there.
+
+    Example: 
+    
+    reiserfs_panic(
+	p_sb, "reiser-29: reiserfs_new_blocknrs: "
+	"one of search_start or rn(%d) is equal to MAX_B_NUM,"
+	"which means that we are optimizing location based on the bogus location of a temp buffer (%p).", 
+	rn, bh
+    );
+
+    Regular panic()s sometimes clear the screen before the message can
+    be read, thus the need for the while loop.  
+
+    Numbering scheme for panic used by Vladimir and Anatoly( Hans completely ignores this scheme, and considers it
+    pointless complexity):
+
+    panics in reiserfs_fs.h have numbers from 1000 to 1999
+    super.c				        2000 to 2999
+    preserve.c (unused)			    3000 to 3999
+    bitmap.c				    4000 to 4999
+    stree.c				        5000 to 5999
+    prints.c				    6000 to 6999
+    namei.c                     7000 to 7999
+    fix_nodes.c                 8000 to 8999
+    dir.c                       9000 to 9999
+	lbalance.c					10000 to 10999
+	ibalance.c		11000 to 11999 not ready
+	do_balan.c		12000 to 12999
+	inode.c			13000 to 13999
+	file.c			14000 to 14999
+    objectid.c                       15000 - 15999
+    buffer.c                         16000 - 16999
+    symlink.c                        17000 - 17999
+
+   .  */
+
+
+#ifdef CONFIG_REISERFS_CHECK
+extern struct tree_balance * cur_tb;
+#endif
+
+void reiserfs_panic (struct super_block * sb, const char * fmt, ...)
+{
+  show_reiserfs_locks() ;
+  do_reiserfs_warning(fmt);
+  printk ( KERN_EMERG "%s (device %s)\n", error_buf, bdevname(sb->s_dev));
+  BUG ();
+
+  /* this is not actually called, but makes reiserfs_panic() "noreturn" */
+  panic ("REISERFS: panic (device %s): %s\n",
+	 sb ? kdevname(sb->s_dev) : "sb == 0", error_buf);
+}
+
+
+void print_virtual_node (struct virtual_node * vn)
+{
+    int i;
+    struct virtual_item * vi;
+
+    printk ("VIRTUAL NODE CONTAINS %d items, has size %d,%s,%s, ITEM_POS=%d POS_IN_ITEM=%d MODE=\'%c\'\n",
+	    vn->vn_nr_item, vn->vn_size,
+	    (vn->vn_vi[0].vi_type & VI_TYPE_LEFT_MERGEABLE )? "left mergeable" : "", 
+	    (vn->vn_vi[vn->vn_nr_item - 1].vi_type & VI_TYPE_RIGHT_MERGEABLE) ? "right mergeable" : "",
+	    vn->vn_affected_item_num, vn->vn_pos_in_item, vn->vn_mode);
+    
+    vi = vn->vn_vi;
+    for (i = 0; i < vn->vn_nr_item; i ++, vi ++)
+	op_print_vi (vi);
+	
+}
+
+
+void print_path (struct tree_balance * tb, struct path * path)
+{
+    int h = 0;
+    struct buffer_head * bh;
+    
+    if (tb) {
+	while (tb->insert_size[h]) {
+	    bh = PATH_H_PBUFFER (path, h);
+	    printk ("block %lu (level=%d), position %d\n", bh ? bh->b_blocknr : 0,
+		    bh ? B_LEVEL (bh) : 0, PATH_H_POSITION (path, h));
+	    h ++;
+	}
+  } else {
+      int offset = path->path_length;
+      struct buffer_head * bh;
+      printk ("Offset    Bh     (b_blocknr, b_count) Position Nr_item\n");
+      while ( offset > ILLEGAL_PATH_ELEMENT_OFFSET ) {
+	  bh = PATH_OFFSET_PBUFFER (path, offset);
+	  printk ("%6d %10p (%9lu, %7d) %8d %7d\n", offset, 
+		  bh, bh ? bh->b_blocknr : 0, bh ? atomic_read (&(bh->b_count)) : 0,
+		  PATH_OFFSET_POSITION (path, offset), bh ? B_NR_ITEMS (bh) : -1);
+	  
+	  offset --;
+      }
+  }
+
+}
+
+
+/* this prints internal nodes (4 keys/items in line) (dc_number,
+   dc_size)[k_dirid, k_objectid, k_offset, k_uniqueness](dc_number,
+   dc_size)...*/
+static int print_internal (struct buffer_head * bh, int first, int last)
+{
+    struct key * key;
+    struct disk_child * dc;
+    int i;
+    int from, to;
+    
+    if (!B_IS_KEYS_LEVEL (bh))
+	return 1;
+
+    check_internal (bh);
+    
+    if (first == -1) {
+	from = 0;
+	to = B_NR_ITEMS (bh);
+    } else {
+	from = first;
+	to = last < B_NR_ITEMS (bh) ? last : B_NR_ITEMS (bh);
+    }
+
+    reiserfs_warning (NULL, "INTERNAL NODE (%ld) contains %z\n",  bh->b_blocknr, bh);
+    
+    dc = B_N_CHILD (bh, from);
+    reiserfs_warning (NULL, "PTR %d: %y ", from, dc);
+    
+    for (i = from, key = B_N_PDELIM_KEY (bh, from), dc ++; i < to; i ++, key ++, dc ++) {
+	reiserfs_warning (NULL, "KEY %d: %k PTR %d: %y ", i, key, i + 1, dc);
+	if (i && i % 4 == 0)
+	    printk ("\n");
+    }
+    printk ("\n");
+    return 0;
+}
+
+
+
+
+
+static int print_leaf (struct buffer_head * bh, int print_mode, int first, int last)
+{
+    struct block_head * blkh;
+    struct item_head * ih;
+    int i, nr;
+    int from, to;
+
+    if (!B_IS_ITEMS_LEVEL (bh))
+	return 1;
+
+    check_leaf (bh);
+
+    blkh = B_BLK_HEAD (bh);
+    ih = B_N_PITEM_HEAD (bh,0);
+    nr = blkh_nr_item(blkh);
+
+    printk ("\n===================================================================\n");
+    reiserfs_warning (NULL, "LEAF NODE (%ld) contains %z\n", bh->b_blocknr, bh);
+
+    if (!(print_mode & PRINT_LEAF_ITEMS)) {
+	reiserfs_warning (NULL, "FIRST ITEM_KEY: %k, LAST ITEM KEY: %k\n",
+			  &(ih->ih_key), &((ih + nr - 1)->ih_key));
+	return 0;
+    }
+
+    if (first < 0 || first > nr - 1) 
+	from = 0;
+    else 
+	from = first;
+
+    if (last < 0 || last > nr )
+	to = nr;
+    else
+	to = last;
+
+    ih += from;
+    printk ("-------------------------------------------------------------------------------\n");
+    printk ("|##|   type    |           key           | ilen | free_space | version | loc  |\n");
+    for (i = from; i < to; i++, ih ++) {
+	printk ("-------------------------------------------------------------------------------\n");
+	reiserfs_warning (NULL, "|%2d| %h |\n", i, ih);
+	if (print_mode & PRINT_LEAF_ITEMS)
+	    op_print_item (ih, B_I_PITEM (bh, ih));
+    }
+
+    printk ("===================================================================\n");
+
+    return 0;
+}
+
+char * reiserfs_hashname(int code)
+{
+    if ( code == YURA_HASH)
+	return "rupasov";
+    if ( code == TEA_HASH)
+	return "tea";
+    if ( code == R5_HASH)
+	return "r5";
+
+    return "unknown";
+}
+/* return 1 if this is not super block */
+static int print_super_block (struct buffer_head * bh)
+{
+    struct reiserfs_super_block * rs = (struct reiserfs_super_block *)(bh->b_data);
+    int skipped, data_blocks;
+    char *version;
+    
+
+    if (is_reiserfs_3_5(rs)) {
+        version = "3.5";
+    } else if (is_reiserfs_3_6(rs)) {
+        version = "3.6";
+    } else if (is_reiserfs_jr(rs)) {
+      version = ((sb_version(rs) == REISERFS_VERSION_2) ?
+ 		 "3.6" : "3.5");  
+    } else {
+	return 1;
+    }
+
+    printk ("%s\'s super block in block %ld\n======================\n",
+            kdevname (bh->b_dev), bh->b_blocknr);
+    printk ("Reiserfs version %s\n", version );
+    printk ("Block count %u\n", sb_block_count(rs));
+    printk ("Blocksize %d\n", sb_blocksize(rs));
+    printk ("Free blocks %u\n", sb_free_blocks(rs));
+    // FIXME: this would be confusing if
+    // someone stores reiserfs super block in some data block ;)
+//    skipped = (bh->b_blocknr * bh->b_size) / sb_blocksize(rs);
+    skipped = bh->b_blocknr;
+    data_blocks = sb_block_count(rs) - skipped - 1 - sb_bmap_nr(rs) -
+	    (!is_reiserfs_jr(rs) ? sb_jp_journal_size(rs) + 1 : sb_reserved_for_journal(rs)) -	    
+	    sb_free_blocks(rs);
+    printk ("Busy blocks (skipped %d, bitmaps - %d, journal (or reserved) blocks - %d\n"
+	    "1 super block, %d data blocks\n", 
+	    skipped, sb_bmap_nr(rs), (!is_reiserfs_jr(rs) ? (sb_jp_journal_size(rs) + 1) :
+				      sb_reserved_for_journal(rs)) , data_blocks);
+    printk ("Root block %u\n", sb_root_block(rs));
+    printk ("Journal block (first) %d\n", sb_jp_journal_1st_block(rs));
+    printk ("Journal dev %d\n", sb_jp_journal_dev(rs));
+    printk ("Journal orig size %d\n", sb_jp_journal_size(rs));
+    printk ("FS state %d\n", sb_fs_state(rs));
+    printk ("Hash function \"%s\"\n",
+            reiserfs_hashname(sb_hash_function_code(rs)));
+
+    printk ("Tree height %d\n", sb_tree_height(rs));
+    return 0;
+}
+
+
+static int print_desc_block (struct buffer_head * bh)
+{
+    struct reiserfs_journal_desc * desc;
+
+    desc = (struct reiserfs_journal_desc *)(bh->b_data);
+    if (memcmp(desc->j_magic, JOURNAL_DESC_MAGIC, 8))
+	return 1;
+
+    printk ("Desc block %lu (j_trans_id %d, j_mount_id %d, j_len %d)",
+	    bh->b_blocknr, desc->j_trans_id, desc->j_mount_id, desc->j_len);
+
+    return 0;
+}
+
+
+void print_block (struct buffer_head * bh, ...)//int print_mode, int first, int last)
+{
+    va_list args;
+    int mode, first, last;
+
+    va_start (args, bh);
+
+    if ( ! bh ) {
+	printk("print_block: buffer is NULL\n");
+	return;
+    }
+
+    mode = va_arg (args, int);
+    first = va_arg (args, int);
+    last = va_arg (args, int);
+    if (print_leaf (bh, mode, first, last))
+	if (print_internal (bh, first, last))
+	    if (print_super_block (bh))
+		if (print_desc_block (bh))
+		    printk ("Block %ld contains unformatted data\n", bh->b_blocknr);
+}
+
+
+
+char print_tb_buf[2048];
+
+/* this stores initial state of tree balance in the print_tb_buf */
+void store_print_tb (struct tree_balance * tb)
+{
+    int h = 0;
+    int i;
+    struct buffer_head * tbSh, * tbFh;
+
+    if (!tb)
+	return;
+
+    sprintf (print_tb_buf, "\n"
+	     "BALANCING %d\n"
+	     "MODE=%c, ITEM_POS=%d POS_IN_ITEM=%d\n" 
+	     "=====================================================================\n"
+	     "* h *    S    *    L    *    R    *   F   *   FL  *   FR  *  CFL  *  CFR  *\n",
+	     tb->tb_sb->u.reiserfs_sb.s_do_balance,
+	     tb->tb_mode, PATH_LAST_POSITION (tb->tb_path), tb->tb_path->pos_in_item);
+  
+    for (h = 0; h < sizeof(tb->insert_size) / sizeof (tb->insert_size[0]); h ++) {
+	if (PATH_H_PATH_OFFSET (tb->tb_path, h) <= tb->tb_path->path_length && 
+	    PATH_H_PATH_OFFSET (tb->tb_path, h) > ILLEGAL_PATH_ELEMENT_OFFSET) {
+	    tbSh = PATH_H_PBUFFER (tb->tb_path, h);
+	    tbFh = PATH_H_PPARENT (tb->tb_path, h);
+	} else {
+	    tbSh = 0;
+	    tbFh = 0;
+	}
+	sprintf (print_tb_buf + strlen (print_tb_buf),
+		 "* %d * %3ld(%2d) * %3ld(%2d) * %3ld(%2d) * %5ld * %5ld * %5ld * %5ld * %5ld *\n",
+		 h, 
+		 (tbSh) ? (tbSh->b_blocknr):(-1),
+		 (tbSh) ? atomic_read (&(tbSh->b_count)) : -1,
+		 (tb->L[h]) ? (tb->L[h]->b_blocknr):(-1),
+		 (tb->L[h]) ? atomic_read (&(tb->L[h]->b_count)) : -1,
+		 (tb->R[h]) ? (tb->R[h]->b_blocknr):(-1),
+		 (tb->R[h]) ? atomic_read (&(tb->R[h]->b_count)) : -1,
+		 (tbFh) ? (tbFh->b_blocknr):(-1),
+		 (tb->FL[h]) ? (tb->FL[h]->b_blocknr):(-1),
+		 (tb->FR[h]) ? (tb->FR[h]->b_blocknr):(-1),
+		 (tb->CFL[h]) ? (tb->CFL[h]->b_blocknr):(-1),
+		 (tb->CFR[h]) ? (tb->CFR[h]->b_blocknr):(-1));
+    }
+
+    sprintf (print_tb_buf + strlen (print_tb_buf), 
+	     "=====================================================================\n"
+	     "* h * size * ln * lb * rn * rb * blkn * s0 * s1 * s1b * s2 * s2b * curb * lk * rk *\n"
+	     "* 0 * %4d * %2d * %2d * %2d * %2d * %4d * %2d * %2d * %3d * %2d * %3d * %4d * %2d * %2d *\n",
+	     tb->insert_size[0], tb->lnum[0], tb->lbytes, tb->rnum[0],tb->rbytes, tb->blknum[0], 
+	     tb->s0num, tb->s1num,tb->s1bytes,  tb->s2num, tb->s2bytes, tb->cur_blknum, tb->lkey[0], tb->rkey[0]);
+
+    /* this prints balance parameters for non-leaf levels */
+    h = 0;
+    do {
+	h++;
+	sprintf (print_tb_buf + strlen (print_tb_buf),
+		 "* %d * %4d * %2d *    * %2d *    * %2d *\n",
+		h, tb->insert_size[h], tb->lnum[h], tb->rnum[h], tb->blknum[h]);
+    } while (tb->insert_size[h]);
+
+    sprintf (print_tb_buf + strlen (print_tb_buf), 
+	     "=====================================================================\n"
+	     "FEB list: ");
+
+    /* print FEB list (list of buffers in form (bh (b_blocknr, b_count), that will be used for new nodes) */
+    h = 0;
+    for (i = 0; i < sizeof (tb->FEB) / sizeof (tb->FEB[0]); i ++)
+	sprintf (print_tb_buf + strlen (print_tb_buf),
+		 "%p (%lu %d)%s", tb->FEB[i], tb->FEB[i] ? tb->FEB[i]->b_blocknr : 0,
+		 tb->FEB[i] ? atomic_read (&(tb->FEB[i]->b_count)) : 0, 
+		 (i == sizeof (tb->FEB) / sizeof (tb->FEB[0]) - 1) ? "\n" : ", ");
+
+    sprintf (print_tb_buf + strlen (print_tb_buf), 
+	     "======================== the end ====================================\n");
+}
+
+void print_cur_tb (char * mes)
+{
+    printk ("%s\n%s", mes, print_tb_buf);
+}
+
+static void check_leaf_block_head (struct buffer_head * bh)
+{
+  struct block_head * blkh;
+  int nr;
+
+  blkh = B_BLK_HEAD (bh);
+  nr = blkh_nr_item(blkh);
+  if ( nr > (bh->b_size - BLKH_SIZE) / IH_SIZE)
+    reiserfs_panic (0, "vs-6010: check_leaf_block_head: invalid item number %z", bh);
+  if ( blkh_free_space(blkh) > 
+      bh->b_size - BLKH_SIZE - IH_SIZE * nr )
+    reiserfs_panic (0, "vs-6020: check_leaf_block_head: invalid free space %z", bh);
+    
+}
+
+static void check_internal_block_head (struct buffer_head * bh)
+{
+    struct block_head * blkh;
+    
+    blkh = B_BLK_HEAD (bh);
+    if (!(B_LEVEL (bh) > DISK_LEAF_NODE_LEVEL && B_LEVEL (bh) <= MAX_HEIGHT))
+	reiserfs_panic (0, "vs-6025: check_internal_block_head: invalid level %z", bh);
+
+    if (B_NR_ITEMS (bh) > (bh->b_size - BLKH_SIZE) / IH_SIZE)
+	reiserfs_panic (0, "vs-6030: check_internal_block_head: invalid item number %z", bh);
+
+    if (B_FREE_SPACE (bh) != 
+	bh->b_size - BLKH_SIZE - KEY_SIZE * B_NR_ITEMS (bh) - DC_SIZE * (B_NR_ITEMS (bh) + 1))
+	reiserfs_panic (0, "vs-6040: check_internal_block_head: invalid free space %z", bh);
+
+}
+
+
+void check_leaf (struct buffer_head * bh)
+{
+    int i;
+    struct item_head * ih;
+
+    if (!bh)
+	return;
+    check_leaf_block_head (bh);
+    for (i = 0, ih = B_N_PITEM_HEAD (bh, 0); i < B_NR_ITEMS (bh); i ++, ih ++)
+	op_check_item (ih, B_I_PITEM (bh, ih));
+}
+
+
+void check_internal (struct buffer_head * bh)
+{
+  if (!bh)
+    return;
+  check_internal_block_head (bh);
+}
+
+
+void print_statistics (struct super_block * s)
+{
+
+  /*
+  printk ("reiserfs_put_super: session statistics: balances %d, fix_nodes %d, \
+bmap with search %d, without %d, dir2ind %d, ind2dir %d\n",
+	  s->u.reiserfs_sb.s_do_balance, s->u.reiserfs_sb.s_fix_nodes,
+	  s->u.reiserfs_sb.s_bmaps, s->u.reiserfs_sb.s_bmaps_without_search,
+	  s->u.reiserfs_sb.s_direct2indirect, s->u.reiserfs_sb.s_indirect2direct);
+  */
+
+}
diff --git a/fs/reiserfs/procfs.c b/fs/reiserfs/procfs.c
new file mode 100644
index 00000000000000..b12a8eac166a45
--- /dev/null
+++ b/fs/reiserfs/procfs.c
@@ -0,0 +1,743 @@
+/* -*- linux-c -*- */
+/* fs/reiserfs/procfs.c */
+/*
+ * Copyright 2000-2002 by Hans Reiser, licensing governed by reiserfs/README
+ */
+
+/* proc info support a la one created by Sizif@Botik.RU for PGC */
+
+/* $Id: procfs.c,v 1.1.8.2 2001/07/15 17:08:42 god Exp $ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <asm/uaccess.h>
+#include <linux/reiserfs_fs.h>
+#include <linux/reiserfs_fs_sb.h>
+#include <linux/smp_lock.h>
+#include <linux/locks.h>
+#include <linux/init.h>
+#include <linux/proc_fs.h>
+
+#if defined( REISERFS_PROC_INFO )
+
+/*
+ * LOCKING:
+ *
+ * We rely on new Alexander Viro's super-block locking.
+ *
+ */
+
+static struct super_block *procinfo_prologue( kdev_t dev )
+{
+	struct super_block *result;
+
+	/* get super-block by device */
+	result = get_super( dev );
+	if( result != NULL ) {
+		if( !reiserfs_is_super( result ) ) {
+			printk( KERN_DEBUG "reiserfs: procfs-52: "
+				"non-reiserfs super found\n" );
+			drop_super( result );
+			result = NULL;
+		}
+	} else
+		printk( KERN_DEBUG "reiserfs: procfs-74: "
+			"race between procinfo and umount\n" );
+	return result;
+}
+
+int procinfo_epilogue( struct super_block *super )
+{
+	drop_super( super );
+	return 0;
+}
+
+int reiserfs_proc_tail( int len, char *buffer, char **start, 
+			off_t offset, int count, int *eof )
+{
+	/* this is black procfs magic */
+	if( offset >= len ) {
+		*start = buffer;
+		*eof = 1;
+		return 0;
+	}
+	*start = buffer + offset;
+	if( ( len -= offset ) > count ) {
+		return count;
+	}
+	*eof = 1;
+	return len;
+}
+
+int reiserfs_version_in_proc( char *buffer, char **start, off_t offset,
+			      int count, int *eof, void *data )
+{
+	int len = 0;
+	struct super_block *sb;
+	char *format;
+    
+	sb = procinfo_prologue( ( kdev_t ) ( long ) data );
+	if( sb == NULL )
+		return -ENOENT;
+	if ( sb->u.reiserfs_sb.s_properties & (1 << REISERFS_3_6) ) {
+		format = "3.6";
+	} else if ( sb->u.reiserfs_sb.s_properties & (1 << REISERFS_3_5) ) {
+		format = "3.5";
+	} else {
+		format = "unknown";
+	}
+	len += sprintf( &buffer[ len ], "%s format\twith checks %s\n",
+			format,
+#if defined( CONFIG_REISERFS_CHECK )
+			"on"
+#else
+			"off"
+#endif
+		);
+	procinfo_epilogue( sb );
+	return reiserfs_proc_tail( len, buffer, start, offset, count, eof );
+}
+
+int reiserfs_global_version_in_proc( char *buffer, char **start, off_t offset,
+				     int count, int *eof, void *data )
+{
+	int len = 0;
+	return reiserfs_proc_tail( len, buffer, start, offset, count, eof );
+}
+
+#define SF( x ) ( r -> x )
+#define SFP( x ) SF( s_proc_info_data.x )
+#define SFPL( x ) SFP( x[ level ] )
+#define SFPF( x ) SFP( scan_bitmap.x )
+#define SFPJ( x ) SFP( journal.x )
+
+#define D2C( x ) le16_to_cpu( x )
+#define D4C( x ) le32_to_cpu( x )
+#define DF( x ) D2C( rs -> s_v1.x )
+#define DFL( x ) D4C( rs -> s_v1.x )
+#define DP( x ) D2C( rs -> x )
+#define DPL( x ) D4C( rs -> x )
+
+#define objectid_map( s, rs ) (old_format_only (s) ?				\
+                         (__u32 *)((struct reiserfs_super_block_v1 *)rs + 1) :	\
+			 (__u32 *)(rs + 1))
+#define MAP( i ) D4C( objectid_map( sb, rs )[ i ] )
+
+#define DJF( x ) le32_to_cpu( rs -> x )
+#define DJV( x ) le32_to_cpu( s_v1 -> x )
+#define DJP( x ) le32_to_cpu( jp -> x ) 
+#define JF( x ) ( r -> s_journal -> x )
+
+int reiserfs_super_in_proc( char *buffer, char **start, off_t offset,
+			    int count, int *eof, void *data )
+{
+	struct super_block *sb;
+	struct reiserfs_sb_info *r;
+	int len = 0;
+    
+	sb = procinfo_prologue( ( kdev_t ) ( long ) data );
+	if( sb == NULL )
+		return -ENOENT;
+	r = &sb->u.reiserfs_sb;
+	len += sprintf( &buffer[ len ], 
+			"state: \t%s\n"
+			"mount options: \t%s%s%s%s%s%s%s%s%s%s%s%s\n"
+			"gen. counter: \t%i\n"
+			"s_kmallocs: \t%i\n"
+			"s_disk_reads: \t%i\n"
+			"s_disk_writes: \t%i\n"
+			"s_fix_nodes: \t%i\n"
+			"s_do_balance: \t%i\n"
+			"s_unneeded_left_neighbor: \t%i\n"
+			"s_good_search_by_key_reada: \t%i\n"
+			"s_bmaps: \t%i\n"
+			"s_bmaps_without_search: \t%i\n"
+			"s_direct2indirect: \t%i\n"
+			"s_indirect2direct: \t%i\n"
+			"\n"
+			"max_hash_collisions: \t%i\n"
+
+			"breads: \t%lu\n"
+			"bread_misses: \t%lu\n"
+
+			"search_by_key: \t%lu\n"
+			"search_by_key_fs_changed: \t%lu\n"
+			"search_by_key_restarted: \t%lu\n"
+			
+			"insert_item_restarted: \t%lu\n"
+			"paste_into_item_restarted: \t%lu\n"
+			"cut_from_item_restarted: \t%lu\n"
+			"delete_solid_item_restarted: \t%lu\n"
+			"delete_item_restarted: \t%lu\n"
+
+			"leaked_oid: \t%lu\n"
+			"leaves_removable: \t%lu\n",
+
+			SF( s_mount_state ) == REISERFS_VALID_FS ?
+			"REISERFS_VALID_FS" : "REISERFS_ERROR_FS",
+			reiserfs_r5_hash( sb ) ? "FORCE_R5 " : "",
+			reiserfs_rupasov_hash( sb ) ? "FORCE_RUPASOV " : "",
+			reiserfs_tea_hash( sb ) ? "FORCE_TEA " : "",
+			reiserfs_hash_detect( sb ) ? "DETECT_HASH " : "",
+			reiserfs_no_border( sb ) ? "NO_BORDER " : "BORDER ",
+			reiserfs_no_unhashed_relocation( sb ) ? "NO_UNHASHED_RELOCATION " : "",
+			reiserfs_hashed_relocation( sb ) ? "UNHASHED_RELOCATION " : "",
+			reiserfs_test4( sb ) ? "TEST4 " : "",
+			have_large_tails( sb ) ? "TAILS " : have_small_tails(sb)?"SMALL_TAILS ":"NO_TAILS ",
+			replay_only( sb ) ? "REPLAY_ONLY " : "",
+			reiserfs_dont_log( sb ) ? "DONT_LOG " : "LOG ",
+			convert_reiserfs( sb ) ? "CONV " : "",
+
+			atomic_read( &r -> s_generation_counter ),
+			SF( s_kmallocs ),
+			SF( s_disk_reads ),
+			SF( s_disk_writes ),
+			SF( s_fix_nodes ),
+			SF( s_do_balance ),
+			SF( s_unneeded_left_neighbor ),
+			SF( s_good_search_by_key_reada ),
+			SF( s_bmaps ),
+			SF( s_bmaps_without_search ),
+			SF( s_direct2indirect ),
+			SF( s_indirect2direct ),
+			SFP( max_hash_collisions ),
+			SFP( breads ),
+			SFP( bread_miss ),
+			SFP( search_by_key ),
+			SFP( search_by_key_fs_changed ),
+			SFP( search_by_key_restarted ),
+
+			SFP( insert_item_restarted ),
+			SFP( paste_into_item_restarted ),
+			SFP( cut_from_item_restarted ),
+			SFP( delete_solid_item_restarted ),
+			SFP( delete_item_restarted ),
+
+			SFP( leaked_oid ),
+			SFP( leaves_removable ) );
+
+	procinfo_epilogue( sb );
+	return reiserfs_proc_tail( len, buffer, start, offset, count, eof );
+}
+
+int reiserfs_per_level_in_proc( char *buffer, char **start, off_t offset,
+				int count, int *eof, void *data )
+{
+	struct super_block *sb;
+	struct reiserfs_sb_info *r;
+	int len = 0;
+	int level;
+	
+	sb = procinfo_prologue( ( kdev_t ) ( long ) data );
+	if( sb == NULL )
+		return -ENOENT;
+	r = &sb->u.reiserfs_sb;
+
+	len += sprintf( &buffer[ len ],
+			"level\t"
+			"     balances"
+			" [sbk:  reads"
+			"   fs_changed"
+			"   restarted]"
+			"   free space"
+			"        items"
+			"   can_remove"
+			"         lnum"
+			"         rnum"
+			"       lbytes"
+			"       rbytes"
+			"     get_neig"
+			" get_neig_res"
+			"  need_l_neig"
+			"  need_r_neig"
+			"\n"
+			
+		);
+
+	for( level = 0 ; level < MAX_HEIGHT ; ++ level ) {
+		if( len > PAGE_SIZE - 240 ) {
+			len += sprintf( &buffer[ len ], "... and more\n" );
+			break;
+		}
+		len += sprintf( &buffer[ len ], 
+				"%i\t"
+				" %12lu"
+				" %12lu"
+				" %12lu"
+				" %12lu"
+				" %12lu"
+				" %12lu"
+				" %12lu"
+				" %12li"
+				" %12li"
+				" %12li"
+				" %12li"
+				" %12lu"
+				" %12lu"
+				" %12lu"
+				" %12lu"
+				"\n",
+				level, 
+				SFPL( balance_at ),
+				SFPL( sbk_read_at ),
+				SFPL( sbk_fs_changed ),
+				SFPL( sbk_restarted ),
+				SFPL( free_at ),
+				SFPL( items_at ),
+				SFPL( can_node_be_removed ),
+				SFPL( lnum ),
+				SFPL( rnum ),
+				SFPL( lbytes ),
+				SFPL( rbytes ),
+				SFPL( get_neighbors ),
+				SFPL( get_neighbors_restart ),
+				SFPL( need_l_neighbor ),
+				SFPL( need_r_neighbor )
+			);
+	}
+
+	procinfo_epilogue( sb );
+	return reiserfs_proc_tail( len, buffer, start, offset, count, eof );
+}
+
+int reiserfs_bitmap_in_proc( char *buffer, char **start, off_t offset,
+			     int count, int *eof, void *data )
+{
+	struct super_block *sb;
+	struct reiserfs_sb_info *r = &sb->u.reiserfs_sb;
+	int len = 0;
+    
+	sb = procinfo_prologue( ( kdev_t ) ( long ) data );
+	if( sb == NULL )
+		return -ENOENT;
+	r = &sb->u.reiserfs_sb;
+
+	len += sprintf( &buffer[ len ], "free_block: %lu\n"
+			"  scan_bitmap:"
+			"          wait"
+			"          bmap"
+			"         retry"
+			"        stolen"
+			"  journal_hint"
+			"journal_nohint"
+			"\n"
+			" %14lu"
+			" %14lu"
+			" %14lu"
+			" %14lu"
+			" %14lu"
+			" %14lu"
+			" %14lu"
+			"\n",
+			SFP( free_block ),
+			SFPF( call ), 
+			SFPF( wait ), 
+			SFPF( bmap ),
+			SFPF( retry ),
+			SFPF( stolen ),
+			SFPF( in_journal_hint ),
+			SFPF( in_journal_nohint ) );
+
+	procinfo_epilogue( sb );
+	return reiserfs_proc_tail( len, buffer, start, offset, count, eof );
+}
+
+int reiserfs_on_disk_super_in_proc( char *buffer, char **start, off_t offset,
+				    int count, int *eof, void *data )
+{
+	struct super_block *sb;
+	struct reiserfs_sb_info *sb_info;
+	struct reiserfs_super_block *rs;
+	int hash_code;
+	int len = 0;
+    
+	sb = procinfo_prologue( ( kdev_t ) ( long ) data );
+	if( sb == NULL )
+		return -ENOENT;
+	sb_info = &sb->u.reiserfs_sb;
+	rs = sb_info -> s_rs;
+	hash_code = DFL( s_hash_function_code );
+
+	len += sprintf( &buffer[ len ], 
+			"block_count: \t%i\n"
+			"free_blocks: \t%i\n"
+			"root_block: \t%i\n"
+			"blocksize: \t%i\n"
+			"oid_maxsize: \t%i\n"
+			"oid_cursize: \t%i\n"
+			"umount_state: \t%i\n"
+			"magic: \t%10.10s\n"
+			"fs_state: \t%i\n"
+			"hash: \t%s\n"
+			"tree_height: \t%i\n"
+			"bmap_nr: \t%i\n"
+			"version: \t%i\n"
+			"reserved_for_journal: \t%i\n"
+			"inode_generation: \t%i\n"
+			"flags: \t%x[%s]\n",
+
+			DFL( s_block_count ),
+			DFL( s_free_blocks ),
+			DFL( s_root_block ),
+			DF( s_blocksize ),
+			DF( s_oid_maxsize ),
+			DF( s_oid_cursize ),
+			DF( s_umount_state ),
+			rs -> s_v1.s_magic,
+			DF( s_fs_state ),
+			hash_code == TEA_HASH ? "tea" :
+			( hash_code == YURA_HASH ) ? "rupasov" :
+			( hash_code == R5_HASH ) ? "r5" :
+			( hash_code == UNSET_HASH ) ? "unset" : "unknown",
+			DF( s_tree_height ),
+			DF( s_bmap_nr ),
+			DF( s_version ),
+			DF( s_reserved_for_journal ),
+			DPL( s_inode_generation ),
+			DPL( s_flags ),
+			(DPL( s_flags ) & reiserfs_attrs_cleared 
+			? "attrs_cleared" : "" ));
+
+	procinfo_epilogue( sb );
+	return reiserfs_proc_tail( len, buffer, start, offset, count, eof );
+}
+
+int reiserfs_oidmap_in_proc( char *buffer, char **start, off_t offset,
+			     int count, int *eof, void *data )
+{
+	struct super_block *sb;
+	struct reiserfs_sb_info *sb_info;
+	struct reiserfs_super_block *rs;
+	int i;
+	unsigned int mapsize;
+	unsigned long total_used;
+	int len = 0;
+	int exact;
+    
+	sb = procinfo_prologue( ( kdev_t ) ( long ) data );
+	if( sb == NULL )
+		return -ENOENT;
+	sb_info = &sb->u.reiserfs_sb;
+	rs = sb_info -> s_rs;
+	mapsize = le16_to_cpu( rs -> s_v1.s_oid_cursize );
+	total_used = 0;
+
+	for( i = 0 ; i < mapsize ; ++i ) {
+		__u32 right;
+
+		right = ( i == mapsize - 1 ) ? MAX_KEY_OBJECTID : MAP( i + 1 );
+		len += sprintf( &buffer[ len ], "%s: [ %x .. %x )\n",
+				( i & 1 ) ? "free" : "used", MAP( i ), right );
+		if( ! ( i & 1 ) ) {
+			total_used += right - MAP( i );
+		}
+		if( len > PAGE_SIZE - 100 ) {
+			len += sprintf( &buffer[ len ], "... and more\n" );
+			break;
+		}
+	}
+#if defined( REISERFS_USE_OIDMAPF )
+	if( sb_info -> oidmap.use_file && ( sb_info -> oidmap.mapf != NULL ) ) {
+		loff_t size;
+
+		size = sb_info -> oidmap.mapf -> f_dentry -> d_inode -> i_size;
+		total_used += size / sizeof( reiserfs_oidinterval_d_t );
+		exact = 1;
+	} else
+#endif
+	{
+		exact = ( i == mapsize );
+	}
+	len += sprintf( &buffer[ len ], "total: \t%i [%i/%i] used: %lu [%s]\n", 
+			i, 
+			mapsize, le16_to_cpu( rs -> s_v1.s_oid_maxsize ),
+			total_used, exact ? "exact" : "estimation" );
+
+	procinfo_epilogue( sb );
+	return reiserfs_proc_tail( len, buffer, start, offset, count, eof );
+}
+
+int reiserfs_journal_in_proc( char *buffer, char **start, off_t offset,
+			      int count, int *eof, void *data )
+{
+	struct super_block *sb;
+	struct reiserfs_sb_info *r;
+	struct reiserfs_super_block *rs;
+	struct journal_params *jp;	
+	int len = 0;
+    
+	sb = procinfo_prologue( ( kdev_t ) ( long ) data );
+	if( sb == NULL )
+		return -ENOENT;
+	r = &sb->u.reiserfs_sb;
+	rs = r -> s_rs;
+	jp = &rs->s_v1.s_journal;
+
+	len += sprintf( &buffer[ len ], 
+			/* on-disk fields */
+ 			"jp_journal_1st_block: \t%i\n"
+ 			"jp_journal_dev: \t%s[%x]\n"
+ 			"jp_journal_size: \t%i\n"
+ 			"jp_journal_trans_max: \t%i\n"
+ 			"jp_journal_magic: \t%i\n"
+ 			"jp_journal_max_batch: \t%i\n"
+ 			"jp_journal_max_commit_age: \t%i\n"
+			"jp_journal_max_trans_age: \t%i\n"
+			/* incore fields */
+			"j_1st_reserved_block: \t%i\n" 
+			"j_state: \t%li\n"			
+			"j_trans_id: \t%lu\n"
+			"j_mount_id: \t%lu\n"
+			"j_start: \t%lu\n"
+			"j_len: \t%lu\n"
+			"j_len_alloc: \t%lu\n"
+			"j_wcount: \t%i\n"
+			"j_bcount: \t%lu\n"
+			"j_first_unflushed_offset: \t%lu\n"
+			"j_last_flush_trans_id: \t%lu\n"
+			"j_trans_start_time: \t%li\n"
+			"j_journal_list_index: \t%i\n"
+			"j_list_bitmap_index: \t%i\n"
+			"j_must_wait: \t%i\n"
+			"j_next_full_flush: \t%i\n"
+			"j_next_async_flush: \t%i\n"
+			"j_cnode_used: \t%i\n"
+			"j_cnode_free: \t%i\n"
+			"\n"
+			/* reiserfs_proc_info_data_t.journal fields */
+			"in_journal: \t%12lu\n"
+			"in_journal_bitmap: \t%12lu\n"
+			"in_journal_reusable: \t%12lu\n"
+			"lock_journal: \t%12lu\n"
+			"lock_journal_wait: \t%12lu\n"
+			"journal_begin: \t%12lu\n"
+			"journal_relock_writers: \t%12lu\n"
+			"journal_relock_wcount: \t%12lu\n"
+			"mark_dirty: \t%12lu\n"
+			"mark_dirty_already: \t%12lu\n"
+			"mark_dirty_notjournal: \t%12lu\n"
+			"restore_prepared: \t%12lu\n"
+			"prepare: \t%12lu\n"
+			"prepare_retry: \t%12lu\n",
+
+                        DJP( jp_journal_1st_block ),
+                        DJP( jp_journal_dev ) == 0 ? "none" : bdevname(to_kdev_t(DJP( jp_journal_dev ))),
+                        DJP( jp_journal_dev ),
+                        DJP( jp_journal_size ),
+                        DJP( jp_journal_trans_max ),
+                        DJP( jp_journal_magic ),
+                        DJP( jp_journal_max_batch ),
+                        DJP( jp_journal_max_commit_age ),
+                        DJP( jp_journal_max_trans_age ),
+
+ 			JF( j_1st_reserved_block ),
+			JF( j_state ),			
+			JF( j_trans_id ),
+			JF( j_mount_id ),
+			JF( j_start ),
+			JF( j_len ),
+			JF( j_len_alloc ),
+			atomic_read( & r -> s_journal -> j_wcount ),
+			JF( j_bcount ),
+			JF( j_first_unflushed_offset ),
+			JF( j_last_flush_trans_id ),
+			JF( j_trans_start_time ),
+			JF( j_journal_list_index ),
+			JF( j_list_bitmap_index ),
+			JF( j_must_wait ),
+			JF( j_next_full_flush ),
+			JF( j_next_async_flush ),
+			JF( j_cnode_used ),
+			JF( j_cnode_free ),
+
+			SFPJ( in_journal ),
+			SFPJ( in_journal_bitmap ),
+			SFPJ( in_journal_reusable ),
+			SFPJ( lock_journal ),
+			SFPJ( lock_journal_wait ),
+			SFPJ( journal_being ),
+			SFPJ( journal_relock_writers ),
+			SFPJ( journal_relock_wcount ),
+			SFPJ( mark_dirty ),
+			SFPJ( mark_dirty_already ),
+			SFPJ( mark_dirty_notjournal ),
+			SFPJ( restore_prepared ),
+			SFPJ( prepare ),
+			SFPJ( prepare_retry )
+		);
+
+	procinfo_epilogue( sb );
+	return reiserfs_proc_tail( len, buffer, start, offset, count, eof );
+}
+
+
+static struct proc_dir_entry *proc_info_root = NULL;
+static const char *proc_info_root_name = "fs/reiserfs";
+
+int reiserfs_proc_info_init( struct super_block *sb )
+{
+	spin_lock_init( & __PINFO( sb ).lock );
+	sb->u.reiserfs_sb.procdir = proc_mkdir( bdevname( sb -> s_dev ), 
+						proc_info_root );
+	if( sb->u.reiserfs_sb.procdir ) {
+		sb->u.reiserfs_sb.procdir -> owner = THIS_MODULE;
+		return 0;
+	}
+	reiserfs_warning( sb, "reiserfs: cannot create /proc/%s/%s\n",
+			  proc_info_root_name, bdevname( sb -> s_dev ) );
+	return 1;
+}
+
+
+int reiserfs_proc_info_done( struct super_block *sb )
+{
+	spin_lock( & __PINFO( sb ).lock );
+	__PINFO( sb ).exiting = 1;
+	spin_unlock( & __PINFO( sb ).lock );
+	if ( proc_info_root ) {
+		remove_proc_entry( bdevname( sb -> s_dev ), proc_info_root );
+		sb->u.reiserfs_sb.procdir = NULL;
+	}
+	return 0;
+}
+
+/* Create /proc/fs/reiserfs/DEV/name and attach read procedure @func
+   to it.  Other parts of reiserfs use this function to make their
+   per-device statistics available via /proc */
+
+struct proc_dir_entry *reiserfs_proc_register( struct super_block *sb, 
+					       char *name, read_proc_t *func )
+{
+	return ( sb->u.reiserfs_sb.procdir ) ? create_proc_read_entry
+		( name, 0, sb->u.reiserfs_sb.procdir, func, 
+		  ( void * ) ( long ) sb -> s_dev ) : NULL;
+}
+
+void reiserfs_proc_unregister( struct super_block *sb, const char *name )
+{
+	remove_proc_entry( name, sb->u.reiserfs_sb.procdir );
+}
+
+struct proc_dir_entry *reiserfs_proc_register_global( char *name, 
+						      read_proc_t *func )
+{
+	return ( proc_info_root ) ? create_proc_read_entry( name, 0, 
+							    proc_info_root, 
+							    func, NULL ) : NULL;
+}
+
+void reiserfs_proc_unregister_global( const char *name )
+{
+	remove_proc_entry( name, proc_info_root );
+}
+
+int reiserfs_proc_info_global_init( void )
+{
+	if( proc_info_root == NULL ) {
+		proc_info_root = proc_mkdir( proc_info_root_name, 0 );
+		if( proc_info_root ) {
+			proc_info_root -> owner = THIS_MODULE;
+		} else {
+			reiserfs_warning( NULL, "reiserfs: cannot create /proc/%s\n",
+					  proc_info_root_name );
+			return 1;
+		}
+	}
+	return 0;
+}
+
+int reiserfs_proc_info_global_done( void )
+{
+	if ( proc_info_root != NULL ) {
+		proc_info_root = NULL;
+		remove_proc_entry( proc_info_root_name, 0 );
+	}
+	return 0;
+}
+
+/* REISERFS_PROC_INFO */
+#else
+
+int reiserfs_proc_info_init( struct super_block *sb ) { return 0; }
+int reiserfs_proc_info_done( struct super_block *sb ) { return 0; }
+
+struct proc_dir_entry *reiserfs_proc_register( struct super_block *sb, 
+					       char *name, 
+					       read_proc_t *func ) 
+{ return NULL; }
+
+void reiserfs_proc_unregister( struct super_block *sb, const char *name ) 
+{;}
+
+struct proc_dir_entry *reiserfs_proc_register_global( char *name, 
+						      read_proc_t *func )
+{ return NULL; }
+
+void reiserfs_proc_unregister_global( const char *name ) {;}
+
+int reiserfs_proc_info_global_init( void ) { return 0; }
+int reiserfs_proc_info_global_done( void ) { return 0; }
+
+int reiserfs_global_version_in_proc( char *buffer, char **start, 
+				     off_t offset,
+				     int count, int *eof, void *data )
+{ return 0; }
+
+int reiserfs_version_in_proc( char *buffer, char **start, off_t offset,
+			      int count, int *eof, void *data )
+{ return 0; }
+
+int reiserfs_super_in_proc( char *buffer, char **start, off_t offset,
+			    int count, int *eof, void *data )
+{ return 0; }
+
+int reiserfs_per_level_in_proc( char *buffer, char **start, off_t offset,
+				int count, int *eof, void *data )
+{ return 0; }
+
+int reiserfs_bitmap_in_proc( char *buffer, char **start, off_t offset,
+			     int count, int *eof, void *data )
+{ return 0; }
+
+int reiserfs_on_disk_super_in_proc( char *buffer, char **start, off_t offset,
+				    int count, int *eof, void *data )
+{ return 0; }
+
+int reiserfs_oidmap_in_proc( char *buffer, char **start, off_t offset,
+			     int count, int *eof, void *data )
+{ return 0; }
+
+int reiserfs_journal_in_proc( char *buffer, char **start, off_t offset,
+			      int count, int *eof, void *data )
+{ return 0; }
+
+/* REISERFS_PROC_INFO */
+#endif
+
+/*
+ * $Log: procfs.c,v $
+ * Revision 1.1.8.2  2001/07/15 17:08:42  god
+ *  . use get_super() in procfs.c
+ *  . remove remove_save_link() from reiserfs_do_truncate()
+ *
+ * I accept terms and conditions stated in the Legal Agreement
+ * (available at http://www.namesys.com/legalese.html)
+ *
+ * Revision 1.1.8.1  2001/07/11 16:48:50  god
+ * proc info support
+ *
+ * I accept terms and conditions stated in the Legal Agreement
+ * (available at http://www.namesys.com/legalese.html)
+ *
+ */
+
+/* 
+ * Make Linus happy.
+ * Local variables:
+ * c-indentation-style: "K&R"
+ * mode-name: "LC"
+ * c-basic-offset: 8
+ * tab-width: 8
+ * End:
+ */
diff --git a/fs/reiserfs/resize.c b/fs/reiserfs/resize.c
new file mode 100644
index 00000000000000..89aecc9d00c17a
--- /dev/null
+++ b/fs/reiserfs/resize.c
@@ -0,0 +1,170 @@
+/* 
+ * Copyright 2000-2002 by Hans Reiser, licensing governed by reiserfs/README
+ */
+ 
+/* 
+ * Written by Alexander Zarochentcev.
+ *
+ * The kernel part of the (on-line) reiserfs resizer.
+ */
+
+#include <linux/kernel.h>
+#include <linux/vmalloc.h>
+#include <linux/locks.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/reiserfs_fs.h>
+#include <linux/reiserfs_fs_sb.h>
+
+int reiserfs_resize (struct super_block * s, unsigned long block_count_new)
+{
+	struct reiserfs_super_block * sb;
+        struct reiserfs_bitmap_info *bitmap;
+	struct buffer_head * bh;
+	struct reiserfs_transaction_handle th;
+	unsigned int bmap_nr_new, bmap_nr;
+	unsigned int block_r_new, block_r;
+	
+	struct reiserfs_list_bitmap * jb;
+	struct reiserfs_list_bitmap jbitmap[JOURNAL_NUM_BITMAPS];
+	
+	unsigned long int block_count, free_blocks;
+	int i;
+	int copy_size ;
+
+	sb = SB_DISK_SUPER_BLOCK(s);
+
+	if (SB_BLOCK_COUNT(s) >= block_count_new) {
+		reiserfs_warning(s, "can\'t shrink filesystem on-line\n");
+		return -EINVAL;
+	}
+
+	/* check the device size */
+	bh = sb_bread(s, block_count_new - 1);
+	if (!bh) {
+		reiserfs_warning(s, "reiserfs_resize: can\'t read last block\n");
+		return -EINVAL;
+	}	
+	bforget(bh);
+
+	/* old disk layout detection; those partitions can be mounted, but
+	 * cannot be resized */
+	if (SB_BUFFER_WITH_SB(s)->b_blocknr *	SB_BUFFER_WITH_SB(s)->b_size 
+		!= REISERFS_DISK_OFFSET_IN_BYTES ) {
+		reiserfs_warning(s, "reiserfs_resize: unable to resize a reiserfs without distributed bitmap (fs version < 3.5.12)\n");
+		return -ENOTSUPP;
+	}
+       
+	/* count used bits in last bitmap block */
+	block_r = SB_BLOCK_COUNT(s) -
+	        (SB_BMAP_NR(s) - 1) * s->s_blocksize * 8;
+	
+	/* count bitmap blocks in new fs */
+	bmap_nr_new = block_count_new / ( s->s_blocksize * 8 );
+	block_r_new = block_count_new - bmap_nr_new * s->s_blocksize * 8;
+	if (block_r_new) 
+		bmap_nr_new++;
+	else
+		block_r_new = s->s_blocksize * 8;
+
+	/* save old values */
+	block_count = SB_BLOCK_COUNT(s);
+	bmap_nr     = SB_BMAP_NR(s);
+
+	/* resizing of reiserfs bitmaps (journal and real), if needed */
+	if (bmap_nr_new > bmap_nr) {	    
+	    /* reallocate journal bitmaps */
+	    if (reiserfs_allocate_list_bitmaps(s, jbitmap, bmap_nr_new) < 0) {
+		reiserfs_warning(s, "reiserfs_resize: unable to allocate memory for journal bitmaps\n");
+		unlock_super(s) ;
+		return -ENOMEM ;
+	    }
+	    /* the new journal bitmaps are zero filled, now we copy in the bitmap
+	    ** node pointers from the old journal bitmap structs, and then
+	    ** transfer the new data structures into the journal struct.
+	    **
+	    ** using the copy_size var below allows this code to work for
+	    ** both shrinking and expanding the FS.
+	    */
+	    copy_size = bmap_nr_new < bmap_nr ? bmap_nr_new : bmap_nr ;
+	    copy_size = copy_size * sizeof(struct reiserfs_list_bitmap_node *) ;
+	    for (i = 0 ; i < JOURNAL_NUM_BITMAPS ; i++) {
+		struct reiserfs_bitmap_node **node_tmp ;
+		jb = SB_JOURNAL(s)->j_list_bitmap + i ;
+		memcpy(jbitmap[i].bitmaps, jb->bitmaps, copy_size) ;
+
+		/* just in case vfree schedules on us, copy the new
+		** pointer into the journal struct before freeing the 
+		** old one
+		*/
+		node_tmp = jb->bitmaps ;
+		jb->bitmaps = jbitmap[i].bitmaps ;
+		vfree(node_tmp) ;
+	    }	
+	
+	    /* allocate additional bitmap blocks, reallocate array of bitmap
+	     * block pointers */
+	    bitmap = vmalloc(sizeof(struct reiserfs_bitmap_info) * bmap_nr_new);
+	    if (!bitmap) {
+		reiserfs_warning(s, "reiserfs_resize: unable to allocate memory.\n");
+		return -ENOMEM;
+	    }
+	    for (i = 0; i < bmap_nr; i++)
+		bitmap[i] = SB_AP_BITMAP(s)[i];
+	    for (i = bmap_nr; i < bmap_nr_new; i++) {
+		bitmap[i].bh = sb_getblk(s, i * s->s_blocksize * 8);
+		memset(bitmap[i].bh->b_data, 0, sb_blocksize(sb));
+		reiserfs_test_and_set_le_bit(0, bitmap[i].bh->b_data);
+
+		mark_buffer_dirty(bitmap[i].bh) ;
+		mark_buffer_uptodate(bitmap[i].bh, 1);
+		ll_rw_block(WRITE, 1, &bitmap[i].bh);
+		wait_on_buffer(bitmap[i].bh);
+		bitmap[i].first_zero_hint=1;
+		bitmap[i].free_count = s->s_blocksize * 8 - 1;
+	    }	
+	    /* free old bitmap blocks array */
+	    vfree(SB_AP_BITMAP(s)); 
+			   
+	    SB_AP_BITMAP(s) = bitmap;
+	}
+	
+	/* begin transaction */
+	journal_begin(&th, s, 10);
+
+	/* correct last bitmap blocks in old and new disk layout */
+	reiserfs_prepare_for_journal(s, SB_AP_BITMAP(s)[bmap_nr - 1].bh, 1);
+	for (i = block_r; i < s->s_blocksize * 8; i++)
+	    reiserfs_test_and_clear_le_bit(i, 
+					   SB_AP_BITMAP(s)[bmap_nr - 1].bh->b_data);
+	SB_AP_BITMAP(s)[bmap_nr - 1].free_count += s->s_blocksize * 8 - block_r;
+	if ( !SB_AP_BITMAP(s)[bmap_nr - 1].first_zero_hint)
+	    SB_AP_BITMAP(s)[bmap_nr - 1].first_zero_hint = block_r;
+	journal_mark_dirty(&th, s, SB_AP_BITMAP(s)[bmap_nr - 1].bh);
+
+	reiserfs_prepare_for_journal(s, SB_AP_BITMAP(s)[bmap_nr_new - 1].bh, 1);
+	for (i = block_r_new; i < s->s_blocksize * 8; i++)
+	    reiserfs_test_and_set_le_bit(i,
+					 SB_AP_BITMAP(s)[bmap_nr_new - 1].bh->b_data);
+	journal_mark_dirty(&th, s, SB_AP_BITMAP(s)[bmap_nr_new - 1].bh);
+
+	SB_AP_BITMAP(s)[bmap_nr_new - 1].free_count -= s->s_blocksize * 8 - block_r_new;
+	/* Extreme case where last bitmap is the only valid block in itself. */
+	if ( !SB_AP_BITMAP(s)[bmap_nr_new - 1].free_count )
+	    SB_AP_BITMAP(s)[bmap_nr_new - 1].first_zero_hint = 0;
+ 	/* update super */
+	reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s), 1) ;
+	free_blocks = SB_FREE_BLOCKS(s);
+	PUT_SB_FREE_BLOCKS(s, free_blocks + (block_count_new - block_count - (bmap_nr_new - bmap_nr)));
+	PUT_SB_BLOCK_COUNT(s, block_count_new);
+	PUT_SB_BMAP_NR(s, bmap_nr_new);
+	s->s_dirt = 1;
+
+	journal_mark_dirty(&th, s, SB_BUFFER_WITH_SB(s));
+	
+	SB_JOURNAL(s)->j_must_wait = 1;
+	journal_end(&th, s, 10);
+
+	return 0;
+}
+
diff --git a/fs/reiserfs/stree.c b/fs/reiserfs/stree.c
new file mode 100644
index 00000000000000..82042be0787a15
--- /dev/null
+++ b/fs/reiserfs/stree.c
@@ -0,0 +1,1921 @@
+/*
+ *  Copyright 2000-2002 by Hans Reiser, licensing governed by reiserfs/README
+ */
+
+/*
+ *  Written by Anatoly P. Pinchuk pap@namesys.botik.ru
+ *  Programm System Institute
+ *  Pereslavl-Zalessky Russia
+ */
+
+/*
+ *  This file contains functions dealing with S+tree
+ *
+ * B_IS_IN_TREE
+ * copy_short_key
+ * copy_item_head
+ * comp_short_keys
+ * comp_keys
+ * comp_cpu_keys
+ * comp_short_le_keys
+ * comp_short_cpu_keys
+ * cpu_key2cpu_key
+ * le_key2cpu_key
+ * comp_le_keys
+ * bin_search
+ * get_lkey
+ * get_rkey
+ * key_in_buffer
+ * decrement_bcount
+ * decrement_counters_in_path
+ * reiserfs_check_path
+ * pathrelse_and_restore
+ * pathrelse
+ * search_by_key_reada
+ * search_by_key
+ * search_for_position_by_key
+ * comp_items
+ * prepare_for_direct_item
+ * prepare_for_direntry_item
+ * prepare_for_delete_or_cut
+ * calc_deleted_bytes_number
+ * init_tb_struct
+ * padd_item
+ * reiserfs_delete_item
+ * reiserfs_delete_solid_item
+ * reiserfs_delete_object
+ * maybe_indirect_to_direct
+ * indirect_to_direct_roll_back
+ * reiserfs_cut_from_item
+ * truncate_directory
+ * reiserfs_do_truncate
+ * reiserfs_paste_into_item
+ * reiserfs_insert_item
+ */
+
+#include <linux/config.h>
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/locks.h>
+#include <linux/pagemap.h>
+#include <linux/reiserfs_fs.h>
+#include <linux/smp_lock.h>
+
+/* Does the buffer contain a disk block which is in the tree. */
+inline int B_IS_IN_TREE (const struct buffer_head * p_s_bh)
+{
+
+  RFALSE( B_LEVEL (p_s_bh) > MAX_HEIGHT,
+	  "PAP-1010: block (%b) has too big level (%z)", p_s_bh, p_s_bh);
+
+  return ( B_LEVEL (p_s_bh) != FREE_LEVEL );
+}
+
+
+
+
+inline void copy_short_key (void * to, const void * from)
+{
+    memcpy (to, from, SHORT_KEY_SIZE);
+}
+
+//
+// to gets item head in le form
+//
+inline void copy_item_head(struct item_head * p_v_to, 
+			   const struct item_head * p_v_from)
+{
+  memcpy (p_v_to, p_v_from, IH_SIZE);
+}
+
+
+/* k1 is pointer to on-disk structure which is stored in little-endian
+   form. k2 is pointer to cpu variable. For key of items of the same
+   object this returns 0.
+   Returns: -1 if key1 < key2 
+   0 if key1 == key2
+   1 if key1 > key2 */
+inline int  comp_short_keys (const struct key * le_key, 
+			     const struct cpu_key * cpu_key)
+{
+  __u32 * p_s_le_u32, * p_s_cpu_u32;
+  int n_key_length = REISERFS_SHORT_KEY_LEN;
+
+  p_s_le_u32 = (__u32 *)le_key;
+  p_s_cpu_u32 = (__u32 *)cpu_key;
+  for( ; n_key_length--; ++p_s_le_u32, ++p_s_cpu_u32 ) {
+    if ( le32_to_cpu (*p_s_le_u32) < *p_s_cpu_u32 )
+      return -1;
+    if ( le32_to_cpu (*p_s_le_u32) > *p_s_cpu_u32 )
+      return 1;
+  }
+
+  return 0;
+}
+
+
+/* k1 is pointer to on-disk structure which is stored in little-endian
+   form. k2 is pointer to cpu variable.
+   Compare keys using all 4 key fields.
+   Returns: -1 if key1 < key2 0
+   if key1 = key2 1 if key1 > key2 */
+inline int  comp_keys (const struct key * le_key, const struct cpu_key * cpu_key)
+{
+  int retval;
+
+  retval = comp_short_keys (le_key, cpu_key);
+  if (retval)
+      return retval;
+  if (le_key_k_offset (le_key_version(le_key), le_key) < cpu_key_k_offset (cpu_key))
+      return -1;
+  if (le_key_k_offset (le_key_version(le_key), le_key) > cpu_key_k_offset (cpu_key))
+      return 1;
+
+  if (cpu_key->key_length == 3)
+      return 0;
+
+  /* this part is needed only when tail conversion is in progress */
+  if (le_key_k_type (le_key_version(le_key), le_key) < cpu_key_k_type (cpu_key))
+    return -1;
+
+  if (le_key_k_type (le_key_version(le_key), le_key) > cpu_key_k_type (cpu_key))
+    return 1;
+
+  return 0;
+}
+
+
+//
+// FIXME: not used yet
+//
+inline int comp_cpu_keys (const struct cpu_key * key1, 
+			  const struct cpu_key * key2)
+{
+    if (key1->on_disk_key.k_dir_id < key2->on_disk_key.k_dir_id)
+	return -1;
+    if (key1->on_disk_key.k_dir_id > key2->on_disk_key.k_dir_id)
+	return 1;
+
+    if (key1->on_disk_key.k_objectid < key2->on_disk_key.k_objectid)
+	return -1;
+    if (key1->on_disk_key.k_objectid > key2->on_disk_key.k_objectid)
+	return 1;
+
+    if (cpu_key_k_offset (key1) < cpu_key_k_offset (key2))
+	return -1;
+    if (cpu_key_k_offset (key1) > cpu_key_k_offset (key2))
+	return 1;
+
+    reiserfs_warning (NULL, "comp_cpu_keys: type are compared for %K and %K\n",
+		      key1, key2);
+
+    if (cpu_key_k_type (key1) < cpu_key_k_type (key2))
+	return -1;
+    if (cpu_key_k_type (key1) > cpu_key_k_type (key2))
+	return 1;
+    return 0;
+}
+
+inline int comp_short_le_keys (const struct key * key1, const struct key * key2)
+{
+  __u32 * p_s_1_u32, * p_s_2_u32;
+  int n_key_length = REISERFS_SHORT_KEY_LEN;
+
+  p_s_1_u32 = (__u32 *)key1;
+  p_s_2_u32 = (__u32 *)key2;
+  for( ; n_key_length--; ++p_s_1_u32, ++p_s_2_u32 ) {
+    if ( le32_to_cpu (*p_s_1_u32) < le32_to_cpu (*p_s_2_u32) )
+      return -1;
+    if ( le32_to_cpu (*p_s_1_u32) > le32_to_cpu (*p_s_2_u32) )
+      return 1;
+  }
+  return 0;
+}
+
+inline int comp_short_cpu_keys (const struct cpu_key * key1, 
+				const struct cpu_key * key2)
+{
+  __u32 * p_s_1_u32, * p_s_2_u32;
+  int n_key_length = REISERFS_SHORT_KEY_LEN;
+
+  p_s_1_u32 = (__u32 *)key1;
+  p_s_2_u32 = (__u32 *)key2;
+
+  for( ; n_key_length--; ++p_s_1_u32, ++p_s_2_u32 ) {
+    if ( *p_s_1_u32 < *p_s_2_u32 )
+      return -1;
+    if ( *p_s_1_u32 > *p_s_2_u32 )
+      return 1;
+  }
+  return 0;
+}
+
+
+
+inline void cpu_key2cpu_key (struct cpu_key * to, const struct cpu_key * from)
+{
+    memcpy (to, from, sizeof (struct cpu_key));
+}
+
+
+inline void le_key2cpu_key (struct cpu_key * to, const struct key * from)
+{
+    to->on_disk_key.k_dir_id = le32_to_cpu (from->k_dir_id);
+    to->on_disk_key.k_objectid = le32_to_cpu (from->k_objectid);
+    
+    // find out version of the key
+    to->version = le_key_version (from);
+    if (to->version == KEY_FORMAT_3_5) {
+	to->on_disk_key.u.k_offset_v1.k_offset = le32_to_cpu (from->u.k_offset_v1.k_offset);
+	to->on_disk_key.u.k_offset_v1.k_uniqueness = le32_to_cpu (from->u.k_offset_v1.k_uniqueness);
+    } else {
+	to->on_disk_key.u.k_offset_v2.k_offset = offset_v2_k_offset(&from->u.k_offset_v2);
+	to->on_disk_key.u.k_offset_v2.k_type = offset_v2_k_type(&from->u.k_offset_v2);
+    } 
+}
+
+
+
+// this does not say which one is bigger, it only returns 1 if keys
+// are not equal, 0 otherwise
+inline int comp_le_keys (const struct key * k1, const struct key * k2)
+{
+    return memcmp (k1, k2, sizeof (struct key));
+}
+
+/**************************************************************************
+ *  Binary search toolkit function                                        *
+ *  Search for an item in the array by the item key                       *
+ *  Returns:    1 if found,  0 if not found;                              *
+ *        *p_n_pos = number of the searched element if found, else the    *
+ *        number of the first element that is larger than p_v_key.        *
+ **************************************************************************/
+/* For those not familiar with binary search: n_lbound is the leftmost item that it
+ could be, n_rbound the rightmost item that it could be.  We examine the item
+ halfway between n_lbound and n_rbound, and that tells us either that we can increase
+ n_lbound, or decrease n_rbound, or that we have found it, or if n_lbound <= n_rbound that
+ there are no possible items, and we have not found it. With each examination we
+ cut the number of possible items it could be by one more than half rounded down,
+ or we find it. */
+inline	int bin_search (
+              const void * p_v_key, /* Key to search for.                   */
+	      const void * p_v_base,/* First item in the array.             */
+	      int       p_n_num,    /* Number of items in the array.        */
+	      int       p_n_width,  /* Item size in the array.
+				       searched. Lest the reader be
+				       confused, note that this is crafted
+				       as a general function, and when it
+				       is applied specifically to the array
+				       of item headers in a node, p_n_width
+				       is actually the item header size not
+				       the item size.                      */
+	      int     * p_n_pos     /* Number of the searched for element. */
+            ) {
+    int   n_rbound, n_lbound, n_j;
+
+   for ( n_j = ((n_rbound = p_n_num - 1) + (n_lbound = 0))/2; n_lbound <= n_rbound; n_j = (n_rbound + n_lbound)/2 )
+     switch( COMP_KEYS((struct key *)((char * )p_v_base + n_j * p_n_width), (struct cpu_key *)p_v_key) )  {
+     case -1: n_lbound = n_j + 1; continue;
+     case  1: n_rbound = n_j - 1; continue;
+     case  0: *p_n_pos = n_j;     return ITEM_FOUND; /* Key found in the array.  */
+        }
+
+    /* bin_search did not find given key, it returns position of key,
+        that is minimal and greater than the given one. */
+    *p_n_pos = n_lbound;
+    return ITEM_NOT_FOUND;
+}
+
+#ifdef CONFIG_REISERFS_CHECK
+extern struct tree_balance * cur_tb;
+#endif
+
+
+
+/* Minimal possible key. It is never in the tree. */
+const struct key  MIN_KEY = {0, 0, {{0, 0},}};
+
+/* Maximal possible key. It is never in the tree. */
+const struct key  MAX_KEY = {0xffffffff, 0xffffffff, {{0xffffffff, 0xffffffff},}};
+
+
+/* Get delimiting key of the buffer by looking for it in the buffers in the path, starting from the bottom
+   of the path, and going upwards.  We must check the path's validity at each step.  If the key is not in
+   the path, there is no delimiting key in the tree (buffer is first or last buffer in tree), and in this
+   case we return a special key, either MIN_KEY or MAX_KEY. */
+inline	const struct  key * get_lkey  (
+	                const struct path         * p_s_chk_path,
+                        const struct super_block  * p_s_sb
+                      ) {
+  int                   n_position, n_path_offset = p_s_chk_path->path_length;
+  struct buffer_head  * p_s_parent;
+  
+  RFALSE( n_path_offset < FIRST_PATH_ELEMENT_OFFSET, 
+	  "PAP-5010: illegal offset in the path");
+
+  /* While not higher in path than first element. */
+  while ( n_path_offset-- > FIRST_PATH_ELEMENT_OFFSET ) {
+
+    RFALSE( ! buffer_uptodate(PATH_OFFSET_PBUFFER(p_s_chk_path, n_path_offset)),
+	    "PAP-5020: parent is not uptodate");
+
+    /* Parent at the path is not in the tree now. */
+    if ( ! B_IS_IN_TREE(p_s_parent = PATH_OFFSET_PBUFFER(p_s_chk_path, n_path_offset)) )
+      return &MAX_KEY;
+    /* Check whether position in the parent is correct. */
+    if ( (n_position = PATH_OFFSET_POSITION(p_s_chk_path, n_path_offset)) > B_NR_ITEMS(p_s_parent) )
+       return &MAX_KEY;
+    /* Check whether parent at the path really points to the child. */
+    if ( B_N_CHILD_NUM(p_s_parent, n_position) !=
+	 PATH_OFFSET_PBUFFER(p_s_chk_path, n_path_offset + 1)->b_blocknr )
+      return &MAX_KEY;
+    /* Return delimiting key if position in the parent is not equal to zero. */
+    if ( n_position )
+      return B_N_PDELIM_KEY(p_s_parent, n_position - 1);
+  }
+  /* Return MIN_KEY if we are in the root of the buffer tree. */
+  if ( PATH_OFFSET_PBUFFER(p_s_chk_path, FIRST_PATH_ELEMENT_OFFSET)->b_blocknr ==
+       SB_ROOT_BLOCK (p_s_sb) )
+    return &MIN_KEY;
+  return  &MAX_KEY;
+}
+
+
+/* Get delimiting key of the buffer at the path and its right neighbor. */
+inline	const struct  key * get_rkey  (
+	                const struct path         * p_s_chk_path,
+                        const struct super_block  * p_s_sb
+                      ) {
+  int                   n_position,
+    			n_path_offset = p_s_chk_path->path_length;
+  struct buffer_head  * p_s_parent;
+
+  RFALSE( n_path_offset < FIRST_PATH_ELEMENT_OFFSET,
+	  "PAP-5030: illegal offset in the path");
+
+  while ( n_path_offset-- > FIRST_PATH_ELEMENT_OFFSET ) {
+
+    RFALSE( ! buffer_uptodate(PATH_OFFSET_PBUFFER(p_s_chk_path, n_path_offset)),
+	    "PAP-5040: parent is not uptodate");
+
+    /* Parent at the path is not in the tree now. */
+    if ( ! B_IS_IN_TREE(p_s_parent = PATH_OFFSET_PBUFFER(p_s_chk_path, n_path_offset)) )
+      return &MIN_KEY;
+    /* Check whether position in the parent is correct. */
+    if ( (n_position = PATH_OFFSET_POSITION(p_s_chk_path, n_path_offset)) > B_NR_ITEMS(p_s_parent) )
+      return &MIN_KEY;
+    /* Check whether parent at the path really points to the child. */
+    if ( B_N_CHILD_NUM(p_s_parent, n_position) !=
+                                        PATH_OFFSET_PBUFFER(p_s_chk_path, n_path_offset + 1)->b_blocknr )
+      return &MIN_KEY;
+    /* Return delimiting key if position in the parent is not the last one. */
+    if ( n_position != B_NR_ITEMS(p_s_parent) )
+      return B_N_PDELIM_KEY(p_s_parent, n_position);
+  }
+  /* Return MAX_KEY if we are in the root of the buffer tree. */
+  if ( PATH_OFFSET_PBUFFER(p_s_chk_path, FIRST_PATH_ELEMENT_OFFSET)->b_blocknr ==
+       SB_ROOT_BLOCK (p_s_sb) )
+    return &MAX_KEY;
+  return  &MIN_KEY;
+}
+
+
+/* Check whether a key is contained in the tree rooted from a buffer at a path. */
+/* This works by looking at the left and right delimiting keys for the buffer in the last path_element in
+   the path.  These delimiting keys are stored at least one level above that buffer in the tree. If the
+   buffer is the first or last node in the tree order then one of the delimiting keys may be absent, and in
+   this case get_lkey and get_rkey return a special key which is MIN_KEY or MAX_KEY. */
+static  inline  int key_in_buffer (
+                      struct path         * p_s_chk_path, /* Path which should be checked.  */
+                      const struct cpu_key      * p_s_key,      /* Key which should be checked.   */
+                      struct super_block  * p_s_sb        /* Super block pointer.           */
+		      ) {
+
+  RFALSE( ! p_s_key || p_s_chk_path->path_length < FIRST_PATH_ELEMENT_OFFSET ||
+	  p_s_chk_path->path_length > MAX_HEIGHT,
+	  "PAP-5050: pointer to the key(%p) is NULL or illegal path length(%d)",
+	  p_s_key, p_s_chk_path->path_length);
+  RFALSE( PATH_PLAST_BUFFER(p_s_chk_path)->b_dev == NODEV,
+	  "PAP-5060: device must not be NODEV");
+
+  if ( COMP_KEYS(get_lkey(p_s_chk_path, p_s_sb), p_s_key) == 1 )
+    /* left delimiting key is bigger, that the key we look for */
+    return 0;
+  //  if ( COMP_KEYS(p_s_key, get_rkey(p_s_chk_path, p_s_sb)) != -1 )
+  if ( COMP_KEYS(get_rkey(p_s_chk_path, p_s_sb), p_s_key) != 1 )
+    /* p_s_key must be less than right delimitiing key */
+    return 0;
+  return 1;
+}
+
+
+inline void decrement_bcount(
+              struct buffer_head  * p_s_bh
+            ) { 
+  if ( p_s_bh ) {
+    if ( atomic_read (&(p_s_bh->b_count)) ) {
+      put_bh(p_s_bh) ;
+      return;
+    }
+    reiserfs_panic(NULL, "PAP-5070: decrement_bcount: trying to free free buffer %b", p_s_bh);
+  }
+}
+
+
+/* Decrement b_count field of the all buffers in the path. */
+void decrement_counters_in_path (
+              struct path * p_s_search_path
+            ) {
+  int n_path_offset = p_s_search_path->path_length;
+
+  RFALSE( n_path_offset < ILLEGAL_PATH_ELEMENT_OFFSET ||
+	  n_path_offset > EXTENDED_MAX_HEIGHT - 1,
+	  "PAP-5080: illegal path offset of %d", n_path_offset);
+
+  while ( n_path_offset > ILLEGAL_PATH_ELEMENT_OFFSET ) {
+    struct buffer_head * bh;
+
+    bh = PATH_OFFSET_PBUFFER(p_s_search_path, n_path_offset--);
+    decrement_bcount (bh);
+  }
+  p_s_search_path->path_length = ILLEGAL_PATH_ELEMENT_OFFSET;
+}
+
+
+int reiserfs_check_path(struct path *p) {
+  RFALSE( p->path_length != ILLEGAL_PATH_ELEMENT_OFFSET,
+	  "path not properly relsed") ;
+  return 0 ;
+}
+
+
+/* Release all buffers in the path. Restore dirty bits clean
+** when preparing the buffer for the log
+**
+** only called from fix_nodes()
+*/
+void  pathrelse_and_restore (
+	struct super_block *s, 
+        struct path * p_s_search_path
+      ) {
+  int n_path_offset = p_s_search_path->path_length;
+
+  RFALSE( n_path_offset < ILLEGAL_PATH_ELEMENT_OFFSET, 
+	  "clm-4000: illegal path offset");
+  
+  while ( n_path_offset > ILLEGAL_PATH_ELEMENT_OFFSET )  {
+    reiserfs_restore_prepared_buffer(s, PATH_OFFSET_PBUFFER(p_s_search_path, 
+                                     n_path_offset));
+    brelse(PATH_OFFSET_PBUFFER(p_s_search_path, n_path_offset--));
+  }
+  p_s_search_path->path_length = ILLEGAL_PATH_ELEMENT_OFFSET;
+}
+
+/* Release all buffers in the path. */
+void  pathrelse (
+        struct path * p_s_search_path
+      ) {
+  int n_path_offset = p_s_search_path->path_length;
+
+  RFALSE( n_path_offset < ILLEGAL_PATH_ELEMENT_OFFSET,
+	  "PAP-5090: illegal path offset");
+  
+  while ( n_path_offset > ILLEGAL_PATH_ELEMENT_OFFSET )  
+    brelse(PATH_OFFSET_PBUFFER(p_s_search_path, n_path_offset--));
+
+  p_s_search_path->path_length = ILLEGAL_PATH_ELEMENT_OFFSET;
+}
+
+
+
+static int is_leaf (char * buf, int blocksize, struct buffer_head * bh)
+{
+    struct block_head * blkh;
+    struct item_head * ih;
+    int used_space;
+    int prev_location;
+    int i;
+    int nr;
+
+    blkh = (struct block_head *)buf;
+    if ( blkh_level(blkh) != DISK_LEAF_NODE_LEVEL) {
+	printk ("is_leaf: this should be caught earlier\n");
+	return 0;
+    }
+
+    nr = blkh_nr_item(blkh);
+    if (nr < 1 || nr > ((blocksize - BLKH_SIZE) / (IH_SIZE + MIN_ITEM_LEN))) {
+	/* item number is too big or too small */
+	reiserfs_warning (NULL, "is_leaf: nr_item seems wrong: %z\n", bh);
+	return 0;
+    }
+    ih = (struct item_head *)(buf + BLKH_SIZE) + nr - 1;
+    used_space = BLKH_SIZE + IH_SIZE * nr + (blocksize - ih_location (ih));
+    if (used_space != blocksize - blkh_free_space(blkh)) {
+	/* free space does not match to calculated amount of use space */
+	reiserfs_warning (NULL, "is_leaf: free space seems wrong: %z\n", bh);
+	return 0;
+    }
+
+    // FIXME: it is_leaf will hit performance too much - we may have
+    // return 1 here
+
+    /* check tables of item heads */
+    ih = (struct item_head *)(buf + BLKH_SIZE);
+    prev_location = blocksize;
+    for (i = 0; i < nr; i ++, ih ++) {
+	if ( le_ih_k_type(ih) == TYPE_ANY) {
+	    reiserfs_warning (NULL, "is_leaf: wrong item type for item %h\n",ih);
+	    return 0;
+	}
+	if (ih_location (ih) >= blocksize || ih_location (ih) < IH_SIZE * nr) {
+	    reiserfs_warning (NULL, "is_leaf: item location seems wrong: %h\n", ih);
+	    return 0;
+	}
+	if (ih_item_len (ih) < 1 || ih_item_len (ih) > MAX_ITEM_LEN (blocksize)) {
+	    reiserfs_warning (NULL, "is_leaf: item length seems wrong: %h\n", ih);
+	    return 0;
+	}
+	if (prev_location - ih_location (ih) != ih_item_len (ih)) {
+	    reiserfs_warning (NULL, "is_leaf: item location seems wrong (second one): %h\n", ih);
+	    return 0;
+	}
+	prev_location = ih_location (ih);
+    }
+
+    // one may imagine much more checks
+    return 1;
+}
+
+
+/* returns 1 if buf looks like an internal node, 0 otherwise */
+static int is_internal (char * buf, int blocksize, struct buffer_head * bh)
+{
+    struct block_head * blkh;
+    int nr;
+    int used_space;
+
+    blkh = (struct block_head *)buf;
+    nr = blkh_level(blkh);
+    if (nr <= DISK_LEAF_NODE_LEVEL || nr > MAX_HEIGHT) {
+	/* this level is not possible for internal nodes */
+	printk ("is_internal: this should be caught earlier\n");
+	return 0;
+    }
+    
+    nr = blkh_nr_item(blkh);
+    if (nr > (blocksize - BLKH_SIZE - DC_SIZE) / (KEY_SIZE + DC_SIZE)) {
+	/* for internal which is not root we might check min number of keys */
+	reiserfs_warning (NULL, "is_internal: number of key seems wrong: %z\n", bh);
+	return 0;
+    }
+
+    used_space = BLKH_SIZE + KEY_SIZE * nr + DC_SIZE * (nr + 1);
+    if (used_space != blocksize - blkh_free_space(blkh)) {
+	reiserfs_warning (NULL, "is_internal: free space seems wrong: %z\n", bh);
+	return 0;
+    }
+
+    // one may imagine much more checks
+    return 1;
+}
+
+
+// make sure that bh contains formatted node of reiserfs tree of
+// 'level'-th level
+static int is_tree_node (struct buffer_head * bh, int level)
+{
+    if (B_LEVEL (bh) != level) {
+	printk ("is_tree_node: node level %d does not match to the expected one %d\n",
+		B_LEVEL (bh), level);
+	return 0;
+    }
+    if (level == DISK_LEAF_NODE_LEVEL)
+	return is_leaf (bh->b_data, bh->b_size, bh);
+
+    return is_internal (bh->b_data, bh->b_size, bh);
+}
+
+
+
+#ifdef SEARCH_BY_KEY_READA
+
+/* The function is NOT SCHEDULE-SAFE! */
+static void search_by_key_reada (struct super_block * s, int blocknr)
+{
+    struct buffer_head * bh;
+  
+    if (blocknr == 0)
+	return;
+
+    bh = getblk (s->s_dev, blocknr, s->s_blocksize);
+  
+    if (!buffer_uptodate (bh)) {
+	ll_rw_block (READA, 1, &bh);
+    }
+    bh->b_count --;
+}
+
+#endif
+
+/**************************************************************************
+ * Algorithm   SearchByKey                                                *
+ *             look for item in the Disk S+Tree by its key                *
+ * Input:  p_s_sb   -  super block                                        *
+ *         p_s_key  - pointer to the key to search                        *
+ * Output: ITEM_FOUND, ITEM_NOT_FOUND or IO_ERROR                         *
+ *         p_s_search_path - path from the root to the needed leaf        *
+ **************************************************************************/
+
+/* This function fills up the path from the root to the leaf as it
+   descends the tree looking for the key.  It uses reiserfs_bread to
+   try to find buffers in the cache given their block number.  If it
+   does not find them in the cache it reads them from disk.  For each
+   node search_by_key finds using reiserfs_bread it then uses
+   bin_search to look through that node.  bin_search will find the
+   position of the block_number of the next node if it is looking
+   through an internal node.  If it is looking through a leaf node
+   bin_search will find the position of the item which has key either
+   equal to given key, or which is the maximal key less than the given
+   key.  search_by_key returns a path that must be checked for the
+   correctness of the top of the path but need not be checked for the
+   correctness of the bottom of the path */
+/* The function is NOT SCHEDULE-SAFE! */
+int search_by_key (struct super_block * p_s_sb,
+		   const struct cpu_key * p_s_key, /* Key to search. */
+		   struct path * p_s_search_path, /* This structure was
+						     allocated and initialized
+						     by the calling
+						     function. It is filled up
+						     by this function.  */
+		   int n_stop_level /* How far down the tree to search. To
+                                       stop at leaf level - set to
+                                       DISK_LEAF_NODE_LEVEL */
+    ) {
+    int  n_block_number = SB_ROOT_BLOCK (p_s_sb),
+      expected_level = SB_TREE_HEIGHT (p_s_sb),
+      n_block_size    = p_s_sb->s_blocksize;
+    struct buffer_head  *       p_s_bh;
+    struct path_element *       p_s_last_element;
+    int				n_node_level, n_retval;
+    int 			right_neighbor_of_leaf_node;
+    int				fs_gen;
+
+#ifdef CONFIG_REISERFS_CHECK
+    int n_repeat_counter = 0;
+#endif
+    
+    PROC_INFO_INC( p_s_sb, search_by_key );
+    
+    /* As we add each node to a path we increase its count.  This means that
+       we must be careful to release all nodes in a path before we either
+       discard the path struct or re-use the path struct, as we do here. */
+
+    decrement_counters_in_path(p_s_search_path);
+
+    right_neighbor_of_leaf_node = 0;
+
+    /* With each iteration of this loop we search through the items in the
+       current node, and calculate the next current node(next path element)
+       for the next iteration of this loop.. */
+    while ( 1 ) {
+
+#ifdef CONFIG_REISERFS_CHECK
+	if ( !(++n_repeat_counter % 50000) )
+	    reiserfs_warning (p_s_sb, "PAP-5100: search_by_key: %s:"
+			      "there were %d iterations of while loop "
+			      "looking for key %K\n",
+			      current->comm, n_repeat_counter, p_s_key);
+#endif
+
+	/* prep path to have another element added to it. */
+	p_s_last_element = PATH_OFFSET_PELEMENT(p_s_search_path, ++p_s_search_path->path_length);
+	fs_gen = get_generation (p_s_sb);
+	expected_level --;
+
+#ifdef SEARCH_BY_KEY_READA
+	/* schedule read of right neighbor */
+	search_by_key_reada (p_s_sb, right_neighbor_of_leaf_node);
+#endif
+
+	/* Read the next tree node, and set the last element in the path to
+           have a pointer to it. */
+	if ( ! (p_s_bh = p_s_last_element->pe_buffer =
+		reiserfs_bread(p_s_sb, n_block_number, n_block_size)) ) {
+	    p_s_search_path->path_length --;
+	    pathrelse(p_s_search_path);
+	    return IO_ERROR;
+	}
+
+ 	if( fs_changed (fs_gen, p_s_sb) ) {
+ 		PROC_INFO_INC( p_s_sb, search_by_key_fs_changed );
+ 		PROC_INFO_INC( p_s_sb, sbk_fs_changed[ expected_level - 1 ] );
+ 	}
+
+	/* It is possible that schedule occurred. We must check whether the key
+	   to search is still in the tree rooted from the current buffer. If
+	   not then repeat search from the root. */
+	if ( fs_changed (fs_gen, p_s_sb) && 
+	     (!B_IS_IN_TREE (p_s_bh) || !key_in_buffer(p_s_search_path, p_s_key, p_s_sb)) ) {
+ 	    PROC_INFO_INC( p_s_sb, search_by_key_restarted );
+	    PROC_INFO_INC( p_s_sb, sbk_restarted[ expected_level - 1 ] );
+	    decrement_counters_in_path(p_s_search_path);
+	    
+	    /* Get the root block number so that we can repeat the search
+               starting from the root. */
+	    n_block_number = SB_ROOT_BLOCK (p_s_sb);
+	    expected_level = SB_TREE_HEIGHT (p_s_sb);
+	    right_neighbor_of_leaf_node = 0;
+	    
+	    /* repeat search from the root */
+	    continue;
+	}
+
+        /* only check that the key is in the buffer if p_s_key is not
+           equal to the MAX_KEY. Latter case is only possible in
+           "finish_unfinished()" processing during mount. */
+        RFALSE( COMP_KEYS( &MAX_KEY, p_s_key ) && 
+                ! key_in_buffer(p_s_search_path, p_s_key, p_s_sb),
+		"PAP-5130: key is not in the buffer");
+#ifdef CONFIG_REISERFS_CHECK
+	if ( cur_tb ) {
+	    print_cur_tb ("5140");
+	    reiserfs_panic(p_s_sb, "PAP-5140: search_by_key: schedule occurred in do_balance!");
+	}
+#endif
+
+	// make sure, that the node contents look like a node of
+	// certain level
+	if (!is_tree_node (p_s_bh, expected_level)) {
+	    reiserfs_warning (p_s_sb, "vs-5150: search_by_key: "
+			      "invalid format found in block %ld. Fsck?\n", 
+			      p_s_bh->b_blocknr);
+	    pathrelse (p_s_search_path);
+	    return IO_ERROR;
+	}
+	
+	/* ok, we have acquired next formatted node in the tree */
+	n_node_level = B_LEVEL (p_s_bh);
+
+	PROC_INFO_BH_STAT( p_s_sb, p_s_bh, n_node_level - 1 );
+
+	RFALSE( n_node_level < n_stop_level,
+		"vs-5152: tree level (%d) is less than stop level (%d)",
+		n_node_level, n_stop_level);
+
+	n_retval = bin_search( p_s_key, B_N_PITEM_HEAD(p_s_bh, 0),
+                B_NR_ITEMS(p_s_bh),
+                ( n_node_level == DISK_LEAF_NODE_LEVEL ) ? IH_SIZE : KEY_SIZE,
+                &(p_s_last_element->pe_position));
+	if (n_node_level == n_stop_level) {
+	    return n_retval;
+	}
+
+	/* we are not in the stop level */
+	if (n_retval == ITEM_FOUND)
+	    /* item has been found, so we choose the pointer which is to the right of the found one */
+	    p_s_last_element->pe_position++;
+
+	/* if item was not found we choose the position which is to
+	   the left of the found item. This requires no code,
+	   bin_search did it already.*/
+
+	/* So we have chosen a position in the current node which is
+	   an internal node.  Now we calculate child block number by
+	   position in the node. */
+	n_block_number = B_N_CHILD_NUM(p_s_bh, p_s_last_element->pe_position);
+
+#ifdef SEARCH_BY_KEY_READA
+	/* if we are going to read leaf node, then calculate its right neighbor if possible */
+	if (n_node_level == DISK_LEAF_NODE_LEVEL + 1 && p_s_last_element->pe_position < B_NR_ITEMS (p_s_bh))
+	    right_neighbor_of_leaf_node = B_N_CHILD_NUM(p_s_bh, p_s_last_element->pe_position + 1);
+#endif
+    }
+}
+
+
+/* Form the path to an item and position in this item which contains
+   file byte defined by p_s_key. If there is no such item
+   corresponding to the key, we point the path to the item with
+   maximal key less than p_s_key, and *p_n_pos_in_item is set to one
+   past the last entry/byte in the item.  If searching for entry in a
+   directory item, and it is not found, *p_n_pos_in_item is set to one
+   entry more than the entry with maximal key which is less than the
+   sought key.
+
+   Note that if there is no entry in this same node which is one more,
+   then we point to an imaginary entry.  for direct items, the
+   position is in units of bytes, for indirect items the position is
+   in units of blocknr entries, for directory items the position is in
+   units of directory entries.  */
+
+/* The function is NOT SCHEDULE-SAFE! */
+int search_for_position_by_key (struct super_block  * p_s_sb,         /* Pointer to the super block.          */
+				const struct cpu_key  * p_cpu_key,      /* Key to search (cpu variable)         */
+				struct path         * p_s_search_path /* Filled up by this function.          */
+    ) {
+    struct item_head    * p_le_ih; /* pointer to on-disk structure */
+    int                   n_blk_size;
+    loff_t item_offset, offset;
+    struct reiserfs_dir_entry de;
+    int retval;
+
+    /* If searching for directory entry. */
+    if ( is_direntry_cpu_key (p_cpu_key) )
+	return  search_by_entry_key (p_s_sb, p_cpu_key, p_s_search_path, &de);
+
+    /* If not searching for directory entry. */
+    
+    /* If item is found. */
+    retval = search_item (p_s_sb, p_cpu_key, p_s_search_path);
+    if (retval == IO_ERROR)
+	return retval;
+    if ( retval == ITEM_FOUND )  {
+
+	RFALSE( ! ih_item_len(
+                B_N_PITEM_HEAD(PATH_PLAST_BUFFER(p_s_search_path),
+			       PATH_LAST_POSITION(p_s_search_path))),
+	        "PAP-5165: item length equals zero");
+
+	pos_in_item(p_s_search_path) = 0;
+	return POSITION_FOUND;
+    }
+
+    RFALSE( ! PATH_LAST_POSITION(p_s_search_path),
+	    "PAP-5170: position equals zero");
+
+    /* Item is not found. Set path to the previous item. */
+    p_le_ih = B_N_PITEM_HEAD(PATH_PLAST_BUFFER(p_s_search_path), --PATH_LAST_POSITION(p_s_search_path));
+    n_blk_size = p_s_sb->s_blocksize;
+
+    if (comp_short_keys (&(p_le_ih->ih_key), p_cpu_key)) {
+	return FILE_NOT_FOUND;
+    }
+
+    // FIXME: quite ugly this far
+
+    item_offset = le_ih_k_offset (p_le_ih);
+    offset = cpu_key_k_offset (p_cpu_key);
+
+    /* Needed byte is contained in the item pointed to by the path.*/
+    if (item_offset <= offset &&
+	item_offset + op_bytes_number (p_le_ih, n_blk_size) > offset) {
+	pos_in_item (p_s_search_path) = offset - item_offset;
+	if ( is_indirect_le_ih(p_le_ih) ) {
+	    pos_in_item (p_s_search_path) /= n_blk_size;
+	}
+	return POSITION_FOUND;
+    }
+
+    /* Needed byte is not contained in the item pointed to by the
+     path. Set pos_in_item out of the item. */
+    if ( is_indirect_le_ih (p_le_ih) )
+	pos_in_item (p_s_search_path) = ih_item_len(p_le_ih) / UNFM_P_SIZE;
+    else
+        pos_in_item (p_s_search_path) = ih_item_len( p_le_ih );
+  
+    return POSITION_NOT_FOUND;
+}
+
+
+/* Compare given item and item pointed to by the path. */
+int comp_items (const struct item_head * stored_ih, const struct path * p_s_path)
+{
+    struct buffer_head  * p_s_bh;
+    struct item_head    * ih;
+
+    /* Last buffer at the path is not in the tree. */
+    if ( ! B_IS_IN_TREE(p_s_bh = PATH_PLAST_BUFFER(p_s_path)) )
+	return 1;
+
+    /* Last path position is invalid. */
+    if ( PATH_LAST_POSITION(p_s_path) >= B_NR_ITEMS(p_s_bh) )
+	return 1;
+
+    /* we need only to know, whether it is the same item */
+    ih = get_ih (p_s_path);
+    return memcmp (stored_ih, ih, IH_SIZE);
+}
+
+
+/* unformatted nodes are not logged anymore, ever.  This is safe
+** now
+*/
+#define held_by_others(bh) (atomic_read(&(bh)->b_count) > 1)
+
+// block can not be forgotten as it is in I/O or held by someone
+#define block_in_use(bh) (buffer_locked(bh) || (held_by_others(bh)))
+
+
+
+// prepare for delete or cut of direct item
+static inline int prepare_for_direct_item (struct path * path,
+					   struct item_head * le_ih,
+					   struct inode * inode,
+					   loff_t new_file_length,
+					   int * cut_size)
+{
+    loff_t round_len;
+
+
+    if ( new_file_length == max_reiserfs_offset (inode) ) {
+	/* item has to be deleted */
+	*cut_size = -(IH_SIZE + ih_item_len(le_ih));
+	return M_DELETE;
+    }
+	
+    // new file gets truncated
+    if (get_inode_item_key_version (inode) == KEY_FORMAT_3_6) {
+	// 
+	round_len = ROUND_UP (new_file_length); 
+	/* this was n_new_file_length < le_ih ... */
+	if ( round_len < le_ih_k_offset (le_ih) )  {
+	    *cut_size = -(IH_SIZE + ih_item_len(le_ih));
+	    return M_DELETE; /* Delete this item. */
+	}
+	/* Calculate first position and size for cutting from item. */
+	pos_in_item (path) = round_len - (le_ih_k_offset (le_ih) - 1);
+	*cut_size = -(ih_item_len(le_ih) - pos_in_item(path));
+	
+	return M_CUT; /* Cut from this item. */
+    }
+
+
+    // old file: items may have any length
+
+    if ( new_file_length < le_ih_k_offset (le_ih) )  {
+	*cut_size = -(IH_SIZE + ih_item_len(le_ih));
+	return M_DELETE; /* Delete this item. */
+    }
+    /* Calculate first position and size for cutting from item. */
+    *cut_size = -(ih_item_len(le_ih) -
+		      (pos_in_item (path) = new_file_length + 1 - le_ih_k_offset (le_ih)));
+    return M_CUT; /* Cut from this item. */
+}
+
+
+static inline int prepare_for_direntry_item (struct path * path,
+					     struct item_head * le_ih,
+					     struct inode * inode,
+					     loff_t new_file_length,
+					     int * cut_size)
+{
+    if (le_ih_k_offset (le_ih) == DOT_OFFSET && 
+	new_file_length == max_reiserfs_offset (inode)) {
+	RFALSE( ih_entry_count (le_ih) != 2,
+	        "PAP-5220: incorrect empty directory item (%h)", le_ih);
+	*cut_size = -(IH_SIZE + ih_item_len(le_ih));
+	return M_DELETE; /* Delete the directory item containing "." and ".." entry. */
+    }
+    
+    if ( ih_entry_count (le_ih) == 1 )  {
+	/* Delete the directory item such as there is one record only
+	   in this item*/
+	*cut_size = -(IH_SIZE + ih_item_len(le_ih));
+	return M_DELETE;
+    }
+    
+    /* Cut one record from the directory item. */
+    *cut_size = -(DEH_SIZE + entry_length (get_last_bh (path), le_ih, pos_in_item (path)));
+    return M_CUT; 
+}
+
+
+/*  If the path points to a directory or direct item, calculate mode and the size cut, for balance.
+    If the path points to an indirect item, remove some number of its unformatted nodes.
+    In case of file truncate calculate whether this item must be deleted/truncated or last
+    unformatted node of this item will be converted to a direct item.
+    This function returns a determination of what balance mode the calling function should employ. */
+static char  prepare_for_delete_or_cut(
+				       struct reiserfs_transaction_handle *th, 
+				       struct inode * inode,
+				       struct path         * p_s_path,
+				       const struct cpu_key      * p_s_item_key,
+				       int                 * p_n_removed,      /* Number of unformatted nodes which were removed
+										  from end of the file. */
+				       int                 * p_n_cut_size,
+				       unsigned long long    n_new_file_length /* MAX_KEY_OFFSET in case of delete. */
+    ) {
+    struct super_block  * p_s_sb = inode->i_sb;
+    struct item_head    * p_le_ih = PATH_PITEM_HEAD(p_s_path);
+    struct buffer_head  * p_s_bh = PATH_PLAST_BUFFER(p_s_path);
+
+    /* Stat_data item. */
+    if ( is_statdata_le_ih (p_le_ih) ) {
+
+	RFALSE( n_new_file_length != max_reiserfs_offset (inode),
+		"PAP-5210: mode must be M_DELETE");
+
+	*p_n_cut_size = -(IH_SIZE + ih_item_len(p_le_ih));
+	return M_DELETE;
+    }
+
+
+    /* Directory item. */
+    if ( is_direntry_le_ih (p_le_ih) )
+	return prepare_for_direntry_item (p_s_path, p_le_ih, inode, n_new_file_length, p_n_cut_size);
+
+    /* Direct item. */
+    if ( is_direct_le_ih (p_le_ih) )
+	return prepare_for_direct_item (p_s_path, p_le_ih, inode, n_new_file_length, p_n_cut_size);
+
+
+    /* Case of an indirect item. */
+    {
+	int                   n_unfm_number,    /* Number of the item unformatted nodes. */
+	    n_counter,
+	    n_blk_size;
+	__u32               * p_n_unfm_pointer; /* Pointer to the unformatted node number. */
+	__u32 tmp;
+	struct item_head      s_ih;           /* Item header. */
+	char                  c_mode;           /* Returned mode of the balance. */
+	int need_research;
+
+
+	n_blk_size = p_s_sb->s_blocksize;
+
+	/* Search for the needed object indirect item until there are no unformatted nodes to be removed. */
+	do  {
+	    need_research = 0;
+            p_s_bh = PATH_PLAST_BUFFER(p_s_path);
+	    /* Copy indirect item header to a temp variable. */
+	    copy_item_head(&s_ih, PATH_PITEM_HEAD(p_s_path));
+	    /* Calculate number of unformatted nodes in this item. */
+	    n_unfm_number = I_UNFM_NUM(&s_ih);
+
+	    RFALSE( ! is_indirect_le_ih(&s_ih) || ! n_unfm_number ||
+		    pos_in_item (p_s_path) + 1 !=  n_unfm_number,
+		    "PAP-5240: illegal item %h "
+		    "n_unfm_number = %d *p_n_pos_in_item = %d", 
+		    &s_ih, n_unfm_number, pos_in_item (p_s_path));
+
+	    /* Calculate balance mode and position in the item to remove unformatted nodes. */
+	    if ( n_new_file_length == max_reiserfs_offset (inode) ) {/* Case of delete. */
+		pos_in_item (p_s_path) = 0;
+		*p_n_cut_size = -(IH_SIZE + ih_item_len(&s_ih));
+		c_mode = M_DELETE;
+	    }
+	    else  { /* Case of truncate. */
+		if ( n_new_file_length < le_ih_k_offset (&s_ih) )  {
+		    pos_in_item (p_s_path) = 0;
+		    *p_n_cut_size = -(IH_SIZE + ih_item_len(&s_ih));
+		    c_mode = M_DELETE; /* Delete this item. */
+		}
+		else  {
+		    /* indirect item must be truncated starting from *p_n_pos_in_item-th position */
+		    pos_in_item (p_s_path) = (n_new_file_length + n_blk_size - le_ih_k_offset (&s_ih) ) >> p_s_sb->s_blocksize_bits;
+
+		    RFALSE( pos_in_item (p_s_path) > n_unfm_number,
+			    "PAP-5250: illegal position in the item");
+
+		    /* Either convert last unformatted node of indirect item to direct item or increase
+		       its free space.  */
+		    if ( pos_in_item (p_s_path) == n_unfm_number )  {
+			*p_n_cut_size = 0; /* Nothing to cut. */
+			return M_CONVERT; /* Maybe convert last unformatted node to the direct item. */
+		    }
+		    /* Calculate size to cut. */
+		    *p_n_cut_size = -(ih_item_len(&s_ih) - pos_in_item(p_s_path) * UNFM_P_SIZE);
+
+		    c_mode = M_CUT;     /* Cut from this indirect item. */
+		}
+	    }
+
+	    RFALSE( n_unfm_number <= pos_in_item (p_s_path),
+		    "PAP-5260: illegal position in the indirect item");
+
+	    /* pointers to be cut */
+	    n_unfm_number -= pos_in_item (p_s_path);
+	    /* Set pointer to the last unformatted node pointer that is to be cut. */
+	    p_n_unfm_pointer = (__u32 *)B_I_PITEM(p_s_bh, &s_ih) + I_UNFM_NUM(&s_ih) - 1 - *p_n_removed;
+
+
+	    /* We go through the unformatted nodes pointers of the indirect
+	       item and look for the unformatted nodes in the cache. If we
+	       found some of them we free it, zero corresponding indirect item
+	       entry and log buffer containing that indirect item. For this we
+	       need to prepare last path element for logging. If some
+	       unformatted node has b_count > 1 we must not free this
+	       unformatted node since it is in use. */
+	    reiserfs_prepare_for_journal(p_s_sb, p_s_bh, 1);
+	    // note: path could be changed, first line in for loop takes care
+	    // of it
+
+	    for (n_counter = *p_n_removed;
+		 n_counter < n_unfm_number; n_counter++, p_n_unfm_pointer-- ) {
+
+		if (item_moved (&s_ih, p_s_path)) {
+		    need_research = 1 ;
+		    break;
+		}
+		RFALSE( p_n_unfm_pointer < (__u32 *)B_I_PITEM(p_s_bh, &s_ih) ||
+			p_n_unfm_pointer > (__u32 *)B_I_PITEM(p_s_bh, &s_ih) + I_UNFM_NUM(&s_ih) - 1,
+			"vs-5265: pointer out of range");
+
+		/* Hole, nothing to remove. */
+		if ( ! get_block_num(p_n_unfm_pointer,0) )  { 
+			(*p_n_removed)++;
+			continue;
+		}
+
+		(*p_n_removed)++;
+
+		tmp = get_block_num(p_n_unfm_pointer,0);
+		put_block_num(p_n_unfm_pointer, 0, 0);
+		journal_mark_dirty (th, p_s_sb, p_s_bh);
+		inode->i_blocks -= p_s_sb->s_blocksize / 512;
+		reiserfs_free_block(th, tmp);
+		/* In case of big fragmentation it is possible that each block
+		   freed will cause dirtying of one more bitmap and then we will
+		   quickly overflow our transaction space. This is a
+		   counter-measure against that scenario */
+		if (journal_transaction_should_end(th, th->t_blocks_allocated)) {
+		    int orig_len_alloc = th->t_blocks_allocated ;
+		    pathrelse(p_s_path) ;
+
+		    journal_end(th, p_s_sb, orig_len_alloc) ;
+		    journal_begin(th, p_s_sb, orig_len_alloc) ;
+		    reiserfs_update_inode_transaction(inode) ;
+		    need_research = 1;
+		    break;
+		}
+
+		if ( item_moved (&s_ih, p_s_path) )  {
+			need_research = 1;
+			break ;
+		}
+	    }
+
+	    /* a trick.  If the buffer has been logged, this
+	    ** will do nothing.  If we've broken the loop without
+	    ** logging it, it will restore the buffer
+	    **
+	    */
+	    reiserfs_restore_prepared_buffer(p_s_sb, p_s_bh);
+
+	    /* This loop can be optimized. */
+	} while ( (*p_n_removed < n_unfm_number || need_research) &&
+		  search_for_position_by_key(p_s_sb, p_s_item_key, p_s_path) == POSITION_FOUND );
+
+	RFALSE( *p_n_removed < n_unfm_number, 
+		"PAP-5310: indirect item is not found");
+	RFALSE( item_moved (&s_ih, p_s_path), 
+		"after while, comp failed, retry") ;
+
+	if (c_mode == M_CUT)
+	    pos_in_item (p_s_path) *= UNFM_P_SIZE;
+	return c_mode;
+    }
+}
+
+
+/* Calculate bytes number which will be deleted or cutted in the balance. */
+int calc_deleted_bytes_number(
+    struct  tree_balance  * p_s_tb,
+    char                    c_mode
+    ) {
+    int                     n_del_size;
+    struct  item_head     * p_le_ih = PATH_PITEM_HEAD(p_s_tb->tb_path);
+
+    if ( is_statdata_le_ih (p_le_ih) )
+	return 0;
+
+    if ( is_direntry_le_ih (p_le_ih) ) {
+	// return EMPTY_DIR_SIZE; /* We delete emty directoris only. */
+	// we can't use EMPTY_DIR_SIZE, as old format dirs have a different
+	// empty size.  ick. FIXME, is this right?
+	//
+	return ih_item_len(p_le_ih);
+    }
+    n_del_size = ( c_mode == M_DELETE ) ? ih_item_len(p_le_ih) : -p_s_tb->insert_size[0];
+
+    if ( is_indirect_le_ih (p_le_ih) )
+	n_del_size = (n_del_size/UNFM_P_SIZE)*
+	  (PATH_PLAST_BUFFER(p_s_tb->tb_path)->b_size);// - get_ih_free_space (p_le_ih);
+    return n_del_size;
+}
+
+static void init_tb_struct(
+    struct reiserfs_transaction_handle *th,
+    struct tree_balance * p_s_tb,
+    struct super_block  * p_s_sb,
+    struct path         * p_s_path,
+    int                   n_size
+    ) {
+    memset (p_s_tb,'\0',sizeof(struct tree_balance));
+    p_s_tb->transaction_handle = th ;
+    p_s_tb->tb_sb = p_s_sb;
+    p_s_tb->tb_path = p_s_path;
+    PATH_OFFSET_PBUFFER(p_s_path, ILLEGAL_PATH_ELEMENT_OFFSET) = NULL;
+    PATH_OFFSET_POSITION(p_s_path, ILLEGAL_PATH_ELEMENT_OFFSET) = 0;
+    p_s_tb->insert_size[0] = n_size;
+}
+
+
+
+void padd_item (char * item, int total_length, int length)
+{
+    int i;
+
+    for (i = total_length; i > length; )
+	item [--i] = 0;
+}
+
+
+/* Delete object item. */
+int reiserfs_delete_item (struct reiserfs_transaction_handle *th, 
+			  struct path * p_s_path, /* Path to the deleted item. */
+			  const struct cpu_key * p_s_item_key, /* Key to search for the deleted item.  */
+			  struct inode * p_s_inode,/* inode is here just to update i_blocks */
+			  struct buffer_head  * p_s_un_bh)    /* NULL or unformatted node pointer.    */
+{
+    struct super_block * p_s_sb = p_s_inode->i_sb;
+    struct tree_balance   s_del_balance;
+    struct item_head      s_ih;
+    int                   n_ret_value,
+	n_del_size,
+	n_removed;
+
+#ifdef CONFIG_REISERFS_CHECK
+    char                  c_mode;
+    int			n_iter = 0;
+#endif
+
+    init_tb_struct(th, &s_del_balance, p_s_sb, p_s_path, 0/*size is unknown*/);
+
+    while ( 1 ) {
+	n_removed = 0;
+
+#ifdef CONFIG_REISERFS_CHECK
+	n_iter++;
+	c_mode =
+#endif
+	    prepare_for_delete_or_cut(th, p_s_inode, p_s_path, p_s_item_key, &n_removed, &n_del_size, max_reiserfs_offset (p_s_inode));
+
+	RFALSE( c_mode != M_DELETE, "PAP-5320: mode must be M_DELETE");
+
+	copy_item_head(&s_ih, PATH_PITEM_HEAD(p_s_path));
+	s_del_balance.insert_size[0] = n_del_size;
+
+	n_ret_value = fix_nodes(M_DELETE, &s_del_balance, NULL, 0);
+	if ( n_ret_value != REPEAT_SEARCH )
+	    break;
+
+	PROC_INFO_INC( p_s_sb, delete_item_restarted );
+
+	// file system changed, repeat search
+	n_ret_value = search_for_position_by_key(p_s_sb, p_s_item_key, p_s_path);
+	if (n_ret_value == IO_ERROR)
+	    break;
+	if (n_ret_value == FILE_NOT_FOUND) {
+	    reiserfs_warning (p_s_sb, "vs-5340: reiserfs_delete_item: "
+			      "no items of the file %K found\n", p_s_item_key);
+	    break;
+	}
+    } /* while (1) */
+
+    if ( n_ret_value != CARRY_ON ) {
+	unfix_nodes(&s_del_balance);
+	return 0;
+    }
+
+    // reiserfs_delete_item returns item length when success
+    n_ret_value = calc_deleted_bytes_number(&s_del_balance, M_DELETE);
+
+    if ( p_s_un_bh )  {
+	int off;
+        char *data ;
+
+	/* We are in direct2indirect conversion, so move tail contents
+           to the unformatted node */
+	/* note, we do the copy before preparing the buffer because we
+	** don't care about the contents of the unformatted node yet.
+	** the only thing we really care about is the direct item's data
+	** is in the unformatted node.
+	**
+	** Otherwise, we would have to call reiserfs_prepare_for_journal on
+	** the unformatted node, which might schedule, meaning we'd have to
+	** loop all the way back up to the start of the while loop.
+	**
+	** The unformatted node must be dirtied later on.  We can't be
+	** sure here if the entire tail has been deleted yet.
+        **
+        ** p_s_un_bh is from the page cache (all unformatted nodes are
+        ** from the page cache) and might be a highmem page.  So, we
+        ** can't use p_s_un_bh->b_data.  But, the page has already been
+        ** kmapped, so we can use page_address()
+	** -clm
+	*/
+
+        data = page_address(p_s_un_bh->b_page) ;
+	off = ((le_ih_k_offset (&s_ih) - 1) & (PAGE_CACHE_SIZE - 1));
+	memcpy(data + off,
+	       B_I_PITEM(PATH_PLAST_BUFFER(p_s_path), &s_ih), n_ret_value);
+    }
+
+    /* Perform balancing after all resources have been collected at once. */ 
+    do_balance(&s_del_balance, NULL, NULL, M_DELETE);
+
+    /* Return deleted body length */
+    return n_ret_value;
+}
+
+
+/* Summary Of Mechanisms For Handling Collisions Between Processes:
+
+ deletion of the body of the object is performed by iput(), with the
+ result that if multiple processes are operating on a file, the
+ deletion of the body of the file is deferred until the last process
+ that has an open inode performs its iput().
+
+ writes and truncates are protected from collisions by use of
+ semaphores.
+
+ creates, linking, and mknod are protected from collisions with other
+ processes by making the reiserfs_add_entry() the last step in the
+ creation, and then rolling back all changes if there was a collision.
+ - Hans
+*/
+
+
+/* this deletes item which never gets split */
+void reiserfs_delete_solid_item (struct reiserfs_transaction_handle *th,
+				 struct key * key)
+{
+    struct tree_balance tb;
+    INITIALIZE_PATH (path);
+    int item_len;
+    int tb_init = 0 ;
+    struct cpu_key cpu_key;
+    int retval;
+    
+    le_key2cpu_key (&cpu_key, key);
+    
+    while (1) {
+	retval = search_item (th->t_super, &cpu_key, &path);
+	if (retval == IO_ERROR) {
+	    reiserfs_warning (th->t_super, "vs-5350: reiserfs_delete_solid_item: "
+			      "i/o failure occurred trying to delete %K\n", &cpu_key);
+	    break;
+	}
+	if (retval != ITEM_FOUND) {
+	    pathrelse (&path);
+	    // No need for a warning, if there is just no free space to insert '..' item into the newly-created subdir
+	    if ( !( (unsigned long long) GET_HASH_VALUE (le_key_k_offset (le_key_version (key), key)) == 0 && \
+		 GET_GENERATION_NUMBER (le_key_k_offset (le_key_version (key), key)) == 1 ) )
+		reiserfs_warning (th->t_super, "vs-5355: reiserfs_delete_solid_item: %k not found\n", key);
+	    break;
+	}
+	if (!tb_init) {
+	    tb_init = 1 ;
+	    item_len = ih_item_len( PATH_PITEM_HEAD(&path) );
+	    init_tb_struct (th, &tb, th->t_super, &path, - (IH_SIZE + item_len));
+	}
+
+	retval = fix_nodes (M_DELETE, &tb, NULL, 0);
+	if (retval == REPEAT_SEARCH) {
+	    PROC_INFO_INC( th -> t_super, delete_solid_item_restarted );
+	    continue;
+	}
+
+	if (retval == CARRY_ON) {
+	    do_balance (&tb, 0, 0, M_DELETE);
+	    break;
+	}
+
+	// IO_ERROR, NO_DISK_SPACE, etc
+	reiserfs_warning (th->t_super, "vs-5360: reiserfs_delete_solid_item: "
+			  "could not delete %K due to fix_nodes failure\n", &cpu_key);
+	unfix_nodes (&tb);
+	break;
+    }
+
+    reiserfs_check_path(&path) ;
+}
+
+
+void reiserfs_delete_object (struct reiserfs_transaction_handle *th, struct inode * inode)
+{
+    inode->i_size = 0;
+
+    /* for directory this deletes item containing "." and ".." */
+    reiserfs_do_truncate (th, inode, NULL, 0/*no timestamp updates*/);
+    
+#if defined( USE_INODE_GENERATION_COUNTER )
+    if( !old_format_only ( th -> t_super ) )
+      {
+       __u32 *inode_generation;
+       
+       inode_generation = 
+         &th -> t_super -> u.reiserfs_sb.s_rs -> s_inode_generation;
+       *inode_generation = cpu_to_le32( le32_to_cpu( *inode_generation ) + 1 );
+      }
+/* USE_INODE_GENERATION_COUNTER */
+#endif
+    reiserfs_delete_solid_item (th, INODE_PKEY (inode));
+}
+
+
+static int maybe_indirect_to_direct (struct reiserfs_transaction_handle *th, 
+			      struct inode * p_s_inode,
+			      struct page *page, 
+			      struct path         * p_s_path,
+			      const struct cpu_key      * p_s_item_key,
+			      loff_t         n_new_file_size,
+			      char                * p_c_mode
+			      ) {
+    struct super_block * p_s_sb = p_s_inode->i_sb;
+    int n_block_size = p_s_sb->s_blocksize;
+    int cut_bytes;
+
+    if (n_new_file_size != p_s_inode->i_size)
+	BUG ();
+
+    /* the page being sent in could be NULL if there was an i/o error
+    ** reading in the last block.  The user will hit problems trying to
+    ** read the file, but for now we just skip the indirect2direct
+    */
+    if (atomic_read(&p_s_inode->i_count) > 1 || 
+        !tail_has_to_be_packed (p_s_inode) || 
+        !page || (p_s_inode->u.reiserfs_i.i_flags & i_nopack_mask)) {
+	// leave tail in an unformatted node	
+	*p_c_mode = M_SKIP_BALANCING;
+	cut_bytes = n_block_size - (n_new_file_size & (n_block_size - 1));
+	pathrelse(p_s_path);
+	return cut_bytes;
+    }
+    /* Permorm the conversion to a direct_item. */
+    /*return indirect_to_direct (p_s_inode, p_s_path, p_s_item_key, n_new_file_size, p_c_mode);*/
+    return indirect2direct (th, p_s_inode, page, p_s_path, p_s_item_key, n_new_file_size, p_c_mode);
+}
+
+
+/* we did indirect_to_direct conversion. And we have inserted direct
+   item successesfully, but there were no disk space to cut unfm
+   pointer being converted. Therefore we have to delete inserted
+   direct item(s) */
+static void indirect_to_direct_roll_back (struct reiserfs_transaction_handle *th, struct inode * inode, struct path * path)
+{
+    struct cpu_key tail_key;
+    int tail_len;
+    int removed;
+
+    make_cpu_key (&tail_key, inode, inode->i_size + 1, TYPE_DIRECT, 4);// !!!!
+    tail_key.key_length = 4;
+
+    tail_len = (cpu_key_k_offset (&tail_key) & (inode->i_sb->s_blocksize - 1)) - 1;
+    while (tail_len) {
+	/* look for the last byte of the tail */
+	if (search_for_position_by_key (inode->i_sb, &tail_key, path) == POSITION_NOT_FOUND)
+	    reiserfs_panic (inode->i_sb, "vs-5615: indirect_to_direct_roll_back: found invalid item");
+	RFALSE( path->pos_in_item != ih_item_len(PATH_PITEM_HEAD (path)) - 1,
+	        "vs-5616: appended bytes found");
+	PATH_LAST_POSITION (path) --;
+	
+	removed = reiserfs_delete_item (th, path, &tail_key, inode, 0/*unbh not needed*/);
+	RFALSE( removed <= 0 || removed > tail_len,
+	        "vs-5617: there was tail %d bytes, removed item length %d bytes",
+                tail_len, removed);
+	tail_len -= removed;
+	set_cpu_key_k_offset (&tail_key, cpu_key_k_offset (&tail_key) - removed);
+    }
+    reiserfs_warning (inode->i_sb, "indirect_to_direct_roll_back: indirect_to_direct conversion has been rolled back due to lack of disk space\n");
+    //mark_file_without_tail (inode);
+    mark_inode_dirty (inode);
+}
+
+
+/* (Truncate or cut entry) or delete object item. Returns < 0 on failure */
+int reiserfs_cut_from_item (struct reiserfs_transaction_handle *th, 
+			    struct path * p_s_path,
+			    struct cpu_key * p_s_item_key,
+			    struct inode * p_s_inode,
+			    struct page *page, 
+			    loff_t n_new_file_size)
+{
+    struct super_block * p_s_sb = p_s_inode->i_sb;
+    /* Every function which is going to call do_balance must first
+       create a tree_balance structure.  Then it must fill up this
+       structure by using the init_tb_struct and fix_nodes functions.
+       After that we can make tree balancing. */
+    struct tree_balance s_cut_balance;
+    int n_cut_size = 0,        /* Amount to be cut. */
+	n_ret_value = CARRY_ON,
+	n_removed = 0,     /* Number of the removed unformatted nodes. */
+	n_is_inode_locked = 0;
+    char                c_mode;            /* Mode of the balance. */
+    int retval2 = -1;
+    
+    
+    init_tb_struct(th, &s_cut_balance, p_s_inode->i_sb, p_s_path, n_cut_size);
+
+
+    /* Repeat this loop until we either cut the item without needing
+       to balance, or we fix_nodes without schedule occuring */
+    while ( 1 ) {
+	/* Determine the balance mode, position of the first byte to
+	   be cut, and size to be cut.  In case of the indirect item
+	   free unformatted nodes which are pointed to by the cut
+	   pointers. */
+      
+	c_mode = prepare_for_delete_or_cut(th, p_s_inode, p_s_path, p_s_item_key, &n_removed, 
+					   &n_cut_size, n_new_file_size);
+	if ( c_mode == M_CONVERT )  {
+	    /* convert last unformatted node to direct item or leave
+               tail in the unformatted node */
+	    RFALSE( n_ret_value != CARRY_ON, "PAP-5570: can not convert twice");
+
+	    n_ret_value = maybe_indirect_to_direct (th, p_s_inode, page, p_s_path, p_s_item_key,
+						    n_new_file_size, &c_mode);
+	    if ( c_mode == M_SKIP_BALANCING )
+		/* tail has been left in the unformatted node */
+		return n_ret_value;
+
+	    n_is_inode_locked = 1;
+	  
+	    /* removing of last unformatted node will change value we
+               have to return to truncate. Save it */
+	    retval2 = n_ret_value;
+	    /*retval2 = p_s_sb->s_blocksize - (n_new_file_size & (p_s_sb->s_blocksize - 1));*/
+	  
+	    /* So, we have performed the first part of the conversion:
+	       inserting the new direct item.  Now we are removing the
+	       last unformatted node pointer. Set key to search for
+	       it. */
+      	    set_cpu_key_k_type (p_s_item_key, TYPE_INDIRECT);
+	    p_s_item_key->key_length = 4;
+	    n_new_file_size -= (n_new_file_size & (p_s_sb->s_blocksize - 1));
+	    set_cpu_key_k_offset (p_s_item_key, n_new_file_size + 1);
+	    if ( search_for_position_by_key(p_s_sb, p_s_item_key, p_s_path) == POSITION_NOT_FOUND ){
+		print_block (PATH_PLAST_BUFFER (p_s_path), 3, PATH_LAST_POSITION (p_s_path) - 1, PATH_LAST_POSITION (p_s_path) + 1);
+		reiserfs_panic(p_s_sb, "PAP-5580: reiserfs_cut_from_item: item to convert does not exist (%K)", p_s_item_key);
+	    }
+	    continue;
+	}
+	if (n_cut_size == 0) {
+	    pathrelse (p_s_path);
+	    return 0;
+	}
+
+	s_cut_balance.insert_size[0] = n_cut_size;
+	
+	n_ret_value = fix_nodes(c_mode, &s_cut_balance, NULL, 0);
+      	if ( n_ret_value != REPEAT_SEARCH )
+	    break;
+	
+	PROC_INFO_INC( p_s_sb, cut_from_item_restarted );
+
+	n_ret_value = search_for_position_by_key(p_s_sb, p_s_item_key, p_s_path);
+	if (n_ret_value == POSITION_FOUND)
+	    continue;
+
+	reiserfs_warning (p_s_sb, "PAP-5610: reiserfs_cut_from_item: item %K not found\n", p_s_item_key);
+	unfix_nodes (&s_cut_balance);
+	return (n_ret_value == IO_ERROR) ? -EIO : -ENOENT;
+    } /* while */
+  
+    // check fix_nodes results (IO_ERROR or NO_DISK_SPACE)
+    if ( n_ret_value != CARRY_ON ) {
+	if ( n_is_inode_locked ) {
+	    // FIXME: this seems to be not needed: we are always able
+	    // to cut item
+	    indirect_to_direct_roll_back (th, p_s_inode, p_s_path);
+	}
+	if (n_ret_value == NO_DISK_SPACE)
+	    reiserfs_warning (p_s_sb, "NO_DISK_SPACE\n");
+	unfix_nodes (&s_cut_balance);
+	return -EIO;
+    }
+
+    /* go ahead and perform balancing */
+    
+    RFALSE( c_mode == M_PASTE || c_mode == M_INSERT, "illegal mode");
+
+    /* Calculate number of bytes that need to be cut from the item. */
+    if (retval2 == -1)
+	n_ret_value = calc_deleted_bytes_number(&s_cut_balance, c_mode);
+    else
+	n_ret_value = retval2;
+    
+    if ( c_mode == M_DELETE ) {
+	struct item_head * p_le_ih = PATH_PITEM_HEAD (s_cut_balance.tb_path);
+	
+	if ( is_direct_le_ih (p_le_ih) && (le_ih_k_offset (p_le_ih) & (p_s_sb->s_blocksize - 1)) == 1 ) {
+	    /* we delete first part of tail which was stored in direct
+               item(s) */
+	    // FIXME: this is to keep 3.5 happy
+	    p_s_inode->u.reiserfs_i.i_first_direct_byte = U32_MAX;
+	    p_s_inode->i_blocks -= p_s_sb->s_blocksize / 512;
+	}
+    }
+
+#ifdef CONFIG_REISERFS_CHECK
+    if (n_is_inode_locked) {
+	struct item_head * le_ih = PATH_PITEM_HEAD (s_cut_balance.tb_path);
+	/* we are going to complete indirect2direct conversion. Make
+           sure, that we exactly remove last unformatted node pointer
+           of the item */
+	if (!is_indirect_le_ih (le_ih))
+	    reiserfs_panic (p_s_sb, "vs-5652: reiserfs_cut_from_item: "
+			    "item must be indirect %h", le_ih);
+
+	if (c_mode == M_DELETE && ih_item_len(le_ih) != UNFM_P_SIZE)
+	    reiserfs_panic (p_s_sb, "vs-5653: reiserfs_cut_from_item: "
+			    "completing indirect2direct conversion indirect item %h "
+			    "being deleted must be of 4 byte long", le_ih);
+
+	if (c_mode == M_CUT && s_cut_balance.insert_size[0] != -UNFM_P_SIZE) {
+	    reiserfs_panic (p_s_sb, "vs-5654: reiserfs_cut_from_item: "
+			    "can not complete indirect2direct conversion of %h (CUT, insert_size==%d)",
+			    le_ih, s_cut_balance.insert_size[0]);
+	}
+	/* it would be useful to make sure, that right neighboring
+           item is direct item of this file */
+    }
+#endif
+    
+    do_balance(&s_cut_balance, NULL, NULL, c_mode);
+    if ( n_is_inode_locked ) {
+	/* we've done an indirect->direct conversion.  when the data block
+	** was freed, it was removed from the list of blocks that must
+	** be flushed before the transaction commits, so we don't need to
+	** deal with it here.
+	*/
+	p_s_inode->u.reiserfs_i.i_flags &= ~i_pack_on_close_mask;
+    }
+    return n_ret_value;
+}
+
+
+static void truncate_directory (struct reiserfs_transaction_handle *th, struct inode * inode)
+{
+    if (inode->i_nlink)
+	reiserfs_warning (th->t_super, "vs-5655: truncate_directory: link count != 0\n");
+
+    set_le_key_k_offset (KEY_FORMAT_3_5, INODE_PKEY (inode), DOT_OFFSET);
+    set_le_key_k_type (KEY_FORMAT_3_5, INODE_PKEY (inode), TYPE_DIRENTRY);
+    reiserfs_delete_solid_item (th, INODE_PKEY (inode));
+
+    set_le_key_k_offset (KEY_FORMAT_3_5, INODE_PKEY (inode), SD_OFFSET);
+    set_le_key_k_type (KEY_FORMAT_3_5, INODE_PKEY (inode), TYPE_STAT_DATA);    
+}
+
+
+
+
+/* Truncate file to the new size. Note, this must be called with a transaction
+   already started */
+void reiserfs_do_truncate (struct reiserfs_transaction_handle *th, 
+			   struct  inode * p_s_inode, /* ->i_size contains new
+                                                         size */
+			   struct page *page, /* up to date for last block */
+			   int update_timestamps  /* when it is called by
+						     file_release to convert
+						     the tail - no timestamps
+						     should be updated */
+    ) {
+    INITIALIZE_PATH (s_search_path);       /* Path to the current object item. */
+    struct item_head    * p_le_ih;         /* Pointer to an item header. */
+    struct cpu_key      s_item_key;     /* Key to search for a previous file item. */
+    loff_t         n_file_size,    /* Old file size. */
+	n_new_file_size;/* New file size. */
+    int                   n_deleted;      /* Number of deleted or truncated bytes. */
+    int retval;
+
+    if ( ! (S_ISREG(p_s_inode->i_mode) || S_ISDIR(p_s_inode->i_mode) || S_ISLNK(p_s_inode->i_mode)) )
+	return;
+
+    if (S_ISDIR(p_s_inode->i_mode)) {
+	// deletion of directory - no need to update timestamps
+	truncate_directory (th, p_s_inode);
+	return;
+    }
+
+    /* Get new file size. */
+    n_new_file_size = p_s_inode->i_size;
+
+    // FIXME: note, that key type is unimportant here
+    make_cpu_key (&s_item_key, p_s_inode, max_reiserfs_offset (p_s_inode), TYPE_DIRECT, 3);
+
+    retval = search_for_position_by_key(p_s_inode->i_sb, &s_item_key, &s_search_path);
+    if (retval == IO_ERROR) {
+	reiserfs_warning (p_s_inode->i_sb, "vs-5657: reiserfs_do_truncate: "
+			  "i/o failure occurred trying to truncate %K\n", &s_item_key);
+	return;
+    }
+    if (retval == POSITION_FOUND || retval == FILE_NOT_FOUND) {
+	pathrelse (&s_search_path);
+	reiserfs_warning (p_s_inode->i_sb, "PAP-5660: reiserfs_do_truncate: "
+			  "wrong result %d of search for %K\n", retval, &s_item_key);
+	return;
+    }
+
+    s_search_path.pos_in_item --;
+
+    /* Get real file size (total length of all file items) */
+    p_le_ih = PATH_PITEM_HEAD(&s_search_path);
+    if ( is_statdata_le_ih (p_le_ih) )
+	n_file_size = 0;
+    else {
+	loff_t offset = le_ih_k_offset (p_le_ih);
+	int bytes = op_bytes_number (p_le_ih,p_s_inode->i_sb->s_blocksize);
+
+	/* this may mismatch with real file size: if last direct item
+           had no padding zeros and last unformatted node had no free
+           space, this file would have this file size */
+	n_file_size = offset + bytes - 1;
+    }
+
+    if ( n_file_size == 0 || n_file_size < n_new_file_size ) {
+	goto update_and_out ;
+    }
+
+    /* Update key to search for the last file item. */
+    set_cpu_key_k_offset (&s_item_key, n_file_size);
+
+    do  {
+	/* Cut or delete file item. */
+	n_deleted = reiserfs_cut_from_item(th, &s_search_path, &s_item_key, p_s_inode,  page, n_new_file_size);
+	if (n_deleted < 0) {
+	    reiserfs_warning (th->t_super, "vs-5665: reiserfs_truncate_file: cut_from_item failed\n");
+	    reiserfs_check_path(&s_search_path) ;
+	    return;
+	}
+
+	RFALSE( n_deleted > n_file_size,
+		"PAP-5670: reiserfs_truncate_file returns too big number: deleted %d, file_size %lu, item_key %K",
+		n_deleted, n_file_size, &s_item_key);
+
+	/* Change key to search the last file item. */
+	n_file_size -= n_deleted;
+
+	set_cpu_key_k_offset (&s_item_key, n_file_size);
+
+	/* While there are bytes to truncate and previous file item is presented in the tree. */
+
+	/*
+	** This loop could take a really long time, and could log 
+	** many more blocks than a transaction can hold.  So, we do a polite
+	** journal end here, and if the transaction needs ending, we make
+	** sure the file is consistent before ending the current trans
+	** and starting a new one
+	*/
+        if (journal_transaction_should_end(th, th->t_blocks_allocated)) {
+	  int orig_len_alloc = th->t_blocks_allocated ;
+	  decrement_counters_in_path(&s_search_path) ;
+
+	  if (update_timestamps) {
+	      p_s_inode->i_mtime = p_s_inode->i_ctime = CURRENT_TIME;
+	  } 
+	  reiserfs_update_sd(th, p_s_inode) ;
+
+	  journal_end(th, p_s_inode->i_sb, orig_len_alloc) ;
+	  journal_begin(th, p_s_inode->i_sb, orig_len_alloc) ;
+	  reiserfs_update_inode_transaction(p_s_inode) ;
+	}
+    } while ( n_file_size > ROUND_UP (n_new_file_size) &&
+	      search_for_position_by_key(p_s_inode->i_sb, &s_item_key, &s_search_path) == POSITION_FOUND )  ;
+
+    RFALSE( n_file_size > ROUND_UP (n_new_file_size),
+	    "PAP-5680: truncate did not finish: new_file_size %Ld, current %Ld, oid %d\n",
+	    n_new_file_size, n_file_size, s_item_key.on_disk_key.k_objectid);
+
+update_and_out:
+    if (update_timestamps) {
+	// this is truncate, not file closing
+	p_s_inode->i_mtime = p_s_inode->i_ctime = CURRENT_TIME;
+    }
+    reiserfs_update_sd (th, p_s_inode);
+
+    pathrelse(&s_search_path) ;
+}
+
+
+#ifdef CONFIG_REISERFS_CHECK
+// this makes sure, that we __append__, not overwrite or add holes
+static void check_research_for_paste (struct path * path, 
+				      const struct cpu_key * p_s_key)
+{
+    struct item_head * found_ih = get_ih (path);
+    
+    if (is_direct_le_ih (found_ih)) {
+	if (le_ih_k_offset (found_ih) + op_bytes_number (found_ih, get_last_bh (path)->b_size) !=
+	    cpu_key_k_offset (p_s_key) ||
+	    op_bytes_number (found_ih, get_last_bh (path)->b_size) != pos_in_item (path))
+	    reiserfs_panic (0, "PAP-5720: check_research_for_paste: "
+			    "found direct item %h or position (%d) does not match to key %K",
+			    found_ih, pos_in_item (path), p_s_key);
+    }
+    if (is_indirect_le_ih (found_ih)) {
+	if (le_ih_k_offset (found_ih) + op_bytes_number (found_ih, get_last_bh (path)->b_size) != cpu_key_k_offset (p_s_key) || 
+	    I_UNFM_NUM (found_ih) != pos_in_item (path) ||
+	    get_ih_free_space (found_ih) != 0)
+	    reiserfs_panic (0, "PAP-5730: check_research_for_paste: "
+			    "found indirect item (%h) or position (%d) does not match to key (%K)",
+			    found_ih, pos_in_item (path), p_s_key);
+    }
+}
+#endif /* config reiserfs check */
+
+
+/* Paste bytes to the existing item. Returns bytes number pasted into the item. */
+int reiserfs_paste_into_item (struct reiserfs_transaction_handle *th, 
+			      struct path         * p_s_search_path,	/* Path to the pasted item.          */
+			      const struct cpu_key      * p_s_key,        	/* Key to search for the needed item.*/
+			      const char          * p_c_body,       	/* Pointer to the bytes to paste.    */
+			      int                   n_pasted_size)  	/* Size of pasted bytes.             */
+{
+    struct tree_balance s_paste_balance;
+    int                 retval;
+
+    init_tb_struct(th, &s_paste_balance, th->t_super, p_s_search_path, n_pasted_size);
+#ifdef DISPLACE_NEW_PACKING_LOCALITIES
+    s_paste_balance.key = p_s_key->on_disk_key;
+#endif
+    
+    while ( (retval = fix_nodes(M_PASTE, &s_paste_balance, NULL, p_c_body)) == REPEAT_SEARCH ) {
+	/* file system changed while we were in the fix_nodes */
+	PROC_INFO_INC( th -> t_super, paste_into_item_restarted );
+	retval = search_for_position_by_key (th->t_super, p_s_key, p_s_search_path);
+	if (retval == IO_ERROR) {
+	    retval = -EIO ;
+	    goto error_out ;
+	}
+	if (retval == POSITION_FOUND) {
+	    reiserfs_warning (th->t_super, "PAP-5710: reiserfs_paste_into_item: entry or pasted byte (%K) exists\n", p_s_key);
+	    retval = -EEXIST ;
+	    goto error_out ;
+	}
+	
+#ifdef CONFIG_REISERFS_CHECK
+	check_research_for_paste (p_s_search_path, p_s_key);
+#endif
+    }
+
+    /* Perform balancing after all resources are collected by fix_nodes, and
+       accessing them will not risk triggering schedule. */
+    if ( retval == CARRY_ON ) {
+	do_balance(&s_paste_balance, NULL/*ih*/, p_c_body, M_PASTE);
+	return 0;
+    }
+    retval = (retval == NO_DISK_SPACE) ? -ENOSPC : -EIO;
+error_out:
+    /* this also releases the path */
+    unfix_nodes(&s_paste_balance);
+    return retval ;
+}
+
+
+/* Insert new item into the buffer at the path. */
+int reiserfs_insert_item(struct reiserfs_transaction_handle *th, 
+			 struct path         * 	p_s_path,         /* Path to the inserteded item.         */
+			 const struct cpu_key      * key,
+			 struct item_head    * 	p_s_ih,           /* Pointer to the item header to insert.*/
+			 const char          * 	p_c_body)         /* Pointer to the bytes to insert.      */
+{
+    struct tree_balance s_ins_balance;
+    int                 retval;
+
+    init_tb_struct(th, &s_ins_balance, th->t_super, p_s_path, IH_SIZE + ih_item_len(p_s_ih));
+#ifdef DISPLACE_NEW_PACKING_LOCALITIES
+    s_ins_balance.key = key->on_disk_key;
+#endif
+
+    /*
+    if (p_c_body == 0)
+      n_zeros_num = ih_item_len(p_s_ih);
+    */
+    //    le_key2cpu_key (&key, &(p_s_ih->ih_key));
+
+    while ( (retval = fix_nodes(M_INSERT, &s_ins_balance, p_s_ih, p_c_body)) == REPEAT_SEARCH) {
+	/* file system changed while we were in the fix_nodes */
+	PROC_INFO_INC( th -> t_super, insert_item_restarted );
+	retval = search_item (th->t_super, key, p_s_path);
+	if (retval == IO_ERROR) {
+	    retval = -EIO;
+	    goto error_out ;
+	}
+	if (retval == ITEM_FOUND) {
+	    reiserfs_warning (th->t_super, "PAP-5760: reiserfs_insert_item: "
+			      "key %K already exists in the tree\n", key);
+	    retval = -EEXIST ;
+	    goto error_out; 
+	}
+    }
+
+    /* make balancing after all resources will be collected at a time */ 
+    if ( retval == CARRY_ON ) {
+	do_balance (&s_ins_balance, p_s_ih, p_c_body, M_INSERT);
+	return 0;
+    }
+
+    retval = (retval == NO_DISK_SPACE) ? -ENOSPC : -EIO;
+error_out:
+    /* also releases the path */
+    unfix_nodes(&s_ins_balance);
+    return retval; 
+}
+
+
+
+
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
new file mode 100644
index 00000000000000..13321240e19764
--- /dev/null
+++ b/fs/reiserfs/super.c
@@ -0,0 +1,1390 @@
+/*
+ * Copyright 2000-2002 by Hans Reiser, licensing governed by reiserfs/README
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/blkdev.h>
+#include <linux/vmalloc.h>
+#include <asm/uaccess.h>
+#include <linux/reiserfs_fs.h>
+#include <linux/smp_lock.h>
+#include <linux/locks.h>
+#include <linux/init.h>
+
+#define REISERFS_OLD_BLOCKSIZE 4096
+#define REISERFS_SUPER_MAGIC_STRING_OFFSET_NJ 20
+
+const char reiserfs_3_5_magic_string[] = REISERFS_SUPER_MAGIC_STRING;
+const char reiserfs_3_6_magic_string[] = REISER2FS_SUPER_MAGIC_STRING;
+const char reiserfs_jr_magic_string[] = REISER2FS_JR_SUPER_MAGIC_STRING;
+
+int is_reiserfs_3_5 (struct reiserfs_super_block * rs)
+{
+  return !strncmp (rs->s_v1.s_magic, reiserfs_3_5_magic_string,
+		   strlen (reiserfs_3_5_magic_string));
+}
+
+
+int is_reiserfs_3_6 (struct reiserfs_super_block * rs)
+{
+  return !strncmp (rs->s_v1.s_magic, reiserfs_3_6_magic_string,
+ 		   strlen (reiserfs_3_6_magic_string));
+}
+
+
+int is_reiserfs_jr (struct reiserfs_super_block * rs)
+{
+  return !strncmp (rs->s_v1.s_magic, reiserfs_jr_magic_string,
+ 		   strlen (reiserfs_jr_magic_string));
+}
+
+
+static int is_any_reiserfs_magic_string (struct reiserfs_super_block * rs)
+{
+  return (is_reiserfs_3_5 (rs) || is_reiserfs_3_6 (rs) ||
+	  is_reiserfs_jr (rs));
+}
+
+static int reiserfs_remount (struct super_block * s, int * flags, char * data);
+static int reiserfs_statfs (struct super_block * s, struct statfs * buf);
+
+static void reiserfs_write_super (struct super_block * s)
+{
+
+  int dirty = 0 ;
+  lock_kernel() ;
+  if (!(s->s_flags & MS_RDONLY)) {
+    dirty = flush_old_commits(s, 1) ;
+  }
+  s->s_dirt = dirty;
+  unlock_kernel() ;
+}
+
+static void reiserfs_write_super_lockfs (struct super_block * s)
+{
+
+  int dirty = 0 ;
+  struct reiserfs_transaction_handle th ;
+  lock_kernel() ;
+  if (!(s->s_flags & MS_RDONLY)) {
+    journal_begin(&th, s, 1) ;
+    reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s), 1);
+    journal_mark_dirty(&th, s, SB_BUFFER_WITH_SB (s));
+    reiserfs_block_writes(&th) ;
+    journal_end(&th, s, 1) ;
+  }
+  s->s_dirt = dirty;
+  unlock_kernel() ;
+}
+
+void reiserfs_unlockfs(struct super_block *s) {
+  reiserfs_allow_writes(s) ;
+}
+
+extern const struct key  MAX_KEY;
+
+
+/* this is used to delete "save link" when there are no items of a
+   file it points to. It can either happen if unlink is completed but
+   "save unlink" removal, or if file has both unlink and truncate
+   pending and as unlink completes first (because key of "save link"
+   protecting unlink is bigger that a key lf "save link" which
+   protects truncate), so there left no items to make truncate
+   completion on */
+static void remove_save_link_only (struct super_block * s, struct key * key, int oid_free)
+{
+    struct reiserfs_transaction_handle th;
+
+     /* we are going to do one balancing */
+     journal_begin (&th, s, JOURNAL_PER_BALANCE_CNT);
+ 
+     reiserfs_delete_solid_item (&th, key);
+     if (oid_free)
+        /* removals are protected by direct items */
+        reiserfs_release_objectid (&th, le32_to_cpu (key->k_objectid));
+
+     journal_end (&th, s, JOURNAL_PER_BALANCE_CNT);
+}
+ 
+ 
+/* look for uncompleted unlinks and truncates and complete them */
+static void finish_unfinished (struct super_block * s)
+{
+    INITIALIZE_PATH (path);
+    struct cpu_key max_cpu_key, obj_key;
+    struct key save_link_key;
+    int retval;
+    struct item_head * ih;
+    struct buffer_head * bh;
+    int item_pos;
+    char * item;
+    int done;
+    struct inode * inode;
+    int truncate;
+ 
+ 
+    /* compose key to look for "save" links */
+    max_cpu_key.version = KEY_FORMAT_3_5;
+    max_cpu_key.on_disk_key = MAX_KEY;
+    max_cpu_key.key_length = 3;
+ 
+    done = 0;
+    s -> u.reiserfs_sb.s_is_unlinked_ok = 1;
+    while (1) {
+        retval = search_item (s, &max_cpu_key, &path);
+        if (retval != ITEM_NOT_FOUND) {
+            reiserfs_warning (s, "vs-2140: finish_unfinished: search_by_key returned %d\n",
+                              retval);
+            break;
+        }
+        
+        bh = get_last_bh (&path);
+        item_pos = get_item_pos (&path);
+        if (item_pos != B_NR_ITEMS (bh)) {
+            reiserfs_warning (s, "vs-2060: finish_unfinished: wrong position found\n");
+            break;
+        }
+        item_pos --;
+        ih = B_N_PITEM_HEAD (bh, item_pos);
+ 
+        if (le32_to_cpu (ih->ih_key.k_dir_id) != MAX_KEY_OBJECTID)
+            /* there are no "save" links anymore */
+            break;
+ 
+        save_link_key = ih->ih_key;
+        if (is_indirect_le_ih (ih))
+            truncate = 1;
+        else
+            truncate = 0;
+ 
+        /* reiserfs_iget needs k_dirid and k_objectid only */
+        item = B_I_PITEM (bh, ih);
+        obj_key.on_disk_key.k_dir_id = le32_to_cpu (*(__u32 *)item);
+        obj_key.on_disk_key.k_objectid = le32_to_cpu (ih->ih_key.k_objectid);
+	obj_key.on_disk_key.u.k_offset_v1.k_offset = 0;
+	obj_key.on_disk_key.u.k_offset_v1.k_uniqueness = 0;
+	
+        pathrelse (&path);
+ 
+        inode = reiserfs_iget (s, &obj_key);
+        if (!inode) {
+            /* the unlink almost completed, it just did not manage to remove
+	       "save" link and release objectid */
+            reiserfs_warning (s, "vs-2180: finish_unfinished: iget failed for %K\n",
+                              &obj_key);
+            remove_save_link_only (s, &save_link_key, 1);
+            continue;
+        }
+
+	if (!truncate && inode->i_nlink) {
+	    /* file is not unlinked */
+            reiserfs_warning (s, "vs-2185: finish_unfinished: file %K is not unlinked\n",
+                              &obj_key);
+            remove_save_link_only (s, &save_link_key, 0);
+            continue;
+	}
+
+	if (truncate && S_ISDIR (inode->i_mode) ) {
+	    /* We got a truncate request for a dir which is impossible.
+	       The only imaginable way is to execute unfinished truncate request
+	       then boot into old kernel, remove the file and create dir with
+	       the same key. */
+	    reiserfs_warning(s, "green-2101: impossible truncate on a directory %k. Please report\n", INODE_PKEY (inode));
+	    remove_save_link_only (s, &save_link_key, 0);
+	    truncate = 0;
+	    iput (inode); 
+	    continue;
+	}
+ 
+        if (truncate) {
+            inode -> u.reiserfs_i.i_flags |= i_link_saved_truncate_mask;
+            /* not completed truncate found. New size was committed together
+	       with "save" link */
+            reiserfs_warning (s, "Truncating %k to %Ld ..",
+                              INODE_PKEY (inode), inode->i_size);
+            reiserfs_truncate_file (inode, 0/*don't update modification time*/);
+            remove_save_link (inode, truncate);
+        } else {
+            inode -> u.reiserfs_i.i_flags |= i_link_saved_unlink_mask;
+            /* not completed unlink (rmdir) found */
+            reiserfs_warning (s, "Removing %k..", INODE_PKEY (inode));
+            /* removal gets completed in iput */
+        }
+ 
+        iput (inode);
+        printk ("done\n");
+        done ++;
+    }
+    s -> u.reiserfs_sb.s_is_unlinked_ok = 0;
+     
+    pathrelse (&path);
+    if (done)
+        reiserfs_warning (s, "There were %d uncompleted unlinks/truncates. "
+                          "Completed\n", done);
+}
+ 
+/* to protect file being unlinked from getting lost we "safe" link files
+   being unlinked. This link will be deleted in the same transaction with last
+   item of file. mounting the filesytem we scan all these links and remove
+   files which almost got lost */
+void add_save_link (struct reiserfs_transaction_handle * th,
+		    struct inode * inode, int truncate)
+{
+    INITIALIZE_PATH (path);
+    int retval;
+    struct cpu_key key;
+    struct item_head ih;
+    __u32 link;
+
+    /* file can only get one "save link" of each kind */
+    RFALSE( truncate && 
+	    ( inode -> u.reiserfs_i.i_flags & i_link_saved_truncate_mask ),
+	    "saved link already exists for truncated inode %lx",
+	    ( long ) inode -> i_ino );
+    RFALSE( !truncate && 
+	    ( inode -> u.reiserfs_i.i_flags & i_link_saved_unlink_mask ),
+	    "saved link already exists for unlinked inode %lx",
+	    ( long ) inode -> i_ino );
+
+    /* setup key of "save" link */
+    key.version = KEY_FORMAT_3_5;
+    key.on_disk_key.k_dir_id = MAX_KEY_OBJECTID;
+    key.on_disk_key.k_objectid = inode->i_ino;
+    if (!truncate) {
+	/* unlink, rmdir, rename */
+	set_cpu_key_k_offset (&key, 1 + inode->i_sb->s_blocksize);
+	set_cpu_key_k_type (&key, TYPE_DIRECT);
+
+	/* item head of "safe" link */
+	make_le_item_head (&ih, &key, key.version, 1 + inode->i_sb->s_blocksize, TYPE_DIRECT,
+			   4/*length*/, 0xffff/*free space*/);
+    } else {
+	/* truncate */
+	if (S_ISDIR (inode->i_mode))
+	    reiserfs_warning(inode->i_sb, "green-2102: Adding a truncate savelink for a directory %k! Please report\n", INODE_PKEY(inode));
+	set_cpu_key_k_offset (&key, 1);
+	set_cpu_key_k_type (&key, TYPE_INDIRECT);
+
+	/* item head of "safe" link */
+	make_le_item_head (&ih, &key, key.version, 1, TYPE_INDIRECT,
+			   4/*length*/, 0/*free space*/);
+    }
+    key.key_length = 3;
+
+    /* look for its place in the tree */
+    retval = search_item (inode->i_sb, &key, &path);
+    if (retval != ITEM_NOT_FOUND) {
+	if ( retval != -ENOSPC )
+	    reiserfs_warning (inode->i_sb, "vs-2100: add_save_link:"
+			  "search_by_key (%K) returned %d\n", &key, retval);
+	pathrelse (&path);
+	return;
+    }
+
+    /* body of "save" link */
+    link = INODE_PKEY (inode)->k_dir_id;
+
+    /* put "save" link inot tree */
+    retval = reiserfs_insert_item (th, &path, &key, &ih, (char *)&link);
+    if (retval) {
+	if (retval != -ENOSPC)
+	    reiserfs_warning (inode->i_sb, "vs-2120: add_save_link: insert_item returned %d\n",
+			  retval);
+    } else {
+	if( truncate )
+	    inode -> u.reiserfs_i.i_flags |= i_link_saved_truncate_mask;
+	else
+	    inode -> u.reiserfs_i.i_flags |= i_link_saved_unlink_mask;
+    }
+}
+
+
+/* this opens transaction unlike add_save_link */
+void remove_save_link (struct inode * inode, int truncate)
+{
+    struct reiserfs_transaction_handle th;
+    struct key key;
+ 
+ 
+    /* we are going to do one balancing only */
+    journal_begin (&th, inode->i_sb, JOURNAL_PER_BALANCE_CNT);
+ 
+    /* setup key of "save" link */
+    key.k_dir_id = cpu_to_le32 (MAX_KEY_OBJECTID);
+    key.k_objectid = INODE_PKEY (inode)->k_objectid;
+    if (!truncate) {
+        /* unlink, rmdir, rename */
+        set_le_key_k_offset (KEY_FORMAT_3_5, &key,
+			     1 + inode->i_sb->s_blocksize);
+        set_le_key_k_type (KEY_FORMAT_3_5, &key, TYPE_DIRECT);
+    } else {
+        /* truncate */
+        set_le_key_k_offset (KEY_FORMAT_3_5, &key, 1);
+        set_le_key_k_type (KEY_FORMAT_3_5, &key, TYPE_INDIRECT);
+    }
+ 
+    if( ( truncate && 
+          ( inode -> u.reiserfs_i.i_flags & i_link_saved_truncate_mask ) ) ||
+        ( !truncate && 
+          ( inode -> u.reiserfs_i.i_flags & i_link_saved_unlink_mask ) ) )
+	reiserfs_delete_solid_item (&th, &key);
+    if (!truncate) {
+	reiserfs_release_objectid (&th, inode->i_ino);
+	inode -> u.reiserfs_i.i_flags &= ~i_link_saved_unlink_mask;
+    } else
+	inode -> u.reiserfs_i.i_flags &= ~i_link_saved_truncate_mask;
+ 
+    journal_end (&th, inode->i_sb, JOURNAL_PER_BALANCE_CNT);
+}
+
+
+static void reiserfs_put_super (struct super_block * s)
+{
+  int i;
+  struct reiserfs_transaction_handle th ;
+  
+  /* change file system state to current state if it was mounted with read-write permissions */
+  if (!(s->s_flags & MS_RDONLY)) {
+    journal_begin(&th, s, 10) ;
+    reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s), 1) ;
+    set_sb_umount_state( SB_DISK_SUPER_BLOCK(s), s->u.reiserfs_sb.s_mount_state );
+    journal_mark_dirty(&th, s, SB_BUFFER_WITH_SB (s));
+  }
+
+  /* note, journal_release checks for readonly mount, and can decide not
+  ** to do a journal_end
+  */
+  journal_release(&th, s) ;
+
+  for (i = 0; i < SB_BMAP_NR (s); i ++)
+    brelse (SB_AP_BITMAP (s)[i].bh);
+
+  vfree (SB_AP_BITMAP (s));
+
+  brelse (SB_BUFFER_WITH_SB (s));
+
+  print_statistics (s);
+
+  if (s->u.reiserfs_sb.s_kmallocs != 0) {
+    reiserfs_warning (s, "vs-2004: reiserfs_put_super: allocated memory left %d\n",
+		      s->u.reiserfs_sb.s_kmallocs);
+  }
+
+  if (s->u.reiserfs_sb.reserved_blocks != 0) {
+    reiserfs_warning (s, "green-2005: reiserfs_put_super: reserved blocks left %d\n",
+		      s->u.reiserfs_sb.reserved_blocks);
+  }
+
+  reiserfs_proc_unregister( s, "journal" );
+  reiserfs_proc_unregister( s, "oidmap" );
+  reiserfs_proc_unregister( s, "on-disk-super" );
+  reiserfs_proc_unregister( s, "bitmap" );
+  reiserfs_proc_unregister( s, "per-level" );
+  reiserfs_proc_unregister( s, "super" );
+  reiserfs_proc_unregister( s, "version" );
+  reiserfs_proc_info_done( s );
+  return;
+}
+
+/* we don't mark inodes dirty, we just log them */
+static void reiserfs_dirty_inode (struct inode * inode) {
+    struct reiserfs_transaction_handle th ;
+
+    if (inode->i_sb->s_flags & MS_RDONLY) {
+        reiserfs_warning(inode->i_sb, "clm-6006: writing inode %lu on readonly FS\n", 
+	                  inode->i_ino) ;
+        return ;
+    }
+    lock_kernel() ;
+
+    /* this is really only used for atime updates, so they don't have
+    ** to be included in O_SYNC or fsync
+    */
+    journal_begin(&th, inode->i_sb, 1) ;
+    reiserfs_update_sd (&th, inode);
+    journal_end(&th, inode->i_sb, 1) ;
+    unlock_kernel() ;
+}
+
+struct super_operations reiserfs_sops = 
+{
+  read_inode: reiserfs_read_inode,
+  read_inode2: reiserfs_read_inode2,
+  write_inode: reiserfs_write_inode,
+  dirty_inode: reiserfs_dirty_inode,
+  delete_inode: reiserfs_delete_inode,
+  put_super: reiserfs_put_super,
+  write_super: reiserfs_write_super,
+  write_super_lockfs: reiserfs_write_super_lockfs,
+  unlockfs: reiserfs_unlockfs,
+  statfs: reiserfs_statfs,
+  remount_fs: reiserfs_remount,
+
+  fh_to_dentry: reiserfs_fh_to_dentry,
+  dentry_to_fh: reiserfs_dentry_to_fh,
+
+};
+
+/* this struct is used in reiserfs_getopt () for containing the value for those
+   mount options that have values rather than being toggles. */
+typedef struct {
+    char * value;
+    int setmask; /* bitmask which is to set on mount_options bitmask when this
+                    value is found, 0 is no bits are to be changed. */
+    int clrmask; /* bitmask which is to clear on mount_options bitmask when this
+		    value is found, 0 is no bits are to be changed. This is
+		    applied BEFORE setmask */
+} arg_desc_t;
+
+
+/* this struct is used in reiserfs_getopt() for describing the set of reiserfs
+   mount options */
+typedef struct {
+    char * option_name;
+    int arg_required; /* 0 is argument is not required, not 0 otherwise */
+    const arg_desc_t * values; /* list of values accepted by an option */
+    int setmask; /* bitmask which is to set on mount_options bitmask when this
+		    value is found, 0 is no bits are to be changed. */
+    int clrmask; /* bitmask which is to clear on mount_options bitmask when this
+		    value is found, 0 is no bits are to be changed. This is
+		    applied BEFORE setmask */
+} opt_desc_t;
+
+
+/* possible values for "-o hash=" and bits which are to be set in s_mount_opt
+   of reiserfs specific part of in-core super block */
+static const arg_desc_t hash[] = {
+    {"rupasov", 1<<FORCE_RUPASOV_HASH,(1<<FORCE_TEA_HASH)|(1<<FORCE_R5_HASH)},
+    {"tea", 1<<FORCE_TEA_HASH,(1<<FORCE_RUPASOV_HASH)|(1<<FORCE_R5_HASH)},
+    {"r5", 1<<FORCE_R5_HASH,(1<<FORCE_RUPASOV_HASH)|(1<<FORCE_TEA_HASH)},
+    {"detect", 1<<FORCE_HASH_DETECT, (1<<FORCE_RUPASOV_HASH)|(1<<FORCE_TEA_HASH)|(1<<FORCE_R5_HASH)},
+    {NULL, 0, 0}
+};
+
+
+/* possible values for "-o block-allocator=" and bits which are to be set in
+   s_mount_opt of reiserfs specific part of in-core super block */
+static const arg_desc_t balloc[] = {
+    {"noborder", 1<<REISERFS_NO_BORDER, 0},
+    {"border", 0, 1<<REISERFS_NO_BORDER},
+    {"no_unhashed_relocation", 1<<REISERFS_NO_UNHASHED_RELOCATION, 0},
+    {"hashed_relocation", 1<<REISERFS_HASHED_RELOCATION, 0},
+    {"test4", 1<<REISERFS_TEST4, 0},
+    {"notest4", 0, 1<<REISERFS_TEST4},
+    {NULL, 0, 0}
+};
+
+static const arg_desc_t tails[] = {
+    {"on", 1<<REISERFS_LARGETAIL, 1<<REISERFS_SMALLTAIL},
+    {"off", 0, (1<<REISERFS_LARGETAIL)|(1<<REISERFS_SMALLTAIL)},
+    {"small", 1<<REISERFS_SMALLTAIL, 1<<REISERFS_LARGETAIL},
+    {NULL, 0, 0}
+};
+
+
+/* proceed only one option from a list *cur - string containing of mount options
+   opts - array of options which are accepted
+   opt_arg - if option is found and requires an argument and if it is specifed
+   in the input - pointer to the argument is stored here
+   bit_flags - if option requires to set a certain bit - it is set here
+   return -1 if unknown option is found, opt->arg_required otherwise */
+static int reiserfs_getopt ( struct super_block * s, char ** cur, opt_desc_t * opts, char ** opt_arg,
+			    unsigned long * bit_flags)
+{
+    char * p;
+    /* foo=bar, 
+       ^   ^  ^
+       |   |  +-- option_end
+       |   +-- arg_start
+       +-- option_start
+    */
+    const opt_desc_t * opt;
+    const arg_desc_t * arg;
+    
+    
+    p = *cur;
+    
+    /* assume argument cannot contain commas */
+    *cur = strchr (p, ',');
+    if (*cur) {
+	*(*cur) = '\0';
+	(*cur) ++;
+    }
+
+    if ( !strncmp (p, "alloc=", 6) ) {
+	/* Ugly special case, probably we should redo options parser so that
+	   it can understand several arguments for some options, also so that
+	   it can fill several bitfields with option values. */
+	if ( reiserfs_parse_alloc_options( s, p + 6) ) {
+	    return -1;
+	} else {
+	    return 0;
+	}
+    }
+	
+    /* for every option in the list */
+    for (opt = opts; opt->option_name; opt ++) {
+	if (!strncmp (p, opt->option_name, strlen (opt->option_name))) {
+	    if (bit_flags) {
+		*bit_flags &= ~opt->clrmask;
+		*bit_flags |= opt->setmask;
+	    }
+	    break;
+	}
+    }
+    if (!opt->option_name) {
+	printk ("reiserfs_getopt: unknown option \"%s\"\n", p);
+	return -1;
+    }
+    
+    p += strlen (opt->option_name);
+    switch (*p) {
+    case '=':
+	if (!opt->arg_required) {
+	    printk ("reiserfs_getopt: the option \"%s\" does not require an argument\n",
+		    opt->option_name);
+	    return -1;
+	}
+	break;
+	
+    case 0:
+	if (opt->arg_required) {
+	    printk ("reiserfs_getopt: the option \"%s\" requires an argument\n", opt->option_name);
+	    return -1;
+	}
+	break;
+    default:
+	printk ("reiserfs_getopt: head of option \"%s\" is only correct\n", opt->option_name);
+	return -1;
+    }
+	
+    /* move to the argument, or to next option if argument is not required */
+    p ++;
+    
+    if ( opt->arg_required && !strlen (p) ) {
+	/* this catches "option=," */
+	printk ("reiserfs_getopt: empty argument for \"%s\"\n", opt->option_name);
+	return -1;
+    }
+    
+    if (!opt->values) {
+	/* *=NULLopt_arg contains pointer to argument */
+	*opt_arg = p;
+	return opt->arg_required;
+    }
+    
+    /* values possible for this option are listed in opt->values */
+    for (arg = opt->values; arg->value; arg ++) {
+	if (!strcmp (p, arg->value)) {
+	    if (bit_flags) {
+		*bit_flags &= ~arg->clrmask;
+		*bit_flags |= arg->setmask;
+	    }
+	    return opt->arg_required;
+	}
+    }
+    
+    printk ("reiserfs_getopt: bad value \"%s\" for option \"%s\"\n", p, opt->option_name);
+    return -1;
+}
+
+/* returns 0 if something is wrong in option string, 1 - otherwise */
+static int reiserfs_parse_options (struct super_block * s, char * options, /* string given via mount's -o */
+				   unsigned long * mount_options,
+				   /* after the parsing phase, contains the
+				      collection of bitflags defining what
+				      mount options were selected. */
+				   unsigned long * blocks) /* strtol-ed from NNN of resize=NNN */
+{
+    int c;
+    char * arg = NULL;
+    char * pos;
+    opt_desc_t opts[] = {
+		{"tails", 't', tails, 0, 0},
+		/* Compatibility stuff, so that -o notail
+		   for old setups still work */
+		{"notail", 0, 0, 0, (1<<REISERFS_LARGETAIL)|(1<<REISERFS_SMALLTAIL)},
+		{"conv", 0, 0, 1<<REISERFS_CONVERT, 0},
+		{"nolog", 0, 0, 0, 0}, /* This is unsupported */
+		{"replayonly", 0, 0, 1<<REPLAYONLY, 0},
+		
+		{"block-allocator", 'a', balloc, 0, 0},
+		{"hash", 'h', hash, 1<<FORCE_HASH_DETECT, 0},
+		
+		{"resize", 'r', 0, 0, 0},
+		{"attrs", 0, 0, 1<<REISERFS_ATTRS, 0},
+		{"noattrs", 0, 0, 0, 1<<REISERFS_ATTRS},
+		{NULL, 0, 0, 0, 0}
+    };
+	
+    *blocks = 0;
+    if (!options || !*options)
+	/* use default configuration: create tails, journaling on, no
+	   conversion to newest format */
+	return 1;
+    
+    for (pos = options; pos; ) {
+	c = reiserfs_getopt (s, &pos, opts, &arg, mount_options);
+	if (c == -1)
+	    /* wrong option is given */
+	    return 0;
+	
+	if (c == 'r') {
+	    char * p;
+	    
+	    p = 0;
+	    /* "resize=NNN" */
+	    *blocks = simple_strtoul (arg, &p, 0);
+	    if (*p != '\0') {
+		/* NNN does not look like a number */
+		printk ("reiserfs_parse_options: bad value %s\n", arg);
+		return 0;
+	    }
+	}
+    }
+    
+    return 1;
+}
+
+
+int reiserfs_is_super(struct super_block *s) {
+   return (s->s_dev != 0 && s->s_op == &reiserfs_sops) ;
+}
+
+
+static void handle_attrs( struct super_block *s )
+{
+	struct reiserfs_super_block * rs;
+
+	if( reiserfs_attrs( s ) ) {
+		rs = SB_DISK_SUPER_BLOCK (s);
+		if( old_format_only(s) ) {
+			reiserfs_warning(s, "reiserfs: cannot support attributes on 3.5.x disk format\n" );
+			s -> u.reiserfs_sb.s_mount_opt &= ~ ( 1 << REISERFS_ATTRS );
+			return;
+		}
+		if( !( le32_to_cpu( rs -> s_flags ) & reiserfs_attrs_cleared ) ) {
+				reiserfs_warning(s, "reiserfs: cannot support attributes until flag is set in super-block\n" );
+				s -> u.reiserfs_sb.s_mount_opt &= ~ ( 1 << REISERFS_ATTRS );
+		}
+	}
+}
+
+static int reiserfs_remount (struct super_block * s, int * mount_flags, char * data)
+{
+  struct reiserfs_super_block * rs;
+  struct reiserfs_transaction_handle th ;
+  unsigned long blocks;
+  unsigned long mount_options = s->u.reiserfs_sb.s_mount_opt;
+  unsigned long safe_mask = 0;
+
+  rs = SB_DISK_SUPER_BLOCK (s);
+  if (!reiserfs_parse_options(s, data, &mount_options, &blocks))
+  	return -EINVAL;
+
+  /* Add options that are safe here */
+  safe_mask |= 1 << REISERFS_SMALLTAIL;
+  safe_mask |= 1 << REISERFS_LARGETAIL;
+  safe_mask |= 1 << REISERFS_NO_BORDER;
+  safe_mask |= 1 << REISERFS_NO_UNHASHED_RELOCATION;
+  safe_mask |= 1 << REISERFS_HASHED_RELOCATION;
+  safe_mask |= 1 << REISERFS_TEST4;
+  safe_mask |= 1 << REISERFS_ATTRS;
+
+  /* Update the bitmask, taking care to keep
+   * the bits we're not allowed to change here */
+  s->u.reiserfs_sb.s_mount_opt = (s->u.reiserfs_sb.s_mount_opt & ~safe_mask) | (mount_options & safe_mask);
+
+  handle_attrs( s );
+
+  if(blocks) {
+      int rc = reiserfs_resize(s, blocks);
+      if (rc != 0)
+	  return rc;
+  }
+
+  if (*mount_flags & MS_RDONLY) {
+    /* remount read-only */
+    if (s->s_flags & MS_RDONLY)
+      /* it is read-only already */
+      return 0;
+    /* try to remount file system with read-only permissions */
+    if (sb_umount_state(rs) == REISERFS_VALID_FS || s->u.reiserfs_sb.s_mount_state != REISERFS_VALID_FS) {
+      return 0;
+    }
+
+    journal_begin(&th, s, 10) ;
+    /* Mounting a rw partition read-only. */
+    reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s), 1) ;
+    set_sb_umount_state( rs, s->u.reiserfs_sb.s_mount_state );
+    journal_mark_dirty(&th, s, SB_BUFFER_WITH_SB (s));
+    s->s_dirt = 0;
+  } else {
+    /* remount read-write */
+    if (!(s->s_flags & MS_RDONLY))
+	return 0; /* We are read-write already */
+
+    s->s_flags &= ~MS_RDONLY ; /* now it is safe to call journal_begin */
+    journal_begin(&th, s, 10) ;
+    
+    /* Mount a partition which is read-only, read-write */
+    reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s), 1) ;
+    s->u.reiserfs_sb.s_mount_state = sb_umount_state(rs);
+    s->s_flags &= ~MS_RDONLY;
+    set_sb_umount_state( rs, REISERFS_ERROR_FS );
+    /* mark_buffer_dirty (SB_BUFFER_WITH_SB (s), 1); */
+    journal_mark_dirty(&th, s, SB_BUFFER_WITH_SB (s));
+    s->s_dirt = 0;
+    s->u.reiserfs_sb.s_mount_state = REISERFS_VALID_FS ;
+  }
+  /* this will force a full flush of all journal lists */
+  SB_JOURNAL(s)->j_must_wait = 1 ;
+  journal_end(&th, s, 10) ;
+
+  if (!( *mount_flags & MS_RDONLY ) )
+    finish_unfinished( s );
+
+  return 0;
+}
+
+/* load_bitmap_info_data - Sets up the reiserfs_bitmap_info structure from disk.
+ * @sb - superblock for this filesystem
+ * @bi - the bitmap info to be loaded. Requires that bi->bh is valid.
+ *
+ * This routine counts how many free bits there are, finding the first zero
+ * as a side effect. Could also be implemented as a loop of test_bit() calls, or
+ * a loop of find_first_zero_bit() calls. This implementation is similar to
+ * find_first_zero_bit(), but doesn't return after it finds the first bit.
+ * Should only be called on fs mount, but should be fairly efficient anyways.
+ *
+ * bi->first_zero_hint is considered unset if it == 0, since the bitmap itself
+ * will * invariably occupt block 0 represented in the bitmap. The only
+ * exception to this is when free_count also == 0, since there will be no
+ * free blocks at all.
+ */
+static void load_bitmap_info_data (struct super_block *sb,
+                                   struct reiserfs_bitmap_info *bi)
+{
+    unsigned long *cur = (unsigned long *)bi->bh->b_data;
+
+    while ((char *)cur < (bi->bh->b_data + sb->s_blocksize)) {
+
+	/* No need to scan if all 0's or all 1's.
+	 * Since we're only counting 0's, we can simply ignore all 1's */
+	if (*cur == 0) {
+	    if (bi->first_zero_hint == 0) {
+		bi->first_zero_hint = ((char *)cur - bi->bh->b_data) << 3;
+	    }
+	    bi->free_count += sizeof ( unsigned long ) * 8;
+	} else if (*cur != ~0L) {
+	    int b;
+	    for (b = 0; b < sizeof ( unsigned long ) * 8; b++) {
+		if (!reiserfs_test_le_bit (b, cur)) {
+		    bi->free_count ++;
+		    if (bi->first_zero_hint == 0)
+			bi->first_zero_hint =
+					(((char *)cur - bi->bh->b_data) << 3) + b;
+		    }
+		}
+	    }
+	cur ++;
+    }
+
+#ifdef CONFIG_REISERFS_CHECK
+// This outputs a lot of unneded info on big FSes
+//    reiserfs_warning ("bitmap loaded from block %d: %d free blocks\n",
+//		      bi->bh->b_blocknr, bi->free_count);
+#endif
+}
+
+static int read_bitmaps (struct super_block * s)
+{
+    int i, bmp;
+
+    SB_AP_BITMAP (s) = vmalloc (sizeof (struct reiserfs_bitmap_info) * SB_BMAP_NR(s));
+    if (SB_AP_BITMAP (s) == 0)
+      return 1;
+    memset (SB_AP_BITMAP (s), 0, sizeof (struct reiserfs_bitmap_info) * SB_BMAP_NR(s));
+
+    for (i = 0, bmp = REISERFS_DISK_OFFSET_IN_BYTES / s->s_blocksize + 1;
+ 	 i < SB_BMAP_NR(s); i++, bmp = s->s_blocksize * 8 * i) {
+      SB_AP_BITMAP (s)[i].bh = sb_getblk (s, bmp);
+      if (!buffer_uptodate(SB_AP_BITMAP(s)[i].bh))
+	ll_rw_block(READ, 1, &SB_AP_BITMAP(s)[i].bh); 
+    }
+    for (i = 0; i < SB_BMAP_NR(s); i++) {
+      wait_on_buffer(SB_AP_BITMAP (s)[i].bh);
+      if (!buffer_uptodate(SB_AP_BITMAP(s)[i].bh)) {
+	reiserfs_warning(s, "sh-2029: reiserfs read_bitmaps: "
+			 "bitmap block (#%lu) reading failed\n",
+			 SB_AP_BITMAP(s)[i].bh->b_blocknr);
+	for (i = 0; i < SB_BMAP_NR(s); i++)
+	  brelse(SB_AP_BITMAP(s)[i].bh);
+	vfree(SB_AP_BITMAP(s));
+	SB_AP_BITMAP(s) = NULL;
+	return 1;
+      }
+      load_bitmap_info_data (s, SB_AP_BITMAP (s) + i);
+    }   
+    return 0;
+}
+
+static int read_old_bitmaps (struct super_block * s)
+{
+  int i ;
+  struct reiserfs_super_block * rs = SB_DISK_SUPER_BLOCK(s);
+  int bmp1 = (REISERFS_OLD_DISK_OFFSET_IN_BYTES / s->s_blocksize) + 1;  /* first of bitmap blocks */
+
+  /* read true bitmap */
+  SB_AP_BITMAP (s) = vmalloc (sizeof (struct reiserfs_buffer_info *) * sb_bmap_nr(rs));
+  if (SB_AP_BITMAP (s) == 0)
+    return 1;
+
+  memset (SB_AP_BITMAP (s), 0, sizeof (struct reiserfs_buffer_info *) * sb_bmap_nr(rs));
+
+  for (i = 0; i < sb_bmap_nr(rs); i ++) {
+    SB_AP_BITMAP (s)[i].bh = reiserfs_bread (s, bmp1 + i, s->s_blocksize);
+    if (!SB_AP_BITMAP (s)[i].bh)
+      return 1;
+    load_bitmap_info_data (s, SB_AP_BITMAP (s) + i);
+  }
+
+  return 0;
+}
+
+void check_bitmap (struct super_block * s)
+{
+  int i = 0;
+  int free = 0;
+  char * buf;
+
+  while (i < SB_BLOCK_COUNT (s)) {
+    buf = SB_AP_BITMAP (s)[i / (s->s_blocksize * 8)].bh->b_data;
+    if (!reiserfs_test_le_bit (i % (s->s_blocksize * 8), buf))
+      free ++;
+    i ++;
+  }
+
+  if (free != SB_FREE_BLOCKS (s))
+    reiserfs_warning (s, "vs-4000: check_bitmap: %d free blocks, must be %d\n",
+		      free, SB_FREE_BLOCKS (s));
+}
+
+static int read_super_block (struct super_block * s, int size, int offset)
+{
+    struct buffer_head * bh;
+    struct reiserfs_super_block * rs;
+ 
+
+    bh = bread (s->s_dev, offset / size, size);
+    if (!bh) {
+      printk ("sh-2006: reiserfs read_super_block: "
+              "bread failed (dev %s, block %u, size %u)\n",
+              kdevname (s->s_dev), offset / size, size);
+      return 1;
+    }
+ 
+    rs = (struct reiserfs_super_block *)bh->b_data;
+    if (!is_any_reiserfs_magic_string (rs)) {
+      brelse (bh);
+      return 1;
+    }
+ 
+    //
+    // ok, reiserfs signature (old or new) found in at the given offset
+    //    
+    s->s_blocksize = sb_blocksize(rs);
+    s->s_blocksize_bits = 0;
+    while ((1 << s->s_blocksize_bits) != s->s_blocksize)
+	s->s_blocksize_bits ++;
+
+    brelse (bh);
+
+    if (s->s_blocksize != 4096) {
+	printk("Unsupported reiserfs blocksize: %ld on %s, only 4096 bytes "
+	       "blocksize is supported.\n", s->s_blocksize, kdevname (s->s_dev));
+	return 1;
+    }
+    
+    if (s->s_blocksize != size)
+	set_blocksize (s->s_dev, s->s_blocksize);
+
+    bh = reiserfs_bread (s, offset / s->s_blocksize, s->s_blocksize);
+    if (!bh) {
+      printk("sh-2007: reiserfs read_super_block: "
+	     "bread failed (dev %s, block %u, size %u)\n",
+	     kdevname (s->s_dev), offset / size, size);
+	return 1;
+    }
+    
+    rs = (struct reiserfs_super_block *)bh->b_data;
+    if (!is_any_reiserfs_magic_string (rs) || sb_blocksize(rs) !=
+	s->s_blocksize) {
+      printk ("sh-2011: read_super_block: "
+	      "can't find a reiserfs filesystem on (dev %s, block %lu, size %lu)\n",
+	      kdevname(s->s_dev), bh->b_blocknr, s->s_blocksize);    
+      brelse (bh);
+      return 1;
+    }
+
+    if (sb_root_block(rs) == -1) {
+	brelse(bh) ;
+	printk("dev %s: Unfinished reiserfsck --rebuild-tree run detected. Please run\n"
+	       "reiserfsck --rebuild-tree and wait for a completion. If that fails\n"
+	       "get newer reiserfsprogs package\n", kdevname (s->s_dev));
+	return 1;
+    }
+
+    SB_BUFFER_WITH_SB (s) = bh;
+    SB_DISK_SUPER_BLOCK (s) = rs;
+    if (is_reiserfs_jr (rs)) {
+      /* magic is of non-standard journal filesystem, look at s_version to
+	 find which format is in use */
+      if (sb_version(rs) == REISERFS_VERSION_2)
+	printk ("reiserfs: found format \"3.6\" with non-standard journal\n");
+      else if (sb_version(rs) == REISERFS_VERSION_1)
+	printk ("reiserfs: found format \"3.5\" with non-standard journal\n");
+      else {
+	printk ("sh-2012: read_super_block: found unknown format \"%u\" "
+		"of reiserfs with non-standard magic\n", sb_version(rs));
+ 	return 1;
+      }
+    }
+    else
+      /* s_version may contain incorrect information. Look at the magic
+	 string */
+      printk ("reiserfs: found format \"%s\" with standard journal\n",
+	      is_reiserfs_3_5 (rs) ? "3.5" : "3.6");
+    s->s_op = &reiserfs_sops;
+
+    /* new format is limited by the 32 bit wide i_blocks field, want to
+    ** be one full block below that.
+    */
+    s->s_maxbytes = (512LL << 32) - s->s_blocksize ;
+    return 0;
+}
+
+
+
+/* after journal replay, reread all bitmap and super blocks */
+static int reread_meta_blocks(struct super_block *s) {
+  int i ;
+  ll_rw_block(READ, 1, &(SB_BUFFER_WITH_SB(s))) ;
+  wait_on_buffer(SB_BUFFER_WITH_SB(s)) ;
+  if (!buffer_uptodate(SB_BUFFER_WITH_SB(s))) {
+    reiserfs_warning(s, "sh-2016: reiserfs reread_meta_blocks, "
+	   "error reading the super\n") ;
+    return 1 ;
+  }
+
+  for (i = 0; i < SB_BMAP_NR(s) ; i++) {
+    ll_rw_block(READ, 1, &(SB_AP_BITMAP(s)[i].bh)) ;
+    wait_on_buffer(SB_AP_BITMAP(s)[i].bh) ;
+    if (!buffer_uptodate(SB_AP_BITMAP(s)[i].bh)) {
+      reiserfs_warning(s, "reread_meta_blocks, error reading bitmap block number %d at %ld\n", i, SB_AP_BITMAP(s)[i].bh->b_blocknr) ;
+      return 1 ;
+    }
+  }
+  return 0 ;
+
+}
+
+
+/////////////////////////////////////////////////////
+// hash detection stuff
+
+
+// if root directory is empty - we set default - Yura's - hash and
+// warn about it
+// FIXME: we look for only one name in a directory. If tea and yura
+// bith have the same value - we ask user to send report to the
+// mailing list
+__u32 find_hash_out (struct super_block * s)
+{
+    int retval;
+    struct inode * inode;
+    struct cpu_key key;
+    INITIALIZE_PATH (path);
+    struct reiserfs_dir_entry de;
+    __u32 hash = DEFAULT_HASH;
+
+    inode = s->s_root->d_inode;
+
+    do { // Some serious "goto"-hater was there ;)
+	u32 teahash, r5hash, yurahash;
+
+	make_cpu_key (&key, inode, ~0, TYPE_DIRENTRY, 3);
+	retval = search_by_entry_key (s, &key, &path, &de);
+	if (retval == IO_ERROR) {
+	    pathrelse (&path);
+	    return UNSET_HASH ;
+	}
+	if (retval == NAME_NOT_FOUND)
+	    de.de_entry_num --;
+	set_de_name_and_namelen (&de);
+	if (deh_offset( &(de.de_deh[de.de_entry_num]) ) == DOT_DOT_OFFSET) {
+	    /* allow override in this case */
+	    if (reiserfs_rupasov_hash(s)) {
+		hash = YURA_HASH ;
+	    }
+	    reiserfs_warning(s, "reiserfs: FS seems to be empty, autodetect "
+	                     "is using the default hash\n");
+	    break;
+	}
+	r5hash=GET_HASH_VALUE (r5_hash (de.de_name, de.de_namelen));
+	teahash=GET_HASH_VALUE (keyed_hash (de.de_name, de.de_namelen));
+	yurahash=GET_HASH_VALUE (yura_hash (de.de_name, de.de_namelen));
+	if ( ( (teahash == r5hash) && (GET_HASH_VALUE( deh_offset(&(de.de_deh[de.de_entry_num]))) == r5hash) ) ||
+	     ( (teahash == yurahash) && (yurahash == GET_HASH_VALUE( deh_offset(&(de.de_deh[de.de_entry_num])))) ) ||
+	     ( (r5hash == yurahash) && (yurahash == GET_HASH_VALUE( deh_offset(&(de.de_deh[de.de_entry_num])))) ) ) {
+	    reiserfs_warning(s, "reiserfs: Unable to automatically detect hash"
+		"function please mount with -o hash={tea,rupasov,r5}\n");
+	    hash = UNSET_HASH;
+	    break;
+	}
+	if (GET_HASH_VALUE( deh_offset(&(de.de_deh[de.de_entry_num])) ) == yurahash)
+	    hash = YURA_HASH;
+	else if (GET_HASH_VALUE( deh_offset(&(de.de_deh[de.de_entry_num])) ) == teahash)
+	    hash = TEA_HASH;
+	else if (GET_HASH_VALUE( deh_offset(&(de.de_deh[de.de_entry_num])) ) == r5hash)
+	    hash = R5_HASH;
+	else {
+	    reiserfs_warning(s, "reiserfs: Unrecognised hash function\n");
+	    hash = UNSET_HASH;
+	}
+    } while (0);
+
+    pathrelse (&path);
+    return hash;
+}
+
+// finds out which hash names are sorted with
+static int what_hash (struct super_block * s)
+{
+    __u32 code;
+
+    code = sb_hash_function_code(SB_DISK_SUPER_BLOCK(s));
+
+    /* reiserfs_hash_detect() == true if any of the hash mount options
+    ** were used.  We must check them to make sure the user isn't
+    ** using a bad hash value
+    */
+    if (code == UNSET_HASH || reiserfs_hash_detect(s))
+	code = find_hash_out (s);
+
+    if (code != UNSET_HASH && reiserfs_hash_detect(s)) {
+	/* detection has found the hash, and we must check against the 
+	** mount options 
+	*/
+	if (reiserfs_rupasov_hash(s) && code != YURA_HASH) {
+	    printk("REISERFS: Error, %s hash detected, "
+		   "unable to force rupasov hash\n", reiserfs_hashname(code)) ;
+	    code = UNSET_HASH ;
+	} else if (reiserfs_tea_hash(s) && code != TEA_HASH) {
+	    printk("REISERFS: Error, %s hash detected, "
+		   "unable to force tea hash\n", reiserfs_hashname(code)) ;
+	    code = UNSET_HASH ;
+	} else if (reiserfs_r5_hash(s) && code != R5_HASH) {
+	    printk("REISERFS: Error, %s hash detected, "
+		   "unable to force r5 hash\n", reiserfs_hashname(code)) ;
+	    code = UNSET_HASH ;
+	} 
+    } else { 
+        /* find_hash_out was not called or could not determine the hash */
+	if (reiserfs_rupasov_hash(s)) {
+	    code = YURA_HASH ;
+	} else if (reiserfs_tea_hash(s)) {
+	    code = TEA_HASH ;
+	} else if (reiserfs_r5_hash(s)) {
+	    code = R5_HASH ;
+	} 
+    }
+
+    /* if we are mounted RW, and we have a new valid hash code, update 
+    ** the super
+    */
+    if (code != UNSET_HASH && 
+	!(s->s_flags & MS_RDONLY) && 
+        code != sb_hash_function_code(SB_DISK_SUPER_BLOCK(s))) {
+        set_sb_hash_function_code(SB_DISK_SUPER_BLOCK(s), code);
+    }
+    return code;
+}
+
+// return pointer to appropriate function
+static hashf_t hash_function (struct super_block * s)
+{
+    switch (what_hash (s)) {
+    case TEA_HASH:
+	reiserfs_warning (s, "Using tea hash to sort names\n");
+	return keyed_hash;
+    case YURA_HASH:
+	reiserfs_warning (s, "Using rupasov hash to sort names\n");
+	return yura_hash;
+    case R5_HASH:
+	reiserfs_warning (s, "Using r5 hash to sort names\n");
+	return r5_hash;
+    }
+    return NULL;
+}
+
+// this is used to set up correct value for old partitions
+int function2code (hashf_t func)
+{
+    if (func == keyed_hash)
+	return TEA_HASH;
+    if (func == yura_hash)
+	return YURA_HASH;
+    if (func == r5_hash)
+	return R5_HASH;
+
+    BUG() ; // should never happen 
+
+    return 0;
+}
+
+static struct super_block * reiserfs_read_super (struct super_block * s, void * data, int silent)
+{
+    int size;
+    struct inode *root_inode;
+    kdev_t dev = s->s_dev;
+    int j;
+    struct reiserfs_transaction_handle th ;
+    int old_format = 0;
+    unsigned long blocks;
+    int jinit_done = 0 ;
+    struct reiserfs_iget4_args args ;
+    char *jdev_name;
+    struct reiserfs_super_block * rs;
+
+
+    memset (&s->u.reiserfs_sb, 0, sizeof (struct reiserfs_sb_info));
+    /* Set default values for options: non-aggressive tails */
+    s->u.reiserfs_sb.s_mount_opt = ( 1 << REISERFS_SMALLTAIL );
+    /* default block allocator option: skip_busy */
+    s->u.reiserfs_sb.s_alloc_options.bits = ( 1 << 5);
+    /* If file grew past 4 blocks, start preallocation blocks for it. */
+    s->u.reiserfs_sb.s_alloc_options.preallocmin = 4;
+    /* Preallocate by 8 blocks (9-1) at once */
+    s->u.reiserfs_sb.s_alloc_options.preallocsize = 9;
+
+    if (reiserfs_parse_options (s, (char *) data, &(s->u.reiserfs_sb.s_mount_opt), &blocks) == 0) {
+      return NULL;
+
+
+
+    }
+
+    if (blocks) {
+  	reiserfs_warning(s,"zam-2013: reserfs resize option for remount only\n");
+	return NULL;
+    }	
+
+    if (blksize_size[MAJOR(dev)] && blksize_size[MAJOR(dev)][MINOR(dev)] != 0) {
+	/* as blocksize is set for partition we use it */
+	size = blksize_size[MAJOR(dev)][MINOR(dev)];
+    } else {
+	size = BLOCK_SIZE;
+	set_blocksize (s->s_dev, BLOCK_SIZE);
+    }
+    /* try old format (undistributed bitmap, super block in 8-th 1k block of a device) */
+    if (!read_super_block (s, size, REISERFS_OLD_DISK_OFFSET_IN_BYTES))
+      old_format = 1;
+    /* try new format (64-th 1k block), which can contain reiserfs super block */
+    else if (read_super_block (s, size, REISERFS_DISK_OFFSET_IN_BYTES)) {
+      printk("sh-2021: reiserfs_read_super: can not find reiserfs on %s\n", bdevname(s->s_dev));
+      goto error;
+    }
+    
+    rs = SB_DISK_SUPER_BLOCK (s);
+
+    /* Let's do basic sanity check to verify that underlying device is not
+       smaller than the filesystem. If the check fails then abort and scream,
+       because bad stuff will happen otherwise. */
+   if ( blk_size[MAJOR(dev)][MINOR(dev)] < sb_block_count(rs)*(sb_blocksize(rs)>>10) ) {
+	printk("Filesystem on %s cannot be mounted because it is bigger than the device\n", kdevname(dev));
+	printk("You may need to run fsck or increase size of your LVM partition\n");
+	printk("Or may be you forgot to reboot after fdisk when it told you to\n");
+	return NULL;
+    }
+
+    s->u.reiserfs_sb.s_mount_state = SB_REISERFS_STATE(s);
+    s->u.reiserfs_sb.s_mount_state = REISERFS_VALID_FS ;
+
+    if (old_format ? read_old_bitmaps(s) : read_bitmaps(s)) { 
+	reiserfs_warning (s, "sh-2014: reiserfs_read_super: unable to read bitmap\n");
+	goto error;
+    }
+#ifdef CONFIG_REISERFS_CHECK
+    printk("reiserfs:warning: CONFIG_REISERFS_CHECK is set ON\n");
+    printk("reiserfs:warning: - it is slow mode for debugging.\n");
+#endif
+
+    /* fixme */
+    jdev_name = NULL;
+
+    if( journal_init(s, jdev_name, old_format) ) {
+	reiserfs_warning(s, "sh-2022: reiserfs_read_super: unable to initialize journal space\n") ;
+	goto error ;
+    } else {
+	jinit_done = 1 ; /* once this is set, journal_release must be called
+			 ** if we error out of the mount 
+			 */
+    }
+    if (reread_meta_blocks(s)) {
+	reiserfs_warning(s, "sh-2015: reiserfs_read_super: unable to reread meta blocks after journal init\n") ;
+	goto error ;
+    }
+
+    if (replay_only (s))
+	goto error;
+
+    if (is_read_only(s->s_dev) && !(s->s_flags & MS_RDONLY)) {
+        reiserfs_warning(s, "clm-7000: Detected readonly device, marking FS readonly\n") ;
+	s->s_flags |= MS_RDONLY ;
+    }
+    args.objectid = REISERFS_ROOT_PARENT_OBJECTID ;
+    root_inode = iget4 (s, REISERFS_ROOT_OBJECTID, 0, (void *)(&args));
+    if (!root_inode) {
+	reiserfs_warning (s, "reiserfs_read_super: get root inode failed\n");
+	goto error;
+    }
+
+    s->s_root = d_alloc_root(root_inode);  
+    if (!s->s_root) {
+	iput(root_inode);
+	goto error;
+    }
+
+    // define and initialize hash function
+    s->u.reiserfs_sb.s_hash_function = hash_function (s);
+    if (s->u.reiserfs_sb.s_hash_function == NULL) {
+      dput(s->s_root) ;
+      s->s_root = NULL ;
+      goto error ;
+    }
+    
+    if (is_reiserfs_3_5 (rs) || (is_reiserfs_jr (rs) && SB_VERSION (s) == REISERFS_VERSION_1))
+      set_bit(REISERFS_3_5, &(s->u.reiserfs_sb.s_properties));
+    else
+      set_bit(REISERFS_3_6, &(s->u.reiserfs_sb.s_properties)); 
+    
+    if (!(s->s_flags & MS_RDONLY)) {
+
+	journal_begin(&th, s, 1) ;
+	reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s), 1) ;
+
+        set_sb_umount_state( rs, REISERFS_ERROR_FS );
+ 	set_sb_fs_state (rs, 0);	
+	
+	if (old_format_only(s)) {
+	  /* filesystem of format 3.5 either with standard or non-standard
+	     journal */       
+	  if (convert_reiserfs (s)) {
+	    /* and -o conv is given */ 
+	    reiserfs_warning (s, "reiserfs: converting 3.5 filesystem to the 3.6 format\n") ;
+	    
+	    if (is_reiserfs_3_5 (rs))
+	      /* put magic string of 3.6 format. 2.2 will not be able to
+		 mount this filesystem anymore */
+	      memcpy (rs->s_v1.s_magic, reiserfs_3_6_magic_string, 
+		      sizeof (reiserfs_3_6_magic_string));
+	    
+	    set_sb_version(rs,REISERFS_VERSION_2);
+	    reiserfs_convert_objectid_map_v1(s) ;
+	    set_bit(REISERFS_3_6, &(s->u.reiserfs_sb.s_properties));
+	    clear_bit(REISERFS_3_5, &(s->u.reiserfs_sb.s_properties));
+	  }
+	}
+		
+	journal_mark_dirty(&th, s, SB_BUFFER_WITH_SB (s));
+	journal_end(&th, s, 1) ;
+	
+	/* look for files which were to be removed in previous session */
+	finish_unfinished (s);
+
+	s->s_dirt = 0;
+    }
+
+    // mark hash in super block: it could be unset. overwrite should be ok
+    set_sb_hash_function_code( rs, function2code(s->u.reiserfs_sb.s_hash_function ) );
+
+    handle_attrs( s );
+
+    reiserfs_proc_info_init( s );
+    reiserfs_proc_register( s, "version", reiserfs_version_in_proc );
+    reiserfs_proc_register( s, "super", reiserfs_super_in_proc );
+    reiserfs_proc_register( s, "per-level", reiserfs_per_level_in_proc );
+    reiserfs_proc_register( s, "bitmap", reiserfs_bitmap_in_proc );
+    reiserfs_proc_register( s, "on-disk-super", reiserfs_on_disk_super_in_proc );
+    reiserfs_proc_register( s, "oidmap", reiserfs_oidmap_in_proc );
+    reiserfs_proc_register( s, "journal", reiserfs_journal_in_proc );
+    init_waitqueue_head (&(s->u.reiserfs_sb.s_wait));
+
+    return s;
+
+ error:
+    if (jinit_done) { /* kill the commit thread, free journal ram */
+	journal_release_error(NULL, s) ;
+    }
+    if (SB_DISK_SUPER_BLOCK (s)) {
+	for (j = 0; j < SB_BMAP_NR (s); j ++) {
+	    if (SB_AP_BITMAP (s))
+		brelse (SB_AP_BITMAP (s)[j].bh);
+	}
+	if (SB_AP_BITMAP (s))
+	    vfree (SB_AP_BITMAP (s));
+    }
+    if (SB_BUFFER_WITH_SB (s))
+	brelse(SB_BUFFER_WITH_SB (s));
+
+    return NULL;
+}
+
+
+static int reiserfs_statfs (struct super_block * s, struct statfs * buf)
+{
+  struct reiserfs_super_block * rs = SB_DISK_SUPER_BLOCK (s);
+  
+  buf->f_namelen = (REISERFS_MAX_NAME (s->s_blocksize));
+  buf->f_ffree   = -1;
+  buf->f_files   = -1;
+  buf->f_bfree   = sb_free_blocks(rs);
+  buf->f_bavail  = buf->f_bfree;
+  buf->f_blocks  = sb_block_count(rs) - sb_bmap_nr(rs) - 1;
+  buf->f_bsize   = s->s_blocksize;
+  /* changed to accomodate gcc folks.*/
+  buf->f_type    =  REISERFS_SUPER_MAGIC;
+  return 0;
+}
+
+static DECLARE_FSTYPE_DEV(reiserfs_fs_type,"reiserfs",reiserfs_read_super);
+
+static int __init init_reiserfs_fs (void)
+{
+	reiserfs_proc_info_global_init();
+	reiserfs_proc_register_global( "version", 
+				       reiserfs_global_version_in_proc );
+        return register_filesystem(&reiserfs_fs_type);
+}
+
+MODULE_DESCRIPTION("ReiserFS journaled filesystem");
+MODULE_AUTHOR("Hans Reiser <reiser@namesys.com>");
+MODULE_LICENSE("GPL");
+EXPORT_NO_SYMBOLS;
+
+static void __exit exit_reiserfs_fs(void)
+{
+	reiserfs_proc_unregister_global( "version" );
+	reiserfs_proc_info_global_done();
+        unregister_filesystem(&reiserfs_fs_type);
+}
+
+
+module_init(init_reiserfs_fs) ;
+module_exit(exit_reiserfs_fs) ;
+
+
+
diff --git a/fs/reiserfs/tail_conversion.c b/fs/reiserfs/tail_conversion.c
new file mode 100644
index 00000000000000..df6d014ec9a53b
--- /dev/null
+++ b/fs/reiserfs/tail_conversion.c
@@ -0,0 +1,299 @@
+/*
+ * Copyright 1999-2002 Hans Reiser, see reiserfs/README for licensing and copyright details
+ */
+
+#include <linux/config.h>
+#include <linux/sched.h>
+#include <linux/pagemap.h>
+#include <linux/reiserfs_fs.h>
+#include <linux/locks.h>
+
+/* access to tail : when one is going to read tail it must make sure, that is not running.
+ direct2indirect and indirect2direct can not run concurrently */
+
+
+/* Converts direct items to an unformatted node. Panics if file has no
+   tail. -ENOSPC if no disk space for conversion */
+/* path points to first direct item of the file regarless of how many of
+   them are there */
+int direct2indirect (struct reiserfs_transaction_handle *th, struct inode * inode, 
+		     struct path * path, struct buffer_head * unbh,
+		     loff_t tail_offset)
+{
+    struct super_block * sb = inode->i_sb;
+    struct buffer_head *up_to_date_bh ;
+    struct item_head * p_le_ih = PATH_PITEM_HEAD (path);
+    unsigned long total_tail = 0 ;
+    struct cpu_key end_key;  /* Key to search for the last byte of the
+				converted item. */
+    struct item_head ind_ih; /* new indirect item to be inserted or
+                                key of unfm pointer to be pasted */
+    int	n_blk_size,
+      n_retval;	  /* returned value for reiserfs_insert_item and clones */
+    unp_t unfm_ptr;  /* Handle on an unformatted node
+				       that will be inserted in the
+				       tree. */
+
+
+    sb->u.reiserfs_sb.s_direct2indirect ++;
+
+    n_blk_size = sb->s_blocksize;
+
+    /* and key to search for append or insert pointer to the new
+       unformatted node. */
+    copy_item_head (&ind_ih, p_le_ih);
+    set_le_ih_k_offset (&ind_ih, tail_offset);
+    set_le_ih_k_type (&ind_ih, TYPE_INDIRECT);
+
+    /* Set the key to search for the place for new unfm pointer */
+    make_cpu_key (&end_key, inode, tail_offset, TYPE_INDIRECT, 4);
+
+    // FIXME: we could avoid this 
+    if ( search_for_position_by_key (sb, &end_key, path) == POSITION_FOUND ) {
+	reiserfs_warning (sb, "PAP-14030: direct2indirect: "
+			"pasted or inserted byte exists in the tree %K. "
+			"Use fsck to repair.\n", &end_key);
+	pathrelse(path);
+	return -EIO;
+    }
+    
+    p_le_ih = PATH_PITEM_HEAD (path);
+
+    unfm_ptr = cpu_to_le32 (unbh->b_blocknr);
+    
+    if ( is_statdata_le_ih (p_le_ih) )  {
+	/* Insert new indirect item. */
+	set_ih_free_space (&ind_ih, 0); /* delete at nearest future */
+        put_ih_item_len( &ind_ih, UNFM_P_SIZE );
+	PATH_LAST_POSITION (path)++;
+	n_retval = reiserfs_insert_item (th, path, &end_key, &ind_ih, 
+					 (char *)&unfm_ptr);
+    } else {
+	/* Paste into last indirect item of an object. */
+	n_retval = reiserfs_paste_into_item(th, path, &end_key,
+					    (char *)&unfm_ptr, UNFM_P_SIZE);
+    }
+    if ( n_retval ) {
+	return n_retval;
+    }
+
+    // note: from here there are two keys which have matching first
+    // three key components. They only differ by the fourth one.
+
+
+    /* Set the key to search for the direct items of the file */
+    make_cpu_key (&end_key, inode, max_reiserfs_offset (inode), TYPE_DIRECT, 4);
+
+    /* Move bytes from the direct items to the new unformatted node
+       and delete them. */
+    while (1)  {
+	int tail_size;
+
+	/* end_key.k_offset is set so, that we will always have found
+           last item of the file */
+	if ( search_for_position_by_key (sb, &end_key, path) == POSITION_FOUND )
+	    reiserfs_panic (sb, "PAP-14050: direct2indirect: "
+			    "direct item (%K) not found", &end_key);
+	p_le_ih = PATH_PITEM_HEAD (path);
+	RFALSE( !is_direct_le_ih (p_le_ih),
+	        "vs-14055: direct item expected(%K), found %h",
+                &end_key, p_le_ih);
+        tail_size = (le_ih_k_offset (p_le_ih) & (n_blk_size - 1))
+            + ih_item_len(p_le_ih) - 1;
+
+	/* we only send the unbh pointer if the buffer is not up to date.
+	** this avoids overwriting good data from writepage() with old data
+	** from the disk or buffer cache
+	** Special case: unbh->b_page will be NULL if we are coming through
+	** DIRECT_IO handler here.
+	*/
+	if ( !unbh->b_page || buffer_uptodate(unbh) || Page_Uptodate(unbh->b_page)) {
+	    up_to_date_bh = NULL ;
+	} else {
+	    up_to_date_bh = unbh ;
+	}
+	n_retval = reiserfs_delete_item (th, path, &end_key, inode, 
+	                                 up_to_date_bh) ;
+
+	total_tail += n_retval ;
+	if (tail_size == n_retval)
+	    // done: file does not have direct items anymore
+	    break;
+
+    }
+    /* if we've copied bytes from disk into the page, we need to zero
+    ** out the unused part of the block (it was not up to date before)
+    ** the page is still kmapped (by whoever called reiserfs_get_block)
+    */
+    if (up_to_date_bh) {
+        unsigned pgoff = (tail_offset + total_tail - 1) & (PAGE_CACHE_SIZE - 1);
+	memset(page_address(unbh->b_page) + pgoff, 0, n_blk_size - total_tail) ;
+    }
+
+    inode->u.reiserfs_i.i_first_direct_byte = U32_MAX;
+
+    reiserfs_update_tail_transaction(inode);
+    return 0;
+}
+
+
+/* stolen from fs/buffer.c */
+void reiserfs_unmap_buffer(struct buffer_head *bh) {
+  if (buffer_mapped(bh)) {
+    if (buffer_journaled(bh) || buffer_journal_dirty(bh)) {
+      BUG() ;
+    }
+    mark_buffer_clean(bh) ;
+    lock_buffer(bh) ;
+    clear_bit(BH_Mapped, &bh->b_state) ;
+    clear_bit(BH_Req, &bh->b_state) ;
+    clear_bit(BH_New, &bh->b_state) ;
+    unlock_buffer(bh) ;
+  }
+}
+
+static void
+unmap_buffers(struct page *page, loff_t pos) {
+  struct buffer_head *bh ;
+  struct buffer_head *head ;
+  struct buffer_head *next ;
+  unsigned long tail_index ;
+  unsigned long cur_index ;
+
+  if (page) {
+    if (page->buffers) {
+      tail_index = pos & (PAGE_CACHE_SIZE - 1) ;
+      cur_index = 0 ;
+      head = page->buffers ;
+      bh = head ;
+      do {
+	next = bh->b_this_page ;
+
+        /* we want to unmap the buffers that contain the tail, and
+        ** all the buffers after it (since the tail must be at the
+        ** end of the file).  We don't want to unmap file data 
+        ** before the tail, since it might be dirty and waiting to 
+        ** reach disk
+        */
+        cur_index += bh->b_size ;
+        if (cur_index > tail_index) {
+          reiserfs_unmap_buffer(bh) ;
+        }
+	bh = next ;
+      } while (bh != head) ;
+    }
+  } 
+}
+
+/* this first locks inode (neither reads nor sync are permitted),
+   reads tail through page cache, insert direct item. When direct item
+   inserted successfully inode is left locked. Return value is always
+   what we expect from it (number of cut bytes). But when tail remains
+   in the unformatted node, we set mode to SKIP_BALANCING and unlock
+   inode */
+int indirect2direct (struct reiserfs_transaction_handle *th, 
+		     struct inode * p_s_inode,
+		     struct page *page, 
+		     struct path * p_s_path, /* path to the indirect item. */
+		     const struct cpu_key * p_s_item_key, /* Key to look for unformatted node pointer to be cut. */
+		     loff_t n_new_file_size, /* New file size. */
+		     char * p_c_mode)
+{
+    struct super_block * p_s_sb = p_s_inode->i_sb;
+    struct item_head      s_ih;
+    unsigned long n_block_size = p_s_sb->s_blocksize;
+    char * tail;
+    int tail_len, round_tail_len;
+    loff_t pos, pos1; /* position of first byte of the tail */
+    struct cpu_key key;
+
+    p_s_sb->u.reiserfs_sb.s_indirect2direct ++;
+
+    *p_c_mode = M_SKIP_BALANCING;
+
+    /* store item head path points to. */
+    copy_item_head (&s_ih, PATH_PITEM_HEAD(p_s_path));
+
+    tail_len = (n_new_file_size & (n_block_size - 1));
+    if (get_inode_sd_version (p_s_inode) == STAT_DATA_V2)
+	round_tail_len = ROUND_UP (tail_len);
+    else
+	round_tail_len = tail_len;
+
+    pos = le_ih_k_offset (&s_ih) - 1 + (ih_item_len(&s_ih) / UNFM_P_SIZE - 1) * p_s_sb->s_blocksize;
+    pos1 = pos;
+
+    // we are protected by i_sem. The tail can not disapper, not
+    // append can be done either
+    // we are in truncate or packing tail in file_release
+
+    tail = (char *)kmap(page) ; /* this can schedule */
+
+    if (path_changed (&s_ih, p_s_path)) {
+	/* re-search indirect item */
+	if ( search_for_position_by_key (p_s_sb, p_s_item_key, p_s_path) == POSITION_NOT_FOUND )
+	    reiserfs_panic(p_s_sb, "PAP-5520: indirect2direct: "
+			   "item to be converted %K does not exist", p_s_item_key);
+	copy_item_head(&s_ih, PATH_PITEM_HEAD(p_s_path));
+#ifdef CONFIG_REISERFS_CHECK
+	pos = le_ih_k_offset (&s_ih) - 1 + 
+	    (ih_item_len(&s_ih) / UNFM_P_SIZE - 1) * p_s_sb->s_blocksize;
+	if (pos != pos1)
+	    reiserfs_panic (p_s_sb, "vs-5530: indirect2direct: "
+			    "tail position changed while we were reading it");
+#endif
+    }
+
+
+    /* Set direct item header to insert. */
+    make_le_item_head (&s_ih, 0, get_inode_item_key_version (p_s_inode), pos1 + 1,
+		       TYPE_DIRECT, round_tail_len, 0xffff/*ih_free_space*/);
+
+    /* we want a pointer to the first byte of the tail in the page.
+    ** the page was locked and this part of the page was up to date when
+    ** indirect2direct was called, so we know the bytes are still valid
+    */
+    tail = tail + (pos & (PAGE_CACHE_SIZE - 1)) ;
+
+    PATH_LAST_POSITION(p_s_path)++;
+
+    key = *p_s_item_key;
+    set_cpu_key_k_type (&key, TYPE_DIRECT);
+    key.key_length = 4;
+    /* Insert tail as new direct item in the tree */
+    if ( reiserfs_insert_item(th, p_s_path, &key, &s_ih,
+			      tail ? tail : NULL) < 0 ) {
+	/* No disk memory. So we can not convert last unformatted node
+	   to the direct item.  In this case we used to adjust
+	   indirect items's ih_free_space. Now ih_free_space is not
+	   used, it would be ideal to write zeros to corresponding
+	   unformatted node. For now i_size is considered as guard for
+	   going out of file size */
+	kunmap(page) ;
+	return n_block_size - round_tail_len;
+    }
+    kunmap(page) ;
+
+    /* this will invalidate all the buffers in the page after
+    ** pos1
+    */
+    unmap_buffers(page, pos1) ;
+
+    // note: we have now the same as in above direct2indirect
+    // conversion: there are two keys which have matching first three
+    // key components. They only differ by the fouhth one.
+
+    /* We have inserted new direct item and must remove last
+       unformatted node. */
+    p_s_inode->i_blocks += (p_s_sb->s_blocksize / 512);
+    *p_c_mode = M_CUT;
+
+    /* we store position of first direct item in the in-core inode */
+    //mark_file_with_tail (p_s_inode, pos1 + 1);
+    p_s_inode->u.reiserfs_i.i_first_direct_byte = pos1 + 1;
+
+    return n_block_size - round_tail_len;
+}
+
+
+
diff --git a/fs/reiserfs/version.c b/fs/reiserfs/version.c
new file mode 100644
index 00000000000000..e06bd12be8977c
--- /dev/null
+++ b/fs/reiserfs/version.c
@@ -0,0 +1,7 @@
+/*
+ * Copyright 2000-2002 by Hans Reiser, licensing governed by reiserfs/README
+ */
+
+char *reiserfs_get_version_string(void) {
+  return "ReiserFS version 3.6.25" ;
+}
diff --git a/fs/romfs/Makefile b/fs/romfs/Makefile
new file mode 100644
index 00000000000000..65a88e40b5876c
--- /dev/null
+++ b/fs/romfs/Makefile
@@ -0,0 +1,15 @@
+#
+# Makefile for the linux romfs filesystem routines.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile.
+
+O_TARGET := romfs.o
+
+obj-y  := inode.o
+obj-m  := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/romfs/inode.c b/fs/romfs/inode.c
new file mode 100644
index 00000000000000..9c791cbce08465
--- /dev/null
+++ b/fs/romfs/inode.c
@@ -0,0 +1,551 @@
+/*
+ * ROMFS file system, Linux implementation
+ *
+ * Copyright (C) 1997-1999  Janos Farkas <chexum@shadow.banki.hu>
+ *
+ * Using parts of the minix filesystem
+ * Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ * and parts of the affs filesystem additionally
+ * Copyright (C) 1993  Ray Burr
+ * Copyright (C) 1996  Hans-Joachim Widmaier
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ * Changes
+ *					Changed for 2.1.19 modules
+ *	Jan 1997			Initial release
+ *	Jun 1997			2.1.43+ changes
+ *					Proper page locking in readpage
+ *					Changed to work with 2.1.45+ fs
+ *	Jul 1997			Fixed follow_link
+ *			2.1.47
+ *					lookup shouldn't return -ENOENT
+ *					from Horst von Brand:
+ *					  fail on wrong checksum
+ *					  double unlock_super was possible
+ *					  correct namelen for statfs
+ *					spotted by Bill Hawes:
+ *					  readlink shouldn't iput()
+ *	Jun 1998	2.1.106		from Avery Pennarun: glibc scandir()
+ *					  exposed a problem in readdir
+ *			2.1.107		code-freeze spellchecker run
+ *	Aug 1998			2.1.118+ VFS changes
+ *	Sep 1998	2.1.122		another VFS change (follow_link)
+ *	Apr 1999	2.2.7		no more EBADF checking in
+ *					  lookup/readdir, use ERR_PTR
+ *	Jun 1999	2.3.6		d_alloc_root use changed
+ *			2.3.9		clean up usage of ENOENT/negative
+ *					  dentries in lookup
+ *					clean up page flags setting
+ *					  (error, uptodate, locking) in
+ *					  in readpage
+ *					use init_special_inode for
+ *					  fifos/sockets (and streamline) in
+ *					  read_inode, fix _ops table order
+ *	Aug 1999	2.3.16		__initfunc() => __init change
+ *	Oct 1999	2.3.24		page->owner hack obsoleted
+ *	Nov 1999	2.3.27		2.3.25+ page->offset => index change
+ */
+
+/* todo:
+ *	- see Documentation/filesystems/romfs.txt
+ *	- use allocated, not stack memory for file names?
+ *	- considering write access...
+ *	- network (tftp) files?
+ *	- merge back some _op tables
+ */
+
+/*
+ * Sorry about some optimizations and for some goto's.  I just wanted
+ * to squeeze some more bytes out of this code.. :)
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/romfs_fs.h>
+#include <linux/fs.h>
+#include <linux/locks.h>
+#include <linux/init.h>
+#include <linux/smp_lock.h>
+
+#include <asm/uaccess.h>
+
+static __s32
+romfs_checksum(void *data, int size)
+{
+	__s32 sum, *ptr;
+
+	sum = 0; ptr = data;
+	size>>=2;
+	while (size>0) {
+		sum += ntohl(*ptr++);
+		size--;
+	}
+	return sum;
+}
+
+static struct super_operations romfs_ops;
+
+static struct super_block *
+romfs_read_super(struct super_block *s, void *data, int silent)
+{
+	struct buffer_head *bh;
+	kdev_t dev = s->s_dev;
+	struct romfs_super_block *rsb;
+	int sz;
+
+	/* I would parse the options here, but there are none.. :) */
+
+	set_blocksize(dev, ROMBSIZE);
+	s->s_blocksize = ROMBSIZE;
+	s->s_blocksize_bits = ROMBSBITS;
+	s->u.generic_sbp = (void *) 0;
+	s->s_maxbytes = 0xFFFFFFFF;
+
+	bh = sb_bread(s, 0);
+	if (!bh) {
+		/* XXX merge with other printk? */
+                printk ("romfs: unable to read superblock\n");
+		goto outnobh;
+	}
+
+	rsb = (struct romfs_super_block *)bh->b_data;
+	sz = ntohl(rsb->size);
+	if (rsb->word0 != ROMSB_WORD0 || rsb->word1 != ROMSB_WORD1
+	   || sz < ROMFH_SIZE) {
+		if (!silent)
+			printk ("VFS: Can't find a romfs filesystem on dev "
+				"%s.\n", kdevname(dev));
+		goto out;
+	}
+	if (romfs_checksum(rsb, min_t(int, sz, 512))) {
+		printk ("romfs: bad initial checksum on dev "
+			"%s.\n", kdevname(dev));
+		goto out;
+	}
+
+	s->s_magic = ROMFS_MAGIC;
+	s->u.romfs_sb.s_maxsize = sz;
+
+	s->s_flags |= MS_RDONLY;
+
+	/* Find the start of the fs */
+	sz = (ROMFH_SIZE +
+	      strnlen(rsb->name, ROMFS_MAXFN) + 1 + ROMFH_PAD)
+	     & ROMFH_MASK;
+
+	brelse(bh);
+
+	s->s_op	= &romfs_ops;
+	s->s_root = d_alloc_root(iget(s, sz));
+
+	if (!s->s_root)
+		goto outnobh;
+
+	/* Ehrhm; sorry.. :)  And thanks to Hans-Joachim Widmaier  :) */
+	if (0) {
+out:
+		brelse(bh);
+outnobh:
+		s = NULL;
+	}
+
+	return s;
+}
+
+/* That's simple too. */
+
+static int
+romfs_statfs(struct super_block *sb, struct statfs *buf)
+{
+	buf->f_type = ROMFS_MAGIC;
+	buf->f_bsize = ROMBSIZE;
+	buf->f_bfree = buf->f_bavail = buf->f_ffree;
+	buf->f_blocks = (sb->u.romfs_sb.s_maxsize+ROMBSIZE-1)>>ROMBSBITS;
+	buf->f_namelen = ROMFS_MAXFN;
+	return 0;
+}
+
+/* some helper routines */
+
+static int
+romfs_strnlen(struct inode *i, unsigned long offset, unsigned long count)
+{
+	struct buffer_head *bh;
+	unsigned long avail, maxsize, res;
+
+	maxsize = i->i_sb->u.romfs_sb.s_maxsize;
+	if (offset >= maxsize)
+		return -1;
+
+	/* strnlen is almost always valid */
+	if (count > maxsize || offset+count > maxsize)
+		count = maxsize-offset;
+
+	bh = sb_bread(i->i_sb, offset>>ROMBSBITS);
+	if (!bh)
+		return -1;		/* error */
+
+	avail = ROMBSIZE - (offset & ROMBMASK);
+	maxsize = min_t(unsigned long, count, avail);
+	res = strnlen(((char *)bh->b_data)+(offset&ROMBMASK), maxsize);
+	brelse(bh);
+
+	if (res < maxsize)
+		return res;		/* found all of it */
+
+	while (res < count) {
+		offset += maxsize;
+
+		bh = sb_bread(i->i_sb, offset>>ROMBSBITS);
+		if (!bh)
+			return -1;
+		maxsize = min_t(unsigned long, count - res, ROMBSIZE);
+		avail = strnlen(bh->b_data, maxsize);
+		res += avail;
+		brelse(bh);
+		if (avail < maxsize)
+			return res;
+	}
+	return res;
+}
+
+static int
+romfs_copyfrom(struct inode *i, void *dest, unsigned long offset, unsigned long count)
+{
+	struct buffer_head *bh;
+	unsigned long avail, maxsize, res;
+
+	maxsize = i->i_sb->u.romfs_sb.s_maxsize;
+	if (offset >= maxsize || count > maxsize || offset+count>maxsize)
+		return -1;
+
+	bh = sb_bread(i->i_sb, offset>>ROMBSBITS);
+	if (!bh)
+		return -1;		/* error */
+
+	avail = ROMBSIZE - (offset & ROMBMASK);
+	maxsize = min_t(unsigned long, count, avail);
+	memcpy(dest, ((char *)bh->b_data) + (offset & ROMBMASK), maxsize);
+	brelse(bh);
+
+	res = maxsize;			/* all of it */
+
+	while (res < count) {
+		offset += maxsize;
+		dest += maxsize;
+
+		bh = sb_bread(i->i_sb, offset>>ROMBSBITS);
+		if (!bh)
+			return -1;
+		maxsize = min_t(unsigned long, count - res, ROMBSIZE);
+		memcpy(dest, bh->b_data, maxsize);
+		brelse(bh);
+		res += maxsize;
+	}
+	return res;
+}
+
+static unsigned char romfs_dtype_table[] = {
+	DT_UNKNOWN, DT_DIR, DT_REG, DT_LNK, DT_BLK, DT_CHR, DT_SOCK, DT_FIFO
+};
+
+static int
+romfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
+{
+	struct inode *i = filp->f_dentry->d_inode;
+	struct romfs_inode ri;
+	unsigned long offset, maxoff;
+	int j, ino, nextfh;
+	int stored = 0;
+	char fsname[ROMFS_MAXFN];	/* XXX dynamic? */
+
+	maxoff = i->i_sb->u.romfs_sb.s_maxsize;
+
+	offset = filp->f_pos;
+	if (!offset) {
+		offset = i->i_ino & ROMFH_MASK;
+		if (romfs_copyfrom(i, &ri, offset, ROMFH_SIZE) <= 0)
+			return stored;
+		offset = ntohl(ri.spec) & ROMFH_MASK;
+	}
+
+	/* Not really failsafe, but we are read-only... */
+	for(;;) {
+		if (!offset || offset >= maxoff) {
+			offset = maxoff;
+			filp->f_pos = offset;
+			return stored;
+		}
+		filp->f_pos = offset;
+
+		/* Fetch inode info */
+		if (romfs_copyfrom(i, &ri, offset, ROMFH_SIZE) <= 0)
+			return stored;
+
+		j = romfs_strnlen(i, offset+ROMFH_SIZE, sizeof(fsname)-1);
+		if (j < 0)
+			return stored;
+
+		fsname[j]=0;
+		romfs_copyfrom(i, fsname, offset+ROMFH_SIZE, j);
+
+		ino = offset;
+		nextfh = ntohl(ri.next);
+		if ((nextfh & ROMFH_TYPE) == ROMFH_HRD)
+			ino = ntohl(ri.spec);
+		if (filldir(dirent, fsname, j, offset, ino,
+			    romfs_dtype_table[nextfh & ROMFH_TYPE]) < 0) {
+			return stored;
+		}
+		stored++;
+		offset = nextfh & ROMFH_MASK;
+	}
+}
+
+static struct dentry *
+romfs_lookup(struct inode *dir, struct dentry *dentry)
+{
+	unsigned long offset, maxoff;
+	int fslen, res;
+	struct inode *inode;
+	char fsname[ROMFS_MAXFN];	/* XXX dynamic? */
+	struct romfs_inode ri;
+	const char *name;		/* got from dentry */
+	int len;
+
+	res = -EACCES;			/* placeholder for "no data here" */
+	offset = dir->i_ino & ROMFH_MASK;
+	if (romfs_copyfrom(dir, &ri, offset, ROMFH_SIZE) <= 0)
+		goto out;
+
+	maxoff = dir->i_sb->u.romfs_sb.s_maxsize;
+	offset = ntohl(ri.spec) & ROMFH_MASK;
+
+	/* OK, now find the file whose name is in "dentry" in the
+	 * directory specified by "dir".  */
+
+	name = dentry->d_name.name;
+	len = dentry->d_name.len;
+
+	for(;;) {
+		if (!offset || offset >= maxoff)
+			goto out0;
+		if (romfs_copyfrom(dir, &ri, offset, ROMFH_SIZE) <= 0)
+			goto out;
+
+		/* try to match the first 16 bytes of name */
+		fslen = romfs_strnlen(dir, offset+ROMFH_SIZE, ROMFH_SIZE);
+		if (len < ROMFH_SIZE) {
+			if (len == fslen) {
+				/* both are shorter, and same size */
+				romfs_copyfrom(dir, fsname, offset+ROMFH_SIZE, len+1);
+				if (strncmp (name, fsname, len) == 0)
+					break;
+			}
+		} else if (fslen >= ROMFH_SIZE) {
+			/* both are longer; XXX optimize max size */
+			fslen = romfs_strnlen(dir, offset+ROMFH_SIZE, sizeof(fsname)-1);
+			if (len == fslen) {
+				romfs_copyfrom(dir, fsname, offset+ROMFH_SIZE, len+1);
+				if (strncmp(name, fsname, len) == 0)
+					break;
+			}
+		}
+		/* next entry */
+		offset = ntohl(ri.next) & ROMFH_MASK;
+	}
+
+	/* Hard link handling */
+	if ((ntohl(ri.next) & ROMFH_TYPE) == ROMFH_HRD)
+		offset = ntohl(ri.spec) & ROMFH_MASK;
+
+	if ((inode = iget(dir->i_sb, offset)))
+		goto outi;
+
+	/*
+	 * it's a bit funky, _lookup needs to return an error code
+	 * (negative) or a NULL, both as a dentry.  ENOENT should not
+	 * be returned, instead we need to create a negative dentry by
+	 * d_add(dentry, NULL); and return 0 as no error.
+	 * (Although as I see, it only matters on writable file
+	 * systems).
+	 */
+
+out0:	inode = NULL;
+outi:	res = 0;
+	d_add (dentry, inode);
+
+out:	return ERR_PTR(res);
+}
+
+/*
+ * Ok, we do readpage, to be able to execute programs.  Unfortunately,
+ * we can't use bmap, since we may have looser alignments.
+ */
+
+static int
+romfs_readpage(struct file *file, struct page * page)
+{
+	struct inode *inode = page->mapping->host;
+	unsigned long offset, avail, readlen;
+	void *buf;
+	int result = -EIO;
+
+	page_cache_get(page);
+	lock_kernel();
+	buf = kmap(page);
+	if (!buf)
+		goto err_out;
+
+	/* 32 bit warning -- but not for us :) */
+	offset = page->index << PAGE_CACHE_SHIFT;
+	if (offset < inode->i_size) {
+		avail = inode->i_size-offset;
+		readlen = min_t(unsigned long, avail, PAGE_SIZE);
+		if (romfs_copyfrom(inode, buf, inode->u.romfs_i.i_dataoffset+offset, readlen) == readlen) {
+			if (readlen < PAGE_SIZE) {
+				memset(buf + readlen,0,PAGE_SIZE-readlen);
+			}
+			SetPageUptodate(page);
+			result = 0;
+		}
+	}
+	if (result) {
+		memset(buf, 0, PAGE_SIZE);
+		SetPageError(page);
+	}
+	flush_dcache_page(page);
+
+	UnlockPage(page);
+
+	kunmap(page);
+err_out:
+	page_cache_release(page);
+	unlock_kernel();
+
+	return result;
+}
+
+/* Mapping from our types to the kernel */
+
+static struct address_space_operations romfs_aops = {
+	readpage: romfs_readpage
+};
+
+static struct file_operations romfs_dir_operations = {
+	read:		generic_read_dir,
+	readdir:	romfs_readdir,
+};
+
+static struct inode_operations romfs_dir_inode_operations = {
+	lookup:		romfs_lookup,
+};
+
+static mode_t romfs_modemap[] =
+{
+	0, S_IFDIR+0644, S_IFREG+0644, S_IFLNK+0777,
+	S_IFBLK+0600, S_IFCHR+0600, S_IFSOCK+0644, S_IFIFO+0644
+};
+
+static void
+romfs_read_inode(struct inode *i)
+{
+	int nextfh, ino;
+	struct romfs_inode ri;
+
+	ino = i->i_ino & ROMFH_MASK;
+	i->i_mode = 0;
+
+	/* Loop for finding the real hard link */
+	for(;;) {
+		if (romfs_copyfrom(i, &ri, ino, ROMFH_SIZE) <= 0) {
+			printk("romfs: read error for inode 0x%x\n", ino);
+			return;
+		}
+		/* XXX: do romfs_checksum here too (with name) */
+
+		nextfh = ntohl(ri.next);
+		if ((nextfh & ROMFH_TYPE) != ROMFH_HRD)
+			break;
+
+		ino = ntohl(ri.spec) & ROMFH_MASK;
+	}
+
+	i->i_nlink = 1;		/* Hard to decide.. */
+	i->i_size = ntohl(ri.size);
+	i->i_mtime = i->i_atime = i->i_ctime = 0;
+	i->i_uid = i->i_gid = 0;
+
+        /* Precalculate the data offset */
+        ino = romfs_strnlen(i, ino+ROMFH_SIZE, ROMFS_MAXFN);
+        if (ino >= 0)
+                ino = ((ROMFH_SIZE+ino+1+ROMFH_PAD)&ROMFH_MASK);
+        else
+                ino = 0;
+
+        i->u.romfs_i.i_metasize = ino;
+        i->u.romfs_i.i_dataoffset = ino+(i->i_ino&ROMFH_MASK);
+
+        /* Compute permissions */
+        ino = romfs_modemap[nextfh & ROMFH_TYPE];
+	/* only "normal" files have ops */
+	switch (nextfh & ROMFH_TYPE) {
+		case 1:
+			i->i_size = i->u.romfs_i.i_metasize;
+			i->i_op = &romfs_dir_inode_operations;
+			i->i_fop = &romfs_dir_operations;
+			if (nextfh & ROMFH_EXEC)
+				ino |= S_IXUGO;
+			i->i_mode = ino;
+			break;
+		case 2:
+			i->i_fop = &generic_ro_fops;
+			i->i_data.a_ops = &romfs_aops;
+			if (nextfh & ROMFH_EXEC)
+				ino |= S_IXUGO;
+			i->i_mode = ino;
+			break;
+		case 3:
+			i->i_op = &page_symlink_inode_operations;
+			i->i_data.a_ops = &romfs_aops;
+			i->i_mode = ino | S_IRWXUGO;
+			break;
+		default:
+			/* depending on MBZ for sock/fifos */
+			nextfh = ntohl(ri.spec);
+			nextfh = kdev_t_to_nr(MKDEV(nextfh>>16,nextfh&0xffff));
+			init_special_inode(i, ino, nextfh);
+	}
+}
+
+static struct super_operations romfs_ops = {
+	read_inode:	romfs_read_inode,
+	statfs:		romfs_statfs,
+};
+
+static DECLARE_FSTYPE_DEV(romfs_fs_type, "romfs", romfs_read_super);
+
+static int __init init_romfs_fs(void)
+{
+	return register_filesystem(&romfs_fs_type);
+}
+
+static void __exit exit_romfs_fs(void)
+{
+	unregister_filesystem(&romfs_fs_type);
+}
+
+/* Yes, works even as a module... :) */
+
+EXPORT_NO_SYMBOLS;
+
+module_init(init_romfs_fs)
+module_exit(exit_romfs_fs)
+MODULE_LICENSE("GPL");
diff --git a/fs/select.c b/fs/select.c
new file mode 100644
index 00000000000000..65ff400a89f62c
--- /dev/null
+++ b/fs/select.c
@@ -0,0 +1,496 @@
+/*
+ * This file contains the procedures for the handling of select and poll
+ *
+ * Created for Linux based loosely upon Mathius Lattner's minix
+ * patches by Peter MacDonald. Heavily edited by Linus.
+ *
+ *  4 February 1994
+ *     COFF/ELF binary emulation. If the process has the STICKY_TIMEOUTS
+ *     flag set in its personality we do *not* modify the given timeout
+ *     parameter to reflect time remaining.
+ *
+ *  24 January 2000
+ *     Changed sys_poll()/do_poll() to use PAGE_SIZE chunk-based allocation 
+ *     of fds to overcome nfds < 16390 descriptors limit (Tigran Aivazian).
+ */
+
+#include <linux/slab.h>
+#include <linux/smp_lock.h>
+#include <linux/poll.h>
+#include <linux/personality.h> /* for STICKY_TIMEOUTS */
+#include <linux/file.h>
+
+#include <asm/uaccess.h>
+
+#define ROUND_UP(x,y) (((x)+(y)-1)/(y))
+#define DEFAULT_POLLMASK (POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM)
+
+struct poll_table_entry {
+	struct file * filp;
+	wait_queue_t wait;
+	wait_queue_head_t * wait_address;
+};
+
+struct poll_table_page {
+	struct poll_table_page * next;
+	struct poll_table_entry * entry;
+	struct poll_table_entry entries[0];
+};
+
+#define POLL_TABLE_FULL(table) \
+	((unsigned long)((table)->entry+1) > PAGE_SIZE + (unsigned long)(table))
+
+/*
+ * Ok, Peter made a complicated, but straightforward multiple_wait() function.
+ * I have rewritten this, taking some shortcuts: This code may not be easy to
+ * follow, but it should be free of race-conditions, and it's practical. If you
+ * understand what I'm doing here, then you understand how the linux
+ * sleep/wakeup mechanism works.
+ *
+ * Two very simple procedures, poll_wait() and poll_freewait() make all the
+ * work.  poll_wait() is an inline-function defined in <linux/poll.h>,
+ * as all select/poll functions have to call it to add an entry to the
+ * poll table.
+ */
+
+void poll_freewait(poll_table* pt)
+{
+	struct poll_table_page * p = pt->table;
+	while (p) {
+		struct poll_table_entry * entry;
+		struct poll_table_page *old;
+
+		entry = p->entry;
+		do {
+			entry--;
+			remove_wait_queue(entry->wait_address,&entry->wait);
+			fput(entry->filp);
+		} while (entry > p->entries);
+		old = p;
+		p = p->next;
+		free_page((unsigned long) old);
+	}
+}
+
+void __pollwait(struct file * filp, wait_queue_head_t * wait_address, poll_table *p)
+{
+	struct poll_table_page *table = p->table;
+
+	if (!table || POLL_TABLE_FULL(table)) {
+		struct poll_table_page *new_table;
+
+		new_table = (struct poll_table_page *) __get_free_page(GFP_KERNEL);
+		if (!new_table) {
+			p->error = -ENOMEM;
+			__set_current_state(TASK_RUNNING);
+			return;
+		}
+		new_table->entry = new_table->entries;
+		new_table->next = table;
+		p->table = new_table;
+		table = new_table;
+	}
+
+	/* Add a new entry */
+	{
+		struct poll_table_entry * entry = table->entry;
+		table->entry = entry+1;
+	 	get_file(filp);
+	 	entry->filp = filp;
+		entry->wait_address = wait_address;
+		init_waitqueue_entry(&entry->wait, current);
+		add_wait_queue(wait_address,&entry->wait);
+	}
+}
+
+#define __IN(fds, n)		(fds->in + n)
+#define __OUT(fds, n)		(fds->out + n)
+#define __EX(fds, n)		(fds->ex + n)
+#define __RES_IN(fds, n)	(fds->res_in + n)
+#define __RES_OUT(fds, n)	(fds->res_out + n)
+#define __RES_EX(fds, n)	(fds->res_ex + n)
+
+#define BITS(fds, n)		(*__IN(fds, n)|*__OUT(fds, n)|*__EX(fds, n))
+
+static int max_select_fd(unsigned long n, fd_set_bits *fds)
+{
+	unsigned long *open_fds;
+	unsigned long set;
+	int max;
+
+	/* handle last in-complete long-word first */
+	set = ~(~0UL << (n & (__NFDBITS-1)));
+	n /= __NFDBITS;
+	open_fds = current->files->open_fds->fds_bits+n;
+	max = 0;
+	if (set) {
+		set &= BITS(fds, n);
+		if (set) {
+			if (!(set & ~*open_fds))
+				goto get_max;
+			return -EBADF;
+		}
+	}
+	while (n) {
+		open_fds--;
+		n--;
+		set = BITS(fds, n);
+		if (!set)
+			continue;
+		if (set & ~*open_fds)
+			return -EBADF;
+		if (max)
+			continue;
+get_max:
+		do {
+			max++;
+			set >>= 1;
+		} while (set);
+		max += n * __NFDBITS;
+	}
+
+	return max;
+}
+
+#define BIT(i)		(1UL << ((i)&(__NFDBITS-1)))
+#define MEM(i,m)	((m)+(unsigned)(i)/__NFDBITS)
+#define ISSET(i,m)	(((i)&*(m)) != 0)
+#define SET(i,m)	(*(m) |= (i))
+
+#define POLLIN_SET (POLLRDNORM | POLLRDBAND | POLLIN | POLLHUP | POLLERR)
+#define POLLOUT_SET (POLLWRBAND | POLLWRNORM | POLLOUT | POLLERR)
+#define POLLEX_SET (POLLPRI)
+
+int do_select(int n, fd_set_bits *fds, long *timeout)
+{
+	poll_table table, *wait;
+	int retval, i, off;
+	long __timeout = *timeout;
+
+ 	read_lock(&current->files->file_lock);
+	retval = max_select_fd(n, fds);
+	read_unlock(&current->files->file_lock);
+
+	if (retval < 0)
+		return retval;
+	n = retval;
+
+	poll_initwait(&table);
+	wait = &table;
+	if (!__timeout)
+		wait = NULL;
+	retval = 0;
+	for (;;) {
+		set_current_state(TASK_INTERRUPTIBLE);
+		for (i = 0 ; i < n; i++) {
+			unsigned long bit = BIT(i);
+			unsigned long mask;
+			struct file *file;
+
+			off = i / __NFDBITS;
+			if (!(bit & BITS(fds, off)))
+				continue;
+			file = fget(i);
+			mask = POLLNVAL;
+			if (file) {
+				mask = DEFAULT_POLLMASK;
+				if (file->f_op && file->f_op->poll)
+					mask = file->f_op->poll(file, wait);
+				fput(file);
+			}
+			if ((mask & POLLIN_SET) && ISSET(bit, __IN(fds,off))) {
+				SET(bit, __RES_IN(fds,off));
+				retval++;
+				wait = NULL;
+			}
+			if ((mask & POLLOUT_SET) && ISSET(bit, __OUT(fds,off))) {
+				SET(bit, __RES_OUT(fds,off));
+				retval++;
+				wait = NULL;
+			}
+			if ((mask & POLLEX_SET) && ISSET(bit, __EX(fds,off))) {
+				SET(bit, __RES_EX(fds,off));
+				retval++;
+				wait = NULL;
+			}
+		}
+		wait = NULL;
+		if (retval || !__timeout || signal_pending(current))
+			break;
+		if(table.error) {
+			retval = table.error;
+			break;
+		}
+		__timeout = schedule_timeout(__timeout);
+	}
+	current->state = TASK_RUNNING;
+
+	poll_freewait(&table);
+
+	/*
+	 * Up-to-date the caller timeout.
+	 */
+	*timeout = __timeout;
+	return retval;
+}
+
+static void *select_bits_alloc(int size)
+{
+	return kmalloc(6 * size, GFP_KERNEL);
+}
+
+static void select_bits_free(void *bits, int size)
+{
+	kfree(bits);
+}
+
+/*
+ * We can actually return ERESTARTSYS instead of EINTR, but I'd
+ * like to be certain this leads to no problems. So I return
+ * EINTR just for safety.
+ *
+ * Update: ERESTARTSYS breaks at least the xview clock binary, so
+ * I'm trying ERESTARTNOHAND which restart only when you want to.
+ */
+#define MAX_SELECT_SECONDS \
+	((unsigned long) (MAX_SCHEDULE_TIMEOUT / HZ)-1)
+
+asmlinkage long
+sys_select(int n, fd_set *inp, fd_set *outp, fd_set *exp, struct timeval *tvp)
+{
+	fd_set_bits fds;
+	char *bits;
+	long timeout;
+	int ret, size, max_fdset;
+
+	timeout = MAX_SCHEDULE_TIMEOUT;
+	if (tvp) {
+		time_t sec, usec;
+
+		if ((ret = verify_area(VERIFY_READ, tvp, sizeof(*tvp)))
+		    || (ret = __get_user(sec, &tvp->tv_sec))
+		    || (ret = __get_user(usec, &tvp->tv_usec)))
+			goto out_nofds;
+
+		ret = -EINVAL;
+		if (sec < 0 || usec < 0)
+			goto out_nofds;
+
+		if ((unsigned long) sec < MAX_SELECT_SECONDS) {
+			timeout = ROUND_UP(usec, 1000000/HZ);
+			timeout += sec * (unsigned long) HZ;
+		}
+	}
+
+	ret = -EINVAL;
+	if (n < 0)
+		goto out_nofds;
+
+	/* max_fdset can increase, so grab it once to avoid race */
+	max_fdset = current->files->max_fdset;
+	if (n > max_fdset)
+		n = max_fdset;
+
+	/*
+	 * We need 6 bitmaps (in/out/ex for both incoming and outgoing),
+	 * since we used fdset we need to allocate memory in units of
+	 * long-words. 
+	 */
+	ret = -ENOMEM;
+	size = FDS_BYTES(n);
+	bits = select_bits_alloc(size);
+	if (!bits)
+		goto out_nofds;
+	fds.in      = (unsigned long *)  bits;
+	fds.out     = (unsigned long *) (bits +   size);
+	fds.ex      = (unsigned long *) (bits + 2*size);
+	fds.res_in  = (unsigned long *) (bits + 3*size);
+	fds.res_out = (unsigned long *) (bits + 4*size);
+	fds.res_ex  = (unsigned long *) (bits + 5*size);
+
+	if ((ret = get_fd_set(n, inp, fds.in)) ||
+	    (ret = get_fd_set(n, outp, fds.out)) ||
+	    (ret = get_fd_set(n, exp, fds.ex)))
+		goto out;
+	zero_fd_set(n, fds.res_in);
+	zero_fd_set(n, fds.res_out);
+	zero_fd_set(n, fds.res_ex);
+
+	ret = do_select(n, &fds, &timeout);
+
+	if (tvp && !(current->personality & STICKY_TIMEOUTS)) {
+		time_t sec = 0, usec = 0;
+		if (timeout) {
+			sec = timeout / HZ;
+			usec = timeout % HZ;
+			usec *= (1000000/HZ);
+		}
+		put_user(sec, &tvp->tv_sec);
+		put_user(usec, &tvp->tv_usec);
+	}
+
+	if (ret < 0)
+		goto out;
+	if (!ret) {
+		ret = -ERESTARTNOHAND;
+		if (signal_pending(current))
+			goto out;
+		ret = 0;
+	}
+
+	set_fd_set(n, inp, fds.res_in);
+	set_fd_set(n, outp, fds.res_out);
+	set_fd_set(n, exp, fds.res_ex);
+
+out:
+	select_bits_free(bits, size);
+out_nofds:
+	return ret;
+}
+
+#define POLLFD_PER_PAGE  ((PAGE_SIZE) / sizeof(struct pollfd))
+
+static void do_pollfd(unsigned int num, struct pollfd * fdpage,
+	poll_table ** pwait, int *count)
+{
+	int i;
+
+	for (i = 0; i < num; i++) {
+		int fd;
+		unsigned int mask;
+		struct pollfd *fdp;
+
+		mask = 0;
+		fdp = fdpage+i;
+		fd = fdp->fd;
+		if (fd >= 0) {
+			struct file * file = fget(fd);
+			mask = POLLNVAL;
+			if (file != NULL) {
+				mask = DEFAULT_POLLMASK;
+				if (file->f_op && file->f_op->poll)
+					mask = file->f_op->poll(file, *pwait);
+				mask &= fdp->events | POLLERR | POLLHUP;
+				fput(file);
+			}
+			if (mask) {
+				*pwait = NULL;
+				(*count)++;
+			}
+		}
+		fdp->revents = mask;
+	}
+}
+
+static int do_poll(unsigned int nfds, unsigned int nchunks, unsigned int nleft, 
+	struct pollfd *fds[], poll_table *wait, long timeout)
+{
+	int count;
+	poll_table* pt = wait;
+
+	for (;;) {
+		unsigned int i;
+
+		set_current_state(TASK_INTERRUPTIBLE);
+		count = 0;
+		for (i=0; i < nchunks; i++)
+			do_pollfd(POLLFD_PER_PAGE, fds[i], &pt, &count);
+		if (nleft)
+			do_pollfd(nleft, fds[nchunks], &pt, &count);
+		pt = NULL;
+		if (count || !timeout || signal_pending(current))
+			break;
+		count = wait->error;
+		if (count)
+			break;
+		timeout = schedule_timeout(timeout);
+	}
+	current->state = TASK_RUNNING;
+	return count;
+}
+
+asmlinkage long sys_poll(struct pollfd * ufds, unsigned int nfds, long timeout)
+{
+	int i, j, fdcount, err;
+	struct pollfd **fds;
+	poll_table table, *wait;
+	int nchunks, nleft;
+
+	/* Do a sanity check on nfds ... */
+	if (nfds > current->files->max_fdset && nfds > OPEN_MAX)
+		return -EINVAL;
+
+	if (timeout) {
+		/* Careful about overflow in the intermediate values */
+		if ((unsigned long) timeout < MAX_SCHEDULE_TIMEOUT / HZ)
+			timeout = (unsigned long)(timeout*HZ+999)/1000+1;
+		else /* Negative or overflow */
+			timeout = MAX_SCHEDULE_TIMEOUT;
+	}
+
+	poll_initwait(&table);
+	wait = &table;
+	if (!timeout)
+		wait = NULL;
+
+	err = -ENOMEM;
+	fds = NULL;
+	if (nfds != 0) {
+		fds = (struct pollfd **)kmalloc(
+			(1 + (nfds - 1) / POLLFD_PER_PAGE) * sizeof(struct pollfd *),
+			GFP_KERNEL);
+		if (fds == NULL)
+			goto out;
+	}
+
+	nchunks = 0;
+	nleft = nfds;
+	while (nleft > POLLFD_PER_PAGE) { /* allocate complete PAGE_SIZE chunks */
+		fds[nchunks] = (struct pollfd *)__get_free_page(GFP_KERNEL);
+		if (fds[nchunks] == NULL)
+			goto out_fds;
+		nchunks++;
+		nleft -= POLLFD_PER_PAGE;
+	}
+	if (nleft) { /* allocate last PAGE_SIZE chunk, only nleft elements used */
+		fds[nchunks] = (struct pollfd *)__get_free_page(GFP_KERNEL);
+		if (fds[nchunks] == NULL)
+			goto out_fds;
+	}
+
+	err = -EFAULT;
+	for (i=0; i < nchunks; i++)
+		if (copy_from_user(fds[i], ufds + i*POLLFD_PER_PAGE, PAGE_SIZE))
+			goto out_fds1;
+	if (nleft) {
+		if (copy_from_user(fds[nchunks], ufds + nchunks*POLLFD_PER_PAGE, 
+				nleft * sizeof(struct pollfd)))
+			goto out_fds1;
+	}
+
+	fdcount = do_poll(nfds, nchunks, nleft, fds, wait, timeout);
+
+	/* OK, now copy the revents fields back to user space. */
+	for(i=0; i < nchunks; i++)
+		for (j=0; j < POLLFD_PER_PAGE; j++, ufds++)
+			__put_user((fds[i] + j)->revents, &ufds->revents);
+	if (nleft)
+		for (j=0; j < nleft; j++, ufds++)
+			__put_user((fds[nchunks] + j)->revents, &ufds->revents);
+
+	err = fdcount;
+	if (!fdcount && signal_pending(current))
+		err = -EINTR;
+
+out_fds1:
+	if (nleft)
+		free_page((unsigned long)(fds[nchunks]));
+out_fds:
+	for (i=0; i < nchunks; i++)
+		free_page((unsigned long)(fds[i]));
+	if (nfds != 0)
+		kfree(fds);
+out:
+	poll_freewait(&table);
+	return err;
+}
diff --git a/fs/seq_file.c b/fs/seq_file.c
new file mode 100644
index 00000000000000..524bafeb8691eb
--- /dev/null
+++ b/fs/seq_file.c
@@ -0,0 +1,381 @@
+/*
+ * linux/fs/seq_file.c
+ *
+ * helper functions for making synthetic files from sequences of records.
+ * initial implementation -- AV, Oct 2001.
+ */
+
+#include <linux/fs.h>
+#include <linux/seq_file.h>
+#include <linux/slab.h>
+
+#include <asm/uaccess.h>
+#include <asm/page.h>
+
+/**
+ *	seq_open -	initialize sequential file
+ *	@file: file we initialize
+ *	@op: method table describing the sequence
+ *
+ *	seq_open() sets @file, associating it with a sequence described
+ *	by @op.  @op->start() sets the iterator up and returns the first
+ *	element of sequence. @op->stop() shuts it down.  @op->next()
+ *	returns the next element of sequence.  @op->show() prints element
+ *	into the buffer.  In case of error ->start() and ->next() return
+ *	ERR_PTR(error).  In the end of sequence they return %NULL. ->show()
+ *	returns 0 in case of success and negative number in case of error.
+ */
+int seq_open(struct file *file, struct seq_operations *op)
+{
+	struct seq_file *p = kmalloc(sizeof(*p), GFP_KERNEL);
+	if (!p)
+		return -ENOMEM;
+	memset(p, 0, sizeof(*p));
+	sema_init(&p->sem, 1);
+	p->op = op;
+	file->private_data = p;
+	return 0;
+}
+
+/**
+ *	seq_read -	->read() method for sequential files.
+ *	@file, @buf, @size, @ppos: see file_operations method
+ *
+ *	Ready-made ->f_op->read()
+ */
+ssize_t seq_read(struct file *file, char *buf, size_t size, loff_t *ppos)
+{
+	struct seq_file *m = (struct seq_file *)file->private_data;
+	size_t copied = 0;
+	loff_t pos;
+	size_t n;
+	void *p;
+	int err = 0;
+
+	if (ppos != &file->f_pos)
+		return -EPIPE;
+
+	down(&m->sem);
+	/* grab buffer if we didn't have one */
+	if (!m->buf) {
+		m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL);
+		if (!m->buf)
+			goto Enomem;
+	}
+	/* if not empty - flush it first */
+	if (m->count) {
+		n = min(m->count, size);
+		err = copy_to_user(buf, m->buf + m->from, n);
+		if (err)
+			goto Efault;
+		m->count -= n;
+		m->from += n;
+		size -= n;
+		buf += n;
+		copied += n;
+		if (!m->count)
+			m->index++;
+		if (!size)
+			goto Done;
+	}
+	/* we need at least one record in buffer */
+	while (1) {
+		pos = m->index;
+		p = m->op->start(m, &pos);
+		err = PTR_ERR(p);
+		if (!p || IS_ERR(p))
+			break;
+		err = m->op->show(m, p);
+		if (err)
+			break;
+		if (m->count < m->size)
+			goto Fill;
+		m->op->stop(m, p);
+		kfree(m->buf);
+		m->buf = kmalloc(m->size <<= 1, GFP_KERNEL);
+		if (!m->buf)
+			goto Enomem;
+		m->count = 0;
+	}
+	m->op->stop(m, p);
+	m->count = 0;
+	goto Done;
+Fill:
+	/* they want more? let's try to get some more */
+	while (m->count < size) {
+		size_t offs = m->count;
+		loff_t next = pos;
+		p = m->op->next(m, p, &next);
+		if (!p || IS_ERR(p)) {
+			err = PTR_ERR(p);
+			break;
+		}
+		err = m->op->show(m, p);
+		if (err || m->count == m->size) {
+			m->count = offs;
+			break;
+		}
+		pos = next;
+	}
+	m->op->stop(m, p);
+	n = min(m->count, size);
+	err = copy_to_user(buf, m->buf, n);
+	if (err)
+		goto Efault;
+	copied += n;
+	m->count -= n;
+	if (m->count)
+		m->from = n;
+	else
+		pos++;
+	m->index = pos;
+Done:
+	if (!copied)
+		copied = err;
+	else
+		*ppos += copied;
+	up(&m->sem);
+	return copied;
+Enomem:
+	err = -ENOMEM;
+	goto Done;
+Efault:
+	err = -EFAULT;
+	goto Done;
+}
+
+static int traverse(struct seq_file *m, loff_t offset)
+{
+	loff_t pos = 0;
+	int error = 0;
+	void *p;
+
+	m->index = 0;
+	m->count = m->from = 0;
+	if (!offset)
+		return 0;
+	if (!m->buf) {
+		m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL);
+		if (!m->buf)
+			return -ENOMEM;
+	}
+	p = m->op->start(m, &m->index);
+	while (p) {
+		error = PTR_ERR(p);
+		if (IS_ERR(p))
+			break;
+		error = m->op->show(m, p);
+		if (error)
+			break;
+		if (m->count == m->size)
+			goto Eoverflow;
+		if (pos + m->count > offset) {
+			m->from = offset - pos;
+			m->count -= m->from;
+			break;
+		}
+		pos += m->count;
+		m->count = 0;
+		if (pos == offset) {
+			m->index++;
+			break;
+		}
+		p = m->op->next(m, p, &m->index);
+	}
+	m->op->stop(m, p);
+	return error;
+
+Eoverflow:
+	m->op->stop(m, p);
+	kfree(m->buf);
+	m->buf = kmalloc(m->size <<= 1, GFP_KERNEL);
+	return !m->buf ? -ENOMEM : -EAGAIN;
+}
+
+/**
+ *	seq_lseek -	->llseek() method for sequential files.
+ *	@file, @offset, @origin: see file_operations method
+ *
+ *	Ready-made ->f_op->llseek()
+ */
+loff_t seq_lseek(struct file *file, loff_t offset, int origin)
+{
+	struct seq_file *m = (struct seq_file *)file->private_data;
+	long long retval = -EINVAL;
+
+	down(&m->sem);
+	switch (origin) {
+		case 1:
+			offset += file->f_pos;
+		case 0:
+			if (offset < 0)
+				break;
+			retval = offset;
+			if (offset != file->f_pos) {
+				while ((retval=traverse(m, offset)) == -EAGAIN)
+					;
+				if (retval) {
+					/* with extreme prejudice... */
+					file->f_pos = 0;
+					m->index = 0;
+					m->count = 0;
+				} else {
+					retval = file->f_pos = offset;
+				}
+			}
+	}
+	up(&m->sem);
+	return retval;
+}
+
+/**
+ *	seq_release -	free the structures associated with sequential file.
+ *	@file: file in question
+ *	@inode: file->f_dentry->d_inode
+ *
+ *	Frees the structures associated with sequential file; can be used
+ *	as ->f_op->release() if you don't have private data to destroy.
+ */
+int seq_release(struct inode *inode, struct file *file)
+{
+	struct seq_file *m = (struct seq_file *)file->private_data;
+	kfree(m->buf);
+	kfree(m);
+	return 0;
+}
+
+/**
+ *	seq_escape -	print string into buffer, escaping some characters
+ *	@m:	target buffer
+ *	@s:	string
+ *	@esc:	set of characters that need escaping
+ *
+ *	Puts string into buffer, replacing each occurrence of character from
+ *	@esc with usual octal escape.  Returns 0 in case of success, -1 - in
+ *	case of overflow.
+ */
+int seq_escape(struct seq_file *m, const char *s, const char *esc)
+{
+	char *end = m->buf + m->size;
+        char *p;
+	char c;
+
+        for (p = m->buf + m->count; (c = *s) != '\0' && p < end; s++) {
+		if (!strchr(esc, c)) {
+			*p++ = c;
+			continue;
+		}
+		if (p + 3 < end) {
+			*p++ = '\\';
+			*p++ = '0' + ((c & 0300) >> 6);
+			*p++ = '0' + ((c & 070) >> 3);
+			*p++ = '0' + (c & 07);
+			continue;
+		}
+		m->count = m->size;
+		return -1;
+        }
+	m->count = p - m->buf;
+        return 0;
+}
+
+int seq_printf(struct seq_file *m, const char *f, ...)
+{
+	va_list args;
+	int len;
+
+	if (m->count < m->size) {
+		va_start(args, f);
+		len = vsnprintf(m->buf + m->count, m->size - m->count, f, args);
+		va_end(args);
+		if (m->count + len < m->size) {
+			m->count += len;
+			return 0;
+		}
+	}
+	m->count = m->size;
+	return -1;
+}
+
+int seq_path(struct seq_file *m,
+		struct vfsmount *mnt, struct dentry *dentry,
+		char *esc)
+{
+	if (m->count < m->size) {
+		char *s = m->buf + m->count;
+		char *p = d_path(dentry, mnt, s, m->size - m->count);
+		if (!IS_ERR(p)) {
+			while (s <= p) {
+				char c = *p++;
+				if (!c) {
+					p = m->buf + m->count;
+					m->count = s - m->buf;
+					return s - p;
+				} else if (!strchr(esc, c)) {
+					*s++ = c;
+				} else if (s + 4 > p) {
+					break;
+				} else {
+					*s++ = '\\';
+					*s++ = '0' + ((c & 0300) >> 6);
+					*s++ = '0' + ((c & 070) >> 3);
+					*s++ = '0' + (c & 07);
+				}
+			}
+		}
+	}
+	m->count = m->size;
+	return -1;
+}
+
+static void *single_start(struct seq_file *p, loff_t *pos)
+{
+	return NULL + (*pos == 0);
+}
+
+static void *single_next(struct seq_file *p, void *v, loff_t *pos)
+{
+	++*pos;
+	return NULL;
+}
+
+static void single_stop(struct seq_file *p, void *v)
+{
+}
+
+int single_open(struct file *file, int (*show)(struct seq_file *, void*), void *data)
+{
+	struct seq_operations *op = kmalloc(sizeof(*op), GFP_KERNEL);
+	int res = -ENOMEM;
+
+	if (op) {
+		op->start = single_start;
+		op->next = single_next;
+		op->stop = single_stop;
+		op->show = show;
+		res = seq_open(file, op);
+		if (!res)
+			((struct seq_file *)file->private_data)->private = data;
+		else
+			kfree(op);
+	}
+	return res;
+}
+
+int single_release(struct inode *inode, struct file *file)
+{
+	struct seq_operations *op = ((struct seq_file *)file->private_data)->op;
+	int res = seq_release(inode, file);
+	kfree(op);
+	return res;
+}
+
+int seq_release_private(struct inode *inode, struct file *file)
+{
+	struct seq_file *seq = file->private_data;
+
+	kfree(seq->private);
+	seq->private = NULL;
+	return seq_release(inode, file);
+}
+
diff --git a/fs/smbfs/ChangeLog b/fs/smbfs/ChangeLog
new file mode 100644
index 00000000000000..064c53073f2c8a
--- /dev/null
+++ b/fs/smbfs/ChangeLog
@@ -0,0 +1,150 @@
+ChangeLog for smbfs.
+
+2004-01-24 Urban Widmark <urban@teststation.com>
+
+	* file.c, inode.c, proc.c: Large File Support
+
+2004-01-24 John Newbigin <jn@it.swin.edu.au>
+
+	* *.c: Implementation of CIFS Extensions for UNIX systems
+
+2001-12-31 René Scharfe <l.s.r@web.de>
+
+	* inode.c: added smb_show_options to show mount options in /proc/mounts
+	* inode.c, getopt.c, getopt.h: merged flag and has_arg in struct option
+	* inode.c: use S_IRWXUGO where appropriate
+
+2001-12-22 Urban Widmark <urban@teststation.com>
+
+	* file.c, proc.c: Fix problems triggered by the "fsx test"
+
+2001-09-17 Urban Widmark <urban@teststation.com>
+
+	* proc.c: Use 4096 (was 512) as the blocksize for better write
+	  performance (patch originally by Jan Kratochvil)
+	* proc.c: Skip disconnect smb, allows umount on unreachable servers.
+	* proc.c: Go back to the interruptible sleep as reconnects seem to
+	  handle it now.
+	* *.c: use autogenerated and private proto.h
+
+2000-11-22 Igor Zhbanov <bsg@uniyar.ac.ru>
+
+	* proc.c: fixed date_unix2dos for dates earlier than 01/01/1980
+	  and date_dos2unix for date==0 (from 2.2)
+
+2001-07-13 Rob Radez <rob@osinvestor.com>
+
+	* proc.c: make smb_errno return negative error values
+
+2001-07-09 Jochen Dolze <dolze@epcnet.de>
+
+	* inode.c: smb_statfs always returned success.
+	* proc.c, ioctl.c: Allow smbmount to signal failure to reconnect with
+	  a NULL argument to SMB_IOC_NEWCONN (speeds up error detection).
+	* proc.c: Add some of the missing error codes to smb_errno
+
+2001-06-12 Urban Widmark <urban@teststation.com>
+
+	* proc.c: replace the win95-flush fix with smb_seek, when needed.
+	* proc.c: readdir 'lastname' bug (NetApp dir listing fix)
+
+2001-05-08 Urban Widmark <urban@teststation.com>
+
+	* inode.c: Fix for changes on the server side not being detected
+	  properly. Must always drop cached pages when updating an inode with
+	  new size.
+
+2001-05-05 Urban Widmark <urban@teststation.com>
+
+	* file.c, proc.c: Drop SMB_F_LOCALWRITE to detect changes made on
+	  both server and client, using flush with to force win9x to remember
+	  the right filesize.
+
+2001-04-25 René Scharfe <l.s.r@web.de>
+
+	* inode.c: Don't clear s_flags and allow ro mounts
+
+2001-04-21 Urban Widmark <urban@teststation.com>
+
+	* dir.c, proc.c: replace tests on conn_pid with tests on state to
+	  fix smbmount reconnect on smb_retry timeout and up the timeout to 30s.
+	* proc.c: smb_newconn must have the server locked while updating it.
+	* inode.c, proc.c: need flush after truncate on some servers (win9x)
+	* file.c: add call to send SMBflush on fsync
+	  (as suggested by Jochen Dolze <dolze@epcnet.de>)
+
+2001-03-06 Urban Widmark <urban@teststation.com>
+
+	* cache.c: d_add on hashed dentries corrupts d_hash list and
+	  causes loops in d_lookup. Inherited bug. :)
+	* inode.c: tail -f fix for non-readonly opened files
+	  (related to the smb_proc_open change).
+	* inode.c: tail -f fix for fast size changes with the same mtime.
+
+2001-03-02 Michael Kockelkorn <m.kockelkorn@biodata.com>
+
+	* proc.c: fix smb_proc_open to allow open being called more than once
+	  with different modes (O_RDONLY -> O_WRONLY) without closing.
+
+2001-02-10 Urban Widmark <urban@teststation.com>
+
+	* dir.c, cache.c: replace non-bigmem safe cache with cache code
+	  from ncpfs and fix some other bigmem bugs in smbfs.
+	* inode.c: root dentry not properly initialized
+	* proc.c, sock.c: adjust max parameters & max data to follow max_xmit
+	  lots of servers were having find_next trouble with this.
+	* proc.c: use documented write method of truncating (NetApp fix)
+
+2000-08-14 Urban Widmark <urban@svenskatest.se>
+
+	* dir.c: support case sensitive shares
+	* inode.c: ascii mount options
+	* proc.c: check length of paths to avoid buffer overflow
+	* proc.c: don't do interruptable_sleep in smb_retry to avoid signal
+	  problem/race.
+	* proc.c: O_RDONLY & smb_revalidate_inode fix (tail -f)
+	* proc.c: add nls support
+	* sock.c: attempt to fix smb_data_callback (avoid infinite loop)
+
+2000-07-25 Urban Widmark <urban@svenskatest.se>
+
+	* proc.c: fix 3 places where bad server responses could cause an Oops.
+
+2000-07-15 Urban Widmark <urban@svenskatest.se>
+
+	* *.c: more debug (%.*s) & indent fixes
+
+2000-06-24: Matt Maynard <matthewm@corel.com>
+
+	* dir.c: dentry->d_inode->i_mtime isn't updated for all servers
+	  (NT?) and all operations (mv oldfile.txt newfile.txt) Removed for
+	  less efficient but better working directory cache.
+	* proc.c: included aDIR smbclient fix for renaming directories on
+	  OS/2 servers (win95/98?) (orig by John Janosik)
+
+2000-07-01 Urban Widmark <urban@svenskatest.se>
+
+	* *.c: replace ugly #ifdef's with less ugly debug macros.
+
+2000-01-03 Christian Groessler <cpg@aladdin.de>
+
+	* proc.c: added posix semantics for unlink
+
+1999-11-16 Andrew Tridgell
+
+	* proc.c: use level 260 for most conns, or level 1 for <NT1
+	* proc.c: don't sleep every time with win95 on a FINDNEXT
+	* proc.c: fixed loop_count bug
+	* proc.c: got rid of resume_key
+
+[there are a few missing here :) ]
+
+1997-09-28 Riccardo Facchetti
+
+	* proc.c: Fixed smb_d_path [now smb_build_path()] to be non-recursive
+
+1996-06-28 Yuri Per
+
+	* proc.c: Fixed long file name support (smb_proc_readdir_long)
+
+You are in the wrong end for adding new entries. New entries at the top.
diff --git a/fs/smbfs/Makefile b/fs/smbfs/Makefile
new file mode 100644
index 00000000000000..a4f19705d0179f
--- /dev/null
+++ b/fs/smbfs/Makefile
@@ -0,0 +1,41 @@
+#
+# Makefile for the linux smb-filesystem routines.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile...
+
+O_TARGET := smbfs.o
+
+obj-y   := proc.o dir.o cache.o sock.o inode.o file.o ioctl.o getopt.o symlink.o
+obj-m   := $(O_TARGET)
+
+# If you want debugging output, you may add these flags to the EXTRA_CFLAGS
+# SMBFS_PARANOIA should normally be enabled.
+
+EXTRA_CFLAGS += -DSMBFS_PARANOIA
+#EXTRA_CFLAGS += -DSMBFS_DEBUG
+#EXTRA_CFLAGS += -DSMBFS_DEBUG_VERBOSE
+#EXTRA_CFLAGS += -DDEBUG_SMB_MALLOC
+#EXTRA_CFLAGS += -DDEBUG_SMB_TIMESTAMP
+#EXTRA_CFLAGS += -Werror
+
+include $(TOPDIR)/Rules.make
+
+#
+# Maintainer rules
+#
+
+# getopt.c not included. It is intentionally separate
+SRC = proc.c dir.c cache.c sock.c inode.c file.c ioctl.c symlink.c
+
+proto:
+	-rm -f proto.h
+	@echo >  proto2.h "/*"
+	@echo >> proto2.h " *  Autogenerated with cproto on: " `date`
+	@echo >> proto2.h " */"
+	@echo >> proto2.h ""
+	cproto -E "gcc -E" -e -v -I $(TOPDIR)/include -DMAKING_PROTO -D__KERNEL__ $(SRC) >> proto2.h
+	mv proto2.h proto.h
diff --git a/fs/smbfs/cache.c b/fs/smbfs/cache.c
new file mode 100644
index 00000000000000..67b82ec2bd60e4
--- /dev/null
+++ b/fs/smbfs/cache.c
@@ -0,0 +1,208 @@
+/*
+ *  cache.c
+ *
+ * Copyright (C) 1997 by Bill Hawes
+ *
+ * Routines to support directory cacheing using the page cache.
+ * This cache code is almost directly taken from ncpfs.
+ *
+ * Please add a note about your changes to smbfs in the ChangeLog file.
+ */
+
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/dirent.h>
+#include <linux/smb_fs.h>
+#include <linux/pagemap.h>
+
+#include <asm/page.h>
+
+#include "smb_debug.h"
+#include "proto.h"
+
+/*
+ * Force the next attempt to use the cache to be a timeout.
+ * If we can't find the page that's fine, it will cause a refresh.
+ */
+void
+smb_invalid_dir_cache(struct inode * dir)
+{
+	struct smb_sb_info *server = server_from_inode(dir);
+	union  smb_dir_cache *cache = NULL;
+	struct page *page = NULL;
+
+	page = grab_cache_page(&dir->i_data, 0);
+	if (!page)
+		goto out;
+
+	if (!Page_Uptodate(page))
+		goto out_unlock;
+
+	cache = kmap(page);
+	cache->head.time = jiffies - SMB_MAX_AGE(server);
+
+	kunmap(page);
+	SetPageUptodate(page);
+out_unlock:
+	UnlockPage(page);
+	page_cache_release(page);
+out:
+	return;
+}
+
+/*
+ * Mark all dentries for 'parent' as invalid, forcing them to be re-read
+ */
+void
+smb_invalidate_dircache_entries(struct dentry *parent)
+{
+	struct smb_sb_info *server = server_from_dentry(parent);
+	struct list_head *next;
+	struct dentry *dentry;
+
+	spin_lock(&dcache_lock);
+	next = parent->d_subdirs.next;
+	while (next != &parent->d_subdirs) {
+		dentry = list_entry(next, struct dentry, d_child);
+		dentry->d_fsdata = NULL;
+		smb_age_dentry(server, dentry);
+		next = next->next;
+	}
+	spin_unlock(&dcache_lock);
+}
+
+/*
+ * dget, but require that fpos and parent matches what the dentry contains.
+ * dentry is not known to be a valid pointer at entry.
+ */
+struct dentry *
+smb_dget_fpos(struct dentry *dentry, struct dentry *parent, unsigned long fpos)
+{
+	struct dentry *dent = dentry;
+	struct list_head *next;
+
+	if (d_validate(dent, parent)) {
+		if (dent->d_name.len <= SMB_MAXNAMELEN &&
+		    (unsigned long)dent->d_fsdata == fpos) {
+			if (!dent->d_inode) {
+				dput(dent);
+				dent = NULL;
+			}
+			return dent;
+		}
+		dput(dent);
+	}
+
+	/* If a pointer is invalid, we search the dentry. */
+	spin_lock(&dcache_lock);
+	next = parent->d_subdirs.next;
+	while (next != &parent->d_subdirs) {
+		dent = list_entry(next, struct dentry, d_child);
+		if ((unsigned long)dent->d_fsdata == fpos) {
+			if (dent->d_inode)
+				dget_locked(dent);
+			else
+				dent = NULL;
+			goto out_unlock;
+		}
+		next = next->next;
+	}
+	dent = NULL;
+out_unlock:
+	spin_unlock(&dcache_lock);
+	return dent;
+}
+
+
+/*
+ * Create dentry/inode for this file and add it to the dircache.
+ */
+int
+smb_fill_cache(struct file *filp, void *dirent, filldir_t filldir,
+	       struct smb_cache_control *ctrl, struct qstr *qname,
+	       struct smb_fattr *entry)
+{
+	struct dentry *newdent, *dentry = filp->f_dentry;
+	struct inode *newino, *inode = dentry->d_inode;
+	struct smb_cache_control ctl = *ctrl;
+	int valid = 0;
+	int hashed = 0;
+	ino_t ino = 0;
+
+	qname->hash = full_name_hash(qname->name, qname->len);
+
+	if (dentry->d_op && dentry->d_op->d_hash)
+		if (dentry->d_op->d_hash(dentry, qname) != 0)
+			goto end_advance;
+
+	newdent = d_lookup(dentry, qname);
+
+	if (!newdent) {
+		newdent = d_alloc(dentry, qname);
+		if (!newdent)
+			goto end_advance;
+	} else {
+		hashed = 1;
+		memcpy((char *) newdent->d_name.name, qname->name,
+		       newdent->d_name.len);
+	}
+
+	if (!newdent->d_inode) {
+		smb_renew_times(newdent);
+		entry->f_ino = iunique(inode->i_sb, 2);
+		newino = smb_iget(inode->i_sb, entry);
+		if (newino) {
+			smb_new_dentry(newdent);
+			d_instantiate(newdent, newino);
+			if (!hashed)
+				d_rehash(newdent);
+		}
+	} else
+		smb_set_inode_attr(newdent->d_inode, entry);
+
+        if (newdent->d_inode) {
+		ino = newdent->d_inode->i_ino;
+		newdent->d_fsdata = (void *) ctl.fpos;
+		smb_new_dentry(newdent);
+	}
+
+	if (ctl.idx >= SMB_DIRCACHE_SIZE) {
+		if (ctl.page) {
+			kunmap(ctl.page);
+			SetPageUptodate(ctl.page);
+			UnlockPage(ctl.page);
+			page_cache_release(ctl.page);
+		}
+		ctl.cache = NULL;
+		ctl.idx  -= SMB_DIRCACHE_SIZE;
+		ctl.ofs  += 1;
+		ctl.page  = grab_cache_page(&inode->i_data, ctl.ofs);
+		if (ctl.page)
+			ctl.cache = kmap(ctl.page);
+	}
+	if (ctl.cache) {
+		ctl.cache->dentry[ctl.idx] = newdent;
+		valid = 1;
+	}
+	dput(newdent);
+
+end_advance:
+	if (!valid)
+		ctl.valid = 0;
+	if (!ctl.filled && (ctl.fpos == filp->f_pos)) {
+		if (!ino)
+			ino = find_inode_number(dentry, qname);
+		if (!ino)
+			ino = iunique(inode->i_sb, 2);
+		ctl.filled = filldir(dirent, qname->name, qname->len,
+				     filp->f_pos, ino, DT_UNKNOWN);
+		if (!ctl.filled)
+			filp->f_pos += 1;
+	}
+	ctl.fpos += 1;
+	ctl.idx  += 1;
+	*ctrl = ctl;
+	return (ctl.valid || !ctl.filled);
+}
diff --git a/fs/smbfs/dir.c b/fs/smbfs/dir.c
new file mode 100644
index 00000000000000..7c0a0de7678cad
--- /dev/null
+++ b/fs/smbfs/dir.c
@@ -0,0 +1,661 @@
+/*
+ *  dir.c
+ *
+ *  Copyright (C) 1995, 1996 by Paal-Kr. Engstad and Volker Lendecke
+ *  Copyright (C) 1997 by Volker Lendecke
+ *
+ *  Please add a note about your changes to smbfs in the ChangeLog file.
+ */
+
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/smp_lock.h>
+#include <linux/ctype.h>
+
+#include <linux/smb_fs.h>
+#include <linux/smb_mount.h>
+#include <linux/smbno.h>
+
+#include "smb_debug.h"
+#include "proto.h"
+
+static int smb_readdir(struct file *, void *, filldir_t);
+static int smb_dir_open(struct inode *, struct file *);
+
+static struct dentry *smb_lookup(struct inode *, struct dentry *);
+static int smb_create(struct inode *, struct dentry *, int);
+static int smb_mkdir(struct inode *, struct dentry *, int);
+static int smb_rmdir(struct inode *, struct dentry *);
+static int smb_unlink(struct inode *, struct dentry *);
+static int smb_rename(struct inode *, struct dentry *,
+		      struct inode *, struct dentry *);
+static int smb_make_node(struct inode *,struct dentry *, int, int);
+static int smb_link(struct dentry *, struct inode *, struct dentry *);
+
+struct file_operations smb_dir_operations =
+{
+	read:		generic_read_dir,
+	readdir:	smb_readdir,
+	ioctl:		smb_ioctl,
+	open:		smb_dir_open,
+};
+
+struct inode_operations smb_dir_inode_operations =
+{
+	create:		smb_create,
+	lookup:		smb_lookup,
+	unlink:		smb_unlink,
+	mkdir:		smb_mkdir,
+	rmdir:		smb_rmdir,
+	rename:		smb_rename,
+	revalidate:	smb_revalidate_inode,
+	setattr:	smb_notify_change,
+};
+
+struct inode_operations smb_dir_inode_operations_unix =
+{
+	create:		smb_create,
+	lookup:		smb_lookup,
+	unlink:		smb_unlink,
+	mkdir:		smb_mkdir,
+	rmdir:		smb_rmdir,
+	rename:		smb_rename,
+	revalidate:	smb_revalidate_inode,
+	setattr:	smb_notify_change,
+	symlink:	smb_symlink,
+	mknod:		smb_make_node,
+	link:		smb_link,
+};
+
+/*
+ * Read a directory, using filldir to fill the dirent memory.
+ * smb_proc_readdir does the actual reading from the smb server.
+ *
+ * The cache code is almost directly taken from ncpfs
+ */
+static int 
+smb_readdir(struct file *filp, void *dirent, filldir_t filldir)
+{
+	struct dentry *dentry = filp->f_dentry;
+	struct inode *dir = dentry->d_inode;
+	struct smb_sb_info *server = server_from_dentry(dentry);
+	union  smb_dir_cache *cache = NULL;
+	struct smb_cache_control ctl;
+	struct page *page = NULL;
+	int result;
+
+	ctl.page  = NULL;
+	ctl.cache = NULL;
+
+	VERBOSE("reading %s/%s, f_pos=%d\n",
+		DENTRY_PATH(dentry),  (int) filp->f_pos);
+
+	result = 0;
+	switch ((unsigned int) filp->f_pos) {
+	case 0:
+		if (filldir(dirent, ".", 1, 0, dir->i_ino, DT_DIR) < 0)
+			goto out;
+		filp->f_pos = 1;
+		/* fallthrough */
+	case 1:
+		if (filldir(dirent, "..", 2, 1,
+			    dentry->d_parent->d_inode->i_ino, DT_DIR) < 0)
+			goto out;
+		filp->f_pos = 2;
+	}
+
+	/*
+	 * Make sure our inode is up-to-date.
+	 */
+	result = smb_revalidate_inode(dentry);
+	if (result)
+		goto out;
+
+
+	page = grab_cache_page(&dir->i_data, 0);
+	if (!page)
+		goto read_really;
+
+	ctl.cache = cache = kmap(page);
+	ctl.head  = cache->head;
+
+	if (!Page_Uptodate(page) || !ctl.head.eof) {
+		VERBOSE("%s/%s, page uptodate=%d, eof=%d\n",
+			 DENTRY_PATH(dentry), Page_Uptodate(page),ctl.head.eof);
+		goto init_cache;
+	}
+
+	if (filp->f_pos == 2) {
+		if (jiffies - ctl.head.time >= SMB_MAX_AGE(server))
+			goto init_cache;
+
+		/*
+		 * N.B. ncpfs checks mtime of dentry too here, we don't.
+		 *   1. common smb servers do not update mtime on dir changes
+		 *   2. it requires an extra smb request
+		 *      (revalidate has the same timeout as ctl.head.time)
+		 *
+		 * Instead smbfs invalidates its own cache on local changes
+		 * and remote changes are not seen until timeout.
+		 */
+	}
+
+	if (filp->f_pos > ctl.head.end)
+		goto finished;
+
+	ctl.fpos = filp->f_pos + (SMB_DIRCACHE_START - 2);
+	ctl.ofs  = ctl.fpos / SMB_DIRCACHE_SIZE;
+	ctl.idx  = ctl.fpos % SMB_DIRCACHE_SIZE;
+
+	for (;;) {
+		if (ctl.ofs != 0) {
+			ctl.page = find_lock_page(&dir->i_data, ctl.ofs);
+			if (!ctl.page)
+				goto invalid_cache;
+			ctl.cache = kmap(ctl.page);
+			if (!Page_Uptodate(ctl.page))
+				goto invalid_cache;
+		}
+		while (ctl.idx < SMB_DIRCACHE_SIZE) {
+			struct dentry *dent;
+			int res;
+
+			dent = smb_dget_fpos(ctl.cache->dentry[ctl.idx],
+					     dentry, filp->f_pos);
+			if (!dent)
+				goto invalid_cache;
+
+			res = filldir(dirent, dent->d_name.name,
+				      dent->d_name.len, filp->f_pos,
+				      dent->d_inode->i_ino, DT_UNKNOWN);
+			dput(dent);
+			if (res)
+				goto finished;
+			filp->f_pos += 1;
+			ctl.idx += 1;
+			if (filp->f_pos > ctl.head.end)
+				goto finished;
+		}
+		if (ctl.page) {
+			kunmap(ctl.page);
+			SetPageUptodate(ctl.page);
+			UnlockPage(ctl.page);
+			page_cache_release(ctl.page);
+			ctl.page = NULL;
+		}
+		ctl.idx  = 0;
+		ctl.ofs += 1;
+	}
+invalid_cache:
+	if (ctl.page) {
+		kunmap(ctl.page);
+		UnlockPage(ctl.page);
+		page_cache_release(ctl.page);
+		ctl.page = NULL;
+	}
+	ctl.cache = cache;
+init_cache:
+	smb_invalidate_dircache_entries(dentry);
+	ctl.head.time = jiffies;
+	ctl.head.eof = 0;
+	ctl.fpos = 2;
+	ctl.ofs = 0;
+	ctl.idx = SMB_DIRCACHE_START;
+	ctl.filled = 0;
+	ctl.valid  = 1;
+read_really:
+	result = server->ops->readdir(filp, dirent, filldir, &ctl);
+	if (ctl.idx == -1)
+		goto invalid_cache;	/* retry */
+	ctl.head.end = ctl.fpos - 1;
+	ctl.head.eof = ctl.valid;
+finished:
+	if (page) {
+		cache->head = ctl.head;
+		kunmap(page);
+		SetPageUptodate(page);
+		UnlockPage(page);
+		page_cache_release(page);
+	}
+	if (ctl.page) {
+		kunmap(ctl.page);
+		SetPageUptodate(ctl.page);
+		UnlockPage(ctl.page);
+		page_cache_release(ctl.page);
+	}
+out:
+	return result;
+}
+
+static int
+smb_dir_open(struct inode *dir, struct file *file)
+{
+	struct dentry *dentry = file->f_dentry;
+	struct smb_sb_info *server;
+	int error = 0;
+
+	VERBOSE("(%s/%s)\n", dentry->d_parent->d_name.name,
+		file->f_dentry->d_name.name);
+
+	/*
+	 * Directory timestamps in the core protocol aren't updated
+	 * when a file is added, so we give them a very short TTL.
+	 */
+	lock_kernel();
+	server = server_from_dentry(dentry);
+	if (server->opt.protocol < SMB_PROTOCOL_LANMAN2) {
+		unsigned long age = jiffies - dir->u.smbfs_i.oldmtime;
+		if (age > 2*HZ)
+			smb_invalid_dir_cache(dir);
+	}
+
+	/*
+	 * Note: in order to allow the smbmount process to open the
+	 * mount point, we only revalidate if the connection is valid or
+	 * if the process is trying to access something other than the root.
+	 */
+	if (server->state == CONN_VALID || !IS_ROOT(dentry))
+		error = smb_revalidate_inode(dentry);
+	unlock_kernel();
+	return error;
+}
+
+/*
+ * Dentry operations routines
+ */
+static int smb_lookup_validate(struct dentry *, int);
+static int smb_hash_dentry(struct dentry *, struct qstr *);
+static int smb_compare_dentry(struct dentry *, struct qstr *, struct qstr *);
+static int smb_delete_dentry(struct dentry *);
+
+static struct dentry_operations smbfs_dentry_operations =
+{
+	d_revalidate:	smb_lookup_validate,
+	d_hash:		smb_hash_dentry,
+	d_compare:	smb_compare_dentry,
+	d_delete:	smb_delete_dentry,
+};
+
+static struct dentry_operations smbfs_dentry_operations_case =
+{
+	d_revalidate:	smb_lookup_validate,
+	d_delete:	smb_delete_dentry,
+};
+
+
+/*
+ * This is the callback when the dcache has a lookup hit.
+ */
+static int
+smb_lookup_validate(struct dentry * dentry, int flags)
+{
+	struct smb_sb_info *server = server_from_dentry(dentry);
+	struct inode * inode = dentry->d_inode;
+	unsigned long age = jiffies - dentry->d_time;
+	int valid;
+
+	/*
+	 * The default validation is based on dentry age:
+	 * we believe in dentries for a few seconds.  (But each
+	 * successful server lookup renews the timestamp.)
+	 */
+	valid = (age <= SMB_MAX_AGE(server));
+#ifdef SMBFS_DEBUG_VERBOSE
+	if (!valid)
+		VERBOSE("%s/%s not valid, age=%lu\n", 
+			DENTRY_PATH(dentry), age);
+#endif
+
+	if (inode) {
+		lock_kernel();
+		if (is_bad_inode(inode)) {
+			PARANOIA("%s/%s has dud inode\n", DENTRY_PATH(dentry));
+			valid = 0;
+		} else if (!valid)
+			valid = (smb_revalidate_inode(dentry) == 0);
+		unlock_kernel();
+	} else {
+		/*
+		 * What should we do for negative dentries?
+		 */
+	}
+	return valid;
+}
+
+static int 
+smb_hash_dentry(struct dentry *dir, struct qstr *this)
+{
+	unsigned long hash;
+	int i;
+
+	hash = init_name_hash();
+	for (i=0; i < this->len ; i++)
+		hash = partial_name_hash(tolower(this->name[i]), hash);
+	this->hash = end_name_hash(hash);
+  
+	return 0;
+}
+
+static int
+smb_compare_dentry(struct dentry *dir, struct qstr *a, struct qstr *b)
+{
+	int i, result = 1;
+
+	if (a->len != b->len)
+		goto out;
+	for (i=0; i < a->len; i++) {
+		if (tolower(a->name[i]) != tolower(b->name[i]))
+			goto out;
+	}
+	result = 0;
+out:
+	return result;
+}
+
+/*
+ * This is the callback from dput() when d_count is going to 0.
+ * We use this to unhash dentries with bad inodes.
+ */
+static int
+smb_delete_dentry(struct dentry * dentry)
+{
+	if (dentry->d_inode) {
+		if (is_bad_inode(dentry->d_inode)) {
+			PARANOIA("bad inode, unhashing %s/%s\n",
+				 DENTRY_PATH(dentry));
+			return 1;
+		}
+	} else {
+		/* N.B. Unhash negative dentries? */
+	}
+	return 0;
+}
+
+/*
+ * Initialize a new dentry
+ */
+void
+smb_new_dentry(struct dentry *dentry)
+{
+	struct smb_sb_info *server = server_from_dentry(dentry);
+
+	if (server->mnt->flags & SMB_MOUNT_CASE)
+		dentry->d_op = &smbfs_dentry_operations_case;
+	else
+		dentry->d_op = &smbfs_dentry_operations;
+	dentry->d_time = jiffies;
+}
+
+
+/*
+ * Whenever a lookup succeeds, we know the parent directories
+ * are all valid, so we want to update the dentry timestamps.
+ * N.B. Move this to dcache?
+ */
+void
+smb_renew_times(struct dentry * dentry)
+{
+	for (;;) {
+		dentry->d_time = jiffies;
+		if (IS_ROOT(dentry))
+			break;
+		dentry = dentry->d_parent;
+	}
+}
+
+static struct dentry *
+smb_lookup(struct inode *dir, struct dentry *dentry)
+{
+	struct smb_fattr finfo;
+	struct inode *inode;
+	int error;
+	struct smb_sb_info *server;
+
+	error = -ENAMETOOLONG;
+	if (dentry->d_name.len > SMB_MAXNAMELEN)
+		goto out;
+
+	error = smb_proc_getattr(dentry, &finfo);
+#ifdef SMBFS_PARANOIA
+	if (error && error != -ENOENT)
+		PARANOIA("find %s/%s failed, error=%d\n",
+			 DENTRY_PATH(dentry), error);
+#endif
+
+	inode = NULL;
+	if (error == -ENOENT)
+		goto add_entry;
+	if (!error) {
+		error = -EACCES;
+		finfo.f_ino = iunique(dentry->d_sb, 2);
+		inode = smb_iget(dir->i_sb, &finfo);
+		if (inode) {
+	add_entry:
+			server = server_from_dentry(dentry);
+			if (server->mnt->flags & SMB_MOUNT_CASE)
+				dentry->d_op = &smbfs_dentry_operations_case;
+			else
+				dentry->d_op = &smbfs_dentry_operations;
+
+			d_add(dentry, inode);
+			smb_renew_times(dentry);
+			error = 0;
+		}
+	}
+out:
+	return ERR_PTR(error);
+}
+
+/*
+ * This code is common to all routines creating a new inode.
+ */
+static int
+smb_instantiate(struct dentry *dentry, __u16 fileid, int have_id)
+{
+	struct smb_sb_info *server = server_from_dentry(dentry);
+	struct inode *inode;
+	int error;
+	struct smb_fattr fattr;
+
+	VERBOSE("file %s/%s, fileid=%u\n", DENTRY_PATH(dentry), fileid);
+
+	error = smb_proc_getattr(dentry, &fattr);
+	if (error)
+		goto out_close;
+
+	smb_renew_times(dentry);
+	fattr.f_ino = iunique(dentry->d_sb, 2);
+	inode = smb_iget(dentry->d_sb, &fattr);
+	if (!inode)
+		goto out_no_inode;
+
+	if (have_id) {
+		inode->u.smbfs_i.fileid = fileid;
+		inode->u.smbfs_i.access = SMB_O_RDWR;
+		inode->u.smbfs_i.open = server->generation;
+	}
+	d_instantiate(dentry, inode);
+out:
+	return error;
+
+out_no_inode:
+	error = -EACCES;
+out_close:
+	if (have_id) {
+		PARANOIA("%s/%s failed, error=%d, closing %u\n",
+			 DENTRY_PATH(dentry), error, fileid);
+		smb_close_fileid(dentry, fileid);
+	}
+	goto out;
+}
+
+/* N.B. How should the mode argument be used? */
+static int
+smb_create(struct inode *dir, struct dentry *dentry, int mode)
+{
+	struct smb_sb_info *server = server_from_dentry(dentry);
+	__u16 fileid;
+	int error;
+	struct iattr attr;
+
+	VERBOSE("creating %s/%s, mode=%d\n", DENTRY_PATH(dentry), mode);
+
+	smb_invalid_dir_cache(dir);
+	error = smb_proc_create(dentry, 0, CURRENT_TIME, &fileid);
+	if (!error) {
+		if (server->opt.capabilities & SMB_CAP_UNIX) {
+			/* Set attributes for new file */
+			attr.ia_valid = ATTR_MODE;
+			attr.ia_mode = mode;
+			error = smb_proc_setattr_unix(dentry, &attr, 0, 0);
+		}
+		error = smb_instantiate(dentry, fileid, 1);
+	} else {
+		PARANOIA("%s/%s failed, error=%d\n",
+			 DENTRY_PATH(dentry), error);
+	}
+	return error;
+}
+
+/* N.B. How should the mode argument be used? */
+static int
+smb_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+{
+	struct smb_sb_info *server = server_from_dentry(dentry);
+	int error;
+	struct iattr attr;
+
+	smb_invalid_dir_cache(dir);
+	error = smb_proc_mkdir(dentry);
+	if (!error) {
+		if (server->opt.capabilities & SMB_CAP_UNIX) {
+			/* Set attributes for new directory */
+			attr.ia_valid = ATTR_MODE;
+			attr.ia_mode = mode;
+			error = smb_proc_setattr_unix(dentry, &attr, 0, 0);
+		}
+		error = smb_instantiate(dentry, 0, 0);
+	}
+	return error;
+}
+
+static int
+smb_rmdir(struct inode *dir, struct dentry *dentry)
+{
+	struct inode *inode = dentry->d_inode;
+	int error;
+
+	/*
+	 * Close the directory if it's open.
+	 */
+	smb_close(inode);
+
+	/*
+	 * Check that nobody else is using the directory..
+	 */
+	error = -EBUSY;
+	if (!d_unhashed(dentry))
+		goto out;
+
+	smb_invalid_dir_cache(dir);
+	error = smb_proc_rmdir(dentry);
+
+out:
+	return error;
+}
+
+static int
+smb_unlink(struct inode *dir, struct dentry *dentry)
+{
+	int error;
+
+	/*
+	 * Close the file if it's open.
+	 */
+	smb_close(dentry->d_inode);
+
+	smb_invalid_dir_cache(dir);
+	error = smb_proc_unlink(dentry);
+	if (!error)
+		smb_renew_times(dentry);
+	return error;
+}
+
+static int
+smb_rename(struct inode *old_dir, struct dentry *old_dentry,
+	   struct inode *new_dir, struct dentry *new_dentry)
+{
+	int error;
+
+	/*
+	 * Close any open files, and check whether to delete the
+	 * target before attempting the rename.
+	 */
+	if (old_dentry->d_inode)
+		smb_close(old_dentry->d_inode);
+	if (new_dentry->d_inode) {
+		smb_close(new_dentry->d_inode);
+		error = smb_proc_unlink(new_dentry);
+		if (error) {
+			VERBOSE("unlink %s/%s, error=%d\n",
+				DENTRY_PATH(new_dentry), error);
+			goto out;
+		}
+		/* FIXME */
+		d_delete(new_dentry);
+	}
+
+	smb_invalid_dir_cache(old_dir);
+	smb_invalid_dir_cache(new_dir);
+	error = smb_proc_mv(old_dentry, new_dentry);
+	if (!error) {
+		smb_renew_times(old_dentry);
+		smb_renew_times(new_dentry);
+	}
+out:
+	return error;
+}
+
+/*
+ * FIXME: samba servers won't let you create device nodes unless uid/gid
+ * matches the connection credentials (and we don't know which those are ...)
+ */
+static int
+smb_make_node(struct inode *dir, struct dentry *dentry, int mode, int dev)
+{
+	int error;
+	struct iattr attr;
+
+	attr.ia_valid = ATTR_MODE | ATTR_UID | ATTR_GID;
+	attr.ia_mode = mode;
+	attr.ia_uid = current->euid;
+	attr.ia_gid = current->egid;
+
+	smb_invalid_dir_cache(dir);
+	error = smb_proc_setattr_unix(dentry, &attr, MAJOR(dev), MINOR(dev));
+	if (!error) {
+		error = smb_instantiate(dentry, 0, 0);
+	}
+	return error;
+}
+
+/*
+ * dentry = existing file
+ * new_dentry = new file
+ */
+static int
+smb_link(struct dentry *dentry, struct inode *dir, struct dentry *new_dentry)
+{
+	int error;
+
+	DEBUG1("smb_link old=%s/%s new=%s/%s\n",
+	       DENTRY_PATH(dentry), DENTRY_PATH(new_dentry));
+	smb_invalid_dir_cache(dir);
+	error = smb_proc_link(server_from_dentry(dentry), dentry, new_dentry);
+	if (!error) {
+		smb_renew_times(dentry);
+		error = smb_instantiate(new_dentry, 0, 0);
+	}
+	return error;
+}
diff --git a/fs/smbfs/file.c b/fs/smbfs/file.c
new file mode 100644
index 00000000000000..8ae5ea8c948b7a
--- /dev/null
+++ b/fs/smbfs/file.c
@@ -0,0 +1,402 @@
+/*
+ *  file.c
+ *
+ *  Copyright (C) 1995, 1996, 1997 by Paal-Kr. Engstad and Volker Lendecke
+ *  Copyright (C) 1997 by Volker Lendecke
+ *
+ *  Please add a note about your changes to smbfs in the ChangeLog file.
+ */
+
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/fcntl.h>
+#include <linux/stat.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/pagemap.h>
+#include <linux/smp_lock.h>
+
+#include <asm/uaccess.h>
+#include <asm/system.h>
+
+#include <linux/smbno.h>
+#include <linux/smb_fs.h>
+
+#include "smb_debug.h"
+#include "proto.h"
+
+static int
+smb_fsync(struct file *file, struct dentry * dentry, int datasync)
+{
+	struct smb_sb_info *server = server_from_dentry(dentry);
+	int result;
+
+	VERBOSE("sync file %s/%s\n", DENTRY_PATH(dentry));
+
+	/*
+	 * The VFS will writepage() all dirty pages for us, but we
+	 * should send a SMBflush to the server, letting it know that
+	 * we want things synchronized with actual storage.
+	 *
+	 * Note: this function requires all pages to have been written already
+	 *       (should be ok with writepage_sync)
+	 */
+	smb_lock_server(server);
+	result = smb_proc_flush(server, dentry->d_inode->u.smbfs_i.fileid);
+	smb_unlock_server(server);
+	return result;
+}
+
+/*
+ * Read a page synchronously.
+ */
+static int
+smb_readpage_sync(struct dentry *dentry, struct page *page)
+{
+	char *buffer = kmap(page);
+	loff_t offset = (loff_t)page->index << PAGE_CACHE_SHIFT;
+	struct smb_sb_info *server = server_from_dentry(dentry);
+	unsigned int rsize = smb_get_rsize(server);
+	int count = PAGE_SIZE;
+	int result;
+
+	VERBOSE("file %s/%s, count=%d@%ld, rsize=%d\n",
+		DENTRY_PATH(dentry), count, offset, rsize);
+
+	result = smb_open(dentry, SMB_O_RDONLY);
+	if (result < 0) {
+		PARANOIA("%s/%s open failed, error=%d\n",
+			 DENTRY_PATH(dentry), result);
+		goto io_error;
+	}
+
+	do {
+		if (count < rsize)
+			rsize = count;
+
+		result = server->ops->read(dentry->d_inode,offset,rsize,buffer);
+		if (result < 0)
+			goto io_error;
+
+		count -= result;
+		offset += result;
+		buffer += result;
+		dentry->d_inode->i_atime = CURRENT_TIME;
+		if (result < rsize)
+			break;
+	} while (count);
+
+	memset(buffer, 0, count);
+	flush_dcache_page(page);
+	SetPageUptodate(page);
+	result = 0;
+
+io_error:
+	kunmap(page);
+	UnlockPage(page);
+	return result;
+}
+
+/*
+ * We are called with the page locked and we unlock it when done.
+ */
+static int
+smb_readpage(struct file *file, struct page *page)
+{
+	int		error;
+	struct dentry  *dentry = file->f_dentry;
+
+	get_page(page);
+	error = smb_readpage_sync(dentry, page);
+	put_page(page);
+	return error;
+}
+
+/*
+ * Write a page synchronously.
+ * Offset is the data offset within the page.
+ */
+static int
+smb_writepage_sync(struct inode *inode, struct page *page,
+		   unsigned long pageoffset, unsigned int count)
+{
+	loff_t offset;
+	char *buffer = kmap(page) + pageoffset;
+	struct smb_sb_info *server = server_from_inode(inode);
+	unsigned int wsize = smb_get_wsize(server);
+	int result, written = 0;
+
+	offset = ((loff_t)page->index << PAGE_CACHE_SHIFT) + pageoffset;
+	VERBOSE("file ino=%ld, fileid=%d, count=%d@%Ld, wsize=%d\n",
+		inode->i_ino, inode->u.smbfs_i.fileid, count, offset, wsize);
+
+	do {
+		if (count < wsize)
+			wsize = count;
+
+		result = server->ops->write(inode, offset, wsize, buffer);
+		if (result < 0) {
+			PARANOIA("failed write, wsize=%d, result=%d\n",
+				 wsize, result);
+			break;
+		}
+		/* N.B. what if result < wsize?? */
+#ifdef SMBFS_PARANOIA
+		if (result < wsize)
+			PARANOIA("short write, wsize=%d, result=%d\n",
+				 wsize, result);
+#endif
+		buffer += wsize;
+		offset += wsize;
+		written += wsize;
+		count -= wsize;
+		/*
+		 * Update the inode now rather than waiting for a refresh.
+		 */
+		inode->i_mtime = inode->i_atime = CURRENT_TIME;
+		inode->u.smbfs_i.flags |= SMB_F_LOCALWRITE;
+		if (offset > inode->i_size)
+			inode->i_size = offset;
+	} while (count);
+
+	kunmap(page);
+	return written ? written : result;
+}
+
+/*
+ * Write a page to the server. This will be used for NFS swapping only
+ * (for now), and we currently do this synchronously only.
+ *
+ * We are called with the page locked and we unlock it when done.
+ */
+static int
+smb_writepage(struct page *page)
+{
+	struct address_space *mapping = page->mapping;
+	struct inode *inode;
+	unsigned long end_index;
+	unsigned offset = PAGE_CACHE_SIZE;
+	int err;
+
+	if (!mapping)
+		BUG();
+	inode = mapping->host;
+	if (!inode)
+		BUG();
+
+	end_index = inode->i_size >> PAGE_CACHE_SHIFT;
+
+	/* easy case */
+	if (page->index < end_index)
+		goto do_it;
+	/* things got complicated... */
+	offset = inode->i_size & (PAGE_CACHE_SIZE-1);
+	/* OK, are we completely out? */
+	if (page->index >= end_index+1 || !offset)
+		return -EIO;
+do_it:
+	get_page(page);
+	err = smb_writepage_sync(inode, page, 0, offset);
+	SetPageUptodate(page);
+	UnlockPage(page);
+	put_page(page);
+	return err;
+}
+
+static int
+smb_updatepage(struct file *file, struct page *page, unsigned long offset,
+	       unsigned int count)
+{
+	struct dentry *dentry = file->f_dentry;
+
+	DEBUG1("(%s/%s %d@%ld)\n", DENTRY_PATH(dentry), 
+	       count, (page->index << PAGE_CACHE_SHIFT)+offset);
+
+	return smb_writepage_sync(dentry->d_inode, page, offset, count);
+}
+
+static ssize_t
+smb_file_read(struct file * file, char * buf, size_t count, loff_t *ppos)
+{
+	struct dentry * dentry = file->f_dentry;
+	ssize_t	status;
+
+	VERBOSE("file %s/%s, count=%lu@%lu\n", DENTRY_PATH(dentry),
+		(unsigned long) count, (unsigned long) *ppos);
+
+	status = smb_revalidate_inode(dentry);
+	if (status) {
+		PARANOIA("%s/%s validation failed, error=%Zd\n",
+			 DENTRY_PATH(dentry), status);
+		goto out;
+	}
+
+	VERBOSE("before read, size=%ld, flags=%x, atime=%ld\n",
+		(long)dentry->d_inode->i_size,
+		dentry->d_inode->i_flags, dentry->d_inode->i_atime);
+
+	status = generic_file_read(file, buf, count, ppos);
+out:
+	return status;
+}
+
+static int
+smb_file_mmap(struct file * file, struct vm_area_struct * vma)
+{
+	struct dentry * dentry = file->f_dentry;
+	int	status;
+
+	VERBOSE("file %s/%s, address %lu - %lu\n",
+		DENTRY_PATH(dentry), vma->vm_start, vma->vm_end);
+
+	status = smb_revalidate_inode(dentry);
+	if (status) {
+		PARANOIA("%s/%s validation failed, error=%d\n",
+			 DENTRY_PATH(dentry), status);
+		goto out;
+	}
+	status = generic_file_mmap(file, vma);
+out:
+	return status;
+}
+
+/*
+ * This does the "real" work of the write. The generic routine has
+ * allocated the page, locked it, done all the page alignment stuff
+ * calculations etc. Now we should just copy the data from user
+ * space and write it back to the real medium..
+ *
+ * If the writer ends up delaying the write, the writer needs to
+ * increment the page use counts until he is done with the page.
+ */
+static int smb_prepare_write(struct file *file, struct page *page, 
+			     unsigned offset, unsigned to)
+{
+	return 0;
+}
+
+static int smb_commit_write(struct file *file, struct page *page,
+			    unsigned offset, unsigned to)
+{
+	int status;
+
+	status = -EFAULT;
+	lock_kernel();
+	status = smb_updatepage(file, page, offset, to-offset);
+	unlock_kernel();
+	return status;
+}
+
+struct address_space_operations smb_file_aops = {
+	readpage: smb_readpage,
+	writepage: smb_writepage,
+	prepare_write: smb_prepare_write,
+	commit_write: smb_commit_write
+};
+
+/* 
+ * Write to a file (through the page cache).
+ */
+static ssize_t
+smb_file_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
+{
+	struct dentry * dentry = file->f_dentry;
+	ssize_t	result;
+
+	VERBOSE("file %s/%s, count=%lu@%lu\n",
+		DENTRY_PATH(dentry),
+		(unsigned long) count, (unsigned long) *ppos);
+
+	result = smb_revalidate_inode(dentry);
+	if (result) {
+		PARANOIA("%s/%s validation failed, error=%Zd\n",
+			 DENTRY_PATH(dentry), result);
+		goto out;
+	}
+
+	result = smb_open(dentry, SMB_O_WRONLY);
+	if (result)
+		goto out;
+
+	if (count > 0) {
+		result = generic_file_write(file, buf, count, ppos);
+		VERBOSE("pos=%ld, size=%ld, mtime=%ld, atime=%ld\n",
+			(long) file->f_pos, (long) dentry->d_inode->i_size,
+			dentry->d_inode->i_mtime, dentry->d_inode->i_atime);
+	}
+out:
+	return result;
+}
+
+static int
+smb_file_open(struct inode *inode, struct file * file)
+{
+	int result;
+	struct dentry *dentry = file->f_dentry;
+	int smb_mode = (file->f_mode & O_ACCMODE) - 1;
+
+	lock_kernel();
+	result = smb_open(dentry, smb_mode);
+	if (result)
+		goto out;
+	inode->u.smbfs_i.openers++;
+out:
+	unlock_kernel();
+	return 0;
+}
+
+static int
+smb_file_release(struct inode *inode, struct file * file)
+{
+	lock_kernel();
+	if (!--inode->u.smbfs_i.openers) {
+		/* We must flush any dirty pages now as we won't be able to
+		   write anything after close. mmap can trigger this.
+		   "openers" should perhaps include mmap'ers ... */
+		filemap_fdatasync(inode->i_mapping);
+		filemap_fdatawait(inode->i_mapping);
+		smb_close(inode);
+	}
+	unlock_kernel();
+	return 0;
+}
+
+/*
+ * Check whether the required access is compatible with
+ * an inode's permission. SMB doesn't recognize superuser
+ * privileges, so we need our own check for this.
+ */
+static int
+smb_file_permission(struct inode *inode, int mask)
+{
+	int mode = inode->i_mode;
+	int error = 0;
+
+	VERBOSE("mode=%x, mask=%x\n", mode, mask);
+
+	/* Look at user permissions */
+	mode >>= 6;
+	if ((mode & 7 & mask) != mask)
+		error = -EACCES;
+	return error;
+}
+
+struct file_operations smb_file_operations =
+{
+	llseek:		generic_file_llseek,
+	read:		smb_file_read,
+	write:		smb_file_write,
+	ioctl:		smb_ioctl,
+	mmap:		smb_file_mmap,
+	open:		smb_file_open,
+	release:	smb_file_release,
+	fsync:		smb_fsync,
+};
+
+struct inode_operations smb_file_inode_operations =
+{
+	permission:	smb_file_permission,
+	revalidate:	smb_revalidate_inode,
+	setattr:	smb_notify_change,
+};
diff --git a/fs/smbfs/getopt.c b/fs/smbfs/getopt.c
new file mode 100644
index 00000000000000..626543fb8ac6ee
--- /dev/null
+++ b/fs/smbfs/getopt.c
@@ -0,0 +1,63 @@
+/*
+ * getopt.c
+ */
+
+#include <linux/kernel.h>
+#include <linux/string.h>
+
+#include "getopt.h"
+
+/**
+ *	smb_getopt - option parser
+ *	@caller: name of the caller, for error messages
+ *	@options: the options string
+ *	@opts: an array of &struct option entries controlling parser operations
+ *	@optopt: output; will contain the current option
+ *	@optarg: output; will contain the value (if one exists)
+ *	@flag: output; may be NULL; should point to a long for or'ing flags
+ *	@value: output; may be NULL; will be overwritten with the integer value
+ *		of the current argument.
+ *
+ *	Helper to parse options on the format used by mount ("a=b,c=d,e,f").
+ *	Returns opts->val if a matching entry in the 'opts' array is found,
+ *	0 when no more tokens are found, -1 if an error is encountered.
+ */
+int smb_getopt(char *caller, char **options, struct option *opts,
+	       char **optopt, char **optarg, unsigned long *flag,
+	       unsigned long *value)
+{
+	char *token;
+	char *val;
+	int i;
+
+	do {
+		if ((token = strsep(options, ",")) == NULL)
+			return 0;
+	} while (*token == '\0');
+	*optopt = token;
+
+	*optarg = NULL;
+	if ((val = strchr (token, '=')) != NULL) {
+		*val++ = 0;
+		if (value)
+			*value = simple_strtoul(val, NULL, 0);
+		*optarg = val;
+	}
+
+	for (i = 0; opts[i].name != NULL; i++) {
+		if (!strcmp(opts[i].name, token)) {
+			if (!opts[i].flag && (!val || !*val)) {
+				printk("%s: the %s option requires an argument\n",
+				       caller, token);
+				return -1;
+			}
+
+			if (flag && opts[i].flag)
+				*flag |= opts[i].flag;
+
+			return opts[i].val;
+		}
+	}
+	printk("%s: Unrecognized mount option %s\n", caller, token);
+	return -1;
+}
diff --git a/fs/smbfs/getopt.h b/fs/smbfs/getopt.h
new file mode 100644
index 00000000000000..146219ac7c46cb
--- /dev/null
+++ b/fs/smbfs/getopt.h
@@ -0,0 +1,14 @@
+#ifndef _LINUX_GETOPT_H
+#define _LINUX_GETOPT_H
+
+struct option {
+	const char *name;
+	unsigned long flag;
+	int val;
+};
+
+extern int smb_getopt(char *caller, char **options, struct option *opts,
+		      char **optopt, char **optarg, unsigned long *flag,
+		      unsigned long *value);
+
+#endif /* _LINUX_GETOPT_H */
diff --git a/fs/smbfs/inode.c b/fs/smbfs/inode.c
new file mode 100644
index 00000000000000..3f218228f0ae54
--- /dev/null
+++ b/fs/smbfs/inode.c
@@ -0,0 +1,722 @@
+/*
+ *  inode.c
+ *
+ *  Copyright (C) 1995, 1996 by Paal-Kr. Engstad and Volker Lendecke
+ *  Copyright (C) 1997 by Volker Lendecke
+ *
+ *  Please add a note about your changes to smbfs in the ChangeLog file.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/string.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/file.h>
+#include <linux/dcache.h>
+#include <linux/smp_lock.h>
+#include <linux/nls.h>
+#include <linux/seq_file.h>
+
+#include <linux/smb_fs.h>
+#include <linux/smbno.h>
+#include <linux/smb_mount.h>
+
+#include <asm/system.h>
+#include <asm/uaccess.h>
+
+#include "smb_debug.h"
+#include "getopt.h"
+#include "proto.h"
+
+/* Always pick a default string */
+#ifdef CONFIG_SMB_NLS_REMOTE
+#define SMB_NLS_REMOTE CONFIG_SMB_NLS_REMOTE
+#else
+#define SMB_NLS_REMOTE ""
+#endif
+
+#define SMB_TTL_DEFAULT 1000
+#define SMB_TIMEO_DEFAULT 30
+
+static void smb_delete_inode(struct inode *);
+static void smb_put_super(struct super_block *);
+static int  smb_statfs(struct super_block *, struct statfs *);
+static int  smb_show_options(struct seq_file *, struct vfsmount *);
+
+static struct super_operations smb_sops =
+{
+	put_inode:	force_delete,
+	delete_inode:	smb_delete_inode,
+	put_super:	smb_put_super,
+	statfs:		smb_statfs,
+	show_options:	smb_show_options,
+};
+
+
+/* We are always generating a new inode here */
+struct inode *
+smb_iget(struct super_block *sb, struct smb_fattr *fattr)
+{
+	struct inode *result;
+
+	DEBUG1("smb_iget: %p\n", fattr);
+
+	result = new_inode(sb);
+	if (!result)
+		return result;
+	result->i_ino = fattr->f_ino;
+	memset(&(result->u.smbfs_i), 0, sizeof(result->u.smbfs_i));
+	smb_set_inode_attr(result, fattr);
+	if (S_ISREG(result->i_mode)) {
+		result->i_op = &smb_file_inode_operations;
+		result->i_fop = &smb_file_operations;
+		result->i_data.a_ops = &smb_file_aops;
+	} else if (S_ISDIR(result->i_mode)) {
+		struct smb_sb_info *server = &(sb->u.smbfs_sb);
+		if (server->opt.capabilities & SMB_CAP_UNIX)
+			result->i_op = &smb_dir_inode_operations_unix;
+		else
+			result->i_op = &smb_dir_inode_operations;
+		result->i_fop = &smb_dir_operations;
+	} else if(S_ISLNK(result->i_mode)) {
+		result->i_op = &smb_link_inode_operations;
+	} else {
+		init_special_inode(result, result->i_mode, fattr->f_rdev);
+	}
+	insert_inode_hash(result);
+	return result;
+}
+
+/*
+ * Copy the inode data to a smb_fattr structure.
+ */
+void
+smb_get_inode_attr(struct inode *inode, struct smb_fattr *fattr)
+{
+	memset(fattr, 0, sizeof(struct smb_fattr));
+	fattr->f_mode	= inode->i_mode;
+	fattr->f_nlink	= inode->i_nlink;
+	fattr->f_ino	= inode->i_ino;
+	fattr->f_uid	= inode->i_uid;
+	fattr->f_gid	= inode->i_gid;
+	fattr->f_rdev	= inode->i_rdev;
+	fattr->f_size	= inode->i_size;
+	fattr->f_mtime	= inode->i_mtime;
+	fattr->f_ctime	= inode->i_ctime;
+	fattr->f_atime	= inode->i_atime;
+	fattr->f_blksize= inode->i_blksize;
+	fattr->f_blocks	= inode->i_blocks;
+
+	fattr->attr	= inode->u.smbfs_i.attr;
+	/*
+	 * Keep the attributes in sync with the inode permissions.
+	 */
+	if (fattr->f_mode & S_IWUSR)
+		fattr->attr &= ~aRONLY;
+	else
+		fattr->attr |= aRONLY;
+}
+
+/*
+ * Update the inode, possibly causing it to invalidate its pages if mtime/size
+ * is different from last time.
+ */
+void
+smb_set_inode_attr(struct inode *inode, struct smb_fattr *fattr)
+{
+	/*
+	 * A size change should have a different mtime, or same mtime
+	 * but different size.
+	 */
+	time_t last_time = inode->i_mtime;
+	loff_t last_sz = inode->i_size;
+
+	inode->i_mode	= fattr->f_mode;
+	inode->i_nlink	= fattr->f_nlink;
+	inode->i_uid	= fattr->f_uid;
+	inode->i_gid	= fattr->f_gid;
+	inode->i_rdev	= fattr->f_rdev;
+	inode->i_ctime	= fattr->f_ctime;
+	inode->i_blksize= fattr->f_blksize;
+	inode->i_blocks = fattr->f_blocks;
+	inode->i_size	= fattr->f_size;
+	inode->i_mtime	= fattr->f_mtime;
+	inode->i_atime	= fattr->f_atime;
+	inode->u.smbfs_i.attr = fattr->attr;
+	/*
+	 * Update the "last time refreshed" field for revalidation.
+	 */
+	inode->u.smbfs_i.oldmtime = jiffies;
+
+	if (inode->i_mtime != last_time || inode->i_size != last_sz) {
+		VERBOSE("%ld changed, old=%ld, new=%ld, oz=%ld, nz=%ld\n",
+			inode->i_ino,
+			(long) last_time, (long) inode->i_mtime,
+			(long) last_sz, (long) inode->i_size);
+
+		if (!S_ISDIR(inode->i_mode))
+			invalidate_inode_pages(inode);
+	}
+}
+
+/*
+ * This is called if the connection has gone bad ...
+ * try to kill off all the current inodes.
+ */
+void
+smb_invalidate_inodes(struct smb_sb_info *server)
+{
+	VERBOSE("\n");
+	shrink_dcache_sb(SB_of(server));
+	invalidate_inodes(SB_of(server));
+}
+
+/*
+ * This is called to update the inode attributes after
+ * we've made changes to a file or directory.
+ */
+static int
+smb_refresh_inode(struct dentry *dentry)
+{
+	struct inode *inode = dentry->d_inode;
+	int error;
+	struct smb_fattr fattr;
+
+	error = smb_proc_getattr(dentry, &fattr);
+	if (!error) {
+		smb_renew_times(dentry);
+		/*
+		 * Check whether the type part of the mode changed,
+		 * and don't update the attributes if it did.
+		 *
+		 * And don't dick with the root inode
+		 */
+		if (inode->i_ino == 2)
+			return error;
+		if (S_ISLNK(inode->i_mode))
+			return error;	/* VFS will deal with it */
+
+		if ((inode->i_mode & S_IFMT) == (fattr.f_mode & S_IFMT)) {
+			smb_set_inode_attr(inode, &fattr);
+		} else {
+			/*
+			 * Big trouble! The inode has become a new object,
+			 * so any operations attempted on it are invalid.
+			 *
+			 * To limit damage, mark the inode as bad so that
+			 * subsequent lookup validations will fail.
+			 */
+			PARANOIA("%s/%s changed mode, %07o to %07o\n",
+				 DENTRY_PATH(dentry),
+				 inode->i_mode, fattr.f_mode);
+
+			fattr.f_mode = inode->i_mode; /* save mode */
+			make_bad_inode(inode);
+			inode->i_mode = fattr.f_mode; /* restore mode */
+			/*
+			 * No need to worry about unhashing the dentry: the
+			 * lookup validation will see that the inode is bad.
+			 * But we do want to invalidate the caches ...
+			 */
+			if (!S_ISDIR(inode->i_mode))
+				invalidate_inode_pages(inode);
+			else
+				smb_invalid_dir_cache(inode);
+			error = -EIO;
+		}
+	}
+	return error;
+}
+
+/*
+ * This is called when we want to check whether the inode
+ * has changed on the server.  If it has changed, we must
+ * invalidate our local caches.
+ */
+int
+smb_revalidate_inode(struct dentry *dentry)
+{
+	struct smb_sb_info *s = server_from_dentry(dentry);
+	struct inode *inode = dentry->d_inode;
+	int error = 0;
+
+	DEBUG1("smb_revalidate_inode\n");
+	lock_kernel();
+
+	/*
+	 * Check whether we've recently refreshed the inode.
+	 */
+	if (time_before(jiffies, inode->u.smbfs_i.oldmtime + SMB_MAX_AGE(s))) {
+		VERBOSE("up-to-date, ino=%ld, jiffies=%lu, oldtime=%lu\n",
+			inode->i_ino, jiffies, inode->u.smbfs_i.oldmtime);
+		goto out;
+	}
+
+	error = smb_refresh_inode(dentry);
+out:
+	unlock_kernel();
+	return error;
+}
+
+/*
+ * This routine is called when i_nlink == 0 and i_count goes to 0.
+ * All blocking cleanup operations need to go here to avoid races.
+ */
+static void
+smb_delete_inode(struct inode *ino)
+{
+	DEBUG1("ino=%ld\n", ino->i_ino);
+	lock_kernel();
+	if (smb_close(ino))
+		PARANOIA("could not close inode %ld\n", ino->i_ino);
+	unlock_kernel();
+	clear_inode(ino);
+}
+
+static struct option opts[] = {
+	{ "version",	0, 'v' },
+	{ "win95",	SMB_MOUNT_WIN95, 1 },
+	{ "oldattr",	SMB_MOUNT_OLDATTR, 1 },
+	{ "dirattr",	SMB_MOUNT_DIRATTR, 1 },
+	{ "case",	SMB_MOUNT_CASE, 1 },
+	{ "uid",	0, 'u' },
+	{ "gid",	0, 'g' },
+	{ "file_mode",	0, 'f' },
+	{ "dir_mode",	0, 'd' },
+	{ "iocharset",	0, 'i' },
+	{ "codepage",	0, 'c' },
+	{ "ttl",	0, 't' },
+	{ "timeo",	0, 'o' },
+	{ NULL,		0, 0}
+};
+
+static int
+parse_options(struct smb_mount_data_kernel *mnt, char *options)
+{
+	int c;
+	unsigned long flags;
+	unsigned long value;
+	char *optarg;
+	char *optopt;
+
+	flags = 0;
+	while ( (c = smb_getopt("smbfs", &options, opts,
+				&optopt, &optarg, &flags, &value)) > 0) {
+
+		VERBOSE("'%s' -> '%s'\n", optopt, optarg ? optarg : "<none>");
+
+		switch (c) {
+		case 1:
+			/* got a "flag" option */
+			break;
+		case 'v':
+			if (value != SMB_MOUNT_VERSION) {
+			printk ("smbfs: Bad mount version %ld, expected %d\n",
+				value, SMB_MOUNT_VERSION);
+				return 0;
+			}
+			mnt->version = value;
+			break;
+		case 'u':
+			mnt->uid = value;
+			break;
+		case 'g':
+			mnt->gid = value;
+			break;
+		case 'f':
+			mnt->file_mode = (value & S_IRWXUGO) | S_IFREG;
+			break;
+		case 'd':
+			mnt->dir_mode = (value & S_IRWXUGO) | S_IFDIR;
+			break;
+		case 'i':
+			strncpy(mnt->codepage.local_name, optarg, 
+				SMB_NLS_MAXNAMELEN);
+			break;
+		case 'c':
+			strncpy(mnt->codepage.remote_name, optarg,
+				SMB_NLS_MAXNAMELEN);
+			break;
+		case 't':
+			mnt->ttl = value;
+			break;
+		case 'o':
+			mnt->timeo = value;
+			break;
+		default:
+			printk ("smbfs: Unrecognized mount option %s\n",
+				optopt);
+			return -1;
+		}
+	}
+	mnt->flags = flags;
+	return c;
+}
+
+/*
+ * smb_show_options() is for displaying mount options in /proc/mounts.
+ * It tries to avoid showing settings that were not changed from their
+ * defaults.
+ */
+static int
+smb_show_options(struct seq_file *s, struct vfsmount *m)
+{
+	struct smb_mount_data_kernel *mnt = m->mnt_sb->u.smbfs_sb.mnt;
+	int i;
+
+	for (i = 0; opts[i].name != NULL; i++)
+		if (mnt->flags & opts[i].flag)
+			seq_printf(s, ",%s", opts[i].name);
+
+	if (mnt->uid != 0)
+		seq_printf(s, ",uid=%d", mnt->uid);
+	if (mnt->gid != 0)
+		seq_printf(s, ",gid=%d", mnt->gid);
+	if (mnt->mounted_uid != 0)
+		seq_printf(s, ",mounted_uid=%d", mnt->mounted_uid);
+
+	/* 
+	 * Defaults for file_mode and dir_mode are unknown to us; they
+	 * depend on the current umask of the user doing the mount.
+	 */
+	seq_printf(s, ",file_mode=%04o", mnt->file_mode & S_IRWXUGO);
+	seq_printf(s, ",dir_mode=%04o", mnt->dir_mode & S_IRWXUGO);
+
+	if (strcmp(mnt->codepage.local_name, CONFIG_NLS_DEFAULT))
+		seq_printf(s, ",iocharset=%s", mnt->codepage.local_name);
+	if (strcmp(mnt->codepage.remote_name, SMB_NLS_REMOTE))
+		seq_printf(s, ",codepage=%s", mnt->codepage.remote_name);
+
+	if (mnt->ttl != SMB_TTL_DEFAULT)
+		seq_printf(s, ",ttl=%d", mnt->ttl);
+	if (mnt->timeo != SMB_TIMEO_DEFAULT)
+		seq_printf(s, ",timeo=%d", mnt->timeo);
+
+	return 0;
+}
+
+static void
+smb_put_super(struct super_block *sb)
+{
+	struct smb_sb_info *server = &(sb->u.smbfs_sb);
+
+	if (server->sock_file) {
+		smb_dont_catch_keepalive(server);
+		fput(server->sock_file);
+	}
+
+	if (server->conn_pid)
+	       kill_proc(server->conn_pid, SIGTERM, 1);
+
+	smb_kfree(server->mnt);
+	smb_kfree(server->temp_buf);
+	if (server->packet)
+		smb_vfree(server->packet);
+
+	if (server->remote_nls) {
+		unload_nls(server->remote_nls);
+		server->remote_nls = NULL;
+	}
+	if (server->local_nls) {
+		unload_nls(server->local_nls);
+		server->local_nls = NULL;
+	}
+}
+
+struct super_block *
+smb_read_super(struct super_block *sb, void *raw_data, int silent)
+{
+	struct smb_sb_info *server = &sb->u.smbfs_sb;
+	struct smb_mount_data_kernel *mnt;
+	struct smb_mount_data *oldmnt;
+	struct inode *root_inode;
+	struct smb_fattr root;
+	int ver;
+	void *mem;
+
+	if (!raw_data)
+		goto out_no_data;
+
+	oldmnt = (struct smb_mount_data *) raw_data;
+	ver = oldmnt->version;
+	if (ver != SMB_MOUNT_OLDVERSION && cpu_to_be32(ver) != SMB_MOUNT_ASCII)
+		goto out_wrong_data;
+
+	sb->s_blocksize = 1024;	/* Eh...  Is this correct? */
+	sb->s_blocksize_bits = 10;
+	sb->s_maxbytes = MAX_NON_LFS;
+	sb->s_magic = SMB_SUPER_MAGIC;
+	sb->s_op = &smb_sops;
+
+	server->mnt = NULL;
+	server->sock_file = NULL;
+	init_MUTEX(&server->sem);
+	init_waitqueue_head(&server->wait);
+	server->conn_pid = 0;
+	server->state = CONN_INVALID; /* no connection yet */
+	server->generation = 0;
+	server->packet_size = smb_round_length(SMB_INITIAL_PACKET_SIZE);
+	server->packet = smb_vmalloc(server->packet_size);
+	if (!server->packet)
+		goto out_no_mem;
+
+	/* Allocate the global temp buffer */
+	server->temp_buf = smb_kmalloc(2*SMB_MAXPATHLEN+20, GFP_KERNEL);
+	if (!server->temp_buf)
+		goto out_no_temp;
+
+	/* Setup NLS stuff */
+	server->remote_nls = NULL;
+	server->local_nls = NULL;
+	server->name_buf = server->temp_buf + SMB_MAXPATHLEN + 20;
+
+	/* Allocate the mount data structure */
+	/* FIXME: merge this with the other malloc and get a whole page? */
+	mem = smb_kmalloc(sizeof(struct smb_ops) +
+			  sizeof(struct smb_mount_data_kernel), GFP_KERNEL);
+	if (!mem)
+		goto out_no_mount;
+	server->mnt = mnt = mem;
+	server->ops = mem + sizeof(struct smb_mount_data_kernel);
+	smb_install_null_ops(server->ops);
+
+	memset(mnt, 0, sizeof(struct smb_mount_data_kernel));
+	strncpy(mnt->codepage.local_name, CONFIG_NLS_DEFAULT,
+		SMB_NLS_MAXNAMELEN);
+	strncpy(mnt->codepage.remote_name, SMB_NLS_REMOTE,
+		SMB_NLS_MAXNAMELEN);
+
+	mnt->ttl = SMB_TTL_DEFAULT;
+	mnt->timeo = SMB_TIMEO_DEFAULT;
+	if (ver == SMB_MOUNT_OLDVERSION) {
+		mnt->version = oldmnt->version;
+
+		/* FIXME: is this enough to convert uid/gid's ? */
+		mnt->uid = oldmnt->uid;
+		mnt->gid = oldmnt->gid;
+
+		mnt->file_mode = (oldmnt->file_mode & S_IRWXUGO) | S_IFREG;
+		mnt->dir_mode = (oldmnt->dir_mode & S_IRWXUGO) | S_IFDIR;
+
+		mnt->flags = (oldmnt->file_mode >> 9);
+	} else {
+		if (parse_options(mnt, raw_data))
+			goto out_bad_option;
+	}
+	smb_setcodepage(server, &mnt->codepage);
+	mnt->mounted_uid = current->uid;
+
+	/*
+	 * Display the enabled options
+	 * Note: smb_proc_getattr uses these in 2.4 (but was changed in 2.2)
+	 */
+	if (mnt->flags & SMB_MOUNT_OLDATTR)
+		printk("SMBFS: Using core getattr (Win 95 speedup)\n");
+	else if (mnt->flags & SMB_MOUNT_DIRATTR)
+		printk("SMBFS: Using dir ff getattr\n");
+
+	/*
+	 * Keep the super block locked while we get the root inode.
+	 */
+	smb_init_root_dirent(server, &root);
+	root_inode = smb_iget(sb, &root);
+	if (!root_inode)
+		goto out_no_root;
+
+	sb->s_root = d_alloc_root(root_inode);
+	if (!sb->s_root)
+		goto out_no_root;
+	smb_new_dentry(sb->s_root);
+
+	return sb;
+
+out_no_root:
+	iput(root_inode);
+out_bad_option:
+	smb_kfree(server->mnt);
+out_no_mount:
+	smb_kfree(server->temp_buf);
+out_no_temp:
+	smb_vfree(server->packet);
+out_no_mem:
+	if (!server->mnt)
+		printk(KERN_ERR "smb_read_super: allocation failure\n");
+	goto out_fail;
+out_wrong_data:
+	printk(KERN_ERR "smbfs: mount_data version %d is not supported\n", ver);
+	goto out_fail;
+out_no_data:
+	printk(KERN_ERR "smb_read_super: missing data argument\n");
+out_fail:
+	return NULL;
+}
+
+static int
+smb_statfs(struct super_block *sb, struct statfs *buf)
+{
+	int result = smb_proc_dskattr(sb, buf);
+
+	buf->f_type = SMB_SUPER_MAGIC;
+	buf->f_namelen = SMB_MAXPATHLEN;
+	return result;
+}
+
+int
+smb_notify_change(struct dentry *dentry, struct iattr *attr)
+{
+	struct inode *inode = dentry->d_inode;
+	struct smb_sb_info *server = server_from_dentry(dentry);
+	unsigned int mask = (S_IFREG | S_IFDIR | S_IRWXUGO);
+	int error, changed, refresh = 0;
+	struct smb_fattr fattr;
+
+	error = smb_revalidate_inode(dentry);
+	if (error)
+		goto out;
+
+	if ((error = inode_change_ok(inode, attr)) < 0)
+		goto out;
+
+	error = -EPERM;
+	if ((attr->ia_valid & ATTR_UID) && (attr->ia_uid != server->mnt->uid))
+		goto out;
+
+	if ((attr->ia_valid & ATTR_GID) && (attr->ia_uid != server->mnt->gid))
+		goto out;
+
+	if ((attr->ia_valid & ATTR_MODE) && (attr->ia_mode & ~mask))
+		goto out;
+
+	if ((attr->ia_valid & ATTR_SIZE) != 0) {
+		VERBOSE("changing %s/%s, old size=%ld, new size=%ld\n",
+			DENTRY_PATH(dentry),
+			(long) inode->i_size, (long) attr->ia_size);
+
+		filemap_fdatasync(inode->i_mapping);
+		filemap_fdatawait(inode->i_mapping);
+
+		error = smb_open(dentry, O_WRONLY);
+		if (error)
+			goto out;
+		error = server->ops->truncate(inode, attr->ia_size);
+		if (error)
+			goto out;
+		error = vmtruncate(inode, attr->ia_size);
+		if (error)
+			goto out;
+		refresh = 1;
+	}
+
+	if (server->opt.capabilities & SMB_CAP_UNIX) {
+		/* For now we don't want to set the size with setattr_unix */
+		attr->ia_valid &= ~ATTR_SIZE;
+		/* FIXME: only call if we actually want to set something? */
+		error = smb_proc_setattr_unix(dentry, attr, 0, 0);
+		if (!error)
+			refresh = 1;
+		goto out;
+	}
+
+	/*
+	 * Initialize the fattr and check for changed fields.
+	 * Note: CTIME under SMB is creation time rather than
+	 * change time, so we don't attempt to change it.
+	 */
+	smb_get_inode_attr(inode, &fattr);
+
+	changed = 0;
+	if ((attr->ia_valid & ATTR_MTIME) != 0) {
+		fattr.f_mtime = attr->ia_mtime;
+		changed = 1;
+	}
+	if ((attr->ia_valid & ATTR_ATIME) != 0) {
+		fattr.f_atime = attr->ia_atime;
+		/* Earlier protocols don't have an access time */
+		if (server->opt.protocol >= SMB_PROTOCOL_LANMAN2)
+			changed = 1;
+	}
+	if (changed) {
+		error = smb_proc_settime(dentry, &fattr);
+		if (error)
+			goto out;
+		refresh = 1;
+	}
+
+	/*
+	 * Check for mode changes ... we're extremely limited in
+	 * what can be set for SMB servers: just the read-only bit.
+	 */
+	if ((attr->ia_valid & ATTR_MODE) != 0) {
+		VERBOSE("%s/%s mode change, old=%x, new=%x\n",
+			DENTRY_PATH(dentry), fattr.f_mode, attr->ia_mode);
+		changed = 0;
+		if (attr->ia_mode & S_IWUSR) {
+			if (fattr.attr & aRONLY) {
+				fattr.attr &= ~aRONLY;
+				changed = 1;
+			}
+		} else {
+			if (!(fattr.attr & aRONLY)) {
+				fattr.attr |= aRONLY;
+				changed = 1;
+			}
+		}
+		if (changed) {
+			error = smb_proc_setattr(dentry, &fattr);
+			if (error)
+				goto out;
+			refresh = 1;
+		}
+	}
+	error = 0;
+
+out:
+	if (refresh)
+		smb_refresh_inode(dentry);
+	return error;
+}
+
+#ifdef DEBUG_SMB_MALLOC
+int smb_malloced;
+int smb_current_kmalloced;
+int smb_current_vmalloced;
+#endif
+
+static DECLARE_FSTYPE( smb_fs_type, "smbfs", smb_read_super, 0);
+
+static int __init init_smb_fs(void)
+{
+	DEBUG1("registering ...\n");
+
+#ifdef DEBUG_SMB_MALLOC
+	smb_malloced = 0;
+	smb_current_kmalloced = 0;
+	smb_current_vmalloced = 0;
+#endif
+
+	return register_filesystem(&smb_fs_type);
+}
+
+static void __exit exit_smb_fs(void)
+{
+	DEBUG1("unregistering ...\n");
+	unregister_filesystem(&smb_fs_type);
+#ifdef DEBUG_SMB_MALLOC
+	printk(KERN_DEBUG "smb_malloced: %d\n", smb_malloced);
+	printk(KERN_DEBUG "smb_current_kmalloced: %d\n",smb_current_kmalloced);
+	printk(KERN_DEBUG "smb_current_vmalloced: %d\n",smb_current_vmalloced);
+#endif
+}
+
+EXPORT_NO_SYMBOLS;
+
+module_init(init_smb_fs)
+module_exit(exit_smb_fs)
+MODULE_LICENSE("GPL");
diff --git a/fs/smbfs/ioctl.c b/fs/smbfs/ioctl.c
new file mode 100644
index 00000000000000..afc45b4f7fd9eb
--- /dev/null
+++ b/fs/smbfs/ioctl.c
@@ -0,0 +1,57 @@
+/*
+ *  ioctl.c
+ *
+ *  Copyright (C) 1995, 1996 by Volker Lendecke
+ *  Copyright (C) 1997 by Volker Lendecke
+ *
+ *  Please add a note about your changes to smbfs in the ChangeLog file.
+ */
+
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/ioctl.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/highuid.h>
+
+#include <linux/smb_fs.h>
+#include <linux/smb_mount.h>
+
+#include <asm/uaccess.h>
+
+#include "proto.h"
+
+int
+smb_ioctl(struct inode *inode, struct file *filp,
+	  unsigned int cmd, unsigned long arg)
+{
+	struct smb_sb_info *server = server_from_inode(inode);
+	struct smb_conn_opt opt;
+	int result = -EINVAL;
+
+	switch (cmd) {
+	case SMB_IOC_GETMOUNTUID:
+		result = put_user(NEW_TO_OLD_UID(server->mnt->mounted_uid),
+				  (uid16_t *) arg);
+		break;
+	case SMB_IOC_GETMOUNTUID32:
+		result = put_user(server->mnt->mounted_uid, (uid_t *) arg);
+		break;
+
+	case SMB_IOC_NEWCONN:
+		/* arg is smb_conn_opt, or NULL if no connection was made */
+		if (!arg) {
+			result = smb_wakeup(server);
+			break;
+		}
+
+		result = -EFAULT;
+		if (!copy_from_user(&opt, (void *)arg, sizeof(opt)))
+			result = smb_newconn(server, &opt);
+		break;
+	default:
+		break;
+	}
+
+	return result;
+}
diff --git a/fs/smbfs/proc.c b/fs/smbfs/proc.c
new file mode 100644
index 00000000000000..6842cb61a7340a
--- /dev/null
+++ b/fs/smbfs/proc.c
@@ -0,0 +1,3366 @@
+/*
+ *  proc.c
+ *
+ *  Copyright (C) 1995, 1996 by Paal-Kr. Engstad and Volker Lendecke
+ *  Copyright (C) 1997 by Volker Lendecke
+ *
+ *  Please add a note about your changes to smbfs in the ChangeLog file.
+ */
+
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/stat.h>
+#include <linux/fcntl.h>
+#include <linux/dcache.h>
+#include <linux/dirent.h>
+#include <linux/nls.h>
+
+#include <linux/smb_fs.h>
+#include <linux/smbno.h>
+#include <linux/smb_mount.h>
+
+#include <asm/string.h>
+#include <asm/div64.h>
+
+#include "smb_debug.h"
+#include "proto.h"
+
+
+/* Features. Undefine if they cause problems, this should perhaps be a
+   config option. */
+#define SMBFS_POSIX_UNLINK 1
+
+#define SMB_VWV(packet)  ((packet) + SMB_HEADER_LEN)
+#define SMB_CMD(packet)  (*(packet+8))
+#define SMB_WCT(packet)  (*(packet+SMB_HEADER_LEN - 1))
+#define SMB_BCC(packet)  smb_bcc(packet)
+#define SMB_BUF(packet)  ((packet) + SMB_HEADER_LEN + SMB_WCT(packet) * 2 + 2)
+
+#define SMB_DIRINFO_SIZE 43
+#define SMB_STATUS_SIZE  21
+
+#define SMB_ST_BLKSIZE	(PAGE_SIZE)
+#define SMB_ST_BLKSHIFT	(PAGE_SHIFT)
+
+static struct smb_ops smb_ops_core;
+static struct smb_ops smb_ops_os2;
+static struct smb_ops smb_ops_win95;
+static struct smb_ops smb_ops_winNT;
+static struct smb_ops smb_ops_unix;
+
+static void
+smb_init_dirent(struct smb_sb_info *server, struct smb_fattr *fattr);
+static void
+smb_finish_dirent(struct smb_sb_info *server, struct smb_fattr *fattr);
+static int
+smb_proc_getattr_core(struct smb_sb_info *server, struct dentry *dir,
+		      struct smb_fattr *fattr);
+static int
+smb_proc_getattr_ff(struct smb_sb_info *server, struct dentry *dir,
+		    struct smb_fattr *fattr);
+static int
+smb_proc_setattr_ext(struct smb_sb_info *, struct inode *,
+		     struct smb_fattr *);
+static int
+smb_proc_setattr_core(struct smb_sb_info *server, struct dentry *dentry,
+                      __u16 attr);
+static void
+install_ops(struct smb_ops *dst, struct smb_ops *src);
+static int
+smb_proc_query_cifsunix(struct smb_sb_info *server);
+
+
+static void
+str_upper(char *name, int len)
+{
+	while (len--)
+	{
+		if (*name >= 'a' && *name <= 'z')
+			*name -= ('a' - 'A');
+		name++;
+	}
+}
+
+#if 0
+static void
+str_lower(char *name, int len)
+{
+	while (len--)
+	{
+		if (*name >= 'A' && *name <= 'Z')
+			*name += ('a' - 'A');
+		name++;
+	}
+}
+#endif
+
+/* reverse a string inline. This is used by the dircache walking routines */
+static void reverse_string(char *buf, int len)
+{
+	char c;
+	char *end = buf+len-1;
+
+	while(buf < end) {
+		c = *buf;
+		*(buf++) = *end;
+		*(end--) = c;
+	}
+}
+
+/* no conversion, just a wrapper for memcpy. */
+static int convert_memcpy(unsigned char *output, int olen,
+			  const unsigned char *input, int ilen,
+			  struct nls_table *nls_from,
+			  struct nls_table *nls_to)
+{
+	if (olen < ilen)
+		return -ENAMETOOLONG;
+	memcpy(output, input, ilen);
+	return ilen;
+}
+
+static inline int write_char(unsigned char ch, char *output, int olen)
+{
+	if (olen < 4)
+		return -ENAMETOOLONG;
+	sprintf(output, ":x%02x", ch);
+	return 4;
+}
+
+static inline int write_unichar(wchar_t ch, char *output, int olen)
+{
+	if (olen < 5)
+		return -ENAMETOOLONG;
+	sprintf(output, ":%04x", ch);
+	return 5;
+}
+
+/* convert from one "codepage" to another (possibly being utf8). */
+static int convert_cp(unsigned char *output, int olen,
+		      const unsigned char *input, int ilen,
+		      struct nls_table *nls_from,
+		      struct nls_table *nls_to)
+{
+	int len = 0;
+	int n;
+	wchar_t ch;
+
+	while (ilen > 0) {
+		/* convert by changing to unicode and back to the new cp */
+		n = nls_from->char2uni((unsigned char *)input, ilen, &ch);
+		if (n == -EINVAL) {
+			ilen--;
+			n = write_char(*input++, output, olen);
+			if (n < 0)
+				goto fail;
+			output += n;
+			olen -= n;
+			len += n;
+			continue;
+		} else if (n < 0)
+			goto fail;
+		input += n;
+		ilen -= n;
+
+		n = nls_to->uni2char(ch, output, olen);
+		if (n == -EINVAL)
+			n = write_unichar(ch, output, olen);
+		if (n < 0)
+			goto fail;
+		output += n;
+		olen -= n;
+
+		len += n;
+	}
+	return len;
+fail:
+	return n;
+}
+
+static int setcodepage(struct nls_table **p, char *name)
+{
+	struct nls_table *nls;
+
+	if (!name || !*name) {
+		nls = NULL;
+	} else if ( (nls = load_nls(name)) == NULL) {
+		printk (KERN_ERR "smbfs: failed to load nls '%s'\n", name);
+		return -EINVAL;
+	}
+
+	/* if already set, unload the previous one. */
+	if (*p)
+		unload_nls(*p);
+	*p = nls;
+
+	return 0;
+}
+
+/* Handles all changes to codepage settings. */
+int smb_setcodepage(struct smb_sb_info *server, struct smb_nls_codepage *cp)
+{
+	int n = 0;
+
+	smb_lock_server(server);
+
+	/* Don't load any nls_* at all, if no remote is requested */
+	if (!*cp->remote_name)
+		goto out;
+
+	n = setcodepage(&server->local_nls, cp->local_name);
+	if (n != 0)
+		goto out;
+	n = setcodepage(&server->remote_nls, cp->remote_name);
+	if (n != 0)
+		setcodepage(&server->local_nls, NULL);
+
+out:
+	if (server->local_nls != NULL && server->remote_nls != NULL)
+		server->ops->convert = convert_cp;
+	else
+		server->ops->convert = convert_memcpy;
+
+	smb_unlock_server(server);
+	return n;
+}
+
+
+/*****************************************************************************/
+/*                                                                           */
+/*  Encoding/Decoding section                                                */
+/*                                                                           */
+/*****************************************************************************/
+
+static __u8 *
+smb_encode_smb_length(__u8 * p, __u32 len)
+{
+	*p = 0;
+	*(p+1) = 0;
+	*(p+2) = (len & 0xFF00) >> 8;
+	*(p+3) = (len & 0xFF);
+	if (len > 0xFFFF)
+	{
+		*(p+1) = 1;
+	}
+	return p + 4;
+}
+
+/*
+ * smb_build_path: build the path to entry and name storing it in buf.
+ * The path returned will have the trailing '\0'.
+ */
+static int smb_build_path(struct smb_sb_info *server, char * buf, int maxlen,
+			  struct dentry * entry, struct qstr * name)
+{
+	char *path = buf;
+	int len;
+
+	if (maxlen < 2)
+		return -ENAMETOOLONG;
+
+	if (maxlen > SMB_MAXPATHLEN + 1)
+		maxlen = SMB_MAXPATHLEN + 1;
+
+	if (entry == NULL)
+		goto test_name_and_out;
+
+	/*
+	 * If IS_ROOT, we have to do no walking at all.
+	 */
+	if (IS_ROOT(entry) && !name) {
+		*path++ = '\\';
+		*path++ = '\0';
+		return 2;
+	}
+
+	/*
+	 * Build the path string walking the tree backward from end to ROOT
+	 * and store it in reversed order [see reverse_string()]
+	 */
+	while (!IS_ROOT(entry)) {
+		if (maxlen < 3)
+			return -ENAMETOOLONG;
+
+		len = server->ops->convert(path, maxlen-2, 
+				      entry->d_name.name, entry->d_name.len,
+				      server->local_nls, server->remote_nls);
+		if (len < 0)
+			return len;
+		reverse_string(path, len);
+		path += len;
+		*path++ = '\\';
+		maxlen -= len+1;
+
+		entry = entry->d_parent;
+		if (IS_ROOT(entry))
+			break;
+	}
+	reverse_string(buf, path-buf);
+
+	/* maxlen is at least 1 */
+test_name_and_out:
+	if (name) {
+		if (maxlen < 3)
+			return -ENAMETOOLONG;
+		*path++ = '\\';
+		len = server->ops->convert(path, maxlen-2, 
+				      name->name, name->len,
+				      server->local_nls, server->remote_nls);
+		if (len < 0)
+			return len;
+		path += len;
+		maxlen -= len+1;
+	}
+	/* maxlen is at least 1 */
+	*path++ = '\0';
+	return path-buf;
+}
+
+static int smb_encode_path(struct smb_sb_info *server, char *buf, int maxlen,
+			   struct dentry *dir, struct qstr *name)
+{
+	int result;
+
+	result = smb_build_path(server, buf, maxlen, dir, name);
+	if (result < 0)
+		goto out;
+	if (server->opt.protocol <= SMB_PROTOCOL_COREPLUS)
+		str_upper(buf, result);
+out:
+	return result;
+}
+
+static int smb_simple_encode_path(struct smb_sb_info *server, char **p,
+			  struct dentry * entry, struct qstr * name)
+{
+	char *s = *p;
+	int res;
+	int maxlen = ((char *)server->packet + server->packet_size) - s;
+
+	if (!maxlen)
+		return -ENAMETOOLONG;
+	*s++ = 4;
+	res = smb_encode_path(server, s, maxlen-1, entry, name);
+	if (res < 0)
+		return res;
+	*p = s + res;
+	return 0;
+}
+
+/* The following are taken directly from msdos-fs */
+
+/* Linear day numbers of the respective 1sts in non-leap years. */
+
+static int day_n[] =
+{0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 0, 0, 0, 0};
+		  /* JanFebMarApr May Jun Jul Aug Sep Oct Nov Dec */
+
+
+static time_t
+utc2local(struct smb_sb_info *server, time_t time)
+{
+	return time - server->opt.serverzone*60;
+}
+
+static time_t
+local2utc(struct smb_sb_info *server, time_t time)
+{
+	return time + server->opt.serverzone*60;
+}
+
+/* Convert a MS-DOS time/date pair to a UNIX date (seconds since 1 1 70). */
+
+static time_t
+date_dos2unix(struct smb_sb_info *server, __u16 date, __u16 time)
+{
+	int month, year;
+	time_t secs;
+
+	/* first subtract and mask after that... Otherwise, if
+	   date == 0, bad things happen */
+	month = ((date >> 5) - 1) & 15;
+	year = date >> 9;
+	secs = (time & 31) * 2 + 60 * ((time >> 5) & 63) + (time >> 11) * 3600 + 86400 *
+	    ((date & 31) - 1 + day_n[month] + (year / 4) + year * 365 - ((year & 3) == 0 &&
+						   month < 2 ? 1 : 0) + 3653);
+	/* days since 1.1.70 plus 80's leap day */
+	return local2utc(server, secs);
+}
+
+
+/* Convert linear UNIX date to a MS-DOS time/date pair. */
+
+static void
+date_unix2dos(struct smb_sb_info *server,
+	      int unix_date, __u16 *date, __u16 *time)
+{
+	int day, year, nl_day, month;
+
+	unix_date = utc2local(server, unix_date);
+	if (unix_date < 315532800)
+		unix_date = 315532800;
+
+	*time = (unix_date % 60) / 2 +
+		(((unix_date / 60) % 60) << 5) +
+		(((unix_date / 3600) % 24) << 11);
+
+	day = unix_date / 86400 - 3652;
+	year = day / 365;
+	if ((year + 3) / 4 + 365 * year > day)
+		year--;
+	day -= (year + 3) / 4 + 365 * year;
+	if (day == 59 && !(year & 3)) {
+		nl_day = day;
+		month = 2;
+	} else {
+		nl_day = (year & 3) || day <= 59 ? day : day - 1;
+		for (month = 0; month < 12; month++)
+			if (day_n[month] > nl_day)
+				break;
+	}
+	*date = nl_day - day_n[month - 1] + 1 + (month << 5) + (year << 9);
+}
+
+/* The following are taken from fs/ntfs/util.c */
+
+#define NTFS_TIME_OFFSET ((u64)(369*365 + 89) * 24 * 3600 * 10000000)
+
+/*
+ * Convert the NT UTC (based 1601-01-01, in hundred nanosecond units)
+ * into Unix UTC (based 1970-01-01, in seconds).
+ */
+static time_t
+smb_ntutc2unixutc(u64 ntutc)
+{
+	/* FIXME: what about the timezone difference? */
+	/* Subtract the NTFS time offset, then convert to 1s intervals. */
+	u64 t = ntutc - NTFS_TIME_OFFSET;
+	do_div(t, 10000000);
+	return (time_t)t;
+}
+
+static u64
+smb_unixutc2ntutc(time_t t)
+{
+	/* Note: timezone conversion is probably wrong. */
+	return ((u64)t) * 10000000 + NTFS_TIME_OFFSET;
+}
+
+#define MAX_FILE_MODE   6
+static mode_t file_mode[] = {
+	S_IFREG, S_IFDIR, S_IFLNK, S_IFCHR, S_IFBLK, S_IFIFO, S_IFSOCK
+};
+
+static int smb_filetype_to_mode(u32 filetype)
+{
+	if (filetype > MAX_FILE_MODE) {
+		PARANOIA("Filetype out of range: %d\n", filetype);
+		return S_IFREG;
+	}
+	return file_mode[filetype];
+}
+
+static u32 smb_filetype_from_mode(int mode)
+{
+	if (mode & S_IFREG)
+		return UNIX_TYPE_FILE;
+	if (mode & S_IFDIR)
+		return UNIX_TYPE_DIR;
+	if (mode & S_IFLNK)
+		return UNIX_TYPE_SYMLINK;
+	if (mode & S_IFCHR)
+		return UNIX_TYPE_CHARDEV;
+	if (mode & S_IFBLK)
+		return UNIX_TYPE_BLKDEV;
+	if (mode & S_IFIFO)
+		return UNIX_TYPE_FIFO;
+	if (mode & S_IFSOCK)
+		return UNIX_TYPE_SOCKET;
+	return UNIX_TYPE_UNKNOWN;
+}
+
+
+/*****************************************************************************/
+/*                                                                           */
+/*  Support section.                                                         */
+/*                                                                           */
+/*****************************************************************************/
+
+__u32
+smb_len(__u8 * p)
+{
+	return ((*(p+1) & 0x1) << 16L) | (*(p+2) << 8L) | *(p+3);
+}
+
+static __u16
+smb_bcc(__u8 * packet)
+{
+	int pos = SMB_HEADER_LEN + SMB_WCT(packet) * sizeof(__u16);
+	return WVAL(packet, pos);
+}
+
+/* smb_valid_packet: We check if packet fulfills the basic
+   requirements of a smb packet */
+
+static int
+smb_valid_packet(__u8 * packet)
+{
+	return (packet[4] == 0xff
+		&& packet[5] == 'S'
+		&& packet[6] == 'M'
+		&& packet[7] == 'B'
+		&& (smb_len(packet) + 4 == SMB_HEADER_LEN
+		    + SMB_WCT(packet) * 2 + SMB_BCC(packet)));
+}
+
+/* smb_verify: We check if we got the answer we expected, and if we
+   got enough data. If bcc == -1, we don't care. */
+
+static int
+smb_verify(__u8 * packet, int command, int wct, int bcc)
+{
+	if (SMB_CMD(packet) != command)
+		goto bad_command;
+	if (SMB_WCT(packet) < wct)
+		goto bad_wct;
+	if (bcc != -1 && SMB_BCC(packet) < bcc)
+		goto bad_bcc;
+	return 0;
+
+bad_command:
+	printk(KERN_ERR "smb_verify: command=%x, SMB_CMD=%x??\n",
+	       command, SMB_CMD(packet));
+	goto fail;
+bad_wct:
+	printk(KERN_ERR "smb_verify: command=%x, wct=%d, SMB_WCT=%d??\n",
+	       command, wct, SMB_WCT(packet));
+	goto fail;
+bad_bcc:
+	printk(KERN_ERR "smb_verify: command=%x, bcc=%d, SMB_BCC=%d??\n",
+	       command, bcc, SMB_BCC(packet));
+fail:
+	return -EIO;
+}
+
+/*
+ * Returns the maximum read or write size for the "payload". Making all of the
+ * packet fit within the negotiated max_xmit size.
+ *
+ * N.B. Since this value is usually computed before locking the server,
+ * the server's packet size must never be decreased!
+ */
+static inline int
+smb_get_xmitsize(struct smb_sb_info *server, int overhead)
+{
+	return server->opt.max_xmit - overhead;
+}
+
+/*
+ * Calculate the maximum read size
+ */
+int
+smb_get_rsize(struct smb_sb_info *server)
+{
+	/* readX has 12 parameters, read has 5 */
+	int overhead = SMB_HEADER_LEN + 12 * sizeof(__u16) + 2 + 1 + 2;
+	int size = smb_get_xmitsize(server, overhead);
+
+	VERBOSE("packet=%d, xmit=%d, size=%d\n",
+		server->packet_size, server->opt.max_xmit, size);
+
+	return size;
+}
+
+/*
+ * Calculate the maximum write size
+ */
+int
+smb_get_wsize(struct smb_sb_info *server)
+{
+	/* writeX has 14 parameters, write has 5 */
+	int overhead = SMB_HEADER_LEN + 14 * sizeof(__u16) + 2 + 1 + 2;
+	int size = smb_get_xmitsize(server, overhead);
+
+	VERBOSE("packet=%d, xmit=%d, size=%d\n",
+		server->packet_size, server->opt.max_xmit, size);
+
+	return size;
+}
+
+/*
+ * Convert SMB error codes to -E... errno values.
+ */
+int
+smb_errno(struct smb_sb_info *server)
+{
+	int errcls = server->rcls;
+	int error  = server->err;
+	char *class = "Unknown";
+
+	VERBOSE("errcls %d  code %d  from command 0x%x\n",
+		errcls, error, SMB_CMD(server->packet));
+
+	if (errcls == ERRDOS) {
+		switch (error) {
+		case ERRbadfunc:
+			return -EINVAL;
+		case ERRbadfile:
+		case ERRbadpath:
+			return -ENOENT;
+		case ERRnofids:
+			return -EMFILE;
+		case ERRnoaccess:
+			return -EACCES;
+		case ERRbadfid:
+			return -EBADF;
+		case ERRbadmcb:
+			return -EREMOTEIO;
+		case ERRnomem:
+			return -ENOMEM;
+		case ERRbadmem:
+			return -EFAULT;
+		case ERRbadenv:
+		case ERRbadformat:
+			return -EREMOTEIO;
+		case ERRbadaccess:
+			return -EACCES;
+		case ERRbaddata:
+			return -E2BIG;
+		case ERRbaddrive:
+			return -ENXIO;
+		case ERRremcd:
+			return -EREMOTEIO;
+		case ERRdiffdevice:
+			return -EXDEV;
+		case ERRnofiles:
+			return -ENOENT;
+		case ERRbadshare:
+			return -ETXTBSY;
+		case ERRlock:
+			return -EDEADLK;
+		case ERRfilexists:
+			return -EEXIST;
+		case ERROR_INVALID_PARAMETER:
+			return -EINVAL;
+		case ERROR_DISK_FULL:
+			return -ENOSPC;
+		case ERROR_INVALID_NAME:
+			return -ENOENT;
+		case ERROR_DIR_NOT_EMPTY:
+			return -ENOTEMPTY;
+		case ERROR_NOT_LOCKED:
+                       return -ENOLCK;
+		case ERROR_ALREADY_EXISTS:
+			return -EEXIST;
+		default:
+			class = "ERRDOS";
+			goto err_unknown;
+		}
+	} else if (errcls == ERRSRV) {
+		switch (error) {
+		/* N.B. This is wrong ... EIO ? */
+		case ERRerror:
+			return -ENFILE;
+		case ERRbadpw:
+			return -EINVAL;
+		case ERRbadtype:
+			return -EIO;
+		case ERRaccess:
+			return -EACCES;
+		/*
+		 * This is a fatal error, as it means the "tree ID"
+		 * for this connection is no longer valid. We map
+		 * to a special error code and get a new connection.
+		 */
+		case ERRinvnid:
+			return -EBADSLT;
+		default:
+			class = "ERRSRV";
+			goto err_unknown;
+		}
+	} else if (errcls == ERRHRD) {
+		switch (error) {
+		case ERRnowrite:
+			return -EROFS;
+		case ERRbadunit:
+			return -ENODEV;
+		case ERRnotready:
+			return -EUCLEAN;
+		case ERRbadcmd:
+		case ERRdata:
+			return -EIO;
+		case ERRbadreq:
+			return -ERANGE;
+		case ERRbadshare:
+			return -ETXTBSY;
+		case ERRlock:
+			return -EDEADLK;
+		case ERRdiskfull:
+			return -ENOSPC;
+		default:
+			class = "ERRHRD";
+			goto err_unknown;
+		}
+	} else if (errcls == ERRCMD) {
+		class = "ERRCMD";
+	} else if (errcls == SUCCESS) {
+		return 0;	/* This is the only valid 0 return */
+	}
+
+err_unknown:
+	printk(KERN_ERR "smb_errno: class %s, code %d from command 0x%x\n",
+	       class, error, SMB_CMD(server->packet));
+	return -EIO;
+}
+
+/*
+ * smb_retry: This function should be called when smb_request_ok has
+ * indicated an error. If the error was indicated because the
+ * connection was killed, we try to reconnect. If smb_retry returns 0,
+ * the error was indicated for another reason, so a retry would not be
+ * of any use.
+ * N.B. The server must be locked for this call.
+ */
+static int
+smb_retry(struct smb_sb_info *server)
+{
+	pid_t pid = server->conn_pid;
+	int error, result = 0;
+
+	if (server->state == CONN_VALID || server->state == CONN_RETRYING)
+		goto out;
+
+	smb_close_socket(server);
+
+	if (pid == 0) {
+		printk(KERN_ERR "smb_retry: no connection process\n");
+		server->state = CONN_RETRIED;
+		goto out;
+	}
+
+	/*
+	 * Change state so that only one retry per server will be started.
+	 */
+	server->state = CONN_RETRYING;
+
+	/*
+	 * Note: use the "priv" flag, as a user process may need to reconnect.
+	 */
+	error = kill_proc(pid, SIGUSR1, 1);
+	if (error) {
+		/* FIXME: this is fatal */
+		printk(KERN_ERR "smb_retry: signal failed, error=%d\n", error);
+		goto out;
+	}
+	VERBOSE("signalled pid %d, waiting for new connection\n", pid);
+
+	/*
+	 * Wait for the new connection.
+	 */
+	smb_unlock_server(server);
+	interruptible_sleep_on_timeout(&server->wait, server->mnt->timeo*HZ);
+	smb_lock_server(server);
+	if (signal_pending(current))
+		printk(KERN_INFO "smb_retry: caught signal\n");
+
+	/*
+	 * Check for a valid connection.
+	 */
+	if (server->state == CONN_VALID) {
+		/* This should be changed to VERBOSE, except many smbfs
+		   problems is with the userspace daemon not reconnecting. */
+		PARANOIA("successful, new pid=%d, generation=%d\n",
+			 server->conn_pid, server->generation);
+		result = 1;
+	} else if (server->state == CONN_RETRYING) {
+		/* allow further attempts later */
+		server->state = CONN_RETRIED;
+	}
+
+out:
+	return result;
+}
+
+/* smb_request_ok: We expect the server to be locked. Then we do the
+   request and check the answer completely. When smb_request_ok
+   returns 0, you can be quite sure that everything went well. When
+   the answer is <=0, the returned number is a valid unix errno. */
+
+static int
+smb_request_ok(struct smb_sb_info *s, int command, int wct, int bcc)
+{
+	int result = -EIO;
+
+	s->rcls = 0;
+	s->err = 0;
+
+	/* Make sure we have a connection */
+	if (s->state != CONN_VALID) {
+		if (!smb_retry(s))
+			goto out;
+	}
+
+	if (smb_request(s) < 0) {
+		DEBUG1("smb_request failed\n");
+		goto out;
+	}
+	if (smb_valid_packet(s->packet) != 0) {
+		PARANOIA("invalid packet!\n");
+		goto out;
+	}
+
+	/*
+	 * Check for server errors.
+	 */
+	if (s->rcls != 0) {
+		result = smb_errno(s);
+		if (!result)
+			printk(KERN_DEBUG "smb_request_ok: rcls=%d, err=%d mapped to 0\n",
+				s->rcls, s->err);
+		/*
+		 * Exit now even if the error was squashed ...
+		 * packet verify will fail anyway.
+		 */
+		goto out;
+	}
+	result = smb_verify(s->packet, command, wct, bcc);
+
+out:
+	return result;
+}
+
+/*
+ * This implements the NEWCONN ioctl. It installs the server pid,
+ * sets server->state to CONN_VALID, and wakes up the waiting process.
+ */
+int
+smb_newconn(struct smb_sb_info *server, struct smb_conn_opt *opt)
+{
+	struct file *filp;
+	int error;
+
+	VERBOSE("fd=%d, pid=%d\n", opt->fd, current->pid);
+
+	smb_lock_server(server);
+
+	/*
+	 * Make sure we don't already have a valid connection ...
+	 */
+	error = -EINVAL;
+	if (server->state == CONN_VALID)
+		goto out;
+
+	error = -EACCES;
+	if (current->uid != server->mnt->mounted_uid && 
+	    !capable(CAP_SYS_ADMIN))
+		goto out;
+
+	error = -EBADF;
+	filp = fget(opt->fd);
+	if (!filp)
+		goto out;
+	if (!smb_valid_socket(filp->f_dentry->d_inode))
+		goto out_putf;
+
+	server->sock_file = filp;
+	server->conn_pid = current->pid;
+	smb_catch_keepalive(server);
+	server->opt = *opt;
+	server->generation += 1;
+	server->state = CONN_VALID;
+	error = 0;
+
+	/* check if we have an old smbmount that uses seconds for the 
+	   serverzone */
+	if (server->opt.serverzone > 12*60 || server->opt.serverzone < -12*60)
+		server->opt.serverzone /= 60;
+
+	/* now that we have an established connection we can detect the server
+	   type and enable bug workarounds */
+	if (server->opt.protocol < SMB_PROTOCOL_LANMAN2)
+		install_ops(server->ops, &smb_ops_core);
+	else if (server->opt.protocol == SMB_PROTOCOL_LANMAN2)
+		install_ops(server->ops, &smb_ops_os2);
+	else if (server->opt.protocol == SMB_PROTOCOL_NT1 &&
+		 (server->opt.max_xmit < 0x1000) &&
+		 !(server->opt.capabilities & SMB_CAP_NT_SMBS)) {
+		/* FIXME: can we kill the WIN95 flag now? */
+		server->mnt->flags |= SMB_MOUNT_WIN95;
+		VERBOSE("detected WIN95 server\n");
+		install_ops(server->ops, &smb_ops_win95);
+	} else {
+		/*
+		 * Samba has max_xmit 65535
+		 * NT4spX has max_xmit 4536 (or something like that)
+		 * win2k has ...
+		 */
+		VERBOSE("detected NT1 (Samba, NT4/5) server\n");
+		install_ops(server->ops, &smb_ops_winNT);
+	}
+
+	/* FIXME: the win9x code wants to modify these ... (seek/trunc bug) */
+	if (server->mnt->flags & SMB_MOUNT_OLDATTR) {
+		server->ops->getattr = smb_proc_getattr_core;
+	} else if (server->mnt->flags & SMB_MOUNT_DIRATTR) {
+		server->ops->getattr = smb_proc_getattr_ff;
+	}
+
+	/* Decode server capabilities */
+	if (server->opt.capabilities & SMB_CAP_LARGE_FILES) {
+		/* Should be ok to set this now, as no one can access the
+		   mount until the connection has been established. */
+		SB_of(server)->s_maxbytes = ~0ULL >> 1;
+		VERBOSE("LFS enabled\n");
+	}
+#ifndef CONFIG_SMB_UNIX
+	server->opt.capabilities &= ~SMB_CAP_UNIX;
+#endif
+	if (server->opt.capabilities & SMB_CAP_UNIX) {
+		struct inode *inode;
+		VERBOSE("Using UNIX CIFS extensions\n");
+		install_ops(server->ops, &smb_ops_unix);
+		inode = SB_of(server)->s_root->d_inode;
+		if (inode)
+			inode->i_op = &smb_dir_inode_operations_unix;
+	}
+
+	VERBOSE("protocol=%d, max_xmit=%d, pid=%d capabilities=0x%x\n",
+		server->opt.protocol, server->opt.max_xmit, server->conn_pid,
+		server->opt.capabilities);
+
+	/* Make sure we can fit a message of the negotiated size in our
+	   packet buffer. */
+	if (server->opt.max_xmit > server->packet_size) {
+		int len = smb_round_length(server->opt.max_xmit);
+		char *buf = smb_vmalloc(len);
+		if (buf) {
+			if (server->packet)
+				smb_vfree(server->packet);
+			server->packet = buf;
+			server->packet_size = len;
+		} else {
+			/* else continue with the too small buffer? */
+			PARANOIA("Failed to allocate new packet buffer: "
+				 "max_xmit=%d, packet_size=%d\n",
+				 server->opt.max_xmit, server->packet_size);
+			server->opt.max_xmit = server->packet_size;
+		}
+	}
+
+	if (server->opt.capabilities & SMB_CAP_UNIX)
+		smb_proc_query_cifsunix(server);
+
+out:
+	smb_unlock_server(server);
+	smb_wakeup(server);
+	return error;
+
+out_putf:
+	fput(filp);
+	goto out;
+}
+
+int
+smb_wakeup(struct smb_sb_info *server)
+{
+	wake_up_interruptible(&server->wait);
+	return 0;
+}
+
+/* smb_setup_header: We completely set up the packet. You only have to
+   insert the command-specific fields */
+
+__u8 *
+smb_setup_header(struct smb_sb_info * server, __u8 command, __u16 wct, __u16 bcc)
+{
+	__u32 xmit_len = SMB_HEADER_LEN + wct * sizeof(__u16) + bcc + 2;
+	__u8 *p = server->packet;
+	__u8 *buf = server->packet;
+
+	if (xmit_len > server->packet_size)
+		printk(KERN_DEBUG "smb_setup_header: "
+		       "Aieee, xmit len > packet! len=%d, size=%d\n",
+		       xmit_len, server->packet_size);
+
+	p = smb_encode_smb_length(p, xmit_len - 4);
+
+	*p++ = 0xff;
+	*p++ = 'S';
+	*p++ = 'M';
+	*p++ = 'B';
+	*p++ = command;
+
+	memset(p, '\0', 19);
+	p += 19;
+	p += 8;
+
+	WSET(buf, smb_tid, server->opt.tid);
+	WSET(buf, smb_pid, 1);
+	WSET(buf, smb_uid, server->opt.server_uid);
+	WSET(buf, smb_mid, 1);
+
+	if (server->opt.protocol > SMB_PROTOCOL_CORE)
+	{
+		*(buf+smb_flg) = 0x8;
+		WSET(buf, smb_flg2, 0x3);
+	}
+	*p++ = wct;		/* wct */
+	p += 2 * wct;
+	WSET(p, 0, bcc);
+	return p + 2;
+}
+
+static void
+smb_setup_bcc(struct smb_sb_info *server, __u8 * p)
+{
+	__u8 *packet = server->packet;
+	__u8 *pbcc = packet + SMB_HEADER_LEN + 2 * SMB_WCT(packet);
+	__u16 bcc = p - (pbcc + 2);
+
+	WSET(pbcc, 0, bcc);
+	smb_encode_smb_length(packet,
+			      SMB_HEADER_LEN + 2 * SMB_WCT(packet) - 2 + bcc);
+}
+
+/*
+ * Called with the server locked
+ */
+static int
+smb_proc_seek(struct smb_sb_info *server, __u16 fileid,
+	      __u16 mode, off_t offset)
+{
+	int result;
+
+	smb_setup_header(server, SMBlseek, 4, 0);
+	WSET(server->packet, smb_vwv0, fileid);
+	WSET(server->packet, smb_vwv1, mode);
+	DSET(server->packet, smb_vwv2, offset);
+
+	result = smb_request_ok(server, SMBlseek, 2, 0);
+	if (result < 0) {
+		result = 0;
+		goto out;
+	}
+
+	result = DVAL(server->packet, smb_vwv0);
+out:
+	return result;
+}
+
+/*
+ * We're called with the server locked, and we leave it that way.
+ */
+static int
+smb_proc_open(struct smb_sb_info *server, struct dentry *dentry, int wish)
+{
+	struct inode *ino = dentry->d_inode;
+	int mode, read_write = 0x42, read_only = 0x40;
+	int res;
+	char *p;
+
+	/*
+	 * Attempt to open r/w, unless there are no write privileges.
+	 */
+	mode = read_write;
+	if (!(ino->i_mode & (S_IWUSR | S_IWGRP | S_IWOTH)))
+		mode = read_only;
+#if 0
+	/* FIXME: why is this code not in? below we fix it so that a caller
+	   wanting RO doesn't get RW. smb_revalidate_inode does some 
+	   optimization based on access mode. tail -f needs it to be correct.
+
+	   We must open rw since we don't do the open if called a second time
+	   with different 'wish'. Is that not supported by smb servers? */
+	if (!(wish & (O_WRONLY | O_RDWR)))
+		mode = read_only;
+#endif
+
+      retry:
+	p = smb_setup_header(server, SMBopen, 2, 0);
+	WSET(server->packet, smb_vwv0, mode);
+	WSET(server->packet, smb_vwv1, aSYSTEM | aHIDDEN | aDIR);
+	res = smb_simple_encode_path(server, &p, dentry, NULL);
+	if (res < 0)
+		goto out;
+	smb_setup_bcc(server, p);
+
+	res = smb_request_ok(server, SMBopen, 7, 0);
+	if (res != 0) {
+		if (smb_retry(server))
+			goto retry;
+
+		if (mode == read_write &&
+		    (res == -EACCES || res == -ETXTBSY || res == -EROFS))
+		{
+			VERBOSE("%s/%s R/W failed, error=%d, retrying R/O\n",
+				DENTRY_PATH(dentry), res);
+			mode = read_only;
+			goto retry;
+		}
+		goto out;
+	}
+	/* We should now have data in vwv[0..6]. */
+
+	ino->u.smbfs_i.fileid = WVAL(server->packet, smb_vwv0);
+	ino->u.smbfs_i.attr   = WVAL(server->packet, smb_vwv1);
+	/* smb_vwv2 has mtime */
+	/* smb_vwv4 has size  */
+	ino->u.smbfs_i.access = (WVAL(server->packet, smb_vwv6) & SMB_ACCMASK);
+	ino->u.smbfs_i.open = server->generation;
+
+out:
+	return res;
+}
+
+/*
+ * Make sure the file is open, and check that the access
+ * is compatible with the desired access.
+ */
+int
+smb_open(struct dentry *dentry, int wish)
+{
+	struct inode *inode = dentry->d_inode;
+	int result;
+
+	result = -ENOENT;
+	if (!inode) {
+		printk(KERN_ERR "smb_open: no inode for dentry %s/%s\n",
+		       DENTRY_PATH(dentry));
+		goto out;
+	}
+
+	if (!smb_is_open(inode)) {
+		struct smb_sb_info *server = server_from_inode(inode);
+		smb_lock_server(server);
+		result = 0;
+		if (!smb_is_open(inode))
+			result = smb_proc_open(server, dentry, wish);
+		smb_unlock_server(server);
+		if (result) {
+			PARANOIA("%s/%s open failed, result=%d\n",
+				 DENTRY_PATH(dentry), result);
+			goto out;
+		}
+		/*
+		 * A successful open means the path is still valid ...
+		 */
+		smb_renew_times(dentry);
+	}
+
+	/*
+	 * Check whether the access is compatible with the desired mode.
+	 */
+	result = 0;
+	if (inode->u.smbfs_i.access != wish && 
+	    inode->u.smbfs_i.access != SMB_O_RDWR)
+	{
+		PARANOIA("%s/%s access denied, access=%x, wish=%x\n",
+			 DENTRY_PATH(dentry), inode->u.smbfs_i.access, wish);
+		result = -EACCES;
+	}
+out:
+	return result;
+}
+
+/* We're called with the server locked */
+
+static int 
+smb_proc_close(struct smb_sb_info *server, __u16 fileid, __u32 mtime)
+{
+	smb_setup_header(server, SMBclose, 3, 0);
+	WSET(server->packet, smb_vwv0, fileid);
+	DSET(server->packet, smb_vwv1, utc2local(server, mtime));
+	return smb_request_ok(server, SMBclose, 0, 0);
+}
+
+/*
+ * Called with the server locked.
+ *
+ * Win NT 4.0 has an apparent bug in that it fails to update the
+ * modify time when writing to a file. As a workaround, we update
+ * both modify and access time locally, and post the times to the
+ * server when closing the file.
+ */
+static int 
+smb_proc_close_inode(struct smb_sb_info *server, struct inode * ino)
+{
+	int result = 0;
+	if (smb_is_open(ino))
+	{
+		/*
+		 * We clear the open flag in advance, in case another
+ 		 * process observes the value while we block below.
+		 */
+		ino->u.smbfs_i.open = 0;
+
+		/*
+		 * Kludge alert: SMB timestamps are accurate only to
+		 * two seconds ... round the times to avoid needless
+		 * cache invalidations!
+		 */
+		if (ino->i_mtime & 1)
+			ino->i_mtime--;
+		if (ino->i_atime & 1)
+			ino->i_atime--;
+		/*
+		 * If the file is open with write permissions,
+		 * update the time stamps to sync mtime and atime.
+		 */
+		if ((server->opt.capabilities & SMB_CAP_UNIX) == 0 &&
+		    (server->opt.protocol >= SMB_PROTOCOL_LANMAN2) &&
+		    !(ino->u.smbfs_i.access == SMB_O_RDONLY))
+		{
+			struct smb_fattr fattr;
+			smb_get_inode_attr(ino, &fattr);
+			smb_proc_setattr_ext(server, ino, &fattr);
+		}
+
+		result = smb_proc_close(server, ino->u.smbfs_i.fileid,
+						ino->i_mtime);
+		/*
+		 * Force a revalidation after closing ... some servers
+		 * don't post the size until the file has been closed.
+		 */
+		if (server->opt.protocol < SMB_PROTOCOL_NT1)
+			ino->u.smbfs_i.oldmtime = 0;
+		ino->u.smbfs_i.closed = jiffies;
+	}
+	return result;
+}
+
+int
+smb_close(struct inode *ino)
+{
+	int result = 0;
+
+	if (smb_is_open(ino)) {
+		struct smb_sb_info *server = server_from_inode(ino);
+		smb_lock_server(server);
+		result = smb_proc_close_inode(server, ino);
+		smb_unlock_server(server);
+	}
+	return result;
+}
+
+/*
+ * This is used to close a file following a failed instantiate.
+ * Since we don't have an inode, we can't use any of the above.
+ */
+int
+smb_close_fileid(struct dentry *dentry, __u16 fileid)
+{
+	struct smb_sb_info *server = server_from_dentry(dentry);
+	int result;
+
+	smb_lock_server(server);
+	result = smb_proc_close(server, fileid, CURRENT_TIME);
+	smb_unlock_server(server);
+	return result;
+}
+
+/* In smb_proc_read and smb_proc_write we do not retry, because the
+   file-id would not be valid after a reconnection. */
+
+static int
+smb_proc_read(struct inode *inode, loff_t offset, int count, char *data)
+{
+	struct smb_sb_info *server = server_from_inode(inode);
+	__u16 returned_count, data_len;
+	unsigned char *buf;
+	int result;
+
+	smb_lock_server(server);
+	smb_setup_header(server, SMBread, 5, 0);
+	buf = server->packet;
+	WSET(buf, smb_vwv0, inode->u.smbfs_i.fileid);
+	WSET(buf, smb_vwv1, count);
+	DSET(buf, smb_vwv2, offset);
+	WSET(buf, smb_vwv4, 0);
+
+	result = smb_request_ok(server, SMBread, 5, -1);
+	if (result < 0)
+		goto out;
+	returned_count = WVAL(server->packet, smb_vwv0);
+
+	buf = SMB_BUF(server->packet);
+	data_len = WVAL(buf, 1);
+
+	/* we can NOT simply trust the data_len given by the server ... */
+	if (data_len > count ||
+		(buf+3 - server->packet) + data_len > server->packet_size) {
+		printk(KERN_ERR "smb_proc_read: invalid data length/offset!! "
+		       "%d > %d || (%p - %p) + %d > %d\n",
+		       data_len, count,
+		       buf+3, server->packet, data_len, server->packet_size);
+		result = -EIO;
+		goto out;
+	}
+
+	memcpy(data, buf+3, data_len);
+
+	if (returned_count != data_len) {
+		printk(KERN_NOTICE "smb_proc_read: returned != data_len\n");
+		printk(KERN_NOTICE "smb_proc_read: ret_c=%d, data_len=%d\n",
+		       returned_count, data_len);
+	}
+	result = data_len;
+
+out:
+	VERBOSE("ino=%ld, fileid=%d, count=%d, result=%d\n",
+		inode->i_ino, inode->u.smbfs_i.fileid, count, result);
+	smb_unlock_server(server);
+	return result;
+}
+
+static int
+smb_proc_write(struct inode *inode, loff_t offset, int count, const char *data)
+{
+	struct smb_sb_info *server = server_from_inode(inode);
+	int result;
+	__u8 *p;
+	__u16 fileid = inode->u.smbfs_i.fileid;
+
+	VERBOSE("ino=%ld, fileid=%d, count=%d@%Ld, packet_size=%d\n",
+		inode->i_ino, inode->u.smbfs_i.fileid, count, offset,
+		server->packet_size);
+
+	smb_lock_server(server);
+	p = smb_setup_header(server, SMBwrite, 5, count + 3);
+	WSET(server->packet, smb_vwv0, fileid);
+	WSET(server->packet, smb_vwv1, count);
+	DSET(server->packet, smb_vwv2, offset);
+	WSET(server->packet, smb_vwv4, 0);
+
+	*p++ = 1;
+	WSET(p, 0, count);
+	memcpy(p+2, data, count);
+
+	result = smb_request_ok(server, SMBwrite, 1, 0);
+	if (result >= 0)
+		result = WVAL(server->packet, smb_vwv0);
+
+	smb_unlock_server(server);
+	return result;
+}
+
+/*
+ * In smb_proc_readX and smb_proc_writeX we do not retry, because the
+ * file-id would not be valid after a reconnection.
+ */
+static int
+smb_proc_readX(struct inode *inode, loff_t offset, int count, char *data)
+{
+	struct smb_sb_info *server = server_from_inode(inode);
+	u16 data_len, data_off;
+	unsigned char *buf;
+	int result;
+
+	smb_lock_server(server);
+	smb_setup_header(server, SMBreadX, 12, 0);
+	buf = server->packet;
+	WSET(buf, smb_vwv0, 0x00ff);
+	WSET(buf, smb_vwv1, 0);
+	WSET(buf, smb_vwv2, inode->u.smbfs_i.fileid);
+	DSET(buf, smb_vwv3, (u32)offset);               /* low 32 bits */
+	WSET(buf, smb_vwv5, count);
+	WSET(buf, smb_vwv6, 0);
+	DSET(buf, smb_vwv7, 0);
+	WSET(buf, smb_vwv9, 0);
+	DSET(buf, smb_vwv10, (u32)(offset >> 32));      /* high 32 bits */
+	WSET(buf, smb_vwv11, 0);
+
+	result = smb_request_ok(server, SMBreadX, 12, -1);
+	if (result < 0)
+		goto out;
+	data_len = WVAL(server->packet, smb_vwv5);
+	data_off = WVAL(server->packet, smb_vwv6);
+	buf = smb_base(server->packet) + data_off;
+
+	/* we can NOT simply trust the info given by the server ... */
+	if (data_len > count ||
+		(buf - server->packet) + data_len > server->packet_size) {
+		printk(KERN_ERR "smb_proc_readX: invalid data length/offset!! "
+		       "%d > %d || (%p - %p) + %d > %d\n",
+		       data_len, count,
+		       buf, server->packet, data_len, server->packet_size);
+		result = -EIO;
+		goto out;
+	}
+
+	memcpy(data, buf, data_len);
+	result = data_len;
+
+out:
+	smb_unlock_server(server);
+	VERBOSE("ino=%ld, fileid=%d, count=%d, result=%d\n",
+		inode->i_ino, inode->u.smbfs_i.fileid, count, result);
+	return result;
+}
+
+static int
+smb_proc_writeX(struct inode *inode, loff_t offset, int count, const char *data)
+{
+	struct smb_sb_info *server = server_from_inode(inode);
+	int result;
+	u8 *p;
+
+	VERBOSE("ino=%ld, fileid=%d, count=%d@%Ld, packet_size=%d\n",
+		inode->i_ino, inode->u.smbfs_i.fileid, count, offset,
+		server->packet_size);
+
+	smb_lock_server(server);
+	p = smb_setup_header(server, SMBwriteX, 14, count + 2);
+	WSET(server->packet, smb_vwv0, 0x00ff);
+	WSET(server->packet, smb_vwv1, 0);
+	WSET(server->packet, smb_vwv2, inode->u.smbfs_i.fileid);
+	DSET(server->packet, smb_vwv3, (u32)offset);    /* low 32 bits */
+	DSET(server->packet, smb_vwv5, 0);
+	WSET(server->packet, smb_vwv7, 0);              /* write mode */
+	WSET(server->packet, smb_vwv8, 0);
+	WSET(server->packet, smb_vwv9, 0);
+	WSET(server->packet, smb_vwv10, count);         /* data length */
+	WSET(server->packet, smb_vwv11, p + 2 - smb_base(server->packet));
+	DSET(server->packet, smb_vwv12, (u32)(offset >> 32));
+	*p++ = 0;    /* FIXME: pad to short or long ... change +2 above also */
+	*p++ = 0;
+	memcpy(p, data, count);
+
+	result = smb_request_ok(server, SMBwriteX, 6, 0);
+	if (result >= 0)
+		result = WVAL(server->packet, smb_vwv2);
+
+	smb_unlock_server(server);
+	return result;
+}
+
+int
+smb_proc_create(struct dentry *dentry, __u16 attr, time_t ctime, __u16 *fileid)
+{
+	struct smb_sb_info *server = server_from_dentry(dentry);
+	char *p;
+	int result;
+
+	smb_lock_server(server);
+
+      retry:
+	p = smb_setup_header(server, SMBcreate, 3, 0);
+	WSET(server->packet, smb_vwv0, attr);
+	DSET(server->packet, smb_vwv1, utc2local(server, ctime));
+	result = smb_simple_encode_path(server, &p, dentry, NULL);
+	if (result < 0)
+		goto out;
+	smb_setup_bcc(server, p);
+
+	result = smb_request_ok(server, SMBcreate, 1, 0);
+	if (result < 0) {
+		if (smb_retry(server))
+			goto retry;
+		goto out;
+	}
+	*fileid = WVAL(server->packet, smb_vwv0);
+	result = 0;
+
+out:
+	smb_unlock_server(server);
+	return result;
+}
+
+int
+smb_proc_mv(struct dentry *old_dentry, struct dentry *new_dentry)
+{
+	struct smb_sb_info *server = server_from_dentry(old_dentry);
+	char *p;
+	int result;
+
+	smb_lock_server(server);
+
+      retry:
+	p = smb_setup_header(server, SMBmv, 1, 0);
+	WSET(server->packet, smb_vwv0, aSYSTEM | aHIDDEN | aDIR);
+	result = smb_simple_encode_path(server, &p, old_dentry, NULL);
+	if (result < 0)
+		goto out;
+	result = smb_simple_encode_path(server, &p, new_dentry, NULL);
+	if (result < 0)
+		goto out;
+	smb_setup_bcc(server, p);
+
+	if ((result = smb_request_ok(server, SMBmv, 0, 0)) < 0) {
+		if (smb_retry(server))
+			goto retry;
+		goto out;
+	}
+	result = 0;
+out:
+	smb_unlock_server(server);
+	return result;
+}
+
+/*
+ * Code common to mkdir and rmdir.
+ */
+static int
+smb_proc_generic_command(struct dentry *dentry, __u8 command)
+{
+	struct smb_sb_info *server = server_from_dentry(dentry);
+	char *p;
+	int result;
+
+	smb_lock_server(server);
+
+      retry:
+	p = smb_setup_header(server, command, 0, 0);
+	result = smb_simple_encode_path(server, &p, dentry, NULL);
+	if (result < 0)
+		goto out;
+	smb_setup_bcc(server, p);
+
+	result = smb_request_ok(server, command, 0, 0);
+	if (result < 0) {
+		if (smb_retry(server))
+			goto retry;
+		goto out;
+	}
+	result = 0;
+out:
+	smb_unlock_server(server);
+	return result;
+}
+
+int
+smb_proc_mkdir(struct dentry *dentry)
+{
+	return smb_proc_generic_command(dentry, SMBmkdir);
+}
+
+int
+smb_proc_rmdir(struct dentry *dentry)
+{
+	return smb_proc_generic_command(dentry, SMBrmdir);
+}
+
+#if SMBFS_POSIX_UNLINK
+/*
+ * Removes readonly attribute from a file. Used by unlink to give posix
+ * semantics.
+ * Note: called with the server locked.
+ */
+static int
+smb_set_rw(struct dentry *dentry,struct smb_sb_info *server)
+{
+	int result;
+	struct smb_fattr fattr;
+
+	/* first get current attribute */
+	smb_init_dirent(server, &fattr);
+	result = server->ops->getattr(server, dentry, &fattr);
+	smb_finish_dirent(server, &fattr);
+	if (result < 0)
+		return result;
+
+	/* if RONLY attribute is set, remove it */
+	if (fattr.attr & aRONLY) {  /* read only attribute is set */
+		fattr.attr &= ~aRONLY;
+		result = smb_proc_setattr_core(server, dentry, fattr.attr);
+	}
+	return result;
+}
+#endif
+
+int
+smb_proc_unlink(struct dentry *dentry)
+{
+	struct smb_sb_info *server = server_from_dentry(dentry);
+	int flag = 0;
+	char *p;
+	int result;
+
+	smb_lock_server(server);
+
+      retry:
+	p = smb_setup_header(server, SMBunlink, 1, 0);
+	WSET(server->packet, smb_vwv0, aSYSTEM | aHIDDEN);
+	result = smb_simple_encode_path(server, &p, dentry, NULL);
+	if (result < 0)
+		goto out;
+	smb_setup_bcc(server, p);
+
+	if ((result = smb_request_ok(server, SMBunlink, 0, 0)) < 0) {
+#if SMBFS_POSIX_UNLINK
+		if (result == -EACCES && !flag) {
+			/* Posix semantics is for the read-only state
+			   of a file to be ignored in unlink(). In the
+			   SMB world a unlink() is refused on a
+			   read-only file. To make things easier for
+			   unix users we try to override the files
+			   permission if the unlink fails with the
+			   right error.
+			   This introduces a race condition that could
+			   lead to a file being written by someone who
+			   shouldn't have access, but as far as I can
+			   tell that is unavoidable */
+
+			/* remove RONLY attribute and try again */
+			result = smb_set_rw(dentry,server);
+			if (result == 0) {
+				flag = 1;
+				goto retry;
+			}
+		}
+#endif
+		if (smb_retry(server))
+			goto retry;
+		goto out;
+	}
+	result = 0;
+out:
+	smb_unlock_server(server);
+	return result;
+}
+
+/*
+ * Called with the server locked
+ */
+int
+smb_proc_flush(struct smb_sb_info *server, __u16 fileid)
+{
+	smb_setup_header(server, SMBflush, 1, 0);
+	WSET(server->packet, smb_vwv0, fileid);
+	return smb_request_ok(server, SMBflush, 0, 0);
+}
+
+static int
+smb_proc_trunc32(struct inode *inode, loff_t length)
+{
+	/*
+	 * Writing 0bytes is old-SMB magic for truncating files.
+	 * MAX_NON_LFS should prevent this from being called with a too
+	 * large offset.
+	 */
+	return smb_proc_write(inode, length, 0, NULL);
+}
+
+static int
+smb_proc_trunc64(struct inode *inode, loff_t length)
+{
+	struct smb_sb_info *server = server_from_inode(inode);
+	int command;
+	int result;
+	char *param = server->temp_buf;
+	char data[8];
+	unsigned char *resp_data = NULL;
+	unsigned char *resp_param = NULL;
+	int resp_data_len = 0;
+	int resp_param_len = 0;
+
+	smb_lock_server(server);
+	command = TRANSACT2_SETFILEINFO;
+ 
+	/* FIXME: must we also set allocation size? winNT seems to do that */
+ retry:
+	WSET(param, 0, inode->u.smbfs_i.fileid);
+	WSET(param, 2, SMB_SET_FILE_END_OF_FILE_INFO);
+	WSET(param, 4, 0);
+	LSET(data, 0, length);
+	result = smb_trans2_request(server, command,
+				    8, data, 6, param,
+				    &resp_data_len, &resp_data,
+				    &resp_param_len, &resp_param);
+	if (result < 0) {
+		if (smb_retry(server))
+			goto retry;
+		goto out;
+	}
+	result = 0;
+	if (server->rcls != 0)
+		result = smb_errno(server);
+
+out:
+	smb_unlock_server(server);
+	return result;
+}
+
+static int
+smb_proc_trunc95(struct inode *inode, loff_t length)
+{
+	struct smb_sb_info *server = server_from_inode(inode);
+	int result = smb_proc_trunc32(inode, length);
+ 
+	/*
+	 * win9x doesn't appear to update the size immediately.
+	 * It will return the old file size after the truncate,
+	 * confusing smbfs. So we force an update.
+	 *
+	 * FIXME: is this still necessary?
+	 */
+	smb_lock_server(server);
+	smb_proc_flush(server, inode->u.smbfs_i.fileid);
+	smb_unlock_server(server);
+	return result;
+}
+
+static void
+smb_init_dirent(struct smb_sb_info *server, struct smb_fattr *fattr)
+{
+	memset(fattr, 0, sizeof(*fattr));
+
+	fattr->f_nlink = 1;
+	fattr->f_uid = server->mnt->uid;
+	fattr->f_gid = server->mnt->gid;
+	fattr->f_blksize = SMB_ST_BLKSIZE;
+	fattr->f_unix = 0;
+}
+
+static void
+smb_finish_dirent(struct smb_sb_info *server, struct smb_fattr *fattr)
+{
+	if (fattr->f_unix)
+		return;
+
+	fattr->f_mode = server->mnt->file_mode;
+	if (fattr->attr & aDIR) {
+		fattr->f_mode = server->mnt->dir_mode;
+		fattr->f_size = SMB_ST_BLKSIZE;
+	}
+	/* Check the read-only flag */
+	if (fattr->attr & aRONLY)
+		fattr->f_mode &= ~(S_IWUSR | S_IWGRP | S_IWOTH);
+
+	/* How many 512 byte blocks do we need for this file? */
+	fattr->f_blocks = 0;
+	if (fattr->f_size != 0)
+		fattr->f_blocks = 1 + ((fattr->f_size-1) >> 9);
+	return;
+}
+
+void
+smb_init_root_dirent(struct smb_sb_info *server, struct smb_fattr *fattr)
+{
+	smb_init_dirent(server, fattr);
+	fattr->attr = aDIR;
+	fattr->f_ino = 2; /* traditional root inode number */
+	fattr->f_mtime = CURRENT_TIME;
+	smb_finish_dirent(server, fattr);
+}
+
+/*
+ * Decode a dirent for old protocols
+ *
+ * qname is filled with the decoded, and possibly translated, name.
+ * fattr receives decoded attributes
+ *
+ * Bugs Noted:
+ * (1) Pathworks servers may pad the name with extra spaces.
+ */
+static char *
+smb_decode_short_dirent(struct smb_sb_info *server, char *p,
+			struct qstr *qname, struct smb_fattr *fattr)
+{
+	int len;
+
+	/*
+	 * SMB doesn't have a concept of inode numbers ...
+	 */
+	smb_init_dirent(server, fattr);
+	fattr->f_ino = 0;	/* FIXME: do we need this? */
+
+	p += SMB_STATUS_SIZE;	/* reserved (search_status) */
+	fattr->attr = *p;
+	fattr->f_mtime = date_dos2unix(server, WVAL(p, 3), WVAL(p, 1));
+	fattr->f_size = DVAL(p, 5);
+	fattr->f_ctime = fattr->f_mtime;
+	fattr->f_atime = fattr->f_mtime;
+	qname->name = p + 9;
+	len = strnlen(qname->name, 12);
+
+	/*
+	 * Trim trailing blanks for Pathworks servers
+	 */
+	while (len > 2 && qname->name[len-1] == ' ')
+		len--;
+	qname->len = len;
+
+	smb_finish_dirent(server, fattr);
+
+#if 0
+	/* FIXME: These only work for ascii chars, and recent smbmount doesn't
+	   allow the flag to be set anyway. It kills const. Remove? */
+	switch (server->opt.case_handling) {
+	case SMB_CASE_UPPER:
+		str_upper(entry->name, len);
+		break;
+	case SMB_CASE_LOWER:
+		str_lower(entry->name, len);
+		break;
+	default:
+		break;
+	}
+#endif
+
+	qname->len = 0;
+	len = server->ops->convert(server->name_buf, SMB_MAXNAMELEN,
+			    qname->name, len,
+			    server->remote_nls, server->local_nls);
+	if (len > 0) {
+		qname->len = len;
+		qname->name = server->name_buf;
+		DEBUG1("len=%d, name=%.*s\n",qname->len,qname->len,qname->name);
+	}
+
+	return p + 22;
+}
+
+/*
+ * This routine is used to read in directory entries from the network.
+ * Note that it is for short directory name seeks, i.e.: protocol <
+ * SMB_PROTOCOL_LANMAN2
+ */
+static int
+smb_proc_readdir_short(struct file *filp, void *dirent, filldir_t filldir,
+		       struct smb_cache_control *ctl)
+{
+	struct dentry *dir = filp->f_dentry;
+	struct smb_sb_info *server = server_from_dentry(dir);
+	struct qstr qname;
+	struct smb_fattr fattr;
+	char *p;
+	int result;
+	int i, first, entries_seen, entries;
+	int entries_asked = (server->opt.max_xmit - 100) / SMB_DIRINFO_SIZE;
+	__u16 bcc;
+	__u16 count;
+	char status[SMB_STATUS_SIZE];
+	static struct qstr mask = { "*.*", 3, 0 };
+	unsigned char *last_status;
+
+	VERBOSE("%s/%s\n", DENTRY_PATH(dir));
+
+	smb_lock_server(server);
+
+	first = 1;
+	entries = 0;
+	entries_seen = 2; /* implicit . and .. */
+
+	while (1) {
+		p = smb_setup_header(server, SMBsearch, 2, 0);
+		WSET(server->packet, smb_vwv0, entries_asked);
+		WSET(server->packet, smb_vwv1, aDIR);
+		if (first == 1) {
+			result = smb_simple_encode_path(server, &p, dir, &mask);
+			if (result < 0)
+				goto unlock_return;
+			if (p + 3 > (char*)server->packet+server->packet_size) {
+				result = -ENAMETOOLONG;
+				goto unlock_return;
+			}
+			*p++ = 5;
+			WSET(p, 0, 0);
+			p += 2;
+			first = 0;
+		} else {
+			if (p + 5 + SMB_STATUS_SIZE >
+			    (char*)server->packet + server->packet_size) {
+				result = -ENAMETOOLONG;
+				goto unlock_return;
+			}
+				
+			*p++ = 4;
+			*p++ = 0;
+			*p++ = 5;
+			WSET(p, 0, SMB_STATUS_SIZE);
+			p += 2;
+			memcpy(p, status, SMB_STATUS_SIZE);
+			p += SMB_STATUS_SIZE;
+		}
+
+		smb_setup_bcc(server, p);
+
+		result = smb_request_ok(server, SMBsearch, 1, -1);
+		if (result < 0) {
+			if ((server->rcls == ERRDOS) && 
+			    (server->err  == ERRnofiles))
+				break;
+			if (smb_retry(server)) {
+				ctl->idx = -1;	/* retry */
+				result = 0;
+			}
+			goto unlock_return;
+		}
+		p = SMB_VWV(server->packet);
+		count = WVAL(p, 0);
+		if (count <= 0)
+			break;
+
+		result = -EIO;
+		bcc = WVAL(p, 2);
+		if (bcc != count * SMB_DIRINFO_SIZE + 3)
+			goto unlock_return;
+		p += 7;
+
+
+		/* Make sure the response fits in the buffer. Fixed sized 
+		   entries means we don't have to check in the decode loop. */
+
+		last_status = SMB_BUF(server->packet) + 3 + (count - 1) *
+			SMB_DIRINFO_SIZE;
+
+		if (last_status + SMB_DIRINFO_SIZE >=
+		    server->packet + server->packet_size) {
+			printk(KERN_ERR "smb_proc_readdir_short: "
+			       "last dir entry outside buffer! "
+			       "%d@%p  %d@%p\n", SMB_DIRINFO_SIZE, last_status,
+			       server->packet_size, server->packet);
+			goto unlock_return;
+		}
+
+		/* Read the last entry into the status field. */
+		memcpy(status, last_status, SMB_STATUS_SIZE);
+
+
+		/* Now we are ready to parse smb directory entries. */
+
+		for (i = 0; i < count; i++) {
+			p = smb_decode_short_dirent(server, p, 
+						    &qname, &fattr);
+			if (qname.len == 0)
+				continue;
+			if (entries_seen == 2 && qname.name[0] == '.') {
+				if (qname.len == 1)
+					continue;
+				if (qname.name[1] == '.' && qname.len == 2)
+					continue;
+			}
+			if (!smb_fill_cache(filp, dirent, filldir, ctl, 
+					    &qname, &fattr))
+				;	/* stop reading? */
+			entries_seen++;
+		}
+	}
+	result = entries;
+
+unlock_return:
+	smb_unlock_server(server);
+	return result;
+}
+
+void smb_decode_unix_basic(struct smb_fattr *fattr, char *p)
+{
+	/* FIXME: verify nls support. all is sent as utf8? */
+
+	fattr->f_unix = 1;
+	fattr->f_mode = 0;
+
+	/* FIXME: use the uniqueID from the remote instead? */
+	/* 0 L file size in bytes */
+	/* 8 L file size on disk in bytes (block count) */
+	/* 40 L uid */
+	/* 48 L gid */
+	/* 56 W file type */
+	/* 60 L devmajor */
+	/* 68 L devminor */
+	/* 76 L unique ID (inode) */
+	/* 84 L permissions */
+	/* 92 L link count */
+
+	fattr->f_size = LVAL(p, 0);
+	fattr->f_blocks = LVAL(p, 8);
+	fattr->f_ctime = smb_ntutc2unixutc(LVAL(p, 16));
+	fattr->f_atime = smb_ntutc2unixutc(LVAL(p, 24));
+	fattr->f_mtime = smb_ntutc2unixutc(LVAL(p, 32));
+	fattr->f_uid = LVAL(p, 40); 
+	fattr->f_gid = LVAL(p, 48); 
+	fattr->f_mode |= smb_filetype_to_mode(WVAL(p, 56));
+
+	if (S_ISBLK(fattr->f_mode) || S_ISCHR(fattr->f_mode)) {
+		__u64 major = LVAL(p, 60);
+		__u64 minor = LVAL(p, 68);
+
+		fattr->f_rdev = MKDEV(major & 0xffffffff, minor & 0xffffffff);
+	}
+	fattr->f_mode |= LVAL(p, 84);
+}
+
+/*
+ * Interpret a long filename structure using the specified info level:
+ *   level 1 for anything below NT1 protocol
+ *   level 260 for NT1 protocol
+ *
+ * qname is filled with the decoded, and possibly translated, name
+ * fattr receives decoded attributes.
+ *
+ * Bugs Noted:
+ * (1) Win NT 4.0 appends a null byte to names and counts it in the length!
+ */
+static char *
+smb_decode_long_dirent(struct smb_sb_info *server, char *p, int level,
+		       struct qstr *qname, struct smb_fattr *fattr)
+{
+	char *result;
+	unsigned int len = 0;
+	int n;
+	__u16 date, time;
+
+	/*
+	 * SMB doesn't have a concept of inode numbers ...
+	 */
+	smb_init_dirent(server, fattr);
+	fattr->f_ino = 0;	/* FIXME: do we need this? */
+
+	switch (level) {
+	case 1:
+		len = *((unsigned char *) p + 22);
+		qname->name = p + 23;
+		result = p + 24 + len;
+
+		date = WVAL(p, 0);
+		time = WVAL(p, 2);
+		fattr->f_ctime = date_dos2unix(server, date, time);
+
+		date = WVAL(p, 4);
+		time = WVAL(p, 6);
+		fattr->f_atime = date_dos2unix(server, date, time);
+
+		date = WVAL(p, 8);
+		time = WVAL(p, 10);
+		fattr->f_mtime = date_dos2unix(server, date, time);
+		fattr->f_size = DVAL(p, 12);
+		/* ULONG allocation size */
+		fattr->attr = WVAL(p, 20);
+
+		VERBOSE("info 1 at %p, len=%d, name=%.*s\n",
+			p, len, len, qname->name);
+		break;
+	case 260:
+		result = p + WVAL(p, 0);
+		len = DVAL(p, 60);
+		if (len > 255) len = 255;
+		/* NT4 null terminates */
+		qname->name = p + 94;
+		if (len && qname->name[len-1] == '\0')
+			len--;
+
+		fattr->f_ctime = smb_ntutc2unixutc(LVAL(p, 8));
+		fattr->f_atime = smb_ntutc2unixutc(LVAL(p, 16));
+		fattr->f_mtime = smb_ntutc2unixutc(LVAL(p, 24));
+		/* change time (32) */
+		fattr->f_size = LVAL(p, 40);
+		/* alloc size (48) */
+		fattr->attr = DVAL(p, 56);
+
+		VERBOSE("info 260 at %p, len=%d, name=%.*s\n",
+			p, len, len, qname->name);
+		break;
+	case SMB_FIND_FILE_UNIX:
+		result = p + WVAL(p, 0);
+		qname->name = p + 108;
+
+		len = strlen(qname->name);
+		/* FIXME: should we check the length?? */
+
+		p += 8;
+		smb_decode_unix_basic(fattr, p);
+		VERBOSE("info SMB_FIND_FILE_UNIX at %p, len=%d, name=%.*s\n",
+			p, len, len, qname->name);
+		break;
+	default:
+		PARANOIA("Unknown info level %d\n", level);
+		result = p + WVAL(p, 0);
+		goto out;
+	}
+
+	smb_finish_dirent(server, fattr);
+
+#if 0
+	/* FIXME: These only work for ascii chars, and recent smbmount doesn't
+	   allow the flag to be set anyway. Remove? */
+	switch (server->opt.case_handling) {
+	case SMB_CASE_UPPER:
+		str_upper(qname->name, len);
+		break;
+	case SMB_CASE_LOWER:
+		str_lower(qname->name, len);
+		break;
+	default:
+		break;
+	}
+#endif
+
+	qname->len = 0;
+	n = server->ops->convert(server->name_buf, SMB_MAXNAMELEN,
+			    qname->name, len,
+			    server->remote_nls, server->local_nls);
+	if (n > 0) {
+		qname->len = n;
+		qname->name = server->name_buf;
+	}
+
+out:
+	return result;
+}
+
+/* findfirst/findnext flags */
+#define SMB_CLOSE_AFTER_FIRST (1<<0)
+#define SMB_CLOSE_IF_END (1<<1)
+#define SMB_REQUIRE_RESUME_KEY (1<<2)
+#define SMB_CONTINUE_BIT (1<<3)
+
+/*
+ * Note: samba-2.0.7 (at least) has a very similar routine, cli_list, in
+ * source/libsmb/clilist.c. When looking for smb bugs in the readdir code,
+ * go there for advise.
+ *
+ * Bugs Noted:
+ * (1) When using Info Level 1 Win NT 4.0 truncates directory listings 
+ * for certain patterns of names and/or lengths. The breakage pattern
+ * is completely reproducible and can be toggled by the creation of a
+ * single file. (E.g. echo hi >foo breaks, rm -f foo works.)
+ */
+static int
+smb_proc_readdir_long(struct file *filp, void *dirent, filldir_t filldir,
+		      struct smb_cache_control *ctl)
+{
+	struct dentry *dir = filp->f_dentry;
+	struct smb_sb_info *server = server_from_dentry(dir);
+	struct qstr qname;
+	struct smb_fattr fattr;
+
+	unsigned char *p, *lastname;
+	char *mask, *param = server->temp_buf;
+	__u16 command;
+	int first, entries_seen;
+
+	/* Both NT and OS/2 accept info level 1 (but see note below). */
+	int info_level = 260;
+	const int max_matches = 512;
+
+	unsigned char *resp_data = NULL;
+	unsigned char *resp_param = NULL;
+	int resp_data_len = 0;
+	int resp_param_len = 0;
+	int ff_searchcount = 0;
+	int ff_eos = 0;
+	int ff_lastname = 0;
+	int ff_dir_handle = 0;
+	int loop_count = 0;
+	int mask_len, i, result;
+	static struct qstr star = { "*", 1, 0 };
+
+	/*
+	 * use info level 1 for older servers that don't do 260
+	 */
+	if (server->opt.capabilities & SMB_CAP_UNIX)
+		info_level = SMB_FIND_FILE_UNIX;
+	else if (server->opt.protocol < SMB_PROTOCOL_NT1)
+		info_level = 1;
+
+	smb_lock_server(server);
+
+	/*
+	 * Encode the initial path
+	 */
+	mask = param + 12;
+
+	mask_len = smb_encode_path(server, mask, SMB_MAXPATHLEN+1, dir, &star);
+	if (mask_len < 0) {
+		result = mask_len;
+		goto unlock_return;
+	}
+	mask_len--;	/* mask_len is strlen, not #bytes */
+	first = 1;
+	VERBOSE("starting mask_len=%d, mask=%s\n", mask_len, mask);
+
+	result = 0;
+	entries_seen = 2;
+	ff_eos = 0;
+
+	while (ff_eos == 0) {
+		loop_count += 1;
+		if (loop_count > 10) {
+			printk(KERN_WARNING "smb_proc_readdir_long: "
+			       "Looping in FIND_NEXT??\n");
+			result = -EIO;
+			break;
+		}
+
+		if (first != 0) {
+			command = TRANSACT2_FINDFIRST;
+			WSET(param, 0, aSYSTEM | aHIDDEN | aDIR);
+			WSET(param, 2, max_matches);	/* max count */
+			WSET(param, 4, SMB_CLOSE_IF_END);
+			WSET(param, 6, info_level);
+			DSET(param, 8, 0);
+		} else {
+			command = TRANSACT2_FINDNEXT;
+
+			VERBOSE("handle=0x%X, lastname=%d, mask=%s\n",
+				ff_dir_handle, ff_lastname, mask);
+
+			WSET(param, 0, ff_dir_handle);	/* search handle */
+			WSET(param, 2, max_matches);	/* max count */
+			WSET(param, 4, info_level);
+			DSET(param, 6, 0);
+			WSET(param, 10, SMB_CONTINUE_BIT|SMB_CLOSE_IF_END);
+		}
+
+		result = smb_trans2_request(server, command,
+					    0, NULL, 12 + mask_len + 1, param,
+					    &resp_data_len, &resp_data,
+					    &resp_param_len, &resp_param);
+
+		if (result < 0) {
+			if (smb_retry(server)) {
+				PARANOIA("error=%d, retrying\n", result);
+				ctl->idx = -1;	/* retry */
+				result = 0;
+				goto unlock_return;
+			}
+			PARANOIA("error=%d, breaking\n", result);
+			break;
+		}
+
+		if (server->rcls == ERRSRV && server->err == ERRerror) {
+			/* a damn Win95 bug - sometimes it clags if you 
+			   ask it too fast */
+			current->state = TASK_INTERRUPTIBLE;
+			schedule_timeout(HZ/5);
+			continue;
+                }
+
+		if (server->rcls != 0) {
+			result = smb_errno(server);
+			PARANOIA("name=%s, result=%d, rcls=%d, err=%d\n",
+				 mask, result, server->rcls, server->err);
+			break;
+		}
+
+		/* parse out some important return info */
+		if (first != 0) {
+			ff_dir_handle = WVAL(resp_param, 0);
+			ff_searchcount = WVAL(resp_param, 2);
+			ff_eos = WVAL(resp_param, 4);
+			ff_lastname = WVAL(resp_param, 8);
+		} else {
+			ff_searchcount = WVAL(resp_param, 0);
+			ff_eos = WVAL(resp_param, 2);
+			ff_lastname = WVAL(resp_param, 6);
+		}
+
+		if (ff_searchcount == 0)
+			break;
+
+		/*
+		 * We might need the lastname for continuations.
+		 *
+		 * Note that some servers (win95?) point to the filename and
+		 * others (NT4, Samba using NT1) to the dir entry. We assume
+		 * here that those who do not point to a filename do not need
+		 * this info to continue the listing.
+		 *
+		 * OS/2 needs this and talks infolevel 1
+		 * NetApps want lastname with infolevel 260
+		 * win2k want lastname with infolevel 260, and points to
+		 *       the record not to the name.
+		 * Samba+CifsUnixExt doesn't need lastname.
+		 *
+		 * All are happy if we return the data they point to. So we do.
+		 */
+		mask_len = 0;
+		if (info_level != SMB_FIND_FILE_UNIX &&
+		    ff_lastname > 0 && ff_lastname < resp_data_len) {
+			lastname = resp_data + ff_lastname;
+
+			switch (info_level) {
+			case 260:
+				mask_len = resp_data_len - ff_lastname;
+				break;
+			case 1:
+				/* lastname points to a length byte */
+				mask_len = *lastname++;
+				if (ff_lastname + 1 + mask_len > resp_data_len)
+					mask_len = resp_data_len - ff_lastname - 1;
+				break;
+			}
+
+			/*
+			 * Update the mask string for the next message.
+			 */
+			if (mask_len < 0)
+				mask_len = 0;
+			if (mask_len > 255)
+				mask_len = 255;
+			if (mask_len)
+				strncpy(mask, lastname, mask_len);
+		}
+		mask_len = strnlen(mask, mask_len);
+		VERBOSE("new mask, len=%d@%d of %d, mask=%.*s\n",
+			mask_len, ff_lastname, resp_data_len, mask_len, mask);
+
+		/* Now we are ready to parse smb directory entries. */
+
+		/* point to the data bytes */
+		p = resp_data;
+		for (i = 0; i < ff_searchcount; i++) {
+			/* make sure we stay within the buffer */
+			if (p >= resp_data + resp_data_len) {
+				printk(KERN_ERR "smb_proc_readdir_long: "
+				       "dirent pointer outside buffer! "
+				       "%p  %d@%p  %d@%p\n",
+				       p, resp_data_len, resp_data,
+				       server->packet_size, server->packet);
+				result = -EIO; /* always a comm. error? */
+				goto unlock_return;
+			}
+
+			p = smb_decode_long_dirent(server, p, info_level,
+						   &qname, &fattr);
+			if (qname.len == 0)
+				continue;
+
+			/* ignore . and .. from the server */
+			if (entries_seen == 2 && qname.name[0] == '.') {
+				if (qname.len == 1)
+					continue;
+				if (qname.name[1] == '.' && qname.len == 2)
+					continue;
+			}
+
+			if (!smb_fill_cache(filp, dirent, filldir, ctl, 
+					    &qname, &fattr))
+				;	/* stop reading? */
+			entries_seen++;
+		}
+
+		VERBOSE("received %d entries, eos=%d\n", ff_searchcount,ff_eos);
+
+		first = 0;
+		loop_count = 0;
+	}
+
+unlock_return:
+	smb_unlock_server(server);
+	return result;
+}
+
+/*
+ * This version uses the trans2 TRANSACT2_FINDFIRST message 
+ * to get the attribute data.
+ * Note: called with the server locked.
+ *
+ * Bugs Noted:
+ */
+static int
+smb_proc_getattr_ff(struct smb_sb_info *server, struct dentry *dentry,
+			struct smb_fattr *fattr)
+{
+	char *param = server->temp_buf, *mask = param + 12;
+	__u16 date, time;
+	unsigned char *resp_data = NULL;
+	unsigned char *resp_param = NULL;
+	int resp_data_len = 0;
+	int resp_param_len = 0;
+	int mask_len, result;
+
+retry:
+	mask_len = smb_encode_path(server, mask, SMB_MAXPATHLEN+1, dentry, NULL);
+	if (mask_len < 0) {
+		result = mask_len;
+		goto out;
+	}
+	VERBOSE("name=%s, len=%d\n", mask, mask_len);
+	WSET(param, 0, aSYSTEM | aHIDDEN | aDIR);
+	WSET(param, 2, 1);	/* max count */
+	WSET(param, 4, 1);	/* close after this call */
+	WSET(param, 6, 1);	/* info_level */
+	DSET(param, 8, 0);
+
+	result = smb_trans2_request(server, TRANSACT2_FINDFIRST,
+				    0, NULL, 12 + mask_len, param,
+				    &resp_data_len, &resp_data,
+				    &resp_param_len, &resp_param);
+	if (result < 0)
+	{
+		if (smb_retry(server))
+			goto retry;
+		goto out;
+	}
+	if (server->rcls != 0)
+	{ 
+		result = smb_errno(server);
+#ifdef SMBFS_PARANOIA
+		if (result != -ENOENT)
+			PARANOIA("error for %s, rcls=%d, err=%d\n",
+				 mask, server->rcls, server->err);
+#endif
+		goto out;
+	}
+	/* Make sure we got enough data ... */
+	result = -EINVAL;
+	if (resp_data_len < 22 || WVAL(resp_param, 2) != 1)
+	{
+		PARANOIA("bad result for %s, len=%d, count=%d\n",
+			 mask, resp_data_len, WVAL(resp_param, 2));
+		goto out;
+	}
+
+	/*
+	 * Decode the response into the fattr ...
+	 */
+	date = WVAL(resp_data, 0);
+	time = WVAL(resp_data, 2);
+	fattr->f_ctime = date_dos2unix(server, date, time);
+
+	date = WVAL(resp_data, 4);
+	time = WVAL(resp_data, 6);
+	fattr->f_atime = date_dos2unix(server, date, time);
+
+	date = WVAL(resp_data, 8);
+	time = WVAL(resp_data, 10);
+	fattr->f_mtime = date_dos2unix(server, date, time);
+	VERBOSE("name=%s, date=%x, time=%x, mtime=%ld\n",
+		mask, date, time, fattr->f_mtime);
+	fattr->f_size = DVAL(resp_data, 12);
+	/* ULONG allocation size */
+	fattr->attr = WVAL(resp_data, 20);
+	result = 0;
+
+out:
+	return result;
+}
+
+/*
+ * Note: called with the server locked.
+ */
+static int
+smb_proc_getattr_core(struct smb_sb_info *server, struct dentry *dir,
+		      struct smb_fattr *fattr)
+{
+	int result;
+	char *p;
+
+      retry:
+	p = smb_setup_header(server, SMBgetatr, 0, 0);
+	result = smb_simple_encode_path(server, &p, dir, NULL);
+	if (result < 0)
+		goto out;
+	smb_setup_bcc(server, p);
+
+	if ((result = smb_request_ok(server, SMBgetatr, 10, 0)) < 0)
+	{
+		if (smb_retry(server))
+			goto retry;
+		goto out;
+	}
+	fattr->attr    = WVAL(server->packet, smb_vwv0);
+	fattr->f_mtime = local2utc(server, DVAL(server->packet, smb_vwv1));
+	fattr->f_size  = DVAL(server->packet, smb_vwv3);
+	fattr->f_ctime = fattr->f_mtime; 
+	fattr->f_atime = fattr->f_mtime; 
+#ifdef SMBFS_DEBUG_TIMESTAMP
+	printk("getattr_core: %s/%s, mtime=%ld\n",
+	       DENTRY_PATH(dir), fattr->f_mtime);
+#endif
+	result = 0;
+
+out:
+	return result;
+}
+
+/*
+ * Note: called with the server locked.
+ */
+static int
+smb_proc_getattr_trans2_all(struct smb_sb_info *server, struct dentry *dir,
+			    struct smb_fattr *attr)
+{
+	char *p, *param = server->temp_buf;
+	unsigned char *resp_data = NULL;
+	unsigned char *resp_param = NULL;
+	int resp_data_len = 0;
+	int resp_param_len = 0;
+	int result;
+
+      retry:
+	WSET(param, 0, SMB_QUERY_FILE_ALL_INFO);
+	DSET(param, 2, 0);
+	result = smb_encode_path(server, param+6, SMB_MAXPATHLEN+1, dir, NULL);
+	if (result < 0)
+		goto out;
+	p = param + 6 + result;
+
+	result = smb_trans2_request(server, TRANSACT2_QPATHINFO,
+				    0, NULL, p - param, param,
+				    &resp_data_len, &resp_data,
+				    &resp_param_len, &resp_param);
+	if (result < 0) {
+		if (smb_retry(server))
+			goto retry;
+		goto out;
+	}
+	if (server->rcls != 0) {
+		VERBOSE("for %s: result=%d, rcls=%d, err=%d\n",
+			&param[6], result, server->rcls, server->err);
+		result = smb_errno(server);
+		goto out;
+	}
+
+	result = -ENOENT;
+	if (resp_data_len < 56) {
+		PARANOIA("not enough data for %s, len=%d\n",
+			 &param[6], resp_data_len);
+		goto out;
+	}
+
+	attr->f_ctime = smb_ntutc2unixutc(LVAL(resp_data, 0));
+	attr->f_atime = smb_ntutc2unixutc(LVAL(resp_data, 8));
+	attr->f_mtime = smb_ntutc2unixutc(LVAL(resp_data, 16));
+	/* change (24) */
+	attr->attr = WVAL(resp_data, 32);
+	/* pad? (34) */
+	/* allocated size (40) */
+	attr->f_size = LVAL(resp_data, 48);
+	result = 0;
+
+out:
+	return result;
+}
+
+/*
+ * Note: called with the server locked.
+ *
+ * Bugs Noted:
+ * (1) Win 95 swaps the date and time fields in the standard info level.
+ */
+static int
+smb_proc_getattr_trans2_std(struct smb_sb_info *server, struct dentry *dir,
+			struct smb_fattr *attr)
+{
+	char *p, *param = server->temp_buf;
+	__u16 date, time;
+	int off_date = 0, off_time = 2;
+	unsigned char *resp_data = NULL;
+	unsigned char *resp_param = NULL;
+	int resp_data_len = 0;
+	int resp_param_len = 0;
+	int result;
+
+      retry:
+	WSET(param, 0, SMB_INFO_STANDARD);
+	DSET(param, 2, 0);
+	result = smb_encode_path(server, param+6, SMB_MAXPATHLEN+1, dir, NULL);
+	if (result < 0)
+		goto out;
+	p = param + 6 + result;
+
+	result = smb_trans2_request(server, TRANSACT2_QPATHINFO,
+				    0, NULL, p - param, param,
+				    &resp_data_len, &resp_data,
+				    &resp_param_len, &resp_param);
+	if (result < 0)
+	{
+		if (smb_retry(server))
+			goto retry;
+		goto out;
+	}
+	if (server->rcls != 0)
+	{
+		VERBOSE("for %s: result=%d, rcls=%d, err=%d\n",
+			&param[6], result, server->rcls, server->err);
+		result = smb_errno(server);
+		goto out;
+	}
+
+	result = -ENOENT;
+	if (resp_data_len < 22)
+	{
+		PARANOIA("not enough data for %s, len=%d\n",
+			 &param[6], resp_data_len);
+		goto out;
+	}
+
+	/*
+	 * Kludge alert: Win 95 swaps the date and time field,
+	 * contrary to the CIFS docs and Win NT practice.
+	 */
+	if (server->mnt->flags & SMB_MOUNT_WIN95) {
+		off_date = 2;
+		off_time = 0;
+	}
+	date = WVAL(resp_data, off_date);
+	time = WVAL(resp_data, off_time);
+	attr->f_ctime = date_dos2unix(server, date, time);
+
+	date = WVAL(resp_data, 4 + off_date);
+	time = WVAL(resp_data, 4 + off_time);
+	attr->f_atime = date_dos2unix(server, date, time);
+
+	date = WVAL(resp_data, 8 + off_date);
+	time = WVAL(resp_data, 8 + off_time);
+	attr->f_mtime = date_dos2unix(server, date, time);
+#ifdef SMBFS_DEBUG_TIMESTAMP
+	printk(KERN_DEBUG "getattr_trans2: %s/%s, date=%x, time=%x, mtime=%ld\n",
+	       DENTRY_PATH(dir), date, time, attr->f_mtime);
+#endif
+	attr->f_size = DVAL(resp_data, 12);
+	attr->attr = WVAL(resp_data, 20);
+	result = 0;
+
+out:
+	return result;
+}
+
+static int
+smb_proc_getattr_95(struct smb_sb_info *server, struct dentry *dir,
+		    struct smb_fattr *attr)
+{
+	struct inode *inode = dir->d_inode;
+	int result;
+
+retry:
+	result = smb_proc_getattr_trans2_std(server, dir, attr);
+	if (result < 0) {
+		if (server->rcls == ERRSRV && server->err == ERRerror) {
+			/* a damn Win95 bug - sometimes it clags if you 
+			   ask it too fast */
+			current->state = TASK_INTERRUPTIBLE;
+			schedule_timeout(HZ/5);
+			goto retry;
+		}
+		goto out;
+	}
+
+	/*
+	 * None of the other getattr versions here can make win9x
+	 * return the right filesize if there are changes made to an
+	 * open file.  A seek-to-end does return the right size, but
+	 * we only need to do that on files we have written.
+	 */
+	if (inode && inode->u.smbfs_i.flags & SMB_F_LOCALWRITE &&
+	    smb_is_open(inode))
+	{
+		__u16 fileid = inode->u.smbfs_i.fileid;
+		attr->f_size = smb_proc_seek(server, fileid, 2, 0);
+	}
+
+out:
+	return result;
+}
+
+/*
+ * Note: called with the server locked.
+ */
+static int
+smb_proc_getattr_unix(struct smb_sb_info *server, struct dentry *dir,
+		      struct smb_fattr *attr)
+{
+	char *p, *param = server->temp_buf;
+	unsigned char *resp_data = NULL;
+	unsigned char *resp_param = NULL;
+	int resp_data_len = 0;
+	int resp_param_len = 0;
+	int result;
+
+      retry:
+	WSET(param, 0, SMB_QUERY_FILE_UNIX_BASIC);
+	DSET(param, 2, 0);
+	result = smb_encode_path(server, param+6, SMB_MAXPATHLEN+1, dir, NULL);
+	if (result < 0)
+		goto out;
+	p = param + 6 + result;
+
+	result = smb_trans2_request(server, TRANSACT2_QPATHINFO,
+				    0, NULL, p - param, param,
+				    &resp_data_len, &resp_data,
+				    &resp_param_len, &resp_param);
+	if (result < 0) {
+		if (smb_retry(server))
+			goto retry;
+		goto out;
+	}
+	if (server->rcls != 0) {
+		VERBOSE("for %s: result=%d, rcls=%d, err=%d\n",
+			&param[6], result, server->rcls, server->err);
+		result = smb_errno(server);
+		goto out;
+	}
+
+	smb_decode_unix_basic(attr, resp_data);
+	result = 0;
+
+out:
+	return result;
+}
+
+static int
+smb_proc_getattr_null(struct smb_sb_info *server, struct dentry *dir,
+		      struct smb_fattr *attr)
+{
+	return -EIO;
+}
+
+int
+smb_proc_getattr(struct dentry *dir, struct smb_fattr *fattr)
+{
+	struct smb_sb_info *server = server_from_dentry(dir);
+	int result;
+
+	smb_lock_server(server);
+	smb_init_dirent(server, fattr);
+	result = server->ops->getattr(server, dir, fattr);
+	smb_finish_dirent(server, fattr);
+	smb_unlock_server(server);
+	return result;
+}
+
+
+/*
+ * Called with the server locked. Because of bugs in the
+ * core protocol, we use this only to set attributes. See
+ * smb_proc_settime() below for timestamp handling.
+ *
+ * Bugs Noted:
+ * (1) If mtime is non-zero, both Win 3.1 and Win 95 fail
+ * with an undocumented error (ERRDOS code 50). Setting
+ * mtime to 0 allows the attributes to be set.
+ * (2) The extra parameters following the name string aren't
+ * in the CIFS docs, but seem to be necessary for operation.
+ */
+static int
+smb_proc_setattr_core(struct smb_sb_info *server, struct dentry *dentry,
+		      __u16 attr)
+{
+	char *p;
+	int result;
+
+      retry:
+	p = smb_setup_header(server, SMBsetatr, 8, 0);
+	WSET(server->packet, smb_vwv0, attr);
+	DSET(server->packet, smb_vwv1, 0); /* mtime */
+	WSET(server->packet, smb_vwv3, 0); /* reserved values */
+	WSET(server->packet, smb_vwv4, 0);
+	WSET(server->packet, smb_vwv5, 0);
+	WSET(server->packet, smb_vwv6, 0);
+	WSET(server->packet, smb_vwv7, 0);
+	result = smb_simple_encode_path(server, &p, dentry, NULL);
+	if (result < 0)
+		goto out;
+	if (p + 2 > (char *)server->packet + server->packet_size) {
+		result = -ENAMETOOLONG;
+		goto out;
+	}
+	*p++ = 4;
+	*p++ = 0;
+	smb_setup_bcc(server, p);
+
+	result = smb_request_ok(server, SMBsetatr, 0, 0);
+	if (result < 0) {
+		if (smb_retry(server))
+			goto retry;
+		goto out;
+	}
+	result = 0;
+out:
+	return result;
+}
+
+/*
+ * Because of bugs in the trans2 setattr messages, we must set
+ * attributes and timestamps separately. The core SMBsetatr
+ * message seems to be the only reliable way to set attributes.
+ */
+int
+smb_proc_setattr(struct dentry *dir, struct smb_fattr *fattr)
+{
+	struct smb_sb_info *server = server_from_dentry(dir);
+	int result;
+
+	VERBOSE("setting %s/%s, open=%d\n", 
+		DENTRY_PATH(dir), smb_is_open(dir->d_inode));
+	smb_lock_server(server);
+	result = smb_proc_setattr_core(server, dir, fattr->attr);
+	smb_unlock_server(server);
+	return result;
+}
+
+/*
+ * Called with the server locked. Sets the timestamps for an
+ * file open with write permissions.
+ */
+static int
+smb_proc_setattr_ext(struct smb_sb_info *server,
+		      struct inode *inode, struct smb_fattr *fattr)
+{
+	__u16 date, time;
+	int result;
+
+      retry:
+	smb_setup_header(server, SMBsetattrE, 7, 0);
+	WSET(server->packet, smb_vwv0, inode->u.smbfs_i.fileid);
+	/* We don't change the creation time */
+	WSET(server->packet, smb_vwv1, 0);
+	WSET(server->packet, smb_vwv2, 0);
+	date_unix2dos(server, fattr->f_atime, &date, &time);
+	WSET(server->packet, smb_vwv3, date);
+	WSET(server->packet, smb_vwv4, time);
+	date_unix2dos(server, fattr->f_mtime, &date, &time);
+	WSET(server->packet, smb_vwv5, date);
+	WSET(server->packet, smb_vwv6, time);
+#ifdef SMBFS_DEBUG_TIMESTAMP
+	printk(KERN_DEBUG "smb_proc_setattr_ext: date=%d, time=%d, mtime=%ld\n",
+	       date, time, fattr->f_mtime);
+#endif
+
+	result = smb_request_ok(server, SMBsetattrE, 0, 0);
+	if (result < 0) {
+		if (smb_retry(server))
+			goto retry;
+		goto out;
+	}
+	result = 0;
+out:
+	return result;
+}
+
+/*
+ * Note: called with the server locked.
+ *
+ * Bugs Noted:
+ * (1) The TRANSACT2_SETPATHINFO message under Win NT 4.0 doesn't
+ * set the file's attribute flags.
+ */
+static int
+smb_proc_setattr_trans2(struct smb_sb_info *server,
+			struct dentry *dir, struct smb_fattr *fattr)
+{
+	__u16 date, time;
+	char *p, *param = server->temp_buf;
+	unsigned char *resp_data = NULL;
+	unsigned char *resp_param = NULL;
+	int resp_data_len = 0;
+	int resp_param_len = 0;
+	int result;
+	char data[26];
+
+      retry:
+	WSET(param, 0, 1);	/* Info level SMB_INFO_STANDARD */
+	DSET(param, 2, 0);
+	result = smb_encode_path(server, param+6, SMB_MAXPATHLEN+1, dir, NULL);
+	if (result < 0)
+		goto out;
+	p = param + 6 + result;
+
+	WSET(data, 0, 0); /* creation time */
+	WSET(data, 2, 0);
+	date_unix2dos(server, fattr->f_atime, &date, &time);
+	WSET(data, 4, date);
+	WSET(data, 6, time);
+	date_unix2dos(server, fattr->f_mtime, &date, &time);
+	WSET(data, 8, date);
+	WSET(data, 10, time);
+#ifdef SMBFS_DEBUG_TIMESTAMP
+	printk(KERN_DEBUG "setattr_trans2: %s/%s, date=%x, time=%x, mtime=%ld\n", 
+	       DENTRY_PATH(dir), date, time, fattr->f_mtime);
+#endif
+	DSET(data, 12, 0); /* size */
+	DSET(data, 16, 0); /* blksize */
+	WSET(data, 20, 0); /* attr */
+	DSET(data, 22, 0); /* ULONG EA size */
+
+	result = smb_trans2_request(server, TRANSACT2_SETPATHINFO,
+				    26, data, p - param, param,
+				    &resp_data_len, &resp_data,
+				    &resp_param_len, &resp_param);
+	if (result < 0)
+	{
+		if (smb_retry(server))
+			goto retry;
+		goto out;
+	}
+	result = 0;
+	if (server->rcls != 0)
+		result = smb_errno(server);
+
+out:
+	return result;
+}
+
+/*
+ * ATTR_MODE      0x001
+ * ATTR_UID       0x002
+ * ATTR_GID       0x004
+ * ATTR_SIZE      0x008
+ * ATTR_ATIME     0x010
+ * ATTR_MTIME     0x020
+ * ATTR_CTIME     0x040
+ * ATTR_ATIME_SET 0x080
+ * ATTR_MTIME_SET 0x100
+ * ATTR_FORCE     0x200
+ * ATTR_ATTR_FLAG 0x400
+ *
+ * major/minor should only be set by mknod.
+ */
+int
+smb_proc_setattr_unix(struct dentry *dentry, struct iattr *attr,
+		      unsigned int major, unsigned int minor)
+{
+	struct smb_sb_info *server = server_from_dentry(dentry);
+	u64 nttime;
+	char *p, *param;
+	unsigned char *resp_data = NULL;
+	unsigned char *resp_param = NULL;
+	int resp_data_len = 0;
+	int resp_param_len = 0;
+	int result;
+	char data[100];
+
+	smb_lock_server(server);
+	param = server->temp_buf;
+
+	DEBUG1("valid flags = 0x%04x\n", attr->ia_valid);
+
+retry:
+	WSET(param, 0, SMB_SET_FILE_UNIX_BASIC);
+	DSET(param, 2, 0);
+	result = smb_encode_path(server, param + 6, SMB_MAXPATHLEN+1, dentry, NULL);
+	if (result < 0)
+		goto out;
+	p = param + 6 + result;
+
+	/* 0 L file size in bytes */
+	/* 8 L file size on disk in bytes (block count) */
+	/* 40 L uid */
+	/* 48 L gid */
+	/* 56 W file type enum */
+	/* 60 L devmajor */
+	/* 68 L devminor */
+	/* 76 L unique ID (inode) */
+	/* 84 L permissions */
+	/* 92 L link count */
+	LSET(data, 0, SMB_SIZE_NO_CHANGE);
+	LSET(data, 8, SMB_SIZE_NO_CHANGE);
+	LSET(data, 16, SMB_TIME_NO_CHANGE);
+	LSET(data, 24, SMB_TIME_NO_CHANGE);
+	LSET(data, 32, SMB_TIME_NO_CHANGE);
+	LSET(data, 40, SMB_UID_NO_CHANGE);
+	LSET(data, 48, SMB_GID_NO_CHANGE);
+	LSET(data, 56, smb_filetype_from_mode(attr->ia_mode));
+	LSET(data, 60, major);
+	LSET(data, 68, minor);
+	LSET(data, 76, 0);
+	LSET(data, 84, SMB_MODE_NO_CHANGE);
+	LSET(data, 92, 0);
+
+	if (attr->ia_valid & ATTR_SIZE) {
+		LSET(data, 0, attr->ia_size);
+		LSET(data, 8, 0); /* can't set anyway */
+	}
+
+	/*
+	 * FIXME: check the conversion function it the correct one
+	 *
+	 * we can't set ctime but we might as well pass this to the server
+	 * and let it ignore it.
+	 */
+	if (attr->ia_valid & ATTR_CTIME) {
+		nttime = smb_unixutc2ntutc(attr->ia_ctime);
+		LSET(data, 16, nttime);
+	}
+	if (attr->ia_valid & ATTR_ATIME) {
+		nttime = smb_unixutc2ntutc(attr->ia_atime);
+		LSET(data, 24, nttime);
+	}
+	if (attr->ia_valid & ATTR_MTIME) {
+		nttime = smb_unixutc2ntutc(attr->ia_mtime);
+		LSET(data, 32, nttime);
+	}
+
+	if (attr->ia_valid & ATTR_UID) {
+		LSET(data, 40, attr->ia_uid);
+	}
+	if (attr->ia_valid & ATTR_GID) {
+		LSET(data, 48, attr->ia_gid); 
+	}
+
+	if (attr->ia_valid & ATTR_MODE) {
+		LSET(data, 84, attr->ia_mode);
+	}
+
+	result = smb_trans2_request(server, TRANSACT2_SETPATHINFO,
+				    sizeof(data), data, p - param, param,
+				    &resp_data_len, &resp_data,
+				    &resp_param_len, &resp_param);
+	if (result < 0)
+	{
+		if (smb_retry(server))
+			goto retry;
+		goto out;
+	}
+	result = 0;
+	if (server->rcls != 0)
+		result = smb_errno(server);
+
+out:
+	smb_unlock_server(server);
+	return result;
+}
+
+/*
+ * Set the modify and access timestamps for a file.
+ *
+ * Incredibly enough, in all of SMB there is no message to allow
+ * setting both attributes and timestamps at once. 
+ *
+ * Bugs Noted:
+ * (1) Win 95 doesn't support the TRANSACT2_SETFILEINFO message 
+ * with info level 1 (INFO_STANDARD).
+ * (2) Win 95 seems not to support setting directory timestamps.
+ * (3) Under the core protocol apparently the only way to set the
+ * timestamp is to open and close the file.
+ */
+int
+smb_proc_settime(struct dentry *dentry, struct smb_fattr *fattr)
+{
+	struct smb_sb_info *server = server_from_dentry(dentry);
+	struct inode *inode = dentry->d_inode;
+	int result;
+
+	VERBOSE("setting %s/%s, open=%d\n",
+		DENTRY_PATH(dentry), smb_is_open(inode));
+
+	smb_lock_server(server);
+	/* setting the time on a Win95 server fails (tridge) */
+	if (server->opt.protocol >= SMB_PROTOCOL_LANMAN2 && 
+	    !(server->mnt->flags & SMB_MOUNT_WIN95)) {
+		if (smb_is_open(inode) &&
+		    inode->u.smbfs_i.access != SMB_O_RDONLY)
+			result = smb_proc_setattr_ext(server, inode, fattr);
+		else
+			result = smb_proc_setattr_trans2(server, dentry, fattr);
+	} else {
+		/*
+		 * Fail silently on directories ... timestamp can't be set?
+		 */
+		result = 0;
+		if (S_ISREG(inode->i_mode)) {
+			/*
+			 * Set the mtime by opening and closing the file.
+			 * Note that the file is opened read-only, but this
+			 * still allows us to set the date (tridge)
+			 */
+			result = -EACCES;
+			if (!smb_is_open(inode))
+				smb_proc_open(server, dentry, SMB_O_RDONLY);
+			if (smb_is_open(inode)) {
+				inode->i_mtime = fattr->f_mtime;
+				result = smb_proc_close_inode(server, inode);
+			}
+		}
+	}
+
+	smb_unlock_server(server);
+	return result;
+}
+
+int
+smb_proc_dskattr(struct super_block *sb, struct statfs *attr)
+{
+	struct smb_sb_info *server = &(sb->u.smbfs_sb);
+	int result;
+	char *p;
+	long unit;
+
+	smb_lock_server(server);
+
+      retry:
+	smb_setup_header(server, SMBdskattr, 0, 0);
+
+	if ((result = smb_request_ok(server, SMBdskattr, 5, 0)) < 0) {
+		if (smb_retry(server))
+			goto retry;
+		goto out;
+	}
+	p = SMB_VWV(server->packet);
+	unit = (WVAL(p, 2) * WVAL(p, 4)) >> SMB_ST_BLKSHIFT;
+	attr->f_blocks = WVAL(p, 0) * unit;
+	attr->f_bsize  = SMB_ST_BLKSIZE;
+	attr->f_bavail = attr->f_bfree = WVAL(p, 6) * unit;
+	result = 0;
+
+out:
+	smb_unlock_server(server);
+	return result;
+}
+
+int
+smb_proc_read_link(struct smb_sb_info *server, struct dentry *dentry,
+		   char *buffer, int len)
+{
+	char *p, *param = server->temp_buf;
+	unsigned char *resp_data = NULL;
+	unsigned char *resp_param = NULL;
+	int resp_data_len = 0;
+	int resp_param_len = 0;
+	int result;
+
+	DEBUG1("readlink of %s/%s\n", DENTRY_PATH(dentry));
+
+	smb_lock_server(server);
+  retry:
+	WSET(param, 0, SMB_QUERY_FILE_UNIX_LINK);
+	DSET(param, 2, 0);
+	result = smb_encode_path(server, param + 6, SMB_MAXPATHLEN+1, dentry, NULL);
+	if (result < 0)
+		goto out;
+	p = param + 6 + result;
+
+	result = smb_trans2_request(server, TRANSACT2_QPATHINFO,
+				    0, NULL, p - param, param,
+				    &resp_data_len, &resp_data,
+				    &resp_param_len, &resp_param);
+	DEBUG1("for %s: result=%d, rcls=%d, err=%d\n",
+		&param[6], result, server->rcls, server->err);
+	if (result < 0) {
+		if (smb_retry(server))
+			goto retry;
+		goto out;
+	}
+	if (server->rcls != 0) {
+		VERBOSE("for %s: result=%d, rcls=%d, err=%d\n",
+			&param[6], result, server->rcls, server->err);
+		result = smb_errno(server);
+		goto out;
+	}
+
+	/* copy data up to the \0 or buffer length */
+	result = len;
+	if (resp_data_len < len)
+		result = resp_data_len;
+	strncpy(buffer, resp_data, result);
+
+out:
+	smb_unlock_server(server);
+	return result;
+}
+
+
+/*
+ * Create a symlink object called dentry which points to oldpath.
+ * Samba does not permit dangling links but returns a suitable error message.
+ */
+int
+smb_proc_symlink(struct smb_sb_info *server, struct dentry *dentry,
+		 const char *oldpath)
+{
+	char *p, *param = server->temp_buf;
+	unsigned char *resp_data = NULL;
+	unsigned char *resp_param = NULL;
+	int resp_data_len = 0;
+	int resp_param_len = 0;
+	int result;
+
+	smb_lock_server(server);
+  retry:
+	WSET(param, 0, SMB_SET_FILE_UNIX_LINK);
+	DSET(param, 2, 0);
+	result = smb_encode_path(server, param + 6, SMB_MAXPATHLEN+1, dentry, NULL);
+	if (result < 0)
+		goto out;
+	p = param + 6 + result;
+
+	result = smb_trans2_request(server, TRANSACT2_SETPATHINFO,
+				    strlen(oldpath) + 1,
+				    (char *)oldpath, p - param, param,
+				    &resp_data_len, &resp_data,
+				    &resp_param_len, &resp_param);
+	DEBUG1("for %s: result=%d, rcls=%d, err=%d\n",
+		&param[6], result, server->rcls, server->err);
+	if (result < 0) {
+		if (smb_retry(server))
+			goto retry;
+		goto out;
+	}
+	if (server->rcls != 0) {
+		VERBOSE("for %s: result=%d, rcls=%d, err=%d\n",
+			&param[6], result, server->rcls, server->err);
+		result = smb_errno(server);
+		goto out;
+	}
+
+	result = 0;
+
+out:
+	smb_unlock_server(server);
+	return result;
+}
+
+/*
+ * Create a hard link object called new_dentry which points to dentry.
+ */
+int
+smb_proc_link(struct smb_sb_info *server, struct dentry *dentry,
+	      struct dentry *new_dentry)
+{
+	char *p, *param = server->temp_buf;
+	unsigned char *resp_data = NULL;
+	unsigned char *resp_param = NULL;
+	int resp_data_len = 0;
+	int resp_param_len = 0;
+	int result;
+	int newpathlen = 0;
+	char newpath[SMB_MAXPATHLEN+1];		/* FIXME: ugh! */
+
+	smb_lock_server(server);
+
+	newpathlen = smb_encode_path(server, newpath, SMB_MAXPATHLEN+1, dentry, NULL);
+
+	DEBUG1("newpathlen = %d newpath=\"%s\"\n", newpathlen, newpath);
+retry:
+	WSET(param, 0, SMB_SET_FILE_UNIX_HLINK);
+	DSET(param, 2, 0);
+	result = smb_encode_path(server, param + 6, SMB_MAXPATHLEN+1, new_dentry, NULL);
+	if (result < 0)
+		goto out;
+	p = param + 6 + result;
+	DEBUG1("pathlen = %d oldpath=\"%s\"\n", result, param + 6);
+
+
+	result = smb_trans2_request(server, TRANSACT2_SETPATHINFO,
+				    newpathlen + 1,
+				    (char *)newpath, p - param, param,
+				    &resp_data_len, &resp_data,
+				    &resp_param_len, &resp_param);
+	DEBUG1("for %s: result=%d, rcls=%d, err=%d\n",
+               &param[6], result, server->rcls, server->err);
+	if (result < 0) {
+		if (smb_retry(server))
+			goto retry;
+		goto out;
+	}
+	if (server->rcls != 0) {
+		VERBOSE("for %s: result=%d, rcls=%d, err=%d\n",
+			&param[6], result, server->rcls, server->err);
+		result = smb_errno(server);
+		goto out;
+	}
+
+	result = 0;
+
+out:
+	smb_unlock_server(server);
+	return result;
+}
+
+/*
+ * We are called with the server locked
+ */
+static int
+smb_proc_query_cifsunix(struct smb_sb_info *server)
+{
+	char *param = server->temp_buf;
+	unsigned char *resp_data = NULL;
+	unsigned char *resp_param = NULL;
+	int resp_data_len = 0;
+	int resp_param_len = 0;
+	int result;
+	int major, minor;
+	u64 caps;
+
+  retry:
+	WSET(param, 0, SMB_QUERY_CIFS_UNIX_INFO);
+	result = smb_trans2_request(server, TRANSACT2_QFSINFO,
+				    0, NULL, 2, param,
+				    &resp_data_len, &resp_data,
+				    &resp_param_len, &resp_param);
+	if (result < 0) {
+		if (smb_retry(server))
+			goto retry;
+		goto out;
+	}
+
+	if (resp_data_len < 12) {
+		PARANOIA("Not enough data\n");
+		goto out;
+	}
+
+	major = WVAL(resp_data, 0);
+	minor = WVAL(resp_data, 2);
+	VERBOSE("Server implements CIFS Extensions for UNIX systems v%d.%d\n",
+		major, minor);
+	/* FIXME: verify that we are ok with this major/minor? */
+
+	caps = LVAL(resp_data, 4);
+	DEBUG1("Server capabilities 0x%016llx\n", caps);
+
+out:
+	return result;
+}
+
+
+static void
+install_ops(struct smb_ops *dst, struct smb_ops *src)
+{
+	memcpy(dst, src, sizeof(void *) * SMB_OPS_NUM_STATIC);
+}
+
+/* < LANMAN2 */
+static struct smb_ops smb_ops_core =
+{
+	.read           = smb_proc_read,
+	.write          = smb_proc_write,
+	.readdir        = smb_proc_readdir_short,
+	.getattr        = smb_proc_getattr_core,
+	.truncate       = smb_proc_trunc32,
+};
+
+/* LANMAN2, OS/2, others? */
+static struct smb_ops smb_ops_os2 =
+{
+	.read           = smb_proc_read,
+	.write          = smb_proc_write,
+	.readdir        = smb_proc_readdir_long,
+	.getattr        = smb_proc_getattr_trans2_std,
+	.truncate       = smb_proc_trunc32,
+};
+
+/* Win95, and possibly some NetApp versions too */
+static struct smb_ops smb_ops_win95 =
+{
+	.read           = smb_proc_read,    /* does not support 12word readX */
+	.write          = smb_proc_write,
+	.readdir        = smb_proc_readdir_long,
+	.getattr        = smb_proc_getattr_95,
+	.truncate       = smb_proc_trunc95,
+};
+
+/* Samba, NT4 and NT5 */
+static struct smb_ops smb_ops_winNT =
+{
+	.read           = smb_proc_readX,
+	.write          = smb_proc_writeX,
+	.readdir        = smb_proc_readdir_long,
+	.getattr        = smb_proc_getattr_trans2_all,
+	.truncate       = smb_proc_trunc64,
+};
+
+/* Samba w/ unix extensions. Others? */
+static struct smb_ops smb_ops_unix =
+{
+	.read           = smb_proc_readX,
+	.write          = smb_proc_writeX,
+	.readdir        = smb_proc_readdir_long,
+	.getattr        = smb_proc_getattr_unix,
+	.truncate       = smb_proc_trunc64,
+};
+
+/* Place holder until real ops are in place */
+static struct smb_ops smb_ops_null =
+{
+	.getattr        = smb_proc_getattr_null,
+};
+
+void smb_install_null_ops(struct smb_ops *ops)
+{
+	install_ops(ops, &smb_ops_null);
+}
diff --git a/fs/smbfs/proto.h b/fs/smbfs/proto.h
new file mode 100644
index 00000000000000..56d528e6a08762
--- /dev/null
+++ b/fs/smbfs/proto.h
@@ -0,0 +1,71 @@
+/*
+ *  Autogenerated with cproto on:  Sat Jan 24 14:28:52 CET 2004
+ */
+
+/* proc.c */
+extern int smb_setcodepage(struct smb_sb_info *server, struct smb_nls_codepage *cp);
+extern __u32 smb_len(__u8 *p);
+extern int smb_get_rsize(struct smb_sb_info *server);
+extern int smb_get_wsize(struct smb_sb_info *server);
+extern int smb_errno(struct smb_sb_info *server);
+extern int smb_newconn(struct smb_sb_info *server, struct smb_conn_opt *opt);
+extern int smb_wakeup(struct smb_sb_info *server);
+extern __u8 *smb_setup_header(struct smb_sb_info *server, __u8 command, __u16 wct, __u16 bcc);
+extern int smb_open(struct dentry *dentry, int wish);
+extern int smb_close(struct inode *ino);
+extern int smb_close_fileid(struct dentry *dentry, __u16 fileid);
+extern int smb_proc_create(struct dentry *dentry, __u16 attr, time_t ctime, __u16 *fileid);
+extern int smb_proc_mv(struct dentry *old_dentry, struct dentry *new_dentry);
+extern int smb_proc_mkdir(struct dentry *dentry);
+extern int smb_proc_rmdir(struct dentry *dentry);
+extern int smb_proc_unlink(struct dentry *dentry);
+extern int smb_proc_flush(struct smb_sb_info *server, __u16 fileid);
+extern void smb_init_root_dirent(struct smb_sb_info *server, struct smb_fattr *fattr);
+extern void smb_decode_unix_basic(struct smb_fattr *fattr, char *p);
+extern int smb_proc_getattr(struct dentry *dir, struct smb_fattr *fattr);
+extern int smb_proc_setattr(struct dentry *dir, struct smb_fattr *fattr);
+extern int smb_proc_setattr_unix(struct dentry *dentry, struct iattr *attr, unsigned int major, unsigned int minor);
+extern int smb_proc_settime(struct dentry *dentry, struct smb_fattr *fattr);
+extern int smb_proc_dskattr(struct super_block *sb, struct statfs *attr);
+extern int smb_proc_read_link(struct smb_sb_info *server, struct dentry *dentry, char *buffer, int len);
+extern int smb_proc_symlink(struct smb_sb_info *server, struct dentry *dentry, const char *oldpath);
+extern int smb_proc_link(struct smb_sb_info *server, struct dentry *dentry, struct dentry *new_dentry);
+extern void smb_install_null_ops(struct smb_ops *ops);
+/* dir.c */
+extern struct file_operations smb_dir_operations;
+extern struct inode_operations smb_dir_inode_operations;
+extern struct inode_operations smb_dir_inode_operations_unix;
+extern void smb_new_dentry(struct dentry *dentry);
+extern void smb_renew_times(struct dentry *dentry);
+/* cache.c */
+extern void smb_invalid_dir_cache(struct inode *dir);
+extern void smb_invalidate_dircache_entries(struct dentry *parent);
+extern struct dentry *smb_dget_fpos(struct dentry *dentry, struct dentry *parent, unsigned long fpos);
+extern int smb_fill_cache(struct file *filp, void *dirent, filldir_t filldir, struct smb_cache_control *ctrl, struct qstr *qname, struct smb_fattr *entry);
+/* sock.c */
+extern int smb_valid_socket(struct inode *inode);
+extern int smb_catch_keepalive(struct smb_sb_info *server);
+extern int smb_dont_catch_keepalive(struct smb_sb_info *server);
+extern void smb_close_socket(struct smb_sb_info *server);
+extern int smb_round_length(int len);
+extern int smb_request(struct smb_sb_info *server);
+extern int smb_trans2_request(struct smb_sb_info *server, __u16 trans2_command, int ldata, unsigned char *data, int lparam, unsigned char *param, int *lrdata, unsigned char **rdata, int *lrparam, unsigned char **rparam);
+/* inode.c */
+extern struct inode *smb_iget(struct super_block *sb, struct smb_fattr *fattr);
+extern void smb_get_inode_attr(struct inode *inode, struct smb_fattr *fattr);
+extern void smb_set_inode_attr(struct inode *inode, struct smb_fattr *fattr);
+extern void smb_invalidate_inodes(struct smb_sb_info *server);
+extern int smb_revalidate_inode(struct dentry *dentry);
+extern struct super_block *smb_read_super(struct super_block *sb, void *raw_data, int silent);
+extern int smb_notify_change(struct dentry *dentry, struct iattr *attr);
+/* file.c */
+extern struct address_space_operations smb_file_aops;
+extern struct file_operations smb_file_operations;
+extern struct inode_operations smb_file_inode_operations;
+/* ioctl.c */
+extern int smb_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg);
+/* symlink.c */
+extern int smb_read_link(struct dentry *dentry, char *buffer, int len);
+extern int smb_symlink(struct inode *inode, struct dentry *dentry, const char *oldname);
+extern int smb_follow_link(struct dentry *dentry, struct nameidata *nd);
+extern struct inode_operations smb_link_inode_operations;
diff --git a/fs/smbfs/smb_debug.h b/fs/smbfs/smb_debug.h
new file mode 100644
index 00000000000000..e3f8fdd1f7f9c3
--- /dev/null
+++ b/fs/smbfs/smb_debug.h
@@ -0,0 +1,34 @@
+/*
+ * Defines some debug macros for smbfs.
+ */
+
+/* This makes a dentry parent/child name pair. Useful for debugging printk's */
+#define DENTRY_PATH(dentry) \
+	(dentry)->d_parent->d_name.name,(dentry)->d_name.name
+
+/*
+ * safety checks that should never happen ???
+ * these are normally enabled.
+ */
+#ifdef SMBFS_PARANOIA
+# define PARANOIA(f, a...) printk(KERN_NOTICE "%s: " f, __FUNCTION__ , ## a)
+#else
+# define PARANOIA(f, a...) do { ; } while(0)
+#endif
+
+/* lots of debug messages */
+#ifdef SMBFS_DEBUG_VERBOSE
+# define VERBOSE(f, a...) printk(KERN_DEBUG "%s: " f, __FUNCTION__ , ## a)
+#else
+# define VERBOSE(f, a...) do { ; } while(0)
+#endif
+
+/*
+ * "normal" debug messages, but not with a normal DEBUG define ... way
+ * too common name.
+ */
+#ifdef SMBFS_DEBUG
+# define DEBUG1(f, a...) printk(KERN_DEBUG "%s: " f, __FUNCTION__ , ## a)
+#else
+# define DEBUG1(f, a...) do { ; } while(0)
+#endif
diff --git a/fs/smbfs/sock.c b/fs/smbfs/sock.c
new file mode 100644
index 00000000000000..ef28809bfcf2b1
--- /dev/null
+++ b/fs/smbfs/sock.c
@@ -0,0 +1,956 @@
+/*
+ *  sock.c
+ *
+ *  Copyright (C) 1995, 1996 by Paal-Kr. Engstad and Volker Lendecke
+ *  Copyright (C) 1997 by Volker Lendecke
+ *
+ *  Please add a note about your changes to smbfs in the ChangeLog file.
+ */
+
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/socket.h>
+#include <linux/fcntl.h>
+#include <linux/file.h>
+#include <linux/poll.h>
+#include <linux/in.h>
+#include <linux/net.h>
+#include <linux/mm.h>
+#include <linux/netdevice.h>
+#include <linux/smp_lock.h>
+#include <net/scm.h>
+#include <net/ip.h>
+
+#include <linux/smb_fs.h>
+#include <linux/smb.h>
+#include <linux/smbno.h>
+
+#include <asm/uaccess.h>
+
+#include "smb_debug.h"
+#include "proto.h"
+
+
+static int
+_recvfrom(struct socket *socket, unsigned char *ubuf, int size,
+	  unsigned flags)
+{
+	struct iovec iov;
+	struct msghdr msg;
+	struct scm_cookie scm;
+
+	msg.msg_name = NULL;
+	msg.msg_namelen = 0;
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+	msg.msg_control = NULL;
+	iov.iov_base = ubuf;
+	iov.iov_len = size;
+	
+	memset(&scm, 0,sizeof(scm));
+	size=socket->ops->recvmsg(socket, &msg, size, flags, &scm);
+	if(size>=0)
+		scm_recv(socket,&msg,&scm,flags);
+	return size;
+}
+
+static int
+_send(struct socket *socket, const void *buff, int len)
+{
+	struct iovec iov;
+	struct msghdr msg;
+	struct scm_cookie scm;
+	int err;
+
+	msg.msg_name = NULL;
+	msg.msg_namelen = 0;
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+	msg.msg_control = NULL;
+	msg.msg_controllen = 0;
+	
+	iov.iov_base = (void *)buff;
+	iov.iov_len = len;
+
+	msg.msg_flags = 0;
+
+	err = scm_send(socket, &msg, &scm);
+        if (err >= 0)
+	{
+		err = socket->ops->sendmsg(socket, &msg, len, &scm);
+		scm_destroy(&scm);
+	}
+	return err;
+}
+
+struct data_callback {
+	struct tq_struct cb;
+	struct sock *sk;
+};
+/*
+ * N.B. What happens if we're in here when the socket closes??
+ */
+static void
+found_data(struct sock *sk)
+{
+	/*
+	 * FIXME: copied from sock_def_readable, it should be a call to
+	 * server->data_ready()	-- manfreds@colorfullife.com
+	 */
+	read_lock(&sk->callback_lock);
+	if(!sk->dead) {
+		wake_up_interruptible(sk->sleep);
+		sock_wake_async(sk->socket,1,POLL_IN);
+	}
+	read_unlock(&sk->callback_lock);
+}
+
+static void
+smb_data_callback(void* ptr)
+{
+	struct data_callback* job=ptr;
+	struct socket *socket = job->sk->socket;
+	unsigned char peek_buf[4];
+	int result = 0;
+	mm_segment_t fs;
+	int count = 100;   /* this is a lot, we should have some data waiting */
+	int found = 0;
+
+	fs = get_fs();
+	set_fs(get_ds());
+
+	lock_kernel();
+	while (count-- > 0) {
+		peek_buf[0] = 0;
+
+		result = -EIO;
+		if (job->sk->dead) {
+			PARANOIA("sock dead!\n");
+			break;
+		}
+
+		result = _recvfrom(socket, (void *) peek_buf, 1,
+				   MSG_PEEK | MSG_DONTWAIT);
+		if (result < 0)
+			break;
+		if (peek_buf[0] != 0x85)
+			break;
+
+		/* got SESSION KEEP ALIVE */
+		result = _recvfrom(socket, (void *) peek_buf, 4,
+				   MSG_DONTWAIT);
+
+		DEBUG1("got SESSION KEEPALIVE\n");
+
+		if (result < 0)
+			break;
+		found = 1;
+	}
+	unlock_kernel();
+	set_fs(fs);
+
+	DEBUG1("found=%d, count=%d, result=%d\n", found, count, result);
+	if (found)
+		found_data(job->sk);
+	smb_kfree(ptr);
+}
+
+static void
+smb_data_ready(struct sock *sk, int len)
+{
+	struct data_callback* job;
+	job = smb_kmalloc(sizeof(struct data_callback),GFP_ATOMIC);
+	if(job == 0) {
+		printk("smb_data_ready: lost SESSION KEEPALIVE due to OOM.\n");
+		found_data(sk);
+		return;
+	}
+	INIT_LIST_HEAD(&job->cb.list);
+	job->cb.sync = 0;
+	job->cb.routine = smb_data_callback;
+	job->cb.data = job;
+	job->sk = sk;
+	schedule_task(&job->cb);
+}
+
+int
+smb_valid_socket(struct inode * inode)
+{
+	return (inode && S_ISSOCK(inode->i_mode) && 
+		inode->u.socket_i.type == SOCK_STREAM);
+}
+
+static struct socket *
+server_sock(struct smb_sb_info *server)
+{
+	struct file *file;
+
+	if (server && (file = server->sock_file))
+	{
+#ifdef SMBFS_PARANOIA
+		if (!smb_valid_socket(file->f_dentry->d_inode))
+			PARANOIA("bad socket!\n");
+#endif
+		return &file->f_dentry->d_inode->u.socket_i;
+	}
+	return NULL;
+}
+
+int
+smb_catch_keepalive(struct smb_sb_info *server)
+{
+	struct socket *socket;
+	struct sock *sk;
+	void *data_ready;
+	int error;
+
+	error = -EINVAL;
+	socket = server_sock(server);
+	if (!socket)
+	{
+		printk(KERN_DEBUG "smb_catch_keepalive: did not get valid server!\n");
+		server->data_ready = NULL;
+		goto out;
+	}
+
+	sk = socket->sk;
+	if (sk == NULL)
+	{
+		DEBUG1("sk == NULL");
+		server->data_ready = NULL;
+		goto out;
+	}
+	DEBUG1("sk->d_r = %x, server->d_r = %x\n",
+		 (unsigned int) (sk->data_ready),
+		 (unsigned int) (server->data_ready));
+
+	/*
+	 * Install the callback atomically to avoid races ...
+	 */
+	data_ready = xchg(&sk->data_ready, smb_data_ready);
+	if (data_ready != smb_data_ready) {
+		server->data_ready = data_ready;
+		error = 0;
+	} else
+		printk(KERN_ERR "smb_catch_keepalive: already done\n");
+out:
+	return error;
+}
+
+int
+smb_dont_catch_keepalive(struct smb_sb_info *server)
+{
+	struct socket *socket;
+	struct sock *sk;
+	void * data_ready;
+	int error;
+
+	error = -EINVAL;
+	socket = server_sock(server);
+	if (!socket)
+	{
+		printk(KERN_DEBUG "smb_dont_catch_keepalive: did not get valid server!\n");
+		goto out;
+	}
+
+	sk = socket->sk;
+	if (sk == NULL)
+	{
+		DEBUG1("sk == NULL");
+		goto out;
+	}
+
+	/* Is this really an error?? */
+	if (server->data_ready == NULL)
+	{
+		printk(KERN_DEBUG "smb_dont_catch_keepalive: "
+		       "server->data_ready == NULL\n");
+		goto out;
+	}
+	DEBUG1("smb_dont_catch_keepalive: sk->d_r = %x, server->d_r = %x\n",
+	       (unsigned int) (sk->data_ready),
+	       (unsigned int) (server->data_ready));
+
+	/*
+	 * Restore the original callback atomically to avoid races ...
+	 */
+	data_ready = xchg(&sk->data_ready, server->data_ready);
+	server->data_ready = NULL;
+	if (data_ready != smb_data_ready)
+	{
+		printk(KERN_ERR "smb_dont_catch_keepalive: "
+		       "sk->data_ready != smb_data_ready\n");
+	}
+	error = 0;
+out:
+	return error;
+}
+
+/*
+ * Called with the server locked.
+ */
+void
+smb_close_socket(struct smb_sb_info *server)
+{
+	struct file * file = server->sock_file;
+
+	if (file)
+	{
+		VERBOSE("closing socket %p\n", server_sock(server));
+#ifdef SMBFS_PARANOIA
+		if (server_sock(server)->sk->data_ready == smb_data_ready)
+			PARANOIA("still catching keepalives!\n");
+#endif
+		server->sock_file = NULL;
+		fput(file);
+	}
+}
+
+/*
+ * Poll the server->socket to allow receives to time out.
+ * returns 0 when ok to continue, <0 on errors.
+ */
+static int
+smb_receive_poll(struct smb_sb_info *server)
+{
+	struct file *file = server->sock_file;
+	poll_table wait_table;
+	int result = 0;
+	int timeout = server->mnt->timeo * HZ;
+	int mask;
+
+	for (;;) {
+		poll_initwait(&wait_table);
+                set_current_state(TASK_INTERRUPTIBLE);
+
+		mask = file->f_op->poll(file, &wait_table);
+		if (mask & POLLIN) {
+			poll_freewait(&wait_table);
+			current->state = TASK_RUNNING;
+			break;
+		}
+
+		timeout = schedule_timeout(timeout);
+		poll_freewait(&wait_table);
+                set_current_state(TASK_RUNNING);
+
+		if (wait_table.error) {
+			result = wait_table.error;
+			break;
+		}
+
+		if (signal_pending(current)) {
+			/* we got a signal (which?) tell the caller to
+			   try again (on all signals?). */
+			DEBUG1("got signal_pending()\n");
+			result = -ERESTARTSYS;
+			break;
+		}
+		if (!timeout) {
+			printk(KERN_WARNING "SMB server not responding\n");
+			result = -EIO;
+			break;
+		}
+	}
+	return result;
+}
+
+static int
+smb_send_raw(struct socket *socket, unsigned char *source, int length)
+{
+	int result;
+	int already_sent = 0;
+
+	while (already_sent < length)
+	{
+		result = _send(socket,
+			       (void *) (source + already_sent),
+			       length - already_sent);
+
+		if (result == 0)
+		{
+			return -EIO;
+		}
+		if (result < 0)
+		{
+			DEBUG1("smb_send_raw: sendto error = %d\n", -result);
+			return result;
+		}
+		already_sent += result;
+	}
+	return already_sent;
+}
+
+static int
+smb_receive_raw(struct smb_sb_info *server, unsigned char *target, int length)
+{
+	int result;
+	int already_read = 0;
+	struct socket *socket = server_sock(server);
+
+	while (already_read < length)
+	{
+		result = smb_receive_poll(server);
+		if (result < 0) {
+			DEBUG1("poll error = %d\n", -result);
+			return result;
+		}
+		result = _recvfrom(socket,
+				   (void *) (target + already_read),
+				   length - already_read, 0);
+
+		if (result == 0)
+		{
+			return -EIO;
+		}
+		if (result < 0)
+		{
+			DEBUG1("recvfrom error = %d\n", -result);
+			return result;
+		}
+		already_read += result;
+	}
+	return already_read;
+}
+
+static int
+smb_get_length(struct smb_sb_info *server, unsigned char *header)
+{
+	int result;
+	unsigned char peek_buf[4];
+	mm_segment_t fs;
+
+      re_recv:
+	fs = get_fs();
+	set_fs(get_ds());
+	result = smb_receive_raw(server, peek_buf, 4);
+	set_fs(fs);
+
+	if (result < 0)
+	{
+		PARANOIA("recv error = %d\n", -result);
+		return result;
+	}
+	switch (peek_buf[0])
+	{
+	case 0x00:
+	case 0x82:
+		break;
+
+	case 0x85:
+		DEBUG1("Got SESSION KEEP ALIVE\n");
+		goto re_recv;
+
+	default:
+		PARANOIA("Invalid NBT packet, code=%x\n", peek_buf[0]);
+		return -EIO;
+	}
+
+	if (header != NULL)
+	{
+		memcpy(header, peek_buf, 4);
+	}
+	/* The length in the RFC NB header is the raw data length */
+	return smb_len(peek_buf);
+}
+
+/*
+ * Since we allocate memory in increments of PAGE_SIZE,
+ * round up the packet length to the next multiple.
+ */
+int
+smb_round_length(int len)
+{
+	return (len + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1);
+}
+ 
+/*
+ * smb_receive
+ * fs points to the correct segment
+ */
+static int
+smb_receive(struct smb_sb_info *server)
+{
+	unsigned char * packet = server->packet;
+	int len, result;
+	unsigned char peek_buf[4];
+
+	result = smb_get_length(server, peek_buf);
+	if (result < 0)
+		goto out;
+	len = result;
+	/*
+	 * Some servers do not respect our max_xmit and send
+	 * larger packets.  Try to allocate a new packet,
+	 * but don't free the old one unless we succeed.
+	 */
+	if (len + 4 > server->packet_size)
+	{
+		int new_len = smb_round_length(len + 4);
+
+		result = -ENOMEM;
+		packet = smb_vmalloc(new_len);
+		if (packet == NULL)
+			goto out;
+		smb_vfree(server->packet);
+		server->packet = packet;
+		server->packet_size = new_len;
+	}
+	memcpy(packet, peek_buf, 4);
+	result = smb_receive_raw(server, packet + 4, len);
+	if (result < 0)
+	{
+		VERBOSE("receive error: %d\n", result);
+		goto out;
+	}
+	server->rcls = *(packet + smb_rcls);
+	server->err  = WVAL(packet, smb_err);
+
+#ifdef SMBFS_DEBUG_VERBOSE
+	if (server->rcls != 0)
+		VERBOSE("rcls=%d, err=%d\n", server->rcls, server->err);
+#endif
+out:
+	return result;
+}
+
+/*
+ * This routine checks first for "fast track" processing, as most
+ * packets won't need to be copied. Otherwise, it allocates a new
+ * packet to hold the incoming data.
+ *
+ * Note that the final server packet must be the larger of the two;
+ * server packets aren't allowed to shrink.
+ */
+static int
+smb_receive_trans2(struct smb_sb_info *server,
+		   int *ldata, unsigned char **data,
+		   int *lparm, unsigned char **parm)
+{
+	unsigned char *inbuf, *base, *rcv_buf = NULL;
+	unsigned int parm_disp, parm_offset, parm_count, parm_tot, parm_len = 0;
+	unsigned int data_disp, data_offset, data_count, data_tot, data_len = 0;
+	unsigned int total_p = 0, total_d = 0, buf_len = 0;
+	int result;
+
+	while (1) {
+		result = smb_receive(server);
+		if (result < 0)
+			goto out;
+		inbuf = server->packet;
+		if (server->rcls != 0) {
+			*parm = *data = inbuf;
+			*ldata = *lparm = 0;
+			goto out;
+		}
+		/*
+		 * Extract the control data from the packet.
+		 */
+		data_tot    = WVAL(inbuf, smb_tdrcnt);
+		parm_tot    = WVAL(inbuf, smb_tprcnt);
+		parm_disp   = WVAL(inbuf, smb_prdisp);
+		parm_offset = WVAL(inbuf, smb_proff);
+		parm_count  = WVAL(inbuf, smb_prcnt);
+		data_disp   = WVAL(inbuf, smb_drdisp);
+		data_offset = WVAL(inbuf, smb_droff);
+		data_count  = WVAL(inbuf, smb_drcnt);
+		base = smb_base(inbuf);
+
+		/*
+		 * Assume success and increment lengths.
+		 */
+		parm_len += parm_count;
+		data_len += data_count;
+
+		if (!rcv_buf) {
+			/*
+			 * Check for fast track processing ... just this packet.
+			 */
+			if (parm_count == parm_tot && data_count == data_tot) {
+				VERBOSE("fast track, parm=%u %u %u, data=%u %u %u\n",
+					parm_disp, parm_offset, parm_count,
+					data_disp, data_offset, data_count);
+				*parm  = base + parm_offset;
+				if (*parm - inbuf + parm_tot > server->packet_size)
+					goto out_bad_parm;
+				*data  = base + data_offset;
+				if (*data - inbuf + data_tot > server->packet_size)
+					goto out_bad_data;
+				goto success;
+			}
+
+			/*
+			 * Save the total parameter and data length.
+			 */
+			total_d = data_tot;
+			total_p = parm_tot;
+
+			buf_len = total_d + total_p;
+			if (server->packet_size > buf_len)
+				buf_len = server->packet_size;
+			buf_len = smb_round_length(buf_len);
+			if (buf_len > SMB_MAX_PACKET_SIZE)
+				goto out_too_long;
+
+			rcv_buf = smb_vmalloc(buf_len);
+			if (!rcv_buf)
+				goto out_no_mem;
+			memset(rcv_buf, 0, buf_len);
+			
+			*parm = rcv_buf;
+			*data = rcv_buf + total_p;
+		} else if (data_tot > total_d || parm_tot > total_p)
+			goto out_data_grew;
+
+		if (parm_disp + parm_count > total_p)
+			goto out_bad_parm;
+		if (parm_offset + parm_count > server->packet_size)	
+			goto out_bad_parm;
+		if (data_disp + data_count > total_d)
+			goto out_bad_data;
+		if (data_offset + data_count > server->packet_size)	
+			goto out_bad_data;
+		memcpy(*parm + parm_disp, base + parm_offset, parm_count);
+		memcpy(*data + data_disp, base + data_offset, data_count);
+
+		PARANOIA("copied, parm=%u of %u, data=%u of %u\n",
+			 parm_len, parm_tot, data_len, data_tot);
+
+		/*
+		 * Check whether we've received all of the data. Note that
+		 * we use the packet totals -- total lengths might shrink!
+		 */
+		if (data_len >= data_tot && parm_len >= parm_tot) {
+			data_len = data_tot;
+			parm_len = parm_tot;
+			break;
+		}
+	}
+
+	/*
+	 * Install the new packet.  Note that it's possible, though
+	 * unlikely, that the new packet could be smaller than the
+	 * old one, in which case we just copy the data.
+	 */
+	inbuf = server->packet;
+	if (buf_len >= server->packet_size) {
+		server->packet_size = buf_len;
+		server->packet = rcv_buf;
+		rcv_buf = inbuf;
+	} else {
+		if (parm_len + data_len > buf_len)
+			goto out_data_grew;
+
+		PARANOIA("copying data, old size=%d, new size=%u\n",
+			 server->packet_size, buf_len);
+		memcpy(inbuf, rcv_buf, parm_len + data_len);
+	}
+
+success:
+	*ldata = data_len;
+	*lparm = parm_len;
+out:
+	if (rcv_buf)
+		smb_vfree(rcv_buf);
+	return result;
+
+out_no_mem:
+	PARANOIA("couldn't allocate data area\n");
+	result = -ENOMEM;
+	goto out;
+out_too_long:
+	printk(KERN_ERR "smb_receive_trans2: data/param too long, data=%d, parm=%d\n",
+		data_tot, parm_tot);
+	goto out_error;
+out_data_grew:
+	printk(KERN_ERR "smb_receive_trans2: data/params grew!\n");
+	goto out_error;
+out_bad_parm:
+	printk(KERN_ERR "smb_receive_trans2: invalid parms, disp=%d, cnt=%d, tot=%d\n",
+		parm_disp, parm_count, parm_tot);
+	goto out_error;
+out_bad_data:
+	printk(KERN_ERR "smb_receive_trans2: invalid data, disp=%d, cnt=%d, tot=%d\n",
+		data_disp, data_count, data_tot);
+out_error:
+	result = -EIO;
+	goto out;
+}
+
+/*
+ * Called with the server locked
+ */
+int
+smb_request(struct smb_sb_info *server)
+{
+	unsigned long flags, sigpipe;
+	mm_segment_t fs;
+	sigset_t old_set;
+	int len, result;
+	unsigned char *buffer;
+
+	result = -EBADF;
+	buffer = server->packet;
+	if (!buffer)
+		goto bad_no_packet;
+
+	result = -EIO;
+	if (server->state != CONN_VALID)
+		goto bad_no_conn;
+
+	if ((result = smb_dont_catch_keepalive(server)) != 0)
+		goto bad_conn;
+
+	len = smb_len(buffer) + 4;
+	DEBUG1("len = %d cmd = 0x%X\n", len, buffer[8]);
+
+	spin_lock_irqsave(&current->sigmask_lock, flags);
+	sigpipe = sigismember(&current->pending.signal, SIGPIPE);
+	old_set = current->blocked;
+	siginitsetinv(&current->blocked, sigmask(SIGKILL)|sigmask(SIGSTOP));
+	recalc_sigpending(current);
+	spin_unlock_irqrestore(&current->sigmask_lock, flags);
+
+	fs = get_fs();
+	set_fs(get_ds());
+
+	result = smb_send_raw(server_sock(server), (void *) buffer, len);
+	if (result > 0)
+	{
+		result = smb_receive(server);
+	}
+
+	/* read/write errors are handled by errno */
+	spin_lock_irqsave(&current->sigmask_lock, flags);
+	if (result == -EPIPE && !sigpipe)
+		sigdelset(&current->pending.signal, SIGPIPE);
+	current->blocked = old_set;
+	recalc_sigpending(current);
+	spin_unlock_irqrestore(&current->sigmask_lock, flags);
+
+	set_fs(fs);
+
+	if (result >= 0)
+	{
+		int result2 = smb_catch_keepalive(server);
+		if (result2 < 0)
+		{
+			printk(KERN_ERR "smb_request: catch keepalive failed\n");
+			result = result2;
+		}
+	}
+	if (result < 0)
+		goto bad_conn;
+	/*
+	 * Check for fatal server errors ...
+	 */
+	if (server->rcls) {
+		int error = smb_errno(server);
+		if (error == -EBADSLT) {
+			printk(KERN_ERR "smb_request: tree ID invalid\n");
+			result = error;
+			goto bad_conn;
+		}
+	}
+
+out:
+	DEBUG1("result = %d\n", result);
+	return result;
+	
+bad_conn:
+	PARANOIA("result %d, setting invalid\n", result);
+	server->state = CONN_INVALID;
+	smb_invalidate_inodes(server);
+	goto out;		
+bad_no_packet:
+	printk(KERN_ERR "smb_request: no packet!\n");
+	goto out;
+bad_no_conn:
+	printk(KERN_ERR "smb_request: connection %d not valid!\n",
+	       server->state);
+	goto out;
+}
+
+#define ROUND_UP(x) (((x)+3) & ~3)
+static int
+smb_send_trans2(struct smb_sb_info *server, __u16 trans2_command,
+		int ldata, unsigned char *data,
+		int lparam, unsigned char *param)
+{
+	struct socket *sock = server_sock(server);
+	struct scm_cookie scm;
+	int err;
+	int mparam, mdata;
+
+	/* I know the following is very ugly, but I want to build the
+	   smb packet as efficiently as possible. */
+
+	const int smb_parameters = 15;
+	const int oparam =
+		ROUND_UP(SMB_HEADER_LEN + 2 * smb_parameters + 2 + 3);
+	const int odata =
+		ROUND_UP(oparam + lparam);
+	const int bcc =
+		odata + ldata - (SMB_HEADER_LEN + 2 * smb_parameters + 2);
+	const int packet_length =
+		SMB_HEADER_LEN + 2 * smb_parameters + bcc + 2;
+
+	unsigned char padding[4] =
+	{0,};
+	char *p;
+
+	struct iovec iov[4];
+	struct msghdr msg;
+
+	/* FIXME! this test needs to include SMB overhead too, I think ... */
+	if ((bcc + oparam) > server->opt.max_xmit)
+		return -ENOMEM;
+	p = smb_setup_header(server, SMBtrans2, smb_parameters, bcc);
+
+	/*
+	 * max parameters + max data + max setup == max_xmit to make NT4 happy
+	 * and not abort the transfer or split into multiple responses.
+	 *
+	 * -100 is to make room for headers, which OS/2 seems to include in the
+	 * size calculation while NT4 does not?
+	 */
+	mparam = SMB_TRANS2_MAX_PARAM;
+	mdata = server->opt.max_xmit - mparam - 100;
+	if (mdata < 1024) {
+		mdata = 1024;
+		mparam = 20;
+	}
+
+	WSET(server->packet, smb_tpscnt, lparam);
+	WSET(server->packet, smb_tdscnt, ldata);
+	WSET(server->packet, smb_mprcnt, mparam);
+	WSET(server->packet, smb_mdrcnt, mdata);
+	WSET(server->packet, smb_msrcnt, 0);    /* max setup always 0 ? */
+	WSET(server->packet, smb_flags, 0);
+	DSET(server->packet, smb_timeout, 0);
+	WSET(server->packet, smb_pscnt, lparam);
+	WSET(server->packet, smb_psoff, oparam - 4);
+	WSET(server->packet, smb_dscnt, ldata);
+	WSET(server->packet, smb_dsoff, odata - 4);
+	WSET(server->packet, smb_suwcnt, 1);
+	WSET(server->packet, smb_setup0, trans2_command);
+	*p++ = 0;		/* null smb_name for trans2 */
+	*p++ = 'D';		/* this was added because OS/2 does it */
+	*p++ = ' ';
+
+
+	msg.msg_name = NULL;
+	msg.msg_namelen = 0;
+	msg.msg_control = NULL;
+	msg.msg_controllen = 0;
+	msg.msg_iov = iov;
+	msg.msg_iovlen = 4;
+	msg.msg_flags = 0;
+	
+	iov[0].iov_base = (void *) server->packet;
+	iov[0].iov_len = oparam;
+	iov[1].iov_base = (param == NULL) ? padding : param;
+	iov[1].iov_len = lparam;
+	iov[2].iov_base = padding;
+	iov[2].iov_len = odata - oparam - lparam;
+	iov[3].iov_base = (data == NULL) ? padding : data;
+	iov[3].iov_len = ldata;
+
+	err = scm_send(sock, &msg, &scm);
+        if (err >= 0) {
+		err = sock->ops->sendmsg(sock, &msg, packet_length, &scm);
+		scm_destroy(&scm);
+	}
+	return err;
+}
+
+/*
+ * This is not really a trans2 request, we assume that you only have
+ * one packet to send.
+ */
+int
+smb_trans2_request(struct smb_sb_info *server, __u16 trans2_command,
+		   int ldata, unsigned char *data,
+		   int lparam, unsigned char *param,
+		   int *lrdata, unsigned char **rdata,
+		   int *lrparam, unsigned char **rparam)
+{
+	sigset_t old_set;
+	unsigned long flags, sigpipe;
+	mm_segment_t fs;
+	int result;
+
+	DEBUG1("com=%d, ld=%d, lp=%d\n", trans2_command, ldata, lparam);
+
+	/*
+	 * These are initialized in smb_request_ok, but not here??
+	 */
+	server->rcls = 0;
+	server->err = 0;
+
+	result = -EIO;
+	if (server->state != CONN_VALID)
+		goto out;
+
+	if ((result = smb_dont_catch_keepalive(server)) != 0)
+		goto bad_conn;
+
+	spin_lock_irqsave(&current->sigmask_lock, flags);
+	sigpipe = sigismember(&current->pending.signal, SIGPIPE);
+	old_set = current->blocked;
+	siginitsetinv(&current->blocked, sigmask(SIGKILL)|sigmask(SIGSTOP));
+	recalc_sigpending(current);
+	spin_unlock_irqrestore(&current->sigmask_lock, flags);
+
+	fs = get_fs();
+	set_fs(get_ds());
+
+	result = smb_send_trans2(server, trans2_command,
+				 ldata, data, lparam, param);
+	if (result >= 0)
+	{
+		result = smb_receive_trans2(server,
+					    lrdata, rdata, lrparam, rparam);
+	}
+
+	/* read/write errors are handled by errno */
+	spin_lock_irqsave(&current->sigmask_lock, flags);
+	if (result == -EPIPE && !sigpipe)
+		sigdelset(&current->pending.signal, SIGPIPE);
+	current->blocked = old_set;
+	recalc_sigpending(current);
+	spin_unlock_irqrestore(&current->sigmask_lock, flags);
+
+	set_fs(fs);
+
+	if (result >= 0)
+	{
+		int result2 = smb_catch_keepalive(server);
+		if (result2 < 0)
+		{
+			result = result2;
+		}
+	}
+	if (result < 0)
+		goto bad_conn;
+	/*
+	 * Check for fatal server errors ...
+	 */
+	if (server->rcls) {
+		int error = smb_errno(server);
+		if (error == -EBADSLT) {
+			printk(KERN_ERR "smb_request: tree ID invalid\n");
+			result = error;
+			goto bad_conn;
+		}
+	}
+
+out:
+	return result;
+
+bad_conn:
+	PARANOIA("result=%d, setting invalid\n", result);
+	server->state = CONN_INVALID;
+	smb_invalidate_inodes(server);
+	goto out;
+}
diff --git a/fs/smbfs/symlink.c b/fs/smbfs/symlink.c
new file mode 100644
index 00000000000000..360ea998a9f640
--- /dev/null
+++ b/fs/smbfs/symlink.c
@@ -0,0 +1,90 @@
+/*
+ *  symlink.c
+ *
+ *  Copyright (C) 2002 by John Newbigin
+ *
+ *  Please add a note about your changes to smbfs in the ChangeLog file.
+ */
+
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/fcntl.h>
+#include <linux/stat.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/pagemap.h>
+#include <linux/smp_lock.h>
+#include <linux/net.h>
+
+#include <asm/uaccess.h>
+#include <asm/system.h>
+
+#include <linux/smbno.h>
+#include <linux/smb_fs.h>
+
+#include "smb_debug.h"
+#include "proto.h"
+
+int smb_read_link(struct dentry *dentry, char *buffer, int len)
+{
+	char *link;
+	int result;
+	DEBUG1("read link buffer len = %d\n", len);
+
+	result = -ENOMEM;
+	link = kmalloc(SMB_MAXNAMELEN + 1, GFP_KERNEL);
+	if (!link)
+		goto out;
+
+	result = smb_proc_read_link(server_from_dentry(dentry), dentry, link,
+				    SMB_MAXNAMELEN);
+	if (result < 0)
+		goto out_free;
+	result = vfs_readlink(dentry, buffer, len, link);
+
+out_free:
+	kfree(link);
+out:
+	return result;
+}
+
+int smb_symlink(struct inode *dir, struct dentry *dentry, const char *oldname)
+{
+	DEBUG1("create symlink %s -> %s/%s\n", oldname, DENTRY_PATH(dentry));
+
+	smb_invalid_dir_cache(dir);
+	return smb_proc_symlink(server_from_dentry(dentry), dentry, oldname);
+}
+
+int smb_follow_link(struct dentry *dentry, struct nameidata *nd)
+{
+	char *link;
+	int result;
+
+	DEBUG1("followlink of %s/%s\n", DENTRY_PATH(dentry));
+
+	result = -ENOMEM;
+	link = kmalloc(SMB_MAXNAMELEN + 1, GFP_KERNEL);
+	if (!link)
+		goto out;
+
+	result = smb_proc_read_link(server_from_dentry(dentry), dentry, link,
+				    SMB_MAXNAMELEN);
+	if (result < 0 || result >= SMB_MAXNAMELEN)
+		goto out_free;
+	link[result] = 0;
+
+	result = vfs_follow_link(nd, link);
+
+out_free:
+	kfree(link);
+out:
+	return result;
+}
+
+struct inode_operations smb_link_inode_operations =
+{
+	.readlink	= smb_read_link,
+	.follow_link	= smb_follow_link,
+};
diff --git a/fs/stat.c b/fs/stat.c
new file mode 100644
index 00000000000000..8392356a230703
--- /dev/null
+++ b/fs/stat.c
@@ -0,0 +1,385 @@
+/*
+ *  linux/fs/stat.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ */
+
+#include <linux/config.h>
+#include <linux/mm.h>
+#include <linux/errno.h>
+#include <linux/file.h>
+#include <linux/smp_lock.h>
+#include <linux/highuid.h>
+
+#include <asm/uaccess.h>
+
+/*
+ * Revalidate the inode. This is required for proper NFS attribute caching.
+ */
+static __inline__ int
+do_revalidate(struct dentry *dentry)
+{
+	struct inode * inode = dentry->d_inode;
+	if (inode->i_op && inode->i_op->revalidate)
+		return inode->i_op->revalidate(dentry);
+	return 0;
+}
+
+
+#if !defined(__alpha__) && !defined(__sparc__) && !defined(__ia64__) && !defined(CONFIG_ARCH_S390) && !defined(__hppa__) && !defined(__x86_64__) && !defined(__mips__)
+
+/*
+ * For backward compatibility?  Maybe this should be moved
+ * into arch/i386 instead?
+ */
+static int cp_old_stat(struct inode * inode, struct __old_kernel_stat * statbuf)
+{
+	static int warncount = 5;
+	struct __old_kernel_stat tmp;
+
+	memset(&tmp, 0, sizeof(struct __old_kernel_stat));
+	
+	if (warncount > 0) {
+		warncount--;
+		printk(KERN_WARNING "VFS: Warning: %s using old stat() call. Recompile your binary.\n",
+			current->comm);
+	} else if (warncount < 0) {
+		/* it's laughable, but... */
+		warncount = 0;
+	}
+
+	tmp.st_dev = kdev_t_to_nr(inode->i_dev);
+	tmp.st_ino = inode->i_ino;
+	tmp.st_mode = inode->i_mode;
+	tmp.st_nlink = inode->i_nlink;
+	if (tmp.st_nlink != inode->i_nlink)
+		return -EOVERFLOW;
+	SET_OLDSTAT_UID(tmp, inode->i_uid);
+	SET_OLDSTAT_GID(tmp, inode->i_gid);
+	tmp.st_rdev = kdev_t_to_nr(inode->i_rdev);
+#if BITS_PER_LONG == 32
+	if (inode->i_size > MAX_NON_LFS)
+		return -EOVERFLOW;
+#endif	
+	tmp.st_size = inode->i_size;
+	tmp.st_atime = inode->i_atime;
+	tmp.st_mtime = inode->i_mtime;
+	tmp.st_ctime = inode->i_ctime;
+	return copy_to_user(statbuf,&tmp,sizeof(tmp)) ? -EFAULT : 0;
+}
+
+#endif
+
+static int cp_new_stat(struct inode * inode, struct stat * statbuf)
+{
+	struct stat tmp;
+	unsigned int blocks, indirect;
+
+	memset(&tmp, 0, sizeof(tmp));
+	tmp.st_dev = kdev_t_to_nr(inode->i_dev);
+	tmp.st_ino = inode->i_ino;
+	tmp.st_mode = inode->i_mode;
+	tmp.st_nlink = inode->i_nlink;
+	if (tmp.st_nlink != inode->i_nlink)
+		return -EOVERFLOW;
+	SET_STAT_UID(tmp, inode->i_uid);
+	SET_STAT_GID(tmp, inode->i_gid);
+	tmp.st_rdev = kdev_t_to_nr(inode->i_rdev);
+#if BITS_PER_LONG == 32
+	if (inode->i_size > MAX_NON_LFS)
+		return -EOVERFLOW;
+#endif	
+	tmp.st_size = inode->i_size;
+	tmp.st_atime = inode->i_atime;
+	tmp.st_mtime = inode->i_mtime;
+	tmp.st_ctime = inode->i_ctime;
+/*
+ * st_blocks and st_blksize are approximated with a simple algorithm if
+ * they aren't supported directly by the filesystem. The minix and msdos
+ * filesystems don't keep track of blocks, so they would either have to
+ * be counted explicitly (by delving into the file itself), or by using
+ * this simple algorithm to get a reasonable (although not 100% accurate)
+ * value.
+ */
+
+/*
+ * Use minix fs values for the number of direct and indirect blocks.  The
+ * count is now exact for the minix fs except that it counts zero blocks.
+ * Everything is in units of BLOCK_SIZE until the assignment to
+ * tmp.st_blksize.
+ */
+#define D_B   7
+#define I_B   (BLOCK_SIZE / sizeof(unsigned short))
+
+	if (!inode->i_blksize) {
+		blocks = (tmp.st_size + BLOCK_SIZE - 1) / BLOCK_SIZE;
+		if (blocks > D_B) {
+			indirect = (blocks - D_B + I_B - 1) / I_B;
+			blocks += indirect;
+			if (indirect > 1) {
+				indirect = (indirect - 1 + I_B - 1) / I_B;
+				blocks += indirect;
+				if (indirect > 1)
+					blocks++;
+			}
+		}
+		tmp.st_blocks = (BLOCK_SIZE / 512) * blocks;
+		tmp.st_blksize = BLOCK_SIZE;
+	} else {
+		tmp.st_blocks = inode->i_blocks;
+		tmp.st_blksize = inode->i_blksize;
+	}
+	return copy_to_user(statbuf,&tmp,sizeof(tmp)) ? -EFAULT : 0;
+}
+
+
+#if !defined(__alpha__) && !defined(__sparc__) && !defined(__ia64__) && !defined(CONFIG_ARCH_S390) && !defined(__hppa__) && !defined(__x86_64__) && !defined(__mips__)
+/*
+ * For backward compatibility?  Maybe this should be moved
+ * into arch/i386 instead?
+ */
+asmlinkage long sys_stat(char * filename, struct __old_kernel_stat * statbuf)
+{
+	struct nameidata nd;
+	int error;
+
+	error = user_path_walk(filename, &nd);
+	if (!error) {
+		error = do_revalidate(nd.dentry);
+		if (!error)
+			error = cp_old_stat(nd.dentry->d_inode, statbuf);
+		path_release(&nd);
+	}
+	return error;
+}
+#endif
+
+asmlinkage long sys_newstat(char * filename, struct stat * statbuf)
+{
+	struct nameidata nd;
+	int error;
+
+	error = user_path_walk(filename, &nd);
+	if (!error) {
+		error = do_revalidate(nd.dentry);
+		if (!error)
+			error = cp_new_stat(nd.dentry->d_inode, statbuf);
+		path_release(&nd);
+	}
+	return error;
+}
+
+#if !defined(__alpha__) && !defined(__sparc__) && !defined(__ia64__) && !defined(CONFIG_ARCH_S390) && !defined(__hppa__) && !defined(__x86_64__) && !defined(__mips__)
+
+/*
+ * For backward compatibility?  Maybe this should be moved
+ * into arch/i386 instead?
+ */
+asmlinkage long sys_lstat(char * filename, struct __old_kernel_stat * statbuf)
+{
+	struct nameidata nd;
+	int error;
+
+	error = user_path_walk_link(filename, &nd);
+	if (!error) {
+		error = do_revalidate(nd.dentry);
+		if (!error)
+			error = cp_old_stat(nd.dentry->d_inode, statbuf);
+		path_release(&nd);
+	}
+	return error;
+}
+
+#endif
+
+asmlinkage long sys_newlstat(char * filename, struct stat * statbuf)
+{
+	struct nameidata nd;
+	int error;
+
+	error = user_path_walk_link(filename, &nd);
+	if (!error) {
+		error = do_revalidate(nd.dentry);
+		if (!error)
+			error = cp_new_stat(nd.dentry->d_inode, statbuf);
+		path_release(&nd);
+	}
+	return error;
+}
+
+#if !defined(__alpha__) && !defined(__sparc__) && !defined(__ia64__) && !defined(CONFIG_ARCH_S390) && !defined(__hppa__) && !defined(__x86_64__) && !defined(__mips__)
+
+/*
+ * For backward compatibility?  Maybe this should be moved
+ * into arch/i386 instead?
+ */
+asmlinkage long sys_fstat(unsigned int fd, struct __old_kernel_stat * statbuf)
+{
+	struct file * f;
+	int err = -EBADF;
+
+	f = fget(fd);
+	if (f) {
+		struct dentry * dentry = f->f_dentry;
+
+		err = do_revalidate(dentry);
+		if (!err)
+			err = cp_old_stat(dentry->d_inode, statbuf);
+		fput(f);
+	}
+	return err;
+}
+
+#endif
+
+asmlinkage long sys_newfstat(unsigned int fd, struct stat * statbuf)
+{
+	struct file * f;
+	int err = -EBADF;
+
+	f = fget(fd);
+	if (f) {
+		struct dentry * dentry = f->f_dentry;
+
+		err = do_revalidate(dentry);
+		if (!err)
+			err = cp_new_stat(dentry->d_inode, statbuf);
+		fput(f);
+	}
+	return err;
+}
+
+asmlinkage long sys_readlink(const char * path, char * buf, int bufsiz)
+{
+	struct nameidata nd;
+	int error;
+
+	if (bufsiz <= 0)
+		return -EINVAL;
+
+	error = user_path_walk_link(path, &nd);
+	if (!error) {
+		struct inode * inode = nd.dentry->d_inode;
+
+		error = -EINVAL;
+		if (inode->i_op && inode->i_op->readlink &&
+		    !(error = do_revalidate(nd.dentry))) {
+			UPDATE_ATIME(inode);
+			error = inode->i_op->readlink(nd.dentry, buf, bufsiz);
+		}
+		path_release(&nd);
+	}
+	return error;
+}
+
+
+/* ---------- LFS-64 ----------- */
+#if !defined(__alpha__) && !defined(__ia64__) && !defined(__mips64) && !defined(__x86_64__) && !defined(CONFIG_ARCH_S390X)
+
+static long cp_new_stat64(struct inode * inode, struct stat64 * statbuf)
+{
+	struct stat64 tmp;
+	unsigned int blocks, indirect;
+
+	memset(&tmp, 0, sizeof(tmp));
+	tmp.st_dev = kdev_t_to_nr(inode->i_dev);
+	tmp.st_ino = inode->i_ino;
+#ifdef STAT64_HAS_BROKEN_ST_INO
+	tmp.__st_ino = inode->i_ino;
+#endif
+	tmp.st_mode = inode->i_mode;
+	tmp.st_nlink = inode->i_nlink;
+	tmp.st_uid = inode->i_uid;
+	tmp.st_gid = inode->i_gid;
+	tmp.st_rdev = kdev_t_to_nr(inode->i_rdev);
+	tmp.st_atime = inode->i_atime;
+	tmp.st_mtime = inode->i_mtime;
+	tmp.st_ctime = inode->i_ctime;
+	tmp.st_size = inode->i_size;
+/*
+ * st_blocks and st_blksize are approximated with a simple algorithm if
+ * they aren't supported directly by the filesystem. The minix and msdos
+ * filesystems don't keep track of blocks, so they would either have to
+ * be counted explicitly (by delving into the file itself), or by using
+ * this simple algorithm to get a reasonable (although not 100% accurate)
+ * value.
+ */
+
+/*
+ * Use minix fs values for the number of direct and indirect blocks.  The
+ * count is now exact for the minix fs except that it counts zero blocks.
+ * Everything is in units of BLOCK_SIZE until the assignment to
+ * tmp.st_blksize.
+ */
+#define D_B   7
+#define I_B   (BLOCK_SIZE / sizeof(unsigned short))
+
+	if (!inode->i_blksize) {
+		blocks = (tmp.st_size + BLOCK_SIZE - 1) >> BLOCK_SIZE_BITS;
+		if (blocks > D_B) {
+			indirect = (blocks - D_B + I_B - 1) / I_B;
+			blocks += indirect;
+			if (indirect > 1) {
+				indirect = (indirect - 1 + I_B - 1) / I_B;
+				blocks += indirect;
+				if (indirect > 1)
+					blocks++;
+			}
+		}
+		tmp.st_blocks = (BLOCK_SIZE / 512) * blocks;
+		tmp.st_blksize = BLOCK_SIZE;
+	} else {
+		tmp.st_blocks = inode->i_blocks;
+		tmp.st_blksize = inode->i_blksize;
+	}
+	return copy_to_user(statbuf,&tmp,sizeof(tmp)) ? -EFAULT : 0;
+}
+
+asmlinkage long sys_stat64(char * filename, struct stat64 * statbuf, long flags)
+{
+	struct nameidata nd;
+	int error;
+
+	error = user_path_walk(filename, &nd);
+	if (!error) {
+		error = do_revalidate(nd.dentry);
+		if (!error)
+			error = cp_new_stat64(nd.dentry->d_inode, statbuf);
+		path_release(&nd);
+	}
+	return error;
+}
+
+asmlinkage long sys_lstat64(char * filename, struct stat64 * statbuf, long flags)
+{
+	struct nameidata nd;
+	int error;
+
+	error = user_path_walk_link(filename, &nd);
+	if (!error) {
+		error = do_revalidate(nd.dentry);
+		if (!error)
+			error = cp_new_stat64(nd.dentry->d_inode, statbuf);
+		path_release(&nd);
+	}
+	return error;
+}
+
+asmlinkage long sys_fstat64(unsigned long fd, struct stat64 * statbuf, long flags)
+{
+	struct file * f;
+	int err = -EBADF;
+
+	f = fget(fd);
+	if (f) {
+		struct dentry * dentry = f->f_dentry;
+
+		err = do_revalidate(dentry);
+		if (!err)
+			err = cp_new_stat64(dentry->d_inode, statbuf);
+		fput(f);
+	}
+	return err;
+}
+
+#endif /* LFS-64 */
diff --git a/fs/super.c b/fs/super.c
new file mode 100644
index 00000000000000..94e95b875a7506
--- /dev/null
+++ b/fs/super.c
@@ -0,0 +1,869 @@
+/*
+ *  linux/fs/super.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  super.c contains code to handle: - mount structures
+ *                                   - super-block tables
+ *                                   - filesystem drivers list
+ *                                   - mount system call
+ *                                   - umount system call
+ *                                   - ustat system call
+ *
+ * GK 2/5/95  -  Changed to support mounting the root fs via NFS
+ *
+ *  Added kerneld support: Jacques Gelinas and Bjorn Ekwall
+ *  Added change_root: Werner Almesberger & Hans Lermen, Feb '96
+ *  Added options to /proc/mounts:
+ *    Torbjörn Lindh (torbjorn.lindh@gopta.se), April 14, 1996.
+ *  Added devfs support: Richard Gooch <rgooch@atnf.csiro.au>, 13-JAN-1998
+ *  Heavily rewritten for 'one fs - one tree' dcache architecture. AV, Mar 2000
+ */
+
+#include <linux/config.h>
+#include <linux/slab.h>
+#include <linux/locks.h>
+#include <linux/smp_lock.h>
+#include <linux/devfs_fs_kernel.h>
+#include <linux/major.h>
+#include <linux/acct.h>
+#include <linux/quotaops.h>
+
+#include <asm/uaccess.h>
+
+#include <linux/kmod.h>
+#define __NO_VERSION__
+#include <linux/module.h>
+
+LIST_HEAD(super_blocks);
+spinlock_t sb_lock = SPIN_LOCK_UNLOCKED;
+
+/*
+ * Handling of filesystem drivers list.
+ * Rules:
+ *	Inclusion to/removals from/scanning of list are protected by spinlock.
+ *	During the unload module must call unregister_filesystem().
+ *	We can access the fields of list element if:
+ *		1) spinlock is held or
+ *		2) we hold the reference to the module.
+ *	The latter can be guaranteed by call of try_inc_mod_count(); if it
+ *	returned 0 we must skip the element, otherwise we got the reference.
+ *	Once the reference is obtained we can drop the spinlock.
+ */
+
+static struct file_system_type *file_systems;
+static rwlock_t file_systems_lock = RW_LOCK_UNLOCKED;
+
+/* WARNING: This can be used only if we _already_ own a reference */
+static void get_filesystem(struct file_system_type *fs)
+{
+	if (fs->owner)
+		__MOD_INC_USE_COUNT(fs->owner);
+}
+
+static void put_filesystem(struct file_system_type *fs)
+{
+	if (fs->owner)
+		__MOD_DEC_USE_COUNT(fs->owner);
+}
+
+static struct file_system_type **find_filesystem(const char *name)
+{
+	struct file_system_type **p;
+	for (p=&file_systems; *p; p=&(*p)->next)
+		if (strcmp((*p)->name,name) == 0)
+			break;
+	return p;
+}
+
+/**
+ *	register_filesystem - register a new filesystem
+ *	@fs: the file system structure
+ *
+ *	Adds the file system passed to the list of file systems the kernel
+ *	is aware of for mount and other syscalls. Returns 0 on success,
+ *	or a negative errno code on an error.
+ *
+ *	The &struct file_system_type that is passed is linked into the kernel 
+ *	structures and must not be freed until the file system has been
+ *	unregistered.
+ */
+ 
+int register_filesystem(struct file_system_type * fs)
+{
+	int res = 0;
+	struct file_system_type ** p;
+
+	if (!fs)
+		return -EINVAL;
+	if (fs->next)
+		return -EBUSY;
+	INIT_LIST_HEAD(&fs->fs_supers);
+	write_lock(&file_systems_lock);
+	p = find_filesystem(fs->name);
+	if (*p)
+		res = -EBUSY;
+	else
+		*p = fs;
+	write_unlock(&file_systems_lock);
+	return res;
+}
+
+/**
+ *	unregister_filesystem - unregister a file system
+ *	@fs: filesystem to unregister
+ *
+ *	Remove a file system that was previously successfully registered
+ *	with the kernel. An error is returned if the file system is not found.
+ *	Zero is returned on a success.
+ *	
+ *	Once this function has returned the &struct file_system_type structure
+ *	may be freed or reused.
+ */
+ 
+int unregister_filesystem(struct file_system_type * fs)
+{
+	struct file_system_type ** tmp;
+
+	write_lock(&file_systems_lock);
+	tmp = &file_systems;
+	while (*tmp) {
+		if (fs == *tmp) {
+			*tmp = fs->next;
+			fs->next = NULL;
+			write_unlock(&file_systems_lock);
+			return 0;
+		}
+		tmp = &(*tmp)->next;
+	}
+	write_unlock(&file_systems_lock);
+	return -EINVAL;
+}
+
+static int fs_index(const char * __name)
+{
+	struct file_system_type * tmp;
+	char * name;
+	int err, index;
+
+	name = getname(__name);
+	err = PTR_ERR(name);
+	if (IS_ERR(name))
+		return err;
+
+	err = -EINVAL;
+	read_lock(&file_systems_lock);
+	for (tmp=file_systems, index=0 ; tmp ; tmp=tmp->next, index++) {
+		if (strcmp(tmp->name,name) == 0) {
+			err = index;
+			break;
+		}
+	}
+	read_unlock(&file_systems_lock);
+	putname(name);
+	return err;
+}
+
+static int fs_name(unsigned int index, char * buf)
+{
+	struct file_system_type * tmp;
+	int len, res;
+
+	read_lock(&file_systems_lock);
+	for (tmp = file_systems; tmp; tmp = tmp->next, index--)
+		if (index <= 0 && try_inc_mod_count(tmp->owner))
+				break;
+	read_unlock(&file_systems_lock);
+	if (!tmp)
+		return -EINVAL;
+
+	/* OK, we got the reference, so we can safely block */
+	len = strlen(tmp->name) + 1;
+	res = copy_to_user(buf, tmp->name, len) ? -EFAULT : 0;
+	put_filesystem(tmp);
+	return res;
+}
+
+static int fs_maxindex(void)
+{
+	struct file_system_type * tmp;
+	int index;
+
+	read_lock(&file_systems_lock);
+	for (tmp = file_systems, index = 0 ; tmp ; tmp = tmp->next, index++)
+		;
+	read_unlock(&file_systems_lock);
+	return index;
+}
+
+/*
+ * Whee.. Weird sysv syscall. 
+ */
+asmlinkage long sys_sysfs(int option, unsigned long arg1, unsigned long arg2)
+{
+	int retval = -EINVAL;
+
+	switch (option) {
+		case 1:
+			retval = fs_index((const char *) arg1);
+			break;
+
+		case 2:
+			retval = fs_name(arg1, (char *) arg2);
+			break;
+
+		case 3:
+			retval = fs_maxindex();
+			break;
+	}
+	return retval;
+}
+
+int get_filesystem_list(char * buf)
+{
+	int len = 0;
+	struct file_system_type * tmp;
+
+	read_lock(&file_systems_lock);
+	tmp = file_systems;
+	while (tmp && len < PAGE_SIZE - 80) {
+		len += sprintf(buf+len, "%s\t%s\n",
+			(tmp->fs_flags & FS_REQUIRES_DEV) ? "" : "nodev",
+			tmp->name);
+		tmp = tmp->next;
+	}
+	read_unlock(&file_systems_lock);
+	return len;
+}
+
+struct file_system_type *get_fs_type(const char *name)
+{
+	struct file_system_type *fs;
+	
+	read_lock(&file_systems_lock);
+	fs = *(find_filesystem(name));
+	if (fs && !try_inc_mod_count(fs->owner))
+		fs = NULL;
+	read_unlock(&file_systems_lock);
+	if (!fs && (request_module(name) == 0)) {
+		read_lock(&file_systems_lock);
+		fs = *(find_filesystem(name));
+		if (fs && !try_inc_mod_count(fs->owner))
+			fs = NULL;
+		read_unlock(&file_systems_lock);
+	}
+	return fs;
+}
+
+/**
+ *	alloc_super	-	create new superblock
+ *
+ *	Allocates and initializes a new &struct super_block.  alloc_super()
+ *	returns a pointer new superblock or %NULL if allocation had failed.
+ */
+static struct super_block *alloc_super(void)
+{
+	static struct super_operations empty_sops = {};
+	struct super_block *s = kmalloc(sizeof(struct super_block),  GFP_USER);
+	if (s) {
+		memset(s, 0, sizeof(struct super_block));
+		INIT_LIST_HEAD(&s->s_dirty);
+		INIT_LIST_HEAD(&s->s_locked_inodes);
+		INIT_LIST_HEAD(&s->s_files);
+		INIT_LIST_HEAD(&s->s_instances);
+		init_rwsem(&s->s_umount);
+		sema_init(&s->s_lock, 1);
+		down_write(&s->s_umount);
+		s->s_count = S_BIAS;
+		atomic_set(&s->s_active, 1);
+		sema_init(&s->s_vfs_rename_sem,1);
+		sema_init(&s->s_nfsd_free_path_sem,1);
+		sema_init(&s->s_dquot.dqio_sem, 1);
+		sema_init(&s->s_dquot.dqoff_sem, 1);
+		s->s_maxbytes = MAX_NON_LFS;
+		s->s_op = &empty_sops;
+		s->dq_op = sb_dquot_ops;
+		s->s_qcop = sb_quotactl_ops;
+	}
+	return s;
+}
+
+/**
+ *	destroy_super	-	frees a superblock
+ *	@s: superblock to free
+ *
+ *	Frees a superblock.
+ */
+static inline void destroy_super(struct super_block *s)
+{
+	kfree(s);
+}
+
+/* Superblock refcounting  */
+
+/**
+ *	deactivate_super	-	turn an active reference into temporary
+ *	@s: superblock to deactivate
+ *
+ *	Turns an active reference into temporary one.  Returns 0 if there are
+ *	other active references, 1 if we had deactivated the last one.
+ */
+static inline int deactivate_super(struct super_block *s)
+{
+	if (!atomic_dec_and_lock(&s->s_active, &sb_lock))
+		return 0;
+	s->s_count -= S_BIAS-1;
+	spin_unlock(&sb_lock);
+	return 1;
+}
+
+/**
+ *	put_super	-	drop a temporary reference to superblock
+ *	@s: superblock in question
+ *
+ *	Drops a temporary reference, frees superblock if there's no
+ *	references left.
+ */
+static inline void put_super(struct super_block *s)
+{
+	spin_lock(&sb_lock);
+	if (!--s->s_count)
+		destroy_super(s);
+	spin_unlock(&sb_lock);
+}
+
+/**
+ *	grab_super	- acquire an active reference
+ *	@s	- reference we are trying to make active
+ *
+ *	Tries to acquire an active reference.  grab_super() is used when we
+ * 	had just found a superblock in super_blocks or fs_type->fs_supers
+ *	and want to turn it into a full-blown active reference.  grab_super()
+ *	is called with sb_lock held and drops it.  Returns 1 in case of
+ *	success, 0 if we had failed (superblock contents was already dead or
+ *	dying when grab_super() had been called).
+ */
+static int grab_super(struct super_block *s)
+{
+	s->s_count++;
+	spin_unlock(&sb_lock);
+	down_write(&s->s_umount);
+	if (s->s_root) {
+		spin_lock(&sb_lock);
+		if (s->s_count > S_BIAS) {
+			atomic_inc(&s->s_active);
+			s->s_count--;
+			spin_unlock(&sb_lock);
+			return 1;
+		}
+		spin_unlock(&sb_lock);
+	}
+	up_write(&s->s_umount);
+	put_super(s);
+	return 0;
+}
+ 
+/**
+ *	insert_super	-	put superblock on the lists
+ *	@s:	superblock in question
+ *	@type:	filesystem type it will belong to
+ *
+ *	Associates superblock with fs type and puts it on per-type and global
+ *	superblocks' lists.  Should be called with sb_lock held; drops it.
+ */
+static void insert_super(struct super_block *s, struct file_system_type *type)
+{
+	s->s_type = type;
+	list_add(&s->s_list, super_blocks.prev);
+	list_add(&s->s_instances, &type->fs_supers);
+	spin_unlock(&sb_lock);
+	get_filesystem(type);
+}
+
+static void put_anon_dev(kdev_t dev);
+
+/**
+ *	remove_super	-	makes superblock unreachable
+ *	@s:	superblock in question
+ *
+ *	Removes superblock from the lists, unlocks it, drop the reference
+ *	and releases the hosting device.  @s should have no active
+ *	references by that time and after remove_super() it's essentially
+ *	in rundown mode - all remaining references are temporary, no new
+ *	reference of any sort are going to appear and all holders of
+ *	temporary ones will eventually drop them.  At that point superblock
+ *	itself will be destroyed; all its contents is already gone.
+ */
+static void remove_super(struct super_block *s)
+{
+	kdev_t dev = s->s_dev;
+	struct block_device *bdev = s->s_bdev;
+	struct file_system_type *fs = s->s_type;
+
+	spin_lock(&sb_lock);
+	list_del(&s->s_list);
+	list_del(&s->s_instances);
+	spin_unlock(&sb_lock);
+	up_write(&s->s_umount);
+	put_super(s);
+	put_filesystem(fs);
+	if (bdev)
+		blkdev_put(bdev, BDEV_FS);
+	else
+		put_anon_dev(dev);
+}
+
+struct vfsmount *alloc_vfsmnt(char *name);
+void free_vfsmnt(struct vfsmount *mnt);
+
+static inline struct super_block * find_super(kdev_t dev)
+{
+	struct list_head *p;
+
+	list_for_each(p, &super_blocks) {
+		struct super_block * s = sb_entry(p);
+		if (s->s_dev == dev) {
+			s->s_count++;
+			return s;
+		}
+	}
+	return NULL;
+}
+
+void drop_super(struct super_block *sb)
+{
+	up_read(&sb->s_umount);
+	put_super(sb);
+}
+
+static inline void write_super(struct super_block *sb)
+{
+	lock_super(sb);
+	if (sb->s_root && sb->s_dirt)
+		if (sb->s_op && sb->s_op->write_super)
+			sb->s_op->write_super(sb);
+	unlock_super(sb);
+}
+
+/*
+ * Note: check the dirty flag before waiting, so we don't
+ * hold up the sync while mounting a device. (The newly
+ * mounted device won't need syncing.)
+ */
+void sync_supers(kdev_t dev, int wait)
+{
+	struct super_block * sb;
+
+	if (dev) {
+		sb = get_super(dev);
+		if (sb) {
+			if (sb->s_dirt)
+				write_super(sb);
+			if (wait && sb->s_op && sb->s_op->sync_fs)
+				sb->s_op->sync_fs(sb);
+			drop_super(sb);
+		}
+		return;
+	}
+restart:
+	spin_lock(&sb_lock);
+	sb = sb_entry(super_blocks.next);
+	while (sb != sb_entry(&super_blocks))
+		if (sb->s_dirt) {
+			sb->s_count++;
+			spin_unlock(&sb_lock);
+			down_read(&sb->s_umount);
+			write_super(sb);
+			if (wait && sb->s_root && sb->s_op && sb->s_op->sync_fs)
+				sb->s_op->sync_fs(sb);
+			drop_super(sb);
+			goto restart;
+		} else
+			sb = sb_entry(sb->s_list.next);
+	spin_unlock(&sb_lock);
+}
+
+/**
+ *	get_super	-	get the superblock of a device
+ *	@dev: device to get the superblock for
+ *	
+ *	Scans the superblock list and finds the superblock of the file system
+ *	mounted on the device given. %NULL is returned if no match is found.
+ */
+ 
+struct super_block * get_super(kdev_t dev)
+{
+	struct super_block * s;
+
+	if (!dev)
+		return NULL;
+restart:
+	spin_lock(&sb_lock);
+	s = find_super(dev);
+	if (s) {
+		spin_unlock(&sb_lock);
+		down_read(&s->s_umount);
+		if (s->s_root)
+			return s;
+		drop_super(s);
+		goto restart;
+	}
+	spin_unlock(&sb_lock);
+	return NULL;
+}
+
+asmlinkage long sys_ustat(dev_t dev, struct ustat * ubuf)
+{
+        struct super_block *s;
+        struct ustat tmp;
+        struct statfs sbuf;
+	int err = -EINVAL;
+
+        s = get_super(to_kdev_t(dev));
+        if (s == NULL)
+                goto out;
+	err = vfs_statfs(s, &sbuf);
+	drop_super(s);
+	if (err)
+		goto out;
+
+        memset(&tmp,0,sizeof(struct ustat));
+        tmp.f_tfree = sbuf.f_bfree;
+        tmp.f_tinode = sbuf.f_ffree;
+
+        err = copy_to_user(ubuf,&tmp,sizeof(struct ustat)) ? -EFAULT : 0;
+out:
+	return err;
+}
+
+/**
+ *	do_remount_sb	-	asks filesystem to change mount options.
+ *	@sb:	superblock in question
+ *	@flags:	numeric part of options
+ *	@data:	the rest of options
+ *
+ *	Alters the mount options of a mounted file system.
+ */
+int do_remount_sb(struct super_block *sb, int flags, void *data)
+{
+	int retval;
+	
+	if (!(flags & MS_RDONLY) && sb->s_dev && is_read_only(sb->s_dev))
+		return -EACCES;
+		/*flags |= MS_RDONLY;*/
+	if (flags & MS_RDONLY)
+		acct_auto_close(sb->s_dev);
+	shrink_dcache_sb(sb);
+	fsync_super(sb);
+	/* If we are remounting RDONLY, make sure there are no rw files open */
+	if ((flags & MS_RDONLY) && !(sb->s_flags & MS_RDONLY))
+		if (!fs_may_remount_ro(sb))
+			return -EBUSY;
+	if (sb->s_op && sb->s_op->remount_fs) {
+		lock_super(sb);
+		retval = sb->s_op->remount_fs(sb, &flags, data);
+		unlock_super(sb);
+		if (retval)
+			return retval;
+	}
+	sb->s_flags = (sb->s_flags & ~MS_RMT_MASK) | (flags & MS_RMT_MASK);
+	return 0;
+}
+
+/*
+ * Unnamed block devices are dummy devices used by virtual
+ * filesystems which don't use real block-devices.  -- jrs
+ */
+
+enum {Max_anon = 256};
+static unsigned long unnamed_dev_in_use[Max_anon/(8*sizeof(unsigned long))];
+static spinlock_t unnamed_dev_lock = SPIN_LOCK_UNLOCKED;/* protects the above */
+
+/**
+ *	put_anon_dev	-	release anonymous device number.
+ *	@dev:	device in question
+ */
+static void put_anon_dev(kdev_t dev)
+{
+	spin_lock(&unnamed_dev_lock);
+	clear_bit(MINOR(dev), unnamed_dev_in_use);
+	spin_unlock(&unnamed_dev_lock);
+}
+
+/**
+ *	get_anon_super	-	allocate a superblock for non-device fs
+ *	@type:		filesystem type
+ *	@compare:	check if existing superblock is what we want
+ *	@data:		argument for @compare.
+ *
+ *	get_anon_super is a helper for non-blockdevice filesystems.
+ *	It either finds and returns one of the superblocks of given type
+ *	(if it can find one that would satisfy caller) or creates a new
+ *	one.  In the either case we return an active reference to superblock
+ *	with ->s_umount locked.  If superblock is new it gets a new
+ *	anonymous device allocated for it and is inserted into lists -
+ *	other initialization is left to caller.
+ *
+ *	Rather than duplicating all that logics every time when
+ *	we want something that doesn't fit "nodev" and "single" we pull
+ *	the relevant code into common helper and let get_sb_...() call
+ *	it.
+ *
+ *	NB: get_sb_...() is going to become an fs type method, with
+ *	current ->read_super() becoming a callback used by common instances.
+ */
+struct super_block *get_anon_super(struct file_system_type *type,
+	int (*compare)(struct super_block *,void *), void *data)
+{
+	struct super_block *s = alloc_super();
+	kdev_t dev;
+	struct list_head *p;
+
+	if (!s)
+		return ERR_PTR(-ENOMEM);
+
+retry:
+	spin_lock(&sb_lock);
+	if (compare) list_for_each(p, &type->fs_supers) {
+		struct super_block *old;
+		old = list_entry(p, struct super_block, s_instances);
+		if (!compare(old, data))
+			continue;
+		if (!grab_super(old))
+			goto retry;
+		destroy_super(s);
+		return old;
+	}
+
+	spin_lock(&unnamed_dev_lock);
+	dev = find_first_zero_bit(unnamed_dev_in_use, Max_anon);
+	if (dev == Max_anon) {
+		spin_unlock(&unnamed_dev_lock);
+		spin_unlock(&sb_lock);
+		destroy_super(s);
+		return ERR_PTR(-EMFILE);
+	}
+	set_bit(dev, unnamed_dev_in_use);
+	spin_unlock(&unnamed_dev_lock);
+
+	s->s_dev = dev;
+	insert_super(s, type);
+	return s;
+}
+
+static struct super_block *get_sb_bdev(struct file_system_type *fs_type,
+	int flags, char *dev_name, void * data)
+{
+	struct inode *inode;
+	struct block_device *bdev;
+	struct block_device_operations *bdops;
+	devfs_handle_t de;
+	struct super_block * s;
+	struct nameidata nd;
+	struct list_head *p;
+	kdev_t dev;
+	int error = 0;
+	mode_t mode = FMODE_READ; /* we always need it ;-) */
+
+	/* What device it is? */
+	if (!dev_name || !*dev_name)
+		return ERR_PTR(-EINVAL);
+	error = path_lookup(dev_name, LOOKUP_FOLLOW|LOOKUP_POSITIVE, &nd);
+	if (error)
+		return ERR_PTR(error);
+	inode = nd.dentry->d_inode;
+	error = -ENOTBLK;
+	if (!S_ISBLK(inode->i_mode))
+		goto out;
+	error = -EACCES;
+	if (nd.mnt->mnt_flags & MNT_NODEV)
+		goto out;
+	bd_acquire(inode);
+	bdev = inode->i_bdev;
+	de = devfs_get_handle_from_inode (inode);
+	bdops = devfs_get_ops (de);         /*  Increments module use count  */
+	if (bdops) bdev->bd_op = bdops;
+	/* Done with lookups, semaphore down */
+	dev = to_kdev_t(bdev->bd_dev);
+	if (!(flags & MS_RDONLY))
+		mode |= FMODE_WRITE;
+	error = blkdev_get(bdev, mode, 0, BDEV_FS);
+	devfs_put_ops (de);   /*  Decrement module use count now we're safe  */
+	if (error)
+		goto out;
+	check_disk_change(dev);
+	error = -EACCES;
+	if (!(flags & MS_RDONLY) && is_read_only(dev))
+		goto out1;
+
+	error = -ENOMEM;
+	s = alloc_super();
+	if (!s)
+		goto out1;
+
+	error = -EBUSY;
+restart:
+	spin_lock(&sb_lock);
+
+	list_for_each(p, &super_blocks) {
+		struct super_block *old = sb_entry(p);
+		if (old->s_dev != dev)
+			continue;
+		if (old->s_type != fs_type ||
+		    ((flags ^ old->s_flags) & MS_RDONLY)) {
+			spin_unlock(&sb_lock);
+			destroy_super(s);
+			goto out1;
+		}
+		if (!grab_super(old))
+			goto restart;
+		destroy_super(s);
+		blkdev_put(bdev, BDEV_FS);
+		path_release(&nd);
+		return old;
+	}
+	s->s_dev = dev;
+	s->s_bdev = bdev;
+	s->s_flags = flags;
+	insert_super(s, fs_type);
+	if (!fs_type->read_super(s, data, flags & MS_VERBOSE ? 1 : 0))
+		goto Einval;
+	s->s_flags |= MS_ACTIVE;
+	path_release(&nd);
+	return s;
+
+Einval:
+	deactivate_super(s);
+	remove_super(s);
+	error = -EINVAL;
+	goto out;
+out1:
+	blkdev_put(bdev, BDEV_FS);
+out:
+	path_release(&nd);
+	return ERR_PTR(error);
+}
+
+static struct super_block *get_sb_nodev(struct file_system_type *fs_type,
+	int flags, char *dev_name, void *data)
+{
+	struct super_block *s = get_anon_super(fs_type, NULL, NULL);
+
+	if (IS_ERR(s))
+		return s;
+
+	s->s_flags = flags;
+	if (!fs_type->read_super(s, data, flags & MS_VERBOSE ? 1 : 0)) {
+		deactivate_super(s);
+		remove_super(s);
+		return ERR_PTR(-EINVAL);
+	}
+	s->s_flags |= MS_ACTIVE;
+	return s;
+}
+
+static int compare_single(struct super_block *s, void *p)
+{
+	return 1;
+}
+
+static struct super_block *get_sb_single(struct file_system_type *fs_type,
+	int flags, char *dev_name, void *data)
+{
+	struct super_block *s = get_anon_super(fs_type, compare_single, NULL);
+
+	if (IS_ERR(s))
+		return s;
+	if (!s->s_root) {
+		s->s_flags = flags;
+		if (!fs_type->read_super(s, data, flags & MS_VERBOSE ? 1 : 0)) {
+			deactivate_super(s);
+			remove_super(s);
+			return ERR_PTR(-EINVAL);
+		}
+		s->s_flags |= MS_ACTIVE;
+	}
+	do_remount_sb(s, flags, data);
+	return s;
+}
+
+struct vfsmount *
+do_kern_mount(const char *fstype, int flags, char *name, void *data)
+{
+	struct file_system_type *type = get_fs_type(fstype);
+	struct super_block *sb = ERR_PTR(-ENOMEM);
+	struct vfsmount *mnt;
+
+	if (!type)
+		return ERR_PTR(-ENODEV);
+
+	mnt = alloc_vfsmnt(name);
+	if (!mnt)
+		goto out;
+	if (type->fs_flags & FS_REQUIRES_DEV)
+		sb = get_sb_bdev(type, flags, name, data);
+	else if (type->fs_flags & FS_SINGLE)
+		sb = get_sb_single(type, flags, name, data);
+	else
+		sb = get_sb_nodev(type, flags, name, data);
+	if (IS_ERR(sb))
+		goto out_mnt;
+	if (type->fs_flags & FS_NOMOUNT)
+		sb->s_flags |= MS_NOUSER;
+	mnt->mnt_sb = sb;
+	mnt->mnt_root = dget(sb->s_root);
+	mnt->mnt_mountpoint = sb->s_root;
+	mnt->mnt_parent = mnt;
+	up_write(&sb->s_umount);
+	put_filesystem(type);
+	return mnt;
+out_mnt:
+	free_vfsmnt(mnt);
+out:
+	put_filesystem(type);
+	return (struct vfsmount *)sb;
+}
+
+void kill_super(struct super_block *sb)
+{
+	struct dentry *root = sb->s_root;
+	struct file_system_type *fs = sb->s_type;
+	struct super_operations *sop = sb->s_op;
+
+	if (!deactivate_super(sb))
+		return;
+
+	down_write(&sb->s_umount);
+	sb->s_root = NULL;
+	/* Need to clean after the sucker */
+	if (fs->fs_flags & FS_LITTER)
+		d_genocide(root);
+	shrink_dcache_parent(root);
+	dput(root);
+	fsync_super(sb);
+	lock_super(sb);
+	lock_kernel();
+	sb->s_flags &= ~MS_ACTIVE;
+	invalidate_inodes(sb);	/* bad name - it should be evict_inodes() */
+	if (sop) {
+		if (sop->write_super && sb->s_dirt)
+			sop->write_super(sb);
+		if (sop->put_super)
+			sop->put_super(sb);
+	}
+
+	/* Forget any remaining inodes */
+	if (invalidate_inodes(sb)) {
+		printk(KERN_ERR "VFS: Busy inodes after unmount. "
+			"Self-destruct in 5 seconds.  Have a nice day...\n");
+	}
+
+	unlock_kernel();
+	unlock_super(sb);
+	remove_super(sb);
+}
+
+struct vfsmount *kern_mount(struct file_system_type *type)
+{
+	return do_kern_mount(type->name, 0, (char *)type->name, NULL);
+}
diff --git a/fs/sysv/CHANGES b/fs/sysv/CHANGES
new file mode 100644
index 00000000000000..3cbcd7b9da18bd
--- /dev/null
+++ b/fs/sysv/CHANGES
@@ -0,0 +1,60 @@
+Mon, 15 Dec 1997	  Krzysztof G. Baranowski <kgb@manjak.knm.org.pl>
+	*    namei.c: struct sysv_dir_inode_operations updated to use dentries.
+
+Fri, 23 Jan 1998   Krzysztof G. Baranowski <kgb@manjak.knm.org.pl>
+	*    inode.c: corrected 1 track offset setting (in sb->sv_block_base).
+		      Originally it was overridden (by setting to zero)
+		      in detected_[xenix,sysv4,sysv2,coherent]. Thanks
+		      to Andrzej Krzysztofowicz <ankry@mif.pg.gda.pl>
+		      for identifying the problem.
+
+Tue, 27 Jan 1998   Krzysztof G. Baranowski <kgb@manjak.knm.org.pl>
+        *    inode.c: added 2048-byte block support to SystemV FS.
+		      Merged detected_bs[512,1024,2048]() into one function:
+		      void detected_bs (u_char type, struct super_block *sb).
+		      Thanks to Andrzej Krzysztofowicz <ankry@mif.pg.gda.pl>
+		      for the patch.
+
+Wed, 4 Feb 1998   Krzysztof G. Baranowski <kgb@manjak.knm.org.pl>
+	*    namei.c: removed static subdir(); is_subdir() from dcache.c
+		      is used instead. Cosmetic changes.
+
+Thu, 3 Dec 1998   Al Viro (viro@math.psu.edu)
+	*    namei.c (sysv_rmdir):
+		      Bugectomy: old check for victim being busy
+		      (inode->i_count) wasn't replaced (with checking
+		      dentry->d_count) and escaped Linus in the last round
+		      of changes. Shot and buried.
+
+Wed, 9 Dec 1998   AV
+	*    namei.c (do_sysv_rename):
+		       Fixed incorrect check for other owners + race.
+		       Removed checks that went to VFS.
+	*    namei.c (sysv_unlink):
+		       Removed checks that went to VFS.
+
+Thu, 10 Dec 1998   AV
+	*    namei.c (do_mknod):
+			Removed dead code - mknod is never asked to
+			create a symlink or directory. Incidentially,
+			it wouldn't do it right if it would be called.
+
+Sat, 26 Dec 1998   KGB
+	*    inode.c (detect_sysv4):
+			Added detection of expanded s_type field (0x10,
+			0x20 and 0x30).  Forced read-only access in this case.
+
+Sun, 21 Mar 1999   AV
+	*    namei.c (sysv_link):
+			Fixed i_count usage that resulted in dcache corruption.
+	*    inode.c:
+			Filled ->delete_inode() method with sysv_delete_inode().
+			sysv_put_inode() is gone, as it tried to do ->delete_
+			_inode()'s job.
+	*    ialloc.c: (sysv_free_inode):
+			Fixed race.
+
+Sun, 30 Apr 1999   AV
+	*    namei.c (sysv_mknod):
+			Removed dead code (S_IFREG case is now passed to
+			->create() by VFS).
diff --git a/fs/sysv/ChangeLog b/fs/sysv/ChangeLog
new file mode 100644
index 00000000000000..931045ae37ca42
--- /dev/null
+++ b/fs/sysv/ChangeLog
@@ -0,0 +1,29 @@
+Thu Jan 10 2002  Andrew Morton  <akpm@zip.com.au>
+
+	* dir_commit_chunk(): call writeout_one_page() as well as
+	  waitfor_one_page() for IS_SYNC directories, so that we
+	  actually do sync the directory.
+
+Sat Dec 15 2001  Christoph Hellwig  <hch@infradead.org>
+
+	* inode.c (sysv_read_inode): Mark inode as bad in case of failure.
+	* super.c (complete_read_super): Check for bad root inode.
+
+Wed Nov 21 2001  Andrew Morton  <andrewm@uow.edu.au>
+
+	* file.c (sysv_sync_file): Call fsync_inode_data_buffers.
+
+Fri Oct 26 2001  Christoph Hellwig  <hch@infradead.org>
+
+	* dir.c, ialloc.c, namei.c, include/linux/sysv_fs_i.h:
+	Implement per-Inode lookup offset cache.
+	Modelled after Ted's ext2 patch.
+
+Fri Oct 26 2001  Christoph Hellwig  <hch@infradead.org>
+
+	* inode.c, super.c, include/linux/sysv_fs.h,
+	  include/linux/sysv_fs_sb.h:
+	Remove symlink faking.	Noone really wants to use these as
+	linux filesystems and native OSes don't support it anyway.
+
+
diff --git a/fs/sysv/INTRO b/fs/sysv/INTRO
new file mode 100644
index 00000000000000..de4e4d17cac6f7
--- /dev/null
+++ b/fs/sysv/INTRO
@@ -0,0 +1,182 @@
+This is the implementation of the SystemV/Coherent filesystem for Linux.
+It grew out of separate filesystem implementations
+
+    Xenix FS      Doug Evans <dje@cygnus.com>  June 1992
+    SystemV FS    Paul B. Monday <pmonday@eecs.wsu.edu> March-June 1993
+    Coherent FS   B. Haible <haible@ma2s2.mathematik.uni-karlsruhe.de> June 1993
+
+and was merged together in July 1993.
+
+These filesystems are rather similar. Here is a comparison with Minix FS:
+
+* Linux fdisk reports on partitions
+  - Minix FS     0x81 Linux/Minix
+  - Xenix FS     ??
+  - SystemV FS   ??
+  - Coherent FS  0x08 AIX bootable
+
+* Size of a block or zone (data allocation unit on disk)
+  - Minix FS     1024
+  - Xenix FS     1024 (also 512 ??)
+  - SystemV FS   1024 (also 512 and 2048)
+  - Coherent FS   512
+
+* General layout: all have one boot block, one super block and
+  separate areas for inodes and for directories/data.
+  On SystemV Release 2 FS (e.g. Microport) the first track is reserved and
+  all the block numbers (including the super block) are offset by one track.
+
+* Byte ordering of "short" (16 bit entities) on disk:
+  - Minix FS     little endian  0 1
+  - Xenix FS     little endian  0 1
+  - SystemV FS   little endian  0 1
+  - Coherent FS  little endian  0 1
+  Of course, this affects only the file system, not the data of files on it!
+
+* Byte ordering of "long" (32 bit entities) on disk:
+  - Minix FS     little endian  0 1 2 3
+  - Xenix FS     little endian  0 1 2 3
+  - SystemV FS   little endian  0 1 2 3
+  - Coherent FS  PDP-11         2 3 0 1
+  Of course, this affects only the file system, not the data of files on it!
+
+* Inode on disk: "short", 0 means non-existent, the root dir ino is:
+  - Minix FS                            1
+  - Xenix FS, SystemV FS, Coherent FS   2
+
+* Maximum number of hard links to a file:
+  - Minix FS     250
+  - Xenix FS     ??
+  - SystemV FS   ??
+  - Coherent FS  >=10000
+
+* Free inode management:
+  - Minix FS                             a bitmap
+  - Xenix FS, SystemV FS, Coherent FS
+      There is a cache of a certain number of free inodes in the super-block.
+      When it is exhausted, new free inodes are found using a linear search.
+
+* Free block management:
+  - Minix FS                             a bitmap
+  - Xenix FS, SystemV FS, Coherent FS
+      Free blocks are organized in a "free list". Maybe a misleading term,
+      since it is not true that every free block contains a pointer to
+      the next free block. Rather, the free blocks are organized in chunks
+      of limited size, and every now and then a free block contains pointers
+      to the free blocks pertaining to the next chunk; the first of these
+      contains pointers and so on. The list terminates with a "block number"
+      0 on Xenix FS and SystemV FS, with a block zeroed out on Coherent FS.
+
+* Super-block location:
+  - Minix FS     block 1 = bytes 1024..2047
+  - Xenix FS     block 1 = bytes 1024..2047
+  - SystemV FS   bytes 512..1023
+  - Coherent FS  block 1 = bytes 512..1023
+
+* Super-block layout:
+  - Minix FS
+                    unsigned short s_ninodes;
+                    unsigned short s_nzones;
+                    unsigned short s_imap_blocks;
+                    unsigned short s_zmap_blocks;
+                    unsigned short s_firstdatazone;
+                    unsigned short s_log_zone_size;
+                    unsigned long s_max_size;
+                    unsigned short s_magic;
+  - Xenix FS, SystemV FS, Coherent FS
+                    unsigned short s_firstdatazone;
+                    unsigned long  s_nzones;
+                    unsigned short s_fzone_count;
+                    unsigned long  s_fzones[NICFREE];
+                    unsigned short s_finode_count;
+                    unsigned short s_finodes[NICINOD];
+                    char           s_flock;
+                    char           s_ilock;
+                    char           s_modified;
+                    char           s_rdonly;
+                    unsigned long  s_time;
+                    short          s_dinfo[4]; -- SystemV FS only
+                    unsigned long  s_free_zones;
+                    unsigned short s_free_inodes;
+                    short          s_dinfo[4]; -- Xenix FS only
+                    unsigned short s_interleave_m,s_interleave_n; -- Coherent FS only
+                    char           s_fname[6];
+                    char           s_fpack[6];
+    then they differ considerably:
+        Xenix FS
+                    char           s_clean;
+                    char           s_fill[371];
+                    long           s_magic;
+                    long           s_type;
+        SystemV FS
+                    long           s_fill[12 or 14];
+                    long           s_state;
+                    long           s_magic;
+                    long           s_type;
+        Coherent FS
+                    unsigned long  s_unique;
+    Note that Coherent FS has no magic.
+
+* Inode layout:
+  - Minix FS
+                    unsigned short i_mode;
+                    unsigned short i_uid;
+                    unsigned long  i_size;
+                    unsigned long  i_time;
+                    unsigned char  i_gid;
+                    unsigned char  i_nlinks;
+                    unsigned short i_zone[7+1+1];
+  - Xenix FS, SystemV FS, Coherent FS
+                    unsigned short i_mode;
+                    unsigned short i_nlink;
+                    unsigned short i_uid;
+                    unsigned short i_gid;
+                    unsigned long  i_size;
+                    unsigned char  i_zone[3*(10+1+1+1)];
+                    unsigned long  i_atime;
+                    unsigned long  i_mtime;
+                    unsigned long  i_ctime;
+
+* Regular file data blocks are organized as
+  - Minix FS
+               7 direct blocks
+               1 indirect block (pointers to blocks)
+               1 double-indirect block (pointer to pointers to blocks)
+  - Xenix FS, SystemV FS, Coherent FS
+              10 direct blocks
+               1 indirect block (pointers to blocks)
+               1 double-indirect block (pointer to pointers to blocks)
+               1 triple-indirect block (pointer to pointers to pointers to blocks)
+
+* Inode size, inodes per block
+  - Minix FS        32   32
+  - Xenix FS        64   16
+  - SystemV FS      64   16
+  - Coherent FS     64    8
+
+* Directory entry on disk
+  - Minix FS
+                    unsigned short inode;
+                    char name[14/30];
+  - Xenix FS, SystemV FS, Coherent FS
+                    unsigned short inode;
+                    char name[14];
+
+* Dir entry size, dir entries per block
+  - Minix FS     16/32    64/32
+  - Xenix FS     16       64
+  - SystemV FS   16       64
+  - Coherent FS  16       32
+
+* How to implement symbolic links such that the host fsck doesn't scream:
+  - Minix FS     normal
+  - Xenix FS     kludge: as regular files with  chmod 1000
+  - SystemV FS   ??
+  - Coherent FS  kludge: as regular files with  chmod 1000
+
+
+Notation: We often speak of a "block" but mean a zone (the allocation unit)
+and not the disk driver's notion of "block".
+
+
+Bruno Haible  <haible@ma2s2.mathematik.uni-karlsruhe.de>
diff --git a/fs/sysv/Makefile b/fs/sysv/Makefile
new file mode 100644
index 00000000000000..4c574eda024218
--- /dev/null
+++ b/fs/sysv/Makefile
@@ -0,0 +1,16 @@
+#
+# Makefile for the Linux SystemV/Coherent filesystem routines.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile.
+
+O_TARGET := sysv.o
+
+obj-y   := ialloc.o balloc.o inode.o itree.o file.o dir.o \
+	   namei.o super.o symlink.o
+obj-m   := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/sysv/balloc.c b/fs/sysv/balloc.c
new file mode 100644
index 00000000000000..2f3df11dd2079c
--- /dev/null
+++ b/fs/sysv/balloc.c
@@ -0,0 +1,235 @@
+/*
+ *  linux/fs/sysv/balloc.c
+ *
+ *  minix/bitmap.c
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  ext/freelists.c
+ *  Copyright (C) 1992  Remy Card (card@masi.ibp.fr)
+ *
+ *  xenix/alloc.c
+ *  Copyright (C) 1992  Doug Evans
+ *
+ *  coh/alloc.c
+ *  Copyright (C) 1993  Pascal Haible, Bruno Haible
+ *
+ *  sysv/balloc.c
+ *  Copyright (C) 1993  Bruno Haible
+ *
+ *  This file contains code for allocating/freeing blocks.
+ */
+
+#include <linux/fs.h>
+#include <linux/sysv_fs.h>
+#include <linux/locks.h>
+
+/* We don't trust the value of
+   sb->sv_sbd2->s_tfree = *sb->sv_free_blocks
+   but we nevertheless keep it up to date. */
+
+static inline u32 *get_chunk(struct super_block *sb, struct buffer_head *bh)
+{
+	char *bh_data = bh->b_data;
+
+	if (sb->sv_type == FSTYPE_SYSV4)
+		return (u32*)(bh_data+4);
+	else
+		return (u32*)(bh_data+2);
+}
+
+/* NOTE NOTE NOTE: nr is a block number _as_ _stored_ _on_ _disk_ */
+
+void sysv_free_block(struct super_block * sb, u32 nr)
+{
+	struct buffer_head * bh;
+	u32 *blocks = sb->sv_bcache;
+	unsigned count;
+	unsigned block = fs32_to_cpu(sb, nr);
+
+	/*
+	 * This code does not work at all for AFS (it has a bitmap
+	 * free list).  As AFS is supposed to be read-only no one
+	 * should call this for an AFS filesystem anyway...
+	 */
+	if (sb->sv_type == FSTYPE_AFS)
+		return;
+
+	if (block < sb->sv_firstdatazone || block >= sb->sv_nzones) {
+		printk("sysv_free_block: trying to free block not in datazone\n");
+		return;
+	}
+
+	lock_super(sb);
+	count = fs16_to_cpu(sb, *sb->sv_bcache_count);
+
+	if (count > sb->sv_flc_size) {
+		printk("sysv_free_block: flc_count > flc_size\n");
+		unlock_super(sb);
+		return;
+	}
+	/* If the free list head in super-block is full, it is copied
+	 * into this block being freed, ditto if it's completely empty
+	 * (applies only on Coherent).
+	 */
+	if (count == sb->sv_flc_size || count == 0) {
+		block += sb->sv_block_base;
+		bh = sb_getblk(sb, block);
+		if (!bh) {
+			printk("sysv_free_block: getblk() failed\n");
+			unlock_super(sb);
+			return;
+		}
+		memset(bh->b_data, 0, sb->s_blocksize);
+		*(u16*)bh->b_data = cpu_to_fs16(sb, count);
+		memcpy(get_chunk(sb,bh), blocks, count * sizeof(sysv_zone_t));
+		mark_buffer_dirty(bh);
+		mark_buffer_uptodate(bh, 1);
+		brelse(bh);
+		count = 0;
+	}
+	sb->sv_bcache[count++] = nr;
+
+	*sb->sv_bcache_count = cpu_to_fs16(sb, count);
+	fs32_add(sb, sb->sv_free_blocks, 1);
+	dirty_sb(sb);
+	unlock_super(sb);
+}
+
+u32 sysv_new_block(struct super_block * sb)
+{
+	unsigned int block;
+	u32 nr;
+	struct buffer_head * bh;
+	unsigned count;
+
+	lock_super(sb);
+	count = fs16_to_cpu(sb, *sb->sv_bcache_count);
+
+	if (count == 0) /* Applies only to Coherent FS */
+		goto Enospc;
+	nr = sb->sv_bcache[--count];
+	if (nr == 0)  /* Applies only to Xenix FS, SystemV FS */
+		goto Enospc;
+
+	block = fs32_to_cpu(sb, nr);
+
+	*sb->sv_bcache_count = cpu_to_fs16(sb, count);
+
+	if (block < sb->sv_firstdatazone || block >= sb->sv_nzones) {
+		printk("sysv_new_block: new block %d is not in data zone\n",
+			block);
+		goto Enospc;
+	}
+
+	if (count == 0) { /* the last block continues the free list */
+		unsigned count;
+
+		block += sb->sv_block_base;
+		if (!(bh = sb_bread(sb, block))) {
+			printk("sysv_new_block: cannot read free-list block\n");
+			/* retry this same block next time */
+			*sb->sv_bcache_count = cpu_to_fs16(sb, 1);
+			goto Enospc;
+		}
+		count = fs16_to_cpu(sb, *(u16*)bh->b_data);
+		if (count > sb->sv_flc_size) {
+			printk("sysv_new_block: free-list block with >flc_size entries\n");
+			brelse(bh);
+			goto Enospc;
+		}
+		*sb->sv_bcache_count = cpu_to_fs16(sb, count);
+		memcpy(sb->sv_bcache, get_chunk(sb, bh),
+				count * sizeof(sysv_zone_t));
+		brelse(bh);
+	}
+	/* Now the free list head in the superblock is valid again. */
+	fs32_add(sb, sb->sv_free_blocks, -1);
+	dirty_sb(sb);
+	unlock_super(sb);
+	return nr;
+
+Enospc:
+	unlock_super(sb);
+	return 0;
+}
+
+unsigned long sysv_count_free_blocks(struct super_block * sb)
+{
+	int sb_count;
+	int count;
+	struct buffer_head * bh = NULL;
+	u32 *blocks;
+	unsigned block;
+	int n;
+
+	/*
+	 * This code does not work at all for AFS (it has a bitmap
+	 * free list).  As AFS is supposed to be read-only we just
+	 * lie and say it has no free block at all.
+	 */
+	if (sb->sv_type == FSTYPE_AFS)
+		return 0;
+
+	lock_super(sb);
+	sb_count = fs32_to_cpu(sb, *sb->sv_free_blocks);
+
+	if (0)
+		goto trust_sb;
+
+	/* this causes a lot of disk traffic ... */
+	count = 0;
+	n = fs16_to_cpu(sb, *sb->sv_bcache_count);
+	blocks = sb->sv_bcache;
+	while (1) {
+		if (n > sb->sv_flc_size)
+			goto E2big;
+		block = 0;
+		while (n && (block = blocks[--n]) != 0)
+			count++;
+		if (block == 0)
+			break;
+
+		block = fs32_to_cpu(sb, block);
+		if (bh)
+			brelse(bh);
+
+		if (block < sb->sv_firstdatazone || block >= sb->sv_nzones)
+			goto Einval;
+		block += sb->sv_block_base;
+		bh = sb_bread(sb, block);
+		if (!bh)
+			goto Eio;
+		n = fs16_to_cpu(sb, *(u16*)bh->b_data);
+		blocks = get_chunk(sb, bh);
+	}
+	if (bh)
+		brelse(bh);
+	if (count != sb_count)
+		goto Ecount;
+done:
+	unlock_super(sb);
+	return count;
+
+Einval:
+	printk("sysv_count_free_blocks: new block %d is not in data zone\n",
+		block);
+	goto trust_sb;
+Eio:
+	printk("sysv_count_free_blocks: cannot read free-list block\n");
+	goto trust_sb;
+E2big:
+	printk("sysv_count_free_blocks: >flc_size entries in free-list block\n");
+	if (bh)
+		brelse(bh);
+trust_sb:
+	count = sb_count;
+	goto done;
+Ecount:
+	printk("sysv_count_free_blocks: free block count was %d, "
+		"correcting to %d\n", sb_count, count);
+	if (!(sb->s_flags & MS_RDONLY)) {
+		*sb->sv_free_blocks = cpu_to_fs32(sb, count);
+		dirty_sb(sb);
+	}
+	goto done;
+}
diff --git a/fs/sysv/dir.c b/fs/sysv/dir.c
new file mode 100644
index 00000000000000..2a826bcc0f227c
--- /dev/null
+++ b/fs/sysv/dir.c
@@ -0,0 +1,386 @@
+/*
+ *  linux/fs/sysv/dir.c
+ *
+ *  minix/dir.c
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  coh/dir.c
+ *  Copyright (C) 1993  Pascal Haible, Bruno Haible
+ *
+ *  sysv/dir.c
+ *  Copyright (C) 1993  Bruno Haible
+ *
+ *  SystemV/Coherent directory handling functions
+ */
+
+#include <linux/fs.h>
+#include <linux/sysv_fs.h>
+#include <linux/pagemap.h>
+
+static int sysv_readdir(struct file *, void *, filldir_t);
+
+struct file_operations sysv_dir_operations = {
+	read:		generic_read_dir,
+	readdir:	sysv_readdir,
+	fsync:		sysv_sync_file,
+};
+
+static inline void dir_put_page(struct page *page)
+{
+	kunmap(page);
+	page_cache_release(page);
+}
+
+static inline unsigned long dir_pages(struct inode *inode)
+{
+	return (inode->i_size+PAGE_CACHE_SIZE-1)>>PAGE_CACHE_SHIFT;
+}
+
+static int dir_commit_chunk(struct page *page, unsigned from, unsigned to)
+{
+	struct inode *dir = (struct inode *)page->mapping->host;
+	int err = 0;
+
+	dir->i_version = ++event;
+	page->mapping->a_ops->commit_write(NULL, page, from, to);
+	if (IS_SYNC(dir)) {
+		int err2;
+		err = writeout_one_page(page);
+		err2 = waitfor_one_page(page);
+		if (err == 0)
+			err = err2;
+	}
+	return err;
+}
+
+static struct page * dir_get_page(struct inode *dir, unsigned long n)
+{
+	struct address_space *mapping = dir->i_mapping;
+	struct page *page = read_cache_page(mapping, n,
+				(filler_t*)mapping->a_ops->readpage, NULL);
+	if (!IS_ERR(page)) {
+		wait_on_page(page);
+		kmap(page);
+		if (!Page_Uptodate(page))
+			goto fail;
+	}
+	return page;
+
+fail:
+	dir_put_page(page);
+	return ERR_PTR(-EIO);
+}
+
+static int sysv_readdir(struct file * filp, void * dirent, filldir_t filldir)
+{
+	unsigned long pos = filp->f_pos;
+	struct inode *inode = filp->f_dentry->d_inode;
+	struct super_block *sb = inode->i_sb;
+	unsigned offset = pos & ~PAGE_CACHE_MASK;
+	unsigned long n = pos >> PAGE_CACHE_SHIFT;
+	unsigned long npages = dir_pages(inode);
+
+	pos = (pos + SYSV_DIRSIZE-1) & ~(SYSV_DIRSIZE-1);
+	if (pos >= inode->i_size)
+		goto done;
+
+	for ( ; n < npages; n++, offset = 0) {
+		char *kaddr, *limit;
+		struct sysv_dir_entry *de;
+		struct page *page = dir_get_page(inode, n);
+
+		if (IS_ERR(page))
+			continue;
+		kaddr = (char *)page_address(page);
+		de = (struct sysv_dir_entry *)(kaddr+offset);
+		limit = kaddr + PAGE_CACHE_SIZE - SYSV_DIRSIZE;
+		for ( ;(char*)de <= limit; de++) {
+			char *name = de->name;
+			int over;
+
+			if (!de->inode)
+				continue;
+
+			offset = (char *)de - kaddr;
+
+			over = filldir(dirent, name, strnlen(name,SYSV_NAMELEN),
+					(n<<PAGE_CACHE_SHIFT) | offset,
+					fs16_to_cpu(sb, de->inode), DT_UNKNOWN);
+			if (over) {
+				dir_put_page(page);
+				goto done;
+			}
+		}
+		dir_put_page(page);
+	}
+
+done:
+	filp->f_pos = (n << PAGE_CACHE_SHIFT) | offset;
+	filp->f_version = inode->i_version;
+	UPDATE_ATIME(inode);
+	return 0;
+}
+
+/* compare strings: name[0..len-1] (not zero-terminated) and
+ * buffer[0..] (filled with zeroes up to buffer[0..maxlen-1])
+ */
+static inline int namecompare(int len, int maxlen,
+	const char * name, const char * buffer)
+{
+	if (len < maxlen && buffer[len])
+		return 0;
+	return !memcmp(name, buffer, len);
+}
+
+/*
+ *	sysv_find_entry()
+ *
+ * finds an entry in the specified directory with the wanted name. It
+ * returns the cache buffer in which the entry was found, and the entry
+ * itself (as a parameter - res_dir). It does NOT read the inode of the
+ * entry - you'll have to do that yourself if you want to.
+ */
+struct sysv_dir_entry *sysv_find_entry(struct dentry *dentry, struct page **res_page)
+{
+	const char * name = dentry->d_name.name;
+	int namelen = dentry->d_name.len;
+	struct inode * dir = dentry->d_parent->d_inode;
+	unsigned long start, n;
+	unsigned long npages = dir_pages(dir);
+	struct page *page = NULL;
+	struct sysv_dir_entry *de;
+
+	*res_page = NULL;
+
+	start = dir->u.sysv_i.i_dir_start_lookup;
+	if (start >= npages)
+		start = 0;
+	n = start;
+
+	do {
+		char *kaddr;
+		page = dir_get_page(dir, n);
+		if (!IS_ERR(page)) {
+			kaddr = (char*)page_address(page);
+			de = (struct sysv_dir_entry *) kaddr;
+			kaddr += PAGE_CACHE_SIZE - SYSV_DIRSIZE;
+			for ( ; (char *) de <= kaddr ; de++) {
+				if (!de->inode)
+					continue;
+				if (namecompare(namelen, SYSV_NAMELEN,
+							name, de->name))
+					goto found;
+			}
+		}
+		dir_put_page(page);
+
+		if (++n >= npages)
+			n = 0;
+	} while (n != start);
+
+	return NULL;
+
+found:
+	dir->u.sysv_i.i_dir_start_lookup = n;
+	*res_page = page;
+	return de;
+}
+
+int sysv_add_link(struct dentry *dentry, struct inode *inode)
+{
+	struct inode *dir = dentry->d_parent->d_inode;
+	const char * name = dentry->d_name.name;
+	int namelen = dentry->d_name.len;
+	struct page *page = NULL;
+	struct sysv_dir_entry * de;
+	unsigned long npages = dir_pages(dir);
+	unsigned long n;
+	char *kaddr;
+	unsigned from, to;
+	int err;
+
+	/* We take care of directory expansion in the same loop */
+	for (n = 0; n <= npages; n++) {
+		page = dir_get_page(dir, n);
+		err = PTR_ERR(page);
+		if (IS_ERR(page))
+			goto out;
+		kaddr = (char*)page_address(page);
+		de = (struct sysv_dir_entry *)kaddr;
+		kaddr += PAGE_CACHE_SIZE - SYSV_DIRSIZE;
+		while ((char *)de <= kaddr) {
+			if (!de->inode)
+				goto got_it;
+			err = -EEXIST;
+			if (namecompare(namelen, SYSV_NAMELEN, name, de->name)) 
+				goto out_page;
+			de++;
+		}
+		dir_put_page(page);
+	}
+	BUG();
+	return -EINVAL;
+
+got_it:
+	from = (char*)de - (char*)page_address(page);
+	to = from + SYSV_DIRSIZE;
+	lock_page(page);
+	err = page->mapping->a_ops->prepare_write(NULL, page, from, to);
+	if (err)
+		goto out_unlock;
+	memcpy (de->name, name, namelen);
+	memset (de->name + namelen, 0, SYSV_DIRSIZE - namelen - 2);
+	de->inode = cpu_to_fs16(inode->i_sb, inode->i_ino);
+	err = dir_commit_chunk(page, from, to);
+	dir->i_mtime = dir->i_ctime = CURRENT_TIME;
+	mark_inode_dirty(dir);
+out_unlock:
+	UnlockPage(page);
+out_page:
+	dir_put_page(page);
+out:
+	return err;
+}
+
+int sysv_delete_entry(struct sysv_dir_entry *de, struct page *page)
+{
+	struct address_space *mapping = page->mapping;
+	struct inode *inode = (struct inode*)mapping->host;
+	char *kaddr = (char*)page_address(page);
+	unsigned from = (char*)de - kaddr;
+	unsigned to = from + SYSV_DIRSIZE;
+	int err;
+
+	lock_page(page);
+	err = mapping->a_ops->prepare_write(NULL, page, from, to);
+	if (err)
+		BUG();
+	de->inode = 0;
+	err = dir_commit_chunk(page, from, to);
+	UnlockPage(page);
+	dir_put_page(page);
+	inode->i_ctime = inode->i_mtime = CURRENT_TIME;
+	mark_inode_dirty(inode);
+	return err;
+}
+
+int sysv_make_empty(struct inode *inode, struct inode *dir)
+{
+	struct address_space *mapping = inode->i_mapping;
+	struct page *page = grab_cache_page(mapping, 0);
+	struct sysv_dir_entry * de;
+	char *base;
+	int err;
+
+	if (!page)
+		return -ENOMEM;
+	err = mapping->a_ops->prepare_write(NULL, page, 0, 2 * SYSV_DIRSIZE);
+	if (err)
+		goto fail;
+
+	base = (char*)page_address(page);
+	memset(base, 0, PAGE_CACHE_SIZE);
+
+	de = (struct sysv_dir_entry *) base;
+	de->inode = cpu_to_fs16(inode->i_sb, inode->i_ino);
+	strcpy(de->name,".");
+	de++;
+	de->inode = cpu_to_fs16(inode->i_sb, dir->i_ino);
+	strcpy(de->name,"..");
+
+	err = dir_commit_chunk(page, 0, 2 * SYSV_DIRSIZE);
+fail:
+	UnlockPage(page);
+	page_cache_release(page);
+	return err;
+}
+
+/*
+ * routine to check that the specified directory is empty (for rmdir)
+ */
+int sysv_empty_dir(struct inode * inode)
+{
+	struct super_block *sb = inode->i_sb;
+	struct page *page = NULL;
+	unsigned long i, npages = dir_pages(inode);
+
+	for (i = 0; i < npages; i++) {
+		char *kaddr;
+		struct sysv_dir_entry * de;
+		page = dir_get_page(inode, i);
+
+		if (IS_ERR(page))
+			continue;
+
+		kaddr = (char *)page_address(page);
+		de = (struct sysv_dir_entry *)kaddr;
+		kaddr += PAGE_CACHE_SIZE-SYSV_DIRSIZE;
+
+		for ( ;(char *)de <= kaddr; de++) {
+			if (!de->inode)
+				continue;
+			/* check for . and .. */
+			if (de->name[0] != '.')
+				goto not_empty;
+			if (!de->name[1]) {
+				if (de->inode == cpu_to_fs16(sb, inode->i_ino))
+					continue;
+				goto not_empty;
+			}
+			if (de->name[1] != '.' || de->name[2])
+				goto not_empty;
+		}
+		dir_put_page(page);
+	}
+	return 1;
+
+not_empty:
+	dir_put_page(page);
+	return 0;
+}
+
+/* Releases the page */
+void sysv_set_link(struct sysv_dir_entry *de, struct page *page,
+	struct inode *inode)
+{
+	struct inode *dir = (struct inode*)page->mapping->host;
+	unsigned from = (char *)de-(char*)page_address(page);
+	unsigned to = from + SYSV_DIRSIZE;
+	int err;
+
+	lock_page(page);
+	err = page->mapping->a_ops->prepare_write(NULL, page, from, to);
+	if (err)
+		BUG();
+	de->inode = cpu_to_fs16(inode->i_sb, inode->i_ino);
+	err = dir_commit_chunk(page, from, to);
+	UnlockPage(page);
+	dir_put_page(page);
+	dir->i_mtime = dir->i_ctime = CURRENT_TIME;
+	mark_inode_dirty(dir);
+}
+
+struct sysv_dir_entry * sysv_dotdot (struct inode *dir, struct page **p)
+{
+	struct page *page = dir_get_page(dir, 0);
+	struct sysv_dir_entry *de = NULL;
+
+	if (!IS_ERR(page)) {
+		de = (struct sysv_dir_entry*) page_address(page) + 1;
+		*p = page;
+	}
+	return de;
+}
+
+ino_t sysv_inode_by_name(struct dentry *dentry)
+{
+	struct page *page;
+	struct sysv_dir_entry *de = sysv_find_entry (dentry, &page);
+	ino_t res = 0;
+	
+	if (de) {
+		res = fs16_to_cpu(dentry->d_sb, de->inode);
+		dir_put_page(page);
+	}
+	return res;
+}
diff --git a/fs/sysv/file.c b/fs/sysv/file.c
new file mode 100644
index 00000000000000..ee1ec8bf62e398
--- /dev/null
+++ b/fs/sysv/file.c
@@ -0,0 +1,49 @@
+/*
+ *  linux/fs/sysv/file.c
+ *
+ *  minix/file.c
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  coh/file.c
+ *  Copyright (C) 1993  Pascal Haible, Bruno Haible
+ *
+ *  sysv/file.c
+ *  Copyright (C) 1993  Bruno Haible
+ *
+ *  SystemV/Coherent regular file handling primitives
+ */
+
+#include <linux/fs.h>
+#include <linux/sysv_fs.h>
+
+/*
+ * We have mostly NULLs here: the current defaults are OK for
+ * the coh filesystem.
+ */
+struct file_operations sysv_file_operations = {
+	llseek:		generic_file_llseek,
+	read:		generic_file_read,
+	write:		generic_file_write,
+	mmap:		generic_file_mmap,
+	fsync:		sysv_sync_file,
+};
+
+struct inode_operations sysv_file_inode_operations = {
+	truncate:	sysv_truncate,
+};
+
+int sysv_sync_file(struct file * file, struct dentry *dentry, int datasync)
+{
+	struct inode *inode = dentry->d_inode;
+	int err;
+
+	err = fsync_inode_buffers(inode);
+	err |= fsync_inode_data_buffers(inode);
+	if (!(inode->i_state & I_DIRTY))
+		return err;
+	if (datasync && !(inode->i_state & I_DIRTY_DATASYNC))
+		return err;
+	
+	err |= sysv_sync_inode(inode);
+	return err ? -EIO : 0;
+}
diff --git a/fs/sysv/ialloc.c b/fs/sysv/ialloc.c
new file mode 100644
index 00000000000000..474e67ec6501b4
--- /dev/null
+++ b/fs/sysv/ialloc.c
@@ -0,0 +1,232 @@
+/*
+ *  linux/fs/sysv/ialloc.c
+ *
+ *  minix/bitmap.c
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  ext/freelists.c
+ *  Copyright (C) 1992  Remy Card (card@masi.ibp.fr)
+ *
+ *  xenix/alloc.c
+ *  Copyright (C) 1992  Doug Evans
+ *
+ *  coh/alloc.c
+ *  Copyright (C) 1993  Pascal Haible, Bruno Haible
+ *
+ *  sysv/ialloc.c
+ *  Copyright (C) 1993  Bruno Haible
+ *
+ *  This file contains code for allocating/freeing inodes.
+ */
+
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/sysv_fs.h>
+#include <linux/stddef.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <linux/locks.h>
+
+/* We don't trust the value of
+   sb->sv_sbd2->s_tinode = *sb->sv_sb_total_free_inodes
+   but we nevertheless keep it up to date. */
+
+/* An inode on disk is considered free if both i_mode == 0 and i_nlink == 0. */
+
+/* return &sb->sv_sb_fic_inodes[i] = &sbd->s_inode[i]; */
+static inline sysv_ino_t *
+sv_sb_fic_inode(struct super_block * sb, unsigned int i)
+{
+	if (sb->sv_bh1 == sb->sv_bh2)
+		return &sb->sv_sb_fic_inodes[i];
+	else {
+		/* 512 byte Xenix FS */
+		unsigned int offset = offsetof(struct xenix_super_block, s_inode[i]);
+		if (offset < 512)
+			return (sysv_ino_t*)(sb->sv_sbd1 + offset);
+		else
+			return (sysv_ino_t*)(sb->sv_sbd2 + offset);
+	}
+}
+
+struct sysv_inode *
+sysv_raw_inode(struct super_block *sb, unsigned ino, struct buffer_head **bh)
+{
+	struct sysv_inode *res;
+	int block = sb->sv_firstinodezone + sb->sv_block_base;
+	block += (ino-1) >> sb->sv_inodes_per_block_bits;
+	*bh = sb_bread(sb, block);
+	if (!*bh)
+		return NULL;
+	res = (struct sysv_inode *) (*bh)->b_data;
+	return res + ((ino-1) & sb->sv_inodes_per_block_1);
+}
+
+static int refill_free_cache(struct super_block *sb)
+{
+	struct buffer_head * bh;
+	struct sysv_inode * raw_inode;
+	int i = 0, ino;
+
+	ino = SYSV_ROOT_INO+1;
+	raw_inode = sysv_raw_inode(sb, ino, &bh);
+	if (!raw_inode)
+		goto out;
+	while (ino <= sb->sv_ninodes) {
+		if (raw_inode->i_mode == 0 && raw_inode->i_nlink == 0) {
+			*sv_sb_fic_inode(sb,i++) = cpu_to_fs16(sb, ino);
+			if (i == sb->sv_fic_size)
+				break;
+		}
+		if ((ino++ & sb->sv_inodes_per_block_1) == 0) {
+			brelse(bh);
+			raw_inode = sysv_raw_inode(sb, ino, &bh);
+			if (!raw_inode)
+				goto out;
+		} else
+			raw_inode++;
+	}
+	brelse(bh);
+out:
+	return i;
+}
+
+void sysv_free_inode(struct inode * inode)
+{
+	struct super_block * sb;
+	unsigned int ino;
+	struct buffer_head * bh;
+	struct sysv_inode * raw_inode;
+	unsigned count;
+
+	sb = inode->i_sb;
+	ino = inode->i_ino;
+	if (ino <= SYSV_ROOT_INO || ino > sb->sv_ninodes) {
+		printk("sysv_free_inode: inode 0,1,2 or nonexistent inode\n");
+		return;
+	}
+	raw_inode = sysv_raw_inode(sb, ino, &bh);
+	clear_inode(inode);
+	if (!raw_inode) {
+		printk("sysv_free_inode: unable to read inode block on device "
+		       "%s\n", bdevname(inode->i_dev));
+		return;
+	}
+	lock_super(sb);
+	count = fs16_to_cpu(sb, *sb->sv_sb_fic_count);
+	if (count < sb->sv_fic_size) {
+		*sv_sb_fic_inode(sb,count++) = cpu_to_fs16(sb, ino);
+		*sb->sv_sb_fic_count = cpu_to_fs16(sb, count);
+	}
+	fs16_add(sb, sb->sv_sb_total_free_inodes, 1);
+	dirty_sb(sb);
+	memset(raw_inode, 0, sizeof(struct sysv_inode));
+	mark_buffer_dirty(bh);
+	unlock_super(sb);
+	brelse(bh);
+}
+
+struct inode * sysv_new_inode(const struct inode * dir, mode_t mode)
+{
+	struct inode * inode;
+	struct super_block * sb;
+	u16 ino;
+	unsigned count;
+
+	sb = dir->i_sb;
+	inode = new_inode(sb);
+	if (!inode)
+		return ERR_PTR(-ENOMEM);
+
+	lock_super(sb);
+	count = fs16_to_cpu(sb, *sb->sv_sb_fic_count);
+	if (count == 0 || (*sv_sb_fic_inode(sb,count-1) == 0)) {
+		count = refill_free_cache(sb);
+		if (count == 0) {
+			iput(inode);
+			unlock_super(sb);
+			return ERR_PTR(-ENOSPC);
+		}
+	}
+	/* Now count > 0. */
+	ino = *sv_sb_fic_inode(sb,--count);
+	*sb->sv_sb_fic_count = cpu_to_fs16(sb, count);
+	fs16_add(sb, sb->sv_sb_total_free_inodes, -1);
+	dirty_sb(sb);
+	
+	if (dir->i_mode & S_ISGID) {
+		inode->i_gid = dir->i_gid;
+		if (S_ISDIR(mode))
+			mode |= S_ISGID;
+	} else
+		inode->i_gid = current->fsgid;
+
+	inode->i_uid = current->fsuid;
+	inode->i_ino = fs16_to_cpu(sb, ino);
+	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+	inode->i_blocks = inode->i_blksize = 0;
+	inode->u.sysv_i.i_dir_start_lookup = 0;
+	insert_inode_hash(inode);
+	mark_inode_dirty(inode);
+
+	inode->i_mode = mode;		/* for sysv_write_inode() */
+	sysv_write_inode(inode, 0);	/* ensure inode not allocated again */
+	mark_inode_dirty(inode);	/* cleared by sysv_write_inode() */
+	/* That's it. */
+	unlock_super(sb);
+	return inode;
+}
+
+unsigned long sysv_count_free_inodes(struct super_block * sb)
+{
+	struct buffer_head * bh;
+	struct sysv_inode * raw_inode;
+	int ino, count, sb_count;
+
+	lock_super(sb);
+
+	sb_count = fs16_to_cpu(sb, *sb->sv_sb_total_free_inodes);
+
+	if (0)
+		goto trust_sb;
+
+	/* this causes a lot of disk traffic ... */
+	count = 0;
+	ino = SYSV_ROOT_INO+1;
+	raw_inode = sysv_raw_inode(sb, ino, &bh);
+	if (!raw_inode)
+		goto Eio;
+	while (ino <= sb->sv_ninodes) {
+		if (raw_inode->i_mode == 0 && raw_inode->i_nlink == 0)
+			count++;
+		if ((ino++ & sb->sv_inodes_per_block_1) == 0) {
+			brelse(bh);
+			raw_inode = sysv_raw_inode(sb, ino, &bh);
+			if (!raw_inode)
+				goto Eio;
+		} else
+			raw_inode++;
+	}
+	brelse(bh);
+	if (count != sb_count)
+		goto Einval;
+out:
+	unlock_super(sb);
+	return count;
+
+Einval:
+	printk("sysv_count_free_inodes: "
+		"free inode count was %d, correcting to %d\n",
+		sb_count, count);
+	if (!(sb->s_flags & MS_RDONLY)) {
+		*sb->sv_sb_total_free_inodes = cpu_to_fs16(sb, count);
+		dirty_sb(sb);
+	}
+	goto out;
+
+Eio:
+	printk("sysv_count_free_inodes: unable to read inode table\n");
+trust_sb:
+	count = sb_count;
+	goto out;
+}
diff --git a/fs/sysv/inode.c b/fs/sysv/inode.c
new file mode 100644
index 00000000000000..d1ee3e89567d69
--- /dev/null
+++ b/fs/sysv/inode.c
@@ -0,0 +1,271 @@
+/*
+ *  linux/fs/sysv/inode.c
+ *
+ *  minix/inode.c
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  xenix/inode.c
+ *  Copyright (C) 1992  Doug Evans
+ *
+ *  coh/inode.c
+ *  Copyright (C) 1993  Pascal Haible, Bruno Haible
+ *
+ *  sysv/inode.c
+ *  Copyright (C) 1993  Paul B. Monday
+ *
+ *  sysv/inode.c
+ *  Copyright (C) 1993  Bruno Haible
+ *  Copyright (C) 1997, 1998  Krzysztof G. Baranowski
+ *
+ *  This file contains code for allocating/freeing inodes and for read/writing
+ *  the superblock.
+ */
+
+#include <linux/fs.h>
+#include <linux/sysv_fs.h>
+#include <linux/locks.h>
+#include <linux/smp_lock.h>
+#include <linux/highuid.h>
+#include <asm/byteorder.h>
+
+/* This is only called on sync() and umount(), when s_dirt=1. */
+static void sysv_write_super(struct super_block *sb)
+{
+	if (!(sb->s_flags & MS_RDONLY)) {
+		/* If we are going to write out the super block,
+		   then attach current time stamp.
+		   But if the filesystem was marked clean, keep it clean. */
+		unsigned long time = CURRENT_TIME;
+		unsigned long old_time = fs32_to_cpu(sb, *sb->sv_sb_time);
+		if (sb->sv_type == FSTYPE_SYSV4)
+			if (*sb->sv_sb_state == cpu_to_fs32(sb, 0x7c269d38 - old_time))
+				*sb->sv_sb_state = cpu_to_fs32(sb, 0x7c269d38 - time);
+		*sb->sv_sb_time = cpu_to_fs32(sb, time);
+		mark_buffer_dirty(sb->sv_bh2);
+	}
+	sb->s_dirt = 0;
+}
+
+static void sysv_put_super(struct super_block *sb)
+{
+	if (!(sb->s_flags & MS_RDONLY)) {
+		/* XXX ext2 also updates the state here */
+		mark_buffer_dirty(sb->sv_bh1);
+		if (sb->sv_bh1 != sb->sv_bh2)
+			mark_buffer_dirty(sb->sv_bh2);
+	}
+
+	brelse(sb->sv_bh1);
+	if (sb->sv_bh1 != sb->sv_bh2)
+		brelse(sb->sv_bh2);
+}
+
+static int sysv_statfs(struct super_block *sb, struct statfs *buf)
+{
+	buf->f_type = sb->s_magic;
+	buf->f_bsize = sb->s_blocksize;
+	buf->f_blocks = sb->sv_ndatazones;
+	buf->f_bavail = buf->f_bfree = sysv_count_free_blocks(sb);
+	buf->f_files = sb->sv_ninodes;
+	buf->f_ffree = sysv_count_free_inodes(sb);
+	buf->f_namelen = SYSV_NAMELEN;
+	return 0;
+}
+
+/* 
+ * NXI <-> N0XI for PDP, XIN <-> XIN0 for le32, NIX <-> 0NIX for be32
+ */
+static inline void read3byte(struct super_block *sb,
+	unsigned char * from, unsigned char * to)
+{
+	if (sb->sv_bytesex == BYTESEX_PDP) {
+		to[0] = from[0];
+		to[1] = 0;
+		to[2] = from[1];
+		to[3] = from[2];
+	} else if (sb->sv_bytesex == BYTESEX_LE) {
+		to[0] = from[0];
+		to[1] = from[1];
+		to[2] = from[2];
+		to[3] = 0;
+	} else {
+		to[0] = 0;
+		to[1] = from[0];
+		to[2] = from[1];
+		to[3] = from[2];
+	}
+}
+
+static inline void write3byte(struct super_block *sb,
+	unsigned char * from, unsigned char * to)
+{
+	if (sb->sv_bytesex == BYTESEX_PDP) {
+		to[0] = from[0];
+		to[1] = from[2];
+		to[2] = from[3];
+	} else if (sb->sv_bytesex == BYTESEX_LE) {
+		to[0] = from[0];
+		to[1] = from[1];
+		to[2] = from[2];
+	} else {
+		to[0] = from[1];
+		to[1] = from[2];
+		to[2] = from[3];
+	}
+}
+
+static struct inode_operations sysv_symlink_inode_operations = {
+	readlink:	page_readlink,
+	follow_link:	page_follow_link,
+};
+
+void sysv_set_inode(struct inode *inode, dev_t rdev)
+{
+	if (S_ISREG(inode->i_mode)) {
+		inode->i_op = &sysv_file_inode_operations;
+		inode->i_fop = &sysv_file_operations;
+		inode->i_mapping->a_ops = &sysv_aops;
+	} else if (S_ISDIR(inode->i_mode)) {
+		inode->i_op = &sysv_dir_inode_operations;
+		inode->i_fop = &sysv_dir_operations;
+		inode->i_mapping->a_ops = &sysv_aops;
+	} else if (S_ISLNK(inode->i_mode)) {
+		if (inode->i_blocks) {
+			inode->i_op = &sysv_symlink_inode_operations;
+			inode->i_mapping->a_ops = &sysv_aops;
+		} else
+			inode->i_op = &sysv_fast_symlink_inode_operations;
+	} else
+		init_special_inode(inode, inode->i_mode, rdev);
+}
+
+static void sysv_read_inode(struct inode *inode)
+{
+	struct super_block * sb = inode->i_sb;
+	struct buffer_head * bh;
+	struct sysv_inode * raw_inode;
+	unsigned int block, ino;
+	dev_t rdev = 0;
+
+	ino = inode->i_ino;
+	if (!ino || ino > sb->sv_ninodes) {
+		printk("Bad inode number on dev %s"
+		       ": %d is out of range\n",
+		       kdevname(inode->i_dev), ino);
+		goto bad_inode;
+	}
+	raw_inode = sysv_raw_inode(sb, ino, &bh);
+	if (!raw_inode) {
+		printk("Major problem: unable to read inode from dev %s\n",
+		       bdevname(inode->i_dev));
+		goto bad_inode;
+	}
+	/* SystemV FS: kludge permissions if ino==SYSV_ROOT_INO ?? */
+	inode->i_mode = fs16_to_cpu(sb, raw_inode->i_mode);
+	inode->i_uid = (uid_t)fs16_to_cpu(sb, raw_inode->i_uid);
+	inode->i_gid = (gid_t)fs16_to_cpu(sb, raw_inode->i_gid);
+	inode->i_nlink = fs16_to_cpu(sb, raw_inode->i_nlink);
+	inode->i_size = fs32_to_cpu(sb, raw_inode->i_size);
+	inode->i_atime = fs32_to_cpu(sb, raw_inode->i_atime);
+	inode->i_mtime = fs32_to_cpu(sb, raw_inode->i_mtime);
+	inode->i_ctime = fs32_to_cpu(sb, raw_inode->i_ctime);
+	inode->i_blocks = inode->i_blksize = 0;
+	for (block = 0; block < 10+1+1+1; block++)
+		read3byte(sb, &raw_inode->i_a.i_addb[3*block],
+			(unsigned char*)&inode->u.sysv_i.i_data[block]);
+	brelse(bh);
+	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
+		rdev = (u16)fs32_to_cpu(sb, inode->u.sysv_i.i_data[0]);
+	inode->u.sysv_i.i_dir_start_lookup = 0;
+	sysv_set_inode(inode, rdev);
+	return;
+
+bad_inode:
+	make_bad_inode(inode);
+	return;
+}
+
+static struct buffer_head * sysv_update_inode(struct inode * inode)
+{
+	struct super_block * sb = inode->i_sb;
+	struct buffer_head * bh;
+	struct sysv_inode * raw_inode;
+	unsigned int ino, block;
+
+	ino = inode->i_ino;
+	if (!ino || ino > sb->sv_ninodes) {
+		printk("Bad inode number on dev %s: %d is out of range\n",
+		       bdevname(inode->i_dev), ino);
+		return 0;
+	}
+	raw_inode = sysv_raw_inode(sb, ino, &bh);
+	if (!raw_inode) {
+		printk("unable to read i-node block\n");
+		return 0;
+	}
+
+	raw_inode->i_mode = cpu_to_fs16(sb, inode->i_mode);
+	raw_inode->i_uid = cpu_to_fs16(sb, fs_high2lowuid(inode->i_uid));
+	raw_inode->i_gid = cpu_to_fs16(sb, fs_high2lowgid(inode->i_gid));
+	raw_inode->i_nlink = cpu_to_fs16(sb, inode->i_nlink);
+	raw_inode->i_size = cpu_to_fs32(sb, inode->i_size);
+	raw_inode->i_atime = cpu_to_fs32(sb, inode->i_atime);
+	raw_inode->i_mtime = cpu_to_fs32(sb, inode->i_mtime);
+	raw_inode->i_ctime = cpu_to_fs32(sb, inode->i_ctime);
+	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
+		inode->u.sysv_i.i_data[0] = 
+			cpu_to_fs32(sb, kdev_t_to_nr(inode->i_rdev));
+	for (block = 0; block < 10+1+1+1; block++)
+		write3byte(sb, (unsigned char*)&inode->u.sysv_i.i_data[block],
+			&raw_inode->i_a.i_addb[3*block]);
+	mark_buffer_dirty(bh);
+	return bh;
+}
+
+void sysv_write_inode(struct inode * inode, int wait)
+{
+	struct buffer_head *bh;
+	lock_kernel();
+	bh = sysv_update_inode(inode);
+	brelse(bh);
+	unlock_kernel();
+}
+
+int sysv_sync_inode(struct inode * inode)
+{
+        int err = 0;
+        struct buffer_head *bh;
+
+        bh = sysv_update_inode(inode);
+        if (bh && buffer_dirty(bh)) {
+                ll_rw_block(WRITE, 1, &bh);
+                wait_on_buffer(bh);
+                if (buffer_req(bh) && !buffer_uptodate(bh)) {
+                        printk ("IO error syncing sysv inode [%s:%08lx]\n",
+                                bdevname(inode->i_dev), inode->i_ino);
+                        err = -1;
+                }
+        }
+        else if (!bh)
+                err = -1;
+        brelse (bh);
+        return err;
+}
+
+static void sysv_delete_inode(struct inode *inode)
+{
+	lock_kernel();
+	inode->i_size = 0;
+	sysv_truncate(inode);
+	sysv_free_inode(inode);
+	unlock_kernel();
+}
+
+struct super_operations sysv_sops = {
+	read_inode:	sysv_read_inode,
+	write_inode:	sysv_write_inode,
+	delete_inode:	sysv_delete_inode,
+	put_super:	sysv_put_super,
+	write_super:	sysv_write_super,
+	statfs:		sysv_statfs,
+};
diff --git a/fs/sysv/itree.c b/fs/sysv/itree.c
new file mode 100644
index 00000000000000..7a5294ce8b02ad
--- /dev/null
+++ b/fs/sysv/itree.c
@@ -0,0 +1,439 @@
+/*
+ *  linux/fs/sysv/itree.c
+ *
+ *  Handling of indirect blocks' trees.
+ *  AV, Sep--Dec 2000
+ */
+
+#include <linux/fs.h>
+#include <linux/sysv_fs.h>
+#include <linux/locks.h>
+#include <linux/smp_lock.h>
+
+enum {DIRECT = 10, DEPTH = 4};	/* Have triple indirect */
+
+static inline void dirty_indirect(struct buffer_head *bh, struct inode *inode)
+{
+	mark_buffer_dirty_inode(bh, inode);
+	if (IS_SYNC(inode)) {
+		ll_rw_block (WRITE, 1, &bh);
+		wait_on_buffer (bh);
+	}
+}
+
+static int block_to_path(struct inode *inode, long block, int offsets[DEPTH])
+{
+	struct super_block *sb = inode->i_sb;
+	int ptrs_bits = sb->sv_ind_per_block_bits;
+	unsigned long	indirect_blocks = sb->sv_ind_per_block,
+			double_blocks = sb->sv_ind_per_block_2;
+	int n = 0;
+
+	if (block < 0) {
+		printk("sysv_block_map: block < 0\n");
+	} else if (block < DIRECT) {
+		offsets[n++] = block;
+	} else if ( (block -= DIRECT) < indirect_blocks) {
+		offsets[n++] = DIRECT;
+		offsets[n++] = block;
+	} else if ((block -= indirect_blocks) < double_blocks) {
+		offsets[n++] = DIRECT+1;
+		offsets[n++] = block >> ptrs_bits;
+		offsets[n++] = block & (indirect_blocks - 1);
+	} else if (((block -= double_blocks) >> (ptrs_bits * 2)) < indirect_blocks) {
+		offsets[n++] = DIRECT+2;
+		offsets[n++] = block >> (ptrs_bits * 2);
+		offsets[n++] = (block >> ptrs_bits) & (indirect_blocks - 1);
+		offsets[n++] = block & (indirect_blocks - 1);
+	} else {
+		/* nothing */;
+	}
+	return n;
+}
+
+static inline int block_to_cpu(struct super_block *sb, u32 nr)
+{
+	return sb->sv_block_base + fs32_to_cpu(sb, nr);
+}
+
+typedef struct {
+	u32     *p;
+	u32     key;
+	struct buffer_head *bh;
+} Indirect;
+
+static inline void add_chain(Indirect *p, struct buffer_head *bh, u32 *v)
+{
+	p->key = *(p->p = v);
+	p->bh = bh;
+}
+
+static inline int verify_chain(Indirect *from, Indirect *to)
+{
+	while (from <= to && from->key == *from->p)
+		from++;
+	return (from > to);
+}
+
+static inline u32 *block_end(struct buffer_head *bh)
+{
+	return (u32*)((char*)bh->b_data + bh->b_size);
+}
+
+static Indirect *get_branch(struct inode *inode,
+			    int depth,
+			    int offsets[],
+			    Indirect chain[],
+			    int *err)
+{
+	struct super_block *sb = inode->i_sb;
+	Indirect *p = chain;
+	struct buffer_head *bh;
+
+	*err = 0;
+	add_chain (chain, NULL, inode->u.sysv_i.i_data + *offsets);
+	if (!p->key)
+		goto no_block;
+	while (--depth) {
+		int block = block_to_cpu(sb, p->key);
+		bh = sb_bread(sb, block);
+		if (!bh)
+			goto failure;
+		if (!verify_chain(chain, p))
+			goto changed;
+		add_chain(++p, bh, (u32*)bh->b_data + *++offsets);
+		if (!p->key)
+		goto no_block;
+	}
+	return NULL;
+
+changed:
+	*err = -EAGAIN;
+	goto no_block;
+failure:
+	*err = -EIO;
+no_block:
+	return p;
+}
+
+static int alloc_branch(struct inode *inode,
+			int num,
+			int *offsets,
+			Indirect *branch)
+{
+	int blocksize = inode->i_sb->s_blocksize;
+	int n = 0;
+	int i;
+
+	branch[0].key = sysv_new_block(inode->i_sb);
+	if (branch[0].key) for (n = 1; n < num; n++) {
+		struct buffer_head *bh;
+		int parent;
+		/* Allocate the next block */
+		branch[n].key = sysv_new_block(inode->i_sb);
+		if (!branch[n].key)
+			break;
+		/*
+		 * Get buffer_head for parent block, zero it out and set 
+		 * the pointer to new one, then send parent to disk.
+		 */
+		parent = block_to_cpu(inode->i_sb, branch[n-1].key);
+		bh = sb_getblk(inode->i_sb, parent);
+		lock_buffer(bh);
+		memset(bh->b_data, 0, blocksize);
+		branch[n].bh = bh;
+		branch[n].p = (u32*) bh->b_data + offsets[n];
+		*branch[n].p = branch[n].key;
+		mark_buffer_uptodate(bh, 1);
+		unlock_buffer(bh);
+		dirty_indirect(bh, inode);
+	}
+	if (n == num)
+		return 0;
+
+	/* Allocation failed, free what we already allocated */
+	for (i = 1; i < n; i++)
+		bforget(branch[i].bh);
+	for (i = 0; i < n; i++)
+		sysv_free_block(inode->i_sb, branch[i].key);
+	return -ENOSPC;
+}
+
+static inline int splice_branch(struct inode *inode,
+				Indirect chain[],
+				Indirect *where,
+				int num)
+{
+	int i;
+	/* Verify that place we are splicing to is still there and vacant */
+
+	if (!verify_chain(chain, where-1) || *where->p)
+		goto changed;
+
+	*where->p = where->key;
+	inode->i_ctime = CURRENT_TIME;
+
+	/* had we spliced it onto indirect block? */
+	if (where->bh)
+		dirty_indirect(where->bh, inode);
+
+	if (IS_SYNC(inode))
+		sysv_sync_inode(inode);
+	else
+		mark_inode_dirty(inode);
+	return 0;
+
+changed:
+	for (i = 1; i < num; i++)
+		bforget(where[i].bh);
+	for (i = 0; i < num; i++)
+		sysv_free_block(inode->i_sb, where[i].key);
+	return -EAGAIN;
+}
+
+static int get_block(struct inode *inode, long iblock, struct buffer_head *bh_result, int create)
+{
+	int err = -EIO;
+	int offsets[DEPTH];
+	Indirect chain[DEPTH];
+	struct super_block *sb = inode->i_sb;
+	Indirect *partial;
+	int left;
+	int depth = block_to_path(inode, iblock, offsets);
+
+	if (depth == 0)
+		goto out;
+
+	lock_kernel();
+reread:
+	partial = get_branch(inode, depth, offsets, chain, &err);
+
+	/* Simplest case - block found, no allocation needed */
+	if (!partial) {
+got_it:
+		bh_result->b_dev = sb->s_dev;
+		bh_result->b_blocknr = block_to_cpu(sb, chain[depth-1].key);
+		bh_result->b_state |= (1UL << BH_Mapped);
+		/* Clean up and exit */
+		partial = chain+depth-1; /* the whole chain */
+		goto cleanup;
+	}
+
+	/* Next simple case - plain lookup or failed read of indirect block */
+	if (!create || err == -EIO) {
+cleanup:
+		while (partial > chain) {
+			brelse(partial->bh);
+			partial--;
+		}
+		unlock_kernel();
+out:
+		return err;
+	}
+
+	/*
+	 * Indirect block might be removed by truncate while we were
+	 * reading it. Handling of that case (forget what we've got and
+	 * reread) is taken out of the main path.
+	 */
+	if (err == -EAGAIN)
+		goto changed;
+
+	left = (chain + depth) - partial;
+	err = alloc_branch(inode, left, offsets+(partial-chain), partial);
+	if (err)
+		goto cleanup;
+
+	if (splice_branch(inode, chain, partial, left) < 0)
+		goto changed;
+
+	bh_result->b_state |= (1UL << BH_New);
+	goto got_it;
+
+changed:
+	while (partial > chain) {
+		brelse(partial->bh);
+		partial--;
+	}
+	goto reread;
+}
+
+static inline int all_zeroes(u32 *p, u32 *q)
+{
+	while (p < q)
+		if (*p++)
+			return 0;
+	return 1;
+}
+
+static Indirect *find_shared(struct inode *inode,
+				int depth,
+				int offsets[],
+				Indirect chain[],
+				u32 *top)
+{
+	Indirect *partial, *p;
+	int k, err;
+
+	*top = 0;
+	for (k = depth; k > 1 && !offsets[k-1]; k--)
+		;
+	partial = get_branch(inode, k, offsets, chain, &err);
+	if (!partial)
+		partial = chain + k-1;
+	/*
+	 * If the branch acquired continuation since we've looked at it -
+	 * fine, it should all survive and (new) top doesn't belong to us.
+	 */
+	if (!partial->key && *partial->p)
+		goto no_top;
+	for (p=partial; p>chain && all_zeroes((u32*)p->bh->b_data,p->p); p--)
+		;
+	/*
+	 * OK, we've found the last block that must survive. The rest of our
+	 * branch should be detached before unlocking. However, if that rest
+	 * of branch is all ours and does not grow immediately from the inode
+	 * it's easier to cheat and just decrement partial->p.
+	 */
+	if (p == chain + k - 1 && p > chain) {
+		p->p--;
+	} else {
+		*top = *p->p;
+		*p->p = 0;
+	}
+
+	while(partial > p) {
+		brelse(partial->bh);
+		partial--;
+	}
+no_top:
+	return partial;
+}
+
+static inline void free_data(struct inode *inode, u32 *p, u32 *q)
+{
+	for ( ; p < q ; p++) {
+		u32 nr = *p;
+		if (nr) {
+			*p = 0;
+			sysv_free_block(inode->i_sb, nr);
+			mark_inode_dirty(inode);
+		}
+	}
+}
+
+static void free_branches(struct inode *inode, u32 *p, u32 *q, int depth)
+{
+	struct buffer_head * bh;
+	struct super_block *sb = inode->i_sb;
+
+	if (depth--) {
+		for ( ; p < q ; p++) {
+			int block;
+			u32 nr = *p;
+			if (!nr)
+				continue;
+			*p = 0;
+			block = block_to_cpu(sb, nr);
+			bh = sb_bread(sb, block);
+			if (!bh)
+				continue;
+			free_branches(inode, (u32*)bh->b_data,
+					block_end(bh), depth);
+			bforget(bh);
+			sysv_free_block(sb, nr);
+			mark_inode_dirty(inode);
+		}
+	} else
+		free_data(inode, p, q);
+}
+
+void sysv_truncate (struct inode * inode)
+{
+	u32 *i_data = inode->u.sysv_i.i_data;
+	int offsets[DEPTH];
+	Indirect chain[DEPTH];
+	Indirect *partial;
+	int nr = 0;
+	int n;
+	long iblock;
+	unsigned blocksize;
+
+	if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
+	    S_ISLNK(inode->i_mode)))
+		return;
+
+	blocksize = inode->i_sb->s_blocksize;
+	iblock = (inode->i_size + blocksize-1)
+					>> inode->i_sb->s_blocksize_bits;
+
+	block_truncate_page(inode->i_mapping, inode->i_size, get_block);
+
+	n = block_to_path(inode, iblock, offsets);
+	if (n == 0)
+		return;
+
+	if (n == 1) {
+		free_data(inode, i_data+offsets[0], i_data + DIRECT);
+		goto do_indirects;
+	}
+
+	partial = find_shared(inode, n, offsets, chain, &nr);
+	/* Kill the top of shared branch (already detached) */
+	if (nr) {
+		if (partial == chain)
+			mark_inode_dirty(inode);
+		else
+			dirty_indirect(partial->bh, inode);
+		free_branches(inode, &nr, &nr+1, (chain+n-1) - partial);
+	}
+	/* Clear the ends of indirect blocks on the shared branch */
+	while (partial > chain) {
+		free_branches(inode, partial->p + 1, block_end(partial->bh),
+				(chain+n-1) - partial);
+		dirty_indirect(partial->bh, inode);
+		brelse (partial->bh);
+		partial--;
+	}
+do_indirects:
+	/* Kill the remaining (whole) subtrees (== subtrees deeper than...) */
+	while (n < DEPTH) {
+		nr = i_data[DIRECT + n - 1];
+		if (nr) {
+			i_data[DIRECT + n - 1] = 0;
+			mark_inode_dirty(inode);
+			free_branches(inode, &nr, &nr+1, n);
+		}
+		n++;
+	}
+	inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+	if (IS_SYNC(inode))
+		sysv_sync_inode (inode);
+	else
+		mark_inode_dirty(inode);
+}
+
+static int sysv_writepage(struct page *page)
+{
+	return block_write_full_page(page,get_block);
+}
+static int sysv_readpage(struct file *file, struct page *page)
+{
+	return block_read_full_page(page,get_block);
+}
+static int sysv_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)
+{
+	return block_prepare_write(page,from,to,get_block);
+}
+static int sysv_bmap(struct address_space *mapping, long block)
+{
+	return generic_block_bmap(mapping,block,get_block);
+}
+struct address_space_operations sysv_aops = {
+	readpage: sysv_readpage,
+	writepage: sysv_writepage,
+	sync_page: block_sync_page,
+	prepare_write: sysv_prepare_write,
+	commit_write: generic_commit_write,
+	bmap: sysv_bmap
+};
diff --git a/fs/sysv/namei.c b/fs/sysv/namei.c
new file mode 100644
index 00000000000000..33f5e3b5613fee
--- /dev/null
+++ b/fs/sysv/namei.c
@@ -0,0 +1,323 @@
+/*
+ *  linux/fs/sysv/namei.c
+ *
+ *  minix/namei.c
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  coh/namei.c
+ *  Copyright (C) 1993  Pascal Haible, Bruno Haible
+ *
+ *  sysv/namei.c
+ *  Copyright (C) 1993  Bruno Haible
+ *  Copyright (C) 1997, 1998  Krzysztof G. Baranowski
+ */
+
+#include <linux/fs.h>
+#include <linux/sysv_fs.h>
+#include <linux/pagemap.h>
+
+static inline void inc_count(struct inode *inode)
+{
+	inode->i_nlink++;
+	mark_inode_dirty(inode);
+}
+
+static inline void dec_count(struct inode *inode)
+{
+	inode->i_nlink--;
+	mark_inode_dirty(inode);
+}
+
+static int add_nondir(struct dentry *dentry, struct inode *inode)
+{
+	int err = sysv_add_link(dentry, inode);
+	if (!err) {
+		d_instantiate(dentry, inode);
+		return 0;
+	}
+	dec_count(inode);
+	iput(inode);
+	return err;
+}
+
+static int sysv_hash(struct dentry *dentry, struct qstr *qstr)
+{
+	unsigned long hash;
+	int i;
+	const unsigned char *name;
+
+	i = SYSV_NAMELEN;
+	if (i >= qstr->len)
+		return 0;
+	/* Truncate the name in place, avoids having to define a compare
+	   function. */
+	qstr->len = i;
+	name = qstr->name;
+	hash = init_name_hash();
+	while (i--)
+		hash = partial_name_hash(*name++, hash);
+	qstr->hash = end_name_hash(hash);
+	return 0;
+}
+
+struct dentry_operations sysv_dentry_operations = {
+	d_hash:		sysv_hash,
+};
+
+static struct dentry *sysv_lookup(struct inode * dir, struct dentry * dentry)
+{
+	struct inode * inode = NULL;
+	ino_t ino;
+
+	dentry->d_op = dir->i_sb->s_root->d_op;
+	if (dentry->d_name.len > SYSV_NAMELEN)
+		return ERR_PTR(-ENAMETOOLONG);
+	ino = sysv_inode_by_name(dentry);
+
+	if (ino) {
+		inode = iget(dir->i_sb, ino);
+		if (!inode) 
+			return ERR_PTR(-EACCES);
+	}
+	d_add(dentry, inode);
+	return NULL;
+}
+
+static int sysv_mknod(struct inode * dir, struct dentry * dentry, int mode, int rdev)
+{
+	struct inode * inode = sysv_new_inode(dir, mode);
+	int err = PTR_ERR(inode);
+
+	if (!IS_ERR(inode)) {
+		sysv_set_inode(inode, rdev);
+		mark_inode_dirty(inode);
+		err = add_nondir(dentry, inode);
+	}
+	return err;
+}
+
+static int sysv_create(struct inode * dir, struct dentry * dentry, int mode)
+{
+	return sysv_mknod(dir, dentry, mode, 0);
+}
+
+static int sysv_symlink(struct inode * dir, struct dentry * dentry, 
+	const char * symname)
+{
+	int err = -ENAMETOOLONG;
+	int l = strlen(symname)+1;
+	struct inode * inode;
+
+	if (l > dir->i_sb->s_blocksize)
+		goto out;
+
+	inode = sysv_new_inode(dir, S_IFLNK|0777);
+	err = PTR_ERR(inode);
+	if (IS_ERR(inode))
+		goto out;
+	
+	sysv_set_inode(inode, 0);
+	err = block_symlink(inode, symname, l);
+	if (err)
+		goto out_fail;
+
+	mark_inode_dirty(inode);
+	err = add_nondir(dentry, inode);
+out:
+	return err;
+
+out_fail:
+	dec_count(inode);
+	iput(inode);
+	goto out;
+}
+
+static int sysv_link(struct dentry * old_dentry, struct inode * dir, 
+	struct dentry * dentry)
+{
+	struct inode *inode = old_dentry->d_inode;
+
+	if (S_ISDIR(inode->i_mode))
+		return -EPERM;
+
+	if (inode->i_nlink >= inode->i_sb->sv_link_max)
+		return -EMLINK;
+
+	inode->i_ctime = CURRENT_TIME;
+	inc_count(inode);
+	atomic_inc(&inode->i_count);
+
+	return add_nondir(dentry, inode);
+}
+
+static int sysv_mkdir(struct inode * dir, struct dentry *dentry, int mode)
+{
+	struct inode * inode;
+	int err = -EMLINK;
+
+	if (dir->i_nlink >= dir->i_sb->sv_link_max) 
+		goto out;
+	inc_count(dir);
+
+	inode = sysv_new_inode(dir, S_IFDIR|mode);
+	err = PTR_ERR(inode);
+	if (IS_ERR(inode))
+		goto out_dir;
+
+	sysv_set_inode(inode, 0);
+
+	inc_count(inode);
+
+	err = sysv_make_empty(inode, dir);
+	if (err)
+		goto out_fail;
+
+	err = sysv_add_link(dentry, inode);
+	if (err)
+		goto out_fail;
+
+        d_instantiate(dentry, inode);
+out:
+	return err;
+
+out_fail:
+	dec_count(inode);
+	dec_count(inode);
+	iput(inode);
+out_dir:
+	dec_count(dir);
+	goto out;
+}
+
+static int sysv_unlink(struct inode * dir, struct dentry * dentry)
+{
+	struct inode * inode = dentry->d_inode;
+	struct page * page;
+	struct sysv_dir_entry * de;
+	int err = -ENOENT;
+
+	de = sysv_find_entry(dentry, &page);
+	if (!de)
+		goto out;
+
+	err = sysv_delete_entry (de, page);
+	if (err)
+		goto out;
+
+	inode->i_ctime = dir->i_ctime;
+	dec_count(inode);
+out:
+	return err;
+}
+
+static int sysv_rmdir(struct inode * dir, struct dentry * dentry)
+{
+	struct inode *inode = dentry->d_inode;
+	int err = -ENOTEMPTY;
+
+	if (sysv_empty_dir(inode)) {
+		err = sysv_unlink(dir, dentry);
+		if (!err) {
+			inode->i_size = 0;
+			dec_count(inode);
+			dec_count(dir);
+		}
+	}
+	return err;
+}
+
+/*
+ * Anybody can rename anything with this: the permission checks are left to the
+ * higher-level routines.
+ */
+static int sysv_rename(struct inode * old_dir, struct dentry * old_dentry,
+		  struct inode * new_dir, struct dentry * new_dentry)
+{
+	struct inode * old_inode = old_dentry->d_inode;
+	struct inode * new_inode = new_dentry->d_inode;
+	struct page * dir_page = NULL;
+	struct sysv_dir_entry * dir_de = NULL;
+	struct page * old_page;
+	struct sysv_dir_entry * old_de;
+	int err = -ENOENT;
+
+	old_de = sysv_find_entry(old_dentry, &old_page);
+	if (!old_de)
+		goto out;
+
+	if (S_ISDIR(old_inode->i_mode)) {
+		err = -EIO;
+		dir_de = sysv_dotdot(old_inode, &dir_page);
+		if (!dir_de)
+			goto out_old;
+	}
+
+	if (new_inode) {
+		struct page * new_page;
+		struct sysv_dir_entry * new_de;
+
+		err = -ENOTEMPTY;
+		if (dir_de && !sysv_empty_dir(new_inode))
+			goto out_dir;
+
+		err = -ENOENT;
+		new_de = sysv_find_entry(new_dentry, &new_page);
+		if (!new_de)
+			goto out_dir;
+		inc_count(old_inode);
+		sysv_set_link(new_de, new_page, old_inode);
+		new_inode->i_ctime = CURRENT_TIME;
+		if (dir_de)
+			new_inode->i_nlink--;
+		dec_count(new_inode);
+	} else {
+		if (dir_de) {
+			err = -EMLINK;
+			if (new_dir->i_nlink >= new_dir->i_sb->sv_link_max)
+				goto out_dir;
+		}
+		inc_count(old_inode);
+		err = sysv_add_link(new_dentry, old_inode);
+		if (err) {
+			dec_count(old_inode);
+			goto out_dir;
+		}
+		if (dir_de)
+			inc_count(new_dir);
+	}
+
+	sysv_delete_entry(old_de, old_page);
+	dec_count(old_inode);
+
+	if (dir_de) {
+		sysv_set_link(dir_de, dir_page, new_dir);
+		dec_count(old_dir);
+	}
+	return 0;
+
+out_dir:
+	if (dir_de) {
+		kunmap(dir_page);
+		page_cache_release(dir_page);
+	}
+out_old:
+	kunmap(old_page);
+	page_cache_release(old_page);
+out:
+	return err;
+}
+
+/*
+ * directories can handle most operations...
+ */
+struct inode_operations sysv_dir_inode_operations = {
+	create:		sysv_create,
+	lookup:		sysv_lookup,
+	link:		sysv_link,
+	unlink:		sysv_unlink,
+	symlink:	sysv_symlink,
+	mkdir:		sysv_mkdir,
+	rmdir:		sysv_rmdir,
+	mknod:		sysv_mknod,
+	rename:		sysv_rename,
+};
diff --git a/fs/sysv/super.c b/fs/sysv/super.c
new file mode 100644
index 00000000000000..2f79a13b4b059d
--- /dev/null
+++ b/fs/sysv/super.c
@@ -0,0 +1,508 @@
+/*
+ *  linux/fs/sysv/inode.c
+ *
+ *  minix/inode.c
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  xenix/inode.c
+ *  Copyright (C) 1992  Doug Evans
+ *
+ *  coh/inode.c
+ *  Copyright (C) 1993  Pascal Haible, Bruno Haible
+ *
+ *  sysv/inode.c
+ *  Copyright (C) 1993  Paul B. Monday
+ *
+ *  sysv/inode.c
+ *  Copyright (C) 1993  Bruno Haible
+ *  Copyright (C) 1997, 1998  Krzysztof G. Baranowski
+ *
+ *  This file contains code for read/parsing the superblock.
+ */
+
+#include <linux/module.h>
+
+#include <linux/fs.h>
+#include <linux/sysv_fs.h>
+#include <linux/init.h>
+
+/*
+ * The following functions try to recognize specific filesystems.
+ *
+ * We recognize:
+ * - Xenix FS by its magic number.
+ * - SystemV FS by its magic number.
+ * - Coherent FS by its funny fname/fpack field.
+ * - SCO AFS by s_nfree == 0xffff
+ * - V7 FS has no distinguishing features.
+ *
+ * We discriminate among SystemV4 and SystemV2 FS by the assumption that
+ * the time stamp is not < 01-01-1980.
+ */
+
+enum {
+	JAN_1_1980 = (10*365 + 2) * 24 * 60 * 60
+};
+
+static void detected_xenix(struct super_block *sb)
+{
+	struct buffer_head *bh1 = sb->sv_bh1;
+	struct buffer_head *bh2 = sb->sv_bh2;
+	struct xenix_super_block * sbd1;
+	struct xenix_super_block * sbd2;
+
+	if (bh1 != bh2)
+		sbd1 = sbd2 = (struct xenix_super_block *) bh1->b_data;
+	else {
+		/* block size = 512, so bh1 != bh2 */
+		sbd1 = (struct xenix_super_block *) bh1->b_data;
+		sbd2 = (struct xenix_super_block *) (bh2->b_data - 512);
+	}
+
+	sb->sv_link_max = XENIX_LINK_MAX;
+	sb->sv_fic_size = XENIX_NICINOD;
+	sb->sv_flc_size = XENIX_NICFREE;
+	sb->sv_sbd1 = (char *) sbd1;
+	sb->sv_sbd2 = (char *) sbd2;
+	sb->sv_sb_fic_count = &sbd1->s_ninode;
+	sb->sv_sb_fic_inodes = &sbd1->s_inode[0];
+	sb->sv_sb_total_free_inodes = &sbd2->s_tinode;
+	sb->sv_bcache_count = &sbd1->s_nfree;
+	sb->sv_bcache = &sbd1->s_free[0];
+	sb->sv_free_blocks = &sbd2->s_tfree;
+	sb->sv_sb_time = &sbd2->s_time;
+	sb->sv_firstdatazone = fs16_to_cpu(sb, sbd1->s_isize);
+	sb->sv_nzones = fs32_to_cpu(sb, sbd1->s_fsize);
+}
+
+static void detected_sysv4(struct super_block *sb)
+{
+	struct sysv4_super_block * sbd;
+	struct buffer_head *bh1 = sb->sv_bh1;
+	struct buffer_head *bh2 = sb->sv_bh2;
+
+	if (bh1 == bh2)
+		sbd = (struct sysv4_super_block *) (bh1->b_data + BLOCK_SIZE/2);
+	else
+		sbd = (struct sysv4_super_block *) bh2->b_data;
+
+	sb->sv_link_max = SYSV_LINK_MAX;
+	sb->sv_fic_size = SYSV_NICINOD;
+	sb->sv_flc_size = SYSV_NICFREE;
+	sb->sv_sbd1 = (char *) sbd;
+	sb->sv_sbd2 = (char *) sbd;
+	sb->sv_sb_fic_count = &sbd->s_ninode;
+	sb->sv_sb_fic_inodes = &sbd->s_inode[0];
+	sb->sv_sb_total_free_inodes = &sbd->s_tinode;
+	sb->sv_bcache_count = &sbd->s_nfree;
+	sb->sv_bcache = &sbd->s_free[0];
+	sb->sv_free_blocks = &sbd->s_tfree;
+	sb->sv_sb_time = &sbd->s_time;
+	sb->sv_sb_state = &sbd->s_state;
+	sb->sv_firstdatazone = fs16_to_cpu(sb, sbd->s_isize);
+	sb->sv_nzones = fs32_to_cpu(sb, sbd->s_fsize);
+}
+
+static void detected_sysv2(struct super_block *sb)
+{
+	struct sysv2_super_block * sbd;
+	struct buffer_head *bh1 = sb->sv_bh1;
+	struct buffer_head *bh2 = sb->sv_bh2;
+
+	if (bh1 == bh2)
+		sbd = (struct sysv2_super_block *) (bh1->b_data + BLOCK_SIZE/2);
+	else
+		sbd = (struct sysv2_super_block *) bh2->b_data;
+
+	sb->sv_link_max = SYSV_LINK_MAX;
+	sb->sv_fic_size = SYSV_NICINOD;
+	sb->sv_flc_size = SYSV_NICFREE;
+	sb->sv_sbd1 = (char *) sbd;
+	sb->sv_sbd2 = (char *) sbd;
+	sb->sv_sb_fic_count = &sbd->s_ninode;
+	sb->sv_sb_fic_inodes = &sbd->s_inode[0];
+	sb->sv_sb_total_free_inodes = &sbd->s_tinode;
+	sb->sv_bcache_count = &sbd->s_nfree;
+	sb->sv_bcache = &sbd->s_free[0];
+	sb->sv_free_blocks = &sbd->s_tfree;
+	sb->sv_sb_time = &sbd->s_time;
+	sb->sv_sb_state = &sbd->s_state;
+	sb->sv_firstdatazone = fs16_to_cpu(sb, sbd->s_isize);
+	sb->sv_nzones = fs32_to_cpu(sb, sbd->s_fsize);
+}
+
+static void detected_coherent(struct super_block *sb)
+{
+	struct coh_super_block * sbd;
+	struct buffer_head *bh1 = sb->sv_bh1;
+
+	sbd = (struct coh_super_block *) bh1->b_data;
+
+	sb->sv_link_max = COH_LINK_MAX;
+	sb->sv_fic_size = COH_NICINOD;
+	sb->sv_flc_size = COH_NICFREE;
+	sb->sv_sbd1 = (char *) sbd;
+	sb->sv_sbd2 = (char *) sbd;
+	sb->sv_sb_fic_count = &sbd->s_ninode;
+	sb->sv_sb_fic_inodes = &sbd->s_inode[0];
+	sb->sv_sb_total_free_inodes = &sbd->s_tinode;
+	sb->sv_bcache_count = &sbd->s_nfree;
+	sb->sv_bcache = &sbd->s_free[0];
+	sb->sv_free_blocks = &sbd->s_tfree;
+	sb->sv_sb_time = &sbd->s_time;
+	sb->sv_firstdatazone = fs16_to_cpu(sb, sbd->s_isize);
+	sb->sv_nzones = fs32_to_cpu(sb, sbd->s_fsize);
+}
+
+static void detected_v7(struct super_block *sb)
+{
+	struct buffer_head *bh2 = sb->sv_bh2;
+	struct v7_super_block *sbd = (struct v7_super_block *)bh2->b_data;
+
+	sb->sv_link_max = V7_LINK_MAX;
+	sb->sv_fic_size = V7_NICINOD;
+	sb->sv_flc_size = V7_NICFREE;
+	sb->sv_sbd1 = (char *)sbd;
+	sb->sv_sbd2 = (char *)sbd;
+	sb->sv_sb_fic_count = &sbd->s_ninode;
+	sb->sv_sb_fic_inodes = &sbd->s_inode[0];
+	sb->sv_sb_total_free_inodes = &sbd->s_tinode;
+	sb->sv_bcache_count = &sbd->s_nfree;
+	sb->sv_bcache = &sbd->s_free[0];
+	sb->sv_free_blocks = &sbd->s_tfree;
+	sb->sv_sb_time = &sbd->s_time;
+	sb->sv_firstdatazone = fs16_to_cpu(sb, sbd->s_isize);
+	sb->sv_nzones = fs32_to_cpu(sb, sbd->s_fsize);
+}
+
+static int detect_xenix (struct super_block *sb, struct buffer_head *bh)
+{
+	struct xenix_super_block * sbd = (struct xenix_super_block *)bh->b_data;
+	if (sbd->s_magic == cpu_to_le32(0x2b5544))
+		sb->sv_bytesex = BYTESEX_LE;
+	else if (sbd->s_magic == cpu_to_be32(0x2b5544))
+		sb->sv_bytesex = BYTESEX_BE;
+	else
+		return 0;
+	if (sbd->s_type > 2 || sbd->s_type < 1)
+		return 0;
+	sb->sv_type = FSTYPE_XENIX;
+	return sbd->s_type;
+}
+
+static int detect_sysv (struct super_block *sb, struct buffer_head *bh)
+{
+	/* All relevant fields are at the same offsets in R2 and R4 */
+	struct sysv4_super_block * sbd;
+
+	sbd = (struct sysv4_super_block *) (bh->b_data + BLOCK_SIZE/2);
+	if (sbd->s_magic == cpu_to_le32(0xfd187e20))
+		sb->sv_bytesex = BYTESEX_LE;
+	else if (sbd->s_magic == cpu_to_be32(0xfd187e20))
+		sb->sv_bytesex = BYTESEX_BE;
+	else
+		return 0;
+ 
+ 	if (fs16_to_cpu(sb, sbd->s_nfree) == 0xffff) {
+ 		sb->sv_type = FSTYPE_AFS;
+ 		if (!(sb->s_flags & MS_RDONLY)) {
+ 			printk("SysV FS: SCO EAFS on %s detected, " 
+ 				"forcing read-only mode.\n", 
+ 				bdevname(sb->s_dev));
+ 			sb->s_flags |= MS_RDONLY;
+ 		}
+ 		return sbd->s_type;
+ 	}
+ 
+	if (fs32_to_cpu(sb, sbd->s_time) < JAN_1_1980) {
+		/* this is likely to happen on SystemV2 FS */
+		if (sbd->s_type > 3 || sbd->s_type < 1)
+			return 0;
+		sb->sv_type = FSTYPE_SYSV2;
+		return sbd->s_type;
+	}
+	if ((sbd->s_type > 3 || sbd->s_type < 1) &&
+	    (sbd->s_type > 0x30 || sbd->s_type < 0x10))
+		return 0;
+
+	/* On Interactive Unix (ISC) Version 4.0/3.x s_type field = 0x10,
+	   0x20 or 0x30 indicates that symbolic links and the 14-character
+	   filename limit is gone. Due to lack of information about this
+           feature read-only mode seems to be a reasonable approach... -KGB */
+
+	if (sbd->s_type >= 0x10) {
+		printk("SysV FS: can't handle long file names on %s, "
+		       "forcing read-only mode.\n", kdevname(sb->s_dev));
+		sb->s_flags |= MS_RDONLY;
+	}
+
+	sb->sv_type = FSTYPE_SYSV4;
+	return sbd->s_type >= 0x10 ? (sbd->s_type >> 4) : sbd->s_type;
+}
+
+static int detect_coherent (struct super_block *sb, struct buffer_head *bh)
+{
+	struct coh_super_block * sbd;
+
+	sbd = (struct coh_super_block *) (bh->b_data + BLOCK_SIZE/2);
+	if ((memcmp(sbd->s_fname,"noname",6) && memcmp(sbd->s_fname,"xxxxx ",6))
+	    || (memcmp(sbd->s_fpack,"nopack",6) && memcmp(sbd->s_fpack,"xxxxx\n",6)))
+		return 0;
+	sb->sv_bytesex = BYTESEX_PDP;
+	sb->sv_type = FSTYPE_COH;
+	return 1;
+}
+
+static int detect_sysv_odd(struct super_block *sb, struct buffer_head *bh)
+{
+	int size = detect_sysv(sb, bh);
+
+	return size>2 ? 0 : size;
+}
+
+static struct {
+	int block;
+	int (*test)(struct super_block *, struct buffer_head *);
+} flavours[] = {
+	{1, detect_xenix},
+	{0, detect_sysv},
+	{0, detect_coherent},
+	{9, detect_sysv_odd},
+	{15,detect_sysv_odd},
+	{18,detect_sysv},
+};
+
+static char *flavour_names[] = {
+	[FSTYPE_XENIX]	"Xenix",
+	[FSTYPE_SYSV4]	"SystemV",
+	[FSTYPE_SYSV2]	"SystemV Release 2",
+	[FSTYPE_COH]	"Coherent",
+	[FSTYPE_V7]	"V7",
+	[FSTYPE_AFS]	"AFS",
+};
+
+static void (*flavour_setup[])(struct super_block *) = {
+	[FSTYPE_XENIX]	detected_xenix,
+	[FSTYPE_SYSV4]	detected_sysv4,
+	[FSTYPE_SYSV2]	detected_sysv2,
+	[FSTYPE_COH]	detected_coherent,
+	[FSTYPE_V7]	detected_v7,
+	[FSTYPE_AFS]	detected_sysv4,
+};
+
+static int complete_read_super(struct super_block *sb, int silent, int size)
+{
+	struct inode *root_inode;
+	char *found = flavour_names[sb->sv_type];
+	u_char n_bits = size+8;
+	int bsize = 1 << n_bits;
+	int bsize_4 = bsize >> 2;
+
+	sb->sv_firstinodezone = 2;
+
+	flavour_setup[sb->sv_type](sb);
+	
+	sb->sv_truncate = 1;
+	sb->sv_ndatazones = sb->sv_nzones - sb->sv_firstdatazone;
+	sb->sv_inodes_per_block = bsize >> 6;
+	sb->sv_inodes_per_block_1 = (bsize >> 6)-1;
+	sb->sv_inodes_per_block_bits = n_bits-6;
+	sb->sv_ind_per_block = bsize_4;
+	sb->sv_ind_per_block_2 = bsize_4*bsize_4;
+	sb->sv_toobig_block = 10 + bsize_4 * (1 + bsize_4 * (1 + bsize_4));
+	sb->sv_ind_per_block_bits = n_bits-2;
+
+	sb->sv_ninodes = (sb->sv_firstdatazone - sb->sv_firstinodezone)
+		<< sb->sv_inodes_per_block_bits;
+
+	sb->s_blocksize = bsize;
+	sb->s_blocksize_bits = n_bits;
+	if (!silent)
+		printk("VFS: Found a %s FS (block size = %ld) on device %s\n",
+		       found, sb->s_blocksize, bdevname(sb->s_dev));
+
+	sb->s_magic = SYSV_MAGIC_BASE + sb->sv_type;
+	/* set up enough so that it can read an inode */
+	sb->s_op = &sysv_sops;
+	root_inode = iget(sb,SYSV_ROOT_INO);
+	if (!root_inode || is_bad_inode(root_inode)) {
+		printk("SysV FS: get root inode failed\n");
+		return 0;
+	}
+	sb->s_root = d_alloc_root(root_inode);
+	if (!sb->s_root) {
+		iput(root_inode);
+		printk("SysV FS: get root dentry failed\n");
+		return 0;
+	}
+	if (sb->sv_truncate)
+		sb->s_root->d_op = &sysv_dentry_operations;
+	sb->s_flags |= MS_RDONLY;
+	sb->s_dirt = 1;
+	return 1;
+}
+
+static struct super_block *sysv_read_super(struct super_block *sb,
+					   void *data, int silent)
+{
+	struct buffer_head *bh1;
+	struct buffer_head *bh = NULL;
+	kdev_t dev = sb->s_dev;
+	unsigned long blocknr;
+	int size = 0;
+	int i;
+	
+	if (1024 != sizeof (struct xenix_super_block))
+		panic("Xenix FS: bad super-block size");
+	if ((512 != sizeof (struct sysv4_super_block))
+            || (512 != sizeof (struct sysv2_super_block)))
+		panic("SystemV FS: bad super-block size");
+	if (500 != sizeof (struct coh_super_block))
+		panic("Coherent FS: bad super-block size");
+	if (64 != sizeof (struct sysv_inode))
+		panic("sysv fs: bad i-node size");
+	set_blocksize(dev,BLOCK_SIZE);
+	sb->s_blocksize = BLOCK_SIZE;
+	sb->sv_block_base = 0;
+
+	for (i = 0; i < sizeof(flavours)/sizeof(flavours[0]) && !size; i++) {
+		brelse(bh);
+		bh = sb_bread(sb, flavours[i].block);
+		if (!bh)
+			continue;
+		size = flavours[i].test(sb, bh);
+	}
+
+	if (!size)
+		goto Eunknown;
+
+	switch (size) {
+		case 1:
+			blocknr = bh->b_blocknr << 1;
+			brelse(bh);
+			set_blocksize(dev, 512);
+			sb->s_blocksize = 512;
+			bh1 = sb_bread(sb, blocknr);
+			bh = sb_bread(sb, blocknr + 1);
+			break;
+		case 2:
+			bh1 = bh;
+			break;
+		case 3:
+			blocknr = bh->b_blocknr >> 1;
+			brelse(bh);
+			set_blocksize(dev, 2048);
+			sb->s_blocksize = 2048;
+			bh1 = bh = sb_bread(sb, blocknr);
+			break;
+		default:
+			goto Ebadsize;
+	}
+
+	if (bh && bh1) {
+		sb->sv_bh1 = bh1;
+		sb->sv_bh2 = bh;
+		if (complete_read_super(sb, silent, size))
+			return sb;
+	}
+
+	brelse(bh1);
+	brelse(bh);
+	set_blocksize(sb->s_dev,BLOCK_SIZE);
+	printk("oldfs: cannot read superblock\n");
+failed:
+	return NULL;
+
+Eunknown:
+	brelse(bh);
+	if (!silent)
+		printk("VFS: unable to find oldfs superblock on device %s\n",
+			bdevname(dev));
+	goto failed;
+Ebadsize:
+	brelse(bh);
+	if (!silent)
+		printk("VFS: oldfs: unsupported block size (%dKb)\n",
+			1<<(size-2));
+	goto failed;
+}
+
+static struct super_block *v7_read_super(struct super_block *sb,void *data,
+				  int silent)
+{
+	struct buffer_head *bh, *bh2 = NULL;
+	kdev_t dev = sb->s_dev;
+	struct v7_super_block *v7sb;
+	struct sysv_inode *v7i;
+
+	if (440 != sizeof (struct v7_super_block))
+		panic("V7 FS: bad super-block size");
+	if (64 != sizeof (struct sysv_inode))
+		panic("sysv fs: bad i-node size");
+
+	sb->sv_type = FSTYPE_V7;
+	sb->sv_bytesex = BYTESEX_PDP;
+
+	set_blocksize(dev, 512);
+	sb->s_blocksize = 512;
+
+	if ((bh = sb_bread(sb, 1)) == NULL) {
+		if (!silent)
+			printk("VFS: unable to read V7 FS superblock on "
+			       "device %s.\n", bdevname(dev));
+		goto failed;
+	}
+
+	/* plausibility check on superblock */
+	v7sb = (struct v7_super_block *) bh->b_data;
+	if (fs16_to_cpu(sb,v7sb->s_nfree) > V7_NICFREE ||
+	    fs16_to_cpu(sb,v7sb->s_ninode) > V7_NICINOD ||
+	    fs32_to_cpu(sb,v7sb->s_time) == 0)
+		goto failed;
+
+	/* plausibility check on root inode: it is a directory,
+	   with a nonzero size that is a multiple of 16 */
+	if ((bh2 = sb_bread(sb, 2)) == NULL)
+		goto failed;
+	v7i = (struct sysv_inode *)(bh2->b_data + 64);
+	if ((fs16_to_cpu(sb,v7i->i_mode) & ~0777) != S_IFDIR ||
+	    (fs32_to_cpu(sb,v7i->i_size) == 0) ||
+	    (fs32_to_cpu(sb,v7i->i_size) & 017) != 0)
+		goto failed;
+	brelse(bh2);
+
+	sb->sv_bh1 = bh;
+	sb->sv_bh2 = bh;
+	if (complete_read_super(sb, silent, 1))
+		return sb;
+
+failed:
+	brelse(bh2);
+	brelse(bh);
+	return NULL;
+}
+
+/* Every kernel module contains stuff like this. */
+
+static DECLARE_FSTYPE_DEV(sysv_fs_type, "sysv", sysv_read_super);
+static DECLARE_FSTYPE_DEV(v7_fs_type, "v7", v7_read_super);
+
+static int __init init_sysv_fs(void)
+{
+	int err = register_filesystem(&sysv_fs_type);
+	if (!err)
+		err = register_filesystem(&v7_fs_type);
+	return err;
+}
+
+static void __exit exit_sysv_fs(void)
+{
+	unregister_filesystem(&sysv_fs_type);
+	unregister_filesystem(&v7_fs_type);
+}
+
+EXPORT_NO_SYMBOLS;
+
+module_init(init_sysv_fs)
+module_exit(exit_sysv_fs)
+MODULE_LICENSE("GPL");
diff --git a/fs/sysv/symlink.c b/fs/sysv/symlink.c
new file mode 100644
index 00000000000000..bc09a374ddd4c7
--- /dev/null
+++ b/fs/sysv/symlink.c
@@ -0,0 +1,25 @@
+/*
+ *  linux/fs/sysv/symlink.c
+ *
+ *  Handling of System V filesystem fast symlinks extensions.
+ *  Aug 2001, Christoph Hellwig (hch@infradead.org)
+ */
+
+#include <linux/fs.h>
+
+static int sysv_readlink(struct dentry *dentry, char *buffer, int buflen)
+{
+	char *s = (char *)dentry->d_inode->u.sysv_i.i_data;
+	return vfs_readlink(dentry, buffer, buflen, s);
+}
+
+static int sysv_follow_link(struct dentry *dentry, struct nameidata *nd)
+{
+	char *s = (char *)dentry->d_inode->u.sysv_i.i_data;
+	return vfs_follow_link(nd, s);
+}
+
+struct inode_operations sysv_fast_symlink_inode_operations = {
+	readlink:	sysv_readlink,
+	follow_link:	sysv_follow_link,
+};
diff --git a/fs/udf/Makefile b/fs/udf/Makefile
new file mode 100644
index 00000000000000..e44aed01ad9ffc
--- /dev/null
+++ b/fs/udf/Makefile
@@ -0,0 +1,17 @@
+#
+# Makefile for the linux udf-filesystem routines.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .o file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile..
+
+O_TARGET := udf.o
+
+obj-y    := balloc.o dir.o file.o ialloc.o inode.o lowlevel.o namei.o \
+		partition.o super.o truncate.o symlink.o fsync.o \
+		crc.o directory.o misc.o udftime.o unicode.o
+obj-m    := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/udf/balloc.c b/fs/udf/balloc.c
new file mode 100644
index 00000000000000..eab06b2999d75b
--- /dev/null
+++ b/fs/udf/balloc.c
@@ -0,0 +1,948 @@
+/*
+ * balloc.c
+ *
+ * PURPOSE
+ *	Block allocation handling routines for the OSTA-UDF(tm) filesystem.
+ *
+ * CONTACTS
+ *	E-mail regarding any portion of the Linux UDF file system should be
+ *	directed to the development team mailing list (run by majordomo):
+ *		linux_udf@hpesjro.fc.hp.com
+ *
+ * COPYRIGHT
+ *	This file is distributed under the terms of the GNU General Public
+ *	License (GPL). Copies of the GPL can be obtained from:
+ *		ftp://prep.ai.mit.edu/pub/gnu/GPL
+ *	Each contributing author retains all rights to their own work.
+ *
+ *  (C) 1999-2001 Ben Fennema
+ *  (C) 1999 Stelias Computing Inc
+ *
+ * HISTORY
+ *
+ *  02/24/99 blf  Created.
+ *
+ */
+
+#include "udfdecl.h"
+
+#include <linux/locks.h>
+#include <linux/quotaops.h>
+#include <asm/bitops.h>
+
+#include "udf_i.h"
+#include "udf_sb.h"
+
+#define udf_clear_bit(nr,addr) ext2_clear_bit(nr,addr)
+#define udf_set_bit(nr,addr) ext2_set_bit(nr,addr)
+#define udf_test_bit(nr, addr) ext2_test_bit(nr, addr)
+#define udf_find_first_one_bit(addr, size) find_first_one_bit(addr, size)
+#define udf_find_next_one_bit(addr, size, offset) find_next_one_bit(addr, size, offset)
+
+#define leBPL_to_cpup(x) leNUM_to_cpup(BITS_PER_LONG, x)
+#define leNUM_to_cpup(x,y) xleNUM_to_cpup(x,y)
+#define xleNUM_to_cpup(x,y) (le ## x ## _to_cpup(y))
+#define uintBPL_t uint(BITS_PER_LONG)
+#define uint(x) xuint(x)
+#define xuint(x) uint ## x ## _t
+
+extern inline int find_next_one_bit (void * addr, int size, int offset)
+{
+	uintBPL_t * p = ((uintBPL_t *) addr) + (offset / BITS_PER_LONG);
+	uintBPL_t result = offset & ~(BITS_PER_LONG-1);
+	uintBPL_t tmp;
+
+	if (offset >= size)
+		return size;
+	size -= result;
+	offset &= (BITS_PER_LONG-1);
+	if (offset)
+	{
+		tmp = leBPL_to_cpup(p++);
+		tmp &= ~0UL << offset;
+		if (size < BITS_PER_LONG)
+			goto found_first;
+		if (tmp)
+			goto found_middle;
+		size -= BITS_PER_LONG;
+		result += BITS_PER_LONG;
+	}
+	while (size & ~(BITS_PER_LONG-1))
+	{
+		if ((tmp = leBPL_to_cpup(p++)))
+			goto found_middle;
+		result += BITS_PER_LONG;
+		size -= BITS_PER_LONG;
+	}
+	if (!size)
+		return result;
+	tmp = leBPL_to_cpup(p);
+found_first:
+	tmp &= ~0UL >> (BITS_PER_LONG-size);
+found_middle:
+	return result + ffz(~tmp);
+}
+
+#define find_first_one_bit(addr, size)\
+	find_next_one_bit((addr), (size), 0)
+
+static int read_block_bitmap(struct super_block * sb,
+	struct udf_bitmap *bitmap, unsigned int block, unsigned long bitmap_nr)
+{
+	struct buffer_head *bh = NULL;
+	int retval = 0;
+	lb_addr loc;
+
+	loc.logicalBlockNum = bitmap->s_extPosition;
+	loc.partitionReferenceNum = UDF_SB_PARTITION(sb);
+
+	bh = udf_tread(sb, udf_get_lb_pblock(sb, loc, block));
+	if (!bh)
+	{
+		retval = -EIO;
+	}
+	bitmap->s_block_bitmap[bitmap_nr] = bh;
+	return retval;
+}
+
+static int __load_block_bitmap(struct super_block * sb,
+	struct udf_bitmap *bitmap, unsigned int block_group)
+{
+	int retval = 0;
+	int nr_groups = bitmap->s_nr_groups;
+
+	if (block_group >= nr_groups)
+	{
+		udf_debug("block_group (%d) > nr_groups (%d)\n", block_group, nr_groups);
+	}
+
+	if (bitmap->s_block_bitmap[block_group])
+		return block_group;
+	else
+	{
+		retval = read_block_bitmap(sb, bitmap, block_group, block_group);
+		if (retval < 0)
+			return retval;
+		return block_group;
+	}
+}
+
+static inline int load_block_bitmap(struct super_block * sb,
+	struct udf_bitmap *bitmap, unsigned int block_group)
+{
+	int slot;
+
+	slot = __load_block_bitmap(sb, bitmap, block_group);
+
+	if (slot < 0)
+		return slot;
+
+	if (!bitmap->s_block_bitmap[slot])
+		return -EIO;
+
+	return slot;
+}
+
+static void udf_bitmap_free_blocks(struct super_block * sb,
+	struct inode * inode,
+	struct udf_bitmap *bitmap, lb_addr bloc, uint32_t offset, uint32_t count)
+{
+	struct buffer_head * bh = NULL;
+	unsigned long block;
+	unsigned long block_group;
+	unsigned long bit;
+	unsigned long i;
+	int bitmap_nr;
+	unsigned long overflow;
+
+	lock_super(sb);
+	if (bloc.logicalBlockNum < 0 ||
+		(bloc.logicalBlockNum + count) > UDF_SB_PARTLEN(sb, bloc.partitionReferenceNum))
+	{
+		udf_debug("%d < %d || %d + %d > %d\n",
+			bloc.logicalBlockNum, 0, bloc.logicalBlockNum, count,
+			UDF_SB_PARTLEN(sb, bloc.partitionReferenceNum));
+		goto error_return;
+	}
+
+	block = bloc.logicalBlockNum + offset + (sizeof(struct spaceBitmapDesc) << 3);
+
+do_more:
+	overflow = 0;
+	block_group = block >> (sb->s_blocksize_bits + 3);
+	bit = block % (sb->s_blocksize << 3);
+
+	/*
+	 * Check to see if we are freeing blocks across a group boundary.
+	 */
+	if (bit + count > (sb->s_blocksize << 3))
+	{
+		overflow = bit + count - (sb->s_blocksize << 3);
+		count -= overflow;
+	}
+	bitmap_nr = load_block_bitmap(sb, bitmap, block_group);
+	if (bitmap_nr < 0)
+		goto error_return;
+
+	bh = bitmap->s_block_bitmap[bitmap_nr];
+	for (i=0; i < count; i++)
+	{
+		if (udf_set_bit(bit + i, bh->b_data))
+		{
+			udf_debug("bit %ld already set\n", bit + i);
+			udf_debug("byte=%2x\n", ((char *)bh->b_data)[(bit + i) >> 3]);
+		}
+		else
+		{
+			if (inode)
+				DQUOT_FREE_BLOCK(inode, 1);
+			if (UDF_SB_LVIDBH(sb))
+			{
+				UDF_SB_LVID(sb)->freeSpaceTable[UDF_SB_PARTITION(sb)] =
+					cpu_to_le32(le32_to_cpu(UDF_SB_LVID(sb)->freeSpaceTable[UDF_SB_PARTITION(sb)])+1);
+			}
+		}
+	}
+	mark_buffer_dirty(bh);
+	if (overflow)
+	{
+		block += count;
+		count = overflow;
+		goto do_more;
+	}
+error_return:
+	sb->s_dirt = 1;
+	if (UDF_SB_LVIDBH(sb))
+		mark_buffer_dirty(UDF_SB_LVIDBH(sb));
+	unlock_super(sb);
+	return;
+}
+
+static int udf_bitmap_prealloc_blocks(struct super_block * sb,
+	struct inode * inode,
+	struct udf_bitmap *bitmap, uint16_t partition, uint32_t first_block,
+	uint32_t block_count)
+{
+	int alloc_count = 0;
+	int bit, block, block_group, group_start;
+	int nr_groups, bitmap_nr;
+	struct buffer_head *bh;
+
+	lock_super(sb);
+
+	if (first_block < 0 || first_block >= UDF_SB_PARTLEN(sb, partition))
+		goto out;
+
+	if (first_block + block_count > UDF_SB_PARTLEN(sb, partition))
+		block_count = UDF_SB_PARTLEN(sb, partition) - first_block;
+
+repeat:
+	nr_groups = (UDF_SB_PARTLEN(sb, partition) +
+		(sizeof(struct spaceBitmapDesc) << 3) + (sb->s_blocksize * 8) - 1) / (sb->s_blocksize * 8);
+	block = first_block + (sizeof(struct spaceBitmapDesc) << 3);
+	block_group = block >> (sb->s_blocksize_bits + 3);
+	group_start = block_group ? 0 : sizeof(struct spaceBitmapDesc);
+
+	bitmap_nr = load_block_bitmap(sb, bitmap, block_group);
+	if (bitmap_nr < 0)
+		goto out;
+	bh = bitmap->s_block_bitmap[bitmap_nr];
+
+	bit = block % (sb->s_blocksize << 3);
+
+	while (bit < (sb->s_blocksize << 3) && block_count > 0)
+	{
+		if (!udf_test_bit(bit, bh->b_data))
+			goto out;
+		else if (DQUOT_PREALLOC_BLOCK(inode, 1))
+			goto out;
+		else if (!udf_clear_bit(bit, bh->b_data))
+		{
+			udf_debug("bit already cleared for block %d\n", bit);
+			DQUOT_FREE_BLOCK(inode, 1);
+			goto out;
+		}
+		block_count --;
+		alloc_count ++;
+		bit ++;
+		block ++;
+	}
+	mark_buffer_dirty(bh);
+	if (block_count > 0)
+		goto repeat;
+out:
+	if (UDF_SB_LVIDBH(sb))
+	{
+		UDF_SB_LVID(sb)->freeSpaceTable[partition] =
+			cpu_to_le32(le32_to_cpu(UDF_SB_LVID(sb)->freeSpaceTable[partition])-alloc_count);
+		mark_buffer_dirty(UDF_SB_LVIDBH(sb));
+	}
+	sb->s_dirt = 1;
+	unlock_super(sb);
+	return alloc_count;
+}
+
+static int udf_bitmap_new_block(struct super_block * sb,
+	struct inode * inode,
+	struct udf_bitmap *bitmap, uint16_t partition, uint32_t goal, int *err)
+{
+	int newbit, bit=0, block, block_group, group_start;
+	int end_goal, nr_groups, bitmap_nr, i;
+	struct buffer_head *bh = NULL;
+	char *ptr;
+	int newblock = 0;
+
+	*err = -ENOSPC;
+	lock_super(sb);
+
+repeat:
+	if (goal < 0 || goal >= UDF_SB_PARTLEN(sb, partition))
+		goal = 0;
+
+	nr_groups = bitmap->s_nr_groups;
+	block = goal + (sizeof(struct spaceBitmapDesc) << 3);
+	block_group = block >> (sb->s_blocksize_bits + 3);
+	group_start = block_group ? 0 : sizeof(struct spaceBitmapDesc);
+
+	bitmap_nr = load_block_bitmap(sb, bitmap, block_group);
+	if (bitmap_nr < 0)
+		goto error_return;
+	bh = bitmap->s_block_bitmap[bitmap_nr];
+	ptr = memscan((char *)bh->b_data + group_start, 0xFF, sb->s_blocksize - group_start);
+
+	if ((ptr - ((char *)bh->b_data)) < sb->s_blocksize)
+	{
+		bit = block % (sb->s_blocksize << 3);
+
+		if (udf_test_bit(bit, bh->b_data))
+		{
+			goto got_block;
+		}
+		end_goal = (bit + 63) & ~63;
+		bit = udf_find_next_one_bit(bh->b_data, end_goal, bit);
+		if (bit < end_goal)
+			goto got_block;
+		ptr = memscan((char *)bh->b_data + (bit >> 3), 0xFF, sb->s_blocksize - ((bit + 7) >> 3));
+		newbit = (ptr - ((char *)bh->b_data)) << 3;
+		if (newbit < sb->s_blocksize << 3)
+		{
+			bit = newbit;
+			goto search_back;
+		}
+		newbit = udf_find_next_one_bit(bh->b_data, sb->s_blocksize << 3, bit);
+		if (newbit < sb->s_blocksize << 3)
+		{
+			bit = newbit;
+			goto got_block;
+		}
+	}
+
+	for (i=0; i<(nr_groups*2); i++)
+	{
+		block_group ++;
+		if (block_group >= nr_groups)
+			block_group = 0;
+		group_start = block_group ? 0 : sizeof(struct spaceBitmapDesc);
+
+		bitmap_nr = load_block_bitmap(sb, bitmap, block_group);
+		if (bitmap_nr < 0)
+			goto error_return;
+		bh = bitmap->s_block_bitmap[bitmap_nr];
+		if (i < nr_groups)
+		{
+			ptr = memscan((char *)bh->b_data + group_start, 0xFF, sb->s_blocksize - group_start);
+			if ((ptr - ((char *)bh->b_data)) < sb->s_blocksize)
+			{
+				bit = (ptr - ((char *)bh->b_data)) << 3;
+				break;
+			}
+		}
+		else
+		{
+			bit = udf_find_next_one_bit((char *)bh->b_data, sb->s_blocksize << 3, group_start << 3);
+			if (bit < sb->s_blocksize << 3)
+				break;
+		}
+	}
+	if (i >= (nr_groups*2))
+	{
+		unlock_super(sb);
+		return newblock;
+	}
+	if (bit < sb->s_blocksize << 3)
+		goto search_back;
+	else
+		bit = udf_find_next_one_bit(bh->b_data, sb->s_blocksize << 3, group_start << 3);
+	if (bit >= sb->s_blocksize << 3)
+	{
+		unlock_super(sb);
+		return 0;
+	}
+
+search_back:
+	for (i=0; i<7 && bit > (group_start << 3) && udf_test_bit(bit - 1, bh->b_data); i++, bit--);
+
+got_block:
+
+	/*
+	 * Check quota for allocation of this block.
+	 */
+	if (inode && DQUOT_ALLOC_BLOCK(inode, 1))
+	{
+		unlock_super(sb);
+		*err = -EDQUOT;
+		return 0;
+	}
+
+	newblock = bit + (block_group << (sb->s_blocksize_bits + 3)) -
+		(sizeof(struct spaceBitmapDesc) << 3);
+
+	if (!udf_clear_bit(bit, bh->b_data))
+	{
+		udf_debug("bit already cleared for block %d\n", bit);
+		goto repeat;
+	}
+
+	mark_buffer_dirty(bh);
+
+	if (UDF_SB_LVIDBH(sb))
+	{
+		UDF_SB_LVID(sb)->freeSpaceTable[partition] =
+			cpu_to_le32(le32_to_cpu(UDF_SB_LVID(sb)->freeSpaceTable[partition])-1);
+		mark_buffer_dirty(UDF_SB_LVIDBH(sb));
+	}
+	sb->s_dirt = 1;
+	unlock_super(sb);
+	*err = 0;
+	return newblock;
+
+error_return:
+	*err = -EIO;
+	unlock_super(sb);
+	return 0;
+}
+
+static void udf_table_free_blocks(struct super_block * sb,
+	struct inode * inode,
+	struct inode * table, lb_addr bloc, uint32_t offset, uint32_t count)
+{
+	uint32_t start, end;
+	uint32_t nextoffset, oextoffset, elen;
+	lb_addr nbloc, obloc, eloc;
+	struct buffer_head *obh, *nbh;
+	int8_t etype;
+	int i;
+
+	lock_super(sb);
+	if (bloc.logicalBlockNum < 0 ||
+		(bloc.logicalBlockNum + count) > UDF_SB_PARTLEN(sb, bloc.partitionReferenceNum))
+	{
+		udf_debug("%d < %d || %d + %d > %d\n",
+			bloc.logicalBlockNum, 0, bloc.logicalBlockNum, count,
+			UDF_SB_PARTLEN(sb, bloc.partitionReferenceNum));
+		goto error_return;
+	}
+
+	/* We do this up front - There are some error conditions that could occure,
+	   but.. oh well */
+	if (inode)
+		DQUOT_FREE_BLOCK(inode, count);
+	if (UDF_SB_LVIDBH(sb))
+	{
+		UDF_SB_LVID(sb)->freeSpaceTable[UDF_SB_PARTITION(sb)] =
+			cpu_to_le32(le32_to_cpu(UDF_SB_LVID(sb)->freeSpaceTable[UDF_SB_PARTITION(sb)])+count);
+		mark_buffer_dirty(UDF_SB_LVIDBH(sb));
+	}
+
+	start = bloc.logicalBlockNum + offset;
+	end = bloc.logicalBlockNum + offset + count - 1;
+
+	oextoffset = nextoffset = sizeof(struct unallocSpaceEntry);
+	elen = 0;
+	obloc = nbloc = UDF_I_LOCATION(table);
+
+	obh = nbh = udf_tread(sb, udf_get_lb_pblock(sb, nbloc, 0));
+	atomic_inc(&nbh->b_count);
+
+	while (count && (etype =
+		udf_next_aext(table, &nbloc, &nextoffset, &eloc, &elen, &nbh, 1)) != -1)
+	{
+		if (((eloc.logicalBlockNum + (elen >> sb->s_blocksize_bits)) ==
+			start))
+		{
+			if ((0x3FFFFFFF - elen) < (count << sb->s_blocksize_bits))
+			{
+				count -= ((0x3FFFFFFF - elen) >> sb->s_blocksize_bits);
+				start += ((0x3FFFFFFF - elen) >> sb->s_blocksize_bits);
+				elen = (etype << 30) | (0x40000000 - sb->s_blocksize);
+			}
+			else
+			{
+				elen = (etype << 30) |
+					(elen + (count << sb->s_blocksize_bits));
+				start += count;
+				count = 0;
+			}
+			udf_write_aext(table, obloc, &oextoffset, eloc, elen, obh, 1);
+		}
+		else if (eloc.logicalBlockNum == (end + 1))
+		{
+			if ((0x3FFFFFFF - elen) < (count << sb->s_blocksize_bits))
+			{
+				count -= ((0x3FFFFFFF - elen) >> sb->s_blocksize_bits);
+				end -= ((0x3FFFFFFF - elen) >> sb->s_blocksize_bits);
+				eloc.logicalBlockNum -=
+					((0x3FFFFFFF - elen) >> sb->s_blocksize_bits);
+				elen = (etype << 30) | (0x40000000 - sb->s_blocksize);
+			}
+			else
+			{
+				eloc.logicalBlockNum = start;
+				elen = (etype << 30) |
+					(elen + (count << sb->s_blocksize_bits));
+				end -= count;
+				count = 0;
+			}
+			udf_write_aext(table, obloc, &oextoffset, eloc, elen, obh, 1);
+		}
+
+		if (memcmp(&nbloc, &obloc, sizeof(lb_addr)))
+		{
+			i = -1;
+			obloc = nbloc;
+			udf_release_data(obh);
+			atomic_inc(&nbh->b_count);
+			obh = nbh;
+			oextoffset = 0;
+		}
+		else
+			oextoffset = nextoffset;
+	}
+
+	if (count)
+	{
+		/* NOTE: we CANNOT use udf_add_aext here, as it can try to allocate
+				 a new block, and since we hold the super block lock already
+				 very bad things would happen :)
+
+				 We copy the behavior of udf_add_aext, but instead of
+				 trying to allocate a new block close to the existing one,
+				 we just steal a block from the extent we are trying to add.
+
+				 It would be nice if the blocks were close together, but it
+				 isn't required.
+		*/
+
+		int adsize;
+		short_ad *sad = NULL;
+		long_ad *lad = NULL;
+		struct allocExtDesc *aed;
+
+		eloc.logicalBlockNum = start;
+		elen = EXT_RECORDED_ALLOCATED |
+			(count << sb->s_blocksize_bits);
+
+		if (UDF_I_ALLOCTYPE(table) == ICBTAG_FLAG_AD_SHORT)
+			adsize = sizeof(short_ad);
+		else if (UDF_I_ALLOCTYPE(table) == ICBTAG_FLAG_AD_LONG)
+			adsize = sizeof(long_ad);
+		else
+		{
+			udf_release_data(obh);
+			udf_release_data(nbh);
+			goto error_return;
+		}
+
+		if (nextoffset + (2 * adsize) > sb->s_blocksize)
+		{
+			char *sptr, *dptr;
+			int loffset;
+	
+			udf_release_data(obh);
+			obh = nbh;
+			obloc = nbloc;
+			oextoffset = nextoffset;
+
+			/* Steal a block from the extent being free'd */
+			nbloc.logicalBlockNum = eloc.logicalBlockNum;
+			eloc.logicalBlockNum ++;
+			elen -= sb->s_blocksize;
+
+			if (!(nbh = udf_tread(sb,
+				udf_get_lb_pblock(sb, nbloc, 0))))
+			{
+				udf_release_data(obh);
+				goto error_return;
+			}
+			aed = (struct allocExtDesc *)(nbh->b_data);
+			aed->previousAllocExtLocation = cpu_to_le32(obloc.logicalBlockNum);
+			if (nextoffset + adsize > sb->s_blocksize)
+			{
+				loffset = nextoffset;
+				aed->lengthAllocDescs = cpu_to_le32(adsize);
+				sptr = (obh)->b_data + nextoffset - adsize;
+				dptr = nbh->b_data + sizeof(struct allocExtDesc);
+				memcpy(dptr, sptr, adsize);
+				nextoffset = sizeof(struct allocExtDesc) + adsize;
+			}
+			else
+			{
+				loffset = nextoffset + adsize;
+				aed->lengthAllocDescs = cpu_to_le32(0);
+				sptr = (obh)->b_data + nextoffset;
+				nextoffset = sizeof(struct allocExtDesc);
+	
+				if (memcmp(&UDF_I_LOCATION(table), &obloc, sizeof(lb_addr)))
+				{
+					aed = (struct allocExtDesc *)(obh)->b_data;
+					aed->lengthAllocDescs =
+						cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) + adsize);
+				}
+				else
+				{
+					UDF_I_LENALLOC(table) += adsize;
+					mark_inode_dirty(table);
+				}
+			}
+			if (UDF_SB_UDFREV(sb) >= 0x0200)
+				udf_new_tag(nbh->b_data, TAG_IDENT_AED, 3, 1,
+					nbloc.logicalBlockNum, sizeof(tag));
+			else
+				udf_new_tag(nbh->b_data, TAG_IDENT_AED, 2, 1,
+					nbloc.logicalBlockNum, sizeof(tag));
+			switch (UDF_I_ALLOCTYPE(table))
+			{
+				case ICBTAG_FLAG_AD_SHORT:
+				{
+					sad = (short_ad *)sptr;
+					sad->extLength = cpu_to_le32(
+						EXT_NEXT_EXTENT_ALLOCDECS |
+						sb->s_blocksize);
+					sad->extPosition = cpu_to_le32(nbloc.logicalBlockNum);
+					break;
+				}
+				case ICBTAG_FLAG_AD_LONG:
+				{
+					lad = (long_ad *)sptr;
+					lad->extLength = cpu_to_le32(
+						EXT_NEXT_EXTENT_ALLOCDECS |
+						sb->s_blocksize);
+					lad->extLocation = cpu_to_lelb(nbloc);
+					break;
+				}
+			}
+			udf_update_tag(obh->b_data, loffset);
+			mark_buffer_dirty(obh);
+		}
+
+		if (elen) /* It's possible that stealing the block emptied the extent */
+		{
+			udf_write_aext(table, nbloc, &nextoffset, eloc, elen, nbh, 1);
+
+			if (!memcmp(&UDF_I_LOCATION(table), &nbloc, sizeof(lb_addr)))
+			{
+				UDF_I_LENALLOC(table) += adsize;
+				mark_inode_dirty(table);
+			}
+			else
+			{
+				aed = (struct allocExtDesc *)nbh->b_data;
+				aed->lengthAllocDescs =
+					cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) + adsize);
+				udf_update_tag(nbh->b_data, nextoffset);
+				mark_buffer_dirty(nbh);
+			}
+		}
+	}
+
+	udf_release_data(nbh);
+	udf_release_data(obh);
+
+error_return:
+	sb->s_dirt = 1;
+	unlock_super(sb);
+	return;
+}
+
+static int udf_table_prealloc_blocks(struct super_block * sb,
+	struct inode * inode,
+	struct inode *table, uint16_t partition, uint32_t first_block,
+	uint32_t block_count)
+{
+	int alloc_count = 0;
+	uint32_t extoffset, elen, adsize;
+	lb_addr bloc, eloc;
+	struct buffer_head *bh;
+	int8_t etype = -1;
+
+	if (first_block < 0 || first_block >= UDF_SB_PARTLEN(sb, partition))
+		return 0;
+
+	if (UDF_I_ALLOCTYPE(table) == ICBTAG_FLAG_AD_SHORT)
+		adsize = sizeof(short_ad);
+	else if (UDF_I_ALLOCTYPE(table) == ICBTAG_FLAG_AD_LONG)
+		adsize = sizeof(long_ad);
+	else
+		return 0;
+
+	lock_super(sb);
+
+	extoffset = sizeof(struct unallocSpaceEntry);
+	bloc = UDF_I_LOCATION(table);
+
+	bh = udf_tread(sb, udf_get_lb_pblock(sb, bloc, 0));
+	eloc.logicalBlockNum = 0xFFFFFFFF;
+
+	while (first_block != eloc.logicalBlockNum && (etype =
+		udf_next_aext(table, &bloc, &extoffset, &eloc, &elen, &bh, 1)) != -1)
+	{
+		udf_debug("eloc=%d, elen=%d, first_block=%d\n",
+			eloc.logicalBlockNum, elen, first_block);
+		; /* empty loop body */
+	}
+
+	if (first_block == eloc.logicalBlockNum)
+	{
+		extoffset -= adsize;
+
+		alloc_count = (elen >> sb->s_blocksize_bits);
+		if (inode && DQUOT_PREALLOC_BLOCK(inode, alloc_count > block_count ? block_count : alloc_count))
+			alloc_count = 0;
+		else if (alloc_count > block_count)
+		{
+			alloc_count = block_count;
+			eloc.logicalBlockNum += alloc_count;
+			elen -= (alloc_count << sb->s_blocksize_bits);
+			udf_write_aext(table, bloc, &extoffset, eloc, (etype << 30) | elen, bh, 1);
+		}
+		else
+			udf_delete_aext(table, bloc, extoffset, eloc, (etype << 30) | elen, bh);
+	}
+	else
+		alloc_count = 0;
+
+	udf_release_data(bh);
+
+	if (alloc_count && UDF_SB_LVIDBH(sb))
+	{
+		UDF_SB_LVID(sb)->freeSpaceTable[partition] =
+			cpu_to_le32(le32_to_cpu(UDF_SB_LVID(sb)->freeSpaceTable[partition])-alloc_count);
+		mark_buffer_dirty(UDF_SB_LVIDBH(sb));
+		sb->s_dirt = 1;
+	}
+	unlock_super(sb);
+	return alloc_count;
+}
+
+static int udf_table_new_block(struct super_block * sb,
+	struct inode * inode,
+	struct inode *table, uint16_t partition, uint32_t goal, int *err)
+{
+	uint32_t spread = 0xFFFFFFFF, nspread = 0xFFFFFFFF;
+	uint32_t newblock = 0, adsize;
+	uint32_t extoffset, goal_extoffset, elen, goal_elen = 0;
+	lb_addr bloc, goal_bloc, eloc, goal_eloc;
+	struct buffer_head *bh, *goal_bh;
+	int8_t etype;
+
+	*err = -ENOSPC;
+
+	if (UDF_I_ALLOCTYPE(table) == ICBTAG_FLAG_AD_SHORT)
+		adsize = sizeof(short_ad);
+	else if (UDF_I_ALLOCTYPE(table) == ICBTAG_FLAG_AD_LONG)
+		adsize = sizeof(long_ad);
+	else
+		return newblock;
+
+	lock_super(sb);
+
+	if (goal < 0 || goal >= UDF_SB_PARTLEN(sb, partition))
+		goal = 0;
+
+	/* We search for the closest matching block to goal. If we find a exact hit,
+	   we stop. Otherwise we keep going till we run out of extents.
+	   We store the buffer_head, bloc, and extoffset of the current closest
+	   match and use that when we are done.
+	*/
+
+	extoffset = sizeof(struct unallocSpaceEntry);
+	bloc = UDF_I_LOCATION(table);
+
+	goal_bh = bh = udf_tread(sb, udf_get_lb_pblock(sb, bloc, 0));
+	atomic_inc(&goal_bh->b_count);
+
+	while (spread && (etype =
+		udf_next_aext(table, &bloc, &extoffset, &eloc, &elen, &bh, 1)) != -1)
+	{
+		if (goal >= eloc.logicalBlockNum)
+		{
+			if (goal < eloc.logicalBlockNum + (elen >> sb->s_blocksize_bits))
+				nspread = 0;
+			else
+				nspread = goal - eloc.logicalBlockNum -
+					(elen >> sb->s_blocksize_bits);
+		}
+		else
+			nspread = eloc.logicalBlockNum - goal;
+
+		if (nspread < spread)
+		{
+			spread = nspread;
+			if (goal_bh != bh)
+			{
+				udf_release_data(goal_bh);
+				goal_bh = bh;
+				atomic_inc(&goal_bh->b_count);
+			}
+			goal_bloc = bloc;
+			goal_extoffset = extoffset - adsize;
+			goal_eloc = eloc;
+			goal_elen = (etype << 30) | elen;
+		}
+	}
+
+	udf_release_data(bh);
+
+	if (spread == 0xFFFFFFFF)
+	{
+		udf_release_data(goal_bh);
+		unlock_super(sb);
+		return 0;
+	}
+
+	/* Only allocate blocks from the beginning of the extent.
+	   That way, we only delete (empty) extents, never have to insert an
+	   extent because of splitting */
+	/* This works, but very poorly.... */
+
+	newblock = goal_eloc.logicalBlockNum;
+	goal_eloc.logicalBlockNum ++;
+	goal_elen -= sb->s_blocksize;
+
+	if (inode && DQUOT_ALLOC_BLOCK(inode, 1))
+	{
+		udf_release_data(goal_bh);
+		unlock_super(sb);
+		*err = -EDQUOT;
+		return 0;
+	}
+
+	if (goal_elen)
+		udf_write_aext(table, goal_bloc, &goal_extoffset, goal_eloc, goal_elen, goal_bh, 1);
+	else
+		udf_delete_aext(table, goal_bloc, goal_extoffset, goal_eloc, goal_elen, goal_bh);
+	udf_release_data(goal_bh);
+
+	if (UDF_SB_LVIDBH(sb))
+	{
+		UDF_SB_LVID(sb)->freeSpaceTable[partition] =
+			cpu_to_le32(le32_to_cpu(UDF_SB_LVID(sb)->freeSpaceTable[partition])-1);
+		mark_buffer_dirty(UDF_SB_LVIDBH(sb));
+	}
+
+	sb->s_dirt = 1;
+	unlock_super(sb);
+	*err = 0;
+	return newblock;
+}
+
+inline void udf_free_blocks(struct super_block * sb,
+	struct inode * inode,
+	lb_addr bloc, uint32_t offset, uint32_t count)
+{
+	uint16_t partition = bloc.partitionReferenceNum;
+
+	if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_UNALLOC_BITMAP)
+	{
+		return udf_bitmap_free_blocks(sb, inode,
+			UDF_SB_PARTMAPS(sb)[partition].s_uspace.s_bitmap,
+			bloc, offset, count);
+	}
+	else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_UNALLOC_TABLE)
+	{
+		return udf_table_free_blocks(sb, inode,
+			UDF_SB_PARTMAPS(sb)[partition].s_uspace.s_table,
+			bloc, offset, count);
+	}
+	else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_FREED_BITMAP)
+	{
+		return udf_bitmap_free_blocks(sb, inode,
+			UDF_SB_PARTMAPS(sb)[partition].s_fspace.s_bitmap,
+			bloc, offset, count);
+	}
+	else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_FREED_TABLE)
+	{
+		return udf_table_free_blocks(sb, inode,
+			UDF_SB_PARTMAPS(sb)[partition].s_fspace.s_table,
+			bloc, offset, count);
+	}
+	else
+		return;
+}
+
+inline int udf_prealloc_blocks(struct super_block * sb,
+	struct inode * inode,
+	uint16_t partition, uint32_t first_block, uint32_t block_count)
+{
+	if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_UNALLOC_BITMAP)
+	{
+		return udf_bitmap_prealloc_blocks(sb, inode,
+			UDF_SB_PARTMAPS(sb)[partition].s_uspace.s_bitmap,
+			partition, first_block, block_count);
+	}
+	else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_UNALLOC_TABLE)
+	{
+		return udf_table_prealloc_blocks(sb, inode,
+			UDF_SB_PARTMAPS(sb)[partition].s_uspace.s_table,
+			partition, first_block, block_count);
+	}
+	else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_FREED_BITMAP)
+	{
+		return udf_bitmap_prealloc_blocks(sb, inode,
+			UDF_SB_PARTMAPS(sb)[partition].s_fspace.s_bitmap,
+			partition, first_block, block_count);
+	}
+	else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_FREED_TABLE)
+	{
+		return udf_table_prealloc_blocks(sb, inode,
+			UDF_SB_PARTMAPS(sb)[partition].s_fspace.s_table,
+			partition, first_block, block_count);
+	}
+	else
+		return 0;
+}
+
+inline int udf_new_block(struct super_block * sb,
+	struct inode * inode,
+	uint16_t partition, uint32_t goal, int *err)
+{
+	if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_UNALLOC_BITMAP)
+	{
+		return udf_bitmap_new_block(sb, inode,
+			UDF_SB_PARTMAPS(sb)[partition].s_uspace.s_bitmap,
+			partition, goal, err);
+	}
+	else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_UNALLOC_TABLE)
+	{
+		return udf_table_new_block(sb, inode,
+			UDF_SB_PARTMAPS(sb)[partition].s_uspace.s_table,
+			partition, goal, err);
+	}
+	else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_FREED_BITMAP)
+	{
+		return udf_bitmap_new_block(sb, inode,
+			UDF_SB_PARTMAPS(sb)[partition].s_fspace.s_bitmap,
+			partition, goal, err);
+	}
+	else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_FREED_TABLE)
+	{
+		return udf_table_new_block(sb, inode,
+			UDF_SB_PARTMAPS(sb)[partition].s_fspace.s_table,
+			partition, goal, err);
+	}
+	else
+	{
+		*err = -EIO;
+		return 0;
+	}
+}
diff --git a/fs/udf/crc.c b/fs/udf/crc.c
new file mode 100644
index 00000000000000..1dc900e7af31ab
--- /dev/null
+++ b/fs/udf/crc.c
@@ -0,0 +1,178 @@
+/*
+ * crc.c
+ *
+ * PURPOSE
+ *	Routines to generate, calculate, and test a 16-bit CRC.
+ *
+ * DESCRIPTION
+ *	The CRC code was devised by Don P. Mitchell of AT&T Bell Laboratories
+ *	and Ned W. Rhodes of Software Systems Group. It has been published in
+ *	"Design and Validation of Computer Protocols", Prentice Hall,
+ *	Englewood Cliffs, NJ, 1991, Chapter 3, ISBN 0-13-539925-4.
+ *
+ *	Copyright is held by AT&T.
+ *
+ *	AT&T gives permission for the free use of the CRC source code.
+ *
+ * CONTACTS
+ *	E-mail regarding any portion of the Linux UDF file system should be
+ *	directed to the development team mailing list (run by majordomo):
+ *		linux_udf@hpesjro.fc.hp.com
+ *
+ * COPYRIGHT
+ *	This file is distributed under the terms of the GNU General Public
+ *	License (GPL). Copies of the GPL can be obtained from:
+ *		ftp://prep.ai.mit.edu/pub/gnu/GPL
+ *	Each contributing author retains all rights to their own work.
+ */
+
+#include "udfdecl.h"
+
+static uint16_t crc_table[256] = {
+	0x0000U, 0x1021U, 0x2042U, 0x3063U, 0x4084U, 0x50a5U, 0x60c6U, 0x70e7U,
+	0x8108U, 0x9129U, 0xa14aU, 0xb16bU, 0xc18cU, 0xd1adU, 0xe1ceU, 0xf1efU,
+	0x1231U, 0x0210U, 0x3273U, 0x2252U, 0x52b5U, 0x4294U, 0x72f7U, 0x62d6U,
+	0x9339U, 0x8318U, 0xb37bU, 0xa35aU, 0xd3bdU, 0xc39cU, 0xf3ffU, 0xe3deU,
+	0x2462U, 0x3443U, 0x0420U, 0x1401U, 0x64e6U, 0x74c7U, 0x44a4U, 0x5485U,
+	0xa56aU, 0xb54bU, 0x8528U, 0x9509U, 0xe5eeU, 0xf5cfU, 0xc5acU, 0xd58dU,
+	0x3653U, 0x2672U, 0x1611U, 0x0630U, 0x76d7U, 0x66f6U, 0x5695U, 0x46b4U,
+	0xb75bU, 0xa77aU, 0x9719U, 0x8738U, 0xf7dfU, 0xe7feU, 0xd79dU, 0xc7bcU,
+	0x48c4U, 0x58e5U, 0x6886U, 0x78a7U, 0x0840U, 0x1861U, 0x2802U, 0x3823U,
+	0xc9ccU, 0xd9edU, 0xe98eU, 0xf9afU, 0x8948U, 0x9969U, 0xa90aU, 0xb92bU,
+	0x5af5U, 0x4ad4U, 0x7ab7U, 0x6a96U, 0x1a71U, 0x0a50U, 0x3a33U, 0x2a12U,
+	0xdbfdU, 0xcbdcU, 0xfbbfU, 0xeb9eU, 0x9b79U, 0x8b58U, 0xbb3bU, 0xab1aU,
+	0x6ca6U, 0x7c87U, 0x4ce4U, 0x5cc5U, 0x2c22U, 0x3c03U, 0x0c60U, 0x1c41U,
+	0xedaeU, 0xfd8fU, 0xcdecU, 0xddcdU, 0xad2aU, 0xbd0bU, 0x8d68U, 0x9d49U,
+	0x7e97U, 0x6eb6U, 0x5ed5U, 0x4ef4U, 0x3e13U, 0x2e32U, 0x1e51U, 0x0e70U,
+	0xff9fU, 0xefbeU, 0xdfddU, 0xcffcU, 0xbf1bU, 0xaf3aU, 0x9f59U, 0x8f78U,
+	0x9188U, 0x81a9U, 0xb1caU, 0xa1ebU, 0xd10cU, 0xc12dU, 0xf14eU, 0xe16fU,
+	0x1080U, 0x00a1U, 0x30c2U, 0x20e3U, 0x5004U, 0x4025U, 0x7046U, 0x6067U,
+	0x83b9U, 0x9398U, 0xa3fbU, 0xb3daU, 0xc33dU, 0xd31cU, 0xe37fU, 0xf35eU,
+	0x02b1U, 0x1290U, 0x22f3U, 0x32d2U, 0x4235U, 0x5214U, 0x6277U, 0x7256U,
+	0xb5eaU, 0xa5cbU, 0x95a8U, 0x8589U, 0xf56eU, 0xe54fU, 0xd52cU, 0xc50dU,
+	0x34e2U, 0x24c3U, 0x14a0U, 0x0481U, 0x7466U, 0x6447U, 0x5424U, 0x4405U,
+	0xa7dbU, 0xb7faU, 0x8799U, 0x97b8U, 0xe75fU, 0xf77eU, 0xc71dU, 0xd73cU,
+	0x26d3U, 0x36f2U, 0x0691U, 0x16b0U, 0x6657U, 0x7676U, 0x4615U, 0x5634U,
+	0xd94cU, 0xc96dU, 0xf90eU, 0xe92fU, 0x99c8U, 0x89e9U, 0xb98aU, 0xa9abU,
+	0x5844U, 0x4865U, 0x7806U, 0x6827U, 0x18c0U, 0x08e1U, 0x3882U, 0x28a3U,
+	0xcb7dU, 0xdb5cU, 0xeb3fU, 0xfb1eU, 0x8bf9U, 0x9bd8U, 0xabbbU, 0xbb9aU,
+	0x4a75U, 0x5a54U, 0x6a37U, 0x7a16U, 0x0af1U, 0x1ad0U, 0x2ab3U, 0x3a92U,
+	0xfd2eU, 0xed0fU, 0xdd6cU, 0xcd4dU, 0xbdaaU, 0xad8bU, 0x9de8U, 0x8dc9U,
+	0x7c26U, 0x6c07U, 0x5c64U, 0x4c45U, 0x3ca2U, 0x2c83U, 0x1ce0U, 0x0cc1U,
+	0xef1fU, 0xff3eU, 0xcf5dU, 0xdf7cU, 0xaf9bU, 0xbfbaU, 0x8fd9U, 0x9ff8U,
+	0x6e17U, 0x7e36U, 0x4e55U, 0x5e74U, 0x2e93U, 0x3eb2U, 0x0ed1U, 0x1ef0U
+};
+
+/*
+ * udf_crc
+ *
+ * PURPOSE
+ *	Calculate a 16-bit CRC checksum using ITU-T V.41 polynomial.
+ *
+ * DESCRIPTION
+ *	The OSTA-UDF(tm) 1.50 standard states that using CRCs is mandatory.
+ *	The polynomial used is:	x^16 + x^12 + x^15 + 1
+ *
+ * PRE-CONDITIONS
+ *	data		Pointer to the data block.
+ *	size		Size of the data block.
+ *
+ * POST-CONDITIONS
+ *	<return>	CRC of the data block.
+ *
+ * HISTORY
+ *	July 21, 1997 - Andrew E. Mileski
+ *	Adapted from OSTA-UDF(tm) 1.50 standard.
+ */
+extern uint16_t
+udf_crc(uint8_t *data, uint32_t size, uint16_t crc)
+{
+	while (size--)
+		crc = crc_table[(crc >> 8 ^ *(data++)) & 0xffU] ^ (crc << 8);
+
+	return crc;
+}
+
+/****************************************************************************/
+#if defined(TEST)
+
+/*
+ * PURPOSE
+ *	Test udf_crc()
+ *
+ * HISTORY
+ *	July 21, 1997 - Andrew E. Mileski
+ *	Adapted from OSTA-UDF(tm) 1.50 standard.
+ */
+
+unsigned char bytes[] = { 0x70U, 0x6AU, 0x77U };
+
+int main(void)
+{
+	unsigned short x;
+
+	x = udf_crc16(bytes, sizeof bytes);
+	printf("udf_crc16: calculated = %4.4x, correct = %4.4x\n", x, 0x3299U);
+
+	return 0;
+}
+
+#endif /* defined(TEST) */
+
+/****************************************************************************/
+#if defined(GENERATE)
+
+/*
+ * PURPOSE
+ *	Generate a table for fast 16-bit CRC calculations (any polynomial).
+ *
+ * DESCRIPTION
+ *	The ITU-T V.41 polynomial is 010041.
+ *
+ * HISTORY
+ *	July 21, 1997 - Andrew E. Mileski
+ *	Adapted from OSTA-UDF(tm) 1.50 standard.
+ */
+
+#include <stdio.h>
+
+int main(int argc, char **argv)
+{
+	unsigned long crc, poly;
+	int n, i;
+
+	/* Get the polynomial */
+	sscanf(argv[1], "%lo", &poly);
+	if (poly & 0xffff0000U){
+		fprintf(stderr, "polynomial is too large\en");
+		exit(1);
+	}
+
+	printf("/* CRC 0%o */\n", poly);
+
+	/* Create a table */
+	printf("static unsigned short crc_table[256] = {\n");
+	for (n = 0; n < 256; n++){
+		if (n % 8 == 0)
+			printf("\t");
+		crc = n << 8;
+		for (i = 0; i < 8; i++){
+			if(crc & 0x8000U)
+				crc = (crc << 1) ^ poly;
+			else
+				crc <<= 1;
+		crc &= 0xFFFFU;
+		}
+		if (n == 255)
+			printf("0x%04xU ", crc);
+		else
+			printf("0x%04xU, ", crc);
+		if(n % 8 == 7)
+			printf("\n");
+	}
+	printf("};\n");
+
+	return 0;
+}
+
+#endif /* defined(GENERATE) */
diff --git a/fs/udf/dir.c b/fs/udf/dir.c
new file mode 100644
index 00000000000000..0d1623d0996e51
--- /dev/null
+++ b/fs/udf/dir.c
@@ -0,0 +1,257 @@
+/*
+ * dir.c
+ *
+ * PURPOSE
+ *  Directory handling routines for the OSTA-UDF(tm) filesystem.
+ *
+ * CONTACTS
+ *	E-mail regarding any portion of the Linux UDF file system should be
+ *	directed to the development team mailing list (run by majordomo):
+ *		linux_udf@hpesjro.fc.hp.com
+ *
+ * COPYRIGHT
+ *	This file is distributed under the terms of the GNU General Public
+ *	License (GPL). Copies of the GPL can be obtained from:
+ *		ftp://prep.ai.mit.edu/pub/gnu/GPL
+ *	Each contributing author retains all rights to their own work.
+ *
+ *  (C) 1998-2001 Ben Fennema
+ *
+ * HISTORY
+ *
+ *  10/05/98 dgb  Split directory operations into it's own file
+ *                Implemented directory reads via do_udf_readdir
+ *  10/06/98      Made directory operations work!
+ *  11/17/98      Rewrote directory to support ICBTAG_FLAG_AD_LONG
+ *  11/25/98 blf  Rewrote directory handling (readdir+lookup) to support reading
+ *                across blocks.
+ *  12/12/98      Split out the lookup code to namei.c. bulk of directory
+ *                code now in directory.c:udf_fileident_read.
+ */
+
+#include "udfdecl.h"
+
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+
+#include "udf_i.h"
+#include "udf_sb.h"
+
+/* Prototypes for file operations */
+static int udf_readdir(struct file *, void *, filldir_t);
+static int do_udf_readdir(struct inode *, struct file *, filldir_t, void *);
+
+/* readdir and lookup functions */
+
+struct file_operations udf_dir_operations = {
+	read:			generic_read_dir,
+	readdir:		udf_readdir,
+	ioctl:			udf_ioctl,
+	fsync:			udf_fsync_file,
+};
+
+/*
+ * udf_readdir
+ *
+ * PURPOSE
+ *	Read a directory entry.
+ *
+ * DESCRIPTION
+ *	Optional - sys_getdents() will return -ENOTDIR if this routine is not
+ *	available.
+ *
+ *	Refer to sys_getdents() in fs/readdir.c
+ *	sys_getdents() -> .
+ *
+ * PRE-CONDITIONS
+ *	filp			Pointer to directory file.
+ *	buf			Pointer to directory entry buffer.
+ *	filldir			Pointer to filldir function.
+ *
+ * POST-CONDITIONS
+ *	<return>		>=0 on success.
+ *
+ * HISTORY
+ *	July 1, 1997 - Andrew E. Mileski
+ *	Written, tested, and released.
+ */
+
+int udf_readdir(struct file *filp, void *dirent, filldir_t filldir)
+{
+	struct inode *dir = filp->f_dentry->d_inode;
+	int result;
+
+	if ( filp->f_pos == 0 ) 
+	{
+		if (filldir(dirent, ".", 1, filp->f_pos, dir->i_ino, DT_DIR) < 0)
+			return 0;
+		filp->f_pos ++;
+	}
+ 
+	result = do_udf_readdir(dir, filp, filldir, dirent);
+	UPDATE_ATIME(dir);
+ 	return result;
+}
+
+static int 
+do_udf_readdir(struct inode * dir, struct file *filp, filldir_t filldir, void *dirent)
+{
+	struct udf_fileident_bh fibh;
+	struct fileIdentDesc *fi=NULL;
+	struct fileIdentDesc cfi;
+	int block, iblock;
+	loff_t nf_pos = filp->f_pos - 1;
+	int flen;
+	char fname[255];
+	char *nameptr;
+	uint16_t liu;
+	uint8_t lfi;
+	loff_t size = (udf_ext0_offset(dir) + dir->i_size) >> 2;
+	struct buffer_head * bh = NULL, * tmp, * bha[16];
+	lb_addr bloc, eloc;
+	uint32_t extoffset, elen, offset;
+	int i, num;
+	unsigned int dt_type;
+
+	if (nf_pos >= size)
+		return 0;
+
+	if (nf_pos == 0)
+		nf_pos = (udf_ext0_offset(dir) >> 2);
+
+	fibh.soffset = fibh.eoffset = (nf_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2;
+	if (inode_bmap(dir, nf_pos >> (dir->i_sb->s_blocksize_bits - 2),
+		&bloc, &extoffset, &eloc, &elen, &offset, &bh) == (EXT_RECORDED_ALLOCATED >> 30))
+	{
+		offset >>= dir->i_sb->s_blocksize_bits;
+		block = udf_get_lb_pblock(dir->i_sb, eloc, offset);
+		if ((++offset << dir->i_sb->s_blocksize_bits) < elen)
+		{
+			if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_SHORT)
+				extoffset -= sizeof(short_ad);
+			else if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_LONG)
+				extoffset -= sizeof(long_ad);
+		}
+		else
+			offset = 0;
+	}
+	else
+	{
+		udf_release_data(bh);
+		return -ENOENT;
+	}
+
+	if (!(fibh.sbh = fibh.ebh = udf_tread(dir->i_sb, block)))
+	{
+		udf_release_data(bh);
+		return -EIO;
+	}
+
+	if (!(offset & ((16 >> (dir->i_sb->s_blocksize_bits - 9))-1)))
+	{
+		i = 16 >> (dir->i_sb->s_blocksize_bits - 9);
+		if (i+offset > (elen >> dir->i_sb->s_blocksize_bits))
+			i = (elen >> dir->i_sb->s_blocksize_bits)-offset;
+		for (num=0; i>0; i--)
+		{
+			block = udf_get_lb_pblock(dir->i_sb, eloc, offset+i);
+			tmp = udf_tgetblk(dir->i_sb, block);
+			if (tmp && !buffer_uptodate(tmp) && !buffer_locked(tmp))
+				bha[num++] = tmp;
+			else
+				brelse(tmp);
+		}
+		if (num)
+		{
+			ll_rw_block(READA, num, bha);
+			for (i=0; i<num; i++)
+				brelse(bha[i]);
+		}
+	}
+
+	while ( nf_pos < size )
+	{
+		filp->f_pos = nf_pos + 1;
+
+		fi = udf_fileident_read(dir, &nf_pos, &fibh, &cfi, &bloc, &extoffset, &eloc, &elen, &offset, &bh);
+
+		if (!fi)
+		{
+			if (fibh.sbh != fibh.ebh)
+				udf_release_data(fibh.ebh);
+			udf_release_data(fibh.sbh);
+			udf_release_data(bh);
+			return 0;
+		}
+
+		liu = le16_to_cpu(cfi.lengthOfImpUse);
+		lfi = cfi.lengthFileIdent;
+
+		if (fibh.sbh == fibh.ebh)
+			nameptr = fi->fileIdent + liu;
+		else
+		{
+			int poffset;	/* Unpaded ending offset */
+
+			poffset = fibh.soffset + sizeof(struct fileIdentDesc) + liu + lfi;
+
+			if (poffset >= lfi)
+				nameptr = (char *)(fibh.ebh->b_data + poffset - lfi);
+			else
+			{
+				nameptr = fname;
+				memcpy(nameptr, fi->fileIdent + liu, lfi - poffset);
+				memcpy(nameptr + lfi - poffset, fibh.ebh->b_data, poffset);
+			}
+		}
+
+		if ( (cfi.fileCharacteristics & FID_FILE_CHAR_DELETED) != 0 )
+		{
+			if ( !UDF_QUERY_FLAG(dir->i_sb, UDF_FLAG_UNDELETE) )
+				continue;
+		}
+		
+		if ( (cfi.fileCharacteristics & FID_FILE_CHAR_HIDDEN) != 0 )
+		{
+			if ( !UDF_QUERY_FLAG(dir->i_sb, UDF_FLAG_UNHIDE) )
+				continue;
+		}
+
+		if ( cfi.fileCharacteristics & FID_FILE_CHAR_PARENT )
+		{
+			iblock = udf_get_lb_pblock(dir->i_sb, UDF_I_LOCATION(filp->f_dentry->d_parent->d_inode), 0);
+			flen = 2;
+			memcpy(fname, "..", flen);
+			dt_type = DT_DIR;
+		}
+		else
+		{
+			iblock = udf_get_lb_pblock(dir->i_sb, lelb_to_cpu(cfi.icb.extLocation), 0);
+			flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi);
+			dt_type = DT_UNKNOWN;
+		}
+
+		if (flen)
+		{
+			if (filldir(dirent, fname, flen, filp->f_pos, iblock, dt_type) < 0)
+			{
+				if (fibh.sbh != fibh.ebh)
+					udf_release_data(fibh.ebh);
+				udf_release_data(fibh.sbh);
+				udf_release_data(bh);
+	 			return 0;
+			}
+		}
+	} /* end while */
+
+	filp->f_pos = nf_pos + 1;
+
+	if (fibh.sbh != fibh.ebh)
+		udf_release_data(fibh.ebh);
+	udf_release_data(fibh.sbh);
+	udf_release_data(bh);
+
+	return 0;
+}
diff --git a/fs/udf/directory.c b/fs/udf/directory.c
new file mode 100644
index 00000000000000..b17105c947cfb0
--- /dev/null
+++ b/fs/udf/directory.c
@@ -0,0 +1,327 @@
+/*
+ * directory.c
+ *
+ * PURPOSE
+ *	Directory related functions
+ *
+ * CONTACTS
+ *	E-mail regarding any portion of the Linux UDF file system should be
+ *	directed to the development team mailing list (run by majordomo):
+ *		linux_udf@hpesjro.fc.hp.com
+ *
+ * COPYRIGHT
+ *	This file is distributed under the terms of the GNU General Public
+ *	License (GPL). Copies of the GPL can be obtained from:
+ *		ftp://prep.ai.mit.edu/pub/gnu/GPL
+ *	Each contributing author retains all rights to their own work.
+ */
+
+#include "udfdecl.h"
+
+#include <linux/fs.h>
+#include <linux/string.h>
+
+uint8_t * udf_filead_read(struct inode *dir, uint8_t *tmpad, uint8_t ad_size,
+	lb_addr fe_loc, int *pos, int *offset, struct buffer_head **bh, int *error)
+{
+	int loffset = *offset;
+	int block;
+	uint8_t *ad;
+	int remainder;
+
+	*error = 0;
+
+	ad = (uint8_t *)(*bh)->b_data + *offset;
+	*offset += ad_size;
+
+	if (!ad)
+	{
+		udf_release_data(*bh);
+		*error = 1;
+		return NULL;
+	}
+
+	if (*offset == dir->i_sb->s_blocksize)
+	{
+		udf_release_data(*bh);
+		block = udf_get_lb_pblock(dir->i_sb, fe_loc, ++*pos);
+		if (!block)
+			return NULL;
+		if (!(*bh = udf_tread(dir->i_sb, block)))
+			return NULL;
+	}
+	else if (*offset > dir->i_sb->s_blocksize)
+	{
+		ad = tmpad;
+
+		remainder = dir->i_sb->s_blocksize - loffset;
+		memcpy((uint8_t *)ad, (*bh)->b_data + loffset, remainder);
+
+		udf_release_data(*bh);
+		block = udf_get_lb_pblock(dir->i_sb, fe_loc, ++*pos);
+		if (!block)
+			return NULL;
+		if (!((*bh) = udf_tread(dir->i_sb, block)))
+			return NULL;
+
+		memcpy((uint8_t *)ad + remainder, (*bh)->b_data, ad_size - remainder);
+		*offset = ad_size - remainder;
+	}
+	return ad;
+}
+
+struct fileIdentDesc *
+udf_fileident_read(struct inode *dir, loff_t *nf_pos,
+	struct udf_fileident_bh *fibh,
+	struct fileIdentDesc *cfi,
+	lb_addr *bloc, uint32_t *extoffset, 
+	lb_addr *eloc, uint32_t *elen,
+	uint32_t *offset, struct buffer_head **bh)
+{
+	struct fileIdentDesc *fi;
+	int i, num, block;
+	struct buffer_head * tmp, * bha[16];
+
+	fibh->soffset = fibh->eoffset;
+
+	if (fibh->eoffset == dir->i_sb->s_blocksize)
+	{
+		int lextoffset = *extoffset;
+
+		if (udf_next_aext(dir, bloc, extoffset, eloc, elen, bh, 1) !=
+			(EXT_RECORDED_ALLOCATED >> 30))
+		{
+			return NULL;
+		}
+
+		block = udf_get_lb_pblock(dir->i_sb, *eloc, *offset);
+
+		(*offset) ++;
+
+		if ((*offset << dir->i_sb->s_blocksize_bits) >= *elen)
+			*offset = 0;
+		else
+			*extoffset = lextoffset;
+
+		udf_release_data(fibh->sbh);
+		if (!(fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block)))
+			return NULL;
+		fibh->soffset = fibh->eoffset = 0;
+
+		if (!(*offset & ((16 >> (dir->i_sb->s_blocksize_bits - 9))-1)))
+		{
+			i = 16 >> (dir->i_sb->s_blocksize_bits - 9);
+			if (i+*offset > (*elen >> dir->i_sb->s_blocksize_bits))
+				i = (*elen >> dir->i_sb->s_blocksize_bits)-*offset;
+			for (num=0; i>0; i--)
+			{
+				block = udf_get_lb_pblock(dir->i_sb, *eloc, *offset+i);
+				tmp = udf_tgetblk(dir->i_sb, block);
+				if (tmp && !buffer_uptodate(tmp) && !buffer_locked(tmp))
+					bha[num++] = tmp;
+				else
+					brelse(tmp);
+			}
+			if (num)
+			{
+				ll_rw_block(READA, num, bha);
+				for (i=0; i<num; i++)
+					brelse(bha[i]);
+			}
+		}
+	}
+	else if (fibh->sbh != fibh->ebh)
+	{
+		udf_release_data(fibh->sbh);
+		fibh->sbh = fibh->ebh;
+	}
+
+	fi = udf_get_fileident(fibh->sbh->b_data, dir->i_sb->s_blocksize,
+		&(fibh->eoffset));
+
+	if (!fi)
+		return NULL;
+
+	*nf_pos += ((fibh->eoffset - fibh->soffset) >> 2);
+
+	if (fibh->eoffset <= dir->i_sb->s_blocksize)
+	{
+		memcpy((uint8_t *)cfi, (uint8_t *)fi, sizeof(struct fileIdentDesc));
+	}
+	else if (fibh->eoffset > dir->i_sb->s_blocksize)
+	{
+		int lextoffset = *extoffset;
+
+		if (udf_next_aext(dir, bloc, extoffset, eloc, elen, bh, 1) !=
+			(EXT_RECORDED_ALLOCATED >> 30))
+		{
+			return NULL;
+		}
+
+		block = udf_get_lb_pblock(dir->i_sb, *eloc, *offset);
+
+		(*offset) ++;
+
+		if ((*offset << dir->i_sb->s_blocksize_bits) >= *elen)
+			*offset = 0;
+		else
+			*extoffset = lextoffset;
+
+		fibh->soffset -= dir->i_sb->s_blocksize;
+		fibh->eoffset -= dir->i_sb->s_blocksize;
+
+		if (!(fibh->ebh = udf_tread(dir->i_sb, block)))
+			return NULL;
+
+		if (sizeof(struct fileIdentDesc) > - fibh->soffset)
+		{
+			int fi_len;
+
+			memcpy((uint8_t *)cfi, (uint8_t *)fi, - fibh->soffset);
+			memcpy((uint8_t *)cfi - fibh->soffset, fibh->ebh->b_data,
+				sizeof(struct fileIdentDesc) + fibh->soffset);
+
+			fi_len = (sizeof(struct fileIdentDesc) + cfi->lengthFileIdent +
+				le16_to_cpu(cfi->lengthOfImpUse) + 3) & ~3;
+
+			*nf_pos += ((fi_len - (fibh->eoffset - fibh->soffset)) >> 2);
+			fibh->eoffset = fibh->soffset + fi_len;
+		}
+		else
+		{
+			memcpy((uint8_t *)cfi, (uint8_t *)fi, sizeof(struct fileIdentDesc));
+		}
+	}
+	return fi;
+}
+
+struct fileIdentDesc * 
+udf_get_fileident(void * buffer, int bufsize, int * offset)
+{
+	struct fileIdentDesc *fi;
+	int lengthThisIdent;
+	uint8_t * ptr;
+	int padlen;
+
+	if ( (!buffer) || (!offset) ) {
+		udf_debug("invalidparms\n, buffer=%p, offset=%p\n", buffer, offset);
+		return NULL;
+	}
+
+	ptr = buffer;
+
+	if ( (*offset > 0) && (*offset < bufsize) ) {
+		ptr += *offset;
+	}
+	fi=(struct fileIdentDesc *)ptr;
+	if (le16_to_cpu(fi->descTag.tagIdent) != TAG_IDENT_FID)
+	{
+		udf_debug("0x%x != TAG_IDENT_FID\n",
+			le16_to_cpu(fi->descTag.tagIdent));
+		udf_debug("offset: %u sizeof: %lu bufsize: %u\n",
+			*offset, (unsigned long)sizeof(struct fileIdentDesc), bufsize);
+		return NULL;
+	}
+	if ( (*offset + sizeof(struct fileIdentDesc)) > bufsize )
+	{
+		lengthThisIdent = sizeof(struct fileIdentDesc);
+	}
+	else
+		lengthThisIdent = sizeof(struct fileIdentDesc) +
+			fi->lengthFileIdent + le16_to_cpu(fi->lengthOfImpUse);
+
+	/* we need to figure padding, too! */
+	padlen = lengthThisIdent % UDF_NAME_PAD;
+	if (padlen)
+		lengthThisIdent += (UDF_NAME_PAD - padlen);
+	*offset = *offset + lengthThisIdent;
+
+	return fi;
+}
+
+extent_ad *
+udf_get_fileextent(void * buffer, int bufsize, int * offset)
+{
+	extent_ad * ext;
+	struct fileEntry *fe;
+	uint8_t * ptr;
+
+	if ( (!buffer) || (!offset) )
+	{
+		printk(KERN_ERR "udf: udf_get_fileextent() invalidparms\n");
+		return NULL;
+	}
+
+	fe = (struct fileEntry *)buffer;
+
+	if ( le16_to_cpu(fe->descTag.tagIdent) != TAG_IDENT_FE )
+	{
+		udf_debug("0x%x != TAG_IDENT_FE\n",
+			le16_to_cpu(fe->descTag.tagIdent));
+		return NULL;
+	}
+
+	ptr=(uint8_t *)(fe->extendedAttr) + le32_to_cpu(fe->lengthExtendedAttr);
+
+	if ( (*offset > 0) && (*offset < le32_to_cpu(fe->lengthAllocDescs)) )
+	{
+		ptr += *offset;
+	}
+
+	ext = (extent_ad *)ptr;
+
+	*offset = *offset + sizeof(extent_ad);
+	return ext;
+}
+
+short_ad *
+udf_get_fileshortad(void * buffer, int maxoffset, int *offset, int inc)
+{
+	short_ad * sa;
+	uint8_t * ptr;
+
+	if ( (!buffer) || (!offset) )
+	{
+		printk(KERN_ERR "udf: udf_get_fileshortad() invalidparms\n");
+		return NULL;
+	}
+
+	ptr = (uint8_t *)buffer;
+
+	if ( (*offset > 0) && (*offset < maxoffset) )
+		ptr += *offset;
+	else
+		return NULL;
+
+	if ((sa = (short_ad *)ptr)->extLength == 0)
+		return NULL;
+	else if (inc)
+		(*offset) += sizeof(short_ad);
+	return sa;
+}
+
+long_ad *
+udf_get_filelongad(void * buffer, int maxoffset, int * offset, int inc)
+{
+	long_ad * la;
+	uint8_t * ptr;
+
+	if ( (!buffer) || !(offset) ) 
+	{
+		printk(KERN_ERR "udf: udf_get_filelongad() invalidparms\n");
+		return NULL;
+	}
+
+	ptr = (uint8_t *)buffer;
+
+	if ( (*offset > 0) && (*offset < maxoffset) )
+		ptr += *offset;
+	else
+		return NULL;
+
+	if ((la = (long_ad *)ptr)->extLength == 0)
+		return NULL;
+	else if (inc)
+		(*offset) += sizeof(long_ad);
+	return la;
+}
diff --git a/fs/udf/ecma_167.h b/fs/udf/ecma_167.h
new file mode 100644
index 00000000000000..6e42f6fd6dc8aa
--- /dev/null
+++ b/fs/udf/ecma_167.h
@@ -0,0 +1,822 @@
+/*
+ * ecma_167.h
+ *
+ * This file is based on ECMA-167 3rd edition (June 1997)
+ * http://www.ecma.ch
+ *
+ * Copyright (c) 2001-2002  Ben Fennema <bfennema@falcon.csc.calpoly.edu>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU Public License ("GPL").
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <linux/types.h>
+
+#ifndef _ECMA_167_H
+#define _ECMA_167_H 1
+
+/* Character set specification (ECMA 167r3 1/7.2.1) */
+typedef struct
+{
+	uint8_t		charSetType;
+	uint8_t		charSetInfo[63];
+} __attribute__ ((packed)) charspec;
+
+/* Character Set Type (ECMA 167r3 1/7.2.1.1) */
+#define CHARSPEC_TYPE_CS0		0x00	/* (1/7.2.2) */
+#define CHARSPEC_TYPE_CS1		0x01	/* (1/7.2.3) */
+#define CHARSPEC_TYPE_CS2		0x02	/* (1/7.2.4) */
+#define CHARSPEC_TYPE_CS3		0x03	/* (1/7.2.5) */
+#define CHARSPEC_TYPE_CS4		0x04	/* (1/7.2.6) */
+#define CHARSPEC_TYPE_CS5		0x05	/* (1/7.2.7) */
+#define CHARSPEC_TYPE_CS6		0x06	/* (1/7.2.8) */
+#define CHARSPEC_TYPE_CS7		0x07	/* (1/7.2.9) */
+#define CHARSPEC_TYPE_CS8		0x08	/* (1/7.2.10) */
+
+typedef uint8_t		dstring;
+
+/* Timestamp (ECMA 167r3 1/7.3) */
+typedef struct
+{
+	uint16_t	typeAndTimezone;
+	int16_t		year;
+	uint8_t		month;
+	uint8_t		day;
+	uint8_t		hour;
+	uint8_t		minute;
+	uint8_t		second;
+	uint8_t		centiseconds;
+	uint8_t		hundredsOfMicroseconds;
+	uint8_t		microseconds;
+} __attribute__ ((packed)) timestamp;
+
+/* Type and Time Zone (ECMA 167r3 1/7.3.1) */
+#define TIMESTAMP_TYPE_MASK		0xF000
+#define TIMESTAMP_TYPE_CUT		0x0000
+#define TIMESTAMP_TYPE_LOCAL		0x1000
+#define TIMESTAMP_TYPE_AGREEMENT	0x2000
+#define TIMESTAMP_TIMEZONE_MASK		0x0FFF
+
+/* Entity identifier (ECMA 167r3 1/7.4) */
+typedef struct
+{
+	uint8_t		flags;
+	uint8_t		ident[23];
+	uint8_t		identSuffix[8];
+} __attribute__ ((packed)) regid;
+
+/* Flags (ECMA 167r3 1/7.4.1) */
+#define ENTITYID_FLAGS_DIRTY		0x00
+#define ENTITYID_FLAGS_PROTECTED	0x01
+
+/* Volume Structure Descriptor (ECMA 167r3 2/9.1) */
+#define VSD_STD_ID_LEN			5
+struct volStructDesc
+{
+	uint8_t		structType;
+	uint8_t		stdIdent[VSD_STD_ID_LEN];
+	uint8_t		structVersion;
+	uint8_t		structData[2041];
+} __attribute__ ((packed));
+
+/* Standard Identifier (EMCA 167r2 2/9.1.2) */
+#define VSD_STD_ID_NSR02		"NSR02"	/* (3/9.1) */
+
+/* Standard Identifier (ECMA 167r3 2/9.1.2) */
+#define VSD_STD_ID_BEA01		"BEA01"	/* (2/9.2) */
+#define VSD_STD_ID_BOOT2		"BOOT2"	/* (2/9.4) */
+#define VSD_STD_ID_CD001		"CD001"	/* (ECMA-119) */
+#define VSD_STD_ID_CDW02		"CDW02"	/* (ECMA-168) */
+#define VSD_STD_ID_NSR03		"NSR03"	/* (3/9.1) */
+#define VSD_STD_ID_TEA01		"TEA01"	/* (2/9.3) */
+
+/* Beginning Extended Area Descriptor (ECMA 167r3 2/9.2) */
+struct beginningExtendedAreaDesc
+{
+	uint8_t		structType;
+	uint8_t		stdIdent[VSD_STD_ID_LEN];
+	uint8_t		structVersion;
+	uint8_t		structData[2041];
+} __attribute__ ((packed));
+
+/* Terminating Extended Area Descriptor (ECMA 167r3 2/9.3) */
+struct terminatingExtendedAreaDesc
+{
+	uint8_t		structType;
+	uint8_t		stdIdent[VSD_STD_ID_LEN];
+	uint8_t		structVersion;
+	uint8_t		structData[2041];
+} __attribute__ ((packed));
+
+/* Boot Descriptor (ECMA 167r3 2/9.4) */
+struct bootDesc
+{
+	uint8_t		structType;
+	uint8_t		stdIdent[VSD_STD_ID_LEN];
+	uint8_t		structVersion;
+	uint8_t		reserved1;
+	regid		archType;
+	regid		bootIdent;
+	uint32_t	bootExtLocation;
+	uint32_t	bootExtLength;
+	uint64_t	loadAddress;
+	uint64_t	startAddress;
+	timestamp	descCreationDateAndTime;
+	uint16_t	flags;
+	uint8_t		reserved2[32];
+	uint8_t		bootUse[1906];
+} __attribute__ ((packed));
+
+/* Flags (ECMA 167r3 2/9.4.12) */
+#define BOOT_FLAGS_ERASE		0x01
+
+/* Extent Descriptor (ECMA 167r3 3/7.1) */
+typedef struct
+{
+	uint32_t	extLength;
+	uint32_t	extLocation;
+} __attribute__ ((packed)) extent_ad;
+
+/* Descriptor Tag (ECMA 167r3 3/7.2) */
+typedef struct
+{
+	uint16_t	tagIdent;
+	uint16_t	descVersion;
+	uint8_t		tagChecksum;
+	uint8_t		reserved;
+	uint16_t	tagSerialNum;
+	uint16_t	descCRC;
+	uint16_t	descCRCLength;
+	uint32_t	tagLocation;
+} __attribute__ ((packed)) tag;
+
+/* Tag Identifier (ECMA 167r3 3/7.2.1) */
+#define TAG_IDENT_PVD			0x0001
+#define TAG_IDENT_AVDP			0x0002
+#define TAG_IDENT_VDP			0x0003
+#define TAG_IDENT_IUVD			0x0004
+#define TAG_IDENT_PD			0x0005
+#define TAG_IDENT_LVD			0x0006
+#define TAG_IDENT_USD			0x0007
+#define TAG_IDENT_TD			0x0008
+#define TAG_IDENT_LVID			0x0009
+
+/* NSR Descriptor (ECMA 167r3 3/9.1) */
+struct NSRDesc
+{
+	uint8_t		structType;
+	uint8_t		stdIdent[VSD_STD_ID_LEN];
+	uint8_t		structVersion;
+	uint8_t		reserved;
+	uint8_t		structData[2040];
+} __attribute__ ((packed));
+	
+/* Primary Volume Descriptor (ECMA 167r3 3/10.1) */
+struct primaryVolDesc
+{
+	tag		descTag;
+	uint32_t	volDescSeqNum;
+	uint32_t	primaryVolDescNum;
+	dstring		volIdent[32];
+	uint16_t	volSeqNum;
+	uint16_t	maxVolSeqNum;
+	uint16_t	interchangeLvl;
+	uint16_t	maxInterchangeLvl;
+	uint32_t	charSetList;
+	uint32_t	maxCharSetList;
+	dstring		volSetIdent[128];
+	charspec	descCharSet;
+	charspec	explanatoryCharSet;
+	extent_ad	volAbstract;
+	extent_ad	volCopyright;
+	regid		appIdent;
+	timestamp	recordingDateAndTime;
+	regid		impIdent;
+	uint8_t		impUse[64];
+	uint32_t	predecessorVolDescSeqLocation;
+	uint16_t	flags;
+	uint8_t		reserved[22];
+} __attribute__ ((packed));
+
+/* Flags (ECMA 167r3 3/10.1.21) */
+#define PVD_FLAGS_VSID_COMMON		0x0001
+
+/* Anchor Volume Descriptor Pointer (ECMA 167r3 3/10.2) */
+struct anchorVolDescPtr
+{
+	tag		descTag;
+	extent_ad	mainVolDescSeqExt;
+	extent_ad	reserveVolDescSeqExt;
+	uint8_t	 	reserved[480];
+} __attribute__ ((packed));
+
+/* Volume Descriptor Pointer (ECMA 167r3 3/10.3) */
+struct volDescPtr
+{
+	tag		descTag;
+	uint32_t	volDescSeqNum;
+	extent_ad	nextVolDescSeqExt;
+	uint8_t		reserved[484];
+} __attribute__ ((packed));
+
+/* Implementation Use Volume Descriptor (ECMA 167r3 3/10.4) */
+struct impUseVolDesc
+{
+	tag		descTag;
+	uint32_t	volDescSeqNum;
+	regid		impIdent;
+	uint8_t		impUse[460];
+} __attribute__ ((packed));
+
+/* Partition Descriptor (ECMA 167r3 3/10.5) */
+struct partitionDesc
+{
+	tag		descTag;
+	uint32_t	volDescSeqNum;
+	uint16_t	partitionFlags;
+	uint16_t	partitionNumber;
+	regid		partitionContents;
+	uint8_t		partitionContentsUse[128];
+	uint32_t	accessType;
+	uint32_t	partitionStartingLocation;
+	uint32_t	partitionLength;
+	regid		impIdent;
+	uint8_t		impUse[128];
+	uint8_t		reserved[156];
+} __attribute__ ((packed));
+
+/* Partition Flags (ECMA 167r3 3/10.5.3) */
+#define PD_PARTITION_FLAGS_ALLOC	0x0001
+
+/* Partition Contents (ECMA 167r2 3/10.5.3) */
+#define PD_PARTITION_CONTENTS_NSR02	"+NSR02"
+
+/* Partition Contents (ECMA 167r3 3/10.5.5) */
+#define PD_PARTITION_CONTENTS_FDC01	"+FDC01"
+#define PD_PARTITION_CONTENTS_CD001	"+CD001"
+#define PD_PARTITION_CONTENTS_CDW02	"+CDW02"
+#define PD_PARTITION_CONTENTS_NSR03	"+NSR03"
+
+/* Access Type (ECMA 167r3 3/10.5.7) */
+#define PD_ACCESS_TYPE_NONE		0x00000000
+#define PD_ACCESS_TYPE_READ_ONLY	0x00000001
+#define PD_ACCESS_TYPE_WRITE_ONCE	0x00000002
+#define PD_ACCESS_TYPE_REWRITABLE	0x00000003
+#define PD_ACCESS_TYPE_OVERWRITABLE	0x00000004
+
+/* Logical Volume Descriptor (ECMA 167r3 3/10.6) */
+struct logicalVolDesc
+{
+	tag		descTag;
+	uint32_t	volDescSeqNum;
+	charspec	descCharSet;
+	dstring		logicalVolIdent[128];
+	uint32_t	logicalBlockSize;
+	regid		domainIdent;
+	uint8_t		logicalVolContentsUse[16];
+	uint32_t	mapTableLength;
+	uint32_t	numPartitionMaps;
+	regid		impIdent;
+	uint8_t		impUse[128];
+	extent_ad	integritySeqExt;
+	uint8_t		partitionMaps[0];
+} __attribute__ ((packed));
+
+/* Generic Partition Map (ECMA 167r3 3/10.7.1) */
+struct genericPartitionMap
+{
+	uint8_t		partitionMapType;
+	uint8_t		partitionMapLength;
+	uint8_t		partitionMapping[0];
+} __attribute__ ((packed));
+
+/* Partition Map Type (ECMA 167r3 3/10.7.1.1) */
+#define GP_PARTITION_MAP_TYPE_UNDEF	0x00
+#define GP_PARTIITON_MAP_TYPE_1		0x01
+#define GP_PARTITION_MAP_TYPE_2		0x02
+
+/* Type 1 Partition Map (ECMA 167r3 3/10.7.2) */
+struct genericPartitionMap1
+{
+	uint8_t		partitionMapType;
+	uint8_t		partitionMapLength;
+	uint16_t	volSeqNum;
+	uint16_t	partitionNum;
+} __attribute__ ((packed));
+
+/* Type 2 Partition Map (ECMA 167r3 3/10.7.3) */
+struct genericPartitionMap2
+{
+	uint8_t		partitionMapType;
+	uint8_t		partitionMapLength; 
+	uint8_t		partitionIdent[62];
+} __attribute__ ((packed));
+
+/* Unallocated Space Descriptor (ECMA 167r3 3/10.8) */
+struct unallocSpaceDesc
+{
+	tag		descTag;
+	uint32_t	volDescSeqNum;
+	uint32_t	numAllocDescs;
+	extent_ad	allocDescs[0];
+} __attribute__ ((packed));
+
+/* Terminating Descriptor (ECMA 167r3 3/10.9) */
+struct terminatingDesc
+{
+	tag		descTag;
+	uint8_t		reserved[496];
+} __attribute__ ((packed));
+
+/* Logical Volume Integrity Descriptor (ECMA 167r3 3/10.10) */
+struct logicalVolIntegrityDesc
+{
+	tag		descTag;
+	timestamp	recordingDateAndTime;
+	uint32_t	integrityType;
+	extent_ad	nextIntegrityExt;
+	uint8_t		logicalVolContentsUse[32];
+	uint32_t	numOfPartitions;
+	uint32_t	lengthOfImpUse;
+	uint32_t	freeSpaceTable[0];
+	uint32_t	sizeTable[0];
+	uint8_t		impUse[0];
+} __attribute__ ((packed));
+
+/* Integrity Type (ECMA 167r3 3/10.10.3) */
+#define LVID_INTEGRITY_TYPE_OPEN	0x00000000
+#define LVID_INTEGRITY_TYPE_CLOSE	0x00000001
+
+/* Recorded Address (ECMA 167r3 4/7.1) */
+typedef struct 
+{
+	uint32_t	logicalBlockNum;
+	uint16_t	partitionReferenceNum;
+} __attribute__ ((packed)) lb_addr;
+
+/* Short Allocation Descriptor (ECMA 167r3 4/14.14.1) */
+typedef struct
+{
+        uint32_t	extLength;
+        uint32_t	extPosition;
+} __attribute__ ((packed)) short_ad;
+
+/* Long Allocation Descriptor (ECMA 167r3 4/14.14.2) */
+typedef struct
+{
+	uint32_t	extLength;
+	lb_addr		extLocation;
+	uint8_t		impUse[6];
+} __attribute__ ((packed)) long_ad;
+
+/* Extended Allocation Descriptor (ECMA 167r3 4/14.14.3) */
+typedef struct
+{
+	uint32_t	extLength;
+	uint32_t	recordedLength;
+	uint32_t	informationLength;
+	lb_addr		extLocation;
+} __attribute__ ((packed)) ext_ad;
+
+/* Descriptor Tag (ECMA 167r3 4/7.2 - See 3/7.2) */
+
+/* Tag Identifier (ECMA 167r3 4/7.2.1) */
+#define TAG_IDENT_FSD			0x0100
+#define TAG_IDENT_FID			0x0101
+#define TAG_IDENT_AED			0x0102
+#define TAG_IDENT_IE			0x0103
+#define TAG_IDENT_TE			0x0104
+#define TAG_IDENT_FE			0x0105
+#define TAG_IDENT_EAHD			0x0106
+#define TAG_IDENT_USE			0x0107
+#define TAG_IDENT_SBD			0x0108
+#define TAG_IDENT_PIE			0x0109
+#define TAG_IDENT_EFE			0x010A
+
+/* File Set Descriptor (ECMA 167r3 4/14.1) */
+struct fileSetDesc
+{
+	tag		descTag;
+	timestamp	recordingDateAndTime;
+	uint16_t	interchangeLvl;
+	uint16_t	maxInterchangeLvl;
+	uint32_t	charSetList;
+	uint32_t	maxCharSetList;
+	uint32_t	fileSetNum;
+	uint32_t	fileSetDescNum;
+	charspec	logicalVolIdentCharSet;
+	dstring		logicalVolIdent[128];
+	charspec	fileSetCharSet;
+	dstring		fileSetIdent[32];
+	dstring		copyrightFileIdent[32];
+	dstring		abstractFileIdent[32];
+	long_ad		rootDirectoryICB;
+	regid		domainIdent;
+	long_ad		nextExt;
+	long_ad		streamDirectoryICB;
+	uint8_t		reserved[32];
+} __attribute__ ((packed));
+
+/* Partition Header Descriptor (ECMA 167r3 4/14.3) */
+struct partitionHeaderDesc
+{
+	short_ad	unallocSpaceTable;
+	short_ad	unallocSpaceBitmap;
+	short_ad	partitionIntegrityTable;
+	short_ad	freedSpaceTable;
+	short_ad	freedSpaceBitmap;
+	uint8_t		reserved[88];
+} __attribute__ ((packed));
+
+/* File Identifier Descriptor (ECMA 167r3 4/14.4) */
+struct fileIdentDesc
+{
+	tag		descTag;
+	uint16_t	fileVersionNum;
+	uint8_t		fileCharacteristics;
+	uint8_t		lengthFileIdent;
+	long_ad		icb;
+	uint16_t	lengthOfImpUse;
+	uint8_t		impUse[0];
+	uint8_t		fileIdent[0];
+	uint8_t		padding[0];
+} __attribute__ ((packed));
+
+/* File Characteristics (ECMA 167r3 4/14.4.3) */
+#define FID_FILE_CHAR_HIDDEN		0x01
+#define FID_FILE_CHAR_DIRECTORY		0x02
+#define FID_FILE_CHAR_DELETED		0x04
+#define FID_FILE_CHAR_PARENT		0x08
+#define FID_FILE_CHAR_METADATA		0x10
+
+/* Allocation Ext Descriptor (ECMA 167r3 4/14.5) */
+struct allocExtDesc
+{
+	tag		descTag;
+	uint32_t	previousAllocExtLocation;
+	uint32_t	lengthAllocDescs;
+} __attribute__ ((packed));
+
+/* ICB Tag (ECMA 167r3 4/14.6) */
+typedef struct
+{
+	uint32_t	priorRecordedNumDirectEntries;
+	uint16_t	strategyType;
+	uint16_t	strategyParameter;
+	uint16_t	numEntries;
+	uint8_t		reserved;
+	uint8_t		fileType;
+	lb_addr		parentICBLocation;
+	uint16_t	flags;
+} __attribute__ ((packed)) icbtag;
+
+/* Strategy Type (ECMA 167r3 4/14.6.2) */
+#define ICBTAG_STRATEGY_TYPE_UNDEF	0x0000
+#define ICBTAG_STRATEGY_TYPE_1		0x0001
+#define ICBTAG_STRATEGY_TYPE_2		0x0002
+#define ICBTAG_STRATEGY_TYPE_3		0x0003
+#define ICBTAG_STRATEGY_TYPE_4		0x0004
+
+/* File Type (ECMA 167r3 4/14.6.6) */
+#define ICBTAG_FILE_TYPE_UNDEF		0x00
+#define ICBTAG_FILE_TYPE_USE		0x01
+#define ICBTAG_FILE_TYPE_PIE		0x02
+#define ICBTAG_FILE_TYPE_IE		0x03
+#define ICBTAG_FILE_TYPE_DIRECTORY	0x04
+#define ICBTAG_FILE_TYPE_REGULAR	0x05
+#define ICBTAG_FILE_TYPE_BLOCK		0x06
+#define ICBTAG_FILE_TYPE_CHAR		0x07
+#define ICBTAG_FILE_TYPE_EA		0x08
+#define ICBTAG_FILE_TYPE_FIFO		0x09
+#define ICBTAG_FILE_TYPE_SOCKET		0x0A
+#define ICBTAG_FILE_TYPE_TE		0x0B
+#define ICBTAG_FILE_TYPE_SYMLINK	0x0C
+#define ICBTAG_FILE_TYPE_STREAMDIR	0x0D
+
+/* Flags (ECMA 167r3 4/14.6.8) */
+#define ICBTAG_FLAG_AD_MASK		0x0007
+#define ICBTAG_FLAG_AD_SHORT		0x0000
+#define ICBTAG_FLAG_AD_LONG		0x0001
+#define ICBTAG_FLAG_AD_EXTENDED		0x0002
+#define ICBTAG_FLAG_AD_IN_ICB		0x0003
+#define ICBTAG_FLAG_SORTED		0x0008
+#define ICBTAG_FLAG_NONRELOCATABLE	0x0010
+#define ICBTAG_FLAG_ARCHIVE		0x0020
+#define ICBTAG_FLAG_SETUID		0x0040
+#define ICBTAG_FLAG_SETGID		0x0080
+#define ICBTAG_FLAG_STICKY		0x0100
+#define ICBTAG_FLAG_CONTIGUOUS		0x0200
+#define ICBTAG_FLAG_SYSTEM		0x0400
+#define ICBTAG_FLAG_TRANSFORMED		0x0800
+#define ICBTAG_FLAG_MULTIVERSIONS	0x1000
+#define ICBTAG_FLAG_STREAM		0x2000
+
+/* Indirect Entry (ECMA 167r3 4/14.7) */
+struct indirectEntry
+{
+	tag		descTag;
+	icbtag		icbTag;
+	long_ad		indirectICB;
+} __attribute__ ((packed));
+
+/* Terminal Entry (ECMA 167r3 4/14.8) */
+struct terminalEntry
+{
+	tag		descTag;
+	icbtag		icbTag;
+} __attribute__ ((packed));
+
+/* File Entry (ECMA 167r3 4/14.9) */
+struct fileEntry
+{
+	tag		descTag;
+	icbtag		icbTag;
+	uint32_t	uid;
+	uint32_t	gid;
+	uint32_t	permissions;
+	uint16_t	fileLinkCount;
+	uint8_t		recordFormat;
+	uint8_t		recordDisplayAttr;
+	uint32_t	recordLength;
+	uint64_t	informationLength;
+	uint64_t	logicalBlocksRecorded;
+	timestamp	accessTime;
+	timestamp	modificationTime;
+	timestamp	attrTime;
+	uint32_t	checkpoint;
+	long_ad		extendedAttrICB;
+	regid		impIdent;
+	uint64_t	uniqueID;
+	uint32_t	lengthExtendedAttr;
+	uint32_t	lengthAllocDescs;
+	uint8_t		extendedAttr[0];
+	uint8_t		allocDescs[0];
+} __attribute__ ((packed));
+
+/* Permissions (ECMA 167r3 4/14.9.5) */
+#define FE_PERM_O_EXEC			0x00000001U
+#define FE_PERM_O_WRITE			0x00000002U
+#define FE_PERM_O_READ			0x00000004U
+#define FE_PERM_O_CHATTR		0x00000008U
+#define FE_PERM_O_DELETE		0x00000010U
+#define FE_PERM_G_EXEC			0x00000020U
+#define FE_PERM_G_WRITE			0x00000040U
+#define FE_PERM_G_READ			0x00000080U
+#define FE_PERM_G_CHATTR		0x00000100U
+#define FE_PERM_G_DELETE		0x00000200U
+#define FE_PERM_U_EXEC			0x00000400U
+#define FE_PERM_U_WRITE			0x00000800U
+#define FE_PERM_U_READ			0x00001000U
+#define FE_PERM_U_CHATTR		0x00002000U
+#define FE_PERM_U_DELETE		0x00004000U
+
+/* Record Format (ECMA 167r3 4/14.9.7) */
+#define FE_RECORD_FMT_UNDEF		0x00
+#define FE_RECORD_FMT_FIXED_PAD		0x01
+#define FE_RECORD_FMT_FIXED		0x02
+#define FE_RECORD_FMT_VARIABLE8		0x03
+#define FE_RECORD_FMT_VARIABLE16	0x04
+#define FE_RECORD_FMT_VARIABLE16_MSB	0x05
+#define FE_RECORD_FMT_VARIABLE32	0x06
+#define FE_RECORD_FMT_PRINT		0x07
+#define FE_RECORD_FMT_LF		0x08
+#define FE_RECORD_FMT_CR		0x09
+#define FE_RECORD_FMT_CRLF		0x0A
+#define FE_RECORD_FMT_LFCR		0x0B
+
+#define Record Display Attributes (ECMA 167r3 4/14.9.8) */
+#define FE_RECORD_DISPLAY_ATTR_UNDEF	0x00
+#define FE_RECORD_DISPLAY_ATTR_1	0x01
+#define FE_RECORD_DISPLAY_ATTR_2	0x02
+#define FE_RECORD_DISPLAY_ATTR_3	0x03
+
+/* Extended Attribute Header Descriptor (ECMA 167r3 4/14.10.1) */
+struct extendedAttrHeaderDesc
+{
+	tag		descTag;
+	uint32_t	impAttrLocation;
+	uint32_t	appAttrLocation;
+} __attribute__ ((packed));
+
+/* Generic Format (ECMA 167r3 4/14.10.2) */
+struct genericFormat
+{
+	uint32_t	attrType;
+	uint8_t		attrSubtype;
+	uint8_t		reserved[3];
+	uint32_t	attrLength;
+	uint8_t		attrData[0];
+} __attribute__ ((packed));
+
+/* Character Set Information (ECMA 167r3 4/14.10.3) */
+struct charSetInfo
+{
+	uint32_t	attrType;
+	uint8_t		attrSubtype;
+	uint8_t		reserved[3];
+	uint32_t	attrLength;
+	uint32_t	escapeSeqLength;
+	uint8_t		charSetType;
+	uint8_t		escapeSeq[0];
+} __attribute__ ((packed));
+
+/* Alternate Permissions (ECMA 167r3 4/14.10.4) */
+struct altPerms
+{
+	uint32_t	attrType;
+	uint8_t		attrSubtype;
+	uint8_t		reserved[3];
+	uint32_t	attrLength;
+	uint16_t	ownerIdent;
+	uint16_t	groupIdent;
+	uint16_t	permission;
+} __attribute__ ((packed));
+
+/* File Times Extended Attribute (ECMA 167r3 4/14.10.5) */
+struct fileTimesExtAttr
+{
+	uint32_t	attrType;
+	uint8_t		attrSubtype;
+	uint8_t		reserved[3];
+	uint32_t	attrLength;
+	uint32_t	dataLength;
+	uint32_t	fileTimeExistence;
+	uint8_t		fileTimes;
+} __attribute__ ((packed));
+
+/* FileTimeExistence (ECMA 167r3 4/14.10.5.6) */
+#define FTE_CREATION			0x00000001
+#define FTE_DELETION			0x00000004
+#define FTE_EFFECTIVE			0x00000008
+#define FTE_BACKUP			0x00000002
+
+/* Information Times Extended Attribute (ECMA 167r3 4/14.10.6) */
+struct infoTimesExtAttr
+{
+	uint32_t	attrType;
+	uint8_t		attrSubtype;
+	uint8_t		reserved[3];
+	uint32_t	attrLength;
+	uint32_t	dataLength;
+	uint32_t	infoTimeExistence;
+	uint8_t		infoTimes[0];
+} __attribute__ ((packed));
+
+/* Device Specification (ECMA 167r3 4/14.10.7) */
+struct deviceSpec
+{
+	uint32_t	attrType;
+	uint8_t		attrSubtype;
+	uint8_t		reserved[3];
+	uint32_t	attrLength;
+	uint32_t	impUseLength;
+	uint32_t	majorDeviceIdent;
+	uint32_t	minorDeviceIdent;
+	uint8_t		impUse[0];
+} __attribute__ ((packed));
+
+/* Implementation Use Extended Attr (ECMA 167r3 4/14.10.8) */
+struct impUseExtAttr
+{
+	uint32_t	attrType;
+	uint8_t		attrSubtype;
+	uint8_t		reserved[3];
+	uint32_t	attrLength;
+	uint32_t	impUseLength;
+	regid		impIdent;
+	uint8_t		impUse[0];
+} __attribute__ ((packed));
+
+/* Application Use Extended Attribute (ECMA 167r3 4/14.10.9) */
+struct appUseExtAttr
+{
+	uint32_t	attrType;
+	uint8_t		attrSubtype;
+	uint8_t		reserved[3];
+	uint32_t	attrLength;
+	uint32_t	appUseLength;
+	regid		appIdent;
+	uint8_t		appUse[0];
+} __attribute__ ((packed));
+
+#define EXTATTR_CHAR_SET		1
+#define EXTATTR_ALT_PERMS		3
+#define EXTATTR_FILE_TIMES		5
+#define EXTATTR_INFO_TIMES		6
+#define EXTATTR_DEV_SPEC		12
+#define EXTATTR_IMP_USE			2048
+#define EXTATTR_APP_USE			65536
+
+
+/* Unallocated Space Entry (ECMA 167r3 4/14.11) */
+struct unallocSpaceEntry
+{
+	tag		descTag;
+	icbtag		icbTag;
+	uint32_t	lengthAllocDescs;
+	uint8_t		allocDescs[0];
+} __attribute__ ((packed));
+
+/* Space Bitmap Descriptor (ECMA 167r3 4/14.12) */
+struct spaceBitmapDesc
+{
+	tag		descTag;
+	uint32_t	numOfBits;
+	uint32_t	numOfBytes;
+	uint8_t		bitmap[0];
+} __attribute__ ((packed));
+
+/* Partition Integrity Entry (ECMA 167r3 4/14.13) */
+struct partitionIntegrityEntry
+{
+	tag		descTag;
+	icbtag		icbTag;
+	timestamp	recordingDateAndTime;
+	uint8_t		integrityType;
+	uint8_t		reserved[175];
+	regid		impIdent;
+	uint8_t		impUse[256];
+} __attribute__ ((packed));
+
+/* Short Allocation Descriptor (ECMA 167r3 4/14.14.1) */
+
+/* Extent Length (ECMA 167r3 4/14.14.1.1) */
+#define EXT_RECORDED_ALLOCATED		0x00000000
+#define EXT_NOT_RECORDED_ALLOCATED	0x40000000
+#define EXT_NOT_RECORDED_NOT_ALLOCATED	0x80000000
+#define EXT_NEXT_EXTENT_ALLOCDECS	0xC0000000
+
+/* Long Allocation Descriptor (ECMA 167r3 4/14.14.2) */
+
+/* Extended Allocation Descriptor (ECMA 167r3 4/14.14.3) */
+
+/* Logical Volume Header Descriptor (ECMA 167r3 4/14.15) */
+struct logicalVolHeaderDesc
+{
+	uint64_t	uniqueID;
+	uint8_t		reserved[24];
+} __attribute__ ((packed));
+
+/* Path Component (ECMA 167r3 4/14.16.1) */
+struct pathComponent
+{
+	uint8_t		componentType;
+	uint8_t		lengthComponentIdent;
+	uint16_t	componentFileVersionNum;
+	dstring		componentIdent[0];
+} __attribute__ ((packed));
+
+/* File Entry (ECMA 167r3 4/14.17) */
+struct extendedFileEntry
+{
+	tag		descTag;
+	icbtag		icbTag;
+	uint32_t	uid;
+	uint32_t	gid;
+	uint32_t	permissions;
+	uint16_t	fileLinkCount;
+	uint8_t		recordFormat;
+	uint8_t		recordDisplayAttr;
+	uint32_t	recordLength;
+	uint64_t	informationLength;
+	uint64_t	objectSize;
+	uint64_t	logicalBlocksRecorded;
+	timestamp	accessTime;
+	timestamp	modificationTime;
+	timestamp	createTime;
+	timestamp	attrTime;
+	uint32_t	checkpoint;
+	uint32_t	reserved;
+	long_ad		extendedAttrICB;
+	long_ad		streamDirectoryICB;
+	regid		impIdent;
+	uint64_t	uniqueID;
+	uint32_t	lengthExtendedAttr;
+	uint32_t	lengthAllocDescs;
+	uint8_t		extendedAttr[0];
+	uint8_t		allocDescs[0];
+} __attribute__ ((packed));
+
+#endif /* _ECMA_167_H */
diff --git a/fs/udf/file.c b/fs/udf/file.c
new file mode 100644
index 00000000000000..1cb047724b0bdf
--- /dev/null
+++ b/fs/udf/file.c
@@ -0,0 +1,375 @@
+/*
+ * file.c
+ *
+ * PURPOSE
+ *  File handling routines for the OSTA-UDF(tm) filesystem.
+ *
+ * CONTACTS
+ *  E-mail regarding any portion of the Linux UDF file system should be
+ *  directed to the development team mailing list (run by majordomo):
+ *    linux_udf@hpesjro.fc.hp.com
+ *
+ * COPYRIGHT
+ *  This file is distributed under the terms of the GNU General Public
+ *  License (GPL). Copies of the GPL can be obtained from:
+ *    ftp://prep.ai.mit.edu/pub/gnu/GPL
+ *  Each contributing author retains all rights to their own work.
+ *
+ *  (C) 1998-1999 Dave Boynton
+ *  (C) 1998-2001 Ben Fennema
+ *  (C) 1999-2000 Stelias Computing Inc
+ *
+ * HISTORY
+ *
+ *  10/02/98 dgb  Attempt to integrate into udf.o
+ *  10/07/98      Switched to using generic_readpage, etc., like isofs
+ *                And it works!
+ *  12/06/98 blf  Added udf_file_read. uses generic_file_read for all cases but
+ *                ICBTAG_FLAG_AD_IN_ICB.
+ *  04/06/99      64 bit file handling on 32 bit systems taken from ext2 file.c
+ *  05/12/99      Preliminary file write support
+ */
+
+#include "udfdecl.h"
+#include <linux/fs.h>
+#include <linux/udf_fs.h>
+#include <asm/uaccess.h>
+#include <linux/kernel.h>
+#include <linux/string.h> /* memset */
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <linux/smp_lock.h>
+
+#include "udf_i.h"
+#include "udf_sb.h"
+
+static int udf_adinicb_readpage(struct file *file, struct page * page)
+{
+	struct inode *inode = page->mapping->host;
+
+	struct buffer_head *bh;
+	int block;
+	char *kaddr;
+	int err = 0;
+
+	if (!PageLocked(page))
+		PAGE_BUG(page);
+
+	kaddr = kmap(page);
+	memset(kaddr, 0, PAGE_CACHE_SIZE);
+	block = udf_get_lb_pblock(inode->i_sb, UDF_I_LOCATION(inode), 0);
+	bh = sb_bread(inode->i_sb, block);
+	if (!bh)
+	{
+		SetPageError(page);
+		err = -EIO;
+		goto out;
+	}
+	memcpy(kaddr, bh->b_data + udf_ext0_offset(inode), inode->i_size);
+	brelse(bh);
+	flush_dcache_page(page);
+	SetPageUptodate(page);
+out:
+	kunmap(page);
+	UnlockPage(page);
+	return err;
+}
+
+static int udf_adinicb_writepage(struct page *page)
+{
+	struct inode *inode = page->mapping->host;
+
+	struct buffer_head *bh;
+	int block;
+	char *kaddr;
+	int err = 0;
+
+	if (!PageLocked(page))
+		PAGE_BUG(page);
+
+	kaddr = kmap(page);
+	block = udf_get_lb_pblock(inode->i_sb, UDF_I_LOCATION(inode), 0);
+	bh = sb_bread(inode->i_sb, block);
+	if (!bh)
+	{
+		SetPageError(page);
+		err = -EIO;
+		goto out;
+	}
+	memcpy(bh->b_data + udf_ext0_offset(inode), kaddr, inode->i_size);
+	mark_buffer_dirty(bh);
+	brelse(bh);
+	SetPageUptodate(page);
+out:
+	kunmap(page);
+	UnlockPage(page);
+	return err;
+}
+
+static int udf_adinicb_prepare_write(struct file *file, struct page *page, unsigned offset, unsigned to)
+{
+	kmap(page);
+	return 0;
+}
+
+static int udf_adinicb_commit_write(struct file *file, struct page *page, unsigned offset, unsigned to)
+{
+	struct inode *inode = page->mapping->host;
+
+	struct buffer_head *bh;
+	int block;
+	char *kaddr = page_address(page);
+	int err = 0;
+
+	block = udf_get_lb_pblock(inode->i_sb, UDF_I_LOCATION(inode), 0);
+	bh = sb_bread(inode->i_sb, block);
+	if (!bh)
+	{
+		SetPageError(page);
+		err = -EIO;
+		goto out;
+	}
+	memcpy(bh->b_data + udf_file_entry_alloc_offset(inode) + offset,
+		kaddr + offset, to - offset);
+	mark_buffer_dirty(bh);
+	brelse(bh);
+	SetPageUptodate(page);
+out:
+	kunmap(page);
+	/* only one page here */
+	if (to > inode->i_size)
+		inode->i_size = to;
+	return err;
+}
+
+struct address_space_operations udf_adinicb_aops = {
+	readpage:		udf_adinicb_readpage,
+	writepage:		udf_adinicb_writepage,
+	sync_page:		block_sync_page,
+	prepare_write:		udf_adinicb_prepare_write,
+	commit_write:		udf_adinicb_commit_write,
+};
+
+static ssize_t udf_file_write(struct file * file, const char * buf,
+	size_t count, loff_t *ppos)
+{
+	ssize_t retval;
+	struct inode *inode = file->f_dentry->d_inode;
+	int err;
+	loff_t pos;
+
+	if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB)
+	{
+		if (file->f_flags & O_APPEND)
+			pos = inode->i_size;
+		else
+			pos = *ppos;
+
+		if (pos < 0 || pos + count < pos)
+			return 0;
+
+		if (inode->i_sb->s_blocksize - udf_file_entry_alloc_offset(inode) <
+			pos + count)
+		{
+			udf_expand_file_adinicb(inode, pos + count, &err);
+			if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB)
+			{
+				udf_debug("udf_expand_adinicb: err=%d\n", err);
+				return err;
+			}
+		}
+		else
+		{
+			if (pos + count > inode->i_size)
+				UDF_I_LENALLOC(inode) = pos + count;
+			else
+				UDF_I_LENALLOC(inode) = inode->i_size;
+		}
+	}
+
+	retval = generic_file_write(file, buf, count, ppos);
+
+	if (retval > 0)
+	{
+		UDF_I_UCTIME(inode) = UDF_I_UMTIME(inode) = CURRENT_UTIME;
+		mark_inode_dirty(inode);
+	}
+	return retval;
+}
+
+/*
+ * udf_ioctl
+ *
+ * PURPOSE
+ *	Issue an ioctl.
+ *
+ * DESCRIPTION
+ *	Optional - sys_ioctl() will return -ENOTTY if this routine is not
+ *	available, and the ioctl cannot be handled without filesystem help.
+ *
+ *	sys_ioctl() handles these ioctls that apply only to regular files:
+ *		FIBMAP [requires udf_block_map()], FIGETBSZ, FIONREAD
+ *	These ioctls are also handled by sys_ioctl():
+ *		FIOCLEX, FIONCLEX, FIONBIO, FIOASYNC
+ *	All other ioctls are passed to the filesystem.
+ *
+ *	Refer to sys_ioctl() in fs/ioctl.c
+ *	sys_ioctl() -> .
+ *
+ * PRE-CONDITIONS
+ *	inode			Pointer to inode that ioctl was issued on.
+ *	filp			Pointer to file that ioctl was issued on.
+ *	cmd			The ioctl command.
+ *	arg			The ioctl argument [can be interpreted as a
+ *				user-space pointer if desired].
+ *
+ * POST-CONDITIONS
+ *	<return>		Success (>=0) or an error code (<=0) that
+ *				sys_ioctl() will return.
+ *
+ * HISTORY
+ *	July 1, 1997 - Andrew E. Mileski
+ *	Written, tested, and released.
+ */
+int udf_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
+	unsigned long arg)
+{
+	int result = -EINVAL;
+	struct buffer_head *bh = NULL;
+	long_ad eaicb;
+	uint8_t *ea = NULL;
+
+	if ( permission(inode, MAY_READ) != 0 )
+	{
+		udf_debug("no permission to access inode %lu\n",
+						inode->i_ino);
+		return -EPERM;
+	}
+
+	if ( !arg )
+	{
+		udf_debug("invalid argument to udf_ioctl\n");
+		return -EINVAL;
+	}
+
+	/* first, do ioctls that don't need to udf_read */
+	switch (cmd)
+	{
+		case UDF_GETVOLIDENT:
+			return copy_to_user((char *)arg,
+				UDF_SB_VOLIDENT(inode->i_sb), 32) ? -EFAULT : 0;
+		case UDF_RELOCATE_BLOCKS:
+		{
+			long old, new;
+
+			if (!capable(CAP_SYS_ADMIN)) return -EACCES;
+			if (get_user(old, (long *)arg)) return -EFAULT;
+			if ((result = udf_relocate_blocks(inode->i_sb,
+					old, &new)) == 0)
+				result = put_user(new, (long *)arg);
+
+			return result;
+		}
+	}
+
+	/* ok, we need to read the inode */
+	bh = udf_tread(inode->i_sb,
+		udf_get_lb_pblock(inode->i_sb, UDF_I_LOCATION(inode), 0));
+
+	if (!bh)
+	{
+		udf_debug("bread failed (inode=%ld)\n", inode->i_ino);
+		return -EIO;
+	}
+
+	if (UDF_I_EXTENDED_FE(inode) == 0)
+	{
+		struct fileEntry *fe;
+
+		fe = (struct fileEntry *)bh->b_data;
+		eaicb = lela_to_cpu(fe->extendedAttrICB);
+		if (UDF_I_LENEATTR(inode))
+			ea = fe->extendedAttr;
+	}
+	else
+	{
+		struct extendedFileEntry *efe;
+
+		efe = (struct extendedFileEntry *)bh->b_data;
+		eaicb = lela_to_cpu(efe->extendedAttrICB);
+		if (UDF_I_LENEATTR(inode))
+			ea = efe->extendedAttr;
+	}
+
+	switch (cmd) 
+	{
+		case UDF_GETEASIZE:
+			result = put_user(UDF_I_LENEATTR(inode), (int *)arg);
+			break;
+
+		case UDF_GETEABLOCK:
+			result = copy_to_user((char *)arg, ea,
+				UDF_I_LENEATTR(inode)) ? -EFAULT : 0;
+			break;
+	}
+
+	udf_release_data(bh);
+	return result;
+}
+
+/*
+ * udf_release_file
+ *
+ * PURPOSE
+ *  Called when all references to the file are closed
+ *
+ * DESCRIPTION
+ *  Discard prealloced blocks
+ *
+ * HISTORY
+ *
+ */
+static int udf_release_file(struct inode * inode, struct file * filp)
+{
+	if (filp->f_mode & FMODE_WRITE)
+	{
+		lock_kernel();
+		udf_discard_prealloc(inode);
+		unlock_kernel();
+	}
+	return 0;
+}
+
+/*
+ * udf_open_file
+ *
+ * PURPOSE
+ *  Called when an inode is about to be open.
+ *
+ * DESCRIPTION
+ *  Use this to disallow opening RW large files on 32 bit systems.
+ *  On 64 bit systems we force on O_LARGEFILE in sys_open.
+ *
+ * HISTORY
+ *
+ */
+static int udf_open_file(struct inode * inode, struct file * filp)
+{
+	if ((inode->i_size & 0xFFFFFFFF80000000ULL) && !(filp->f_flags & O_LARGEFILE))
+		return -EFBIG;
+	return 0;
+}
+
+struct file_operations udf_file_operations = {
+	read:			generic_file_read,
+	ioctl:			udf_ioctl,
+	open:			udf_open_file,
+	mmap:			generic_file_mmap,
+	write:			udf_file_write,
+	release:		udf_release_file,
+	fsync:			udf_fsync_file,
+};
+
+struct inode_operations udf_file_inode_operations = {
+	truncate:		udf_truncate,
+};
diff --git a/fs/udf/fsync.c b/fs/udf/fsync.c
new file mode 100644
index 00000000000000..00d4c207f4fe8d
--- /dev/null
+++ b/fs/udf/fsync.c
@@ -0,0 +1,56 @@
+/*
+ * fsync.c
+ *
+ * PURPOSE
+ *  Fsync handling routines for the OSTA-UDF(tm) filesystem.
+ *
+ * CONTACTS
+ *  E-mail regarding any portion of the Linux UDF file system should be
+ *  directed to the development team mailing list (run by majordomo):
+ *      linux_udf@hpesjro.fc.hp.com
+ *
+ * COPYRIGHT
+ *  This file is distributed under the terms of the GNU General Public
+ *  License (GPL). Copies of the GPL can be obtained from:
+ *      ftp://prep.ai.mit.edu/pub/gnu/GPL
+ *  Each contributing author retains all rights to their own work.
+ *
+ *  (C) 1999-2001 Ben Fennema
+ *  (C) 1999-2000 Stelias Computing Inc
+ *
+ * HISTORY
+ *
+ *  05/22/99 blf  Created.
+ */
+
+#include "udfdecl.h"
+
+#include <linux/fs.h>
+#include <linux/locks.h>
+#include <linux/smp_lock.h>
+
+/*
+ *	File may be NULL when we are called. Perhaps we shouldn't
+ *	even pass file to fsync ?
+ */
+
+int udf_fsync_file(struct file * file, struct dentry *dentry, int datasync)
+{
+	struct inode *inode = dentry->d_inode;
+	return udf_fsync_inode(inode, datasync);
+}
+
+int udf_fsync_inode(struct inode *inode, int datasync)
+{
+	int err;
+
+	err = fsync_inode_buffers(inode);
+	err |= fsync_inode_data_buffers(inode);
+	if (!(inode->i_state & I_DIRTY))
+		return err;
+	if (datasync && !(inode->i_state & I_DIRTY_DATASYNC))
+		return err;
+
+	err |= udf_sync_inode (inode);
+	return err ? -EIO : 0;
+}
diff --git a/fs/udf/ialloc.c b/fs/udf/ialloc.c
new file mode 100644
index 00000000000000..a533774e96f4ac
--- /dev/null
+++ b/fs/udf/ialloc.c
@@ -0,0 +1,167 @@
+/*
+ * ialloc.c
+ *
+ * PURPOSE
+ *	Inode allocation handling routines for the OSTA-UDF(tm) filesystem.
+ *
+ * CONTACTS
+ *	E-mail regarding any portion of the Linux UDF file system should be
+ *	directed to the development team mailing list (run by majordomo):
+ *		linux_udf@hpesjro.fc.hp.com
+ *
+ * COPYRIGHT
+ *	This file is distributed under the terms of the GNU General Public
+ *	License (GPL). Copies of the GPL can be obtained from:
+ *		ftp://prep.ai.mit.edu/pub/gnu/GPL
+ *	Each contributing author retains all rights to their own work.
+ *
+ *  (C) 1998-2001 Ben Fennema
+ *
+ * HISTORY
+ *
+ *  02/24/99 blf  Created.
+ *
+ */
+
+#include "udfdecl.h"
+#include <linux/fs.h>
+#include <linux/locks.h>
+#include <linux/quotaops.h>
+#include <linux/udf_fs.h>
+
+#include "udf_i.h"
+#include "udf_sb.h"
+
+void udf_free_inode(struct inode * inode)
+{
+	struct super_block * sb = inode->i_sb;
+	int is_directory;
+	unsigned long ino;
+
+	ino = inode->i_ino;
+
+	/*
+	 * Note: we must free any quota before locking the superblock,
+	 * as writing the quota to disk may need the lock as well.
+	 */
+	DQUOT_FREE_INODE(inode);
+	DQUOT_DROP(inode);
+
+	lock_super(sb);
+
+	is_directory = S_ISDIR(inode->i_mode);
+
+	clear_inode(inode);
+
+	if (UDF_SB_LVIDBH(sb))
+	{
+		if (is_directory)
+			UDF_SB_LVIDIU(sb)->numDirs =
+				cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numDirs) - 1);
+		else
+			UDF_SB_LVIDIU(sb)->numFiles =
+				cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numFiles) - 1);
+		
+		mark_buffer_dirty(UDF_SB_LVIDBH(sb));
+	}
+	unlock_super(sb);
+
+	udf_free_blocks(sb, NULL, UDF_I_LOCATION(inode), 0, 1);
+}
+
+struct inode * udf_new_inode (struct inode *dir, int mode, int * err)
+{
+	struct super_block *sb;
+	struct inode * inode;
+	int block;
+	uint32_t start = UDF_I_LOCATION(dir).logicalBlockNum;
+
+	sb = dir->i_sb;
+	inode = new_inode(sb);
+
+	if (!inode)
+	{
+		*err = -ENOMEM;
+		return NULL;
+	}
+	*err = -ENOSPC;
+
+	block = udf_new_block(dir->i_sb, NULL, UDF_I_LOCATION(dir).partitionReferenceNum,
+		start, err);
+	if (*err)
+	{
+		iput(inode);
+		return NULL;
+	}
+	lock_super(sb);
+
+	if (UDF_SB_LVIDBH(sb))
+	{
+		struct logicalVolHeaderDesc *lvhd;
+		uint64_t uniqueID;
+		lvhd = (struct logicalVolHeaderDesc *)(UDF_SB_LVID(sb)->logicalVolContentsUse);
+		if (S_ISDIR(mode))
+			UDF_SB_LVIDIU(sb)->numDirs =
+				cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numDirs) + 1);
+		else
+			UDF_SB_LVIDIU(sb)->numFiles =
+				cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numFiles) + 1);
+		UDF_I_UNIQUE(inode) = uniqueID = le64_to_cpu(lvhd->uniqueID);
+		if (!(++uniqueID & 0x00000000FFFFFFFFUL))
+			uniqueID += 16;
+		lvhd->uniqueID = cpu_to_le64(uniqueID);
+		mark_buffer_dirty(UDF_SB_LVIDBH(sb));
+	}
+	inode->i_mode = mode;
+	inode->i_uid = current->fsuid;
+	if (dir->i_mode & S_ISGID)
+	{
+		inode->i_gid = dir->i_gid;
+		if (S_ISDIR(mode))
+			mode |= S_ISGID;
+	}
+	else
+		inode->i_gid = current->fsgid;
+
+	UDF_I_LOCATION(inode).logicalBlockNum = block;
+	UDF_I_LOCATION(inode).partitionReferenceNum = UDF_I_LOCATION(dir).partitionReferenceNum;
+	inode->i_ino = udf_get_lb_pblock(sb, UDF_I_LOCATION(inode), 0);
+	inode->i_blksize = PAGE_SIZE;
+	inode->i_blocks = 0;
+	UDF_I_LENEATTR(inode) = 0;
+	UDF_I_LENALLOC(inode) = 0;
+	if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_EXTENDED_FE))
+	{
+		UDF_I_EXTENDED_FE(inode) = 1;
+		UDF_UPDATE_UDFREV(inode->i_sb, UDF_VERS_USE_EXTENDED_FE);
+	}
+	else
+		UDF_I_EXTENDED_FE(inode) = 0;
+	if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_AD_IN_ICB))
+		UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_IN_ICB;
+	else if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD))
+		UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_SHORT;
+	else
+		UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_LONG;
+	inode->i_mtime = inode->i_atime = inode->i_ctime =
+		UDF_I_CRTIME(inode) = CURRENT_TIME;
+	UDF_I_UMTIME(inode) = UDF_I_UCTIME(inode) =
+		UDF_I_UCRTIME(inode) = CURRENT_UTIME;
+	UDF_I_NEW_INODE(inode) = 1;
+	insert_inode_hash(inode);
+	mark_inode_dirty(inode);
+
+	unlock_super(sb);
+	if (DQUOT_ALLOC_INODE(inode))
+	{
+		DQUOT_DROP(inode);
+		inode->i_flags |= S_NOQUOTA;
+		inode->i_nlink = 0;
+		iput(inode);
+		*err = -EDQUOT;
+		return NULL;
+	}
+
+	*err = 0;
+	return inode;
+}
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
new file mode 100644
index 00000000000000..72cdc308c8981d
--- /dev/null
+++ b/fs/udf/inode.c
@@ -0,0 +1,2217 @@
+/*
+ * inode.c
+ *
+ * PURPOSE
+ *  Inode handling routines for the OSTA-UDF(tm) filesystem.
+ *
+ * CONTACTS
+ *  E-mail regarding any portion of the Linux UDF file system should be
+ *  directed to the development team mailing list (run by majordomo):
+ *    linux_udf@hpesjro.fc.hp.com
+ *
+ * COPYRIGHT
+ *  This file is distributed under the terms of the GNU General Public
+ *  License (GPL). Copies of the GPL can be obtained from:
+ *    ftp://prep.ai.mit.edu/pub/gnu/GPL
+ *  Each contributing author retains all rights to their own work.
+ *
+ *  (C) 1998 Dave Boynton
+ *  (C) 1998-2001 Ben Fennema
+ *  (C) 1999-2000 Stelias Computing Inc
+ *
+ * HISTORY
+ *
+ *  10/04/98 dgb  Added rudimentary directory functions
+ *  10/07/98      Fully working udf_block_map! It works!
+ *  11/25/98      bmap altered to better support extents
+ *  12/06/98 blf  partition support in udf_iget, udf_block_map and udf_read_inode
+ *  12/12/98      rewrote udf_block_map to handle next extents and descs across
+ *                block boundaries (which is not actually allowed)
+ *  12/20/98      added support for strategy 4096
+ *  03/07/99      rewrote udf_block_map (again)
+ *                New funcs, inode_bmap, udf_next_aext
+ *  04/19/99      Support for writing device EA's for major/minor #
+ */
+
+#include "udfdecl.h"
+#include <linux/locks.h>
+#include <linux/mm.h>
+#include <linux/smp_lock.h>
+#include <linux/module.h>
+
+#include "udf_i.h"
+#include "udf_sb.h"
+
+MODULE_AUTHOR("Ben Fennema");
+MODULE_DESCRIPTION("Universal Disk Format Filesystem");
+MODULE_LICENSE("GPL");
+
+#define EXTENT_MERGE_SIZE 5
+
+static mode_t udf_convert_permissions(struct fileEntry *);
+static int udf_update_inode(struct inode *, int);
+static void udf_fill_inode(struct inode *, struct buffer_head *);
+static struct buffer_head *inode_getblk(struct inode *, long, int *, long *, int *);
+static void udf_split_extents(struct inode *, int *, int, int,
+	long_ad [EXTENT_MERGE_SIZE], int *);
+static void udf_prealloc_extents(struct inode *, int, int,
+	 long_ad [EXTENT_MERGE_SIZE], int *);
+static void udf_merge_extents(struct inode *,
+	 long_ad [EXTENT_MERGE_SIZE], int *);
+static void udf_update_extents(struct inode *,
+	long_ad [EXTENT_MERGE_SIZE], int, int,
+	lb_addr, uint32_t, struct buffer_head **);
+static int udf_get_block(struct inode *, long, struct buffer_head *, int);
+
+/*
+ * udf_put_inode
+ *
+ * PURPOSE
+ *
+ * DESCRIPTION
+ *	This routine is called whenever the kernel no longer needs the inode.
+ *
+ * HISTORY
+ *	July 1, 1997 - Andrew E. Mileski
+ *	Written, tested, and released.
+ *
+ *  Called at each iput()
+ */
+void udf_put_inode(struct inode * inode)
+{
+	if (!(inode->i_sb->s_flags & MS_RDONLY))
+	{
+		lock_kernel();
+		udf_discard_prealloc(inode);
+		unlock_kernel();
+	}
+}
+
+/*
+ * udf_delete_inode
+ *
+ * PURPOSE
+ *	Clean-up before the specified inode is destroyed.
+ *
+ * DESCRIPTION
+ *	This routine is called when the kernel destroys an inode structure
+ *	ie. when iput() finds i_count == 0.
+ *
+ * HISTORY
+ *	July 1, 1997 - Andrew E. Mileski
+ *	Written, tested, and released.
+ *
+ *  Called at the last iput() if i_nlink is zero.
+ */
+void udf_delete_inode(struct inode * inode)
+{
+	lock_kernel();
+
+	if (is_bad_inode(inode))
+		goto no_delete;
+
+	inode->i_size = 0;
+	udf_truncate(inode);
+	udf_update_inode(inode, IS_SYNC(inode));
+	udf_free_inode(inode);
+
+	unlock_kernel();
+	return;
+no_delete:
+	unlock_kernel();
+	clear_inode(inode);
+}
+
+void udf_discard_prealloc(struct inode * inode)
+{
+	if (inode->i_size && inode->i_size != UDF_I_LENEXTENTS(inode) &&
+		UDF_I_ALLOCTYPE(inode) != ICBTAG_FLAG_AD_IN_ICB)
+	{
+		udf_truncate_extents(inode);
+	}
+}
+
+static int udf_writepage(struct page *page)
+{
+	return block_write_full_page(page, udf_get_block);
+}
+
+static int udf_readpage(struct file *file, struct page *page)
+{
+	return block_read_full_page(page, udf_get_block);
+}
+
+static int udf_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)
+{
+	return block_prepare_write(page, from, to, udf_get_block);
+}
+
+static int udf_bmap(struct address_space *mapping, long block)
+{
+	return generic_block_bmap(mapping,block,udf_get_block);
+}
+
+struct address_space_operations udf_aops = {
+	readpage:		udf_readpage,
+	writepage:		udf_writepage,
+	sync_page:		block_sync_page,
+	prepare_write:		udf_prepare_write,
+	commit_write:		generic_commit_write,
+	bmap:			udf_bmap,
+};
+
+void udf_expand_file_adinicb(struct inode * inode, int newsize, int * err)
+{
+	struct buffer_head *bh = NULL;
+	struct page *page;
+	char *kaddr;
+	int block;
+
+	/* from now on we have normal address_space methods */
+	inode->i_data.a_ops = &udf_aops;
+
+	if (!UDF_I_LENALLOC(inode))
+	{
+		if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD))
+			UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_SHORT;
+		else
+			UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_LONG;
+		mark_inode_dirty(inode);
+		return;
+	}
+
+	block = udf_get_lb_pblock(inode->i_sb, UDF_I_LOCATION(inode), 0);
+	bh = udf_tread(inode->i_sb, block);
+	if (!bh)
+		return;
+	page = grab_cache_page(inode->i_mapping, 0);
+	if (!PageLocked(page))
+		PAGE_BUG(page);
+	if (!Page_Uptodate(page))
+	{
+		kaddr = kmap(page);
+		memset(kaddr + UDF_I_LENALLOC(inode), 0x00,
+			PAGE_CACHE_SIZE - UDF_I_LENALLOC(inode));
+		memcpy(kaddr, bh->b_data + udf_file_entry_alloc_offset(inode),
+			UDF_I_LENALLOC(inode));
+		flush_dcache_page(page);
+		SetPageUptodate(page);
+		kunmap(page);
+	}
+	memset(bh->b_data + udf_file_entry_alloc_offset(inode),
+		0, UDF_I_LENALLOC(inode));
+	UDF_I_LENALLOC(inode) = 0;
+	if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD))
+		UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_SHORT;
+	else
+		UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_LONG;
+	mark_buffer_dirty_inode(bh, inode);
+	udf_release_data(bh);
+
+	inode->i_data.a_ops->writepage(page);
+	page_cache_release(page);
+
+	mark_inode_dirty(inode);
+	inode->i_version ++;
+}
+
+struct buffer_head * udf_expand_dir_adinicb(struct inode *inode, int *block, int *err)
+{
+	int newblock;
+	struct buffer_head *sbh = NULL, *dbh = NULL;
+	lb_addr bloc, eloc;
+	uint32_t elen, extoffset;
+
+	struct udf_fileident_bh sfibh, dfibh;
+	loff_t f_pos = udf_ext0_offset(inode) >> 2;
+	int size = (udf_ext0_offset(inode) + inode->i_size) >> 2;
+	struct fileIdentDesc cfi, *sfi, *dfi;
+
+	if (!inode->i_size)
+	{
+		if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD))
+			UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_SHORT;
+		else
+			UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_LONG;
+		mark_inode_dirty(inode);
+		return NULL;
+	}
+
+	/* alloc block, and copy data to it */
+	*block = udf_new_block(inode->i_sb, inode,
+		UDF_I_LOCATION(inode).partitionReferenceNum,
+		UDF_I_LOCATION(inode).logicalBlockNum, err);
+
+	if (!(*block))
+		return NULL;
+	newblock = udf_get_pblock(inode->i_sb, *block,
+		UDF_I_LOCATION(inode).partitionReferenceNum, 0);
+	if (!newblock)
+		return NULL;
+	sbh = udf_tread(inode->i_sb, inode->i_ino);
+	if (!sbh)
+		return NULL;
+	dbh = udf_tgetblk(inode->i_sb, newblock);
+	if (!dbh)
+		return NULL;
+	lock_buffer(dbh);
+	memset(dbh->b_data, 0x00, inode->i_sb->s_blocksize);
+	mark_buffer_uptodate(dbh, 1);
+	unlock_buffer(dbh);
+	mark_buffer_dirty_inode(dbh, inode);
+
+	sfibh.soffset = sfibh.eoffset = (f_pos & ((inode->i_sb->s_blocksize - 1) >> 2)) << 2;
+	sfibh.sbh = sfibh.ebh = sbh;
+	dfibh.soffset = dfibh.eoffset = 0;
+	dfibh.sbh = dfibh.ebh = dbh;
+	while ( (f_pos < size) )
+	{
+		sfi = udf_fileident_read(inode, &f_pos, &sfibh, &cfi, NULL, NULL, NULL, NULL, NULL, NULL);
+		if (!sfi)
+		{
+			udf_release_data(sbh);
+			udf_release_data(dbh);
+			return NULL;
+		}
+		sfi->descTag.tagLocation = *block;
+		dfibh.soffset = dfibh.eoffset;
+		dfibh.eoffset += (sfibh.eoffset - sfibh.soffset);
+		dfi = (struct fileIdentDesc *)(dbh->b_data + dfibh.soffset);
+		if (udf_write_fi(inode, sfi, dfi, &dfibh, sfi->impUse,
+			sfi->fileIdent + sfi->lengthOfImpUse))
+		{
+			udf_release_data(sbh);
+			udf_release_data(dbh);
+			return NULL;
+		}
+	}
+	mark_buffer_dirty_inode(dbh, inode);
+
+	memset(sbh->b_data + udf_file_entry_alloc_offset(inode),
+		0, UDF_I_LENALLOC(inode));
+
+	UDF_I_LENALLOC(inode) = 0;
+	if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD))
+		UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_SHORT;
+	else
+		UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_LONG;
+	bloc = UDF_I_LOCATION(inode);
+	eloc.logicalBlockNum = *block;
+	eloc.partitionReferenceNum = UDF_I_LOCATION(inode).partitionReferenceNum;
+	elen = inode->i_size;
+	UDF_I_LENEXTENTS(inode) = elen;
+	extoffset = udf_file_entry_alloc_offset(inode);
+	udf_add_aext(inode, &bloc, &extoffset, eloc, elen, &sbh, 0);
+	/* UniqueID stuff */
+
+	mark_buffer_dirty(sbh);
+	udf_release_data(sbh);
+	mark_inode_dirty(inode);
+	inode->i_version ++;
+	return dbh;
+}
+
+static int udf_get_block(struct inode *inode, long block, struct buffer_head *bh_result, int create)
+{
+	int err, new;
+	struct buffer_head *bh;
+	unsigned long phys;
+
+	if (!create)
+	{
+		phys = udf_block_map(inode, block);
+		if (phys)
+		{
+			bh_result->b_dev = inode->i_dev;
+			bh_result->b_blocknr = phys;
+			bh_result->b_state |= (1UL << BH_Mapped);
+		}
+		return 0;
+	}
+
+	err = -EIO;
+	new = 0;
+	bh = NULL;
+
+	lock_kernel();
+
+	if (block < 0)
+		goto abort_negative;
+
+	if (block == UDF_I_NEXT_ALLOC_BLOCK(inode) + 1)
+	{
+		UDF_I_NEXT_ALLOC_BLOCK(inode) ++;
+		UDF_I_NEXT_ALLOC_GOAL(inode) ++;
+	}
+
+	err = 0;
+
+	bh = inode_getblk(inode, block, &err, &phys, &new);
+	if (bh)
+		BUG();
+	if (err)
+		goto abort;
+	if (!phys)
+		BUG();
+
+	bh_result->b_dev = inode->i_dev;
+	bh_result->b_blocknr = phys;
+	bh_result->b_state |= (1UL << BH_Mapped);
+	if (new)
+		bh_result->b_state |= (1UL << BH_New);
+abort:
+	unlock_kernel();
+	return err;
+
+abort_negative:
+	udf_warning(inode->i_sb, "udf_get_block", "block < 0");
+	goto abort;
+}
+
+struct buffer_head * udf_getblk(struct inode * inode, long block,
+	int create, int * err)
+{
+	struct buffer_head dummy;
+
+	dummy.b_state = 0;
+	dummy.b_blocknr = -1000;
+	*err = udf_get_block(inode, block, &dummy, create);
+	if (!*err && buffer_mapped(&dummy))
+	{
+		struct buffer_head *bh;
+		bh = sb_getblk(inode->i_sb, dummy.b_blocknr);
+		if (buffer_new(&dummy))
+		{
+			lock_buffer(bh);
+			memset(bh->b_data, 0x00, inode->i_sb->s_blocksize);
+			mark_buffer_uptodate(bh, 1);
+			unlock_buffer(bh);
+			mark_buffer_dirty_inode(bh, inode);
+		}
+		return bh;
+	}
+	return NULL;
+}
+
+static struct buffer_head * inode_getblk(struct inode * inode, long block,
+	int *err, long *phys, int *new)
+{
+	struct buffer_head *pbh = NULL, *cbh = NULL, *nbh = NULL, *result = NULL;
+	long_ad laarr[EXTENT_MERGE_SIZE];
+	uint32_t pextoffset = 0, cextoffset = 0, nextoffset = 0;
+	int count = 0, startnum = 0, endnum = 0;
+	uint32_t elen = 0;
+	lb_addr eloc, pbloc, cbloc, nbloc;
+	int c = 1;
+	uint64_t lbcount = 0, b_off = 0;
+	uint32_t newblocknum, newblock, offset = 0;
+	int8_t etype;
+	int goal = 0, pgoal = UDF_I_LOCATION(inode).logicalBlockNum;
+	char lastblock = 0;
+
+	pextoffset = cextoffset = nextoffset = udf_file_entry_alloc_offset(inode);
+	b_off = (uint64_t)block << inode->i_sb->s_blocksize_bits;
+	pbloc = cbloc = nbloc = UDF_I_LOCATION(inode);
+
+	/* find the extent which contains the block we are looking for.
+       alternate between laarr[0] and laarr[1] for locations of the
+       current extent, and the previous extent */
+	do
+	{
+		if (pbh != cbh)
+		{
+			udf_release_data(pbh);
+			atomic_inc(&cbh->b_count);
+			pbh = cbh;
+		}
+		if (cbh != nbh)
+		{
+			udf_release_data(cbh);
+			atomic_inc(&nbh->b_count);
+			cbh = nbh;
+		}
+
+		lbcount += elen;
+
+		pbloc = cbloc;
+		cbloc = nbloc;
+
+		pextoffset = cextoffset;
+		cextoffset = nextoffset;
+
+		if ((etype = udf_next_aext(inode, &nbloc, &nextoffset, &eloc, &elen, &nbh, 1)) == -1)
+			break;
+
+		c = !c;
+
+		laarr[c].extLength = (etype << 30) | elen;
+		laarr[c].extLocation = eloc;
+
+		if (etype != (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30))
+			pgoal = eloc.logicalBlockNum +
+				((elen + inode->i_sb->s_blocksize - 1) >>
+				inode->i_sb->s_blocksize_bits);
+
+		count ++;
+	} while (lbcount + elen <= b_off);
+
+	b_off -= lbcount;
+	offset = b_off >> inode->i_sb->s_blocksize_bits;
+
+	/* if the extent is allocated and recorded, return the block
+       if the extent is not a multiple of the blocksize, round up */
+
+	if (etype == (EXT_RECORDED_ALLOCATED >> 30))
+	{
+		if (elen & (inode->i_sb->s_blocksize - 1))
+		{
+			elen = EXT_RECORDED_ALLOCATED |
+				((elen + inode->i_sb->s_blocksize - 1) &
+				~(inode->i_sb->s_blocksize - 1));
+			etype = udf_write_aext(inode, nbloc, &cextoffset, eloc, elen, nbh, 1);
+		}
+		udf_release_data(pbh);
+		udf_release_data(cbh);
+		udf_release_data(nbh);
+		newblock = udf_get_lb_pblock(inode->i_sb, eloc, offset);
+		*phys = newblock;
+		return NULL;
+	}
+
+	if (etype == -1)
+	{
+		endnum = startnum = ((count > 1) ? 1 : count);
+		if (laarr[c].extLength & (inode->i_sb->s_blocksize - 1))
+		{
+			laarr[c].extLength =
+				(laarr[c].extLength & UDF_EXTENT_FLAG_MASK) |
+				(((laarr[c].extLength & UDF_EXTENT_LENGTH_MASK) +
+					inode->i_sb->s_blocksize - 1) &
+				~(inode->i_sb->s_blocksize - 1));
+			UDF_I_LENEXTENTS(inode) =
+				(UDF_I_LENEXTENTS(inode) + inode->i_sb->s_blocksize - 1) &
+					~(inode->i_sb->s_blocksize - 1);
+		}
+		c = !c;
+		laarr[c].extLength = EXT_NOT_RECORDED_NOT_ALLOCATED |
+			((offset + 1) << inode->i_sb->s_blocksize_bits);
+		memset(&laarr[c].extLocation, 0x00, sizeof(lb_addr));
+		count ++;
+		endnum ++;
+		lastblock = 1;
+	}
+	else
+		endnum = startnum = ((count > 2) ? 2 : count);
+
+	/* if the current extent is in position 0, swap it with the previous */
+	if (!c && count != 1)
+	{
+		laarr[2] = laarr[0];
+		laarr[0] = laarr[1];
+		laarr[1] = laarr[2];
+		c = 1;
+	}
+
+	/* if the current block is located in a extent, read the next extent */
+	if (etype != -1)
+	{
+		if ((etype = udf_next_aext(inode, &nbloc, &nextoffset, &eloc, &elen, &nbh, 0)) != -1)
+		{
+			laarr[c+1].extLength = (etype << 30) | elen;
+			laarr[c+1].extLocation = eloc;
+			count ++;
+			startnum ++;
+			endnum ++;
+		}
+		else
+			lastblock = 1;
+	}
+	udf_release_data(nbh);
+	if (!pbh)
+		pbh = cbh;
+	else
+		udf_release_data(cbh);
+
+	/* if the current extent is not recorded but allocated, get the
+		block in the extent corresponding to the requested block */
+	if ((laarr[c].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30))
+		newblocknum = laarr[c].extLocation.logicalBlockNum + offset;
+	else /* otherwise, allocate a new block */
+	{
+		if (UDF_I_NEXT_ALLOC_BLOCK(inode) == block)
+			goal = UDF_I_NEXT_ALLOC_GOAL(inode);
+
+		if (!goal)
+		{
+			if (!(goal = pgoal))
+				goal = UDF_I_LOCATION(inode).logicalBlockNum + 1;
+		}
+
+		if (!(newblocknum = udf_new_block(inode->i_sb, inode,
+			UDF_I_LOCATION(inode).partitionReferenceNum, goal, err)))
+		{
+			udf_release_data(pbh);
+			*err = -ENOSPC;
+			return NULL;
+		}
+		UDF_I_LENEXTENTS(inode) += inode->i_sb->s_blocksize;
+	}
+
+	/* if the extent the requsted block is located in contains multiple blocks,
+       split the extent into at most three extents. blocks prior to requested
+       block, requested block, and blocks after requested block */
+	udf_split_extents(inode, &c, offset, newblocknum, laarr, &endnum);
+
+#ifdef UDF_PREALLOCATE
+	/* preallocate blocks */
+	udf_prealloc_extents(inode, c, lastblock, laarr, &endnum);
+#endif
+
+	/* merge any continuous blocks in laarr */
+	udf_merge_extents(inode, laarr, &endnum);
+
+	/* write back the new extents, inserting new extents if the new number
+       of extents is greater than the old number, and deleting extents if
+       the new number of extents is less than the old number */
+	udf_update_extents(inode, laarr, startnum, endnum, pbloc, pextoffset, &pbh);
+
+	udf_release_data(pbh);
+
+	if (!(newblock = udf_get_pblock(inode->i_sb, newblocknum,
+		UDF_I_LOCATION(inode).partitionReferenceNum, 0)))
+	{
+		return NULL;
+	}
+	*phys = newblock;
+	*err = 0;
+	*new = 1;
+	UDF_I_NEXT_ALLOC_BLOCK(inode) = block;
+	UDF_I_NEXT_ALLOC_GOAL(inode) = newblocknum;
+	inode->i_ctime = CURRENT_TIME;
+	UDF_I_UCTIME(inode) = CURRENT_UTIME;
+
+	if (IS_SYNC(inode))
+		udf_sync_inode(inode);
+	else
+		mark_inode_dirty(inode);
+	return result;
+}
+
+static void udf_split_extents(struct inode *inode, int *c, int offset, int newblocknum,
+	long_ad laarr[EXTENT_MERGE_SIZE], int *endnum)
+{
+	if ((laarr[*c].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30) ||
+		(laarr[*c].extLength >> 30) == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30))
+	{
+		int curr = *c;
+		int blen = ((laarr[curr].extLength & UDF_EXTENT_LENGTH_MASK) +
+			inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits;
+		int type = laarr[curr].extLength & ~UDF_EXTENT_LENGTH_MASK;
+
+		if (blen == 1)
+			;
+		else if (!offset || blen == offset + 1)
+		{
+			laarr[curr+2] = laarr[curr+1];
+			laarr[curr+1] = laarr[curr];
+		}
+		else
+		{
+			laarr[curr+3] = laarr[curr+1];
+			laarr[curr+2] = laarr[curr+1] = laarr[curr];
+		}
+
+		if (offset)
+		{
+			if ((type >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30))
+			{
+				udf_free_blocks(inode->i_sb, inode, laarr[curr].extLocation, 0, offset);
+				laarr[curr].extLength = EXT_NOT_RECORDED_NOT_ALLOCATED |
+					(offset << inode->i_sb->s_blocksize_bits);
+				laarr[curr].extLocation.logicalBlockNum = 0;
+				laarr[curr].extLocation.partitionReferenceNum = 0;
+			}
+			else
+				laarr[curr].extLength = type |
+					(offset << inode->i_sb->s_blocksize_bits);
+			curr ++;
+			(*c) ++;
+			(*endnum) ++;
+		}
+		
+		laarr[curr].extLocation.logicalBlockNum = newblocknum;
+		if ((type >> 30) == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30))
+			laarr[curr].extLocation.partitionReferenceNum =
+				UDF_I_LOCATION(inode).partitionReferenceNum;
+		laarr[curr].extLength = EXT_RECORDED_ALLOCATED |
+			inode->i_sb->s_blocksize;
+		curr ++;
+
+		if (blen != offset + 1)
+		{
+			if ((type >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30))
+				laarr[curr].extLocation.logicalBlockNum += (offset + 1);
+			laarr[curr].extLength = type |
+				((blen - (offset + 1)) << inode->i_sb->s_blocksize_bits);
+			curr ++;
+			(*endnum) ++;
+		}
+	}
+}
+
+static void udf_prealloc_extents(struct inode *inode, int c, int lastblock,
+	 long_ad laarr[EXTENT_MERGE_SIZE], int *endnum)
+{
+	int start, length = 0, currlength = 0, i;
+
+	if (*endnum >= (c+1))
+	{
+		if (!lastblock)
+			return;
+		else
+			start = c;
+	}
+	else
+	{
+		if ((laarr[c+1].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30))
+		{
+			start = c+1;
+			length = currlength = (((laarr[c+1].extLength & UDF_EXTENT_LENGTH_MASK) +
+				inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits);
+		}
+		else
+			start = c;
+	}
+
+	for (i=start+1; i<=*endnum; i++)
+	{
+		if (i == *endnum)
+		{
+			if (lastblock)
+				length += UDF_DEFAULT_PREALLOC_BLOCKS;
+		}
+		else if ((laarr[i].extLength >> 30) == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30))
+			length += (((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
+				inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits);
+		else
+			break;
+	}
+
+	if (length)
+	{
+		int next = laarr[start].extLocation.logicalBlockNum +
+			(((laarr[start].extLength & UDF_EXTENT_LENGTH_MASK) +
+			inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits);
+		int numalloc = udf_prealloc_blocks(inode->i_sb, inode,
+			laarr[start].extLocation.partitionReferenceNum,
+			next, (UDF_DEFAULT_PREALLOC_BLOCKS > length ? length :
+				UDF_DEFAULT_PREALLOC_BLOCKS) - currlength);
+
+		if (numalloc)
+		{
+			if (start == (c+1))
+				laarr[start].extLength +=
+					(numalloc << inode->i_sb->s_blocksize_bits);
+			else
+			{
+				memmove(&laarr[c+2], &laarr[c+1],
+					sizeof(long_ad) * (*endnum - (c+1)));
+				(*endnum) ++;
+				laarr[c+1].extLocation.logicalBlockNum = next;
+				laarr[c+1].extLocation.partitionReferenceNum =
+					laarr[c].extLocation.partitionReferenceNum;
+				laarr[c+1].extLength = EXT_NOT_RECORDED_ALLOCATED |
+					(numalloc << inode->i_sb->s_blocksize_bits);
+				start = c+1;
+			}
+
+			for (i=start+1; numalloc && i<*endnum; i++)
+			{
+				int elen = ((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
+					inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits;
+
+				if (elen > numalloc)
+				{
+					laarr[c].extLength -=
+						(numalloc << inode->i_sb->s_blocksize_bits);
+					numalloc = 0;
+				}
+				else
+				{
+					numalloc -= elen;
+					if (*endnum > (i+1))
+						memmove(&laarr[i], &laarr[i+1], 
+							sizeof(long_ad) * (*endnum - (i+1)));
+					i --;
+					(*endnum) --;
+				}
+			}
+			UDF_I_LENEXTENTS(inode) += numalloc << inode->i_sb->s_blocksize_bits;
+		}
+	}
+}
+
+static void udf_merge_extents(struct inode *inode,
+	 long_ad laarr[EXTENT_MERGE_SIZE], int *endnum)
+{
+	int i;
+
+	for (i=0; i<(*endnum-1); i++)
+	{
+		if ((laarr[i].extLength >> 30) == (laarr[i+1].extLength >> 30))
+		{
+			if (((laarr[i].extLength >> 30) == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) ||
+				((laarr[i+1].extLocation.logicalBlockNum - laarr[i].extLocation.logicalBlockNum) ==
+				(((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
+				inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits)))
+			{
+				if (((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
+					(laarr[i+1].extLength & UDF_EXTENT_LENGTH_MASK) +
+					inode->i_sb->s_blocksize - 1) & ~UDF_EXTENT_LENGTH_MASK)
+				{
+					laarr[i+1].extLength = (laarr[i+1].extLength -
+						(laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
+						UDF_EXTENT_LENGTH_MASK) & ~(inode->i_sb->s_blocksize-1);
+					laarr[i].extLength = (UDF_EXTENT_LENGTH_MASK + 1) -
+						inode->i_sb->s_blocksize;
+					laarr[i+1].extLocation.logicalBlockNum =
+						laarr[i].extLocation.logicalBlockNum +
+						((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) >>
+							inode->i_sb->s_blocksize_bits);
+				}
+				else
+				{
+					laarr[i].extLength = laarr[i+1].extLength +
+						(((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
+						inode->i_sb->s_blocksize - 1) & ~(inode->i_sb->s_blocksize-1));
+					if (*endnum > (i+2))
+						memmove(&laarr[i+1], &laarr[i+2],
+							sizeof(long_ad) * (*endnum - (i+2)));
+					i --;
+					(*endnum) --;
+				}
+			}
+		}
+	}
+}
+
+static void udf_update_extents(struct inode *inode,
+	long_ad laarr[EXTENT_MERGE_SIZE], int startnum, int endnum,
+	lb_addr pbloc, uint32_t pextoffset, struct buffer_head **pbh)
+{
+	int start = 0, i;
+	lb_addr tmploc;
+	uint32_t tmplen;
+
+	if (startnum > endnum)
+	{
+		for (i=0; i<(startnum-endnum); i++)
+		{
+			udf_delete_aext(inode, pbloc, pextoffset, laarr[i].extLocation,
+				laarr[i].extLength, *pbh);
+		}
+	}
+	else if (startnum < endnum)
+	{
+		for (i=0; i<(endnum-startnum); i++)
+		{
+			udf_insert_aext(inode, pbloc, pextoffset, laarr[i].extLocation,
+				laarr[i].extLength, *pbh);
+			udf_next_aext(inode, &pbloc, &pextoffset, &laarr[i].extLocation,
+				&laarr[i].extLength, pbh, 1);
+			start ++;
+		}
+	}
+
+	for (i=start; i<endnum; i++)
+	{
+		udf_next_aext(inode, &pbloc, &pextoffset, &tmploc, &tmplen, pbh, 0);
+		udf_write_aext(inode, pbloc, &pextoffset, laarr[i].extLocation,
+			laarr[i].extLength, *pbh, 1);
+	}
+}
+
+struct buffer_head * udf_bread(struct inode * inode, int block,
+	int create, int * err)
+{
+	struct buffer_head * bh = NULL;
+
+	bh = udf_getblk(inode, block, create, err);
+	if (!bh)
+		return NULL;
+
+	if (buffer_uptodate(bh))
+		return bh;
+	ll_rw_block(READ, 1, &bh);
+	wait_on_buffer(bh);
+	if (buffer_uptodate(bh))
+		return bh;
+	brelse(bh);
+	*err = -EIO;
+	return NULL;
+}
+
+void udf_truncate(struct inode * inode)
+{
+	int offset;
+	struct buffer_head *bh;
+	int err;
+
+	if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
+			S_ISLNK(inode->i_mode)))
+		return;
+	if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
+		return;
+
+	if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB)
+	{
+		if (inode->i_sb->s_blocksize < (udf_file_entry_alloc_offset(inode) +
+			inode->i_size))
+		{
+			udf_expand_file_adinicb(inode, inode->i_size, &err);
+			if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB)
+			{
+				inode->i_size = UDF_I_LENALLOC(inode);
+				return;
+			}
+			else
+				udf_truncate_extents(inode);
+		}
+		else
+		{
+			offset = (inode->i_size & (inode->i_sb->s_blocksize - 1)) +
+				udf_file_entry_alloc_offset(inode);
+
+			if ((bh = udf_tread(inode->i_sb,
+				udf_get_lb_pblock(inode->i_sb, UDF_I_LOCATION(inode), 0))))
+			{
+				memset(bh->b_data + offset, 0x00, inode->i_sb->s_blocksize - offset);
+				mark_buffer_dirty(bh);
+				udf_release_data(bh);
+			}
+			UDF_I_LENALLOC(inode) = inode->i_size;
+		}
+	}
+	else
+	{
+		block_truncate_page(inode->i_mapping, inode->i_size, udf_get_block);
+		udf_truncate_extents(inode);
+	}	
+
+	inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+	UDF_I_UMTIME(inode) = UDF_I_UCTIME(inode) = CURRENT_UTIME;
+	if (IS_SYNC(inode))
+		udf_sync_inode (inode);
+	else
+		mark_inode_dirty(inode);
+}
+
+/*
+ * udf_read_inode
+ *
+ * PURPOSE
+ *	Read an inode.
+ *
+ * DESCRIPTION
+ *	This routine is called by iget() [which is called by udf_iget()]
+ *      (clean_inode() will have been called first)
+ *	when an inode is first read into memory.
+ *
+ * HISTORY
+ *	July 1, 1997 - Andrew E. Mileski
+ *	Written, tested, and released.
+ *
+ * 12/19/98 dgb  Updated to fix size problems.
+ */
+
+void
+udf_read_inode(struct inode *inode)
+{
+	memset(&UDF_I_LOCATION(inode), 0xFF, sizeof(lb_addr));
+}
+
+void
+__udf_read_inode(struct inode *inode)
+{
+	struct buffer_head *bh = NULL;
+	struct fileEntry *fe;
+	uint16_t ident;
+
+	/*
+	 * Set defaults, but the inode is still incomplete!
+	 * Note: get_new_inode() sets the following on a new inode:
+	 *      i_sb = sb
+	 *      i_dev = sb->s_dev;
+	 *      i_no = ino
+	 *      i_flags = sb->s_flags
+	 *      i_state = 0
+	 * clean_inode(): zero fills and sets
+	 *      i_count = 1
+	 *      i_nlink = 1
+	 *      i_op = NULL;
+	 */
+
+	inode->i_blksize = PAGE_SIZE;
+
+	bh = udf_read_ptagged(inode->i_sb, UDF_I_LOCATION(inode), 0, &ident);
+
+	if (!bh)
+	{
+		printk(KERN_ERR "udf: udf_read_inode(ino %ld) failed !bh\n",
+			inode->i_ino);
+		make_bad_inode(inode);
+		return;
+	}
+
+	if (ident != TAG_IDENT_FE && ident != TAG_IDENT_EFE &&
+		ident != TAG_IDENT_USE)
+	{
+		printk(KERN_ERR "udf: udf_read_inode(ino %ld) failed ident=%d\n",
+			inode->i_ino, ident);
+		udf_release_data(bh);
+		make_bad_inode(inode);
+		return;
+	}
+
+	fe = (struct fileEntry *)bh->b_data;
+
+	if (le16_to_cpu(fe->icbTag.strategyType) == 4096)
+	{
+		struct buffer_head *ibh = NULL, *nbh = NULL;
+		struct indirectEntry *ie;
+
+		ibh = udf_read_ptagged(inode->i_sb, UDF_I_LOCATION(inode), 1, &ident);
+		if (ident == TAG_IDENT_IE)
+		{
+			if (ibh)
+			{
+				lb_addr loc;
+				ie = (struct indirectEntry *)ibh->b_data;
+	
+				loc = lelb_to_cpu(ie->indirectICB.extLocation);
+	
+				if (ie->indirectICB.extLength && 
+					(nbh = udf_read_ptagged(inode->i_sb, loc, 0, &ident)))
+				{
+					if (ident == TAG_IDENT_FE ||
+						ident == TAG_IDENT_EFE)
+					{
+						memcpy(&UDF_I_LOCATION(inode), &loc, sizeof(lb_addr));
+						udf_release_data(bh);
+						udf_release_data(ibh);
+						udf_release_data(nbh);
+						__udf_read_inode(inode);
+						return;
+					}
+					else
+					{
+						udf_release_data(nbh);
+						udf_release_data(ibh);
+					}
+				}
+				else
+					udf_release_data(ibh);
+			}
+		}
+		else
+			udf_release_data(ibh);
+	}
+	else if (le16_to_cpu(fe->icbTag.strategyType) != 4)
+	{
+		printk(KERN_ERR "udf: unsupported strategy type: %d\n",
+			le16_to_cpu(fe->icbTag.strategyType));
+		udf_release_data(bh);
+		make_bad_inode(inode);
+		return;
+	}
+	udf_fill_inode(inode, bh);
+	udf_release_data(bh);
+}
+
+static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
+{
+	struct fileEntry *fe;
+	struct extendedFileEntry *efe;
+	time_t convtime;
+	long convtime_usec;
+	int offset, alen;
+
+	inode->i_version = ++event;
+	UDF_I_NEW_INODE(inode) = 0;
+
+	fe = (struct fileEntry *)bh->b_data;
+	efe = (struct extendedFileEntry *)bh->b_data;
+
+	if (le16_to_cpu(fe->icbTag.strategyType) == 4)
+		UDF_I_STRAT4096(inode) = 0;
+	else /* if (le16_to_cpu(fe->icbTag.strategyType) == 4096) */
+		UDF_I_STRAT4096(inode) = 1;
+
+	UDF_I_ALLOCTYPE(inode) = le16_to_cpu(fe->icbTag.flags) & ICBTAG_FLAG_AD_MASK;
+	if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_EFE)
+		UDF_I_EXTENDED_FE(inode) = 1;
+	else if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_FE)
+		UDF_I_EXTENDED_FE(inode) = 0;
+	else if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_USE)
+	{
+		UDF_I_LENALLOC(inode) =
+			le32_to_cpu(
+				((struct unallocSpaceEntry *)bh->b_data)->lengthAllocDescs);
+		return;
+	}
+
+	inode->i_uid = le32_to_cpu(fe->uid);
+	if ( inode->i_uid == -1 ) inode->i_uid = UDF_SB(inode->i_sb)->s_uid;
+
+	inode->i_gid = le32_to_cpu(fe->gid);
+	if ( inode->i_gid == -1 ) inode->i_gid = UDF_SB(inode->i_sb)->s_gid;
+
+	inode->i_nlink = le16_to_cpu(fe->fileLinkCount);
+	if (!inode->i_nlink)
+		inode->i_nlink = 1;
+	
+	inode->i_size = le64_to_cpu(fe->informationLength);
+	UDF_I_LENEXTENTS(inode) = inode->i_size;
+
+	inode->i_mode = udf_convert_permissions(fe);
+	inode->i_mode &= ~UDF_SB(inode->i_sb)->s_umask;
+
+	UDF_I_NEXT_ALLOC_BLOCK(inode) = 0;
+	UDF_I_NEXT_ALLOC_GOAL(inode) = 0;
+
+	if (UDF_I_EXTENDED_FE(inode) == 0)
+	{
+		inode->i_blocks = le64_to_cpu(fe->logicalBlocksRecorded) <<
+			(inode->i_sb->s_blocksize_bits - 9);
+
+		if ( udf_stamp_to_time(&convtime, &convtime_usec,
+			lets_to_cpu(fe->accessTime)) )
+		{
+			inode->i_atime = convtime;
+		}
+		else
+		{
+			inode->i_atime = UDF_SB_RECORDTIME(inode->i_sb);
+		}
+
+		if ( udf_stamp_to_time(&convtime, &convtime_usec,
+			lets_to_cpu(fe->modificationTime)) )
+		{
+			inode->i_mtime = convtime;
+			UDF_I_UMTIME(inode) = convtime_usec;
+		}
+		else
+		{
+			inode->i_mtime = UDF_SB_RECORDTIME(inode->i_sb);
+			UDF_I_UMTIME(inode) = 0;
+		}
+
+		if ( udf_stamp_to_time(&convtime, &convtime_usec,
+			lets_to_cpu(fe->attrTime)) )
+		{
+			inode->i_ctime = convtime;
+			UDF_I_UCTIME(inode) = convtime_usec;
+		}
+		else
+		{
+			inode->i_ctime = UDF_SB_RECORDTIME(inode->i_sb);
+			UDF_I_UCTIME(inode) = 0;
+		}
+
+		UDF_I_UNIQUE(inode) = le64_to_cpu(fe->uniqueID);
+		UDF_I_LENEATTR(inode) = le32_to_cpu(fe->lengthExtendedAttr);
+		UDF_I_LENALLOC(inode) = le32_to_cpu(fe->lengthAllocDescs);
+		offset = sizeof(struct fileEntry) + UDF_I_LENEATTR(inode);
+		alen = offset + UDF_I_LENALLOC(inode);
+	}
+	else
+	{
+		inode->i_blocks = le64_to_cpu(efe->logicalBlocksRecorded) << 
+			(inode->i_sb->s_blocksize_bits - 9);
+
+		if ( udf_stamp_to_time(&convtime, &convtime_usec,
+			lets_to_cpu(efe->accessTime)) )
+		{
+			inode->i_atime = convtime;
+		}
+		else
+		{
+			inode->i_atime = UDF_SB_RECORDTIME(inode->i_sb);
+		}
+
+		if ( udf_stamp_to_time(&convtime, &convtime_usec,
+			lets_to_cpu(efe->modificationTime)) )
+		{
+			inode->i_mtime = convtime;
+			UDF_I_UMTIME(inode) = convtime_usec;
+		}
+		else
+		{
+			inode->i_mtime = UDF_SB_RECORDTIME(inode->i_sb);
+			UDF_I_UMTIME(inode) = 0;
+		}
+
+		if ( udf_stamp_to_time(&convtime, &convtime_usec,
+			lets_to_cpu(efe->createTime)) )
+		{
+			UDF_I_CRTIME(inode) = convtime;
+			UDF_I_UCRTIME(inode) = convtime_usec;
+		}
+		else
+		{
+			UDF_I_CRTIME(inode) = UDF_SB_RECORDTIME(inode->i_sb);
+			UDF_I_UCRTIME(inode) = 0;
+		}
+
+		if ( udf_stamp_to_time(&convtime, &convtime_usec,
+			lets_to_cpu(efe->attrTime)) )
+		{
+			inode->i_ctime = convtime;
+			UDF_I_UCTIME(inode) = convtime_usec;
+		}
+		else
+		{
+			inode->i_ctime = UDF_SB_RECORDTIME(inode->i_sb);
+			UDF_I_UCTIME(inode) = 0;
+		}
+
+		UDF_I_UNIQUE(inode) = le64_to_cpu(efe->uniqueID);
+		UDF_I_LENEATTR(inode) = le32_to_cpu(efe->lengthExtendedAttr);
+		UDF_I_LENALLOC(inode) = le32_to_cpu(efe->lengthAllocDescs);
+		offset = sizeof(struct extendedFileEntry) + UDF_I_LENEATTR(inode);
+		alen = offset + UDF_I_LENALLOC(inode);
+	}
+
+	switch (fe->icbTag.fileType)
+	{
+		case ICBTAG_FILE_TYPE_DIRECTORY:
+		{
+			inode->i_op = &udf_dir_inode_operations;
+			inode->i_fop = &udf_dir_operations;
+			inode->i_mode |= S_IFDIR;
+			inode->i_nlink ++;
+			break;
+		}
+		case ICBTAG_FILE_TYPE_REALTIME:
+		case ICBTAG_FILE_TYPE_REGULAR:
+		case ICBTAG_FILE_TYPE_UNDEF:
+		{
+			if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB)
+				inode->i_data.a_ops = &udf_adinicb_aops;
+			else
+				inode->i_data.a_ops = &udf_aops;
+			inode->i_op = &udf_file_inode_operations;
+			inode->i_fop = &udf_file_operations;
+			inode->i_mode |= S_IFREG;
+			break;
+		}
+		case ICBTAG_FILE_TYPE_BLOCK:
+		{
+			inode->i_mode |= S_IFBLK;
+			break;
+		}
+		case ICBTAG_FILE_TYPE_CHAR:
+		{
+			inode->i_mode |= S_IFCHR;
+			break;
+		}
+		case ICBTAG_FILE_TYPE_FIFO:
+		{
+			init_special_inode(inode, inode->i_mode | S_IFIFO, 0);
+			break;
+		}
+		case ICBTAG_FILE_TYPE_SYMLINK:
+		{
+			inode->i_data.a_ops = &udf_symlink_aops;
+			inode->i_op = &page_symlink_inode_operations;
+			inode->i_mode = S_IFLNK|S_IRWXUGO;
+			break;
+		}
+		default:
+		{
+			printk(KERN_ERR "udf: udf_fill_inode(ino %ld) failed unknown file type=%d\n",
+				inode->i_ino, fe->icbTag.fileType);
+			make_bad_inode(inode);
+			return;
+		}
+	}
+	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
+	{
+		struct buffer_head *tbh = NULL;
+		struct deviceSpec *dsea =
+			(struct deviceSpec *)
+				udf_get_extendedattr(inode, 12, 1, &tbh);
+
+		if (dsea)
+		{
+			init_special_inode(inode, inode->i_mode,
+				((le32_to_cpu(dsea->majorDeviceIdent)) << 8) |
+				(le32_to_cpu(dsea->minorDeviceIdent) & 0xFF));
+			/* Developer ID ??? */
+			udf_release_data(tbh);
+		}
+		else
+		{
+			make_bad_inode(inode);
+		}
+	}
+}
+
+static mode_t
+udf_convert_permissions(struct fileEntry *fe)
+{
+	mode_t mode;
+	uint32_t permissions;
+	uint32_t flags;
+
+	permissions = le32_to_cpu(fe->permissions);
+	flags = le16_to_cpu(fe->icbTag.flags);
+
+	mode =	(( permissions      ) & S_IRWXO) |
+		(( permissions >> 2 ) & S_IRWXG) |
+		(( permissions >> 4 ) & S_IRWXU) |
+		(( flags & ICBTAG_FLAG_SETUID) ? S_ISUID : 0) |
+		(( flags & ICBTAG_FLAG_SETGID) ? S_ISGID : 0) |
+		(( flags & ICBTAG_FLAG_STICKY) ? S_ISVTX : 0);
+
+	return mode;
+}
+
+/*
+ * udf_write_inode
+ *
+ * PURPOSE
+ *	Write out the specified inode.
+ *
+ * DESCRIPTION
+ *	This routine is called whenever an inode is synced.
+ *	Currently this routine is just a placeholder.
+ *
+ * HISTORY
+ *	July 1, 1997 - Andrew E. Mileski
+ *	Written, tested, and released.
+ */
+
+void udf_write_inode(struct inode * inode, int sync)
+{
+	lock_kernel();
+	udf_update_inode(inode, sync);
+	unlock_kernel();
+}
+
+int udf_sync_inode(struct inode * inode)
+{
+	return udf_update_inode(inode, 1);
+}
+
+static int
+udf_update_inode(struct inode *inode, int do_sync)
+{
+	struct buffer_head *bh = NULL;
+	struct fileEntry *fe;
+	struct extendedFileEntry *efe;
+	uint32_t udfperms;
+	uint16_t icbflags;
+	uint16_t crclen;
+	int i;
+	timestamp cpu_time;
+	int err = 0;
+
+	bh = udf_tread(inode->i_sb,
+		udf_get_lb_pblock(inode->i_sb, UDF_I_LOCATION(inode), 0));
+
+	if (!bh)
+	{
+		udf_debug("bread failure\n");
+		return -EIO;
+	}
+	fe = (struct fileEntry *)bh->b_data;
+	efe = (struct extendedFileEntry *)bh->b_data;
+	if (UDF_I_NEW_INODE(inode) == 1)
+	{
+		if (UDF_I_EXTENDED_FE(inode) == 0)
+			memset(bh->b_data, 0x00, sizeof(struct fileEntry));
+		else
+			memset(bh->b_data, 0x00, sizeof(struct extendedFileEntry));
+		memset(bh->b_data + udf_file_entry_alloc_offset(inode) +
+			UDF_I_LENALLOC(inode), 0x0, inode->i_sb->s_blocksize -
+			udf_file_entry_alloc_offset(inode) - UDF_I_LENALLOC(inode));
+		UDF_I_NEW_INODE(inode) = 0;
+	}
+
+	if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_USE)
+	{
+		struct unallocSpaceEntry *use =
+			(struct unallocSpaceEntry *)bh->b_data;
+
+		use->lengthAllocDescs = cpu_to_le32(UDF_I_LENALLOC(inode));
+		crclen = sizeof(struct unallocSpaceEntry) + UDF_I_LENALLOC(inode) -
+			sizeof(tag);
+		use->descTag.tagLocation = cpu_to_le32(UDF_I_LOCATION(inode).logicalBlockNum);
+		use->descTag.descCRCLength = cpu_to_le16(crclen);
+		use->descTag.descCRC = cpu_to_le16(udf_crc((char *)use + sizeof(tag), crclen, 0));
+
+		use->descTag.tagChecksum = 0;
+		for (i=0; i<16; i++)
+			if (i != 4)
+				use->descTag.tagChecksum += ((uint8_t *)&(use->descTag))[i];
+
+		mark_buffer_dirty(bh);
+		udf_release_data(bh);
+		return err;
+	}
+
+	if (inode->i_uid != UDF_SB(inode->i_sb)->s_uid)
+		fe->uid = cpu_to_le32(inode->i_uid);
+
+	if (inode->i_gid != UDF_SB(inode->i_sb)->s_gid)
+		fe->gid = cpu_to_le32(inode->i_gid);
+
+	udfperms =	((inode->i_mode & S_IRWXO)     ) |
+			((inode->i_mode & S_IRWXG) << 2) |
+			((inode->i_mode & S_IRWXU) << 4);
+
+	udfperms |=	(le32_to_cpu(fe->permissions) &
+			(FE_PERM_O_DELETE | FE_PERM_O_CHATTR |
+			 FE_PERM_G_DELETE | FE_PERM_G_CHATTR |
+			 FE_PERM_U_DELETE | FE_PERM_U_CHATTR));
+	fe->permissions = cpu_to_le32(udfperms);
+
+	if (S_ISDIR(inode->i_mode))
+		fe->fileLinkCount = cpu_to_le16(inode->i_nlink - 1);
+	else
+		fe->fileLinkCount = cpu_to_le16(inode->i_nlink);
+
+	fe->informationLength = cpu_to_le64(inode->i_size);
+
+	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
+	{
+		regid *eid;
+		struct buffer_head *tbh = NULL;
+		struct deviceSpec *dsea =
+			(struct deviceSpec *)
+				udf_get_extendedattr(inode, 12, 1, &tbh);	
+
+		if (!dsea)
+		{
+			dsea = (struct deviceSpec *)
+				udf_add_extendedattr(inode,
+					sizeof(struct deviceSpec) +
+					sizeof(regid), 12, 0x3, &tbh);
+			dsea->attrType = 12;
+			dsea->attrSubtype = 1;
+			dsea->attrLength = sizeof(struct deviceSpec) +
+				sizeof(regid);
+			dsea->impUseLength = sizeof(regid);
+		}
+		eid = (regid *)dsea->impUse;
+		memset(eid, 0, sizeof(regid));
+		strcpy(eid->ident, UDF_ID_DEVELOPER);
+		eid->identSuffix[0] = UDF_OS_CLASS_UNIX;
+		eid->identSuffix[1] = UDF_OS_ID_LINUX;
+		dsea->majorDeviceIdent = kdev_t_to_nr(inode->i_rdev) >> 8;
+		dsea->minorDeviceIdent = kdev_t_to_nr(inode->i_rdev) & 0xFF;
+		mark_buffer_dirty_inode(tbh, inode);
+		udf_release_data(tbh);
+	}
+
+	if (UDF_I_EXTENDED_FE(inode) == 0)
+	{
+		fe->logicalBlocksRecorded = cpu_to_le64(
+			(inode->i_blocks + (1 << (inode->i_sb->s_blocksize_bits - 9)) - 1) >>
+			(inode->i_sb->s_blocksize_bits - 9));
+
+		if (udf_time_to_stamp(&cpu_time, inode->i_atime, 0))
+			fe->accessTime = cpu_to_lets(cpu_time);
+		if (udf_time_to_stamp(&cpu_time, inode->i_mtime, UDF_I_UMTIME(inode)))
+			fe->modificationTime = cpu_to_lets(cpu_time);
+		if (udf_time_to_stamp(&cpu_time, inode->i_ctime, UDF_I_UCTIME(inode)))
+			fe->attrTime = cpu_to_lets(cpu_time);
+		memset(&(fe->impIdent), 0, sizeof(regid));
+		strcpy(fe->impIdent.ident, UDF_ID_DEVELOPER);
+		fe->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
+		fe->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
+		fe->uniqueID = cpu_to_le64(UDF_I_UNIQUE(inode));
+		fe->lengthExtendedAttr = cpu_to_le32(UDF_I_LENEATTR(inode));
+		fe->lengthAllocDescs = cpu_to_le32(UDF_I_LENALLOC(inode));
+		fe->descTag.tagIdent = le16_to_cpu(TAG_IDENT_FE);
+		crclen = sizeof(struct fileEntry);
+	}
+	else
+	{
+		efe->objectSize = cpu_to_le64(inode->i_size);
+		efe->logicalBlocksRecorded = cpu_to_le64(
+			(inode->i_blocks + (1 << (inode->i_sb->s_blocksize_bits - 9)) - 1) >>
+			(inode->i_sb->s_blocksize_bits - 9));
+
+		if (UDF_I_CRTIME(inode) >= inode->i_atime)
+		{
+			UDF_I_CRTIME(inode) = inode->i_atime;
+			UDF_I_UCRTIME(inode) = 0;
+		}
+		if (UDF_I_CRTIME(inode) > inode->i_mtime ||
+			(UDF_I_CRTIME(inode) == inode->i_mtime &&
+			 UDF_I_UCRTIME(inode) > UDF_I_UMTIME(inode)))
+		{
+			UDF_I_CRTIME(inode) = inode->i_mtime;
+			UDF_I_UCRTIME(inode) = UDF_I_UMTIME(inode);
+		}
+		if (UDF_I_CRTIME(inode) > inode->i_ctime ||
+			(UDF_I_CRTIME(inode) == inode->i_ctime &&
+			 UDF_I_UCRTIME(inode) > UDF_I_UCTIME(inode)))
+		{
+			UDF_I_CRTIME(inode) = inode->i_ctime;
+			UDF_I_UCRTIME(inode) = UDF_I_UCTIME(inode);
+		}
+
+		if (udf_time_to_stamp(&cpu_time, inode->i_atime, 0))
+			efe->accessTime = cpu_to_lets(cpu_time);
+		if (udf_time_to_stamp(&cpu_time, inode->i_mtime, UDF_I_UMTIME(inode)))
+			efe->modificationTime = cpu_to_lets(cpu_time);
+		if (udf_time_to_stamp(&cpu_time, UDF_I_CRTIME(inode), UDF_I_UCRTIME(inode)))
+			efe->createTime = cpu_to_lets(cpu_time);
+		if (udf_time_to_stamp(&cpu_time, inode->i_ctime, UDF_I_UCTIME(inode)))
+			efe->attrTime = cpu_to_lets(cpu_time);
+
+		memset(&(efe->impIdent), 0, sizeof(regid));
+		strcpy(efe->impIdent.ident, UDF_ID_DEVELOPER);
+		efe->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
+		efe->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
+		efe->uniqueID = cpu_to_le64(UDF_I_UNIQUE(inode));
+		efe->lengthExtendedAttr = cpu_to_le32(UDF_I_LENEATTR(inode));
+		efe->lengthAllocDescs = cpu_to_le32(UDF_I_LENALLOC(inode));
+		efe->descTag.tagIdent = le16_to_cpu(TAG_IDENT_EFE);
+		crclen = sizeof(struct extendedFileEntry);
+	}
+	if (UDF_I_STRAT4096(inode))
+	{
+		fe->icbTag.strategyType = cpu_to_le16(4096);
+		fe->icbTag.strategyParameter = cpu_to_le16(1);
+		fe->icbTag.numEntries = cpu_to_le16(2);
+	}
+	else
+	{
+		fe->icbTag.strategyType = cpu_to_le16(4);
+		fe->icbTag.numEntries = cpu_to_le16(1);
+	}
+
+	if (S_ISDIR(inode->i_mode))
+		fe->icbTag.fileType = ICBTAG_FILE_TYPE_DIRECTORY;
+	else if (S_ISREG(inode->i_mode))
+		fe->icbTag.fileType = ICBTAG_FILE_TYPE_REGULAR;
+	else if (S_ISLNK(inode->i_mode))
+		fe->icbTag.fileType = ICBTAG_FILE_TYPE_SYMLINK;
+	else if (S_ISBLK(inode->i_mode))
+		fe->icbTag.fileType = ICBTAG_FILE_TYPE_BLOCK;
+	else if (S_ISCHR(inode->i_mode))
+		fe->icbTag.fileType = ICBTAG_FILE_TYPE_CHAR;
+	else if (S_ISFIFO(inode->i_mode))
+		fe->icbTag.fileType = ICBTAG_FILE_TYPE_FIFO;
+
+	icbflags =	UDF_I_ALLOCTYPE(inode) |
+			((inode->i_mode & S_ISUID) ? ICBTAG_FLAG_SETUID : 0) |
+			((inode->i_mode & S_ISGID) ? ICBTAG_FLAG_SETGID : 0) |
+			((inode->i_mode & S_ISVTX) ? ICBTAG_FLAG_STICKY : 0) |
+			(le16_to_cpu(fe->icbTag.flags) &
+				~(ICBTAG_FLAG_AD_MASK | ICBTAG_FLAG_SETUID |
+				ICBTAG_FLAG_SETGID | ICBTAG_FLAG_STICKY));
+
+	fe->icbTag.flags = cpu_to_le16(icbflags);
+	if (UDF_SB_UDFREV(inode->i_sb) >= 0x0200)
+		fe->descTag.descVersion = cpu_to_le16(3);
+	else
+		fe->descTag.descVersion = cpu_to_le16(2);
+	fe->descTag.tagSerialNum = cpu_to_le16(UDF_SB_SERIALNUM(inode->i_sb));
+	fe->descTag.tagLocation = cpu_to_le32(UDF_I_LOCATION(inode).logicalBlockNum);
+	crclen += UDF_I_LENEATTR(inode) + UDF_I_LENALLOC(inode) - sizeof(tag);
+	fe->descTag.descCRCLength = cpu_to_le16(crclen);
+	fe->descTag.descCRC = cpu_to_le16(udf_crc((char *)fe + sizeof(tag), crclen, 0));
+
+	fe->descTag.tagChecksum = 0;
+	for (i=0; i<16; i++)
+		if (i != 4)
+			fe->descTag.tagChecksum += ((uint8_t *)&(fe->descTag))[i];
+
+	/* write the data blocks */
+	mark_buffer_dirty(bh);
+	if (do_sync)
+	{
+		ll_rw_block(WRITE, 1, &bh);
+		wait_on_buffer(bh);
+		if (buffer_req(bh) && !buffer_uptodate(bh))
+		{
+			printk("IO error syncing udf inode [%s:%08lx]\n",
+				bdevname(inode->i_dev), inode->i_ino);
+			err = -EIO;
+		}
+	}
+	udf_release_data(bh);
+	return err;
+}
+
+/*
+ * udf_iget
+ *
+ * PURPOSE
+ *	Get an inode.
+ *
+ * DESCRIPTION
+ *	This routine replaces iget() and read_inode().
+ *
+ * HISTORY
+ *	October 3, 1997 - Andrew E. Mileski
+ *	Written, tested, and released.
+ *
+ * 12/19/98 dgb  Added semaphore and changed to be a wrapper of iget
+ */
+struct inode *
+udf_iget(struct super_block *sb, lb_addr ino)
+{
+	struct inode *inode;
+	unsigned long block;
+
+	block = udf_get_lb_pblock(sb, ino, 0);
+
+	/* Get the inode */
+
+	inode = iget(sb, block);
+		/* calls udf_read_inode() ! */
+
+	if (!inode)
+	{
+		printk(KERN_ERR "udf: iget() failed\n");
+		return NULL;
+	}
+	else if (is_bad_inode(inode))
+	{
+		iput(inode);
+		return NULL;
+	}
+	else if (UDF_I_LOCATION(inode).logicalBlockNum == 0xFFFFFFFF &&
+		UDF_I_LOCATION(inode).partitionReferenceNum == 0xFFFF)
+	{
+		memcpy(&UDF_I_LOCATION(inode), &ino, sizeof(lb_addr));
+		__udf_read_inode(inode);
+		if (is_bad_inode(inode))
+		{
+			iput(inode);
+			return NULL;
+		}
+	}
+
+	if ( ino.logicalBlockNum >= UDF_SB_PARTLEN(sb, ino.partitionReferenceNum) )
+	{
+		udf_debug("block=%d, partition=%d out of range\n",
+			ino.logicalBlockNum, ino.partitionReferenceNum);
+		make_bad_inode(inode);
+		iput(inode);
+		return NULL;
+ 	}
+
+	return inode;
+}
+
+int8_t udf_add_aext(struct inode *inode, lb_addr *bloc, int *extoffset,
+	lb_addr eloc, uint32_t elen, struct buffer_head **bh, int inc)
+{
+	int adsize;
+	short_ad *sad = NULL;
+	long_ad *lad = NULL;
+	struct allocExtDesc *aed;
+	int8_t etype;
+
+	if (!(*bh))
+	{
+		if (!(*bh = udf_tread(inode->i_sb,
+			udf_get_lb_pblock(inode->i_sb, *bloc, 0))))
+		{
+			udf_debug("reading block %d failed!\n",
+				udf_get_lb_pblock(inode->i_sb, *bloc, 0));
+			return -1;
+		}
+	}
+
+	if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_SHORT)
+		adsize = sizeof(short_ad);
+	else if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_LONG)
+		adsize = sizeof(long_ad);
+	else
+		return -1;
+
+	if (*extoffset + (2 * adsize) > inode->i_sb->s_blocksize)
+	{
+		char *sptr, *dptr;
+		struct buffer_head *nbh;
+		int err, loffset;
+		lb_addr obloc = *bloc;
+
+		if (!(bloc->logicalBlockNum = udf_new_block(inode->i_sb, inode,
+			obloc.partitionReferenceNum, obloc.logicalBlockNum, &err)))
+		{
+			return -1;
+		}
+		if (!(nbh = udf_tgetblk(inode->i_sb, udf_get_lb_pblock(inode->i_sb,
+			*bloc, 0))))
+		{
+			return -1;
+		}
+		lock_buffer(nbh);
+		memset(nbh->b_data, 0x00, inode->i_sb->s_blocksize);
+		mark_buffer_uptodate(nbh, 1);
+		unlock_buffer(nbh);
+		mark_buffer_dirty_inode(nbh, inode);
+
+		aed = (struct allocExtDesc *)(nbh->b_data);
+		if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT))
+			aed->previousAllocExtLocation = cpu_to_le32(obloc.logicalBlockNum);
+		if (*extoffset + adsize > inode->i_sb->s_blocksize)
+		{
+			loffset = *extoffset;
+			aed->lengthAllocDescs = cpu_to_le32(adsize);
+			sptr = (*bh)->b_data + *extoffset - adsize;
+			dptr = nbh->b_data + sizeof(struct allocExtDesc);
+			memcpy(dptr, sptr, adsize);
+			*extoffset = sizeof(struct allocExtDesc) + adsize;
+		}
+		else
+		{
+			loffset = *extoffset + adsize;
+			aed->lengthAllocDescs = cpu_to_le32(0);
+			sptr = (*bh)->b_data + *extoffset;
+			*extoffset = sizeof(struct allocExtDesc);
+
+			if (memcmp(&UDF_I_LOCATION(inode), &obloc, sizeof(lb_addr)))
+			{
+				aed = (struct allocExtDesc *)(*bh)->b_data;
+				aed->lengthAllocDescs =
+					cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) + adsize);
+			}
+			else
+			{
+				UDF_I_LENALLOC(inode) += adsize;
+				mark_inode_dirty(inode);
+			}
+		}
+		if (UDF_SB_UDFREV(inode->i_sb) >= 0x0200)
+			udf_new_tag(nbh->b_data, TAG_IDENT_AED, 3, 1,
+				bloc->logicalBlockNum, sizeof(tag));
+		else
+			udf_new_tag(nbh->b_data, TAG_IDENT_AED, 2, 1,
+				bloc->logicalBlockNum, sizeof(tag));
+		switch (UDF_I_ALLOCTYPE(inode))
+		{
+			case ICBTAG_FLAG_AD_SHORT:
+			{
+				sad = (short_ad *)sptr;
+				sad->extLength = cpu_to_le32(
+					EXT_NEXT_EXTENT_ALLOCDECS |
+					inode->i_sb->s_blocksize);
+				sad->extPosition = cpu_to_le32(bloc->logicalBlockNum);
+				break;
+			}
+			case ICBTAG_FLAG_AD_LONG:
+			{
+				lad = (long_ad *)sptr;
+				lad->extLength = cpu_to_le32(
+					EXT_NEXT_EXTENT_ALLOCDECS |
+					inode->i_sb->s_blocksize);
+				lad->extLocation = cpu_to_lelb(*bloc);
+				memset(lad->impUse, 0x00, sizeof(lad->impUse));
+				break;
+			}
+		}
+		if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) || UDF_SB_UDFREV(inode->i_sb) >= 0x0201)
+			udf_update_tag((*bh)->b_data, loffset);
+		else
+			udf_update_tag((*bh)->b_data, sizeof(struct allocExtDesc));
+		mark_buffer_dirty_inode(*bh, inode);
+		udf_release_data(*bh);
+		*bh = nbh;
+	}
+
+	etype = udf_write_aext(inode, *bloc, extoffset, eloc, elen, *bh, inc);
+
+	if (!memcmp(&UDF_I_LOCATION(inode), bloc, sizeof(lb_addr)))
+	{
+		UDF_I_LENALLOC(inode) += adsize;
+		mark_inode_dirty(inode);
+	}
+	else
+	{
+		aed = (struct allocExtDesc *)(*bh)->b_data;
+		aed->lengthAllocDescs =
+			cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) + adsize);
+		if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) || UDF_SB_UDFREV(inode->i_sb) >= 0x0201)
+			udf_update_tag((*bh)->b_data, *extoffset + (inc ? 0 : adsize));
+		else
+			udf_update_tag((*bh)->b_data, sizeof(struct allocExtDesc));
+		mark_buffer_dirty_inode(*bh, inode);
+	}
+
+	return etype;
+}
+
+int8_t udf_write_aext(struct inode *inode, lb_addr bloc, int *extoffset,
+    lb_addr eloc, uint32_t elen, struct buffer_head *bh, int inc)
+{
+	int adsize;
+	short_ad *sad = NULL;
+	long_ad *lad = NULL;
+
+	if (!(bh))
+	{
+		if (!(bh = udf_tread(inode->i_sb,
+			udf_get_lb_pblock(inode->i_sb, bloc, 0))))
+		{
+			udf_debug("reading block %d failed!\n",
+				udf_get_lb_pblock(inode->i_sb, bloc, 0));
+			return -1;
+		}
+	}
+	else
+		atomic_inc(&bh->b_count);
+
+	if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_SHORT)
+		adsize = sizeof(short_ad);
+	else if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_LONG)
+		adsize = sizeof(long_ad);
+	else
+		return -1;
+
+	switch (UDF_I_ALLOCTYPE(inode))
+	{
+		case ICBTAG_FLAG_AD_SHORT:
+		{
+			sad = (short_ad *)((bh)->b_data + *extoffset);
+			sad->extLength = cpu_to_le32(elen);
+			sad->extPosition = cpu_to_le32(eloc.logicalBlockNum);
+			break;
+		}
+		case ICBTAG_FLAG_AD_LONG:
+		{
+			lad = (long_ad *)((bh)->b_data + *extoffset);
+			lad->extLength = cpu_to_le32(elen);
+			lad->extLocation = cpu_to_lelb(eloc);
+			memset(lad->impUse, 0x00, sizeof(lad->impUse));
+			break;
+		}
+	}
+
+	if (memcmp(&UDF_I_LOCATION(inode), &bloc, sizeof(lb_addr)))
+	{
+		if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) || UDF_SB_UDFREV(inode->i_sb) >= 0x0201)
+		{
+			struct allocExtDesc *aed = (struct allocExtDesc *)(bh)->b_data;
+			udf_update_tag((bh)->b_data,
+				le32_to_cpu(aed->lengthAllocDescs) + sizeof(struct allocExtDesc));
+		}
+		mark_buffer_dirty_inode(bh, inode);
+	}
+	else
+	{
+		mark_inode_dirty(inode);
+		mark_buffer_dirty(bh);
+	}
+
+	if (inc)
+		*extoffset += adsize;
+	udf_release_data(bh);
+	return (elen >> 30);
+}
+
+int8_t udf_next_aext(struct inode *inode, lb_addr *bloc, int *extoffset,
+	lb_addr *eloc, uint32_t *elen, struct buffer_head **bh, int inc)
+{
+	uint16_t tagIdent;
+	int pos, alen;
+	int8_t etype;
+
+	if (!(*bh))
+	{
+		if (!(*bh = udf_tread(inode->i_sb,
+			udf_get_lb_pblock(inode->i_sb, *bloc, 0))))
+		{
+			udf_debug("reading block %d failed!\n",
+				udf_get_lb_pblock(inode->i_sb, *bloc, 0));
+			return -1;
+		}
+	}
+
+	tagIdent = le16_to_cpu(((tag *)(*bh)->b_data)->tagIdent);
+
+	if (!memcmp(&UDF_I_LOCATION(inode), bloc, sizeof(lb_addr)))
+	{
+		if (tagIdent == TAG_IDENT_FE || tagIdent == TAG_IDENT_EFE ||
+			UDF_I_NEW_INODE(inode))
+		{
+			pos = udf_file_entry_alloc_offset(inode);
+			alen = UDF_I_LENALLOC(inode) + pos;
+		}
+		else if (tagIdent == TAG_IDENT_USE)
+		{
+			pos = sizeof(struct unallocSpaceEntry);
+			alen = UDF_I_LENALLOC(inode) + pos;
+		}
+		else
+			return -1;
+	}
+	else if (tagIdent == TAG_IDENT_AED)
+	{
+		struct allocExtDesc *aed = (struct allocExtDesc *)(*bh)->b_data;
+
+		pos = sizeof(struct allocExtDesc);
+		alen = le32_to_cpu(aed->lengthAllocDescs) + pos;
+	}
+	else
+		return -1;
+
+	if (!(*extoffset))
+		*extoffset = pos;
+
+	switch (UDF_I_ALLOCTYPE(inode))
+	{
+		case ICBTAG_FLAG_AD_SHORT:
+		{
+			short_ad *sad;
+
+			if (!(sad = udf_get_fileshortad((*bh)->b_data, alen, extoffset, inc)))
+				return -1;
+
+			if ((etype = le32_to_cpu(sad->extLength) >> 30) == (EXT_NEXT_EXTENT_ALLOCDECS >> 30))
+			{
+				bloc->logicalBlockNum = le32_to_cpu(sad->extPosition);
+				*extoffset = 0;
+				udf_release_data(*bh);
+				*bh = NULL;
+				return udf_next_aext(inode, bloc, extoffset, eloc, elen, bh, inc);
+			}
+			else
+			{
+				eloc->logicalBlockNum = le32_to_cpu(sad->extPosition);
+				eloc->partitionReferenceNum = UDF_I_LOCATION(inode).partitionReferenceNum;
+				*elen = le32_to_cpu(sad->extLength) & UDF_EXTENT_LENGTH_MASK;
+			}
+			break;
+		}
+		case ICBTAG_FLAG_AD_LONG:
+		{
+			long_ad *lad;
+
+			if (!(lad = udf_get_filelongad((*bh)->b_data, alen, extoffset, inc)))
+				return -1;
+
+			if ((etype = le32_to_cpu(lad->extLength) >> 30) == (EXT_NEXT_EXTENT_ALLOCDECS >> 30))
+			{
+				*bloc = lelb_to_cpu(lad->extLocation);
+				*extoffset = 0;
+				udf_release_data(*bh);
+				*bh = NULL;
+				return udf_next_aext(inode, bloc, extoffset, eloc, elen, bh, inc);
+			}
+			else
+			{
+				*eloc = lelb_to_cpu(lad->extLocation);
+				*elen = le32_to_cpu(lad->extLength) & UDF_EXTENT_LENGTH_MASK;
+			}
+			break;
+		}
+		case ICBTAG_FLAG_AD_IN_ICB:
+		{
+			if (UDF_I_LENALLOC(inode) == 0)
+				return -1;
+			etype = (EXT_RECORDED_ALLOCATED >> 30);
+			*eloc = UDF_I_LOCATION(inode);
+			*elen = UDF_I_LENALLOC(inode);
+			break;
+		}
+		default:
+		{
+			udf_debug("alloc_type = %d unsupported\n", UDF_I_ALLOCTYPE(inode));
+			return -1;
+		}
+	}
+	if (*elen)
+		return etype;
+
+	udf_debug("Empty Extent, inode=%ld, alloctype=%d, eloc=%d, elen=%d, etype=%d, extoffset=%d\n",
+		inode->i_ino, UDF_I_ALLOCTYPE(inode), eloc->logicalBlockNum, *elen, etype, *extoffset);
+	if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_SHORT)
+		*extoffset -= sizeof(short_ad);
+	else if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_LONG)
+		*extoffset -= sizeof(long_ad);
+	return -1;
+}
+
+int8_t udf_current_aext(struct inode *inode, lb_addr *bloc, int *extoffset,
+	lb_addr *eloc, uint32_t *elen, struct buffer_head **bh, int inc)
+{
+	int pos, alen;
+	int8_t etype;
+
+	if (!(*bh))
+	{
+		if (!(*bh = udf_tread(inode->i_sb,
+			udf_get_lb_pblock(inode->i_sb, *bloc, 0))))
+		{
+			udf_debug("reading block %d failed!\n",
+				udf_get_lb_pblock(inode->i_sb, *bloc, 0));
+			return -1;
+		}
+	}
+
+	if (!memcmp(&UDF_I_LOCATION(inode), bloc, sizeof(lb_addr)))
+	{
+		if (!(UDF_I_EXTENDED_FE(inode)))
+			pos = sizeof(struct fileEntry) + UDF_I_LENEATTR(inode);
+		else
+			pos = sizeof(struct extendedFileEntry) + UDF_I_LENEATTR(inode);
+		alen = UDF_I_LENALLOC(inode) + pos;
+	}
+	else
+	{
+		struct allocExtDesc *aed = (struct allocExtDesc *)(*bh)->b_data;
+
+		pos = sizeof(struct allocExtDesc);
+		alen = le32_to_cpu(aed->lengthAllocDescs) + pos;
+	}
+
+	if (!(*extoffset))
+		*extoffset = pos;
+
+	switch (UDF_I_ALLOCTYPE(inode))
+	{
+		case ICBTAG_FLAG_AD_SHORT:
+		{
+			short_ad *sad;
+
+			if (!(sad = udf_get_fileshortad((*bh)->b_data, alen, extoffset, inc)))
+				return -1;
+
+			etype = le32_to_cpu(sad->extLength) >> 30;
+			eloc->logicalBlockNum = le32_to_cpu(sad->extPosition);
+			eloc->partitionReferenceNum = UDF_I_LOCATION(inode).partitionReferenceNum;
+			*elen = le32_to_cpu(sad->extLength) & UDF_EXTENT_LENGTH_MASK;
+			break;
+		}
+		case ICBTAG_FLAG_AD_LONG:
+		{
+			long_ad *lad;
+
+			if (!(lad = udf_get_filelongad((*bh)->b_data, alen, extoffset, inc)))
+				return -1;
+
+			etype = le32_to_cpu(lad->extLength) >> 30;
+			*eloc = lelb_to_cpu(lad->extLocation);
+			*elen = le32_to_cpu(lad->extLength) & UDF_EXTENT_LENGTH_MASK;
+			break;
+		}
+		default:
+		{
+			udf_debug("alloc_type = %d unsupported\n", UDF_I_ALLOCTYPE(inode));
+			return -1;
+		}
+	}
+	if (*elen)
+		return etype;
+
+	udf_debug("Empty Extent!\n");
+	if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_SHORT)
+		*extoffset -= sizeof(short_ad);
+	else if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_LONG)
+		*extoffset -= sizeof(long_ad);
+	return -1;
+}
+
+int8_t udf_insert_aext(struct inode *inode, lb_addr bloc, int extoffset,
+	lb_addr neloc, uint32_t nelen, struct buffer_head *bh)
+{
+	lb_addr oeloc;
+	uint32_t oelen;
+	int8_t etype;
+
+	if (!bh)
+	{
+		if (!(bh = udf_tread(inode->i_sb,
+			udf_get_lb_pblock(inode->i_sb, bloc, 0))))
+		{
+			udf_debug("reading block %d failed!\n",
+				udf_get_lb_pblock(inode->i_sb, bloc, 0));
+			return -1;
+		}
+	}
+	else
+		atomic_inc(&bh->b_count);
+
+	while ((etype = udf_next_aext(inode, &bloc, &extoffset, &oeloc, &oelen, &bh, 0)) != -1)
+	{
+		udf_write_aext(inode, bloc, &extoffset, neloc, nelen, bh, 1);
+
+		neloc = oeloc;
+		nelen = (etype << 30) | oelen;
+	}
+	udf_add_aext(inode, &bloc, &extoffset, neloc, nelen, &bh, 1);
+	udf_release_data(bh);
+	return (nelen >> 30);
+}
+
+int8_t udf_delete_aext(struct inode *inode, lb_addr nbloc, int nextoffset,
+	lb_addr eloc, uint32_t elen, struct buffer_head *nbh)
+{
+	struct buffer_head *obh;
+	lb_addr obloc;
+	int oextoffset, adsize;
+	int8_t etype;
+	struct allocExtDesc *aed;
+
+	if (!(nbh))
+	{
+		if (!(nbh = udf_tread(inode->i_sb,
+			udf_get_lb_pblock(inode->i_sb, nbloc, 0))))
+		{
+			udf_debug("reading block %d failed!\n",
+				udf_get_lb_pblock(inode->i_sb, nbloc, 0));
+			return -1;
+		}
+	}
+	else
+		atomic_inc(&nbh->b_count);
+	atomic_inc(&nbh->b_count);
+
+	if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_SHORT)
+		adsize = sizeof(short_ad);
+	else if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_LONG)
+		adsize = sizeof(long_ad);
+	else
+		adsize = 0;
+
+	obh = nbh;
+	obloc = nbloc;
+	oextoffset = nextoffset;
+
+	if (udf_next_aext(inode, &nbloc, &nextoffset, &eloc, &elen, &nbh, 1) == -1)
+		return -1;
+
+	while ((etype = udf_next_aext(inode, &nbloc, &nextoffset, &eloc, &elen, &nbh, 1)) != -1)
+	{
+		udf_write_aext(inode, obloc, &oextoffset, eloc, (etype << 30) | elen, obh, 1);
+		if (memcmp(&nbloc, &obloc, sizeof(lb_addr)))
+		{
+			obloc = nbloc;
+			udf_release_data(obh);
+			atomic_inc(&nbh->b_count);
+			obh = nbh;
+			oextoffset = nextoffset - adsize;
+		}
+	}
+	memset(&eloc, 0x00, sizeof(lb_addr));
+	elen = 0;
+
+	if (memcmp(&nbloc, &obloc, sizeof(lb_addr)))
+	{
+		udf_free_blocks(inode->i_sb, inode, nbloc, 0, 1);
+		udf_write_aext(inode, obloc, &oextoffset, eloc, elen, obh, 1);
+		udf_write_aext(inode, obloc, &oextoffset, eloc, elen, obh, 1);
+		if (!memcmp(&UDF_I_LOCATION(inode), &obloc, sizeof(lb_addr)))
+		{
+			UDF_I_LENALLOC(inode) -= (adsize * 2);
+			mark_inode_dirty(inode);
+		}
+		else
+		{
+			aed = (struct allocExtDesc *)(obh)->b_data;
+			aed->lengthAllocDescs =
+				cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) - (2*adsize));
+			if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) || UDF_SB_UDFREV(inode->i_sb) >= 0x0201)
+				udf_update_tag((obh)->b_data, oextoffset - (2*adsize));
+			else
+				udf_update_tag((obh)->b_data, sizeof(struct allocExtDesc));
+			mark_buffer_dirty_inode(obh, inode);
+		}
+	}
+	else
+	{
+		udf_write_aext(inode, obloc, &oextoffset, eloc, elen, obh, 1);
+		if (!memcmp(&UDF_I_LOCATION(inode), &obloc, sizeof(lb_addr)))
+		{
+			UDF_I_LENALLOC(inode) -= adsize;
+			mark_inode_dirty(inode);
+		}
+		else
+		{
+			aed = (struct allocExtDesc *)(obh)->b_data;
+			aed->lengthAllocDescs =
+				cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) - adsize);
+			if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) || UDF_SB_UDFREV(inode->i_sb) >= 0x0201)
+				udf_update_tag((obh)->b_data, oextoffset - adsize);
+			else
+				udf_update_tag((obh)->b_data, sizeof(struct allocExtDesc));
+			mark_buffer_dirty_inode(obh, inode);
+		}
+	}
+	
+	udf_release_data(nbh);
+	udf_release_data(obh);
+	return (elen >> 30);
+}
+
+int8_t inode_bmap(struct inode *inode, int block, lb_addr *bloc, uint32_t *extoffset,
+	lb_addr *eloc, uint32_t *elen, uint32_t *offset, struct buffer_head **bh)
+{
+	uint64_t lbcount = 0, bcount = (uint64_t)block << inode->i_sb->s_blocksize_bits;
+	int8_t etype;
+
+	if (block < 0)
+	{
+		printk(KERN_ERR "udf: inode_bmap: block < 0\n");
+		return -1;
+	}
+	if (!inode)
+	{
+		printk(KERN_ERR "udf: inode_bmap: NULL inode\n");
+		return -1;
+	}
+
+	*extoffset = 0;
+	*elen = 0;
+	*bloc = UDF_I_LOCATION(inode);
+
+	do
+	{
+		if ((etype = udf_next_aext(inode, bloc, extoffset, eloc, elen, bh, 1)) == -1)
+		{
+			*offset = bcount - lbcount;
+			UDF_I_LENEXTENTS(inode) = lbcount;
+			return -1;
+		}
+		lbcount += *elen;
+	} while (lbcount <= bcount);
+
+	*offset = bcount + *elen - lbcount;
+
+	return etype;
+}
+
+long udf_block_map(struct inode *inode, long block)
+{
+	lb_addr eloc, bloc;
+	uint32_t offset, extoffset, elen;
+	struct buffer_head *bh = NULL;
+	int ret;
+
+	lock_kernel();
+
+	if (inode_bmap(inode, block, &bloc, &extoffset, &eloc, &elen, &offset, &bh) == (EXT_RECORDED_ALLOCATED >> 30))
+		ret = udf_get_lb_pblock(inode->i_sb, eloc, offset >> inode->i_sb->s_blocksize_bits);
+	else
+		ret = 0;
+
+	unlock_kernel();
+
+	if (bh)
+		udf_release_data(bh);
+
+	if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_VARCONV))
+		return udf_fixed_to_variable(ret);
+	else
+		return ret;
+}
diff --git a/fs/udf/lowlevel.c b/fs/udf/lowlevel.c
new file mode 100644
index 00000000000000..b89a322820ef3e
--- /dev/null
+++ b/fs/udf/lowlevel.c
@@ -0,0 +1,91 @@
+/*
+ * lowlevel.c
+ *
+ * PURPOSE
+ *  Low Level Device Routines for the UDF filesystem
+ *
+ * CONTACTS
+ *	E-mail regarding any portion of the Linux UDF file system should be
+ *	directed to the development team mailing list (run by majordomo):
+ *		linux_udf@hpesjro.fc.hp.com
+ *
+ * COPYRIGHT
+ *	This file is distributed under the terms of the GNU General Public
+ *	License (GPL). Copies of the GPL can be obtained from:
+ *		ftp://prep.ai.mit.edu/pub/gnu/GPL
+ *	Each contributing author retains all rights to their own work.
+ *
+ *  (C) 1999-2001 Ben Fennema
+ *
+ * HISTORY
+ *
+ *  03/26/99 blf  Created.
+ */
+
+#include "udfdecl.h"
+
+#include <linux/blkdev.h>
+#include <linux/cdrom.h>
+#include <asm/uaccess.h>
+#include <scsi/scsi.h>
+
+typedef struct scsi_device Scsi_Device;
+typedef struct scsi_cmnd   Scsi_Cmnd;
+
+#include <scsi/scsi_ioctl.h>
+
+#include <linux/udf_fs.h>
+#include "udf_sb.h"
+
+unsigned int 
+udf_get_last_session(struct super_block *sb)
+{
+	struct cdrom_multisession ms_info;
+	unsigned int vol_desc_start;
+	struct block_device *bdev = sb->s_bdev;
+	int i;
+
+	vol_desc_start=0;
+	ms_info.addr_format=CDROM_LBA;
+	i = ioctl_by_bdev(bdev, CDROMMULTISESSION, (unsigned long) &ms_info);
+
+#define WE_OBEY_THE_WRITTEN_STANDARDS 1
+
+	if (i == 0)
+	{
+		udf_debug("XA disk: %s, vol_desc_start=%d\n",
+			(ms_info.xa_flag ? "yes" : "no"), ms_info.addr.lba);
+#if WE_OBEY_THE_WRITTEN_STANDARDS
+		if (ms_info.xa_flag) /* necessary for a valid ms_info.addr */
+#endif
+			vol_desc_start = ms_info.addr.lba;
+	}
+	else
+	{
+		udf_debug("CDROMMULTISESSION not supported: rc=%d\n", i);
+	}
+	return vol_desc_start;
+}
+
+unsigned long
+udf_get_last_block(struct super_block *sb)
+{
+	struct block_device *bdev = sb->s_bdev;
+	int ret;
+	unsigned long lblock = 0;
+
+	ret = ioctl_by_bdev(bdev, CDROM_LAST_WRITTEN, (unsigned long) &lblock);
+
+	if (ret) /* Hard Disk */
+	{
+		ret = ioctl_by_bdev(bdev, BLKGETSIZE, (unsigned long) &lblock);
+
+		if (!ret && lblock != 0x7FFFFFFF)
+			lblock = ((512 * lblock) / sb->s_blocksize);
+	}
+
+	if (!ret && lblock)
+		return lblock - 1;
+	else
+		return 0;
+}
diff --git a/fs/udf/misc.c b/fs/udf/misc.c
new file mode 100644
index 00000000000000..6a7751b0e5e2b2
--- /dev/null
+++ b/fs/udf/misc.c
@@ -0,0 +1,362 @@
+/*
+ * misc.c
+ *
+ * PURPOSE
+ *	Miscellaneous routines for the OSTA-UDF(tm) filesystem.
+ *
+ * CONTACTS
+ *	E-mail regarding any portion of the Linux UDF file system should be
+ *	directed to the development team mailing list (run by majordomo):
+ *		linux_udf@hpesjro.fc.hp.com
+ *
+ * COPYRIGHT
+ *	This file is distributed under the terms of the GNU General Public
+ *	License (GPL). Copies of the GPL can be obtained from:
+ *		ftp://prep.ai.mit.edu/pub/gnu/GPL
+ *	Each contributing author retains all rights to their own work.
+ *
+ *  (C) 1998 Dave Boynton
+ *  (C) 1998-2001 Ben Fennema
+ *  (C) 1999-2000 Stelias Computing Inc
+ *
+ * HISTORY
+ *
+ *  04/19/99 blf  partial support for reading/writing specific EA's
+ */
+
+#include "udfdecl.h"
+
+#include <linux/fs.h>
+#include <linux/string.h>
+#include <linux/udf_fs.h>
+
+#include "udf_i.h"
+#include "udf_sb.h"
+
+uint32_t
+udf64_low32(uint64_t indat)
+{
+	return indat & 0x00000000FFFFFFFFULL;
+}
+
+uint32_t
+udf64_high32(uint64_t indat)
+{
+	return indat >> 32;
+}
+
+extern struct buffer_head *
+udf_tgetblk(struct super_block *sb, int block)
+{
+	if (UDF_QUERY_FLAG(sb, UDF_FLAG_VARCONV))
+		return sb_getblk(sb, udf_fixed_to_variable(block));
+	else
+		return sb_getblk(sb, block);
+}
+
+extern struct buffer_head *
+udf_tread(struct super_block *sb, int block)
+{
+	if (UDF_QUERY_FLAG(sb, UDF_FLAG_VARCONV))
+		return sb_bread(sb, udf_fixed_to_variable(block));
+	else
+		return sb_bread(sb, block);
+}
+
+extern struct genericFormat *
+udf_add_extendedattr(struct inode * inode, uint32_t size, uint32_t type,
+	uint8_t loc, struct buffer_head **bh)
+{
+	uint8_t *ea = NULL, *ad = NULL;
+	long_ad eaicb;
+	int offset;
+
+	*bh = udf_tread(inode->i_sb, inode->i_ino);
+
+	if (UDF_I_EXTENDED_FE(inode) == 0)
+	{
+		struct fileEntry *fe;
+
+		fe = (struct fileEntry *)(*bh)->b_data;
+		eaicb = lela_to_cpu(fe->extendedAttrICB);
+		offset = sizeof(struct fileEntry);
+	}
+	else
+	{
+		struct extendedFileEntry *efe;
+
+		efe = (struct extendedFileEntry *)(*bh)->b_data;
+		eaicb = lela_to_cpu(efe->extendedAttrICB);
+		offset = sizeof(struct extendedFileEntry);
+	}
+
+	ea = &(*bh)->b_data[offset];
+	if (UDF_I_LENEATTR(inode))
+		offset += UDF_I_LENEATTR(inode);
+	else
+		size += sizeof(struct extendedAttrHeaderDesc);
+
+	ad = &(*bh)->b_data[offset];
+	if (UDF_I_LENALLOC(inode))
+		offset += UDF_I_LENALLOC(inode);
+
+	offset = inode->i_sb->s_blocksize - offset;
+
+	/* TODO - Check for FreeEASpace */
+
+	if (loc & 0x01 && offset >= size)
+	{
+		struct extendedAttrHeaderDesc *eahd;
+		eahd = (struct extendedAttrHeaderDesc *)ea;
+
+		if (UDF_I_LENALLOC(inode))
+		{
+			memmove(&ad[size], ad, UDF_I_LENALLOC(inode));
+		}
+
+		if (UDF_I_LENEATTR(inode))
+		{
+			/* check checksum/crc */
+			if (le16_to_cpu(eahd->descTag.tagIdent) != TAG_IDENT_EAHD ||
+				le32_to_cpu(eahd->descTag.tagLocation) != UDF_I_LOCATION(inode).logicalBlockNum)
+			{
+				udf_release_data(*bh);
+				return NULL;
+			}
+		}
+		else
+		{
+			size -= sizeof(struct extendedAttrHeaderDesc);
+			UDF_I_LENEATTR(inode) += sizeof(struct extendedAttrHeaderDesc);
+			eahd->descTag.tagIdent = cpu_to_le16(TAG_IDENT_EAHD);
+			eahd->descTag.descVersion = cpu_to_le16(2);
+			eahd->descTag.tagSerialNum = cpu_to_le16(1);
+			eahd->descTag.tagLocation = cpu_to_le32(UDF_I_LOCATION(inode).logicalBlockNum);
+			eahd->impAttrLocation = cpu_to_le32(0xFFFFFFFF);
+			eahd->appAttrLocation = cpu_to_le32(0xFFFFFFFF);
+		}
+
+		offset = UDF_I_LENEATTR(inode);
+		if (type < 2048)
+		{
+			if (le32_to_cpu(eahd->appAttrLocation) < UDF_I_LENEATTR(inode))
+			{
+				uint32_t aal = le32_to_cpu(eahd->appAttrLocation);
+				memmove(&ea[offset - aal + size],
+					&ea[aal], offset - aal);
+				offset -= aal;
+				eahd->appAttrLocation = cpu_to_le32(aal + size);
+			}
+			if (le32_to_cpu(eahd->impAttrLocation) < UDF_I_LENEATTR(inode))
+			{
+				uint32_t ial = le32_to_cpu(eahd->impAttrLocation);
+				memmove(&ea[offset - ial + size],
+					&ea[ial], offset - ial);
+				offset -= ial;
+				eahd->impAttrLocation = cpu_to_le32(ial + size);
+			}
+		}
+		else if (type < 65536)
+		{
+			if (le32_to_cpu(eahd->appAttrLocation) < UDF_I_LENEATTR(inode))
+			{
+				uint32_t aal = le32_to_cpu(eahd->appAttrLocation);
+				memmove(&ea[offset - aal + size],
+					&ea[aal], offset - aal);
+				offset -= aal;
+				eahd->appAttrLocation = cpu_to_le32(aal + size);
+			}
+		}
+		/* rewrite CRC + checksum of eahd */
+		UDF_I_LENEATTR(inode) += size;
+		return (struct genericFormat *)&ea[offset];
+	}
+	if (loc & 0x02)
+	{
+	}
+	udf_release_data(*bh);
+	return NULL;
+}
+
+extern struct genericFormat *
+udf_get_extendedattr(struct inode * inode, uint32_t type, uint8_t subtype,
+	struct buffer_head **bh)
+{
+	struct genericFormat *gaf;
+	uint8_t *ea = NULL;
+	long_ad eaicb;
+	uint32_t offset;
+
+	*bh = udf_tread(inode->i_sb, inode->i_ino);
+
+	if (UDF_I_EXTENDED_FE(inode) == 0)
+	{
+		struct fileEntry *fe;
+
+		fe = (struct fileEntry *)(*bh)->b_data;
+		eaicb = lela_to_cpu(fe->extendedAttrICB);
+		if (UDF_I_LENEATTR(inode))
+			ea = fe->extendedAttr;
+	}
+	else
+	{
+		struct extendedFileEntry *efe;
+
+		efe = (struct extendedFileEntry *)(*bh)->b_data;
+		eaicb = lela_to_cpu(efe->extendedAttrICB);
+		if (UDF_I_LENEATTR(inode))
+			ea = efe->extendedAttr;
+	}
+
+	if (UDF_I_LENEATTR(inode))
+	{
+		struct extendedAttrHeaderDesc *eahd;
+		eahd = (struct extendedAttrHeaderDesc *)ea;
+
+		/* check checksum/crc */
+		if (le16_to_cpu(eahd->descTag.tagIdent) != TAG_IDENT_EAHD ||
+			le32_to_cpu(eahd->descTag.tagLocation) != UDF_I_LOCATION(inode).logicalBlockNum)
+		{
+			udf_release_data(*bh);
+			return NULL;
+		}
+	
+		if (type < 2048)
+			offset = sizeof(struct extendedAttrHeaderDesc);
+		else if (type < 65536)
+			offset = le32_to_cpu(eahd->impAttrLocation);
+		else
+			offset = le32_to_cpu(eahd->appAttrLocation);
+
+		while (offset < UDF_I_LENEATTR(inode))
+		{
+			gaf = (struct genericFormat *)&ea[offset];
+			if (le32_to_cpu(gaf->attrType) == type && gaf->attrSubtype == subtype)
+				return gaf;
+			else
+				offset += le32_to_cpu(gaf->attrLength);
+		}
+	}
+
+	udf_release_data(*bh);
+	if (eaicb.extLength)
+	{
+		/* TODO */
+	}
+	return NULL;
+}
+
+/*
+ * udf_read_tagged
+ *
+ * PURPOSE
+ *	Read the first block of a tagged descriptor.
+ *
+ * HISTORY
+ *	July 1, 1997 - Andrew E. Mileski
+ *	Written, tested, and released.
+ */
+extern struct buffer_head *
+udf_read_tagged(struct super_block *sb, uint32_t block, uint32_t location, uint16_t *ident)
+{
+	tag *tag_p;
+	struct buffer_head *bh = NULL;
+	register uint8_t checksum;
+	register int i;
+
+	/* Read the block */
+	if (block == 0xFFFFFFFF)
+		return NULL;
+
+	bh = udf_tread(sb, block);
+	if (!bh)
+	{
+		udf_debug("block=%d, location=%d: read failed\n", block, location);
+		return NULL;
+	}
+
+	tag_p = (tag *)(bh->b_data);
+
+	*ident = le16_to_cpu(tag_p->tagIdent);
+
+	if ( location != le32_to_cpu(tag_p->tagLocation) )
+	{
+		udf_debug("location mismatch block %u, tag %u != %u\n",
+			block, le32_to_cpu(tag_p->tagLocation), location);
+		goto error_out;
+	}
+	
+	/* Verify the tag checksum */
+	checksum = 0U;
+	for (i = 0; i < 4; i++)
+		checksum += (uint8_t)(bh->b_data[i]);
+	for (i = 5; i < 16; i++)
+		checksum += (uint8_t)(bh->b_data[i]);
+	if (checksum != tag_p->tagChecksum) {
+		printk(KERN_ERR "udf: tag checksum failed block %d\n", block);
+		goto error_out;
+	}
+
+	/* Verify the tag version */
+	if (le16_to_cpu(tag_p->descVersion) != 0x0002U &&
+		le16_to_cpu(tag_p->descVersion) != 0x0003U)
+	{
+		udf_debug("tag version 0x%04x != 0x0002 || 0x0003 block %d\n",
+			le16_to_cpu(tag_p->descVersion), block);
+		goto error_out;
+	}
+
+	/* Verify the descriptor CRC */
+	if (le16_to_cpu(tag_p->descCRCLength) + sizeof(tag) > sb->s_blocksize ||
+		le16_to_cpu(tag_p->descCRC) == udf_crc(bh->b_data + sizeof(tag),
+			le16_to_cpu(tag_p->descCRCLength), 0))
+	{
+		return bh;
+	}
+	udf_debug("Crc failure block %d: crc = %d, crclen = %d\n",
+		block, le16_to_cpu(tag_p->descCRC), le16_to_cpu(tag_p->descCRCLength));
+
+error_out:
+	brelse(bh);
+	return NULL;
+}
+
+extern struct buffer_head *
+udf_read_ptagged(struct super_block *sb, lb_addr loc, uint32_t offset, uint16_t *ident)
+{
+	return udf_read_tagged(sb, udf_get_lb_pblock(sb, loc, offset),
+		loc.logicalBlockNum + offset, ident);
+}
+
+void udf_release_data(struct buffer_head *bh)
+{
+	if (bh)
+		brelse(bh);
+}
+
+void udf_update_tag(char *data, int length)
+{
+	tag *tptr = (tag *)data;
+	int i;
+
+	length -= sizeof(tag);
+
+	tptr->tagChecksum = 0;
+	tptr->descCRCLength = le16_to_cpu(length);
+	tptr->descCRC = le16_to_cpu(udf_crc(data + sizeof(tag), length, 0));
+
+	for (i=0; i<16; i++)
+		if (i != 4)
+			tptr->tagChecksum += (uint8_t)(data[i]);
+}
+
+void udf_new_tag(char *data, uint16_t ident, uint16_t version, uint16_t snum,
+	uint32_t loc, int length)
+{
+	tag *tptr = (tag *)data;
+	tptr->tagIdent = le16_to_cpu(ident);
+	tptr->descVersion = le16_to_cpu(version);
+	tptr->tagSerialNum = le16_to_cpu(snum);
+	tptr->tagLocation = le32_to_cpu(loc);
+	udf_update_tag(data, length);
+}
diff --git a/fs/udf/namei.c b/fs/udf/namei.c
new file mode 100644
index 00000000000000..f7d959789daf8d
--- /dev/null
+++ b/fs/udf/namei.c
@@ -0,0 +1,1300 @@
+/*
+ * namei.c
+ *
+ * PURPOSE
+ *      Inode name handling routines for the OSTA-UDF(tm) filesystem.
+ *
+ * CONTACTS
+ *      E-mail regarding any portion of the Linux UDF file system should be
+ *      directed to the development team mailing list (run by majordomo):
+ *              linux_udf@hpesjro.fc.hp.com
+ *
+ * COPYRIGHT
+ *      This file is distributed under the terms of the GNU General Public
+ *      License (GPL). Copies of the GPL can be obtained from:
+ *              ftp://prep.ai.mit.edu/pub/gnu/GPL
+ *      Each contributing author retains all rights to their own work.
+ *
+ *  (C) 1998-2001 Ben Fennema
+ *  (C) 1999-2000 Stelias Computing Inc
+ *
+ * HISTORY
+ *
+ *  12/12/98 blf  Created. Split out the lookup code from dir.c
+ *  04/19/99 blf  link, mknod, symlink support
+ */
+
+#include "udfdecl.h"
+
+#include "udf_i.h"
+#include "udf_sb.h"
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/quotaops.h>
+#include <linux/locks.h>
+#include <linux/smp_lock.h>
+
+static inline int udf_match(int len, const char * const name, struct qstr *qs)
+{
+	if (len != qs->len)
+		return 0;
+	return !memcmp(name, qs->name, len);
+}
+
+int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi,
+	struct fileIdentDesc *sfi, struct udf_fileident_bh *fibh,
+	uint8_t *impuse, uint8_t *fileident)
+{
+	uint16_t crclen = fibh->eoffset - fibh->soffset - sizeof(tag);
+	uint16_t crc;
+	uint8_t checksum = 0;
+	int i;
+	int offset;
+	uint16_t liu = le16_to_cpu(cfi->lengthOfImpUse);
+	uint8_t lfi = cfi->lengthFileIdent;
+	int padlen = fibh->eoffset - fibh->soffset - liu - lfi -
+		sizeof(struct fileIdentDesc);
+
+	offset = fibh->soffset + sizeof(struct fileIdentDesc);
+
+	if (impuse)
+	{
+		if (offset + liu < 0)
+			memcpy((uint8_t *)sfi->impUse, impuse, liu);
+		else if (offset >= 0)
+			memcpy(fibh->ebh->b_data + offset, impuse, liu);
+		else
+		{
+			memcpy((uint8_t *)sfi->impUse, impuse, -offset);
+			memcpy(fibh->ebh->b_data, impuse - offset, liu + offset);
+		}
+	}
+
+	offset += liu;
+
+	if (fileident)
+	{
+		if (offset + lfi < 0)
+			memcpy((uint8_t *)sfi->fileIdent + liu, fileident, lfi);
+		else if (offset >= 0)
+			memcpy(fibh->ebh->b_data + offset, fileident, lfi);
+		else
+		{
+			memcpy((uint8_t *)sfi->fileIdent + liu, fileident, -offset);
+			memcpy(fibh->ebh->b_data, fileident - offset, lfi + offset);
+		}
+	}
+
+	offset += lfi;
+
+	if (offset + padlen < 0)
+		memset((uint8_t *)sfi->padding + liu + lfi, 0x00, padlen);
+	else if (offset >= 0)
+		memset(fibh->ebh->b_data + offset, 0x00, padlen);
+	else
+	{
+		memset((uint8_t *)sfi->padding + liu + lfi, 0x00, -offset);
+		memset(fibh->ebh->b_data, 0x00, padlen + offset);
+	}
+
+	crc = udf_crc((uint8_t *)cfi + sizeof(tag), sizeof(struct fileIdentDesc) -
+		sizeof(tag), 0);
+
+	if (fibh->sbh == fibh->ebh)
+		crc = udf_crc((uint8_t *)sfi->impUse,
+			crclen + sizeof(tag) - sizeof(struct fileIdentDesc), crc);
+	else if (sizeof(struct fileIdentDesc) >= -fibh->soffset)
+		crc = udf_crc(fibh->ebh->b_data + sizeof(struct fileIdentDesc) + fibh->soffset,
+			crclen + sizeof(tag) - sizeof(struct fileIdentDesc), crc);
+	else
+	{
+		crc = udf_crc((uint8_t *)sfi->impUse,
+			-fibh->soffset - sizeof(struct fileIdentDesc), crc);
+		crc = udf_crc(fibh->ebh->b_data, fibh->eoffset, crc);
+	}
+
+	cfi->descTag.descCRC = cpu_to_le32(crc);
+	cfi->descTag.descCRCLength = cpu_to_le16(crclen);
+
+	for (i=0; i<16; i++)
+		if (i != 4)
+			checksum += ((uint8_t *)&cfi->descTag)[i];
+
+	cfi->descTag.tagChecksum = checksum;
+	if (sizeof(struct fileIdentDesc) <= -fibh->soffset)
+		memcpy((uint8_t *)sfi, (uint8_t *)cfi, sizeof(struct fileIdentDesc));
+	else
+	{
+		memcpy((uint8_t *)sfi, (uint8_t *)cfi, -fibh->soffset);
+		memcpy(fibh->ebh->b_data, (uint8_t *)cfi - fibh->soffset,
+			sizeof(struct fileIdentDesc) + fibh->soffset);
+	}
+
+	if (fibh->sbh != fibh->ebh)
+		mark_buffer_dirty_inode(fibh->ebh, inode);
+	mark_buffer_dirty_inode(fibh->sbh, inode);
+	return 0;
+}
+
+static struct fileIdentDesc *
+udf_find_entry(struct inode *dir, struct dentry *dentry,
+	struct udf_fileident_bh *fibh,
+	struct fileIdentDesc *cfi)
+{
+	struct fileIdentDesc *fi=NULL;
+	loff_t f_pos;
+	int block, flen;
+	char fname[255];
+	char *nameptr;
+	uint8_t lfi;
+	uint16_t liu;
+	loff_t size = (udf_ext0_offset(dir) + dir->i_size) >> 2;
+	lb_addr bloc, eloc;
+	uint32_t extoffset, elen, offset;
+	struct buffer_head *bh = NULL;
+
+	if (!dir)
+		return NULL;
+
+	f_pos = (udf_ext0_offset(dir) >> 2);
+
+	fibh->soffset = fibh->eoffset = (f_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2;
+	if (inode_bmap(dir, f_pos >> (dir->i_sb->s_blocksize_bits - 2),
+		&bloc, &extoffset, &eloc, &elen, &offset, &bh) == (EXT_RECORDED_ALLOCATED >> 30))
+	{
+		offset >>= dir->i_sb->s_blocksize_bits;
+		block = udf_get_lb_pblock(dir->i_sb, eloc, offset);
+		if ((++offset << dir->i_sb->s_blocksize_bits) < elen)
+		{
+			if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_SHORT)
+				extoffset -= sizeof(short_ad);
+			else if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_LONG)
+				extoffset -= sizeof(long_ad);
+		}
+		else
+			offset = 0;
+	}
+	else
+	{
+		udf_release_data(bh);
+		return NULL;
+	}
+
+	if (!(fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block)))
+	{
+		udf_release_data(bh);
+		return NULL;
+	}
+
+	while ( (f_pos < size) )
+	{
+		fi = udf_fileident_read(dir, &f_pos, fibh, cfi, &bloc, &extoffset, &eloc, &elen, &offset, &bh);
+
+		if (!fi)
+		{
+			if (fibh->sbh != fibh->ebh)
+				udf_release_data(fibh->ebh);
+			udf_release_data(fibh->sbh);
+			udf_release_data(bh);
+			return NULL;
+		}
+
+		liu = le16_to_cpu(cfi->lengthOfImpUse);
+		lfi = cfi->lengthFileIdent;
+
+		if (fibh->sbh == fibh->ebh)
+		{
+			nameptr = fi->fileIdent + liu;
+		}
+		else
+		{
+			int poffset;	/* Unpaded ending offset */
+
+			poffset = fibh->soffset + sizeof(struct fileIdentDesc) + liu + lfi;
+
+			if (poffset >= lfi)
+				nameptr = (uint8_t *)(fibh->ebh->b_data + poffset - lfi);
+			else
+			{
+				nameptr = fname;
+				memcpy(nameptr, fi->fileIdent + liu, lfi - poffset);
+				memcpy(nameptr + lfi - poffset, fibh->ebh->b_data, poffset);
+			}
+		}
+
+		if ( (cfi->fileCharacteristics & FID_FILE_CHAR_DELETED) != 0 )
+		{
+			if ( !UDF_QUERY_FLAG(dir->i_sb, UDF_FLAG_UNDELETE) )
+				continue;
+		}
+	    
+		if ( (cfi->fileCharacteristics & FID_FILE_CHAR_HIDDEN) != 0 )
+		{
+			if ( !UDF_QUERY_FLAG(dir->i_sb, UDF_FLAG_UNHIDE) )
+				continue;
+		}
+
+		if (!lfi)
+			continue;
+
+		if ((flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi)))
+		{
+			if (udf_match(flen, fname, &(dentry->d_name)))
+			{
+				udf_release_data(bh);
+				return fi;
+			}
+		}
+	}
+	if (fibh->sbh != fibh->ebh)
+		udf_release_data(fibh->ebh);
+	udf_release_data(fibh->sbh);
+	udf_release_data(bh);
+	return NULL;
+}
+
+/*
+ * udf_lookup
+ *
+ * PURPOSE
+ *	Look-up the inode for a given name.
+ *
+ * DESCRIPTION
+ *	Required - lookup_dentry() will return -ENOTDIR if this routine is not
+ *	available for a directory. The filesystem is useless if this routine is
+ *	not available for at least the filesystem's root directory.
+ *
+ *	This routine is passed an incomplete dentry - it must be completed by
+ *	calling d_add(dentry, inode). If the name does not exist, then the
+ *	specified inode must be set to null. An error should only be returned
+ *	when the lookup fails for a reason other than the name not existing.
+ *	Note that the directory inode semaphore is held during the call.
+ *
+ *	Refer to lookup_dentry() in fs/namei.c
+ *	lookup_dentry() -> lookup() -> real_lookup() -> .
+ *
+ * PRE-CONDITIONS
+ *	dir			Pointer to inode of parent directory.
+ *	dentry			Pointer to dentry to complete.
+ *
+ * POST-CONDITIONS
+ *	<return>		Zero on success.
+ *
+ * HISTORY
+ *	July 1, 1997 - Andrew E. Mileski
+ *	Written, tested, and released.
+ */
+
+static struct dentry *
+udf_lookup(struct inode *dir, struct dentry *dentry)
+{
+	struct inode *inode = NULL;
+	struct fileIdentDesc cfi, *fi;
+	struct udf_fileident_bh fibh;
+
+	if (dentry->d_name.len > UDF_NAME_LEN)
+		return ERR_PTR(-ENAMETOOLONG);
+
+#ifdef UDF_RECOVERY
+	/* temporary shorthand for specifying files by inode number */
+	if (!strncmp(dentry->d_name.name, ".B=", 3) )
+	{
+		lb_addr lb = { 0, simple_strtoul(dentry->d_name.name+3, NULL, 0) };
+		inode = udf_iget(dir->i_sb, lb);
+		if (!inode)
+			return ERR_PTR(-EACCES);
+	}
+	else
+#endif /* UDF_RECOVERY */
+
+	if ((fi = udf_find_entry(dir, dentry, &fibh, &cfi)))
+	{
+		if (fibh.sbh != fibh.ebh)
+			udf_release_data(fibh.ebh);
+		udf_release_data(fibh.sbh);
+
+		inode = udf_iget(dir->i_sb, lelb_to_cpu(cfi.icb.extLocation));
+		if ( !inode )
+			return ERR_PTR(-EACCES);
+	}
+	d_add(dentry, inode);
+	return NULL;
+}
+
+static struct fileIdentDesc *
+udf_add_entry(struct inode *dir, struct dentry *dentry,
+	struct udf_fileident_bh *fibh,
+	struct fileIdentDesc *cfi, int *err)
+{
+	struct super_block *sb;
+	struct fileIdentDesc *fi=NULL;
+	struct ustr unifilename;
+	char name[UDF_NAME_LEN], fname[UDF_NAME_LEN];
+	int namelen;
+	loff_t f_pos;
+	int flen;
+	char *nameptr;
+	loff_t size = (udf_ext0_offset(dir) + dir->i_size) >> 2;
+	int nfidlen;
+	uint8_t lfi;
+	uint16_t liu;
+	int block;
+	lb_addr bloc, eloc;
+	uint32_t extoffset, elen, offset;
+	struct buffer_head *bh = NULL;
+
+	sb = dir->i_sb;
+
+	if (dentry)
+	{
+		if (!dentry->d_name.len)
+		{
+			*err = -EINVAL;
+			return NULL;
+		}
+
+		if ( !(udf_char_to_ustr(&unifilename, dentry->d_name.name, dentry->d_name.len)) )
+		{
+			*err = -ENAMETOOLONG;
+			return NULL;
+		}
+
+		if (UDF_QUERY_FLAG(sb, UDF_FLAG_UTF8))
+		{
+			if ( !(namelen = udf_UTF8toCS0(name, &unifilename, UDF_NAME_LEN)) )
+			{
+				*err = -ENAMETOOLONG;
+				return NULL;
+			}
+		}
+		else if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP))
+		{
+			if ( !(namelen = udf_NLStoCS0(UDF_SB(sb)->s_nls_map, name, &unifilename, UDF_NAME_LEN)) )
+			{
+				*err = -ENAMETOOLONG;
+				return NULL;
+			}
+		}
+		else
+			return NULL;
+	}
+	else
+		namelen = 0;
+
+	nfidlen = (sizeof(struct fileIdentDesc) + namelen + 3) & ~3;
+
+	f_pos = (udf_ext0_offset(dir) >> 2);
+
+	fibh->soffset = fibh->eoffset = (f_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2;
+	if (inode_bmap(dir, f_pos >> (dir->i_sb->s_blocksize_bits - 2),
+		&bloc, &extoffset, &eloc, &elen, &offset, &bh) == (EXT_RECORDED_ALLOCATED >> 30))
+	{
+		offset >>= dir->i_sb->s_blocksize_bits;
+		block = udf_get_lb_pblock(dir->i_sb, eloc, offset);
+		if ((++offset << dir->i_sb->s_blocksize_bits) < elen)
+		{
+			if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_SHORT)
+				extoffset -= sizeof(short_ad);
+			else if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_LONG)
+				extoffset -= sizeof(long_ad);
+		}
+		else
+			offset = 0;
+
+		if (!(fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block)))
+		{
+			udf_release_data(bh);
+			*err = -EIO;
+			return NULL;
+		}
+	
+		block = UDF_I_LOCATION(dir).logicalBlockNum;
+	
+		while ( (f_pos < size) )
+		{
+			fi = udf_fileident_read(dir, &f_pos, fibh, cfi, &bloc, &extoffset, &eloc, &elen, &offset, &bh);
+	
+			if (!fi)
+			{
+				if (fibh->sbh != fibh->ebh)
+					udf_release_data(fibh->ebh);
+				udf_release_data(fibh->sbh);
+				udf_release_data(bh);
+				*err = -EIO;
+				return NULL;
+			}
+	
+			liu = le16_to_cpu(cfi->lengthOfImpUse);
+			lfi = cfi->lengthFileIdent;
+	
+			if (fibh->sbh == fibh->ebh)
+				nameptr = fi->fileIdent + liu;
+			else
+			{
+				int poffset;	/* Unpaded ending offset */
+	
+				poffset = fibh->soffset + sizeof(struct fileIdentDesc) + liu + lfi;
+	
+				if (poffset >= lfi)
+					nameptr = (char *)(fibh->ebh->b_data + poffset - lfi);
+				else
+				{
+					nameptr = fname;
+					memcpy(nameptr, fi->fileIdent + liu, lfi - poffset);
+					memcpy(nameptr + lfi - poffset, fibh->ebh->b_data, poffset);
+				}
+			}
+	
+			if ( (cfi->fileCharacteristics & FID_FILE_CHAR_DELETED) != 0 )
+			{
+				if (((sizeof(struct fileIdentDesc) + liu + lfi + 3) & ~3) == nfidlen)
+				{
+					udf_release_data(bh);
+					cfi->descTag.tagSerialNum = cpu_to_le16(1);
+					cfi->fileVersionNum = cpu_to_le16(1);
+					cfi->fileCharacteristics = 0;
+					cfi->lengthFileIdent = namelen;
+					cfi->lengthOfImpUse = cpu_to_le16(0);
+					if (!udf_write_fi(dir, cfi, fi, fibh, NULL, name))
+						return fi;
+					else
+					{
+						*err = -EIO;
+						return NULL;
+					}
+				}
+			}
+
+			if (!lfi || !dentry)
+				continue;
+
+			if ((flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi)) &&
+				udf_match(flen, fname, &(dentry->d_name)))
+			{
+				if (fibh->sbh != fibh->ebh)
+					udf_release_data(fibh->ebh);
+				udf_release_data(fibh->sbh);
+				udf_release_data(bh);
+				*err = -EEXIST;
+				return NULL;
+			}
+		}
+	}
+	else
+	{
+		block = udf_get_lb_pblock(dir->i_sb, UDF_I_LOCATION(dir), 0);
+		if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB)
+		{
+			fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block);
+			fibh->soffset = fibh->eoffset = udf_file_entry_alloc_offset(dir);
+		}
+		else
+		{
+			fibh->sbh = fibh->ebh = NULL;
+			fibh->soffset = fibh->eoffset = sb->s_blocksize;
+		}
+	}
+
+	f_pos += nfidlen;
+
+	if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB &&
+		sb->s_blocksize - fibh->eoffset < nfidlen)
+	{
+		udf_release_data(bh);
+		bh = NULL;
+		fibh->soffset -= udf_ext0_offset(dir);
+		fibh->eoffset -= udf_ext0_offset(dir);
+		f_pos -= (udf_ext0_offset(dir) >> 2);
+		if (fibh->sbh != fibh->ebh)
+			udf_release_data(fibh->ebh);
+		udf_release_data(fibh->sbh);
+		if (!(fibh->sbh = fibh->ebh = udf_expand_dir_adinicb(dir, &block, err)))
+			return NULL;
+		bloc = UDF_I_LOCATION(dir);
+		eloc.logicalBlockNum = block;
+		eloc.partitionReferenceNum = UDF_I_LOCATION(dir).partitionReferenceNum;
+		elen = dir->i_sb->s_blocksize;
+		extoffset = udf_file_entry_alloc_offset(dir);
+		if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_SHORT)
+			extoffset += sizeof(short_ad);
+		else if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_LONG)
+			extoffset += sizeof(long_ad);
+	}
+
+	if (sb->s_blocksize - fibh->eoffset >= nfidlen)
+	{
+		fibh->soffset = fibh->eoffset;
+		fibh->eoffset += nfidlen;
+		if (fibh->sbh != fibh->ebh)
+		{
+			udf_release_data(fibh->sbh);
+			fibh->sbh = fibh->ebh;
+		}
+
+		if (UDF_I_ALLOCTYPE(dir) != ICBTAG_FLAG_AD_IN_ICB)
+			block = eloc.logicalBlockNum + ((elen - 1) >>
+				dir->i_sb->s_blocksize_bits);
+		else
+			block = UDF_I_LOCATION(dir).logicalBlockNum;
+				
+		fi = (struct fileIdentDesc *)(fibh->sbh->b_data + fibh->soffset);
+	}
+	else
+	{
+		fibh->soffset = fibh->eoffset - sb->s_blocksize;
+		fibh->eoffset += nfidlen - sb->s_blocksize;
+		if (fibh->sbh != fibh->ebh)
+		{
+			udf_release_data(fibh->sbh);
+			fibh->sbh = fibh->ebh;
+		}
+
+		block = eloc.logicalBlockNum + ((elen - 1) >>
+			dir->i_sb->s_blocksize_bits);
+
+		if (!(fibh->ebh = udf_bread(dir, f_pos >> (dir->i_sb->s_blocksize_bits - 2), 1, err)))
+		{
+			udf_release_data(bh);
+			udf_release_data(fibh->sbh);
+			return NULL;
+		}
+
+		if (!(fibh->soffset))
+		{
+			if (udf_next_aext(dir, &bloc, &extoffset, &eloc, &elen, &bh, 1) ==
+				(EXT_RECORDED_ALLOCATED >> 30))
+			{
+				block = eloc.logicalBlockNum + ((elen - 1) >>
+					dir->i_sb->s_blocksize_bits);
+			}
+			else
+				block ++;
+
+			udf_release_data(fibh->sbh);
+			fibh->sbh = fibh->ebh;
+			fi = (struct fileIdentDesc *)(fibh->sbh->b_data);
+		}
+		else
+		{
+			fi = (struct fileIdentDesc *)
+				(fibh->sbh->b_data + sb->s_blocksize + fibh->soffset);
+		}
+	}
+
+	memset(cfi, 0, sizeof(struct fileIdentDesc));
+	if (UDF_SB_UDFREV(sb) >= 0x0200)
+		udf_new_tag((char *)cfi, TAG_IDENT_FID, 3, 1, block, sizeof(tag));
+	else
+		udf_new_tag((char *)cfi, TAG_IDENT_FID, 2, 1, block, sizeof(tag));
+	cfi->fileVersionNum = cpu_to_le16(1);
+	cfi->lengthFileIdent = namelen;
+	cfi->lengthOfImpUse = cpu_to_le16(0);
+	if (!udf_write_fi(dir, cfi, fi, fibh, NULL, name))
+	{
+		udf_release_data(bh);
+		dir->i_size += nfidlen;
+		if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB)
+			UDF_I_LENALLOC(dir) += nfidlen;
+		dir->i_version = ++event;
+		mark_inode_dirty(dir);
+		return fi;
+	}
+	else
+	{
+		udf_release_data(bh);
+		if (fibh->sbh != fibh->ebh)
+			udf_release_data(fibh->ebh);
+		udf_release_data(fibh->sbh);
+		*err = -EIO;
+		return NULL;
+	}
+}
+
+static int udf_delete_entry(struct inode *inode, struct fileIdentDesc *fi,
+	struct udf_fileident_bh *fibh, struct fileIdentDesc *cfi)
+{
+	cfi->fileCharacteristics |= FID_FILE_CHAR_DELETED;
+	if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT))
+		memset(&(cfi->icb), 0x00, sizeof(long_ad));
+	return udf_write_fi(inode, cfi, fi, fibh, NULL, NULL);
+}
+
+static int udf_create(struct inode *dir, struct dentry *dentry, int mode)
+{
+	struct udf_fileident_bh fibh;
+	struct inode *inode;
+	struct fileIdentDesc cfi, *fi;
+	int err;
+
+	inode = udf_new_inode(dir, mode, &err);
+	if (!inode)
+		return err;
+
+	if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB)
+		inode->i_data.a_ops = &udf_adinicb_aops;
+	else
+		inode->i_data.a_ops = &udf_aops;
+	inode->i_op = &udf_file_inode_operations;
+	inode->i_fop = &udf_file_operations;
+	inode->i_mode = mode;
+	mark_inode_dirty(inode);
+
+	if (!(fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err)))
+	{
+		inode->i_nlink --;
+		mark_inode_dirty(inode);
+		iput(inode);
+		return err;
+	}
+	cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize);
+	cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(inode));
+	*(uint32_t *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
+		cpu_to_le32(UDF_I_UNIQUE(inode) & 0x00000000FFFFFFFFUL);
+	udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
+	if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB)
+	{
+		mark_inode_dirty(dir);
+		dir->i_version = ++event;
+	}
+	if (fibh.sbh != fibh.ebh)
+		udf_release_data(fibh.ebh);
+	udf_release_data(fibh.sbh);
+	d_instantiate(dentry, inode);
+	return 0;
+}
+
+static int udf_mknod(struct inode * dir, struct dentry * dentry, int mode, int rdev)
+{
+	struct inode * inode;
+	struct udf_fileident_bh fibh;
+	int err;
+	struct fileIdentDesc cfi, *fi;
+
+	err = -EIO;
+	inode = udf_new_inode(dir, mode, &err);
+	if (!inode)
+		goto out;
+
+	inode->i_uid = current->fsuid;
+	init_special_inode(inode, mode, rdev);
+	if (!(fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err)))
+	{
+		inode->i_nlink --;
+		mark_inode_dirty(inode);
+		iput(inode);
+		return err;
+	}
+	cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize);
+	cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(inode));
+	*(uint32_t *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
+		cpu_to_le32(UDF_I_UNIQUE(inode) & 0x00000000FFFFFFFFUL);
+	udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
+	if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB)
+	{
+		mark_inode_dirty(dir);
+		dir->i_version = ++event;
+	}
+	mark_inode_dirty(inode);
+
+	if (fibh.sbh != fibh.ebh)
+		udf_release_data(fibh.ebh);
+	udf_release_data(fibh.sbh);
+	d_instantiate(dentry, inode);
+	err = 0;
+out:
+	return err;
+}
+
+static int udf_mkdir(struct inode * dir, struct dentry * dentry, int mode)
+{
+	struct inode * inode;
+	struct udf_fileident_bh fibh;
+	int err;
+	struct fileIdentDesc cfi, *fi;
+
+	err = -EMLINK;
+	if (dir->i_nlink >= (256<<sizeof(dir->i_nlink))-1)
+		goto out;
+
+	err = -EIO;
+	inode = udf_new_inode(dir, S_IFDIR, &err);
+	if (!inode)
+		goto out;
+
+	inode->i_op = &udf_dir_inode_operations;
+	inode->i_fop = &udf_dir_operations;
+	if (!(fi = udf_add_entry(inode, NULL, &fibh, &cfi, &err)))
+	{
+		inode->i_nlink--;
+		mark_inode_dirty(inode);
+		iput(inode);
+		goto out;
+	}
+	inode->i_nlink = 2;
+	cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize);
+	cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(dir));
+	*(uint32_t *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
+		cpu_to_le32(UDF_I_UNIQUE(dir) & 0x00000000FFFFFFFFUL);
+	cfi.fileCharacteristics = FID_FILE_CHAR_DIRECTORY | FID_FILE_CHAR_PARENT;
+	udf_write_fi(inode, &cfi, fi, &fibh, NULL, NULL);
+	udf_release_data(fibh.sbh);
+	inode->i_mode = S_IFDIR | mode;
+	if (dir->i_mode & S_ISGID)
+		inode->i_mode |= S_ISGID;
+	mark_inode_dirty(inode);
+
+	if (!(fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err)))
+	{
+		inode->i_nlink = 0;
+		mark_inode_dirty(inode);
+		iput(inode);
+		goto out;
+	}
+	cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize);
+	cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(inode));
+	*(uint32_t *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
+		cpu_to_le32(UDF_I_UNIQUE(inode) & 0x00000000FFFFFFFFUL);
+	cfi.fileCharacteristics |= FID_FILE_CHAR_DIRECTORY;
+	udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
+	dir->i_version = ++event;
+	dir->i_nlink++;
+	mark_inode_dirty(dir);
+	d_instantiate(dentry, inode);
+	if (fibh.sbh != fibh.ebh)
+		udf_release_data(fibh.ebh);
+	udf_release_data(fibh.sbh);
+	err = 0;
+out:
+	return err;
+}
+
+static int empty_dir(struct inode *dir)
+{
+	struct fileIdentDesc *fi, cfi;
+	struct udf_fileident_bh fibh;
+	loff_t f_pos;
+	loff_t size = (udf_ext0_offset(dir) + dir->i_size) >> 2;
+	int block;
+	lb_addr bloc, eloc;
+	uint32_t extoffset, elen, offset;
+	struct buffer_head *bh = NULL;
+
+	f_pos = (udf_ext0_offset(dir) >> 2);
+
+	fibh.soffset = fibh.eoffset = (f_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2;
+	if (inode_bmap(dir, f_pos >> (dir->i_sb->s_blocksize_bits - 2),
+		&bloc, &extoffset, &eloc, &elen, &offset, &bh) == (EXT_RECORDED_ALLOCATED >> 30))
+	{
+		offset >>= dir->i_sb->s_blocksize_bits;
+		block = udf_get_lb_pblock(dir->i_sb, eloc, offset);
+		if ((++offset << dir->i_sb->s_blocksize_bits) < elen)
+		{
+			if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_SHORT)
+				extoffset -= sizeof(short_ad);
+			else if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_LONG)
+				extoffset -= sizeof(long_ad);
+		}
+		else
+			offset = 0;
+	}
+	else
+	{
+		udf_release_data(bh);
+		return 0;
+	}
+
+	if (!(fibh.sbh = fibh.ebh = udf_tread(dir->i_sb, block)))
+		return 0;
+
+	while ( (f_pos < size) )
+	{
+		fi = udf_fileident_read(dir, &f_pos, &fibh, &cfi, &bloc, &extoffset, &eloc, &elen, &offset, &bh);
+
+		if (!fi)
+		{
+			if (fibh.sbh != fibh.ebh)
+				udf_release_data(fibh.ebh);
+			udf_release_data(fibh.sbh);
+			udf_release_data(bh);
+			return 0;
+		}
+
+		if (cfi.lengthFileIdent && (cfi.fileCharacteristics & FID_FILE_CHAR_DELETED) == 0)
+		{
+			udf_release_data(bh);
+			return 0;
+		}
+	}
+	if (fibh.sbh != fibh.ebh)
+		udf_release_data(fibh.ebh);
+	udf_release_data(fibh.sbh);
+	udf_release_data(bh);
+	return 1;
+}
+
+static int udf_rmdir(struct inode * dir, struct dentry * dentry)
+{
+	int retval;
+	struct inode * inode = dentry->d_inode;
+	struct udf_fileident_bh fibh;
+	struct fileIdentDesc *fi, cfi;
+
+	retval = -ENOENT;
+	fi = udf_find_entry(dir, dentry, &fibh, &cfi);
+	if (!fi)
+		goto out;
+
+	retval = -EIO;
+	if (udf_get_lb_pblock(dir->i_sb, lelb_to_cpu(cfi.icb.extLocation), 0) != inode->i_ino)
+		goto end_rmdir;
+	retval = -ENOTEMPTY;
+	if (!empty_dir(inode))
+		goto end_rmdir;
+	retval = udf_delete_entry(dir, fi, &fibh, &cfi);
+	dir->i_version = ++event;
+	if (retval)
+		goto end_rmdir;
+	if (inode->i_nlink != 2)
+		udf_warning(inode->i_sb, "udf_rmdir",
+			"empty directory has nlink != 2 (%d)",
+			inode->i_nlink);
+	inode->i_version = ++event;
+	inode->i_nlink = 0;
+	inode->i_size = 0;
+	mark_inode_dirty(inode);
+	dir->i_nlink --;
+	inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+	UDF_I_UCTIME(inode) = UDF_I_UCTIME(dir) = UDF_I_UMTIME(dir) = CURRENT_UTIME;
+	mark_inode_dirty(dir);
+
+end_rmdir:
+	if (fibh.sbh != fibh.ebh)
+		udf_release_data(fibh.ebh);
+	udf_release_data(fibh.sbh);
+out:
+	return retval;
+}
+
+static int udf_unlink(struct inode * dir, struct dentry * dentry)
+{
+	int retval;
+	struct inode * inode = dentry->d_inode;
+	struct udf_fileident_bh fibh;
+	struct fileIdentDesc *fi;
+	struct fileIdentDesc cfi;
+
+	retval = -ENOENT;
+	fi = udf_find_entry(dir, dentry, &fibh, &cfi);
+	if (!fi)
+		goto out;
+
+	retval = -EIO;
+
+	if (udf_get_lb_pblock(dir->i_sb, lelb_to_cpu(cfi.icb.extLocation), 0) !=
+		inode->i_ino)
+	{
+		goto end_unlink;
+	}
+
+	if (!inode->i_nlink)
+	{
+		udf_debug("Deleting nonexistent file (%lu), %d\n",
+			inode->i_ino, inode->i_nlink);
+		inode->i_nlink = 1;
+	}
+	retval = udf_delete_entry(dir, fi, &fibh, &cfi);
+	if (retval)
+		goto end_unlink;
+	dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+	UDF_I_UCTIME(dir) = UDF_I_UMTIME(dir) = CURRENT_UTIME;
+	mark_inode_dirty(dir);
+	inode->i_nlink--;
+	mark_inode_dirty(inode);
+	inode->i_ctime = dir->i_ctime;
+	retval = 0;
+
+end_unlink:
+	if (fibh.sbh != fibh.ebh)
+		udf_release_data(fibh.ebh);
+	udf_release_data(fibh.sbh);
+out:
+	return retval;
+}
+
+static int udf_symlink(struct inode * dir, struct dentry * dentry, const char * symname)
+{
+	struct inode * inode;
+	struct pathComponent *pc;
+	char *compstart;
+	struct udf_fileident_bh fibh;
+	struct buffer_head *bh = NULL;
+	int eoffset, elen = 0;
+	struct fileIdentDesc *fi;
+	struct fileIdentDesc cfi;
+	char *ea;
+	int err;
+	int block;
+
+	if (!(inode = udf_new_inode(dir, S_IFLNK, &err)))
+		goto out;
+
+	inode->i_mode = S_IFLNK | S_IRWXUGO;
+	inode->i_data.a_ops = &udf_symlink_aops;
+	inode->i_op = &page_symlink_inode_operations;
+
+	if (UDF_I_ALLOCTYPE(inode) != ICBTAG_FLAG_AD_IN_ICB)
+	{
+		struct buffer_head *bh = NULL;
+		lb_addr bloc, eloc;
+		uint32_t elen, extoffset;
+
+		block = udf_new_block(inode->i_sb, inode,
+			UDF_I_LOCATION(inode).partitionReferenceNum,
+			UDF_I_LOCATION(inode).logicalBlockNum, &err);
+		if (!block)
+			goto out_no_entry;
+		bloc = UDF_I_LOCATION(inode);
+		eloc.logicalBlockNum = block;
+		eloc.partitionReferenceNum = UDF_I_LOCATION(inode).partitionReferenceNum;
+		elen = inode->i_sb->s_blocksize;
+		UDF_I_LENEXTENTS(inode) = elen;
+		extoffset = udf_file_entry_alloc_offset(inode);
+		udf_add_aext(inode, &bloc, &extoffset, eloc, elen, &bh, 0);
+		udf_release_data(bh);
+
+		block = udf_get_pblock(inode->i_sb, block,
+			UDF_I_LOCATION(inode).partitionReferenceNum, 0);
+		bh = udf_tread(inode->i_sb, block);
+		lock_buffer(bh);
+		memset(bh->b_data, 0x00, inode->i_sb->s_blocksize);
+		mark_buffer_uptodate(bh, 1);
+		unlock_buffer(bh);
+		mark_buffer_dirty_inode(bh, inode);
+	}
+	else
+	{
+		block = udf_get_lb_pblock(inode->i_sb, UDF_I_LOCATION(inode), 0);
+		bh = udf_tread(inode->i_sb, block);
+	}
+	ea = bh->b_data + udf_ext0_offset(inode);
+
+	eoffset = inode->i_sb->s_blocksize - udf_ext0_offset(inode);
+	pc = (struct pathComponent *)ea;
+
+	if (*symname == '/')
+	{
+		do
+		{
+			symname++;
+		} while (*symname == '/');
+
+		pc->componentType = 1;
+		pc->lengthComponentIdent = 0;
+		pc->componentFileVersionNum = 0;
+		pc += sizeof(struct pathComponent);
+		elen += sizeof(struct pathComponent);
+	}
+
+	err = -ENAMETOOLONG;
+
+	while (*symname)
+	{
+		if (elen + sizeof(struct pathComponent) > eoffset)
+			goto out_no_entry;
+
+		pc = (struct pathComponent *)(ea + elen);
+
+		compstart = (char *)symname;
+
+		do
+		{
+			symname++;
+		} while (*symname && *symname != '/');
+
+		pc->componentType = 5;
+		pc->lengthComponentIdent = 0;
+		pc->componentFileVersionNum = 0;
+		if (pc->componentIdent[0] == '.')
+		{
+			if (pc->lengthComponentIdent == 1)
+				pc->componentType = 4;
+			else if (pc->lengthComponentIdent == 2 && pc->componentIdent[1] == '.')
+				pc->componentType = 3;
+		}
+
+		if (pc->componentType == 5)
+		{
+			if (elen + sizeof(struct pathComponent) + symname - compstart > eoffset)
+				goto out_no_entry;
+			else
+				pc->lengthComponentIdent = symname - compstart;
+
+			memcpy(pc->componentIdent, compstart, pc->lengthComponentIdent);
+		}
+
+		elen += sizeof(struct pathComponent) + pc->lengthComponentIdent;
+
+		if (*symname)
+		{
+			do
+			{
+				symname++;
+			} while (*symname == '/');
+		}
+	}
+
+	udf_release_data(bh);
+	inode->i_size = elen;
+	if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB)
+		UDF_I_LENALLOC(inode) = inode->i_size;
+	mark_inode_dirty(inode);
+
+	if (!(fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err)))
+		goto out_no_entry;
+	cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize);
+	cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(inode));
+	if (UDF_SB_LVIDBH(inode->i_sb))
+	{
+		struct logicalVolHeaderDesc *lvhd;
+		uint64_t uniqueID;
+		lvhd = (struct logicalVolHeaderDesc *)(UDF_SB_LVID(inode->i_sb)->logicalVolContentsUse);
+		uniqueID = le64_to_cpu(lvhd->uniqueID);
+		*(uint32_t *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
+			cpu_to_le32(uniqueID & 0x00000000FFFFFFFFUL);
+		if (!(++uniqueID & 0x00000000FFFFFFFFUL))
+			uniqueID += 16;
+		lvhd->uniqueID = cpu_to_le64(uniqueID);
+		mark_buffer_dirty(UDF_SB_LVIDBH(inode->i_sb));
+	}
+	udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
+	if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB)
+	{
+		mark_inode_dirty(dir);
+		dir->i_version = ++event;
+	}
+	if (fibh.sbh != fibh.ebh)
+		udf_release_data(fibh.ebh);
+	udf_release_data(fibh.sbh);
+	d_instantiate(dentry, inode);
+	err = 0;
+
+out:
+	return err;
+
+out_no_entry:
+	inode->i_nlink--;
+	mark_inode_dirty(inode);
+	iput(inode);
+	goto out;
+}
+
+static int udf_link(struct dentry * old_dentry, struct inode * dir,
+	 struct dentry *dentry)
+{
+	struct inode *inode = old_dentry->d_inode;
+	struct udf_fileident_bh fibh;
+	int err;
+	struct fileIdentDesc cfi, *fi;
+
+	if (S_ISDIR(inode->i_mode))
+		return -EPERM;
+
+	if (inode->i_nlink >= (256<<sizeof(inode->i_nlink))-1)
+		return -EMLINK;
+
+	if (!(fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err)))
+		return err;
+	cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize);
+	cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(inode));
+	if (UDF_SB_LVIDBH(inode->i_sb))
+	{
+		struct logicalVolHeaderDesc *lvhd;
+		uint64_t uniqueID;
+		lvhd = (struct logicalVolHeaderDesc *)(UDF_SB_LVID(inode->i_sb)->logicalVolContentsUse);
+		uniqueID = le64_to_cpu(lvhd->uniqueID);
+		*(uint32_t *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
+			cpu_to_le32(uniqueID & 0x00000000FFFFFFFFUL);
+		if (!(++uniqueID & 0x00000000FFFFFFFFUL))
+			uniqueID += 16;
+		lvhd->uniqueID = cpu_to_le64(uniqueID);
+		mark_buffer_dirty(UDF_SB_LVIDBH(inode->i_sb));
+	}
+	udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
+	if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB)
+	{
+		mark_inode_dirty(dir);
+		dir->i_version = ++event;
+	}
+	if (fibh.sbh != fibh.ebh)
+		udf_release_data(fibh.ebh);
+	udf_release_data(fibh.sbh);
+	inode->i_nlink ++;
+	inode->i_ctime = CURRENT_TIME;
+	UDF_I_UCTIME(inode) = CURRENT_UTIME;
+	mark_inode_dirty(inode);
+	atomic_inc(&inode->i_count);
+	d_instantiate(dentry, inode);
+	return 0;
+}
+
+/* Anybody can rename anything with this: the permission checks are left to the
+ * higher-level routines.
+ */
+static int udf_rename (struct inode * old_dir, struct dentry * old_dentry,
+	struct inode * new_dir, struct dentry * new_dentry)
+{
+	struct inode * old_inode = old_dentry->d_inode;
+	struct inode * new_inode = new_dentry->d_inode;
+	struct udf_fileident_bh ofibh, nfibh;
+	struct fileIdentDesc *ofi = NULL, *nfi = NULL, *dir_fi = NULL, ocfi, ncfi;
+	struct buffer_head *dir_bh = NULL;
+	int retval = -ENOENT;
+
+	if ((ofi = udf_find_entry(old_dir, old_dentry, &ofibh, &ocfi)))
+	{
+		if (ofibh.sbh != ofibh.ebh)
+			udf_release_data(ofibh.ebh);
+		udf_release_data(ofibh.sbh);
+	}
+	if (!ofi || udf_get_lb_pblock(old_dir->i_sb, lelb_to_cpu(ocfi.icb.extLocation), 0) !=
+		old_inode->i_ino)
+	{
+		goto end_rename;
+	}
+
+	nfi = udf_find_entry(new_dir, new_dentry, &nfibh, &ncfi);
+	if (nfi)
+	{
+		if (!new_inode)
+		{
+			if (nfibh.sbh != nfibh.ebh)
+				udf_release_data(nfibh.ebh);
+			udf_release_data(nfibh.sbh);
+			nfi = NULL;
+		}
+	}
+	if (S_ISDIR(old_inode->i_mode))
+	{
+		uint32_t offset = udf_ext0_offset(old_inode);
+
+		if (new_inode)
+		{
+			retval = -ENOTEMPTY;
+			if (!empty_dir(new_inode))
+				goto end_rename;
+		}
+		retval = -EIO;
+		dir_bh = udf_bread(old_inode, 0, 0, &retval);
+		if (!dir_bh)
+			goto end_rename;
+		dir_fi = udf_get_fileident(dir_bh->b_data, old_inode->i_sb->s_blocksize, &offset);
+		if (!dir_fi)
+			goto end_rename;
+		if (udf_get_lb_pblock(old_inode->i_sb, cpu_to_lelb(dir_fi->icb.extLocation), 0) !=
+			old_dir->i_ino)
+		{
+			goto end_rename;
+		}
+		retval = -EMLINK;
+		if (!new_inode && new_dir->i_nlink >= (256<<sizeof(new_dir->i_nlink))-1)
+			goto end_rename;
+	}
+	if (!nfi)
+	{
+		nfi = udf_add_entry(new_dir, new_dentry, &nfibh, &ncfi, &retval);
+		if (!nfi)
+			goto end_rename;
+	}
+	new_dir->i_version = ++event;
+
+	/*
+	 * Like most other Unix systems, set the ctime for inodes on a
+	 * rename.
+	 */
+	old_inode->i_ctime = CURRENT_TIME;
+	UDF_I_UCTIME(old_inode) = CURRENT_UTIME;
+	mark_inode_dirty(old_inode);
+
+	/*
+	 * ok, that's it
+	 */
+	ncfi.fileVersionNum = ocfi.fileVersionNum;
+	ncfi.fileCharacteristics = ocfi.fileCharacteristics;
+	memcpy(&(ncfi.icb), &(ocfi.icb), sizeof(long_ad));
+	udf_write_fi(new_dir, &ncfi, nfi, &nfibh, NULL, NULL);
+
+	/* The old fid may have moved - find it again */
+	ofi = udf_find_entry(old_dir, old_dentry, &ofibh, &ocfi);
+	udf_delete_entry(old_dir, ofi, &ofibh, &ocfi);
+
+	old_dir->i_version = ++event;
+	if (new_inode)
+	{
+		new_inode->i_nlink--;
+		new_inode->i_ctime = CURRENT_TIME;
+		UDF_I_UCTIME(new_inode) = CURRENT_UTIME;
+		mark_inode_dirty(new_inode);
+	}
+	old_dir->i_ctime = old_dir->i_mtime = CURRENT_TIME;
+	UDF_I_UCTIME(old_dir) = UDF_I_UMTIME(old_dir) = CURRENT_UTIME;
+	mark_inode_dirty(old_dir);
+
+	if (dir_bh)
+	{
+		dir_fi->icb.extLocation = lelb_to_cpu(UDF_I_LOCATION(new_dir));
+		udf_update_tag((char *)dir_fi, (sizeof(struct fileIdentDesc) +
+			cpu_to_le16(dir_fi->lengthOfImpUse) + 3) & ~3);
+		if (UDF_I_ALLOCTYPE(old_inode) == ICBTAG_FLAG_AD_IN_ICB)
+		{
+			old_inode->i_version = ++event;
+			mark_inode_dirty(old_inode);
+		}
+		else
+			mark_buffer_dirty_inode(dir_bh, old_inode);
+		old_dir->i_nlink --;
+		mark_inode_dirty(old_dir);
+		if (new_inode)
+		{
+			new_inode->i_nlink --;
+			mark_inode_dirty(new_inode);
+		}
+		else
+		{
+			new_dir->i_nlink ++;
+			mark_inode_dirty(new_dir);
+		}
+	}
+
+	if (ofi)
+	{
+		if (ofibh.sbh != ofibh.ebh)
+			udf_release_data(ofibh.ebh);
+		udf_release_data(ofibh.sbh);
+	}
+
+	retval = 0;
+
+end_rename:
+	udf_release_data(dir_bh);
+	if (nfi)
+	{
+		if (nfibh.sbh != nfibh.ebh)
+			udf_release_data(nfibh.ebh);
+		udf_release_data(nfibh.sbh);
+	}
+	return retval;
+}
+
+struct inode_operations udf_dir_inode_operations = {
+	lookup:				udf_lookup,
+	create:				udf_create,
+	link:				udf_link,
+	unlink:				udf_unlink,
+	symlink:			udf_symlink,
+	mkdir:				udf_mkdir,
+	rmdir:				udf_rmdir,
+	mknod:				udf_mknod,
+	rename:				udf_rename,
+};
diff --git a/fs/udf/osta_udf.h b/fs/udf/osta_udf.h
new file mode 100644
index 00000000000000..ab3b6b67da24e3
--- /dev/null
+++ b/fs/udf/osta_udf.h
@@ -0,0 +1,271 @@
+/*
+ * osta_udf.h
+ *
+ * This file is based on OSTA UDF(tm) 2.01 (March 15, 2000)
+ * http://www.osta.org
+ *
+ * Copyright (c) 2001-2002  Ben Fennema <bfennema@falcon.csc.calpoly.edu>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU Public License ("GPL").
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "ecma_167.h"
+
+#ifndef _OSTA_UDF_H
+#define _OSTA_UDF_H 1
+
+/* OSTA CS0 Charspec (UDF 2.01 2.1.2) */
+#define UDF_CHAR_SET_TYPE		0
+#define UDF_CHAR_SET_INFO		"OSTA Compressed Unicode"
+
+/* Entity Identifier (UDF 2.01 2.1.5) */
+/* Identifiers (UDF 2.01 2.1.5.2) */
+#define UDF_ID_DEVELOPER		"*Linux UDFFS"
+#define	UDF_ID_COMPLIANT		"*OSTA UDF Compliant"
+#define UDF_ID_LV_INFO			"*UDF LV Info"
+#define UDF_ID_FREE_EA			"*UDF FreeEASpace"
+#define UDF_ID_FREE_APP_EA		"*UDF FreeAppEASpace"
+#define UDF_ID_DVD_CGMS			"*UDF DVD CGMS Info"
+#define UDF_ID_OS2_EA			"*UDF OS/2 EA"
+#define UDF_ID_OS2_EA_LENGTH		"*UDF OS/2 EALength"
+#define UDF_ID_MAC_VOLUME		"*UDF Mac VolumeInfo"
+#define UDF_ID_MAC_FINDER		"*UDF Mac FinderInfo"
+#define UDF_ID_MAC_UNIQUE		"*UDF Mac UniqueIDTable"
+#define UDF_ID_MAC_RESOURCE		"*UDF Mac ResourceFork"
+#define UDF_ID_VIRTUAL			"*UDF Virtual Partition"
+#define UDF_ID_SPARABLE			"*UDF Sparable Partition"
+#define UDF_ID_ALLOC			"*UDF Virtual Alloc Tbl"
+#define UDF_ID_SPARING			"*UDF Sparing Table"
+
+/* Identifier Suffix (UDF 2.01 2.1.5.3) */
+#define IS_DF_HARD_WRITE_PROTECT	0x01
+#define IS_DF_SOFT_WRITE_PROTECT	0x02
+
+struct UDFIdentSuffix
+{
+	uint16_t	UDFRevision;
+	uint8_t		OSClass;
+	uint8_t		OSIdentifier;
+	uint8_t		reserved[4];
+} __attribute__ ((packed));
+
+struct impIdentSuffix
+{
+	uint8_t		OSClass;
+	uint8_t		OSIdentifier;
+	uint8_t		reserved[6];
+} __attribute__ ((packed));
+
+struct appIdentSuffix
+{
+	uint8_t		impUse[8];
+} __attribute__ ((packed));
+ 
+/* Logical Volume Integrity Descriptor (UDF 2.01 2.2.6) */
+/* Implementation Use (UDF 2.01 2.2.6.4) */
+struct logicalVolIntegrityDescImpUse
+{
+	regid		impIdent;
+	uint32_t	numFiles;
+	uint32_t	numDirs;
+	uint16_t	minUDFReadRev;
+	uint16_t	minUDFWriteRev;
+	uint16_t	maxUDFWriteRev;
+	uint8_t		impUse[0];
+} __attribute__ ((packed));
+
+/* Implementation Use Volume Descriptor (UDF 2.01 2.2.7) */
+/* Implementation Use (UDF 2.01 2.2.7.2) */
+struct impUseVolDescImpUse
+{
+	charspec	LVICharset;
+	dstring		logicalVolIdent[128];
+	dstring		LVInfo1[36];
+	dstring		LVInfo2[36];
+	dstring		LVInfo3[36];
+	regid		impIdent;
+	uint8_t		impUse[128];
+} __attribute__ ((packed));
+
+struct udfPartitionMap2
+{
+	uint8_t		partitionMapType;
+	uint8_t		partitionMapLength;
+	uint8_t		reserved1[2];
+	regid		partIdent;
+	uint16_t	volSeqNum;
+	uint16_t	partitionNum;
+} __attribute__ ((packed));
+
+/* Virtual Partition Map (UDF 2.01 2.2.8) */
+struct virtualPartitionMap
+{
+	uint8_t		partitionMapType;
+	uint8_t		partitionMapLength;
+	uint8_t		reserved1[2];
+	regid		partIdent;
+	uint16_t	volSeqNum;
+	uint16_t	partitionNum;
+	uint8_t		reserved2[24];
+} __attribute__ ((packed));
+
+/* Sparable Partition Map (UDF 2.01 2.2.9) */
+struct sparablePartitionMap
+{
+	uint8_t		partitionMapType;
+	uint8_t		partitionMapLength;
+	uint8_t		reserved1[2];
+	regid		partIdent;
+	uint16_t	volSeqNum;
+	uint16_t	partitionNum;
+	uint16_t	packetLength;
+	uint8_t		numSparingTables;
+	uint8_t		reserved2[1];
+	uint32_t	sizeSparingTable;
+	uint32_t	locSparingTable[4];
+} __attribute__ ((packed));
+
+/* Virtual Allocation Table (UDF 1.5 2.2.10) */
+struct virtualAllocationTable15
+{
+	uint32_t	VirtualSector[0];
+	regid		ident;
+	uint32_t	previousVATICB;
+} __attribute__ ((packed));  
+
+#define ICBTAG_FILE_TYPE_VAT15		0x00U
+
+/* Virtual Allocation Table (UDF 2.01 2.2.10) */
+struct virtualAllocationTable20
+{
+	uint16_t	lengthHeader;
+	uint16_t	lengthImpUse;
+	dstring		logicalVolIdent[128];
+	uint32_t	previousVatICBLoc;
+	uint32_t	numFIDSFiles;
+	uint32_t	numFIDSDirectories;
+	uint16_t	minReadRevision;
+	uint16_t	minWriteRevision;
+	uint16_t	maxWriteRevision;
+	uint16_t	reserved;
+	uint8_t		impUse[0];
+	uint32_t	vatEntry[0];
+} __attribute__ ((packed));
+
+#define ICBTAG_FILE_TYPE_VAT20		0xF8U
+
+/* Sparing Table (UDF 2.01 2.2.11) */
+struct sparingEntry
+{
+	uint32_t	origLocation;
+	uint32_t	mappedLocation;
+} __attribute__ ((packed));
+
+struct sparingTable
+{
+	tag 		descTag;
+	regid		sparingIdent;
+	uint16_t	reallocationTableLen;
+	uint16_t	reserved;
+	uint32_t	sequenceNum;
+	struct sparingEntry
+			mapEntry[0];
+} __attribute__ ((packed));
+
+/* struct long_ad ICB - ADImpUse (UDF 2.01 2.2.4.3) */
+struct allocDescImpUse
+{
+	uint16_t	flags;
+	uint8_t		impUse[4];
+} __attribute__ ((packed));
+
+#define AD_IU_EXT_ERASED		0x0001
+
+/* Real-Time Files (UDF 2.01 6.11) */
+#define ICBTAG_FILE_TYPE_REALTIME	0xF9U
+
+/* Implementation Use Extended Attribute (UDF 2.01 3.3.4.5) */
+/* FreeEASpace (UDF 2.01 3.3.4.5.1.1) */
+struct freeEaSpace
+{
+	uint16_t	headerChecksum;
+	uint8_t		freeEASpace[0];
+} __attribute__ ((packed));
+
+/* DVD Copyright Management Information (UDF 2.01 3.3.4.5.1.2) */
+struct DVDCopyrightImpUse 
+{
+	uint16_t	headerChecksum;
+	uint8_t		CGMSInfo;
+	uint8_t		dataType;
+	uint8_t		protectionSystemInfo[4];
+} __attribute__ ((packed));
+
+/* Application Use Extended Attribute (UDF 2.01 3.3.4.6) */
+/* FreeAppEASpace (UDF 2.01 3.3.4.6.1) */
+struct freeAppEASpace
+{
+	uint16_t	headerChecksum;
+	uint8_t		freeEASpace[0];
+} __attribute__ ((packed));
+
+/* UDF Defined System Stream (UDF 2.01 3.3.7) */
+#define UDF_ID_UNIQUE_ID		"*UDF Unique ID Mapping Data"
+#define UDF_ID_NON_ALLOC		"*UDF Non-Allocatable Space"
+#define UDF_ID_POWER_CAL		"*UDF Power Cal Table"
+#define UDF_ID_BACKUP			"*UDF Backup"
+
+/* Operating System Identifiers (UDF 2.01 6.3) */
+#define UDF_OS_CLASS_UNDEF		0x00U
+#define UDF_OS_CLASS_DOS		0x01U
+#define UDF_OS_CLASS_OS2		0x02U
+#define UDF_OS_CLASS_MAC		0x03U
+#define UDF_OS_CLASS_UNIX		0x04U
+#define UDF_OS_CLASS_WIN9X		0x05U
+#define UDF_OS_CLASS_WINNT		0x06U
+#define UDF_OS_CLASS_OS400		0x07U
+#define UDF_OS_CLASS_BEOS		0x08U
+#define UDF_OS_CLASS_WINCE		0x09U
+
+#define UDF_OS_ID_UNDEF			0x00U
+#define UDF_OS_ID_DOS			0x00U
+#define UDF_OS_ID_OS2			0x00U
+#define UDF_OS_ID_MAC			0x00U
+#define UDF_OS_ID_UNIX			0x00U
+#define UDF_OS_ID_AIX			0x01U
+#define UDF_OS_ID_SOLARIS		0x02U
+#define UDF_OS_ID_HPUX			0x03U
+#define UDF_OS_ID_IRIX			0x04U
+#define UDF_OS_ID_LINUX			0x05U
+#define UDF_OS_ID_MKLINUX		0x06U
+#define UDF_OS_ID_FREEBSD		0x07U
+#define UDF_OS_ID_WIN9X			0x00U
+#define UDF_OS_ID_WINNT			0x00U
+#define UDF_OS_ID_OS400			0x00U
+#define UDF_OS_ID_BEOS			0x00U
+#define UDF_OS_ID_WINCE			0x00U
+
+#endif /* _OSTA_UDF_H */
diff --git a/fs/udf/partition.c b/fs/udf/partition.c
new file mode 100644
index 00000000000000..ba50f93a3c7c6c
--- /dev/null
+++ b/fs/udf/partition.c
@@ -0,0 +1,225 @@
+/*
+ * partition.c
+ *
+ * PURPOSE
+ *      Partition handling routines for the OSTA-UDF(tm) filesystem.
+ *
+ * CONTACTS
+ *      E-mail regarding any portion of the Linux UDF file system should be
+ *      directed to the development team mailing list (run by majordomo):
+ *              linux_udf@hpesjro.fc.hp.com
+ *
+ * COPYRIGHT
+ *      This file is distributed under the terms of the GNU General Public
+ *      License (GPL). Copies of the GPL can be obtained from:
+ *              ftp://prep.ai.mit.edu/pub/gnu/GPL
+ *      Each contributing author retains all rights to their own work.
+ *
+ *  (C) 1998-2001 Ben Fennema
+ *
+ * HISTORY
+ *
+ * 12/06/98 blf  Created file. 
+ *
+ */
+
+#include "udfdecl.h"
+#include "udf_sb.h"
+#include "udf_i.h"
+
+#include <linux/fs.h>
+#include <linux/string.h>
+#include <linux/udf_fs.h>
+#include <linux/slab.h>
+
+inline uint32_t udf_get_pblock(struct super_block *sb, uint32_t block, uint16_t partition, uint32_t offset)
+{
+	if (partition >= UDF_SB_NUMPARTS(sb))
+	{
+		udf_debug("block=%d, partition=%d, offset=%d: invalid partition\n",
+			block, partition, offset);
+		return 0xFFFFFFFF;
+	}
+	if (UDF_SB_PARTFUNC(sb, partition))
+		return UDF_SB_PARTFUNC(sb, partition)(sb, block, partition, offset);
+	else
+		return UDF_SB_PARTROOT(sb, partition) + block + offset;
+}
+
+uint32_t udf_get_pblock_virt15(struct super_block *sb, uint32_t block, uint16_t partition, uint32_t offset)
+{
+	struct buffer_head *bh = NULL;
+	uint32_t newblock;
+	uint32_t index;
+	uint32_t loc;
+
+	index = (sb->s_blocksize - UDF_SB_TYPEVIRT(sb,partition).s_start_offset) / sizeof(uint32_t);
+
+	if (block > UDF_SB_TYPEVIRT(sb,partition).s_num_entries)
+	{
+		udf_debug("Trying to access block beyond end of VAT (%d max %d)\n",
+			block, UDF_SB_TYPEVIRT(sb,partition).s_num_entries);
+		return 0xFFFFFFFF;
+	}
+
+	if (block >= index)
+	{
+		block -= index;
+		newblock = 1 + (block / (sb->s_blocksize / sizeof(uint32_t)));
+		index = block % (sb->s_blocksize / sizeof(uint32_t));
+	}
+	else
+	{
+		newblock = 0;
+		index = UDF_SB_TYPEVIRT(sb,partition).s_start_offset / sizeof(uint32_t) + block;
+	}
+
+	loc = udf_block_map(UDF_SB_VAT(sb), newblock);
+
+	if (!(bh = sb_bread(sb, loc)))
+	{
+		udf_debug("get_pblock(UDF_VIRTUAL_MAP:%p,%d,%d) VAT: %d[%d]\n",
+			sb, block, partition, loc, index);
+		return 0xFFFFFFFF;
+	}
+
+	loc = le32_to_cpu(((uint32_t *)bh->b_data)[index]);
+
+	udf_release_data(bh);
+
+	if (UDF_I_LOCATION(UDF_SB_VAT(sb)).partitionReferenceNum == partition)
+	{
+		udf_debug("recursive call to udf_get_pblock!\n");
+		return 0xFFFFFFFF;
+	}
+
+	return udf_get_pblock(sb, loc, UDF_I_LOCATION(UDF_SB_VAT(sb)).partitionReferenceNum, offset);
+}
+
+inline uint32_t udf_get_pblock_virt20(struct super_block *sb, uint32_t block, uint16_t partition, uint32_t offset)
+{
+	return udf_get_pblock_virt15(sb, block, partition, offset);
+}
+
+uint32_t udf_get_pblock_spar15(struct super_block *sb, uint32_t block, uint16_t partition, uint32_t offset)
+{
+	int i;
+	struct sparingTable *st = NULL;
+	uint32_t packet = (block + offset) & ~(UDF_SB_TYPESPAR(sb,partition).s_packet_len - 1);
+
+	for (i=0; i<4; i++)
+	{
+		if (UDF_SB_TYPESPAR(sb,partition).s_spar_map[i] != NULL)
+		{
+			st = (struct sparingTable *)UDF_SB_TYPESPAR(sb,partition).s_spar_map[i]->b_data;
+			break;
+		}
+	}
+
+	if (st)
+	{
+		for (i=0; i<st->reallocationTableLen; i++)
+		{
+			if (le32_to_cpu(st->mapEntry[i].origLocation) >= 0xFFFFFFF0)
+				break;
+			else if (le32_to_cpu(st->mapEntry[i].origLocation) == packet)
+			{
+				return le32_to_cpu(st->mapEntry[i].mappedLocation) +
+					((block + offset) & (UDF_SB_TYPESPAR(sb,partition).s_packet_len - 1));
+			}
+			else if (le32_to_cpu(st->mapEntry[i].origLocation) > packet)
+				break;
+		}
+	}
+	return UDF_SB_PARTROOT(sb,partition) + block + offset;
+}
+
+int udf_relocate_blocks(struct super_block *sb, long old_block, long *new_block)
+{
+	struct udf_sparing_data *sdata;
+	struct sparingTable *st = NULL;
+	struct sparingEntry mapEntry;
+	uint32_t packet;
+	int i, j, k, l;
+
+	for (i=0; i<UDF_SB_NUMPARTS(sb); i++)
+	{
+		if (old_block > UDF_SB_PARTROOT(sb,i) &&
+		    old_block < UDF_SB_PARTROOT(sb,i) + UDF_SB_PARTLEN(sb,i))
+		{
+			sdata = &UDF_SB_TYPESPAR(sb,i);
+			packet = (old_block - UDF_SB_PARTROOT(sb,i)) & ~(sdata->s_packet_len - 1);
+
+			for (j=0; j<4; j++)
+			{
+				if (UDF_SB_TYPESPAR(sb,i).s_spar_map[j] != NULL)
+				{
+					st = (struct sparingTable *)sdata->s_spar_map[j]->b_data;
+					break;
+				}
+			}
+
+			if (!st)
+				return 1;
+
+			for (k=0; k<st->reallocationTableLen; k++)
+			{
+				if (le32_to_cpu(st->mapEntry[k].origLocation) == 0xFFFFFFFF)
+				{
+					for (; j<4; j++)
+					{
+						if (sdata->s_spar_map[j])
+						{
+							st = (struct sparingTable *)sdata->s_spar_map[j]->b_data;
+							st->mapEntry[k].origLocation = cpu_to_le32(packet);
+							udf_update_tag((char *)st, sizeof(struct sparingTable) + st->reallocationTableLen * sizeof(struct sparingEntry));
+							mark_buffer_dirty(sdata->s_spar_map[j]);
+						}
+					}
+					*new_block = le32_to_cpu(st->mapEntry[k].mappedLocation) +
+						((old_block - UDF_SB_PARTROOT(sb,i)) & (sdata->s_packet_len - 1));
+					return 0;
+				}
+				else if (le32_to_cpu(st->mapEntry[k].origLocation) == packet)
+				{
+					*new_block = le32_to_cpu(st->mapEntry[k].mappedLocation) +
+						((old_block - UDF_SB_PARTROOT(sb,i)) & (sdata->s_packet_len - 1));
+					return 0;
+				}
+				else if (le32_to_cpu(st->mapEntry[k].origLocation) > packet)
+					break;
+			}
+			for (l=k; l<st->reallocationTableLen; l++)
+			{
+				if (le32_to_cpu(st->mapEntry[l].origLocation) == 0xFFFFFFFF)
+				{
+					for (; j<4; j++)
+					{
+						if (sdata->s_spar_map[j])
+						{
+							st = (struct sparingTable *)sdata->s_spar_map[j]->b_data;
+							mapEntry = st->mapEntry[l];
+							mapEntry.origLocation = cpu_to_le32(packet);
+							memmove(&st->mapEntry[k+1], &st->mapEntry[k], (l-k)*sizeof(struct sparingEntry));
+							st->mapEntry[k] = mapEntry;
+							udf_update_tag((char *)st, sizeof(struct sparingTable) + st->reallocationTableLen * sizeof(struct sparingEntry));
+							mark_buffer_dirty(sdata->s_spar_map[j]);
+						}
+					}
+					*new_block = le32_to_cpu(st->mapEntry[k].mappedLocation) +
+						((old_block - UDF_SB_PARTROOT(sb,i)) & (sdata->s_packet_len - 1));
+					return 0;
+				}
+			}
+			return 1;
+		}
+	}
+	if (i == UDF_SB_NUMPARTS(sb))
+	{
+		/* outside of partitions */
+		/* for now, fail =) */
+		return 1;
+	}
+
+	return 0;
+}
diff --git a/fs/udf/super.c b/fs/udf/super.c
new file mode 100644
index 00000000000000..9df2fa2bae28d6
--- /dev/null
+++ b/fs/udf/super.c
@@ -0,0 +1,1816 @@
+/*
+ * super.c
+ *
+ * PURPOSE
+ *  Super block routines for the OSTA-UDF(tm) filesystem.
+ *
+ * DESCRIPTION
+ *  OSTA-UDF(tm) = Optical Storage Technology Association
+ *  Universal Disk Format.
+ *
+ *  This code is based on version 2.00 of the UDF specification,
+ *  and revision 3 of the ECMA 167 standard [equivalent to ISO 13346].
+ *    http://www.osta.org/
+ *    http://www.ecma.ch/
+ *    http://www.iso.org/
+ *
+ * CONTACTS
+ *  E-mail regarding any portion of the Linux UDF file system should be
+ *  directed to the development team mailing list (run by majordomo):
+ *	  linux_udf@hpesjro.fc.hp.com
+ *
+ * COPYRIGHT
+ *  This file is distributed under the terms of the GNU General Public
+ *  License (GPL). Copies of the GPL can be obtained from:
+ *    ftp://prep.ai.mit.edu/pub/gnu/GPL
+ *  Each contributing author retains all rights to their own work.
+ *
+ *  (C) 1998 Dave Boynton
+ *  (C) 1998-2001 Ben Fennema
+ *  (C) 2000 Stelias Computing Inc
+ *
+ * HISTORY
+ *
+ *  09/24/98 dgb  changed to allow compiling outside of kernel, and
+ *                added some debugging.
+ *  10/01/98 dgb  updated to allow (some) possibility of compiling w/2.0.34
+ *  10/16/98      attempting some multi-session support
+ *  10/17/98      added freespace count for "df"
+ *  11/11/98 gr   added novrs option
+ *  11/26/98 dgb  added fileset,anchor mount options
+ *  12/06/98 blf  really hosed things royally. vat/sparing support. sequenced vol descs
+ *                rewrote option handling based on isofs
+ *  12/20/98      find the free space bitmap (if it exists)
+ */
+
+#include "udfdecl.h"    
+
+#include <linux/config.h>
+#include <linux/version.h>
+#include <linux/blkdev.h>
+#include <linux/slab.h>
+#include <linux/kernel.h>
+#include <linux/locks.h>
+#include <linux/module.h>
+#include <linux/stat.h>
+#include <linux/cdrom.h>
+#include <linux/nls.h>
+#include <asm/byteorder.h>
+
+#include <linux/udf_fs.h>
+#include "udf_sb.h"
+#include "udf_i.h"
+
+#include <linux/init.h>
+#include <asm/uaccess.h>
+
+#define VDS_POS_PRIMARY_VOL_DESC	0
+#define VDS_POS_UNALLOC_SPACE_DESC	1
+#define VDS_POS_LOGICAL_VOL_DESC	2
+#define VDS_POS_PARTITION_DESC		3
+#define VDS_POS_IMP_USE_VOL_DESC	4
+#define VDS_POS_VOL_DESC_PTR		5
+#define VDS_POS_TERMINATING_DESC	6
+#define VDS_POS_LENGTH			7
+
+static char error_buf[1024];
+
+/* These are the "meat" - everything else is stuffing */
+static struct super_block *udf_read_super(struct super_block *, void *, int);
+static void udf_put_super(struct super_block *);
+static void udf_write_super(struct super_block *);
+static int udf_remount_fs(struct super_block *, int *, char *);
+static int udf_check_valid(struct super_block *, int, int);
+static int udf_vrs(struct super_block *sb, int silent);
+static int udf_load_partition(struct super_block *, lb_addr *);
+static int udf_load_logicalvol(struct super_block *, struct buffer_head *, lb_addr *);
+static void udf_load_logicalvolint(struct super_block *, extent_ad);
+static void udf_find_anchor(struct super_block *);
+static int udf_find_fileset(struct super_block *, lb_addr *, lb_addr *);
+static void udf_load_pvoldesc(struct super_block *, struct buffer_head *);
+static void udf_load_fileset(struct super_block *, struct buffer_head *, lb_addr *);
+static void udf_load_partdesc(struct super_block *, struct buffer_head *);
+static void udf_open_lvid(struct super_block *);
+static void udf_close_lvid(struct super_block *);
+static unsigned int udf_count_free(struct super_block *);
+static int udf_statfs(struct super_block *, struct statfs *);
+
+/* UDF filesystem type */
+static DECLARE_FSTYPE_DEV(udf_fstype, "udf", udf_read_super);
+
+/* Superblock operations */
+static struct super_operations udf_sb_ops = {
+	read_inode:		udf_read_inode,
+	write_inode:		udf_write_inode,
+	put_inode:		udf_put_inode,
+	delete_inode:		udf_delete_inode,
+	put_super:		udf_put_super,
+	write_super:		udf_write_super,
+	statfs:			udf_statfs,
+	remount_fs:		udf_remount_fs,
+};
+
+struct udf_options
+{
+	unsigned char novrs;
+	unsigned int blocksize;
+	unsigned int session;
+	unsigned int lastblock;
+	unsigned int anchor;
+	unsigned int volume;
+	unsigned short partition;
+	unsigned int fileset;
+	unsigned int rootdir;
+	unsigned int flags;
+	mode_t umask;
+	gid_t gid;
+	uid_t uid;
+	struct nls_table *nls_map;
+};
+
+static int __init init_udf_fs(void)
+{
+	printk(KERN_NOTICE "udf: registering filesystem\n");
+	return register_filesystem(&udf_fstype);
+}
+
+static void __exit exit_udf_fs(void)
+{
+	printk(KERN_NOTICE "udf: unregistering filesystem\n");
+	unregister_filesystem(&udf_fstype);
+}
+
+EXPORT_NO_SYMBOLS;
+
+module_init(init_udf_fs)
+module_exit(exit_udf_fs)
+
+/*
+ * udf_parse_options
+ *
+ * PURPOSE
+ *	Parse mount options.
+ *
+ * DESCRIPTION
+ *	The following mount options are supported:
+ *
+ *	gid=		Set the default group.
+ *	umask=		Set the default umask.
+ *	uid=		Set the default user.
+ *	bs=			Set the block size.
+ *	unhide		Show otherwise hidden files.
+ *	undelete	Show deleted files in lists.
+ *	adinicb		Embed data in the inode (default)
+ *	noadinicb	Don't embed data in the inode
+ *	shortad		Use short ad's
+ *	longad		Use long ad's (default)
+ *	nostrict	Unset strict conformance
+ *	iocharset=	Set the NLS character set
+ *
+ *	The remaining are for debugging and disaster recovery:
+ *
+ *	novrs		Skip volume sequence recognition 
+ *
+ *	The following expect a offset from 0.
+ *
+ *	session=	Set the CDROM session (default= last session)
+ *	anchor=		Override standard anchor location. (default= 256)
+ *	volume=		Override the VolumeDesc location. (unused)
+ *	partition=	Override the PartitionDesc location. (unused)
+ *	lastblock=	Set the last block of the filesystem/
+ *
+ *	The following expect a offset from the partition root.
+ *
+ *	fileset=	Override the fileset block location. (unused)
+ *	rootdir=	Override the root directory location. (unused)
+ *		WARNING: overriding the rootdir to a non-directory may
+ *		yield highly unpredictable results.
+ *
+ * PRE-CONDITIONS
+ *	options		Pointer to mount options string.
+ *	uopts		Pointer to mount options variable.
+ *
+ * POST-CONDITIONS
+ *	<return>	0	Mount options parsed okay.
+ *	<return>	-1	Error parsing mount options.
+ *
+ * HISTORY
+ *	July 1, 1997 - Andrew E. Mileski
+ *	Written, tested, and released.
+ */
+
+static int
+udf_parse_options(char *options, struct udf_options *uopt)
+{
+	char *opt, *val;
+
+	uopt->novrs = 0;
+	uopt->blocksize = 2048;
+	uopt->partition = 0xFFFF;
+	uopt->session = 0xFFFFFFFF;
+	uopt->lastblock = 0;
+	uopt->anchor = 0;
+	uopt->volume = 0xFFFFFFFF;
+	uopt->rootdir = 0xFFFFFFFF;
+	uopt->fileset = 0xFFFFFFFF;
+	uopt->nls_map = NULL;
+
+	if (!options)
+		return 1;
+
+	for (opt = strtok(options, ","); opt; opt = strtok(NULL, ","))
+	{
+		/* Make "opt=val" into two strings */
+		val = strchr(opt, '=');
+		if (val)
+			*(val++) = 0;
+		if (!strcmp(opt, "novrs") && !val)
+			uopt->novrs = 1;
+		else if (!strcmp(opt, "bs") && val)
+			uopt->blocksize = simple_strtoul(val, NULL, 0);
+		else if (!strcmp(opt, "unhide") && !val)
+			uopt->flags |= (1 << UDF_FLAG_UNHIDE);
+		else if (!strcmp(opt, "undelete") && !val)
+			uopt->flags |= (1 << UDF_FLAG_UNDELETE);
+		else if (!strcmp(opt, "noadinicb") && !val)
+			uopt->flags &= ~(1 << UDF_FLAG_USE_AD_IN_ICB);
+		else if (!strcmp(opt, "adinicb") && !val)
+			uopt->flags |= (1 << UDF_FLAG_USE_AD_IN_ICB);
+		else if (!strcmp(opt, "shortad") && !val)
+			uopt->flags |= (1 << UDF_FLAG_USE_SHORT_AD);
+		else if (!strcmp(opt, "longad") && !val)
+			uopt->flags &= ~(1 << UDF_FLAG_USE_SHORT_AD);
+		else if (!strcmp(opt, "gid") && val)
+			uopt->gid = simple_strtoul(val, NULL, 0);
+		else if (!strcmp(opt, "umask") && val)
+			uopt->umask = simple_strtoul(val, NULL, 0);
+		else if (!strcmp(opt, "nostrict") && !val)
+			uopt->flags &= ~(1 << UDF_FLAG_STRICT);
+		else if (!strcmp(opt, "uid") && val)
+			uopt->uid = simple_strtoul(val, NULL, 0);
+		else if (!strcmp(opt, "session") && val)
+			uopt->session = simple_strtoul(val, NULL, 0);
+		else if (!strcmp(opt, "lastblock") && val)
+			uopt->lastblock = simple_strtoul(val, NULL, 0);
+		else if (!strcmp(opt, "anchor") && val)
+			uopt->anchor = simple_strtoul(val, NULL, 0);
+		else if (!strcmp(opt, "volume") && val)
+			uopt->volume = simple_strtoul(val, NULL, 0);
+		else if (!strcmp(opt, "partition") && val)
+			uopt->partition = simple_strtoul(val, NULL, 0);
+		else if (!strcmp(opt, "fileset") && val)
+			uopt->fileset = simple_strtoul(val, NULL, 0);
+		else if (!strcmp(opt, "rootdir") && val)
+			uopt->rootdir = simple_strtoul(val, NULL, 0);
+#ifdef CONFIG_NLS
+		else if (!strcmp(opt, "iocharset") && val)
+		{
+			uopt->nls_map = load_nls(val);
+			uopt->flags |= (1 << UDF_FLAG_NLS_MAP);
+		}
+#endif
+		else if (!strcmp(opt, "utf8") && !val)
+			uopt->flags |= (1 << UDF_FLAG_UTF8);
+		else if (val)
+		{
+			printk(KERN_ERR "udf: bad mount option \"%s=%s\"\n",
+				opt, val);
+			return 0;
+		}
+		else
+		{
+			printk(KERN_ERR "udf: bad mount option \"%s\"\n",
+				opt);
+			return 0;
+		}
+	}
+	return 1;
+}
+
+void
+udf_write_super(struct super_block *sb)
+{
+	if (!(sb->s_flags & MS_RDONLY))
+		udf_open_lvid(sb);
+	sb->s_dirt = 0;
+}
+
+static int
+udf_remount_fs(struct super_block *sb, int *flags, char *options)
+{
+	struct udf_options uopt;
+
+	uopt.flags = UDF_SB(sb)->s_flags ;
+	uopt.uid   = UDF_SB(sb)->s_uid ;
+	uopt.gid   = UDF_SB(sb)->s_gid ;
+	uopt.umask = UDF_SB(sb)->s_umask ;
+
+	if ( !udf_parse_options(options, &uopt) )
+		return -EINVAL;
+
+	UDF_SB(sb)->s_flags = uopt.flags;
+	UDF_SB(sb)->s_uid   = uopt.uid;
+	UDF_SB(sb)->s_gid   = uopt.gid;
+	UDF_SB(sb)->s_umask = uopt.umask;
+
+#if UDFFS_RW != 1
+	*flags |= MS_RDONLY;
+#endif
+
+	if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
+		return 0;
+	if (*flags & MS_RDONLY)
+		udf_close_lvid(sb);
+	else
+		udf_open_lvid(sb);
+
+	return 0;
+}
+
+/*
+ * udf_set_blocksize
+ *
+ * PURPOSE
+ *	Set the block size to be used in all transfers.
+ *
+ * DESCRIPTION
+ *	To allow room for a DMA transfer, it is best to guess big when unsure.
+ *	This routine picks 2048 bytes as the blocksize when guessing. This
+ *	should be adequate until devices with larger block sizes become common.
+ *
+ *	Note that the Linux kernel can currently only deal with blocksizes of
+ *	512, 1024, 2048, 4096, and 8192 bytes.
+ *
+ * PRE-CONDITIONS
+ *	sb			Pointer to _locked_ superblock.
+ *
+ * POST-CONDITIONS
+ *	sb->s_blocksize		Blocksize.
+ *	sb->s_blocksize_bits	log2 of blocksize.
+ *	<return>	0	Blocksize is valid.
+ *	<return>	1	Blocksize is invalid.
+ *
+ * HISTORY
+ *	July 1, 1997 - Andrew E. Mileski
+ *	Written, tested, and released.
+ */
+static  int
+udf_set_blocksize(struct super_block *sb, int bsize)
+{
+	/* Use specified block size if specified */
+	if (bsize)
+		sb->s_blocksize = bsize;
+	if (get_hardsect_size(sb->s_dev) > sb->s_blocksize)
+		sb->s_blocksize = get_hardsect_size(sb->s_dev); 
+
+	/* Block size must be an even multiple of 512 */
+	switch (sb->s_blocksize)
+	{
+		case 512: sb->s_blocksize_bits = 9;	break;
+		case 1024: sb->s_blocksize_bits = 10; break;
+		case 2048: sb->s_blocksize_bits = 11; break;
+		case 4096: sb->s_blocksize_bits = 12; break;
+		case 8192: sb->s_blocksize_bits = 13; break;
+		default:
+		{
+			udf_debug("Bad block size (%ld)\n", sb->s_blocksize);
+			printk(KERN_ERR "udf: bad block size (%ld)\n", sb->s_blocksize);
+			return 0;
+		}
+	}
+
+	/* Set the block size */
+	set_blocksize(sb->s_dev, sb->s_blocksize);
+	return sb->s_blocksize;
+}
+
+static int
+udf_vrs(struct super_block *sb, int silent)
+{
+	struct volStructDesc *vsd = NULL;
+	int sector = 32768;
+	int sectorsize;
+	struct buffer_head *bh = NULL;
+	int iso9660=0;
+	int nsr02=0;
+	int nsr03=0;
+
+	/* Block size must be a multiple of 512 */
+	if (sb->s_blocksize & 511)
+		return 0;
+
+	if (sb->s_blocksize < sizeof(struct volStructDesc))
+		sectorsize = sizeof(struct volStructDesc);
+	else
+		sectorsize = sb->s_blocksize;
+
+	sector += (UDF_SB_SESSION(sb) << sb->s_blocksize_bits);
+
+	udf_debug("Starting at sector %u (%ld byte sectors)\n",
+		(sector >> sb->s_blocksize_bits), sb->s_blocksize);
+	/* Process the sequence (if applicable) */
+	for (;!nsr02 && !nsr03; sector += sectorsize)
+	{
+		/* Read a block */
+		bh = udf_tread(sb, sector >> sb->s_blocksize_bits);
+		if (!bh)
+			break;
+
+		/* Look for ISO  descriptors */
+		vsd = (struct volStructDesc *)(bh->b_data +
+			(sector & (sb->s_blocksize - 1)));
+
+		if (vsd->stdIdent[0] == 0)
+		{
+			udf_release_data(bh);
+			break;
+		}
+		else if (!strncmp(vsd->stdIdent, VSD_STD_ID_CD001, VSD_STD_ID_LEN))
+		{
+			iso9660 = sector;
+			switch (vsd->structType)
+			{
+				case 0: 
+					udf_debug("ISO9660 Boot Record found\n");
+					break;
+				case 1: 
+					udf_debug("ISO9660 Primary Volume Descriptor found\n");
+					break;
+				case 2: 
+					udf_debug("ISO9660 Supplementary Volume Descriptor found\n");
+					break;
+				case 3: 
+					udf_debug("ISO9660 Volume Partition Descriptor found\n");
+					break;
+				case 255: 
+					udf_debug("ISO9660 Volume Descriptor Set Terminator found\n");
+					break;
+				default: 
+					udf_debug("ISO9660 VRS (%u) found\n", vsd->structType);
+					break;
+			}
+		}
+		else if (!strncmp(vsd->stdIdent, VSD_STD_ID_BEA01, VSD_STD_ID_LEN))
+		{
+		}
+		else if (!strncmp(vsd->stdIdent, VSD_STD_ID_TEA01, VSD_STD_ID_LEN))
+		{
+			udf_release_data(bh);
+			break;
+		}
+		else if (!strncmp(vsd->stdIdent, VSD_STD_ID_NSR02, VSD_STD_ID_LEN))
+		{
+			nsr02 = sector;
+		}
+		else if (!strncmp(vsd->stdIdent, VSD_STD_ID_NSR03, VSD_STD_ID_LEN))
+		{
+			nsr03 = sector;
+		}
+		udf_release_data(bh);
+	}
+
+	if (nsr03)
+		return nsr03;
+	else if (nsr02)
+		return nsr02;
+	else if (sector - (UDF_SB_SESSION(sb) << sb->s_blocksize_bits) == 32768)
+		return -1;
+	else
+		return 0;
+}
+
+/*
+ * udf_find_anchor
+ *
+ * PURPOSE
+ *	Find an anchor volume descriptor.
+ *
+ * PRE-CONDITIONS
+ *	sb			Pointer to _locked_ superblock.
+ *	lastblock		Last block on media.
+ *
+ * POST-CONDITIONS
+ *	<return>		1 if not found, 0 if ok
+ *
+ * HISTORY
+ *	July 1, 1997 - Andrew E. Mileski
+ *	Written, tested, and released.
+ */
+static void
+udf_find_anchor(struct super_block *sb)
+{
+	int lastblock = UDF_SB_LASTBLOCK(sb);
+	struct buffer_head *bh = NULL;
+	uint16_t ident;
+	uint32_t location;
+	int i;
+
+	if (lastblock)
+	{
+		int varlastblock = udf_variable_to_fixed(lastblock);
+		int last[] =  { lastblock, lastblock - 2,
+				lastblock - 150, lastblock - 152,
+				varlastblock, varlastblock - 2,
+				varlastblock - 150, varlastblock - 152 };
+
+		lastblock = 0;
+
+		/* Search for an anchor volume descriptor pointer */
+
+		/*  according to spec, anchor is in either:
+		 *     block 256
+		 *     lastblock-256
+		 *     lastblock
+		 *  however, if the disc isn't closed, it could be 512 */
+
+		for (i=0; (!lastblock && i<sizeof(last)/sizeof(int)); i++)
+		{
+			if (last[i] < 0 || !(bh = sb_bread(sb, last[i])))
+			{
+				ident = location = 0;
+			}
+			else
+			{
+				ident = le16_to_cpu(((tag *)bh->b_data)->tagIdent);
+				location = le32_to_cpu(((tag *)bh->b_data)->tagLocation);
+				udf_release_data(bh);
+			}
+	
+			if (ident == TAG_IDENT_AVDP)
+			{
+				if (location == last[i] - UDF_SB_SESSION(sb))
+				{
+					lastblock = UDF_SB_ANCHOR(sb)[0] = last[i];
+					UDF_SB_ANCHOR(sb)[1] = last[i] - 256;
+				}
+				else if (location == udf_variable_to_fixed(last[i]) - UDF_SB_SESSION(sb))
+				{
+					UDF_SET_FLAG(sb, UDF_FLAG_VARCONV);
+					lastblock = UDF_SB_ANCHOR(sb)[0] = udf_variable_to_fixed(last[i]);
+					UDF_SB_ANCHOR(sb)[1] = lastblock - 256;
+				}
+				else
+					udf_debug("Anchor found at block %d, location mismatch %d.\n",
+						last[i], location);
+			}
+			else if (ident == TAG_IDENT_FE || ident == TAG_IDENT_EFE)
+			{
+				lastblock = last[i];
+				UDF_SB_ANCHOR(sb)[3] = 512 + UDF_SB_SESSION(sb);
+			}
+			else
+			{
+				if (last[i] < 256 || !(bh = sb_bread(sb, last[i] - 256)))
+				{
+					ident = location = 0;
+				}
+				else
+				{
+					ident = le16_to_cpu(((tag *)bh->b_data)->tagIdent);
+					location = le32_to_cpu(((tag *)bh->b_data)->tagLocation);
+					udf_release_data(bh);
+				}
+	
+				if (ident == TAG_IDENT_AVDP &&
+					location == last[i] - 256 - UDF_SB_SESSION(sb))
+				{
+					lastblock = last[i];
+					UDF_SB_ANCHOR(sb)[1] = last[i] - 256;
+				}
+				else
+				{
+					if (last[i] < 312 + UDF_SB_SESSION(sb) || !(bh = sb_bread(sb, last[i] - 312 - UDF_SB_SESSION(sb))))
+					{
+						ident = location = 0;
+					}
+					else
+					{
+						ident = le16_to_cpu(((tag *)bh->b_data)->tagIdent);
+						location = le32_to_cpu(((tag *)bh->b_data)->tagLocation);
+						udf_release_data(bh);
+					}
+	
+					if (ident == TAG_IDENT_AVDP &&
+						location == udf_variable_to_fixed(last[i]) - 256)
+					{
+						UDF_SET_FLAG(sb, UDF_FLAG_VARCONV);
+						lastblock = udf_variable_to_fixed(last[i]);
+						UDF_SB_ANCHOR(sb)[1] = lastblock - 256;
+					}
+				}
+			}
+		}
+	}
+
+	if (!lastblock)
+	{
+		/* We havn't found the lastblock. check 312 */
+		if ((bh = sb_bread(sb, 312 + UDF_SB_SESSION(sb))))
+		{
+			ident = le16_to_cpu(((tag *)bh->b_data)->tagIdent);
+			location = le32_to_cpu(((tag *)bh->b_data)->tagLocation);
+			udf_release_data(bh);
+
+			if (ident == TAG_IDENT_AVDP && location == 256)
+				UDF_SET_FLAG(sb, UDF_FLAG_VARCONV);
+		}
+	}
+
+	for (i=0; i<sizeof(UDF_SB_ANCHOR(sb))/sizeof(int); i++)
+	{
+		if (UDF_SB_ANCHOR(sb)[i])
+		{
+			if (!(bh = udf_read_tagged(sb,
+				UDF_SB_ANCHOR(sb)[i], UDF_SB_ANCHOR(sb)[i], &ident)))
+			{
+				UDF_SB_ANCHOR(sb)[i] = 0;
+			}
+			else
+			{
+				udf_release_data(bh);
+				if ((ident != TAG_IDENT_AVDP) && (i ||
+					(ident != TAG_IDENT_FE && ident != TAG_IDENT_EFE)))
+				{
+					UDF_SB_ANCHOR(sb)[i] = 0;
+				}
+			}
+		}
+	}
+
+	UDF_SB_LASTBLOCK(sb) = lastblock;
+}
+
+static int 
+udf_find_fileset(struct super_block *sb, lb_addr *fileset, lb_addr *root)
+{
+	struct buffer_head *bh = NULL;
+	long lastblock;
+	uint16_t ident;
+
+	if (fileset->logicalBlockNum != 0xFFFFFFFF ||
+		fileset->partitionReferenceNum != 0xFFFF)
+	{
+		bh = udf_read_ptagged(sb, *fileset, 0, &ident);
+
+		if (!bh)
+			return 1;
+		else if (ident != TAG_IDENT_FSD)
+		{
+			udf_release_data(bh);
+			return 1;
+		}
+			
+	}
+
+	if (!bh) /* Search backwards through the partitions */
+	{
+		lb_addr newfileset;
+
+		return 1;
+		
+		for (newfileset.partitionReferenceNum=UDF_SB_NUMPARTS(sb)-1;
+			(newfileset.partitionReferenceNum != 0xFFFF &&
+				fileset->logicalBlockNum == 0xFFFFFFFF &&
+				fileset->partitionReferenceNum == 0xFFFF);
+			newfileset.partitionReferenceNum--)
+		{
+			lastblock = UDF_SB_PARTLEN(sb, newfileset.partitionReferenceNum);
+			newfileset.logicalBlockNum = 0;
+
+			do
+			{
+				bh = udf_read_ptagged(sb, newfileset, 0, &ident);
+				if (!bh)
+				{
+					newfileset.logicalBlockNum ++;
+					continue;
+				}
+
+				switch (ident)
+				{
+					case TAG_IDENT_SBD:
+					{
+						struct spaceBitmapDesc *sp;
+						sp = (struct spaceBitmapDesc *)bh->b_data;
+						newfileset.logicalBlockNum += 1 +
+							((le32_to_cpu(sp->numOfBytes) + sizeof(struct spaceBitmapDesc) - 1)
+								>> sb->s_blocksize_bits);
+						udf_release_data(bh);
+						break;
+					}
+					case TAG_IDENT_FSD:
+					{
+						*fileset = newfileset;
+						break;
+					}
+					default:
+					{
+						newfileset.logicalBlockNum ++;
+						udf_release_data(bh);
+						bh = NULL;
+						break;
+					}
+				}
+			}
+			while (newfileset.logicalBlockNum < lastblock &&
+				fileset->logicalBlockNum == 0xFFFFFFFF &&
+				fileset->partitionReferenceNum == 0xFFFF);
+		}
+	}
+
+	if ((fileset->logicalBlockNum != 0xFFFFFFFF ||
+		fileset->partitionReferenceNum != 0xFFFF) && bh)
+	{
+		udf_debug("Fileset at block=%d, partition=%d\n",
+			fileset->logicalBlockNum, fileset->partitionReferenceNum);
+
+		UDF_SB_PARTITION(sb) = fileset->partitionReferenceNum;
+		udf_load_fileset(sb, bh, root);
+		udf_release_data(bh);
+		return 0;
+	}
+	return 1;
+}
+
+static void 
+udf_load_pvoldesc(struct super_block *sb, struct buffer_head *bh)
+{
+	struct primaryVolDesc *pvoldesc;
+	time_t recording;
+	long recording_usec;
+	struct ustr instr;
+	struct ustr outstr;
+
+	pvoldesc = (struct primaryVolDesc *)bh->b_data;
+
+	if ( udf_stamp_to_time(&recording, &recording_usec,
+		lets_to_cpu(pvoldesc->recordingDateAndTime)) )
+	{
+		timestamp ts;
+		ts = lets_to_cpu(pvoldesc->recordingDateAndTime);
+		udf_debug("recording time %ld/%ld, %04u/%02u/%02u %02u:%02u (%x)\n",
+			recording, recording_usec,
+			ts.year, ts.month, ts.day, ts.hour, ts.minute, ts.typeAndTimezone);
+		UDF_SB_RECORDTIME(sb) = recording;
+	}
+
+	if ( !udf_build_ustr(&instr, pvoldesc->volIdent, 32) )
+	{
+		if (udf_CS0toUTF8(&outstr, &instr))
+		{
+			strncpy( UDF_SB_VOLIDENT(sb), outstr.u_name,
+				outstr.u_len > 31 ? 31 : outstr.u_len);
+			udf_debug("volIdent[] = '%s'\n", UDF_SB_VOLIDENT(sb));
+		}
+	}
+
+	if ( !udf_build_ustr(&instr, pvoldesc->volSetIdent, 128) )
+	{
+		if (udf_CS0toUTF8(&outstr, &instr))
+			udf_debug("volSetIdent[] = '%s'\n", outstr.u_name);
+	}
+}
+
+static void 
+udf_load_fileset(struct super_block *sb, struct buffer_head *bh, lb_addr *root)
+{
+	struct fileSetDesc *fset;
+
+	fset = (struct fileSetDesc *)bh->b_data;
+
+	*root = lelb_to_cpu(fset->rootDirectoryICB.extLocation);
+
+	UDF_SB_SERIALNUM(sb) = le16_to_cpu(fset->descTag.tagSerialNum);
+
+	udf_debug("Rootdir at block=%d, partition=%d\n", 
+		root->logicalBlockNum, root->partitionReferenceNum);
+}
+
+static void 
+udf_load_partdesc(struct super_block *sb, struct buffer_head *bh)
+{
+	struct partitionDesc *p;
+	int i;
+
+	p = (struct partitionDesc *)bh->b_data;
+
+	for (i=0; i<UDF_SB_NUMPARTS(sb); i++)
+	{
+		udf_debug("Searching map: (%d == %d)\n", 
+			UDF_SB_PARTMAPS(sb)[i].s_partition_num, le16_to_cpu(p->partitionNumber));
+		if (UDF_SB_PARTMAPS(sb)[i].s_partition_num == le16_to_cpu(p->partitionNumber))
+		{
+			UDF_SB_PARTLEN(sb,i) = le32_to_cpu(p->partitionLength); /* blocks */
+			UDF_SB_PARTROOT(sb,i) = le32_to_cpu(p->partitionStartingLocation) + UDF_SB_SESSION(sb);
+			if (le32_to_cpu(p->accessType) == PD_ACCESS_TYPE_READ_ONLY)
+				UDF_SB_PARTFLAGS(sb,i) |= UDF_PART_FLAG_READ_ONLY;
+			if (le32_to_cpu(p->accessType) == PD_ACCESS_TYPE_WRITE_ONCE)
+				UDF_SB_PARTFLAGS(sb,i) |= UDF_PART_FLAG_WRITE_ONCE;
+			if (le32_to_cpu(p->accessType) == PD_ACCESS_TYPE_REWRITABLE)
+				UDF_SB_PARTFLAGS(sb,i) |= UDF_PART_FLAG_REWRITABLE;
+			if (le32_to_cpu(p->accessType) == PD_ACCESS_TYPE_OVERWRITABLE)
+				UDF_SB_PARTFLAGS(sb,i) |= UDF_PART_FLAG_OVERWRITABLE;
+
+			if (!strcmp(p->partitionContents.ident, PD_PARTITION_CONTENTS_NSR02) ||
+				!strcmp(p->partitionContents.ident, PD_PARTITION_CONTENTS_NSR03))
+			{
+				struct partitionHeaderDesc *phd;
+
+				phd = (struct partitionHeaderDesc *)(p->partitionContentsUse);
+				if (phd->unallocSpaceTable.extLength)
+				{
+					lb_addr loc = { le32_to_cpu(phd->unallocSpaceTable.extPosition), i };
+
+					UDF_SB_PARTMAPS(sb)[i].s_uspace.s_table =
+						udf_iget(sb, loc);
+					UDF_SB_PARTFLAGS(sb,i) |= UDF_PART_FLAG_UNALLOC_TABLE;
+					udf_debug("unallocSpaceTable (part %d) @ %ld\n",
+						i, UDF_SB_PARTMAPS(sb)[i].s_uspace.s_table->i_ino);
+				}
+				if (phd->unallocSpaceBitmap.extLength)
+				{
+					UDF_SB_ALLOC_BITMAP(sb, i, s_uspace);
+					if (UDF_SB_PARTMAPS(sb)[i].s_uspace.s_bitmap != NULL)
+					{
+						UDF_SB_PARTMAPS(sb)[i].s_uspace.s_bitmap->s_extLength =
+							le32_to_cpu(phd->unallocSpaceBitmap.extLength);
+						UDF_SB_PARTMAPS(sb)[i].s_uspace.s_bitmap->s_extPosition =
+							le32_to_cpu(phd->unallocSpaceBitmap.extPosition);
+						UDF_SB_PARTFLAGS(sb,i) |= UDF_PART_FLAG_UNALLOC_BITMAP;
+						udf_debug("unallocSpaceBitmap (part %d) @ %d\n",
+							i, UDF_SB_PARTMAPS(sb)[i].s_uspace.s_bitmap->s_extPosition);
+					}
+				}
+				if (phd->partitionIntegrityTable.extLength)
+					udf_debug("partitionIntegrityTable (part %d)\n", i);
+				if (phd->freedSpaceTable.extLength)
+				{
+					lb_addr loc = { le32_to_cpu(phd->freedSpaceTable.extPosition), i };
+
+					UDF_SB_PARTMAPS(sb)[i].s_fspace.s_table =
+						udf_iget(sb, loc);
+					UDF_SB_PARTFLAGS(sb,i) |= UDF_PART_FLAG_FREED_TABLE;
+					udf_debug("freedSpaceTable (part %d) @ %ld\n",
+						i, UDF_SB_PARTMAPS(sb)[i].s_fspace.s_table->i_ino);
+				}
+				if (phd->freedSpaceBitmap.extLength)
+				{
+					UDF_SB_ALLOC_BITMAP(sb, i, s_fspace);
+					if (UDF_SB_PARTMAPS(sb)[i].s_fspace.s_bitmap != NULL)
+					{
+						UDF_SB_PARTMAPS(sb)[i].s_fspace.s_bitmap->s_extLength =
+							le32_to_cpu(phd->freedSpaceBitmap.extLength);
+						UDF_SB_PARTMAPS(sb)[i].s_fspace.s_bitmap->s_extPosition =
+							le32_to_cpu(phd->freedSpaceBitmap.extPosition);
+						UDF_SB_PARTFLAGS(sb,i) |= UDF_PART_FLAG_FREED_BITMAP;
+						udf_debug("freedSpaceBitmap (part %d) @ %d\n",
+							i, UDF_SB_PARTMAPS(sb)[i].s_fspace.s_bitmap->s_extPosition);
+					}
+				}
+			}
+			break;
+		}
+	}
+	if (i == UDF_SB_NUMPARTS(sb))
+	{
+		udf_debug("Partition (%d) not found in partition map\n", le16_to_cpu(p->partitionNumber));
+	}
+	else
+	{
+		udf_debug("Partition (%d:%d type %x) starts at physical %d, block length %d\n",
+			le16_to_cpu(p->partitionNumber), i, UDF_SB_PARTTYPE(sb,i),
+			UDF_SB_PARTROOT(sb,i), UDF_SB_PARTLEN(sb,i));
+	}
+}
+
+static int 
+udf_load_logicalvol(struct super_block *sb, struct buffer_head * bh, lb_addr *fileset)
+{
+	struct logicalVolDesc *lvd;
+	int i, j, offset;
+	uint8_t type;
+
+	lvd = (struct logicalVolDesc *)bh->b_data;
+
+	UDF_SB_ALLOC_PARTMAPS(sb, le32_to_cpu(lvd->numPartitionMaps));
+
+	for (i=0,offset=0;
+		 i<UDF_SB_NUMPARTS(sb) && offset<le32_to_cpu(lvd->mapTableLength);
+		 i++,offset+=((struct genericPartitionMap *)&(lvd->partitionMaps[offset]))->partitionMapLength)
+	{
+		type = ((struct genericPartitionMap *)&(lvd->partitionMaps[offset]))->partitionMapType;
+		if (type == 1)
+		{
+			struct genericPartitionMap1 *gpm1 = (struct genericPartitionMap1 *)&(lvd->partitionMaps[offset]);
+			UDF_SB_PARTTYPE(sb,i) = UDF_TYPE1_MAP15;
+			UDF_SB_PARTVSN(sb,i) = le16_to_cpu(gpm1->volSeqNum);
+			UDF_SB_PARTNUM(sb,i) = le16_to_cpu(gpm1->partitionNum);
+			UDF_SB_PARTFUNC(sb,i) = NULL;
+		}
+		else if (type == 2)
+		{
+			struct udfPartitionMap2 *upm2 = (struct udfPartitionMap2 *)&(lvd->partitionMaps[offset]);
+			if (!strncmp(upm2->partIdent.ident, UDF_ID_VIRTUAL, strlen(UDF_ID_VIRTUAL)))
+			{
+				if (le16_to_cpu(((uint16_t *)upm2->partIdent.identSuffix)[0]) == 0x0150)
+				{
+					UDF_SB_PARTTYPE(sb,i) = UDF_VIRTUAL_MAP15;
+					UDF_SB_PARTFUNC(sb,i) = udf_get_pblock_virt15;
+				}
+				else if (le16_to_cpu(((uint16_t *)upm2->partIdent.identSuffix)[0]) == 0x0200)
+				{
+					UDF_SB_PARTTYPE(sb,i) = UDF_VIRTUAL_MAP20;
+					UDF_SB_PARTFUNC(sb,i) = udf_get_pblock_virt20;
+				}
+			}
+			else if (!strncmp(upm2->partIdent.ident, UDF_ID_SPARABLE, strlen(UDF_ID_SPARABLE)))
+			{
+				uint32_t loc;
+				uint16_t ident;
+				struct sparingTable *st;
+				struct sparablePartitionMap *spm = (struct sparablePartitionMap *)&(lvd->partitionMaps[offset]);
+
+				UDF_SB_PARTTYPE(sb,i) = UDF_SPARABLE_MAP15;
+				UDF_SB_TYPESPAR(sb,i).s_packet_len = le16_to_cpu(spm->packetLength);
+				for (j=0; j<spm->numSparingTables; j++)
+				{
+					loc = le32_to_cpu(spm->locSparingTable[j]);
+					UDF_SB_TYPESPAR(sb,i).s_spar_map[j] =
+						udf_read_tagged(sb, loc, loc, &ident);
+					if (UDF_SB_TYPESPAR(sb,i).s_spar_map[j] != NULL)
+					{
+						st = (struct sparingTable *)UDF_SB_TYPESPAR(sb,i).s_spar_map[j]->b_data;
+						if (ident != 0 ||
+							strncmp(st->sparingIdent.ident, UDF_ID_SPARING, strlen(UDF_ID_SPARING)))
+						{
+							udf_release_data(UDF_SB_TYPESPAR(sb,i).s_spar_map[j]);
+							UDF_SB_TYPESPAR(sb,i).s_spar_map[j] = NULL;
+						}
+					}
+				}
+				UDF_SB_PARTFUNC(sb,i) = udf_get_pblock_spar15;
+			}
+			else
+			{
+				udf_debug("Unknown ident: %s\n", upm2->partIdent.ident);
+				continue;
+			}
+			UDF_SB_PARTVSN(sb,i) = le16_to_cpu(upm2->volSeqNum);
+			UDF_SB_PARTNUM(sb,i) = le16_to_cpu(upm2->partitionNum);
+		}
+		udf_debug("Partition (%d:%d) type %d on volume %d\n",
+			i, UDF_SB_PARTNUM(sb,i), type, UDF_SB_PARTVSN(sb,i));
+	}
+
+	if (fileset)
+	{
+		long_ad *la = (long_ad *)&(lvd->logicalVolContentsUse[0]);
+
+		*fileset = lelb_to_cpu(la->extLocation);
+		udf_debug("FileSet found in LogicalVolDesc at block=%d, partition=%d\n",
+			fileset->logicalBlockNum,
+			fileset->partitionReferenceNum);
+	}
+	if (lvd->integritySeqExt.extLength)
+		udf_load_logicalvolint(sb, leea_to_cpu(lvd->integritySeqExt));
+	return 0;
+}
+
+/*
+ * udf_load_logicalvolint
+ *
+ */
+static void
+udf_load_logicalvolint(struct super_block *sb, extent_ad loc)
+{
+	struct buffer_head *bh = NULL;
+	uint16_t ident;
+
+	while (loc.extLength > 0 &&
+		(bh = udf_read_tagged(sb, loc.extLocation,
+			loc.extLocation, &ident)) &&
+		ident == TAG_IDENT_LVID)
+	{
+		UDF_SB_LVIDBH(sb) = bh;
+		
+		if (UDF_SB_LVID(sb)->nextIntegrityExt.extLength)
+			udf_load_logicalvolint(sb, leea_to_cpu(UDF_SB_LVID(sb)->nextIntegrityExt));
+		
+		if (UDF_SB_LVIDBH(sb) != bh)
+			udf_release_data(bh);
+		loc.extLength -= sb->s_blocksize;
+		loc.extLocation ++;
+	}
+	if (UDF_SB_LVIDBH(sb) != bh)
+		udf_release_data(bh);
+}
+
+/*
+ * udf_process_sequence
+ *
+ * PURPOSE
+ *	Process a main/reserve volume descriptor sequence.
+ *
+ * PRE-CONDITIONS
+ *	sb			Pointer to _locked_ superblock.
+ *	block			First block of first extent of the sequence.
+ *	lastblock		Lastblock of first extent of the sequence.
+ *
+ * HISTORY
+ *	July 1, 1997 - Andrew E. Mileski
+ *	Written, tested, and released.
+ */
+static  int
+udf_process_sequence(struct super_block *sb, long block, long lastblock, lb_addr *fileset)
+{
+	struct buffer_head *bh = NULL;
+	struct udf_vds_record vds[VDS_POS_LENGTH];
+	struct generic_desc *gd;
+	struct volDescPtr *vdp;
+	int done=0;
+	int i,j;
+	uint32_t vdsn;
+	uint16_t ident;
+	long next_s = 0, next_e = 0;
+
+	memset(vds, 0, sizeof(struct udf_vds_record) * VDS_POS_LENGTH);
+
+	/* Read the main descriptor sequence */
+	for (;(!done && block <= lastblock); block++)
+	{
+
+		bh = udf_read_tagged(sb, block, block, &ident);
+		if (!bh) 
+			break;
+
+		/* Process each descriptor (ISO 13346 3/8.3-8.4) */
+		gd = (struct generic_desc *)bh->b_data;
+		vdsn = le32_to_cpu(gd->volDescSeqNum);
+		switch (ident)
+		{
+			case TAG_IDENT_PVD: /* ISO 13346 3/10.1 */
+				if (vdsn >= vds[VDS_POS_PRIMARY_VOL_DESC].volDescSeqNum)
+				{
+					vds[VDS_POS_PRIMARY_VOL_DESC].volDescSeqNum = vdsn;
+					vds[VDS_POS_PRIMARY_VOL_DESC].block = block;
+				}
+				break;
+			case TAG_IDENT_VDP: /* ISO 13346 3/10.3 */
+				if (vdsn >= vds[VDS_POS_VOL_DESC_PTR].volDescSeqNum)
+				{
+					vds[VDS_POS_VOL_DESC_PTR].volDescSeqNum = vdsn;
+					vds[VDS_POS_VOL_DESC_PTR].block = block;
+
+					vdp = (struct volDescPtr *)bh->b_data;
+					next_s = le32_to_cpu(vdp->nextVolDescSeqExt.extLocation);
+					next_e = le32_to_cpu(vdp->nextVolDescSeqExt.extLength);
+					next_e = next_e >> sb->s_blocksize_bits;
+					next_e += next_s;
+				}
+				break;
+			case TAG_IDENT_IUVD: /* ISO 13346 3/10.4 */
+				if (vdsn >= vds[VDS_POS_IMP_USE_VOL_DESC].volDescSeqNum)
+				{
+					vds[VDS_POS_IMP_USE_VOL_DESC].volDescSeqNum = vdsn;
+					vds[VDS_POS_IMP_USE_VOL_DESC].block = block;
+				}
+				break;
+			case TAG_IDENT_PD: /* ISO 13346 3/10.5 */
+				if (!vds[VDS_POS_PARTITION_DESC].block)
+					vds[VDS_POS_PARTITION_DESC].block = block;
+				break;
+			case TAG_IDENT_LVD: /* ISO 13346 3/10.6 */
+				if (vdsn >= vds[VDS_POS_LOGICAL_VOL_DESC].volDescSeqNum)
+				{
+					vds[VDS_POS_LOGICAL_VOL_DESC].volDescSeqNum = vdsn;
+					vds[VDS_POS_LOGICAL_VOL_DESC].block = block;
+				}
+				break;
+			case TAG_IDENT_USD: /* ISO 13346 3/10.8 */
+				if (vdsn >= vds[VDS_POS_UNALLOC_SPACE_DESC].volDescSeqNum)
+				{
+					vds[VDS_POS_UNALLOC_SPACE_DESC].volDescSeqNum = vdsn;
+					vds[VDS_POS_UNALLOC_SPACE_DESC].block = block;
+				}
+				break;
+			case TAG_IDENT_TD: /* ISO 13346 3/10.9 */
+				vds[VDS_POS_TERMINATING_DESC].block = block;
+				if (next_e)
+				{
+					block = next_s;
+					lastblock = next_e;
+					next_s = next_e = 0;
+				}
+				else
+					done = 1;
+				break;
+		}
+		udf_release_data(bh);
+	}
+	for (i=0; i<VDS_POS_LENGTH; i++)
+	{
+		if (vds[i].block)
+		{
+			bh = udf_read_tagged(sb, vds[i].block, vds[i].block, &ident);
+
+			if (i == VDS_POS_PRIMARY_VOL_DESC)
+				udf_load_pvoldesc(sb, bh);
+			else if (i == VDS_POS_LOGICAL_VOL_DESC)
+				udf_load_logicalvol(sb, bh, fileset);
+			else if (i == VDS_POS_PARTITION_DESC)
+			{
+				struct buffer_head *bh2 = NULL;
+				udf_load_partdesc(sb, bh);
+				for (j=vds[i].block+1; j<vds[VDS_POS_TERMINATING_DESC].block; j++)
+				{
+					bh2 = udf_read_tagged(sb, j, j, &ident);
+					gd = (struct generic_desc *)bh2->b_data;
+					if (ident == TAG_IDENT_PD)
+						udf_load_partdesc(sb, bh2);
+					udf_release_data(bh2);
+				}
+			}
+			udf_release_data(bh);
+		}
+	}
+
+	return 0;
+}
+
+/*
+ * udf_check_valid()
+ */
+static int
+udf_check_valid(struct super_block *sb, int novrs, int silent)
+{
+	long block;
+
+	if (novrs)
+	{
+		udf_debug("Validity check skipped because of novrs option\n");
+		return 0;
+	}
+	/* Check that it is NSR02 compliant */
+	/* Process any "CD-ROM Volume Descriptor Set" (ECMA 167 2/8.3.1) */
+	else if ((block = udf_vrs(sb, silent)) == -1)
+	{
+		udf_debug("Failed to read byte 32768. Assuming open disc. Skipping validity check\n");
+		if (!UDF_SB_LASTBLOCK(sb))
+			UDF_SB_LASTBLOCK(sb) = udf_get_last_block(sb);
+		return 0;
+	}
+	else 
+		return !block;
+}
+
+static int
+udf_load_partition(struct super_block *sb, lb_addr *fileset)
+{
+	struct anchorVolDescPtr *anchor;
+	uint16_t ident;
+	struct buffer_head *bh;
+	long main_s, main_e, reserve_s, reserve_e;
+	int i, j;
+
+	if (!sb)
+		return 1;
+
+	for (i=0; i<sizeof(UDF_SB_ANCHOR(sb))/sizeof(int); i++)
+	{
+		if (UDF_SB_ANCHOR(sb)[i] && (bh = udf_read_tagged(sb,
+			UDF_SB_ANCHOR(sb)[i], UDF_SB_ANCHOR(sb)[i], &ident)))
+		{
+			anchor = (struct anchorVolDescPtr *)bh->b_data;
+
+			/* Locate the main sequence */
+			main_s = le32_to_cpu( anchor->mainVolDescSeqExt.extLocation );
+			main_e = le32_to_cpu( anchor->mainVolDescSeqExt.extLength );
+			main_e = main_e >> sb->s_blocksize_bits;
+			main_e += main_s;
+	
+			/* Locate the reserve sequence */
+			reserve_s = le32_to_cpu(anchor->reserveVolDescSeqExt.extLocation);
+			reserve_e = le32_to_cpu(anchor->reserveVolDescSeqExt.extLength);
+			reserve_e = reserve_e >> sb->s_blocksize_bits;
+			reserve_e += reserve_s;
+
+			udf_release_data(bh);
+
+			/* Process the main & reserve sequences */
+			/* responsible for finding the PartitionDesc(s) */
+			if (!(udf_process_sequence(sb, main_s, main_e, fileset) &&
+				udf_process_sequence(sb, reserve_s, reserve_e, fileset)))
+			{
+				break;
+			}
+		}
+	}
+
+	if (i == sizeof(UDF_SB_ANCHOR(sb))/sizeof(int))
+	{
+		udf_debug("No Anchor block found\n");
+		return 1;
+	}
+	else
+		udf_debug("Using anchor in block %d\n", UDF_SB_ANCHOR(sb)[i]);
+
+	for (i=0; i<UDF_SB_NUMPARTS(sb); i++)
+	{
+		switch UDF_SB_PARTTYPE(sb, i)
+		{
+			case UDF_VIRTUAL_MAP15:
+			case UDF_VIRTUAL_MAP20:
+			{
+				lb_addr ino;
+
+				if (!UDF_SB_LASTBLOCK(sb))
+				{
+					UDF_SB_LASTBLOCK(sb) = udf_get_last_block(sb);
+					udf_find_anchor(sb);
+				}
+
+				if (!UDF_SB_LASTBLOCK(sb))
+				{
+					udf_debug("Unable to determine Lastblock (For Virtual Partition)\n");
+					return 1;
+				}
+
+				for (j=0; j<UDF_SB_NUMPARTS(sb); j++)
+				{
+					if (j != i &&
+						UDF_SB_PARTVSN(sb,i) == UDF_SB_PARTVSN(sb,j) &&
+						UDF_SB_PARTNUM(sb,i) == UDF_SB_PARTNUM(sb,j))
+					{
+						ino.partitionReferenceNum = j;
+						ino.logicalBlockNum = UDF_SB_LASTBLOCK(sb) -
+							UDF_SB_PARTROOT(sb,j);
+						break;
+					}
+				}
+
+				if (j == UDF_SB_NUMPARTS(sb))
+					return 1;
+
+				if (!(UDF_SB_VAT(sb) = udf_iget(sb, ino)))
+					return 1;
+
+				if (UDF_SB_PARTTYPE(sb,i) == UDF_VIRTUAL_MAP15)
+				{
+					UDF_SB_TYPEVIRT(sb,i).s_start_offset = udf_ext0_offset(UDF_SB_VAT(sb));
+					UDF_SB_TYPEVIRT(sb,i).s_num_entries = (UDF_SB_VAT(sb)->i_size - 36) >> 2;
+				}
+				else if (UDF_SB_PARTTYPE(sb,i) == UDF_VIRTUAL_MAP20)
+				{
+					struct buffer_head *bh = NULL;
+					uint32_t pos;
+
+					pos = udf_block_map(UDF_SB_VAT(sb), 0);
+					bh = sb_bread(sb, pos);
+					UDF_SB_TYPEVIRT(sb,i).s_start_offset =
+						le16_to_cpu(((struct virtualAllocationTable20 *)bh->b_data + udf_ext0_offset(UDF_SB_VAT(sb)))->lengthHeader) +
+							udf_ext0_offset(UDF_SB_VAT(sb));
+					UDF_SB_TYPEVIRT(sb,i).s_num_entries = (UDF_SB_VAT(sb)->i_size -
+						UDF_SB_TYPEVIRT(sb,i).s_start_offset) >> 2;
+					udf_release_data(bh);
+				}
+				UDF_SB_PARTROOT(sb,i) = udf_get_pblock(sb, 0, i, 0);
+				UDF_SB_PARTLEN(sb,i) = UDF_SB_PARTLEN(sb,ino.partitionReferenceNum);
+			}
+		}
+	}
+	return 0;
+}
+
+static void udf_open_lvid(struct super_block *sb)
+{
+	if (UDF_SB_LVIDBH(sb))
+	{
+		int i;
+		timestamp cpu_time;
+
+		UDF_SB_LVIDIU(sb)->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
+		UDF_SB_LVIDIU(sb)->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
+		if (udf_time_to_stamp(&cpu_time, CURRENT_TIME, CURRENT_UTIME))
+			UDF_SB_LVID(sb)->recordingDateAndTime = cpu_to_lets(cpu_time);
+		UDF_SB_LVID(sb)->integrityType = LVID_INTEGRITY_TYPE_OPEN;
+
+		UDF_SB_LVID(sb)->descTag.descCRC =
+			cpu_to_le16(udf_crc((char *)UDF_SB_LVID(sb) + sizeof(tag),
+			le16_to_cpu(UDF_SB_LVID(sb)->descTag.descCRCLength), 0));
+
+		UDF_SB_LVID(sb)->descTag.tagChecksum = 0;
+		for (i=0; i<16; i++)
+			if (i != 4)
+				UDF_SB_LVID(sb)->descTag.tagChecksum +=
+					((uint8_t *)&(UDF_SB_LVID(sb)->descTag))[i];
+
+		mark_buffer_dirty(UDF_SB_LVIDBH(sb));
+	}
+}
+
+static void udf_close_lvid(struct super_block *sb)
+{
+	if (UDF_SB_LVIDBH(sb) &&
+		UDF_SB_LVID(sb)->integrityType == LVID_INTEGRITY_TYPE_OPEN)
+	{
+		int i;
+		timestamp cpu_time;
+
+		UDF_SB_LVIDIU(sb)->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
+		UDF_SB_LVIDIU(sb)->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
+		if (udf_time_to_stamp(&cpu_time, CURRENT_TIME, CURRENT_UTIME))
+			UDF_SB_LVID(sb)->recordingDateAndTime = cpu_to_lets(cpu_time);
+		if (UDF_MAX_WRITE_VERSION > le16_to_cpu(UDF_SB_LVIDIU(sb)->maxUDFWriteRev))
+			UDF_SB_LVIDIU(sb)->maxUDFWriteRev = cpu_to_le16(UDF_MAX_WRITE_VERSION);
+		if (UDF_SB_UDFREV(sb) > le16_to_cpu(UDF_SB_LVIDIU(sb)->minUDFReadRev))
+			UDF_SB_LVIDIU(sb)->minUDFReadRev = cpu_to_le16(UDF_SB_UDFREV(sb));
+		if (UDF_SB_UDFREV(sb) > le16_to_cpu(UDF_SB_LVIDIU(sb)->minUDFWriteRev))
+			UDF_SB_LVIDIU(sb)->minUDFWriteRev = cpu_to_le16(UDF_SB_UDFREV(sb));
+		UDF_SB_LVID(sb)->integrityType = LVID_INTEGRITY_TYPE_CLOSE;
+
+		UDF_SB_LVID(sb)->descTag.descCRC =
+			cpu_to_le16(udf_crc((char *)UDF_SB_LVID(sb) + sizeof(tag),
+			le16_to_cpu(UDF_SB_LVID(sb)->descTag.descCRCLength), 0));
+
+		UDF_SB_LVID(sb)->descTag.tagChecksum = 0;
+		for (i=0; i<16; i++)
+			if (i != 4)
+				UDF_SB_LVID(sb)->descTag.tagChecksum +=
+					((uint8_t *)&(UDF_SB_LVID(sb)->descTag))[i];
+
+		mark_buffer_dirty(UDF_SB_LVIDBH(sb));
+	}
+}
+
+/*
+ * udf_read_super
+ *
+ * PURPOSE
+ *	Complete the specified super block.
+ *
+ * PRE-CONDITIONS
+ *	sb			Pointer to superblock to complete - never NULL.
+ *	sb->s_dev		Device to read suberblock from.
+ *	options			Pointer to mount options.
+ *	silent			Silent flag.
+ *
+ * HISTORY
+ *	July 1, 1997 - Andrew E. Mileski
+ *	Written, tested, and released.
+ */
+static struct super_block *
+udf_read_super(struct super_block *sb, void *options, int silent)
+{
+	int i;
+	struct inode *inode=NULL;
+	struct udf_options uopt;
+	lb_addr rootdir, fileset;
+
+	uopt.flags = (1 << UDF_FLAG_USE_AD_IN_ICB) | (1 << UDF_FLAG_STRICT);
+	uopt.uid = -1;
+	uopt.gid = -1;
+	uopt.umask = 0;
+
+	memset(UDF_SB(sb), 0x00, sizeof(struct udf_sb_info));
+
+#if UDFFS_RW != 1
+	sb->s_flags |= MS_RDONLY;
+#endif
+
+	if (!udf_parse_options((char *)options, &uopt))
+		goto error_out;
+
+	if (uopt.flags & (1 << UDF_FLAG_UTF8) &&
+	    uopt.flags & (1 << UDF_FLAG_NLS_MAP))
+	{
+		udf_error(sb, "udf_read_super",
+			"utf8 cannot be combined with iocharset\n");
+		goto error_out;
+	}
+#ifdef CONFIG_NLS
+	if ((uopt.flags & (1 << UDF_FLAG_NLS_MAP)) && !uopt.nls_map)
+	{
+		uopt.nls_map = load_nls_default();
+		if (!uopt.nls_map)
+			uopt.flags &= ~(1 << UDF_FLAG_NLS_MAP);
+		else
+			udf_debug("Using default NLS map\n");
+	}
+#endif
+	if (!(uopt.flags & (1 << UDF_FLAG_NLS_MAP)))
+		uopt.flags |= (1 << UDF_FLAG_UTF8);
+
+	fileset.logicalBlockNum = 0xFFFFFFFF;
+	fileset.partitionReferenceNum = 0xFFFF;
+
+	UDF_SB(sb)->s_flags = uopt.flags;
+	UDF_SB(sb)->s_uid = uopt.uid;
+	UDF_SB(sb)->s_gid = uopt.gid;
+	UDF_SB(sb)->s_umask = uopt.umask;
+	UDF_SB(sb)->s_nls_map = uopt.nls_map;
+
+	/* Set the block size for all transfers */
+	if (!udf_set_blocksize(sb, uopt.blocksize))
+		goto error_out;
+
+	if ( uopt.session == 0xFFFFFFFF )
+		UDF_SB_SESSION(sb) = udf_get_last_session(sb);
+	else
+		UDF_SB_SESSION(sb) = uopt.session;
+
+	udf_debug("Multi-session=%d\n", UDF_SB_SESSION(sb));
+
+	UDF_SB_LASTBLOCK(sb) = uopt.lastblock;
+	UDF_SB_ANCHOR(sb)[0] = UDF_SB_ANCHOR(sb)[1] = 0;
+	UDF_SB_ANCHOR(sb)[2] = uopt.anchor;
+	UDF_SB_ANCHOR(sb)[3] = UDF_SB_SESSION(sb) + 256;
+
+	if (udf_check_valid(sb, uopt.novrs, silent)) /* read volume recognition sequences */
+	{
+		printk("UDF-fs: No VRS found\n");
+ 		goto error_out;
+	}
+
+	udf_find_anchor(sb);
+
+	/* Fill in the rest of the superblock */
+	sb->s_op = &udf_sb_ops;
+	sb->dq_op = NULL;
+	sb->s_dirt = 0;
+	sb->s_magic = UDF_SUPER_MAGIC;
+
+	if (udf_load_partition(sb, &fileset))
+	{
+		printk("UDF-fs: No partition found (1)\n");
+		goto error_out;
+	}
+
+	udf_debug("Lastblock=%d\n", UDF_SB_LASTBLOCK(sb));
+
+	if ( UDF_SB_LVIDBH(sb) )
+	{
+		uint16_t minUDFReadRev = le16_to_cpu(UDF_SB_LVIDIU(sb)->minUDFReadRev);
+		uint16_t minUDFWriteRev = le16_to_cpu(UDF_SB_LVIDIU(sb)->minUDFWriteRev);
+		/* uint16_t maxUDFWriteRev = le16_to_cpu(UDF_SB_LVIDIU(sb)->maxUDFWriteRev); */
+
+		if (minUDFReadRev > UDF_MAX_READ_VERSION)
+		{
+			printk("UDF-fs: minUDFReadRev=%x (max is %x)\n",
+				UDF_SB_LVIDIU(sb)->minUDFReadRev, UDF_MAX_READ_VERSION);
+			goto error_out;
+		}
+		else if (minUDFWriteRev > UDF_MAX_WRITE_VERSION)
+		{
+			sb->s_flags |= MS_RDONLY;
+		}
+
+		UDF_SB_UDFREV(sb) = minUDFWriteRev;
+
+		if (minUDFReadRev >= UDF_VERS_USE_EXTENDED_FE)
+			UDF_SET_FLAG(sb, UDF_FLAG_USE_EXTENDED_FE);
+		if (minUDFReadRev >= UDF_VERS_USE_STREAMS)
+			UDF_SET_FLAG(sb, UDF_FLAG_USE_STREAMS);
+	}
+
+	if ( !UDF_SB_NUMPARTS(sb) )
+	{
+		printk("UDF-fs: No partition found (2)\n");
+		goto error_out;
+	}
+
+	if ( udf_find_fileset(sb, &fileset, &rootdir) )
+	{
+		printk("UDF-fs: No fileset found\n");
+		goto error_out;
+	}
+
+	if (!silent)
+	{
+		timestamp ts;
+		udf_time_to_stamp(&ts, UDF_SB_RECORDTIME(sb), 0);
+		udf_info("UDF %s-%s (%s) Mounting volume '%s', timestamp %04u/%02u/%02u %02u:%02u (%x)\n",
+			UDFFS_VERSION, UDFFS_RW ? "rw" : "ro", UDFFS_DATE,
+			UDF_SB_VOLIDENT(sb), ts.year, ts.month, ts.day, ts.hour, ts.minute,
+			ts.typeAndTimezone);
+	}
+	if (!(sb->s_flags & MS_RDONLY))
+		udf_open_lvid(sb);
+
+	/* Assign the root inode */
+	/* assign inodes by physical block number */
+	/* perhaps it's not extensible enough, but for now ... */
+	inode = udf_iget(sb, rootdir); 
+	if (!inode)
+	{
+		printk("UDF-fs: Error in udf_iget, block=%d, partition=%d\n",
+			rootdir.logicalBlockNum, rootdir.partitionReferenceNum);
+		goto error_out;
+	}
+
+	/* Allocate a dentry for the root inode */
+	sb->s_root = d_alloc_root(inode);
+	if (!sb->s_root)
+	{
+		printk("UDF-fs: Couldn't allocate root dentry\n");
+		iput(inode);
+		goto error_out;
+	}
+	sb->s_maxbytes = MAX_LFS_FILESIZE;
+	return sb;
+
+error_out:
+	if (UDF_SB_VAT(sb))
+		iput(UDF_SB_VAT(sb));
+	if (UDF_SB_NUMPARTS(sb))
+	{
+		if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_UNALLOC_TABLE)
+			iput(UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_uspace.s_table);
+		if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_FREED_TABLE)
+			iput(UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_fspace.s_table);
+		if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_UNALLOC_BITMAP)
+		{
+			for (i=0; i<UDF_SB_BITMAP_NR_GROUPS(sb,UDF_SB_PARTITION(sb),s_uspace); i++)
+			{
+				if (UDF_SB_BITMAP(sb,UDF_SB_PARTITION(sb),s_uspace,i))
+					udf_release_data(UDF_SB_BITMAP(sb,UDF_SB_PARTITION(sb),s_uspace,i));
+			}
+			kfree(UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_uspace.s_bitmap);
+		}
+		if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_FREED_BITMAP)
+		{
+			for (i=0; i<UDF_SB_BITMAP_NR_GROUPS(sb,UDF_SB_PARTITION(sb),s_fspace); i++)
+			{
+				if (UDF_SB_BITMAP(sb,UDF_SB_PARTITION(sb),s_fspace,i))
+					udf_release_data(UDF_SB_BITMAP(sb,UDF_SB_PARTITION(sb),s_fspace,i));
+			}
+			kfree(UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_fspace.s_bitmap);
+		}
+		if (UDF_SB_PARTTYPE(sb, UDF_SB_PARTITION(sb)) == UDF_SPARABLE_MAP15)
+		{
+			for (i=0; i<4; i++)
+				udf_release_data(UDF_SB_TYPESPAR(sb, UDF_SB_PARTITION(sb)).s_spar_map[i]);
+		}
+	}
+#ifdef CONFIG_NLS
+	if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP))
+		unload_nls(UDF_SB(sb)->s_nls_map);
+#endif
+	if (!(sb->s_flags & MS_RDONLY))
+		udf_close_lvid(sb);
+	udf_release_data(UDF_SB_LVIDBH(sb));
+	UDF_SB_FREE(sb);
+	return NULL;
+}
+
+void udf_error(struct super_block *sb, const char *function,
+	const char *fmt, ...)
+{
+	va_list args;
+
+	if (!(sb->s_flags & MS_RDONLY))
+	{
+		/* mark sb error */
+		sb->s_dirt = 1;
+	}
+	va_start(args, fmt);
+	vsprintf(error_buf, fmt, args);
+	va_end(args);
+	printk (KERN_CRIT "UDF-fs error (device %s): %s: %s\n",
+		bdevname(sb->s_dev), function, error_buf);
+}
+
+void udf_warning(struct super_block *sb, const char *function,
+	const char *fmt, ...)
+{
+	va_list args;
+
+	va_start (args, fmt);
+	vsprintf(error_buf, fmt, args);
+	va_end(args);
+	printk(KERN_WARNING "UDF-fs warning (device %s): %s: %s\n",
+		bdevname(sb->s_dev), function, error_buf);
+}
+
+/*
+ * udf_put_super
+ *
+ * PURPOSE
+ *	Prepare for destruction of the superblock.
+ *
+ * DESCRIPTION
+ *	Called before the filesystem is unmounted.
+ *
+ * HISTORY
+ *	July 1, 1997 - Andrew E. Mileski
+ *	Written, tested, and released.
+ */
+static void
+udf_put_super(struct super_block *sb)
+{
+	int i;
+
+	if (UDF_SB_VAT(sb))
+		iput(UDF_SB_VAT(sb));
+	if (UDF_SB_NUMPARTS(sb))
+	{
+		if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_UNALLOC_TABLE)
+			iput(UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_uspace.s_table);
+		if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_FREED_TABLE)
+			iput(UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_fspace.s_table);
+		if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_UNALLOC_BITMAP)
+		{
+			for (i=0; i<UDF_SB_BITMAP_NR_GROUPS(sb,UDF_SB_PARTITION(sb),s_uspace); i++)
+			{
+				if (UDF_SB_BITMAP(sb,UDF_SB_PARTITION(sb),s_uspace,i))
+					udf_release_data(UDF_SB_BITMAP(sb,UDF_SB_PARTITION(sb),s_uspace,i));
+			}
+			kfree(UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_uspace.s_bitmap);
+		}
+		if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_FREED_BITMAP)
+		{
+			for (i=0; i<UDF_SB_BITMAP_NR_GROUPS(sb,UDF_SB_PARTITION(sb),s_fspace); i++)
+			{
+				if (UDF_SB_BITMAP(sb,UDF_SB_PARTITION(sb),s_fspace,i))
+					udf_release_data(UDF_SB_BITMAP(sb,UDF_SB_PARTITION(sb),s_fspace,i));
+			}
+			kfree(UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_fspace.s_bitmap);
+		}
+		if (UDF_SB_PARTTYPE(sb, UDF_SB_PARTITION(sb)) == UDF_SPARABLE_MAP15)
+		{
+			for (i=0; i<4; i++)
+				udf_release_data(UDF_SB_TYPESPAR(sb, UDF_SB_PARTITION(sb)).s_spar_map[i]);
+		}
+	}
+#ifdef CONFIG_NLS
+	if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP))
+		unload_nls(UDF_SB(sb)->s_nls_map);
+#endif
+	if (!(sb->s_flags & MS_RDONLY))
+		udf_close_lvid(sb);
+	udf_release_data(UDF_SB_LVIDBH(sb));
+	UDF_SB_FREE(sb);
+}
+
+/*
+ * udf_stat_fs
+ *
+ * PURPOSE
+ *	Return info about the filesystem.
+ *
+ * DESCRIPTION
+ *	Called by sys_statfs()
+ *
+ * HISTORY
+ *	July 1, 1997 - Andrew E. Mileski
+ *	Written, tested, and released.
+ */
+static int
+udf_statfs(struct super_block *sb, struct statfs *buf)
+{
+	buf->f_type = UDF_SUPER_MAGIC;
+	buf->f_bsize = sb->s_blocksize;
+	buf->f_blocks = UDF_SB_PARTLEN(sb, UDF_SB_PARTITION(sb));
+	buf->f_bfree = udf_count_free(sb);
+	buf->f_bavail = buf->f_bfree;
+	buf->f_files = (UDF_SB_LVIDBH(sb) ?
+		(le32_to_cpu(UDF_SB_LVIDIU(sb)->numFiles) +
+		le32_to_cpu(UDF_SB_LVIDIU(sb)->numDirs)) : 0) + buf->f_bfree;
+	buf->f_ffree = buf->f_bfree;
+	/* __kernel_fsid_t f_fsid */
+	buf->f_namelen = UDF_NAME_LEN;
+
+	return 0;
+}
+
+static unsigned char udf_bitmap_lookup[16] = {
+	0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4
+};
+
+static unsigned int
+udf_count_free_bitmap(struct super_block *sb, struct udf_bitmap *bitmap)
+{
+	struct buffer_head *bh = NULL;
+	unsigned int accum = 0;
+	int index;
+	int block = 0, newblock;
+	lb_addr loc;
+	uint32_t bytes;
+	uint8_t value;
+	uint8_t *ptr;
+	uint16_t ident;
+	struct spaceBitmapDesc *bm;
+
+	loc.logicalBlockNum = bitmap->s_extPosition;
+	loc.partitionReferenceNum = UDF_SB_PARTITION(sb);
+	bh = udf_read_ptagged(sb, loc, 0, &ident);
+
+	if (!bh)
+	{
+		printk(KERN_ERR "udf: udf_count_free failed\n");
+		return 0;
+	}
+	else if (ident != TAG_IDENT_SBD)
+	{
+		udf_release_data(bh);
+		printk(KERN_ERR "udf: udf_count_free failed\n");
+		return 0;
+	}
+
+	bm = (struct spaceBitmapDesc *)bh->b_data;
+	bytes = bm->numOfBytes;
+	index = sizeof(struct spaceBitmapDesc); /* offset in first block only */
+	ptr = (uint8_t *)bh->b_data;
+
+	while ( bytes > 0 )
+	{
+		while ((bytes > 0) && (index < sb->s_blocksize))
+		{
+			value = ptr[index];
+			accum += udf_bitmap_lookup[ value & 0x0f ];
+			accum += udf_bitmap_lookup[ value >> 4 ];
+			index++;
+			bytes--;
+		}
+		if ( bytes )
+		{
+			udf_release_data(bh);
+			newblock = udf_get_lb_pblock(sb, loc, ++block);
+			bh = udf_tread(sb, newblock);
+			if (!bh)
+			{
+				udf_debug("read failed\n");
+				return accum;
+			}
+			index = 0;
+			ptr = (uint8_t *)bh->b_data;
+		}
+	}
+	udf_release_data(bh);
+	return accum;
+}
+
+static unsigned int
+udf_count_free_table(struct super_block *sb, struct inode * table)
+{
+	unsigned int accum = 0;
+	uint32_t extoffset, elen;
+	lb_addr bloc, eloc;
+	int8_t etype;
+	struct buffer_head *bh = NULL;
+
+	bloc = UDF_I_LOCATION(table);
+	extoffset = sizeof(struct unallocSpaceEntry);
+
+	while ((etype = udf_next_aext(table, &bloc, &extoffset, &eloc, &elen, &bh, 1)) != -1)
+	{
+		accum += (elen >> table->i_sb->s_blocksize_bits);
+	}
+	udf_release_data(bh);
+	return accum;
+}
+	
+static unsigned int
+udf_count_free(struct super_block *sb)
+{
+	unsigned int accum = 0;
+
+	if (UDF_SB_LVIDBH(sb))
+	{
+		if (le32_to_cpu(UDF_SB_LVID(sb)->numOfPartitions) > UDF_SB_PARTITION(sb))
+		{
+			accum = le32_to_cpu(UDF_SB_LVID(sb)->freeSpaceTable[UDF_SB_PARTITION(sb)]);
+
+			if (accum == 0xFFFFFFFF)
+				accum = 0;
+		}
+	}
+
+	if (accum)
+		return accum;
+
+	if (UDF_SB_PARTFLAGS(sb,UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_UNALLOC_BITMAP)
+	{
+		accum += udf_count_free_bitmap(sb,
+			UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_uspace.s_bitmap);
+	}
+	if (UDF_SB_PARTFLAGS(sb,UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_FREED_BITMAP)
+	{
+		accum += udf_count_free_bitmap(sb,
+			UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_fspace.s_bitmap);
+	}
+	if (accum)
+		return accum;
+
+	if (UDF_SB_PARTFLAGS(sb,UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_UNALLOC_TABLE)
+	{
+		accum += udf_count_free_table(sb,
+			UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_uspace.s_table);
+	}
+	if (UDF_SB_PARTFLAGS(sb,UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_FREED_TABLE)
+	{
+		accum += udf_count_free_table(sb,
+			UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_fspace.s_table);
+	}
+
+	return accum;
+}
diff --git a/fs/udf/symlink.c b/fs/udf/symlink.c
new file mode 100644
index 00000000000000..4c72e690c94796
--- /dev/null
+++ b/fs/udf/symlink.c
@@ -0,0 +1,129 @@
+/*
+ * symlink.c
+ *
+ * PURPOSE
+ *	Symlink handling routines for the OSTA-UDF(tm) filesystem.
+ *
+ * CONTACTS
+ *	E-mail regarding any portion of the Linux UDF file system should be
+ *	directed to the development team mailing list (run by majordomo):
+ *		linux_udf@hpesjro.fc.hp.com
+ *
+ * COPYRIGHT
+ *	This file is distributed under the terms of the GNU General Public
+ *	License (GPL). Copies of the GPL can be obtained from:
+ *		ftp://prep.ai.mit.edu/pub/gnu/GPL
+ *	Each contributing author retains all rights to their own work.
+ *
+ *  (C) 1998-2001 Ben Fennema
+ *  (C) 1999 Stelias Computing Inc 
+ *
+ * HISTORY
+ *
+ *  04/16/99 blf  Created.
+ *
+ */
+
+#include "udfdecl.h"
+#include <asm/uaccess.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/udf_fs.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/stat.h>
+#include <linux/slab.h>
+#include <linux/pagemap.h>
+#include <linux/smp_lock.h>
+#include "udf_i.h"
+
+static void udf_pc_to_char(char *from, int fromlen, char *to)
+{
+	struct pathComponent *pc;
+	int elen = 0;
+	char *p = to;
+
+	while (elen < fromlen)
+	{
+		pc = (struct pathComponent *)(from + elen);
+		switch (pc->componentType)
+		{
+			case 1:
+				if (pc->lengthComponentIdent == 0)
+				{
+					p = to;
+					*p++ = '/';
+				}
+				break;
+			case 3:
+				memcpy(p, "../", 3);
+				p += 3;
+				break;
+			case 4:
+				memcpy(p, "./", 2);
+				p += 2;
+				/* that would be . - just ignore */
+				break;
+			case 5:
+				memcpy(p, pc->componentIdent, pc->lengthComponentIdent);
+				p += pc->lengthComponentIdent;
+				*p++ = '/';
+		}
+		elen += sizeof(struct pathComponent) + pc->lengthComponentIdent;
+	}
+	if (p > to+1)
+		p[-1] = '\0';
+	else
+		p[0] = '\0';
+}
+
+static int udf_symlink_filler(struct file *file, struct page *page)
+{
+	struct inode *inode = page->mapping->host;
+	struct buffer_head *bh = NULL;
+	char *symlink;
+	int err = -EIO;
+	char *p = kmap(page);
+	
+	lock_kernel();
+	if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB)
+	{
+		bh = udf_tread(inode->i_sb, inode->i_ino);
+
+		if (!bh)
+			goto out;
+
+		symlink = bh->b_data + udf_file_entry_alloc_offset(inode);
+	}
+	else
+	{
+		bh = sb_bread(inode->i_sb, udf_block_map(inode, 0));
+
+		if (!bh)
+			goto out;
+
+		symlink = bh->b_data;
+	}
+
+	udf_pc_to_char(symlink, inode->i_size, p);
+	udf_release_data(bh);
+
+	unlock_kernel();
+	SetPageUptodate(page);
+	kunmap(page);
+	UnlockPage(page);
+	return 0;
+out:
+	unlock_kernel();
+	SetPageError(page);
+	kunmap(page);
+	UnlockPage(page);
+	return err;
+}
+
+/*
+ * symlinks can't do much...
+ */
+struct address_space_operations udf_symlink_aops = {
+	readpage:		udf_symlink_filler,
+};
diff --git a/fs/udf/truncate.c b/fs/udf/truncate.c
new file mode 100644
index 00000000000000..0ae7e965b1c997
--- /dev/null
+++ b/fs/udf/truncate.c
@@ -0,0 +1,222 @@
+/*
+ * truncate.c
+ *
+ * PURPOSE
+ *	Truncate handling routines for the OSTA-UDF(tm) filesystem.
+ *
+ * CONTACTS
+ *	E-mail regarding any portion of the Linux UDF file system should be
+ *	directed to the development team mailing list (run by majordomo):
+ *		linux_udf@hpesjro.fc.hp.com
+ *
+ * COPYRIGHT
+ *	This file is distributed under the terms of the GNU General Public
+ *	License (GPL). Copies of the GPL can be obtained from:
+ *		ftp://prep.ai.mit.edu/pub/gnu/GPL
+ *	Each contributing author retains all rights to their own work.
+ *
+ *  (C) 1999-2001 Ben Fennema
+ *  (C) 1999 Stelias Computing Inc
+ *
+ * HISTORY
+ *
+ *  02/24/99 blf  Created.
+ *
+ */
+
+#include "udfdecl.h"
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/udf_fs.h>
+
+#include "udf_i.h"
+#include "udf_sb.h"
+
+static void extent_trunc(struct inode * inode, lb_addr bloc, int extoffset,
+	lb_addr eloc, int8_t etype, uint32_t elen, struct buffer_head *bh, uint32_t nelen)
+{
+	lb_addr neloc = { 0, 0 };
+	int last_block = (elen + inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits;
+	int first_block = (nelen + inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits;
+
+	if (nelen)
+	{
+		if (etype == (EXT_NOT_RECORDED_ALLOCATED >> 30))
+		{
+			udf_free_blocks(inode->i_sb, inode, eloc, 0, last_block);
+			etype = (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30);
+		}
+		else
+			neloc = eloc;
+		nelen = (etype << 30) | nelen;
+	}
+
+	if (elen != nelen)
+	{
+		udf_write_aext(inode, bloc, &extoffset, neloc, nelen, bh, 0);
+		if (last_block - first_block > 0)
+		{
+			if (etype == (EXT_RECORDED_ALLOCATED >> 30))
+				mark_inode_dirty(inode);
+
+			if (etype != (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30))
+				udf_free_blocks(inode->i_sb, inode, eloc, first_block, last_block - first_block);
+		}
+	}
+}
+
+void udf_truncate_extents(struct inode * inode)
+{
+	lb_addr bloc, eloc, neloc = { 0, 0 };
+	uint32_t extoffset, elen, offset, nelen = 0, lelen = 0, lenalloc;
+	int8_t etype;
+	int first_block = inode->i_size >> inode->i_sb->s_blocksize_bits;
+	struct buffer_head *bh = NULL;
+	int adsize;
+
+	if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_SHORT)
+		adsize = sizeof(short_ad);
+	else if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_LONG)
+		adsize = sizeof(long_ad);
+	else
+		adsize = 0;
+
+	etype = inode_bmap(inode, first_block, &bloc, &extoffset, &eloc, &elen, &offset, &bh);
+	offset += (inode->i_size & (inode->i_sb->s_blocksize - 1));
+	if (etype != -1)
+	{
+		extoffset -= adsize;
+		extent_trunc(inode, bloc, extoffset, eloc, etype, elen, bh, offset);
+		extoffset += adsize;
+
+		if (offset)
+			lenalloc = extoffset;
+		else
+			lenalloc = extoffset - adsize;
+
+		if (!memcmp(&UDF_I_LOCATION(inode), &bloc, sizeof(lb_addr)))
+			lenalloc -= udf_file_entry_alloc_offset(inode);
+		else
+			lenalloc -= sizeof(struct allocExtDesc);
+
+		while ((etype = udf_current_aext(inode, &bloc, &extoffset, &eloc, &elen, &bh, 0)) != -1)
+		{
+			if (etype == (EXT_NEXT_EXTENT_ALLOCDECS >> 30))
+			{
+				udf_write_aext(inode, bloc, &extoffset, neloc, nelen, bh, 0);
+				extoffset = 0;
+				if (lelen)
+				{
+					if (!memcmp(&UDF_I_LOCATION(inode), &bloc, sizeof(lb_addr)))
+						memset(bh->b_data, 0x00, udf_file_entry_alloc_offset(inode));
+					else
+						memset(bh->b_data, 0x00, sizeof(struct allocExtDesc));
+					udf_free_blocks(inode->i_sb, inode, bloc, 0, lelen);
+				}
+				else
+				{
+					if (!memcmp(&UDF_I_LOCATION(inode), &bloc, sizeof(lb_addr)))
+					{
+						UDF_I_LENALLOC(inode) = lenalloc;
+						mark_inode_dirty(inode);
+					}
+					else
+					{
+						struct allocExtDesc *aed = (struct allocExtDesc *)(bh->b_data);
+						aed->lengthAllocDescs = cpu_to_le32(lenalloc);
+						if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) || UDF_SB_UDFREV(inode->i_sb) >= 0x0201)
+							udf_update_tag(bh->b_data, lenalloc +
+								sizeof(struct allocExtDesc));
+						else
+							udf_update_tag(bh->b_data, sizeof(struct allocExtDesc));
+						mark_buffer_dirty_inode(bh, inode);
+					}
+				}
+
+				udf_release_data(bh);
+				bh = NULL;
+
+				bloc = eloc;
+				if (elen)
+					lelen = (elen + inode->i_sb->s_blocksize - 1) >>
+						inode->i_sb->s_blocksize_bits;
+				else
+					lelen = 1;
+			}
+			else
+			{
+				extent_trunc(inode, bloc, extoffset, eloc, etype, elen, bh, 0);
+				extoffset += adsize;
+			}
+		}
+
+		if (lelen)
+		{
+			if (!memcmp(&UDF_I_LOCATION(inode), &bloc, sizeof(lb_addr)))
+				memset(bh->b_data, 0x00, udf_file_entry_alloc_offset(inode));
+			else
+				memset(bh->b_data, 0x00, sizeof(struct allocExtDesc));
+			udf_free_blocks(inode->i_sb, inode, bloc, 0, lelen);
+		}
+		else
+		{
+			if (!memcmp(&UDF_I_LOCATION(inode), &bloc, sizeof(lb_addr)))
+			{
+				UDF_I_LENALLOC(inode) = lenalloc;
+				mark_inode_dirty(inode);
+			}
+			else
+			{
+				struct allocExtDesc *aed = (struct allocExtDesc *)(bh->b_data);
+				aed->lengthAllocDescs = cpu_to_le32(lenalloc);
+				if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) || UDF_SB_UDFREV(inode->i_sb) >= 0x0201)
+					udf_update_tag(bh->b_data, lenalloc +
+						sizeof(struct allocExtDesc));
+				else
+					udf_update_tag(bh->b_data, sizeof(struct allocExtDesc));
+				mark_buffer_dirty_inode(bh, inode);
+			}
+		}
+	}
+	else if (inode->i_size)
+	{
+		if (offset)
+		{
+			extoffset -= adsize;
+			etype = udf_next_aext(inode, &bloc, &extoffset, &eloc, &elen, &bh, 1);
+			if (etype == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30))
+			{
+				extoffset -= adsize;
+				elen = EXT_NOT_RECORDED_NOT_ALLOCATED | (elen + offset);
+				udf_write_aext(inode, bloc, &extoffset, eloc, elen, bh, 0);
+			}
+			else if (etype == (EXT_NOT_RECORDED_ALLOCATED >> 30))
+			{
+				lb_addr neloc = { 0, 0 };
+				extoffset -= adsize;
+				nelen = EXT_NOT_RECORDED_NOT_ALLOCATED |
+					((elen + offset + inode->i_sb->s_blocksize - 1) &
+					~(inode->i_sb->s_blocksize - 1));
+				udf_write_aext(inode, bloc, &extoffset, neloc, nelen, bh, 1);
+				udf_add_aext(inode, &bloc, &extoffset, eloc, (etype << 30) | elen, &bh, 1);
+			}
+			else
+			{
+				if (elen & (inode->i_sb->s_blocksize - 1))
+				{
+					extoffset -= adsize;
+					elen = EXT_RECORDED_ALLOCATED |
+						((elen + inode->i_sb->s_blocksize - 1) &
+						~(inode->i_sb->s_blocksize - 1));
+					udf_write_aext(inode, bloc, &extoffset, eloc, elen, bh, 1);
+				}
+				memset(&eloc, 0x00, sizeof(lb_addr));
+				elen = EXT_NOT_RECORDED_NOT_ALLOCATED | offset;
+				udf_add_aext(inode, &bloc, &extoffset, eloc, elen, &bh, 1);
+			}
+		}
+	}
+	UDF_I_LENEXTENTS(inode) = inode->i_size;
+
+	udf_release_data(bh);
+}
diff --git a/fs/udf/udf_i.h b/fs/udf/udf_i.h
new file mode 100644
index 00000000000000..dd5b9719a050c2
--- /dev/null
+++ b/fs/udf/udf_i.h
@@ -0,0 +1,22 @@
+#ifndef __LINUX_UDF_I_H
+#define __LINUX_UDF_I_H
+
+#define UDF_I(X)			(&((X)->u.udf_i))
+
+#define UDF_I_LOCATION(X)	( UDF_I(X)->i_location )
+#define UDF_I_LENEATTR(X)	( UDF_I(X)->i_lenEAttr )
+#define UDF_I_LENALLOC(X)	( UDF_I(X)->i_lenAlloc )
+#define UDF_I_LENEXTENTS(X)	( UDF_I(X)->i_lenExtents )
+#define UDF_I_UNIQUE(X)		( UDF_I(X)->i_unique )
+#define UDF_I_ALLOCTYPE(X)	( UDF_I(X)->i_alloc_type )
+#define UDF_I_EXTENDED_FE(X)	( UDF_I(X)->i_extended_fe )
+#define UDF_I_STRAT4096(X)	( UDF_I(X)->i_strat_4096 )
+#define UDF_I_NEW_INODE(X)	( UDF_I(X)->i_new_inode )
+#define UDF_I_NEXT_ALLOC_BLOCK(X)	( UDF_I(X)->i_next_alloc_block )
+#define UDF_I_NEXT_ALLOC_GOAL(X)	( UDF_I(X)->i_next_alloc_goal )
+#define UDF_I_UMTIME(X)		( UDF_I(X)->i_umtime )
+#define UDF_I_UCTIME(X)		( UDF_I(X)->i_uctime )
+#define UDF_I_CRTIME(X)		( UDF_I(X)->i_crtime )
+#define UDF_I_UCRTIME(X)	( UDF_I(X)->i_ucrtime )
+
+#endif /* !defined(_LINUX_UDF_I_H) */
diff --git a/fs/udf/udf_sb.h b/fs/udf/udf_sb.h
new file mode 100644
index 00000000000000..0dde99415c976c
--- /dev/null
+++ b/fs/udf/udf_sb.h
@@ -0,0 +1,119 @@
+#ifndef __LINUX_UDF_SB_H
+#define __LINUX_UDF_SB_H
+
+/* Since UDF 2.01 is ISO 13346 based... */
+#define UDF_SUPER_MAGIC			0x15013346
+
+#define UDF_MAX_READ_VERSION		0x0201
+#define UDF_MAX_WRITE_VERSION		0x0201
+
+#define UDF_FLAG_USE_EXTENDED_FE	0
+#define UDF_VERS_USE_EXTENDED_FE	0x0200
+#define UDF_FLAG_USE_STREAMS		1
+#define UDF_VERS_USE_STREAMS		0x0200
+#define UDF_FLAG_USE_SHORT_AD		2
+#define UDF_FLAG_USE_AD_IN_ICB		3
+#define UDF_FLAG_USE_FILE_CTIME_EA	4
+#define UDF_FLAG_STRICT			5
+#define UDF_FLAG_UNDELETE		6
+#define UDF_FLAG_UNHIDE			7
+#define UDF_FLAG_VARCONV		8
+#define UDF_FLAG_NLS_MAP		9
+#define UDF_FLAG_UTF8			10
+
+#define UDF_PART_FLAG_UNALLOC_BITMAP	0x0001
+#define UDF_PART_FLAG_UNALLOC_TABLE	0x0002
+#define UDF_PART_FLAG_FREED_BITMAP	0x0004
+#define UDF_PART_FLAG_FREED_TABLE	0x0008
+#define UDF_PART_FLAG_READ_ONLY		0x0010
+#define UDF_PART_FLAG_WRITE_ONCE	0x0020
+#define UDF_PART_FLAG_REWRITABLE	0x0040
+#define UDF_PART_FLAG_OVERWRITABLE	0x0080
+
+#define UDF_SB_FREE(X)\
+{\
+	if (UDF_SB(X))\
+	{\
+		if (UDF_SB_PARTMAPS(X))\
+			kfree(UDF_SB_PARTMAPS(X));\
+		UDF_SB_PARTMAPS(X) = NULL;\
+	}\
+}
+#define UDF_SB(X)	(&((X)->u.udf_sb))
+
+#define UDF_SB_ALLOC_PARTMAPS(X,Y)\
+{\
+	UDF_SB_PARTMAPS(X) = kmalloc(sizeof(struct udf_part_map) * Y, GFP_KERNEL);\
+	if (UDF_SB_PARTMAPS(X) != NULL)\
+	{\
+		UDF_SB_NUMPARTS(X) = Y;\
+		memset(UDF_SB_PARTMAPS(X), 0x00, sizeof(struct udf_part_map) * Y);\
+	}\
+	else\
+	{\
+		UDF_SB_NUMPARTS(X) = 0;\
+		udf_error(X, __FUNCTION__, "Unable to allocate space for %d partition maps", Y);\
+	}\
+}
+
+#define UDF_SB_ALLOC_BITMAP(X,Y,Z)\
+{\
+	int nr_groups = ((UDF_SB_PARTLEN((X),(Y)) + (sizeof(struct spaceBitmapDesc) << 3) +\
+		((X)->s_blocksize * 8) - 1) / ((X)->s_blocksize * 8));\
+	UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap = kmalloc(sizeof(struct udf_bitmap) +\
+		sizeof(struct buffer_head *) * nr_groups,\
+		GFP_KERNEL);\
+	if (UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap != NULL)\
+	{\
+		memset(UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap, 0x00,\
+			sizeof(struct udf_bitmap) + sizeof(struct buffer_head *) * nr_groups);\
+		UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_block_bitmap =\
+			(struct buffer_head **)(UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap + 1);\
+		UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_nr_groups = nr_groups;\
+	}\
+	else\
+	{\
+		udf_error(X, __FUNCTION__, "Unable to allocate space for bitmap and %d buffer_head pointers", nr_groups);\
+	}\
+}
+
+
+#define UDF_QUERY_FLAG(X,Y)			( UDF_SB(X)->s_flags & ( 1 << (Y) ) )
+#define UDF_SET_FLAG(X,Y)			( UDF_SB(X)->s_flags |= ( 1 << (Y) ) )
+#define UDF_CLEAR_FLAG(X,Y)			( UDF_SB(X)->s_flags &= ~( 1 << (Y) ) )
+
+#define UDF_UPDATE_UDFREV(X,Y)			( ((Y) > UDF_SB_UDFREV(X)) ? UDF_SB_UDFREV(X) = (Y) : UDF_SB_UDFREV(X) )
+
+#define UDF_SB_PARTMAPS(X)			( UDF_SB(X)->s_partmaps )
+#define UDF_SB_PARTTYPE(X,Y)			( UDF_SB_PARTMAPS(X)[(Y)].s_partition_type )
+#define UDF_SB_PARTROOT(X,Y)			( UDF_SB_PARTMAPS(X)[(Y)].s_partition_root )
+#define UDF_SB_PARTLEN(X,Y)			( UDF_SB_PARTMAPS(X)[(Y)].s_partition_len )
+#define UDF_SB_PARTVSN(X,Y)			( UDF_SB_PARTMAPS(X)[(Y)].s_volumeseqnum )
+#define UDF_SB_PARTNUM(X,Y)			( UDF_SB_PARTMAPS(X)[(Y)].s_partition_num )
+#define UDF_SB_TYPESPAR(X,Y)			( UDF_SB_PARTMAPS(X)[(Y)].s_type_specific.s_sparing )
+#define UDF_SB_TYPEVIRT(X,Y)			( UDF_SB_PARTMAPS(X)[(Y)].s_type_specific.s_virtual )
+#define UDF_SB_PARTFUNC(X,Y)			( UDF_SB_PARTMAPS(X)[(Y)].s_partition_func )
+#define UDF_SB_PARTFLAGS(X,Y)			( UDF_SB_PARTMAPS(X)[(Y)].s_partition_flags )
+#define UDF_SB_BITMAP(X,Y,Z,I)			( UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_block_bitmap[I] )
+#define UDF_SB_BITMAP_NR_GROUPS(X,Y,Z)	( UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_nr_groups )
+
+#define UDF_SB_VOLIDENT(X)			( UDF_SB(X)->s_volident )
+#define UDF_SB_NUMPARTS(X)			( UDF_SB(X)->s_partitions )
+#define UDF_SB_PARTITION(X)			( UDF_SB(X)->s_partition )
+#define UDF_SB_SESSION(X)			( UDF_SB(X)->s_session )
+#define UDF_SB_ANCHOR(X)			( UDF_SB(X)->s_anchor )
+#define UDF_SB_LASTBLOCK(X)			( UDF_SB(X)->s_lastblock )
+#define UDF_SB_LVIDBH(X)			( UDF_SB(X)->s_lvidbh )
+#define UDF_SB_LVID(X)				( (struct logicalVolIntegrityDesc *)UDF_SB_LVIDBH(X)->b_data )
+#define UDF_SB_LVIDIU(X)			( (struct logicalVolIntegrityDescImpUse *)&(UDF_SB_LVID(X)->impUse[le32_to_cpu(UDF_SB_LVID(X)->numOfPartitions) * 2 * sizeof(uint32_t)/sizeof(uint8_t)]) )
+
+#define UDF_SB_UMASK(X)				( UDF_SB(X)->s_umask )
+#define UDF_SB_GID(X)				( UDF_SB(X)->s_gid )
+#define UDF_SB_UID(X)				( UDF_SB(X)->s_uid )
+#define UDF_SB_RECORDTIME(X)			( UDF_SB(X)->s_recordtime )
+#define UDF_SB_SERIALNUM(X)			( UDF_SB(X)->s_serialnum )
+#define UDF_SB_UDFREV(X)			( UDF_SB(X)->s_udfrev )
+#define UDF_SB_FLAGS(X)				( UDF_SB(X)->s_flags )
+#define UDF_SB_VAT(X)				( UDF_SB(X)->s_vat )
+
+#endif /* __LINUX_UDF_SB_H */
diff --git a/fs/udf/udfdecl.h b/fs/udf/udfdecl.h
new file mode 100644
index 00000000000000..836aef50cdeddf
--- /dev/null
+++ b/fs/udf/udfdecl.h
@@ -0,0 +1,206 @@
+#ifndef __UDF_DECL_H
+#define __UDF_DECL_H
+
+#include <linux/udf_fs.h>
+#include "ecma_167.h"
+#include "osta_udf.h"
+
+#include <linux/fs.h>
+#include <linux/config.h>
+#include <linux/types.h>
+
+#ifndef LINUX_VERSION_CODE
+#include <linux/version.h>
+#endif
+
+#if !defined(CONFIG_UDF_FS) && !defined(CONFIG_UDF_FS_MODULE)
+#define CONFIG_UDF_FS_MODULE
+#include <linux/udf_fs_i.h>
+#include <linux/udf_fs_sb.h>
+#endif
+
+#include "udfend.h"
+
+#define udf_fixed_to_variable(x) ( ( ( (x) >> 5 ) * 39 ) + ( (x) & 0x0000001F ) )
+#define udf_variable_to_fixed(x) ( ( ( (x) / 39 ) << 5 ) + ( (x) % 39 ) )
+
+#define UDF_EXTENT_LENGTH_MASK	0x3FFFFFFF
+#define UDF_EXTENT_FLAG_MASK	0xC0000000
+
+#define UDF_NAME_PAD		4
+#define UDF_NAME_LEN		255
+#define UDF_PATH_LEN		1023
+
+#define CURRENT_UTIME	(xtime.tv_usec)
+
+#define udf_file_entry_alloc_offset(inode)\
+	((UDF_I_EXTENDED_FE(inode) ?\
+		sizeof(struct extendedFileEntry) :\
+		sizeof(struct fileEntry)) + UDF_I_LENEATTR(inode))
+
+#define udf_ext0_offset(inode)\
+	(UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB ?\
+		udf_file_entry_alloc_offset(inode) : 0)
+
+#define udf_get_lb_pblock(sb,loc,offset) udf_get_pblock((sb), (loc).logicalBlockNum, (loc).partitionReferenceNum, (offset))
+
+struct dentry;
+struct inode;
+struct task_struct;
+struct buffer_head;
+struct super_block;
+
+extern struct inode_operations udf_dir_inode_operations;
+extern struct file_operations udf_dir_operations;
+extern struct inode_operations udf_file_inode_operations;
+extern struct file_operations udf_file_operations;
+extern struct address_space_operations udf_aops;
+extern struct address_space_operations udf_adinicb_aops;
+extern struct address_space_operations udf_symlink_aops;
+
+struct udf_fileident_bh
+{
+	struct buffer_head *sbh;
+	struct buffer_head *ebh;
+	int soffset;
+	int eoffset;
+};
+
+struct udf_directory_record
+{
+	uint32_t	d_parent;
+	uint32_t	d_inode;
+	uint32_t	d_name[255];
+};
+
+struct udf_vds_record
+{
+	uint32_t block;
+	uint32_t volDescSeqNum;
+};
+
+struct generic_desc
+{
+	tag		descTag;
+	uint32_t	volDescSeqNum;
+};
+
+struct ustr
+{
+	uint8_t u_cmpID;
+	uint8_t u_name[UDF_NAME_LEN];
+	uint8_t u_len;
+};
+
+/* super.c */
+extern void udf_error(struct super_block *, const char *, const char *, ...);
+extern void udf_warning(struct super_block *, const char *, const char *, ...);
+
+/* namei.c */
+extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *, struct fileIdentDesc *, struct udf_fileident_bh *, uint8_t *, uint8_t *);
+
+/* file.c */
+extern int udf_ioctl(struct inode *, struct file *, unsigned int, unsigned long);
+
+/* inode.c */
+extern struct inode *udf_iget(struct super_block *, lb_addr);
+extern int udf_sync_inode(struct inode *);
+extern void udf_expand_file_adinicb(struct inode *, int, int *);
+extern struct buffer_head * udf_expand_dir_adinicb(struct inode *, int *, int *);
+extern struct buffer_head * udf_getblk(struct inode *, long, int, int *);
+extern struct buffer_head * udf_bread(struct inode *, int, int, int *);
+extern void udf_truncate(struct inode *);
+extern void udf_read_inode(struct inode *);
+extern void udf_put_inode(struct inode *);
+extern void udf_delete_inode(struct inode *);
+extern void udf_write_inode(struct inode *, int);
+extern long udf_block_map(struct inode *, long);
+extern int8_t inode_bmap(struct inode *, int, lb_addr *, uint32_t *, lb_addr *, uint32_t *, uint32_t *, struct buffer_head **);
+extern int8_t udf_add_aext(struct inode *, lb_addr *, int *, lb_addr, uint32_t, struct buffer_head **, int);
+extern int8_t udf_write_aext(struct inode *, lb_addr, int *, lb_addr, uint32_t, struct buffer_head *, int);
+extern int8_t udf_insert_aext(struct inode *, lb_addr, int, lb_addr, uint32_t, struct buffer_head *);
+extern int8_t udf_delete_aext(struct inode *, lb_addr, int, lb_addr, uint32_t, struct buffer_head *);
+extern int8_t udf_next_aext(struct inode *, lb_addr *, int *, lb_addr *, uint32_t *, struct buffer_head **, int);
+extern int8_t udf_current_aext(struct inode *, lb_addr *, int *, lb_addr *, uint32_t *, struct buffer_head **, int);
+extern void udf_discard_prealloc(struct inode *);
+
+/* misc.c */
+extern int udf_read_tagged_data(char *, int size, int fd, int block, int partref);
+extern struct buffer_head *udf_tgetblk(struct super_block *, int);
+extern struct buffer_head *udf_tread(struct super_block *, int);
+extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t, uint32_t, uint8_t, struct buffer_head **);
+extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t, uint8_t, struct buffer_head **);
+extern struct buffer_head *udf_read_tagged(struct super_block *, uint32_t, uint32_t, uint16_t *);
+extern struct buffer_head *udf_read_ptagged(struct super_block *, lb_addr, uint32_t, uint16_t *);
+extern void udf_release_data(struct buffer_head *);
+
+/* lowlevel.c */
+extern unsigned int udf_get_last_session(struct super_block *);
+extern unsigned long udf_get_last_block(struct super_block *);
+
+/* partition.c */
+extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t, uint32_t);
+extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t, uint32_t);
+extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t, uint32_t);
+extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t, uint32_t);
+extern int udf_relocate_blocks(struct super_block *, long, long *);
+
+/* unicode.c */
+extern int udf_get_filename(struct super_block *, uint8_t *, uint8_t *, int);
+
+/* ialloc.c */
+extern void udf_free_inode(struct inode *);
+extern struct inode * udf_new_inode (struct inode *, int, int *);
+
+/* truncate.c */
+extern void udf_truncate_extents(struct inode *);
+
+/* balloc.c */
+extern void udf_free_blocks(struct super_block *, struct inode *, lb_addr, uint32_t, uint32_t);
+extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t, uint32_t, uint32_t);
+extern int udf_new_block(struct super_block *, struct inode *, uint16_t, uint32_t, int *);
+
+/* fsync.c */
+extern int udf_fsync_file(struct file *, struct dentry *, int);
+extern int udf_fsync_inode(struct inode *, int);
+
+/* directory.c */
+extern uint8_t * udf_filead_read(struct inode *, uint8_t *, uint8_t, lb_addr, int *, int *, struct buffer_head **, int *);
+extern struct fileIdentDesc * udf_fileident_read(struct inode *, loff_t *, struct udf_fileident_bh *, struct fileIdentDesc *, lb_addr *, uint32_t *, lb_addr *, uint32_t *, uint32_t *, struct buffer_head **);
+
+/* unicode.c */
+extern int udf_ustr_to_dchars(uint8_t *, const struct ustr *, int);
+extern int udf_ustr_to_char(uint8_t *, const struct ustr *, int);
+extern int udf_ustr_to_dstring(dstring *, const struct ustr *, int);
+extern int udf_dchars_to_ustr(struct ustr *, const uint8_t *, int);
+extern int udf_char_to_ustr(struct ustr *, const uint8_t *, int);
+extern int udf_dstring_to_ustr(struct ustr *, const dstring *, int);
+extern int udf_translate_to_linux(uint8_t *, uint8_t *, int, uint8_t *, int);
+extern int udf_build_ustr(struct ustr *, dstring *, int);
+extern int udf_build_ustr_exact(struct ustr *, dstring *, int);
+extern int udf_CS0toUTF8(struct ustr *, struct ustr *);
+extern int udf_UTF8toCS0(dstring *, struct ustr *, int);
+extern int udf_CS0toNLS(struct nls_table *, struct ustr *, struct ustr *);
+extern int udf_NLStoCS0(struct nls_table *, dstring *, struct ustr *, int);
+
+/* crc.c */
+extern uint16_t udf_crc(uint8_t *, uint32_t, uint16_t);
+
+/* misc.c */
+extern uint32_t udf64_low32(uint64_t);
+extern uint32_t udf64_high32(uint64_t);
+extern void udf_update_tag(char *, int);
+extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int);
+
+/* udftime.c */
+extern time_t *udf_stamp_to_time(time_t *, long *, timestamp);
+extern timestamp *udf_time_to_stamp(timestamp *, time_t, long);
+
+/* directory.c */
+extern struct fileIdentDesc * udf_get_fileident(void * buffer, int bufsize, int * offset);
+extern extent_ad * udf_get_fileextent(void * buffer, int bufsize, int * offset);
+extern long_ad * udf_get_filelongad(void * buffer, int bufsize, int * offset, int);
+extern short_ad * udf_get_fileshortad(void * buffer, int bufsize, int * offset, int);
+extern uint8_t * udf_get_filead(struct fileEntry *, uint8_t *, int, int, int, int *);
+
+#endif /* __UDF_DECL_H */
diff --git a/fs/udf/udfend.h b/fs/udf/udfend.h
new file mode 100644
index 00000000000000..6313daab090e71
--- /dev/null
+++ b/fs/udf/udfend.h
@@ -0,0 +1,81 @@
+#ifndef __UDF_ENDIAN_H
+#define __UDF_ENDIAN_H
+
+#include <asm/byteorder.h>
+#include <linux/string.h>
+
+static inline lb_addr lelb_to_cpu(lb_addr in)
+{
+	lb_addr out;
+	out.logicalBlockNum = le32_to_cpu(in.logicalBlockNum);
+	out.partitionReferenceNum = le16_to_cpu(in.partitionReferenceNum);
+	return out;
+}
+
+static inline lb_addr cpu_to_lelb(lb_addr in)
+{
+	lb_addr out;
+	out.logicalBlockNum = cpu_to_le32(in.logicalBlockNum);
+	out.partitionReferenceNum = cpu_to_le16(in.partitionReferenceNum);
+	return out;
+}
+
+static inline timestamp lets_to_cpu(timestamp in)
+{
+	timestamp out;
+	memcpy(&out, &in, sizeof(timestamp));
+	out.typeAndTimezone = le16_to_cpu(in.typeAndTimezone);
+	out.year = le16_to_cpu(in.year);
+	return out;
+}
+
+static inline short_ad lesa_to_cpu(short_ad in)
+{
+	short_ad out;
+	out.extLength = le32_to_cpu(in.extLength);
+	out.extPosition = le32_to_cpu(in.extPosition);
+	return out;
+}
+
+static inline short_ad cpu_to_lesa(short_ad in)
+{
+	short_ad out;
+	out.extLength = cpu_to_le32(in.extLength);
+	out.extPosition = cpu_to_le32(in.extPosition);
+	return out;
+}
+
+static inline long_ad lela_to_cpu(long_ad in)
+{
+	long_ad out;
+	out.extLength = le32_to_cpu(in.extLength);
+	out.extLocation = lelb_to_cpu(in.extLocation);
+	return out;
+}
+
+static inline long_ad cpu_to_lela(long_ad in)
+{
+	long_ad out;
+	out.extLength = cpu_to_le32(in.extLength);
+	out.extLocation = cpu_to_lelb(in.extLocation);
+	return out;
+}
+
+static inline extent_ad leea_to_cpu(extent_ad in)
+{
+	extent_ad out;
+	out.extLength = le32_to_cpu(in.extLength);
+	out.extLocation = le32_to_cpu(in.extLocation);
+	return out;
+}
+
+static inline timestamp cpu_to_lets(timestamp in)
+{
+	timestamp out;
+	memcpy(&out, &in, sizeof(timestamp));
+	out.typeAndTimezone = cpu_to_le16(in.typeAndTimezone);
+	out.year = cpu_to_le16(in.year);
+	return out;
+}
+
+#endif /* __UDF_ENDIAN_H */
diff --git a/fs/udf/udftime.c b/fs/udf/udftime.c
new file mode 100644
index 00000000000000..decaede92657f6
--- /dev/null
+++ b/fs/udf/udftime.c
@@ -0,0 +1,174 @@
+/* Copyright (C) 1993, 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Paul Eggert (eggert@twinsun.com).
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/*
+ * dgb 10/02/98: ripped this from glibc source to help convert timestamps to unix time 
+ *     10/04/98: added new table-based lookup after seeing how ugly the gnu code is
+ * blf 09/27/99: ripped out all the old code and inserted new table from
+ *					John Brockmeyer (without leap second corrections)
+ *				 rewrote udf_stamp_to_time and fixed timezone accounting in
+					udf_time_to_stamp.
+ */
+
+/*
+ * We don't take into account leap seconds. This may be correct or incorrect.
+ * For more NIST information (especially dealing with leap seconds), see:
+ *  http://www.boulder.nist.gov/timefreq/pubs/bulletin/leapsecond.htm
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include "udfdecl.h"
+
+#define EPOCH_YEAR 1970
+
+#ifndef __isleap
+/* Nonzero if YEAR is a leap year (every 4 years,
+   except every 100th isn't, and every 400th is).  */
+#define	__isleap(year)	\
+  ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0))
+#endif
+
+/* How many days come before each month (0-12).  */
+const unsigned short int __mon_yday[2][13] =
+{
+	/* Normal years.  */
+	{ 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 },
+	/* Leap years.  */
+	{ 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 }
+};
+
+#define MAX_YEAR_SECONDS	69
+#define SPD 0x15180 /*3600*24*/
+#define SPY(y,l,s) (SPD * (365*y+l)+s)
+
+time_t year_seconds[MAX_YEAR_SECONDS]= {
+/*1970*/ SPY( 0, 0,0), SPY( 1, 0,0), SPY( 2, 0,0), SPY( 3, 1,0), 
+/*1974*/ SPY( 4, 1,0), SPY( 5, 1,0), SPY( 6, 1,0), SPY( 7, 2,0), 
+/*1978*/ SPY( 8, 2,0), SPY( 9, 2,0), SPY(10, 2,0), SPY(11, 3,0), 
+/*1982*/ SPY(12, 3,0), SPY(13, 3,0), SPY(14, 3,0), SPY(15, 4,0), 
+/*1986*/ SPY(16, 4,0), SPY(17, 4,0), SPY(18, 4,0), SPY(19, 5,0), 
+/*1990*/ SPY(20, 5,0), SPY(21, 5,0), SPY(22, 5,0), SPY(23, 6,0), 
+/*1994*/ SPY(24, 6,0), SPY(25, 6,0), SPY(26, 6,0), SPY(27, 7,0), 
+/*1998*/ SPY(28, 7,0), SPY(29, 7,0), SPY(30, 7,0), SPY(31, 8,0), 
+/*2002*/ SPY(32, 8,0), SPY(33, 8,0), SPY(34, 8,0), SPY(35, 9,0), 
+/*2006*/ SPY(36, 9,0), SPY(37, 9,0), SPY(38, 9,0), SPY(39,10,0), 
+/*2010*/ SPY(40,10,0), SPY(41,10,0), SPY(42,10,0), SPY(43,11,0), 
+/*2014*/ SPY(44,11,0), SPY(45,11,0), SPY(46,11,0), SPY(47,12,0), 
+/*2018*/ SPY(48,12,0), SPY(49,12,0), SPY(50,12,0), SPY(51,13,0), 
+/*2022*/ SPY(52,13,0), SPY(53,13,0), SPY(54,13,0), SPY(55,14,0), 
+/*2026*/ SPY(56,14,0), SPY(57,14,0), SPY(58,14,0), SPY(59,15,0), 
+/*2030*/ SPY(60,15,0), SPY(61,15,0), SPY(62,15,0), SPY(63,16,0), 
+/*2034*/ SPY(64,16,0), SPY(65,16,0), SPY(66,16,0), SPY(67,17,0), 
+/*2038*/ SPY(68,17,0)
+};
+
+extern struct timezone sys_tz;
+
+#define SECS_PER_HOUR	(60 * 60)
+#define SECS_PER_DAY	(SECS_PER_HOUR * 24)
+
+time_t *
+udf_stamp_to_time(time_t *dest, long *dest_usec, timestamp src)
+{
+	int yday;
+	uint8_t type = src.typeAndTimezone >> 12;
+	int16_t offset;
+
+	if (type == 1)
+	{
+		offset = src.typeAndTimezone << 4;
+		/* sign extent offset */
+		offset = (offset >> 4);
+		if (offset == -2047) /* unspecified offset */
+			offset = 0;
+	}
+	else
+		offset = 0;
+
+	if ((src.year < EPOCH_YEAR) ||
+		(src.year > EPOCH_YEAR+MAX_YEAR_SECONDS))
+	{
+		*dest = -1;
+		*dest_usec = -1;
+		return NULL;
+	}
+	*dest = year_seconds[src.year - EPOCH_YEAR];
+	*dest -= offset * 60;
+
+	yday = ((__mon_yday[__isleap (src.year)]
+		[src.month-1]) + (src.day-1));
+	*dest += ( ( (yday* 24) + src.hour ) * 60 + src.minute ) * 60 + src.second;
+	*dest_usec = src.centiseconds * 10000 + src.hundredsOfMicroseconds * 100 + src.microseconds;
+	return dest;
+}
+
+
+timestamp *
+udf_time_to_stamp(timestamp *dest, time_t tv_sec, long tv_usec)
+{
+	long int days, rem, y;
+	const unsigned short int *ip;
+	int16_t offset;
+
+	offset = -sys_tz.tz_minuteswest;
+
+	if (!dest)
+		return NULL;
+
+	dest->typeAndTimezone = 0x1000 | (offset & 0x0FFF);
+
+	tv_sec += offset * 60;
+	days = tv_sec / SECS_PER_DAY;
+	rem = tv_sec % SECS_PER_DAY;
+	dest->hour = rem / SECS_PER_HOUR;
+	rem %= SECS_PER_HOUR;
+	dest->minute = rem / 60;
+	dest->second = rem % 60;
+	y = 1970;
+
+#define DIV(a,b) ((a) / (b) - ((a) % (b) < 0))
+#define LEAPS_THRU_END_OF(y) (DIV (y, 4) - DIV (y, 100) + DIV (y, 400))
+
+	while (days < 0 || days >= (__isleap(y) ? 366 : 365))
+	{
+		long int yg = y + days / 365 - (days % 365 < 0);
+
+		/* Adjust DAYS and Y to match the guessed year.  */
+		days -= ((yg - y) * 365
+			+ LEAPS_THRU_END_OF (yg - 1)
+			- LEAPS_THRU_END_OF (y - 1));
+		y = yg;
+	}
+	dest->year = y;
+	ip = __mon_yday[__isleap(y)];
+	for (y = 11; days < (long int) ip[y]; --y)
+		continue;
+	days -= ip[y];
+	dest->month = y + 1;
+	dest->day = days + 1;
+
+	dest->centiseconds = tv_usec / 10000;
+	dest->hundredsOfMicroseconds = (tv_usec - dest->centiseconds * 10000) / 100;
+	dest->microseconds = (tv_usec - dest->centiseconds * 10000 -
+		dest->hundredsOfMicroseconds * 100);
+	return dest;
+}
+
+/* EOF */
diff --git a/fs/udf/unicode.c b/fs/udf/unicode.c
new file mode 100644
index 00000000000000..eb88a0173f1702
--- /dev/null
+++ b/fs/udf/unicode.c
@@ -0,0 +1,534 @@
+/*
+ * unicode.c
+ *
+ * PURPOSE
+ *	Routines for converting between UTF-8 and OSTA Compressed Unicode.
+ *      Also handles filename mangling
+ *
+ * DESCRIPTION
+ *	OSTA Compressed Unicode is explained in the OSTA UDF specification.
+ *		http://www.osta.org/
+ *	UTF-8 is explained in the IETF RFC XXXX.
+ *		ftp://ftp.internic.net/rfc/rfcxxxx.txt
+ *
+ * CONTACTS
+ *	E-mail regarding any portion of the Linux UDF file system should be
+ *	directed to the development team's mailing list (run by majordomo):
+ *		linux_udf@hpesjro.fc.hp.com
+ *
+ * COPYRIGHT
+ *	This file is distributed under the terms of the GNU General Public
+ *	License (GPL). Copies of the GPL can be obtained from:
+ *		ftp://prep.ai.mit.edu/pub/gnu/GPL
+ *	Each contributing author retains all rights to their own work.
+ */
+
+#include "udfdecl.h"
+
+#include <linux/kernel.h>
+#include <linux/string.h>	/* for memset */
+#include <linux/nls.h>
+#include <linux/udf_fs.h>
+
+#include "udf_sb.h"
+
+int udf_ustr_to_dchars(uint8_t *dest, const struct ustr *src, int strlen)
+{
+	if ( (!dest) || (!src) || (!strlen) || (src->u_len > strlen) )
+		return 0;
+	memcpy(dest+1, src->u_name, src->u_len);
+	dest[0] = src->u_cmpID;
+	return src->u_len + 1;
+}
+
+int udf_ustr_to_char(uint8_t *dest, const struct ustr *src, int strlen)
+{
+	if ( (!dest) || (!src) || (!strlen) || (src->u_len >= strlen) )
+		return 0;
+	memcpy(dest, src->u_name, src->u_len);
+	return src->u_len;
+}
+
+int udf_ustr_to_dstring(dstring *dest, const struct ustr *src, int dlength)
+{
+	if ( udf_ustr_to_dchars(dest, src, dlength-1) )
+	{
+		dest[dlength-1] = src->u_len + 1;
+		return dlength;
+	}
+	else
+		return 0;
+}
+
+int udf_dchars_to_ustr(struct ustr *dest, const uint8_t *src, int strlen)
+{
+	if ( (!dest) || (!src) || (!strlen) || (strlen > UDF_NAME_LEN) )
+		return 0;
+	memset(dest, 0, sizeof(struct ustr));
+	memcpy(dest->u_name, src+1, strlen-1);
+	dest->u_cmpID = src[0];
+	dest->u_len = strlen-1;
+	return strlen-1;
+}
+
+int udf_char_to_ustr(struct ustr *dest, const uint8_t *src, int strlen)
+{
+	if ( (!dest) || (!src) || (!strlen) || (strlen >= UDF_NAME_LEN) )
+		return 0;
+	memset(dest, 0, sizeof(struct ustr));
+	memcpy(dest->u_name, src, strlen);
+	dest->u_cmpID = 0x08;
+	dest->u_len = strlen;
+	return strlen;
+}
+
+
+int udf_dstring_to_ustr(struct ustr *dest, const dstring *src, int dlength)
+{
+	if ( dlength && udf_dchars_to_ustr(dest, src, src[dlength-1]) )
+		return dlength;
+	else
+		return 0;
+}
+
+/*
+ * udf_build_ustr
+ */
+int udf_build_ustr(struct ustr *dest, dstring *ptr, int size)
+{
+	int usesize;
+
+	if ( (!dest) || (!ptr) || (!size) )
+		return -1;
+
+	memset(dest, 0, sizeof(struct ustr));
+	usesize= (size > UDF_NAME_LEN) ? UDF_NAME_LEN : size;
+	dest->u_cmpID=ptr[0];
+	dest->u_len=ptr[size-1];
+	memcpy(dest->u_name, ptr+1, usesize-1);
+	return 0;
+}
+
+/*
+ * udf_build_ustr_exact
+ */
+int udf_build_ustr_exact(struct ustr *dest, dstring *ptr, int exactsize)
+{
+	if ( (!dest) || (!ptr) || (!exactsize) )
+		return -1;
+
+	memset(dest, 0, sizeof(struct ustr));
+	dest->u_cmpID=ptr[0];
+	dest->u_len=exactsize-1;
+	memcpy(dest->u_name, ptr+1, exactsize-1);
+	return 0;
+}
+
+/*
+ * udf_ocu_to_utf8
+ *
+ * PURPOSE
+ *	Convert OSTA Compressed Unicode to the UTF-8 equivalent.
+ *
+ * DESCRIPTION
+ *	This routine is only called by udf_filldir().
+ *
+ * PRE-CONDITIONS
+ *	utf			Pointer to UTF-8 output buffer.
+ *	ocu			Pointer to OSTA Compressed Unicode input buffer
+ *				of size UDF_NAME_LEN bytes.
+ * 				both of type "struct ustr *"
+ *
+ * POST-CONDITIONS
+ *	<return>		Zero on success.
+ *
+ * HISTORY
+ *	November 12, 1997 - Andrew E. Mileski
+ *	Written, tested, and released.
+ */
+int udf_CS0toUTF8(struct ustr *utf_o, struct ustr *ocu_i)
+{
+	uint8_t *ocu;
+	uint32_t c;
+	uint8_t cmp_id, ocu_len;
+	int i;
+
+	ocu = ocu_i->u_name;
+
+	ocu_len = ocu_i->u_len;
+	cmp_id = ocu_i->u_cmpID;
+	utf_o->u_len = 0;
+
+	if (ocu_len == 0)
+	{
+		memset(utf_o, 0, sizeof(struct ustr));
+		utf_o->u_cmpID = 0;
+		utf_o->u_len = 0;
+		return 0;
+	}
+
+	if ((cmp_id != 8) && (cmp_id != 16))
+	{
+		printk(KERN_ERR "udf: unknown compression code (%d) stri=%s\n", cmp_id, ocu_i->u_name);
+		return 0;
+	}
+
+	for (i = 0; (i < ocu_len) && (utf_o->u_len <= (UDF_NAME_LEN-3)) ;)
+	{
+
+		/* Expand OSTA compressed Unicode to Unicode */
+		c = ocu[i++];
+		if (cmp_id == 16)
+			c = (c << 8) | ocu[i++];
+
+		/* Compress Unicode to UTF-8 */
+		if (c < 0x80U)
+			utf_o->u_name[utf_o->u_len++] = (uint8_t)c;
+		else if (c < 0x800U)
+		{
+			utf_o->u_name[utf_o->u_len++] = (uint8_t)(0xc0 | (c >> 6));
+			utf_o->u_name[utf_o->u_len++] = (uint8_t)(0x80 | (c & 0x3f));
+		}
+		else
+		{
+			utf_o->u_name[utf_o->u_len++] = (uint8_t)(0xe0 | (c >> 12));
+			utf_o->u_name[utf_o->u_len++] = (uint8_t)(0x80 | ((c >> 6) & 0x3f));
+			utf_o->u_name[utf_o->u_len++] = (uint8_t)(0x80 | (c & 0x3f));
+		}
+	}
+	utf_o->u_cmpID=8;
+
+	return utf_o->u_len;
+}
+
+/*
+ *
+ * udf_utf8_to_ocu
+ *
+ * PURPOSE
+ *	Convert UTF-8 to the OSTA Compressed Unicode equivalent.
+ *
+ * DESCRIPTION
+ *	This routine is only called by udf_lookup().
+ *
+ * PRE-CONDITIONS
+ *	ocu			Pointer to OSTA Compressed Unicode output
+ *				buffer of size UDF_NAME_LEN bytes.
+ *	utf			Pointer to UTF-8 input buffer.
+ *	utf_len			Length of UTF-8 input buffer in bytes.
+ *
+ * POST-CONDITIONS
+ *	<return>		Zero on success.
+ *
+ * HISTORY
+ *	November 12, 1997 - Andrew E. Mileski
+ *	Written, tested, and released.
+ */
+int udf_UTF8toCS0(dstring *ocu, struct ustr *utf, int length)
+{
+	unsigned c, i, max_val, utf_char;
+	int utf_cnt;
+	int u_len = 0;
+
+	memset(ocu, 0, sizeof(dstring) * length);
+	ocu[0] = 8;
+	max_val = 0xffU;
+
+try_again:
+	utf_char = 0U;
+	utf_cnt = 0U;
+	for (i = 0U; i < utf->u_len; i++)
+	{
+		c = (uint8_t)utf->u_name[i];
+
+		/* Complete a multi-byte UTF-8 character */
+		if (utf_cnt)
+		{
+			utf_char = (utf_char << 6) | (c & 0x3fU);
+			if (--utf_cnt)
+				continue;
+		}
+		else
+		{
+			/* Check for a multi-byte UTF-8 character */
+			if (c & 0x80U)
+			{
+				/* Start a multi-byte UTF-8 character */
+				if ((c & 0xe0U) == 0xc0U)
+				{
+					utf_char = c & 0x1fU;
+					utf_cnt = 1;
+				}
+				else if ((c & 0xf0U) == 0xe0U)
+				{
+					utf_char = c & 0x0fU;
+					utf_cnt = 2;
+				}
+				else if ((c & 0xf8U) == 0xf0U)
+				{
+					utf_char = c & 0x07U;
+					utf_cnt = 3;
+				}
+				else if ((c & 0xfcU) == 0xf8U)
+				{
+					utf_char = c & 0x03U;
+					utf_cnt = 4;
+				}
+				else if ((c & 0xfeU) == 0xfcU)
+				{
+					utf_char = c & 0x01U;
+					utf_cnt = 5;
+				}
+				else
+					goto error_out;
+				continue;
+			} else
+				/* Single byte UTF-8 character (most common) */
+				utf_char = c;
+		}
+
+		/* Choose no compression if necessary */
+		if (utf_char > max_val)
+		{
+			if ( 0xffU == max_val )
+			{
+				max_val = 0xffffU;
+				ocu[0] = (uint8_t)0x10U;
+				goto try_again;
+			}
+			goto error_out;
+		}
+
+		if (max_val == 0xffffU)
+		{
+			ocu[++u_len] = (uint8_t)(utf_char >> 8);
+		}
+		ocu[++u_len] = (uint8_t)(utf_char & 0xffU);
+	}
+
+
+	if (utf_cnt)
+	{
+error_out:
+		printk(KERN_ERR "udf: bad UTF-8 character\n");
+		return 0;
+	}
+
+	ocu[length - 1] = (uint8_t)u_len + 1;
+	return u_len + 1;
+}
+
+int udf_CS0toNLS(struct nls_table *nls, struct ustr *utf_o, struct ustr *ocu_i)
+{
+	uint8_t *ocu;
+	uint32_t c;
+	uint8_t cmp_id, ocu_len;
+	int i;
+
+	ocu = ocu_i->u_name;
+
+	ocu_len = ocu_i->u_len;
+	cmp_id = ocu_i->u_cmpID;
+	utf_o->u_len = 0;
+
+	if (ocu_len == 0)
+	{
+		memset(utf_o, 0, sizeof(struct ustr));
+		utf_o->u_cmpID = 0;
+		utf_o->u_len = 0;
+		return 0;
+	}
+
+	if ((cmp_id != 8) && (cmp_id != 16))
+	{
+		printk(KERN_ERR "udf: unknown compression code (%d) stri=%s\n", cmp_id, ocu_i->u_name);
+		return 0;
+	}
+
+	for (i = 0; (i < ocu_len) && (utf_o->u_len <= (UDF_NAME_LEN-3)) ;)
+	{
+		/* Expand OSTA compressed Unicode to Unicode */
+		c = ocu[i++];
+		if (cmp_id == 16)
+			c = (c << 8) | ocu[i++];
+
+		utf_o->u_len += nls->uni2char(c, &utf_o->u_name[utf_o->u_len], 
+			UDF_NAME_LEN - utf_o->u_len);
+	}
+	utf_o->u_cmpID=8;
+
+	return utf_o->u_len;
+}
+
+int udf_NLStoCS0(struct nls_table *nls, dstring *ocu, struct ustr *uni, int length)
+{
+	unsigned len, i, max_val;
+	uint16_t uni_char;
+	int uni_cnt;
+	int u_len = 0;
+
+	memset(ocu, 0, sizeof(dstring) * length);
+	ocu[0] = 8;
+	max_val = 0xffU;
+
+try_again:
+	uni_char = 0U;
+	uni_cnt = 0U;
+	for (i = 0U; i < uni->u_len; i++)
+	{
+		len = nls->char2uni(&uni->u_name[i], uni->u_len-i, &uni_char);
+
+		if (len == 2 && max_val == 0xff)
+		{
+			max_val = 0xffffU;
+			ocu[0] = (uint8_t)0x10U;
+			goto try_again;
+		}
+		
+		if (max_val == 0xffffU)
+		{
+			ocu[++u_len] = (uint8_t)(uni_char >> 8);
+			i++;
+		}
+		ocu[++u_len] = (uint8_t)(uni_char & 0xffU);
+	}
+
+	ocu[length - 1] = (uint8_t)u_len + 1;
+	return u_len + 1;
+}
+
+int udf_get_filename(struct super_block *sb, uint8_t *sname, uint8_t *dname, int flen)
+{
+	struct ustr filename, unifilename;
+	int len;
+
+	if (udf_build_ustr_exact(&unifilename, sname, flen))
+	{
+		return 0;
+	}
+
+	if (UDF_QUERY_FLAG(sb, UDF_FLAG_UTF8))
+	{
+		if (!udf_CS0toUTF8(&filename, &unifilename) )
+		{
+			udf_debug("Failed in udf_get_filename: sname = %s\n", sname);
+			return 0;
+		}
+	}
+	else if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP))
+	{
+		if (!udf_CS0toNLS(UDF_SB(sb)->s_nls_map, &filename, &unifilename) )
+		{
+			udf_debug("Failed in udf_get_filename: sname = %s\n", sname);
+			return 0;
+		}
+	}
+	else
+		return 0;
+
+	if ((len = udf_translate_to_linux(dname, filename.u_name, filename.u_len,
+		unifilename.u_name, unifilename.u_len)))
+	{
+		return len;
+	}
+	return 0;
+}
+
+#define ILLEGAL_CHAR_MARK	'_'
+#define EXT_MARK			'.'
+#define CRC_MARK			'#'
+#define EXT_SIZE			5
+
+int udf_translate_to_linux(uint8_t *newName, uint8_t *udfName, int udfLen, uint8_t *fidName, int fidNameLen)
+{
+	int index, newIndex = 0, needsCRC = 0;	
+	int extIndex = 0, newExtIndex = 0, hasExt = 0;
+	unsigned short valueCRC;
+	uint8_t curr;
+	const uint8_t hexChar[] = "0123456789ABCDEF";
+
+	if (udfName[0] == '.' && (udfLen == 1 ||
+		(udfLen == 2 && udfName[1] == '.')))
+	{
+		needsCRC = 1;
+		newIndex = udfLen;
+		memcpy(newName, udfName, udfLen);
+	}
+	else
+	{	
+		for (index = 0; index < udfLen; index++)
+		{
+			curr = udfName[index];
+			if (curr == '/' || curr == 0)
+			{
+				needsCRC = 1;
+				curr = ILLEGAL_CHAR_MARK;
+				while (index+1 < udfLen && (udfName[index+1] == '/' ||
+					udfName[index+1] == 0))
+					index++;
+			}
+			if (curr == EXT_MARK && (udfLen - index - 1) <= EXT_SIZE)
+			{
+				if (udfLen == index + 1)
+					hasExt = 0;
+				else
+				{
+					hasExt = 1;
+					extIndex = index;
+					newExtIndex = newIndex;
+				}
+			}
+			if (newIndex < 256)
+				newName[newIndex++] = curr;
+			else
+				needsCRC = 1;
+		}
+	}
+	if (needsCRC)
+	{
+		uint8_t ext[EXT_SIZE];
+		int localExtIndex = 0;
+
+		if (hasExt)
+		{
+			int maxFilenameLen;
+			for(index = 0; index<EXT_SIZE && extIndex + index +1 < udfLen;
+				index++ )
+			{
+				curr = udfName[extIndex + index + 1];
+
+				if (curr == '/' || curr == 0)
+				{
+					needsCRC = 1;
+					curr = ILLEGAL_CHAR_MARK;
+					while(extIndex + index + 2 < udfLen && (index + 1 < EXT_SIZE
+						&& (udfName[extIndex + index + 2] == '/' ||
+							udfName[extIndex + index + 2] == 0)))
+						index++;
+				}
+				ext[localExtIndex++] = curr;
+			}
+			maxFilenameLen = 250 - localExtIndex;
+			if (newIndex > maxFilenameLen)
+				newIndex = maxFilenameLen;
+			else
+				newIndex = newExtIndex;
+		}
+		else if (newIndex > 250)
+			newIndex = 250;
+		newName[newIndex++] = CRC_MARK;
+		valueCRC = udf_crc(fidName, fidNameLen, 0);
+		newName[newIndex++] = hexChar[(valueCRC & 0xf000) >> 12];
+		newName[newIndex++] = hexChar[(valueCRC & 0x0f00) >> 8];
+		newName[newIndex++] = hexChar[(valueCRC & 0x00f0) >> 4];
+		newName[newIndex++] = hexChar[(valueCRC & 0x000f)];
+
+		if (hasExt)
+		{
+			newName[newIndex++] = EXT_MARK;
+			for (index = 0;index < localExtIndex ;index++ )
+				newName[newIndex++] = ext[index];
+		}
+	}
+	return newIndex;
+}
diff --git a/fs/ufs/Makefile b/fs/ufs/Makefile
new file mode 100644
index 00000000000000..4e74b2459bacab
--- /dev/null
+++ b/fs/ufs/Makefile
@@ -0,0 +1,16 @@
+#
+# Makefile for the Linux ufs filesystem routines.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile.
+
+O_TARGET := ufs.o
+
+obj-y   := balloc.o cylinder.o dir.o file.o ialloc.o inode.o \
+		namei.o super.o symlink.o truncate.o util.o
+obj-m   := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/ufs/balloc.c b/fs/ufs/balloc.c
new file mode 100644
index 00000000000000..734d7d210c2e37
--- /dev/null
+++ b/fs/ufs/balloc.c
@@ -0,0 +1,815 @@
+/*
+ *  linux/fs/ufs/balloc.c
+ *
+ * Copyright (C) 1998
+ * Daniel Pirkl <daniel.pirkl@email.cz>
+ * Charles University, Faculty of Mathematics and Physics
+ */
+
+#include <linux/fs.h>
+#include <linux/ufs_fs.h>
+#include <linux/stat.h>
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/locks.h>
+#include <linux/quotaops.h>
+#include <asm/bitops.h>
+#include <asm/byteorder.h>
+
+#include "swab.h"
+#include "util.h"
+
+#undef UFS_BALLOC_DEBUG
+
+#ifdef UFS_BALLOC_DEBUG
+#define UFSD(x) printk("(%s, %d), %s:", __FILE__, __LINE__, __FUNCTION__); printk x;
+#else
+#define UFSD(x)
+#endif
+
+unsigned ufs_add_fragments (struct inode *, unsigned, unsigned, unsigned, int *);
+unsigned ufs_alloc_fragments (struct inode *, unsigned, unsigned, unsigned, int *);
+unsigned ufs_alloccg_block (struct inode *, struct ufs_cg_private_info *, unsigned, int *);
+unsigned ufs_bitmap_search (struct super_block *, struct ufs_cg_private_info *, unsigned, unsigned);
+static unsigned char ufs_fragtable_8fpb[], ufs_fragtable_other[];
+void ufs_clusteracct(struct super_block *, struct ufs_cg_private_info *, unsigned, int);
+
+/*
+ * Free 'count' fragments from fragment number 'fragment'
+ */
+void ufs_free_fragments (struct inode * inode, unsigned fragment, unsigned count) {
+	struct super_block * sb;
+	struct ufs_sb_private_info * uspi;
+	struct ufs_super_block_first * usb1;
+	struct ufs_cg_private_info * ucpi;
+	struct ufs_cylinder_group * ucg;
+	unsigned cgno, bit, end_bit, bbase, blkmap, i, blkno, cylno;
+	
+	sb = inode->i_sb;
+	uspi = sb->u.ufs_sb.s_uspi;
+	usb1 = ubh_get_usb_first(USPI_UBH);
+	
+	UFSD(("ENTER, fragment %u, count %u\n", fragment, count))
+	
+	if (ufs_fragnum(fragment) + count > uspi->s_fpg)
+		ufs_error (sb, "ufs_free_fragments", "internal error");
+	
+	lock_super(sb);
+	
+	cgno = ufs_dtog(fragment);
+	bit = ufs_dtogd(fragment);
+	if (cgno >= uspi->s_ncg) {
+		ufs_panic (sb, "ufs_free_fragments", "freeing blocks are outside device");
+		goto failed;
+	}
+		
+	ucpi = ufs_load_cylinder (sb, cgno);
+	if (!ucpi) 
+		goto failed;
+	ucg = ubh_get_ucg (UCPI_UBH);
+	if (!ufs_cg_chkmagic(sb, ucg)) {
+		ufs_panic (sb, "ufs_free_fragments", "internal error, bad magic number on cg %u", cgno);
+		goto failed;
+	}
+
+	end_bit = bit + count;
+	bbase = ufs_blknum (bit);
+	blkmap = ubh_blkmap (UCPI_UBH, ucpi->c_freeoff, bbase);
+	ufs_fragacct (sb, blkmap, ucg->cg_frsum, -1);
+	for (i = bit; i < end_bit; i++) {
+		if (ubh_isclr (UCPI_UBH, ucpi->c_freeoff, i))
+			ubh_setbit (UCPI_UBH, ucpi->c_freeoff, i);
+		else ufs_error (sb, "ufs_free_fragments",
+			"bit already cleared for fragment %u", i);
+	}
+	
+	DQUOT_FREE_BLOCK (inode, count);
+
+	
+	fs32_add(sb, &ucg->cg_cs.cs_nffree, count);
+	fs32_add(sb, &usb1->fs_cstotal.cs_nffree, count);
+	fs32_add(sb, &sb->fs_cs(cgno).cs_nffree, count);
+	blkmap = ubh_blkmap (UCPI_UBH, ucpi->c_freeoff, bbase);
+	ufs_fragacct(sb, blkmap, ucg->cg_frsum, 1);
+
+	/*
+	 * Trying to reassemble free fragments into block
+	 */
+	blkno = ufs_fragstoblks (bbase);
+	if (ubh_isblockset(UCPI_UBH, ucpi->c_freeoff, blkno)) {
+		fs32_sub(sb, &ucg->cg_cs.cs_nffree, uspi->s_fpb);
+		fs32_sub(sb, &usb1->fs_cstotal.cs_nffree, uspi->s_fpb);
+		fs32_sub(sb, &sb->fs_cs(cgno).cs_nffree, uspi->s_fpb);
+		if ((sb->u.ufs_sb.s_flags & UFS_CG_MASK) == UFS_CG_44BSD)
+			ufs_clusteracct (sb, ucpi, blkno, 1);
+		fs32_add(sb, &ucg->cg_cs.cs_nbfree, 1);
+		fs32_add(sb, &usb1->fs_cstotal.cs_nbfree, 1);
+		fs32_add(sb, &sb->fs_cs(cgno).cs_nbfree, 1);
+		cylno = ufs_cbtocylno (bbase);
+		fs16_add(sb, &ubh_cg_blks(ucpi, cylno, ufs_cbtorpos(bbase)), 1);
+		fs32_add(sb, &ubh_cg_blktot(ucpi, cylno), 1);
+	}
+	
+	ubh_mark_buffer_dirty (USPI_UBH);
+	ubh_mark_buffer_dirty (UCPI_UBH);
+	if (sb->s_flags & MS_SYNCHRONOUS) {
+		ubh_ll_rw_block (WRITE, 1, (struct ufs_buffer_head **)&ucpi);
+		ubh_wait_on_buffer (UCPI_UBH);
+	}
+	sb->s_dirt = 1;
+	
+	unlock_super (sb);
+	UFSD(("EXIT\n"))
+	return;
+
+failed:
+	unlock_super (sb);
+	UFSD(("EXIT (FAILED)\n"))
+	return;
+}
+
+/*
+ * Free 'count' fragments from fragment number 'fragment' (free whole blocks)
+ */
+void ufs_free_blocks (struct inode * inode, unsigned fragment, unsigned count) {
+	struct super_block * sb;
+	struct ufs_sb_private_info * uspi;
+	struct ufs_super_block_first * usb1;
+	struct ufs_cg_private_info * ucpi;
+	struct ufs_cylinder_group * ucg;
+	unsigned overflow, cgno, bit, end_bit, blkno, i, cylno;
+	
+	sb = inode->i_sb;
+	uspi = sb->u.ufs_sb.s_uspi;
+	usb1 = ubh_get_usb_first(USPI_UBH);
+
+	UFSD(("ENTER, fragment %u, count %u\n", fragment, count))
+	
+	if ((fragment & uspi->s_fpbmask) || (count & uspi->s_fpbmask)) {
+		ufs_error (sb, "ufs_free_blocks", "internal error, "
+			"fragment %u, count %u\n", fragment, count);
+		goto failed;
+	}
+
+	lock_super(sb);
+	
+do_more:
+	overflow = 0;
+	cgno = ufs_dtog (fragment);
+	bit = ufs_dtogd (fragment);
+	if (cgno >= uspi->s_ncg) {
+		ufs_panic (sb, "ufs_free_blocks", "freeing blocks are outside device");
+		goto failed;
+	}
+	end_bit = bit + count;
+	if (end_bit > uspi->s_fpg) {
+		overflow = bit + count - uspi->s_fpg;
+		count -= overflow;
+		end_bit -= overflow;
+	}
+
+	ucpi = ufs_load_cylinder (sb, cgno);
+	if (!ucpi) 
+		goto failed;
+	ucg = ubh_get_ucg (UCPI_UBH);
+	if (!ufs_cg_chkmagic(sb, ucg)) {
+		ufs_panic (sb, "ufs_free_blocks", "internal error, bad magic number on cg %u", cgno);
+		goto failed;
+	}
+
+	for (i = bit; i < end_bit; i += uspi->s_fpb) {
+		blkno = ufs_fragstoblks(i);
+		if (ubh_isblockset(UCPI_UBH, ucpi->c_freeoff, blkno)) {
+			ufs_error(sb, "ufs_free_blocks", "freeing free fragment");
+		}
+		ubh_setblock(UCPI_UBH, ucpi->c_freeoff, blkno);
+		if ((sb->u.ufs_sb.s_flags & UFS_CG_MASK) == UFS_CG_44BSD)
+			ufs_clusteracct (sb, ucpi, blkno, 1);
+		DQUOT_FREE_BLOCK(inode, uspi->s_fpb);
+
+		fs32_add(sb, &ucg->cg_cs.cs_nbfree, 1);
+		fs32_add(sb, &usb1->fs_cstotal.cs_nbfree, 1);
+		fs32_add(sb, &sb->fs_cs(cgno).cs_nbfree, 1);
+		cylno = ufs_cbtocylno(i);
+		fs16_add(sb, &ubh_cg_blks(ucpi, cylno, ufs_cbtorpos(i)), 1);
+		fs32_add(sb, &ubh_cg_blktot(ucpi, cylno), 1);
+	}
+
+	ubh_mark_buffer_dirty (USPI_UBH);
+	ubh_mark_buffer_dirty (UCPI_UBH);
+	if (sb->s_flags & MS_SYNCHRONOUS) {
+		ubh_ll_rw_block (WRITE, 1, (struct ufs_buffer_head **)&ucpi);
+		ubh_wait_on_buffer (UCPI_UBH);
+	}
+
+	if (overflow) {
+		fragment += count;
+		count = overflow;
+		goto do_more;
+	}
+
+	sb->s_dirt = 1;
+	unlock_super (sb);
+	UFSD(("EXIT\n"))
+	return;
+
+failed:
+	unlock_super (sb);
+	UFSD(("EXIT (FAILED)\n"))
+	return;
+}
+
+
+
+#define NULLIFY_FRAGMENTS \
+	for (i = oldcount; i < newcount; i++) { \
+		bh = sb_getblk(sb, result + i); \
+		memset (bh->b_data, 0, sb->s_blocksize); \
+		mark_buffer_uptodate(bh, 1); \
+		mark_buffer_dirty (bh); \
+		if (IS_SYNC(inode)) { \
+			ll_rw_block (WRITE, 1, &bh); \
+			wait_on_buffer (bh); \
+		} \
+		brelse (bh); \
+	}
+
+unsigned ufs_new_fragments (struct inode * inode, u32 * p, unsigned fragment,
+	unsigned goal, unsigned count, int * err )
+{
+	struct super_block * sb;
+	struct ufs_sb_private_info * uspi;
+	struct ufs_super_block_first * usb1;
+	struct buffer_head * bh;
+	unsigned cgno, oldcount, newcount, tmp, request, i, result;
+	
+	UFSD(("ENTER, ino %lu, fragment %u, goal %u, count %u\n", inode->i_ino, fragment, goal, count))
+	
+	sb = inode->i_sb;
+	uspi = sb->u.ufs_sb.s_uspi;
+	usb1 = ubh_get_usb_first(USPI_UBH);
+	*err = -ENOSPC;
+
+	lock_super (sb);
+	
+	tmp = fs32_to_cpu(sb, *p);
+	if (count + ufs_fragnum(fragment) > uspi->s_fpb) {
+		ufs_warning (sb, "ufs_new_fragments", "internal warning"
+			" fragment %u, count %u", fragment, count);
+		count = uspi->s_fpb - ufs_fragnum(fragment); 
+	}
+	oldcount = ufs_fragnum (fragment);
+	newcount = oldcount + count;
+
+	/*
+	 * Somebody else has just allocated our fragments
+	 */
+	if (oldcount) {
+		if (!tmp) {
+			ufs_error (sb, "ufs_new_fragments", "internal error, "
+				"fragment %u, tmp %u\n", fragment, tmp);
+			unlock_super (sb);
+			return (unsigned)-1;
+		}
+		if (fragment < inode->u.ufs_i.i_lastfrag) {
+			UFSD(("EXIT (ALREADY ALLOCATED)\n"))
+			unlock_super (sb);
+			return 0;
+		}
+	}
+	else {
+		if (tmp) {
+			UFSD(("EXIT (ALREADY ALLOCATED)\n"))
+			unlock_super(sb);
+			return 0;
+		}
+	}
+
+	/*
+	 * There is not enough space for user on the device
+	 */
+	if (!capable(CAP_SYS_RESOURCE) && ufs_freespace(usb1, UFS_MINFREE) <= 0) {
+		unlock_super (sb);
+		UFSD(("EXIT (FAILED)\n"))
+		return 0;
+	}
+
+	if (goal >= uspi->s_size) 
+		goal = 0;
+	if (goal == 0) 
+		cgno = ufs_inotocg (inode->i_ino);
+	else
+		cgno = ufs_dtog (goal);
+	 
+	/*
+	 * allocate new fragment
+	 */
+	if (oldcount == 0) {
+		result = ufs_alloc_fragments (inode, cgno, goal, count, err);
+		if (result) {
+			*p = cpu_to_fs32(sb, result);
+			*err = 0;
+			inode->i_blocks += count << uspi->s_nspfshift;
+			inode->u.ufs_i.i_lastfrag = max_t(u32, inode->u.ufs_i.i_lastfrag, fragment + count);
+			NULLIFY_FRAGMENTS
+		}
+		unlock_super(sb);
+		UFSD(("EXIT, result %u\n", result))
+		return result;
+	}
+
+	/*
+	 * resize block
+	 */
+	result = ufs_add_fragments (inode, tmp, oldcount, newcount, err);
+	if (result) {
+		*err = 0;
+		inode->i_blocks += count << uspi->s_nspfshift;
+		inode->u.ufs_i.i_lastfrag = max_t(u32, inode->u.ufs_i.i_lastfrag, fragment + count);
+		NULLIFY_FRAGMENTS
+		unlock_super(sb);
+		UFSD(("EXIT, result %u\n", result))
+		return result;
+	}
+
+	/*
+	 * allocate new block and move data
+	 */
+	switch (fs32_to_cpu(sb, usb1->fs_optim)) {
+	    case UFS_OPTSPACE:
+		request = newcount;
+		if (uspi->s_minfree < 5 || fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree) 
+		    > uspi->s_dsize * uspi->s_minfree / (2 * 100) )
+			break;
+		usb1->fs_optim = cpu_to_fs32(sb, UFS_OPTTIME);
+		break;
+	    default:
+		usb1->fs_optim = cpu_to_fs32(sb, UFS_OPTTIME);
+	
+	    case UFS_OPTTIME:
+		request = uspi->s_fpb;
+		if (fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree) < uspi->s_dsize *
+		    (uspi->s_minfree - 2) / 100)
+			break;
+		usb1->fs_optim = cpu_to_fs32(sb, UFS_OPTTIME);
+		break;
+	}
+	result = ufs_alloc_fragments (inode, cgno, goal, request, err);
+	if (result) {
+		for (i = 0; i < oldcount; i++) {
+			bh = sb_bread(sb, tmp + i);
+			if(bh)
+			{
+				mark_buffer_clean (bh);
+				bh->b_blocknr = result + i;
+				mark_buffer_dirty (bh);
+				if (IS_SYNC(inode)) {
+					ll_rw_block (WRITE, 1, &bh);
+					wait_on_buffer (bh);
+				}
+				brelse (bh);
+			}
+			else
+			{
+				printk(KERN_ERR "ufs_new_fragments: bread fail\n");
+				return 0;
+			}
+		}
+		*p = cpu_to_fs32(sb, result);
+		*err = 0;
+		inode->i_blocks += count << uspi->s_nspfshift;
+		inode->u.ufs_i.i_lastfrag = max_t(u32, inode->u.ufs_i.i_lastfrag, fragment + count);
+		NULLIFY_FRAGMENTS
+		unlock_super(sb);
+		if (newcount < request)
+			ufs_free_fragments (inode, result + newcount, request - newcount);
+		ufs_free_fragments (inode, tmp, oldcount);
+		UFSD(("EXIT, result %u\n", result))
+		return result;
+	}
+
+	unlock_super(sb);
+	UFSD(("EXIT (FAILED)\n"))
+	return 0;
+}		
+
+unsigned ufs_add_fragments (struct inode * inode, unsigned fragment,
+	unsigned oldcount, unsigned newcount, int * err)
+{
+	struct super_block * sb;
+	struct ufs_sb_private_info * uspi;
+	struct ufs_super_block_first * usb1;
+	struct ufs_cg_private_info * ucpi;
+	struct ufs_cylinder_group * ucg;
+	unsigned cgno, fragno, fragoff, count, fragsize, i;
+	
+	UFSD(("ENTER, fragment %u, oldcount %u, newcount %u\n", fragment, oldcount, newcount))
+	
+	sb = inode->i_sb;
+	uspi = sb->u.ufs_sb.s_uspi;
+	usb1 = ubh_get_usb_first (USPI_UBH);
+	count = newcount - oldcount;
+	
+	cgno = ufs_dtog(fragment);
+	if (sb->fs_cs(cgno).cs_nffree < count)
+		return 0;
+	if ((ufs_fragnum (fragment) + newcount) > uspi->s_fpb)
+		return 0;
+	ucpi = ufs_load_cylinder (sb, cgno);
+	if (!ucpi)
+		return 0;
+	ucg = ubh_get_ucg (UCPI_UBH);
+	if (!ufs_cg_chkmagic(sb, ucg)) {
+		ufs_panic (sb, "ufs_add_fragments",
+			"internal error, bad magic number on cg %u", cgno);
+		return 0;
+	}
+
+	fragno = ufs_dtogd (fragment);
+	fragoff = ufs_fragnum (fragno);
+	for (i = oldcount; i < newcount; i++)
+		if (ubh_isclr (UCPI_UBH, ucpi->c_freeoff, fragno + i))
+			return 0;
+	/*
+	 * Block can be extended
+	 */
+	ucg->cg_time = cpu_to_fs32(sb, CURRENT_TIME);
+	for (i = newcount; i < (uspi->s_fpb - fragoff); i++)
+		if (ubh_isclr (UCPI_UBH, ucpi->c_freeoff, fragno + i))
+			break;
+	fragsize = i - oldcount;
+	if (!fs32_to_cpu(sb, ucg->cg_frsum[fragsize]))
+		ufs_panic (sb, "ufs_add_fragments",
+			"internal error or corrupted bitmap on cg %u", cgno);
+	fs32_sub(sb, &ucg->cg_frsum[fragsize], 1);
+	if (fragsize != count)
+		fs32_add(sb, &ucg->cg_frsum[fragsize - count], 1);
+	for (i = oldcount; i < newcount; i++)
+		ubh_clrbit (UCPI_UBH, ucpi->c_freeoff, fragno + i);
+	if(DQUOT_ALLOC_BLOCK(inode, count)) {
+		*err = -EDQUOT;
+		return 0;
+	}
+
+	fs32_sub(sb, &ucg->cg_cs.cs_nffree, count);
+	fs32_sub(sb, &sb->fs_cs(cgno).cs_nffree, count);
+	fs32_sub(sb, &usb1->fs_cstotal.cs_nffree, count);
+	
+	ubh_mark_buffer_dirty (USPI_UBH);
+	ubh_mark_buffer_dirty (UCPI_UBH);
+	if (sb->s_flags & MS_SYNCHRONOUS) {
+		ubh_ll_rw_block (WRITE, 1, (struct ufs_buffer_head **)&ucpi);
+		ubh_wait_on_buffer (UCPI_UBH);
+	}
+	sb->s_dirt = 1;
+
+	UFSD(("EXIT, fragment %u\n", fragment))
+	
+	return fragment;
+}
+
+#define UFS_TEST_FREE_SPACE_CG \
+	ucg = (struct ufs_cylinder_group *) sb->u.ufs_sb.s_ucg[cgno]->b_data; \
+	if (fs32_to_cpu(sb, ucg->cg_cs.cs_nbfree)) \
+		goto cg_found; \
+	for (k = count; k < uspi->s_fpb; k++) \
+		if (fs32_to_cpu(sb, ucg->cg_frsum[k])) \
+			goto cg_found; 
+
+unsigned ufs_alloc_fragments (struct inode * inode, unsigned cgno,
+	unsigned goal, unsigned count, int * err)
+{
+	struct super_block * sb;
+	struct ufs_sb_private_info * uspi;
+	struct ufs_super_block_first * usb1;
+	struct ufs_cg_private_info * ucpi;
+	struct ufs_cylinder_group * ucg;
+	unsigned oldcg, i, j, k, result, allocsize;
+	
+	UFSD(("ENTER, ino %lu, cgno %u, goal %u, count %u\n", inode->i_ino, cgno, goal, count))
+
+	sb = inode->i_sb;
+	uspi = sb->u.ufs_sb.s_uspi;
+	usb1 = ubh_get_usb_first(USPI_UBH);
+	oldcg = cgno;
+	
+	/*
+	 * 1. searching on preferred cylinder group
+	 */
+	UFS_TEST_FREE_SPACE_CG
+
+	/*
+	 * 2. quadratic rehash
+	 */
+	for (j = 1; j < uspi->s_ncg; j *= 2) {
+		cgno += j;
+		if (cgno >= uspi->s_ncg) 
+			cgno -= uspi->s_ncg;
+		UFS_TEST_FREE_SPACE_CG
+	}
+
+	/*
+	 * 3. brute force search
+	 * We start at i = 2 ( 0 is checked at 1.step, 1 at 2.step )
+	 */
+	cgno = (oldcg + 1) % uspi->s_ncg;
+	for (j = 2; j < uspi->s_ncg; j++) {
+		cgno++;
+		if (cgno >= uspi->s_ncg)
+			cgno = 0;
+		UFS_TEST_FREE_SPACE_CG
+	}
+	
+	UFSD(("EXIT (FAILED)\n"))
+	return 0;
+
+cg_found:
+	ucpi = ufs_load_cylinder (sb, cgno);
+	if (!ucpi)
+		return 0;
+	ucg = ubh_get_ucg (UCPI_UBH);
+	if (!ufs_cg_chkmagic(sb, ucg)) 
+		ufs_panic (sb, "ufs_alloc_fragments",
+			"internal error, bad magic number on cg %u", cgno);
+	ucg->cg_time = cpu_to_fs32(sb, CURRENT_TIME);
+
+	if (count == uspi->s_fpb) {
+		result = ufs_alloccg_block (inode, ucpi, goal, err);
+		if (result == (unsigned)-1)
+			return 0;
+		goto succed;
+	}
+
+	for (allocsize = count; allocsize < uspi->s_fpb; allocsize++)
+		if (fs32_to_cpu(sb, ucg->cg_frsum[allocsize]) != 0)
+			break;
+	
+	if (allocsize == uspi->s_fpb) {
+		result = ufs_alloccg_block (inode, ucpi, goal, err);
+		if (result == (unsigned)-1)
+			return 0;
+		goal = ufs_dtogd (result);
+		for (i = count; i < uspi->s_fpb; i++)
+			ubh_setbit (UCPI_UBH, ucpi->c_freeoff, goal + i);
+		i = uspi->s_fpb - count;
+		DQUOT_FREE_BLOCK(inode, i);
+
+		fs32_add(sb, &ucg->cg_cs.cs_nffree, i);
+		fs32_add(sb, &usb1->fs_cstotal.cs_nffree, i);
+		fs32_add(sb, &sb->fs_cs(cgno).cs_nffree, i);
+		fs32_add(sb, &ucg->cg_frsum[i], 1);
+		goto succed;
+	}
+
+	result = ufs_bitmap_search (sb, ucpi, goal, allocsize);
+	if (result == (unsigned)-1)
+		return 0;
+	if(DQUOT_ALLOC_BLOCK(inode, count)) {
+		*err = -EDQUOT;
+		return 0;
+	}
+	for (i = 0; i < count; i++)
+		ubh_clrbit (UCPI_UBH, ucpi->c_freeoff, result + i);
+	
+	fs32_sub(sb, &ucg->cg_cs.cs_nffree, count);
+	fs32_sub(sb, &usb1->fs_cstotal.cs_nffree, count);
+	fs32_sub(sb, &sb->fs_cs(cgno).cs_nffree, count);
+	fs32_sub(sb, &ucg->cg_frsum[allocsize], 1);
+
+	if (count != allocsize)
+		fs32_add(sb, &ucg->cg_frsum[allocsize - count], 1);
+
+succed:
+	ubh_mark_buffer_dirty (USPI_UBH);
+	ubh_mark_buffer_dirty (UCPI_UBH);
+	if (sb->s_flags & MS_SYNCHRONOUS) {
+		ubh_ll_rw_block (WRITE, 1, (struct ufs_buffer_head **)&ucpi);
+		ubh_wait_on_buffer (UCPI_UBH);
+	}
+	sb->s_dirt = 1;
+
+	result += cgno * uspi->s_fpg;
+	UFSD(("EXIT3, result %u\n", result))
+	return result;
+}
+
+unsigned ufs_alloccg_block (struct inode * inode,
+	struct ufs_cg_private_info * ucpi, unsigned goal, int * err)
+{
+	struct super_block * sb;
+	struct ufs_sb_private_info * uspi;
+	struct ufs_super_block_first * usb1;
+	struct ufs_cylinder_group * ucg;
+	unsigned result, cylno, blkno;
+
+	UFSD(("ENTER, goal %u\n", goal))
+
+	sb = inode->i_sb;
+	uspi = sb->u.ufs_sb.s_uspi;
+	usb1 = ubh_get_usb_first(USPI_UBH);
+	ucg = ubh_get_ucg(UCPI_UBH);
+
+	if (goal == 0) {
+		goal = ucpi->c_rotor;
+		goto norot;
+	}
+	goal = ufs_blknum (goal);
+	goal = ufs_dtogd (goal);
+	
+	/*
+	 * If the requested block is available, use it.
+	 */
+	if (ubh_isblockset(UCPI_UBH, ucpi->c_freeoff, ufs_fragstoblks(goal))) {
+		result = goal;
+		goto gotit;
+	}
+	
+norot:	
+	result = ufs_bitmap_search (sb, ucpi, goal, uspi->s_fpb);
+	if (result == (unsigned)-1)
+		return (unsigned)-1;
+	ucpi->c_rotor = result;
+gotit:
+	blkno = ufs_fragstoblks(result);
+	ubh_clrblock (UCPI_UBH, ucpi->c_freeoff, blkno);
+	if ((sb->u.ufs_sb.s_flags & UFS_CG_MASK) == UFS_CG_44BSD)
+		ufs_clusteracct (sb, ucpi, blkno, -1);
+	if(DQUOT_ALLOC_BLOCK(inode, uspi->s_fpb)) {
+		*err = -EDQUOT;
+		return (unsigned)-1;
+	}
+
+	fs32_sub(sb, &ucg->cg_cs.cs_nbfree, 1);
+	fs32_sub(sb, &usb1->fs_cstotal.cs_nbfree, 1);
+	fs32_sub(sb, &sb->fs_cs(ucpi->c_cgx).cs_nbfree, 1);
+	cylno = ufs_cbtocylno(result);
+	fs16_sub(sb, &ubh_cg_blks(ucpi, cylno, ufs_cbtorpos(result)), 1);
+	fs32_sub(sb, &ubh_cg_blktot(ucpi, cylno), 1);
+	
+	UFSD(("EXIT, result %u\n", result))
+
+	return result;
+}
+
+unsigned ufs_bitmap_search (struct super_block * sb,
+	struct ufs_cg_private_info * ucpi, unsigned goal, unsigned count)
+{
+	struct ufs_sb_private_info * uspi;
+	struct ufs_super_block_first * usb1;
+	struct ufs_cylinder_group * ucg;
+	unsigned start, length, location, result;
+	unsigned possition, fragsize, blockmap, mask;
+	
+	UFSD(("ENTER, cg %u, goal %u, count %u\n", ucpi->c_cgx, goal, count))
+
+	uspi = sb->u.ufs_sb.s_uspi;
+	usb1 = ubh_get_usb_first (USPI_UBH);
+	ucg = ubh_get_ucg(UCPI_UBH);
+
+	if (goal)
+		start = ufs_dtogd(goal) >> 3;
+	else
+		start = ucpi->c_frotor >> 3;
+		
+	length = ((uspi->s_fpg + 7) >> 3) - start;
+	location = ubh_scanc(UCPI_UBH, ucpi->c_freeoff + start, length,
+		(uspi->s_fpb == 8) ? ufs_fragtable_8fpb : ufs_fragtable_other,
+		1 << (count - 1 + (uspi->s_fpb & 7))); 
+	if (location == 0) {
+		length = start + 1;
+		location = ubh_scanc(UCPI_UBH, ucpi->c_freeoff, length, 
+			(uspi->s_fpb == 8) ? ufs_fragtable_8fpb : ufs_fragtable_other,
+			1 << (count - 1 + (uspi->s_fpb & 7)));
+		if (location == 0) {
+			ufs_error (sb, "ufs_bitmap_search",
+			"bitmap corrupted on cg %u, start %u, length %u, count %u, freeoff %u\n",
+			ucpi->c_cgx, start, length, count, ucpi->c_freeoff);
+			return (unsigned)-1;
+		}
+		start = 0;
+	}
+	result = (start + length - location) << 3;
+	ucpi->c_frotor = result;
+
+	/*
+	 * found the byte in the map
+	 */
+	blockmap = ubh_blkmap(UCPI_UBH, ucpi->c_freeoff, result);
+	fragsize = 0;
+	for (possition = 0, mask = 1; possition < 8; possition++, mask <<= 1) {
+		if (blockmap & mask) {
+			if (!(possition & uspi->s_fpbmask))
+				fragsize = 1;
+			else 
+				fragsize++;
+		}
+		else {
+			if (fragsize == count) {
+				result += possition - count;
+				UFSD(("EXIT, result %u\n", result))
+				return result;
+			}
+			fragsize = 0;
+		}
+	}
+	if (fragsize == count) {
+		result += possition - count;
+		UFSD(("EXIT, result %u\n", result))
+		return result;
+	}
+	ufs_error (sb, "ufs_bitmap_search", "block not in map on cg %u\n", ucpi->c_cgx);
+	UFSD(("EXIT (FAILED)\n"))
+	return (unsigned)-1;
+}
+
+void ufs_clusteracct(struct super_block * sb, 
+	struct ufs_cg_private_info * ucpi, unsigned blkno, int cnt)
+{
+	struct ufs_sb_private_info * uspi;
+	int i, start, end, forw, back;
+	
+	uspi = sb->u.ufs_sb.s_uspi;
+	if (uspi->s_contigsumsize <= 0)
+		return;
+
+	if (cnt > 0)
+		ubh_setbit(UCPI_UBH, ucpi->c_clusteroff, blkno);
+	else
+		ubh_clrbit(UCPI_UBH, ucpi->c_clusteroff, blkno);
+
+	/*
+	 * Find the size of the cluster going forward.
+	 */
+	start = blkno + 1;
+	end = start + uspi->s_contigsumsize;
+	if ( end >= ucpi->c_nclusterblks)
+		end = ucpi->c_nclusterblks;
+	i = ubh_find_next_zero_bit (UCPI_UBH, ucpi->c_clusteroff, end, start);
+	if (i > end)
+		i = end;
+	forw = i - start;
+	
+	/*
+	 * Find the size of the cluster going backward.
+	 */
+	start = blkno - 1;
+	end = start - uspi->s_contigsumsize;
+	if (end < 0 ) 
+		end = -1;
+	i = ubh_find_last_zero_bit (UCPI_UBH, ucpi->c_clusteroff, start, end);
+	if ( i < end) 
+		i = end;
+	back = start - i;
+	
+	/*
+	 * Account for old cluster and the possibly new forward and
+	 * back clusters.
+	 */
+	i = back + forw + 1;
+	if (i > uspi->s_contigsumsize)
+		i = uspi->s_contigsumsize;
+	fs32_add(sb, (u32*)ubh_get_addr(UCPI_UBH, ucpi->c_clustersumoff + (i << 2)), cnt);
+	if (back > 0)
+		fs32_sub(sb, (u32*)ubh_get_addr(UCPI_UBH, ucpi->c_clustersumoff + (back << 2)), cnt);
+	if (forw > 0)
+		fs32_sub(sb, (u32*)ubh_get_addr(UCPI_UBH, ucpi->c_clustersumoff + (forw << 2)), cnt);
+}
+
+
+static unsigned char ufs_fragtable_8fpb[] = {
+	0x00, 0x01, 0x01, 0x02, 0x01, 0x01, 0x02, 0x04, 0x01, 0x01, 0x01, 0x03, 0x02, 0x03, 0x04, 0x08,
+	0x01, 0x01, 0x01, 0x03, 0x01, 0x01, 0x03, 0x05, 0x02, 0x03, 0x03, 0x02, 0x04, 0x05, 0x08, 0x10,
+	0x01, 0x01, 0x01, 0x03, 0x01, 0x01, 0x03, 0x05, 0x01, 0x01, 0x01, 0x03, 0x03, 0x03, 0x05, 0x09,
+	0x02, 0x03, 0x03, 0x02, 0x03, 0x03, 0x02, 0x06, 0x04, 0x05, 0x05, 0x06, 0x08, 0x09, 0x10, 0x20,
+	0x01, 0x01, 0x01, 0x03, 0x01, 0x01, 0x03, 0x05, 0x01, 0x01, 0x01, 0x03, 0x03, 0x03, 0x05, 0x09,	
+	0x01, 0x01, 0x01, 0x03, 0x01, 0x01, 0x03, 0x05, 0x03, 0x03, 0x03, 0x03, 0x05, 0x05, 0x09, 0x11,
+	0x02, 0x03, 0x03, 0x02, 0x03, 0x03, 0x02, 0x06, 0x03, 0x03, 0x03, 0x03, 0x02, 0x03, 0x06, 0x0A,
+	0x04, 0x05, 0x05, 0x06, 0x05, 0x05, 0x06, 0x04, 0x08, 0x09, 0x09, 0x0A, 0x10, 0x11, 0x20, 0x40,
+	0x01, 0x01, 0x01, 0x03, 0x01, 0x01, 0x03, 0x05, 0x01, 0x01, 0x01, 0x03, 0x03, 0x03, 0x05, 0x09,
+	0x01, 0x01, 0x01, 0x03, 0x01, 0x01, 0x03, 0x05, 0x03, 0x03, 0x03, 0x03, 0x05, 0x05, 0x09, 0x11,
+	0x01, 0x01, 0x01, 0x03, 0x01, 0x01, 0x03, 0x05, 0x01, 0x01, 0x01, 0x03, 0x03, 0x03, 0x05, 0x09,
+	0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x07, 0x05, 0x05, 0x05, 0x07, 0x09, 0x09, 0x11, 0x21,
+	0x02, 0x03, 0x03, 0x02, 0x03, 0x03, 0x02, 0x06, 0x03, 0x03, 0x03, 0x03, 0x02, 0x03, 0x06, 0x0A,
+	0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x07, 0x02, 0x03, 0x03, 0x02, 0x06, 0x07, 0x0A, 0x12,
+	0x04, 0x05, 0x05, 0x06, 0x05, 0x05, 0x06, 0x04, 0x05, 0x05, 0x05, 0x07, 0x06, 0x07, 0x04, 0x0C,
+	0x08, 0x09, 0x09, 0x0A, 0x09, 0x09, 0x0A, 0x0C, 0x10, 0x11, 0x11, 0x12, 0x20, 0x21, 0x40, 0x80,
+};
+
+static unsigned char ufs_fragtable_other[] = {
+	0x00, 0x16, 0x16, 0x2A, 0x16, 0x16, 0x26, 0x4E, 0x16, 0x16, 0x16, 0x3E, 0x2A, 0x3E, 0x4E, 0x8A,
+	0x16, 0x16, 0x16, 0x3E, 0x16, 0x16, 0x36, 0x5E, 0x16, 0x16, 0x16, 0x3E, 0x3E, 0x3E, 0x5E, 0x9E,
+	0x16, 0x16, 0x16, 0x3E, 0x16, 0x16, 0x36, 0x5E, 0x16, 0x16, 0x16, 0x3E, 0x3E, 0x3E, 0x5E, 0x9E,
+	0x2A, 0x3E, 0x3E, 0x2A, 0x3E, 0x3E, 0x2E, 0x6E, 0x3E, 0x3E, 0x3E, 0x3E, 0x2A, 0x3E, 0x6E, 0xAA,
+	0x16, 0x16, 0x16, 0x3E, 0x16, 0x16, 0x36, 0x5E, 0x16, 0x16, 0x16, 0x3E, 0x3E, 0x3E, 0x5E, 0x9E,
+	0x16, 0x16, 0x16, 0x3E, 0x16, 0x16, 0x36, 0x5E, 0x16, 0x16, 0x16, 0x3E, 0x3E, 0x3E, 0x5E, 0x9E,
+	0x26, 0x36, 0x36, 0x2E, 0x36, 0x36, 0x26, 0x6E, 0x36, 0x36, 0x36, 0x3E, 0x2E, 0x3E, 0x6E, 0xAE,
+	0x4E, 0x5E, 0x5E, 0x6E, 0x5E, 0x5E, 0x6E, 0x4E, 0x5E, 0x5E, 0x5E, 0x7E, 0x6E, 0x7E, 0x4E, 0xCE,
+	0x16, 0x16, 0x16, 0x3E, 0x16, 0x16, 0x36, 0x5E, 0x16, 0x16, 0x16, 0x3E, 0x3E, 0x3E, 0x5E, 0x9E,
+	0x16, 0x16, 0x16, 0x3E, 0x16, 0x16, 0x36, 0x5E, 0x16, 0x16, 0x16, 0x3E, 0x3E, 0x3E, 0x5E, 0x9E,
+	0x16, 0x16, 0x16, 0x3E, 0x16, 0x16, 0x36, 0x5E, 0x16, 0x16, 0x16, 0x3E, 0x3E, 0x3E, 0x5E, 0x9E,
+	0x3E, 0x3E, 0x3E, 0x3E, 0x3E, 0x3E, 0x3E, 0x7E, 0x3E, 0x3E, 0x3E, 0x3E, 0x3E, 0x3E, 0x7E, 0xBE,
+	0x2A, 0x3E, 0x3E, 0x2A, 0x3E, 0x3E, 0x2E, 0x6E, 0x3E, 0x3E, 0x3E, 0x3E, 0x2A, 0x3E, 0x6E, 0xAA,
+	0x3E, 0x3E, 0x3E, 0x3E, 0x3E, 0x3E, 0x3E, 0x7E,	0x3E, 0x3E, 0x3E, 0x3E, 0x3E, 0x3E, 0x7E, 0xBE,
+	0x4E, 0x5E, 0x5E, 0x6E, 0x5E, 0x5E, 0x6E, 0x4E, 0x5E, 0x5E, 0x5E, 0x7E, 0x6E, 0x7E, 0x4E, 0xCE,
+	0x8A, 0x9E, 0x9E, 0xAA, 0x9E, 0x9E, 0xAE, 0xCE, 0x9E, 0x9E, 0x9E, 0xBE, 0xAA, 0xBE, 0xCE, 0x8A,
+};
diff --git a/fs/ufs/cylinder.c b/fs/ufs/cylinder.c
new file mode 100644
index 00000000000000..97391b4d66c02b
--- /dev/null
+++ b/fs/ufs/cylinder.c
@@ -0,0 +1,207 @@
+/*
+ *  linux/fs/ufs/cylinder.c
+ *
+ * Copyright (C) 1998
+ * Daniel Pirkl <daniel.pirkl@email.cz>
+ * Charles University, Faculty of Mathematics and Physics
+ *
+ *  ext2 - inode (block) bitmap caching inspired
+ */
+
+#include <linux/fs.h>
+#include <linux/ufs_fs.h>
+#include <linux/sched.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <linux/locks.h>
+
+#include <asm/bitops.h>
+#include <asm/byteorder.h>
+
+#include "swab.h"
+#include "util.h"
+
+#undef UFS_CYLINDER_DEBUG
+
+#ifdef UFS_CYLINDER_DEBUG
+#define UFSD(x) printk("(%s, %d), %s:", __FILE__, __LINE__, __FUNCTION__); printk x;
+#else
+#define UFSD(x)
+#endif
+
+
+/*
+ * Read cylinder group into cache. The memory space for ufs_cg_private_info
+ * structure is already allocated during ufs_read_super.
+ */
+static void ufs_read_cylinder (struct super_block * sb,
+	unsigned cgno, unsigned bitmap_nr)
+{
+	struct ufs_sb_private_info * uspi;
+	struct ufs_cg_private_info * ucpi;
+	struct ufs_cylinder_group * ucg;
+	unsigned i, j;
+
+	UFSD(("ENTER, cgno %u, bitmap_nr %u\n", cgno, bitmap_nr))
+	uspi = sb->u.ufs_sb.s_uspi;
+	ucpi = sb->u.ufs_sb.s_ucpi[bitmap_nr];
+	ucg = (struct ufs_cylinder_group *)sb->u.ufs_sb.s_ucg[cgno]->b_data;
+
+	UCPI_UBH->fragment = ufs_cgcmin(cgno);
+	UCPI_UBH->count = uspi->s_cgsize >> sb->s_blocksize_bits;
+	/*
+	 * We have already the first fragment of cylinder group block in buffer
+	 */
+	UCPI_UBH->bh[0] = sb->u.ufs_sb.s_ucg[cgno];
+	for (i = 1; i < UCPI_UBH->count; i++)
+		if (!(UCPI_UBH->bh[i] = sb_bread(sb, UCPI_UBH->fragment + i)))
+			goto failed;
+	sb->u.ufs_sb.s_cgno[bitmap_nr] = cgno;
+			
+	ucpi->c_cgx	= fs32_to_cpu(sb, ucg->cg_cgx);
+	ucpi->c_ncyl	= fs16_to_cpu(sb, ucg->cg_ncyl);
+	ucpi->c_niblk	= fs16_to_cpu(sb, ucg->cg_niblk);
+	ucpi->c_ndblk	= fs32_to_cpu(sb, ucg->cg_ndblk);
+	ucpi->c_rotor	= fs32_to_cpu(sb, ucg->cg_rotor);
+	ucpi->c_frotor	= fs32_to_cpu(sb, ucg->cg_frotor);
+	ucpi->c_irotor	= fs32_to_cpu(sb, ucg->cg_irotor);
+	ucpi->c_btotoff	= fs32_to_cpu(sb, ucg->cg_btotoff);
+	ucpi->c_boff	= fs32_to_cpu(sb, ucg->cg_boff);
+	ucpi->c_iusedoff = fs32_to_cpu(sb, ucg->cg_iusedoff);
+	ucpi->c_freeoff	= fs32_to_cpu(sb, ucg->cg_freeoff);
+	ucpi->c_nextfreeoff = fs32_to_cpu(sb, ucg->cg_nextfreeoff);
+	ucpi->c_clustersumoff = fs32_to_cpu(sb, ucg->cg_u.cg_44.cg_clustersumoff);
+	ucpi->c_clusteroff = fs32_to_cpu(sb, ucg->cg_u.cg_44.cg_clusteroff);
+	ucpi->c_nclusterblks = fs32_to_cpu(sb, ucg->cg_u.cg_44.cg_nclusterblks);
+	UFSD(("EXIT\n"))
+	return;	
+	
+failed:
+	for (j = 1; j < i; j++)
+		brelse (sb->u.ufs_sb.s_ucg[j]);
+	sb->u.ufs_sb.s_cgno[bitmap_nr] = UFS_CGNO_EMPTY;
+	ufs_error (sb, "ufs_read_cylinder", "can't read cylinder group block %u", cgno);
+}
+
+/*
+ * Remove cylinder group from cache, doesn't release memory
+ * allocated for cylinder group (this is done at ufs_put_super only).
+ */
+void ufs_put_cylinder (struct super_block * sb, unsigned bitmap_nr)
+{
+	struct ufs_sb_private_info * uspi; 
+	struct ufs_cg_private_info * ucpi;
+	struct ufs_cylinder_group * ucg;
+	unsigned i;
+
+	UFSD(("ENTER, bitmap_nr %u\n", bitmap_nr))
+
+	uspi = sb->u.ufs_sb.s_uspi;
+	if (sb->u.ufs_sb.s_cgno[bitmap_nr] == UFS_CGNO_EMPTY) {
+		UFSD(("EXIT\n"))
+		return;
+	}
+	ucpi = sb->u.ufs_sb.s_ucpi[bitmap_nr];
+	ucg = ubh_get_ucg(UCPI_UBH);
+
+	if (uspi->s_ncg > UFS_MAX_GROUP_LOADED && bitmap_nr >= sb->u.ufs_sb.s_cg_loaded) {
+		ufs_panic (sb, "ufs_put_cylinder", "internal error");
+		return;
+	}
+	/*
+	 * rotor is not so important data, so we put it to disk 
+	 * at the end of working with cylinder
+	 */
+	ucg->cg_rotor = cpu_to_fs32(sb, ucpi->c_rotor);
+	ucg->cg_frotor = cpu_to_fs32(sb, ucpi->c_frotor);
+	ucg->cg_irotor = cpu_to_fs32(sb, ucpi->c_irotor);
+	ubh_mark_buffer_dirty (UCPI_UBH);
+	for (i = 1; i < UCPI_UBH->count; i++) {
+		brelse (UCPI_UBH->bh[i]);
+	}
+
+	sb->u.ufs_sb.s_cgno[bitmap_nr] = UFS_CGNO_EMPTY;
+	UFSD(("EXIT\n"))
+}
+
+/*
+ * Find cylinder group in cache and return it as pointer.
+ * If cylinder group is not in cache, we will load it from disk.
+ *
+ * The cache is managed by LRU algorithm. 
+ */
+struct ufs_cg_private_info * ufs_load_cylinder (
+	struct super_block * sb, unsigned cgno)
+{
+	struct ufs_sb_private_info * uspi;
+	struct ufs_cg_private_info * ucpi;
+	unsigned cg, i, j;
+
+	UFSD(("ENTER, cgno %u\n", cgno))
+
+	uspi = sb->u.ufs_sb.s_uspi;
+	if (cgno >= uspi->s_ncg) {
+		ufs_panic (sb, "ufs_load_cylinder", "internal error, high number of cg");
+		return NULL;
+	}
+	/*
+	 * Cylinder group number cg it in cache and it was last used
+	 */
+	if (sb->u.ufs_sb.s_cgno[0] == cgno) {
+		UFSD(("EXIT\n"))
+		return sb->u.ufs_sb.s_ucpi[0];
+	}
+	/*
+	 * Number of cylinder groups is not higher than UFS_MAX_GROUP_LOADED
+	 */
+	if (uspi->s_ncg <= UFS_MAX_GROUP_LOADED) {
+		if (sb->u.ufs_sb.s_cgno[cgno] != UFS_CGNO_EMPTY) {
+			if (sb->u.ufs_sb.s_cgno[cgno] != cgno) {
+				ufs_panic (sb, "ufs_load_cylinder", "internal error, wrong number of cg in cache");
+				UFSD(("EXIT (FAILED)\n"))
+				return NULL;
+			}
+			else {
+				UFSD(("EXIT\n"))
+				return sb->u.ufs_sb.s_ucpi[cgno];
+			}
+		} else {
+			ufs_read_cylinder (sb, cgno, cgno);
+			UFSD(("EXIT\n"))
+			return sb->u.ufs_sb.s_ucpi[cgno];
+		}
+	}
+	/*
+	 * Cylinder group number cg is in cache but it was not last used, 
+	 * we will move to the first position
+	 */
+	for (i = 0; i < sb->u.ufs_sb.s_cg_loaded && sb->u.ufs_sb.s_cgno[i] != cgno; i++);
+	if (i < sb->u.ufs_sb.s_cg_loaded && sb->u.ufs_sb.s_cgno[i] == cgno) {
+		cg = sb->u.ufs_sb.s_cgno[i];
+		ucpi = sb->u.ufs_sb.s_ucpi[i];
+		for (j = i; j > 0; j--) {
+			sb->u.ufs_sb.s_cgno[j] = sb->u.ufs_sb.s_cgno[j-1];
+			sb->u.ufs_sb.s_ucpi[j] = sb->u.ufs_sb.s_ucpi[j-1];
+		}
+		sb->u.ufs_sb.s_cgno[0] = cg;
+		sb->u.ufs_sb.s_ucpi[0] = ucpi;
+	/*
+	 * Cylinder group number cg is not in cache, we will read it from disk
+	 * and put it to the first position
+	 */
+	} else {
+		if (sb->u.ufs_sb.s_cg_loaded < UFS_MAX_GROUP_LOADED)
+			sb->u.ufs_sb.s_cg_loaded++;
+		else
+			ufs_put_cylinder (sb, UFS_MAX_GROUP_LOADED-1);
+		ucpi = sb->u.ufs_sb.s_ucpi[sb->u.ufs_sb.s_cg_loaded - 1];
+		for (j = sb->u.ufs_sb.s_cg_loaded - 1; j > 0; j--) {
+			sb->u.ufs_sb.s_cgno[j] = sb->u.ufs_sb.s_cgno[j-1];
+			sb->u.ufs_sb.s_ucpi[j] = sb->u.ufs_sb.s_ucpi[j-1];
+		}
+		sb->u.ufs_sb.s_ucpi[0] = ucpi;
+		ufs_read_cylinder (sb, cgno, 0);
+	}
+	UFSD(("EXIT\n"))
+	return sb->u.ufs_sb.s_ucpi[0];
+}
diff --git a/fs/ufs/dir.c b/fs/ufs/dir.c
new file mode 100644
index 00000000000000..3dca14b360e940
--- /dev/null
+++ b/fs/ufs/dir.c
@@ -0,0 +1,622 @@
+/*
+ *  linux/fs/ufs/ufs_dir.c
+ *
+ * Copyright (C) 1996
+ * Adrian Rodriguez (adrian@franklins-tower.rutgers.edu)
+ * Laboratory for Computer Science Research Computing Facility
+ * Rutgers, The State University of New Jersey
+ *
+ * swab support by Francois-Rene Rideau <fare@tunes.org> 19970406
+ *
+ * 4.4BSD (FreeBSD) support added on February 1st 1998 by
+ * Niels Kristian Bech Jensen <nkbj@image.dk> partially based
+ * on code by Martin von Loewis <martin@mira.isdn.cs.tu-berlin.de>.
+ */
+
+#include <linux/sched.h>
+#include <linux/locks.h>
+#include <linux/fs.h>
+#include <linux/ufs_fs.h>
+
+#include "swab.h"
+#include "util.h"
+
+#undef UFS_DIR_DEBUG
+
+#ifdef UFS_DIR_DEBUG
+#define UFSD(x) printk("(%s, %d), %s: ", __FILE__, __LINE__, __FUNCTION__); printk x;
+#else
+#define UFSD(x)
+#endif
+
+
+
+/*
+ * NOTE! unlike strncmp, ufs_match returns 1 for success, 0 for failure.
+ *
+ * len <= UFS_MAXNAMLEN and de != NULL are guaranteed by caller.
+ */
+static inline int ufs_match(struct super_block *sb, int len,
+		const char * const name, struct ufs_dir_entry * de)
+{
+	if (len != ufs_get_de_namlen(sb, de))
+		return 0;
+	if (!de->d_ino)
+		return 0;
+	return !memcmp(name, de->d_name, len);
+}
+
+/*
+ * This is blatantly stolen from ext2fs
+ */
+static int
+ufs_readdir (struct file * filp, void * dirent, filldir_t filldir)
+{
+	struct inode *inode = filp->f_dentry->d_inode;
+	int error = 0;
+	unsigned long offset, lblk, blk;
+	int i, stored;
+	struct buffer_head * bh;
+	struct ufs_dir_entry * de;
+	struct super_block * sb;
+	int de_reclen;
+	unsigned flags;
+
+	sb = inode->i_sb;
+	flags = sb->u.ufs_sb.s_flags;
+
+	UFSD(("ENTER, ino %lu  f_pos %lu\n", inode->i_ino, (unsigned long) filp->f_pos))
+
+	stored = 0;
+	bh = NULL;
+	offset = filp->f_pos & (sb->s_blocksize - 1);
+
+	while (!error && !stored && filp->f_pos < inode->i_size) {
+		lblk = (filp->f_pos) >> sb->s_blocksize_bits;
+		blk = ufs_frag_map(inode, lblk);
+		if (!blk || !(bh = sb_bread(sb, blk))) {
+			/* XXX - error - skip to the next block */
+			printk("ufs_readdir: "
+			       "dir inode %lu has a hole at offset %lu\n",
+			       inode->i_ino, (unsigned long int)filp->f_pos);
+			filp->f_pos += sb->s_blocksize - offset;
+			continue;
+		}
+
+revalidate:
+		/* If the dir block has changed since the last call to
+		 * readdir(2), then we might be pointing to an invalid
+		 * dirent right now.  Scan from the start of the block
+		 * to make sure. */
+		if (filp->f_version != inode->i_version) {
+			for (i = 0; i < sb->s_blocksize && i < offset; ) {
+				de = (struct ufs_dir_entry *)(bh->b_data + i);
+				/* It's too expensive to do a full
+				 * dirent test each time round this
+				 * loop, but we do have to test at
+				 * least that it is non-zero.  A
+				 * failure will be detected in the
+				 * dirent test below. */
+				de_reclen = fs16_to_cpu(sb, de->d_reclen);
+				if (de_reclen < 1)
+					break;
+				i += de_reclen;
+			}
+			offset = i;
+			filp->f_pos = (filp->f_pos & ~(sb->s_blocksize - 1))
+				| offset;
+			filp->f_version = inode->i_version;
+		}
+
+		while (!error && filp->f_pos < inode->i_size
+		       && offset < sb->s_blocksize) {
+			de = (struct ufs_dir_entry *) (bh->b_data + offset);
+			/* XXX - put in a real ufs_check_dir_entry() */
+			if ((de->d_reclen == 0) || (ufs_get_de_namlen(sb, de) == 0)) {
+				filp->f_pos = (filp->f_pos &
+				              (sb->s_blocksize - 1)) +
+				               sb->s_blocksize;
+				brelse(bh);
+				return stored;
+			}
+			if (!ufs_check_dir_entry ("ufs_readdir", inode, de,
+						   bh, offset)) {
+				/* On error, skip the f_pos to the
+				   next block. */
+				filp->f_pos = (filp->f_pos |
+				              (sb->s_blocksize - 1)) +
+					       1;
+				brelse (bh);
+				return stored;
+			}
+			offset += fs16_to_cpu(sb, de->d_reclen);
+			if (de->d_ino) {
+				/* We might block in the next section
+				 * if the data destination is
+				 * currently swapped out.  So, use a
+				 * version stamp to detect whether or
+				 * not the directory has been modified
+				 * during the copy operation. */
+				unsigned long version = filp->f_version;
+				unsigned char d_type = DT_UNKNOWN;
+
+				UFSD(("filldir(%s,%u)\n", de->d_name,
+							fs32_to_cpu(sb, de->d_ino)))
+				UFSD(("namlen %u\n", ufs_get_de_namlen(sb, de)))
+
+				if ((flags & UFS_DE_MASK) == UFS_DE_44BSD)
+					d_type = de->d_u.d_44.d_type;
+				error = filldir(dirent, de->d_name,
+						ufs_get_de_namlen(sb, de), filp->f_pos,
+						fs32_to_cpu(sb, de->d_ino), d_type);
+				if (error)
+					break;
+				if (version != filp->f_version)
+					goto revalidate;
+				stored ++;
+			}
+			filp->f_pos += fs16_to_cpu(sb, de->d_reclen);
+		}
+		offset = 0;
+		brelse (bh);
+	}
+	UPDATE_ATIME(inode);
+	return 0;
+}
+
+/*
+ * define how far ahead to read directories while searching them.
+ */
+#define NAMEI_RA_CHUNKS  2
+#define NAMEI_RA_BLOCKS  4
+#define NAMEI_RA_SIZE        (NAMEI_RA_CHUNKS * NAMEI_RA_BLOCKS)
+#define NAMEI_RA_INDEX(c,b)  (((c) * NAMEI_RA_BLOCKS) + (b))
+
+/*
+ *	ufs_find_entry()
+ *
+ * finds an entry in the specified directory with the wanted name. It
+ * returns the cache buffer in which the entry was found, and the entry
+ * itself (as a parameter - res_bh). It does NOT read the inode of the
+ * entry - you'll have to do that yourself if you want to.
+ */
+struct ufs_dir_entry * ufs_find_entry (struct dentry *dentry,
+	struct buffer_head ** res_bh)
+{
+	struct super_block * sb;
+	struct buffer_head * bh_use[NAMEI_RA_SIZE];
+	struct buffer_head * bh_read[NAMEI_RA_SIZE];
+	unsigned long offset;
+	int block, toread, i, err;
+	struct inode *dir = dentry->d_parent->d_inode;
+	const char *name = dentry->d_name.name;
+	int namelen = dentry->d_name.len;
+
+	UFSD(("ENTER, dir_ino %lu, name %s, namlen %u\n", dir->i_ino, name, namelen))
+	
+	*res_bh = NULL;
+	
+	sb = dir->i_sb;
+	
+	if (namelen > UFS_MAXNAMLEN)
+		return NULL;
+
+	memset (bh_use, 0, sizeof (bh_use));
+	toread = 0;
+	for (block = 0; block < NAMEI_RA_SIZE; ++block) {
+		struct buffer_head * bh;
+
+		if ((block << sb->s_blocksize_bits) >= dir->i_size)
+			break;
+		bh = ufs_getfrag (dir, block, 0, &err);
+		bh_use[block] = bh;
+		if (bh && !buffer_uptodate(bh))
+			bh_read[toread++] = bh;
+	}
+
+	for (block = 0, offset = 0; offset < dir->i_size; block++) {
+		struct buffer_head * bh;
+		struct ufs_dir_entry * de;
+		char * dlimit;
+
+		if ((block % NAMEI_RA_BLOCKS) == 0 && toread) {
+			ll_rw_block (READ, toread, bh_read);
+			toread = 0;
+		}
+		bh = bh_use[block % NAMEI_RA_SIZE];
+		if (!bh) {
+			ufs_error (sb, "ufs_find_entry", 
+				"directory #%lu contains a hole at offset %lu",
+				dir->i_ino, offset);
+			offset += sb->s_blocksize;
+			continue;
+		}
+		wait_on_buffer (bh);
+		if (!buffer_uptodate(bh)) {
+			/*
+			 * read error: all bets are off
+			 */
+			break;
+		}
+
+		de = (struct ufs_dir_entry *) bh->b_data;
+		dlimit = bh->b_data + sb->s_blocksize;
+		while ((char *) de < dlimit && offset < dir->i_size) {
+			/* this code is executed quadratically often */
+			/* do minimal checking by hand */
+			int de_len;
+
+			if ((char *) de + namelen <= dlimit &&
+			    ufs_match(sb, namelen, name, de)) {
+				/* found a match -
+				just to be sure, do a full check */
+				if (!ufs_check_dir_entry("ufs_find_entry",
+				    dir, de, bh, offset))
+					goto failed;
+				for (i = 0; i < NAMEI_RA_SIZE; ++i) {
+					if (bh_use[i] != bh)
+						brelse (bh_use[i]);
+				}
+				*res_bh = bh;
+				return de;
+			}
+                        /* prevent looping on a bad block */
+			de_len = fs16_to_cpu(sb, de->d_reclen);
+			if (de_len <= 0)
+				goto failed;
+			offset += de_len;
+			de = (struct ufs_dir_entry *) ((char *) de + de_len);
+		}
+
+		brelse (bh);
+		if (((block + NAMEI_RA_SIZE) << sb->s_blocksize_bits ) >=
+		    dir->i_size)
+			bh = NULL;
+		else
+			bh = ufs_getfrag (dir, block + NAMEI_RA_SIZE, 0, &err);
+		bh_use[block % NAMEI_RA_SIZE] = bh;
+		if (bh && !buffer_uptodate(bh))
+			bh_read[toread++] = bh;
+	}
+
+failed:
+	for (i = 0; i < NAMEI_RA_SIZE; ++i) brelse (bh_use[i]);
+	UFSD(("EXIT\n"))
+	return NULL;
+}
+
+int ufs_check_dir_entry (const char * function,	struct inode * dir,
+	struct ufs_dir_entry * de, struct buffer_head * bh, 
+	unsigned long offset)
+{
+	struct super_block *sb = dir->i_sb;
+	const char *error_msg = NULL;
+	int rlen = fs16_to_cpu(sb, de->d_reclen);
+
+	if (rlen < UFS_DIR_REC_LEN(1))
+		error_msg = "reclen is smaller than minimal";
+	else if (rlen % 4 != 0)
+		error_msg = "reclen % 4 != 0";
+	else if (rlen < UFS_DIR_REC_LEN(ufs_get_de_namlen(sb, de)))
+		error_msg = "reclen is too small for namlen";
+	else if (((char *) de - bh->b_data) + rlen > dir->i_sb->s_blocksize)
+		error_msg = "directory entry across blocks";
+	else if (fs32_to_cpu(sb, de->d_ino) > (sb->u.ufs_sb.s_uspi->s_ipg *
+				      sb->u.ufs_sb.s_uspi->s_ncg))
+		error_msg = "inode out of bounds";
+
+	if (error_msg != NULL)
+		ufs_error (sb, function, "bad entry in directory #%lu, size %Lu: %s - "
+			    "offset=%lu, inode=%lu, reclen=%d, namlen=%d",
+			    dir->i_ino, dir->i_size, error_msg, offset,
+			    (unsigned long)fs32_to_cpu(sb, de->d_ino),
+			    rlen, ufs_get_de_namlen(sb, de));
+	
+	return (error_msg == NULL ? 1 : 0);
+}
+
+struct ufs_dir_entry *ufs_dotdot(struct inode *dir, struct buffer_head **p)
+{
+	int err;
+	struct buffer_head *bh = ufs_bread (dir, 0, 0, &err);
+	struct ufs_dir_entry *res = NULL;
+
+	if (bh) {
+		res = (struct ufs_dir_entry *) bh->b_data;
+		res = (struct ufs_dir_entry *)((char *)res +
+			fs16_to_cpu(dir->i_sb, res->d_reclen));
+	}
+	*p = bh;
+	return res;
+}
+ino_t ufs_inode_by_name(struct inode * dir, struct dentry *dentry)
+{
+	ino_t res = 0;
+	struct ufs_dir_entry * de;
+	struct buffer_head *bh;
+
+	de = ufs_find_entry (dentry, &bh);
+	if (de) {
+		res = fs32_to_cpu(dir->i_sb, de->d_ino);
+		brelse(bh);
+	}
+	return res;
+}
+
+void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de,
+		struct buffer_head *bh, struct inode *inode)
+{
+	dir->i_version = ++event;
+	de->d_ino = cpu_to_fs32(dir->i_sb, inode->i_ino);
+	mark_buffer_dirty(bh);
+	if (IS_SYNC(dir)) {
+		ll_rw_block (WRITE, 1, &bh);
+		wait_on_buffer(bh);
+	}
+	brelse (bh);
+}
+
+/*
+ *	ufs_add_entry()
+ *
+ * adds a file entry to the specified directory, using the same
+ * semantics as ufs_find_entry(). It returns NULL if it failed.
+ */
+int ufs_add_link(struct dentry *dentry, struct inode *inode)
+{
+	struct super_block * sb;
+	struct ufs_sb_private_info * uspi;
+	unsigned long offset;
+	unsigned fragoff;
+	unsigned short rec_len;
+	struct buffer_head * bh;
+	struct ufs_dir_entry * de, * de1;
+	struct inode *dir = dentry->d_parent->d_inode;
+	const char *name = dentry->d_name.name;
+	int namelen = dentry->d_name.len;
+	int err;
+
+	UFSD(("ENTER, name %s, namelen %u\n", name, namelen))
+	
+	sb = dir->i_sb;
+	uspi = sb->u.ufs_sb.s_uspi;
+
+	if (!namelen)
+		return -EINVAL;
+	bh = ufs_bread (dir, 0, 0, &err);
+	if (!bh)
+		return err;
+	rec_len = UFS_DIR_REC_LEN(namelen);
+	offset = 0;
+	de = (struct ufs_dir_entry *) bh->b_data;
+	while (1) {
+		if ((char *)de >= UFS_SECTOR_SIZE + bh->b_data) {
+			fragoff = offset & ~uspi->s_fmask;
+			if (fragoff != 0 && fragoff != UFS_SECTOR_SIZE)
+				ufs_error (sb, "ufs_add_entry", "internal error"
+					" fragoff %u", fragoff);
+			if (!fragoff) {
+				brelse (bh);
+				bh = ufs_bread (dir, offset >> sb->s_blocksize_bits, 1, &err);
+				if (!bh)
+					return err;
+			}
+			if (dir->i_size <= offset) {
+				if (dir->i_size == 0) {
+					brelse(bh);
+					return -ENOENT;
+				}
+				de = (struct ufs_dir_entry *) (bh->b_data + fragoff);
+				de->d_ino = 0;
+				de->d_reclen = cpu_to_fs16(sb, UFS_SECTOR_SIZE);
+				ufs_set_de_namlen(sb, de, 0);
+				dir->i_size = offset + UFS_SECTOR_SIZE;
+				mark_inode_dirty(dir);
+			} else {
+				de = (struct ufs_dir_entry *) bh->b_data;
+			}
+		}
+		if (!ufs_check_dir_entry ("ufs_add_entry", dir, de, bh, offset)) {
+			brelse (bh);
+			return -ENOENT;
+		}
+		if (ufs_match(sb, namelen, name, de)) {
+			brelse (bh);
+			return -EEXIST;
+		}
+		if (de->d_ino == 0 && fs16_to_cpu(sb, de->d_reclen) >= rec_len)
+			break;
+			
+		if (fs16_to_cpu(sb, de->d_reclen) >=
+		     UFS_DIR_REC_LEN(ufs_get_de_namlen(sb, de)) + rec_len)
+			break;
+		offset += fs16_to_cpu(sb, de->d_reclen);
+		de = (struct ufs_dir_entry *) ((char *) de + fs16_to_cpu(sb, de->d_reclen));
+	}
+
+	if (de->d_ino) {
+		de1 = (struct ufs_dir_entry *) ((char *) de +
+			UFS_DIR_REC_LEN(ufs_get_de_namlen(sb, de)));
+		de1->d_reclen =
+			cpu_to_fs16(sb, fs16_to_cpu(sb, de->d_reclen) -
+				UFS_DIR_REC_LEN(ufs_get_de_namlen(sb, de)));
+		de->d_reclen =
+			cpu_to_fs16(sb, UFS_DIR_REC_LEN(ufs_get_de_namlen(sb, de)));
+		de = de1;
+	}
+	de->d_ino = 0;
+	ufs_set_de_namlen(sb, de, namelen);
+	memcpy (de->d_name, name, namelen + 1);
+	de->d_ino = cpu_to_fs32(sb, inode->i_ino);
+	ufs_set_de_type(sb, de, inode->i_mode);
+	mark_buffer_dirty(bh);
+	if (IS_SYNC(dir)) {
+		ll_rw_block (WRITE, 1, &bh);
+		wait_on_buffer (bh);
+	}
+	brelse (bh);
+	dir->i_mtime = dir->i_ctime = CURRENT_TIME;
+	dir->i_version = ++event;
+	mark_inode_dirty(dir);
+
+	UFSD(("EXIT\n"))
+	return 0;
+}
+
+/*
+ * ufs_delete_entry deletes a directory entry by merging it with the
+ * previous entry.
+ */
+int ufs_delete_entry (struct inode * inode, struct ufs_dir_entry * dir,
+	struct buffer_head * bh )
+	
+{
+	struct super_block * sb;
+	struct ufs_dir_entry * de, * pde;
+	unsigned i;
+	
+	UFSD(("ENTER\n"))
+
+	sb = inode->i_sb;
+	i = 0;
+	pde = NULL;
+	de = (struct ufs_dir_entry *) bh->b_data;
+	
+	UFSD(("ino %u, reclen %u, namlen %u, name %s\n",
+		fs32_to_cpu(sb, de->d_ino),
+		fs16to_cpu(sb, de->d_reclen),
+		ufs_get_de_namlen(sb, de), de->d_name))
+
+	while (i < bh->b_size) {
+		if (!ufs_check_dir_entry ("ufs_delete_entry", inode, de, bh, i)) {
+			brelse(bh);
+			return -EIO;
+		}
+		if (de == dir)  {
+			if (pde)
+				fs16_add(sb, &pde->d_reclen,
+					fs16_to_cpu(sb, dir->d_reclen));
+			dir->d_ino = 0;
+			inode->i_version = ++event;
+			inode->i_ctime = inode->i_mtime = CURRENT_TIME;
+			mark_inode_dirty(inode);
+			mark_buffer_dirty(bh);
+			if (IS_SYNC(inode)) {
+				ll_rw_block(WRITE, 1, &bh);
+				wait_on_buffer(bh);
+			}
+			brelse(bh);
+			UFSD(("EXIT\n"))
+			return 0;
+		}
+		i += fs16_to_cpu(sb, de->d_reclen);
+		if (i == UFS_SECTOR_SIZE) pde = NULL;
+		else pde = de;
+		de = (struct ufs_dir_entry *)
+		    ((char *) de + fs16_to_cpu(sb, de->d_reclen));
+		if (i == UFS_SECTOR_SIZE && de->d_reclen == 0)
+			break;
+	}
+	UFSD(("EXIT\n"))
+	brelse(bh);
+	return -ENOENT;
+}
+
+int ufs_make_empty(struct inode * inode, struct inode *dir)
+{
+	struct super_block * sb = dir->i_sb;
+	struct buffer_head * dir_block;
+	struct ufs_dir_entry * de;
+	int err;
+
+	dir_block = ufs_bread (inode, 0, 1, &err);
+	if (!dir_block)
+		return err;
+
+	inode->i_blocks = sb->s_blocksize / UFS_SECTOR_SIZE;
+	de = (struct ufs_dir_entry *) dir_block->b_data;
+	de->d_ino = cpu_to_fs32(sb, inode->i_ino);
+	ufs_set_de_type(sb, de, inode->i_mode);
+	ufs_set_de_namlen(sb, de, 1);
+	de->d_reclen = cpu_to_fs16(sb, UFS_DIR_REC_LEN(1));
+	strcpy (de->d_name, ".");
+	de = (struct ufs_dir_entry *)
+		((char *)de + fs16_to_cpu(sb, de->d_reclen));
+	de->d_ino = cpu_to_fs32(sb, dir->i_ino);
+	ufs_set_de_type(sb, de, dir->i_mode);
+	de->d_reclen = cpu_to_fs16(sb, UFS_SECTOR_SIZE - UFS_DIR_REC_LEN(1));
+	ufs_set_de_namlen(sb, de, 2);
+	strcpy (de->d_name, "..");
+	mark_buffer_dirty(dir_block);
+	brelse (dir_block);
+	mark_inode_dirty(inode);
+	return 0;
+}
+
+/*
+ * routine to check that the specified directory is empty (for rmdir)
+ */
+int ufs_empty_dir (struct inode * inode)
+{
+	struct super_block * sb;
+	unsigned long offset;
+	struct buffer_head * bh;
+	struct ufs_dir_entry * de, * de1;
+	int err;
+	
+	sb = inode->i_sb;
+
+	if (inode->i_size < UFS_DIR_REC_LEN(1) + UFS_DIR_REC_LEN(2) ||
+	    !(bh = ufs_bread (inode, 0, 0, &err))) {
+	    	ufs_warning (inode->i_sb, "empty_dir",
+			      "bad directory (dir #%lu) - no data block",
+			      inode->i_ino);
+		return 1;
+	}
+	de = (struct ufs_dir_entry *) bh->b_data;
+	de1 = (struct ufs_dir_entry *)
+		((char *)de + fs16_to_cpu(sb, de->d_reclen));
+	if (fs32_to_cpu(sb, de->d_ino) != inode->i_ino || de1->d_ino == 0 ||
+	     strcmp (".", de->d_name) || strcmp ("..", de1->d_name)) {
+	    	ufs_warning (inode->i_sb, "empty_dir",
+			      "bad directory (dir #%lu) - no `.' or `..'",
+			      inode->i_ino);
+		return 1;
+	}
+	offset = fs16_to_cpu(sb, de->d_reclen) + fs16_to_cpu(sb, de1->d_reclen);
+	de = (struct ufs_dir_entry *)
+		((char *)de1 + fs16_to_cpu(sb, de1->d_reclen));
+	while (offset < inode->i_size ) {
+		if (!bh || (void *) de >= (void *) (bh->b_data + sb->s_blocksize)) {
+			brelse (bh);
+			bh = ufs_bread (inode, offset >> sb->s_blocksize_bits, 1, &err);
+	 		if (!bh) {
+				ufs_error (sb, "empty_dir",
+					    "directory #%lu contains a hole at offset %lu",
+					    inode->i_ino, offset);
+				offset += sb->s_blocksize;
+				continue;
+			}
+			de = (struct ufs_dir_entry *) bh->b_data;
+		}
+		if (!ufs_check_dir_entry ("empty_dir", inode, de, bh, offset)) {
+			brelse (bh);
+			return 1;
+		}
+		if (de->d_ino) {
+			brelse (bh);
+			return 0;
+		}
+		offset += fs16_to_cpu(sb, de->d_reclen);
+		de = (struct ufs_dir_entry *)
+			((char *)de + fs16_to_cpu(sb, de->d_reclen));
+	}
+	brelse (bh);
+	return 1;
+}
+
+struct file_operations ufs_dir_operations = {
+	read:		generic_read_dir,
+	readdir:	ufs_readdir,
+	fsync:		file_fsync,
+};
diff --git a/fs/ufs/file.c b/fs/ufs/file.c
new file mode 100644
index 00000000000000..2560b59ddbb315
--- /dev/null
+++ b/fs/ufs/file.c
@@ -0,0 +1,54 @@
+/*
+ *  linux/fs/ufs/file.c
+ *
+ * Copyright (C) 1998
+ * Daniel Pirkl <daniel.pirkl@email.cz>
+ * Charles University, Faculty of Mathematics and Physics
+ *
+ *  from
+ *
+ *  linux/fs/ext2/file.c
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ *  from
+ *
+ *  linux/fs/minix/file.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  ext2 fs regular file handling primitives
+ */
+
+#include <asm/uaccess.h>
+#include <asm/system.h>
+
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/ufs_fs.h>
+#include <linux/fcntl.h>
+#include <linux/sched.h>
+#include <linux/stat.h>
+#include <linux/locks.h>
+#include <linux/mm.h>
+#include <linux/pagemap.h>
+
+/*
+ * We have mostly NULL's here: the current defaults are ok for
+ * the ufs filesystem.
+ */
+ 
+struct file_operations ufs_file_operations = {
+	llseek:		generic_file_llseek,
+	read:		generic_file_read,
+	write:		generic_file_write,
+	mmap:		generic_file_mmap,
+	open:           generic_file_open,
+};
+
+struct inode_operations ufs_file_inode_operations = {
+	truncate:	ufs_truncate,
+};
diff --git a/fs/ufs/ialloc.c b/fs/ufs/ialloc.c
new file mode 100644
index 00000000000000..25f22378bba93a
--- /dev/null
+++ b/fs/ufs/ialloc.c
@@ -0,0 +1,290 @@
+/*
+ *  linux/fs/ufs/ialloc.c
+ *
+ * Copyright (c) 1998
+ * Daniel Pirkl <daniel.pirkl@email.cz>
+ * Charles University, Faculty of Mathematics and Physics
+ *
+ *  from
+ *
+ *  linux/fs/ext2/ialloc.c
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ *  BSD ufs-inspired inode and directory allocation by 
+ *  Stephen Tweedie (sct@dcs.ed.ac.uk), 1993
+ *  Big-endian to little-endian byte-swapping/bitmaps by
+ *        David S. Miller (davem@caip.rutgers.edu), 1995
+ */
+
+#include <linux/fs.h>
+#include <linux/ufs_fs.h>
+#include <linux/sched.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <linux/locks.h>
+#include <linux/quotaops.h>
+#include <asm/bitops.h>
+#include <asm/byteorder.h>
+
+#include "swab.h"
+#include "util.h"
+
+#undef UFS_IALLOC_DEBUG
+
+#ifdef UFS_IALLOC_DEBUG
+#define UFSD(x) printk("(%s, %d), %s: ", __FILE__, __LINE__, __FUNCTION__); printk x;
+#else
+#define UFSD(x)
+#endif
+
+/*
+ * NOTE! When we get the inode, we're the only people
+ * that have access to it, and as such there are no
+ * race conditions we have to worry about. The inode
+ * is not on the hash-lists, and it cannot be reached
+ * through the filesystem because the directory entry
+ * has been deleted earlier.
+ *
+ * HOWEVER: we must make sure that we get no aliases,
+ * which means that we have to call "clear_inode()"
+ * _before_ we mark the inode not in use in the inode
+ * bitmaps. Otherwise a newly created file might use
+ * the same inode number (not actually the same pointer
+ * though), and then we'd have two inodes sharing the
+ * same inode number and space on the harddisk.
+ */
+void ufs_free_inode (struct inode * inode)
+{
+	struct super_block * sb;
+	struct ufs_sb_private_info * uspi;
+	struct ufs_super_block_first * usb1;
+	struct ufs_cg_private_info * ucpi;
+	struct ufs_cylinder_group * ucg;
+	int is_directory;
+	unsigned ino, cg, bit;
+	
+	UFSD(("ENTER, ino %lu\n", inode->i_ino))
+
+	sb = inode->i_sb;
+	uspi = sb->u.ufs_sb.s_uspi;
+	usb1 = ubh_get_usb_first(USPI_UBH);
+	
+	ino = inode->i_ino;
+
+	lock_super (sb);
+
+	if (!((ino > 1) && (ino < (uspi->s_ncg * uspi->s_ipg )))) {
+		ufs_warning(sb, "ufs_free_inode", "reserved inode or nonexistent inode %u\n", ino);
+		unlock_super (sb);
+		return;
+	}
+	
+	cg = ufs_inotocg (ino);
+	bit = ufs_inotocgoff (ino);
+	ucpi = ufs_load_cylinder (sb, cg);
+	if (!ucpi) {
+		unlock_super (sb);
+		return;
+	}
+	ucg = ubh_get_ucg(UCPI_UBH);
+	if (!ufs_cg_chkmagic(sb, ucg))
+		ufs_panic (sb, "ufs_free_fragments", "internal error, bad cg magic number");
+
+	ucg->cg_time = cpu_to_fs32(sb, CURRENT_TIME);
+
+	is_directory = S_ISDIR(inode->i_mode);
+
+	DQUOT_FREE_INODE(inode);
+	DQUOT_DROP(inode);
+
+	clear_inode (inode);
+
+	if (ubh_isclr (UCPI_UBH, ucpi->c_iusedoff, bit))
+		ufs_error(sb, "ufs_free_inode", "bit already cleared for inode %u", ino);
+	else {
+		ubh_clrbit (UCPI_UBH, ucpi->c_iusedoff, bit);
+		if (ino < ucpi->c_irotor)
+			ucpi->c_irotor = ino;
+		fs32_add(sb, &ucg->cg_cs.cs_nifree, 1);
+		fs32_add(sb, &usb1->fs_cstotal.cs_nifree, 1);
+		fs32_add(sb, &sb->fs_cs(cg).cs_nifree, 1);
+
+		if (is_directory) {
+			fs32_sub(sb, &ucg->cg_cs.cs_ndir, 1);
+			fs32_sub(sb, &usb1->fs_cstotal.cs_ndir, 1);
+			fs32_sub(sb, &sb->fs_cs(cg).cs_ndir, 1);
+		}
+	}
+
+	ubh_mark_buffer_dirty (USPI_UBH);
+	ubh_mark_buffer_dirty (UCPI_UBH);
+	if (sb->s_flags & MS_SYNCHRONOUS) {
+		ubh_ll_rw_block (WRITE, 1, (struct ufs_buffer_head **) &ucpi);
+		ubh_wait_on_buffer (UCPI_UBH);
+	}
+	
+	sb->s_dirt = 1;
+	unlock_super (sb);
+	UFSD(("EXIT\n"))
+}
+
+/*
+ * There are two policies for allocating an inode.  If the new inode is
+ * a directory, then a forward search is made for a block group with both
+ * free space and a low directory-to-inode ratio; if that fails, then of
+ * the groups with above-average free space, that group with the fewest
+ * directories already is chosen.
+ *
+ * For other inodes, search forward from the parent directory's block
+ * group to find a free inode.
+ */
+struct inode * ufs_new_inode (const struct inode * dir,	int mode)
+{
+	struct super_block * sb;
+	struct ufs_sb_private_info * uspi;
+	struct ufs_super_block_first * usb1;
+	struct ufs_cg_private_info * ucpi;
+	struct ufs_cylinder_group * ucg;
+	struct inode * inode;
+	unsigned cg, bit, i, j, start;
+
+	UFSD(("ENTER\n"))
+	
+	/* Cannot create files in a deleted directory */
+	if (!dir || !dir->i_nlink)
+		return ERR_PTR(-EPERM);
+	sb = dir->i_sb;
+	inode = new_inode(sb);
+	if (!inode)
+		return ERR_PTR(-ENOMEM);
+	uspi = sb->u.ufs_sb.s_uspi;
+	usb1 = ubh_get_usb_first(USPI_UBH);
+
+	lock_super (sb);
+
+	/*
+	 * Try to place the inode in its parent directory
+	 */
+	i = ufs_inotocg(dir->i_ino);
+	if (sb->fs_cs(i).cs_nifree) {
+		cg = i;
+		goto cg_found;
+	}
+
+	/*
+	 * Use a quadratic hash to find a group with a free inode
+	 */
+	for ( j = 1; j < uspi->s_ncg; j <<= 1 ) {
+		i += j;
+		if (i >= uspi->s_ncg)
+			i -= uspi->s_ncg;
+		if (sb->fs_cs(i).cs_nifree) {
+			cg = i;
+			goto cg_found;
+		}
+	}
+
+	/*
+	 * That failed: try linear search for a free inode
+	 */
+	i = ufs_inotocg(dir->i_ino) + 1;
+	for (j = 2; j < uspi->s_ncg; j++) {
+		i++;
+		if (i >= uspi->s_ncg)
+			i = 0;
+		if (sb->fs_cs(i).cs_nifree) {
+			cg = i;
+			goto cg_found;
+		}
+	}
+	
+	goto failed;
+
+cg_found:
+	ucpi = ufs_load_cylinder (sb, cg);
+	if (!ucpi)
+		goto failed;
+	ucg = ubh_get_ucg(UCPI_UBH);
+	if (!ufs_cg_chkmagic(sb, ucg)) 
+		ufs_panic (sb, "ufs_new_inode", "internal error, bad cg magic number");
+
+	start = ucpi->c_irotor;
+	bit = ubh_find_next_zero_bit (UCPI_UBH, ucpi->c_iusedoff, uspi->s_ipg, start);
+	if (!(bit < uspi->s_ipg)) {
+		bit = ubh_find_first_zero_bit (UCPI_UBH, ucpi->c_iusedoff, start);
+		if (!(bit < start)) {
+			ufs_error (sb, "ufs_new_inode",
+			    "cylinder group %u corrupted - error in inode bitmap\n", cg);
+			goto failed;
+		}
+	}
+	UFSD(("start = %u, bit = %u, ipg = %u\n", start, bit, uspi->s_ipg))
+	if (ubh_isclr (UCPI_UBH, ucpi->c_iusedoff, bit))
+		ubh_setbit (UCPI_UBH, ucpi->c_iusedoff, bit);
+	else {
+		ufs_panic (sb, "ufs_new_inode", "internal error");
+		goto failed;
+	}
+	
+	fs32_sub(sb, &ucg->cg_cs.cs_nifree, 1);
+	fs32_sub(sb, &usb1->fs_cstotal.cs_nifree, 1);
+	fs32_sub(sb, &sb->fs_cs(cg).cs_nifree, 1);
+	
+	if (S_ISDIR(mode)) {
+		fs32_add(sb, &ucg->cg_cs.cs_ndir, 1);
+		fs32_add(sb, &usb1->fs_cstotal.cs_ndir, 1);
+		fs32_add(sb, &sb->fs_cs(cg).cs_ndir, 1);
+	}
+
+	ubh_mark_buffer_dirty (USPI_UBH);
+	ubh_mark_buffer_dirty (UCPI_UBH);
+	if (sb->s_flags & MS_SYNCHRONOUS) {
+		ubh_ll_rw_block (WRITE, 1, (struct ufs_buffer_head **) &ucpi);
+		ubh_wait_on_buffer (UCPI_UBH);
+	}
+	sb->s_dirt = 1;
+
+	inode->i_mode = mode;
+	inode->i_uid = current->fsuid;
+	if (dir->i_mode & S_ISGID) {
+		inode->i_gid = dir->i_gid;
+		if (S_ISDIR(mode))
+			inode->i_mode |= S_ISGID;
+	} else
+		inode->i_gid = current->fsgid;
+
+	inode->i_ino = cg * uspi->s_ipg + bit;
+	inode->i_blksize = PAGE_SIZE;	/* This is the optimal IO size (for stat), not the fs block size */
+	inode->i_blocks = 0;
+	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+	inode->u.ufs_i.i_flags = dir->u.ufs_i.i_flags;
+	inode->u.ufs_i.i_lastfrag = 0;
+
+	insert_inode_hash(inode);
+	mark_inode_dirty(inode);
+
+	unlock_super (sb);
+
+	if (DQUOT_ALLOC_INODE(inode)) {
+		DQUOT_DROP(inode);
+		inode->i_flags |= S_NOQUOTA;
+		inode->i_nlink = 0;
+		iput(inode);
+		return ERR_PTR(-EDQUOT);
+	}
+
+	UFSD(("allocating inode %lu\n", inode->i_ino))
+	UFSD(("EXIT\n"))
+	return inode;
+
+failed:
+	unlock_super (sb);
+	make_bad_inode(inode);
+	iput (inode);
+	UFSD(("EXIT (FAILED)\n"))
+	return ERR_PTR(-ENOSPC);
+}
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c
new file mode 100644
index 00000000000000..bcfff57dd119e7
--- /dev/null
+++ b/fs/ufs/inode.c
@@ -0,0 +1,673 @@
+/*
+ *  linux/fs/ufs/inode.c
+ *
+ * Copyright (C) 1998
+ * Daniel Pirkl <daniel.pirkl@email.cz>
+ * Charles University, Faculty of Mathematics and Physics
+ *
+ *  from
+ *
+ *  linux/fs/ext2/inode.c
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ *  from
+ *
+ *  linux/fs/minix/inode.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  Goal-directed block allocation by Stephen Tweedie (sct@dcs.ed.ac.uk), 1993
+ *  Big-endian to little-endian byte-swapping/bitmaps by
+ *        David S. Miller (davem@caip.rutgers.edu), 1995
+ */
+
+#include <asm/uaccess.h>
+#include <asm/system.h>
+
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/ufs_fs.h>
+#include <linux/sched.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <linux/locks.h>
+#include <linux/mm.h>
+#include <linux/smp_lock.h>
+
+#include "swab.h"
+#include "util.h"
+
+#undef UFS_INODE_DEBUG
+#undef UFS_INODE_DEBUG_MORE
+
+#ifdef UFS_INODE_DEBUG
+#define UFSD(x) printk("(%s, %d), %s: ", __FILE__, __LINE__, __FUNCTION__); printk x;
+#else
+#define UFSD(x)
+#endif
+
+static int ufs_block_to_path(struct inode *inode, long i_block, int offsets[4])
+{
+	struct ufs_sb_private_info *uspi = inode->i_sb->u.ufs_sb.s_uspi;
+	int ptrs = uspi->s_apb;
+	int ptrs_bits = uspi->s_apbshift;
+	const long direct_blocks = UFS_NDADDR,
+		indirect_blocks = ptrs,
+		double_blocks = (1 << (ptrs_bits * 2));
+	int n = 0;
+
+	if (i_block < 0) {
+		ufs_warning(inode->i_sb, "ufs_block_to_path", "block < 0");
+	} else if (i_block < direct_blocks) {
+		offsets[n++] = i_block;
+	} else if ((i_block -= direct_blocks) < indirect_blocks) {
+		offsets[n++] = UFS_IND_BLOCK;
+		offsets[n++] = i_block;
+	} else if ((i_block -= indirect_blocks) < double_blocks) {
+		offsets[n++] = UFS_DIND_BLOCK;
+		offsets[n++] = i_block >> ptrs_bits;
+		offsets[n++] = i_block & (ptrs - 1);
+	} else if (((i_block -= double_blocks) >> (ptrs_bits * 2)) < ptrs) {
+		offsets[n++] = UFS_TIND_BLOCK;
+		offsets[n++] = i_block >> (ptrs_bits * 2);
+		offsets[n++] = (i_block >> ptrs_bits) & (ptrs - 1);
+		offsets[n++] = i_block & (ptrs - 1);
+	} else {
+		ufs_warning(inode->i_sb, "ufs_block_to_path", "block > big");
+	}
+	return n;
+}
+
+int ufs_frag_map(struct inode *inode, int frag)
+{
+	struct super_block *sb = inode->i_sb;
+	struct ufs_sb_private_info *uspi = sb->u.ufs_sb.s_uspi;
+	int mask = uspi->s_apbmask>>uspi->s_fpbshift;
+	int shift = uspi->s_apbshift-uspi->s_fpbshift;
+	int offsets[4], *p;
+	int depth = ufs_block_to_path(inode, frag >> uspi->s_fpbshift, offsets);
+	int ret = 0;
+	u32 block;
+
+	if (depth == 0)
+		return 0;
+
+	p = offsets;
+
+	lock_kernel();
+	block = inode->u.ufs_i.i_u1.i_data[*p++];
+	if (!block)
+		goto out;
+	while (--depth) {
+		struct buffer_head *bh;
+		int n = *p++;
+
+		bh = sb_bread(sb, uspi->s_sbbase + fs32_to_cpu(sb, block)+(n>>shift));
+		if (!bh)
+			goto out;
+		block = ((u32*) bh->b_data)[n & mask];
+		brelse (bh);
+		if (!block)
+			goto out;
+	}
+	ret = uspi->s_sbbase + fs32_to_cpu(sb, block) + (frag & uspi->s_fpbmask);
+out:
+	unlock_kernel();
+	return ret;
+}
+
+static struct buffer_head * ufs_inode_getfrag (struct inode *inode,
+	unsigned int fragment, unsigned int new_fragment,
+	unsigned int required, int *err, int metadata, long *phys, int *new)
+{
+	struct super_block * sb;
+	struct ufs_sb_private_info * uspi;
+	struct buffer_head * result;
+	unsigned block, blockoff, lastfrag, lastblock, lastblockoff;
+	unsigned tmp, goal;
+	u32 * p, * p2;
+
+	UFSD(("ENTER, ino %lu, fragment %u, new_fragment %u, required %u\n",
+		inode->i_ino, fragment, new_fragment, required))         
+
+	sb = inode->i_sb;
+	uspi = sb->u.ufs_sb.s_uspi;
+	block = ufs_fragstoblks (fragment);
+	blockoff = ufs_fragnum (fragment);
+	p = inode->u.ufs_i.i_u1.i_data + block;
+	goal = 0;
+
+repeat:
+	tmp = fs32_to_cpu(sb, *p);
+	lastfrag = inode->u.ufs_i.i_lastfrag;
+	if (tmp && fragment < lastfrag) {
+		if (metadata) {
+			result = sb_getblk(sb, uspi->s_sbbase + tmp + blockoff);
+			if (tmp == fs32_to_cpu(sb, *p)) {
+				UFSD(("EXIT, result %u\n", tmp + blockoff))
+				return result;
+			}
+			brelse (result);
+			goto repeat;
+		} else {
+			*phys = tmp;
+			return NULL;
+		}
+	}
+
+	lastblock = ufs_fragstoblks (lastfrag);
+	lastblockoff = ufs_fragnum (lastfrag);
+	/*
+	 * We will extend file into new block beyond last allocated block
+	 */
+	if (lastblock < block) {
+		/*
+		 * We must reallocate last allocated block
+		 */
+		if (lastblockoff) {
+			p2 = inode->u.ufs_i.i_u1.i_data + lastblock;
+			tmp = ufs_new_fragments (inode, p2, lastfrag, 
+				fs32_to_cpu(sb, *p2), uspi->s_fpb - lastblockoff, err);
+			if (!tmp) {
+				if (lastfrag != inode->u.ufs_i.i_lastfrag)
+					goto repeat;
+				else
+					return NULL;
+			}
+			lastfrag = inode->u.ufs_i.i_lastfrag;
+			
+		}
+		goal = fs32_to_cpu(sb, inode->u.ufs_i.i_u1.i_data[lastblock]) + uspi->s_fpb;
+		tmp = ufs_new_fragments (inode, p, fragment - blockoff, 
+			goal, required + blockoff, err);
+	}
+	/*
+	 * We will extend last allocated block
+	 */
+	else if (lastblock == block) {
+		tmp = ufs_new_fragments (inode, p, fragment - (blockoff - lastblockoff),
+			fs32_to_cpu(sb, *p), required +  (blockoff - lastblockoff), err);
+	}
+	/*
+	 * We will allocate new block before last allocated block
+	 */
+	else /* (lastblock > block) */ {
+		if (lastblock && (tmp = fs32_to_cpu(sb, inode->u.ufs_i.i_u1.i_data[lastblock-1])))
+			goal = tmp + uspi->s_fpb;
+		tmp = ufs_new_fragments (inode, p, fragment - blockoff, 
+			goal, uspi->s_fpb, err);
+	}
+	if (!tmp) {
+		if ((!blockoff && *p) || 
+		    (blockoff && lastfrag != inode->u.ufs_i.i_lastfrag))
+			goto repeat;
+		*err = -ENOSPC;
+		return NULL;
+	}
+
+	/* The nullification of framgents done in ufs/balloc.c is
+	 * something I don't have the stomache to move into here right
+	 * now. -DaveM
+	 */
+	if (metadata) {
+		result = sb_getblk(inode->i_sb, tmp + blockoff);
+	} else {
+		*phys = tmp;
+		result = NULL;
+		*err = 0;
+		*new = 1;
+	}
+
+	inode->i_ctime = CURRENT_TIME;
+	if (IS_SYNC(inode))
+		ufs_sync_inode (inode);
+	mark_inode_dirty(inode);
+	UFSD(("EXIT, result %u\n", tmp + blockoff))
+	return result;
+}
+
+static struct buffer_head * ufs_block_getfrag (struct inode *inode,
+	struct buffer_head *bh, unsigned int fragment, unsigned int new_fragment, 
+	unsigned int blocksize, int * err, int metadata, long *phys, int *new)
+{
+	struct super_block * sb;
+	struct ufs_sb_private_info * uspi;
+	struct buffer_head * result;
+	unsigned tmp, goal, block, blockoff;
+	u32 * p;
+
+	sb = inode->i_sb;
+	uspi = sb->u.ufs_sb.s_uspi;
+	block = ufs_fragstoblks (fragment);
+	blockoff = ufs_fragnum (fragment);
+
+	UFSD(("ENTER, ino %lu, fragment %u, new_fragment %u\n", inode->i_ino, fragment, new_fragment))	
+
+	result = NULL;
+	if (!bh)
+		goto out;
+	if (!buffer_uptodate(bh)) {
+		ll_rw_block (READ, 1, &bh);
+		wait_on_buffer (bh);
+		if (!buffer_uptodate(bh))
+			goto out;
+	}
+
+	p = (u32 *) bh->b_data + block;
+repeat:
+	tmp = fs32_to_cpu(sb, *p);
+	if (tmp) {
+		if (metadata) {
+			result = sb_getblk(sb, uspi->s_sbbase + tmp + blockoff);
+			if (tmp == fs32_to_cpu(sb, *p))
+				goto out;
+			brelse (result);
+			goto repeat;
+		} else {
+			*phys = tmp;
+			goto out;
+		}
+	}
+
+	if (block && (tmp = fs32_to_cpu(sb, ((u32*)bh->b_data)[block-1]) + uspi->s_fpb))
+		goal = tmp + uspi->s_fpb;
+	else
+		goal = bh->b_blocknr + uspi->s_fpb;
+	tmp = ufs_new_fragments (inode, p, ufs_blknum(new_fragment), goal, uspi->s_fpb, err);
+	if (!tmp) {
+		if (fs32_to_cpu(sb, *p))
+			goto repeat;
+		goto out;
+	}		
+
+	/* The nullification of framgents done in ufs/balloc.c is
+	 * something I don't have the stomache to move into here right
+	 * now. -DaveM
+	 */
+	if (metadata) {
+		result = sb_getblk(sb, tmp + blockoff);
+	} else {
+		*phys = tmp;
+		*new = 1;
+	}
+
+	mark_buffer_dirty(bh);
+	if (IS_SYNC(inode)) {
+		ll_rw_block (WRITE, 1, &bh);
+		wait_on_buffer (bh);
+	}
+	inode->i_ctime = CURRENT_TIME;
+	mark_inode_dirty(inode);
+out:
+	brelse (bh);
+	UFSD(("EXIT, result %u\n", tmp + blockoff))
+	return result;
+}
+
+static int ufs_getfrag_block (struct inode *inode, long fragment, struct buffer_head *bh_result, int create)
+{
+	struct super_block * sb;
+	struct ufs_sb_private_info * uspi;
+	struct buffer_head * bh;
+	int ret, err, new;
+	unsigned long ptr, phys;
+	
+	sb = inode->i_sb;
+	uspi = sb->u.ufs_sb.s_uspi;
+
+	if (!create) {
+		phys = ufs_frag_map(inode, fragment);
+		if (phys) {
+			bh_result->b_dev = inode->i_dev;
+			bh_result->b_blocknr = phys;
+			bh_result->b_state |= (1UL << BH_Mapped);
+		}
+		return 0;
+	}
+
+	err = -EIO;
+	new = 0;
+	ret = 0;
+	bh = NULL;
+
+	lock_kernel();
+
+	UFSD(("ENTER, ino %lu, fragment %u\n", inode->i_ino, fragment))
+	if (fragment < 0)
+		goto abort_negative;
+	if (fragment >
+	    ((UFS_NDADDR + uspi->s_apb + uspi->s_2apb + uspi->s_3apb)
+	     << uspi->s_fpbshift))
+		goto abort_too_big;
+
+	err = 0;
+	ptr = fragment;
+	  
+	/*
+	 * ok, these macros clean the logic up a bit and make
+	 * it much more readable:
+	 */
+#define GET_INODE_DATABLOCK(x) \
+		ufs_inode_getfrag(inode, x, fragment, 1, &err, 0, &phys, &new)
+#define GET_INODE_PTR(x) \
+		ufs_inode_getfrag(inode, x, fragment, uspi->s_fpb, &err, 1, NULL, NULL)
+#define GET_INDIRECT_DATABLOCK(x) \
+		ufs_block_getfrag(inode, bh, x, fragment, sb->s_blocksize, \
+				  &err, 0, &phys, &new);
+#define GET_INDIRECT_PTR(x) \
+		ufs_block_getfrag(inode, bh, x, fragment, sb->s_blocksize, \
+				  &err, 1, NULL, NULL);
+
+	if (ptr < UFS_NDIR_FRAGMENT) {
+		bh = GET_INODE_DATABLOCK(ptr);
+		goto out;
+	}
+	ptr -= UFS_NDIR_FRAGMENT;
+	if (ptr < (1 << (uspi->s_apbshift + uspi->s_fpbshift))) {
+		bh = GET_INODE_PTR(UFS_IND_FRAGMENT + (ptr >> uspi->s_apbshift));
+		goto get_indirect;
+	}
+	ptr -= 1 << (uspi->s_apbshift + uspi->s_fpbshift);
+	if (ptr < (1 << (uspi->s_2apbshift + uspi->s_fpbshift))) {
+		bh = GET_INODE_PTR(UFS_DIND_FRAGMENT + (ptr >> uspi->s_2apbshift));
+		goto get_double;
+	}
+	ptr -= 1 << (uspi->s_2apbshift + uspi->s_fpbshift);
+	bh = GET_INODE_PTR(UFS_TIND_FRAGMENT + (ptr >> uspi->s_3apbshift));
+	bh = GET_INDIRECT_PTR((ptr >> uspi->s_2apbshift) & uspi->s_apbmask);
+get_double:
+	bh = GET_INDIRECT_PTR((ptr >> uspi->s_apbshift) & uspi->s_apbmask);
+get_indirect:
+	bh = GET_INDIRECT_DATABLOCK(ptr & uspi->s_apbmask);
+
+#undef GET_INODE_DATABLOCK
+#undef GET_INODE_PTR
+#undef GET_INDIRECT_DATABLOCK
+#undef GET_INDIRECT_PTR
+
+out:
+	if (err)
+		goto abort;
+	bh_result->b_dev = inode->i_dev;
+	bh_result->b_blocknr = phys;
+	bh_result->b_state |= (1UL << BH_Mapped);
+	if (new)
+		bh_result->b_state |= (1UL << BH_New);
+abort:
+	unlock_kernel();
+	return err;
+
+abort_negative:
+	ufs_warning(sb, "ufs_get_block", "block < 0");
+	goto abort;
+
+abort_too_big:
+	ufs_warning(sb, "ufs_get_block", "block > big");
+	goto abort;
+}
+
+struct buffer_head *ufs_getfrag(struct inode *inode, unsigned int fragment,
+				int create, int *err)
+{
+	struct buffer_head dummy;
+	int error;
+
+	dummy.b_state = 0;
+	dummy.b_blocknr = -1000;
+	error = ufs_getfrag_block(inode, fragment, &dummy, create);
+	*err = error;
+	if (!error && buffer_mapped(&dummy)) {
+		struct buffer_head *bh;
+		bh = sb_getblk(inode->i_sb, dummy.b_blocknr);
+		if (buffer_new(&dummy)) {
+			memset(bh->b_data, 0, inode->i_sb->s_blocksize);
+			mark_buffer_uptodate(bh, 1);
+			mark_buffer_dirty(bh);
+		}
+		return bh;
+	}
+	return NULL;
+}
+
+struct buffer_head * ufs_bread (struct inode * inode, unsigned fragment,
+	int create, int * err)
+{
+	struct buffer_head * bh;
+
+	UFSD(("ENTER, ino %lu, fragment %u\n", inode->i_ino, fragment))
+	bh = ufs_getfrag (inode, fragment, create, err);
+	if (!bh || buffer_uptodate(bh)) 		
+		return bh;
+	ll_rw_block (READ, 1, &bh);
+	wait_on_buffer (bh);
+	if (buffer_uptodate(bh))
+		return bh;
+	brelse (bh);
+	*err = -EIO;
+	return NULL;
+}
+
+static int ufs_writepage(struct page *page)
+{
+	return block_write_full_page(page,ufs_getfrag_block);
+}
+static int ufs_readpage(struct file *file, struct page *page)
+{
+	return block_read_full_page(page,ufs_getfrag_block);
+}
+static int ufs_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)
+{
+	return block_prepare_write(page,from,to,ufs_getfrag_block);
+}
+static int ufs_bmap(struct address_space *mapping, long block)
+{
+	return generic_block_bmap(mapping,block,ufs_getfrag_block);
+}
+struct address_space_operations ufs_aops = {
+	readpage: ufs_readpage,
+	writepage: ufs_writepage,
+	sync_page: block_sync_page,
+	prepare_write: ufs_prepare_write,
+	commit_write: generic_commit_write,
+	bmap: ufs_bmap
+};
+
+void ufs_read_inode (struct inode * inode)
+{
+	struct super_block * sb;
+	struct ufs_sb_private_info * uspi;
+	struct ufs_inode * ufs_inode;	
+	struct buffer_head * bh;
+	unsigned i;
+	unsigned flags;
+	
+	UFSD(("ENTER, ino %lu\n", inode->i_ino))
+	
+	sb = inode->i_sb;
+	uspi = sb->u.ufs_sb.s_uspi;
+	flags = sb->u.ufs_sb.s_flags;
+
+	if (inode->i_ino < UFS_ROOTINO || 
+	    inode->i_ino > (uspi->s_ncg * uspi->s_ipg)) {
+		ufs_warning (sb, "ufs_read_inode", "bad inode number (%lu)\n", inode->i_ino);
+		goto bad_inode;
+	}
+	
+	bh = sb_bread(sb, uspi->s_sbbase + ufs_inotofsba(inode->i_ino));
+	if (!bh) {
+		ufs_warning (sb, "ufs_read_inode", "unable to read inode %lu\n", inode->i_ino);
+		goto bad_inode;
+	}
+	ufs_inode = (struct ufs_inode *) (bh->b_data + sizeof(struct ufs_inode) * ufs_inotofsbo(inode->i_ino));
+
+	/*
+	 * Copy data to the in-core inode.
+	 */
+	inode->i_mode = fs16_to_cpu(sb, ufs_inode->ui_mode);
+	inode->i_nlink = fs16_to_cpu(sb, ufs_inode->ui_nlink);
+	if (inode->i_nlink == 0)
+		ufs_error (sb, "ufs_read_inode", "inode %lu has zero nlink\n", inode->i_ino);
+	
+	/*
+	 * Linux now has 32-bit uid and gid, so we can support EFT.
+	 */
+	inode->i_uid = ufs_get_inode_uid(sb, ufs_inode);
+	inode->i_gid = ufs_get_inode_gid(sb, ufs_inode);
+
+	inode->i_size = fs64_to_cpu(sb, ufs_inode->ui_size);
+	inode->i_atime = fs32_to_cpu(sb, ufs_inode->ui_atime.tv_sec);
+	inode->i_ctime = fs32_to_cpu(sb, ufs_inode->ui_ctime.tv_sec);
+	inode->i_mtime = fs32_to_cpu(sb, ufs_inode->ui_mtime.tv_sec);
+	inode->i_blocks = fs32_to_cpu(sb, ufs_inode->ui_blocks);
+	inode->i_blksize = PAGE_SIZE;   /* This is the optimal IO size (for stat) */
+	inode->i_version = ++event;
+
+	inode->u.ufs_i.i_flags = fs32_to_cpu(sb, ufs_inode->ui_flags);
+	inode->u.ufs_i.i_gen = fs32_to_cpu(sb, ufs_inode->ui_gen);
+	inode->u.ufs_i.i_shadow = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_shadow);
+	inode->u.ufs_i.i_oeftflag = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_oeftflag);
+	inode->u.ufs_i.i_lastfrag = (inode->i_size + uspi->s_fsize - 1) >> uspi->s_fshift;
+	
+	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
+		;
+	else if (inode->i_blocks) {
+		for (i = 0; i < (UFS_NDADDR + UFS_NINDIR); i++)
+			inode->u.ufs_i.i_u1.i_data[i] = ufs_inode->ui_u2.ui_addr.ui_db[i];
+	}
+	else {
+		for (i = 0; i < (UFS_NDADDR + UFS_NINDIR) * 4; i++)
+			inode->u.ufs_i.i_u1.i_symlink[i] = ufs_inode->ui_u2.ui_symlink[i];
+	}
+
+
+	if (S_ISREG(inode->i_mode)) {
+		inode->i_op = &ufs_file_inode_operations;
+		inode->i_fop = &ufs_file_operations;
+		inode->i_mapping->a_ops = &ufs_aops;
+	} else if (S_ISDIR(inode->i_mode)) {
+		inode->i_op = &ufs_dir_inode_operations;
+		inode->i_fop = &ufs_dir_operations;
+	} else if (S_ISLNK(inode->i_mode)) {
+		if (!inode->i_blocks)
+			inode->i_op = &ufs_fast_symlink_inode_operations;
+		else {
+			inode->i_op = &page_symlink_inode_operations;
+			inode->i_mapping->a_ops = &ufs_aops;
+		}
+	} else
+		init_special_inode(inode, inode->i_mode,
+			fs32_to_cpu(sb, ufs_inode->ui_u2.ui_addr.ui_db[0]));
+
+	brelse (bh);
+
+	UFSD(("EXIT\n"))
+	return;
+
+bad_inode:
+	make_bad_inode(inode);
+	return;
+}
+
+static int ufs_update_inode(struct inode * inode, int do_sync)
+{
+	struct super_block * sb;
+	struct ufs_sb_private_info * uspi;
+	struct buffer_head * bh;
+	struct ufs_inode * ufs_inode;
+	unsigned i;
+	unsigned flags;
+
+	UFSD(("ENTER, ino %lu\n", inode->i_ino))
+
+	sb = inode->i_sb;
+	uspi = sb->u.ufs_sb.s_uspi;
+	flags = sb->u.ufs_sb.s_flags;
+
+	if (inode->i_ino < UFS_ROOTINO || 
+	    inode->i_ino > (uspi->s_ncg * uspi->s_ipg)) {
+		ufs_warning (sb, "ufs_read_inode", "bad inode number (%lu)\n", inode->i_ino);
+		return -1;
+	}
+
+	bh = sb_bread(sb, ufs_inotofsba(inode->i_ino));
+	if (!bh) {
+		ufs_warning (sb, "ufs_read_inode", "unable to read inode %lu\n", inode->i_ino);
+		return -1;
+	}
+	ufs_inode = (struct ufs_inode *) (bh->b_data + ufs_inotofsbo(inode->i_ino) * sizeof(struct ufs_inode));
+
+	ufs_inode->ui_mode = cpu_to_fs16(sb, inode->i_mode);
+	ufs_inode->ui_nlink = cpu_to_fs16(sb, inode->i_nlink);
+
+	ufs_set_inode_uid(sb, ufs_inode, inode->i_uid);
+	ufs_set_inode_gid(sb, ufs_inode, inode->i_gid);
+		
+	ufs_inode->ui_size = cpu_to_fs64(sb, inode->i_size);
+	ufs_inode->ui_atime.tv_sec = cpu_to_fs32(sb, inode->i_atime);
+	ufs_inode->ui_atime.tv_usec = 0;
+	ufs_inode->ui_ctime.tv_sec = cpu_to_fs32(sb, inode->i_ctime);
+	ufs_inode->ui_ctime.tv_usec = 0;
+	ufs_inode->ui_mtime.tv_sec = cpu_to_fs32(sb, inode->i_mtime);
+	ufs_inode->ui_mtime.tv_usec = 0;
+	ufs_inode->ui_blocks = cpu_to_fs32(sb, inode->i_blocks);
+	ufs_inode->ui_flags = cpu_to_fs32(sb, inode->u.ufs_i.i_flags);
+	ufs_inode->ui_gen = cpu_to_fs32(sb, inode->u.ufs_i.i_gen);
+
+	if ((flags & UFS_UID_MASK) == UFS_UID_EFT) {
+		ufs_inode->ui_u3.ui_sun.ui_shadow = cpu_to_fs32(sb, inode->u.ufs_i.i_shadow);
+		ufs_inode->ui_u3.ui_sun.ui_oeftflag = cpu_to_fs32(sb, inode->u.ufs_i.i_oeftflag);
+	}
+
+	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
+		ufs_inode->ui_u2.ui_addr.ui_db[0] = cpu_to_fs32(sb, kdev_t_to_nr(inode->i_rdev));
+	else if (inode->i_blocks) {
+		for (i = 0; i < (UFS_NDADDR + UFS_NINDIR); i++)
+			ufs_inode->ui_u2.ui_addr.ui_db[i] = inode->u.ufs_i.i_u1.i_data[i];
+	}
+	else {
+		for (i = 0; i < (UFS_NDADDR + UFS_NINDIR) * 4; i++)
+			ufs_inode->ui_u2.ui_symlink[i] = inode->u.ufs_i.i_u1.i_symlink[i];
+	}
+
+	if (!inode->i_nlink)
+		memset (ufs_inode, 0, sizeof(struct ufs_inode));
+		
+	mark_buffer_dirty(bh);
+	if (do_sync) {
+		ll_rw_block (WRITE, 1, &bh);
+		wait_on_buffer (bh);
+	}
+	brelse (bh);
+	
+	UFSD(("EXIT\n"))
+	return 0;
+}
+
+void ufs_write_inode (struct inode * inode, int wait)
+{
+	lock_kernel();
+	ufs_update_inode (inode, wait);
+	unlock_kernel();
+}
+
+int ufs_sync_inode (struct inode *inode)
+{
+	return ufs_update_inode (inode, 1);
+}
+
+void ufs_delete_inode (struct inode * inode)
+{
+	/*inode->u.ufs_i.i_dtime = CURRENT_TIME;*/
+	lock_kernel();
+	mark_inode_dirty(inode);
+	ufs_update_inode(inode, IS_SYNC(inode));
+	inode->i_size = 0;
+	if (inode->i_blocks)
+		ufs_truncate (inode);
+	ufs_free_inode (inode);
+	unlock_kernel();
+}
diff --git a/fs/ufs/namei.c b/fs/ufs/namei.c
new file mode 100644
index 00000000000000..b6b1833c43963a
--- /dev/null
+++ b/fs/ufs/namei.c
@@ -0,0 +1,337 @@
+/*
+ * linux/fs/ufs/namei.c
+ *
+ * Copyright (C) 1998
+ * Daniel Pirkl <daniel.pirkl@email.cz>
+ * Charles University, Faculty of Mathematics and Physics
+ *
+ *  from
+ *
+ *  linux/fs/ext2/namei.c
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ *  from
+ *
+ *  linux/fs/minix/namei.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  Big-endian to little-endian byte-swapping/bitmaps by
+ *        David S. Miller (davem@caip.rutgers.edu), 1995
+ */
+
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/ufs_fs.h>
+
+#undef UFS_NAMEI_DEBUG
+
+#ifdef UFS_NAMEI_DEBUG
+#define UFSD(x) printk("(%s, %d), %s: ", __FILE__, __LINE__, __FUNCTION__); printk x;
+#else
+#define UFSD(x)
+#endif
+
+static inline void ufs_inc_count(struct inode *inode)
+{
+	inode->i_nlink++;
+	mark_inode_dirty(inode);
+}
+
+static inline void ufs_dec_count(struct inode *inode)
+{
+	inode->i_nlink--;
+	mark_inode_dirty(inode);
+}
+
+static inline int ufs_add_nondir(struct dentry *dentry, struct inode *inode)
+{
+	int err = ufs_add_link(dentry, inode);
+	if (!err) {
+		d_instantiate(dentry, inode);
+		return 0;
+	}
+	ufs_dec_count(inode);
+	iput(inode);
+	return err;
+}
+
+static struct dentry *ufs_lookup(struct inode * dir, struct dentry *dentry)
+{
+	struct inode * inode = NULL;
+	ino_t ino;
+	
+	if (dentry->d_name.len > UFS_MAXNAMLEN)
+		return ERR_PTR(-ENAMETOOLONG);
+
+	ino = ufs_inode_by_name(dir, dentry);
+	if (ino) {
+		inode = iget(dir->i_sb, ino);
+		if (!inode) 
+			return ERR_PTR(-EACCES);
+	}
+	d_add(dentry, inode);
+	return NULL;
+}
+
+/*
+ * By the time this is called, we already have created
+ * the directory cache entry for the new file, but it
+ * is so far negative - it has no inode.
+ *
+ * If the create succeeds, we fill in the inode information
+ * with d_instantiate(). 
+ */
+static int ufs_create (struct inode * dir, struct dentry * dentry, int mode)
+{
+	struct inode * inode = ufs_new_inode(dir, mode);
+	int err = PTR_ERR(inode);
+	if (!IS_ERR(inode)) {
+		inode->i_op = &ufs_file_inode_operations;
+		inode->i_fop = &ufs_file_operations;
+		inode->i_mapping->a_ops = &ufs_aops;
+		mark_inode_dirty(inode);
+		err = ufs_add_nondir(dentry, inode);
+	}
+	return err;
+}
+
+static int ufs_mknod (struct inode * dir, struct dentry *dentry, int mode, int rdev)
+{
+	struct inode * inode = ufs_new_inode(dir, mode);
+	int err = PTR_ERR(inode);
+	if (!IS_ERR(inode)) {
+		init_special_inode(inode, mode, rdev);
+		mark_inode_dirty(inode);
+		err = ufs_add_nondir(dentry, inode);
+	}
+	return err;
+}
+
+static int ufs_symlink (struct inode * dir, struct dentry * dentry,
+	const char * symname)
+{
+	struct super_block * sb = dir->i_sb;
+	int err = -ENAMETOOLONG;
+	unsigned l = strlen(symname)+1;
+	struct inode * inode;
+
+	if (l > sb->s_blocksize)
+		goto out;
+
+	inode = ufs_new_inode(dir, S_IFLNK | S_IRWXUGO);
+	err = PTR_ERR(inode);
+	if (IS_ERR(inode))
+		goto out;
+
+	if (l > sb->u.ufs_sb.s_uspi->s_maxsymlinklen) {
+		/* slow symlink */
+		inode->i_op = &page_symlink_inode_operations;
+		inode->i_mapping->a_ops = &ufs_aops;
+		err = block_symlink(inode, symname, l);
+		if (err)
+			goto out_fail;
+	} else {
+		/* fast symlink */
+		inode->i_op = &ufs_fast_symlink_inode_operations;
+		memcpy((char*)&inode->u.ufs_i.i_u1.i_data,symname,l);
+		inode->i_size = l-1;
+	}
+	mark_inode_dirty(inode);
+
+	err = ufs_add_nondir(dentry, inode);
+out:
+	return err;
+
+out_fail:
+	ufs_dec_count(inode);
+	iput(inode);
+	goto out;
+}
+
+static int ufs_link (struct dentry * old_dentry, struct inode * dir,
+	struct dentry *dentry)
+{
+	struct inode *inode = old_dentry->d_inode;
+
+	if (S_ISDIR(inode->i_mode))
+		return -EPERM;
+
+	if (inode->i_nlink >= UFS_LINK_MAX)
+		return -EMLINK;
+
+	inode->i_ctime = CURRENT_TIME;
+	ufs_inc_count(inode);
+	atomic_inc(&inode->i_count);
+
+	return ufs_add_nondir(dentry, inode);
+}
+
+static int ufs_mkdir(struct inode * dir, struct dentry * dentry, int mode)
+{
+	struct inode * inode;
+	int err = -EMLINK;
+
+	if (dir->i_nlink >= UFS_LINK_MAX)
+		goto out;
+
+	ufs_inc_count(dir);
+
+	inode = ufs_new_inode(dir, S_IFDIR|mode);
+	err = PTR_ERR(inode);
+	if (IS_ERR(inode))
+		goto out_dir;
+
+	inode->i_op = &ufs_dir_inode_operations;
+	inode->i_fop = &ufs_dir_operations;
+
+	ufs_inc_count(inode);
+
+	err = ufs_make_empty(inode, dir);
+	if (err)
+		goto out_fail;
+
+	err = ufs_add_link(dentry, inode);
+	if (err)
+		goto out_fail;
+
+	d_instantiate(dentry, inode);
+out:
+	return err;
+
+out_fail:
+	ufs_dec_count(inode);
+	ufs_dec_count(inode);
+	iput (inode);
+out_dir:
+	ufs_dec_count(dir);
+	goto out;
+}
+
+static int ufs_unlink(struct inode * dir, struct dentry *dentry)
+{
+	struct inode * inode = dentry->d_inode;
+	struct buffer_head * bh;
+	struct ufs_dir_entry * de;
+	int err = -ENOENT;
+
+	de = ufs_find_entry (dentry, &bh);
+	if (!de)
+		goto out;
+
+	err = ufs_delete_entry (dir, de, bh);
+	if (err)
+		goto out;
+
+	inode->i_ctime = dir->i_ctime;
+	ufs_dec_count(inode);
+	err = 0;
+out:
+	return err;
+}
+
+static int ufs_rmdir (struct inode * dir, struct dentry *dentry)
+{
+	struct inode * inode = dentry->d_inode;
+	int err= -ENOTEMPTY;
+
+	if (ufs_empty_dir (inode)) {
+		err = ufs_unlink(dir, dentry);
+		if (!err) {
+			inode->i_size = 0;
+			ufs_dec_count(inode);
+			ufs_dec_count(dir);
+		}
+	}
+	return err;
+}
+
+static int ufs_rename (struct inode * old_dir, struct dentry * old_dentry,
+	struct inode * new_dir,	struct dentry * new_dentry )
+{
+	struct inode *old_inode = old_dentry->d_inode;
+	struct inode *new_inode = new_dentry->d_inode;
+	struct buffer_head *dir_bh = NULL;
+	struct ufs_dir_entry *dir_de = NULL;
+	struct buffer_head *old_bh;
+	struct ufs_dir_entry *old_de;
+	int err = -ENOENT;
+
+	old_de = ufs_find_entry (old_dentry, &old_bh);
+	if (!old_de)
+		goto out;
+
+	if (S_ISDIR(old_inode->i_mode)) {
+		err = -EIO;
+		dir_de = ufs_dotdot(old_inode, &dir_bh);
+		if (!dir_de)
+			goto out_old;
+	}
+
+	if (new_inode) {
+		struct buffer_head *new_bh;
+		struct ufs_dir_entry *new_de;
+
+		err = -ENOTEMPTY;
+		if (dir_de && !ufs_empty_dir (new_inode))
+			goto out_dir;
+		err = -ENOENT;
+		new_de = ufs_find_entry (new_dentry, &new_bh);
+		if (!new_de)
+			goto out_dir;
+		ufs_inc_count(old_inode);
+		ufs_set_link(new_dir, new_de, new_bh, old_inode);
+		new_inode->i_ctime = CURRENT_TIME;
+		if (dir_de)
+			new_inode->i_nlink--;
+		ufs_dec_count(new_inode);
+	} else {
+		if (dir_de) {
+			err = -EMLINK;
+			if (new_dir->i_nlink >= UFS_LINK_MAX)
+				goto out_dir;
+		}
+		ufs_inc_count(old_inode);
+		err = ufs_add_link(new_dentry, old_inode);
+		if (err) {
+			ufs_dec_count(old_inode);
+			goto out_dir;
+		}
+		if (dir_de)
+			ufs_inc_count(new_dir);
+	}
+
+	ufs_delete_entry (old_dir, old_de, old_bh);
+
+	ufs_dec_count(old_inode);
+
+	if (dir_de) {
+		ufs_set_link(old_inode, dir_de, dir_bh, new_dir);
+		ufs_dec_count(old_dir);
+	}
+	return 0;
+
+out_dir:
+	if (dir_de)
+		brelse(dir_bh);
+out_old:
+	brelse (old_bh);
+out:
+	return err;
+}
+
+struct inode_operations ufs_dir_inode_operations = {
+	create:		ufs_create,
+	lookup:		ufs_lookup,
+	link:		ufs_link,
+	unlink:		ufs_unlink,
+	symlink:	ufs_symlink,
+	mkdir:		ufs_mkdir,
+	rmdir:		ufs_rmdir,
+	mknod:		ufs_mknod,
+	rename:		ufs_rename,
+};
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
new file mode 100644
index 00000000000000..6ac2400ed9c83e
--- /dev/null
+++ b/fs/ufs/super.c
@@ -0,0 +1,1009 @@
+/*
+ *  linux/fs/ufs/super.c
+ *
+ * Copyright (C) 1998
+ * Daniel Pirkl <daniel.pirkl@email.cz>
+ * Charles University, Faculty of Mathematics and Physics
+ */
+
+/* Derived from
+ *
+ *  linux/fs/ext2/super.c
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ *  from
+ *
+ *  linux/fs/minix/inode.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  Big-endian to little-endian byte-swapping/bitmaps by
+ *        David S. Miller (davem@caip.rutgers.edu), 1995
+ */
+ 
+/*
+ * Inspired by
+ *
+ *  linux/fs/ufs/super.c
+ *
+ * Copyright (C) 1996
+ * Adrian Rodriguez (adrian@franklins-tower.rutgers.edu)
+ * Laboratory for Computer Science Research Computing Facility
+ * Rutgers, The State University of New Jersey
+ *
+ * Copyright (C) 1996  Eddie C. Dost  (ecd@skynet.be)
+ *
+ * Kernel module support added on 96/04/26 by
+ * Stefan Reinauer <stepan@home.culture.mipt.ru>
+ *
+ * Module usage counts added on 96/04/29 by
+ * Gertjan van Wingerde <gertjan@cs.vu.nl>
+ *
+ * Clean swab support on 19970406 by
+ * Francois-Rene Rideau <fare@tunes.org>
+ *
+ * 4.4BSD (FreeBSD) support added on February 1st 1998 by
+ * Niels Kristian Bech Jensen <nkbj@image.dk> partially based
+ * on code by Martin von Loewis <martin@mira.isdn.cs.tu-berlin.de>.
+ *
+ * NeXTstep support added on February 5th 1998 by
+ * Niels Kristian Bech Jensen <nkbj@image.dk>.
+ *
+ * write support Daniel Pirkl <daniel.pirkl@email.cz> 1998
+ * 
+ * HP/UX hfs filesystem support added by
+ * Martin K. Petersen <mkp@mkp.net>, August 1999
+ *
+ */
+
+
+#include <linux/config.h>
+#include <linux/module.h>
+
+#include <stdarg.h>
+
+#include <asm/bitops.h>
+#include <asm/uaccess.h>
+#include <asm/system.h>
+
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/ufs_fs.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <linux/locks.h>
+#include <linux/blkdev.h>
+#include <linux/init.h>
+
+#include "swab.h"
+#include "util.h"
+
+#undef UFS_SUPER_DEBUG
+#undef UFS_SUPER_DEBUG_MORE
+
+#ifdef UFS_SUPER_DEBUG
+#define UFSD(x) printk("(%s, %d), %s: ", __FILE__, __LINE__, __FUNCTION__); printk x;
+#else
+#define UFSD(x)
+#endif
+
+#ifdef UFS_SUPER_DEBUG_MORE
+/*
+ * Print contents of ufs_super_block, useful for debugging
+ */
+void ufs_print_super_stuff(struct super_block *sb,
+	struct ufs_super_block_first * usb1,
+	struct ufs_super_block_second * usb2, 
+	struct ufs_super_block_third * usb3)
+{
+	printk("ufs_print_super_stuff\n");
+	printk("size of usb:     %u\n", sizeof(struct ufs_super_block));
+	printk("  magic:         0x%x\n", fs32_to_cpu(sb, usb3->fs_magic));
+	printk("  sblkno:        %u\n", fs32_to_cpu(sb, usb1->fs_sblkno));
+	printk("  cblkno:        %u\n", fs32_to_cpu(sb, usb1->fs_cblkno));
+	printk("  iblkno:        %u\n", fs32_to_cpu(sb, usb1->fs_iblkno));
+	printk("  dblkno:        %u\n", fs32_to_cpu(sb, usb1->fs_dblkno));
+	printk("  cgoffset:      %u\n", fs32_to_cpu(sb, usb1->fs_cgoffset));
+	printk("  ~cgmask:       0x%x\n", ~fs32_to_cpu(sb, usb1->fs_cgmask));
+	printk("  size:          %u\n", fs32_to_cpu(sb, usb1->fs_size));
+	printk("  dsize:         %u\n", fs32_to_cpu(sb, usb1->fs_dsize));
+	printk("  ncg:           %u\n", fs32_to_cpu(sb, usb1->fs_ncg));
+	printk("  bsize:         %u\n", fs32_to_cpu(sb, usb1->fs_bsize));
+	printk("  fsize:         %u\n", fs32_to_cpu(sb, usb1->fs_fsize));
+	printk("  frag:          %u\n", fs32_to_cpu(sb, usb1->fs_frag));
+	printk("  fragshift:     %u\n", fs32_to_cpu(sb, usb1->fs_fragshift));
+	printk("  ~fmask:        %u\n", ~fs32_to_cpu(sb, usb1->fs_fmask));
+	printk("  fshift:        %u\n", fs32_to_cpu(sb, usb1->fs_fshift));
+	printk("  sbsize:        %u\n", fs32_to_cpu(sb, usb1->fs_sbsize));
+	printk("  spc:           %u\n", fs32_to_cpu(sb, usb1->fs_spc));
+	printk("  cpg:           %u\n", fs32_to_cpu(sb, usb1->fs_cpg));
+	printk("  ipg:           %u\n", fs32_to_cpu(sb, usb1->fs_ipg));
+	printk("  fpg:           %u\n", fs32_to_cpu(sb, usb1->fs_fpg));
+	printk("  csaddr:        %u\n", fs32_to_cpu(sb, usb1->fs_csaddr));
+	printk("  cssize:        %u\n", fs32_to_cpu(sb, usb1->fs_cssize));
+	printk("  cgsize:        %u\n", fs32_to_cpu(sb, usb1->fs_cgsize));
+	printk("  fstodb:        %u\n", fs32_to_cpu(sb, usb1->fs_fsbtodb));
+	printk("  contigsumsize: %d\n", fs32_to_cpu(sb, usb3->fs_u2.fs_44.fs_contigsumsize));
+	printk("  postblformat:  %u\n", fs32_to_cpu(sb, usb3->fs_postblformat));
+	printk("  nrpos:         %u\n", fs32_to_cpu(sb, usb3->fs_nrpos));
+	printk("  ndir           %u\n", fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir));
+	printk("  nifree         %u\n", fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree));
+	printk("  nbfree         %u\n", fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree));
+	printk("  nffree         %u\n", fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree));
+	printk("\n");
+}
+
+
+/*
+ * Print contents of ufs_cylinder_group, useful for debugging
+ */
+void ufs_print_cylinder_stuff(struct super_block *sb, struct ufs_cylinder_group *cg)
+{
+	printk("\nufs_print_cylinder_stuff\n");
+	printk("size of ucg: %u\n", sizeof(struct ufs_cylinder_group));
+	printk("  magic:        %x\n", fs32_to_cpu(sb, cg->cg_magic));
+	printk("  time:         %u\n", fs32_to_cpu(sb, cg->cg_time));
+	printk("  cgx:          %u\n", fs32_to_cpu(sb, cg->cg_cgx));
+	printk("  ncyl:         %u\n", fs16_to_cpu(sb, cg->cg_ncyl));
+	printk("  niblk:        %u\n", fs16_to_cpu(sb, cg->cg_niblk));
+	printk("  ndblk:        %u\n", fs32_to_cpu(sb, cg->cg_ndblk));
+	printk("  cs_ndir:      %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_ndir));
+	printk("  cs_nbfree:    %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nbfree));
+	printk("  cs_nifree:    %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nifree));
+	printk("  cs_nffree:    %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nffree));
+	printk("  rotor:        %u\n", fs32_to_cpu(sb, cg->cg_rotor));
+	printk("  frotor:       %u\n", fs32_to_cpu(sb, cg->cg_frotor));
+	printk("  irotor:       %u\n", fs32_to_cpu(sb, cg->cg_irotor));
+	printk("  frsum:        %u, %u, %u, %u, %u, %u, %u, %u\n",
+	    fs32_to_cpu(sb, cg->cg_frsum[0]), fs32_to_cpu(sb, cg->cg_frsum[1]),
+	    fs32_to_cpu(sb, cg->cg_frsum[2]), fs32_to_cpu(sb, cg->cg_frsum[3]),
+	    fs32_to_cpu(sb, cg->cg_frsum[4]), fs32_to_cpu(sb, cg->cg_frsum[5]),
+	    fs32_to_cpu(sb, cg->cg_frsum[6]), fs32_to_cpu(sb, cg->cg_frsum[7]));
+	printk("  btotoff:      %u\n", fs32_to_cpu(sb, cg->cg_btotoff));
+	printk("  boff:         %u\n", fs32_to_cpu(sb, cg->cg_boff));
+	printk("  iuseoff:      %u\n", fs32_to_cpu(sb, cg->cg_iusedoff));
+	printk("  freeoff:      %u\n", fs32_to_cpu(sb, cg->cg_freeoff));
+	printk("  nextfreeoff:  %u\n", fs32_to_cpu(sb, cg->cg_nextfreeoff));
+	printk("  clustersumoff %u\n", fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clustersumoff));
+	printk("  clusteroff    %u\n", fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clusteroff));
+	printk("  nclusterblks  %u\n", fs32_to_cpu(sb, cg->cg_u.cg_44.cg_nclusterblks));
+	printk("\n");
+}
+#endif /* UFS_SUPER_DEBUG_MORE */
+
+static struct super_operations ufs_super_ops;
+
+static char error_buf[1024];
+
+void ufs_error (struct super_block * sb, const char * function,
+	const char * fmt, ...)
+{
+	struct ufs_sb_private_info * uspi;
+	struct ufs_super_block_first * usb1;
+	va_list args;
+
+	uspi = sb->u.ufs_sb.s_uspi;
+	usb1 = ubh_get_usb_first(USPI_UBH);
+	
+	if (!(sb->s_flags & MS_RDONLY)) {
+		usb1->fs_clean = UFS_FSBAD;
+		ubh_mark_buffer_dirty(USPI_UBH);
+		sb->s_dirt = 1;
+		sb->s_flags |= MS_RDONLY;
+	}
+	va_start (args, fmt);
+	vsprintf (error_buf, fmt, args);
+	va_end (args);
+	switch (sb->u.ufs_sb.s_mount_opt & UFS_MOUNT_ONERROR) {
+	case UFS_MOUNT_ONERROR_PANIC:
+		panic ("UFS-fs panic (device %s): %s: %s\n", 
+			kdevname(sb->s_dev), function, error_buf);
+
+	case UFS_MOUNT_ONERROR_LOCK:
+	case UFS_MOUNT_ONERROR_UMOUNT:
+	case UFS_MOUNT_ONERROR_REPAIR:
+		printk (KERN_CRIT "UFS-fs error (device %s): %s: %s\n",
+			kdevname(sb->s_dev), function, error_buf);
+	}		
+}
+
+void ufs_panic (struct super_block * sb, const char * function,
+	const char * fmt, ...)
+{
+	struct ufs_sb_private_info * uspi;
+	struct ufs_super_block_first * usb1;
+	va_list args;
+	
+	uspi = sb->u.ufs_sb.s_uspi;
+	usb1 = ubh_get_usb_first(USPI_UBH);
+	
+	if (!(sb->s_flags & MS_RDONLY)) {
+		usb1->fs_clean = UFS_FSBAD;
+		ubh_mark_buffer_dirty(USPI_UBH);
+		sb->s_dirt = 1;
+	}
+	va_start (args, fmt);
+	vsprintf (error_buf, fmt, args);
+	va_end (args);
+	sb->s_flags |= MS_RDONLY;
+	printk (KERN_CRIT "UFS-fs panic (device %s): %s: %s\n",
+		kdevname(sb->s_dev), function, error_buf);
+}
+
+void ufs_warning (struct super_block * sb, const char * function,
+	const char * fmt, ...)
+{
+	va_list args;
+
+	va_start (args, fmt);
+	vsprintf (error_buf, fmt, args);
+	va_end (args);
+	printk (KERN_WARNING "UFS-fs warning (device %s): %s: %s\n",
+		kdevname(sb->s_dev), function, error_buf);
+}
+
+static int ufs_parse_options (char * options, unsigned * mount_options)
+{
+	char * this_char;
+	char * value;
+	
+	UFSD(("ENTER\n"))
+	
+	if (!options)
+		return 1;
+		
+	for (this_char = strtok (options, ",");
+	     this_char != NULL;
+	     this_char = strtok (NULL, ",")) {
+	     
+		if ((value = strchr (this_char, '=')) != NULL)
+			*value++ = 0;
+		if (!strcmp (this_char, "ufstype")) {
+			ufs_clear_opt (*mount_options, UFSTYPE);
+			if (!strcmp (value, "old"))
+				ufs_set_opt (*mount_options, UFSTYPE_OLD);
+			else if (!strcmp (value, "sun"))
+				ufs_set_opt (*mount_options, UFSTYPE_SUN);
+			else if (!strcmp (value, "44bsd"))
+				ufs_set_opt (*mount_options, UFSTYPE_44BSD);
+			else if (!strcmp (value, "nextstep"))
+				ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP);
+			else if (!strcmp (value, "nextstep-cd"))
+				ufs_set_opt (*mount_options, UFSTYPE_NEXTSTEP_CD);
+			else if (!strcmp (value, "openstep"))
+				ufs_set_opt (*mount_options, UFSTYPE_OPENSTEP);
+			else if (!strcmp (value, "sunx86"))
+				ufs_set_opt (*mount_options, UFSTYPE_SUNx86);
+			else if (!strcmp (value, "hp"))
+				ufs_set_opt (*mount_options, UFSTYPE_HP);
+			else {
+				printk ("UFS-fs: Invalid type option: %s\n", value);
+				return 0;
+			}
+		}
+		else if (!strcmp (this_char, "onerror")) {
+			ufs_clear_opt (*mount_options, ONERROR);
+			if (!strcmp (value, "panic"))
+				ufs_set_opt (*mount_options, ONERROR_PANIC);
+			else if (!strcmp (value, "lock"))
+				ufs_set_opt (*mount_options, ONERROR_LOCK);
+			else if (!strcmp (value, "umount"))
+				ufs_set_opt (*mount_options, ONERROR_UMOUNT);
+			else if (!strcmp (value, "repair")) {
+				printk("UFS-fs: Unable to do repair on error, "
+					"will lock lock instead \n");
+				ufs_set_opt (*mount_options, ONERROR_REPAIR);
+			}
+			else {
+				printk ("UFS-fs: Invalid action onerror: %s\n", value);
+				return 0;
+			}
+		}
+		else {
+			printk("UFS-fs: Invalid option: %s\n", this_char);
+			return 0;
+		}
+	}
+	return 1;
+}
+
+/*
+ * Read on-disk structures associated with cylinder groups
+ */
+int ufs_read_cylinder_structures (struct super_block * sb) {
+	struct ufs_sb_private_info * uspi;
+	struct ufs_buffer_head * ubh;
+	unsigned char * base, * space;
+	unsigned size, blks, i;
+	
+	UFSD(("ENTER\n"))
+	
+	uspi = sb->u.ufs_sb.s_uspi;
+	
+	/*
+	 * Read cs structures from (usually) first data block
+	 * on the device. 
+	 */
+	size = uspi->s_cssize;
+	blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift;
+	base = space = kmalloc(size, GFP_KERNEL);
+	if (!base)
+		goto failed; 
+	for (i = 0; i < blks; i += uspi->s_fpb) {
+		size = uspi->s_bsize;
+		if (i + uspi->s_fpb > blks)
+			size = (blks - i) * uspi->s_fsize;
+		ubh = ubh_bread(sb, uspi->s_csaddr + i, size);
+		if (!ubh)
+			goto failed;
+		ubh_ubhcpymem (space, ubh, size);
+		sb->u.ufs_sb.s_csp[ufs_fragstoblks(i)] = (struct ufs_csum *)space;
+		space += size;
+		ubh_brelse (ubh);
+		ubh = NULL;
+	}
+
+	/*
+	 * Read cylinder group (we read only first fragment from block
+	 * at this time) and prepare internal data structures for cg caching.
+	 */
+	if (!(sb->u.ufs_sb.s_ucg = kmalloc (sizeof(struct buffer_head *) * uspi->s_ncg, GFP_KERNEL)))
+		goto failed;
+	for (i = 0; i < uspi->s_ncg; i++) 
+		sb->u.ufs_sb.s_ucg[i] = NULL;
+	for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) {
+		sb->u.ufs_sb.s_ucpi[i] = NULL;
+		sb->u.ufs_sb.s_cgno[i] = UFS_CGNO_EMPTY;
+	}
+	for (i = 0; i < uspi->s_ncg; i++) {
+		UFSD(("read cg %u\n", i))
+		if (!(sb->u.ufs_sb.s_ucg[i] = sb_bread(sb, ufs_cgcmin(i))))
+			goto failed;
+		if (!ufs_cg_chkmagic (sb, (struct ufs_cylinder_group *) sb->u.ufs_sb.s_ucg[i]->b_data))
+			goto failed;
+#ifdef UFS_SUPER_DEBUG_MORE
+		ufs_print_cylinder_stuff(sb, (struct ufs_cylinder_group *) sb->u.ufs_sb.s_ucg[i]->b_data);
+#endif
+	}
+	for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) {
+		if (!(sb->u.ufs_sb.s_ucpi[i] = kmalloc (sizeof(struct ufs_cg_private_info), GFP_KERNEL)))
+			goto failed;
+		sb->u.ufs_sb.s_cgno[i] = UFS_CGNO_EMPTY;
+	}
+	sb->u.ufs_sb.s_cg_loaded = 0;
+	UFSD(("EXIT\n"))
+	return 1;
+
+failed:
+	if (base) kfree (base);
+	if (sb->u.ufs_sb.s_ucg) {
+		for (i = 0; i < uspi->s_ncg; i++)
+			if (sb->u.ufs_sb.s_ucg[i]) brelse (sb->u.ufs_sb.s_ucg[i]);
+		kfree (sb->u.ufs_sb.s_ucg);
+		for (i = 0; i < UFS_MAX_GROUP_LOADED; i++)
+			if (sb->u.ufs_sb.s_ucpi[i]) kfree (sb->u.ufs_sb.s_ucpi[i]);
+	}
+	UFSD(("EXIT (FAILED)\n"))
+	return 0;
+}
+
+/*
+ * Put on-disk structures associated with cylinder groups and 
+ * write them back to disk
+ */
+void ufs_put_cylinder_structures (struct super_block * sb) {
+	struct ufs_sb_private_info * uspi;
+	struct ufs_buffer_head * ubh;
+	unsigned char * base, * space;
+	unsigned blks, size, i;
+	
+	UFSD(("ENTER\n"))
+	
+	uspi = sb->u.ufs_sb.s_uspi;
+
+	size = uspi->s_cssize;
+	blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift;
+	base = space = (char*) sb->u.ufs_sb.s_csp[0];
+	for (i = 0; i < blks; i += uspi->s_fpb) {
+		size = uspi->s_bsize;
+		if (i + uspi->s_fpb > blks)
+			size = (blks - i) * uspi->s_fsize;
+		ubh = ubh_bread(sb, uspi->s_csaddr + i, size);
+		ubh_memcpyubh (ubh, space, size);
+		space += size;
+		ubh_mark_buffer_uptodate (ubh, 1);
+		ubh_mark_buffer_dirty (ubh);
+		ubh_brelse (ubh);
+	}
+	for (i = 0; i < sb->u.ufs_sb.s_cg_loaded; i++) {
+		ufs_put_cylinder (sb, i);
+		kfree (sb->u.ufs_sb.s_ucpi[i]);
+	}
+	for (; i < UFS_MAX_GROUP_LOADED; i++) 
+		kfree (sb->u.ufs_sb.s_ucpi[i]);
+	for (i = 0; i < uspi->s_ncg; i++) 
+		brelse (sb->u.ufs_sb.s_ucg[i]);
+	kfree (sb->u.ufs_sb.s_ucg);
+	kfree (base);
+	UFSD(("EXIT\n"))
+}
+
+struct super_block * ufs_read_super (struct super_block * sb, void * data,
+	int silent)
+{
+	struct ufs_sb_private_info * uspi;
+	struct ufs_super_block_first * usb1;
+	struct ufs_super_block_second * usb2;
+	struct ufs_super_block_third * usb3;
+	struct ufs_buffer_head * ubh;	
+	struct inode *inode;
+	unsigned block_size, super_block_size;
+	unsigned flags;
+
+	uspi = NULL;
+	ubh = NULL;
+	flags = 0;
+	
+	UFSD(("ENTER\n"))
+		
+	UFSD(("flag %u\n", (int)(sb->s_flags & MS_RDONLY)))
+	
+#ifndef CONFIG_UFS_FS_WRITE
+	if (!(sb->s_flags & MS_RDONLY)) {
+		printk("ufs was compiled with read-only support, "
+		"can't be mounted as read-write\n");
+		goto failed;
+	}
+#endif
+	/*
+	 * Set default mount options
+	 * Parse mount options
+	 */
+	sb->u.ufs_sb.s_mount_opt = 0;
+	ufs_set_opt (sb->u.ufs_sb.s_mount_opt, ONERROR_LOCK);
+	if (!ufs_parse_options ((char *) data, &sb->u.ufs_sb.s_mount_opt)) {
+		printk("wrong mount options\n");
+		goto failed;
+	}
+	if (!(sb->u.ufs_sb.s_mount_opt & UFS_MOUNT_UFSTYPE)) {
+		printk("You didn't specify the type of your ufs filesystem\n\n"
+		"mount -t ufs -o ufstype="
+		"sun|sunx86|44bsd|old|hp|nextstep|netxstep-cd|openstep ...\n\n"
+		">>>WARNING<<< Wrong ufstype may corrupt your filesystem, "
+		"default is ufstype=old\n");
+		ufs_set_opt (sb->u.ufs_sb.s_mount_opt, UFSTYPE_OLD);
+	}
+
+	sb->u.ufs_sb.s_uspi = uspi =
+		kmalloc (sizeof(struct ufs_sb_private_info), GFP_KERNEL);
+	if (!uspi)
+		goto failed;
+
+	/* Keep 2Gig file limit. Some UFS variants need to override 
+	   this but as I don't know which I'll let those in the know loosen
+	   the rules */
+	   
+	switch (sb->u.ufs_sb.s_mount_opt & UFS_MOUNT_UFSTYPE) {
+	case UFS_MOUNT_UFSTYPE_44BSD:
+		UFSD(("ufstype=44bsd\n"))
+		uspi->s_fsize = block_size = 512;
+		uspi->s_fmask = ~(512 - 1);
+		uspi->s_fshift = 9;
+		uspi->s_sbsize = super_block_size = 1536;
+		uspi->s_sbbase = 0;
+		flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD;
+		break;
+		
+	case UFS_MOUNT_UFSTYPE_SUN:
+		UFSD(("ufstype=sun\n"))
+		uspi->s_fsize = block_size = 1024;
+		uspi->s_fmask = ~(1024 - 1);
+		uspi->s_fshift = 10;
+		uspi->s_sbsize = super_block_size = 2048;
+		uspi->s_sbbase = 0;
+		uspi->s_maxsymlinklen = 56;
+		flags |= UFS_DE_OLD | UFS_UID_EFT | UFS_ST_SUN | UFS_CG_SUN;
+		break;
+
+	case UFS_MOUNT_UFSTYPE_SUNx86:
+		UFSD(("ufstype=sunx86\n"))
+		uspi->s_fsize = block_size = 1024;
+		uspi->s_fmask = ~(1024 - 1);
+		uspi->s_fshift = 10;
+		uspi->s_sbsize = super_block_size = 2048;
+		uspi->s_sbbase = 0;
+		uspi->s_maxsymlinklen = 56;
+		flags |= UFS_DE_OLD | UFS_UID_EFT | UFS_ST_SUNx86 | UFS_CG_SUN;
+		break;
+
+	case UFS_MOUNT_UFSTYPE_OLD:
+		UFSD(("ufstype=old\n"))
+		uspi->s_fsize = block_size = 1024;
+		uspi->s_fmask = ~(1024 - 1);
+		uspi->s_fshift = 10;
+		uspi->s_sbsize = super_block_size = 2048;
+		uspi->s_sbbase = 0;
+		flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD;
+		if (!(sb->s_flags & MS_RDONLY)) {
+			printk(KERN_INFO "ufstype=old is supported read-only\n"); 
+			sb->s_flags |= MS_RDONLY;
+		}
+		break;
+	
+	case UFS_MOUNT_UFSTYPE_NEXTSTEP:
+		UFSD(("ufstype=nextstep\n"))
+		uspi->s_fsize = block_size = 1024;
+		uspi->s_fmask = ~(1024 - 1);
+		uspi->s_fshift = 10;
+		uspi->s_sbsize = super_block_size = 2048;
+		uspi->s_sbbase = 0;
+		flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD;
+		if (!(sb->s_flags & MS_RDONLY)) {
+			printk(KERN_INFO "ufstype=nextstep is supported read-only\n");
+			sb->s_flags |= MS_RDONLY;
+		}
+		break;
+	
+	case UFS_MOUNT_UFSTYPE_NEXTSTEP_CD:
+		UFSD(("ufstype=nextstep-cd\n"))
+		uspi->s_fsize = block_size = 2048;
+		uspi->s_fmask = ~(2048 - 1);
+		uspi->s_fshift = 11;
+		uspi->s_sbsize = super_block_size = 2048;
+		uspi->s_sbbase = 0;
+		flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD;
+		if (!(sb->s_flags & MS_RDONLY)) {
+			printk(KERN_INFO "ufstype=nextstep-cd is supported read-only\n");
+			sb->s_flags |= MS_RDONLY;
+		}
+		break;
+	
+	case UFS_MOUNT_UFSTYPE_OPENSTEP:
+		UFSD(("ufstype=openstep\n"))
+		uspi->s_fsize = block_size = 1024;
+		uspi->s_fmask = ~(1024 - 1);
+		uspi->s_fshift = 10;
+		uspi->s_sbsize = super_block_size = 2048;
+		uspi->s_sbbase = 0;
+		flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD;
+		if (!(sb->s_flags & MS_RDONLY)) {
+			printk(KERN_INFO "ufstype=openstep is supported read-only\n");
+			sb->s_flags |= MS_RDONLY;
+		}
+		break;
+	
+	case UFS_MOUNT_UFSTYPE_HP:
+		UFSD(("ufstype=hp\n"))
+		uspi->s_fsize = block_size = 1024;
+		uspi->s_fmask = ~(1024 - 1);
+		uspi->s_fshift = 10;
+		uspi->s_sbsize = super_block_size = 2048;
+		uspi->s_sbbase = 0;
+		flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD;
+		if (!(sb->s_flags & MS_RDONLY)) {
+			printk(KERN_INFO "ufstype=hp is supported read-only\n");
+			sb->s_flags |= MS_RDONLY;
+ 		}
+ 		break;
+	default:
+		printk("unknown ufstype\n");
+		goto failed;
+	}
+	
+again:	
+	if (set_blocksize (sb->s_dev, block_size)) {
+		printk(KERN_ERR "UFS: failed to set blocksize\n");
+		goto failed;
+	}
+
+	sb->s_blocksize = block_size;
+
+	/*
+	 * read ufs super block from device
+	 */
+	ubh = ubh_bread_uspi (uspi, sb, uspi->s_sbbase + UFS_SBLOCK/block_size, super_block_size);
+	if (!ubh) 
+		goto failed;
+	
+	usb1 = ubh_get_usb_first(USPI_UBH);
+	usb2 = ubh_get_usb_second(USPI_UBH);
+	usb3 = ubh_get_usb_third(USPI_UBH);
+
+	/*
+	 * Check ufs magic number
+	 */
+	switch (__constant_le32_to_cpu(usb3->fs_magic)) {
+		case UFS_MAGIC:
+		case UFS_MAGIC_LFN:
+	        case UFS_MAGIC_FEA:
+	        case UFS_MAGIC_4GB:
+			sb->u.ufs_sb.s_bytesex = BYTESEX_LE;
+			goto magic_found;
+	}
+	switch (__constant_be32_to_cpu(usb3->fs_magic)) {
+		case UFS_MAGIC:
+		case UFS_MAGIC_LFN:
+	        case UFS_MAGIC_FEA:
+	        case UFS_MAGIC_4GB:
+			sb->u.ufs_sb.s_bytesex = BYTESEX_BE;
+			goto magic_found;
+	}
+
+	if ((((sb->u.ufs_sb.s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP) 
+	  || ((sb->u.ufs_sb.s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_NEXTSTEP_CD) 
+	  || ((sb->u.ufs_sb.s_mount_opt & UFS_MOUNT_UFSTYPE) == UFS_MOUNT_UFSTYPE_OPENSTEP)) 
+	  && uspi->s_sbbase < 256) {
+		ubh_brelse_uspi(uspi);
+		ubh = NULL;
+		uspi->s_sbbase += 8;
+		goto again;
+	}
+	printk("ufs_read_super: bad magic number\n");
+	goto failed;
+
+magic_found:
+	/*
+	 * Check block and fragment sizes
+	 */
+	uspi->s_bsize = fs32_to_cpu(sb, usb1->fs_bsize);
+	uspi->s_fsize = fs32_to_cpu(sb, usb1->fs_fsize);
+	uspi->s_sbsize = fs32_to_cpu(sb, usb1->fs_sbsize);
+	uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask);
+	uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift);
+
+	if (uspi->s_fsize & (uspi->s_fsize - 1)) {
+		printk(KERN_ERR "ufs_read_super: fragment size %u is not a power of 2\n",
+			uspi->s_fsize);
+		goto failed;
+	}
+	if (uspi->s_fsize < 512) {
+		printk(KERN_ERR "ufs_read_super: fragment size %u is too small\n",
+			uspi->s_fsize);
+		goto failed;
+	}
+	if (uspi->s_fsize > 4096) {
+		printk(KERN_ERR "ufs_read_super: fragment size %u is too large\n",
+			uspi->s_fsize);
+		goto failed;
+	}
+	if (uspi->s_bsize & (uspi->s_bsize - 1)) {
+		printk(KERN_ERR "ufs_read_super: block size %u is not a power of 2\n",
+			uspi->s_bsize);
+		goto failed;
+	}
+	if (uspi->s_bsize < 4096) {
+		printk(KERN_ERR "ufs_read_super: block size %u is too small\n",
+			uspi->s_bsize);
+		goto failed;
+	}
+	if (uspi->s_bsize / uspi->s_fsize > 8) {
+		printk(KERN_ERR "ufs_read_super: too many fragments per block (%u)\n",
+			uspi->s_bsize / uspi->s_fsize);
+		goto failed;
+	}
+	if (uspi->s_fsize != block_size || uspi->s_sbsize != super_block_size) {
+		ubh_brelse_uspi(uspi);
+		ubh = NULL;
+		block_size = uspi->s_fsize;
+		super_block_size = uspi->s_sbsize;
+		UFSD(("another value of block_size or super_block_size %u, %u\n", block_size, super_block_size))
+		goto again;
+	}
+
+#ifdef UFS_SUPER_DEBUG_MORE
+	ufs_print_super_stuff(sb, usb1, usb2, usb3);
+#endif
+
+	/*
+	 * Check, if file system was correctly unmounted.
+	 * If not, make it read only.
+	 */
+	if (((flags & UFS_ST_MASK) == UFS_ST_44BSD) ||
+	  ((flags & UFS_ST_MASK) == UFS_ST_OLD) ||
+	  (((flags & UFS_ST_MASK) == UFS_ST_SUN || 
+	  (flags & UFS_ST_MASK) == UFS_ST_SUNx86) && 
+	  (ufs_get_fs_state(sb, usb1, usb3) == (UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time))))) {
+		switch(usb1->fs_clean) {
+		case UFS_FSCLEAN:
+			UFSD(("fs is clean\n"))
+			break;
+		case UFS_FSSTABLE:
+			UFSD(("fs is stable\n"))
+			break;
+		case UFS_FSOSF1:
+			UFSD(("fs is DEC OSF/1\n"))
+			break;
+		case UFS_FSACTIVE:
+			printk("ufs_read_super: fs is active\n");
+			sb->s_flags |= MS_RDONLY;
+			break;
+		case UFS_FSBAD:
+			printk("ufs_read_super: fs is bad\n");
+			sb->s_flags |= MS_RDONLY;
+			break;
+		default:
+			printk("ufs_read_super: can't grok fs_clean 0x%x\n", usb1->fs_clean);
+			sb->s_flags |= MS_RDONLY;
+			break;
+		}
+	}
+	else {
+		printk("ufs_read_super: fs needs fsck\n");
+		sb->s_flags |= MS_RDONLY;
+	}
+
+	/*
+	 * Read ufs_super_block into internal data structures
+	 */
+	sb->s_blocksize = fs32_to_cpu(sb, usb1->fs_fsize);
+	sb->s_blocksize_bits = fs32_to_cpu(sb, usb1->fs_fshift);
+	sb->s_op = &ufs_super_ops;
+	sb->dq_op = NULL; /***/
+	sb->s_magic = fs32_to_cpu(sb, usb3->fs_magic);
+
+	uspi->s_sblkno = fs32_to_cpu(sb, usb1->fs_sblkno);
+	uspi->s_cblkno = fs32_to_cpu(sb, usb1->fs_cblkno);
+	uspi->s_iblkno = fs32_to_cpu(sb, usb1->fs_iblkno);
+	uspi->s_dblkno = fs32_to_cpu(sb, usb1->fs_dblkno);
+	uspi->s_cgoffset = fs32_to_cpu(sb, usb1->fs_cgoffset);
+	uspi->s_cgmask = fs32_to_cpu(sb, usb1->fs_cgmask);
+	uspi->s_size = fs32_to_cpu(sb, usb1->fs_size);
+	uspi->s_dsize = fs32_to_cpu(sb, usb1->fs_dsize);
+	uspi->s_ncg = fs32_to_cpu(sb, usb1->fs_ncg);
+	/* s_bsize already set */
+	/* s_fsize already set */
+	uspi->s_fpb = fs32_to_cpu(sb, usb1->fs_frag);
+	uspi->s_minfree = fs32_to_cpu(sb, usb1->fs_minfree);
+	uspi->s_bmask = fs32_to_cpu(sb, usb1->fs_bmask);
+	uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask);
+	uspi->s_bshift = fs32_to_cpu(sb, usb1->fs_bshift);
+	uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift);
+	uspi->s_fpbshift = fs32_to_cpu(sb, usb1->fs_fragshift);
+	uspi->s_fsbtodb = fs32_to_cpu(sb, usb1->fs_fsbtodb);
+	/* s_sbsize already set */
+	uspi->s_csmask = fs32_to_cpu(sb, usb1->fs_csmask);
+	uspi->s_csshift = fs32_to_cpu(sb, usb1->fs_csshift);
+	uspi->s_nindir = fs32_to_cpu(sb, usb1->fs_nindir);
+	uspi->s_inopb = fs32_to_cpu(sb, usb1->fs_inopb);
+	uspi->s_nspf = fs32_to_cpu(sb, usb1->fs_nspf);
+	uspi->s_npsect = ufs_get_fs_npsect(sb, usb1, usb3);
+	uspi->s_interleave = fs32_to_cpu(sb, usb1->fs_interleave);
+	uspi->s_trackskew = fs32_to_cpu(sb, usb1->fs_trackskew);
+	uspi->s_csaddr = fs32_to_cpu(sb, usb1->fs_csaddr);
+	uspi->s_cssize = fs32_to_cpu(sb, usb1->fs_cssize);
+	uspi->s_cgsize = fs32_to_cpu(sb, usb1->fs_cgsize);
+	uspi->s_ntrak = fs32_to_cpu(sb, usb1->fs_ntrak);
+	uspi->s_nsect = fs32_to_cpu(sb, usb1->fs_nsect);
+	uspi->s_spc = fs32_to_cpu(sb, usb1->fs_spc);
+	uspi->s_ipg = fs32_to_cpu(sb, usb1->fs_ipg);
+	uspi->s_fpg = fs32_to_cpu(sb, usb1->fs_fpg);
+	uspi->s_cpc = fs32_to_cpu(sb, usb2->fs_cpc);
+	uspi->s_contigsumsize = fs32_to_cpu(sb, usb3->fs_u2.fs_44.fs_contigsumsize);
+	uspi->s_qbmask = ufs_get_fs_qbmask(sb, usb3);
+	uspi->s_qfmask = ufs_get_fs_qfmask(sb, usb3);
+	uspi->s_postblformat = fs32_to_cpu(sb, usb3->fs_postblformat);
+	uspi->s_nrpos = fs32_to_cpu(sb, usb3->fs_nrpos);
+	uspi->s_postbloff = fs32_to_cpu(sb, usb3->fs_postbloff);
+	uspi->s_rotbloff = fs32_to_cpu(sb, usb3->fs_rotbloff);
+
+	/*
+	 * Compute another frequently used values
+	 */
+	uspi->s_fpbmask = uspi->s_fpb - 1;
+	uspi->s_apbshift = uspi->s_bshift - 2;
+	uspi->s_2apbshift = uspi->s_apbshift * 2;
+	uspi->s_3apbshift = uspi->s_apbshift * 3;
+	uspi->s_apb = 1 << uspi->s_apbshift;
+	uspi->s_2apb = 1 << uspi->s_2apbshift;
+	uspi->s_3apb = 1 << uspi->s_3apbshift;
+	uspi->s_apbmask = uspi->s_apb - 1;
+	uspi->s_nspfshift = uspi->s_fshift - UFS_SECTOR_BITS;
+	uspi->s_nspb = uspi->s_nspf << uspi->s_fpbshift;
+	uspi->s_inopf = uspi->s_inopb >> uspi->s_fpbshift;
+	uspi->s_bpf = uspi->s_fsize << 3;
+	uspi->s_bpfshift = uspi->s_fshift + 3;
+	uspi->s_bpfmask = uspi->s_bpf - 1;
+	if ((sb->u.ufs_sb.s_mount_opt & UFS_MOUNT_UFSTYPE) ==
+	    UFS_MOUNT_UFSTYPE_44BSD)
+		uspi->s_maxsymlinklen =
+		    fs32_to_cpu(sb, usb3->fs_u2.fs_44.fs_maxsymlinklen);
+	
+	sb->u.ufs_sb.s_flags = flags;
+
+	inode = iget(sb, UFS_ROOTINO);
+	if (!inode || is_bad_inode(inode))
+		goto failed;
+	sb->s_root = d_alloc_root(inode);
+	if (!sb->s_root)
+		goto dalloc_failed;
+
+
+	/*
+	 * Read cylinder group structures
+	 */
+	if (!(sb->s_flags & MS_RDONLY))
+		if (!ufs_read_cylinder_structures(sb))
+			goto failed;
+
+	UFSD(("EXIT\n"))
+	return(sb);
+
+dalloc_failed:
+	iput(inode);
+failed:
+	if (ubh) ubh_brelse_uspi (uspi);
+	if (uspi) kfree (uspi);
+	UFSD(("EXIT (FAILED)\n"))
+	return(NULL);
+}
+
+void ufs_write_super (struct super_block * sb) {
+	struct ufs_sb_private_info * uspi;
+	struct ufs_super_block_first * usb1;
+	struct ufs_super_block_third * usb3;
+	unsigned flags;
+
+	UFSD(("ENTER\n"))
+	flags = sb->u.ufs_sb.s_flags;
+	uspi = sb->u.ufs_sb.s_uspi;
+	usb1 = ubh_get_usb_first(USPI_UBH);
+	usb3 = ubh_get_usb_third(USPI_UBH);
+
+	if (!(sb->s_flags & MS_RDONLY)) {
+		usb1->fs_time = cpu_to_fs32(sb, CURRENT_TIME);
+		if ((flags & UFS_ST_MASK) == UFS_ST_SUN 
+		  || (flags & UFS_ST_MASK) == UFS_ST_SUNx86)
+			ufs_set_fs_state(sb, usb1, usb3,
+					UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time));
+		ubh_mark_buffer_dirty (USPI_UBH);
+	}
+	sb->s_dirt = 0;
+	UFSD(("EXIT\n"))
+}
+
+void ufs_put_super (struct super_block * sb)
+{
+	struct ufs_sb_private_info * uspi;
+		
+	UFSD(("ENTER\n"))
+
+	uspi = sb->u.ufs_sb.s_uspi;
+
+	if (!(sb->s_flags & MS_RDONLY))
+		ufs_put_cylinder_structures (sb);
+	
+	ubh_brelse_uspi (uspi);
+	kfree (sb->u.ufs_sb.s_uspi);
+	return;
+}
+
+
+int ufs_remount (struct super_block * sb, int * mount_flags, char * data)
+{
+	struct ufs_sb_private_info * uspi;
+	struct ufs_super_block_first * usb1;
+	struct ufs_super_block_third * usb3;
+	unsigned new_mount_opt, ufstype;
+	unsigned flags;
+	
+	uspi = sb->u.ufs_sb.s_uspi;
+	flags = sb->u.ufs_sb.s_flags;
+	usb1 = ubh_get_usb_first(USPI_UBH);
+	usb3 = ubh_get_usb_third(USPI_UBH);
+	
+	/*
+	 * Allow the "check" option to be passed as a remount option.
+	 * It is not possible to change ufstype option during remount
+	 */
+	ufstype = sb->u.ufs_sb.s_mount_opt & UFS_MOUNT_UFSTYPE;
+	new_mount_opt = 0;
+	ufs_set_opt (new_mount_opt, ONERROR_LOCK);
+	if (!ufs_parse_options (data, &new_mount_opt))
+		return -EINVAL;
+	if (!(new_mount_opt & UFS_MOUNT_UFSTYPE)) {
+		new_mount_opt |= ufstype;
+	}
+	else if ((new_mount_opt & UFS_MOUNT_UFSTYPE) != ufstype) {
+		printk("ufstype can't be changed during remount\n");
+		return -EINVAL;
+	}
+
+	if ((*mount_flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) {
+		sb->u.ufs_sb.s_mount_opt = new_mount_opt;
+		return 0;
+	}
+	
+	/*
+	 * fs was mouted as rw, remounting ro
+	 */
+	if (*mount_flags & MS_RDONLY) {
+		ufs_put_cylinder_structures(sb);
+		usb1->fs_time = cpu_to_fs32(sb, CURRENT_TIME);
+		if ((flags & UFS_ST_MASK) == UFS_ST_SUN
+		  || (flags & UFS_ST_MASK) == UFS_ST_SUNx86) 
+			ufs_set_fs_state(sb, usb1, usb3,
+				UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time));
+		ubh_mark_buffer_dirty (USPI_UBH);
+		sb->s_dirt = 0;
+		sb->s_flags |= MS_RDONLY;
+	}
+	/*
+	 * fs was mounted as ro, remounting rw
+	 */
+	else {
+#ifndef CONFIG_UFS_FS_WRITE
+		printk("ufs was compiled with read-only support, "
+		"can't be mounted as read-write\n");
+		return -EINVAL;
+#else
+		if (ufstype != UFS_MOUNT_UFSTYPE_SUN && 
+		    ufstype != UFS_MOUNT_UFSTYPE_44BSD &&
+		    ufstype != UFS_MOUNT_UFSTYPE_SUNx86) {
+			printk("this ufstype is read-only supported\n");
+			return -EINVAL;
+		}
+		if (!ufs_read_cylinder_structures (sb)) {
+			printk("failed during remounting\n");
+			return -EPERM;
+		}
+		sb->s_flags &= ~MS_RDONLY;
+#endif
+	}
+	sb->u.ufs_sb.s_mount_opt = new_mount_opt;
+	return 0;
+}
+
+int ufs_statfs (struct super_block * sb, struct statfs * buf)
+{
+	struct ufs_sb_private_info * uspi;
+	struct ufs_super_block_first * usb1;
+
+	uspi = sb->u.ufs_sb.s_uspi;
+	usb1 = ubh_get_usb_first (USPI_UBH);
+	
+	buf->f_type = UFS_MAGIC;
+	buf->f_bsize = sb->s_blocksize;
+	buf->f_blocks = uspi->s_dsize;
+	buf->f_bfree = ufs_blkstofrags(fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree)) +
+		fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree);
+	buf->f_bavail = (buf->f_bfree > ((buf->f_blocks / 100) * uspi->s_minfree))
+		? (buf->f_bfree - ((buf->f_blocks / 100) * uspi->s_minfree)) : 0;
+	buf->f_files = uspi->s_ncg * uspi->s_ipg;
+	buf->f_ffree = fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree);
+	buf->f_namelen = UFS_MAXNAMLEN;
+	return 0;
+}
+
+static struct super_operations ufs_super_ops = {
+	read_inode:	ufs_read_inode,
+	write_inode:	ufs_write_inode,
+	delete_inode:	ufs_delete_inode,
+	put_super:	ufs_put_super,
+	write_super:	ufs_write_super,
+	statfs:		ufs_statfs,
+	remount_fs:	ufs_remount,
+};
+
+static DECLARE_FSTYPE_DEV(ufs_fs_type, "ufs", ufs_read_super);
+
+static int __init init_ufs_fs(void)
+{
+	return register_filesystem(&ufs_fs_type);
+}
+
+static void __exit exit_ufs_fs(void)
+{
+	unregister_filesystem(&ufs_fs_type);
+}
+
+EXPORT_NO_SYMBOLS;
+
+module_init(init_ufs_fs)
+module_exit(exit_ufs_fs)
+MODULE_LICENSE("GPL");
diff --git a/fs/ufs/swab.h b/fs/ufs/swab.h
new file mode 100644
index 00000000000000..4fc781eba71f6c
--- /dev/null
+++ b/fs/ufs/swab.h
@@ -0,0 +1,133 @@
+/*
+ *  linux/fs/ufs/swab.h
+ *
+ * Copyright (C) 1997, 1998 Francois-Rene Rideau <fare@tunes.org>
+ * Copyright (C) 1998 Jakub Jelinek <jj@ultra.linux.cz>
+ * Copyright (C) 2001 Christoph Hellwig <hch@infradead.org>
+ */
+
+#ifndef _UFS_SWAB_H
+#define _UFS_SWAB_H
+
+/*
+ * Notes:
+ *    HERE WE ASSUME EITHER BIG OR LITTLE ENDIAN UFSes
+ *    in case there are ufs implementations that have strange bytesexes,
+ *    you'll need to modify code here as well as in ufs_super.c and ufs_fs.h
+ *    to support them.
+ */
+
+enum {
+	BYTESEX_LE,
+	BYTESEX_BE
+};
+
+static __inline u64
+fs64_to_cpu(struct super_block *sbp, u64 n)
+{
+	if (sbp->u.ufs_sb.s_bytesex == BYTESEX_LE)
+		return le64_to_cpu(n);
+	else
+		return be64_to_cpu(n);
+}
+
+static __inline u64
+cpu_to_fs64(struct super_block *sbp, u64 n)
+{
+	if (sbp->u.ufs_sb.s_bytesex == BYTESEX_LE)
+		return cpu_to_le64(n);
+	else
+		return cpu_to_be64(n);
+}
+
+static __inline u32
+fs64_add(struct super_block *sbp, u32 *n, int d)
+{
+	if (sbp->u.ufs_sb.s_bytesex == BYTESEX_LE)
+		return *n = cpu_to_le64(le64_to_cpu(*n)+d);
+	else
+		return *n = cpu_to_be64(be64_to_cpu(*n)+d);
+}
+
+static __inline u32
+fs64_sub(struct super_block *sbp, u32 *n, int d)
+{
+	if (sbp->u.ufs_sb.s_bytesex == BYTESEX_LE)
+		return *n = cpu_to_le64(le64_to_cpu(*n)-d);
+	else
+		return *n = cpu_to_be64(be64_to_cpu(*n)-d);
+}
+
+static __inline u32
+fs32_to_cpu(struct super_block *sbp, u32 n)
+{
+	if (sbp->u.ufs_sb.s_bytesex == BYTESEX_LE)
+		return le32_to_cpu(n);
+	else
+		return be32_to_cpu(n);
+}
+
+static __inline u32
+cpu_to_fs32(struct super_block *sbp, u32 n)
+{
+	if (sbp->u.ufs_sb.s_bytesex == BYTESEX_LE)
+		return cpu_to_le32(n);
+	else
+		return cpu_to_be32(n);
+}
+
+static __inline u32
+fs32_add(struct super_block *sbp, u32 *n, int d)
+{
+	if (sbp->u.ufs_sb.s_bytesex == BYTESEX_LE)
+		return *n = cpu_to_le32(le32_to_cpu(*n)+d);
+	else
+		return *n = cpu_to_be32(be32_to_cpu(*n)+d);
+}
+
+static __inline u32
+fs32_sub(struct super_block *sbp, u32 *n, int d)
+{
+	if (sbp->u.ufs_sb.s_bytesex == BYTESEX_LE)
+		return *n = cpu_to_le32(le32_to_cpu(*n)-d);
+	else
+		return *n = cpu_to_be32(be32_to_cpu(*n)-d);
+}
+
+static __inline u16
+fs16_to_cpu(struct super_block *sbp, u16 n)
+{
+	if (sbp->u.ufs_sb.s_bytesex == BYTESEX_LE)
+		return le16_to_cpu(n);
+	else
+		return be16_to_cpu(n);
+}
+
+static __inline u16
+cpu_to_fs16(struct super_block *sbp, u16 n)
+{
+	if (sbp->u.ufs_sb.s_bytesex == BYTESEX_LE)
+		return cpu_to_le16(n);
+	else
+		return cpu_to_be16(n);
+}
+
+static __inline u16
+fs16_add(struct super_block *sbp, u16 *n, int d)
+{
+	if (sbp->u.ufs_sb.s_bytesex == BYTESEX_LE)
+		return *n = cpu_to_le16(le16_to_cpu(*n)+d);
+	else
+		return *n = cpu_to_be16(be16_to_cpu(*n)+d);
+}
+
+static __inline u16
+fs16_sub(struct super_block *sbp, u16 *n, int d)
+{
+	if (sbp->u.ufs_sb.s_bytesex == BYTESEX_LE)
+		return *n = cpu_to_le16(le16_to_cpu(*n)-d);
+	else
+		return *n = cpu_to_be16(be16_to_cpu(*n)-d);
+}
+
+#endif /* _UFS_SWAB_H */
diff --git a/fs/ufs/symlink.c b/fs/ufs/symlink.c
new file mode 100644
index 00000000000000..59a44e22e94b1b
--- /dev/null
+++ b/fs/ufs/symlink.c
@@ -0,0 +1,45 @@
+/*
+ *  linux/fs/ufs/symlink.c
+ *
+ * Only fast symlinks left here - the rest is done by generic code. AV, 1999
+ *
+ * Copyright (C) 1998
+ * Daniel Pirkl <daniel.pirkl@emai.cz>
+ * Charles University, Faculty of Mathematics and Physics
+ *
+ *  from
+ *
+ *  linux/fs/ext2/symlink.c
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ *  from
+ *
+ *  linux/fs/minix/symlink.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  ext2 symlink handling code
+ */
+
+#include <linux/fs.h>
+
+static int ufs_readlink(struct dentry *dentry, char *buffer, int buflen)
+{
+	char *s = (char *)dentry->d_inode->u.ufs_i.i_u1.i_symlink;
+	return vfs_readlink(dentry, buffer, buflen, s);
+}
+
+static int ufs_follow_link(struct dentry *dentry, struct nameidata *nd)
+{
+	char *s = (char *)dentry->d_inode->u.ufs_i.i_u1.i_symlink;
+	return vfs_follow_link(nd, s);
+}
+
+struct inode_operations ufs_fast_symlink_inode_operations = {
+	readlink:	ufs_readlink,
+	follow_link:	ufs_follow_link,
+};
diff --git a/fs/ufs/truncate.c b/fs/ufs/truncate.c
new file mode 100644
index 00000000000000..6fd8df56254737
--- /dev/null
+++ b/fs/ufs/truncate.c
@@ -0,0 +1,466 @@
+/*
+ *  linux/fs/ufs/truncate.c
+ *
+ * Copyright (C) 1998
+ * Daniel Pirkl <daniel.pirkl@email.cz>
+ * Charles University, Faculty of Mathematics and Physics
+ *
+ *  from
+ *
+ *  linux/fs/ext2/truncate.c
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ *  from
+ *
+ *  linux/fs/minix/truncate.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  Big-endian to little-endian byte-swapping/bitmaps by
+ *        David S. Miller (davem@caip.rutgers.edu), 1995
+ */
+
+/*
+ * Real random numbers for secure rm added 94/02/18
+ * Idea from Pierre del Perugia <delperug@gla.ecoledoc.ibp.fr>
+ */
+
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/ufs_fs.h>
+#include <linux/fcntl.h>
+#include <linux/sched.h>
+#include <linux/stat.h>
+#include <linux/locks.h>
+#include <linux/string.h>
+
+#include "swab.h"
+#include "util.h"
+
+#undef UFS_TRUNCATE_DEBUG
+
+#ifdef UFS_TRUNCATE_DEBUG
+#define UFSD(x) printk("(%s, %d), %s: ", __FILE__, __LINE__, __FUNCTION__); printk x;
+#else
+#define UFSD(x)
+#endif
+ 
+/*
+ * Secure deletion currently doesn't work. It interacts very badly
+ * with buffers shared with memory mappings, and for that reason
+ * can't be done in the truncate() routines. It should instead be
+ * done separately in "release()" before calling the truncate routines
+ * that will release the actual file blocks.
+ *
+ *		Linus
+ */
+
+#define DIRECT_BLOCK ((inode->i_size + uspi->s_bsize - 1) >> uspi->s_bshift)
+#define DIRECT_FRAGMENT ((inode->i_size + uspi->s_fsize - 1) >> uspi->s_fshift)
+
+#define DATA_BUFFER_USED(bh) \
+	(atomic_read(&bh->b_count)>1 || buffer_locked(bh))
+
+static int ufs_trunc_direct (struct inode * inode)
+{
+	struct super_block * sb;
+	struct ufs_sb_private_info * uspi;
+	struct buffer_head * bh;
+	u32 * p;
+	unsigned frag1, frag2, frag3, frag4, block1, block2;
+	unsigned frag_to_free, free_count;
+	unsigned i, j, tmp;
+	int retry;
+	
+	UFSD(("ENTER\n"))
+
+	sb = inode->i_sb;
+	uspi = sb->u.ufs_sb.s_uspi;
+	
+	frag_to_free = 0;
+	free_count = 0;
+	retry = 0;
+	
+	frag1 = DIRECT_FRAGMENT;
+	frag4 = min_t(u32, UFS_NDIR_FRAGMENT, inode->u.ufs_i.i_lastfrag);
+	frag2 = ((frag1 & uspi->s_fpbmask) ? ((frag1 | uspi->s_fpbmask) + 1) : frag1);
+	frag3 = frag4 & ~uspi->s_fpbmask;
+	block1 = block2 = 0;
+	if (frag2 > frag3) {
+		frag2 = frag4;
+		frag3 = frag4 = 0;
+	}
+	else if (frag2 < frag3) {
+		block1 = ufs_fragstoblks (frag2);
+		block2 = ufs_fragstoblks (frag3);
+	}
+
+	UFSD(("frag1 %u, frag2 %u, block1 %u, block2 %u, frag3 %u, frag4 %u\n", frag1, frag2, block1, block2, frag3, frag4))
+
+	if (frag1 >= frag2)
+		goto next1;		
+
+	/*
+	 * Free first free fragments
+	 */
+	p = inode->u.ufs_i.i_u1.i_data + ufs_fragstoblks (frag1);
+	tmp = fs32_to_cpu(sb, *p);
+	if (!tmp )
+		ufs_panic (sb, "ufs_trunc_direct", "internal error");
+	frag1 = ufs_fragnum (frag1);
+	frag2 = ufs_fragnum (frag2);
+	for (j = frag1; j < frag2; j++) {
+		bh = sb_get_hash_table (sb, tmp + j);
+		if ((bh && DATA_BUFFER_USED(bh)) || tmp != fs32_to_cpu(sb, *p)) {
+			retry = 1;
+			brelse (bh);
+			goto next1;
+		}
+		bforget (bh);
+	}
+	inode->i_blocks -= (frag2-frag1) << uspi->s_nspfshift;
+	mark_inode_dirty(inode);
+	ufs_free_fragments (inode, tmp + frag1, frag2 - frag1);
+	frag_to_free = tmp + frag1;
+
+next1:
+	/*
+	 * Free whole blocks
+	 */
+	for (i = block1 ; i < block2; i++) {
+		p = inode->u.ufs_i.i_u1.i_data + i;
+		tmp = fs32_to_cpu(sb, *p);
+		if (!tmp)
+			continue;
+		for (j = 0; j < uspi->s_fpb; j++) {
+			bh = sb_get_hash_table(sb, tmp + j);
+			if ((bh && DATA_BUFFER_USED(bh)) || tmp != fs32_to_cpu(sb, *p)) {
+				retry = 1;
+				brelse (bh);
+				goto next2;
+			}
+			bforget (bh);
+		}
+		*p = 0;
+		inode->i_blocks -= uspi->s_nspb;
+		mark_inode_dirty(inode);
+		if (free_count == 0) {
+			frag_to_free = tmp;
+			free_count = uspi->s_fpb;
+		} else if (free_count > 0 && frag_to_free == tmp - free_count)
+			free_count += uspi->s_fpb;
+		else {
+			ufs_free_blocks (inode, frag_to_free, free_count);
+			frag_to_free = tmp;
+			free_count = uspi->s_fpb;
+		}
+next2:;
+	}
+	
+	if (free_count > 0)
+		ufs_free_blocks (inode, frag_to_free, free_count);
+
+	if (frag3 >= frag4)
+		goto next3;
+
+	/*
+	 * Free last free fragments
+	 */
+	p = inode->u.ufs_i.i_u1.i_data + ufs_fragstoblks (frag3);
+	tmp = fs32_to_cpu(sb, *p);
+	if (!tmp )
+		ufs_panic(sb, "ufs_truncate_direct", "internal error");
+	frag4 = ufs_fragnum (frag4);
+	for (j = 0; j < frag4; j++) {
+		bh = sb_get_hash_table (sb, tmp + j);
+		if ((bh && DATA_BUFFER_USED(bh)) || tmp != fs32_to_cpu(sb, *p)) {
+			retry = 1;
+			brelse (bh);
+			goto next1;
+		}
+		bforget (bh);
+	}
+	*p = 0;
+	inode->i_blocks -= frag4 << uspi->s_nspfshift;
+	mark_inode_dirty(inode);
+	ufs_free_fragments (inode, tmp, frag4);
+ next3:
+
+	UFSD(("EXIT\n"))
+	return retry;
+}
+
+
+static int ufs_trunc_indirect (struct inode * inode, unsigned offset, u32 * p)
+{
+	struct super_block * sb;
+	struct ufs_sb_private_info * uspi;
+	struct ufs_buffer_head * ind_ubh;
+	struct buffer_head * bh;
+	u32 * ind;
+	unsigned indirect_block, i, j, tmp;
+	unsigned frag_to_free, free_count;
+	int retry;
+
+	UFSD(("ENTER\n"))
+		
+	sb = inode->i_sb;
+	uspi = sb->u.ufs_sb.s_uspi;
+
+	frag_to_free = 0;
+	free_count = 0;
+	retry = 0;
+	
+	tmp = fs32_to_cpu(sb, *p);
+	if (!tmp)
+		return 0;
+	ind_ubh = ubh_bread(sb, tmp, uspi->s_bsize);
+	if (tmp != fs32_to_cpu(sb, *p)) {
+		ubh_brelse (ind_ubh);
+		return 1;
+	}
+	if (!ind_ubh) {
+		*p = 0;
+		return 0;
+	}
+
+	indirect_block = (DIRECT_BLOCK > offset) ? (DIRECT_BLOCK - offset) : 0;
+	for (i = indirect_block; i < uspi->s_apb; i++) {
+		ind = ubh_get_addr32 (ind_ubh, i);
+		tmp = fs32_to_cpu(sb, *ind);
+		if (!tmp)
+			continue;
+		for (j = 0; j < uspi->s_fpb; j++) {
+			bh = sb_get_hash_table(sb, tmp + j);
+			if ((bh && DATA_BUFFER_USED(bh)) || tmp != fs32_to_cpu(sb, *ind)) {
+				retry = 1;
+				brelse (bh);
+				goto next;
+			}
+			bforget (bh);
+		}	
+		*ind = 0;
+		ubh_mark_buffer_dirty(ind_ubh);
+		if (free_count == 0) {
+			frag_to_free = tmp;
+			free_count = uspi->s_fpb;
+		} else if (free_count > 0 && frag_to_free == tmp - free_count)
+			free_count += uspi->s_fpb;
+		else {
+			ufs_free_blocks (inode, frag_to_free, free_count);
+			frag_to_free = tmp;
+			free_count = uspi->s_fpb;
+		}
+		inode->i_blocks -= uspi->s_nspb;
+		mark_inode_dirty(inode);
+next:;
+	}
+
+	if (free_count > 0) {
+		ufs_free_blocks (inode, frag_to_free, free_count);
+	}
+	for (i = 0; i < uspi->s_apb; i++)
+		if (*ubh_get_addr32(ind_ubh,i))
+			break;
+	if (i >= uspi->s_apb) {
+		if (ubh_max_bcount(ind_ubh) != 1) {
+			retry = 1;
+		}
+		else {
+			tmp = fs32_to_cpu(sb, *p);
+			*p = 0;
+			inode->i_blocks -= uspi->s_nspb;
+			mark_inode_dirty(inode);
+			ufs_free_blocks (inode, tmp, uspi->s_fpb);
+			ubh_bforget(ind_ubh);
+			ind_ubh = NULL;
+		}
+	}
+	if (IS_SYNC(inode) && ind_ubh && ubh_buffer_dirty(ind_ubh)) {
+		ubh_ll_rw_block (WRITE, 1, &ind_ubh);
+		ubh_wait_on_buffer (ind_ubh);
+	}
+	ubh_brelse (ind_ubh);
+	
+	UFSD(("EXIT\n"))
+	
+	return retry;
+}
+
+static int ufs_trunc_dindirect (struct inode * inode, unsigned offset, u32 * p)
+{
+	struct super_block * sb;
+	struct ufs_sb_private_info * uspi;
+	struct ufs_buffer_head * dind_bh;
+	unsigned i, tmp, dindirect_block;
+	u32 * dind;
+	int retry = 0;
+	
+	UFSD(("ENTER\n"))
+	
+	sb = inode->i_sb;
+	uspi = sb->u.ufs_sb.s_uspi;
+
+	dindirect_block = (DIRECT_BLOCK > offset) 
+		? ((DIRECT_BLOCK - offset) >> uspi->s_apbshift) : 0;
+	retry = 0;
+	
+	tmp = fs32_to_cpu(sb, *p);
+	if (!tmp)
+		return 0;
+	dind_bh = ubh_bread(sb, tmp, uspi->s_bsize);
+	if (tmp != fs32_to_cpu(sb, *p)) {
+		ubh_brelse (dind_bh);
+		return 1;
+	}
+	if (!dind_bh) {
+		*p = 0;
+		return 0;
+	}
+
+	for (i = dindirect_block ; i < uspi->s_apb ; i++) {
+		dind = ubh_get_addr32 (dind_bh, i);
+		tmp = fs32_to_cpu(sb, *dind);
+		if (!tmp)
+			continue;
+		retry |= ufs_trunc_indirect (inode, offset + (i << uspi->s_apbshift), dind);
+		ubh_mark_buffer_dirty(dind_bh);
+	}
+
+	for (i = 0; i < uspi->s_apb; i++)
+		if (*ubh_get_addr32 (dind_bh, i))
+			break;
+	if (i >= uspi->s_apb) {
+		if (ubh_max_bcount(dind_bh) != 1)
+			retry = 1;
+		else {
+			tmp = fs32_to_cpu(sb, *p);
+			*p = 0;
+			inode->i_blocks -= uspi->s_nspb;
+			mark_inode_dirty(inode);
+			ufs_free_blocks (inode, tmp, uspi->s_fpb);
+			ubh_bforget(dind_bh);
+			dind_bh = NULL;
+		}
+	}
+	if (IS_SYNC(inode) && dind_bh && ubh_buffer_dirty(dind_bh)) {
+		ubh_ll_rw_block (WRITE, 1, &dind_bh);
+		ubh_wait_on_buffer (dind_bh);
+	}
+	ubh_brelse (dind_bh);
+	
+	UFSD(("EXIT\n"))
+	
+	return retry;
+}
+
+static int ufs_trunc_tindirect (struct inode * inode)
+{
+	struct super_block * sb;
+	struct ufs_sb_private_info * uspi;
+	struct ufs_buffer_head * tind_bh;
+	unsigned tindirect_block, tmp, i;
+	u32 * tind, * p;
+	int retry;
+	
+	UFSD(("ENTER\n"))
+
+	sb = inode->i_sb;
+	uspi = sb->u.ufs_sb.s_uspi;
+	retry = 0;
+	
+	tindirect_block = (DIRECT_BLOCK > (UFS_NDADDR + uspi->s_apb + uspi->s_2apb))
+		? ((DIRECT_BLOCK - UFS_NDADDR - uspi->s_apb - uspi->s_2apb) >> uspi->s_2apbshift) : 0;
+	p = inode->u.ufs_i.i_u1.i_data + UFS_TIND_BLOCK;
+	if (!(tmp = fs32_to_cpu(sb, *p)))
+		return 0;
+	tind_bh = ubh_bread (sb, tmp, uspi->s_bsize);
+	if (tmp != fs32_to_cpu(sb, *p)) {
+		ubh_brelse (tind_bh);
+		return 1;
+	}
+	if (!tind_bh) {
+		*p = 0;
+		return 0;
+	}
+
+	for (i = tindirect_block ; i < uspi->s_apb ; i++) {
+		tind = ubh_get_addr32 (tind_bh, i);
+		retry |= ufs_trunc_dindirect(inode, UFS_NDADDR + 
+			uspi->s_apb + ((i + 1) << uspi->s_2apbshift), tind);
+		ubh_mark_buffer_dirty(tind_bh);
+	}
+	for (i = 0; i < uspi->s_apb; i++)
+		if (*ubh_get_addr32 (tind_bh, i))
+			break;
+	if (i >= uspi->s_apb) {
+		if (ubh_max_bcount(tind_bh) != 1)
+			retry = 1;
+		else {
+			tmp = fs32_to_cpu(sb, *p);
+			*p = 0;
+			inode->i_blocks -= uspi->s_nspb;
+			mark_inode_dirty(inode);
+			ufs_free_blocks (inode, tmp, uspi->s_fpb);
+			ubh_bforget(tind_bh);
+			tind_bh = NULL;
+		}
+	}
+	if (IS_SYNC(inode) && tind_bh && ubh_buffer_dirty(tind_bh)) {
+		ubh_ll_rw_block (WRITE, 1, &tind_bh);
+		ubh_wait_on_buffer (tind_bh);
+	}
+	ubh_brelse (tind_bh);
+	
+	UFSD(("EXIT\n"))
+	return retry;
+}
+		
+void ufs_truncate (struct inode * inode)
+{
+	struct super_block * sb;
+	struct ufs_sb_private_info * uspi;
+	struct buffer_head * bh;
+	unsigned offset;
+	int err, retry;
+	
+	UFSD(("ENTER\n"))
+	sb = inode->i_sb;
+	uspi = sb->u.ufs_sb.s_uspi;
+
+	if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)))
+		return;
+	if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
+		return;
+	while (1) {
+		retry = ufs_trunc_direct(inode);
+		retry |= ufs_trunc_indirect (inode, UFS_IND_BLOCK,
+			(u32 *) &inode->u.ufs_i.i_u1.i_data[UFS_IND_BLOCK]);
+		retry |= ufs_trunc_dindirect (inode, UFS_IND_BLOCK + uspi->s_apb,
+			(u32 *) &inode->u.ufs_i.i_u1.i_data[UFS_DIND_BLOCK]);
+		retry |= ufs_trunc_tindirect (inode);
+		if (!retry)
+			break;
+		if (IS_SYNC(inode) && (inode->i_state & I_DIRTY))
+			ufs_sync_inode (inode);
+		run_task_queue(&tq_disk);
+		yield();
+	}
+	offset = inode->i_size & uspi->s_fshift;
+	if (offset) {
+		bh = ufs_bread (inode, inode->i_size >> uspi->s_fshift, 0, &err);
+		if (bh) {
+			memset (bh->b_data + offset, 0, uspi->s_fsize - offset);
+			mark_buffer_dirty (bh);
+			brelse (bh);
+		}
+	}
+	inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+	inode->u.ufs_i.i_lastfrag = DIRECT_FRAGMENT;
+	mark_inode_dirty(inode);
+	UFSD(("EXIT\n"))
+}
diff --git a/fs/ufs/util.c b/fs/ufs/util.c
new file mode 100644
index 00000000000000..065ebb2f8e2c11
--- /dev/null
+++ b/fs/ufs/util.c
@@ -0,0 +1,196 @@
+/*
+ *  linux/fs/ufs/util.c
+ *
+ * Copyright (C) 1998
+ * Daniel Pirkl <daniel.pirkl@email.cz>
+ * Charles University, Faculty of Mathematics and Physics
+ */
+ 
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/locks.h>
+
+#include "swab.h"
+#include "util.h"
+
+#undef UFS_UTILS_DEBUG
+
+#ifdef UFS_UTILS_DEBUG
+#define UFSD(x) printk("(%s, %d), %s: ", __FILE__, __LINE__, __FUNCTION__); printk x;
+#else
+#define UFSD(x)
+#endif
+
+
+struct ufs_buffer_head * _ubh_bread_ (struct ufs_sb_private_info * uspi,
+	struct super_block *sb, unsigned fragment, unsigned size)
+{
+	struct ufs_buffer_head * ubh;
+	unsigned i, j, count;
+	if (size & ~uspi->s_fmask)
+		return NULL;
+	count = size >> uspi->s_fshift;
+	if (count > UFS_MAXFRAG)
+		return NULL;
+	ubh = (struct ufs_buffer_head *)
+		kmalloc (sizeof (struct ufs_buffer_head), GFP_KERNEL);
+	if (!ubh)
+		return NULL;
+	ubh->fragment = fragment;
+	ubh->count = count;
+	for (i = 0; i < count; i++)
+		if (!(ubh->bh[i] = sb_bread(sb, fragment + i)))
+			goto failed;
+	for (; i < UFS_MAXFRAG; i++)
+		ubh->bh[i] = NULL;
+	return ubh;
+failed:
+	for (j = 0; j < i; j++)
+		brelse (ubh->bh[j]);
+	kfree(ubh);
+	return NULL;
+}
+
+struct ufs_buffer_head * ubh_bread_uspi (struct ufs_sb_private_info * uspi,
+	struct super_block *sb, unsigned fragment, unsigned size)
+{
+	unsigned i, j, count;
+	if (size & ~uspi->s_fmask)
+		return NULL;
+	count = size >> uspi->s_fshift;
+	if (count <= 0 || count > UFS_MAXFRAG)
+		return NULL;
+	USPI_UBH->fragment = fragment;
+	USPI_UBH->count = count;
+	for (i = 0; i < count; i++)
+		if (!(USPI_UBH->bh[i] = sb_bread(sb, fragment + i)))
+			goto failed;
+	for (; i < UFS_MAXFRAG; i++)
+		USPI_UBH->bh[i] = NULL;
+	return USPI_UBH;
+failed:
+	for (j = 0; j < i; j++)
+		brelse (USPI_UBH->bh[j]);
+	return NULL;
+}
+
+void ubh_brelse (struct ufs_buffer_head * ubh)
+{
+	unsigned i;
+	if (!ubh)
+		return;
+	for (i = 0; i < ubh->count; i++)
+		brelse (ubh->bh[i]);
+	kfree (ubh);
+}
+
+void ubh_brelse_uspi (struct ufs_sb_private_info * uspi)
+{
+	unsigned i;
+	if (!USPI_UBH)
+		return;
+	for ( i = 0; i < USPI_UBH->count; i++ ) {
+		brelse (USPI_UBH->bh[i]);
+		USPI_UBH->bh[i] = NULL;
+	}
+}
+
+void ubh_mark_buffer_dirty (struct ufs_buffer_head * ubh)
+{
+	unsigned i;
+	if (!ubh)
+		return;
+	for ( i = 0; i < ubh->count; i++ )
+		mark_buffer_dirty (ubh->bh[i]);
+}
+
+void ubh_mark_buffer_uptodate (struct ufs_buffer_head * ubh, int flag)
+{
+	unsigned i;
+	if (!ubh)
+		return;
+	for ( i = 0; i < ubh->count; i++ )
+		mark_buffer_uptodate (ubh->bh[i], flag);
+}
+
+void ubh_ll_rw_block (int rw, unsigned nr, struct ufs_buffer_head * ubh[])
+{
+	unsigned i;
+	if (!ubh)
+		return;
+	for ( i = 0; i < nr; i++ )
+		ll_rw_block (rw, ubh[i]->count, ubh[i]->bh);
+}
+
+void ubh_wait_on_buffer (struct ufs_buffer_head * ubh)
+{
+	unsigned i;
+	if (!ubh)
+		return;
+	for ( i = 0; i < ubh->count; i++ )
+		wait_on_buffer (ubh->bh[i]);
+}
+
+unsigned ubh_max_bcount (struct ufs_buffer_head * ubh)
+{
+	unsigned i;
+	unsigned max = 0;
+	if (!ubh)
+		return 0;
+	for ( i = 0; i < ubh->count; i++ ) 
+		if ( atomic_read(&ubh->bh[i]->b_count) > max )
+			max = atomic_read(&ubh->bh[i]->b_count);
+	return max;
+}
+
+void ubh_bforget (struct ufs_buffer_head * ubh)
+{
+	unsigned i;
+	if (!ubh) 
+		return;
+	for ( i = 0; i < ubh->count; i++ ) if ( ubh->bh[i] ) 
+		bforget (ubh->bh[i]);
+}
+ 
+int ubh_buffer_dirty (struct ufs_buffer_head * ubh)
+{
+	unsigned i;
+	unsigned result = 0;
+	if (!ubh)
+		return 0;
+	for ( i = 0; i < ubh->count; i++ )
+		result |= buffer_dirty(ubh->bh[i]);
+	return result;
+}
+
+void _ubh_ubhcpymem_(struct ufs_sb_private_info * uspi, 
+	unsigned char * mem, struct ufs_buffer_head * ubh, unsigned size)
+{
+	unsigned len, bhno;
+	if (size > (ubh->count << uspi->s_fshift))
+		size = ubh->count << uspi->s_fshift;
+	bhno = 0;
+	while (size) {
+		len = min_t(unsigned int, size, uspi->s_fsize);
+		memcpy (mem, ubh->bh[bhno]->b_data, len);
+		mem += uspi->s_fsize;
+		size -= len;
+		bhno++;
+	}
+}
+
+void _ubh_memcpyubh_(struct ufs_sb_private_info * uspi, 
+	struct ufs_buffer_head * ubh, unsigned char * mem, unsigned size)
+{
+	unsigned len, bhno;
+	if (size > (ubh->count << uspi->s_fshift))
+		size = ubh->count << uspi->s_fshift;
+	bhno = 0;
+	while (size) {
+		len = min_t(unsigned int, size, uspi->s_fsize);
+		memcpy (ubh->bh[bhno]->b_data, mem, len);
+		mem += uspi->s_fsize;
+		size -= len;
+		bhno++;
+	}
+}
diff --git a/fs/ufs/util.h b/fs/ufs/util.h
new file mode 100644
index 00000000000000..2e5d4760282941
--- /dev/null
+++ b/fs/ufs/util.h
@@ -0,0 +1,523 @@
+/*
+ *  linux/fs/ufs/util.h
+ *
+ * Copyright (C) 1998 
+ * Daniel Pirkl <daniel.pirkl@email.cz>
+ * Charles University, Faculty of Mathematics and Physics
+ */
+
+#include <linux/fs.h>
+#include "swab.h"
+
+
+/*
+ * some useful macros
+ */
+#define in_range(b,first,len)	((b)>=(first)&&(b)<(first)+(len))
+
+/*
+ * macros used for retyping
+ */
+#define UCPI_UBH ((struct ufs_buffer_head *)ucpi)
+#define USPI_UBH ((struct ufs_buffer_head *)uspi)
+
+
+
+/*
+ * macros used for accesing structures
+ */
+static inline s32
+ufs_get_fs_state(struct super_block *sb, struct ufs_super_block_first *usb1,
+		 struct ufs_super_block_third *usb3)
+{
+	switch (sb->u.ufs_sb.s_flags & UFS_ST_MASK) {
+	case UFS_ST_SUN:
+		return fs32_to_cpu(sb, usb3->fs_u2.fs_sun.fs_state);
+	case UFS_ST_SUNx86:
+		return fs32_to_cpu(sb, usb1->fs_u1.fs_sunx86.fs_state);
+	case UFS_ST_44BSD:
+	default:
+		return fs32_to_cpu(sb, usb3->fs_u2.fs_44.fs_state);
+	}
+}
+
+static inline void
+ufs_set_fs_state(struct super_block *sb, struct ufs_super_block_first *usb1,
+		 struct ufs_super_block_third *usb3, s32 value)
+{
+	switch (sb->u.ufs_sb.s_flags & UFS_ST_MASK) {
+	case UFS_ST_SUN:
+		usb3->fs_u2.fs_sun.fs_state = cpu_to_fs32(sb, value);
+		break;
+	case UFS_ST_SUNx86:
+		usb1->fs_u1.fs_sunx86.fs_state = cpu_to_fs32(sb, value);
+		break;
+	case UFS_ST_44BSD:
+		usb3->fs_u2.fs_44.fs_state = cpu_to_fs32(sb, value);
+		break;
+	}
+}
+
+static inline u32
+ufs_get_fs_npsect(struct super_block *sb, struct ufs_super_block_first *usb1,
+		  struct ufs_super_block_third *usb3)
+{
+	if ((sb->u.ufs_sb.s_flags & UFS_ST_MASK) == UFS_ST_SUNx86)
+		return fs32_to_cpu(sb, usb3->fs_u2.fs_sunx86.fs_npsect);
+	else
+		return fs32_to_cpu(sb, usb1->fs_u1.fs_sun.fs_npsect);
+}
+
+static inline u64
+ufs_get_fs_qbmask(struct super_block *sb, struct ufs_super_block_third *usb3)
+{
+	u64 tmp;
+
+	switch (sb->u.ufs_sb.s_flags & UFS_ST_MASK) {
+	case UFS_ST_SUN:
+		((u32 *)&tmp)[0] = usb3->fs_u2.fs_sun.fs_qbmask[0];
+		((u32 *)&tmp)[1] = usb3->fs_u2.fs_sun.fs_qbmask[1];
+		break;
+	case UFS_ST_SUNx86:
+		((u32 *)&tmp)[0] = usb3->fs_u2.fs_sunx86.fs_qbmask[0];
+		((u32 *)&tmp)[1] = usb3->fs_u2.fs_sunx86.fs_qbmask[1];
+		break;
+	case UFS_ST_44BSD:
+		((u32 *)&tmp)[0] = usb3->fs_u2.fs_44.fs_qbmask[0];
+		((u32 *)&tmp)[1] = usb3->fs_u2.fs_44.fs_qbmask[1];
+		break;
+	}
+
+	return fs64_to_cpu(sb, tmp);
+}
+
+static inline u64
+ufs_get_fs_qfmask(struct super_block *sb, struct ufs_super_block_third *usb3)
+{
+	u64 tmp;
+
+	switch (sb->u.ufs_sb.s_flags & UFS_ST_MASK) {
+	case UFS_ST_SUN:
+		((u32 *)&tmp)[0] = usb3->fs_u2.fs_sun.fs_qfmask[0];
+		((u32 *)&tmp)[1] = usb3->fs_u2.fs_sun.fs_qfmask[1];
+		break;
+	case UFS_ST_SUNx86:
+		((u32 *)&tmp)[0] = usb3->fs_u2.fs_sunx86.fs_qfmask[0];
+		((u32 *)&tmp)[1] = usb3->fs_u2.fs_sunx86.fs_qfmask[1];
+		break;
+	case UFS_ST_44BSD:
+		((u32 *)&tmp)[0] = usb3->fs_u2.fs_44.fs_qfmask[0];
+		((u32 *)&tmp)[1] = usb3->fs_u2.fs_44.fs_qfmask[1];
+		break;
+	}
+
+	return fs64_to_cpu(sb, tmp);
+}
+
+static inline u16
+ufs_get_de_namlen(struct super_block *sb, struct ufs_dir_entry *de)
+{
+	if ((sb->u.ufs_sb.s_flags & UFS_DE_MASK) == UFS_DE_OLD)
+		return fs16_to_cpu(sb, de->d_u.d_namlen);
+	else
+		return de->d_u.d_44.d_namlen; /* XXX this seems wrong */
+}
+
+static inline void
+ufs_set_de_namlen(struct super_block *sb, struct ufs_dir_entry *de, u16 value)
+{
+	if ((sb->u.ufs_sb.s_flags & UFS_DE_MASK) == UFS_DE_OLD)
+		de->d_u.d_namlen = cpu_to_fs16(sb, value);
+	else
+		de->d_u.d_44.d_namlen = value; /* XXX this seems wrong */
+}
+
+static inline void
+ufs_set_de_type(struct super_block *sb, struct ufs_dir_entry *de, int mode)
+{
+	if ((sb->u.ufs_sb.s_flags & UFS_DE_MASK) != UFS_DE_44BSD)
+		return;
+
+	/*
+	 * TODO turn this into a table lookup
+	 */
+	switch (mode & S_IFMT) {
+	case S_IFSOCK:
+		de->d_u.d_44.d_type = DT_SOCK;
+		break;
+	case S_IFLNK:
+		de->d_u.d_44.d_type = DT_LNK;
+		break;
+	case S_IFREG:
+		de->d_u.d_44.d_type = DT_REG;
+		break;
+	case S_IFBLK:
+		de->d_u.d_44.d_type = DT_BLK;
+		break;
+	case S_IFDIR:
+		de->d_u.d_44.d_type = DT_DIR;
+		break;
+	case S_IFCHR:
+		de->d_u.d_44.d_type = DT_CHR;
+		break;
+	case S_IFIFO:
+		de->d_u.d_44.d_type = DT_FIFO;
+		break;
+	default:
+		de->d_u.d_44.d_type = DT_UNKNOWN;
+	}
+}
+
+static inline u32
+ufs_get_inode_uid(struct super_block *sb, struct ufs_inode *inode)
+{
+	switch (sb->u.ufs_sb.s_flags & UFS_UID_MASK) {
+	case UFS_UID_EFT:
+		return fs32_to_cpu(sb, inode->ui_u3.ui_sun.ui_uid);
+	case UFS_UID_44BSD:
+		return fs32_to_cpu(sb, inode->ui_u3.ui_44.ui_uid);
+	default:
+		return fs16_to_cpu(sb, inode->ui_u1.oldids.ui_suid);
+	}
+}
+
+static inline void
+ufs_set_inode_uid(struct super_block *sb, struct ufs_inode *inode, u32 value)
+{
+	switch (sb->u.ufs_sb.s_flags & UFS_UID_MASK) {
+	case UFS_UID_EFT:
+		inode->ui_u3.ui_sun.ui_uid = cpu_to_fs32(sb, value);
+		break;
+	case UFS_UID_44BSD:
+		inode->ui_u3.ui_44.ui_uid = cpu_to_fs32(sb, value);
+		break;
+	}
+	inode->ui_u1.oldids.ui_suid = cpu_to_fs16(sb, value); 
+}
+
+static inline u32
+ufs_get_inode_gid(struct super_block *sb, struct ufs_inode *inode)
+{
+	switch (sb->u.ufs_sb.s_flags & UFS_UID_MASK) {
+	case UFS_UID_EFT:
+		return fs32_to_cpu(sb, inode->ui_u3.ui_sun.ui_gid);
+	case UFS_UID_44BSD:
+		return fs32_to_cpu(sb, inode->ui_u3.ui_44.ui_gid);
+	default:
+		return fs16_to_cpu(sb, inode->ui_u1.oldids.ui_sgid);
+	}
+}
+
+static inline void
+ufs_set_inode_gid(struct super_block *sb, struct ufs_inode *inode, u32 value)
+{
+	switch (sb->u.ufs_sb.s_flags & UFS_UID_MASK) {
+	case UFS_UID_EFT:
+		inode->ui_u3.ui_sun.ui_gid = cpu_to_fs32(sb, value);
+		break;
+	case UFS_UID_44BSD:
+		inode->ui_u3.ui_44.ui_gid = cpu_to_fs32(sb, value);
+		break;
+	}
+	inode->ui_u1.oldids.ui_sgid =  cpu_to_fs16(sb, value);
+}
+
+
+/*
+ * These functions manipulate ufs buffers
+ */
+#define ubh_bread(sb,fragment,size) _ubh_bread_(uspi,sb,fragment,size)  
+extern struct ufs_buffer_head * _ubh_bread_(struct ufs_sb_private_info *, struct super_block *, unsigned, unsigned);
+extern struct ufs_buffer_head * ubh_bread_uspi(struct ufs_sb_private_info *, struct super_block *, unsigned, unsigned);
+extern void ubh_brelse (struct ufs_buffer_head *);
+extern void ubh_brelse_uspi (struct ufs_sb_private_info *);
+extern void ubh_mark_buffer_dirty (struct ufs_buffer_head *);
+extern void ubh_mark_buffer_uptodate (struct ufs_buffer_head *, int);
+extern void ubh_ll_rw_block (int, unsigned, struct ufs_buffer_head **);
+extern void ubh_wait_on_buffer (struct ufs_buffer_head *);
+extern unsigned ubh_max_bcount (struct ufs_buffer_head *);
+extern void ubh_bforget (struct ufs_buffer_head *);
+extern int  ubh_buffer_dirty (struct ufs_buffer_head *);
+#define ubh_ubhcpymem(mem,ubh,size) _ubh_ubhcpymem_(uspi,mem,ubh,size)
+extern void _ubh_ubhcpymem_(struct ufs_sb_private_info *, unsigned char *, struct ufs_buffer_head *, unsigned);
+#define ubh_memcpyubh(ubh,mem,size) _ubh_memcpyubh_(uspi,ubh,mem,size)
+extern void _ubh_memcpyubh_(struct ufs_sb_private_info *, struct ufs_buffer_head *, unsigned char *, unsigned);
+
+
+
+/*
+ * macros to get important structures from ufs_buffer_head
+ */
+#define ubh_get_usb_first(ubh) \
+	((struct ufs_super_block_first *)((ubh)->bh[0]->b_data))
+
+#define ubh_get_usb_second(ubh) \
+	((struct ufs_super_block_second *)(ubh)-> \
+	bh[UFS_SECTOR_SIZE >> uspi->s_fshift]->b_data + (UFS_SECTOR_SIZE & ~uspi->s_fmask))
+
+#define ubh_get_usb_third(ubh) \
+	((struct ufs_super_block_third *)((ubh)-> \
+	bh[UFS_SECTOR_SIZE*2 >> uspi->s_fshift]->b_data + (UFS_SECTOR_SIZE*2 & ~uspi->s_fmask)))
+
+#define ubh_get_ucg(ubh) \
+	((struct ufs_cylinder_group *)((ubh)->bh[0]->b_data))
+
+
+/*
+ * Extract byte from ufs_buffer_head
+ * Extract the bits for a block from a map inside ufs_buffer_head
+ */
+#define ubh_get_addr8(ubh,begin) \
+	((u8*)(ubh)->bh[(begin) >> uspi->s_fshift]->b_data + \
+	((begin) & ~uspi->s_fmask))
+
+#define ubh_get_addr16(ubh,begin) \
+	(((u16*)((ubh)->bh[(begin) >> (uspi->s_fshift-1)]->b_data)) + \
+	((begin) & (uspi->fsize>>1) - 1)))
+
+#define ubh_get_addr32(ubh,begin) \
+	(((u32*)((ubh)->bh[(begin) >> (uspi->s_fshift-2)]->b_data)) + \
+	((begin) & ((uspi->s_fsize>>2) - 1)))
+
+#define ubh_get_addr ubh_get_addr8
+
+#define ubh_blkmap(ubh,begin,bit) \
+	((*ubh_get_addr(ubh, (begin) + ((bit) >> 3)) >> ((bit) & 7)) & (0xff >> (UFS_MAXFRAG - uspi->s_fpb)))
+
+
+/*
+ * Macros for access to superblock array structures
+ */
+#define ubh_postbl(ubh,cylno,i) \
+	((uspi->s_postblformat != UFS_DYNAMICPOSTBLFMT) \
+	? (*(__s16*)(ubh_get_addr(ubh, \
+	(unsigned)(&((struct ufs_super_block *)0)->fs_opostbl) \
+	+ (((cylno) * 16 + (i)) << 1) ) )) \
+	: (*(__s16*)(ubh_get_addr(ubh, \
+	uspi->s_postbloff + (((cylno) * uspi->s_nrpos + (i)) << 1) ))))
+
+#define ubh_rotbl(ubh,i) \
+	((uspi->s_postblformat != UFS_DYNAMICPOSTBLFMT) \
+	? (*(__u8*)(ubh_get_addr(ubh, \
+	(unsigned)(&((struct ufs_super_block *)0)->fs_space) + (i)))) \
+	: (*(__u8*)(ubh_get_addr(ubh, uspi->s_rotbloff + (i)))))
+
+/*
+ * Determine the number of available frags given a
+ * percentage to hold in reserve.
+ */
+#define ufs_freespace(usb, percentreserved) \
+	(ufs_blkstofrags(fs32_to_cpu(sb, (usb)->fs_cstotal.cs_nbfree)) + \
+	fs32_to_cpu(sb, (usb)->fs_cstotal.cs_nffree) - (uspi->s_dsize * (percentreserved) / 100))
+
+/*
+ * Macros to access cylinder group array structures
+ */
+#define ubh_cg_blktot(ucpi,cylno) \
+	(*((__u32*)ubh_get_addr(UCPI_UBH, (ucpi)->c_btotoff + ((cylno) << 2))))
+
+#define ubh_cg_blks(ucpi,cylno,rpos) \
+	(*((__u16*)ubh_get_addr(UCPI_UBH, \
+	(ucpi)->c_boff + (((cylno) * uspi->s_nrpos + (rpos)) << 1 ))))
+
+/*
+ * Bitmap operations
+ * These functions work like classical bitmap operations.
+ * The difference is that we don't have the whole bitmap
+ * in one contiguous chunk of memory, but in several buffers.
+ * The parameters of each function are super_block, ufs_buffer_head and
+ * position of the beginning of the bitmap.
+ */
+#define ubh_setbit(ubh,begin,bit) \
+	(*ubh_get_addr(ubh, (begin) + ((bit) >> 3)) |= (1 << ((bit) & 7)))
+
+#define ubh_clrbit(ubh,begin,bit) \
+	(*ubh_get_addr (ubh, (begin) + ((bit) >> 3)) &= ~(1 << ((bit) & 7)))
+
+#define ubh_isset(ubh,begin,bit) \
+	(*ubh_get_addr (ubh, (begin) + ((bit) >> 3)) & (1 << ((bit) & 7)))
+
+#define ubh_isclr(ubh,begin,bit) (!ubh_isset(ubh,begin,bit))
+
+#define ubh_find_first_zero_bit(ubh,begin,size) _ubh_find_next_zero_bit_(uspi,ubh,begin,size,0)
+
+#define ubh_find_next_zero_bit(ubh,begin,size,offset) _ubh_find_next_zero_bit_(uspi,ubh,begin,size,offset)
+static inline unsigned _ubh_find_next_zero_bit_(
+	struct ufs_sb_private_info * uspi, struct ufs_buffer_head * ubh,
+	unsigned begin, unsigned size, unsigned offset)
+{
+	unsigned base, count, pos;
+
+	size -= offset;
+	begin <<= 3;
+	offset += begin;
+	base = offset >> uspi->s_bpfshift;
+	offset &= uspi->s_bpfmask;
+	for (;;) {
+		count = min_t(unsigned int, size + offset, uspi->s_bpf);
+		size -= count - offset;
+		pos = ext2_find_next_zero_bit (ubh->bh[base]->b_data, count, offset);
+		if (pos < count || !size)
+			break;
+		base++;
+		offset = 0;
+	}
+	return (base << uspi->s_bpfshift) + pos - begin;
+} 	
+
+static inline unsigned find_last_zero_bit (unsigned char * bitmap,
+	unsigned size, unsigned offset)
+{
+	unsigned bit, i;
+	unsigned char * mapp;
+	unsigned char map;
+
+	mapp = bitmap + (size >> 3);
+	map = *mapp--;
+	bit = 1 << (size & 7);
+	for (i = size; i > offset; i--) {
+		if ((map & bit) == 0)
+			break;
+		if ((i & 7) != 0) {
+			bit >>= 1;
+		} else {
+			map = *mapp--;
+			bit = 1 << 7;
+		}
+	}
+	return i;
+}
+
+#define ubh_find_last_zero_bit(ubh,begin,size,offset) _ubh_find_last_zero_bit_(uspi,ubh,begin,size,offset)
+static inline unsigned _ubh_find_last_zero_bit_(
+	struct ufs_sb_private_info * uspi, struct ufs_buffer_head * ubh,
+	unsigned begin, unsigned start, unsigned end)
+{
+	unsigned base, count, pos, size;
+
+	size = start - end;
+	begin <<= 3;
+	start += begin;
+	base = start >> uspi->s_bpfshift;
+	start &= uspi->s_bpfmask;
+	for (;;) {
+		count = min_t(unsigned int,
+			    size + (uspi->s_bpf - start), uspi->s_bpf)
+			- (uspi->s_bpf - start);
+		size -= count;
+		pos = find_last_zero_bit (ubh->bh[base]->b_data,
+			start, start - count);
+		if (pos > start - count || !size)
+			break;
+		base--;
+		start = uspi->s_bpf;
+	}
+	return (base << uspi->s_bpfshift) + pos - begin;
+} 	
+
+#define ubh_isblockclear(ubh,begin,block) (!_ubh_isblockset_(uspi,ubh,begin,block))
+
+#define ubh_isblockset(ubh,begin,block) _ubh_isblockset_(uspi,ubh,begin,block)
+static inline int _ubh_isblockset_(struct ufs_sb_private_info * uspi,
+	struct ufs_buffer_head * ubh, unsigned begin, unsigned block)
+{
+	switch (uspi->s_fpb) {
+	case 8:
+	    	return (*ubh_get_addr (ubh, begin + block) == 0xff);
+	case 4:
+		return (*ubh_get_addr (ubh, begin + (block >> 1)) == (0x0f << ((block & 0x01) << 2)));
+	case 2:
+		return (*ubh_get_addr (ubh, begin + (block >> 2)) == (0x03 << ((block & 0x03) << 1)));
+	case 1:
+		return (*ubh_get_addr (ubh, begin + (block >> 3)) == (0x01 << (block & 0x07)));
+	}
+	return 0;	
+}
+
+#define ubh_clrblock(ubh,begin,block) _ubh_clrblock_(uspi,ubh,begin,block)
+static inline void _ubh_clrblock_(struct ufs_sb_private_info * uspi,
+	struct ufs_buffer_head * ubh, unsigned begin, unsigned block)
+{
+	switch (uspi->s_fpb) {
+	case 8:
+	    	*ubh_get_addr (ubh, begin + block) = 0x00;
+	    	return; 
+	case 4:
+		*ubh_get_addr (ubh, begin + (block >> 1)) &= ~(0x0f << ((block & 0x01) << 2));
+		return;
+	case 2:
+		*ubh_get_addr (ubh, begin + (block >> 2)) &= ~(0x03 << ((block & 0x03) << 1));
+		return;
+	case 1:
+		*ubh_get_addr (ubh, begin + (block >> 3)) &= ~(0x01 << ((block & 0x07)));
+		return;
+	}
+}
+
+#define ubh_setblock(ubh,begin,block) _ubh_setblock_(uspi,ubh,begin,block)
+static inline void _ubh_setblock_(struct ufs_sb_private_info * uspi,
+	struct ufs_buffer_head * ubh, unsigned begin, unsigned block)
+{
+	switch (uspi->s_fpb) {
+	case 8:
+	    	*ubh_get_addr(ubh, begin + block) = 0xff;
+	    	return;
+	case 4:
+		*ubh_get_addr(ubh, begin + (block >> 1)) |= (0x0f << ((block & 0x01) << 2));
+		return;
+	case 2:
+		*ubh_get_addr(ubh, begin + (block >> 2)) |= (0x03 << ((block & 0x03) << 1));
+		return;
+	case 1:
+		*ubh_get_addr(ubh, begin + (block >> 3)) |= (0x01 << ((block & 0x07)));
+		return;
+	}
+}
+
+static inline void ufs_fragacct (struct super_block * sb, unsigned blockmap,
+	unsigned * fraglist, int cnt)
+{
+	struct ufs_sb_private_info * uspi;
+	unsigned fragsize, pos;
+	
+	uspi = sb->u.ufs_sb.s_uspi;
+	
+	fragsize = 0;
+	for (pos = 0; pos < uspi->s_fpb; pos++) {
+		if (blockmap & (1 << pos)) {
+			fragsize++;
+		}
+		else if (fragsize > 0) {
+			fs32_add(sb, &fraglist[fragsize], cnt);
+			fragsize = 0;
+		}
+	}
+	if (fragsize > 0 && fragsize < uspi->s_fpb)
+		fs32_add(sb, &fraglist[fragsize], cnt);
+}
+
+#define ubh_scanc(ubh,begin,size,table,mask) _ubh_scanc_(uspi,ubh,begin,size,table,mask)
+static inline unsigned _ubh_scanc_(struct ufs_sb_private_info * uspi, struct ufs_buffer_head * ubh, 
+	unsigned begin, unsigned size, unsigned char * table, unsigned char mask)
+{
+	unsigned rest, offset;
+	unsigned char * cp;
+	
+
+	offset = begin & ~uspi->s_fmask;
+	begin >>= uspi->s_fshift;
+	for (;;) {
+		if ((offset + size) < uspi->s_fsize)
+			rest = size;
+		else
+			rest = uspi->s_fsize - offset;
+		size -= rest;
+		cp = ubh->bh[begin]->b_data + offset;
+		while ((table[*cp++] & mask) == 0 && --rest);
+		if (rest || !size)
+			break;
+		begin++;
+		offset = 0;
+	}
+	return (size + rest);
+}
diff --git a/fs/umsdos/Makefile b/fs/umsdos/Makefile
new file mode 100644
index 00000000000000..a894146ba59b47
--- /dev/null
+++ b/fs/umsdos/Makefile
@@ -0,0 +1,24 @@
+#
+# Makefile for the umsdos Unix-like filesystem routines.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (not a .c file).
+#
+# Note 2:  the CFLAGS definitions are now in the main makefile.
+O_TARGET := umsdos.o
+
+obj-y   := dir.o  inode.o ioctl.o mangle.o namei.o rdir.o emd.o
+
+obj-m   := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
+
+clean:
+	rm -f core *.o *.a *.s
+
+p:
+	proto *.c >/usr/include/linux/umsdos_fs.p
+
+doc:
+	nadoc -i -p umsdos.doc - /tmp/umsdos.mpg
diff --git a/fs/umsdos/README-WIP.txt b/fs/umsdos/README-WIP.txt
new file mode 100644
index 00000000000000..14643c738f6e41
--- /dev/null
+++ b/fs/umsdos/README-WIP.txt
@@ -0,0 +1,114 @@
+Changes by Matija Nalis (mnalis@jagor.srce.hr) on umsdos dentry fixing
+(started by Peter T. Waltenberg <peterw@karaka.chch.cri.nz>)
+(Final conversion to dentries Bill Hawes <whawes@star.net>)
+
+There is no warning any more.
+Both read-only and read-write stuff is fixed, both in
+msdos-compatibile mode, and in umsdos EMD mode, and it seems stable.
+
+Userland NOTE: new umsdos_progs (umssync, umssetup, udosctl & friends) that
+will compile and work on 2.2.x+ kernels and glibc based systems, as well as
+kernel patches and other umsdos related information may be found at
+http://linux.voyager.hr/umsdos/
+
+Information below is getting outdated slowly -- I'll fix it one day when I
+get enough time - there are more important things to fix right now.
+
+Legend: those lines marked with '+' on the beggining of line indicates it
+passed all of my tests, and performed perfect in all of them.
+
+Current status (010125) - UMSDOS 0.86j:
+
+(1) pure MSDOS (no --linux-.--- EMD file):
+
+READ:
++ readdir			- works
++ lookup			- works
++ read file			- works
+
+WRITE:
++ creat file			- works
++ unlink file			- works
++ write file			- works
++ rename file (same dir)	- works
++ rename file (dif. dir)	- works
++ rename dir (same dir)		- works
++ rename dir (dif. dir)		- works
++ mkdir				- works
++ rmdir 			- works
+
+
+(2) umsdos (with --linux-.--- EMD file):
+
+READ:
++ readdir			- works
++ lookup 			- works
++ permissions/owners stuff	- works
++ long file names		- works
++ read file			- works
++ switching MSDOS/UMSDOS	- works
++ switching UMSDOS/MSDOS	- works
+- pseudo root things		- works mostly. See notes below.
++ resolve symlink		- works
++ dereference symlink		- works
++ dangling symlink		- works
++ hard links			- works
++ special files (block/char devices, FIFOs, sockets...)	- works
++ various umsdos ioctls		- works
+
+
+WRITE:
++ create symlink		- works
++ create hardlink		- works
++ create file			- works
++ create special file		- works
++ write to file			- works
++ rename file (same dir)	- works
++ rename file (dif. dir)	- works
++ rename hardlink (same dir)	- works
+- rename hardlink (dif. dir)	- works, but see notes below.
++ rename symlink (same dir)	- works
++ rename symlink (dif. dir)	- works
++ rename dir (same dir)		- works
++ rename dir (dif. dir)		- works
++ unlink file			- works
++ notify_change (chown,perms)	- works
++ notify_change for hardlinks	- works
++ unlink hardlink		- works
++ mkdir				- works
++ rmdir 			- works
++ umssyncing (many ioctls)	- works
+
+
+- CVF-FAT stuff (compressed DOS filesystem) - there is some support from Frank
+  Gockel <gockel@sent13.uni-duisburg.de> to use it even under umsdosfs, but I
+  have no way of testing it -- please let me know if there are problems specific
+  to umsdos (for instance, it works under msdosfs, but not under umsdosfs).
+
+
+Some current notes:
+
+Note: creating and using pseudo-hardlinks is always non-perfect, especially
+in filesystems that might be externally modified like umsdos. There is
+example is specs file about it. Specifically, moving directory which
+contains hardlinks will break them.
+
+Note: (about creating hardlinks in pseudoroot mode) - hardlinks created in
+pseudoroot mode are now again compatibile with 'normal' hardlinks, and vice
+versa. Thanks to Sorin Iordachescu <sorin@rodae.ro> for providing fix.
+See http://linux.voyager.hr/umsdos/hlbug.html for more info and upgrade
+procedure if you used broken versions...
+
+------------------------------------------------------------------------------
+
+Some general notes:
+
+Good idea when running development kernels is to have SysRq support compiled
+in kernel, and use Sync/Emergency-remount-RO if you bump into problems (like
+not being able to umount(2) umsdosfs, and because of it root partition also,
+or panics which force you to reboot etc.)
+
+I'm unfortunately somewhat out of time to read linux-kernel@vger, but I do
+check for messages having "UMSDOS" in the subject, and read them.  I might
+miss some in all that volume, though.  I should reply to any direct e-mail
+in few days.  If I don't, probably I never got your message.
diff --git a/fs/umsdos/dir.c b/fs/umsdos/dir.c
new file mode 100644
index 00000000000000..8a54536a8beb84
--- /dev/null
+++ b/fs/umsdos/dir.c
@@ -0,0 +1,809 @@
+/*
+ *  linux/fs/umsdos/dir.c
+ *
+ *  Written 1993 by Jacques Gelinas
+ *      Inspired from linux/fs/msdos/... : Werner Almesberger
+ *
+ *  Extended MS-DOS directory handling functions
+ */
+
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/fs.h>
+#include <linux/msdos_fs.h>
+#include <linux/errno.h>
+#include <linux/stat.h>
+#include <linux/limits.h>
+#include <linux/umsdos_fs.h>
+#include <linux/slab.h>
+#include <linux/pagemap.h>
+
+#define UMSDOS_SPECIAL_DIRFPOS	3
+extern struct dentry *saved_root;
+extern struct inode *pseudo_root;
+
+/* #define UMSDOS_DEBUG_VERBOSE 1 */
+
+/*
+ * Dentry operations routines
+ */
+
+/* nothing for now ... */
+static int umsdos_dentry_validate(struct dentry *dentry, int flags)
+{
+	return 1;
+}
+
+/* for now, drop everything to force lookups ... */
+/* ITYM s/everything/& positive/... */
+static int umsdos_dentry_dput(struct dentry *dentry)
+{
+	struct inode *inode = dentry->d_inode;
+	if (inode) {
+		return 1;
+	}
+	return 0;
+}
+
+struct dentry_operations umsdos_dentry_operations =
+{
+	d_revalidate:	umsdos_dentry_validate,
+	d_delete:	umsdos_dentry_dput,
+};
+
+struct UMSDOS_DIR_ONCE {
+	void *dirbuf;
+	filldir_t filldir;
+	int count;
+	int stop;
+};
+
+/*
+ * Record a single entry the first call.
+ * Return -EINVAL the next one.
+ * NOTE: filldir DOES NOT use a dentry
+ */
+
+static int umsdos_dir_once (	void *buf,
+				const char *name,
+				int len,
+				loff_t offset,
+				ino_t ino,
+				unsigned type)
+{
+	int ret = -EINVAL;
+	struct UMSDOS_DIR_ONCE *d = (struct UMSDOS_DIR_ONCE *) buf;
+
+	if (d->count == 0) {
+		PRINTK ((KERN_DEBUG "dir_once :%.*s: offset %Ld\n", 
+			len, name, offset));
+		ret = d->filldir (d->dirbuf, name, len, offset, ino, DT_UNKNOWN);
+		d->stop = ret < 0;
+		d->count = 1;
+	}
+	return ret;
+}
+
+
+/*
+ * Read count directory entries from directory filp
+ * Return a negative value from linux/errno.h.
+ * Return > 0 if success (the number of bytes written by filldir).
+ * 
+ * This function is used by the normal readdir VFS entry point,
+ * and in order to get the directory entry from a file's dentry.
+ * See umsdos_dentry_to_entry() below.
+ */
+ 
+static int umsdos_readdir_x (struct inode *dir, struct file *filp,
+				void *dirbuf, struct umsdos_dirent *u_entry,
+				filldir_t filldir)
+{
+	struct dentry *demd;
+	off_t start_fpos;
+	int ret = 0;
+	loff_t pos;
+
+	umsdos_startlookup (dir);
+
+	if (filp->f_pos == UMSDOS_SPECIAL_DIRFPOS && dir == pseudo_root) {
+
+		/*
+		 * We don't need to simulate this pseudo directory
+		 * when umsdos_readdir_x is called for internal operation
+		 * of umsdos. This is why dirent_in_fs is tested
+		 */
+		/* #Specification: pseudo root / directory /DOS
+		 * When umsdos operates in pseudo root mode (C:\linux is the
+		 * linux root), it simulate a directory /DOS which points to
+		 * the real root of the file system.
+		 */
+
+		Printk ((KERN_WARNING "umsdos_readdir_x: pseudo_root thing UMSDOS_SPECIAL_DIRFPOS\n"));
+		if (filldir (dirbuf, "DOS", 3, 
+				UMSDOS_SPECIAL_DIRFPOS, UMSDOS_ROOT_INO, DT_DIR) == 0) {
+			filp->f_pos++;
+		}
+		goto out_end;
+	}
+
+	if (filp->f_pos < 2 || 
+	    (dir->i_ino != UMSDOS_ROOT_INO && filp->f_pos == 32)) {
+	
+		int last_f_pos = filp->f_pos;
+		struct UMSDOS_DIR_ONCE bufk;
+
+		Printk (("umsdos_readdir_x: . or .. /mn/?\n"));
+
+		bufk.dirbuf = dirbuf;
+		bufk.filldir = filldir;
+		bufk.count = 0;
+
+		ret = fat_readdir (filp, &bufk, umsdos_dir_once);
+		if (last_f_pos > 0 && filp->f_pos > last_f_pos)
+			filp->f_pos = UMSDOS_SPECIAL_DIRFPOS;
+		if (u_entry != NULL)
+			u_entry->flags = 0;
+		goto out_end;
+	}
+
+	Printk (("umsdos_readdir_x: normal file /mn/?\n"));
+
+	/* get the EMD dentry */
+	demd = umsdos_get_emd_dentry(filp->f_dentry);
+	ret = PTR_ERR(demd);
+	if (IS_ERR(demd))
+		goto out_end;
+	ret = -EIO;
+	if (!demd->d_inode) {
+		printk(KERN_WARNING 
+			"umsdos_readir_x: EMD file %s/%s not found\n",
+			demd->d_parent->d_name.name, demd->d_name.name);
+		goto out_dput;
+	}
+
+	pos = filp->f_pos;
+	start_fpos = filp->f_pos;
+
+	if (pos <= UMSDOS_SPECIAL_DIRFPOS + 1)
+		pos = 0;
+	ret = 0;
+	while (pos < demd->d_inode->i_size) {
+		off_t cur_f_pos = pos;
+		struct dentry *dret;
+		struct inode *inode;
+		struct umsdos_dirent entry;
+		struct umsdos_info info;
+
+		ret = -EIO;
+		if (umsdos_emd_dir_readentry (demd, &pos, &entry) != 0)
+			break;
+		if (entry.name_len == 0)
+			continue;
+#ifdef UMSDOS_DEBUG_VERBOSE
+if (entry.flags & UMSDOS_HLINK)
+printk("umsdos_readdir_x: %s/%s is hardlink\n",
+filp->f_dentry->d_name.name, entry.name);
+#endif
+
+		umsdos_parse (entry.name, entry.name_len, &info);
+		info.f_pos = cur_f_pos;
+		umsdos_manglename (&info);
+		/*
+		 * Do a real lookup on the short name.
+		 */
+		dret = umsdos_covered(filp->f_dentry, info.fake.fname,
+						 info.fake.len);
+		ret = PTR_ERR(dret);
+		if (IS_ERR(dret))
+			break;
+		/*
+		 * If the file wasn't found, remove it from the EMD.
+		 */
+		inode = dret->d_inode;
+		if (!inode)
+			goto remove_name;
+#ifdef UMSDOS_DEBUG_VERBOSE
+if (inode->u.umsdos_i.i_is_hlink)
+printk("umsdos_readdir_x: %s/%s already resolved, ino=%ld\n",
+dret->d_parent->d_name.name, dret->d_name.name, inode->i_ino);
+#endif
+
+Printk (("Found %s/%s, ino=%ld, flags=%x\n",
+dret->d_parent->d_name.name, info.fake.fname, dret->d_inode->i_ino,
+entry.flags));
+		/* check whether to resolve a hard-link */
+		if ((entry.flags & UMSDOS_HLINK) &&
+		    !inode->u.umsdos_i.i_is_hlink) {
+			dret = umsdos_solve_hlink (dret);
+			ret = PTR_ERR(dret);
+			if (IS_ERR(dret))
+				break;
+			inode = dret->d_inode;
+			if (!inode) {
+printk("umsdos_readdir_x: %s/%s negative after link\n",
+dret->d_parent->d_name.name, dret->d_name.name);
+				goto clean_up;
+			}
+		}
+
+		/* #Specification:  pseudo root / reading real root
+		 * The pseudo root (/linux) is logically
+		 * erased from the real root.  This means that
+		 * ls /DOS, won't show "linux". This avoids
+		 * infinite recursion (/DOS/linux/DOS/linux/...) while
+		 * walking the file system.
+		 */
+		if (inode != pseudo_root && !(entry.flags & UMSDOS_HIDDEN)) {
+			if (filldir (dirbuf, entry.name, entry.name_len,
+				 cur_f_pos, inode->i_ino, DT_UNKNOWN) < 0) {
+				pos = cur_f_pos;
+			}
+Printk(("umsdos_readdir_x: got %s/%s, ino=%ld\n",
+dret->d_parent->d_name.name, dret->d_name.name, inode->i_ino));
+			if (u_entry != NULL)
+				*u_entry = entry;
+			dput(dret);
+			ret = 0;
+			break;
+		}
+	clean_up:
+		dput(dret);
+		continue;
+
+	remove_name:
+		/* #Specification:  umsdos / readdir / not in MSDOS
+		 * During a readdir operation, if the file is not
+		 * in the MS-DOS directory any more, the entry is
+		 * removed from the EMD file silently.
+		 */
+#ifdef UMSDOS_PARANOIA
+printk("umsdos_readdir_x: %s/%s out of sync, erasing\n",
+filp->f_dentry->d_name.name, info.entry.name);
+#endif
+		ret = umsdos_delentry(filp->f_dentry, &info, 
+					S_ISDIR(info.entry.mode));
+		if (ret)
+			printk(KERN_WARNING 
+				"umsdos_readdir_x: delentry %s, err=%d\n",
+				info.entry.name, ret);
+		goto clean_up;
+	}
+	/*
+	 * If the fillbuf has failed, f_pos is back to 0.
+	 * To avoid getting back into the . and .. state
+	 * (see comments at the beginning), we put back
+	 * the special offset.
+	 */
+	filp->f_pos = pos;
+	if (filp->f_pos == 0)
+		filp->f_pos = start_fpos;
+out_dput:
+	dput(demd);
+
+out_end:
+	umsdos_endlookup (dir);
+	
+	Printk ((KERN_DEBUG "read dir %p pos %Ld ret %d\n",
+		dir, filp->f_pos, ret));
+	return ret;
+}
+
+
+/*
+ * Read count directory entries from directory filp.
+ * Return a negative value from linux/errno.h.
+ * Return 0 or positive if successful.
+ */
+ 
+static int UMSDOS_readdir (struct file *filp, void *dirbuf, filldir_t filldir)
+{
+	struct inode *dir = filp->f_dentry->d_inode;
+	int ret = 0, count = 0;
+	struct UMSDOS_DIR_ONCE bufk;
+
+	bufk.dirbuf = dirbuf;
+	bufk.filldir = filldir;
+	bufk.stop = 0;
+
+	Printk (("UMSDOS_readdir in\n"));
+	while (ret == 0 && bufk.stop == 0) {
+		struct umsdos_dirent entry;
+
+		bufk.count = 0;
+		ret = umsdos_readdir_x (dir, filp, &bufk, &entry, 
+					umsdos_dir_once);
+		if (bufk.count == 0)
+			break;
+		count += bufk.count;
+	}
+	Printk (("UMSDOS_readdir out %d count %d pos %Ld\n", 
+		ret, count, filp->f_pos));
+	return count ? : ret;
+}
+
+
+/*
+ * Complete the inode content with info from the EMD file.
+ *
+ * This function modifies the state of a dir inode.  It decides
+ * whether the dir is a UMSDOS or DOS directory.  This is done
+ * deeper in umsdos_patch_inode() called at the end of this function.
+ * 
+ * Because it is does disk access, umsdos_patch_inode() may block.
+ * At the same time, another process may get here to initialise
+ * the same directory inode. There are three cases.
+ * 
+ * 1) The inode is already initialised.  We do nothing.
+ * 2) The inode is not initialised.  We lock access and do it.
+ * 3) Like 2 but another process has locked the inode, so we try
+ * to lock it and check right afterward check whether
+ * initialisation is still needed.
+ * 
+ * 
+ * Thanks to the "mem" option of the kernel command line, it was
+ * possible to consistently reproduce this problem by limiting
+ * my memory to 4 MB and running X.
+ *
+ * Do this only if the inode is freshly read, because we will lose
+ * the current (updated) content.
+ *
+ * A lookup of a mount point directory yield the inode into
+ * the other fs, so we don't care about initialising it. iget()
+ * does this automatically.
+ */
+
+void umsdos_lookup_patch_new(struct dentry *dentry, struct umsdos_info *info)
+{
+	struct inode *inode = dentry->d_inode;
+	struct umsdos_dirent *entry = &info->entry;
+
+	/*
+	 * This part of the initialization depends only on i_patched.
+	 */
+	if (inode->u.umsdos_i.i_patched)
+		goto out;
+	inode->u.umsdos_i.i_patched = 1;
+	if (S_ISREG (entry->mode))
+		entry->mtime = inode->i_mtime;
+	inode->i_mode = entry->mode;
+	inode->i_rdev = to_kdev_t (entry->rdev);
+	inode->i_atime = entry->atime;
+	inode->i_ctime = entry->ctime;
+	inode->i_mtime = entry->mtime;
+	inode->i_uid = entry->uid;
+	inode->i_gid = entry->gid;
+
+	/* #Specification: umsdos / i_nlink
+	 * The nlink field of an inode is maintained by the MSDOS file system
+	 * for directory and by UMSDOS for other files.  The logic is that
+	 * MSDOS is already figuring out what to do for directories and
+	 * does nothing for other files.  For MSDOS, there are no hard links
+	 * so all file carry nlink==1.  UMSDOS use some info in the
+	 * EMD file to plug the correct value.
+	 */
+	if (!S_ISDIR (entry->mode)) {
+		if (entry->nlink > 0) {
+			inode->i_nlink = entry->nlink;
+		} else {
+			printk (KERN_ERR 
+				"UMSDOS:  lookup_patch entry->nlink < 1 ???\n");
+		}
+	}
+	/*
+	 * The mode may have changed, so patch the inode again.
+	 */
+	umsdos_patch_dentry_inode(dentry, info->f_pos);
+	umsdos_set_dirinfo_new(dentry, info->f_pos);
+
+out:
+	return;
+}
+
+
+/*
+ * Return != 0 if an entry is the pseudo DOS entry in the pseudo root.
+ */
+
+int umsdos_is_pseudodos (struct inode *dir, struct dentry *dentry)
+{
+	/* #Specification: pseudo root / DOS hard coded
+	 * The pseudo sub-directory DOS in the pseudo root is hard coded.
+	 * The name is DOS. This is done this way to help standardised
+	 * the umsdos layout. The idea is that from now on /DOS is
+	 * a reserved path and nobody will think of using such a path
+	 * for a package.
+	 */
+	return dir == pseudo_root
+	    && dentry->d_name.len == 3
+	    && dentry->d_name.name[0] == 'D'
+	    && dentry->d_name.name[1] == 'O'
+	    && dentry->d_name.name[2] == 'S';
+}
+
+
+/*
+ * Check whether a file exists in the current directory.
+ * Return 0 if OK, negative error code if not (ex: -ENOENT).
+ *
+ * fills dentry->d_inode with found inode, and increments its count.
+ * if not found, return -ENOENT.
+ */
+/* #Specification: umsdos / lookup
+ * A lookup for a file is done in two steps.  First, we
+ * locate the file in the EMD file.  If not present, we
+ * return an error code (-ENOENT).  If it is there, we
+ * repeat the operation on the msdos file system. If
+ * this fails, it means that the file system is not in
+ * sync with the EMD file.   We silently remove this
+ * entry from the EMD file, and return ENOENT.
+ */
+
+struct dentry *umsdos_lookup_x (struct inode *dir, struct dentry *dentry, int nopseudo)
+{				
+	struct dentry *dret = NULL;
+	struct inode *inode;
+	int ret = -ENOENT;
+	struct umsdos_info info;
+
+#ifdef UMSDOS_DEBUG_VERBOSE
+printk("umsdos_lookup_x: looking for %s/%s\n", 
+dentry->d_parent->d_name.name, dentry->d_name.name);
+#endif
+
+	umsdos_startlookup (dir);
+	if (umsdos_is_pseudodos (dir, dentry)) {
+		/* #Specification: pseudo root / lookup(DOS)
+		 * A lookup of DOS in the pseudo root will always succeed
+		 * and return the inode of the real root.
+		 */
+		Printk ((KERN_DEBUG "umsdos_lookup_x: following /DOS\n"));
+		inode = saved_root->d_inode;
+		goto out_add;
+	}
+
+	ret = umsdos_parse (dentry->d_name.name, dentry->d_name.len, &info);
+	if (ret) {
+printk("umsdos_lookup_x: %s/%s parse failed, ret=%d\n", 
+dentry->d_parent->d_name.name, dentry->d_name.name, ret);
+		goto out;
+	}
+
+	ret = umsdos_findentry (dentry->d_parent, &info, 0);
+	if (ret) {
+if (ret != -ENOENT)
+printk("umsdos_lookup_x: %s/%s findentry failed, ret=%d\n", 
+dentry->d_parent->d_name.name, dentry->d_name.name, ret);
+		goto out;
+	}
+Printk (("lookup %.*s pos %lu ret %d len %d ", 
+info.fake.len, info.fake.fname, info.f_pos, ret, info.fake.len));
+
+	/* do a real lookup to get the short name ... */
+	dret = umsdos_covered(dentry->d_parent, info.fake.fname, info.fake.len);
+	ret = PTR_ERR(dret);
+	if (IS_ERR(dret)) {
+printk("umsdos_lookup_x: %s/%s real lookup failed, ret=%d\n", 
+dentry->d_parent->d_name.name, dentry->d_name.name, ret);
+		goto out;
+	}
+	inode = dret->d_inode;
+	if (!inode)
+		goto out_remove;
+	umsdos_lookup_patch_new(dret, &info);
+#ifdef UMSDOS_DEBUG_VERBOSE
+printk("umsdos_lookup_x: found %s/%s, ino=%ld\n", 
+dret->d_parent->d_name.name, dret->d_name.name, dret->d_inode->i_ino);
+#endif
+
+	/* Check for a hard link */
+	if ((info.entry.flags & UMSDOS_HLINK) &&
+	    !inode->u.umsdos_i.i_is_hlink) {
+		dret = umsdos_solve_hlink (dret);
+		ret = PTR_ERR(dret);
+		if (IS_ERR(dret))
+			goto out;
+		ret = -ENOENT;
+		inode = dret->d_inode;
+		if (!inode) {
+printk("umsdos_lookup_x: %s/%s negative after link\n", 
+dret->d_parent->d_name.name, dret->d_name.name);
+			goto out_dput;
+		}
+	}
+
+	if (inode == pseudo_root && !nopseudo) {
+		/* #Specification: pseudo root / dir lookup
+		 * For the same reason as readdir, a lookup in /DOS for
+		 * the pseudo root directory (linux) will fail.
+		 */
+		/*
+		 * This has to be allowed for resolving hard links
+		 * which are recorded independently of the pseudo-root
+		 * mode.
+		 */
+printk("umsdos_lookup_x: skipping DOS/linux\n");
+		ret = -ENOENT;
+		goto out_dput;
+	}
+
+	/*
+	 * We've found it OK.  Now hash the dentry with the inode.
+	 */
+out_add:
+	atomic_inc(&inode->i_count);
+	d_add (dentry, inode);
+	dentry->d_op = &umsdos_dentry_operations;
+	ret = 0;
+
+out_dput:
+	if (dret && dret != dentry)
+		d_drop(dret);
+	dput(dret);
+out:
+	umsdos_endlookup (dir);
+	return ERR_PTR(ret);
+
+out_remove:
+	printk(KERN_WARNING "UMSDOS:  entry %s/%s out of sync, erased\n",
+		dentry->d_parent->d_name.name, dentry->d_name.name);
+	umsdos_delentry (dentry->d_parent, &info, S_ISDIR (info.entry.mode));
+	ret = -ENOENT;
+	goto out_dput;
+}
+
+
+/*
+ * Check whether a file exists in the current directory.
+ * Return 0 if OK, negative error code if not (ex: -ENOENT).
+ * 
+ * Called by VFS; should fill dentry->d_inode via d_add.
+ */
+
+struct dentry *UMSDOS_lookup (struct inode *dir, struct dentry *dentry)
+{
+	struct dentry *ret;
+
+	ret = umsdos_lookup_x (dir, dentry, 0);
+
+	/* Create negative dentry if not found. */
+	if (ret == ERR_PTR(-ENOENT)) {
+		Printk ((KERN_DEBUG 
+			"UMSDOS_lookup: converting -ENOENT to negative\n"));
+		d_add (dentry, NULL);
+		dentry->d_op = &umsdos_dentry_operations;
+		ret = NULL;
+	}
+	return ret;
+}
+
+struct dentry *umsdos_covered(struct dentry *parent, char *name, int len)
+{
+	struct dentry *result, *dentry;
+	struct qstr qstr;
+
+	qstr.name = name;
+	qstr.len  = len;
+	qstr.hash = full_name_hash(name, len);
+	result = ERR_PTR(-ENOMEM);
+	dentry = d_alloc(parent, &qstr);
+	if (dentry) {
+		/* XXXXXXXXXXXXXXXXXXX Race alert! */
+		result = UMSDOS_rlookup(parent->d_inode, dentry);
+		d_drop(dentry);
+		if (result)
+			goto out_fail;
+		return dentry;
+	}
+out:
+	return result;
+
+out_fail:
+	dput(dentry);
+	goto out;
+}
+
+/*
+ * Lookup or create a dentry from within the filesystem.
+ *
+ * We need to use this instead of lookup_dentry, as the 
+ * directory semaphore lock is already held.
+ */
+struct dentry *umsdos_lookup_dentry(struct dentry *parent, char *name, int len,
+					int real)
+{
+	struct dentry *result, *dentry;
+	struct qstr qstr;
+
+	qstr.name = name;
+	qstr.len  = len;
+	qstr.hash = full_name_hash(name, len);
+	result = d_lookup(parent, &qstr);
+	if (!result) {
+		result = ERR_PTR(-ENOMEM);
+		dentry = d_alloc(parent, &qstr);
+		if (dentry) {
+			result = real ?
+				UMSDOS_rlookup(parent->d_inode, dentry) :
+				UMSDOS_lookup(parent->d_inode, dentry);
+			if (result)
+				goto out_fail;
+			return dentry;
+		}
+	}
+out:
+	return result;
+
+out_fail:
+	dput(dentry);
+	goto out;
+}
+
+/*
+ * Return a path relative to our root.
+ */
+char * umsdos_d_path(struct dentry *dentry, char * buffer, int len)
+{
+	struct dentry * old_root;
+	char * path;
+
+	read_lock(&current->fs->lock);
+	old_root = dget(current->fs->root);
+	read_unlock(&current->fs->lock);
+	spin_lock(&dcache_lock);
+	path = __d_path(dentry, current->fs->rootmnt, dentry->d_sb->s_root, current->fs->rootmnt, buffer, len); /* FIXME: current->fs->rootmnt */
+	spin_unlock(&dcache_lock);
+
+	if (IS_ERR(path))
+		return path;
+
+	if (*path == '/')
+		path++; /* skip leading '/' */
+
+	if (current->fs->root->d_inode == pseudo_root)
+	{
+		*(path-1) = '/';
+		path -= (UMSDOS_PSDROOT_LEN+1);
+		memcpy(path, UMSDOS_PSDROOT_NAME, UMSDOS_PSDROOT_LEN);
+	}
+	dput(old_root);
+
+	return path;
+}
+
+/*
+ * Return the dentry which points to a pseudo-hardlink.
+ *
+ * it should try to find file it points to
+ * if file is found, return new dentry/inode
+ * The resolved inode will have i_is_hlink set.
+ *
+ * Note: the original dentry is always dput(), even if an error occurs.
+ */
+
+struct dentry *umsdos_solve_hlink (struct dentry *hlink)
+{
+	/* root is our root for resolving pseudo-hardlink */
+	struct dentry *base = hlink->d_sb->s_root;
+	struct dentry *dentry_dst;
+	char *path, *pt;
+	int len;
+	struct address_space *mapping = hlink->d_inode->i_mapping;
+	struct page *page;
+
+	page=read_cache_page(mapping,0,(filler_t *)mapping->a_ops->readpage,NULL);
+	dentry_dst=(struct dentry *)page;
+	if (IS_ERR(page))
+		goto out;
+	wait_on_page(page);
+	if (!Page_Uptodate(page))
+		goto async_fail;
+
+	dentry_dst = ERR_PTR(-ENOMEM);
+	path = (char *) kmalloc (PATH_MAX, GFP_KERNEL);
+	if (path == NULL)
+		goto out_release;
+	memcpy(path, kmap(page), hlink->d_inode->i_size);
+	kunmap(page);
+	page_cache_release(page);
+
+	len = hlink->d_inode->i_size;
+
+	/* start at root dentry */
+	dentry_dst = dget(base);
+	path[len] = '\0';
+	
+	pt = path;
+	if (*path == '/')
+		pt++; /* skip leading '/' */
+	
+	if (base->d_inode == pseudo_root)
+		pt += (UMSDOS_PSDROOT_LEN + 1);
+	
+	while (1) {
+		struct dentry *dir = dentry_dst, *demd;
+		char *start = pt;
+		int real;
+
+		while (*pt != '\0' && *pt != '/') pt++;
+		len = (int) (pt - start);
+		if (*pt == '/') *pt++ = '\0';
+
+		real = 1;
+		demd = umsdos_get_emd_dentry(dir);
+		if (!IS_ERR(demd)) {
+			if (demd->d_inode)
+				real = 0;
+			dput(demd);
+		}
+
+#ifdef UMSDOS_DEBUG_VERBOSE
+printk ("umsdos_solve_hlink: dir %s/%s, name=%s, real=%d\n",
+dir->d_parent->d_name.name, dir->d_name.name, start, real);
+#endif
+		dentry_dst = umsdos_lookup_dentry(dir, start, len, real);
+/* XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX */
+		if (real)
+			d_drop(dir);
+		dput (dir);
+		if (IS_ERR(dentry_dst))
+			break;
+		/* not found? stop search ... */
+		if (!dentry_dst->d_inode) {
+			break;
+		}
+		if (*pt == '\0')	/* we're finished! */
+			break;
+	} /* end while */
+
+	if (!IS_ERR(dentry_dst)) {
+		struct inode *inode = dentry_dst->d_inode;
+		if (inode) {
+			inode->u.umsdos_i.i_is_hlink = 1;
+#ifdef UMSDOS_DEBUG_VERBOSE
+printk ("umsdos_solve_hlink: resolved link %s/%s, ino=%ld\n",
+dentry_dst->d_parent->d_name.name, dentry_dst->d_name.name, inode->i_ino);
+#endif
+		} else {
+#ifdef UMSDOS_DEBUG_VERBOSE
+printk ("umsdos_solve_hlink: resolved link %s/%s negative!\n",
+dentry_dst->d_parent->d_name.name, dentry_dst->d_name.name);
+#endif
+		}
+	} else
+		printk(KERN_WARNING
+			"umsdos_solve_hlink: err=%ld\n", PTR_ERR(dentry_dst));
+	kfree (path);
+
+out:
+	dput(hlink);	/* original hlink no longer needed */
+	return dentry_dst;
+
+async_fail:
+	dentry_dst = ERR_PTR(-EIO);
+out_release:
+	page_cache_release(page);
+	goto out;
+}	
+
+
+struct file_operations umsdos_dir_operations =
+{
+	read:		generic_read_dir,
+	readdir:	UMSDOS_readdir,
+	ioctl:		UMSDOS_ioctl_dir,
+};
+
+struct inode_operations umsdos_dir_inode_operations =
+{
+	create:		UMSDOS_create,
+	lookup:		UMSDOS_lookup,
+	link:		UMSDOS_link,
+	unlink:		UMSDOS_unlink,
+	symlink:	UMSDOS_symlink,
+	mkdir:		UMSDOS_mkdir,
+	rmdir:		UMSDOS_rmdir,
+	mknod:		UMSDOS_mknod,
+	rename:		UMSDOS_rename,
+	setattr:	UMSDOS_notify_change,
+};
diff --git a/fs/umsdos/emd.c b/fs/umsdos/emd.c
new file mode 100644
index 00000000000000..51d76ca2400913
--- /dev/null
+++ b/fs/umsdos/emd.c
@@ -0,0 +1,660 @@
+/*
+ *  linux/fs/umsdos/emd.c
+ *
+ *  Written 1993 by Jacques Gelinas
+ *
+ *  Extended MS-DOS directory handling functions
+ */
+
+#include <linux/types.h>
+#include <linux/fcntl.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/msdos_fs.h>
+#include <linux/umsdos_fs.h>
+#include <linux/dcache.h>
+#include <linux/pagemap.h>
+#include <linux/delay.h>
+
+void put_entry (struct umsdos_dirent *p, struct umsdos_dirent *q)
+{
+	p->name_len = q->name_len;
+	p->flags = q->flags;
+	p->nlink = cpu_to_le16(q->nlink);
+	p->uid = cpu_to_le16(q->uid);
+	p->gid = cpu_to_le16(q->gid);
+	p->atime = cpu_to_le32(q->atime);
+	p->mtime = cpu_to_le32(q->mtime);
+	p->ctime = cpu_to_le32(q->ctime);
+	p->rdev = cpu_to_le16(q->rdev);
+	p->mode = cpu_to_le16(q->mode);
+}
+
+static void get_entry(struct umsdos_dirent *p, struct umsdos_dirent *q)
+{
+	p->name_len = q->name_len;
+	p->name[p->name_len]='\0';
+	p->flags = q->flags;
+	p->nlink = le16_to_cpu (q->nlink);
+	/* FIXME -- 32bit UID/GID issues */
+	p->uid = le16_to_cpu (q->uid);
+	p->gid = le16_to_cpu (q->gid);
+	p->atime = le32_to_cpu (q->atime);
+	p->mtime = le32_to_cpu (q->mtime);
+	p->ctime = le32_to_cpu (q->ctime);
+	p->rdev = le16_to_cpu (q->rdev);
+	p->mode = le16_to_cpu (q->mode);
+}
+
+/*
+ * Lookup the EMD dentry for a directory.
+ *
+ * Note: the caller must hold a lock on the parent directory.
+ */
+struct dentry *umsdos_get_emd_dentry(struct dentry *parent)
+{
+	struct dentry *demd;
+
+	demd = umsdos_lookup_dentry(parent, UMSDOS_EMD_FILE, 
+					UMSDOS_EMD_NAMELEN, 1);
+	return demd;
+}
+
+/*
+ * Check whether a directory has an EMD file.
+ *
+ * Note: the caller must hold a lock on the parent directory.
+ */
+int umsdos_have_emd(struct dentry *dir)
+{
+	struct dentry *demd = umsdos_get_emd_dentry (dir);
+	int found = 0;
+
+	if (!IS_ERR(demd)) {
+		if (demd->d_inode)
+			found = 1;
+		dput(demd);
+	}
+	return found;
+}
+
+/*
+ * Create the EMD file for a directory if it doesn't
+ * already exist. Returns 0 or an error code.
+ *
+ * Note: the caller must hold a lock on the parent directory.
+ */
+int umsdos_make_emd(struct dentry *parent)
+{
+	struct dentry *demd = umsdos_get_emd_dentry(parent);
+	int err = PTR_ERR(demd);
+
+	if (IS_ERR(demd)) {
+		printk("umsdos_make_emd: can't get dentry in %s, err=%d\n",
+			parent->d_name.name, err);
+		goto out;
+	}
+
+	/* already created? */
+	err = 0;
+	if (demd->d_inode)
+		goto out_set;
+
+Printk(("umsdos_make_emd: creating EMD %s/%s\n",
+parent->d_name.name, demd->d_name.name));
+
+	err = msdos_create(parent->d_inode, demd, S_IFREG | 0777);
+	if (err) {
+		printk (KERN_WARNING
+			"umsdos_make_emd: create %s/%s failed, err=%d\n",
+			parent->d_name.name, demd->d_name.name, err);
+	}
+out_set:
+	dput(demd);
+out:
+	return err;
+}
+
+
+/*
+ * Read an entry from the EMD file.
+ * Support variable length record.
+ * Return -EIO if error, 0 if OK.
+ *
+ * does not change {d,i}_count
+ */
+
+int umsdos_emd_dir_readentry (struct dentry *demd, loff_t *pos, struct umsdos_dirent *entry)
+{
+	struct address_space *mapping = demd->d_inode->i_mapping;
+	struct page *page;
+	struct umsdos_dirent *p;
+	int offs = *pos & ~PAGE_CACHE_MASK;
+	int recsize;
+	int ret = 0;
+
+	page = read_cache_page(mapping, *pos>>PAGE_CACHE_SHIFT,
+			(filler_t*)mapping->a_ops->readpage, NULL);
+	if (IS_ERR(page))
+		goto sync_fail;
+	wait_on_page(page);
+	if (!Page_Uptodate(page))
+		goto async_fail;
+	p = (struct umsdos_dirent*)(kmap(page)+offs);
+
+	/* if this is an invalid entry (invalid name length), ignore it */
+	if( p->name_len > UMSDOS_MAXNAME )
+	{
+		printk (KERN_WARNING "Ignoring invalid EMD entry with size %d\n", entry->name_len);
+		p->name_len = 0; 
+		ret = -ENAMETOOLONG; /* notify umssync(8) code that something is wrong */
+		/* FIXME: does not work if we did 'ls -l' before 'udosctl uls' ?! */
+	}
+
+	recsize = umsdos_evalrecsize(p->name_len);
+	if (offs + recsize > PAGE_CACHE_SIZE) {
+		struct page *page2;
+		int part = (char *)(page_address(page) + PAGE_CACHE_SIZE) - p->spare;
+		page2 = read_cache_page(mapping, 1+(*pos>>PAGE_CACHE_SHIFT),
+				(filler_t*)mapping->a_ops->readpage, NULL);
+		if (IS_ERR(page2)) {
+			kunmap(page);
+			page_cache_release(page);
+			page = page2;
+			goto sync_fail;
+		}
+		wait_on_page(page2);
+		if (!Page_Uptodate(page2)) {
+			kunmap(page);
+			page_cache_release(page2);
+			goto async_fail;
+		}
+		memcpy(entry->spare,p->spare,part);
+		memcpy(entry->spare+part,kmap(page2),
+				recsize+offs-PAGE_CACHE_SIZE);
+		kunmap(page2);
+		page_cache_release(page2);
+	} else
+		memcpy(entry->spare,p->spare,((char*)p+recsize)-p->spare);
+	get_entry(entry, p);
+	kunmap(page);
+	page_cache_release(page);
+	*pos += recsize;
+	return ret;
+async_fail:
+	page_cache_release(page);
+	page = ERR_PTR(-EIO);
+sync_fail:
+	return PTR_ERR(page);
+}
+
+
+/*
+ * Write an entry in the EMD file.
+ * Return 0 if OK, -EIO if some error.
+ *
+ * Note: the caller must hold a lock on the parent directory.
+ */
+int umsdos_writeentry (struct dentry *parent, struct umsdos_info *info,
+				int free_entry)
+{
+	struct inode *dir = parent->d_inode;
+	struct umsdos_dirent *entry = &info->entry;
+	struct dentry *emd_dentry;
+	int ret;
+	struct umsdos_dirent entry0,*p;
+	struct address_space *mapping;
+	struct page *page, *page2 = NULL;
+	int offs;
+
+	emd_dentry = umsdos_get_emd_dentry(parent);
+	ret = PTR_ERR(emd_dentry);
+	if (IS_ERR(emd_dentry))
+		goto out;
+	/* make sure there's an EMD file */
+	ret = -EIO;
+	if (!emd_dentry->d_inode) {
+		printk(KERN_WARNING
+			"umsdos_writeentry: no EMD file in %s/%s\n",
+			parent->d_parent->d_name.name, parent->d_name.name);
+		goto out_dput;
+	}
+
+	if (free_entry) {
+		/* #Specification: EMD file / empty entries
+		 * Unused entries in the EMD file are identified
+		 * by the name_len field equal to 0. However to
+		 * help future extension (or bug correction :-( ),
+		 * empty entries are filled with 0.
+		 */
+		memset (&entry0, 0, sizeof (entry0));
+		entry = &entry0;
+	} else if (entry->name_len > 0) {
+		memset (entry->name + entry->name_len, '\0', 
+			sizeof (entry->name) - entry->name_len);
+		/* #Specification: EMD file / spare bytes
+		 * 10 bytes are unused in each record of the EMD. They
+		 * are set to 0 all the time, so it will be possible
+		 * to do new stuff and rely on the state of those
+		 * bytes in old EMD files.
+		 */
+		memset (entry->spare, 0, sizeof (entry->spare));
+	}
+
+	/* write the entry and update the parent timestamps */
+	mapping = emd_dentry->d_inode->i_mapping;
+	offs = info->f_pos & ~PAGE_CACHE_MASK;
+	ret = -ENOMEM;
+	page = grab_cache_page(mapping, info->f_pos>>PAGE_CACHE_SHIFT);
+	if (!page)
+		goto out_dput;
+	p = (struct umsdos_dirent *) (page_address(page) + offs);
+	if (offs + info->recsize > PAGE_CACHE_SIZE) {
+		ret = mapping->a_ops->prepare_write(NULL,page,offs,
+					PAGE_CACHE_SIZE);
+		if (ret)
+			goto out_unlock;
+		page2 = grab_cache_page(mapping,
+					(info->f_pos>>PAGE_CACHE_SHIFT)+1);
+		if (!page2)
+			goto out_unlock2;
+		ret = mapping->a_ops->prepare_write(NULL,page2,0,
+					offs+info->recsize-PAGE_CACHE_SIZE);
+		if (ret)
+			goto out_unlock3;
+		put_entry (p, entry);
+		memcpy(p->spare,entry->spare,
+			(char *)(page_address(page) + PAGE_CACHE_SIZE) - p->spare);
+		memcpy(page_address(page2),
+				((char*)entry)+PAGE_CACHE_SIZE-offs,
+				offs+info->recsize-PAGE_CACHE_SIZE);
+		ret = mapping->a_ops->commit_write(NULL,page2,0,
+					offs+info->recsize-PAGE_CACHE_SIZE);
+		if (ret)
+			goto out_unlock3;
+		ret = mapping->a_ops->commit_write(NULL,page,offs,
+					PAGE_CACHE_SIZE);
+		UnlockPage(page2);
+		page_cache_release(page2);
+		if (ret)
+			goto out_unlock;
+	} else {
+		ret = mapping->a_ops->prepare_write(NULL,page,offs,
+					offs + info->recsize);
+		if (ret)
+			goto out_unlock;
+		put_entry (p, entry);
+		memcpy(p->spare,entry->spare,((char*)p+info->recsize)-p->spare);
+		ret = mapping->a_ops->commit_write(NULL,page,offs,
+					offs + info->recsize);
+		if (ret)
+			goto out_unlock;
+	}
+	UnlockPage(page);
+	page_cache_release(page);
+		
+	dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+	mark_inode_dirty(dir);
+
+out_dput:
+	dput(emd_dentry);
+out:
+	Printk (("umsdos_writeentry /mn/: returning %d...\n", ret));
+	return ret;
+out_unlock3:
+	UnlockPage(page2);
+	page_cache_release(page2);
+out_unlock2:
+	ClearPageUptodate(page);
+	kunmap(page);
+out_unlock:
+	UnlockPage(page);
+	page_cache_release(page);
+	printk ("UMSDOS:  problem with EMD file:  can't write\n");
+	goto out_dput;
+}
+
+/*
+ * General search, locate a name in the EMD file or an empty slot to
+ * store it. if info->entry.name_len == 0, search the first empty
+ * slot (of the proper size).
+ * 
+ * Return 0 if found, -ENOENT if not found, another error code if
+ * other problem.
+ * 
+ * So this routine is used to either find an existing entry or to
+ * create a new one, while making sure it is a new one. After you
+ * get -ENOENT, you make sure the entry is stuffed correctly and
+ * call umsdos_writeentry().
+ * 
+ * To delete an entry, you find it, zero out the entry (memset)
+ * and call umsdos_writeentry().
+ * 
+ * All this to say that umsdos_writeentry must be called after this
+ * function since it relies on the f_pos field of info.
+ *
+ * Note: the caller must hold a lock on the parent directory.
+ */
+/* #Specification: EMD file structure
+ * The EMD file uses a fairly simple layout.  It is made of records
+ * (UMSDOS_REC_SIZE == 64).  When a name can't be written in a single
+ * record, multiple contiguous records are allocated.
+ */
+
+static int umsdos_find (struct dentry *demd, struct umsdos_info *info)
+{
+	struct umsdos_dirent *entry = &info->entry;
+	int recsize = info->recsize;
+	struct inode *emd_dir;
+	int ret = -ENOENT;
+	struct {
+		off_t posok;	/* Position available to store the entry */
+		off_t one;	/* One empty position -> maybe <- large enough */
+	} empty;
+	int found = 0;
+	int empty_size = 0;
+	struct address_space *mapping;
+	filler_t *readpage;
+	struct page *page = NULL;
+	int index = -1;
+	int offs = PAGE_CACHE_SIZE,max_offs = PAGE_CACHE_SIZE;
+	char *p = NULL;
+	loff_t pos = 0;
+
+	/* make sure there's an EMD file ... */
+	ret = -ENOENT;
+	emd_dir = demd->d_inode;
+	if (!emd_dir)
+		goto out_dput;
+	mapping = emd_dir->i_mapping;
+	readpage = (filler_t*)mapping->a_ops->readpage;
+
+	empty.posok = emd_dir->i_size;
+	while (1) {
+		struct umsdos_dirent *rentry;
+		int entry_size;
+
+		if (offs >= max_offs) {
+			if (page) {
+				kunmap(page);
+				page_cache_release(page);
+				page = NULL;
+			}
+			if (pos >= emd_dir->i_size) {
+				info->f_pos = empty.posok;
+				break;
+			}
+			if (++index == (emd_dir->i_size>>PAGE_CACHE_SHIFT))
+				max_offs = emd_dir->i_size & ~PAGE_CACHE_MASK;
+			offs -= PAGE_CACHE_SIZE;
+			page = read_cache_page(mapping,index,readpage,NULL);
+			if (IS_ERR(page))
+				goto sync_fail;
+			wait_on_page(page);
+			if (!Page_Uptodate(page))
+				goto async_fail;
+			p = kmap(page);
+		}
+
+		rentry = (struct umsdos_dirent *)(p+offs);
+
+		if (rentry->name_len == 0) {
+			/* We are looking for an empty section at least */
+			/* as large as recsize. */
+			if (entry->name_len == 0) {
+				info->f_pos = pos;
+				ret = 0;
+				break;
+			}
+			offs += UMSDOS_REC_SIZE;
+			pos += UMSDOS_REC_SIZE;
+			if (found)
+				continue;
+			if (!empty_size)
+				empty.one = pos-UMSDOS_REC_SIZE;
+			empty_size += UMSDOS_REC_SIZE;
+			if (empty_size == recsize) {
+				/* Here is a large enough section. */
+				empty.posok = empty.one;
+				found = 1;
+			}
+			continue;
+		}
+
+		entry_size = umsdos_evalrecsize(rentry->name_len);
+		if (entry_size > PAGE_CACHE_SIZE)
+			goto async_fail;
+		empty_size = 0;
+		if (entry->name_len != rentry->name_len)
+			goto skip_it;
+
+		if (entry_size + offs > PAGE_CACHE_SIZE) {
+			/* Sucker spans the page boundary */
+			int len = (p+PAGE_CACHE_SIZE)-rentry->name;
+			struct page *next_page;
+			char *q;
+			next_page = read_cache_page(mapping,index+1,readpage,NULL);
+			if (IS_ERR(next_page)) {
+				page_cache_release(page);
+				page = next_page;
+				goto sync_fail;
+			}
+			wait_on_page(next_page);
+			if (!Page_Uptodate(next_page)) {
+				page_cache_release(page);
+				page = next_page;
+				goto async_fail;
+			}
+			q = kmap(next_page);
+			if (memcmp(entry->name, rentry->name, len) ||
+			    memcmp(entry->name+len, q, entry->name_len-len)) {
+				kunmap(next_page);
+				page_cache_release(next_page);
+				goto skip_it;
+			}
+			kunmap(next_page);
+			page_cache_release(next_page);
+		} else if (memcmp (entry->name, rentry->name, entry->name_len))
+			goto skip_it;
+
+		info->f_pos = pos;
+		get_entry(entry, rentry);
+		ret = 0;
+		break;
+skip_it:
+		offs+=entry_size;
+		pos+=entry_size;
+	}
+	if (page) {
+		kunmap(page);
+		page_cache_release(page);
+	}
+	umsdos_manglename (info);
+
+out_dput:
+	dput(demd);
+	return ret;
+
+async_fail:
+	page_cache_release(page);
+	page = ERR_PTR(-EIO);
+sync_fail:
+	return PTR_ERR(page);
+}
+
+
+/*
+ * Add a new entry in the EMD file.
+ * Return 0 if OK or a negative error code.
+ * Return -EEXIST if the entry already exists.
+ *
+ * Complete the information missing in info.
+ * 
+ * N.B. What if the EMD file doesn't exist?
+ */
+
+int umsdos_newentry (struct dentry *parent, struct umsdos_info *info)
+{
+	int err, ret = -EEXIST;
+	struct dentry *demd = umsdos_get_emd_dentry(parent);
+
+	ret = PTR_ERR(demd);
+	if (IS_ERR(demd))
+		goto out;
+	err = umsdos_find (demd, info);
+	if (err && err == -ENOENT) {
+		ret = umsdos_writeentry (parent, info, 0);
+		Printk (("umsdos_writeentry EMD ret = %d\n", ret));
+	}
+out:
+	return ret;
+}
+
+
+/*
+ * Create a new hidden link.
+ * Return 0 if OK, an error code if not.
+ */
+
+/* #Specification: hard link / hidden name
+ * When a hard link is created, the original file is renamed
+ * to a hidden name. The name is "..LINKNNN" where NNN is a
+ * number define from the entry offset in the EMD file.
+ */
+int umsdos_newhidden (struct dentry *parent, struct umsdos_info *info)
+{
+	int ret;
+	struct dentry *demd = umsdos_get_emd_dentry(parent);
+	ret = PTR_ERR(demd);
+	if (IS_ERR(demd))
+		goto out;
+
+	umsdos_parse ("..LINK", 6, info);
+	info->entry.name_len = 0;
+	ret = umsdos_find (demd, info);
+	if (ret == -ENOENT || ret == 0) {
+		info->entry.name_len = sprintf (info->entry.name,
+						"..LINK%ld", info->f_pos);
+		ret = 0;
+	}
+out:
+	return ret;
+}
+
+
+/*
+ * Remove an entry from the EMD file.
+ * Return 0 if OK, a negative error code otherwise.
+ * 
+ * Complete the information missing in info.
+ */
+
+int umsdos_delentry (struct dentry *parent, struct umsdos_info *info, int isdir)
+{
+	int ret;
+	struct dentry *demd = umsdos_get_emd_dentry(parent);
+
+	ret = PTR_ERR(demd);
+	if (IS_ERR(demd))
+		goto out;
+	ret = umsdos_find (demd, info);
+	if (ret)
+		goto out;
+	if (info->entry.name_len == 0)
+		goto out;
+
+	if ((isdir != 0) != (S_ISDIR (info->entry.mode) != 0)) {
+		if (S_ISDIR (info->entry.mode)) {
+			ret = -EISDIR;
+		} else {
+			ret = -ENOTDIR;
+		}
+		goto out;
+	}
+	ret = umsdos_writeentry (parent, info, 1);
+
+out:
+	return ret;
+}
+
+
+/*
+ * Verify that an EMD directory is empty.
+ * Return: 
+ * 0 if not empty,
+ * 1 if empty (except for EMD file),
+ * 2 if empty or no EMD file.
+ */
+
+int umsdos_isempty (struct dentry *dentry)
+{
+	struct dentry *demd;
+	int ret = 2;
+	loff_t pos = 0;
+
+	demd = umsdos_get_emd_dentry(dentry);
+	if (IS_ERR(demd))
+		goto out;
+	/* If the EMD file does not exist, it is certainly empty. :-) */
+	if (!demd->d_inode)
+		goto out_dput;
+
+	ret = 1;
+	while (pos < demd->d_inode->i_size) {
+		struct umsdos_dirent entry;
+
+		if (umsdos_emd_dir_readentry (demd, &pos, &entry) != 0) {
+			ret = 0;
+			break;
+		}
+		if (entry.name_len != 0) {
+			ret = 0;
+			break;
+		}
+	}
+
+out_dput:
+	dput(demd);
+out:
+	return ret;
+}
+
+/*
+ * Locate an entry in a EMD directory.
+ * Return 0 if OK, error code if not, generally -ENOENT.
+ *
+ * expect argument:
+ * 	0: anything
+ * 	1: file
+ * 	2: directory
+ */
+
+int umsdos_findentry (struct dentry *parent, struct umsdos_info *info,
+			int expect)
+{		
+	int ret;
+	struct dentry *demd = umsdos_get_emd_dentry(parent);
+
+	ret = PTR_ERR(demd);
+	if (IS_ERR(demd))
+		goto out;
+	ret = umsdos_find (demd, info);
+	if (ret)
+		goto out;
+
+	switch (expect) {
+	case 1:
+		if (S_ISDIR (info->entry.mode))
+			ret = -EISDIR;
+		break;
+	case 2:
+		if (!S_ISDIR (info->entry.mode))
+			ret = -ENOTDIR;
+	}
+
+out:
+	Printk (("umsdos_findentry: returning %d\n", ret));
+	return ret;
+}
diff --git a/fs/umsdos/inode.c b/fs/umsdos/inode.c
new file mode 100644
index 00000000000000..98009bff861fed
--- /dev/null
+++ b/fs/umsdos/inode.c
@@ -0,0 +1,478 @@
+/*
+ *  linux/fs/umsdos/inode.c
+ *
+ *      Written 1993 by Jacques Gelinas
+ *      Inspired from linux/fs/msdos/... by Werner Almesberger
+ */
+
+#include <linux/module.h>
+
+#include <linux/init.h>
+#include <linux/fs.h>
+#include <linux/msdos_fs.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <asm/uaccess.h>
+#include <linux/string.h>
+#include <linux/stat.h>
+#include <linux/umsdos_fs.h>
+#include <linux/list.h>
+#include <linux/pagemap.h>
+
+extern struct dentry_operations umsdos_dentry_operations;
+
+struct dentry *saved_root;	/* Original root if changed */
+struct inode *pseudo_root;	/* Useful to simulate the pseudo DOS */
+					/* directory. See UMSDOS_readdir_x() */
+
+static struct dentry *check_pseudo_root(struct super_block *);
+
+
+void UMSDOS_put_inode (struct inode *inode)
+{
+	PRINTK ((KERN_DEBUG 
+		"put inode %p (%lu) pos %lu count=%d\n"
+		 ,inode, inode->i_ino
+		 ,inode->u.umsdos_i.pos
+		 ,atomic_read(&inode->i_count)));
+
+	if (inode == pseudo_root) {
+		Printk ((KERN_ERR "Umsdos: debug: releasing pseudo_root - ino=%lu count=%d\n", inode->i_ino, atomic_read(&inode->i_count)));
+	}
+
+	if (atomic_read(&inode->i_count) == 1)
+		inode->u.umsdos_i.i_patched = 0;
+}
+
+
+void UMSDOS_put_super (struct super_block *sb)
+{
+	Printk ((KERN_DEBUG "UMSDOS_put_super: entering\n"));
+	if (saved_root && pseudo_root && sb->s_dev == ROOT_DEV) {
+		shrink_dcache_parent(saved_root);
+		dput(saved_root);
+		saved_root = NULL;
+		pseudo_root = NULL;
+	}
+	msdos_put_super (sb);
+}
+
+
+/*
+ * Complete the setup of a directory dentry based on its
+ * EMD/non-EMD status.  If it has an EMD, then plug the
+ * umsdos function table. If not, use the msdos one.
+ */
+void umsdos_setup_dir(struct dentry *dir)
+{
+	struct inode *inode = dir->d_inode;
+
+	if (!S_ISDIR(inode->i_mode))
+		printk(KERN_ERR "umsdos_setup_dir: %s/%s not a dir!\n",
+			dir->d_parent->d_name.name, dir->d_name.name);
+
+	init_waitqueue_head (&inode->u.umsdos_i.dir_info.p);
+	inode->u.umsdos_i.dir_info.looking = 0;
+	inode->u.umsdos_i.dir_info.creating = 0;
+	inode->u.umsdos_i.dir_info.pid = 0;
+
+	inode->i_op = &umsdos_rdir_inode_operations;
+	inode->i_fop = &umsdos_rdir_operations;
+	if (umsdos_have_emd(dir)) {
+Printk((KERN_DEBUG "umsdos_setup_dir: %s/%s using EMD\n",
+dir->d_parent->d_name.name, dir->d_name.name));
+		inode->i_op = &umsdos_dir_inode_operations;
+		inode->i_fop = &umsdos_dir_operations;
+	}
+}
+
+
+/*
+ * Add some info into an inode so it can find its owner quickly
+ */
+void umsdos_set_dirinfo_new (struct dentry *dentry, off_t f_pos)
+{
+	struct inode *inode = dentry->d_inode;
+	struct dentry *demd;
+
+	inode->u.umsdos_i.pos = f_pos;
+
+	/* now check the EMD file */
+	demd = umsdos_get_emd_dentry(dentry->d_parent);
+	if (!IS_ERR(demd)) {
+		dput(demd);
+	}
+	return;
+}
+
+static struct inode_operations umsdos_file_inode_operations = {
+	truncate:	fat_truncate,
+	setattr:	UMSDOS_notify_change,
+};
+
+static struct inode_operations umsdos_symlink_inode_operations = {
+	readlink:	page_readlink,
+	follow_link:	page_follow_link,
+	setattr:	UMSDOS_notify_change,
+};
+
+/*
+ * Connect the proper tables in the inode and add some info.
+ */
+/* #Specification: inode / umsdos info
+ * The first time an inode is seen (inode->i_count == 1),
+ * the inode number of the EMD file which controls this inode
+ * is tagged to this inode. It allows operations such as
+ * notify_change to be handled.
+ */
+void umsdos_patch_dentry_inode(struct dentry *dentry, off_t f_pos)
+{
+	struct inode *inode = dentry->d_inode;
+
+PRINTK (("umsdos_patch_dentry_inode: inode=%lu\n", inode->i_ino));
+
+	/*
+	 * Classify the inode based on EMD/non-EMD status.
+	 */
+PRINTK (("umsdos_patch_inode: call umsdos_set_dirinfo_new(%p,%lu)\n",
+dentry, f_pos));
+	umsdos_set_dirinfo_new(dentry, f_pos);
+
+	inode->i_op = &umsdos_file_inode_operations;
+	if (S_ISREG (inode->i_mode)) {
+		/* address_space operations already set */
+	} else if (S_ISDIR (inode->i_mode)) {
+		umsdos_setup_dir(dentry);
+	} else if (S_ISLNK (inode->i_mode)) {
+		/* address_space operations already set */
+		inode->i_op = &umsdos_symlink_inode_operations;
+	} else
+		init_special_inode(inode, inode->i_mode,
+					kdev_t_to_nr(inode->i_rdev));
+}
+
+
+/*
+ * lock the parent dir before starting ...
+ * also handles hardlink converting
+ */
+int UMSDOS_notify_change (struct dentry *dentry, struct iattr *attr)
+{
+	struct inode *dir, *inode;
+	struct umsdos_info info;
+	struct dentry *temp, *old_dentry = NULL;
+	int ret;
+
+	ret = umsdos_parse (dentry->d_name.name, dentry->d_name.len,
+				&info);
+	if (ret)
+		goto out;
+	ret = umsdos_findentry (dentry->d_parent, &info, 0);
+	if (ret) {
+printk("UMSDOS_notify_change: %s/%s not in EMD, ret=%d\n",
+dentry->d_parent->d_name.name, dentry->d_name.name, ret);
+		goto out;
+	}
+
+	if (info.entry.flags & UMSDOS_HLINK) {
+		/*
+		 * In order to get the correct (real) inode, we just drop
+		 * the original dentry.
+		 */ 
+		d_drop(dentry);
+Printk(("UMSDOS_notify_change: hard link %s/%s, fake=%s\n",
+dentry->d_parent->d_name.name, dentry->d_name.name, info.fake.fname));
+	
+		/* Do a real lookup to get the short name dentry */
+		temp = umsdos_covered(dentry->d_parent, info.fake.fname,
+						info.fake.len);
+		ret = PTR_ERR(temp);
+		if (IS_ERR(temp))
+			goto out;
+	
+		/* now resolve the link ... */
+		temp = umsdos_solve_hlink(temp);
+		ret = PTR_ERR(temp);
+		if (IS_ERR(temp))
+			goto out;
+		old_dentry = dentry;
+		dentry = temp;	/* so umsdos_notify_change_locked will operate on that */
+	}
+
+	dir = dentry->d_parent->d_inode;
+	inode = dentry->d_inode;
+
+	ret = inode_change_ok (inode, attr);
+	if (ret)
+		goto out;
+
+	down(&dir->i_sem);
+	ret = umsdos_notify_change_locked(dentry, attr);
+	up(&dir->i_sem);
+	if (ret == 0)
+		ret = inode_setattr (inode, attr);
+out:
+	if (old_dentry)
+		dput (dentry);	/* if we had to use fake dentry for hardlinks, dput() it now */
+	return ret;
+}
+
+
+/*
+ * Must be called with the parent lock held.
+ */
+int umsdos_notify_change_locked(struct dentry *dentry, struct iattr *attr)
+{
+	struct inode *inode = dentry->d_inode;
+	struct dentry *demd;
+	struct address_space *mapping;
+	struct page *page;
+	int ret = 0;
+	struct umsdos_dirent *entry;
+	int offs;
+
+Printk(("UMSDOS_notify_change: entering for %s/%s (%d)\n",
+dentry->d_parent->d_name.name, dentry->d_name.name, inode->u.umsdos_i.i_patched));
+
+	if (inode->i_nlink == 0)
+		goto out;
+	if (inode->i_ino == UMSDOS_ROOT_INO)
+		goto out;
+
+	/* get the EMD file dentry */
+	demd = umsdos_get_emd_dentry(dentry->d_parent);
+	ret = PTR_ERR(demd);
+	if (IS_ERR(demd))
+		goto out;
+	ret = 0;
+	/* don't do anything if directory is not promoted to umsdos yet */
+	if (!demd->d_inode) { 
+		Printk((KERN_DEBUG
+			"UMSDOS_notify_change: no EMD file %s/%s\n",
+			demd->d_parent->d_name.name, demd->d_name.name));
+		goto out_dput;
+	}
+
+	/* don't do anything if this is the EMD itself */
+	if (inode == demd->d_inode)
+		goto out_dput;
+
+	/* This inode is not a EMD file nor an inode used internally
+	 * by MSDOS, so we can update its status.
+	 * See emd.c
+	 */
+
+	/* Read only the start of the entry since we don't touch the name */
+	mapping = demd->d_inode->i_mapping;
+	offs = inode->u.umsdos_i.pos & ~PAGE_CACHE_MASK;
+	ret = -ENOMEM;
+	page=grab_cache_page(mapping,inode->u.umsdos_i.pos>>PAGE_CACHE_SHIFT);
+	if (!page)
+		goto out_dput;
+	ret=mapping->a_ops->prepare_write(NULL,page,offs,offs+UMSDOS_REC_SIZE);
+	if (ret)
+		goto out_unlock;
+	entry = (struct umsdos_dirent *) (page_address(page) + offs);
+	if (attr->ia_valid & ATTR_UID)
+		entry->uid = cpu_to_le16(attr->ia_uid);
+	if (attr->ia_valid & ATTR_GID)
+		entry->gid = cpu_to_le16(attr->ia_gid);
+	if (attr->ia_valid & ATTR_MODE)
+		entry->mode = cpu_to_le16(attr->ia_mode);
+	if (attr->ia_valid & ATTR_ATIME)
+		entry->atime = cpu_to_le32(attr->ia_atime);
+	if (attr->ia_valid & ATTR_MTIME)
+		entry->mtime = cpu_to_le32(attr->ia_mtime);
+	if (attr->ia_valid & ATTR_CTIME)
+		entry->ctime = cpu_to_le32(attr->ia_ctime);
+	entry->nlink = cpu_to_le16(inode->i_nlink);
+	ret=mapping->a_ops->commit_write(NULL,page,offs,offs+UMSDOS_REC_SIZE);
+	if (ret)
+		printk(KERN_WARNING
+			"umsdos_notify_change: %s/%s EMD write error, ret=%d\n",
+			dentry->d_parent->d_name.name, dentry->d_name.name,ret);
+
+	/* #Specification: notify_change / msdos fs
+	 * notify_change operation are done only on the
+	 * EMD file. The msdos fs is not even called.
+	 */
+out_unlock:
+	UnlockPage(page);
+	page_cache_release(page);
+out_dput:
+	dput(demd);
+out:
+	return ret;
+}
+
+
+/*
+ * Update the disk with the inode content
+ */
+void UMSDOS_write_inode (struct inode *inode, int wait)
+{
+	struct iattr newattrs;
+
+	fat_write_inode (inode, wait);
+	newattrs.ia_mtime = inode->i_mtime;
+	newattrs.ia_atime = inode->i_atime;
+	newattrs.ia_ctime = inode->i_ctime;
+	newattrs.ia_valid = ATTR_MTIME | ATTR_ATIME | ATTR_CTIME;
+	/*
+	 * UMSDOS_notify_change is convenient to call here
+	 * to update the EMD entry associated with this inode.
+	 * But it has the side effect to re"dirt" the inode.
+	 */
+/*      
+ * UMSDOS_notify_change (inode, &newattrs);
+
+ * inode->i_state &= ~I_DIRTY; / * FIXME: this doesn't work.  We need to remove ourselves from list on dirty inodes. /mn/ */
+}
+
+
+static struct super_operations umsdos_sops =
+{
+	write_inode:	UMSDOS_write_inode,
+	put_inode:	UMSDOS_put_inode,
+	delete_inode:	fat_delete_inode,
+	put_super:	UMSDOS_put_super,
+	statfs:		UMSDOS_statfs,
+	clear_inode:	fat_clear_inode,
+};
+
+int UMSDOS_statfs(struct super_block *sb,struct statfs *buf)
+{
+	int ret;
+	ret = fat_statfs (sb, buf);
+	if (!ret)	
+		buf->f_namelen = UMSDOS_MAXNAME;
+	return ret;
+}
+
+/*
+ * Read the super block of an Extended MS-DOS FS.
+ */
+struct super_block *UMSDOS_read_super (struct super_block *sb, void *data,
+				      int silent)
+{
+	struct super_block *res;
+	struct dentry *new_root;
+
+	/*
+	 * Call msdos-fs to mount the disk.
+	 * Note: this returns res == sb or NULL
+	 */
+	res = msdos_read_super (sb, data, silent);
+
+	if (!res)
+		goto out_fail;
+
+	printk (KERN_INFO "UMSDOS 0.86k "
+		"(compatibility level %d.%d, fast msdos)\n", 
+		UMSDOS_VERSION, UMSDOS_RELEASE);
+
+	sb->s_op = &umsdos_sops;
+	MSDOS_SB(sb)->options.dotsOK = 0;	/* disable hidden==dotfile */
+
+	/* install our dentry operations ... */
+	sb->s_root->d_op = &umsdos_dentry_operations;
+
+	umsdos_patch_dentry_inode(sb->s_root, 0);
+
+	/* Check whether to change to the /linux root */
+	new_root = check_pseudo_root(sb);
+
+	if (new_root) {
+		/* sanity check */
+		if (new_root->d_op != &umsdos_dentry_operations)
+			printk("umsdos_read_super: pseudo-root wrong ops!\n");
+
+		pseudo_root = new_root->d_inode;
+		saved_root = sb->s_root;
+		printk(KERN_INFO "UMSDOS: changed to alternate root\n");
+		dget (sb->s_root); sb->s_root = dget(new_root);
+	}
+	return sb;
+
+out_fail:
+	printk(KERN_INFO "UMSDOS: msdos_read_super failed, mount aborted.\n");
+	return NULL;
+}
+
+/*
+ * Check for an alternate root if we're the root device.
+ */
+
+extern kdev_t ROOT_DEV;
+static struct dentry *check_pseudo_root(struct super_block *sb)
+{
+	struct dentry *root, *sbin, *init;
+
+	/*
+	 * Check whether we're mounted as the root device.
+	 * must check like this, because we can be used with initrd
+	 */
+		
+	if (sb->s_dev != ROOT_DEV)
+		goto out_noroot;
+
+	/* 
+	 * lookup_dentry needs a (so far non-existent) root. 
+	 */
+	printk(KERN_INFO "check_pseudo_root: mounted as root\n");
+	root = lookup_one_len(UMSDOS_PSDROOT_NAME, sb->s_root,UMSDOS_PSDROOT_LEN); 
+	if (IS_ERR(root))
+		goto out_noroot;
+		
+	if (!root->d_inode || !S_ISDIR(root->d_inode->i_mode))
+		goto out_dput;
+
+printk(KERN_INFO "check_pseudo_root: found %s/%s\n",
+root->d_parent->d_name.name, root->d_name.name);
+
+	/* look for /sbin/init */
+	sbin = lookup_one_len("sbin", root, 4);
+	if (IS_ERR(sbin))
+		goto out_dput;
+	if (!sbin->d_inode || !S_ISDIR(sbin->d_inode->i_mode))
+		goto out_dput_sbin;
+	init = lookup_one_len("init", sbin, 4);
+	if (IS_ERR(init))
+		goto out_dput_sbin;
+	if (!init->d_inode)
+		goto out_dput_init;
+	printk(KERN_INFO "check_pseudo_root: found %s/%s, enabling pseudo-root\n", init->d_parent->d_name.name, init->d_name.name);
+	dput(sbin);
+	dput(init);
+	return root;
+
+	/* Alternate root not found ... */
+out_dput_init:
+	dput(init);
+out_dput_sbin:
+	dput(sbin);
+out_dput:
+	dput(root);
+out_noroot:
+	return NULL;
+}
+
+
+static DECLARE_FSTYPE_DEV(umsdos_fs_type, "umsdos", UMSDOS_read_super);
+
+static int __init init_umsdos_fs (void)
+{
+	return register_filesystem (&umsdos_fs_type);
+}
+
+static void __exit exit_umsdos_fs (void)
+{
+	unregister_filesystem (&umsdos_fs_type);
+}
+
+EXPORT_NO_SYMBOLS;
+
+module_init(init_umsdos_fs)
+module_exit(exit_umsdos_fs)
+MODULE_LICENSE("GPL");
diff --git a/fs/umsdos/ioctl.c b/fs/umsdos/ioctl.c
new file mode 100644
index 00000000000000..13cd83d756f4ff
--- /dev/null
+++ b/fs/umsdos/ioctl.c
@@ -0,0 +1,439 @@
+/*
+ *  linux/fs/umsdos/ioctl.c
+ *
+ *  Written 1993 by Jacques Gelinas
+ *
+ *  Extended MS-DOS ioctl directory handling functions
+ */
+
+#include <asm/uaccess.h>
+#include <linux/errno.h>
+#include <linux/mm.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/msdos_fs.h>
+#include <linux/umsdos_fs.h>
+
+struct UMSDOS_DIR_ONCE {
+	struct dirent *ent;
+	int count;
+};
+
+/*
+ * Record a single entry the first call.
+ * Return -EINVAL the next one.
+ */
+static int umsdos_ioctl_fill (
+				     void *buf,
+				     const char *name,
+				     int name_len,
+				     loff_t offset,
+				     ino_t ino,
+				     unsigned type)
+{
+	int ret = -EINVAL;
+	struct UMSDOS_DIR_ONCE *d = (struct UMSDOS_DIR_ONCE *) buf;
+
+	if (d->count == 0) {
+		copy_to_user (d->ent->d_name, name, name_len);
+		put_user ('\0', d->ent->d_name + name_len);
+		put_user (name_len, &d->ent->d_reclen);
+		put_user (ino, &d->ent->d_ino);
+		put_user (offset, &d->ent->d_off);
+		d->count = 1;
+		ret = 0;
+	}
+	return ret;
+}
+
+
+/*
+ * Perform special function on a directory
+ */
+/* #Specification: ioctl / prototypes
+ * The official prototype for the umsdos ioctl on directory
+ * is:
+ * 
+ * int ioctl (
+ * int fd,          // File handle of the directory
+ * int cmd, // command
+ * struct umsdos_ioctl *data)
+ * 
+ * The struct and the commands are defined in linux/umsdos_fs.h.
+ * 
+ * umsdos_progs/umsdosio.c provide an interface in C++ to all
+ * these ioctl. umsdos_progs/udosctl is a small utility showing
+ * all this.
+ * 
+ * These ioctl generally allow one to work on the EMD or the
+ * DOS directory independently. These are essential to implement
+ * the synchronise.
+ */
+int UMSDOS_ioctl_dir(struct inode *dir, struct file *filp, unsigned int cmd,
+			unsigned long data_ptr)
+{
+	struct dentry *dentry = filp->f_dentry;
+	struct umsdos_ioctl *idata = (struct umsdos_ioctl *) data_ptr;
+	int ret;
+	struct umsdos_ioctl data;
+
+Printk(("UMSDOS_ioctl_dir: %s/%s, cmd=%d, data=%08lx\n",
+dentry->d_parent->d_name.name, dentry->d_name.name, cmd, data_ptr));
+
+	/* forward non-umsdos ioctls - this hopefully doesn't cause conflicts */
+	if (cmd != UMSDOS_GETVERSION
+	    && cmd != UMSDOS_READDIR_DOS
+	    && cmd != UMSDOS_READDIR_EMD
+	    && cmd != UMSDOS_INIT_EMD
+	    && cmd != UMSDOS_CREAT_EMD
+	    && cmd != UMSDOS_RENAME_DOS
+	    && cmd != UMSDOS_UNLINK_EMD
+	    && cmd != UMSDOS_UNLINK_DOS
+	    && cmd != UMSDOS_RMDIR_DOS
+	    && cmd != UMSDOS_STAT_DOS
+	    && cmd != UMSDOS_DOS_SETUP)
+		return fat_dir_ioctl (dir, filp, cmd, data_ptr);
+
+	/* #Specification: ioctl / access
+	 * Only root (effective id) is allowed to do IOCTL on directory
+	 * in UMSDOS. EPERM is returned for other user.
+	 */
+	/*
+	 * Well, not all cases require write access, but it simplifies
+	 * the code, and let's face it, there is only one client (umssync)
+	 * for all this.
+	 */
+	ret = verify_area (VERIFY_WRITE, (void *) data_ptr, 
+				sizeof (struct umsdos_ioctl));
+	if (ret < 0)
+		goto out;
+
+	ret = -EPERM;
+	if (current->euid != 0 && cmd != UMSDOS_GETVERSION)
+		goto out;
+
+	ret = -EINVAL;
+	if (cmd == UMSDOS_GETVERSION) {
+		/* #Specification: ioctl / UMSDOS_GETVERSION
+		 * The field version and release of the structure
+		 * umsdos_ioctl are filled with the version and release
+		 * number of the fs code in the kernel. This will allow
+		 * some form of checking. Users won't be able to run
+		 * incompatible utility such as the synchroniser (umssync).
+		 * umsdos_progs/umsdosio.c enforce this checking.
+		 * 
+		 * Return always 0.
+		 */
+		put_user (UMSDOS_VERSION, &idata->version);
+		put_user (UMSDOS_RELEASE, &idata->release);
+		ret = 0;
+		goto out;
+	}
+	if (cmd == UMSDOS_READDIR_DOS) {
+		/* #Specification: ioctl / UMSDOS_READDIR_DOS
+		 * One entry is read from the DOS directory at the current
+		 * file position. The entry is put as is in the dos_dirent
+		 * field of struct umsdos_ioctl.
+		 * 
+		 * Return > 0 if success.
+		 */
+		struct UMSDOS_DIR_ONCE bufk;
+
+		bufk.count = 0;
+		bufk.ent = &idata->dos_dirent;
+
+		fat_readdir (filp, &bufk, umsdos_ioctl_fill);
+
+		ret = bufk.count == 1 ? 1 : 0;
+		goto out;
+	}
+	if (cmd == UMSDOS_READDIR_EMD) {
+		/* #Specification: ioctl / UMSDOS_READDIR_EMD
+		 * One entry is read from the EMD at the current
+		 * file position. The entry is put as is in the umsdos_dirent
+		 * field of struct umsdos_ioctl. The corresponding mangled
+		 * DOS entry name is put in the dos_dirent field.
+		 * 
+		 * All entries are read including hidden links. Blank
+		 * entries are skipped.
+		 * 
+		 * Return > 0 if success.
+		 */
+		struct dentry *demd;
+		loff_t pos = filp->f_pos;
+
+		/* The absence of the EMD is simply seen as an EOF */
+		demd = umsdos_get_emd_dentry(dentry);
+		ret = PTR_ERR(demd);
+		if (IS_ERR(demd))
+			goto out;
+		ret = 0;
+		if (!demd->d_inode)
+			goto read_dput;
+
+		while (pos < demd->d_inode->i_size) {
+			off_t f_pos = pos;
+			struct umsdos_dirent entry;
+			struct umsdos_info info;
+
+			ret = umsdos_emd_dir_readentry (demd, &pos, &entry);
+
+			if (ret == -ENAMETOOLONG) {
+				printk (KERN_INFO "Fixing EMD entry with invalid size -- zeroing out\n");
+				memset (&info, 0, sizeof (info));
+				info.f_pos = f_pos;
+				info.recsize = UMSDOS_REC_SIZE;
+				ret = umsdos_writeentry (dentry, &info, 1);
+				continue;
+			}
+
+			if (ret)
+				break;
+			if (entry.name_len <= 0)
+				continue;
+
+			umsdos_parse (entry.name, entry.name_len, &info);
+			info.f_pos = f_pos;
+			umsdos_manglename (&info);
+			ret = -EFAULT;
+			if (copy_to_user (&idata->umsdos_dirent, &entry,
+							sizeof (entry)))
+				break;
+			if (copy_to_user (&idata->dos_dirent.d_name,
+							info.fake.fname,
+				 			info.fake.len + 1))
+				break;
+			ret = entry.name_len;
+			break;
+		}
+		/* update the original f_pos */
+		filp->f_pos = pos;
+	read_dput:
+		d_drop(demd);
+		dput(demd);
+		goto out;
+	}
+	if (cmd == UMSDOS_INIT_EMD) {
+		/* #Specification: ioctl / UMSDOS_INIT_EMD
+		 * The UMSDOS_INIT_EMD command makes sure the EMD
+		 * exists for a directory. If it does not, it is
+		 * created. Also, it makes sure the directory function
+		 * table (struct inode_operations) is set to the UMSDOS
+		 * semantic. This mean that umssync may be applied to
+		 * an "opened" msdos directory, and it will change behavior
+		 * on the fly.
+		 * 
+		 * Return 0 if success.
+		 */
+
+		ret = umsdos_make_emd(dentry);
+Printk(("UMSDOS_ioctl_dir: INIT_EMD %s/%s, ret=%d\n",
+dentry->d_parent->d_name.name, dentry->d_name.name, ret));
+		umsdos_setup_dir (dentry);
+		goto out;
+	}
+
+	ret = -EFAULT;
+	if (copy_from_user (&data, idata, sizeof (data)))
+		goto out;
+
+	if (cmd == UMSDOS_CREAT_EMD) {
+		/* #Specification: ioctl / UMSDOS_CREAT_EMD
+		 * The umsdos_dirent field of the struct umsdos_ioctl is used
+		 * as is to create a new entry in the EMD of the directory.
+		 * The DOS directory is not modified.
+		 * No validation is done (yet).
+		 * 
+		 * Return 0 if success.
+		 */
+		struct umsdos_info info;
+
+		/* This makes sure info.entry and info in general
+		 * is correctly initialised
+		 */
+		memcpy (&info.entry, &data.umsdos_dirent,
+			sizeof (data.umsdos_dirent));
+		umsdos_parse (data.umsdos_dirent.name
+		    ,data.umsdos_dirent.name_len, &info);
+		ret = umsdos_newentry (dentry, &info);
+		goto out;
+	}
+	else if (cmd == UMSDOS_RENAME_DOS) {
+		struct dentry *old_dentry, *new_dentry;		/* FIXME */
+
+		/* #Specification: ioctl / UMSDOS_RENAME_DOS
+		 * A file or directory is renamed in a DOS directory
+		 * (not moved across directory). The source name
+		 * is in the dos_dirent.name field and the destination
+		 * is in umsdos_dirent.name field.
+		 * 
+		 * This ioctl allows umssync to rename a mangled file
+		 * name before syncing it back in the EMD.
+		 */
+		old_dentry = umsdos_lookup_dentry (dentry, 
+						data.dos_dirent.d_name,
+						data.dos_dirent.d_reclen ,1);
+		ret = PTR_ERR(old_dentry);
+		if (IS_ERR(old_dentry))
+			goto out;
+		new_dentry = umsdos_lookup_dentry (dentry,
+						data.umsdos_dirent.name,
+						data.umsdos_dirent.name_len, 1);
+		ret = PTR_ERR(new_dentry);
+		if (!IS_ERR(new_dentry)) {
+printk("umsdos_ioctl: renaming %s/%s to %s/%s\n",
+old_dentry->d_parent->d_name.name, old_dentry->d_name.name,
+new_dentry->d_parent->d_name.name, new_dentry->d_name.name);
+			ret = msdos_rename (dir, old_dentry, dir, new_dentry);
+			d_drop(new_dentry);
+			d_drop(old_dentry);
+			dput(new_dentry);
+		}
+		dput(old_dentry);
+		goto out;
+	}
+	else if (cmd == UMSDOS_UNLINK_EMD) {
+		/* #Specification: ioctl / UMSDOS_UNLINK_EMD
+		 * The umsdos_dirent field of the struct umsdos_ioctl is used
+		 * as is to remove an entry from the EMD of the directory.
+		 * No validation is done (yet). The mode field is used
+		 * to validate S_ISDIR or S_ISREG.
+		 * 
+		 * Return 0 if success.
+		 */
+		struct umsdos_info info;
+
+		/* This makes sure info.entry and info in general
+		 * is correctly initialised
+		 */
+		memcpy (&info.entry, &data.umsdos_dirent,
+			sizeof (data.umsdos_dirent));
+		umsdos_parse (data.umsdos_dirent.name,
+				data.umsdos_dirent.name_len, &info);
+		ret = umsdos_delentry (dentry, &info,
+				S_ISDIR (data.umsdos_dirent.mode));
+		if (ret) {
+			printk(KERN_WARNING
+				"umsdos_ioctl: delentry %s/%s failed, ret=%d\n",
+				dentry->d_name.name, info.entry.name, ret);
+		}
+		goto out;
+	}
+	else if (cmd == UMSDOS_UNLINK_DOS) {
+		struct dentry *temp;
+
+		/* #Specification: ioctl / UMSDOS_UNLINK_DOS
+		 * The dos_dirent field of the struct umsdos_ioctl is used to
+		 * execute a msdos_unlink operation. The d_name and d_reclen
+		 * fields are used.
+		 * 
+		 * Return 0 if success.
+		 */
+		temp = umsdos_lookup_dentry(dentry, data.dos_dirent.d_name,
+						data.dos_dirent.d_reclen, 1);
+		ret = PTR_ERR(temp);
+		if (IS_ERR(temp))
+			goto out;
+		ret = -ENOENT;
+		if (temp->d_inode) {
+			ret = -EISDIR;
+			if (!S_ISDIR(temp->d_inode->i_mode))
+				ret = msdos_unlink (dir, temp);
+			if (!ret)
+				d_delete(temp);
+		}
+		dput (temp);
+		goto out;
+	}
+	else if (cmd == UMSDOS_RMDIR_DOS) {
+		struct dentry *temp;
+
+		/* #Specification: ioctl / UMSDOS_RMDIR_DOS
+		 * The dos_dirent field of the struct umsdos_ioctl is used to
+		 * execute a msdos_rmdir operation. The d_name and d_reclen
+		 * fields are used.
+		 * 
+		 * Return 0 if success.
+		 */
+		temp = umsdos_lookup_dentry(dentry, data.dos_dirent.d_name,
+					    data.dos_dirent.d_reclen, 1);
+		ret = PTR_ERR(temp);
+		if (IS_ERR(temp))
+			goto out;
+		ret = -ENOENT;
+		if (temp->d_inode) {
+			ret = -ENOTDIR;
+			if (S_ISDIR(temp->d_inode->i_mode))
+				ret = msdos_rmdir (dir, temp);
+			if (!ret)
+				d_delete(temp);
+		}
+		dput (temp);
+		goto out;
+
+	} else if (cmd == UMSDOS_STAT_DOS) {
+		/* #Specification: ioctl / UMSDOS_STAT_DOS
+		 * The dos_dirent field of the struct umsdos_ioctl is
+		 * used to execute a stat operation in the DOS directory.
+		 * The d_name and d_reclen fields are used.
+		 * 
+		 * The following field of umsdos_ioctl.stat are filled.
+		 * 
+		 * st_ino,st_mode,st_size,st_atime,st_mtime,st_ctime,
+		 * Return 0 if success.
+		 */
+		struct dentry *dret;
+		struct inode *inode;
+
+		dret = umsdos_lookup_dentry(dentry, data.dos_dirent.d_name,
+					    data.dos_dirent.d_reclen, 1);
+		ret = PTR_ERR(dret);
+		if (IS_ERR(dret))
+			goto out;
+		ret = -ENOENT;
+		inode = dret->d_inode;
+		if (inode) {
+			data.stat.st_ino = inode->i_ino;
+			data.stat.st_mode = inode->i_mode;
+			data.stat.st_size = inode->i_size;
+			data.stat.st_atime = inode->i_atime;
+			data.stat.st_ctime = inode->i_ctime;
+			data.stat.st_mtime = inode->i_mtime;
+			ret = -EFAULT;
+			if (!copy_to_user (&idata->stat, &data.stat, 
+						sizeof (data.stat)))
+				ret = 0;
+		}
+		dput(dret);
+		goto out;
+	}
+	else if (cmd == UMSDOS_DOS_SETUP) {
+		/* #Specification: ioctl / UMSDOS_DOS_SETUP
+		 * The UMSDOS_DOS_SETUP ioctl allow changing the
+		 * default permission of the MS-DOS filesystem driver
+		 * on the fly.  The MS-DOS driver applies global permissions
+		 * to every file and directory. Normally these permissions
+		 * are controlled by a mount option. This is not
+		 * available for root partition, so a special utility
+		 * (umssetup) is provided to do this, normally in
+		 * /etc/rc.local.
+		 * 
+		 * Be aware that this applies ONLY to MS-DOS directories
+		 * (those without EMD --linux-.---). Umsdos directory
+		 * have independent (standard) permission for each
+		 * and every file.
+		 * 
+		 * The field umsdos_dirent provide the information needed.
+		 * umsdos_dirent.uid and gid sets the owner and group.
+		 * umsdos_dirent.mode set the permissions flags.
+		 */
+		dir->i_sb->u.msdos_sb.options.fs_uid = data.umsdos_dirent.uid;
+		dir->i_sb->u.msdos_sb.options.fs_gid = data.umsdos_dirent.gid;
+		dir->i_sb->u.msdos_sb.options.fs_umask = data.umsdos_dirent.mode;
+		ret = 0;
+	}
+out:
+	Printk (("ioctl %d, returning %d\n", cmd, ret));
+	return ret;
+}
diff --git a/fs/umsdos/mangle.c b/fs/umsdos/mangle.c
new file mode 100644
index 00000000000000..a1feba0eaae121
--- /dev/null
+++ b/fs/umsdos/mangle.c
@@ -0,0 +1,522 @@
+/*
+ *  linux/fs/umsdos/mangle.c
+ *
+ *      Written 1993 by Jacques Gelinas 
+ *
+ * Control the mangling of file name to fit msdos name space.
+ * Many optimisations by GLU == dglaude@is1.vub.ac.be (Glaude David)
+ */
+
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/umsdos_fs.h>
+
+/* (This file is used outside of the kernel) */
+#ifndef __KERNEL__
+#define KERN_WARNING
+#endif
+
+/*
+ * Complete the mangling of the MSDOS fake name
+ * based on the position of the entry in the EMD file.
+ * 
+ * Simply complete the job of umsdos_parse; fill the extension.
+ * 
+ * Beware that info->f_pos must be set.
+ */
+void umsdos_manglename (struct umsdos_info *info)
+{
+	if (info->msdos_reject) {
+		/* #Specification: file name / non MSDOS conforming / mangling
+		 * Each non MSDOS conforming file has a special extension
+		 * build from the entry position in the EMD file.
+		 * 
+		 * This number is then transform in a base 32 number, where
+		 * each digit is expressed like hexadecimal number, using
+		 * digit and letter, except it uses 22 letters from 'a' to 'v'.
+		 * The number 32 comes from 2**5. It is faster to split a binary
+		 * number using a base which is a power of two. And I was 32
+		 * when I started this project. Pick your answer :-) .
+		 * 
+		 * If the result is '0', it is replace with '_', simply
+		 * to make it odd.
+		 * 
+		 * This is true for the first two character of the extension.
+		 * The last one is taken from a list of odd character, which
+		 * are:
+		 * 
+		 * { } ( ) ! ` ^ & @
+		 * 
+		 * With this scheme, we can produce 9216 ( 9* 32 * 32)
+		 * different extensions which should not clash with any useful
+		 * extension already popular or meaningful. Since most directory
+		 * have much less than 32 * 32 files in it, the first character
+		 * of the extension of any mangled name will be {.
+		 * 
+		 * Here are the reason to do this (this kind of mangling).
+		 * 
+		 * -The mangling is deterministic. Just by the extension, we
+		 * are able to locate the entry in the EMD file.
+		 * 
+		 * -By keeping to beginning of the file name almost unchanged,
+		 * we are helping the MSDOS user.
+		 * 
+		 * -The mangling produces names not too ugly, so an msdos user
+		 * may live with it (remember it, type it, etc...).
+		 * 
+		 * -The mangling produces names ugly enough so no one will
+		 * ever think of using such a name in real life. This is not
+		 * fool proof. I don't think there is a total solution to this.
+		 */
+		int entry_num;
+		char *pt = info->fake.fname + info->fake.len;
+		/* lookup for encoding the last character of the extension 
+		 * It contains valid character after the ugly one to make sure 
+		 * even if someone overflows the 32 * 32 * 9 limit, it still 
+		 * does something 
+		 */
+#define SPECIAL_MANGLING '{','}','(',')','!','`','^','&','@'
+		static char lookup3[] =
+		{
+			SPECIAL_MANGLING,
+		/* This is the start of lookup12 */
+			'_', '1', '2', '3', '4', '5', '6', '7', '8', '9',
+			'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
+			'p', 'q', 'r', 's', 't', 'u', 'v'
+		};
+
+#define lookup12 (lookup3+9)
+		entry_num = info->f_pos / UMSDOS_REC_SIZE;
+		if (entry_num > (9* 32 * 32)){
+			printk (KERN_WARNING "UMSDOS: more than 9216 files in a directory.\n"
+				"This may break the mangling strategy.\n"
+				"Not a killer problem. See doc.\n");
+		}
+		*pt++ = '.';
+		*pt++ = lookup3 [(entry_num >> 10) & 31];
+		*pt++ = lookup12[(entry_num >> 5) & 31];
+		*pt++ = lookup12[entry_num & 31];
+		*pt = '\0';		/* help doing printk */	
+		info->fake.len += 4;
+		info->msdos_reject = 0;		/* Avoid mangling twice */
+	}
+}
+
+/*
+ * Evaluate the record size needed to store of name of len character.
+ * The value returned is a multiple of UMSDOS_REC_SIZE.
+ */
+int umsdos_evalrecsize (int len)
+{
+	struct umsdos_dirent dirent;
+	int nbrec = 1 + ((len - 1 + (dirent.name - (char *) &dirent))
+			 / UMSDOS_REC_SIZE);
+
+	return nbrec * UMSDOS_REC_SIZE;
+	/*
+	 * GLU        This should be inlined or something to speed it up to the max.
+	 * GLU        nbrec is absolutely not needed to return the value.
+	 */
+}
+#ifdef TEST
+int umsdos_evalrecsize_old (int len)
+{
+	struct umsdos_dirent dirent;
+	int size = len + (dirent.name - (char *) &dirent);
+	int nbrec = size / UMSDOS_REC_SIZE;
+	int extra = size % UMSDOS_REC_SIZE;
+
+	if (extra > 0)
+		nbrec++;
+	return nbrec * UMSDOS_REC_SIZE;
+}
+#endif
+
+
+/*
+ * Fill the struct info with the full and msdos name of a file
+ * Return 0 if all is OK, a negative error code otherwise.
+ */
+int umsdos_parse (
+			 const char *fname,
+			 int len,
+			 struct umsdos_info *info)
+{
+	int ret = -ENAMETOOLONG;
+
+	/* #Specification: file name / too long
+	 * If a file name exceed UMSDOS maxima, the file name is silently
+	 * truncated. This makes it conformant with the other file system
+	 * of Linux (minix and ext2 at least).
+	 */
+	if (len > UMSDOS_MAXNAME)
+		len = UMSDOS_MAXNAME;
+	{
+		const char *firstpt = NULL;	/* First place we saw a "." in fname */
+
+		/* #Specification: file name / non MSDOS conforming / base length 0
+		 * file names beginning with a period '.' are invalid for MS-DOS.
+		 * It needs absolutely a base name. So the file name is mangled
+		 */
+		int ivldchar = fname[0] == '.';		/* At least one invalid character */
+		int msdos_len = len;
+		int base_len;
+
+		/*
+		 * cardinal_per_size tells if there exists at least one
+		 * DOS pseudo device on length n.  See the test below.
+		 */
+		static const char cardinal_per_size[9] =
+		{
+			0, 0, 0, 1, 1, 0, 1, 0, 1
+		};
+
+		/*
+		 * lkp translate all character to acceptable character (for DOS).
+		 * When lkp[n] == n, it means also it is an acceptable one.
+		 * So it serves both as a flag and as a translator.
+		 */
+		static char lkp[256];
+		static char is_init = 0;
+
+		if (!is_init) {
+			/*
+			 * Initialisation of the array is easier and less error
+                         * prone like this.
+			 */
+			int i;
+			static const char *spc = "\"*+,/:;<=>?[\\]|~";
+
+			is_init = 1;
+			for (i = 0; i <= 32; i++)
+				lkp[i] = '#';
+			for (i = 33; i < 'A'; i++)
+				lkp[i] = (char) i;
+			for (i = 'A'; i <= 'Z'; i++)
+				lkp[i] = (char) (i + ('a' - 'A'));
+			for (i = 'Z' + 1; i < 127; i++)
+				lkp[i] = (char) i;
+			for (i = 128; i < 256; i++)
+				lkp[i] = '#';
+
+			lkp['.'] = '_';
+			while (*spc != '\0')
+				lkp[(unsigned char) (*spc++)] = '#';
+		}
+		/*  GLU
+		 * File names longer than 8+'.'+3 are invalid for MS-DOS,
+		 * so the file name is to be mangled--no further test is needed.
+		 * This speeds up handling of long names.
+		 * The position of the last point is no more necessary anyway.
+		 */
+		if (len <= (8 + 1 + 3)) {
+			const char *pt = fname;
+			const char *endpt = fname + len;
+
+			while (pt < endpt) {
+				if (*pt == '.') {
+					if (firstpt != NULL) {
+						/* 2 . in a file name. Reject */
+						ivldchar = 1;
+						break;
+					} else {
+						int extlen = (int) (endpt - pt);
+
+						firstpt = pt;
+						if (firstpt - fname > 8) {
+							/* base name longer than 8: reject */
+							ivldchar = 1;
+							break;
+						} else if (extlen > 4) {
+							/* Extension longer than 4 (including .): reject */
+							ivldchar = 1;
+							break;
+						} else if (extlen == 1) {
+							/* #Specification: file name / non MSDOS conforming / last char == .
+							 * If the last character of a file name is
+							 * a period, mangling is applied. MS-DOS does
+							 * not support those file names.
+							 */
+							ivldchar = 1;
+							break;
+						} else if (extlen == 4) {
+							/* #Specification: file name / non MSDOS conforming / mangling clash
+							 * To avoid clash with    the umsdos mangling, any file
+							 * with a special character as the first character
+							 * of the extension will be mangled. This solves the
+							 * following problem:
+							 * 
+							 * #
+							 * touch FILE
+							 * # FILE is invalid for DOS, so mangling is applied
+							 * # file.{_1 is created in the DOS directory
+							 * touch file.{_1
+							 * # To UMSDOS file point to a single DOS entry.
+							 * # So file.{_1 has to be mangled.
+							 * #
+							 */
+							static char special[] =
+							{
+								SPECIAL_MANGLING, '\0'
+							};
+
+							if (strchr (special, firstpt[1]) != NULL) {
+								ivldchar = 1;
+								break;
+							}
+						}
+					}
+				} else if (lkp[(unsigned char) (*pt)] != *pt) {
+					ivldchar = 1;
+					break;
+				}
+				pt++;
+			}
+		} else {
+			ivldchar = 1;
+		}
+		if (ivldchar
+		    || (firstpt == NULL && len > 8)
+		    || (len == UMSDOS_EMD_NAMELEN
+			&& memcmp (fname, UMSDOS_EMD_FILE, UMSDOS_EMD_NAMELEN) == 0)) {
+			/* #Specification: file name / --linux-.---
+			 * The name of the EMD file --linux-.--- is map to a mangled
+			 * name. So UMSDOS does not restrict its use.
+			 */
+			/* #Specification: file name / non MSDOS conforming / mangling
+			 * Non MSDOS conforming file names must use some alias to fit
+			 * in the MSDOS name space.
+			 * 
+			 * The strategy is simple. The name is simply truncated to
+			 * 8 char. points are replace with underscore and a
+			 * number is given as an extension. This number correspond
+			 * to the entry number in the EMD file. The EMD file
+			 * only need to carry the real name.
+			 * 
+			 * Upper case is also converted to lower case.
+			 * Control character are converted to #.
+			 * Spaces are converted to #.
+			 * The following characters are also converted to #.
+			 * #
+			 * " * + , / : ; < = > ? [ \ ] | ~
+			 * #
+			 * 
+			 * Sometimes the problem is not in MS-DOS itself but in
+			 * command.com.
+			 */
+			int i;
+			char *pt = info->fake.fname;
+
+			base_len = msdos_len = (msdos_len > 8) ? 8 : msdos_len;
+			/*
+			 * There is no '.' any more so we know for a fact that
+			 * the base length is the length.
+			 */
+			memcpy (info->fake.fname, fname, msdos_len);
+			for (i = 0; i < msdos_len; i++, pt++)
+				*pt = lkp[(unsigned char) (*pt)];
+			*pt = '\0';	/* GLU  We force null termination. */
+			info->msdos_reject = 1;
+			/*
+			 * The numeric extension is added only when we know
+			 * the position in the EMD file, in umsdos_newentry(),
+			 * umsdos_delentry(), and umsdos_findentry().
+			 * See umsdos_manglename().
+			 */
+		} else {
+			/* Conforming MSDOS file name */
+			strncpy (info->fake.fname, fname, len);
+			info->msdos_reject = 0;
+			base_len = firstpt != NULL ? (int) (firstpt - fname) : len;
+		}
+		if (cardinal_per_size[base_len]) {
+			/* #Specification: file name / MSDOS devices / mangling
+			 * To avoid unreachable file from MS-DOS, any MS-DOS conforming
+			 * file with a basename equal to one of the MS-DOS pseudo
+			 * devices will be mangled.
+			 * 
+			 * If a file such as "prn" was created, it would be unreachable
+			 * under MS-DOS because "prn" is assumed to be the printer, even
+			 * if the file does have an extension.
+			 * 
+			 * Since the extension is unimportant to MS-DOS, we must patch
+			 * the basename also. We simply insert a minus '-'. To avoid
+			 * conflict with valid file with a minus in front (such as
+			 * "-prn"), we add an mangled extension like any other
+			 * mangled file name.
+			 * 
+			 * Here is the list of DOS pseudo devices:
+			 * 
+			 * #
+			 * "prn","con","aux","nul",
+			 * "lpt1","lpt2","lpt3","lpt4",
+			 * "com1","com2","com3","com4",
+			 * "clock$"
+			 * #
+			 * 
+			 * and some standard ones for common DOS programs
+			 * 
+			 * "emmxxxx0","xmsxxxx0","setverxx"
+			 * 
+			 * (Thanks to Chris Hall <cah17@phoenix.cambridge.ac.uk>
+			 * for pointing these out to me).
+			 * 
+			 * Is there one missing?
+			 */
+			/* This table must be ordered by length */
+			static const char *tbdev[] =
+			{
+				"prn", "con", "aux", "nul",
+				"lpt1", "lpt2", "lpt3", "lpt4",
+				"com1", "com2", "com3", "com4",
+				"clock$",
+				"emmxxxx0", "xmsxxxx0", "setverxx"
+			};
+
+			/* Tell where to find in tbdev[], the first name of */
+			/* a certain length */
+			static const char start_ind_dev[9] =
+			{
+				0, 0, 0, 4, 12, 12, 13, 13, 16
+			};
+			char basen[9];
+			int i;
+
+			for (i = start_ind_dev[base_len - 1]; i < start_ind_dev[base_len]; i++) {
+				if (memcmp (info->fake.fname, tbdev[i], base_len) == 0) {
+					memcpy (basen, info->fake.fname, base_len);
+					basen[base_len] = '\0';		/* GLU  We force null termination. */
+					/*
+					 * GLU        We do that only if necessary; we try to do the
+					 * GLU        simple thing in the usual circumstance. 
+					 */
+					info->fake.fname[0] = '-';
+					strcpy (info->fake.fname + 1, basen);	/* GLU  We already guaranteed a null would be at the end. */
+					msdos_len = (base_len == 8) ? 8 : base_len + 1;
+					info->msdos_reject = 1;
+					break;
+				}
+			}
+		}
+		info->fake.fname[msdos_len] = '\0';	/* Help doing printk */
+		/* GLU      This zero should (always?) be there already. */
+		info->fake.len = msdos_len;
+		/* Why not use info->fake.len everywhere? Is it longer?
+                 */
+		memcpy (info->entry.name, fname, len);
+		info->entry.name[len] = '\0';	/* for printk */
+		info->entry.name_len = len;
+		ret = 0;
+	}
+	/*
+	 * Evaluate how many records are needed to store this entry.
+	 */
+	info->recsize = umsdos_evalrecsize (len);
+	return ret;
+}
+
+#ifdef TEST
+
+struct MANG_TEST {
+	char *fname;		/* Name to validate */
+	int msdos_reject;	/* Expected msdos_reject flag */
+	char *msname;		/* Expected msdos name */
+};
+
+struct MANG_TEST tb[] =
+{
+	"hello", 0, "hello",
+	"hello.1", 0, "hello.1",
+	"hello.1_", 0, "hello.1_",
+	"prm", 0, "prm",
+
+#ifdef PROPOSITION
+	"HELLO", 1, "hello",
+	"Hello.1", 1, "hello.1",
+	"Hello.c", 1, "hello.c",
+#else
+/*
+ * I find the three examples below very unfortunate.  I propose to
+ * convert them to lower case in a quick preliminary pass, then test
+ * whether there are other troublesome characters.  I have not made
+ * this change, because it is not easy, but I wanted to mention the 
+ * principle.  Obviously something like that would increase the chance
+ * of collisions, for example between "HELLO" and "Hello", but these
+ * can be treated elsewhere along with the other collisions.
+ */
+
+	"HELLO", 1, "hello",
+	"Hello.1", 1, "hello_1",
+	"Hello.c", 1, "hello_c",
+#endif
+
+	"hello.{_1", 1, "hello_{_",
+	"hello\t", 1, "hello#",
+	"hello.1.1", 1, "hello_1_",
+	"hel,lo", 1, "hel#lo",
+	"Salut.Tu.vas.bien?", 1, "salut_tu",
+	".profile", 1, "_profile",
+	".xv", 1, "_xv",
+	"toto.", 1, "toto_",
+	"clock$.x", 1, "-clock$",
+	"emmxxxx0", 1, "-emmxxxx",
+	"emmxxxx0.abcd", 1, "-emmxxxx",
+	"aux", 1, "-aux",
+	"prn", 1, "-prn",
+	"prn.abc", 1, "-prn",
+	"PRN", 1, "-prn",
+  /* 
+   * GLU        WARNING:  the results of these are different with my version
+   * GLU        of mangling compared to the original one.
+   * GLU        CAUSE:  the manner of calculating the baselen variable.
+   * GLU                For you they are always 3.
+   * GLU                For me they are respectively 7, 8, and 8.
+
+   */
+	"PRN.abc", 1, "prn_abc",
+	"Prn.abcd", 1, "prn_abcd",
+	"prn.abcd", 1, "prn_abcd",
+	"Prn.abcdefghij", 1, "prn_abcd"
+};
+
+int main (int argc, char *argv[])
+{
+	int i, rold, rnew;
+
+	printf ("Testing the umsdos_parse.\n");
+	for (i = 0; i < sizeof (tb) / sizeof (tb[0]); i++) {
+		struct MANG_TEST *pttb = tb + i;
+		struct umsdos_info info;
+		int ok = umsdos_parse (pttb->fname, strlen (pttb->fname), &info);
+
+		if (strcmp (info.fake.fname, pttb->msname) != 0) {
+			printf ("**** %s -> ", pttb->fname);
+			printf ("%s <> %s\n", info.fake.fname, pttb->msname);
+		} else if (info.msdos_reject != pttb->msdos_reject) {
+			printf ("**** %s -> %s ", pttb->fname, pttb->msname);
+			printf ("%d <> %d\n", info.msdos_reject, pttb->msdos_reject);
+		} else {
+			printf ("     %s -> %s %d\n", pttb->fname, pttb->msname
+				,pttb->msdos_reject);
+		}
+	}
+	printf ("Testing the new umsdos_evalrecsize.");
+	for (i = 0; i < UMSDOS_MAXNAME; i++) {
+		rnew = umsdos_evalrecsize (i);
+		rold = umsdos_evalrecsize_old (i);
+		if (!(i % UMSDOS_REC_SIZE)) {
+			printf ("\n%d:\t", i);
+		}
+		if (rnew != rold) {
+			printf ("**** %d newres: %d != %d \n", i, rnew, rold);
+		} else {
+			printf (".");
+		}
+	}
+	printf ("\nEnd of Testing.\n");
+
+	return 0;
+}
+
+#endif
diff --git a/fs/umsdos/namei.c b/fs/umsdos/namei.c
new file mode 100644
index 00000000000000..04a76c3a83a5ab
--- /dev/null
+++ b/fs/umsdos/namei.c
@@ -0,0 +1,1130 @@
+/*
+ *  linux/fs/umsdos/namei.c
+ *
+ *      Written 1993 by Jacques Gelinas 
+ *      Inspired from linux/fs/msdos/... by Werner Almesberger
+ *
+ * Maintain and access the --linux alternate directory file.
+ */
+ /*
+  * You are in the maze of twisted functions - half of them shouldn't
+  * be here...
+  */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/fcntl.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <linux/msdos_fs.h>
+#include <linux/umsdos_fs.h>
+#include <linux/slab.h>
+
+#define UMSDOS_DIR_LOCK
+
+#ifdef UMSDOS_DIR_LOCK
+
+static inline void u_sleep_on (struct inode *dir)
+{
+	sleep_on (&dir->u.umsdos_i.dir_info.p);
+}
+
+static inline void u_wake_up (struct inode *dir)
+{
+    	wake_up (&dir->u.umsdos_i.dir_info.p);
+}
+
+/*
+ * Wait for creation exclusivity.
+ * Return 0 if the dir was already available.
+ * Return 1 if a wait was necessary.
+ * When 1 is return, it means a wait was done. It does not
+ * mean the directory is available.
+ */
+static int umsdos_waitcreate (struct inode *dir)
+{
+	int ret = 0;
+
+	if (dir->u.umsdos_i.dir_info.creating
+	    && dir->u.umsdos_i.dir_info.pid != current->pid) {
+	    	PRINTK (("creating && dir_info.pid=%lu, current->pid=%u\n", dir->u.umsdos_i.dir_info.pid, current->pid));
+	    	u_sleep_on (dir);
+		ret = 1;
+	}
+	return ret;
+}
+
+/*
+ * Wait for any lookup process to finish
+ */
+static void umsdos_waitlookup (struct inode *dir)
+{
+	while (dir->u.umsdos_i.dir_info.looking) {
+	    	u_sleep_on (dir);
+	}
+}
+
+/*
+ * Lock all other process out of this directory.
+ */
+/* #Specification: file creation / not atomic
+ * File creation is a two step process. First we create (allocate)
+ * an entry in the EMD file and then (using the entry offset) we
+ * build a unique name for MSDOS. We create this name in the msdos
+ * space.
+ * 
+ * We have to use semaphore (sleep_on/wake_up) to prevent lookup
+ * into a directory when we create a file or directory and to
+ * prevent creation while a lookup is going on. Since many lookup
+ * may happen at the same time, the semaphore is a counter.
+ * 
+ * Only one creation is allowed at the same time. This protection
+ * may not be necessary. The problem arise mainly when a lookup
+ * or a readdir is done while a file is partially created. The
+ * lookup process see that as a "normal" problem and silently
+ * erase the file from the EMD file. Normal because a file
+ * may be erased during a MSDOS session, but not removed from
+ * the EMD file.
+ * 
+ * The locking is done on a directory per directory basis. Each
+ * directory inode has its wait_queue.
+ * 
+ * For some operation like hard link, things even get worse. Many
+ * creation must occur at once (atomic). To simplify the design
+ * a process is allowed to recursively lock the directory for
+ * creation. The pid of the locking process is kept along with
+ * a counter so a second level of locking is granted or not.
+ */
+void umsdos_lockcreate (struct inode *dir)
+{
+	/*
+	 * Wait for any creation process to finish except
+	 * if we (the process) own the lock
+	 */
+	while (umsdos_waitcreate (dir) != 0);
+	dir->u.umsdos_i.dir_info.creating++;
+	dir->u.umsdos_i.dir_info.pid = current->pid;
+	umsdos_waitlookup (dir);
+}
+
+/*
+ * Lock all other process out of those two directories.
+ */
+static void umsdos_lockcreate2 (struct inode *dir1, struct inode *dir2)
+{
+	/*
+	 * We must check that both directory are available before
+	 * locking anyone of them. This is to avoid some deadlock.
+	 * Thanks to dglaude@is1.vub.ac.be (GLAUDE DAVID) for pointing
+	 * this to me.
+	 */
+	while (1) {
+		if (umsdos_waitcreate (dir1) == 0
+		    && umsdos_waitcreate (dir2) == 0) {
+			/* We own both now */
+			dir1->u.umsdos_i.dir_info.creating++;
+			dir1->u.umsdos_i.dir_info.pid = current->pid;
+			dir2->u.umsdos_i.dir_info.creating++;
+			dir2->u.umsdos_i.dir_info.pid = current->pid;
+			break;
+		}
+	}
+	umsdos_waitlookup (dir1);
+	umsdos_waitlookup (dir2);
+}
+
+/*
+ * Wait until creation is finish in this directory.
+ */
+void umsdos_startlookup (struct inode *dir)
+{
+	while (umsdos_waitcreate (dir) != 0);
+	dir->u.umsdos_i.dir_info.looking++;
+}
+
+/*
+ * Unlock the directory.
+ */
+void umsdos_unlockcreate (struct inode *dir)
+{
+	dir->u.umsdos_i.dir_info.creating--;
+	if (dir->u.umsdos_i.dir_info.creating < 0) {
+		printk ("UMSDOS: dir->u.umsdos_i.dir_info.creating < 0: %d"
+			,dir->u.umsdos_i.dir_info.creating);
+	}
+    	u_wake_up (dir);
+}
+
+/*
+ * Tell directory lookup is over.
+ */
+void umsdos_endlookup (struct inode *dir)
+{
+	dir->u.umsdos_i.dir_info.looking--;
+	if (dir->u.umsdos_i.dir_info.looking < 0) {
+		printk ("UMSDOS: dir->u.umsdos_i.dir_info.looking < 0: %d"
+			,dir->u.umsdos_i.dir_info.looking);
+	}
+    	u_wake_up (dir);
+}
+
+#else
+static void umsdos_lockcreate (struct inode *dir)
+{
+}
+static void umsdos_lockcreate2 (struct inode *dir1, struct inode *dir2)
+{
+}
+void umsdos_startlookup (struct inode *dir)
+{
+}
+static void umsdos_unlockcreate (struct inode *dir)
+{
+}
+void umsdos_endlookup (struct inode *dir)
+{
+}
+
+#endif
+
+static int umsdos_nevercreat (struct inode *dir, struct dentry *dentry,
+				int errcod)
+{
+	int ret = 0;
+
+	if (umsdos_is_pseudodos (dir, dentry)) {
+		/* #Specification: pseudo root / any file creation /DOS
+		 * The pseudo sub-directory /DOS can't be created!
+		 * EEXIST is returned.
+		 * 
+		 * The pseudo sub-directory /DOS can't be removed!
+		 * EPERM is returned.
+		 */
+		ret = errcod;
+	}
+	return ret;
+}
+
+/*
+ * Add a new file (ordinary or special) into the alternate directory.
+ * The file is added to the real MSDOS directory. If successful, it
+ * is then added to the EMD file.
+ * 
+ * Return the status of the operation. 0 mean success.
+ *
+ * #Specification: create / file exists in DOS
+ * Here is a situation: we are trying to create a file with
+ * UMSDOS. The file is unknown to UMSDOS but already
+ * exists in the DOS directory.
+ * 
+ * Here is what we are NOT doing:
+ * 
+ * We could silently assume that everything is fine
+ * and allows the creation to succeed.
+ * 
+ * It is possible not all files in the partition
+ * are meant to be visible from linux. By trying to create
+ * those file in some directory, one user may get access
+ * to those file without proper permissions. Looks like
+ * a security hole to me. Off course sharing a file system
+ * with DOS is some kind of security hole :-)
+ * 
+ * So ?
+ * 
+ * We return EEXIST in this case.
+ * The same is true for directory creation.
+ */
+static int umsdos_create_any (struct inode *dir, struct dentry *dentry,
+				int mode, int rdev, char flags)
+{
+	struct dentry *fake;
+	struct inode *inode;
+	int ret;
+	struct umsdos_info info;
+
+	ret = umsdos_nevercreat (dir, dentry, -EEXIST);
+	if (ret)
+		goto out;
+
+	ret = umsdos_parse (dentry->d_name.name, dentry->d_name.len, &info);
+	if (ret)
+		goto out;
+
+	info.entry.mode = mode;
+	info.entry.rdev = rdev;
+	info.entry.flags = flags;
+	info.entry.uid = current->fsuid;
+	info.entry.gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid;
+	info.entry.ctime = info.entry.atime = info.entry.mtime = CURRENT_TIME;
+	info.entry.nlink = 1;
+	ret = umsdos_newentry (dentry->d_parent, &info);
+	if (ret)
+		goto out;
+
+	/* do a real lookup to get the short name dentry */
+	fake = umsdos_covered(dentry->d_parent, info.fake.fname, info.fake.len);
+	ret = PTR_ERR(fake);
+	if (IS_ERR(fake))
+		goto out_remove;
+
+	/* should not exist yet ... */
+	ret = -EEXIST;
+	if (fake->d_inode)
+		goto out_remove_dput;
+
+	ret = msdos_create (dir, fake, S_IFREG | 0777);
+	if (ret)
+		goto out_remove_dput;
+
+	inode = fake->d_inode;
+	atomic_inc(&inode->i_count);
+	d_instantiate (dentry, inode);
+	dput(fake);
+	if (atomic_read(&inode->i_count) > 1) {
+		printk(KERN_WARNING
+			"umsdos_create_any: %s/%s, ino=%ld, icount=%d??\n",
+			dentry->d_parent->d_name.name, dentry->d_name.name,
+			inode->i_ino, atomic_read(&inode->i_count));
+	}
+	umsdos_lookup_patch_new(dentry, &info);
+
+out:
+	return ret;
+
+	/* Creation failed ... remove the EMD entry */
+out_remove_dput:
+	dput(fake);
+out_remove:
+	if (ret == -EEXIST)
+		printk(KERN_WARNING "UMSDOS: out of sync, deleting %s/%s\n",
+			dentry->d_parent->d_name.name, info.fake.fname);
+	umsdos_delentry (dentry->d_parent, &info, S_ISDIR (info.entry.mode));
+	goto out;
+}
+
+/*
+ * Add a new file into the alternate directory.
+ * The file is added to the real MSDOS directory. If successful, it
+ * is then added to the EMD file.
+ * 
+ * Return the status of the operation. 0 mean success.
+ */
+int UMSDOS_create (struct inode *dir, struct dentry *dentry, int mode)
+{
+	return umsdos_create_any (dir, dentry, mode, 0, 0);
+}
+
+
+/*
+ * Initialise the new_entry from the old for a rename operation.
+ * (Only useful for umsdos_rename_f() below).
+ */
+static void umsdos_ren_init (struct umsdos_info *new_info,
+			     struct umsdos_info *old_info)
+{
+	new_info->entry.mode = old_info->entry.mode;
+	new_info->entry.rdev = old_info->entry.rdev;
+	new_info->entry.uid = old_info->entry.uid;
+	new_info->entry.gid = old_info->entry.gid;
+	new_info->entry.ctime = old_info->entry.ctime;
+	new_info->entry.atime = old_info->entry.atime;
+	new_info->entry.mtime = old_info->entry.mtime;
+	new_info->entry.flags = old_info->entry.flags;
+	new_info->entry.nlink = old_info->entry.nlink;
+}
+
+/*
+ * Rename a file (move) in the file system.
+ */
+ 
+static int umsdos_rename_f (struct inode *old_dir, struct dentry *old_dentry,
+			    struct inode *new_dir, struct dentry *new_dentry,
+			    int flags)
+{
+	struct inode *old_inode = old_dentry->d_inode;
+	struct dentry *old, *new, *old_emd;
+	int err, ret;
+	struct umsdos_info old_info;
+	struct umsdos_info new_info;
+
+ 	ret = -EPERM;
+	err = umsdos_parse (old_dentry->d_name.name,
+				old_dentry->d_name.len, &old_info);
+	if (err)
+		goto out;
+	err = umsdos_parse (new_dentry->d_name.name,
+				new_dentry->d_name.len, &new_info);
+	if (err)
+		goto out;
+
+	/* Get the EMD dentry for the old parent */
+	old_emd = umsdos_get_emd_dentry(old_dentry->d_parent);
+	ret = PTR_ERR(old_emd);
+	if (IS_ERR(old_emd))
+		goto out;
+
+	umsdos_lockcreate2 (old_dir, new_dir);
+
+	ret = umsdos_findentry(old_emd->d_parent, &old_info, 0);
+	if (ret)
+		goto out_unlock;
+
+	err = umsdos_findentry(new_dentry->d_parent, &new_info, 0);
+	if (err == 0) {
+		/* check whether it _really_ exists ... */
+		ret = -EEXIST;
+		if (new_dentry->d_inode)
+			goto out_unlock;
+
+		/* bogus lookup? complain and fix up the EMD ... */
+		printk(KERN_WARNING
+			"umsdos_rename_f: entry %s/%s exists, inode NULL??\n",
+			new_dentry->d_parent->d_name.name, new_info.entry.name);
+		err = umsdos_delentry(new_dentry->d_parent, &new_info,
+					S_ISDIR(new_info.entry.mode));
+	}
+
+	umsdos_ren_init (&new_info, &old_info);
+	if (flags)
+		new_info.entry.flags = flags;
+	ret = umsdos_newentry (new_dentry->d_parent, &new_info);
+	if (ret)
+		goto out_unlock;
+
+	/* If we're moving a hardlink, drop it first */
+	if (old_info.entry.flags & UMSDOS_HLINK) {
+		d_drop(old_dentry);
+	}
+
+	old = umsdos_covered(old_dentry->d_parent, old_info.fake.fname, 
+					old_info.fake.len);
+	ret = PTR_ERR(old);
+	if (IS_ERR(old))
+		goto out_unlock;
+	/* make sure it's the same inode! */
+	ret = -ENOENT;
+	/*
+	 * note: for hardlinks they will be different!
+	 *  old_inode will contain inode of .LINKxxx file containing data, and
+	 *  old->d_inode will contain inode of file containing path to .LINKxxx file
+	 */
+	if (!(old_info.entry.flags & UMSDOS_HLINK)) {
+	 	if (old->d_inode != old_inode)
+ 			goto out_dput;
+	}
+
+	new = umsdos_covered(new_dentry->d_parent, new_info.fake.fname, 
+					new_info.fake.len);
+	ret = PTR_ERR(new);
+	if (IS_ERR(new))
+		goto out_dput;
+
+	/* Do the msdos-level rename */
+	ret = msdos_rename (old_dir, old, new_dir, new);
+
+	dput(new);
+
+	/* If the rename failed, remove the new EMD entry */
+	if (ret != 0) {
+		umsdos_delentry (new_dentry->d_parent, &new_info,
+				 S_ISDIR (new_info.entry.mode));
+		goto out_dput;
+	}
+
+	/*
+	 * Rename successful ... remove the old name from the EMD.
+	 * Note that we use the EMD parent here, as the old dentry
+	 * may have moved to a new parent ...
+	 */
+	err = umsdos_delentry (old_emd->d_parent, &old_info,
+				S_ISDIR (old_info.entry.mode));
+	if (err) {
+		/* Failed? Complain a bit, but don't fail the operation */
+		printk(KERN_WARNING 
+			"umsdos_rename_f: delentry %s/%s failed, error=%d\n",
+			old_emd->d_parent->d_name.name, old_info.entry.name,
+			err);
+	}
+
+	/*
+	 * Update f_pos so notify_change will succeed
+	 * if the file was already in use.
+	 */
+	umsdos_set_dirinfo_new(old_dentry, new_info.f_pos);
+
+	/* dput() the dentry if we haven't already */
+out_dput:
+	dput(old);
+
+out_unlock:
+	dput(old_emd);
+	umsdos_unlockcreate (old_dir);
+	umsdos_unlockcreate (new_dir);
+
+out:
+	Printk ((" _ret=%d\n", ret));
+	return ret;
+}
+
+/*
+ * Setup a Symbolic link or a (pseudo) hard link
+ * Return a negative error code or 0 if OK.
+ */
+/* #Specification: symbolic links / strategy
+ * A symbolic link is simply a file which holds a path. It is
+ * implemented as a normal MSDOS file (not very space efficient :-()
+ * 
+ * I see two different ways to do this: One is to place the link data
+ * in unused entries of the EMD file; the other is to have a separate
+ * file dedicated to hold all symbolic links data.
+ * 
+ * Let's go for simplicity...
+ */
+
+/*
+ * AV. Should be called with dir->i_sem down.
+ */
+static int umsdos_symlink_x (struct inode *dir, struct dentry *dentry,
+			const char *symname, int mode, char flags)
+{
+	int ret, len;
+
+	ret = umsdos_create_any (dir, dentry, mode, 0, flags);
+	if (ret) {
+		printk(KERN_WARNING
+			"umsdos_symlink: create failed, ret=%d\n", ret);
+		goto out;
+	}
+
+	len = strlen (symname) + 1;
+	ret = block_symlink(dentry->d_inode, symname, len);
+	if (ret < 0)
+		goto out_unlink;
+out:
+	return ret;
+
+out_unlink:
+	printk(KERN_WARNING "umsdos_symlink: write failed, unlinking\n");
+	UMSDOS_unlink (dir, dentry);
+	d_drop(dentry);
+	goto out;
+}
+
+/*
+ * Setup a Symbolic link.
+ * Return a negative error code or 0 if OK.
+ */
+int UMSDOS_symlink ( struct inode *dir, struct dentry *dentry,
+		 const char *symname)
+{
+	return umsdos_symlink_x (dir, dentry, symname, S_IFLNK | 0777, 0);
+}
+
+/*
+ * Add a link to an inode in a directory
+ */
+int UMSDOS_link (struct dentry *olddentry, struct inode *dir,
+		 struct dentry *dentry)
+{
+	struct inode *oldinode = olddentry->d_inode;
+	struct inode *olddir = olddentry->d_parent->d_inode;
+	struct dentry *temp;
+	char *path;
+	unsigned long buffer;
+	int ret;
+	struct umsdos_info old_info;
+	struct umsdos_info hid_info;
+
+#ifdef UMSDOS_DEBUG_VERBOSE
+printk("umsdos_link: new %s/%s -> %s/%s\n",
+dentry->d_parent->d_name.name, dentry->d_name.name, 
+olddentry->d_parent->d_name.name, olddentry->d_name.name);
+#endif
+ 
+	ret = -EPERM;
+	if (S_ISDIR (oldinode->i_mode))
+		goto out;
+
+	ret = umsdos_nevercreat (dir, dentry, -EPERM);
+	if (ret)
+		goto out;
+
+	ret = -ENOMEM;
+	buffer = get_free_page(GFP_KERNEL);
+	if (!buffer)
+		goto out;
+
+	/*
+	 * Lock the link parent if it's not the same directory.
+	 */
+	ret = -EDEADLOCK;
+	if (olddir != dir) {
+		if (atomic_read(&olddir->i_sem.count) < 1)
+			goto out_free;
+		down(&olddir->i_sem);
+	}
+
+	/*
+	 * Parse the name and get the visible directory entry.
+	 */
+	ret = umsdos_parse (olddentry->d_name.name, olddentry->d_name.len,
+				&old_info);
+	if (ret)
+		goto out_unlock;
+	ret = umsdos_findentry (olddentry->d_parent, &old_info, 1);
+	if (ret) {
+printk("UMSDOS_link: %s/%s not in EMD, ret=%d\n",
+olddentry->d_parent->d_name.name, olddentry->d_name.name, ret);
+		goto out_unlock;
+	}
+
+	/*
+	 * If the visible dentry is a pseudo-hardlink, the original
+	 * file must be already hidden.
+	 */
+	if (!(old_info.entry.flags & UMSDOS_HLINK)) {
+		int err;
+
+		/* create a hidden link name */
+		ret = umsdos_newhidden (olddentry->d_parent, &hid_info);
+		if (ret) {
+printk("umsdos_link: can't make hidden %s/%s, ret=%d\n",
+olddentry->d_parent->d_name.name, hid_info.entry.name, ret);
+			goto out_unlock;
+		}
+
+		/*
+		 * Make a dentry and rename the original file ...
+		 */
+		temp = umsdos_lookup_dentry(olddentry->d_parent,
+						hid_info.entry.name,
+						hid_info.entry.name_len, 0); 
+		ret = PTR_ERR(temp);
+		if (IS_ERR(temp)) {
+printk("umsdos_link: lookup %s/%s failed, ret=%d\n",
+dentry->d_parent->d_name.name, hid_info.entry.name, ret);
+			goto cleanup;
+		}
+		/* rename the link to the hidden location ... */
+		ret = umsdos_rename_f(olddir, olddentry, olddir, temp,
+					UMSDOS_HIDDEN);
+		d_move(olddentry, temp);
+		dput(temp);
+		if (ret) {
+printk("umsdos_link: rename to %s/%s failed, ret=%d\n",
+temp->d_parent->d_name.name, temp->d_name.name, ret);
+			goto cleanup;
+		}
+		/*
+		 * Capture the path to the hidden link.
+		 */
+		path = umsdos_d_path(olddentry, (char *) buffer, PAGE_SIZE);
+		if (IS_ERR(path)) {
+			ret = PTR_ERR(path);
+			goto cleanup;
+		}
+Printk(("umsdos_link: hidden link path=%s\n", path));
+
+		/* mark the inode as a hardlink */
+		oldinode->u.umsdos_i.i_is_hlink = 1;
+
+		/*
+		 * Recreate a dentry for the original name and symlink it,
+		 * then symlink the new dentry. Don't give up if one fails,
+		 * or we'll lose the file completely!
+		 *
+		 * Note: this counts as the "original" reference, so we 
+		 * don't increment i_nlink for this one.
+		 */ 
+		temp = umsdos_lookup_dentry(olddentry->d_parent,
+						old_info.entry.name,
+						old_info.entry.name_len, 0); 
+		ret = PTR_ERR(temp);
+		if (!IS_ERR(temp)) {
+			ret = umsdos_symlink_x (olddir, temp, path, 
+						S_IFREG | 0777, UMSDOS_HLINK);
+			dput(temp);
+		}
+
+		/* This symlink increments i_nlink (see below.) */
+		err = umsdos_symlink_x (dir, dentry, path,
+					S_IFREG | 0777, UMSDOS_HLINK);
+		/* fold the two errors */
+		if (!ret)
+			ret = err;
+		goto out_unlock;
+
+		/* creation failed ... remove the link entry */
+	cleanup:
+printk("umsdos_link: link failed, ret=%d, removing %s/%s\n",
+ret, olddentry->d_parent->d_name.name, hid_info.entry.name);
+		err = umsdos_delentry(olddentry->d_parent, &hid_info, 0);
+		goto out_unlock;
+	}
+
+Printk(("UMSDOS_link: %s/%s already hidden\n",
+olddentry->d_parent->d_name.name, olddentry->d_name.name));
+	/*
+	 * The original file is already hidden, and we need to get 
+	 * the dentry for its real name, not the visible name.
+	 * N.B. make sure it's the hidden inode ...
+	 */
+	if (!oldinode->u.umsdos_i.i_is_hlink)
+		printk("UMSDOS_link: %s/%s hidden, ino=%ld not hlink??\n",
+			olddentry->d_parent->d_name.name,
+			olddentry->d_name.name, oldinode->i_ino);
+
+	/*
+	 * In order to get the correct (real) inode, we just drop
+	 * the original dentry.
+	 */ 
+	d_drop(olddentry);
+Printk(("UMSDOS_link: hard link %s/%s, fake=%s\n",
+olddentry->d_parent->d_name.name, olddentry->d_name.name, old_info.fake.fname));
+
+	/* Do a real lookup to get the short name dentry */
+	temp = umsdos_covered(olddentry->d_parent, old_info.fake.fname, 
+					old_info.fake.len);
+	ret = PTR_ERR(temp);
+	if (IS_ERR(temp))
+		goto out_unlock;
+
+	/* now resolve the link ... */
+	temp = umsdos_solve_hlink(temp);
+	ret = PTR_ERR(temp);
+	if (IS_ERR(temp))
+		goto out_unlock;
+	path = umsdos_d_path(temp, (char *) buffer, PAGE_SIZE);
+	dput(temp);
+	if (IS_ERR(path))
+		goto out_unlock;
+Printk(("umsdos_link: %s/%s already hidden, path=%s\n",
+olddentry->d_parent->d_name.name, olddentry->d_name.name, path));
+
+	/* finally we can symlink it ... */
+	ret = umsdos_symlink_x (dir, dentry, path, S_IFREG | 0777,UMSDOS_HLINK);
+
+out_unlock:
+	/* remain locked for the call to notify_change ... */
+	if (ret == 0) {
+		struct iattr newattrs;
+
+		/* Do a real lookup to get the short name dentry */
+		temp = umsdos_covered(olddentry->d_parent,
+					old_info.fake.fname,
+					old_info.fake.len);
+		ret = PTR_ERR(temp);
+		if (IS_ERR(temp))
+			goto out_unlock2;
+
+		/* now resolve the link ... */
+		temp = umsdos_solve_hlink(temp);
+		ret = PTR_ERR(temp);
+		if (IS_ERR(temp))
+			goto out_unlock2;
+
+
+#ifdef UMSDOS_PARANOIA
+if (!oldinode->u.umsdos_i.i_is_hlink)
+printk("UMSDOS_link: %s/%s, ino=%ld, not marked as hlink!\n",
+olddentry->d_parent->d_name.name, olddentry->d_name.name, oldinode->i_ino);
+#endif
+		temp->d_inode->i_nlink++;
+Printk(("UMSDOS_link: linked %s/%s, ino=%ld, nlink=%d\n",
+olddentry->d_parent->d_name.name, olddentry->d_name.name,
+oldinode->i_ino, oldinode->i_nlink));
+		newattrs.ia_valid = 0;
+		ret = umsdos_notify_change_locked(temp, &newattrs);
+ 		if (ret == 0)
+			mark_inode_dirty(temp->d_inode);
+		dput(temp);
+out_unlock2:	
+		if (ret == 0)
+			mark_inode_dirty(olddentry->d_inode);
+	}
+	if (olddir != dir)
+		up(&olddir->i_sem);
+
+out_free:
+	free_page(buffer);
+out:
+	Printk (("umsdos_link %d\n", ret));
+	return ret;
+}
+
+
+/*
+ * Add a sub-directory in a directory
+ */
+/* #Specification: mkdir / Directory already exist in DOS
+ * We do the same thing as for file creation.
+ * For all user it is an error.
+ */
+/* #Specification: mkdir / umsdos directory / create EMD
+ * When we created a new sub-directory in a UMSDOS
+ * directory (one with full UMSDOS semantics), we
+ * create immediately an EMD file in the new
+ * sub-directory so it inherits UMSDOS semantics.
+ */
+int UMSDOS_mkdir (struct inode *dir, struct dentry *dentry, int mode)
+{
+	struct dentry *temp;
+	struct inode *inode;
+	int ret, err;
+	struct umsdos_info info;
+
+	ret = umsdos_nevercreat (dir, dentry, -EEXIST);
+	if (ret)
+		goto out;
+
+	ret = umsdos_parse (dentry->d_name.name, dentry->d_name.len, &info);
+	if (ret)
+		goto out;
+
+	info.entry.mode = mode | S_IFDIR;
+	info.entry.rdev = 0;
+	info.entry.uid = current->fsuid;
+	info.entry.gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid;
+	info.entry.ctime = info.entry.atime = info.entry.mtime = CURRENT_TIME;
+	info.entry.flags = 0;
+	info.entry.nlink = 1;
+	ret = umsdos_newentry (dentry->d_parent, &info);
+	if (ret)
+		goto out;
+
+	/* lookup the short name dentry */
+	temp = umsdos_covered(dentry->d_parent, info.fake.fname, info.fake.len);
+	ret = PTR_ERR(temp);
+	if (IS_ERR(temp))
+		goto out_remove;
+
+	/* Make sure the short name doesn't exist */
+	ret = -EEXIST;
+	if (temp->d_inode) {
+printk("umsdos_mkdir: short name %s/%s exists\n",
+dentry->d_parent->d_name.name, info.fake.fname);
+		goto out_remove_dput;
+	}
+
+	ret = msdos_mkdir (dir, temp, mode);
+	if (ret)
+		goto out_remove_dput;
+
+	/*
+	 * Lock the inode to protect the EMD creation ...
+	 */
+	inode = temp->d_inode;
+	down(&inode->i_sem);
+
+	atomic_inc(&inode->i_count);
+	d_instantiate(dentry, inode);
+
+	/* N.B. this should have an option to create the EMD ... */
+	umsdos_lookup_patch_new(dentry, &info);
+
+	/* 
+	 * Create the EMD file, and set up the dir so it is
+	 * promoted to EMD with the EMD file invisible.
+	 *
+	 * N.B. error return if EMD fails?
+	 */
+	err = umsdos_make_emd(dentry);
+	umsdos_setup_dir(dentry);
+
+	up(&inode->i_sem);
+	dput(temp);
+
+out:
+	Printk(("umsdos_mkdir: %s/%s, ret=%d\n",
+		dentry->d_parent->d_name.name, dentry->d_name.name, ret));
+	return ret;
+
+	/* an error occurred ... remove EMD entry. */
+out_remove_dput:
+	dput(temp);
+out_remove:
+	umsdos_delentry (dentry->d_parent, &info, 1);
+	goto out;
+}
+
+/*
+ * Add a new device special file into a directory.
+ *
+ * #Specification: Special files / strategy
+ * Device special file, pipes, etc ... are created like normal
+ * file in the msdos file system. Of course they remain empty.
+ * 
+ * One strategy was to create those files only in the EMD file
+ * since they were not important for MSDOS. The problem with
+ * that, is that there were not getting inode number allocated.
+ * The MSDOS filesystems is playing a nice game to fake inode
+ * number, so why not use it.
+ * 
+ * The absence of inode number compatible with those allocated
+ * for ordinary files was causing major trouble with hard link
+ * in particular and other parts of the kernel I guess.
+ */
+int UMSDOS_mknod (struct inode *dir, struct dentry *dentry,
+		 int mode, int rdev)
+{
+	return umsdos_create_any (dir, dentry, mode, rdev, 0);
+}
+
+/*
+ * Remove a sub-directory.
+ */
+int UMSDOS_rmdir (struct inode *dir, struct dentry *dentry)
+{
+	struct dentry *temp;
+	int ret, err, empty;
+	struct umsdos_info info;
+
+	ret = umsdos_nevercreat (dir, dentry, -EPERM);
+	if (ret)
+		goto out;
+
+	ret = -EBUSY;
+	if (!d_unhashed(dentry))
+		goto out;
+
+	/* check whether the EMD is empty */
+	ret = -ENOTEMPTY;
+	empty = umsdos_isempty (dentry);
+
+	/* Have to remove the EMD file? */
+	if (empty == 1) {
+		struct dentry *demd;
+
+		demd = umsdos_get_emd_dentry(dentry);
+		if (!IS_ERR(demd)) {
+			err = -ENOENT;
+			if (demd->d_inode)
+				err = msdos_unlink (dentry->d_inode, demd);
+Printk (("UMSDOS_rmdir: unlinking empty EMD err=%d", err));
+#ifdef UMSDOS_PARANOIA
+if (err)
+printk("umsdos_rmdir: EMD %s/%s unlink failed, err=%d\n",
+demd->d_parent->d_name.name, demd->d_name.name, err);
+#endif
+			if (!err) {
+				d_delete(demd);
+				ret = 0;
+			}
+			dput(demd);
+		}
+	} else if (empty == 2)
+		ret = 0;
+	if (ret)
+		goto out;
+
+	umsdos_parse (dentry->d_name.name, dentry->d_name.len, &info);
+	/* Call findentry to complete the mangling */
+	umsdos_findentry (dentry->d_parent, &info, 2);
+	temp = umsdos_covered(dentry->d_parent, info.fake.fname, info.fake.len);
+	ret = PTR_ERR(temp);
+	if (IS_ERR(temp))
+		goto out;
+	/*
+	 * Attempt to remove the msdos name.
+	 */
+	ret = msdos_rmdir (dir, temp);
+	if (ret && ret != -ENOENT)
+		goto out_dput;
+
+	d_delete(temp);
+	/* OK so far ... remove the name from the EMD */
+	ret = umsdos_delentry (dentry->d_parent, &info, 1);
+#ifdef UMSDOS_PARANOIA
+if (ret)
+printk("umsdos_rmdir: delentry %s failed, ret=%d\n", info.entry.name, ret);
+#endif
+
+	/* dput() temp if we didn't do it above */
+out_dput:
+	dput(temp);
+
+out:
+	Printk (("umsdos_rmdir %d\n", ret));
+	return ret;
+}
+
+
+/*
+ * Remove a file from the directory.
+ *
+ * #Specification: hard link / deleting a link
+ * When we delete a file and this file is a link,
+ * we must subtract 1 from the nlink field of the
+ * hidden link.
+ * 
+ * If the count goes to 0, we delete this hidden
+ * link too.
+ */
+int UMSDOS_unlink (struct inode *dir, struct dentry *dentry)
+{
+	struct dentry *temp, *link = NULL;
+	struct inode *inode;
+	int ret;
+	struct umsdos_info info;
+
+Printk(("UMSDOS_unlink: entering %s/%s\n",
+dentry->d_parent->d_name.name, dentry->d_name.name));
+
+	ret = umsdos_nevercreat (dir, dentry, -EPERM);
+	if (ret)
+		goto out;
+
+	ret = umsdos_parse (dentry->d_name.name, dentry->d_name.len, &info);
+	if (ret)
+		goto out;
+
+	umsdos_lockcreate (dir);
+	ret = umsdos_findentry (dentry->d_parent, &info, 1);
+	if (ret) {
+printk("UMSDOS_unlink: %s/%s not in EMD, ret=%d\n",
+dentry->d_parent->d_name.name, dentry->d_name.name, ret);
+		goto out_unlock;
+	}
+
+Printk (("UMSDOS_unlink %.*s ", info.fake.len, info.fake.fname));
+
+	/*
+	 * Note! If this is a hardlink and the names are aliased,
+	 * the short-name lookup will return the hardlink dentry.
+	 * In order to get the correct (real) inode, we just drop
+	 * the original dentry.
+	 */ 
+	if (info.entry.flags & UMSDOS_HLINK) {
+		d_drop(dentry);
+	}
+
+	/* Do a real lookup to get the short name dentry */
+	temp = umsdos_covered(dentry->d_parent, info.fake.fname, info.fake.len);
+	ret = PTR_ERR(temp);
+	if (IS_ERR(temp))
+		goto out_unlock;
+
+	/*
+	 * Resolve hardlinks now, but defer processing until later.
+	 */
+	if (info.entry.flags & UMSDOS_HLINK) {
+		link = umsdos_solve_hlink(dget(temp));
+	}
+
+	/* Delete the EMD entry */
+	ret = umsdos_delentry (dentry->d_parent, &info, 0);
+	if (ret && ret != -ENOENT) {
+		printk(KERN_WARNING "UMSDOS_unlink: delentry %s, error=%d\n",
+			info.entry.name, ret);
+		goto out_dput;
+	}
+
+	ret = msdos_unlink(dir, temp);
+	if (!ret)
+		d_delete(temp);
+#ifdef UMSDOS_PARANOIA
+if (ret)
+printk("umsdos_unlink: %s/%s unlink failed, ret=%d\n",
+temp->d_parent->d_name.name, temp->d_name.name, ret);
+#endif
+
+	/* dput() temp if we didn't do it above */
+out_dput:
+	dput(temp);
+
+out_unlock:
+	umsdos_unlockcreate (dir);
+
+	/*
+	 * Now check for deferred handling of a hardlink.
+	 */
+	if (!link)
+		goto out;
+
+	if (IS_ERR(link)) {
+printk("umsdos_unlink: failed to resolve %s/%s\n",
+dentry->d_parent->d_name.name, dentry->d_name.name);
+		if (!ret)
+			ret = PTR_ERR(link);
+		goto out;
+	}
+
+Printk(("umsdos_unlink: link %s/%s deferred, pending ret=%d\n",
+link->d_parent->d_name.name, link->d_name.name, ret));
+
+	/* already have an error? */
+	if (ret)
+		goto out_cleanup;
+
+	/* make sure the link exists ... */
+	inode = link->d_inode;
+	if (!inode) {
+		printk(KERN_WARNING "umsdos_unlink: hard link not found\n");
+		goto out_cleanup;
+	}
+
+	/*
+	 * If this was the last linked reference, delete it now.
+	 *
+	 * N.B. Deadlock problem? We should be holding the lock
+	 * for the hardlink's parent, but another process might
+	 * be holding that lock waiting for us to finish ...
+	 */
+	if (inode->i_nlink <= 1) {
+		ret = UMSDOS_unlink (link->d_parent->d_inode, link);
+		if (ret) {
+			printk(KERN_WARNING
+				"umsdos_unlink: link removal failed, ret=%d\n",
+				 ret);
+		} else
+			d_delete(link);
+	} else {
+		struct iattr newattrs;
+		inode->i_nlink--;
+		newattrs.ia_valid = 0;
+		ret = umsdos_notify_change_locked(link, &newattrs);
+		if (!ret)
+			mark_inode_dirty(link->d_inode);
+	}
+
+out_cleanup:
+	d_drop(link);
+	dput(link);
+
+out:
+	Printk (("umsdos_unlink %d\n", ret));
+	return ret;
+}
+
+/*
+ * Rename (move) a file.
+ */
+int UMSDOS_rename (struct inode *old_dir, struct dentry *old_dentry,
+		   struct inode *new_dir, struct dentry *new_dentry)
+{
+	int ret;
+
+	ret = umsdos_nevercreat (new_dir, new_dentry, -EEXIST);
+	if (ret)
+		return ret;
+
+		/*
+		 * If the target already exists, delete it first.
+		 */
+	if (new_dentry->d_inode) {
+		dget(new_dentry);
+		if (S_ISDIR(old_dentry->d_inode->i_mode))
+			ret = UMSDOS_rmdir (new_dir, new_dentry);
+		else
+			ret = UMSDOS_unlink (new_dir, new_dentry);
+		if (!ret)
+			d_drop(new_dentry);
+		dput(new_dentry);
+		if (ret)
+			return ret;
+	}
+	ret = umsdos_rename_f(old_dir, old_dentry, new_dir, new_dentry, 0);
+	return ret;
+}
diff --git a/fs/umsdos/notes b/fs/umsdos/notes
new file mode 100644
index 00000000000000..3c47d1f4fc4732
--- /dev/null
+++ b/fs/umsdos/notes
@@ -0,0 +1,17 @@
+This file contain idea and things I don't want to forget
+
+Possible bug in fs/read_write.c
+Function sys_readdir()
+
+	There is a call the verify_area that does not take in account
+	the count parameter. I guess it should read
+
+	error = verify_area(VERIFY_WRITE, dirent, count*sizeof (*dirent));
+
+	instead of
+
+	error = verify_area(VERIFY_WRITE, dirent, sizeof (*dirent));
+
+	Of course, now , count is always 1
+
+
diff --git a/fs/umsdos/rdir.c b/fs/umsdos/rdir.c
new file mode 100644
index 00000000000000..9fbca394193446
--- /dev/null
+++ b/fs/umsdos/rdir.c
@@ -0,0 +1,243 @@
+/*
+ *  linux/fs/umsdos/rdir.c
+ *
+ *  Written 1994 by Jacques Gelinas
+ *
+ *  Extended MS-DOS directory pure MS-DOS handling functions
+ *  (For directory without EMD file).
+ */
+
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/msdos_fs.h>
+#include <linux/errno.h>
+#include <linux/stat.h>
+#include <linux/limits.h>
+#include <linux/umsdos_fs.h>
+#include <linux/slab.h>
+
+#include <asm/uaccess.h>
+
+
+extern struct dentry *saved_root;
+extern struct inode *pseudo_root;
+extern struct dentry_operations umsdos_dentry_operations;
+
+struct RDIR_FILLDIR {
+	void *dirbuf;
+	filldir_t filldir;
+	int real_root;
+};
+
+static int rdir_filldir (	void *buf,
+				const char *name,
+				int name_len,
+				loff_t offset,
+				ino_t ino,
+				unsigned int d_type)
+{
+	int ret = 0;
+	struct RDIR_FILLDIR *d = (struct RDIR_FILLDIR *) buf;
+
+	if (d->real_root) {
+		PRINTK ((KERN_DEBUG "rdir_filldir /mn/: real root!\n"));
+		/* real root of a pseudo_rooted partition */
+		if (name_len != UMSDOS_PSDROOT_LEN
+		    || memcmp (name, UMSDOS_PSDROOT_NAME, UMSDOS_PSDROOT_LEN) != 0) {
+			/* So it is not the /linux directory */
+			if (name_len == 2 && name[0] == '.' && name[1] == '.') {
+				/* Make sure the .. entry points back to the pseudo_root */
+				ino = pseudo_root->i_ino;
+			}
+			ret = d->filldir (d->dirbuf, name, name_len, offset, ino, DT_UNKNOWN);
+		}
+	} else {
+		/* Any DOS directory */
+		ret = d->filldir (d->dirbuf, name, name_len, offset, ino, DT_UNKNOWN);
+	}
+	return ret;
+}
+
+
+static int UMSDOS_rreaddir (struct file *filp, void *dirbuf, filldir_t filldir)
+{
+	struct inode *dir = filp->f_dentry->d_inode;
+	struct RDIR_FILLDIR bufk;
+
+	bufk.filldir = filldir;
+	bufk.dirbuf = dirbuf;
+	bufk.real_root = pseudo_root && (dir == saved_root->d_inode);
+	return fat_readdir (filp, &bufk, rdir_filldir);
+}
+
+
+/*
+ * Lookup into a non promoted directory.
+ * If the result is a directory, make sure we find out if it is
+ * a promoted one or not (calling umsdos_setup_dir_inode(inode)).
+ */
+/* #Specification: pseudo root / DOS/..
+ * In the real root directory (c:\), the directory ..
+ * is the pseudo root (c:\linux).
+ */
+struct dentry *umsdos_rlookup_x ( struct inode *dir, struct dentry *dentry, int nopseudo)
+{
+	struct dentry *ret;
+
+	if (saved_root && dir == saved_root->d_inode && !nopseudo &&
+	    dentry->d_name.len == UMSDOS_PSDROOT_LEN &&
+	    memcmp (dentry->d_name.name, UMSDOS_PSDROOT_NAME, UMSDOS_PSDROOT_LEN) == 0) {
+		/* #Specification: pseudo root / DOS/linux
+		 * Even in the real root directory (c:\), the directory
+		 * /linux won't show
+		 */
+		 
+		ret = ERR_PTR(-ENOENT);
+		goto out;
+	}
+
+	ret = msdos_lookup (dir, dentry);
+	if (ret) {
+		printk(KERN_WARNING
+			"umsdos_rlookup_x: %s/%s failed, ret=%ld\n",
+			dentry->d_parent->d_name.name, dentry->d_name.name,
+			PTR_ERR(ret));
+		goto out;
+	}
+	if (dentry->d_inode) {
+		/* We must install the proper function table
+		 * depending on whether this is an MS-DOS or 
+		 * a UMSDOS directory
+		 */
+Printk ((KERN_DEBUG "umsdos_rlookup_x: patch_dentry_inode %s/%s\n",
+dentry->d_parent->d_name.name, dentry->d_name.name));
+/* only patch if needed (because we get called even for lookup
+   (not only rlookup) stuff sometimes, like in umsdos_covered() */
+		if (dentry->d_inode->u.umsdos_i.i_patched == 0)	
+		umsdos_patch_dentry_inode(dentry, 0);
+
+	}
+out:
+	/* always install our dentry ops ... */
+	dentry->d_op = &umsdos_dentry_operations;
+	return ret;
+}
+
+
+struct dentry *UMSDOS_rlookup ( struct inode *dir, struct dentry *dentry)
+{
+	return umsdos_rlookup_x (dir, dentry, 0);
+}
+
+
+/* #Specification: dual mode / rmdir in a DOS directory
+ * In a DOS (not EMD in it) directory, we use a reverse strategy
+ * compared with a UMSDOS directory. We assume that a subdirectory
+ * of a DOS directory is also a DOS directory. This is not always
+ * true (umssync may be used anywhere), but makes sense.
+ * 
+ * So we call msdos_rmdir() directly. If it failed with a -ENOTEMPTY
+ * then we check if it is a Umsdos directory. We check if it is
+ * really empty (only . .. and --linux-.--- in it). If it is true
+ * we remove the EMD and do a msdos_rmdir() again.
+ * 
+ * In a Umsdos directory, we assume all subdirectories are also
+ * Umsdos directories, so we check the EMD file first.
+ */
+/* #Specification: pseudo root / rmdir /DOS
+ * The pseudo sub-directory /DOS can't be removed!
+ * This is done even if the pseudo root is not a Umsdos
+ * directory anymore (very unlikely), but an accident (under
+ * MS-DOS) is always possible.
+ * 
+ * EPERM is returned.
+ */
+static int UMSDOS_rrmdir ( struct inode *dir, struct dentry *dentry)
+{
+	int ret, empty;
+
+	ret = -EPERM;
+	if (umsdos_is_pseudodos (dir, dentry))
+		goto out;
+
+	ret = -EBUSY;
+	if (!d_unhashed(dentry))
+		goto out;
+
+	ret = msdos_rmdir (dir, dentry);
+	if (ret != -ENOTEMPTY)
+		goto out;
+
+	empty = umsdos_isempty (dentry);
+	if (empty == 1) {
+		struct dentry *demd;
+		/* We have to remove the EMD file. */
+		demd = umsdos_get_emd_dentry(dentry);
+		ret = PTR_ERR(demd);
+		if (!IS_ERR(demd)) {
+			ret = 0;
+			if (demd->d_inode)
+				ret = msdos_unlink (dentry->d_inode, demd);
+			if (!ret)
+				d_delete(demd);
+			dput(demd);
+		}
+	}
+	if (ret)
+		goto out;
+
+	/* now retry the original ... */
+	ret = msdos_rmdir (dir, dentry);
+
+out:
+	return ret;
+}
+
+/* #Specification: dual mode / introduction
+ * One goal of UMSDOS is to allow a practical and simple coexistence
+ * between MS-DOS and Linux in a single partition. Using the EMD file
+ * in each directory, UMSDOS adds Unix semantics and capabilities to
+ * a normal DOS filesystem. To help and simplify coexistence, here is
+ * the logic related to the EMD file.
+ * 
+ * If it is missing, then the directory is managed by the MS-DOS driver.
+ * The names are limited to DOS limits (8.3). No links, no device special
+ * and pipe and so on.
+ * 
+ * If it is there, it is the directory. If it is there but empty, then
+ * the directory looks empty. The utility umssync allows synchronisation
+ * of the real DOS directory and the EMD.
+ * 
+ * Whenever umssync is applied to a directory without EMD, one is
+ * created on the fly.  The directory is promoted to full Unix semantics.
+ * Of course, the ls command will show exactly the same content as before
+ * the umssync session.
+ * 
+ * It is believed that the user/admin will promote directories to Unix
+ * semantics as needed.
+ * 
+ * The strategy to implement this is to use two function table (struct
+ * inode_operations). One for true UMSDOS directory and one for directory
+ * with missing EMD.
+ * 
+ * Functions related to the DOS semantic (but aware of UMSDOS) generally
+ * have a "r" prefix (r for real) such as UMSDOS_rlookup, to differentiate
+ * from the one with full UMSDOS semantics.
+ */
+struct file_operations umsdos_rdir_operations =
+{
+	read:		generic_read_dir,
+	readdir:	UMSDOS_rreaddir,
+	ioctl:		UMSDOS_ioctl_dir,
+};
+
+struct inode_operations umsdos_rdir_inode_operations =
+{
+	create:		msdos_create,
+	lookup:		UMSDOS_rlookup,
+	unlink:		msdos_unlink,
+	mkdir:		msdos_mkdir,
+	rmdir:		UMSDOS_rrmdir,
+	rename:		msdos_rename,
+	setattr:	UMSDOS_notify_change,
+};
diff --git a/fs/umsdos/specs b/fs/umsdos/specs
new file mode 100644
index 00000000000000..0f7d68c0aef610
--- /dev/null
+++ b/fs/umsdos/specs
@@ -0,0 +1,289 @@
+/* #Specification: umsdos / readdir
+ * umsdos_readdir() should fill a struct dirent with
+ * an inode number. The cheap way to get it is to
+ * do a lookup in the MSDOS directory for each
+ * entry processed by the readdir() function.
+ * This is not very efficient, but very simple. The
+ * other way around is to maintain a copy of the inode
+ * number in the EMD file. This is a problem because
+ * this has to be maintained in sync using tricks.
+ * Remember that MSDOS (the OS) does not update the
+ * modification time (mtime) of a directory. There is
+ * no easy way to tell that a directory was modified
+ * during a DOS session and synchronise the EMD file.
+ */
+		/* #Specification: readdir / . and ..
+		 * The msdos filesystem manages the . and .. entry properly
+		 * so the EMD file won't hold any info about it.
+		 * 
+		 * In readdir, we assume that for the root directory
+		 * the read position will be 0 for ".", 1 for "..". For
+		 * a non root directory, the read position will be 0 for "."
+		 * and 32 for "..".
+		 */
+		/*
+		 * This is a trick used by the msdos file system (fs/msdos/dir.c)
+		 * to manage . and .. for the root directory of a file system.
+		 * Since there is no such entry in the root, fs/msdos/dir.c
+		 * use the following:
+		 * 
+		 * if f_pos == 0, return ".".
+		 * if f_pos == 1, return "..".
+		 * 
+		 * So let msdos handle it
+		 * 
+		 * Since umsdos entries are much larger, we share the same f_pos.
+		 * if f_pos is 0 or 1 or 32, we are clearly looking at . and
+		 * ..
+		 * 
+		 * As soon as we get f_pos == 2 or f_pos == 64, then back to
+		 * 0, but this time we are reading the EMD file.
+		 * 
+		 * Well, not so true. The problem, is that UMSDOS_REC_SIZE is
+		 * also 64, so as soon as we read the first record in the
+		 * EMD, we are back at offset 64. So we set the offset
+		 * to UMSDOS_SPECIAL_DIRFPOS(3) as soon as we have read the
+		 * .. entry from msdos.
+		 * 
+		 * Now (linux 1.3), umsdos_readdir can read more than one
+		 * entry even if we limit (umsdos_dir_once) to only one:
+		 * It skips over hidden file. So we switch to
+		 * UMSDOS_SPECIAL_DIRFPOS as soon as we have read successfully
+		 * the .. entry.
+		 */
+			/* #Specification: umsdos / lookup / inode info
+			 * After successfully reading an inode from the MSDOS
+			 * filesystem, we use the EMD file to complete it.
+			 * We update the following field.
+			 * 
+			 * uid, gid, atime, ctime, mtime, mode.
+			 * 
+			 * We rely on MSDOS for mtime. If the file
+			 * was modified during an MSDOS session, at least
+			 * mtime will be meaningful. We do this only for regular
+			 * file.
+			 * 
+			 * We don't rely on MS-DOS for mtime for directories
+			 * because the MS-DOS date on a directory is its
+			 * creation time (strange MSDOS behavior) which
+			 * corresponds to none of the three Unix time stamps.
+			 */
+	/* #Specification: umsdos / conversion mode
+	 * The msdos filesystem can do some inline conversion
+	 * of the data of a file.  It can translate silently
+	 * from the MS-DOS text file format to the Unix one
+	 * (CRLF -> LF) while reading, and the reverse
+	 * while writing. This is activated using the mount
+	 * option conv=....
+	 * 
+	 * This is not useful for Linux files in a promoted
+	 * directory.  It can even be harmful.  For this
+	 * reason, the binary (no conversion) mode is
+	 * always activated.
+	 */
+	/* #Specification: umsdos / conversion mode / todo
+	 * A flag could be added to file and directories
+	 * forcing an automatic conversion mode (as
+	 * done with the msdos filesystem).
+	 * 
+	 * This flag could be setup on a directory basis
+	 * (instead of file) and all files in it would
+	 * logically inherit it.  If the conversion mode
+	 * is active (conv=) then the i_binary flag would
+	 * be left untouched in those directories.
+	 * 
+	 * It was proposed that the sticky bit be used to set
+	 * this.  A problem with that is that new files would
+	 * be written incorrectly.  The other problem is that
+	 * the sticky bit has a meaning for directories. So
+	 * another bit should be used (there is some space
+	 * in the EMD file for it) and a special utility
+	 * would be used to assign the flag to a directory).
+	 * I don't think it is useful to assign this flag
+	 * on a single file.
+	 */
+ * #Specification: weakness / rename
+ * There is a case where UMSDOS rename has a different behavior
+ * than a normal Unix file system.  Renaming an open file across
+ * directory boundary does not work.  Renaming an open file within
+ * a directory does work, however.
+ * 
+ * The problem may is in Linux VFS driver for msdos.
+ * I believe this is not a bug but a design feature, because
+ * an inode number represents some sort of directory address
+ * in the MSDOS directory structure, so moving the file into
+ * another directory does not preserve the inode number.
+ */
+/* #Specification: rename / new name exist
+ * If the destination name already exists, it will
+ * silently be removed.  EXT2 does it this way
+ * and this is the spec of SunOS.  So does UMSDOS.
+ * 
+ * If the destination is an empty directory it will
+ * also be removed.
+ */
+/* #Specification: rename / new name exist / possible flaw
+ * The code to handle the deletion of the target (file
+ * and directory) use to be in umsdos_rename_f, surrounded
+ * by proper directory locking.  This was ensuring that only
+ * one process could achieve a rename (modification) operation
+ * in the source and destination directory.  This was also
+ * ensuring the operation was "atomic".
+ * 
+ * This has been changed because this was creating a
+ * stack overflow (the stack is only 4 kB) in the kernel.  To avoid
+ * the code doing the deletion of the target (if exist) has
+ * been moved to a upper layer. umsdos_rename_f is tried
+ * once and if it fails with EEXIST, the target is removed
+ * and umsdos_rename_f is done again.
+ * 
+ * This makes the code cleaner and may solve a
+ * deadlock problem one tester was experiencing.
+ * 
+ * The point is to mention that possibly, the semantic of
+ * "rename" may be wrong. Anyone dare to check that :-)
+ * Be aware that IF it is wrong, to produce the problem you
+ * will need two process trying to rename a file to the
+ * same target at the same time. Again, I am not sure it
+ * is a problem at all.
+ */
+
+/* #Specification: hard link / strategy
+ * Hard links are difficult to implement on top of an MS-DOS FAT file
+ * system. Unlike Unix file systems, there are no inodes. A directory
+ * entry holds the functionality of the inode and the entry.
+ * 
+ * We will used the same strategy as a normal Unix file system
+ * (with inodes) except we will do it symbolically (using paths).
+ * 
+ * Because anything can happen during a DOS session (defragment,
+ * directory sorting, etc.), we can't rely on an MS-DOS pseudo
+ * inode number to record the link. For this reason, the link
+ * will be done using hidden symbolic links. The following
+ * scenario illustrates how it works.
+ * 
+ * Given a file /foo/file
+ * 
+ * #
+ * ln /foo/file /tmp/file2
+ * 
+ * become internally
+ * 
+ * mv /foo/file /foo/-LINK1
+ * ln -s /foo/-LINK1 /foo/file
+ * ln -s /foo/-LINK1 /tmp/file2
+ * #
+ * 
+ * Using this strategy, we can operate on /foo/file or /foo/file2.
+ * We can remove one and keep the other, like a normal Unix hard link.
+ * We can rename /foo/file or /tmp/file2 independently.
+ * 
+ * The entry -LINK1 will be hidden. It will hold a link count.
+ * When all link are erased, the hidden file is erased too.
+ */
+
+/* #Specification: weakness / hard link
+ * The strategy for hard link introduces a side effect that
+ * may or may not be acceptable. Here is the sequence
+ * 
+ * #
+ * mkdir subdir1
+ * touch subdir1/file
+ * mkdir subdir2
+ * ln    subdir1/file subdir2/file
+ * rm    subdir1/file
+ * rmdir subdir1
+ * rmdir: subdir1: Directory not empty
+ * #
+ * 
+ * This happen because there is an invisible file (--link) in
+ * subdir1 which is referenced by subdir2/file.
+ * 
+ * Any idea ?
+ */
+/* #Specification: weakness / hard link / rename directory
+ * Another weakness of hard link come from the fact that
+ * it is based on hidden symbolic links. Here is an example.
+ * 
+ * #
+ * mkdir /subdir1
+ * touch /subdir1/file
+ * mkdir /subdir2
+ * ln    /subdir1/file subdir2/file
+ * mv    /subdir1 subdir3
+ * ls -l /subdir2/file
+ * #
+ * 
+ * Since /subdir2/file is a hidden symbolic link
+ * to /subdir1/..hlinkNNN, accessing it will fail since
+ * /subdir1 does not exist anymore (has been renamed).
+ */
+/* #Specification: hard link / directory
+ * A hard link can't be made on a directory. EPERM is returned
+ * in this case.
+ */
+/* #Specification: hard link / first hard link
+ * The first time a hard link is done on a file, this
+ * file must be renamed and hidden. Then an internal
+ * symbolic link must be done on the hidden file.
+ * 
+ * The second link is done after on this hidden file.
+ * 
+ * It is expected that the Linux MSDOS file system
+ * keeps the same pseudo inode when a rename operation
+ * is done on a file in the same directory.
+ */
+/* #Specification: function name / convention
+ * A simple convention for function names has been used in
+ * the UMSDOS filesystem. First, all functions use the prefix
+ * umsdos_ to avoid name clashes with other parts of the kernel.
+ * 
+ * Standard VFS entry points use the prefix UMSDOS (upper case)
+ * so it's easier to tell them apart.
+ * N.B. (FIXME) PTW, the order and contents of this struct changed.
+ */
+
+/* #Specification: mount / options
+ * Umsdos run on top of msdos. Currently, it supports no
+ * mount option, but happily pass all option received to
+ * the msdos driver. I am not sure if all msdos mount option
+ * make sense with Umsdos. Here are at least those who
+ * are useful.
+ * uid=
+ * gid=
+ * 
+ * These options affect the operation of umsdos in directories
+ * which do not have an EMD file. They behave like normal
+ * msdos directory, with all limitation of msdos.
+ */
+
+/* #Specification: pseudo root / mount
+ * When a umsdos fs is mounted, a special handling is done
+ * if it is the root partition. We check for the presence
+ * of the file /linux/etc/init or /linux/etc/rc or
+ * /linux/sbin/init. If one is there, we do a chroot("/linux").
+ * 
+ * We check both because (see init/main.c) the kernel
+ * try to exec init at different place and if it fails
+ * it tries /bin/sh /etc/rc. To be consistent with
+ * init/main.c, many more test would have to be done
+ * to locate init. Any complain ?
+ * 
+ * The chroot is done manually in init/main.c but the
+ * info (the inode) is located at mount time and store
+ * in a global variable (pseudo_root) which is used at
+ * different place in the umsdos driver. There is no
+ * need to store this variable elsewhere because it
+ * will always be one, not one per mount.
+ * 
+ * This feature allows the installation
+ * of a linux system within a DOS system in a subdirectory.
+ * 
+ * A user may install its linux stuff in c:\linux
+ * avoiding any clash with existing DOS file and subdirectory.
+ * When linux boots, it hides this fact, showing a normal
+ * root directory with /etc /bin /tmp ...
+ * 
+ * The word "linux" is hardcoded in /usr/include/linux/umsdos_fs.h
+ * in the macro UMSDOS_PSDROOT_NAME.
+ */
diff --git a/fs/vfat/Makefile b/fs/vfat/Makefile
new file mode 100644
index 00000000000000..55e0ea9151d604
--- /dev/null
+++ b/fs/vfat/Makefile
@@ -0,0 +1,17 @@
+#
+# Makefile for the linux vfat-filesystem routines.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile...
+
+O_TARGET := vfat.o
+
+export-objs := vfatfs_syms.o
+
+obj-y := namei.o vfatfs_syms.o
+obj-m := $(O_TARGET)
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/vfat/namei.c b/fs/vfat/namei.c
new file mode 100644
index 00000000000000..4437d5db9c2d85
--- /dev/null
+++ b/fs/vfat/namei.c
@@ -0,0 +1,1288 @@
+/*
+ *  linux/fs/vfat/namei.c
+ *
+ *  Written 1992,1993 by Werner Almesberger
+ *
+ *  Windows95/Windows NT compatible extended MSDOS filesystem
+ *    by Gordon Chaffee Copyright (C) 1995.  Send bug reports for the
+ *    VFAT filesystem to <chaffee@cs.berkeley.edu>.  Specify
+ *    what file operation caused you trouble and if you can duplicate
+ *    the problem, send a script that demonstrates it.
+ *
+ *  Short name translation 1999, 2001 by Wolfram Pienkoss <wp@bszh.de>
+ *
+ *  Support Multibyte character and cleanup by
+ *  				OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
+ */
+
+#include <linux/module.h>
+
+#include <linux/sched.h>
+#include <linux/msdos_fs.h>
+#include <linux/nls.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/ctype.h>
+#include <linux/stat.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+
+#define DEBUG_LEVEL 0
+#if (DEBUG_LEVEL >= 1)
+#  define PRINTK1(x) printk x
+#else
+#  define PRINTK1(x)
+#endif
+#if (DEBUG_LEVEL >= 2)
+#  define PRINTK2(x) printk x
+#else
+#  define PRINTK2(x)
+#endif
+#if (DEBUG_LEVEL >= 3)
+#  define PRINTK3(x) printk x
+#else
+#  define PRINTK3(x)
+#endif
+
+static int vfat_hashi(struct dentry *parent, struct qstr *qstr);
+static int vfat_hash(struct dentry *parent, struct qstr *qstr);
+static int vfat_cmpi(struct dentry *dentry, struct qstr *a, struct qstr *b);
+static int vfat_cmp(struct dentry *dentry, struct qstr *a, struct qstr *b);
+static int vfat_revalidate(struct dentry *dentry, int);
+
+static struct dentry_operations vfat_dentry_ops[4] = {
+	{
+		d_hash:		vfat_hashi,
+		d_compare:	vfat_cmpi,
+	},
+	{
+		d_revalidate:	vfat_revalidate,
+		d_hash:		vfat_hashi,
+		d_compare:	vfat_cmpi,
+	},
+	{
+		d_hash:		vfat_hash,
+		d_compare:	vfat_cmp,
+	},
+	{
+		d_revalidate:	vfat_revalidate,
+		d_hash:		vfat_hash,
+		d_compare:	vfat_cmp,
+	}
+};
+
+static int vfat_revalidate(struct dentry *dentry, int flags)
+{
+	PRINTK1(("vfat_revalidate: %s\n", dentry->d_name.name));
+	spin_lock(&dcache_lock);
+	if (dentry->d_time == dentry->d_parent->d_inode->i_version) {
+		spin_unlock(&dcache_lock);
+		return 1;
+	}
+	spin_unlock(&dcache_lock);
+	return 0;
+}
+
+static int simple_getbool(char *s, int *setval)
+{
+	if (s) {
+		if (!strcmp(s,"1") || !strcmp(s,"yes") || !strcmp(s,"true")) {
+			*setval = 1;
+		} else if (!strcmp(s,"0") || !strcmp(s,"no") || !strcmp(s,"false")) {
+			*setval = 0;
+		} else {
+			return 0;
+		}
+	} else {
+		*setval = 1;
+	}
+	return 1;
+}
+
+static int parse_options(char *options,	struct fat_mount_options *opts)
+{
+	char *this_char,*value,save,*savep;
+	int ret, val;
+
+	opts->unicode_xlate = opts->posixfs = 0;
+	opts->numtail = 1;
+	opts->utf8 = 0;
+	opts->shortname = VFAT_SFN_DISPLAY_LOWER | VFAT_SFN_CREATE_WIN95;
+	/* for backward compatible */
+	if (opts->nocase) {
+		opts->nocase = 0;
+		opts->shortname = VFAT_SFN_DISPLAY_WIN95
+		  		| VFAT_SFN_CREATE_WIN95;
+	}
+
+	if (!options) return 1;
+	save = 0;
+	savep = NULL;
+	ret = 1;
+	for (this_char = strtok(options,","); this_char; this_char = strtok(NULL,",")) {
+		if ((value = strchr(this_char,'=')) != NULL) {
+			save = *value;
+			savep = value;
+			*value++ = 0;
+		}
+		if (!strcmp(this_char,"utf8")) {
+			ret = simple_getbool(value, &val);
+			if (ret) opts->utf8 = val;
+		} else if (!strcmp(this_char,"uni_xlate")) {
+			ret = simple_getbool(value, &val);
+			if (ret) opts->unicode_xlate = val;
+		} else if (!strcmp(this_char,"posix")) {
+			ret = simple_getbool(value, &val);
+			if (ret) opts->posixfs = val;
+		} else if (!strcmp(this_char,"nonumtail")) {
+			ret = simple_getbool(value, &val);
+			if (ret) {
+				opts->numtail = !val;
+			}
+		} else if (!strcmp(this_char, "shortname")) {
+			if (!strcmp(value, "lower"))
+				opts->shortname = VFAT_SFN_DISPLAY_LOWER
+						| VFAT_SFN_CREATE_WIN95;
+			else if (!strcmp(value, "win95"))
+				opts->shortname = VFAT_SFN_DISPLAY_WIN95
+						| VFAT_SFN_CREATE_WIN95;
+			else if (!strcmp(value, "winnt"))
+				opts->shortname = VFAT_SFN_DISPLAY_WINNT
+						| VFAT_SFN_CREATE_WINNT;
+			else if (!strcmp(value, "mixed"))
+				opts->shortname = VFAT_SFN_DISPLAY_WINNT
+						| VFAT_SFN_CREATE_WIN95;
+			else
+				ret = 0;
+		}
+		if (this_char != options)
+			*(this_char-1) = ',';
+		if (value) {
+			*savep = save;
+		}
+		if (ret == 0) {
+			return 0;
+		}
+	}
+	if (opts->unicode_xlate) {
+		opts->utf8 = 0;
+	}
+	return 1;
+}
+
+static inline unsigned char
+vfat_tolower(struct nls_table *t, unsigned char c)
+{
+	unsigned char nc = t->charset2lower[c];
+
+	return nc ? nc : c;
+}
+
+static inline unsigned char
+vfat_toupper(struct nls_table *t, unsigned char c)
+{
+	unsigned char nc = t->charset2upper[c];
+
+	return nc ? nc : c;
+}
+
+static int
+vfat_strnicmp(struct nls_table *t, const unsigned char *s1,
+					const unsigned char *s2, int len)
+{
+	while(len--)
+		if (vfat_tolower(t, *s1++) != vfat_tolower(t, *s2++))
+			return 1;
+
+	return 0;
+}
+
+/*
+ * Compute the hash for the vfat name corresponding to the dentry.
+ * Note: if the name is invalid, we leave the hash code unchanged so
+ * that the existing dentry can be used. The vfat fs routines will
+ * return ENOENT or EINVAL as appropriate.
+ */
+static int vfat_hash(struct dentry *dentry, struct qstr *qstr)
+{
+	const char *name;
+	int len;
+
+	len = qstr->len;
+	name = qstr->name;
+	while (len && name[len-1] == '.')
+		len--;
+
+	qstr->hash = full_name_hash(name, len);
+
+	return 0;
+}
+
+/*
+ * Compute the hash for the vfat name corresponding to the dentry.
+ * Note: if the name is invalid, we leave the hash code unchanged so
+ * that the existing dentry can be used. The vfat fs routines will
+ * return ENOENT or EINVAL as appropriate.
+ */
+static int vfat_hashi(struct dentry *dentry, struct qstr *qstr)
+{
+	struct nls_table *t = MSDOS_SB(dentry->d_inode->i_sb)->nls_io;
+	const char *name;
+	int len;
+	unsigned long hash;
+
+	len = qstr->len;
+	name = qstr->name;
+	while (len && name[len-1] == '.')
+		len--;
+
+	hash = init_name_hash();
+	while (len--)
+		hash = partial_name_hash(vfat_tolower(t, *name++), hash);
+	qstr->hash = end_name_hash(hash);
+
+	return 0;
+}
+
+/*
+ * Case insensitive compare of two vfat names.
+ */
+static int vfat_cmpi(struct dentry *dentry, struct qstr *a, struct qstr *b)
+{
+	struct nls_table *t = MSDOS_SB(dentry->d_inode->i_sb)->nls_io;
+	int alen, blen;
+
+	/* A filename cannot end in '.' or we treat it like it has none */
+	alen = a->len;
+	blen = b->len;
+	while (alen && a->name[alen-1] == '.')
+		alen--;
+	while (blen && b->name[blen-1] == '.')
+		blen--;
+	if (alen == blen) {
+		if (vfat_strnicmp(t, a->name, b->name, alen) == 0)
+			return 0;
+	}
+	return 1;
+}
+
+/*
+ * Case sensitive compare of two vfat names.
+ */
+static int vfat_cmp(struct dentry *dentry, struct qstr *a, struct qstr *b)
+{
+	int alen, blen;
+
+	/* A filename cannot end in '.' or we treat it like it has none */
+	alen = a->len;
+	blen = b->len;
+	while (alen && a->name[alen-1] == '.')
+		alen--;
+	while (blen && b->name[blen-1] == '.')
+		blen--;
+	if (alen == blen) {
+		if (strncmp(a->name, b->name, alen) == 0)
+			return 0;
+	}
+	return 1;
+}
+
+#ifdef DEBUG
+
+static void dump_fat(struct super_block *sb,int start)
+{
+	printk("[");
+	while (start) {
+		printk("%d ",start);
+		start = fat_access(sb,start,-1);
+		if (!start) {
+			printk("ERROR");
+			break;
+		}
+		if (start == -1) break;
+	}
+	printk("]\n");
+}
+
+static void dump_de(struct msdos_dir_entry *de)
+{
+	int i;
+	unsigned char *p = (unsigned char *) de;
+	printk("[");
+
+	for (i = 0; i < 32; i++, p++) {
+		printk("%02x ", *p);
+	}
+	printk("]\n");
+}
+
+#endif
+
+/* MS-DOS "device special files" */
+
+static const char *reserved3_names[] = {
+	"con     ", "prn     ", "nul     ", "aux     ", NULL
+};
+
+static const char *reserved4_names[] = {
+	"com1    ", "com2    ", "com3    ", "com4    ", "com5    ",
+	"com6    ", "com7    ", "com8    ", "com9    ",
+	"lpt1    ", "lpt2    ", "lpt3    ", "lpt4    ", "lpt5    ",
+	"lpt6    ", "lpt7    ", "lpt8    ", "lpt9    ",
+	NULL };
+
+
+/* Characters that are undesirable in an MS-DOS file name */
+
+static wchar_t bad_chars[] = {
+	/*  `*'     `?'     `<'    `>'      `|'     `"'     `:'     `/' */
+	0x002A, 0x003F, 0x003C, 0x003E, 0x007C, 0x0022, 0x003A, 0x002F,
+	/*  `\' */
+	0x005C, 0,
+};
+#define IS_BADCHAR(uni)	(vfat_unistrchr(bad_chars, (uni)) != NULL)
+
+static wchar_t replace_chars[] = {
+	/*  `['     `]'    `;'     `,'     `+'      `=' */
+	0x005B, 0x005D, 0x003B, 0x002C, 0x002B, 0x003D, 0,
+};
+#define IS_REPLACECHAR(uni)	(vfat_unistrchr(replace_chars, (uni)) != NULL)
+
+static wchar_t skip_chars[] = {
+	/*  `.'     ` ' */
+	0x002E, 0x0020, 0,
+};
+#define IS_SKIPCHAR(uni) \
+	((wchar_t)(uni) == skip_chars[0] || (wchar_t)(uni) == skip_chars[1])
+
+static inline wchar_t *vfat_unistrchr(const wchar_t *s, const wchar_t c)
+{
+	for(; *s != c; ++s)
+		if (*s == 0)
+			return NULL;
+	return (wchar_t *) s;
+}
+
+static inline int vfat_is_used_badchars(const wchar_t *s, int len)
+{
+	int i;
+	
+	for (i = 0; i < len; i++)
+		if (s[i] < 0x0020 || IS_BADCHAR(s[i]))
+			return -EINVAL;
+	return 0;
+}
+
+/* Checks the validity of a long MS-DOS filename */
+/* Returns negative number on error, 0 for a normal
+ * return, and 1 for . or .. */
+
+static int vfat_valid_longname(const char *name, int len, int xlate)
+{
+	const char **reserved, *walk;
+	int baselen;
+
+	if (len && name[len-1] == ' ') return -EINVAL;
+	if (len >= 256) return -EINVAL;
+ 	if (len < 3) return 0;
+
+	for (walk = name; *walk != 0 && *walk != '.'; walk++);
+	baselen = walk - name;
+
+	if (baselen == 3) {
+		for (reserved = reserved3_names; *reserved; reserved++) {
+			if (!strnicmp(name,*reserved,baselen))
+				return -EINVAL;
+		}
+	} else if (baselen == 4) {
+		for (reserved = reserved4_names; *reserved; reserved++) {
+			if (!strnicmp(name,*reserved,baselen))
+				return -EINVAL;
+		}
+	}
+	return 0;
+}
+
+static int vfat_find_form(struct inode *dir,char *name)
+{
+	struct msdos_dir_entry *de;
+	struct buffer_head *bh = NULL;
+	loff_t i_pos;
+	int res;
+
+	res = fat_scan(dir, name, &bh, &de, &i_pos);
+	fat_brelse(dir->i_sb, bh);
+	if (res<0)
+		return -ENOENT;
+	return 0;
+}
+
+/* 
+ * 1) Valid characters for the 8.3 format alias are any combination of
+ * letters, uppercase alphabets, digits, any of the
+ * following special characters:
+ *     $ % ' ` - @ { } ~ ! # ( ) & _ ^
+ * In this case Longfilename is not stored in disk.
+ *
+ * WinNT's Extension:
+ * File name and extension name is contain uppercase/lowercase
+ * only. And it is expressed by CASE_LOWER_BASE and CASE_LOWER_EXT.
+ *     
+ * 2) File name is 8.3 format, but it contain the uppercase and
+ * lowercase char, muliti bytes char, etc. In this case numtail is not
+ * added, but Longfilename is stored.
+ * 
+ * 3) When the one except for the above, or the following special
+ * character are contained:
+ *        .   [ ] ; , + =
+ * numtail is added, and Longfilename must be stored in disk .
+ */
+struct shortname_info {
+	unsigned char lower:1,
+		      upper:1,
+		      valid:1;
+};
+#define INIT_SHORTNAME_INFO(x)	do {		\
+	(x)->lower = 1;				\
+	(x)->upper = 1;				\
+	(x)->valid = 1;				\
+} while (0)
+
+static inline unsigned char
+shortname_info_to_lcase(struct shortname_info *base,
+			struct shortname_info *ext)
+{
+	unsigned char lcase = 0;
+
+	if (base->valid && ext->valid) {
+		if (!base->upper && base->lower && (ext->lower || ext->upper))
+			lcase |= CASE_LOWER_BASE;
+		if (!ext->upper && ext->lower && (base->lower || base->upper))
+			lcase |= CASE_LOWER_EXT;
+	}
+
+	return lcase;
+}
+
+static inline int to_shortname_char(struct nls_table *nls,
+				    char *buf, int buf_size, wchar_t *src,
+				    struct shortname_info *info)
+{
+	int len;
+
+	if (IS_SKIPCHAR(*src)) {
+		info->valid = 0;
+		return 0;
+	}
+	if (IS_REPLACECHAR(*src)) {
+		info->valid = 0;
+		buf[0] = '_';
+		return 1;
+	}
+	
+	len = nls->uni2char(*src, buf, buf_size);
+	if (len <= 0) {
+		info->valid = 0;
+		buf[0] = '_';
+		len = 1;
+	} else if (len == 1) {
+		unsigned char prev = buf[0];
+
+		if (buf[0] >= 0x7F) {
+			info->lower = 0;
+			info->upper = 0;
+		}
+
+		buf[0] = vfat_toupper(nls, buf[0]);
+		if (isalpha(buf[0])) {
+			if (buf[0] == prev)
+				info->lower = 0;
+			else
+				info->upper = 0;
+		}
+	} else {
+		info->lower = 0;
+		info->upper = 0;
+	}
+	
+	return len;
+}
+
+/*
+ * Given a valid longname, create a unique shortname.  Make sure the
+ * shortname does not exist
+ * Returns negative number on error, 0 for a normal
+ * return, and 1 for valid shortname
+ */
+static int vfat_create_shortname(struct inode *dir, struct nls_table *nls,
+				 wchar_t *uname, int ulen,
+				 char *name_res, unsigned char *lcase)
+{
+	wchar_t *ip, *ext_start, *end, *name_start;
+	unsigned char base[9], ext[4], buf[8], *p;
+	unsigned char charbuf[NLS_MAX_CHARSET_SIZE];
+	int chl, chi;
+	int sz = 0, extlen, baselen, i, numtail_baselen, numtail2_baselen;
+	int is_shortname;
+	struct shortname_info base_info, ext_info;
+	unsigned short opt_shortname = MSDOS_SB(dir->i_sb)->options.shortname;
+
+	is_shortname = 1;
+	INIT_SHORTNAME_INFO(&base_info);
+	INIT_SHORTNAME_INFO(&ext_info);
+
+	/* Now, we need to create a shortname from the long name */
+	ext_start = end = &uname[ulen];
+	while (--ext_start >= uname) {
+		if (*ext_start == 0x002E) { /* is `.' */
+			if (ext_start == end - 1) {
+				sz = ulen;
+				ext_start = NULL;
+			}
+			break;
+		}
+	}
+
+	if (ext_start == uname - 1) {
+		sz = ulen;
+		ext_start = NULL;
+	} else if (ext_start) {
+		/*
+		 * Names which start with a dot could be just
+		 * an extension eg. "...test".  In this case Win95
+		 * uses the extension as the name and sets no extension.
+		 */
+		name_start = &uname[0];
+		while (name_start < ext_start) {
+			if (!IS_SKIPCHAR(*name_start))
+				break;
+			name_start++;
+		}
+		if (name_start != ext_start) {
+			sz = ext_start - uname;
+			ext_start++;
+		} else {
+			sz = ulen;
+			ext_start=NULL;
+		}
+	}
+
+	numtail_baselen = 6;
+	numtail2_baselen = 2;
+	for (baselen = i = 0, p = base, ip = uname; i < sz; i++, ip++) {
+		chl = to_shortname_char(nls, charbuf, sizeof(charbuf),
+					ip, &base_info);
+		if (chl == 0)
+			continue;
+
+		if (baselen < 2 && (baselen + chl) > 2)
+			numtail2_baselen = baselen;
+		if (baselen < 6 && (baselen + chl) > 6)
+			numtail_baselen = baselen;
+		for (chi = 0; chi < chl; chi++){
+			*p++ = charbuf[chi];
+			baselen++;
+			if (baselen >= 8)
+				break;
+		}
+		if (baselen >= 8) {
+			if ((chi < chl - 1) || (ip + 1) - uname < sz)
+				is_shortname = 0;
+			break;
+		}
+	}
+	if (baselen == 0) {
+		return -EINVAL;
+	}
+
+	extlen = 0;
+	if (ext_start) {
+		for (p = ext, ip = ext_start; extlen < 3 && ip < end; ip++) {
+			chl = to_shortname_char(nls, charbuf, sizeof(charbuf),
+						ip, &ext_info);
+			if (chl == 0)
+				continue;
+
+			if ((extlen + chl) > 3) {
+				is_shortname = 0;
+				break;
+			}
+			for (chi = 0; chi < chl; chi++) {
+				*p++ = charbuf[chi];
+				extlen++;
+			}
+			if (extlen >= 3) {
+				if (ip + 1 != end)
+					is_shortname = 0;
+				break;
+			}
+		}
+	}
+	ext[extlen] = '\0';
+	base[baselen] = '\0';
+
+	/* Yes, it can happen. ".\xe5" would do it. */
+	if (base[0] == DELETED_FLAG)
+		base[0] = 0x05;
+
+	/* OK, at this point we know that base is not longer than 8 symbols,
+	 * ext is not longer than 3, base is nonempty, both don't contain
+	 * any bad symbols (lowercase transformed to uppercase).
+	 */
+
+	memset(name_res, ' ', MSDOS_NAME);
+	memcpy(name_res, base, baselen);
+	memcpy(name_res + 8, ext, extlen);
+	*lcase = 0;
+	if (is_shortname && base_info.valid && ext_info.valid) {
+		if (vfat_find_form(dir, name_res) == 0)
+			return -EEXIST;
+
+		if (opt_shortname & VFAT_SFN_CREATE_WIN95) {
+			return (base_info.upper && ext_info.upper);
+		} else if (opt_shortname & VFAT_SFN_CREATE_WINNT) {
+			if ((base_info.upper || base_info.lower)
+			    && (ext_info.upper || ext_info.lower)) {
+				*lcase = shortname_info_to_lcase(&base_info,
+								 &ext_info);
+				return 1;
+			}
+			return 0;
+		} else {
+			BUG();
+		}
+	}
+	
+	if (MSDOS_SB(dir->i_sb)->options.numtail == 0)
+		if (vfat_find_form(dir, name_res) < 0)
+			return 0;
+
+	/*
+	 * Try to find a unique extension.  This used to
+	 * iterate through all possibilities sequentially,
+	 * but that gave extremely bad performance.  Windows
+	 * only tries a few cases before using random
+	 * values for part of the base.
+	 */
+
+	if (baselen>6) {
+		baselen = numtail_baselen;
+		name_res[7] = ' ';
+	}
+	name_res[baselen] = '~';
+	for (i = 1; i < 10; i++) {
+		name_res[baselen+1] = i + '0';
+		if (vfat_find_form(dir, name_res) < 0)
+			return 0;
+	}
+
+	i = jiffies & 0xffff;
+	sz = (jiffies >> 16) & 0x7;
+	if (baselen>2) {
+		baselen = numtail2_baselen;
+		name_res[7] = ' ';
+	}
+	name_res[baselen+4] = '~';
+	name_res[baselen+5] = '1' + sz;
+	while (1) {
+		sprintf(buf, "%04X", i);
+		memcpy(&name_res[baselen], buf, 4);
+		if (vfat_find_form(dir, name_res) < 0)
+			break;
+		i -= 11;
+	}
+	return 0;
+}
+
+/* Translate a string, including coded sequences into Unicode */
+static int
+xlate_to_uni(const char *name, int len, char *outname, int *longlen, int *outlen,
+	     int escape, int utf8, struct nls_table *nls)
+{
+	const unsigned char *ip;
+	unsigned char nc;
+	char *op;
+	unsigned int ec;
+	int i, k, fill;
+	int charlen;
+
+	if (utf8) {
+		*outlen = utf8_mbstowcs((__u16 *) outname, name, PAGE_SIZE);
+		if (name[len-1] == '.')
+			*outlen-=2;
+		op = &outname[*outlen * sizeof(__u16)];
+	} else {
+		if (name[len-1] == '.') 
+			len--;
+		if (nls) {
+			for (i = 0, ip = name, op = outname, *outlen = 0;
+			     i < len && *outlen <= 260; *outlen += 1)
+			{
+				if (escape && (*ip == ':')) {
+					if (i > len - 5)
+						return -EINVAL;
+					ec = 0;
+					for (k = 1; k < 5; k++) {
+						nc = ip[k];
+						ec <<= 4;
+						if (nc >= '0' && nc <= '9') {
+							ec |= nc - '0';
+							continue;
+						}
+						if (nc >= 'a' && nc <= 'f') {
+							ec |= nc - ('a' - 10);
+							continue;
+						}
+						if (nc >= 'A' && nc <= 'F') {
+							ec |= nc - ('A' - 10);
+							continue;
+						}
+						return -EINVAL;
+					}
+					*op++ = ec & 0xFF;
+					*op++ = ec >> 8;
+					ip += 5;
+					i += 5;
+				} else {
+					if ((charlen = nls->char2uni(ip, len-i, (wchar_t *)op)) < 0)
+						return -EINVAL;
+					ip += charlen;
+					i += charlen;
+					op += 2;
+				}
+			}
+		} else {
+			for (i = 0, ip = name, op = outname, *outlen = 0;
+			     i < len && *outlen <= 260; i++, *outlen += 1)
+			{
+				*op++ = *ip++;
+				*op++ = 0;
+			}
+		}
+	}
+	if (*outlen > 260)
+		return -ENAMETOOLONG;
+
+	*longlen = *outlen;
+	if (*outlen % 13) {
+		*op++ = 0;
+		*op++ = 0;
+		*outlen += 1;
+		if (*outlen % 13) {
+			fill = 13 - (*outlen % 13);
+			for (i = 0; i < fill; i++) {
+				*op++ = 0xff;
+				*op++ = 0xff;
+			}
+			*outlen += fill;
+		}
+	}
+
+	return 0;
+}
+
+static int
+vfat_fill_slots(struct inode *dir, struct msdos_dir_slot *ds, const char *name,
+		int len, int *slots, int is_dir, int uni_xlate)
+{
+	struct nls_table *nls_io, *nls_disk;
+	wchar_t *uname;
+	struct msdos_dir_slot *ps;
+	struct msdos_dir_entry *de;
+	unsigned long page;
+	unsigned char cksum, lcase;
+	char *uniname, msdos_name[MSDOS_NAME];
+	int res, utf8, slot, ulen, unilen, i;
+	loff_t offset;
+
+	*slots = 0;
+	utf8 = MSDOS_SB(dir->i_sb)->options.utf8;
+	nls_io = MSDOS_SB(dir->i_sb)->nls_io;
+	nls_disk = MSDOS_SB(dir->i_sb)->nls_disk;
+
+	if (name[len-1] == '.')
+		len--;
+	if(!(page = __get_free_page(GFP_KERNEL)))
+		return -ENOMEM;
+
+	uniname = (char *) page;
+	res = xlate_to_uni(name, len, uniname, &ulen, &unilen, uni_xlate,
+			   utf8, nls_io);
+	if (res < 0)
+		goto out_free;
+
+	uname = (wchar_t *) page;
+	res = vfat_is_used_badchars(uname, ulen);
+	if (res < 0)
+		goto out_free;
+
+	res = vfat_create_shortname(dir, nls_disk, uname, ulen,
+				    msdos_name, &lcase);
+	if (res < 0)
+		goto out_free;
+	else if (res == 1) {
+		de = (struct msdos_dir_entry *)ds;
+		res = 0;
+		goto shortname;
+	}
+
+	/* build the entry of long file name */
+	*slots = unilen / 13;
+	for (cksum = i = 0; i < 11; i++) {
+		cksum = (((cksum&1)<<7)|((cksum&0xfe)>>1)) + msdos_name[i];
+	}
+	PRINTK3(("vfat_fill_slots 3: slots=%d\n",*slots));
+
+	for (ps = ds, slot = *slots; slot > 0; slot--, ps++) {
+		ps->id = slot;
+		ps->attr = ATTR_EXT;
+		ps->reserved = 0;
+		ps->alias_checksum = cksum;
+		ps->start = 0;
+		offset = (slot - 1) * 13;
+		fatwchar_to16(ps->name0_4, uname + offset, 5);
+		fatwchar_to16(ps->name5_10, uname + offset + 5, 6);
+		fatwchar_to16(ps->name11_12, uname + offset + 11, 2);
+	}
+	ds[0].id |= 0x40;
+	de = (struct msdos_dir_entry *) ps;
+
+shortname:
+	PRINTK3(("vfat_fill_slots 9\n"));
+	/* build the entry of 8.3 alias name */
+	(*slots)++;
+	strncpy(de->name, msdos_name, MSDOS_NAME);
+	de->attr = is_dir ? ATTR_DIR : ATTR_ARCH;
+	de->lcase = lcase;
+	de->adate = de->cdate = de->date = 0;
+	de->ctime_ms = de->ctime = de->time = 0;
+	de->start = 0;
+	de->starthi = 0;
+	de->size = 0;
+
+out_free:
+	free_page(page);
+	return res;
+}
+
+/* We can't get "." or ".." here - VFS takes care of those cases */
+
+static int vfat_build_slots(struct inode *dir, const char *name, int len,
+			    struct msdos_dir_slot *ds, int *slots, int is_dir)
+{
+	int res, xlate;
+
+	xlate = MSDOS_SB(dir->i_sb)->options.unicode_xlate;
+	res = vfat_valid_longname(name, len, xlate);
+	if (res < 0)
+		return res;
+
+	return vfat_fill_slots(dir, ds, name, len, slots, is_dir, xlate);
+}
+
+static int vfat_add_entry(struct inode *dir,struct qstr* qname,
+			  int is_dir, struct vfat_slot_info *sinfo_out,
+			  struct buffer_head **bh, struct msdos_dir_entry **de)
+{
+	struct super_block *sb = dir->i_sb;
+	struct msdos_dir_slot *dir_slots;
+	loff_t offset;
+	int slots, slot;
+	int res, len;
+	struct msdos_dir_entry *dummy_de;
+	struct buffer_head *dummy_bh;
+	loff_t dummy_i_pos;
+	loff_t dummy;
+
+	dir_slots = (struct msdos_dir_slot *)
+	       kmalloc(sizeof(struct msdos_dir_slot) * MSDOS_SLOTS, GFP_KERNEL);
+	if (dir_slots == NULL)
+		return -ENOMEM;
+
+	len = qname->len;
+	while (len && qname->name[len-1] == '.')
+		len--;
+	res = fat_search_long(dir, qname->name, len,
+			      (MSDOS_SB(sb)->options.name_check != 's')
+			      || !MSDOS_SB(sb)->options.posixfs,
+			      &dummy, &dummy);
+	if (res > 0) /* found */
+		res = -EEXIST;
+	if (res)
+		goto cleanup;
+
+	res = vfat_build_slots(dir, qname->name, len,
+			       dir_slots, &slots, is_dir);
+	if (res < 0)
+		goto cleanup;
+
+	/* build the empty directory entry of number of slots */
+	offset = fat_add_entries(dir, slots, &dummy_bh, &dummy_de, &dummy_i_pos);
+	if (offset < 0) {
+		res = offset;
+		goto cleanup;
+	}
+	fat_brelse(sb, dummy_bh);
+
+	/* Now create the new entry */
+	*bh = NULL;
+	for (slot = 0; slot < slots; slot++) {
+		if (fat_get_entry(dir, &offset, bh, de, &sinfo_out->i_pos) < 0) {
+			res = -EIO;
+			goto cleanup;
+		}
+		memcpy(*de, dir_slots + slot, sizeof(struct msdos_dir_slot));
+		fat_mark_buffer_dirty(sb, *bh);
+	}
+
+	res = 0;
+	/* update timestamp */
+	dir->i_ctime = dir->i_mtime = dir->i_atime = CURRENT_TIME;
+	mark_inode_dirty(dir);
+
+	fat_date_unix2dos(dir->i_mtime, &(*de)->time, &(*de)->date);
+	(*de)->ctime = (*de)->time;
+	(*de)->adate = (*de)->cdate = (*de)->date;
+
+	fat_mark_buffer_dirty(sb, *bh);
+
+	/* slots can't be less than 1 */
+	sinfo_out->long_slots = slots - 1;
+	sinfo_out->longname_offset =
+		offset - sizeof(struct msdos_dir_slot) * slots;
+
+cleanup:
+	kfree(dir_slots);
+	return res;
+}
+
+static int vfat_find(struct inode *dir,struct qstr* qname,
+	struct vfat_slot_info *sinfo, struct buffer_head **last_bh,
+	struct msdos_dir_entry **last_de)
+{
+	struct super_block *sb = dir->i_sb;
+	loff_t offset;
+	int res,len;
+
+	len = qname->len;
+	while (len && qname->name[len-1] == '.') 
+		len--;
+	res = fat_search_long(dir, qname->name, len,
+			(MSDOS_SB(sb)->options.name_check != 's'),
+			&offset,&sinfo->longname_offset);
+	if (res>0) {
+		sinfo->long_slots = res-1;
+		if (fat_get_entry(dir,&offset,last_bh,last_de,&sinfo->i_pos)>=0)
+			return 0;
+		res = -EIO;
+	} 
+	return res ? res : -ENOENT;
+}
+
+struct dentry *vfat_lookup(struct inode *dir,struct dentry *dentry)
+{
+	int res;
+	struct vfat_slot_info sinfo;
+	struct inode *inode;
+	struct dentry *alias;
+	struct buffer_head *bh = NULL;
+	struct msdos_dir_entry *de;
+	int table;
+	
+	PRINTK2(("vfat_lookup: name=%s, len=%d\n", 
+		 dentry->d_name.name, dentry->d_name.len));
+
+	table = (MSDOS_SB(dir->i_sb)->options.name_check == 's') ? 2 : 0;
+	dentry->d_op = &vfat_dentry_ops[table];
+
+	inode = NULL;
+	res = vfat_find(dir,&dentry->d_name,&sinfo,&bh,&de);
+	if (res < 0) {
+		table++;
+		goto error;
+	}
+	inode = fat_build_inode(dir->i_sb, de, sinfo.i_pos, &res);
+	fat_brelse(dir->i_sb, bh);
+	if (res)
+		return ERR_PTR(res);
+	alias = d_find_alias(inode);
+	if (alias) {
+		if (d_invalidate(alias)==0)
+			dput(alias);
+		else {
+			iput(inode);
+			return alias;
+		}
+		
+	}
+error:
+	dentry->d_op = &vfat_dentry_ops[table];
+	dentry->d_time = dentry->d_parent->d_inode->i_version;
+	d_add(dentry,inode);
+	return NULL;
+}
+
+int vfat_create(struct inode *dir,struct dentry* dentry,int mode)
+{
+	struct super_block *sb = dir->i_sb;
+	struct inode *inode = NULL;
+	struct buffer_head *bh = NULL;
+	struct msdos_dir_entry *de;
+	struct vfat_slot_info sinfo;
+	int res;
+
+	res = vfat_add_entry(dir, &dentry->d_name, 0, &sinfo, &bh, &de);
+	if (res < 0)
+		return res;
+	inode = fat_build_inode(sb, de, sinfo.i_pos, &res);
+	fat_brelse(sb, bh);
+	if (!inode)
+		return res;
+	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+	mark_inode_dirty(inode);
+	inode->i_version = ++event;
+	dir->i_version = event;
+	dentry->d_time = dentry->d_parent->d_inode->i_version;
+	d_instantiate(dentry,inode);
+	return 0;
+}
+
+static void vfat_remove_entry(struct inode *dir,struct vfat_slot_info *sinfo,
+     struct buffer_head *bh, struct msdos_dir_entry *de)
+{
+	struct super_block *sb = dir->i_sb;
+	loff_t offset, i_pos;
+	int i;
+
+	/* remove the shortname */
+	dir->i_mtime = CURRENT_TIME;
+	dir->i_atime = CURRENT_TIME;
+	dir->i_version = ++event;
+	mark_inode_dirty(dir);
+	de->name[0] = DELETED_FLAG;
+	fat_mark_buffer_dirty(sb, bh);
+	/* remove the longname */
+	offset = sinfo->longname_offset; de = NULL;
+	for (i = sinfo->long_slots; i > 0; --i) {
+		if (fat_get_entry(dir, &offset, &bh, &de, &i_pos) < 0)
+			continue;
+		de->name[0] = DELETED_FLAG;
+		de->attr = 0;
+		fat_mark_buffer_dirty(sb, bh);
+	}
+	if (bh) fat_brelse(sb, bh);
+}
+
+int vfat_rmdir(struct inode *dir,struct dentry* dentry)
+{
+	int res;
+	struct vfat_slot_info sinfo;
+	struct buffer_head *bh = NULL;
+	struct msdos_dir_entry *de;
+
+	res = fat_dir_empty(dentry->d_inode);
+	if (res)
+		return res;
+
+	res = vfat_find(dir,&dentry->d_name,&sinfo, &bh, &de);
+	if (res<0)
+		return res;
+	dentry->d_inode->i_nlink = 0;
+	dentry->d_inode->i_mtime = CURRENT_TIME;
+	dentry->d_inode->i_atime = CURRENT_TIME;
+	fat_detach(dentry->d_inode);
+	mark_inode_dirty(dentry->d_inode);
+	/* releases bh */
+	vfat_remove_entry(dir,&sinfo,bh,de);
+	dir->i_nlink--;
+	return 0;
+}
+
+int vfat_unlink(struct inode *dir, struct dentry* dentry)
+{
+	int res;
+	struct vfat_slot_info sinfo;
+	struct buffer_head *bh = NULL;
+	struct msdos_dir_entry *de;
+
+	PRINTK1(("vfat_unlink: %s\n", dentry->d_name.name));
+	res = vfat_find(dir,&dentry->d_name,&sinfo,&bh,&de);
+	if (res < 0)
+		return res;
+	dentry->d_inode->i_nlink = 0;
+	dentry->d_inode->i_mtime = CURRENT_TIME;
+	dentry->d_inode->i_atime = CURRENT_TIME;
+	fat_detach(dentry->d_inode);
+	mark_inode_dirty(dentry->d_inode);
+	/* releases bh */
+	vfat_remove_entry(dir,&sinfo,bh,de);
+
+	return res;
+}
+
+
+int vfat_mkdir(struct inode *dir,struct dentry* dentry,int mode)
+{
+	struct super_block *sb = dir->i_sb;
+	struct inode *inode = NULL;
+	struct vfat_slot_info sinfo;
+	struct buffer_head *bh = NULL;
+	struct msdos_dir_entry *de;
+	int res;
+
+	res = vfat_add_entry(dir, &dentry->d_name, 1, &sinfo, &bh, &de);
+	if (res < 0)
+		return res;
+	inode = fat_build_inode(sb, de, sinfo.i_pos, &res);
+	if (!inode)
+		goto out;
+	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+	mark_inode_dirty(inode);
+	inode->i_version = ++event;
+	dir->i_version = event;
+	dir->i_nlink++;
+	inode->i_nlink = 2; /* no need to mark them dirty */
+	res = fat_new_dir(inode, dir, 1);
+	if (res < 0)
+		goto mkdir_failed;
+	dentry->d_time = dentry->d_parent->d_inode->i_version;
+	d_instantiate(dentry,inode);
+out:
+	fat_brelse(sb, bh);
+	return res;
+
+mkdir_failed:
+	inode->i_nlink = 0;
+	inode->i_mtime = CURRENT_TIME;
+	inode->i_atime = CURRENT_TIME;
+	fat_detach(inode);
+	mark_inode_dirty(inode);
+	/* releases bh */
+	vfat_remove_entry(dir,&sinfo,bh,de);
+	iput(inode);
+	dir->i_nlink--;
+	return res;
+}
+ 
+int vfat_rename(struct inode *old_dir,struct dentry *old_dentry,
+		struct inode *new_dir,struct dentry *new_dentry)
+{
+	struct super_block *sb = old_dir->i_sb;
+	struct buffer_head *old_bh,*new_bh,*dotdot_bh;
+	struct msdos_dir_entry *old_de,*new_de,*dotdot_de;
+	loff_t dotdot_i_pos;
+	struct inode *old_inode, *new_inode;
+	int res, is_dir;
+	struct vfat_slot_info old_sinfo,sinfo;
+
+	old_bh = new_bh = dotdot_bh = NULL;
+	old_inode = old_dentry->d_inode;
+	new_inode = new_dentry->d_inode;
+	res = vfat_find(old_dir,&old_dentry->d_name,&old_sinfo,&old_bh,&old_de);
+	PRINTK3(("vfat_rename 2\n"));
+	if (res < 0) goto rename_done;
+
+	is_dir = S_ISDIR(old_inode->i_mode);
+
+	if (is_dir && (res = fat_scan(old_inode,MSDOS_DOTDOT,&dotdot_bh,
+				&dotdot_de,&dotdot_i_pos)) < 0)
+		goto rename_done;
+
+	if (new_dentry->d_inode) {
+		res = vfat_find(new_dir,&new_dentry->d_name,&sinfo,&new_bh,
+				&new_de);
+		if (res < 0 || MSDOS_I(new_inode)->i_pos != sinfo.i_pos) {
+			/* WTF??? Cry and fail. */
+			printk(KERN_WARNING "vfat_rename: fs corrupted\n");
+			goto rename_done;
+		}
+
+		if (is_dir) {
+			res = fat_dir_empty(new_inode);
+			if (res)
+				goto rename_done;
+		}
+		fat_detach(new_inode);
+	} else {
+		res = vfat_add_entry(new_dir,&new_dentry->d_name,is_dir,&sinfo,
+					&new_bh,&new_de);
+		if (res < 0) goto rename_done;
+	}
+
+	new_dir->i_version = ++event;
+
+	/* releases old_bh */
+	vfat_remove_entry(old_dir,&old_sinfo,old_bh,old_de);
+	old_bh=NULL;
+	fat_detach(old_inode);
+	fat_attach(old_inode, sinfo.i_pos);
+	mark_inode_dirty(old_inode);
+
+	old_dir->i_version = ++event;
+	old_dir->i_ctime = old_dir->i_mtime = CURRENT_TIME;
+	mark_inode_dirty(old_dir);
+	if (new_inode) {
+		new_inode->i_nlink--;
+		new_inode->i_ctime=CURRENT_TIME;
+	}
+
+	if (is_dir) {
+		int start = MSDOS_I(new_dir)->i_logstart;
+		dotdot_de->start = CT_LE_W(start);
+		dotdot_de->starthi = CT_LE_W(start>>16);
+		fat_mark_buffer_dirty(sb, dotdot_bh);
+		old_dir->i_nlink--;
+		if (new_inode) {
+			new_inode->i_nlink--;
+		} else {
+			new_dir->i_nlink++;
+			mark_inode_dirty(new_dir);
+		}
+	}
+
+rename_done:
+	fat_brelse(sb, dotdot_bh);
+	fat_brelse(sb, old_bh);
+	fat_brelse(sb, new_bh);
+	return res;
+
+}
+
+
+/* Public inode operations for the VFAT fs */
+struct inode_operations vfat_dir_inode_operations = {
+	create:		vfat_create,
+	lookup:		vfat_lookup,
+	unlink:		vfat_unlink,
+	mkdir:		vfat_mkdir,
+	rmdir:		vfat_rmdir,
+	rename:		vfat_rename,
+	setattr:	fat_notify_change,
+};
+
+struct super_block *vfat_read_super(struct super_block *sb,void *data,
+				    int silent)
+{
+	struct super_block *res;
+  
+	MSDOS_SB(sb)->options.isvfat = 1;
+
+	res = fat_read_super(sb, data, silent, &vfat_dir_inode_operations);
+	if (res == NULL)
+		return NULL;
+
+	if (parse_options((char *) data, &(MSDOS_SB(sb)->options))) {
+		MSDOS_SB(sb)->options.dotsOK = 0;
+		if (MSDOS_SB(sb)->options.posixfs) {
+			MSDOS_SB(sb)->options.name_check = 's';
+		}
+		if (MSDOS_SB(sb)->options.name_check != 's') {
+			sb->s_root->d_op = &vfat_dentry_ops[0];
+		} else {
+			sb->s_root->d_op = &vfat_dentry_ops[2];
+		}
+	}
+
+	return res;
+}
diff --git a/fs/vfat/vfatfs_syms.c b/fs/vfat/vfatfs_syms.c
new file mode 100644
index 00000000000000..2feb1222db3465
--- /dev/null
+++ b/fs/vfat/vfatfs_syms.c
@@ -0,0 +1,36 @@
+/*
+ * linux/fs/msdos/vfatfs_syms.c
+ *
+ * Exported kernel symbols for the VFAT filesystem.
+ * These symbols are used by dmsdos.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+
+#include <linux/mm.h>
+#include <linux/msdos_fs.h>
+
+DECLARE_FSTYPE_DEV(vfat_fs_type, "vfat", vfat_read_super);
+
+EXPORT_SYMBOL(vfat_create);
+EXPORT_SYMBOL(vfat_unlink);
+EXPORT_SYMBOL(vfat_mkdir);
+EXPORT_SYMBOL(vfat_rmdir);
+EXPORT_SYMBOL(vfat_rename);
+EXPORT_SYMBOL(vfat_read_super);
+EXPORT_SYMBOL(vfat_lookup);
+
+static int __init init_vfat_fs(void)
+{
+	return register_filesystem(&vfat_fs_type);
+}
+
+static void __exit exit_vfat_fs(void)
+{
+	unregister_filesystem(&vfat_fs_type);
+}
+
+module_init(init_vfat_fs)
+module_exit(exit_vfat_fs)
+MODULE_LICENSE("GPL");
diff --git a/fs/xattr.c b/fs/xattr.c
new file mode 100644
index 00000000000000..b6a52027873603
--- /dev/null
+++ b/fs/xattr.c
@@ -0,0 +1,355 @@
+/*
+  File: fs/xattr.c
+
+  Extended attribute handling.
+
+  Copyright (C) 2001 by Andreas Gruenbacher <a.gruenbacher@computer.org>
+  Copyright (C) 2001 SGI - Silicon Graphics, Inc <linux-xfs@oss.sgi.com>
+ */
+#include <linux/fs.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/smp_lock.h>
+#include <linux/file.h>
+#include <linux/xattr.h>
+#include <asm/uaccess.h>
+
+/*
+ * Extended attribute memory allocation wrappers, originally
+ * based on the Intermezzo PRESTO_ALLOC/PRESTO_FREE macros.
+ * The vmalloc use here is very uncommon - extended attributes
+ * are supposed to be small chunks of metadata, and it is quite
+ * unusual to have very many extended attributes, so lists tend
+ * to be quite short as well.  The 64K upper limit is derived
+ * from the extended attribute size limit used by XFS.
+ * Intentionally allow zero @size for value/list size requests.
+ */
+static void *
+xattr_alloc(size_t size, size_t limit)
+{
+	void *ptr;
+
+	if (size > limit)
+		return ERR_PTR(-E2BIG);
+
+	if (!size)	/* size request, no buffer is needed */
+		return NULL;
+	else if (size <= PAGE_SIZE)
+		ptr = kmalloc((unsigned long) size, GFP_KERNEL);
+	else
+		ptr = vmalloc((unsigned long) size);
+	if (!ptr)
+		return ERR_PTR(-ENOMEM);
+	return ptr;
+}
+
+static void
+xattr_free(void *ptr, size_t size)
+{
+	if (!size)	/* size request, no buffer was needed */
+		return;
+	else if (size <= PAGE_SIZE)
+		kfree(ptr);
+	else
+		vfree(ptr);
+}
+
+/*
+ * Extended attribute SET operations
+ */
+static long
+setxattr(struct dentry *d, char *name, void *value, size_t size, int flags)
+{
+	int error;
+	void *kvalue;
+	char kname[XATTR_NAME_MAX + 1];
+
+	if (flags & ~(XATTR_CREATE|XATTR_REPLACE))
+		return -EINVAL;
+
+	error = strncpy_from_user(kname, name, sizeof(kname));
+	if (error == 0 || error == sizeof(kname))
+		error = -ERANGE;
+	if (error < 0)
+		return error;
+
+	kvalue = xattr_alloc(size, XATTR_SIZE_MAX);
+	if (IS_ERR(kvalue))
+		return PTR_ERR(kvalue);
+
+	if (size > 0 && copy_from_user(kvalue, value, size)) {
+		xattr_free(kvalue, size);
+		return -EFAULT;
+	}
+
+	error = -EOPNOTSUPP;
+	if (d->d_inode->i_op && d->d_inode->i_op->setxattr) {
+		down(&d->d_inode->i_sem);
+		lock_kernel();
+		error = d->d_inode->i_op->setxattr(d, kname, kvalue, size, flags);
+		unlock_kernel();
+		up(&d->d_inode->i_sem);
+	}
+
+	xattr_free(kvalue, size);
+	return error;
+}
+
+asmlinkage long
+sys_setxattr(char *path, char *name, void *value, size_t size, int flags)
+{
+	struct nameidata nd;
+	int error;
+
+	error = user_path_walk(path, &nd);
+	if (error)
+		return error;
+	error = setxattr(nd.dentry, name, value, size, flags);
+	path_release(&nd);
+	return error;
+}
+
+asmlinkage long
+sys_lsetxattr(char *path, char *name, void *value, size_t size, int flags)
+{
+	struct nameidata nd;
+	int error;
+
+	error = user_path_walk_link(path, &nd);
+	if (error)
+		return error;
+	error = setxattr(nd.dentry, name, value, size, flags);
+	path_release(&nd);
+	return error;
+}
+
+asmlinkage long
+sys_fsetxattr(int fd, char *name, void *value, size_t size, int flags)
+{
+	struct file *f;
+	int error = -EBADF;
+
+	f = fget(fd);
+	if (!f)
+		return error;
+	error = setxattr(f->f_dentry, name, value, size, flags);
+	fput(f);
+	return error;
+}
+
+/*
+ * Extended attribute GET operations
+ */
+static ssize_t
+getxattr(struct dentry *d, char *name, void *value, size_t size)
+{
+	ssize_t error;
+	void *kvalue;
+	char kname[XATTR_NAME_MAX + 1];
+
+	error = strncpy_from_user(kname, name, sizeof(kname));
+	if (error == 0 || error == sizeof(kname))
+		error = -ERANGE;
+	if (error < 0)
+		return error;
+
+	kvalue = xattr_alloc(size, XATTR_SIZE_MAX);
+	if (IS_ERR(kvalue))
+		return PTR_ERR(kvalue);
+
+	error = -EOPNOTSUPP;
+	if (d->d_inode->i_op && d->d_inode->i_op->getxattr) {
+		down(&d->d_inode->i_sem);
+		lock_kernel();
+		error = d->d_inode->i_op->getxattr(d, kname, kvalue, size);
+		unlock_kernel();
+		up(&d->d_inode->i_sem);
+	}
+
+	if (kvalue && error > 0)
+		if (copy_to_user(value, kvalue, error))
+			error = -EFAULT;
+	xattr_free(kvalue, size);
+	return error;
+}
+
+asmlinkage ssize_t
+sys_getxattr(char *path, char *name, void *value, size_t size)
+{
+	struct nameidata nd;
+	ssize_t error;
+
+	error = user_path_walk(path, &nd);
+	if (error)
+		return error;
+	error = getxattr(nd.dentry, name, value, size);
+	path_release(&nd);
+	return error;
+}
+
+asmlinkage ssize_t
+sys_lgetxattr(char *path, char *name, void *value, size_t size)
+{
+	struct nameidata nd;
+	ssize_t error;
+
+	error = user_path_walk_link(path, &nd);
+	if (error)
+		return error;
+	error = getxattr(nd.dentry, name, value, size);
+	path_release(&nd);
+	return error;
+}
+
+asmlinkage ssize_t
+sys_fgetxattr(int fd, char *name, void *value, size_t size)
+{
+	struct file *f;
+	ssize_t error = -EBADF;
+
+	f = fget(fd);
+	if (!f)
+		return error;
+	error = getxattr(f->f_dentry, name, value, size);
+	fput(f);
+	return error;
+}
+
+/*
+ * Extended attribute LIST operations
+ */
+static ssize_t
+listxattr(struct dentry *d, char *list, size_t size)
+{
+	ssize_t error;
+	char *klist;
+
+	klist = (char *)xattr_alloc(size, XATTR_LIST_MAX);
+	if (IS_ERR(klist))
+		return PTR_ERR(klist);
+
+	error = -EOPNOTSUPP;
+	if (d->d_inode->i_op && d->d_inode->i_op->listxattr) {
+		down(&d->d_inode->i_sem);
+		lock_kernel();
+		error = d->d_inode->i_op->listxattr(d, klist, size);
+		unlock_kernel();
+		up(&d->d_inode->i_sem);
+	}
+
+	if (klist && error > 0)
+		if (copy_to_user(list, klist, error))
+			error = -EFAULT;
+	xattr_free(klist, size);
+	return error;
+}
+
+asmlinkage ssize_t
+sys_listxattr(char *path, char *list, size_t size)
+{
+	struct nameidata nd;
+	ssize_t error;
+
+	error = user_path_walk(path, &nd);
+	if (error)
+		return error;
+	error = listxattr(nd.dentry, list, size);
+	path_release(&nd);
+	return error;
+}
+
+asmlinkage ssize_t
+sys_llistxattr(char *path, char *list, size_t size)
+{
+	struct nameidata nd;
+	ssize_t error;
+
+	error = user_path_walk_link(path, &nd);
+	if (error)
+		return error;
+	error = listxattr(nd.dentry, list, size);
+	path_release(&nd);
+	return error;
+}
+
+asmlinkage ssize_t
+sys_flistxattr(int fd, char *list, size_t size)
+{
+	struct file *f;
+	ssize_t error = -EBADF;
+
+	f = fget(fd);
+	if (!f)
+		return error;
+	error = listxattr(f->f_dentry, list, size);
+	fput(f);
+	return error;
+}
+
+/*
+ * Extended attribute REMOVE operations
+ */
+static long
+removexattr(struct dentry *d, char *name)
+{
+	int error;
+	char kname[XATTR_NAME_MAX + 1];
+
+	error = strncpy_from_user(kname, name, sizeof(kname));
+	if (error == 0 || error == sizeof(kname))
+		error = -ERANGE;
+	if (error < 0)
+		return error;
+
+	error = -EOPNOTSUPP;
+	if (d->d_inode->i_op && d->d_inode->i_op->removexattr) {
+		down(&d->d_inode->i_sem);
+		lock_kernel();
+		error = d->d_inode->i_op->removexattr(d, kname);
+		unlock_kernel();
+		up(&d->d_inode->i_sem);
+	}
+	return error;
+}
+
+asmlinkage long
+sys_removexattr(char *path, char *name)
+{
+	struct nameidata nd;
+	int error;
+
+	error = user_path_walk(path, &nd);
+	if (error)
+		return error;
+	error = removexattr(nd.dentry, name);
+	path_release(&nd);
+	return error;
+}
+
+asmlinkage long
+sys_lremovexattr(char *path, char *name)
+{
+	struct nameidata nd;
+	int error;
+
+	error = user_path_walk_link(path, &nd);
+	if (error)
+		return error;
+	error = removexattr(nd.dentry, name);
+	path_release(&nd);
+	return error;
+}
+
+asmlinkage long
+sys_fremovexattr(int fd, char *name)
+{
+	struct file *f;
+	int error = -EBADF;
+
+	f = fget(fd);
+	if (!f)
+		return error;
+	error = removexattr(f->f_dentry, name);
+	fput(f);
+	return error;
+}
diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile
new file mode 100644
index 00000000000000..4ab74b92e265f4
--- /dev/null
+++ b/fs/xfs/Makefile
@@ -0,0 +1,134 @@
+#
+# Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of version 2 of the GNU General Public License as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it would be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#
+# Further, this software is distributed without any warranty that it is
+# free of the rightful claim of any third person regarding infringement
+# or the like.  Any license provided herein, whether implied or
+# otherwise, applies only to this software file.  Patent licenses, if
+# any, provided herein do not apply to combinations of this program with
+# other software, or any other product whatsoever.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write the Free Software Foundation, Inc., 59
+# Temple Place - Suite 330, Boston MA 02111-1307, USA.
+#
+# Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+# Mountain View, CA  94043, or:
+#
+# http://www.sgi.com
+#
+# For further information regarding this notice, see:
+#
+# http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+#
+
+EXTRA_CFLAGS +=  -I. -I linux-2.4 -funsigned-char
+
+ifeq ($(CONFIG_XFS_DEBUG),y)
+	EXTRA_CFLAGS += -g -DSTATIC="" -DDEBUG
+	EXTRA_CFLAGS += -DPAGEBUF_LOCK_TRACKING
+endif
+ifeq ($(CONFIG_XFS_TRACE),y)
+	EXTRA_CFLAGS += -DXFS_ALLOC_TRACE
+	EXTRA_CFLAGS += -DXFS_ATTR_TRACE
+	EXTRA_CFLAGS += -DXFS_BLI_TRACE
+	EXTRA_CFLAGS += -DXFS_BMAP_TRACE
+	EXTRA_CFLAGS += -DXFS_BMBT_TRACE
+	EXTRA_CFLAGS += -DXFS_DIR_TRACE
+	EXTRA_CFLAGS += -DXFS_DQUOT_TRACE
+	EXTRA_CFLAGS += -DXFS_ILOCK_TRACE
+	EXTRA_CFLAGS += -DXFS_LOG_TRACE
+	EXTRA_CFLAGS += -DXFS_RW_TRACE
+	EXTRA_CFLAGS += -DXFS_DIR2_TRACE
+	EXTRA_CFLAGS += -DPAGEBUF_TRACE
+	# EXTRA_CFLAGS += -DXFS_VNODE_TRACE
+endif
+
+O_TARGET			:= xfs.o
+obj-m				:= $(O_TARGET)
+
+obj-$(CONFIG_XFS_RT)		+= xfs_rtalloc.o
+obj-$(CONFIG_XFS_POSIX_ACL)	+= xfs_acl.o
+
+obj-$(CONFIG_XFS_TRACE)		+= xfs_dir2_trace.o
+
+obj-y				+= xfs_alloc.o \
+				   xfs_alloc_btree.o \
+				   xfs_attr.o \
+				   xfs_attr_leaf.o \
+				   xfs_behavior.o \
+				   xfs_bit.o \
+				   xfs_bmap.o \
+				   xfs_bmap_btree.o \
+				   xfs_btree.o \
+				   xfs_buf_item.o \
+				   xfs_da_btree.o \
+				   xfs_dir.o \
+				   xfs_dir2.o \
+				   xfs_dir2_block.o \
+				   xfs_dir2_data.o \
+				   xfs_dir2_leaf.o \
+				   xfs_dir2_node.o \
+				   xfs_dir2_sf.o \
+				   xfs_dir_leaf.o \
+				   xfs_error.o \
+				   xfs_extfree_item.o \
+				   xfs_fsops.o \
+				   xfs_ialloc.o \
+				   xfs_ialloc_btree.o \
+				   xfs_iget.o \
+				   xfs_inode.o \
+				   xfs_inode_item.o \
+				   xfs_iocore.o \
+				   xfs_iomap.o \
+				   xfs_itable.o \
+				   xfs_dfrag.o \
+				   xfs_log.o \
+				   xfs_log_recover.o \
+				   xfs_macros.o \
+				   xfs_mount.o \
+				   xfs_rename.o \
+				   xfs_trans.o \
+				   xfs_trans_ail.o \
+				   xfs_trans_buf.o \
+				   xfs_trans_extfree.o \
+				   xfs_trans_inode.o \
+				   xfs_trans_item.o \
+				   xfs_utils.o \
+				   xfs_vfsops.o \
+				   xfs_vnodeops.o \
+				   xfs_refcache.o \
+				   xfs_rw.o \
+				   xfs_dmops.o \
+				   xfs_qmops.o
+
+# Objects not built in this directory
+obj-y				+= linux-2.4/linux_xfs.o \
+				   support/support_xfs.o
+
+subdir-$(CONFIG_XFS_FS)		+= linux-2.4 support
+
+ifeq ($(CONFIG_XFS_DMAPI),y)
+  subdir-$(CONFIG_XFS_FS)	+= dmapi
+  obj-y				+= dmapi/xfs_dmapi.o
+endif
+
+ifeq ($(CONFIG_XFS_QUOTA),y)
+  subdir-$(CONFIG_XFS_FS)	+= quota
+  obj-y				+= quota/xfs_quota.o
+endif
+
+include $(TOPDIR)/Rules.make
+
+# This is really nasty, but Rules.make was never designed for multi directory
+# modules.  Keith Owens.
+
+xfs.o: $(patsubst %,_modsubdir_%,$(subdir-m))
diff --git a/fs/xfs/linux-2.4/Makefile b/fs/xfs/linux-2.4/Makefile
new file mode 100644
index 00000000000000..05218df092ae0e
--- /dev/null
+++ b/fs/xfs/linux-2.4/Makefile
@@ -0,0 +1,77 @@
+#
+# Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of version 2 of the GNU General Public License as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it would be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#
+# Further, this software is distributed without any warranty that it is
+# free of the rightful claim of any third person regarding infringement
+# or the like.  Any license provided herein, whether implied or
+# otherwise, applies only to this software file.  Patent licenses, if
+# any, provided herein do not apply to combinations of this program with
+# other software, or any other product whatsoever.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write the Free Software Foundation, Inc., 59
+# Temple Place - Suite 330, Boston MA 02111-1307, USA.
+#
+# Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+# Mountain View, CA  94043, or:
+#
+# http://www.sgi.com
+#
+# For further information regarding this notice, see:
+#
+# http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+#
+# Makefile for XFS on Linux.
+
+EXTRA_CFLAGS += -I.. -I. -funsigned-char
+
+ifeq ($(CONFIG_XFS_DEBUG),y)
+	EXTRA_CFLAGS += -g -DSTATIC="" -DDEBUG
+	EXTRA_CFLAGS += -DPAGEBUF_LOCK_TRACKING
+endif
+ifeq ($(CONFIG_XFS_TRACE),y)
+	EXTRA_CFLAGS += -DXFS_ALLOC_TRACE
+	EXTRA_CFLAGS += -DXFS_ATTR_TRACE
+	EXTRA_CFLAGS += -DXFS_BLI_TRACE
+	EXTRA_CFLAGS += -DXFS_BMAP_TRACE
+	EXTRA_CFLAGS += -DXFS_BMBT_TRACE
+	EXTRA_CFLAGS += -DXFS_DIR_TRACE
+	EXTRA_CFLAGS += -DXFS_DQUOT_TRACE
+	EXTRA_CFLAGS += -DXFS_ILOCK_TRACE
+	EXTRA_CFLAGS += -DXFS_LOG_TRACE
+	EXTRA_CFLAGS += -DXFS_RW_TRACE
+	EXTRA_CFLAGS += -DXFS_DIR2_TRACE
+	EXTRA_CFLAGS += -DPAGEBUF_TRACE
+	# EXTRA_CFLAGS += -DXFS_VNODE_TRACE
+endif
+
+O_TARGET			:= linux_xfs.o
+ifneq ($(MAKECMDGOALS),modules_install)
+  obj-m				:= $(O_TARGET)
+endif
+
+obj-$(CONFIG_PROC_FS)		+= xfs_stats.o
+obj-$(CONFIG_SYSCTL)		+= xfs_sysctl.o
+obj-y				+= xfs_aops.o \
+				   xfs_file.o \
+				   xfs_fs_subr.o \
+				   xfs_globals.o \
+				   xfs_ioctl.o \
+				   xfs_iops.o \
+				   xfs_lrw.o \
+				   xfs_super.o \
+				   xfs_vfs.o \
+				   xfs_vnode.o	\
+				   xfs_buf.o \
+				   mrlock.o \
+				   kmem.o
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/xfs/linux-2.4/kmem.c b/fs/xfs/linux-2.4/kmem.c
new file mode 100644
index 00000000000000..04b7429fe53941
--- /dev/null
+++ b/fs/xfs/linux-2.4/kmem.c
@@ -0,0 +1,185 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/vmalloc.h>
+#include <linux/swap.h>
+
+#include "time.h"
+#include "kmem.h"
+
+#define MAX_VMALLOCS	6
+#define MAX_SLAB_SIZE	0x20000
+#define MAX_SHAKE	8
+
+static kmem_shake_func_t	shake_list[MAX_SHAKE];
+static DECLARE_MUTEX(shake_sem);
+
+/*
+ * Old-school memory shaking for vanilla 2.4 kernels (which
+ * have no VM shake callback/registration infrastructure).
+ */
+
+kmem_shaker_t
+kmem_shake_register(kmem_shake_func_t sfunc)
+{
+	int	i;
+
+	down(&shake_sem);
+	for (i = 0; i < MAX_SHAKE; i++) {
+		if (shake_list[i] == NULL) {
+			shake_list[i] = sfunc;
+			break;
+		}
+	}
+	if (i == MAX_SHAKE)
+		BUG();
+	up(&shake_sem);
+
+	return (kmem_shaker_t)sfunc;
+}
+
+void
+kmem_shake_deregister(kmem_shaker_t sfunc)
+{
+	int	i;
+
+	down(&shake_sem);
+	for (i = 0; i < MAX_SHAKE; i++) {
+		if (shake_list[i] == (kmem_shake_func_t)sfunc)
+			break;
+	}
+	if (i == MAX_SHAKE)
+		BUG();
+	for (; i < MAX_SHAKE - 1; i++) {
+		shake_list[i] = shake_list[i+1];
+	}
+	shake_list[i] = NULL;
+	up(&shake_sem);
+}
+
+static __inline__ void kmem_shake(void)
+{
+	int	i;
+
+	down(&shake_sem);
+	for (i = 0; i < MAX_SHAKE && shake_list[i]; i++)
+		(*shake_list[i])(0, 0);
+	up(&shake_sem);
+	delay(10);
+}
+
+void *
+kmem_alloc(size_t size, int flags)
+{
+	int	retries = 0, lflags = kmem_flags_convert(flags);
+	void	*ptr;
+
+	do {
+		if (size < MAX_SLAB_SIZE || retries > MAX_VMALLOCS)
+			ptr = kmalloc(size, lflags);
+		else
+			ptr = __vmalloc(size, lflags, PAGE_KERNEL);
+		if (ptr || (flags & (KM_MAYFAIL|KM_NOSLEEP)))
+			return ptr;
+		kmem_shake();
+		if (!(++retries % 100))
+			printk(KERN_ERR "possible deadlock in %s (mode:0x%x)\n",
+					__FUNCTION__, lflags);
+	} while (1);
+}
+
+void *
+kmem_zalloc(size_t size, int flags)
+{
+	void	*ptr;
+
+	ptr = kmem_alloc(size, flags);
+	if (ptr)
+		memset((char *)ptr, 0, (int)size);
+	return ptr;
+}
+
+void
+kmem_free(void *ptr, size_t size)
+{
+	if (((unsigned long)ptr < VMALLOC_START) ||
+	    ((unsigned long)ptr >= VMALLOC_END)) {
+		kfree(ptr);
+	} else {
+		vfree(ptr);
+	}
+}
+
+void *
+kmem_realloc(void *ptr, size_t newsize, size_t oldsize, int flags)
+{
+	void	*new;
+
+	new = kmem_alloc(newsize, flags);
+	if (ptr) {
+		if (new)
+			memcpy(new, ptr,
+				((oldsize < newsize) ? oldsize : newsize));
+		kmem_free(ptr, oldsize);
+	}
+	return new;
+}
+
+void *
+kmem_zone_alloc(kmem_zone_t *zone, int flags)
+{
+	int	retries = 0, lflags = kmem_flags_convert(flags);
+	void	*ptr;
+
+	do {
+		ptr = kmem_cache_alloc(zone, lflags);
+		if (ptr || (flags & (KM_MAYFAIL|KM_NOSLEEP)))
+			return ptr;
+		kmem_shake();
+		if (!(++retries % 100))
+			printk(KERN_ERR "possible deadlock in %s (mode:0x%x)\n",
+					__FUNCTION__, lflags);
+	} while (1);
+}
+
+void *
+kmem_zone_zalloc(kmem_zone_t *zone, int flags)
+{
+	void	*ptr;
+
+	ptr = kmem_zone_alloc(zone, flags);
+	if (ptr)
+		memset((char *)ptr, 0, kmem_cache_size(zone));
+	return ptr;
+}
diff --git a/fs/xfs/linux-2.4/kmem.h b/fs/xfs/linux-2.4/kmem.h
new file mode 100644
index 00000000000000..13d40ebfb55693
--- /dev/null
+++ b/fs/xfs/linux-2.4/kmem.h
@@ -0,0 +1,152 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_SUPPORT_KMEM_H__
+#define __XFS_SUPPORT_KMEM_H__
+
+#include <linux/slab.h>
+
+/*
+ * memory management routines
+ */
+#define KM_SLEEP	0x0001
+#define KM_NOSLEEP	0x0002
+#define KM_NOFS		0x0004
+#define KM_MAYFAIL	0x0008
+
+#define	kmem_zone	kmem_cache_s
+#define kmem_zone_t	kmem_cache_t
+
+typedef unsigned long xfs_pflags_t;
+
+#define PFLAGS_TEST_NOIO()              (current->flags & PF_NOIO)
+#define PFLAGS_TEST_FSTRANS()           (current->flags & PF_FSTRANS)
+
+#define PFLAGS_SET_NOIO() do {		\
+	current->flags |= PF_NOIO;	\
+} while (0)
+
+#define PFLAGS_CLEAR_NOIO() do {	\
+	current->flags &= ~PF_NOIO;	\
+} while (0)
+
+/* these could be nested, so we save state */
+#define PFLAGS_SET_FSTRANS(STATEP) do {	\
+	*(STATEP) = current->flags;	\
+	current->flags |= PF_FSTRANS;	\
+} while (0)
+
+#define PFLAGS_CLEAR_FSTRANS(STATEP) do { \
+	*(STATEP) = current->flags;	\
+	current->flags &= ~PF_FSTRANS;	\
+} while (0)
+
+/* Restore the PF_FSTRANS state to what was saved in STATEP */
+#define PFLAGS_RESTORE_FSTRANS(STATEP) do {     		\
+	current->flags = ((current->flags & ~PF_FSTRANS) |	\
+			  (*(STATEP) & PF_FSTRANS));		\
+} while (0)
+
+#define PFLAGS_DUP(OSTATEP, NSTATEP) do { \
+	*(NSTATEP) = *(OSTATEP);	\
+} while (0)
+
+static __inline unsigned int kmem_flags_convert(int flags)
+{
+        int lflags;
+        
+#ifdef DEBUG
+	if (unlikely(flags & ~(KM_SLEEP|KM_NOSLEEP|KM_NOFS|KM_MAYFAIL))) {
+		printk(KERN_WARNING
+		    "XFS: memory allocation with wrong flags (%x)\n", flags);
+		BUG();
+	}
+#endif
+
+	if (flags & KM_NOSLEEP) {
+		lflags = GFP_ATOMIC;
+	} else {
+		lflags = GFP_KERNEL;
+
+		/* avoid recusive callbacks to filesystem during transactions */
+		if (PFLAGS_TEST_FSTRANS() || (flags & KM_NOFS))
+			lflags &= ~__GFP_FS;
+	}
+        
+        return lflags;
+}
+
+static __inline kmem_zone_t *
+kmem_zone_init(int size, char *zone_name)
+{
+	return kmem_cache_create(zone_name, size, 0, 0, NULL, NULL);
+}
+
+static __inline void
+kmem_zone_free(kmem_zone_t *zone, void *ptr)
+{
+	kmem_cache_free(zone, ptr);
+}
+
+static __inline void
+kmem_zone_destroy(kmem_zone_t *zone)
+{
+	if (zone && kmem_cache_destroy(zone))
+		BUG();
+}
+
+static __inline int
+kmem_zone_shrink(kmem_zone_t *zone)
+{
+	return kmem_cache_shrink(zone);
+}
+
+extern void	    *kmem_zone_zalloc(kmem_zone_t *, int);
+extern void	    *kmem_zone_alloc(kmem_zone_t *, int);
+
+extern void	    *kmem_alloc(size_t, int);
+extern void	    *kmem_realloc(void *, size_t, size_t, int);
+extern void	    *kmem_zalloc(size_t, int);
+extern void         kmem_free(void *, size_t);
+
+typedef void	    *kmem_shaker_t;
+typedef int	    (*kmem_shake_func_t)(int, unsigned int);
+
+extern kmem_shaker_t	kmem_shake_register(kmem_shake_func_t);
+extern void	    kmem_shake_deregister(kmem_shaker_t);
+
+static __inline int
+kmem_shake_allow(unsigned int gfp_mask)
+{
+	return (gfp_mask & __GFP_WAIT);
+}
+
+#endif /* __XFS_SUPPORT_KMEM_H__ */
diff --git a/fs/xfs/linux-2.4/mrlock.c b/fs/xfs/linux-2.4/mrlock.c
new file mode 100644
index 00000000000000..f6de257f0945f4
--- /dev/null
+++ b/fs/xfs/linux-2.4/mrlock.c
@@ -0,0 +1,274 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include <linux/time.h>
+#include <linux/sched.h>
+#include <asm/system.h>
+#include <linux/interrupt.h>
+#include <asm/current.h>
+
+#include "mrlock.h"
+
+
+#if USE_RW_WAIT_QUEUE_SPINLOCK
+# define wq_write_lock	write_lock
+#else
+# define wq_write_lock	spin_lock
+#endif
+
+/*
+ * We don't seem to need lock_type (only one supported), name, or
+ * sequence. But, XFS will pass it so let's leave them here for now.
+ */
+/* ARGSUSED */
+void
+mrlock_init(mrlock_t *mrp, int lock_type, char *name, long sequence)
+{
+	mrp->mr_count = 0;
+	mrp->mr_reads_waiting = 0;
+	mrp->mr_writes_waiting = 0;
+	init_waitqueue_head(&mrp->mr_readerq);
+	init_waitqueue_head(&mrp->mr_writerq);
+	mrp->mr_lock = SPIN_LOCK_UNLOCKED;
+}
+
+/*
+ * Macros to lock/unlock the mrlock_t.
+ */
+
+#define MRLOCK(m)		spin_lock(&(m)->mr_lock);
+#define MRUNLOCK(m)		spin_unlock(&(m)->mr_lock);
+
+
+/*
+ * lock_wait should never be called in an interrupt thread.
+ *
+ * mrlocks can sleep (i.e. call schedule) and so they can't ever
+ * be called from an interrupt thread.
+ *
+ * threads that wake-up should also never be invoked from interrupt threads.
+ *
+ * But, waitqueue_lock is locked from interrupt threads - and we are
+ * called with interrupts disabled, so it is all OK.
+ */
+
+/* ARGSUSED */
+void
+lock_wait(wait_queue_head_t *q, spinlock_t *lock, int rw)
+{
+	DECLARE_WAITQUEUE( wait, current );
+
+	__set_current_state(TASK_UNINTERRUPTIBLE);
+
+	wq_write_lock(&q->lock);
+	if (rw) {
+		__add_wait_queue_tail(q, &wait);
+	} else {
+		__add_wait_queue(q, &wait);
+	}
+
+	wq_write_unlock(&q->lock);
+	spin_unlock(lock);
+
+	schedule();
+
+	wq_write_lock(&q->lock);
+	__remove_wait_queue(q, &wait);
+	wq_write_unlock(&q->lock);
+
+	spin_lock(lock);
+
+	/* return with lock held */
+}
+
+/* ARGSUSED */
+void
+mrfree(mrlock_t *mrp)
+{
+}
+
+/* ARGSUSED */
+void
+mrlock(mrlock_t *mrp, int type, int flags)
+{
+	if (type == MR_ACCESS)
+		mraccess(mrp);
+	else
+		mrupdate(mrp);
+}
+
+/* ARGSUSED */
+void
+mraccessf(mrlock_t *mrp, int flags)
+{
+	MRLOCK(mrp);
+	if(mrp->mr_writes_waiting > 0) {
+		mrp->mr_reads_waiting++;
+		lock_wait(&mrp->mr_readerq, &mrp->mr_lock, 0);
+		mrp->mr_reads_waiting--;
+	}
+	while (mrp->mr_count < 0) {
+		mrp->mr_reads_waiting++;
+		lock_wait(&mrp->mr_readerq, &mrp->mr_lock, 0);
+		mrp->mr_reads_waiting--;
+	}
+	mrp->mr_count++;
+	MRUNLOCK(mrp);
+}
+
+/* ARGSUSED */
+void
+mrupdatef(mrlock_t *mrp, int flags)
+{
+	MRLOCK(mrp);
+	while(mrp->mr_count) {
+		mrp->mr_writes_waiting++;
+		lock_wait(&mrp->mr_writerq, &mrp->mr_lock, 1);
+		mrp->mr_writes_waiting--;
+	}
+
+	mrp->mr_count = -1; /* writer on it */
+	MRUNLOCK(mrp);
+}
+
+int
+mrtryaccess(mrlock_t *mrp)
+{
+	MRLOCK(mrp);
+	/*
+	 * If anyone is waiting for update access or the lock is held for update
+	 * fail the request.
+	 */
+	if(mrp->mr_writes_waiting > 0 || mrp->mr_count < 0) {
+		MRUNLOCK(mrp);
+		return 0;
+	}
+	mrp->mr_count++;
+	MRUNLOCK(mrp);
+	return 1;
+}
+
+int
+mrtrypromote(mrlock_t *mrp)
+{
+	MRLOCK(mrp);
+
+	if(mrp->mr_count == 1) { /* We are the only thread with the lock */
+		mrp->mr_count = -1; /* writer on it */
+		MRUNLOCK(mrp);
+		return 1;
+	}
+
+	MRUNLOCK(mrp);
+	return 0;
+}
+
+int
+mrtryupdate(mrlock_t *mrp)
+{
+	MRLOCK(mrp);
+
+	if(mrp->mr_count) {
+		MRUNLOCK(mrp);
+		return 0;
+	}
+
+	mrp->mr_count = -1; /* writer on it */
+	MRUNLOCK(mrp);
+	return 1;
+}
+
+static __inline__ void mrwake(mrlock_t *mrp)
+{
+	/*
+	 * First, if the count is now 0, we need to wake-up anyone waiting.
+	 */
+	if (!mrp->mr_count) {
+		if (mrp->mr_writes_waiting) {	/* Wake-up first writer waiting */
+			wake_up(&mrp->mr_writerq);
+		} else if (mrp->mr_reads_waiting) {	/* Wakeup any readers waiting */
+			wake_up(&mrp->mr_readerq);
+		}
+	}
+}
+
+void
+mraccunlock(mrlock_t *mrp)
+{
+	MRLOCK(mrp);
+	mrp->mr_count--;
+	mrwake(mrp);
+	MRUNLOCK(mrp);
+}
+
+void
+mrunlock(mrlock_t *mrp)
+{
+	MRLOCK(mrp);
+	if (mrp->mr_count < 0) {
+		mrp->mr_count = 0;
+	} else {
+		mrp->mr_count--;
+	}
+	mrwake(mrp);
+	MRUNLOCK(mrp);
+}
+
+int
+ismrlocked(mrlock_t *mrp, int type)	/* No need to lock since info can change */
+{
+	if (type == MR_ACCESS)
+		return (mrp->mr_count > 0); /* Read lock */
+	else if (type == MR_UPDATE)
+		return (mrp->mr_count < 0); /* Write lock */
+	else if (type == (MR_UPDATE | MR_ACCESS))
+		return (mrp->mr_count);	/* Any type of lock held */
+	else /* Any waiters */
+		return (mrp->mr_reads_waiting | mrp->mr_writes_waiting);
+}
+
+/*
+ * Demote from update to access. We better be the only thread with the
+ * lock in update mode so it should be easy to set to 1.
+ * Wake-up any readers waiting.
+ */
+
+void
+mrdemote(mrlock_t *mrp)
+{
+	MRLOCK(mrp);
+	mrp->mr_count = 1;
+	if (mrp->mr_reads_waiting) {	/* Wakeup all readers waiting */
+		wake_up(&mrp->mr_readerq);
+	}
+	MRUNLOCK(mrp);
+}
diff --git a/fs/xfs/linux-2.4/mrlock.h b/fs/xfs/linux-2.4/mrlock.h
new file mode 100644
index 00000000000000..b2a7b3ad5efff7
--- /dev/null
+++ b/fs/xfs/linux-2.4/mrlock.h
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_SUPPORT_MRLOCK_H__
+#define __XFS_SUPPORT_MRLOCK_H__
+
+#include <linux/time.h>
+#include <linux/wait.h>
+#include <asm/atomic.h>
+#include <asm/semaphore.h>
+
+/*
+ * Implement mrlocks on Linux that work for XFS.
+ *
+ * These are sleep locks and not spinlocks. If one wants read/write spinlocks,
+ * use read_lock, write_lock, ... see spinlock.h.
+ */
+
+typedef struct mrlock_s {
+	int			mr_count;
+	unsigned short		mr_reads_waiting;
+	unsigned short		mr_writes_waiting;
+	wait_queue_head_t	mr_readerq;
+	wait_queue_head_t	mr_writerq;
+	spinlock_t		mr_lock;
+} mrlock_t;
+
+#define MR_ACCESS	1
+#define MR_UPDATE	2
+
+#define MRLOCK_BARRIER		0x1
+#define MRLOCK_ALLOW_EQUAL_PRI	0x8
+
+/*
+ * mraccessf/mrupdatef take flags to be passed in while sleeping;
+ * only PLTWAIT is currently supported.
+ */
+
+extern void	mraccessf(mrlock_t *, int);
+extern void	mrupdatef(mrlock_t *, int);
+extern void     mrlock(mrlock_t *, int, int);
+extern void     mrunlock(mrlock_t *);
+extern void     mraccunlock(mrlock_t *);
+extern int      mrtryupdate(mrlock_t *);
+extern int      mrtryaccess(mrlock_t *);
+extern int	mrtrypromote(mrlock_t *);
+extern void     mrdemote(mrlock_t *);
+
+extern int	ismrlocked(mrlock_t *, int);
+extern void     mrlock_init(mrlock_t *, int type, char *name, long sequence);
+extern void     mrfree(mrlock_t *);
+
+#define mrinit(mrp, name)	mrlock_init(mrp, MRLOCK_BARRIER, name, -1)
+#define mraccess(mrp)		mraccessf(mrp, 0) /* grab for READ/ACCESS */
+#define mrupdate(mrp)		mrupdatef(mrp, 0) /* grab for WRITE/UPDATE */
+#define mrislocked_access(mrp)	((mrp)->mr_count > 0)
+#define mrislocked_update(mrp)	((mrp)->mr_count < 0)
+
+#endif /* __XFS_SUPPORT_MRLOCK_H__ */
diff --git a/fs/xfs/linux-2.4/mutex.h b/fs/xfs/linux-2.4/mutex.h
new file mode 100644
index 00000000000000..0b296bb944cbee
--- /dev/null
+++ b/fs/xfs/linux-2.4/mutex.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_SUPPORT_MUTEX_H__
+#define __XFS_SUPPORT_MUTEX_H__
+
+#include <linux/spinlock.h>
+#include <asm/semaphore.h>
+
+/*
+ * Map the mutex'es from IRIX to Linux semaphores.
+ *
+ * Destroy just simply initializes to -99 which should block all other
+ * callers.
+ */
+#define MUTEX_DEFAULT		0x0
+typedef struct semaphore	mutex_t;
+
+#define mutex_init(lock, type, name)		sema_init(lock, 1)
+#define mutex_destroy(lock)			sema_init(lock, -99)
+#define mutex_lock(lock, num)			down(lock)
+#define mutex_trylock(lock)			(down_trylock(lock) ? 0 : 1)
+#define mutex_unlock(lock)			up(lock)
+
+#endif /* __XFS_SUPPORT_MUTEX_H__ */
diff --git a/fs/xfs/linux-2.4/sema.h b/fs/xfs/linux-2.4/sema.h
new file mode 100644
index 00000000000000..30b67b4e1cbfb4
--- /dev/null
+++ b/fs/xfs/linux-2.4/sema.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_SUPPORT_SEMA_H__
+#define __XFS_SUPPORT_SEMA_H__
+
+#include <linux/time.h>
+#include <linux/wait.h>
+#include <asm/atomic.h>
+#include <asm/semaphore.h>
+
+/*
+ * sema_t structure just maps to struct semaphore in Linux kernel.
+ */
+
+typedef struct semaphore sema_t;
+
+#define init_sema(sp, val, c, d)	sema_init(sp, val)
+#define initsema(sp, val)		sema_init(sp, val)
+#define initnsema(sp, val, name)	sema_init(sp, val)
+#define psema(sp, b)			down(sp)
+#define vsema(sp)			up(sp)
+#define valusema(sp)			(atomic_read(&(sp)->count))
+#define freesema(sema)
+
+/*
+ * Map cpsema (try to get the sema) to down_trylock. We need to switch
+ * the return values since cpsema returns 1 (acquired) 0 (failed) and
+ * down_trylock returns the reverse 0 (acquired) 1 (failed).
+ */
+
+#define cpsema(sp)			(down_trylock(sp) ? 0 : 1)
+
+/*
+ * Didn't do cvsema(sp). Not sure how to map this to up/down/...
+ * It does a vsema if the values is < 0 other wise nothing.
+ */
+
+#endif /* __XFS_SUPPORT_SEMA_H__ */
diff --git a/fs/xfs/linux-2.4/spin.h b/fs/xfs/linux-2.4/spin.h
new file mode 100644
index 00000000000000..bcf60a0b8df0ee
--- /dev/null
+++ b/fs/xfs/linux-2.4/spin.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_SUPPORT_SPIN_H__
+#define __XFS_SUPPORT_SPIN_H__
+
+#include <linux/sched.h>	/* preempt needs this */
+#include <linux/spinlock.h>
+
+/*
+ * Map lock_t from IRIX to Linux spinlocks.
+ *
+ * We do not make use of lock_t from interrupt context, so we do not
+ * have to worry about disabling interrupts at all (unlike IRIX).
+ */
+
+typedef spinlock_t lock_t;
+
+#define SPLDECL(s)			unsigned long s
+
+#define spinlock_init(lock, name)	spin_lock_init(lock)
+#define	spinlock_destroy(lock)
+#define mutex_spinlock(lock)		({ spin_lock(lock); 0; })
+#define mutex_spinunlock(lock, s)	do { spin_unlock(lock); (void)s; } while (0)
+#define nested_spinlock(lock)		spin_lock(lock)
+#define nested_spinunlock(lock)		spin_unlock(lock)
+
+#endif /* __XFS_SUPPORT_SPIN_H__ */
diff --git a/fs/xfs/linux-2.4/sv.h b/fs/xfs/linux-2.4/sv.h
new file mode 100644
index 00000000000000..821d3167e05b73
--- /dev/null
+++ b/fs/xfs/linux-2.4/sv.h
@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_SUPPORT_SV_H__
+#define __XFS_SUPPORT_SV_H__
+
+#include <linux/wait.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+
+/*
+ * Synchronisation variables.
+ *
+ * (Parameters "pri", "svf" and "rts" are not implemented)
+ */
+
+typedef struct sv_s {
+	wait_queue_head_t waiters;
+} sv_t;
+
+#define SV_FIFO		0x0		/* sv_t is FIFO type */
+#define SV_LIFO		0x2		/* sv_t is LIFO type */
+#define SV_PRIO		0x4		/* sv_t is PRIO type */
+#define SV_KEYED	0x6		/* sv_t is KEYED type */
+#define SV_DEFAULT      SV_FIFO
+
+
+static inline void _sv_wait(sv_t *sv, spinlock_t *lock, int state,
+			     unsigned long timeout)
+{
+	DECLARE_WAITQUEUE(wait, current);
+
+	add_wait_queue_exclusive(&sv->waiters, &wait);
+	__set_current_state(state);
+	spin_unlock(lock);
+
+	schedule_timeout(timeout);
+
+	remove_wait_queue(&sv->waiters, &wait);
+}
+
+#define init_sv(sv,type,name,flag) \
+	init_waitqueue_head(&(sv)->waiters)
+#define sv_init(sv,flag,name) \
+	init_waitqueue_head(&(sv)->waiters)
+#define sv_destroy(sv) \
+	/*NOTHING*/
+#define sv_wait(sv, pri, lock, s) \
+	_sv_wait(sv, lock, TASK_UNINTERRUPTIBLE, MAX_SCHEDULE_TIMEOUT)
+#define sv_wait_sig(sv, pri, lock, s)   \
+	_sv_wait(sv, lock, TASK_INTERRUPTIBLE, MAX_SCHEDULE_TIMEOUT)
+#define sv_timedwait(sv, pri, lock, s, svf, ts, rts) \
+	_sv_wait(sv, lock, TASK_UNINTERRUPTIBLE, timespec_to_jiffies(ts))
+#define sv_timedwait_sig(sv, pri, lock, s, svf, ts, rts) \
+	_sv_wait(sv, lock, TASK_INTERRUPTIBLE, timespec_to_jiffies(ts))
+#define sv_signal(sv) \
+	wake_up(&(sv)->waiters)
+#define sv_broadcast(sv) \
+	wake_up_all(&(sv)->waiters)
+
+#endif /* __XFS_SUPPORT_SV_H__ */
diff --git a/fs/xfs/linux-2.4/time.h b/fs/xfs/linux-2.4/time.h
new file mode 100644
index 00000000000000..63fcb9e4ab15f0
--- /dev/null
+++ b/fs/xfs/linux-2.4/time.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_SUPPORT_TIME_H__
+#define __XFS_SUPPORT_TIME_H__
+
+#include <linux/sched.h>
+#include <linux/time.h>
+
+typedef struct timespec timespec_t;
+
+static inline void delay(long ticks)
+{
+	set_current_state(TASK_UNINTERRUPTIBLE);
+	schedule_timeout(ticks);
+}
+
+static inline void nanotime(struct timespec *tvp)
+{
+	struct timeval tv;
+
+	do_gettimeofday(&tv);
+	tvp->tv_sec = tv.tv_sec;
+	tvp->tv_nsec = tv.tv_usec * 1000;
+}
+
+#endif /* __XFS_SUPPORT_TIME_H__ */
diff --git a/fs/xfs/linux-2.4/xfs_aops.c b/fs/xfs/linux-2.4/xfs_aops.c
new file mode 100644
index 00000000000000..860ccf8e1bedf5
--- /dev/null
+++ b/fs/xfs/linux-2.4/xfs_aops.c
@@ -0,0 +1,1299 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.	 Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_sb.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_trans.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_alloc.h"
+#include "xfs_btree.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_error.h"
+#include "xfs_rw.h"
+#include "xfs_iomap.h"
+#include <linux/iobuf.h>
+
+STATIC void xfs_count_page_state(struct page *, int *, int *, int *);
+STATIC void xfs_convert_page(struct inode *, struct page *,
+				xfs_iomap_t *, void *, int, int);
+
+#if defined(XFS_RW_TRACE)
+void
+xfs_page_trace(
+	int		tag,
+	struct inode	*inode,
+	struct page	*page,
+	int		mask)
+{
+	xfs_inode_t	*ip;
+	bhv_desc_t	*bdp;
+	vnode_t		*vp = LINVFS_GET_VP(inode);
+	loff_t		isize = i_size_read(inode);
+	loff_t		offset = page->index << PAGE_CACHE_SHIFT;
+	int		delalloc = -1, unmapped = -1, unwritten = -1;
+
+	if (page_has_buffers(page))
+		xfs_count_page_state(page, &delalloc, &unmapped, &unwritten);
+
+	bdp = vn_bhv_lookup(VN_BHV_HEAD(vp), &xfs_vnodeops);
+	ip = XFS_BHVTOI(bdp);
+	if (!ip->i_rwtrace)
+		return;
+
+	ktrace_enter(ip->i_rwtrace,
+		(void *)((unsigned long)tag),
+		(void *)ip,
+		(void *)inode,
+		(void *)page,
+		(void *)((unsigned long)mask),
+		(void *)((unsigned long)((ip->i_d.di_size >> 32) & 0xffffffff)),
+		(void *)((unsigned long)(ip->i_d.di_size & 0xffffffff)),
+		(void *)((unsigned long)((isize >> 32) & 0xffffffff)),
+		(void *)((unsigned long)(isize & 0xffffffff)),
+		(void *)((unsigned long)((offset >> 32) & 0xffffffff)),
+		(void *)((unsigned long)(offset & 0xffffffff)),
+		(void *)((unsigned long)delalloc),
+		(void *)((unsigned long)unmapped),
+		(void *)((unsigned long)unwritten),
+		(void *)NULL,
+		(void *)NULL);
+}
+#else
+#define xfs_page_trace(tag, inode, page, mask)
+#endif
+
+void
+linvfs_unwritten_done(
+	struct buffer_head	*bh,
+	int			uptodate)
+{
+	xfs_buf_t		*pb = (xfs_buf_t *)bh->b_private;
+
+	ASSERT(buffer_unwritten(bh));
+	bh->b_end_io = NULL;
+	clear_buffer_unwritten(bh);
+	if (!uptodate)
+		pagebuf_ioerror(pb, EIO);
+	if (atomic_dec_and_test(&pb->pb_io_remaining) == 1) {
+		pagebuf_iodone(pb, 1, 1);
+	}
+	end_buffer_io_async(bh, uptodate);
+}
+
+/*
+ * Issue transactions to convert a buffer range from unwritten
+ * to written extents.
+ */
+STATIC void
+linvfs_unwritten_convert(
+	xfs_buf_t	*bp)
+{
+	vnode_t		*vp = XFS_BUF_FSPRIVATE(bp, vnode_t *);
+	int		error;
+
+	BUG_ON(atomic_read(&bp->pb_hold) < 1);
+	VOP_BMAP(vp, XFS_BUF_OFFSET(bp), XFS_BUF_SIZE(bp),
+			BMAPI_UNWRITTEN, NULL, NULL, error);
+	XFS_BUF_SET_FSPRIVATE(bp, NULL);
+	XFS_BUF_CLR_IODONE_FUNC(bp);
+	XFS_BUF_UNDATAIO(bp);
+	iput(LINVFS_GET_IP(vp));
+	pagebuf_iodone(bp, 0, 0);
+}
+
+STATIC int
+xfs_map_blocks(
+	struct inode		*inode,
+	loff_t			offset,
+	ssize_t			count,
+	xfs_iomap_t		*iomapp,
+	int			flags)
+{
+	vnode_t			*vp = LINVFS_GET_VP(inode);
+	int			error, niomaps = 1;
+
+	VOP_BMAP(vp, offset, count, flags, iomapp, &niomaps, error);
+	if (!error && (flags & (BMAPI_WRITE|BMAPI_ALLOCATE)))
+		VMODIFY(vp);
+	return -error;
+}
+
+/*
+ * Finds the corresponding mapping in block @map array of the
+ * given @offset within a @page.
+ */
+STATIC xfs_iomap_t *
+xfs_offset_to_map(
+	struct page		*page,
+	xfs_iomap_t		*iomapp,
+	unsigned long		offset)
+{
+	loff_t			full_offset;	/* offset from start of file */
+
+	ASSERT(offset < PAGE_CACHE_SIZE);
+
+	full_offset = page->index;		/* NB: using 64bit number */
+	full_offset <<= PAGE_CACHE_SHIFT;	/* offset from file start */
+	full_offset += offset;			/* offset from page start */
+
+	if (full_offset < iomapp->iomap_offset)
+		return NULL;
+	if (iomapp->iomap_offset + (iomapp->iomap_bsize -1) >= full_offset)
+		return iomapp;
+	return NULL;
+}
+
+STATIC void
+xfs_map_at_offset(
+	struct page		*page,
+	struct buffer_head	*bh,
+	unsigned long		offset,
+	int			block_bits,
+	xfs_iomap_t		*iomapp)
+{
+	xfs_daddr_t		bn;
+	loff_t			delta;
+	int			sector_shift;
+
+	ASSERT(!(iomapp->iomap_flags & IOMAP_HOLE));
+	ASSERT(!(iomapp->iomap_flags & IOMAP_DELAY));
+	ASSERT(iomapp->iomap_bn != IOMAP_DADDR_NULL);
+
+	delta = page->index;
+	delta <<= PAGE_CACHE_SHIFT;
+	delta += offset;
+	delta -= iomapp->iomap_offset;
+	delta >>= block_bits;
+
+	sector_shift = block_bits - BBSHIFT;
+	bn = iomapp->iomap_bn >> sector_shift;
+	bn += delta;
+	BUG_ON(!bn && !(iomapp->iomap_flags & IOMAP_REALTIME));
+	ASSERT((bn << sector_shift) >= iomapp->iomap_bn);
+
+	lock_buffer(bh);
+	bh->b_blocknr = bn;
+	bh->b_dev = iomapp->iomap_target->pbr_kdev;
+	set_buffer_mapped(bh);
+	clear_buffer_delay(bh);
+}
+
+/*
+ * Look for a page at index which is unlocked and contains our
+ * unwritten extent flagged buffers at its head.  Returns page
+ * locked and with an extra reference count, and length of the
+ * unwritten extent component on this page that we can write,
+ * in units of filesystem blocks.
+ */
+STATIC struct page *
+xfs_probe_unwritten_page(
+	struct address_space	*mapping,
+	pgoff_t			index,
+	xfs_iomap_t		*iomapp,
+	xfs_buf_t		*pb,
+	unsigned long		max_offset,
+	unsigned long		*fsbs,
+	unsigned int            bbits)
+{
+	struct page		*page;
+
+	page = find_trylock_page(mapping, index);
+	if (!page)
+		return 0;
+
+	if (page->mapping && page_has_buffers(page)) {
+		struct buffer_head	*bh, *head;
+		unsigned long		p_offset = 0;
+
+		*fsbs = 0;
+		bh = head = page_buffers(page);
+		do {
+			if (!buffer_unwritten(bh) || !buffer_uptodate(bh))
+				break;
+			if (!xfs_offset_to_map(page, iomapp, p_offset))
+				break;
+			if (p_offset >= max_offset)
+				break;
+			xfs_map_at_offset(page, bh, p_offset, bbits, iomapp);
+			set_buffer_unwritten_io(bh);
+			bh->b_private = pb;
+			p_offset += bh->b_size;
+			(*fsbs)++;
+		} while ((bh = bh->b_this_page) != head);
+
+		if (p_offset)
+			return page;
+	}
+
+	unlock_page(page);
+	return NULL;
+}
+
+/*
+ * Look for a page at index which is unlocked and not mapped
+ * yet - clustering for mmap write case.
+ */
+STATIC unsigned int
+xfs_probe_unmapped_page(
+	struct address_space	*mapping,
+	pgoff_t			index,
+	unsigned int		pg_offset)
+{
+	struct page		*page;
+	int			ret = 0;
+
+	page = find_trylock_page(mapping, index);
+	if (!page)
+		return 0;
+
+	if (page->mapping && PageDirty(page)) {
+		if (page_has_buffers(page)) {
+			struct buffer_head	*bh, *head;
+
+			bh = head = page_buffers(page);
+			do {
+				if (buffer_mapped(bh) || !buffer_uptodate(bh))
+					break;
+				ret += bh->b_size;
+				if (ret >= pg_offset)
+					break;
+			} while ((bh = bh->b_this_page) != head);
+		} else
+			ret = PAGE_CACHE_SIZE;
+	}
+
+	unlock_page(page);
+	return ret;
+}
+
+STATIC unsigned int
+xfs_probe_unmapped_cluster(
+	struct inode		*inode,
+	struct page		*startpage,
+	struct buffer_head	*bh,
+	struct buffer_head	*head)
+{
+	pgoff_t			tindex, tlast, tloff;
+	unsigned int		pg_offset, len, total = 0;
+	struct address_space	*mapping = inode->i_mapping;
+
+	/* First sum forwards in this page */
+	do {
+		if (buffer_mapped(bh))
+			break;
+		total += bh->b_size;
+	} while ((bh = bh->b_this_page) != head);
+
+	/* If we reached the end of the page, sum forwards in
+	 * following pages.
+	 */
+	if (bh == head) {
+		tlast = i_size_read(inode) >> PAGE_CACHE_SHIFT;
+		/* Prune this back to avoid pathological behavior */
+		tloff = min(tlast, startpage->index + 64);
+		for (tindex = startpage->index + 1; tindex < tloff; tindex++) {
+			len = xfs_probe_unmapped_page(mapping, tindex,
+							PAGE_CACHE_SIZE);
+			if (!len)
+				return total;
+			total += len;
+		}
+		if (tindex == tlast &&
+		    (pg_offset = i_size_read(inode) & (PAGE_CACHE_SIZE - 1))) {
+			total += xfs_probe_unmapped_page(mapping,
+							tindex, pg_offset);
+		}
+	}
+	return total;
+}
+
+/*
+ * Probe for a given page (index) in the inode and test if it is delayed
+ * and without unwritten buffers.  Returns page locked and with an extra
+ * reference count.
+ */
+STATIC struct page *
+xfs_probe_delalloc_page(
+	struct inode		*inode,
+	pgoff_t			index)
+{
+	struct page		*page;
+
+	page = find_trylock_page(inode->i_mapping, index);
+	if (!page)
+		return NULL;
+
+	if (page->mapping && page_has_buffers(page)) {
+		struct buffer_head	*bh, *head;
+		int			acceptable = 0;
+
+		bh = head = page_buffers(page);
+		do {
+			if (buffer_unwritten(bh)) {
+				acceptable = 0;
+				break;
+			} else if (buffer_delay(bh)) {
+				acceptable = 1;
+			}
+		} while ((bh = bh->b_this_page) != head);
+
+		if (acceptable)
+			return page;
+	}
+
+	unlock_page(page);
+	return NULL;
+}
+
+STATIC int
+xfs_map_unwritten(
+	struct inode		*inode,
+	struct page		*start_page,
+	struct buffer_head	*head,
+	struct buffer_head	*curr,
+	unsigned long		p_offset,
+	int			block_bits,
+	xfs_iomap_t		*iomapp,
+	int			startio,
+	int			all_bh)
+{
+	struct buffer_head	*bh = curr;
+	xfs_iomap_t		*tmp;
+	xfs_buf_t		*pb;
+	loff_t			offset, size;
+	unsigned long		nblocks = 0;
+
+	offset = start_page->index;
+	offset <<= PAGE_CACHE_SHIFT;
+	offset += p_offset;
+
+	/* get an "empty" pagebuf to manage IO completion
+	 * Proper values will be set before returning */
+	pb = pagebuf_lookup(iomapp->iomap_target, 0, 0, 0);
+	if (!pb)
+		return -EAGAIN;
+
+	/* Take a reference to the inode to prevent it from
+	 * being reclaimed while we have outstanding unwritten
+	 * extent IO on it.
+	 */
+	if ((igrab(inode)) != inode) {
+		pagebuf_free(pb);
+		return -EAGAIN;
+	}
+
+	/* Set the count to 1 initially, this will stop an I/O
+	 * completion callout which happens before we have started
+	 * all the I/O from calling pagebuf_iodone too early.
+	 */
+	atomic_set(&pb->pb_io_remaining, 1);
+
+	/* First map forwards in the page consecutive buffers
+	 * covering this unwritten extent
+	 */
+	do {
+		if (!buffer_unwritten(bh))
+			break;
+		tmp = xfs_offset_to_map(start_page, iomapp, p_offset);
+		if (!tmp)
+			break;
+		xfs_map_at_offset(start_page, bh, p_offset, block_bits, iomapp);
+		set_buffer_unwritten_io(bh);
+		bh->b_private = pb;
+		p_offset += bh->b_size;
+		nblocks++;
+	} while ((bh = bh->b_this_page) != head);
+
+	atomic_add(nblocks, &pb->pb_io_remaining);
+
+	/* If we reached the end of the page, map forwards in any
+	 * following pages which are also covered by this extent.
+	 */
+	if (bh == head) {
+		struct address_space	*mapping = inode->i_mapping;
+		pgoff_t			tindex, tloff, tlast;
+		unsigned long		bs;
+		unsigned int		pg_offset, bbits = inode->i_blkbits;
+		struct page		*page;
+
+		tlast = i_size_read(inode) >> PAGE_CACHE_SHIFT;
+		tloff = (iomapp->iomap_offset + iomapp->iomap_bsize) >> PAGE_CACHE_SHIFT;
+		tloff = min(tlast, tloff);
+		for (tindex = start_page->index + 1; tindex < tloff; tindex++) {
+			page = xfs_probe_unwritten_page(mapping,
+						tindex, iomapp, pb,
+						PAGE_CACHE_SIZE, &bs, bbits);
+			if (!page)
+				break;
+			nblocks += bs;
+			atomic_add(bs, &pb->pb_io_remaining);
+			xfs_convert_page(inode, page, iomapp, pb,
+							startio, all_bh);
+			/* stop if converting the next page might add
+			 * enough blocks that the corresponding byte
+			 * count won't fit in our ulong page buf length */
+			if (nblocks >= ((ULONG_MAX - PAGE_SIZE) >> block_bits))
+				goto enough;
+		}
+
+		if (tindex == tlast &&
+		    (pg_offset = (i_size_read(inode) & (PAGE_CACHE_SIZE - 1)))) {
+			page = xfs_probe_unwritten_page(mapping,
+							tindex, iomapp, pb,
+							pg_offset, &bs, bbits);
+			if (page) {
+				nblocks += bs;
+				atomic_add(bs, &pb->pb_io_remaining);
+				xfs_convert_page(inode, page, iomapp, pb,
+							startio, all_bh);
+				if (nblocks >= ((ULONG_MAX - PAGE_SIZE) >> block_bits))
+					goto enough;
+			}
+		}
+	}
+
+enough:
+	size = nblocks;		/* NB: using 64bit number here */
+	size <<= block_bits;	/* convert fsb's to byte range */
+
+	XFS_BUF_DATAIO(pb);
+	XFS_BUF_ASYNC(pb);
+	XFS_BUF_SET_SIZE(pb, size);
+	XFS_BUF_SET_COUNT(pb, size);
+	XFS_BUF_SET_OFFSET(pb, offset);
+	XFS_BUF_SET_FSPRIVATE(pb, LINVFS_GET_VP(inode));
+	XFS_BUF_SET_IODONE_FUNC(pb, linvfs_unwritten_convert);
+
+	if (atomic_dec_and_test(&pb->pb_io_remaining) == 1) {
+		pagebuf_iodone(pb, 1, 1);
+	}
+
+	return 0;
+}
+
+STATIC void
+xfs_submit_page(
+	struct page		*page,
+	struct buffer_head	*bh_arr[],
+	int			bh_count)
+{
+	struct buffer_head	*bh;
+	int			i;
+
+	if (bh_count) {
+		for (i = 0; i < bh_count; i++) {
+			bh = bh_arr[i];
+			set_buffer_async_io(bh);
+			if (buffer_unwritten(bh))
+				set_buffer_unwritten_io(bh);
+			set_buffer_uptodate(bh);
+			clear_buffer_dirty(bh);
+		}
+
+		for (i = 0; i < bh_count; i++) {
+			refile_buffer(bh_arr[i]);
+			submit_bh(WRITE, bh_arr[i]);
+		}
+	} else {
+		unlock_page(page);
+	}
+}
+
+/*
+ * Allocate & map buffers for page given the extent map. Write it out.
+ * except for the original page of a writepage, this is called on
+ * delalloc/unwritten pages only, for the original page it is possible
+ * that the page has no mapping at all.
+ */
+STATIC void
+xfs_convert_page(
+	struct inode		*inode,
+	struct page		*page,
+	xfs_iomap_t		*iomapp,
+	void			*private,
+	int			startio,
+	int			all_bh)
+{
+	struct buffer_head	*bh_arr[MAX_BUF_PER_PAGE], *bh, *head;
+	xfs_iomap_t		*mp = iomapp, *tmp;
+	unsigned long		end, offset;
+	pgoff_t			end_index;
+	int			i = 0, index = 0;
+	int			bbits = inode->i_blkbits;
+
+	end_index = i_size_read(inode) >> PAGE_CACHE_SHIFT;
+	if (page->index < end_index) {
+		end = PAGE_CACHE_SIZE;
+	} else {
+		end = i_size_read(inode) & (PAGE_CACHE_SIZE-1);
+	}
+	bh = head = page_buffers(page);
+	do {
+		offset = i << bbits;
+		if (offset >= end)
+			break;
+		if (!(PageUptodate(page) || buffer_uptodate(bh)))
+			continue;
+		if (buffer_mapped(bh) && all_bh &&
+		    !buffer_unwritten(bh) && !buffer_delay(bh)) {
+			if (startio) {
+				lock_buffer(bh);
+				bh_arr[index++] = bh;
+			}
+			continue;
+		}
+		tmp = xfs_offset_to_map(page, mp, offset);
+		if (!tmp)
+			continue;
+		ASSERT(!(tmp->iomap_flags & IOMAP_HOLE));
+		ASSERT(!(tmp->iomap_flags & IOMAP_DELAY));
+
+		/* If this is a new unwritten extent buffer (i.e. one
+		 * that we haven't passed in private data for, we must
+		 * now map this buffer too.
+		 */
+		if (buffer_unwritten(bh) && !bh->b_end_io) {
+			ASSERT(tmp->iomap_flags & IOMAP_UNWRITTEN);
+			xfs_map_unwritten(inode, page, head, bh,
+					offset, bbits, tmp, startio, all_bh);
+		} else if (! (buffer_unwritten(bh) && buffer_locked(bh))) {
+			xfs_map_at_offset(page, bh, offset, bbits, tmp);
+			if (buffer_unwritten(bh)) {
+				set_buffer_unwritten_io(bh);
+				bh->b_private = private;
+				ASSERT(private);
+			}
+		}
+		if (startio) {
+			bh_arr[index++] = bh;
+		} else {
+			unlock_buffer(bh);
+			mark_buffer_dirty(bh);
+		}
+	} while (i++, (bh = bh->b_this_page) != head);
+
+	if (startio) {
+		xfs_submit_page(page, bh_arr, index);
+	} else {
+		unlock_page(page);
+	}
+}
+
+/*
+ * Convert & write out a cluster of pages in the same extent as defined
+ * by mp and following the start page.
+ */
+STATIC void
+xfs_cluster_write(
+	struct inode		*inode,
+	pgoff_t			tindex,
+	xfs_iomap_t		*iomapp,
+	int			startio,
+	int			all_bh,
+	pgoff_t			tlast)
+{
+	struct page		*page;
+
+	for (; tindex <= tlast; tindex++) {
+		page = xfs_probe_delalloc_page(inode, tindex);
+		if (!page)
+			break;
+		xfs_convert_page(inode, page, iomapp, NULL, startio, all_bh);
+	}
+}
+
+/*
+ * Calling this without startio set means we are being asked to make a dirty
+ * page ready for freeing it's buffers.  When called with startio set then
+ * we are coming from writepage.
+ *
+ * When called with startio set it is important that we write the WHOLE
+ * page if possible.
+ * The bh->b_state's cannot know if any of the blocks or which block for
+ * that matter are dirty due to mmap writes, and therefore bh uptodate is
+ * only vaild if the page itself isn't completely uptodate.  Some layers
+ * may clear the page dirty flag prior to calling write page, under the
+ * assumption the entire page will be written out; by not writing out the
+ * whole page the page can be reused before all valid dirty data is
+ * written out.  Note: in the case of a page that has been dirty'd by
+ * mapwrite and but partially setup by block_prepare_write the
+ * bh->b_states's will not agree and only ones setup by BPW/BCW will have
+ * valid state, thus the whole page must be written out thing.
+ */
+
+STATIC int
+xfs_page_state_convert(
+	struct inode	*inode,
+	struct page	*page,
+	int		startio,
+	int		unmapped) /* also implies page uptodate */
+{
+	struct buffer_head	*bh_arr[MAX_BUF_PER_PAGE], *bh, *head;
+	xfs_iomap_t		*iomp, iomap;
+	loff_t			offset;
+	unsigned long           p_offset = 0;
+	__uint64_t              end_offset;
+	pgoff_t                 end_index, last_index, tlast;
+	int			len, err, i, cnt = 0, uptodate = 1;
+	int			flags = startio ? 0 : BMAPI_TRYLOCK;
+	int			page_dirty = 1;
+	int                     delalloc = 0;
+
+
+	/* Are we off the end of the file ? */
+	offset = i_size_read(inode);
+	end_index = offset >> PAGE_CACHE_SHIFT;
+	last_index = (offset - 1) >> PAGE_CACHE_SHIFT;
+	if (page->index >= end_index) {
+		if ((page->index >= end_index + 1) ||
+		    !(i_size_read(inode) & (PAGE_CACHE_SIZE - 1))) {
+			err = -EIO;
+			goto error;
+		}
+	}
+
+	offset = (loff_t)page->index << PAGE_CACHE_SHIFT;
+	end_offset = min_t(unsigned long long,
+			offset + PAGE_CACHE_SIZE, i_size_read(inode));
+
+	bh = head = page_buffers(page);
+	iomp = NULL;
+
+	len = bh->b_size;
+	do {
+		if (offset >= end_offset)
+			break;
+		if (!buffer_uptodate(bh))
+			uptodate = 0;
+		if (!(PageUptodate(page) || buffer_uptodate(bh)) && !startio)
+			continue;
+
+		if (iomp) {
+			iomp = xfs_offset_to_map(page, &iomap, p_offset);
+		}
+
+		/*
+		 * First case, map an unwritten extent and prepare for
+		 * extent state conversion transaction on completion.
+		 */
+		if (buffer_unwritten(bh)) {
+			if (!startio)
+				continue;
+			if (!iomp) {
+				err = xfs_map_blocks(inode, offset, len, &iomap,
+						BMAPI_READ|BMAPI_IGNSTATE);
+				if (err) {
+					goto error;
+				}
+				iomp = xfs_offset_to_map(page, &iomap,
+								p_offset);
+			}
+			if (iomp) {
+				if (!bh->b_end_io) {
+					err = xfs_map_unwritten(inode, page,
+							head, bh, p_offset,
+							inode->i_blkbits, iomp,
+							startio, unmapped);
+					if (err) {
+						goto error;
+					}
+				} else {
+					set_bit(BH_Lock, &bh->b_state);
+				}
+				BUG_ON(!buffer_locked(bh));
+				bh_arr[cnt++] = bh;
+				page_dirty = 0;
+			}
+		/*
+		 * Second case, allocate space for a delalloc buffer.
+		 * We can return EAGAIN here in the release page case.
+		 */
+		} else if (buffer_delay(bh)) {
+			if (!iomp) {
+				delalloc = 1;
+				err = xfs_map_blocks(inode, offset, len, &iomap,
+						BMAPI_ALLOCATE | flags);
+				if (err) {
+					goto error;
+				}
+				iomp = xfs_offset_to_map(page, &iomap,
+								p_offset);
+			}
+			if (iomp) {
+				xfs_map_at_offset(page, bh, p_offset,
+						inode->i_blkbits, iomp);
+				if (startio) {
+					bh_arr[cnt++] = bh;
+				} else {
+					unlock_buffer(bh);
+					mark_buffer_dirty(bh);
+				}
+				page_dirty = 0;
+			}
+		} else if ((buffer_uptodate(bh) || PageUptodate(page)) &&
+			   (unmapped || startio)) {
+
+			if (!buffer_mapped(bh)) {
+				int	size;
+
+				/*
+				 * Getting here implies an unmapped buffer
+				 * was found, and we are in a path where we
+				 * need to write the whole page out.
+				 */
+				if (!iomp) {
+					size = xfs_probe_unmapped_cluster(
+							inode, page, bh, head);
+					err = xfs_map_blocks(inode, offset,
+							size, &iomap,
+							BMAPI_WRITE|BMAPI_MMAP);
+					if (err) {
+						goto error;
+					}
+					iomp = xfs_offset_to_map(page, &iomap,
+								     p_offset);
+				}
+				if (iomp) {
+					xfs_map_at_offset(page,
+							bh, p_offset,
+							inode->i_blkbits, iomp);
+					if (startio) {
+						bh_arr[cnt++] = bh;
+					} else {
+						unlock_buffer(bh);
+						mark_buffer_dirty(bh);
+					}
+					page_dirty = 0;
+				}
+			} else if (startio) {
+				if (buffer_uptodate(bh) &&
+				    !test_and_set_bit(BH_Lock, &bh->b_state)) {
+					bh_arr[cnt++] = bh;
+					page_dirty = 0;
+				}
+			}
+		}
+	} while (offset += len, p_offset += len,
+		((bh = bh->b_this_page) != head));
+
+	if (uptodate && bh == head)
+		SetPageUptodate(page);
+
+	if (startio)
+		xfs_submit_page(page, bh_arr, cnt);
+
+	if (iomp) {
+		tlast = (iomp->iomap_offset + iomp->iomap_bsize - 1) >>
+					PAGE_CACHE_SHIFT;
+		if (delalloc && (tlast > last_index))
+			tlast = last_index;
+		xfs_cluster_write(inode, page->index + 1, iomp,
+					startio, unmapped, tlast);
+	}
+
+	return page_dirty;
+
+error:
+	for (i = 0; i < cnt; i++) {
+		unlock_buffer(bh_arr[i]);
+	}
+
+	/*
+	 * If it's delalloc and we have nowhere to put it,
+	 * throw it away, unless the lower layers told
+	 * us to try again.
+	 */
+	if (err != -EAGAIN) {
+		if (!unmapped) {
+			block_flushpage(page, 0);
+		}
+		ClearPageUptodate(page);
+	}
+	return err;
+}
+
+STATIC int
+linvfs_get_block_core(
+	struct inode		*inode,
+	long			iblock,
+	struct buffer_head	*bh_result,
+	int			create,
+	int			direct,
+	bmapi_flags_t		flags)
+{
+	vnode_t			*vp = LINVFS_GET_VP(inode);
+	xfs_iomap_t		iomap;
+	int			retpbbm = 1;
+	int			error;
+	ssize_t			size;
+	loff_t			offset = (loff_t)iblock << inode->i_blkbits;
+
+	size = 1 << inode->i_blkbits;
+	VOP_BMAP(vp, offset, size,
+		create ? flags : BMAPI_READ, &iomap, &retpbbm, error);
+	if (error)
+		return -error;
+
+	if (retpbbm == 0)
+		return 0;
+
+	if (iomap.iomap_bn != IOMAP_DADDR_NULL) {
+		xfs_daddr_t		bn;
+		loff_t			delta;
+
+		/* For unwritten extents do not report a disk address on
+		 * the read case (treat as if we're reading into a hole).
+		 */
+		if (create || !(iomap.iomap_flags & IOMAP_UNWRITTEN)) {
+			delta = offset - iomap.iomap_offset;
+			delta >>= inode->i_blkbits;
+
+			bn = iomap.iomap_bn >> (inode->i_blkbits - BBSHIFT);
+			bn += delta;
+			BUG_ON(!bn && !(iomap.iomap_flags & IOMAP_REALTIME));
+			bh_result->b_blocknr = bn;
+			set_buffer_mapped(bh_result);
+		}
+		if (create && (iomap.iomap_flags & IOMAP_UNWRITTEN)) {
+			set_buffer_unwritten(bh_result);
+			set_buffer_delay(bh_result);
+		}
+	}
+
+	/* If this is a realtime file, data might be on a new device */
+	bh_result->b_dev = iomap.iomap_target->pbr_kdev;
+
+	/* If we previously allocated a block out beyond eof and
+	 * we are now coming back to use it then we will need to
+	 * flag it as new even if it has a disk address.
+	 */
+	if (create &&
+	    ((!buffer_mapped(bh_result) && !buffer_uptodate(bh_result)) ||
+	     (offset >= i_size_read(inode)))) {
+		set_buffer_new(bh_result);
+	}
+
+	if (iomap.iomap_flags & IOMAP_DELAY) {
+		BUG_ON(direct);
+		if (create) {
+			set_buffer_mapped(bh_result);
+			set_buffer_uptodate(bh_result);
+		}
+		set_buffer_delay(bh_result);
+	}
+
+	return 0;
+}
+
+int
+linvfs_get_block(
+	struct inode		*inode,
+	long			iblock,
+	struct buffer_head	*bh_result,
+	int			create)
+{
+	return linvfs_get_block_core(inode, iblock, bh_result,
+					create, 0, BMAPI_WRITE);
+}
+
+STATIC int
+linvfs_get_block_direct(
+	struct inode		*inode,
+	long			iblock,
+	struct buffer_head	*bh_result,
+	int			create)
+{
+	return linvfs_get_block_core(inode, iblock, bh_result,
+					create, 1, BMAPI_WRITE|BMAPI_DIRECT);
+}
+
+STATIC int
+linvfs_bmap(
+	struct address_space	*mapping,
+	long			block)
+{
+	struct inode		*inode = (struct inode *)mapping->host;
+	vnode_t			*vp = LINVFS_GET_VP(inode);
+	int			error;
+
+	vn_trace_entry(vp, "linvfs_bmap", (inst_t *)__return_address);
+
+	VOP_RWLOCK(vp, VRWLOCK_READ);
+	VOP_FLUSH_PAGES(vp, (xfs_off_t)0, -1, 0, FI_REMAPF, error);
+	VOP_RWUNLOCK(vp, VRWLOCK_READ);
+	return generic_block_bmap(mapping, block, linvfs_get_block_direct);
+}
+
+STATIC int
+linvfs_readpage(
+	struct file		*unused,
+	struct page		*page)
+{
+	return block_read_full_page(page, linvfs_get_block);
+}
+
+STATIC void
+xfs_count_page_state(
+	struct page		*page,
+	int			*delalloc,
+	int			*unmapped,
+	int			*unwritten)
+{
+	struct buffer_head	*bh, *head;
+
+	*delalloc = *unmapped = *unwritten = 0;
+
+	bh = head = page_buffers(page);
+	do {
+		if (buffer_uptodate(bh) && !buffer_mapped(bh))
+			(*unmapped) = 1;
+		else if (buffer_unwritten(bh) && !buffer_delay(bh))
+			clear_buffer_unwritten(bh);
+		else if (buffer_unwritten(bh))
+			(*unwritten) = 1;
+		else if (buffer_delay(bh))
+			(*delalloc) = 1;
+	} while ((bh = bh->b_this_page) != head);
+}
+
+
+/*
+ * writepage: Called from one of two places:
+ *
+ * 1. we are flushing a delalloc buffer head.
+ *
+ * 2. we are writing out a dirty page. Typically the page dirty
+ *    state is cleared before we get here. In this case is it
+ *    conceivable we have no buffer heads.
+ *
+ * For delalloc space on the page we need to allocate space and
+ * flush it. For unmapped buffer heads on the page we should
+ * allocate space if the page is uptodate. For any other dirty
+ * buffer heads on the page we should flush them.
+ *
+ * If we detect that a transaction would be required to flush
+ * the page, we have to check the process flags first, if we
+ * are already in a transaction or disk I/O during allocations
+ * is off, we need to fail the writepage and redirty the page.
+ */
+
+STATIC int
+linvfs_writepage(
+	struct page		*page)
+{
+	int			error;
+	int			need_trans;
+	int			delalloc, unmapped, unwritten;
+	struct inode		*inode = page->mapping->host;
+
+	xfs_page_trace(XFS_WRITEPAGE_ENTER, inode, page, 0);
+
+	/*
+	 * We need a transaction if:
+	 *  1. There are delalloc buffers on the page
+	 *  2. The page is uptodate and we have unmapped buffers
+	 *  3. The page is uptodate and we have no buffers
+	 *  4. There are unwritten buffers on the page
+	 */
+
+	if (!page_has_buffers(page)) {
+		unmapped = 1;
+		need_trans = 1;
+	} else {
+		xfs_count_page_state(page, &delalloc, &unmapped, &unwritten);
+		if (!PageUptodate(page))
+			unmapped = 0;
+		need_trans = delalloc + unmapped + unwritten;
+	}
+
+	/*
+	 * If we need a transaction and the process flags say
+	 * we are already in a transaction, or no IO is allowed
+	 * then mark the page dirty again and leave the page
+	 * as is.
+	 */
+
+	if ((PFLAGS_TEST_FSTRANS() || PFLAGS_TEST_NOIO()) && need_trans)
+		goto out_fail;
+
+	/*
+	 * Delay hooking up buffer heads until we have
+	 * made our go/no-go decision.
+	 */
+	if (!page_has_buffers(page))
+		create_empty_buffers(page, inode->i_dev, 1 << inode->i_blkbits);
+
+	/*
+	 * Convert delayed allocate, unwritten or unmapped space
+	 * to real space and flush out to disk.
+	 */
+	if (need_trans)
+		PFLAGS_SET_NOIO();
+	error = xfs_page_state_convert(inode, page, 1, unmapped);
+	if (need_trans)
+		PFLAGS_CLEAR_NOIO();
+	if (error == -EAGAIN)
+		goto out_fail;
+
+	if (unlikely(error < 0)) {
+		unlock_page(page);
+		return error;
+	}
+
+	return 0;
+
+out_fail:
+	SetPageDirty(page);
+	unlock_page(page);
+	return 0;
+}
+
+/*
+ * Called to move a page into cleanable state - and from there
+ * to be released. Possibly the page is already clean. We always
+ * have buffer heads in this call.
+ *
+ * Returns 0 if the page is ok to release, 1 otherwise.
+ *
+ * Possible scenarios are:
+ *
+ * 1. We are being called to release a page which has been written
+ *    to via regular I/O. buffer heads will be dirty and possibly
+ *    delalloc. If no delalloc buffer heads in this case then we
+ *    can just return zero.
+ *
+ * 2. We are called to release a page which has been written via
+ *    mmap, all we need to do is ensure there is no delalloc
+ *    state in the buffer heads, if not we can let the caller
+ *    free them and we should come back later via writepage.
+ */
+STATIC int
+linvfs_release_page(
+	struct page		*page,
+	int			gfp_mask)
+{
+	struct inode		*inode = page->mapping->host;
+	int			dirty, delalloc, unmapped, unwritten;
+
+	xfs_page_trace(XFS_RELEASEPAGE_ENTER, inode, page, gfp_mask);
+
+	xfs_count_page_state(page, &delalloc, &unmapped, &unwritten);
+	if (!delalloc && !unwritten)
+		return 1;
+
+	if (!(gfp_mask & __GFP_FS))
+		return 0;
+
+	/* If we are already inside a transaction or the thread cannot
+	 * do I/O, we cannot release this page.
+	 */
+	if (PFLAGS_TEST_FSTRANS() || PFLAGS_TEST_NOIO())
+		return 0;
+
+	/*
+	 * Convert delalloc space to real space, do not flush the
+	 * data out to disk, that will be done by the caller.
+	 * Never need to allocate space here - we will always
+	 * come back to writepage in that case.
+	 */
+	dirty = xfs_page_state_convert(inode, page, 0, 0);
+	return (dirty == 0 && !unwritten) ? 1 : 0;
+}
+
+STATIC int
+linvfs_prepare_write(
+	struct file		*file,
+	struct page		*page,
+	unsigned int		from,
+	unsigned int		to)
+{
+	return block_prepare_write(page, from, to, linvfs_get_block);
+}
+
+/*
+ * Initiate I/O on a kiobuf of user memory
+ */
+STATIC int
+linvfs_direct_IO(
+	int			rw,
+	struct inode		*inode,
+	struct kiobuf		*iobuf,
+	unsigned long		blocknr,
+	int			blocksize)
+{
+	struct page		**maplist;
+	size_t			page_offset;
+	xfs_buf_t		*pb;
+	xfs_iomap_t		iomap;
+	int			niomap, error = 0;
+	int			pb_flags, map_flags, pg_index = 0;
+	size_t			length, total;
+	loff_t			offset, map_size;
+	size_t			size;
+	vnode_t			*vp = LINVFS_GET_VP(inode);
+
+	/* Note - although the iomap could have a 64-bit size,
+	 * kiobuf->length is only an int, so the min(map_size, length)
+	 * test will keep us from overflowing the pagebuf size_t size.
+	 */
+	total = length = iobuf->length;
+	offset = blocknr;
+	offset <<= inode->i_blkbits;
+
+	maplist = iobuf->maplist;
+	page_offset = iobuf->offset;
+
+	map_flags = (rw ? BMAPI_WRITE : BMAPI_READ) | BMAPI_DIRECT;
+	pb_flags = (rw ? PBF_WRITE : PBF_READ) | PBF_FORCEIO | PBF_DIRECTIO;
+	while (length) {
+		niomap = 1;
+		VOP_BMAP(vp, offset, length, map_flags, &iomap, &niomap, error);
+		if (unlikely(!error && niomap &&
+				(iomap.iomap_flags & IOMAP_DELAY))) {
+#ifdef DEBUG
+			printk(
+	"XFS: %s - direct IO (%lld:%ld) into a delayed allocate extent?\n",
+				__FUNCTION__, (long long)offset, (long)length);
+			xfs_stack_trace();
+#endif
+			VOP_BMAP(vp, offset, length, BMAPI_ALLOCATE,
+					&iomap, &niomap, error);
+		}
+		if (error)
+			break;
+
+		if (rw == WRITE)
+			VMODIFY(vp);
+
+		BUG_ON(niomap != 1);
+		BUG_ON(iomap.iomap_flags & IOMAP_DELAY);
+
+		map_size = iomap.iomap_bsize - iomap.iomap_delta;
+		size = (size_t)min(map_size, (loff_t)length);
+
+		if ((iomap.iomap_flags & IOMAP_HOLE) ||
+		    ((iomap.iomap_flags & IOMAP_UNWRITTEN) && rw == READ)) {
+			size_t	zero_len = size;
+
+			if (rw == WRITE)
+				break;
+
+			/* Need to zero it all */
+			while (zero_len) {
+				struct page	*page;
+				size_t		pg_len;
+
+				pg_len = min((size_t)
+						(PAGE_CACHE_SIZE - page_offset),
+						zero_len);
+
+				page = maplist[pg_index];
+
+				memset(kmap(page) + page_offset, 0, pg_len);
+				flush_dcache_page(page);
+				kunmap(page);
+
+				zero_len -= pg_len;
+				if ((pg_len + page_offset) == PAGE_CACHE_SIZE) {
+					pg_index++;
+					page_offset = 0;
+				} else {
+					page_offset = (page_offset + pg_len) &
+							~PAGE_CACHE_MASK;
+				}
+			}
+		} else {
+			int	pg_count;
+
+			pg_count = (size + page_offset + PAGE_CACHE_SIZE - 1)
+					>> PAGE_CACHE_SHIFT;
+			if ((pb = pagebuf_lookup(iomap.iomap_target, offset,
+						size, pb_flags)) == NULL) {
+				error = ENOMEM;
+				break;
+			}
+			/* Need to hook up pagebuf to kiobuf pages */
+			pb->pb_pages = &maplist[pg_index];
+			pb->pb_offset = page_offset;
+			pb->pb_page_count = pg_count;
+			pb->pb_bn = iomap.iomap_bn + (iomap.iomap_delta >> BBSHIFT);
+
+			error = pagebuf_iostart(pb, pb_flags);
+			if (!error && (iomap.iomap_flags & IOMAP_UNWRITTEN)) {
+				VOP_BMAP(vp, XFS_BUF_OFFSET(pb),
+					XFS_BUF_SIZE(pb),
+					BMAPI_UNWRITTEN, NULL, NULL, error);
+			}
+
+			pagebuf_rele(pb);
+
+			if (error)
+				break;
+
+			page_offset = (page_offset + size) & ~PAGE_CACHE_MASK;
+			if (page_offset)
+				pg_count--;
+			pg_index += pg_count;
+		}
+
+		offset += size;
+		length -= size;
+	}
+
+	if (error)
+		return -error;
+	return (int)(total - length);
+}
+
+
+struct address_space_operations linvfs_aops = {
+	.readpage		= linvfs_readpage,
+	.writepage		= linvfs_writepage,
+	.sync_page		= block_sync_page,
+	.releasepage		= linvfs_release_page,
+	.prepare_write		= linvfs_prepare_write,
+	.commit_write		= generic_commit_write,
+	.bmap			= linvfs_bmap,
+	.direct_IO		= linvfs_direct_IO,
+};
diff --git a/fs/xfs/linux-2.4/xfs_buf.c b/fs/xfs/linux-2.4/xfs_buf.c
new file mode 100644
index 00000000000000..1c26c3cc8659b0
--- /dev/null
+++ b/fs/xfs/linux-2.4/xfs_buf.c
@@ -0,0 +1,2368 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+/*
+ *	The xfs_buf.c code provides an abstract buffer cache model on top
+ *	of the Linux page cache.  Cached metadata blocks for a file system
+ *	are hashed to the inode for the block device.  xfs_buf.c assembles
+ *	buffers (xfs_buf_t) on demand to aggregate such cached pages for I/O.
+ *
+ *      Written by Steve Lord, Jim Mostek, Russell Cattelan
+ *		    and Rajagopal Ananthanarayanan ("ananth") at SGI.
+ *
+ */
+
+#include <linux/stddef.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/pagemap.h>
+#include <linux/init.h>
+#include <linux/vmalloc.h>
+#include <linux/blkdev.h>
+#include <linux/locks.h>
+#include <linux/sysctl.h>
+#include <linux/proc_fs.h>
+
+#include "xfs_linux.h"
+
+#define BN_ALIGN_MASK	((1 << (PAGE_CACHE_SHIFT - BBSHIFT)) - 1)
+
+#ifndef GFP_READAHEAD
+#define GFP_READAHEAD	0
+#endif
+
+/*
+ * A backport of the 2.5 scheduler is used by many vendors of 2.4-based
+ * distributions.
+ * We can only guess it's presences by the lack of the SCHED_YIELD flag.
+ * If the heuristic doesn't work, change this define by hand.
+ */
+#ifndef SCHED_YIELD
+#define __HAVE_NEW_SCHEDULER	1
+#endif
+
+/*
+ * cpumask_t is used for supporting NR_CPUS > BITS_PER_LONG.
+ * If support for this is present, migrate_to_cpu exists and provides
+ * a wrapper around the set_cpus_allowed routine.
+ */
+#ifdef copy_cpumask
+#define __HAVE_CPUMASK_T	1
+#endif
+
+#ifndef __HAVE_CPUMASK_T
+# ifndef __HAVE_NEW_SCHEDULER
+#  define migrate_to_cpu(cpu)	\
+	do { current->cpus_allowed = 1UL << (cpu); } while (0)
+# else
+#  define migrate_to_cpu(cpu)	\
+	set_cpus_allowed(current, 1UL << (cpu))
+# endif
+#endif
+
+#ifndef VM_MAP
+#define VM_MAP	VM_ALLOC
+#endif
+
+/*
+ * File wide globals
+ */
+
+STATIC kmem_cache_t *pagebuf_cache;
+STATIC kmem_shaker_t pagebuf_shake;
+
+#define MAX_IO_DAEMONS		NR_CPUS
+#define CPU_TO_DAEMON(cpu)	(cpu)
+STATIC int pb_logio_daemons[MAX_IO_DAEMONS];
+STATIC struct list_head pagebuf_logiodone_tq[MAX_IO_DAEMONS];
+STATIC wait_queue_head_t pagebuf_logiodone_wait[MAX_IO_DAEMONS];
+STATIC int pb_dataio_daemons[MAX_IO_DAEMONS];
+STATIC struct list_head pagebuf_dataiodone_tq[MAX_IO_DAEMONS];
+STATIC wait_queue_head_t pagebuf_dataiodone_wait[MAX_IO_DAEMONS];
+
+/*
+ * For pre-allocated buffer head pool
+ */
+
+#define NR_RESERVED_BH	64
+static wait_queue_head_t	pb_resv_bh_wait;
+static spinlock_t		pb_resv_bh_lock = SPIN_LOCK_UNLOCKED;
+struct buffer_head		*pb_resv_bh = NULL;	/* list of bh */
+int				pb_resv_bh_cnt = 0;	/* # of bh available */
+
+STATIC void _pagebuf_ioapply(xfs_buf_t *);
+STATIC int pagebuf_daemon_wakeup(int, unsigned int);
+STATIC void pagebuf_delwri_queue(xfs_buf_t *, int);
+STATIC void pagebuf_runall_queues(struct list_head[]);
+
+/*
+ * Pagebuf debugging
+ */
+
+#ifdef PAGEBUF_TRACE
+void
+pagebuf_trace(
+	xfs_buf_t	*pb,
+	char		*id,
+	void		*data,
+	void		*ra)
+{
+	ktrace_enter(pagebuf_trace_buf,
+		pb, id,
+		(void *)(unsigned long)pb->pb_flags,
+		(void *)(unsigned long)pb->pb_hold.counter,
+		(void *)(unsigned long)pb->pb_sema.count.counter,
+		(void *)current,
+		data, ra,
+		(void *)(unsigned long)((pb->pb_file_offset>>32) & 0xffffffff),
+		(void *)(unsigned long)(pb->pb_file_offset & 0xffffffff),
+		(void *)(unsigned long)pb->pb_buffer_length,
+		NULL, NULL, NULL, NULL, NULL);
+}
+ktrace_t *pagebuf_trace_buf;
+#define PAGEBUF_TRACE_SIZE	4096
+#define PB_TRACE(pb, id, data)	\
+	pagebuf_trace(pb, id, (void *)data, (void *)__builtin_return_address(0))
+#else
+#define PB_TRACE(pb, id, data)	do { } while (0)
+#endif
+
+#ifdef PAGEBUF_LOCK_TRACKING
+# define PB_SET_OWNER(pb)	((pb)->pb_last_holder = current->pid)
+# define PB_CLEAR_OWNER(pb)	((pb)->pb_last_holder = -1)
+# define PB_GET_OWNER(pb)	((pb)->pb_last_holder)
+#else
+# define PB_SET_OWNER(pb)	do { } while (0)
+# define PB_CLEAR_OWNER(pb)	do { } while (0)
+# define PB_GET_OWNER(pb)	do { } while (0)
+#endif
+
+/*
+ * Pagebuf allocation / freeing.
+ */
+
+#define pb_to_gfp(flags) \
+	(((flags) & PBF_READ_AHEAD) ? GFP_READAHEAD : \
+	 ((flags) & PBF_DONT_BLOCK) ? GFP_NOFS : GFP_KERNEL)
+
+#define pb_to_km(flags) \
+	 (((flags) & PBF_DONT_BLOCK) ? KM_NOFS : KM_SLEEP)
+
+
+#define pagebuf_allocate(flags) \
+	kmem_zone_alloc(pagebuf_cache, pb_to_km(flags))
+#define pagebuf_deallocate(pb) \
+	kmem_zone_free(pagebuf_cache, (pb));
+
+/*
+ * Pagebuf hashing
+ */
+
+#define NBITS	8
+#define NHASH	(1<<NBITS)
+
+typedef struct {
+	struct list_head	pb_hash;
+	spinlock_t		pb_hash_lock;
+} pb_hash_t;
+
+STATIC pb_hash_t	pbhash[NHASH];
+#define pb_hash(pb)	&pbhash[pb->pb_hash_index]
+
+STATIC int
+_bhash(
+	struct block_device *bdev,
+	loff_t		base)
+{
+	int		bit, hval;
+
+	base >>= 9;
+	base ^= (unsigned long)bdev / L1_CACHE_BYTES;
+	for (bit = hval = 0; base && bit < sizeof(base) * 8; bit += NBITS) {
+		hval ^= (int)base & (NHASH-1);
+		base >>= NBITS;
+	}
+	return hval;
+}
+
+/*
+ * Mapping of multi-page buffers into contiguous virtual space
+ */
+
+typedef struct a_list {
+	void		*vm_addr;
+	struct a_list	*next;
+} a_list_t;
+
+STATIC a_list_t		*as_free_head;
+STATIC int		as_list_len;
+STATIC spinlock_t	as_lock = SPIN_LOCK_UNLOCKED;
+
+/*
+ * Try to batch vunmaps because they are costly.
+ */
+STATIC void
+free_address(
+	void		*addr)
+{
+	a_list_t	*aentry;
+
+	aentry = kmalloc(sizeof(a_list_t), GFP_ATOMIC);
+	if (aentry) {
+		spin_lock(&as_lock);
+		aentry->next = as_free_head;
+		aentry->vm_addr = addr;
+		as_free_head = aentry;
+		as_list_len++;
+		spin_unlock(&as_lock);
+	} else {
+		vunmap(addr);
+	}
+}
+
+STATIC void
+purge_addresses(void)
+{
+	a_list_t	*aentry, *old;
+
+	if (as_free_head == NULL)
+		return;
+
+	spin_lock(&as_lock);
+	aentry = as_free_head;
+	as_free_head = NULL;
+	as_list_len = 0;
+	spin_unlock(&as_lock);
+
+	while ((old = aentry) != NULL) {
+		vunmap(aentry->vm_addr);
+		aentry = aentry->next;
+		kfree(old);
+	}
+}
+
+/*
+ *	Internal pagebuf object manipulation
+ */
+
+STATIC void
+_pagebuf_initialize(
+	xfs_buf_t		*pb,
+	xfs_buftarg_t		*target,
+	loff_t			range_base,
+	size_t			range_length,
+	page_buf_flags_t	flags)
+{
+	/*
+	 * We don't want certain flags to appear in pb->pb_flags.
+	 */
+	flags &= ~(PBF_LOCK|PBF_MAPPED|PBF_DONT_BLOCK|PBF_READ_AHEAD);
+
+	memset(pb, 0, sizeof(xfs_buf_t));
+	atomic_set(&pb->pb_hold, 1);
+	init_MUTEX_LOCKED(&pb->pb_iodonesema);
+	INIT_LIST_HEAD(&pb->pb_list);
+	INIT_LIST_HEAD(&pb->pb_hash_list);
+	init_MUTEX_LOCKED(&pb->pb_sema); /* held, no waiters */
+	PB_SET_OWNER(pb);
+	pb->pb_target = target;
+	pb->pb_file_offset = range_base;
+	/*
+	 * Set buffer_length and count_desired to the same value initially.
+	 * I/O routines should use count_desired, which will be the same in
+	 * most cases but may be reset (e.g. XFS recovery).
+	 */
+	pb->pb_buffer_length = pb->pb_count_desired = range_length;
+	pb->pb_flags = flags | PBF_NONE;
+	pb->pb_bn = XFS_BUF_DADDR_NULL;
+	atomic_set(&pb->pb_pin_count, 0);
+	init_waitqueue_head(&pb->pb_waiters);
+
+	XFS_STATS_INC(pb_create);
+	PB_TRACE(pb, "initialize", target);
+}
+
+/*
+ * Allocate a page array capable of holding a specified number
+ * of pages, and point the page buf at it.
+ */
+STATIC int
+_pagebuf_get_pages(
+	xfs_buf_t		*pb,
+	int			page_count,
+	page_buf_flags_t	flags)
+{
+	/* Make sure that we have a page list */
+	if (pb->pb_pages == NULL) {
+		pb->pb_offset = page_buf_poff(pb->pb_file_offset);
+		pb->pb_page_count = page_count;
+		if (page_count <= PB_PAGES) {
+			pb->pb_pages = pb->pb_page_array;
+		} else {
+			pb->pb_pages = kmem_alloc(sizeof(struct page *) *
+					page_count, pb_to_km(flags));
+			if (pb->pb_pages == NULL)
+				return -ENOMEM;
+		}
+		memset(pb->pb_pages, 0, sizeof(struct page *) * page_count);
+	}
+	return 0;
+}
+
+/*
+ *	Frees pb_pages if it was malloced.
+ */
+STATIC void
+_pagebuf_free_pages(
+	xfs_buf_t	*bp)
+{
+	if (bp->pb_pages != bp->pb_page_array) {
+		kmem_free(bp->pb_pages,
+			  bp->pb_page_count * sizeof(struct page *));
+	}
+}
+
+/*
+ *	Releases the specified buffer.
+ *
+ * 	The modification state of any associated pages is left unchanged.
+ * 	The buffer most not be on any hash - use pagebuf_rele instead for
+ * 	hashed and refcounted buffers
+ */
+void
+pagebuf_free(
+	xfs_buf_t		*bp)
+{
+	PB_TRACE(bp, "free", 0);
+
+	ASSERT(list_empty(&bp->pb_hash_list));
+
+	if (bp->pb_flags & _PBF_PAGE_CACHE) {
+		uint		i;
+
+		if ((bp->pb_flags & PBF_MAPPED) && (bp->pb_page_count > 1))
+			free_address(bp->pb_addr - bp->pb_offset);
+
+		for (i = 0; i < bp->pb_page_count; i++)
+			page_cache_release(bp->pb_pages[i]);
+		_pagebuf_free_pages(bp);
+	} else if (bp->pb_flags & _PBF_KMEM_ALLOC) {
+		 /*
+		  * XXX(hch): bp->pb_count_desired might be incorrect (see
+		  * pagebuf_associate_memory for details), but fortunately
+		  * the Linux version of kmem_free ignores the len argument..
+		  */
+		kmem_free(bp->pb_addr, bp->pb_count_desired);
+		_pagebuf_free_pages(bp);
+	}
+
+	pagebuf_deallocate(bp);
+}
+
+/*
+ *	Finds all pages for buffer in question and builds it's page list.
+ */
+STATIC int
+_pagebuf_lookup_pages(
+	xfs_buf_t		*bp,
+	uint			flags)
+{
+	struct address_space	*mapping = bp->pb_target->pbr_mapping;
+	size_t			blocksize = bp->pb_target->pbr_bsize;
+	int			gfp_mask = pb_to_gfp(flags);
+	unsigned short		page_count, i;
+	pgoff_t			first;
+	loff_t			end;
+	int			error;
+
+	end = bp->pb_file_offset + bp->pb_buffer_length;
+	page_count = page_buf_btoc(end) - page_buf_btoct(bp->pb_file_offset);
+
+	error = _pagebuf_get_pages(bp, page_count, flags);
+	if (unlikely(error))
+		return error;
+	bp->pb_flags |= _PBF_PAGE_CACHE;
+
+	first = bp->pb_file_offset >> PAGE_CACHE_SHIFT;
+
+	for (i = 0; i < bp->pb_page_count; i++) {
+		struct page	*page;
+		uint		retries = 0;
+
+	      retry:
+		page = find_or_create_page(mapping, first + i, gfp_mask);
+		if (unlikely(page == NULL)) {
+			if (flags & PBF_READ_AHEAD) {
+				bp->pb_page_count = i;
+				for (i = 0; i < bp->pb_page_count; i++)
+					unlock_page(bp->pb_pages[i]);
+				return -ENOMEM;
+			}
+
+			/*
+			 * This could deadlock.
+			 *
+			 * But until all the XFS lowlevel code is revamped to
+			 * handle buffer allocation failures we can't do much.
+			 */
+			if (!(++retries % 100))
+				printk(KERN_ERR
+					"possible deadlock in %s (mode:0x%x)\n",
+					__FUNCTION__, gfp_mask);
+
+			XFS_STATS_INC(pb_page_retries);
+			pagebuf_daemon_wakeup(0, gfp_mask);
+			set_current_state(TASK_UNINTERRUPTIBLE);
+			schedule_timeout(10);
+			goto retry;
+		}
+
+		XFS_STATS_INC(pb_page_found);
+
+		/* if we need to do I/O on a page record the fact */
+		if (!Page_Uptodate(page)) {
+			page_count--;
+			if (blocksize == PAGE_CACHE_SIZE && (flags & PBF_READ))
+				bp->pb_locked = 1;
+		}
+
+		bp->pb_pages[i] = page;
+	}
+
+	if (!bp->pb_locked) {
+		for (i = 0; i < bp->pb_page_count; i++)
+			unlock_page(bp->pb_pages[i]);
+	}
+
+	if (page_count) {
+		/* if we have any uptodate pages, mark that in the buffer */
+		bp->pb_flags &= ~PBF_NONE;
+
+		/* if some pages aren't uptodate, mark that in the buffer */
+		if (page_count != bp->pb_page_count)
+			bp->pb_flags |= PBF_PARTIAL;
+	}
+
+	PB_TRACE(bp, "lookup_pages", (long)page_count);
+	return error;
+}
+
+/*
+ *	Map buffer into kernel address-space if nessecary.
+ */
+STATIC int
+_pagebuf_map_pages(
+	xfs_buf_t		*bp,
+	uint			flags)
+{
+	/* A single page buffer is always mappable */
+	if (bp->pb_page_count == 1) {
+		bp->pb_addr = page_address(bp->pb_pages[0]) + bp->pb_offset;
+		bp->pb_flags |= PBF_MAPPED;
+	} else if (flags & PBF_MAPPED) {
+		if (as_list_len > 64)
+			purge_addresses();
+		bp->pb_addr = vmap(bp->pb_pages, bp->pb_page_count,
+				VM_MAP, PAGE_KERNEL);
+		if (unlikely(bp->pb_addr == NULL))
+			return -ENOMEM;
+		bp->pb_addr += bp->pb_offset;
+		bp->pb_flags |= PBF_MAPPED;
+	}
+
+	return 0;
+}
+
+/*
+ *	Pre-allocation of a pool of buffer heads for use in
+ *	low-memory situations.
+ */
+
+/*
+ *	_pagebuf_prealloc_bh
+ *
+ *	Pre-allocate a pool of "count" buffer heads at startup.
+ *	Puts them on a list at "pb_resv_bh"
+ *	Returns number of bh actually allocated to pool.
+ */
+STATIC int
+_pagebuf_prealloc_bh(
+	int			count)
+{
+	struct buffer_head	*bh;
+	int			i;
+
+	for (i = 0; i < count; i++) {
+		bh = kmem_cache_alloc(bh_cachep, SLAB_KERNEL);
+		if (!bh)
+			break;
+		bh->b_pprev = &pb_resv_bh;
+		bh->b_next = pb_resv_bh;
+		pb_resv_bh = bh;
+		pb_resv_bh_cnt++;
+	}
+	return i;
+}
+
+/*
+ *	_pagebuf_get_prealloc_bh
+ *
+ *	Get one buffer head from our pre-allocated pool.
+ *	If pool is empty, sleep 'til one comes back in.
+ *	Returns aforementioned buffer head.
+ */
+STATIC struct buffer_head *
+_pagebuf_get_prealloc_bh(void)
+{
+	unsigned long		flags;
+	struct buffer_head	*bh;
+	DECLARE_WAITQUEUE	(wait, current);
+
+	spin_lock_irqsave(&pb_resv_bh_lock, flags);
+
+	if (pb_resv_bh_cnt < 1) {
+		add_wait_queue(&pb_resv_bh_wait, &wait);
+		do {
+			set_current_state(TASK_UNINTERRUPTIBLE);
+			spin_unlock_irqrestore(&pb_resv_bh_lock, flags);
+			run_task_queue(&tq_disk);
+			schedule();
+			spin_lock_irqsave(&pb_resv_bh_lock, flags);
+		} while (pb_resv_bh_cnt < 1);
+		__set_current_state(TASK_RUNNING);
+		remove_wait_queue(&pb_resv_bh_wait, &wait);
+	}
+
+	BUG_ON(pb_resv_bh_cnt < 1);
+	BUG_ON(!pb_resv_bh);
+
+	bh = pb_resv_bh;
+	pb_resv_bh = bh->b_next;
+	pb_resv_bh_cnt--;
+
+	spin_unlock_irqrestore(&pb_resv_bh_lock, flags);
+	return bh;
+}
+
+/*
+ *	_pagebuf_free_bh
+ *
+ *	Take care of buffer heads that we're finished with.
+ *	Call this instead of just kmem_cache_free(bh_cachep, bh)
+ *	when you're done with a bh.
+ *
+ *	If our pre-allocated pool is full, just free the buffer head.
+ *	Otherwise, put it back in the pool, and wake up anybody
+ *	waiting for one.
+ */
+STATIC inline void
+_pagebuf_free_bh(
+	struct buffer_head	*bh)
+{
+	unsigned long		flags;
+	int			free;
+
+	if (! (free = pb_resv_bh_cnt >= NR_RESERVED_BH)) {
+		spin_lock_irqsave(&pb_resv_bh_lock, flags);
+
+		if (! (free = pb_resv_bh_cnt >= NR_RESERVED_BH)) {
+			bh->b_pprev = &pb_resv_bh;
+			bh->b_next = pb_resv_bh;
+			pb_resv_bh = bh;
+			pb_resv_bh_cnt++;
+
+			if (waitqueue_active(&pb_resv_bh_wait)) {
+				wake_up(&pb_resv_bh_wait);
+			}
+		}
+
+		spin_unlock_irqrestore(&pb_resv_bh_lock, flags);
+	}
+	if (free) {
+		kmem_cache_free(bh_cachep, bh);
+	}
+}
+
+/*
+ *	Finding and Reading Buffers
+ */
+
+/*
+ *	_pagebuf_find
+ *
+ *	Looks up, and creates if absent, a lockable buffer for
+ *	a given range of an inode.  The buffer is returned
+ *	locked.	 If other overlapping buffers exist, they are
+ *	released before the new buffer is created and locked,
+ *	which may imply that this call will block until those buffers
+ *	are unlocked.  No I/O is implied by this call.
+ */
+xfs_buf_t *
+_pagebuf_find(				/* find buffer for block	*/
+	xfs_buftarg_t		*target,/* target for block		*/
+	loff_t			ioff,	/* starting offset of range	*/
+	size_t			isize,	/* length of range		*/
+	page_buf_flags_t	flags,	/* PBF_TRYLOCK			*/
+	xfs_buf_t		*new_pb)/* newly allocated buffer	*/
+{
+	loff_t			range_base;
+	size_t			range_length;
+	int			hval;
+	pb_hash_t		*h;
+	xfs_buf_t		*pb, *n;
+	int			not_locked;
+
+	range_base = (ioff << BBSHIFT);
+	range_length = (isize << BBSHIFT);
+
+	/* Ensure we never do IOs smaller than the sector size */
+	BUG_ON(range_length < (1 << target->pbr_sshift));
+
+	/* Ensure we never do IOs that are not sector aligned */
+	BUG_ON(range_base & (loff_t)target->pbr_smask);
+
+	hval = _bhash(target->pbr_bdev, range_base);
+	h = &pbhash[hval];
+
+	spin_lock(&h->pb_hash_lock);
+
+	list_for_each_entry_safe(pb, n, &h->pb_hash, pb_hash_list) {
+		if (pb->pb_target == target &&
+		    pb->pb_file_offset == range_base &&
+		    pb->pb_buffer_length == range_length) {
+			/* If we look at something bring it to the
+			 * front of the list for next time
+			 */
+			atomic_inc(&pb->pb_hold);
+			list_move(&pb->pb_hash_list, &h->pb_hash);
+			goto found;
+		}
+	}
+
+	/* No match found */
+	if (new_pb) {
+		_pagebuf_initialize(new_pb, target, range_base,
+				range_length, flags);
+		new_pb->pb_hash_index = hval;
+		list_add(&new_pb->pb_hash_list, &h->pb_hash);
+	} else {
+		XFS_STATS_INC(pb_miss_locked);
+	}
+
+	spin_unlock(&h->pb_hash_lock);
+	return (new_pb);
+
+found:
+	spin_unlock(&h->pb_hash_lock);
+
+	/* Attempt to get the semaphore without sleeping,
+	 * if this does not work then we need to drop the
+	 * spinlock and do a hard attempt on the semaphore.
+	 */
+	not_locked = down_trylock(&pb->pb_sema);
+	if (not_locked) {
+		if (!(flags & PBF_TRYLOCK)) {
+			/* wait for buffer ownership */
+			PB_TRACE(pb, "get_lock", 0);
+			pagebuf_lock(pb);
+			XFS_STATS_INC(pb_get_locked_waited);
+		} else {
+			/* We asked for a trylock and failed, no need
+			 * to look at file offset and length here, we
+			 * know that this pagebuf at least overlaps our
+			 * pagebuf and is locked, therefore our buffer
+			 * either does not exist, or is this buffer
+			 */
+
+			pagebuf_rele(pb);
+			XFS_STATS_INC(pb_busy_locked);
+			return (NULL);
+		}
+	} else {
+		/* trylock worked */
+		PB_SET_OWNER(pb);
+	}
+
+	if (pb->pb_flags & PBF_STALE)
+		pb->pb_flags &= PBF_MAPPED;
+	PB_TRACE(pb, "got_lock", 0);
+	XFS_STATS_INC(pb_get_locked);
+	return (pb);
+}
+
+/*
+ *	xfs_buf_get_flags assembles a buffer covering the specified range.
+ *
+ *	Storage in memory for all portions of the buffer will be allocated,
+ *	although backing storage may not be.
+ */
+xfs_buf_t *
+xfs_buf_get_flags(			/* allocate a buffer		*/
+	xfs_buftarg_t		*target,/* target for buffer		*/
+	loff_t			ioff,	/* starting offset of range	*/
+	size_t			isize,	/* length of range		*/
+	page_buf_flags_t	flags)	/* PBF_TRYLOCK			*/
+{
+	xfs_buf_t		*pb, *new_pb;
+	int			error = 0, i;
+
+	new_pb = pagebuf_allocate(flags);
+	if (unlikely(!new_pb))
+		return NULL;
+
+	pb = _pagebuf_find(target, ioff, isize, flags, new_pb);
+	if (pb == new_pb) {
+		error = _pagebuf_lookup_pages(pb, flags);
+		if (error)
+			goto no_buffer;
+	} else {
+		pagebuf_deallocate(new_pb);
+		if (unlikely(pb == NULL))
+			return NULL;
+	}
+
+	for (i = 0; i < pb->pb_page_count; i++)
+		mark_page_accessed(pb->pb_pages[i]);
+
+	if (!(pb->pb_flags & PBF_MAPPED)) {
+		error = _pagebuf_map_pages(pb, flags);
+		if (unlikely(error)) {
+			printk(KERN_WARNING "%s: failed to map pages\n",
+					__FUNCTION__);
+			goto no_buffer;
+		}
+	}
+
+	XFS_STATS_INC(pb_get);
+
+	/*
+	 * Always fill in the block number now, the mapped cases can do
+	 * their own overlay of this later.
+	 */
+	pb->pb_bn = ioff;
+	pb->pb_count_desired = pb->pb_buffer_length;
+
+	PB_TRACE(pb, "get", (unsigned long)flags);
+	return pb;
+
+ no_buffer:
+	if (flags & (PBF_LOCK | PBF_TRYLOCK))
+		pagebuf_unlock(pb);
+	pagebuf_rele(pb);
+	return NULL;
+}
+
+xfs_buf_t *
+xfs_buf_read_flags(
+	xfs_buftarg_t		*target,
+	loff_t			ioff,
+	size_t			isize,
+	page_buf_flags_t	flags)
+{
+	xfs_buf_t		*pb;
+
+	flags |= PBF_READ;
+
+	pb = xfs_buf_get_flags(target, ioff, isize, flags);
+	if (pb) {
+		if (PBF_NOT_DONE(pb)) {
+			PB_TRACE(pb, "read", (unsigned long)flags);
+			XFS_STATS_INC(pb_get_read);
+			pagebuf_iostart(pb, flags);
+		} else if (flags & PBF_ASYNC) {
+			PB_TRACE(pb, "read_async", (unsigned long)flags);
+			/*
+			 * Read ahead call which is already satisfied,
+			 * drop the buffer
+			 */
+			goto no_buffer;
+		} else {
+			PB_TRACE(pb, "read_done", (unsigned long)flags);
+			/* We do not want read in the flags */
+			pb->pb_flags &= ~PBF_READ;
+		}
+	}
+
+	return pb;
+
+ no_buffer:
+	if (flags & (PBF_LOCK | PBF_TRYLOCK))
+		pagebuf_unlock(pb);
+	pagebuf_rele(pb);
+	return NULL;
+}
+
+/*
+ * Create a skeletal pagebuf (no pages associated with it).
+ */
+xfs_buf_t *
+pagebuf_lookup(
+	xfs_buftarg_t		*target,
+	loff_t			ioff,
+	size_t			isize,
+	page_buf_flags_t	flags)
+{
+	xfs_buf_t		*pb;
+
+	flags |= _PBF_PRIVATE_BH;
+	pb = pagebuf_allocate(flags);
+	if (pb) {
+		_pagebuf_initialize(pb, target, ioff, isize, flags);
+	}
+	return pb;
+}
+
+/*
+ * If we are not low on memory then do the readahead in a deadlock
+ * safe manner.
+ */
+void
+pagebuf_readahead(
+	xfs_buftarg_t		*target,
+	loff_t			ioff,
+	size_t			isize,
+	page_buf_flags_t	flags)
+{
+	flags |= (PBF_TRYLOCK|PBF_ASYNC|PBF_READ_AHEAD);
+	xfs_buf_read_flags(target, ioff, isize, flags);
+}
+
+xfs_buf_t *
+pagebuf_get_empty(
+	size_t			len,
+	xfs_buftarg_t		*target)
+{
+	xfs_buf_t		*pb;
+
+	pb = pagebuf_allocate(0);
+	if (pb)
+		_pagebuf_initialize(pb, target, 0, len, 0);
+	return pb;
+}
+
+static inline struct page *
+mem_to_page(
+	void			*addr)
+{
+	if (((unsigned long)addr < VMALLOC_START) ||
+	    ((unsigned long)addr >= VMALLOC_END)) {
+		return virt_to_page(addr);
+	} else {
+		return vmalloc_to_page(addr);
+	}
+}
+
+int
+pagebuf_associate_memory(
+	xfs_buf_t		*pb,
+	void			*mem,
+	size_t			len)
+{
+	int			rval;
+	int			i = 0;
+	size_t			ptr;
+	size_t			end, end_cur;
+	off_t			offset;
+	int			page_count;
+
+	page_count = PAGE_CACHE_ALIGN(len) >> PAGE_CACHE_SHIFT;
+	offset = (off_t) mem - ((off_t)mem & PAGE_CACHE_MASK);
+	if (offset && (len > PAGE_CACHE_SIZE))
+		page_count++;
+
+	/* Free any previous set of page pointers */
+	if (pb->pb_pages)
+		_pagebuf_free_pages(pb);
+
+	pb->pb_pages = NULL;
+	pb->pb_addr = mem;
+
+	rval = _pagebuf_get_pages(pb, page_count, 0);
+	if (rval)
+		return rval;
+
+	pb->pb_offset = offset;
+	ptr = (size_t) mem & PAGE_CACHE_MASK;
+	end = PAGE_CACHE_ALIGN((size_t) mem + len);
+	end_cur = end;
+	/* set up first page */
+	pb->pb_pages[0] = mem_to_page(mem);
+
+	ptr += PAGE_CACHE_SIZE;
+	pb->pb_page_count = ++i;
+	while (ptr < end) {
+		pb->pb_pages[i] = mem_to_page((void *)ptr);
+		pb->pb_page_count = ++i;
+		ptr += PAGE_CACHE_SIZE;
+	}
+	pb->pb_locked = 0;
+
+	pb->pb_count_desired = pb->pb_buffer_length = len;
+	pb->pb_flags |= PBF_MAPPED | _PBF_PRIVATE_BH;
+
+	return 0;
+}
+
+xfs_buf_t *
+pagebuf_get_no_daddr(
+	size_t			len,
+	xfs_buftarg_t		*target)
+{
+	size_t			malloc_len = len;
+	xfs_buf_t		*bp;
+	void			*data;
+	int			error;
+
+	bp = pagebuf_allocate(0);
+	if (unlikely(bp == NULL))
+		goto fail;
+	_pagebuf_initialize(bp, target, 0, len, PBF_FORCEIO);
+
+ try_again:
+	data = kmem_alloc(malloc_len, KM_SLEEP | KM_MAYFAIL);
+	if (unlikely(data == NULL))
+		goto fail_free_buf;
+
+	/* check whether alignment matches.. */
+	if ((__psunsigned_t)data !=
+	    ((__psunsigned_t)data & ~target->pbr_smask)) {
+		/* .. else double the size and try again */
+		kmem_free(data, malloc_len);
+		malloc_len <<= 1;
+		goto try_again;
+	}
+
+	error = pagebuf_associate_memory(bp, data, len);
+	if (error)
+		goto fail_free_mem;
+	bp->pb_flags |= _PBF_KMEM_ALLOC;
+
+	pagebuf_unlock(bp);
+
+	PB_TRACE(bp, "no_daddr", data);
+	return bp;
+ fail_free_mem:
+	kmem_free(data, malloc_len);
+ fail_free_buf:
+	pagebuf_free(bp);
+ fail:
+	return NULL;
+}
+
+/*
+ *	pagebuf_hold
+ *
+ *	Increment reference count on buffer, to hold the buffer concurrently
+ *	with another thread which may release (free) the buffer asynchronously.
+ *
+ *	Must hold the buffer already to call this function.
+ */
+void
+pagebuf_hold(
+	xfs_buf_t		*pb)
+{
+	atomic_inc(&pb->pb_hold);
+	PB_TRACE(pb, "hold", 0);
+}
+
+/*
+ *	pagebuf_rele
+ *
+ *	pagebuf_rele releases a hold on the specified buffer.  If the
+ *	the hold count is 1, pagebuf_rele calls pagebuf_free.
+ */
+void
+pagebuf_rele(
+	xfs_buf_t		*pb)
+{
+	pb_hash_t		*hash = pb_hash(pb);
+
+	PB_TRACE(pb, "rele", pb->pb_relse);
+
+	if (atomic_dec_and_lock(&pb->pb_hold, &hash->pb_hash_lock)) {
+		int		do_free = 1;
+
+		if (pb->pb_relse) {
+			atomic_inc(&pb->pb_hold);
+			spin_unlock(&hash->pb_hash_lock);
+			(*(pb->pb_relse)) (pb);
+			spin_lock(&hash->pb_hash_lock);
+			do_free = 0;
+		}
+
+		if (pb->pb_flags & PBF_DELWRI) {
+			pb->pb_flags |= PBF_ASYNC;
+			atomic_inc(&pb->pb_hold);
+			pagebuf_delwri_queue(pb, 0);
+			do_free = 0;
+		} else if (pb->pb_flags & PBF_FS_MANAGED) {
+			do_free = 0;
+		}
+
+		if (do_free) {
+			list_del_init(&pb->pb_hash_list);
+			spin_unlock(&hash->pb_hash_lock);
+			xfs_buf_free(pb);
+		} else {
+			spin_unlock(&hash->pb_hash_lock);
+		}
+	}
+}
+
+
+/*
+ *	Mutual exclusion on buffers.  Locking model:
+ *
+ *	Buffers associated with inodes for which buffer locking
+ *	is not enabled are not protected by semaphores, and are
+ *	assumed to be exclusively owned by the caller.  There is a
+ *	spinlock in the buffer, used by the caller when concurrent
+ *	access is possible.
+ */
+
+/*
+ *	pagebuf_cond_lock
+ *
+ *	pagebuf_cond_lock locks a buffer object, if it is not already locked.
+ *	Note that this in no way
+ *	locks the underlying pages, so it is only useful for synchronizing
+ *	concurrent use of page buffer objects, not for synchronizing independent
+ *	access to the underlying pages.
+ */
+int
+pagebuf_cond_lock(			/* lock buffer, if not locked	*/
+					/* returns -EBUSY if locked)	*/
+	xfs_buf_t		*pb)
+{
+	int			locked;
+
+	locked = down_trylock(&pb->pb_sema) == 0;
+	if (locked) {
+		PB_SET_OWNER(pb);
+	}
+	PB_TRACE(pb, "cond_lock", (long)locked);
+	return(locked ? 0 : -EBUSY);
+}
+
+#if defined(DEBUG) || defined(XFS_BLI_TRACE)
+/*
+ *	pagebuf_lock_value
+ *
+ *	Return lock value for a pagebuf
+ */
+int
+pagebuf_lock_value(
+	xfs_buf_t		*pb)
+{
+	return(atomic_read(&pb->pb_sema.count));
+}
+#endif
+
+/*
+ *	pagebuf_lock
+ *
+ *	pagebuf_lock locks a buffer object.  Note that this in no way
+ *	locks the underlying pages, so it is only useful for synchronizing
+ *	concurrent use of page buffer objects, not for synchronizing independent
+ *	access to the underlying pages.
+ */
+int
+pagebuf_lock(
+	xfs_buf_t		*pb)
+{
+	PB_TRACE(pb, "lock", 0);
+	if (atomic_read(&pb->pb_io_remaining))
+		run_task_queue(&tq_disk);
+	down(&pb->pb_sema);
+	PB_SET_OWNER(pb);
+	PB_TRACE(pb, "locked", 0);
+	return 0;
+}
+
+/*
+ *	pagebuf_unlock
+ *
+ *	pagebuf_unlock releases the lock on the buffer object created by
+ *	pagebuf_lock or pagebuf_cond_lock (not any
+ *	pinning of underlying pages created by pagebuf_pin).
+ */
+void
+pagebuf_unlock(				/* unlock buffer		*/
+	xfs_buf_t		*pb)	/* buffer to unlock		*/
+{
+	PB_CLEAR_OWNER(pb);
+	up(&pb->pb_sema);
+	PB_TRACE(pb, "unlock", 0);
+}
+
+
+/*
+ *	Pinning Buffer Storage in Memory
+ */
+
+/*
+ *	pagebuf_pin
+ *
+ *	pagebuf_pin locks all of the memory represented by a buffer in
+ *	memory.  Multiple calls to pagebuf_pin and pagebuf_unpin, for
+ *	the same or different buffers affecting a given page, will
+ *	properly count the number of outstanding "pin" requests.  The
+ *	buffer may be released after the pagebuf_pin and a different
+ *	buffer used when calling pagebuf_unpin, if desired.
+ *	pagebuf_pin should be used by the file system when it wants be
+ *	assured that no attempt will be made to force the affected
+ *	memory to disk.	 It does not assure that a given logical page
+ *	will not be moved to a different physical page.
+ */
+void
+pagebuf_pin(
+	xfs_buf_t		*pb)
+{
+	atomic_inc(&pb->pb_pin_count);
+	PB_TRACE(pb, "pin", (long)pb->pb_pin_count.counter);
+}
+
+/*
+ *	pagebuf_unpin
+ *
+ *	pagebuf_unpin reverses the locking of memory performed by
+ *	pagebuf_pin.  Note that both functions affected the logical
+ *	pages associated with the buffer, not the buffer itself.
+ */
+void
+pagebuf_unpin(
+	xfs_buf_t		*pb)
+{
+	if (atomic_dec_and_test(&pb->pb_pin_count)) {
+		wake_up_all(&pb->pb_waiters);
+	}
+	PB_TRACE(pb, "unpin", (long)pb->pb_pin_count.counter);
+}
+
+int
+pagebuf_ispin(
+	xfs_buf_t		*pb)
+{
+	return atomic_read(&pb->pb_pin_count);
+}
+
+/*
+ *	pagebuf_wait_unpin
+ *
+ *	pagebuf_wait_unpin waits until all of the memory associated
+ *	with the buffer is not longer locked in memory.  It returns
+ *	immediately if none of the affected pages are locked.
+ */
+static inline void
+_pagebuf_wait_unpin(
+	xfs_buf_t		*pb)
+{
+	DECLARE_WAITQUEUE	(wait, current);
+
+	if (atomic_read(&pb->pb_pin_count) == 0)
+		return;
+
+	add_wait_queue(&pb->pb_waiters, &wait);
+	for (;;) {
+		set_current_state(TASK_UNINTERRUPTIBLE);
+		if (atomic_read(&pb->pb_pin_count) == 0)
+			break;
+		if (atomic_read(&pb->pb_io_remaining))
+			run_task_queue(&tq_disk);
+		schedule();
+	}
+	remove_wait_queue(&pb->pb_waiters, &wait);
+	set_current_state(TASK_RUNNING);
+}
+
+
+/*
+ *	Buffer Utility Routines
+ */
+
+/*
+ *	pagebuf_iodone
+ *
+ *	pagebuf_iodone marks a buffer for which I/O is in progress
+ *	done with respect to that I/O.	The pb_iodone routine, if
+ *	present, will be called as a side-effect.
+ */
+void
+pagebuf_iodone_sched(
+	void			*v)
+{
+	xfs_buf_t		*bp = (xfs_buf_t *)v;
+
+	if (bp->pb_iodone)
+		(*(bp->pb_iodone))(bp);
+	else if (bp->pb_flags & PBF_ASYNC)
+		xfs_buf_relse(bp);
+}
+
+void
+pagebuf_iodone(
+	xfs_buf_t		*pb,
+	int			dataio,
+	int			schedule)
+{
+	pb->pb_flags &= ~(PBF_READ | PBF_WRITE);
+	if (pb->pb_error == 0) {
+		pb->pb_flags &= ~(PBF_PARTIAL | PBF_NONE);
+	}
+
+	PB_TRACE(pb, "iodone", pb->pb_iodone);
+
+	if ((pb->pb_iodone) || (pb->pb_flags & PBF_ASYNC)) {
+		if (schedule) {
+			int	daemon = CPU_TO_DAEMON(smp_processor_id());
+
+			INIT_TQUEUE(&pb->pb_iodone_sched,
+				pagebuf_iodone_sched, (void *)pb);
+			queue_task(&pb->pb_iodone_sched, dataio ?
+				&pagebuf_dataiodone_tq[daemon] :
+				&pagebuf_logiodone_tq[daemon]);
+			wake_up(dataio ?
+				&pagebuf_dataiodone_wait[daemon] :
+				&pagebuf_logiodone_wait[daemon]);
+		} else {
+			pagebuf_iodone_sched(pb);
+		}
+	} else {
+		up(&pb->pb_iodonesema);
+	}
+}
+
+/*
+ *	pagebuf_ioerror
+ *
+ *	pagebuf_ioerror sets the error code for a buffer.
+ */
+void
+pagebuf_ioerror(			/* mark/clear buffer error flag */
+	xfs_buf_t		*pb,	/* buffer to mark		*/
+	int			error)	/* error to store (0 if none)	*/
+{
+	ASSERT(error >= 0 && error <= 0xffff);
+	pb->pb_error = (unsigned short)error;
+	PB_TRACE(pb, "ioerror", (unsigned long)error);
+}
+
+/*
+ *	pagebuf_iostart
+ *
+ *	pagebuf_iostart initiates I/O on a buffer, based on the flags supplied.
+ *	If necessary, it will arrange for any disk space allocation required,
+ *	and it will break up the request if the block mappings require it.
+ *	The pb_iodone routine in the buffer supplied will only be called
+ *	when all of the subsidiary I/O requests, if any, have been completed.
+ *	pagebuf_iostart calls the pagebuf_ioinitiate routine or
+ *	pagebuf_iorequest, if the former routine is not defined, to start
+ *	the I/O on a given low-level request.
+ */
+int
+pagebuf_iostart(			/* start I/O on a buffer	  */
+	xfs_buf_t		*pb,	/* buffer to start		  */
+	page_buf_flags_t	flags)	/* PBF_LOCK, PBF_ASYNC, PBF_READ, */
+					/* PBF_WRITE, PBF_DELWRI,	  */
+					/* PBF_DONT_BLOCK		  */
+{
+	int			status = 0;
+
+	PB_TRACE(pb, "iostart", (unsigned long)flags);
+
+	if (flags & PBF_DELWRI) {
+		pb->pb_flags &= ~(PBF_READ | PBF_WRITE | PBF_ASYNC);
+		pb->pb_flags |= flags & (PBF_DELWRI | PBF_ASYNC);
+		pagebuf_delwri_queue(pb, 1);
+		return status;
+	}
+
+	pb->pb_flags &= ~(PBF_READ | PBF_WRITE | PBF_ASYNC | PBF_DELWRI | \
+			PBF_READ_AHEAD | _PBF_RUN_QUEUES);
+	pb->pb_flags |= flags & (PBF_READ | PBF_WRITE | PBF_ASYNC | \
+			PBF_READ_AHEAD | _PBF_RUN_QUEUES);
+
+	BUG_ON(pb->pb_bn == XFS_BUF_DADDR_NULL);
+
+	/* For writes allow an alternate strategy routine to precede
+	 * the actual I/O request (which may not be issued at all in
+	 * a shutdown situation, for example).
+	 */
+	status = (flags & PBF_WRITE) ?
+		pagebuf_iostrategy(pb) : pagebuf_iorequest(pb);
+
+	/* Wait for I/O if we are not an async request.
+	 * Note: async I/O request completion will release the buffer,
+	 * and that can already be done by this point.  So using the
+	 * buffer pointer from here on, after async I/O, is invalid.
+	 */
+	if (!status && !(flags & PBF_ASYNC))
+		status = pagebuf_iowait(pb);
+
+	return status;
+}
+
+
+/*
+ * Helper routines for pagebuf_iorequest (pagebuf I/O completion)
+ */
+
+STATIC __inline__ int
+_pagebuf_iolocked(
+	xfs_buf_t		*pb)
+{
+	ASSERT(pb->pb_flags & (PBF_READ|PBF_WRITE));
+	if (pb->pb_target->pbr_bsize < PAGE_CACHE_SIZE)
+		return pb->pb_locked;
+	if (pb->pb_flags & PBF_READ)
+		return pb->pb_locked;
+	return (pb->pb_flags & _PBF_PAGE_CACHE);
+}
+
+STATIC void
+_pagebuf_iodone(
+	xfs_buf_t		*pb,
+	int			schedule)
+{
+	int			i;
+
+	if (atomic_dec_and_test(&pb->pb_io_remaining) != 1)
+		return;
+
+	if (_pagebuf_iolocked(pb))
+		for (i = 0; i < pb->pb_page_count; i++)
+			unlock_page(pb->pb_pages[i]);
+	pb->pb_locked = 0;
+	pagebuf_iodone(pb, (pb->pb_flags & PBF_FS_DATAIOD), schedule);
+}
+
+STATIC void
+_end_io_pagebuf(
+	struct buffer_head	*bh,
+	int			uptodate,
+	int			fullpage)
+{
+	struct page		*page = bh->b_page;
+	xfs_buf_t		*pb = (xfs_buf_t *)bh->b_private;
+
+	mark_buffer_uptodate(bh, uptodate);
+	put_bh(bh);
+
+	if (!uptodate) {
+		SetPageError(page);
+		pb->pb_error = EIO;
+	}
+
+	if (fullpage) {
+		unlock_buffer(bh);
+		_pagebuf_free_bh(bh);
+		if (!PageError(page))
+			SetPageUptodate(page);
+	} else {
+		static spinlock_t page_uptodate_lock = SPIN_LOCK_UNLOCKED;
+		struct buffer_head *bp;
+		unsigned long flags;
+
+		ASSERT(PageLocked(page));
+		spin_lock_irqsave(&page_uptodate_lock, flags);
+		clear_buffer_async(bh);
+		unlock_buffer(bh);
+		for (bp = bh->b_this_page; bp != bh; bp = bp->b_this_page) {
+			if (buffer_locked(bp)) {
+				if (buffer_async(bp))
+					break;
+			} else if (!buffer_uptodate(bp))
+				break;
+		}
+		spin_unlock_irqrestore(&page_uptodate_lock, flags);
+		if (bp == bh && !PageError(page))
+			SetPageUptodate(page);
+	}
+
+	_pagebuf_iodone(pb, 1);
+}
+
+STATIC void
+_pagebuf_end_io_complete_pages(
+	struct buffer_head	*bh,
+	int			uptodate)
+{
+	_end_io_pagebuf(bh, uptodate, 1);
+}
+
+STATIC void
+_pagebuf_end_io_partial_pages(
+	struct buffer_head	*bh,
+	int			uptodate)
+{
+	_end_io_pagebuf(bh, uptodate, 0);
+}
+
+/*
+ *	Handling of buftargs.
+ */
+
+/*
+ * Wait for any bufs with callbacks that have been submitted but
+ * have not yet returned... walk the hash list for the target.
+ */
+void
+xfs_wait_buftarg(
+	xfs_buftarg_t *target)
+{
+	xfs_buf_t	*pb, *n;
+	pb_hash_t	*h;
+	int		i;
+
+	for (i = 0; i < NHASH; i++) {
+		h = &pbhash[i];
+again:
+		spin_lock(&h->pb_hash_lock);
+		list_for_each_entry_safe(pb, n, &h->pb_hash, pb_hash_list) {
+			if (pb->pb_target == target &&
+					!(pb->pb_flags & PBF_FS_MANAGED)) {
+				spin_unlock(&h->pb_hash_lock);
+				delay(100);
+				goto again;
+			}
+		}
+		spin_unlock(&h->pb_hash_lock);
+	}
+}
+
+void
+xfs_free_buftarg(
+	xfs_buftarg_t		*btp,
+	int			external)
+{
+	xfs_flush_buftarg(btp, 1);
+	if (external)
+		xfs_blkdev_put(btp->pbr_bdev);
+	iput(btp->pbr_mapping->host);
+	kmem_free(btp, sizeof(*btp));
+}
+
+void
+xfs_incore_relse(
+	xfs_buftarg_t		*btp,
+	int			delwri_only,
+	int			wait)
+{
+	destroy_buffers(btp->pbr_kdev);
+	truncate_inode_pages(btp->pbr_mapping, 0LL);
+}
+
+int
+xfs_setsize_buftarg(
+	xfs_buftarg_t		*btp,
+	unsigned int		blocksize,
+	unsigned int		sectorsize)
+{
+	btp->pbr_bsize = blocksize;
+	btp->pbr_sshift = ffs(sectorsize) - 1;
+	btp->pbr_smask = sectorsize - 1;
+
+	if (set_blocksize(btp->pbr_kdev, sectorsize)) {
+		printk(KERN_WARNING
+			"XFS: Cannot set_blocksize to %u on device 0x%x\n",
+			sectorsize, kdev_t_to_nr(btp->pbr_kdev));
+		return EINVAL;
+	}
+	return 0;
+}
+
+STATIC int
+xfs_mapping_buftarg(
+	xfs_buftarg_t		*btp,
+	struct block_device	*bdev)
+{
+	kdev_t			kdev;
+	struct inode		*inode;
+	struct address_space	*mapping;
+	static struct address_space_operations mapping_aops = {
+		.sync_page = block_sync_page,
+	};
+
+	kdev = to_kdev_t(bdev->bd_dev);
+	inode = new_inode(bdev->bd_inode->i_sb);
+	if (!inode) {
+		printk(KERN_WARNING
+			"XFS: Cannot allocate mapping inode for device %s\n",
+			XFS_BUFTARG_NAME(btp));
+		return ENOMEM;
+	}
+	inode->i_mode = S_IFBLK;
+	inode->i_dev  = kdev;
+	inode->i_rdev = kdev;
+	inode->i_bdev = bdev;
+	mapping = &inode->i_data;
+	mapping->a_ops = &mapping_aops;
+	mapping->gfp_mask = GFP_KERNEL;
+	btp->pbr_mapping = mapping;
+	return 0;
+}
+
+xfs_buftarg_t *
+xfs_alloc_buftarg(
+	struct block_device	*bdev)
+{
+	xfs_buftarg_t		*btp;
+	kdev_t			kdev;
+
+	btp = kmem_zalloc(sizeof(*btp), KM_SLEEP);
+
+	kdev = to_kdev_t(bdev->bd_dev);
+	btp->pbr_dev =  bdev->bd_dev;
+	btp->pbr_kdev = kdev;
+	btp->pbr_bdev = bdev;
+	switch (MAJOR(btp->pbr_dev)) {
+	case MD_MAJOR:
+	case EVMS_MAJOR:
+		btp->pbr_flags = PBR_ALIGNED_ONLY;
+		break;
+	case LOOP_MAJOR:
+	case LVM_BLK_MAJOR:
+		btp->pbr_flags = PBR_SECTOR_ONLY;
+		break;
+	}
+	if (xfs_setsize_buftarg(btp, PAGE_CACHE_SIZE, get_hardsect_size(kdev)))
+		goto error;
+	if (xfs_mapping_buftarg(btp, bdev))
+		goto error;
+	return btp;
+
+error:
+	kmem_free(btp, sizeof(*btp));
+	return NULL;
+}
+
+/*
+ * Initiate I/O on part of a page we are interested in
+ */
+STATIC int
+_pagebuf_page_io(
+	struct page		*page,	/* Page structure we are dealing with */
+	xfs_buftarg_t		*pbr,	/* device parameters (bsz, ssz, dev) */
+	xfs_buf_t		*pb,	/* pagebuf holding it, can be NULL */
+	xfs_daddr_t		bn,	/* starting block number */
+	size_t			pg_offset,	/* starting offset in page */
+	size_t			pg_length,	/* count of data to process */
+	int			rw,	/* read/write operation */
+	int			flush)
+{
+	size_t			sector;
+	size_t			blk_length = 0;
+	struct buffer_head	*bh, *head, *bufferlist[MAX_BUF_PER_PAGE];
+	int			sector_shift = pbr->pbr_sshift;
+	int			i = 0, cnt = 0;
+	int			public_bh = 0;
+	int			multi_ok;
+
+	if ((pbr->pbr_bsize < PAGE_CACHE_SIZE) &&
+	    !(pb->pb_flags & _PBF_PRIVATE_BH)) {
+		int		cache_ok;
+
+		cache_ok = !((pb->pb_flags & PBF_FORCEIO) || (rw == WRITE));
+		public_bh = multi_ok = 1;
+		sector = 1 << sector_shift;
+
+		ASSERT(PageLocked(page));
+		if (!page_has_buffers(page))
+			create_empty_buffers(page, pbr->pbr_kdev, sector);
+
+		i = sector >> BBSHIFT;
+		bn -= (pg_offset >> BBSHIFT);
+
+		/* Find buffer_heads belonging to just this pagebuf */
+		bh = head = page_buffers(page);
+		do {
+			if (buffer_uptodate(bh) && cache_ok)
+				continue;
+			if (blk_length < pg_offset)
+				continue;
+			if (blk_length >= pg_offset + pg_length)
+				break;
+
+			lock_buffer(bh);
+			get_bh(bh);
+			bh->b_size = sector;
+			bh->b_blocknr = bn;
+			bufferlist[cnt++] = bh;
+
+		} while ((bn += i),
+			 (blk_length += sector),
+			  (bh = bh->b_this_page) != head);
+
+		goto request;
+	}
+
+	/* Calculate the block offsets and length we will be using */
+	if (pg_offset) {
+		size_t		block_offset;
+
+		block_offset = pg_offset >> sector_shift;
+		block_offset = pg_offset - (block_offset << sector_shift);
+		blk_length = (pg_length + block_offset + pbr->pbr_smask) >>
+								sector_shift;
+	} else {
+		blk_length = (pg_length + pbr->pbr_smask) >> sector_shift;
+	}
+
+	/* This will attempt to make a request bigger than the sector
+	 * size if we are well aligned.
+	 */
+	switch (pb->pb_target->pbr_flags) {
+	case 0:
+		sector = blk_length << sector_shift;
+		blk_length = 1;
+		break;
+	case PBR_ALIGNED_ONLY:
+		if ((pg_offset == 0) && (pg_length == PAGE_CACHE_SIZE) &&
+		    (((unsigned int) bn) & BN_ALIGN_MASK) == 0) {
+			sector = blk_length << sector_shift;
+			blk_length = 1;
+			break;
+		}
+	case PBR_SECTOR_ONLY:
+		/* Fallthrough, same as default */
+	default:
+		sector = 1 << sector_shift;
+	}
+
+	/* If we are doing I/O larger than the bh->b_size field then
+	 * we need to split this request up.
+	 */
+	while (sector > ((1ULL << NBBY * sizeof(bh->b_size)) - 1)) {
+		sector >>= 1;
+		blk_length++;
+	}
+
+	multi_ok = (blk_length != 1);
+	i = sector >> BBSHIFT;
+
+	for (; blk_length > 0; bn += i, blk_length--, pg_offset += sector) {
+		bh = kmem_cache_alloc(bh_cachep, SLAB_NOFS);
+		if (!bh)
+			bh = _pagebuf_get_prealloc_bh();
+		memset(bh, 0, sizeof(*bh));
+		bh->b_blocknr = bn;
+		bh->b_size = sector;
+		bh->b_dev = pbr->pbr_kdev;
+		set_buffer_locked(bh);
+		set_bh_page(bh, page, pg_offset);
+		init_waitqueue_head(&bh->b_wait);
+		atomic_set(&bh->b_count, 1);
+		bufferlist[cnt++] = bh;
+	}
+
+request:
+	if (cnt) {
+		void	(*callback)(struct buffer_head *, int);
+
+		callback = (multi_ok && public_bh) ?
+				_pagebuf_end_io_partial_pages :
+				_pagebuf_end_io_complete_pages;
+
+		/* Account for additional buffers in progress */
+		atomic_add(cnt, &pb->pb_io_remaining);
+
+#ifdef RQ_WRITE_ORDERED
+		if (flush)
+			set_bit(BH_Ordered_Flush, &bufferlist[cnt-1]->b_state);
+#endif
+
+		for (i = 0; i < cnt; i++) {
+			bh = bufferlist[i];
+			init_buffer(bh, callback, pb);
+			bh->b_rdev = bh->b_dev;
+			bh->b_rsector = bh->b_blocknr;
+			set_buffer_mapped(bh);
+			set_buffer_async(bh);
+			set_buffer_req(bh);
+			if (rw == WRITE)
+				set_buffer_uptodate(bh);
+			generic_make_request(rw, bh);
+		}
+		return 0;
+	}
+
+	/*
+	 * We have no I/O to submit, let the caller know that
+	 * we have skipped over this page entirely.
+	 */
+	return 1;
+}
+
+STATIC void
+_pagebuf_page_apply(
+	xfs_buf_t		*pb,
+	loff_t			offset,
+	struct page		*page,
+	size_t			pg_offset,
+	size_t			pg_length,
+	int			last)
+{
+	xfs_daddr_t		bn = pb->pb_bn;
+	xfs_buftarg_t		*pbr = pb->pb_target;
+	loff_t			pb_offset;
+	int			status, locking;
+
+	ASSERT(page);
+	ASSERT(pb->pb_flags & (PBF_READ|PBF_WRITE));
+
+	if ((pbr->pbr_bsize == PAGE_CACHE_SIZE) &&
+	    (pb->pb_buffer_length < PAGE_CACHE_SIZE) &&
+	    (pb->pb_flags & PBF_READ) && pb->pb_locked) {
+		bn -= (pb->pb_offset >> BBSHIFT);
+		pg_offset = 0;
+		pg_length = PAGE_CACHE_SIZE;
+	} else {
+		pb_offset = offset - pb->pb_file_offset;
+		if (pb_offset) {
+			bn += (pb_offset + BBMASK) >> BBSHIFT;
+		}
+	}
+
+	locking = _pagebuf_iolocked(pb);
+	if (pb->pb_flags & PBF_WRITE) {
+		if (locking && !pb->pb_locked)
+			lock_page(page);
+		status = _pagebuf_page_io(page, pbr, pb, bn,
+				pg_offset, pg_length, WRITE,
+				last && (pb->pb_flags & PBF_FLUSH));
+	} else {
+		status = _pagebuf_page_io(page, pbr, pb, bn,
+				pg_offset, pg_length, READ, 0);
+	}
+	if (status && locking && !(pb->pb_target->pbr_bsize < PAGE_CACHE_SIZE))
+		unlock_page(page);
+}
+
+/*
+ *	pagebuf_iorequest -- the core I/O request routine.
+ */
+int
+pagebuf_iorequest(			/* start real I/O		*/
+	xfs_buf_t		*pb)	/* buffer to convey to device	*/
+{
+	PB_TRACE(pb, "iorequest", 0);
+
+	if (pb->pb_flags & PBF_DELWRI) {
+		pagebuf_delwri_queue(pb, 1);
+		return 0;
+	}
+
+	if (pb->pb_flags & PBF_WRITE) {
+		_pagebuf_wait_unpin(pb);
+	}
+
+	pagebuf_hold(pb);
+
+	/* Set the count to 1 initially, this will stop an I/O
+	 * completion callout which happens before we have started
+	 * all the I/O from calling pagebuf_iodone too early.
+	 */
+	atomic_set(&pb->pb_io_remaining, 1);
+	_pagebuf_ioapply(pb);
+	_pagebuf_iodone(pb, 0);
+
+	pagebuf_rele(pb);
+	return 0;
+}
+
+/*
+ *	pagebuf_iowait
+ *
+ *	pagebuf_iowait waits for I/O to complete on the buffer supplied.
+ *	It returns immediately if no I/O is pending.  In any case, it returns
+ *	the error code, if any, or 0 if there is no error.
+ */
+int
+pagebuf_iowait(
+	xfs_buf_t		*pb)
+{
+	PB_TRACE(pb, "iowait", 0);
+	if (atomic_read(&pb->pb_io_remaining))
+		run_task_queue(&tq_disk);
+	if ((pb->pb_flags & PBF_FS_DATAIOD))
+		pagebuf_runall_queues(pagebuf_dataiodone_tq);
+	down(&pb->pb_iodonesema);
+	PB_TRACE(pb, "iowaited", (long)pb->pb_error);
+	return pb->pb_error;
+}
+
+caddr_t
+pagebuf_offset(
+	xfs_buf_t		*pb,
+	size_t			offset)
+{
+	struct page		*page;
+
+	offset += pb->pb_offset;
+
+	page = pb->pb_pages[offset >> PAGE_CACHE_SHIFT];
+	return (caddr_t) page_address(page) + (offset & (PAGE_CACHE_SIZE - 1));
+}
+
+/*
+ *	pagebuf_iomove
+ *
+ *	Move data into or out of a buffer.
+ */
+void
+pagebuf_iomove(
+	xfs_buf_t		*pb,	/* buffer to process		*/
+	size_t			boff,	/* starting buffer offset	*/
+	size_t			bsize,	/* length to copy		*/
+	caddr_t			data,	/* data address			*/
+	page_buf_rw_t		mode)	/* read/write flag		*/
+{
+	size_t			bend, cpoff, csize;
+	struct page		*page;
+
+	bend = boff + bsize;
+	while (boff < bend) {
+		page = pb->pb_pages[page_buf_btoct(boff + pb->pb_offset)];
+		cpoff = page_buf_poff(boff + pb->pb_offset);
+		csize = min_t(size_t,
+			      PAGE_CACHE_SIZE-cpoff, pb->pb_count_desired-boff);
+
+		ASSERT(((csize + cpoff) <= PAGE_CACHE_SIZE));
+
+		switch (mode) {
+		case PBRW_ZERO:
+			memset(page_address(page) + cpoff, 0, csize);
+			break;
+		case PBRW_READ:
+			memcpy(data, page_address(page) + cpoff, csize);
+			break;
+		case PBRW_WRITE:
+			memcpy(page_address(page) + cpoff, data, csize);
+		}
+
+		boff += csize;
+		data += csize;
+	}
+}
+
+/*
+ *	_pagebuf_ioapply
+ *
+ *	Applies _pagebuf_page_apply to each page of the xfs_buf_t.
+ */
+STATIC void
+_pagebuf_ioapply(			/* apply function to pages	*/
+	xfs_buf_t		*pb)	/* buffer to examine		*/
+{
+	int			index;
+	loff_t			buffer_offset = pb->pb_file_offset;
+	size_t			buffer_len = pb->pb_count_desired;
+	size_t			page_offset, len;
+	size_t			cur_offset, cur_len;
+
+	cur_offset = pb->pb_offset;
+	cur_len = buffer_len;
+
+	if (!pb->pb_locked && !(pb->pb_flags & PBF_DIRECTIO) &&
+	    (pb->pb_target->pbr_bsize < PAGE_CACHE_SIZE)) {
+		for (index = 0; index < pb->pb_page_count; index++)
+			lock_page(pb->pb_pages[index]);
+		pb->pb_locked = 1;
+	}
+
+	for (index = 0; index < pb->pb_page_count; index++) {
+		if (cur_len == 0)
+			break;
+		if (cur_offset >= PAGE_CACHE_SIZE) {
+			cur_offset -= PAGE_CACHE_SIZE;
+			continue;
+		}
+
+		page_offset = cur_offset;
+		cur_offset = 0;
+
+		len = PAGE_CACHE_SIZE - page_offset;
+		if (len > cur_len)
+			len = cur_len;
+		cur_len -= len;
+
+		_pagebuf_page_apply(pb, buffer_offset,
+				pb->pb_pages[index], page_offset, len,
+				index + 1 == pb->pb_page_count);
+		buffer_offset += len;
+		buffer_len -= len;
+	}
+
+	/*
+	 * Run the block device task queue here, while we have
+	 * a hold on the pagebuf (important to have that hold).
+	 */
+	if (pb->pb_flags & _PBF_RUN_QUEUES) {
+		pb->pb_flags &= ~_PBF_RUN_QUEUES;
+		if (atomic_read(&pb->pb_io_remaining) > 1)
+			run_task_queue(&tq_disk);
+	}
+}
+
+
+/*
+ * Delayed write buffer list handling
+ */
+
+STATIC LIST_HEAD(pbd_delwrite_queue);
+STATIC spinlock_t pbd_delwrite_lock = SPIN_LOCK_UNLOCKED;
+
+STATIC void
+pagebuf_delwri_queue(
+	xfs_buf_t		*pb,
+	int			unlock)
+{
+	PB_TRACE(pb, "delwri_q", (long)unlock);
+	ASSERT(pb->pb_flags & PBF_DELWRI);
+
+	spin_lock(&pbd_delwrite_lock);
+	/* If already in the queue, dequeue and place at tail */
+	if (!list_empty(&pb->pb_list)) {
+		if (unlock)
+			atomic_dec(&pb->pb_hold);
+		list_del(&pb->pb_list);
+	}
+
+	list_add_tail(&pb->pb_list, &pbd_delwrite_queue);
+	pb->pb_queuetime = jiffies;
+	spin_unlock(&pbd_delwrite_lock);
+
+	if (unlock)
+		pagebuf_unlock(pb);
+}
+
+void
+pagebuf_delwri_dequeue(
+	xfs_buf_t		*pb)
+{
+	int			dequeued = 0;
+
+	spin_lock(&pbd_delwrite_lock);
+	if ((pb->pb_flags & PBF_DELWRI) && !list_empty(&pb->pb_list)) {
+		list_del_init(&pb->pb_list);
+		dequeued = 1;
+	}
+	pb->pb_flags &= ~PBF_DELWRI;
+	spin_unlock(&pbd_delwrite_lock);
+
+	if (dequeued)
+		pagebuf_rele(pb);
+
+	PB_TRACE(pb, "delwri_dq", (long)dequeued);
+}
+
+
+/*
+ * The pagebuf iodone daemons
+ */
+
+STATIC int
+pagebuf_iodone_daemon(
+	void			*__bind_cpu,
+	const char		*name,
+	int			pagebuf_daemons[],
+	struct list_head	pagebuf_iodone_tq[],
+	wait_queue_head_t	pagebuf_iodone_wait[])
+{
+	int			bind_cpu, cpu;
+	DECLARE_WAITQUEUE	(wait, current);
+
+	bind_cpu = (int) (long)__bind_cpu;
+	cpu = CPU_TO_DAEMON(cpu_logical_map(bind_cpu));
+
+	/*  Set up the thread  */
+	daemonize();
+
+	/* Avoid signals */
+	sigmask_lock();
+	sigfillset(&current->blocked);
+	__recalc_sigpending(current);
+	sigmask_unlock();
+
+	/* Migrate to the right CPU */
+	migrate_to_cpu(cpu);
+#ifdef __HAVE_NEW_SCHEDULER
+	if (smp_processor_id() != cpu)
+		BUG();
+#else
+	while (smp_processor_id() != cpu)
+		schedule();
+#endif
+
+	sprintf(current->comm, "%s/%d", name, bind_cpu);
+	INIT_LIST_HEAD(&pagebuf_iodone_tq[cpu]);
+	init_waitqueue_head(&pagebuf_iodone_wait[cpu]);
+	__set_current_state(TASK_INTERRUPTIBLE);
+	mb();
+
+	pagebuf_daemons[cpu] = 1;
+
+	for (;;) {
+		add_wait_queue(&pagebuf_iodone_wait[cpu], &wait);
+
+		if (TQ_ACTIVE(pagebuf_iodone_tq[cpu]))
+			__set_task_state(current, TASK_RUNNING);
+		schedule();
+		remove_wait_queue(&pagebuf_iodone_wait[cpu], &wait);
+		run_task_queue(&pagebuf_iodone_tq[cpu]);
+		if (pagebuf_daemons[cpu] == 0)
+			break;
+		__set_current_state(TASK_INTERRUPTIBLE);
+	}
+
+	pagebuf_daemons[cpu] = -1;
+	wake_up_interruptible(&pagebuf_iodone_wait[cpu]);
+	return 0;
+}
+
+STATIC void
+pagebuf_runall_queues(
+	struct list_head	pagebuf_iodone_tq[])
+{
+	int	pcpu, cpu;
+
+	for (cpu = 0; cpu < min(smp_num_cpus, MAX_IO_DAEMONS); cpu++) {
+		pcpu = CPU_TO_DAEMON(cpu_logical_map(cpu));
+
+		run_task_queue(&pagebuf_iodone_tq[pcpu]);
+	}
+}
+
+STATIC int
+pagebuf_logiodone_daemon(
+	void			*__bind_cpu)
+{
+	return pagebuf_iodone_daemon(__bind_cpu, "xfslogd", pb_logio_daemons,
+			pagebuf_logiodone_tq, pagebuf_logiodone_wait);
+}
+
+STATIC int
+pagebuf_dataiodone_daemon(
+	void			*__bind_cpu)
+{
+	return pagebuf_iodone_daemon(__bind_cpu, "xfsdatad", pb_dataio_daemons,
+			pagebuf_dataiodone_tq, pagebuf_dataiodone_wait);
+}
+
+
+/* Defines for pagebuf daemon */
+STATIC DECLARE_COMPLETION(pagebuf_daemon_done);
+STATIC struct task_struct *pagebuf_daemon_task;
+STATIC int pagebuf_daemon_active;
+STATIC int force_flush;
+
+
+STATIC int
+pagebuf_daemon_wakeup(
+	int			priority,
+	unsigned int		mask)
+{
+	force_flush = 1;
+	barrier();
+	wake_up_process(pagebuf_daemon_task);
+	return 0;
+}
+
+STATIC int
+pagebuf_daemon(
+	void			*data)
+{
+	struct list_head	tmp;
+	unsigned long		age;
+	xfs_buf_t		*pb, *n;
+	int			count;
+
+	/*  Set up the thread  */
+	daemonize();
+
+	/* Mark it active */
+	pagebuf_daemon_task = current;
+	pagebuf_daemon_active = 1;
+	barrier();
+
+	/* Avoid signals */
+	sigmask_lock();
+	sigfillset(&current->blocked);
+	__recalc_sigpending(current);
+	sigmask_unlock();
+
+	strcpy(current->comm, "xfsbufd");
+	current->flags |= PF_MEMALLOC;
+
+	INIT_LIST_HEAD(&tmp);
+	do {
+		set_current_state(TASK_INTERRUPTIBLE);
+		schedule_timeout((xfs_buf_timer_centisecs * HZ) / 100);
+
+		count = 0;
+		age = (xfs_buf_age_centisecs * HZ) / 100;
+		spin_lock(&pbd_delwrite_lock);
+		list_for_each_entry_safe(pb, n, &pbd_delwrite_queue, pb_list) {
+			PB_TRACE(pb, "walkq1", (long)pagebuf_ispin(pb));
+			ASSERT(pb->pb_flags & PBF_DELWRI);
+
+			if (!pagebuf_ispin(pb) && !pagebuf_cond_lock(pb)) {
+				if (!force_flush &&
+				    time_before(jiffies,
+						pb->pb_queuetime + age)) {
+					pagebuf_unlock(pb);
+					break;
+				}
+
+				pb->pb_flags &= ~PBF_DELWRI;
+				pb->pb_flags |= PBF_WRITE;
+				list_move(&pb->pb_list, &tmp);
+				count++;
+			}
+		}
+		spin_unlock(&pbd_delwrite_lock);
+
+		while (!list_empty(&tmp)) {
+			pb = list_entry(tmp.next, xfs_buf_t, pb_list);
+			list_del_init(&pb->pb_list);
+			pagebuf_iostrategy(pb);
+		}
+
+		if (as_list_len > 0)
+			purge_addresses();
+		if (count)
+			run_task_queue(&tq_disk);
+
+		force_flush = 0;
+	} while (pagebuf_daemon_active);
+
+	complete_and_exit(&pagebuf_daemon_done, 0);
+}
+
+/*
+ * Go through all incore buffers, and release buffers if they belong to
+ * the given device. This is used in filesystem error handling to
+ * preserve the consistency of its metadata.
+ */
+int
+xfs_flush_buftarg(
+	xfs_buftarg_t		*target,
+	int			wait)
+{
+	struct list_head	tmp;
+	xfs_buf_t		*pb, *n;
+	int			pincount = 0;
+	int			flush_cnt = 0;
+
+	pagebuf_runall_queues(pagebuf_dataiodone_tq);
+	pagebuf_runall_queues(pagebuf_logiodone_tq);
+
+	INIT_LIST_HEAD(&tmp);
+	spin_lock(&pbd_delwrite_lock);
+	list_for_each_entry_safe(pb, n, &pbd_delwrite_queue, pb_list) {
+
+		if (pb->pb_target != target)
+			continue;
+
+		ASSERT(pb->pb_flags & PBF_DELWRI);
+		PB_TRACE(pb, "walkq2", (long)pagebuf_ispin(pb));
+		if (pagebuf_ispin(pb)) {
+			pincount++;
+			continue;
+		}
+
+		pb->pb_flags &= ~PBF_DELWRI;
+		pb->pb_flags |= PBF_WRITE;
+		list_move(&pb->pb_list, &tmp);
+	}
+	spin_unlock(&pbd_delwrite_lock);
+
+	/*
+	 * Dropped the delayed write list lock, now walk the temporary list
+	 */
+	list_for_each_entry_safe(pb, n, &tmp, pb_list) {
+
+		if (wait)
+			pb->pb_flags &= ~PBF_ASYNC;
+		else
+			list_del_init(&pb->pb_list);
+
+		pagebuf_lock(pb);
+		pagebuf_iostrategy(pb);
+
+		if (++flush_cnt > 32) {
+			run_task_queue(&tq_disk);
+			flush_cnt = 0;
+		}
+	}
+
+	run_task_queue(&tq_disk);
+
+	/*
+	 * Remaining list items must be flushed before returning
+	 */
+	while (!list_empty(&tmp)) {
+		pb = list_entry(tmp.next, xfs_buf_t, pb_list);
+
+		list_del_init(&pb->pb_list);
+		
+		xfs_iowait(pb);
+		xfs_buf_relse(pb);
+	}
+
+	return pincount;
+}
+
+STATIC int
+pagebuf_daemon_start(void)
+{
+	int		cpu, pcpu;
+
+	kernel_thread(pagebuf_daemon, NULL, CLONE_FS|CLONE_FILES|CLONE_VM);
+
+	for (cpu = 0; cpu < min(smp_num_cpus, MAX_IO_DAEMONS); cpu++) {
+		pcpu = CPU_TO_DAEMON(cpu_logical_map(cpu));
+
+		if (kernel_thread(pagebuf_logiodone_daemon,
+				(void *)(long) cpu,
+				CLONE_FS|CLONE_FILES|CLONE_VM) < 0) {
+			printk("pagebuf_logiodone daemon failed to start\n");
+		} else {
+			while (!pb_logio_daemons[pcpu])
+				yield();
+		}
+	}
+	for (cpu = 0; cpu < min(smp_num_cpus, MAX_IO_DAEMONS); cpu++) {
+		pcpu = CPU_TO_DAEMON(cpu_logical_map(cpu));
+
+		if (kernel_thread(pagebuf_dataiodone_daemon,
+				(void *)(long) cpu,
+				CLONE_FS|CLONE_FILES|CLONE_VM) < 0) {
+			printk("pagebuf_dataiodone daemon failed to start\n");
+		} else {
+			while (!pb_dataio_daemons[pcpu])
+				yield();
+		}
+	}
+	return 0;
+}
+
+/*
+ * pagebuf_daemon_stop
+ *
+ * Note: do not mark as __exit, it is called from pagebuf_terminate.
+ */
+STATIC void
+pagebuf_daemon_stop(void)
+{
+	int		cpu, pcpu;
+
+	pagebuf_daemon_active = 0;
+	barrier();
+	wait_for_completion(&pagebuf_daemon_done);
+
+	for (pcpu = 0; pcpu < min(smp_num_cpus, MAX_IO_DAEMONS); pcpu++) {
+		cpu = CPU_TO_DAEMON(cpu_logical_map(pcpu));
+
+		pb_logio_daemons[cpu] = 0;
+		wake_up(&pagebuf_logiodone_wait[cpu]);
+		wait_event_interruptible(pagebuf_logiodone_wait[cpu],
+				pb_logio_daemons[cpu] == -1);
+
+		pb_dataio_daemons[cpu] = 0;
+		wake_up(&pagebuf_dataiodone_wait[cpu]);
+		wait_event_interruptible(pagebuf_dataiodone_wait[cpu],
+				pb_dataio_daemons[cpu] == -1);
+	}
+}
+
+/*
+ *	Initialization and Termination
+ */
+
+int __init
+pagebuf_init(void)
+{
+	int			i;
+
+	pagebuf_cache = kmem_cache_create("xfs_buf_t", sizeof(xfs_buf_t), 0,
+			SLAB_HWCACHE_ALIGN, NULL, NULL);
+	if (pagebuf_cache == NULL) {
+		printk("XFS: couldn't init xfs_buf_t cache\n");
+		return -ENOMEM;
+	}
+
+	if (_pagebuf_prealloc_bh(NR_RESERVED_BH) < NR_RESERVED_BH) {
+		printk("XFS: couldn't allocate %d reserved buffers\n",
+			NR_RESERVED_BH);
+		kmem_zone_destroy(pagebuf_cache);
+		return -ENOMEM;
+	}
+	init_waitqueue_head(&pb_resv_bh_wait);
+
+#ifdef PAGEBUF_TRACE
+	pagebuf_trace_buf = ktrace_alloc(PAGEBUF_TRACE_SIZE, KM_SLEEP);
+#endif
+
+	pagebuf_daemon_start();
+
+	pagebuf_shake = kmem_shake_register(pagebuf_daemon_wakeup);
+	if (pagebuf_shake == NULL) {
+		pagebuf_terminate();
+		return -ENOMEM;
+	}
+
+	for (i = 0; i < NHASH; i++) {
+		spin_lock_init(&pbhash[i].pb_hash_lock);
+		INIT_LIST_HEAD(&pbhash[i].pb_hash);
+	}
+
+	return 0;
+}
+
+/*
+ *	pagebuf_terminate.
+ *
+ *	Note: do not mark as __exit, this is also called from the __init code.
+ */
+void
+pagebuf_terminate(void)
+{
+	pagebuf_daemon_stop();
+
+#ifdef PAGEBUF_TRACE
+	ktrace_free(pagebuf_trace_buf);
+#endif
+
+	kmem_zone_destroy(pagebuf_cache);
+	kmem_shake_deregister(pagebuf_shake);
+}
diff --git a/fs/xfs/linux-2.4/xfs_buf.h b/fs/xfs/linux-2.4/xfs_buf.h
new file mode 100644
index 00000000000000..4c1a084b089251
--- /dev/null
+++ b/fs/xfs/linux-2.4/xfs_buf.h
@@ -0,0 +1,634 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+/*
+ * Written by Steve Lord, Jim Mostek, Russell Cattelan at SGI
+ */
+
+#ifndef __XFS_BUF_H__
+#define __XFS_BUF_H__
+
+#include <linux/version.h>
+#include <linux/config.h>
+#include <linux/list.h>
+#include <linux/types.h>
+#include <linux/spinlock.h>
+#include <asm/system.h>
+#include <linux/mm.h>
+#include <linux/fs.h>
+#include <linux/uio.h>
+
+/* nptl patch changes where the sigmask_lock is defined */
+#ifdef CLONE_SIGNAL /* stock */
+#define sigmask_lock()		spin_lock_irq(&current->sigmask_lock);
+#define sigmask_unlock()	spin_unlock_irq(&current->sigmask_lock);
+#define __recalc_sigpending(x)	recalc_sigpending(x)
+#else /* nptl */
+#define sigmask_lock()		spin_lock_irq(&current->sighand->siglock);
+#define sigmask_unlock()	spin_unlock_irq(&current->sighand->siglock);
+#define __recalc_sigpending(x)	recalc_sigpending()
+#endif
+/*
+ *	Base types
+ */
+
+#define XFS_BUF_DADDR_NULL ((xfs_daddr_t) (-1LL))
+
+#define page_buf_ctob(pp)	((pp) * PAGE_CACHE_SIZE)
+#define page_buf_btoc(dd)	(((dd) + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT)
+#define page_buf_btoct(dd)	((dd) >> PAGE_CACHE_SHIFT)
+#define page_buf_poff(aa)	((aa) & ~PAGE_CACHE_MASK)
+
+typedef enum page_buf_rw_e {
+	PBRW_READ = 1,			/* transfer into target memory */
+	PBRW_WRITE = 2,			/* transfer from target memory */
+	PBRW_ZERO = 3			/* Zero target memory */
+} page_buf_rw_t;
+
+
+typedef enum page_buf_flags_e {		/* pb_flags values */
+	PBF_READ = (1 << 0),	/* buffer intended for reading from device */
+	PBF_WRITE = (1 << 1),	/* buffer intended for writing to device   */
+	PBF_MAPPED = (1 << 2),  /* buffer mapped (pb_addr valid)           */
+	PBF_PARTIAL = (1 << 3), /* buffer partially read                   */
+	PBF_ASYNC = (1 << 4),   /* initiator will not wait for completion  */
+	PBF_NONE = (1 << 5),    /* buffer not read at all                  */
+	PBF_DELWRI = (1 << 6),  /* buffer has dirty pages                  */
+	PBF_STALE = (1 << 7),	/* buffer has been staled, do not find it  */
+	PBF_FS_MANAGED = (1 << 8),  /* filesystem controls freeing memory  */
+	PBF_FS_DATAIOD = (1 << 9),  /* schedule IO completion on fs datad  */
+	PBF_FORCEIO = (1 << 10),    /* ignore any cache state		   */
+	PBF_FLUSH = (1 << 11),	    /* flush disk write cache		   */
+	PBF_READ_AHEAD = (1 << 12), /* asynchronous read-ahead		   */
+	PBF_DIRECTIO = (1 << 13),   /* used for a direct IO mapping	   */
+
+	/* flags used only as arguments to access routines */
+	PBF_LOCK = (1 << 14),       /* lock requested			   */
+	PBF_TRYLOCK = (1 << 15),    /* lock requested, but do not wait	   */
+	PBF_DONT_BLOCK = (1 << 16), /* do not block in current thread	   */
+
+	/* flags used only internally */
+	_PBF_PAGE_CACHE = (1 << 17),/* backed by pagecache		   */
+	_PBF_KMEM_ALLOC = (1 << 18),/* backed by kmem_alloc()		   */
+	_PBF_RUN_QUEUES = (1 << 19),/* run block device task queue	   */
+	_PBF_PRIVATE_BH = (1 << 20),/* do not use public buffer heads	   */
+} page_buf_flags_t;
+
+#define PBF_UPDATE (PBF_READ | PBF_WRITE)
+#define PBF_NOT_DONE(pb) (((pb)->pb_flags & (PBF_PARTIAL|PBF_NONE)) != 0)
+#define PBF_DONE(pb) (((pb)->pb_flags & (PBF_PARTIAL|PBF_NONE)) == 0)
+
+#define PBR_SECTOR_ONLY	1	/* only use sector size buffer heads */
+#define PBR_ALIGNED_ONLY 2	/* only use aligned I/O */
+
+typedef struct xfs_buftarg {
+	int			pbr_flags;
+	dev_t			pbr_dev;
+	kdev_t			pbr_kdev;
+	struct block_device	*pbr_bdev;
+	struct address_space	*pbr_mapping;
+	unsigned int		pbr_bsize;
+	unsigned int		pbr_sshift;
+	size_t			pbr_smask;
+} xfs_buftarg_t;
+
+/*
+ *	xfs_buf_t:  Buffer structure for page cache-based buffers
+ *
+ * This buffer structure is used by the page cache buffer management routines
+ * to refer to an assembly of pages forming a logical buffer.  The actual I/O
+ * is performed with buffer_head structures, as required by drivers.
+ * 
+ * The buffer structure is used on temporary basis only, and discarded when
+ * released.  The real data storage is recorded in the page cache.  Metadata is
+ * hashed to the block device on which the file system resides.
+ */
+
+struct xfs_buf;
+
+/* call-back function on I/O completion */
+typedef void (*page_buf_iodone_t)(struct xfs_buf *);
+/* call-back function on I/O completion */
+typedef void (*page_buf_relse_t)(struct xfs_buf *);
+/* pre-write function */
+typedef int (*page_buf_bdstrat_t)(struct xfs_buf *);
+
+#define PB_PAGES	4
+
+typedef struct xfs_buf {
+	struct semaphore	pb_sema;	/* semaphore for lockables  */
+	unsigned long		pb_queuetime;	/* time buffer was queued   */
+	atomic_t		pb_pin_count;	/* pin count		    */
+	wait_queue_head_t	pb_waiters;	/* unpin waiters	    */
+	struct list_head	pb_list;
+	page_buf_flags_t	pb_flags;	/* status flags */
+	struct list_head	pb_hash_list;
+	xfs_buftarg_t		*pb_target;	/* logical object */
+	atomic_t		pb_hold;	/* reference count */
+	xfs_daddr_t		pb_bn;		/* block number for I/O */
+	loff_t			pb_file_offset;	/* offset in file */
+	size_t			pb_buffer_length; /* size of buffer in bytes */
+	size_t			pb_count_desired; /* desired transfer size */
+	void			*pb_addr;	/* virtual address of buffer */
+	struct tq_struct	pb_iodone_sched;
+	atomic_t		pb_io_remaining;/* #outstanding I/O requests */
+	page_buf_iodone_t	pb_iodone;	/* I/O completion function */
+	page_buf_relse_t	pb_relse;	/* releasing function */
+	page_buf_bdstrat_t	pb_strat;	/* pre-write function */
+	struct semaphore	pb_iodonesema;	/* Semaphore for I/O waiters */
+	void			*pb_fspriv;
+	void			*pb_fspriv2;
+	void			*pb_fspriv3;
+	unsigned short		pb_error;	/* error code on I/O */
+	unsigned short		pb_page_count;	/* size of page array */
+	unsigned short		pb_offset;	/* page offset in first page */
+	unsigned char		pb_locked;	/* page array is locked */
+	unsigned char		pb_hash_index;	/* hash table index	*/
+	struct page		**pb_pages;	/* array of page pointers */
+	struct page		*pb_page_array[PB_PAGES]; /* inline pages */
+#ifdef PAGEBUF_LOCK_TRACKING
+	int			pb_last_holder;
+#endif
+} xfs_buf_t;
+
+
+/* Finding and Reading Buffers */
+
+extern xfs_buf_t *_pagebuf_find(	/* find buffer for block if	*/
+					/* the block is in memory	*/
+		xfs_buftarg_t *,	/* inode for block		*/
+		loff_t,			/* starting offset of range	*/
+		size_t,			/* length of range		*/
+		page_buf_flags_t,	/* PBF_LOCK			*/
+	        xfs_buf_t *);		/* newly allocated buffer	*/
+
+#define xfs_incore(buftarg,blkno,len,lockit) \
+	_pagebuf_find(buftarg, blkno ,len, lockit, NULL)
+
+extern xfs_buf_t *xfs_buf_get_flags(	/* allocate a buffer		*/
+		xfs_buftarg_t *,	/* inode for buffer		*/
+		loff_t,			/* starting offset of range     */
+		size_t,			/* length of range              */
+		page_buf_flags_t);	/* PBF_LOCK, PBF_READ,		*/
+					/* PBF_ASYNC			*/
+
+#define xfs_buf_get(target, blkno, len, flags) \
+	xfs_buf_get_flags((target), (blkno), (len), PBF_LOCK | PBF_MAPPED)
+
+extern xfs_buf_t *xfs_buf_read_flags(	/* allocate and read a buffer	*/
+		xfs_buftarg_t *,	/* inode for buffer		*/
+		loff_t,			/* starting offset of range	*/
+		size_t,			/* length of range		*/
+		page_buf_flags_t);	/* PBF_LOCK, PBF_ASYNC		*/
+
+#define xfs_buf_read(target, blkno, len, flags) \
+	xfs_buf_read_flags((target), (blkno), (len), PBF_LOCK | PBF_MAPPED)
+
+extern xfs_buf_t *pagebuf_lookup(
+		xfs_buftarg_t *,
+		loff_t,			/* starting offset of range	*/
+		size_t,			/* length of range		*/
+		page_buf_flags_t);	/* PBF_READ, PBF_WRITE,		*/
+					/* PBF_FORCEIO, 		*/
+
+extern xfs_buf_t *pagebuf_get_empty(	/* allocate pagebuf struct with	*/
+					/*  no memory or disk address	*/
+		size_t len,
+		xfs_buftarg_t *);	/* mount point "fake" inode	*/
+
+extern xfs_buf_t *pagebuf_get_no_daddr(/* allocate pagebuf struct	*/
+					/* without disk address		*/
+		size_t len,
+		xfs_buftarg_t *);	/* mount point "fake" inode	*/
+
+extern int pagebuf_associate_memory(
+		xfs_buf_t *,
+		void *,
+		size_t);
+
+extern void pagebuf_hold(		/* increment reference count	*/
+		xfs_buf_t *);		/* buffer to hold		*/
+
+extern void pagebuf_readahead(		/* read ahead into cache	*/
+		xfs_buftarg_t  *,	/* target for buffer (or NULL)	*/
+		loff_t,			/* starting offset of range     */
+		size_t,			/* length of range              */
+		page_buf_flags_t);	/* additional read flags	*/
+
+/* Releasing Buffers */
+
+extern void pagebuf_free(		/* deallocate a buffer		*/
+		xfs_buf_t *);		/* buffer to deallocate		*/
+
+extern void pagebuf_rele(		/* release hold on a buffer	*/
+		xfs_buf_t *);		/* buffer to release		*/
+
+/* Locking and Unlocking Buffers */
+
+extern int pagebuf_cond_lock(		/* lock buffer, if not locked	*/
+					/* (returns -EBUSY if locked)	*/
+		xfs_buf_t *);		/* buffer to lock		*/
+
+extern int pagebuf_lock_value(		/* return count on lock		*/
+		xfs_buf_t *);          /* buffer to check              */
+
+extern int pagebuf_lock(		/* lock buffer                  */
+		xfs_buf_t *);          /* buffer to lock               */
+
+extern void pagebuf_unlock(		/* unlock buffer		*/
+		xfs_buf_t *);		/* buffer to unlock		*/
+
+/* Buffer Read and Write Routines */
+
+extern void pagebuf_iodone(		/* mark buffer I/O complete	*/
+		xfs_buf_t *,		/* buffer to mark		*/
+		int,			/* use data/log helper thread.	*/
+		int);			/* run completion locally, or in
+					 * a helper thread.		*/
+
+extern void pagebuf_ioerror(		/* mark buffer in error	(or not) */
+		xfs_buf_t *,		/* buffer to mark		*/
+		int);			/* error to store (0 if none)	*/
+
+extern int pagebuf_iostart(		/* start I/O on a buffer	*/
+		xfs_buf_t *,		/* buffer to start		*/
+		page_buf_flags_t);	/* PBF_LOCK, PBF_ASYNC,		*/
+					/* PBF_READ, PBF_WRITE,		*/
+					/* PBF_DELWRI			*/
+
+extern int pagebuf_iorequest(		/* start real I/O		*/
+		xfs_buf_t *);		/* buffer to convey to device	*/
+
+extern int pagebuf_iowait(		/* wait for buffer I/O done	*/
+		xfs_buf_t *);		/* buffer to wait on		*/
+
+extern void pagebuf_iomove(		/* move data in/out of pagebuf	*/
+		xfs_buf_t *,		/* buffer to manipulate		*/
+		size_t,			/* starting buffer offset	*/
+		size_t,			/* length in buffer		*/
+		caddr_t,		/* data pointer			*/
+		page_buf_rw_t);		/* direction			*/
+
+static inline int pagebuf_iostrategy(xfs_buf_t *pb)
+{
+	return pb->pb_strat ? pb->pb_strat(pb) : pagebuf_iorequest(pb);
+}
+
+static inline int pagebuf_geterror(xfs_buf_t *pb)
+{
+	return pb ? pb->pb_error : ENOMEM;
+}
+
+/* Buffer Utility Routines */
+
+extern caddr_t pagebuf_offset(		/* pointer at offset in buffer	*/
+		xfs_buf_t *,		/* buffer to offset into	*/
+		size_t);		/* offset			*/
+
+/* Pinning Buffer Storage in Memory */
+
+extern void pagebuf_pin(		/* pin buffer in memory		*/
+		xfs_buf_t *);		/* buffer to pin		*/
+
+extern void pagebuf_unpin(		/* unpin buffered data		*/
+		xfs_buf_t *);		/* buffer to unpin		*/
+
+extern int pagebuf_ispin(		/* check if buffer is pinned	*/
+		xfs_buf_t *);		/* buffer to check		*/
+
+/* Delayed Write Buffer Routines */
+
+extern void pagebuf_delwri_dequeue(xfs_buf_t *);
+
+/* Buffer Daemon Setup Routines */
+
+extern int pagebuf_init(void);
+extern void pagebuf_terminate(void);
+
+
+#ifdef PAGEBUF_TRACE
+extern ktrace_t *pagebuf_trace_buf;
+extern void pagebuf_trace(
+		xfs_buf_t *,		/* buffer being traced		*/
+		char *,			/* description of operation	*/
+		void *,			/* arbitrary diagnostic value	*/
+		void *);		/* return address		*/
+#else
+# define pagebuf_trace(pb, id, ptr, ra)	do { } while (0)
+#endif
+
+#define pagebuf_target_name(target)	bdevname((target)->pbr_kdev)
+
+/*
+ * Kernel version compatibility macros
+ */
+
+#define page_buffers(page)	((page)->buffers)
+#define page_has_buffers(page)	((page)->buffers)
+#define PageUptodate(x)		Page_Uptodate(x)
+/*
+ * macro tricks to expand the set_buffer_foo() and clear_buffer_foo()
+ * functions.
+ */
+#define BUFFER_FNS(bit, name)						\
+static inline void set_buffer_##name(struct buffer_head *bh)		\
+{									\
+	set_bit(BH_##bit, &(bh)->b_state);				\
+}									\
+static inline void clear_buffer_##name(struct buffer_head *bh)		\
+{									\
+	clear_bit(BH_##bit, &(bh)->b_state);				\
+}									\
+
+/*
+ * Emit the buffer bitops functions.   Note that there are also functions
+ * of the form "mark_buffer_foo()".  These are higher-level functions which
+ * do something in addition to setting a b_state bit.
+ */
+BUFFER_FNS(Uptodate, uptodate)
+BUFFER_FNS(Dirty, dirty)
+BUFFER_FNS(Lock, locked)
+BUFFER_FNS(Req, req)
+BUFFER_FNS(Mapped, mapped)
+BUFFER_FNS(New, new)
+BUFFER_FNS(Async, async)
+BUFFER_FNS(Wait_IO, wait_io)
+BUFFER_FNS(Launder, launder)
+BUFFER_FNS(Sync, sync)
+BUFFER_FNS(Delay, delay)
+
+#define get_seconds()		CURRENT_TIME
+#define i_size_read(inode)	((inode)->i_size)
+#define i_size_write(inode, sz)	((inode)->i_size = (sz))
+
+/* These are just for xfs_syncsub... it sets an internal variable
+ * then passes it to VOP_FLUSH_PAGES or adds the flags to a newly gotten buf_t
+ */
+#define XFS_B_ASYNC		PBF_ASYNC
+#define XFS_B_DELWRI		PBF_DELWRI
+#define XFS_B_READ		PBF_READ
+#define XFS_B_WRITE		PBF_WRITE
+#define XFS_B_STALE		PBF_STALE
+
+#define XFS_BUF_TRYLOCK		PBF_TRYLOCK
+#define XFS_INCORE_TRYLOCK	PBF_TRYLOCK
+#define XFS_BUF_LOCK		PBF_LOCK
+#define XFS_BUF_MAPPED		PBF_MAPPED
+
+#define BUF_BUSY		PBF_DONT_BLOCK
+
+#define XFS_BUF_BFLAGS(x)	((x)->pb_flags)
+#define XFS_BUF_ZEROFLAGS(x)	\
+	((x)->pb_flags &= ~(PBF_READ|PBF_WRITE|PBF_ASYNC|PBF_DELWRI))
+
+#define XFS_BUF_STALE(x)	((x)->pb_flags |= XFS_B_STALE)
+#define XFS_BUF_UNSTALE(x)	((x)->pb_flags &= ~XFS_B_STALE)
+#define XFS_BUF_ISSTALE(x)	((x)->pb_flags & XFS_B_STALE)
+#define XFS_BUF_SUPER_STALE(x)	do {				\
+					XFS_BUF_STALE(x);	\
+					pagebuf_delwri_dequeue(x);	\
+					XFS_BUF_DONE(x);	\
+				} while (0)
+
+#define XFS_BUF_MANAGE		PBF_FS_MANAGED
+#define XFS_BUF_UNMANAGE(x)	((x)->pb_flags &= ~PBF_FS_MANAGED)
+
+#define XFS_BUF_DELAYWRITE(x)	 ((x)->pb_flags |= PBF_DELWRI)
+#define XFS_BUF_UNDELAYWRITE(x)	 pagebuf_delwri_dequeue(x)
+#define XFS_BUF_ISDELAYWRITE(x)	 ((x)->pb_flags & PBF_DELWRI)
+
+#define XFS_BUF_ERROR(x,no)	 pagebuf_ioerror(x,no)
+#define XFS_BUF_GETERROR(x)	 pagebuf_geterror(x)
+#define XFS_BUF_ISERROR(x)	 (pagebuf_geterror(x)?1:0)
+
+#define XFS_BUF_DONE(x)		 ((x)->pb_flags &= ~(PBF_PARTIAL|PBF_NONE))
+#define XFS_BUF_UNDONE(x)	 ((x)->pb_flags |= PBF_PARTIAL|PBF_NONE)
+#define XFS_BUF_ISDONE(x)	 (!(PBF_NOT_DONE(x)))
+
+#define XFS_BUF_BUSY(x)		 ((x)->pb_flags |= PBF_FORCEIO)
+#define XFS_BUF_UNBUSY(x)	 ((x)->pb_flags &= ~PBF_FORCEIO)
+#define XFS_BUF_ISBUSY(x)	 (1)
+
+#define XFS_BUF_ASYNC(x)	 ((x)->pb_flags |= PBF_ASYNC)
+#define XFS_BUF_UNASYNC(x)	 ((x)->pb_flags &= ~PBF_ASYNC)
+#define XFS_BUF_ISASYNC(x)	 ((x)->pb_flags & PBF_ASYNC)
+
+#define XFS_BUF_FLUSH(x)	 ((x)->pb_flags |= PBF_FLUSH)
+#define XFS_BUF_UNFLUSH(x)	 ((x)->pb_flags &= ~PBF_FLUSH)
+#define XFS_BUF_ISFLUSH(x)	 ((x)->pb_flags & PBF_FLUSH)
+
+#define XFS_BUF_SHUT(x)		 printk("XFS_BUF_SHUT not implemented yet\n")
+#define XFS_BUF_UNSHUT(x)	 printk("XFS_BUF_UNSHUT not implemented yet\n")
+#define XFS_BUF_ISSHUT(x)	 (0)
+
+#define XFS_BUF_HOLD(x)		pagebuf_hold(x)
+#define XFS_BUF_READ(x)		((x)->pb_flags |= PBF_READ)
+#define XFS_BUF_UNREAD(x)	((x)->pb_flags &= ~PBF_READ)
+#define XFS_BUF_ISREAD(x)	((x)->pb_flags & PBF_READ)
+
+#define XFS_BUF_WRITE(x)	((x)->pb_flags |= PBF_WRITE)
+#define XFS_BUF_UNWRITE(x)	((x)->pb_flags &= ~PBF_WRITE)
+#define XFS_BUF_ISWRITE(x)	((x)->pb_flags & PBF_WRITE)
+
+#define XFS_BUF_ISUNINITIAL(x)	 (0)
+#define XFS_BUF_UNUNINITIAL(x)	 (0)
+
+#define XFS_BUF_BP_ISMAPPED(bp)	 1
+
+#define XFS_BUF_DATAIO(x)	((x)->pb_flags |= PBF_FS_DATAIOD)
+#define XFS_BUF_UNDATAIO(x)	((x)->pb_flags &= ~PBF_FS_DATAIOD)
+
+#define XFS_BUF_IODONE_FUNC(buf)	(buf)->pb_iodone
+#define XFS_BUF_SET_IODONE_FUNC(buf, func)	\
+			(buf)->pb_iodone = (func)
+#define XFS_BUF_CLR_IODONE_FUNC(buf)		\
+			(buf)->pb_iodone = NULL
+#define XFS_BUF_SET_BDSTRAT_FUNC(buf, func)	\
+			(buf)->pb_strat = (func)
+#define XFS_BUF_CLR_BDSTRAT_FUNC(buf)		\
+			(buf)->pb_strat = NULL
+
+#define XFS_BUF_FSPRIVATE(buf, type)		\
+			((type)(buf)->pb_fspriv)
+#define XFS_BUF_SET_FSPRIVATE(buf, value)	\
+			(buf)->pb_fspriv = (void *)(value)
+#define XFS_BUF_FSPRIVATE2(buf, type)		\
+			((type)(buf)->pb_fspriv2)
+#define XFS_BUF_SET_FSPRIVATE2(buf, value)	\
+			(buf)->pb_fspriv2 = (void *)(value)
+#define XFS_BUF_FSPRIVATE3(buf, type)		\
+			((type)(buf)->pb_fspriv3)
+#define XFS_BUF_SET_FSPRIVATE3(buf, value)	\
+			(buf)->pb_fspriv3  = (void *)(value)
+#define XFS_BUF_SET_START(buf)
+
+#define XFS_BUF_SET_BRELSE_FUNC(buf, value) \
+			(buf)->pb_relse = (value)
+
+#define XFS_BUF_PTR(bp)		(xfs_caddr_t)((bp)->pb_addr)
+
+extern inline xfs_caddr_t xfs_buf_offset(xfs_buf_t *bp, size_t offset)
+{
+	if (bp->pb_flags & PBF_MAPPED)
+		return XFS_BUF_PTR(bp) + offset;
+	return (xfs_caddr_t) pagebuf_offset(bp, offset);
+}
+
+#define XFS_BUF_SET_PTR(bp, val, count)		\
+				pagebuf_associate_memory(bp, val, count)
+#define XFS_BUF_ADDR(bp)	((bp)->pb_bn)
+#define XFS_BUF_SET_ADDR(bp, blk)		\
+			((bp)->pb_bn = (xfs_daddr_t)(blk))
+#define XFS_BUF_OFFSET(bp)	((bp)->pb_file_offset)
+#define XFS_BUF_SET_OFFSET(bp, off)		\
+			((bp)->pb_file_offset = (off))
+#define XFS_BUF_COUNT(bp)	((bp)->pb_count_desired)
+#define XFS_BUF_SET_COUNT(bp, cnt)		\
+			((bp)->pb_count_desired = (cnt))
+#define XFS_BUF_SIZE(bp)	((bp)->pb_buffer_length)
+#define XFS_BUF_SET_SIZE(bp, cnt)		\
+			((bp)->pb_buffer_length = (cnt))
+#define XFS_BUF_SET_VTYPE_REF(bp, type, ref)
+#define XFS_BUF_SET_VTYPE(bp, type)
+#define XFS_BUF_SET_REF(bp, ref)
+
+#define XFS_BUF_ISPINNED(bp)	pagebuf_ispin(bp)
+
+#define XFS_BUF_VALUSEMA(bp)	pagebuf_lock_value(bp)
+#define XFS_BUF_CPSEMA(bp)	(pagebuf_cond_lock(bp) == 0)
+#define XFS_BUF_VSEMA(bp)	pagebuf_unlock(bp)
+#define XFS_BUF_PSEMA(bp,x)	pagebuf_lock(bp)
+#define XFS_BUF_V_IODONESEMA(bp) up(&bp->pb_iodonesema);
+
+/* setup the buffer target from a buftarg structure */
+#define XFS_BUF_SET_TARGET(bp, target)	\
+		(bp)->pb_target = (target)
+#define XFS_BUF_TARGET(bp)	((bp)->pb_target)
+#define XFS_BUFTARG_NAME(target)	\
+		pagebuf_target_name(target)
+
+#define XFS_BUF_SET_VTYPE_REF(bp, type, ref)
+#define XFS_BUF_SET_VTYPE(bp, type)
+#define XFS_BUF_SET_REF(bp, ref)
+
+static inline int	xfs_bawrite(void *mp, xfs_buf_t *bp)
+{
+	bp->pb_fspriv3 = mp;
+	bp->pb_strat = xfs_bdstrat_cb;
+	pagebuf_delwri_dequeue(bp);
+	return pagebuf_iostart(bp, PBF_WRITE | PBF_ASYNC | _PBF_RUN_QUEUES);
+}
+
+static inline void	xfs_buf_relse(xfs_buf_t *bp)
+{
+	if (!bp->pb_relse)
+		pagebuf_unlock(bp);
+	pagebuf_rele(bp);
+}
+
+#define xfs_bpin(bp)		pagebuf_pin(bp)
+#define xfs_bunpin(bp)		pagebuf_unpin(bp)
+
+#define xfs_buftrace(id, bp)	\
+	    pagebuf_trace(bp, id, NULL, (void *)__builtin_return_address(0))
+
+#define xfs_biodone(pb)		    \
+	    pagebuf_iodone(pb, (pb->pb_flags & PBF_FS_DATAIOD), 0)
+
+#define xfs_biomove(pb, off, len, data, rw) \
+	    pagebuf_iomove((pb), (off), (len), (data), \
+		((rw) == XFS_B_WRITE) ? PBRW_WRITE : PBRW_READ)
+
+#define xfs_biozero(pb, off, len) \
+	    pagebuf_iomove((pb), (off), (len), NULL, PBRW_ZERO)
+
+
+static inline int	XFS_bwrite(xfs_buf_t *pb)
+{
+	int	iowait = (pb->pb_flags & PBF_ASYNC) == 0;
+	int	error = 0;
+
+	if (!iowait)
+		pb->pb_flags |= _PBF_RUN_QUEUES;
+
+	pagebuf_delwri_dequeue(pb);
+	pagebuf_iostrategy(pb);
+	if (iowait) {
+		error = pagebuf_iowait(pb);
+		xfs_buf_relse(pb);
+	}
+	return error;
+}
+
+#define XFS_bdwrite(pb)		     \
+	    pagebuf_iostart(pb, PBF_DELWRI | PBF_ASYNC)
+
+static inline int xfs_bdwrite(void *mp, xfs_buf_t *bp)
+{
+	bp->pb_strat = xfs_bdstrat_cb;
+	bp->pb_fspriv3 = mp;
+
+	return pagebuf_iostart(bp, PBF_DELWRI | PBF_ASYNC);
+}
+
+#define XFS_bdstrat(bp) pagebuf_iorequest(bp)
+
+#define xfs_iowait(pb)	pagebuf_iowait(pb)
+
+#define xfs_baread(target, rablkno, ralen)  \
+	pagebuf_readahead((target), (rablkno), (ralen), PBF_DONT_BLOCK)
+
+#define xfs_buf_get_empty(len, target)	pagebuf_get_empty((len), (target))
+#define xfs_buf_get_noaddr(len, target)	pagebuf_get_no_daddr((len), (target))
+#define xfs_buf_free(bp)		pagebuf_free(bp)
+
+ /*
+  *	Handling of buftargs.
+  */
+ 
+extern xfs_buftarg_t *xfs_alloc_buftarg(struct block_device *);
+extern void xfs_free_buftarg(xfs_buftarg_t *, int);
+extern void xfs_wait_buftarg(xfs_buftarg_t *);
+extern int xfs_setsize_buftarg(xfs_buftarg_t *, unsigned int, unsigned int);
+extern void xfs_incore_relse(xfs_buftarg_t *, int, int);
+extern int xfs_flush_buftarg(xfs_buftarg_t *, int);
+
+#define xfs_getsize_buftarg(buftarg) \
+	block_size((buftarg)->pbr_kdev)
+#define xfs_readonly_buftarg(buftarg) \
+	is_read_only((buftarg)->pbr_kdev)
+#define xfs_binval(buftarg) \
+	xfs_flush_buftarg(buftarg, 1)
+#define XFS_bflush(buftarg) \
+	xfs_flush_buftarg(buftarg, 1)
+
+#endif	/* __XFS_BUF_H__ */
diff --git a/fs/xfs/linux-2.4/xfs_cred.h b/fs/xfs/linux-2.4/xfs_cred.h
new file mode 100644
index 00000000000000..00c45849d41afc
--- /dev/null
+++ b/fs/xfs/linux-2.4/xfs_cred.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_CRED_H__
+#define __XFS_CRED_H__
+
+/*
+ * Credentials
+ */
+typedef struct cred {
+	/* EMPTY */
+} cred_t;
+
+extern struct cred *sys_cred;
+
+/* this is a hack.. (assums sys_cred is the only cred_t in the system) */
+static __inline int capable_cred(cred_t *cr, int cid)
+{
+	return (cr == sys_cred) ? 1 : capable(cid);
+}
+
+#endif  /* __XFS_CRED_H__ */
diff --git a/fs/xfs/linux-2.4/xfs_file.c b/fs/xfs/linux-2.4/xfs_file.c
new file mode 100644
index 00000000000000..e1d0649ef244db
--- /dev/null
+++ b/fs/xfs/linux-2.4/xfs_file.c
@@ -0,0 +1,447 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_sb.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_trans.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_alloc.h"
+#include "xfs_btree.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_error.h"
+#include "xfs_rw.h"
+#include <linux/iobuf.h>
+
+#include <linux/dcache.h>
+#include <linux/smp_lock.h>
+#include <linux/mman.h> /* for PROT_WRITE */
+
+static struct vm_operations_struct linvfs_file_vm_ops;
+
+STATIC inline ssize_t
+__linvfs_read(
+	struct file	*file,
+	char		*buf,
+	int		ioflags,
+	size_t		size,
+	loff_t		*offset)
+{
+	struct inode	*inode = file->f_dentry->d_inode;
+	vnode_t		*vp = LINVFS_GET_VP(inode);
+	ssize_t		rval;
+
+	if (unlikely(file->f_flags & O_DIRECT)) {
+		ioflags |= IO_ISDIRECT;
+		down_read(&inode->i_alloc_sem);
+		VOP_READ(vp, file, buf, size, offset, ioflags, NULL, rval);
+		up_read(&inode->i_alloc_sem);
+	} else {
+		VOP_READ(vp, file, buf, size, offset, ioflags, NULL, rval);
+	}
+
+	return rval;
+}
+
+STATIC ssize_t
+linvfs_read(
+	struct file	*file,
+	char		*buf,
+	size_t		size,
+	loff_t		*offset)
+{
+	return __linvfs_read(file, buf, 0, size, offset);
+}
+
+STATIC ssize_t
+linvfs_read_invis(
+	struct file	*file,
+	char		*buf,
+	size_t		size,
+	loff_t		*offset)
+{
+	return __linvfs_read(file, buf, IO_INVIS, size, offset);
+}
+
+
+STATIC inline ssize_t
+__linvfs_write(
+	struct file	*file,
+	const char	*buf,
+	int		ioflags,
+	size_t		count,
+	loff_t		*ppos)
+{
+	struct inode	*inode = file->f_dentry->d_inode;
+	vnode_t		*vp = LINVFS_GET_VP(inode);
+	loff_t		pos;
+	ssize_t		rval;	/* Use negative errors in this f'n */
+
+	if ((ssize_t) count < 0)
+		return -EINVAL;
+
+	if (!access_ok(VERIFY_READ, buf, count))
+		return -EFAULT;
+
+	pos = *ppos;
+	if (pos < 0)
+		return -EINVAL;
+
+	rval = file->f_error;
+	if (rval) {
+		file->f_error = 0;
+		return rval;
+	}
+
+	/* We allow multiple direct writers in, there is no
+	 * potential call to vmtruncate in that path.
+	 */
+	if (unlikely(file->f_flags & O_DIRECT)) {
+		ioflags |= IO_ISDIRECT;
+		down_read(&inode->i_alloc_sem);
+		VOP_WRITE(vp, file, buf, count, &pos, ioflags, NULL, rval);
+		*ppos = pos;
+		up_read(&inode->i_alloc_sem);
+	} else {
+		down(&inode->i_sem);
+		VOP_WRITE(vp, file, buf, count, &pos, ioflags, NULL, rval);
+		*ppos = pos;
+		up(&inode->i_sem);
+	}
+
+	return rval;
+}
+
+STATIC inline ssize_t
+linvfs_write(
+	struct file	*file,
+	const char	*buf,
+	size_t		count,
+	loff_t		*ppos)
+{
+	return __linvfs_write(file, buf, 0, count, ppos);
+}
+
+STATIC inline ssize_t
+linvfs_write_invis(
+	struct file	*file,
+	const char	*buf,
+	size_t		count,
+	loff_t		*ppos)
+{
+	return __linvfs_write(file, buf, IO_INVIS, count, ppos);
+}
+
+STATIC int
+linvfs_open(
+	struct inode	*inode,
+	struct file	*filp)
+{
+	vnode_t		*vp = LINVFS_GET_VP(inode);
+	int		error;
+
+	if (!(filp->f_flags & O_LARGEFILE) && i_size_read(inode) > MAX_NON_LFS)
+		return -EFBIG;
+
+	ASSERT(vp);
+	VOP_OPEN(vp, NULL, error);
+	return -error;
+}
+
+
+STATIC int
+linvfs_release(
+	struct inode	*inode,
+	struct file	*filp)
+{
+	vnode_t		*vp = LINVFS_GET_VP(inode);
+	int		error = 0;
+
+	if (vp)
+		VOP_RELEASE(vp, error);
+	return -error;
+}
+
+
+STATIC int
+linvfs_fsync(
+	struct file	*filp,
+	struct dentry	*dentry,
+	int		datasync)
+{
+	struct inode	*inode = dentry->d_inode;
+	vnode_t		*vp = LINVFS_GET_VP(inode);
+	int		error;
+	int		flags = FSYNC_WAIT;
+
+	error = fsync_inode_data_buffers(inode);
+	if (error)
+		return error;
+
+	if (datasync)
+		flags |= FSYNC_DATA;
+
+	ASSERT(vp);
+	VOP_FSYNC(vp, flags, NULL, (xfs_off_t)0, (xfs_off_t)-1, error);
+	return -error;
+}
+
+/*
+ * linvfs_readdir maps to VOP_READDIR().
+ * We need to build a uio, cred, ...
+ */
+
+#define nextdp(dp)      ((struct xfs_dirent *)((char *)(dp) + (dp)->d_reclen))
+
+STATIC int
+linvfs_readdir(
+	struct file	*filp,
+	void		*dirent,
+	filldir_t	filldir)
+{
+	int		error = 0;
+	vnode_t		*vp;
+	uio_t		uio;
+	iovec_t		iov;
+	int		eof = 0;
+	caddr_t		read_buf;
+	int		namelen, size = 0;
+	size_t		rlen = PAGE_CACHE_SIZE;
+	xfs_off_t	start_offset, curr_offset;
+	xfs_dirent_t	*dbp = NULL;
+
+	vp = LINVFS_GET_VP(filp->f_dentry->d_inode);
+	ASSERT(vp);
+
+	/* Try fairly hard to get memory */
+	do {
+		if ((read_buf = (caddr_t)kmalloc(rlen, GFP_KERNEL)))
+			break;
+		rlen >>= 1;
+	} while (rlen >= 1024);
+
+	if (read_buf == NULL)
+		return -ENOMEM;
+
+	uio.uio_iov = &iov;
+	uio.uio_segflg = UIO_SYSSPACE;
+	curr_offset = filp->f_pos;
+	if (filp->f_pos != 0x7fffffff)
+		uio.uio_offset = filp->f_pos;
+	else
+		uio.uio_offset = 0xffffffff;
+
+	while (!eof) {
+		uio.uio_resid = iov.iov_len = rlen;
+		iov.iov_base = read_buf;
+		uio.uio_iovcnt = 1;
+
+		start_offset = uio.uio_offset;
+
+		VOP_READDIR(vp, &uio, NULL, &eof, error);
+		if ((uio.uio_offset == start_offset) || error) {
+			size = 0;
+			break;
+		}
+
+		size = rlen - uio.uio_resid;
+		dbp = (xfs_dirent_t *)read_buf;
+		while (size > 0) {
+			namelen = strlen(dbp->d_name);
+
+			if (filldir(dirent, dbp->d_name, namelen,
+					(loff_t) curr_offset & 0x7fffffff,
+					(ino_t) dbp->d_ino,
+					DT_UNKNOWN)) {
+				goto done;
+			}
+			size -= dbp->d_reclen;
+			curr_offset = (loff_t)dbp->d_off /* & 0x7fffffff */;
+			dbp = nextdp(dbp);
+		}
+	}
+done:
+	if (!error) {
+		if (size == 0)
+			filp->f_pos = uio.uio_offset & 0x7fffffff;
+		else if (dbp)
+			filp->f_pos = curr_offset;
+	}
+
+	kfree(read_buf);
+	return -error;
+}
+
+STATIC int
+linvfs_file_mmap(
+	struct file	*filp,
+	struct vm_area_struct *vma)
+{
+	struct inode	*ip = filp->f_dentry->d_inode;
+	vnode_t		*vp = LINVFS_GET_VP(ip);
+	vattr_t		va = { .va_mask = XFS_AT_UPDATIME };
+	int		error;
+
+	if (vp->v_vfsp->vfs_flag & VFS_DMI) {
+		xfs_mount_t	*mp = XFS_VFSTOM(vp->v_vfsp);
+
+		error = -XFS_SEND_MMAP(mp, vma, 0);
+		if (error)
+			return error;
+	}
+
+	vma->vm_ops = &linvfs_file_vm_ops;
+
+	VOP_SETATTR(vp, &va, XFS_AT_UPDATIME, NULL, error);
+	if (!error)
+		vn_revalidate(vp);	/* update Linux inode flags */
+	return 0;
+}
+
+
+STATIC int
+linvfs_ioctl(
+	struct inode	*inode,
+	struct file	*filp,
+	unsigned int	cmd,
+	unsigned long	arg)
+{
+	int		error;
+	vnode_t		*vp = LINVFS_GET_VP(inode);
+
+	unlock_kernel();
+	VOP_IOCTL(vp, inode, filp, 0, cmd, arg, error);
+	VMODIFY(vp);
+	lock_kernel();
+
+	/* NOTE:  some of the ioctl's return positive #'s as a
+	 *	  byte count indicating success, such as
+	 *	  readlink_by_handle.  So we don't "sign flip"
+	 *	  like most other routines.  This means true
+	 *	  errors need to be returned as a negative value.
+	 */
+	return error;
+}
+
+STATIC int
+linvfs_ioctl_invis(
+	struct inode	*inode,
+	struct file	*filp,
+	unsigned int	cmd,
+	unsigned long	arg)
+{
+	int		error;
+	vnode_t		*vp = LINVFS_GET_VP(inode);
+
+	unlock_kernel();
+	VOP_IOCTL(vp, inode, filp, IO_INVIS, cmd, arg, error);
+	VMODIFY(vp);
+	lock_kernel();
+
+	/* NOTE:  some of the ioctl's return positive #'s as a
+	 *	  byte count indicating success, such as
+	 *	  readlink_by_handle.  So we don't "sign flip"
+	 *	  like most other routines.  This means true
+	 *	  errors need to be returned as a negative value.
+	 */
+	return error;
+}
+
+#ifdef HAVE_VMOP_MPROTECT
+STATIC int
+linvfs_mprotect(
+	struct vm_area_struct *vma,
+	unsigned int	newflags)
+{
+	vnode_t		*vp = LINVFS_GET_VP(vma->vm_file->f_dentry->d_inode);
+	int		error = 0;
+
+	if (vp->v_vfsp->vfs_flag & VFS_DMI) {
+		if ((vma->vm_flags & VM_MAYSHARE) &&
+		    (newflags & PROT_WRITE) && !(vma->vm_flags & PROT_WRITE)) {
+			xfs_mount_t	*mp = XFS_VFSTOM(vp->v_vfsp);
+
+			error = XFS_SEND_MMAP(mp, vma, VM_WRITE);
+		    }
+	}
+	return error;
+}
+#endif /* HAVE_VMOP_MPROTECT */
+
+
+struct file_operations linvfs_file_operations = {
+	.llseek		= generic_file_llseek,
+	.read		= linvfs_read,
+	.write		= linvfs_write,
+	.ioctl		= linvfs_ioctl,
+	.mmap		= linvfs_file_mmap,
+	.open		= linvfs_open,
+	.release	= linvfs_release,
+	.fsync		= linvfs_fsync,
+};
+
+struct file_operations linvfs_invis_file_operations = {
+	.llseek		= generic_file_llseek,
+	.read		= linvfs_read_invis,
+	.write		= linvfs_write_invis,
+	.ioctl		= linvfs_ioctl_invis,
+	.mmap		= linvfs_file_mmap,
+	.open		= linvfs_open,
+	.release	= linvfs_release,
+	.fsync		= linvfs_fsync,
+};
+
+
+struct file_operations linvfs_dir_operations = {
+	.read		= generic_read_dir,
+	.readdir	= linvfs_readdir,
+	.ioctl		= linvfs_ioctl,
+	.fsync		= linvfs_fsync,
+};
+
+static struct vm_operations_struct linvfs_file_vm_ops = {
+	.nopage		= filemap_nopage,
+#ifdef HAVE_VMOP_MPROTECT
+	.mprotect	= linvfs_mprotect,
+#endif
+};
diff --git a/fs/xfs/linux-2.4/xfs_fs_subr.c b/fs/xfs/linux-2.4/xfs_fs_subr.c
new file mode 100644
index 00000000000000..69a60ee6140e45
--- /dev/null
+++ b/fs/xfs/linux-2.4/xfs_fs_subr.c
@@ -0,0 +1,126 @@
+/*
+ * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+
+/*
+ * Stub for no-op vnode operations that return error status.
+ */
+int
+fs_noerr(void)
+{
+	return 0;
+}
+
+/*
+ * Operation unsupported under this file system.
+ */
+int
+fs_nosys(void)
+{
+	return ENOSYS;
+}
+
+/*
+ * Stub for inactive, strategy, and read/write lock/unlock.  Does nothing.
+ */
+/* ARGSUSED */
+void
+fs_noval(void)
+{
+}
+
+/*
+ * vnode pcache layer for vnode_tosspages.
+ * 'last' parameter unused but left in for IRIX compatibility
+ */
+void
+fs_tosspages(
+	bhv_desc_t	*bdp,
+	xfs_off_t	first,
+	xfs_off_t	last,
+	int		fiopt)
+{
+	vnode_t		*vp = BHV_TO_VNODE(bdp);
+	struct inode	*ip = LINVFS_GET_IP(vp);
+
+	if (VN_CACHED(vp))
+		truncate_inode_pages(ip->i_mapping, first);
+}
+
+
+/*
+ * vnode pcache layer for vnode_flushinval_pages.
+ * 'last' parameter unused but left in for IRIX compatibility
+ */
+void
+fs_flushinval_pages(
+	bhv_desc_t	*bdp,
+	xfs_off_t	first,
+	xfs_off_t	last,
+	int		fiopt)
+{
+	vnode_t		*vp = BHV_TO_VNODE(bdp);
+	struct inode	*ip = LINVFS_GET_IP(vp);
+
+	if (VN_CACHED(vp)) {
+		filemap_fdatasync(ip->i_mapping);
+		fsync_inode_data_buffers(ip);
+		filemap_fdatawait(ip->i_mapping);
+
+		truncate_inode_pages(ip->i_mapping, first);
+	}
+}
+
+/*
+ * vnode pcache layer for vnode_flush_pages.
+ * 'last' parameter unused but left in for IRIX compatibility
+ */
+int
+fs_flush_pages(
+	bhv_desc_t	*bdp,
+	xfs_off_t	first,
+	xfs_off_t	last,
+	uint64_t	flags,
+	int		fiopt)
+{
+	vnode_t		*vp = BHV_TO_VNODE(bdp);
+	struct inode	*ip = LINVFS_GET_IP(vp);
+
+	if (VN_CACHED(vp)) {
+		filemap_fdatasync(ip->i_mapping);
+		fsync_inode_data_buffers(ip);
+		filemap_fdatawait(ip->i_mapping);
+	}
+
+	return 0;
+}
diff --git a/fs/xfs/linux-2.4/xfs_fs_subr.h b/fs/xfs/linux-2.4/xfs_fs_subr.h
new file mode 100644
index 00000000000000..2db9ddbd456754
--- /dev/null
+++ b/fs/xfs/linux-2.4/xfs_fs_subr.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2000, 2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef	__XFS_SUBR_H__
+#define __XFS_SUBR_H__
+
+/*
+ * Utilities shared among file system implementations.
+ */
+
+struct cred;
+
+extern int	fs_noerr(void);
+extern int	fs_nosys(void);
+extern void	fs_noval(void);
+extern void	fs_tosspages(bhv_desc_t *, xfs_off_t, xfs_off_t, int);
+extern void	fs_flushinval_pages(bhv_desc_t *, xfs_off_t, xfs_off_t, int);
+extern int	fs_flush_pages(bhv_desc_t *, xfs_off_t, xfs_off_t, uint64_t, int);
+
+#endif	/* __XFS_FS_SUBR_H__ */
diff --git a/fs/xfs/linux-2.4/xfs_globals.c b/fs/xfs/linux-2.4/xfs_globals.c
new file mode 100644
index 00000000000000..a07a49fff84d5c
--- /dev/null
+++ b/fs/xfs/linux-2.4/xfs_globals.c
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+/*
+ * This file contains globals needed by XFS that were normally defined
+ * somewhere else in IRIX.
+ */
+
+#include "xfs.h"
+#include "xfs_cred.h"
+#include "xfs_sysctl.h"
+#include "xfs_refcache.h"
+
+/*
+ * System memory size - used to scale certain data structures in XFS.
+ */
+unsigned long xfs_physmem;
+
+/*
+ * Tunable XFS parameters.  xfs_params is required even when CONFIG_SYSCTL=n,
+ * other XFS code uses these values.  Times are measured in centisecs (i.e.
+ * 100ths of a second).
+ */
+xfs_param_t xfs_params = {
+			  /*	MIN	DFLT	MAX	*/
+	.refcache_size	= {	0,	128,	XFS_REFCACHE_SIZE_MAX },
+	.refcache_purge	= {	0,	32,	XFS_REFCACHE_SIZE_MAX },
+	.restrict_chown	= {	0,	1,	1	},
+	.sgid_inherit	= {	0,	0,	1	},
+	.symlink_mode	= {	0,	0,	1	},
+	.panic_mask	= {	0,	0,	127	},
+	.error_level	= {	0,	3,	11	},
+	.syncd_timer	= {	1*100,	30*100,	60*100	},
+	.stats_clear	= {	0,	0,	1	},
+	.inherit_sync	= {	0,	1,	1	},
+	.inherit_nodump	= {	0,	1,	1	},
+	.inherit_noatim = {	0,	1,	1	},
+	.xfs_buf_timer	= {	100/2,	100,	30*100	},
+	.xfs_buf_age	= {	1*100,	15*100,	300*100	},
+	.inherit_nosym	= {	0,	0,	1	},
+	.rotorstep	= {	1,	1,	255	},
+};
+
+/*
+ * Global system credential structure.
+ */
+cred_t sys_cred_val, *sys_cred = &sys_cred_val;
+
diff --git a/fs/xfs/linux-2.4/xfs_globals.h b/fs/xfs/linux-2.4/xfs_globals.h
new file mode 100644
index 00000000000000..e81e2f38a8534b
--- /dev/null
+++ b/fs/xfs/linux-2.4/xfs_globals.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_GLOBALS_H__
+#define __XFS_GLOBALS_H__
+
+/*
+ * This file declares globals needed by XFS that were normally defined
+ * somewhere else in IRIX.
+ */
+
+extern uint64_t	xfs_panic_mask;		/* set to cause more panics */
+extern unsigned long xfs_physmem;
+extern struct cred *sys_cred;
+
+#endif	/* __XFS_GLOBALS_H__ */
diff --git a/fs/xfs/linux-2.4/xfs_ioctl.c b/fs/xfs/linux-2.4/xfs_ioctl.c
new file mode 100644
index 00000000000000..859319fe5ec201
--- /dev/null
+++ b/fs/xfs/linux-2.4/xfs_ioctl.c
@@ -0,0 +1,1254 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+
+#include "xfs_fs.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_alloc.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_bit.h"
+#include "xfs_rtalloc.h"
+#include "xfs_error.h"
+#include "xfs_itable.h"
+#include "xfs_rw.h"
+#include "xfs_acl.h"
+#include "xfs_cap.h"
+#include "xfs_mac.h"
+#include "xfs_attr.h"
+#include "xfs_buf_item.h"
+#include "xfs_utils.h"
+#include "xfs_dfrag.h"
+#include "xfs_fsops.h"
+
+#include <linux/dcache.h>
+#include <linux/iobuf.h>
+
+/*
+ * xfs_find_handle maps from userspace xfs_fsop_handlereq structure to
+ * a file or fs handle.
+ *
+ * XFS_IOC_PATH_TO_FSHANDLE
+ *    returns fs handle for a mount point or path within that mount point
+ * XFS_IOC_FD_TO_HANDLE
+ *    returns full handle for a FD opened in user space
+ * XFS_IOC_PATH_TO_HANDLE
+ *    returns full handle for a path
+ */
+STATIC int
+xfs_find_handle(
+	unsigned int		cmd,
+	unsigned long		arg)
+{
+	int			hsize;
+	xfs_handle_t		handle;
+	xfs_fsop_handlereq_t	hreq;
+	struct inode		*inode;
+	struct vnode		*vp;
+
+	if (copy_from_user(&hreq, (xfs_fsop_handlereq_t *)arg, sizeof(hreq)))
+		return -XFS_ERROR(EFAULT);
+
+	memset((char *)&handle, 0, sizeof(handle));
+
+	switch (cmd) {
+	case XFS_IOC_PATH_TO_FSHANDLE:
+	case XFS_IOC_PATH_TO_HANDLE: {
+		struct nameidata	nd;
+		int			error;
+
+		error = user_path_walk_link(hreq.path, &nd);
+		if (error)
+			return error;
+
+		ASSERT(nd.dentry);
+		ASSERT(nd.dentry->d_inode);
+		inode = igrab(nd.dentry->d_inode);
+		path_release(&nd);
+		break;
+	}
+
+	case XFS_IOC_FD_TO_HANDLE: {
+		struct file	*file;
+
+		file = fget(hreq.fd);
+		if (!file)
+		    return -EBADF;
+
+		ASSERT(file->f_dentry);
+		ASSERT(file->f_dentry->d_inode);
+		inode = igrab(file->f_dentry->d_inode);
+		fput(file);
+		break;
+	}
+
+	default:
+		ASSERT(0);
+		return -XFS_ERROR(EINVAL);
+	}
+
+	if (inode->i_sb->s_magic != XFS_SB_MAGIC) {
+		/* we're not in XFS anymore, Toto */
+		iput(inode);
+		return -XFS_ERROR(EINVAL);
+	}
+
+	/* we need the vnode */
+	vp = LINVFS_GET_VP(inode);
+	if (vp->v_type != VREG && vp->v_type != VDIR && vp->v_type != VLNK) {
+		iput(inode);
+		return -XFS_ERROR(EBADF);
+	}
+
+	/* now we can grab the fsid */
+	memcpy(&handle.ha_fsid, vp->v_vfsp->vfs_altfsid, sizeof(xfs_fsid_t));
+	hsize = sizeof(xfs_fsid_t);
+
+	if (cmd != XFS_IOC_PATH_TO_FSHANDLE) {
+		xfs_inode_t	*ip;
+		bhv_desc_t	*bhv;
+		int		lock_mode;
+
+		/* need to get access to the xfs_inode to read the generation */
+		bhv = vn_bhv_lookup_unlocked(VN_BHV_HEAD(vp), &xfs_vnodeops);
+		ASSERT(bhv);
+		ip = XFS_BHVTOI(bhv);
+		ASSERT(ip);
+		lock_mode = xfs_ilock_map_shared(ip);
+
+		/* fill in fid section of handle from inode */
+		handle.ha_fid.xfs_fid_len = sizeof(xfs_fid_t) -
+					    sizeof(handle.ha_fid.xfs_fid_len);
+		handle.ha_fid.xfs_fid_pad = 0;
+		handle.ha_fid.xfs_fid_gen = ip->i_d.di_gen;
+		handle.ha_fid.xfs_fid_ino = ip->i_ino;
+
+		xfs_iunlock_map_shared(ip, lock_mode);
+
+		hsize = XFS_HSIZE(handle);
+	}
+
+	/* now copy our handle into the user buffer & write out the size */
+	if (copy_to_user((xfs_handle_t *)hreq.ohandle, &handle, hsize) ||
+	    copy_to_user(hreq.ohandlen, &hsize, sizeof(__s32))) {
+		iput(inode);
+		return -XFS_ERROR(EFAULT);
+	}
+
+	iput(inode);
+	return 0;
+}
+
+
+/*
+ * Convert userspace handle data into vnode (and inode).
+ * We [ab]use the fact that all the fsop_handlereq ioctl calls
+ * have a data structure argument whose first component is always
+ * a xfs_fsop_handlereq_t, so we can cast to and from this type.
+ * This allows us to optimise the copy_from_user calls and gives
+ * a handy, shared routine.
+ *
+ * If no error, caller must always VN_RELE the returned vp.
+ */
+STATIC int
+xfs_vget_fsop_handlereq(
+	xfs_mount_t		*mp,
+	struct inode		*parinode,	/* parent inode pointer    */
+	int			cap,		/* capability level for op */
+	unsigned long		arg,		/* userspace data pointer  */
+	unsigned long		size,		/* size of expected struct */
+	/* output arguments */
+	xfs_fsop_handlereq_t	*hreq,
+	vnode_t			**vp,
+	struct inode		**inode)
+{
+	void			*hanp;
+	size_t			hlen;
+	xfs_fid_t		*xfid;
+	xfs_handle_t		*handlep;
+	xfs_handle_t		handle;
+	xfs_inode_t		*ip;
+	struct inode		*inodep;
+	vnode_t			*vpp;
+	xfs_ino_t		ino;
+	__u32			igen;
+	int			error;
+
+	if (!capable(cap))
+		return XFS_ERROR(EPERM);
+
+	/*
+	 * Only allow handle opens under a directory.
+	 */
+	if (!S_ISDIR(parinode->i_mode))
+		return XFS_ERROR(ENOTDIR);
+
+	/*
+	 * Copy the handle down from the user and validate
+	 * that it looks to be in the correct format.
+	 */
+	if (copy_from_user(hreq, (struct xfs_fsop_handlereq *)arg, size))
+		return XFS_ERROR(EFAULT);
+
+	hanp = hreq->ihandle;
+	hlen = hreq->ihandlen;
+	handlep = &handle;
+
+	if (hlen < sizeof(handlep->ha_fsid) || hlen > sizeof(*handlep))
+		return XFS_ERROR(EINVAL);
+	if (copy_from_user(handlep, hanp, hlen))
+		return XFS_ERROR(EFAULT);
+	if (hlen < sizeof(*handlep))
+		memset(((char *)handlep) + hlen, 0, sizeof(*handlep) - hlen);
+	if (hlen > sizeof(handlep->ha_fsid)) {
+		if (handlep->ha_fid.xfs_fid_len !=
+				(hlen - sizeof(handlep->ha_fsid)
+					- sizeof(handlep->ha_fid.xfs_fid_len))
+		    || handlep->ha_fid.xfs_fid_pad)
+			return XFS_ERROR(EINVAL);
+	}
+
+	/*
+	 * Crack the handle, obtain the inode # & generation #
+	 */
+	xfid = (struct xfs_fid *)&handlep->ha_fid;
+	if (xfid->xfs_fid_len == sizeof(*xfid) - sizeof(xfid->xfs_fid_len)) {
+		ino  = xfid->xfs_fid_ino;
+		igen = xfid->xfs_fid_gen;
+	} else {
+		return XFS_ERROR(EINVAL);
+	}
+
+	/*
+	 * Get the XFS inode, building a vnode to go with it.
+	 */
+	error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_SHARED, &ip, 0);
+	if (error)
+		return error;
+	if (ip == NULL)
+		return XFS_ERROR(EIO);
+	if (ip->i_d.di_mode == 0 || ip->i_d.di_gen != igen) {
+		xfs_iput_new(ip, XFS_ILOCK_SHARED);
+		return XFS_ERROR(ENOENT);
+	}
+
+	vpp = XFS_ITOV(ip);
+	inodep = LINVFS_GET_IP(vpp);
+	xfs_iunlock(ip, XFS_ILOCK_SHARED);
+
+	*vp = vpp;
+	*inode = inodep;
+	return 0;
+}
+
+STATIC int
+xfs_open_by_handle(
+	xfs_mount_t		*mp,
+	unsigned long		arg,
+	struct file		*parfilp,
+	struct inode		*parinode)
+{
+	int			error;
+	int			new_fd;
+	int			permflag;
+	struct file		*filp;
+	struct inode		*inode;
+	struct dentry		*dentry;
+	vnode_t			*vp;
+	xfs_fsop_handlereq_t	hreq;
+
+	error = xfs_vget_fsop_handlereq(mp, parinode, CAP_SYS_ADMIN, arg,
+					sizeof(xfs_fsop_handlereq_t),
+					&hreq, &vp, &inode);
+	if (error)
+		return -error;
+
+	/* Restrict xfs_open_by_handle to directories & regular files. */
+	if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode))) {
+		iput(inode);
+		return -XFS_ERROR(EINVAL);
+	}
+
+#if BITS_PER_LONG != 32
+	hreq.oflags |= O_LARGEFILE;
+#endif
+	/* Put open permission in namei format. */
+	permflag = hreq.oflags;
+	if ((permflag+1) & O_ACCMODE)
+		permflag++;
+	if (permflag & O_TRUNC)
+		permflag |= 2;
+
+	if ((!(permflag & O_APPEND) || (permflag & O_TRUNC)) &&
+	    (permflag & FMODE_WRITE) && IS_APPEND(inode)) {
+		iput(inode);
+		return -XFS_ERROR(EPERM);
+	}
+
+	if ((permflag & FMODE_WRITE) && IS_IMMUTABLE(inode)) {
+		iput(inode);
+		return -XFS_ERROR(EACCES);
+	}
+
+	/* Can't write directories. */
+	if ( S_ISDIR(inode->i_mode) && (permflag & FMODE_WRITE)) {
+		iput(inode);
+		return -XFS_ERROR(EISDIR);
+	}
+
+	if ((new_fd = get_unused_fd()) < 0) {
+		iput(inode);
+		return new_fd;
+	}
+
+	dentry = d_alloc_anon(inode);
+	if (dentry == NULL) {
+		iput(inode);
+		put_unused_fd(new_fd);
+		return -XFS_ERROR(ENOMEM);
+	}
+
+	/* Ensure umount returns EBUSY on umounts while this file is open. */
+	mntget(parfilp->f_vfsmnt);
+
+	/* Create file pointer. */
+	filp = dentry_open(dentry, parfilp->f_vfsmnt, hreq.oflags);
+	if (IS_ERR(filp)) {
+		put_unused_fd(new_fd);
+		return -XFS_ERROR(-PTR_ERR(filp));
+	}
+	if (inode->i_mode & S_IFREG)
+		filp->f_op = &linvfs_invis_file_operations;
+
+	fd_install(new_fd, filp);
+	return new_fd;
+}
+
+STATIC int
+xfs_readlink_by_handle(
+	xfs_mount_t		*mp,
+	unsigned long		arg,
+	struct file		*parfilp,
+	struct inode		*parinode)
+{
+	int			error;
+	struct iovec		aiov;
+	struct uio		auio;
+	struct inode		*inode;
+	xfs_fsop_handlereq_t	hreq;
+	vnode_t			*vp;
+	__u32			olen;
+
+	error = xfs_vget_fsop_handlereq(mp, parinode, CAP_SYS_ADMIN, arg,
+					sizeof(xfs_fsop_handlereq_t),
+					&hreq, &vp, &inode);
+	if (error)
+		return -error;
+
+	/* Restrict this handle operation to symlinks only. */
+	if (vp->v_type != VLNK) {
+		VN_RELE(vp);
+		return -XFS_ERROR(EINVAL);
+	}
+
+	if (copy_from_user(&olen, hreq.ohandlen, sizeof(__u32))) {
+		VN_RELE(vp);
+		return -XFS_ERROR(EFAULT);
+	}
+	aiov.iov_len	= olen;
+	aiov.iov_base	= hreq.ohandle;
+
+	auio.uio_iov	= &aiov;
+	auio.uio_iovcnt	= 1;
+	auio.uio_offset	= 0;
+	auio.uio_segflg	= UIO_USERSPACE;
+	auio.uio_resid	= olen;
+
+	VOP_READLINK(vp, &auio, IO_INVIS, NULL, error);
+
+	VN_RELE(vp);
+	return (olen - auio.uio_resid);
+}
+
+STATIC int
+xfs_fssetdm_by_handle(
+	xfs_mount_t		*mp,
+	unsigned long		arg,
+	struct file		*parfilp,
+	struct inode		*parinode)
+{
+	int			error;
+	struct fsdmidata	fsd;
+	xfs_fsop_setdm_handlereq_t dmhreq;
+	struct inode		*inode;
+	bhv_desc_t		*bdp;
+	vnode_t			*vp;
+
+	error = xfs_vget_fsop_handlereq(mp, parinode, CAP_MKNOD, arg,
+					sizeof(xfs_fsop_setdm_handlereq_t),
+					(xfs_fsop_handlereq_t *)&dmhreq,
+					&vp, &inode);
+	if (error)
+		return -error;
+
+	if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) {
+		VN_RELE(vp);
+		return -XFS_ERROR(EPERM);
+	}
+
+	if (copy_from_user(&fsd, dmhreq.data, sizeof(fsd))) {
+		VN_RELE(vp);
+		return -XFS_ERROR(EFAULT);
+	}
+
+	bdp = bhv_base_unlocked(VN_BHV_HEAD(vp));
+	error = xfs_set_dmattrs(bdp, fsd.fsd_dmevmask, fsd.fsd_dmstate, NULL);
+
+	VN_RELE(vp);
+	if (error)
+		return -error;
+	return 0;
+}
+
+STATIC int
+xfs_attrlist_by_handle(
+	xfs_mount_t		*mp,
+	unsigned long		arg,
+	struct file		*parfilp,
+	struct inode		*parinode)
+{
+	int			error;
+	attrlist_cursor_kern_t	*cursor;
+	xfs_fsop_attrlist_handlereq_t al_hreq;
+	struct inode		*inode;
+	vnode_t			*vp;
+
+	error = xfs_vget_fsop_handlereq(mp, parinode, CAP_SYS_ADMIN, arg,
+					sizeof(xfs_fsop_attrlist_handlereq_t),
+					(xfs_fsop_handlereq_t *)&al_hreq,
+					&vp, &inode);
+	if (error)
+		return -error;
+
+	cursor = (attrlist_cursor_kern_t *)&al_hreq.pos;
+	VOP_ATTR_LIST(vp, al_hreq.buffer, al_hreq.buflen, al_hreq.flags,
+			cursor, NULL, error);
+	VN_RELE(vp);
+	if (error)
+		return -error;
+	return 0;
+}
+
+STATIC int
+xfs_attrmulti_by_handle(
+	xfs_mount_t		*mp,
+	unsigned long		arg,
+	struct file		*parfilp,
+	struct inode		*parinode)
+{
+	int			error;
+	xfs_attr_multiop_t	*ops;
+	xfs_fsop_attrmulti_handlereq_t am_hreq;
+	struct inode		*inode;
+	vnode_t			*vp;
+	unsigned int		i, size;
+
+	error = xfs_vget_fsop_handlereq(mp, parinode, CAP_SYS_ADMIN, arg,
+					sizeof(xfs_fsop_attrmulti_handlereq_t),
+					(xfs_fsop_handlereq_t *)&am_hreq,
+					&vp, &inode);
+	if (error)
+		return -error;
+
+	size = am_hreq.opcount * sizeof(attr_multiop_t);
+	if (!size || size > 16 * PAGE_SIZE) {
+		VN_RELE(vp);
+		return -XFS_ERROR(E2BIG);
+	}
+
+	ops = (xfs_attr_multiop_t *)kmalloc(size, GFP_KERNEL);
+	if (!ops) {
+		VN_RELE(vp);
+		return -XFS_ERROR(ENOMEM);
+	}
+
+	if (copy_from_user(ops, am_hreq.ops, size)) {
+		kfree(ops);
+		VN_RELE(vp);
+		return -XFS_ERROR(EFAULT);
+	}
+
+	for (i = 0; i < am_hreq.opcount; i++) {
+		switch(ops[i].am_opcode) {
+		case ATTR_OP_GET:
+			VOP_ATTR_GET(vp,ops[i].am_attrname, ops[i].am_attrvalue,
+					&ops[i].am_length, ops[i].am_flags,
+					NULL, ops[i].am_error);
+			break;
+		case ATTR_OP_SET:
+			if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) {
+				ops[i].am_error = EPERM;
+				break;
+			}
+			VOP_ATTR_SET(vp,ops[i].am_attrname, ops[i].am_attrvalue,
+					ops[i].am_length, ops[i].am_flags,
+					NULL, ops[i].am_error);
+			break;
+		case ATTR_OP_REMOVE:
+			if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) {
+				ops[i].am_error = EPERM;
+				break;
+			}
+			VOP_ATTR_REMOVE(vp, ops[i].am_attrname, ops[i].am_flags,
+					NULL, ops[i].am_error);
+			break;
+		default:
+			ops[i].am_error = EINVAL;
+		}
+	}
+
+	if (copy_to_user(am_hreq.ops, ops, size))
+		error = -XFS_ERROR(EFAULT);
+
+	kfree(ops);
+	VN_RELE(vp);
+	return error;
+}
+
+/* prototypes for a few of the stack-hungry cases that have
+ * their own functions.  Functions are defined after their use
+ * so gcc doesn't get fancy and inline them with -03 */
+
+STATIC int
+xfs_ioc_space(
+	bhv_desc_t		*bdp,
+	vnode_t			*vp,
+	struct file		*filp,
+	int			flags,
+	unsigned int		cmd,
+	unsigned long		arg);
+
+STATIC int
+xfs_ioc_bulkstat(
+	xfs_mount_t		*mp,
+	unsigned int		cmd,
+	unsigned long		arg);
+
+STATIC int
+xfs_ioc_fsgeometry_v1(
+	xfs_mount_t		*mp,
+	unsigned long		arg);
+
+STATIC int
+xfs_ioc_fsgeometry(
+	xfs_mount_t		*mp,
+	unsigned long		arg);
+
+STATIC int
+xfs_ioc_xattr(
+	vnode_t			*vp,
+	xfs_inode_t		*ip,
+	struct file		*filp,
+	unsigned int		cmd,
+	unsigned long		arg);
+
+STATIC int
+xfs_ioc_getbmap(
+	bhv_desc_t		*bdp,
+	struct file		*filp,
+	int			flags,
+	unsigned int		cmd,
+	unsigned long		arg);
+
+STATIC int
+xfs_ioc_getbmapx(
+	bhv_desc_t		*bdp,
+	unsigned long		arg);
+
+int
+xfs_ioctl(
+	bhv_desc_t		*bdp,
+	struct inode		*inode,
+	struct file		*filp,
+	int			ioflags,
+	unsigned int		cmd,
+	unsigned long		arg)
+{
+	int			error;
+	vnode_t			*vp;
+	xfs_inode_t		*ip;
+	xfs_mount_t		*mp;
+
+	vp = LINVFS_GET_VP(inode);
+
+	vn_trace_entry(vp, "xfs_ioctl", (inst_t *)__return_address);
+
+	ip = XFS_BHVTOI(bdp);
+	mp = ip->i_mount;
+
+	switch (cmd) {
+
+	case XFS_IOC_ALLOCSP:
+	case XFS_IOC_FREESP:
+	case XFS_IOC_RESVSP:
+	case XFS_IOC_UNRESVSP:
+	case XFS_IOC_ALLOCSP64:
+	case XFS_IOC_FREESP64:
+	case XFS_IOC_RESVSP64:
+	case XFS_IOC_UNRESVSP64:
+		/*
+		 * Only allow the sys admin to reserve space unless
+		 * unwritten extents are enabled.
+		 */
+		if (!XFS_SB_VERSION_HASEXTFLGBIT(&mp->m_sb) &&
+		    !capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		return xfs_ioc_space(bdp, vp, filp, ioflags, cmd, arg);
+
+	case XFS_IOC_DIOINFO: {
+		struct dioattr	da;
+
+		da.d_miniosz = mp->m_sb.sb_blocksize;
+		da.d_mem = mp->m_sb.sb_blocksize;
+
+		/*
+		 * this only really needs to be BBSIZE.
+		 * it is set to the file system block size to
+		 * avoid having to do block zeroing on short writes.
+		 */
+		da.d_maxiosz = XFS_FSB_TO_B(mp,
+				XFS_B_TO_FSBT(mp, KIO_MAX_ATOMIC_IO << 10));
+
+		if (copy_to_user((struct dioattr *)arg, &da, sizeof(da)))
+			return -XFS_ERROR(EFAULT);
+		return 0;
+	}
+
+	case XFS_IOC_FSBULKSTAT_SINGLE:
+	case XFS_IOC_FSBULKSTAT:
+	case XFS_IOC_FSINUMBERS:
+		return xfs_ioc_bulkstat(mp, cmd, arg);
+
+	case XFS_IOC_FSGEOMETRY_V1:
+		return xfs_ioc_fsgeometry_v1(mp, arg);
+
+	case XFS_IOC_FSGEOMETRY:
+		return xfs_ioc_fsgeometry(mp, arg);
+
+	case XFS_IOC_GETVERSION:
+	case XFS_IOC_GETXFLAGS:
+	case XFS_IOC_SETXFLAGS:
+	case XFS_IOC_FSGETXATTR:
+	case XFS_IOC_FSSETXATTR:
+	case XFS_IOC_FSGETXATTRA:
+		return xfs_ioc_xattr(vp, ip, filp, cmd, arg);
+
+	case XFS_IOC_FSSETDM: {
+		struct fsdmidata	dmi;
+
+		if (copy_from_user(&dmi, (struct fsdmidata *)arg, sizeof(dmi)))
+			return -XFS_ERROR(EFAULT);
+
+		error = xfs_set_dmattrs(bdp, dmi.fsd_dmevmask, dmi.fsd_dmstate,
+							NULL);
+		return -error;
+	}
+
+	case XFS_IOC_GETBMAP:
+	case XFS_IOC_GETBMAPA:
+		return xfs_ioc_getbmap(bdp, filp, ioflags, cmd, arg);
+
+	case XFS_IOC_GETBMAPX:
+		return xfs_ioc_getbmapx(bdp, arg);
+
+	case XFS_IOC_FD_TO_HANDLE:
+	case XFS_IOC_PATH_TO_HANDLE:
+	case XFS_IOC_PATH_TO_FSHANDLE:
+		return xfs_find_handle(cmd, arg);
+
+	case XFS_IOC_OPEN_BY_HANDLE:
+		return xfs_open_by_handle(mp, arg, filp, inode);
+
+	case XFS_IOC_FSSETDM_BY_HANDLE:
+		return xfs_fssetdm_by_handle(mp, arg, filp, inode);
+
+	case XFS_IOC_READLINK_BY_HANDLE:
+		return xfs_readlink_by_handle(mp, arg, filp, inode);
+
+	case XFS_IOC_ATTRLIST_BY_HANDLE:
+		return xfs_attrlist_by_handle(mp, arg, filp, inode);
+
+	case XFS_IOC_ATTRMULTI_BY_HANDLE:
+		return xfs_attrmulti_by_handle(mp, arg, filp, inode);
+
+	case XFS_IOC_SWAPEXT: {
+		error = xfs_swapext((struct xfs_swapext *)arg);
+		return -error;
+	}
+
+	case XFS_IOC_FSCOUNTS: {
+		xfs_fsop_counts_t out;
+
+		error = xfs_fs_counts(mp, &out);
+		if (error)
+			return -error;
+
+		if (copy_to_user((char *)arg, &out, sizeof(out)))
+			return -XFS_ERROR(EFAULT);
+		return 0;
+	}
+
+	case XFS_IOC_SET_RESBLKS: {
+		xfs_fsop_resblks_t inout;
+		__uint64_t	   in;
+
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		if (copy_from_user(&inout, (char *)arg, sizeof(inout)))
+			return -XFS_ERROR(EFAULT);
+
+		/* input parameter is passed in resblks field of structure */
+		in = inout.resblks;
+		error = xfs_reserve_blocks(mp, &in, &inout);
+		if (error)
+			return -error;
+
+		if (copy_to_user((char *)arg, &inout, sizeof(inout)))
+			return -XFS_ERROR(EFAULT);
+		return 0;
+	}
+
+	case XFS_IOC_GET_RESBLKS: {
+		xfs_fsop_resblks_t out;
+
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		error = xfs_reserve_blocks(mp, NULL, &out);
+		if (error)
+			return -error;
+
+		if (copy_to_user((char *)arg, &out, sizeof(out)))
+			return -XFS_ERROR(EFAULT);
+
+		return 0;
+	}
+
+	case XFS_IOC_FSGROWFSDATA: {
+		xfs_growfs_data_t in;
+
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		if (copy_from_user(&in, (char *)arg, sizeof(in)))
+			return -XFS_ERROR(EFAULT);
+
+		error = xfs_growfs_data(mp, &in);
+		return -error;
+	}
+
+	case XFS_IOC_FSGROWFSLOG: {
+		xfs_growfs_log_t in;
+
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		if (copy_from_user(&in, (char *)arg, sizeof(in)))
+			return -XFS_ERROR(EFAULT);
+
+		error = xfs_growfs_log(mp, &in);
+		return -error;
+	}
+
+	case XFS_IOC_FSGROWFSRT: {
+		xfs_growfs_rt_t in;
+
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		if (copy_from_user(&in, (char *)arg, sizeof(in)))
+			return -XFS_ERROR(EFAULT);
+
+		error = xfs_growfs_rt(mp, &in);
+		return -error;
+	}
+
+	case XFS_IOC_FREEZE:
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		if (vp->v_vfsp->vfs_frozen == SB_UNFROZEN) {
+			freeze_bdev(mp->m_ddev_targp->pbr_bdev);
+			if (mp->m_rtdev_targp)
+				freeze_bdev(mp->m_rtdev_targp->pbr_bdev);
+		}
+		return 0;
+
+	case XFS_IOC_THAW:
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		if (vp->v_vfsp->vfs_frozen != SB_UNFROZEN) {
+			thaw_bdev(mp->m_ddev_targp->pbr_bdev, inode->i_sb);
+			if (mp->m_rtdev_targp)
+				thaw_bdev(mp->m_ddev_targp->pbr_bdev, NULL);
+		}
+		return 0;
+
+	case XFS_IOC_GOINGDOWN: {
+		__uint32_t in;
+
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		if (get_user(in, (__uint32_t *)arg))
+			return -XFS_ERROR(EFAULT);
+
+		error = xfs_fs_goingdown(mp, in);
+		return -error;
+	}
+
+	case XFS_IOC_ERROR_INJECTION: {
+		xfs_error_injection_t in;
+
+		if (!capable(CAP_SYS_ADMIN))
+			return EPERM;
+
+		if (copy_from_user(&in, (char *)arg, sizeof(in)))
+			return -XFS_ERROR(EFAULT);
+
+		error = xfs_errortag_add(in.errtag, mp);
+		return -error;
+	}
+
+	case XFS_IOC_ERROR_CLEARALL:
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		error = xfs_errortag_clearall(mp);
+		return -error;
+
+	default:
+		return -ENOTTY;
+	}
+}
+
+STATIC int
+xfs_ioc_space(
+	bhv_desc_t		*bdp,
+	vnode_t			*vp,
+	struct file		*filp,
+	int			ioflags,
+	unsigned int		cmd,
+	unsigned long		arg)
+{
+	xfs_flock64_t		bf;
+	int			attr_flags = 0;
+	int			error;
+
+	if (vp->v_inode.i_flags & (S_IMMUTABLE|S_APPEND))
+		return -XFS_ERROR(EPERM);
+
+	if (!(filp->f_flags & FMODE_WRITE))
+		return -XFS_ERROR(EBADF);
+
+	if (vp->v_type != VREG)
+		return -XFS_ERROR(EINVAL);
+
+	if (copy_from_user(&bf, (xfs_flock64_t *)arg, sizeof(bf)))
+		return -XFS_ERROR(EFAULT);
+
+	if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
+		attr_flags |= ATTR_NONBLOCK;
+	if (ioflags & IO_INVIS)
+		attr_flags |= ATTR_DMI;
+
+	error = xfs_change_file_space(bdp, cmd, &bf, filp->f_pos,
+					      NULL, attr_flags);
+	return -error;
+}
+
+STATIC int
+xfs_ioc_bulkstat(
+	xfs_mount_t		*mp,
+	unsigned int		cmd,
+	unsigned long		arg)
+{
+	xfs_fsop_bulkreq_t	bulkreq;
+	int			count;	/* # of records returned */
+	xfs_ino_t		inlast;	/* last inode number */
+	int			done;
+	int			error;
+
+	/* done = 1 if there are more stats to get and if bulkstat */
+	/* should be called again (unused here, but used in dmapi) */
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+
+	if (XFS_FORCED_SHUTDOWN(mp))
+		return -XFS_ERROR(EIO);
+
+	if (copy_from_user(&bulkreq, (xfs_fsop_bulkreq_t *)arg,
+					sizeof(xfs_fsop_bulkreq_t)))
+		return -XFS_ERROR(EFAULT);
+
+	if (copy_from_user(&inlast, (__s64 *)bulkreq.lastip,
+						sizeof(__s64)))
+		return -XFS_ERROR(EFAULT);
+
+	if ((count = bulkreq.icount) <= 0)
+		return -XFS_ERROR(EINVAL);
+
+	if (cmd == XFS_IOC_FSINUMBERS)
+		error = xfs_inumbers(mp, &inlast, &count,
+						bulkreq.ubuffer);
+	else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE)
+		error = xfs_bulkstat_single(mp, &inlast,
+						bulkreq.ubuffer, &done);
+	else {	/* XFS_IOC_FSBULKSTAT */
+		if (count == 1 && inlast != 0) {
+			inlast++;
+			error = xfs_bulkstat_single(mp, &inlast,
+					bulkreq.ubuffer, &done);
+		} else {
+			error = xfs_bulkstat(mp, &inlast, &count,
+				(bulkstat_one_pf)xfs_bulkstat_one, NULL,
+				sizeof(xfs_bstat_t), bulkreq.ubuffer,
+				BULKSTAT_FG_QUICK, &done);
+		}
+	}
+
+	if (error)
+		return -error;
+
+	if (bulkreq.ocount != NULL) {
+		if (copy_to_user((xfs_ino_t *)bulkreq.lastip, &inlast,
+						sizeof(xfs_ino_t)))
+			return -XFS_ERROR(EFAULT);
+
+		if (copy_to_user((__s32 *)bulkreq.ocount, &count,
+						sizeof(count)))
+			return -XFS_ERROR(EFAULT);
+	}
+
+	return 0;
+}
+
+STATIC int
+xfs_ioc_fsgeometry_v1(
+	xfs_mount_t		*mp,
+	unsigned long		arg)
+{
+	xfs_fsop_geom_v1_t	fsgeo;
+	int			error;
+
+	error = xfs_fs_geometry(mp, (xfs_fsop_geom_t *)&fsgeo, 3);
+	if (error)
+		return -error;
+
+	if (copy_to_user((xfs_fsop_geom_t *)arg, &fsgeo, sizeof(fsgeo)))
+		return -XFS_ERROR(EFAULT);
+	return 0;
+}
+
+STATIC int
+xfs_ioc_fsgeometry(
+	xfs_mount_t		*mp,
+	unsigned long		arg)
+{
+	xfs_fsop_geom_t		fsgeo;
+	int			error;
+
+	error = xfs_fs_geometry(mp, &fsgeo, 4);
+	if (error)
+		return -error;
+
+	if (copy_to_user((xfs_fsop_geom_t *)arg, &fsgeo, sizeof(fsgeo)))
+		return -XFS_ERROR(EFAULT);
+	return 0;
+}
+
+/*
+ * Linux extended inode flags interface.
+ */
+#define LINUX_XFLAG_SYNC	0x00000008 /* Synchronous updates */
+#define LINUX_XFLAG_IMMUTABLE	0x00000010 /* Immutable file */
+#define LINUX_XFLAG_APPEND	0x00000020 /* writes to file may only append */
+#define LINUX_XFLAG_NODUMP	0x00000040 /* do not dump file */
+#define LINUX_XFLAG_NOATIME	0x00000080 /* do not update atime */
+
+STATIC unsigned int
+xfs_merge_ioc_xflags(
+	unsigned int	flags,
+	unsigned int	start)
+{
+	unsigned int	xflags = start;
+
+	if (flags & LINUX_XFLAG_IMMUTABLE)
+		xflags |= XFS_XFLAG_IMMUTABLE;
+	else
+		xflags &= ~XFS_XFLAG_IMMUTABLE;
+	if (flags & LINUX_XFLAG_APPEND)
+		xflags |= XFS_XFLAG_APPEND;
+	else
+		xflags &= ~XFS_XFLAG_APPEND;
+	if (flags & LINUX_XFLAG_SYNC)
+		xflags |= XFS_XFLAG_SYNC;
+	else
+		xflags &= ~XFS_XFLAG_SYNC;
+	if (flags & LINUX_XFLAG_NOATIME)
+		xflags |= XFS_XFLAG_NOATIME;
+	else
+		xflags &= ~XFS_XFLAG_NOATIME;
+	if (flags & LINUX_XFLAG_NODUMP)
+		xflags |= XFS_XFLAG_NODUMP;
+	else
+		xflags &= ~XFS_XFLAG_NODUMP;
+
+	return xflags;
+}
+
+STATIC unsigned int
+xfs_di2lxflags(
+	__uint16_t	di_flags)
+{
+	unsigned int	flags = 0;
+
+	if (di_flags & XFS_DIFLAG_IMMUTABLE)
+		flags |= LINUX_XFLAG_IMMUTABLE;
+	if (di_flags & XFS_DIFLAG_APPEND)
+		flags |= LINUX_XFLAG_APPEND;
+	if (di_flags & XFS_DIFLAG_SYNC)
+		flags |= LINUX_XFLAG_SYNC;
+	if (di_flags & XFS_DIFLAG_NOATIME)
+		flags |= LINUX_XFLAG_NOATIME;
+	if (di_flags & XFS_DIFLAG_NODUMP)
+		flags |= LINUX_XFLAG_NODUMP;
+	return flags;
+}
+
+STATIC int
+xfs_ioc_xattr(
+	vnode_t			*vp,
+	xfs_inode_t		*ip,
+	struct file		*filp,
+	unsigned int		cmd,
+	unsigned long		arg)
+{
+	struct fsxattr		fa;
+	vattr_t			va;
+	int			error;
+	int			attr_flags;
+	unsigned int		flags;
+
+	switch (cmd) {
+	case XFS_IOC_FSGETXATTR: {
+		va.va_mask = XFS_AT_XFLAGS|XFS_AT_EXTSIZE|XFS_AT_NEXTENTS;
+		VOP_GETATTR(vp, &va, 0, NULL, error);
+		if (error)
+			return -error;
+
+		fa.fsx_xflags	= va.va_xflags;
+		fa.fsx_extsize	= va.va_extsize;
+		fa.fsx_nextents = va.va_nextents;
+
+		if (copy_to_user((struct fsxattr *)arg, &fa, sizeof(fa)))
+			return -XFS_ERROR(EFAULT);
+		return 0;
+	}
+
+	case XFS_IOC_FSSETXATTR: {
+		if (copy_from_user(&fa, (struct fsxattr *)arg, sizeof(fa)))
+			return -XFS_ERROR(EFAULT);
+
+		attr_flags = 0;
+		if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
+			attr_flags |= ATTR_NONBLOCK;
+
+		va.va_mask = XFS_AT_XFLAGS | XFS_AT_EXTSIZE;
+		va.va_xflags  = fa.fsx_xflags;
+		va.va_extsize = fa.fsx_extsize;
+
+		VOP_SETATTR(vp, &va, attr_flags, NULL, error);
+		if (!error)
+			vn_revalidate(vp);	/* update Linux inode flags */
+		return -error;
+	}
+
+	case XFS_IOC_FSGETXATTRA: {
+		va.va_mask = XFS_AT_XFLAGS|XFS_AT_EXTSIZE|XFS_AT_ANEXTENTS;
+		VOP_GETATTR(vp, &va, 0, NULL, error);
+		if (error)
+			return -error;
+
+		fa.fsx_xflags	= va.va_xflags;
+		fa.fsx_extsize	= va.va_extsize;
+		fa.fsx_nextents = va.va_anextents;
+
+		if (copy_to_user((struct fsxattr *)arg, &fa, sizeof(fa)))
+			return -XFS_ERROR(EFAULT);
+		return 0;
+	}
+
+	case XFS_IOC_GETXFLAGS: {
+		flags = xfs_di2lxflags(ip->i_d.di_flags);
+		if (copy_to_user((unsigned int *)arg, &flags, sizeof(flags)))
+			return -XFS_ERROR(EFAULT);
+		return 0;
+	}
+
+	case XFS_IOC_SETXFLAGS: {
+		if (copy_from_user(&flags, (unsigned int *)arg, sizeof(flags)))
+			return -XFS_ERROR(EFAULT);
+
+		if (flags & ~(LINUX_XFLAG_IMMUTABLE | LINUX_XFLAG_APPEND | \
+			      LINUX_XFLAG_NOATIME | LINUX_XFLAG_NODUMP | \
+			      LINUX_XFLAG_SYNC))
+			return -XFS_ERROR(EOPNOTSUPP);
+
+		attr_flags = 0;
+		if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
+			attr_flags |= ATTR_NONBLOCK;
+
+		va.va_mask = XFS_AT_XFLAGS;
+		va.va_xflags = xfs_merge_ioc_xflags(flags,
+				xfs_dic2xflags(&ip->i_d, ARCH_NOCONVERT));
+
+		VOP_SETATTR(vp, &va, attr_flags, NULL, error);
+		if (!error)
+			vn_revalidate(vp);	/* update Linux inode flags */
+		return -error;
+	}
+
+	case XFS_IOC_GETVERSION: {
+		flags = LINVFS_GET_IP(vp)->i_generation;
+		if (copy_to_user((unsigned int *)arg, &flags, sizeof(flags)))
+			return -XFS_ERROR(EFAULT);
+		return 0;
+	}
+
+	default:
+		return -ENOTTY;
+	}
+}
+
+STATIC int
+xfs_ioc_getbmap(
+	bhv_desc_t		*bdp,
+	struct file		*filp,
+	int			ioflags,
+	unsigned int		cmd,
+	unsigned long		arg)
+{
+	struct getbmap		bm;
+	int			iflags;
+	int			error;
+
+	if (copy_from_user(&bm, (struct getbmap *)arg, sizeof(bm)))
+		return -XFS_ERROR(EFAULT);
+
+	if (bm.bmv_count < 2)
+		return -XFS_ERROR(EINVAL);
+
+	iflags = (cmd == XFS_IOC_GETBMAPA ? BMV_IF_ATTRFORK : 0);
+	if (ioflags & IO_INVIS)
+		iflags |= BMV_IF_NO_DMAPI_READ;
+
+	error = xfs_getbmap(bdp, &bm, (struct getbmap *)arg+1, iflags);
+	if (error)
+		return -error;
+
+	if (copy_to_user((struct getbmap *)arg, &bm, sizeof(bm)))
+		return -XFS_ERROR(EFAULT);
+	return 0;
+}
+
+STATIC int
+xfs_ioc_getbmapx(
+	bhv_desc_t		*bdp,
+	unsigned long		arg)
+{
+	struct getbmapx		bmx;
+	struct getbmap		bm;
+	int			iflags;
+	int			error;
+
+	if (copy_from_user(&bmx, (struct getbmapx *)arg, sizeof(bmx)))
+		return -XFS_ERROR(EFAULT);
+
+	if (bmx.bmv_count < 2)
+		return -XFS_ERROR(EINVAL);
+
+	/*
+	 * Map input getbmapx structure to a getbmap
+	 * structure for xfs_getbmap.
+	 */
+	GETBMAP_CONVERT(bmx, bm);
+
+	iflags = bmx.bmv_iflags;
+
+	if (iflags & (~BMV_IF_VALID))
+		return -XFS_ERROR(EINVAL);
+
+	iflags |= BMV_IF_EXTENDED;
+
+	error = xfs_getbmap(bdp, &bm, (struct getbmapx *)arg+1, iflags);
+	if (error)
+		return -error;
+
+	GETBMAP_CONVERT(bm, bmx);
+
+	if (copy_to_user((struct getbmapx *)arg, &bmx, sizeof(bmx)))
+		return -XFS_ERROR(EFAULT);
+
+	return 0;
+}
diff --git a/fs/xfs/linux-2.4/xfs_iops.c b/fs/xfs/linux-2.4/xfs_iops.c
new file mode 100644
index 00000000000000..ed93f6ee204593
--- /dev/null
+++ b/fs/xfs/linux-2.4/xfs_iops.c
@@ -0,0 +1,690 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_alloc.h"
+#include "xfs_dmapi.h"
+#include "xfs_quota.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_bit.h"
+#include "xfs_rtalloc.h"
+#include "xfs_error.h"
+#include "xfs_itable.h"
+#include "xfs_rw.h"
+#include "xfs_acl.h"
+#include "xfs_cap.h"
+#include "xfs_mac.h"
+#include "xfs_attr.h"
+#include "xfs_buf_item.h"
+#include "xfs_utils.h"
+
+#include <linux/xattr.h>
+
+
+/*
+ * Pull the link count and size up from the xfs inode to the linux inode
+ */
+STATIC void
+validate_fields(
+	struct inode	*ip)
+{
+	vnode_t		*vp = LINVFS_GET_VP(ip);
+	vattr_t		va;
+	int		error;
+
+	va.va_mask = XFS_AT_NLINK|XFS_AT_SIZE|XFS_AT_NBLOCKS;
+	VOP_GETATTR(vp, &va, ATTR_LAZY, NULL, error);
+	if (likely(!error)) {
+		ip->i_nlink = va.va_nlink;
+		ip->i_blocks = va.va_nblocks;
+
+		/* we're under i_sem so i_size can't change under us */
+		if (i_size_read(ip) != va.va_size)
+			i_size_write(ip, va.va_size);
+	}
+}
+
+#ifdef CONFIG_XFS_POSIX_ACL
+/*
+ * Determine whether a process has a valid fs_struct (kernel daemons
+ * like knfsd don't have an fs_struct).
+ */
+STATIC int inline
+has_fs_struct(struct task_struct *task)
+{
+	return (task->fs != init_task.fs);
+}
+#endif
+
+STATIC int
+linvfs_mknod(
+	struct inode	*dir,
+	struct dentry	*dentry,
+	int		mode,
+	int		rdev)
+{
+	struct inode	*ip;
+	vattr_t		va;
+	vnode_t		*vp = NULL, *dvp = LINVFS_GET_VP(dir);
+	xfs_acl_t	*default_acl = NULL;
+	attrexists_t	test_default_acl = _ACL_DEFAULT_EXISTS;
+	int		error;
+
+	if (test_default_acl && test_default_acl(dvp)) {
+		if (!_ACL_ALLOC(default_acl))
+			return -ENOMEM;
+		if (!_ACL_GET_DEFAULT(dvp, default_acl)) {
+			_ACL_FREE(default_acl);
+			default_acl = NULL;
+		}
+	}
+
+#ifdef CONFIG_XFS_POSIX_ACL
+	/*
+	 * Conditionally compiled so that the ACL base kernel changes can be
+	 * split out into separate patches - remove this once MS_POSIXACL is
+	 * accepted, or some other way to implement this exists.
+	 */
+	if (IS_POSIXACL(dir) && !default_acl && has_fs_struct(current))
+		mode &= ~current->fs->umask;
+#endif
+
+	memset(&va, 0, sizeof(va));
+	va.va_mask = XFS_AT_TYPE|XFS_AT_MODE;
+	va.va_type = IFTOVT(mode);
+	va.va_mode = mode;
+
+	switch (mode & S_IFMT) {
+	case S_IFCHR: case S_IFBLK: case S_IFIFO: case S_IFSOCK:
+		va.va_rdev = XFS_MKDEV(MAJOR(rdev), MINOR(rdev));
+		va.va_mask |= XFS_AT_RDEV;
+		/*FALLTHROUGH*/
+	case S_IFREG:
+		VOP_CREATE(dvp, dentry, &va, &vp, NULL, error);
+		break;
+	case S_IFDIR:
+		VOP_MKDIR(dvp, dentry, &va, &vp, NULL, error);
+		break;
+	default:
+		error = EINVAL;
+		break;
+	}
+
+	if (default_acl) {
+		if (!error) {
+			error = _ACL_INHERIT(vp, &va, default_acl);
+			if (!error) {
+				VMODIFY(vp);
+			} else {
+				struct dentry	teardown = {};
+				int		err2;
+
+				/* Oh, the horror.
+				 * If we can't add the ACL we must back out.
+				 * ENOSPC can hit here, among other things.
+				 */
+				teardown.d_inode = ip = LINVFS_GET_IP(vp);
+				teardown.d_name = dentry->d_name;
+
+				vn_mark_bad(vp);
+
+				if (S_ISDIR(mode))
+					VOP_RMDIR(dvp, &teardown, NULL, err2);
+				else
+					VOP_REMOVE(dvp, &teardown, NULL, err2);
+				VN_RELE(vp);
+			}
+		}
+		_ACL_FREE(default_acl);
+	}
+
+	if (!error) {
+		ASSERT(vp);
+		ip = LINVFS_GET_IP(vp);
+
+		if (S_ISCHR(mode) || S_ISBLK(mode))
+			ip->i_rdev = to_kdev_t(rdev);
+		else if (S_ISDIR(mode))
+			validate_fields(ip);
+		d_instantiate(dentry, ip);
+		validate_fields(dir);
+	}
+	return -error;
+}
+
+STATIC int
+linvfs_create(
+	struct inode	*dir,
+	struct dentry	*dentry,
+	int		mode)
+{
+	return linvfs_mknod(dir, dentry, mode, 0);
+}
+
+STATIC int
+linvfs_mkdir(
+	struct inode	*dir,
+	struct dentry	*dentry,
+	int		mode)
+{
+	return linvfs_mknod(dir, dentry, mode|S_IFDIR, 0);
+}
+
+STATIC struct dentry *
+linvfs_lookup(
+	struct inode	*dir,
+	struct dentry	*dentry)
+{
+	struct inode	*ip = NULL;
+	vnode_t		*vp, *cvp = NULL;
+	int		error;
+
+	if (dentry->d_name.len >= MAXNAMELEN)
+		return ERR_PTR(-ENAMETOOLONG);
+
+	vp = LINVFS_GET_VP(dir);
+	VOP_LOOKUP(vp, dentry, &cvp, 0, NULL, NULL, error);
+	if (!error) {
+		ASSERT(cvp);
+		ip = LINVFS_GET_IP(cvp);
+		if (!ip) {
+			VN_RELE(cvp);
+			return ERR_PTR(-EACCES);
+		}
+	}
+	if (error && (error != ENOENT))
+		return ERR_PTR(-error);
+	d_add(dentry, ip);	/* Negative entry goes in if ip is NULL */
+	return NULL;
+}
+
+STATIC int
+linvfs_link(
+	struct dentry	*old_dentry,
+	struct inode	*dir,
+	struct dentry	*dentry)
+{
+	struct inode	*ip;	/* inode of guy being linked to */
+	vnode_t		*tdvp;	/* target directory for new name/link */
+	vnode_t		*vp;	/* vp of name being linked */
+	int		error;
+
+	ip = old_dentry->d_inode;	/* inode being linked to */
+	if (S_ISDIR(ip->i_mode))
+		return -EPERM;
+
+	tdvp = LINVFS_GET_VP(dir);
+	vp = LINVFS_GET_VP(ip);
+
+	VOP_LINK(tdvp, vp, dentry, NULL, error);
+	if (!error) {
+		VMODIFY(tdvp);
+		VN_HOLD(vp);
+		validate_fields(ip);
+		d_instantiate(dentry, ip);
+	}
+	return -error;
+}
+
+STATIC int
+linvfs_unlink(
+	struct inode	*dir,
+	struct dentry	*dentry)
+{
+	struct inode	*inode;
+	vnode_t		*dvp;	/* directory containing name to remove */
+	int		error;
+
+	inode = dentry->d_inode;
+	dvp = LINVFS_GET_VP(dir);
+
+	VOP_REMOVE(dvp, dentry, NULL, error);
+	if (!error) {
+		validate_fields(dir);	/* For size only */
+		validate_fields(inode);
+	}
+
+	return -error;
+}
+
+STATIC int
+linvfs_symlink(
+	struct inode	*dir,
+	struct dentry	*dentry,
+	const char	*symname)
+{
+	struct inode	*ip;
+	vattr_t		va;
+	vnode_t		*dvp;	/* directory containing name of symlink */
+	vnode_t		*cvp;	/* used to lookup symlink to put in dentry */
+	int		error;
+
+	dvp = LINVFS_GET_VP(dir);
+	cvp = NULL;
+
+	memset(&va, 0, sizeof(va));
+	va.va_type = VLNK;
+	va.va_mode = irix_symlink_mode ? 0777 & ~current->fs->umask : S_IRWXUGO;
+	va.va_mask = XFS_AT_TYPE|XFS_AT_MODE;
+
+	error = 0;
+	VOP_SYMLINK(dvp, dentry, &va, (char *)symname, &cvp, NULL, error);
+	if (!error && cvp) {
+		ASSERT(cvp->v_type == VLNK);
+		ip = LINVFS_GET_IP(cvp);
+		d_instantiate(dentry, ip);
+		validate_fields(dir);
+		validate_fields(ip); /* size needs update */
+	}
+	return -error;
+}
+
+STATIC int
+linvfs_rmdir(
+	struct inode	*dir,
+	struct dentry	*dentry)
+{
+	struct inode	*inode = dentry->d_inode;
+	vnode_t		*dvp = LINVFS_GET_VP(dir);
+	int		error;
+
+	VOP_RMDIR(dvp, dentry, NULL, error);
+	if (!error) {
+		validate_fields(inode);
+		validate_fields(dir);
+	}
+	return -error;
+}
+
+STATIC int
+linvfs_rename(
+	struct inode	*odir,
+	struct dentry	*odentry,
+	struct inode	*ndir,
+	struct dentry	*ndentry)
+{
+	struct inode	*new_inode = ndentry->d_inode;
+	vnode_t		*fvp;	/* from directory */
+	vnode_t		*tvp;	/* target directory */
+	int		error;
+
+	fvp = LINVFS_GET_VP(odir);
+	tvp = LINVFS_GET_VP(ndir);
+
+	VOP_RENAME(fvp, odentry, tvp, ndentry, NULL, error);
+	if (error)
+		return -error;
+
+	if (new_inode)
+		validate_fields(new_inode);
+
+	validate_fields(odir);
+	if (ndir != odir)
+		validate_fields(ndir);
+	return 0;
+}
+
+STATIC int
+linvfs_readlink(
+	struct dentry	*dentry,
+	char		*buf,
+	int		size)
+{
+	vnode_t		*vp = LINVFS_GET_VP(dentry->d_inode);
+	uio_t		uio;
+	iovec_t		iov;
+	int		error;
+
+	iov.iov_base = buf;
+	iov.iov_len = size;
+
+	uio.uio_iov = &iov;
+	uio.uio_offset = 0;
+	uio.uio_segflg = UIO_USERSPACE;
+	uio.uio_resid = size;
+	uio.uio_iovcnt = 1;
+
+	VOP_READLINK(vp, &uio, 0, NULL, error);
+	if (error)
+		return -error;
+
+	return (size - uio.uio_resid);
+}
+
+/*
+ * careful here - this function can get called recursively, so
+ * we need to be very careful about how much stack we use.
+ * uio is kmalloced for this reason...
+ */
+STATIC int
+linvfs_follow_link(
+	struct dentry		*dentry,
+	struct nameidata	*nd)
+{
+	vnode_t			*vp;
+	uio_t			*uio;
+	iovec_t			iov;
+	int			error;
+	char			*link;
+
+	ASSERT(dentry);
+	ASSERT(nd);
+
+	link = (char *)kmalloc(MAXNAMELEN+1, GFP_KERNEL);
+	if (!link)
+		return -ENOMEM;
+
+	uio = (uio_t *)kmalloc(sizeof(uio_t), GFP_KERNEL);
+	if (!uio) {
+		kfree(link);
+		return -ENOMEM;
+	}
+
+	vp = LINVFS_GET_VP(dentry->d_inode);
+
+	iov.iov_base = link;
+	iov.iov_len = MAXNAMELEN;
+
+	uio->uio_iov = &iov;
+	uio->uio_offset = 0;
+	uio->uio_segflg = UIO_SYSSPACE;
+	uio->uio_resid = MAXNAMELEN;
+	uio->uio_iovcnt = 1;
+
+	VOP_READLINK(vp, uio, 0, NULL, error);
+	if (error) {
+		kfree(uio);
+		kfree(link);
+		return -error;
+	}
+
+	link[MAXNAMELEN - uio->uio_resid] = '\0';
+	kfree(uio);
+
+	/* vfs_follow_link returns (-) errors */
+	error = vfs_follow_link(nd, link);
+	kfree(link);
+	return error;
+}
+
+STATIC int
+linvfs_permission(
+	struct inode	*inode,
+	int		mode)
+{
+	vnode_t		*vp = LINVFS_GET_VP(inode);
+	int		error;
+
+	mode <<= 6;		/* convert from linux to vnode access bits */
+	VOP_ACCESS(vp, mode, NULL, error);
+	return -error;
+}
+
+STATIC int
+linvfs_revalidate(
+	struct dentry	*dentry)
+{
+	vnode_t		*vp = LINVFS_GET_VP(dentry->d_inode);
+
+	if (unlikely(vp->v_flag & VMODIFIED))
+		return vn_revalidate(vp);
+	return 0;
+}
+
+STATIC int
+linvfs_setattr(
+	struct dentry	*dentry,
+	struct iattr	*attr)
+{
+	struct inode	*inode = dentry->d_inode;
+	unsigned int	ia_valid = attr->ia_valid;
+	vnode_t		*vp = LINVFS_GET_VP(inode);
+	vattr_t		vattr;
+	int		flags = 0;
+	int		error;
+
+	memset(&vattr, 0, sizeof(vattr_t));
+	if (ia_valid & ATTR_UID) {
+		vattr.va_mask |= XFS_AT_UID;
+		vattr.va_uid = attr->ia_uid;
+	}
+	if (ia_valid & ATTR_GID) {
+		vattr.va_mask |= XFS_AT_GID;
+		vattr.va_gid = attr->ia_gid;
+	}
+	if (ia_valid & ATTR_SIZE) {
+		vattr.va_mask |= XFS_AT_SIZE;
+		vattr.va_size = attr->ia_size;
+	}
+	if (ia_valid & ATTR_ATIME) {
+		vattr.va_mask |= XFS_AT_ATIME;
+		vattr.va_atime.tv_sec = attr->ia_atime;
+		vattr.va_atime.tv_nsec = 0;
+	}
+	if (ia_valid & ATTR_MTIME) {
+		vattr.va_mask |= XFS_AT_MTIME;
+		vattr.va_mtime.tv_sec = attr->ia_mtime;
+		vattr.va_mtime.tv_nsec = 0;
+	}
+	if (ia_valid & ATTR_CTIME) {
+		vattr.va_mask |= XFS_AT_CTIME;
+		vattr.va_ctime.tv_sec = attr->ia_ctime;
+		vattr.va_ctime.tv_nsec = 0;
+	}
+	if (ia_valid & ATTR_MODE) {
+		vattr.va_mask |= XFS_AT_MODE;
+		vattr.va_mode = attr->ia_mode;
+		if (!in_group_p(inode->i_gid) && !capable(CAP_FSETID))
+			inode->i_mode &= ~S_ISGID;
+	}
+
+	if (ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET))
+		flags |= ATTR_UTIME;
+
+	VOP_SETATTR(vp, &vattr, flags, NULL, error);
+	if (error)
+		return -error;
+	vn_revalidate(vp);
+	return error;
+}
+
+STATIC void
+linvfs_truncate(
+	struct inode	*inode)
+{
+	block_truncate_page(inode->i_mapping, inode->i_size, linvfs_get_block);
+}
+
+STATIC int
+linvfs_setxattr(
+	struct dentry	*dentry,
+	const char	*name,
+	void		*data,
+	size_t		size,
+	int		flags)
+{
+	vnode_t		*vp = LINVFS_GET_VP(dentry->d_inode);
+	char		*attr = (char *)name;
+	attrnames_t	*namesp;
+	int		xflags = 0;
+	int		error;
+
+	namesp = attr_lookup_namespace(attr, attr_namespaces, ATTR_NAMECOUNT);
+	if (!namesp)
+		return -EOPNOTSUPP;
+	attr += namesp->attr_namelen;
+	error = namesp->attr_capable(vp, NULL);
+	if (error)
+		return error;
+
+	/* Convert Linux syscall to XFS internal ATTR flags */
+	if (flags & XATTR_CREATE)
+		xflags |= ATTR_CREATE;
+	if (flags & XATTR_REPLACE)
+		xflags |= ATTR_REPLACE;
+	xflags |= namesp->attr_flag;
+	return namesp->attr_set(vp, attr, (void *)data, size, xflags);
+}
+
+STATIC ssize_t
+linvfs_getxattr(
+	struct dentry	*dentry,
+	const char	*name,
+	void		*data,
+	size_t		size)
+{
+	vnode_t		*vp = LINVFS_GET_VP(dentry->d_inode);
+	char		*attr = (char *)name;
+	attrnames_t	*namesp;
+	int		xflags = 0;
+	ssize_t		error;
+
+	namesp = attr_lookup_namespace(attr, attr_namespaces, ATTR_NAMECOUNT);
+	if (!namesp)
+		return -EOPNOTSUPP;
+	attr += namesp->attr_namelen;
+	error = namesp->attr_capable(vp, NULL);
+	if (error)
+		return error;
+
+	/* Convert Linux syscall to XFS internal ATTR flags */
+	if (!size) {
+		xflags |= ATTR_KERNOVAL;
+		data = NULL;
+	}
+	xflags |= namesp->attr_flag;
+	return namesp->attr_get(vp, attr, (void *)data, size, xflags);
+}
+
+STATIC ssize_t
+linvfs_listxattr(
+	struct dentry		*dentry,
+	char			*data,
+	size_t			size)
+{
+	vnode_t			*vp = LINVFS_GET_VP(dentry->d_inode);
+	int			error, xflags = ATTR_KERNAMELS;
+	ssize_t			result;
+
+	if (!size)
+		xflags |= ATTR_KERNOVAL;
+	xflags |= capable(CAP_SYS_ADMIN) ? ATTR_KERNFULLS : ATTR_KERNORMALS;
+
+	error = attr_generic_list(vp, data, size, xflags, &result);
+	if (error < 0)
+		return error;
+	return result;
+}
+
+STATIC int
+linvfs_removexattr(
+	struct dentry	*dentry,
+	const char	*name)
+{
+	vnode_t		*vp = LINVFS_GET_VP(dentry->d_inode);
+	char		*attr = (char *)name;
+	attrnames_t	*namesp;
+	int		xflags = 0;
+	int		error;
+
+	namesp = attr_lookup_namespace(attr, attr_namespaces, ATTR_NAMECOUNT);
+	if (!namesp)
+		return -EOPNOTSUPP;
+	attr += namesp->attr_namelen;
+	error = namesp->attr_capable(vp, NULL);
+	if (error)
+		return error;
+	xflags |= namesp->attr_flag;
+	return namesp->attr_remove(vp, attr, xflags);
+}
+
+
+struct inode_operations linvfs_file_inode_operations = {
+	.permission		= linvfs_permission,
+	.truncate		= linvfs_truncate,
+	.revalidate		= linvfs_revalidate,
+	.setattr		= linvfs_setattr,
+	.setxattr		= linvfs_setxattr,
+	.getxattr		= linvfs_getxattr,
+	.listxattr		= linvfs_listxattr,
+	.removexattr		= linvfs_removexattr,
+};
+
+struct inode_operations linvfs_dir_inode_operations = {
+	.create			= linvfs_create,
+	.lookup			= linvfs_lookup,
+	.link			= linvfs_link,
+	.unlink			= linvfs_unlink,
+	.symlink		= linvfs_symlink,
+	.mkdir			= linvfs_mkdir,
+	.rmdir			= linvfs_rmdir,
+	.mknod			= linvfs_mknod,
+	.rename			= linvfs_rename,
+	.permission		= linvfs_permission,
+	.revalidate		= linvfs_revalidate,
+	.setattr		= linvfs_setattr,
+	.setxattr		= linvfs_setxattr,
+	.getxattr		= linvfs_getxattr,
+	.listxattr		= linvfs_listxattr,
+	.removexattr		= linvfs_removexattr,
+};
+
+struct inode_operations linvfs_symlink_inode_operations = {
+	.readlink		= linvfs_readlink,
+	.follow_link		= linvfs_follow_link,
+	.permission		= linvfs_permission,
+	.revalidate		= linvfs_revalidate,
+	.setattr		= linvfs_setattr,
+	.setxattr		= linvfs_setxattr,
+	.getxattr		= linvfs_getxattr,
+	.listxattr		= linvfs_listxattr,
+	.removexattr		= linvfs_removexattr,
+};
diff --git a/fs/xfs/linux-2.4/xfs_iops.h b/fs/xfs/linux-2.4/xfs_iops.h
new file mode 100644
index 00000000000000..bb2f3de96fecd9
--- /dev/null
+++ b/fs/xfs/linux-2.4/xfs_iops.h
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_IOPS_H__
+#define __XFS_IOPS_H__
+
+extern struct inode_operations linvfs_file_inode_operations;
+extern struct inode_operations linvfs_dir_inode_operations;
+extern struct inode_operations linvfs_symlink_inode_operations;
+
+extern struct file_operations linvfs_file_operations;
+extern struct file_operations linvfs_invis_file_operations;
+extern struct file_operations linvfs_dir_operations;
+
+extern struct address_space_operations linvfs_aops;
+
+extern int linvfs_get_block(struct inode *, long, struct buffer_head *, int);
+extern void linvfs_unwritten_done(struct buffer_head *, int);
+
+extern int xfs_ioctl(struct bhv_desc *, struct inode *, struct file *,
+                        int, unsigned int, unsigned long);
+
+#endif /* __XFS_IOPS_H__ */
diff --git a/fs/xfs/linux-2.4/xfs_linux.h b/fs/xfs/linux-2.4/xfs_linux.h
new file mode 100644
index 00000000000000..df560d559aee23
--- /dev/null
+++ b/fs/xfs/linux-2.4/xfs_linux.h
@@ -0,0 +1,388 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_LINUX__
+#define __XFS_LINUX__
+
+#include <linux/types.h>
+#include <linux/config.h>
+
+#undef __user
+#define __user
+
+/*
+ * Some types are conditional depending on the target system.
+ * XFS_BIG_BLKNOS needs block layer disk addresses to be 64 bits.
+ * XFS_BIG_INUMS needs the VFS inode number to be 64 bits, as well
+ * as requiring XFS_BIG_BLKNOS to be set.
+ */
+#define XFS_BIG_BLKNOS	0
+#define XFS_BIG_INUMS	0
+
+#include <xfs_types.h>
+#include <xfs_arch.h>
+
+#include <kmem.h>
+#include <mrlock.h>
+#include <spin.h>
+#include <sv.h>
+#include <mutex.h>
+#include <sema.h>
+#include <time.h>
+
+#include <support/qsort.h>
+#include <support/ktrace.h>
+#include <support/debug.h>
+#include <support/move.h>
+#include <support/uuid.h>
+
+#include <linux/mm.h>
+#include <linux/kernel.h>
+#include <linux/blkdev.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/file.h>
+#include <linux/swap.h>
+#include <linux/errno.h>
+#include <linux/locks.h>
+#include <linux/sched.h>
+#include <linux/bitops.h>
+#include <linux/major.h>
+#include <linux/pagemap.h>
+#include <linux/seq_file.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/proc_fs.h>
+
+#include <asm/page.h>
+#include <asm/div64.h>
+#include <asm/param.h>
+#include <asm/uaccess.h>
+#include <asm/byteorder.h>
+#include <asm/unaligned.h>
+
+#include <xfs_behavior.h>
+#include <xfs_vfs.h>
+#include <xfs_cred.h>
+#include <xfs_vnode.h>
+#include <xfs_stats.h>
+#include <xfs_sysctl.h>
+#include <xfs_iops.h>
+#include <xfs_super.h>
+#include <xfs_globals.h>
+#include <xfs_fs_subr.h>
+#include <xfs_lrw.h>
+#include <xfs_buf.h>
+
+/*
+ * Feature macros (disable/enable)
+ */
+#define HAVE_REFCACHE	/* 2.4 uses a NFS reference cache; 2.6+ does not */
+#undef  HAVE_SENDFILE	/* sendfile(2) is a 2.6+ system call, not in 2.4 */
+
+#ifndef EVMS_MAJOR
+#define EVMS_MAJOR 117
+#endif
+
+/*
+ * State flag for unwritten extent buffers.
+ *
+ * We need to be able to distinguish between these and delayed
+ * allocate buffers within XFS.  The generic IO path code does
+ * not need to distinguish - we use the BH_Delay flag for both
+ * delalloc and these ondisk-uninitialised buffers.
+ */
+#define BH_Unwritten		BH_PrivateStart
+#define buffer_unwritten(bh)	__buffer_state(bh, Unwritten)
+static inline void set_buffer_unwritten_io(struct buffer_head *bh)
+{
+	bh->b_end_io = linvfs_unwritten_done;
+}
+BUFFER_FNS(Unwritten, unwritten)
+
+#define xfs_refcache_size	xfs_params.refcache_size.val
+#define xfs_refcache_purge_count xfs_params.refcache_purge.val
+#define restricted_chown	xfs_params.restrict_chown.val
+#define irix_sgid_inherit	xfs_params.sgid_inherit.val
+#define irix_symlink_mode	xfs_params.symlink_mode.val
+#define xfs_panic_mask		xfs_params.panic_mask.val
+#define xfs_error_level		xfs_params.error_level.val
+#define xfs_syncd_centisecs	xfs_params.syncd_timer.val
+#define xfs_stats_clear		xfs_params.stats_clear.val
+#define xfs_inherit_sync	xfs_params.inherit_sync.val
+#define xfs_inherit_nodump	xfs_params.inherit_nodump.val
+#define xfs_inherit_noatime	xfs_params.inherit_noatim.val
+#define xfs_buf_timer_centisecs	xfs_params.xfs_buf_timer.val
+#define xfs_buf_age_centisecs	xfs_params.xfs_buf_age.val
+#define xfs_inherit_nosymlinks	xfs_params.inherit_nosym.val
+#define xfs_rotorstep		xfs_params.rotorstep.val
+
+#define current_cpu()		smp_processor_id()
+#define current_pid()		(current->pid)
+#define current_fsuid(cred)	(current->fsuid)
+#define current_fsgid(cred)	(current->fsgid)
+
+#define NBPP		PAGE_SIZE
+#define DPPSHFT		(PAGE_SHIFT - 9)
+#define NDPP		(1 << (PAGE_SHIFT - 9))
+#define dtop(DD)	(((DD) + NDPP - 1) >> DPPSHFT)
+#define dtopt(DD)	((DD) >> DPPSHFT)
+#define dpoff(DD)	((DD) & (NDPP-1))
+
+#define NBBY		8		/* number of bits per byte */
+#define	NBPC		PAGE_SIZE	/* Number of bytes per click */
+#define	BPCSHIFT	PAGE_SHIFT	/* LOG2(NBPC) if exact */
+
+/*
+ * Size of block device i/o is parameterized here.
+ * Currently the system supports page-sized i/o.
+ */
+#define	BLKDEV_IOSHIFT		BPCSHIFT
+#define	BLKDEV_IOSIZE		(1<<BLKDEV_IOSHIFT)
+/* number of BB's per block device block */
+#define	BLKDEV_BB		BTOBB(BLKDEV_IOSIZE)
+
+/* bytes to clicks */
+#define	btoc(x)		(((__psunsigned_t)(x)+(NBPC-1))>>BPCSHIFT)
+#define	btoct(x)	((__psunsigned_t)(x)>>BPCSHIFT)
+#define	btoc64(x)	(((__uint64_t)(x)+(NBPC-1))>>BPCSHIFT)
+#define	btoct64(x)	((__uint64_t)(x)>>BPCSHIFT)
+#define	io_btoc(x)	(((__psunsigned_t)(x)+(IO_NBPC-1))>>IO_BPCSHIFT)
+#define	io_btoct(x)	((__psunsigned_t)(x)>>IO_BPCSHIFT)
+
+/* off_t bytes to clicks */
+#define offtoc(x)       (((__uint64_t)(x)+(NBPC-1))>>BPCSHIFT)
+#define offtoct(x)      ((xfs_off_t)(x)>>BPCSHIFT)
+
+/* clicks to off_t bytes */
+#define	ctooff(x)	((xfs_off_t)(x)<<BPCSHIFT)
+
+/* clicks to bytes */
+#define	ctob(x)		((__psunsigned_t)(x)<<BPCSHIFT)
+#define btoct(x)        ((__psunsigned_t)(x)>>BPCSHIFT)
+#define	ctob64(x)	((__uint64_t)(x)<<BPCSHIFT)
+#define	io_ctob(x)	((__psunsigned_t)(x)<<IO_BPCSHIFT)
+
+/* bytes to clicks */
+#define btoc(x)         (((__psunsigned_t)(x)+(NBPC-1))>>BPCSHIFT)
+
+#ifndef CELL_CAPABLE
+#define FSC_NOTIFY_NAME_CHANGED(vp)
+#endif
+
+#ifndef ENOATTR
+#define ENOATTR		ENODATA		/* Attribute not found */
+#endif
+
+/* Note: EWRONGFS never visible outside the kernel */
+#define	EWRONGFS	EINVAL		/* Mount with wrong filesystem type */
+
+/*
+ * XXX EFSCORRUPTED needs a real value in errno.h. asm-i386/errno.h won't
+ *     return codes out of its known range in errno.
+ * XXX Also note: needs to be < 1000 and fairly unique on Linux (mustn't
+ *     conflict with any code we use already or any code a driver may use)
+ * XXX Some options (currently we do #2):
+ *	1/ New error code ["Filesystem is corrupted", _after_ glibc updated]
+ *	2/ 990 ["Unknown error 990"]
+ *	3/ EUCLEAN ["Structure needs cleaning"]
+ *	4/ Convert EFSCORRUPTED to EIO [just prior to return into userspace]
+ */
+#define EFSCORRUPTED    990		/* Filesystem is corrupted */
+
+#define SYNCHRONIZE()	barrier()
+#define __return_address __builtin_return_address(0)
+
+/*
+ * IRIX (BSD) quotactl makes use of separate commands for user/group,
+ * whereas on Linux the syscall encodes this information into the cmd
+ * field (see the QCMD macro in quota.h).  These macros help keep the
+ * code portable - they are not visible from the syscall interface.
+ */
+#define Q_XSETGQLIM	XQM_CMD(0x8)	/* set groups disk limits */
+#define Q_XGETGQUOTA	XQM_CMD(0x9)	/* get groups disk limits */
+
+/* IRIX uses a dynamic sizing algorithm (ndquot = 200 + numprocs*2) */
+/* we may well need to fine-tune this if it ever becomes an issue.  */
+#define DQUOT_MAX_HEURISTIC	1024	/* NR_DQUOTS */
+#define ndquot			DQUOT_MAX_HEURISTIC
+
+/* IRIX uses the current size of the name cache to guess a good value */
+/* - this isn't the same but is a good enough starting point for now. */
+#define DQUOT_HASH_HEURISTIC	files_stat.nr_files
+
+/* IRIX inodes maintain the project ID also, zero this field on Linux */
+#define DEFAULT_PROJID	0
+#define dfltprid	DEFAULT_PROJID
+
+#ifndef pgoff_t		/* 2.6 compat */
+#define pgoff_t		unsigned long
+#endif
+
+#define MAXPATHLEN	1024
+
+#define MIN(a,b)	(min(a,b))
+#define MAX(a,b)	(max(a,b))
+#define howmany(x, y)	(((x)+((y)-1))/(y))
+#define roundup(x, y)	((((x)+((y)-1))/(y))*(y))
+
+/*
+ * Juggle IRIX device numbers - still used in ondisk structures
+ */
+#define XFS_DEV_BITSMAJOR	14
+#define XFS_DEV_BITSMINOR	18
+#define XFS_DEV_MAXMAJ		0x1ff
+#define XFS_DEV_MAXMIN		0x3ffff
+#define XFS_DEV_MAJOR(dev)	((int)(((unsigned)(dev)>>XFS_DEV_BITSMINOR) \
+				    & XFS_DEV_MAXMAJ))
+#define XFS_DEV_MINOR(dev)	((int)((dev)&XFS_DEV_MAXMIN))
+#define XFS_MKDEV(major,minor) ((xfs_dev_t)(((major)<<XFS_DEV_BITSMINOR) \
+				    | (minor&XFS_DEV_MAXMIN)))
+
+#define XFS_DEV_TO_KDEVT(dev)	mk_kdev(XFS_DEV_MAJOR(dev),XFS_DEV_MINOR(dev))
+
+#define xfs_stack_trace()	dump_stack()
+
+#define xfs_itruncate_data(ip, off)	\
+	(-vmtruncate(LINVFS_GET_IP(XFS_ITOV(ip)), (off)))
+
+
+/* Move the kernel do_div definition off to one side */
+
+#if defined __i386__
+/* For ia32 we need to pull some tricks to get past various versions
+ * of the compiler which do not like us using do_div in the middle
+ * of large functions.
+ */
+static inline __u32 xfs_do_div(void *a, __u32 b, int n)
+{
+	__u32	mod;
+
+	switch (n) {
+		case 4:
+			mod = *(__u32 *)a % b;
+			*(__u32 *)a = *(__u32 *)a / b;
+			return mod;
+		case 8:
+			{
+			unsigned long __upper, __low, __high, __mod;
+			__u64	c = *(__u64 *)a;
+			__upper = __high = c >> 32;
+			__low = c;
+			if (__high) {
+				__upper = __high % (b);
+				__high = __high / (b);
+			}
+			asm("divl %2":"=a" (__low), "=d" (__mod):"rm" (b), "0" (__low), "1" (__upper));
+			asm("":"=A" (c):"a" (__low),"d" (__high));
+			*(__u64 *)a = c;
+			return __mod;
+			}
+	}
+
+	/* NOTREACHED */
+	return 0;
+}
+
+/* Side effect free 64 bit mod operation */
+static inline __u32 xfs_do_mod(void *a, __u32 b, int n)
+{
+	switch (n) {
+		case 4:
+			return *(__u32 *)a % b;
+		case 8:
+			{
+			unsigned long __upper, __low, __high, __mod;
+			__u64	c = *(__u64 *)a;
+			__upper = __high = c >> 32;
+			__low = c;
+			if (__high) {
+				__upper = __high % (b);
+				__high = __high / (b);
+			}
+			asm("divl %2":"=a" (__low), "=d" (__mod):"rm" (b), "0" (__low), "1" (__upper));
+			asm("":"=A" (c):"a" (__low),"d" (__high));
+			return __mod;
+			}
+	}
+
+	/* NOTREACHED */
+	return 0;
+}
+#else
+static inline __u32 xfs_do_div(void *a, __u32 b, int n)
+{
+	__u32	mod;
+
+	switch (n) {
+		case 4:
+			mod = *(__u32 *)a % b;
+			*(__u32 *)a = *(__u32 *)a / b;
+			return mod;
+		case 8:
+			mod = do_div(*(__u64 *)a, b);
+			return mod;
+	}
+
+	/* NOTREACHED */
+	return 0;
+}
+
+/* Side effect free 64 bit mod operation */
+static inline __u32 xfs_do_mod(void *a, __u32 b, int n)
+{
+	switch (n) {
+		case 4:
+			return *(__u32 *)a % b;
+		case 8:
+			{
+			__u64	c = *(__u64 *)a;
+			return do_div(c, b);
+			}
+	}
+
+	/* NOTREACHED */
+	return 0;
+}
+#endif
+
+#undef do_div
+#define do_div(a, b)	xfs_do_div(&(a), (b), sizeof(a))
+#define do_mod(a, b)	xfs_do_mod(&(a), (b), sizeof(a))
+
+static inline __uint64_t roundup_64(__uint64_t x, __uint32_t y)
+{
+	x += y - 1;
+	do_div(x, y);
+	return(x * y);
+}
+
+#endif /* __XFS_LINUX__ */
diff --git a/fs/xfs/linux-2.4/xfs_lrw.c b/fs/xfs/linux-2.4/xfs_lrw.c
new file mode 100644
index 00000000000000..ad65b6bf26173a
--- /dev/null
+++ b/fs/xfs/linux-2.4/xfs_lrw.c
@@ -0,0 +1,981 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+/*
+ *  fs/xfs/linux/xfs_lrw.c (Linux Read Write stuff)
+ *
+ */
+
+#include "xfs.h"
+
+#include "xfs_fs.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_alloc.h"
+#include "xfs_dmapi.h"
+#include "xfs_quota.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_bit.h"
+#include "xfs_rtalloc.h"
+#include "xfs_error.h"
+#include "xfs_itable.h"
+#include "xfs_rw.h"
+#include "xfs_refcache.h"
+#include "xfs_acl.h"
+#include "xfs_cap.h"
+#include "xfs_mac.h"
+#include "xfs_attr.h"
+#include "xfs_inode_item.h"
+#include "xfs_buf_item.h"
+#include "xfs_utils.h"
+#include "xfs_iomap.h"
+
+#include <linux/capability.h>
+
+
+#if defined(XFS_RW_TRACE)
+void
+xfs_rw_enter_trace(
+	int		tag,
+	xfs_iocore_t	*io,
+	const char	*buf,
+	size_t		size,
+	loff_t		offset,
+	int		ioflags)
+{
+	xfs_inode_t	*ip = XFS_IO_INODE(io);
+
+	if (ip->i_rwtrace == NULL)
+		return;
+	ktrace_enter(ip->i_rwtrace,
+		(void *)(unsigned long)tag,
+		(void *)ip,
+		(void *)((unsigned long)((ip->i_d.di_size >> 32) & 0xffffffff)),
+		(void *)((unsigned long)(ip->i_d.di_size & 0xffffffff)),
+		(void *)(__psint_t)buf,
+		(void *)((unsigned long)size),
+		(void *)((unsigned long)((offset >> 32) & 0xffffffff)),
+		(void *)((unsigned long)(offset & 0xffffffff)),
+		(void *)((unsigned long)ioflags),
+		(void *)((unsigned long)((io->io_new_size >> 32) & 0xffffffff)),
+		(void *)((unsigned long)(io->io_new_size & 0xffffffff)),
+		(void *)NULL,
+		(void *)NULL,
+		(void *)NULL,
+		(void *)NULL,
+		(void *)NULL);
+}
+
+void
+xfs_inval_cached_trace(
+	xfs_iocore_t	*io,
+	xfs_off_t	offset,
+	xfs_off_t	len,
+	xfs_off_t	first,
+	xfs_off_t	last)
+{
+	xfs_inode_t	*ip = XFS_IO_INODE(io);
+
+	if (ip->i_rwtrace == NULL)
+		return;
+	ktrace_enter(ip->i_rwtrace,
+		(void *)(__psint_t)XFS_INVAL_CACHED,
+		(void *)ip,
+		(void *)((unsigned long)((offset >> 32) & 0xffffffff)),
+		(void *)((unsigned long)(offset & 0xffffffff)),
+		(void *)((unsigned long)((len >> 32) & 0xffffffff)),
+		(void *)((unsigned long)(len & 0xffffffff)),
+		(void *)((unsigned long)((first >> 32) & 0xffffffff)),
+		(void *)((unsigned long)(first & 0xffffffff)),
+		(void *)((unsigned long)((last >> 32) & 0xffffffff)),
+		(void *)((unsigned long)(last & 0xffffffff)),
+		(void *)NULL,
+		(void *)NULL,
+		(void *)NULL,
+		(void *)NULL,
+		(void *)NULL,
+		(void *)NULL);
+}
+#endif
+
+/*
+ *	xfs_iozero
+ *
+ *	xfs_iozero clears the specified range of buffer supplied,
+ *	and marks all the affected blocks as valid and modified.  If
+ *	an affected block is not allocated, it will be allocated.  If
+ *	an affected block is not completely overwritten, and is not
+ *	valid before the operation, it will be read from disk before
+ *	being partially zeroed.
+ */
+STATIC int
+xfs_iozero(
+	struct inode		*ip,	/* inode			*/
+	loff_t			pos,	/* offset in file		*/
+	size_t			count,	/* size of data to zero		*/
+	loff_t			end_size)	/* max file size to set */
+{
+	unsigned		bytes;
+	struct page		*page;
+	struct address_space	*mapping;
+	char			*kaddr;
+	int			status;
+
+	mapping = ip->i_mapping;
+	do {
+		unsigned long index, offset;
+
+		offset = (pos & (PAGE_CACHE_SIZE -1)); /* Within page */
+		index = pos >> PAGE_CACHE_SHIFT;
+		bytes = PAGE_CACHE_SIZE - offset;
+		if (bytes > count)
+			bytes = count;
+
+		status = -ENOMEM;
+		page = grab_cache_page(mapping, index);
+		if (!page)
+			break;
+
+		kaddr = kmap(page);
+		status = mapping->a_ops->prepare_write(NULL, page, offset,
+							offset + bytes);
+		if (status) {
+			goto unlock;
+		}
+
+		memset((void *) (kaddr + offset), 0, bytes);
+		flush_dcache_page(page);
+		status = mapping->a_ops->commit_write(NULL, page, offset,
+							offset + bytes);
+		if (!status) {
+			pos += bytes;
+			count -= bytes;
+			if (pos > i_size_read(ip))
+				i_size_write(ip, pos < end_size ? pos : end_size);
+		}
+
+unlock:
+		kunmap(page);
+		unlock_page(page);
+		page_cache_release(page);
+		if (status)
+			break;
+	} while (count);
+
+	return (-status);
+}
+
+/*
+ * xfs_inval_cached_pages
+ * 
+ * This routine is responsible for keeping direct I/O and buffered I/O
+ * somewhat coherent.  From here we make sure that we're at least
+ * temporarily holding the inode I/O lock exclusively and then call
+ * the page cache to flush and invalidate any cached pages.  If there
+ * are no cached pages this routine will be very quick.
+ */
+void
+xfs_inval_cached_pages(
+	vnode_t		*vp,
+	xfs_iocore_t	*io,
+	xfs_off_t	offset,
+	int		write,
+	int		relock)
+{
+	xfs_mount_t	*mp;
+
+	if (!VN_CACHED(vp)) {
+		return;
+	}
+
+	mp = io->io_mount;
+
+	/*
+	 * We need to get the I/O lock exclusively in order
+	 * to safely invalidate pages and mappings.
+	 */
+	if (relock) {
+		XFS_IUNLOCK(mp, io, XFS_IOLOCK_SHARED);
+		XFS_ILOCK(mp, io, XFS_IOLOCK_EXCL);
+	}
+
+	/* Writing beyond EOF creates a hole that must be zeroed */
+	if (write && (offset > XFS_SIZE(mp, io))) {
+		xfs_fsize_t	isize;
+
+		XFS_ILOCK(mp, io, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
+		isize = XFS_SIZE(mp, io);
+		if (offset > isize) {
+			xfs_zero_eof(vp, io, offset, isize, offset);
+		}
+		XFS_IUNLOCK(mp, io, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
+	}
+
+	xfs_inval_cached_trace(io, offset, -1, ctooff(offtoct(offset)), -1);
+	VOP_FLUSHINVAL_PAGES(vp, ctooff(offtoct(offset)), -1, FI_REMAPF_LOCKED);
+	if (relock) {
+		XFS_ILOCK_DEMOTE(mp, io, XFS_IOLOCK_EXCL);
+	}
+}
+
+ssize_t			/* bytes read, or (-)  error */
+xfs_read(
+	bhv_desc_t      *bdp,
+	struct file	*file,
+	char		*buf,
+	size_t		size,
+	loff_t		*offset,
+	int		ioflags,
+	cred_t          *credp)
+{
+	ssize_t		ret;
+	xfs_fsize_t	n;
+	xfs_inode_t	*ip;
+	xfs_mount_t	*mp;
+
+	ip = XFS_BHVTOI(bdp);
+	mp = ip->i_mount;
+
+	XFS_STATS_INC(xs_read_calls);
+
+	if (unlikely(ioflags & IO_ISDIRECT)) {
+		if ((ssize_t)size < 0)
+			return -XFS_ERROR(EINVAL);
+		if (((__psint_t)buf & BBMASK) ||
+		    (*offset & mp->m_blockmask) ||
+		    (size & mp->m_blockmask)) {
+			if (*offset >= ip->i_d.di_size) {
+				return (0);
+			}
+			return -XFS_ERROR(EINVAL);
+		}
+	}
+
+	n = XFS_MAXIOFFSET(mp) - *offset;
+	if ((n <= 0) || (size == 0))
+		return 0;
+
+	if (n < size)
+		size = n;
+
+	if (XFS_FORCED_SHUTDOWN(mp)) {
+		return -EIO;
+	}
+
+	if (!(ioflags & IO_ISLOCKED))
+		xfs_ilock(ip, XFS_IOLOCK_SHARED);
+
+	if (DM_EVENT_ENABLED(BHV_TO_VNODE(bdp)->v_vfsp, ip, DM_EVENT_READ) &&
+	    !(ioflags & IO_INVIS)) {
+		int error;
+		vrwlock_t locktype = VRWLOCK_READ;
+		int dmflags = FILP_DELAY_FLAG(file) | DM_SEM_FLAG_RD(ioflags);
+
+		error = XFS_SEND_DATA(mp, DM_EVENT_READ, BHV_TO_VNODE(bdp), *offset, size,
+				      dmflags, &locktype);
+		if (error) {
+			if (!(ioflags & IO_ISLOCKED))
+				xfs_iunlock(ip, XFS_IOLOCK_SHARED);
+			return -error;
+		}
+	}
+
+	if (unlikely(ioflags & IO_ISDIRECT)) {
+		xfs_rw_enter_trace(XFS_DIORD_ENTER, &ip->i_iocore,
+					buf, size, *offset, ioflags);
+		ret = (*offset < ip->i_d.di_size) ?
+			do_generic_direct_read(file, buf, size, offset) : 0;
+		UPDATE_ATIME(file->f_dentry->d_inode);
+	} else {
+		xfs_rw_enter_trace(XFS_READ_ENTER, &ip->i_iocore,
+					buf, size, *offset, ioflags);
+		ret = generic_file_read(file, buf, size, offset);
+	}
+
+	if (ret > 0)
+		XFS_STATS_ADD(xs_read_bytes, ret);
+
+	if (!(ioflags & IO_ISLOCKED))
+		xfs_iunlock(ip, XFS_IOLOCK_SHARED);
+
+	if (unlikely(ioflags & IO_INVIS)) {
+		/* generic_file_read updates the atime but we need to
+		 * undo that because this I/O was supposed to be invisible.
+		 */
+		struct inode *inode = LINVFS_GET_IP(BHV_TO_VNODE(bdp));
+		inode->i_atime = ip->i_d.di_atime.t_sec;
+	} else {
+		xfs_ichgtime(ip, XFS_ICHGTIME_ACC);
+	}
+
+	return ret;
+}
+
+/*
+ * This routine is called to handle zeroing any space in the last
+ * block of the file that is beyond the EOF.  We do this since the
+ * size is being increased without writing anything to that block
+ * and we don't want anyone to read the garbage on the disk.
+ */
+STATIC int				/* error (positive) */
+xfs_zero_last_block(
+	struct inode	*ip,
+	xfs_iocore_t	*io,
+	xfs_off_t	offset,
+	xfs_fsize_t	isize,
+	xfs_fsize_t	end_size)
+{
+	xfs_fileoff_t	last_fsb;
+	xfs_mount_t	*mp;
+	int		nimaps;
+	int		zero_offset;
+	int		zero_len;
+	int		isize_fsb_offset;
+	int		error = 0;
+	xfs_bmbt_irec_t	imap;
+	loff_t		loff;
+	size_t		lsize;
+
+	ASSERT(ismrlocked(io->io_lock, MR_UPDATE) != 0);
+	ASSERT(offset > isize);
+
+	mp = io->io_mount;
+
+	isize_fsb_offset = XFS_B_FSB_OFFSET(mp, isize);
+	if (isize_fsb_offset == 0) {
+		/*
+		 * There are no extra bytes in the last block on disk to
+		 * zero, so return.
+		 */
+		return 0;
+	}
+
+	last_fsb = XFS_B_TO_FSBT(mp, isize);
+	nimaps = 1;
+	error = XFS_BMAPI(mp, NULL, io, last_fsb, 1, 0, NULL, 0, &imap,
+			  &nimaps, NULL);
+	if (error) {
+		return error;
+	}
+	ASSERT(nimaps > 0);
+	/*
+	 * If the block underlying isize is just a hole, then there
+	 * is nothing to zero.
+	 */
+	if (imap.br_startblock == HOLESTARTBLOCK) {
+		return 0;
+	}
+	/*
+	 * Zero the part of the last block beyond the EOF, and write it
+	 * out sync.  We need to drop the ilock while we do this so we
+	 * don't deadlock when the buffer cache calls back to us.
+	 */
+	XFS_IUNLOCK(mp, io, XFS_ILOCK_EXCL| XFS_EXTSIZE_RD);
+	loff = XFS_FSB_TO_B(mp, last_fsb);
+	lsize = XFS_FSB_TO_B(mp, 1);
+
+	zero_offset = isize_fsb_offset;
+	zero_len = mp->m_sb.sb_blocksize - isize_fsb_offset;
+
+	error = xfs_iozero(ip, loff + zero_offset, zero_len, end_size);
+
+	XFS_ILOCK(mp, io, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
+	ASSERT(error >= 0);
+	return error;
+}
+
+/*
+ * Zero any on disk space between the current EOF and the new,
+ * larger EOF.  This handles the normal case of zeroing the remainder
+ * of the last block in the file and the unusual case of zeroing blocks
+ * out beyond the size of the file.  This second case only happens
+ * with fixed size extents and when the system crashes before the inode
+ * size was updated but after blocks were allocated.  If fill is set,
+ * then any holes in the range are filled and zeroed.  If not, the holes
+ * are left alone as holes.
+ */
+
+int					/* error (positive) */
+xfs_zero_eof(
+	vnode_t		*vp,
+	xfs_iocore_t	*io,
+	xfs_off_t	offset,		/* starting I/O offset */
+	xfs_fsize_t	isize,		/* current inode size */
+	xfs_fsize_t	end_size)	/* terminal inode size */
+{
+	struct inode	*ip = LINVFS_GET_IP(vp);
+	xfs_fileoff_t	start_zero_fsb;
+	xfs_fileoff_t	end_zero_fsb;
+	xfs_fileoff_t	prev_zero_fsb;
+	xfs_fileoff_t	zero_count_fsb;
+	xfs_fileoff_t	last_fsb;
+	xfs_extlen_t	buf_len_fsb;
+	xfs_extlen_t	prev_zero_count;
+	xfs_mount_t	*mp;
+	int		nimaps;
+	int		error = 0;
+	xfs_bmbt_irec_t	imap;
+	loff_t		loff;
+	size_t		lsize;
+
+	ASSERT(ismrlocked(io->io_lock, MR_UPDATE));
+	ASSERT(ismrlocked(io->io_iolock, MR_UPDATE));
+
+	mp = io->io_mount;
+
+	/*
+	 * First handle zeroing the block on which isize resides.
+	 * We only zero a part of that block so it is handled specially.
+	 */
+	error = xfs_zero_last_block(ip, io, offset, isize, end_size);
+	if (error) {
+		ASSERT(ismrlocked(io->io_lock, MR_UPDATE));
+		ASSERT(ismrlocked(io->io_iolock, MR_UPDATE));
+		return error;
+	}
+
+	/*
+	 * Calculate the range between the new size and the old
+	 * where blocks needing to be zeroed may exist.  To get the
+	 * block where the last byte in the file currently resides,
+	 * we need to subtract one from the size and truncate back
+	 * to a block boundary.  We subtract 1 in case the size is
+	 * exactly on a block boundary.
+	 */
+	last_fsb = isize ? XFS_B_TO_FSBT(mp, isize - 1) : (xfs_fileoff_t)-1;
+	start_zero_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)isize);
+	end_zero_fsb = XFS_B_TO_FSBT(mp, offset - 1);
+	ASSERT((xfs_sfiloff_t)last_fsb < (xfs_sfiloff_t)start_zero_fsb);
+	if (last_fsb == end_zero_fsb) {
+		/*
+		 * The size was only incremented on its last block.
+		 * We took care of that above, so just return.
+		 */
+		return 0;
+	}
+
+	ASSERT(start_zero_fsb <= end_zero_fsb);
+	prev_zero_fsb = NULLFILEOFF;
+	prev_zero_count = 0;
+	while (start_zero_fsb <= end_zero_fsb) {
+		nimaps = 1;
+		zero_count_fsb = end_zero_fsb - start_zero_fsb + 1;
+		error = XFS_BMAPI(mp, NULL, io, start_zero_fsb, zero_count_fsb,
+				  0, NULL, 0, &imap, &nimaps, NULL);
+		if (error) {
+			ASSERT(ismrlocked(io->io_lock, MR_UPDATE));
+			ASSERT(ismrlocked(io->io_iolock, MR_UPDATE));
+			return error;
+		}
+		ASSERT(nimaps > 0);
+
+		if (imap.br_state == XFS_EXT_UNWRITTEN ||
+		    imap.br_startblock == HOLESTARTBLOCK) {
+			/*
+			 * This loop handles initializing pages that were
+			 * partially initialized by the code below this
+			 * loop. It basically zeroes the part of the page
+			 * that sits on a hole and sets the page as P_HOLE
+			 * and calls remapf if it is a mapped file.
+			 */
+			prev_zero_fsb = NULLFILEOFF;
+			prev_zero_count = 0;
+			start_zero_fsb = imap.br_startoff +
+					 imap.br_blockcount;
+			ASSERT(start_zero_fsb <= (end_zero_fsb + 1));
+			continue;
+		}
+
+		/*
+		 * There are blocks in the range requested.
+		 * Zero them a single write at a time.  We actually
+		 * don't zero the entire range returned if it is
+		 * too big and simply loop around to get the rest.
+		 * That is not the most efficient thing to do, but it
+		 * is simple and this path should not be exercised often.
+		 */
+		buf_len_fsb = XFS_FILBLKS_MIN(imap.br_blockcount,
+					      mp->m_writeio_blocks << 8);
+		/*
+		 * Drop the inode lock while we're doing the I/O.
+		 * We'll still have the iolock to protect us.
+		 */
+		XFS_IUNLOCK(mp, io, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
+
+		loff = XFS_FSB_TO_B(mp, start_zero_fsb);
+		lsize = XFS_FSB_TO_B(mp, buf_len_fsb);
+
+		error = xfs_iozero(ip, loff, lsize, end_size);
+
+		if (error) {
+			goto out_lock;
+		}
+
+		prev_zero_fsb = start_zero_fsb;
+		prev_zero_count = buf_len_fsb;
+		start_zero_fsb = imap.br_startoff + buf_len_fsb;
+		ASSERT(start_zero_fsb <= (end_zero_fsb + 1));
+
+		XFS_ILOCK(mp, io, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
+	}
+
+	return 0;
+
+out_lock:
+
+	XFS_ILOCK(mp, io, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
+	ASSERT(error >= 0);
+	return error;
+}
+
+ssize_t				/* bytes written, or (-) error */
+xfs_write(
+	bhv_desc_t      *bdp,
+	struct file	*file,
+	const char	*buf,
+	size_t		size,
+	loff_t		*offset,
+	int		ioflags,
+	cred_t          *credp)
+{
+	xfs_inode_t	*xip;
+	xfs_mount_t	*mp;
+	ssize_t		ret;
+	int		error = 0;
+	xfs_fsize_t     isize, new_size;
+	xfs_fsize_t	n, limit;
+	xfs_iocore_t    *io;
+	vnode_t		*vp;
+	int		iolock;
+	int		eventsent = 0;
+	vrwlock_t	locktype;
+
+	XFS_STATS_INC(xs_write_calls);
+
+	vp = BHV_TO_VNODE(bdp);
+	xip = XFS_BHVTOI(bdp);
+
+	if (size == 0)
+		return 0;
+
+	io = &xip->i_iocore;
+	mp = io->io_mount;
+
+	fs_check_frozen(vp->v_vfsp, SB_FREEZE_WRITE);
+
+	if (XFS_FORCED_SHUTDOWN(xip->i_mount)) {
+		return -EIO;
+	}
+
+	if (unlikely(ioflags & IO_ISDIRECT)) {
+		if (((__psint_t)buf & BBMASK) ||
+		    (*offset & mp->m_blockmask) ||
+		    (size  & mp->m_blockmask)) {
+			return XFS_ERROR(-EINVAL);
+		}
+		iolock = XFS_IOLOCK_SHARED;
+		locktype = VRWLOCK_WRITE_DIRECT;
+	} else {
+		iolock = XFS_IOLOCK_EXCL;
+		locktype = VRWLOCK_WRITE;
+	}
+
+	if (ioflags & IO_ISLOCKED)
+		iolock = 0;
+
+	xfs_ilock(xip, XFS_ILOCK_EXCL|iolock);
+
+	isize = xip->i_d.di_size;
+	limit = XFS_MAXIOFFSET(mp);
+
+	if (file->f_flags & O_APPEND)
+		*offset = isize;
+
+start:
+	n = limit - *offset;
+	if (n <= 0) {
+		xfs_iunlock(xip, XFS_ILOCK_EXCL|iolock);
+		return -EFBIG;
+	}
+	if (n < size)
+		size = n;
+
+	new_size = *offset + size;
+	if (new_size > isize) {
+		io->io_new_size = new_size;
+	}
+
+	if ((DM_EVENT_ENABLED(vp->v_vfsp, xip, DM_EVENT_WRITE) &&
+	    !(ioflags & IO_INVIS) && !eventsent)) {
+		loff_t		savedsize = *offset;
+		int dmflags = FILP_DELAY_FLAG(file) | DM_SEM_FLAG_RD(ioflags);
+
+		xfs_iunlock(xip, XFS_ILOCK_EXCL);
+		error = XFS_SEND_DATA(xip->i_mount, DM_EVENT_WRITE, vp,
+				      *offset, size,
+				      dmflags, &locktype);
+		if (error) {
+			if (iolock) xfs_iunlock(xip, iolock);
+			return -error;
+		}
+		xfs_ilock(xip, XFS_ILOCK_EXCL);
+		eventsent = 1;
+
+		/*
+		 * The iolock was dropped and reaquired in XFS_SEND_DATA
+		 * so we have to recheck the size when appending.
+		 * We will only "goto start;" once, since having sent the
+		 * event prevents another call to XFS_SEND_DATA, which is
+		 * what allows the size to change in the first place.
+		 */
+		if ((file->f_flags & O_APPEND) &&
+		    savedsize != xip->i_d.di_size) {
+			*offset = isize = xip->i_d.di_size;
+			goto start;
+		}
+	}
+
+	/*
+	 * If the offset is beyond the size of the file, we have a couple
+	 * of things to do. First, if there is already space allocated
+	 * we need to either create holes or zero the disk or ...
+	 *
+	 * If there is a page where the previous size lands, we need
+	 * to zero it out up to the new size.
+	 */
+
+	if (!(ioflags & IO_ISDIRECT) && (*offset > isize && isize)) {
+		error = xfs_zero_eof(BHV_TO_VNODE(bdp), io, *offset,
+			isize, *offset + size);
+		if (error) {
+			xfs_iunlock(xip, XFS_ILOCK_EXCL|iolock);
+			return(-error);
+		}
+	}
+	xfs_iunlock(xip, XFS_ILOCK_EXCL);
+
+	/*
+	 * If we're writing the file then make sure to clear the
+	 * setuid and setgid bits if the process is not being run
+	 * by root.  This keeps people from modifying setuid and
+	 * setgid binaries.
+	 */
+
+	if (((xip->i_d.di_mode & S_ISUID) ||
+	    ((xip->i_d.di_mode & (S_ISGID | S_IXGRP)) ==
+		(S_ISGID | S_IXGRP))) &&
+	     !capable(CAP_FSETID)) {
+		error = xfs_write_clear_setuid(xip);
+		if (error) {
+			xfs_iunlock(xip, iolock);
+			return -error;
+		}
+	}
+
+
+	if ((ssize_t) size < 0) {
+		ret = -EINVAL;
+		goto error;
+	}
+
+	if (!access_ok(VERIFY_READ, buf, size)) {
+		ret = -EINVAL;
+		goto error;
+	}
+
+retry:
+	if (unlikely(ioflags & IO_ISDIRECT)) {
+		xfs_inval_cached_pages(vp, io, *offset, 1, 1);
+		xfs_rw_enter_trace(XFS_DIOWR_ENTER,
+					io, buf, size, *offset, ioflags);
+		ret = do_generic_direct_write(file, buf, size, offset);
+	} else {
+		xfs_rw_enter_trace(XFS_WRITE_ENTER,
+					io, buf, size, *offset, ioflags);
+		ret = do_generic_file_write(file, buf, size, offset);
+	}
+
+	if (unlikely(ioflags & IO_INVIS)) {
+		/* generic_file_write updates the mtime/ctime but we need
+		 * to undo that because this I/O was supposed to be
+		 * invisible.
+		 */
+		struct inode	*inode = LINVFS_GET_IP(vp);
+		inode->i_mtime = xip->i_d.di_mtime.t_sec;
+		inode->i_ctime = xip->i_d.di_ctime.t_sec;
+	} else {
+		xfs_ichgtime(xip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+	}
+
+	if ((ret == -ENOSPC) &&
+	    DM_EVENT_ENABLED(vp->v_vfsp, xip, DM_EVENT_NOSPACE) &&
+	    !(ioflags & IO_INVIS)) {
+
+		xfs_rwunlock(bdp, locktype);
+		error = XFS_SEND_NAMESP(xip->i_mount, DM_EVENT_NOSPACE, vp,
+				DM_RIGHT_NULL, vp, DM_RIGHT_NULL, NULL, NULL,
+				0, 0, 0); /* Delay flag intentionally  unused */
+		if (error)
+			return -error;
+		xfs_rwlock(bdp, locktype);
+		*offset = xip->i_d.di_size;
+		goto retry;
+	}
+
+error:
+	if (ret <= 0) {
+		if (iolock)
+			xfs_rwunlock(bdp, locktype);
+		return ret;
+	}
+
+	XFS_STATS_ADD(xs_write_bytes, ret);
+
+	if (*offset > xip->i_d.di_size) {
+		xfs_ilock(xip, XFS_ILOCK_EXCL);
+		if (*offset > xip->i_d.di_size) {
+			struct inode	*inode = LINVFS_GET_IP(vp);
+
+			xip->i_d.di_size = *offset;
+			i_size_write(inode, *offset);
+			xip->i_update_core = 1;
+			xip->i_update_size = 1;
+			mark_inode_dirty_sync(inode);
+		}
+		xfs_iunlock(xip, XFS_ILOCK_EXCL);
+	}
+
+	/* Handle various SYNC-type writes */
+	if ((file->f_flags & O_SYNC) || IS_SYNC(file->f_dentry->d_inode)) {
+
+		/*
+		 * If we're treating this as O_DSYNC and we have not updated the
+		 * size, force the log.
+		 */
+
+		if (!(mp->m_flags & XFS_MOUNT_OSYNCISOSYNC)
+			&& !(xip->i_update_size)) {
+			/*
+			 * If an allocation transaction occurred
+			 * without extending the size, then we have to force
+			 * the log up the proper point to ensure that the
+			 * allocation is permanent.  We can't count on
+			 * the fact that buffered writes lock out direct I/O
+			 * writes - the direct I/O write could have extended
+			 * the size nontransactionally, then finished before
+			 * we started.  xfs_write_file will think that the file
+			 * didn't grow but the update isn't safe unless the
+			 * size change is logged.
+			 *
+			 * Force the log if we've committed a transaction
+			 * against the inode or if someone else has and
+			 * the commit record hasn't gone to disk (e.g.
+			 * the inode is pinned).  This guarantees that
+			 * all changes affecting the inode are permanent
+			 * when we return.
+			 */
+
+			xfs_inode_log_item_t *iip;
+			xfs_lsn_t lsn;
+
+			iip = xip->i_itemp;
+			if (iip && iip->ili_last_lsn) {
+				lsn = iip->ili_last_lsn;
+				xfs_log_force(mp, lsn,
+						XFS_LOG_FORCE | XFS_LOG_SYNC);
+			} else if (xfs_ipincount(xip) > 0) {
+				xfs_log_force(mp, (xfs_lsn_t)0,
+						XFS_LOG_FORCE | XFS_LOG_SYNC);
+			}
+
+		} else {
+			xfs_trans_t	*tp;
+
+			/*
+			 * O_SYNC or O_DSYNC _with_ a size update are handled
+			 * the same way.
+			 *
+			 * If the write was synchronous then we need to make
+			 * sure that the inode modification time is permanent.
+			 * We'll have updated the timestamp above, so here
+			 * we use a synchronous transaction to log the inode.
+			 * It's not fast, but it's necessary.
+			 *
+			 * If this a dsync write and the size got changed
+			 * non-transactionally, then we need to ensure that
+			 * the size change gets logged in a synchronous
+			 * transaction.
+			 */
+
+			tp = xfs_trans_alloc(mp, XFS_TRANS_WRITE_SYNC);
+			if ((error = xfs_trans_reserve(tp, 0,
+						      XFS_SWRITE_LOG_RES(mp),
+						      0, 0, 0))) {
+				/* Transaction reserve failed */
+				xfs_trans_cancel(tp, 0);
+			} else {
+				/* Transaction reserve successful */
+				xfs_ilock(xip, XFS_ILOCK_EXCL);
+				xfs_trans_ijoin(tp, xip, XFS_ILOCK_EXCL);
+				xfs_trans_ihold(tp, xip);
+				xfs_trans_log_inode(tp, xip, XFS_ILOG_CORE);
+				xfs_trans_set_sync(tp);
+				error = xfs_trans_commit(tp, 0, NULL);
+				xfs_iunlock(xip, XFS_ILOCK_EXCL);
+			}
+		}
+	} /* (ioflags & O_SYNC) */
+
+	/*
+	 * If we are coming from an nfsd thread then insert into the
+	 * reference cache.
+	 */
+
+	if (!strcmp(current->comm, "nfsd"))
+		xfs_refcache_insert(xip);
+
+	/* Drop lock this way - the old refcache release is in here */
+	if (iolock)
+		xfs_rwunlock(bdp, locktype);
+
+	return(ret);
+}
+
+/*
+ * All xfs metadata buffers except log state machine buffers
+ * get this attached as their b_bdstrat callback function.
+ * This is so that we can catch a buffer
+ * after prematurely unpinning it to forcibly shutdown the filesystem.
+ */
+int
+xfs_bdstrat_cb(struct xfs_buf *bp)
+{
+	xfs_mount_t	*mp;
+
+	mp = XFS_BUF_FSPRIVATE3(bp, xfs_mount_t *);
+	if (!XFS_FORCED_SHUTDOWN(mp)) {
+		pagebuf_iorequest(bp);
+		return 0;
+	} else {
+		xfs_buftrace("XFS__BDSTRAT IOERROR", bp);
+		/*
+		 * Metadata write that didn't get logged but
+		 * written delayed anyway. These aren't associated
+		 * with a transaction, and can be ignored.
+		 */
+		if (XFS_BUF_IODONE_FUNC(bp) == NULL &&
+		    (XFS_BUF_ISREAD(bp)) == 0)
+			return (xfs_bioerror_relse(bp));
+		else
+			return (xfs_bioerror(bp));
+	}
+}
+
+
+int
+xfs_bmap(bhv_desc_t	*bdp,
+	xfs_off_t	offset,
+	ssize_t		count,
+	int		flags,
+	xfs_iomap_t	*iomapp,
+	int		*niomaps)
+{
+	xfs_inode_t	*ip = XFS_BHVTOI(bdp);
+	xfs_iocore_t	*io = &ip->i_iocore;
+
+	ASSERT((ip->i_d.di_mode & S_IFMT) == S_IFREG);
+	ASSERT(((ip->i_d.di_flags & XFS_DIFLAG_REALTIME) != 0) ==
+	       ((ip->i_iocore.io_flags & XFS_IOCORE_RT) != 0));
+
+	return xfs_iomap(io, offset, count, flags, iomapp, niomaps);
+}
+
+/*
+ * Wrapper around bdstrat so that we can stop data
+ * from going to disk in case we are shutting down the filesystem.
+ * Typically user data goes thru this path; one of the exceptions
+ * is the superblock.
+ */
+int
+xfsbdstrat(
+	struct xfs_mount	*mp,
+	struct xfs_buf		*bp)
+{
+	ASSERT(mp);
+	if (!XFS_FORCED_SHUTDOWN(mp)) {
+		/* Grio redirection would go here
+		 * if (XFS_BUF_IS_GRIO(bp)) {
+		 */
+
+		pagebuf_iorequest(bp);
+		return 0;
+	}
+
+	xfs_buftrace("XFSBDSTRAT IOERROR", bp);
+	return (xfs_bioerror_relse(bp));
+}
+
+/*
+ * If the underlying (data/log/rt) device is readonly, there are some
+ * operations that cannot proceed.
+ */
+int
+xfs_dev_is_read_only(
+	xfs_mount_t		*mp,
+	char			*message)
+{
+	if (xfs_readonly_buftarg(mp->m_ddev_targp) ||
+	    xfs_readonly_buftarg(mp->m_logdev_targp) ||
+	    (mp->m_rtdev_targp && xfs_readonly_buftarg(mp->m_rtdev_targp))) {
+		cmn_err(CE_NOTE,
+			"XFS: %s required on read-only device.", message);
+		cmn_err(CE_NOTE,
+			"XFS: write access unavailable, cannot proceed.");
+		return EROFS;
+	}
+	return 0;
+}
diff --git a/fs/xfs/linux-2.4/xfs_lrw.h b/fs/xfs/linux-2.4/xfs_lrw.h
new file mode 100644
index 00000000000000..1ee62d3af5de3f
--- /dev/null
+++ b/fs/xfs/linux-2.4/xfs_lrw.h
@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_LRW_H__
+#define __XFS_LRW_H__
+
+struct vnode;
+struct bhv_desc;
+struct xfs_mount;
+struct xfs_iocore;
+struct xfs_inode;
+struct xfs_bmbt_irec;
+struct xfs_buf;
+struct xfs_iomap;
+
+#if defined(XFS_RW_TRACE)
+/*
+ * Defines for the trace mechanisms in xfs_lrw.c.
+ */
+#define	XFS_RW_KTRACE_SIZE	128
+
+#define	XFS_READ_ENTER		1
+#define	XFS_WRITE_ENTER		2
+#define XFS_IOMAP_READ_ENTER	3
+#define	XFS_IOMAP_WRITE_ENTER	4
+#define	XFS_IOMAP_READ_MAP	5
+#define	XFS_IOMAP_WRITE_MAP	6
+#define	XFS_IOMAP_WRITE_NOSPACE	7
+#define	XFS_ITRUNC_START	8
+#define	XFS_ITRUNC_FINISH1	9
+#define	XFS_ITRUNC_FINISH2	10
+#define	XFS_CTRUNC1		11
+#define	XFS_CTRUNC2		12
+#define	XFS_CTRUNC3		13
+#define	XFS_CTRUNC4		14
+#define	XFS_CTRUNC5		15
+#define	XFS_CTRUNC6		16
+#define	XFS_BUNMAPI		17
+#define	XFS_INVAL_CACHED	18
+#define	XFS_DIORD_ENTER		19
+#define	XFS_DIOWR_ENTER		20
+#define	XFS_SENDFILE_ENTER	21
+#define	XFS_WRITEPAGE_ENTER	22
+#define	XFS_RELEASEPAGE_ENTER	23
+#define	XFS_IOMAP_ALLOC_ENTER	24
+#define	XFS_IOMAP_ALLOC_MAP	25
+#define	XFS_IOMAP_UNWRITTEN	26
+extern void xfs_rw_enter_trace(int, struct xfs_iocore *,
+			const char *, size_t, loff_t, int);
+extern void xfs_inval_cached_trace(struct xfs_iocore *,
+			xfs_off_t, xfs_off_t, xfs_off_t, xfs_off_t);
+#else
+#define xfs_rw_enter_trace(tag, io, buf, size, offset, ioflags)
+#define xfs_inval_cached_trace(io, offset, len, first, last)
+#endif
+
+/*
+ * Maximum count of bmaps used by read and write paths.
+ */
+#define	XFS_MAX_RW_NBMAPS	4
+
+extern int xfs_bmap(struct bhv_desc *, xfs_off_t, ssize_t, int,
+			struct xfs_iomap *, int *);
+extern int xfsbdstrat(struct xfs_mount *, struct xfs_buf *);
+extern int xfs_bdstrat_cb(struct xfs_buf *);
+
+extern int xfs_zero_eof(struct vnode *, struct xfs_iocore *, xfs_off_t,
+				xfs_fsize_t, xfs_fsize_t);
+extern void xfs_inval_cached_pages(struct vnode	*, struct xfs_iocore *,
+				xfs_off_t, int, int);
+extern ssize_t xfs_read(struct bhv_desc *, struct file *, char	*,
+				size_t, loff_t *, int, struct cred *);
+extern ssize_t xfs_write(struct bhv_desc *, struct file *, const char *,
+				size_t, loff_t *, int, struct cred *);
+
+extern int xfs_dev_is_read_only(struct xfs_mount *, char *);
+
+#define XFS_FSB_TO_DB_IO(io,fsb) \
+		(((io)->io_flags & XFS_IOCORE_RT) ? \
+		 XFS_FSB_TO_BB((io)->io_mount, (fsb)) : \
+		 XFS_FSB_TO_DADDR((io)->io_mount, (fsb)))
+
+#endif	/* __XFS_LRW_H__ */
diff --git a/fs/xfs/linux-2.4/xfs_stats.c b/fs/xfs/linux-2.4/xfs_stats.c
new file mode 100644
index 00000000000000..f6b5ee2de4cf6b
--- /dev/null
+++ b/fs/xfs/linux-2.4/xfs_stats.c
@@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include <linux/proc_fs.h>
+
+struct xfsstats xfsstats;
+
+STATIC int
+xfs_read_xfsstats(
+	char		*buffer,
+	char		**start,
+	off_t		offset,
+	int		count,
+	int		*eof,
+	void		*data)
+{
+	int		i, j, len;
+	static struct xstats_entry {
+		char	*desc;
+		int	endpoint;
+	} xstats[] = {
+		{ "extent_alloc",	XFSSTAT_END_EXTENT_ALLOC	},
+		{ "abt",		XFSSTAT_END_ALLOC_BTREE		},
+		{ "blk_map",		XFSSTAT_END_BLOCK_MAPPING	},
+		{ "bmbt",		XFSSTAT_END_BLOCK_MAP_BTREE	},
+		{ "dir",		XFSSTAT_END_DIRECTORY_OPS	},
+		{ "trans",		XFSSTAT_END_TRANSACTIONS	},
+		{ "ig",			XFSSTAT_END_INODE_OPS		},
+		{ "log",		XFSSTAT_END_LOG_OPS		},
+		{ "push_ail",		XFSSTAT_END_TAIL_PUSHING	},
+		{ "xstrat",		XFSSTAT_END_WRITE_CONVERT	},
+		{ "rw",			XFSSTAT_END_READ_WRITE_OPS	},
+		{ "attr",		XFSSTAT_END_ATTRIBUTE_OPS	},
+		{ "icluster",		XFSSTAT_END_INODE_CLUSTER	},
+		{ "vnodes",		XFSSTAT_END_VNODE_OPS		},
+		{ "buf",		XFSSTAT_END_BUF			},
+	};
+
+	for (i=j=len = 0; i < sizeof(xstats)/sizeof(struct xstats_entry); i++) {
+		len += sprintf(buffer + len, xstats[i].desc);
+		/* inner loop does each group */
+		while (j < xstats[i].endpoint) {
+			len += sprintf(buffer + len, " %u",
+					*(((__u32*)&xfsstats) + j));
+			j++;
+		}
+		buffer[len++] = '\n';
+	}
+	/* extra precision counters */
+	len += sprintf(buffer + len, "xpc %Lu %Lu %Lu\n",
+			xfsstats.xs_xstrat_bytes,
+			xfsstats.xs_write_bytes,
+			xfsstats.xs_read_bytes);
+	len += sprintf(buffer + len, "debug %u\n",
+#if defined(DEBUG)
+		1);
+#else
+		0);
+#endif
+
+	if (offset >= len) {
+		*start = buffer;
+		*eof = 1;
+		return 0;
+	}
+	*start = buffer + offset;
+	if ((len -= offset) > count)
+		return count;
+	*eof = 1;
+
+	return len;
+}
+
+void
+xfs_init_procfs(void)
+{
+	if (!proc_mkdir("fs/xfs", 0))
+		return;
+	create_proc_read_entry("fs/xfs/stat", 0, 0, xfs_read_xfsstats, NULL);
+}
+
+void
+xfs_cleanup_procfs(void)
+{
+	remove_proc_entry("fs/xfs/stat", NULL);
+	remove_proc_entry("fs/xfs", NULL);
+}
diff --git a/fs/xfs/linux-2.4/xfs_stats.h b/fs/xfs/linux-2.4/xfs_stats.h
new file mode 100644
index 00000000000000..11a8c4850612d1
--- /dev/null
+++ b/fs/xfs/linux-2.4/xfs_stats.h
@@ -0,0 +1,160 @@
+/*
+ * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_STATS_H__
+#define __XFS_STATS_H__
+
+
+#if defined(CONFIG_PROC_FS) && !defined(XFS_STATS_OFF)
+
+/*
+ * XFS global statistics
+ */
+struct xfsstats {
+# define XFSSTAT_END_EXTENT_ALLOC	4
+	__uint32_t		xs_allocx;
+	__uint32_t		xs_allocb;
+	__uint32_t		xs_freex;
+	__uint32_t		xs_freeb;
+# define XFSSTAT_END_ALLOC_BTREE	(XFSSTAT_END_EXTENT_ALLOC+4)
+	__uint32_t		xs_abt_lookup;
+	__uint32_t		xs_abt_compare;
+	__uint32_t		xs_abt_insrec;
+	__uint32_t		xs_abt_delrec;
+# define XFSSTAT_END_BLOCK_MAPPING	(XFSSTAT_END_ALLOC_BTREE+7)
+	__uint32_t		xs_blk_mapr;
+	__uint32_t		xs_blk_mapw;
+	__uint32_t		xs_blk_unmap;
+	__uint32_t		xs_add_exlist;
+	__uint32_t		xs_del_exlist;
+	__uint32_t		xs_look_exlist;
+	__uint32_t		xs_cmp_exlist;
+# define XFSSTAT_END_BLOCK_MAP_BTREE	(XFSSTAT_END_BLOCK_MAPPING+4)
+	__uint32_t		xs_bmbt_lookup;
+	__uint32_t		xs_bmbt_compare;
+	__uint32_t		xs_bmbt_insrec;
+	__uint32_t		xs_bmbt_delrec;
+# define XFSSTAT_END_DIRECTORY_OPS	(XFSSTAT_END_BLOCK_MAP_BTREE+4)
+	__uint32_t		xs_dir_lookup;
+	__uint32_t		xs_dir_create;
+	__uint32_t		xs_dir_remove;
+	__uint32_t		xs_dir_getdents;
+# define XFSSTAT_END_TRANSACTIONS	(XFSSTAT_END_DIRECTORY_OPS+3)
+	__uint32_t		xs_trans_sync;
+	__uint32_t		xs_trans_async;
+	__uint32_t		xs_trans_empty;
+# define XFSSTAT_END_INODE_OPS		(XFSSTAT_END_TRANSACTIONS+7)
+	__uint32_t		xs_ig_attempts;
+	__uint32_t		xs_ig_found;
+	__uint32_t		xs_ig_frecycle;
+	__uint32_t		xs_ig_missed;
+	__uint32_t		xs_ig_dup;
+	__uint32_t		xs_ig_reclaims;
+	__uint32_t		xs_ig_attrchg;
+# define XFSSTAT_END_LOG_OPS		(XFSSTAT_END_INODE_OPS+5)
+	__uint32_t		xs_log_writes;
+	__uint32_t		xs_log_blocks;
+	__uint32_t		xs_log_noiclogs;
+	__uint32_t		xs_log_force;
+	__uint32_t		xs_log_force_sleep;
+# define XFSSTAT_END_TAIL_PUSHING	(XFSSTAT_END_LOG_OPS+10)
+	__uint32_t		xs_try_logspace;
+	__uint32_t		xs_sleep_logspace;
+	__uint32_t		xs_push_ail;
+	__uint32_t		xs_push_ail_success;
+	__uint32_t		xs_push_ail_pushbuf;
+	__uint32_t		xs_push_ail_pinned;
+	__uint32_t		xs_push_ail_locked;
+	__uint32_t		xs_push_ail_flushing;
+	__uint32_t		xs_push_ail_restarts;
+	__uint32_t		xs_push_ail_flush;
+# define XFSSTAT_END_WRITE_CONVERT	(XFSSTAT_END_TAIL_PUSHING+2)
+	__uint32_t		xs_xstrat_quick;
+	__uint32_t		xs_xstrat_split;
+# define XFSSTAT_END_READ_WRITE_OPS	(XFSSTAT_END_WRITE_CONVERT+2)
+	__uint32_t		xs_write_calls;
+	__uint32_t		xs_read_calls;
+# define XFSSTAT_END_ATTRIBUTE_OPS	(XFSSTAT_END_READ_WRITE_OPS+4)
+	__uint32_t		xs_attr_get;
+	__uint32_t		xs_attr_set;
+	__uint32_t		xs_attr_remove;
+	__uint32_t		xs_attr_list;
+# define XFSSTAT_END_INODE_CLUSTER	(XFSSTAT_END_ATTRIBUTE_OPS+3)
+	__uint32_t		xs_iflush_count;
+	__uint32_t		xs_icluster_flushcnt;
+	__uint32_t		xs_icluster_flushinode;
+# define XFSSTAT_END_VNODE_OPS		(XFSSTAT_END_INODE_CLUSTER+8)
+	__uint32_t		vn_active;	/* # vnodes not on free lists */
+	__uint32_t		vn_alloc;	/* # times vn_alloc called */
+	__uint32_t		vn_get;		/* # times vn_get called */
+	__uint32_t		vn_hold;	/* # times vn_hold called */
+	__uint32_t		vn_rele;	/* # times vn_rele called */
+	__uint32_t		vn_reclaim;	/* # times vn_reclaim called */
+	__uint32_t		vn_remove;	/* # times vn_remove called */
+	__uint32_t		vn_free;	/* # times vn_free called */
+#define XFSSTAT_END_BUF			(XFSSTAT_END_VNODE_OPS+9)
+	__uint32_t		pb_get;
+	__uint32_t		pb_create;
+	__uint32_t		pb_get_locked;
+	__uint32_t		pb_get_locked_waited;
+	__uint32_t		pb_busy_locked;
+	__uint32_t		pb_miss_locked;
+	__uint32_t		pb_page_retries;
+	__uint32_t		pb_page_found;
+	__uint32_t		pb_get_read;
+/* Extra precision counters */
+	__uint64_t		xs_xstrat_bytes;
+	__uint64_t		xs_write_bytes;
+	__uint64_t		xs_read_bytes;
+};
+
+extern struct xfsstats xfsstats;
+
+# define XFS_STATS_INC(count)		( xfsstats.count++ )
+# define XFS_STATS_DEC(count)		( xfsstats.count-- )
+# define XFS_STATS_ADD(count, inc)	( xfsstats.count += (inc) )
+
+extern void xfs_init_procfs(void);
+extern void xfs_cleanup_procfs(void);
+
+
+#else	/* !CONFIG_PROC_FS */
+
+# define XFS_STATS_INC(count)
+# define XFS_STATS_DEC(count)
+# define XFS_STATS_ADD(count, inc)
+
+static __inline void xfs_init_procfs(void) { };
+static __inline void xfs_cleanup_procfs(void) { };
+
+#endif	/* !CONFIG_PROC_FS */
+
+#endif /* __XFS_STATS_H__ */
diff --git a/fs/xfs/linux-2.4/xfs_super.c b/fs/xfs/linux-2.4/xfs_super.c
new file mode 100644
index 00000000000000..7ce75cdcdd02c8
--- /dev/null
+++ b/fs/xfs/linux-2.4/xfs_super.c
@@ -0,0 +1,1066 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_clnt.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_alloc.h"
+#include "xfs_dmapi.h"
+#include "xfs_quota.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_bit.h"
+#include "xfs_rtalloc.h"
+#include "xfs_error.h"
+#include "xfs_itable.h"
+#include "xfs_rw.h"
+#include "xfs_acl.h"
+#include "xfs_cap.h"
+#include "xfs_mac.h"
+#include "xfs_attr.h"
+#include "xfs_buf_item.h"
+#include "xfs_utils.h"
+#include "xfs_version.h"
+
+#include <linux/init.h>
+
+STATIC struct quotactl_ops linvfs_qops;
+STATIC struct super_operations linvfs_sops;
+STATIC kmem_zone_t *linvfs_inode_zone;
+STATIC kmem_shaker_t xfs_inode_shaker;
+
+STATIC struct xfs_mount_args *
+xfs_args_allocate(
+	struct super_block	*sb)
+{
+	struct xfs_mount_args	*args;
+
+	args = kmem_zalloc(sizeof(struct xfs_mount_args), KM_SLEEP);
+	args->logbufs = args->logbufsize = -1;
+	strncpy(args->fsname, bdevname(sb->s_dev), MAXNAMELEN);
+
+	/* Copy the already-parsed mount(2) flags we're interested in */
+	if (sb->s_flags & MS_NOATIME)
+		args->flags |= XFSMNT_NOATIME;
+
+	/* Default to 32 bit inodes on Linux all the time */
+	args->flags |= XFSMNT_32BITINODES;
+
+	return args;
+}
+
+__uint64_t
+xfs_max_file_offset(
+	unsigned int		blockshift)
+{
+	unsigned int		pagefactor = 1;
+	unsigned int		bitshift = BITS_PER_LONG - 1;
+
+	/* Figure out maximum filesize, on Linux this can depend on
+	 * the filesystem blocksize (on 32 bit platforms).
+	 * __block_prepare_write does this in an [unsigned] long...
+	 *      page->index << (PAGE_CACHE_SHIFT - bbits)
+	 * So, for page sized blocks (4K on 32 bit platforms),
+	 * this wraps at around 8Tb (hence MAX_LFS_FILESIZE which is
+	 *      (((u64)PAGE_CACHE_SIZE << (BITS_PER_LONG-1))-1)
+	 * but for smaller blocksizes it is less (bbits = log2 bsize).
+	 * Note1: get_block_t takes a long (implicit cast from above)
+	 * Note2: The Large Block Device (LBD and HAVE_SECTOR_T) patch
+	 * can optionally convert the [unsigned] long from above into
+	 * an [unsigned] long long.
+	 */
+
+#if BITS_PER_LONG == 32
+	pagefactor = PAGE_CACHE_SIZE >> (PAGE_CACHE_SHIFT - blockshift);
+#endif
+
+	return (((__uint64_t)pagefactor) << bitshift) - 1;
+}
+
+STATIC __inline__ void
+xfs_set_inodeops(
+	struct inode		*inode)
+{
+	vnode_t			*vp = LINVFS_GET_VP(inode);
+
+	if (vp->v_type == VNON) {
+		vn_mark_bad(vp);
+	} else if (S_ISREG(inode->i_mode)) {
+		inode->i_op = &linvfs_file_inode_operations;
+		inode->i_fop = &linvfs_file_operations;
+		inode->i_mapping->a_ops = &linvfs_aops;
+	} else if (S_ISDIR(inode->i_mode)) {
+		inode->i_op = &linvfs_dir_inode_operations;
+		inode->i_fop = &linvfs_dir_operations;
+	} else if (S_ISLNK(inode->i_mode)) {
+		inode->i_op = &linvfs_symlink_inode_operations;
+		if (inode->i_blocks)
+			inode->i_mapping->a_ops = &linvfs_aops;
+	} else {
+		inode->i_op = &linvfs_file_inode_operations;
+		init_special_inode(inode, inode->i_mode,
+					kdev_t_to_nr(inode->i_rdev));
+	}
+}
+
+STATIC __inline__ void
+xfs_revalidate_inode(
+	xfs_mount_t		*mp,
+	vnode_t			*vp,
+	xfs_inode_t		*ip)
+{
+	struct inode		*inode = LINVFS_GET_IP(vp);
+
+	inode->i_mode	= (ip->i_d.di_mode & MODEMASK) | VTTOIF(vp->v_type);
+	inode->i_nlink	= ip->i_d.di_nlink;
+	inode->i_uid	= ip->i_d.di_uid;
+	inode->i_gid	= ip->i_d.di_gid;
+	if (((1 << vp->v_type) & ((1<<VBLK) | (1<<VCHR))) == 0) {
+		inode->i_rdev = NODEV;
+	} else {
+		xfs_dev_t dev = ip->i_df.if_u2.if_rdev;
+		inode->i_rdev = XFS_DEV_TO_KDEVT(dev);
+	}
+	inode->i_blksize = PAGE_CACHE_SIZE;
+	inode->i_generation = ip->i_d.di_gen;
+	i_size_write(inode, ip->i_d.di_size);
+	inode->i_blocks =
+		XFS_FSB_TO_BB(mp, ip->i_d.di_nblocks + ip->i_delayed_blks);
+	inode->i_atime	= ip->i_d.di_atime.t_sec;
+	inode->i_mtime	= ip->i_d.di_mtime.t_sec;
+	inode->i_ctime	= ip->i_d.di_ctime.t_sec;
+	if (ip->i_d.di_flags & XFS_DIFLAG_IMMUTABLE)
+		inode->i_flags |= S_IMMUTABLE;
+	else
+		inode->i_flags &= ~S_IMMUTABLE;
+	if (ip->i_d.di_flags & XFS_DIFLAG_APPEND)
+		inode->i_flags |= S_APPEND;
+	else
+		inode->i_flags &= ~S_APPEND;
+	if (ip->i_d.di_flags & XFS_DIFLAG_SYNC)
+		inode->i_flags |= S_SYNC;
+	else
+		inode->i_flags &= ~S_SYNC;
+	if (ip->i_d.di_flags & XFS_DIFLAG_NOATIME)
+		inode->i_flags |= S_NOATIME;
+	else
+		inode->i_flags &= ~S_NOATIME;
+
+	vp->v_flag &= ~VMODIFIED;
+}
+
+void
+xfs_initialize_vnode(
+	bhv_desc_t		*bdp,
+	vnode_t			*vp,
+	bhv_desc_t		*inode_bhv,
+	int			unlock)
+{
+	xfs_inode_t		*ip = XFS_BHVTOI(inode_bhv);
+	struct inode		*inode = LINVFS_GET_IP(vp);
+
+	if (!inode_bhv->bd_vobj) {
+		vp->v_vfsp = bhvtovfs(bdp);
+		bhv_desc_init(inode_bhv, ip, vp, &xfs_vnodeops);
+		bhv_insert(VN_BHV_HEAD(vp), inode_bhv);
+	}
+
+	/*
+	 * We need to set the ops vectors, and unlock the inode, but if
+	 * we have been called during the new inode create process, it is
+	 * too early to fill in the Linux inode.  We will get called a
+	 * second time once the inode is properly set up, and then we can
+	 * finish our work.
+	 */
+	if (ip->i_d.di_mode != 0 && unlock && (inode->i_state & I_NEW)) {
+		vp->v_type = IFTOVT(ip->i_d.di_mode);
+		xfs_revalidate_inode(XFS_BHVTOM(bdp), vp, ip);
+		xfs_set_inodeops(inode);
+
+		ip->i_flags &= ~XFS_INEW;
+		barrier();
+
+		unlock_new_inode(inode);
+	}
+}
+
+int
+xfs_inode_shake(
+	int		priority,
+	unsigned int	gfp_mask)
+{
+	int		pages;
+
+	pages = kmem_zone_shrink(linvfs_inode_zone);
+	pages += kmem_zone_shrink(xfs_inode_zone);
+	return pages;
+}
+
+struct inode *
+xfs_get_inode(
+	bhv_desc_t	*bdp,
+	xfs_ino_t	ino,
+	int		flags)
+{
+	struct vfs	*vfsp = bhvtovfs(bdp);
+
+	return iget_locked(vfsp->vfs_super, ino);
+}
+
+struct dentry *
+d_alloc_anon(struct inode *inode)
+{
+	struct dentry *dentry;
+
+	spin_lock(&dcache_lock);
+	list_for_each_entry(dentry, &inode->i_dentry, d_alias) {
+		if (!(dentry->d_flags & DCACHE_NFSD_DISCONNECTED))
+			goto found;
+	}
+	spin_unlock(&dcache_lock);
+
+	dentry = d_alloc_root(inode);
+	if (likely(dentry != NULL))
+		dentry->d_flags |= DCACHE_NFSD_DISCONNECTED;
+	return dentry;
+ found:
+	dget_locked(dentry);
+	dentry->d_vfs_flags |= DCACHE_REFERENCED;
+	spin_unlock(&dcache_lock);
+	iput(inode);
+	return dentry;
+}
+
+/*ARGSUSED*/
+int
+xfs_blkdev_get(
+	xfs_mount_t		*mp,
+	const char		*name,
+	struct block_device	**bdevp)
+{
+	struct nameidata	nd;
+	int			error;
+
+	error = path_lookup(name, LOOKUP_POSITIVE|LOOKUP_FOLLOW, &nd);
+	if (error) {
+		printk("XFS: Invalid device [%s], error=%d\n", name, error);
+		return -error;
+	}
+
+	/* I think we actually want bd_acquire here..  --hch */
+	*bdevp = bdget(kdev_t_to_nr(nd.dentry->d_inode->i_rdev));
+	if (*bdevp)
+		error = blkdev_get(*bdevp, FMODE_READ|FMODE_WRITE, 0, BDEV_FS);
+	else
+		error = -ENOMEM;
+
+	path_release(&nd);
+	return -error;
+}
+
+void
+xfs_blkdev_put(
+	struct block_device	*bdev)
+{
+	if (bdev)
+		blkdev_put(bdev, BDEV_FS);
+}
+
+STATIC struct inode *
+linvfs_alloc_inode(
+	struct super_block	*sb)
+{
+	vnode_t			*vp;
+
+	vp = (vnode_t *)kmem_cache_alloc(linvfs_inode_zone, 
+                kmem_flags_convert(KM_SLEEP));
+	if (!vp)
+		return NULL;
+	return LINVFS_GET_IP(vp);
+}
+
+STATIC void
+linvfs_destroy_inode(
+	struct inode		*inode)
+{
+	kmem_cache_free(linvfs_inode_zone, LINVFS_GET_VP(inode));
+}
+
+#define VNODE_SIZE	\
+	(sizeof(vnode_t) - sizeof(struct inode) + offsetof(struct inode, u))
+
+STATIC void
+init_once(
+	void			*data,
+	kmem_cache_t		*cachep,
+	unsigned long		flags)
+{
+	vnode_t			*vp = (vnode_t *)data;
+
+	if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
+	    SLAB_CTOR_CONSTRUCTOR) {
+		struct inode *inode = LINVFS_GET_IP(vp);
+		memset(vp, 0, VNODE_SIZE);
+		__inode_init_once(inode);
+	}
+}
+
+STATIC int
+init_inodecache( void )
+{
+	linvfs_inode_zone = kmem_cache_create("linvfs_icache",
+				VNODE_SIZE, 0, SLAB_HWCACHE_ALIGN,
+				init_once, NULL);
+	if (linvfs_inode_zone == NULL)
+		return -ENOMEM;
+	return 0;
+}
+
+STATIC void
+destroy_inodecache( void )
+{
+	if (kmem_cache_destroy(linvfs_inode_zone))
+		printk(KERN_WARNING "%s: cache still in use!\n", __FUNCTION__);
+}
+
+/*
+ * Attempt to flush the inode, this will actually fail
+ * if the inode is pinned, but we dirty the inode again
+ * at the point when it is unpinned after a log write,
+ * since this is when the inode itself becomes flushable. 
+ */
+STATIC void
+linvfs_write_inode(
+	struct inode		*inode,
+	int			sync)
+{
+	vnode_t			*vp = LINVFS_GET_VP(inode);
+	int			error, flags = FLUSH_INODE;
+
+	if (vp) {
+		vn_trace_entry(vp, __FUNCTION__, (inst_t *)__return_address);
+		if (sync)
+			flags |= FLUSH_SYNC;
+		VOP_IFLUSH(vp, flags, error);
+	}
+}
+
+STATIC void
+linvfs_clear_inode(
+	struct inode		*inode)
+{
+	vnode_t			*vp = LINVFS_GET_VP(inode);
+
+	if (vp) {
+		vn_rele(vp);
+		vn_trace_entry(vp, __FUNCTION__, (inst_t *)__return_address);
+		/*
+		 * Do all our cleanup, and remove this vnode.
+		 */
+		vn_remove(vp);
+	}
+}
+
+
+/*
+ * Enqueue a work item to be picked up by the vfs xfssyncd thread.
+ * Doing this has two advantages:
+ * - It saves on stack space, which is tight in certain situations
+ * - It can be used (with care) as a mechanism to avoid deadlocks.
+ * Flushing while allocating in a full filesystem requires both.
+ */
+STATIC void
+xfs_syncd_queue_work(
+	struct vfs	*vfs,
+	void		*data,
+	void		(*syncer)(vfs_t *, void *))
+{
+	vfs_sync_work_t	*work;
+
+	work = kmem_alloc(sizeof(struct vfs_sync_work), KM_SLEEP);
+	INIT_LIST_HEAD(&work->w_list);
+	work->w_syncer = syncer;
+	work->w_data = data;
+	work->w_vfs = vfs;
+	spin_lock(&vfs->vfs_sync_lock);
+	list_add_tail(&work->w_list, &vfs->vfs_sync_list);
+	spin_unlock(&vfs->vfs_sync_lock);
+	wake_up_process(vfs->vfs_sync_task);
+}
+
+/*
+ * Flush delayed allocate data, attempting to free up reserved space
+ * from existing allocations.  At this point a new allocation attempt
+ * has failed with ENOSPC and we are in the process of scratching our
+ * heads, looking about for more room...
+ */
+STATIC void
+xfs_flush_inode_work(
+	vfs_t		*vfs,
+	void		*inode)
+{
+	filemap_fdatawrite(((struct inode *)inode)->i_mapping);
+	iput((struct inode *)inode);
+}
+
+void
+xfs_flush_inode(
+	xfs_inode_t	*ip)
+{
+	struct inode	*inode = LINVFS_GET_IP(XFS_ITOV(ip));
+	struct vfs	*vfs = XFS_MTOVFS(ip->i_mount);
+
+	igrab(inode);
+	xfs_syncd_queue_work(vfs, inode, xfs_flush_inode_work);
+	delay(HZ/2);
+}
+
+/*
+ * This is the "bigger hammer" version of xfs_flush_inode_work...
+ * (IOW, "If at first you don't succeed, use a Bigger Hammer").
+ */
+STATIC void
+xfs_flush_device_work(
+	vfs_t		*vfs,
+	void		*inode)
+{
+	fsync_no_super(((struct inode *)inode)->i_dev);
+	iput((struct inode *)inode);
+}
+
+void
+xfs_flush_device(
+	xfs_inode_t	*ip)
+{
+	struct inode	*inode = LINVFS_GET_IP(XFS_ITOV(ip));
+	struct vfs	*vfs = XFS_MTOVFS(ip->i_mount);
+
+	igrab(inode);
+	xfs_syncd_queue_work(vfs, inode, xfs_flush_device_work);
+	delay(HZ/2);
+	xfs_log_force(ip->i_mount, (xfs_lsn_t)0, XFS_LOG_FORCE|XFS_LOG_SYNC);
+}
+
+#define SYNCD_FLAGS	(SYNC_FSDATA|SYNC_BDFLUSH|SYNC_ATTR|SYNC_REFCACHE)
+STATIC void
+vfs_sync_worker(
+	vfs_t		*vfsp,
+	void		*unused)
+{
+	int		error;
+
+	if (!(vfsp->vfs_flag & VFS_RDONLY))
+		VFS_SYNC(vfsp, SYNCD_FLAGS, NULL, error);
+}
+
+STATIC int
+xfssyncd(
+	void			*arg)
+{
+	long			timeleft;
+	vfs_t			*vfsp = (vfs_t *) arg;
+	struct list_head	tmp;
+	struct vfs_sync_work	*work, *n;
+
+	daemonize();
+	reparent_to_init();
+	sigmask_lock();
+	sigfillset(&current->blocked);
+	__recalc_sigpending(current);
+	sigmask_unlock();
+
+	sprintf(current->comm, "xfssyncd");
+
+	vfsp->vfs_sync_work.w_vfs = vfsp;
+	vfsp->vfs_sync_work.w_syncer = vfs_sync_worker;
+	vfsp->vfs_sync_task = current;
+	wmb();
+	wake_up(&vfsp->vfs_wait_sync_task);
+
+	INIT_LIST_HEAD(&tmp);
+	timeleft = (xfs_syncd_centisecs * HZ) / 100;
+	for (;;) {
+		set_current_state(TASK_INTERRUPTIBLE);
+		timeleft = schedule_timeout(timeleft);
+		if (vfsp->vfs_flag & VFS_UMOUNT)
+			break;
+
+		spin_lock(&vfsp->vfs_sync_lock);
+		if (!timeleft) {
+			timeleft = (xfs_syncd_centisecs * HZ) / 100;
+			INIT_LIST_HEAD(&vfsp->vfs_sync_work.w_list);
+			list_add_tail(&vfsp->vfs_sync_work.w_list,
+					&vfsp->vfs_sync_list);
+		}
+		list_for_each_entry_safe(work, n, &vfsp->vfs_sync_list, w_list)
+			list_move(&work->w_list, &tmp);
+		spin_unlock(&vfsp->vfs_sync_lock);
+
+		list_for_each_entry_safe(work, n, &tmp, w_list) {
+			(*work->w_syncer)(vfsp, work->w_data);
+			list_del(&work->w_list);
+			if (work == &vfsp->vfs_sync_work)
+				continue;
+			kmem_free(work, sizeof(struct vfs_sync_work));
+		}
+	}
+
+	vfsp->vfs_sync_task = NULL;
+	wmb();
+	wake_up(&vfsp->vfs_wait_sync_task);
+
+	return 0;
+}
+
+STATIC int
+linvfs_start_syncd(
+	vfs_t			*vfsp)
+{
+	int			pid;
+
+	pid = kernel_thread(xfssyncd, (void *) vfsp,
+			CLONE_VM | CLONE_FS | CLONE_FILES);
+	if (pid < 0)
+		return pid;
+	wait_event(vfsp->vfs_wait_sync_task, vfsp->vfs_sync_task);
+	return 0;
+}
+
+STATIC void
+linvfs_stop_syncd(
+	vfs_t			*vfsp)
+{
+	vfsp->vfs_flag |= VFS_UMOUNT;
+	wmb();
+
+	wake_up_process(vfsp->vfs_sync_task);
+	wait_event(vfsp->vfs_wait_sync_task, !vfsp->vfs_sync_task);
+}
+
+STATIC void
+linvfs_put_super(
+	struct super_block	*sb)
+{
+	vfs_t			*vfsp = LINVFS_GET_VFS(sb);
+	int			error;
+
+	linvfs_stop_syncd(vfsp);
+	VFS_SYNC(vfsp, SYNC_ATTR|SYNC_DELWRI, NULL, error);
+	if (!error)
+		VFS_UNMOUNT(vfsp, 0, NULL, error);
+	if (error) {
+		printk("XFS unmount got error %d\n", error);
+		printk("%s: vfsp/0x%p left dangling!\n", __FUNCTION__, vfsp);
+		return;
+	}
+
+	vfs_deallocate(vfsp);
+}
+
+STATIC void
+linvfs_write_super(
+	struct super_block	*sb)
+{
+	vfs_t			*vfsp = LINVFS_GET_VFS(sb);
+	int			error;
+
+	if (sb->s_flags & MS_RDONLY) {
+		sb->s_dirt = 0; /* paranoia */
+		return;
+	}
+	/* Push the log and superblock a little */
+	VFS_SYNC(vfsp, SYNC_FSDATA, NULL, error);
+	sb->s_dirt = 0;
+}
+
+STATIC int
+linvfs_sync_super(
+	struct super_block	*sb)
+{
+	vfs_t		*vfsp = LINVFS_GET_VFS(sb);
+	int		error;
+
+	VFS_SYNC(vfsp, SYNC_FSDATA|SYNC_WAIT, NULL, error);
+	sb->s_dirt = 0;
+	return -error;
+}
+
+STATIC int
+linvfs_statfs(
+	struct super_block	*sb,
+	struct statfs		*statp)
+{
+	vfs_t			*vfsp = LINVFS_GET_VFS(sb);
+	int			error;
+
+	VFS_STATVFS(vfsp, statp, NULL, error);
+	return -error;
+}
+
+STATIC int
+linvfs_remount(
+	struct super_block	*sb,
+	int			*flags,
+	char			*options)
+{
+	vfs_t			*vfsp = LINVFS_GET_VFS(sb);
+	struct xfs_mount_args	*args = xfs_args_allocate(sb);
+	int			error;
+
+	VFS_PARSEARGS(vfsp, options, args, 1, error);
+	if (!error)
+		VFS_MNTUPDATE(vfsp, flags, args, error);
+	kmem_free(args, sizeof(*args));
+	return -error;
+}
+
+struct super_block *freeze_bdev(struct block_device *bdev)
+{
+	struct super_block *sb;
+	struct vfs *vfsp;
+	int error;
+
+	sb = get_super(to_kdev_t(bdev->bd_dev));
+	if (sb && !(sb->s_flags & MS_RDONLY)) {
+		vfsp = LINVFS_GET_VFS(sb);
+
+		/* Stop new writers */
+		vfsp->vfs_frozen = SB_FREEZE_WRITE;
+		wmb();
+
+		/* Flush the refcache */
+		VFS_SYNC(vfsp, SYNC_REFCACHE|SYNC_WAIT, NULL, error);
+
+		/* Flush delalloc and delwri data */
+		VFS_SYNC(vfsp, SYNC_DELWRI|SYNC_WAIT, NULL, error);
+
+		/* Pause transaction subsystem */
+		vfsp->vfs_frozen = SB_FREEZE_TRANS;
+		wmb();
+
+		/* Flush any remaining inodes into buffers */
+		VFS_SYNC(vfsp, SYNC_ATTR|SYNC_WAIT, NULL, error);
+
+		 /* Push all buffers out to disk */
+		sync_buffers(sb->s_dev, 1);
+
+		/* Push the superblock and write an unmount record */
+		VFS_FREEZE(vfsp);
+	}
+
+	sync_buffers(to_kdev_t(bdev->bd_dev), 1);
+	return sb;      /* thaw_bdev releases sb->s_umount */
+}
+
+void thaw_bdev(struct block_device *bdev, struct super_block *sb)
+{
+	if (sb) {
+		struct vfs *vfsp = LINVFS_GET_VFS(sb);
+
+		BUG_ON(sb->s_bdev != bdev);
+
+		vfsp->vfs_frozen = SB_UNFROZEN;
+		wmb();
+		wake_up(&vfsp->vfs_wait_unfrozen);
+
+		drop_super(sb);
+	}
+}
+
+STATIC void
+linvfs_freeze_fs(
+	struct super_block	*sb)
+{
+	if (sb->s_flags & MS_RDONLY)
+		return;
+	freeze_bdev(sb->s_bdev);
+}
+
+STATIC void
+linvfs_unfreeze_fs(
+	struct super_block	*sb)
+{
+	thaw_bdev(sb->s_bdev, sb);
+}
+
+STATIC int
+linvfs_dentry_to_fh(
+	struct dentry		*dentry,
+	__u32			*data,
+	int			*lenp,
+	int			need_parent)
+{
+	struct inode		*inode = dentry->d_inode ;
+	vnode_t			*vp = LINVFS_GET_VP(inode);
+	int			maxlen = *lenp;
+	xfs_fid2_t		fid;
+	int			error;
+
+	if (maxlen < 3)
+		return 255 ;
+
+	VOP_FID2(vp, (struct fid *)&fid, error);
+	data[0] = (__u32)fid.fid_ino;	/* 32 bits of inode is OK */
+	data[1] = fid.fid_gen;
+
+	*lenp = 2 ;
+	if (maxlen < 4 || ! need_parent)
+		return 2 ;
+
+	inode = dentry->d_parent->d_inode ;
+	vp = LINVFS_GET_VP(inode);
+
+	VOP_FID2(vp, (struct fid *)&fid, error);
+	data[2] = (__u32)fid.fid_ino;	/* 32 bits of inode is OK */
+	*lenp = 3 ;
+	if (maxlen < 4)
+		return 3 ;
+	data[3] = fid.fid_gen;
+	*lenp = 4 ;
+	return 4 ;
+}
+
+STATIC struct dentry *
+linvfs_fh_to_dentry(
+	struct super_block	*sb,
+	__u32			*data,
+	int			len,
+	int			fhtype,
+	int			parent)
+{
+	vnode_t			*vp;
+	struct inode		*inode = NULL;
+	struct dentry		*result;
+	xfs_fid2_t		xfid;
+	vfs_t			*vfsp = LINVFS_GET_VFS(sb);
+	int			error;
+
+	xfid.fid_len = sizeof(xfs_fid2_t) - sizeof(xfid.fid_len);
+	xfid.fid_pad = 0;
+
+	if (!parent) {
+		xfid.fid_gen = data[1];
+		xfid.fid_ino = (__u64)data[0];
+	} else {
+		if (fhtype != 4) {
+			printk(KERN_WARNING
+			       "XFS: detected filehandle without "
+			       "parent inode generation information.");
+			return ERR_PTR(-ESTALE);
+		}
+
+		xfid.fid_gen = data[3];
+		xfid.fid_ino = (__u64)data[2];
+	}
+
+	VFS_VGET(vfsp, &vp, (fid_t *)&xfid, error);
+	if (error || vp == NULL)
+		return ERR_PTR(-ESTALE) ;
+
+	inode = LINVFS_GET_IP(vp);
+
+	result = d_alloc_anon(inode);
+	if (unlikely(result == NULL)) {
+		iput(inode);
+		return ERR_PTR(-ENOMEM);
+	}
+	return result;
+}
+
+STATIC int
+linvfs_show_options(
+	struct seq_file		*m,
+	struct vfsmount		*mnt)
+{
+	struct vfs		*vfsp = LINVFS_GET_VFS(mnt->mnt_sb);
+	int			error;
+
+	VFS_SHOWARGS(vfsp, m, error);
+	return error;
+}
+
+STATIC int
+linvfs_getxstate(
+	struct super_block	*sb,
+	struct fs_quota_stat	*fqs)
+{
+	struct vfs		*vfsp = LINVFS_GET_VFS(sb);
+	int			error;
+
+	VFS_QUOTACTL(vfsp, Q_XGETQSTAT, 0, (caddr_t)fqs, error);
+	return -error;
+}
+
+STATIC int
+linvfs_setxstate(
+	struct super_block	*sb,
+	unsigned int		flags,
+	int			op)
+{
+	struct vfs		*vfsp = LINVFS_GET_VFS(sb);
+	int			error;
+
+	VFS_QUOTACTL(vfsp, op, 0, (caddr_t)&flags, error);
+	return -error;
+}
+
+STATIC int
+linvfs_getxquota(
+	struct super_block	*sb,
+	int			type,
+	qid_t			id,
+	struct fs_disk_quota	*fdq)
+{
+	struct vfs		*vfsp = LINVFS_GET_VFS(sb);
+	int			error, getmode;
+
+	getmode = (type == GRPQUOTA) ? Q_XGETGQUOTA : Q_XGETQUOTA;
+	VFS_QUOTACTL(vfsp, getmode, id, (caddr_t)fdq, error);
+	return -error;
+}
+
+STATIC int
+linvfs_setxquota(
+	struct super_block	*sb,
+	int			type,
+	qid_t			id,
+	struct fs_disk_quota	*fdq)
+{
+	struct vfs		*vfsp = LINVFS_GET_VFS(sb);
+	int			error, setmode;
+
+	setmode = (type == GRPQUOTA) ? Q_XSETGQLIM : Q_XSETQLIM;
+	VFS_QUOTACTL(vfsp, setmode, id, (caddr_t)fdq, error);
+	return -error;
+}
+
+STATIC struct super_block *
+linvfs_read_super(
+	struct super_block	*sb,
+	void			*data,
+	int			silent)
+{
+	vnode_t			*rootvp;
+	struct vfs		*vfsp = vfs_allocate();
+	struct xfs_mount_args	*args = xfs_args_allocate(sb);
+	struct statfs		statvfs;
+	int			error;
+
+	vfsp->vfs_super = sb;
+	LINVFS_SET_VFS(sb, vfsp);
+	if (sb->s_flags & MS_RDONLY)
+		vfsp->vfs_flag |= VFS_RDONLY;
+	bhv_insert_all_vfsops(vfsp);
+
+	VFS_PARSEARGS(vfsp, (char *)data, args, 0, error);
+	if (error) {
+		bhv_remove_all_vfsops(vfsp, 1);
+		goto fail_vfsop;
+	}
+
+	sb_min_blocksize(sb, BBSIZE);
+	sb->s_qcop = &linvfs_qops;
+	sb->s_op = &linvfs_sops;
+
+	VFS_MOUNT(vfsp, args, NULL, error);
+	if (error) {
+		bhv_remove_all_vfsops(vfsp, 1);
+		goto fail_vfsop;
+	}
+
+	VFS_STATVFS(vfsp, &statvfs, NULL, error);
+	if (error)
+		goto fail_unmount;
+
+	sb->s_dirt = 1;
+	sb->s_magic = statvfs.f_type;
+	sb->s_blocksize = statvfs.f_bsize;
+	sb->s_blocksize_bits = ffs(statvfs.f_bsize) - 1;
+	sb->s_maxbytes = xfs_max_file_offset(sb->s_blocksize_bits);
+	set_posix_acl_flag(sb);
+
+	VFS_ROOT(vfsp, &rootvp, error);
+	if (error)
+		goto fail_unmount;
+
+	sb->s_root = d_alloc_root(LINVFS_GET_IP(rootvp));
+	if (!sb->s_root)
+		goto fail_vnrele;
+	if (is_bad_inode(sb->s_root->d_inode))
+		goto fail_vnrele;
+	if (linvfs_start_syncd(vfsp))
+		goto fail_vnrele;
+	vn_trace_exit(rootvp, __FUNCTION__, (inst_t *)__return_address);
+
+	kmem_free(args, sizeof(*args));
+	return sb;
+
+fail_vnrele:
+	if (sb->s_root) {
+		dput(sb->s_root);
+		sb->s_root = NULL;
+	} else {
+		VN_RELE(rootvp);
+	}
+
+fail_unmount:
+	VFS_UNMOUNT(vfsp, 0, NULL, error);
+
+fail_vfsop:
+	vfs_deallocate(vfsp);
+	kmem_free(args, sizeof(*args));
+	return NULL;
+}
+
+
+STATIC struct super_operations linvfs_sops = {
+	.alloc_inode		= linvfs_alloc_inode,
+	.destroy_inode		= linvfs_destroy_inode,
+	.write_inode		= linvfs_write_inode,
+	.clear_inode		= linvfs_clear_inode,
+	.put_super		= linvfs_put_super,
+	.write_super		= linvfs_write_super,
+	.sync_fs		= linvfs_sync_super,
+	.write_super_lockfs	= linvfs_freeze_fs,
+	.unlockfs		= linvfs_unfreeze_fs,
+	.statfs			= linvfs_statfs,
+	.remount_fs		= linvfs_remount,
+	.fh_to_dentry		= linvfs_fh_to_dentry,
+	.dentry_to_fh		= linvfs_dentry_to_fh,
+	.show_options		= linvfs_show_options,
+};
+
+STATIC struct quotactl_ops linvfs_qops = {
+	.get_xstate		= linvfs_getxstate,
+	.set_xstate		= linvfs_setxstate,
+	.get_xquota		= linvfs_getxquota,
+	.set_xquota		= linvfs_setxquota,
+};
+
+STATIC struct file_system_type xfs_fs_type = {
+	.owner			= THIS_MODULE,
+	.name			= "xfs",
+	.read_super		= linvfs_read_super,
+	.fs_flags		= FS_REQUIRES_DEV,
+};
+
+
+STATIC int __init
+init_xfs_fs( void )
+{
+	int			error;
+	struct sysinfo		si;
+	static char		message[] __initdata = KERN_INFO \
+		XFS_VERSION_STRING " with " XFS_BUILD_OPTIONS " enabled\n";
+
+	printk(message);
+
+	si_meminfo(&si);
+	xfs_physmem = si.totalram;
+
+	ktrace_init(64);
+
+	error = init_inodecache();
+	if (error < 0)
+		goto undo_inodecache;
+
+	error = pagebuf_init();
+	if (error < 0)
+		goto undo_pagebuf;
+
+	vn_init();
+	xfs_init();
+	uuid_init();
+	vfs_initdmapi();
+	vfs_initquota();
+
+	xfs_inode_shaker = kmem_shake_register(xfs_inode_shake);
+	if (!xfs_inode_shaker) {
+		error = -ENOMEM;
+		goto undo_shaker;
+	}
+
+	error = register_filesystem(&xfs_fs_type);
+	if (error)
+		goto undo_register;
+	XFS_DM_INIT(&xfs_fs_type);
+	return 0;
+
+undo_register:
+	kmem_shake_deregister(xfs_inode_shaker);
+
+undo_shaker:
+	pagebuf_terminate();
+
+undo_pagebuf:
+	destroy_inodecache();
+
+undo_inodecache:
+	return error;
+}
+
+STATIC void __exit
+exit_xfs_fs( void )
+{
+	XFS_DM_EXIT(&xfs_fs_type);
+	unregister_filesystem(&xfs_fs_type);
+	kmem_shake_deregister(xfs_inode_shaker);
+	xfs_cleanup();
+	vfs_exitquota();
+	vfs_exitdmapi();
+	pagebuf_terminate();
+	destroy_inodecache();
+	ktrace_uninit();
+}
+
+module_init(init_xfs_fs);
+module_exit(exit_xfs_fs);
+
+MODULE_AUTHOR("Silicon Graphics, Inc.");
+MODULE_DESCRIPTION(XFS_VERSION_STRING " with " XFS_BUILD_OPTIONS " enabled");
+MODULE_LICENSE("GPL");
diff --git a/fs/xfs/linux-2.4/xfs_super.h b/fs/xfs/linux-2.4/xfs_super.h
new file mode 100644
index 00000000000000..199f77640f55f7
--- /dev/null
+++ b/fs/xfs/linux-2.4/xfs_super.h
@@ -0,0 +1,142 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_SUPER_H__
+#define __XFS_SUPER_H__
+
+#ifdef CONFIG_XFS_DMAPI
+# define vfs_insertdmapi(vfs)	vfs_insertops(vfsp, &xfs_dmops)
+# define vfs_initdmapi()	dmapi_init()
+# define vfs_exitdmapi()	dmapi_uninit()
+#else
+# define vfs_insertdmapi(vfs)	do { } while (0)
+# define vfs_initdmapi()	do { } while (0)
+# define vfs_exitdmapi()	do { } while (0)
+#endif
+
+#ifdef CONFIG_XFS_QUOTA
+# define vfs_insertquota(vfs)	vfs_insertops(vfsp, &xfs_qmops)
+extern void xfs_qm_init(void);
+extern void xfs_qm_exit(void);
+# define vfs_initquota()	xfs_qm_init()
+# define vfs_exitquota()	xfs_qm_exit()
+#else
+# define vfs_insertquota(vfs)	do { } while (0)
+# define vfs_initquota()	do { } while (0)
+# define vfs_exitquota()	do { } while (0)
+#endif
+
+#ifdef CONFIG_XFS_POSIX_ACL
+# define XFS_ACL_STRING		"ACLs, "
+# define set_posix_acl_flag(sb)	((sb)->s_flags |= MS_POSIXACL)
+#else
+# define XFS_ACL_STRING
+# define set_posix_acl_flag(sb)	do { } while (0)
+#endif
+
+#ifdef CONFIG_XFS_SECURITY
+# define XFS_SECURITY_STRING	"security attributes, "
+# define ENOSECURITY		0
+#else
+# define XFS_SECURITY_STRING
+# define ENOSECURITY		EOPNOTSUPP
+#endif
+
+#ifdef CONFIG_XFS_RT
+# define XFS_REALTIME_STRING	"realtime, "
+#else
+# define XFS_REALTIME_STRING
+#endif
+
+#if XFS_BIG_BLKNOS
+# if XFS_BIG_INUMS
+#  define XFS_BIGFS_STRING	"large block/inode numbers, "
+# else
+#  define XFS_BIGFS_STRING	"large block numbers, "
+# endif
+#else
+# define XFS_BIGFS_STRING
+#endif
+
+#ifdef CONFIG_XFS_TRACE
+# define XFS_TRACE_STRING	"tracing, "
+#else
+# define XFS_TRACE_STRING
+#endif
+
+#ifdef CONFIG_XFS_DMAPI
+# define XFS_DMAPI_STRING	"dmapi support, "
+#else
+# define XFS_DMAPI_STRING
+#endif
+
+#ifdef DEBUG
+# define XFS_DBG_STRING		"debug"
+#else
+# define XFS_DBG_STRING		"no debug"
+#endif
+
+#define XFS_BUILD_OPTIONS	XFS_ACL_STRING \
+				XFS_SECURITY_STRING \
+				XFS_REALTIME_STRING \
+				XFS_BIGFS_STRING \
+				XFS_TRACE_STRING \
+				XFS_DMAPI_STRING \
+				XFS_DBG_STRING /* DBG must be last */
+
+#define LINVFS_GET_VFS(s) \
+	(vfs_t *)((s)->u.generic_sbp)
+#define LINVFS_SET_VFS(s, vfsp) \
+	((s)->u.generic_sbp = vfsp)
+
+struct xfs_inode;
+struct xfs_mount;
+struct xfs_buftarg;
+struct block_device;
+
+extern __uint64_t xfs_max_file_offset(unsigned int);
+
+extern struct inode *xfs_get_inode(bhv_desc_t *, xfs_ino_t, int);
+extern void xfs_initialize_vnode(bhv_desc_t *, vnode_t *, bhv_desc_t *, int);
+
+extern void xfs_flush_inode(struct xfs_inode *);
+extern void xfs_flush_device(struct xfs_inode *);
+
+extern int  xfs_blkdev_get(struct xfs_mount *, const char *,
+				struct block_device **);
+extern void xfs_blkdev_put(struct block_device *);
+
+/* matching a 2.6 kernel export, thus no xfs_ prefix */
+extern struct dentry *d_alloc_anon(struct inode *inode);
+extern struct super_block *freeze_bdev(struct block_device *bdev);
+extern void thaw_bdev(struct block_device *bdev, struct super_block *sb);
+
+#endif	/* __XFS_SUPER_H__ */
diff --git a/fs/xfs/linux-2.4/xfs_sysctl.c b/fs/xfs/linux-2.4/xfs_sysctl.c
new file mode 100644
index 00000000000000..22048376e0ff45
--- /dev/null
+++ b/fs/xfs/linux-2.4/xfs_sysctl.c
@@ -0,0 +1,205 @@
+/*
+ * Copyright (c) 2001-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_refcache.h"
+#include <linux/sysctl.h>
+#include <linux/proc_fs.h>
+
+
+static struct ctl_table_header *xfs_table_header;
+
+
+/* Custom proc handlers */
+
+STATIC int
+xfs_refcache_resize_proc_handler(
+	ctl_table	*ctl,
+	int		write,
+	struct file	*filp,
+	void		*buffer,
+	size_t		*lenp)
+{
+	int		ret, *valp = ctl->data;
+	int		xfs_refcache_new_size;
+	int		xfs_refcache_old_size = *valp;
+
+	ret = proc_dointvec_minmax(ctl, write, filp, buffer, lenp);
+	xfs_refcache_new_size = *valp;
+
+	if (!ret && write && xfs_refcache_new_size != xfs_refcache_old_size) {
+		xfs_refcache_resize(xfs_refcache_new_size);
+		/* Don't purge more than size of the cache */
+		if (xfs_refcache_new_size < xfs_refcache_purge_count)
+			xfs_refcache_purge_count = xfs_refcache_new_size;
+	}
+
+	return ret;
+}
+
+#ifdef CONFIG_PROC_FS
+STATIC int
+xfs_stats_clear_proc_handler(
+	ctl_table	*ctl,
+	int		write,
+	struct file	*filp,
+	void		*buffer,
+	size_t		*lenp)
+{
+	int		ret, *valp = ctl->data;
+	__uint32_t	vn_active;
+
+	ret = proc_dointvec_minmax(ctl, write, filp, buffer, lenp);
+
+	if (!ret && write && *valp) {
+		printk("XFS Clearing xfsstats\n");
+		/* save vn_active, it's a universal truth! */
+		vn_active = xfsstats.vn_active;
+		memset(&xfsstats, 0, sizeof(xfsstats));
+		xfsstats.vn_active = vn_active;
+		xfs_stats_clear = 0;
+	}
+
+	return ret;
+}
+#endif /* CONFIG_PROC_FS */
+
+STATIC ctl_table xfs_table[] = {
+	{XFS_REFCACHE_SIZE, "refcache_size", &xfs_params.refcache_size.val,
+	sizeof(int), 0644, NULL, &xfs_refcache_resize_proc_handler,
+	&sysctl_intvec, NULL, 
+	&xfs_params.refcache_size.min, &xfs_params.refcache_size.max},
+
+	/* Note, the max here is different, it is the current refcache size */
+	{XFS_REFCACHE_PURGE, "refcache_purge", &xfs_params.refcache_purge.val,
+	sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+	&sysctl_intvec, NULL, 
+	&xfs_params.refcache_purge.min, &xfs_params.refcache_size.val},
+
+	{XFS_RESTRICT_CHOWN, "restrict_chown", &xfs_params.restrict_chown.val,
+	sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+	&sysctl_intvec, NULL, 
+	&xfs_params.restrict_chown.min, &xfs_params.restrict_chown.max},
+
+	{XFS_SGID_INHERIT, "irix_sgid_inherit", &xfs_params.sgid_inherit.val,
+	sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+	&sysctl_intvec, NULL, 
+	&xfs_params.sgid_inherit.min, &xfs_params.sgid_inherit.max},
+
+	{XFS_SYMLINK_MODE, "irix_symlink_mode", &xfs_params.symlink_mode.val,
+	sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+	&sysctl_intvec, NULL, 
+	&xfs_params.symlink_mode.min, &xfs_params.symlink_mode.max},
+
+	{XFS_PANIC_MASK, "panic_mask", &xfs_params.panic_mask.val,
+	sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+	&sysctl_intvec, NULL, 
+	&xfs_params.panic_mask.min, &xfs_params.panic_mask.max},
+
+	{XFS_ERRLEVEL, "error_level", &xfs_params.error_level.val,
+	sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+	&sysctl_intvec, NULL, 
+	&xfs_params.error_level.min, &xfs_params.error_level.max},
+
+	{XFS_SYNCD_TIMER, "xfssyncd_centisecs", &xfs_params.syncd_timer.val,
+	sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+	&sysctl_intvec, NULL, 
+	&xfs_params.syncd_timer.min, &xfs_params.syncd_timer.max},
+
+	{XFS_INHERIT_SYNC, "inherit_sync", &xfs_params.inherit_sync.val,
+	sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+	&sysctl_intvec, NULL,
+	&xfs_params.inherit_sync.min, &xfs_params.inherit_sync.max},
+
+	{XFS_INHERIT_NODUMP, "inherit_nodump", &xfs_params.inherit_nodump.val,
+	sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+	&sysctl_intvec, NULL,
+	&xfs_params.inherit_nodump.min, &xfs_params.inherit_nodump.max},
+
+	{XFS_INHERIT_NOATIME, "inherit_noatime", &xfs_params.inherit_noatim.val,
+	sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+	&sysctl_intvec, NULL,
+	&xfs_params.inherit_noatim.min, &xfs_params.inherit_noatim.max},
+
+	{XFS_BUF_TIMER, "xfsbufd_centisecs", &xfs_params.xfs_buf_timer.val,
+	sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+	&sysctl_intvec, NULL,
+	&xfs_params.xfs_buf_timer.min, &xfs_params.xfs_buf_timer.max},
+
+	{XFS_BUF_AGE, "age_buffer_centisecs", &xfs_params.xfs_buf_age.val,
+	sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+	&sysctl_intvec, NULL,
+	&xfs_params.xfs_buf_age.min, &xfs_params.xfs_buf_age.max},
+
+	{XFS_INHERIT_NOSYM, "inherit_nosymlinks", &xfs_params.inherit_nosym.val,
+	sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+	&sysctl_intvec, NULL,
+	&xfs_params.inherit_nosym.min, &xfs_params.inherit_nosym.max},
+
+	{XFS_ROTORSTEP, "rotorstep", &xfs_params.rotorstep.val,
+	sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+	&sysctl_intvec, NULL, 
+	&xfs_params.rotorstep.min, &xfs_params.rotorstep.max},
+
+	/* please keep this the last entry */
+#ifdef CONFIG_PROC_FS
+	{XFS_STATS_CLEAR, "stats_clear", &xfs_params.stats_clear.val,
+	sizeof(int), 0644, NULL, &xfs_stats_clear_proc_handler,
+	&sysctl_intvec, NULL, 
+	&xfs_params.stats_clear.min, &xfs_params.stats_clear.max},
+#endif /* CONFIG_PROC_FS */
+
+	{0}
+};
+
+STATIC ctl_table xfs_dir_table[] = {
+	{FS_XFS, "xfs", NULL, 0, 0555, xfs_table},
+	{0}
+};
+
+STATIC ctl_table xfs_root_table[] = {
+	{CTL_FS, "fs",  NULL, 0, 0555, xfs_dir_table},
+	{0}
+};
+
+void
+xfs_sysctl_register(void)
+{
+	xfs_table_header = register_sysctl_table(xfs_root_table, 1);
+}
+
+void
+xfs_sysctl_unregister(void)
+{
+	if (xfs_table_header)
+		unregister_sysctl_table(xfs_table_header);
+}
diff --git a/fs/xfs/linux-2.4/xfs_sysctl.h b/fs/xfs/linux-2.4/xfs_sysctl.h
new file mode 100644
index 00000000000000..f1fa4d807c28c9
--- /dev/null
+++ b/fs/xfs/linux-2.4/xfs_sysctl.h
@@ -0,0 +1,116 @@
+/*
+ * Copyright (c) 2001-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#ifndef __XFS_SYSCTL_H__
+#define __XFS_SYSCTL_H__
+
+#include <linux/sysctl.h>
+
+/*
+ * Tunable xfs parameters
+ */
+
+typedef struct xfs_sysctl_val {
+	int min;
+	int val;
+	int max;
+} xfs_sysctl_val_t;
+
+typedef struct xfs_param {
+	xfs_sysctl_val_t refcache_size;	/* Size of NFS reference cache.      */
+	xfs_sysctl_val_t refcache_purge;/* # of entries to purge each time.  */
+	xfs_sysctl_val_t restrict_chown;/* Root/non-root can give away files.*/
+	xfs_sysctl_val_t sgid_inherit;	/* Inherit S_ISGID if process' GID is
+					 * not a member of parent dir GID. */
+	xfs_sysctl_val_t symlink_mode;	/* Link creat mode affected by umask */
+	xfs_sysctl_val_t panic_mask;	/* bitmask to cause panic on errors. */
+	xfs_sysctl_val_t error_level;	/* Degree of reporting for problems  */
+	xfs_sysctl_val_t syncd_timer;	/* Interval between xfssyncd wakeups */
+	xfs_sysctl_val_t stats_clear;	/* Reset all XFS statistics to zero. */
+	xfs_sysctl_val_t inherit_sync;	/* Inherit the "sync" inode flag. */
+	xfs_sysctl_val_t inherit_nodump;/* Inherit the "nodump" inode flag. */
+	xfs_sysctl_val_t inherit_noatim;/* Inherit the "noatime" inode flag. */
+	xfs_sysctl_val_t xfs_buf_timer;	/* Interval between xfsbufd wakeups. */
+	xfs_sysctl_val_t xfs_buf_age;	/* Metadata buffer age before flush. */
+	xfs_sysctl_val_t inherit_nosym;	/* Inherit the "nosymlinks" flag. */
+	xfs_sysctl_val_t rotorstep;	/* inode32 AG rotoring control knob */
+} xfs_param_t;
+
+/*
+ * xfs_error_level:
+ *
+ * How much error reporting will be done when internal problems are
+ * encountered.  These problems normally return an EFSCORRUPTED to their
+ * caller, with no other information reported.
+ *
+ * 0	No error reports
+ * 1	Report EFSCORRUPTED errors that will cause a filesystem shutdown
+ * 5	Report all EFSCORRUPTED errors (all of the above errors, plus any
+ *	additional errors that are known to not cause shutdowns)
+ *
+ * xfs_panic_mask bit 0x8 turns the error reports into panics
+ */
+
+enum {
+	XFS_REFCACHE_SIZE = 1,
+	XFS_REFCACHE_PURGE = 2,
+	XFS_RESTRICT_CHOWN = 3,
+	XFS_SGID_INHERIT = 4,
+	XFS_SYMLINK_MODE = 5,
+	XFS_PANIC_MASK = 6,
+	XFS_ERRLEVEL = 7,
+	XFS_SYNCD_TIMER = 8,
+	/* XFS_PROBE_DMAPI = 9 */
+	/* XFS_PROBE_IOOPS = 10 */
+	/* XFS_PROBE_QUOTA = 11 */
+	XFS_STATS_CLEAR = 12,
+	XFS_INHERIT_SYNC = 13,
+	XFS_INHERIT_NODUMP = 14,
+	XFS_INHERIT_NOATIME = 15,
+	XFS_BUF_TIMER = 16,
+	XFS_BUF_AGE = 17,
+	/* XFS_IO_BYPASS = 18, */
+	XFS_INHERIT_NOSYM = 19,
+	XFS_ROTORSTEP = 20,
+};
+
+extern xfs_param_t	xfs_params;
+
+#ifdef CONFIG_SYSCTL
+extern void xfs_sysctl_register(void);
+extern void xfs_sysctl_unregister(void);
+#else
+# define xfs_sysctl_register()		do { } while (0)
+# define xfs_sysctl_unregister()	do { } while (0)
+#endif /* CONFIG_SYSCTL */
+
+#endif /* __XFS_SYSCTL_H__ */
diff --git a/fs/xfs/linux-2.4/xfs_version.h b/fs/xfs/linux-2.4/xfs_version.h
new file mode 100644
index 00000000000000..96f96394417e92
--- /dev/null
+++ b/fs/xfs/linux-2.4/xfs_version.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2001-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.	 Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+/*
+ * Dummy file that can contain a timestamp to put into the
+ * XFS init string, to help users keep track of what they're
+ * running
+ */
+
+#ifndef __XFS_VERSION_H__
+#define __XFS_VERSION_H__
+
+#define XFS_VERSION_STRING "SGI XFS"
+
+#endif /* __XFS_VERSION_H__ */
diff --git a/fs/xfs/linux-2.4/xfs_vfs.c b/fs/xfs/linux-2.4/xfs_vfs.c
new file mode 100644
index 00000000000000..17836d994dc809
--- /dev/null
+++ b/fs/xfs/linux-2.4/xfs_vfs.c
@@ -0,0 +1,343 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_macros.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_clnt.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_imap.h"
+#include "xfs_alloc.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_quota.h"
+
+int
+vfs_mount(
+	struct bhv_desc		*bdp,
+	struct xfs_mount_args	*args,
+	struct cred		*cr)
+{
+	struct bhv_desc		*next = bdp;
+
+	ASSERT(next);
+	while (! (bhvtovfsops(next))->vfs_mount)
+		next = BHV_NEXT(next);
+	return ((*bhvtovfsops(next)->vfs_mount)(next, args, cr));
+}
+
+int
+vfs_parseargs(
+	struct bhv_desc		*bdp,
+	char			*s,
+	struct xfs_mount_args	*args,
+	int			f)
+{
+	struct bhv_desc		*next = bdp;
+
+	ASSERT(next);
+	while (! (bhvtovfsops(next))->vfs_parseargs)
+		next = BHV_NEXT(next);
+	return ((*bhvtovfsops(next)->vfs_parseargs)(next, s, args, f));
+}
+
+int
+vfs_showargs(
+	struct bhv_desc		*bdp,
+	struct seq_file		*m)
+{
+	struct bhv_desc		*next = bdp;
+
+	ASSERT(next);
+	while (! (bhvtovfsops(next))->vfs_showargs)
+		next = BHV_NEXT(next);
+	return ((*bhvtovfsops(next)->vfs_showargs)(next, m));
+}
+
+int
+vfs_unmount(
+	struct bhv_desc		*bdp,
+	int			fl,
+	struct cred		*cr)
+{
+	struct bhv_desc		*next = bdp;
+
+	ASSERT(next);
+	while (! (bhvtovfsops(next))->vfs_unmount)
+		next = BHV_NEXT(next);
+	return ((*bhvtovfsops(next)->vfs_unmount)(next, fl, cr));
+}
+
+int
+vfs_mntupdate(
+	struct bhv_desc		*bdp,
+	int			*fl,
+	struct xfs_mount_args	*args)
+{
+	struct bhv_desc		*next = bdp;
+
+	ASSERT(next);
+	while (! (bhvtovfsops(next))->vfs_mntupdate)
+		next = BHV_NEXT(next);
+	return ((*bhvtovfsops(next)->vfs_mntupdate)(next, fl, args));
+}
+
+int
+vfs_root(
+	struct bhv_desc		*bdp,
+	struct vnode		**vpp)
+{
+	struct bhv_desc		*next = bdp;
+
+	ASSERT(next);
+	while (! (bhvtovfsops(next))->vfs_root)
+		next = BHV_NEXT(next);
+	return ((*bhvtovfsops(next)->vfs_root)(next, vpp));
+}
+
+int
+vfs_statvfs(
+	struct bhv_desc		*bdp,
+	xfs_statfs_t		*sp,
+	struct vnode		*vp)
+{
+	struct bhv_desc		*next = bdp;
+
+	ASSERT(next);
+	while (! (bhvtovfsops(next))->vfs_statvfs)
+		next = BHV_NEXT(next);
+	return ((*bhvtovfsops(next)->vfs_statvfs)(next, sp, vp));
+}
+
+int
+vfs_sync(
+	struct bhv_desc		*bdp,
+	int			fl,
+	struct cred		*cr)
+{
+	struct bhv_desc		*next = bdp;
+
+	ASSERT(next);
+	while (! (bhvtovfsops(next))->vfs_sync)
+		next = BHV_NEXT(next);
+	return ((*bhvtovfsops(next)->vfs_sync)(next, fl, cr));
+}
+
+int
+vfs_vget(
+	struct bhv_desc		*bdp,
+	struct vnode		**vpp,
+	struct fid		*fidp)
+{
+	struct bhv_desc		*next = bdp;
+
+	ASSERT(next);
+	while (! (bhvtovfsops(next))->vfs_vget)
+		next = BHV_NEXT(next);
+	return ((*bhvtovfsops(next)->vfs_vget)(next, vpp, fidp));
+}
+
+int
+vfs_dmapiops(
+	struct bhv_desc		*bdp,
+	caddr_t			addr)
+{
+	struct bhv_desc		*next = bdp;
+
+	ASSERT(next);
+	while (! (bhvtovfsops(next))->vfs_dmapiops)
+		next = BHV_NEXT(next);
+	return ((*bhvtovfsops(next)->vfs_dmapiops)(next, addr));
+}
+
+int
+vfs_quotactl(
+	struct bhv_desc		*bdp,
+	int			cmd,
+	int			id,
+	caddr_t			addr)
+{
+	struct bhv_desc		*next = bdp;
+
+	ASSERT(next);
+	while (! (bhvtovfsops(next))->vfs_quotactl)
+		next = BHV_NEXT(next);
+	return ((*bhvtovfsops(next)->vfs_quotactl)(next, cmd, id, addr));
+}
+
+struct inode *
+vfs_get_inode(
+	struct bhv_desc		*bdp,
+	xfs_ino_t		ino,
+	int			fl)
+{
+	struct bhv_desc		*next = bdp;
+
+	while (! (bhvtovfsops(next))->vfs_get_inode)
+		next = BHV_NEXTNULL(next);
+	return ((*bhvtovfsops(next)->vfs_get_inode)(next, ino, fl));
+}
+
+void
+vfs_init_vnode(
+	struct bhv_desc		*bdp,
+	struct vnode		*vp,
+	struct bhv_desc		*bp,
+	int			unlock)
+{
+	struct bhv_desc		*next = bdp;
+
+	ASSERT(next);
+	while (! (bhvtovfsops(next))->vfs_init_vnode)
+		next = BHV_NEXT(next);
+	((*bhvtovfsops(next)->vfs_init_vnode)(next, vp, bp, unlock));
+}
+
+void
+vfs_force_shutdown(
+	struct bhv_desc		*bdp,
+	int			fl,
+	char			*file,
+	int			line)
+{
+	struct bhv_desc		*next = bdp;
+
+	ASSERT(next);
+	while (! (bhvtovfsops(next))->vfs_force_shutdown)
+		next = BHV_NEXT(next);
+	((*bhvtovfsops(next)->vfs_force_shutdown)(next, fl, file, line));
+}
+
+void
+vfs_freeze(
+	struct bhv_desc		*bdp)
+{
+	struct bhv_desc		*next = bdp;
+
+	ASSERT(next);
+	while (! (bhvtovfsops(next))->vfs_freeze)
+		next = BHV_NEXT(next);
+	((*bhvtovfsops(next)->vfs_freeze)(next));
+}
+
+vfs_t *
+vfs_allocate( void )
+{
+	struct vfs		*vfsp;
+
+	vfsp = kmem_zalloc(sizeof(vfs_t), KM_SLEEP);
+	bhv_head_init(VFS_BHVHEAD(vfsp), "vfs");
+	INIT_LIST_HEAD(&vfsp->vfs_sync_list);
+	vfsp->vfs_sync_lock = SPIN_LOCK_UNLOCKED;
+	init_waitqueue_head(&vfsp->vfs_wait_sync_task);
+	init_waitqueue_head(&vfsp->vfs_wait_unfrozen);
+	return vfsp;
+}
+
+void
+vfs_deallocate(
+	struct vfs		*vfsp)
+{
+	bhv_head_destroy(VFS_BHVHEAD(vfsp));
+	kmem_free(vfsp, sizeof(vfs_t));
+}
+
+void
+vfs_insertops(
+	struct vfs		*vfsp,
+	struct bhv_vfsops	*vfsops)
+{
+	struct bhv_desc		*bdp;
+
+	bdp = kmem_alloc(sizeof(struct bhv_desc), KM_SLEEP);
+	bhv_desc_init(bdp, NULL, vfsp, vfsops);
+	bhv_insert(&vfsp->vfs_bh, bdp);
+}
+
+void
+vfs_insertbhv(
+	struct vfs		*vfsp,
+	struct bhv_desc		*bdp,
+	struct vfsops		*vfsops,
+	void			*mount)
+{
+	bhv_desc_init(bdp, mount, vfsp, vfsops);
+	bhv_insert_initial(&vfsp->vfs_bh, bdp);
+}
+
+void
+bhv_remove_vfsops(
+	struct vfs		*vfsp,
+	int			pos)
+{
+	struct bhv_desc		*bhv;
+
+	bhv = bhv_lookup_range(&vfsp->vfs_bh, pos, pos);
+	if (!bhv)
+		return;
+	bhv_remove(&vfsp->vfs_bh, bhv);
+	kmem_free(bhv, sizeof(*bhv));
+}
+
+void
+bhv_remove_all_vfsops(
+	struct vfs		*vfsp,
+	int			freebase)
+{
+	struct xfs_mount	*mp;
+
+	bhv_remove_vfsops(vfsp, VFS_POSITION_QM);
+	bhv_remove_vfsops(vfsp, VFS_POSITION_DM);
+	if (!freebase)
+		return;
+	mp = XFS_BHVTOM(bhv_lookup(VFS_BHVHEAD(vfsp), &xfs_vfsops));
+	VFS_REMOVEBHV(vfsp, &mp->m_bhv);
+	xfs_mount_free(mp, 0);
+}
+
+void
+bhv_insert_all_vfsops(
+	struct vfs		*vfsp)
+{
+	struct xfs_mount	*mp;
+
+	mp = xfs_mount_init();
+	vfs_insertbhv(vfsp, &mp->m_bhv, &xfs_vfsops, mp);
+	vfs_insertdmapi(vfsp);
+	vfs_insertquota(vfsp);
+}
diff --git a/fs/xfs/linux-2.4/xfs_vfs.h b/fs/xfs/linux-2.4/xfs_vfs.h
new file mode 100644
index 00000000000000..4bdb297fd28a4f
--- /dev/null
+++ b/fs/xfs/linux-2.4/xfs_vfs.h
@@ -0,0 +1,236 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_VFS_H__
+#define __XFS_VFS_H__
+
+#include <linux/vfs.h>
+#include "xfs_fs.h"
+
+struct fid;
+struct vfs;
+struct cred;
+struct vnode;
+struct statfs;
+struct seq_file;
+struct super_block;
+struct xfs_mount_args;
+
+typedef struct statfs xfs_statfs_t;
+
+typedef struct vfs_sync_work {
+	struct list_head	w_list;
+	struct vfs		*w_vfs;
+	void			*w_data;	/* syncer routine argument */
+	void			(*w_syncer)(struct vfs *, void *);
+} vfs_sync_work_t;
+
+typedef struct vfs {
+	u_int			vfs_flag;	/* flags */
+	xfs_fsid_t		vfs_fsid;	/* file system ID */
+	xfs_fsid_t		*vfs_altfsid;	/* An ID fixed for life of FS */
+	bhv_head_t		vfs_bh;		/* head of vfs behavior chain */
+	struct super_block	*vfs_super;	/* generic superblock pointer */
+	struct task_struct	*vfs_sync_task;	/* generalised sync thread */
+	vfs_sync_work_t		vfs_sync_work;	/* work item for VFS_SYNC */
+	struct list_head	vfs_sync_list;	/* sync thread work item list */
+	spinlock_t		vfs_sync_lock;	/* work item list lock */
+	wait_queue_head_t	vfs_wait_sync_task;
+	int			vfs_frozen;
+	wait_queue_head_t	vfs_wait_unfrozen;
+} vfs_t;
+
+#define vfs_fbhv		vfs_bh.bh_first	/* 1st on vfs behavior chain */
+
+#define bhvtovfs(bdp)		( (struct vfs *)BHV_VOBJ(bdp) )
+#define bhvtovfsops(bdp)	( (struct vfsops *)BHV_OPS(bdp) )
+#define VFS_BHVHEAD(vfs)	( &(vfs)->vfs_bh )
+#define VFS_REMOVEBHV(vfs, bdp)	( bhv_remove(VFS_BHVHEAD(vfs), bdp) )
+
+#define VFS_POSITION_BASE	BHV_POSITION_BASE	/* chain bottom */
+#define VFS_POSITION_TOP	BHV_POSITION_TOP	/* chain top */
+#define VFS_POSITION_INVALID	BHV_POSITION_INVALID	/* invalid pos. num */
+
+typedef enum {
+	VFS_BHV_UNKNOWN,	/* not specified */
+	VFS_BHV_XFS,		/* xfs */
+	VFS_BHV_DM,		/* data migration */
+	VFS_BHV_QM,		/* quota manager */
+	VFS_BHV_IO,		/* IO path */
+	VFS_BHV_END		/* housekeeping end-of-range */
+} vfs_bhv_t;
+
+#define VFS_POSITION_XFS	(BHV_POSITION_BASE)
+#define VFS_POSITION_DM		(VFS_POSITION_BASE+10)
+#define VFS_POSITION_QM		(VFS_POSITION_BASE+20)
+#define VFS_POSITION_IO		(VFS_POSITION_BASE+30)
+
+#define VFS_RDONLY		0x0001	/* read-only vfs */
+#define VFS_GRPID		0x0002	/* group-ID assigned from directory */
+#define VFS_DMI			0x0004	/* filesystem has the DMI enabled */
+#define VFS_UMOUNT		0x0008	/* unmount in progress */
+#define VFS_END			0x0008	/* max flag */
+
+#define SYNC_ATTR		0x0001	/* sync attributes */
+#define SYNC_CLOSE		0x0002	/* close file system down */
+#define SYNC_DELWRI		0x0004	/* look at delayed writes */
+#define SYNC_WAIT		0x0008	/* wait for i/o to complete */
+#define SYNC_BDFLUSH		0x0010	/* BDFLUSH is calling -- don't block */
+#define SYNC_FSDATA		0x0020	/* flush fs data (e.g. superblocks) */
+#define SYNC_REFCACHE		0x0040  /* prune some of the nfs ref cache */
+#define SYNC_REMOUNT		0x0080  /* remount readonly, no dummy LRs */
+
+#define IGET_NOALLOC		0x0001	/* vfs_get_inode may return NULL */
+
+typedef int	(*vfs_mount_t)(bhv_desc_t *,
+				struct xfs_mount_args *, struct cred *);
+typedef int	(*vfs_parseargs_t)(bhv_desc_t *, char *,
+				struct xfs_mount_args *, int);
+typedef	int	(*vfs_showargs_t)(bhv_desc_t *, struct seq_file *);
+typedef int	(*vfs_unmount_t)(bhv_desc_t *, int, struct cred *);
+typedef int	(*vfs_mntupdate_t)(bhv_desc_t *, int *,
+				struct xfs_mount_args *);
+typedef int	(*vfs_root_t)(bhv_desc_t *, struct vnode **);
+typedef int	(*vfs_statvfs_t)(bhv_desc_t *, xfs_statfs_t *, struct vnode *);
+typedef int	(*vfs_sync_t)(bhv_desc_t *, int, struct cred *);
+typedef int	(*vfs_vget_t)(bhv_desc_t *, struct vnode **, struct fid *);
+typedef int	(*vfs_dmapiops_t)(bhv_desc_t *, caddr_t);
+typedef int	(*vfs_quotactl_t)(bhv_desc_t *, int, int, caddr_t);
+typedef void	(*vfs_init_vnode_t)(bhv_desc_t *,
+				struct vnode *, bhv_desc_t *, int);
+typedef void	(*vfs_force_shutdown_t)(bhv_desc_t *, int, char *, int);
+typedef void	(*vfs_freeze_t)(bhv_desc_t *);
+typedef	struct inode * (*vfs_get_inode_t)(bhv_desc_t *, xfs_ino_t, int);
+
+typedef struct vfsops {
+	bhv_position_t		vf_position;	/* behavior chain position */
+	vfs_mount_t		vfs_mount;	/* mount file system */
+	vfs_parseargs_t		vfs_parseargs;	/* parse mount options */
+	vfs_showargs_t		vfs_showargs;	/* unparse mount options */
+	vfs_unmount_t		vfs_unmount;	/* unmount file system */
+	vfs_mntupdate_t		vfs_mntupdate;	/* update file system options */
+	vfs_root_t		vfs_root;	/* get root vnode */
+	vfs_statvfs_t		vfs_statvfs;	/* file system statistics */
+	vfs_sync_t		vfs_sync;	/* flush files */
+	vfs_vget_t		vfs_vget;	/* get vnode from fid */
+	vfs_dmapiops_t		vfs_dmapiops;	/* data migration */
+	vfs_quotactl_t		vfs_quotactl;	/* disk quota */
+	vfs_get_inode_t		vfs_get_inode;	/* bhv specific iget */
+	vfs_init_vnode_t	vfs_init_vnode;	/* initialize a new vnode */
+	vfs_force_shutdown_t	vfs_force_shutdown;	/* crash and burn */
+	vfs_freeze_t		vfs_freeze;	/* freeze fs for snapshot */
+} vfsops_t;
+
+/*
+ * VFS's.  Operates on vfs structure pointers (starts at bhv head).
+ */
+#define VHEAD(v)			((v)->vfs_fbhv)
+#define VFS_MOUNT(v, ma,cr, rv)		((rv) = vfs_mount(VHEAD(v), ma,cr))
+#define VFS_PARSEARGS(v, o,ma,f, rv)	((rv) = vfs_parseargs(VHEAD(v), o,ma,f))
+#define VFS_SHOWARGS(v, m, rv)		((rv) = vfs_showargs(VHEAD(v), m))
+#define VFS_UNMOUNT(v, f, cr, rv)	((rv) = vfs_unmount(VHEAD(v), f,cr))
+#define VFS_MNTUPDATE(v, fl, args, rv)	((rv) = vfs_mntupdate(VHEAD(v), fl, args))
+#define VFS_ROOT(v, vpp, rv)		((rv) = vfs_root(VHEAD(v), vpp))
+#define VFS_STATVFS(v, sp,vp, rv)	((rv) = vfs_statvfs(VHEAD(v), sp,vp))
+#define VFS_SYNC(v, flag,cr, rv)	((rv) = vfs_sync(VHEAD(v), flag,cr))
+#define VFS_VGET(v, vpp,fidp, rv)	((rv) = vfs_vget(VHEAD(v), vpp,fidp))
+#define VFS_DMAPIOPS(v, p, rv)		((rv) = vfs_dmapiops(VHEAD(v), p))
+#define VFS_QUOTACTL(v, c,id,p, rv)	((rv) = vfs_quotactl(VHEAD(v), c,id,p))
+#define VFS_GET_INODE(v, ino, fl)	( vfs_get_inode(VHEAD(v), ino,fl) )
+#define VFS_INIT_VNODE(v, vp,b,ul)	( vfs_init_vnode(VHEAD(v), vp,b,ul) )
+#define VFS_FORCE_SHUTDOWN(v, fl,f,l)	( vfs_force_shutdown(VHEAD(v), fl,f,l) )
+#define VFS_FREEZE(v)			( vfs_freeze(VHEAD(v)) )
+
+/*
+ * PVFS's.  Operates on behavior descriptor pointers.
+ */
+#define PVFS_MOUNT(b, ma,cr, rv)	((rv) = vfs_mount(b, ma,cr))
+#define PVFS_PARSEARGS(b, o,ma,f, rv)	((rv) = vfs_parseargs(b, o,ma,f))
+#define PVFS_SHOWARGS(b, m, rv)		((rv) = vfs_showargs(b, m))
+#define PVFS_UNMOUNT(b, f,cr, rv)	((rv) = vfs_unmount(b, f,cr))
+#define PVFS_MNTUPDATE(b, fl, args, rv)	((rv) = vfs_mntupdate(b, fl, args))
+#define PVFS_ROOT(b, vpp, rv)		((rv) = vfs_root(b, vpp))
+#define PVFS_STATVFS(b, sp,vp, rv)	((rv) = vfs_statvfs(b, sp,vp))
+#define PVFS_SYNC(b, flag,cr, rv)	((rv) = vfs_sync(b, flag,cr))
+#define PVFS_VGET(b, vpp,fidp, rv)	((rv) = vfs_vget(b, vpp,fidp))
+#define PVFS_DMAPIOPS(b, p, rv)		((rv) = vfs_dmapiops(b, p))
+#define PVFS_QUOTACTL(b, c,id,p, rv)	((rv) = vfs_quotactl(b, c,id,p))
+#define PVFS_GET_INODE(b, ino,fl)	( vfs_get_inode(b, ino,fl) )
+#define PVFS_INIT_VNODE(b, vp,b2,ul)	( vfs_init_vnode(b, vp,b2,ul) )
+#define PVFS_FORCE_SHUTDOWN(b, fl,f,l)	( vfs_force_shutdown(b, fl,f,l) )
+#define PVFS_FREEZE(b)			( vfs_freeze(b) )
+
+extern int vfs_mount(bhv_desc_t *, struct xfs_mount_args *, struct cred *);
+extern int vfs_parseargs(bhv_desc_t *, char *, struct xfs_mount_args *, int);
+extern int vfs_showargs(bhv_desc_t *, struct seq_file *);
+extern int vfs_unmount(bhv_desc_t *, int, struct cred *);
+extern int vfs_mntupdate(bhv_desc_t *, int *, struct xfs_mount_args *);
+extern int vfs_root(bhv_desc_t *, struct vnode **);
+extern int vfs_statvfs(bhv_desc_t *, xfs_statfs_t *, struct vnode *);
+extern int vfs_sync(bhv_desc_t *, int, struct cred *);
+extern int vfs_vget(bhv_desc_t *, struct vnode **, struct fid *);
+extern int vfs_dmapiops(bhv_desc_t *, caddr_t);
+extern int vfs_quotactl(bhv_desc_t *, int, int, caddr_t);
+extern struct inode *vfs_get_inode(bhv_desc_t *, xfs_ino_t, int);
+extern void vfs_init_vnode(bhv_desc_t *, struct vnode *, bhv_desc_t *, int);
+extern void vfs_force_shutdown(bhv_desc_t *, int, char *, int);
+extern void vfs_freeze(bhv_desc_t *);
+
+typedef struct bhv_vfsops {
+	struct vfsops		bhv_common;
+	void *			bhv_custom;
+} bhv_vfsops_t;
+
+#define vfs_bhv_lookup(v, id)	( bhv_lookup_range(&(v)->vfs_bh, (id), (id)) )
+#define vfs_bhv_custom(b)	( ((bhv_vfsops_t *)BHV_OPS(b))->bhv_custom )
+#define vfs_bhv_set_custom(b,o)	( (b)->bhv_custom = (void *)(o))
+#define vfs_bhv_clr_custom(b)	( (b)->bhv_custom = NULL )
+
+extern vfs_t *vfs_allocate(void);
+extern void vfs_deallocate(vfs_t *);
+extern void vfs_insertops(vfs_t *, bhv_vfsops_t *);
+extern void vfs_insertbhv(vfs_t *, bhv_desc_t *, vfsops_t *, void *);
+
+extern void bhv_insert_all_vfsops(struct vfs *);
+extern void bhv_remove_all_vfsops(struct vfs *, int);
+extern void bhv_remove_vfsops(struct vfs *, int);
+
+enum {
+	SB_UNFROZEN = 0,
+	SB_FREEZE_WRITE	= 1,
+	SB_FREEZE_TRANS = 2,
+};
+
+#define fs_frozen(vfsp)		((vfsp)->vfs_frozen)
+#define fs_check_frozen(vfsp, level) \
+	wait_event((vfsp)->vfs_wait_unfrozen, ((vfsp)->vfs_frozen < (level)))
+
+#endif	/* __XFS_VFS_H__ */
diff --git a/fs/xfs/linux-2.4/xfs_vnode.c b/fs/xfs/linux-2.4/xfs_vnode.c
new file mode 100644
index 00000000000000..b47bfc24a1169c
--- /dev/null
+++ b/fs/xfs/linux-2.4/xfs_vnode.c
@@ -0,0 +1,465 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+
+
+uint64_t vn_generation;		/* vnode generation number */
+spinlock_t vnumber_lock = SPIN_LOCK_UNLOCKED;
+
+/*
+ * Dedicated vnode inactive/reclaim sync semaphores.
+ * Prime number of hash buckets since address is used as the key.
+ */
+#define NVSYNC                  37
+#define vptosync(v)             (&vsync[((unsigned long)v) % NVSYNC])
+sv_t vsync[NVSYNC];
+
+/*
+ * Translate stat(2) file types to vnode types and vice versa.
+ * Aware of numeric order of S_IFMT and vnode type values.
+ */
+enum vtype iftovt_tab[] = {
+	VNON, VFIFO, VCHR, VNON, VDIR, VNON, VBLK, VNON,
+	VREG, VNON, VLNK, VNON, VSOCK, VNON, VNON, VNON
+};
+
+u_short vttoif_tab[] = {
+	0, S_IFREG, S_IFDIR, S_IFBLK, S_IFCHR, S_IFLNK, S_IFIFO, 0, S_IFSOCK
+};
+
+
+void
+vn_init(void)
+{
+	register sv_t *svp;
+	register int i;
+
+	for (svp = vsync, i = 0; i < NVSYNC; i++, svp++)
+		init_sv(svp, SV_DEFAULT, "vsy", i);
+}
+
+/*
+ * Clean a vnode of filesystem-specific data and prepare it for reuse.
+ */
+STATIC int
+vn_reclaim(
+	struct vnode	*vp)
+{
+	int		error;
+
+	XFS_STATS_INC(vn_reclaim);
+	vn_trace_entry(vp, "vn_reclaim", (inst_t *)__return_address);
+
+	/*
+	 * Only make the VOP_RECLAIM call if there are behaviors
+	 * to call.
+	 */
+	if (vp->v_fbhv) {
+		VOP_RECLAIM(vp, error);
+		if (error)
+			return -error;
+	}
+	ASSERT(vp->v_fbhv == NULL);
+
+	VN_LOCK(vp);
+	vp->v_flag &= (VRECLM|VWAIT);
+	VN_UNLOCK(vp, 0);
+
+	vp->v_type = VNON;
+	vp->v_fbhv = NULL;
+
+#ifdef XFS_VNODE_TRACE
+	ktrace_free(vp->v_trace);
+	vp->v_trace = NULL;
+#endif
+
+	return 0;
+}
+
+STATIC void
+vn_wakeup(
+	struct vnode	*vp)
+{
+	VN_LOCK(vp);
+	if (vp->v_flag & VWAIT)
+		sv_broadcast(vptosync(vp));
+	vp->v_flag &= ~(VRECLM|VWAIT|VMODIFIED);
+	VN_UNLOCK(vp, 0);
+}
+
+int
+vn_wait(
+	struct vnode	*vp)
+{
+	VN_LOCK(vp);
+	if (vp->v_flag & (VINACT | VRECLM)) {
+		vp->v_flag |= VWAIT;
+		sv_wait(vptosync(vp), PINOD, &vp->v_lock, 0);
+		return 1;
+	}
+	VN_UNLOCK(vp, 0);
+	return 0;
+}
+
+struct vnode *
+vn_initialize(
+	struct inode	*inode)
+{
+	struct vnode	*vp = LINVFS_GET_VP(inode);
+
+	XFS_STATS_INC(vn_active);
+	XFS_STATS_INC(vn_alloc);
+
+	vp->v_flag = VMODIFIED;
+	spinlock_init(&vp->v_lock, "v_lock");
+
+	spin_lock(&vnumber_lock);
+	if (!++vn_generation)	/* v_number shouldn't be zero */
+		vn_generation++;
+	vp->v_number = vn_generation;
+	spin_unlock(&vnumber_lock);
+
+	ASSERT(VN_CACHED(vp) == 0);
+
+	/* Initialize the first behavior and the behavior chain head. */
+	vn_bhv_head_init(VN_BHV_HEAD(vp), "vnode");
+
+#ifdef	XFS_VNODE_TRACE
+	vp->v_trace = ktrace_alloc(VNODE_TRACE_SIZE, KM_SLEEP);
+	printk("Allocated VNODE_TRACE at 0x%p\n", vp->v_trace);
+#endif	/* XFS_VNODE_TRACE */
+
+	vn_trace_exit(vp, "vn_initialize", (inst_t *)__return_address);
+	return vp;
+}
+
+/*
+ * Get a reference on a vnode.
+ */
+vnode_t *
+vn_get(
+	struct vnode	*vp,
+	vmap_t		*vmap)
+{
+	struct inode	*inode;
+
+	XFS_STATS_INC(vn_get);
+	inode = LINVFS_GET_IP(vp);
+	if (inode->i_state & I_FREEING)
+		return NULL;
+
+	inode = VFS_GET_INODE(vmap->v_vfsp, vmap->v_ino, IGET_NOALLOC);
+	if (!inode)	/* Inode not present */
+		return NULL;
+
+	/* We do not want to create new inodes via vn_get,
+	 * returning NULL here is OK.
+	 */
+	if (inode->i_state & I_NEW) {
+		vn_mark_bad(vp);
+		unlock_new_inode(inode);
+		iput(inode);
+		return NULL;
+	}
+
+	vn_trace_exit(vp, "vn_get", (inst_t *)__return_address);
+
+	return vp;
+}
+
+/*
+ * Revalidate the Linux inode from the vattr.
+ * Note: i_size _not_ updated; we must hold the inode
+ * semaphore when doing that - callers responsibility.
+ */
+void
+vn_revalidate_core(
+	struct vnode	*vp,
+	vattr_t		*vap)
+{
+	struct inode	*inode = LINVFS_GET_IP(vp);
+
+	inode->i_mode	    = VTTOIF(vap->va_type) | vap->va_mode;
+	inode->i_nlink	    = vap->va_nlink;
+	inode->i_uid	    = vap->va_uid;
+	inode->i_gid	    = vap->va_gid;
+	inode->i_blocks	    = vap->va_nblocks;
+	inode->i_mtime	    = vap->va_mtime.tv_sec;
+	inode->i_ctime	    = vap->va_ctime.tv_sec;
+	inode->i_atime	    = vap->va_atime.tv_sec;
+	if (vap->va_xflags & XFS_XFLAG_IMMUTABLE)
+		inode->i_flags |= S_IMMUTABLE;
+	else
+		inode->i_flags &= ~S_IMMUTABLE;
+	if (vap->va_xflags & XFS_XFLAG_APPEND)
+		inode->i_flags |= S_APPEND;
+	else
+		inode->i_flags &= ~S_APPEND;
+	if (vap->va_xflags & XFS_XFLAG_SYNC)
+		inode->i_flags |= S_SYNC;
+	else
+		inode->i_flags &= ~S_SYNC;
+	if (vap->va_xflags & XFS_XFLAG_NOATIME)
+		inode->i_flags |= S_NOATIME;
+	else
+		inode->i_flags &= ~S_NOATIME;
+}
+
+/*
+ * Revalidate the Linux inode from the vnode.
+ */
+int
+vn_revalidate(
+	struct vnode	*vp)
+{
+	vattr_t		va;
+	int		error;
+
+	vn_trace_entry(vp, "vn_revalidate", (inst_t *)__return_address);
+	ASSERT(vp->v_fbhv != NULL);
+
+	va.va_mask = XFS_AT_STAT|XFS_AT_XFLAGS;
+	VOP_GETATTR(vp, &va, 0, NULL, error);
+	if (!error) {
+		vn_revalidate_core(vp, &va);
+		VUNMODIFY(vp);
+	}
+	return -error;
+}
+
+/*
+ * purge a vnode from the cache
+ * At this point the vnode is guaranteed to have no references (vn_count == 0)
+ * The caller has to make sure that there are no ways someone could
+ * get a handle (via vn_get) on the vnode (usually done via a mount/vfs lock).
+ */
+void
+vn_purge(
+	struct vnode	*vp,
+	vmap_t		*vmap)
+{
+	vn_trace_entry(vp, "vn_purge", (inst_t *)__return_address);
+
+again:
+	/*
+	 * Check whether vp has already been reclaimed since our caller
+	 * sampled its version while holding a filesystem cache lock that
+	 * its VOP_RECLAIM function acquires.
+	 */
+	VN_LOCK(vp);
+	if (vp->v_number != vmap->v_number) {
+		VN_UNLOCK(vp, 0);
+		return;
+	}
+
+	/*
+	 * If vp is being reclaimed or inactivated, wait until it is inert,
+	 * then proceed.  Can't assume that vnode is actually reclaimed
+	 * just because the reclaimed flag is asserted -- a vn_alloc
+	 * reclaim can fail.
+	 */
+	if (vp->v_flag & (VINACT | VRECLM)) {
+		ASSERT(vn_count(vp) == 0);
+		vp->v_flag |= VWAIT;
+		sv_wait(vptosync(vp), PINOD, &vp->v_lock, 0);
+		goto again;
+	}
+
+	/*
+	 * Another process could have raced in and gotten this vnode...
+	 */
+	if (vn_count(vp) > 0) {
+		VN_UNLOCK(vp, 0);
+		return;
+	}
+
+	XFS_STATS_DEC(vn_active);
+	vp->v_flag |= VRECLM;
+	VN_UNLOCK(vp, 0);
+
+	/*
+	 * Call VOP_RECLAIM and clean vp. The FSYNC_INVAL flag tells
+	 * vp's filesystem to flush and invalidate all cached resources.
+	 * When vn_reclaim returns, vp should have no private data,
+	 * either in a system cache or attached to v_data.
+	 */
+	if (vn_reclaim(vp) != 0)
+		panic("vn_purge: cannot reclaim");
+
+	/*
+	 * Wakeup anyone waiting for vp to be reclaimed.
+	 */
+	vn_wakeup(vp);
+}
+
+/*
+ * Add a reference to a referenced vnode.
+ */
+struct vnode *
+vn_hold(
+	struct vnode	*vp)
+{
+	struct inode	*inode;
+
+	XFS_STATS_INC(vn_hold);
+
+	VN_LOCK(vp);
+	inode = igrab(LINVFS_GET_IP(vp));
+	ASSERT(inode);
+	VN_UNLOCK(vp, 0);
+
+	return vp;
+}
+
+/*
+ *  Call VOP_INACTIVE on last reference.
+ */
+void
+vn_rele(
+	struct vnode	*vp)
+{
+	int		vcnt;
+	int		cache;
+
+	XFS_STATS_INC(vn_rele);
+
+	VN_LOCK(vp);
+
+	vn_trace_entry(vp, "vn_rele", (inst_t *)__return_address);
+	vcnt = vn_count(vp);
+
+	/*
+	 * Since we always get called from put_inode we know
+	 * that i_count won't be decremented after we
+	 * return.
+	 */
+	if (!vcnt) {
+		/*
+		 * As soon as we turn this on, noone can find us in vn_get
+		 * until we turn off VINACT or VRECLM
+		 */
+		vp->v_flag |= VINACT;
+		VN_UNLOCK(vp, 0);
+
+		/*
+		 * Do not make the VOP_INACTIVE call if there
+		 * are no behaviors attached to the vnode to call.
+		 */
+		if (vp->v_fbhv)
+			VOP_INACTIVE(vp, NULL, cache);
+
+		VN_LOCK(vp);
+		if (vp->v_flag & VWAIT)
+			sv_broadcast(vptosync(vp));
+
+		vp->v_flag &= ~(VINACT|VWAIT|VRECLM|VMODIFIED);
+	}
+
+	VN_UNLOCK(vp, 0);
+
+	vn_trace_exit(vp, "vn_rele", (inst_t *)__return_address);
+}
+
+/*
+ * Finish the removal of a vnode.
+ */
+void
+vn_remove(
+	struct vnode	*vp)
+{
+	vmap_t		vmap;
+
+	/* Make sure we don't do this to the same vnode twice */
+	if (!(vp->v_fbhv))
+		return;
+
+	XFS_STATS_INC(vn_remove);
+	vn_trace_exit(vp, "vn_remove", (inst_t *)__return_address);
+
+	/*
+	 * After the following purge the vnode
+	 * will no longer exist.
+	 */
+	VMAP(vp, vmap);
+	vn_purge(vp, &vmap);
+}
+
+
+#ifdef	XFS_VNODE_TRACE
+
+#define KTRACE_ENTER(vp, vk, s, line, ra)			\
+	ktrace_enter(	(vp)->v_trace,				\
+/*  0 */		(void *)(__psint_t)(vk),		\
+/*  1 */		(void *)(s),				\
+/*  2 */		(void *)(__psint_t) line,		\
+/*  3 */		(void *)(vn_count(vp)), \
+/*  4 */		(void *)(ra),				\
+/*  5 */		(void *)(__psunsigned_t)(vp)->v_flag,	\
+/*  6 */		(void *)(__psint_t)smp_processor_id(),	\
+/*  7 */		(void *)(__psint_t)(current->pid),	\
+/*  8 */		(void *)__return_address,		\
+/*  9 */		0, 0, 0, 0, 0, 0, 0)
+
+/*
+ * Vnode tracing code.
+ */
+void
+vn_trace_entry(vnode_t *vp, char *func, inst_t *ra)
+{
+	KTRACE_ENTER(vp, VNODE_KTRACE_ENTRY, func, 0, ra);
+}
+
+void
+vn_trace_exit(vnode_t *vp, char *func, inst_t *ra)
+{
+	KTRACE_ENTER(vp, VNODE_KTRACE_EXIT, func, 0, ra);
+}
+
+void
+vn_trace_hold(vnode_t *vp, char *file, int line, inst_t *ra)
+{
+	KTRACE_ENTER(vp, VNODE_KTRACE_HOLD, file, line, ra);
+}
+
+void
+vn_trace_ref(vnode_t *vp, char *file, int line, inst_t *ra)
+{
+	KTRACE_ENTER(vp, VNODE_KTRACE_REF, file, line, ra);
+}
+
+void
+vn_trace_rele(vnode_t *vp, char *file, int line, inst_t *ra)
+{
+	KTRACE_ENTER(vp, VNODE_KTRACE_RELE, file, line, ra);
+}
+#endif	/* XFS_VNODE_TRACE */
diff --git a/fs/xfs/linux-2.4/xfs_vnode.h b/fs/xfs/linux-2.4/xfs_vnode.h
new file mode 100644
index 00000000000000..cf3d36f92d62d0
--- /dev/null
+++ b/fs/xfs/linux-2.4/xfs_vnode.h
@@ -0,0 +1,668 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ *
+ * Portions Copyright (c) 1989, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+#ifndef __XFS_VNODE_H__
+#define __XFS_VNODE_H__
+
+struct uio;
+struct file;
+struct vattr;
+struct xfs_iomap;
+struct attrlist_cursor_kern;
+
+/*
+ * Vnode types.  VNON means no type.
+ */
+enum vtype	{ VNON, VREG, VDIR, VBLK, VCHR, VLNK, VFIFO, VBAD, VSOCK };
+
+typedef xfs_ino_t vnumber_t;
+typedef struct dentry vname_t;
+typedef bhv_head_t vn_bhv_head_t;
+
+/*
+ * MP locking protocols:
+ *	v_flag, v_vfsp				VN_LOCK/VN_UNLOCK
+ *	v_type					read-only or fs-dependent
+ */
+typedef struct vnode {
+	__u32		v_flag;			/* vnode flags (see below) */
+	enum vtype	v_type;			/* vnode type */
+	struct vfs	*v_vfsp;		/* ptr to containing VFS */
+	vnumber_t	v_number;		/* in-core vnode number */
+	vn_bhv_head_t	v_bh;			/* behavior head */
+	spinlock_t	v_lock;			/* VN_LOCK/VN_UNLOCK */
+	struct inode	v_inode;		/* Linux inode */
+#ifdef XFS_VNODE_TRACE
+	struct ktrace	*v_trace;		/* trace header structure    */
+#endif
+} vnode_t;
+
+#define v_fbhv			v_bh.bh_first	       /* first behavior */
+#define v_fops			v_bh.bh_first->bd_ops  /* first behavior ops */
+
+#define VNODE_POSITION_BASE	BHV_POSITION_BASE	/* chain bottom */
+#define VNODE_POSITION_TOP	BHV_POSITION_TOP	/* chain top */
+#define VNODE_POSITION_INVALID	BHV_POSITION_INVALID	/* invalid pos. num */
+
+typedef enum {
+	VN_BHV_UNKNOWN,		/* not specified */
+	VN_BHV_XFS,		/* xfs */
+	VN_BHV_DM,		/* data migration */
+	VN_BHV_QM,		/* quota manager */
+	VN_BHV_IO,		/* IO path */
+	VN_BHV_END		/* housekeeping end-of-range */
+} vn_bhv_t;
+
+#define VNODE_POSITION_XFS	(VNODE_POSITION_BASE)
+#define VNODE_POSITION_DM	(VNODE_POSITION_BASE+10)
+#define VNODE_POSITION_QM	(VNODE_POSITION_BASE+20)
+#define VNODE_POSITION_IO	(VNODE_POSITION_BASE+30)
+
+/*
+ * Macros for dealing with the behavior descriptor inside of the vnode.
+ */
+#define BHV_TO_VNODE(bdp)	((vnode_t *)BHV_VOBJ(bdp))
+#define BHV_TO_VNODE_NULL(bdp)	((vnode_t *)BHV_VOBJNULL(bdp))
+
+#define VN_BHV_HEAD(vp)			((bhv_head_t *)(&((vp)->v_bh)))
+#define vn_bhv_head_init(bhp,name)	bhv_head_init(bhp,name)
+#define vn_bhv_remove(bhp,bdp)		bhv_remove(bhp,bdp)
+#define vn_bhv_lookup(bhp,ops)		bhv_lookup(bhp,ops)
+#define vn_bhv_lookup_unlocked(bhp,ops) bhv_lookup_unlocked(bhp,ops)
+
+/*
+ * Vnode to Linux inode mapping.
+ */
+#define LINVFS_GET_VP(inode)	((vnode_t *)list_entry(inode, vnode_t, v_inode))
+#define LINVFS_GET_IP(vp)	(&(vp)->v_inode)
+
+/*
+ * Convert between vnode types and inode formats (since POSIX.1
+ * defines mode word of stat structure in terms of inode formats).
+ */
+extern enum vtype	iftovt_tab[];
+extern u_short		vttoif_tab[];
+#define IFTOVT(mode)	(iftovt_tab[((mode) & S_IFMT) >> 12])
+#define VTTOIF(indx)	(vttoif_tab[(int)(indx)])
+#define MAKEIMODE(indx, mode)	(int)(VTTOIF(indx) | (mode))
+
+
+/*
+ * Vnode flags.
+ */
+#define VINACT		       0x1	/* vnode is being inactivated	*/
+#define VRECLM		       0x2	/* vnode is being reclaimed	*/
+#define VWAIT		       0x4	/* waiting for VINACT/VRECLM to end */
+#define VMODIFIED	       0x8	/* XFS inode state possibly differs */
+					/* to the Linux inode state.	*/
+
+/*
+ * Values for the VOP_RWLOCK and VOP_RWUNLOCK flags parameter.
+ */
+typedef enum vrwlock {
+	VRWLOCK_NONE,
+	VRWLOCK_READ,
+	VRWLOCK_WRITE,
+	VRWLOCK_WRITE_DIRECT,
+	VRWLOCK_TRY_READ,
+	VRWLOCK_TRY_WRITE
+} vrwlock_t;
+
+/*
+ * Return values for VOP_INACTIVE.  A return value of
+ * VN_INACTIVE_NOCACHE implies that the file system behavior
+ * has disassociated its state and bhv_desc_t from the vnode.
+ */
+#define	VN_INACTIVE_CACHE	0
+#define	VN_INACTIVE_NOCACHE	1
+
+/*
+ * Values for the cmd code given to VOP_VNODE_CHANGE.
+ */
+typedef enum vchange {
+	VCHANGE_FLAGS_FRLOCKS		= 0,
+	VCHANGE_FLAGS_ENF_LOCKING	= 1,
+	VCHANGE_FLAGS_TRUNCATED		= 2,
+	VCHANGE_FLAGS_PAGE_DIRTY	= 3,
+	VCHANGE_FLAGS_IOEXCL_COUNT	= 4
+} vchange_t;
+
+
+typedef int	(*vop_open_t)(bhv_desc_t *, struct cred *);
+typedef ssize_t (*vop_read_t)(bhv_desc_t *, struct file *, char *,
+				size_t, loff_t *, int, struct cred *);
+typedef ssize_t (*vop_write_t)(bhv_desc_t *, struct file *, const char *,
+				size_t, loff_t *, int, struct cred *);
+typedef int	(*vop_ioctl_t)(bhv_desc_t *, struct inode *, struct file *,
+				int, unsigned int, unsigned long);
+typedef int	(*vop_getattr_t)(bhv_desc_t *, struct vattr *, int,
+				struct cred *);
+typedef int	(*vop_setattr_t)(bhv_desc_t *, struct vattr *, int,
+				struct cred *);
+typedef int	(*vop_access_t)(bhv_desc_t *, int, struct cred *);
+typedef int	(*vop_lookup_t)(bhv_desc_t *, vname_t *, vnode_t **,
+				int, vnode_t *, struct cred *);
+typedef int	(*vop_create_t)(bhv_desc_t *, vname_t *, struct vattr *,
+				vnode_t **, struct cred *);
+typedef int	(*vop_remove_t)(bhv_desc_t *, vname_t *, struct cred *);
+typedef int	(*vop_link_t)(bhv_desc_t *, vnode_t *, vname_t *,
+				struct cred *);
+typedef int	(*vop_rename_t)(bhv_desc_t *, vname_t *, vnode_t *, vname_t *,
+				struct cred *);
+typedef int	(*vop_mkdir_t)(bhv_desc_t *, vname_t *, struct vattr *,
+				vnode_t **, struct cred *);
+typedef int	(*vop_rmdir_t)(bhv_desc_t *, vname_t *, struct cred *);
+typedef int	(*vop_readdir_t)(bhv_desc_t *, struct uio *, struct cred *,
+				int *);
+typedef int	(*vop_symlink_t)(bhv_desc_t *, vname_t *, struct vattr *,
+				char *, vnode_t **, struct cred *);
+typedef int	(*vop_readlink_t)(bhv_desc_t *, struct uio *, int,
+				struct cred *);
+typedef int	(*vop_fsync_t)(bhv_desc_t *, int, struct cred *,
+				xfs_off_t, xfs_off_t);
+typedef int	(*vop_inactive_t)(bhv_desc_t *, struct cred *);
+typedef int	(*vop_fid2_t)(bhv_desc_t *, struct fid *);
+typedef int	(*vop_release_t)(bhv_desc_t *);
+typedef int	(*vop_rwlock_t)(bhv_desc_t *, vrwlock_t);
+typedef void	(*vop_rwunlock_t)(bhv_desc_t *, vrwlock_t);
+typedef	int	(*vop_frlock_t)(bhv_desc_t *, int, struct file_lock *,int,
+				xfs_off_t, struct cred *);
+typedef int	(*vop_bmap_t)(bhv_desc_t *, xfs_off_t, ssize_t, int,
+				struct xfs_iomap *, int *);
+typedef int	(*vop_reclaim_t)(bhv_desc_t *);
+typedef int	(*vop_attr_get_t)(bhv_desc_t *, char *, char *, int *, int,
+				struct cred *);
+typedef	int	(*vop_attr_set_t)(bhv_desc_t *, char *, char *, int, int,
+				struct cred *);
+typedef	int	(*vop_attr_remove_t)(bhv_desc_t *, char *, int, struct cred *);
+typedef	int	(*vop_attr_list_t)(bhv_desc_t *, char *, int, int,
+				struct attrlist_cursor_kern *, struct cred *);
+typedef void	(*vop_link_removed_t)(bhv_desc_t *, vnode_t *, int);
+typedef void	(*vop_vnode_change_t)(bhv_desc_t *, vchange_t, __psint_t);
+typedef void	(*vop_ptossvp_t)(bhv_desc_t *, xfs_off_t, xfs_off_t, int);
+typedef void	(*vop_pflushinvalvp_t)(bhv_desc_t *, xfs_off_t, xfs_off_t, int);
+typedef int	(*vop_pflushvp_t)(bhv_desc_t *, xfs_off_t, xfs_off_t,
+				uint64_t, int);
+typedef int	(*vop_iflush_t)(bhv_desc_t *, int);
+
+
+typedef struct vnodeops {
+	bhv_position_t  vn_position;    /* position within behavior chain */
+	vop_open_t		vop_open;
+	vop_read_t		vop_read;
+	vop_write_t		vop_write;
+	vop_ioctl_t		vop_ioctl;
+	vop_getattr_t		vop_getattr;
+	vop_setattr_t		vop_setattr;
+	vop_access_t		vop_access;
+	vop_lookup_t		vop_lookup;
+	vop_create_t		vop_create;
+	vop_remove_t		vop_remove;
+	vop_link_t		vop_link;
+	vop_rename_t		vop_rename;
+	vop_mkdir_t		vop_mkdir;
+	vop_rmdir_t		vop_rmdir;
+	vop_readdir_t		vop_readdir;
+	vop_symlink_t		vop_symlink;
+	vop_readlink_t		vop_readlink;
+	vop_fsync_t		vop_fsync;
+	vop_inactive_t		vop_inactive;
+	vop_fid2_t		vop_fid2;
+	vop_rwlock_t		vop_rwlock;
+	vop_rwunlock_t		vop_rwunlock;
+	vop_frlock_t		vop_frlock;
+	vop_bmap_t		vop_bmap;
+	vop_reclaim_t		vop_reclaim;
+	vop_attr_get_t		vop_attr_get;
+	vop_attr_set_t		vop_attr_set;
+	vop_attr_remove_t	vop_attr_remove;
+	vop_attr_list_t		vop_attr_list;
+	vop_link_removed_t	vop_link_removed;
+	vop_vnode_change_t	vop_vnode_change;
+	vop_ptossvp_t		vop_tosspages;
+	vop_pflushinvalvp_t	vop_flushinval_pages;
+	vop_pflushvp_t		vop_flush_pages;
+	vop_release_t		vop_release;
+	vop_iflush_t		vop_iflush;
+} vnodeops_t;
+
+/*
+ * VOP's.
+ */
+#define _VOP_(op, vp)	(*((vnodeops_t *)(vp)->v_fops)->op)
+
+#define VOP_READ(vp,file,buf,size,offset,ioflags,cr,rv)			\
+	rv = _VOP_(vop_read, vp)((vp)->v_fbhv,file,buf,size,offset,ioflags,cr)
+#define VOP_WRITE(vp,file,buf,size,offset,ioflags,cr,rv)		\
+	rv = _VOP_(vop_write, vp)((vp)->v_fbhv,file,buf,size,offset,ioflags,cr)
+#define VOP_BMAP(vp,of,sz,rw,b,n,rv)					\
+	rv = _VOP_(vop_bmap, vp)((vp)->v_fbhv,of,sz,rw,b,n)
+#define VOP_OPEN(vp, cr, rv)						\
+	rv = _VOP_(vop_open, vp)((vp)->v_fbhv, cr)
+#define VOP_GETATTR(vp, vap, f, cr, rv)					\
+	rv = _VOP_(vop_getattr, vp)((vp)->v_fbhv, vap, f, cr)
+#define	VOP_SETATTR(vp, vap, f, cr, rv)					\
+	rv = _VOP_(vop_setattr, vp)((vp)->v_fbhv, vap, f, cr)
+#define	VOP_ACCESS(vp, mode, cr, rv)					\
+	rv = _VOP_(vop_access, vp)((vp)->v_fbhv, mode, cr)
+#define	VOP_LOOKUP(vp,d,vpp,f,rdir,cr,rv)				\
+	rv = _VOP_(vop_lookup, vp)((vp)->v_fbhv,d,vpp,f,rdir,cr)
+#define VOP_CREATE(dvp,d,vap,vpp,cr,rv)					\
+	rv = _VOP_(vop_create, dvp)((dvp)->v_fbhv,d,vap,vpp,cr)
+#define VOP_REMOVE(dvp,d,cr,rv)						\
+	rv = _VOP_(vop_remove, dvp)((dvp)->v_fbhv,d,cr)
+#define	VOP_LINK(tdvp,fvp,d,cr,rv)					\
+	rv = _VOP_(vop_link, tdvp)((tdvp)->v_fbhv,fvp,d,cr)
+#define	VOP_RENAME(fvp,fnm,tdvp,tnm,cr,rv)				\
+	rv = _VOP_(vop_rename, fvp)((fvp)->v_fbhv,fnm,tdvp,tnm,cr)
+#define	VOP_MKDIR(dp,d,vap,vpp,cr,rv)					\
+	rv = _VOP_(vop_mkdir, dp)((dp)->v_fbhv,d,vap,vpp,cr)
+#define	VOP_RMDIR(dp,d,cr,rv)						\
+	rv = _VOP_(vop_rmdir, dp)((dp)->v_fbhv,d,cr)
+#define	VOP_READDIR(vp,uiop,cr,eofp,rv)					\
+	rv = _VOP_(vop_readdir, vp)((vp)->v_fbhv,uiop,cr,eofp)
+#define	VOP_SYMLINK(dvp,d,vap,tnm,vpp,cr,rv)				\
+	rv = _VOP_(vop_symlink, dvp) ((dvp)->v_fbhv,d,vap,tnm,vpp,cr)
+#define	VOP_READLINK(vp,uiop,fl,cr,rv)					\
+	rv = _VOP_(vop_readlink, vp)((vp)->v_fbhv,uiop,fl,cr)
+#define	VOP_FSYNC(vp,f,cr,b,e,rv)					\
+	rv = _VOP_(vop_fsync, vp)((vp)->v_fbhv,f,cr,b,e)
+#define VOP_INACTIVE(vp, cr, rv)					\
+	rv = _VOP_(vop_inactive, vp)((vp)->v_fbhv, cr)
+#define VOP_RELEASE(vp, rv)						\
+	rv = _VOP_(vop_release, vp)((vp)->v_fbhv)
+#define VOP_FID2(vp, fidp, rv)						\
+	rv = _VOP_(vop_fid2, vp)((vp)->v_fbhv, fidp)
+#define VOP_RWLOCK(vp,i)						\
+	(void)_VOP_(vop_rwlock, vp)((vp)->v_fbhv, i)
+#define VOP_RWLOCK_TRY(vp,i)						\
+	_VOP_(vop_rwlock, vp)((vp)->v_fbhv, i)
+#define VOP_RWUNLOCK(vp,i)						\
+	(void)_VOP_(vop_rwunlock, vp)((vp)->v_fbhv, i)
+#define VOP_FRLOCK(vp,c,fl,flags,offset,fr,rv)				\
+	rv = _VOP_(vop_frlock, vp)((vp)->v_fbhv,c,fl,flags,offset,fr)
+#define VOP_RECLAIM(vp, rv)						\
+	rv = _VOP_(vop_reclaim, vp)((vp)->v_fbhv)
+#define VOP_ATTR_GET(vp, name, val, vallenp, fl, cred, rv)		\
+	rv = _VOP_(vop_attr_get, vp)((vp)->v_fbhv,name,val,vallenp,fl,cred)
+#define	VOP_ATTR_SET(vp, name, val, vallen, fl, cred, rv)		\
+	rv = _VOP_(vop_attr_set, vp)((vp)->v_fbhv,name,val,vallen,fl,cred)
+#define	VOP_ATTR_REMOVE(vp, name, flags, cred, rv)			\
+	rv = _VOP_(vop_attr_remove, vp)((vp)->v_fbhv,name,flags,cred)
+#define	VOP_ATTR_LIST(vp, buf, buflen, fl, cursor, cred, rv)		\
+	rv = _VOP_(vop_attr_list, vp)((vp)->v_fbhv,buf,buflen,fl,cursor,cred)
+#define VOP_LINK_REMOVED(vp, dvp, linkzero)				\
+	(void)_VOP_(vop_link_removed, vp)((vp)->v_fbhv, dvp, linkzero)
+#define VOP_VNODE_CHANGE(vp, cmd, val)					\
+	(void)_VOP_(vop_vnode_change, vp)((vp)->v_fbhv,cmd,val)
+/*
+ * These are page cache functions that now go thru VOPs.
+ * 'last' parameter is unused and left in for IRIX compatibility
+ */
+#define VOP_TOSS_PAGES(vp, first, last, fiopt)				\
+	_VOP_(vop_tosspages, vp)((vp)->v_fbhv,first, last, fiopt)
+/*
+ * 'last' parameter is unused and left in for IRIX compatibility
+ */
+#define VOP_FLUSHINVAL_PAGES(vp, first, last, fiopt)			\
+	_VOP_(vop_flushinval_pages, vp)((vp)->v_fbhv,first,last,fiopt)
+/*
+ * 'last' parameter is unused and left in for IRIX compatibility
+ */
+#define VOP_FLUSH_PAGES(vp, first, last, flags, fiopt, rv)		\
+	rv = _VOP_(vop_flush_pages, vp)((vp)->v_fbhv,first,last,flags,fiopt)
+#define VOP_IOCTL(vp, inode, filp, fl, cmd, arg, rv)			\
+	rv = _VOP_(vop_ioctl, vp)((vp)->v_fbhv,inode,filp,fl,cmd,arg)
+#define VOP_IFLUSH(vp, flags, rv)					\
+	rv = _VOP_(vop_iflush, vp)((vp)->v_fbhv, flags)
+
+/*
+ * Flags for read/write calls - same values as IRIX
+ */
+#define IO_ISDIRECT	0x00004		/* bypass page cache */
+#define IO_INVIS	0x00020		/* don't update inode timestamps */
+#define IO_ISLOCKED	0x00800		/* don't do inode locking */
+
+/*
+ * Flags for VOP_IFLUSH call
+ */
+#define FLUSH_SYNC		1	/* wait for flush to complete	*/
+#define FLUSH_INODE		2	/* flush the inode itself	*/
+#define FLUSH_LOG		4	/* force the last log entry for
+					 * this inode out to disk	*/
+
+/*
+ * Flush/Invalidate options for VOP_TOSS_PAGES, VOP_FLUSHINVAL_PAGES and
+ *	VOP_FLUSH_PAGES.
+ */
+#define FI_NONE			0	/* none */
+#define FI_REMAPF		1	/* Do a remapf prior to the operation */
+#define FI_REMAPF_LOCKED	2	/* Do a remapf prior to the operation.
+					   Prevent VM access to the pages until
+					   the operation completes. */
+
+/*
+ * Vnode attributes.  va_mask indicates those attributes the caller
+ * wants to set or extract.
+ */
+typedef struct vattr {
+	int		va_mask;	/* bit-mask of attributes present */
+	enum vtype	va_type;	/* vnode type (for create) */
+	mode_t		va_mode;	/* file access mode and type */
+	nlink_t		va_nlink;	/* number of references to file */
+	uid_t		va_uid;		/* owner user id */
+	gid_t		va_gid;		/* owner group id */
+	xfs_ino_t	va_nodeid;	/* file id */
+	xfs_off_t	va_size;	/* file size in bytes */
+	u_long		va_blocksize;	/* blocksize preferred for i/o */
+	struct timespec	va_atime;	/* time of last access */
+	struct timespec	va_mtime;	/* time of last modification */
+	struct timespec	va_ctime;	/* time file changed */
+	u_int		va_gen;		/* generation number of file */
+	xfs_dev_t	va_rdev;	/* device the special file represents */
+	__int64_t	va_nblocks;	/* number of blocks allocated */
+	u_long		va_xflags;	/* random extended file flags */
+	u_long		va_extsize;	/* file extent size */
+	u_long		va_nextents;	/* number of extents in file */
+	u_long		va_anextents;	/* number of attr extents in file */
+	int		va_projid;	/* project id */
+} vattr_t;
+
+/*
+ * setattr or getattr attributes
+ */
+#define XFS_AT_TYPE		0x00000001
+#define XFS_AT_MODE		0x00000002
+#define XFS_AT_UID		0x00000004
+#define XFS_AT_GID		0x00000008
+#define XFS_AT_FSID		0x00000010
+#define XFS_AT_NODEID		0x00000020
+#define XFS_AT_NLINK		0x00000040
+#define XFS_AT_SIZE		0x00000080
+#define XFS_AT_ATIME		0x00000100
+#define XFS_AT_MTIME		0x00000200
+#define XFS_AT_CTIME		0x00000400
+#define XFS_AT_RDEV		0x00000800
+#define XFS_AT_BLKSIZE		0x00001000
+#define XFS_AT_NBLOCKS		0x00002000
+#define XFS_AT_VCODE		0x00004000
+#define XFS_AT_MAC		0x00008000
+#define XFS_AT_UPDATIME		0x00010000
+#define XFS_AT_UPDMTIME		0x00020000
+#define XFS_AT_UPDCTIME		0x00040000
+#define XFS_AT_ACL		0x00080000
+#define XFS_AT_CAP		0x00100000
+#define XFS_AT_INF		0x00200000
+#define XFS_AT_XFLAGS		0x00400000
+#define XFS_AT_EXTSIZE		0x00800000
+#define XFS_AT_NEXTENTS		0x01000000
+#define XFS_AT_ANEXTENTS	0x02000000
+#define XFS_AT_PROJID		0x04000000
+#define XFS_AT_SIZE_NOPERM	0x08000000
+#define XFS_AT_GENCOUNT		0x10000000
+
+#define XFS_AT_ALL	(XFS_AT_TYPE|XFS_AT_MODE|XFS_AT_UID|XFS_AT_GID|\
+		XFS_AT_FSID|XFS_AT_NODEID|XFS_AT_NLINK|XFS_AT_SIZE|\
+		XFS_AT_ATIME|XFS_AT_MTIME|XFS_AT_CTIME|XFS_AT_RDEV|\
+		XFS_AT_BLKSIZE|XFS_AT_NBLOCKS|XFS_AT_VCODE|XFS_AT_MAC|\
+		XFS_AT_ACL|XFS_AT_CAP|XFS_AT_INF|XFS_AT_XFLAGS|XFS_AT_EXTSIZE|\
+		XFS_AT_NEXTENTS|XFS_AT_ANEXTENTS|XFS_AT_PROJID|XFS_AT_GENCOUNT)
+
+#define XFS_AT_STAT	(XFS_AT_TYPE|XFS_AT_MODE|XFS_AT_UID|XFS_AT_GID|\
+		XFS_AT_FSID|XFS_AT_NODEID|XFS_AT_NLINK|XFS_AT_SIZE|\
+		XFS_AT_ATIME|XFS_AT_MTIME|XFS_AT_CTIME|XFS_AT_RDEV|\
+		XFS_AT_BLKSIZE|XFS_AT_NBLOCKS|XFS_AT_PROJID)
+
+#define XFS_AT_TIMES	(XFS_AT_ATIME|XFS_AT_MTIME|XFS_AT_CTIME)
+
+#define XFS_AT_UPDTIMES	(XFS_AT_UPDATIME|XFS_AT_UPDMTIME|XFS_AT_UPDCTIME)
+
+#define XFS_AT_NOSET	(XFS_AT_NLINK|XFS_AT_RDEV|XFS_AT_FSID|XFS_AT_NODEID|\
+		XFS_AT_TYPE|XFS_AT_BLKSIZE|XFS_AT_NBLOCKS|XFS_AT_VCODE|\
+		XFS_AT_NEXTENTS|XFS_AT_ANEXTENTS|XFS_AT_GENCOUNT)
+
+/*
+ *  Modes.
+ */
+#define VSUID	S_ISUID		/* set user id on execution */
+#define VSGID	S_ISGID		/* set group id on execution */
+#define VSVTX	S_ISVTX		/* save swapped text even after use */
+#define VREAD	S_IRUSR		/* read, write, execute permissions */
+#define VWRITE	S_IWUSR
+#define VEXEC	S_IXUSR
+
+#define MODEMASK S_IALLUGO	/* mode bits plus permission bits */
+
+/*
+ * Check whether mandatory file locking is enabled.
+ */
+#define MANDLOCK(vp, mode)	\
+	((vp)->v_type == VREG && ((mode) & (VSGID|(VEXEC>>3))) == VSGID)
+
+extern void	vn_init(void);
+extern int	vn_wait(struct vnode *);
+extern vnode_t	*vn_initialize(struct inode *);
+
+/*
+ * Acquiring and invalidating vnodes:
+ *
+ *	if (vn_get(vp, version, 0))
+ *		...;
+ *	vn_purge(vp, version);
+ *
+ * vn_get and vn_purge must be called with vmap_t arguments, sampled
+ * while a lock that the vnode's VOP_RECLAIM function acquires is
+ * held, to ensure that the vnode sampled with the lock held isn't
+ * recycled (VOP_RECLAIMed) or deallocated between the release of the lock
+ * and the subsequent vn_get or vn_purge.
+ */
+
+/*
+ * vnode_map structures _must_ match vn_epoch and vnode structure sizes.
+ */
+typedef struct vnode_map {
+	vfs_t		*v_vfsp;
+	vnumber_t	v_number;		/* in-core vnode number */
+	xfs_ino_t	v_ino;			/* inode #	*/
+} vmap_t;
+
+#define VMAP(vp, vmap)	{(vmap).v_vfsp	 = (vp)->v_vfsp,	\
+			 (vmap).v_number = (vp)->v_number,	\
+			 (vmap).v_ino	 = (vp)->v_inode.i_ino; }
+
+extern void	vn_purge(struct vnode *, vmap_t *);
+extern vnode_t	*vn_get(struct vnode *, vmap_t *);
+extern int	vn_revalidate(struct vnode *);
+extern void	vn_revalidate_core(struct vnode *, vattr_t *);
+extern void	vn_remove(struct vnode *);
+
+static inline int vn_count(struct vnode *vp)
+{
+	return atomic_read(&LINVFS_GET_IP(vp)->i_count);
+}
+
+/*
+ * Vnode reference counting functions (and macros for compatibility).
+ */
+extern vnode_t	*vn_hold(struct vnode *);
+extern void	vn_rele(struct vnode *);
+
+#if defined(XFS_VNODE_TRACE)
+#define VN_HOLD(vp)		\
+	((void)vn_hold(vp),	\
+	  vn_trace_hold(vp, __FILE__, __LINE__, (inst_t *)__return_address))
+#define VN_RELE(vp)		\
+	  (vn_trace_rele(vp, __FILE__, __LINE__, (inst_t *)__return_address), \
+	   iput(LINVFS_GET_IP(vp)))
+#else
+#define VN_HOLD(vp)		((void)vn_hold(vp))
+#define VN_RELE(vp)		(iput(LINVFS_GET_IP(vp)))
+#endif
+
+/*
+ * Vname handling macros.
+ */
+#define VNAME(dentry)		((char *) (dentry)->d_name.name)
+#define VNAMELEN(dentry)	((dentry)->d_name.len)
+#define VNAME_TO_VNODE(dentry)	(LINVFS_GET_VP((dentry)->d_inode))
+
+/*
+ * Vnode spinlock manipulation.
+ */
+#define VN_LOCK(vp)		mutex_spinlock(&(vp)->v_lock)
+#define VN_UNLOCK(vp, s)	mutex_spinunlock(&(vp)->v_lock, s)
+#define VN_FLAGSET(vp,b)	vn_flagset(vp,b)
+#define VN_FLAGCLR(vp,b)	vn_flagclr(vp,b)
+
+static __inline__ void vn_flagset(struct vnode *vp, uint flag)
+{
+	spin_lock(&vp->v_lock);
+	vp->v_flag |= flag;
+	spin_unlock(&vp->v_lock);
+}
+
+static __inline__ void vn_flagclr(struct vnode *vp, uint flag)
+{
+	spin_lock(&vp->v_lock);
+	vp->v_flag &= ~flag;
+	spin_unlock(&vp->v_lock);
+}
+
+/*
+ * Update modify/access/change times on the vnode
+ */
+#define VN_MTIMESET(vp, tvp)	\
+		(LINVFS_GET_IP(vp)->i_mtime = (__int32_t)(tvp)->tv_sec)
+#define VN_ATIMESET(vp, tvp)	\
+		(LINVFS_GET_IP(vp)->i_atime = (__int32_t)(tvp)->tv_sec)
+#define VN_CTIMESET(vp, tvp)	\
+		(LINVFS_GET_IP(vp)->i_ctime = (__int32_t)(tvp)->tv_sec)
+
+/*
+ * Dealing with bad inodes
+ */
+static inline void vn_mark_bad(struct vnode *vp)
+{
+	struct inode *inode = LINVFS_GET_IP(vp);
+
+	remove_inode_hash(inode);
+	make_bad_inode(inode);
+}
+
+static inline int VN_BAD(struct vnode *vp)
+{
+	return is_bad_inode(LINVFS_GET_IP(vp));
+}
+
+
+/*
+ * Some useful predicates.
+ */
+#define	VN_MAPPED(vp)	((LINVFS_GET_IP(vp)->i_mapping->i_mmap != NULL) || \
+			 (LINVFS_GET_IP(vp)->i_mapping->i_mmap_shared != NULL))
+#define	VN_CACHED(vp)	(LINVFS_GET_IP(vp)->i_mapping->nrpages)
+#define VN_DIRTY(vp)	(!list_empty(&(LINVFS_GET_IP(vp)->i_dirty_data_buffers)))
+#define VMODIFY(vp)	VN_FLAGSET(vp, VMODIFIED)
+#define VUNMODIFY(vp)	VN_FLAGCLR(vp, VMODIFIED)
+
+/*
+ * Flags to VOP_SETATTR/VOP_GETATTR.
+ */
+#define	ATTR_UTIME	0x01	/* non-default utime(2) request */
+#define	ATTR_DMI	0x08	/* invocation from a DMI function */
+#define	ATTR_LAZY	0x80	/* set/get attributes lazily */
+#define	ATTR_NONBLOCK	0x100	/* return EAGAIN if operation would block */
+
+/*
+ * Flags to VOP_FSYNC and VOP_RECLAIM.
+ */
+#define FSYNC_NOWAIT	0	/* asynchronous flush */
+#define FSYNC_WAIT	0x1	/* synchronous fsync or forced reclaim */
+#define FSYNC_INVAL	0x2	/* flush and invalidate cached data */
+#define FSYNC_DATA	0x4	/* synchronous fsync of data only */
+
+/*
+ * Tracking vnode activity.
+ */
+#if defined(XFS_VNODE_TRACE)
+
+#define	VNODE_TRACE_SIZE	16		/* number of trace entries */
+#define	VNODE_KTRACE_ENTRY	1
+#define	VNODE_KTRACE_EXIT	2
+#define	VNODE_KTRACE_HOLD	3
+#define	VNODE_KTRACE_REF	4
+#define	VNODE_KTRACE_RELE	5
+
+extern void vn_trace_entry(struct vnode *, char *, inst_t *);
+extern void vn_trace_exit(struct vnode *, char *, inst_t *);
+extern void vn_trace_hold(struct vnode *, char *, int, inst_t *);
+extern void vn_trace_ref(struct vnode *, char *, int, inst_t *);
+extern void vn_trace_rele(struct vnode *, char *, int, inst_t *);
+
+#define	VN_TRACE(vp)		\
+	vn_trace_ref(vp, __FILE__, __LINE__, (inst_t *)__return_address)
+#else
+#define	vn_trace_entry(a,b,c)
+#define	vn_trace_exit(a,b,c)
+#define	vn_trace_hold(a,b,c,d)
+#define	vn_trace_ref(a,b,c,d)
+#define	vn_trace_rele(a,b,c,d)
+#define	VN_TRACE(vp)
+#endif
+
+#endif	/* __XFS_VNODE_H__ */
diff --git a/fs/xfs/quota/Makefile b/fs/xfs/quota/Makefile
new file mode 100644
index 00000000000000..626d1a98892419
--- /dev/null
+++ b/fs/xfs/quota/Makefile
@@ -0,0 +1,57 @@
+#
+# Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of version 2 of the GNU General Public License as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it would be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#
+# Further, this software is distributed without any warranty that it is
+# free of the rightful claim of any third person regarding infringement
+# or the like.	Any license provided herein, whether implied or
+# otherwise, applies only to this software file.  Patent licenses, if
+# any, provided herein do not apply to combinations of this program with
+# other software, or any other product whatsoever.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write the Free Software Foundation, Inc., 59
+# Temple Place - Suite 330, Boston MA 02111-1307, USA.
+#
+# Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+# Mountain View, CA  94043, or:
+#
+# http://www.sgi.com
+#
+# For further information regarding this notice, see:
+#
+# http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+#
+
+EXTRA_CFLAGS += -I $(TOPDIR)/fs/xfs -I $(TOPDIR)/fs/xfs/linux-2.4
+
+ifeq ($(CONFIG_XFS_DEBUG),y)
+	EXTRA_CFLAGS += -g -DDEBUG
+	#EXTRA_CFLAGS += -DQUOTADEBUG
+endif
+ifeq ($(CONFIG_XFS_TRACE),y)
+	EXTRA_CFLAGS += -DXFS_DQUOT_TRACE
+endif
+
+O_TARGET			:= xfs_quota.o
+ifneq ($(MAKECMDGOALS),modules_install)
+  obj-m				:= $(O_TARGET)
+endif
+
+obj-$(CONFIG_PROC_FS)		+= xfs_qm_stats.o
+
+obj-y				+= xfs_dquot.o \
+				   xfs_dquot_item.o \
+				   xfs_trans_dquot.o \
+				   xfs_qm_syscalls.o \
+				   xfs_qm_bhv.o \
+				   xfs_qm.o
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/xfs/quota/xfs_dquot.c b/fs/xfs/quota/xfs_dquot.c
new file mode 100644
index 00000000000000..fbfb24c7066ed2
--- /dev/null
+++ b/fs/xfs/quota/xfs_dquot.c
@@ -0,0 +1,1650 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.	 Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_alloc.h"
+#include "xfs_dmapi.h"
+#include "xfs_quota.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_bit.h"
+#include "xfs_rtalloc.h"
+#include "xfs_error.h"
+#include "xfs_itable.h"
+#include "xfs_rw.h"
+#include "xfs_acl.h"
+#include "xfs_cap.h"
+#include "xfs_mac.h"
+#include "xfs_attr.h"
+#include "xfs_buf_item.h"
+#include "xfs_trans_space.h"
+#include "xfs_trans_priv.h"
+
+#include "xfs_qm.h"
+
+
+/*
+   LOCK ORDER
+
+   inode lock		    (ilock)
+   dquot hash-chain lock    (hashlock)
+   xqm dquot freelist lock  (freelistlock
+   mount's dquot list lock  (mplistlock)
+   user dquot lock - lock ordering among dquots is based on the uid or gid
+   group dquot lock - similar to udquots. Between the two dquots, the udquot
+		      has to be locked first.
+   pin lock - the dquot lock must be held to take this lock.
+   flush lock - ditto.
+*/
+
+STATIC void		xfs_qm_dqflush_done(xfs_buf_t *, xfs_dq_logitem_t *);
+
+#ifdef DEBUG
+xfs_buftarg_t *xfs_dqerror_target;
+int xfs_do_dqerror;
+int xfs_dqreq_num;
+int xfs_dqerror_mod = 33;
+#endif
+
+/*
+ * Allocate and initialize a dquot. We don't always allocate fresh memory;
+ * we try to reclaim a free dquot if the number of incore dquots are above
+ * a threshold.
+ * The only field inside the core that gets initialized at this point
+ * is the d_id field. The idea is to fill in the entire q_core
+ * when we read in the on disk dquot.
+ */
+xfs_dquot_t *
+xfs_qm_dqinit(
+	xfs_mount_t  *mp,
+	xfs_dqid_t   id,
+	uint	     type)
+{
+	xfs_dquot_t	*dqp;
+	boolean_t	brandnewdquot;
+
+	brandnewdquot = xfs_qm_dqalloc_incore(&dqp);
+	dqp->dq_flags = type;
+	INT_SET(dqp->q_core.d_id, ARCH_CONVERT, id);
+	dqp->q_mount = mp;
+
+	/*
+	 * No need to re-initialize these if this is a reclaimed dquot.
+	 */
+	if (brandnewdquot) {
+		dqp->dq_flnext = dqp->dq_flprev = dqp;
+		mutex_init(&dqp->q_qlock,  MUTEX_DEFAULT, "xdq");
+		initnsema(&dqp->q_flock, 1, "fdq");
+		sv_init(&dqp->q_pinwait, SV_DEFAULT, "pdq");
+
+#ifdef XFS_DQUOT_TRACE
+		dqp->q_trace = ktrace_alloc(DQUOT_TRACE_SIZE, KM_SLEEP);
+		xfs_dqtrace_entry(dqp, "DQINIT");
+#endif
+	} else {
+		/*
+		 * Only the q_core portion was zeroed in dqreclaim_one().
+		 * So, we need to reset others.
+		 */
+		 dqp->q_nrefs = 0;
+		 dqp->q_blkno = 0;
+		 dqp->MPL_NEXT = dqp->HL_NEXT = NULL;
+		 dqp->HL_PREVP = dqp->MPL_PREVP = NULL;
+		 dqp->q_bufoffset = 0;
+		 dqp->q_fileoffset = 0;
+		 dqp->q_transp = NULL;
+		 dqp->q_gdquot = NULL;
+		 dqp->q_res_bcount = 0;
+		 dqp->q_res_icount = 0;
+		 dqp->q_res_rtbcount = 0;
+		 dqp->q_pincount = 0;
+		 dqp->q_hash = NULL;
+		 ASSERT(dqp->dq_flnext == dqp->dq_flprev);
+
+#ifdef XFS_DQUOT_TRACE
+		 ASSERT(dqp->q_trace);
+		 xfs_dqtrace_entry(dqp, "DQRECLAIMED_INIT");
+#endif
+	 }
+
+	/*
+	 * log item gets initialized later
+	 */
+	return (dqp);
+}
+
+/*
+ * This is called to free all the memory associated with a dquot
+ */
+void
+xfs_qm_dqdestroy(
+	xfs_dquot_t	*dqp)
+{
+	ASSERT(! XFS_DQ_IS_ON_FREELIST(dqp));
+
+	mutex_destroy(&dqp->q_qlock);
+	freesema(&dqp->q_flock);
+	sv_destroy(&dqp->q_pinwait);
+
+#ifdef XFS_DQUOT_TRACE
+	if (dqp->q_trace)
+	     ktrace_free(dqp->q_trace);
+	dqp->q_trace = NULL;
+#endif
+	kmem_zone_free(xfs_Gqm->qm_dqzone, dqp);
+	atomic_dec(&xfs_Gqm->qm_totaldquots);
+}
+
+/*
+ * This is what a 'fresh' dquot inside a dquot chunk looks like on disk.
+ */
+STATIC void
+xfs_qm_dqinit_core(
+	xfs_dqid_t	id,
+	uint		type,
+	xfs_dqblk_t	*d)
+{
+	/*
+	 * Caller has zero'd the entire dquot 'chunk' already.
+	 */
+	INT_SET(d->dd_diskdq.d_magic, ARCH_CONVERT, XFS_DQUOT_MAGIC);
+	INT_SET(d->dd_diskdq.d_version, ARCH_CONVERT, XFS_DQUOT_VERSION);
+	INT_SET(d->dd_diskdq.d_id, ARCH_CONVERT, id);
+	INT_SET(d->dd_diskdq.d_flags, ARCH_CONVERT, type);
+}
+
+
+#ifdef XFS_DQUOT_TRACE
+/*
+ * Dquot tracing for debugging.
+ */
+/* ARGSUSED */
+void
+__xfs_dqtrace_entry(
+	xfs_dquot_t	*dqp,
+	char		*func,
+	void		*retaddr,
+	xfs_inode_t	*ip)
+{
+	xfs_dquot_t	*udqp = NULL;
+	xfs_ino_t	ino = 0;
+
+	ASSERT(dqp->q_trace);
+	if (ip) {
+		ino = ip->i_ino;
+		udqp = ip->i_udquot;
+	}
+	ktrace_enter(dqp->q_trace,
+		     (void *)(__psint_t)DQUOT_KTRACE_ENTRY,
+		     (void *)func,
+		     (void *)(__psint_t)dqp->q_nrefs,
+		     (void *)(__psint_t)dqp->dq_flags,
+		     (void *)(__psint_t)dqp->q_res_bcount,
+		     (void *)(__psint_t)INT_GET(dqp->q_core.d_bcount,
+						ARCH_CONVERT),
+		     (void *)(__psint_t)INT_GET(dqp->q_core.d_icount,
+						ARCH_CONVERT),
+		     (void *)(__psint_t)INT_GET(dqp->q_core.d_blk_hardlimit,
+						ARCH_CONVERT),
+		     (void *)(__psint_t)INT_GET(dqp->q_core.d_blk_softlimit,
+						ARCH_CONVERT),
+		     (void *)(__psint_t)INT_GET(dqp->q_core.d_ino_hardlimit,
+						ARCH_CONVERT),
+		     (void *)(__psint_t)INT_GET(dqp->q_core.d_ino_softlimit,
+						ARCH_CONVERT),
+		     (void *)(__psint_t)INT_GET(dqp->q_core.d_id, ARCH_CONVERT),
+		     (void *)(__psint_t)current_pid(),
+		     (void *)(__psint_t)ino,
+		     (void *)(__psint_t)retaddr,
+		     (void *)(__psint_t)udqp);
+	return;
+}
+#endif
+
+
+/*
+ * If default limits are in force, push them into the dquot now.
+ * We overwrite the dquot limits only if they are zero and this
+ * is not the root dquot.
+ */
+void
+xfs_qm_adjust_dqlimits(
+	xfs_mount_t		*mp,
+	xfs_disk_dquot_t	*d)
+{
+	xfs_quotainfo_t		*q = mp->m_quotainfo;
+
+	ASSERT(!INT_ISZERO(d->d_id, ARCH_CONVERT));
+
+	if (q->qi_bsoftlimit && INT_ISZERO(d->d_blk_softlimit, ARCH_CONVERT))
+		INT_SET(d->d_blk_softlimit, ARCH_CONVERT, q->qi_bsoftlimit);
+	if (q->qi_bhardlimit && INT_ISZERO(d->d_blk_hardlimit, ARCH_CONVERT))
+		INT_SET(d->d_blk_hardlimit, ARCH_CONVERT, q->qi_bhardlimit);
+	if (q->qi_isoftlimit && INT_ISZERO(d->d_ino_softlimit, ARCH_CONVERT))
+		INT_SET(d->d_ino_softlimit, ARCH_CONVERT, q->qi_isoftlimit);
+	if (q->qi_ihardlimit && INT_ISZERO(d->d_ino_hardlimit, ARCH_CONVERT))
+		INT_SET(d->d_ino_hardlimit, ARCH_CONVERT, q->qi_ihardlimit);
+	if (q->qi_rtbsoftlimit &&
+	    INT_ISZERO(d->d_rtb_softlimit, ARCH_CONVERT))
+		INT_SET(d->d_rtb_softlimit, ARCH_CONVERT, q->qi_rtbsoftlimit);
+	if (q->qi_rtbhardlimit &&
+	    INT_ISZERO(d->d_rtb_hardlimit, ARCH_CONVERT))
+		INT_SET(d->d_rtb_hardlimit, ARCH_CONVERT, q->qi_rtbhardlimit);
+}
+
+/*
+ * Check the limits and timers of a dquot and start or reset timers
+ * if necessary.
+ * This gets called even when quota enforcement is OFF, which makes our
+ * life a little less complicated. (We just don't reject any quota
+ * reservations in that case, when enforcement is off).
+ * We also return 0 as the values of the timers in Q_GETQUOTA calls, when
+ * enforcement's off.
+ * In contrast, warnings are a little different in that they don't
+ * 'automatically' get started when limits get exceeded.
+ */
+void
+xfs_qm_adjust_dqtimers(
+	xfs_mount_t		*mp,
+	xfs_disk_dquot_t	*d)
+{
+	ASSERT(!INT_ISZERO(d->d_id, ARCH_CONVERT));
+
+#ifdef QUOTADEBUG
+	if (INT_GET(d->d_blk_hardlimit, ARCH_CONVERT))
+		ASSERT(INT_GET(d->d_blk_softlimit, ARCH_CONVERT) <=
+			INT_GET(d->d_blk_hardlimit, ARCH_CONVERT));
+	if (INT_GET(d->d_ino_hardlimit, ARCH_CONVERT))
+		ASSERT(INT_GET(d->d_ino_softlimit, ARCH_CONVERT) <=
+			INT_GET(d->d_ino_hardlimit, ARCH_CONVERT));
+	if (INT_GET(d->d_rtb_hardlimit, ARCH_CONVERT))
+		ASSERT(INT_GET(d->d_rtb_softlimit, ARCH_CONVERT) <=
+			INT_GET(d->d_rtb_hardlimit, ARCH_CONVERT));
+#endif
+	if (INT_ISZERO(d->d_btimer, ARCH_CONVERT)) {
+		if ((INT_GET(d->d_blk_softlimit, ARCH_CONVERT) &&
+		    (INT_GET(d->d_bcount, ARCH_CONVERT) >=
+				INT_GET(d->d_blk_softlimit, ARCH_CONVERT))) ||
+		    (INT_GET(d->d_blk_hardlimit, ARCH_CONVERT) &&
+		    (INT_GET(d->d_bcount, ARCH_CONVERT) >=
+				INT_GET(d->d_blk_hardlimit, ARCH_CONVERT)))) {
+			INT_SET(d->d_btimer, ARCH_CONVERT,
+				get_seconds() + XFS_QI_BTIMELIMIT(mp));
+		}
+	} else {
+		if ((INT_ISZERO(d->d_blk_softlimit, ARCH_CONVERT) ||
+		    (INT_GET(d->d_bcount, ARCH_CONVERT) <
+				INT_GET(d->d_blk_softlimit, ARCH_CONVERT))) &&
+		    (INT_ISZERO(d->d_blk_hardlimit, ARCH_CONVERT) ||
+		    (INT_GET(d->d_bcount, ARCH_CONVERT) <
+				INT_GET(d->d_blk_hardlimit, ARCH_CONVERT)))) {
+			INT_ZERO(d->d_btimer, ARCH_CONVERT);
+		}
+	}
+
+	if (INT_ISZERO(d->d_itimer, ARCH_CONVERT)) {
+		if ((INT_GET(d->d_ino_softlimit, ARCH_CONVERT) &&
+		    (INT_GET(d->d_icount, ARCH_CONVERT) >=
+				INT_GET(d->d_ino_softlimit, ARCH_CONVERT))) ||
+		    (INT_GET(d->d_ino_hardlimit, ARCH_CONVERT) &&
+		    (INT_GET(d->d_icount, ARCH_CONVERT) >=
+				INT_GET(d->d_ino_hardlimit, ARCH_CONVERT)))) {
+			INT_SET(d->d_itimer, ARCH_CONVERT,
+				get_seconds() + XFS_QI_ITIMELIMIT(mp));
+		}
+	} else {
+		if ((INT_ISZERO(d->d_ino_softlimit, ARCH_CONVERT) ||
+		    (INT_GET(d->d_icount, ARCH_CONVERT) <
+				INT_GET(d->d_ino_softlimit, ARCH_CONVERT)))  &&
+		    (INT_ISZERO(d->d_ino_hardlimit, ARCH_CONVERT) ||
+		    (INT_GET(d->d_icount, ARCH_CONVERT) <
+				INT_GET(d->d_ino_hardlimit, ARCH_CONVERT)))) {
+			INT_ZERO(d->d_itimer, ARCH_CONVERT);
+		}
+	}
+
+	if (INT_ISZERO(d->d_rtbtimer, ARCH_CONVERT)) {
+		if ((INT_GET(d->d_rtb_softlimit, ARCH_CONVERT) &&
+		    (INT_GET(d->d_rtbcount, ARCH_CONVERT) >=
+				INT_GET(d->d_rtb_softlimit, ARCH_CONVERT))) ||
+		    (INT_GET(d->d_rtb_hardlimit, ARCH_CONVERT) &&
+		    (INT_GET(d->d_rtbcount, ARCH_CONVERT) >=
+				INT_GET(d->d_rtb_hardlimit, ARCH_CONVERT)))) {
+			INT_SET(d->d_rtbtimer, ARCH_CONVERT,
+				get_seconds() + XFS_QI_RTBTIMELIMIT(mp));
+		}
+	} else {
+		if ((INT_ISZERO(d->d_rtb_softlimit, ARCH_CONVERT) ||
+		    (INT_GET(d->d_rtbcount, ARCH_CONVERT) <
+				INT_GET(d->d_rtb_softlimit, ARCH_CONVERT))) &&
+		    (INT_ISZERO(d->d_rtb_hardlimit, ARCH_CONVERT) ||
+		    (INT_GET(d->d_rtbcount, ARCH_CONVERT) <
+				INT_GET(d->d_rtb_hardlimit, ARCH_CONVERT)))) {
+			INT_ZERO(d->d_rtbtimer, ARCH_CONVERT);
+		}
+	}
+}
+
+/*
+ * Increment or reset warnings of a given dquot.
+ */
+int
+xfs_qm_dqwarn(
+	xfs_disk_dquot_t	*d,
+	uint			flags)
+{
+	int	warned;
+
+	/*
+	 * root's limits are not real limits.
+	 */
+	if (INT_ISZERO(d->d_id, ARCH_CONVERT))
+		return (0);
+
+	warned = 0;
+	if (INT_GET(d->d_blk_softlimit, ARCH_CONVERT) &&
+	    (INT_GET(d->d_bcount, ARCH_CONVERT) >=
+	     INT_GET(d->d_blk_softlimit, ARCH_CONVERT))) {
+		if (flags & XFS_QMOPT_DOWARN) {
+			INT_MOD(d->d_bwarns, ARCH_CONVERT, +1);
+			warned++;
+		}
+	} else {
+		if (INT_ISZERO(d->d_blk_softlimit, ARCH_CONVERT) ||
+		    (INT_GET(d->d_bcount, ARCH_CONVERT) <
+		     INT_GET(d->d_blk_softlimit, ARCH_CONVERT))) {
+			INT_ZERO(d->d_bwarns, ARCH_CONVERT);
+		}
+	}
+
+	if (INT_GET(d->d_ino_softlimit, ARCH_CONVERT) > 0 &&
+	    (INT_GET(d->d_icount, ARCH_CONVERT) >=
+	     INT_GET(d->d_ino_softlimit, ARCH_CONVERT))) {
+		if (flags & XFS_QMOPT_DOWARN) {
+			INT_MOD(d->d_iwarns, ARCH_CONVERT, +1);
+			warned++;
+		}
+	} else {
+		if ((INT_ISZERO(d->d_ino_softlimit, ARCH_CONVERT)) ||
+		    (INT_GET(d->d_icount, ARCH_CONVERT) <
+		     INT_GET(d->d_ino_softlimit, ARCH_CONVERT))) {
+			INT_ZERO(d->d_iwarns, ARCH_CONVERT);
+		}
+	}
+#ifdef QUOTADEBUG
+	if (INT_GET(d->d_iwarns, ARCH_CONVERT))
+		cmn_err(CE_DEBUG,
+			"--------@@Inode warnings running : %Lu >= %Lu",
+			INT_GET(d->d_icount, ARCH_CONVERT),
+			INT_GET(d->d_ino_softlimit, ARCH_CONVERT));
+	if (INT_GET(d->d_bwarns, ARCH_CONVERT))
+		cmn_err(CE_DEBUG,
+			"--------@@Blks warnings running : %Lu >= %Lu",
+			INT_GET(d->d_bcount, ARCH_CONVERT),
+			INT_GET(d->d_blk_softlimit, ARCH_CONVERT));
+#endif
+	return (warned);
+}
+
+
+/*
+ * initialize a buffer full of dquots and log the whole thing
+ */
+STATIC void
+xfs_qm_init_dquot_blk(
+	xfs_trans_t	*tp,
+	xfs_mount_t	*mp,
+	xfs_dqid_t	id,
+	uint		type,
+	xfs_buf_t	*bp)
+{
+	xfs_dqblk_t	*d;
+	int		curid, i;
+
+	ASSERT(tp);
+	ASSERT(XFS_BUF_ISBUSY(bp));
+	ASSERT(XFS_BUF_VALUSEMA(bp) <= 0);
+
+	d = (xfs_dqblk_t *)XFS_BUF_PTR(bp);
+
+	/*
+	 * ID of the first dquot in the block - id's are zero based.
+	 */
+	curid = id - (id % XFS_QM_DQPERBLK(mp));
+	ASSERT(curid >= 0);
+	memset(d, 0, BBTOB(XFS_QI_DQCHUNKLEN(mp)));
+	for (i = 0; i < XFS_QM_DQPERBLK(mp); i++, d++, curid++)
+		xfs_qm_dqinit_core(curid, type, d);
+	xfs_trans_dquot_buf(tp, bp,
+			    type & XFS_DQ_USER ?
+			    XFS_BLI_UDQUOT_BUF :
+			    XFS_BLI_GDQUOT_BUF);
+	xfs_trans_log_buf(tp, bp, 0, BBTOB(XFS_QI_DQCHUNKLEN(mp)) - 1);
+}
+
+
+
+/*
+ * Allocate a block and fill it with dquots.
+ * This is called when the bmapi finds a hole.
+ */
+STATIC int
+xfs_qm_dqalloc(
+	xfs_trans_t	*tp,
+	xfs_mount_t	*mp,
+	xfs_dquot_t	*dqp,
+	xfs_inode_t	*quotip,
+	xfs_fileoff_t	offset_fsb,
+	xfs_buf_t	**O_bpp)
+{
+	xfs_fsblock_t	firstblock;
+	xfs_bmap_free_t flist;
+	xfs_bmbt_irec_t map;
+	int		nmaps, error, committed;
+	xfs_buf_t	*bp;
+
+	ASSERT(tp != NULL);
+	xfs_dqtrace_entry(dqp, "DQALLOC");
+
+	/*
+	 * Initialize the bmap freelist prior to calling bmapi code.
+	 */
+	XFS_BMAP_INIT(&flist, &firstblock);
+	xfs_ilock(quotip, XFS_ILOCK_EXCL);
+	/*
+	 * Return if this type of quotas is turned off while we didn't
+	 * have an inode lock
+	 */
+	if (XFS_IS_THIS_QUOTA_OFF(dqp)) {
+		xfs_iunlock(quotip, XFS_ILOCK_EXCL);
+		return (ESRCH);
+	}
+
+	/*
+	 * xfs_trans_commit normally decrements the vnode ref count
+	 * when it unlocks the inode. Since we want to keep the quota
+	 * inode around, we bump the vnode ref count now.
+	 */
+	VN_HOLD(XFS_ITOV(quotip));
+
+	xfs_trans_ijoin(tp, quotip, XFS_ILOCK_EXCL);
+	nmaps = 1;
+	if ((error = xfs_bmapi(tp, quotip,
+			      offset_fsb, XFS_DQUOT_CLUSTER_SIZE_FSB,
+			      XFS_BMAPI_METADATA | XFS_BMAPI_WRITE,
+			      &firstblock,
+			      XFS_QM_DQALLOC_SPACE_RES(mp),
+			      &map, &nmaps, &flist))) {
+		goto error0;
+	}
+	ASSERT(map.br_blockcount == XFS_DQUOT_CLUSTER_SIZE_FSB);
+	ASSERT(nmaps == 1);
+	ASSERT((map.br_startblock != DELAYSTARTBLOCK) &&
+	       (map.br_startblock != HOLESTARTBLOCK));
+
+	/*
+	 * Keep track of the blkno to save a lookup later
+	 */
+	dqp->q_blkno = XFS_FSB_TO_DADDR(mp, map.br_startblock);
+
+	/* now we can just get the buffer (there's nothing to read yet) */
+	bp = xfs_trans_get_buf(tp, mp->m_ddev_targp,
+			       dqp->q_blkno,
+			       XFS_QI_DQCHUNKLEN(mp),
+			       0);
+	if (!bp || (error = XFS_BUF_GETERROR(bp)))
+		goto error1;
+	/*
+	 * Make a chunk of dquots out of this buffer and log
+	 * the entire thing.
+	 */
+	xfs_qm_init_dquot_blk(tp, mp, INT_GET(dqp->q_core.d_id, ARCH_CONVERT),
+			      dqp->dq_flags & (XFS_DQ_USER|XFS_DQ_GROUP),
+			      bp);
+
+	if ((error = xfs_bmap_finish(&tp, &flist, firstblock, &committed))) {
+		goto error1;
+	}
+
+	*O_bpp = bp;
+	return 0;
+
+      error1:
+	xfs_bmap_cancel(&flist);
+      error0:
+	xfs_iunlock(quotip, XFS_ILOCK_EXCL);
+
+	return (error);
+}
+
+/*
+ * Maps a dquot to the buffer containing its on-disk version.
+ * This returns a ptr to the buffer containing the on-disk dquot
+ * in the bpp param, and a ptr to the on-disk dquot within that buffer
+ */
+STATIC int
+xfs_qm_dqtobp(
+	xfs_trans_t		*tp,
+	xfs_dquot_t		*dqp,
+	xfs_disk_dquot_t	**O_ddpp,
+	xfs_buf_t		**O_bpp,
+	uint			flags)
+{
+	xfs_bmbt_irec_t map;
+	int		nmaps, error;
+	xfs_buf_t	*bp;
+	xfs_inode_t	*quotip;
+	xfs_mount_t	*mp;
+	xfs_disk_dquot_t *ddq;
+	xfs_dqid_t	id;
+	boolean_t	newdquot;
+
+	mp = dqp->q_mount;
+	id = INT_GET(dqp->q_core.d_id, ARCH_CONVERT);
+	nmaps = 1;
+	newdquot = B_FALSE;
+
+	/*
+	 * If we don't know where the dquot lives, find out.
+	 */
+	if (dqp->q_blkno == (xfs_daddr_t) 0) {
+		/* We use the id as an index */
+		dqp->q_fileoffset = (xfs_fileoff_t) ((uint)id /
+						     XFS_QM_DQPERBLK(mp));
+		nmaps = 1;
+		quotip = XFS_DQ_TO_QIP(dqp);
+		xfs_ilock(quotip, XFS_ILOCK_SHARED);
+		/*
+		 * Return if this type of quotas is turned off while we didn't
+		 * have an inode lock
+		 */
+		if (XFS_IS_THIS_QUOTA_OFF(dqp)) {
+			xfs_iunlock(quotip, XFS_ILOCK_SHARED);
+			return (ESRCH);
+		}
+		/*
+		 * Find the block map; no allocations yet
+		 */
+		error = xfs_bmapi(NULL, quotip, dqp->q_fileoffset,
+				  XFS_DQUOT_CLUSTER_SIZE_FSB,
+				  XFS_BMAPI_METADATA,
+				  NULL, 0, &map, &nmaps, NULL);
+
+		xfs_iunlock(quotip, XFS_ILOCK_SHARED);
+		if (error)
+			return (error);
+		ASSERT(nmaps == 1);
+		ASSERT(map.br_blockcount == 1);
+
+		/*
+		 * offset of dquot in the (fixed sized) dquot chunk.
+		 */
+		dqp->q_bufoffset = (id % XFS_QM_DQPERBLK(mp)) *
+			sizeof(xfs_dqblk_t);
+		if (map.br_startblock == HOLESTARTBLOCK) {
+			/*
+			 * We don't allocate unless we're asked to
+			 */
+			if (!(flags & XFS_QMOPT_DQALLOC))
+				return (ENOENT);
+
+			ASSERT(tp);
+			if ((error = xfs_qm_dqalloc(tp, mp, dqp, quotip,
+						dqp->q_fileoffset, &bp)))
+				return (error);
+			newdquot = B_TRUE;
+		} else {
+			/*
+			 * store the blkno etc so that we don't have to do the
+			 * mapping all the time
+			 */
+			dqp->q_blkno = XFS_FSB_TO_DADDR(mp, map.br_startblock);
+		}
+	}
+	ASSERT(dqp->q_blkno != DELAYSTARTBLOCK);
+	ASSERT(dqp->q_blkno != HOLESTARTBLOCK);
+
+	/*
+	 * Read in the buffer, unless we've just done the allocation
+	 * (in which case we already have the buf).
+	 */
+	if (! newdquot) {
+		xfs_dqtrace_entry(dqp, "DQTOBP READBUF");
+		if ((error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp,
+					       dqp->q_blkno,
+					       XFS_QI_DQCHUNKLEN(mp),
+					       0, &bp))) {
+			return (error);
+		}
+		if (error || !bp)
+			return XFS_ERROR(error);
+	}
+	ASSERT(XFS_BUF_ISBUSY(bp));
+	ASSERT(XFS_BUF_VALUSEMA(bp) <= 0);
+
+	/*
+	 * calculate the location of the dquot inside the buffer.
+	 */
+	ddq = (xfs_disk_dquot_t *)((char *)XFS_BUF_PTR(bp) + dqp->q_bufoffset);
+
+	/*
+	 * A simple sanity check in case we got a corrupted dquot...
+	 */
+	if (xfs_qm_dqcheck(ddq, id,
+			   dqp->dq_flags & (XFS_DQ_USER|XFS_DQ_GROUP),
+			   flags & (XFS_QMOPT_DQREPAIR|XFS_QMOPT_DOWARN),
+			   "dqtobp")) {
+		if (!(flags & XFS_QMOPT_DQREPAIR)) {
+			xfs_trans_brelse(tp, bp);
+			return XFS_ERROR(EIO);
+		}
+		XFS_BUF_BUSY(bp); /* We dirtied this */
+	}
+
+	*O_bpp = bp;
+	*O_ddpp = ddq;
+
+	return (0);
+}
+
+
+/*
+ * Read in the ondisk dquot using dqtobp() then copy it to an incore version,
+ * and release the buffer immediately.
+ *
+ */
+/* ARGSUSED */
+STATIC int
+xfs_qm_dqread(
+	xfs_trans_t	*tp,
+	xfs_dqid_t	id,
+	xfs_dquot_t	*dqp,	/* dquot to get filled in */
+	uint		flags)
+{
+	xfs_disk_dquot_t *ddqp;
+	xfs_buf_t	 *bp;
+	int		 error;
+
+	/*
+	 * get a pointer to the on-disk dquot and the buffer containing it
+	 * dqp already knows its own type (GROUP/USER).
+	 */
+	xfs_dqtrace_entry(dqp, "DQREAD");
+	if ((error = xfs_qm_dqtobp(tp, dqp, &ddqp, &bp, flags))) {
+		return (error);
+	}
+
+	/* copy everything from disk dquot to the incore dquot */
+	memcpy(&dqp->q_core, ddqp, sizeof(xfs_disk_dquot_t));
+	ASSERT(INT_GET(dqp->q_core.d_id, ARCH_CONVERT) == id);
+	xfs_qm_dquot_logitem_init(dqp);
+
+	/*
+	 * Reservation counters are defined as reservation plus current usage
+	 * to avoid having to add everytime.
+	 */
+	dqp->q_res_bcount = INT_GET(ddqp->d_bcount, ARCH_CONVERT);
+	dqp->q_res_icount = INT_GET(ddqp->d_icount, ARCH_CONVERT);
+	dqp->q_res_rtbcount = INT_GET(ddqp->d_rtbcount, ARCH_CONVERT);
+
+	/* Mark the buf so that this will stay incore a little longer */
+	XFS_BUF_SET_VTYPE_REF(bp, B_FS_DQUOT, XFS_DQUOT_REF);
+
+	/*
+	 * We got the buffer with a xfs_trans_read_buf() (in dqtobp())
+	 * So we need to release with xfs_trans_brelse().
+	 * The strategy here is identical to that of inodes; we lock
+	 * the dquot in xfs_qm_dqget() before making it accessible to
+	 * others. This is because dquots, like inodes, need a good level of
+	 * concurrency, and we don't want to take locks on the entire buffers
+	 * for dquot accesses.
+	 * Note also that the dquot buffer may even be dirty at this point, if
+	 * this particular dquot was repaired. We still aren't afraid to
+	 * brelse it because we have the changes incore.
+	 */
+	ASSERT(XFS_BUF_ISBUSY(bp));
+	ASSERT(XFS_BUF_VALUSEMA(bp) <= 0);
+	xfs_trans_brelse(tp, bp);
+
+	return (error);
+}
+
+
+/*
+ * allocate an incore dquot from the kernel heap,
+ * and fill its core with quota information kept on disk.
+ * If XFS_QMOPT_DQALLOC is set, it'll allocate a dquot on disk
+ * if it wasn't already allocated.
+ */
+STATIC int
+xfs_qm_idtodq(
+	xfs_mount_t	*mp,
+	xfs_dqid_t	id,	 /* gid or uid, depending on type */
+	uint		type,	 /* UDQUOT or GDQUOT */
+	uint		flags,	 /* DQALLOC, DQREPAIR */
+	xfs_dquot_t	**O_dqpp)/* OUT : incore dquot, not locked */
+{
+	xfs_dquot_t	*dqp;
+	int		error;
+	xfs_trans_t	*tp;
+	int		cancelflags=0;
+
+	dqp = xfs_qm_dqinit(mp, id, type);
+	tp = NULL;
+	if (flags & XFS_QMOPT_DQALLOC) {
+		tp = xfs_trans_alloc(mp, XFS_TRANS_QM_DQALLOC);
+		if ((error = xfs_trans_reserve(tp,
+				       XFS_QM_DQALLOC_SPACE_RES(mp),
+				       XFS_WRITE_LOG_RES(mp) +
+					      BBTOB(XFS_QI_DQCHUNKLEN(mp)) - 1 +
+					      128,
+				       0,
+				       XFS_TRANS_PERM_LOG_RES,
+				       XFS_WRITE_LOG_COUNT))) {
+			cancelflags = 0;
+			goto error0;
+		}
+		cancelflags = XFS_TRANS_RELEASE_LOG_RES;
+	}
+
+	/*
+	 * Read it from disk; xfs_dqread() takes care of
+	 * all the necessary initialization of dquot's fields (locks, etc)
+	 */
+	if ((error = xfs_qm_dqread(tp, id, dqp, flags))) {
+		/*
+		 * This can happen if quotas got turned off (ESRCH),
+		 * or if the dquot didn't exist on disk and we ask to
+		 * allocate (ENOENT).
+		 */
+		xfs_dqtrace_entry(dqp, "DQREAD FAIL");
+		cancelflags |= XFS_TRANS_ABORT;
+		goto error0;
+	}
+	if (tp) {
+		if ((error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES,
+					     NULL)))
+			goto error1;
+	}
+
+	*O_dqpp = dqp;
+	return (0);
+
+ error0:
+	ASSERT(error);
+	if (tp)
+		xfs_trans_cancel(tp, cancelflags);
+ error1:
+	xfs_qm_dqdestroy(dqp);
+	*O_dqpp = NULL;
+	return (error);
+}
+
+/*
+ * Lookup a dquot in the incore dquot hashtable. We keep two separate
+ * hashtables for user and group dquots; and, these are global tables
+ * inside the XQM, not per-filesystem tables.
+ * The hash chain must be locked by caller, and it is left locked
+ * on return. Returning dquot is locked.
+ */
+STATIC int
+xfs_qm_dqlookup(
+	xfs_mount_t		*mp,
+	xfs_dqid_t		id,
+	xfs_dqhash_t		*qh,
+	xfs_dquot_t		**O_dqpp)
+{
+	xfs_dquot_t		*dqp;
+	uint			flist_locked;
+	xfs_dquot_t		*d;
+
+	ASSERT(XFS_DQ_IS_HASH_LOCKED(qh));
+
+	flist_locked = B_FALSE;
+
+	/*
+	 * Traverse the hashchain looking for a match
+	 */
+	for (dqp = qh->qh_next; dqp != NULL; dqp = dqp->HL_NEXT) {
+		/*
+		 * We already have the hashlock. We don't need the
+		 * dqlock to look at the id field of the dquot, since the
+		 * id can't be modified without the hashlock anyway.
+		 */
+		if (INT_GET(dqp->q_core.d_id, ARCH_CONVERT) == id && dqp->q_mount == mp) {
+			xfs_dqtrace_entry(dqp, "DQFOUND BY LOOKUP");
+			/*
+			 * All in core dquots must be on the dqlist of mp
+			 */
+			ASSERT(dqp->MPL_PREVP != NULL);
+
+			xfs_dqlock(dqp);
+			if (dqp->q_nrefs == 0) {
+				ASSERT (XFS_DQ_IS_ON_FREELIST(dqp));
+				if (! xfs_qm_freelist_lock_nowait(xfs_Gqm)) {
+					xfs_dqtrace_entry(dqp, "DQLOOKUP: WANT");
+
+					/*
+					 * We may have raced with dqreclaim_one()
+					 * (and lost). So, flag that we don't
+					 * want the dquot to be reclaimed.
+					 */
+					dqp->dq_flags |= XFS_DQ_WANT;
+					xfs_dqunlock(dqp);
+					xfs_qm_freelist_lock(xfs_Gqm);
+					xfs_dqlock(dqp);
+					dqp->dq_flags &= ~(XFS_DQ_WANT);
+				}
+				flist_locked = B_TRUE;
+			}
+
+			/*
+			 * id couldn't have changed; we had the hashlock all
+			 * along
+			 */
+			ASSERT(INT_GET(dqp->q_core.d_id, ARCH_CONVERT) == id);
+
+			if (flist_locked) {
+				if (dqp->q_nrefs != 0) {
+					xfs_qm_freelist_unlock(xfs_Gqm);
+					flist_locked = B_FALSE;
+				} else {
+					/*
+					 * take it off the freelist
+					 */
+					xfs_dqtrace_entry(dqp,
+							"DQLOOKUP: TAKEOFF FL");
+					XQM_FREELIST_REMOVE(dqp);
+					/* xfs_qm_freelist_print(&(xfs_Gqm->
+							qm_dqfreelist),
+							"after removal"); */
+				}
+			}
+
+			/*
+			 * grab a reference
+			 */
+			XFS_DQHOLD(dqp);
+
+			if (flist_locked)
+				xfs_qm_freelist_unlock(xfs_Gqm);
+			/*
+			 * move the dquot to the front of the hashchain
+			 */
+			ASSERT(XFS_DQ_IS_HASH_LOCKED(qh));
+			if (dqp->HL_PREVP != &qh->qh_next) {
+				xfs_dqtrace_entry(dqp,
+						  "DQLOOKUP: HASH MOVETOFRONT");
+				if ((d = dqp->HL_NEXT))
+					d->HL_PREVP = dqp->HL_PREVP;
+				*(dqp->HL_PREVP) = d;
+				d = qh->qh_next;
+				d->HL_PREVP = &dqp->HL_NEXT;
+				dqp->HL_NEXT = d;
+				dqp->HL_PREVP = &qh->qh_next;
+				qh->qh_next = dqp;
+			}
+			xfs_dqtrace_entry(dqp, "LOOKUP END");
+			*O_dqpp = dqp;
+			ASSERT(XFS_DQ_IS_HASH_LOCKED(qh));
+			return (0);
+		}
+	}
+
+	*O_dqpp = NULL;
+	ASSERT(XFS_DQ_IS_HASH_LOCKED(qh));
+	return (1);
+}
+
+/*
+ * Given the file system, inode OR id, and type (UDQUOT/GDQUOT), return a
+ * a locked dquot, doing an allocation (if requested) as needed.
+ * When both an inode and an id are given, the inode's id takes precedence.
+ * That is, if the id changes while we don't hold the ilock inside this
+ * function, the new dquot is returned, not necessarily the one requested
+ * in the id argument.
+ */
+int
+xfs_qm_dqget(
+	xfs_mount_t	*mp,
+	xfs_inode_t	*ip,	  /* locked inode (optional) */
+	xfs_dqid_t	id,	  /* gid or uid, depending on type */
+	uint		type,	  /* UDQUOT or GDQUOT */
+	uint		flags,	  /* DQALLOC, DQSUSER, DQREPAIR, DOWARN */
+	xfs_dquot_t	**O_dqpp) /* OUT : locked incore dquot */
+{
+	xfs_dquot_t	*dqp;
+	xfs_dqhash_t	*h;
+	uint		version;
+	int		error;
+
+	ASSERT(XFS_IS_QUOTA_RUNNING(mp));
+	if ((! XFS_IS_UQUOTA_ON(mp) && type == XFS_DQ_USER) ||
+	    (! XFS_IS_GQUOTA_ON(mp) && type == XFS_DQ_GROUP)) {
+		return (ESRCH);
+	}
+	h = XFS_DQ_HASH(mp, id, type);
+
+#ifdef DEBUG
+	if (xfs_do_dqerror) {
+		if ((xfs_dqerror_target == mp->m_ddev_targp) &&
+		    (xfs_dqreq_num++ % xfs_dqerror_mod) == 0) {
+			cmn_err(CE_DEBUG, "Returning error in dqget");
+			return (EIO);
+		}
+	}
+#endif
+
+ again:
+
+#ifdef DEBUG
+	ASSERT(type == XFS_DQ_USER || type == XFS_DQ_GROUP);
+	if (ip) {
+		ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
+		if (type == XFS_DQ_USER)
+			ASSERT(ip->i_udquot == NULL);
+		else
+			ASSERT(ip->i_gdquot == NULL);
+	}
+#endif
+	XFS_DQ_HASH_LOCK(h);
+
+	/*
+	 * Look in the cache (hashtable).
+	 * The chain is kept locked during lookup.
+	 */
+	if (xfs_qm_dqlookup(mp, id, h, O_dqpp) == 0) {
+		XQM_STATS_INC(xqmstats.xs_qm_dqcachehits);
+		/*
+		 * The dquot was found, moved to the front of the chain,
+		 * taken off the freelist if it was on it, and locked
+		 * at this point. Just unlock the hashchain and return.
+		 */
+		ASSERT(*O_dqpp);
+		ASSERT(XFS_DQ_IS_LOCKED(*O_dqpp));
+		XFS_DQ_HASH_UNLOCK(h);
+		xfs_dqtrace_entry(*O_dqpp, "DQGET DONE (FROM CACHE)");
+		return (0);	/* success */
+	}
+	XQM_STATS_INC(xqmstats.xs_qm_dqcachemisses);
+
+	/*
+	 * Dquot cache miss. We don't want to keep the inode lock across
+	 * a (potential) disk read. Also we don't want to deal with the lock
+	 * ordering between quotainode and this inode. OTOH, dropping the inode
+	 * lock here means dealing with a chown that can happen before
+	 * we re-acquire the lock.
+	 */
+	if (ip)
+		xfs_iunlock(ip, XFS_ILOCK_EXCL);
+	/*
+	 * Save the hashchain version stamp, and unlock the chain, so that
+	 * we don't keep the lock across a disk read
+	 */
+	version = h->qh_version;
+	XFS_DQ_HASH_UNLOCK(h);
+
+	/*
+	 * Allocate the dquot on the kernel heap, and read the ondisk
+	 * portion off the disk. Also, do all the necessary initialization
+	 * This can return ENOENT if dquot didn't exist on disk and we didn't
+	 * ask it to allocate; ESRCH if quotas got turned off suddenly.
+	 */
+	if ((error = xfs_qm_idtodq(mp, id, type,
+				  flags & (XFS_QMOPT_DQALLOC|XFS_QMOPT_DQREPAIR|
+					   XFS_QMOPT_DOWARN),
+				  &dqp))) {
+		if (ip)
+			xfs_ilock(ip, XFS_ILOCK_EXCL);
+		return (error);
+	}
+
+	/*
+	 * See if this is mount code calling to look at the overall quota limits
+	 * which are stored in the id == 0 user or group's dquot.
+	 * Since we may not have done a quotacheck by this point, just return
+	 * the dquot without attaching it to any hashtables, lists, etc, or even
+	 * taking a reference.
+	 * The caller must dqdestroy this once done.
+	 */
+	if (flags & XFS_QMOPT_DQSUSER) {
+		ASSERT(id == 0);
+		ASSERT(! ip);
+		goto dqret;
+	}
+
+	/*
+	 * Dquot lock comes after hashlock in the lock ordering
+	 */
+	if (ip) {
+		xfs_ilock(ip, XFS_ILOCK_EXCL);
+		if (! XFS_IS_DQTYPE_ON(mp, type)) {
+			/* inode stays locked on return */
+			xfs_qm_dqdestroy(dqp);
+			return XFS_ERROR(ESRCH);
+		}
+		/*
+		 * A dquot could be attached to this inode by now, since
+		 * we had dropped the ilock.
+		 */
+		if (type == XFS_DQ_USER) {
+			if (ip->i_udquot) {
+				xfs_qm_dqdestroy(dqp);
+				dqp = ip->i_udquot;
+				xfs_dqlock(dqp);
+				goto dqret;
+			}
+		} else {
+			if (ip->i_gdquot) {
+				xfs_qm_dqdestroy(dqp);
+				dqp = ip->i_gdquot;
+				xfs_dqlock(dqp);
+				goto dqret;
+			}
+		}
+	}
+
+	/*
+	 * Hashlock comes after ilock in lock order
+	 */
+	XFS_DQ_HASH_LOCK(h);
+	if (version != h->qh_version) {
+		xfs_dquot_t *tmpdqp;
+		/*
+		 * Now, see if somebody else put the dquot in the
+		 * hashtable before us. This can happen because we didn't
+		 * keep the hashchain lock. We don't have to worry about
+		 * lock order between the two dquots here since dqp isn't
+		 * on any findable lists yet.
+		 */
+		if (xfs_qm_dqlookup(mp, id, h, &tmpdqp) == 0) {
+			/*
+			 * Duplicate found. Just throw away the new dquot
+			 * and start over.
+			 */
+			xfs_qm_dqput(tmpdqp);
+			XFS_DQ_HASH_UNLOCK(h);
+			xfs_qm_dqdestroy(dqp);
+			XQM_STATS_INC(xqmstats.xs_qm_dquot_dups);
+			goto again;
+		}
+	}
+
+	/*
+	 * Put the dquot at the beginning of the hash-chain and mp's list
+	 * LOCK ORDER: hashlock, freelistlock, mplistlock, udqlock, gdqlock ..
+	 */
+	ASSERT(XFS_DQ_IS_HASH_LOCKED(h));
+	dqp->q_hash = h;
+	XQM_HASHLIST_INSERT(h, dqp);
+
+	/*
+	 * Attach this dquot to this filesystem's list of all dquots,
+	 * kept inside the mount structure in m_quotainfo field
+	 */
+	xfs_qm_mplist_lock(mp);
+
+	/*
+	 * We return a locked dquot to the caller, with a reference taken
+	 */
+	xfs_dqlock(dqp);
+	dqp->q_nrefs = 1;
+
+	XQM_MPLIST_INSERT(&(XFS_QI_MPL_LIST(mp)), dqp);
+
+	xfs_qm_mplist_unlock(mp);
+	XFS_DQ_HASH_UNLOCK(h);
+ dqret:
+	ASSERT((ip == NULL) || XFS_ISLOCKED_INODE_EXCL(ip));
+	xfs_dqtrace_entry(dqp, "DQGET DONE");
+	*O_dqpp = dqp;
+	return (0);
+}
+
+
+/*
+ * Release a reference to the dquot (decrement ref-count)
+ * and unlock it. If there is a group quota attached to this
+ * dquot, carefully release that too without tripping over
+ * deadlocks'n'stuff.
+ */
+void
+xfs_qm_dqput(
+	xfs_dquot_t	*dqp)
+{
+	xfs_dquot_t	*gdqp;
+
+	ASSERT(dqp->q_nrefs > 0);
+	ASSERT(XFS_DQ_IS_LOCKED(dqp));
+	xfs_dqtrace_entry(dqp, "DQPUT");
+
+	if (dqp->q_nrefs != 1) {
+		dqp->q_nrefs--;
+		xfs_dqunlock(dqp);
+		return;
+	}
+
+	/*
+	 * drop the dqlock and acquire the freelist and dqlock
+	 * in the right order; but try to get it out-of-order first
+	 */
+	if (! xfs_qm_freelist_lock_nowait(xfs_Gqm)) {
+		xfs_dqtrace_entry(dqp, "DQPUT: FLLOCK-WAIT");
+		xfs_dqunlock(dqp);
+		xfs_qm_freelist_lock(xfs_Gqm);
+		xfs_dqlock(dqp);
+	}
+
+	while (1) {
+		gdqp = NULL;
+
+		/* We can't depend on nrefs being == 1 here */
+		if (--dqp->q_nrefs == 0) {
+			xfs_dqtrace_entry(dqp, "DQPUT: ON FREELIST");
+			/*
+			 * insert at end of the freelist.
+			 */
+			XQM_FREELIST_INSERT(&(xfs_Gqm->qm_dqfreelist), dqp);
+
+			/*
+			 * If we just added a udquot to the freelist, then
+			 * we want to release the gdquot reference that
+			 * it (probably) has. Otherwise it'll keep the
+			 * gdquot from getting reclaimed.
+			 */
+			if ((gdqp = dqp->q_gdquot)) {
+				/*
+				 * Avoid a recursive dqput call
+				 */
+				xfs_dqlock(gdqp);
+				dqp->q_gdquot = NULL;
+			}
+
+			/* xfs_qm_freelist_print(&(xfs_Gqm->qm_dqfreelist),
+			   "@@@@@++ Free list (after append) @@@@@+");
+			   */
+		}
+		xfs_dqunlock(dqp);
+
+		/*
+		 * If we had a group quota inside the user quota as a hint,
+		 * release it now.
+		 */
+		if (! gdqp)
+			break;
+		dqp = gdqp;
+	}
+	xfs_qm_freelist_unlock(xfs_Gqm);
+}
+
+/*
+ * Release a dquot. Flush it if dirty, then dqput() it.
+ * dquot must not be locked.
+ */
+void
+xfs_qm_dqrele(
+	xfs_dquot_t	*dqp)
+{
+	ASSERT(dqp);
+	xfs_dqtrace_entry(dqp, "DQRELE");
+
+	xfs_dqlock(dqp);
+	/*
+	 * We don't care to flush it if the dquot is dirty here.
+	 * That will create stutters that we want to avoid.
+	 * Instead we do a delayed write when we try to reclaim
+	 * a dirty dquot. Also xfs_sync will take part of the burden...
+	 */
+	xfs_qm_dqput(dqp);
+}
+
+
+/*
+ * Write a modified dquot to disk.
+ * The dquot must be locked and the flush lock too taken by caller.
+ * The flush lock will not be unlocked until the dquot reaches the disk,
+ * but the dquot is free to be unlocked and modified by the caller
+ * in the interim. Dquot is still locked on return. This behavior is
+ * identical to that of inodes.
+ */
+int
+xfs_qm_dqflush(
+	xfs_dquot_t		*dqp,
+	uint			flags)
+{
+	xfs_mount_t		*mp;
+	xfs_buf_t		*bp;
+	xfs_disk_dquot_t	*ddqp;
+	int			error;
+	SPLDECL(s);
+
+	ASSERT(XFS_DQ_IS_LOCKED(dqp));
+	ASSERT(XFS_DQ_IS_FLUSH_LOCKED(dqp));
+	xfs_dqtrace_entry(dqp, "DQFLUSH");
+
+	/*
+	 * If not dirty, nada.
+	 */
+	if (!XFS_DQ_IS_DIRTY(dqp)) {
+		xfs_dqfunlock(dqp);
+		return (0);
+	}
+
+	/*
+	 * Cant flush a pinned dquot. Wait for it.
+	 */
+	xfs_qm_dqunpin_wait(dqp);
+
+	/*
+	 * This may have been unpinned because the filesystem is shutting
+	 * down forcibly. If that's the case we must not write this dquot
+	 * to disk, because the log record didn't make it to disk!
+	 */
+	if (XFS_FORCED_SHUTDOWN(dqp->q_mount)) {
+		dqp->dq_flags &= ~(XFS_DQ_DIRTY);
+		xfs_dqfunlock(dqp);
+		return XFS_ERROR(EIO);
+	}
+
+	/*
+	 * Get the buffer containing the on-disk dquot
+	 * We don't need a transaction envelope because we know that the
+	 * the ondisk-dquot has already been allocated for.
+	 */
+	if ((error = xfs_qm_dqtobp(NULL, dqp, &ddqp, &bp, XFS_QMOPT_DOWARN))) {
+		xfs_dqtrace_entry(dqp, "DQTOBP FAIL");
+		ASSERT(error != ENOENT);
+		/*
+		 * Quotas could have gotten turned off (ESRCH)
+		 */
+		xfs_dqfunlock(dqp);
+		return (error);
+	}
+
+	if (xfs_qm_dqcheck(&dqp->q_core, INT_GET(ddqp->d_id, ARCH_CONVERT), 0, XFS_QMOPT_DOWARN,
+			   "dqflush (incore copy)")) {
+		xfs_force_shutdown(dqp->q_mount, XFS_CORRUPT_INCORE);
+		return XFS_ERROR(EIO);
+	}
+
+	/* This is the only portion of data that needs to persist */
+	memcpy(ddqp, &(dqp->q_core), sizeof(xfs_disk_dquot_t));
+
+	/*
+	 * Clear the dirty field and remember the flush lsn for later use.
+	 */
+	dqp->dq_flags &= ~(XFS_DQ_DIRTY);
+	mp = dqp->q_mount;
+
+	/* lsn is 64 bits */
+	AIL_LOCK(mp, s);
+	dqp->q_logitem.qli_flush_lsn = dqp->q_logitem.qli_item.li_lsn;
+	AIL_UNLOCK(mp, s);
+
+	/*
+	 * Attach an iodone routine so that we can remove this dquot from the
+	 * AIL and release the flush lock once the dquot is synced to disk.
+	 */
+	xfs_buf_attach_iodone(bp, (void(*)(xfs_buf_t *, xfs_log_item_t *))
+			      xfs_qm_dqflush_done, &(dqp->q_logitem.qli_item));
+	/*
+	 * If the buffer is pinned then push on the log so we won't
+	 * get stuck waiting in the write for too long.
+	 */
+	if (XFS_BUF_ISPINNED(bp)) {
+		xfs_dqtrace_entry(dqp, "DQFLUSH LOG FORCE");
+		xfs_log_force(mp, (xfs_lsn_t)0, XFS_LOG_FORCE);
+	}
+
+	if (flags & XFS_QMOPT_DELWRI) {
+		xfs_bdwrite(mp, bp);
+	} else if (flags & XFS_QMOPT_ASYNC) {
+		xfs_bawrite(mp, bp);
+	} else {
+		error = xfs_bwrite(mp, bp);
+	}
+	xfs_dqtrace_entry(dqp, "DQFLUSH END");
+	/*
+	 * dqp is still locked, but caller is free to unlock it now.
+	 */
+	return (error);
+
+}
+
+/*
+ * This is the dquot flushing I/O completion routine.  It is called
+ * from interrupt level when the buffer containing the dquot is
+ * flushed to disk.  It is responsible for removing the dquot logitem
+ * from the AIL if it has not been re-logged, and unlocking the dquot's
+ * flush lock. This behavior is very similar to that of inodes..
+ */
+/*ARGSUSED*/
+STATIC void
+xfs_qm_dqflush_done(
+	xfs_buf_t		*bp,
+	xfs_dq_logitem_t	*qip)
+{
+	xfs_dquot_t		*dqp;
+	SPLDECL(s);
+
+	dqp = qip->qli_dquot;
+
+	/*
+	 * We only want to pull the item from the AIL if its
+	 * location in the log has not changed since we started the flush.
+	 * Thus, we only bother if the dquot's lsn has
+	 * not changed. First we check the lsn outside the lock
+	 * since it's cheaper, and then we recheck while
+	 * holding the lock before removing the dquot from the AIL.
+	 */
+	if ((qip->qli_item.li_flags & XFS_LI_IN_AIL) &&
+	    qip->qli_item.li_lsn == qip->qli_flush_lsn) {
+
+		AIL_LOCK(dqp->q_mount, s);
+		/*
+		 * xfs_trans_delete_ail() drops the AIL lock.
+		 */
+		if (qip->qli_item.li_lsn == qip->qli_flush_lsn)
+			xfs_trans_delete_ail(dqp->q_mount,
+					     (xfs_log_item_t*)qip, s);
+		else
+			AIL_UNLOCK(dqp->q_mount, s);
+	}
+
+	/*
+	 * Release the dq's flush lock since we're done with it.
+	 */
+	xfs_dqfunlock(dqp);
+}
+
+
+int
+xfs_qm_dqflock_nowait(
+	xfs_dquot_t *dqp)
+{
+	int locked;
+
+	locked = cpsema(&((dqp)->q_flock));
+
+	/* XXX ifdef these out */
+	if (locked)
+		(dqp)->dq_flags |= XFS_DQ_FLOCKED;
+	return (locked);
+}
+
+
+int
+xfs_qm_dqlock_nowait(
+	xfs_dquot_t *dqp)
+{
+	return (mutex_trylock(&((dqp)->q_qlock)));
+}
+
+void
+xfs_dqlock(
+	xfs_dquot_t *dqp)
+{
+	mutex_lock(&(dqp->q_qlock), PINOD);
+}
+
+void
+xfs_dqunlock(
+	xfs_dquot_t *dqp)
+{
+	mutex_unlock(&(dqp->q_qlock));
+	if (dqp->q_logitem.qli_dquot == dqp) {
+		/* Once was dqp->q_mount, but might just have been cleared */
+		xfs_trans_unlocked_item(dqp->q_logitem.qli_item.li_mountp,
+					(xfs_log_item_t*)&(dqp->q_logitem));
+	}
+}
+
+
+void
+xfs_dqunlock_nonotify(
+	xfs_dquot_t *dqp)
+{
+	mutex_unlock(&(dqp->q_qlock));
+}
+
+void
+xfs_dqlock2(
+	xfs_dquot_t	*d1,
+	xfs_dquot_t	*d2)
+{
+	if (d1 && d2) {
+		ASSERT(d1 != d2);
+		if (INT_GET(d1->q_core.d_id, ARCH_CONVERT) > INT_GET(d2->q_core.d_id, ARCH_CONVERT)) {
+			xfs_dqlock(d2);
+			xfs_dqlock(d1);
+		} else {
+			xfs_dqlock(d1);
+			xfs_dqlock(d2);
+		}
+	} else {
+		if (d1) {
+			xfs_dqlock(d1);
+		} else if (d2) {
+			xfs_dqlock(d2);
+		}
+	}
+}
+
+
+/*
+ * Take a dquot out of the mount's dqlist as well as the hashlist.
+ * This is called via unmount as well as quotaoff, and the purge
+ * will always succeed unless there are soft (temp) references
+ * outstanding.
+ *
+ * This returns 0 if it was purged, 1 if it wasn't. It's not an error code
+ * that we're returning! XXXsup - not cool.
+ */
+/* ARGSUSED */
+int
+xfs_qm_dqpurge(
+	xfs_dquot_t	*dqp,
+	uint		flags)
+{
+	xfs_dqhash_t	*thishash;
+	xfs_mount_t	*mp;
+
+	mp = dqp->q_mount;
+
+	ASSERT(XFS_QM_IS_MPLIST_LOCKED(mp));
+	ASSERT(XFS_DQ_IS_HASH_LOCKED(dqp->q_hash));
+
+	xfs_dqlock(dqp);
+	/*
+	 * We really can't afford to purge a dquot that is
+	 * referenced, because these are hard refs.
+	 * It shouldn't happen in general because we went thru _all_ inodes in
+	 * dqrele_all_inodes before calling this and didn't let the mountlock go.
+	 * However it is possible that we have dquots with temporary
+	 * references that are not attached to an inode. e.g. see xfs_setattr().
+	 */
+	if (dqp->q_nrefs != 0) {
+		xfs_dqunlock(dqp);
+		XFS_DQ_HASH_UNLOCK(dqp->q_hash);
+		return (1);
+	}
+
+	ASSERT(XFS_DQ_IS_ON_FREELIST(dqp));
+
+	/*
+	 * If we're turning off quotas, we have to make sure that, for
+	 * example, we don't delete quota disk blocks while dquots are
+	 * in the process of getting written to those disk blocks.
+	 * This dquot might well be on AIL, and we can't leave it there
+	 * if we're turning off quotas. Basically, we need this flush
+	 * lock, and are willing to block on it.
+	 */
+	if (! xfs_qm_dqflock_nowait(dqp)) {
+		/*
+		 * Block on the flush lock after nudging dquot buffer,
+		 * if it is incore.
+		 */
+		xfs_qm_dqflock_pushbuf_wait(dqp);
+	}
+
+	/*
+	 * XXXIf we're turning this type of quotas off, we don't care
+	 * about the dirty metadata sitting in this dquot. OTOH, if
+	 * we're unmounting, we do care, so we flush it and wait.
+	 */
+	if (XFS_DQ_IS_DIRTY(dqp)) {
+		xfs_dqtrace_entry(dqp, "DQPURGE ->DQFLUSH: DQDIRTY");
+		/* dqflush unlocks dqflock */
+		/*
+		 * Given that dqpurge is a very rare occurrence, it is OK
+		 * that we're holding the hashlist and mplist locks
+		 * across the disk write. But, ... XXXsup
+		 *
+		 * We don't care about getting disk errors here. We need
+		 * to purge this dquot anyway, so we go ahead regardless.
+		 */
+		(void) xfs_qm_dqflush(dqp, XFS_QMOPT_SYNC);
+		xfs_dqflock(dqp);
+	}
+	ASSERT(dqp->q_pincount == 0);
+	ASSERT(XFS_FORCED_SHUTDOWN(mp) ||
+	       !(dqp->q_logitem.qli_item.li_flags & XFS_LI_IN_AIL));
+
+	thishash = dqp->q_hash;
+	XQM_HASHLIST_REMOVE(thishash, dqp);
+	XQM_MPLIST_REMOVE(&(XFS_QI_MPL_LIST(mp)), dqp);
+	/*
+	 * XXX Move this to the front of the freelist, if we can get the
+	 * freelist lock.
+	 */
+	ASSERT(XFS_DQ_IS_ON_FREELIST(dqp));
+
+	dqp->q_mount = NULL;
+	dqp->q_hash = NULL;
+	dqp->dq_flags = XFS_DQ_INACTIVE;
+	memset(&dqp->q_core, 0, sizeof(dqp->q_core));
+	xfs_dqfunlock(dqp);
+	xfs_dqunlock(dqp);
+	XFS_DQ_HASH_UNLOCK(thishash);
+	return (0);
+}
+
+
+#ifdef QUOTADEBUG
+void
+xfs_qm_dqprint(xfs_dquot_t *dqp)
+{
+	cmn_err(CE_DEBUG, "-----------KERNEL DQUOT----------------");
+	cmn_err(CE_DEBUG, "---- dquotID =  %d",
+		(int)INT_GET(dqp->q_core.d_id, ARCH_CONVERT));
+	cmn_err(CE_DEBUG, "---- type    =  %s",
+		XFS_QM_ISUDQ(dqp) ? "USR" : "GRP");
+	cmn_err(CE_DEBUG, "---- fs      =  0x%p", dqp->q_mount);
+	cmn_err(CE_DEBUG, "---- blkno   =  0x%x", (int) dqp->q_blkno);
+	cmn_err(CE_DEBUG, "---- boffset =  0x%x", (int) dqp->q_bufoffset);
+	cmn_err(CE_DEBUG, "---- blkhlimit =  %Lu (0x%x)",
+		INT_GET(dqp->q_core.d_blk_hardlimit, ARCH_CONVERT),
+		(int) INT_GET(dqp->q_core.d_blk_hardlimit, ARCH_CONVERT));
+	cmn_err(CE_DEBUG, "---- blkslimit =  %Lu (0x%x)",
+		INT_GET(dqp->q_core.d_blk_softlimit, ARCH_CONVERT),
+		(int)INT_GET(dqp->q_core.d_blk_softlimit, ARCH_CONVERT));
+	cmn_err(CE_DEBUG, "---- inohlimit =  %Lu (0x%x)",
+		INT_GET(dqp->q_core.d_ino_hardlimit, ARCH_CONVERT),
+		(int)INT_GET(dqp->q_core.d_ino_hardlimit, ARCH_CONVERT));
+	cmn_err(CE_DEBUG, "---- inoslimit =  %Lu (0x%x)",
+		INT_GET(dqp->q_core.d_ino_softlimit, ARCH_CONVERT),
+		(int)INT_GET(dqp->q_core.d_ino_softlimit, ARCH_CONVERT));
+	cmn_err(CE_DEBUG, "---- bcount  =  %Lu (0x%x)",
+		INT_GET(dqp->q_core.d_bcount, ARCH_CONVERT),
+		(int)INT_GET(dqp->q_core.d_bcount, ARCH_CONVERT));
+	cmn_err(CE_DEBUG, "---- icount  =  %Lu (0x%x)",
+		INT_GET(dqp->q_core.d_icount, ARCH_CONVERT),
+		(int)INT_GET(dqp->q_core.d_icount, ARCH_CONVERT));
+	cmn_err(CE_DEBUG, "---- btimer  =  %d",
+		(int)INT_GET(dqp->q_core.d_btimer, ARCH_CONVERT));
+	cmn_err(CE_DEBUG, "---- itimer  =  %d",
+		(int)INT_GET(dqp->q_core.d_itimer, ARCH_CONVERT));
+	cmn_err(CE_DEBUG, "---------------------------");
+}
+#endif
+
+/*
+ * Give the buffer a little push if it is incore and
+ * wait on the flush lock.
+ */
+void
+xfs_qm_dqflock_pushbuf_wait(
+	xfs_dquot_t	*dqp)
+{
+	xfs_buf_t	*bp;
+
+	/*
+	 * Check to see if the dquot has been flushed delayed
+	 * write.  If so, grab its buffer and send it
+	 * out immediately.  We'll be able to acquire
+	 * the flush lock when the I/O completes.
+	 */
+	bp = xfs_incore(dqp->q_mount->m_ddev_targp, dqp->q_blkno,
+		    XFS_QI_DQCHUNKLEN(dqp->q_mount),
+		    XFS_INCORE_TRYLOCK);
+	if (bp != NULL) {
+		if (XFS_BUF_ISDELAYWRITE(bp)) {
+			if (XFS_BUF_ISPINNED(bp)) {
+				xfs_log_force(dqp->q_mount,
+					      (xfs_lsn_t)0,
+					      XFS_LOG_FORCE);
+			}
+			xfs_bawrite(dqp->q_mount, bp);
+		} else {
+			xfs_buf_relse(bp);
+		}
+	}
+	xfs_dqflock(dqp);
+}
diff --git a/fs/xfs/quota/xfs_dquot.h b/fs/xfs/quota/xfs_dquot.h
new file mode 100644
index 00000000000000..0c3fe3175baa4a
--- /dev/null
+++ b/fs/xfs/quota/xfs_dquot.h
@@ -0,0 +1,224 @@
+/*
+ * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.	 Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_DQUOT_H__
+#define __XFS_DQUOT_H__
+
+/*
+ * Dquots are structures that hold quota information about a user or a group,
+ * much like inodes are for files. In fact, dquots share many characteristics
+ * with inodes. However, dquots can also be a centralized resource, relative
+ * to a collection of inodes. In this respect, dquots share some characteristics
+ * of the superblock.
+ * XFS dquots exploit both those in its algorithms. They make every attempt
+ * to not be a bottleneck when quotas are on and have minimal impact, if any,
+ * when quotas are off.
+ */
+
+/*
+ * The hash chain headers (hash buckets)
+ */
+typedef struct xfs_dqhash {
+	struct xfs_dquot *qh_next;
+	mutex_t		  qh_lock;
+	uint		  qh_version;	/* ever increasing version */
+	uint		  qh_nelems;	/* number of dquots on the list */
+} xfs_dqhash_t;
+
+typedef struct xfs_dqlink {
+	struct xfs_dquot  *ql_next;	/* forward link */
+	struct xfs_dquot **ql_prevp;	/* pointer to prev ql_next */
+} xfs_dqlink_t;
+
+struct xfs_mount;
+struct xfs_trans;
+
+/*
+ * This is the marker which is designed to occupy the first few
+ * bytes of the xfs_dquot_t structure. Even inside this, the freelist pointers
+ * must come first.
+ * This serves as the marker ("sentinel") when we have to restart list
+ * iterations because of locking considerations.
+ */
+typedef struct xfs_dqmarker {
+	struct xfs_dquot*dqm_flnext;	/* link to freelist: must be first */
+	struct xfs_dquot*dqm_flprev;
+	xfs_dqlink_t	 dqm_mplist;	/* link to mount's list of dquots */
+	xfs_dqlink_t	 dqm_hashlist;	/* link to the hash chain */
+	uint		 dqm_flags;	/* various flags (XFS_DQ_*) */
+} xfs_dqmarker_t;
+
+/*
+ * The incore dquot structure
+ */
+typedef struct xfs_dquot {
+	xfs_dqmarker_t	 q_lists;	/* list ptrs, q_flags (marker) */
+	xfs_dqhash_t	*q_hash;	/* the hashchain header */
+	struct xfs_mount*q_mount;	/* filesystem this relates to */
+	struct xfs_trans*q_transp;	/* trans this belongs to currently */
+	uint		 q_nrefs;	/* # active refs from inodes */
+	xfs_daddr_t	 q_blkno;	/* blkno of dquot buffer */
+	int		 q_bufoffset;	/* off of dq in buffer (# dquots) */
+	xfs_fileoff_t	 q_fileoffset;	/* offset in quotas file */
+
+	struct xfs_dquot*q_gdquot;	/* group dquot, hint only */
+	xfs_disk_dquot_t q_core;	/* actual usage & quotas */
+	xfs_dq_logitem_t q_logitem;	/* dquot log item */
+	xfs_qcnt_t	 q_res_bcount;	/* total regular nblks used+reserved */
+	xfs_qcnt_t	 q_res_icount;	/* total inos allocd+reserved */
+	xfs_qcnt_t	 q_res_rtbcount;/* total realtime blks used+reserved */
+	mutex_t		 q_qlock;	/* quota lock */
+	sema_t		 q_flock;	/* flush lock */
+	uint		 q_pincount;	/* pin count for this dquot */
+	sv_t		 q_pinwait;	/* sync var for pinning */
+#ifdef XFS_DQUOT_TRACE
+	struct ktrace	*q_trace;	/* trace header structure */
+#endif
+} xfs_dquot_t;
+
+
+#define dq_flnext	q_lists.dqm_flnext
+#define dq_flprev	q_lists.dqm_flprev
+#define dq_mplist	q_lists.dqm_mplist
+#define dq_hashlist	q_lists.dqm_hashlist
+#define dq_flags	q_lists.dqm_flags
+
+#define XFS_DQHOLD(dqp)		((dqp)->q_nrefs++)
+
+/*
+ * Quota Accounting flags
+ */
+#define XFS_ALL_QUOTA_ACCT	(XFS_UQUOTA_ACCT | XFS_GQUOTA_ACCT)
+#define XFS_ALL_QUOTA_ENFD	(XFS_UQUOTA_ENFD | XFS_GQUOTA_ENFD)
+#define XFS_ALL_QUOTA_CHKD	(XFS_UQUOTA_CHKD | XFS_GQUOTA_CHKD)
+#define XFS_ALL_QUOTA_ACTV	(XFS_UQUOTA_ACTIVE | XFS_GQUOTA_ACTIVE)
+#define XFS_ALL_QUOTA_ACCT_ENFD (XFS_UQUOTA_ACCT|XFS_UQUOTA_ENFD|\
+				 XFS_GQUOTA_ACCT|XFS_GQUOTA_ENFD)
+
+#define XFS_IS_QUOTA_RUNNING(mp)  ((mp)->m_qflags & XFS_ALL_QUOTA_ACCT)
+#define XFS_IS_UQUOTA_RUNNING(mp) ((mp)->m_qflags & XFS_UQUOTA_ACCT)
+#define XFS_IS_GQUOTA_RUNNING(mp) ((mp)->m_qflags & XFS_GQUOTA_ACCT)
+
+/*
+ * Quota Limit Enforcement flags
+ */
+#define XFS_IS_QUOTA_ENFORCED(mp)	((mp)->m_qflags & XFS_ALL_QUOTA_ENFD)
+#define XFS_IS_UQUOTA_ENFORCED(mp)	((mp)->m_qflags & XFS_UQUOTA_ENFD)
+#define XFS_IS_GQUOTA_ENFORCED(mp)	((mp)->m_qflags & XFS_GQUOTA_ENFD)
+
+#ifdef DEBUG
+static inline int
+XFS_DQ_IS_LOCKED(xfs_dquot_t *dqp)
+{
+	if (mutex_trylock(&dqp->q_qlock)) {
+		mutex_unlock(&dqp->q_qlock);
+		return 0;
+	}
+	return 1;
+}
+#endif
+
+
+/*
+ * The following three routines simply manage the q_flock
+ * semaphore embedded in the dquot.  This semaphore synchronizes
+ * processes attempting to flush the in-core dquot back to disk.
+ */
+#define xfs_dqflock(dqp)	 { psema(&((dqp)->q_flock), PINOD | PRECALC);\
+				   (dqp)->dq_flags |= XFS_DQ_FLOCKED; }
+#define xfs_dqfunlock(dqp)	 { ASSERT(valusema(&((dqp)->q_flock)) <= 0); \
+				   vsema(&((dqp)->q_flock)); \
+				   (dqp)->dq_flags &= ~(XFS_DQ_FLOCKED); }
+
+#define XFS_DQ_PINLOCK(dqp)	   mutex_spinlock( \
+				     &(XFS_DQ_TO_QINF(dqp)->qi_pinlock))
+#define XFS_DQ_PINUNLOCK(dqp, s)   mutex_spinunlock( \
+				     &(XFS_DQ_TO_QINF(dqp)->qi_pinlock), s)
+
+#define XFS_DQ_IS_FLUSH_LOCKED(dqp) (valusema(&((dqp)->q_flock)) <= 0)
+#define XFS_DQ_IS_ON_FREELIST(dqp)  ((dqp)->dq_flnext != (dqp))
+#define XFS_DQ_IS_DIRTY(dqp)	((dqp)->dq_flags & XFS_DQ_DIRTY)
+#define XFS_QM_ISUDQ(dqp)	((dqp)->dq_flags & XFS_DQ_USER)
+#define XFS_DQ_TO_QINF(dqp)	((dqp)->q_mount->m_quotainfo)
+#define XFS_DQ_TO_QIP(dqp)	(XFS_QM_ISUDQ(dqp) ? \
+				 XFS_DQ_TO_QINF(dqp)->qi_uquotaip : \
+				 XFS_DQ_TO_QINF(dqp)->qi_gquotaip)
+
+#define XFS_IS_THIS_QUOTA_OFF(d) (! (XFS_QM_ISUDQ(d) ? \
+				     (XFS_IS_UQUOTA_ON((d)->q_mount)) : \
+				     (XFS_IS_GQUOTA_ON((d)->q_mount))))
+
+#ifdef XFS_DQUOT_TRACE
+/*
+ * Dquot Tracing stuff.
+ */
+#define DQUOT_TRACE_SIZE	64
+#define DQUOT_KTRACE_ENTRY	1
+
+extern void		__xfs_dqtrace_entry(xfs_dquot_t *dqp, char *func,
+					    void *, xfs_inode_t *);
+#define xfs_dqtrace_entry_ino(a,b,ip) \
+		__xfs_dqtrace_entry((a), (b), (void*)__return_address, (ip))
+#define xfs_dqtrace_entry(a,b) \
+		__xfs_dqtrace_entry((a), (b), (void*)__return_address, NULL)
+#else
+#define xfs_dqtrace_entry(a,b)
+#define xfs_dqtrace_entry_ino(a,b,ip)
+#endif
+
+#ifdef QUOTADEBUG
+extern void		xfs_qm_dqprint(xfs_dquot_t *);
+#else
+#define xfs_qm_dqprint(a)
+#endif
+
+extern void		xfs_qm_dqdestroy(xfs_dquot_t *);
+extern int		xfs_qm_dqflush(xfs_dquot_t *, uint);
+extern int		xfs_qm_dqpurge(xfs_dquot_t *, uint);
+extern void		xfs_qm_dqunpin_wait(xfs_dquot_t *);
+extern int		xfs_qm_dqlock_nowait(xfs_dquot_t *);
+extern int		xfs_qm_dqflock_nowait(xfs_dquot_t *);
+extern void		xfs_qm_dqflock_pushbuf_wait(xfs_dquot_t *dqp);
+extern void		xfs_qm_adjust_dqtimers(xfs_mount_t *,
+					xfs_disk_dquot_t *);
+extern void		xfs_qm_adjust_dqlimits(xfs_mount_t *,
+					xfs_disk_dquot_t *);
+extern int		xfs_qm_dqwarn(xfs_disk_dquot_t *, uint);
+extern int		xfs_qm_dqget(xfs_mount_t *, xfs_inode_t *,
+					xfs_dqid_t, uint, uint, xfs_dquot_t **);
+extern void		xfs_qm_dqput(xfs_dquot_t *);
+extern void		xfs_qm_dqrele(xfs_dquot_t *);
+extern void		xfs_dqlock(xfs_dquot_t *);
+extern void		xfs_dqlock2(xfs_dquot_t *, xfs_dquot_t *);
+extern void		xfs_dqunlock(xfs_dquot_t *);
+extern void		xfs_dqunlock_nonotify(xfs_dquot_t *);
+
+#endif /* __XFS_DQUOT_H__ */
diff --git a/fs/xfs/quota/xfs_dquot_item.c b/fs/xfs/quota/xfs_dquot_item.c
new file mode 100644
index 00000000000000..a5425ee6e7bd53
--- /dev/null
+++ b/fs/xfs/quota/xfs_dquot_item.c
@@ -0,0 +1,715 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.	 Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_alloc.h"
+#include "xfs_dmapi.h"
+#include "xfs_quota.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_bit.h"
+#include "xfs_rtalloc.h"
+#include "xfs_error.h"
+#include "xfs_itable.h"
+#include "xfs_rw.h"
+#include "xfs_acl.h"
+#include "xfs_cap.h"
+#include "xfs_mac.h"
+#include "xfs_attr.h"
+#include "xfs_buf_item.h"
+#include "xfs_trans_priv.h"
+
+#include "xfs_qm.h"
+
+
+/*
+ * returns the number of iovecs needed to log the given dquot item.
+ */
+/* ARGSUSED */
+STATIC uint
+xfs_qm_dquot_logitem_size(
+	xfs_dq_logitem_t	*logitem)
+{
+	/*
+	 * we need only two iovecs, one for the format, one for the real thing
+	 */
+	return (2);
+}
+
+/*
+ * fills in the vector of log iovecs for the given dquot log item.
+ */
+STATIC void
+xfs_qm_dquot_logitem_format(
+	xfs_dq_logitem_t	*logitem,
+	xfs_log_iovec_t		*logvec)
+{
+	ASSERT(logitem);
+	ASSERT(logitem->qli_dquot);
+
+	logvec->i_addr = (xfs_caddr_t)&logitem->qli_format;
+	logvec->i_len  = sizeof(xfs_dq_logformat_t);
+	logvec++;
+	logvec->i_addr = (xfs_caddr_t)&logitem->qli_dquot->q_core;
+	logvec->i_len  = sizeof(xfs_disk_dquot_t);
+
+	ASSERT(2 == logitem->qli_item.li_desc->lid_size);
+	logitem->qli_format.qlf_size = 2;
+
+}
+
+/*
+ * Increment the pin count of the given dquot.
+ * This value is protected by pinlock spinlock in the xQM structure.
+ */
+STATIC void
+xfs_qm_dquot_logitem_pin(
+	xfs_dq_logitem_t *logitem)
+{
+	unsigned long	s;
+	xfs_dquot_t *dqp;
+
+	dqp = logitem->qli_dquot;
+	ASSERT(XFS_DQ_IS_LOCKED(dqp));
+	s = XFS_DQ_PINLOCK(dqp);
+	dqp->q_pincount++;
+	XFS_DQ_PINUNLOCK(dqp, s);
+}
+
+/*
+ * Decrement the pin count of the given dquot, and wake up
+ * anyone in xfs_dqwait_unpin() if the count goes to 0.	 The
+ * dquot must have been previously pinned with a call to xfs_dqpin().
+ */
+/* ARGSUSED */
+STATIC void
+xfs_qm_dquot_logitem_unpin(
+	xfs_dq_logitem_t *logitem,
+	int		  stale)
+{
+	unsigned long	s;
+	xfs_dquot_t *dqp;
+
+	dqp = logitem->qli_dquot;
+	ASSERT(dqp->q_pincount > 0);
+	s = XFS_DQ_PINLOCK(dqp);
+	dqp->q_pincount--;
+	if (dqp->q_pincount == 0) {
+		sv_broadcast(&dqp->q_pinwait);
+	}
+	XFS_DQ_PINUNLOCK(dqp, s);
+}
+
+/* ARGSUSED */
+STATIC void
+xfs_qm_dquot_logitem_unpin_remove(
+	xfs_dq_logitem_t *logitem,
+	xfs_trans_t	 *tp)
+{
+	xfs_qm_dquot_logitem_unpin(logitem, 0);
+}
+
+/*
+ * Given the logitem, this writes the corresponding dquot entry to disk
+ * asynchronously. This is called with the dquot entry securely locked;
+ * we simply get xfs_qm_dqflush() to do the work, and unlock the dquot
+ * at the end.
+ */
+STATIC void
+xfs_qm_dquot_logitem_push(
+	xfs_dq_logitem_t	*logitem)
+{
+	xfs_dquot_t	*dqp;
+
+	dqp = logitem->qli_dquot;
+
+	ASSERT(XFS_DQ_IS_LOCKED(dqp));
+	ASSERT(XFS_DQ_IS_FLUSH_LOCKED(dqp));
+
+	/*
+	 * Since we were able to lock the dquot's flush lock and
+	 * we found it on the AIL, the dquot must be dirty.  This
+	 * is because the dquot is removed from the AIL while still
+	 * holding the flush lock in xfs_dqflush_done().  Thus, if
+	 * we found it in the AIL and were able to obtain the flush
+	 * lock without sleeping, then there must not have been
+	 * anyone in the process of flushing the dquot.
+	 */
+	xfs_qm_dqflush(dqp, XFS_B_DELWRI);
+	xfs_dqunlock(dqp);
+}
+
+/*ARGSUSED*/
+STATIC xfs_lsn_t
+xfs_qm_dquot_logitem_committed(
+	xfs_dq_logitem_t	*l,
+	xfs_lsn_t		lsn)
+{
+	/*
+	 * We always re-log the entire dquot when it becomes dirty,
+	 * so, the latest copy _is_ the only one that matters.
+	 */
+	return (lsn);
+}
+
+
+/*
+ * This is called to wait for the given dquot to be unpinned.
+ * Most of these pin/unpin routines are plagiarized from inode code.
+ */
+void
+xfs_qm_dqunpin_wait(
+	xfs_dquot_t	*dqp)
+{
+	SPLDECL(s);
+
+	ASSERT(XFS_DQ_IS_LOCKED(dqp));
+	if (dqp->q_pincount == 0) {
+		return;
+	}
+
+	/*
+	 * Give the log a push so we don't wait here too long.
+	 */
+	xfs_log_force(dqp->q_mount, (xfs_lsn_t)0, XFS_LOG_FORCE);
+	s = XFS_DQ_PINLOCK(dqp);
+	if (dqp->q_pincount == 0) {
+		XFS_DQ_PINUNLOCK(dqp, s);
+		return;
+	}
+	sv_wait(&(dqp->q_pinwait), PINOD,
+		&(XFS_DQ_TO_QINF(dqp)->qi_pinlock), s);
+}
+
+/*
+ * This is called when IOP_TRYLOCK returns XFS_ITEM_PUSHBUF to indicate that
+ * the dquot is locked by us, but the flush lock isn't. So, here we are
+ * going to see if the relevant dquot buffer is incore, waiting on DELWRI.
+ * If so, we want to push it out to help us take this item off the AIL as soon
+ * as possible.
+ *
+ * We must not be holding the AIL_LOCK at this point. Calling incore() to
+ * search the buffercache can be a time consuming thing, and AIL_LOCK is a
+ * spinlock.
+ */
+STATIC void
+xfs_qm_dquot_logitem_pushbuf(
+	xfs_dq_logitem_t    *qip)
+{
+	xfs_dquot_t	*dqp;
+	xfs_mount_t	*mp;
+	xfs_buf_t	*bp;
+	uint		dopush;
+
+	dqp = qip->qli_dquot;
+	ASSERT(XFS_DQ_IS_LOCKED(dqp));
+
+	/*
+	 * The qli_pushbuf_flag keeps others from
+	 * trying to duplicate our effort.
+	 */
+	ASSERT(qip->qli_pushbuf_flag != 0);
+	ASSERT(qip->qli_push_owner == get_thread_id());
+
+	/*
+	 * If flushlock isn't locked anymore, chances are that the
+	 * inode flush completed and the inode was taken off the AIL.
+	 * So, just get out.
+	 */
+	if ((valusema(&(dqp->q_flock)) > 0)  ||
+	    ((qip->qli_item.li_flags & XFS_LI_IN_AIL) == 0)) {
+		qip->qli_pushbuf_flag = 0;
+		xfs_dqunlock(dqp);
+		return;
+	}
+	mp = dqp->q_mount;
+	bp = xfs_incore(mp->m_ddev_targp, qip->qli_format.qlf_blkno,
+		    XFS_QI_DQCHUNKLEN(mp),
+		    XFS_INCORE_TRYLOCK);
+	if (bp != NULL) {
+		if (XFS_BUF_ISDELAYWRITE(bp)) {
+			dopush = ((qip->qli_item.li_flags & XFS_LI_IN_AIL) &&
+				  (valusema(&(dqp->q_flock)) <= 0));
+			qip->qli_pushbuf_flag = 0;
+			xfs_dqunlock(dqp);
+
+			if (XFS_BUF_ISPINNED(bp)) {
+				xfs_log_force(mp, (xfs_lsn_t)0,
+					      XFS_LOG_FORCE);
+			}
+			if (dopush) {
+#ifdef XFSRACEDEBUG
+				delay_for_intr();
+				delay(300);
+#endif
+				xfs_bawrite(mp, bp);
+			} else {
+				xfs_buf_relse(bp);
+			}
+		} else {
+			qip->qli_pushbuf_flag = 0;
+			xfs_dqunlock(dqp);
+			xfs_buf_relse(bp);
+		}
+		return;
+	}
+
+	qip->qli_pushbuf_flag = 0;
+	xfs_dqunlock(dqp);
+}
+
+/*
+ * This is called to attempt to lock the dquot associated with this
+ * dquot log item.  Don't sleep on the dquot lock or the flush lock.
+ * If the flush lock is already held, indicating that the dquot has
+ * been or is in the process of being flushed, then see if we can
+ * find the dquot's buffer in the buffer cache without sleeping.  If
+ * we can and it is marked delayed write, then we want to send it out.
+ * We delay doing so until the push routine, though, to avoid sleeping
+ * in any device strategy routines.
+ */
+STATIC uint
+xfs_qm_dquot_logitem_trylock(
+	xfs_dq_logitem_t	*qip)
+{
+	xfs_dquot_t		*dqp;
+	uint			retval;
+
+	dqp = qip->qli_dquot;
+	if (dqp->q_pincount > 0)
+		return (XFS_ITEM_PINNED);
+
+	if (! xfs_qm_dqlock_nowait(dqp))
+		return (XFS_ITEM_LOCKED);
+
+	retval = XFS_ITEM_SUCCESS;
+	if (! xfs_qm_dqflock_nowait(dqp)) {
+		/*
+		 * The dquot is already being flushed.	It may have been
+		 * flushed delayed write, however, and we don't want to
+		 * get stuck waiting for that to complete.  So, we want to check
+		 * to see if we can lock the dquot's buffer without sleeping.
+		 * If we can and it is marked for delayed write, then we
+		 * hold it and send it out from the push routine.  We don't
+		 * want to do that now since we might sleep in the device
+		 * strategy routine.  We also don't want to grab the buffer lock
+		 * here because we'd like not to call into the buffer cache
+		 * while holding the AIL_LOCK.
+		 * Make sure to only return PUSHBUF if we set pushbuf_flag
+		 * ourselves.  If someone else is doing it then we don't
+		 * want to go to the push routine and duplicate their efforts.
+		 */
+		if (qip->qli_pushbuf_flag == 0) {
+			qip->qli_pushbuf_flag = 1;
+			ASSERT(qip->qli_format.qlf_blkno == dqp->q_blkno);
+#ifdef DEBUG
+			qip->qli_push_owner = get_thread_id();
+#endif
+			/*
+			 * The dquot is left locked.
+			 */
+			retval = XFS_ITEM_PUSHBUF;
+		} else {
+			retval = XFS_ITEM_FLUSHING;
+			xfs_dqunlock_nonotify(dqp);
+		}
+	}
+
+	ASSERT(qip->qli_item.li_flags & XFS_LI_IN_AIL);
+	return (retval);
+}
+
+
+/*
+ * Unlock the dquot associated with the log item.
+ * Clear the fields of the dquot and dquot log item that
+ * are specific to the current transaction.  If the
+ * hold flags is set, do not unlock the dquot.
+ */
+STATIC void
+xfs_qm_dquot_logitem_unlock(
+	xfs_dq_logitem_t    *ql)
+{
+	xfs_dquot_t	*dqp;
+
+	ASSERT(ql != NULL);
+	dqp = ql->qli_dquot;
+	ASSERT(XFS_DQ_IS_LOCKED(dqp));
+
+	/*
+	 * Clear the transaction pointer in the dquot
+	 */
+	dqp->q_transp = NULL;
+
+	/*
+	 * dquots are never 'held' from getting unlocked at the end of
+	 * a transaction.  Their locking and unlocking is hidden inside the
+	 * transaction layer, within trans_commit. Hence, no LI_HOLD flag
+	 * for the logitem.
+	 */
+	xfs_dqunlock(dqp);
+}
+
+
+/*
+ * The transaction with the dquot locked has aborted.  The dquot
+ * must not be dirty within the transaction.  We simply unlock just
+ * as if the transaction had been cancelled.
+ */
+STATIC void
+xfs_qm_dquot_logitem_abort(
+	xfs_dq_logitem_t    *ql)
+{
+	xfs_qm_dquot_logitem_unlock(ql);
+}
+
+/*
+ * this needs to stamp an lsn into the dquot, I think.
+ * rpc's that look at user dquot's would then have to
+ * push on the dependency recorded in the dquot
+ */
+/* ARGSUSED */
+STATIC void
+xfs_qm_dquot_logitem_committing(
+	xfs_dq_logitem_t	*l,
+	xfs_lsn_t		lsn)
+{
+	return;
+}
+
+
+/*
+ * This is the ops vector for dquots
+ */
+struct xfs_item_ops xfs_dquot_item_ops = {
+	.iop_size	= (uint(*)(xfs_log_item_t*))xfs_qm_dquot_logitem_size,
+	.iop_format	= (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
+					xfs_qm_dquot_logitem_format,
+	.iop_pin	= (void(*)(xfs_log_item_t*))xfs_qm_dquot_logitem_pin,
+	.iop_unpin	= (void(*)(xfs_log_item_t*, int))
+					xfs_qm_dquot_logitem_unpin,
+	.iop_unpin_remove = (void(*)(xfs_log_item_t*, xfs_trans_t*))
+					xfs_qm_dquot_logitem_unpin_remove,
+	.iop_trylock	= (uint(*)(xfs_log_item_t*))
+					xfs_qm_dquot_logitem_trylock,
+	.iop_unlock	= (void(*)(xfs_log_item_t*))xfs_qm_dquot_logitem_unlock,
+	.iop_committed	= (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
+					xfs_qm_dquot_logitem_committed,
+	.iop_push	= (void(*)(xfs_log_item_t*))xfs_qm_dquot_logitem_push,
+	.iop_abort	= (void(*)(xfs_log_item_t*))xfs_qm_dquot_logitem_abort,
+	.iop_pushbuf	= (void(*)(xfs_log_item_t*))
+					xfs_qm_dquot_logitem_pushbuf,
+	.iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
+					xfs_qm_dquot_logitem_committing
+};
+
+/*
+ * Initialize the dquot log item for a newly allocated dquot.
+ * The dquot isn't locked at this point, but it isn't on any of the lists
+ * either, so we don't care.
+ */
+void
+xfs_qm_dquot_logitem_init(
+	struct xfs_dquot *dqp)
+{
+	xfs_dq_logitem_t  *lp;
+	lp = &dqp->q_logitem;
+
+	lp->qli_item.li_type = XFS_LI_DQUOT;
+	lp->qli_item.li_ops = &xfs_dquot_item_ops;
+	lp->qli_item.li_mountp = dqp->q_mount;
+	lp->qli_dquot = dqp;
+	lp->qli_format.qlf_type = XFS_LI_DQUOT;
+	lp->qli_format.qlf_id = INT_GET(dqp->q_core.d_id, ARCH_CONVERT);
+	lp->qli_format.qlf_blkno = dqp->q_blkno;
+	lp->qli_format.qlf_len = 1;
+	/*
+	 * This is just the offset of this dquot within its buffer
+	 * (which is currently 1 FSB and probably won't change).
+	 * Hence 32 bits for this offset should be just fine.
+	 * Alternatively, we can store (bufoffset / sizeof(xfs_dqblk_t))
+	 * here, and recompute it at recovery time.
+	 */
+	lp->qli_format.qlf_boffset = (__uint32_t)dqp->q_bufoffset;
+}
+
+/*------------------  QUOTAOFF LOG ITEMS  -------------------*/
+
+/*
+ * This returns the number of iovecs needed to log the given quotaoff item.
+ * We only need 1 iovec for an quotaoff item.  It just logs the
+ * quotaoff_log_format structure.
+ */
+/*ARGSUSED*/
+STATIC uint
+xfs_qm_qoff_logitem_size(xfs_qoff_logitem_t *qf)
+{
+	return (1);
+}
+
+/*
+ * This is called to fill in the vector of log iovecs for the
+ * given quotaoff log item. We use only 1 iovec, and we point that
+ * at the quotaoff_log_format structure embedded in the quotaoff item.
+ * It is at this point that we assert that all of the extent
+ * slots in the quotaoff item have been filled.
+ */
+STATIC void
+xfs_qm_qoff_logitem_format(xfs_qoff_logitem_t	*qf,
+			   xfs_log_iovec_t	*log_vector)
+{
+	ASSERT(qf->qql_format.qf_type == XFS_LI_QUOTAOFF);
+
+	log_vector->i_addr = (xfs_caddr_t)&(qf->qql_format);
+	log_vector->i_len = sizeof(xfs_qoff_logitem_t);
+	qf->qql_format.qf_size = 1;
+}
+
+
+/*
+ * Pinning has no meaning for an quotaoff item, so just return.
+ */
+/*ARGSUSED*/
+STATIC void
+xfs_qm_qoff_logitem_pin(xfs_qoff_logitem_t *qf)
+{
+	return;
+}
+
+
+/*
+ * Since pinning has no meaning for an quotaoff item, unpinning does
+ * not either.
+ */
+/*ARGSUSED*/
+STATIC void
+xfs_qm_qoff_logitem_unpin(xfs_qoff_logitem_t *qf, int stale)
+{
+	return;
+}
+
+/*ARGSUSED*/
+STATIC void
+xfs_qm_qoff_logitem_unpin_remove(xfs_qoff_logitem_t *qf, xfs_trans_t *tp)
+{
+	return;
+}
+
+/*
+ * Quotaoff items have no locking, so just return success.
+ */
+/*ARGSUSED*/
+STATIC uint
+xfs_qm_qoff_logitem_trylock(xfs_qoff_logitem_t *qf)
+{
+	return XFS_ITEM_LOCKED;
+}
+
+/*
+ * Quotaoff items have no locking or pushing, so return failure
+ * so that the caller doesn't bother with us.
+ */
+/*ARGSUSED*/
+STATIC void
+xfs_qm_qoff_logitem_unlock(xfs_qoff_logitem_t *qf)
+{
+	return;
+}
+
+/*
+ * The quotaoff-start-item is logged only once and cannot be moved in the log,
+ * so simply return the lsn at which it's been logged.
+ */
+/*ARGSUSED*/
+STATIC xfs_lsn_t
+xfs_qm_qoff_logitem_committed(xfs_qoff_logitem_t *qf, xfs_lsn_t lsn)
+{
+	return (lsn);
+}
+
+/*
+ * The transaction of which this QUOTAOFF is a part has been aborted.
+ * Just clean up after ourselves.
+ * Shouldn't this never happen in the case of qoffend logitems? XXX
+ */
+STATIC void
+xfs_qm_qoff_logitem_abort(xfs_qoff_logitem_t *qf)
+{
+	kmem_free(qf, sizeof(xfs_qoff_logitem_t));
+}
+
+/*
+ * There isn't much you can do to push on an quotaoff item.  It is simply
+ * stuck waiting for the log to be flushed to disk.
+ */
+/*ARGSUSED*/
+STATIC void
+xfs_qm_qoff_logitem_push(xfs_qoff_logitem_t *qf)
+{
+	return;
+}
+
+
+/*ARGSUSED*/
+STATIC xfs_lsn_t
+xfs_qm_qoffend_logitem_committed(
+	xfs_qoff_logitem_t *qfe,
+	xfs_lsn_t lsn)
+{
+	xfs_qoff_logitem_t	*qfs;
+	SPLDECL(s);
+
+	qfs = qfe->qql_start_lip;
+	AIL_LOCK(qfs->qql_item.li_mountp,s);
+	/*
+	 * Delete the qoff-start logitem from the AIL.
+	 * xfs_trans_delete_ail() drops the AIL lock.
+	 */
+	xfs_trans_delete_ail(qfs->qql_item.li_mountp, (xfs_log_item_t *)qfs, s);
+	kmem_free(qfs, sizeof(xfs_qoff_logitem_t));
+	kmem_free(qfe, sizeof(xfs_qoff_logitem_t));
+	return (xfs_lsn_t)-1;
+}
+
+/*
+ * XXX rcc - don't know quite what to do with this.  I think we can
+ * just ignore it.  The only time that isn't the case is if we allow
+ * the client to somehow see that quotas have been turned off in which
+ * we can't allow that to get back until the quotaoff hits the disk.
+ * So how would that happen?  Also, do we need different routines for
+ * quotaoff start and quotaoff end?  I suspect the answer is yes but
+ * to be sure, I need to look at the recovery code and see how quota off
+ * recovery is handled (do we roll forward or back or do something else).
+ * If we roll forwards or backwards, then we need two separate routines,
+ * one that does nothing and one that stamps in the lsn that matters
+ * (truly makes the quotaoff irrevocable).  If we do something else,
+ * then maybe we don't need two.
+ */
+/* ARGSUSED */
+STATIC void
+xfs_qm_qoff_logitem_committing(xfs_qoff_logitem_t *qip, xfs_lsn_t commit_lsn)
+{
+	return;
+}
+
+/* ARGSUSED */
+STATIC void
+xfs_qm_qoffend_logitem_committing(xfs_qoff_logitem_t *qip, xfs_lsn_t commit_lsn)
+{
+	return;
+}
+
+struct xfs_item_ops xfs_qm_qoffend_logitem_ops = {
+	.iop_size	= (uint(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_size,
+	.iop_format	= (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
+					xfs_qm_qoff_logitem_format,
+	.iop_pin	= (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_pin,
+	.iop_unpin	= (void(*)(xfs_log_item_t* ,int))
+					xfs_qm_qoff_logitem_unpin,
+	.iop_unpin_remove = (void(*)(xfs_log_item_t*,xfs_trans_t*))
+					xfs_qm_qoff_logitem_unpin_remove,
+	.iop_trylock	= (uint(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_trylock,
+	.iop_unlock	= (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_unlock,
+	.iop_committed	= (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
+					xfs_qm_qoffend_logitem_committed,
+	.iop_push	= (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_push,
+	.iop_abort	= (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_abort,
+	.iop_pushbuf	= NULL,
+	.iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
+					xfs_qm_qoffend_logitem_committing
+};
+
+/*
+ * This is the ops vector shared by all quotaoff-start log items.
+ */
+struct xfs_item_ops xfs_qm_qoff_logitem_ops = {
+	.iop_size	= (uint(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_size,
+	.iop_format	= (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
+					xfs_qm_qoff_logitem_format,
+	.iop_pin	= (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_pin,
+	.iop_unpin	= (void(*)(xfs_log_item_t*, int))
+					xfs_qm_qoff_logitem_unpin,
+	.iop_unpin_remove = (void(*)(xfs_log_item_t*,xfs_trans_t*))
+					xfs_qm_qoff_logitem_unpin_remove,
+	.iop_trylock	= (uint(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_trylock,
+	.iop_unlock	= (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_unlock,
+	.iop_committed	= (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
+					xfs_qm_qoff_logitem_committed,
+	.iop_push	= (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_push,
+	.iop_abort	= (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_abort,
+	.iop_pushbuf	= NULL,
+	.iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
+					xfs_qm_qoff_logitem_committing
+};
+
+/*
+ * Allocate and initialize an quotaoff item of the correct quota type(s).
+ */
+xfs_qoff_logitem_t *
+xfs_qm_qoff_logitem_init(
+	struct xfs_mount *mp,
+	xfs_qoff_logitem_t *start,
+	uint flags)
+{
+	xfs_qoff_logitem_t	*qf;
+
+	qf = (xfs_qoff_logitem_t*) kmem_zalloc(sizeof(xfs_qoff_logitem_t), KM_SLEEP);
+
+	qf->qql_item.li_type = XFS_LI_QUOTAOFF;
+	if (start)
+		qf->qql_item.li_ops = &xfs_qm_qoffend_logitem_ops;
+	else
+		qf->qql_item.li_ops = &xfs_qm_qoff_logitem_ops;
+	qf->qql_item.li_mountp = mp;
+	qf->qql_format.qf_type = XFS_LI_QUOTAOFF;
+	qf->qql_format.qf_flags = flags;
+	qf->qql_start_lip = start;
+	return (qf);
+}
diff --git a/fs/xfs/quota/xfs_dquot_item.h b/fs/xfs/quota/xfs_dquot_item.h
new file mode 100644
index 00000000000000..9c6500dabcaacf
--- /dev/null
+++ b/fs/xfs/quota/xfs_dquot_item.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.	 Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_DQUOT_ITEM_H__
+#define __XFS_DQUOT_ITEM_H__
+
+struct xfs_dquot;
+struct xfs_trans;
+struct xfs_mount;
+struct xfs_qoff_logitem;
+
+typedef struct xfs_dq_logitem {
+	xfs_log_item_t		 qli_item;	   /* common portion */
+	struct xfs_dquot	*qli_dquot;	   /* dquot ptr */
+	xfs_lsn_t		 qli_flush_lsn;	   /* lsn at last flush */
+	unsigned short		 qli_pushbuf_flag; /* 1 bit used in push_ail */
+#ifdef DEBUG
+	uint64_t		 qli_push_owner;
+#endif
+	xfs_dq_logformat_t	 qli_format;	   /* logged structure */
+} xfs_dq_logitem_t;
+
+typedef struct xfs_qoff_logitem {
+	xfs_log_item_t		 qql_item;	/* common portion */
+	struct xfs_qoff_logitem *qql_start_lip; /* qoff-start logitem, if any */
+	xfs_qoff_logformat_t	 qql_format;	/* logged structure */
+} xfs_qoff_logitem_t;
+
+
+extern void		   xfs_qm_dquot_logitem_init(struct xfs_dquot *);
+extern xfs_qoff_logitem_t *xfs_qm_qoff_logitem_init(struct xfs_mount *,
+					struct xfs_qoff_logitem *, uint);
+extern xfs_qoff_logitem_t *xfs_trans_get_qoff_item(struct xfs_trans *,
+					struct xfs_qoff_logitem *, uint);
+extern void		   xfs_trans_log_quotaoff_item(struct xfs_trans *,
+					struct xfs_qoff_logitem *);
+
+#endif	/* __XFS_DQUOT_ITEM_H__ */
diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c
new file mode 100644
index 00000000000000..89f2cd656ebfd3
--- /dev/null
+++ b/fs/xfs/quota/xfs_qm.c
@@ -0,0 +1,2848 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.	 Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_clnt.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_alloc.h"
+#include "xfs_dmapi.h"
+#include "xfs_quota.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_bit.h"
+#include "xfs_rtalloc.h"
+#include "xfs_error.h"
+#include "xfs_itable.h"
+#include "xfs_rw.h"
+#include "xfs_acl.h"
+#include "xfs_cap.h"
+#include "xfs_mac.h"
+#include "xfs_attr.h"
+#include "xfs_buf_item.h"
+#include "xfs_trans_space.h"
+#include "xfs_utils.h"
+
+#include "xfs_qm.h"
+
+/*
+ * The global quota manager. There is only one of these for the entire
+ * system, _not_ one per file system. XQM keeps track of the overall
+ * quota functionality, including maintaining the freelist and hash
+ * tables of dquots.
+ */
+mutex_t xfs_Gqm_lock;
+struct xfs_qm	*xfs_Gqm;
+
+kmem_zone_t	*qm_dqzone;
+kmem_zone_t	*qm_dqtrxzone;
+kmem_shaker_t	xfs_qm_shaker;
+
+STATIC void	xfs_qm_list_init(xfs_dqlist_t *, char *, int);
+STATIC void	xfs_qm_list_destroy(xfs_dqlist_t *);
+
+STATIC int	xfs_qm_init_quotainos(xfs_mount_t *);
+STATIC int	xfs_qm_shake(int, unsigned int);
+
+#ifdef DEBUG
+extern mutex_t	qcheck_lock;
+#endif
+
+#ifdef QUOTADEBUG
+#define XQM_LIST_PRINT(l, NXT, title) \
+{ \
+	xfs_dquot_t	*dqp; int i = 0; \
+	cmn_err(CE_DEBUG, "%s (#%d)", title, (int) (l)->qh_nelems); \
+	for (dqp = (l)->qh_next; dqp != NULL; dqp = dqp->NXT) { \
+		cmn_err(CE_DEBUG, "   %d.  \"%d (%s)\"   " \
+				  "bcnt = %d, icnt = %d, refs = %d", \
+			++i, (int) INT_GET(dqp->q_core.d_id, ARCH_CONVERT), \
+			DQFLAGTO_TYPESTR(dqp),	     \
+			(int) INT_GET(dqp->q_core.d_bcount, ARCH_CONVERT), \
+			(int) INT_GET(dqp->q_core.d_icount, ARCH_CONVERT), \
+			(int) dqp->q_nrefs);  } \
+}
+#else
+#define XQM_LIST_PRINT(l, NXT, title) do { } while (0)
+#endif
+
+/*
+ * Initialize the XQM structure.
+ * Note that there is not one quota manager per file system.
+ */
+STATIC struct xfs_qm *
+xfs_Gqm_init(void)
+{
+	xfs_qm_t		*xqm;
+	int			hsize, i;
+
+	xqm = kmem_zalloc(sizeof(xfs_qm_t), KM_SLEEP);
+	ASSERT(xqm);
+
+	/*
+	 * Initialize the dquot hash tables.
+	 */
+	hsize = (DQUOT_HASH_HEURISTIC < XFS_QM_NCSIZE_THRESHOLD) ?
+		XFS_QM_HASHSIZE_LOW : XFS_QM_HASHSIZE_HIGH;
+	xqm->qm_dqhashmask = hsize - 1;
+
+	xqm->qm_usr_dqhtable = (xfs_dqhash_t *)kmem_zalloc(hsize *
+						      sizeof(xfs_dqhash_t),
+						      KM_SLEEP);
+	xqm->qm_grp_dqhtable = (xfs_dqhash_t *)kmem_zalloc(hsize *
+						      sizeof(xfs_dqhash_t),
+						      KM_SLEEP);
+	ASSERT(xqm->qm_usr_dqhtable != NULL);
+	ASSERT(xqm->qm_grp_dqhtable != NULL);
+
+	for (i = 0; i < hsize; i++) {
+		xfs_qm_list_init(&(xqm->qm_usr_dqhtable[i]), "uxdqh", i);
+		xfs_qm_list_init(&(xqm->qm_grp_dqhtable[i]), "gxdqh", i);
+	}
+
+	/*
+	 * Freelist of all dquots of all file systems
+	 */
+	xfs_qm_freelist_init(&(xqm->qm_dqfreelist));
+
+	/*
+	 * dquot zone. we register our own low-memory callback.
+	 */
+	if (!qm_dqzone) {
+		xqm->qm_dqzone = kmem_zone_init(sizeof(xfs_dquot_t),
+						"xfs_dquots");
+		qm_dqzone = xqm->qm_dqzone;
+	} else
+		xqm->qm_dqzone = qm_dqzone;
+
+	xfs_qm_shaker = kmem_shake_register(xfs_qm_shake);
+
+	/*
+	 * The t_dqinfo portion of transactions.
+	 */
+	if (!qm_dqtrxzone) {
+		xqm->qm_dqtrxzone = kmem_zone_init(sizeof(xfs_dquot_acct_t),
+						   "xfs_dqtrx");
+		qm_dqtrxzone = xqm->qm_dqtrxzone;
+	} else
+		xqm->qm_dqtrxzone = qm_dqtrxzone;
+
+	atomic_set(&xqm->qm_totaldquots, 0);
+	xqm->qm_dqfree_ratio = XFS_QM_DQFREE_RATIO;
+	xqm->qm_nrefs = 0;
+#ifdef DEBUG
+	mutex_init(&qcheck_lock, MUTEX_DEFAULT, "qchk");
+#endif
+	return xqm;
+}
+
+/*
+ * Destroy the global quota manager when its reference count goes to zero.
+ */
+void
+xfs_qm_destroy(
+	struct xfs_qm	*xqm)
+{
+	int		hsize, i;
+
+	ASSERT(xqm != NULL);
+	ASSERT(xqm->qm_nrefs == 0);
+	kmem_shake_deregister(xfs_qm_shaker);
+	hsize = xqm->qm_dqhashmask + 1;
+	for (i = 0; i < hsize; i++) {
+		xfs_qm_list_destroy(&(xqm->qm_usr_dqhtable[i]));
+		xfs_qm_list_destroy(&(xqm->qm_grp_dqhtable[i]));
+	}
+	kmem_free(xqm->qm_usr_dqhtable, hsize * sizeof(xfs_dqhash_t));
+	kmem_free(xqm->qm_grp_dqhtable, hsize * sizeof(xfs_dqhash_t));
+	xqm->qm_usr_dqhtable = NULL;
+	xqm->qm_grp_dqhtable = NULL;
+	xqm->qm_dqhashmask = 0;
+	xfs_qm_freelist_destroy(&(xqm->qm_dqfreelist));
+#ifdef DEBUG
+	mutex_destroy(&qcheck_lock);
+#endif
+	kmem_free(xqm, sizeof(xfs_qm_t));
+}
+
+/*
+ * Called at mount time to let XQM know that another file system is
+ * starting quotas. This isn't crucial information as the individual mount
+ * structures are pretty independent, but it helps the XQM keep a
+ * global view of what's going on.
+ */
+/* ARGSUSED */
+STATIC int
+xfs_qm_hold_quotafs_ref(
+	struct xfs_mount *mp)
+{
+	/*
+	 * Need to lock the xfs_Gqm structure for things like this. For example,
+	 * the structure could disappear between the entry to this routine and
+	 * a HOLD operation if not locked.
+	 */
+	XFS_QM_LOCK(xfs_Gqm);
+
+	if (xfs_Gqm == NULL)
+		xfs_Gqm = xfs_Gqm_init();
+	/*
+	 * We can keep a list of all filesystems with quotas mounted for
+	 * debugging and statistical purposes, but ...
+	 * Just take a reference and get out.
+	 */
+	XFS_QM_HOLD(xfs_Gqm);
+	XFS_QM_UNLOCK(xfs_Gqm);
+
+	return 0;
+}
+
+
+/*
+ * Release the reference that a filesystem took at mount time,
+ * so that we know when we need to destroy the entire quota manager.
+ */
+/* ARGSUSED */
+STATIC void
+xfs_qm_rele_quotafs_ref(
+	struct xfs_mount *mp)
+{
+	xfs_dquot_t	*dqp, *nextdqp;
+
+	ASSERT(xfs_Gqm);
+	ASSERT(xfs_Gqm->qm_nrefs > 0);
+
+	/*
+	 * Go thru the freelist and destroy all inactive dquots.
+	 */
+	xfs_qm_freelist_lock(xfs_Gqm);
+
+	for (dqp = xfs_Gqm->qm_dqfreelist.qh_next;
+	     dqp != (xfs_dquot_t *)&(xfs_Gqm->qm_dqfreelist); ) {
+		xfs_dqlock(dqp);
+		nextdqp = dqp->dq_flnext;
+		if (dqp->dq_flags & XFS_DQ_INACTIVE) {
+			ASSERT(dqp->q_mount == NULL);
+			ASSERT(! XFS_DQ_IS_DIRTY(dqp));
+			ASSERT(dqp->HL_PREVP == NULL);
+			ASSERT(dqp->MPL_PREVP == NULL);
+			XQM_FREELIST_REMOVE(dqp);
+			xfs_dqunlock(dqp);
+			xfs_qm_dqdestroy(dqp);
+		} else {
+			xfs_dqunlock(dqp);
+		}
+		dqp = nextdqp;
+	}
+	xfs_qm_freelist_unlock(xfs_Gqm);
+
+	/*
+	 * Destroy the entire XQM. If somebody mounts with quotaon, this'll
+	 * be restarted.
+	 */
+	XFS_QM_LOCK(xfs_Gqm);
+	XFS_QM_RELE(xfs_Gqm);
+	if (xfs_Gqm->qm_nrefs == 0) {
+		xfs_qm_destroy(xfs_Gqm);
+		xfs_Gqm = NULL;
+	}
+	XFS_QM_UNLOCK(xfs_Gqm);
+}
+
+/*
+ * This is called at mount time from xfs_mountfs to initialize the quotainfo
+ * structure and start the global quotamanager (xfs_Gqm) if it hasn't done
+ * so already.	Note that the superblock has not been read in yet.
+ */
+void
+xfs_qm_mount_quotainit(
+	xfs_mount_t	*mp,
+	uint		flags)
+{
+	/*
+	 * User or group quotas has to be on.
+	 */
+	ASSERT(flags & (XFSMNT_UQUOTA | XFSMNT_GQUOTA));
+
+	/*
+	 * Initialize the flags in the mount structure. From this point
+	 * onwards we look at m_qflags to figure out if quotas's ON/OFF, etc.
+	 * Note that we enforce nothing if accounting is off.
+	 * ie.	XFSMNT_*QUOTA must be ON for XFSMNT_*QUOTAENF.
+	 * It isn't necessary to take the quotaoff lock to do this; this is
+	 * called from mount.
+	 */
+	if (flags & XFSMNT_UQUOTA) {
+		mp->m_qflags |= (XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE);
+		if (flags & XFSMNT_UQUOTAENF)
+			mp->m_qflags |= XFS_UQUOTA_ENFD;
+	}
+	if (flags & XFSMNT_GQUOTA) {
+		mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE);
+		if (flags & XFSMNT_GQUOTAENF)
+			mp->m_qflags |= XFS_GQUOTA_ENFD;
+	}
+}
+
+/*
+ * Just destroy the quotainfo structure.
+ */
+void
+xfs_qm_unmount_quotadestroy(
+	xfs_mount_t	*mp)
+{
+	if (mp->m_quotainfo)
+		xfs_qm_destroy_quotainfo(mp);
+}
+
+
+/*
+ * This is called from xfs_mountfs to start quotas and initialize all
+ * necessary data structures like quotainfo.  This is also responsible for
+ * running a quotacheck as necessary.  We are guaranteed that the superblock
+ * is consistently read in at this point.
+ */
+int
+xfs_qm_mount_quotas(
+	xfs_mount_t	*mp,
+	int		mfsi_flags)
+{
+	unsigned long	s;
+	int		error = 0;
+	uint		sbf;
+
+	/*
+	 * If a file system had quotas running earlier, but decided to
+	 * mount without -o quota/uquota/gquota options, revoke the
+	 * quotachecked license, and bail out.
+	 */
+	if (! XFS_IS_QUOTA_ON(mp) &&
+	    (mp->m_sb.sb_qflags & (XFS_UQUOTA_ACCT|XFS_GQUOTA_ACCT))) {
+		mp->m_qflags = 0;
+		goto write_changes;
+	}
+
+	/*
+	 * If quotas on realtime volumes is not supported, we disable
+	 * quotas immediately.
+	 */
+	if (mp->m_sb.sb_rextents) {
+		cmn_err(CE_NOTE,
+			"Cannot turn on quotas for realtime filesystem %s",
+			mp->m_fsname);
+		mp->m_qflags = 0;
+		goto write_changes;
+	}
+
+#if defined(DEBUG) && defined(XFS_LOUD_RECOVERY)
+	cmn_err(CE_NOTE, "Attempting to turn on disk quotas.");
+#endif
+
+	ASSERT(XFS_IS_QUOTA_RUNNING(mp));
+	/*
+	 * Allocate the quotainfo structure inside the mount struct, and
+	 * create quotainode(s), and change/rev superblock if necessary.
+	 */
+	if ((error = xfs_qm_init_quotainfo(mp))) {
+		/*
+		 * We must turn off quotas.
+		 */
+		ASSERT(mp->m_quotainfo == NULL);
+		mp->m_qflags = 0;
+		goto write_changes;
+	}
+	/*
+	 * If any of the quotas are not consistent, do a quotacheck.
+	 */
+	if (XFS_QM_NEED_QUOTACHECK(mp) &&
+		!(mfsi_flags & XFS_MFSI_NO_QUOTACHECK)) {
+#ifdef DEBUG
+		cmn_err(CE_NOTE, "Doing a quotacheck. Please wait.");
+#endif
+		if ((error = xfs_qm_quotacheck(mp))) {
+			/* Quotacheck has failed and quotas have
+			 * been disabled.
+			 */
+			return XFS_ERROR(error);
+		}
+#ifdef DEBUG
+		cmn_err(CE_NOTE, "Done quotacheck.");
+#endif
+	}
+ write_changes:
+	/*
+	 * We actually don't have to acquire the SB_LOCK at all.
+	 * This can only be called from mount, and that's single threaded. XXX
+	 */
+	s = XFS_SB_LOCK(mp);
+	sbf = mp->m_sb.sb_qflags;
+	mp->m_sb.sb_qflags = mp->m_qflags & XFS_MOUNT_QUOTA_ALL;
+	XFS_SB_UNLOCK(mp, s);
+
+	if (sbf != (mp->m_qflags & XFS_MOUNT_QUOTA_ALL)) {
+		if (xfs_qm_write_sb_changes(mp, XFS_SB_QFLAGS)) {
+			/*
+			 * We could only have been turning quotas off.
+			 * We aren't in very good shape actually because
+			 * the incore structures are convinced that quotas are
+			 * off, but the on disk superblock doesn't know that !
+			 */
+			ASSERT(!(XFS_IS_QUOTA_RUNNING(mp)));
+			xfs_fs_cmn_err(CE_ALERT, mp,
+				"XFS mount_quotas: Superblock update failed!");
+		}
+	}
+
+	if (error) {
+		xfs_fs_cmn_err(CE_WARN, mp,
+			"Failed to initialize disk quotas.");
+	}
+	return XFS_ERROR(error);
+}
+
+/*
+ * Called from the vfsops layer.
+ */
+int
+xfs_qm_unmount_quotas(
+	xfs_mount_t	*mp)
+{
+	xfs_inode_t	*uqp, *gqp;
+	int		error = 0;
+
+	/*
+	 * Release the dquots that root inode, et al might be holding,
+	 * before we flush quotas and blow away the quotainfo structure.
+	 */
+	ASSERT(mp->m_rootip);
+	xfs_qm_dqdetach(mp->m_rootip);
+	if (mp->m_rbmip)
+		xfs_qm_dqdetach(mp->m_rbmip);
+	if (mp->m_rsumip)
+		xfs_qm_dqdetach(mp->m_rsumip);
+
+	/*
+	 * Flush out the quota inodes.
+	 */
+	uqp = gqp = NULL;
+	if (mp->m_quotainfo) {
+		if ((uqp = mp->m_quotainfo->qi_uquotaip) != NULL) {
+			xfs_ilock(uqp, XFS_ILOCK_EXCL);
+			xfs_iflock(uqp);
+			error = xfs_iflush(uqp, XFS_IFLUSH_SYNC);
+			xfs_iunlock(uqp, XFS_ILOCK_EXCL);
+			if (unlikely(error == EFSCORRUPTED)) {
+				XFS_ERROR_REPORT("xfs_qm_unmount_quotas(1)",
+						 XFS_ERRLEVEL_LOW, mp);
+				goto out;
+			}
+		}
+		if ((gqp = mp->m_quotainfo->qi_gquotaip) != NULL) {
+			xfs_ilock(gqp, XFS_ILOCK_EXCL);
+			xfs_iflock(gqp);
+			error = xfs_iflush(gqp, XFS_IFLUSH_SYNC);
+			xfs_iunlock(gqp, XFS_ILOCK_EXCL);
+			if (unlikely(error == EFSCORRUPTED)) {
+				XFS_ERROR_REPORT("xfs_qm_unmount_quotas(2)",
+						 XFS_ERRLEVEL_LOW, mp);
+				goto out;
+			}
+		}
+	}
+	if (uqp) {
+		 XFS_PURGE_INODE(uqp);
+		 mp->m_quotainfo->qi_uquotaip = NULL;
+	}
+	if (gqp) {
+		XFS_PURGE_INODE(gqp);
+		mp->m_quotainfo->qi_gquotaip = NULL;
+	}
+out:
+	return XFS_ERROR(error);
+}
+
+/*
+ * Flush all dquots of the given file system to disk. The dquots are
+ * _not_ purged from memory here, just their data written to disk.
+ */
+int
+xfs_qm_dqflush_all(
+	xfs_mount_t	*mp,
+	int		flags)
+{
+	int		recl;
+	xfs_dquot_t	*dqp;
+	int		niters;
+	int		error;
+
+	if (mp->m_quotainfo == NULL)
+		return (0);
+	niters = 0;
+again:
+	xfs_qm_mplist_lock(mp);
+	FOREACH_DQUOT_IN_MP(dqp, mp) {
+		xfs_dqlock(dqp);
+		if (! XFS_DQ_IS_DIRTY(dqp)) {
+			xfs_dqunlock(dqp);
+			continue;
+		}
+		xfs_dqtrace_entry(dqp, "FLUSHALL: DQDIRTY");
+		/* XXX a sentinel would be better */
+		recl = XFS_QI_MPLRECLAIMS(mp);
+		if (! xfs_qm_dqflock_nowait(dqp)) {
+			/*
+			 * If we can't grab the flush lock then check
+			 * to see if the dquot has been flushed delayed
+			 * write.  If so, grab its buffer and send it
+			 * out immediately.  We'll be able to acquire
+			 * the flush lock when the I/O completes.
+			 */
+			xfs_qm_dqflock_pushbuf_wait(dqp);
+		}
+		/*
+		 * Let go of the mplist lock. We don't want to hold it
+		 * across a disk write.
+		 */
+		xfs_qm_mplist_unlock(mp);
+		error = xfs_qm_dqflush(dqp, flags);
+		xfs_dqunlock(dqp);
+		if (error)
+			return (error);
+
+		xfs_qm_mplist_lock(mp);
+		if (recl != XFS_QI_MPLRECLAIMS(mp)) {
+			xfs_qm_mplist_unlock(mp);
+			/* XXX restart limit */
+			goto again;
+		}
+	}
+
+	xfs_qm_mplist_unlock(mp);
+	/* return ! busy */
+	return (0);
+}
+/*
+ * Release the group dquot pointers the user dquots may be
+ * carrying around as a hint. mplist is locked on entry and exit.
+ */
+STATIC void
+xfs_qm_detach_gdquots(
+	xfs_mount_t	*mp)
+{
+	xfs_dquot_t	*dqp, *gdqp;
+	int		nrecl;
+
+ again:
+	ASSERT(XFS_QM_IS_MPLIST_LOCKED(mp));
+	dqp = XFS_QI_MPLNEXT(mp);
+	while (dqp) {
+		xfs_dqlock(dqp);
+		if ((gdqp = dqp->q_gdquot)) {
+			xfs_dqlock(gdqp);
+			dqp->q_gdquot = NULL;
+		}
+		xfs_dqunlock(dqp);
+
+		if (gdqp) {
+			/*
+			 * Can't hold the mplist lock across a dqput.
+			 * XXXmust convert to marker based iterations here.
+			 */
+			nrecl = XFS_QI_MPLRECLAIMS(mp);
+			xfs_qm_mplist_unlock(mp);
+			xfs_qm_dqput(gdqp);
+
+			xfs_qm_mplist_lock(mp);
+			if (nrecl != XFS_QI_MPLRECLAIMS(mp))
+				goto again;
+		}
+		dqp = dqp->MPL_NEXT;
+	}
+}
+
+/*
+ * Go through all the incore dquots of this file system and take them
+ * off the mplist and hashlist, if the dquot type matches the dqtype
+ * parameter. This is used when turning off quota accounting for
+ * users and/or groups, as well as when the filesystem is unmounting.
+ */
+STATIC int
+xfs_qm_dqpurge_int(
+	xfs_mount_t	*mp,
+	uint		flags) /* QUOTAOFF/UMOUNTING/UQUOTA/GQUOTA */
+{
+	xfs_dquot_t	*dqp;
+	uint		dqtype;
+	int		nrecl;
+	xfs_dquot_t	*nextdqp;
+	int		nmisses;
+
+	if (mp->m_quotainfo == NULL)
+		return (0);
+
+	dqtype = (flags & XFS_QMOPT_UQUOTA) ? XFS_DQ_USER : 0;
+	dqtype |= (flags & XFS_QMOPT_GQUOTA) ? XFS_DQ_GROUP : 0;
+
+	xfs_qm_mplist_lock(mp);
+
+	/*
+	 * In the first pass through all incore dquots of this filesystem,
+	 * we release the group dquot pointers the user dquots may be
+	 * carrying around as a hint. We need to do this irrespective of
+	 * what's being turned off.
+	 */
+	xfs_qm_detach_gdquots(mp);
+
+      again:
+	nmisses = 0;
+	ASSERT(XFS_QM_IS_MPLIST_LOCKED(mp));
+	/*
+	 * Try to get rid of all of the unwanted dquots. The idea is to
+	 * get them off mplist and hashlist, but leave them on freelist.
+	 */
+	dqp = XFS_QI_MPLNEXT(mp);
+	while (dqp) {
+		/*
+		 * It's OK to look at the type without taking dqlock here.
+		 * We're holding the mplist lock here, and that's needed for
+		 * a dqreclaim.
+		 */
+		if ((dqp->dq_flags & dqtype) == 0) {
+			dqp = dqp->MPL_NEXT;
+			continue;
+		}
+
+		if (! xfs_qm_dqhashlock_nowait(dqp)) {
+			nrecl = XFS_QI_MPLRECLAIMS(mp);
+			xfs_qm_mplist_unlock(mp);
+			XFS_DQ_HASH_LOCK(dqp->q_hash);
+			xfs_qm_mplist_lock(mp);
+
+			/*
+			 * XXXTheoretically, we can get into a very long
+			 * ping pong game here.
+			 * No one can be adding dquots to the mplist at
+			 * this point, but somebody might be taking things off.
+			 */
+			if (nrecl != XFS_QI_MPLRECLAIMS(mp)) {
+				XFS_DQ_HASH_UNLOCK(dqp->q_hash);
+				goto again;
+			}
+		}
+
+		/*
+		 * Take the dquot off the mplist and hashlist. It may remain on
+		 * freelist in INACTIVE state.
+		 */
+		nextdqp = dqp->MPL_NEXT;
+		nmisses += xfs_qm_dqpurge(dqp, flags);
+		dqp = nextdqp;
+	}
+	xfs_qm_mplist_unlock(mp);
+	return nmisses;
+}
+
+int
+xfs_qm_dqpurge_all(
+	xfs_mount_t	*mp,
+	uint		flags)
+{
+	int		ndquots;
+
+	/*
+	 * Purge the dquot cache.
+	 * None of the dquots should really be busy at this point.
+	 */
+	if (mp->m_quotainfo) {
+		while ((ndquots = xfs_qm_dqpurge_int(mp, flags))) {
+			delay(ndquots * 10);
+		}
+	}
+	return 0;
+}
+
+STATIC int
+xfs_qm_dqattach_one(
+	xfs_inode_t	*ip,
+	xfs_dqid_t	id,
+	uint		type,
+	uint		doalloc,
+	uint		dolock,
+	xfs_dquot_t	*udqhint, /* hint */
+	xfs_dquot_t	**IO_idqpp)
+{
+	xfs_dquot_t	*dqp;
+	int		error;
+
+	ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
+	error = 0;
+	/*
+	 * See if we already have it in the inode itself. IO_idqpp is
+	 * &i_udquot or &i_gdquot. This made the code look weird, but
+	 * made the logic a lot simpler.
+	 */
+	if ((dqp = *IO_idqpp)) {
+		if (dolock)
+			xfs_dqlock(dqp);
+		xfs_dqtrace_entry(dqp, "DQATTACH: found in ip");
+		goto done;
+	}
+
+	/*
+	 * udqhint is the i_udquot field in inode, and is non-NULL only
+	 * when the type arg is XFS_DQ_GROUP. Its purpose is to save a
+	 * lookup by dqid (xfs_qm_dqget) by caching a group dquot inside
+	 * the user dquot.
+	 */
+	ASSERT(!udqhint || type == XFS_DQ_GROUP);
+	if (udqhint && !dolock)
+		xfs_dqlock(udqhint);
+
+	/*
+	 * No need to take dqlock to look at the id.
+	 * The ID can't change until it gets reclaimed, and it won't
+	 * be reclaimed as long as we have a ref from inode and we hold
+	 * the ilock.
+	 */
+	if (udqhint &&
+	    (dqp = udqhint->q_gdquot) &&
+	    (INT_GET(dqp->q_core.d_id, ARCH_CONVERT) == id)) {
+		ASSERT(XFS_DQ_IS_LOCKED(udqhint));
+		xfs_dqlock(dqp);
+		XFS_DQHOLD(dqp);
+		ASSERT(*IO_idqpp == NULL);
+		*IO_idqpp = dqp;
+		if (!dolock) {
+			xfs_dqunlock(dqp);
+			xfs_dqunlock(udqhint);
+		}
+		goto done;
+	}
+	/*
+	 * We can't hold a dquot lock when we call the dqget code.
+	 * We'll deadlock in no time, because of (not conforming to)
+	 * lock ordering - the inodelock comes before any dquot lock,
+	 * and we may drop and reacquire the ilock in xfs_qm_dqget().
+	 */
+	if (udqhint)
+		xfs_dqunlock(udqhint);
+	/*
+	 * Find the dquot from somewhere. This bumps the
+	 * reference count of dquot and returns it locked.
+	 * This can return ENOENT if dquot didn't exist on
+	 * disk and we didn't ask it to allocate;
+	 * ESRCH if quotas got turned off suddenly.
+	 */
+	if ((error = xfs_qm_dqget(ip->i_mount, ip, id, type,
+				 doalloc|XFS_QMOPT_DOWARN, &dqp))) {
+		if (udqhint && dolock)
+			xfs_dqlock(udqhint);
+		goto done;
+	}
+
+	xfs_dqtrace_entry(dqp, "DQATTACH: found by dqget");
+	/*
+	 * dqget may have dropped and re-acquired the ilock, but it guarantees
+	 * that the dquot returned is the one that should go in the inode.
+	 */
+	*IO_idqpp = dqp;
+	ASSERT(dqp);
+	ASSERT(XFS_DQ_IS_LOCKED(dqp));
+	if (! dolock) {
+		xfs_dqunlock(dqp);
+		goto done;
+	}
+	if (! udqhint)
+		goto done;
+
+	ASSERT(udqhint);
+	ASSERT(dolock);
+	ASSERT(XFS_DQ_IS_LOCKED(dqp));
+	if (! xfs_qm_dqlock_nowait(udqhint)) {
+		xfs_dqunlock(dqp);
+		xfs_dqlock(udqhint);
+		xfs_dqlock(dqp);
+	}
+      done:
+#ifdef QUOTADEBUG
+	if (udqhint) {
+		if (dolock)
+			ASSERT(XFS_DQ_IS_LOCKED(udqhint));
+	}
+	if (! error) {
+		if (dolock)
+			ASSERT(XFS_DQ_IS_LOCKED(dqp));
+	}
+#endif
+	return (error);
+}
+
+
+/*
+ * Given a udquot and gdquot, attach a ptr to the group dquot in the
+ * udquot as a hint for future lookups. The idea sounds simple, but the
+ * execution isn't, because the udquot might have a group dquot attached
+ * already and getting rid of that gets us into lock ordering contraints.
+ * The process is complicated more by the fact that the dquots may or may not
+ * be locked on entry.
+ */
+STATIC void
+xfs_qm_dqattach_grouphint(
+	xfs_dquot_t	*udq,
+	xfs_dquot_t	*gdq,
+	uint		locked)
+{
+	xfs_dquot_t	*tmp;
+
+#ifdef QUOTADEBUG
+	if (locked) {
+		ASSERT(XFS_DQ_IS_LOCKED(udq));
+		ASSERT(XFS_DQ_IS_LOCKED(gdq));
+	}
+#endif
+	if (! locked)
+		xfs_dqlock(udq);
+
+	if ((tmp = udq->q_gdquot)) {
+		if (tmp == gdq) {
+			if (! locked)
+				xfs_dqunlock(udq);
+			return;
+		}
+
+		udq->q_gdquot = NULL;
+		/*
+		 * We can't keep any dqlocks when calling dqrele,
+		 * because the freelist lock comes before dqlocks.
+		 */
+		xfs_dqunlock(udq);
+		if (locked)
+			xfs_dqunlock(gdq);
+		/*
+		 * we took a hard reference once upon a time in dqget,
+		 * so give it back when the udquot no longer points at it
+		 * dqput() does the unlocking of the dquot.
+		 */
+		xfs_qm_dqrele(tmp);
+
+		xfs_dqlock(udq);
+		xfs_dqlock(gdq);
+
+	} else {
+		ASSERT(XFS_DQ_IS_LOCKED(udq));
+		if (! locked) {
+			xfs_dqlock(gdq);
+		}
+	}
+
+	ASSERT(XFS_DQ_IS_LOCKED(udq));
+	ASSERT(XFS_DQ_IS_LOCKED(gdq));
+	/*
+	 * Somebody could have attached a gdquot here,
+	 * when we dropped the uqlock. If so, just do nothing.
+	 */
+	if (udq->q_gdquot == NULL) {
+		XFS_DQHOLD(gdq);
+		udq->q_gdquot = gdq;
+	}
+	if (! locked) {
+		xfs_dqunlock(gdq);
+		xfs_dqunlock(udq);
+	}
+}
+
+
+/*
+ * Given a locked inode, attach dquot(s) to it, taking UQUOTAON / GQUOTAON
+ * in to account.
+ * If XFS_QMOPT_DQALLOC, the dquot(s) will be allocated if needed.
+ * If XFS_QMOPT_DQLOCK, the dquot(s) will be returned locked. This option pretty
+ * much made this code a complete mess, but it has been pretty useful.
+ * If XFS_QMOPT_ILOCKED, then inode sent is already locked EXCL.
+ * Inode may get unlocked and relocked in here, and the caller must deal with
+ * the consequences.
+ */
+int
+xfs_qm_dqattach(
+	xfs_inode_t	*ip,
+	uint		flags)
+{
+	xfs_mount_t	*mp = ip->i_mount;
+	uint		nquotas = 0;
+	int		error = 0;
+
+	if ((! XFS_IS_QUOTA_ON(mp)) ||
+	    (! XFS_NOT_DQATTACHED(mp, ip)) ||
+	    (ip->i_ino == mp->m_sb.sb_uquotino) ||
+	    (ip->i_ino == mp->m_sb.sb_gquotino))
+		return (0);
+
+	ASSERT((flags & XFS_QMOPT_ILOCKED) == 0 ||
+	       XFS_ISLOCKED_INODE_EXCL(ip));
+
+	if (! (flags & XFS_QMOPT_ILOCKED))
+		xfs_ilock(ip, XFS_ILOCK_EXCL);
+
+	if (XFS_IS_UQUOTA_ON(mp)) {
+		error = xfs_qm_dqattach_one(ip, ip->i_d.di_uid, XFS_DQ_USER,
+						flags & XFS_QMOPT_DQALLOC,
+						flags & XFS_QMOPT_DQLOCK,
+						NULL, &ip->i_udquot);
+		if (error)
+			goto done;
+		nquotas++;
+	}
+	ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
+	if (XFS_IS_GQUOTA_ON(mp)) {
+		error = xfs_qm_dqattach_one(ip, ip->i_d.di_gid, XFS_DQ_GROUP,
+						flags & XFS_QMOPT_DQALLOC,
+						flags & XFS_QMOPT_DQLOCK,
+						ip->i_udquot, &ip->i_gdquot);
+		/*
+		 * Don't worry about the udquot that we may have
+		 * attached above. It'll get detached, if not already.
+		 */
+		if (error)
+			goto done;
+		nquotas++;
+	}
+
+	/*
+	 * Attach this group quota to the user quota as a hint.
+	 * This WON'T, in general, result in a thrash.
+	 */
+	if (nquotas == 2) {
+		ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
+		ASSERT(ip->i_udquot);
+		ASSERT(ip->i_gdquot);
+
+		/*
+		 * We may or may not have the i_udquot locked at this point,
+		 * but this check is OK since we don't depend on the i_gdquot to
+		 * be accurate 100% all the time. It is just a hint, and this
+		 * will succeed in general.
+		 */
+		if (ip->i_udquot->q_gdquot == ip->i_gdquot)
+			goto done;
+		/*
+		 * Attach i_gdquot to the gdquot hint inside the i_udquot.
+		 */
+		xfs_qm_dqattach_grouphint(ip->i_udquot, ip->i_gdquot,
+					 flags & XFS_QMOPT_DQLOCK);
+	}
+
+      done:
+
+#ifdef QUOTADEBUG
+	if (! error) {
+		if (ip->i_udquot) {
+			if (flags & XFS_QMOPT_DQLOCK)
+				ASSERT(XFS_DQ_IS_LOCKED(ip->i_udquot));
+		}
+		if (ip->i_gdquot) {
+			if (flags & XFS_QMOPT_DQLOCK)
+				ASSERT(XFS_DQ_IS_LOCKED(ip->i_gdquot));
+		}
+		if (XFS_IS_UQUOTA_ON(mp))
+			ASSERT(ip->i_udquot);
+		if (XFS_IS_GQUOTA_ON(mp))
+			ASSERT(ip->i_gdquot);
+	}
+#endif
+
+	if (! (flags & XFS_QMOPT_ILOCKED))
+		xfs_iunlock(ip, XFS_ILOCK_EXCL);
+
+#ifdef QUOTADEBUG
+	else
+		ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
+#endif
+	return (error);
+}
+
+/*
+ * Release dquots (and their references) if any.
+ * The inode should be locked EXCL except when this's called by
+ * xfs_ireclaim.
+ */
+void
+xfs_qm_dqdetach(
+	xfs_inode_t	*ip)
+{
+	if (!(ip->i_udquot || ip->i_gdquot))
+		return;
+
+	ASSERT(ip->i_ino != ip->i_mount->m_sb.sb_uquotino);
+	ASSERT(ip->i_ino != ip->i_mount->m_sb.sb_gquotino);
+	if (ip->i_udquot)
+		xfs_dqtrace_entry_ino(ip->i_udquot, "DQDETTACH", ip);
+	if (ip->i_udquot) {
+		xfs_qm_dqrele(ip->i_udquot);
+		ip->i_udquot = NULL;
+	}
+	if (ip->i_gdquot) {
+		xfs_qm_dqrele(ip->i_gdquot);
+		ip->i_gdquot = NULL;
+	}
+}
+
+/*
+ * This is called by VFS_SYNC and flags arg determines the caller,
+ * and its motives, as done in xfs_sync.
+ *
+ * vfs_sync: SYNC_FSDATA|SYNC_ATTR|SYNC_BDFLUSH 0x31
+ * syscall sync: SYNC_FSDATA|SYNC_ATTR|SYNC_DELWRI 0x25
+ * umountroot : SYNC_WAIT | SYNC_CLOSE | SYNC_ATTR | SYNC_FSDATA
+ */
+
+int
+xfs_qm_sync(
+	xfs_mount_t	*mp,
+	short		flags)
+{
+	int		recl, restarts;
+	xfs_dquot_t	*dqp;
+	uint		flush_flags;
+	boolean_t	nowait;
+	int		error;
+
+	restarts = 0;
+	/*
+	 * We won't block unless we are asked to.
+	 */
+	nowait = (boolean_t)(flags & SYNC_BDFLUSH || (flags & SYNC_WAIT) == 0);
+
+  again:
+	xfs_qm_mplist_lock(mp);
+	/*
+	 * dqpurge_all() also takes the mplist lock and iterate thru all dquots
+	 * in quotaoff. However, if the QUOTA_ACTIVE bits are not cleared
+	 * when we have the mplist lock, we know that dquots will be consistent
+	 * as long as we have it locked.
+	 */
+	if (! XFS_IS_QUOTA_ON(mp)) {
+		xfs_qm_mplist_unlock(mp);
+		return (0);
+	}
+	FOREACH_DQUOT_IN_MP(dqp, mp) {
+		/*
+		 * If this is vfs_sync calling, then skip the dquots that
+		 * don't 'seem' to be dirty. ie. don't acquire dqlock.
+		 * This is very similar to what xfs_sync does with inodes.
+		 */
+		if (flags & SYNC_BDFLUSH) {
+			if (! XFS_DQ_IS_DIRTY(dqp))
+				continue;
+		}
+
+		if (nowait) {
+			/*
+			 * Try to acquire the dquot lock. We are NOT out of
+			 * lock order, but we just don't want to wait for this
+			 * lock, unless somebody wanted us to.
+			 */
+			if (! xfs_qm_dqlock_nowait(dqp))
+				continue;
+		} else {
+			xfs_dqlock(dqp);
+		}
+
+		/*
+		 * Now, find out for sure if this dquot is dirty or not.
+		 */
+		if (! XFS_DQ_IS_DIRTY(dqp)) {
+			xfs_dqunlock(dqp);
+			continue;
+		}
+
+		/* XXX a sentinel would be better */
+		recl = XFS_QI_MPLRECLAIMS(mp);
+		if (! xfs_qm_dqflock_nowait(dqp)) {
+			if (nowait) {
+				xfs_dqunlock(dqp);
+				continue;
+			}
+			/*
+			 * If we can't grab the flush lock then if the caller
+			 * really wanted us to give this our best shot,
+			 * see if we can give a push to the buffer before we wait
+			 * on the flush lock. At this point, we know that
+			 * eventhough the dquot is being flushed,
+			 * it has (new) dirty data.
+			 */
+			xfs_qm_dqflock_pushbuf_wait(dqp);
+		}
+		/*
+		 * Let go of the mplist lock. We don't want to hold it
+		 * across a disk write
+		 */
+		flush_flags = (nowait) ? XFS_QMOPT_DELWRI : XFS_QMOPT_SYNC;
+		xfs_qm_mplist_unlock(mp);
+		xfs_dqtrace_entry(dqp, "XQM_SYNC: DQFLUSH");
+		error = xfs_qm_dqflush(dqp, flush_flags);
+		xfs_dqunlock(dqp);
+		if (error && XFS_FORCED_SHUTDOWN(mp))
+			return(0);	/* Need to prevent umount failure */
+		else if (error)
+			return (error);
+
+		xfs_qm_mplist_lock(mp);
+		if (recl != XFS_QI_MPLRECLAIMS(mp)) {
+			if (++restarts >= XFS_QM_SYNC_MAX_RESTARTS)
+				break;
+
+			xfs_qm_mplist_unlock(mp);
+			goto again;
+		}
+	}
+
+	xfs_qm_mplist_unlock(mp);
+	return (0);
+}
+
+
+/*
+ * This initializes all the quota information that's kept in the
+ * mount structure
+ */
+int
+xfs_qm_init_quotainfo(
+	xfs_mount_t	*mp)
+{
+	xfs_quotainfo_t *qinf;
+	int		error;
+	xfs_dquot_t	*dqp;
+
+	ASSERT(XFS_IS_QUOTA_RUNNING(mp));
+
+	/*
+	 * Tell XQM that we exist as soon as possible.
+	 */
+	if ((error = xfs_qm_hold_quotafs_ref(mp))) {
+		return (error);
+	}
+
+	qinf = mp->m_quotainfo = kmem_zalloc(sizeof(xfs_quotainfo_t), KM_SLEEP);
+
+	/*
+	 * See if quotainodes are setup, and if not, allocate them,
+	 * and change the superblock accordingly.
+	 */
+	if ((error = xfs_qm_init_quotainos(mp))) {
+		kmem_free(qinf, sizeof(xfs_quotainfo_t));
+		mp->m_quotainfo = NULL;
+		return (error);
+	}
+
+	spinlock_init(&qinf->qi_pinlock, "xfs_qinf_pin");
+	xfs_qm_list_init(&qinf->qi_dqlist, "mpdqlist", 0);
+	qinf->qi_dqreclaims = 0;
+
+	/* mutex used to serialize quotaoffs */
+	mutex_init(&qinf->qi_quotaofflock, MUTEX_DEFAULT, "qoff");
+
+	/* Precalc some constants */
+	qinf->qi_dqchunklen = XFS_FSB_TO_BB(mp, XFS_DQUOT_CLUSTER_SIZE_FSB);
+	ASSERT(qinf->qi_dqchunklen);
+	qinf->qi_dqperchunk = BBTOB(qinf->qi_dqchunklen);
+	do_div(qinf->qi_dqperchunk, sizeof(xfs_dqblk_t));
+
+	mp->m_qflags |= (mp->m_sb.sb_qflags & XFS_ALL_QUOTA_CHKD);
+
+	/*
+	 * We try to get the limits from the superuser's limits fields.
+	 * This is quite hacky, but it is standard quota practice.
+	 * We look at the USR dquot with id == 0 first, but if user quotas
+	 * are not enabled we goto the GRP dquot with id == 0.
+	 * We don't really care to keep separate default limits for user
+	 * and group quotas, at least not at this point.
+	 */
+	error = xfs_qm_dqget(mp, NULL, (xfs_dqid_t)0,
+			     (XFS_IS_UQUOTA_RUNNING(mp)) ?
+			     XFS_DQ_USER : XFS_DQ_GROUP,
+			     XFS_QMOPT_DQSUSER|XFS_QMOPT_DOWARN,
+			     &dqp);
+	if (! error) {
+		xfs_disk_dquot_t	*ddqp = &dqp->q_core;
+
+		/*
+		 * The warnings and timers set the grace period given to
+		 * a user or group before he or she can not perform any
+		 * more writing. If it is zero, a default is used.
+		 */
+		qinf->qi_btimelimit =
+				INT_GET(ddqp->d_btimer, ARCH_CONVERT) ?
+				INT_GET(ddqp->d_btimer, ARCH_CONVERT) :
+				XFS_QM_BTIMELIMIT;
+		qinf->qi_itimelimit =
+				INT_GET(ddqp->d_itimer, ARCH_CONVERT) ?
+				INT_GET(ddqp->d_itimer, ARCH_CONVERT) :
+				XFS_QM_ITIMELIMIT;
+		qinf->qi_rtbtimelimit =
+				INT_GET(ddqp->d_rtbtimer, ARCH_CONVERT) ?
+				INT_GET(ddqp->d_rtbtimer, ARCH_CONVERT) :
+				XFS_QM_RTBTIMELIMIT;
+		qinf->qi_bwarnlimit =
+				INT_GET(ddqp->d_bwarns, ARCH_CONVERT) ?
+				INT_GET(ddqp->d_bwarns, ARCH_CONVERT) :
+				XFS_QM_BWARNLIMIT;
+		qinf->qi_iwarnlimit =
+				INT_GET(ddqp->d_iwarns, ARCH_CONVERT) ?
+				INT_GET(ddqp->d_iwarns, ARCH_CONVERT) :
+				XFS_QM_IWARNLIMIT;
+		qinf->qi_bhardlimit =
+				INT_GET(ddqp->d_blk_hardlimit, ARCH_CONVERT);
+		qinf->qi_bsoftlimit =
+				INT_GET(ddqp->d_blk_softlimit, ARCH_CONVERT);
+		qinf->qi_ihardlimit =
+				INT_GET(ddqp->d_ino_hardlimit, ARCH_CONVERT);
+		qinf->qi_isoftlimit =
+				INT_GET(ddqp->d_ino_softlimit, ARCH_CONVERT);
+		qinf->qi_rtbhardlimit =
+				INT_GET(ddqp->d_rtb_hardlimit, ARCH_CONVERT);
+		qinf->qi_rtbsoftlimit =
+				INT_GET(ddqp->d_rtb_softlimit, ARCH_CONVERT);
+ 
+		/*
+		 * We sent the XFS_QMOPT_DQSUSER flag to dqget because
+		 * we don't want this dquot cached. We haven't done a
+		 * quotacheck yet, and quotacheck doesn't like incore dquots.
+		 */
+		xfs_qm_dqdestroy(dqp);
+	} else {
+		qinf->qi_btimelimit = XFS_QM_BTIMELIMIT;
+		qinf->qi_itimelimit = XFS_QM_ITIMELIMIT;
+		qinf->qi_rtbtimelimit = XFS_QM_RTBTIMELIMIT;
+		qinf->qi_bwarnlimit = XFS_QM_BWARNLIMIT;
+		qinf->qi_iwarnlimit = XFS_QM_IWARNLIMIT;
+	}
+
+	return (0);
+}
+
+
+/*
+ * Gets called when unmounting a filesystem or when all quotas get
+ * turned off.
+ * This purges the quota inodes, destroys locks and frees itself.
+ */
+void
+xfs_qm_destroy_quotainfo(
+	xfs_mount_t	*mp)
+{
+	xfs_quotainfo_t *qi;
+
+	qi = mp->m_quotainfo;
+	ASSERT(qi != NULL);
+	ASSERT(xfs_Gqm != NULL);
+
+	/*
+	 * Release the reference that XQM kept, so that we know
+	 * when the XQM structure should be freed. We cannot assume
+	 * that xfs_Gqm is non-null after this point.
+	 */
+	xfs_qm_rele_quotafs_ref(mp);
+
+	spinlock_destroy(&qi->qi_pinlock);
+	xfs_qm_list_destroy(&qi->qi_dqlist);
+
+	if (qi->qi_uquotaip) {
+		XFS_PURGE_INODE(qi->qi_uquotaip);
+		qi->qi_uquotaip = NULL; /* paranoia */
+	}
+	if (qi->qi_gquotaip) {
+		XFS_PURGE_INODE(qi->qi_gquotaip);
+		qi->qi_gquotaip = NULL;
+	}
+	mutex_destroy(&qi->qi_quotaofflock);
+	kmem_free(qi, sizeof(xfs_quotainfo_t));
+	mp->m_quotainfo = NULL;
+}
+
+
+
+/* ------------------- PRIVATE STATIC FUNCTIONS ----------------------- */
+
+/* ARGSUSED */
+STATIC void
+xfs_qm_list_init(
+	xfs_dqlist_t	*list,
+	char		*str,
+	int		n)
+{
+	mutex_init(&list->qh_lock, MUTEX_DEFAULT, str);
+	list->qh_next = NULL;
+	list->qh_version = 0;
+	list->qh_nelems = 0;
+}
+
+STATIC void
+xfs_qm_list_destroy(
+	xfs_dqlist_t	*list)
+{
+	mutex_destroy(&(list->qh_lock));
+}
+
+
+/*
+ * Stripped down version of dqattach. This doesn't attach, or even look at the
+ * dquots attached to the inode. The rationale is that there won't be any
+ * attached at the time this is called from quotacheck.
+ */
+STATIC int
+xfs_qm_dqget_noattach(
+	xfs_inode_t	*ip,
+	xfs_dquot_t	**O_udqpp,
+	xfs_dquot_t	**O_gdqpp)
+{
+	int		error;
+	xfs_mount_t	*mp;
+	xfs_dquot_t	*udqp, *gdqp;
+
+	ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
+	mp = ip->i_mount;
+	udqp = NULL;
+	gdqp = NULL;
+
+	if (XFS_IS_UQUOTA_ON(mp)) {
+		ASSERT(ip->i_udquot == NULL);
+		/*
+		 * We want the dquot allocated if it doesn't exist.
+		 */
+		if ((error = xfs_qm_dqget(mp, ip, ip->i_d.di_uid, XFS_DQ_USER,
+					 XFS_QMOPT_DQALLOC | XFS_QMOPT_DOWARN,
+					 &udqp))) {
+			/*
+			 * Shouldn't be able to turn off quotas here.
+			 */
+			ASSERT(error != ESRCH);
+			ASSERT(error != ENOENT);
+			return (error);
+		}
+		ASSERT(udqp);
+	}
+
+	if (XFS_IS_GQUOTA_ON(mp)) {
+		ASSERT(ip->i_gdquot == NULL);
+		if (udqp)
+			xfs_dqunlock(udqp);
+		if ((error = xfs_qm_dqget(mp, ip, ip->i_d.di_gid, XFS_DQ_GROUP,
+					 XFS_QMOPT_DQALLOC|XFS_QMOPT_DOWARN,
+					 &gdqp))) {
+			if (udqp)
+				xfs_qm_dqrele(udqp);
+			ASSERT(error != ESRCH);
+			ASSERT(error != ENOENT);
+			return (error);
+		}
+		ASSERT(gdqp);
+
+		/* Reacquire the locks in the right order */
+		if (udqp) {
+			if (! xfs_qm_dqlock_nowait(udqp)) {
+				xfs_dqunlock(gdqp);
+				xfs_dqlock(udqp);
+				xfs_dqlock(gdqp);
+			}
+		}
+	}
+
+	*O_udqpp = udqp;
+	*O_gdqpp = gdqp;
+
+#ifdef QUOTADEBUG
+	if (udqp) ASSERT(XFS_DQ_IS_LOCKED(udqp));
+	if (gdqp) ASSERT(XFS_DQ_IS_LOCKED(gdqp));
+#endif
+	return (0);
+}
+
+/*
+ * Create an inode and return with a reference already taken, but unlocked
+ * This is how we create quota inodes
+ */
+STATIC int
+xfs_qm_qino_alloc(
+	xfs_mount_t	*mp,
+	xfs_inode_t	**ip,
+	__int64_t	sbfields,
+	uint		flags)
+{
+	xfs_trans_t	*tp;
+	int		error;
+	unsigned long s;
+	cred_t		zerocr;
+	int		committed;
+
+	tp = xfs_trans_alloc(mp,XFS_TRANS_QM_QINOCREATE);
+	if ((error = xfs_trans_reserve(tp,
+				      XFS_QM_QINOCREATE_SPACE_RES(mp),
+				      XFS_CREATE_LOG_RES(mp), 0,
+				      XFS_TRANS_PERM_LOG_RES,
+				      XFS_CREATE_LOG_COUNT))) {
+		xfs_trans_cancel(tp, 0);
+		return (error);
+	}
+	memset(&zerocr, 0, sizeof(zerocr));
+
+	if ((error = xfs_dir_ialloc(&tp, mp->m_rootip, S_IFREG, 1, 0,
+				   &zerocr, 0, 1, ip, &committed))) {
+		xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES |
+				 XFS_TRANS_ABORT);
+		return (error);
+	}
+
+	/*
+	 * Keep an extra reference to this quota inode. This inode is
+	 * locked exclusively and joined to the transaction already.
+	 */
+	ASSERT(XFS_ISLOCKED_INODE_EXCL(*ip));
+	VN_HOLD(XFS_ITOV((*ip)));
+
+	/*
+	 * Make the changes in the superblock, and log those too.
+	 * sbfields arg may contain fields other than *QUOTINO;
+	 * VERSIONNUM for example.
+	 */
+	s = XFS_SB_LOCK(mp);
+	if (flags & XFS_QMOPT_SBVERSION) {
+#if defined(DEBUG) && defined(XFS_LOUD_RECOVERY)
+		unsigned oldv = mp->m_sb.sb_versionnum;
+#endif
+		ASSERT(!XFS_SB_VERSION_HASQUOTA(&mp->m_sb));
+		ASSERT((sbfields & (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO |
+				   XFS_SB_GQUOTINO | XFS_SB_QFLAGS)) ==
+		       (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO |
+			XFS_SB_GQUOTINO | XFS_SB_QFLAGS));
+
+		XFS_SB_VERSION_ADDQUOTA(&mp->m_sb);
+		mp->m_sb.sb_uquotino = NULLFSINO;
+		mp->m_sb.sb_gquotino = NULLFSINO;
+
+		/* qflags will get updated _after_ quotacheck */
+		mp->m_sb.sb_qflags = 0;
+#if defined(DEBUG) && defined(XFS_LOUD_RECOVERY)
+		cmn_err(CE_NOTE,
+			"Old superblock version %x, converting to %x.",
+			oldv, mp->m_sb.sb_versionnum);
+#endif
+	}
+	if (flags & XFS_QMOPT_UQUOTA)
+		mp->m_sb.sb_uquotino = (*ip)->i_ino;
+	else
+		mp->m_sb.sb_gquotino = (*ip)->i_ino;
+	XFS_SB_UNLOCK(mp, s);
+	xfs_mod_sb(tp, sbfields);
+
+	if ((error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES,
+				     NULL))) {
+		xfs_fs_cmn_err(CE_ALERT, mp, "XFS qino_alloc failed!");
+		return (error);
+	}
+	return (0);
+}
+
+
+STATIC int
+xfs_qm_reset_dqcounts(
+	xfs_mount_t	*mp,
+	xfs_buf_t	*bp,
+	xfs_dqid_t	id,
+	uint		type)
+{
+	xfs_disk_dquot_t	*ddq;
+	int			j;
+
+	xfs_buftrace("RESET DQUOTS", bp);
+	/*
+	 * Reset all counters and timers. They'll be
+	 * started afresh by xfs_qm_quotacheck.
+	 */
+#ifdef DEBUG
+	j = XFS_FSB_TO_B(mp, XFS_DQUOT_CLUSTER_SIZE_FSB);
+	do_div(j, sizeof(xfs_dqblk_t));
+	ASSERT(XFS_QM_DQPERBLK(mp) == j);
+#endif
+	ddq = (xfs_disk_dquot_t *)XFS_BUF_PTR(bp);
+	for (j = 0; j < XFS_QM_DQPERBLK(mp); j++) {
+		/*
+		 * Do a sanity check, and if needed, repair the dqblk. Don't
+		 * output any warnings because it's perfectly possible to
+		 * find unitialized dquot blks. See comment in xfs_qm_dqcheck.
+		 */
+		(void) xfs_qm_dqcheck(ddq, id+j, type, XFS_QMOPT_DQREPAIR,
+				      "xfs_quotacheck");
+		INT_SET(ddq->d_bcount, ARCH_CONVERT, 0ULL);
+		INT_SET(ddq->d_icount, ARCH_CONVERT, 0ULL);
+		INT_SET(ddq->d_rtbcount, ARCH_CONVERT, 0ULL);
+		INT_SET(ddq->d_btimer, ARCH_CONVERT, (time_t)0);
+		INT_SET(ddq->d_itimer, ARCH_CONVERT, (time_t)0);
+		INT_SET(ddq->d_bwarns, ARCH_CONVERT, 0UL);
+		INT_SET(ddq->d_iwarns, ARCH_CONVERT, 0UL);
+		ddq = (xfs_disk_dquot_t *) ((xfs_dqblk_t *)ddq + 1);
+	}
+
+	return (0);
+}
+
+STATIC int
+xfs_qm_dqiter_bufs(
+	xfs_mount_t	*mp,
+	xfs_dqid_t	firstid,
+	xfs_fsblock_t	bno,
+	xfs_filblks_t	blkcnt,
+	uint		flags)
+{
+	xfs_buf_t	*bp;
+	int		error;
+	int		notcommitted;
+	int		incr;
+
+	ASSERT(blkcnt > 0);
+	notcommitted = 0;
+	incr = (blkcnt > XFS_QM_MAX_DQCLUSTER_LOGSZ) ?
+		XFS_QM_MAX_DQCLUSTER_LOGSZ : blkcnt;
+	error = 0;
+
+	/*
+	 * Blkcnt arg can be a very big number, and might even be
+	 * larger than the log itself. So, we have to break it up into
+	 * manageable-sized transactions.
+	 * Note that we don't start a permanent transaction here; we might
+	 * not be able to get a log reservation for the whole thing up front,
+	 * and we don't really care to either, because we just discard
+	 * everything if we were to crash in the middle of this loop.
+	 */
+	while (blkcnt--) {
+		error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp,
+			      XFS_FSB_TO_DADDR(mp, bno),
+			      (int)XFS_QI_DQCHUNKLEN(mp), 0, &bp);
+		if (error)
+			break;
+
+		(void) xfs_qm_reset_dqcounts(mp, bp, firstid,
+					     flags & XFS_QMOPT_UQUOTA ?
+					     XFS_DQ_USER : XFS_DQ_GROUP);
+		xfs_bdwrite(mp, bp);
+		/*
+		 * goto the next block.
+		 */
+		bno++;
+		firstid += XFS_QM_DQPERBLK(mp);
+	}
+	return (error);
+}
+
+/*
+ * Iterate over all allocated USR/GRP dquots in the system, calling a
+ * caller supplied function for every chunk of dquots that we find.
+ */
+STATIC int
+xfs_qm_dqiterate(
+	xfs_mount_t	*mp,
+	xfs_inode_t	*qip,
+	uint		flags)
+{
+	xfs_bmbt_irec_t		*map;
+	int			i, nmaps;	/* number of map entries */
+	int			error;		/* return value */
+	xfs_fileoff_t		lblkno;
+	xfs_filblks_t		maxlblkcnt;
+	xfs_dqid_t		firstid;
+	xfs_fsblock_t		rablkno;
+	xfs_filblks_t		rablkcnt;
+
+	error = 0;
+	/*
+	 * This looks racey, but we can't keep an inode lock across a
+	 * trans_reserve. But, this gets called during quotacheck, and that
+	 * happens only at mount time which is single threaded.
+	 */
+	if (qip->i_d.di_nblocks == 0)
+		return (0);
+
+	map = kmem_alloc(XFS_DQITER_MAP_SIZE * sizeof(*map), KM_SLEEP);
+
+	lblkno = 0;
+	maxlblkcnt = XFS_B_TO_FSB(mp, (xfs_ufsize_t)XFS_MAXIOFFSET(mp));
+	do {
+		nmaps = XFS_DQITER_MAP_SIZE;
+		/*
+		 * We aren't changing the inode itself. Just changing
+		 * some of its data. No new blocks are added here, and
+		 * the inode is never added to the transaction.
+		 */
+		xfs_ilock(qip, XFS_ILOCK_SHARED);
+		error = xfs_bmapi(NULL, qip, lblkno,
+				  maxlblkcnt - lblkno,
+				  XFS_BMAPI_METADATA,
+				  NULL,
+				  0, map, &nmaps, NULL);
+		xfs_iunlock(qip, XFS_ILOCK_SHARED);
+		if (error)
+			break;
+
+		ASSERT(nmaps <= XFS_DQITER_MAP_SIZE);
+		for (i = 0; i < nmaps; i++) {
+			ASSERT(map[i].br_startblock != DELAYSTARTBLOCK);
+			ASSERT(map[i].br_blockcount);
+
+
+			lblkno += map[i].br_blockcount;
+
+			if (map[i].br_startblock == HOLESTARTBLOCK)
+				continue;
+
+			firstid = (xfs_dqid_t) map[i].br_startoff *
+				XFS_QM_DQPERBLK(mp);
+			/*
+			 * Do a read-ahead on the next extent.
+			 */
+			if ((i+1 < nmaps) &&
+			    (map[i+1].br_startblock != HOLESTARTBLOCK)) {
+				rablkcnt =  map[i+1].br_blockcount;
+				rablkno = map[i+1].br_startblock;
+				while (rablkcnt--) {
+					xfs_baread(mp->m_ddev_targp,
+					       XFS_FSB_TO_DADDR(mp, rablkno),
+					       (int)XFS_QI_DQCHUNKLEN(mp));
+					rablkno++;
+				}
+			}
+			/*
+			 * Iterate thru all the blks in the extent and
+			 * reset the counters of all the dquots inside them.
+			 */
+			if ((error = xfs_qm_dqiter_bufs(mp,
+						       firstid,
+						       map[i].br_startblock,
+						       map[i].br_blockcount,
+						       flags))) {
+				break;
+			}
+		}
+
+		if (error)
+			break;
+	} while (nmaps > 0);
+
+	kmem_free(map, XFS_DQITER_MAP_SIZE * sizeof(*map));
+
+	return (error);
+}
+
+/*
+ * Called by dqusage_adjust in doing a quotacheck.
+ * Given the inode, and a dquot (either USR or GRP, doesn't matter),
+ * this updates its incore copy as well as the buffer copy. This is
+ * so that once the quotacheck is done, we can just log all the buffers,
+ * as opposed to logging numerous updates to individual dquots.
+ */
+STATIC void
+xfs_qm_quotacheck_dqadjust(
+	xfs_dquot_t		*dqp,
+	xfs_qcnt_t		nblks,
+	xfs_qcnt_t		rtblks)
+{
+	ASSERT(XFS_DQ_IS_LOCKED(dqp));
+	xfs_dqtrace_entry(dqp, "QCHECK DQADJUST");
+	/*
+	 * Adjust the inode count and the block count to reflect this inode's
+	 * resource usage.
+	 */
+	INT_MOD(dqp->q_core.d_icount, ARCH_CONVERT, +1);
+	dqp->q_res_icount++;
+	if (nblks) {
+		INT_MOD(dqp->q_core.d_bcount, ARCH_CONVERT, nblks);
+		dqp->q_res_bcount += nblks;
+	}
+	if (rtblks) {
+		INT_MOD(dqp->q_core.d_rtbcount, ARCH_CONVERT, rtblks);
+		dqp->q_res_rtbcount += rtblks;
+	}
+
+	/*
+	 * Set default limits, adjust timers (since we changed usages)
+	 */
+	if (! XFS_IS_SUSER_DQUOT(dqp)) {
+		xfs_qm_adjust_dqlimits(dqp->q_mount, &dqp->q_core);
+		xfs_qm_adjust_dqtimers(dqp->q_mount, &dqp->q_core);
+	}
+
+	dqp->dq_flags |= XFS_DQ_DIRTY;
+}
+
+STATIC int
+xfs_qm_get_rtblks(
+	xfs_inode_t	*ip,
+	xfs_qcnt_t	*O_rtblks)
+{
+	xfs_filblks_t	rtblks;			/* total rt blks */
+	xfs_ifork_t	*ifp;			/* inode fork pointer */
+	xfs_extnum_t	nextents;		/* number of extent entries */
+	xfs_bmbt_rec_t	*base;			/* base of extent array */
+	xfs_bmbt_rec_t	*ep;			/* pointer to an extent entry */
+	int		error;
+
+	ASSERT(XFS_IS_REALTIME_INODE(ip));
+	ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK);
+	if (!(ifp->if_flags & XFS_IFEXTENTS)) {
+		if ((error = xfs_iread_extents(NULL, ip, XFS_DATA_FORK)))
+			return (error);
+	}
+	rtblks = 0;
+	nextents = ifp->if_bytes / sizeof(xfs_bmbt_rec_t);
+	base = &ifp->if_u1.if_extents[0];
+	for (ep = base; ep < &base[nextents]; ep++)
+		rtblks += xfs_bmbt_get_blockcount(ep);
+	*O_rtblks = (xfs_qcnt_t)rtblks;
+	return (0);
+}
+
+/*
+ * callback routine supplied to bulkstat(). Given an inumber, find its
+ * dquots and update them to account for resources taken by that inode.
+ */
+/* ARGSUSED */
+STATIC int
+xfs_qm_dqusage_adjust(
+	xfs_mount_t	*mp,		/* mount point for filesystem */
+	xfs_ino_t	ino,		/* inode number to get data for */
+	void		__user *buffer,	/* not used */
+	int		ubsize,		/* not used */
+	void		*private_data,	/* not used */
+	xfs_daddr_t	bno,		/* starting block of inode cluster */
+	int		*ubused,	/* not used */
+	void		*dip,		/* on-disk inode pointer (not used) */
+	int		*res)		/* result code value */
+{
+	xfs_inode_t	*ip;
+	xfs_dquot_t	*udqp, *gdqp;
+	xfs_qcnt_t	nblks, rtblks;
+	int		error;
+
+	ASSERT(XFS_IS_QUOTA_RUNNING(mp));
+
+	/*
+	 * rootino must have its resources accounted for, not so with the quota
+	 * inodes.
+	 */
+	if (ino == mp->m_sb.sb_uquotino || ino == mp->m_sb.sb_gquotino) {
+		*res = BULKSTAT_RV_NOTHING;
+		return XFS_ERROR(EINVAL);
+	}
+
+	/*
+	 * We don't _need_ to take the ilock EXCL. However, the xfs_qm_dqget
+	 * interface expects the inode to be exclusively locked because that's
+	 * the case in all other instances. It's OK that we do this because
+	 * quotacheck is done only at mount time.
+	 */
+	if ((error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_EXCL, &ip, bno))) {
+		*res = BULKSTAT_RV_NOTHING;
+		return (error);
+	}
+
+	if (ip->i_d.di_mode == 0) {
+		xfs_iput_new(ip, XFS_ILOCK_EXCL);
+		*res = BULKSTAT_RV_NOTHING;
+		return XFS_ERROR(ENOENT);
+	}
+
+	/*
+	 * Obtain the locked dquots. In case of an error (eg. allocation
+	 * fails for ENOSPC), we return the negative of the error number
+	 * to bulkstat, so that it can get propagated to quotacheck() and
+	 * making us disable quotas for the file system.
+	 */
+	if ((error = xfs_qm_dqget_noattach(ip, &udqp, &gdqp))) {
+		xfs_iput(ip, XFS_ILOCK_EXCL);
+		*res = BULKSTAT_RV_GIVEUP;
+		return (error);
+	}
+
+	rtblks = 0;
+	if (! XFS_IS_REALTIME_INODE(ip)) {
+		nblks = (xfs_qcnt_t)ip->i_d.di_nblocks;
+	} else {
+		/*
+		 * Walk thru the extent list and count the realtime blocks.
+		 */
+		if ((error = xfs_qm_get_rtblks(ip, &rtblks))) {
+			xfs_iput(ip, XFS_ILOCK_EXCL);
+			if (udqp)
+				xfs_qm_dqput(udqp);
+			if (gdqp)
+				xfs_qm_dqput(gdqp);
+			*res = BULKSTAT_RV_GIVEUP;
+			return (error);
+		}
+		nblks = (xfs_qcnt_t)ip->i_d.di_nblocks - rtblks;
+	}
+	ASSERT(ip->i_delayed_blks == 0);
+
+	/*
+	 * We can't release the inode while holding its dquot locks.
+	 * The inode can go into inactive and might try to acquire the dquotlocks.
+	 * So, just unlock here and do a vn_rele at the end.
+	 */
+	xfs_iunlock(ip, XFS_ILOCK_EXCL);
+
+	/*
+	 * Add the (disk blocks and inode) resources occupied by this
+	 * inode to its dquots. We do this adjustment in the incore dquot,
+	 * and also copy the changes to its buffer.
+	 * We don't care about putting these changes in a transaction
+	 * envelope because if we crash in the middle of a 'quotacheck'
+	 * we have to start from the beginning anyway.
+	 * Once we're done, we'll log all the dquot bufs.
+	 *
+	 * The *QUOTA_ON checks below may look pretty racey, but quotachecks
+	 * and quotaoffs don't race. (Quotachecks happen at mount time only).
+	 */
+	if (XFS_IS_UQUOTA_ON(mp)) {
+		ASSERT(udqp);
+		xfs_qm_quotacheck_dqadjust(udqp, nblks, rtblks);
+		xfs_qm_dqput(udqp);
+	}
+	if (XFS_IS_GQUOTA_ON(mp)) {
+		ASSERT(gdqp);
+		xfs_qm_quotacheck_dqadjust(gdqp, nblks, rtblks);
+		xfs_qm_dqput(gdqp);
+	}
+	/*
+	 * Now release the inode. This will send it to 'inactive', and
+	 * possibly even free blocks.
+	 */
+	VN_RELE(XFS_ITOV(ip));
+
+	/*
+	 * Goto next inode.
+	 */
+	*res = BULKSTAT_RV_DIDONE;
+	return (0);
+}
+
+/*
+ * Walk thru all the filesystem inodes and construct a consistent view
+ * of the disk quota world. If the quotacheck fails, disable quotas.
+ */
+int
+xfs_qm_quotacheck(
+	xfs_mount_t	*mp)
+{
+	int		done, count, error;
+	xfs_ino_t	lastino;
+	size_t		structsz;
+	xfs_inode_t	*uip, *gip;
+	uint		flags;
+
+	count = INT_MAX;
+	structsz = 1;
+	lastino = 0;
+	flags = 0;
+
+	ASSERT(XFS_QI_UQIP(mp) || XFS_QI_GQIP(mp));
+	ASSERT(XFS_IS_QUOTA_RUNNING(mp));
+
+	/*
+	 * There should be no cached dquots. The (simplistic) quotacheck
+	 * algorithm doesn't like that.
+	 */
+	ASSERT(XFS_QI_MPLNDQUOTS(mp) == 0);
+
+	cmn_err(CE_NOTE, "XFS quotacheck %s: Please wait.", mp->m_fsname);
+
+	/*
+	 * First we go thru all the dquots on disk, USR and GRP, and reset
+	 * their counters to zero. We need a clean slate.
+	 * We don't log our changes till later.
+	 */
+	if ((uip = XFS_QI_UQIP(mp))) {
+		if ((error = xfs_qm_dqiterate(mp, uip, XFS_QMOPT_UQUOTA)))
+			goto error_return;
+		flags |= XFS_UQUOTA_CHKD;
+	}
+
+	if ((gip = XFS_QI_GQIP(mp))) {
+		if ((error = xfs_qm_dqiterate(mp, gip, XFS_QMOPT_GQUOTA)))
+			goto error_return;
+		flags |= XFS_GQUOTA_CHKD;
+	}
+
+	do {
+		/*
+		 * Iterate thru all the inodes in the file system,
+		 * adjusting the corresponding dquot counters in core.
+		 */
+		if ((error = xfs_bulkstat(mp, &lastino, &count,
+				     xfs_qm_dqusage_adjust, NULL,
+				     structsz, NULL,
+				     BULKSTAT_FG_IGET|BULKSTAT_FG_VFSLOCKED,
+				     &done)))
+			break;
+
+	} while (! done);
+
+	/*
+	 * We can get this error if we couldn't do a dquot allocation inside
+	 * xfs_qm_dqusage_adjust (via bulkstat). We don't care about the
+	 * dirty dquots that might be cached, we just want to get rid of them
+	 * and turn quotaoff. The dquots won't be attached to any of the inodes
+	 * at this point (because we intentionally didn't in dqget_noattach).
+	 */
+	if (error) {
+		xfs_qm_dqpurge_all(mp,
+				   XFS_QMOPT_UQUOTA|XFS_QMOPT_GQUOTA|
+				   XFS_QMOPT_QUOTAOFF);
+		goto error_return;
+	}
+	/*
+	 * We've made all the changes that we need to make incore.
+	 * Now flush_them down to disk buffers.
+	 */
+	xfs_qm_dqflush_all(mp, XFS_QMOPT_DELWRI);
+
+	/*
+	 * We didn't log anything, because if we crashed, we'll have to
+	 * start the quotacheck from scratch anyway. However, we must make
+	 * sure that our dquot changes are secure before we put the
+	 * quotacheck'd stamp on the superblock. So, here we do a synchronous
+	 * flush.
+	 */
+	XFS_bflush(mp->m_ddev_targp);
+
+	/*
+	 * If one type of quotas is off, then it will lose its
+	 * quotachecked status, since we won't be doing accounting for
+	 * that type anymore.
+	 */
+	mp->m_qflags &= ~(XFS_GQUOTA_CHKD | XFS_UQUOTA_CHKD);
+	mp->m_qflags |= flags;
+
+	XQM_LIST_PRINT(&(XFS_QI_MPL_LIST(mp)), MPL_NEXT, "++++ Mp list +++");
+
+ error_return:
+	if (error) {
+		cmn_err(CE_WARN, "XFS quotacheck %s: Unsuccessful (Error %d): "
+			"Disabling quotas.",
+			mp->m_fsname, error);
+		/*
+		 * We must turn off quotas.
+		 */
+		ASSERT(mp->m_quotainfo != NULL);
+		ASSERT(xfs_Gqm != NULL);
+		xfs_qm_destroy_quotainfo(mp);
+		xfs_mount_reset_sbqflags(mp);
+	} else {
+		cmn_err(CE_NOTE, "XFS quotacheck %s: Done.", mp->m_fsname);
+	}
+	return (error);
+}
+
+/*
+ * This is called after the superblock has been read in and we're ready to
+ * iget the quota inodes.
+ */
+STATIC int
+xfs_qm_init_quotainos(
+	xfs_mount_t	*mp)
+{
+	xfs_inode_t	*uip, *gip;
+	int		error;
+	__int64_t	sbflags;
+	uint		flags;
+
+	ASSERT(mp->m_quotainfo);
+	uip = gip = NULL;
+	sbflags = 0;
+	flags = 0;
+
+	/*
+	 * Get the uquota and gquota inodes
+	 */
+	if (XFS_SB_VERSION_HASQUOTA(&mp->m_sb)) {
+		if (XFS_IS_UQUOTA_ON(mp) &&
+		    mp->m_sb.sb_uquotino != NULLFSINO) {
+			ASSERT(mp->m_sb.sb_uquotino > 0);
+			if ((error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino,
+					     0, 0, &uip, 0)))
+				return XFS_ERROR(error);
+		}
+		if (XFS_IS_GQUOTA_ON(mp) &&
+		    mp->m_sb.sb_gquotino != NULLFSINO) {
+			ASSERT(mp->m_sb.sb_gquotino > 0);
+			if ((error = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino,
+					     0, 0, &gip, 0))) {
+				if (uip)
+					VN_RELE(XFS_ITOV(uip));
+				return XFS_ERROR(error);
+			}
+		}
+	} else {
+		flags |= XFS_QMOPT_SBVERSION;
+		sbflags |= (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO |
+			    XFS_SB_GQUOTINO | XFS_SB_QFLAGS);
+	}
+
+	/*
+	 * Create the two inodes, if they don't exist already. The changes
+	 * made above will get added to a transaction and logged in one of
+	 * the qino_alloc calls below.  If the device is readonly,
+	 * temporarily switch to read-write to do this.
+	 */
+	if (XFS_IS_UQUOTA_ON(mp) && uip == NULL) {
+		if ((error = xfs_qm_qino_alloc(mp, &uip,
+					      sbflags | XFS_SB_UQUOTINO,
+					      flags | XFS_QMOPT_UQUOTA)))
+			return XFS_ERROR(error);
+
+		flags &= ~XFS_QMOPT_SBVERSION;
+	}
+	if (XFS_IS_GQUOTA_ON(mp) && gip == NULL) {
+		if ((error = xfs_qm_qino_alloc(mp, &gip,
+					      sbflags | XFS_SB_GQUOTINO,
+					      flags | XFS_QMOPT_GQUOTA))) {
+			if (uip)
+				VN_RELE(XFS_ITOV(uip));
+
+			return XFS_ERROR(error);
+		}
+	}
+
+	XFS_QI_UQIP(mp) = uip;
+	XFS_QI_GQIP(mp) = gip;
+
+	return (0);
+}
+
+
+/*
+ * Traverse the freelist of dquots and attempt to reclaim a maximum of
+ * 'howmany' dquots. This operation races with dqlookup(), and attempts to
+ * favor the lookup function ...
+ * XXXsup merge this with qm_reclaim_one().
+ */
+STATIC int
+xfs_qm_shake_freelist(
+	int howmany)
+{
+	int		nreclaimed;
+	xfs_dqhash_t	*hash;
+	xfs_dquot_t	*dqp, *nextdqp;
+	int		restarts;
+	int		nflushes;
+
+	if (howmany <= 0)
+		return (0);
+
+	nreclaimed = 0;
+	restarts = 0;
+	nflushes = 0;
+
+#ifdef QUOTADEBUG
+	cmn_err(CE_DEBUG, "Shake free 0x%x", howmany);
+#endif
+	/* lock order is : hashchainlock, freelistlock, mplistlock */
+ tryagain:
+	xfs_qm_freelist_lock(xfs_Gqm);
+
+	for (dqp = xfs_Gqm->qm_dqfreelist.qh_next;
+	     ((dqp != (xfs_dquot_t *) &xfs_Gqm->qm_dqfreelist) &&
+	      nreclaimed < howmany); ) {
+		xfs_dqlock(dqp);
+
+		/*
+		 * We are racing with dqlookup here. Naturally we don't
+		 * want to reclaim a dquot that lookup wants.
+		 */
+		if (dqp->dq_flags & XFS_DQ_WANT) {
+			xfs_dqunlock(dqp);
+			xfs_qm_freelist_unlock(xfs_Gqm);
+			if (++restarts >= XFS_QM_RECLAIM_MAX_RESTARTS)
+				return (nreclaimed);
+			XQM_STATS_INC(xqmstats.xs_qm_dqwants);
+			goto tryagain;
+		}
+
+		/*
+		 * If the dquot is inactive, we are assured that it is
+		 * not on the mplist or the hashlist, and that makes our
+		 * life easier.
+		 */
+		if (dqp->dq_flags & XFS_DQ_INACTIVE) {
+			ASSERT(dqp->q_mount == NULL);
+			ASSERT(! XFS_DQ_IS_DIRTY(dqp));
+			ASSERT(dqp->HL_PREVP == NULL);
+			ASSERT(dqp->MPL_PREVP == NULL);
+			XQM_STATS_INC(xqmstats.xs_qm_dqinact_reclaims);
+			nextdqp = dqp->dq_flnext;
+			goto off_freelist;
+		}
+
+		ASSERT(dqp->MPL_PREVP);
+		/*
+		 * Try to grab the flush lock. If this dquot is in the process of
+		 * getting flushed to disk, we don't want to reclaim it.
+		 */
+		if (! xfs_qm_dqflock_nowait(dqp)) {
+			xfs_dqunlock(dqp);
+			dqp = dqp->dq_flnext;
+			continue;
+		}
+
+		/*
+		 * We have the flush lock so we know that this is not in the
+		 * process of being flushed. So, if this is dirty, flush it
+		 * DELWRI so that we don't get a freelist infested with
+		 * dirty dquots.
+		 */
+		if (XFS_DQ_IS_DIRTY(dqp)) {
+			xfs_dqtrace_entry(dqp, "DQSHAKE: DQDIRTY");
+			/*
+			 * We flush it delayed write, so don't bother
+			 * releasing the mplock.
+			 */
+			(void) xfs_qm_dqflush(dqp, XFS_QMOPT_DELWRI);
+			xfs_dqunlock(dqp); /* dqflush unlocks dqflock */
+			dqp = dqp->dq_flnext;
+			continue;
+		}
+		/*
+		 * We're trying to get the hashlock out of order. This races
+		 * with dqlookup; so, we giveup and goto the next dquot if
+		 * we couldn't get the hashlock. This way, we won't starve
+		 * a dqlookup process that holds the hashlock that is
+		 * waiting for the freelist lock.
+		 */
+		if (! xfs_qm_dqhashlock_nowait(dqp)) {
+			xfs_dqfunlock(dqp);
+			xfs_dqunlock(dqp);
+			dqp = dqp->dq_flnext;
+			continue;
+		}
+		/*
+		 * This races with dquot allocation code as well as dqflush_all
+		 * and reclaim code. So, if we failed to grab the mplist lock,
+		 * giveup everything and start over.
+		 */
+		hash = dqp->q_hash;
+		ASSERT(hash);
+		if (! xfs_qm_mplist_nowait(dqp->q_mount)) {
+			/* XXX put a sentinel so that we can come back here */
+			xfs_dqfunlock(dqp);
+			xfs_dqunlock(dqp);
+			XFS_DQ_HASH_UNLOCK(hash);
+			xfs_qm_freelist_unlock(xfs_Gqm);
+			if (++restarts >= XFS_QM_RECLAIM_MAX_RESTARTS)
+				return (nreclaimed);
+			goto tryagain;
+		}
+		xfs_dqtrace_entry(dqp, "DQSHAKE: UNLINKING");
+#ifdef QUOTADEBUG
+		cmn_err(CE_DEBUG, "Shake 0x%p, ID 0x%x\n",
+			dqp, INT_GET(dqp->q_core.d_id, ARCH_CONVERT));
+#endif
+		ASSERT(dqp->q_nrefs == 0);
+		nextdqp = dqp->dq_flnext;
+		XQM_MPLIST_REMOVE(&(XFS_QI_MPL_LIST(dqp->q_mount)), dqp);
+		XQM_HASHLIST_REMOVE(hash, dqp);
+		xfs_dqfunlock(dqp);
+		xfs_qm_mplist_unlock(dqp->q_mount);
+		XFS_DQ_HASH_UNLOCK(hash);
+
+ off_freelist:
+		XQM_FREELIST_REMOVE(dqp);
+		xfs_dqunlock(dqp);
+		nreclaimed++;
+		XQM_STATS_INC(xqmstats.xs_qm_dqshake_reclaims);
+		xfs_qm_dqdestroy(dqp);
+		dqp = nextdqp;
+	}
+	xfs_qm_freelist_unlock(xfs_Gqm);
+	return (nreclaimed);
+}
+
+
+/*
+ * The kmem_shake interface is invoked when memory is running low.
+ */
+/* ARGSUSED */
+STATIC int
+xfs_qm_shake(int nr_to_scan, unsigned int gfp_mask)
+{
+	int	ndqused, nfree, n;
+
+	if (!kmem_shake_allow(gfp_mask))
+		return (0);
+	if (!xfs_Gqm)
+		return (0);
+
+	nfree = xfs_Gqm->qm_dqfreelist.qh_nelems; /* free dquots */
+	/* incore dquots in all f/s's */
+	ndqused = atomic_read(&xfs_Gqm->qm_totaldquots) - nfree;
+
+	ASSERT(ndqused >= 0);
+
+	if (nfree <= ndqused && nfree < ndquot)
+		return (0);
+
+	ndqused *= xfs_Gqm->qm_dqfree_ratio;	/* target # of free dquots */
+	n = nfree - ndqused - ndquot;		/* # over target */
+
+	return xfs_qm_shake_freelist(MAX(nfree, n));
+}
+
+
+/*
+ * Just pop the least recently used dquot off the freelist and
+ * recycle it. The returned dquot is locked.
+ */
+STATIC xfs_dquot_t *
+xfs_qm_dqreclaim_one(void)
+{
+	xfs_dquot_t	*dqpout;
+	xfs_dquot_t	*dqp;
+	int		restarts;
+	int		nflushes;
+
+	restarts = 0;
+	dqpout = NULL;
+	nflushes = 0;
+
+	/* lockorder: hashchainlock, freelistlock, mplistlock, dqlock, dqflock */
+ startagain:
+	xfs_qm_freelist_lock(xfs_Gqm);
+
+	FOREACH_DQUOT_IN_FREELIST(dqp, &(xfs_Gqm->qm_dqfreelist)) {
+		xfs_dqlock(dqp);
+
+		/*
+		 * We are racing with dqlookup here. Naturally we don't
+		 * want to reclaim a dquot that lookup wants. We release the
+		 * freelist lock and start over, so that lookup will grab
+		 * both the dquot and the freelistlock.
+		 */
+		if (dqp->dq_flags & XFS_DQ_WANT) {
+			ASSERT(! (dqp->dq_flags & XFS_DQ_INACTIVE));
+			xfs_dqtrace_entry(dqp, "DQRECLAIM: DQWANT");
+			xfs_dqunlock(dqp);
+			xfs_qm_freelist_unlock(xfs_Gqm);
+			if (++restarts >= XFS_QM_RECLAIM_MAX_RESTARTS)
+				return (NULL);
+			XQM_STATS_INC(xqmstats.xs_qm_dqwants);
+			goto startagain;
+		}
+
+		/*
+		 * If the dquot is inactive, we are assured that it is
+		 * not on the mplist or the hashlist, and that makes our
+		 * life easier.
+		 */
+		if (dqp->dq_flags & XFS_DQ_INACTIVE) {
+			ASSERT(dqp->q_mount == NULL);
+			ASSERT(! XFS_DQ_IS_DIRTY(dqp));
+			ASSERT(dqp->HL_PREVP == NULL);
+			ASSERT(dqp->MPL_PREVP == NULL);
+			XQM_FREELIST_REMOVE(dqp);
+			xfs_dqunlock(dqp);
+			dqpout = dqp;
+			XQM_STATS_INC(xqmstats.xs_qm_dqinact_reclaims);
+			break;
+		}
+
+		ASSERT(dqp->q_hash);
+		ASSERT(dqp->MPL_PREVP);
+
+		/*
+		 * Try to grab the flush lock. If this dquot is in the process of
+		 * getting flushed to disk, we don't want to reclaim it.
+		 */
+		if (! xfs_qm_dqflock_nowait(dqp)) {
+			xfs_dqunlock(dqp);
+			continue;
+		}
+
+		/*
+		 * We have the flush lock so we know that this is not in the
+		 * process of being flushed. So, if this is dirty, flush it
+		 * DELWRI so that we don't get a freelist infested with
+		 * dirty dquots.
+		 */
+		if (XFS_DQ_IS_DIRTY(dqp)) {
+			xfs_dqtrace_entry(dqp, "DQRECLAIM: DQDIRTY");
+			/*
+			 * We flush it delayed write, so don't bother
+			 * releasing the freelist lock.
+			 */
+			(void) xfs_qm_dqflush(dqp, XFS_QMOPT_DELWRI);
+			xfs_dqunlock(dqp); /* dqflush unlocks dqflock */
+			continue;
+		}
+
+		if (! xfs_qm_mplist_nowait(dqp->q_mount)) {
+			xfs_dqfunlock(dqp);
+			xfs_dqunlock(dqp);
+			continue;
+		}
+
+		if (! xfs_qm_dqhashlock_nowait(dqp))
+			goto mplistunlock;
+
+		ASSERT(dqp->q_nrefs == 0);
+		xfs_dqtrace_entry(dqp, "DQRECLAIM: UNLINKING");
+		XQM_MPLIST_REMOVE(&(XFS_QI_MPL_LIST(dqp->q_mount)), dqp);
+		XQM_HASHLIST_REMOVE(dqp->q_hash, dqp);
+		XQM_FREELIST_REMOVE(dqp);
+		dqpout = dqp;
+		XFS_DQ_HASH_UNLOCK(dqp->q_hash);
+ mplistunlock:
+		xfs_qm_mplist_unlock(dqp->q_mount);
+		xfs_dqfunlock(dqp);
+		xfs_dqunlock(dqp);
+		if (dqpout)
+			break;
+	}
+
+	xfs_qm_freelist_unlock(xfs_Gqm);
+	return (dqpout);
+}
+
+
+/*------------------------------------------------------------------*/
+
+/*
+ * Return a new incore dquot. Depending on the number of
+ * dquots in the system, we either allocate a new one on the kernel heap,
+ * or reclaim a free one.
+ * Return value is B_TRUE if we allocated a new dquot, B_FALSE if we managed
+ * to reclaim an existing one from the freelist.
+ */
+boolean_t
+xfs_qm_dqalloc_incore(
+	xfs_dquot_t **O_dqpp)
+{
+	xfs_dquot_t	*dqp;
+
+	/*
+	 * Check against high water mark to see if we want to pop
+	 * a nincompoop dquot off the freelist.
+	 */
+	if (atomic_read(&xfs_Gqm->qm_totaldquots) >= ndquot) {
+		/*
+		 * Try to recycle a dquot from the freelist.
+		 */
+		if ((dqp = xfs_qm_dqreclaim_one())) {
+			XQM_STATS_INC(xqmstats.xs_qm_dqreclaims);
+			/*
+			 * Just zero the core here. The rest will get
+			 * reinitialized by caller. XXX we shouldn't even
+			 * do this zero ...
+			 */
+			memset(&dqp->q_core, 0, sizeof(dqp->q_core));
+			*O_dqpp = dqp;
+			return (B_FALSE);
+		}
+		XQM_STATS_INC(xqmstats.xs_qm_dqreclaim_misses);
+	}
+
+	/*
+	 * Allocate a brand new dquot on the kernel heap and return it
+	 * to the caller to initialize.
+	 */
+	ASSERT(xfs_Gqm->qm_dqzone != NULL);
+	*O_dqpp = kmem_zone_zalloc(xfs_Gqm->qm_dqzone, KM_SLEEP);
+	atomic_inc(&xfs_Gqm->qm_totaldquots);
+
+	return (B_TRUE);
+}
+
+
+/*
+ * Start a transaction and write the incore superblock changes to
+ * disk. flags parameter indicates which fields have changed.
+ */
+int
+xfs_qm_write_sb_changes(
+	xfs_mount_t	*mp,
+	__int64_t	flags)
+{
+	xfs_trans_t	*tp;
+	int		error;
+
+#ifdef QUOTADEBUG
+	cmn_err(CE_NOTE, "Writing superblock quota changes :%s", mp->m_fsname);
+#endif
+	tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SBCHANGE);
+	if ((error = xfs_trans_reserve(tp, 0,
+				      mp->m_sb.sb_sectsize + 128, 0,
+				      0,
+				      XFS_DEFAULT_LOG_COUNT))) {
+		xfs_trans_cancel(tp, 0);
+		return (error);
+	}
+
+	xfs_mod_sb(tp, flags);
+	(void) xfs_trans_commit(tp, 0, NULL);
+
+	return (0);
+}
+
+
+/* --------------- utility functions for vnodeops ---------------- */
+
+
+/*
+ * Given an inode, a uid and gid (from cred_t) make sure that we have
+ * allocated relevant dquot(s) on disk, and that we won't exceed inode
+ * quotas by creating this file.
+ * This also attaches dquot(s) to the given inode after locking it,
+ * and returns the dquots corresponding to the uid and/or gid.
+ *
+ * in	: inode (unlocked)
+ * out	: udquot, gdquot with references taken and unlocked
+ */
+int
+xfs_qm_vop_dqalloc(
+	xfs_mount_t	*mp,
+	xfs_inode_t	*ip,
+	uid_t		uid,
+	gid_t		gid,
+	uint		flags,
+	xfs_dquot_t	**O_udqpp,
+	xfs_dquot_t	**O_gdqpp)
+{
+	int		error;
+	xfs_dquot_t	*uq, *gq;
+	uint		lockflags;
+
+	if (!XFS_IS_QUOTA_ON(mp))
+		return 0;
+
+	lockflags = XFS_ILOCK_EXCL;
+	xfs_ilock(ip, lockflags);
+
+	if ((flags & XFS_QMOPT_INHERIT) &&
+	    XFS_INHERIT_GID(ip, XFS_MTOVFS(mp)))
+		gid = ip->i_d.di_gid;
+
+	/*
+	 * Attach the dquot(s) to this inode, doing a dquot allocation
+	 * if necessary. The dquot(s) will not be locked.
+	 */
+	if (XFS_NOT_DQATTACHED(mp, ip)) {
+		if ((error = xfs_qm_dqattach(ip, XFS_QMOPT_DQALLOC |
+					    XFS_QMOPT_ILOCKED))) {
+			xfs_iunlock(ip, lockflags);
+			return (error);
+		}
+	}
+
+	uq = gq = NULL;
+	if ((flags & XFS_QMOPT_UQUOTA) &&
+	    XFS_IS_UQUOTA_ON(mp)) {
+		if (ip->i_d.di_uid != uid) {
+			/*
+			 * What we need is the dquot that has this uid, and
+			 * if we send the inode to dqget, the uid of the inode
+			 * takes priority over what's sent in the uid argument.
+			 * We must unlock inode here before calling dqget if
+			 * we're not sending the inode, because otherwise
+			 * we'll deadlock by doing trans_reserve while
+			 * holding ilock.
+			 */
+			xfs_iunlock(ip, lockflags);
+			if ((error = xfs_qm_dqget(mp, NULL, (xfs_dqid_t) uid,
+						 XFS_DQ_USER,
+						 XFS_QMOPT_DQALLOC |
+						 XFS_QMOPT_DOWARN,
+						 &uq))) {
+				ASSERT(error != ENOENT);
+				return (error);
+			}
+			/*
+			 * Get the ilock in the right order.
+			 */
+			xfs_dqunlock(uq);
+			lockflags = XFS_ILOCK_SHARED;
+			xfs_ilock(ip, lockflags);
+		} else {
+			/*
+			 * Take an extra reference, because we'll return
+			 * this to caller
+			 */
+			ASSERT(ip->i_udquot);
+			uq = ip->i_udquot;
+			xfs_dqlock(uq);
+			XFS_DQHOLD(uq);
+			xfs_dqunlock(uq);
+		}
+	}
+	if ((flags & XFS_QMOPT_GQUOTA) &&
+	    XFS_IS_GQUOTA_ON(mp)) {
+		if (ip->i_d.di_gid != gid) {
+			xfs_iunlock(ip, lockflags);
+			if ((error = xfs_qm_dqget(mp, NULL, (xfs_dqid_t)gid,
+						 XFS_DQ_GROUP,
+						 XFS_QMOPT_DQALLOC |
+						 XFS_QMOPT_DOWARN,
+						 &gq))) {
+				if (uq)
+					xfs_qm_dqrele(uq);
+				ASSERT(error != ENOENT);
+				return (error);
+			}
+			xfs_dqunlock(gq);
+			lockflags = XFS_ILOCK_SHARED;
+			xfs_ilock(ip, lockflags);
+		} else {
+			ASSERT(ip->i_gdquot);
+			gq = ip->i_gdquot;
+			xfs_dqlock(gq);
+			XFS_DQHOLD(gq);
+			xfs_dqunlock(gq);
+		}
+	}
+	if (uq)
+		xfs_dqtrace_entry_ino(uq, "DQALLOC", ip);
+
+	xfs_iunlock(ip, lockflags);
+	if (O_udqpp)
+		*O_udqpp = uq;
+	else if (uq)
+		xfs_qm_dqrele(uq);
+	if (O_gdqpp)
+		*O_gdqpp = gq;
+	else if (gq)
+		xfs_qm_dqrele(gq);
+	return (0);
+}
+
+/*
+ * Actually transfer ownership, and do dquot modifications.
+ * These were already reserved.
+ */
+xfs_dquot_t *
+xfs_qm_vop_chown(
+	xfs_trans_t	*tp,
+	xfs_inode_t	*ip,
+	xfs_dquot_t	**IO_olddq,
+	xfs_dquot_t	*newdq)
+{
+	xfs_dquot_t	*prevdq;
+	ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
+	ASSERT(XFS_IS_QUOTA_RUNNING(ip->i_mount));
+
+	/* old dquot */
+	prevdq = *IO_olddq;
+	ASSERT(prevdq);
+	ASSERT(prevdq != newdq);
+
+	xfs_trans_mod_dquot(tp, prevdq,
+			    XFS_TRANS_DQ_BCOUNT,
+			    -(ip->i_d.di_nblocks));
+	xfs_trans_mod_dquot(tp, prevdq,
+			    XFS_TRANS_DQ_ICOUNT,
+			    -1);
+
+	/* the sparkling new dquot */
+	xfs_trans_mod_dquot(tp, newdq,
+			    XFS_TRANS_DQ_BCOUNT,
+			    ip->i_d.di_nblocks);
+	xfs_trans_mod_dquot(tp, newdq,
+			    XFS_TRANS_DQ_ICOUNT,
+			    1);
+
+	/*
+	 * Take an extra reference, because the inode
+	 * is going to keep this dquot pointer even
+	 * after the trans_commit.
+	 */
+	xfs_dqlock(newdq);
+	XFS_DQHOLD(newdq);
+	xfs_dqunlock(newdq);
+	*IO_olddq = newdq;
+
+	return (prevdq);
+}
+
+/*
+ * Quota reservations for setattr(AT_UID|AT_GID).
+ */
+int
+xfs_qm_vop_chown_reserve(
+	xfs_trans_t	*tp,
+	xfs_inode_t	*ip,
+	xfs_dquot_t	*udqp,
+	xfs_dquot_t	*gdqp,
+	uint		flags)
+{
+	int		error;
+	xfs_mount_t	*mp;
+	uint		delblks;
+	xfs_dquot_t	*unresudq, *unresgdq, *delblksudq, *delblksgdq;
+
+	ASSERT(XFS_ISLOCKED_INODE(ip));
+	mp = ip->i_mount;
+	ASSERT(XFS_IS_QUOTA_RUNNING(mp));
+
+	delblks = ip->i_delayed_blks;
+	delblksudq = delblksgdq = unresudq = unresgdq = NULL;
+
+	if (XFS_IS_UQUOTA_ON(mp) && udqp &&
+	    ip->i_d.di_uid != (uid_t)INT_GET(udqp->q_core.d_id, ARCH_CONVERT)) {
+		delblksudq = udqp;
+		/*
+		 * If there are delayed allocation blocks, then we have to
+		 * unreserve those from the old dquot, and add them to the
+		 * new dquot.
+		 */
+		if (delblks) {
+			ASSERT(ip->i_udquot);
+			unresudq = ip->i_udquot;
+		}
+	}
+	if (XFS_IS_GQUOTA_ON(ip->i_mount) && gdqp &&
+	    ip->i_d.di_gid != INT_GET(gdqp->q_core.d_id, ARCH_CONVERT)) {
+		delblksgdq = gdqp;
+		if (delblks) {
+			ASSERT(ip->i_gdquot);
+			unresgdq = ip->i_gdquot;
+		}
+	}
+
+	if ((error = xfs_trans_reserve_quota_bydquots(tp, ip->i_mount,
+				delblksudq, delblksgdq, ip->i_d.di_nblocks, 1,
+				flags | XFS_QMOPT_RES_REGBLKS)))
+		return (error);
+
+	/*
+	 * Do the delayed blks reservations/unreservations now. Since, these
+	 * are done without the help of a transaction, if a reservation fails
+	 * its previous reservations won't be automatically undone by trans
+	 * code. So, we have to do it manually here.
+	 */
+	if (delblks) {
+		/*
+		 * Do the reservations first. Unreservation can't fail.
+		 */
+		ASSERT(delblksudq || delblksgdq);
+		ASSERT(unresudq || unresgdq);
+		if ((error = xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount,
+				delblksudq, delblksgdq, (xfs_qcnt_t)delblks, 0,
+				flags | XFS_QMOPT_RES_REGBLKS)))
+			return (error);
+		xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount,
+				unresudq, unresgdq, -((xfs_qcnt_t)delblks), 0,
+				XFS_QMOPT_RES_REGBLKS);
+	}
+
+	return (0);
+}
+
+int
+xfs_qm_vop_rename_dqattach(
+	xfs_inode_t	**i_tab)
+{
+	xfs_inode_t	*ip;
+	int		i;
+	int		error;
+
+	ip = i_tab[0];
+
+	if (! XFS_IS_QUOTA_ON(ip->i_mount))
+		return (0);
+
+	if (XFS_NOT_DQATTACHED(ip->i_mount, ip)) {
+		error = xfs_qm_dqattach(ip, 0);
+		if (error)
+			return (error);
+	}
+	for (i = 1; (i < 4 && i_tab[i]); i++) {
+		/*
+		 * Watch out for duplicate entries in the table.
+		 */
+		if ((ip = i_tab[i]) != i_tab[i-1]) {
+			if (XFS_NOT_DQATTACHED(ip->i_mount, ip)) {
+				error = xfs_qm_dqattach(ip, 0);
+				if (error)
+					return (error);
+			}
+		}
+	}
+	return (0);
+}
+
+void
+xfs_qm_vop_dqattach_and_dqmod_newinode(
+	xfs_trans_t	*tp,
+	xfs_inode_t	*ip,
+	xfs_dquot_t	*udqp,
+	xfs_dquot_t	*gdqp)
+{
+	if (!XFS_IS_QUOTA_ON(tp->t_mountp))
+		return;
+
+	ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
+	ASSERT(XFS_IS_QUOTA_RUNNING(tp->t_mountp));
+
+	if (udqp) {
+		xfs_dqlock(udqp);
+		XFS_DQHOLD(udqp);
+		xfs_dqunlock(udqp);
+		ASSERT(ip->i_udquot == NULL);
+		ip->i_udquot = udqp;
+		ASSERT(ip->i_d.di_uid == INT_GET(udqp->q_core.d_id, ARCH_CONVERT));
+		xfs_trans_mod_dquot(tp, udqp, XFS_TRANS_DQ_ICOUNT, 1);
+	}
+	if (gdqp) {
+		xfs_dqlock(gdqp);
+		XFS_DQHOLD(gdqp);
+		xfs_dqunlock(gdqp);
+		ASSERT(ip->i_gdquot == NULL);
+		ip->i_gdquot = gdqp;
+		ASSERT(ip->i_d.di_gid == INT_GET(gdqp->q_core.d_id, ARCH_CONVERT));
+		xfs_trans_mod_dquot(tp, gdqp, XFS_TRANS_DQ_ICOUNT, 1);
+	}
+}
+
+/* ------------- list stuff -----------------*/
+void
+xfs_qm_freelist_init(xfs_frlist_t *ql)
+{
+	ql->qh_next = ql->qh_prev = (xfs_dquot_t *) ql;
+	mutex_init(&ql->qh_lock, MUTEX_DEFAULT, "dqf");
+	ql->qh_version = 0;
+	ql->qh_nelems = 0;
+}
+
+void
+xfs_qm_freelist_destroy(xfs_frlist_t *ql)
+{
+	xfs_dquot_t	*dqp, *nextdqp;
+
+	mutex_lock(&ql->qh_lock, PINOD);
+	for (dqp = ql->qh_next;
+	     dqp != (xfs_dquot_t *)ql; ) {
+		xfs_dqlock(dqp);
+		nextdqp = dqp->dq_flnext;
+#ifdef QUOTADEBUG
+		cmn_err(CE_DEBUG, "FREELIST destroy 0x%p", dqp);
+#endif
+		XQM_FREELIST_REMOVE(dqp);
+		xfs_dqunlock(dqp);
+		xfs_qm_dqdestroy(dqp);
+		dqp = nextdqp;
+	}
+	/*
+	 * Don't bother about unlocking.
+	 */
+	mutex_destroy(&ql->qh_lock);
+
+	ASSERT(ql->qh_nelems == 0);
+}
+
+void
+xfs_qm_freelist_insert(xfs_frlist_t *ql, xfs_dquot_t *dq)
+{
+	dq->dq_flnext = ql->qh_next;
+	dq->dq_flprev = (xfs_dquot_t *)ql;
+	ql->qh_next = dq;
+	dq->dq_flnext->dq_flprev = dq;
+	xfs_Gqm->qm_dqfreelist.qh_nelems++;
+	xfs_Gqm->qm_dqfreelist.qh_version++;
+}
+
+void
+xfs_qm_freelist_unlink(xfs_dquot_t *dq)
+{
+	xfs_dquot_t *next = dq->dq_flnext;
+	xfs_dquot_t *prev = dq->dq_flprev;
+
+	next->dq_flprev = prev;
+	prev->dq_flnext = next;
+	dq->dq_flnext = dq->dq_flprev = dq;
+	xfs_Gqm->qm_dqfreelist.qh_nelems--;
+	xfs_Gqm->qm_dqfreelist.qh_version++;
+}
+
+void
+xfs_qm_freelist_append(xfs_frlist_t *ql, xfs_dquot_t *dq)
+{
+	xfs_qm_freelist_insert((xfs_frlist_t *)ql->qh_prev, dq);
+}
+
+int
+xfs_qm_dqhashlock_nowait(
+	xfs_dquot_t *dqp)
+{
+	int locked;
+
+	locked = mutex_trylock(&((dqp)->q_hash->qh_lock));
+	return (locked);
+}
+
+int
+xfs_qm_freelist_lock_nowait(
+	xfs_qm_t *xqm)
+{
+	int locked;
+
+	locked = mutex_trylock(&(xqm->qm_dqfreelist.qh_lock));
+	return (locked);
+}
+
+int
+xfs_qm_mplist_nowait(
+	xfs_mount_t	*mp)
+{
+	int locked;
+
+	ASSERT(mp->m_quotainfo);
+	locked = mutex_trylock(&(XFS_QI_MPLLOCK(mp)));
+	return (locked);
+}
diff --git a/fs/xfs/quota/xfs_qm.h b/fs/xfs/quota/xfs_qm.h
new file mode 100644
index 00000000000000..dcf1a7a831d8ab
--- /dev/null
+++ b/fs/xfs/quota/xfs_qm.h
@@ -0,0 +1,236 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.	 Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_QM_H__
+#define __XFS_QM_H__
+
+#include "xfs_dquot_item.h"
+#include "xfs_dquot.h"
+#include "xfs_quota_priv.h"
+#include "xfs_qm_stats.h"
+
+struct xfs_qm;
+struct xfs_inode;
+
+extern mutex_t		xfs_Gqm_lock;
+extern struct xfs_qm	*xfs_Gqm;
+extern kmem_zone_t	*qm_dqzone;
+extern kmem_zone_t	*qm_dqtrxzone;
+
+/*
+ * Used in xfs_qm_sync called by xfs_sync to count the max times that it can
+ * iterate over the mountpt's dquot list in one call.
+ */
+#define XFS_QM_SYNC_MAX_RESTARTS	7
+
+/*
+ * Ditto, for xfs_qm_dqreclaim_one.
+ */
+#define XFS_QM_RECLAIM_MAX_RESTARTS	4
+
+/*
+ * Ideal ratio of free to in use dquots. Quota manager makes an attempt
+ * to keep this balance.
+ */
+#define XFS_QM_DQFREE_RATIO		2
+
+/*
+ * Dquot hashtable constants/threshold values.
+ */
+#define XFS_QM_NCSIZE_THRESHOLD		5000
+#define XFS_QM_HASHSIZE_LOW		32
+#define XFS_QM_HASHSIZE_HIGH		64
+
+/*
+ * We output a cmn_err when quotachecking a quota file with more than
+ * this many fsbs.
+ */
+#define XFS_QM_BIG_QCHECK_NBLKS		500
+
+/*
+ * This defines the unit of allocation of dquots.
+ * Currently, it is just one file system block, and a 4K blk contains 30
+ * (136 * 30 = 4080) dquots. It's probably not worth trying to make
+ * this more dynamic.
+ * XXXsup However, if this number is changed, we have to make sure that we don't
+ * implicitly assume that we do allocations in chunks of a single filesystem
+ * block in the dquot/xqm code.
+ */
+#define XFS_DQUOT_CLUSTER_SIZE_FSB	(xfs_filblks_t)1
+/*
+ * When doing a quotacheck, we log dquot clusters of this many FSBs at most
+ * in a single transaction. We don't want to ask for too huge a log reservation.
+ */
+#define XFS_QM_MAX_DQCLUSTER_LOGSZ	3
+
+typedef xfs_dqhash_t	xfs_dqlist_t;
+/*
+ * The freelist head. The first two fields match the first two in the
+ * xfs_dquot_t structure (in xfs_dqmarker_t)
+ */
+typedef struct xfs_frlist {
+       struct xfs_dquot *qh_next;
+       struct xfs_dquot *qh_prev;
+       mutex_t		 qh_lock;
+       uint		 qh_version;
+       uint		 qh_nelems;
+} xfs_frlist_t;
+
+/*
+ * Quota Manager (global) structure. Lives only in core.
+ */
+typedef struct xfs_qm {
+	xfs_dqlist_t	*qm_usr_dqhtable;/* udquot hash table */
+	xfs_dqlist_t	*qm_grp_dqhtable;/* gdquot hash table */
+	uint		 qm_dqhashmask;	 /* # buckets in dq hashtab - 1 */
+	xfs_frlist_t	 qm_dqfreelist;	 /* freelist of dquots */
+	atomic_t	 qm_totaldquots; /* total incore dquots */
+	uint		 qm_nrefs;	 /* file systems with quota on */
+	int		 qm_dqfree_ratio;/* ratio of free to inuse dquots */
+	kmem_zone_t	*qm_dqzone;	 /* dquot mem-alloc zone */
+	kmem_zone_t	*qm_dqtrxzone;	 /* t_dqinfo of transactions */
+} xfs_qm_t;
+
+/*
+ * Various quota information for individual filesystems.
+ * The mount structure keeps a pointer to this.
+ */
+typedef struct xfs_quotainfo {
+	xfs_inode_t	*qi_uquotaip;	 /* user quota inode */
+	xfs_inode_t	*qi_gquotaip;	 /* group quota inode */
+	lock_t		 qi_pinlock;	 /* dquot pinning mutex */
+	xfs_dqlist_t	 qi_dqlist;	 /* all dquots in filesys */
+	int		 qi_dqreclaims;	 /* a change here indicates
+					    a removal in the dqlist */
+	time_t		 qi_btimelimit;	 /* limit for blks timer */
+	time_t		 qi_itimelimit;	 /* limit for inodes timer */
+	time_t		 qi_rtbtimelimit;/* limit for rt blks timer */
+	xfs_qwarncnt_t	 qi_bwarnlimit;	 /* limit for num warnings */
+	xfs_qwarncnt_t	 qi_iwarnlimit;	 /* limit for num warnings */
+	mutex_t		 qi_quotaofflock;/* to serialize quotaoff */
+	xfs_filblks_t	 qi_dqchunklen;	 /* # BBs in a chunk of dqs */
+	uint		 qi_dqperchunk;	 /* # ondisk dqs in above chunk */
+	xfs_qcnt_t	 qi_bhardlimit;	 /* default data blk hard limit */
+	xfs_qcnt_t	 qi_bsoftlimit;	 /* default data blk soft limit */
+	xfs_qcnt_t	 qi_ihardlimit;	 /* default inode count hard limit */
+	xfs_qcnt_t	 qi_isoftlimit;	 /* default inode count soft limit */
+	xfs_qcnt_t	 qi_rtbhardlimit;/* default realtime blk hard limit */
+	xfs_qcnt_t	 qi_rtbsoftlimit;/* default realtime blk soft limit */
+} xfs_quotainfo_t;
+
+
+extern xfs_dqtrxops_t	xfs_trans_dquot_ops;
+
+extern void	xfs_trans_mod_dquot(xfs_trans_t *, xfs_dquot_t *, uint, long);
+extern int	xfs_trans_reserve_quota_bydquots(xfs_trans_t *, xfs_mount_t *,
+			xfs_dquot_t *, xfs_dquot_t *, long, long, uint);
+extern void	xfs_trans_dqjoin(xfs_trans_t *, xfs_dquot_t *);
+extern void	xfs_trans_log_dquot(xfs_trans_t *, xfs_dquot_t *);
+
+/*
+ * We keep the usr and grp dquots separately so that locking will be easier
+ * to do at commit time. All transactions that we know of at this point
+ * affect no more than two dquots of one type. Hence, the TRANS_MAXDQS value.
+ */
+#define XFS_QM_TRANS_MAXDQS		2
+typedef struct xfs_dquot_acct {
+	xfs_dqtrx_t	dqa_usrdquots[XFS_QM_TRANS_MAXDQS];
+	xfs_dqtrx_t	dqa_grpdquots[XFS_QM_TRANS_MAXDQS];
+} xfs_dquot_acct_t;
+
+/*
+ * Users are allowed to have a usage exceeding their softlimit for
+ * a period this long.
+ */
+#define XFS_QM_BTIMELIMIT	(7 * 24*60*60)          /* 1 week */
+#define XFS_QM_RTBTIMELIMIT	(7 * 24*60*60)          /* 1 week */
+#define XFS_QM_ITIMELIMIT	(7 * 24*60*60)          /* 1 week */
+
+#define XFS_QM_BWARNLIMIT	5
+#define XFS_QM_IWARNLIMIT	5
+
+#define XFS_QM_LOCK(xqm)	(mutex_lock(&xqm##_lock, PINOD))
+#define XFS_QM_UNLOCK(xqm)	(mutex_unlock(&xqm##_lock))
+#define XFS_QM_HOLD(xqm)	((xqm)->qm_nrefs++)
+#define XFS_QM_RELE(xqm)	((xqm)->qm_nrefs--)
+
+extern void		xfs_mount_reset_sbqflags(xfs_mount_t *);
+
+extern int		xfs_qm_init_quotainfo(xfs_mount_t *);
+extern void		xfs_qm_destroy_quotainfo(xfs_mount_t *);
+extern int		xfs_qm_mount_quotas(xfs_mount_t *, int);
+extern void		xfs_qm_mount_quotainit(xfs_mount_t *, uint);
+extern int		xfs_qm_quotacheck(xfs_mount_t *);
+extern void		xfs_qm_unmount_quotadestroy(xfs_mount_t *);
+extern int		xfs_qm_unmount_quotas(xfs_mount_t *);
+extern int		xfs_qm_write_sb_changes(xfs_mount_t *, __int64_t);
+extern int		xfs_qm_sync(xfs_mount_t *, short);
+
+/* dquot stuff */
+extern boolean_t	xfs_qm_dqalloc_incore(xfs_dquot_t **);
+extern int		xfs_qm_dqattach(xfs_inode_t *, uint);
+extern void		xfs_qm_dqdetach(xfs_inode_t *);
+extern int		xfs_qm_dqpurge_all(xfs_mount_t *, uint);
+extern void		xfs_qm_dqrele_all_inodes(xfs_mount_t *, uint);
+
+/* vop stuff */
+extern int		xfs_qm_vop_dqalloc(xfs_mount_t *, xfs_inode_t *,
+					uid_t, gid_t, uint,
+					xfs_dquot_t **, xfs_dquot_t **);
+extern void		xfs_qm_vop_dqattach_and_dqmod_newinode(
+					xfs_trans_t *, xfs_inode_t *,
+					xfs_dquot_t *, xfs_dquot_t *);
+extern int		xfs_qm_vop_rename_dqattach(xfs_inode_t **);
+extern xfs_dquot_t *	xfs_qm_vop_chown(xfs_trans_t *, xfs_inode_t *,
+					xfs_dquot_t **, xfs_dquot_t *);
+extern int		xfs_qm_vop_chown_reserve(xfs_trans_t *, xfs_inode_t *,
+					xfs_dquot_t *, xfs_dquot_t *, uint);
+
+/* list stuff */
+extern void		xfs_qm_freelist_init(xfs_frlist_t *);
+extern void		xfs_qm_freelist_destroy(xfs_frlist_t *);
+extern void		xfs_qm_freelist_insert(xfs_frlist_t *, xfs_dquot_t *);
+extern void		xfs_qm_freelist_append(xfs_frlist_t *, xfs_dquot_t *);
+extern void		xfs_qm_freelist_unlink(xfs_dquot_t *);
+extern int		xfs_qm_freelist_lock_nowait(xfs_qm_t *);
+extern int		xfs_qm_mplist_nowait(xfs_mount_t *);
+extern int		xfs_qm_dqhashlock_nowait(xfs_dquot_t *);
+
+/* system call interface */
+extern int		xfs_qm_quotactl(bhv_desc_t *, int, int, xfs_caddr_t);
+
+#ifdef DEBUG
+extern int		xfs_qm_internalqcheck(xfs_mount_t *);
+#else
+#define xfs_qm_internalqcheck(mp)	(0)
+#endif
+
+#endif /* __XFS_QM_H__ */
diff --git a/fs/xfs/quota/xfs_qm_bhv.c b/fs/xfs/quota/xfs_qm_bhv.c
new file mode 100644
index 00000000000000..be67d9c265f8ff
--- /dev/null
+++ b/fs/xfs/quota/xfs_qm_bhv.c
@@ -0,0 +1,410 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.	 Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_clnt.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_alloc.h"
+#include "xfs_dmapi.h"
+#include "xfs_quota.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_bit.h"
+#include "xfs_rtalloc.h"
+#include "xfs_error.h"
+#include "xfs_itable.h"
+#include "xfs_rw.h"
+#include "xfs_acl.h"
+#include "xfs_cap.h"
+#include "xfs_mac.h"
+#include "xfs_attr.h"
+#include "xfs_buf_item.h"
+
+#include "xfs_qm.h"
+
+#define MNTOPT_QUOTA	"quota"		/* disk quotas (user) */
+#define MNTOPT_NOQUOTA	"noquota"	/* no quotas */
+#define MNTOPT_USRQUOTA	"usrquota"	/* user quota enabled */
+#define MNTOPT_GRPQUOTA	"grpquota"	/* group quota enabled */
+#define MNTOPT_UQUOTA	"uquota"	/* user quota (IRIX variant) */
+#define MNTOPT_GQUOTA	"gquota"	/* group quota (IRIX variant) */
+#define MNTOPT_UQUOTANOENF "uqnoenforce"/* user quota limit enforcement */
+#define MNTOPT_GQUOTANOENF "gqnoenforce"/* group quota limit enforcement */
+#define MNTOPT_QUOTANOENF  "qnoenforce"	/* same as uqnoenforce */
+
+STATIC int
+xfs_qm_parseargs(
+	struct bhv_desc		*bhv,
+	char			*options,
+	struct xfs_mount_args	*args,
+	int			update)
+{
+	size_t			length;
+	char			*local_options = options;
+	char			*this_char;
+	int			error;
+	int			referenced = update;
+
+	while ((this_char = strsep(&local_options, ",")) != NULL) {
+		length = strlen(this_char);
+		if (local_options)
+			length++;
+
+		if (!strcmp(this_char, MNTOPT_NOQUOTA)) {
+			args->flags &= ~(XFSMNT_UQUOTAENF|XFSMNT_UQUOTA);
+			args->flags &= ~(XFSMNT_GQUOTAENF|XFSMNT_GQUOTA);
+			referenced = update;
+		} else if (!strcmp(this_char, MNTOPT_QUOTA) ||
+			   !strcmp(this_char, MNTOPT_UQUOTA) ||
+			   !strcmp(this_char, MNTOPT_USRQUOTA)) {
+			args->flags |= XFSMNT_UQUOTA | XFSMNT_UQUOTAENF;
+			referenced = 1;
+		} else if (!strcmp(this_char, MNTOPT_QUOTANOENF) ||
+			   !strcmp(this_char, MNTOPT_UQUOTANOENF)) {
+			args->flags |= XFSMNT_UQUOTA;
+			args->flags &= ~XFSMNT_UQUOTAENF;
+			referenced = 1;
+		} else if (!strcmp(this_char, MNTOPT_GQUOTA) ||
+			   !strcmp(this_char, MNTOPT_GRPQUOTA)) {
+			args->flags |= XFSMNT_GQUOTA | XFSMNT_GQUOTAENF;
+			referenced = 1;
+		} else if (!strcmp(this_char, MNTOPT_GQUOTANOENF)) {
+			args->flags |= XFSMNT_GQUOTA;
+			args->flags &= ~XFSMNT_GQUOTAENF;
+			referenced = 1;
+		} else {
+			if (local_options)
+				*(local_options-1) = ',';
+			continue;
+		}
+
+		while (length--)
+			*this_char++ = ',';
+	}
+
+	PVFS_PARSEARGS(BHV_NEXT(bhv), options, args, update, error);
+	if (!error && !referenced)
+		bhv_remove_vfsops(bhvtovfs(bhv), VFS_POSITION_QM);
+	return error;
+}
+
+STATIC int
+xfs_qm_showargs(
+	struct bhv_desc		*bhv,
+	struct seq_file		*m)
+{
+	struct vfs		*vfsp = bhvtovfs(bhv);
+	struct xfs_mount	*mp = XFS_VFSTOM(vfsp);
+	int			error;
+
+	if (mp->m_qflags & XFS_UQUOTA_ACCT) {
+		(mp->m_qflags & XFS_UQUOTA_ENFD) ?
+			seq_puts(m, "," MNTOPT_USRQUOTA) :
+			seq_puts(m, "," MNTOPT_UQUOTANOENF);
+	}
+
+	if (mp->m_qflags & XFS_GQUOTA_ACCT) {
+		(mp->m_qflags & XFS_GQUOTA_ENFD) ?
+			seq_puts(m, "," MNTOPT_GRPQUOTA) :
+			seq_puts(m, "," MNTOPT_GQUOTANOENF);
+	}
+
+	if (!(mp->m_qflags & (XFS_UQUOTA_ACCT|XFS_GQUOTA_ACCT)))
+		seq_puts(m, "," MNTOPT_NOQUOTA);
+
+	PVFS_SHOWARGS(BHV_NEXT(bhv), m, error);
+	return error;
+}
+
+STATIC int
+xfs_qm_mount(
+	struct bhv_desc		*bhv,
+	struct xfs_mount_args	*args,
+	struct cred		*cr)
+{
+	struct vfs		*vfsp = bhvtovfs(bhv);
+	struct xfs_mount	*mp = XFS_VFSTOM(vfsp);
+	int			error;
+
+	if (args->flags & (XFSMNT_UQUOTA | XFSMNT_GQUOTA))
+		xfs_qm_mount_quotainit(mp, args->flags);
+	PVFS_MOUNT(BHV_NEXT(bhv), args, cr, error);
+	return error;
+}
+
+STATIC int
+xfs_qm_syncall(
+	struct bhv_desc		*bhv,
+	int			flags,
+	cred_t			*credp)
+{
+	struct vfs		*vfsp = bhvtovfs(bhv);
+	struct xfs_mount	*mp = XFS_VFSTOM(vfsp);
+	int			error;
+
+	/*
+	 * Get the Quota Manager to flush the dquots.
+	 */
+	if (XFS_IS_QUOTA_ON(mp)) {
+		if ((error = xfs_qm_sync(mp, flags))) {
+			/*
+			 * If we got an IO error, we will be shutting down.
+			 * So, there's nothing more for us to do here.
+			 */
+			ASSERT(error != EIO || XFS_FORCED_SHUTDOWN(mp));
+			if (XFS_FORCED_SHUTDOWN(mp)) {
+				return XFS_ERROR(error);
+			}
+		}
+	}
+	PVFS_SYNC(BHV_NEXT(bhv), flags, credp, error);
+	return error;
+}
+
+/*
+ * Clear the quotaflags in memory and in the superblock.
+ */
+void
+xfs_mount_reset_sbqflags(
+	xfs_mount_t		*mp)
+{
+	xfs_trans_t		*tp;
+	unsigned long		s;
+
+	mp->m_qflags = 0;
+	/*
+	 * It is OK to look at sb_qflags here in mount path,
+	 * without SB_LOCK.
+	 */
+	if (mp->m_sb.sb_qflags == 0)
+		return;
+	s = XFS_SB_LOCK(mp);
+	mp->m_sb.sb_qflags = 0;
+	XFS_SB_UNLOCK(mp, s);
+
+	/*
+	 * if the fs is readonly, let the incore superblock run
+	 * with quotas off but don't flush the update out to disk
+	 */
+	if (XFS_MTOVFS(mp)->vfs_flag & VFS_RDONLY)
+		return;
+#ifdef QUOTADEBUG
+	xfs_fs_cmn_err(CE_NOTE, mp, "Writing superblock quota changes");
+#endif
+	tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SBCHANGE);
+	if (xfs_trans_reserve(tp, 0, mp->m_sb.sb_sectsize + 128, 0, 0,
+				      XFS_DEFAULT_LOG_COUNT)) {
+		xfs_trans_cancel(tp, 0);
+		xfs_fs_cmn_err(CE_ALERT, mp,
+			"xfs_mount_reset_sbqflags: Superblock update failed!");
+		return;
+	}
+	xfs_mod_sb(tp, XFS_SB_QFLAGS);
+	xfs_trans_commit(tp, 0, NULL);
+}
+
+STATIC int
+xfs_qm_newmount(
+	xfs_mount_t	*mp,
+	uint		*needquotamount,
+	uint		*quotaflags)
+{
+	uint		quotaondisk;
+	uint		uquotaondisk = 0, gquotaondisk = 0;
+
+	*quotaflags = 0;
+	*needquotamount = B_FALSE;
+
+	quotaondisk = XFS_SB_VERSION_HASQUOTA(&mp->m_sb) &&
+		mp->m_sb.sb_qflags & (XFS_UQUOTA_ACCT|XFS_GQUOTA_ACCT);
+
+	if (quotaondisk) {
+		uquotaondisk = mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT;
+		gquotaondisk = mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT;
+	}
+
+	/*
+	 * If the device itself is read-only, we can't allow
+	 * the user to change the state of quota on the mount -
+	 * this would generate a transaction on the ro device,
+	 * which would lead to an I/O error and shutdown
+	 */
+
+	if (((uquotaondisk && !XFS_IS_UQUOTA_ON(mp)) ||
+	    (!uquotaondisk &&  XFS_IS_UQUOTA_ON(mp)) ||
+	     (gquotaondisk && !XFS_IS_GQUOTA_ON(mp)) ||
+	    (!gquotaondisk &&  XFS_IS_GQUOTA_ON(mp)))  &&
+	    xfs_dev_is_read_only(mp, "changing quota state")) {
+		cmn_err(CE_WARN,
+			"XFS: please mount with%s%s%s.",
+			(!quotaondisk ? "out quota" : ""),
+			(uquotaondisk ? " usrquota" : ""),
+			(gquotaondisk ? " grpquota" : ""));
+		return XFS_ERROR(EPERM);
+	}
+
+	if (XFS_IS_QUOTA_ON(mp) || quotaondisk) {
+		/*
+		 * Call mount_quotas at this point only if we won't have to do
+		 * a quotacheck.
+		 */
+		if (quotaondisk && !XFS_QM_NEED_QUOTACHECK(mp)) {
+			/*
+			 * If an error occured, qm_mount_quotas code
+			 * has already disabled quotas. So, just finish
+			 * mounting, and get on with the boring life
+			 * without disk quotas.
+			 */
+			xfs_qm_mount_quotas(mp, 0);
+		} else {
+			/*
+			 * Clear the quota flags, but remember them. This
+			 * is so that the quota code doesn't get invoked
+			 * before we're ready. This can happen when an
+			 * inode goes inactive and wants to free blocks,
+			 * or via xfs_log_mount_finish.
+			 */
+			*needquotamount = B_TRUE;
+			*quotaflags = mp->m_qflags;
+			mp->m_qflags = 0;
+		}
+	}
+
+	return 0;
+}
+
+STATIC int
+xfs_qm_endmount(
+	xfs_mount_t	*mp,
+	uint		needquotamount,
+	uint		quotaflags,
+	int		mfsi_flags)
+{
+	if (needquotamount) {
+		ASSERT(mp->m_qflags == 0);
+		mp->m_qflags = quotaflags;
+		xfs_qm_mount_quotas(mp, mfsi_flags);
+	}
+
+#if defined(DEBUG) && defined(XFS_LOUD_RECOVERY)
+	if (! (XFS_IS_QUOTA_ON(mp)))
+		xfs_fs_cmn_err(CE_NOTE, mp, "Disk quotas not turned on");
+	else
+		xfs_fs_cmn_err(CE_NOTE, mp, "Disk quotas turned on");
+#endif
+
+#ifdef QUOTADEBUG
+	if (XFS_IS_QUOTA_ON(mp) && xfs_qm_internalqcheck(mp))
+		cmn_err(CE_WARN, "XFS: mount internalqcheck failed");
+#endif
+
+	return 0;
+}
+
+STATIC void
+xfs_qm_dqrele_null(
+	xfs_dquot_t	*dq)
+{
+	/*
+	 * Called from XFS, where we always check first for a NULL dquot.
+	 */
+	if (!dq)
+		return;
+	xfs_qm_dqrele(dq);
+}
+
+
+struct xfs_qmops xfs_qmcore_xfs = {
+	.xfs_qminit		= xfs_qm_newmount,
+	.xfs_qmdone		= xfs_qm_unmount_quotadestroy,
+	.xfs_qmmount		= xfs_qm_endmount,
+	.xfs_qmunmount		= xfs_qm_unmount_quotas,
+	.xfs_dqrele		= xfs_qm_dqrele_null,
+	.xfs_dqattach		= xfs_qm_dqattach,
+	.xfs_dqdetach		= xfs_qm_dqdetach,
+	.xfs_dqpurgeall		= xfs_qm_dqpurge_all,
+	.xfs_dqvopalloc		= xfs_qm_vop_dqalloc,
+	.xfs_dqvopcreate	= xfs_qm_vop_dqattach_and_dqmod_newinode,
+	.xfs_dqvoprename	= xfs_qm_vop_rename_dqattach,
+	.xfs_dqvopchown		= xfs_qm_vop_chown,
+	.xfs_dqvopchownresv	= xfs_qm_vop_chown_reserve,
+	.xfs_dqtrxops		= &xfs_trans_dquot_ops,
+};
+
+struct bhv_vfsops xfs_qmops = { {
+	BHV_IDENTITY_INIT(VFS_BHV_QM, VFS_POSITION_QM),
+	.vfs_parseargs		= xfs_qm_parseargs,
+	.vfs_showargs		= xfs_qm_showargs,
+	.vfs_mount		= xfs_qm_mount,
+	.vfs_sync		= xfs_qm_syncall,
+	.vfs_quotactl		= xfs_qm_quotactl, },
+};
+
+
+void __init
+xfs_qm_init(void)
+{
+	static char	message[] __initdata =
+		KERN_INFO "SGI XFS Quota Management subsystem\n";
+
+	printk(message);
+	mutex_init(&xfs_Gqm_lock, MUTEX_DEFAULT, "xfs_qmlock");
+	vfs_bhv_set_custom(&xfs_qmops, &xfs_qmcore_xfs);
+	xfs_qm_init_procfs();
+}
+
+void __exit
+xfs_qm_exit(void)
+{
+	vfs_bhv_clr_custom(&xfs_qmops);
+	xfs_qm_cleanup_procfs();
+	if (qm_dqzone)
+		kmem_cache_destroy(qm_dqzone);
+	if (qm_dqtrxzone)
+		kmem_cache_destroy(qm_dqtrxzone);
+}
diff --git a/fs/xfs/quota/xfs_qm_stats.c b/fs/xfs/quota/xfs_qm_stats.c
new file mode 100644
index 00000000000000..29978e037fee49
--- /dev/null
+++ b/fs/xfs/quota/xfs_qm_stats.c
@@ -0,0 +1,149 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.	 Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_alloc.h"
+#include "xfs_dmapi.h"
+#include "xfs_quota.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_bit.h"
+#include "xfs_rtalloc.h"
+#include "xfs_error.h"
+#include "xfs_itable.h"
+#include "xfs_rw.h"
+#include "xfs_acl.h"
+#include "xfs_cap.h"
+#include "xfs_mac.h"
+#include "xfs_attr.h"
+#include "xfs_buf_item.h"
+
+#include "xfs_qm.h"
+
+struct xqmstats xqmstats;
+
+STATIC int
+xfs_qm_read_xfsquota(
+	char		*buffer,
+	char		**start,
+	off_t		offset,
+	int		count,
+	int		*eof,
+	void		*data)
+{
+	int		len;
+
+	/* maximum; incore; ratio free to inuse; freelist */
+	len = sprintf(buffer, "%d\t%d\t%d\t%u\n",
+			ndquot,
+			xfs_Gqm? atomic_read(&xfs_Gqm->qm_totaldquots) : 0,
+			xfs_Gqm? xfs_Gqm->qm_dqfree_ratio : 0,
+			xfs_Gqm? xfs_Gqm->qm_dqfreelist.qh_nelems : 0);
+
+	if (offset >= len) {
+		*start = buffer;
+		*eof = 1;
+		return 0;
+	}
+	*start = buffer + offset;
+	if ((len -= offset) > count)
+		return count;
+	*eof = 1;
+
+	return len;
+}
+
+STATIC int
+xfs_qm_read_stats(
+	char		*buffer,
+	char		**start,
+	off_t		offset,
+	int		count,
+	int		*eof,
+	void		*data)
+{
+	int		len;
+
+	/* quota performance statistics */
+	len = sprintf(buffer, "qm %u %u %u %u %u %u %u %u\n",
+			xqmstats.xs_qm_dqreclaims,
+			xqmstats.xs_qm_dqreclaim_misses,
+			xqmstats.xs_qm_dquot_dups,
+			xqmstats.xs_qm_dqcachemisses,
+			xqmstats.xs_qm_dqcachehits,
+			xqmstats.xs_qm_dqwants,
+			xqmstats.xs_qm_dqshake_reclaims,
+			xqmstats.xs_qm_dqinact_reclaims);
+
+	if (offset >= len) {
+		*start = buffer;
+		*eof = 1;
+		return 0;
+	}
+	*start = buffer + offset;
+	if ((len -= offset) > count)
+		return count;
+	*eof = 1;
+
+	return len;
+}
+
+void
+xfs_qm_init_procfs(void)
+{
+	create_proc_read_entry("fs/xfs/xqmstat", 0, NULL, xfs_qm_read_stats, NULL);
+	create_proc_read_entry("fs/xfs/xqm", 0, NULL, xfs_qm_read_xfsquota, NULL);
+}
+
+void
+xfs_qm_cleanup_procfs(void)
+{
+	remove_proc_entry("fs/xfs/xqm", NULL);
+	remove_proc_entry("fs/xfs/xqmstat", NULL);
+}
diff --git a/fs/xfs/quota/xfs_qm_stats.h b/fs/xfs/quota/xfs_qm_stats.h
new file mode 100644
index 00000000000000..8093c5c284ecbe
--- /dev/null
+++ b/fs/xfs/quota/xfs_qm_stats.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.	 Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_QM_STATS_H__
+#define __XFS_QM_STATS_H__
+
+
+#if defined(CONFIG_PROC_FS) && !defined(XFS_STATS_OFF)
+
+/*
+ * XQM global statistics
+ */
+struct xqmstats {
+	__uint32_t		xs_qm_dqreclaims;
+	__uint32_t		xs_qm_dqreclaim_misses;
+	__uint32_t		xs_qm_dquot_dups;
+	__uint32_t		xs_qm_dqcachemisses;
+	__uint32_t		xs_qm_dqcachehits;
+	__uint32_t		xs_qm_dqwants;
+	__uint32_t		xs_qm_dqshake_reclaims;
+	__uint32_t		xs_qm_dqinact_reclaims;
+};
+
+extern struct xqmstats xqmstats;
+
+# define XQM_STATS_INC(count)	( (count)++ )
+
+extern void xfs_qm_init_procfs(void);
+extern void xfs_qm_cleanup_procfs(void);
+
+#else
+
+# define XQM_STATS_INC(count)	do { } while (0)
+
+static __inline void xfs_qm_init_procfs(void) { };
+static __inline void xfs_qm_cleanup_procfs(void) { };
+
+#endif
+
+#endif	/* __XFS_QM_STATS_H__ */
diff --git a/fs/xfs/quota/xfs_qm_syscalls.c b/fs/xfs/quota/xfs_qm_syscalls.c
new file mode 100644
index 00000000000000..3548ced3272434
--- /dev/null
+++ b/fs/xfs/quota/xfs_qm_syscalls.c
@@ -0,0 +1,1460 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.	 Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_alloc.h"
+#include "xfs_dmapi.h"
+#include "xfs_quota.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_bit.h"
+#include "xfs_rtalloc.h"
+#include "xfs_error.h"
+#include "xfs_itable.h"
+#include "xfs_rw.h"
+#include "xfs_acl.h"
+#include "xfs_cap.h"
+#include "xfs_mac.h"
+#include "xfs_attr.h"
+#include "xfs_buf_item.h"
+#include "xfs_utils.h"
+
+#include "xfs_qm.h"
+
+#ifdef DEBUG
+# define qdprintk(s, args...)	cmn_err(CE_DEBUG, s, ## args)
+#else
+# define qdprintk(s, args...)	do { } while (0)
+#endif
+
+STATIC int	xfs_qm_scall_trunc_qfiles(xfs_mount_t *, uint);
+STATIC int	xfs_qm_scall_getquota(xfs_mount_t *, xfs_dqid_t, uint,
+					fs_disk_quota_t *);
+STATIC int	xfs_qm_scall_getqstat(xfs_mount_t *, fs_quota_stat_t *);
+STATIC int	xfs_qm_scall_setqlim(xfs_mount_t *, xfs_dqid_t, uint,
+					fs_disk_quota_t *);
+STATIC int	xfs_qm_scall_quotaon(xfs_mount_t *, uint);
+STATIC int	xfs_qm_scall_quotaoff(xfs_mount_t *, uint, boolean_t);
+STATIC int	xfs_qm_log_quotaoff(xfs_mount_t *, xfs_qoff_logitem_t **, uint);
+STATIC int	xfs_qm_log_quotaoff_end(xfs_mount_t *, xfs_qoff_logitem_t *,
+					uint);
+STATIC uint	xfs_qm_import_flags(uint);
+STATIC uint	xfs_qm_export_flags(uint);
+STATIC uint	xfs_qm_import_qtype_flags(uint);
+STATIC uint	xfs_qm_export_qtype_flags(uint);
+STATIC void	xfs_qm_export_dquot(xfs_mount_t *, xfs_disk_dquot_t *,
+					fs_disk_quota_t *);
+
+
+/*
+ * The main distribution switch of all XFS quotactl system calls.
+ */
+int
+xfs_qm_quotactl(
+	struct bhv_desc *bdp,
+	int		cmd,
+	int		id,
+	xfs_caddr_t	addr)
+{
+	xfs_mount_t	*mp;
+	int		error;
+	struct vfs	*vfsp;
+
+	vfsp = bhvtovfs(bdp);
+	mp = XFS_VFSTOM(vfsp);
+
+	if (addr == NULL && cmd != Q_SYNC)
+		return XFS_ERROR(EINVAL);
+	if (id < 0 && cmd != Q_SYNC)
+		return XFS_ERROR(EINVAL);
+
+	/*
+	 * The following commands are valid even when quotaoff.
+	 */
+	switch (cmd) {
+		/*
+		 * truncate quota files. quota must be off.
+		 */
+	      case Q_XQUOTARM:
+		if (XFS_IS_QUOTA_ON(mp) || addr == NULL)
+			return XFS_ERROR(EINVAL);
+		if (vfsp->vfs_flag & VFS_RDONLY)
+			return XFS_ERROR(EROFS);
+		return (xfs_qm_scall_trunc_qfiles(mp,
+			       xfs_qm_import_qtype_flags(*(uint *)addr)));
+		/*
+		 * Get quota status information.
+		 */
+	      case Q_XGETQSTAT:
+		return (xfs_qm_scall_getqstat(mp, (fs_quota_stat_t *)addr));
+
+		/*
+		 * QUOTAON for root f/s and quota enforcement on others..
+		 * Quota accounting for non-root f/s's must be turned on
+		 * at mount time.
+		 */
+	      case Q_XQUOTAON:
+		if (addr == NULL)
+			return XFS_ERROR(EINVAL);
+		if (vfsp->vfs_flag & VFS_RDONLY)
+			return XFS_ERROR(EROFS);
+		return (xfs_qm_scall_quotaon(mp,
+					  xfs_qm_import_flags(*(uint *)addr)));
+	      case Q_XQUOTAOFF:
+		if (vfsp->vfs_flag & VFS_RDONLY)
+			return XFS_ERROR(EROFS);
+		break;
+
+	      default:
+		break;
+	}
+
+	if (! XFS_IS_QUOTA_ON(mp))
+		return XFS_ERROR(ESRCH);
+
+	switch (cmd) {
+	      case Q_XQUOTAOFF:
+		if (vfsp->vfs_flag & VFS_RDONLY)
+			return XFS_ERROR(EROFS);
+		error = xfs_qm_scall_quotaoff(mp,
+					    xfs_qm_import_flags(*(uint *)addr),
+					    B_FALSE);
+		break;
+
+		/*
+		 * Defaults to XFS_GETUQUOTA.
+		 */
+	      case Q_XGETQUOTA:
+		error = xfs_qm_scall_getquota(mp, (xfs_dqid_t)id, XFS_DQ_USER,
+					(fs_disk_quota_t *)addr);
+		break;
+		/*
+		 * Set limits, both hard and soft. Defaults to Q_SETUQLIM.
+		 */
+	      case Q_XSETQLIM:
+		if (vfsp->vfs_flag & VFS_RDONLY)
+			return XFS_ERROR(EROFS);
+		error = xfs_qm_scall_setqlim(mp, (xfs_dqid_t)id, XFS_DQ_USER,
+					     (fs_disk_quota_t *)addr);
+		break;
+
+	       case Q_XSETGQLIM:
+		if (vfsp->vfs_flag & VFS_RDONLY)
+			return XFS_ERROR(EROFS);
+		error = xfs_qm_scall_setqlim(mp, (xfs_dqid_t)id, XFS_DQ_GROUP,
+					     (fs_disk_quota_t *)addr);
+		break;
+
+
+	      case Q_XGETGQUOTA:
+		error = xfs_qm_scall_getquota(mp, (xfs_dqid_t)id, XFS_DQ_GROUP,
+					(fs_disk_quota_t *)addr);
+		break;
+
+		/*
+		 * Quotas are entirely undefined after quotaoff in XFS quotas.
+		 * For instance, there's no way to set limits when quotaoff.
+		 */
+
+	      default:
+		error = XFS_ERROR(EINVAL);
+		break;
+	}
+
+	return (error);
+}
+
+/*
+ * Turn off quota accounting and/or enforcement for all udquots and/or
+ * gdquots. Called only at unmount time.
+ *
+ * This assumes that there are no dquots of this file system cached
+ * incore, and modifies the ondisk dquot directly. Therefore, for example,
+ * it is an error to call this twice, without purging the cache.
+ */
+STATIC int
+xfs_qm_scall_quotaoff(
+	xfs_mount_t		*mp,
+	uint			flags,
+	boolean_t		force)
+{
+	uint			dqtype;
+	unsigned long	s;
+	int			error;
+	uint			inactivate_flags;
+	xfs_qoff_logitem_t	*qoffstart;
+	int			nculprits;
+
+	if (!force && !capable(CAP_SYS_ADMIN))
+		return XFS_ERROR(EPERM);
+	/*
+	 * No file system can have quotas enabled on disk but not in core.
+	 * Note that quota utilities (like quotaoff) _expect_
+	 * errno == EEXIST here.
+	 */
+	if ((mp->m_qflags & flags) == 0)
+		return XFS_ERROR(EEXIST);
+	error = 0;
+
+	flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD);
+
+	/*
+	 * We don't want to deal with two quotaoffs messing up each other,
+	 * so we're going to serialize it. quotaoff isn't exactly a performance
+	 * critical thing.
+	 * If quotaoff, then we must be dealing with the root filesystem.
+	 */
+	ASSERT(mp->m_quotainfo);
+	if (mp->m_quotainfo)
+		mutex_lock(&(XFS_QI_QOFFLOCK(mp)), PINOD);
+
+	ASSERT(mp->m_quotainfo);
+
+	/*
+	 * If we're just turning off quota enforcement, change mp and go.
+	 */
+	if ((flags & XFS_ALL_QUOTA_ACCT) == 0) {
+		mp->m_qflags &= ~(flags);
+
+		s = XFS_SB_LOCK(mp);
+		mp->m_sb.sb_qflags = mp->m_qflags;
+		XFS_SB_UNLOCK(mp, s);
+		mutex_unlock(&(XFS_QI_QOFFLOCK(mp)));
+
+		/* XXX what to do if error ? Revert back to old vals incore ? */
+		error = xfs_qm_write_sb_changes(mp, XFS_SB_QFLAGS);
+		return (error);
+	}
+
+	dqtype = 0;
+	inactivate_flags = 0;
+	/*
+	 * If accounting is off, we must turn enforcement off, clear the
+	 * quota 'CHKD' certificate to make it known that we have to
+	 * do a quotacheck the next time this quota is turned on.
+	 */
+	if (flags & XFS_UQUOTA_ACCT) {
+		dqtype |= XFS_QMOPT_UQUOTA;
+		flags |= (XFS_UQUOTA_CHKD | XFS_UQUOTA_ENFD);
+		inactivate_flags |= XFS_UQUOTA_ACTIVE;
+	}
+	if (flags & XFS_GQUOTA_ACCT) {
+		dqtype |= XFS_QMOPT_GQUOTA;
+		flags |= (XFS_GQUOTA_CHKD | XFS_GQUOTA_ENFD);
+		inactivate_flags |= XFS_GQUOTA_ACTIVE;
+	}
+
+	/*
+	 * Nothing to do?  Don't complain. This happens when we're just
+	 * turning off quota enforcement.
+	 */
+	if ((mp->m_qflags & flags) == 0) {
+		mutex_unlock(&(XFS_QI_QOFFLOCK(mp)));
+		return (0);
+	}
+
+	/*
+	 * Write the LI_QUOTAOFF log record, and do SB changes atomically,
+	 * and synchronously.
+	 */
+	xfs_qm_log_quotaoff(mp, &qoffstart, flags);
+
+	/*
+	 * Next we clear the XFS_MOUNT_*DQ_ACTIVE bit(s) in the mount struct
+	 * to take care of the race between dqget and quotaoff. We don't take
+	 * any special locks to reset these bits. All processes need to check
+	 * these bits *after* taking inode lock(s) to see if the particular
+	 * quota type is in the process of being turned off. If *ACTIVE, it is
+	 * guaranteed that all dquot structures and all quotainode ptrs will all
+	 * stay valid as long as that inode is kept locked.
+	 *
+	 * There is no turning back after this.
+	 */
+	mp->m_qflags &= ~inactivate_flags;
+
+	/*
+	 * Give back all the dquot reference(s) held by inodes.
+	 * Here we go thru every single incore inode in this file system, and
+	 * do a dqrele on the i_udquot/i_gdquot that it may have.
+	 * Essentially, as long as somebody has an inode locked, this guarantees
+	 * that quotas will not be turned off. This is handy because in a
+	 * transaction once we lock the inode(s) and check for quotaon, we can
+	 * depend on the quota inodes (and other things) being valid as long as
+	 * we keep the lock(s).
+	 */
+	xfs_qm_dqrele_all_inodes(mp, flags);
+
+	/*
+	 * Next we make the changes in the quota flag in the mount struct.
+	 * This isn't protected by a particular lock directly, because we
+	 * don't want to take a mrlock everytime we depend on quotas being on.
+	 */
+	mp->m_qflags &= ~(flags);
+
+	/*
+	 * Go through all the dquots of this file system and purge them,
+	 * according to what was turned off. We may not be able to get rid
+	 * of all dquots, because dquots can have temporary references that
+	 * are not attached to inodes. eg. xfs_setattr, xfs_create.
+	 * So, if we couldn't purge all the dquots from the filesystem,
+	 * we can't get rid of the incore data structures.
+	 */
+	while ((nculprits = xfs_qm_dqpurge_all(mp, dqtype|XFS_QMOPT_QUOTAOFF)))
+		delay(10 * nculprits);
+
+	/*
+	 * Transactions that had started before ACTIVE state bit was cleared
+	 * could have logged many dquots, so they'd have higher LSNs than
+	 * the first QUOTAOFF log record does. If we happen to crash when
+	 * the tail of the log has gone past the QUOTAOFF record, but
+	 * before the last dquot modification, those dquots __will__
+	 * recover, and that's not good.
+	 *
+	 * So, we have QUOTAOFF start and end logitems; the start
+	 * logitem won't get overwritten until the end logitem appears...
+	 */
+	xfs_qm_log_quotaoff_end(mp, qoffstart, flags);
+
+	/*
+	 * If quotas is completely disabled, close shop.
+	 */
+	if ((flags & XFS_MOUNT_QUOTA_ALL) == XFS_MOUNT_QUOTA_ALL) {
+		mutex_unlock(&(XFS_QI_QOFFLOCK(mp)));
+		xfs_qm_destroy_quotainfo(mp);
+		return (0);
+	}
+
+	/*
+	 * Release our quotainode references, and vn_purge them,
+	 * if we don't need them anymore.
+	 */
+	if ((dqtype & XFS_QMOPT_UQUOTA) && XFS_QI_UQIP(mp)) {
+		XFS_PURGE_INODE(XFS_QI_UQIP(mp));
+		XFS_QI_UQIP(mp) = NULL;
+	}
+	if ((dqtype & XFS_QMOPT_GQUOTA) && XFS_QI_GQIP(mp)) {
+		XFS_PURGE_INODE(XFS_QI_GQIP(mp));
+		XFS_QI_GQIP(mp) = NULL;
+	}
+	mutex_unlock(&(XFS_QI_QOFFLOCK(mp)));
+
+	return (error);
+}
+
+STATIC int
+xfs_qm_scall_trunc_qfiles(
+	xfs_mount_t	*mp,
+	uint		flags)
+{
+	int		error;
+	xfs_inode_t	*qip;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return XFS_ERROR(EPERM);
+	error = 0;
+	if (!XFS_SB_VERSION_HASQUOTA(&mp->m_sb) || flags == 0) {
+		qdprintk("qtrunc flags=%x m_qflags=%x\n", flags, mp->m_qflags);
+		return XFS_ERROR(EINVAL);
+	}
+
+	if ((flags & XFS_DQ_USER) && mp->m_sb.sb_uquotino != NULLFSINO) {
+		error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, 0, 0, &qip, 0);
+		if (! error) {
+			(void) xfs_truncate_file(mp, qip);
+			VN_RELE(XFS_ITOV(qip));
+		}
+	}
+
+	if ((flags & XFS_DQ_GROUP) && mp->m_sb.sb_gquotino != NULLFSINO) {
+		error = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, 0, 0, &qip, 0);
+		if (! error) {
+			(void) xfs_truncate_file(mp, qip);
+			VN_RELE(XFS_ITOV(qip));
+		}
+	}
+
+	return (error);
+}
+
+
+/*
+ * Switch on (a given) quota enforcement for a filesystem.  This takes
+ * effect immediately.
+ * (Switching on quota accounting must be done at mount time.)
+ */
+STATIC int
+xfs_qm_scall_quotaon(
+	xfs_mount_t	*mp,
+	uint		flags)
+{
+	int		error;
+	unsigned long s;
+	uint		qf;
+	uint		accflags;
+	__int64_t	sbflags;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return XFS_ERROR(EPERM);
+
+	flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD);
+	/*
+	 * Switching on quota accounting must be done at mount time.
+	 */
+	accflags = flags & XFS_ALL_QUOTA_ACCT;
+	flags &= ~(XFS_ALL_QUOTA_ACCT);
+
+	sbflags = 0;
+
+	if (flags == 0) {
+		qdprintk("quotaon: zero flags, m_qflags=%x\n", mp->m_qflags);
+		return XFS_ERROR(EINVAL);
+	}
+
+	/* No fs can turn on quotas with a delayed effect */
+	ASSERT((flags & XFS_ALL_QUOTA_ACCT) == 0);
+
+	/*
+	 * Can't enforce without accounting. We check the superblock
+	 * qflags here instead of m_qflags because rootfs can have
+	 * quota acct on ondisk without m_qflags' knowing.
+	 */
+	if (((flags & XFS_UQUOTA_ACCT) == 0 &&
+	    (mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) == 0 &&
+	    (flags & XFS_UQUOTA_ENFD))
+	    ||
+	    ((flags & XFS_GQUOTA_ACCT) == 0 &&
+	    (mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) == 0 &&
+	    (flags & XFS_GQUOTA_ENFD))) {
+		qdprintk("Can't enforce without acct, flags=%x sbflags=%x\n",
+			flags, mp->m_sb.sb_qflags);
+		return XFS_ERROR(EINVAL);
+	}
+	/*
+	 * If everything's upto-date incore, then don't waste time.
+	 */
+	if ((mp->m_qflags & flags) == flags)
+		return XFS_ERROR(EEXIST);
+
+	/*
+	 * Change sb_qflags on disk but not incore mp->qflags
+	 * if this is the root filesystem.
+	 */
+	s = XFS_SB_LOCK(mp);
+	qf = mp->m_sb.sb_qflags;
+	mp->m_sb.sb_qflags = qf | flags;
+	XFS_SB_UNLOCK(mp, s);
+
+	/*
+	 * There's nothing to change if it's the same.
+	 */
+	if ((qf & flags) == flags && sbflags == 0)
+		return XFS_ERROR(EEXIST);
+	sbflags |= XFS_SB_QFLAGS;
+
+	if ((error = xfs_qm_write_sb_changes(mp, sbflags)))
+		return (error);
+	/*
+	 * If we aren't trying to switch on quota enforcement, we are done.
+	 */
+	if  (((mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) !=
+	     (mp->m_qflags & XFS_UQUOTA_ACCT)) ||
+	    (flags & XFS_ALL_QUOTA_ENFD) == 0)
+		return (0);
+
+	if (! XFS_IS_QUOTA_RUNNING(mp))
+		return XFS_ERROR(ESRCH);
+
+	/*
+	 * Switch on quota enforcement in core.
+	 */
+	mutex_lock(&(XFS_QI_QOFFLOCK(mp)), PINOD);
+	mp->m_qflags |= (flags & XFS_ALL_QUOTA_ENFD);
+	mutex_unlock(&(XFS_QI_QOFFLOCK(mp)));
+
+	return (0);
+}
+
+
+
+/*
+ * Return quota status information, such as uquota-off, enforcements, etc.
+ */
+STATIC int
+xfs_qm_scall_getqstat(
+	xfs_mount_t	*mp,
+	fs_quota_stat_t *out)
+{
+	xfs_inode_t	*uip, *gip;
+	boolean_t	tempuqip, tempgqip;
+
+	uip = gip = NULL;
+	tempuqip = tempgqip = B_FALSE;
+	memset(out, 0, sizeof(fs_quota_stat_t));
+
+	out->qs_version = FS_QSTAT_VERSION;
+	if (! XFS_SB_VERSION_HASQUOTA(&mp->m_sb)) {
+		out->qs_uquota.qfs_ino = NULLFSINO;
+		out->qs_gquota.qfs_ino = NULLFSINO;
+		return (0);
+	}
+	out->qs_flags = (__uint16_t) xfs_qm_export_flags(mp->m_qflags &
+							(XFS_ALL_QUOTA_ACCT|
+							 XFS_ALL_QUOTA_ENFD));
+	out->qs_pad = 0;
+	out->qs_uquota.qfs_ino = mp->m_sb.sb_uquotino;
+	out->qs_gquota.qfs_ino = mp->m_sb.sb_gquotino;
+
+	if (mp->m_quotainfo) {
+		uip = mp->m_quotainfo->qi_uquotaip;
+		gip = mp->m_quotainfo->qi_gquotaip;
+	}
+	if (!uip && mp->m_sb.sb_uquotino != NULLFSINO) {
+		if (xfs_iget(mp, NULL, mp->m_sb.sb_uquotino,
+					0, 0, &uip, 0) == 0)
+			tempuqip = B_TRUE;
+	}
+	if (!gip && mp->m_sb.sb_gquotino != NULLFSINO) {
+		if (xfs_iget(mp, NULL, mp->m_sb.sb_gquotino,
+					0, 0, &gip, 0) == 0)
+			tempgqip = B_TRUE;
+	}
+	if (uip) {
+		out->qs_uquota.qfs_nblks = uip->i_d.di_nblocks;
+		out->qs_uquota.qfs_nextents = uip->i_d.di_nextents;
+		if (tempuqip)
+			VN_RELE(XFS_ITOV(uip));
+	}
+	if (gip) {
+		out->qs_gquota.qfs_nblks = gip->i_d.di_nblocks;
+		out->qs_gquota.qfs_nextents = gip->i_d.di_nextents;
+		if (tempgqip)
+			VN_RELE(XFS_ITOV(gip));
+	}
+	if (mp->m_quotainfo) {
+		out->qs_incoredqs = XFS_QI_MPLNDQUOTS(mp);
+		out->qs_btimelimit = XFS_QI_BTIMELIMIT(mp);
+		out->qs_itimelimit = XFS_QI_ITIMELIMIT(mp);
+		out->qs_rtbtimelimit = XFS_QI_RTBTIMELIMIT(mp);
+		out->qs_bwarnlimit = XFS_QI_BWARNLIMIT(mp);
+		out->qs_iwarnlimit = XFS_QI_IWARNLIMIT(mp);
+	}
+	return (0);
+}
+
+/*
+ * Adjust quota limits, and start/stop timers accordingly.
+ */
+STATIC int
+xfs_qm_scall_setqlim(
+	xfs_mount_t		*mp,
+	xfs_dqid_t		id,
+	uint			type,
+	fs_disk_quota_t		*newlim)
+{
+	xfs_disk_dquot_t	*ddq;
+	xfs_dquot_t		*dqp;
+	xfs_trans_t		*tp;
+	int			error;
+	xfs_qcnt_t		hard, soft;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return XFS_ERROR(EPERM);
+
+	if ((newlim->d_fieldmask & (FS_DQ_LIMIT_MASK|FS_DQ_TIMER_MASK)) == 0)
+		return (0);
+
+	tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SETQLIM);
+	if ((error = xfs_trans_reserve(tp, 0, sizeof(xfs_disk_dquot_t) + 128,
+				      0, 0, XFS_DEFAULT_LOG_COUNT))) {
+		xfs_trans_cancel(tp, 0);
+		return (error);
+	}
+
+	/*
+	 * We don't want to race with a quotaoff so take the quotaoff lock.
+	 * (We don't hold an inode lock, so there's nothing else to stop
+	 * a quotaoff from happening). (XXXThis doesn't currently happen
+	 * because we take the vfslock before calling xfs_qm_sysent).
+	 */
+	mutex_lock(&(XFS_QI_QOFFLOCK(mp)), PINOD);
+
+	/*
+	 * Get the dquot (locked), and join it to the transaction.
+	 * Allocate the dquot if this doesn't exist.
+	 */
+	if ((error = xfs_qm_dqget(mp, NULL, id, type, XFS_QMOPT_DQALLOC, &dqp))) {
+		xfs_trans_cancel(tp, XFS_TRANS_ABORT);
+		mutex_unlock(&(XFS_QI_QOFFLOCK(mp)));
+		ASSERT(error != ENOENT);
+		return (error);
+	}
+	xfs_dqtrace_entry(dqp, "Q_SETQLIM: AFT DQGET");
+	xfs_trans_dqjoin(tp, dqp);
+	ddq = &dqp->q_core;
+
+	/*
+	 * Make sure that hardlimits are >= soft limits before changing.
+	 */
+	hard = (newlim->d_fieldmask & FS_DQ_BHARD) ?
+		(xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_blk_hardlimit) :
+			INT_GET(ddq->d_blk_hardlimit, ARCH_CONVERT);
+	soft = (newlim->d_fieldmask & FS_DQ_BSOFT) ?
+		(xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_blk_softlimit) :
+			INT_GET(ddq->d_blk_softlimit, ARCH_CONVERT);
+	if (hard == 0 || hard >= soft) {
+		INT_SET(ddq->d_blk_hardlimit, ARCH_CONVERT, hard);
+		INT_SET(ddq->d_blk_softlimit, ARCH_CONVERT, soft);
+		if (id == 0) {
+			mp->m_quotainfo->qi_bhardlimit = hard;
+			mp->m_quotainfo->qi_bsoftlimit = soft;
+		}
+	} else {
+		qdprintk("blkhard %Ld < blksoft %Ld\n", hard, soft);
+	}
+	hard = (newlim->d_fieldmask & FS_DQ_RTBHARD) ?
+		(xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_rtb_hardlimit) :
+			INT_GET(ddq->d_rtb_hardlimit, ARCH_CONVERT);
+	soft = (newlim->d_fieldmask & FS_DQ_RTBSOFT) ?
+		(xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_rtb_softlimit) :
+			INT_GET(ddq->d_rtb_softlimit, ARCH_CONVERT);
+	if (hard == 0 || hard >= soft) {
+		INT_SET(ddq->d_rtb_hardlimit, ARCH_CONVERT, hard);
+		INT_SET(ddq->d_rtb_softlimit, ARCH_CONVERT, soft);
+		if (id == 0) {
+			mp->m_quotainfo->qi_rtbhardlimit = hard;
+			mp->m_quotainfo->qi_rtbsoftlimit = soft;
+		}
+	} else {
+		qdprintk("rtbhard %Ld < rtbsoft %Ld\n", hard, soft);
+	}
+
+	hard = (newlim->d_fieldmask & FS_DQ_IHARD) ?
+		(xfs_qcnt_t) newlim->d_ino_hardlimit :
+			INT_GET(ddq->d_ino_hardlimit, ARCH_CONVERT);
+	soft = (newlim->d_fieldmask & FS_DQ_ISOFT) ?
+		(xfs_qcnt_t) newlim->d_ino_softlimit :
+			INT_GET(ddq->d_ino_softlimit, ARCH_CONVERT);
+	if (hard == 0 || hard >= soft) {
+		INT_SET(ddq->d_ino_hardlimit, ARCH_CONVERT, hard);
+		INT_SET(ddq->d_ino_softlimit, ARCH_CONVERT, soft);
+		if (id == 0) {
+			mp->m_quotainfo->qi_ihardlimit = hard;
+			mp->m_quotainfo->qi_isoftlimit = soft;
+		}
+	} else {
+		qdprintk("ihard %Ld < isoft %Ld\n", hard, soft);
+	}
+
+	if (id == 0) {
+		/*
+		 * Timelimits for the super user set the relative time
+		 * the other users can be over quota for this file system.
+		 * If it is zero a default is used.  Ditto for the default
+		 * soft and hard limit values (already done, above).
+		 */
+		if (newlim->d_fieldmask & FS_DQ_BTIMER) {
+			mp->m_quotainfo->qi_btimelimit = newlim->d_btimer;
+			INT_SET(ddq->d_btimer, ARCH_CONVERT, newlim->d_btimer);
+		}
+		if (newlim->d_fieldmask & FS_DQ_ITIMER) {
+			mp->m_quotainfo->qi_itimelimit = newlim->d_itimer;
+			INT_SET(ddq->d_itimer, ARCH_CONVERT, newlim->d_itimer);
+		}
+		if (newlim->d_fieldmask & FS_DQ_RTBTIMER) {
+			mp->m_quotainfo->qi_rtbtimelimit = newlim->d_rtbtimer;
+			INT_SET(ddq->d_rtbtimer, ARCH_CONVERT, newlim->d_rtbtimer);
+		}
+	} else /* if (XFS_IS_QUOTA_ENFORCED(mp)) */ {
+		/*
+		 * If the user is now over quota, start the timelimit.
+		 * The user will not be 'warned'.
+		 * Note that we keep the timers ticking, whether enforcement
+		 * is on or off. We don't really want to bother with iterating
+		 * over all ondisk dquots and turning the timers on/off.
+		 */
+		xfs_qm_adjust_dqtimers(mp, ddq);
+	}
+	dqp->dq_flags |= XFS_DQ_DIRTY;
+	xfs_trans_log_dquot(tp, dqp);
+
+	xfs_dqtrace_entry(dqp, "Q_SETQLIM: COMMIT");
+	xfs_trans_commit(tp, 0, NULL);
+	xfs_qm_dqprint(dqp);
+	xfs_qm_dqrele(dqp);
+	mutex_unlock(&(XFS_QI_QOFFLOCK(mp)));
+
+	return (0);
+}
+
+STATIC int
+xfs_qm_scall_getquota(
+	xfs_mount_t	*mp,
+	xfs_dqid_t	id,
+	uint		type,
+	fs_disk_quota_t *out)
+{
+	xfs_dquot_t	*dqp;
+	int		error;
+
+	/*
+	 * Try to get the dquot. We don't want it allocated on disk, so
+	 * we aren't passing the XFS_QMOPT_DOALLOC flag. If it doesn't
+	 * exist, we'll get ENOENT back.
+	 */
+	if ((error = xfs_qm_dqget(mp, NULL, id, type, 0, &dqp))) {
+		return (error);
+	}
+
+	xfs_dqtrace_entry(dqp, "Q_GETQUOTA SUCCESS");
+	/*
+	 * If everything's NULL, this dquot doesn't quite exist as far as
+	 * our utility programs are concerned.
+	 */
+	if (XFS_IS_DQUOT_UNINITIALIZED(dqp)) {
+		xfs_qm_dqput(dqp);
+		return XFS_ERROR(ENOENT);
+	}
+	/* xfs_qm_dqprint(dqp); */
+	/*
+	 * Convert the disk dquot to the exportable format
+	 */
+	xfs_qm_export_dquot(mp, &dqp->q_core, out);
+	xfs_qm_dqput(dqp);
+	return (error ? XFS_ERROR(EFAULT) : 0);
+}
+
+
+STATIC int
+xfs_qm_log_quotaoff_end(
+	xfs_mount_t		*mp,
+	xfs_qoff_logitem_t	*startqoff,
+	uint			flags)
+{
+	xfs_trans_t	       *tp;
+	int			error;
+	xfs_qoff_logitem_t     *qoffi;
+
+	tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QUOTAOFF_END);
+
+	if ((error = xfs_trans_reserve(tp, 0, sizeof(xfs_qoff_logitem_t) * 2,
+				      0, 0, XFS_DEFAULT_LOG_COUNT))) {
+		xfs_trans_cancel(tp, 0);
+		return (error);
+	}
+
+	qoffi = xfs_trans_get_qoff_item(tp, startqoff,
+					flags & XFS_ALL_QUOTA_ACCT);
+	xfs_trans_log_quotaoff_item(tp, qoffi);
+
+	/*
+	 * We have to make sure that the transaction is secure on disk before we
+	 * return and actually stop quota accounting. So, make it synchronous.
+	 * We don't care about quotoff's performance.
+	 */
+	xfs_trans_set_sync(tp);
+	error = xfs_trans_commit(tp, 0, NULL);
+	return (error);
+}
+
+
+STATIC int
+xfs_qm_log_quotaoff(
+	xfs_mount_t	       *mp,
+	xfs_qoff_logitem_t     **qoffstartp,
+	uint		       flags)
+{
+	xfs_trans_t	       *tp;
+	int			error;
+	unsigned long	s;
+	xfs_qoff_logitem_t     *qoffi=NULL;
+	uint			oldsbqflag=0;
+
+	tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QUOTAOFF);
+	if ((error = xfs_trans_reserve(tp, 0,
+				      sizeof(xfs_qoff_logitem_t) * 2 +
+				      mp->m_sb.sb_sectsize + 128,
+				      0,
+				      0,
+				      XFS_DEFAULT_LOG_COUNT))) {
+		goto error0;
+	}
+
+	qoffi = xfs_trans_get_qoff_item(tp, NULL, flags & XFS_ALL_QUOTA_ACCT);
+	xfs_trans_log_quotaoff_item(tp, qoffi);
+
+	s = XFS_SB_LOCK(mp);
+	oldsbqflag = mp->m_sb.sb_qflags;
+	mp->m_sb.sb_qflags = (mp->m_qflags & ~(flags)) & XFS_MOUNT_QUOTA_ALL;
+	XFS_SB_UNLOCK(mp, s);
+
+	xfs_mod_sb(tp, XFS_SB_QFLAGS);
+
+	/*
+	 * We have to make sure that the transaction is secure on disk before we
+	 * return and actually stop quota accounting. So, make it synchronous.
+	 * We don't care about quotoff's performance.
+	 */
+	xfs_trans_set_sync(tp);
+	error = xfs_trans_commit(tp, 0, NULL);
+
+error0:
+	if (error) {
+		xfs_trans_cancel(tp, 0);
+		/*
+		 * No one else is modifying sb_qflags, so this is OK.
+		 * We still hold the quotaofflock.
+		 */
+		s = XFS_SB_LOCK(mp);
+		mp->m_sb.sb_qflags = oldsbqflag;
+		XFS_SB_UNLOCK(mp, s);
+	}
+	*qoffstartp = qoffi;
+	return (error);
+}
+
+
+/*
+ * Translate an internal style on-disk-dquot to the exportable format.
+ * The main differences are that the counters/limits are all in Basic
+ * Blocks (BBs) instead of the internal FSBs, and all on-disk data has
+ * to be converted to the native endianness.
+ */
+STATIC void
+xfs_qm_export_dquot(
+	xfs_mount_t		*mp,
+	xfs_disk_dquot_t	*src,
+	struct fs_disk_quota	*dst)
+{
+	memset(dst, 0, sizeof(*dst));
+	dst->d_version = FS_DQUOT_VERSION;  /* different from src->d_version */
+	dst->d_flags =
+		xfs_qm_export_qtype_flags(INT_GET(src->d_flags, ARCH_CONVERT));
+	dst->d_id = INT_GET(src->d_id, ARCH_CONVERT);
+	dst->d_blk_hardlimit = (__uint64_t)
+		XFS_FSB_TO_BB(mp, INT_GET(src->d_blk_hardlimit, ARCH_CONVERT));
+	dst->d_blk_softlimit = (__uint64_t)
+		XFS_FSB_TO_BB(mp, INT_GET(src->d_blk_softlimit, ARCH_CONVERT));
+	dst->d_ino_hardlimit = (__uint64_t)
+		INT_GET(src->d_ino_hardlimit, ARCH_CONVERT);
+	dst->d_ino_softlimit = (__uint64_t)
+		INT_GET(src->d_ino_softlimit, ARCH_CONVERT);
+	dst->d_bcount = (__uint64_t)
+		XFS_FSB_TO_BB(mp, INT_GET(src->d_bcount, ARCH_CONVERT));
+	dst->d_icount = (__uint64_t) INT_GET(src->d_icount, ARCH_CONVERT);
+	dst->d_btimer = (__uint32_t) INT_GET(src->d_btimer, ARCH_CONVERT);
+	dst->d_itimer = (__uint32_t) INT_GET(src->d_itimer, ARCH_CONVERT);
+	dst->d_iwarns = INT_GET(src->d_iwarns, ARCH_CONVERT);
+	dst->d_bwarns = INT_GET(src->d_bwarns, ARCH_CONVERT);
+
+	dst->d_rtb_hardlimit = (__uint64_t)
+		XFS_FSB_TO_BB(mp, INT_GET(src->d_rtb_hardlimit, ARCH_CONVERT));
+	dst->d_rtb_softlimit = (__uint64_t)
+		XFS_FSB_TO_BB(mp, INT_GET(src->d_rtb_softlimit, ARCH_CONVERT));
+	dst->d_rtbcount = (__uint64_t)
+		XFS_FSB_TO_BB(mp, INT_GET(src->d_rtbcount, ARCH_CONVERT));
+	dst->d_rtbtimer = (__uint32_t) INT_GET(src->d_rtbtimer, ARCH_CONVERT);
+	dst->d_rtbwarns = INT_GET(src->d_rtbwarns, ARCH_CONVERT);
+
+	/*
+	 * Internally, we don't reset all the timers when quota enforcement
+	 * gets turned off. No need to confuse the userlevel code,
+	 * so return zeroes in that case.
+	 */
+	if (! XFS_IS_QUOTA_ENFORCED(mp)) {
+		dst->d_btimer = 0;
+		dst->d_itimer = 0;
+		dst->d_rtbtimer = 0;
+	}
+
+#ifdef DEBUG
+	if (XFS_IS_QUOTA_ENFORCED(mp) && dst->d_id != 0) {
+		if (((int) dst->d_bcount >= (int) dst->d_blk_softlimit) &&
+		    (dst->d_blk_softlimit > 0)) {
+			ASSERT(dst->d_btimer != 0);
+		}
+		if (((int) dst->d_icount >= (int) dst->d_ino_softlimit) &&
+		    (dst->d_ino_softlimit > 0)) {
+			ASSERT(dst->d_itimer != 0);
+		}
+	}
+#endif
+}
+
+STATIC uint
+xfs_qm_import_qtype_flags(
+	uint uflags)
+{
+	/*
+	 * Can't be both at the same time.
+	 */
+	if (((uflags & (XFS_GROUP_QUOTA | XFS_USER_QUOTA)) ==
+	     (XFS_GROUP_QUOTA | XFS_USER_QUOTA)) ||
+	    ((uflags & (XFS_GROUP_QUOTA | XFS_USER_QUOTA)) == 0))
+		return (0);
+
+	return (uflags & XFS_USER_QUOTA) ?
+		XFS_DQ_USER : XFS_DQ_GROUP;
+}
+
+STATIC uint
+xfs_qm_export_qtype_flags(
+	uint flags)
+{
+	/*
+	 * Can't be both at the same time.
+	 */
+	ASSERT((flags & (XFS_GROUP_QUOTA | XFS_USER_QUOTA)) !=
+		(XFS_GROUP_QUOTA | XFS_USER_QUOTA));
+	ASSERT((flags & (XFS_GROUP_QUOTA | XFS_USER_QUOTA)) != 0);
+
+	return (flags & XFS_DQ_USER) ?
+		XFS_USER_QUOTA : XFS_GROUP_QUOTA;
+}
+
+STATIC uint
+xfs_qm_import_flags(
+	uint uflags)
+{
+	uint flags = 0;
+
+	if (uflags & XFS_QUOTA_UDQ_ACCT)
+		flags |= XFS_UQUOTA_ACCT;
+	if (uflags & XFS_QUOTA_GDQ_ACCT)
+		flags |= XFS_GQUOTA_ACCT;
+	if (uflags & XFS_QUOTA_UDQ_ENFD)
+		flags |= XFS_UQUOTA_ENFD;
+	if (uflags & XFS_QUOTA_GDQ_ENFD)
+		flags |= XFS_GQUOTA_ENFD;
+	return (flags);
+}
+
+
+STATIC uint
+xfs_qm_export_flags(
+	uint flags)
+{
+	uint uflags;
+
+	uflags = 0;
+	if (flags & XFS_UQUOTA_ACCT)
+		uflags |= XFS_QUOTA_UDQ_ACCT;
+	if (flags & XFS_GQUOTA_ACCT)
+		uflags |= XFS_QUOTA_GDQ_ACCT;
+	if (flags & XFS_UQUOTA_ENFD)
+		uflags |= XFS_QUOTA_UDQ_ENFD;
+	if (flags & XFS_GQUOTA_ENFD)
+		uflags |= XFS_QUOTA_GDQ_ENFD;
+	return (uflags);
+}
+
+
+/*
+ * Go thru all the inodes in the file system, releasing their dquots.
+ * Note that the mount structure gets modified to indicate that quotas are off
+ * AFTER this, in the case of quotaoff. This also gets called from
+ * xfs_rootumount.
+ */
+void
+xfs_qm_dqrele_all_inodes(
+	struct xfs_mount *mp,
+	uint		 flags)
+{
+	vmap_t		vmap;
+	xfs_inode_t	*ip, *topino;
+	uint		ireclaims;
+	vnode_t		*vp;
+	boolean_t	vnode_refd;
+
+	ASSERT(mp->m_quotainfo);
+
+again:
+	XFS_MOUNT_ILOCK(mp);
+	ip = mp->m_inodes;
+	if (ip == NULL) {
+		XFS_MOUNT_IUNLOCK(mp);
+		return;
+	}
+	do {
+		/* Skip markers inserted by xfs_sync */
+		if (ip->i_mount == NULL) {
+			ip = ip->i_mnext;
+			continue;
+		}
+		/* Root inode, rbmip and rsumip have associated blocks */
+		if (ip == XFS_QI_UQIP(mp) || ip == XFS_QI_GQIP(mp)) {
+			ASSERT(ip->i_udquot == NULL);
+			ASSERT(ip->i_gdquot == NULL);
+			ip = ip->i_mnext;
+			continue;
+		}
+		vp = XFS_ITOV_NULL(ip);
+		if (!vp) {
+			ASSERT(ip->i_udquot == NULL);
+			ASSERT(ip->i_gdquot == NULL);
+			ip = ip->i_mnext;
+			continue;
+		}
+		vnode_refd = B_FALSE;
+		if (xfs_ilock_nowait(ip, XFS_ILOCK_EXCL) == 0) {
+			/*
+			 * Sample vp mapping while holding the mplock, lest
+			 * we come across a non-existent vnode.
+			 */
+			VMAP(vp, vmap);
+			ireclaims = mp->m_ireclaims;
+			topino = mp->m_inodes;
+			XFS_MOUNT_IUNLOCK(mp);
+
+			/* XXX restart limit ? */
+			if ( ! (vp = vn_get(vp, &vmap)))
+				goto again;
+			xfs_ilock(ip, XFS_ILOCK_EXCL);
+			vnode_refd = B_TRUE;
+		} else {
+			ireclaims = mp->m_ireclaims;
+			topino = mp->m_inodes;
+			XFS_MOUNT_IUNLOCK(mp);
+		}
+
+		/*
+		 * We don't keep the mountlock across the dqrele() call,
+		 * since it can take a while..
+		 */
+		if ((flags & XFS_UQUOTA_ACCT) && ip->i_udquot) {
+			xfs_qm_dqrele(ip->i_udquot);
+			ip->i_udquot = NULL;
+		}
+		if ((flags & XFS_GQUOTA_ACCT) && ip->i_gdquot) {
+			xfs_qm_dqrele(ip->i_gdquot);
+			ip->i_gdquot = NULL;
+		}
+		xfs_iunlock(ip, XFS_ILOCK_EXCL);
+		/*
+		 * Wait until we've dropped the ilock and mountlock to
+		 * do the vn_rele. Or be condemned to an eternity in the
+		 * inactive code in hell.
+		 */
+		if (vnode_refd)
+			VN_RELE(vp);
+		XFS_MOUNT_ILOCK(mp);
+		/*
+		 * If an inode was inserted or removed, we gotta
+		 * start over again.
+		 */
+		if (topino != mp->m_inodes || mp->m_ireclaims != ireclaims) {
+			/* XXX use a sentinel */
+			XFS_MOUNT_IUNLOCK(mp);
+			goto again;
+		}
+		ip = ip->i_mnext;
+	} while (ip != mp->m_inodes);
+
+	XFS_MOUNT_IUNLOCK(mp);
+}
+
+/*------------------------------------------------------------------------*/
+#ifdef DEBUG
+/*
+ * This contains all the test functions for XFS disk quotas.
+ * Currently it does a quota accounting check. ie. it walks through
+ * all inodes in the file system, calculating the dquot accounting fields,
+ * and prints out any inconsistencies.
+ */
+xfs_dqhash_t *qmtest_udqtab;
+xfs_dqhash_t *qmtest_gdqtab;
+int	      qmtest_hashmask;
+int	      qmtest_nfails;
+mutex_t	      qcheck_lock;
+
+#define DQTEST_HASHVAL(mp, id) (((__psunsigned_t)(mp) + \
+				 (__psunsigned_t)(id)) & \
+				(qmtest_hashmask - 1))
+
+#define DQTEST_HASH(mp, id, type)   ((type & XFS_DQ_USER) ? \
+				     (qmtest_udqtab + \
+				      DQTEST_HASHVAL(mp, id)) : \
+				     (qmtest_gdqtab + \
+				      DQTEST_HASHVAL(mp, id)))
+
+#define DQTEST_LIST_PRINT(l, NXT, title) \
+{ \
+	  xfs_dqtest_t	*dqp; int i = 0;\
+	  cmn_err(CE_DEBUG, "%s (#%d)", title, (int) (l)->qh_nelems); \
+	  for (dqp = (xfs_dqtest_t *)(l)->qh_next; dqp != NULL; \
+	       dqp = (xfs_dqtest_t *)dqp->NXT) { \
+		cmn_err(CE_DEBUG, "  %d. \"%d (%s)\"  bcnt = %d, icnt = %d", \
+			 ++i, dqp->d_id, DQFLAGTO_TYPESTR(dqp),	     \
+			 dqp->d_bcount, dqp->d_icount); } \
+}
+
+typedef struct dqtest {
+	xfs_dqmarker_t	q_lists;
+	xfs_dqhash_t	*q_hash;	/* the hashchain header */
+	xfs_mount_t	*q_mount;	/* filesystem this relates to */
+	xfs_dqid_t	d_id;		/* user id or group id */
+	xfs_qcnt_t	d_bcount;	/* # disk blocks owned by the user */
+	xfs_qcnt_t	d_icount;	/* # inodes owned by the user */
+} xfs_dqtest_t;
+
+STATIC void
+xfs_qm_hashinsert(xfs_dqhash_t *h, xfs_dqtest_t *dqp)
+{
+	xfs_dquot_t *d;
+	if (((d) = (h)->qh_next))
+		(d)->HL_PREVP = &((dqp)->HL_NEXT);
+	(dqp)->HL_NEXT = d;
+	(dqp)->HL_PREVP = &((h)->qh_next);
+	(h)->qh_next = (xfs_dquot_t *)dqp;
+	(h)->qh_version++;
+	(h)->qh_nelems++;
+}
+STATIC void
+xfs_qm_dqtest_print(
+	xfs_dqtest_t	*d)
+{
+	cmn_err(CE_DEBUG, "-----------DQTEST DQUOT----------------");
+	cmn_err(CE_DEBUG, "---- dquot ID = %d", d->d_id);
+	cmn_err(CE_DEBUG, "---- type     = %s", XFS_QM_ISUDQ(d)? "USR" : "GRP");
+	cmn_err(CE_DEBUG, "---- fs       = 0x%p", d->q_mount);
+	cmn_err(CE_DEBUG, "---- bcount   = %Lu (0x%x)",
+		d->d_bcount, (int)d->d_bcount);
+	cmn_err(CE_DEBUG, "---- icount   = %Lu (0x%x)",
+		d->d_icount, (int)d->d_icount);
+	cmn_err(CE_DEBUG, "---------------------------");
+}
+
+STATIC void
+xfs_qm_dqtest_failed(
+	xfs_dqtest_t	*d,
+	xfs_dquot_t	*dqp,
+	char		*reason,
+	xfs_qcnt_t	a,
+	xfs_qcnt_t	b,
+	int		error)
+{
+	qmtest_nfails++;
+	if (error)
+		cmn_err(CE_DEBUG, "quotacheck failed id=%d, err=%d\nreason: %s",
+		       INT_GET(d->d_id, ARCH_CONVERT), error, reason);
+	else
+		cmn_err(CE_DEBUG, "quotacheck failed id=%d (%s) [%d != %d]",
+		       INT_GET(d->d_id, ARCH_CONVERT), reason, (int)a, (int)b);
+	xfs_qm_dqtest_print(d);
+	if (dqp)
+		xfs_qm_dqprint(dqp);
+}
+
+STATIC int
+xfs_dqtest_cmp2(
+	xfs_dqtest_t	*d,
+	xfs_dquot_t	*dqp)
+{
+	int err = 0;
+	if (INT_GET(dqp->q_core.d_icount, ARCH_CONVERT) != d->d_icount) {
+		xfs_qm_dqtest_failed(d, dqp, "icount mismatch",
+			INT_GET(dqp->q_core.d_icount, ARCH_CONVERT),
+			d->d_icount, 0);
+		err++;
+	}
+	if (INT_GET(dqp->q_core.d_bcount, ARCH_CONVERT) != d->d_bcount) {
+		xfs_qm_dqtest_failed(d, dqp, "bcount mismatch",
+			INT_GET(dqp->q_core.d_bcount, ARCH_CONVERT),
+			d->d_bcount, 0);
+		err++;
+	}
+	if (INT_GET(dqp->q_core.d_blk_softlimit, ARCH_CONVERT) &&
+	    INT_GET(dqp->q_core.d_bcount, ARCH_CONVERT) >=
+	    INT_GET(dqp->q_core.d_blk_softlimit, ARCH_CONVERT)) {
+		if (INT_ISZERO(dqp->q_core.d_btimer, ARCH_CONVERT) &&
+		    !INT_ISZERO(dqp->q_core.d_id, ARCH_CONVERT)) {
+			cmn_err(CE_DEBUG,
+				"%d [%s] [0x%p] BLK TIMER NOT STARTED",
+				d->d_id, DQFLAGTO_TYPESTR(d), d->q_mount);
+			err++;
+		}
+	}
+	if (INT_GET(dqp->q_core.d_ino_softlimit, ARCH_CONVERT) &&
+	    INT_GET(dqp->q_core.d_icount, ARCH_CONVERT) >=
+	    INT_GET(dqp->q_core.d_ino_softlimit, ARCH_CONVERT)) {
+		if (INT_ISZERO(dqp->q_core.d_itimer, ARCH_CONVERT) &&
+		    !INT_ISZERO(dqp->q_core.d_id, ARCH_CONVERT)) {
+			cmn_err(CE_DEBUG,
+				"%d [%s] [0x%p] INO TIMER NOT STARTED",
+				d->d_id, DQFLAGTO_TYPESTR(d), d->q_mount);
+			err++;
+		}
+	}
+#ifdef QUOTADEBUG
+	if (!err) {
+		cmn_err(CE_DEBUG, "%d [%s] [0x%p] qchecked",
+			d->d_id, XFS_QM_ISUDQ(d) ? "USR" : "GRP", d->q_mount);
+	}
+#endif
+	return (err);
+}
+
+STATIC void
+xfs_dqtest_cmp(
+	xfs_dqtest_t	*d)
+{
+	xfs_dquot_t	*dqp;
+	int		error;
+
+	/* xfs_qm_dqtest_print(d); */
+	if ((error = xfs_qm_dqget(d->q_mount, NULL, d->d_id, d->dq_flags, 0,
+				 &dqp))) {
+		xfs_qm_dqtest_failed(d, NULL, "dqget failed", 0, 0, error);
+		return;
+	}
+	xfs_dqtest_cmp2(d, dqp);
+	xfs_qm_dqput(dqp);
+}
+
+STATIC int
+xfs_qm_internalqcheck_dqget(
+	xfs_mount_t	*mp,
+	xfs_dqid_t	id,
+	uint		type,
+	xfs_dqtest_t	**O_dq)
+{
+	xfs_dqtest_t	*d;
+	xfs_dqhash_t	*h;
+
+	h = DQTEST_HASH(mp, id, type);
+	for (d = (xfs_dqtest_t *) h->qh_next; d != NULL;
+	     d = (xfs_dqtest_t *) d->HL_NEXT) {
+		/* DQTEST_LIST_PRINT(h, HL_NEXT, "@@@@@ dqtestlist @@@@@"); */
+		if (d->d_id == id && mp == d->q_mount) {
+			*O_dq = d;
+			return (0);
+		}
+	}
+	d = kmem_zalloc(sizeof(xfs_dqtest_t), KM_SLEEP);
+	d->dq_flags = type;
+	d->d_id = id;
+	d->q_mount = mp;
+	d->q_hash = h;
+	xfs_qm_hashinsert(h, d);
+	*O_dq = d;
+	return (0);
+}
+
+STATIC void
+xfs_qm_internalqcheck_get_dquots(
+	xfs_mount_t	*mp,
+	xfs_dqid_t	uid,
+	xfs_dqid_t	gid,
+	xfs_dqtest_t	**ud,
+	xfs_dqtest_t	**gd)
+{
+	if (XFS_IS_UQUOTA_ON(mp))
+		xfs_qm_internalqcheck_dqget(mp, uid, XFS_DQ_USER, ud);
+	if (XFS_IS_GQUOTA_ON(mp))
+		xfs_qm_internalqcheck_dqget(mp, gid, XFS_DQ_GROUP, gd);
+}
+
+
+STATIC void
+xfs_qm_internalqcheck_dqadjust(
+	xfs_inode_t		*ip,
+	xfs_dqtest_t		*d)
+{
+	d->d_icount++;
+	d->d_bcount += (xfs_qcnt_t)ip->i_d.di_nblocks;
+}
+
+STATIC int
+xfs_qm_internalqcheck_adjust(
+	xfs_mount_t	*mp,		/* mount point for filesystem */
+	xfs_ino_t	ino,		/* inode number to get data for */
+	void		__user *buffer,	/* not used */
+	int		ubsize,		/* not used */
+	void		*private_data,	/* not used */
+	xfs_daddr_t	bno,		/* starting block of inode cluster */
+	int		*ubused,	/* not used */
+	void		*dip,		/* not used */
+	int		*res)		/* bulkstat result code */
+{
+	xfs_inode_t		*ip;
+	xfs_dqtest_t		*ud, *gd;
+	uint			lock_flags;
+	boolean_t		ipreleased;
+	int			error;
+
+	ASSERT(XFS_IS_QUOTA_RUNNING(mp));
+
+	if (ino == mp->m_sb.sb_uquotino || ino == mp->m_sb.sb_gquotino) {
+		*res = BULKSTAT_RV_NOTHING;
+		qdprintk("internalqcheck: ino=%llu, uqino=%llu, gqino=%llu\n",
+			(unsigned long long) ino,
+			(unsigned long long) mp->m_sb.sb_uquotino,
+			(unsigned long long) mp->m_sb.sb_gquotino);
+		return XFS_ERROR(EINVAL);
+	}
+	ipreleased = B_FALSE;
+ again:
+	lock_flags = XFS_ILOCK_SHARED;
+	if ((error = xfs_iget(mp, NULL, ino, 0, lock_flags, &ip, bno))) {
+		*res = BULKSTAT_RV_NOTHING;
+		return (error);
+	}
+
+	if (ip->i_d.di_mode == 0) {
+		xfs_iput_new(ip, lock_flags);
+		*res = BULKSTAT_RV_NOTHING;
+		return XFS_ERROR(ENOENT);
+	}
+
+	/*
+	 * This inode can have blocks after eof which can get released
+	 * when we send it to inactive. Since we don't check the dquot
+	 * until the after all our calculations are done, we must get rid
+	 * of those now.
+	 */
+	if (! ipreleased) {
+		xfs_iput(ip, lock_flags);
+		ipreleased = B_TRUE;
+		goto again;
+	}
+	xfs_qm_internalqcheck_get_dquots(mp,
+					(xfs_dqid_t) ip->i_d.di_uid,
+					(xfs_dqid_t) ip->i_d.di_gid,
+					&ud, &gd);
+	if (XFS_IS_UQUOTA_ON(mp)) {
+		ASSERT(ud);
+		xfs_qm_internalqcheck_dqadjust(ip, ud);
+	}
+	if (XFS_IS_GQUOTA_ON(mp)) {
+		ASSERT(gd);
+		xfs_qm_internalqcheck_dqadjust(ip, gd);
+	}
+	xfs_iput(ip, lock_flags);
+	*res = BULKSTAT_RV_DIDONE;
+	return (0);
+}
+
+
+/* PRIVATE, debugging */
+int
+xfs_qm_internalqcheck(
+	xfs_mount_t	*mp)
+{
+	xfs_ino_t	lastino;
+	int		done, count;
+	int		i;
+	xfs_dqtest_t	*d, *e;
+	xfs_dqhash_t	*h1;
+	int		error;
+
+	lastino = 0;
+	qmtest_hashmask = 32;
+	count = 5;
+	done = 0;
+	qmtest_nfails = 0;
+
+	if (! XFS_IS_QUOTA_ON(mp))
+		return XFS_ERROR(ESRCH);
+
+	xfs_log_force(mp, (xfs_lsn_t)0, XFS_LOG_FORCE | XFS_LOG_SYNC);
+	XFS_bflush(mp->m_ddev_targp);
+	xfs_log_force(mp, (xfs_lsn_t)0, XFS_LOG_FORCE | XFS_LOG_SYNC);
+	XFS_bflush(mp->m_ddev_targp);
+
+	mutex_lock(&qcheck_lock, PINOD);
+	/* There should be absolutely no quota activity while this
+	   is going on. */
+	qmtest_udqtab = kmem_zalloc(qmtest_hashmask *
+				    sizeof(xfs_dqhash_t), KM_SLEEP);
+	qmtest_gdqtab = kmem_zalloc(qmtest_hashmask *
+				    sizeof(xfs_dqhash_t), KM_SLEEP);
+	do {
+		/*
+		 * Iterate thru all the inodes in the file system,
+		 * adjusting the corresponding dquot counters
+		 */
+		if ((error = xfs_bulkstat(mp, &lastino, &count,
+				 xfs_qm_internalqcheck_adjust, NULL,
+				 0, NULL, BULKSTAT_FG_IGET, &done))) {
+			break;
+		}
+	} while (! done);
+	if (error) {
+		cmn_err(CE_DEBUG, "Bulkstat returned error 0x%x", error);
+	}
+	cmn_err(CE_DEBUG, "Checking results against system dquots");
+	for (i = 0; i < qmtest_hashmask; i++) {
+		h1 = &qmtest_udqtab[i];
+		for (d = (xfs_dqtest_t *) h1->qh_next; d != NULL; ) {
+			xfs_dqtest_cmp(d);
+			e = (xfs_dqtest_t *) d->HL_NEXT;
+			kmem_free(d, sizeof(xfs_dqtest_t));
+			d = e;
+		}
+		h1 = &qmtest_gdqtab[i];
+		for (d = (xfs_dqtest_t *) h1->qh_next; d != NULL; ) {
+			xfs_dqtest_cmp(d);
+			e = (xfs_dqtest_t *) d->HL_NEXT;
+			kmem_free(d, sizeof(xfs_dqtest_t));
+			d = e;
+		}
+	}
+
+	if (qmtest_nfails) {
+		cmn_err(CE_DEBUG, "******** quotacheck failed  ********");
+		cmn_err(CE_DEBUG, "failures = %d", qmtest_nfails);
+	} else {
+		cmn_err(CE_DEBUG, "******** quotacheck successful! ********");
+	}
+	kmem_free(qmtest_udqtab, qmtest_hashmask * sizeof(xfs_dqhash_t));
+	kmem_free(qmtest_gdqtab, qmtest_hashmask * sizeof(xfs_dqhash_t));
+	mutex_unlock(&qcheck_lock);
+	return (qmtest_nfails);
+}
+
+#endif /* DEBUG */
diff --git a/fs/xfs/quota/xfs_quota_priv.h b/fs/xfs/quota/xfs_quota_priv.h
new file mode 100644
index 00000000000000..eeda93a2b95108
--- /dev/null
+++ b/fs/xfs/quota/xfs_quota_priv.h
@@ -0,0 +1,192 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.	 Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_QUOTA_PRIV_H__
+#define __XFS_QUOTA_PRIV_H__
+
+/*
+ * Number of bmaps that we ask from bmapi when doing a quotacheck.
+ * We make this restriction to keep the memory usage to a minimum.
+ */
+#define XFS_DQITER_MAP_SIZE	10
+
+/* Number of dquots that fit in to a dquot block */
+#define XFS_QM_DQPERBLK(mp)	((mp)->m_quotainfo->qi_dqperchunk)
+
+#define XFS_ISLOCKED_INODE(ip)		(ismrlocked(&(ip)->i_lock, \
+					    MR_UPDATE | MR_ACCESS) != 0)
+#define XFS_ISLOCKED_INODE_EXCL(ip)	(ismrlocked(&(ip)->i_lock, \
+					    MR_UPDATE) != 0)
+
+#define XFS_DQ_IS_ADDEDTO_TRX(t, d)	((d)->q_transp == (t))
+
+#define XFS_QI_MPLRECLAIMS(mp)	((mp)->m_quotainfo->qi_dqreclaims)
+#define XFS_QI_UQIP(mp)		((mp)->m_quotainfo->qi_uquotaip)
+#define XFS_QI_GQIP(mp)		((mp)->m_quotainfo->qi_gquotaip)
+#define XFS_QI_DQCHUNKLEN(mp)	((mp)->m_quotainfo->qi_dqchunklen)
+#define XFS_QI_BTIMELIMIT(mp)	((mp)->m_quotainfo->qi_btimelimit)
+#define XFS_QI_RTBTIMELIMIT(mp) ((mp)->m_quotainfo->qi_rtbtimelimit)
+#define XFS_QI_ITIMELIMIT(mp)	((mp)->m_quotainfo->qi_itimelimit)
+#define XFS_QI_BWARNLIMIT(mp)	((mp)->m_quotainfo->qi_bwarnlimit)
+#define XFS_QI_IWARNLIMIT(mp)	((mp)->m_quotainfo->qi_iwarnlimit)
+#define XFS_QI_QOFFLOCK(mp)	((mp)->m_quotainfo->qi_quotaofflock)
+
+#define XFS_QI_MPL_LIST(mp)	((mp)->m_quotainfo->qi_dqlist)
+#define XFS_QI_MPLLOCK(mp)	((mp)->m_quotainfo->qi_dqlist.qh_lock)
+#define XFS_QI_MPLNEXT(mp)	((mp)->m_quotainfo->qi_dqlist.qh_next)
+#define XFS_QI_MPLNDQUOTS(mp)	((mp)->m_quotainfo->qi_dqlist.qh_nelems)
+
+#define XQMLCK(h)			(mutex_lock(&((h)->qh_lock), PINOD))
+#define XQMUNLCK(h)			(mutex_unlock(&((h)->qh_lock)))
+#ifdef DEBUG
+struct xfs_dqhash;
+static inline int XQMISLCKD(struct xfs_dqhash *h)
+{
+	if (mutex_trylock(&h->qh_lock)) {
+		mutex_unlock(&h->qh_lock);
+		return 0;
+	}
+	return 1;
+}
+#endif
+
+#define XFS_DQ_HASH_LOCK(h)		XQMLCK(h)
+#define XFS_DQ_HASH_UNLOCK(h)		XQMUNLCK(h)
+#define XFS_DQ_IS_HASH_LOCKED(h)	XQMISLCKD(h)
+
+#define xfs_qm_mplist_lock(mp)		XQMLCK(&(XFS_QI_MPL_LIST(mp)))
+#define xfs_qm_mplist_unlock(mp)	XQMUNLCK(&(XFS_QI_MPL_LIST(mp)))
+#define XFS_QM_IS_MPLIST_LOCKED(mp)	XQMISLCKD(&(XFS_QI_MPL_LIST(mp)))
+
+#define xfs_qm_freelist_lock(qm)	XQMLCK(&((qm)->qm_dqfreelist))
+#define xfs_qm_freelist_unlock(qm)	XQMUNLCK(&((qm)->qm_dqfreelist))
+#define XFS_QM_IS_FREELIST_LOCKED(qm)	XQMISLCKD(&((qm)->qm_dqfreelist))
+
+/*
+ * Hash into a bucket in the dquot hash table, based on <mp, id>.
+ */
+#define XFS_DQ_HASHVAL(mp, id) (((__psunsigned_t)(mp) + \
+				 (__psunsigned_t)(id)) & \
+				(xfs_Gqm->qm_dqhashmask - 1))
+#define XFS_DQ_HASH(mp, id, type)   (type == XFS_DQ_USER ? \
+				     (xfs_Gqm->qm_usr_dqhtable + \
+				      XFS_DQ_HASHVAL(mp, id)) : \
+				     (xfs_Gqm->qm_grp_dqhtable + \
+				      XFS_DQ_HASHVAL(mp, id)))
+#define XFS_IS_DQTYPE_ON(mp, type)   (type == XFS_DQ_USER ? \
+				      XFS_IS_UQUOTA_ON(mp):XFS_IS_GQUOTA_ON(mp))
+#define XFS_IS_DQUOT_UNINITIALIZED(dqp) ( \
+	INT_ISZERO(dqp->q_core.d_blk_hardlimit, ARCH_CONVERT) && \
+	INT_ISZERO(dqp->q_core.d_blk_softlimit, ARCH_CONVERT) && \
+	INT_ISZERO(dqp->q_core.d_rtb_hardlimit, ARCH_CONVERT) && \
+	INT_ISZERO(dqp->q_core.d_rtb_softlimit, ARCH_CONVERT) && \
+	INT_ISZERO(dqp->q_core.d_ino_hardlimit, ARCH_CONVERT) && \
+	INT_ISZERO(dqp->q_core.d_ino_softlimit, ARCH_CONVERT) && \
+	INT_ISZERO(dqp->q_core.d_bcount, ARCH_CONVERT)	      && \
+	INT_ISZERO(dqp->q_core.d_rtbcount, ARCH_CONVERT)      && \
+	INT_ISZERO(dqp->q_core.d_icount, ARCH_CONVERT))
+
+#define HL_PREVP	dq_hashlist.ql_prevp
+#define HL_NEXT		dq_hashlist.ql_next
+#define MPL_PREVP	dq_mplist.ql_prevp
+#define MPL_NEXT	dq_mplist.ql_next
+
+
+#define _LIST_REMOVE(h, dqp, PVP, NXT)				\
+	{							\
+		 xfs_dquot_t *d;				\
+		 if (((d) = (dqp)->NXT))				\
+			 (d)->PVP = (dqp)->PVP;			\
+		 *((dqp)->PVP) = d;				\
+		 (dqp)->NXT = NULL;				\
+		 (dqp)->PVP = NULL;				\
+		 (h)->qh_version++;				\
+		 (h)->qh_nelems--;				\
+	}
+
+#define _LIST_INSERT(h, dqp, PVP, NXT)				\
+	{							\
+		 xfs_dquot_t *d;				\
+		 if (((d) = (h)->qh_next))			\
+			 (d)->PVP = &((dqp)->NXT);		\
+		 (dqp)->NXT = d;				\
+		 (dqp)->PVP = &((h)->qh_next);			\
+		 (h)->qh_next = dqp;				\
+		 (h)->qh_version++;				\
+		 (h)->qh_nelems++;				\
+	 }
+
+#define FOREACH_DQUOT_IN_MP(dqp, mp) \
+	for ((dqp) = XFS_QI_MPLNEXT(mp); (dqp) != NULL; (dqp) = (dqp)->MPL_NEXT)
+
+#define FOREACH_DQUOT_IN_FREELIST(dqp, qlist)	\
+for ((dqp) = (qlist)->qh_next; (dqp) != (xfs_dquot_t *)(qlist); \
+     (dqp) = (dqp)->dq_flnext)
+
+#define XQM_HASHLIST_INSERT(h, dqp)	\
+	 _LIST_INSERT(h, dqp, HL_PREVP, HL_NEXT)
+
+#define XQM_FREELIST_INSERT(h, dqp)	\
+	 xfs_qm_freelist_append(h, dqp)
+
+#define XQM_MPLIST_INSERT(h, dqp)	\
+	 _LIST_INSERT(h, dqp, MPL_PREVP, MPL_NEXT)
+
+#define XQM_HASHLIST_REMOVE(h, dqp)	\
+	 _LIST_REMOVE(h, dqp, HL_PREVP, HL_NEXT)
+#define XQM_FREELIST_REMOVE(dqp)	\
+	 xfs_qm_freelist_unlink(dqp)
+#define XQM_MPLIST_REMOVE(h, dqp)	\
+	{ _LIST_REMOVE(h, dqp, MPL_PREVP, MPL_NEXT); \
+	  XFS_QI_MPLRECLAIMS((dqp)->q_mount)++; }
+
+#define XFS_DQ_IS_LOGITEM_INITD(dqp)	((dqp)->q_logitem.qli_dquot == (dqp))
+
+#define XFS_QM_DQP_TO_DQACCT(tp, dqp)	(XFS_QM_ISUDQ(dqp) ? \
+					 (tp)->t_dqinfo->dqa_usrdquots : \
+					 (tp)->t_dqinfo->dqa_grpdquots)
+#define XFS_IS_SUSER_DQUOT(dqp)		\
+	(INT_ISZERO((dqp)->q_core.d_id, ARCH_CONVERT))
+
+#define XFS_PURGE_INODE(ip)		\
+	{				\
+	  vmap_t dqvmap;		\
+	  vnode_t *dqvp;		\
+	  dqvp = XFS_ITOV(ip);		\
+	  VMAP(dqvp, dqvmap);		\
+	  VN_RELE(dqvp);		\
+	}
+
+#define DQFLAGTO_TYPESTR(d)	(((d)->dq_flags & XFS_DQ_USER) ? "USR" : \
+				 (((d)->dq_flags & XFS_DQ_GROUP) ? "GRP" : "???"))
+#define DQFLAGTO_DIRTYSTR(d)	(XFS_DQ_IS_DIRTY(d) ? "DIRTY" : "NOTDIRTY")
+
+#endif	/* __XFS_QUOTA_PRIV_H__ */
diff --git a/fs/xfs/quota/xfs_trans_dquot.c b/fs/xfs/quota/xfs_trans_dquot.c
new file mode 100644
index 00000000000000..25079b5727e443
--- /dev/null
+++ b/fs/xfs/quota/xfs_trans_dquot.c
@@ -0,0 +1,941 @@
+/*
+ * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.	 Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_alloc.h"
+#include "xfs_dmapi.h"
+#include "xfs_quota.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_bit.h"
+#include "xfs_rtalloc.h"
+#include "xfs_error.h"
+#include "xfs_itable.h"
+#include "xfs_rw.h"
+#include "xfs_acl.h"
+#include "xfs_cap.h"
+#include "xfs_mac.h"
+#include "xfs_attr.h"
+#include "xfs_buf_item.h"
+#include "xfs_trans_priv.h"
+
+#include "xfs_qm.h"
+
+STATIC void	xfs_trans_alloc_dqinfo(xfs_trans_t *);
+
+/*
+ * Add the locked dquot to the transaction.
+ * The dquot must be locked, and it cannot be associated with any
+ * transaction.
+ */
+void
+xfs_trans_dqjoin(
+	xfs_trans_t	*tp,
+	xfs_dquot_t	*dqp)
+{
+	xfs_dq_logitem_t    *lp;
+
+	ASSERT(! XFS_DQ_IS_ADDEDTO_TRX(tp, dqp));
+	ASSERT(XFS_DQ_IS_LOCKED(dqp));
+	ASSERT(XFS_DQ_IS_LOGITEM_INITD(dqp));
+	lp = &dqp->q_logitem;
+
+	/*
+	 * Get a log_item_desc to point at the new item.
+	 */
+	(void) xfs_trans_add_item(tp, (xfs_log_item_t*)(lp));
+
+	/*
+	 * Initialize i_transp so we can later determine if this dquot is
+	 * associated with this transaction.
+	 */
+	dqp->q_transp = tp;
+}
+
+
+/*
+ * This is called to mark the dquot as needing
+ * to be logged when the transaction is committed.  The dquot must
+ * already be associated with the given transaction.
+ * Note that it marks the entire transaction as dirty. In the ordinary
+ * case, this gets called via xfs_trans_commit, after the transaction
+ * is already dirty. However, there's nothing stop this from getting
+ * called directly, as done by xfs_qm_scall_setqlim. Hence, the TRANS_DIRTY
+ * flag.
+ */
+void
+xfs_trans_log_dquot(
+	xfs_trans_t	*tp,
+	xfs_dquot_t	*dqp)
+{
+	xfs_log_item_desc_t	*lidp;
+
+	ASSERT(XFS_DQ_IS_ADDEDTO_TRX(tp, dqp));
+	ASSERT(XFS_DQ_IS_LOCKED(dqp));
+
+	lidp = xfs_trans_find_item(tp, (xfs_log_item_t*)(&dqp->q_logitem));
+	ASSERT(lidp != NULL);
+
+	tp->t_flags |= XFS_TRANS_DIRTY;
+	lidp->lid_flags |= XFS_LID_DIRTY;
+}
+
+/*
+ * Carry forward whatever is left of the quota blk reservation to
+ * the spanky new transaction
+ */
+STATIC void
+xfs_trans_dup_dqinfo(
+	xfs_trans_t	*otp,
+	xfs_trans_t	*ntp)
+{
+	xfs_dqtrx_t	*oq, *nq;
+	int		i,j;
+	xfs_dqtrx_t	*oqa, *nqa;
+
+	if (!otp->t_dqinfo)
+		return;
+
+	xfs_trans_alloc_dqinfo(ntp);
+	oqa = otp->t_dqinfo->dqa_usrdquots;
+	nqa = ntp->t_dqinfo->dqa_usrdquots;
+
+	/*
+	 * Because the quota blk reservation is carried forward,
+	 * it is also necessary to carry forward the DQ_DIRTY flag.
+	 */
+	if(otp->t_flags & XFS_TRANS_DQ_DIRTY)
+		ntp->t_flags |= XFS_TRANS_DQ_DIRTY;
+
+	for (j = 0; j < 2; j++) {
+		for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) {
+			if (oqa[i].qt_dquot == NULL)
+				break;
+			oq = &oqa[i];
+			nq = &nqa[i];
+
+			nq->qt_dquot = oq->qt_dquot;
+			nq->qt_bcount_delta = nq->qt_icount_delta = 0;
+			nq->qt_rtbcount_delta = 0;
+
+			/*
+			 * Transfer whatever is left of the reservations.
+			 */
+			nq->qt_blk_res = oq->qt_blk_res - oq->qt_blk_res_used;
+			oq->qt_blk_res = oq->qt_blk_res_used;
+
+			nq->qt_rtblk_res = oq->qt_rtblk_res -
+				oq->qt_rtblk_res_used;
+			oq->qt_rtblk_res = oq->qt_rtblk_res_used;
+
+			nq->qt_ino_res = oq->qt_ino_res - oq->qt_ino_res_used;
+			oq->qt_ino_res = oq->qt_ino_res_used;
+
+		}
+		oqa = otp->t_dqinfo->dqa_grpdquots;
+		nqa = ntp->t_dqinfo->dqa_grpdquots;
+	}
+}
+
+/*
+ * Wrap around mod_dquot to account for both user and group quotas.
+ */
+void
+xfs_trans_mod_dquot_byino(
+	xfs_trans_t	*tp,
+	xfs_inode_t	*ip,
+	uint		field,
+	long		delta)
+{
+	xfs_mount_t	*mp;
+
+	ASSERT(tp);
+	mp = tp->t_mountp;
+
+	if (!XFS_IS_QUOTA_ON(mp) ||
+	    ip->i_ino == mp->m_sb.sb_uquotino ||
+	    ip->i_ino == mp->m_sb.sb_gquotino)
+		return;
+
+	if (tp->t_dqinfo == NULL)
+		xfs_trans_alloc_dqinfo(tp);
+
+	if (XFS_IS_UQUOTA_ON(mp) && ip->i_udquot) {
+		(void) xfs_trans_mod_dquot(tp, ip->i_udquot, field, delta);
+	}
+	if (XFS_IS_GQUOTA_ON(mp) && ip->i_gdquot) {
+		(void) xfs_trans_mod_dquot(tp, ip->i_gdquot, field, delta);
+	}
+}
+
+STATIC xfs_dqtrx_t *
+xfs_trans_get_dqtrx(
+	xfs_trans_t	*tp,
+	xfs_dquot_t	*dqp)
+{
+	int		i;
+	xfs_dqtrx_t	*qa;
+
+	for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) {
+		qa = XFS_QM_DQP_TO_DQACCT(tp, dqp);
+
+		if (qa[i].qt_dquot == NULL ||
+		    qa[i].qt_dquot == dqp) {
+			return (&qa[i]);
+		}
+	}
+
+	return (NULL);
+}
+
+/*
+ * Make the changes in the transaction structure.
+ * The moral equivalent to xfs_trans_mod_sb().
+ * We don't touch any fields in the dquot, so we don't care
+ * if it's locked or not (most of the time it won't be).
+ */
+void
+xfs_trans_mod_dquot(
+	xfs_trans_t	*tp,
+	xfs_dquot_t	*dqp,
+	uint		field,
+	long		delta)
+{
+	xfs_dqtrx_t	*qtrx;
+
+	ASSERT(tp);
+	qtrx = NULL;
+
+	if (tp->t_dqinfo == NULL)
+		xfs_trans_alloc_dqinfo(tp);
+	/*
+	 * Find either the first free slot or the slot that belongs
+	 * to this dquot.
+	 */
+	qtrx = xfs_trans_get_dqtrx(tp, dqp);
+	ASSERT(qtrx);
+	if (qtrx->qt_dquot == NULL)
+		qtrx->qt_dquot = dqp;
+
+	switch (field) {
+
+		/*
+		 * regular disk blk reservation
+		 */
+	      case XFS_TRANS_DQ_RES_BLKS:
+		qtrx->qt_blk_res += (ulong)delta;
+		break;
+
+		/*
+		 * inode reservation
+		 */
+	      case XFS_TRANS_DQ_RES_INOS:
+		qtrx->qt_ino_res += (ulong)delta;
+		break;
+
+		/*
+		 * disk blocks used.
+		 */
+	      case XFS_TRANS_DQ_BCOUNT:
+		if (qtrx->qt_blk_res && delta > 0) {
+			qtrx->qt_blk_res_used += (ulong)delta;
+			ASSERT(qtrx->qt_blk_res >= qtrx->qt_blk_res_used);
+		}
+		qtrx->qt_bcount_delta += delta;
+		break;
+
+	      case XFS_TRANS_DQ_DELBCOUNT:
+		qtrx->qt_delbcnt_delta += delta;
+		break;
+
+		/*
+		 * Inode Count
+		 */
+	      case XFS_TRANS_DQ_ICOUNT:
+		if (qtrx->qt_ino_res && delta > 0) {
+			qtrx->qt_ino_res_used += (ulong)delta;
+			ASSERT(qtrx->qt_ino_res >= qtrx->qt_ino_res_used);
+		}
+		qtrx->qt_icount_delta += delta;
+		break;
+
+		/*
+		 * rtblk reservation
+		 */
+	      case XFS_TRANS_DQ_RES_RTBLKS:
+		qtrx->qt_rtblk_res += (ulong)delta;
+		break;
+
+		/*
+		 * rtblk count
+		 */
+	      case XFS_TRANS_DQ_RTBCOUNT:
+		if (qtrx->qt_rtblk_res && delta > 0) {
+			qtrx->qt_rtblk_res_used += (ulong)delta;
+			ASSERT(qtrx->qt_rtblk_res >= qtrx->qt_rtblk_res_used);
+		}
+		qtrx->qt_rtbcount_delta += delta;
+		break;
+
+	      case XFS_TRANS_DQ_DELRTBCOUNT:
+		qtrx->qt_delrtb_delta += delta;
+		break;
+
+	      default:
+		ASSERT(0);
+	}
+	tp->t_flags |= XFS_TRANS_DQ_DIRTY;
+}
+
+
+/*
+ * Given an array of dqtrx structures, lock all the dquots associated
+ * and join them to the transaction, provided they have been modified.
+ * We know that the highest number of dquots (of one type - usr OR grp),
+ * involved in a transaction is 2 and that both usr and grp combined - 3.
+ * So, we don't attempt to make this very generic.
+ */
+STATIC void
+xfs_trans_dqlockedjoin(
+	xfs_trans_t	*tp,
+	xfs_dqtrx_t	*q)
+{
+	ASSERT(q[0].qt_dquot != NULL);
+	if (q[1].qt_dquot == NULL) {
+		xfs_dqlock(q[0].qt_dquot);
+		xfs_trans_dqjoin(tp, q[0].qt_dquot);
+	} else {
+		ASSERT(XFS_QM_TRANS_MAXDQS == 2);
+		xfs_dqlock2(q[0].qt_dquot, q[1].qt_dquot);
+		xfs_trans_dqjoin(tp, q[0].qt_dquot);
+		xfs_trans_dqjoin(tp, q[1].qt_dquot);
+	}
+}
+
+
+/*
+ * Called by xfs_trans_commit() and similar in spirit to
+ * xfs_trans_apply_sb_deltas().
+ * Go thru all the dquots belonging to this transaction and modify the
+ * INCORE dquot to reflect the actual usages.
+ * Unreserve just the reservations done by this transaction.
+ * dquot is still left locked at exit.
+ */
+void
+xfs_trans_apply_dquot_deltas(
+	xfs_trans_t		*tp)
+{
+	int			i, j;
+	xfs_dquot_t		*dqp;
+	xfs_dqtrx_t		*qtrx, *qa;
+	xfs_disk_dquot_t	*d;
+	long			totalbdelta;
+	long			totalrtbdelta;
+
+	if (! (tp->t_flags & XFS_TRANS_DQ_DIRTY))
+		return;
+
+	ASSERT(tp->t_dqinfo);
+	qa = tp->t_dqinfo->dqa_usrdquots;
+	for (j = 0; j < 2; j++) {
+		if (qa[0].qt_dquot == NULL) {
+			qa = tp->t_dqinfo->dqa_grpdquots;
+			continue;
+		}
+
+		/*
+		 * Lock all of the dquots and join them to the transaction.
+		 */
+		xfs_trans_dqlockedjoin(tp, qa);
+
+		for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) {
+			qtrx = &qa[i];
+			/*
+			 * The array of dquots is filled
+			 * sequentially, not sparsely.
+			 */
+			if ((dqp = qtrx->qt_dquot) == NULL)
+				break;
+
+			ASSERT(XFS_DQ_IS_LOCKED(dqp));
+			ASSERT(XFS_DQ_IS_ADDEDTO_TRX(tp, dqp));
+
+			/*
+			 * adjust the actual number of blocks used
+			 */
+			d = &dqp->q_core;
+
+			/*
+			 * The issue here is - sometimes we don't make a blkquota
+			 * reservation intentionally to be fair to users
+			 * (when the amount is small). On the other hand,
+			 * delayed allocs do make reservations, but that's
+			 * outside of a transaction, so we have no
+			 * idea how much was really reserved.
+			 * So, here we've accumulated delayed allocation blks and
+			 * non-delay blks. The assumption is that the
+			 * delayed ones are always reserved (outside of a
+			 * transaction), and the others may or may not have
+			 * quota reservations.
+			 */
+			totalbdelta = qtrx->qt_bcount_delta +
+				qtrx->qt_delbcnt_delta;
+			totalrtbdelta = qtrx->qt_rtbcount_delta +
+				qtrx->qt_delrtb_delta;
+#ifdef QUOTADEBUG
+			if (totalbdelta < 0)
+				ASSERT(INT_GET(d->d_bcount, ARCH_CONVERT) >=
+				       (xfs_qcnt_t) -totalbdelta);
+
+			if (totalrtbdelta < 0)
+				ASSERT(INT_GET(d->d_rtbcount, ARCH_CONVERT) >=
+				       (xfs_qcnt_t) -totalrtbdelta);
+
+			if (qtrx->qt_icount_delta < 0)
+				ASSERT(INT_GET(d->d_icount, ARCH_CONVERT) >=
+				       (xfs_qcnt_t) -qtrx->qt_icount_delta);
+#endif
+			if (totalbdelta)
+				INT_MOD(d->d_bcount, ARCH_CONVERT, (xfs_qcnt_t)totalbdelta);
+
+			if (qtrx->qt_icount_delta)
+				INT_MOD(d->d_icount, ARCH_CONVERT, (xfs_qcnt_t)qtrx->qt_icount_delta);
+
+			if (totalrtbdelta)
+				INT_MOD(d->d_rtbcount, ARCH_CONVERT, (xfs_qcnt_t)totalrtbdelta);
+
+			/*
+			 * Get any default limits in use.
+			 * Start/reset the timer(s) if needed.
+			 */
+			if (!INT_ISZERO(d->d_id, ARCH_CONVERT)) {
+				xfs_qm_adjust_dqlimits(tp->t_mountp, d);
+				xfs_qm_adjust_dqtimers(tp->t_mountp, d);
+			}
+
+			dqp->dq_flags |= XFS_DQ_DIRTY;
+			/*
+			 * add this to the list of items to get logged
+			 */
+			xfs_trans_log_dquot(tp, dqp);
+			/*
+			 * Take off what's left of the original reservation.
+			 * In case of delayed allocations, there's no
+			 * reservation that a transaction structure knows of.
+			 */
+			if (qtrx->qt_blk_res != 0) {
+				if (qtrx->qt_blk_res != qtrx->qt_blk_res_used) {
+					if (qtrx->qt_blk_res >
+					    qtrx->qt_blk_res_used)
+						dqp->q_res_bcount -= (xfs_qcnt_t)
+							(qtrx->qt_blk_res -
+							 qtrx->qt_blk_res_used);
+					else
+						dqp->q_res_bcount -= (xfs_qcnt_t)
+							(qtrx->qt_blk_res_used -
+							 qtrx->qt_blk_res);
+				}
+			} else {
+				/*
+				 * These blks were never reserved, either inside
+				 * a transaction or outside one (in a delayed
+				 * allocation). Also, this isn't always a
+				 * negative number since we sometimes
+				 * deliberately skip quota reservations.
+				 */
+				if (qtrx->qt_bcount_delta) {
+					dqp->q_res_bcount +=
+					      (xfs_qcnt_t)qtrx->qt_bcount_delta;
+				}
+			}
+			/*
+			 * Adjust the RT reservation.
+			 */
+			if (qtrx->qt_rtblk_res != 0) {
+				if (qtrx->qt_blk_res != qtrx->qt_blk_res_used) {
+					if (qtrx->qt_rtblk_res >
+					    qtrx->qt_rtblk_res_used)
+					       dqp->q_res_rtbcount -= (xfs_qcnt_t)
+						       (qtrx->qt_rtblk_res -
+							qtrx->qt_rtblk_res_used);
+					else
+					       dqp->q_res_rtbcount -= (xfs_qcnt_t)
+						       (qtrx->qt_rtblk_res_used -
+							qtrx->qt_rtblk_res);
+				}
+			} else {
+				if (qtrx->qt_rtbcount_delta)
+					dqp->q_res_rtbcount +=
+					    (xfs_qcnt_t)qtrx->qt_rtbcount_delta;
+			}
+
+			/*
+			 * Adjust the inode reservation.
+			 */
+			if (qtrx->qt_ino_res != 0) {
+				ASSERT(qtrx->qt_ino_res >=
+				       qtrx->qt_ino_res_used);
+				if (qtrx->qt_ino_res > qtrx->qt_ino_res_used)
+					dqp->q_res_icount -= (xfs_qcnt_t)
+						(qtrx->qt_ino_res -
+						 qtrx->qt_ino_res_used);
+			} else {
+				if (qtrx->qt_icount_delta)
+					dqp->q_res_icount +=
+					    (xfs_qcnt_t)qtrx->qt_icount_delta;
+			}
+
+
+#ifdef QUOTADEBUG
+			if (qtrx->qt_rtblk_res != 0)
+				cmn_err(CE_DEBUG, "RT res %d for 0x%p\n",
+					(int) qtrx->qt_rtblk_res, dqp);
+#endif
+			ASSERT(dqp->q_res_bcount >=
+				INT_GET(dqp->q_core.d_bcount, ARCH_CONVERT));
+			ASSERT(dqp->q_res_icount >=
+				INT_GET(dqp->q_core.d_icount, ARCH_CONVERT));
+			ASSERT(dqp->q_res_rtbcount >=
+				INT_GET(dqp->q_core.d_rtbcount, ARCH_CONVERT));
+		}
+		/*
+		 * Do the group quotas next
+		 */
+		qa = tp->t_dqinfo->dqa_grpdquots;
+	}
+}
+
+/*
+ * Release the reservations, and adjust the dquots accordingly.
+ * This is called only when the transaction is being aborted. If by
+ * any chance we have done dquot modifications incore (ie. deltas) already,
+ * we simply throw those away, since that's the expected behavior
+ * when a transaction is curtailed without a commit.
+ */
+STATIC void
+xfs_trans_unreserve_and_mod_dquots(
+	xfs_trans_t		*tp)
+{
+	int			i, j;
+	xfs_dquot_t		*dqp;
+	xfs_dqtrx_t		*qtrx, *qa;
+	boolean_t		locked;
+
+	if (!tp->t_dqinfo || !(tp->t_flags & XFS_TRANS_DQ_DIRTY))
+		return;
+
+	qa = tp->t_dqinfo->dqa_usrdquots;
+
+	for (j = 0; j < 2; j++) {
+		for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) {
+			qtrx = &qa[i];
+			/*
+			 * We assume that the array of dquots is filled
+			 * sequentially, not sparsely.
+			 */
+			if ((dqp = qtrx->qt_dquot) == NULL)
+				break;
+			/*
+			 * Unreserve the original reservation. We don't care
+			 * about the number of blocks used field, or deltas.
+			 * Also we don't bother to zero the fields.
+			 */
+			locked = B_FALSE;
+			if (qtrx->qt_blk_res) {
+				xfs_dqlock(dqp);
+				locked = B_TRUE;
+				dqp->q_res_bcount -=
+					(xfs_qcnt_t)qtrx->qt_blk_res;
+			}
+			if (qtrx->qt_ino_res) {
+				if (!locked) {
+					xfs_dqlock(dqp);
+					locked = B_TRUE;
+				}
+				dqp->q_res_icount -=
+					(xfs_qcnt_t)qtrx->qt_ino_res;
+			}
+
+			if (qtrx->qt_rtblk_res) {
+				if (!locked) {
+					xfs_dqlock(dqp);
+					locked = B_TRUE;
+				}
+				dqp->q_res_rtbcount -=
+					(xfs_qcnt_t)qtrx->qt_rtblk_res;
+			}
+			if (locked)
+				xfs_dqunlock(dqp);
+
+		}
+		qa = tp->t_dqinfo->dqa_grpdquots;
+	}
+}
+
+/*
+ * This reserves disk blocks and inodes against a dquot.
+ * Flags indicate if the dquot is to be locked here and also
+ * if the blk reservation is for RT or regular blocks.
+ * Sending in XFS_QMOPT_FORCE_RES flag skips the quota check.
+ * Returns EDQUOT if quota is exceeded.
+ */
+STATIC int
+xfs_trans_dqresv(
+	xfs_trans_t	*tp,
+	xfs_mount_t	*mp,
+	xfs_dquot_t	*dqp,
+	long		nblks,
+	long		ninos,
+	uint		flags)
+{
+	int		error;
+	xfs_qcnt_t	hardlimit;
+	xfs_qcnt_t	softlimit;
+	time_t		btimer;
+	xfs_qcnt_t	*resbcountp;
+	xfs_quotainfo_t	*q = mp->m_quotainfo;
+
+	if (! (flags & XFS_QMOPT_DQLOCK)) {
+		xfs_dqlock(dqp);
+	}
+	ASSERT(XFS_DQ_IS_LOCKED(dqp));
+	if (flags & XFS_TRANS_DQ_RES_BLKS) {
+		hardlimit = INT_GET(dqp->q_core.d_blk_hardlimit, ARCH_CONVERT);
+		if (!hardlimit)
+			hardlimit = q->qi_bhardlimit;
+		softlimit = INT_GET(dqp->q_core.d_blk_softlimit, ARCH_CONVERT);
+		if (!softlimit)
+			softlimit = q->qi_bsoftlimit;
+		btimer = INT_GET(dqp->q_core.d_btimer, ARCH_CONVERT);
+		resbcountp = &dqp->q_res_bcount;
+	} else {
+		ASSERT(flags & XFS_TRANS_DQ_RES_RTBLKS);
+		hardlimit = INT_GET(dqp->q_core.d_rtb_hardlimit, ARCH_CONVERT);
+		if (!hardlimit)
+			hardlimit = q->qi_rtbhardlimit;
+		softlimit = INT_GET(dqp->q_core.d_rtb_softlimit, ARCH_CONVERT);
+		if (!softlimit)
+			softlimit = q->qi_rtbsoftlimit;
+		btimer = INT_GET(dqp->q_core.d_rtbtimer, ARCH_CONVERT);
+		resbcountp = &dqp->q_res_rtbcount;
+	}
+	error = 0;
+
+	if ((flags & XFS_QMOPT_FORCE_RES) == 0 &&
+	    !INT_ISZERO(dqp->q_core.d_id, ARCH_CONVERT) &&
+	    XFS_IS_QUOTA_ENFORCED(dqp->q_mount)) {
+#ifdef QUOTADEBUG
+		cmn_err(CE_DEBUG, "BLK Res: nblks=%ld + resbcount=%Ld"
+			  " > hardlimit=%Ld?", nblks, *resbcountp, hardlimit);
+#endif
+		if (nblks > 0) {
+			/*
+			 * dquot is locked already. See if we'd go over the
+			 * hardlimit or exceed the timelimit if we allocate
+			 * nblks.
+			 */
+			if (hardlimit > 0ULL &&
+			     (hardlimit <= nblks + *resbcountp)) {
+				error = EDQUOT;
+				goto error_return;
+			}
+
+			if (softlimit > 0ULL &&
+			     (softlimit <= nblks + *resbcountp)) {
+				/*
+				 * If timer or warnings has expired,
+				 * return EDQUOT
+				 */
+				if ((btimer != 0 && get_seconds() > btimer) ||
+				    (!INT_ISZERO(dqp->q_core.d_bwarns, ARCH_CONVERT) &&
+				     INT_GET(dqp->q_core.d_bwarns, ARCH_CONVERT) >=
+				     XFS_QI_BWARNLIMIT(dqp->q_mount))) {
+					error = EDQUOT;
+					goto error_return;
+				}
+			}
+		}
+		if (ninos > 0) {
+			hardlimit = INT_GET(dqp->q_core.d_ino_hardlimit, ARCH_CONVERT);
+			if (!hardlimit)
+				hardlimit = q->qi_ihardlimit;
+			softlimit = INT_GET(dqp->q_core.d_ino_softlimit, ARCH_CONVERT);
+			if (!softlimit)
+				softlimit = q->qi_isoftlimit;
+			if (hardlimit > 0ULL &&
+			    INT_GET(dqp->q_core.d_icount, ARCH_CONVERT) >= hardlimit) {
+				error = EDQUOT;
+				goto error_return;
+			} else if (softlimit > 0ULL &&
+				   INT_GET(dqp->q_core.d_icount, ARCH_CONVERT) >= softlimit) {
+				/*
+				 * If timer or warnings has expired,
+				 * return EDQUOT
+				 */
+				if ((!INT_ISZERO(dqp->q_core.d_itimer, ARCH_CONVERT) &&
+				     get_seconds() > INT_GET(dqp->q_core.d_itimer, ARCH_CONVERT)) ||
+				    (!INT_ISZERO(dqp->q_core.d_iwarns, ARCH_CONVERT) &&
+				     INT_GET(dqp->q_core.d_iwarns, ARCH_CONVERT) >=
+				     XFS_QI_IWARNLIMIT(dqp->q_mount))) {
+					error = EDQUOT;
+					goto error_return;
+				}
+			}
+		}
+	}
+
+	/*
+	 * Change the reservation, but not the actual usage.
+	 * Note that q_res_bcount = q_core.d_bcount + resv
+	 */
+	(*resbcountp) += (xfs_qcnt_t)nblks;
+	if (ninos != 0)
+		dqp->q_res_icount += (xfs_qcnt_t)ninos;
+
+	/*
+	 * note the reservation amt in the trans struct too,
+	 * so that the transaction knows how much was reserved by
+	 * it against this particular dquot.
+	 * We don't do this when we are reserving for a delayed allocation,
+	 * because we don't have the luxury of a transaction envelope then.
+	 */
+	if (tp) {
+		ASSERT(tp->t_dqinfo);
+		ASSERT(flags & XFS_QMOPT_RESBLK_MASK);
+		if (nblks != 0)
+			xfs_trans_mod_dquot(tp, dqp,
+					    flags & XFS_QMOPT_RESBLK_MASK,
+					    nblks);
+		if (ninos != 0)
+			xfs_trans_mod_dquot(tp, dqp,
+					    XFS_TRANS_DQ_RES_INOS,
+					    ninos);
+	}
+	ASSERT(dqp->q_res_bcount >= INT_GET(dqp->q_core.d_bcount, ARCH_CONVERT));
+	ASSERT(dqp->q_res_rtbcount >= INT_GET(dqp->q_core.d_rtbcount, ARCH_CONVERT));
+	ASSERT(dqp->q_res_icount >= INT_GET(dqp->q_core.d_icount, ARCH_CONVERT));
+
+error_return:
+	if (! (flags & XFS_QMOPT_DQLOCK)) {
+		xfs_dqunlock(dqp);
+	}
+	return (error);
+}
+
+
+/*
+ * Given a dquot(s), make disk block and/or inode reservations against them.
+ * The fact that this does the reservation against both the usr and
+ * grp quotas is important, because this follows a both-or-nothing
+ * approach.
+ *
+ * flags = XFS_QMOPT_DQLOCK indicate if dquot(s) need to be locked.
+ *	   XFS_QMOPT_FORCE_RES evades limit enforcement. Used by chown.
+ *	   XFS_TRANS_DQ_RES_BLKS reserves regular disk blocks
+ *	   XFS_TRANS_DQ_RES_RTBLKS reserves realtime disk blocks
+ * dquots are unlocked on return, if they were not locked by caller.
+ */
+int
+xfs_trans_reserve_quota_bydquots(
+	xfs_trans_t	*tp,
+	xfs_mount_t	*mp,
+	xfs_dquot_t	*udqp,
+	xfs_dquot_t	*gdqp,
+	long		nblks,
+	long		ninos,
+	uint		flags)
+{
+	int		resvd;
+
+	if (! XFS_IS_QUOTA_ON(mp))
+		return (0);
+
+	if (tp && tp->t_dqinfo == NULL)
+		xfs_trans_alloc_dqinfo(tp);
+
+	ASSERT(flags & XFS_QMOPT_RESBLK_MASK);
+	resvd = 0;
+
+	if (udqp) {
+		if (xfs_trans_dqresv(tp, mp, udqp, nblks, ninos, flags))
+			return (EDQUOT);
+		resvd = 1;
+	}
+
+	if (gdqp) {
+		if (xfs_trans_dqresv(tp, mp, gdqp, nblks, ninos, flags)) {
+			/*
+			 * can't do it, so backout previous reservation
+			 */
+			if (resvd) {
+				flags |= XFS_QMOPT_FORCE_RES;
+				xfs_trans_dqresv(tp, mp, udqp,
+						 -nblks, -ninos, flags);
+			}
+			return (EDQUOT);
+		}
+	}
+
+	/*
+	 * Didnt change anything critical, so, no need to log
+	 */
+	return (0);
+}
+
+
+/*
+ * Lock the dquot and change the reservation if we can.
+ * This doesn't change the actual usage, just the reservation.
+ * The inode sent in is locked.
+ *
+ * Returns 0 on success, EDQUOT or other errors otherwise
+ */
+STATIC int
+xfs_trans_reserve_quota_nblks(
+	xfs_trans_t	*tp,
+	xfs_mount_t	*mp,
+	xfs_inode_t	*ip,
+	long		nblks,
+	long		ninos,
+	uint		type)
+{
+	int		error;
+
+	if (!XFS_IS_QUOTA_ON(mp))
+		return (0);
+
+	ASSERT(ip->i_ino != mp->m_sb.sb_uquotino);
+	ASSERT(ip->i_ino != mp->m_sb.sb_gquotino);
+
+	ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
+	ASSERT(XFS_IS_QUOTA_RUNNING(ip->i_mount));
+	ASSERT((type & ~XFS_QMOPT_FORCE_RES) == XFS_TRANS_DQ_RES_RTBLKS ||
+	       (type & ~XFS_QMOPT_FORCE_RES) == XFS_TRANS_DQ_RES_BLKS);
+
+	/*
+	 * Reserve nblks against these dquots, with trans as the mediator.
+	 */
+	error = xfs_trans_reserve_quota_bydquots(tp, mp,
+						 ip->i_udquot, ip->i_gdquot,
+						 nblks, ninos,
+						 type);
+	return (error);
+}
+
+/*
+ * This routine is called to allocate a quotaoff log item.
+ */
+xfs_qoff_logitem_t *
+xfs_trans_get_qoff_item(
+	xfs_trans_t		*tp,
+	xfs_qoff_logitem_t	*startqoff,
+	uint			flags)
+{
+	xfs_qoff_logitem_t	*q;
+
+	ASSERT(tp != NULL);
+
+	q = xfs_qm_qoff_logitem_init(tp->t_mountp, startqoff, flags);
+	ASSERT(q != NULL);
+
+	/*
+	 * Get a log_item_desc to point at the new item.
+	 */
+	(void) xfs_trans_add_item(tp, (xfs_log_item_t*)q);
+
+	return (q);
+}
+
+
+/*
+ * This is called to mark the quotaoff logitem as needing
+ * to be logged when the transaction is committed.  The logitem must
+ * already be associated with the given transaction.
+ */
+void
+xfs_trans_log_quotaoff_item(
+	xfs_trans_t		*tp,
+	xfs_qoff_logitem_t	*qlp)
+{
+	xfs_log_item_desc_t	*lidp;
+
+	lidp = xfs_trans_find_item(tp, (xfs_log_item_t *)qlp);
+	ASSERT(lidp != NULL);
+
+	tp->t_flags |= XFS_TRANS_DIRTY;
+	lidp->lid_flags |= XFS_LID_DIRTY;
+}
+
+STATIC void
+xfs_trans_alloc_dqinfo(
+	xfs_trans_t	*tp)
+{
+	(tp)->t_dqinfo = kmem_zone_zalloc(xfs_Gqm->qm_dqtrxzone, KM_SLEEP);
+}
+
+STATIC void
+xfs_trans_free_dqinfo(
+	xfs_trans_t	*tp)
+{
+	if (!tp->t_dqinfo)
+		return;
+	kmem_zone_free(xfs_Gqm->qm_dqtrxzone, (tp)->t_dqinfo);
+	(tp)->t_dqinfo = NULL;
+}
+
+xfs_dqtrxops_t	xfs_trans_dquot_ops = {
+	.qo_dup_dqinfo			= xfs_trans_dup_dqinfo,
+	.qo_free_dqinfo			= xfs_trans_free_dqinfo,
+	.qo_mod_dquot_byino		= xfs_trans_mod_dquot_byino,
+	.qo_apply_dquot_deltas		= xfs_trans_apply_dquot_deltas,
+	.qo_reserve_quota_nblks		= xfs_trans_reserve_quota_nblks,
+	.qo_reserve_quota_bydquots	= xfs_trans_reserve_quota_bydquots,
+	.qo_unreserve_and_mod_dquots	= xfs_trans_unreserve_and_mod_dquots,
+};
diff --git a/fs/xfs/support/Makefile b/fs/xfs/support/Makefile
new file mode 100644
index 00000000000000..fb039f59312d22
--- /dev/null
+++ b/fs/xfs/support/Makefile
@@ -0,0 +1,51 @@
+#
+# Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of version 2 of the GNU General Public License as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it would be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#
+# Further, this software is distributed without any warranty that it is
+# free of the rightful claim of any third person regarding infringement
+# or the like.  Any license provided herein, whether implied or
+# otherwise, applies only to this software file.  Patent licenses, if
+# any, provided herein do not apply to combinations of this program with
+# other software, or any other product whatsoever.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write the Free Software Foundation, Inc., 59
+# Temple Place - Suite 330, Boston MA 02111-1307, USA.
+#
+# Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+# Mountain View, CA  94043, or:
+#
+# http://www.sgi.com
+#
+# For further information regarding this notice, see:
+#
+# http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+#
+
+EXTRA_CFLAGS += -I.. -I $(TOPDIR)/fs/xfs/linux-2.4
+
+ifeq ($(CONFIG_XFS_DEBUG),y)
+	EXTRA_CFLAGS += -DDEBUG
+endif
+
+O_TARGET			:= support_xfs.o
+ifneq ($(MAKECMDGOALS),modules_install)
+  obj-m				:= $(O_TARGET)
+endif
+
+obj-y				:= debug.o \
+				   move.o \
+				   qsort.o \
+				   uuid.o
+
+obj-$(CONFIG_XFS_TRACE)		+= ktrace.o
+
+include $(TOPDIR)/Rules.make
diff --git a/fs/xfs/support/debug.c b/fs/xfs/support/debug.c
new file mode 100644
index 00000000000000..2e5a3e97b41eec
--- /dev/null
+++ b/fs/xfs/support/debug.c
@@ -0,0 +1,127 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "debug.h"
+
+#include <asm/page.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+
+int			doass = 1;
+static char		message[256];	/* keep it off the stack */
+static spinlock_t	xfs_err_lock = SPIN_LOCK_UNLOCKED;
+
+/* Translate from CE_FOO to KERN_FOO, err_level(CE_FOO) == KERN_FOO */
+#define XFS_MAX_ERR_LEVEL	7
+#define XFS_ERR_MASK		((1 << 3) - 1)
+static char		*err_level[XFS_MAX_ERR_LEVEL+1] =
+					{KERN_EMERG, KERN_ALERT, KERN_CRIT,
+					 KERN_ERR, KERN_WARNING, KERN_NOTICE,
+					 KERN_INFO, KERN_DEBUG};
+
+void
+assfail(char *a, char *f, int l)
+{
+    printk("XFS assertion failed: %s, file: %s, line: %d\n", a, f, l);
+    BUG();
+}
+
+#if ((defined(DEBUG) || defined(INDUCE_IO_ERRROR)) && !defined(NO_WANT_RANDOM))
+
+unsigned long
+random(void)
+{
+	static unsigned long	RandomValue = 1;
+	/* cycles pseudo-randomly through all values between 1 and 2^31 - 2 */
+	register long	rv = RandomValue;
+	register long	lo;
+	register long	hi;
+
+	hi = rv / 127773;
+	lo = rv % 127773;
+	rv = 16807 * lo - 2836 * hi;
+	if( rv <= 0 ) rv += 2147483647;
+	return( RandomValue = rv );
+}
+
+int
+get_thread_id(void)
+{
+	return current->pid;
+}
+
+#endif /* DEBUG || INDUCE_IO_ERRROR || !NO_WANT_RANDOM */
+
+void
+cmn_err(register int level, char *fmt, ...)
+{
+	char	*fp = fmt;
+	int	len;
+	ulong	flags;
+	va_list	ap;
+
+	level &= XFS_ERR_MASK;
+	if (level > XFS_MAX_ERR_LEVEL)
+		level = XFS_MAX_ERR_LEVEL;
+	spin_lock_irqsave(&xfs_err_lock,flags);
+	va_start(ap, fmt);
+	if (*fmt == '!') fp++;
+	len = vsprintf(message, fp, ap);
+	if (message[len-1] != '\n')
+		strcat(message, "\n");
+	printk("%s%s", err_level[level], message);
+	va_end(ap);
+	spin_unlock_irqrestore(&xfs_err_lock,flags);
+
+	if (level == CE_PANIC)
+		BUG();
+}
+
+
+void
+icmn_err(register int level, char *fmt, va_list ap)
+{
+	ulong	flags;
+	int	len;
+
+	level &= XFS_ERR_MASK;
+	if(level > XFS_MAX_ERR_LEVEL)
+		level = XFS_MAX_ERR_LEVEL;
+	spin_lock_irqsave(&xfs_err_lock,flags);
+	len = vsprintf(message, fmt, ap);
+	if (message[len-1] != '\n')
+		strcat(message, "\n");
+	spin_unlock_irqrestore(&xfs_err_lock,flags);
+	printk("%s%s", err_level[level], message);
+	if (level == CE_PANIC)
+		BUG();
+}
diff --git a/fs/xfs/support/debug.h b/fs/xfs/support/debug.h
new file mode 100644
index 00000000000000..40b0f4c54d9e5f
--- /dev/null
+++ b/fs/xfs/support/debug.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef	__XFS_SUPPORT_DEBUG_H__
+#define	__XFS_SUPPORT_DEBUG_H__
+
+#include <stdarg.h>
+
+#define CE_DEBUG        7               /* debug        */
+#define CE_CONT         6               /* continuation */
+#define CE_NOTE         5               /* notice       */
+#define CE_WARN         4               /* warning      */
+#define CE_ALERT        1               /* alert        */
+#define CE_PANIC        0               /* panic        */
+
+extern void icmn_err(int, char *, va_list);
+/* PRINTFLIKE2 */
+extern void cmn_err(int, char *, ...);
+
+#ifndef STATIC
+# define STATIC static
+#endif
+
+#ifdef DEBUG
+# ifdef lint
+#  define ASSERT(EX)	((void)0) /* avoid "constant in conditional" babble */
+# else
+#  define ASSERT(EX) ((!doass||(EX))?((void)0):assfail(#EX, __FILE__, __LINE__))
+# endif	/* lint */
+#else
+# define ASSERT(x)	((void)0)
+#endif
+
+extern int doass;		/* dynamically turn off asserts */
+extern void assfail(char *, char *, int);
+#ifdef DEBUG
+extern unsigned long random(void);
+extern int get_thread_id(void);
+#endif
+
+#define ASSERT_ALWAYS(EX)  ((EX)?((void)0):assfail(#EX, __FILE__, __LINE__))
+#define	debug_stop_all_cpus(param)	/* param is "cpumask_t *" */
+
+#endif  /* __XFS_SUPPORT_DEBUG_H__ */
diff --git a/fs/xfs/support/ktrace.c b/fs/xfs/support/ktrace.c
new file mode 100644
index 00000000000000..3dae14c8c55a14
--- /dev/null
+++ b/fs/xfs/support/ktrace.c
@@ -0,0 +1,346 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include <xfs.h>
+
+static kmem_zone_t *ktrace_hdr_zone;
+static kmem_zone_t *ktrace_ent_zone;
+static int          ktrace_zentries;
+
+void
+ktrace_init(int zentries)
+{
+	ktrace_zentries = zentries;
+
+	ktrace_hdr_zone = kmem_zone_init(sizeof(ktrace_t),
+					"ktrace_hdr");
+	ASSERT(ktrace_hdr_zone);
+
+	ktrace_ent_zone = kmem_zone_init(ktrace_zentries
+					* sizeof(ktrace_entry_t),
+					"ktrace_ent");
+	ASSERT(ktrace_ent_zone);
+}
+
+void
+ktrace_uninit(void)
+{
+	kmem_cache_destroy(ktrace_hdr_zone);
+	kmem_cache_destroy(ktrace_ent_zone);
+}
+
+/*
+ * ktrace_alloc()
+ *
+ * Allocate a ktrace header and enough buffering for the given
+ * number of entries.
+ */
+ktrace_t *
+ktrace_alloc(int nentries, int sleep)
+{
+	ktrace_t        *ktp;
+	ktrace_entry_t  *ktep;
+
+	ktp = (ktrace_t*)kmem_zone_alloc(ktrace_hdr_zone, sleep);
+
+	if (ktp == (ktrace_t*)NULL) {
+		/*
+		 * KM_SLEEP callers don't expect failure.
+		 */
+		if (sleep & KM_SLEEP)
+			panic("ktrace_alloc: NULL memory on KM_SLEEP request!");
+
+		return NULL;
+	}
+
+	/*
+	 * Special treatment for buffers with the ktrace_zentries entries
+	 */
+	if (nentries == ktrace_zentries) {
+		ktep = (ktrace_entry_t*)kmem_zone_zalloc(ktrace_ent_zone,
+							    sleep);
+	} else {
+		ktep = (ktrace_entry_t*)kmem_zalloc((nentries * sizeof(*ktep)),
+							    sleep);
+	}
+
+	if (ktep == NULL) {
+		/*
+		 * KM_SLEEP callers don't expect failure.
+		 */
+		if (sleep & KM_SLEEP)
+			panic("ktrace_alloc: NULL memory on KM_SLEEP request!");
+
+		kmem_free(ktp, sizeof(*ktp));
+
+		return NULL;
+	}
+
+	spinlock_init(&(ktp->kt_lock), "kt_lock");
+
+	ktp->kt_entries  = ktep;
+	ktp->kt_nentries = nentries;
+	ktp->kt_index    = 0;
+	ktp->kt_rollover = 0;
+	return ktp;
+}
+
+
+/*
+ * ktrace_free()
+ *
+ * Free up the ktrace header and buffer.  It is up to the caller
+ * to ensure that no-one is referencing it.
+ */
+void
+ktrace_free(ktrace_t *ktp)
+{
+	int     entries_size;
+
+	if (ktp == (ktrace_t *)NULL)
+		return;
+
+	spinlock_destroy(&ktp->kt_lock);
+
+	/*
+	 * Special treatment for the Vnode trace buffer.
+	 */
+	if (ktp->kt_nentries == ktrace_zentries) {
+		kmem_zone_free(ktrace_ent_zone, ktp->kt_entries);
+	} else {
+		entries_size = (int)(ktp->kt_nentries * sizeof(ktrace_entry_t));
+
+		kmem_free(ktp->kt_entries, entries_size);
+	}
+
+	kmem_zone_free(ktrace_hdr_zone, ktp);
+}
+
+
+/*
+ * Enter the given values into the "next" entry in the trace buffer.
+ * kt_index is always the index of the next entry to be filled.
+ */
+void
+ktrace_enter(
+	ktrace_t        *ktp,
+	void            *val0,
+	void            *val1,
+	void            *val2,
+	void            *val3,
+	void            *val4,
+	void            *val5,
+	void            *val6,
+	void            *val7,
+	void            *val8,
+	void            *val9,
+	void            *val10,
+	void            *val11,
+	void            *val12,
+	void            *val13,
+	void            *val14,
+	void            *val15)
+{
+	static lock_t   wrap_lock = SPIN_LOCK_UNLOCKED;
+	unsigned long	flags;
+	int             index;
+	ktrace_entry_t  *ktep;
+
+	ASSERT(ktp != NULL);
+
+	/*
+	 * Grab an entry by pushing the index up to the next one.
+	 */
+	spin_lock_irqsave(&wrap_lock, flags);
+	index = ktp->kt_index;
+	if (++ktp->kt_index == ktp->kt_nentries)
+		ktp->kt_index = 0;
+	spin_unlock_irqrestore(&wrap_lock, flags);
+
+	if (!ktp->kt_rollover && index == ktp->kt_nentries - 1)
+		ktp->kt_rollover = 1;
+
+	ASSERT((index >= 0) && (index < ktp->kt_nentries));
+
+	ktep = &(ktp->kt_entries[index]);
+
+	ktep->val[0]  = val0;
+	ktep->val[1]  = val1;
+	ktep->val[2]  = val2;
+	ktep->val[3]  = val3;
+	ktep->val[4]  = val4;
+	ktep->val[5]  = val5;
+	ktep->val[6]  = val6;
+	ktep->val[7]  = val7;
+	ktep->val[8]  = val8;
+	ktep->val[9]  = val9;
+	ktep->val[10] = val10;
+	ktep->val[11] = val11;
+	ktep->val[12] = val12;
+	ktep->val[13] = val13;
+	ktep->val[14] = val14;
+	ktep->val[15] = val15;
+}
+
+/*
+ * Return the number of entries in the trace buffer.
+ */
+int
+ktrace_nentries(
+	ktrace_t        *ktp)
+{
+	if (ktp == NULL) {
+		return 0;
+	}
+
+	return (ktp->kt_rollover ? ktp->kt_nentries : ktp->kt_index);
+}
+
+/*
+ * ktrace_first()
+ *
+ * This is used to find the start of the trace buffer.
+ * In conjunction with ktrace_next() it can be used to
+ * iterate through the entire trace buffer.  This code does
+ * not do any locking because it is assumed that it is called
+ * from the debugger.
+ *
+ * The caller must pass in a pointer to a ktrace_snap
+ * structure in which we will keep some state used to
+ * iterate through the buffer.  This state must not touched
+ * by any code outside of this module.
+ */
+ktrace_entry_t *
+ktrace_first(ktrace_t   *ktp, ktrace_snap_t     *ktsp)
+{
+	ktrace_entry_t  *ktep;
+	int             index;
+	int             nentries;
+
+	if (ktp->kt_rollover)
+		index = ktp->kt_index;
+	else
+		index = 0;
+
+	ktsp->ks_start = index;
+	ktep = &(ktp->kt_entries[index]);
+
+	nentries = ktrace_nentries(ktp);
+	index++;
+	if (index < nentries) {
+		ktsp->ks_index = index;
+	} else {
+		ktsp->ks_index = 0;
+		if (index > nentries)
+			ktep = NULL;
+	}
+	return ktep;
+}
+
+/*
+ * ktrace_next()
+ *
+ * This is used to iterate through the entries of the given
+ * trace buffer.  The caller must pass in the ktrace_snap_t
+ * structure initialized by ktrace_first().  The return value
+ * will be either a pointer to the next ktrace_entry or NULL
+ * if all of the entries have been traversed.
+ */
+ktrace_entry_t *
+ktrace_next(
+	ktrace_t        *ktp,
+	ktrace_snap_t   *ktsp)
+{
+	int             index;
+	ktrace_entry_t  *ktep;
+
+	index = ktsp->ks_index;
+	if (index == ktsp->ks_start) {
+		ktep = NULL;
+	} else {
+		ktep = &ktp->kt_entries[index];
+	}
+
+	index++;
+	if (index == ktrace_nentries(ktp)) {
+		ktsp->ks_index = 0;
+	} else {
+		ktsp->ks_index = index;
+	}
+
+	return ktep;
+}
+
+/*
+ * ktrace_skip()
+ *
+ * Skip the next "count" entries and return the entry after that.
+ * Return NULL if this causes us to iterate past the beginning again.
+ */
+ktrace_entry_t *
+ktrace_skip(
+	ktrace_t        *ktp,
+	int             count,
+	ktrace_snap_t   *ktsp)
+{
+	int             index;
+	int             new_index;
+	ktrace_entry_t  *ktep;
+	int             nentries = ktrace_nentries(ktp);
+
+	index = ktsp->ks_index;
+	new_index = index + count;
+	while (new_index >= nentries) {
+		new_index -= nentries;
+	}
+	if (index == ktsp->ks_start) {
+		/*
+		 * We've iterated around to the start, so we're done.
+		 */
+		ktep = NULL;
+	} else if ((new_index < index) && (index < ktsp->ks_index)) {
+		/*
+		 * We've skipped past the start again, so we're done.
+		 */
+		ktep = NULL;
+		ktsp->ks_index = ktsp->ks_start;
+	} else {
+		ktep = &(ktp->kt_entries[new_index]);
+		new_index++;
+		if (new_index == nentries) {
+			ktsp->ks_index = 0;
+		} else {
+			ktsp->ks_index = new_index;
+		}
+	}
+	return ktep;
+}
diff --git a/fs/xfs/support/ktrace.h b/fs/xfs/support/ktrace.h
new file mode 100644
index 00000000000000..92d1a1a5d04b64
--- /dev/null
+++ b/fs/xfs/support/ktrace.h
@@ -0,0 +1,101 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_SUPPORT_KTRACE_H__
+#define __XFS_SUPPORT_KTRACE_H__
+
+#include <spin.h>
+
+/*
+ * Trace buffer entry structure.
+ */
+typedef struct ktrace_entry {
+	void	*val[16];
+} ktrace_entry_t;
+
+/*
+ * Trace buffer header structure.
+ */
+typedef struct ktrace {
+	lock_t		kt_lock;	/* mutex to guard counters */
+	int		kt_nentries;	/* number of entries in trace buf */
+	int		kt_index;	/* current index in entries */
+	int		kt_rollover;
+	ktrace_entry_t	*kt_entries;	/* buffer of entries */
+} ktrace_t;
+
+/*
+ * Trace buffer snapshot structure.
+ */
+typedef struct ktrace_snap {
+	int		ks_start;	/* kt_index at time of snap */
+	int		ks_index;	/* current index */
+} ktrace_snap_t;
+
+
+#ifdef CONFIG_XFS_TRACE
+
+extern void ktrace_init(int zentries);
+extern void ktrace_uninit(void);
+
+extern ktrace_t *ktrace_alloc(int, int);
+extern void ktrace_free(ktrace_t *);
+
+extern void ktrace_enter(
+	ktrace_t	*,
+	void		*,
+	void		*,
+	void		*,
+	void		*,
+	void		*,
+	void		*,
+	void		*,
+	void		*,
+	void		*,
+	void		*,
+	void		*,
+	void		*,
+	void		*,
+	void		*,
+	void		*,
+	void		*);
+
+extern ktrace_entry_t   *ktrace_first(ktrace_t *, ktrace_snap_t *);
+extern int              ktrace_nentries(ktrace_t *);
+extern ktrace_entry_t   *ktrace_next(ktrace_t *, ktrace_snap_t *);
+extern ktrace_entry_t   *ktrace_skip(ktrace_t *, int, ktrace_snap_t *);
+
+#else
+#define ktrace_init(x)	do { } while (0)
+#define ktrace_uninit()	do { } while (0)
+#endif	/* CONFIG_XFS_TRACE */
+
+#endif	/* __XFS_SUPPORT_KTRACE_H__ */
diff --git a/fs/xfs/support/move.c b/fs/xfs/support/move.c
new file mode 100644
index 00000000000000..15b5194f16b29d
--- /dev/null
+++ b/fs/xfs/support/move.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include <xfs.h>
+
+/* Read from kernel buffer at src to user/kernel buffer defined
+ * by the uio structure. Advance the pointer in the uio struct
+ * as we go.
+ */
+int
+uio_read(caddr_t src, size_t len, struct uio *uio)
+{
+	size_t	count;
+
+	if (!len || !uio->uio_resid)
+		return 0;
+
+	count = uio->uio_iov->iov_len;
+	if (!count)
+		return 0;
+	if (count > len)
+		count = len;
+
+	if (uio->uio_segflg == UIO_USERSPACE) {
+		if (copy_to_user(uio->uio_iov->iov_base, src, count))
+			return EFAULT;
+	} else {
+		ASSERT(uio->uio_segflg == UIO_SYSSPACE);
+		memcpy(uio->uio_iov->iov_base, src, count);
+	}
+
+	uio->uio_iov->iov_base = (void*)((char*)uio->uio_iov->iov_base + count);
+	uio->uio_iov->iov_len -= count;
+	uio->uio_offset += count;
+	uio->uio_resid -= count;
+	return 0;
+}
diff --git a/fs/xfs/support/move.h b/fs/xfs/support/move.h
new file mode 100644
index 00000000000000..3d406dc1c89e9e
--- /dev/null
+++ b/fs/xfs/support/move.h
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ * 
+ * Portions Copyright (c) 1982, 1986, 1993, 1994
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+#ifndef __XFS_SUPPORT_MOVE_H__
+#define __XFS_SUPPORT_MOVE_H__
+
+#include <linux/uio.h>
+#include <asm/uaccess.h>
+
+/* Segment flag values. */
+enum uio_seg {
+	UIO_USERSPACE,          /* from user data space */
+	UIO_SYSSPACE,           /* from system space */
+};
+
+struct uio {
+	struct iovec	*uio_iov;   /* pointer to array of iovecs */
+	int		uio_iovcnt; /* number of iovecs in array */
+	xfs_off_t	uio_offset; /* offset in file this uio corresponds to */
+	int		uio_resid;  /* residual i/o count */
+	enum uio_seg	uio_segflg; /* see above */
+};
+
+typedef struct uio uio_t;
+typedef struct iovec iovec_t;
+
+extern int	uio_read (caddr_t, size_t, uio_t *);
+
+#endif  /* __XFS_SUPPORT_MOVE_H__ */
diff --git a/fs/xfs/support/qsort.c b/fs/xfs/support/qsort.c
new file mode 100644
index 00000000000000..1ec824140cf72e
--- /dev/null
+++ b/fs/xfs/support/qsort.c
@@ -0,0 +1,155 @@
+/*
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <linux/kernel.h>
+#include <linux/string.h>
+
+/*
+ * Qsort routine from Bentley & McIlroy's "Engineering a Sort Function".
+ */
+#define swapcode(TYPE, parmi, parmj, n) { 		\
+	long i = (n) / sizeof (TYPE); 			\
+	register TYPE *pi = (TYPE *) (parmi); 		\
+	register TYPE *pj = (TYPE *) (parmj); 		\
+	do { 						\
+		register TYPE	t = *pi;		\
+		*pi++ = *pj;				\
+		*pj++ = t;				\
+        } while (--i > 0);				\
+}
+
+#define SWAPINIT(a, es) swaptype = ((char *)a - (char *)0) % sizeof(long) || \
+	es % sizeof(long) ? 2 : es == sizeof(long)? 0 : 1;
+
+static __inline void
+swapfunc(char *a, char *b, int n, int swaptype)
+{
+	if (swaptype <= 1) 
+		swapcode(long, a, b, n)
+	else
+		swapcode(char, a, b, n)
+}
+
+#define swap(a, b)					\
+	if (swaptype == 0) {				\
+		long t = *(long *)(a);			\
+		*(long *)(a) = *(long *)(b);		\
+		*(long *)(b) = t;			\
+	} else						\
+		swapfunc(a, b, es, swaptype)
+
+#define vecswap(a, b, n) 	if ((n) > 0) swapfunc(a, b, n, swaptype)
+
+static __inline char *
+med3(char *a, char *b, char *c, int (*cmp)(const void *, const void *))
+{
+	return cmp(a, b) < 0 ?
+	       (cmp(b, c) < 0 ? b : (cmp(a, c) < 0 ? c : a ))
+              :(cmp(b, c) > 0 ? b : (cmp(a, c) < 0 ? a : c ));
+}
+
+void
+qsort(void *aa, size_t n, size_t es, int (*cmp)(const void *, const void *))
+{
+	char *pa, *pb, *pc, *pd, *pl, *pm, *pn;
+	int d, r, swaptype, swap_cnt;
+	register char *a = aa;
+
+loop:	SWAPINIT(a, es);
+	swap_cnt = 0;
+	if (n < 7) {
+		for (pm = (char *)a + es; pm < (char *) a + n * es; pm += es)
+			for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0;
+			     pl -= es)
+				swap(pl, pl - es);
+		return;
+	}
+	pm = (char *)a + (n / 2) * es;
+	if (n > 7) {
+		pl = (char *)a;
+		pn = (char *)a + (n - 1) * es;
+		if (n > 40) {
+			d = (n / 8) * es;
+			pl = med3(pl, pl + d, pl + 2 * d, cmp);
+			pm = med3(pm - d, pm, pm + d, cmp);
+			pn = med3(pn - 2 * d, pn - d, pn, cmp);
+		}
+		pm = med3(pl, pm, pn, cmp);
+	}
+	swap(a, pm);
+	pa = pb = (char *)a + es;
+
+	pc = pd = (char *)a + (n - 1) * es;
+	for (;;) {
+		while (pb <= pc && (r = cmp(pb, a)) <= 0) {
+			if (r == 0) {
+				swap_cnt = 1;
+				swap(pa, pb);
+				pa += es;
+			}
+			pb += es;
+		}
+		while (pb <= pc && (r = cmp(pc, a)) >= 0) {
+			if (r == 0) {
+				swap_cnt = 1;
+				swap(pc, pd);
+				pd -= es;
+			}
+			pc -= es;
+		}
+		if (pb > pc)
+			break;
+		swap(pb, pc);
+		swap_cnt = 1;
+		pb += es;
+		pc -= es;
+	}
+	if (swap_cnt == 0) {  /* Switch to insertion sort */
+		for (pm = (char *) a + es; pm < (char *) a + n * es; pm += es)
+			for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0; 
+			     pl -= es)
+				swap(pl, pl - es);
+		return;
+	}
+
+	pn = (char *)a + n * es;
+	r = min(pa - (char *)a, pb - pa);
+	vecswap(a, pb - r, r);
+	r = min((long)(pd - pc), (long)(pn - pd - es));
+	vecswap(pb, pn - r, r);
+	if ((r = pb - pa) > es)
+		qsort(a, r / es, es, cmp);
+	if ((r = pd - pc) > es) { 
+		/* Iterate rather than recurse to save stack space */
+		a = pn - r;
+		n = r / es;
+		goto loop;
+	}
+/*		qsort(pn - r, r / es, es, cmp);*/
+}
diff --git a/fs/xfs/support/qsort.h b/fs/xfs/support/qsort.h
new file mode 100644
index 00000000000000..94263106d716d8
--- /dev/null
+++ b/fs/xfs/support/qsort.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#ifndef QSORT_H
+#define QSORT_H
+
+extern void qsort (void *const pbase,
+		    size_t total_elems,
+		    size_t size,
+		    int (*cmp)(const void *, const void *));
+
+#endif
diff --git a/fs/xfs/support/uuid.c b/fs/xfs/support/uuid.c
new file mode 100644
index 00000000000000..81f40cfcb2679a
--- /dev/null
+++ b/fs/xfs/support/uuid.c
@@ -0,0 +1,151 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include <xfs.h>
+
+static mutex_t	uuid_monitor;
+static int	uuid_table_size;
+static uuid_t	*uuid_table;
+
+void
+uuid_init(void)
+{
+	mutex_init(&uuid_monitor, MUTEX_DEFAULT, "uuid_monitor");
+}
+
+/*
+ * uuid_getnodeuniq - obtain the node unique fields of a UUID.
+ *
+ * This is not in any way a standard or condoned UUID function;
+ * it just something that's needed for user-level file handles.
+ */
+void
+uuid_getnodeuniq(uuid_t *uuid, int fsid [2])
+{
+	char	*uu = (char *)uuid;
+
+	/* on IRIX, this function assumes big-endian fields within
+	 * the uuid, so we use INT_GET to get the same result on
+	 * little-endian systems
+	 */
+
+	fsid[0] = (INT_GET(*(u_int16_t*)(uu+8), ARCH_CONVERT) << 16) +
+		   INT_GET(*(u_int16_t*)(uu+4), ARCH_CONVERT);
+	fsid[1] =  INT_GET(*(u_int32_t*)(uu  ), ARCH_CONVERT);
+}
+
+void
+uuid_create_nil(uuid_t *uuid)
+{
+	memset(uuid, 0, sizeof(*uuid));
+}
+
+int
+uuid_is_nil(uuid_t *uuid)
+{
+	int	i;
+	char	*cp = (char *)uuid;
+
+	if (uuid == NULL)
+		return 0;
+	/* implied check of version number here... */
+	for (i = 0; i < sizeof *uuid; i++)
+		if (*cp++) return 0;	/* not nil */
+	return 1;	/* is nil */
+}
+
+int
+uuid_equal(uuid_t *uuid1, uuid_t *uuid2)
+{
+	return memcmp(uuid1, uuid2, sizeof(uuid_t)) ? 0 : 1;
+}
+
+/*
+ * Given a 128-bit uuid, return a 64-bit value by adding the top and bottom
+ * 64-bit words.  NOTE: This function can not be changed EVER.  Although
+ * brain-dead, some applications depend on this 64-bit value remaining
+ * persistent.  Specifically, DMI vendors store the value as a persistent
+ * filehandle.
+ */
+__uint64_t
+uuid_hash64(uuid_t *uuid)
+{
+	__uint64_t	*sp = (__uint64_t *)uuid;
+
+	return sp[0] + sp[1];
+}
+
+int
+uuid_table_insert(uuid_t *uuid)
+{
+	int	i, hole;
+
+	mutex_lock(&uuid_monitor, PVFS);
+	for (i = 0, hole = -1; i < uuid_table_size; i++) {
+		if (uuid_is_nil(&uuid_table[i])) {
+			hole = i;
+			continue;
+		}
+		if (uuid_equal(uuid, &uuid_table[i])) {
+			mutex_unlock(&uuid_monitor);
+			return 0;
+		}
+	}
+	if (hole < 0) {
+		uuid_table = kmem_realloc(uuid_table,
+			(uuid_table_size + 1) * sizeof(*uuid_table),
+			uuid_table_size  * sizeof(*uuid_table),
+			KM_SLEEP);
+		hole = uuid_table_size++;
+	}
+	uuid_table[hole] = *uuid;
+	mutex_unlock(&uuid_monitor);
+	return 1;
+}
+
+void
+uuid_table_remove(uuid_t *uuid)
+{
+	int	i;
+
+	mutex_lock(&uuid_monitor, PVFS);
+	for (i = 0; i < uuid_table_size; i++) {
+		if (uuid_is_nil(&uuid_table[i]))
+			continue;
+		if (!uuid_equal(uuid, &uuid_table[i]))
+			continue;
+		uuid_create_nil(&uuid_table[i]);
+		break;
+	}
+	ASSERT(i < uuid_table_size);
+	mutex_unlock(&uuid_monitor);
+}
diff --git a/fs/xfs/support/uuid.h b/fs/xfs/support/uuid.h
new file mode 100644
index 00000000000000..5220ea58ba2b62
--- /dev/null
+++ b/fs/xfs/support/uuid.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_SUPPORT_UUID_H__
+#define __XFS_SUPPORT_UUID_H__
+
+typedef struct {
+	unsigned char	__u_bits[16];
+} uuid_t;
+
+void uuid_init(void);
+void uuid_create_nil(uuid_t *uuid);
+int uuid_is_nil(uuid_t *uuid);
+int uuid_equal(uuid_t *uuid1, uuid_t *uuid2);
+void uuid_getnodeuniq(uuid_t *uuid, int fsid [2]);
+__uint64_t uuid_hash64(uuid_t *uuid);
+int uuid_table_insert(uuid_t *uuid);
+void uuid_table_remove(uuid_t *uuid);
+
+#endif	/* __XFS_SUPPORT_UUID_H__ */
diff --git a/fs/xfs/xfs.h b/fs/xfs/xfs.h
new file mode 100644
index 00000000000000..844048e4fbeea7
--- /dev/null
+++ b/fs/xfs/xfs.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_H__
+#define __XFS_H__
+
+#include <linux-2.4/xfs_linux.h>
+
+#include <xfs_fs.h> 
+#include <xfs_macros.h>
+
+#endif	/* __XFS_H__ */
diff --git a/fs/xfs/xfs_acl.c b/fs/xfs/xfs_acl.c
new file mode 100644
index 00000000000000..b800f8f4e058d9
--- /dev/null
+++ b/fs/xfs/xfs_acl.c
@@ -0,0 +1,974 @@
+/*
+ * Copyright (c) 2001-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+
+#include "xfs_inum.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_acl.h"
+#include "xfs_mac.h"
+#include "xfs_attr.h"
+
+#include <linux/posix_acl_xattr.h>
+
+STATIC int	xfs_acl_setmode(vnode_t *, xfs_acl_t *, int *);
+STATIC void     xfs_acl_filter_mode(mode_t, xfs_acl_t *);
+STATIC void	xfs_acl_get_endian(xfs_acl_t *);
+STATIC int	xfs_acl_access(uid_t, gid_t, xfs_acl_t *, mode_t, cred_t *);
+STATIC int	xfs_acl_invalid(xfs_acl_t *);
+STATIC void	xfs_acl_sync_mode(mode_t, xfs_acl_t *);
+STATIC void	xfs_acl_get_attr(vnode_t *, xfs_acl_t *, int, int, int *);
+STATIC void	xfs_acl_set_attr(vnode_t *, xfs_acl_t *, int, int *);
+STATIC int	xfs_acl_allow_set(vnode_t *, int);
+
+kmem_zone_t *xfs_acl_zone;
+
+
+/*
+ * Test for existence of access ACL attribute as efficiently as possible.
+ */
+int
+xfs_acl_vhasacl_access(
+	vnode_t		*vp)
+{
+	int		error;
+
+	xfs_acl_get_attr(vp, NULL, _ACL_TYPE_ACCESS, ATTR_KERNOVAL, &error);
+	return (error == 0);
+}
+
+/*
+ * Test for existence of default ACL attribute as efficiently as possible.
+ */
+int
+xfs_acl_vhasacl_default(
+	vnode_t		*vp)
+{
+	int		error;
+
+	if (vp->v_type != VDIR)
+		return 0;
+	xfs_acl_get_attr(vp, NULL, _ACL_TYPE_DEFAULT, ATTR_KERNOVAL, &error);
+	return (error == 0);
+}
+
+/*
+ * Convert from extended attribute representation to in-memory for XFS.
+ */
+STATIC int
+posix_acl_xattr_to_xfs(
+	posix_acl_xattr_header	*src,
+	size_t			size,
+	xfs_acl_t		*dest)
+{
+	posix_acl_xattr_entry	*src_entry;
+	xfs_acl_entry_t		*dest_entry;
+	int			n;
+
+	if (!src || !dest)
+		return EINVAL;
+
+	if (size < sizeof(posix_acl_xattr_header))
+		return EINVAL;
+
+	if (src->a_version != cpu_to_le32(POSIX_ACL_XATTR_VERSION))
+		return EOPNOTSUPP;
+
+	memset(dest, 0, sizeof(xfs_acl_t));
+	dest->acl_cnt = posix_acl_xattr_count(size);
+	if (dest->acl_cnt < 0 || dest->acl_cnt > XFS_ACL_MAX_ENTRIES)
+		return EINVAL;
+
+	/*
+	 * acl_set_file(3) may request that we set default ACLs with
+	 * zero length -- defend (gracefully) against that here.
+	 */
+	if (!dest->acl_cnt)
+		return 0;
+
+	src_entry = (posix_acl_xattr_entry *)((char *)src + sizeof(*src));
+	dest_entry = &dest->acl_entry[0];
+
+	for (n = 0; n < dest->acl_cnt; n++, src_entry++, dest_entry++) {
+		dest_entry->ae_perm = le16_to_cpu(src_entry->e_perm);
+		if (_ACL_PERM_INVALID(dest_entry->ae_perm))
+			return EINVAL;
+		dest_entry->ae_tag  = le16_to_cpu(src_entry->e_tag);
+		switch(dest_entry->ae_tag) {
+		case ACL_USER:
+		case ACL_GROUP:
+			dest_entry->ae_id = le32_to_cpu(src_entry->e_id);
+			break;
+		case ACL_USER_OBJ:
+		case ACL_GROUP_OBJ:
+		case ACL_MASK:
+		case ACL_OTHER:
+			dest_entry->ae_id = ACL_UNDEFINED_ID;
+			break;
+		default:
+			return EINVAL;
+		}
+	}
+	if (xfs_acl_invalid(dest))
+		return EINVAL;
+
+	return 0;
+}
+
+/*
+ * Comparison function called from qsort().
+ * Primary key is ae_tag, secondary key is ae_id.
+ */
+STATIC int
+xfs_acl_entry_compare(
+	const void	*va,
+	const void	*vb)
+{
+	xfs_acl_entry_t	*a = (xfs_acl_entry_t *)va,
+			*b = (xfs_acl_entry_t *)vb;
+
+	if (a->ae_tag == b->ae_tag)
+		return (a->ae_id - b->ae_id);
+	return (a->ae_tag - b->ae_tag);
+}
+
+/*
+ * Convert from in-memory XFS to extended attribute representation.
+ */
+STATIC int
+posix_acl_xfs_to_xattr(
+	xfs_acl_t		*src,
+	posix_acl_xattr_header	*dest,
+	size_t			size)
+{
+	int			n;
+	size_t			new_size = posix_acl_xattr_size(src->acl_cnt);
+	posix_acl_xattr_entry	*dest_entry;
+	xfs_acl_entry_t		*src_entry;
+
+	if (size < new_size)
+		return -ERANGE;
+
+	/* Need to sort src XFS ACL by <ae_tag,ae_id> */
+	qsort(src->acl_entry, src->acl_cnt, sizeof(src->acl_entry[0]),
+		xfs_acl_entry_compare);
+
+	dest->a_version = cpu_to_le32(POSIX_ACL_XATTR_VERSION);
+	dest_entry = &dest->a_entries[0];
+	src_entry = &src->acl_entry[0];
+	for (n = 0; n < src->acl_cnt; n++, dest_entry++, src_entry++) {
+		dest_entry->e_perm = cpu_to_le16(src_entry->ae_perm);
+		if (_ACL_PERM_INVALID(src_entry->ae_perm))
+			return -EINVAL;
+		dest_entry->e_tag  = cpu_to_le16(src_entry->ae_tag);
+		switch (src_entry->ae_tag) {
+		case ACL_USER:
+		case ACL_GROUP:
+			dest_entry->e_id = cpu_to_le32(src_entry->ae_id);
+				break;
+		case ACL_USER_OBJ:
+		case ACL_GROUP_OBJ:
+		case ACL_MASK:
+		case ACL_OTHER:
+			dest_entry->e_id = cpu_to_le32(ACL_UNDEFINED_ID);
+			break;
+		default:
+			return -EINVAL;
+		}
+	}
+	return new_size;
+}
+
+int
+xfs_acl_vget(
+	vnode_t		*vp,
+	void		*acl,
+	size_t		size,
+	int		kind)
+{
+	int			error;
+	xfs_acl_t		*xfs_acl = NULL;
+	posix_acl_xattr_header	*ext_acl = acl;
+	int			flags = 0;
+
+	VN_HOLD(vp);
+	if(size) {
+		if (!(_ACL_ALLOC(xfs_acl))) {
+			error = ENOMEM;
+			goto out;
+		}
+		memset(xfs_acl, 0, sizeof(xfs_acl_t));
+	} else
+		flags = ATTR_KERNOVAL;
+
+	xfs_acl_get_attr(vp, xfs_acl, kind, flags, &error);
+	if (error)
+		goto out;
+
+	if (!size) {
+		error = -posix_acl_xattr_size(XFS_ACL_MAX_ENTRIES);
+	} else {
+		if (xfs_acl_invalid(xfs_acl)) {
+			error = EINVAL;
+			goto out;
+		}
+		if (kind == _ACL_TYPE_ACCESS) {
+			vattr_t	va;
+
+			va.va_mask = XFS_AT_MODE;
+			VOP_GETATTR(vp, &va, 0, sys_cred, error);
+			if (error)
+				goto out;
+			xfs_acl_sync_mode(va.va_mode, xfs_acl);
+		}
+		error = -posix_acl_xfs_to_xattr(xfs_acl, ext_acl, size);
+	}
+out:
+	VN_RELE(vp);
+	if(xfs_acl)
+		_ACL_FREE(xfs_acl);
+	return -error;
+}
+
+int
+xfs_acl_vremove(
+	vnode_t		*vp,
+	int		kind)
+{
+	int		error;
+
+	VN_HOLD(vp);
+	error = xfs_acl_allow_set(vp, kind);
+	if (!error) {
+		VOP_ATTR_REMOVE(vp, kind == _ACL_TYPE_DEFAULT?
+				SGI_ACL_DEFAULT: SGI_ACL_FILE,
+				ATTR_ROOT, sys_cred, error);
+		if (error == ENOATTR)
+			error = 0;	/* 'scool */
+	}
+	VN_RELE(vp);
+	return -error;
+}
+
+int
+xfs_acl_vset(
+	vnode_t			*vp,
+	void			*acl,
+	size_t			size,
+	int			kind)
+{
+	posix_acl_xattr_header	*ext_acl = acl;
+	xfs_acl_t		*xfs_acl;
+	int			error;
+	int			basicperms = 0; /* more than std unix perms? */
+
+	if (!acl)
+		return -EINVAL;
+
+	if (!(_ACL_ALLOC(xfs_acl)))
+		return -ENOMEM;
+
+	error = posix_acl_xattr_to_xfs(ext_acl, size, xfs_acl);
+	if (error) {
+		_ACL_FREE(xfs_acl);
+		return -error;
+	}
+	if (!xfs_acl->acl_cnt) {
+		_ACL_FREE(xfs_acl);
+		return 0;
+	}
+
+	VN_HOLD(vp);
+	error = xfs_acl_allow_set(vp, kind);
+	if (error)
+		goto out;
+
+	/* Incoming ACL exists, set file mode based on its value */
+	if (kind == _ACL_TYPE_ACCESS)
+		xfs_acl_setmode(vp, xfs_acl, &basicperms);
+
+	/*
+	 * If we have more than std unix permissions, set up the actual attr.
+	 * Otherwise, delete any existing attr.  This prevents us from
+	 * having actual attrs for permissions that can be stored in the
+	 * standard permission bits.
+	 */
+	if (!basicperms) {
+		xfs_acl_set_attr(vp, xfs_acl, kind, &error);
+	} else {
+		xfs_acl_vremove(vp, _ACL_TYPE_ACCESS);
+	}
+
+out:
+	VN_RELE(vp);
+	_ACL_FREE(xfs_acl);
+	return -error;
+}
+
+int
+xfs_acl_iaccess(
+	xfs_inode_t	*ip,
+	mode_t		mode,
+	cred_t		*cr)
+{
+	xfs_acl_t	*acl;
+	int		rval;
+
+	if (!(_ACL_ALLOC(acl)))
+		return -1;
+
+	/* If the file has no ACL return -1. */
+	rval = sizeof(xfs_acl_t);
+	if (xfs_attr_fetch(ip, SGI_ACL_FILE, SGI_ACL_FILE_SIZE,
+			(char *)acl, &rval, ATTR_ROOT | ATTR_KERNACCESS, cr)) {
+		_ACL_FREE(acl);
+		return -1;
+	}
+	xfs_acl_get_endian(acl);
+
+	/* If the file has an empty ACL return -1. */
+	if (acl->acl_cnt == XFS_ACL_NOT_PRESENT) {
+		_ACL_FREE(acl);
+		return -1;
+	}
+
+	/* Synchronize ACL with mode bits */
+	xfs_acl_sync_mode(ip->i_d.di_mode, acl);
+
+	rval = xfs_acl_access(ip->i_d.di_uid, ip->i_d.di_gid, acl, mode, cr);
+	_ACL_FREE(acl);
+	return rval;
+}
+
+STATIC int
+xfs_acl_allow_set(
+	vnode_t		*vp,
+	int		kind)
+{
+	vattr_t		va;
+	int		error;
+
+	if (vp->v_inode.i_flags & (S_IMMUTABLE|S_APPEND))
+		return EPERM;
+	if (kind == _ACL_TYPE_DEFAULT && vp->v_type != VDIR)
+		return ENOTDIR;
+	if (vp->v_vfsp->vfs_flag & VFS_RDONLY)
+		return EROFS;
+	va.va_mask = XFS_AT_UID;
+	VOP_GETATTR(vp, &va, 0, NULL, error);
+	if (error)
+		return error;
+	if (va.va_uid != current->fsuid && !capable(CAP_FOWNER))
+		return EPERM;
+	return error;
+}
+
+/*
+ * Look for any effective exec access, to allow CAP_DAC_OVERRIDE for exec.
+ * Ignore checking for exec in USER_OBJ when there is no mask, because
+ * in this "minimal acl" case we don't have any actual acls, and we
+ * won't even be here.
+ */
+STATIC int
+xfs_acl_find_any_exec(
+	xfs_acl_t	*fap)
+{
+	int		i;
+	int		masked_aces = 0;
+	int		mask = 0;
+
+	for (i = 0; i < fap->acl_cnt; i++) {
+		if (fap->acl_entry[i].ae_perm & ACL_EXECUTE) {
+			if (fap->acl_entry[i].ae_tag & (ACL_USER_OBJ|ACL_OTHER))
+				return 1;
+
+			if (fap->acl_entry[i].ae_tag == ACL_MASK)
+				mask = fap->acl_entry[i].ae_perm;
+			else
+				masked_aces |= fap->acl_entry[i].ae_perm;
+
+			if ((mask & masked_aces) & ACL_EXECUTE)
+				return 1;
+		}
+	}
+
+	return 0;
+}
+
+/*
+ * The access control process to determine the access permission:
+ *	if uid == file owner id, use the file owner bits.
+ *	if gid == file owner group id, use the file group bits.
+ *	scan ACL for a maching user or group, and use matched entry
+ *	permission. Use total permissions of all matching group entries,
+ *	until all acl entries are exhausted. The final permission produced
+ *	by matching acl entry or entries needs to be & with group permission.
+ *	if not owner, owning group, or matching entry in ACL, use file
+ *	other bits.  Don't allow CAP_DAC_OVERRIDE on exec access unless
+ *	there is some effective exec access somewhere.
+ */
+STATIC int
+xfs_acl_capability_check(
+	mode_t		mode,
+	cred_t		*cr,
+	xfs_acl_t	*fap)
+{
+	if ((mode & ACL_READ) && !capable_cred(cr, CAP_DAC_READ_SEARCH))
+		return EACCES;
+	if ((mode & ACL_WRITE) && !capable_cred(cr, CAP_DAC_OVERRIDE))
+		return EACCES;
+	if ((mode & ACL_EXECUTE) &&
+	    (!capable_cred(cr, CAP_DAC_OVERRIDE) ||
+	     !xfs_acl_find_any_exec(fap))) {
+		return EACCES;
+	}
+
+	return 0;
+}
+
+/*
+ * Note: cr is only used here for the capability check if the ACL test fails.
+ *       It is not used to find out the credentials uid or groups etc, as was
+ *       done in IRIX. It is assumed that the uid and groups for the current
+ *       thread are taken from "current" instead of the cr parameter.
+ */
+STATIC int
+xfs_acl_access(
+	uid_t		fuid,
+	gid_t		fgid,
+	xfs_acl_t	*fap,
+	mode_t		md,
+	cred_t		*cr)
+{
+	xfs_acl_entry_t	matched;
+	int		i, allows;
+	int		maskallows = -1;	/* true, but not 1, either */
+	int		seen_userobj = 0;
+
+	matched.ae_tag = 0;	/* Invalid type */
+	md >>= 6;	/* Normalize the bits for comparison */
+
+	for (i = 0; i < fap->acl_cnt; i++) {
+		/*
+		 * Break out if we've got a user_obj entry or
+		 * a user entry and the mask (and have processed USER_OBJ)
+		 */
+		if (matched.ae_tag == ACL_USER_OBJ)
+			break;
+		if (matched.ae_tag == ACL_USER) {
+			if (maskallows != -1 && seen_userobj)
+				break;
+			if (fap->acl_entry[i].ae_tag != ACL_MASK &&
+			    fap->acl_entry[i].ae_tag != ACL_USER_OBJ)
+				continue;
+		}
+		/* True if this entry allows the requested access */
+		allows = ((fap->acl_entry[i].ae_perm & md) == md);
+
+		switch (fap->acl_entry[i].ae_tag) {
+		case ACL_USER_OBJ:
+			seen_userobj = 1;
+			if (fuid != current->fsuid)
+				continue;
+			matched.ae_tag = ACL_USER_OBJ;
+			matched.ae_perm = allows;
+			break;
+		case ACL_USER:
+			if (fap->acl_entry[i].ae_id != current->fsuid)
+				continue;
+			matched.ae_tag = ACL_USER;
+			matched.ae_perm = allows;
+			break;
+		case ACL_GROUP_OBJ:
+			if ((matched.ae_tag == ACL_GROUP_OBJ ||
+			    matched.ae_tag == ACL_GROUP) && !allows)
+				continue;
+			if (!in_group_p(fgid))
+				continue;
+			matched.ae_tag = ACL_GROUP_OBJ;
+			matched.ae_perm = allows;
+			break;
+		case ACL_GROUP:
+			if ((matched.ae_tag == ACL_GROUP_OBJ ||
+			    matched.ae_tag == ACL_GROUP) && !allows)
+				continue;
+			if (!in_group_p(fap->acl_entry[i].ae_id))
+				continue;
+			matched.ae_tag = ACL_GROUP;
+			matched.ae_perm = allows;
+			break;
+		case ACL_MASK:
+			maskallows = allows;
+			break;
+		case ACL_OTHER:
+			if (matched.ae_tag != 0)
+				continue;
+			matched.ae_tag = ACL_OTHER;
+			matched.ae_perm = allows;
+			break;
+		}
+	}
+	/*
+	 * First possibility is that no matched entry allows access.
+	 * The capability to override DAC may exist, so check for it.
+	 */
+	switch (matched.ae_tag) {
+	case ACL_OTHER:
+	case ACL_USER_OBJ:
+		if (matched.ae_perm)
+			return 0;
+		break;
+	case ACL_USER:
+	case ACL_GROUP_OBJ:
+	case ACL_GROUP:
+		if (maskallows && matched.ae_perm)
+			return 0;
+		break;
+	case 0:
+		break;
+	}
+
+	return xfs_acl_capability_check(md, cr, fap);
+}
+
+/*
+ * ACL validity checker.
+ *   This acl validation routine checks each ACL entry read in makes sense.
+ */
+STATIC int
+xfs_acl_invalid(
+	xfs_acl_t	*aclp)
+{
+	xfs_acl_entry_t	*entry, *e;
+	int		user = 0, group = 0, other = 0, mask = 0;
+	int		mask_required = 0;
+	int		i, j;
+
+	if (!aclp)
+		goto acl_invalid;
+
+	if (aclp->acl_cnt > XFS_ACL_MAX_ENTRIES)
+		goto acl_invalid;
+
+	for (i = 0; i < aclp->acl_cnt; i++) {
+		entry = &aclp->acl_entry[i];
+		switch (entry->ae_tag) {
+		case ACL_USER_OBJ:
+			if (user++)
+				goto acl_invalid;
+			break;
+		case ACL_GROUP_OBJ:
+			if (group++)
+				goto acl_invalid;
+			break;
+		case ACL_OTHER:
+			if (other++)
+				goto acl_invalid;
+			break;
+		case ACL_USER:
+		case ACL_GROUP:
+			for (j = i + 1; j < aclp->acl_cnt; j++) {
+				e = &aclp->acl_entry[j];
+				if (e->ae_id == entry->ae_id &&
+				    e->ae_tag == entry->ae_tag)
+					goto acl_invalid;
+			}
+			mask_required++;
+			break;
+		case ACL_MASK:
+			if (mask++)
+				goto acl_invalid;
+			break;
+		default:
+			goto acl_invalid;
+		}
+	}
+	if (!user || !group || !other || (mask_required && !mask))
+		goto acl_invalid;
+	else
+		return 0;
+acl_invalid:
+	return EINVAL;
+}
+
+/*
+ * Do ACL endian conversion.
+ */
+STATIC void
+xfs_acl_get_endian(
+	xfs_acl_t	*aclp)
+{
+	xfs_acl_entry_t	*ace, *end;
+
+	INT_SET(aclp->acl_cnt, ARCH_CONVERT, aclp->acl_cnt);
+	end = &aclp->acl_entry[0]+aclp->acl_cnt;
+	for (ace = &aclp->acl_entry[0]; ace < end; ace++) {
+		INT_SET(ace->ae_tag, ARCH_CONVERT, ace->ae_tag);
+		INT_SET(ace->ae_id, ARCH_CONVERT, ace->ae_id);
+		INT_SET(ace->ae_perm, ARCH_CONVERT, ace->ae_perm);
+	}
+}
+
+/*
+ * Get the ACL from the EA and do endian conversion.
+ */
+STATIC void
+xfs_acl_get_attr(
+	vnode_t		*vp,
+	xfs_acl_t	*aclp,
+	int		kind,
+	int		flags,
+	int		*error)
+{
+	int		len = sizeof(xfs_acl_t);
+
+	ASSERT((flags & ATTR_KERNOVAL) ? (aclp == NULL) : 1);
+	flags |= ATTR_ROOT;
+	VOP_ATTR_GET(vp,
+		kind == _ACL_TYPE_ACCESS ? SGI_ACL_FILE : SGI_ACL_DEFAULT,
+		(char *)aclp, &len, flags, sys_cred, *error);
+	if (*error || (flags & ATTR_KERNOVAL))
+		return;
+	xfs_acl_get_endian(aclp);
+}
+
+/*
+ * Set the EA with the ACL and do endian conversion.
+ */
+STATIC void
+xfs_acl_set_attr(
+	vnode_t		*vp,
+	xfs_acl_t	*aclp,
+	int		kind,
+	int		*error)
+{
+	xfs_acl_entry_t	*ace, *newace, *end;
+	xfs_acl_t	*newacl;
+	int		len;
+
+	if (!(_ACL_ALLOC(newacl))) {
+		*error = ENOMEM;
+		return;
+	}
+
+	len = sizeof(xfs_acl_t) -
+	      (sizeof(xfs_acl_entry_t) * (XFS_ACL_MAX_ENTRIES - aclp->acl_cnt));
+	end = &aclp->acl_entry[0]+aclp->acl_cnt;
+	for (ace = &aclp->acl_entry[0], newace = &newacl->acl_entry[0];
+	     ace < end;
+	     ace++, newace++) {
+		INT_SET(newace->ae_tag, ARCH_CONVERT, ace->ae_tag);
+		INT_SET(newace->ae_id, ARCH_CONVERT, ace->ae_id);
+		INT_SET(newace->ae_perm, ARCH_CONVERT, ace->ae_perm);
+	}
+	INT_SET(newacl->acl_cnt, ARCH_CONVERT, aclp->acl_cnt);
+	VOP_ATTR_SET(vp,
+		kind == _ACL_TYPE_ACCESS ? SGI_ACL_FILE: SGI_ACL_DEFAULT,
+		(char *)newacl, len, ATTR_ROOT, sys_cred, *error);
+	_ACL_FREE(newacl);
+}
+
+int
+xfs_acl_vtoacl(
+	vnode_t		*vp,
+	xfs_acl_t	*access_acl,
+	xfs_acl_t	*default_acl)
+{
+	vattr_t		va;
+	int		error = 0;
+
+	if (access_acl) {
+		/*
+		 * Get the Access ACL and the mode.  If either cannot
+		 * be obtained for some reason, invalidate the access ACL.
+		 */
+		xfs_acl_get_attr(vp, access_acl, _ACL_TYPE_ACCESS, 0, &error);
+		if (!error) {
+			/* Got the ACL, need the mode... */
+			va.va_mask = XFS_AT_MODE;
+			VOP_GETATTR(vp, &va, 0, sys_cred, error);
+		}
+
+		if (error)
+			access_acl->acl_cnt = XFS_ACL_NOT_PRESENT;
+		else /* We have a good ACL and the file mode, synchronize. */
+			xfs_acl_sync_mode(va.va_mode, access_acl);
+	}
+
+	if (default_acl) {
+		xfs_acl_get_attr(vp, default_acl, _ACL_TYPE_DEFAULT, 0, &error);
+		if (error)
+			default_acl->acl_cnt = XFS_ACL_NOT_PRESENT;
+	}
+	return error;
+}
+
+/*
+ * This function retrieves the parent directory's acl, processes it
+ * and lets the child inherit the acl(s) that it should.
+ */
+int
+xfs_acl_inherit(
+	vnode_t		*vp,
+	vattr_t		*vap,
+	xfs_acl_t	*pdaclp)
+{
+	xfs_acl_t	*cacl;
+	int		error = 0;
+	int		basicperms = 0;
+
+	/*
+	 * If the parent does not have a default ACL, or it's an
+	 * invalid ACL, we're done.
+	 */
+	if (!vp)
+		return 0;
+	if (!pdaclp || xfs_acl_invalid(pdaclp))
+		return 0;
+
+	/*
+	 * Copy the default ACL of the containing directory to
+	 * the access ACL of the new file and use the mode that
+	 * was passed in to set up the correct initial values for
+	 * the u::,g::[m::], and o:: entries.  This is what makes
+	 * umask() "work" with ACL's.
+	 */
+
+	if (!(_ACL_ALLOC(cacl)))
+		return ENOMEM;
+
+	memcpy(cacl, pdaclp, sizeof(xfs_acl_t));
+	xfs_acl_filter_mode(vap->va_mode, cacl);
+	xfs_acl_setmode(vp, cacl, &basicperms);
+
+	/*
+	 * Set the Default and Access ACL on the file.  The mode is already
+	 * set on the file, so we don't need to worry about that.
+	 *
+	 * If the new file is a directory, its default ACL is a copy of
+	 * the containing directory's default ACL.
+	 */
+	if (vp->v_type == VDIR)
+		xfs_acl_set_attr(vp, pdaclp, _ACL_TYPE_DEFAULT, &error);
+	if (!error && !basicperms)
+		xfs_acl_set_attr(vp, cacl, _ACL_TYPE_ACCESS, &error);
+	_ACL_FREE(cacl);
+	return error;
+}
+
+/*
+ * Set up the correct mode on the file based on the supplied ACL.  This
+ * makes sure that the mode on the file reflects the state of the
+ * u::,g::[m::], and o:: entries in the ACL.  Since the mode is where
+ * the ACL is going to get the permissions for these entries, we must
+ * synchronize the mode whenever we set the ACL on a file.
+ */
+STATIC int
+xfs_acl_setmode(
+	vnode_t		*vp,
+	xfs_acl_t	*acl,
+	int		*basicperms)
+{
+	vattr_t		va;
+	xfs_acl_entry_t	*ap;
+	xfs_acl_entry_t	*gap = NULL;
+	int		i, error, nomask = 1;
+
+	*basicperms = 1;
+
+	if (acl->acl_cnt == XFS_ACL_NOT_PRESENT)
+		return 0;
+
+	/*
+	 * Copy the u::, g::, o::, and m:: bits from the ACL into the
+	 * mode.  The m:: bits take precedence over the g:: bits.
+	 */
+	va.va_mask = XFS_AT_MODE;
+	VOP_GETATTR(vp, &va, 0, sys_cred, error);
+	if (error)
+		return error;
+
+	va.va_mask = XFS_AT_MODE;
+	va.va_mode &= ~(S_IRWXU|S_IRWXG|S_IRWXO);
+	ap = acl->acl_entry;
+	for (i = 0; i < acl->acl_cnt; ++i) {
+		switch (ap->ae_tag) {
+		case ACL_USER_OBJ:
+			va.va_mode |= ap->ae_perm << 6;
+			break;
+		case ACL_GROUP_OBJ:
+			gap = ap;
+			break;
+		case ACL_MASK:	/* more than just standard modes */
+			nomask = 0;
+			va.va_mode |= ap->ae_perm << 3;
+			*basicperms = 0;
+			break;
+		case ACL_OTHER:
+			va.va_mode |= ap->ae_perm;
+			break;
+		default:	/* more than just standard modes */
+			*basicperms = 0;
+			break;
+		}
+		ap++;
+	}
+
+	/* Set the group bits from ACL_GROUP_OBJ if there's no ACL_MASK */
+	if (gap && nomask)
+		va.va_mode |= gap->ae_perm << 3;
+
+	VOP_SETATTR(vp, &va, 0, sys_cred, error);
+	return error;
+}
+
+/*
+ * The permissions for the special ACL entries (u::, g::[m::], o::) are
+ * actually stored in the file mode (if there is both a group and a mask,
+ * the group is stored in the ACL entry and the mask is stored on the file).
+ * This allows the mode to remain automatically in sync with the ACL without
+ * the need for a call-back to the ACL system at every point where the mode
+ * could change.  This function takes the permissions from the specified mode
+ * and places it in the supplied ACL.
+ *
+ * This implementation draws its validity from the fact that, when the ACL
+ * was assigned, the mode was copied from the ACL.
+ * If the mode did not change, therefore, the mode remains exactly what was
+ * taken from the special ACL entries at assignment.
+ * If a subsequent chmod() was done, the POSIX spec says that the change in
+ * mode must cause an update to the ACL seen at user level and used for
+ * access checks.  Before and after a mode change, therefore, the file mode
+ * most accurately reflects what the special ACL entries should permit/deny.
+ *
+ * CAVEAT: If someone sets the SGI_ACL_FILE attribute directly,
+ *         the existing mode bits will override whatever is in the
+ *         ACL. Similarly, if there is a pre-existing ACL that was
+ *         never in sync with its mode (owing to a bug in 6.5 and
+ *         before), it will now magically (or mystically) be
+ *         synchronized.  This could cause slight astonishment, but
+ *         it is better than inconsistent permissions.
+ *
+ * The supplied ACL is a template that may contain any combination
+ * of special entries.  These are treated as place holders when we fill
+ * out the ACL.  This routine does not add or remove special entries, it
+ * simply unites each special entry with its associated set of permissions.
+ */
+STATIC void
+xfs_acl_sync_mode(
+	mode_t		mode,
+	xfs_acl_t	*acl)
+{
+	int		i, nomask = 1;
+	xfs_acl_entry_t	*ap;
+	xfs_acl_entry_t	*gap = NULL;
+
+	/*
+	 * Set ACL entries. POSIX1003.1eD16 requires that the MASK
+	 * be set instead of the GROUP entry, if there is a MASK.
+	 */
+	for (ap = acl->acl_entry, i = 0; i < acl->acl_cnt; ap++, i++) {
+		switch (ap->ae_tag) {
+		case ACL_USER_OBJ:
+			ap->ae_perm = (mode >> 6) & 0x7;
+			break;
+		case ACL_GROUP_OBJ:
+			gap = ap;
+			break;
+		case ACL_MASK:
+			nomask = 0;
+			ap->ae_perm = (mode >> 3) & 0x7;
+			break;
+		case ACL_OTHER:
+			ap->ae_perm = mode & 0x7;
+			break;
+		default:
+			break;
+		}
+	}
+	/* Set the ACL_GROUP_OBJ if there's no ACL_MASK */
+	if (gap && nomask)
+		gap->ae_perm = (mode >> 3) & 0x7;
+}
+
+/*
+ * When inheriting an Access ACL from a directory Default ACL,
+ * the ACL bits are set to the intersection of the ACL default
+ * permission bits and the file permission bits in mode. If there
+ * are no permission bits on the file then we must not give them
+ * the ACL. This is what what makes umask() work with ACLs.
+ */
+STATIC void
+xfs_acl_filter_mode(
+	mode_t		mode,
+	xfs_acl_t	*acl)
+{
+	int		i, nomask = 1;
+	xfs_acl_entry_t	*ap;
+	xfs_acl_entry_t	*gap = NULL;
+
+	/*
+	 * Set ACL entries. POSIX1003.1eD16 requires that the MASK
+	 * be merged with GROUP entry, if there is a MASK.
+	 */
+	for (ap = acl->acl_entry, i = 0; i < acl->acl_cnt; ap++, i++) {
+		switch (ap->ae_tag) {
+		case ACL_USER_OBJ:
+			ap->ae_perm &= (mode >> 6) & 0x7;
+			break;
+		case ACL_GROUP_OBJ:
+			gap = ap;
+			break;
+		case ACL_MASK:
+			nomask = 0;
+			ap->ae_perm &= (mode >> 3) & 0x7;
+			break;
+		case ACL_OTHER:
+			ap->ae_perm &= mode & 0x7;
+			break;
+		default:
+			break;
+		}
+	}
+	/* Set the ACL_GROUP_OBJ if there's no ACL_MASK */
+	if (gap && nomask)
+		gap->ae_perm &= (mode >> 3) & 0x7;
+}
diff --git a/fs/xfs/xfs_acl.h b/fs/xfs/xfs_acl.h
new file mode 100644
index 00000000000000..0363eb46d35720
--- /dev/null
+++ b/fs/xfs/xfs_acl.h
@@ -0,0 +1,116 @@
+/*
+ * Copyright (c) 2001-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_ACL_H__
+#define __XFS_ACL_H__
+
+/*
+ * Access Control Lists
+ */
+typedef __uint16_t	xfs_acl_perm_t;
+typedef __int32_t	xfs_acl_type_t;
+typedef __int32_t	xfs_acl_tag_t;
+typedef __int32_t	xfs_acl_id_t;
+
+#define XFS_ACL_MAX_ENTRIES 25
+#define XFS_ACL_NOT_PRESENT (-1)
+
+typedef struct xfs_acl_entry {
+	xfs_acl_tag_t	ae_tag;
+	xfs_acl_id_t	ae_id;
+	xfs_acl_perm_t	ae_perm;
+} xfs_acl_entry_t;
+
+typedef struct xfs_acl {
+	__int32_t	acl_cnt;
+	xfs_acl_entry_t	acl_entry[XFS_ACL_MAX_ENTRIES];
+} xfs_acl_t;
+
+/* On-disk XFS extended attribute names */
+#define SGI_ACL_FILE	"SGI_ACL_FILE"
+#define SGI_ACL_DEFAULT	"SGI_ACL_DEFAULT"
+#define SGI_ACL_FILE_SIZE	(sizeof(SGI_ACL_FILE)-1)
+#define SGI_ACL_DEFAULT_SIZE	(sizeof(SGI_ACL_DEFAULT)-1)
+
+
+#ifdef CONFIG_XFS_POSIX_ACL
+
+struct vattr;
+struct vnode;
+struct xfs_inode;
+
+extern struct kmem_zone *xfs_acl_zone;
+#define xfs_acl_zone_init(zone, name)	\
+		(zone) = kmem_zone_init(sizeof(xfs_acl_t), name)
+#define xfs_acl_zone_destroy(zone)	kmem_cache_destroy(zone)
+
+extern int xfs_acl_inherit(struct vnode *, struct vattr *, xfs_acl_t *);
+extern int xfs_acl_iaccess(struct xfs_inode *, mode_t, cred_t *);
+extern int xfs_acl_vtoacl(struct vnode *, xfs_acl_t *, xfs_acl_t *);
+extern int xfs_acl_vhasacl_access(struct vnode *);
+extern int xfs_acl_vhasacl_default(struct vnode *);
+extern int xfs_acl_vset(struct vnode *, void *, size_t, int);
+extern int xfs_acl_vget(struct vnode *, void *, size_t, int);
+extern int xfs_acl_vremove(struct vnode *vp, int);
+
+#define _ACL_TYPE_ACCESS	1
+#define _ACL_TYPE_DEFAULT	2
+#define _ACL_PERM_INVALID(perm)	((perm) & ~(ACL_READ|ACL_WRITE|ACL_EXECUTE))
+
+#define _ACL_INHERIT(c,v,d)	(xfs_acl_inherit(c,v,d))
+#define _ACL_GET_ACCESS(pv,pa)	(xfs_acl_vtoacl(pv,pa,NULL) == 0)
+#define _ACL_GET_DEFAULT(pv,pd)	(xfs_acl_vtoacl(pv,NULL,pd) == 0)
+#define _ACL_ACCESS_EXISTS	xfs_acl_vhasacl_access
+#define _ACL_DEFAULT_EXISTS	xfs_acl_vhasacl_default
+#define _ACL_XFS_IACCESS(i,m,c) (XFS_IFORK_Q(i) ? xfs_acl_iaccess(i,m,c) : -1)
+
+#define _ACL_ALLOC(a)		((a) = kmem_zone_alloc(xfs_acl_zone, KM_SLEEP))
+#define _ACL_FREE(a)		((a)? kmem_zone_free(xfs_acl_zone, (a)):(void)0)
+
+#else
+#define xfs_acl_zone_init(zone,name)
+#define xfs_acl_zone_destroy(zone)
+#define xfs_acl_vset(v,p,sz,t)	(-EOPNOTSUPP)
+#define xfs_acl_vget(v,p,sz,t)	(-EOPNOTSUPP)
+#define xfs_acl_vremove(v,t)	(-EOPNOTSUPP)
+#define xfs_acl_vhasacl_access(v)	(0)
+#define xfs_acl_vhasacl_default(v)	(0)
+#define _ACL_ALLOC(a)		(1)	/* successfully allocate nothing */
+#define _ACL_FREE(a)		((void)0)
+#define _ACL_INHERIT(c,v,d)	(0)
+#define _ACL_GET_ACCESS(pv,pa)	(0)
+#define _ACL_GET_DEFAULT(pv,pd)	(0)
+#define _ACL_ACCESS_EXISTS	(NULL)
+#define _ACL_DEFAULT_EXISTS	(NULL)
+#define _ACL_XFS_IACCESS(i,m,c) (-1)
+#endif
+
+#endif	/* __XFS_ACL_H__ */
diff --git a/fs/xfs/xfs_ag.h b/fs/xfs/xfs_ag.h
new file mode 100644
index 00000000000000..96b70f7fba397b
--- /dev/null
+++ b/fs/xfs/xfs_ag.h
@@ -0,0 +1,345 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_AG_H__
+#define	__XFS_AG_H__
+
+/*
+ * Allocation group header
+ * This is divided into three structures, placed in sequential 512-byte
+ * buffers after a copy of the superblock (also in a 512-byte buffer).
+ */
+
+struct xfs_buf;
+struct xfs_mount;
+struct xfs_trans;
+
+#define	XFS_AGF_MAGIC	0x58414746	/* 'XAGF' */
+#define	XFS_AGI_MAGIC	0x58414749	/* 'XAGI' */
+#define	XFS_AGF_VERSION	1
+#define	XFS_AGI_VERSION	1
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_AGF_GOOD_VERSION)
+int xfs_agf_good_version(unsigned v);
+#define	XFS_AGF_GOOD_VERSION(v)	xfs_agf_good_version(v)
+#else
+#define XFS_AGF_GOOD_VERSION(v)		((v) == XFS_AGF_VERSION)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_AGI_GOOD_VERSION)
+int xfs_agi_good_version(unsigned v);
+#define	XFS_AGI_GOOD_VERSION(v)	xfs_agi_good_version(v)
+#else
+#define XFS_AGI_GOOD_VERSION(v)		((v) == XFS_AGI_VERSION)
+#endif
+
+/*
+ * Btree number 0 is bno, 1 is cnt.  This value gives the size of the
+ * arrays below.
+ */
+#define	XFS_BTNUM_AGF	((int)XFS_BTNUM_CNTi + 1)
+
+/*
+ * The second word of agf_levels in the first a.g. overlaps the EFS
+ * superblock's magic number.  Since the magic numbers valid for EFS
+ * are > 64k, our value cannot be confused for an EFS superblock's.
+ */
+
+typedef struct xfs_agf
+{
+	/*
+	 * Common allocation group header information
+	 */
+	__uint32_t	agf_magicnum;	/* magic number == XFS_AGF_MAGIC */
+	__uint32_t	agf_versionnum;	/* header version == XFS_AGF_VERSION */
+	xfs_agnumber_t	agf_seqno;	/* sequence # starting from 0 */
+	xfs_agblock_t	agf_length;	/* size in blocks of a.g. */
+	/*
+	 * Freespace information
+	 */
+	xfs_agblock_t	agf_roots[XFS_BTNUM_AGF];	/* root blocks */
+	__uint32_t	agf_spare0;	/* spare field */
+	__uint32_t	agf_levels[XFS_BTNUM_AGF];	/* btree levels */
+	__uint32_t	agf_spare1;	/* spare field */
+	__uint32_t	agf_flfirst;	/* first freelist block's index */
+	__uint32_t	agf_fllast;	/* last freelist block's index */
+	__uint32_t	agf_flcount;	/* count of blocks in freelist */
+	xfs_extlen_t	agf_freeblks;	/* total free blocks */
+	xfs_extlen_t	agf_longest;	/* longest free space */
+} xfs_agf_t;
+
+#define	XFS_AGF_MAGICNUM	0x00000001
+#define	XFS_AGF_VERSIONNUM	0x00000002
+#define	XFS_AGF_SEQNO		0x00000004
+#define	XFS_AGF_LENGTH		0x00000008
+#define	XFS_AGF_ROOTS		0x00000010
+#define	XFS_AGF_LEVELS		0x00000020
+#define	XFS_AGF_FLFIRST		0x00000040
+#define	XFS_AGF_FLLAST		0x00000080
+#define	XFS_AGF_FLCOUNT		0x00000100
+#define	XFS_AGF_FREEBLKS	0x00000200
+#define	XFS_AGF_LONGEST		0x00000400
+#define	XFS_AGF_NUM_BITS	11
+#define	XFS_AGF_ALL_BITS	((1 << XFS_AGF_NUM_BITS) - 1)
+
+/* disk block (xfs_daddr_t) in the AG */
+#define XFS_AGF_DADDR(mp)	((xfs_daddr_t)(1 << (mp)->m_sectbb_log))
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_AGF_BLOCK)
+xfs_agblock_t xfs_agf_block(struct xfs_mount *mp);
+#define	XFS_AGF_BLOCK(mp)	xfs_agf_block(mp)
+#else
+#define XFS_AGF_BLOCK(mp)	XFS_HDR_BLOCK(mp, XFS_AGF_DADDR(mp))
+#endif
+
+/*
+ * Size of the unlinked inode hash table in the agi.
+ */
+#define	XFS_AGI_UNLINKED_BUCKETS	64
+
+typedef struct xfs_agi
+{
+	/*
+	 * Common allocation group header information
+	 */
+	__uint32_t	agi_magicnum;	/* magic number == XFS_AGI_MAGIC */
+	__uint32_t	agi_versionnum;	/* header version == XFS_AGI_VERSION */
+	xfs_agnumber_t	agi_seqno;	/* sequence # starting from 0 */
+	xfs_agblock_t	agi_length;	/* size in blocks of a.g. */
+	/*
+	 * Inode information
+	 * Inodes are mapped by interpreting the inode number, so no
+	 * mapping data is needed here.
+	 */
+	xfs_agino_t	agi_count;	/* count of allocated inodes */
+	xfs_agblock_t	agi_root;	/* root of inode btree */
+	__uint32_t	agi_level;	/* levels in inode btree */
+	xfs_agino_t	agi_freecount;	/* number of free inodes */
+	xfs_agino_t	agi_newino;	/* new inode just allocated */
+	xfs_agino_t	agi_dirino;	/* last directory inode chunk */
+	/*
+	 * Hash table of inodes which have been unlinked but are
+	 * still being referenced.
+	 */
+	xfs_agino_t	agi_unlinked[XFS_AGI_UNLINKED_BUCKETS];
+} xfs_agi_t;
+
+#define	XFS_AGI_MAGICNUM	0x00000001
+#define	XFS_AGI_VERSIONNUM	0x00000002
+#define	XFS_AGI_SEQNO		0x00000004
+#define	XFS_AGI_LENGTH		0x00000008
+#define	XFS_AGI_COUNT		0x00000010
+#define	XFS_AGI_ROOT		0x00000020
+#define	XFS_AGI_LEVEL		0x00000040
+#define	XFS_AGI_FREECOUNT	0x00000080
+#define	XFS_AGI_NEWINO		0x00000100
+#define	XFS_AGI_DIRINO		0x00000200
+#define	XFS_AGI_UNLINKED	0x00000400
+#define	XFS_AGI_NUM_BITS	11
+#define	XFS_AGI_ALL_BITS	((1 << XFS_AGI_NUM_BITS) - 1)
+
+/* disk block (xfs_daddr_t) in the AG */
+#define XFS_AGI_DADDR(mp)	((xfs_daddr_t)(2 << (mp)->m_sectbb_log))
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_AGI_BLOCK)
+xfs_agblock_t xfs_agi_block(struct xfs_mount *mp);
+#define	XFS_AGI_BLOCK(mp)	xfs_agi_block(mp)
+#else
+#define XFS_AGI_BLOCK(mp)	XFS_HDR_BLOCK(mp, XFS_AGI_DADDR(mp))
+#endif
+
+/*
+ * The third a.g. block contains the a.g. freelist, an array
+ * of block pointers to blocks owned by the allocation btree code.
+ */
+#define XFS_AGFL_DADDR(mp)	((xfs_daddr_t)(3 << (mp)->m_sectbb_log))
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_AGFL_BLOCK)
+xfs_agblock_t xfs_agfl_block(struct xfs_mount *mp);
+#define	XFS_AGFL_BLOCK(mp)	xfs_agfl_block(mp)
+#else
+#define XFS_AGFL_BLOCK(mp)	XFS_HDR_BLOCK(mp, XFS_AGFL_DADDR(mp))
+#endif
+#define XFS_AGFL_SIZE(mp)	((mp)->m_sb.sb_sectsize / sizeof(xfs_agblock_t))
+
+typedef struct xfs_agfl {
+	xfs_agblock_t	agfl_bno[1];	/* actually XFS_AGFL_SIZE(mp) */
+} xfs_agfl_t;
+
+/*
+ * Busy block/extent entry.  Used in perag to mark blocks that have been freed
+ * but whose transactions aren't committed to disk yet.
+ */
+typedef struct xfs_perag_busy {
+	xfs_agblock_t	busy_start;
+	xfs_extlen_t	busy_length;
+	struct xfs_trans *busy_tp;	/* transaction that did the free */
+} xfs_perag_busy_t;
+
+/*
+ * Per-ag incore structure, copies of information in agf and agi,
+ * to improve the performance of allocation group selection.
+ *
+ * pick sizes which fit in allocation buckets well
+ */
+#if (BITS_PER_LONG == 32)
+#define XFS_PAGB_NUM_SLOTS	84
+#elif (BITS_PER_LONG == 64)
+#define XFS_PAGB_NUM_SLOTS	128
+#endif
+
+typedef struct xfs_perag
+{
+	char		pagf_init;	/* this agf's entry is initialized */
+	char		pagi_init;	/* this agi's entry is initialized */
+	char		pagf_metadata;	/* the agf is prefered to be metadata */
+	char		pagi_inodeok;	/* The agi is ok for inodes */
+	__uint8_t	pagf_levels[XFS_BTNUM_AGF];
+					/* # of levels in bno & cnt btree */
+	__uint32_t	pagf_flcount;	/* count of blocks in freelist */
+	xfs_extlen_t	pagf_freeblks;	/* total free blocks */
+	xfs_extlen_t	pagf_longest;	/* longest free space */
+	xfs_agino_t	pagi_freecount;	/* number of free inodes */
+#ifdef __KERNEL__
+	lock_t		pagb_lock;	/* lock for pagb_list */
+#endif
+	int		pagb_count;	/* pagb slots in use */
+	xfs_perag_busy_t *pagb_list;	/* unstable blocks */
+} xfs_perag_t;
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_AG_MAXLEVELS)
+int xfs_ag_maxlevels(struct xfs_mount *mp);
+#define	XFS_AG_MAXLEVELS(mp)		xfs_ag_maxlevels(mp)
+#else
+#define	XFS_AG_MAXLEVELS(mp)	((mp)->m_ag_maxlevels)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_MIN_FREELIST)
+int xfs_min_freelist(xfs_agf_t *a, struct xfs_mount *mp);
+#define	XFS_MIN_FREELIST(a,mp)		xfs_min_freelist(a,mp)
+#else
+#define	XFS_MIN_FREELIST(a,mp)	\
+	XFS_MIN_FREELIST_RAW(	\
+		INT_GET((a)->agf_levels[XFS_BTNUM_BNOi], ARCH_CONVERT), \
+		INT_GET((a)->agf_levels[XFS_BTNUM_CNTi], ARCH_CONVERT), mp)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_MIN_FREELIST_PAG)
+int xfs_min_freelist_pag(xfs_perag_t *pag, struct xfs_mount *mp);
+#define	XFS_MIN_FREELIST_PAG(pag,mp)	xfs_min_freelist_pag(pag,mp)
+#else
+#define	XFS_MIN_FREELIST_PAG(pag,mp)	\
+	XFS_MIN_FREELIST_RAW((uint_t)(pag)->pagf_levels[XFS_BTNUM_BNOi], \
+			     (uint_t)(pag)->pagf_levels[XFS_BTNUM_CNTi], mp)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_MIN_FREELIST_RAW)
+int xfs_min_freelist_raw(int bl, int cl, struct xfs_mount *mp);
+#define	XFS_MIN_FREELIST_RAW(bl,cl,mp)	xfs_min_freelist_raw(bl,cl,mp)
+#else
+#define	XFS_MIN_FREELIST_RAW(bl,cl,mp)	\
+	(MIN(bl + 1, XFS_AG_MAXLEVELS(mp)) + \
+	 MIN(cl + 1, XFS_AG_MAXLEVELS(mp)))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_AGB_TO_FSB)
+xfs_fsblock_t xfs_agb_to_fsb(struct xfs_mount *mp, xfs_agnumber_t agno,
+			     xfs_agblock_t agbno);
+#define XFS_AGB_TO_FSB(mp,agno,agbno)	xfs_agb_to_fsb(mp,agno,agbno)
+#else
+#define	XFS_AGB_TO_FSB(mp,agno,agbno) \
+	(((xfs_fsblock_t)(agno) << (mp)->m_sb.sb_agblklog) | (agbno))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_FSB_TO_AGNO)
+xfs_agnumber_t xfs_fsb_to_agno(struct xfs_mount *mp, xfs_fsblock_t fsbno);
+#define	XFS_FSB_TO_AGNO(mp,fsbno)	xfs_fsb_to_agno(mp,fsbno)
+#else
+#define	XFS_FSB_TO_AGNO(mp,fsbno) \
+	((xfs_agnumber_t)((fsbno) >> (mp)->m_sb.sb_agblklog))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_FSB_TO_AGBNO)
+xfs_agblock_t xfs_fsb_to_agbno(struct xfs_mount *mp, xfs_fsblock_t fsbno);
+#define	XFS_FSB_TO_AGBNO(mp,fsbno)	xfs_fsb_to_agbno(mp,fsbno)
+#else
+#define	XFS_FSB_TO_AGBNO(mp,fsbno) \
+	((xfs_agblock_t)((fsbno) & XFS_MASK32LO((mp)->m_sb.sb_agblklog)))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_AGB_TO_DADDR)
+xfs_daddr_t xfs_agb_to_daddr(struct xfs_mount *mp, xfs_agnumber_t agno,
+				xfs_agblock_t agbno);
+#define	XFS_AGB_TO_DADDR(mp,agno,agbno)	xfs_agb_to_daddr(mp,agno,agbno)
+#else
+#define	XFS_AGB_TO_DADDR(mp,agno,agbno) \
+	((xfs_daddr_t)(XFS_FSB_TO_BB(mp, \
+		(xfs_fsblock_t)(agno) * (mp)->m_sb.sb_agblocks + (agbno))))
+#endif
+/*
+ * XFS_DADDR_TO_AGNO and XFS_DADDR_TO_AGBNO moved to xfs_mount.h
+ * to avoid header file ordering change
+ */
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_AG_DADDR)
+xfs_daddr_t xfs_ag_daddr(struct xfs_mount *mp, xfs_agnumber_t agno,
+				xfs_daddr_t d);
+#define	XFS_AG_DADDR(mp,agno,d)		xfs_ag_daddr(mp,agno,d)
+#else
+#define	XFS_AG_DADDR(mp,agno,d)	(XFS_AGB_TO_DADDR(mp, agno, 0) + (d))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BUF_TO_AGF)
+xfs_agf_t *xfs_buf_to_agf(struct xfs_buf *bp);
+#define	XFS_BUF_TO_AGF(bp)		xfs_buf_to_agf(bp)
+#else
+#define	XFS_BUF_TO_AGF(bp)	((xfs_agf_t *)XFS_BUF_PTR(bp))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BUF_TO_AGI)
+xfs_agi_t *xfs_buf_to_agi(struct xfs_buf *bp);
+#define	XFS_BUF_TO_AGI(bp)		xfs_buf_to_agi(bp)
+#else
+#define	XFS_BUF_TO_AGI(bp)	((xfs_agi_t *)XFS_BUF_PTR(bp))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BUF_TO_AGFL)
+xfs_agfl_t *xfs_buf_to_agfl(struct xfs_buf *bp);
+#define	XFS_BUF_TO_AGFL(bp)		xfs_buf_to_agfl(bp)
+#else
+#define	XFS_BUF_TO_AGFL(bp)	((xfs_agfl_t *)XFS_BUF_PTR(bp))
+#endif
+
+/*
+ * For checking for bad ranges of xfs_daddr_t's, covering multiple
+ * allocation groups or a single xfs_daddr_t that's a superblock copy.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_AG_CHECK_DADDR)
+void xfs_ag_check_daddr(struct xfs_mount *mp, xfs_daddr_t d, xfs_extlen_t len);
+#define	XFS_AG_CHECK_DADDR(mp,d,len)	xfs_ag_check_daddr(mp,d,len)
+#else
+#define	XFS_AG_CHECK_DADDR(mp,d,len)	\
+	((len) == 1 ? \
+	    ASSERT((d) == XFS_SB_DADDR || \
+		   XFS_DADDR_TO_AGBNO(mp, d) != XFS_SB_DADDR) : \
+	    ASSERT(XFS_DADDR_TO_AGNO(mp, d) == \
+		   XFS_DADDR_TO_AGNO(mp, (d) + (len) - 1)))
+#endif
+
+#endif	/* __XFS_AG_H__ */
diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c
new file mode 100644
index 00000000000000..fa8799d55fb782
--- /dev/null
+++ b/fs/xfs/xfs_alloc.c
@@ -0,0 +1,2623 @@
+/*
+ * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+/*
+ * Free space allocation for XFS.
+ */
+#include "xfs.h"
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_alloc.h"
+#include "xfs_bit.h"
+#include "xfs_error.h"
+
+
+#define XFS_ABSDIFF(a,b)	(((a) <= (b)) ? ((b) - (a)) : ((a) - (b)))
+
+#define	XFSA_FIXUP_BNO_OK	1
+#define	XFSA_FIXUP_CNT_OK	2
+
+int
+xfs_alloc_search_busy(xfs_trans_t *tp,
+		    xfs_agnumber_t agno,
+		    xfs_agblock_t bno,
+		    xfs_extlen_t len);
+
+#if defined(XFS_ALLOC_TRACE)
+ktrace_t *xfs_alloc_trace_buf;
+
+#define	TRACE_ALLOC(s,a)	\
+	xfs_alloc_trace_alloc(fname, s, a, __LINE__)
+#define	TRACE_FREE(s,a,b,x,f)	\
+	xfs_alloc_trace_free(fname, s, mp, a, b, x, f, __LINE__)
+#define	TRACE_MODAGF(s,a,f)	\
+	xfs_alloc_trace_modagf(fname, s, mp, a, f, __LINE__)
+#define	TRACE_BUSY(fname,s,ag,agb,l,sl,tp)	\
+	xfs_alloc_trace_busy(fname, s, mp, ag, agb, l, sl, tp, XFS_ALLOC_KTRACE_BUSY, __LINE__)
+#define	TRACE_UNBUSY(fname,s,ag,sl,tp)	\
+	xfs_alloc_trace_busy(fname, s, mp, ag, -1, -1, sl, tp, XFS_ALLOC_KTRACE_UNBUSY, __LINE__)
+#define	TRACE_BUSYSEARCH(fname,s,ag,agb,l,sl,tp)	\
+	xfs_alloc_trace_busy(fname, s, mp, ag, agb, l, sl, tp, XFS_ALLOC_KTRACE_BUSYSEARCH, __LINE__)
+#else
+#define	TRACE_ALLOC(s,a)
+#define	TRACE_FREE(s,a,b,x,f)
+#define	TRACE_MODAGF(s,a,f)
+#define	TRACE_BUSY(s,a,ag,agb,l,sl,tp)
+#define	TRACE_UNBUSY(fname,s,ag,sl,tp)
+#define	TRACE_BUSYSEARCH(fname,s,ag,agb,l,sl,tp)
+#endif	/* XFS_ALLOC_TRACE */
+
+/*
+ * Prototypes for per-ag allocation routines
+ */
+
+STATIC int xfs_alloc_ag_vextent_exact(xfs_alloc_arg_t *);
+STATIC int xfs_alloc_ag_vextent_near(xfs_alloc_arg_t *);
+STATIC int xfs_alloc_ag_vextent_size(xfs_alloc_arg_t *);
+STATIC int xfs_alloc_ag_vextent_small(xfs_alloc_arg_t *,
+	xfs_btree_cur_t *, xfs_agblock_t *, xfs_extlen_t *, int *);
+
+/*
+ * Internal functions.
+ */
+
+/*
+ * Compute aligned version of the found extent.
+ * Takes alignment and min length into account.
+ */
+STATIC int				/* success (>= minlen) */
+xfs_alloc_compute_aligned(
+	xfs_agblock_t	foundbno,	/* starting block in found extent */
+	xfs_extlen_t	foundlen,	/* length in found extent */
+	xfs_extlen_t	alignment,	/* alignment for allocation */
+	xfs_extlen_t	minlen,		/* minimum length for allocation */
+	xfs_agblock_t	*resbno,	/* result block number */
+	xfs_extlen_t	*reslen)	/* result length */
+{
+	xfs_agblock_t	bno;
+	xfs_extlen_t	diff;
+	xfs_extlen_t	len;
+
+	if (alignment > 1 && foundlen >= minlen) {
+		bno = roundup(foundbno, alignment);
+		diff = bno - foundbno;
+		len = diff >= foundlen ? 0 : foundlen - diff;
+	} else {
+		bno = foundbno;
+		len = foundlen;
+	}
+	*resbno = bno;
+	*reslen = len;
+	return len >= minlen;
+}
+
+/*
+ * Compute best start block and diff for "near" allocations.
+ * freelen >= wantlen already checked by caller.
+ */
+STATIC xfs_extlen_t			/* difference value (absolute) */
+xfs_alloc_compute_diff(
+	xfs_agblock_t	wantbno,	/* target starting block */
+	xfs_extlen_t	wantlen,	/* target length */
+	xfs_extlen_t	alignment,	/* target alignment */
+	xfs_agblock_t	freebno,	/* freespace's starting block */
+	xfs_extlen_t	freelen,	/* freespace's length */
+	xfs_agblock_t	*newbnop)	/* result: best start block from free */
+{
+	xfs_agblock_t	freeend;	/* end of freespace extent */
+	xfs_agblock_t	newbno1;	/* return block number */
+	xfs_agblock_t	newbno2;	/* other new block number */
+	xfs_extlen_t	newlen1=0;	/* length with newbno1 */
+	xfs_extlen_t	newlen2=0;	/* length with newbno2 */
+	xfs_agblock_t	wantend;	/* end of target extent */
+
+	ASSERT(freelen >= wantlen);
+	freeend = freebno + freelen;
+	wantend = wantbno + wantlen;
+	if (freebno >= wantbno) {
+		if ((newbno1 = roundup(freebno, alignment)) >= freeend)
+			newbno1 = NULLAGBLOCK;
+	} else if (freeend >= wantend && alignment > 1) {
+		newbno1 = roundup(wantbno, alignment);
+		newbno2 = newbno1 - alignment;
+		if (newbno1 >= freeend)
+			newbno1 = NULLAGBLOCK;
+		else
+			newlen1 = XFS_EXTLEN_MIN(wantlen, freeend - newbno1);
+		if (newbno2 < freebno)
+			newbno2 = NULLAGBLOCK;
+		else
+			newlen2 = XFS_EXTLEN_MIN(wantlen, freeend - newbno2);
+		if (newbno1 != NULLAGBLOCK && newbno2 != NULLAGBLOCK) {
+			if (newlen1 < newlen2 ||
+			    (newlen1 == newlen2 &&
+			     XFS_ABSDIFF(newbno1, wantbno) >
+			     XFS_ABSDIFF(newbno2, wantbno)))
+				newbno1 = newbno2;
+		} else if (newbno2 != NULLAGBLOCK)
+			newbno1 = newbno2;
+	} else if (freeend >= wantend) {
+		newbno1 = wantbno;
+	} else if (alignment > 1) {
+		newbno1 = roundup(freeend - wantlen, alignment);
+		if (newbno1 > freeend - wantlen &&
+		    newbno1 - alignment >= freebno)
+			newbno1 -= alignment;
+		else if (newbno1 >= freeend)
+			newbno1 = NULLAGBLOCK;
+	} else
+		newbno1 = freeend - wantlen;
+	*newbnop = newbno1;
+	return newbno1 == NULLAGBLOCK ? 0 : XFS_ABSDIFF(newbno1, wantbno);
+}
+
+/*
+ * Fix up the length, based on mod and prod.
+ * len should be k * prod + mod for some k.
+ * If len is too small it is returned unchanged.
+ * If len hits maxlen it is left alone.
+ */
+STATIC void
+xfs_alloc_fix_len(
+	xfs_alloc_arg_t	*args)		/* allocation argument structure */
+{
+	xfs_extlen_t	k;
+	xfs_extlen_t	rlen;
+
+	ASSERT(args->mod < args->prod);
+	rlen = args->len;
+	ASSERT(rlen >= args->minlen);
+	ASSERT(rlen <= args->maxlen);
+	if (args->prod <= 1 || rlen < args->mod || rlen == args->maxlen ||
+	    (args->mod == 0 && rlen < args->prod))
+		return;
+	k = rlen % args->prod;
+	if (k == args->mod)
+		return;
+	if (k > args->mod) {
+		if ((int)(rlen = rlen - k - args->mod) < (int)args->minlen)
+			return;
+	} else {
+		if ((int)(rlen = rlen - args->prod - (args->mod - k)) <
+		    (int)args->minlen)
+			return;
+	}
+	ASSERT(rlen >= args->minlen);
+	ASSERT(rlen <= args->maxlen);
+	args->len = rlen;
+}
+
+/*
+ * Fix up length if there is too little space left in the a.g.
+ * Return 1 if ok, 0 if too little, should give up.
+ */
+STATIC int
+xfs_alloc_fix_minleft(
+	xfs_alloc_arg_t	*args)		/* allocation argument structure */
+{
+	xfs_agf_t	*agf;		/* a.g. freelist header */
+	int		diff;		/* free space difference */
+
+	if (args->minleft == 0)
+		return 1;
+	agf = XFS_BUF_TO_AGF(args->agbp);
+	diff = INT_GET(agf->agf_freeblks, ARCH_CONVERT)
+		+ INT_GET(agf->agf_flcount, ARCH_CONVERT)
+		- args->len - args->minleft;
+	if (diff >= 0)
+		return 1;
+	args->len += diff;		/* shrink the allocated space */
+	if (args->len >= args->minlen)
+		return 1;
+	args->agbno = NULLAGBLOCK;
+	return 0;
+}
+
+/*
+ * Update the two btrees, logically removing from freespace the extent
+ * starting at rbno, rlen blocks.  The extent is contained within the
+ * actual (current) free extent fbno for flen blocks.
+ * Flags are passed in indicating whether the cursors are set to the
+ * relevant records.
+ */
+STATIC int				/* error code */
+xfs_alloc_fixup_trees(
+	xfs_btree_cur_t	*cnt_cur,	/* cursor for by-size btree */
+	xfs_btree_cur_t	*bno_cur,	/* cursor for by-block btree */
+	xfs_agblock_t	fbno,		/* starting block of free extent */
+	xfs_extlen_t	flen,		/* length of free extent */
+	xfs_agblock_t	rbno,		/* starting block of returned extent */
+	xfs_extlen_t	rlen,		/* length of returned extent */
+	int		flags)		/* flags, XFSA_FIXUP_... */
+{
+	int		error;		/* error code */
+	int		i;		/* operation results */
+	xfs_agblock_t	nfbno1;		/* first new free startblock */
+	xfs_agblock_t	nfbno2;		/* second new free startblock */
+	xfs_extlen_t	nflen1=0;	/* first new free length */
+	xfs_extlen_t	nflen2=0;	/* second new free length */
+
+	/*
+	 * Look up the record in the by-size tree if necessary.
+	 */
+	if (flags & XFSA_FIXUP_CNT_OK) {
+#ifdef DEBUG
+		if ((error = xfs_alloc_get_rec(cnt_cur, &nfbno1, &nflen1, &i)))
+			return error;
+		XFS_WANT_CORRUPTED_RETURN(
+			i == 1 && nfbno1 == fbno && nflen1 == flen);
+#endif
+	} else {
+		if ((error = xfs_alloc_lookup_eq(cnt_cur, fbno, flen, &i)))
+			return error;
+		XFS_WANT_CORRUPTED_RETURN(i == 1);
+	}
+	/*
+	 * Look up the record in the by-block tree if necessary.
+	 */
+	if (flags & XFSA_FIXUP_BNO_OK) {
+#ifdef DEBUG
+		if ((error = xfs_alloc_get_rec(bno_cur, &nfbno1, &nflen1, &i)))
+			return error;
+		XFS_WANT_CORRUPTED_RETURN(
+			i == 1 && nfbno1 == fbno && nflen1 == flen);
+#endif
+	} else {
+		if ((error = xfs_alloc_lookup_eq(bno_cur, fbno, flen, &i)))
+			return error;
+		XFS_WANT_CORRUPTED_RETURN(i == 1);
+	}
+#ifdef DEBUG
+	{
+		xfs_alloc_block_t	*bnoblock;
+		xfs_alloc_block_t	*cntblock;
+
+		if (bno_cur->bc_nlevels == 1 &&
+		    cnt_cur->bc_nlevels == 1) {
+			bnoblock = XFS_BUF_TO_ALLOC_BLOCK(bno_cur->bc_bufs[0]);
+			cntblock = XFS_BUF_TO_ALLOC_BLOCK(cnt_cur->bc_bufs[0]);
+			XFS_WANT_CORRUPTED_RETURN(
+				INT_GET(bnoblock->bb_numrecs, ARCH_CONVERT) == INT_GET(cntblock->bb_numrecs, ARCH_CONVERT));
+		}
+	}
+#endif
+	/*
+	 * Deal with all four cases: the allocated record is contained
+	 * within the freespace record, so we can have new freespace
+	 * at either (or both) end, or no freespace remaining.
+	 */
+	if (rbno == fbno && rlen == flen)
+		nfbno1 = nfbno2 = NULLAGBLOCK;
+	else if (rbno == fbno) {
+		nfbno1 = rbno + rlen;
+		nflen1 = flen - rlen;
+		nfbno2 = NULLAGBLOCK;
+	} else if (rbno + rlen == fbno + flen) {
+		nfbno1 = fbno;
+		nflen1 = flen - rlen;
+		nfbno2 = NULLAGBLOCK;
+	} else {
+		nfbno1 = fbno;
+		nflen1 = rbno - fbno;
+		nfbno2 = rbno + rlen;
+		nflen2 = (fbno + flen) - nfbno2;
+	}
+	/*
+	 * Delete the entry from the by-size btree.
+	 */
+	if ((error = xfs_alloc_delete(cnt_cur, &i)))
+		return error;
+	XFS_WANT_CORRUPTED_RETURN(i == 1);
+	/*
+	 * Add new by-size btree entry(s).
+	 */
+	if (nfbno1 != NULLAGBLOCK) {
+		if ((error = xfs_alloc_lookup_eq(cnt_cur, nfbno1, nflen1, &i)))
+			return error;
+		XFS_WANT_CORRUPTED_RETURN(i == 0);
+		if ((error = xfs_alloc_insert(cnt_cur, &i)))
+			return error;
+		XFS_WANT_CORRUPTED_RETURN(i == 1);
+	}
+	if (nfbno2 != NULLAGBLOCK) {
+		if ((error = xfs_alloc_lookup_eq(cnt_cur, nfbno2, nflen2, &i)))
+			return error;
+		XFS_WANT_CORRUPTED_RETURN(i == 0);
+		if ((error = xfs_alloc_insert(cnt_cur, &i)))
+			return error;
+		XFS_WANT_CORRUPTED_RETURN(i == 1);
+	}
+	/*
+	 * Fix up the by-block btree entry(s).
+	 */
+	if (nfbno1 == NULLAGBLOCK) {
+		/*
+		 * No remaining freespace, just delete the by-block tree entry.
+		 */
+		if ((error = xfs_alloc_delete(bno_cur, &i)))
+			return error;
+		XFS_WANT_CORRUPTED_RETURN(i == 1);
+	} else {
+		/*
+		 * Update the by-block entry to start later|be shorter.
+		 */
+		if ((error = xfs_alloc_update(bno_cur, nfbno1, nflen1)))
+			return error;
+	}
+	if (nfbno2 != NULLAGBLOCK) {
+		/*
+		 * 2 resulting free entries, need to add one.
+		 */
+		if ((error = xfs_alloc_lookup_eq(bno_cur, nfbno2, nflen2, &i)))
+			return error;
+		XFS_WANT_CORRUPTED_RETURN(i == 0);
+		if ((error = xfs_alloc_insert(bno_cur, &i)))
+			return error;
+		XFS_WANT_CORRUPTED_RETURN(i == 1);
+	}
+	return 0;
+}
+
+/*
+ * Read in the allocation group free block array.
+ */
+STATIC int				/* error */
+xfs_alloc_read_agfl(
+	xfs_mount_t	*mp,		/* mount point structure */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_agnumber_t	agno,		/* allocation group number */
+	xfs_buf_t	**bpp)		/* buffer for the ag free block array */
+{
+	xfs_buf_t	*bp;		/* return value */
+	int		error;
+
+	ASSERT(agno != NULLAGNUMBER);
+	error = xfs_trans_read_buf(
+			mp, tp, mp->m_ddev_targp,
+			XFS_AG_DADDR(mp, agno, XFS_AGFL_DADDR(mp)),
+			XFS_FSS_TO_BB(mp, 1), 0, &bp);
+	if (error)
+		return error;
+	ASSERT(bp);
+	ASSERT(!XFS_BUF_GETERROR(bp));
+	XFS_BUF_SET_VTYPE_REF(bp, B_FS_AGFL, XFS_AGFL_REF);
+	*bpp = bp;
+	return 0;
+}
+
+#if defined(XFS_ALLOC_TRACE)
+/*
+ * Add an allocation trace entry for an alloc call.
+ */
+STATIC void
+xfs_alloc_trace_alloc(
+	char		*name,		/* function tag string */
+	char		*str,		/* additional string */
+	xfs_alloc_arg_t	*args,		/* allocation argument structure */
+	int		line)		/* source line number */
+{
+	ktrace_enter(xfs_alloc_trace_buf,
+		(void *)(__psint_t)(XFS_ALLOC_KTRACE_ALLOC | (line << 16)),
+		(void *)name,
+		(void *)str,
+		(void *)args->mp,
+		(void *)(__psunsigned_t)args->agno,
+		(void *)(__psunsigned_t)args->agbno,
+		(void *)(__psunsigned_t)args->minlen,
+		(void *)(__psunsigned_t)args->maxlen,
+		(void *)(__psunsigned_t)args->mod,
+		(void *)(__psunsigned_t)args->prod,
+		(void *)(__psunsigned_t)args->minleft,
+		(void *)(__psunsigned_t)args->total,
+		(void *)(__psunsigned_t)args->alignment,
+		(void *)(__psunsigned_t)args->len,
+		(void *)((((__psint_t)args->type) << 16) |
+			 (__psint_t)args->otype),
+		(void *)(__psint_t)((args->wasdel << 3) |
+				    (args->wasfromfl << 2) |
+				    (args->isfl << 1) |
+				    (args->userdata << 0)));
+}
+
+/*
+ * Add an allocation trace entry for a free call.
+ */
+STATIC void
+xfs_alloc_trace_free(
+	char		*name,		/* function tag string */
+	char		*str,		/* additional string */
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_agnumber_t	agno,		/* allocation group number */
+	xfs_agblock_t	agbno,		/* a.g. relative block number */
+	xfs_extlen_t	len,		/* length of extent */
+	int		isfl,		/* set if is freelist allocation/free */
+	int		line)		/* source line number */
+{
+	ktrace_enter(xfs_alloc_trace_buf,
+		(void *)(__psint_t)(XFS_ALLOC_KTRACE_FREE | (line << 16)),
+		(void *)name,
+		(void *)str,
+		(void *)mp,
+		(void *)(__psunsigned_t)agno,
+		(void *)(__psunsigned_t)agbno,
+		(void *)(__psunsigned_t)len,
+		(void *)(__psint_t)isfl,
+		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
+}
+
+/*
+ * Add an allocation trace entry for modifying an agf.
+ */
+STATIC void
+xfs_alloc_trace_modagf(
+	char		*name,		/* function tag string */
+	char		*str,		/* additional string */
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_agf_t	*agf,		/* new agf value */
+	int		flags,		/* logging flags for agf */
+	int		line)		/* source line number */
+{
+	ktrace_enter(xfs_alloc_trace_buf,
+		(void *)(__psint_t)(XFS_ALLOC_KTRACE_MODAGF | (line << 16)),
+		(void *)name,
+		(void *)str,
+		(void *)mp,
+		(void *)(__psint_t)flags,
+		(void *)(__psunsigned_t)INT_GET(agf->agf_seqno, ARCH_CONVERT),
+		(void *)(__psunsigned_t)INT_GET(agf->agf_length, ARCH_CONVERT),
+		(void *)(__psunsigned_t)INT_GET(agf->agf_roots[XFS_BTNUM_BNO],
+						ARCH_CONVERT),
+		(void *)(__psunsigned_t)INT_GET(agf->agf_roots[XFS_BTNUM_CNT],
+						ARCH_CONVERT),
+		(void *)(__psunsigned_t)INT_GET(agf->agf_levels[XFS_BTNUM_BNO],
+						ARCH_CONVERT),
+		(void *)(__psunsigned_t)INT_GET(agf->agf_levels[XFS_BTNUM_CNT],
+						ARCH_CONVERT),
+		(void *)(__psunsigned_t)INT_GET(agf->agf_flfirst, ARCH_CONVERT),
+		(void *)(__psunsigned_t)INT_GET(agf->agf_fllast, ARCH_CONVERT),
+		(void *)(__psunsigned_t)INT_GET(agf->agf_flcount, ARCH_CONVERT),
+		(void *)(__psunsigned_t)INT_GET(agf->agf_freeblks, ARCH_CONVERT),
+		(void *)(__psunsigned_t)INT_GET(agf->agf_longest, ARCH_CONVERT));
+}
+
+STATIC void
+xfs_alloc_trace_busy(
+	char		*name,		/* function tag string */
+	char		*str,		/* additional string */
+	xfs_mount_t	*mp,		/* file system mount poing */
+	xfs_agnumber_t	agno,		/* allocation group number */
+	xfs_agblock_t	agbno,		/* a.g. relative block number */
+	xfs_extlen_t	len,		/* length of extent */
+	int		slot,		/* perag Busy slot */
+	xfs_trans_t	*tp,
+	int		trtype,		/* type: add, delete, search */
+	int		line)		/* source line number */
+{
+	ktrace_enter(xfs_alloc_trace_buf,
+		(void *)(__psint_t)(trtype | (line << 16)),
+		(void *)name,
+		(void *)str,
+		(void *)mp,
+		(void *)(__psunsigned_t)agno,
+		(void *)(__psunsigned_t)agbno,
+		(void *)(__psunsigned_t)len,
+		(void *)(__psint_t)slot,
+		(void *)tp,
+		NULL, NULL, NULL, NULL, NULL, NULL, NULL);
+}
+#endif	/* XFS_ALLOC_TRACE */
+
+/*
+ * Allocation group level functions.
+ */
+
+/*
+ * Allocate a variable extent in the allocation group agno.
+ * Type and bno are used to determine where in the allocation group the
+ * extent will start.
+ * Extent's length (returned in *len) will be between minlen and maxlen,
+ * and of the form k * prod + mod unless there's nothing that large.
+ * Return the starting a.g. block, or NULLAGBLOCK if we can't do it.
+ */
+STATIC int			/* error */
+xfs_alloc_ag_vextent(
+	xfs_alloc_arg_t	*args)	/* argument structure for allocation */
+{
+	int		error=0;
+#ifdef XFS_ALLOC_TRACE
+	static char	fname[] = "xfs_alloc_ag_vextent";
+#endif
+
+	ASSERT(args->minlen > 0);
+	ASSERT(args->maxlen > 0);
+	ASSERT(args->minlen <= args->maxlen);
+	ASSERT(args->mod < args->prod);
+	ASSERT(args->alignment > 0);
+	/*
+	 * Branch to correct routine based on the type.
+	 */
+	args->wasfromfl = 0;
+	switch (args->type) {
+	case XFS_ALLOCTYPE_THIS_AG:
+		error = xfs_alloc_ag_vextent_size(args);
+		break;
+	case XFS_ALLOCTYPE_NEAR_BNO:
+		error = xfs_alloc_ag_vextent_near(args);
+		break;
+	case XFS_ALLOCTYPE_THIS_BNO:
+		error = xfs_alloc_ag_vextent_exact(args);
+		break;
+	default:
+		ASSERT(0);
+		/* NOTREACHED */
+	}
+	if (error)
+		return error;
+	/*
+	 * If the allocation worked, need to change the agf structure
+	 * (and log it), and the superblock.
+	 */
+	if (args->agbno != NULLAGBLOCK) {
+		xfs_agf_t	*agf;	/* allocation group freelist header */
+#ifdef XFS_ALLOC_TRACE
+		xfs_mount_t	*mp = args->mp;
+#endif
+		long		slen = (long)args->len;
+
+		ASSERT(args->len >= args->minlen && args->len <= args->maxlen);
+		ASSERT(!(args->wasfromfl) || !args->isfl);
+		ASSERT(args->agbno % args->alignment == 0);
+		if (!(args->wasfromfl)) {
+
+			agf = XFS_BUF_TO_AGF(args->agbp);
+			INT_MOD(agf->agf_freeblks, ARCH_CONVERT, -(args->len));
+			xfs_trans_agblocks_delta(args->tp,
+						 -((long)(args->len)));
+			args->pag->pagf_freeblks -= args->len;
+			ASSERT(INT_GET(agf->agf_freeblks, ARCH_CONVERT)
+				<= INT_GET(agf->agf_length, ARCH_CONVERT));
+			TRACE_MODAGF(NULL, agf, XFS_AGF_FREEBLKS);
+			xfs_alloc_log_agf(args->tp, args->agbp,
+						XFS_AGF_FREEBLKS);
+			/* search the busylist for these blocks */
+			xfs_alloc_search_busy(args->tp, args->agno,
+					args->agbno, args->len);
+		}
+		if (!args->isfl)
+			xfs_trans_mod_sb(args->tp,
+				args->wasdel ? XFS_TRANS_SB_RES_FDBLOCKS :
+					XFS_TRANS_SB_FDBLOCKS, -slen);
+		XFS_STATS_INC(xs_allocx);
+		XFS_STATS_ADD(xs_allocb, args->len);
+	}
+	return 0;
+}
+
+/*
+ * Allocate a variable extent at exactly agno/bno.
+ * Extent's length (returned in *len) will be between minlen and maxlen,
+ * and of the form k * prod + mod unless there's nothing that large.
+ * Return the starting a.g. block (bno), or NULLAGBLOCK if we can't do it.
+ */
+STATIC int			/* error */
+xfs_alloc_ag_vextent_exact(
+	xfs_alloc_arg_t	*args)	/* allocation argument structure */
+{
+	xfs_btree_cur_t	*bno_cur;/* by block-number btree cursor */
+	xfs_btree_cur_t	*cnt_cur;/* by count btree cursor */
+	xfs_agblock_t	end;	/* end of allocated extent */
+	int		error;
+	xfs_agblock_t	fbno;	/* start block of found extent */
+	xfs_agblock_t	fend;	/* end block of found extent */
+	xfs_extlen_t	flen;	/* length of found extent */
+#ifdef XFS_ALLOC_TRACE
+	static char	fname[] = "xfs_alloc_ag_vextent_exact";
+#endif
+	int		i;	/* success/failure of operation */
+	xfs_agblock_t	maxend;	/* end of maximal extent */
+	xfs_agblock_t	minend;	/* end of minimal extent */
+	xfs_extlen_t	rlen;	/* length of returned extent */
+
+	ASSERT(args->alignment == 1);
+	/*
+	 * Allocate/initialize a cursor for the by-number freespace btree.
+	 */
+	bno_cur = xfs_btree_init_cursor(args->mp, args->tp, args->agbp,
+		args->agno, XFS_BTNUM_BNO, NULL, 0);
+	/*
+	 * Lookup bno and minlen in the btree (minlen is irrelevant, really).
+	 * Look for the closest free block <= bno, it must contain bno
+	 * if any free block does.
+	 */
+	if ((error = xfs_alloc_lookup_le(bno_cur, args->agbno, args->minlen, &i)))
+		goto error0;
+	if (!i) {
+		/*
+		 * Didn't find it, return null.
+		 */
+		xfs_btree_del_cursor(bno_cur, XFS_BTREE_NOERROR);
+		args->agbno = NULLAGBLOCK;
+		return 0;
+	}
+	/*
+	 * Grab the freespace record.
+	 */
+	if ((error = xfs_alloc_get_rec(bno_cur, &fbno, &flen, &i)))
+		goto error0;
+	XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+	ASSERT(fbno <= args->agbno);
+	minend = args->agbno + args->minlen;
+	maxend = args->agbno + args->maxlen;
+	fend = fbno + flen;
+	/*
+	 * Give up if the freespace isn't long enough for the minimum request.
+	 */
+	if (fend < minend) {
+		xfs_btree_del_cursor(bno_cur, XFS_BTREE_NOERROR);
+		args->agbno = NULLAGBLOCK;
+		return 0;
+	}
+	/*
+	 * End of extent will be smaller of the freespace end and the
+	 * maximal requested end.
+	 */
+	end = XFS_AGBLOCK_MIN(fend, maxend);
+	/*
+	 * Fix the length according to mod and prod if given.
+	 */
+	args->len = end - args->agbno;
+	xfs_alloc_fix_len(args);
+	if (!xfs_alloc_fix_minleft(args)) {
+		xfs_btree_del_cursor(bno_cur, XFS_BTREE_NOERROR);
+		return 0;
+	}
+	rlen = args->len;
+	ASSERT(args->agbno + rlen <= fend);
+	end = args->agbno + rlen;
+	/*
+	 * We are allocating agbno for rlen [agbno .. end]
+	 * Allocate/initialize a cursor for the by-size btree.
+	 */
+	cnt_cur = xfs_btree_init_cursor(args->mp, args->tp, args->agbp,
+		args->agno, XFS_BTNUM_CNT, NULL, 0);
+	ASSERT(args->agbno + args->len <=
+		INT_GET(XFS_BUF_TO_AGF(args->agbp)->agf_length,
+			ARCH_CONVERT));
+	if ((error = xfs_alloc_fixup_trees(cnt_cur, bno_cur, fbno, flen,
+			args->agbno, args->len, XFSA_FIXUP_BNO_OK))) {
+		xfs_btree_del_cursor(cnt_cur, XFS_BTREE_ERROR);
+		goto error0;
+	}
+	xfs_btree_del_cursor(bno_cur, XFS_BTREE_NOERROR);
+	xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
+	TRACE_ALLOC("normal", args);
+	args->wasfromfl = 0;
+	return 0;
+
+error0:
+	xfs_btree_del_cursor(bno_cur, XFS_BTREE_ERROR);
+	TRACE_ALLOC("error", args);
+	return error;
+}
+
+/*
+ * Allocate a variable extent near bno in the allocation group agno.
+ * Extent's length (returned in len) will be between minlen and maxlen,
+ * and of the form k * prod + mod unless there's nothing that large.
+ * Return the starting a.g. block, or NULLAGBLOCK if we can't do it.
+ */
+STATIC int				/* error */
+xfs_alloc_ag_vextent_near(
+	xfs_alloc_arg_t	*args)		/* allocation argument structure */
+{
+	xfs_btree_cur_t	*bno_cur_gt;	/* cursor for bno btree, right side */
+	xfs_btree_cur_t	*bno_cur_lt;	/* cursor for bno btree, left side */
+	xfs_btree_cur_t	*cnt_cur;	/* cursor for count btree */
+#ifdef XFS_ALLOC_TRACE
+	static char	fname[] = "xfs_alloc_ag_vextent_near";
+#endif
+	xfs_agblock_t	gtbno;		/* start bno of right side entry */
+	xfs_agblock_t	gtbnoa;		/* aligned ... */
+	xfs_extlen_t	gtdiff;		/* difference to right side entry */
+	xfs_extlen_t	gtlen;		/* length of right side entry */
+	xfs_extlen_t	gtlena;		/* aligned ... */
+	xfs_agblock_t	gtnew;		/* useful start bno of right side */
+	int		error;		/* error code */
+	int		i;		/* result code, temporary */
+	int		j;		/* result code, temporary */
+	xfs_agblock_t	ltbno;		/* start bno of left side entry */
+	xfs_agblock_t	ltbnoa;		/* aligned ... */
+	xfs_extlen_t	ltdiff;		/* difference to left side entry */
+	/*REFERENCED*/
+	xfs_agblock_t	ltend;		/* end bno of left side entry */
+	xfs_extlen_t	ltlen;		/* length of left side entry */
+	xfs_extlen_t	ltlena;		/* aligned ... */
+	xfs_agblock_t	ltnew;		/* useful start bno of left side */
+	xfs_extlen_t	rlen;		/* length of returned extent */
+#if defined(DEBUG) && defined(__KERNEL__)
+	/*
+	 * Randomly don't execute the first algorithm.
+	 */
+	int		dofirst;	/* set to do first algorithm */
+
+	dofirst = random() & 1;
+#endif
+	/*
+	 * Get a cursor for the by-size btree.
+	 */
+	cnt_cur = xfs_btree_init_cursor(args->mp, args->tp, args->agbp,
+		args->agno, XFS_BTNUM_CNT, NULL, 0);
+	ltlen = 0;
+	bno_cur_lt = bno_cur_gt = NULL;
+	/*
+	 * See if there are any free extents as big as maxlen.
+	 */
+	if ((error = xfs_alloc_lookup_ge(cnt_cur, 0, args->maxlen, &i)))
+		goto error0;
+	/*
+	 * If none, then pick up the last entry in the tree unless the
+	 * tree is empty.
+	 */
+	if (!i) {
+		if ((error = xfs_alloc_ag_vextent_small(args, cnt_cur, &ltbno,
+				&ltlen, &i)))
+			goto error0;
+		if (i == 0 || ltlen == 0) {
+			xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
+			return 0;
+		}
+		ASSERT(i == 1);
+	}
+	args->wasfromfl = 0;
+	/*
+	 * First algorithm.
+	 * If the requested extent is large wrt the freespaces available
+	 * in this a.g., then the cursor will be pointing to a btree entry
+	 * near the right edge of the tree.  If it's in the last btree leaf
+	 * block, then we just examine all the entries in that block
+	 * that are big enough, and pick the best one.
+	 * This is written as a while loop so we can break out of it,
+	 * but we never loop back to the top.
+	 */
+	while (xfs_btree_islastblock(cnt_cur, 0)) {
+		xfs_extlen_t	bdiff;
+		int		besti=0;
+		xfs_extlen_t	blen=0;
+		xfs_agblock_t	bnew=0;
+
+#if defined(DEBUG) && defined(__KERNEL__)
+		if (!dofirst)
+			break;
+#endif
+		/*
+		 * Start from the entry that lookup found, sequence through
+		 * all larger free blocks.  If we're actually pointing at a
+		 * record smaller than maxlen, go to the start of this block,
+		 * and skip all those smaller than minlen.
+		 */
+		if (ltlen || args->alignment > 1) {
+			cnt_cur->bc_ptrs[0] = 1;
+			do {
+				if ((error = xfs_alloc_get_rec(cnt_cur, &ltbno,
+						&ltlen, &i)))
+					goto error0;
+				XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+				if (ltlen >= args->minlen)
+					break;
+				if ((error = xfs_alloc_increment(cnt_cur, 0, &i)))
+					goto error0;
+			} while (i);
+			ASSERT(ltlen >= args->minlen);
+			if (!i)
+				break;
+		}
+		i = cnt_cur->bc_ptrs[0];
+		for (j = 1, blen = 0, bdiff = 0;
+		     !error && j && (blen < args->maxlen || bdiff > 0);
+		     error = xfs_alloc_increment(cnt_cur, 0, &j)) {
+			/*
+			 * For each entry, decide if it's better than
+			 * the previous best entry.
+			 */
+			if ((error = xfs_alloc_get_rec(cnt_cur, &ltbno, &ltlen, &i)))
+				goto error0;
+			XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+			if (!xfs_alloc_compute_aligned(ltbno, ltlen,
+					args->alignment, args->minlen,
+					&ltbnoa, &ltlena))
+				continue;
+			args->len = XFS_EXTLEN_MIN(ltlena, args->maxlen);
+			xfs_alloc_fix_len(args);
+			ASSERT(args->len >= args->minlen);
+			if (args->len < blen)
+				continue;
+			ltdiff = xfs_alloc_compute_diff(args->agbno, args->len,
+				args->alignment, ltbno, ltlen, &ltnew);
+			if (ltnew != NULLAGBLOCK &&
+			    (args->len > blen || ltdiff < bdiff)) {
+				bdiff = ltdiff;
+				bnew = ltnew;
+				blen = args->len;
+				besti = cnt_cur->bc_ptrs[0];
+			}
+		}
+		/*
+		 * It didn't work.  We COULD be in a case where
+		 * there's a good record somewhere, so try again.
+		 */
+		if (blen == 0)
+			break;
+		/*
+		 * Point at the best entry, and retrieve it again.
+		 */
+		cnt_cur->bc_ptrs[0] = besti;
+		if ((error = xfs_alloc_get_rec(cnt_cur, &ltbno, &ltlen, &i)))
+			goto error0;
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		ltend = ltbno + ltlen;
+		ASSERT(ltend <= INT_GET(XFS_BUF_TO_AGF(args->agbp)->agf_length,
+				ARCH_CONVERT));
+		args->len = blen;
+		if (!xfs_alloc_fix_minleft(args)) {
+			xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
+			TRACE_ALLOC("nominleft", args);
+			return 0;
+		}
+		blen = args->len;
+		/*
+		 * We are allocating starting at bnew for blen blocks.
+		 */
+		args->agbno = bnew;
+		ASSERT(bnew >= ltbno);
+		ASSERT(bnew + blen <= ltend);
+		/*
+		 * Set up a cursor for the by-bno tree.
+		 */
+		bno_cur_lt = xfs_btree_init_cursor(args->mp, args->tp,
+			args->agbp, args->agno, XFS_BTNUM_BNO, NULL, 0);
+		/*
+		 * Fix up the btree entries.
+		 */
+		if ((error = xfs_alloc_fixup_trees(cnt_cur, bno_cur_lt, ltbno,
+				ltlen, bnew, blen, XFSA_FIXUP_CNT_OK)))
+			goto error0;
+		xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
+		xfs_btree_del_cursor(bno_cur_lt, XFS_BTREE_NOERROR);
+		TRACE_ALLOC("first", args);
+		return 0;
+	}
+	/*
+	 * Second algorithm.
+	 * Search in the by-bno tree to the left and to the right
+	 * simultaneously, until in each case we find a space big enough,
+	 * or run into the edge of the tree.  When we run into the edge,
+	 * we deallocate that cursor.
+	 * If both searches succeed, we compare the two spaces and pick
+	 * the better one.
+	 * With alignment, it's possible for both to fail; the upper
+	 * level algorithm that picks allocation groups for allocations
+	 * is not supposed to do this.
+	 */
+	/*
+	 * Allocate and initialize the cursor for the leftward search.
+	 */
+	bno_cur_lt = xfs_btree_init_cursor(args->mp, args->tp, args->agbp,
+		args->agno, XFS_BTNUM_BNO, NULL, 0);
+	/*
+	 * Lookup <= bno to find the leftward search's starting point.
+	 */
+	if ((error = xfs_alloc_lookup_le(bno_cur_lt, args->agbno, args->maxlen, &i)))
+		goto error0;
+	if (!i) {
+		/*
+		 * Didn't find anything; use this cursor for the rightward
+		 * search.
+		 */
+		bno_cur_gt = bno_cur_lt;
+		bno_cur_lt = NULL;
+	}
+	/*
+	 * Found something.  Duplicate the cursor for the rightward search.
+	 */
+	else if ((error = xfs_btree_dup_cursor(bno_cur_lt, &bno_cur_gt)))
+		goto error0;
+	/*
+	 * Increment the cursor, so we will point at the entry just right
+	 * of the leftward entry if any, or to the leftmost entry.
+	 */
+	if ((error = xfs_alloc_increment(bno_cur_gt, 0, &i)))
+		goto error0;
+	if (!i) {
+		/*
+		 * It failed, there are no rightward entries.
+		 */
+		xfs_btree_del_cursor(bno_cur_gt, XFS_BTREE_NOERROR);
+		bno_cur_gt = NULL;
+	}
+	/*
+	 * Loop going left with the leftward cursor, right with the
+	 * rightward cursor, until either both directions give up or
+	 * we find an entry at least as big as minlen.
+	 */
+	do {
+		if (bno_cur_lt) {
+			if ((error = xfs_alloc_get_rec(bno_cur_lt, &ltbno, &ltlen, &i)))
+				goto error0;
+			XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+			if (xfs_alloc_compute_aligned(ltbno, ltlen,
+					args->alignment, args->minlen,
+					&ltbnoa, &ltlena))
+				break;
+			if ((error = xfs_alloc_decrement(bno_cur_lt, 0, &i)))
+				goto error0;
+			if (!i) {
+				xfs_btree_del_cursor(bno_cur_lt,
+						     XFS_BTREE_NOERROR);
+				bno_cur_lt = NULL;
+			}
+		}
+		if (bno_cur_gt) {
+			if ((error = xfs_alloc_get_rec(bno_cur_gt, &gtbno, &gtlen, &i)))
+				goto error0;
+			XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+			if (xfs_alloc_compute_aligned(gtbno, gtlen,
+					args->alignment, args->minlen,
+					&gtbnoa, &gtlena))
+				break;
+			if ((error = xfs_alloc_increment(bno_cur_gt, 0, &i)))
+				goto error0;
+			if (!i) {
+				xfs_btree_del_cursor(bno_cur_gt,
+						     XFS_BTREE_NOERROR);
+				bno_cur_gt = NULL;
+			}
+		}
+	} while (bno_cur_lt || bno_cur_gt);
+	/*
+	 * Got both cursors still active, need to find better entry.
+	 */
+	if (bno_cur_lt && bno_cur_gt) {
+		/*
+		 * Left side is long enough, look for a right side entry.
+		 */
+		if (ltlena >= args->minlen) {
+			/*
+			 * Fix up the length.
+			 */
+			args->len = XFS_EXTLEN_MIN(ltlena, args->maxlen);
+			xfs_alloc_fix_len(args);
+			rlen = args->len;
+			ltdiff = xfs_alloc_compute_diff(args->agbno, rlen,
+				args->alignment, ltbno, ltlen, &ltnew);
+			/*
+			 * Not perfect.
+			 */
+			if (ltdiff) {
+				/*
+				 * Look until we find a better one, run out of
+				 * space, or run off the end.
+				 */
+				while (bno_cur_lt && bno_cur_gt) {
+					if ((error = xfs_alloc_get_rec(
+							bno_cur_gt, &gtbno,
+							&gtlen, &i)))
+						goto error0;
+					XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+					xfs_alloc_compute_aligned(gtbno, gtlen,
+						args->alignment, args->minlen,
+						&gtbnoa, &gtlena);
+					/*
+					 * The left one is clearly better.
+					 */
+					if (gtbnoa >= args->agbno + ltdiff) {
+						xfs_btree_del_cursor(
+							bno_cur_gt,
+							XFS_BTREE_NOERROR);
+						bno_cur_gt = NULL;
+						break;
+					}
+					/*
+					 * If we reach a big enough entry,
+					 * compare the two and pick the best.
+					 */
+					if (gtlena >= args->minlen) {
+						args->len =
+							XFS_EXTLEN_MIN(gtlena,
+								args->maxlen);
+						xfs_alloc_fix_len(args);
+						rlen = args->len;
+						gtdiff = xfs_alloc_compute_diff(
+							args->agbno, rlen,
+							args->alignment,
+							gtbno, gtlen, &gtnew);
+						/*
+						 * Right side is better.
+						 */
+						if (gtdiff < ltdiff) {
+							xfs_btree_del_cursor(
+								bno_cur_lt,
+								XFS_BTREE_NOERROR);
+							bno_cur_lt = NULL;
+						}
+						/*
+						 * Left side is better.
+						 */
+						else {
+							xfs_btree_del_cursor(
+								bno_cur_gt,
+								XFS_BTREE_NOERROR);
+							bno_cur_gt = NULL;
+						}
+						break;
+					}
+					/*
+					 * Fell off the right end.
+					 */
+					if ((error = xfs_alloc_increment(
+							bno_cur_gt, 0, &i)))
+						goto error0;
+					if (!i) {
+						xfs_btree_del_cursor(
+							bno_cur_gt,
+							XFS_BTREE_NOERROR);
+						bno_cur_gt = NULL;
+						break;
+					}
+				}
+			}
+			/*
+			 * The left side is perfect, trash the right side.
+			 */
+			else {
+				xfs_btree_del_cursor(bno_cur_gt,
+						     XFS_BTREE_NOERROR);
+				bno_cur_gt = NULL;
+			}
+		}
+		/*
+		 * It's the right side that was found first, look left.
+		 */
+		else {
+			/*
+			 * Fix up the length.
+			 */
+			args->len = XFS_EXTLEN_MIN(gtlena, args->maxlen);
+			xfs_alloc_fix_len(args);
+			rlen = args->len;
+			gtdiff = xfs_alloc_compute_diff(args->agbno, rlen,
+				args->alignment, gtbno, gtlen, &gtnew);
+			/*
+			 * Right side entry isn't perfect.
+			 */
+			if (gtdiff) {
+				/*
+				 * Look until we find a better one, run out of
+				 * space, or run off the end.
+				 */
+				while (bno_cur_lt && bno_cur_gt) {
+					if ((error = xfs_alloc_get_rec(
+							bno_cur_lt, &ltbno,
+							&ltlen, &i)))
+						goto error0;
+					XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+					xfs_alloc_compute_aligned(ltbno, ltlen,
+						args->alignment, args->minlen,
+						&ltbnoa, &ltlena);
+					/*
+					 * The right one is clearly better.
+					 */
+					if (ltbnoa <= args->agbno - gtdiff) {
+						xfs_btree_del_cursor(
+							bno_cur_lt,
+							XFS_BTREE_NOERROR);
+						bno_cur_lt = NULL;
+						break;
+					}
+					/*
+					 * If we reach a big enough entry,
+					 * compare the two and pick the best.
+					 */
+					if (ltlena >= args->minlen) {
+						args->len = XFS_EXTLEN_MIN(
+							ltlena, args->maxlen);
+						xfs_alloc_fix_len(args);
+						rlen = args->len;
+						ltdiff = xfs_alloc_compute_diff(
+							args->agbno, rlen,
+							args->alignment,
+							ltbno, ltlen, &ltnew);
+						/*
+						 * Left side is better.
+						 */
+						if (ltdiff < gtdiff) {
+							xfs_btree_del_cursor(
+								bno_cur_gt,
+								XFS_BTREE_NOERROR);
+							bno_cur_gt = NULL;
+						}
+						/*
+						 * Right side is better.
+						 */
+						else {
+							xfs_btree_del_cursor(
+								bno_cur_lt,
+								XFS_BTREE_NOERROR);
+							bno_cur_lt = NULL;
+						}
+						break;
+					}
+					/*
+					 * Fell off the left end.
+					 */
+					if ((error = xfs_alloc_decrement(
+							bno_cur_lt, 0, &i)))
+						goto error0;
+					if (!i) {
+						xfs_btree_del_cursor(bno_cur_lt,
+							XFS_BTREE_NOERROR);
+						bno_cur_lt = NULL;
+						break;
+					}
+				}
+			}
+			/*
+			 * The right side is perfect, trash the left side.
+			 */
+			else {
+				xfs_btree_del_cursor(bno_cur_lt,
+					XFS_BTREE_NOERROR);
+				bno_cur_lt = NULL;
+			}
+		}
+	}
+	/*
+	 * If we couldn't get anything, give up.
+	 */
+	if (bno_cur_lt == NULL && bno_cur_gt == NULL) {
+		TRACE_ALLOC("neither", args);
+		args->agbno = NULLAGBLOCK;
+		return 0;
+	}
+	/*
+	 * At this point we have selected a freespace entry, either to the
+	 * left or to the right.  If it's on the right, copy all the
+	 * useful variables to the "left" set so we only have one
+	 * copy of this code.
+	 */
+	if (bno_cur_gt) {
+		bno_cur_lt = bno_cur_gt;
+		bno_cur_gt = NULL;
+		ltbno = gtbno;
+		ltbnoa = gtbnoa;
+		ltlen = gtlen;
+		ltlena = gtlena;
+		j = 1;
+	} else
+		j = 0;
+	/*
+	 * Fix up the length and compute the useful address.
+	 */
+	ltend = ltbno + ltlen;
+	args->len = XFS_EXTLEN_MIN(ltlena, args->maxlen);
+	xfs_alloc_fix_len(args);
+	if (!xfs_alloc_fix_minleft(args)) {
+		TRACE_ALLOC("nominleft", args);
+		xfs_btree_del_cursor(bno_cur_lt, XFS_BTREE_NOERROR);
+		xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
+		return 0;
+	}
+	rlen = args->len;
+	(void)xfs_alloc_compute_diff(args->agbno, rlen, args->alignment, ltbno,
+		ltlen, &ltnew);
+	ASSERT(ltnew >= ltbno);
+	ASSERT(ltnew + rlen <= ltend);
+	ASSERT(ltnew + rlen <= INT_GET(XFS_BUF_TO_AGF(args->agbp)->agf_length,
+		ARCH_CONVERT));
+	args->agbno = ltnew;
+	if ((error = xfs_alloc_fixup_trees(cnt_cur, bno_cur_lt, ltbno, ltlen,
+			ltnew, rlen, XFSA_FIXUP_BNO_OK)))
+		goto error0;
+	TRACE_ALLOC(j ? "gt" : "lt", args);
+	xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
+	xfs_btree_del_cursor(bno_cur_lt, XFS_BTREE_NOERROR);
+	return 0;
+
+ error0:
+	TRACE_ALLOC("error", args);
+	if (cnt_cur != NULL)
+		xfs_btree_del_cursor(cnt_cur, XFS_BTREE_ERROR);
+	if (bno_cur_lt != NULL)
+		xfs_btree_del_cursor(bno_cur_lt, XFS_BTREE_ERROR);
+	if (bno_cur_gt != NULL)
+		xfs_btree_del_cursor(bno_cur_gt, XFS_BTREE_ERROR);
+	return error;
+}
+
+/*
+ * Allocate a variable extent anywhere in the allocation group agno.
+ * Extent's length (returned in len) will be between minlen and maxlen,
+ * and of the form k * prod + mod unless there's nothing that large.
+ * Return the starting a.g. block, or NULLAGBLOCK if we can't do it.
+ */
+STATIC int				/* error */
+xfs_alloc_ag_vextent_size(
+	xfs_alloc_arg_t	*args)		/* allocation argument structure */
+{
+	xfs_btree_cur_t	*bno_cur;	/* cursor for bno btree */
+	xfs_btree_cur_t	*cnt_cur;	/* cursor for cnt btree */
+	int		error;		/* error result */
+	xfs_agblock_t	fbno;		/* start of found freespace */
+	xfs_extlen_t	flen;		/* length of found freespace */
+#ifdef XFS_ALLOC_TRACE
+	static char	fname[] = "xfs_alloc_ag_vextent_size";
+#endif
+	int		i;		/* temp status variable */
+	xfs_agblock_t	rbno;		/* returned block number */
+	xfs_extlen_t	rlen;		/* length of returned extent */
+
+	/*
+	 * Allocate and initialize a cursor for the by-size btree.
+	 */
+	cnt_cur = xfs_btree_init_cursor(args->mp, args->tp, args->agbp,
+		args->agno, XFS_BTNUM_CNT, NULL, 0);
+	bno_cur = NULL;
+	/*
+	 * Look for an entry >= maxlen+alignment-1 blocks.
+	 */
+	if ((error = xfs_alloc_lookup_ge(cnt_cur, 0,
+			args->maxlen + args->alignment - 1, &i)))
+		goto error0;
+	/*
+	 * If none, then pick up the last entry in the tree unless the
+	 * tree is empty.
+	 */
+	if (!i) {
+		if ((error = xfs_alloc_ag_vextent_small(args, cnt_cur, &fbno,
+				&flen, &i)))
+			goto error0;
+		if (i == 0 || flen == 0) {
+			xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
+			TRACE_ALLOC("noentry", args);
+			return 0;
+		}
+		ASSERT(i == 1);
+	}
+	/*
+	 * There's a freespace as big as maxlen+alignment-1, get it.
+	 */
+	else {
+		if ((error = xfs_alloc_get_rec(cnt_cur, &fbno, &flen, &i)))
+			goto error0;
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+	}
+	/*
+	 * In the first case above, we got the last entry in the
+	 * by-size btree.  Now we check to see if the space hits maxlen
+	 * once aligned; if not, we search left for something better.
+	 * This can't happen in the second case above.
+	 */
+	xfs_alloc_compute_aligned(fbno, flen, args->alignment, args->minlen,
+		&rbno, &rlen);
+	rlen = XFS_EXTLEN_MIN(args->maxlen, rlen);
+	XFS_WANT_CORRUPTED_GOTO(rlen == 0 ||
+			(rlen <= flen && rbno + rlen <= fbno + flen), error0);
+	if (rlen < args->maxlen) {
+		xfs_agblock_t	bestfbno;
+		xfs_extlen_t	bestflen;
+		xfs_agblock_t	bestrbno;
+		xfs_extlen_t	bestrlen;
+
+		bestrlen = rlen;
+		bestrbno = rbno;
+		bestflen = flen;
+		bestfbno = fbno;
+		for (;;) {
+			if ((error = xfs_alloc_decrement(cnt_cur, 0, &i)))
+				goto error0;
+			if (i == 0)
+				break;
+			if ((error = xfs_alloc_get_rec(cnt_cur, &fbno, &flen,
+					&i)))
+				goto error0;
+			XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+			if (flen < bestrlen)
+				break;
+			xfs_alloc_compute_aligned(fbno, flen, args->alignment,
+				args->minlen, &rbno, &rlen);
+			rlen = XFS_EXTLEN_MIN(args->maxlen, rlen);
+			XFS_WANT_CORRUPTED_GOTO(rlen == 0 ||
+				(rlen <= flen && rbno + rlen <= fbno + flen),
+				error0);
+			if (rlen > bestrlen) {
+				bestrlen = rlen;
+				bestrbno = rbno;
+				bestflen = flen;
+				bestfbno = fbno;
+				if (rlen == args->maxlen)
+					break;
+			}
+		}
+		if ((error = xfs_alloc_lookup_eq(cnt_cur, bestfbno, bestflen,
+				&i)))
+			goto error0;
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		rlen = bestrlen;
+		rbno = bestrbno;
+		flen = bestflen;
+		fbno = bestfbno;
+	}
+	args->wasfromfl = 0;
+	/*
+	 * Fix up the length.
+	 */
+	args->len = rlen;
+	xfs_alloc_fix_len(args);
+	if (rlen < args->minlen || !xfs_alloc_fix_minleft(args)) {
+		xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
+		TRACE_ALLOC("nominleft", args);
+		args->agbno = NULLAGBLOCK;
+		return 0;
+	}
+	rlen = args->len;
+	XFS_WANT_CORRUPTED_GOTO(rlen <= flen, error0);
+	/*
+	 * Allocate and initialize a cursor for the by-block tree.
+	 */
+	bno_cur = xfs_btree_init_cursor(args->mp, args->tp, args->agbp,
+		args->agno, XFS_BTNUM_BNO, NULL, 0);
+	if ((error = xfs_alloc_fixup_trees(cnt_cur, bno_cur, fbno, flen,
+			rbno, rlen, XFSA_FIXUP_CNT_OK)))
+		goto error0;
+	xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
+	xfs_btree_del_cursor(bno_cur, XFS_BTREE_NOERROR);
+	cnt_cur = bno_cur = NULL;
+	args->len = rlen;
+	args->agbno = rbno;
+	XFS_WANT_CORRUPTED_GOTO(
+		args->agbno + args->len <=
+			INT_GET(XFS_BUF_TO_AGF(args->agbp)->agf_length,
+			ARCH_CONVERT),
+		error0);
+	TRACE_ALLOC("normal", args);
+	return 0;
+
+error0:
+	TRACE_ALLOC("error", args);
+	if (cnt_cur)
+		xfs_btree_del_cursor(cnt_cur, XFS_BTREE_ERROR);
+	if (bno_cur)
+		xfs_btree_del_cursor(bno_cur, XFS_BTREE_ERROR);
+	return error;
+}
+
+/*
+ * Deal with the case where only small freespaces remain.
+ * Either return the contents of the last freespace record,
+ * or allocate space from the freelist if there is nothing in the tree.
+ */
+STATIC int			/* error */
+xfs_alloc_ag_vextent_small(
+	xfs_alloc_arg_t	*args,	/* allocation argument structure */
+	xfs_btree_cur_t	*ccur,	/* by-size cursor */
+	xfs_agblock_t	*fbnop,	/* result block number */
+	xfs_extlen_t	*flenp,	/* result length */
+	int		*stat)	/* status: 0-freelist, 1-normal/none */
+{
+	int		error;
+	xfs_agblock_t	fbno;
+	xfs_extlen_t	flen;
+#ifdef XFS_ALLOC_TRACE
+	static char	fname[] = "xfs_alloc_ag_vextent_small";
+#endif
+	int		i;
+
+	if ((error = xfs_alloc_decrement(ccur, 0, &i)))
+		goto error0;
+	if (i) {
+		if ((error = xfs_alloc_get_rec(ccur, &fbno, &flen, &i)))
+			goto error0;
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+	}
+	/*
+	 * Nothing in the btree, try the freelist.  Make sure
+	 * to respect minleft even when pulling from the
+	 * freelist.
+	 */
+	else if (args->minlen == 1 && args->alignment == 1 && !args->isfl &&
+		 (INT_GET(XFS_BUF_TO_AGF(args->agbp)->agf_flcount,
+			ARCH_CONVERT) > args->minleft)) {
+		if ((error = xfs_alloc_get_freelist(args->tp, args->agbp, &fbno)))
+			goto error0;
+		if (fbno != NULLAGBLOCK) {
+			if (args->userdata) {
+				xfs_buf_t	*bp;
+
+				bp = xfs_btree_get_bufs(args->mp, args->tp,
+					args->agno, fbno, 0);
+				xfs_trans_binval(args->tp, bp);
+			}
+			args->len = 1;
+			args->agbno = fbno;
+			XFS_WANT_CORRUPTED_GOTO(
+				args->agbno + args->len <=
+				INT_GET(XFS_BUF_TO_AGF(args->agbp)->agf_length,
+					ARCH_CONVERT),
+				error0);
+			args->wasfromfl = 1;
+			TRACE_ALLOC("freelist", args);
+			*stat = 0;
+			return 0;
+		}
+		/*
+		 * Nothing in the freelist.
+		 */
+		else
+			flen = 0;
+	}
+	/*
+	 * Can't allocate from the freelist for some reason.
+	 */
+	else
+		flen = 0;
+	/*
+	 * Can't do the allocation, give up.
+	 */
+	if (flen < args->minlen) {
+		args->agbno = NULLAGBLOCK;
+		TRACE_ALLOC("notenough", args);
+		flen = 0;
+	}
+	*fbnop = fbno;
+	*flenp = flen;
+	*stat = 1;
+	TRACE_ALLOC("normal", args);
+	return 0;
+
+error0:
+	TRACE_ALLOC("error", args);
+	return error;
+}
+
+/*
+ * Free the extent starting at agno/bno for length.
+ */
+STATIC int			/* error */
+xfs_free_ag_extent(
+	xfs_trans_t	*tp,	/* transaction pointer */
+	xfs_buf_t	*agbp,	/* buffer for a.g. freelist header */
+	xfs_agnumber_t	agno,	/* allocation group number */
+	xfs_agblock_t	bno,	/* starting block number */
+	xfs_extlen_t	len,	/* length of extent */
+	int		isfl)	/* set if is freelist blocks - no sb acctg */
+{
+	xfs_btree_cur_t	*bno_cur;	/* cursor for by-block btree */
+	xfs_btree_cur_t	*cnt_cur;	/* cursor for by-size btree */
+	int		error;		/* error return value */
+#ifdef XFS_ALLOC_TRACE
+	static char	fname[] = "xfs_free_ag_extent";
+#endif
+	xfs_agblock_t	gtbno;		/* start of right neighbor block */
+	xfs_extlen_t	gtlen;		/* length of right neighbor block */
+	int		haveleft;	/* have a left neighbor block */
+	int		haveright;	/* have a right neighbor block */
+	int		i;		/* temp, result code */
+	xfs_agblock_t	ltbno;		/* start of left neighbor block */
+	xfs_extlen_t	ltlen;		/* length of left neighbor block */
+	xfs_mount_t	*mp;		/* mount point struct for filesystem */
+	xfs_agblock_t	nbno;		/* new starting block of freespace */
+	xfs_extlen_t	nlen;		/* new length of freespace */
+
+	mp = tp->t_mountp;
+	/*
+	 * Allocate and initialize a cursor for the by-block btree.
+	 */
+	bno_cur = xfs_btree_init_cursor(mp, tp, agbp, agno, XFS_BTNUM_BNO, NULL,
+		0);
+	cnt_cur = NULL;
+	/*
+	 * Look for a neighboring block on the left (lower block numbers)
+	 * that is contiguous with this space.
+	 */
+	if ((error = xfs_alloc_lookup_le(bno_cur, bno, len, &haveleft)))
+		goto error0;
+	if (haveleft) {
+		/*
+		 * There is a block to our left.
+		 */
+		if ((error = xfs_alloc_get_rec(bno_cur, &ltbno, &ltlen, &i)))
+			goto error0;
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		/*
+		 * It's not contiguous, though.
+		 */
+		if (ltbno + ltlen < bno)
+			haveleft = 0;
+		else {
+			/*
+			 * If this failure happens the request to free this
+			 * space was invalid, it's (partly) already free.
+			 * Very bad.
+			 */
+			XFS_WANT_CORRUPTED_GOTO(ltbno + ltlen <= bno, error0);
+		}
+	}
+	/*
+	 * Look for a neighboring block on the right (higher block numbers)
+	 * that is contiguous with this space.
+	 */
+	if ((error = xfs_alloc_increment(bno_cur, 0, &haveright)))
+		goto error0;
+	if (haveright) {
+		/*
+		 * There is a block to our right.
+		 */
+		if ((error = xfs_alloc_get_rec(bno_cur, &gtbno, &gtlen, &i)))
+			goto error0;
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		/*
+		 * It's not contiguous, though.
+		 */
+		if (bno + len < gtbno)
+			haveright = 0;
+		else {
+			/*
+			 * If this failure happens the request to free this
+			 * space was invalid, it's (partly) already free.
+			 * Very bad.
+			 */
+			XFS_WANT_CORRUPTED_GOTO(gtbno >= bno + len, error0);
+		}
+	}
+	/*
+	 * Now allocate and initialize a cursor for the by-size tree.
+	 */
+	cnt_cur = xfs_btree_init_cursor(mp, tp, agbp, agno, XFS_BTNUM_CNT, NULL,
+		0);
+	/*
+	 * Have both left and right contiguous neighbors.
+	 * Merge all three into a single free block.
+	 */
+	if (haveleft && haveright) {
+		/*
+		 * Delete the old by-size entry on the left.
+		 */
+		if ((error = xfs_alloc_lookup_eq(cnt_cur, ltbno, ltlen, &i)))
+			goto error0;
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		if ((error = xfs_alloc_delete(cnt_cur, &i)))
+			goto error0;
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		/*
+		 * Delete the old by-size entry on the right.
+		 */
+		if ((error = xfs_alloc_lookup_eq(cnt_cur, gtbno, gtlen, &i)))
+			goto error0;
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		if ((error = xfs_alloc_delete(cnt_cur, &i)))
+			goto error0;
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		/*
+		 * Delete the old by-block entry for the right block.
+		 */
+		if ((error = xfs_alloc_delete(bno_cur, &i)))
+			goto error0;
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		/*
+		 * Move the by-block cursor back to the left neighbor.
+		 */
+		if ((error = xfs_alloc_decrement(bno_cur, 0, &i)))
+			goto error0;
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+#ifdef DEBUG
+		/*
+		 * Check that this is the right record: delete didn't
+		 * mangle the cursor.
+		 */
+		{
+			xfs_agblock_t	xxbno;
+			xfs_extlen_t	xxlen;
+
+			if ((error = xfs_alloc_get_rec(bno_cur, &xxbno, &xxlen,
+					&i)))
+				goto error0;
+			XFS_WANT_CORRUPTED_GOTO(
+				i == 1 && xxbno == ltbno && xxlen == ltlen,
+				error0);
+		}
+#endif
+		/*
+		 * Update remaining by-block entry to the new, joined block.
+		 */
+		nbno = ltbno;
+		nlen = len + ltlen + gtlen;
+		if ((error = xfs_alloc_update(bno_cur, nbno, nlen)))
+			goto error0;
+	}
+	/*
+	 * Have only a left contiguous neighbor.
+	 * Merge it together with the new freespace.
+	 */
+	else if (haveleft) {
+		/*
+		 * Delete the old by-size entry on the left.
+		 */
+		if ((error = xfs_alloc_lookup_eq(cnt_cur, ltbno, ltlen, &i)))
+			goto error0;
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		if ((error = xfs_alloc_delete(cnt_cur, &i)))
+			goto error0;
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		/*
+		 * Back up the by-block cursor to the left neighbor, and
+		 * update its length.
+		 */
+		if ((error = xfs_alloc_decrement(bno_cur, 0, &i)))
+			goto error0;
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		nbno = ltbno;
+		nlen = len + ltlen;
+		if ((error = xfs_alloc_update(bno_cur, nbno, nlen)))
+			goto error0;
+	}
+	/*
+	 * Have only a right contiguous neighbor.
+	 * Merge it together with the new freespace.
+	 */
+	else if (haveright) {
+		/*
+		 * Delete the old by-size entry on the right.
+		 */
+		if ((error = xfs_alloc_lookup_eq(cnt_cur, gtbno, gtlen, &i)))
+			goto error0;
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		if ((error = xfs_alloc_delete(cnt_cur, &i)))
+			goto error0;
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		/*
+		 * Update the starting block and length of the right
+		 * neighbor in the by-block tree.
+		 */
+		nbno = bno;
+		nlen = len + gtlen;
+		if ((error = xfs_alloc_update(bno_cur, nbno, nlen)))
+			goto error0;
+	}
+	/*
+	 * No contiguous neighbors.
+	 * Insert the new freespace into the by-block tree.
+	 */
+	else {
+		nbno = bno;
+		nlen = len;
+		if ((error = xfs_alloc_insert(bno_cur, &i)))
+			goto error0;
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+	}
+	xfs_btree_del_cursor(bno_cur, XFS_BTREE_NOERROR);
+	bno_cur = NULL;
+	/*
+	 * In all cases we need to insert the new freespace in the by-size tree.
+	 */
+	if ((error = xfs_alloc_lookup_eq(cnt_cur, nbno, nlen, &i)))
+		goto error0;
+	XFS_WANT_CORRUPTED_GOTO(i == 0, error0);
+	if ((error = xfs_alloc_insert(cnt_cur, &i)))
+		goto error0;
+	XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+	xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
+	cnt_cur = NULL;
+	/*
+	 * Update the freespace totals in the ag and superblock.
+	 */
+	{
+		xfs_agf_t	*agf;
+		xfs_perag_t	*pag;		/* per allocation group data */
+
+		agf = XFS_BUF_TO_AGF(agbp);
+		pag = &mp->m_perag[agno];
+		INT_MOD(agf->agf_freeblks, ARCH_CONVERT, len);
+		xfs_trans_agblocks_delta(tp, len);
+		pag->pagf_freeblks += len;
+		XFS_WANT_CORRUPTED_GOTO(
+			INT_GET(agf->agf_freeblks, ARCH_CONVERT)
+				<= INT_GET(agf->agf_length, ARCH_CONVERT),
+			error0);
+		TRACE_MODAGF(NULL, agf, XFS_AGF_FREEBLKS);
+		xfs_alloc_log_agf(tp, agbp, XFS_AGF_FREEBLKS);
+		if (!isfl)
+			xfs_trans_mod_sb(tp, XFS_TRANS_SB_FDBLOCKS, (long)len);
+		XFS_STATS_INC(xs_freex);
+		XFS_STATS_ADD(xs_freeb, len);
+	}
+	TRACE_FREE(haveleft ?
+			(haveright ? "both" : "left") :
+			(haveright ? "right" : "none"),
+		agno, bno, len, isfl);
+
+	/*
+	 * Since blocks move to the free list without the coordination
+	 * used in xfs_bmap_finish, we can't allow block to be available
+	 * for reallocation and non-transaction writing (user data)
+	 * until we know that the transaction that moved it to the free
+	 * list is permanently on disk.  We track the blocks by declaring
+	 * these blocks as "busy"; the busy list is maintained on a per-ag
+	 * basis and each transaction records which entries should be removed
+	 * when the iclog commits to disk.  If a busy block is allocated,
+	 * the iclog is pushed up to the LSN that freed the block.
+	 */
+	xfs_alloc_mark_busy(tp, agno, bno, len);
+	return 0;
+
+ error0:
+	TRACE_FREE("error", agno, bno, len, isfl);
+	if (bno_cur)
+		xfs_btree_del_cursor(bno_cur, XFS_BTREE_ERROR);
+	if (cnt_cur)
+		xfs_btree_del_cursor(cnt_cur, XFS_BTREE_ERROR);
+	return error;
+}
+
+/*
+ * Visible (exported) allocation/free functions.
+ * Some of these are used just by xfs_alloc_btree.c and this file.
+ */
+
+/*
+ * Compute and fill in value of m_ag_maxlevels.
+ */
+void
+xfs_alloc_compute_maxlevels(
+	xfs_mount_t	*mp)	/* file system mount structure */
+{
+	int		level;
+	uint		maxblocks;
+	uint		maxleafents;
+	int		minleafrecs;
+	int		minnoderecs;
+
+	maxleafents = (mp->m_sb.sb_agblocks + 1) / 2;
+	minleafrecs = mp->m_alloc_mnr[0];
+	minnoderecs = mp->m_alloc_mnr[1];
+	maxblocks = (maxleafents + minleafrecs - 1) / minleafrecs;
+	for (level = 1; maxblocks > 1; level++)
+		maxblocks = (maxblocks + minnoderecs - 1) / minnoderecs;
+	mp->m_ag_maxlevels = level;
+}
+
+/*
+ * Decide whether to use this allocation group for this allocation.
+ * If so, fix up the btree freelist's size.
+ */
+STATIC int			/* error */
+xfs_alloc_fix_freelist(
+	xfs_alloc_arg_t	*args,	/* allocation argument structure */
+	int		flags)	/* XFS_ALLOC_FLAG_... */
+{
+	xfs_buf_t	*agbp;	/* agf buffer pointer */
+	xfs_agf_t	*agf;	/* a.g. freespace structure pointer */
+	xfs_buf_t	*agflbp;/* agfl buffer pointer */
+	xfs_agblock_t	bno;	/* freelist block */
+	xfs_extlen_t	delta;	/* new blocks needed in freelist */
+	int		error;	/* error result code */
+	xfs_extlen_t	longest;/* longest extent in allocation group */
+	xfs_mount_t	*mp;	/* file system mount point structure */
+	xfs_extlen_t	need;	/* total blocks needed in freelist */
+	xfs_perag_t	*pag;	/* per-ag information structure */
+	xfs_alloc_arg_t	targs;	/* local allocation arguments */
+	xfs_trans_t	*tp;	/* transaction pointer */
+
+	mp = args->mp;
+
+	pag = args->pag;
+	tp = args->tp;
+	if (!pag->pagf_init) {
+		if ((error = xfs_alloc_read_agf(mp, tp, args->agno, flags,
+				&agbp)))
+			return error;
+		if (!pag->pagf_init) {
+			args->agbp = NULL;
+			return 0;
+		}
+	} else
+		agbp = NULL;
+
+	/* If this is a metadata prefered pag and we are user data
+	 * then try somewhere else if we are not being asked to
+	 * try harder at this point
+	 */
+	if (pag->pagf_metadata && args->userdata && flags) {
+		args->agbp = NULL;
+		return 0;
+	}
+
+	need = XFS_MIN_FREELIST_PAG(pag, mp);
+	delta = need > pag->pagf_flcount ? need - pag->pagf_flcount : 0;
+	/*
+	 * If it looks like there isn't a long enough extent, or enough
+	 * total blocks, reject it.
+	 */
+	longest = (pag->pagf_longest > delta) ?
+		(pag->pagf_longest - delta) :
+		(pag->pagf_flcount > 0 || pag->pagf_longest > 0);
+	if (args->minlen + args->alignment + args->minalignslop - 1 > longest ||
+	    (args->minleft &&
+	     (int)(pag->pagf_freeblks + pag->pagf_flcount -
+		   need - args->total) <
+	     (int)args->minleft)) {
+		if (agbp)
+			xfs_trans_brelse(tp, agbp);
+		args->agbp = NULL;
+		return 0;
+	}
+	/*
+	 * Get the a.g. freespace buffer.
+	 * Can fail if we're not blocking on locks, and it's held.
+	 */
+	if (agbp == NULL) {
+		if ((error = xfs_alloc_read_agf(mp, tp, args->agno, flags,
+				&agbp)))
+			return error;
+		if (agbp == NULL) {
+			args->agbp = NULL;
+			return 0;
+		}
+	}
+	/*
+	 * Figure out how many blocks we should have in the freelist.
+	 */
+	agf = XFS_BUF_TO_AGF(agbp);
+	need = XFS_MIN_FREELIST(agf, mp);
+	delta = need > INT_GET(agf->agf_flcount, ARCH_CONVERT) ?
+		(need - INT_GET(agf->agf_flcount, ARCH_CONVERT)) : 0;
+	/*
+	 * If there isn't enough total or single-extent, reject it.
+	 */
+	longest = INT_GET(agf->agf_longest, ARCH_CONVERT);
+	longest = (longest > delta) ? (longest - delta) :
+		(INT_GET(agf->agf_flcount, ARCH_CONVERT) > 0 || longest > 0);
+	if (args->minlen + args->alignment + args->minalignslop - 1 > longest ||
+	     (args->minleft &&
+		(int)(INT_GET(agf->agf_freeblks, ARCH_CONVERT) +
+		   INT_GET(agf->agf_flcount, ARCH_CONVERT) - need - args->total) <
+	     (int)args->minleft)) {
+		xfs_trans_brelse(tp, agbp);
+		args->agbp = NULL;
+		return 0;
+	}
+	/*
+	 * Make the freelist shorter if it's too long.
+	 */
+	while (INT_GET(agf->agf_flcount, ARCH_CONVERT) > need) {
+		xfs_buf_t	*bp;
+
+		if ((error = xfs_alloc_get_freelist(tp, agbp, &bno)))
+			return error;
+		if ((error = xfs_free_ag_extent(tp, agbp, args->agno, bno, 1, 1)))
+			return error;
+		bp = xfs_btree_get_bufs(mp, tp, args->agno, bno, 0);
+		xfs_trans_binval(tp, bp);
+	}
+	/*
+	 * Initialize the args structure.
+	 */
+	targs.tp = tp;
+	targs.mp = mp;
+	targs.agbp = agbp;
+	targs.agno = args->agno;
+	targs.mod = targs.minleft = targs.wasdel = targs.userdata =
+		targs.minalignslop = 0;
+	targs.alignment = targs.minlen = targs.prod = targs.isfl = 1;
+	targs.type = XFS_ALLOCTYPE_THIS_AG;
+	targs.pag = pag;
+	if ((error = xfs_alloc_read_agfl(mp, tp, targs.agno, &agflbp)))
+		return error;
+	/*
+	 * Make the freelist longer if it's too short.
+	 */
+	while (INT_GET(agf->agf_flcount, ARCH_CONVERT) < need) {
+		targs.agbno = 0;
+		targs.maxlen = need - INT_GET(agf->agf_flcount, ARCH_CONVERT);
+		/*
+		 * Allocate as many blocks as possible at once.
+		 */
+		if ((error = xfs_alloc_ag_vextent(&targs)))
+			return error;
+		/*
+		 * Stop if we run out.  Won't happen if callers are obeying
+		 * the restrictions correctly.  Can happen for free calls
+		 * on a completely full ag.
+		 */
+		if (targs.agbno == NULLAGBLOCK)
+			break;
+		/*
+		 * Put each allocated block on the list.
+		 */
+		for (bno = targs.agbno; bno < targs.agbno + targs.len; bno++) {
+			if ((error = xfs_alloc_put_freelist(tp, agbp, agflbp,
+					bno)))
+				return error;
+		}
+	}
+	args->agbp = agbp;
+	return 0;
+}
+
+/*
+ * Get a block from the freelist.
+ * Returns with the buffer for the block gotten.
+ */
+int				/* error */
+xfs_alloc_get_freelist(
+	xfs_trans_t	*tp,	/* transaction pointer */
+	xfs_buf_t	*agbp,	/* buffer containing the agf structure */
+	xfs_agblock_t	*bnop)	/* block address retrieved from freelist */
+{
+	xfs_agf_t	*agf;	/* a.g. freespace structure */
+	xfs_agfl_t	*agfl;	/* a.g. freelist structure */
+	xfs_buf_t	*agflbp;/* buffer for a.g. freelist structure */
+	xfs_agblock_t	bno;	/* block number returned */
+	int		error;
+#ifdef XFS_ALLOC_TRACE
+	static char	fname[] = "xfs_alloc_get_freelist";
+#endif
+	xfs_mount_t	*mp;	/* mount structure */
+	xfs_perag_t	*pag;	/* per allocation group data */
+
+	agf = XFS_BUF_TO_AGF(agbp);
+	/*
+	 * Freelist is empty, give up.
+	 */
+	if (INT_ISZERO(agf->agf_flcount, ARCH_CONVERT)) {
+		*bnop = NULLAGBLOCK;
+		return 0;
+	}
+	/*
+	 * Read the array of free blocks.
+	 */
+	mp = tp->t_mountp;
+	if ((error = xfs_alloc_read_agfl(mp, tp,
+			INT_GET(agf->agf_seqno, ARCH_CONVERT), &agflbp)))
+		return error;
+	agfl = XFS_BUF_TO_AGFL(agflbp);
+	/*
+	 * Get the block number and update the data structures.
+	 */
+	bno = INT_GET(agfl->agfl_bno[INT_GET(agf->agf_flfirst, ARCH_CONVERT)], ARCH_CONVERT);
+	INT_MOD(agf->agf_flfirst, ARCH_CONVERT, 1);
+	xfs_trans_brelse(tp, agflbp);
+	if (INT_GET(agf->agf_flfirst, ARCH_CONVERT) == XFS_AGFL_SIZE(mp))
+		INT_ZERO(agf->agf_flfirst, ARCH_CONVERT);
+	pag = &mp->m_perag[INT_GET(agf->agf_seqno, ARCH_CONVERT)];
+	INT_MOD(agf->agf_flcount, ARCH_CONVERT, -1);
+	xfs_trans_agflist_delta(tp, -1);
+	pag->pagf_flcount--;
+	TRACE_MODAGF(NULL, agf, XFS_AGF_FLFIRST | XFS_AGF_FLCOUNT);
+	xfs_alloc_log_agf(tp, agbp, XFS_AGF_FLFIRST | XFS_AGF_FLCOUNT);
+	*bnop = bno;
+
+	/*
+	 * As blocks are freed, they are added to the per-ag busy list
+	 * and remain there until the freeing transaction is committed to
+	 * disk.  Now that we have allocated blocks, this list must be
+	 * searched to see if a block is being reused.  If one is, then
+	 * the freeing transaction must be pushed to disk NOW by forcing
+	 * to disk all iclogs up that transaction's LSN.
+	 */
+	xfs_alloc_search_busy(tp, INT_GET(agf->agf_seqno, ARCH_CONVERT), bno, 1);
+	return 0;
+}
+
+/*
+ * Log the given fields from the agf structure.
+ */
+void
+xfs_alloc_log_agf(
+	xfs_trans_t	*tp,	/* transaction pointer */
+	xfs_buf_t	*bp,	/* buffer for a.g. freelist header */
+	int		fields)	/* mask of fields to be logged (XFS_AGF_...) */
+{
+	int	first;		/* first byte offset */
+	int	last;		/* last byte offset */
+	static const short	offsets[] = {
+		offsetof(xfs_agf_t, agf_magicnum),
+		offsetof(xfs_agf_t, agf_versionnum),
+		offsetof(xfs_agf_t, agf_seqno),
+		offsetof(xfs_agf_t, agf_length),
+		offsetof(xfs_agf_t, agf_roots[0]),
+		offsetof(xfs_agf_t, agf_levels[0]),
+		offsetof(xfs_agf_t, agf_flfirst),
+		offsetof(xfs_agf_t, agf_fllast),
+		offsetof(xfs_agf_t, agf_flcount),
+		offsetof(xfs_agf_t, agf_freeblks),
+		offsetof(xfs_agf_t, agf_longest),
+		sizeof(xfs_agf_t)
+	};
+
+	xfs_btree_offsets(fields, offsets, XFS_AGF_NUM_BITS, &first, &last);
+	xfs_trans_log_buf(tp, bp, (uint)first, (uint)last);
+}
+
+/*
+ * Interface for inode allocation to force the pag data to be initialized.
+ */
+int					/* error */
+xfs_alloc_pagf_init(
+	xfs_mount_t		*mp,	/* file system mount structure */
+	xfs_trans_t		*tp,	/* transaction pointer */
+	xfs_agnumber_t		agno,	/* allocation group number */
+	int			flags)	/* XFS_ALLOC_FLAGS_... */
+{
+	xfs_buf_t		*bp;
+	int			error;
+
+	if ((error = xfs_alloc_read_agf(mp, tp, agno, flags, &bp)))
+		return error;
+	if (bp)
+		xfs_trans_brelse(tp, bp);
+	return 0;
+}
+
+/*
+ * Put the block on the freelist for the allocation group.
+ */
+int					/* error */
+xfs_alloc_put_freelist(
+	xfs_trans_t		*tp,	/* transaction pointer */
+	xfs_buf_t		*agbp,	/* buffer for a.g. freelist header */
+	xfs_buf_t		*agflbp,/* buffer for a.g. free block array */
+	xfs_agblock_t		bno)	/* block being freed */
+{
+	xfs_agf_t		*agf;	/* a.g. freespace structure */
+	xfs_agfl_t		*agfl;	/* a.g. free block array */
+	xfs_agblock_t		*blockp;/* pointer to array entry */
+	int			error;
+#ifdef XFS_ALLOC_TRACE
+	static char		fname[] = "xfs_alloc_put_freelist";
+#endif
+	xfs_mount_t		*mp;	/* mount structure */
+	xfs_perag_t		*pag;	/* per allocation group data */
+
+	agf = XFS_BUF_TO_AGF(agbp);
+	mp = tp->t_mountp;
+
+	if (!agflbp && (error = xfs_alloc_read_agfl(mp, tp,
+			INT_GET(agf->agf_seqno, ARCH_CONVERT), &agflbp)))
+		return error;
+	agfl = XFS_BUF_TO_AGFL(agflbp);
+	INT_MOD(agf->agf_fllast, ARCH_CONVERT, 1);
+	if (INT_GET(agf->agf_fllast, ARCH_CONVERT) == XFS_AGFL_SIZE(mp))
+		INT_ZERO(agf->agf_fllast, ARCH_CONVERT);
+	pag = &mp->m_perag[INT_GET(agf->agf_seqno, ARCH_CONVERT)];
+	INT_MOD(agf->agf_flcount, ARCH_CONVERT, 1);
+	xfs_trans_agflist_delta(tp, 1);
+	pag->pagf_flcount++;
+	ASSERT(INT_GET(agf->agf_flcount, ARCH_CONVERT) <= XFS_AGFL_SIZE(mp));
+	blockp = &agfl->agfl_bno[INT_GET(agf->agf_fllast, ARCH_CONVERT)];
+	INT_SET(*blockp, ARCH_CONVERT, bno);
+	TRACE_MODAGF(NULL, agf, XFS_AGF_FLLAST | XFS_AGF_FLCOUNT);
+	xfs_alloc_log_agf(tp, agbp, XFS_AGF_FLLAST | XFS_AGF_FLCOUNT);
+	xfs_trans_log_buf(tp, agflbp,
+		(int)((xfs_caddr_t)blockp - (xfs_caddr_t)agfl),
+		(int)((xfs_caddr_t)blockp - (xfs_caddr_t)agfl +
+			sizeof(xfs_agblock_t) - 1));
+	return 0;
+}
+
+/*
+ * Read in the allocation group header (free/alloc section).
+ */
+int					/* error */
+xfs_alloc_read_agf(
+	xfs_mount_t	*mp,		/* mount point structure */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_agnumber_t	agno,		/* allocation group number */
+	int		flags,		/* XFS_ALLOC_FLAG_... */
+	xfs_buf_t	**bpp)		/* buffer for the ag freelist header */
+{
+	xfs_agf_t	*agf;		/* ag freelist header */
+	int		agf_ok;		/* set if agf is consistent */
+	xfs_buf_t	*bp;		/* return value */
+	xfs_perag_t	*pag;		/* per allocation group data */
+	int		error;
+
+	ASSERT(agno != NULLAGNUMBER);
+	error = xfs_trans_read_buf(
+			mp, tp, mp->m_ddev_targp,
+			XFS_AG_DADDR(mp, agno, XFS_AGF_DADDR(mp)),
+			XFS_FSS_TO_BB(mp, 1),
+			(flags & XFS_ALLOC_FLAG_TRYLOCK) ? XFS_BUF_TRYLOCK : 0U,
+			&bp);
+	if (error)
+		return error;
+	ASSERT(!bp || !XFS_BUF_GETERROR(bp));
+	if (!bp) {
+		*bpp = NULL;
+		return 0;
+	}
+	/*
+	 * Validate the magic number of the agf block.
+	 */
+	agf = XFS_BUF_TO_AGF(bp);
+	agf_ok =
+		INT_GET(agf->agf_magicnum, ARCH_CONVERT) == XFS_AGF_MAGIC &&
+		XFS_AGF_GOOD_VERSION(
+			INT_GET(agf->agf_versionnum, ARCH_CONVERT)) &&
+		INT_GET(agf->agf_freeblks, ARCH_CONVERT) <=
+				INT_GET(agf->agf_length, ARCH_CONVERT) &&
+		INT_GET(agf->agf_flfirst, ARCH_CONVERT) < XFS_AGFL_SIZE(mp) &&
+		INT_GET(agf->agf_fllast,  ARCH_CONVERT) < XFS_AGFL_SIZE(mp) &&
+		INT_GET(agf->agf_flcount, ARCH_CONVERT) <= XFS_AGFL_SIZE(mp);
+	if (unlikely(XFS_TEST_ERROR(!agf_ok, mp, XFS_ERRTAG_ALLOC_READ_AGF,
+			XFS_RANDOM_ALLOC_READ_AGF))) {
+		XFS_CORRUPTION_ERROR("xfs_alloc_read_agf",
+				     XFS_ERRLEVEL_LOW, mp, agf);
+		xfs_trans_brelse(tp, bp);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+	pag = &mp->m_perag[agno];
+	if (!pag->pagf_init) {
+		pag->pagf_freeblks = INT_GET(agf->agf_freeblks, ARCH_CONVERT);
+		pag->pagf_flcount = INT_GET(agf->agf_flcount, ARCH_CONVERT);
+		pag->pagf_longest = INT_GET(agf->agf_longest, ARCH_CONVERT);
+		pag->pagf_levels[XFS_BTNUM_BNOi] =
+			INT_GET(agf->agf_levels[XFS_BTNUM_BNOi], ARCH_CONVERT);
+		pag->pagf_levels[XFS_BTNUM_CNTi] =
+			INT_GET(agf->agf_levels[XFS_BTNUM_CNTi], ARCH_CONVERT);
+		spinlock_init(&pag->pagb_lock, "xfspagb");
+		pag->pagb_list = kmem_zalloc(XFS_PAGB_NUM_SLOTS *
+					sizeof(xfs_perag_busy_t), KM_SLEEP);
+		pag->pagf_init = 1;
+	}
+#ifdef DEBUG
+	else if (!XFS_FORCED_SHUTDOWN(mp)) {
+		ASSERT(pag->pagf_freeblks == INT_GET(agf->agf_freeblks, ARCH_CONVERT));
+		ASSERT(pag->pagf_flcount == INT_GET(agf->agf_flcount, ARCH_CONVERT));
+		ASSERT(pag->pagf_longest == INT_GET(agf->agf_longest, ARCH_CONVERT));
+		ASSERT(pag->pagf_levels[XFS_BTNUM_BNOi] ==
+		       INT_GET(agf->agf_levels[XFS_BTNUM_BNOi], ARCH_CONVERT));
+		ASSERT(pag->pagf_levels[XFS_BTNUM_CNTi] ==
+		       INT_GET(agf->agf_levels[XFS_BTNUM_CNTi], ARCH_CONVERT));
+	}
+#endif
+	XFS_BUF_SET_VTYPE_REF(bp, B_FS_AGF, XFS_AGF_REF);
+	*bpp = bp;
+	return 0;
+}
+
+/*
+ * Allocate an extent (variable-size).
+ * Depending on the allocation type, we either look in a single allocation
+ * group or loop over the allocation groups to find the result.
+ */
+int				/* error */
+xfs_alloc_vextent(
+	xfs_alloc_arg_t	*args)	/* allocation argument structure */
+{
+	xfs_agblock_t	agsize;	/* allocation group size */
+	int		error;
+	int		flags;	/* XFS_ALLOC_FLAG_... locking flags */
+#ifdef XFS_ALLOC_TRACE
+	static char	fname[] = "xfs_alloc_vextent";
+#endif
+	xfs_extlen_t	minleft;/* minimum left value, temp copy */
+	xfs_mount_t	*mp;	/* mount structure pointer */
+	xfs_agnumber_t	sagno;	/* starting allocation group number */
+	xfs_alloctype_t	type;	/* input allocation type */
+	int		bump_rotor = 0;
+	int		no_min = 0;
+	xfs_agnumber_t	rotorstep = xfs_rotorstep; /* inode32 agf stepper */
+
+	mp = args->mp;
+	type = args->otype = args->type;
+	args->agbno = NULLAGBLOCK;
+	/*
+	 * Just fix this up, for the case where the last a.g. is shorter
+	 * (or there's only one a.g.) and the caller couldn't easily figure
+	 * that out (xfs_bmap_alloc).
+	 */
+	agsize = mp->m_sb.sb_agblocks;
+	if (args->maxlen > agsize)
+		args->maxlen = agsize;
+	if (args->alignment == 0)
+		args->alignment = 1;
+	ASSERT(XFS_FSB_TO_AGNO(mp, args->fsbno) < mp->m_sb.sb_agcount);
+	ASSERT(XFS_FSB_TO_AGBNO(mp, args->fsbno) < agsize);
+	ASSERT(args->minlen <= args->maxlen);
+	ASSERT(args->minlen <= agsize);
+	ASSERT(args->mod < args->prod);
+	if (XFS_FSB_TO_AGNO(mp, args->fsbno) >= mp->m_sb.sb_agcount ||
+	    XFS_FSB_TO_AGBNO(mp, args->fsbno) >= agsize ||
+	    args->minlen > args->maxlen || args->minlen > agsize ||
+	    args->mod >= args->prod) {
+		args->fsbno = NULLFSBLOCK;
+		TRACE_ALLOC("badargs", args);
+		return 0;
+	}
+	minleft = args->minleft;
+
+	switch (type) {
+	case XFS_ALLOCTYPE_THIS_AG:
+	case XFS_ALLOCTYPE_NEAR_BNO:
+	case XFS_ALLOCTYPE_THIS_BNO:
+		/*
+		 * These three force us into a single a.g.
+		 */
+		args->agno = XFS_FSB_TO_AGNO(mp, args->fsbno);
+		down_read(&mp->m_peraglock);
+		args->pag = &mp->m_perag[args->agno];
+		args->minleft = 0;
+		error = xfs_alloc_fix_freelist(args, 0);
+		args->minleft = minleft;
+		if (error) {
+			TRACE_ALLOC("nofix", args);
+			goto error0;
+		}
+		if (!args->agbp) {
+			up_read(&mp->m_peraglock);
+			TRACE_ALLOC("noagbp", args);
+			break;
+		}
+		args->agbno = XFS_FSB_TO_AGBNO(mp, args->fsbno);
+		if ((error = xfs_alloc_ag_vextent(args)))
+			goto error0;
+		up_read(&mp->m_peraglock);
+		break;
+	case XFS_ALLOCTYPE_START_BNO:
+		/*
+		 * Try near allocation first, then anywhere-in-ag after
+		 * the first a.g. fails.
+		 */
+		if ((args->userdata  == XFS_ALLOC_INITIAL_USER_DATA) &&
+		    (mp->m_flags & XFS_MOUNT_32BITINODES)) {
+			args->fsbno = XFS_AGB_TO_FSB(mp,
+					((mp->m_agfrotor / rotorstep) %
+					mp->m_sb.sb_agcount), 0);
+			bump_rotor = 1;
+		}
+		args->agbno = XFS_FSB_TO_AGBNO(mp, args->fsbno);
+		args->type = XFS_ALLOCTYPE_NEAR_BNO;
+		/* FALLTHROUGH */
+	case XFS_ALLOCTYPE_ANY_AG:
+	case XFS_ALLOCTYPE_START_AG:
+	case XFS_ALLOCTYPE_FIRST_AG:
+		/*
+		 * Rotate through the allocation groups looking for a winner.
+		 */
+		if (type == XFS_ALLOCTYPE_ANY_AG) {
+			/*
+			 * Start with the last place we left off.
+			 */
+			args->agno = sagno = (mp->m_agfrotor / rotorstep) %
+					mp->m_sb.sb_agcount;
+			args->type = XFS_ALLOCTYPE_THIS_AG;
+			flags = XFS_ALLOC_FLAG_TRYLOCK;
+		} else if (type == XFS_ALLOCTYPE_FIRST_AG) {
+			/*
+			 * Start with allocation group given by bno.
+			 */
+			args->agno = XFS_FSB_TO_AGNO(mp, args->fsbno);
+			args->type = XFS_ALLOCTYPE_THIS_AG;
+			sagno = 0;
+			flags = 0;
+		} else {
+			if (type == XFS_ALLOCTYPE_START_AG)
+				args->type = XFS_ALLOCTYPE_THIS_AG;
+			/*
+			 * Start with the given allocation group.
+			 */
+			args->agno = sagno = XFS_FSB_TO_AGNO(mp, args->fsbno);
+			flags = XFS_ALLOC_FLAG_TRYLOCK;
+		}
+		/*
+		 * Loop over allocation groups twice; first time with
+		 * trylock set, second time without.
+		 */
+		down_read(&mp->m_peraglock);
+		for (;;) {
+			args->pag = &mp->m_perag[args->agno];
+			if (no_min) args->minleft = 0;
+			error = xfs_alloc_fix_freelist(args, flags);
+			args->minleft = minleft;
+			if (error) {
+				TRACE_ALLOC("nofix", args);
+				goto error0;
+			}
+			/*
+			 * If we get a buffer back then the allocation will fly.
+			 */
+			if (args->agbp) {
+				if ((error = xfs_alloc_ag_vextent(args)))
+					goto error0;
+				break;
+			}
+			TRACE_ALLOC("loopfailed", args);
+			/*
+			 * Didn't work, figure out the next iteration.
+			 */
+			if (args->agno == sagno &&
+			    type == XFS_ALLOCTYPE_START_BNO)
+				args->type = XFS_ALLOCTYPE_THIS_AG;
+			if (++(args->agno) == mp->m_sb.sb_agcount)
+				args->agno = 0;
+			/*
+			 * Reached the starting a.g., must either be done
+			 * or switch to non-trylock mode.
+			 */
+			if (args->agno == sagno) {
+				if (no_min == 1) {
+					args->agbno = NULLAGBLOCK;
+					TRACE_ALLOC("allfailed", args);
+					break;
+				}
+				if (flags == 0) {
+					no_min = 1;
+				} else {
+					flags = 0;
+					if (type == XFS_ALLOCTYPE_START_BNO) {
+						args->agbno = XFS_FSB_TO_AGBNO(mp,
+							args->fsbno);
+						args->type = XFS_ALLOCTYPE_NEAR_BNO;
+					}
+				}
+			}
+		}
+		up_read(&mp->m_peraglock);
+		if (bump_rotor || (type == XFS_ALLOCTYPE_ANY_AG)) {
+			if (args->agno == sagno)
+				mp->m_agfrotor = (mp->m_agfrotor + 1) %
+					(mp->m_sb.sb_agcount * rotorstep);
+			else
+				mp->m_agfrotor = (args->agno * rotorstep + 1) %
+					(mp->m_sb.sb_agcount * rotorstep);
+		}
+		break;
+	default:
+		ASSERT(0);
+		/* NOTREACHED */
+	}
+	if (args->agbno == NULLAGBLOCK)
+		args->fsbno = NULLFSBLOCK;
+	else {
+		args->fsbno = XFS_AGB_TO_FSB(mp, args->agno, args->agbno);
+#ifdef DEBUG
+		ASSERT(args->len >= args->minlen);
+		ASSERT(args->len <= args->maxlen);
+		ASSERT(args->agbno % args->alignment == 0);
+		XFS_AG_CHECK_DADDR(mp, XFS_FSB_TO_DADDR(mp, args->fsbno),
+			args->len);
+#endif
+	}
+	return 0;
+error0:
+	up_read(&mp->m_peraglock);
+	return error;
+}
+
+/*
+ * Free an extent.
+ * Just break up the extent address and hand off to xfs_free_ag_extent
+ * after fixing up the freelist.
+ */
+int				/* error */
+xfs_free_extent(
+	xfs_trans_t	*tp,	/* transaction pointer */
+	xfs_fsblock_t	bno,	/* starting block number of extent */
+	xfs_extlen_t	len)	/* length of extent */
+{
+#ifdef DEBUG
+	xfs_agf_t	*agf;	/* a.g. freespace header */
+#endif
+	xfs_alloc_arg_t	args;	/* allocation argument structure */
+	int		error;
+
+	ASSERT(len != 0);
+	args.tp = tp;
+	args.mp = tp->t_mountp;
+	args.agno = XFS_FSB_TO_AGNO(args.mp, bno);
+	ASSERT(args.agno < args.mp->m_sb.sb_agcount);
+	args.agbno = XFS_FSB_TO_AGBNO(args.mp, bno);
+	args.alignment = 1;
+	args.minlen = args.minleft = args.minalignslop = 0;
+	down_read(&args.mp->m_peraglock);
+	args.pag = &args.mp->m_perag[args.agno];
+	if ((error = xfs_alloc_fix_freelist(&args, 0)))
+		goto error0;
+#ifdef DEBUG
+	ASSERT(args.agbp != NULL);
+	agf = XFS_BUF_TO_AGF(args.agbp);
+	ASSERT(args.agbno + len <= INT_GET(agf->agf_length, ARCH_CONVERT));
+#endif
+	error = xfs_free_ag_extent(tp, args.agbp, args.agno, args.agbno,
+		len, 0);
+error0:
+	up_read(&args.mp->m_peraglock);
+	return error;
+}
+
+
+/*
+ * AG Busy list management
+ * The busy list contains block ranges that have been freed but whose
+ * transacations have not yet hit disk.  If any block listed in a busy
+ * list is reused, the transaction that freed it must be forced to disk
+ * before continuing to use the block.
+ *
+ * xfs_alloc_mark_busy - add to the per-ag busy list
+ * xfs_alloc_clear_busy - remove an item from the per-ag busy list
+ */
+void
+xfs_alloc_mark_busy(xfs_trans_t *tp,
+		    xfs_agnumber_t agno,
+		    xfs_agblock_t bno,
+		    xfs_extlen_t len)
+{
+	xfs_mount_t		*mp;
+	xfs_perag_busy_t	*bsy;
+	int			n;
+	SPLDECL(s);
+
+	mp = tp->t_mountp;
+	s = mutex_spinlock(&mp->m_perag[agno].pagb_lock);
+
+	/* search pagb_list for an open slot */
+	for (bsy = mp->m_perag[agno].pagb_list, n = 0;
+	     n < XFS_PAGB_NUM_SLOTS;
+	     bsy++, n++) {
+		if (bsy->busy_tp == NULL) {
+			break;
+		}
+	}
+
+	if (n < XFS_PAGB_NUM_SLOTS) {
+		bsy = &mp->m_perag[agno].pagb_list[n];
+		mp->m_perag[agno].pagb_count++;
+		TRACE_BUSY("xfs_alloc_mark_busy", "got", agno, bno, len, n, tp);
+		bsy->busy_start = bno;
+		bsy->busy_length = len;
+		bsy->busy_tp = tp;
+		xfs_trans_add_busy(tp, agno, n);
+	} else {
+		TRACE_BUSY("xfs_alloc_mark_busy", "FULL", agno, bno, len, -1, tp);
+		/*
+		 * The busy list is full!  Since it is now not possible to
+		 * track the free block, make this a synchronous transaction
+		 * to insure that the block is not reused before this
+		 * transaction commits.
+		 */
+		xfs_trans_set_sync(tp);
+	}
+
+	mutex_spinunlock(&mp->m_perag[agno].pagb_lock, s);
+}
+
+void
+xfs_alloc_clear_busy(xfs_trans_t *tp,
+		     xfs_agnumber_t agno,
+		     int idx)
+{
+	xfs_mount_t		*mp;
+	xfs_perag_busy_t	*list;
+	SPLDECL(s);
+
+	mp = tp->t_mountp;
+
+	s = mutex_spinlock(&mp->m_perag[agno].pagb_lock);
+	list = mp->m_perag[agno].pagb_list;
+
+	ASSERT(idx < XFS_PAGB_NUM_SLOTS);
+	if (list[idx].busy_tp == tp) {
+		TRACE_UNBUSY("xfs_alloc_clear_busy", "found", agno, idx, tp);
+		list[idx].busy_tp = NULL;
+		mp->m_perag[agno].pagb_count--;
+	} else {
+		TRACE_UNBUSY("xfs_alloc_clear_busy", "missing", agno, idx, tp);
+	}
+
+	mutex_spinunlock(&mp->m_perag[agno].pagb_lock, s);
+}
+
+
+/*
+ * returns non-zero if any of (agno,bno):len is in a busy list
+ */
+int
+xfs_alloc_search_busy(xfs_trans_t *tp,
+		    xfs_agnumber_t agno,
+		    xfs_agblock_t bno,
+		    xfs_extlen_t len)
+{
+	xfs_mount_t		*mp;
+	xfs_perag_busy_t	*bsy;
+	int			n;
+	xfs_agblock_t		uend, bend;
+	xfs_lsn_t		lsn;
+	int			cnt;
+	SPLDECL(s);
+
+	mp = tp->t_mountp;
+
+	s = mutex_spinlock(&mp->m_perag[agno].pagb_lock);
+	cnt = mp->m_perag[agno].pagb_count;
+
+	uend = bno + len - 1;
+
+	/* search pagb_list for this slot, skipping open slots */
+	for (bsy = mp->m_perag[agno].pagb_list, n = 0;
+	     cnt; bsy++, n++) {
+
+		/*
+		 * (start1,length1) within (start2, length2)
+		 */
+		if (bsy->busy_tp != NULL) {
+			bend = bsy->busy_start + bsy->busy_length - 1;
+			if ((bno > bend) ||
+			    (uend < bsy->busy_start)) {
+				cnt--;
+			} else {
+				TRACE_BUSYSEARCH("xfs_alloc_search_busy",
+						 "found1", agno, bno, len, n,
+						 tp);
+				break;
+			}
+		}
+	}
+
+	/*
+	 * If a block was found, force the log through the LSN of the
+	 * transaction that freed the block
+	 */
+	if (cnt) {
+		TRACE_BUSYSEARCH("xfs_alloc_search_busy", "found", agno, bno, len, n, tp);
+		lsn = bsy->busy_tp->t_commit_lsn;
+		mutex_spinunlock(&mp->m_perag[agno].pagb_lock, s);
+		xfs_log_force(mp, lsn, XFS_LOG_FORCE|XFS_LOG_SYNC);
+	} else {
+		TRACE_BUSYSEARCH("xfs_alloc_search_busy", "not-found", agno, bno, len, n, tp);
+		n = -1;
+		mutex_spinunlock(&mp->m_perag[agno].pagb_lock, s);
+	}
+
+	return n;
+}
diff --git a/fs/xfs/xfs_alloc.h b/fs/xfs/xfs_alloc.h
new file mode 100644
index 00000000000000..72329c86351cdb
--- /dev/null
+++ b/fs/xfs/xfs_alloc.h
@@ -0,0 +1,203 @@
+/*
+ * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_ALLOC_H__
+#define	__XFS_ALLOC_H__
+
+struct xfs_buf;
+struct xfs_mount;
+struct xfs_perag;
+struct xfs_trans;
+
+/*
+ * Freespace allocation types.  Argument to xfs_alloc_[v]extent.
+ */
+typedef enum xfs_alloctype
+{
+	XFS_ALLOCTYPE_ANY_AG,		/* allocate anywhere, use rotor */
+	XFS_ALLOCTYPE_FIRST_AG,		/* ... start at ag 0 */
+	XFS_ALLOCTYPE_START_AG,		/* anywhere, start in this a.g. */
+	XFS_ALLOCTYPE_THIS_AG,		/* anywhere in this a.g. */
+	XFS_ALLOCTYPE_START_BNO,	/* near this block else anywhere */
+	XFS_ALLOCTYPE_NEAR_BNO,		/* in this a.g. and near this block */
+	XFS_ALLOCTYPE_THIS_BNO		/* at exactly this block */
+} xfs_alloctype_t;
+
+/*
+ * Flags for xfs_alloc_fix_freelist.
+ */
+#define	XFS_ALLOC_FLAG_TRYLOCK	0x00000001  /* use trylock for buffer locking */
+
+/*
+ * Argument structure for xfs_alloc routines.
+ * This is turned into a structure to avoid having 20 arguments passed
+ * down several levels of the stack.
+ */
+typedef struct xfs_alloc_arg {
+	struct xfs_trans *tp;		/* transaction pointer */
+	struct xfs_mount *mp;		/* file system mount point */
+	struct xfs_buf	*agbp;		/* buffer for a.g. freelist header */
+	struct xfs_perag *pag;		/* per-ag struct for this agno */
+	xfs_fsblock_t	fsbno;		/* file system block number */
+	xfs_agnumber_t	agno;		/* allocation group number */
+	xfs_agblock_t	agbno;		/* allocation group-relative block # */
+	xfs_extlen_t	minlen;		/* minimum size of extent */
+	xfs_extlen_t	maxlen;		/* maximum size of extent */
+	xfs_extlen_t	mod;		/* mod value for extent size */
+	xfs_extlen_t	prod;		/* prod value for extent size */
+	xfs_extlen_t	minleft;	/* min blocks must be left after us */
+	xfs_extlen_t	total;		/* total blocks needed in xaction */
+	xfs_extlen_t	alignment;	/* align answer to multiple of this */
+	xfs_extlen_t	minalignslop;	/* slop for minlen+alignment calcs */
+	xfs_extlen_t	len;		/* output: actual size of extent */
+	xfs_alloctype_t	type;		/* allocation type XFS_ALLOCTYPE_... */
+	xfs_alloctype_t	otype;		/* original allocation type */
+	char		wasdel;		/* set if allocation was prev delayed */
+	char		wasfromfl;	/* set if allocation is from freelist */
+	char		isfl;		/* set if is freelist blocks - !actg */
+	char		userdata;	/* set if this is user data */
+} xfs_alloc_arg_t;
+
+/*
+ * Defines for userdata
+ */
+#define XFS_ALLOC_USERDATA		1	/* allocation is for user data*/
+#define XFS_ALLOC_INITIAL_USER_DATA	2	/* special case start of file */
+
+
+#ifdef __KERNEL__
+
+#if defined(XFS_ALLOC_TRACE)
+/*
+ * Allocation tracing buffer size.
+ */
+#define	XFS_ALLOC_TRACE_SIZE	4096
+extern ktrace_t *xfs_alloc_trace_buf;
+
+/*
+ * Types for alloc tracing.
+ */
+#define	XFS_ALLOC_KTRACE_ALLOC	1
+#define	XFS_ALLOC_KTRACE_FREE	2
+#define	XFS_ALLOC_KTRACE_MODAGF	3
+#define	XFS_ALLOC_KTRACE_BUSY	4
+#define	XFS_ALLOC_KTRACE_UNBUSY	5
+#define	XFS_ALLOC_KTRACE_BUSYSEARCH	6
+#endif
+
+/*
+ * Compute and fill in value of m_ag_maxlevels.
+ */
+void
+xfs_alloc_compute_maxlevels(
+	struct xfs_mount	*mp);	/* file system mount structure */
+
+/*
+ * Get a block from the freelist.
+ * Returns with the buffer for the block gotten.
+ */
+int				/* error */
+xfs_alloc_get_freelist(
+	struct xfs_trans *tp,	/* transaction pointer */
+	struct xfs_buf	*agbp,	/* buffer containing the agf structure */
+	xfs_agblock_t	*bnop);	/* block address retrieved from freelist */
+
+/*
+ * Log the given fields from the agf structure.
+ */
+void
+xfs_alloc_log_agf(
+	struct xfs_trans *tp,	/* transaction pointer */
+	struct xfs_buf	*bp,	/* buffer for a.g. freelist header */
+	int		fields);/* mask of fields to be logged (XFS_AGF_...) */
+
+/*
+ * Interface for inode allocation to force the pag data to be initialized.
+ */
+int				/* error */
+xfs_alloc_pagf_init(
+	struct xfs_mount *mp,	/* file system mount structure */
+	struct xfs_trans *tp,	/* transaction pointer */
+	xfs_agnumber_t	agno,	/* allocation group number */
+	int		flags);	/* XFS_ALLOC_FLAGS_... */
+
+/*
+ * Put the block on the freelist for the allocation group.
+ */
+int				/* error */
+xfs_alloc_put_freelist(
+	struct xfs_trans *tp,	/* transaction pointer */
+	struct xfs_buf	*agbp,	/* buffer for a.g. freelist header */
+	struct xfs_buf	*agflbp,/* buffer for a.g. free block array */
+	xfs_agblock_t	bno);	/* block being freed */
+
+/*
+ * Read in the allocation group header (free/alloc section).
+ */
+int					/* error  */
+xfs_alloc_read_agf(
+	struct xfs_mount *mp,		/* mount point structure */
+	struct xfs_trans *tp,		/* transaction pointer */
+	xfs_agnumber_t	agno,		/* allocation group number */
+	int		flags,		/* XFS_ALLOC_FLAG_... */
+	struct xfs_buf	**bpp);		/* buffer for the ag freelist header */
+
+/*
+ * Allocate an extent (variable-size).
+ */
+int				/* error */
+xfs_alloc_vextent(
+	xfs_alloc_arg_t	*args);	/* allocation argument structure */
+
+/*
+ * Free an extent.
+ */
+int				/* error */
+xfs_free_extent(
+	struct xfs_trans *tp,	/* transaction pointer */
+	xfs_fsblock_t	bno,	/* starting block number of extent */
+	xfs_extlen_t	len);	/* length of extent */
+
+void
+xfs_alloc_mark_busy(xfs_trans_t *tp,
+		xfs_agnumber_t agno,
+		xfs_agblock_t bno,
+		xfs_extlen_t len);
+
+void
+xfs_alloc_clear_busy(xfs_trans_t *tp,
+		xfs_agnumber_t ag,
+		int idx);
+
+
+#endif	/* __KERNEL__ */
+
+#endif	/* __XFS_ALLOC_H__ */
diff --git a/fs/xfs/xfs_alloc_btree.c b/fs/xfs/xfs_alloc_btree.c
new file mode 100644
index 00000000000000..6b5de3a284e3f0
--- /dev/null
+++ b/fs/xfs/xfs_alloc_btree.c
@@ -0,0 +1,2204 @@
+/*
+ * Copyright (c) 2000-2001 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+/*
+ * Free space allocation for XFS.
+ */
+
+#include "xfs.h"
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_alloc.h"
+#include "xfs_error.h"
+
+/*
+ * Prototypes for internal functions.
+ */
+
+STATIC void xfs_alloc_log_block(xfs_trans_t *, xfs_buf_t *, int);
+STATIC void xfs_alloc_log_keys(xfs_btree_cur_t *, xfs_buf_t *, int, int);
+STATIC void xfs_alloc_log_ptrs(xfs_btree_cur_t *, xfs_buf_t *, int, int);
+STATIC void xfs_alloc_log_recs(xfs_btree_cur_t *, xfs_buf_t *, int, int);
+STATIC int xfs_alloc_lshift(xfs_btree_cur_t *, int, int *);
+STATIC int xfs_alloc_newroot(xfs_btree_cur_t *, int *);
+STATIC int xfs_alloc_rshift(xfs_btree_cur_t *, int, int *);
+STATIC int xfs_alloc_split(xfs_btree_cur_t *, int, xfs_agblock_t *,
+		xfs_alloc_key_t *, xfs_btree_cur_t **, int *);
+STATIC int xfs_alloc_updkey(xfs_btree_cur_t *, xfs_alloc_key_t *, int);
+
+/*
+ * Internal functions.
+ */
+
+/*
+ * Single level of the xfs_alloc_delete record deletion routine.
+ * Delete record pointed to by cur/level.
+ * Remove the record from its block then rebalance the tree.
+ * Return 0 for error, 1 for done, 2 to go on to the next level.
+ */
+STATIC int				/* error */
+xfs_alloc_delrec(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			level,	/* level removing record from */
+	int			*stat)	/* fail/done/go-on */
+{
+	xfs_agf_t		*agf;	/* allocation group freelist header */
+	xfs_alloc_block_t	*block;	/* btree block record/key lives in */
+	xfs_agblock_t		bno;	/* btree block number */
+	xfs_buf_t		*bp;	/* buffer for block */
+	int			error;	/* error return value */
+	int			i;	/* loop index */
+	xfs_alloc_key_t		key;	/* kp points here if block is level 0 */
+	xfs_agblock_t		lbno;	/* left block's block number */
+	xfs_buf_t		*lbp;	/* left block's buffer pointer */
+	xfs_alloc_block_t	*left;	/* left btree block */
+	xfs_alloc_key_t		*lkp=NULL;	/* left block key pointer */
+	xfs_alloc_ptr_t		*lpp=NULL;	/* left block address pointer */
+	int			lrecs=0;	/* number of records in left block */
+	xfs_alloc_rec_t		*lrp;	/* left block record pointer */
+	xfs_mount_t		*mp;	/* mount structure */
+	int			ptr;	/* index in btree block for this rec */
+	xfs_agblock_t		rbno;	/* right block's block number */
+	xfs_buf_t		*rbp;	/* right block's buffer pointer */
+	xfs_alloc_block_t	*right;	/* right btree block */
+	xfs_alloc_key_t		*rkp;	/* right block key pointer */
+	xfs_alloc_ptr_t		*rpp;	/* right block address pointer */
+	int			rrecs=0;	/* number of records in right block */
+	xfs_alloc_rec_t		*rrp;	/* right block record pointer */
+	xfs_btree_cur_t		*tcur;	/* temporary btree cursor */
+
+	/*
+	 * Get the index of the entry being deleted, check for nothing there.
+	 */
+	ptr = cur->bc_ptrs[level];
+	if (ptr == 0) {
+		*stat = 0;
+		return 0;
+	}
+	/*
+	 * Get the buffer & block containing the record or key/ptr.
+	 */
+	bp = cur->bc_bufs[level];
+	block = XFS_BUF_TO_ALLOC_BLOCK(bp);
+#ifdef DEBUG
+	if ((error = xfs_btree_check_sblock(cur, block, level, bp)))
+		return error;
+#endif
+	/*
+	 * Fail if we're off the end of the block.
+	 */
+	if (ptr > INT_GET(block->bb_numrecs, ARCH_CONVERT)) {
+		*stat = 0;
+		return 0;
+	}
+	XFS_STATS_INC(xs_abt_delrec);
+	/*
+	 * It's a nonleaf.  Excise the key and ptr being deleted, by
+	 * sliding the entries past them down one.
+	 * Log the changed areas of the block.
+	 */
+	if (level > 0) {
+		lkp = XFS_ALLOC_KEY_ADDR(block, 1, cur);
+		lpp = XFS_ALLOC_PTR_ADDR(block, 1, cur);
+#ifdef DEBUG
+		for (i = ptr; i < INT_GET(block->bb_numrecs, ARCH_CONVERT); i++) {
+			if ((error = xfs_btree_check_sptr(cur, INT_GET(lpp[i], ARCH_CONVERT), level)))
+				return error;
+		}
+#endif
+		if (ptr < INT_GET(block->bb_numrecs, ARCH_CONVERT)) {
+			memmove(&lkp[ptr - 1], &lkp[ptr],
+				(INT_GET(block->bb_numrecs, ARCH_CONVERT) - ptr) * sizeof(*lkp)); /* INT_: mem copy */
+			memmove(&lpp[ptr - 1], &lpp[ptr],
+				(INT_GET(block->bb_numrecs, ARCH_CONVERT) - ptr) * sizeof(*lpp)); /* INT_: mem copy */
+			xfs_alloc_log_ptrs(cur, bp, ptr, INT_GET(block->bb_numrecs, ARCH_CONVERT) - 1);
+			xfs_alloc_log_keys(cur, bp, ptr, INT_GET(block->bb_numrecs, ARCH_CONVERT) - 1);
+		}
+	}
+	/*
+	 * It's a leaf.  Excise the record being deleted, by sliding the
+	 * entries past it down one.  Log the changed areas of the block.
+	 */
+	else {
+		lrp = XFS_ALLOC_REC_ADDR(block, 1, cur);
+		if (ptr < INT_GET(block->bb_numrecs, ARCH_CONVERT)) {
+			memmove(&lrp[ptr - 1], &lrp[ptr],
+				(INT_GET(block->bb_numrecs, ARCH_CONVERT) - ptr) * sizeof(*lrp));
+			xfs_alloc_log_recs(cur, bp, ptr, INT_GET(block->bb_numrecs, ARCH_CONVERT) - 1);
+		}
+		/*
+		 * If it's the first record in the block, we'll need a key
+		 * structure to pass up to the next level (updkey).
+		 */
+		if (ptr == 1) {
+			key.ar_startblock = lrp->ar_startblock; /* INT_: direct copy */
+			key.ar_blockcount = lrp->ar_blockcount; /* INT_: direct copy */
+			lkp = &key;
+		}
+	}
+	/*
+	 * Decrement and log the number of entries in the block.
+	 */
+	INT_MOD(block->bb_numrecs, ARCH_CONVERT, -1);
+	xfs_alloc_log_block(cur->bc_tp, bp, XFS_BB_NUMRECS);
+	/*
+	 * See if the longest free extent in the allocation group was
+	 * changed by this operation.  True if it's the by-size btree, and
+	 * this is the leaf level, and there is no right sibling block,
+	 * and this was the last record.
+	 */
+	agf = XFS_BUF_TO_AGF(cur->bc_private.a.agbp);
+	mp = cur->bc_mp;
+
+	if (level == 0 &&
+	    cur->bc_btnum == XFS_BTNUM_CNT &&
+	    INT_GET(block->bb_rightsib, ARCH_CONVERT) == NULLAGBLOCK &&
+	    ptr > INT_GET(block->bb_numrecs, ARCH_CONVERT)) {
+		ASSERT(ptr == INT_GET(block->bb_numrecs, ARCH_CONVERT) + 1);
+		/*
+		 * There are still records in the block.  Grab the size
+		 * from the last one.
+		 */
+		if (INT_GET(block->bb_numrecs, ARCH_CONVERT)) {
+			rrp = XFS_ALLOC_REC_ADDR(block, INT_GET(block->bb_numrecs, ARCH_CONVERT), cur);
+			INT_COPY(agf->agf_longest, rrp->ar_blockcount, ARCH_CONVERT);
+		}
+		/*
+		 * No free extents left.
+		 */
+		else
+			INT_ZERO(agf->agf_longest, ARCH_CONVERT);
+		mp->m_perag[INT_GET(agf->agf_seqno, ARCH_CONVERT)].pagf_longest =
+			INT_GET(agf->agf_longest, ARCH_CONVERT);
+		xfs_alloc_log_agf(cur->bc_tp, cur->bc_private.a.agbp,
+			XFS_AGF_LONGEST);
+	}
+	/*
+	 * Is this the root level?  If so, we're almost done.
+	 */
+	if (level == cur->bc_nlevels - 1) {
+		/*
+		 * If this is the root level,
+		 * and there's only one entry left,
+		 * and it's NOT the leaf level,
+		 * then we can get rid of this level.
+		 */
+		if (INT_GET(block->bb_numrecs, ARCH_CONVERT) == 1 && level > 0) {
+			/*
+			 * lpp is still set to the first pointer in the block.
+			 * Make it the new root of the btree.
+			 */
+			bno = INT_GET(agf->agf_roots[cur->bc_btnum], ARCH_CONVERT);
+			INT_COPY(agf->agf_roots[cur->bc_btnum], *lpp, ARCH_CONVERT);
+			INT_MOD(agf->agf_levels[cur->bc_btnum], ARCH_CONVERT, -1);
+			mp->m_perag[INT_GET(agf->agf_seqno, ARCH_CONVERT)].pagf_levels[cur->bc_btnum]--;
+			/*
+			 * Put this buffer/block on the ag's freelist.
+			 */
+			if ((error = xfs_alloc_put_freelist(cur->bc_tp,
+					cur->bc_private.a.agbp, NULL, bno)))
+				return error;
+			/*
+			 * Since blocks move to the free list without the
+			 * coordination used in xfs_bmap_finish, we can't allow
+			 * block to be available for reallocation and
+			 * non-transaction writing (user data) until we know
+			 * that the transaction that moved it to the free list
+			 * is permanently on disk. We track the blocks by
+			 * declaring these blocks as "busy"; the busy list is
+			 * maintained on a per-ag basis and each transaction
+			 * records which entries should be removed when the
+			 * iclog commits to disk. If a busy block is
+			 * allocated, the iclog is pushed up to the LSN
+			 * that freed the block.
+			 */
+			xfs_alloc_mark_busy(cur->bc_tp,
+				INT_GET(agf->agf_seqno, ARCH_CONVERT), bno, 1);
+
+			xfs_trans_agbtree_delta(cur->bc_tp, -1);
+			xfs_alloc_log_agf(cur->bc_tp, cur->bc_private.a.agbp,
+				XFS_AGF_ROOTS | XFS_AGF_LEVELS);
+			/*
+			 * Update the cursor so there's one fewer level.
+			 */
+			xfs_btree_setbuf(cur, level, NULL);
+			cur->bc_nlevels--;
+		} else if (level > 0 &&
+			   (error = xfs_alloc_decrement(cur, level, &i)))
+			return error;
+		*stat = 1;
+		return 0;
+	}
+	/*
+	 * If we deleted the leftmost entry in the block, update the
+	 * key values above us in the tree.
+	 */
+	if (ptr == 1 && (error = xfs_alloc_updkey(cur, lkp, level + 1)))
+		return error;
+	/*
+	 * If the number of records remaining in the block is at least
+	 * the minimum, we're done.
+	 */
+	if (INT_GET(block->bb_numrecs, ARCH_CONVERT) >= XFS_ALLOC_BLOCK_MINRECS(level, cur)) {
+		if (level > 0 && (error = xfs_alloc_decrement(cur, level, &i)))
+			return error;
+		*stat = 1;
+		return 0;
+	}
+	/*
+	 * Otherwise, we have to move some records around to keep the
+	 * tree balanced.  Look at the left and right sibling blocks to
+	 * see if we can re-balance by moving only one record.
+	 */
+	rbno = INT_GET(block->bb_rightsib, ARCH_CONVERT);
+	lbno = INT_GET(block->bb_leftsib, ARCH_CONVERT);
+	bno = NULLAGBLOCK;
+	ASSERT(rbno != NULLAGBLOCK || lbno != NULLAGBLOCK);
+	/*
+	 * Duplicate the cursor so our btree manipulations here won't
+	 * disrupt the next level up.
+	 */
+	if ((error = xfs_btree_dup_cursor(cur, &tcur)))
+		return error;
+	/*
+	 * If there's a right sibling, see if it's ok to shift an entry
+	 * out of it.
+	 */
+	if (rbno != NULLAGBLOCK) {
+		/*
+		 * Move the temp cursor to the last entry in the next block.
+		 * Actually any entry but the first would suffice.
+		 */
+		i = xfs_btree_lastrec(tcur, level);
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		if ((error = xfs_alloc_increment(tcur, level, &i)))
+			goto error0;
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		i = xfs_btree_lastrec(tcur, level);
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		/*
+		 * Grab a pointer to the block.
+		 */
+		rbp = tcur->bc_bufs[level];
+		right = XFS_BUF_TO_ALLOC_BLOCK(rbp);
+#ifdef DEBUG
+		if ((error = xfs_btree_check_sblock(cur, right, level, rbp)))
+			goto error0;
+#endif
+		/*
+		 * Grab the current block number, for future use.
+		 */
+		bno = INT_GET(right->bb_leftsib, ARCH_CONVERT);
+		/*
+		 * If right block is full enough so that removing one entry
+		 * won't make it too empty, and left-shifting an entry out
+		 * of right to us works, we're done.
+		 */
+		if (INT_GET(right->bb_numrecs, ARCH_CONVERT) - 1 >=
+		     XFS_ALLOC_BLOCK_MINRECS(level, cur)) {
+			if ((error = xfs_alloc_lshift(tcur, level, &i)))
+				goto error0;
+			if (i) {
+				ASSERT(INT_GET(block->bb_numrecs, ARCH_CONVERT) >=
+				       XFS_ALLOC_BLOCK_MINRECS(level, cur));
+				xfs_btree_del_cursor(tcur,
+						     XFS_BTREE_NOERROR);
+				if (level > 0 &&
+				    (error = xfs_alloc_decrement(cur, level,
+					    &i)))
+					return error;
+				*stat = 1;
+				return 0;
+			}
+		}
+		/*
+		 * Otherwise, grab the number of records in right for
+		 * future reference, and fix up the temp cursor to point
+		 * to our block again (last record).
+		 */
+		rrecs = INT_GET(right->bb_numrecs, ARCH_CONVERT);
+		if (lbno != NULLAGBLOCK) {
+			i = xfs_btree_firstrec(tcur, level);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+			if ((error = xfs_alloc_decrement(tcur, level, &i)))
+				goto error0;
+			XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		}
+	}
+	/*
+	 * If there's a left sibling, see if it's ok to shift an entry
+	 * out of it.
+	 */
+	if (lbno != NULLAGBLOCK) {
+		/*
+		 * Move the temp cursor to the first entry in the
+		 * previous block.
+		 */
+		i = xfs_btree_firstrec(tcur, level);
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		if ((error = xfs_alloc_decrement(tcur, level, &i)))
+			goto error0;
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		xfs_btree_firstrec(tcur, level);
+		/*
+		 * Grab a pointer to the block.
+		 */
+		lbp = tcur->bc_bufs[level];
+		left = XFS_BUF_TO_ALLOC_BLOCK(lbp);
+#ifdef DEBUG
+		if ((error = xfs_btree_check_sblock(cur, left, level, lbp)))
+			goto error0;
+#endif
+		/*
+		 * Grab the current block number, for future use.
+		 */
+		bno = INT_GET(left->bb_rightsib, ARCH_CONVERT);
+		/*
+		 * If left block is full enough so that removing one entry
+		 * won't make it too empty, and right-shifting an entry out
+		 * of left to us works, we're done.
+		 */
+		if (INT_GET(left->bb_numrecs, ARCH_CONVERT) - 1 >=
+		     XFS_ALLOC_BLOCK_MINRECS(level, cur)) {
+			if ((error = xfs_alloc_rshift(tcur, level, &i)))
+				goto error0;
+			if (i) {
+				ASSERT(INT_GET(block->bb_numrecs, ARCH_CONVERT) >=
+				       XFS_ALLOC_BLOCK_MINRECS(level, cur));
+				xfs_btree_del_cursor(tcur,
+						     XFS_BTREE_NOERROR);
+				if (level == 0)
+					cur->bc_ptrs[0]++;
+				*stat = 1;
+				return 0;
+			}
+		}
+		/*
+		 * Otherwise, grab the number of records in right for
+		 * future reference.
+		 */
+		lrecs = INT_GET(left->bb_numrecs, ARCH_CONVERT);
+	}
+	/*
+	 * Delete the temp cursor, we're done with it.
+	 */
+	xfs_btree_del_cursor(tcur, XFS_BTREE_NOERROR);
+	/*
+	 * If here, we need to do a join to keep the tree balanced.
+	 */
+	ASSERT(bno != NULLAGBLOCK);
+	/*
+	 * See if we can join with the left neighbor block.
+	 */
+	if (lbno != NULLAGBLOCK &&
+	    lrecs + INT_GET(block->bb_numrecs, ARCH_CONVERT) <= XFS_ALLOC_BLOCK_MAXRECS(level, cur)) {
+		/*
+		 * Set "right" to be the starting block,
+		 * "left" to be the left neighbor.
+		 */
+		rbno = bno;
+		right = block;
+		rbp = bp;
+		if ((error = xfs_btree_read_bufs(mp, cur->bc_tp,
+				cur->bc_private.a.agno, lbno, 0, &lbp,
+				XFS_ALLOC_BTREE_REF)))
+			return error;
+		left = XFS_BUF_TO_ALLOC_BLOCK(lbp);
+		if ((error = xfs_btree_check_sblock(cur, left, level, lbp)))
+			return error;
+	}
+	/*
+	 * If that won't work, see if we can join with the right neighbor block.
+	 */
+	else if (rbno != NULLAGBLOCK &&
+		 rrecs + INT_GET(block->bb_numrecs, ARCH_CONVERT) <=
+		  XFS_ALLOC_BLOCK_MAXRECS(level, cur)) {
+		/*
+		 * Set "left" to be the starting block,
+		 * "right" to be the right neighbor.
+		 */
+		lbno = bno;
+		left = block;
+		lbp = bp;
+		if ((error = xfs_btree_read_bufs(mp, cur->bc_tp,
+				cur->bc_private.a.agno, rbno, 0, &rbp,
+				XFS_ALLOC_BTREE_REF)))
+			return error;
+		right = XFS_BUF_TO_ALLOC_BLOCK(rbp);
+		if ((error = xfs_btree_check_sblock(cur, right, level, rbp)))
+			return error;
+	}
+	/*
+	 * Otherwise, we can't fix the imbalance.
+	 * Just return.  This is probably a logic error, but it's not fatal.
+	 */
+	else {
+		if (level > 0 && (error = xfs_alloc_decrement(cur, level, &i)))
+			return error;
+		*stat = 1;
+		return 0;
+	}
+	/*
+	 * We're now going to join "left" and "right" by moving all the stuff
+	 * in "right" to "left" and deleting "right".
+	 */
+	if (level > 0) {
+		/*
+		 * It's a non-leaf.  Move keys and pointers.
+		 */
+		lkp = XFS_ALLOC_KEY_ADDR(left, INT_GET(left->bb_numrecs, ARCH_CONVERT) + 1, cur);
+		lpp = XFS_ALLOC_PTR_ADDR(left, INT_GET(left->bb_numrecs, ARCH_CONVERT) + 1, cur);
+		rkp = XFS_ALLOC_KEY_ADDR(right, 1, cur);
+		rpp = XFS_ALLOC_PTR_ADDR(right, 1, cur);
+#ifdef DEBUG
+		for (i = 0; i < INT_GET(right->bb_numrecs, ARCH_CONVERT); i++) {
+			if ((error = xfs_btree_check_sptr(cur, INT_GET(rpp[i], ARCH_CONVERT), level)))
+				return error;
+		}
+#endif
+		memcpy(lkp, rkp, INT_GET(right->bb_numrecs, ARCH_CONVERT) * sizeof(*lkp)); /* INT_: structure copy */
+		memcpy(lpp, rpp, INT_GET(right->bb_numrecs, ARCH_CONVERT) * sizeof(*lpp)); /* INT_: structure copy */
+		xfs_alloc_log_keys(cur, lbp, INT_GET(left->bb_numrecs, ARCH_CONVERT) + 1,
+				   INT_GET(left->bb_numrecs, ARCH_CONVERT) + INT_GET(right->bb_numrecs, ARCH_CONVERT));
+		xfs_alloc_log_ptrs(cur, lbp, INT_GET(left->bb_numrecs, ARCH_CONVERT) + 1,
+				   INT_GET(left->bb_numrecs, ARCH_CONVERT) + INT_GET(right->bb_numrecs, ARCH_CONVERT));
+	} else {
+		/*
+		 * It's a leaf.  Move records.
+		 */
+		lrp = XFS_ALLOC_REC_ADDR(left, INT_GET(left->bb_numrecs, ARCH_CONVERT) + 1, cur);
+		rrp = XFS_ALLOC_REC_ADDR(right, 1, cur);
+		memcpy(lrp, rrp, INT_GET(right->bb_numrecs, ARCH_CONVERT) * sizeof(*lrp));
+		xfs_alloc_log_recs(cur, lbp, INT_GET(left->bb_numrecs, ARCH_CONVERT) + 1,
+				   INT_GET(left->bb_numrecs, ARCH_CONVERT) + INT_GET(right->bb_numrecs, ARCH_CONVERT));
+	}
+	/*
+	 * If we joined with the left neighbor, set the buffer in the
+	 * cursor to the left block, and fix up the index.
+	 */
+	if (bp != lbp) {
+		xfs_btree_setbuf(cur, level, lbp);
+		cur->bc_ptrs[level] += INT_GET(left->bb_numrecs, ARCH_CONVERT);
+	}
+	/*
+	 * If we joined with the right neighbor and there's a level above
+	 * us, increment the cursor at that level.
+	 */
+	else if (level + 1 < cur->bc_nlevels &&
+		 (error = xfs_alloc_increment(cur, level + 1, &i)))
+		return error;
+	/*
+	 * Fix up the number of records in the surviving block.
+	 */
+	INT_MOD(left->bb_numrecs, ARCH_CONVERT, INT_GET(right->bb_numrecs, ARCH_CONVERT));
+	/*
+	 * Fix up the right block pointer in the surviving block, and log it.
+	 */
+	left->bb_rightsib = right->bb_rightsib; /* INT_: direct copy */
+	xfs_alloc_log_block(cur->bc_tp, lbp, XFS_BB_NUMRECS | XFS_BB_RIGHTSIB);
+	/*
+	 * If there is a right sibling now, make it point to the
+	 * remaining block.
+	 */
+	if (INT_GET(left->bb_rightsib, ARCH_CONVERT) != NULLAGBLOCK) {
+		xfs_alloc_block_t	*rrblock;
+		xfs_buf_t		*rrbp;
+
+		if ((error = xfs_btree_read_bufs(mp, cur->bc_tp,
+				cur->bc_private.a.agno, INT_GET(left->bb_rightsib, ARCH_CONVERT), 0,
+				&rrbp, XFS_ALLOC_BTREE_REF)))
+			return error;
+		rrblock = XFS_BUF_TO_ALLOC_BLOCK(rrbp);
+		if ((error = xfs_btree_check_sblock(cur, rrblock, level, rrbp)))
+			return error;
+		INT_SET(rrblock->bb_leftsib, ARCH_CONVERT, lbno);
+		xfs_alloc_log_block(cur->bc_tp, rrbp, XFS_BB_LEFTSIB);
+	}
+	/*
+	 * Free the deleting block by putting it on the freelist.
+	 */
+	if ((error = xfs_alloc_put_freelist(cur->bc_tp, cur->bc_private.a.agbp,
+			NULL, rbno)))
+		return error;
+	/*
+	 * Since blocks move to the free list without the coordination
+	 * used in xfs_bmap_finish, we can't allow block to be available
+	 * for reallocation and non-transaction writing (user data)
+	 * until we know that the transaction that moved it to the free
+	 * list is permanently on disk. We track the blocks by declaring
+	 * these blocks as "busy"; the busy list is maintained on a
+	 * per-ag basis and each transaction records which entries
+	 * should be removed when the iclog commits to disk. If a
+	 * busy block is allocated, the iclog is pushed up to the
+	 * LSN that freed the block.
+	 */
+	xfs_alloc_mark_busy(cur->bc_tp,
+		INT_GET(agf->agf_seqno, ARCH_CONVERT), bno, 1);
+
+	xfs_trans_agbtree_delta(cur->bc_tp, -1);
+	/*
+	 * Adjust the current level's cursor so that we're left referring
+	 * to the right node, after we're done.
+	 * If this leaves the ptr value 0 our caller will fix it up.
+	 */
+	if (level > 0)
+		cur->bc_ptrs[level]--;
+	/*
+	 * Return value means the next level up has something to do.
+	 */
+	*stat = 2;
+	return 0;
+
+error0:
+	xfs_btree_del_cursor(tcur, XFS_BTREE_ERROR);
+	return error;
+}
+
+/*
+ * Insert one record/level.  Return information to the caller
+ * allowing the next level up to proceed if necessary.
+ */
+STATIC int				/* error */
+xfs_alloc_insrec(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			level,	/* level to insert record at */
+	xfs_agblock_t		*bnop,	/* i/o: block number inserted */
+	xfs_alloc_rec_t		*recp,	/* i/o: record data inserted */
+	xfs_btree_cur_t		**curp,	/* output: new cursor replacing cur */
+	int			*stat)	/* output: success/failure */
+{
+	xfs_agf_t		*agf;	/* allocation group freelist header */
+	xfs_alloc_block_t	*block;	/* btree block record/key lives in */
+	xfs_buf_t		*bp;	/* buffer for block */
+	int			error;	/* error return value */
+	int			i;	/* loop index */
+	xfs_alloc_key_t		key;	/* key value being inserted */
+	xfs_alloc_key_t		*kp;	/* pointer to btree keys */
+	xfs_agblock_t		nbno;	/* block number of allocated block */
+	xfs_btree_cur_t		*ncur;	/* new cursor to be used at next lvl */
+	xfs_alloc_key_t		nkey;	/* new key value, from split */
+	xfs_alloc_rec_t		nrec;	/* new record value, for caller */
+	int			optr;	/* old ptr value */
+	xfs_alloc_ptr_t		*pp;	/* pointer to btree addresses */
+	int			ptr;	/* index in btree block for this rec */
+	xfs_alloc_rec_t		*rp;	/* pointer to btree records */
+
+	ASSERT(INT_GET(recp->ar_blockcount, ARCH_CONVERT) > 0);
+	/*
+	 * If we made it to the root level, allocate a new root block
+	 * and we're done.
+	 */
+	if (level >= cur->bc_nlevels) {
+		XFS_STATS_INC(xs_abt_insrec);
+		if ((error = xfs_alloc_newroot(cur, &i)))
+			return error;
+		*bnop = NULLAGBLOCK;
+		*stat = i;
+		return 0;
+	}
+	/*
+	 * Make a key out of the record data to be inserted, and save it.
+	 */
+	key.ar_startblock = recp->ar_startblock; /* INT_: direct copy */
+	key.ar_blockcount = recp->ar_blockcount; /* INT_: direct copy */
+	optr = ptr = cur->bc_ptrs[level];
+	/*
+	 * If we're off the left edge, return failure.
+	 */
+	if (ptr == 0) {
+		*stat = 0;
+		return 0;
+	}
+	XFS_STATS_INC(xs_abt_insrec);
+	/*
+	 * Get pointers to the btree buffer and block.
+	 */
+	bp = cur->bc_bufs[level];
+	block = XFS_BUF_TO_ALLOC_BLOCK(bp);
+#ifdef DEBUG
+	if ((error = xfs_btree_check_sblock(cur, block, level, bp)))
+		return error;
+	/*
+	 * Check that the new entry is being inserted in the right place.
+	 */
+	if (ptr <= INT_GET(block->bb_numrecs, ARCH_CONVERT)) {
+		if (level == 0) {
+			rp = XFS_ALLOC_REC_ADDR(block, ptr, cur);
+			xfs_btree_check_rec(cur->bc_btnum, recp, rp);
+		} else {
+			kp = XFS_ALLOC_KEY_ADDR(block, ptr, cur);
+			xfs_btree_check_key(cur->bc_btnum, &key, kp);
+		}
+	}
+#endif
+	nbno = NULLAGBLOCK;
+	ncur = (xfs_btree_cur_t *)0;
+	/*
+	 * If the block is full, we can't insert the new entry until we
+	 * make the block un-full.
+	 */
+	if (INT_GET(block->bb_numrecs, ARCH_CONVERT) == XFS_ALLOC_BLOCK_MAXRECS(level, cur)) {
+		/*
+		 * First, try shifting an entry to the right neighbor.
+		 */
+		if ((error = xfs_alloc_rshift(cur, level, &i)))
+			return error;
+		if (i) {
+			/* nothing */
+		}
+		/*
+		 * Next, try shifting an entry to the left neighbor.
+		 */
+		else {
+			if ((error = xfs_alloc_lshift(cur, level, &i)))
+				return error;
+			if (i)
+				optr = ptr = cur->bc_ptrs[level];
+			else {
+				/*
+				 * Next, try splitting the current block in
+				 * half. If this works we have to re-set our
+				 * variables because we could be in a
+				 * different block now.
+				 */
+				if ((error = xfs_alloc_split(cur, level, &nbno,
+						&nkey, &ncur, &i)))
+					return error;
+				if (i) {
+					bp = cur->bc_bufs[level];
+					block = XFS_BUF_TO_ALLOC_BLOCK(bp);
+#ifdef DEBUG
+					if ((error =
+						xfs_btree_check_sblock(cur,
+							block, level, bp)))
+						return error;
+#endif
+					ptr = cur->bc_ptrs[level];
+					nrec.ar_startblock = nkey.ar_startblock; /* INT_: direct copy */
+					nrec.ar_blockcount = nkey.ar_blockcount; /* INT_: direct copy */
+				}
+				/*
+				 * Otherwise the insert fails.
+				 */
+				else {
+					*stat = 0;
+					return 0;
+				}
+			}
+		}
+	}
+	/*
+	 * At this point we know there's room for our new entry in the block
+	 * we're pointing at.
+	 */
+	if (level > 0) {
+		/*
+		 * It's a non-leaf entry.  Make a hole for the new data
+		 * in the key and ptr regions of the block.
+		 */
+		kp = XFS_ALLOC_KEY_ADDR(block, 1, cur);
+		pp = XFS_ALLOC_PTR_ADDR(block, 1, cur);
+#ifdef DEBUG
+		for (i = INT_GET(block->bb_numrecs, ARCH_CONVERT); i >= ptr; i--) {
+			if ((error = xfs_btree_check_sptr(cur, INT_GET(pp[i - 1], ARCH_CONVERT), level)))
+				return error;
+		}
+#endif
+		memmove(&kp[ptr], &kp[ptr - 1],
+			(INT_GET(block->bb_numrecs, ARCH_CONVERT) - ptr + 1) * sizeof(*kp)); /* INT_: copy */
+		memmove(&pp[ptr], &pp[ptr - 1],
+			(INT_GET(block->bb_numrecs, ARCH_CONVERT) - ptr + 1) * sizeof(*pp)); /* INT_: copy */
+#ifdef DEBUG
+		if ((error = xfs_btree_check_sptr(cur, *bnop, level)))
+			return error;
+#endif
+		/*
+		 * Now stuff the new data in, bump numrecs and log the new data.
+		 */
+		kp[ptr - 1] = key;
+		INT_SET(pp[ptr - 1], ARCH_CONVERT, *bnop);
+		INT_MOD(block->bb_numrecs, ARCH_CONVERT, +1);
+		xfs_alloc_log_keys(cur, bp, ptr, INT_GET(block->bb_numrecs, ARCH_CONVERT));
+		xfs_alloc_log_ptrs(cur, bp, ptr, INT_GET(block->bb_numrecs, ARCH_CONVERT));
+#ifdef DEBUG
+		if (ptr < INT_GET(block->bb_numrecs, ARCH_CONVERT))
+			xfs_btree_check_key(cur->bc_btnum, kp + ptr - 1,
+				kp + ptr);
+#endif
+	} else {
+		/*
+		 * It's a leaf entry.  Make a hole for the new record.
+		 */
+		rp = XFS_ALLOC_REC_ADDR(block, 1, cur);
+		memmove(&rp[ptr], &rp[ptr - 1],
+			(INT_GET(block->bb_numrecs, ARCH_CONVERT) - ptr + 1) * sizeof(*rp));
+		/*
+		 * Now stuff the new record in, bump numrecs
+		 * and log the new data.
+		 */
+		rp[ptr - 1] = *recp; /* INT_: struct copy */
+		INT_MOD(block->bb_numrecs, ARCH_CONVERT, +1);
+		xfs_alloc_log_recs(cur, bp, ptr, INT_GET(block->bb_numrecs, ARCH_CONVERT));
+#ifdef DEBUG
+		if (ptr < INT_GET(block->bb_numrecs, ARCH_CONVERT))
+			xfs_btree_check_rec(cur->bc_btnum, rp + ptr - 1,
+				rp + ptr);
+#endif
+	}
+	/*
+	 * Log the new number of records in the btree header.
+	 */
+	xfs_alloc_log_block(cur->bc_tp, bp, XFS_BB_NUMRECS);
+	/*
+	 * If we inserted at the start of a block, update the parents' keys.
+	 */
+	if (optr == 1 && (error = xfs_alloc_updkey(cur, &key, level + 1)))
+		return error;
+	/*
+	 * Look to see if the longest extent in the allocation group
+	 * needs to be updated.
+	 */
+
+	agf = XFS_BUF_TO_AGF(cur->bc_private.a.agbp);
+	if (level == 0 &&
+	    cur->bc_btnum == XFS_BTNUM_CNT &&
+	    INT_GET(block->bb_rightsib, ARCH_CONVERT) == NULLAGBLOCK &&
+	    INT_GET(recp->ar_blockcount, ARCH_CONVERT) > INT_GET(agf->agf_longest, ARCH_CONVERT)) {
+		/*
+		 * If this is a leaf in the by-size btree and there
+		 * is no right sibling block and this block is bigger
+		 * than the previous longest block, update it.
+		 */
+		INT_COPY(agf->agf_longest, recp->ar_blockcount, ARCH_CONVERT);
+		cur->bc_mp->m_perag[INT_GET(agf->agf_seqno, ARCH_CONVERT)].pagf_longest
+			= INT_GET(recp->ar_blockcount, ARCH_CONVERT);
+		xfs_alloc_log_agf(cur->bc_tp, cur->bc_private.a.agbp,
+			XFS_AGF_LONGEST);
+	}
+	/*
+	 * Return the new block number, if any.
+	 * If there is one, give back a record value and a cursor too.
+	 */
+	*bnop = nbno;
+	if (nbno != NULLAGBLOCK) {
+		*recp = nrec; /* INT_: struct copy */
+		*curp = ncur; /* INT_: struct copy */
+	}
+	*stat = 1;
+	return 0;
+}
+
+/*
+ * Log header fields from a btree block.
+ */
+STATIC void
+xfs_alloc_log_block(
+	xfs_trans_t		*tp,	/* transaction pointer */
+	xfs_buf_t		*bp,	/* buffer containing btree block */
+	int			fields)	/* mask of fields: XFS_BB_... */
+{
+	int			first;	/* first byte offset logged */
+	int			last;	/* last byte offset logged */
+	static const short	offsets[] = {	/* table of offsets */
+		offsetof(xfs_alloc_block_t, bb_magic),
+		offsetof(xfs_alloc_block_t, bb_level),
+		offsetof(xfs_alloc_block_t, bb_numrecs),
+		offsetof(xfs_alloc_block_t, bb_leftsib),
+		offsetof(xfs_alloc_block_t, bb_rightsib),
+		sizeof(xfs_alloc_block_t)
+	};
+
+	xfs_btree_offsets(fields, offsets, XFS_BB_NUM_BITS, &first, &last);
+	xfs_trans_log_buf(tp, bp, first, last);
+}
+
+/*
+ * Log keys from a btree block (nonleaf).
+ */
+STATIC void
+xfs_alloc_log_keys(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	xfs_buf_t		*bp,	/* buffer containing btree block */
+	int			kfirst,	/* index of first key to log */
+	int			klast)	/* index of last key to log */
+{
+	xfs_alloc_block_t	*block;	/* btree block to log from */
+	int			first;	/* first byte offset logged */
+	xfs_alloc_key_t		*kp;	/* key pointer in btree block */
+	int			last;	/* last byte offset logged */
+
+	block = XFS_BUF_TO_ALLOC_BLOCK(bp);
+	kp = XFS_ALLOC_KEY_ADDR(block, 1, cur);
+	first = (int)((xfs_caddr_t)&kp[kfirst - 1] - (xfs_caddr_t)block);
+	last = (int)(((xfs_caddr_t)&kp[klast] - 1) - (xfs_caddr_t)block);
+	xfs_trans_log_buf(cur->bc_tp, bp, first, last);
+}
+
+/*
+ * Log block pointer fields from a btree block (nonleaf).
+ */
+STATIC void
+xfs_alloc_log_ptrs(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	xfs_buf_t		*bp,	/* buffer containing btree block */
+	int			pfirst,	/* index of first pointer to log */
+	int			plast)	/* index of last pointer to log */
+{
+	xfs_alloc_block_t	*block;	/* btree block to log from */
+	int			first;	/* first byte offset logged */
+	int			last;	/* last byte offset logged */
+	xfs_alloc_ptr_t		*pp;	/* block-pointer pointer in btree blk */
+
+	block = XFS_BUF_TO_ALLOC_BLOCK(bp);
+	pp = XFS_ALLOC_PTR_ADDR(block, 1, cur);
+	first = (int)((xfs_caddr_t)&pp[pfirst - 1] - (xfs_caddr_t)block);
+	last = (int)(((xfs_caddr_t)&pp[plast] - 1) - (xfs_caddr_t)block);
+	xfs_trans_log_buf(cur->bc_tp, bp, first, last);
+}
+
+/*
+ * Log records from a btree block (leaf).
+ */
+STATIC void
+xfs_alloc_log_recs(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	xfs_buf_t		*bp,	/* buffer containing btree block */
+	int			rfirst,	/* index of first record to log */
+	int			rlast)	/* index of last record to log */
+{
+	xfs_alloc_block_t	*block;	/* btree block to log from */
+	int			first;	/* first byte offset logged */
+	int			last;	/* last byte offset logged */
+	xfs_alloc_rec_t		*rp;	/* record pointer for btree block */
+
+
+	block = XFS_BUF_TO_ALLOC_BLOCK(bp);
+	rp = XFS_ALLOC_REC_ADDR(block, 1, cur);
+#ifdef DEBUG
+	{
+		xfs_agf_t	*agf;
+		xfs_alloc_rec_t	*p;
+
+		agf = XFS_BUF_TO_AGF(cur->bc_private.a.agbp);
+		for (p = &rp[rfirst - 1]; p <= &rp[rlast - 1]; p++)
+			ASSERT(INT_GET(p->ar_startblock, ARCH_CONVERT) + INT_GET(p->ar_blockcount, ARCH_CONVERT) <=
+			       INT_GET(agf->agf_length, ARCH_CONVERT));
+	}
+#endif
+	first = (int)((xfs_caddr_t)&rp[rfirst - 1] - (xfs_caddr_t)block);
+	last = (int)(((xfs_caddr_t)&rp[rlast] - 1) - (xfs_caddr_t)block);
+	xfs_trans_log_buf(cur->bc_tp, bp, first, last);
+}
+
+/*
+ * Lookup the record.  The cursor is made to point to it, based on dir.
+ * Return 0 if can't find any such record, 1 for success.
+ */
+STATIC int				/* error */
+xfs_alloc_lookup(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	xfs_lookup_t		dir,	/* <=, ==, or >= */
+	int			*stat)	/* success/failure */
+{
+	xfs_agblock_t		agbno;	/* a.g. relative btree block number */
+	xfs_agnumber_t		agno;	/* allocation group number */
+	xfs_alloc_block_t	*block=NULL;	/* current btree block */
+	int			diff;	/* difference for the current key */
+	int			error;	/* error return value */
+	int			keyno=0;	/* current key number */
+	int			level;	/* level in the btree */
+	xfs_mount_t		*mp;	/* file system mount point */
+
+	XFS_STATS_INC(xs_abt_lookup);
+	/*
+	 * Get the allocation group header, and the root block number.
+	 */
+	mp = cur->bc_mp;
+
+	{
+		xfs_agf_t	*agf;	/* a.g. freespace header */
+
+		agf = XFS_BUF_TO_AGF(cur->bc_private.a.agbp);
+		agno = INT_GET(agf->agf_seqno, ARCH_CONVERT);
+		agbno = INT_GET(agf->agf_roots[cur->bc_btnum], ARCH_CONVERT);
+	}
+	/*
+	 * Iterate over each level in the btree, starting at the root.
+	 * For each level above the leaves, find the key we need, based
+	 * on the lookup record, then follow the corresponding block
+	 * pointer down to the next level.
+	 */
+	for (level = cur->bc_nlevels - 1, diff = 1; level >= 0; level--) {
+		xfs_buf_t	*bp;	/* buffer pointer for btree block */
+		xfs_daddr_t	d;	/* disk address of btree block */
+
+		/*
+		 * Get the disk address we're looking for.
+		 */
+		d = XFS_AGB_TO_DADDR(mp, agno, agbno);
+		/*
+		 * If the old buffer at this level is for a different block,
+		 * throw it away, otherwise just use it.
+		 */
+		bp = cur->bc_bufs[level];
+		if (bp && XFS_BUF_ADDR(bp) != d)
+			bp = (xfs_buf_t *)0;
+		if (!bp) {
+			/*
+			 * Need to get a new buffer.  Read it, then
+			 * set it in the cursor, releasing the old one.
+			 */
+			if ((error = xfs_btree_read_bufs(mp, cur->bc_tp, agno,
+					agbno, 0, &bp, XFS_ALLOC_BTREE_REF)))
+				return error;
+			xfs_btree_setbuf(cur, level, bp);
+			/*
+			 * Point to the btree block, now that we have the buffer
+			 */
+			block = XFS_BUF_TO_ALLOC_BLOCK(bp);
+			if ((error = xfs_btree_check_sblock(cur, block, level,
+					bp)))
+				return error;
+		} else
+			block = XFS_BUF_TO_ALLOC_BLOCK(bp);
+		/*
+		 * If we already had a key match at a higher level, we know
+		 * we need to use the first entry in this block.
+		 */
+		if (diff == 0)
+			keyno = 1;
+		/*
+		 * Otherwise we need to search this block.  Do a binary search.
+		 */
+		else {
+			int		high;	/* high entry number */
+			xfs_alloc_key_t	*kkbase=NULL;/* base of keys in block */
+			xfs_alloc_rec_t	*krbase=NULL;/* base of records in block */
+			int		low;	/* low entry number */
+
+			/*
+			 * Get a pointer to keys or records.
+			 */
+			if (level > 0)
+				kkbase = XFS_ALLOC_KEY_ADDR(block, 1, cur);
+			else
+				krbase = XFS_ALLOC_REC_ADDR(block, 1, cur);
+			/*
+			 * Set low and high entry numbers, 1-based.
+			 */
+			low = 1;
+			if (!(high = INT_GET(block->bb_numrecs, ARCH_CONVERT))) {
+				/*
+				 * If the block is empty, the tree must
+				 * be an empty leaf.
+				 */
+				ASSERT(level == 0 && cur->bc_nlevels == 1);
+				cur->bc_ptrs[0] = dir != XFS_LOOKUP_LE;
+				*stat = 0;
+				return 0;
+			}
+			/*
+			 * Binary search the block.
+			 */
+			while (low <= high) {
+				xfs_extlen_t	blockcount;	/* key value */
+				xfs_agblock_t	startblock;	/* key value */
+
+				XFS_STATS_INC(xs_abt_compare);
+				/*
+				 * keyno is average of low and high.
+				 */
+				keyno = (low + high) >> 1;
+				/*
+				 * Get startblock & blockcount.
+				 */
+				if (level > 0) {
+					xfs_alloc_key_t	*kkp;
+
+					kkp = kkbase + keyno - 1;
+					startblock = INT_GET(kkp->ar_startblock, ARCH_CONVERT);
+					blockcount = INT_GET(kkp->ar_blockcount, ARCH_CONVERT);
+				} else {
+					xfs_alloc_rec_t	*krp;
+
+					krp = krbase + keyno - 1;
+					startblock = INT_GET(krp->ar_startblock, ARCH_CONVERT);
+					blockcount = INT_GET(krp->ar_blockcount, ARCH_CONVERT);
+				}
+				/*
+				 * Compute difference to get next direction.
+				 */
+				if (cur->bc_btnum == XFS_BTNUM_BNO)
+					diff = (int)startblock -
+					       (int)cur->bc_rec.a.ar_startblock;
+				else if (!(diff = (int)blockcount -
+					    (int)cur->bc_rec.a.ar_blockcount))
+					diff = (int)startblock -
+					    (int)cur->bc_rec.a.ar_startblock;
+				/*
+				 * Less than, move right.
+				 */
+				if (diff < 0)
+					low = keyno + 1;
+				/*
+				 * Greater than, move left.
+				 */
+				else if (diff > 0)
+					high = keyno - 1;
+				/*
+				 * Equal, we're done.
+				 */
+				else
+					break;
+			}
+		}
+		/*
+		 * If there are more levels, set up for the next level
+		 * by getting the block number and filling in the cursor.
+		 */
+		if (level > 0) {
+			/*
+			 * If we moved left, need the previous key number,
+			 * unless there isn't one.
+			 */
+			if (diff > 0 && --keyno < 1)
+				keyno = 1;
+			agbno = INT_GET(*XFS_ALLOC_PTR_ADDR(block, keyno, cur), ARCH_CONVERT);
+#ifdef DEBUG
+			if ((error = xfs_btree_check_sptr(cur, agbno, level)))
+				return error;
+#endif
+			cur->bc_ptrs[level] = keyno;
+		}
+	}
+	/*
+	 * Done with the search.
+	 * See if we need to adjust the results.
+	 */
+	if (dir != XFS_LOOKUP_LE && diff < 0) {
+		keyno++;
+		/*
+		 * If ge search and we went off the end of the block, but it's
+		 * not the last block, we're in the wrong block.
+		 */
+		if (dir == XFS_LOOKUP_GE &&
+		    keyno > INT_GET(block->bb_numrecs, ARCH_CONVERT) &&
+		    INT_GET(block->bb_rightsib, ARCH_CONVERT) != NULLAGBLOCK) {
+			int	i;
+
+			cur->bc_ptrs[0] = keyno;
+			if ((error = xfs_alloc_increment(cur, 0, &i)))
+				return error;
+			XFS_WANT_CORRUPTED_RETURN(i == 1);
+			*stat = 1;
+			return 0;
+		}
+	}
+	else if (dir == XFS_LOOKUP_LE && diff > 0)
+		keyno--;
+	cur->bc_ptrs[0] = keyno;
+	/*
+	 * Return if we succeeded or not.
+	 */
+	if (keyno == 0 || keyno > INT_GET(block->bb_numrecs, ARCH_CONVERT))
+		*stat = 0;
+	else
+		*stat = ((dir != XFS_LOOKUP_EQ) || (diff == 0));
+	return 0;
+}
+
+/*
+ * Move 1 record left from cur/level if possible.
+ * Update cur to reflect the new path.
+ */
+STATIC int				/* error */
+xfs_alloc_lshift(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			level,	/* level to shift record on */
+	int			*stat)	/* success/failure */
+{
+	int			error;	/* error return value */
+#ifdef DEBUG
+	int			i;	/* loop index */
+#endif
+	xfs_alloc_key_t		key;	/* key value for leaf level upward */
+	xfs_buf_t		*lbp;	/* buffer for left neighbor block */
+	xfs_alloc_block_t	*left;	/* left neighbor btree block */
+	int			nrec;	/* new number of left block entries */
+	xfs_buf_t		*rbp;	/* buffer for right (current) block */
+	xfs_alloc_block_t	*right;	/* right (current) btree block */
+	xfs_alloc_key_t		*rkp=NULL;	/* key pointer for right block */
+	xfs_alloc_ptr_t		*rpp=NULL;	/* address pointer for right block */
+	xfs_alloc_rec_t		*rrp=NULL;	/* record pointer for right block */
+
+	/*
+	 * Set up variables for this block as "right".
+	 */
+	rbp = cur->bc_bufs[level];
+	right = XFS_BUF_TO_ALLOC_BLOCK(rbp);
+#ifdef DEBUG
+	if ((error = xfs_btree_check_sblock(cur, right, level, rbp)))
+		return error;
+#endif
+	/*
+	 * If we've got no left sibling then we can't shift an entry left.
+	 */
+	if (INT_GET(right->bb_leftsib, ARCH_CONVERT) == NULLAGBLOCK) {
+		*stat = 0;
+		return 0;
+	}
+	/*
+	 * If the cursor entry is the one that would be moved, don't
+	 * do it... it's too complicated.
+	 */
+	if (cur->bc_ptrs[level] <= 1) {
+		*stat = 0;
+		return 0;
+	}
+	/*
+	 * Set up the left neighbor as "left".
+	 */
+	if ((error = xfs_btree_read_bufs(cur->bc_mp, cur->bc_tp,
+			cur->bc_private.a.agno, INT_GET(right->bb_leftsib, ARCH_CONVERT), 0, &lbp,
+			XFS_ALLOC_BTREE_REF)))
+		return error;
+	left = XFS_BUF_TO_ALLOC_BLOCK(lbp);
+	if ((error = xfs_btree_check_sblock(cur, left, level, lbp)))
+		return error;
+	/*
+	 * If it's full, it can't take another entry.
+	 */
+	if (INT_GET(left->bb_numrecs, ARCH_CONVERT) == XFS_ALLOC_BLOCK_MAXRECS(level, cur)) {
+		*stat = 0;
+		return 0;
+	}
+	nrec = INT_GET(left->bb_numrecs, ARCH_CONVERT) + 1;
+	/*
+	 * If non-leaf, copy a key and a ptr to the left block.
+	 */
+	if (level > 0) {
+		xfs_alloc_key_t	*lkp;	/* key pointer for left block */
+		xfs_alloc_ptr_t	*lpp;	/* address pointer for left block */
+
+		lkp = XFS_ALLOC_KEY_ADDR(left, nrec, cur);
+		rkp = XFS_ALLOC_KEY_ADDR(right, 1, cur);
+		*lkp = *rkp;
+		xfs_alloc_log_keys(cur, lbp, nrec, nrec);
+		lpp = XFS_ALLOC_PTR_ADDR(left, nrec, cur);
+		rpp = XFS_ALLOC_PTR_ADDR(right, 1, cur);
+#ifdef DEBUG
+		if ((error = xfs_btree_check_sptr(cur, INT_GET(*rpp, ARCH_CONVERT), level)))
+			return error;
+#endif
+		*lpp = *rpp; /* INT_: copy */
+		xfs_alloc_log_ptrs(cur, lbp, nrec, nrec);
+		xfs_btree_check_key(cur->bc_btnum, lkp - 1, lkp);
+	}
+	/*
+	 * If leaf, copy a record to the left block.
+	 */
+	else {
+		xfs_alloc_rec_t	*lrp;	/* record pointer for left block */
+
+		lrp = XFS_ALLOC_REC_ADDR(left, nrec, cur);
+		rrp = XFS_ALLOC_REC_ADDR(right, 1, cur);
+		*lrp = *rrp;
+		xfs_alloc_log_recs(cur, lbp, nrec, nrec);
+		xfs_btree_check_rec(cur->bc_btnum, lrp - 1, lrp);
+	}
+	/*
+	 * Bump and log left's numrecs, decrement and log right's numrecs.
+	 */
+	INT_MOD(left->bb_numrecs, ARCH_CONVERT, +1);
+	xfs_alloc_log_block(cur->bc_tp, lbp, XFS_BB_NUMRECS);
+	INT_MOD(right->bb_numrecs, ARCH_CONVERT, -1);
+	xfs_alloc_log_block(cur->bc_tp, rbp, XFS_BB_NUMRECS);
+	/*
+	 * Slide the contents of right down one entry.
+	 */
+	if (level > 0) {
+#ifdef DEBUG
+		for (i = 0; i < INT_GET(right->bb_numrecs, ARCH_CONVERT); i++) {
+			if ((error = xfs_btree_check_sptr(cur, INT_GET(rpp[i + 1], ARCH_CONVERT),
+					level)))
+				return error;
+		}
+#endif
+		memmove(rkp, rkp + 1, INT_GET(right->bb_numrecs, ARCH_CONVERT) * sizeof(*rkp));
+		memmove(rpp, rpp + 1, INT_GET(right->bb_numrecs, ARCH_CONVERT) * sizeof(*rpp));
+		xfs_alloc_log_keys(cur, rbp, 1, INT_GET(right->bb_numrecs, ARCH_CONVERT));
+		xfs_alloc_log_ptrs(cur, rbp, 1, INT_GET(right->bb_numrecs, ARCH_CONVERT));
+	} else {
+		memmove(rrp, rrp + 1, INT_GET(right->bb_numrecs, ARCH_CONVERT) * sizeof(*rrp));
+		xfs_alloc_log_recs(cur, rbp, 1, INT_GET(right->bb_numrecs, ARCH_CONVERT));
+		key.ar_startblock = rrp->ar_startblock; /* INT_: direct copy */
+		key.ar_blockcount = rrp->ar_blockcount; /* INT_: direct copy */
+		rkp = &key;
+	}
+	/*
+	 * Update the parent key values of right.
+	 */
+	if ((error = xfs_alloc_updkey(cur, rkp, level + 1)))
+		return error;
+	/*
+	 * Slide the cursor value left one.
+	 */
+	cur->bc_ptrs[level]--;
+	*stat = 1;
+	return 0;
+}
+
+/*
+ * Allocate a new root block, fill it in.
+ */
+STATIC int				/* error */
+xfs_alloc_newroot(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			*stat)	/* success/failure */
+{
+	int			error;	/* error return value */
+	xfs_agblock_t		lbno;	/* left block number */
+	xfs_buf_t		*lbp;	/* left btree buffer */
+	xfs_alloc_block_t	*left;	/* left btree block */
+	xfs_mount_t		*mp;	/* mount structure */
+	xfs_agblock_t		nbno;	/* new block number */
+	xfs_buf_t		*nbp;	/* new (root) buffer */
+	xfs_alloc_block_t	*new;	/* new (root) btree block */
+	int			nptr;	/* new value for key index, 1 or 2 */
+	xfs_agblock_t		rbno;	/* right block number */
+	xfs_buf_t		*rbp;	/* right btree buffer */
+	xfs_alloc_block_t	*right;	/* right btree block */
+
+	mp = cur->bc_mp;
+
+	ASSERT(cur->bc_nlevels < XFS_AG_MAXLEVELS(mp));
+	/*
+	 * Get a buffer from the freelist blocks, for the new root.
+	 */
+	if ((error = xfs_alloc_get_freelist(cur->bc_tp, cur->bc_private.a.agbp,
+			&nbno)))
+		return error;
+	/*
+	 * None available, we fail.
+	 */
+	if (nbno == NULLAGBLOCK) {
+		*stat = 0;
+		return 0;
+	}
+	xfs_trans_agbtree_delta(cur->bc_tp, 1);
+	nbp = xfs_btree_get_bufs(mp, cur->bc_tp, cur->bc_private.a.agno, nbno,
+		0);
+	new = XFS_BUF_TO_ALLOC_BLOCK(nbp);
+	/*
+	 * Set the root data in the a.g. freespace structure.
+	 */
+	{
+		xfs_agf_t	*agf;	/* a.g. freespace header */
+		xfs_agnumber_t	seqno;
+
+		agf = XFS_BUF_TO_AGF(cur->bc_private.a.agbp);
+		INT_SET(agf->agf_roots[cur->bc_btnum], ARCH_CONVERT, nbno);
+		INT_MOD(agf->agf_levels[cur->bc_btnum], ARCH_CONVERT, 1);
+		seqno = INT_GET(agf->agf_seqno, ARCH_CONVERT);
+		mp->m_perag[seqno].pagf_levels[cur->bc_btnum]++;
+		xfs_alloc_log_agf(cur->bc_tp, cur->bc_private.a.agbp,
+			XFS_AGF_ROOTS | XFS_AGF_LEVELS);
+	}
+	/*
+	 * At the previous root level there are now two blocks: the old
+	 * root, and the new block generated when it was split.
+	 * We don't know which one the cursor is pointing at, so we
+	 * set up variables "left" and "right" for each case.
+	 */
+	lbp = cur->bc_bufs[cur->bc_nlevels - 1];
+	left = XFS_BUF_TO_ALLOC_BLOCK(lbp);
+#ifdef DEBUG
+	if ((error = xfs_btree_check_sblock(cur, left, cur->bc_nlevels - 1, lbp)))
+		return error;
+#endif
+	if (INT_GET(left->bb_rightsib, ARCH_CONVERT) != NULLAGBLOCK) {
+		/*
+		 * Our block is left, pick up the right block.
+		 */
+		lbno = XFS_DADDR_TO_AGBNO(mp, XFS_BUF_ADDR(lbp));
+		rbno = INT_GET(left->bb_rightsib, ARCH_CONVERT);
+		if ((error = xfs_btree_read_bufs(mp, cur->bc_tp,
+				cur->bc_private.a.agno, rbno, 0, &rbp,
+				XFS_ALLOC_BTREE_REF)))
+			return error;
+		right = XFS_BUF_TO_ALLOC_BLOCK(rbp);
+		if ((error = xfs_btree_check_sblock(cur, right,
+				cur->bc_nlevels - 1, rbp)))
+			return error;
+		nptr = 1;
+	} else {
+		/*
+		 * Our block is right, pick up the left block.
+		 */
+		rbp = lbp;
+		right = left;
+		rbno = XFS_DADDR_TO_AGBNO(mp, XFS_BUF_ADDR(rbp));
+		lbno = INT_GET(right->bb_leftsib, ARCH_CONVERT);
+		if ((error = xfs_btree_read_bufs(mp, cur->bc_tp,
+				cur->bc_private.a.agno, lbno, 0, &lbp,
+				XFS_ALLOC_BTREE_REF)))
+			return error;
+		left = XFS_BUF_TO_ALLOC_BLOCK(lbp);
+		if ((error = xfs_btree_check_sblock(cur, left,
+				cur->bc_nlevels - 1, lbp)))
+			return error;
+		nptr = 2;
+	}
+	/*
+	 * Fill in the new block's btree header and log it.
+	 */
+	INT_SET(new->bb_magic, ARCH_CONVERT, xfs_magics[cur->bc_btnum]);
+	INT_SET(new->bb_level, ARCH_CONVERT, (__uint16_t)cur->bc_nlevels);
+	INT_SET(new->bb_numrecs, ARCH_CONVERT, 2);
+	INT_SET(new->bb_leftsib, ARCH_CONVERT, NULLAGBLOCK);
+	INT_SET(new->bb_rightsib, ARCH_CONVERT, NULLAGBLOCK);
+	xfs_alloc_log_block(cur->bc_tp, nbp, XFS_BB_ALL_BITS);
+	ASSERT(lbno != NULLAGBLOCK && rbno != NULLAGBLOCK);
+	/*
+	 * Fill in the key data in the new root.
+	 */
+	{
+		xfs_alloc_key_t		*kp;	/* btree key pointer */
+
+		kp = XFS_ALLOC_KEY_ADDR(new, 1, cur);
+		if (INT_GET(left->bb_level, ARCH_CONVERT) > 0) {
+			kp[0] = *XFS_ALLOC_KEY_ADDR(left, 1, cur); /* INT_: structure copy */
+			kp[1] = *XFS_ALLOC_KEY_ADDR(right, 1, cur);/* INT_: structure copy */
+		} else {
+			xfs_alloc_rec_t	*rp;	/* btree record pointer */
+
+			rp = XFS_ALLOC_REC_ADDR(left, 1, cur);
+			kp[0].ar_startblock = rp->ar_startblock; /* INT_: direct copy */
+			kp[0].ar_blockcount = rp->ar_blockcount; /* INT_: direct copy */
+			rp = XFS_ALLOC_REC_ADDR(right, 1, cur);
+			kp[1].ar_startblock = rp->ar_startblock; /* INT_: direct copy */
+			kp[1].ar_blockcount = rp->ar_blockcount; /* INT_: direct copy */
+		}
+	}
+	xfs_alloc_log_keys(cur, nbp, 1, 2);
+	/*
+	 * Fill in the pointer data in the new root.
+	 */
+	{
+		xfs_alloc_ptr_t		*pp;	/* btree address pointer */
+
+		pp = XFS_ALLOC_PTR_ADDR(new, 1, cur);
+		INT_SET(pp[0], ARCH_CONVERT, lbno);
+		INT_SET(pp[1], ARCH_CONVERT, rbno);
+	}
+	xfs_alloc_log_ptrs(cur, nbp, 1, 2);
+	/*
+	 * Fix up the cursor.
+	 */
+	xfs_btree_setbuf(cur, cur->bc_nlevels, nbp);
+	cur->bc_ptrs[cur->bc_nlevels] = nptr;
+	cur->bc_nlevels++;
+	*stat = 1;
+	return 0;
+}
+
+/*
+ * Move 1 record right from cur/level if possible.
+ * Update cur to reflect the new path.
+ */
+STATIC int				/* error */
+xfs_alloc_rshift(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			level,	/* level to shift record on */
+	int			*stat)	/* success/failure */
+{
+	int			error;	/* error return value */
+	int			i;	/* loop index */
+	xfs_alloc_key_t		key;	/* key value for leaf level upward */
+	xfs_buf_t		*lbp;	/* buffer for left (current) block */
+	xfs_alloc_block_t	*left;	/* left (current) btree block */
+	xfs_buf_t		*rbp;	/* buffer for right neighbor block */
+	xfs_alloc_block_t	*right;	/* right neighbor btree block */
+	xfs_alloc_key_t		*rkp;	/* key pointer for right block */
+	xfs_btree_cur_t		*tcur;	/* temporary cursor */
+
+	/*
+	 * Set up variables for this block as "left".
+	 */
+	lbp = cur->bc_bufs[level];
+	left = XFS_BUF_TO_ALLOC_BLOCK(lbp);
+#ifdef DEBUG
+	if ((error = xfs_btree_check_sblock(cur, left, level, lbp)))
+		return error;
+#endif
+	/*
+	 * If we've got no right sibling then we can't shift an entry right.
+	 */
+	if (INT_GET(left->bb_rightsib, ARCH_CONVERT) == NULLAGBLOCK) {
+		*stat = 0;
+		return 0;
+	}
+	/*
+	 * If the cursor entry is the one that would be moved, don't
+	 * do it... it's too complicated.
+	 */
+	if (cur->bc_ptrs[level] >= INT_GET(left->bb_numrecs, ARCH_CONVERT)) {
+		*stat = 0;
+		return 0;
+	}
+	/*
+	 * Set up the right neighbor as "right".
+	 */
+	if ((error = xfs_btree_read_bufs(cur->bc_mp, cur->bc_tp,
+			cur->bc_private.a.agno, INT_GET(left->bb_rightsib, ARCH_CONVERT), 0, &rbp,
+			XFS_ALLOC_BTREE_REF)))
+		return error;
+	right = XFS_BUF_TO_ALLOC_BLOCK(rbp);
+	if ((error = xfs_btree_check_sblock(cur, right, level, rbp)))
+		return error;
+	/*
+	 * If it's full, it can't take another entry.
+	 */
+	if (INT_GET(right->bb_numrecs, ARCH_CONVERT) == XFS_ALLOC_BLOCK_MAXRECS(level, cur)) {
+		*stat = 0;
+		return 0;
+	}
+	/*
+	 * Make a hole at the start of the right neighbor block, then
+	 * copy the last left block entry to the hole.
+	 */
+	if (level > 0) {
+		xfs_alloc_key_t	*lkp;	/* key pointer for left block */
+		xfs_alloc_ptr_t	*lpp;	/* address pointer for left block */
+		xfs_alloc_ptr_t	*rpp;	/* address pointer for right block */
+
+		lkp = XFS_ALLOC_KEY_ADDR(left, INT_GET(left->bb_numrecs, ARCH_CONVERT), cur);
+		lpp = XFS_ALLOC_PTR_ADDR(left, INT_GET(left->bb_numrecs, ARCH_CONVERT), cur);
+		rkp = XFS_ALLOC_KEY_ADDR(right, 1, cur);
+		rpp = XFS_ALLOC_PTR_ADDR(right, 1, cur);
+#ifdef DEBUG
+		for (i = INT_GET(right->bb_numrecs, ARCH_CONVERT) - 1; i >= 0; i--) {
+			if ((error = xfs_btree_check_sptr(cur, INT_GET(rpp[i], ARCH_CONVERT), level)))
+				return error;
+		}
+#endif
+		memmove(rkp + 1, rkp, INT_GET(right->bb_numrecs, ARCH_CONVERT) * sizeof(*rkp));
+		memmove(rpp + 1, rpp, INT_GET(right->bb_numrecs, ARCH_CONVERT) * sizeof(*rpp));
+#ifdef DEBUG
+		if ((error = xfs_btree_check_sptr(cur, INT_GET(*lpp, ARCH_CONVERT), level)))
+			return error;
+#endif
+		*rkp = *lkp; /* INT_: copy */
+		*rpp = *lpp; /* INT_: copy */
+		xfs_alloc_log_keys(cur, rbp, 1, INT_GET(right->bb_numrecs, ARCH_CONVERT) + 1);
+		xfs_alloc_log_ptrs(cur, rbp, 1, INT_GET(right->bb_numrecs, ARCH_CONVERT) + 1);
+		xfs_btree_check_key(cur->bc_btnum, rkp, rkp + 1);
+	} else {
+		xfs_alloc_rec_t	*lrp;	/* record pointer for left block */
+		xfs_alloc_rec_t	*rrp;	/* record pointer for right block */
+
+		lrp = XFS_ALLOC_REC_ADDR(left, INT_GET(left->bb_numrecs, ARCH_CONVERT), cur);
+		rrp = XFS_ALLOC_REC_ADDR(right, 1, cur);
+		memmove(rrp + 1, rrp, INT_GET(right->bb_numrecs, ARCH_CONVERT) * sizeof(*rrp));
+		*rrp = *lrp;
+		xfs_alloc_log_recs(cur, rbp, 1, INT_GET(right->bb_numrecs, ARCH_CONVERT) + 1);
+		key.ar_startblock = rrp->ar_startblock; /* INT_: direct copy */
+		key.ar_blockcount = rrp->ar_blockcount; /* INT_: direct copy */
+		rkp = &key;
+		xfs_btree_check_rec(cur->bc_btnum, rrp, rrp + 1);
+	}
+	/*
+	 * Decrement and log left's numrecs, bump and log right's numrecs.
+	 */
+	INT_MOD(left->bb_numrecs, ARCH_CONVERT, -1);
+	xfs_alloc_log_block(cur->bc_tp, lbp, XFS_BB_NUMRECS);
+	INT_MOD(right->bb_numrecs, ARCH_CONVERT, +1);
+	xfs_alloc_log_block(cur->bc_tp, rbp, XFS_BB_NUMRECS);
+	/*
+	 * Using a temporary cursor, update the parent key values of the
+	 * block on the right.
+	 */
+	if ((error = xfs_btree_dup_cursor(cur, &tcur)))
+		return error;
+	i = xfs_btree_lastrec(tcur, level);
+	XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+	if ((error = xfs_alloc_increment(tcur, level, &i)) ||
+	    (error = xfs_alloc_updkey(tcur, rkp, level + 1)))
+		goto error0;
+	xfs_btree_del_cursor(tcur, XFS_BTREE_NOERROR);
+	*stat = 1;
+	return 0;
+error0:
+	xfs_btree_del_cursor(tcur, XFS_BTREE_ERROR);
+	return error;
+}
+
+/*
+ * Split cur/level block in half.
+ * Return new block number and its first record (to be inserted into parent).
+ */
+STATIC int				/* error */
+xfs_alloc_split(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			level,	/* level to split */
+	xfs_agblock_t		*bnop,	/* output: block number allocated */
+	xfs_alloc_key_t		*keyp,	/* output: first key of new block */
+	xfs_btree_cur_t		**curp,	/* output: new cursor */
+	int			*stat)	/* success/failure */
+{
+	int			error;	/* error return value */
+	int			i;	/* loop index/record number */
+	xfs_agblock_t		lbno;	/* left (current) block number */
+	xfs_buf_t		*lbp;	/* buffer for left block */
+	xfs_alloc_block_t	*left;	/* left (current) btree block */
+	xfs_agblock_t		rbno;	/* right (new) block number */
+	xfs_buf_t		*rbp;	/* buffer for right block */
+	xfs_alloc_block_t	*right;	/* right (new) btree block */
+
+	/*
+	 * Allocate the new block from the freelist.
+	 * If we can't do it, we're toast.  Give up.
+	 */
+	if ((error = xfs_alloc_get_freelist(cur->bc_tp, cur->bc_private.a.agbp,
+			&rbno)))
+		return error;
+	if (rbno == NULLAGBLOCK) {
+		*stat = 0;
+		return 0;
+	}
+	xfs_trans_agbtree_delta(cur->bc_tp, 1);
+	rbp = xfs_btree_get_bufs(cur->bc_mp, cur->bc_tp, cur->bc_private.a.agno,
+		rbno, 0);
+	/*
+	 * Set up the new block as "right".
+	 */
+	right = XFS_BUF_TO_ALLOC_BLOCK(rbp);
+	/*
+	 * "Left" is the current (according to the cursor) block.
+	 */
+	lbp = cur->bc_bufs[level];
+	left = XFS_BUF_TO_ALLOC_BLOCK(lbp);
+#ifdef DEBUG
+	if ((error = xfs_btree_check_sblock(cur, left, level, lbp)))
+		return error;
+#endif
+	/*
+	 * Fill in the btree header for the new block.
+	 */
+	INT_SET(right->bb_magic, ARCH_CONVERT, xfs_magics[cur->bc_btnum]);
+	right->bb_level = left->bb_level; /* INT_: direct copy */
+	INT_SET(right->bb_numrecs, ARCH_CONVERT, (__uint16_t)(INT_GET(left->bb_numrecs, ARCH_CONVERT) / 2));
+	/*
+	 * Make sure that if there's an odd number of entries now, that
+	 * each new block will have the same number of entries.
+	 */
+	if ((INT_GET(left->bb_numrecs, ARCH_CONVERT) & 1) &&
+	    cur->bc_ptrs[level] <= INT_GET(right->bb_numrecs, ARCH_CONVERT) + 1)
+		INT_MOD(right->bb_numrecs, ARCH_CONVERT, +1);
+	i = INT_GET(left->bb_numrecs, ARCH_CONVERT) - INT_GET(right->bb_numrecs, ARCH_CONVERT) + 1;
+	/*
+	 * For non-leaf blocks, copy keys and addresses over to the new block.
+	 */
+	if (level > 0) {
+		xfs_alloc_key_t	*lkp;	/* left btree key pointer */
+		xfs_alloc_ptr_t	*lpp;	/* left btree address pointer */
+		xfs_alloc_key_t	*rkp;	/* right btree key pointer */
+		xfs_alloc_ptr_t	*rpp;	/* right btree address pointer */
+
+		lkp = XFS_ALLOC_KEY_ADDR(left, i, cur);
+		lpp = XFS_ALLOC_PTR_ADDR(left, i, cur);
+		rkp = XFS_ALLOC_KEY_ADDR(right, 1, cur);
+		rpp = XFS_ALLOC_PTR_ADDR(right, 1, cur);
+#ifdef DEBUG
+		for (i = 0; i < INT_GET(right->bb_numrecs, ARCH_CONVERT); i++) {
+			if ((error = xfs_btree_check_sptr(cur, INT_GET(lpp[i], ARCH_CONVERT), level)))
+				return error;
+		}
+#endif
+		memcpy(rkp, lkp, INT_GET(right->bb_numrecs, ARCH_CONVERT) * sizeof(*rkp)); /* INT_: copy */
+		memcpy(rpp, lpp, INT_GET(right->bb_numrecs, ARCH_CONVERT) * sizeof(*rpp)); /* INT_: copy */
+		xfs_alloc_log_keys(cur, rbp, 1, INT_GET(right->bb_numrecs, ARCH_CONVERT));
+		xfs_alloc_log_ptrs(cur, rbp, 1, INT_GET(right->bb_numrecs, ARCH_CONVERT));
+		*keyp = *rkp;
+	}
+	/*
+	 * For leaf blocks, copy records over to the new block.
+	 */
+	else {
+		xfs_alloc_rec_t	*lrp;	/* left btree record pointer */
+		xfs_alloc_rec_t	*rrp;	/* right btree record pointer */
+
+		lrp = XFS_ALLOC_REC_ADDR(left, i, cur);
+		rrp = XFS_ALLOC_REC_ADDR(right, 1, cur);
+		memcpy(rrp, lrp, INT_GET(right->bb_numrecs, ARCH_CONVERT) * sizeof(*rrp));
+		xfs_alloc_log_recs(cur, rbp, 1, INT_GET(right->bb_numrecs, ARCH_CONVERT));
+		keyp->ar_startblock = rrp->ar_startblock; /* INT_: direct copy */
+		keyp->ar_blockcount = rrp->ar_blockcount; /* INT_: direct copy */
+	}
+	/*
+	 * Find the left block number by looking in the buffer.
+	 * Adjust numrecs, sibling pointers.
+	 */
+	lbno = XFS_DADDR_TO_AGBNO(cur->bc_mp, XFS_BUF_ADDR(lbp));
+	INT_MOD(left->bb_numrecs, ARCH_CONVERT, -(INT_GET(right->bb_numrecs, ARCH_CONVERT)));
+	right->bb_rightsib = left->bb_rightsib; /* INT_: direct copy */
+	INT_SET(left->bb_rightsib, ARCH_CONVERT, rbno);
+	INT_SET(right->bb_leftsib, ARCH_CONVERT, lbno);
+	xfs_alloc_log_block(cur->bc_tp, rbp, XFS_BB_ALL_BITS);
+	xfs_alloc_log_block(cur->bc_tp, lbp, XFS_BB_NUMRECS | XFS_BB_RIGHTSIB);
+	/*
+	 * If there's a block to the new block's right, make that block
+	 * point back to right instead of to left.
+	 */
+	if (INT_GET(right->bb_rightsib, ARCH_CONVERT) != NULLAGBLOCK) {
+		xfs_alloc_block_t	*rrblock;	/* rr btree block */
+		xfs_buf_t		*rrbp;		/* buffer for rrblock */
+
+		if ((error = xfs_btree_read_bufs(cur->bc_mp, cur->bc_tp,
+				cur->bc_private.a.agno, INT_GET(right->bb_rightsib, ARCH_CONVERT), 0,
+				&rrbp, XFS_ALLOC_BTREE_REF)))
+			return error;
+		rrblock = XFS_BUF_TO_ALLOC_BLOCK(rrbp);
+		if ((error = xfs_btree_check_sblock(cur, rrblock, level, rrbp)))
+			return error;
+		INT_SET(rrblock->bb_leftsib, ARCH_CONVERT, rbno);
+		xfs_alloc_log_block(cur->bc_tp, rrbp, XFS_BB_LEFTSIB);
+	}
+	/*
+	 * If the cursor is really in the right block, move it there.
+	 * If it's just pointing past the last entry in left, then we'll
+	 * insert there, so don't change anything in that case.
+	 */
+	if (cur->bc_ptrs[level] > INT_GET(left->bb_numrecs, ARCH_CONVERT) + 1) {
+		xfs_btree_setbuf(cur, level, rbp);
+		cur->bc_ptrs[level] -= INT_GET(left->bb_numrecs, ARCH_CONVERT);
+	}
+	/*
+	 * If there are more levels, we'll need another cursor which refers to
+	 * the right block, no matter where this cursor was.
+	 */
+	if (level + 1 < cur->bc_nlevels) {
+		if ((error = xfs_btree_dup_cursor(cur, curp)))
+			return error;
+		(*curp)->bc_ptrs[level + 1]++;
+	}
+	*bnop = rbno;
+	*stat = 1;
+	return 0;
+}
+
+/*
+ * Update keys at all levels from here to the root along the cursor's path.
+ */
+STATIC int				/* error */
+xfs_alloc_updkey(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	xfs_alloc_key_t		*keyp,	/* new key value to update to */
+	int			level)	/* starting level for update */
+{
+	int			ptr;	/* index of key in block */
+
+	/*
+	 * Go up the tree from this level toward the root.
+	 * At each level, update the key value to the value input.
+	 * Stop when we reach a level where the cursor isn't pointing
+	 * at the first entry in the block.
+	 */
+	for (ptr = 1; ptr == 1 && level < cur->bc_nlevels; level++) {
+		xfs_alloc_block_t	*block;	/* btree block */
+		xfs_buf_t		*bp;	/* buffer for block */
+#ifdef DEBUG
+		int			error;	/* error return value */
+#endif
+		xfs_alloc_key_t		*kp;	/* ptr to btree block keys */
+
+		bp = cur->bc_bufs[level];
+		block = XFS_BUF_TO_ALLOC_BLOCK(bp);
+#ifdef DEBUG
+		if ((error = xfs_btree_check_sblock(cur, block, level, bp)))
+			return error;
+#endif
+		ptr = cur->bc_ptrs[level];
+		kp = XFS_ALLOC_KEY_ADDR(block, ptr, cur);
+		*kp = *keyp;
+		xfs_alloc_log_keys(cur, bp, ptr, ptr);
+	}
+	return 0;
+}
+
+/*
+ * Externally visible routines.
+ */
+
+/*
+ * Decrement cursor by one record at the level.
+ * For nonzero levels the leaf-ward information is untouched.
+ */
+int					/* error */
+xfs_alloc_decrement(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			level,	/* level in btree, 0 is leaf */
+	int			*stat)	/* success/failure */
+{
+	xfs_alloc_block_t	*block;	/* btree block */
+	int			error;	/* error return value */
+	int			lev;	/* btree level */
+
+	ASSERT(level < cur->bc_nlevels);
+	/*
+	 * Read-ahead to the left at this level.
+	 */
+	xfs_btree_readahead(cur, level, XFS_BTCUR_LEFTRA);
+	/*
+	 * Decrement the ptr at this level.  If we're still in the block
+	 * then we're done.
+	 */
+	if (--cur->bc_ptrs[level] > 0) {
+		*stat = 1;
+		return 0;
+	}
+	/*
+	 * Get a pointer to the btree block.
+	 */
+	block = XFS_BUF_TO_ALLOC_BLOCK(cur->bc_bufs[level]);
+#ifdef DEBUG
+	if ((error = xfs_btree_check_sblock(cur, block, level,
+			cur->bc_bufs[level])))
+		return error;
+#endif
+	/*
+	 * If we just went off the left edge of the tree, return failure.
+	 */
+	if (INT_GET(block->bb_leftsib, ARCH_CONVERT) == NULLAGBLOCK) {
+		*stat = 0;
+		return 0;
+	}
+	/*
+	 * March up the tree decrementing pointers.
+	 * Stop when we don't go off the left edge of a block.
+	 */
+	for (lev = level + 1; lev < cur->bc_nlevels; lev++) {
+		if (--cur->bc_ptrs[lev] > 0)
+			break;
+		/*
+		 * Read-ahead the left block, we're going to read it
+		 * in the next loop.
+		 */
+		xfs_btree_readahead(cur, lev, XFS_BTCUR_LEFTRA);
+	}
+	/*
+	 * If we went off the root then we are seriously confused.
+	 */
+	ASSERT(lev < cur->bc_nlevels);
+	/*
+	 * Now walk back down the tree, fixing up the cursor's buffer
+	 * pointers and key numbers.
+	 */
+	for (block = XFS_BUF_TO_ALLOC_BLOCK(cur->bc_bufs[lev]); lev > level; ) {
+		xfs_agblock_t	agbno;	/* block number of btree block */
+		xfs_buf_t	*bp;	/* buffer pointer for block */
+
+		agbno = INT_GET(*XFS_ALLOC_PTR_ADDR(block, cur->bc_ptrs[lev], cur), ARCH_CONVERT);
+		if ((error = xfs_btree_read_bufs(cur->bc_mp, cur->bc_tp,
+				cur->bc_private.a.agno, agbno, 0, &bp,
+				XFS_ALLOC_BTREE_REF)))
+			return error;
+		lev--;
+		xfs_btree_setbuf(cur, lev, bp);
+		block = XFS_BUF_TO_ALLOC_BLOCK(bp);
+		if ((error = xfs_btree_check_sblock(cur, block, lev, bp)))
+			return error;
+		cur->bc_ptrs[lev] = INT_GET(block->bb_numrecs, ARCH_CONVERT);
+	}
+	*stat = 1;
+	return 0;
+}
+
+/*
+ * Delete the record pointed to by cur.
+ * The cursor refers to the place where the record was (could be inserted)
+ * when the operation returns.
+ */
+int					/* error */
+xfs_alloc_delete(
+	xfs_btree_cur_t	*cur,		/* btree cursor */
+	int		*stat)		/* success/failure */
+{
+	int		error;		/* error return value */
+	int		i;		/* result code */
+	int		level;		/* btree level */
+
+	/*
+	 * Go up the tree, starting at leaf level.
+	 * If 2 is returned then a join was done; go to the next level.
+	 * Otherwise we are done.
+	 */
+	for (level = 0, i = 2; i == 2; level++) {
+		if ((error = xfs_alloc_delrec(cur, level, &i)))
+			return error;
+	}
+	if (i == 0) {
+		for (level = 1; level < cur->bc_nlevels; level++) {
+			if (cur->bc_ptrs[level] == 0) {
+				if ((error = xfs_alloc_decrement(cur, level, &i)))
+					return error;
+				break;
+			}
+		}
+	}
+	*stat = i;
+	return 0;
+}
+
+/*
+ * Get the data from the pointed-to record.
+ */
+int					/* error */
+xfs_alloc_get_rec(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	xfs_agblock_t		*bno,	/* output: starting block of extent */
+	xfs_extlen_t		*len,	/* output: length of extent */
+	int			*stat)	/* output: success/failure */
+{
+	xfs_alloc_block_t	*block;	/* btree block */
+#ifdef DEBUG
+	int			error;	/* error return value */
+#endif
+	int			ptr;	/* record number */
+
+	ptr = cur->bc_ptrs[0];
+	block = XFS_BUF_TO_ALLOC_BLOCK(cur->bc_bufs[0]);
+#ifdef DEBUG
+	if ((error = xfs_btree_check_sblock(cur, block, 0, cur->bc_bufs[0])))
+		return error;
+#endif
+	/*
+	 * Off the right end or left end, return failure.
+	 */
+	if (ptr > INT_GET(block->bb_numrecs, ARCH_CONVERT) || ptr <= 0) {
+		*stat = 0;
+		return 0;
+	}
+	/*
+	 * Point to the record and extract its data.
+	 */
+	{
+		xfs_alloc_rec_t		*rec;	/* record data */
+
+		rec = XFS_ALLOC_REC_ADDR(block, ptr, cur);
+		*bno = INT_GET(rec->ar_startblock, ARCH_CONVERT);
+		*len = INT_GET(rec->ar_blockcount, ARCH_CONVERT);
+	}
+	*stat = 1;
+	return 0;
+}
+
+/*
+ * Increment cursor by one record at the level.
+ * For nonzero levels the leaf-ward information is untouched.
+ */
+int					/* error */
+xfs_alloc_increment(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			level,	/* level in btree, 0 is leaf */
+	int			*stat)	/* success/failure */
+{
+	xfs_alloc_block_t	*block;	/* btree block */
+	xfs_buf_t		*bp;	/* tree block buffer */
+	int			error;	/* error return value */
+	int			lev;	/* btree level */
+
+	ASSERT(level < cur->bc_nlevels);
+	/*
+	 * Read-ahead to the right at this level.
+	 */
+	xfs_btree_readahead(cur, level, XFS_BTCUR_RIGHTRA);
+	/*
+	 * Get a pointer to the btree block.
+	 */
+	bp = cur->bc_bufs[level];
+	block = XFS_BUF_TO_ALLOC_BLOCK(bp);
+#ifdef DEBUG
+	if ((error = xfs_btree_check_sblock(cur, block, level, bp)))
+		return error;
+#endif
+	/*
+	 * Increment the ptr at this level.  If we're still in the block
+	 * then we're done.
+	 */
+	if (++cur->bc_ptrs[level] <= INT_GET(block->bb_numrecs, ARCH_CONVERT)) {
+		*stat = 1;
+		return 0;
+	}
+	/*
+	 * If we just went off the right edge of the tree, return failure.
+	 */
+	if (INT_GET(block->bb_rightsib, ARCH_CONVERT) == NULLAGBLOCK) {
+		*stat = 0;
+		return 0;
+	}
+	/*
+	 * March up the tree incrementing pointers.
+	 * Stop when we don't go off the right edge of a block.
+	 */
+	for (lev = level + 1; lev < cur->bc_nlevels; lev++) {
+		bp = cur->bc_bufs[lev];
+		block = XFS_BUF_TO_ALLOC_BLOCK(bp);
+#ifdef DEBUG
+		if ((error = xfs_btree_check_sblock(cur, block, lev, bp)))
+			return error;
+#endif
+		if (++cur->bc_ptrs[lev] <= INT_GET(block->bb_numrecs, ARCH_CONVERT))
+			break;
+		/*
+		 * Read-ahead the right block, we're going to read it
+		 * in the next loop.
+		 */
+		xfs_btree_readahead(cur, lev, XFS_BTCUR_RIGHTRA);
+	}
+	/*
+	 * If we went off the root then we are seriously confused.
+	 */
+	ASSERT(lev < cur->bc_nlevels);
+	/*
+	 * Now walk back down the tree, fixing up the cursor's buffer
+	 * pointers and key numbers.
+	 */
+	for (bp = cur->bc_bufs[lev], block = XFS_BUF_TO_ALLOC_BLOCK(bp);
+	     lev > level; ) {
+		xfs_agblock_t	agbno;	/* block number of btree block */
+
+		agbno = INT_GET(*XFS_ALLOC_PTR_ADDR(block, cur->bc_ptrs[lev], cur), ARCH_CONVERT);
+		if ((error = xfs_btree_read_bufs(cur->bc_mp, cur->bc_tp,
+				cur->bc_private.a.agno, agbno, 0, &bp,
+				XFS_ALLOC_BTREE_REF)))
+			return error;
+		lev--;
+		xfs_btree_setbuf(cur, lev, bp);
+		block = XFS_BUF_TO_ALLOC_BLOCK(bp);
+		if ((error = xfs_btree_check_sblock(cur, block, lev, bp)))
+			return error;
+		cur->bc_ptrs[lev] = 1;
+	}
+	*stat = 1;
+	return 0;
+}
+
+/*
+ * Insert the current record at the point referenced by cur.
+ * The cursor may be inconsistent on return if splits have been done.
+ */
+int					/* error */
+xfs_alloc_insert(
+	xfs_btree_cur_t	*cur,		/* btree cursor */
+	int		*stat)		/* success/failure */
+{
+	int		error;		/* error return value */
+	int		i;		/* result value, 0 for failure */
+	int		level;		/* current level number in btree */
+	xfs_agblock_t	nbno;		/* new block number (split result) */
+	xfs_btree_cur_t	*ncur;		/* new cursor (split result) */
+	xfs_alloc_rec_t	nrec;		/* record being inserted this level */
+	xfs_btree_cur_t	*pcur;		/* previous level's cursor */
+
+	level = 0;
+	nbno = NULLAGBLOCK;
+	INT_SET(nrec.ar_startblock, ARCH_CONVERT, cur->bc_rec.a.ar_startblock);
+	INT_SET(nrec.ar_blockcount, ARCH_CONVERT, cur->bc_rec.a.ar_blockcount);
+	ncur = (xfs_btree_cur_t *)0;
+	pcur = cur;
+	/*
+	 * Loop going up the tree, starting at the leaf level.
+	 * Stop when we don't get a split block, that must mean that
+	 * the insert is finished with this level.
+	 */
+	do {
+		/*
+		 * Insert nrec/nbno into this level of the tree.
+		 * Note if we fail, nbno will be null.
+		 */
+		if ((error = xfs_alloc_insrec(pcur, level++, &nbno, &nrec, &ncur,
+				&i))) {
+			if (pcur != cur)
+				xfs_btree_del_cursor(pcur, XFS_BTREE_ERROR);
+			return error;
+		}
+		/*
+		 * See if the cursor we just used is trash.
+		 * Can't trash the caller's cursor, but otherwise we should
+		 * if ncur is a new cursor or we're about to be done.
+		 */
+		if (pcur != cur && (ncur || nbno == NULLAGBLOCK)) {
+			cur->bc_nlevels = pcur->bc_nlevels;
+			xfs_btree_del_cursor(pcur, XFS_BTREE_NOERROR);
+		}
+		/*
+		 * If we got a new cursor, switch to it.
+		 */
+		if (ncur) {
+			pcur = ncur;
+			ncur = (xfs_btree_cur_t *)0;
+		}
+	} while (nbno != NULLAGBLOCK);
+	*stat = i;
+	return 0;
+}
+
+/*
+ * Lookup the record equal to [bno, len] in the btree given by cur.
+ */
+int					/* error */
+xfs_alloc_lookup_eq(
+	xfs_btree_cur_t	*cur,		/* btree cursor */
+	xfs_agblock_t	bno,		/* starting block of extent */
+	xfs_extlen_t	len,		/* length of extent */
+	int		*stat)		/* success/failure */
+{
+	cur->bc_rec.a.ar_startblock = bno;
+	cur->bc_rec.a.ar_blockcount = len;
+	return xfs_alloc_lookup(cur, XFS_LOOKUP_EQ, stat);
+}
+
+/*
+ * Lookup the first record greater than or equal to [bno, len]
+ * in the btree given by cur.
+ */
+int					/* error */
+xfs_alloc_lookup_ge(
+	xfs_btree_cur_t	*cur,		/* btree cursor */
+	xfs_agblock_t	bno,		/* starting block of extent */
+	xfs_extlen_t	len,		/* length of extent */
+	int		*stat)		/* success/failure */
+{
+	cur->bc_rec.a.ar_startblock = bno;
+	cur->bc_rec.a.ar_blockcount = len;
+	return xfs_alloc_lookup(cur, XFS_LOOKUP_GE, stat);
+}
+
+/*
+ * Lookup the first record less than or equal to [bno, len]
+ * in the btree given by cur.
+ */
+int					/* error */
+xfs_alloc_lookup_le(
+	xfs_btree_cur_t	*cur,		/* btree cursor */
+	xfs_agblock_t	bno,		/* starting block of extent */
+	xfs_extlen_t	len,		/* length of extent */
+	int		*stat)		/* success/failure */
+{
+	cur->bc_rec.a.ar_startblock = bno;
+	cur->bc_rec.a.ar_blockcount = len;
+	return xfs_alloc_lookup(cur, XFS_LOOKUP_LE, stat);
+}
+
+/*
+ * Update the record referred to by cur, to the value given by [bno, len].
+ * This either works (return 0) or gets an EFSCORRUPTED error.
+ */
+int					/* error */
+xfs_alloc_update(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	xfs_agblock_t		bno,	/* starting block of extent */
+	xfs_extlen_t		len)	/* length of extent */
+{
+	xfs_alloc_block_t	*block;	/* btree block to update */
+	int			error;	/* error return value */
+	int			ptr;	/* current record number (updating) */
+
+	ASSERT(len > 0);
+	/*
+	 * Pick up the a.g. freelist struct and the current block.
+	 */
+	block = XFS_BUF_TO_ALLOC_BLOCK(cur->bc_bufs[0]);
+#ifdef DEBUG
+	if ((error = xfs_btree_check_sblock(cur, block, 0, cur->bc_bufs[0])))
+		return error;
+#endif
+	/*
+	 * Get the address of the rec to be updated.
+	 */
+	ptr = cur->bc_ptrs[0];
+	{
+		xfs_alloc_rec_t		*rp;	/* pointer to updated record */
+
+		rp = XFS_ALLOC_REC_ADDR(block, ptr, cur);
+		/*
+		 * Fill in the new contents and log them.
+		 */
+		INT_SET(rp->ar_startblock, ARCH_CONVERT, bno);
+		INT_SET(rp->ar_blockcount, ARCH_CONVERT, len);
+		xfs_alloc_log_recs(cur, cur->bc_bufs[0], ptr, ptr);
+	}
+	/*
+	 * If it's the by-size btree and it's the last leaf block and
+	 * it's the last record... then update the size of the longest
+	 * extent in the a.g., which we cache in the a.g. freelist header.
+	 */
+	if (cur->bc_btnum == XFS_BTNUM_CNT &&
+	    INT_GET(block->bb_rightsib, ARCH_CONVERT) == NULLAGBLOCK &&
+	    ptr == INT_GET(block->bb_numrecs, ARCH_CONVERT)) {
+		xfs_agf_t	*agf;	/* a.g. freespace header */
+		xfs_agnumber_t	seqno;
+
+		agf = XFS_BUF_TO_AGF(cur->bc_private.a.agbp);
+		seqno = INT_GET(agf->agf_seqno, ARCH_CONVERT);
+		cur->bc_mp->m_perag[seqno].pagf_longest = len;
+		INT_SET(agf->agf_longest, ARCH_CONVERT, len);
+		xfs_alloc_log_agf(cur->bc_tp, cur->bc_private.a.agbp,
+			XFS_AGF_LONGEST);
+	}
+	/*
+	 * Updating first record in leaf. Pass new key value up to our parent.
+	 */
+	if (ptr == 1) {
+		xfs_alloc_key_t	key;	/* key containing [bno, len] */
+
+		INT_SET(key.ar_startblock, ARCH_CONVERT, bno);
+		INT_SET(key.ar_blockcount, ARCH_CONVERT, len);
+		if ((error = xfs_alloc_updkey(cur, &key, 1)))
+			return error;
+	}
+	return 0;
+}
diff --git a/fs/xfs/xfs_alloc_btree.h b/fs/xfs/xfs_alloc_btree.h
new file mode 100644
index 00000000000000..ed5161a572ef68
--- /dev/null
+++ b/fs/xfs/xfs_alloc_btree.h
@@ -0,0 +1,257 @@
+/*
+ * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_ALLOC_BTREE_H__
+#define	__XFS_ALLOC_BTREE_H__
+
+/*
+ * Freespace on-disk structures
+ */
+
+struct xfs_buf;
+struct xfs_btree_cur;
+struct xfs_btree_sblock;
+struct xfs_mount;
+
+/*
+ * There are two on-disk btrees, one sorted by blockno and one sorted
+ * by blockcount and blockno.  All blocks look the same to make the code
+ * simpler; if we have time later, we'll make the optimizations.
+ */
+#define	XFS_ABTB_MAGIC	0x41425442	/* 'ABTB' for bno tree */
+#define	XFS_ABTC_MAGIC	0x41425443	/* 'ABTC' for cnt tree */
+
+/*
+ * Data record/key structure
+ */
+typedef struct xfs_alloc_rec
+{
+	xfs_agblock_t	ar_startblock;	/* starting block number */
+	xfs_extlen_t	ar_blockcount;	/* count of free blocks */
+} xfs_alloc_rec_t, xfs_alloc_key_t;
+
+typedef xfs_agblock_t xfs_alloc_ptr_t;	/* btree pointer type */
+					/* btree block header type */
+typedef	struct xfs_btree_sblock xfs_alloc_block_t;
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BUF_TO_ALLOC_BLOCK)
+xfs_alloc_block_t *xfs_buf_to_alloc_block(struct xfs_buf *bp);
+#define	XFS_BUF_TO_ALLOC_BLOCK(bp)	xfs_buf_to_alloc_block(bp)
+#else
+#define	XFS_BUF_TO_ALLOC_BLOCK(bp) ((xfs_alloc_block_t *)(XFS_BUF_PTR(bp)))
+#endif
+
+/*
+ * Real block structures have a size equal to the disk block size.
+ */
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ALLOC_BLOCK_SIZE)
+int xfs_alloc_block_size(int lev, struct xfs_btree_cur *cur);
+#define	XFS_ALLOC_BLOCK_SIZE(lev,cur)	xfs_alloc_block_size(lev,cur)
+#else
+#define	XFS_ALLOC_BLOCK_SIZE(lev,cur)	(1 << (cur)->bc_blocklog)
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ALLOC_BLOCK_MAXRECS)
+int xfs_alloc_block_maxrecs(int lev, struct xfs_btree_cur *cur);
+#define	XFS_ALLOC_BLOCK_MAXRECS(lev,cur)	xfs_alloc_block_maxrecs(lev,cur)
+#else
+#define	XFS_ALLOC_BLOCK_MAXRECS(lev,cur)	\
+	((cur)->bc_mp->m_alloc_mxr[lev != 0])
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ALLOC_BLOCK_MINRECS)
+int xfs_alloc_block_minrecs(int lev, struct xfs_btree_cur *cur);
+#define	XFS_ALLOC_BLOCK_MINRECS(lev,cur)	xfs_alloc_block_minrecs(lev,cur)
+#else
+#define	XFS_ALLOC_BLOCK_MINRECS(lev,cur)	\
+	((cur)->bc_mp->m_alloc_mnr[lev != 0])
+#endif
+
+/*
+ * Minimum and maximum blocksize and sectorsize.
+ * The blocksize upper limit is pretty much arbitrary.
+ * The sectorsize upper limit is due to sizeof(sb_sectsize).
+ */
+#define XFS_MIN_BLOCKSIZE_LOG	9	/* i.e. 512 bytes */
+#define XFS_MAX_BLOCKSIZE_LOG	16	/* i.e. 65536 bytes */
+#define XFS_MIN_BLOCKSIZE	(1 << XFS_MIN_BLOCKSIZE_LOG)
+#define XFS_MAX_BLOCKSIZE	(1 << XFS_MAX_BLOCKSIZE_LOG)
+#define XFS_MIN_SECTORSIZE_LOG	9	/* i.e. 512 bytes */
+#define XFS_MAX_SECTORSIZE_LOG	15	/* i.e. 32768 bytes */
+#define XFS_MIN_SECTORSIZE	(1 << XFS_MIN_SECTORSIZE_LOG)
+#define XFS_MAX_SECTORSIZE	(1 << XFS_MAX_SECTORSIZE_LOG)
+
+/*
+ * Block numbers in the AG:
+ * SB is sector 0, AGF is sector 1, AGI is sector 2, AGFL is sector 3.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BNO_BLOCK)
+xfs_agblock_t xfs_bno_block(struct xfs_mount *mp);
+#define	XFS_BNO_BLOCK(mp)	xfs_bno_block(mp)
+#else
+#define	XFS_BNO_BLOCK(mp)	((xfs_agblock_t)(XFS_AGFL_BLOCK(mp) + 1))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_CNT_BLOCK)
+xfs_agblock_t xfs_cnt_block(struct xfs_mount *mp);
+#define	XFS_CNT_BLOCK(mp)	xfs_cnt_block(mp)
+#else
+#define	XFS_CNT_BLOCK(mp)	((xfs_agblock_t)(XFS_BNO_BLOCK(mp) + 1))
+#endif
+
+/*
+ * Record, key, and pointer address macros for btree blocks.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ALLOC_REC_ADDR)
+xfs_alloc_rec_t *xfs_alloc_rec_addr(xfs_alloc_block_t *bb, int i,
+				    struct xfs_btree_cur *cur);
+#define	XFS_ALLOC_REC_ADDR(bb,i,cur)	xfs_alloc_rec_addr(bb,i,cur)
+#else
+#define	XFS_ALLOC_REC_ADDR(bb,i,cur)	\
+	XFS_BTREE_REC_ADDR(XFS_ALLOC_BLOCK_SIZE(0,cur), xfs_alloc, bb, i, \
+		XFS_ALLOC_BLOCK_MAXRECS(0, cur))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ALLOC_KEY_ADDR)
+xfs_alloc_key_t *xfs_alloc_key_addr(xfs_alloc_block_t *bb, int i,
+				    struct xfs_btree_cur *cur);
+#define	XFS_ALLOC_KEY_ADDR(bb,i,cur)	xfs_alloc_key_addr(bb,i,cur)
+#else
+#define	XFS_ALLOC_KEY_ADDR(bb,i,cur)	\
+	XFS_BTREE_KEY_ADDR(XFS_ALLOC_BLOCK_SIZE(1,cur), xfs_alloc, bb, i, \
+		XFS_ALLOC_BLOCK_MAXRECS(1, cur))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ALLOC_PTR_ADDR)
+xfs_alloc_ptr_t *xfs_alloc_ptr_addr(xfs_alloc_block_t *bb, int i,
+				    struct xfs_btree_cur *cur);
+#define	XFS_ALLOC_PTR_ADDR(bb,i,cur)	xfs_alloc_ptr_addr(bb,i,cur)
+#else
+#define	XFS_ALLOC_PTR_ADDR(bb,i,cur)	\
+	XFS_BTREE_PTR_ADDR(XFS_ALLOC_BLOCK_SIZE(1,cur), xfs_alloc, bb, i, \
+		XFS_ALLOC_BLOCK_MAXRECS(1, cur))
+#endif
+
+/*
+ * Prototypes for externally visible routines.
+ */
+
+/*
+ * Decrement cursor by one record at the level.
+ * For nonzero levels the leaf-ward information is untouched.
+ */
+int					/* error */
+xfs_alloc_decrement(
+	struct xfs_btree_cur	*cur,	/* btree cursor */
+	int			level,	/* level in btree, 0 is leaf */
+	int			*stat);	/* success/failure */
+
+/*
+ * Delete the record pointed to by cur.
+ * The cursor refers to the place where the record was (could be inserted)
+ * when the operation returns.
+ */
+int					/* error */
+xfs_alloc_delete(
+	struct xfs_btree_cur	*cur,	/* btree cursor */
+	int			*stat);	/* success/failure */
+
+/*
+ * Get the data from the pointed-to record.
+ */
+int					/* error */
+xfs_alloc_get_rec(
+	struct xfs_btree_cur	*cur,	/* btree cursor */
+	xfs_agblock_t		*bno,	/* output: starting block of extent */
+	xfs_extlen_t		*len,	/* output: length of extent */
+	int			*stat);	/* output: success/failure */
+
+/*
+ * Increment cursor by one record at the level.
+ * For nonzero levels the leaf-ward information is untouched.
+ */
+int					/* error */
+xfs_alloc_increment(
+	struct xfs_btree_cur	*cur,	/* btree cursor */
+	int			level,	/* level in btree, 0 is leaf */
+	int			*stat);	/* success/failure */
+
+/*
+ * Insert the current record at the point referenced by cur.
+ * The cursor may be inconsistent on return if splits have been done.
+ */
+int					/* error */
+xfs_alloc_insert(
+	struct xfs_btree_cur	*cur,	/* btree cursor */
+	int			*stat);	/* success/failure */
+
+/*
+ * Lookup the record equal to [bno, len] in the btree given by cur.
+ */
+int					/* error */
+xfs_alloc_lookup_eq(
+	struct xfs_btree_cur	*cur,	/* btree cursor */
+	xfs_agblock_t		bno,	/* starting block of extent */
+	xfs_extlen_t		len,	/* length of extent */
+	int			*stat);	/* success/failure */
+
+/*
+ * Lookup the first record greater than or equal to [bno, len]
+ * in the btree given by cur.
+ */
+int					/* error */
+xfs_alloc_lookup_ge(
+	struct xfs_btree_cur	*cur,	/* btree cursor */
+	xfs_agblock_t		bno,	/* starting block of extent */
+	xfs_extlen_t		len,	/* length of extent */
+	int			*stat);	/* success/failure */
+
+/*
+ * Lookup the first record less than or equal to [bno, len]
+ * in the btree given by cur.
+ */
+int					/* error */
+xfs_alloc_lookup_le(
+	struct xfs_btree_cur	*cur,	/* btree cursor */
+	xfs_agblock_t		bno,	/* starting block of extent */
+	xfs_extlen_t		len,	/* length of extent */
+	int			*stat);	/* success/failure */
+
+/*
+ * Update the record referred to by cur, to the value given by [bno, len].
+ * This either works (return 0) or gets an EFSCORRUPTED error.
+ */
+int					/* error */
+xfs_alloc_update(
+	struct xfs_btree_cur	*cur,	/* btree cursor */
+	xfs_agblock_t		bno,	/* starting block of extent */
+	xfs_extlen_t		len);	/* length of extent */
+
+#endif	/* __XFS_ALLOC_BTREE_H__ */
diff --git a/fs/xfs/xfs_arch.h b/fs/xfs/xfs_arch.h
new file mode 100644
index 00000000000000..3c7a90bfb0e31e
--- /dev/null
+++ b/fs/xfs/xfs_arch.h
@@ -0,0 +1,276 @@
+/*
+ * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_ARCH_H__
+#define __XFS_ARCH_H__
+
+#ifndef XFS_BIG_INUMS
+# error XFS_BIG_INUMS must be defined true or false
+#endif
+
+#ifdef __KERNEL__
+
+#include <asm/byteorder.h>
+
+#ifdef __LITTLE_ENDIAN
+# define __BYTE_ORDER	__LITTLE_ENDIAN
+#endif
+#ifdef __BIG_ENDIAN
+# define __BYTE_ORDER	__BIG_ENDIAN
+#endif
+
+#endif	/* __KERNEL__ */
+
+/* do we need conversion? */
+
+#define ARCH_NOCONVERT 1
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+# define ARCH_CONVERT	0
+#else
+# define ARCH_CONVERT	ARCH_NOCONVERT
+#endif
+
+/* generic swapping macros */
+
+#ifndef HAVE_SWABMACROS
+#define INT_SWAP16(type,var) ((typeof(type))(__swab16((__u16)(var))))
+#define INT_SWAP32(type,var) ((typeof(type))(__swab32((__u32)(var))))
+#define INT_SWAP64(type,var) ((typeof(type))(__swab64((__u64)(var))))
+#endif
+
+#define INT_SWAP(type, var) \
+    ((sizeof(type) == 8) ? INT_SWAP64(type,var) : \
+    ((sizeof(type) == 4) ? INT_SWAP32(type,var) : \
+    ((sizeof(type) == 2) ? INT_SWAP16(type,var) : \
+    (var))))
+
+#define INT_SWAP_UNALIGNED_32(from,to) \
+    { \
+	((__u8*)(to))[0] = ((__u8*)(from))[3]; \
+	((__u8*)(to))[1] = ((__u8*)(from))[2]; \
+	((__u8*)(to))[2] = ((__u8*)(from))[1]; \
+	((__u8*)(to))[3] = ((__u8*)(from))[0]; \
+    }
+
+#define INT_SWAP_UNALIGNED_64(from,to) \
+    { \
+	INT_SWAP_UNALIGNED_32( ((__u8*)(from)) + 4, ((__u8*)(to))); \
+	INT_SWAP_UNALIGNED_32( ((__u8*)(from)), ((__u8*)(to)) + 4); \
+    }
+
+/*
+ * get and set integers from potentially unaligned locations
+ */
+
+#define INT_GET_UNALIGNED_16_LE(pointer) \
+   ((__u16)((((__u8*)(pointer))[0]	) | (((__u8*)(pointer))[1] << 8 )))
+#define INT_GET_UNALIGNED_16_BE(pointer) \
+   ((__u16)((((__u8*)(pointer))[0] << 8) | (((__u8*)(pointer))[1])))
+#define INT_SET_UNALIGNED_16_LE(pointer,value) \
+    { \
+	((__u8*)(pointer))[0] = (((value)     ) & 0xff); \
+	((__u8*)(pointer))[1] = (((value) >> 8) & 0xff); \
+    }
+#define INT_SET_UNALIGNED_16_BE(pointer,value) \
+    { \
+	((__u8*)(pointer))[0] = (((value) >> 8) & 0xff); \
+	((__u8*)(pointer))[1] = (((value)     ) & 0xff); \
+    }
+
+#define INT_GET_UNALIGNED_32_LE(pointer) \
+   ((__u32)((((__u8*)(pointer))[0]	) | (((__u8*)(pointer))[1] << 8 ) \
+	   |(((__u8*)(pointer))[2] << 16) | (((__u8*)(pointer))[3] << 24)))
+#define INT_GET_UNALIGNED_32_BE(pointer) \
+   ((__u32)((((__u8*)(pointer))[0] << 24) | (((__u8*)(pointer))[1] << 16) \
+	   |(((__u8*)(pointer))[2] << 8)  | (((__u8*)(pointer))[3]	)))
+
+#define INT_GET_UNALIGNED_64_LE(pointer) \
+   (((__u64)(INT_GET_UNALIGNED_32_LE(((__u8*)(pointer))+4)) << 32 ) \
+   |((__u64)(INT_GET_UNALIGNED_32_LE(((__u8*)(pointer))	 ))	  ))
+#define INT_GET_UNALIGNED_64_BE(pointer) \
+   (((__u64)(INT_GET_UNALIGNED_32_BE(((__u8*)(pointer))	 )) << 32  ) \
+   |((__u64)(INT_GET_UNALIGNED_32_BE(((__u8*)(pointer))+4))	   ))
+
+/*
+ * now pick the right ones for our MACHINE ARCHITECTURE
+ */
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+#define INT_GET_UNALIGNED_16(pointer)	    INT_GET_UNALIGNED_16_LE(pointer)
+#define INT_SET_UNALIGNED_16(pointer,value) INT_SET_UNALIGNED_16_LE(pointer,value)
+#define INT_GET_UNALIGNED_32(pointer)	    INT_GET_UNALIGNED_32_LE(pointer)
+#define INT_GET_UNALIGNED_64(pointer)	    INT_GET_UNALIGNED_64_LE(pointer)
+#else
+#define INT_GET_UNALIGNED_16(pointer)	    INT_GET_UNALIGNED_16_BE(pointer)
+#define INT_SET_UNALIGNED_16(pointer,value) INT_SET_UNALIGNED_16_BE(pointer,value)
+#define INT_GET_UNALIGNED_32(pointer)	    INT_GET_UNALIGNED_32_BE(pointer)
+#define INT_GET_UNALIGNED_64(pointer)	    INT_GET_UNALIGNED_64_BE(pointer)
+#endif
+
+/* define generic INT_ macros */
+
+#define INT_GET(reference,arch) \
+    (((arch) == ARCH_NOCONVERT) \
+	? \
+	    (reference) \
+	: \
+	    INT_SWAP((reference),(reference)) \
+    )
+
+/* does not return a value */
+#define INT_SET(reference,arch,valueref) \
+    (__builtin_constant_p(valueref) ? \
+	(void)( (reference) = ( ((arch) != ARCH_NOCONVERT) ? (INT_SWAP((reference),(valueref))) : (valueref)) ) : \
+	(void)( \
+	    ((reference) = (valueref)), \
+	    ( ((arch) != ARCH_NOCONVERT) ? (reference) = INT_SWAP((reference),(reference)) : 0 ) \
+	) \
+    )
+
+/* does not return a value */
+#define INT_MOD_EXPR(reference,arch,code) \
+    (((arch) == ARCH_NOCONVERT) \
+	? \
+	    (void)((reference) code) \
+	: \
+	    (void)( \
+		(reference) = INT_GET((reference),arch) , \
+		((reference) code), \
+		INT_SET(reference, arch, reference) \
+	    ) \
+    )
+
+/* does not return a value */
+#define INT_MOD(reference,arch,delta) \
+    (void)( \
+	INT_MOD_EXPR(reference,arch,+=(delta)) \
+    )
+
+/*
+ * INT_COPY - copy a value between two locations with the
+ *	      _same architecture_ but _potentially different sizes_
+ *
+ *	    if the types of the two parameters are equal or they are
+ *		in native architecture, a simple copy is done
+ *
+ *	    otherwise, architecture conversions are done
+ *
+ */
+
+/* does not return a value */
+#define INT_COPY(dst,src,arch) \
+    ( \
+	((sizeof(dst) == sizeof(src)) || ((arch) == ARCH_NOCONVERT)) \
+	    ? \
+		(void)((dst) = (src)) \
+	    : \
+		INT_SET(dst, arch, INT_GET(src, arch)) \
+    )
+
+/*
+ * INT_XLATE - copy a value in either direction between two locations
+ *	       with different architectures
+ *
+ *		    dir < 0	- copy from memory to buffer (native to arch)
+ *		    dir > 0	- copy from buffer to memory (arch to native)
+ */
+
+/* does not return a value */
+#define INT_XLATE(buf,mem,dir,arch) {\
+    ASSERT(dir); \
+    if (dir>0) { \
+	(mem)=INT_GET(buf, arch); \
+    } else { \
+	INT_SET(buf, arch, mem); \
+    } \
+}
+
+#define INT_ISZERO(reference,arch) \
+    ((reference) == 0)
+
+#define INT_ZERO(reference,arch) \
+    ((reference) = 0)
+
+#define INT_GET_UNALIGNED_16_ARCH(pointer,arch) \
+    ( ((arch) == ARCH_NOCONVERT) \
+	? \
+	    (INT_GET_UNALIGNED_16(pointer)) \
+	: \
+	    (INT_GET_UNALIGNED_16_BE(pointer)) \
+    )
+#define INT_SET_UNALIGNED_16_ARCH(pointer,value,arch) \
+    if ((arch) == ARCH_NOCONVERT) { \
+	INT_SET_UNALIGNED_16(pointer,value); \
+    } else { \
+	INT_SET_UNALIGNED_16_BE(pointer,value); \
+    }
+
+#define DIRINO4_GET_ARCH(pointer,arch) \
+    ( ((arch) == ARCH_NOCONVERT) \
+	? \
+	    (INT_GET_UNALIGNED_32(pointer)) \
+	: \
+	    (INT_GET_UNALIGNED_32_BE(pointer)) \
+    )
+
+#if XFS_BIG_INUMS
+#define DIRINO_GET_ARCH(pointer,arch) \
+    ( ((arch) == ARCH_NOCONVERT) \
+	? \
+	    (INT_GET_UNALIGNED_64(pointer)) \
+	: \
+	    (INT_GET_UNALIGNED_64_BE(pointer)) \
+    )
+#else
+/* MACHINE ARCHITECTURE dependent */
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+#define DIRINO_GET_ARCH(pointer,arch) \
+    DIRINO4_GET_ARCH((((__u8*)pointer)+4),arch)
+#else
+#define DIRINO_GET_ARCH(pointer,arch) \
+    DIRINO4_GET_ARCH(pointer,arch)
+#endif
+#endif
+
+#define DIRINO_COPY_ARCH(from,to,arch) \
+    if ((arch) == ARCH_NOCONVERT) { \
+	memcpy(to,from,sizeof(xfs_ino_t)); \
+    } else { \
+	INT_SWAP_UNALIGNED_64(from,to); \
+    }
+#define DIRINO4_COPY_ARCH(from,to,arch) \
+    if ((arch) == ARCH_NOCONVERT) { \
+	memcpy(to,(((__u8*)from+4)),sizeof(xfs_dir2_ino4_t)); \
+    } else { \
+	INT_SWAP_UNALIGNED_32(from,to); \
+    }
+
+#endif	/* __XFS_ARCH_H__ */
diff --git a/fs/xfs/xfs_attr.c b/fs/xfs/xfs_attr.c
new file mode 100644
index 00000000000000..6cd3b58467b1aa
--- /dev/null
+++ b/fs/xfs/xfs_attr.c
@@ -0,0 +1,2660 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_alloc.h"
+#include "xfs_btree.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode_item.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_da_btree.h"
+#include "xfs_attr.h"
+#include "xfs_attr_leaf.h"
+#include "xfs_error.h"
+#include "xfs_bit.h"
+#include "xfs_quota.h"
+#include "xfs_rw.h"
+#include "xfs_trans_space.h"
+#include "xfs_acl.h"
+
+/*
+ * xfs_attr.c
+ *
+ * Provide the external interfaces to manage attribute lists.
+ */
+
+/*========================================================================
+ * Function prototypes for the kernel.
+ *========================================================================*/
+
+/*
+ * Internal routines when attribute list fits inside the inode.
+ */
+STATIC int xfs_attr_shortform_addname(xfs_da_args_t *args);
+
+/*
+ * Internal routines when attribute list is one block.
+ */
+STATIC int xfs_attr_leaf_addname(xfs_da_args_t *args);
+STATIC int xfs_attr_leaf_removename(xfs_da_args_t *args);
+STATIC int xfs_attr_leaf_list(xfs_attr_list_context_t *context);
+
+/*
+ * Internal routines when attribute list is more than one block.
+ */
+STATIC int xfs_attr_node_addname(xfs_da_args_t *args);
+STATIC int xfs_attr_node_removename(xfs_da_args_t *args);
+STATIC int xfs_attr_node_list(xfs_attr_list_context_t *context);
+STATIC int xfs_attr_fillstate(xfs_da_state_t *state);
+STATIC int xfs_attr_refillstate(xfs_da_state_t *state);
+
+/*
+ * Routines to manipulate out-of-line attribute values.
+ */
+STATIC int xfs_attr_rmtval_get(xfs_da_args_t *args);
+STATIC int xfs_attr_rmtval_set(xfs_da_args_t *args);
+STATIC int xfs_attr_rmtval_remove(xfs_da_args_t *args);
+
+#define ATTR_RMTVALUE_MAPSIZE	1	/* # of map entries at once */
+
+#if defined(XFS_ATTR_TRACE)
+ktrace_t *xfs_attr_trace_buf;
+#endif
+
+
+/*========================================================================
+ * Overall external interface routines.
+ *========================================================================*/
+
+int
+xfs_attr_fetch(xfs_inode_t *ip, char *name, int namelen,
+	       char *value, int *valuelenp, int flags, struct cred *cred)
+{
+	xfs_da_args_t   args;
+	int             error;
+
+	if ((XFS_IFORK_Q(ip) == 0) ||
+	    (ip->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS &&
+	     ip->i_d.di_anextents == 0))
+		return(ENOATTR);
+
+	if (!(flags & (ATTR_KERNACCESS|ATTR_SECURE))) {
+		if ((error = xfs_iaccess(ip, S_IRUSR, cred)))
+			return(XFS_ERROR(error));
+	}
+
+	/*
+	 * Fill in the arg structure for this request.
+	 */
+	memset((char *)&args, 0, sizeof(args));
+	args.name = name;
+	args.namelen = namelen;
+	args.value = value;
+	args.valuelen = *valuelenp;
+	args.flags = flags;
+	args.hashval = xfs_da_hashname(args.name, args.namelen);
+	args.dp = ip;
+	args.whichfork = XFS_ATTR_FORK;
+
+	/*
+	 * Decide on what work routines to call based on the inode size.
+	 */
+	if (XFS_IFORK_Q(ip) == 0 ||
+	    (ip->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS &&
+	     ip->i_d.di_anextents == 0)) {
+		error = XFS_ERROR(ENOATTR);
+	} else if (ip->i_d.di_aformat == XFS_DINODE_FMT_LOCAL) {
+		error = xfs_attr_shortform_getvalue(&args);
+	} else if (xfs_bmap_one_block(ip, XFS_ATTR_FORK)) {
+		error = xfs_attr_leaf_get(&args);
+	} else {
+		error = xfs_attr_node_get(&args);
+	}
+
+	/*
+	 * Return the number of bytes in the value to the caller.
+	 */
+	*valuelenp = args.valuelen;
+
+	if (error == EEXIST)
+		error = 0;
+	return(error);
+}
+
+int
+xfs_attr_get(bhv_desc_t *bdp, char *name, char *value, int *valuelenp,
+	     int flags, struct cred *cred)
+{
+	xfs_inode_t	*ip = XFS_BHVTOI(bdp);
+	int		error, namelen;
+
+	XFS_STATS_INC(xs_attr_get);
+
+	if (!name)
+		return(EINVAL);
+	namelen = strlen(name);
+	if (namelen >= MAXNAMELEN)
+		return(EFAULT);		/* match IRIX behaviour */
+
+	if (XFS_FORCED_SHUTDOWN(ip->i_mount))
+		return(EIO);
+
+	xfs_ilock(ip, XFS_ILOCK_SHARED);
+	error = xfs_attr_fetch(ip, name, namelen, value, valuelenp, flags, cred);
+	xfs_iunlock(ip, XFS_ILOCK_SHARED);
+	return(error);
+}
+
+/*ARGSUSED*/
+int								/* error */
+xfs_attr_set(bhv_desc_t *bdp, char *name, char *value, int valuelen, int flags,
+		     struct cred *cred)
+{
+	xfs_da_args_t	args;
+	xfs_inode_t	*dp;
+	xfs_fsblock_t	firstblock;
+	xfs_bmap_free_t flist;
+	int		error, err2, committed;
+	int		local, size;
+	uint		nblks;
+	xfs_mount_t	*mp;
+	int             rsvd = (flags & ATTR_ROOT) != 0;
+	int             namelen;
+
+	namelen = strlen(name);
+	if (namelen >= MAXNAMELEN)
+		return EFAULT;		/* match IRIX behaviour */
+
+	XFS_STATS_INC(xs_attr_set);
+
+	dp = XFS_BHVTOI(bdp);
+	mp = dp->i_mount;
+	if (XFS_FORCED_SHUTDOWN(mp))
+		return (EIO);
+
+	xfs_ilock(dp, XFS_ILOCK_SHARED);
+	if (!(flags & ATTR_SECURE) &&
+	     (error = xfs_iaccess(dp, S_IWUSR, cred))) {
+		xfs_iunlock(dp, XFS_ILOCK_SHARED);
+		return(XFS_ERROR(error));
+	}
+	xfs_iunlock(dp, XFS_ILOCK_SHARED);
+
+	/*
+	 * Attach the dquots to the inode.
+	 */
+	if ((error = XFS_QM_DQATTACH(mp, dp, 0)))
+		return (error);
+
+	/*
+	 * If the inode doesn't have an attribute fork, add one.
+	 * (inode must not be locked when we call this routine)
+	 */
+	if (XFS_IFORK_Q(dp) == 0) {
+		error = xfs_bmap_add_attrfork(dp, rsvd);
+		if (error)
+			return(error);
+	}
+
+	/*
+	 * Fill in the arg structure for this request.
+	 */
+	memset((char *)&args, 0, sizeof(args));
+	args.name = name;
+	args.namelen = namelen;
+	args.value = value;
+	args.valuelen = valuelen;
+	args.flags = flags;
+	args.hashval = xfs_da_hashname(args.name, args.namelen);
+	args.dp = dp;
+	args.firstblock = &firstblock;
+	args.flist = &flist;
+	args.whichfork = XFS_ATTR_FORK;
+	args.oknoent = 1;
+
+	/* Determine space new attribute will use, and if it will be inline
+	 * or out of line.
+	 */
+	size = xfs_attr_leaf_newentsize(&args, mp->m_sb.sb_blocksize, &local);
+
+	nblks = XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK);
+	if (local) {
+		if (size > (mp->m_sb.sb_blocksize >> 1)) {
+			/* Double split possible */
+			nblks <<= 1;
+		}
+	} else {
+		uint	dblocks = XFS_B_TO_FSB(mp, valuelen);
+		/* Out of line attribute, cannot double split, but make
+		 * room for the attribute value itself.
+		 */
+		nblks += dblocks;
+		nblks += XFS_NEXTENTADD_SPACE_RES(mp, dblocks, XFS_ATTR_FORK);
+	}
+
+	/* Size is now blocks for attribute data */
+	args.total = nblks;
+
+	/*
+	 * Start our first transaction of the day.
+	 *
+	 * All future transactions during this code must be "chained" off
+	 * this one via the trans_dup() call.  All transactions will contain
+	 * the inode, and the inode will always be marked with trans_ihold().
+	 * Since the inode will be locked in all transactions, we must log
+	 * the inode in every transaction to let it float upward through
+	 * the log.
+	 */
+	args.trans = xfs_trans_alloc(mp, XFS_TRANS_ATTR_SET);
+
+	/*
+	 * Root fork attributes can use reserved data blocks for this
+	 * operation if necessary
+	 */
+
+	if (rsvd)
+		args.trans->t_flags |= XFS_TRANS_RESERVE;
+
+	if ((error = xfs_trans_reserve(args.trans, (uint) nblks,
+				      XFS_ATTRSET_LOG_RES(mp, nblks),
+				      0, XFS_TRANS_PERM_LOG_RES,
+				      XFS_ATTRSET_LOG_COUNT))) {
+		xfs_trans_cancel(args.trans, 0);
+		return(error);
+	}
+	xfs_ilock(dp, XFS_ILOCK_EXCL);
+
+	error = XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, args.trans, dp, nblks, 0,
+			 rsvd ? XFS_QMOPT_RES_REGBLKS | XFS_QMOPT_FORCE_RES :
+				XFS_QMOPT_RES_REGBLKS);
+	if (error) {
+		xfs_iunlock(dp, XFS_ILOCK_EXCL);
+		xfs_trans_cancel(args.trans, XFS_TRANS_RELEASE_LOG_RES);
+		return (error);
+	}
+
+	xfs_trans_ijoin(args.trans, dp, XFS_ILOCK_EXCL);
+	xfs_trans_ihold(args.trans, dp);
+
+	/*
+	 * If the attribute list is non-existant or a shortform list,
+	 * upgrade it to a single-leaf-block attribute list.
+	 */
+	if ((dp->i_d.di_aformat == XFS_DINODE_FMT_LOCAL) ||
+	    ((dp->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS) &&
+	     (dp->i_d.di_anextents == 0))) {
+
+		/*
+		 * Build initial attribute list (if required).
+		 */
+		if (dp->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS)
+			(void)xfs_attr_shortform_create(&args);
+
+		/*
+		 * Try to add the attr to the attribute list in
+		 * the inode.
+		 */
+		error = xfs_attr_shortform_addname(&args);
+		if (error != ENOSPC) {
+			/*
+			 * Commit the shortform mods, and we're done.
+			 * NOTE: this is also the error path (EEXIST, etc).
+			 */
+			ASSERT(args.trans != NULL);
+
+			/*
+			 * If this is a synchronous mount, make sure that
+			 * the transaction goes to disk before returning
+			 * to the user.
+			 */
+			if (mp->m_flags & XFS_MOUNT_WSYNC) {
+				xfs_trans_set_sync(args.trans);
+			}
+			err2 = xfs_trans_commit(args.trans,
+						 XFS_TRANS_RELEASE_LOG_RES,
+						 NULL);
+			xfs_iunlock(dp, XFS_ILOCK_EXCL);
+
+			/*
+			 * Hit the inode change time.
+			 */
+			if (!error && (flags & ATTR_KERNOTIME) == 0) {
+				xfs_ichgtime(dp, XFS_ICHGTIME_CHG);
+			}
+			return(error == 0 ? err2 : error);
+		}
+
+		/*
+		 * It won't fit in the shortform, transform to a leaf block.
+		 * GROT: another possible req'mt for a double-split btree op.
+		 */
+		XFS_BMAP_INIT(args.flist, args.firstblock);
+		error = xfs_attr_shortform_to_leaf(&args);
+		if (!error) {
+			error = xfs_bmap_finish(&args.trans, args.flist,
+						*args.firstblock, &committed);
+		}
+		if (error) {
+			ASSERT(committed);
+			args.trans = NULL;
+			xfs_bmap_cancel(&flist);
+			goto out;
+		}
+
+		/*
+		 * bmap_finish() may have committed the last trans and started
+		 * a new one.  We need the inode to be in all transactions.
+		 */
+		if (committed) {
+			xfs_trans_ijoin(args.trans, dp, XFS_ILOCK_EXCL);
+			xfs_trans_ihold(args.trans, dp);
+		}
+
+		/*
+		 * Commit the leaf transformation.  We'll need another (linked)
+		 * transaction to add the new attribute to the leaf.
+		 */
+		if ((error = xfs_attr_rolltrans(&args.trans, dp)))
+			goto out;
+
+	}
+
+	if (xfs_bmap_one_block(dp, XFS_ATTR_FORK)) {
+		error = xfs_attr_leaf_addname(&args);
+	} else {
+		error = xfs_attr_node_addname(&args);
+	}
+	if (error) {
+		goto out;
+	}
+
+	/*
+	 * If this is a synchronous mount, make sure that the
+	 * transaction goes to disk before returning to the user.
+	 */
+	if (mp->m_flags & XFS_MOUNT_WSYNC) {
+		xfs_trans_set_sync(args.trans);
+	}
+
+	/*
+	 * Commit the last in the sequence of transactions.
+	 */
+	xfs_trans_log_inode(args.trans, dp, XFS_ILOG_CORE);
+	error = xfs_trans_commit(args.trans, XFS_TRANS_RELEASE_LOG_RES,
+				 NULL);
+	xfs_iunlock(dp, XFS_ILOCK_EXCL);
+
+	/*
+	 * Hit the inode change time.
+	 */
+	if (!error && (flags & ATTR_KERNOTIME) == 0) {
+		xfs_ichgtime(dp, XFS_ICHGTIME_CHG);
+	}
+
+	return(error);
+
+out:
+	if (args.trans)
+		xfs_trans_cancel(args.trans,
+			XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_ABORT);
+	xfs_iunlock(dp, XFS_ILOCK_EXCL);
+	return(error);
+}
+
+/*
+ * Generic handler routine to remove a name from an attribute list.
+ * Transitions attribute list from Btree to shortform as necessary.
+ */
+/*ARGSUSED*/
+int								/* error */
+xfs_attr_remove(bhv_desc_t *bdp, char *name, int flags, struct cred *cred)
+{
+	xfs_da_args_t       args;
+	xfs_inode_t         *dp;
+	xfs_fsblock_t       firstblock;
+	xfs_bmap_free_t     flist;
+	int                 error;
+	xfs_mount_t         *mp;
+	int                 namelen;
+
+	ASSERT(MAXNAMELEN-1<=0xff); /* length is stored in uint8 */
+	namelen = strlen(name);
+	if (namelen>=MAXNAMELEN)
+		return EFAULT; /* match irix behaviour */
+
+	XFS_STATS_INC(xs_attr_remove);
+
+	dp = XFS_BHVTOI(bdp);
+	mp = dp->i_mount;
+	if (XFS_FORCED_SHUTDOWN(mp))
+		return (EIO);
+
+	xfs_ilock(dp, XFS_ILOCK_SHARED);
+	if (!(flags & ATTR_SECURE) &&
+	     (error = xfs_iaccess(dp, S_IWUSR, cred))) {
+		xfs_iunlock(dp, XFS_ILOCK_SHARED);
+		return(XFS_ERROR(error));
+	} else if (XFS_IFORK_Q(dp) == 0 ||
+		   (dp->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS &&
+		    dp->i_d.di_anextents == 0)) {
+		xfs_iunlock(dp, XFS_ILOCK_SHARED);
+		return(XFS_ERROR(ENOATTR));
+	}
+	xfs_iunlock(dp, XFS_ILOCK_SHARED);
+
+	/*
+	 * Fill in the arg structure for this request.
+	 */
+	memset((char *)&args, 0, sizeof(args));
+	args.name = name;
+	args.namelen = namelen;
+	args.flags = flags;
+	args.hashval = xfs_da_hashname(args.name, args.namelen);
+	args.dp = dp;
+	args.firstblock = &firstblock;
+	args.flist = &flist;
+	args.total = 0;
+	args.whichfork = XFS_ATTR_FORK;
+
+	/*
+	 * Attach the dquots to the inode.
+	 */
+	if ((error = XFS_QM_DQATTACH(mp, dp, 0)))
+		return (error);
+
+	/*
+	 * Start our first transaction of the day.
+	 *
+	 * All future transactions during this code must be "chained" off
+	 * this one via the trans_dup() call.  All transactions will contain
+	 * the inode, and the inode will always be marked with trans_ihold().
+	 * Since the inode will be locked in all transactions, we must log
+	 * the inode in every transaction to let it float upward through
+	 * the log.
+	 */
+	args.trans = xfs_trans_alloc(mp, XFS_TRANS_ATTR_RM);
+
+	/*
+	 * Root fork attributes can use reserved data blocks for this
+	 * operation if necessary
+	 */
+
+	if (flags & ATTR_ROOT)
+		args.trans->t_flags |= XFS_TRANS_RESERVE;
+
+	if ((error = xfs_trans_reserve(args.trans,
+				      XFS_ATTRRM_SPACE_RES(mp),
+				      XFS_ATTRRM_LOG_RES(mp),
+				      0, XFS_TRANS_PERM_LOG_RES,
+				      XFS_ATTRRM_LOG_COUNT))) {
+		xfs_trans_cancel(args.trans, 0);
+		return(error);
+
+	}
+
+	xfs_ilock(dp, XFS_ILOCK_EXCL);
+	/*
+	 * No need to make quota reservations here. We expect to release some
+	 * blocks not allocate in the common case.
+	 */
+	xfs_trans_ijoin(args.trans, dp, XFS_ILOCK_EXCL);
+	xfs_trans_ihold(args.trans, dp);
+
+	/*
+	 * Decide on what work routines to call based on the inode size.
+	 */
+	if (XFS_IFORK_Q(dp) == 0 ||
+	    (dp->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS &&
+	     dp->i_d.di_anextents == 0)) {
+		error = XFS_ERROR(ENOATTR);
+		goto out;
+	}
+	if (dp->i_d.di_aformat == XFS_DINODE_FMT_LOCAL) {
+		ASSERT(dp->i_afp->if_flags & XFS_IFINLINE);
+		error = xfs_attr_shortform_remove(&args);
+		if (error) {
+			goto out;
+		}
+	} else if (xfs_bmap_one_block(dp, XFS_ATTR_FORK)) {
+		error = xfs_attr_leaf_removename(&args);
+	} else {
+		error = xfs_attr_node_removename(&args);
+	}
+	if (error) {
+		goto out;
+	}
+
+	/*
+	 * If this is a synchronous mount, make sure that the
+	 * transaction goes to disk before returning to the user.
+	 */
+	if (mp->m_flags & XFS_MOUNT_WSYNC) {
+		xfs_trans_set_sync(args.trans);
+	}
+
+	/*
+	 * Commit the last in the sequence of transactions.
+	 */
+	xfs_trans_log_inode(args.trans, dp, XFS_ILOG_CORE);
+	error = xfs_trans_commit(args.trans, XFS_TRANS_RELEASE_LOG_RES,
+				 NULL);
+	xfs_iunlock(dp, XFS_ILOCK_EXCL);
+
+	/*
+	 * Hit the inode change time.
+	 */
+	if (!error && (flags & ATTR_KERNOTIME) == 0) {
+		xfs_ichgtime(dp, XFS_ICHGTIME_CHG);
+	}
+
+	return(error);
+
+out:
+	if (args.trans)
+		xfs_trans_cancel(args.trans,
+			XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_ABORT);
+	xfs_iunlock(dp, XFS_ILOCK_EXCL);
+	return(error);
+}
+
+/*
+ * Generate a list of extended attribute names and optionally
+ * also value lengths.  Positive return value follows the XFS
+ * convention of being an error, zero or negative return code
+ * is the length of the buffer returned (negated), indicating
+ * success.
+ */
+int
+xfs_attr_list(bhv_desc_t *bdp, char *buffer, int bufsize, int flags,
+		      attrlist_cursor_kern_t *cursor, struct cred *cred)
+{
+	xfs_attr_list_context_t context;
+	xfs_inode_t *dp;
+	int error;
+
+	XFS_STATS_INC(xs_attr_list);
+
+	/*
+	 * Validate the cursor.
+	 */
+	if (cursor->pad1 || cursor->pad2)
+		return(XFS_ERROR(EINVAL));
+	if ((cursor->initted == 0) &&
+	    (cursor->hashval || cursor->blkno || cursor->offset))
+		return(XFS_ERROR(EINVAL));
+
+	/*
+	 * Check for a properly aligned buffer.
+	 */
+	if (((long)buffer) & (sizeof(int)-1))
+		return(XFS_ERROR(EFAULT));
+	if (flags & ATTR_KERNOVAL)
+		bufsize = 0;
+
+	/*
+	 * Initialize the output buffer.
+	 */
+	context.dp = dp = XFS_BHVTOI(bdp);
+	context.cursor = cursor;
+	context.count = 0;
+	context.dupcnt = 0;
+	context.resynch = 1;
+	context.flags = flags;
+	if (!(flags & ATTR_KERNAMELS)) {
+		context.bufsize = (bufsize & ~(sizeof(int)-1));  /* align */
+		context.firstu = context.bufsize;
+		context.alist = (attrlist_t *)buffer;
+		context.alist->al_count = 0;
+		context.alist->al_more = 0;
+		context.alist->al_offset[0] = context.bufsize;
+	}
+	else {
+		context.bufsize = bufsize;
+		context.firstu = context.bufsize;
+		context.alist = (attrlist_t *)buffer;
+	}
+
+	if (XFS_FORCED_SHUTDOWN(dp->i_mount))
+		return (EIO);
+
+	xfs_ilock(dp, XFS_ILOCK_SHARED);
+	if (!(flags & ATTR_SECURE) &&
+	     (error = xfs_iaccess(dp, S_IRUSR, cred))) {
+		xfs_iunlock(dp, XFS_ILOCK_SHARED);
+		return(XFS_ERROR(error));
+	}
+
+	/*
+	 * Decide on what work routines to call based on the inode size.
+	 */
+	xfs_attr_trace_l_c("syscall start", &context);
+	if (XFS_IFORK_Q(dp) == 0 ||
+	    (dp->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS &&
+	     dp->i_d.di_anextents == 0)) {
+		error = 0;
+	} else if (dp->i_d.di_aformat == XFS_DINODE_FMT_LOCAL) {
+		error = xfs_attr_shortform_list(&context);
+	} else if (xfs_bmap_one_block(dp, XFS_ATTR_FORK)) {
+		error = xfs_attr_leaf_list(&context);
+	} else {
+		error = xfs_attr_node_list(&context);
+	}
+	xfs_iunlock(dp, XFS_ILOCK_SHARED);
+	xfs_attr_trace_l_c("syscall end", &context);
+
+	if (!(context.flags & (ATTR_KERNOVAL|ATTR_KERNAMELS))) {
+		ASSERT(error >= 0);
+	}
+	else {	/* must return negated buffer size or the error */
+		if (context.count < 0)
+			error = XFS_ERROR(ERANGE);
+		else
+			error = -context.count;
+	}
+
+	return(error);
+}
+
+int								/* error */
+xfs_attr_inactive(xfs_inode_t *dp)
+{
+	xfs_trans_t *trans;
+	xfs_mount_t *mp;
+	int error;
+
+	mp = dp->i_mount;
+	ASSERT(! XFS_NOT_DQATTACHED(mp, dp));
+
+	xfs_ilock(dp, XFS_ILOCK_SHARED);
+	if ((XFS_IFORK_Q(dp) == 0) ||
+	    (dp->i_d.di_aformat == XFS_DINODE_FMT_LOCAL) ||
+	    (dp->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS &&
+	     dp->i_d.di_anextents == 0)) {
+		xfs_iunlock(dp, XFS_ILOCK_SHARED);
+		return(0);
+	}
+	xfs_iunlock(dp, XFS_ILOCK_SHARED);
+
+	/*
+	 * Start our first transaction of the day.
+	 *
+	 * All future transactions during this code must be "chained" off
+	 * this one via the trans_dup() call.  All transactions will contain
+	 * the inode, and the inode will always be marked with trans_ihold().
+	 * Since the inode will be locked in all transactions, we must log
+	 * the inode in every transaction to let it float upward through
+	 * the log.
+	 */
+	trans = xfs_trans_alloc(mp, XFS_TRANS_ATTRINVAL);
+	if ((error = xfs_trans_reserve(trans, 0, XFS_ATTRINVAL_LOG_RES(mp), 0,
+				      XFS_TRANS_PERM_LOG_RES,
+				      XFS_ATTRINVAL_LOG_COUNT))) {
+		xfs_trans_cancel(trans, 0);
+		return(error);
+	}
+	xfs_ilock(dp, XFS_ILOCK_EXCL);
+
+	/*
+	 * No need to make quota reservations here. We expect to release some
+	 * blocks, not allocate, in the common case.
+	 */
+	xfs_trans_ijoin(trans, dp, XFS_ILOCK_EXCL);
+	xfs_trans_ihold(trans, dp);
+
+	/*
+	 * Decide on what work routines to call based on the inode size.
+	 */
+	if ((XFS_IFORK_Q(dp) == 0) ||
+	    (dp->i_d.di_aformat == XFS_DINODE_FMT_LOCAL) ||
+	    (dp->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS &&
+	     dp->i_d.di_anextents == 0)) {
+		error = 0;
+		goto out;
+	}
+	error = xfs_attr_root_inactive(&trans, dp);
+	if (error)
+		goto out;
+	/*
+	 * signal synchronous inactive transactions unless this
+	 * is a synchronous mount filesystem in which case we
+	 * know that we're here because we've been called out of
+	 * xfs_inactive which means that the last reference is gone
+	 * and the unlink transaction has already hit the disk so
+	 * async inactive transactions are safe.
+	 */
+	if ((error = xfs_itruncate_finish(&trans, dp, 0LL, XFS_ATTR_FORK,
+				(!(mp->m_flags & XFS_MOUNT_WSYNC)
+				 ? 1 : 0))))
+		goto out;
+
+	/*
+	 * Commit the last in the sequence of transactions.
+	 */
+	xfs_trans_log_inode(trans, dp, XFS_ILOG_CORE);
+	error = xfs_trans_commit(trans, XFS_TRANS_RELEASE_LOG_RES,
+				 NULL);
+	xfs_iunlock(dp, XFS_ILOCK_EXCL);
+
+	return(error);
+
+out:
+	xfs_trans_cancel(trans, XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_ABORT);
+	xfs_iunlock(dp, XFS_ILOCK_EXCL);
+	return(error);
+}
+
+
+
+/*========================================================================
+ * External routines when attribute list is inside the inode
+ *========================================================================*/
+
+/*
+ * Add a name to the shortform attribute list structure
+ * This is the external routine.
+ */
+STATIC int
+xfs_attr_shortform_addname(xfs_da_args_t *args)
+{
+	int newsize, retval;
+
+	retval = xfs_attr_shortform_lookup(args);
+	if ((args->flags & ATTR_REPLACE) && (retval == ENOATTR)) {
+		return(retval);
+	} else if (retval == EEXIST) {
+		if (args->flags & ATTR_CREATE)
+			return(retval);
+		retval = xfs_attr_shortform_remove(args);
+		ASSERT(retval == 0);
+	}
+
+	newsize = XFS_ATTR_SF_TOTSIZE(args->dp);
+	newsize += XFS_ATTR_SF_ENTSIZE_BYNAME(args->namelen, args->valuelen);
+	if ((newsize <= XFS_IFORK_ASIZE(args->dp)) &&
+	    (args->namelen < XFS_ATTR_SF_ENTSIZE_MAX) &&
+	    (args->valuelen < XFS_ATTR_SF_ENTSIZE_MAX)) {
+		retval = xfs_attr_shortform_add(args);
+		ASSERT(retval == 0);
+	} else {
+		return(XFS_ERROR(ENOSPC));
+	}
+	return(0);
+}
+
+
+/*========================================================================
+ * External routines when attribute list is one block
+ *========================================================================*/
+
+/*
+ * Add a name to the leaf attribute list structure
+ *
+ * This leaf block cannot have a "remote" value, we only call this routine
+ * if bmap_one_block() says there is only one block (ie: no remote blks).
+ */
+int
+xfs_attr_leaf_addname(xfs_da_args_t *args)
+{
+	xfs_inode_t *dp;
+	xfs_dabuf_t *bp;
+	int retval, error, committed;
+
+	/*
+	 * Read the (only) block in the attribute list in.
+	 */
+	dp = args->dp;
+	args->blkno = 0;
+	error = xfs_da_read_buf(args->trans, args->dp, args->blkno, -1, &bp,
+					     XFS_ATTR_FORK);
+	if (error)
+		return(error);
+	ASSERT(bp != NULL);
+
+	/*
+	 * Look up the given attribute in the leaf block.  Figure out if
+	 * the given flags produce an error or call for an atomic rename.
+	 */
+	retval = xfs_attr_leaf_lookup_int(bp, args);
+	if ((args->flags & ATTR_REPLACE) && (retval == ENOATTR)) {
+		xfs_da_brelse(args->trans, bp);
+		return(retval);
+	} else if (retval == EEXIST) {
+		if (args->flags & ATTR_CREATE) {	/* pure create op */
+			xfs_da_brelse(args->trans, bp);
+			return(retval);
+		}
+		args->rename = 1;			/* an atomic rename */
+		args->blkno2 = args->blkno;		/* set 2nd entry info*/
+		args->index2 = args->index;
+		args->rmtblkno2 = args->rmtblkno;
+		args->rmtblkcnt2 = args->rmtblkcnt;
+	}
+
+	/*
+	 * Add the attribute to the leaf block, transitioning to a Btree
+	 * if required.
+	 */
+	retval = xfs_attr_leaf_add(bp, args);
+	xfs_da_buf_done(bp);
+	if (retval == ENOSPC) {
+		/*
+		 * Promote the attribute list to the Btree format, then
+		 * Commit that transaction so that the node_addname() call
+		 * can manage its own transactions.
+		 */
+		XFS_BMAP_INIT(args->flist, args->firstblock);
+		error = xfs_attr_leaf_to_node(args);
+		if (!error) {
+			error = xfs_bmap_finish(&args->trans, args->flist,
+						*args->firstblock, &committed);
+		}
+		if (error) {
+			ASSERT(committed);
+			args->trans = NULL;
+			xfs_bmap_cancel(args->flist);
+			return(error);
+		}
+
+		/*
+		 * bmap_finish() may have committed the last trans and started
+		 * a new one.  We need the inode to be in all transactions.
+		 */
+		if (committed) {
+			xfs_trans_ijoin(args->trans, dp, XFS_ILOCK_EXCL);
+			xfs_trans_ihold(args->trans, dp);
+		}
+
+		/*
+		 * Commit the current trans (including the inode) and start
+		 * a new one.
+		 */
+		if ((error = xfs_attr_rolltrans(&args->trans, dp)))
+			return (error);
+
+		/*
+		 * Fob the whole rest of the problem off on the Btree code.
+		 */
+		error = xfs_attr_node_addname(args);
+		return(error);
+	}
+
+	/*
+	 * Commit the transaction that added the attr name so that
+	 * later routines can manage their own transactions.
+	 */
+	if ((error = xfs_attr_rolltrans(&args->trans, dp)))
+		return (error);
+
+	/*
+	 * If there was an out-of-line value, allocate the blocks we
+	 * identified for its storage and copy the value.  This is done
+	 * after we create the attribute so that we don't overflow the
+	 * maximum size of a transaction and/or hit a deadlock.
+	 */
+	if (args->rmtblkno > 0) {
+		error = xfs_attr_rmtval_set(args);
+		if (error)
+			return(error);
+	}
+
+	/*
+	 * If this is an atomic rename operation, we must "flip" the
+	 * incomplete flags on the "new" and "old" attribute/value pairs
+	 * so that one disappears and one appears atomically.  Then we
+	 * must remove the "old" attribute/value pair.
+	 */
+	if (args->rename) {
+		/*
+		 * In a separate transaction, set the incomplete flag on the
+		 * "old" attr and clear the incomplete flag on the "new" attr.
+		 */
+		error = xfs_attr_leaf_flipflags(args);
+		if (error)
+			return(error);
+
+		/*
+		 * Dismantle the "old" attribute/value pair by removing
+		 * a "remote" value (if it exists).
+		 */
+		args->index = args->index2;
+		args->blkno = args->blkno2;
+		args->rmtblkno = args->rmtblkno2;
+		args->rmtblkcnt = args->rmtblkcnt2;
+		if (args->rmtblkno) {
+			error = xfs_attr_rmtval_remove(args);
+			if (error)
+				return(error);
+		}
+
+		/*
+		 * Read in the block containing the "old" attr, then
+		 * remove the "old" attr from that block (neat, huh!)
+		 */
+		error = xfs_da_read_buf(args->trans, args->dp, args->blkno, -1,
+						     &bp, XFS_ATTR_FORK);
+		if (error)
+			return(error);
+		ASSERT(bp != NULL);
+		(void)xfs_attr_leaf_remove(bp, args);
+
+		/*
+		 * If the result is small enough, shrink it all into the inode.
+		 */
+		if (xfs_attr_shortform_allfit(bp, dp)) {
+			XFS_BMAP_INIT(args->flist, args->firstblock);
+			error = xfs_attr_leaf_to_shortform(bp, args);
+			/* bp is gone due to xfs_da_shrink_inode */
+			if (!error) {
+				error = xfs_bmap_finish(&args->trans,
+							args->flist,
+							*args->firstblock,
+							&committed);
+			}
+			if (error) {
+				ASSERT(committed);
+				args->trans = NULL;
+				xfs_bmap_cancel(args->flist);
+				return(error);
+			}
+
+			/*
+			 * bmap_finish() may have committed the last trans
+			 * and started a new one.  We need the inode to be
+			 * in all transactions.
+			 */
+			if (committed) {
+				xfs_trans_ijoin(args->trans, dp, XFS_ILOCK_EXCL);
+				xfs_trans_ihold(args->trans, dp);
+			}
+		} else
+			xfs_da_buf_done(bp);
+
+		/*
+		 * Commit the remove and start the next trans in series.
+		 */
+		error = xfs_attr_rolltrans(&args->trans, dp);
+
+	} else if (args->rmtblkno > 0) {
+		/*
+		 * Added a "remote" value, just clear the incomplete flag.
+		 */
+		error = xfs_attr_leaf_clearflag(args);
+	}
+	return(error);
+}
+
+/*
+ * Remove a name from the leaf attribute list structure
+ *
+ * This leaf block cannot have a "remote" value, we only call this routine
+ * if bmap_one_block() says there is only one block (ie: no remote blks).
+ */
+STATIC int
+xfs_attr_leaf_removename(xfs_da_args_t *args)
+{
+	xfs_inode_t *dp;
+	xfs_dabuf_t *bp;
+	int committed;
+	int error;
+
+	/*
+	 * Remove the attribute.
+	 */
+	dp = args->dp;
+	args->blkno = 0;
+	error = xfs_da_read_buf(args->trans, args->dp, args->blkno, -1, &bp,
+					     XFS_ATTR_FORK);
+	if (error) {
+		return(error);
+	}
+
+	ASSERT(bp != NULL);
+	error = xfs_attr_leaf_lookup_int(bp, args);
+	if (error == ENOATTR) {
+		xfs_da_brelse(args->trans, bp);
+		return(error);
+	}
+
+	(void)xfs_attr_leaf_remove(bp, args);
+
+	/*
+	 * If the result is small enough, shrink it all into the inode.
+	 */
+	if (xfs_attr_shortform_allfit(bp, dp)) {
+		XFS_BMAP_INIT(args->flist, args->firstblock);
+		error = xfs_attr_leaf_to_shortform(bp, args);
+		/* bp is gone due to xfs_da_shrink_inode */
+		if (!error) {
+			error = xfs_bmap_finish(&args->trans, args->flist,
+						*args->firstblock, &committed);
+		}
+		if (error) {
+			ASSERT(committed);
+			args->trans = NULL;
+			xfs_bmap_cancel(args->flist);
+			return(error);
+		}
+
+		/*
+		 * bmap_finish() may have committed the last trans and started
+		 * a new one.  We need the inode to be in all transactions.
+		 */
+		if (committed) {
+			xfs_trans_ijoin(args->trans, dp, XFS_ILOCK_EXCL);
+			xfs_trans_ihold(args->trans, dp);
+		}
+	} else
+		xfs_da_buf_done(bp);
+	return(0);
+}
+
+/*
+ * Look up a name in a leaf attribute list structure.
+ *
+ * This leaf block cannot have a "remote" value, we only call this routine
+ * if bmap_one_block() says there is only one block (ie: no remote blks).
+ */
+int
+xfs_attr_leaf_get(xfs_da_args_t *args)
+{
+	xfs_dabuf_t *bp;
+	int error;
+
+	args->blkno = 0;
+	error = xfs_da_read_buf(args->trans, args->dp, args->blkno, -1, &bp,
+					     XFS_ATTR_FORK);
+	if (error)
+		return(error);
+	ASSERT(bp != NULL);
+
+	error = xfs_attr_leaf_lookup_int(bp, args);
+	if (error != EEXIST)  {
+		xfs_da_brelse(args->trans, bp);
+		return(error);
+	}
+	error = xfs_attr_leaf_getvalue(bp, args);
+	xfs_da_brelse(args->trans, bp);
+	if (!error && (args->rmtblkno > 0) && !(args->flags & ATTR_KERNOVAL)) {
+		error = xfs_attr_rmtval_get(args);
+	}
+	return(error);
+}
+
+/*
+ * Copy out attribute entries for attr_list(), for leaf attribute lists.
+ */
+STATIC int
+xfs_attr_leaf_list(xfs_attr_list_context_t *context)
+{
+	xfs_attr_leafblock_t *leaf;
+	int error;
+	xfs_dabuf_t *bp;
+
+	context->cursor->blkno = 0;
+	error = xfs_da_read_buf(NULL, context->dp, 0, -1, &bp, XFS_ATTR_FORK);
+	if (error)
+		return(error);
+	ASSERT(bp != NULL);
+	leaf = bp->data;
+	if (unlikely(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT)
+						!= XFS_ATTR_LEAF_MAGIC)) {
+		XFS_CORRUPTION_ERROR("xfs_attr_leaf_list", XFS_ERRLEVEL_LOW,
+				     context->dp->i_mount, leaf);
+		xfs_da_brelse(NULL, bp);
+		return(XFS_ERROR(EFSCORRUPTED));
+	}
+
+	(void)xfs_attr_leaf_list_int(bp, context);
+	xfs_da_brelse(NULL, bp);
+	return(0);
+}
+
+
+/*========================================================================
+ * External routines when attribute list size > XFS_LBSIZE(mp).
+ *========================================================================*/
+
+/*
+ * Add a name to a Btree-format attribute list.
+ *
+ * This will involve walking down the Btree, and may involve splitting
+ * leaf nodes and even splitting intermediate nodes up to and including
+ * the root node (a special case of an intermediate node).
+ *
+ * "Remote" attribute values confuse the issue and atomic rename operations
+ * add a whole extra layer of confusion on top of that.
+ */
+STATIC int
+xfs_attr_node_addname(xfs_da_args_t *args)
+{
+	xfs_da_state_t *state;
+	xfs_da_state_blk_t *blk;
+	xfs_inode_t *dp;
+	xfs_mount_t *mp;
+	int committed, retval, error;
+
+	/*
+	 * Fill in bucket of arguments/results/context to carry around.
+	 */
+	dp = args->dp;
+	mp = dp->i_mount;
+restart:
+	state = xfs_da_state_alloc();
+	state->args = args;
+	state->mp = mp;
+	state->blocksize = state->mp->m_sb.sb_blocksize;
+	state->node_ents = state->mp->m_attr_node_ents;
+
+	/*
+	 * Search to see if name already exists, and get back a pointer
+	 * to where it should go.
+	 */
+	error = xfs_da_node_lookup_int(state, &retval);
+	if (error)
+		goto out;
+	blk = &state->path.blk[ state->path.active-1 ];
+	ASSERT(blk->magic == XFS_ATTR_LEAF_MAGIC);
+	if ((args->flags & ATTR_REPLACE) && (retval == ENOATTR)) {
+		goto out;
+	} else if (retval == EEXIST) {
+		if (args->flags & ATTR_CREATE)
+			goto out;
+		args->rename = 1;			/* atomic rename op */
+		args->blkno2 = args->blkno;		/* set 2nd entry info*/
+		args->index2 = args->index;
+		args->rmtblkno2 = args->rmtblkno;
+		args->rmtblkcnt2 = args->rmtblkcnt;
+		args->rmtblkno = 0;
+		args->rmtblkcnt = 0;
+	}
+
+	retval = xfs_attr_leaf_add(blk->bp, state->args);
+	if (retval == ENOSPC) {
+		if (state->path.active == 1) {
+			/*
+			 * Its really a single leaf node, but it had
+			 * out-of-line values so it looked like it *might*
+			 * have been a b-tree.
+			 */
+			xfs_da_state_free(state);
+			XFS_BMAP_INIT(args->flist, args->firstblock);
+			error = xfs_attr_leaf_to_node(args);
+			if (!error) {
+				error = xfs_bmap_finish(&args->trans,
+							args->flist,
+							*args->firstblock,
+							&committed);
+			}
+			if (error) {
+				ASSERT(committed);
+				args->trans = NULL;
+				xfs_bmap_cancel(args->flist);
+				goto out;
+			}
+
+			/*
+			 * bmap_finish() may have committed the last trans
+			 * and started a new one.  We need the inode to be
+			 * in all transactions.
+			 */
+			if (committed) {
+				xfs_trans_ijoin(args->trans, dp, XFS_ILOCK_EXCL);
+				xfs_trans_ihold(args->trans, dp);
+			}
+
+			/*
+			 * Commit the node conversion and start the next
+			 * trans in the chain.
+			 */
+			if ((error = xfs_attr_rolltrans(&args->trans, dp)))
+				goto out;
+
+			goto restart;
+		}
+
+		/*
+		 * Split as many Btree elements as required.
+		 * This code tracks the new and old attr's location
+		 * in the index/blkno/rmtblkno/rmtblkcnt fields and
+		 * in the index2/blkno2/rmtblkno2/rmtblkcnt2 fields.
+		 */
+		XFS_BMAP_INIT(args->flist, args->firstblock);
+		error = xfs_da_split(state);
+		if (!error) {
+			error = xfs_bmap_finish(&args->trans, args->flist,
+						*args->firstblock, &committed);
+		}
+		if (error) {
+			ASSERT(committed);
+			args->trans = NULL;
+			xfs_bmap_cancel(args->flist);
+			goto out;
+		}
+
+		/*
+		 * bmap_finish() may have committed the last trans and started
+		 * a new one.  We need the inode to be in all transactions.
+		 */
+		if (committed) {
+			xfs_trans_ijoin(args->trans, dp, XFS_ILOCK_EXCL);
+			xfs_trans_ihold(args->trans, dp);
+		}
+	} else {
+		/*
+		 * Addition succeeded, update Btree hashvals.
+		 */
+		xfs_da_fixhashpath(state, &state->path);
+	}
+
+	/*
+	 * Kill the state structure, we're done with it and need to
+	 * allow the buffers to come back later.
+	 */
+	xfs_da_state_free(state);
+	state = NULL;
+
+	/*
+	 * Commit the leaf addition or btree split and start the next
+	 * trans in the chain.
+	 */
+	if ((error = xfs_attr_rolltrans(&args->trans, dp)))
+		goto out;
+
+	/*
+	 * If there was an out-of-line value, allocate the blocks we
+	 * identified for its storage and copy the value.  This is done
+	 * after we create the attribute so that we don't overflow the
+	 * maximum size of a transaction and/or hit a deadlock.
+	 */
+	if (args->rmtblkno > 0) {
+		error = xfs_attr_rmtval_set(args);
+		if (error)
+			return(error);
+	}
+
+	/*
+	 * If this is an atomic rename operation, we must "flip" the
+	 * incomplete flags on the "new" and "old" attribute/value pairs
+	 * so that one disappears and one appears atomically.  Then we
+	 * must remove the "old" attribute/value pair.
+	 */
+	if (args->rename) {
+		/*
+		 * In a separate transaction, set the incomplete flag on the
+		 * "old" attr and clear the incomplete flag on the "new" attr.
+		 */
+		error = xfs_attr_leaf_flipflags(args);
+		if (error)
+			goto out;
+
+		/*
+		 * Dismantle the "old" attribute/value pair by removing
+		 * a "remote" value (if it exists).
+		 */
+		args->index = args->index2;
+		args->blkno = args->blkno2;
+		args->rmtblkno = args->rmtblkno2;
+		args->rmtblkcnt = args->rmtblkcnt2;
+		if (args->rmtblkno) {
+			error = xfs_attr_rmtval_remove(args);
+			if (error)
+				return(error);
+		}
+
+		/*
+		 * Re-find the "old" attribute entry after any split ops.
+		 * The INCOMPLETE flag means that we will find the "old"
+		 * attr, not the "new" one.
+		 */
+		args->flags |= XFS_ATTR_INCOMPLETE;
+		state = xfs_da_state_alloc();
+		state->args = args;
+		state->mp = mp;
+		state->blocksize = state->mp->m_sb.sb_blocksize;
+		state->node_ents = state->mp->m_attr_node_ents;
+		state->inleaf = 0;
+		error = xfs_da_node_lookup_int(state, &retval);
+		if (error)
+			goto out;
+
+		/*
+		 * Remove the name and update the hashvals in the tree.
+		 */
+		blk = &state->path.blk[ state->path.active-1 ];
+		ASSERT(blk->magic == XFS_ATTR_LEAF_MAGIC);
+		error = xfs_attr_leaf_remove(blk->bp, args);
+		xfs_da_fixhashpath(state, &state->path);
+
+		/*
+		 * Check to see if the tree needs to be collapsed.
+		 */
+		if (retval && (state->path.active > 1)) {
+			XFS_BMAP_INIT(args->flist, args->firstblock);
+			error = xfs_da_join(state);
+			if (!error) {
+				error = xfs_bmap_finish(&args->trans,
+							args->flist,
+							*args->firstblock,
+							&committed);
+			}
+			if (error) {
+				ASSERT(committed);
+				args->trans = NULL;
+				xfs_bmap_cancel(args->flist);
+				goto out;
+			}
+
+			/*
+			 * bmap_finish() may have committed the last trans
+			 * and started a new one.  We need the inode to be
+			 * in all transactions.
+			 */
+			if (committed) {
+				xfs_trans_ijoin(args->trans, dp, XFS_ILOCK_EXCL);
+				xfs_trans_ihold(args->trans, dp);
+			}
+		}
+
+		/*
+		 * Commit and start the next trans in the chain.
+		 */
+		if ((error = xfs_attr_rolltrans(&args->trans, dp)))
+			goto out;
+
+	} else if (args->rmtblkno > 0) {
+		/*
+		 * Added a "remote" value, just clear the incomplete flag.
+		 */
+		error = xfs_attr_leaf_clearflag(args);
+		if (error)
+			goto out;
+	}
+	retval = error = 0;
+
+out:
+	if (state)
+		xfs_da_state_free(state);
+	if (error)
+		return(error);
+	return(retval);
+}
+
+/*
+ * Remove a name from a B-tree attribute list.
+ *
+ * This will involve walking down the Btree, and may involve joining
+ * leaf nodes and even joining intermediate nodes up to and including
+ * the root node (a special case of an intermediate node).
+ */
+STATIC int
+xfs_attr_node_removename(xfs_da_args_t *args)
+{
+	xfs_da_state_t *state;
+	xfs_da_state_blk_t *blk;
+	xfs_inode_t *dp;
+	xfs_dabuf_t *bp;
+	int retval, error, committed;
+
+	/*
+	 * Tie a string around our finger to remind us where we are.
+	 */
+	dp = args->dp;
+	state = xfs_da_state_alloc();
+	state->args = args;
+	state->mp = dp->i_mount;
+	state->blocksize = state->mp->m_sb.sb_blocksize;
+	state->node_ents = state->mp->m_attr_node_ents;
+
+	/*
+	 * Search to see if name exists, and get back a pointer to it.
+	 */
+	error = xfs_da_node_lookup_int(state, &retval);
+	if (error || (retval != EEXIST)) {
+		if (error == 0)
+			error = retval;
+		goto out;
+	}
+
+	/*
+	 * If there is an out-of-line value, de-allocate the blocks.
+	 * This is done before we remove the attribute so that we don't
+	 * overflow the maximum size of a transaction and/or hit a deadlock.
+	 */
+	blk = &state->path.blk[ state->path.active-1 ];
+	ASSERT(blk->bp != NULL);
+	ASSERT(blk->magic == XFS_ATTR_LEAF_MAGIC);
+	if (args->rmtblkno > 0) {
+		/*
+		 * Fill in disk block numbers in the state structure
+		 * so that we can get the buffers back after we commit
+		 * several transactions in the following calls.
+		 */
+		error = xfs_attr_fillstate(state);
+		if (error)
+			goto out;
+
+		/*
+		 * Mark the attribute as INCOMPLETE, then bunmapi() the
+		 * remote value.
+		 */
+		error = xfs_attr_leaf_setflag(args);
+		if (error)
+			goto out;
+		error = xfs_attr_rmtval_remove(args);
+		if (error)
+			goto out;
+
+		/*
+		 * Refill the state structure with buffers, the prior calls
+		 * released our buffers.
+		 */
+		error = xfs_attr_refillstate(state);
+		if (error)
+			goto out;
+	}
+
+	/*
+	 * Remove the name and update the hashvals in the tree.
+	 */
+	blk = &state->path.blk[ state->path.active-1 ];
+	ASSERT(blk->magic == XFS_ATTR_LEAF_MAGIC);
+	retval = xfs_attr_leaf_remove(blk->bp, args);
+	xfs_da_fixhashpath(state, &state->path);
+
+	/*
+	 * Check to see if the tree needs to be collapsed.
+	 */
+	if (retval && (state->path.active > 1)) {
+		XFS_BMAP_INIT(args->flist, args->firstblock);
+		error = xfs_da_join(state);
+		if (!error) {
+			error = xfs_bmap_finish(&args->trans, args->flist,
+						*args->firstblock, &committed);
+		}
+		if (error) {
+			ASSERT(committed);
+			args->trans = NULL;
+			xfs_bmap_cancel(args->flist);
+			goto out;
+		}
+
+		/*
+		 * bmap_finish() may have committed the last trans and started
+		 * a new one.  We need the inode to be in all transactions.
+		 */
+		if (committed) {
+			xfs_trans_ijoin(args->trans, dp, XFS_ILOCK_EXCL);
+			xfs_trans_ihold(args->trans, dp);
+		}
+
+		/*
+		 * Commit the Btree join operation and start a new trans.
+		 */
+		if ((error = xfs_attr_rolltrans(&args->trans, dp)))
+			goto out;
+	}
+
+	/*
+	 * If the result is small enough, push it all into the inode.
+	 */
+	if (xfs_bmap_one_block(dp, XFS_ATTR_FORK)) {
+		/*
+		 * Have to get rid of the copy of this dabuf in the state.
+		 */
+		ASSERT(state->path.active == 1);
+		ASSERT(state->path.blk[0].bp);
+		xfs_da_buf_done(state->path.blk[0].bp);
+		state->path.blk[0].bp = NULL;
+
+		error = xfs_da_read_buf(args->trans, args->dp, 0, -1, &bp,
+						     XFS_ATTR_FORK);
+		if (error)
+			goto out;
+		ASSERT(INT_GET(((xfs_attr_leafblock_t *)
+				      bp->data)->hdr.info.magic, ARCH_CONVERT)
+						       == XFS_ATTR_LEAF_MAGIC);
+
+		if (xfs_attr_shortform_allfit(bp, dp)) {
+			XFS_BMAP_INIT(args->flist, args->firstblock);
+			error = xfs_attr_leaf_to_shortform(bp, args);
+			/* bp is gone due to xfs_da_shrink_inode */
+			if (!error) {
+				error = xfs_bmap_finish(&args->trans,
+							args->flist,
+							*args->firstblock,
+							&committed);
+			}
+			if (error) {
+				ASSERT(committed);
+				args->trans = NULL;
+				xfs_bmap_cancel(args->flist);
+				goto out;
+			}
+
+			/*
+			 * bmap_finish() may have committed the last trans
+			 * and started a new one.  We need the inode to be
+			 * in all transactions.
+			 */
+			if (committed) {
+				xfs_trans_ijoin(args->trans, dp, XFS_ILOCK_EXCL);
+				xfs_trans_ihold(args->trans, dp);
+			}
+		} else
+			xfs_da_brelse(args->trans, bp);
+	}
+	error = 0;
+
+out:
+	xfs_da_state_free(state);
+	return(error);
+}
+
+/*
+ * Fill in the disk block numbers in the state structure for the buffers
+ * that are attached to the state structure.
+ * This is done so that we can quickly reattach ourselves to those buffers
+ * after some set of transaction commit's has released these buffers.
+ */
+STATIC int
+xfs_attr_fillstate(xfs_da_state_t *state)
+{
+	xfs_da_state_path_t *path;
+	xfs_da_state_blk_t *blk;
+	int level;
+
+	/*
+	 * Roll down the "path" in the state structure, storing the on-disk
+	 * block number for those buffers in the "path".
+	 */
+	path = &state->path;
+	ASSERT((path->active >= 0) && (path->active < XFS_DA_NODE_MAXDEPTH));
+	for (blk = path->blk, level = 0; level < path->active; blk++, level++) {
+		if (blk->bp) {
+			blk->disk_blkno = xfs_da_blkno(blk->bp);
+			xfs_da_buf_done(blk->bp);
+			blk->bp = NULL;
+		} else {
+			blk->disk_blkno = 0;
+		}
+	}
+
+	/*
+	 * Roll down the "altpath" in the state structure, storing the on-disk
+	 * block number for those buffers in the "altpath".
+	 */
+	path = &state->altpath;
+	ASSERT((path->active >= 0) && (path->active < XFS_DA_NODE_MAXDEPTH));
+	for (blk = path->blk, level = 0; level < path->active; blk++, level++) {
+		if (blk->bp) {
+			blk->disk_blkno = xfs_da_blkno(blk->bp);
+			xfs_da_buf_done(blk->bp);
+			blk->bp = NULL;
+		} else {
+			blk->disk_blkno = 0;
+		}
+	}
+
+	return(0);
+}
+
+/*
+ * Reattach the buffers to the state structure based on the disk block
+ * numbers stored in the state structure.
+ * This is done after some set of transaction commit's has released those
+ * buffers from our grip.
+ */
+STATIC int
+xfs_attr_refillstate(xfs_da_state_t *state)
+{
+	xfs_da_state_path_t *path;
+	xfs_da_state_blk_t *blk;
+	int level, error;
+
+	/*
+	 * Roll down the "path" in the state structure, storing the on-disk
+	 * block number for those buffers in the "path".
+	 */
+	path = &state->path;
+	ASSERT((path->active >= 0) && (path->active < XFS_DA_NODE_MAXDEPTH));
+	for (blk = path->blk, level = 0; level < path->active; blk++, level++) {
+		if (blk->disk_blkno) {
+			error = xfs_da_read_buf(state->args->trans,
+						state->args->dp,
+						blk->blkno, blk->disk_blkno,
+						&blk->bp, XFS_ATTR_FORK);
+			if (error)
+				return(error);
+		} else {
+			blk->bp = NULL;
+		}
+	}
+
+	/*
+	 * Roll down the "altpath" in the state structure, storing the on-disk
+	 * block number for those buffers in the "altpath".
+	 */
+	path = &state->altpath;
+	ASSERT((path->active >= 0) && (path->active < XFS_DA_NODE_MAXDEPTH));
+	for (blk = path->blk, level = 0; level < path->active; blk++, level++) {
+		if (blk->disk_blkno) {
+			error = xfs_da_read_buf(state->args->trans,
+						state->args->dp,
+						blk->blkno, blk->disk_blkno,
+						&blk->bp, XFS_ATTR_FORK);
+			if (error)
+				return(error);
+		} else {
+			blk->bp = NULL;
+		}
+	}
+
+	return(0);
+}
+
+/*
+ * Look up a filename in a node attribute list.
+ *
+ * This routine gets called for any attribute fork that has more than one
+ * block, ie: both true Btree attr lists and for single-leaf-blocks with
+ * "remote" values taking up more blocks.
+ */
+int
+xfs_attr_node_get(xfs_da_args_t *args)
+{
+	xfs_da_state_t *state;
+	xfs_da_state_blk_t *blk;
+	int error, retval;
+	int i;
+
+	state = xfs_da_state_alloc();
+	state->args = args;
+	state->mp = args->dp->i_mount;
+	state->blocksize = state->mp->m_sb.sb_blocksize;
+	state->node_ents = state->mp->m_attr_node_ents;
+
+	/*
+	 * Search to see if name exists, and get back a pointer to it.
+	 */
+	error = xfs_da_node_lookup_int(state, &retval);
+	if (error) {
+		retval = error;
+	} else if (retval == EEXIST) {
+		blk = &state->path.blk[ state->path.active-1 ];
+		ASSERT(blk->bp != NULL);
+		ASSERT(blk->magic == XFS_ATTR_LEAF_MAGIC);
+
+		/*
+		 * Get the value, local or "remote"
+		 */
+		retval = xfs_attr_leaf_getvalue(blk->bp, args);
+		if (!retval && (args->rmtblkno > 0)
+		    && !(args->flags & ATTR_KERNOVAL)) {
+			retval = xfs_attr_rmtval_get(args);
+		}
+	}
+
+	/*
+	 * If not in a transaction, we have to release all the buffers.
+	 */
+	for (i = 0; i < state->path.active; i++) {
+		xfs_da_brelse(args->trans, state->path.blk[i].bp);
+		state->path.blk[i].bp = NULL;
+	}
+
+	xfs_da_state_free(state);
+	return(retval);
+}
+
+STATIC int							/* error */
+xfs_attr_node_list(xfs_attr_list_context_t *context)
+{
+	attrlist_cursor_kern_t *cursor;
+	xfs_attr_leafblock_t *leaf;
+	xfs_da_intnode_t *node;
+	xfs_da_node_entry_t *btree;
+	int error, i;
+	xfs_dabuf_t *bp;
+
+	cursor = context->cursor;
+	cursor->initted = 1;
+
+	/*
+	 * Do all sorts of validation on the passed-in cursor structure.
+	 * If anything is amiss, ignore the cursor and look up the hashval
+	 * starting from the btree root.
+	 */
+	bp = NULL;
+	if (cursor->blkno > 0) {
+		error = xfs_da_read_buf(NULL, context->dp, cursor->blkno, -1,
+					      &bp, XFS_ATTR_FORK);
+		if ((error != 0) && (error != EFSCORRUPTED))
+			return(error);
+		if (bp) {
+			node = bp->data;
+			switch (INT_GET(node->hdr.info.magic, ARCH_CONVERT)) {
+			case XFS_DA_NODE_MAGIC:
+				xfs_attr_trace_l_cn("wrong blk", context, node);
+				xfs_da_brelse(NULL, bp);
+				bp = NULL;
+				break;
+			case XFS_ATTR_LEAF_MAGIC:
+				leaf = bp->data;
+				if (cursor->hashval >
+				    INT_GET(leaf->entries[
+					 INT_GET(leaf->hdr.count,
+						ARCH_CONVERT)-1].hashval,
+							ARCH_CONVERT)) {
+					xfs_attr_trace_l_cl("wrong blk",
+							   context, leaf);
+					xfs_da_brelse(NULL, bp);
+					bp = NULL;
+				} else if (cursor->hashval <=
+					     INT_GET(leaf->entries[0].hashval,
+							ARCH_CONVERT)) {
+					xfs_attr_trace_l_cl("maybe wrong blk",
+							   context, leaf);
+					xfs_da_brelse(NULL, bp);
+					bp = NULL;
+				}
+				break;
+			default:
+				xfs_attr_trace_l_c("wrong blk - ??", context);
+				xfs_da_brelse(NULL, bp);
+				bp = NULL;
+			}
+		}
+	}
+
+	/*
+	 * We did not find what we expected given the cursor's contents,
+	 * so we start from the top and work down based on the hash value.
+	 * Note that start of node block is same as start of leaf block.
+	 */
+	if (bp == NULL) {
+		cursor->blkno = 0;
+		for (;;) {
+			error = xfs_da_read_buf(NULL, context->dp,
+						      cursor->blkno, -1, &bp,
+						      XFS_ATTR_FORK);
+			if (error)
+				return(error);
+			if (unlikely(bp == NULL)) {
+				XFS_ERROR_REPORT("xfs_attr_node_list(2)",
+						 XFS_ERRLEVEL_LOW,
+						 context->dp->i_mount);
+				return(XFS_ERROR(EFSCORRUPTED));
+			}
+			node = bp->data;
+			if (INT_GET(node->hdr.info.magic, ARCH_CONVERT)
+							== XFS_ATTR_LEAF_MAGIC)
+				break;
+			if (unlikely(INT_GET(node->hdr.info.magic, ARCH_CONVERT)
+							!= XFS_DA_NODE_MAGIC)) {
+				XFS_CORRUPTION_ERROR("xfs_attr_node_list(3)",
+						     XFS_ERRLEVEL_LOW,
+						     context->dp->i_mount,
+						     node);
+				xfs_da_brelse(NULL, bp);
+				return(XFS_ERROR(EFSCORRUPTED));
+			}
+			btree = node->btree;
+			for (i = 0;
+				i < INT_GET(node->hdr.count, ARCH_CONVERT);
+								btree++, i++) {
+				if (cursor->hashval
+						<= INT_GET(btree->hashval,
+							    ARCH_CONVERT)) {
+					cursor->blkno = INT_GET(btree->before, ARCH_CONVERT);
+					xfs_attr_trace_l_cb("descending",
+							    context, btree);
+					break;
+				}
+			}
+			if (i == INT_GET(node->hdr.count, ARCH_CONVERT)) {
+				xfs_da_brelse(NULL, bp);
+				return(0);
+			}
+			xfs_da_brelse(NULL, bp);
+		}
+	}
+	ASSERT(bp != NULL);
+
+	/*
+	 * Roll upward through the blocks, processing each leaf block in
+	 * order.  As long as there is space in the result buffer, keep
+	 * adding the information.
+	 */
+	for (;;) {
+		leaf = bp->data;
+		if (unlikely(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT)
+						!= XFS_ATTR_LEAF_MAGIC)) {
+			XFS_CORRUPTION_ERROR("xfs_attr_node_list(4)",
+					     XFS_ERRLEVEL_LOW,
+					     context->dp->i_mount, leaf);
+			xfs_da_brelse(NULL, bp);
+			return(XFS_ERROR(EFSCORRUPTED));
+		}
+		error = xfs_attr_leaf_list_int(bp, context);
+		if (error || (INT_ISZERO(leaf->hdr.info.forw, ARCH_CONVERT)))
+			break;	/* not really an error, buffer full or EOF */
+		cursor->blkno = INT_GET(leaf->hdr.info.forw, ARCH_CONVERT);
+		xfs_da_brelse(NULL, bp);
+		error = xfs_da_read_buf(NULL, context->dp, cursor->blkno, -1,
+					      &bp, XFS_ATTR_FORK);
+		if (error)
+			return(error);
+		if (unlikely((bp == NULL))) {
+			XFS_ERROR_REPORT("xfs_attr_node_list(5)",
+					 XFS_ERRLEVEL_LOW,
+					 context->dp->i_mount);
+			return(XFS_ERROR(EFSCORRUPTED));
+		}
+	}
+	xfs_da_brelse(NULL, bp);
+	return(0);
+}
+
+
+/*========================================================================
+ * External routines for manipulating out-of-line attribute values.
+ *========================================================================*/
+
+/*
+ * Read the value associated with an attribute from the out-of-line buffer
+ * that we stored it in.
+ */
+STATIC int
+xfs_attr_rmtval_get(xfs_da_args_t *args)
+{
+	xfs_bmbt_irec_t map[ATTR_RMTVALUE_MAPSIZE];
+	xfs_mount_t *mp;
+	xfs_daddr_t dblkno;
+	xfs_caddr_t dst;
+	xfs_buf_t *bp;
+	int nmap, error, tmp, valuelen, blkcnt, i;
+	xfs_dablk_t lblkno;
+
+	ASSERT(!(args->flags & ATTR_KERNOVAL));
+
+	mp = args->dp->i_mount;
+	dst = args->value;
+	valuelen = args->valuelen;
+	lblkno = args->rmtblkno;
+	while (valuelen > 0) {
+		nmap = ATTR_RMTVALUE_MAPSIZE;
+		error = xfs_bmapi(args->trans, args->dp, (xfs_fileoff_t)lblkno,
+				  args->rmtblkcnt,
+				  XFS_BMAPI_ATTRFORK | XFS_BMAPI_METADATA,
+				  NULL, 0, map, &nmap, NULL);
+		if (error)
+			return(error);
+		ASSERT(nmap >= 1);
+
+		for (i = 0; (i < nmap) && (valuelen > 0); i++) {
+			ASSERT((map[i].br_startblock != DELAYSTARTBLOCK) &&
+			       (map[i].br_startblock != HOLESTARTBLOCK));
+			dblkno = XFS_FSB_TO_DADDR(mp, map[i].br_startblock);
+			blkcnt = XFS_FSB_TO_BB(mp, map[i].br_blockcount);
+			error = xfs_read_buf(mp, mp->m_ddev_targp, dblkno,
+					     blkcnt, XFS_BUF_LOCK, &bp);
+			if (error)
+				return(error);
+
+			tmp = (valuelen < XFS_BUF_SIZE(bp))
+				? valuelen : XFS_BUF_SIZE(bp);
+			xfs_biomove(bp, 0, tmp, dst, XFS_B_READ);
+			xfs_buf_relse(bp);
+			dst += tmp;
+			valuelen -= tmp;
+
+			lblkno += map[i].br_blockcount;
+		}
+	}
+	ASSERT(valuelen == 0);
+	return(0);
+}
+
+/*
+ * Write the value associated with an attribute into the out-of-line buffer
+ * that we have defined for it.
+ */
+STATIC int
+xfs_attr_rmtval_set(xfs_da_args_t *args)
+{
+	xfs_mount_t *mp;
+	xfs_fileoff_t lfileoff;
+	xfs_inode_t *dp;
+	xfs_bmbt_irec_t map;
+	xfs_daddr_t dblkno;
+	xfs_caddr_t src;
+	xfs_buf_t *bp;
+	xfs_dablk_t lblkno;
+	int blkcnt, valuelen, nmap, error, tmp, committed;
+
+	dp = args->dp;
+	mp = dp->i_mount;
+	src = args->value;
+
+	/*
+	 * Find a "hole" in the attribute address space large enough for
+	 * us to drop the new attribute's value into.
+	 */
+	blkcnt = XFS_B_TO_FSB(mp, args->valuelen);
+	lfileoff = 0;
+	error = xfs_bmap_first_unused(args->trans, args->dp, blkcnt, &lfileoff,
+						   XFS_ATTR_FORK);
+	if (error) {
+		return(error);
+	}
+	args->rmtblkno = lblkno = (xfs_dablk_t)lfileoff;
+	args->rmtblkcnt = blkcnt;
+
+	/*
+	 * Roll through the "value", allocating blocks on disk as required.
+	 */
+	while (blkcnt > 0) {
+		/*
+		 * Allocate a single extent, up to the size of the value.
+		 */
+		XFS_BMAP_INIT(args->flist, args->firstblock);
+		nmap = 1;
+		error = xfs_bmapi(args->trans, dp, (xfs_fileoff_t)lblkno,
+				  blkcnt,
+				  XFS_BMAPI_ATTRFORK | XFS_BMAPI_METADATA |
+							XFS_BMAPI_WRITE,
+				  args->firstblock, args->total, &map, &nmap,
+				  args->flist);
+		if (!error) {
+			error = xfs_bmap_finish(&args->trans, args->flist,
+						*args->firstblock, &committed);
+		}
+		if (error) {
+			ASSERT(committed);
+			args->trans = NULL;
+			xfs_bmap_cancel(args->flist);
+			return(error);
+		}
+
+		/*
+		 * bmap_finish() may have committed the last trans and started
+		 * a new one.  We need the inode to be in all transactions.
+		 */
+		if (committed) {
+			xfs_trans_ijoin(args->trans, dp, XFS_ILOCK_EXCL);
+			xfs_trans_ihold(args->trans, dp);
+		}
+
+		ASSERT(nmap == 1);
+		ASSERT((map.br_startblock != DELAYSTARTBLOCK) &&
+		       (map.br_startblock != HOLESTARTBLOCK));
+		lblkno += map.br_blockcount;
+		blkcnt -= map.br_blockcount;
+
+		/*
+		 * Start the next trans in the chain.
+		 */
+		if ((error = xfs_attr_rolltrans(&args->trans, dp)))
+			return (error);
+	}
+
+	/*
+	 * Roll through the "value", copying the attribute value to the
+	 * already-allocated blocks.  Blocks are written synchronously
+	 * so that we can know they are all on disk before we turn off
+	 * the INCOMPLETE flag.
+	 */
+	lblkno = args->rmtblkno;
+	valuelen = args->valuelen;
+	while (valuelen > 0) {
+		/*
+		 * Try to remember where we decided to put the value.
+		 */
+		XFS_BMAP_INIT(args->flist, args->firstblock);
+		nmap = 1;
+		error = xfs_bmapi(NULL, dp, (xfs_fileoff_t)lblkno,
+				  args->rmtblkcnt,
+				  XFS_BMAPI_ATTRFORK | XFS_BMAPI_METADATA,
+				  args->firstblock, 0, &map, &nmap, NULL);
+		if (error) {
+			return(error);
+		}
+		ASSERT(nmap == 1);
+		ASSERT((map.br_startblock != DELAYSTARTBLOCK) &&
+		       (map.br_startblock != HOLESTARTBLOCK));
+
+		dblkno = XFS_FSB_TO_DADDR(mp, map.br_startblock),
+		blkcnt = XFS_FSB_TO_BB(mp, map.br_blockcount);
+
+		bp = xfs_buf_get_flags(mp->m_ddev_targp, dblkno,
+							blkcnt, XFS_BUF_LOCK);
+		ASSERT(bp);
+		ASSERT(!XFS_BUF_GETERROR(bp));
+
+		tmp = (valuelen < XFS_BUF_SIZE(bp)) ? valuelen :
+							XFS_BUF_SIZE(bp);
+		xfs_biomove(bp, 0, tmp, src, XFS_B_WRITE);
+		if (tmp < XFS_BUF_SIZE(bp))
+			xfs_biozero(bp, tmp, XFS_BUF_SIZE(bp) - tmp);
+		if ((error = xfs_bwrite(mp, bp))) {/* GROT: NOTE: synchronous write */
+			return (error);
+		}
+		src += tmp;
+		valuelen -= tmp;
+
+		lblkno += map.br_blockcount;
+	}
+	ASSERT(valuelen == 0);
+	return(0);
+}
+
+/*
+ * Remove the value associated with an attribute by deleting the
+ * out-of-line buffer that it is stored on.
+ */
+STATIC int
+xfs_attr_rmtval_remove(xfs_da_args_t *args)
+{
+	xfs_mount_t *mp;
+	xfs_bmbt_irec_t map;
+	xfs_buf_t *bp;
+	xfs_daddr_t dblkno;
+	xfs_dablk_t lblkno;
+	int valuelen, blkcnt, nmap, error, done, committed;
+
+	mp = args->dp->i_mount;
+
+	/*
+	 * Roll through the "value", invalidating the attribute value's
+	 * blocks.
+	 */
+	lblkno = args->rmtblkno;
+	valuelen = args->rmtblkcnt;
+	while (valuelen > 0) {
+		/*
+		 * Try to remember where we decided to put the value.
+		 */
+		XFS_BMAP_INIT(args->flist, args->firstblock);
+		nmap = 1;
+		error = xfs_bmapi(NULL, args->dp, (xfs_fileoff_t)lblkno,
+					args->rmtblkcnt,
+					XFS_BMAPI_ATTRFORK | XFS_BMAPI_METADATA,
+					args->firstblock, 0, &map, &nmap,
+					args->flist);
+		if (error) {
+			return(error);
+		}
+		ASSERT(nmap == 1);
+		ASSERT((map.br_startblock != DELAYSTARTBLOCK) &&
+		       (map.br_startblock != HOLESTARTBLOCK));
+
+		dblkno = XFS_FSB_TO_DADDR(mp, map.br_startblock),
+		blkcnt = XFS_FSB_TO_BB(mp, map.br_blockcount);
+
+		/*
+		 * If the "remote" value is in the cache, remove it.
+		 */
+		bp = xfs_incore(mp->m_ddev_targp, dblkno, blkcnt,
+				XFS_INCORE_TRYLOCK);
+		if (bp) {
+			XFS_BUF_STALE(bp);
+			XFS_BUF_UNDELAYWRITE(bp);
+			xfs_buf_relse(bp);
+			bp = NULL;
+		}
+
+		valuelen -= map.br_blockcount;
+
+		lblkno += map.br_blockcount;
+	}
+
+	/*
+	 * Keep de-allocating extents until the remote-value region is gone.
+	 */
+	lblkno = args->rmtblkno;
+	blkcnt = args->rmtblkcnt;
+	done = 0;
+	while (!done) {
+		XFS_BMAP_INIT(args->flist, args->firstblock);
+		error = xfs_bunmapi(args->trans, args->dp, lblkno, blkcnt,
+				    XFS_BMAPI_ATTRFORK | XFS_BMAPI_METADATA,
+				    1, args->firstblock, args->flist, &done);
+		if (!error) {
+			error = xfs_bmap_finish(&args->trans, args->flist,
+						*args->firstblock, &committed);
+		}
+		if (error) {
+			ASSERT(committed);
+			args->trans = NULL;
+			xfs_bmap_cancel(args->flist);
+			return(error);
+		}
+
+		/*
+		 * bmap_finish() may have committed the last trans and started
+		 * a new one.  We need the inode to be in all transactions.
+		 */
+		if (committed) {
+			xfs_trans_ijoin(args->trans, args->dp, XFS_ILOCK_EXCL);
+			xfs_trans_ihold(args->trans, args->dp);
+		}
+
+		/*
+		 * Close out trans and start the next one in the chain.
+		 */
+		if ((error = xfs_attr_rolltrans(&args->trans, args->dp)))
+			return (error);
+	}
+	return(0);
+}
+
+#if defined(XFS_ATTR_TRACE)
+/*
+ * Add a trace buffer entry for an attr_list context structure.
+ */
+void
+xfs_attr_trace_l_c(char *where, struct xfs_attr_list_context *context)
+{
+	xfs_attr_trace_enter(XFS_ATTR_KTRACE_L_C, where,
+		(__psunsigned_t)context->dp,
+		(__psunsigned_t)context->cursor->hashval,
+		(__psunsigned_t)context->cursor->blkno,
+		(__psunsigned_t)context->cursor->offset,
+		(__psunsigned_t)context->alist,
+		(__psunsigned_t)context->bufsize,
+		(__psunsigned_t)context->count,
+		(__psunsigned_t)context->firstu,
+		(__psunsigned_t)
+			((context->count > 0) &&
+			!(context->flags & (ATTR_KERNAMELS|ATTR_KERNOVAL)))
+				? (ATTR_ENTRY(context->alist,
+					      context->count-1)->a_valuelen)
+				: 0,
+		(__psunsigned_t)context->dupcnt,
+		(__psunsigned_t)context->flags,
+		(__psunsigned_t)NULL,
+		(__psunsigned_t)NULL,
+		(__psunsigned_t)NULL);
+}
+
+/*
+ * Add a trace buffer entry for a context structure and a Btree node.
+ */
+void
+xfs_attr_trace_l_cn(char *where, struct xfs_attr_list_context *context,
+			 struct xfs_da_intnode *node)
+{
+	xfs_attr_trace_enter(XFS_ATTR_KTRACE_L_CN, where,
+		(__psunsigned_t)context->dp,
+		(__psunsigned_t)context->cursor->hashval,
+		(__psunsigned_t)context->cursor->blkno,
+		(__psunsigned_t)context->cursor->offset,
+		(__psunsigned_t)context->alist,
+		(__psunsigned_t)context->bufsize,
+		(__psunsigned_t)context->count,
+		(__psunsigned_t)context->firstu,
+		(__psunsigned_t)
+			((context->count > 0) &&
+			!(context->flags & (ATTR_KERNAMELS|ATTR_KERNOVAL)))
+				? (ATTR_ENTRY(context->alist,
+					      context->count-1)->a_valuelen)
+				: 0,
+		(__psunsigned_t)context->dupcnt,
+		(__psunsigned_t)context->flags,
+		(__psunsigned_t)INT_GET(node->hdr.count, ARCH_CONVERT),
+		(__psunsigned_t)INT_GET(node->btree[0].hashval, ARCH_CONVERT),
+		(__psunsigned_t)INT_GET(node->btree[INT_GET(node->hdr.count, ARCH_CONVERT)-1].hashval, ARCH_CONVERT));
+}
+
+/*
+ * Add a trace buffer entry for a context structure and a Btree element.
+ */
+void
+xfs_attr_trace_l_cb(char *where, struct xfs_attr_list_context *context,
+			  struct xfs_da_node_entry *btree)
+{
+	xfs_attr_trace_enter(XFS_ATTR_KTRACE_L_CB, where,
+		(__psunsigned_t)context->dp,
+		(__psunsigned_t)context->cursor->hashval,
+		(__psunsigned_t)context->cursor->blkno,
+		(__psunsigned_t)context->cursor->offset,
+		(__psunsigned_t)context->alist,
+		(__psunsigned_t)context->bufsize,
+		(__psunsigned_t)context->count,
+		(__psunsigned_t)context->firstu,
+		(__psunsigned_t)
+			((context->count > 0) &&
+			!(context->flags & (ATTR_KERNAMELS|ATTR_KERNOVAL)))
+				? (ATTR_ENTRY(context->alist,
+					      context->count-1)->a_valuelen)
+				: 0,
+		(__psunsigned_t)context->dupcnt,
+		(__psunsigned_t)context->flags,
+		(__psunsigned_t)INT_GET(btree->hashval, ARCH_CONVERT),
+		(__psunsigned_t)INT_GET(btree->before, ARCH_CONVERT),
+		(__psunsigned_t)NULL);
+}
+
+/*
+ * Add a trace buffer entry for a context structure and a leaf block.
+ */
+void
+xfs_attr_trace_l_cl(char *where, struct xfs_attr_list_context *context,
+			      struct xfs_attr_leafblock *leaf)
+{
+	xfs_attr_trace_enter(XFS_ATTR_KTRACE_L_CL, where,
+		(__psunsigned_t)context->dp,
+		(__psunsigned_t)context->cursor->hashval,
+		(__psunsigned_t)context->cursor->blkno,
+		(__psunsigned_t)context->cursor->offset,
+		(__psunsigned_t)context->alist,
+		(__psunsigned_t)context->bufsize,
+		(__psunsigned_t)context->count,
+		(__psunsigned_t)context->firstu,
+		(__psunsigned_t)
+			((context->count > 0) &&
+			!(context->flags & (ATTR_KERNAMELS|ATTR_KERNOVAL)))
+				? (ATTR_ENTRY(context->alist,
+					      context->count-1)->a_valuelen)
+				: 0,
+		(__psunsigned_t)context->dupcnt,
+		(__psunsigned_t)context->flags,
+		(__psunsigned_t)INT_GET(leaf->hdr.count, ARCH_CONVERT),
+		(__psunsigned_t)INT_GET(leaf->entries[0].hashval, ARCH_CONVERT),
+		(__psunsigned_t)INT_GET(leaf->entries[INT_GET(leaf->hdr.count, ARCH_CONVERT)-1].hashval, ARCH_CONVERT));
+}
+
+/*
+ * Add a trace buffer entry for the arguments given to the routine,
+ * generic form.
+ */
+void
+xfs_attr_trace_enter(int type, char *where,
+			 __psunsigned_t a2, __psunsigned_t a3,
+			 __psunsigned_t a4, __psunsigned_t a5,
+			 __psunsigned_t a6, __psunsigned_t a7,
+			 __psunsigned_t a8, __psunsigned_t a9,
+			 __psunsigned_t a10, __psunsigned_t a11,
+			 __psunsigned_t a12, __psunsigned_t a13,
+			 __psunsigned_t a14, __psunsigned_t a15)
+{
+	ASSERT(xfs_attr_trace_buf);
+	ktrace_enter(xfs_attr_trace_buf, (void *)((__psunsigned_t)type),
+					 (void *)where,
+					 (void *)a2,  (void *)a3,  (void *)a4,
+					 (void *)a5,  (void *)a6,  (void *)a7,
+					 (void *)a8,  (void *)a9,  (void *)a10,
+					 (void *)a11, (void *)a12, (void *)a13,
+					 (void *)a14, (void *)a15);
+}
+#endif	/* XFS_ATTR_TRACE */
+
+
+/*========================================================================
+ * System (pseudo) namespace attribute interface routines.
+ *========================================================================*/
+
+STATIC int
+posix_acl_access_set(
+	vnode_t	*vp, char *name, void *data, size_t size, int xflags)
+{
+	return xfs_acl_vset(vp, data, size, _ACL_TYPE_ACCESS);
+}
+
+STATIC int
+posix_acl_access_remove(
+	struct vnode *vp, char *name, int xflags)
+{
+	return xfs_acl_vremove(vp, _ACL_TYPE_ACCESS);
+}
+
+STATIC int
+posix_acl_access_get(
+	vnode_t *vp, char *name, void *data, size_t size, int xflags)
+{
+	return xfs_acl_vget(vp, data, size, _ACL_TYPE_ACCESS);
+}
+
+STATIC int
+posix_acl_access_exists(
+	vnode_t *vp)
+{
+	return xfs_acl_vhasacl_access(vp);
+}
+
+STATIC int
+posix_acl_default_set(
+	vnode_t	*vp, char *name, void *data, size_t size, int xflags)
+{
+	return xfs_acl_vset(vp, data, size, _ACL_TYPE_DEFAULT);
+}
+
+STATIC int
+posix_acl_default_get(
+	vnode_t *vp, char *name, void *data, size_t size, int xflags)
+{
+	return xfs_acl_vget(vp, data, size, _ACL_TYPE_DEFAULT);
+}
+
+STATIC int
+posix_acl_default_remove(
+	struct vnode *vp, char *name, int xflags)
+{
+	return xfs_acl_vremove(vp, _ACL_TYPE_DEFAULT);
+}
+
+STATIC int
+posix_acl_default_exists(
+	vnode_t *vp)
+{
+	return xfs_acl_vhasacl_default(vp);
+}
+
+struct attrnames posix_acl_access = {
+	.attr_name	= "posix_acl_access",
+	.attr_namelen	= sizeof("posix_acl_access") - 1,
+	.attr_get	= posix_acl_access_get,
+	.attr_set	= posix_acl_access_set,
+	.attr_remove	= posix_acl_access_remove,
+	.attr_exists	= posix_acl_access_exists,
+};
+
+struct attrnames posix_acl_default = {
+	.attr_name	= "posix_acl_default",
+	.attr_namelen	= sizeof("posix_acl_default") - 1,
+	.attr_get	= posix_acl_default_get,
+	.attr_set	= posix_acl_default_set,
+	.attr_remove	= posix_acl_default_remove,
+	.attr_exists	= posix_acl_default_exists,
+};
+
+struct attrnames *attr_system_names[] =
+	{ &posix_acl_access, &posix_acl_default };
+
+
+/*========================================================================
+ * Namespace-prefix-style attribute name interface routines.
+ *========================================================================*/
+
+STATIC int
+attr_generic_set(
+	struct vnode *vp, char *name, void *data, size_t size, int xflags)
+{
+	int 	error;
+
+	VOP_ATTR_SET(vp, name, data, size, xflags, NULL, error);
+	return -error;
+}
+
+STATIC int
+attr_generic_get(
+	struct vnode *vp, char *name, void *data, size_t size, int xflags)
+{
+	int	error, asize = size;
+
+	VOP_ATTR_GET(vp, name, data, &asize, xflags, NULL, error);
+	if (!error)
+		return asize;
+	return -error;
+}
+
+STATIC int
+attr_generic_remove(
+	struct vnode *vp, char *name, int xflags)
+{
+	int	error;
+
+	VOP_ATTR_REMOVE(vp, name, xflags, NULL, error);
+	return -error;
+}
+
+STATIC int
+attr_generic_listadd(
+	attrnames_t		*prefix,
+	attrnames_t		*namesp,
+	void			*data,
+	size_t			size,
+	ssize_t			*result)
+{
+	char			*p = data + *result;
+
+	*result += prefix->attr_namelen;
+	*result += namesp->attr_namelen + 1;
+	if (!size)
+		return 0;
+	if (*result > size)
+		return -ERANGE;
+	strcpy(p, prefix->attr_name);
+	p += prefix->attr_namelen;
+	strcpy(p, namesp->attr_name);
+	p += namesp->attr_namelen + 1;
+	return 0;
+}
+
+STATIC int
+attr_system_list(
+	struct vnode		*vp,
+	void			*data,
+	size_t			size,
+	ssize_t			*result)
+{
+	attrnames_t		*namesp;
+	int			i, error = 0;
+
+	for (i = 0; i < ATTR_SYSCOUNT; i++) {
+		namesp = attr_system_names[i];
+		if (!namesp->attr_exists || !namesp->attr_exists(vp))
+			continue;
+		error = attr_generic_listadd(&attr_system, namesp,
+						data, size, result);
+		if (error)
+			break;
+	}
+	return error;
+}
+
+int
+attr_generic_list(
+	struct vnode *vp, void *data, size_t size, int xflags, ssize_t *result)
+{
+	attrlist_cursor_kern_t	cursor = { 0 };
+	int			error;
+
+	VOP_ATTR_LIST(vp, data, size, xflags, &cursor, NULL, error);
+	if (error > 0)
+		return -error;
+	*result = -error;
+	return attr_system_list(vp, data, size, result);
+}
+
+attrnames_t *
+attr_lookup_namespace(
+	char			*name,
+	struct attrnames	**names,
+	int			nnames)
+{
+	int			i;
+
+	for (i = 0; i < nnames; i++)
+		if (!strncmp(name, names[i]->attr_name, names[i]->attr_namelen))
+			return names[i];
+	return NULL;
+}
+
+/*
+ * Some checks to prevent people abusing EAs to get over quota:
+ * - Don't allow modifying user EAs on devices/symlinks;
+ * - Don't allow modifying user EAs if sticky bit set;
+ */
+STATIC int
+attr_user_capable(
+	struct vnode	*vp,
+	cred_t		*cred)
+{
+	struct inode	*inode = LINVFS_GET_IP(vp);
+
+	if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
+		return -EPERM;
+	if (!S_ISREG(inode->i_mode) && !S_ISDIR(inode->i_mode) &&
+	    !capable(CAP_SYS_ADMIN))
+		return -EPERM;
+	if (S_ISDIR(inode->i_mode) && (inode->i_mode & S_ISVTX) &&
+	    (current_fsuid(cred) != inode->i_uid) && !capable(CAP_FOWNER))
+		return -EPERM;
+	return 0;
+}
+
+STATIC int
+attr_trusted_capable(
+	struct vnode	*vp,
+	cred_t		*cred)
+{
+	struct inode	*inode = LINVFS_GET_IP(vp);
+
+	if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
+		return -EPERM;
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+	return 0;
+}
+
+STATIC int
+attr_secure_capable(
+	struct vnode	*vp,
+	cred_t		*cred)
+{
+	return -ENOSECURITY;
+}
+
+STATIC int
+attr_system_set(
+	struct vnode *vp, char *name, void *data, size_t size, int xflags)
+{
+	attrnames_t	*namesp;
+	int		error;
+
+	if (xflags & ATTR_CREATE)
+		return -EINVAL;
+
+	namesp = attr_lookup_namespace(name, attr_system_names, ATTR_SYSCOUNT);
+	if (!namesp)
+		return -EOPNOTSUPP;
+	error = namesp->attr_set(vp, name, data, size, xflags);
+	if (!error)
+		error = vn_revalidate(vp);
+	return error;
+}
+
+STATIC int
+attr_system_get(
+	struct vnode *vp, char *name, void *data, size_t size, int xflags)
+{
+	attrnames_t	*namesp;
+
+	namesp = attr_lookup_namespace(name, attr_system_names, ATTR_SYSCOUNT);
+	if (!namesp)
+		return -EOPNOTSUPP;
+	return namesp->attr_get(vp, name, data, size, xflags);
+}
+
+STATIC int
+attr_system_remove(
+	struct vnode *vp, char *name, int xflags)
+{
+	attrnames_t	*namesp;
+
+	namesp = attr_lookup_namespace(name, attr_system_names, ATTR_SYSCOUNT);
+	if (!namesp)
+		return -EOPNOTSUPP;
+	return namesp->attr_remove(vp, name, xflags);
+}
+
+struct attrnames attr_system = {
+	.attr_name	= "system.",
+	.attr_namelen	= sizeof("system.") - 1,
+	.attr_flag	= ATTR_SYSTEM,
+	.attr_get	= attr_system_get,
+	.attr_set	= attr_system_set,
+	.attr_remove	= attr_system_remove,
+	.attr_capable	= (attrcapable_t)fs_noerr,
+};
+
+struct attrnames attr_trusted = {
+	.attr_name	= "trusted.",
+	.attr_namelen	= sizeof("trusted.") - 1,
+	.attr_flag	= ATTR_ROOT,
+	.attr_get	= attr_generic_get,
+	.attr_set	= attr_generic_set,
+	.attr_remove	= attr_generic_remove,
+	.attr_capable	= attr_trusted_capable,
+};
+
+struct attrnames attr_secure = {
+	.attr_name	= "security.",
+	.attr_namelen	= sizeof("security.") - 1,
+	.attr_flag	= ATTR_SECURE,
+	.attr_get	= attr_generic_get,
+	.attr_set	= attr_generic_set,
+	.attr_remove	= attr_generic_remove,
+	.attr_capable	= attr_secure_capable,
+};
+
+struct attrnames attr_user = {
+	.attr_name	= "user.",
+	.attr_namelen	= sizeof("user.") - 1,
+	.attr_get	= attr_generic_get,
+	.attr_set	= attr_generic_set,
+	.attr_remove	= attr_generic_remove,
+	.attr_capable	= attr_user_capable,
+};
+
+struct attrnames *attr_namespaces[] =
+	{ &attr_system, &attr_trusted, &attr_secure, &attr_user };
diff --git a/fs/xfs/xfs_attr.h b/fs/xfs/xfs_attr.h
new file mode 100644
index 00000000000000..67cd0f5ac1a759
--- /dev/null
+++ b/fs/xfs/xfs_attr.h
@@ -0,0 +1,193 @@
+/*
+ * Copyright (c) 2000, 2002-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_ATTR_H__
+#define	__XFS_ATTR_H__
+
+/*
+ * xfs_attr.h
+ *
+ * Large attribute lists are structured around Btrees where all the data
+ * elements are in the leaf nodes.  Attribute names are hashed into an int,
+ * then that int is used as the index into the Btree.  Since the hashval
+ * of an attribute name may not be unique, we may have duplicate keys.
+ * The internal links in the Btree are logical block offsets into the file.
+ *
+ * Small attribute lists use a different format and are packed as tightly
+ * as possible so as to fit into the literal area of the inode.
+ */
+
+/*========================================================================
+ * External interfaces
+ *========================================================================*/
+
+struct cred;
+struct vnode;
+
+typedef int (*attrset_t)(struct vnode *, char *, void *, size_t, int);
+typedef int (*attrget_t)(struct vnode *, char *, void *, size_t, int);
+typedef int (*attrremove_t)(struct vnode *, char *, int);
+typedef int (*attrexists_t)(struct vnode *);
+typedef int (*attrcapable_t)(struct vnode *, struct cred *);
+
+typedef struct attrnames {
+	char *		attr_name;
+	unsigned int	attr_namelen;
+	unsigned int	attr_flag;
+	attrget_t	attr_get;
+	attrset_t	attr_set;
+	attrremove_t	attr_remove;
+	attrexists_t	attr_exists;
+	attrcapable_t	attr_capable;
+} attrnames_t;
+
+#define ATTR_NAMECOUNT	4
+extern struct attrnames attr_user;
+extern struct attrnames attr_secure;
+extern struct attrnames attr_system;
+extern struct attrnames attr_trusted;
+extern struct attrnames *attr_namespaces[ATTR_NAMECOUNT];
+
+#define ATTR_SYSCOUNT	2
+extern struct attrnames posix_acl_access;
+extern struct attrnames posix_acl_default;
+extern struct attrnames *attr_system_names[ATTR_SYSCOUNT];
+
+extern attrnames_t *attr_lookup_namespace(char *, attrnames_t **, int);
+extern int attr_generic_list(struct vnode *, void *, size_t, int, ssize_t *);
+
+#define ATTR_DONTFOLLOW	0x0001	/* -- unused, from IRIX -- */
+#define ATTR_ROOT	0x0002	/* use attrs in root (trusted) namespace */
+#define ATTR_TRUST	0x0004	/* -- unused, from IRIX -- */
+#define ATTR_SECURE	0x0008	/* use attrs in security namespace */
+#define ATTR_CREATE	0x0010	/* pure create: fail if attr already exists */
+#define ATTR_REPLACE	0x0020	/* pure set: fail if attr does not exist */
+#define ATTR_SYSTEM	0x0100	/* use attrs in system (pseudo) namespace */
+
+#define ATTR_KERNACCESS	0x0400	/* [kernel] iaccess, inode held io-locked */
+#define ATTR_KERNOTIME	0x1000	/* [kernel] don't update inode timestamps */
+#define ATTR_KERNOVAL	0x2000	/* [kernel] get attr size only, not value */
+#define ATTR_KERNAMELS	0x4000	/* [kernel] list attr names (simple list) */
+
+#define ATTR_KERNORMALS	0x0800	/* [kernel] normal attr list: user+secure */
+#define ATTR_KERNROOTLS	0x8000	/* [kernel] include root in the attr list */
+#define ATTR_KERNFULLS	(ATTR_KERNORMALS|ATTR_KERNROOTLS)
+
+/*
+ * The maximum size (into the kernel or returned from the kernel) of an
+ * attribute value or the buffer used for an attr_list() call.  Larger
+ * sizes will result in an ERANGE return code.
+ */
+#define	ATTR_MAX_VALUELEN	(64*1024)	/* max length of a value */
+
+/*
+ * Define how lists of attribute names are returned to the user from
+ * the attr_list() call.  A large, 32bit aligned, buffer is passed in
+ * along with its size.  We put an array of offsets at the top that each
+ * reference an attrlist_ent_t and pack the attrlist_ent_t's at the bottom.
+ */
+typedef struct attrlist {
+	__s32	al_count;	/* number of entries in attrlist */
+	__s32	al_more;	/* T/F: more attrs (do call again) */
+	__s32	al_offset[1];	/* byte offsets of attrs [var-sized] */
+} attrlist_t;
+
+/*
+ * Show the interesting info about one attribute.  This is what the
+ * al_offset[i] entry points to.
+ */
+typedef struct attrlist_ent {	/* data from attr_list() */
+	__u32	a_valuelen;	/* number bytes in value of attr */
+	char	a_name[1];	/* attr name (NULL terminated) */
+} attrlist_ent_t;
+
+/*
+ * Given a pointer to the (char*) buffer containing the attr_list() result,
+ * and an index, return a pointer to the indicated attribute in the buffer.
+ */
+#define	ATTR_ENTRY(buffer, index)		\
+	((attrlist_ent_t *)			\
+	 &((char *)buffer)[ ((attrlist_t *)(buffer))->al_offset[index] ])
+
+/*
+ * Multi-attribute operation vector.
+ */
+typedef struct attr_multiop {
+	int	am_opcode;	/* operation to perform (ATTR_OP_GET, etc.) */
+	int	am_error;	/* [out arg] result of this sub-op (an errno) */
+	char	*am_attrname;	/* attribute name to work with */
+	char	*am_attrvalue;	/* [in/out arg] attribute value (raw bytes) */
+	int	am_length;	/* [in/out arg] length of value */
+	int	am_flags;	/* bitwise OR of attr API flags defined above */
+} attr_multiop_t;
+
+#define ATTR_OP_GET	1	/* return the indicated attr's value */
+#define ATTR_OP_SET	2	/* set/create the indicated attr/value pair */
+#define ATTR_OP_REMOVE	3	/* remove the indicated attr */
+
+/*
+ * Kernel-internal version of the attrlist cursor.
+ */
+typedef struct attrlist_cursor_kern {
+	__u32	hashval;	/* hash value of next entry to add */
+	__u32	blkno;		/* block containing entry (suggestion) */
+	__u32	offset;		/* offset in list of equal-hashvals */
+	__u16	pad1;		/* padding to match user-level */
+	__u8	pad2;		/* padding to match user-level */
+	__u8	initted;	/* T/F: cursor has been initialized */
+} attrlist_cursor_kern_t;
+
+
+/*========================================================================
+ * Function prototypes for the kernel.
+ *========================================================================*/
+
+struct xfs_inode;
+struct attrlist_cursor_kern;
+struct xfs_da_args;
+
+/*
+ * Overall external interface routines.
+ */
+int xfs_attr_get(bhv_desc_t *, char *, char *, int *, int, struct cred *);
+int xfs_attr_set(bhv_desc_t *, char *, char *, int, int, struct cred *);
+int xfs_attr_remove(bhv_desc_t *, char *, int, struct cred *);
+int xfs_attr_list(bhv_desc_t *, char *, int, int,
+			 struct attrlist_cursor_kern *, struct cred *);
+int xfs_attr_inactive(struct xfs_inode *dp);
+
+int xfs_attr_node_get(struct xfs_da_args *);
+int xfs_attr_leaf_get(struct xfs_da_args *);
+int xfs_attr_shortform_getvalue(struct xfs_da_args *);
+int xfs_attr_fetch(struct xfs_inode *, char *, int,
+			char *, int *, int, struct cred *);
+
+#endif	/* __XFS_ATTR_H__ */
diff --git a/fs/xfs/xfs_attr_leaf.c b/fs/xfs/xfs_attr_leaf.c
new file mode 100644
index 00000000000000..444f341ed5eef9
--- /dev/null
+++ b/fs/xfs/xfs_attr_leaf.c
@@ -0,0 +1,3050 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+/*
+ * xfs_attr_leaf.c
+ *
+ * GROT: figure out how to recover gracefully when bmap returns ENOSPC.
+ */
+
+#include "xfs.h"
+
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_alloc.h"
+#include "xfs_btree.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode_item.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_da_btree.h"
+#include "xfs_attr.h"
+#include "xfs_attr_leaf.h"
+#include "xfs_error.h"
+#include "xfs_bit.h"
+
+/*
+ * xfs_attr_leaf.c
+ *
+ * Routines to implement leaf blocks of attributes as Btrees of hashed names.
+ */
+
+/*========================================================================
+ * Function prototypes for the kernel.
+ *========================================================================*/
+
+/*
+ * Routines used for growing the Btree.
+ */
+STATIC int xfs_attr_leaf_add_work(xfs_dabuf_t *leaf_buffer, xfs_da_args_t *args,
+					      int freemap_index);
+STATIC void xfs_attr_leaf_compact(xfs_trans_t *trans, xfs_dabuf_t *leaf_buffer);
+STATIC void xfs_attr_leaf_rebalance(xfs_da_state_t *state,
+						   xfs_da_state_blk_t *blk1,
+						   xfs_da_state_blk_t *blk2);
+STATIC int xfs_attr_leaf_figure_balance(xfs_da_state_t *state,
+					   xfs_da_state_blk_t *leaf_blk_1,
+					   xfs_da_state_blk_t *leaf_blk_2,
+					   int *number_entries_in_blk1,
+					   int *number_usedbytes_in_blk1);
+
+/*
+ * Utility routines.
+ */
+STATIC void xfs_attr_leaf_moveents(xfs_attr_leafblock_t *src_leaf,
+					 int src_start,
+					 xfs_attr_leafblock_t *dst_leaf,
+					 int dst_start, int move_count,
+					 xfs_mount_t *mp);
+
+
+/*========================================================================
+ * External routines when dirsize < XFS_LITINO(mp).
+ *========================================================================*/
+
+/*
+ * Create the initial contents of a shortform attribute list.
+ */
+int
+xfs_attr_shortform_create(xfs_da_args_t *args)
+{
+	xfs_attr_sf_hdr_t *hdr;
+	xfs_inode_t *dp;
+	xfs_ifork_t *ifp;
+
+	dp = args->dp;
+	ASSERT(dp != NULL);
+	ifp = dp->i_afp;
+	ASSERT(ifp != NULL);
+	ASSERT(ifp->if_bytes == 0);
+	if (dp->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS) {
+		ifp->if_flags &= ~XFS_IFEXTENTS;	/* just in case */
+		dp->i_d.di_aformat = XFS_DINODE_FMT_LOCAL;
+		ifp->if_flags |= XFS_IFINLINE;
+	} else {
+		ASSERT(ifp->if_flags & XFS_IFINLINE);
+	}
+	xfs_idata_realloc(dp, sizeof(*hdr), XFS_ATTR_FORK);
+	hdr = (xfs_attr_sf_hdr_t *)ifp->if_u1.if_data;
+	INT_ZERO(hdr->count, ARCH_CONVERT);
+	INT_SET(hdr->totsize, ARCH_CONVERT, sizeof(*hdr));
+	xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE | XFS_ILOG_ADATA);
+	return(0);
+}
+
+/*
+ * Add a name/value pair to the shortform attribute list.
+ * Overflow from the inode has already been checked for.
+ */
+int
+xfs_attr_shortform_add(xfs_da_args_t *args)
+{
+	xfs_attr_shortform_t *sf;
+	xfs_attr_sf_entry_t *sfe;
+	int i, offset, size;
+	xfs_inode_t *dp;
+	xfs_ifork_t *ifp;
+
+	dp = args->dp;
+	ifp = dp->i_afp;
+	ASSERT(ifp->if_flags & XFS_IFINLINE);
+	sf = (xfs_attr_shortform_t *)ifp->if_u1.if_data;
+	sfe = &sf->list[0];
+	for (i = 0; i < INT_GET(sf->hdr.count, ARCH_CONVERT);
+				sfe = XFS_ATTR_SF_NEXTENTRY(sfe), i++) {
+		if (sfe->namelen != args->namelen)
+			continue;
+		if (memcmp(args->name, sfe->nameval, args->namelen) != 0)
+			continue;
+		if (((args->flags & ATTR_SECURE) != 0) !=
+		    ((sfe->flags & XFS_ATTR_SECURE) != 0))
+			continue;
+		if (((args->flags & ATTR_ROOT) != 0) !=
+		    ((sfe->flags & XFS_ATTR_ROOT) != 0))
+			continue;
+		return(XFS_ERROR(EEXIST));
+	}
+
+	offset = (char *)sfe - (char *)sf;
+	size = XFS_ATTR_SF_ENTSIZE_BYNAME(args->namelen, args->valuelen);
+	xfs_idata_realloc(dp, size, XFS_ATTR_FORK);
+	sf = (xfs_attr_shortform_t *)ifp->if_u1.if_data;
+	sfe = (xfs_attr_sf_entry_t *)((char *)sf + offset);
+
+	sfe->namelen = args->namelen;
+	INT_SET(sfe->valuelen, ARCH_CONVERT, args->valuelen);
+	sfe->flags = (args->flags & ATTR_SECURE) ? XFS_ATTR_SECURE :
+			((args->flags & ATTR_ROOT) ? XFS_ATTR_ROOT : 0);
+	memcpy(sfe->nameval, args->name, args->namelen);
+	memcpy(&sfe->nameval[args->namelen], args->value, args->valuelen);
+	INT_MOD(sf->hdr.count, ARCH_CONVERT, 1);
+	INT_MOD(sf->hdr.totsize, ARCH_CONVERT, size);
+	xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE | XFS_ILOG_ADATA);
+
+	return(0);
+}
+
+/*
+ * Remove a name from the shortform attribute list structure.
+ */
+int
+xfs_attr_shortform_remove(xfs_da_args_t *args)
+{
+	xfs_attr_shortform_t *sf;
+	xfs_attr_sf_entry_t *sfe;
+	int base, size=0, end, totsize, i;
+	xfs_inode_t *dp;
+
+	/*
+	 * Remove the attribute.
+	 */
+	dp = args->dp;
+	base = sizeof(xfs_attr_sf_hdr_t);
+	sf = (xfs_attr_shortform_t *)dp->i_afp->if_u1.if_data;
+	sfe = &sf->list[0];
+	for (i = 0; i < INT_GET(sf->hdr.count, ARCH_CONVERT);
+				sfe = XFS_ATTR_SF_NEXTENTRY(sfe),
+					base += size, i++) {
+		size = XFS_ATTR_SF_ENTSIZE(sfe);
+		if (sfe->namelen != args->namelen)
+			continue;
+		if (memcmp(sfe->nameval, args->name, args->namelen) != 0)
+			continue;
+		if (((args->flags & ATTR_SECURE) != 0) !=
+		    ((sfe->flags & XFS_ATTR_SECURE) != 0))
+			continue;
+		if (((args->flags & ATTR_ROOT) != 0) !=
+		    ((sfe->flags & XFS_ATTR_ROOT) != 0))
+			continue;
+		break;
+	}
+	if (i == INT_GET(sf->hdr.count, ARCH_CONVERT))
+		return(XFS_ERROR(ENOATTR));
+
+	end = base + size;
+	totsize = INT_GET(sf->hdr.totsize, ARCH_CONVERT);
+	if (end != totsize) {
+		memmove(&((char *)sf)[base], &((char *)sf)[end],
+							totsize - end);
+	}
+	INT_MOD(sf->hdr.count, ARCH_CONVERT, -1);
+	INT_MOD(sf->hdr.totsize, ARCH_CONVERT, -size);
+	xfs_idata_realloc(dp, -size, XFS_ATTR_FORK);
+	xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE | XFS_ILOG_ADATA);
+
+	return(0);
+}
+
+/*
+ * Look up a name in a shortform attribute list structure.
+ */
+/*ARGSUSED*/
+int
+xfs_attr_shortform_lookup(xfs_da_args_t *args)
+{
+	xfs_attr_shortform_t *sf;
+	xfs_attr_sf_entry_t *sfe;
+	int i;
+	xfs_ifork_t *ifp;
+
+	ifp = args->dp->i_afp;
+	ASSERT(ifp->if_flags & XFS_IFINLINE);
+	sf = (xfs_attr_shortform_t *)ifp->if_u1.if_data;
+	sfe = &sf->list[0];
+	for (i = 0; i < INT_GET(sf->hdr.count, ARCH_CONVERT);
+				sfe = XFS_ATTR_SF_NEXTENTRY(sfe), i++) {
+		if (sfe->namelen != args->namelen)
+			continue;
+		if (memcmp(args->name, sfe->nameval, args->namelen) != 0)
+			continue;
+		if (((args->flags & ATTR_SECURE) != 0) !=
+		    ((sfe->flags & XFS_ATTR_SECURE) != 0))
+			continue;
+		if (((args->flags & ATTR_ROOT) != 0) !=
+		    ((sfe->flags & XFS_ATTR_ROOT) != 0))
+			continue;
+		return(XFS_ERROR(EEXIST));
+	}
+	return(XFS_ERROR(ENOATTR));
+}
+
+/*
+ * Look up a name in a shortform attribute list structure.
+ */
+/*ARGSUSED*/
+int
+xfs_attr_shortform_getvalue(xfs_da_args_t *args)
+{
+	xfs_attr_shortform_t *sf;
+	xfs_attr_sf_entry_t *sfe;
+	int i;
+
+	ASSERT(args->dp->i_d.di_aformat == XFS_IFINLINE);
+	sf = (xfs_attr_shortform_t *)args->dp->i_afp->if_u1.if_data;
+	sfe = &sf->list[0];
+	for (i = 0; i < INT_GET(sf->hdr.count, ARCH_CONVERT);
+				sfe = XFS_ATTR_SF_NEXTENTRY(sfe), i++) {
+		if (sfe->namelen != args->namelen)
+			continue;
+		if (memcmp(args->name, sfe->nameval, args->namelen) != 0)
+			continue;
+		if (((args->flags & ATTR_SECURE) != 0) !=
+		    ((sfe->flags & XFS_ATTR_SECURE) != 0))
+			continue;
+		if (((args->flags & ATTR_ROOT) != 0) !=
+		    ((sfe->flags & XFS_ATTR_ROOT) != 0))
+			continue;
+		if (args->flags & ATTR_KERNOVAL) {
+			args->valuelen = INT_GET(sfe->valuelen, ARCH_CONVERT);
+			return(XFS_ERROR(EEXIST));
+		}
+		if (args->valuelen < INT_GET(sfe->valuelen, ARCH_CONVERT)) {
+			args->valuelen = INT_GET(sfe->valuelen, ARCH_CONVERT);
+			return(XFS_ERROR(ERANGE));
+		}
+		args->valuelen = INT_GET(sfe->valuelen, ARCH_CONVERT);
+		memcpy(args->value, &sfe->nameval[args->namelen],
+						    args->valuelen);
+		return(XFS_ERROR(EEXIST));
+	}
+	return(XFS_ERROR(ENOATTR));
+}
+
+/*
+ * Convert from using the shortform to the leaf.
+ */
+int
+xfs_attr_shortform_to_leaf(xfs_da_args_t *args)
+{
+	xfs_inode_t *dp;
+	xfs_attr_shortform_t *sf;
+	xfs_attr_sf_entry_t *sfe;
+	xfs_da_args_t nargs;
+	char *tmpbuffer;
+	int error, i, size;
+	xfs_dablk_t blkno;
+	xfs_dabuf_t *bp;
+	xfs_ifork_t *ifp;
+
+	dp = args->dp;
+	ifp = dp->i_afp;
+	sf = (xfs_attr_shortform_t *)ifp->if_u1.if_data;
+	size = INT_GET(sf->hdr.totsize, ARCH_CONVERT);
+	tmpbuffer = kmem_alloc(size, KM_SLEEP);
+	ASSERT(tmpbuffer != NULL);
+	memcpy(tmpbuffer, ifp->if_u1.if_data, size);
+	sf = (xfs_attr_shortform_t *)tmpbuffer;
+
+	xfs_idata_realloc(dp, -size, XFS_ATTR_FORK);
+	bp = NULL;
+	error = xfs_da_grow_inode(args, &blkno);
+	if (error) {
+		/*
+		 * If we hit an IO error middle of the transaction inside
+		 * grow_inode(), we may have inconsistent data. Bail out.
+		 */
+		if (error == EIO)
+			goto out;
+		xfs_idata_realloc(dp, size, XFS_ATTR_FORK);	/* try to put */
+		memcpy(ifp->if_u1.if_data, tmpbuffer, size);	/* it back */
+		goto out;
+	}
+
+	ASSERT(blkno == 0);
+	error = xfs_attr_leaf_create(args, blkno, &bp);
+	if (error) {
+		error = xfs_da_shrink_inode(args, 0, bp);
+		bp = NULL;
+		if (error)
+			goto out;
+		xfs_idata_realloc(dp, size, XFS_ATTR_FORK);	/* try to put */
+		memcpy(ifp->if_u1.if_data, tmpbuffer, size);	/* it back */
+		goto out;
+	}
+
+	memset((char *)&nargs, 0, sizeof(nargs));
+	nargs.dp = dp;
+	nargs.firstblock = args->firstblock;
+	nargs.flist = args->flist;
+	nargs.total = args->total;
+	nargs.whichfork = XFS_ATTR_FORK;
+	nargs.trans = args->trans;
+	nargs.oknoent = 1;
+
+	sfe = &sf->list[0];
+	for (i = 0; i < INT_GET(sf->hdr.count, ARCH_CONVERT); i++) {
+		nargs.name = (char *)sfe->nameval;
+		nargs.namelen = sfe->namelen;
+		nargs.value = (char *)&sfe->nameval[nargs.namelen];
+		nargs.valuelen = INT_GET(sfe->valuelen, ARCH_CONVERT);
+		nargs.hashval = xfs_da_hashname((char *)sfe->nameval,
+						sfe->namelen);
+		nargs.flags = (sfe->flags & XFS_ATTR_SECURE) ? ATTR_SECURE :
+				((sfe->flags & XFS_ATTR_ROOT) ? ATTR_ROOT : 0);
+		error = xfs_attr_leaf_lookup_int(bp, &nargs); /* set a->index */
+		ASSERT(error == ENOATTR);
+		error = xfs_attr_leaf_add(bp, &nargs);
+		ASSERT(error != ENOSPC);
+		if (error)
+			goto out;
+		sfe = XFS_ATTR_SF_NEXTENTRY(sfe);
+	}
+	error = 0;
+
+out:
+	if(bp)
+		xfs_da_buf_done(bp);
+	kmem_free(tmpbuffer, size);
+	return(error);
+}
+
+STATIC int
+xfs_attr_shortform_compare(const void *a, const void *b)
+{
+	xfs_attr_sf_sort_t *sa, *sb;
+
+	sa = (xfs_attr_sf_sort_t *)a;
+	sb = (xfs_attr_sf_sort_t *)b;
+	if (INT_GET(sa->hash, ARCH_CONVERT)
+				< INT_GET(sb->hash, ARCH_CONVERT)) {
+		return(-1);
+	} else if (INT_GET(sa->hash, ARCH_CONVERT)
+				> INT_GET(sb->hash, ARCH_CONVERT)) {
+		return(1);
+	} else {
+		return(sa->entno - sb->entno);
+	}
+}
+
+/*
+ * Copy out entries of shortform attribute lists for attr_list().
+ * Shortform atrtribute lists are not stored in hashval sorted order.
+ * If the output buffer is not large enough to hold them all, then we
+ * we have to calculate each entries' hashvalue and sort them before
+ * we can begin returning them to the user.
+ */
+/*ARGSUSED*/
+int
+xfs_attr_shortform_list(xfs_attr_list_context_t *context)
+{
+	attrlist_cursor_kern_t *cursor;
+	xfs_attr_sf_sort_t *sbuf, *sbp;
+	xfs_attr_shortform_t *sf;
+	xfs_attr_sf_entry_t *sfe;
+	xfs_inode_t *dp;
+	int sbsize, nsbuf, count, i;
+
+	ASSERT(context != NULL);
+	dp = context->dp;
+	ASSERT(dp != NULL);
+	ASSERT(dp->i_afp != NULL);
+	sf = (xfs_attr_shortform_t *)dp->i_afp->if_u1.if_data;
+	ASSERT(sf != NULL);
+	if (INT_ISZERO(sf->hdr.count, ARCH_CONVERT))
+		return(0);
+	cursor = context->cursor;
+	ASSERT(cursor != NULL);
+
+	xfs_attr_trace_l_c("sf start", context);
+
+	/*
+	 * If the buffer is large enough, do not bother with sorting.
+	 * Note the generous fudge factor of 16 overhead bytes per entry.
+	 */
+	if ((dp->i_afp->if_bytes + INT_GET(sf->hdr.count, ARCH_CONVERT) * 16)
+							< context->bufsize) {
+		for (i = 0, sfe = &sf->list[0];
+				i < INT_GET(sf->hdr.count, ARCH_CONVERT); i++) {
+			attrnames_t	*namesp;
+
+			if (((context->flags & ATTR_SECURE) != 0) !=
+			    ((sfe->flags & XFS_ATTR_SECURE) != 0) &&
+			    !(context->flags & ATTR_KERNORMALS)) {
+				sfe = XFS_ATTR_SF_NEXTENTRY(sfe);
+				continue;
+			}
+			if (((context->flags & ATTR_ROOT) != 0) !=
+			    ((sfe->flags & XFS_ATTR_ROOT) != 0) &&
+			    !(context->flags & ATTR_KERNROOTLS)) {
+				sfe = XFS_ATTR_SF_NEXTENTRY(sfe);
+				continue;
+			}
+			namesp = (sfe->flags & XFS_ATTR_SECURE) ? &attr_secure:
+				((sfe->flags & XFS_ATTR_ROOT) ? &attr_trusted :
+				  &attr_user);
+			if (context->flags & ATTR_KERNOVAL) {
+				ASSERT(context->flags & ATTR_KERNAMELS);
+				context->count += namesp->attr_namelen +
+					INT_GET(sfe->namelen, ARCH_CONVERT) + 1;
+			}
+			else {
+				if (xfs_attr_put_listent(context, namesp,
+						   (char *)sfe->nameval,
+						   (int)sfe->namelen,
+						   (int)INT_GET(sfe->valuelen,
+								ARCH_CONVERT)))
+					break;
+			}
+			sfe = XFS_ATTR_SF_NEXTENTRY(sfe);
+		}
+		xfs_attr_trace_l_c("sf big-gulp", context);
+		return(0);
+	}
+
+	/*
+	 * It didn't all fit, so we have to sort everything on hashval.
+	 */
+	sbsize = INT_GET(sf->hdr.count, ARCH_CONVERT) * sizeof(*sbuf);
+	sbp = sbuf = kmem_alloc(sbsize, KM_SLEEP);
+
+	/*
+	 * Scan the attribute list for the rest of the entries, storing
+	 * the relevant info from only those that match into a buffer.
+	 */
+	nsbuf = 0;
+	for (i = 0, sfe = &sf->list[0];
+			i < INT_GET(sf->hdr.count, ARCH_CONVERT); i++) {
+		if (unlikely(
+		    ((char *)sfe < (char *)sf) ||
+		    ((char *)sfe >= ((char *)sf + dp->i_afp->if_bytes)))) {
+			XFS_CORRUPTION_ERROR("xfs_attr_shortform_list",
+					     XFS_ERRLEVEL_LOW,
+					     context->dp->i_mount, sfe);
+			xfs_attr_trace_l_c("sf corrupted", context);
+			kmem_free(sbuf, sbsize);
+			return XFS_ERROR(EFSCORRUPTED);
+		}
+		if (((context->flags & ATTR_SECURE) != 0) !=
+		    ((sfe->flags & XFS_ATTR_SECURE) != 0) &&
+		    !(context->flags & ATTR_KERNORMALS)) {
+			sfe = XFS_ATTR_SF_NEXTENTRY(sfe);
+			continue;
+		}
+		if (((context->flags & ATTR_ROOT) != 0) !=
+		    ((sfe->flags & XFS_ATTR_ROOT) != 0) &&
+		    !(context->flags & ATTR_KERNROOTLS)) {
+			sfe = XFS_ATTR_SF_NEXTENTRY(sfe);
+			continue;
+		}
+		sbp->entno = i;
+		INT_SET(sbp->hash, ARCH_CONVERT,
+			xfs_da_hashname((char *)sfe->nameval, sfe->namelen));
+		sbp->name = (char *)sfe->nameval;
+		sbp->namelen = sfe->namelen;
+		/* These are bytes, and both on-disk, don't endian-flip */
+		sbp->valuelen = sfe->valuelen;
+		sbp->flags = sfe->flags;
+		sfe = XFS_ATTR_SF_NEXTENTRY(sfe);
+		sbp++;
+		nsbuf++;
+	}
+
+	/*
+	 * Sort the entries on hash then entno.
+	 */
+	qsort(sbuf, nsbuf, sizeof(*sbuf), xfs_attr_shortform_compare);
+
+	/*
+	 * Re-find our place IN THE SORTED LIST.
+	 */
+	count = 0;
+	cursor->initted = 1;
+	cursor->blkno = 0;
+	for (sbp = sbuf, i = 0; i < nsbuf; i++, sbp++) {
+		if (INT_GET(sbp->hash, ARCH_CONVERT) == cursor->hashval) {
+			if (cursor->offset == count) {
+				break;
+			}
+			count++;
+		} else if (INT_GET(sbp->hash, ARCH_CONVERT) > cursor->hashval) {
+			break;
+		}
+	}
+	if (i == nsbuf) {
+		kmem_free(sbuf, sbsize);
+		xfs_attr_trace_l_c("blk end", context);
+		return(0);
+	}
+
+	/*
+	 * Loop putting entries into the user buffer.
+	 */
+	for ( ; i < nsbuf; i++, sbp++) {
+		attrnames_t	*namesp;
+
+		namesp = (sbp->flags & XFS_ATTR_SECURE) ? &attr_secure :
+			((sbp->flags & XFS_ATTR_ROOT) ? &attr_trusted :
+			  &attr_user);
+
+		if (cursor->hashval != INT_GET(sbp->hash, ARCH_CONVERT)) {
+			cursor->hashval = INT_GET(sbp->hash, ARCH_CONVERT);
+			cursor->offset = 0;
+		}
+		if (context->flags & ATTR_KERNOVAL) {
+			ASSERT(context->flags & ATTR_KERNAMELS);
+			context->count += namesp->attr_namelen +
+						sbp->namelen + 1;
+		} else {
+			if (xfs_attr_put_listent(context, namesp,
+					sbp->name, sbp->namelen,
+					INT_GET(sbp->valuelen, ARCH_CONVERT)))
+				break;
+		}
+		cursor->offset++;
+	}
+
+	kmem_free(sbuf, sbsize);
+	xfs_attr_trace_l_c("sf E-O-F", context);
+	return(0);
+}
+
+/*
+ * Check a leaf attribute block to see if all the entries would fit into
+ * a shortform attribute list.
+ */
+int
+xfs_attr_shortform_allfit(xfs_dabuf_t *bp, xfs_inode_t *dp)
+{
+	xfs_attr_leafblock_t *leaf;
+	xfs_attr_leaf_entry_t *entry;
+	xfs_attr_leaf_name_local_t *name_loc;
+	int bytes, i;
+
+	leaf = bp->data;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT)
+						== XFS_ATTR_LEAF_MAGIC);
+
+	entry = &leaf->entries[0];
+	bytes = sizeof(struct xfs_attr_sf_hdr);
+	for (i = 0; i < INT_GET(leaf->hdr.count, ARCH_CONVERT); entry++, i++) {
+		if (entry->flags & XFS_ATTR_INCOMPLETE)
+			continue;		/* don't copy partial entries */
+		if (!(entry->flags & XFS_ATTR_LOCAL))
+			return(0);
+		name_loc = XFS_ATTR_LEAF_NAME_LOCAL(leaf, i);
+		if (name_loc->namelen >= XFS_ATTR_SF_ENTSIZE_MAX)
+			return(0);
+		if (INT_GET(name_loc->valuelen, ARCH_CONVERT) >= XFS_ATTR_SF_ENTSIZE_MAX)
+			return(0);
+		bytes += sizeof(struct xfs_attr_sf_entry)-1
+				+ name_loc->namelen
+				+ INT_GET(name_loc->valuelen, ARCH_CONVERT);
+	}
+	return( bytes < XFS_IFORK_ASIZE(dp) );
+}
+
+/*
+ * Convert a leaf attribute list to shortform attribute list
+ */
+int
+xfs_attr_leaf_to_shortform(xfs_dabuf_t *bp, xfs_da_args_t *args)
+{
+	xfs_attr_leafblock_t *leaf;
+	xfs_attr_leaf_entry_t *entry;
+	xfs_attr_leaf_name_local_t *name_loc;
+	xfs_da_args_t nargs;
+	xfs_inode_t *dp;
+	char *tmpbuffer;
+	int error, i;
+
+	dp = args->dp;
+	tmpbuffer = kmem_alloc(XFS_LBSIZE(dp->i_mount), KM_SLEEP);
+	ASSERT(tmpbuffer != NULL);
+
+	ASSERT(bp != NULL);
+	memcpy(tmpbuffer, bp->data, XFS_LBSIZE(dp->i_mount));
+	leaf = (xfs_attr_leafblock_t *)tmpbuffer;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT)
+						== XFS_ATTR_LEAF_MAGIC);
+	memset(bp->data, 0, XFS_LBSIZE(dp->i_mount));
+
+	/*
+	 * Clean out the prior contents of the attribute list.
+	 */
+	error = xfs_da_shrink_inode(args, 0, bp);
+	if (error)
+		goto out;
+	error = xfs_attr_shortform_create(args);
+	if (error)
+		goto out;
+
+	/*
+	 * Copy the attributes
+	 */
+	memset((char *)&nargs, 0, sizeof(nargs));
+	nargs.dp = dp;
+	nargs.firstblock = args->firstblock;
+	nargs.flist = args->flist;
+	nargs.total = args->total;
+	nargs.whichfork = XFS_ATTR_FORK;
+	nargs.trans = args->trans;
+	nargs.oknoent = 1;
+	entry = &leaf->entries[0];
+	for (i = 0; i < INT_GET(leaf->hdr.count, ARCH_CONVERT); entry++, i++) {
+		if (entry->flags & XFS_ATTR_INCOMPLETE)
+			continue;	/* don't copy partial entries */
+		if (INT_ISZERO(entry->nameidx, ARCH_CONVERT))
+			continue;
+		ASSERT(entry->flags & XFS_ATTR_LOCAL);
+		name_loc = XFS_ATTR_LEAF_NAME_LOCAL(leaf, i);
+		nargs.name = (char *)name_loc->nameval;
+		nargs.namelen = name_loc->namelen;
+		nargs.value = (char *)&name_loc->nameval[nargs.namelen];
+		nargs.valuelen = INT_GET(name_loc->valuelen, ARCH_CONVERT);
+		nargs.hashval = INT_GET(entry->hashval, ARCH_CONVERT);
+		nargs.flags = (entry->flags & XFS_ATTR_SECURE) ? ATTR_SECURE :
+			      ((entry->flags & XFS_ATTR_ROOT) ? ATTR_ROOT : 0);
+		xfs_attr_shortform_add(&nargs);
+	}
+	error = 0;
+
+out:
+	kmem_free(tmpbuffer, XFS_LBSIZE(dp->i_mount));
+	return(error);
+}
+
+/*
+ * Convert from using a single leaf to a root node and a leaf.
+ */
+int
+xfs_attr_leaf_to_node(xfs_da_args_t *args)
+{
+	xfs_attr_leafblock_t *leaf;
+	xfs_da_intnode_t *node;
+	xfs_inode_t *dp;
+	xfs_dabuf_t *bp1, *bp2;
+	xfs_dablk_t blkno;
+	int error;
+
+	dp = args->dp;
+	bp1 = bp2 = NULL;
+	error = xfs_da_grow_inode(args, &blkno);
+	if (error)
+		goto out;
+	error = xfs_da_read_buf(args->trans, args->dp, 0, -1, &bp1,
+					     XFS_ATTR_FORK);
+	if (error)
+		goto out;
+	ASSERT(bp1 != NULL);
+	bp2 = NULL;
+	error = xfs_da_get_buf(args->trans, args->dp, blkno, -1, &bp2,
+					    XFS_ATTR_FORK);
+	if (error)
+		goto out;
+	ASSERT(bp2 != NULL);
+	memcpy(bp2->data, bp1->data, XFS_LBSIZE(dp->i_mount));
+	xfs_da_buf_done(bp1);
+	bp1 = NULL;
+	xfs_da_log_buf(args->trans, bp2, 0, XFS_LBSIZE(dp->i_mount) - 1);
+
+	/*
+	 * Set up the new root node.
+	 */
+	error = xfs_da_node_create(args, 0, 1, &bp1, XFS_ATTR_FORK);
+	if (error)
+		goto out;
+	node = bp1->data;
+	leaf = bp2->data;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT)
+						== XFS_ATTR_LEAF_MAGIC);
+	/* both on-disk, don't endian-flip twice */
+	node->btree[0].hashval =
+		leaf->entries[INT_GET(leaf->hdr.count, ARCH_CONVERT)-1 ].hashval;
+	INT_SET(node->btree[0].before, ARCH_CONVERT, blkno);
+	INT_SET(node->hdr.count, ARCH_CONVERT, 1);
+	xfs_da_log_buf(args->trans, bp1, 0, XFS_LBSIZE(dp->i_mount) - 1);
+	error = 0;
+out:
+	if (bp1)
+		xfs_da_buf_done(bp1);
+	if (bp2)
+		xfs_da_buf_done(bp2);
+	return(error);
+}
+
+
+/*========================================================================
+ * Routines used for growing the Btree.
+ *========================================================================*/
+
+/*
+ * Create the initial contents of a leaf attribute list
+ * or a leaf in a node attribute list.
+ */
+int
+xfs_attr_leaf_create(xfs_da_args_t *args, xfs_dablk_t blkno, xfs_dabuf_t **bpp)
+{
+	xfs_attr_leafblock_t *leaf;
+	xfs_attr_leaf_hdr_t *hdr;
+	xfs_inode_t *dp;
+	xfs_dabuf_t *bp;
+	int error;
+
+	dp = args->dp;
+	ASSERT(dp != NULL);
+	error = xfs_da_get_buf(args->trans, args->dp, blkno, -1, &bp,
+					    XFS_ATTR_FORK);
+	if (error)
+		return(error);
+	ASSERT(bp != NULL);
+	leaf = bp->data;
+	memset((char *)leaf, 0, XFS_LBSIZE(dp->i_mount));
+	hdr = &leaf->hdr;
+	INT_SET(hdr->info.magic, ARCH_CONVERT, XFS_ATTR_LEAF_MAGIC);
+	INT_SET(hdr->firstused, ARCH_CONVERT, XFS_LBSIZE(dp->i_mount));
+	if (INT_ISZERO(hdr->firstused, ARCH_CONVERT)) {
+		INT_SET(hdr->firstused, ARCH_CONVERT,
+			XFS_LBSIZE(dp->i_mount) - XFS_ATTR_LEAF_NAME_ALIGN);
+	}
+
+	INT_SET(hdr->freemap[0].base, ARCH_CONVERT,
+						sizeof(xfs_attr_leaf_hdr_t));
+	INT_SET(hdr->freemap[0].size, ARCH_CONVERT,
+					  INT_GET(hdr->firstused, ARCH_CONVERT)
+					- INT_GET(hdr->freemap[0].base,
+								ARCH_CONVERT));
+
+	xfs_da_log_buf(args->trans, bp, 0, XFS_LBSIZE(dp->i_mount) - 1);
+
+	*bpp = bp;
+	return(0);
+}
+
+/*
+ * Split the leaf node, rebalance, then add the new entry.
+ */
+int
+xfs_attr_leaf_split(xfs_da_state_t *state, xfs_da_state_blk_t *oldblk,
+				   xfs_da_state_blk_t *newblk)
+{
+	xfs_dablk_t blkno;
+	int error;
+
+	/*
+	 * Allocate space for a new leaf node.
+	 */
+	ASSERT(oldblk->magic == XFS_ATTR_LEAF_MAGIC);
+	error = xfs_da_grow_inode(state->args, &blkno);
+	if (error)
+		return(error);
+	error = xfs_attr_leaf_create(state->args, blkno, &newblk->bp);
+	if (error)
+		return(error);
+	newblk->blkno = blkno;
+	newblk->magic = XFS_ATTR_LEAF_MAGIC;
+
+	/*
+	 * Rebalance the entries across the two leaves.
+	 * NOTE: rebalance() currently depends on the 2nd block being empty.
+	 */
+	xfs_attr_leaf_rebalance(state, oldblk, newblk);
+	error = xfs_da_blk_link(state, oldblk, newblk);
+	if (error)
+		return(error);
+
+	/*
+	 * Save info on "old" attribute for "atomic rename" ops, leaf_add()
+	 * modifies the index/blkno/rmtblk/rmtblkcnt fields to show the
+	 * "new" attrs info.  Will need the "old" info to remove it later.
+	 *
+	 * Insert the "new" entry in the correct block.
+	 */
+	if (state->inleaf)
+		error = xfs_attr_leaf_add(oldblk->bp, state->args);
+	else
+		error = xfs_attr_leaf_add(newblk->bp, state->args);
+
+	/*
+	 * Update last hashval in each block since we added the name.
+	 */
+	oldblk->hashval = xfs_attr_leaf_lasthash(oldblk->bp, NULL);
+	newblk->hashval = xfs_attr_leaf_lasthash(newblk->bp, NULL);
+	return(error);
+}
+
+/*
+ * Add a name to the leaf attribute list structure.
+ */
+int
+xfs_attr_leaf_add(xfs_dabuf_t *bp, xfs_da_args_t *args)
+{
+	xfs_attr_leafblock_t *leaf;
+	xfs_attr_leaf_hdr_t *hdr;
+	xfs_attr_leaf_map_t *map;
+	int tablesize, entsize, sum, tmp, i;
+
+	leaf = bp->data;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT)
+						== XFS_ATTR_LEAF_MAGIC);
+	ASSERT((args->index >= 0)
+		&& (args->index <= INT_GET(leaf->hdr.count, ARCH_CONVERT)));
+	hdr = &leaf->hdr;
+	entsize = xfs_attr_leaf_newentsize(args,
+			   args->trans->t_mountp->m_sb.sb_blocksize, NULL);
+
+	/*
+	 * Search through freemap for first-fit on new name length.
+	 * (may need to figure in size of entry struct too)
+	 */
+	tablesize = (INT_GET(hdr->count, ARCH_CONVERT) + 1)
+					* sizeof(xfs_attr_leaf_entry_t)
+					+ sizeof(xfs_attr_leaf_hdr_t);
+	map = &hdr->freemap[XFS_ATTR_LEAF_MAPSIZE-1];
+	for (sum = 0, i = XFS_ATTR_LEAF_MAPSIZE-1; i >= 0; map--, i--) {
+		if (tablesize > INT_GET(hdr->firstused, ARCH_CONVERT)) {
+			sum += INT_GET(map->size, ARCH_CONVERT);
+			continue;
+		}
+		if (INT_ISZERO(map->size, ARCH_CONVERT))
+			continue;	/* no space in this map */
+		tmp = entsize;
+		if (INT_GET(map->base, ARCH_CONVERT)
+				< INT_GET(hdr->firstused, ARCH_CONVERT))
+			tmp += sizeof(xfs_attr_leaf_entry_t);
+		if (INT_GET(map->size, ARCH_CONVERT) >= tmp) {
+			tmp = xfs_attr_leaf_add_work(bp, args, i);
+			return(tmp);
+		}
+		sum += INT_GET(map->size, ARCH_CONVERT);
+	}
+
+	/*
+	 * If there are no holes in the address space of the block,
+	 * and we don't have enough freespace, then compaction will do us
+	 * no good and we should just give up.
+	 */
+	if (!hdr->holes && (sum < entsize))
+		return(XFS_ERROR(ENOSPC));
+
+	/*
+	 * Compact the entries to coalesce free space.
+	 * This may change the hdr->count via dropping INCOMPLETE entries.
+	 */
+	xfs_attr_leaf_compact(args->trans, bp);
+
+	/*
+	 * After compaction, the block is guaranteed to have only one
+	 * free region, in freemap[0].  If it is not big enough, give up.
+	 */
+	if (INT_GET(hdr->freemap[0].size, ARCH_CONVERT)
+				< (entsize + sizeof(xfs_attr_leaf_entry_t)))
+		return(XFS_ERROR(ENOSPC));
+
+	return(xfs_attr_leaf_add_work(bp, args, 0));
+}
+
+/*
+ * Add a name to a leaf attribute list structure.
+ */
+STATIC int
+xfs_attr_leaf_add_work(xfs_dabuf_t *bp, xfs_da_args_t *args, int mapindex)
+{
+	xfs_attr_leafblock_t *leaf;
+	xfs_attr_leaf_hdr_t *hdr;
+	xfs_attr_leaf_entry_t *entry;
+	xfs_attr_leaf_name_local_t *name_loc;
+	xfs_attr_leaf_name_remote_t *name_rmt;
+	xfs_attr_leaf_map_t *map;
+	xfs_mount_t *mp;
+	int tmp, i;
+
+	leaf = bp->data;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT)
+						== XFS_ATTR_LEAF_MAGIC);
+	hdr = &leaf->hdr;
+	ASSERT((mapindex >= 0) && (mapindex < XFS_ATTR_LEAF_MAPSIZE));
+	ASSERT((args->index >= 0)
+		&& (args->index <= INT_GET(hdr->count, ARCH_CONVERT)));
+
+	/*
+	 * Force open some space in the entry array and fill it in.
+	 */
+	entry = &leaf->entries[args->index];
+	if (args->index < INT_GET(hdr->count, ARCH_CONVERT)) {
+		tmp  = INT_GET(hdr->count, ARCH_CONVERT) - args->index;
+		tmp *= sizeof(xfs_attr_leaf_entry_t);
+		memmove((char *)(entry+1), (char *)entry, tmp);
+		xfs_da_log_buf(args->trans, bp,
+		    XFS_DA_LOGRANGE(leaf, entry, tmp + sizeof(*entry)));
+	}
+	INT_MOD(hdr->count, ARCH_CONVERT, 1);
+
+	/*
+	 * Allocate space for the new string (at the end of the run).
+	 */
+	map = &hdr->freemap[mapindex];
+	mp = args->trans->t_mountp;
+	ASSERT(INT_GET(map->base, ARCH_CONVERT) < XFS_LBSIZE(mp));
+	ASSERT((INT_GET(map->base, ARCH_CONVERT) & 0x3) == 0);
+	ASSERT(INT_GET(map->size, ARCH_CONVERT)
+				>= xfs_attr_leaf_newentsize(args,
+					     mp->m_sb.sb_blocksize, NULL));
+	ASSERT(INT_GET(map->size, ARCH_CONVERT) < XFS_LBSIZE(mp));
+	ASSERT((INT_GET(map->size, ARCH_CONVERT) & 0x3) == 0);
+	INT_MOD(map->size, ARCH_CONVERT,
+		-xfs_attr_leaf_newentsize(args, mp->m_sb.sb_blocksize, &tmp));
+	INT_SET(entry->nameidx, ARCH_CONVERT,
+					INT_GET(map->base, ARCH_CONVERT)
+				      + INT_GET(map->size, ARCH_CONVERT));
+	INT_SET(entry->hashval, ARCH_CONVERT, args->hashval);
+	entry->flags = tmp ? XFS_ATTR_LOCAL : 0;
+	entry->flags |= (args->flags & ATTR_SECURE) ? XFS_ATTR_SECURE :
+			((args->flags & ATTR_ROOT) ? XFS_ATTR_ROOT : 0);
+	if (args->rename) {
+		entry->flags |= XFS_ATTR_INCOMPLETE;
+		if ((args->blkno2 == args->blkno) &&
+		    (args->index2 <= args->index)) {
+			args->index2++;
+		}
+	}
+	xfs_da_log_buf(args->trans, bp,
+			  XFS_DA_LOGRANGE(leaf, entry, sizeof(*entry)));
+	ASSERT((args->index == 0) || (INT_GET(entry->hashval, ARCH_CONVERT)
+						>= INT_GET((entry-1)->hashval,
+							    ARCH_CONVERT)));
+	ASSERT((args->index == INT_GET(hdr->count, ARCH_CONVERT)-1) ||
+	       (INT_GET(entry->hashval, ARCH_CONVERT)
+			    <= (INT_GET((entry+1)->hashval, ARCH_CONVERT))));
+
+	/*
+	 * Copy the attribute name and value into the new space.
+	 *
+	 * For "remote" attribute values, simply note that we need to
+	 * allocate space for the "remote" value.  We can't actually
+	 * allocate the extents in this transaction, and we can't decide
+	 * which blocks they should be as we might allocate more blocks
+	 * as part of this transaction (a split operation for example).
+	 */
+	if (entry->flags & XFS_ATTR_LOCAL) {
+		name_loc = XFS_ATTR_LEAF_NAME_LOCAL(leaf, args->index);
+		name_loc->namelen = args->namelen;
+		INT_SET(name_loc->valuelen, ARCH_CONVERT, args->valuelen);
+		memcpy((char *)name_loc->nameval, args->name, args->namelen);
+		memcpy((char *)&name_loc->nameval[args->namelen], args->value,
+				   INT_GET(name_loc->valuelen, ARCH_CONVERT));
+	} else {
+		name_rmt = XFS_ATTR_LEAF_NAME_REMOTE(leaf, args->index);
+		name_rmt->namelen = args->namelen;
+		memcpy((char *)name_rmt->name, args->name, args->namelen);
+		entry->flags |= XFS_ATTR_INCOMPLETE;
+		/* just in case */
+		INT_ZERO(name_rmt->valuelen, ARCH_CONVERT);
+		INT_ZERO(name_rmt->valueblk, ARCH_CONVERT);
+		args->rmtblkno = 1;
+		args->rmtblkcnt = XFS_B_TO_FSB(mp, args->valuelen);
+	}
+	xfs_da_log_buf(args->trans, bp,
+	     XFS_DA_LOGRANGE(leaf, XFS_ATTR_LEAF_NAME(leaf, args->index),
+				   xfs_attr_leaf_entsize(leaf, args->index)));
+
+	/*
+	 * Update the control info for this leaf node
+	 */
+	if (INT_GET(entry->nameidx, ARCH_CONVERT)
+				< INT_GET(hdr->firstused, ARCH_CONVERT)) {
+		/* both on-disk, don't endian-flip twice */
+		hdr->firstused = entry->nameidx;
+	}
+	ASSERT(INT_GET(hdr->firstused, ARCH_CONVERT)
+				>= ((INT_GET(hdr->count, ARCH_CONVERT)
+					* sizeof(*entry))+sizeof(*hdr)));
+	tmp = (INT_GET(hdr->count, ARCH_CONVERT)-1)
+					* sizeof(xfs_attr_leaf_entry_t)
+					+ sizeof(xfs_attr_leaf_hdr_t);
+	map = &hdr->freemap[0];
+	for (i = 0; i < XFS_ATTR_LEAF_MAPSIZE; map++, i++) {
+		if (INT_GET(map->base, ARCH_CONVERT) == tmp) {
+			INT_MOD(map->base, ARCH_CONVERT,
+					sizeof(xfs_attr_leaf_entry_t));
+			INT_MOD(map->size, ARCH_CONVERT,
+					-sizeof(xfs_attr_leaf_entry_t));
+		}
+	}
+	INT_MOD(hdr->usedbytes, ARCH_CONVERT,
+				xfs_attr_leaf_entsize(leaf, args->index));
+	xfs_da_log_buf(args->trans, bp,
+		XFS_DA_LOGRANGE(leaf, hdr, sizeof(*hdr)));
+	return(0);
+}
+
+/*
+ * Garbage collect a leaf attribute list block by copying it to a new buffer.
+ */
+STATIC void
+xfs_attr_leaf_compact(xfs_trans_t *trans, xfs_dabuf_t *bp)
+{
+	xfs_attr_leafblock_t *leaf_s, *leaf_d;
+	xfs_attr_leaf_hdr_t *hdr_s, *hdr_d;
+	xfs_mount_t *mp;
+	char *tmpbuffer;
+
+	mp = trans->t_mountp;
+	tmpbuffer = kmem_alloc(XFS_LBSIZE(mp), KM_SLEEP);
+	ASSERT(tmpbuffer != NULL);
+	memcpy(tmpbuffer, bp->data, XFS_LBSIZE(mp));
+	memset(bp->data, 0, XFS_LBSIZE(mp));
+
+	/*
+	 * Copy basic information
+	 */
+	leaf_s = (xfs_attr_leafblock_t *)tmpbuffer;
+	leaf_d = bp->data;
+	hdr_s = &leaf_s->hdr;
+	hdr_d = &leaf_d->hdr;
+	hdr_d->info = hdr_s->info;	/* struct copy */
+	INT_SET(hdr_d->firstused, ARCH_CONVERT, XFS_LBSIZE(mp));
+	/* handle truncation gracefully */
+	if (INT_ISZERO(hdr_d->firstused, ARCH_CONVERT)) {
+		INT_SET(hdr_d->firstused, ARCH_CONVERT,
+				XFS_LBSIZE(mp) - XFS_ATTR_LEAF_NAME_ALIGN);
+	}
+	INT_ZERO(hdr_d->usedbytes, ARCH_CONVERT);
+	INT_ZERO(hdr_d->count, ARCH_CONVERT);
+	hdr_d->holes = 0;
+	INT_SET(hdr_d->freemap[0].base, ARCH_CONVERT,
+					sizeof(xfs_attr_leaf_hdr_t));
+	INT_SET(hdr_d->freemap[0].size, ARCH_CONVERT,
+				INT_GET(hdr_d->firstused, ARCH_CONVERT)
+			      - INT_GET(hdr_d->freemap[0].base, ARCH_CONVERT));
+
+	/*
+	 * Copy all entry's in the same (sorted) order,
+	 * but allocate name/value pairs packed and in sequence.
+	 */
+	xfs_attr_leaf_moveents(leaf_s, 0, leaf_d, 0,
+				(int)INT_GET(hdr_s->count, ARCH_CONVERT), mp);
+
+	xfs_da_log_buf(trans, bp, 0, XFS_LBSIZE(mp) - 1);
+
+	kmem_free(tmpbuffer, XFS_LBSIZE(mp));
+}
+
+/*
+ * Redistribute the attribute list entries between two leaf nodes,
+ * taking into account the size of the new entry.
+ *
+ * NOTE: if new block is empty, then it will get the upper half of the
+ * old block.  At present, all (one) callers pass in an empty second block.
+ *
+ * This code adjusts the args->index/blkno and args->index2/blkno2 fields
+ * to match what it is doing in splitting the attribute leaf block.  Those
+ * values are used in "atomic rename" operations on attributes.  Note that
+ * the "new" and "old" values can end up in different blocks.
+ */
+STATIC void
+xfs_attr_leaf_rebalance(xfs_da_state_t *state, xfs_da_state_blk_t *blk1,
+				       xfs_da_state_blk_t *blk2)
+{
+	xfs_da_args_t *args;
+	xfs_da_state_blk_t *tmp_blk;
+	xfs_attr_leafblock_t *leaf1, *leaf2;
+	xfs_attr_leaf_hdr_t *hdr1, *hdr2;
+	int count, totallen, max, space, swap;
+
+	/*
+	 * Set up environment.
+	 */
+	ASSERT(blk1->magic == XFS_ATTR_LEAF_MAGIC);
+	ASSERT(blk2->magic == XFS_ATTR_LEAF_MAGIC);
+	leaf1 = blk1->bp->data;
+	leaf2 = blk2->bp->data;
+	ASSERT(INT_GET(leaf1->hdr.info.magic, ARCH_CONVERT)
+						== XFS_ATTR_LEAF_MAGIC);
+	ASSERT(INT_GET(leaf2->hdr.info.magic, ARCH_CONVERT)
+						== XFS_ATTR_LEAF_MAGIC);
+	args = state->args;
+
+	/*
+	 * Check ordering of blocks, reverse if it makes things simpler.
+	 *
+	 * NOTE: Given that all (current) callers pass in an empty
+	 * second block, this code should never set "swap".
+	 */
+	swap = 0;
+	if (xfs_attr_leaf_order(blk1->bp, blk2->bp)) {
+		tmp_blk = blk1;
+		blk1 = blk2;
+		blk2 = tmp_blk;
+		leaf1 = blk1->bp->data;
+		leaf2 = blk2->bp->data;
+		swap = 1;
+	}
+	hdr1 = &leaf1->hdr;
+	hdr2 = &leaf2->hdr;
+
+	/*
+	 * Examine entries until we reduce the absolute difference in
+	 * byte usage between the two blocks to a minimum.  Then get
+	 * the direction to copy and the number of elements to move.
+	 *
+	 * "inleaf" is true if the new entry should be inserted into blk1.
+	 * If "swap" is also true, then reverse the sense of "inleaf".
+	 */
+	state->inleaf = xfs_attr_leaf_figure_balance(state, blk1, blk2,
+							    &count, &totallen);
+	if (swap)
+		state->inleaf = !state->inleaf;
+
+	/*
+	 * Move any entries required from leaf to leaf:
+	 */
+	if (count < INT_GET(hdr1->count, ARCH_CONVERT)) {
+		/*
+		 * Figure the total bytes to be added to the destination leaf.
+		 */
+		/* number entries being moved */
+		count = INT_GET(hdr1->count, ARCH_CONVERT) - count;
+		space  = INT_GET(hdr1->usedbytes, ARCH_CONVERT) - totallen;
+		space += count * sizeof(xfs_attr_leaf_entry_t);
+
+		/*
+		 * leaf2 is the destination, compact it if it looks tight.
+		 */
+		max  = INT_GET(hdr2->firstused, ARCH_CONVERT)
+						- sizeof(xfs_attr_leaf_hdr_t);
+		max -= INT_GET(hdr2->count, ARCH_CONVERT)
+					* sizeof(xfs_attr_leaf_entry_t);
+		if (space > max) {
+			xfs_attr_leaf_compact(args->trans, blk2->bp);
+		}
+
+		/*
+		 * Move high entries from leaf1 to low end of leaf2.
+		 */
+		xfs_attr_leaf_moveents(leaf1,
+				INT_GET(hdr1->count, ARCH_CONVERT)-count,
+				leaf2, 0, count, state->mp);
+
+		xfs_da_log_buf(args->trans, blk1->bp, 0, state->blocksize-1);
+		xfs_da_log_buf(args->trans, blk2->bp, 0, state->blocksize-1);
+	} else if (count > INT_GET(hdr1->count, ARCH_CONVERT)) {
+		/*
+		 * I assert that since all callers pass in an empty
+		 * second buffer, this code should never execute.
+		 */
+
+		/*
+		 * Figure the total bytes to be added to the destination leaf.
+		 */
+		/* number entries being moved */
+		count -= INT_GET(hdr1->count, ARCH_CONVERT);
+		space  = totallen - INT_GET(hdr1->usedbytes, ARCH_CONVERT);
+		space += count * sizeof(xfs_attr_leaf_entry_t);
+
+		/*
+		 * leaf1 is the destination, compact it if it looks tight.
+		 */
+		max  = INT_GET(hdr1->firstused, ARCH_CONVERT)
+						- sizeof(xfs_attr_leaf_hdr_t);
+		max -= INT_GET(hdr1->count, ARCH_CONVERT)
+					* sizeof(xfs_attr_leaf_entry_t);
+		if (space > max) {
+			xfs_attr_leaf_compact(args->trans, blk1->bp);
+		}
+
+		/*
+		 * Move low entries from leaf2 to high end of leaf1.
+		 */
+		xfs_attr_leaf_moveents(leaf2, 0, leaf1,
+				(int)INT_GET(hdr1->count, ARCH_CONVERT), count,
+				state->mp);
+
+		xfs_da_log_buf(args->trans, blk1->bp, 0, state->blocksize-1);
+		xfs_da_log_buf(args->trans, blk2->bp, 0, state->blocksize-1);
+	}
+
+	/*
+	 * Copy out last hashval in each block for B-tree code.
+	 */
+	blk1->hashval =
+	    INT_GET(leaf1->entries[INT_GET(leaf1->hdr.count,
+				    ARCH_CONVERT)-1].hashval, ARCH_CONVERT);
+	blk2->hashval =
+	    INT_GET(leaf2->entries[INT_GET(leaf2->hdr.count,
+				    ARCH_CONVERT)-1].hashval, ARCH_CONVERT);
+
+	/*
+	 * Adjust the expected index for insertion.
+	 * NOTE: this code depends on the (current) situation that the
+	 * second block was originally empty.
+	 *
+	 * If the insertion point moved to the 2nd block, we must adjust
+	 * the index.  We must also track the entry just following the
+	 * new entry for use in an "atomic rename" operation, that entry
+	 * is always the "old" entry and the "new" entry is what we are
+	 * inserting.  The index/blkno fields refer to the "old" entry,
+	 * while the index2/blkno2 fields refer to the "new" entry.
+	 */
+	if (blk1->index > INT_GET(leaf1->hdr.count, ARCH_CONVERT)) {
+		ASSERT(state->inleaf == 0);
+		blk2->index = blk1->index
+				- INT_GET(leaf1->hdr.count, ARCH_CONVERT);
+		args->index = args->index2 = blk2->index;
+		args->blkno = args->blkno2 = blk2->blkno;
+	} else if (blk1->index == INT_GET(leaf1->hdr.count, ARCH_CONVERT)) {
+		if (state->inleaf) {
+			args->index = blk1->index;
+			args->blkno = blk1->blkno;
+			args->index2 = 0;
+			args->blkno2 = blk2->blkno;
+		} else {
+			blk2->index = blk1->index
+				    - INT_GET(leaf1->hdr.count, ARCH_CONVERT);
+			args->index = args->index2 = blk2->index;
+			args->blkno = args->blkno2 = blk2->blkno;
+		}
+	} else {
+		ASSERT(state->inleaf == 1);
+		args->index = args->index2 = blk1->index;
+		args->blkno = args->blkno2 = blk1->blkno;
+	}
+}
+
+/*
+ * Examine entries until we reduce the absolute difference in
+ * byte usage between the two blocks to a minimum.
+ * GROT: Is this really necessary?  With other than a 512 byte blocksize,
+ * GROT: there will always be enough room in either block for a new entry.
+ * GROT: Do a double-split for this case?
+ */
+STATIC int
+xfs_attr_leaf_figure_balance(xfs_da_state_t *state,
+				    xfs_da_state_blk_t *blk1,
+				    xfs_da_state_blk_t *blk2,
+				    int *countarg, int *usedbytesarg)
+{
+	xfs_attr_leafblock_t *leaf1, *leaf2;
+	xfs_attr_leaf_hdr_t *hdr1, *hdr2;
+	xfs_attr_leaf_entry_t *entry;
+	int count, max, index, totallen, half;
+	int lastdelta, foundit, tmp;
+
+	/*
+	 * Set up environment.
+	 */
+	leaf1 = blk1->bp->data;
+	leaf2 = blk2->bp->data;
+	hdr1 = &leaf1->hdr;
+	hdr2 = &leaf2->hdr;
+	foundit = 0;
+	totallen = 0;
+
+	/*
+	 * Examine entries until we reduce the absolute difference in
+	 * byte usage between the two blocks to a minimum.
+	 */
+	max = INT_GET(hdr1->count, ARCH_CONVERT)
+			+ INT_GET(hdr2->count, ARCH_CONVERT);
+	half  = (max+1) * sizeof(*entry);
+	half += INT_GET(hdr1->usedbytes, ARCH_CONVERT)
+				+ INT_GET(hdr2->usedbytes, ARCH_CONVERT)
+				+ xfs_attr_leaf_newentsize(state->args,
+						     state->blocksize, NULL);
+	half /= 2;
+	lastdelta = state->blocksize;
+	entry = &leaf1->entries[0];
+	for (count = index = 0; count < max; entry++, index++, count++) {
+
+#define XFS_ATTR_ABS(A)	(((A) < 0) ? -(A) : (A))
+		/*
+		 * The new entry is in the first block, account for it.
+		 */
+		if (count == blk1->index) {
+			tmp = totallen + sizeof(*entry) +
+				xfs_attr_leaf_newentsize(state->args,
+							 state->blocksize,
+							 NULL);
+			if (XFS_ATTR_ABS(half - tmp) > lastdelta)
+				break;
+			lastdelta = XFS_ATTR_ABS(half - tmp);
+			totallen = tmp;
+			foundit = 1;
+		}
+
+		/*
+		 * Wrap around into the second block if necessary.
+		 */
+		if (count == INT_GET(hdr1->count, ARCH_CONVERT)) {
+			leaf1 = leaf2;
+			entry = &leaf1->entries[0];
+			index = 0;
+		}
+
+		/*
+		 * Figure out if next leaf entry would be too much.
+		 */
+		tmp = totallen + sizeof(*entry) + xfs_attr_leaf_entsize(leaf1,
+									index);
+		if (XFS_ATTR_ABS(half - tmp) > lastdelta)
+			break;
+		lastdelta = XFS_ATTR_ABS(half - tmp);
+		totallen = tmp;
+#undef XFS_ATTR_ABS
+	}
+
+	/*
+	 * Calculate the number of usedbytes that will end up in lower block.
+	 * If new entry not in lower block, fix up the count.
+	 */
+	totallen -= count * sizeof(*entry);
+	if (foundit) {
+		totallen -= sizeof(*entry) +
+				xfs_attr_leaf_newentsize(state->args,
+							 state->blocksize,
+							 NULL);
+	}
+
+	*countarg = count;
+	*usedbytesarg = totallen;
+	return(foundit);
+}
+
+/*========================================================================
+ * Routines used for shrinking the Btree.
+ *========================================================================*/
+
+/*
+ * Check a leaf block and its neighbors to see if the block should be
+ * collapsed into one or the other neighbor.  Always keep the block
+ * with the smaller block number.
+ * If the current block is over 50% full, don't try to join it, return 0.
+ * If the block is empty, fill in the state structure and return 2.
+ * If it can be collapsed, fill in the state structure and return 1.
+ * If nothing can be done, return 0.
+ *
+ * GROT: allow for INCOMPLETE entries in calculation.
+ */
+int
+xfs_attr_leaf_toosmall(xfs_da_state_t *state, int *action)
+{
+	xfs_attr_leafblock_t *leaf;
+	xfs_da_state_blk_t *blk;
+	xfs_da_blkinfo_t *info;
+	int count, bytes, forward, error, retval, i;
+	xfs_dablk_t blkno;
+	xfs_dabuf_t *bp;
+
+	/*
+	 * Check for the degenerate case of the block being over 50% full.
+	 * If so, it's not worth even looking to see if we might be able
+	 * to coalesce with a sibling.
+	 */
+	blk = &state->path.blk[ state->path.active-1 ];
+	info = blk->bp->data;
+	ASSERT(INT_GET(info->magic, ARCH_CONVERT) == XFS_ATTR_LEAF_MAGIC);
+	leaf = (xfs_attr_leafblock_t *)info;
+	count = INT_GET(leaf->hdr.count, ARCH_CONVERT);
+	bytes = sizeof(xfs_attr_leaf_hdr_t) +
+		count * sizeof(xfs_attr_leaf_entry_t) +
+		INT_GET(leaf->hdr.usedbytes, ARCH_CONVERT);
+	if (bytes > (state->blocksize >> 1)) {
+		*action = 0;	/* blk over 50%, don't try to join */
+		return(0);
+	}
+
+	/*
+	 * Check for the degenerate case of the block being empty.
+	 * If the block is empty, we'll simply delete it, no need to
+	 * coalesce it with a sibling block.  We choose (aribtrarily)
+	 * to merge with the forward block unless it is NULL.
+	 */
+	if (count == 0) {
+		/*
+		 * Make altpath point to the block we want to keep and
+		 * path point to the block we want to drop (this one).
+		 */
+		forward = (!INT_ISZERO(info->forw, ARCH_CONVERT));
+		memcpy(&state->altpath, &state->path, sizeof(state->path));
+		error = xfs_da_path_shift(state, &state->altpath, forward,
+						 0, &retval);
+		if (error)
+			return(error);
+		if (retval) {
+			*action = 0;
+		} else {
+			*action = 2;
+		}
+		return(0);
+	}
+
+	/*
+	 * Examine each sibling block to see if we can coalesce with
+	 * at least 25% free space to spare.  We need to figure out
+	 * whether to merge with the forward or the backward block.
+	 * We prefer coalescing with the lower numbered sibling so as
+	 * to shrink an attribute list over time.
+	 */
+	/* start with smaller blk num */
+	forward = (INT_GET(info->forw, ARCH_CONVERT)
+					< INT_GET(info->back, ARCH_CONVERT));
+	for (i = 0; i < 2; forward = !forward, i++) {
+		if (forward)
+			blkno = INT_GET(info->forw, ARCH_CONVERT);
+		else
+			blkno = INT_GET(info->back, ARCH_CONVERT);
+		if (blkno == 0)
+			continue;
+		error = xfs_da_read_buf(state->args->trans, state->args->dp,
+					blkno, -1, &bp, XFS_ATTR_FORK);
+		if (error)
+			return(error);
+		ASSERT(bp != NULL);
+
+		leaf = (xfs_attr_leafblock_t *)info;
+		count  = INT_GET(leaf->hdr.count, ARCH_CONVERT);
+		bytes  = state->blocksize - (state->blocksize>>2);
+		bytes -= INT_GET(leaf->hdr.usedbytes, ARCH_CONVERT);
+		leaf = bp->data;
+		ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT)
+						== XFS_ATTR_LEAF_MAGIC);
+		count += INT_GET(leaf->hdr.count, ARCH_CONVERT);
+		bytes -= INT_GET(leaf->hdr.usedbytes, ARCH_CONVERT);
+		bytes -= count * sizeof(xfs_attr_leaf_entry_t);
+		bytes -= sizeof(xfs_attr_leaf_hdr_t);
+		xfs_da_brelse(state->args->trans, bp);
+		if (bytes >= 0)
+			break;	/* fits with at least 25% to spare */
+	}
+	if (i >= 2) {
+		*action = 0;
+		return(0);
+	}
+
+	/*
+	 * Make altpath point to the block we want to keep (the lower
+	 * numbered block) and path point to the block we want to drop.
+	 */
+	memcpy(&state->altpath, &state->path, sizeof(state->path));
+	if (blkno < blk->blkno) {
+		error = xfs_da_path_shift(state, &state->altpath, forward,
+						 0, &retval);
+	} else {
+		error = xfs_da_path_shift(state, &state->path, forward,
+						 0, &retval);
+	}
+	if (error)
+		return(error);
+	if (retval) {
+		*action = 0;
+	} else {
+		*action = 1;
+	}
+	return(0);
+}
+
+/*
+ * Remove a name from the leaf attribute list structure.
+ *
+ * Return 1 if leaf is less than 37% full, 0 if >= 37% full.
+ * If two leaves are 37% full, when combined they will leave 25% free.
+ */
+int
+xfs_attr_leaf_remove(xfs_dabuf_t *bp, xfs_da_args_t *args)
+{
+	xfs_attr_leafblock_t *leaf;
+	xfs_attr_leaf_hdr_t *hdr;
+	xfs_attr_leaf_map_t *map;
+	xfs_attr_leaf_entry_t *entry;
+	int before, after, smallest, entsize;
+	int tablesize, tmp, i;
+	xfs_mount_t *mp;
+
+	leaf = bp->data;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT)
+						== XFS_ATTR_LEAF_MAGIC);
+	hdr = &leaf->hdr;
+	mp = args->trans->t_mountp;
+	ASSERT((INT_GET(hdr->count, ARCH_CONVERT) > 0)
+		&& (INT_GET(hdr->count, ARCH_CONVERT) < (XFS_LBSIZE(mp)/8)));
+	ASSERT((args->index >= 0)
+		&& (args->index < INT_GET(hdr->count, ARCH_CONVERT)));
+	ASSERT(INT_GET(hdr->firstused, ARCH_CONVERT)
+				>= ((INT_GET(hdr->count, ARCH_CONVERT)
+					* sizeof(*entry))+sizeof(*hdr)));
+	entry = &leaf->entries[args->index];
+	ASSERT(INT_GET(entry->nameidx, ARCH_CONVERT)
+				>= INT_GET(hdr->firstused, ARCH_CONVERT));
+	ASSERT(INT_GET(entry->nameidx, ARCH_CONVERT) < XFS_LBSIZE(mp));
+
+	/*
+	 * Scan through free region table:
+	 *    check for adjacency of free'd entry with an existing one,
+	 *    find smallest free region in case we need to replace it,
+	 *    adjust any map that borders the entry table,
+	 */
+	tablesize = INT_GET(hdr->count, ARCH_CONVERT)
+					* sizeof(xfs_attr_leaf_entry_t)
+					+ sizeof(xfs_attr_leaf_hdr_t);
+	map = &hdr->freemap[0];
+	tmp = INT_GET(map->size, ARCH_CONVERT);
+	before = after = -1;
+	smallest = XFS_ATTR_LEAF_MAPSIZE - 1;
+	entsize = xfs_attr_leaf_entsize(leaf, args->index);
+	for (i = 0; i < XFS_ATTR_LEAF_MAPSIZE; map++, i++) {
+		ASSERT(INT_GET(map->base, ARCH_CONVERT) < XFS_LBSIZE(mp));
+		ASSERT(INT_GET(map->size, ARCH_CONVERT) < XFS_LBSIZE(mp));
+		if (INT_GET(map->base, ARCH_CONVERT) == tablesize) {
+			INT_MOD(map->base, ARCH_CONVERT,
+					-sizeof(xfs_attr_leaf_entry_t));
+			INT_MOD(map->size, ARCH_CONVERT,
+					sizeof(xfs_attr_leaf_entry_t));
+		}
+
+		if ((INT_GET(map->base, ARCH_CONVERT)
+					+ INT_GET(map->size, ARCH_CONVERT))
+				== INT_GET(entry->nameidx, ARCH_CONVERT)) {
+			before = i;
+		} else if (INT_GET(map->base, ARCH_CONVERT)
+			== (INT_GET(entry->nameidx, ARCH_CONVERT) + entsize)) {
+			after = i;
+		} else if (INT_GET(map->size, ARCH_CONVERT) < tmp) {
+			tmp = INT_GET(map->size, ARCH_CONVERT);
+			smallest = i;
+		}
+	}
+
+	/*
+	 * Coalesce adjacent freemap regions,
+	 * or replace the smallest region.
+	 */
+	if ((before >= 0) || (after >= 0)) {
+		if ((before >= 0) && (after >= 0)) {
+			map = &hdr->freemap[before];
+			INT_MOD(map->size, ARCH_CONVERT, entsize);
+			INT_MOD(map->size, ARCH_CONVERT,
+				INT_GET(hdr->freemap[after].size,
+							ARCH_CONVERT));
+			INT_ZERO(hdr->freemap[after].base, ARCH_CONVERT);
+			INT_ZERO(hdr->freemap[after].size, ARCH_CONVERT);
+		} else if (before >= 0) {
+			map = &hdr->freemap[before];
+			INT_MOD(map->size, ARCH_CONVERT, entsize);
+		} else {
+			map = &hdr->freemap[after];
+			/* both on-disk, don't endian flip twice */
+			map->base = entry->nameidx;
+			INT_MOD(map->size, ARCH_CONVERT, entsize);
+		}
+	} else {
+		/*
+		 * Replace smallest region (if it is smaller than free'd entry)
+		 */
+		map = &hdr->freemap[smallest];
+		if (INT_GET(map->size, ARCH_CONVERT) < entsize) {
+			INT_SET(map->base, ARCH_CONVERT,
+					INT_GET(entry->nameidx, ARCH_CONVERT));
+			INT_SET(map->size, ARCH_CONVERT, entsize);
+		}
+	}
+
+	/*
+	 * Did we remove the first entry?
+	 */
+	if (INT_GET(entry->nameidx, ARCH_CONVERT)
+				== INT_GET(hdr->firstused, ARCH_CONVERT))
+		smallest = 1;
+	else
+		smallest = 0;
+
+	/*
+	 * Compress the remaining entries and zero out the removed stuff.
+	 */
+	memset(XFS_ATTR_LEAF_NAME(leaf, args->index), 0, entsize);
+	INT_MOD(hdr->usedbytes, ARCH_CONVERT, -entsize);
+	xfs_da_log_buf(args->trans, bp,
+	     XFS_DA_LOGRANGE(leaf, XFS_ATTR_LEAF_NAME(leaf, args->index),
+				   entsize));
+
+	tmp = (INT_GET(hdr->count, ARCH_CONVERT) - args->index)
+					* sizeof(xfs_attr_leaf_entry_t);
+	memmove((char *)entry, (char *)(entry+1), tmp);
+	INT_MOD(hdr->count, ARCH_CONVERT, -1);
+	xfs_da_log_buf(args->trans, bp,
+	    XFS_DA_LOGRANGE(leaf, entry, tmp + sizeof(*entry)));
+	entry = &leaf->entries[INT_GET(hdr->count, ARCH_CONVERT)];
+	memset((char *)entry, 0, sizeof(xfs_attr_leaf_entry_t));
+
+	/*
+	 * If we removed the first entry, re-find the first used byte
+	 * in the name area.  Note that if the entry was the "firstused",
+	 * then we don't have a "hole" in our block resulting from
+	 * removing the name.
+	 */
+	if (smallest) {
+		tmp = XFS_LBSIZE(mp);
+		entry = &leaf->entries[0];
+		for (i = INT_GET(hdr->count, ARCH_CONVERT)-1;
+						i >= 0; entry++, i--) {
+			ASSERT(INT_GET(entry->nameidx, ARCH_CONVERT)
+				>= INT_GET(hdr->firstused, ARCH_CONVERT));
+			ASSERT(INT_GET(entry->nameidx, ARCH_CONVERT)
+							< XFS_LBSIZE(mp));
+			if (INT_GET(entry->nameidx, ARCH_CONVERT) < tmp)
+				tmp = INT_GET(entry->nameidx, ARCH_CONVERT);
+		}
+		INT_SET(hdr->firstused, ARCH_CONVERT, tmp);
+		if (INT_ISZERO(hdr->firstused, ARCH_CONVERT)) {
+			INT_SET(hdr->firstused, ARCH_CONVERT,
+					tmp - XFS_ATTR_LEAF_NAME_ALIGN);
+		}
+	} else {
+		hdr->holes = 1;		/* mark as needing compaction */
+	}
+	xfs_da_log_buf(args->trans, bp,
+			  XFS_DA_LOGRANGE(leaf, hdr, sizeof(*hdr)));
+
+	/*
+	 * Check if leaf is less than 50% full, caller may want to
+	 * "join" the leaf with a sibling if so.
+	 */
+	tmp  = sizeof(xfs_attr_leaf_hdr_t);
+	tmp += INT_GET(leaf->hdr.count, ARCH_CONVERT)
+					* sizeof(xfs_attr_leaf_entry_t);
+	tmp += INT_GET(leaf->hdr.usedbytes, ARCH_CONVERT);
+	return(tmp < mp->m_attr_magicpct); /* leaf is < 37% full */
+}
+
+/*
+ * Move all the attribute list entries from drop_leaf into save_leaf.
+ */
+void
+xfs_attr_leaf_unbalance(xfs_da_state_t *state, xfs_da_state_blk_t *drop_blk,
+				       xfs_da_state_blk_t *save_blk)
+{
+	xfs_attr_leafblock_t *drop_leaf, *save_leaf, *tmp_leaf;
+	xfs_attr_leaf_hdr_t *drop_hdr, *save_hdr, *tmp_hdr;
+	xfs_mount_t *mp;
+	char *tmpbuffer;
+
+	/*
+	 * Set up environment.
+	 */
+	mp = state->mp;
+	ASSERT(drop_blk->magic == XFS_ATTR_LEAF_MAGIC);
+	ASSERT(save_blk->magic == XFS_ATTR_LEAF_MAGIC);
+	drop_leaf = drop_blk->bp->data;
+	save_leaf = save_blk->bp->data;
+	ASSERT(INT_GET(drop_leaf->hdr.info.magic, ARCH_CONVERT)
+						== XFS_ATTR_LEAF_MAGIC);
+	ASSERT(INT_GET(save_leaf->hdr.info.magic, ARCH_CONVERT)
+						== XFS_ATTR_LEAF_MAGIC);
+	drop_hdr = &drop_leaf->hdr;
+	save_hdr = &save_leaf->hdr;
+
+	/*
+	 * Save last hashval from dying block for later Btree fixup.
+	 */
+	drop_blk->hashval =
+		INT_GET(drop_leaf->entries[INT_GET(drop_leaf->hdr.count,
+						ARCH_CONVERT)-1].hashval,
+								ARCH_CONVERT);
+
+	/*
+	 * Check if we need a temp buffer, or can we do it in place.
+	 * Note that we don't check "leaf" for holes because we will
+	 * always be dropping it, toosmall() decided that for us already.
+	 */
+	if (save_hdr->holes == 0) {
+		/*
+		 * dest leaf has no holes, so we add there.  May need
+		 * to make some room in the entry array.
+		 */
+		if (xfs_attr_leaf_order(save_blk->bp, drop_blk->bp)) {
+			xfs_attr_leaf_moveents(drop_leaf, 0, save_leaf, 0,
+			     (int)INT_GET(drop_hdr->count, ARCH_CONVERT), mp);
+		} else {
+			xfs_attr_leaf_moveents(drop_leaf, 0, save_leaf,
+				  INT_GET(save_hdr->count, ARCH_CONVERT),
+				  (int)INT_GET(drop_hdr->count, ARCH_CONVERT),
+				  mp);
+		}
+	} else {
+		/*
+		 * Destination has holes, so we make a temporary copy
+		 * of the leaf and add them both to that.
+		 */
+		tmpbuffer = kmem_alloc(state->blocksize, KM_SLEEP);
+		ASSERT(tmpbuffer != NULL);
+		memset(tmpbuffer, 0, state->blocksize);
+		tmp_leaf = (xfs_attr_leafblock_t *)tmpbuffer;
+		tmp_hdr = &tmp_leaf->hdr;
+		tmp_hdr->info = save_hdr->info;	/* struct copy */
+		INT_ZERO(tmp_hdr->count, ARCH_CONVERT);
+		INT_SET(tmp_hdr->firstused, ARCH_CONVERT, state->blocksize);
+		if (INT_ISZERO(tmp_hdr->firstused, ARCH_CONVERT)) {
+			INT_SET(tmp_hdr->firstused, ARCH_CONVERT,
+				state->blocksize - XFS_ATTR_LEAF_NAME_ALIGN);
+		}
+		INT_ZERO(tmp_hdr->usedbytes, ARCH_CONVERT);
+		if (xfs_attr_leaf_order(save_blk->bp, drop_blk->bp)) {
+			xfs_attr_leaf_moveents(drop_leaf, 0, tmp_leaf, 0,
+				(int)INT_GET(drop_hdr->count, ARCH_CONVERT),
+				mp);
+			xfs_attr_leaf_moveents(save_leaf, 0, tmp_leaf,
+				  INT_GET(tmp_leaf->hdr.count, ARCH_CONVERT),
+				 (int)INT_GET(save_hdr->count, ARCH_CONVERT),
+				 mp);
+		} else {
+			xfs_attr_leaf_moveents(save_leaf, 0, tmp_leaf, 0,
+				(int)INT_GET(save_hdr->count, ARCH_CONVERT),
+				mp);
+			xfs_attr_leaf_moveents(drop_leaf, 0, tmp_leaf,
+				INT_GET(tmp_leaf->hdr.count, ARCH_CONVERT),
+				(int)INT_GET(drop_hdr->count, ARCH_CONVERT),
+				mp);
+		}
+		memcpy((char *)save_leaf, (char *)tmp_leaf, state->blocksize);
+		kmem_free(tmpbuffer, state->blocksize);
+	}
+
+	xfs_da_log_buf(state->args->trans, save_blk->bp, 0,
+					   state->blocksize - 1);
+
+	/*
+	 * Copy out last hashval in each block for B-tree code.
+	 */
+	save_blk->hashval =
+		INT_GET(save_leaf->entries[INT_GET(save_leaf->hdr.count,
+						ARCH_CONVERT)-1].hashval,
+								ARCH_CONVERT);
+}
+
+/*========================================================================
+ * Routines used for finding things in the Btree.
+ *========================================================================*/
+
+/*
+ * Look up a name in a leaf attribute list structure.
+ * This is the internal routine, it uses the caller's buffer.
+ *
+ * Note that duplicate keys are allowed, but only check within the
+ * current leaf node.  The Btree code must check in adjacent leaf nodes.
+ *
+ * Return in args->index the index into the entry[] array of either
+ * the found entry, or where the entry should have been (insert before
+ * that entry).
+ *
+ * Don't change the args->value unless we find the attribute.
+ */
+int
+xfs_attr_leaf_lookup_int(xfs_dabuf_t *bp, xfs_da_args_t *args)
+{
+	xfs_attr_leafblock_t *leaf;
+	xfs_attr_leaf_entry_t *entry;
+	xfs_attr_leaf_name_local_t *name_loc;
+	xfs_attr_leaf_name_remote_t *name_rmt;
+	int probe, span;
+	xfs_dahash_t hashval;
+
+	leaf = bp->data;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT)
+						== XFS_ATTR_LEAF_MAGIC);
+	ASSERT(INT_GET(leaf->hdr.count, ARCH_CONVERT)
+					< (XFS_LBSIZE(args->dp->i_mount)/8));
+
+	/*
+	 * Binary search.  (note: small blocks will skip this loop)
+	 */
+	hashval = args->hashval;
+	probe = span = INT_GET(leaf->hdr.count, ARCH_CONVERT) / 2;
+	for (entry = &leaf->entries[probe]; span > 4;
+		   entry = &leaf->entries[probe]) {
+		span /= 2;
+		if (INT_GET(entry->hashval, ARCH_CONVERT) < hashval)
+			probe += span;
+		else if (INT_GET(entry->hashval, ARCH_CONVERT) > hashval)
+			probe -= span;
+		else
+			break;
+	}
+	ASSERT((probe >= 0) && \
+	       ((INT_ISZERO(leaf->hdr.count, ARCH_CONVERT))
+	       || (probe < INT_GET(leaf->hdr.count, ARCH_CONVERT))));
+	ASSERT((span <= 4) || (INT_GET(entry->hashval, ARCH_CONVERT)
+							== hashval));
+
+	/*
+	 * Since we may have duplicate hashval's, find the first matching
+	 * hashval in the leaf.
+	 */
+	while ((probe > 0) && (INT_GET(entry->hashval, ARCH_CONVERT)
+							>= hashval)) {
+		entry--;
+		probe--;
+	}
+	while ((probe < INT_GET(leaf->hdr.count, ARCH_CONVERT))
+		&& (INT_GET(entry->hashval, ARCH_CONVERT) < hashval)) {
+		entry++;
+		probe++;
+	}
+	if ((probe == INT_GET(leaf->hdr.count, ARCH_CONVERT))
+		    || (INT_GET(entry->hashval, ARCH_CONVERT) != hashval)) {
+		args->index = probe;
+		return(XFS_ERROR(ENOATTR));
+	}
+
+	/*
+	 * Duplicate keys may be present, so search all of them for a match.
+	 */
+	for (  ; (probe < INT_GET(leaf->hdr.count, ARCH_CONVERT))
+			&& (INT_GET(entry->hashval, ARCH_CONVERT) == hashval);
+			entry++, probe++) {
+/*
+ * GROT: Add code to remove incomplete entries.
+ */
+		/*
+		 * If we are looking for INCOMPLETE entries, show only those.
+		 * If we are looking for complete entries, show only those.
+		 */
+		if ((args->flags & XFS_ATTR_INCOMPLETE) !=
+		    (entry->flags & XFS_ATTR_INCOMPLETE)) {
+			continue;
+		}
+		if (entry->flags & XFS_ATTR_LOCAL) {
+			name_loc = XFS_ATTR_LEAF_NAME_LOCAL(leaf, probe);
+			if (name_loc->namelen != args->namelen)
+				continue;
+			if (memcmp(args->name, (char *)name_loc->nameval,
+					     args->namelen) != 0)
+				continue;
+			if (((args->flags & ATTR_SECURE) != 0) !=
+			    ((entry->flags & XFS_ATTR_SECURE) != 0))
+				continue;
+			if (((args->flags & ATTR_ROOT) != 0) !=
+			    ((entry->flags & XFS_ATTR_ROOT) != 0))
+				continue;
+			args->index = probe;
+			return(XFS_ERROR(EEXIST));
+		} else {
+			name_rmt = XFS_ATTR_LEAF_NAME_REMOTE(leaf, probe);
+			if (name_rmt->namelen != args->namelen)
+				continue;
+			if (memcmp(args->name, (char *)name_rmt->name,
+					     args->namelen) != 0)
+				continue;
+			if (((args->flags & ATTR_SECURE) != 0) !=
+			    ((entry->flags & XFS_ATTR_SECURE) != 0))
+				continue;
+			if (((args->flags & ATTR_ROOT) != 0) !=
+			    ((entry->flags & XFS_ATTR_ROOT) != 0))
+				continue;
+			args->index = probe;
+			args->rmtblkno
+				  = INT_GET(name_rmt->valueblk, ARCH_CONVERT);
+			args->rmtblkcnt = XFS_B_TO_FSB(args->dp->i_mount,
+						   INT_GET(name_rmt->valuelen,
+								ARCH_CONVERT));
+			return(XFS_ERROR(EEXIST));
+		}
+	}
+	args->index = probe;
+	return(XFS_ERROR(ENOATTR));
+}
+
+/*
+ * Get the value associated with an attribute name from a leaf attribute
+ * list structure.
+ */
+int
+xfs_attr_leaf_getvalue(xfs_dabuf_t *bp, xfs_da_args_t *args)
+{
+	int valuelen;
+	xfs_attr_leafblock_t *leaf;
+	xfs_attr_leaf_entry_t *entry;
+	xfs_attr_leaf_name_local_t *name_loc;
+	xfs_attr_leaf_name_remote_t *name_rmt;
+
+	leaf = bp->data;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT)
+						== XFS_ATTR_LEAF_MAGIC);
+	ASSERT(INT_GET(leaf->hdr.count, ARCH_CONVERT)
+					< (XFS_LBSIZE(args->dp->i_mount)/8));
+	ASSERT(args->index < ((int)INT_GET(leaf->hdr.count, ARCH_CONVERT)));
+
+	entry = &leaf->entries[args->index];
+	if (entry->flags & XFS_ATTR_LOCAL) {
+		name_loc = XFS_ATTR_LEAF_NAME_LOCAL(leaf, args->index);
+		ASSERT(name_loc->namelen == args->namelen);
+		ASSERT(memcmp(args->name, name_loc->nameval, args->namelen) == 0);
+		valuelen = INT_GET(name_loc->valuelen, ARCH_CONVERT);
+		if (args->flags & ATTR_KERNOVAL) {
+			args->valuelen = valuelen;
+			return(0);
+		}
+		if (args->valuelen < valuelen) {
+			args->valuelen = valuelen;
+			return(XFS_ERROR(ERANGE));
+		}
+		args->valuelen = valuelen;
+		memcpy(args->value, &name_loc->nameval[args->namelen], valuelen);
+	} else {
+		name_rmt = XFS_ATTR_LEAF_NAME_REMOTE(leaf, args->index);
+		ASSERT(name_rmt->namelen == args->namelen);
+		ASSERT(memcmp(args->name, name_rmt->name, args->namelen) == 0);
+		valuelen = INT_GET(name_rmt->valuelen, ARCH_CONVERT);
+		args->rmtblkno = INT_GET(name_rmt->valueblk, ARCH_CONVERT);
+		args->rmtblkcnt = XFS_B_TO_FSB(args->dp->i_mount, valuelen);
+		if (args->flags & ATTR_KERNOVAL) {
+			args->valuelen = valuelen;
+			return(0);
+		}
+		if (args->valuelen < valuelen) {
+			args->valuelen = valuelen;
+			return(XFS_ERROR(ERANGE));
+		}
+		args->valuelen = valuelen;
+	}
+	return(0);
+}
+
+/*========================================================================
+ * Utility routines.
+ *========================================================================*/
+
+/*
+ * Move the indicated entries from one leaf to another.
+ * NOTE: this routine modifies both source and destination leaves.
+ */
+/*ARGSUSED*/
+STATIC void
+xfs_attr_leaf_moveents(xfs_attr_leafblock_t *leaf_s, int start_s,
+			xfs_attr_leafblock_t *leaf_d, int start_d,
+			int count, xfs_mount_t *mp)
+{
+	xfs_attr_leaf_hdr_t *hdr_s, *hdr_d;
+	xfs_attr_leaf_entry_t *entry_s, *entry_d;
+	int desti, tmp, i;
+
+	/*
+	 * Check for nothing to do.
+	 */
+	if (count == 0)
+		return;
+
+	/*
+	 * Set up environment.
+	 */
+	ASSERT(INT_GET(leaf_s->hdr.info.magic, ARCH_CONVERT)
+						== XFS_ATTR_LEAF_MAGIC);
+	ASSERT(INT_GET(leaf_d->hdr.info.magic, ARCH_CONVERT)
+						== XFS_ATTR_LEAF_MAGIC);
+	hdr_s = &leaf_s->hdr;
+	hdr_d = &leaf_d->hdr;
+	ASSERT((INT_GET(hdr_s->count, ARCH_CONVERT) > 0)
+				&& (INT_GET(hdr_s->count, ARCH_CONVERT)
+						< (XFS_LBSIZE(mp)/8)));
+	ASSERT(INT_GET(hdr_s->firstused, ARCH_CONVERT) >=
+		((INT_GET(hdr_s->count, ARCH_CONVERT)
+					* sizeof(*entry_s))+sizeof(*hdr_s)));
+	ASSERT(INT_GET(hdr_d->count, ARCH_CONVERT) < (XFS_LBSIZE(mp)/8));
+	ASSERT(INT_GET(hdr_d->firstused, ARCH_CONVERT) >=
+		((INT_GET(hdr_d->count, ARCH_CONVERT)
+					* sizeof(*entry_d))+sizeof(*hdr_d)));
+
+	ASSERT(start_s < INT_GET(hdr_s->count, ARCH_CONVERT));
+	ASSERT(start_d <= INT_GET(hdr_d->count, ARCH_CONVERT));
+	ASSERT(count <= INT_GET(hdr_s->count, ARCH_CONVERT));
+
+	/*
+	 * Move the entries in the destination leaf up to make a hole?
+	 */
+	if (start_d < INT_GET(hdr_d->count, ARCH_CONVERT)) {
+		tmp  = INT_GET(hdr_d->count, ARCH_CONVERT) - start_d;
+		tmp *= sizeof(xfs_attr_leaf_entry_t);
+		entry_s = &leaf_d->entries[start_d];
+		entry_d = &leaf_d->entries[start_d + count];
+		memmove((char *)entry_d, (char *)entry_s, tmp);
+	}
+
+	/*
+	 * Copy all entry's in the same (sorted) order,
+	 * but allocate attribute info packed and in sequence.
+	 */
+	entry_s = &leaf_s->entries[start_s];
+	entry_d = &leaf_d->entries[start_d];
+	desti = start_d;
+	for (i = 0; i < count; entry_s++, entry_d++, desti++, i++) {
+		ASSERT(INT_GET(entry_s->nameidx, ARCH_CONVERT)
+				>= INT_GET(hdr_s->firstused, ARCH_CONVERT));
+		tmp = xfs_attr_leaf_entsize(leaf_s, start_s + i);
+#ifdef GROT
+		/*
+		 * Code to drop INCOMPLETE entries.  Difficult to use as we
+		 * may also need to change the insertion index.  Code turned
+		 * off for 6.2, should be revisited later.
+		 */
+		if (entry_s->flags & XFS_ATTR_INCOMPLETE) { /* skip partials? */
+			memset(XFS_ATTR_LEAF_NAME(leaf_s, start_s + i), 0, tmp);
+			INT_MOD(hdr_s->usedbytes, ARCH_CONVERT, -tmp);
+			INT_MOD(hdr_s->count, ARCH_CONVERT, -1);
+			entry_d--;	/* to compensate for ++ in loop hdr */
+			desti--;
+			if ((start_s + i) < offset)
+				result++;	/* insertion index adjustment */
+		} else {
+#endif /* GROT */
+			INT_MOD(hdr_d->firstused, ARCH_CONVERT, -tmp);
+			/* both on-disk, don't endian flip twice */
+			entry_d->hashval = entry_s->hashval;
+			/* both on-disk, don't endian flip twice */
+			entry_d->nameidx = hdr_d->firstused;
+			entry_d->flags = entry_s->flags;
+			ASSERT(INT_GET(entry_d->nameidx, ARCH_CONVERT) + tmp
+							<= XFS_LBSIZE(mp));
+			memmove(XFS_ATTR_LEAF_NAME(leaf_d, desti),
+				XFS_ATTR_LEAF_NAME(leaf_s, start_s + i), tmp);
+			ASSERT(INT_GET(entry_s->nameidx, ARCH_CONVERT) + tmp
+							<= XFS_LBSIZE(mp));
+			memset(XFS_ATTR_LEAF_NAME(leaf_s, start_s + i), 0, tmp);
+			INT_MOD(hdr_s->usedbytes, ARCH_CONVERT, -tmp);
+			INT_MOD(hdr_d->usedbytes, ARCH_CONVERT, tmp);
+			INT_MOD(hdr_s->count, ARCH_CONVERT, -1);
+			INT_MOD(hdr_d->count, ARCH_CONVERT, 1);
+			tmp = INT_GET(hdr_d->count, ARCH_CONVERT)
+						* sizeof(xfs_attr_leaf_entry_t)
+						+ sizeof(xfs_attr_leaf_hdr_t);
+			ASSERT(INT_GET(hdr_d->firstused, ARCH_CONVERT) >= tmp);
+#ifdef GROT
+		}
+#endif /* GROT */
+	}
+
+	/*
+	 * Zero out the entries we just copied.
+	 */
+	if (start_s == INT_GET(hdr_s->count, ARCH_CONVERT)) {
+		tmp = count * sizeof(xfs_attr_leaf_entry_t);
+		entry_s = &leaf_s->entries[start_s];
+		ASSERT(((char *)entry_s + tmp) <=
+		       ((char *)leaf_s + XFS_LBSIZE(mp)));
+		memset((char *)entry_s, 0, tmp);
+	} else {
+		/*
+		 * Move the remaining entries down to fill the hole,
+		 * then zero the entries at the top.
+		 */
+		tmp  = INT_GET(hdr_s->count, ARCH_CONVERT) - count;
+		tmp *= sizeof(xfs_attr_leaf_entry_t);
+		entry_s = &leaf_s->entries[start_s + count];
+		entry_d = &leaf_s->entries[start_s];
+		memmove((char *)entry_d, (char *)entry_s, tmp);
+
+		tmp = count * sizeof(xfs_attr_leaf_entry_t);
+		entry_s = &leaf_s->entries[INT_GET(hdr_s->count,
+							ARCH_CONVERT)];
+		ASSERT(((char *)entry_s + tmp) <=
+		       ((char *)leaf_s + XFS_LBSIZE(mp)));
+		memset((char *)entry_s, 0, tmp);
+	}
+
+	/*
+	 * Fill in the freemap information
+	 */
+	INT_SET(hdr_d->freemap[0].base, ARCH_CONVERT,
+					sizeof(xfs_attr_leaf_hdr_t));
+	INT_MOD(hdr_d->freemap[0].base, ARCH_CONVERT,
+				INT_GET(hdr_d->count, ARCH_CONVERT)
+					* sizeof(xfs_attr_leaf_entry_t));
+	INT_SET(hdr_d->freemap[0].size, ARCH_CONVERT,
+				INT_GET(hdr_d->firstused, ARCH_CONVERT)
+			      - INT_GET(hdr_d->freemap[0].base, ARCH_CONVERT));
+	INT_ZERO(hdr_d->freemap[1].base, ARCH_CONVERT);
+	INT_ZERO(hdr_d->freemap[2].base, ARCH_CONVERT);
+	INT_ZERO(hdr_d->freemap[1].size, ARCH_CONVERT);
+	INT_ZERO(hdr_d->freemap[2].size, ARCH_CONVERT);
+	hdr_s->holes = 1;	/* leaf may not be compact */
+}
+
+/*
+ * Compare two leaf blocks "order".
+ * Return 0 unless leaf2 should go before leaf1.
+ */
+int
+xfs_attr_leaf_order(xfs_dabuf_t *leaf1_bp, xfs_dabuf_t *leaf2_bp)
+{
+	xfs_attr_leafblock_t *leaf1, *leaf2;
+
+	leaf1 = leaf1_bp->data;
+	leaf2 = leaf2_bp->data;
+	ASSERT((INT_GET(leaf1->hdr.info.magic, ARCH_CONVERT)
+						== XFS_ATTR_LEAF_MAGIC) &&
+	       (INT_GET(leaf2->hdr.info.magic, ARCH_CONVERT)
+						== XFS_ATTR_LEAF_MAGIC));
+	if (   (INT_GET(leaf1->hdr.count, ARCH_CONVERT) > 0)
+	    && (INT_GET(leaf2->hdr.count, ARCH_CONVERT) > 0)
+	    && (   (INT_GET(leaf2->entries[ 0 ].hashval, ARCH_CONVERT) <
+		      INT_GET(leaf1->entries[ 0 ].hashval, ARCH_CONVERT))
+		|| (INT_GET(leaf2->entries[INT_GET(leaf2->hdr.count,
+				ARCH_CONVERT)-1].hashval, ARCH_CONVERT) <
+		      INT_GET(leaf1->entries[INT_GET(leaf1->hdr.count,
+				ARCH_CONVERT)-1].hashval, ARCH_CONVERT))) ) {
+		return(1);
+	}
+	return(0);
+}
+
+/*
+ * Pick up the last hashvalue from a leaf block.
+ */
+xfs_dahash_t
+xfs_attr_leaf_lasthash(xfs_dabuf_t *bp, int *count)
+{
+	xfs_attr_leafblock_t *leaf;
+
+	leaf = bp->data;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT)
+						== XFS_ATTR_LEAF_MAGIC);
+	if (count)
+		*count = INT_GET(leaf->hdr.count, ARCH_CONVERT);
+	if (INT_ISZERO(leaf->hdr.count, ARCH_CONVERT))
+		return(0);
+	return(INT_GET(leaf->entries[INT_GET(leaf->hdr.count,
+				ARCH_CONVERT)-1].hashval, ARCH_CONVERT));
+}
+
+/*
+ * Calculate the number of bytes used to store the indicated attribute
+ * (whether local or remote only calculate bytes in this block).
+ */
+int
+xfs_attr_leaf_entsize(xfs_attr_leafblock_t *leaf, int index)
+{
+	xfs_attr_leaf_name_local_t *name_loc;
+	xfs_attr_leaf_name_remote_t *name_rmt;
+	int size;
+
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT)
+						== XFS_ATTR_LEAF_MAGIC);
+	if (leaf->entries[index].flags & XFS_ATTR_LOCAL) {
+		name_loc = XFS_ATTR_LEAF_NAME_LOCAL(leaf, index);
+		size = XFS_ATTR_LEAF_ENTSIZE_LOCAL(name_loc->namelen,
+						   INT_GET(name_loc->valuelen,
+								ARCH_CONVERT));
+	} else {
+		name_rmt = XFS_ATTR_LEAF_NAME_REMOTE(leaf, index);
+		size = XFS_ATTR_LEAF_ENTSIZE_REMOTE(name_rmt->namelen);
+	}
+	return(size);
+}
+
+/*
+ * Calculate the number of bytes that would be required to store the new
+ * attribute (whether local or remote only calculate bytes in this block).
+ * This routine decides as a side effect whether the attribute will be
+ * a "local" or a "remote" attribute.
+ */
+int
+xfs_attr_leaf_newentsize(xfs_da_args_t *args, int blocksize, int *local)
+{
+	int size;
+
+	size = XFS_ATTR_LEAF_ENTSIZE_LOCAL(args->namelen, args->valuelen);
+	if (size < XFS_ATTR_LEAF_ENTSIZE_LOCAL_MAX(blocksize)) {
+		if (local) {
+			*local = 1;
+		}
+	} else {
+		size = XFS_ATTR_LEAF_ENTSIZE_REMOTE(args->namelen);
+		if (local) {
+			*local = 0;
+		}
+	}
+	return(size);
+}
+
+/*
+ * Copy out attribute list entries for attr_list(), for leaf attribute lists.
+ */
+int
+xfs_attr_leaf_list_int(xfs_dabuf_t *bp, xfs_attr_list_context_t *context)
+{
+	attrlist_cursor_kern_t *cursor;
+	xfs_attr_leafblock_t *leaf;
+	xfs_attr_leaf_entry_t *entry;
+	xfs_attr_leaf_name_local_t *name_loc;
+	xfs_attr_leaf_name_remote_t *name_rmt;
+	int retval, i;
+
+	ASSERT(bp != NULL);
+	leaf = bp->data;
+	cursor = context->cursor;
+	cursor->initted = 1;
+
+	xfs_attr_trace_l_cl("blk start", context, leaf);
+
+	/*
+	 * Re-find our place in the leaf block if this is a new syscall.
+	 */
+	if (context->resynch) {
+		entry = &leaf->entries[0];
+		for (i = 0; i < INT_GET(leaf->hdr.count, ARCH_CONVERT);
+							entry++, i++) {
+			if (INT_GET(entry->hashval, ARCH_CONVERT)
+							== cursor->hashval) {
+				if (cursor->offset == context->dupcnt) {
+					context->dupcnt = 0;
+					break;
+				}
+				context->dupcnt++;
+			} else if (INT_GET(entry->hashval, ARCH_CONVERT)
+							> cursor->hashval) {
+				context->dupcnt = 0;
+				break;
+			}
+		}
+		if (i == INT_GET(leaf->hdr.count, ARCH_CONVERT)) {
+			xfs_attr_trace_l_c("not found", context);
+			return(0);
+		}
+	} else {
+		entry = &leaf->entries[0];
+		i = 0;
+	}
+	context->resynch = 0;
+
+	/*
+	 * We have found our place, start copying out the new attributes.
+	 */
+	retval = 0;
+	for (  ; (i < INT_GET(leaf->hdr.count, ARCH_CONVERT))
+	     && (retval == 0); entry++, i++) {
+		attrnames_t	*namesp;
+
+		if (INT_GET(entry->hashval, ARCH_CONVERT) != cursor->hashval) {
+			cursor->hashval = INT_GET(entry->hashval, ARCH_CONVERT);
+			cursor->offset = 0;
+		}
+
+		if (entry->flags & XFS_ATTR_INCOMPLETE)
+			continue;		/* skip incomplete entries */
+		if (((context->flags & ATTR_SECURE) != 0) !=
+		    ((entry->flags & XFS_ATTR_SECURE) != 0) &&
+		    !(context->flags & ATTR_KERNORMALS))
+			continue;		/* skip non-matching entries */
+		if (((context->flags & ATTR_ROOT) != 0) !=
+		    ((entry->flags & XFS_ATTR_ROOT) != 0) &&
+		    !(context->flags & ATTR_KERNROOTLS))
+			continue;		/* skip non-matching entries */
+
+		namesp = (entry->flags & XFS_ATTR_SECURE) ? &attr_secure :
+			((entry->flags & XFS_ATTR_ROOT) ? &attr_trusted :
+			  &attr_user);
+
+		if (entry->flags & XFS_ATTR_LOCAL) {
+			name_loc = XFS_ATTR_LEAF_NAME_LOCAL(leaf, i);
+			if (context->flags & ATTR_KERNOVAL) {
+				ASSERT(context->flags & ATTR_KERNAMELS);
+				context->count += namesp->attr_namelen +
+						(int)name_loc->namelen + 1;
+			} else {
+				retval = xfs_attr_put_listent(context, namesp,
+					(char *)name_loc->nameval,
+					(int)name_loc->namelen,
+					(int)INT_GET(name_loc->valuelen,
+								ARCH_CONVERT));
+			}
+		} else {
+			name_rmt = XFS_ATTR_LEAF_NAME_REMOTE(leaf, i);
+			if (context->flags & ATTR_KERNOVAL) {
+				ASSERT(context->flags & ATTR_KERNAMELS);
+				context->count += namesp->attr_namelen +
+						(int)name_rmt->namelen + 1;
+			} else {
+				retval = xfs_attr_put_listent(context, namesp,
+					(char *)name_rmt->name,
+					(int)name_rmt->namelen,
+					(int)INT_GET(name_rmt->valuelen,
+								ARCH_CONVERT));
+			}
+		}
+		if (retval == 0) {
+			cursor->offset++;
+		}
+	}
+	xfs_attr_trace_l_cl("blk end", context, leaf);
+	return(retval);
+}
+
+#define	ATTR_ENTBASESIZE		/* minimum bytes used by an attr */ \
+	(((struct attrlist_ent *) 0)->a_name - (char *) 0)
+#define	ATTR_ENTSIZE(namelen)		/* actual bytes used by an attr */ \
+	((ATTR_ENTBASESIZE + (namelen) + 1 + sizeof(u_int32_t)-1) \
+	 & ~(sizeof(u_int32_t)-1))
+
+/*
+ * Format an attribute and copy it out to the user's buffer.
+ * Take care to check values and protect against them changing later,
+ * we may be reading them directly out of a user buffer.
+ */
+/*ARGSUSED*/
+int
+xfs_attr_put_listent(xfs_attr_list_context_t *context,
+		     attrnames_t *namesp, char *name, int namelen, int valuelen)
+{
+	attrlist_ent_t *aep;
+	int arraytop;
+
+	ASSERT(!(context->flags & ATTR_KERNOVAL));
+	if (context->flags & ATTR_KERNAMELS) {
+		char *offset;
+
+		ASSERT(context->count >= 0);
+
+		arraytop = context->count + namesp->attr_namelen + namelen + 1;
+		if (arraytop > context->firstu) {
+			context->count = -1;	/* insufficient space */
+			return(1);
+		}
+		offset = (char *)context->alist + context->count;
+		strncpy(offset, namesp->attr_name, namesp->attr_namelen);
+		offset += namesp->attr_namelen;
+		strncpy(offset, name, namelen);			/* real name */
+		offset += namelen;
+		*offset = '\0';
+		context->count += namesp->attr_namelen + namelen + 1;
+		return(0);
+	}
+
+	ASSERT(context->count >= 0);
+	ASSERT(context->count < (ATTR_MAX_VALUELEN/8));
+	ASSERT(context->firstu >= sizeof(*context->alist));
+	ASSERT(context->firstu <= context->bufsize);
+
+	arraytop = sizeof(*context->alist) +
+			context->count * sizeof(context->alist->al_offset[0]);
+	context->firstu -= ATTR_ENTSIZE(namelen);
+	if (context->firstu < arraytop) {
+		xfs_attr_trace_l_c("buffer full", context);
+		context->alist->al_more = 1;
+		return(1);
+	}
+
+	aep = (attrlist_ent_t *)&(((char *)context->alist)[ context->firstu ]);
+	aep->a_valuelen = valuelen;
+	memcpy(aep->a_name, name, namelen);
+	aep->a_name[ namelen ] = 0;
+	context->alist->al_offset[ context->count++ ] = context->firstu;
+	context->alist->al_count = context->count;
+	xfs_attr_trace_l_c("add", context);
+	return(0);
+}
+
+/*========================================================================
+ * Manage the INCOMPLETE flag in a leaf entry
+ *========================================================================*/
+
+/*
+ * Clear the INCOMPLETE flag on an entry in a leaf block.
+ */
+int
+xfs_attr_leaf_clearflag(xfs_da_args_t *args)
+{
+	xfs_attr_leafblock_t *leaf;
+	xfs_attr_leaf_entry_t *entry;
+	xfs_attr_leaf_name_remote_t *name_rmt;
+	xfs_dabuf_t *bp;
+	int error;
+#ifdef DEBUG
+	xfs_attr_leaf_name_local_t *name_loc;
+	int namelen;
+	char *name;
+#endif /* DEBUG */
+
+	/*
+	 * Set up the operation.
+	 */
+	error = xfs_da_read_buf(args->trans, args->dp, args->blkno, -1, &bp,
+					     XFS_ATTR_FORK);
+	if (error) {
+		return(error);
+	}
+	ASSERT(bp != NULL);
+
+	leaf = bp->data;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT)
+						== XFS_ATTR_LEAF_MAGIC);
+	ASSERT(args->index < INT_GET(leaf->hdr.count, ARCH_CONVERT));
+	ASSERT(args->index >= 0);
+	entry = &leaf->entries[ args->index ];
+	ASSERT(entry->flags & XFS_ATTR_INCOMPLETE);
+
+#ifdef DEBUG
+	if (entry->flags & XFS_ATTR_LOCAL) {
+		name_loc = XFS_ATTR_LEAF_NAME_LOCAL(leaf, args->index);
+		namelen = name_loc->namelen;
+		name = (char *)name_loc->nameval;
+	} else {
+		name_rmt = XFS_ATTR_LEAF_NAME_REMOTE(leaf, args->index);
+		namelen = name_rmt->namelen;
+		name = (char *)name_rmt->name;
+	}
+	ASSERT(INT_GET(entry->hashval, ARCH_CONVERT) == args->hashval);
+	ASSERT(namelen == args->namelen);
+	ASSERT(memcmp(name, args->name, namelen) == 0);
+#endif /* DEBUG */
+
+	entry->flags &= ~XFS_ATTR_INCOMPLETE;
+	xfs_da_log_buf(args->trans, bp,
+			 XFS_DA_LOGRANGE(leaf, entry, sizeof(*entry)));
+
+	if (args->rmtblkno) {
+		ASSERT((entry->flags & XFS_ATTR_LOCAL) == 0);
+		name_rmt = XFS_ATTR_LEAF_NAME_REMOTE(leaf, args->index);
+		INT_SET(name_rmt->valueblk, ARCH_CONVERT, args->rmtblkno);
+		INT_SET(name_rmt->valuelen, ARCH_CONVERT, args->valuelen);
+		xfs_da_log_buf(args->trans, bp,
+			 XFS_DA_LOGRANGE(leaf, name_rmt, sizeof(*name_rmt)));
+	}
+	xfs_da_buf_done(bp);
+
+	/*
+	 * Commit the flag value change and start the next trans in series.
+	 */
+	error = xfs_attr_rolltrans(&args->trans, args->dp);
+
+	return(error);
+}
+
+/*
+ * Set the INCOMPLETE flag on an entry in a leaf block.
+ */
+int
+xfs_attr_leaf_setflag(xfs_da_args_t *args)
+{
+	xfs_attr_leafblock_t *leaf;
+	xfs_attr_leaf_entry_t *entry;
+	xfs_attr_leaf_name_remote_t *name_rmt;
+	xfs_dabuf_t *bp;
+	int error;
+
+	/*
+	 * Set up the operation.
+	 */
+	error = xfs_da_read_buf(args->trans, args->dp, args->blkno, -1, &bp,
+					     XFS_ATTR_FORK);
+	if (error) {
+		return(error);
+	}
+	ASSERT(bp != NULL);
+
+	leaf = bp->data;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT)
+						== XFS_ATTR_LEAF_MAGIC);
+	ASSERT(args->index < INT_GET(leaf->hdr.count, ARCH_CONVERT));
+	ASSERT(args->index >= 0);
+	entry = &leaf->entries[ args->index ];
+
+	ASSERT((entry->flags & XFS_ATTR_INCOMPLETE) == 0);
+	entry->flags |= XFS_ATTR_INCOMPLETE;
+	xfs_da_log_buf(args->trans, bp,
+			XFS_DA_LOGRANGE(leaf, entry, sizeof(*entry)));
+	if ((entry->flags & XFS_ATTR_LOCAL) == 0) {
+		name_rmt = XFS_ATTR_LEAF_NAME_REMOTE(leaf, args->index);
+		INT_ZERO(name_rmt->valueblk, ARCH_CONVERT);
+		INT_ZERO(name_rmt->valuelen, ARCH_CONVERT);
+		xfs_da_log_buf(args->trans, bp,
+			 XFS_DA_LOGRANGE(leaf, name_rmt, sizeof(*name_rmt)));
+	}
+	xfs_da_buf_done(bp);
+
+	/*
+	 * Commit the flag value change and start the next trans in series.
+	 */
+	error = xfs_attr_rolltrans(&args->trans, args->dp);
+
+	return(error);
+}
+
+/*
+ * In a single transaction, clear the INCOMPLETE flag on the leaf entry
+ * given by args->blkno/index and set the INCOMPLETE flag on the leaf
+ * entry given by args->blkno2/index2.
+ *
+ * Note that they could be in different blocks, or in the same block.
+ */
+int
+xfs_attr_leaf_flipflags(xfs_da_args_t *args)
+{
+	xfs_attr_leafblock_t *leaf1, *leaf2;
+	xfs_attr_leaf_entry_t *entry1, *entry2;
+	xfs_attr_leaf_name_remote_t *name_rmt;
+	xfs_dabuf_t *bp1, *bp2;
+	int error;
+#ifdef DEBUG
+	xfs_attr_leaf_name_local_t *name_loc;
+	int namelen1, namelen2;
+	char *name1, *name2;
+#endif /* DEBUG */
+
+	/*
+	 * Read the block containing the "old" attr
+	 */
+	error = xfs_da_read_buf(args->trans, args->dp, args->blkno, -1, &bp1,
+					     XFS_ATTR_FORK);
+	if (error) {
+		return(error);
+	}
+	ASSERT(bp1 != NULL);
+
+	/*
+	 * Read the block containing the "new" attr, if it is different
+	 */
+	if (args->blkno2 != args->blkno) {
+		error = xfs_da_read_buf(args->trans, args->dp, args->blkno2,
+					-1, &bp2, XFS_ATTR_FORK);
+		if (error) {
+			return(error);
+		}
+		ASSERT(bp2 != NULL);
+	} else {
+		bp2 = bp1;
+	}
+
+	leaf1 = bp1->data;
+	ASSERT(INT_GET(leaf1->hdr.info.magic, ARCH_CONVERT)
+						== XFS_ATTR_LEAF_MAGIC);
+	ASSERT(args->index < INT_GET(leaf1->hdr.count, ARCH_CONVERT));
+	ASSERT(args->index >= 0);
+	entry1 = &leaf1->entries[ args->index ];
+
+	leaf2 = bp2->data;
+	ASSERT(INT_GET(leaf2->hdr.info.magic, ARCH_CONVERT)
+						== XFS_ATTR_LEAF_MAGIC);
+	ASSERT(args->index2 < INT_GET(leaf2->hdr.count, ARCH_CONVERT));
+	ASSERT(args->index2 >= 0);
+	entry2 = &leaf2->entries[ args->index2 ];
+
+#ifdef DEBUG
+	if (entry1->flags & XFS_ATTR_LOCAL) {
+		name_loc = XFS_ATTR_LEAF_NAME_LOCAL(leaf1, args->index);
+		namelen1 = name_loc->namelen;
+		name1 = (char *)name_loc->nameval;
+	} else {
+		name_rmt = XFS_ATTR_LEAF_NAME_REMOTE(leaf1, args->index);
+		namelen1 = name_rmt->namelen;
+		name1 = (char *)name_rmt->name;
+	}
+	if (entry2->flags & XFS_ATTR_LOCAL) {
+		name_loc = XFS_ATTR_LEAF_NAME_LOCAL(leaf2, args->index2);
+		namelen2 = name_loc->namelen;
+		name2 = (char *)name_loc->nameval;
+	} else {
+		name_rmt = XFS_ATTR_LEAF_NAME_REMOTE(leaf2, args->index2);
+		namelen2 = name_rmt->namelen;
+		name2 = (char *)name_rmt->name;
+	}
+	ASSERT(INT_GET(entry1->hashval, ARCH_CONVERT) == INT_GET(entry2->hashval, ARCH_CONVERT));
+	ASSERT(namelen1 == namelen2);
+	ASSERT(memcmp(name1, name2, namelen1) == 0);
+#endif /* DEBUG */
+
+	ASSERT(entry1->flags & XFS_ATTR_INCOMPLETE);
+	ASSERT((entry2->flags & XFS_ATTR_INCOMPLETE) == 0);
+
+	entry1->flags &= ~XFS_ATTR_INCOMPLETE;
+	xfs_da_log_buf(args->trans, bp1,
+			  XFS_DA_LOGRANGE(leaf1, entry1, sizeof(*entry1)));
+	if (args->rmtblkno) {
+		ASSERT((entry1->flags & XFS_ATTR_LOCAL) == 0);
+		name_rmt = XFS_ATTR_LEAF_NAME_REMOTE(leaf1, args->index);
+		INT_SET(name_rmt->valueblk, ARCH_CONVERT, args->rmtblkno);
+		INT_SET(name_rmt->valuelen, ARCH_CONVERT, args->valuelen);
+		xfs_da_log_buf(args->trans, bp1,
+			 XFS_DA_LOGRANGE(leaf1, name_rmt, sizeof(*name_rmt)));
+	}
+
+	entry2->flags |= XFS_ATTR_INCOMPLETE;
+	xfs_da_log_buf(args->trans, bp2,
+			  XFS_DA_LOGRANGE(leaf2, entry2, sizeof(*entry2)));
+	if ((entry2->flags & XFS_ATTR_LOCAL) == 0) {
+		name_rmt = XFS_ATTR_LEAF_NAME_REMOTE(leaf2, args->index2);
+		INT_ZERO(name_rmt->valueblk, ARCH_CONVERT);
+		INT_ZERO(name_rmt->valuelen, ARCH_CONVERT);
+		xfs_da_log_buf(args->trans, bp2,
+			 XFS_DA_LOGRANGE(leaf2, name_rmt, sizeof(*name_rmt)));
+	}
+	xfs_da_buf_done(bp1);
+	if (bp1 != bp2)
+		xfs_da_buf_done(bp2);
+
+	/*
+	 * Commit the flag value change and start the next trans in series.
+	 */
+	error = xfs_attr_rolltrans(&args->trans, args->dp);
+
+	return(error);
+}
+
+/*========================================================================
+ * Indiscriminately delete the entire attribute fork
+ *========================================================================*/
+
+/*
+ * Recurse (gasp!) through the attribute nodes until we find leaves.
+ * We're doing a depth-first traversal in order to invalidate everything.
+ */
+int
+xfs_attr_root_inactive(xfs_trans_t **trans, xfs_inode_t *dp)
+{
+	xfs_da_blkinfo_t *info;
+	xfs_daddr_t blkno;
+	xfs_dabuf_t *bp;
+	int error;
+
+	/*
+	 * Read block 0 to see what we have to work with.
+	 * We only get here if we have extents, since we remove
+	 * the extents in reverse order the extent containing
+	 * block 0 must still be there.
+	 */
+	error = xfs_da_read_buf(*trans, dp, 0, -1, &bp, XFS_ATTR_FORK);
+	if (error)
+		return(error);
+	blkno = xfs_da_blkno(bp);
+
+	/*
+	 * Invalidate the tree, even if the "tree" is only a single leaf block.
+	 * This is a depth-first traversal!
+	 */
+	info = bp->data;
+	if (INT_GET(info->magic, ARCH_CONVERT) == XFS_DA_NODE_MAGIC) {
+		error = xfs_attr_node_inactive(trans, dp, bp, 1);
+	} else if (INT_GET(info->magic, ARCH_CONVERT) == XFS_ATTR_LEAF_MAGIC) {
+		error = xfs_attr_leaf_inactive(trans, dp, bp);
+	} else {
+		error = XFS_ERROR(EIO);
+		xfs_da_brelse(*trans, bp);
+	}
+	if (error)
+		return(error);
+
+	/*
+	 * Invalidate the incore copy of the root block.
+	 */
+	error = xfs_da_get_buf(*trans, dp, 0, blkno, &bp, XFS_ATTR_FORK);
+	if (error)
+		return(error);
+	xfs_da_binval(*trans, bp);	/* remove from cache */
+	/*
+	 * Commit the invalidate and start the next transaction.
+	 */
+	error = xfs_attr_rolltrans(trans, dp);
+
+	return (error);
+}
+
+/*
+ * Recurse (gasp!) through the attribute nodes until we find leaves.
+ * We're doing a depth-first traversal in order to invalidate everything.
+ */
+int
+xfs_attr_node_inactive(xfs_trans_t **trans, xfs_inode_t *dp, xfs_dabuf_t *bp,
+				   int level)
+{
+	xfs_da_blkinfo_t *info;
+	xfs_da_intnode_t *node;
+	xfs_dablk_t child_fsb;
+	xfs_daddr_t parent_blkno, child_blkno;
+	int error, count, i;
+	xfs_dabuf_t *child_bp;
+
+	/*
+	 * Since this code is recursive (gasp!) we must protect ourselves.
+	 */
+	if (level > XFS_DA_NODE_MAXDEPTH) {
+		xfs_da_brelse(*trans, bp);	/* no locks for later trans */
+		return(XFS_ERROR(EIO));
+	}
+
+	node = bp->data;
+	ASSERT(INT_GET(node->hdr.info.magic, ARCH_CONVERT)
+						== XFS_DA_NODE_MAGIC);
+	parent_blkno = xfs_da_blkno(bp);	/* save for re-read later */
+	count = INT_GET(node->hdr.count, ARCH_CONVERT);
+	if (!count) {
+		xfs_da_brelse(*trans, bp);
+		return(0);
+	}
+	child_fsb = INT_GET(node->btree[0].before, ARCH_CONVERT);
+	xfs_da_brelse(*trans, bp);	/* no locks for later trans */
+
+	/*
+	 * If this is the node level just above the leaves, simply loop
+	 * over the leaves removing all of them.  If this is higher up
+	 * in the tree, recurse downward.
+	 */
+	for (i = 0; i < count; i++) {
+		/*
+		 * Read the subsidiary block to see what we have to work with.
+		 * Don't do this in a transaction.  This is a depth-first
+		 * traversal of the tree so we may deal with many blocks
+		 * before we come back to this one.
+		 */
+		error = xfs_da_read_buf(*trans, dp, child_fsb, -2, &child_bp,
+						XFS_ATTR_FORK);
+		if (error)
+			return(error);
+		if (child_bp) {
+						/* save for re-read later */
+			child_blkno = xfs_da_blkno(child_bp);
+
+			/*
+			 * Invalidate the subtree, however we have to.
+			 */
+			info = child_bp->data;
+			if (INT_GET(info->magic, ARCH_CONVERT)
+							== XFS_DA_NODE_MAGIC) {
+				error = xfs_attr_node_inactive(trans, dp,
+						child_bp, level+1);
+			} else if (INT_GET(info->magic, ARCH_CONVERT)
+						== XFS_ATTR_LEAF_MAGIC) {
+				error = xfs_attr_leaf_inactive(trans, dp,
+						child_bp);
+			} else {
+				error = XFS_ERROR(EIO);
+				xfs_da_brelse(*trans, child_bp);
+			}
+			if (error)
+				return(error);
+
+			/*
+			 * Remove the subsidiary block from the cache
+			 * and from the log.
+			 */
+			error = xfs_da_get_buf(*trans, dp, 0, child_blkno,
+				&child_bp, XFS_ATTR_FORK);
+			if (error)
+				return(error);
+			xfs_da_binval(*trans, child_bp);
+		}
+
+		/*
+		 * If we're not done, re-read the parent to get the next
+		 * child block number.
+		 */
+		if ((i+1) < count) {
+			error = xfs_da_read_buf(*trans, dp, 0, parent_blkno,
+				&bp, XFS_ATTR_FORK);
+			if (error)
+				return(error);
+			child_fsb = INT_GET(node->btree[i+1].before, ARCH_CONVERT);
+			xfs_da_brelse(*trans, bp);
+		}
+		/*
+		 * Atomically commit the whole invalidate stuff.
+		 */
+		if ((error = xfs_attr_rolltrans(trans, dp)))
+			return (error);
+	}
+
+	return(0);
+}
+
+/*
+ * Invalidate all of the "remote" value regions pointed to by a particular
+ * leaf block.
+ * Note that we must release the lock on the buffer so that we are not
+ * caught holding something that the logging code wants to flush to disk.
+ */
+int
+xfs_attr_leaf_inactive(xfs_trans_t **trans, xfs_inode_t *dp, xfs_dabuf_t *bp)
+{
+	xfs_attr_leafblock_t *leaf;
+	xfs_attr_leaf_entry_t *entry;
+	xfs_attr_leaf_name_remote_t *name_rmt;
+	xfs_attr_inactive_list_t *list, *lp;
+	int error, count, size, tmp, i;
+
+	leaf = bp->data;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT)
+						== XFS_ATTR_LEAF_MAGIC);
+
+	/*
+	 * Count the number of "remote" value extents.
+	 */
+	count = 0;
+	entry = &leaf->entries[0];
+	for (i = 0; i < INT_GET(leaf->hdr.count, ARCH_CONVERT); entry++, i++) {
+		if (   INT_GET(entry->nameidx, ARCH_CONVERT)
+		    && ((entry->flags & XFS_ATTR_LOCAL) == 0)) {
+			name_rmt = XFS_ATTR_LEAF_NAME_REMOTE(leaf, i);
+			if (!INT_ISZERO(name_rmt->valueblk, ARCH_CONVERT))
+				count++;
+		}
+	}
+
+	/*
+	 * If there are no "remote" values, we're done.
+	 */
+	if (count == 0) {
+		xfs_da_brelse(*trans, bp);
+		return(0);
+	}
+
+	/*
+	 * Allocate storage for a list of all the "remote" value extents.
+	 */
+	size = count * sizeof(xfs_attr_inactive_list_t);
+	list = (xfs_attr_inactive_list_t *)kmem_alloc(size, KM_SLEEP);
+
+	/*
+	 * Identify each of the "remote" value extents.
+	 */
+	lp = list;
+	entry = &leaf->entries[0];
+	for (i = 0; i < INT_GET(leaf->hdr.count, ARCH_CONVERT); entry++, i++) {
+		if (   INT_GET(entry->nameidx, ARCH_CONVERT)
+		    && ((entry->flags & XFS_ATTR_LOCAL) == 0)) {
+			name_rmt = XFS_ATTR_LEAF_NAME_REMOTE(leaf, i);
+			if (!INT_ISZERO(name_rmt->valueblk, ARCH_CONVERT)) {
+				/* both on-disk, don't endian flip twice */
+				lp->valueblk = name_rmt->valueblk;
+				INT_SET(lp->valuelen, ARCH_CONVERT,
+						XFS_B_TO_FSB(dp->i_mount,
+						    INT_GET(name_rmt->valuelen,
+							      ARCH_CONVERT)));
+				lp++;
+			}
+		}
+	}
+	xfs_da_brelse(*trans, bp);	/* unlock for trans. in freextent() */
+
+	/*
+	 * Invalidate each of the "remote" value extents.
+	 */
+	error = 0;
+	for (lp = list, i = 0; i < count; i++, lp++) {
+		tmp = xfs_attr_leaf_freextent(trans, dp,
+						     INT_GET(lp->valueblk,
+								ARCH_CONVERT),
+						     INT_GET(lp->valuelen,
+								ARCH_CONVERT));
+		if (error == 0)
+			error = tmp;	/* save only the 1st errno */
+	}
+
+	kmem_free((xfs_caddr_t)list, size);
+	return(error);
+}
+
+/*
+ * Look at all the extents for this logical region,
+ * invalidate any buffers that are incore/in transactions.
+ */
+int
+xfs_attr_leaf_freextent(xfs_trans_t **trans, xfs_inode_t *dp,
+				    xfs_dablk_t blkno, int blkcnt)
+{
+	xfs_bmbt_irec_t map;
+	xfs_dablk_t tblkno;
+	int tblkcnt, dblkcnt, nmap, error;
+	xfs_daddr_t dblkno;
+	xfs_buf_t *bp;
+
+	/*
+	 * Roll through the "value", invalidating the attribute value's
+	 * blocks.
+	 */
+	tblkno = blkno;
+	tblkcnt = blkcnt;
+	while (tblkcnt > 0) {
+		/*
+		 * Try to remember where we decided to put the value.
+		 */
+		nmap = 1;
+		error = xfs_bmapi(*trans, dp, (xfs_fileoff_t)tblkno, tblkcnt,
+					XFS_BMAPI_ATTRFORK | XFS_BMAPI_METADATA,
+					NULL, 0, &map, &nmap, NULL);
+		if (error) {
+			return(error);
+		}
+		ASSERT(nmap == 1);
+		ASSERT(map.br_startblock != DELAYSTARTBLOCK);
+
+		/*
+		 * If it's a hole, these are already unmapped
+		 * so there's nothing to invalidate.
+		 */
+		if (map.br_startblock != HOLESTARTBLOCK) {
+
+			dblkno = XFS_FSB_TO_DADDR(dp->i_mount,
+						  map.br_startblock);
+			dblkcnt = XFS_FSB_TO_BB(dp->i_mount,
+						map.br_blockcount);
+			bp = xfs_trans_get_buf(*trans,
+					dp->i_mount->m_ddev_targp,
+					dblkno, dblkcnt, XFS_BUF_LOCK);
+			xfs_trans_binval(*trans, bp);
+			/*
+			 * Roll to next transaction.
+			 */
+			if ((error = xfs_attr_rolltrans(trans, dp)))
+				return (error);
+		}
+
+		tblkno += map.br_blockcount;
+		tblkcnt -= map.br_blockcount;
+	}
+
+	return(0);
+}
+
+
+/*
+ * Roll from one trans in the sequence of PERMANENT transactions to the next.
+ */
+int
+xfs_attr_rolltrans(xfs_trans_t **transp, xfs_inode_t *dp)
+{
+	xfs_trans_t *trans;
+	unsigned int logres, count;
+	int	error;
+
+	/*
+	 * Ensure that the inode is always logged.
+	 */
+	trans = *transp;
+	xfs_trans_log_inode(trans, dp, XFS_ILOG_CORE);
+
+	/*
+	 * Copy the critical parameters from one trans to the next.
+	 */
+	logres = trans->t_log_res;
+	count = trans->t_log_count;
+	*transp = xfs_trans_dup(trans);
+
+	/*
+	 * Commit the current transaction.
+	 * If this commit failed, then it'd just unlock those items that
+	 * are not marked ihold. That also means that a filesystem shutdown
+	 * is in progress. The caller takes the responsibility to cancel
+	 * the duplicate transaction that gets returned.
+	 */
+	if ((error = xfs_trans_commit(trans, 0, NULL)))
+		return (error);
+
+	trans = *transp;
+
+	/*
+	 * Reserve space in the log for th next transaction.
+	 * This also pushes items in the "AIL", the list of logged items,
+	 * out to disk if they are taking up space at the tail of the log
+	 * that we want to use.  This requires that either nothing be locked
+	 * across this call, or that anything that is locked be logged in
+	 * the prior and the next transactions.
+	 */
+	error = xfs_trans_reserve(trans, 0, logres, 0,
+				  XFS_TRANS_PERM_LOG_RES, count);
+	/*
+	 *  Ensure that the inode is in the new transaction and locked.
+	 */
+	if (!error) {
+		xfs_trans_ijoin(trans, dp, XFS_ILOCK_EXCL);
+		xfs_trans_ihold(trans, dp);
+	}
+	return (error);
+
+}
diff --git a/fs/xfs/xfs_attr_leaf.h b/fs/xfs/xfs_attr_leaf.h
new file mode 100644
index 00000000000000..b1480e0b334922
--- /dev/null
+++ b/fs/xfs/xfs_attr_leaf.h
@@ -0,0 +1,308 @@
+/*
+ * Copyright (c) 2000, 2002-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_ATTR_LEAF_H__
+#define	__XFS_ATTR_LEAF_H__
+
+/*
+ * Attribute storage layout, internal structure, access macros, etc.
+ *
+ * Attribute lists are structured around Btrees where all the data
+ * elements are in the leaf nodes.  Attribute names are hashed into an int,
+ * then that int is used as the index into the Btree.  Since the hashval
+ * of an attribute name may not be unique, we may have duplicate keys.  The
+ * internal links in the Btree are logical block offsets into the file.
+ */
+
+struct attrlist;
+struct attrlist_cursor_kern;
+struct attrnames;
+struct xfs_dabuf;
+struct xfs_da_args;
+struct xfs_da_state;
+struct xfs_da_state_blk;
+struct xfs_inode;
+struct xfs_trans;
+
+/*========================================================================
+ * Attribute structure when equal to XFS_LBSIZE(mp) bytes.
+ *========================================================================*/
+
+/*
+ * This is the structure of the leaf nodes in the Btree.
+ *
+ * Struct leaf_entry's are packed from the top.  Name/values grow from the
+ * bottom but are not packed.  The freemap contains run-length-encoded entries
+ * for the free bytes after the leaf_entry's, but only the N largest such,
+ * smaller runs are dropped.  When the freemap doesn't show enough space
+ * for an allocation, we compact the name/value area and try again.  If we
+ * still don't have enough space, then we have to split the block.  The
+ * name/value structs (both local and remote versions) must be 32bit aligned.
+ *
+ * Since we have duplicate hash keys, for each key that matches, compare
+ * the actual name string.  The root and intermediate node search always
+ * takes the first-in-the-block key match found, so we should only have
+ * to work "forw"ard.  If none matches, continue with the "forw"ard leaf
+ * nodes until the hash key changes or the attribute name is found.
+ *
+ * We store the fact that an attribute is a ROOT/USER/SECURE attribute in
+ * the leaf_entry.  The namespaces are independent only because we also look
+ * at the namespace bit when we are looking for a matching attribute name.
+ *
+ * We also store a "incomplete" bit in the leaf_entry.  It shows that an
+ * attribute is in the middle of being created and should not be shown to
+ * the user if we crash during the time that the bit is set.  We clear the
+ * bit when we have finished setting up the attribute.  We do this because
+ * we cannot create some large attributes inside a single transaction, and we
+ * need some indication that we weren't finished if we crash in the middle.
+ */
+#define XFS_ATTR_LEAF_MAPSIZE	3	/* how many freespace slots */
+
+typedef struct xfs_attr_leafblock {
+	struct xfs_attr_leaf_hdr {	/* constant-structure header block */
+		xfs_da_blkinfo_t info;	/* block type, links, etc. */
+		__uint16_t count;	/* count of active leaf_entry's */
+		__uint16_t usedbytes;	/* num bytes of names/values stored */
+		__uint16_t firstused;	/* first used byte in name area */
+		__uint8_t  holes;	/* != 0 if blk needs compaction */
+		__uint8_t  pad1;
+		struct xfs_attr_leaf_map {	  /* RLE map of free bytes */
+			__uint16_t base;	  /* base of free region */
+			__uint16_t size;	  /* length of free region */
+		} freemap[XFS_ATTR_LEAF_MAPSIZE]; /* N largest free regions */
+	} hdr;
+	struct xfs_attr_leaf_entry {	/* sorted on key, not name */
+		xfs_dahash_t hashval;	/* hash value of name */
+		__uint16_t nameidx;	/* index into buffer of name/value */
+		__uint8_t flags;	/* LOCAL/ROOT/SECURE/INCOMPLETE flag */
+		__uint8_t pad2;		/* unused pad byte */
+	} entries[1];			/* variable sized array */
+	struct xfs_attr_leaf_name_local {
+		__uint16_t valuelen;	/* number of bytes in value */
+		__uint8_t namelen;	/* length of name bytes */
+		__uint8_t nameval[1];	/* name/value bytes */
+	} namelist;			/* grows from bottom of buf */
+	struct xfs_attr_leaf_name_remote {
+		xfs_dablk_t valueblk;	/* block number of value bytes */
+		__uint32_t valuelen;	/* number of bytes in value */
+		__uint8_t namelen;	/* length of name bytes */
+		__uint8_t name[1];	/* name bytes */
+	} valuelist;			/* grows from bottom of buf */
+} xfs_attr_leafblock_t;
+typedef struct xfs_attr_leaf_hdr xfs_attr_leaf_hdr_t;
+typedef struct xfs_attr_leaf_map xfs_attr_leaf_map_t;
+typedef struct xfs_attr_leaf_entry xfs_attr_leaf_entry_t;
+typedef struct xfs_attr_leaf_name_local xfs_attr_leaf_name_local_t;
+typedef struct xfs_attr_leaf_name_remote xfs_attr_leaf_name_remote_t;
+
+/*
+ * Flags used in the leaf_entry[i].flags field.
+ * NOTE: the INCOMPLETE bit must not collide with the flags bits specified
+ * on the system call, they are "or"ed together for various operations.
+ */
+#define	XFS_ATTR_LOCAL_BIT	0	/* attr is stored locally */
+#define	XFS_ATTR_ROOT_BIT	1	/* limit access to trusted attrs */
+#define	XFS_ATTR_SECURE_BIT	2	/* limit access to secure attrs */
+#define	XFS_ATTR_INCOMPLETE_BIT	7	/* attr in middle of create/delete */
+#define XFS_ATTR_LOCAL		(1 << XFS_ATTR_LOCAL_BIT)
+#define XFS_ATTR_ROOT		(1 << XFS_ATTR_ROOT_BIT)
+#define XFS_ATTR_SECURE		(1 << XFS_ATTR_SECURE_BIT)
+#define XFS_ATTR_INCOMPLETE	(1 << XFS_ATTR_INCOMPLETE_BIT)
+
+/*
+ * Alignment for namelist and valuelist entries (since they are mixed
+ * there can be only one alignment value)
+ */
+#define	XFS_ATTR_LEAF_NAME_ALIGN	((uint)sizeof(xfs_dablk_t))
+
+/*
+ * Cast typed pointers for "local" and "remote" name/value structs.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ATTR_LEAF_NAME_REMOTE)
+xfs_attr_leaf_name_remote_t *
+xfs_attr_leaf_name_remote(xfs_attr_leafblock_t *leafp, int idx);
+#define XFS_ATTR_LEAF_NAME_REMOTE(leafp,idx)	\
+	xfs_attr_leaf_name_remote(leafp,idx)
+#else
+#define XFS_ATTR_LEAF_NAME_REMOTE(leafp,idx)	/* remote name struct ptr */ \
+	((xfs_attr_leaf_name_remote_t *)		\
+	 &((char *)(leafp))[ INT_GET((leafp)->entries[idx].nameidx, ARCH_CONVERT) ])
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ATTR_LEAF_NAME_LOCAL)
+xfs_attr_leaf_name_local_t *
+xfs_attr_leaf_name_local(xfs_attr_leafblock_t *leafp, int idx);
+#define XFS_ATTR_LEAF_NAME_LOCAL(leafp,idx)	\
+	xfs_attr_leaf_name_local(leafp,idx)
+#else
+#define XFS_ATTR_LEAF_NAME_LOCAL(leafp,idx)	/* local name struct ptr */ \
+	((xfs_attr_leaf_name_local_t *)		\
+	 &((char *)(leafp))[ INT_GET((leafp)->entries[idx].nameidx, ARCH_CONVERT) ])
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ATTR_LEAF_NAME)
+char *xfs_attr_leaf_name(xfs_attr_leafblock_t *leafp, int idx);
+#define XFS_ATTR_LEAF_NAME(leafp,idx)		xfs_attr_leaf_name(leafp,idx)
+#else
+#define XFS_ATTR_LEAF_NAME(leafp,idx)		/* generic name struct ptr */ \
+	(&((char *)(leafp))[ INT_GET((leafp)->entries[idx].nameidx, ARCH_CONVERT) ])
+#endif
+
+/*
+ * Calculate total bytes used (including trailing pad for alignment) for
+ * a "local" name/value structure, a "remote" name/value structure, and
+ * a pointer which might be either.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ATTR_LEAF_ENTSIZE_REMOTE)
+int xfs_attr_leaf_entsize_remote(int nlen);
+#define XFS_ATTR_LEAF_ENTSIZE_REMOTE(nlen)	\
+	xfs_attr_leaf_entsize_remote(nlen)
+#else
+#define XFS_ATTR_LEAF_ENTSIZE_REMOTE(nlen)	/* space for remote struct */ \
+	(((uint)sizeof(xfs_attr_leaf_name_remote_t) - 1 + (nlen) + \
+	  XFS_ATTR_LEAF_NAME_ALIGN - 1) & ~(XFS_ATTR_LEAF_NAME_ALIGN - 1))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ATTR_LEAF_ENTSIZE_LOCAL)
+int xfs_attr_leaf_entsize_local(int nlen, int vlen);
+#define XFS_ATTR_LEAF_ENTSIZE_LOCAL(nlen,vlen)	\
+	xfs_attr_leaf_entsize_local(nlen,vlen)
+#else
+#define XFS_ATTR_LEAF_ENTSIZE_LOCAL(nlen,vlen)	/* space for local struct */ \
+	(((uint)sizeof(xfs_attr_leaf_name_local_t) - 1 + (nlen) + (vlen) + \
+	  XFS_ATTR_LEAF_NAME_ALIGN - 1) & ~(XFS_ATTR_LEAF_NAME_ALIGN - 1))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ATTR_LEAF_ENTSIZE_LOCAL_MAX)
+int xfs_attr_leaf_entsize_local_max(int bsize);
+#define XFS_ATTR_LEAF_ENTSIZE_LOCAL_MAX(bsize)	\
+	xfs_attr_leaf_entsize_local_max(bsize)
+#else
+#define XFS_ATTR_LEAF_ENTSIZE_LOCAL_MAX(bsize)	/* max local struct size */ \
+	(((bsize) >> 1) + ((bsize) >> 2))
+#endif
+
+
+/*========================================================================
+ * Structure used to pass context around among the routines.
+ *========================================================================*/
+
+typedef struct xfs_attr_list_context {
+	struct xfs_inode		*dp;	/* inode */
+	struct attrlist_cursor_kern	*cursor;/* position in list */
+	struct attrlist			*alist;	/* output buffer */
+	int				count;	/* num used entries */
+	int				dupcnt;	/* count dup hashvals seen */
+	int				bufsize;/* total buffer size */
+	int				firstu;	/* first used byte in buffer */
+	int				flags;	/* from VOP call */
+	int				resynch;/* T/F: resynch with cursor */
+} xfs_attr_list_context_t;
+
+/*
+ * Used to keep a list of "remote value" extents when unlinking an inode.
+ */
+typedef struct xfs_attr_inactive_list {
+	xfs_dablk_t	valueblk;	/* block number of value bytes */
+	int		valuelen;	/* number of bytes in value */
+} xfs_attr_inactive_list_t;
+
+
+/*========================================================================
+ * Function prototypes for the kernel.
+ *========================================================================*/
+
+/*
+ * Internal routines when dirsize < XFS_LITINO(mp).
+ */
+int	xfs_attr_shortform_create(struct xfs_da_args *args);
+int	xfs_attr_shortform_add(struct xfs_da_args *add);
+int	xfs_attr_shortform_lookup(struct xfs_da_args *args);
+int	xfs_attr_shortform_getvalue(struct xfs_da_args *args);
+int	xfs_attr_shortform_to_leaf(struct xfs_da_args *args);
+int	xfs_attr_shortform_remove(struct xfs_da_args *remove);
+int	xfs_attr_shortform_list(struct xfs_attr_list_context *context);
+int	xfs_attr_shortform_allfit(struct xfs_dabuf *bp, struct xfs_inode *dp);
+
+/*
+ * Internal routines when dirsize == XFS_LBSIZE(mp).
+ */
+int	xfs_attr_leaf_to_node(struct xfs_da_args *args);
+int	xfs_attr_leaf_to_shortform(struct xfs_dabuf *bp,
+					  struct xfs_da_args *args);
+int	xfs_attr_leaf_clearflag(struct xfs_da_args *args);
+int	xfs_attr_leaf_setflag(struct xfs_da_args *args);
+int	xfs_attr_leaf_flipflags(xfs_da_args_t *args);
+
+/*
+ * Routines used for growing the Btree.
+ */
+int	xfs_attr_leaf_create(struct xfs_da_args *args, xfs_dablk_t which_block,
+				    struct xfs_dabuf **bpp);
+int	xfs_attr_leaf_split(struct xfs_da_state *state,
+				   struct xfs_da_state_blk *oldblk,
+				   struct xfs_da_state_blk *newblk);
+int	xfs_attr_leaf_lookup_int(struct xfs_dabuf *leaf,
+					struct xfs_da_args *args);
+int	xfs_attr_leaf_getvalue(struct xfs_dabuf *bp, struct xfs_da_args *args);
+int	xfs_attr_leaf_add(struct xfs_dabuf *leaf_buffer,
+				 struct xfs_da_args *args);
+int	xfs_attr_leaf_remove(struct xfs_dabuf *leaf_buffer,
+				    struct xfs_da_args *args);
+int	xfs_attr_leaf_list_int(struct xfs_dabuf *bp,
+				      struct xfs_attr_list_context *context);
+
+/*
+ * Routines used for shrinking the Btree.
+ */
+int	xfs_attr_leaf_toosmall(struct xfs_da_state *state, int *retval);
+void	xfs_attr_leaf_unbalance(struct xfs_da_state *state,
+				       struct xfs_da_state_blk *drop_blk,
+				       struct xfs_da_state_blk *save_blk);
+int	xfs_attr_root_inactive(struct xfs_trans **trans, struct xfs_inode *dp);
+int	xfs_attr_node_inactive(struct xfs_trans **trans, struct xfs_inode *dp,
+				      struct xfs_dabuf *bp, int level);
+int	xfs_attr_leaf_inactive(struct xfs_trans **trans, struct xfs_inode *dp,
+				      struct xfs_dabuf *bp);
+int	xfs_attr_leaf_freextent(struct xfs_trans **trans, struct xfs_inode *dp,
+				       xfs_dablk_t blkno, int blkcnt);
+
+/*
+ * Utility routines.
+ */
+xfs_dahash_t	xfs_attr_leaf_lasthash(struct xfs_dabuf *bp, int *count);
+int	xfs_attr_leaf_order(struct xfs_dabuf *leaf1_bp,
+				   struct xfs_dabuf *leaf2_bp);
+int	xfs_attr_leaf_newentsize(struct xfs_da_args *args, int blocksize,
+					int *local);
+int	xfs_attr_leaf_entsize(struct xfs_attr_leafblock *leaf, int index);
+int	xfs_attr_put_listent(struct xfs_attr_list_context *context,
+			     struct attrnames *, char *name, int namelen,
+			     int valuelen);
+int	xfs_attr_rolltrans(struct xfs_trans **transp, struct xfs_inode *dp);
+
+#endif	/* __XFS_ATTR_LEAF_H__ */
diff --git a/fs/xfs/xfs_attr_sf.h b/fs/xfs/xfs_attr_sf.h
new file mode 100644
index 00000000000000..ef7d2942d30607
--- /dev/null
+++ b/fs/xfs/xfs_attr_sf.h
@@ -0,0 +1,149 @@
+/*
+ * Copyright (c) 2000, 2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_ATTR_SF_H__
+#define	__XFS_ATTR_SF_H__
+
+/*
+ * Attribute storage when stored inside the inode.
+ *
+ * Small attribute lists are packed as tightly as possible so as
+ * to fit into the literal area of the inode.
+ */
+
+struct xfs_inode;
+
+/*
+ * Entries are packed toward the top as tight as possible.
+ */
+typedef struct xfs_attr_shortform {
+	struct xfs_attr_sf_hdr {	/* constant-structure header block */
+		__uint16_t totsize;	/* total bytes in shortform list */
+		__uint8_t count;	/* count of active entries */
+	} hdr;
+	struct xfs_attr_sf_entry {
+		__uint8_t namelen;	/* actual length of name (no NULL) */
+		__uint8_t valuelen;	/* actual length of value (no NULL) */
+		__uint8_t flags;	/* flags bits (see xfs_attr_leaf.h) */
+		__uint8_t nameval[1];	/* name & value bytes concatenated */
+	} list[1];			/* variable sized array */
+} xfs_attr_shortform_t;
+typedef struct xfs_attr_sf_hdr xfs_attr_sf_hdr_t;
+typedef struct xfs_attr_sf_entry xfs_attr_sf_entry_t;
+
+/*
+ * We generate this then sort it, attr_list() must return things in hash-order.
+ */
+typedef struct xfs_attr_sf_sort {
+	__uint8_t	entno;		/* entry number in original list */
+	__uint8_t	namelen;	/* length of name value (no null) */
+	__uint8_t	valuelen;	/* length of value */
+	__uint8_t	flags;		/* flags bits (see xfs_attr_leaf.h) */
+	xfs_dahash_t	hash;		/* this entry's hash value */
+	char		*name;		/* name value, pointer into buffer */
+} xfs_attr_sf_sort_t;
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ATTR_SF_ENTSIZE_BYNAME)
+int xfs_attr_sf_entsize_byname(int nlen, int vlen);
+#define XFS_ATTR_SF_ENTSIZE_BYNAME(nlen,vlen)	\
+	xfs_attr_sf_entsize_byname(nlen,vlen)
+#else
+#define XFS_ATTR_SF_ENTSIZE_BYNAME(nlen,vlen)	/* space name/value uses */ \
+	((int)sizeof(xfs_attr_sf_entry_t)-1 + (nlen)+(vlen))
+#endif
+#define XFS_ATTR_SF_ENTSIZE_MAX			/* max space for name&value */ \
+	((1 << (NBBY*(int)sizeof(__uint8_t))) - 1)
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ATTR_SF_ENTSIZE)
+int xfs_attr_sf_entsize(xfs_attr_sf_entry_t *sfep);
+#define XFS_ATTR_SF_ENTSIZE(sfep)	xfs_attr_sf_entsize(sfep)
+#else
+#define XFS_ATTR_SF_ENTSIZE(sfep)		/* space an entry uses */ \
+	((int)sizeof(xfs_attr_sf_entry_t)-1 + (sfep)->namelen+(sfep)->valuelen)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ATTR_SF_NEXTENTRY)
+xfs_attr_sf_entry_t *xfs_attr_sf_nextentry(xfs_attr_sf_entry_t *sfep);
+#define XFS_ATTR_SF_NEXTENTRY(sfep)	xfs_attr_sf_nextentry(sfep)
+#else
+#define XFS_ATTR_SF_NEXTENTRY(sfep)		/* next entry in struct */ \
+	((xfs_attr_sf_entry_t *) \
+		((char *)(sfep) + XFS_ATTR_SF_ENTSIZE(sfep)))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ATTR_SF_TOTSIZE)
+int xfs_attr_sf_totsize(struct xfs_inode *dp);
+#define XFS_ATTR_SF_TOTSIZE(dp)		xfs_attr_sf_totsize(dp)
+#else
+#define XFS_ATTR_SF_TOTSIZE(dp)			/* total space in use */ \
+	(INT_GET(((xfs_attr_shortform_t *)((dp)->i_afp->if_u1.if_data))->hdr.totsize, ARCH_CONVERT))
+#endif
+
+#if defined(XFS_ATTR_TRACE)
+/*
+ * Kernel tracing support for attribute lists
+ */
+struct xfs_attr_list_context;
+struct xfs_da_intnode;
+struct xfs_da_node_entry;
+struct xfs_attr_leafblock;
+
+#define	XFS_ATTR_TRACE_SIZE	4096	/* size of global trace buffer */
+extern ktrace_t	*xfs_attr_trace_buf;
+
+/*
+ * Trace record types.
+ */
+#define	XFS_ATTR_KTRACE_L_C	1	/* context */
+#define	XFS_ATTR_KTRACE_L_CN	2	/* context, node */
+#define	XFS_ATTR_KTRACE_L_CB	3	/* context, btree */
+#define	XFS_ATTR_KTRACE_L_CL	4	/* context, leaf */
+
+void xfs_attr_trace_l_c(char *where, struct xfs_attr_list_context *context);
+void xfs_attr_trace_l_cn(char *where, struct xfs_attr_list_context *context,
+			      struct xfs_da_intnode *node);
+void xfs_attr_trace_l_cb(char *where, struct xfs_attr_list_context *context,
+			      struct xfs_da_node_entry *btree);
+void xfs_attr_trace_l_cl(char *where, struct xfs_attr_list_context *context,
+			      struct xfs_attr_leafblock *leaf);
+void xfs_attr_trace_enter(int type, char *where,
+			     __psunsigned_t a2, __psunsigned_t a3,
+			     __psunsigned_t a4, __psunsigned_t a5,
+			     __psunsigned_t a6, __psunsigned_t a7,
+			     __psunsigned_t a8, __psunsigned_t a9,
+			     __psunsigned_t a10, __psunsigned_t a11,
+			     __psunsigned_t a12, __psunsigned_t a13,
+			     __psunsigned_t a14, __psunsigned_t a15);
+#else
+#define	xfs_attr_trace_l_c(w,c)
+#define	xfs_attr_trace_l_cn(w,c,n)
+#define	xfs_attr_trace_l_cb(w,c,b)
+#define	xfs_attr_trace_l_cl(w,c,l)
+#endif /* XFS_ATTR_TRACE */
+
+#endif	/* __XFS_ATTR_SF_H__ */
diff --git a/fs/xfs/xfs_behavior.c b/fs/xfs/xfs_behavior.c
new file mode 100644
index 00000000000000..16088e175ecc3d
--- /dev/null
+++ b/fs/xfs/xfs_behavior.c
@@ -0,0 +1,218 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ *
+ */
+#include "xfs.h"
+
+/*
+ * Source file used to associate/disassociate behaviors with virtualized
+ * objects.  See xfs_behavior.h for more information about behaviors, etc.
+ *
+ * The implementation is split between functions in this file and macros
+ * in xfs_behavior.h.
+ */
+
+/*
+ * Insert a new behavior descriptor into a behavior chain.
+ *
+ * The behavior chain is ordered based on the 'position' number which
+ * lives in the first field of the ops vector (higher numbers first).
+ *
+ * Attemps to insert duplicate ops result in an EINVAL return code.
+ * Otherwise, return 0 to indicate success.
+ */
+int
+bhv_insert(bhv_head_t *bhp, bhv_desc_t *bdp)
+{
+	bhv_desc_t	*curdesc, *prev;
+	int		position;
+
+	/*
+	 * Validate the position value of the new behavior.
+	 */
+	position = BHV_POSITION(bdp);
+	ASSERT(position >= BHV_POSITION_BASE && position <= BHV_POSITION_TOP);
+
+	/*
+	 * Find location to insert behavior.  Check for duplicates.
+	 */
+	prev = NULL;
+	for (curdesc = bhp->bh_first;
+	     curdesc != NULL;
+	     curdesc = curdesc->bd_next) {
+
+		/* Check for duplication. */
+		if (curdesc->bd_ops == bdp->bd_ops) {
+			ASSERT(0);
+			return EINVAL;
+		}
+
+		/* Find correct position */
+		if (position >= BHV_POSITION(curdesc)) {
+			ASSERT(position != BHV_POSITION(curdesc));
+			break;		/* found it */
+		}
+
+		prev = curdesc;
+	}
+
+	if (prev == NULL) {
+		/* insert at front of chain */
+		bdp->bd_next = bhp->bh_first;
+		bhp->bh_first = bdp;
+	} else {
+		/* insert after prev */
+		bdp->bd_next = prev->bd_next;
+		prev->bd_next = bdp;
+	}
+
+	return 0;
+}
+
+/*
+ * Remove a behavior descriptor from a position in a behavior chain;
+ * the postition is guaranteed not to be the first position.
+ * Should only be called by the bhv_remove() macro.
+ */
+void
+bhv_remove_not_first(bhv_head_t *bhp, bhv_desc_t *bdp)
+{
+	bhv_desc_t	*curdesc, *prev;
+
+	ASSERT(bhp->bh_first != NULL);
+	ASSERT(bhp->bh_first->bd_next != NULL);
+
+	prev = bhp->bh_first;
+	for (curdesc = bhp->bh_first->bd_next;
+	     curdesc != NULL;
+	     curdesc = curdesc->bd_next) {
+
+		if (curdesc == bdp)
+			break;		/* found it */
+		prev = curdesc;
+	}
+
+	ASSERT(curdesc == bdp);
+	prev->bd_next = bdp->bd_next;	/* remove from after prev */
+}
+
+/*
+ * Look for a specific ops vector on the specified behavior chain.
+ * Return the associated behavior descriptor.  Or NULL, if not found.
+ */
+bhv_desc_t *
+bhv_lookup(bhv_head_t *bhp, void *ops)
+{
+	bhv_desc_t	*curdesc;
+
+	for (curdesc = bhp->bh_first;
+	     curdesc != NULL;
+	     curdesc = curdesc->bd_next) {
+
+		if (curdesc->bd_ops == ops)
+			return curdesc;
+	}
+
+	return NULL;
+}
+
+/*
+ * Looks for the first behavior within a specified range of positions.
+ * Return the associated behavior descriptor.  Or NULL, if none found.
+ */
+bhv_desc_t *
+bhv_lookup_range(bhv_head_t *bhp, int low, int high)
+{
+	bhv_desc_t	*curdesc;
+
+	for (curdesc = bhp->bh_first;
+	     curdesc != NULL;
+	     curdesc = curdesc->bd_next) {
+
+		int	position = BHV_POSITION(curdesc);
+
+		if (position <= high) {
+			if (position >= low)
+				return curdesc;
+			return NULL;
+		}
+	}
+
+	return NULL;
+}
+
+/*
+ * Return the base behavior in the chain, or NULL if the chain
+ * is empty.
+ *
+ * The caller has not read locked the behavior chain, so acquire the
+ * lock before traversing the chain.
+ */
+bhv_desc_t *
+bhv_base(bhv_head_t *bhp)
+{
+	bhv_desc_t	*curdesc;
+
+	for (curdesc = bhp->bh_first;
+	     curdesc != NULL;
+	     curdesc = curdesc->bd_next) {
+
+		if (curdesc->bd_next == NULL) {
+			return curdesc;
+		}
+	}
+
+	return NULL;
+}
+
+void
+bhv_head_init(
+	bhv_head_t *bhp,
+	char *name)
+{
+	bhp->bh_first = NULL;
+}
+
+void
+bhv_insert_initial(
+	bhv_head_t *bhp,
+	bhv_desc_t *bdp)
+{
+	ASSERT(bhp->bh_first == NULL);
+	(bhp)->bh_first = bdp;
+}
+
+void
+bhv_head_destroy(
+	bhv_head_t *bhp)
+{
+	ASSERT(bhp->bh_first == NULL);
+}
diff --git a/fs/xfs/xfs_behavior.h b/fs/xfs/xfs_behavior.h
new file mode 100644
index 00000000000000..d5ed5a843921c5
--- /dev/null
+++ b/fs/xfs/xfs_behavior.h
@@ -0,0 +1,204 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_BEHAVIOR_H__
+#define __XFS_BEHAVIOR_H__
+
+/*
+ * Header file used to associate behaviors with virtualized objects.
+ *
+ * A virtualized object is an internal, virtualized representation of
+ * OS entities such as persistent files, processes, or sockets.  Examples
+ * of virtualized objects include vnodes, vprocs, and vsockets.  Often
+ * a virtualized object is referred to simply as an "object."
+ *
+ * A behavior is essentially an implementation layer associated with
+ * an object.  Multiple behaviors for an object are chained together,
+ * the order of chaining determining the order of invocation.  Each
+ * behavior of a given object implements the same set of interfaces
+ * (e.g., the VOP interfaces).
+ *
+ * Behaviors may be dynamically inserted into an object's behavior chain,
+ * such that the addition is transparent to consumers that already have
+ * references to the object.  Typically, a given behavior will be inserted
+ * at a particular location in the behavior chain.  Insertion of new
+ * behaviors is synchronized with operations-in-progress (oip's) so that
+ * the oip's always see a consistent view of the chain.
+ *
+ * The term "interpostion" is used to refer to the act of inserting
+ * a behavior such that it interposes on (i.e., is inserted in front
+ * of) a particular other behavior.  A key example of this is when a
+ * system implementing distributed single system image wishes to
+ * interpose a distribution layer (providing distributed coherency)
+ * in front of an object that is otherwise only accessed locally.
+ *
+ * Note that the traditional vnode/inode combination is simply a virtualized
+ * object that has exactly one associated behavior.
+ *
+ * Behavior synchronization is logic which is necessary under certain
+ * circumstances that there is no conflict between ongoing operations
+ * traversing the behavior chain and those dunamically modifying the
+ * behavior chain.  Because behavior synchronization adds extra overhead
+ * to virtual operation invocation, we want to restrict, as much as
+ * we can, the requirement for this extra code, to those situations
+ * in which it is truly necessary.
+ *
+ * Behavior synchronization is needed whenever there's at least one class
+ * of object in the system for which:
+ * 1) multiple behaviors for a given object are supported,
+ * -- AND --
+ * 2a) insertion of a new behavior can happen dynamically at any time during
+ *     the life of an active object,
+ *	-- AND --
+ *	3a) insertion of a new behavior needs to synchronize with existing
+ *	    ops-in-progress.
+ *	-- OR --
+ *	3b) multiple different behaviors can be dynamically inserted at
+ *	    any time during the life of an active object
+ *	-- OR --
+ *	3c) removal of a behavior can occur at any time during the life of
+ *	    an active object.
+ * -- OR --
+ * 2b) removal of a behavior can occur at any time during the life of an
+ *     active object
+ *
+ */
+
+struct bhv_head_lock;
+
+/*
+ * Behavior head.  Head of the chain of behaviors.
+ * Contained within each virtualized object data structure.
+ */
+typedef struct bhv_head {
+	struct bhv_desc *bh_first;	/* first behavior in chain */
+	struct bhv_head_lock *bh_lockp;	/* pointer to lock info struct */
+} bhv_head_t;
+
+/*
+ * Behavior descriptor.	 Descriptor associated with each behavior.
+ * Contained within the behavior's private data structure.
+ */
+typedef struct bhv_desc {
+	void		*bd_pdata;	/* private data for this behavior */
+	void		*bd_vobj;	/* virtual object associated with */
+	void		*bd_ops;	/* ops for this behavior */
+	struct bhv_desc *bd_next;	/* next behavior in chain */
+} bhv_desc_t;
+
+/*
+ * Behavior identity field.  A behavior's identity determines the position
+ * where it lives within a behavior chain, and it's always the first field
+ * of the behavior's ops vector. The optional id field further identifies the
+ * subsystem responsible for the behavior.
+ */
+typedef struct bhv_identity {
+	__u16	bi_id;		/* owning subsystem id */
+	__u16	bi_position;	/* position in chain */
+} bhv_identity_t;
+
+typedef bhv_identity_t bhv_position_t;
+
+#define BHV_IDENTITY_INIT(id,pos)	{id, pos}
+#define BHV_IDENTITY_INIT_POSITION(pos) BHV_IDENTITY_INIT(0, pos)
+
+/*
+ * Define boundaries of position values.
+ */
+#define BHV_POSITION_INVALID	0	/* invalid position number */
+#define BHV_POSITION_BASE	1	/* base (last) implementation layer */
+#define BHV_POSITION_TOP	63	/* top (first) implementation layer */
+
+/*
+ * Plumbing macros.
+ */
+#define BHV_HEAD_FIRST(bhp)	(ASSERT((bhp)->bh_first), (bhp)->bh_first)
+#define BHV_NEXT(bdp)		(ASSERT((bdp)->bd_next), (bdp)->bd_next)
+#define BHV_NEXTNULL(bdp)	((bdp)->bd_next)
+#define BHV_VOBJ(bdp)		(ASSERT((bdp)->bd_vobj), (bdp)->bd_vobj)
+#define BHV_VOBJNULL(bdp)	((bdp)->bd_vobj)
+#define BHV_PDATA(bdp)		(bdp)->bd_pdata
+#define BHV_OPS(bdp)		(bdp)->bd_ops
+#define BHV_IDENTITY(bdp)	((bhv_identity_t *)(bdp)->bd_ops)
+#define BHV_POSITION(bdp)	(BHV_IDENTITY(bdp)->bi_position)
+
+extern void bhv_head_init(bhv_head_t *, char *);
+extern void bhv_head_destroy(bhv_head_t *);
+extern int  bhv_insert(bhv_head_t *, bhv_desc_t *);
+extern void bhv_insert_initial(bhv_head_t *, bhv_desc_t *);
+
+/*
+ * Initialize a new behavior descriptor.
+ * Arguments:
+ *   bdp - pointer to behavior descriptor
+ *   pdata - pointer to behavior's private data
+ *   vobj - pointer to associated virtual object
+ *   ops - pointer to ops for this behavior
+ */
+#define bhv_desc_init(bdp, pdata, vobj, ops)		\
+ {							\
+	(bdp)->bd_pdata = pdata;			\
+	(bdp)->bd_vobj = vobj;				\
+	(bdp)->bd_ops = ops;				\
+	(bdp)->bd_next = NULL;				\
+ }
+
+/*
+ * Remove a behavior descriptor from a behavior chain.
+ */
+#define bhv_remove(bhp, bdp)				\
+ {							\
+	if ((bhp)->bh_first == (bdp)) {			\
+		/*					\
+		* Remove from front of chain.		\
+		* Atomic wrt oip's.			\
+		*/					\
+	       (bhp)->bh_first = (bdp)->bd_next;	\
+	} else {					\
+	       /* remove from non-front of chain */	\
+	       bhv_remove_not_first(bhp, bdp);		\
+	}						\
+	(bdp)->bd_vobj = NULL;				\
+ }
+
+/*
+ * Behavior module prototypes.
+ */
+extern void		bhv_remove_not_first(bhv_head_t *bhp, bhv_desc_t *bdp);
+extern bhv_desc_t *	bhv_lookup(bhv_head_t *bhp, void *ops);
+extern bhv_desc_t *	bhv_lookup_range(bhv_head_t *bhp, int low, int high);
+extern bhv_desc_t *	bhv_base(bhv_head_t *bhp);
+
+/* No bhv locking on Linux */
+#define bhv_lookup_unlocked	bhv_lookup
+#define bhv_base_unlocked	bhv_base
+
+#endif /* __XFS_BEHAVIOR_H__ */
diff --git a/fs/xfs/xfs_bit.c b/fs/xfs/xfs_bit.c
new file mode 100644
index 00000000000000..a20a6c3dc13e75
--- /dev/null
+++ b/fs/xfs/xfs_bit.c
@@ -0,0 +1,312 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+/*
+ * XFS bit manipulation routines, used in non-realtime code.
+ */
+
+#include "xfs.h"
+#include "xfs_bit.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_buf_item.h"
+
+
+#ifndef HAVE_ARCH_HIGHBIT
+/*
+ * Index of high bit number in byte, -1 for none set, 0..7 otherwise.
+ */
+const char xfs_highbit[256] = {
+       -1, 0, 1, 1, 2, 2, 2, 2,			/* 00 .. 07 */
+	3, 3, 3, 3, 3, 3, 3, 3,			/* 08 .. 0f */
+	4, 4, 4, 4, 4, 4, 4, 4,			/* 10 .. 17 */
+	4, 4, 4, 4, 4, 4, 4, 4,			/* 18 .. 1f */
+	5, 5, 5, 5, 5, 5, 5, 5,			/* 20 .. 27 */
+	5, 5, 5, 5, 5, 5, 5, 5,			/* 28 .. 2f */
+	5, 5, 5, 5, 5, 5, 5, 5,			/* 30 .. 37 */
+	5, 5, 5, 5, 5, 5, 5, 5,			/* 38 .. 3f */
+	6, 6, 6, 6, 6, 6, 6, 6,			/* 40 .. 47 */
+	6, 6, 6, 6, 6, 6, 6, 6,			/* 48 .. 4f */
+	6, 6, 6, 6, 6, 6, 6, 6,			/* 50 .. 57 */
+	6, 6, 6, 6, 6, 6, 6, 6,			/* 58 .. 5f */
+	6, 6, 6, 6, 6, 6, 6, 6,			/* 60 .. 67 */
+	6, 6, 6, 6, 6, 6, 6, 6,			/* 68 .. 6f */
+	6, 6, 6, 6, 6, 6, 6, 6,			/* 70 .. 77 */
+	6, 6, 6, 6, 6, 6, 6, 6,			/* 78 .. 7f */
+	7, 7, 7, 7, 7, 7, 7, 7,			/* 80 .. 87 */
+	7, 7, 7, 7, 7, 7, 7, 7,			/* 88 .. 8f */
+	7, 7, 7, 7, 7, 7, 7, 7,			/* 90 .. 97 */
+	7, 7, 7, 7, 7, 7, 7, 7,			/* 98 .. 9f */
+	7, 7, 7, 7, 7, 7, 7, 7,			/* a0 .. a7 */
+	7, 7, 7, 7, 7, 7, 7, 7,			/* a8 .. af */
+	7, 7, 7, 7, 7, 7, 7, 7,			/* b0 .. b7 */
+	7, 7, 7, 7, 7, 7, 7, 7,			/* b8 .. bf */
+	7, 7, 7, 7, 7, 7, 7, 7,			/* c0 .. c7 */
+	7, 7, 7, 7, 7, 7, 7, 7,			/* c8 .. cf */
+	7, 7, 7, 7, 7, 7, 7, 7,			/* d0 .. d7 */
+	7, 7, 7, 7, 7, 7, 7, 7,			/* d8 .. df */
+	7, 7, 7, 7, 7, 7, 7, 7,			/* e0 .. e7 */
+	7, 7, 7, 7, 7, 7, 7, 7,			/* e8 .. ef */
+	7, 7, 7, 7, 7, 7, 7, 7,			/* f0 .. f7 */
+	7, 7, 7, 7, 7, 7, 7, 7,			/* f8 .. ff */
+};
+#endif
+
+/*
+ * Count of bits set in byte, 0..8.
+ */
+static const char xfs_countbit[256] = {
+	0, 1, 1, 2, 1, 2, 2, 3,			/* 00 .. 07 */
+	1, 2, 2, 3, 2, 3, 3, 4,			/* 08 .. 0f */
+	1, 2, 2, 3, 2, 3, 3, 4,			/* 10 .. 17 */
+	2, 3, 3, 4, 3, 4, 4, 5,			/* 18 .. 1f */
+	1, 2, 2, 3, 2, 3, 3, 4,			/* 20 .. 27 */
+	2, 3, 3, 4, 3, 4, 4, 5,			/* 28 .. 2f */
+	2, 3, 3, 4, 3, 4, 4, 5,			/* 30 .. 37 */
+	3, 4, 4, 5, 4, 5, 5, 6,			/* 38 .. 3f */
+	1, 2, 2, 3, 2, 3, 3, 4,			/* 40 .. 47 */
+	2, 3, 3, 4, 3, 4, 4, 5,			/* 48 .. 4f */
+	2, 3, 3, 4, 3, 4, 4, 5,			/* 50 .. 57 */
+	3, 4, 4, 5, 4, 5, 5, 6,			/* 58 .. 5f */
+	2, 3, 3, 4, 3, 4, 4, 5,			/* 60 .. 67 */
+	3, 4, 4, 5, 4, 5, 5, 6,			/* 68 .. 6f */
+	3, 4, 4, 5, 4, 5, 5, 6,			/* 70 .. 77 */
+	4, 5, 5, 6, 5, 6, 6, 7,			/* 78 .. 7f */
+	1, 2, 2, 3, 2, 3, 3, 4,			/* 80 .. 87 */
+	2, 3, 3, 4, 3, 4, 4, 5,			/* 88 .. 8f */
+	2, 3, 3, 4, 3, 4, 4, 5,			/* 90 .. 97 */
+	3, 4, 4, 5, 4, 5, 5, 6,			/* 98 .. 9f */
+	2, 3, 3, 4, 3, 4, 4, 5,			/* a0 .. a7 */
+	3, 4, 4, 5, 4, 5, 5, 6,			/* a8 .. af */
+	3, 4, 4, 5, 4, 5, 5, 6,			/* b0 .. b7 */
+	4, 5, 5, 6, 5, 6, 6, 7,			/* b8 .. bf */
+	2, 3, 3, 4, 3, 4, 4, 5,			/* c0 .. c7 */
+	3, 4, 4, 5, 4, 5, 5, 6,			/* c8 .. cf */
+	3, 4, 4, 5, 4, 5, 5, 6,			/* d0 .. d7 */
+	4, 5, 5, 6, 5, 6, 6, 7,			/* d8 .. df */
+	3, 4, 4, 5, 4, 5, 5, 6,			/* e0 .. e7 */
+	4, 5, 5, 6, 5, 6, 6, 7,			/* e8 .. ef */
+	4, 5, 5, 6, 5, 6, 6, 7,			/* f0 .. f7 */
+	5, 6, 6, 7, 6, 7, 7, 8,			/* f8 .. ff */
+};
+
+/*
+ * xfs_highbit32: get high bit set out of 32-bit argument, -1 if none set.
+ */
+inline int
+xfs_highbit32(
+	__uint32_t	v)
+{
+#ifdef HAVE_ARCH_HIGHBIT
+	return highbit32(v);
+#else
+	int		i;
+
+	if (v & 0xffff0000)
+		if (v & 0xff000000)
+			i = 24;
+		else
+			i = 16;
+	else if (v & 0x0000ffff)
+		if (v & 0x0000ff00)
+			i = 8;
+		else
+			i = 0;
+	else
+		return -1;
+	return i + xfs_highbit[(v >> i) & 0xff];
+#endif
+}
+
+/*
+ * xfs_lowbit64: get low bit set out of 64-bit argument, -1 if none set.
+ */
+int
+xfs_lowbit64(
+	__uint64_t	v)
+{
+	__uint32_t	w = (__uint32_t)v;
+	int		n = 0;
+
+	if (w) {	/* lower bits */
+		n = ffs(w);
+	} else {	/* upper bits */
+		w = (__uint32_t)(v >> 32);
+		if (w && (n = ffs(w)))
+			n += 32;
+	}
+	return n - 1;
+}
+
+/*
+ * xfs_highbit64: get high bit set out of 64-bit argument, -1 if none set.
+ */
+int
+xfs_highbit64(
+	__uint64_t	v)
+{
+	__uint32_t	h = (__uint32_t)(v >> 32);
+
+	if (h)
+		return xfs_highbit32(h) + 32;
+	return xfs_highbit32((__uint32_t)v);
+}
+
+
+/*
+ * Count the number of bits set in the bitmap starting with bit
+ * start_bit.  Size is the size of the bitmap in words.
+ *
+ * Do the counting by mapping a byte value to the number of set
+ * bits for that value using the xfs_countbit array, i.e.
+ * xfs_countbit[0] == 0, xfs_countbit[1] == 1, xfs_countbit[2] == 1,
+ * xfs_countbit[3] == 2, etc.
+ */
+int
+xfs_count_bits(uint *map, uint size, uint start_bit)
+{
+	register int	bits;
+	register unsigned char	*bytep;
+	register unsigned char	*end_map;
+	int		byte_bit;
+
+	bits = 0;
+	end_map = (char*)(map + size);
+	bytep = (char*)(map + (start_bit & ~0x7));
+	byte_bit = start_bit & 0x7;
+
+	/*
+	 * If the caller fell off the end of the map, return 0.
+	 */
+	if (bytep >= end_map) {
+		return (0);
+	}
+
+	/*
+	 * If start_bit is not byte aligned, then process the
+	 * first byte separately.
+	 */
+	if (byte_bit != 0) {
+		/*
+		 * Shift off the bits we don't want to look at,
+		 * before indexing into xfs_countbit.
+		 */
+		bits += xfs_countbit[(*bytep >> byte_bit)];
+		bytep++;
+	}
+
+	/*
+	 * Count the bits in each byte until the end of the bitmap.
+	 */
+	while (bytep < end_map) {
+		bits += xfs_countbit[*bytep];
+		bytep++;
+	}
+
+	return (bits);
+}
+
+/*
+ * Count the number of contiguous bits set in the bitmap starting with bit
+ * start_bit.  Size is the size of the bitmap in words.
+ */
+int
+xfs_contig_bits(uint *map, uint	size, uint start_bit)
+{
+	uint * p = ((unsigned int *) map) + (start_bit >> BIT_TO_WORD_SHIFT);
+	uint result = 0;
+	uint tmp;
+
+	size <<= BIT_TO_WORD_SHIFT;
+
+	ASSERT(start_bit < size);
+	size -= start_bit & ~(NBWORD - 1);
+	start_bit &= (NBWORD - 1);
+	if (start_bit) {
+		tmp = *p++;
+		/* set to one first offset bits prior to start */
+		tmp |= (~0U >> (NBWORD-start_bit));
+		if (tmp != ~0U)
+			goto found;
+		result += NBWORD;
+		size -= NBWORD;
+	}
+	while (size) {
+		if ((tmp = *p++) != ~0U)
+			goto found;
+		result += NBWORD;
+		size -= NBWORD;
+	}
+	return result - start_bit;
+found:
+	return result + ffz(tmp) - start_bit;
+}
+
+/*
+ * This takes the bit number to start looking from and
+ * returns the next set bit from there.  It returns -1
+ * if there are no more bits set or the start bit is
+ * beyond the end of the bitmap.
+ *
+ * Size is the number of words, not bytes, in the bitmap.
+ */
+int xfs_next_bit(uint *map, uint size, uint start_bit)
+{
+	uint * p = ((unsigned int *) map) + (start_bit >> BIT_TO_WORD_SHIFT);
+	uint result = start_bit & ~(NBWORD - 1);
+	uint tmp;
+
+	size <<= BIT_TO_WORD_SHIFT;
+
+	if (start_bit >= size)
+		return -1;
+	size -= result;
+	start_bit &= (NBWORD - 1);
+	if (start_bit) {
+		tmp = *p++;
+		/* set to zero first offset bits prior to start */
+		tmp &= (~0U << start_bit);
+		if (tmp != 0U)
+			goto found;
+		result += NBWORD;
+		size -= NBWORD;
+	}
+	while (size) {
+		if ((tmp = *p++) != 0U)
+			goto found;
+		result += NBWORD;
+		size -= NBWORD;
+	}
+	return -1;
+found:
+	return result + ffs(tmp) - 1;
+}
diff --git a/fs/xfs/xfs_bit.h b/fs/xfs/xfs_bit.h
new file mode 100644
index 00000000000000..1e7f57ddf7a864
--- /dev/null
+++ b/fs/xfs/xfs_bit.h
@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2000, 2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_BIT_H__
+#define	__XFS_BIT_H__
+
+/*
+ * XFS bit manipulation routines.
+ */
+
+/*
+ * masks with n high/low bits set, 32-bit values & 64-bit values
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_MASK32HI)
+__uint32_t xfs_mask32hi(int n);
+#define	XFS_MASK32HI(n)		xfs_mask32hi(n)
+#else
+#define	XFS_MASK32HI(n)		((__uint32_t)-1 << (32 - (n)))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_MASK64HI)
+__uint64_t xfs_mask64hi(int n);
+#define	XFS_MASK64HI(n)		xfs_mask64hi(n)
+#else
+#define	XFS_MASK64HI(n)		((__uint64_t)-1 << (64 - (n)))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_MASK32LO)
+__uint32_t xfs_mask32lo(int n);
+#define	XFS_MASK32LO(n)		xfs_mask32lo(n)
+#else
+#define	XFS_MASK32LO(n)		(((__uint32_t)1 << (n)) - 1)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_MASK64LO)
+__uint64_t xfs_mask64lo(int n);
+#define	XFS_MASK64LO(n)		xfs_mask64lo(n)
+#else
+#define	XFS_MASK64LO(n)		(((__uint64_t)1 << (n)) - 1)
+#endif
+
+/* Get high bit set out of 32-bit argument, -1 if none set */
+extern int xfs_highbit32(__uint32_t v);
+
+/* Get low bit set out of 64-bit argument, -1 if none set */
+extern int xfs_lowbit64(__uint64_t v);
+
+/* Get high bit set out of 64-bit argument, -1 if none set */
+extern int xfs_highbit64(__uint64_t);
+
+/* Count set bits in map starting with start_bit */
+extern int xfs_count_bits(uint *map, uint size, uint start_bit);
+
+/* Count continuous one bits in map starting with start_bit */
+extern int xfs_contig_bits(uint *map, uint size, uint start_bit);
+
+/* Find next set bit in map */
+extern int xfs_next_bit(uint *map, uint size, uint start_bit);
+
+#endif	/* __XFS_BIT_H__ */
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
new file mode 100644
index 00000000000000..4b0738238809c4
--- /dev/null
+++ b/fs/xfs/xfs_bmap.c
@@ -0,0 +1,6246 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode_item.h"
+#include "xfs_inode.h"
+#include "xfs_itable.h"
+#include "xfs_extfree_item.h"
+#include "xfs_alloc.h"
+#include "xfs_bmap.h"
+#include "xfs_rtalloc.h"
+#include "xfs_error.h"
+#include "xfs_da_btree.h"
+#include "xfs_dir_leaf.h"
+#include "xfs_bit.h"
+#include "xfs_rw.h"
+#include "xfs_quota.h"
+#include "xfs_trans_space.h"
+#include "xfs_buf_item.h"
+
+
+#ifdef DEBUG
+STATIC void
+xfs_bmap_check_leaf_extents(xfs_btree_cur_t *cur, xfs_inode_t *ip, int whichfork);
+#endif
+
+kmem_zone_t		*xfs_bmap_free_item_zone;
+
+/*
+ * Prototypes for internal bmap routines.
+ */
+
+
+/*
+ * Called from xfs_bmap_add_attrfork to handle extents format files.
+ */
+STATIC int					/* error */
+xfs_bmap_add_attrfork_extents(
+	xfs_trans_t		*tp,		/* transaction pointer */
+	xfs_inode_t		*ip,		/* incore inode pointer */
+	xfs_fsblock_t		*firstblock,	/* first block allocated */
+	xfs_bmap_free_t		*flist,		/* blocks to free at commit */
+	int			*flags);	/* inode logging flags */
+
+/*
+ * Called from xfs_bmap_add_attrfork to handle local format files.
+ */
+STATIC int					/* error */
+xfs_bmap_add_attrfork_local(
+	xfs_trans_t		*tp,		/* transaction pointer */
+	xfs_inode_t		*ip,		/* incore inode pointer */
+	xfs_fsblock_t		*firstblock,	/* first block allocated */
+	xfs_bmap_free_t		*flist,		/* blocks to free at commit */
+	int			*flags);	/* inode logging flags */
+
+/*
+ * Called by xfs_bmapi to update extent list structure and the btree
+ * after allocating space (or doing a delayed allocation).
+ */
+STATIC int				/* error */
+xfs_bmap_add_extent(
+	xfs_inode_t		*ip,	/* incore inode pointer */
+	xfs_extnum_t		idx,	/* extent number to update/insert */
+	xfs_btree_cur_t		**curp,	/* if *curp is null, not a btree */
+	xfs_bmbt_irec_t		*new,	/* new data to put in extent list */
+	xfs_fsblock_t		*first,	/* pointer to firstblock variable */
+	xfs_bmap_free_t		*flist,	/* list of extents to be freed */
+	int			*logflagsp, /* inode logging flags */
+	int			whichfork, /* data or attr fork */
+	int			rsvd);	/* OK to allocate reserved blocks */
+
+/*
+ * Called by xfs_bmap_add_extent to handle cases converting a delayed
+ * allocation to a real allocation.
+ */
+STATIC int				/* error */
+xfs_bmap_add_extent_delay_real(
+	xfs_inode_t		*ip,	/* incore inode pointer */
+	xfs_extnum_t		idx,	/* extent number to update/insert */
+	xfs_btree_cur_t		**curp,	/* if *curp is null, not a btree */
+	xfs_bmbt_irec_t		*new,	/* new data to put in extent list */
+	xfs_filblks_t		*dnew,	/* new delayed-alloc indirect blocks */
+	xfs_fsblock_t		*first,	/* pointer to firstblock variable */
+	xfs_bmap_free_t		*flist,	/* list of extents to be freed */
+	int			*logflagsp, /* inode logging flags */
+	int			rsvd);	/* OK to allocate reserved blocks */
+
+/*
+ * Called by xfs_bmap_add_extent to handle cases converting a hole
+ * to a delayed allocation.
+ */
+STATIC int				/* error */
+xfs_bmap_add_extent_hole_delay(
+	xfs_inode_t		*ip,	/* incore inode pointer */
+	xfs_extnum_t		idx,	/* extent number to update/insert */
+	xfs_btree_cur_t		*cur,	/* if null, not a btree */
+	xfs_bmbt_irec_t		*new,	/* new data to put in extent list */
+	int			*logflagsp,/* inode logging flags */
+	int			rsvd);	/* OK to allocate reserved blocks */
+
+/*
+ * Called by xfs_bmap_add_extent to handle cases converting a hole
+ * to a real allocation.
+ */
+STATIC int				/* error */
+xfs_bmap_add_extent_hole_real(
+	xfs_inode_t		*ip,	/* incore inode pointer */
+	xfs_extnum_t		idx,	/* extent number to update/insert */
+	xfs_btree_cur_t		*cur,	/* if null, not a btree */
+	xfs_bmbt_irec_t		*new,	/* new data to put in extent list */
+	int			*logflagsp, /* inode logging flags */
+	int			whichfork); /* data or attr fork */
+
+/*
+ * Called by xfs_bmap_add_extent to handle cases converting an unwritten
+ * allocation to a real allocation or vice versa.
+ */
+STATIC int				/* error */
+xfs_bmap_add_extent_unwritten_real(
+	xfs_inode_t		*ip,	/* incore inode pointer */
+	xfs_extnum_t		idx,	/* extent number to update/insert */
+	xfs_btree_cur_t		**curp,	/* if *curp is null, not a btree */
+	xfs_bmbt_irec_t		*new,	/* new data to put in extent list */
+	int			*logflagsp); /* inode logging flags */
+
+/*
+ * xfs_bmap_alloc is called by xfs_bmapi to allocate an extent for a file.
+ * It figures out where to ask the underlying allocator to put the new extent.
+ */
+STATIC int				/* error */
+xfs_bmap_alloc(
+	xfs_bmalloca_t		*ap);	/* bmap alloc argument struct */
+
+/*
+ * Transform a btree format file with only one leaf node, where the
+ * extents list will fit in the inode, into an extents format file.
+ * Since the extent list is already in-core, all we have to do is
+ * give up the space for the btree root and pitch the leaf block.
+ */
+STATIC int				/* error */
+xfs_bmap_btree_to_extents(
+	xfs_trans_t		*tp,	/* transaction pointer */
+	xfs_inode_t		*ip,	/* incore inode pointer */
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			*logflagsp, /* inode logging flags */
+	int			whichfork); /* data or attr fork */
+
+#ifdef DEBUG
+/*
+ * Check that the extents list for the inode ip is in the right order.
+ */
+STATIC void
+xfs_bmap_check_extents(
+	xfs_inode_t		*ip,		/* incore inode pointer */
+	int			whichfork);	/* data or attr fork */
+#endif
+
+/*
+ * Called by xfs_bmapi to update extent list structure and the btree
+ * after removing space (or undoing a delayed allocation).
+ */
+STATIC int				/* error */
+xfs_bmap_del_extent(
+	xfs_inode_t		*ip,	/* incore inode pointer */
+	xfs_trans_t		*tp,	/* current trans pointer */
+	xfs_extnum_t		idx,	/* extent number to update/insert */
+	xfs_bmap_free_t		*flist,	/* list of extents to be freed */
+	xfs_btree_cur_t		*cur,	/* if null, not a btree */
+	xfs_bmbt_irec_t		*new,	/* new data to put in extent list */
+	int			*logflagsp,/* inode logging flags */
+	int			whichfork, /* data or attr fork */
+	int			rsvd);	 /* OK to allocate reserved blocks */
+
+/*
+ * Remove the entry "free" from the free item list.  Prev points to the
+ * previous entry, unless "free" is the head of the list.
+ */
+STATIC void
+xfs_bmap_del_free(
+	xfs_bmap_free_t		*flist,	/* free item list header */
+	xfs_bmap_free_item_t	*prev,	/* previous item on list, if any */
+	xfs_bmap_free_item_t	*free);	/* list item to be freed */
+
+/*
+ * Remove count entries from the extents array for inode "ip", starting
+ * at index "idx".  Copies the remaining items down over the deleted ones,
+ * and gives back the excess memory.
+ */
+STATIC void
+xfs_bmap_delete_exlist(
+	xfs_inode_t	*ip,		/* incode inode pointer */
+	xfs_extnum_t	idx,		/* starting delete index */
+	xfs_extnum_t	count,		/* count of items to delete */
+	int		whichfork);	/* data or attr fork */
+
+/*
+ * Convert an extents-format file into a btree-format file.
+ * The new file will have a root block (in the inode) and a single child block.
+ */
+STATIC int					/* error */
+xfs_bmap_extents_to_btree(
+	xfs_trans_t		*tp,		/* transaction pointer */
+	xfs_inode_t		*ip,		/* incore inode pointer */
+	xfs_fsblock_t		*firstblock,	/* first-block-allocated */
+	xfs_bmap_free_t		*flist,		/* blocks freed in xaction */
+	xfs_btree_cur_t		**curp,		/* cursor returned to caller */
+	int			wasdel,		/* converting a delayed alloc */
+	int			*logflagsp,	/* inode logging flags */
+	int			whichfork);	/* data or attr fork */
+
+/*
+ * Insert new item(s) in the extent list for inode "ip".
+ * Count new items are inserted at offset idx.
+ */
+STATIC void
+xfs_bmap_insert_exlist(
+	xfs_inode_t	*ip,		/* incore inode pointer */
+	xfs_extnum_t	idx,		/* starting index of new items */
+	xfs_extnum_t	count,		/* number of inserted items */
+	xfs_bmbt_irec_t	*new,		/* items to insert */
+	int		whichfork);	/* data or attr fork */
+
+/*
+ * Convert a local file to an extents file.
+ * This code is sort of bogus, since the file data needs to get
+ * logged so it won't be lost.  The bmap-level manipulations are ok, though.
+ */
+STATIC int				/* error */
+xfs_bmap_local_to_extents(
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_inode_t	*ip,		/* incore inode pointer */
+	xfs_fsblock_t	*firstblock,	/* first block allocated in xaction */
+	xfs_extlen_t	total,		/* total blocks needed by transaction */
+	int		*logflagsp,	/* inode logging flags */
+	int		whichfork);	/* data or attr fork */
+
+/*
+ * Search the extents list for the inode, for the extent containing bno.
+ * If bno lies in a hole, point to the next entry.  If bno lies past eof,
+ * *eofp will be set, and *prevp will contain the last entry (null if none).
+ * Else, *lastxp will be set to the index of the found
+ * entry; *gotp will contain the entry.
+ */
+STATIC xfs_bmbt_rec_t *			/* pointer to found extent entry */
+xfs_bmap_search_extents(
+	xfs_inode_t	*ip,		/* incore inode pointer */
+	xfs_fileoff_t	bno,		/* block number searched for */
+	int		whichfork,	/* data or attr fork */
+	int		*eofp,		/* out: end of file found */
+	xfs_extnum_t	*lastxp,	/* out: last extent index */
+	xfs_bmbt_irec_t	*gotp,		/* out: extent entry found */
+	xfs_bmbt_irec_t	*prevp);	/* out: previous extent entry found */
+
+#ifdef XFS_BMAP_TRACE
+/*
+ * Add a bmap trace buffer entry.  Base routine for the others.
+ */
+STATIC void
+xfs_bmap_trace_addentry(
+	int		opcode,		/* operation */
+	char		*fname,		/* function name */
+	char		*desc,		/* operation description */
+	xfs_inode_t	*ip,		/* incore inode pointer */
+	xfs_extnum_t	idx,		/* index of entry(ies) */
+	xfs_extnum_t	cnt,		/* count of entries, 1 or 2 */
+	xfs_bmbt_rec_t	*r1,		/* first record */
+	xfs_bmbt_rec_t	*r2,		/* second record or null */
+	int		whichfork);	/* data or attr fork */
+
+/*
+ * Add bmap trace entry prior to a call to xfs_bmap_delete_exlist.
+ */
+STATIC void
+xfs_bmap_trace_delete(
+	char		*fname,		/* function name */
+	char		*desc,		/* operation description */
+	xfs_inode_t	*ip,		/* incore inode pointer */
+	xfs_extnum_t	idx,		/* index of entry(entries) deleted */
+	xfs_extnum_t	cnt,		/* count of entries deleted, 1 or 2 */
+	int		whichfork);	/* data or attr fork */
+
+/*
+ * Add bmap trace entry prior to a call to xfs_bmap_insert_exlist, or
+ * reading in the extents list from the disk (in the btree).
+ */
+STATIC void
+xfs_bmap_trace_insert(
+	char		*fname,		/* function name */
+	char		*desc,		/* operation description */
+	xfs_inode_t	*ip,		/* incore inode pointer */
+	xfs_extnum_t	idx,		/* index of entry(entries) inserted */
+	xfs_extnum_t	cnt,		/* count of entries inserted, 1 or 2 */
+	xfs_bmbt_irec_t	*r1,		/* inserted record 1 */
+	xfs_bmbt_irec_t	*r2,		/* inserted record 2 or null */
+	int		whichfork);	/* data or attr fork */
+
+/*
+ * Add bmap trace entry after updating an extent list entry in place.
+ */
+STATIC void
+xfs_bmap_trace_post_update(
+	char		*fname,		/* function name */
+	char		*desc,		/* operation description */
+	xfs_inode_t	*ip,		/* incore inode pointer */
+	xfs_extnum_t	idx,		/* index of entry updated */
+	int		whichfork);	/* data or attr fork */
+
+/*
+ * Add bmap trace entry prior to updating an extent list entry in place.
+ */
+STATIC void
+xfs_bmap_trace_pre_update(
+	char		*fname,		/* function name */
+	char		*desc,		/* operation description */
+	xfs_inode_t	*ip,		/* incore inode pointer */
+	xfs_extnum_t	idx,		/* index of entry to be updated */
+	int		whichfork);	/* data or attr fork */
+
+#else
+#define	xfs_bmap_trace_delete(f,d,ip,i,c,w)
+#define	xfs_bmap_trace_insert(f,d,ip,i,c,r1,r2,w)
+#define	xfs_bmap_trace_post_update(f,d,ip,i,w)
+#define	xfs_bmap_trace_pre_update(f,d,ip,i,w)
+#endif	/* XFS_BMAP_TRACE */
+
+/*
+ * Compute the worst-case number of indirect blocks that will be used
+ * for ip's delayed extent of length "len".
+ */
+STATIC xfs_filblks_t
+xfs_bmap_worst_indlen(
+	xfs_inode_t		*ip,	/* incore inode pointer */
+	xfs_filblks_t		len);	/* delayed extent length */
+
+#ifdef DEBUG
+/*
+ * Perform various validation checks on the values being returned
+ * from xfs_bmapi().
+ */
+STATIC void
+xfs_bmap_validate_ret(
+	xfs_fileoff_t		bno,
+	xfs_filblks_t		len,
+	int			flags,
+	xfs_bmbt_irec_t		*mval,
+	int			nmap,
+	int			ret_nmap);
+#else
+#define	xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap)
+#endif /* DEBUG */
+
+#if defined(XFS_RW_TRACE)
+STATIC void
+xfs_bunmap_trace(
+	xfs_inode_t		*ip,
+	xfs_fileoff_t		bno,
+	xfs_filblks_t		len,
+	int			flags,
+	inst_t			*ra);
+#else
+#define	xfs_bunmap_trace(ip, bno, len, flags, ra)
+#endif	/* XFS_RW_TRACE */
+
+STATIC int
+xfs_bmap_count_tree(
+	xfs_mount_t     *mp,
+	xfs_trans_t     *tp,
+	xfs_fsblock_t   blockno,
+	int             levelin,
+	int		*count);
+
+STATIC int
+xfs_bmap_count_leaves(
+	xfs_bmbt_rec_t		*frp,
+	int			numrecs,
+	int			*count);
+
+/*
+ * Bmap internal routines.
+ */
+
+/*
+ * Called from xfs_bmap_add_attrfork to handle btree format files.
+ */
+STATIC int					/* error */
+xfs_bmap_add_attrfork_btree(
+	xfs_trans_t		*tp,		/* transaction pointer */
+	xfs_inode_t		*ip,		/* incore inode pointer */
+	xfs_fsblock_t		*firstblock,	/* first block allocated */
+	xfs_bmap_free_t		*flist,		/* blocks to free at commit */
+	int			*flags)		/* inode logging flags */
+{
+	xfs_btree_cur_t		*cur;		/* btree cursor */
+	int			error;		/* error return value */
+	xfs_mount_t		*mp;		/* file system mount struct */
+	int			stat;		/* newroot status */
+
+	mp = ip->i_mount;
+	if (ip->i_df.if_broot_bytes <= XFS_IFORK_DSIZE(ip))
+		*flags |= XFS_ILOG_DBROOT;
+	else {
+		cur = xfs_btree_init_cursor(mp, tp, NULL, 0, XFS_BTNUM_BMAP, ip,
+			XFS_DATA_FORK);
+		cur->bc_private.b.flist = flist;
+		cur->bc_private.b.firstblock = *firstblock;
+		if ((error = xfs_bmbt_lookup_ge(cur, 0, 0, 0, &stat)))
+			goto error0;
+		ASSERT(stat == 1);	/* must be at least one entry */
+		if ((error = xfs_bmbt_newroot(cur, flags, &stat)))
+			goto error0;
+		if (stat == 0) {
+			xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR);
+			return XFS_ERROR(ENOSPC);
+		}
+		*firstblock = cur->bc_private.b.firstblock;
+		cur->bc_private.b.allocated = 0;
+		xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR);
+	}
+	return 0;
+error0:
+	xfs_btree_del_cursor(cur, XFS_BTREE_ERROR);
+	return error;
+}
+
+/*
+ * Called from xfs_bmap_add_attrfork to handle extents format files.
+ */
+STATIC int					/* error */
+xfs_bmap_add_attrfork_extents(
+	xfs_trans_t		*tp,		/* transaction pointer */
+	xfs_inode_t		*ip,		/* incore inode pointer */
+	xfs_fsblock_t		*firstblock,	/* first block allocated */
+	xfs_bmap_free_t		*flist,		/* blocks to free at commit */
+	int			*flags)		/* inode logging flags */
+{
+	xfs_btree_cur_t		*cur;		/* bmap btree cursor */
+	int			error;		/* error return value */
+
+	if (ip->i_d.di_nextents * sizeof(xfs_bmbt_rec_t) <= XFS_IFORK_DSIZE(ip))
+		return 0;
+	cur = NULL;
+	error = xfs_bmap_extents_to_btree(tp, ip, firstblock, flist, &cur, 0,
+		flags, XFS_DATA_FORK);
+	if (cur) {
+		cur->bc_private.b.allocated = 0;
+		xfs_btree_del_cursor(cur,
+			error ? XFS_BTREE_ERROR : XFS_BTREE_NOERROR);
+	}
+	return error;
+}
+
+/*
+ * Called from xfs_bmap_add_attrfork to handle local format files.
+ */
+STATIC int					/* error */
+xfs_bmap_add_attrfork_local(
+	xfs_trans_t		*tp,		/* transaction pointer */
+	xfs_inode_t		*ip,		/* incore inode pointer */
+	xfs_fsblock_t		*firstblock,	/* first block allocated */
+	xfs_bmap_free_t		*flist,		/* blocks to free at commit */
+	int			*flags)		/* inode logging flags */
+{
+	xfs_da_args_t		dargs;		/* args for dir/attr code */
+	int			error;		/* error return value */
+	xfs_mount_t		*mp;		/* mount structure pointer */
+
+	if (ip->i_df.if_bytes <= XFS_IFORK_DSIZE(ip))
+		return 0;
+	if ((ip->i_d.di_mode & S_IFMT) == S_IFDIR) {
+		mp = ip->i_mount;
+		memset(&dargs, 0, sizeof(dargs));
+		dargs.dp = ip;
+		dargs.firstblock = firstblock;
+		dargs.flist = flist;
+		dargs.total = mp->m_dirblkfsbs;
+		dargs.whichfork = XFS_DATA_FORK;
+		dargs.trans = tp;
+		error = XFS_DIR_SHORTFORM_TO_SINGLE(mp, &dargs);
+	} else
+		error = xfs_bmap_local_to_extents(tp, ip, firstblock, 1, flags,
+			XFS_DATA_FORK);
+	return error;
+}
+
+/*
+ * Called by xfs_bmapi to update extent list structure and the btree
+ * after allocating space (or doing a delayed allocation).
+ */
+STATIC int				/* error */
+xfs_bmap_add_extent(
+	xfs_inode_t		*ip,	/* incore inode pointer */
+	xfs_extnum_t		idx,	/* extent number to update/insert */
+	xfs_btree_cur_t		**curp,	/* if *curp is null, not a btree */
+	xfs_bmbt_irec_t		*new,	/* new data to put in extent list */
+	xfs_fsblock_t		*first,	/* pointer to firstblock variable */
+	xfs_bmap_free_t		*flist,	/* list of extents to be freed */
+	int			*logflagsp, /* inode logging flags */
+	int			whichfork, /* data or attr fork */
+	int			rsvd)	/* OK to use reserved data blocks */
+{
+	xfs_btree_cur_t		*cur;	/* btree cursor or null */
+	xfs_filblks_t		da_new; /* new count del alloc blocks used */
+	xfs_filblks_t		da_old; /* old count del alloc blocks used */
+	int			error;	/* error return value */
+#ifdef XFS_BMAP_TRACE
+	static char		fname[] = "xfs_bmap_add_extent";
+#endif
+	xfs_ifork_t		*ifp;	/* inode fork ptr */
+	int			logflags; /* returned value */
+	xfs_extnum_t		nextents; /* number of extents in file now */
+
+	XFS_STATS_INC(xs_add_exlist);
+	cur = *curp;
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+	ASSERT(idx <= nextents);
+	da_old = da_new = 0;
+	error = 0;
+	/*
+	 * This is the first extent added to a new/empty file.
+	 * Special case this one, so other routines get to assume there are
+	 * already extents in the list.
+	 */
+	if (nextents == 0) {
+		xfs_bmap_trace_insert(fname, "insert empty", ip, 0, 1, new,
+			NULL, whichfork);
+		xfs_bmap_insert_exlist(ip, 0, 1, new, whichfork);
+		ASSERT(cur == NULL);
+		ifp->if_lastex = 0;
+		if (!ISNULLSTARTBLOCK(new->br_startblock)) {
+			XFS_IFORK_NEXT_SET(ip, whichfork, 1);
+			logflags = XFS_ILOG_CORE | XFS_ILOG_FEXT(whichfork);
+		} else
+			logflags = 0;
+	}
+	/*
+	 * Any kind of new delayed allocation goes here.
+	 */
+	else if (ISNULLSTARTBLOCK(new->br_startblock)) {
+		if (cur)
+			ASSERT((cur->bc_private.b.flags &
+				XFS_BTCUR_BPRV_WASDEL) == 0);
+		if ((error = xfs_bmap_add_extent_hole_delay(ip, idx, cur, new,
+				&logflags, rsvd)))
+			goto done;
+	}
+	/*
+	 * Real allocation off the end of the file.
+	 */
+	else if (idx == nextents) {
+		if (cur)
+			ASSERT((cur->bc_private.b.flags &
+				XFS_BTCUR_BPRV_WASDEL) == 0);
+		if ((error = xfs_bmap_add_extent_hole_real(ip, idx, cur, new,
+				&logflags, whichfork)))
+			goto done;
+	} else {
+		xfs_bmbt_irec_t	prev;	/* old extent at offset idx */
+
+		/*
+		 * Get the record referred to by idx.
+		 */
+		xfs_bmbt_get_all(&ifp->if_u1.if_extents[idx], &prev);
+		/*
+		 * If it's a real allocation record, and the new allocation ends
+		 * after the start of the referred to record, then we're filling
+		 * in a delayed or unwritten allocation with a real one, or
+		 * converting real back to unwritten.
+		 */
+		if (!ISNULLSTARTBLOCK(new->br_startblock) &&
+		    new->br_startoff + new->br_blockcount > prev.br_startoff) {
+			if (prev.br_state != XFS_EXT_UNWRITTEN &&
+			    ISNULLSTARTBLOCK(prev.br_startblock)) {
+				da_old = STARTBLOCKVAL(prev.br_startblock);
+				if (cur)
+					ASSERT(cur->bc_private.b.flags &
+						XFS_BTCUR_BPRV_WASDEL);
+				if ((error = xfs_bmap_add_extent_delay_real(ip,
+					idx, &cur, new, &da_new, first, flist,
+					&logflags, rsvd)))
+					goto done;
+			} else if (new->br_state == XFS_EXT_NORM) {
+				ASSERT(new->br_state == XFS_EXT_NORM);
+				if ((error = xfs_bmap_add_extent_unwritten_real(
+					ip, idx, &cur, new, &logflags)))
+					goto done;
+			} else {
+				ASSERT(new->br_state == XFS_EXT_UNWRITTEN);
+				if ((error = xfs_bmap_add_extent_unwritten_real(
+					ip, idx, &cur, new, &logflags)))
+					goto done;
+			}
+			ASSERT(*curp == cur || *curp == NULL);
+		}
+		/*
+		 * Otherwise we're filling in a hole with an allocation.
+		 */
+		else {
+			if (cur)
+				ASSERT((cur->bc_private.b.flags &
+					XFS_BTCUR_BPRV_WASDEL) == 0);
+			if ((error = xfs_bmap_add_extent_hole_real(ip, idx, cur,
+					new, &logflags, whichfork)))
+				goto done;
+		}
+	}
+
+	ASSERT(*curp == cur || *curp == NULL);
+	/*
+	 * Convert to a btree if necessary.
+	 */
+	if (XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_EXTENTS &&
+	    XFS_IFORK_NEXTENTS(ip, whichfork) > ifp->if_ext_max) {
+		int	tmp_logflags;	/* partial log flag return val */
+
+		ASSERT(cur == NULL);
+		error = xfs_bmap_extents_to_btree(ip->i_transp, ip, first,
+			flist, &cur, da_old > 0, &tmp_logflags, whichfork);
+		logflags |= tmp_logflags;
+		if (error)
+			goto done;
+	}
+	/*
+	 * Adjust for changes in reserved delayed indirect blocks.
+	 * Nothing to do for disk quotas here.
+	 */
+	if (da_old || da_new) {
+		xfs_filblks_t	nblks;
+
+		nblks = da_new;
+		if (cur)
+			nblks += cur->bc_private.b.allocated;
+		ASSERT(nblks <= da_old);
+		if (nblks < da_old)
+			xfs_mod_incore_sb(ip->i_mount, XFS_SBS_FDBLOCKS,
+				(int)(da_old - nblks), rsvd);
+	}
+	/*
+	 * Clear out the allocated field, done with it now in any case.
+	 */
+	if (cur) {
+		cur->bc_private.b.allocated = 0;
+		*curp = cur;
+	}
+done:
+#ifdef DEBUG
+	if (!error)
+		xfs_bmap_check_leaf_extents(*curp, ip, whichfork);
+#endif
+	*logflagsp = logflags;
+	return error;
+}
+
+/*
+ * Called by xfs_bmap_add_extent to handle cases converting a delayed
+ * allocation to a real allocation.
+ */
+STATIC int				/* error */
+xfs_bmap_add_extent_delay_real(
+	xfs_inode_t		*ip,	/* incore inode pointer */
+	xfs_extnum_t		idx,	/* extent number to update/insert */
+	xfs_btree_cur_t		**curp,	/* if *curp is null, not a btree */
+	xfs_bmbt_irec_t		*new,	/* new data to put in extent list */
+	xfs_filblks_t		*dnew,	/* new delayed-alloc indirect blocks */
+	xfs_fsblock_t		*first,	/* pointer to firstblock variable */
+	xfs_bmap_free_t		*flist,	/* list of extents to be freed */
+	int			*logflagsp, /* inode logging flags */
+	int			rsvd)	/* OK to use reserved data block allocation */
+{
+	xfs_bmbt_rec_t		*base;	/* base of extent entry list */
+	xfs_btree_cur_t		*cur;	/* btree cursor */
+	int			diff;	/* temp value */
+	xfs_bmbt_rec_t		*ep;	/* extent entry for idx */
+	int			error;	/* error return value */
+#ifdef XFS_BMAP_TRACE
+	static char		fname[] = "xfs_bmap_add_extent_delay_real";
+#endif
+	int			i;	/* temp state */
+	xfs_fileoff_t		new_endoff;	/* end offset of new entry */
+	xfs_bmbt_irec_t		r[3];	/* neighbor extent entries */
+					/* left is 0, right is 1, prev is 2 */
+	int			rval=0;	/* return value (logging flags) */
+	int			state = 0;/* state bits, accessed thru macros */
+	xfs_filblks_t		temp;	/* value for dnew calculations */
+	xfs_filblks_t		temp2;	/* value for dnew calculations */
+	int			tmp_rval;	/* partial logging flags */
+	enum {				/* bit number definitions for state */
+		LEFT_CONTIG,	RIGHT_CONTIG,
+		LEFT_FILLING,	RIGHT_FILLING,
+		LEFT_DELAY,	RIGHT_DELAY,
+		LEFT_VALID,	RIGHT_VALID
+	};
+
+#define	LEFT		r[0]
+#define	RIGHT		r[1]
+#define	PREV		r[2]
+#define	MASK(b)		(1 << (b))
+#define	MASK2(a,b)	(MASK(a) | MASK(b))
+#define	MASK3(a,b,c)	(MASK2(a,b) | MASK(c))
+#define	MASK4(a,b,c,d)	(MASK3(a,b,c) | MASK(d))
+#define	STATE_SET(b,v)	((v) ? (state |= MASK(b)) : (state &= ~MASK(b)))
+#define	STATE_TEST(b)	(state & MASK(b))
+#define	STATE_SET_TEST(b,v)	((v) ? ((state |= MASK(b)), 1) : \
+				       ((state &= ~MASK(b)), 0))
+#define	SWITCH_STATE		\
+	(state & MASK4(LEFT_FILLING, RIGHT_FILLING, LEFT_CONTIG, RIGHT_CONTIG))
+
+	/*
+	 * Set up a bunch of variables to make the tests simpler.
+	 */
+	cur = *curp;
+	base = ip->i_df.if_u1.if_extents;
+	ep = &base[idx];
+	xfs_bmbt_get_all(ep, &PREV);
+	new_endoff = new->br_startoff + new->br_blockcount;
+	ASSERT(PREV.br_startoff <= new->br_startoff);
+	ASSERT(PREV.br_startoff + PREV.br_blockcount >= new_endoff);
+	/*
+	 * Set flags determining what part of the previous delayed allocation
+	 * extent is being replaced by a real allocation.
+	 */
+	STATE_SET(LEFT_FILLING, PREV.br_startoff == new->br_startoff);
+	STATE_SET(RIGHT_FILLING,
+		PREV.br_startoff + PREV.br_blockcount == new_endoff);
+	/*
+	 * Check and set flags if this segment has a left neighbor.
+	 * Don't set contiguous if the combined extent would be too large.
+	 */
+	if (STATE_SET_TEST(LEFT_VALID, idx > 0)) {
+		xfs_bmbt_get_all(ep - 1, &LEFT);
+		STATE_SET(LEFT_DELAY, ISNULLSTARTBLOCK(LEFT.br_startblock));
+	}
+	STATE_SET(LEFT_CONTIG,
+		STATE_TEST(LEFT_VALID) && !STATE_TEST(LEFT_DELAY) &&
+		LEFT.br_startoff + LEFT.br_blockcount == new->br_startoff &&
+		LEFT.br_startblock + LEFT.br_blockcount == new->br_startblock &&
+		LEFT.br_state == new->br_state &&
+		LEFT.br_blockcount + new->br_blockcount <= MAXEXTLEN);
+	/*
+	 * Check and set flags if this segment has a right neighbor.
+	 * Don't set contiguous if the combined extent would be too large.
+	 * Also check for all-three-contiguous being too large.
+	 */
+	if (STATE_SET_TEST(RIGHT_VALID,
+			idx <
+			ip->i_df.if_bytes / (uint)sizeof(xfs_bmbt_rec_t) - 1)) {
+		xfs_bmbt_get_all(ep + 1, &RIGHT);
+		STATE_SET(RIGHT_DELAY, ISNULLSTARTBLOCK(RIGHT.br_startblock));
+	}
+	STATE_SET(RIGHT_CONTIG,
+		STATE_TEST(RIGHT_VALID) && !STATE_TEST(RIGHT_DELAY) &&
+		new_endoff == RIGHT.br_startoff &&
+		new->br_startblock + new->br_blockcount ==
+		    RIGHT.br_startblock &&
+		new->br_state == RIGHT.br_state &&
+		new->br_blockcount + RIGHT.br_blockcount <= MAXEXTLEN &&
+		((state & MASK3(LEFT_CONTIG, LEFT_FILLING, RIGHT_FILLING)) !=
+		  MASK3(LEFT_CONTIG, LEFT_FILLING, RIGHT_FILLING) ||
+		 LEFT.br_blockcount + new->br_blockcount + RIGHT.br_blockcount
+		     <= MAXEXTLEN));
+	error = 0;
+	/*
+	 * Switch out based on the FILLING and CONTIG state bits.
+	 */
+	switch (SWITCH_STATE) {
+
+	case MASK4(LEFT_FILLING, RIGHT_FILLING, LEFT_CONTIG, RIGHT_CONTIG):
+		/*
+		 * Filling in all of a previously delayed allocation extent.
+		 * The left and right neighbors are both contiguous with new.
+		 */
+		xfs_bmap_trace_pre_update(fname, "LF|RF|LC|RC", ip, idx - 1,
+			XFS_DATA_FORK);
+		xfs_bmbt_set_blockcount(ep - 1,
+			LEFT.br_blockcount + PREV.br_blockcount +
+			RIGHT.br_blockcount);
+		xfs_bmap_trace_post_update(fname, "LF|RF|LC|RC", ip, idx - 1,
+			XFS_DATA_FORK);
+		xfs_bmap_trace_delete(fname, "LF|RF|LC|RC", ip, idx, 2,
+			XFS_DATA_FORK);
+		xfs_bmap_delete_exlist(ip, idx, 2, XFS_DATA_FORK);
+		ip->i_df.if_lastex = idx - 1;
+		ip->i_d.di_nextents--;
+		if (cur == NULL)
+			rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
+		else {
+			rval = XFS_ILOG_CORE;
+			if ((error = xfs_bmbt_lookup_eq(cur, RIGHT.br_startoff,
+					RIGHT.br_startblock,
+					RIGHT.br_blockcount, &i)))
+				goto done;
+			ASSERT(i == 1);
+			if ((error = xfs_bmbt_delete(cur, &i)))
+				goto done;
+			ASSERT(i == 1);
+			if ((error = xfs_bmbt_decrement(cur, 0, &i)))
+				goto done;
+			ASSERT(i == 1);
+			if ((error = xfs_bmbt_update(cur, LEFT.br_startoff,
+					LEFT.br_startblock,
+					LEFT.br_blockcount +
+					PREV.br_blockcount +
+					RIGHT.br_blockcount, LEFT.br_state)))
+				goto done;
+		}
+		*dnew = 0;
+		break;
+
+	case MASK3(LEFT_FILLING, RIGHT_FILLING, LEFT_CONTIG):
+		/*
+		 * Filling in all of a previously delayed allocation extent.
+		 * The left neighbor is contiguous, the right is not.
+		 */
+		xfs_bmap_trace_pre_update(fname, "LF|RF|LC", ip, idx - 1,
+			XFS_DATA_FORK);
+		xfs_bmbt_set_blockcount(ep - 1,
+			LEFT.br_blockcount + PREV.br_blockcount);
+		xfs_bmap_trace_post_update(fname, "LF|RF|LC", ip, idx - 1,
+			XFS_DATA_FORK);
+		ip->i_df.if_lastex = idx - 1;
+		xfs_bmap_trace_delete(fname, "LF|RF|LC", ip, idx, 1,
+			XFS_DATA_FORK);
+		xfs_bmap_delete_exlist(ip, idx, 1, XFS_DATA_FORK);
+		if (cur == NULL)
+			rval = XFS_ILOG_DEXT;
+		else {
+			rval = 0;
+			if ((error = xfs_bmbt_lookup_eq(cur, LEFT.br_startoff,
+					LEFT.br_startblock, LEFT.br_blockcount,
+					&i)))
+				goto done;
+			ASSERT(i == 1);
+			if ((error = xfs_bmbt_update(cur, LEFT.br_startoff,
+					LEFT.br_startblock,
+					LEFT.br_blockcount +
+					PREV.br_blockcount, LEFT.br_state)))
+				goto done;
+		}
+		*dnew = 0;
+		break;
+
+	case MASK3(LEFT_FILLING, RIGHT_FILLING, RIGHT_CONTIG):
+		/*
+		 * Filling in all of a previously delayed allocation extent.
+		 * The right neighbor is contiguous, the left is not.
+		 */
+		xfs_bmap_trace_pre_update(fname, "LF|RF|RC", ip, idx,
+			XFS_DATA_FORK);
+		xfs_bmbt_set_startblock(ep, new->br_startblock);
+		xfs_bmbt_set_blockcount(ep,
+			PREV.br_blockcount + RIGHT.br_blockcount);
+		xfs_bmap_trace_post_update(fname, "LF|RF|RC", ip, idx,
+			XFS_DATA_FORK);
+		ip->i_df.if_lastex = idx;
+		xfs_bmap_trace_delete(fname, "LF|RF|RC", ip, idx + 1, 1,
+			XFS_DATA_FORK);
+		xfs_bmap_delete_exlist(ip, idx + 1, 1, XFS_DATA_FORK);
+		if (cur == NULL)
+			rval = XFS_ILOG_DEXT;
+		else {
+			rval = 0;
+			if ((error = xfs_bmbt_lookup_eq(cur, RIGHT.br_startoff,
+					RIGHT.br_startblock,
+					RIGHT.br_blockcount, &i)))
+				goto done;
+			ASSERT(i == 1);
+			if ((error = xfs_bmbt_update(cur, PREV.br_startoff,
+					new->br_startblock,
+					PREV.br_blockcount +
+					RIGHT.br_blockcount, PREV.br_state)))
+				goto done;
+		}
+		*dnew = 0;
+		break;
+
+	case MASK2(LEFT_FILLING, RIGHT_FILLING):
+		/*
+		 * Filling in all of a previously delayed allocation extent.
+		 * Neither the left nor right neighbors are contiguous with
+		 * the new one.
+		 */
+		xfs_bmap_trace_pre_update(fname, "LF|RF", ip, idx,
+			XFS_DATA_FORK);
+		xfs_bmbt_set_startblock(ep, new->br_startblock);
+		xfs_bmap_trace_post_update(fname, "LF|RF", ip, idx,
+			XFS_DATA_FORK);
+		ip->i_df.if_lastex = idx;
+		ip->i_d.di_nextents++;
+		if (cur == NULL)
+			rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
+		else {
+			rval = XFS_ILOG_CORE;
+			if ((error = xfs_bmbt_lookup_eq(cur, new->br_startoff,
+					new->br_startblock, new->br_blockcount,
+					&i)))
+				goto done;
+			ASSERT(i == 0);
+			cur->bc_rec.b.br_state = XFS_EXT_NORM;
+			if ((error = xfs_bmbt_insert(cur, &i)))
+				goto done;
+			ASSERT(i == 1);
+		}
+		*dnew = 0;
+		break;
+
+	case MASK2(LEFT_FILLING, LEFT_CONTIG):
+		/*
+		 * Filling in the first part of a previous delayed allocation.
+		 * The left neighbor is contiguous.
+		 */
+		xfs_bmap_trace_pre_update(fname, "LF|LC", ip, idx - 1,
+			XFS_DATA_FORK);
+		xfs_bmbt_set_blockcount(ep - 1,
+			LEFT.br_blockcount + new->br_blockcount);
+		xfs_bmbt_set_startoff(ep,
+			PREV.br_startoff + new->br_blockcount);
+		xfs_bmap_trace_post_update(fname, "LF|LC", ip, idx - 1,
+			XFS_DATA_FORK);
+		temp = PREV.br_blockcount - new->br_blockcount;
+		xfs_bmap_trace_pre_update(fname, "LF|LC", ip, idx,
+			XFS_DATA_FORK);
+		xfs_bmbt_set_blockcount(ep, temp);
+		ip->i_df.if_lastex = idx - 1;
+		if (cur == NULL)
+			rval = XFS_ILOG_DEXT;
+		else {
+			rval = 0;
+			if ((error = xfs_bmbt_lookup_eq(cur, LEFT.br_startoff,
+					LEFT.br_startblock, LEFT.br_blockcount,
+					&i)))
+				goto done;
+			ASSERT(i == 1);
+			if ((error = xfs_bmbt_update(cur, LEFT.br_startoff,
+					LEFT.br_startblock,
+					LEFT.br_blockcount +
+					new->br_blockcount,
+					LEFT.br_state)))
+				goto done;
+		}
+		temp = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip, temp),
+			STARTBLOCKVAL(PREV.br_startblock));
+		xfs_bmbt_set_startblock(ep, NULLSTARTBLOCK((int)temp));
+		xfs_bmap_trace_post_update(fname, "LF|LC", ip, idx,
+			XFS_DATA_FORK);
+		*dnew = temp;
+		break;
+
+	case MASK(LEFT_FILLING):
+		/*
+		 * Filling in the first part of a previous delayed allocation.
+		 * The left neighbor is not contiguous.
+		 */
+		xfs_bmap_trace_pre_update(fname, "LF", ip, idx, XFS_DATA_FORK);
+		xfs_bmbt_set_startoff(ep, new_endoff);
+		temp = PREV.br_blockcount - new->br_blockcount;
+		xfs_bmbt_set_blockcount(ep, temp);
+		xfs_bmap_trace_insert(fname, "LF", ip, idx, 1, new, NULL,
+			XFS_DATA_FORK);
+		xfs_bmap_insert_exlist(ip, idx, 1, new, XFS_DATA_FORK);
+		ip->i_df.if_lastex = idx;
+		ip->i_d.di_nextents++;
+		if (cur == NULL)
+			rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
+		else {
+			rval = XFS_ILOG_CORE;
+			if ((error = xfs_bmbt_lookup_eq(cur, new->br_startoff,
+					new->br_startblock, new->br_blockcount,
+					&i)))
+				goto done;
+			ASSERT(i == 0);
+			cur->bc_rec.b.br_state = XFS_EXT_NORM;
+			if ((error = xfs_bmbt_insert(cur, &i)))
+				goto done;
+			ASSERT(i == 1);
+		}
+		if (ip->i_d.di_format == XFS_DINODE_FMT_EXTENTS &&
+		    ip->i_d.di_nextents > ip->i_df.if_ext_max) {
+			error = xfs_bmap_extents_to_btree(ip->i_transp, ip,
+					first, flist, &cur, 1, &tmp_rval,
+					XFS_DATA_FORK);
+			rval |= tmp_rval;
+			if (error)
+				goto done;
+		}
+		temp = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip, temp),
+			STARTBLOCKVAL(PREV.br_startblock) -
+			(cur ? cur->bc_private.b.allocated : 0));
+		base = ip->i_df.if_u1.if_extents;
+		ep = &base[idx + 1];
+		xfs_bmbt_set_startblock(ep, NULLSTARTBLOCK((int)temp));
+		xfs_bmap_trace_post_update(fname, "LF", ip, idx + 1,
+			XFS_DATA_FORK);
+		*dnew = temp;
+		break;
+
+	case MASK2(RIGHT_FILLING, RIGHT_CONTIG):
+		/*
+		 * Filling in the last part of a previous delayed allocation.
+		 * The right neighbor is contiguous with the new allocation.
+		 */
+		temp = PREV.br_blockcount - new->br_blockcount;
+		xfs_bmap_trace_pre_update(fname, "RF|RC", ip, idx,
+			XFS_DATA_FORK);
+		xfs_bmap_trace_pre_update(fname, "RF|RC", ip, idx + 1,
+			XFS_DATA_FORK);
+		xfs_bmbt_set_blockcount(ep, temp);
+		xfs_bmbt_set_allf(ep + 1, new->br_startoff, new->br_startblock,
+			new->br_blockcount + RIGHT.br_blockcount,
+			RIGHT.br_state);
+		xfs_bmap_trace_post_update(fname, "RF|RC", ip, idx + 1,
+			XFS_DATA_FORK);
+		ip->i_df.if_lastex = idx + 1;
+		if (cur == NULL)
+			rval = XFS_ILOG_DEXT;
+		else {
+			rval = 0;
+			if ((error = xfs_bmbt_lookup_eq(cur, RIGHT.br_startoff,
+					RIGHT.br_startblock,
+					RIGHT.br_blockcount, &i)))
+				goto done;
+			ASSERT(i == 1);
+			if ((error = xfs_bmbt_update(cur, new->br_startoff,
+					new->br_startblock,
+					new->br_blockcount +
+					RIGHT.br_blockcount,
+					RIGHT.br_state)))
+				goto done;
+		}
+		temp = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip, temp),
+			STARTBLOCKVAL(PREV.br_startblock));
+		xfs_bmbt_set_startblock(ep, NULLSTARTBLOCK((int)temp));
+		xfs_bmap_trace_post_update(fname, "RF|RC", ip, idx,
+			XFS_DATA_FORK);
+		*dnew = temp;
+		break;
+
+	case MASK(RIGHT_FILLING):
+		/*
+		 * Filling in the last part of a previous delayed allocation.
+		 * The right neighbor is not contiguous.
+		 */
+		temp = PREV.br_blockcount - new->br_blockcount;
+		xfs_bmap_trace_pre_update(fname, "RF", ip, idx, XFS_DATA_FORK);
+		xfs_bmbt_set_blockcount(ep, temp);
+		xfs_bmap_trace_insert(fname, "RF", ip, idx + 1, 1,
+			new, NULL, XFS_DATA_FORK);
+		xfs_bmap_insert_exlist(ip, idx + 1, 1, new, XFS_DATA_FORK);
+		ip->i_df.if_lastex = idx + 1;
+		ip->i_d.di_nextents++;
+		if (cur == NULL)
+			rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
+		else {
+			rval = XFS_ILOG_CORE;
+			if ((error = xfs_bmbt_lookup_eq(cur, new->br_startoff,
+					new->br_startblock, new->br_blockcount,
+					&i)))
+				goto done;
+			ASSERT(i == 0);
+			cur->bc_rec.b.br_state = XFS_EXT_NORM;
+			if ((error = xfs_bmbt_insert(cur, &i)))
+				goto done;
+			ASSERT(i == 1);
+		}
+		if (ip->i_d.di_format == XFS_DINODE_FMT_EXTENTS &&
+		    ip->i_d.di_nextents > ip->i_df.if_ext_max) {
+			error = xfs_bmap_extents_to_btree(ip->i_transp, ip,
+				first, flist, &cur, 1, &tmp_rval,
+				XFS_DATA_FORK);
+			rval |= tmp_rval;
+			if (error)
+				goto done;
+		}
+		temp = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip, temp),
+			STARTBLOCKVAL(PREV.br_startblock) -
+			(cur ? cur->bc_private.b.allocated : 0));
+		base = ip->i_df.if_u1.if_extents;
+		ep = &base[idx];
+		xfs_bmbt_set_startblock(ep, NULLSTARTBLOCK((int)temp));
+		xfs_bmap_trace_post_update(fname, "RF", ip, idx, XFS_DATA_FORK);
+		*dnew = temp;
+		break;
+
+	case 0:
+		/*
+		 * Filling in the middle part of a previous delayed allocation.
+		 * Contiguity is impossible here.
+		 * This case is avoided almost all the time.
+		 */
+		temp = new->br_startoff - PREV.br_startoff;
+		xfs_bmap_trace_pre_update(fname, "0", ip, idx, XFS_DATA_FORK);
+		xfs_bmbt_set_blockcount(ep, temp);
+		r[0] = *new;
+		r[1].br_startoff = new_endoff;
+		temp2 = PREV.br_startoff + PREV.br_blockcount - new_endoff;
+		r[1].br_blockcount = temp2;
+		xfs_bmap_trace_insert(fname, "0", ip, idx + 1, 2, &r[0], &r[1],
+			XFS_DATA_FORK);
+		xfs_bmap_insert_exlist(ip, idx + 1, 2, &r[0], XFS_DATA_FORK);
+		ip->i_df.if_lastex = idx + 1;
+		ip->i_d.di_nextents++;
+		if (cur == NULL)
+			rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
+		else {
+			rval = XFS_ILOG_CORE;
+			if ((error = xfs_bmbt_lookup_eq(cur, new->br_startoff,
+					new->br_startblock, new->br_blockcount,
+					&i)))
+				goto done;
+			ASSERT(i == 0);
+			cur->bc_rec.b.br_state = XFS_EXT_NORM;
+			if ((error = xfs_bmbt_insert(cur, &i)))
+				goto done;
+			ASSERT(i == 1);
+		}
+		if (ip->i_d.di_format == XFS_DINODE_FMT_EXTENTS &&
+		    ip->i_d.di_nextents > ip->i_df.if_ext_max) {
+			error = xfs_bmap_extents_to_btree(ip->i_transp, ip,
+					first, flist, &cur, 1, &tmp_rval,
+					XFS_DATA_FORK);
+			rval |= tmp_rval;
+			if (error)
+				goto done;
+		}
+		temp = xfs_bmap_worst_indlen(ip, temp);
+		temp2 = xfs_bmap_worst_indlen(ip, temp2);
+		diff = (int)(temp + temp2 - STARTBLOCKVAL(PREV.br_startblock) -
+			(cur ? cur->bc_private.b.allocated : 0));
+		if (diff > 0 &&
+		    xfs_mod_incore_sb(ip->i_mount, XFS_SBS_FDBLOCKS, -diff, rsvd)) {
+			/*
+			 * Ick gross gag me with a spoon.
+			 */
+			ASSERT(0);	/* want to see if this ever happens! */
+			while (diff > 0) {
+				if (temp) {
+					temp--;
+					diff--;
+					if (!diff ||
+					    !xfs_mod_incore_sb(ip->i_mount,
+						    XFS_SBS_FDBLOCKS, -diff, rsvd))
+						break;
+				}
+				if (temp2) {
+					temp2--;
+					diff--;
+					if (!diff ||
+					    !xfs_mod_incore_sb(ip->i_mount,
+						    XFS_SBS_FDBLOCKS, -diff, rsvd))
+						break;
+				}
+			}
+		}
+		base = ip->i_df.if_u1.if_extents;
+		ep = &base[idx];
+		xfs_bmbt_set_startblock(ep, NULLSTARTBLOCK((int)temp));
+		xfs_bmap_trace_post_update(fname, "0", ip, idx, XFS_DATA_FORK);
+		xfs_bmap_trace_pre_update(fname, "0", ip, idx + 2,
+			XFS_DATA_FORK);
+		xfs_bmbt_set_startblock(ep + 2, NULLSTARTBLOCK((int)temp2));
+		xfs_bmap_trace_post_update(fname, "0", ip, idx + 2,
+			XFS_DATA_FORK);
+		*dnew = temp + temp2;
+		break;
+
+	case MASK3(LEFT_FILLING, LEFT_CONTIG, RIGHT_CONTIG):
+	case MASK3(RIGHT_FILLING, LEFT_CONTIG, RIGHT_CONTIG):
+	case MASK2(LEFT_FILLING, RIGHT_CONTIG):
+	case MASK2(RIGHT_FILLING, LEFT_CONTIG):
+	case MASK2(LEFT_CONTIG, RIGHT_CONTIG):
+	case MASK(LEFT_CONTIG):
+	case MASK(RIGHT_CONTIG):
+		/*
+		 * These cases are all impossible.
+		 */
+		ASSERT(0);
+	}
+	*curp = cur;
+done:
+	*logflagsp = rval;
+	return error;
+#undef	LEFT
+#undef	RIGHT
+#undef	PREV
+#undef	MASK
+#undef	MASK2
+#undef	MASK3
+#undef	MASK4
+#undef	STATE_SET
+#undef	STATE_TEST
+#undef	STATE_SET_TEST
+#undef	SWITCH_STATE
+}
+
+/*
+ * Called by xfs_bmap_add_extent to handle cases converting an unwritten
+ * allocation to a real allocation or vice versa.
+ */
+STATIC int				/* error */
+xfs_bmap_add_extent_unwritten_real(
+	xfs_inode_t		*ip,	/* incore inode pointer */
+	xfs_extnum_t		idx,	/* extent number to update/insert */
+	xfs_btree_cur_t		**curp,	/* if *curp is null, not a btree */
+	xfs_bmbt_irec_t		*new,	/* new data to put in extent list */
+	int			*logflagsp) /* inode logging flags */
+{
+	xfs_bmbt_rec_t		*base;	/* base of extent entry list */
+	xfs_btree_cur_t		*cur;	/* btree cursor */
+	xfs_bmbt_rec_t		*ep;	/* extent entry for idx */
+	int			error;	/* error return value */
+#ifdef XFS_BMAP_TRACE
+	static char		fname[] = "xfs_bmap_add_extent_unwritten_real";
+#endif
+	int			i;	/* temp state */
+	xfs_fileoff_t		new_endoff;	/* end offset of new entry */
+	xfs_exntst_t		newext;	/* new extent state */
+	xfs_exntst_t		oldext;	/* old extent state */
+	xfs_bmbt_irec_t		r[3];	/* neighbor extent entries */
+					/* left is 0, right is 1, prev is 2 */
+	int			rval=0;	/* return value (logging flags) */
+	int			state = 0;/* state bits, accessed thru macros */
+	enum {				/* bit number definitions for state */
+		LEFT_CONTIG,	RIGHT_CONTIG,
+		LEFT_FILLING,	RIGHT_FILLING,
+		LEFT_DELAY,	RIGHT_DELAY,
+		LEFT_VALID,	RIGHT_VALID
+	};
+
+#define	LEFT		r[0]
+#define	RIGHT		r[1]
+#define	PREV		r[2]
+#define	MASK(b)		(1 << (b))
+#define	MASK2(a,b)	(MASK(a) | MASK(b))
+#define	MASK3(a,b,c)	(MASK2(a,b) | MASK(c))
+#define	MASK4(a,b,c,d)	(MASK3(a,b,c) | MASK(d))
+#define	STATE_SET(b,v)	((v) ? (state |= MASK(b)) : (state &= ~MASK(b)))
+#define	STATE_TEST(b)	(state & MASK(b))
+#define	STATE_SET_TEST(b,v)	((v) ? ((state |= MASK(b)), 1) : \
+				       ((state &= ~MASK(b)), 0))
+#define	SWITCH_STATE		\
+	(state & MASK4(LEFT_FILLING, RIGHT_FILLING, LEFT_CONTIG, RIGHT_CONTIG))
+
+	/*
+	 * Set up a bunch of variables to make the tests simpler.
+	 */
+	error = 0;
+	cur = *curp;
+	base = ip->i_df.if_u1.if_extents;
+	ep = &base[idx];
+	xfs_bmbt_get_all(ep, &PREV);
+	newext = new->br_state;
+	oldext = (newext == XFS_EXT_UNWRITTEN) ?
+		XFS_EXT_NORM : XFS_EXT_UNWRITTEN;
+	ASSERT(PREV.br_state == oldext);
+	new_endoff = new->br_startoff + new->br_blockcount;
+	ASSERT(PREV.br_startoff <= new->br_startoff);
+	ASSERT(PREV.br_startoff + PREV.br_blockcount >= new_endoff);
+	/*
+	 * Set flags determining what part of the previous oldext allocation
+	 * extent is being replaced by a newext allocation.
+	 */
+	STATE_SET(LEFT_FILLING, PREV.br_startoff == new->br_startoff);
+	STATE_SET(RIGHT_FILLING,
+		PREV.br_startoff + PREV.br_blockcount == new_endoff);
+	/*
+	 * Check and set flags if this segment has a left neighbor.
+	 * Don't set contiguous if the combined extent would be too large.
+	 */
+	if (STATE_SET_TEST(LEFT_VALID, idx > 0)) {
+		xfs_bmbt_get_all(ep - 1, &LEFT);
+		STATE_SET(LEFT_DELAY, ISNULLSTARTBLOCK(LEFT.br_startblock));
+	}
+	STATE_SET(LEFT_CONTIG,
+		STATE_TEST(LEFT_VALID) && !STATE_TEST(LEFT_DELAY) &&
+		LEFT.br_startoff + LEFT.br_blockcount == new->br_startoff &&
+		LEFT.br_startblock + LEFT.br_blockcount == new->br_startblock &&
+		LEFT.br_state == newext &&
+		LEFT.br_blockcount + new->br_blockcount <= MAXEXTLEN);
+	/*
+	 * Check and set flags if this segment has a right neighbor.
+	 * Don't set contiguous if the combined extent would be too large.
+	 * Also check for all-three-contiguous being too large.
+	 */
+	if (STATE_SET_TEST(RIGHT_VALID,
+			idx <
+			ip->i_df.if_bytes / (uint)sizeof(xfs_bmbt_rec_t) - 1)) {
+		xfs_bmbt_get_all(ep + 1, &RIGHT);
+		STATE_SET(RIGHT_DELAY, ISNULLSTARTBLOCK(RIGHT.br_startblock));
+	}
+	STATE_SET(RIGHT_CONTIG,
+		STATE_TEST(RIGHT_VALID) && !STATE_TEST(RIGHT_DELAY) &&
+		new_endoff == RIGHT.br_startoff &&
+		new->br_startblock + new->br_blockcount ==
+		    RIGHT.br_startblock &&
+		newext == RIGHT.br_state &&
+		new->br_blockcount + RIGHT.br_blockcount <= MAXEXTLEN &&
+		((state & MASK3(LEFT_CONTIG, LEFT_FILLING, RIGHT_FILLING)) !=
+		  MASK3(LEFT_CONTIG, LEFT_FILLING, RIGHT_FILLING) ||
+		 LEFT.br_blockcount + new->br_blockcount + RIGHT.br_blockcount
+		     <= MAXEXTLEN));
+	/*
+	 * Switch out based on the FILLING and CONTIG state bits.
+	 */
+	switch (SWITCH_STATE) {
+
+	case MASK4(LEFT_FILLING, RIGHT_FILLING, LEFT_CONTIG, RIGHT_CONTIG):
+		/*
+		 * Setting all of a previous oldext extent to newext.
+		 * The left and right neighbors are both contiguous with new.
+		 */
+		xfs_bmap_trace_pre_update(fname, "LF|RF|LC|RC", ip, idx - 1,
+			XFS_DATA_FORK);
+		xfs_bmbt_set_blockcount(ep - 1,
+			LEFT.br_blockcount + PREV.br_blockcount +
+			RIGHT.br_blockcount);
+		xfs_bmap_trace_post_update(fname, "LF|RF|LC|RC", ip, idx - 1,
+			XFS_DATA_FORK);
+		xfs_bmap_trace_delete(fname, "LF|RF|LC|RC", ip, idx, 2,
+			XFS_DATA_FORK);
+		xfs_bmap_delete_exlist(ip, idx, 2, XFS_DATA_FORK);
+		ip->i_df.if_lastex = idx - 1;
+		ip->i_d.di_nextents -= 2;
+		if (cur == NULL)
+			rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
+		else {
+			rval = XFS_ILOG_CORE;
+			if ((error = xfs_bmbt_lookup_eq(cur, RIGHT.br_startoff,
+					RIGHT.br_startblock,
+					RIGHT.br_blockcount, &i)))
+				goto done;
+			ASSERT(i == 1);
+			if ((error = xfs_bmbt_delete(cur, &i)))
+				goto done;
+			ASSERT(i == 1);
+			if ((error = xfs_bmbt_decrement(cur, 0, &i)))
+				goto done;
+			ASSERT(i == 1);
+			if ((error = xfs_bmbt_delete(cur, &i)))
+				goto done;
+			ASSERT(i == 1);
+			if ((error = xfs_bmbt_decrement(cur, 0, &i)))
+				goto done;
+			ASSERT(i == 1);
+			if ((error = xfs_bmbt_update(cur, LEFT.br_startoff,
+				LEFT.br_startblock,
+				LEFT.br_blockcount + PREV.br_blockcount +
+				RIGHT.br_blockcount, LEFT.br_state)))
+				goto done;
+		}
+		break;
+
+	case MASK3(LEFT_FILLING, RIGHT_FILLING, LEFT_CONTIG):
+		/*
+		 * Setting all of a previous oldext extent to newext.
+		 * The left neighbor is contiguous, the right is not.
+		 */
+		xfs_bmap_trace_pre_update(fname, "LF|RF|LC", ip, idx - 1,
+			XFS_DATA_FORK);
+		xfs_bmbt_set_blockcount(ep - 1,
+			LEFT.br_blockcount + PREV.br_blockcount);
+		xfs_bmap_trace_post_update(fname, "LF|RF|LC", ip, idx - 1,
+			XFS_DATA_FORK);
+		ip->i_df.if_lastex = idx - 1;
+		xfs_bmap_trace_delete(fname, "LF|RF|LC", ip, idx, 1,
+			XFS_DATA_FORK);
+		xfs_bmap_delete_exlist(ip, idx, 1, XFS_DATA_FORK);
+		ip->i_d.di_nextents--;
+		if (cur == NULL)
+			rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
+		else {
+			rval = XFS_ILOG_CORE;
+			if ((error = xfs_bmbt_lookup_eq(cur, PREV.br_startoff,
+					PREV.br_startblock, PREV.br_blockcount,
+					&i)))
+				goto done;
+			ASSERT(i == 1);
+			if ((error = xfs_bmbt_delete(cur, &i)))
+				goto done;
+			ASSERT(i == 1);
+			if ((error = xfs_bmbt_decrement(cur, 0, &i)))
+				goto done;
+			ASSERT(i == 1);
+			if ((error = xfs_bmbt_update(cur, LEFT.br_startoff,
+				LEFT.br_startblock,
+				LEFT.br_blockcount + PREV.br_blockcount,
+				LEFT.br_state)))
+				goto done;
+		}
+		break;
+
+	case MASK3(LEFT_FILLING, RIGHT_FILLING, RIGHT_CONTIG):
+		/*
+		 * Setting all of a previous oldext extent to newext.
+		 * The right neighbor is contiguous, the left is not.
+		 */
+		xfs_bmap_trace_pre_update(fname, "LF|RF|RC", ip, idx,
+			XFS_DATA_FORK);
+		xfs_bmbt_set_blockcount(ep,
+			PREV.br_blockcount + RIGHT.br_blockcount);
+		xfs_bmbt_set_state(ep, newext);
+		xfs_bmap_trace_post_update(fname, "LF|RF|RC", ip, idx,
+			XFS_DATA_FORK);
+		ip->i_df.if_lastex = idx;
+		xfs_bmap_trace_delete(fname, "LF|RF|RC", ip, idx + 1, 1,
+			XFS_DATA_FORK);
+		xfs_bmap_delete_exlist(ip, idx + 1, 1, XFS_DATA_FORK);
+		ip->i_d.di_nextents--;
+		if (cur == NULL)
+			rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
+		else {
+			rval = XFS_ILOG_CORE;
+			if ((error = xfs_bmbt_lookup_eq(cur, RIGHT.br_startoff,
+					RIGHT.br_startblock,
+					RIGHT.br_blockcount, &i)))
+				goto done;
+			ASSERT(i == 1);
+			if ((error = xfs_bmbt_delete(cur, &i)))
+				goto done;
+			ASSERT(i == 1);
+			if ((error = xfs_bmbt_decrement(cur, 0, &i)))
+				goto done;
+			ASSERT(i == 1);
+			if ((error = xfs_bmbt_update(cur, new->br_startoff,
+				new->br_startblock,
+				new->br_blockcount + RIGHT.br_blockcount,
+				newext)))
+				goto done;
+		}
+		break;
+
+	case MASK2(LEFT_FILLING, RIGHT_FILLING):
+		/*
+		 * Setting all of a previous oldext extent to newext.
+		 * Neither the left nor right neighbors are contiguous with
+		 * the new one.
+		 */
+		xfs_bmap_trace_pre_update(fname, "LF|RF", ip, idx,
+			XFS_DATA_FORK);
+		xfs_bmbt_set_state(ep, newext);
+		xfs_bmap_trace_post_update(fname, "LF|RF", ip, idx,
+			XFS_DATA_FORK);
+		ip->i_df.if_lastex = idx;
+		if (cur == NULL)
+			rval = XFS_ILOG_DEXT;
+		else {
+			rval = 0;
+			if ((error = xfs_bmbt_lookup_eq(cur, new->br_startoff,
+					new->br_startblock, new->br_blockcount,
+					&i)))
+				goto done;
+			ASSERT(i == 1);
+			if ((error = xfs_bmbt_update(cur, new->br_startoff,
+				new->br_startblock, new->br_blockcount,
+				newext)))
+				goto done;
+		}
+		break;
+
+	case MASK2(LEFT_FILLING, LEFT_CONTIG):
+		/*
+		 * Setting the first part of a previous oldext extent to newext.
+		 * The left neighbor is contiguous.
+		 */
+		xfs_bmap_trace_pre_update(fname, "LF|LC", ip, idx - 1,
+			XFS_DATA_FORK);
+		xfs_bmbt_set_blockcount(ep - 1,
+			LEFT.br_blockcount + new->br_blockcount);
+		xfs_bmbt_set_startoff(ep,
+			PREV.br_startoff + new->br_blockcount);
+		xfs_bmap_trace_post_update(fname, "LF|LC", ip, idx - 1,
+			XFS_DATA_FORK);
+		xfs_bmap_trace_pre_update(fname, "LF|LC", ip, idx,
+			XFS_DATA_FORK);
+		xfs_bmbt_set_startblock(ep,
+			new->br_startblock + new->br_blockcount);
+		xfs_bmbt_set_blockcount(ep,
+			PREV.br_blockcount - new->br_blockcount);
+		xfs_bmap_trace_post_update(fname, "LF|LC", ip, idx,
+			XFS_DATA_FORK);
+		ip->i_df.if_lastex = idx - 1;
+		if (cur == NULL)
+			rval = XFS_ILOG_DEXT;
+		else {
+			rval = 0;
+			if ((error = xfs_bmbt_lookup_eq(cur, PREV.br_startoff,
+					PREV.br_startblock, PREV.br_blockcount,
+					&i)))
+				goto done;
+			ASSERT(i == 1);
+			if ((error = xfs_bmbt_update(cur,
+				PREV.br_startoff + new->br_blockcount,
+				PREV.br_startblock + new->br_blockcount,
+				PREV.br_blockcount - new->br_blockcount,
+				oldext)))
+				goto done;
+			if ((error = xfs_bmbt_decrement(cur, 0, &i)))
+				goto done;
+			if (xfs_bmbt_update(cur, LEFT.br_startoff,
+				LEFT.br_startblock,
+				LEFT.br_blockcount + new->br_blockcount,
+				LEFT.br_state))
+				goto done;
+		}
+		break;
+
+	case MASK(LEFT_FILLING):
+		/*
+		 * Setting the first part of a previous oldext extent to newext.
+		 * The left neighbor is not contiguous.
+		 */
+		xfs_bmap_trace_pre_update(fname, "LF", ip, idx, XFS_DATA_FORK);
+		ASSERT(ep && xfs_bmbt_get_state(ep) == oldext);
+		xfs_bmbt_set_startoff(ep, new_endoff);
+		xfs_bmbt_set_blockcount(ep,
+			PREV.br_blockcount - new->br_blockcount);
+		xfs_bmbt_set_startblock(ep,
+			new->br_startblock + new->br_blockcount);
+		xfs_bmap_trace_post_update(fname, "LF", ip, idx, XFS_DATA_FORK);
+		xfs_bmap_trace_insert(fname, "LF", ip, idx, 1, new, NULL,
+			XFS_DATA_FORK);
+		xfs_bmap_insert_exlist(ip, idx, 1, new, XFS_DATA_FORK);
+		ip->i_df.if_lastex = idx;
+		ip->i_d.di_nextents++;
+		if (cur == NULL)
+			rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
+		else {
+			rval = XFS_ILOG_CORE;
+			if ((error = xfs_bmbt_lookup_eq(cur, PREV.br_startoff,
+					PREV.br_startblock, PREV.br_blockcount,
+					&i)))
+				goto done;
+			ASSERT(i == 1);
+			if ((error = xfs_bmbt_update(cur,
+				PREV.br_startoff + new->br_blockcount,
+				PREV.br_startblock + new->br_blockcount,
+				PREV.br_blockcount - new->br_blockcount,
+				oldext)))
+				goto done;
+			cur->bc_rec.b = *new;
+			if ((error = xfs_bmbt_insert(cur, &i)))
+				goto done;
+			ASSERT(i == 1);
+		}
+		break;
+
+	case MASK2(RIGHT_FILLING, RIGHT_CONTIG):
+		/*
+		 * Setting the last part of a previous oldext extent to newext.
+		 * The right neighbor is contiguous with the new allocation.
+		 */
+		xfs_bmap_trace_pre_update(fname, "RF|RC", ip, idx,
+			XFS_DATA_FORK);
+		xfs_bmap_trace_pre_update(fname, "RF|RC", ip, idx + 1,
+			XFS_DATA_FORK);
+		xfs_bmbt_set_blockcount(ep,
+			PREV.br_blockcount - new->br_blockcount);
+		xfs_bmap_trace_post_update(fname, "RF|RC", ip, idx,
+			XFS_DATA_FORK);
+		xfs_bmbt_set_allf(ep + 1, new->br_startoff, new->br_startblock,
+			new->br_blockcount + RIGHT.br_blockcount, newext);
+		xfs_bmap_trace_post_update(fname, "RF|RC", ip, idx + 1,
+			XFS_DATA_FORK);
+		ip->i_df.if_lastex = idx + 1;
+		if (cur == NULL)
+			rval = XFS_ILOG_DEXT;
+		else {
+			rval = 0;
+			if ((error = xfs_bmbt_lookup_eq(cur, PREV.br_startoff,
+					PREV.br_startblock,
+					PREV.br_blockcount, &i)))
+				goto done;
+			ASSERT(i == 1);
+			if ((error = xfs_bmbt_update(cur, PREV.br_startoff,
+				PREV.br_startblock,
+				PREV.br_blockcount - new->br_blockcount,
+				oldext)))
+				goto done;
+			if ((error = xfs_bmbt_increment(cur, 0, &i)))
+				goto done;
+			if ((error = xfs_bmbt_update(cur, new->br_startoff,
+				new->br_startblock,
+				new->br_blockcount + RIGHT.br_blockcount,
+				newext)))
+				goto done;
+		}
+		break;
+
+	case MASK(RIGHT_FILLING):
+		/*
+		 * Setting the last part of a previous oldext extent to newext.
+		 * The right neighbor is not contiguous.
+		 */
+		xfs_bmap_trace_pre_update(fname, "RF", ip, idx, XFS_DATA_FORK);
+		xfs_bmbt_set_blockcount(ep,
+			PREV.br_blockcount - new->br_blockcount);
+		xfs_bmap_trace_post_update(fname, "RF", ip, idx, XFS_DATA_FORK);
+		xfs_bmap_trace_insert(fname, "RF", ip, idx + 1, 1,
+			new, NULL, XFS_DATA_FORK);
+		xfs_bmap_insert_exlist(ip, idx + 1, 1, new, XFS_DATA_FORK);
+		ip->i_df.if_lastex = idx + 1;
+		ip->i_d.di_nextents++;
+		if (cur == NULL)
+			rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
+		else {
+			rval = XFS_ILOG_CORE;
+			if ((error = xfs_bmbt_lookup_eq(cur, PREV.br_startoff,
+					PREV.br_startblock, PREV.br_blockcount,
+					&i)))
+				goto done;
+			ASSERT(i == 1);
+			if ((error = xfs_bmbt_update(cur, PREV.br_startoff,
+				PREV.br_startblock,
+				PREV.br_blockcount - new->br_blockcount,
+				oldext)))
+				goto done;
+			if ((error = xfs_bmbt_lookup_eq(cur, new->br_startoff,
+					new->br_startblock, new->br_blockcount,
+					&i)))
+				goto done;
+			ASSERT(i == 0);
+			cur->bc_rec.b.br_state = XFS_EXT_NORM;
+			if ((error = xfs_bmbt_insert(cur, &i)))
+				goto done;
+			ASSERT(i == 1);
+		}
+		break;
+
+	case 0:
+		/*
+		 * Setting the middle part of a previous oldext extent to
+		 * newext.  Contiguity is impossible here.
+		 * One extent becomes three extents.
+		 */
+		xfs_bmap_trace_pre_update(fname, "0", ip, idx, XFS_DATA_FORK);
+		xfs_bmbt_set_blockcount(ep,
+			new->br_startoff - PREV.br_startoff);
+		xfs_bmap_trace_post_update(fname, "0", ip, idx, XFS_DATA_FORK);
+		r[0] = *new;
+		r[1].br_startoff = new_endoff;
+		r[1].br_blockcount =
+			PREV.br_startoff + PREV.br_blockcount - new_endoff;
+		r[1].br_startblock = new->br_startblock + new->br_blockcount;
+		r[1].br_state = oldext;
+		xfs_bmap_trace_insert(fname, "0", ip, idx + 1, 2, &r[0], &r[1],
+			XFS_DATA_FORK);
+		xfs_bmap_insert_exlist(ip, idx + 1, 2, &r[0], XFS_DATA_FORK);
+		ip->i_df.if_lastex = idx + 1;
+		ip->i_d.di_nextents += 2;
+		if (cur == NULL)
+			rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
+		else {
+			rval = XFS_ILOG_CORE;
+			if ((error = xfs_bmbt_lookup_eq(cur, PREV.br_startoff,
+					PREV.br_startblock, PREV.br_blockcount,
+					&i)))
+				goto done;
+			ASSERT(i == 1);
+			/* new right extent - oldext */
+			if ((error = xfs_bmbt_update(cur, r[1].br_startoff,
+				r[1].br_startblock, r[1].br_blockcount,
+				r[1].br_state)))
+				goto done;
+			/* new left extent - oldext */
+			PREV.br_blockcount =
+				new->br_startoff - PREV.br_startoff;
+			cur->bc_rec.b = PREV;
+			if ((error = xfs_bmbt_insert(cur, &i)))
+				goto done;
+			ASSERT(i == 1);
+			if ((error = xfs_bmbt_increment(cur, 0, &i)))
+				goto done;
+			ASSERT(i == 1);
+			/* new middle extent - newext */
+			cur->bc_rec.b = *new;
+			if ((error = xfs_bmbt_insert(cur, &i)))
+				goto done;
+			ASSERT(i == 1);
+		}
+		break;
+
+	case MASK3(LEFT_FILLING, LEFT_CONTIG, RIGHT_CONTIG):
+	case MASK3(RIGHT_FILLING, LEFT_CONTIG, RIGHT_CONTIG):
+	case MASK2(LEFT_FILLING, RIGHT_CONTIG):
+	case MASK2(RIGHT_FILLING, LEFT_CONTIG):
+	case MASK2(LEFT_CONTIG, RIGHT_CONTIG):
+	case MASK(LEFT_CONTIG):
+	case MASK(RIGHT_CONTIG):
+		/*
+		 * These cases are all impossible.
+		 */
+		ASSERT(0);
+	}
+	*curp = cur;
+done:
+	*logflagsp = rval;
+	return error;
+#undef	LEFT
+#undef	RIGHT
+#undef	PREV
+#undef	MASK
+#undef	MASK2
+#undef	MASK3
+#undef	MASK4
+#undef	STATE_SET
+#undef	STATE_TEST
+#undef	STATE_SET_TEST
+#undef	SWITCH_STATE
+}
+
+/*
+ * Called by xfs_bmap_add_extent to handle cases converting a hole
+ * to a delayed allocation.
+ */
+/*ARGSUSED*/
+STATIC int				/* error */
+xfs_bmap_add_extent_hole_delay(
+	xfs_inode_t		*ip,	/* incore inode pointer */
+	xfs_extnum_t		idx,	/* extent number to update/insert */
+	xfs_btree_cur_t		*cur,	/* if null, not a btree */
+	xfs_bmbt_irec_t		*new,	/* new data to put in extent list */
+	int			*logflagsp, /* inode logging flags */
+	int			rsvd)		/* OK to allocate reserved blocks */
+{
+	xfs_bmbt_rec_t		*base;	/* base of extent entry list */
+	xfs_bmbt_rec_t		*ep;	/* extent list entry for idx */
+#ifdef XFS_BMAP_TRACE
+	static char		fname[] = "xfs_bmap_add_extent_hole_delay";
+#endif
+	xfs_bmbt_irec_t		left;	/* left neighbor extent entry */
+	xfs_filblks_t		newlen=0;	/* new indirect size */
+	xfs_filblks_t		oldlen=0;	/* old indirect size */
+	xfs_bmbt_irec_t		right;	/* right neighbor extent entry */
+	int			state;  /* state bits, accessed thru macros */
+	xfs_filblks_t		temp;	/* temp for indirect calculations */
+	enum {				/* bit number definitions for state */
+		LEFT_CONTIG,	RIGHT_CONTIG,
+		LEFT_DELAY,	RIGHT_DELAY,
+		LEFT_VALID,	RIGHT_VALID
+	};
+
+#define	MASK(b)			(1 << (b))
+#define	MASK2(a,b)		(MASK(a) | MASK(b))
+#define	STATE_SET(b,v)		((v) ? (state |= MASK(b)) : (state &= ~MASK(b)))
+#define	STATE_TEST(b)		(state & MASK(b))
+#define	STATE_SET_TEST(b,v)	((v) ? ((state |= MASK(b)), 1) : \
+				       ((state &= ~MASK(b)), 0))
+#define	SWITCH_STATE		(state & MASK2(LEFT_CONTIG, RIGHT_CONTIG))
+
+	base = ip->i_df.if_u1.if_extents;
+	ep = &base[idx];
+	state = 0;
+	ASSERT(ISNULLSTARTBLOCK(new->br_startblock));
+	/*
+	 * Check and set flags if this segment has a left neighbor
+	 */
+	if (STATE_SET_TEST(LEFT_VALID, idx > 0)) {
+		xfs_bmbt_get_all(ep - 1, &left);
+		STATE_SET(LEFT_DELAY, ISNULLSTARTBLOCK(left.br_startblock));
+	}
+	/*
+	 * Check and set flags if the current (right) segment exists.
+	 * If it doesn't exist, we're converting the hole at end-of-file.
+	 */
+	if (STATE_SET_TEST(RIGHT_VALID,
+			   idx <
+			   ip->i_df.if_bytes / (uint)sizeof(xfs_bmbt_rec_t))) {
+		xfs_bmbt_get_all(ep, &right);
+		STATE_SET(RIGHT_DELAY, ISNULLSTARTBLOCK(right.br_startblock));
+	}
+	/*
+	 * Set contiguity flags on the left and right neighbors.
+	 * Don't let extents get too large, even if the pieces are contiguous.
+	 */
+	STATE_SET(LEFT_CONTIG,
+		STATE_TEST(LEFT_VALID) && STATE_TEST(LEFT_DELAY) &&
+		left.br_startoff + left.br_blockcount == new->br_startoff &&
+		left.br_blockcount + new->br_blockcount <= MAXEXTLEN);
+	STATE_SET(RIGHT_CONTIG,
+		STATE_TEST(RIGHT_VALID) && STATE_TEST(RIGHT_DELAY) &&
+		new->br_startoff + new->br_blockcount == right.br_startoff &&
+		new->br_blockcount + right.br_blockcount <= MAXEXTLEN &&
+		(!STATE_TEST(LEFT_CONTIG) ||
+		 (left.br_blockcount + new->br_blockcount +
+		     right.br_blockcount <= MAXEXTLEN)));
+	/*
+	 * Switch out based on the contiguity flags.
+	 */
+	switch (SWITCH_STATE) {
+
+	case MASK2(LEFT_CONTIG, RIGHT_CONTIG):
+		/*
+		 * New allocation is contiguous with delayed allocations
+		 * on the left and on the right.
+		 * Merge all three into a single extent list entry.
+		 */
+		temp = left.br_blockcount + new->br_blockcount +
+			right.br_blockcount;
+		xfs_bmap_trace_pre_update(fname, "LC|RC", ip, idx - 1,
+			XFS_DATA_FORK);
+		xfs_bmbt_set_blockcount(ep - 1, temp);
+		oldlen = STARTBLOCKVAL(left.br_startblock) +
+			STARTBLOCKVAL(new->br_startblock) +
+			STARTBLOCKVAL(right.br_startblock);
+		newlen = xfs_bmap_worst_indlen(ip, temp);
+		xfs_bmbt_set_startblock(ep - 1, NULLSTARTBLOCK((int)newlen));
+		xfs_bmap_trace_post_update(fname, "LC|RC", ip, idx - 1,
+			XFS_DATA_FORK);
+		xfs_bmap_trace_delete(fname, "LC|RC", ip, idx, 1,
+			XFS_DATA_FORK);
+		xfs_bmap_delete_exlist(ip, idx, 1, XFS_DATA_FORK);
+		ip->i_df.if_lastex = idx - 1;
+		break;
+
+	case MASK(LEFT_CONTIG):
+		/*
+		 * New allocation is contiguous with a delayed allocation
+		 * on the left.
+		 * Merge the new allocation with the left neighbor.
+		 */
+		temp = left.br_blockcount + new->br_blockcount;
+		xfs_bmap_trace_pre_update(fname, "LC", ip, idx - 1,
+			XFS_DATA_FORK);
+		xfs_bmbt_set_blockcount(ep - 1, temp);
+		oldlen = STARTBLOCKVAL(left.br_startblock) +
+			STARTBLOCKVAL(new->br_startblock);
+		newlen = xfs_bmap_worst_indlen(ip, temp);
+		xfs_bmbt_set_startblock(ep - 1, NULLSTARTBLOCK((int)newlen));
+		xfs_bmap_trace_post_update(fname, "LC", ip, idx - 1,
+			XFS_DATA_FORK);
+		ip->i_df.if_lastex = idx - 1;
+		break;
+
+	case MASK(RIGHT_CONTIG):
+		/*
+		 * New allocation is contiguous with a delayed allocation
+		 * on the right.
+		 * Merge the new allocation with the right neighbor.
+		 */
+		xfs_bmap_trace_pre_update(fname, "RC", ip, idx, XFS_DATA_FORK);
+		temp = new->br_blockcount + right.br_blockcount;
+		oldlen = STARTBLOCKVAL(new->br_startblock) +
+			STARTBLOCKVAL(right.br_startblock);
+		newlen = xfs_bmap_worst_indlen(ip, temp);
+		xfs_bmbt_set_allf(ep, new->br_startoff,
+			NULLSTARTBLOCK((int)newlen), temp, right.br_state);
+		xfs_bmap_trace_post_update(fname, "RC", ip, idx, XFS_DATA_FORK);
+		ip->i_df.if_lastex = idx;
+		break;
+
+	case 0:
+		/*
+		 * New allocation is not contiguous with another
+		 * delayed allocation.
+		 * Insert a new entry.
+		 */
+		oldlen = newlen = 0;
+		xfs_bmap_trace_insert(fname, "0", ip, idx, 1, new, NULL,
+			XFS_DATA_FORK);
+		xfs_bmap_insert_exlist(ip, idx, 1, new, XFS_DATA_FORK);
+		ip->i_df.if_lastex = idx;
+		break;
+	}
+	if (oldlen != newlen) {
+		ASSERT(oldlen > newlen);
+		xfs_mod_incore_sb(ip->i_mount, XFS_SBS_FDBLOCKS,
+			(int)(oldlen - newlen), rsvd);
+		/*
+		 * Nothing to do for disk quota accounting here.
+		 */
+	}
+	*logflagsp = 0;
+	return 0;
+#undef	MASK
+#undef	MASK2
+#undef	STATE_SET
+#undef	STATE_TEST
+#undef	STATE_SET_TEST
+#undef	SWITCH_STATE
+}
+
+/*
+ * Called by xfs_bmap_add_extent to handle cases converting a hole
+ * to a real allocation.
+ */
+STATIC int				/* error */
+xfs_bmap_add_extent_hole_real(
+	xfs_inode_t		*ip,	/* incore inode pointer */
+	xfs_extnum_t		idx,	/* extent number to update/insert */
+	xfs_btree_cur_t		*cur,	/* if null, not a btree */
+	xfs_bmbt_irec_t		*new,	/* new data to put in extent list */
+	int			*logflagsp, /* inode logging flags */
+	int			whichfork) /* data or attr fork */
+{
+	xfs_bmbt_rec_t		*ep;	/* pointer to extent entry ins. point */
+	int			error;	/* error return value */
+#ifdef XFS_BMAP_TRACE
+	static char		fname[] = "xfs_bmap_add_extent_hole_real";
+#endif
+	int			i;	/* temp state */
+	xfs_ifork_t		*ifp;	/* inode fork pointer */
+	xfs_bmbt_irec_t		left;	/* left neighbor extent entry */
+	xfs_bmbt_irec_t		right;	/* right neighbor extent entry */
+	int			state;	/* state bits, accessed thru macros */
+	enum {				/* bit number definitions for state */
+		LEFT_CONTIG,	RIGHT_CONTIG,
+		LEFT_DELAY,	RIGHT_DELAY,
+		LEFT_VALID,	RIGHT_VALID
+	};
+
+#define	MASK(b)			(1 << (b))
+#define	MASK2(a,b)		(MASK(a) | MASK(b))
+#define	STATE_SET(b,v)		((v) ? (state |= MASK(b)) : (state &= ~MASK(b)))
+#define	STATE_TEST(b)		(state & MASK(b))
+#define	STATE_SET_TEST(b,v)	((v) ? ((state |= MASK(b)), 1) : \
+				       ((state &= ~MASK(b)), 0))
+#define	SWITCH_STATE		(state & MASK2(LEFT_CONTIG, RIGHT_CONTIG))
+
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	ASSERT(idx <= ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t));
+	ep = &ifp->if_u1.if_extents[idx];
+	state = 0;
+	/*
+	 * Check and set flags if this segment has a left neighbor.
+	 */
+	if (STATE_SET_TEST(LEFT_VALID, idx > 0)) {
+		xfs_bmbt_get_all(ep - 1, &left);
+		STATE_SET(LEFT_DELAY, ISNULLSTARTBLOCK(left.br_startblock));
+	}
+	/*
+	 * Check and set flags if this segment has a current value.
+	 * Not true if we're inserting into the "hole" at eof.
+	 */
+	if (STATE_SET_TEST(RIGHT_VALID,
+			   idx <
+			   ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t))) {
+		xfs_bmbt_get_all(ep, &right);
+		STATE_SET(RIGHT_DELAY, ISNULLSTARTBLOCK(right.br_startblock));
+	}
+	/*
+	 * We're inserting a real allocation between "left" and "right".
+	 * Set the contiguity flags.  Don't let extents get too large.
+	 */
+	STATE_SET(LEFT_CONTIG,
+		STATE_TEST(LEFT_VALID) && !STATE_TEST(LEFT_DELAY) &&
+		left.br_startoff + left.br_blockcount == new->br_startoff &&
+		left.br_startblock + left.br_blockcount == new->br_startblock &&
+		left.br_state == new->br_state &&
+		left.br_blockcount + new->br_blockcount <= MAXEXTLEN);
+	STATE_SET(RIGHT_CONTIG,
+		STATE_TEST(RIGHT_VALID) && !STATE_TEST(RIGHT_DELAY) &&
+		new->br_startoff + new->br_blockcount == right.br_startoff &&
+		new->br_startblock + new->br_blockcount ==
+		    right.br_startblock &&
+		new->br_state == right.br_state &&
+		new->br_blockcount + right.br_blockcount <= MAXEXTLEN &&
+		(!STATE_TEST(LEFT_CONTIG) ||
+		 left.br_blockcount + new->br_blockcount +
+		     right.br_blockcount <= MAXEXTLEN));
+
+	/*
+	 * Select which case we're in here, and implement it.
+	 */
+	switch (SWITCH_STATE) {
+
+	case MASK2(LEFT_CONTIG, RIGHT_CONTIG):
+		/*
+		 * New allocation is contiguous with real allocations on the
+		 * left and on the right.
+		 * Merge all three into a single extent list entry.
+		 */
+		xfs_bmap_trace_pre_update(fname, "LC|RC", ip, idx - 1,
+			whichfork);
+		xfs_bmbt_set_blockcount(ep - 1,
+			left.br_blockcount + new->br_blockcount +
+			right.br_blockcount);
+		xfs_bmap_trace_post_update(fname, "LC|RC", ip, idx - 1,
+			whichfork);
+		xfs_bmap_trace_delete(fname, "LC|RC", ip,
+			idx, 1, whichfork);
+		xfs_bmap_delete_exlist(ip, idx, 1, whichfork);
+		ifp->if_lastex = idx - 1;
+		XFS_IFORK_NEXT_SET(ip, whichfork,
+			XFS_IFORK_NEXTENTS(ip, whichfork) - 1);
+		if (cur == NULL) {
+			*logflagsp = XFS_ILOG_CORE | XFS_ILOG_FEXT(whichfork);
+			return 0;
+		}
+		*logflagsp = XFS_ILOG_CORE;
+		if ((error = xfs_bmbt_lookup_eq(cur, right.br_startoff,
+				right.br_startblock, right.br_blockcount, &i)))
+			return error;
+		ASSERT(i == 1);
+		if ((error = xfs_bmbt_delete(cur, &i)))
+			return error;
+		ASSERT(i == 1);
+		if ((error = xfs_bmbt_decrement(cur, 0, &i)))
+			return error;
+		ASSERT(i == 1);
+		error = xfs_bmbt_update(cur, left.br_startoff,
+				left.br_startblock,
+				left.br_blockcount + new->br_blockcount +
+				right.br_blockcount, left.br_state);
+		return error;
+
+	case MASK(LEFT_CONTIG):
+		/*
+		 * New allocation is contiguous with a real allocation
+		 * on the left.
+		 * Merge the new allocation with the left neighbor.
+		 */
+		xfs_bmap_trace_pre_update(fname, "LC", ip, idx - 1, whichfork);
+		xfs_bmbt_set_blockcount(ep - 1,
+			left.br_blockcount + new->br_blockcount);
+		xfs_bmap_trace_post_update(fname, "LC", ip, idx - 1, whichfork);
+		ifp->if_lastex = idx - 1;
+		if (cur == NULL) {
+			*logflagsp = XFS_ILOG_FEXT(whichfork);
+			return 0;
+		}
+		*logflagsp = 0;
+		if ((error = xfs_bmbt_lookup_eq(cur, left.br_startoff,
+				left.br_startblock, left.br_blockcount, &i)))
+			return error;
+		ASSERT(i == 1);
+		error = xfs_bmbt_update(cur, left.br_startoff,
+				left.br_startblock,
+				left.br_blockcount + new->br_blockcount,
+				left.br_state);
+		return error;
+
+	case MASK(RIGHT_CONTIG):
+		/*
+		 * New allocation is contiguous with a real allocation
+		 * on the right.
+		 * Merge the new allocation with the right neighbor.
+		 */
+		xfs_bmap_trace_pre_update(fname, "RC", ip, idx, whichfork);
+		xfs_bmbt_set_allf(ep, new->br_startoff, new->br_startblock,
+			new->br_blockcount + right.br_blockcount,
+			right.br_state);
+		xfs_bmap_trace_post_update(fname, "RC", ip, idx, whichfork);
+		ifp->if_lastex = idx;
+		if (cur == NULL) {
+			*logflagsp = XFS_ILOG_FEXT(whichfork);
+			return 0;
+		}
+		*logflagsp = 0;
+		if ((error = xfs_bmbt_lookup_eq(cur, right.br_startoff,
+				right.br_startblock, right.br_blockcount, &i)))
+			return error;
+		ASSERT(i == 1);
+		error = xfs_bmbt_update(cur, new->br_startoff,
+				new->br_startblock,
+				new->br_blockcount + right.br_blockcount,
+				right.br_state);
+		return error;
+
+	case 0:
+		/*
+		 * New allocation is not contiguous with another
+		 * real allocation.
+		 * Insert a new entry.
+		 */
+		xfs_bmap_trace_insert(fname, "0", ip, idx, 1, new, NULL,
+			whichfork);
+		xfs_bmap_insert_exlist(ip, idx, 1, new, whichfork);
+		ifp->if_lastex = idx;
+		XFS_IFORK_NEXT_SET(ip, whichfork,
+			XFS_IFORK_NEXTENTS(ip, whichfork) + 1);
+		if (cur == NULL) {
+			*logflagsp = XFS_ILOG_CORE | XFS_ILOG_FEXT(whichfork);
+			return 0;
+		}
+		*logflagsp = XFS_ILOG_CORE;
+		if ((error = xfs_bmbt_lookup_eq(cur, new->br_startoff,
+				new->br_startblock, new->br_blockcount, &i)))
+			return error;
+		ASSERT(i == 0);
+		cur->bc_rec.b.br_state = new->br_state;
+		if ((error = xfs_bmbt_insert(cur, &i)))
+			return error;
+		ASSERT(i == 1);
+		return 0;
+	}
+#undef	MASK
+#undef	MASK2
+#undef	STATE_SET
+#undef	STATE_TEST
+#undef	STATE_SET_TEST
+#undef	SWITCH_STATE
+	/* NOTREACHED */
+	ASSERT(0);
+	return 0; /* keep gcc quite */
+}
+
+#define XFS_ALLOC_GAP_UNITS	4
+
+/*
+ * xfs_bmap_alloc is called by xfs_bmapi to allocate an extent for a file.
+ * It figures out where to ask the underlying allocator to put the new extent.
+ */
+STATIC int				/* error */
+xfs_bmap_alloc(
+	xfs_bmalloca_t	*ap)		/* bmap alloc argument struct */
+{
+	xfs_fsblock_t	adjust;		/* adjustment to block numbers */
+	xfs_alloctype_t	atype=0;	/* type for allocation routines */
+	int		error;		/* error return value */
+	xfs_agnumber_t	fb_agno;	/* ag number of ap->firstblock */
+	xfs_mount_t	*mp;		/* mount point structure */
+	int		nullfb;		/* true if ap->firstblock isn't set */
+	int		rt;		/* true if inode is realtime */
+#ifdef __KERNEL__
+	xfs_extlen_t	prod=0;		/* product factor for allocators */
+	xfs_extlen_t	ralen=0;	/* realtime allocation length */
+#endif
+
+#define	ISVALID(x,y)	\
+	(rt ? \
+		(x) < mp->m_sb.sb_rblocks : \
+		XFS_FSB_TO_AGNO(mp, x) == XFS_FSB_TO_AGNO(mp, y) && \
+		XFS_FSB_TO_AGNO(mp, x) < mp->m_sb.sb_agcount && \
+		XFS_FSB_TO_AGBNO(mp, x) < mp->m_sb.sb_agblocks)
+
+	/*
+	 * Set up variables.
+	 */
+	mp = ap->ip->i_mount;
+	nullfb = ap->firstblock == NULLFSBLOCK;
+	rt = XFS_IS_REALTIME_INODE(ap->ip) && ap->userdata;
+	fb_agno = nullfb ? NULLAGNUMBER : XFS_FSB_TO_AGNO(mp, ap->firstblock);
+#ifdef __KERNEL__
+	if (rt) {
+		xfs_extlen_t	extsz;		/* file extent size for rt */
+		xfs_fileoff_t	nexto;		/* next file offset */
+		xfs_extlen_t	orig_alen;	/* original ap->alen */
+		xfs_fileoff_t	orig_end;	/* original off+len */
+		xfs_fileoff_t	orig_off;	/* original ap->off */
+		xfs_extlen_t	mod_off;	/* modulus calculations */
+		xfs_fileoff_t	prevo;		/* previous file offset */
+		xfs_rtblock_t	rtx;		/* realtime extent number */
+		xfs_extlen_t	temp;		/* temp for rt calculations */
+
+		/*
+		 * Set prod to match the realtime extent size.
+		 */
+		if (!(extsz = ap->ip->i_d.di_extsize))
+			extsz = mp->m_sb.sb_rextsize;
+		prod = extsz / mp->m_sb.sb_rextsize;
+		orig_off = ap->off;
+		orig_alen = ap->alen;
+		orig_end = orig_off + orig_alen;
+		/*
+		 * If the file offset is unaligned vs. the extent size
+		 * we need to align it.  This will be possible unless
+		 * the file was previously written with a kernel that didn't
+		 * perform this alignment.
+		 */
+		mod_off = do_mod(orig_off, extsz);
+		if (mod_off) {
+			ap->alen += mod_off;
+			ap->off -= mod_off;
+		}
+		/*
+		 * Same adjustment for the end of the requested area.
+		 */
+		if ((temp = (ap->alen % extsz)))
+			ap->alen += extsz - temp;
+		/*
+		 * If the previous block overlaps with this proposed allocation
+		 * then move the start forward without adjusting the length.
+		 */
+		prevo =
+			ap->prevp->br_startoff == NULLFILEOFF ?
+				0 :
+				(ap->prevp->br_startoff +
+				 ap->prevp->br_blockcount);
+		if (ap->off != orig_off && ap->off < prevo)
+			ap->off = prevo;
+		/*
+		 * If the next block overlaps with this proposed allocation
+		 * then move the start back without adjusting the length,
+		 * but not before offset 0.
+		 * This may of course make the start overlap previous block,
+		 * and if we hit the offset 0 limit then the next block
+		 * can still overlap too.
+		 */
+		nexto = (ap->eof || ap->gotp->br_startoff == NULLFILEOFF) ?
+			NULLFILEOFF : ap->gotp->br_startoff;
+		if (!ap->eof &&
+		    ap->off + ap->alen != orig_end &&
+		    ap->off + ap->alen > nexto)
+			ap->off = nexto > ap->alen ? nexto - ap->alen : 0;
+		/*
+		 * If we're now overlapping the next or previous extent that
+		 * means we can't fit an extsz piece in this hole.  Just move
+		 * the start forward to the first valid spot and set
+		 * the length so we hit the end.
+		 */
+		if ((ap->off != orig_off && ap->off < prevo) ||
+		    (ap->off + ap->alen != orig_end &&
+		     ap->off + ap->alen > nexto)) {
+			ap->off = prevo;
+			ap->alen = nexto - prevo;
+		}
+		/*
+		 * If the result isn't a multiple of rtextents we need to
+		 * remove blocks until it is.
+		 */
+		if ((temp = (ap->alen % mp->m_sb.sb_rextsize))) {
+			/*
+			 * We're not covering the original request, or
+			 * we won't be able to once we fix the length.
+			 */
+			if (orig_off < ap->off ||
+			    orig_end > ap->off + ap->alen ||
+			    ap->alen - temp < orig_alen)
+				return XFS_ERROR(EINVAL);
+			/*
+			 * Try to fix it by moving the start up.
+			 */
+			if (ap->off + temp <= orig_off) {
+				ap->alen -= temp;
+				ap->off += temp;
+			}
+			/*
+			 * Try to fix it by moving the end in.
+			 */
+			else if (ap->off + ap->alen - temp >= orig_end)
+				ap->alen -= temp;
+			/*
+			 * Set the start to the minimum then trim the length.
+			 */
+			else {
+				ap->alen -= orig_off - ap->off;
+				ap->off = orig_off;
+				ap->alen -= ap->alen % mp->m_sb.sb_rextsize;
+			}
+			/*
+			 * Result doesn't cover the request, fail it.
+			 */
+			if (orig_off < ap->off || orig_end > ap->off + ap->alen)
+				return XFS_ERROR(EINVAL);
+		}
+		ASSERT(ap->alen % mp->m_sb.sb_rextsize == 0);
+		/*
+		 * If the offset & length are not perfectly aligned
+		 * then kill prod, it will just get us in trouble.
+		 */
+		if (do_mod(ap->off, extsz) || ap->alen % extsz)
+			prod = 1;
+		/*
+		 * Set ralen to be the actual requested length in rtextents.
+		 */
+		ralen = ap->alen / mp->m_sb.sb_rextsize;
+		/*
+		 * If the old value was close enough to MAXEXTLEN that
+		 * we rounded up to it, cut it back so it's valid again.
+		 * Note that if it's a really large request (bigger than
+		 * MAXEXTLEN), we don't hear about that number, and can't
+		 * adjust the starting point to match it.
+		 */
+		if (ralen * mp->m_sb.sb_rextsize >= MAXEXTLEN)
+			ralen = MAXEXTLEN / mp->m_sb.sb_rextsize;
+		/*
+		 * If it's an allocation to an empty file at offset 0,
+		 * pick an extent that will space things out in the rt area.
+		 */
+		if (ap->eof && ap->off == 0) {
+			error = xfs_rtpick_extent(mp, ap->tp, ralen, &rtx);
+			if (error)
+				return error;
+			ap->rval = rtx * mp->m_sb.sb_rextsize;
+		} else
+			ap->rval = 0;
+	}
+#else
+	if (rt)
+		ap->rval = 0;
+#endif	/* __KERNEL__ */
+	else if (nullfb)
+		ap->rval = XFS_INO_TO_FSB(mp, ap->ip->i_ino);
+	else
+		ap->rval = ap->firstblock;
+	/*
+	 * If allocating at eof, and there's a previous real block,
+	 * try to use it's last block as our starting point.
+	 */
+	if (ap->eof && ap->prevp->br_startoff != NULLFILEOFF &&
+	    !ISNULLSTARTBLOCK(ap->prevp->br_startblock) &&
+	    ISVALID(ap->prevp->br_startblock + ap->prevp->br_blockcount,
+		    ap->prevp->br_startblock)) {
+		ap->rval = ap->prevp->br_startblock + ap->prevp->br_blockcount;
+		/*
+		 * Adjust for the gap between prevp and us.
+		 */
+		adjust = ap->off -
+			(ap->prevp->br_startoff + ap->prevp->br_blockcount);
+		if (adjust &&
+		    ISVALID(ap->rval + adjust, ap->prevp->br_startblock))
+			ap->rval += adjust;
+	}
+	/*
+	 * If not at eof, then compare the two neighbor blocks.
+	 * Figure out whether either one gives us a good starting point,
+	 * and pick the better one.
+	 */
+	else if (!ap->eof) {
+		xfs_fsblock_t	gotbno;		/* right side block number */
+		xfs_fsblock_t	gotdiff=0;	/* right side difference */
+		xfs_fsblock_t	prevbno;	/* left side block number */
+		xfs_fsblock_t	prevdiff=0;	/* left side difference */
+
+		/*
+		 * If there's a previous (left) block, select a requested
+		 * start block based on it.
+		 */
+		if (ap->prevp->br_startoff != NULLFILEOFF &&
+		    !ISNULLSTARTBLOCK(ap->prevp->br_startblock) &&
+		    (prevbno = ap->prevp->br_startblock +
+			       ap->prevp->br_blockcount) &&
+		    ISVALID(prevbno, ap->prevp->br_startblock)) {
+			/*
+			 * Calculate gap to end of previous block.
+			 */
+			adjust = prevdiff = ap->off -
+				(ap->prevp->br_startoff +
+				 ap->prevp->br_blockcount);
+			/*
+			 * Figure the startblock based on the previous block's
+			 * end and the gap size.
+			 * Heuristic!
+			 * If the gap is large relative to the piece we're
+			 * allocating, or using it gives us an invalid block
+			 * number, then just use the end of the previous block.
+			 */
+			if (prevdiff <= XFS_ALLOC_GAP_UNITS * ap->alen &&
+			    ISVALID(prevbno + prevdiff,
+				    ap->prevp->br_startblock))
+				prevbno += adjust;
+			else
+				prevdiff += adjust;
+			/*
+			 * If the firstblock forbids it, can't use it,
+			 * must use default.
+			 */
+			if (!rt && !nullfb &&
+			    XFS_FSB_TO_AGNO(mp, prevbno) != fb_agno)
+				prevbno = NULLFSBLOCK;
+		}
+		/*
+		 * No previous block or can't follow it, just default.
+		 */
+		else
+			prevbno = NULLFSBLOCK;
+		/*
+		 * If there's a following (right) block, select a requested
+		 * start block based on it.
+		 */
+		if (!ISNULLSTARTBLOCK(ap->gotp->br_startblock)) {
+			/*
+			 * Calculate gap to start of next block.
+			 */
+			adjust = gotdiff = ap->gotp->br_startoff - ap->off;
+			/*
+			 * Figure the startblock based on the next block's
+			 * start and the gap size.
+			 */
+			gotbno = ap->gotp->br_startblock;
+			/*
+			 * Heuristic!
+			 * If the gap is large relative to the piece we're
+			 * allocating, or using it gives us an invalid block
+			 * number, then just use the start of the next block
+			 * offset by our length.
+			 */
+			if (gotdiff <= XFS_ALLOC_GAP_UNITS * ap->alen &&
+			    ISVALID(gotbno - gotdiff, gotbno))
+				gotbno -= adjust;
+			else if (ISVALID(gotbno - ap->alen, gotbno)) {
+				gotbno -= ap->alen;
+				gotdiff += adjust - ap->alen;
+			} else
+				gotdiff += adjust;
+			/*
+			 * If the firstblock forbids it, can't use it,
+			 * must use default.
+			 */
+			if (!rt && !nullfb &&
+			    XFS_FSB_TO_AGNO(mp, gotbno) != fb_agno)
+				gotbno = NULLFSBLOCK;
+		}
+		/*
+		 * No next block, just default.
+		 */
+		else
+			gotbno = NULLFSBLOCK;
+		/*
+		 * If both valid, pick the better one, else the only good
+		 * one, else ap->rval is already set (to 0 or the inode block).
+		 */
+		if (prevbno != NULLFSBLOCK && gotbno != NULLFSBLOCK)
+			ap->rval = prevdiff <= gotdiff ? prevbno : gotbno;
+		else if (prevbno != NULLFSBLOCK)
+			ap->rval = prevbno;
+		else if (gotbno != NULLFSBLOCK)
+			ap->rval = gotbno;
+	}
+	/*
+	 * If allowed, use ap->rval; otherwise must use firstblock since
+	 * it's in the right allocation group.
+	 */
+	if (nullfb || rt || XFS_FSB_TO_AGNO(mp, ap->rval) == fb_agno)
+		;
+	else
+		ap->rval = ap->firstblock;
+	/*
+	 * Realtime allocation, done through xfs_rtallocate_extent.
+	 */
+	if (rt) {
+#ifndef __KERNEL__
+		ASSERT(0);
+#else
+		xfs_rtblock_t	rtb;
+
+		atype = ap->rval == 0 ?
+			XFS_ALLOCTYPE_ANY_AG : XFS_ALLOCTYPE_NEAR_BNO;
+		do_div(ap->rval, mp->m_sb.sb_rextsize);
+		rtb = ap->rval;
+		ap->alen = ralen;
+		if ((error = xfs_rtallocate_extent(ap->tp, ap->rval, 1, ap->alen,
+				&ralen, atype, ap->wasdel, prod, &rtb)))
+			return error;
+		if (rtb == NULLFSBLOCK && prod > 1 &&
+		    (error = xfs_rtallocate_extent(ap->tp, ap->rval, 1,
+						   ap->alen, &ralen, atype,
+						   ap->wasdel, 1, &rtb)))
+			return error;
+		ap->rval = rtb;
+		if (ap->rval != NULLFSBLOCK) {
+			ap->rval *= mp->m_sb.sb_rextsize;
+			ralen *= mp->m_sb.sb_rextsize;
+			ap->alen = ralen;
+			ap->ip->i_d.di_nblocks += ralen;
+			xfs_trans_log_inode(ap->tp, ap->ip, XFS_ILOG_CORE);
+			if (ap->wasdel)
+				ap->ip->i_delayed_blks -= ralen;
+			/*
+			 * Adjust the disk quota also. This was reserved
+			 * earlier.
+			 */
+			XFS_TRANS_MOD_DQUOT_BYINO(mp, ap->tp, ap->ip,
+				ap->wasdel ? XFS_TRANS_DQ_DELRTBCOUNT :
+						XFS_TRANS_DQ_RTBCOUNT,
+				(long) ralen);
+		} else
+			ap->alen = 0;
+#endif	/* __KERNEL__ */
+	}
+	/*
+	 * Normal allocation, done through xfs_alloc_vextent.
+	 */
+	else {
+		xfs_agnumber_t	ag;
+		xfs_alloc_arg_t	args;
+		xfs_extlen_t	blen;
+		xfs_extlen_t	delta;
+		int		isaligned;
+		xfs_extlen_t	longest;
+		xfs_extlen_t	need;
+		xfs_extlen_t	nextminlen=0;
+		int		notinit;
+		xfs_perag_t	*pag;
+		xfs_agnumber_t	startag;
+		int		tryagain;
+
+		tryagain = isaligned = 0;
+		args.tp = ap->tp;
+		args.mp = mp;
+		args.fsbno = ap->rval;
+		args.maxlen = MIN(ap->alen, mp->m_sb.sb_agblocks);
+		blen = 0;
+		if (nullfb) {
+			args.type = XFS_ALLOCTYPE_START_BNO;
+			args.total = ap->total;
+			/*
+			 * Find the longest available space.
+			 * We're going to try for the whole allocation at once.
+			 */
+			startag = ag = XFS_FSB_TO_AGNO(mp, args.fsbno);
+			notinit = 0;
+			down_read(&mp->m_peraglock);
+			while (blen < ap->alen) {
+				pag = &mp->m_perag[ag];
+				if (!pag->pagf_init &&
+				    (error = xfs_alloc_pagf_init(mp, args.tp,
+					    ag, XFS_ALLOC_FLAG_TRYLOCK))) {
+					up_read(&mp->m_peraglock);
+					return error;
+				}
+				/*
+				 * See xfs_alloc_fix_freelist...
+				 */
+				if (pag->pagf_init) {
+					need = XFS_MIN_FREELIST_PAG(pag, mp);
+					delta = need > pag->pagf_flcount ?
+						need - pag->pagf_flcount : 0;
+					longest = (pag->pagf_longest > delta) ?
+						(pag->pagf_longest - delta) :
+						(pag->pagf_flcount > 0 ||
+						 pag->pagf_longest > 0);
+					if (blen < longest)
+						blen = longest;
+				} else
+					notinit = 1;
+				if (++ag == mp->m_sb.sb_agcount)
+					ag = 0;
+				if (ag == startag)
+					break;
+			}
+			up_read(&mp->m_peraglock);
+			/*
+			 * Since the above loop did a BUF_TRYLOCK, it is
+			 * possible that there is space for this request.
+			 */
+			if (notinit || blen < ap->minlen)
+				args.minlen = ap->minlen;
+			/*
+			 * If the best seen length is less than the request
+			 * length, use the best as the minimum.
+			 */
+			else if (blen < ap->alen)
+				args.minlen = blen;
+			/*
+			 * Otherwise we've seen an extent as big as alen,
+			 * use that as the minimum.
+			 */
+			else
+				args.minlen = ap->alen;
+		} else if (ap->low) {
+			args.type = XFS_ALLOCTYPE_FIRST_AG;
+			args.total = args.minlen = ap->minlen;
+		} else {
+			args.type = XFS_ALLOCTYPE_NEAR_BNO;
+			args.total = ap->total;
+			args.minlen = ap->minlen;
+		}
+		if (ap->ip->i_d.di_extsize) {
+			args.prod = ap->ip->i_d.di_extsize;
+			if ((args.mod = (xfs_extlen_t)do_mod(ap->off, args.prod)))
+				args.mod = (xfs_extlen_t)(args.prod - args.mod);
+		} else if (mp->m_sb.sb_blocksize >= NBPP) {
+			args.prod = 1;
+			args.mod = 0;
+		} else {
+			args.prod = NBPP >> mp->m_sb.sb_blocklog;
+			if ((args.mod = (xfs_extlen_t)(do_mod(ap->off, args.prod))))
+				args.mod = (xfs_extlen_t)(args.prod - args.mod);
+		}
+		/*
+		 * If we are not low on available data blocks, and the
+		 * underlying logical volume manager is a stripe, and
+		 * the file offset is zero then try to allocate data
+		 * blocks on stripe unit boundary.
+		 * NOTE: ap->aeof is only set if the allocation length
+		 * is >= the stripe unit and the allocation offset is
+		 * at the end of file.
+		 */
+		if (!ap->low && ap->aeof) {
+			if (!ap->off) {
+				args.alignment = mp->m_dalign;
+				atype = args.type;
+				isaligned = 1;
+				/*
+				 * Adjust for alignment
+				 */
+				if (blen > args.alignment && blen <= ap->alen)
+					args.minlen = blen - args.alignment;
+				args.minalignslop = 0;
+			} else {
+				/*
+				 * First try an exact bno allocation.
+				 * If it fails then do a near or start bno
+				 * allocation with alignment turned on.
+				 */
+				atype = args.type;
+				tryagain = 1;
+				args.type = XFS_ALLOCTYPE_THIS_BNO;
+				args.alignment = 1;
+				/*
+				 * Compute the minlen+alignment for the
+				 * next case.  Set slop so that the value
+				 * of minlen+alignment+slop doesn't go up
+				 * between the calls.
+				 */
+				if (blen > mp->m_dalign && blen <= ap->alen)
+					nextminlen = blen - mp->m_dalign;
+				else
+					nextminlen = args.minlen;
+				if (nextminlen + mp->m_dalign > args.minlen + 1)
+					args.minalignslop =
+						nextminlen + mp->m_dalign -
+						args.minlen - 1;
+				else
+					args.minalignslop = 0;
+			}
+		} else {
+			args.alignment = 1;
+			args.minalignslop = 0;
+		}
+		args.minleft = ap->minleft;
+		args.wasdel = ap->wasdel;
+		args.isfl = 0;
+		args.userdata = ap->userdata;
+		if ((error = xfs_alloc_vextent(&args)))
+			return error;
+		if (tryagain && args.fsbno == NULLFSBLOCK) {
+			/*
+			 * Exact allocation failed. Now try with alignment
+			 * turned on.
+			 */
+			args.type = atype;
+			args.fsbno = ap->rval;
+			args.alignment = mp->m_dalign;
+			args.minlen = nextminlen;
+			args.minalignslop = 0;
+			isaligned = 1;
+			if ((error = xfs_alloc_vextent(&args)))
+				return error;
+		}
+		if (isaligned && args.fsbno == NULLFSBLOCK) {
+			/*
+			 * allocation failed, so turn off alignment and
+			 * try again.
+			 */
+			args.type = atype;
+			args.fsbno = ap->rval;
+			args.alignment = 0;
+			if ((error = xfs_alloc_vextent(&args)))
+				return error;
+		}
+		if (args.fsbno == NULLFSBLOCK && nullfb &&
+		    args.minlen > ap->minlen) {
+			args.minlen = ap->minlen;
+			args.type = XFS_ALLOCTYPE_START_BNO;
+			args.fsbno = ap->rval;
+			if ((error = xfs_alloc_vextent(&args)))
+				return error;
+		}
+		if (args.fsbno == NULLFSBLOCK && nullfb) {
+			args.fsbno = 0;
+			args.type = XFS_ALLOCTYPE_FIRST_AG;
+			args.total = ap->minlen;
+			args.minleft = 0;
+			if ((error = xfs_alloc_vextent(&args)))
+				return error;
+			ap->low = 1;
+		}
+		if (args.fsbno != NULLFSBLOCK) {
+			ap->firstblock = ap->rval = args.fsbno;
+			ASSERT(nullfb || fb_agno == args.agno ||
+			       (ap->low && fb_agno < args.agno));
+			ap->alen = args.len;
+			ap->ip->i_d.di_nblocks += args.len;
+			xfs_trans_log_inode(ap->tp, ap->ip, XFS_ILOG_CORE);
+			if (ap->wasdel)
+				ap->ip->i_delayed_blks -= args.len;
+			/*
+			 * Adjust the disk quota also. This was reserved
+			 * earlier.
+			 */
+			XFS_TRANS_MOD_DQUOT_BYINO(mp, ap->tp, ap->ip,
+				ap->wasdel ? XFS_TRANS_DQ_DELBCOUNT :
+						XFS_TRANS_DQ_BCOUNT,
+				(long) args.len);
+		} else {
+			ap->rval = NULLFSBLOCK;
+			ap->alen = 0;
+		}
+	}
+	return 0;
+#undef	ISVALID
+}
+
+/*
+ * Transform a btree format file with only one leaf node, where the
+ * extents list will fit in the inode, into an extents format file.
+ * Since the extent list is already in-core, all we have to do is
+ * give up the space for the btree root and pitch the leaf block.
+ */
+STATIC int				/* error */
+xfs_bmap_btree_to_extents(
+	xfs_trans_t		*tp,	/* transaction pointer */
+	xfs_inode_t		*ip,	/* incore inode pointer */
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			*logflagsp, /* inode logging flags */
+	int			whichfork)  /* data or attr fork */
+{
+	/* REFERENCED */
+	xfs_bmbt_block_t	*cblock;/* child btree block */
+	xfs_fsblock_t		cbno;	/* child block number */
+	xfs_buf_t		*cbp;	/* child block's buffer */
+	int			error;	/* error return value */
+	xfs_ifork_t		*ifp;	/* inode fork data */
+	xfs_mount_t		*mp;	/* mount point structure */
+	xfs_bmbt_ptr_t		*pp;	/* ptr to block address */
+	xfs_bmbt_block_t	*rblock;/* root btree block */
+
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	ASSERT(ifp->if_flags & XFS_IFEXTENTS);
+	ASSERT(XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_BTREE);
+	rblock = ifp->if_broot;
+	ASSERT(INT_GET(rblock->bb_level, ARCH_CONVERT) == 1);
+	ASSERT(INT_GET(rblock->bb_numrecs, ARCH_CONVERT) == 1);
+	ASSERT(XFS_BMAP_BROOT_MAXRECS(ifp->if_broot_bytes) == 1);
+	mp = ip->i_mount;
+	pp = XFS_BMAP_BROOT_PTR_ADDR(rblock, 1, ifp->if_broot_bytes);
+	*logflagsp = 0;
+#ifdef DEBUG
+	if ((error = xfs_btree_check_lptr(cur, INT_GET(*pp, ARCH_CONVERT), 1)))
+		return error;
+#endif
+	cbno = INT_GET(*pp, ARCH_CONVERT);
+	if ((error = xfs_btree_read_bufl(mp, tp, cbno, 0, &cbp,
+			XFS_BMAP_BTREE_REF)))
+		return error;
+	cblock = XFS_BUF_TO_BMBT_BLOCK(cbp);
+	if ((error = xfs_btree_check_lblock(cur, cblock, 0, cbp)))
+		return error;
+	xfs_bmap_add_free(cbno, 1, cur->bc_private.b.flist, mp);
+	ip->i_d.di_nblocks--;
+	XFS_TRANS_MOD_DQUOT_BYINO(mp, tp, ip, XFS_TRANS_DQ_BCOUNT, -1L);
+	xfs_trans_binval(tp, cbp);
+	if (cur->bc_bufs[0] == cbp)
+		cur->bc_bufs[0] = NULL;
+	xfs_iroot_realloc(ip, -1, whichfork);
+	ASSERT(ifp->if_broot == NULL);
+	ASSERT((ifp->if_flags & XFS_IFBROOT) == 0);
+	XFS_IFORK_FMT_SET(ip, whichfork, XFS_DINODE_FMT_EXTENTS);
+	*logflagsp = XFS_ILOG_CORE | XFS_ILOG_FEXT(whichfork);
+	return 0;
+}
+
+/*
+ * Called by xfs_bmapi to update extent list structure and the btree
+ * after removing space (or undoing a delayed allocation).
+ */
+STATIC int				/* error */
+xfs_bmap_del_extent(
+	xfs_inode_t		*ip,	/* incore inode pointer */
+	xfs_trans_t		*tp,	/* current transaction pointer */
+	xfs_extnum_t		idx,	/* extent number to update/delete */
+	xfs_bmap_free_t		*flist,	/* list of extents to be freed */
+	xfs_btree_cur_t		*cur,	/* if null, not a btree */
+	xfs_bmbt_irec_t		*del,	/* data to remove from extent list */
+	int			*logflagsp, /* inode logging flags */
+	int			whichfork, /* data or attr fork */
+	int			rsvd)	/* OK to allocate reserved blocks */
+{
+	xfs_filblks_t		da_new;	/* new delay-alloc indirect blocks */
+	xfs_filblks_t		da_old;	/* old delay-alloc indirect blocks */
+	xfs_fsblock_t		del_endblock=0;	/* first block past del */
+	xfs_fileoff_t		del_endoff;	/* first offset past del */
+	int			delay;	/* current block is delayed allocated */
+	int			do_fx;	/* free extent at end of routine */
+	xfs_bmbt_rec_t		*ep;	/* current extent entry pointer */
+	int			error;	/* error return value */
+	int			flags;	/* inode logging flags */
+#ifdef XFS_BMAP_TRACE
+	static char		fname[] = "xfs_bmap_del_extent";
+#endif
+	xfs_bmbt_irec_t		got;	/* current extent entry */
+	xfs_fileoff_t		got_endoff;	/* first offset past got */
+	int			i;	/* temp state */
+	xfs_ifork_t		*ifp;	/* inode fork pointer */
+	xfs_mount_t		*mp;	/* mount structure */
+	xfs_filblks_t		nblks;	/* quota/sb block count */
+	xfs_bmbt_irec_t		new;	/* new record to be inserted */
+	/* REFERENCED */
+	xfs_extnum_t		nextents;	/* number of extents in list */
+	uint			qfield;	/* quota field to update */
+	xfs_filblks_t		temp;	/* for indirect length calculations */
+	xfs_filblks_t		temp2;	/* for indirect length calculations */
+
+	XFS_STATS_INC(xs_del_exlist);
+	mp = ip->i_mount;
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+	ASSERT(idx >= 0 && idx < nextents);
+	ASSERT(del->br_blockcount > 0);
+	ep = &ifp->if_u1.if_extents[idx];
+	xfs_bmbt_get_all(ep, &got);
+	ASSERT(got.br_startoff <= del->br_startoff);
+	del_endoff = del->br_startoff + del->br_blockcount;
+	got_endoff = got.br_startoff + got.br_blockcount;
+	ASSERT(got_endoff >= del_endoff);
+	delay = ISNULLSTARTBLOCK(got.br_startblock);
+	ASSERT(ISNULLSTARTBLOCK(del->br_startblock) == delay);
+	flags = 0;
+	qfield = 0;
+	error = 0;
+	/*
+	 * If deleting a real allocation, must free up the disk space.
+	 */
+	if (!delay) {
+		flags = XFS_ILOG_CORE;
+		/*
+		 * Realtime allocation.  Free it and record di_nblocks update.
+		 */
+		if (whichfork == XFS_DATA_FORK &&
+		    (ip->i_d.di_flags & XFS_DIFLAG_REALTIME)) {
+			xfs_fsblock_t	bno;
+			xfs_filblks_t	len;
+
+			ASSERT(do_mod(del->br_blockcount,
+				      mp->m_sb.sb_rextsize) == 0);
+			ASSERT(do_mod(del->br_startblock,
+				      mp->m_sb.sb_rextsize) == 0);
+			bno = del->br_startblock;
+			len = del->br_blockcount;
+			do_div(bno, mp->m_sb.sb_rextsize);
+			do_div(len, mp->m_sb.sb_rextsize);
+			if ((error = xfs_rtfree_extent(ip->i_transp, bno,
+					(xfs_extlen_t)len)))
+				goto done;
+			do_fx = 0;
+			nblks = len * mp->m_sb.sb_rextsize;
+			qfield = XFS_TRANS_DQ_RTBCOUNT;
+		}
+		/*
+		 * Ordinary allocation.
+		 */
+		else {
+			do_fx = 1;
+			nblks = del->br_blockcount;
+			qfield = XFS_TRANS_DQ_BCOUNT;
+		}
+		/*
+		 * Set up del_endblock and cur for later.
+		 */
+		del_endblock = del->br_startblock + del->br_blockcount;
+		if (cur) {
+			if ((error = xfs_bmbt_lookup_eq(cur, got.br_startoff,
+					got.br_startblock, got.br_blockcount,
+					&i)))
+				goto done;
+			ASSERT(i == 1);
+		}
+		da_old = da_new = 0;
+	} else {
+		da_old = STARTBLOCKVAL(got.br_startblock);
+		da_new = 0;
+		nblks = 0;
+		do_fx = 0;
+	}
+	/*
+	 * Set flag value to use in switch statement.
+	 * Left-contig is 2, right-contig is 1.
+	 */
+	switch (((got.br_startoff == del->br_startoff) << 1) |
+		(got_endoff == del_endoff)) {
+	case 3:
+		/*
+		 * Matches the whole extent.  Delete the entry.
+		 */
+		xfs_bmap_trace_delete(fname, "3", ip, idx, 1, whichfork);
+		xfs_bmap_delete_exlist(ip, idx, 1, whichfork);
+		ifp->if_lastex = idx;
+		if (delay)
+			break;
+		XFS_IFORK_NEXT_SET(ip, whichfork,
+			XFS_IFORK_NEXTENTS(ip, whichfork) - 1);
+		flags |= XFS_ILOG_CORE;
+		if (!cur) {
+			flags |= XFS_ILOG_FEXT(whichfork);
+			break;
+		}
+		if ((error = xfs_bmbt_delete(cur, &i)))
+			goto done;
+		ASSERT(i == 1);
+		break;
+
+	case 2:
+		/*
+		 * Deleting the first part of the extent.
+		 */
+		xfs_bmap_trace_pre_update(fname, "2", ip, idx, whichfork);
+		xfs_bmbt_set_startoff(ep, del_endoff);
+		temp = got.br_blockcount - del->br_blockcount;
+		xfs_bmbt_set_blockcount(ep, temp);
+		ifp->if_lastex = idx;
+		if (delay) {
+			temp = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip, temp),
+				da_old);
+			xfs_bmbt_set_startblock(ep, NULLSTARTBLOCK((int)temp));
+			xfs_bmap_trace_post_update(fname, "2", ip, idx,
+				whichfork);
+			da_new = temp;
+			break;
+		}
+		xfs_bmbt_set_startblock(ep, del_endblock);
+		xfs_bmap_trace_post_update(fname, "2", ip, idx, whichfork);
+		if (!cur) {
+			flags |= XFS_ILOG_FEXT(whichfork);
+			break;
+		}
+		if ((error = xfs_bmbt_update(cur, del_endoff, del_endblock,
+				got.br_blockcount - del->br_blockcount,
+				got.br_state)))
+			goto done;
+		break;
+
+	case 1:
+		/*
+		 * Deleting the last part of the extent.
+		 */
+		temp = got.br_blockcount - del->br_blockcount;
+		xfs_bmap_trace_pre_update(fname, "1", ip, idx, whichfork);
+		xfs_bmbt_set_blockcount(ep, temp);
+		ifp->if_lastex = idx;
+		if (delay) {
+			temp = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip, temp),
+				da_old);
+			xfs_bmbt_set_startblock(ep, NULLSTARTBLOCK((int)temp));
+			xfs_bmap_trace_post_update(fname, "1", ip, idx,
+				whichfork);
+			da_new = temp;
+			break;
+		}
+		xfs_bmap_trace_post_update(fname, "1", ip, idx, whichfork);
+		if (!cur) {
+			flags |= XFS_ILOG_FEXT(whichfork);
+			break;
+		}
+		if ((error = xfs_bmbt_update(cur, got.br_startoff,
+				got.br_startblock,
+				got.br_blockcount - del->br_blockcount,
+				got.br_state)))
+			goto done;
+		break;
+
+	case 0:
+		/*
+		 * Deleting the middle of the extent.
+		 */
+		temp = del->br_startoff - got.br_startoff;
+		xfs_bmap_trace_pre_update(fname, "0", ip, idx, whichfork);
+		xfs_bmbt_set_blockcount(ep, temp);
+		new.br_startoff = del_endoff;
+		temp2 = got_endoff - del_endoff;
+		new.br_blockcount = temp2;
+		new.br_state = got.br_state;
+		if (!delay) {
+			new.br_startblock = del_endblock;
+			flags |= XFS_ILOG_CORE;
+			if (cur) {
+				if ((error = xfs_bmbt_update(cur,
+						got.br_startoff,
+						got.br_startblock, temp,
+						got.br_state)))
+					goto done;
+				if ((error = xfs_bmbt_increment(cur, 0, &i)))
+					goto done;
+				cur->bc_rec.b = new;
+				error = xfs_bmbt_insert(cur, &i);
+				if (error && error != ENOSPC)
+					goto done;
+				/*
+				 * If get no-space back from btree insert,
+				 * it tried a split, and we have a zero
+				 * block reservation.
+				 * Fix up our state and return the error.
+				 */
+				if (error == ENOSPC) {
+					/*
+					 * Reset the cursor, don't trust
+					 * it after any insert operation.
+					 */
+					if ((error = xfs_bmbt_lookup_eq(cur,
+							got.br_startoff,
+							got.br_startblock,
+							temp, &i)))
+						goto done;
+					ASSERT(i == 1);
+					/*
+					 * Update the btree record back
+					 * to the original value.
+					 */
+					if ((error = xfs_bmbt_update(cur,
+							got.br_startoff,
+							got.br_startblock,
+							got.br_blockcount,
+							got.br_state)))
+						goto done;
+					/*
+					 * Reset the extent record back
+					 * to the original value.
+					 */
+					xfs_bmbt_set_blockcount(ep,
+						got.br_blockcount);
+					flags = 0;
+					error = XFS_ERROR(ENOSPC);
+					goto done;
+				}
+				ASSERT(i == 1);
+			} else
+				flags |= XFS_ILOG_FEXT(whichfork);
+			XFS_IFORK_NEXT_SET(ip, whichfork,
+				XFS_IFORK_NEXTENTS(ip, whichfork) + 1);
+		} else {
+			ASSERT(whichfork == XFS_DATA_FORK);
+			temp = xfs_bmap_worst_indlen(ip, temp);
+			xfs_bmbt_set_startblock(ep, NULLSTARTBLOCK((int)temp));
+			temp2 = xfs_bmap_worst_indlen(ip, temp2);
+			new.br_startblock = NULLSTARTBLOCK((int)temp2);
+			da_new = temp + temp2;
+			while (da_new > da_old) {
+				if (temp) {
+					temp--;
+					da_new--;
+					xfs_bmbt_set_startblock(ep,
+						NULLSTARTBLOCK((int)temp));
+				}
+				if (da_new == da_old)
+					break;
+				if (temp2) {
+					temp2--;
+					da_new--;
+					new.br_startblock =
+						NULLSTARTBLOCK((int)temp2);
+				}
+			}
+		}
+		xfs_bmap_trace_post_update(fname, "0", ip, idx, whichfork);
+		xfs_bmap_trace_insert(fname, "0", ip, idx + 1, 1, &new, NULL,
+			whichfork);
+		xfs_bmap_insert_exlist(ip, idx + 1, 1, &new, whichfork);
+		ifp->if_lastex = idx + 1;
+		break;
+	}
+	/*
+	 * If we need to, add to list of extents to delete.
+	 */
+	if (do_fx)
+		xfs_bmap_add_free(del->br_startblock, del->br_blockcount, flist,
+			mp);
+	/*
+	 * Adjust inode # blocks in the file.
+	 */
+	if (nblks)
+		ip->i_d.di_nblocks -= nblks;
+	/*
+	 * Adjust quota data.
+	 */
+	if (qfield)
+		XFS_TRANS_MOD_DQUOT_BYINO(mp, tp, ip, qfield, (long)-nblks);
+
+	/*
+	 * Account for change in delayed indirect blocks.
+	 * Nothing to do for disk quota accounting here.
+	 */
+	ASSERT(da_old >= da_new);
+	if (da_old > da_new)
+		xfs_mod_incore_sb(mp, XFS_SBS_FDBLOCKS, (int)(da_old - da_new),
+			rsvd);
+done:
+	*logflagsp = flags;
+	return error;
+}
+
+/*
+ * Remove the entry "free" from the free item list.  Prev points to the
+ * previous entry, unless "free" is the head of the list.
+ */
+STATIC void
+xfs_bmap_del_free(
+	xfs_bmap_free_t		*flist,	/* free item list header */
+	xfs_bmap_free_item_t	*prev,	/* previous item on list, if any */
+	xfs_bmap_free_item_t	*free)	/* list item to be freed */
+{
+	if (prev)
+		prev->xbfi_next = free->xbfi_next;
+	else
+		flist->xbf_first = free->xbfi_next;
+	flist->xbf_count--;
+	kmem_zone_free(xfs_bmap_free_item_zone, free);
+}
+
+/*
+ * Remove count entries from the extents array for inode "ip", starting
+ * at index "idx".  Copies the remaining items down over the deleted ones,
+ * and gives back the excess memory.
+ */
+STATIC void
+xfs_bmap_delete_exlist(
+	xfs_inode_t	*ip,		/* incore inode pointer */
+	xfs_extnum_t	idx,		/* starting delete index */
+	xfs_extnum_t	count,		/* count of items to delete */
+	int		whichfork)	/* data or attr fork */
+{
+	xfs_bmbt_rec_t	*base;		/* base of extent list */
+	xfs_ifork_t	*ifp;		/* inode fork pointer */
+	xfs_extnum_t	nextents;	/* number of extents in list after */
+
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	ASSERT(ifp->if_flags & XFS_IFEXTENTS);
+	base = ifp->if_u1.if_extents;
+	nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t) - count;
+	memmove(&base[idx], &base[idx + count],
+		(nextents - idx) * sizeof(*base));
+	xfs_iext_realloc(ip, -count, whichfork);
+}
+
+/*
+ * Convert an extents-format file into a btree-format file.
+ * The new file will have a root block (in the inode) and a single child block.
+ */
+STATIC int					/* error */
+xfs_bmap_extents_to_btree(
+	xfs_trans_t		*tp,		/* transaction pointer */
+	xfs_inode_t		*ip,		/* incore inode pointer */
+	xfs_fsblock_t		*firstblock,	/* first-block-allocated */
+	xfs_bmap_free_t		*flist,		/* blocks freed in xaction */
+	xfs_btree_cur_t		**curp,		/* cursor returned to caller */
+	int			wasdel,		/* converting a delayed alloc */
+	int			*logflagsp,	/* inode logging flags */
+	int			whichfork)	/* data or attr fork */
+{
+	xfs_bmbt_block_t	*ablock;	/* allocated (child) bt block */
+	xfs_buf_t		*abp;		/* buffer for ablock */
+	xfs_alloc_arg_t		args;		/* allocation arguments */
+	xfs_bmbt_rec_t		*arp;		/* child record pointer */
+	xfs_bmbt_block_t	*block;		/* btree root block */
+	xfs_btree_cur_t		*cur;		/* bmap btree cursor */
+	xfs_bmbt_rec_t		*ep;		/* extent list pointer */
+	int			error;		/* error return value */
+	xfs_extnum_t		i, cnt;		/* extent list index */
+	xfs_ifork_t		*ifp;		/* inode fork pointer */
+	xfs_bmbt_key_t		*kp;		/* root block key pointer */
+	xfs_mount_t		*mp;		/* mount structure */
+	xfs_extnum_t		nextents;	/* extent list size */
+	xfs_bmbt_ptr_t		*pp;		/* root block address pointer */
+
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	ASSERT(XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_EXTENTS);
+	ASSERT(ifp->if_ext_max ==
+	       XFS_IFORK_SIZE(ip, whichfork) / (uint)sizeof(xfs_bmbt_rec_t));
+	/*
+	 * Make space in the inode incore.
+	 */
+	xfs_iroot_realloc(ip, 1, whichfork);
+	ifp->if_flags |= XFS_IFBROOT;
+	/*
+	 * Fill in the root.
+	 */
+	block = ifp->if_broot;
+	INT_SET(block->bb_magic, ARCH_CONVERT, XFS_BMAP_MAGIC);
+	INT_SET(block->bb_level, ARCH_CONVERT, 1);
+	INT_SET(block->bb_numrecs, ARCH_CONVERT, 1);
+	INT_SET(block->bb_leftsib, ARCH_CONVERT, NULLDFSBNO);
+	INT_SET(block->bb_rightsib, ARCH_CONVERT, NULLDFSBNO);
+	/*
+	 * Need a cursor.  Can't allocate until bb_level is filled in.
+	 */
+	mp = ip->i_mount;
+	cur = xfs_btree_init_cursor(mp, tp, NULL, 0, XFS_BTNUM_BMAP, ip,
+		whichfork);
+	cur->bc_private.b.firstblock = *firstblock;
+	cur->bc_private.b.flist = flist;
+	cur->bc_private.b.flags = wasdel ? XFS_BTCUR_BPRV_WASDEL : 0;
+	/*
+	 * Convert to a btree with two levels, one record in root.
+	 */
+	XFS_IFORK_FMT_SET(ip, whichfork, XFS_DINODE_FMT_BTREE);
+	args.tp = tp;
+	args.mp = mp;
+	if (*firstblock == NULLFSBLOCK) {
+		args.type = XFS_ALLOCTYPE_START_BNO;
+		args.fsbno = XFS_INO_TO_FSB(mp, ip->i_ino);
+	} else if (flist->xbf_low) {
+		args.type = XFS_ALLOCTYPE_START_BNO;
+		args.fsbno = *firstblock;
+	} else {
+		args.type = XFS_ALLOCTYPE_NEAR_BNO;
+		args.fsbno = *firstblock;
+	}
+	args.minlen = args.maxlen = args.prod = 1;
+	args.total = args.minleft = args.alignment = args.mod = args.isfl =
+		args.minalignslop = 0;
+	args.wasdel = wasdel;
+	*logflagsp = 0;
+	if ((error = xfs_alloc_vextent(&args))) {
+		xfs_iroot_realloc(ip, -1, whichfork);
+		xfs_btree_del_cursor(cur, XFS_BTREE_ERROR);
+		return error;
+	}
+	/*
+	 * Allocation can't fail, the space was reserved.
+	 */
+	ASSERT(args.fsbno != NULLFSBLOCK);
+	ASSERT(*firstblock == NULLFSBLOCK ||
+	       args.agno == XFS_FSB_TO_AGNO(mp, *firstblock) ||
+	       (flist->xbf_low &&
+		args.agno > XFS_FSB_TO_AGNO(mp, *firstblock)));
+	*firstblock = cur->bc_private.b.firstblock = args.fsbno;
+	cur->bc_private.b.allocated++;
+	ip->i_d.di_nblocks++;
+	XFS_TRANS_MOD_DQUOT_BYINO(mp, tp, ip, XFS_TRANS_DQ_BCOUNT, 1L);
+	abp = xfs_btree_get_bufl(mp, tp, args.fsbno, 0);
+	/*
+	 * Fill in the child block.
+	 */
+	ablock = XFS_BUF_TO_BMBT_BLOCK(abp);
+	INT_SET(ablock->bb_magic, ARCH_CONVERT, XFS_BMAP_MAGIC);
+	INT_ZERO(ablock->bb_level, ARCH_CONVERT);
+	INT_SET(ablock->bb_leftsib, ARCH_CONVERT, NULLDFSBNO);
+	INT_SET(ablock->bb_rightsib, ARCH_CONVERT, NULLDFSBNO);
+	arp = XFS_BMAP_REC_IADDR(ablock, 1, cur);
+	nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+	for (ep = ifp->if_u1.if_extents, cnt = i = 0; i < nextents; i++, ep++) {
+		if (!ISNULLSTARTBLOCK(xfs_bmbt_get_startblock(ep))) {
+			arp->l0 = INT_GET(ep->l0, ARCH_CONVERT);
+			arp->l1 = INT_GET(ep->l1, ARCH_CONVERT);
+			arp++; cnt++;
+		}
+	}
+	INT_SET(ablock->bb_numrecs, ARCH_CONVERT, cnt);
+	ASSERT(INT_GET(ablock->bb_numrecs, ARCH_CONVERT) == XFS_IFORK_NEXTENTS(ip, whichfork));
+	/*
+	 * Fill in the root key and pointer.
+	 */
+	kp = XFS_BMAP_KEY_IADDR(block, 1, cur);
+	arp = XFS_BMAP_REC_IADDR(ablock, 1, cur);
+	INT_SET(kp->br_startoff, ARCH_CONVERT, xfs_bmbt_disk_get_startoff(arp));
+	pp = XFS_BMAP_PTR_IADDR(block, 1, cur);
+	INT_SET(*pp, ARCH_CONVERT, args.fsbno);
+	/*
+	 * Do all this logging at the end so that
+	 * the root is at the right level.
+	 */
+	xfs_bmbt_log_block(cur, abp, XFS_BB_ALL_BITS);
+	xfs_bmbt_log_recs(cur, abp, 1, INT_GET(ablock->bb_numrecs, ARCH_CONVERT));
+	ASSERT(*curp == NULL);
+	*curp = cur;
+	*logflagsp = XFS_ILOG_CORE | XFS_ILOG_FBROOT(whichfork);
+	return 0;
+}
+
+/*
+ * Insert new item(s) in the extent list for inode "ip".
+ * Count new items are inserted at offset idx.
+ */
+STATIC void
+xfs_bmap_insert_exlist(
+	xfs_inode_t	*ip,		/* incore inode pointer */
+	xfs_extnum_t	idx,		/* starting index of new items */
+	xfs_extnum_t	count,		/* number of inserted items */
+	xfs_bmbt_irec_t	*new,		/* items to insert */
+	int		whichfork)	/* data or attr fork */
+{
+	xfs_bmbt_rec_t	*base;		/* extent list base */
+	xfs_ifork_t	*ifp;		/* inode fork pointer */
+	xfs_extnum_t	nextents;	/* extent list size */
+	xfs_extnum_t	to;		/* extent list index */
+
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	ASSERT(ifp->if_flags & XFS_IFEXTENTS);
+	xfs_iext_realloc(ip, count, whichfork);
+	base = ifp->if_u1.if_extents;
+	nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+	memmove(&base[idx + count], &base[idx],
+		(nextents - (idx + count)) * sizeof(*base));
+	for (to = idx; to < idx + count; to++, new++)
+		xfs_bmbt_set_all(&base[to], new);
+}
+
+/*
+ * Convert a local file to an extents file.
+ * This code is out of bounds for data forks of regular files,
+ * since the file data needs to get logged so things will stay consistent.
+ * (The bmap-level manipulations are ok, though).
+ */
+STATIC int				/* error */
+xfs_bmap_local_to_extents(
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_inode_t	*ip,		/* incore inode pointer */
+	xfs_fsblock_t	*firstblock,	/* first block allocated in xaction */
+	xfs_extlen_t	total,		/* total blocks needed by transaction */
+	int		*logflagsp,	/* inode logging flags */
+	int		whichfork)	/* data or attr fork */
+{
+	int		error;		/* error return value */
+	int		flags;		/* logging flags returned */
+#ifdef XFS_BMAP_TRACE
+	static char	fname[] = "xfs_bmap_local_to_extents";
+#endif
+	xfs_ifork_t	*ifp;		/* inode fork pointer */
+
+	/*
+	 * We don't want to deal with the case of keeping inode data inline yet.
+	 * So sending the data fork of a regular inode is invalid.
+	 */
+	ASSERT(!((ip->i_d.di_mode & S_IFMT) == S_IFREG &&
+		 whichfork == XFS_DATA_FORK));
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	ASSERT(XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_LOCAL);
+	flags = 0;
+	error = 0;
+	if (ifp->if_bytes) {
+		xfs_alloc_arg_t	args;	/* allocation arguments */
+		xfs_buf_t	*bp;	/* buffer for extent list block */
+		xfs_bmbt_rec_t	*ep;	/* extent list pointer */
+
+		args.tp = tp;
+		args.mp = ip->i_mount;
+		ASSERT(ifp->if_flags & XFS_IFINLINE);
+		/*
+		 * Allocate a block.  We know we need only one, since the
+		 * file currently fits in an inode.
+		 */
+		if (*firstblock == NULLFSBLOCK) {
+			args.fsbno = XFS_INO_TO_FSB(args.mp, ip->i_ino);
+			args.type = XFS_ALLOCTYPE_START_BNO;
+		} else {
+			args.fsbno = *firstblock;
+			args.type = XFS_ALLOCTYPE_NEAR_BNO;
+		}
+		args.total = total;
+		args.mod = args.minleft = args.alignment = args.wasdel =
+			args.isfl = args.minalignslop = 0;
+		args.minlen = args.maxlen = args.prod = 1;
+		if ((error = xfs_alloc_vextent(&args)))
+			goto done;
+		/*
+		 * Can't fail, the space was reserved.
+		 */
+		ASSERT(args.fsbno != NULLFSBLOCK);
+		ASSERT(args.len == 1);
+		*firstblock = args.fsbno;
+		bp = xfs_btree_get_bufl(args.mp, tp, args.fsbno, 0);
+		memcpy((char *)XFS_BUF_PTR(bp), ifp->if_u1.if_data,
+			ifp->if_bytes);
+		xfs_trans_log_buf(tp, bp, 0, ifp->if_bytes - 1);
+		xfs_idata_realloc(ip, -ifp->if_bytes, whichfork);
+		xfs_iext_realloc(ip, 1, whichfork);
+		ep = ifp->if_u1.if_extents;
+		xfs_bmbt_set_allf(ep, 0, args.fsbno, 1, XFS_EXT_NORM);
+		xfs_bmap_trace_post_update(fname, "new", ip, 0, whichfork);
+		XFS_IFORK_NEXT_SET(ip, whichfork, 1);
+		ip->i_d.di_nblocks = 1;
+		XFS_TRANS_MOD_DQUOT_BYINO(args.mp, tp, ip,
+			XFS_TRANS_DQ_BCOUNT, 1L);
+		flags |= XFS_ILOG_FEXT(whichfork);
+	} else
+		ASSERT(XFS_IFORK_NEXTENTS(ip, whichfork) == 0);
+	ifp->if_flags &= ~XFS_IFINLINE;
+	ifp->if_flags |= XFS_IFEXTENTS;
+	XFS_IFORK_FMT_SET(ip, whichfork, XFS_DINODE_FMT_EXTENTS);
+	flags |= XFS_ILOG_CORE;
+done:
+	*logflagsp = flags;
+	return error;
+}
+
+xfs_bmbt_rec_t *			/* pointer to found extent entry */
+xfs_bmap_do_search_extents(
+	xfs_bmbt_rec_t	*base,		/* base of extent list */
+	xfs_extnum_t	lastx,		/* last extent index used */
+	xfs_extnum_t	nextents,	/* extent list size */
+	xfs_fileoff_t	bno,		/* block number searched for */
+	int		*eofp,		/* out: end of file found */
+	xfs_extnum_t	*lastxp,	/* out: last extent index */
+	xfs_bmbt_irec_t	*gotp,		/* out: extent entry found */
+	xfs_bmbt_irec_t	*prevp)		/* out: previous extent entry found */
+{
+	xfs_bmbt_rec_t	*ep;		/* extent list entry pointer */
+	xfs_bmbt_irec_t	got;		/* extent list entry, decoded */
+	int		high;		/* high index of binary search */
+	int		low;		/* low index of binary search */
+
+	/*
+	 * Initialize the extent entry structure to catch access to
+	 * uninitialized br_startblock field.
+	 */
+	got.br_startoff = 0xffa5a5a5a5a5a5a5LL;
+	got.br_blockcount = 0xa55a5a5a5a5a5a5aLL;
+	got.br_state = XFS_EXT_INVALID;
+
+#if XFS_BIG_BLKNOS
+	got.br_startblock = 0xffffa5a5a5a5a5a5LL;
+#else
+	got.br_startblock = 0xffffa5a5;
+#endif
+
+	if (lastx != NULLEXTNUM && lastx < nextents)
+		ep = base + lastx;
+	else
+		ep = NULL;
+	prevp->br_startoff = NULLFILEOFF;
+	if (ep && bno >= (got.br_startoff = xfs_bmbt_get_startoff(ep)) &&
+	    bno < got.br_startoff +
+		  (got.br_blockcount = xfs_bmbt_get_blockcount(ep)))
+		*eofp = 0;
+	else if (ep && lastx < nextents - 1 &&
+		 bno >= (got.br_startoff = xfs_bmbt_get_startoff(ep + 1)) &&
+		 bno < got.br_startoff +
+		       (got.br_blockcount = xfs_bmbt_get_blockcount(ep + 1))) {
+		lastx++;
+		ep++;
+		*eofp = 0;
+	} else if (nextents == 0)
+		*eofp = 1;
+	else if (bno == 0 &&
+		 (got.br_startoff = xfs_bmbt_get_startoff(base)) == 0) {
+		ep = base;
+		lastx = 0;
+		got.br_blockcount = xfs_bmbt_get_blockcount(ep);
+		*eofp = 0;
+	} else {
+		/* binary search the extents array */
+		low = 0;
+		high = nextents - 1;
+		while (low <= high) {
+			XFS_STATS_INC(xs_cmp_exlist);
+			lastx = (low + high) >> 1;
+			ep = base + lastx;
+			got.br_startoff = xfs_bmbt_get_startoff(ep);
+			got.br_blockcount = xfs_bmbt_get_blockcount(ep);
+			if (bno < got.br_startoff)
+				high = lastx - 1;
+			else if (bno >= got.br_startoff + got.br_blockcount)
+				low = lastx + 1;
+			else {
+				got.br_startblock = xfs_bmbt_get_startblock(ep);
+				got.br_state = xfs_bmbt_get_state(ep);
+				*eofp = 0;
+				*lastxp = lastx;
+				*gotp = got;
+				return ep;
+			}
+		}
+		if (bno >= got.br_startoff + got.br_blockcount) {
+			lastx++;
+			if (lastx == nextents) {
+				*eofp = 1;
+				got.br_startblock = xfs_bmbt_get_startblock(ep);
+				got.br_state = xfs_bmbt_get_state(ep);
+				*prevp = got;
+				ep = NULL;
+			} else {
+				*eofp = 0;
+				xfs_bmbt_get_all(ep, prevp);
+				ep++;
+				got.br_startoff = xfs_bmbt_get_startoff(ep);
+				got.br_blockcount = xfs_bmbt_get_blockcount(ep);
+			}
+		} else {
+			*eofp = 0;
+			if (ep > base)
+				xfs_bmbt_get_all(ep - 1, prevp);
+		}
+	}
+	if (ep) {
+		got.br_startblock = xfs_bmbt_get_startblock(ep);
+		got.br_state = xfs_bmbt_get_state(ep);
+	}
+	*lastxp = lastx;
+	*gotp = got;
+	return ep;
+}
+
+/*
+ * Search the extents list for the inode, for the extent containing bno.
+ * If bno lies in a hole, point to the next entry.  If bno lies past eof,
+ * *eofp will be set, and *prevp will contain the last entry (null if none).
+ * Else, *lastxp will be set to the index of the found
+ * entry; *gotp will contain the entry.
+ */
+STATIC xfs_bmbt_rec_t *                 /* pointer to found extent entry */
+xfs_bmap_search_extents(
+	xfs_inode_t     *ip,            /* incore inode pointer */
+	xfs_fileoff_t   bno,            /* block number searched for */
+	int             whichfork,      /* data or attr fork */
+	int             *eofp,          /* out: end of file found */
+	xfs_extnum_t    *lastxp,        /* out: last extent index */
+	xfs_bmbt_irec_t *gotp,          /* out: extent entry found */
+	xfs_bmbt_irec_t *prevp)         /* out: previous extent entry found */
+{
+	xfs_ifork_t	*ifp;		/* inode fork pointer */
+	xfs_bmbt_rec_t  *base;          /* base of extent list */
+	xfs_extnum_t    lastx;          /* last extent index used */
+	xfs_extnum_t    nextents;       /* extent list size */
+	xfs_bmbt_rec_t  *ep;            /* extent list entry pointer */
+	int		rt;		/* realtime flag    */
+
+	XFS_STATS_INC(xs_look_exlist);
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	lastx = ifp->if_lastex;
+	nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+	base = &ifp->if_u1.if_extents[0];
+
+	ep = xfs_bmap_do_search_extents(base, lastx, nextents, bno, eofp,
+					  lastxp, gotp, prevp);
+	rt = ip->i_d.di_flags & XFS_DIFLAG_REALTIME;
+	if(!rt && !gotp->br_startblock && (*lastxp != NULLEXTNUM)) {
+                cmn_err(CE_PANIC,"Access to block zero: fs: <%s> inode: %lld "
+			"start_block : %llx start_off : %llx blkcnt : %llx "
+			"extent-state : %x \n",
+			(ip->i_mount)->m_fsname,(long long)ip->i_ino,
+			gotp->br_startblock, gotp->br_startoff,
+			gotp->br_blockcount,gotp->br_state);
+        }
+        return ep;
+}
+
+
+#ifdef XFS_BMAP_TRACE
+ktrace_t	*xfs_bmap_trace_buf;
+
+/*
+ * Add a bmap trace buffer entry.  Base routine for the others.
+ */
+STATIC void
+xfs_bmap_trace_addentry(
+	int		opcode,		/* operation */
+	char		*fname,		/* function name */
+	char		*desc,		/* operation description */
+	xfs_inode_t	*ip,		/* incore inode pointer */
+	xfs_extnum_t	idx,		/* index of entry(ies) */
+	xfs_extnum_t	cnt,		/* count of entries, 1 or 2 */
+	xfs_bmbt_rec_t	*r1,		/* first record */
+	xfs_bmbt_rec_t	*r2,		/* second record or null */
+	int		whichfork)	/* data or attr fork */
+{
+	xfs_bmbt_rec_t	tr2;
+
+	ASSERT(cnt == 1 || cnt == 2);
+	ASSERT(r1 != NULL);
+	if (cnt == 1) {
+		ASSERT(r2 == NULL);
+		r2 = &tr2;
+		memset(&tr2, 0, sizeof(tr2));
+	} else
+		ASSERT(r2 != NULL);
+	ktrace_enter(xfs_bmap_trace_buf,
+		(void *)(__psint_t)(opcode | (whichfork << 16)),
+		(void *)fname, (void *)desc, (void *)ip,
+		(void *)(__psint_t)idx,
+		(void *)(__psint_t)cnt,
+		(void *)(__psunsigned_t)(ip->i_ino >> 32),
+		(void *)(__psunsigned_t)(unsigned)ip->i_ino,
+		(void *)(__psunsigned_t)(r1->l0 >> 32),
+		(void *)(__psunsigned_t)(unsigned)(r1->l0),
+		(void *)(__psunsigned_t)(r1->l1 >> 32),
+		(void *)(__psunsigned_t)(unsigned)(r1->l1),
+		(void *)(__psunsigned_t)(r2->l0 >> 32),
+		(void *)(__psunsigned_t)(unsigned)(r2->l0),
+		(void *)(__psunsigned_t)(r2->l1 >> 32),
+		(void *)(__psunsigned_t)(unsigned)(r2->l1)
+		);
+	ASSERT(ip->i_xtrace);
+	ktrace_enter(ip->i_xtrace,
+		(void *)(__psint_t)(opcode | (whichfork << 16)),
+		(void *)fname, (void *)desc, (void *)ip,
+		(void *)(__psint_t)idx,
+		(void *)(__psint_t)cnt,
+		(void *)(__psunsigned_t)(ip->i_ino >> 32),
+		(void *)(__psunsigned_t)(unsigned)ip->i_ino,
+		(void *)(__psunsigned_t)(r1->l0 >> 32),
+		(void *)(__psunsigned_t)(unsigned)(r1->l0),
+		(void *)(__psunsigned_t)(r1->l1 >> 32),
+		(void *)(__psunsigned_t)(unsigned)(r1->l1),
+		(void *)(__psunsigned_t)(r2->l0 >> 32),
+		(void *)(__psunsigned_t)(unsigned)(r2->l0),
+		(void *)(__psunsigned_t)(r2->l1 >> 32),
+		(void *)(__psunsigned_t)(unsigned)(r2->l1)
+		);
+}
+
+/*
+ * Add bmap trace entry prior to a call to xfs_bmap_delete_exlist.
+ */
+STATIC void
+xfs_bmap_trace_delete(
+	char		*fname,		/* function name */
+	char		*desc,		/* operation description */
+	xfs_inode_t	*ip,		/* incore inode pointer */
+	xfs_extnum_t	idx,		/* index of entry(entries) deleted */
+	xfs_extnum_t	cnt,		/* count of entries deleted, 1 or 2 */
+	int		whichfork)	/* data or attr fork */
+{
+	xfs_ifork_t	*ifp;		/* inode fork pointer */
+
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	xfs_bmap_trace_addentry(XFS_BMAP_KTRACE_DELETE, fname, desc, ip, idx,
+		cnt, &ifp->if_u1.if_extents[idx],
+		cnt == 2 ? &ifp->if_u1.if_extents[idx + 1] : NULL,
+		whichfork);
+}
+
+/*
+ * Add bmap trace entry prior to a call to xfs_bmap_insert_exlist, or
+ * reading in the extents list from the disk (in the btree).
+ */
+STATIC void
+xfs_bmap_trace_insert(
+	char		*fname,		/* function name */
+	char		*desc,		/* operation description */
+	xfs_inode_t	*ip,		/* incore inode pointer */
+	xfs_extnum_t	idx,		/* index of entry(entries) inserted */
+	xfs_extnum_t	cnt,		/* count of entries inserted, 1 or 2 */
+	xfs_bmbt_irec_t	*r1,		/* inserted record 1 */
+	xfs_bmbt_irec_t	*r2,		/* inserted record 2 or null */
+	int		whichfork)	/* data or attr fork */
+{
+	xfs_bmbt_rec_t	tr1;		/* compressed record 1 */
+	xfs_bmbt_rec_t	tr2;		/* compressed record 2 if needed */
+
+	xfs_bmbt_set_all(&tr1, r1);
+	if (cnt == 2) {
+		ASSERT(r2 != NULL);
+		xfs_bmbt_set_all(&tr2, r2);
+	} else {
+		ASSERT(cnt == 1);
+		ASSERT(r2 == NULL);
+	}
+	xfs_bmap_trace_addentry(XFS_BMAP_KTRACE_INSERT, fname, desc, ip, idx,
+		cnt, &tr1, cnt == 2 ? &tr2 : NULL, whichfork);
+}
+
+/*
+ * Add bmap trace entry after updating an extent list entry in place.
+ */
+STATIC void
+xfs_bmap_trace_post_update(
+	char		*fname,		/* function name */
+	char		*desc,		/* operation description */
+	xfs_inode_t	*ip,		/* incore inode pointer */
+	xfs_extnum_t	idx,		/* index of entry updated */
+	int		whichfork)	/* data or attr fork */
+{
+	xfs_ifork_t	*ifp;		/* inode fork pointer */
+
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	xfs_bmap_trace_addentry(XFS_BMAP_KTRACE_POST_UP, fname, desc, ip, idx,
+		1, &ifp->if_u1.if_extents[idx], NULL, whichfork);
+}
+
+/*
+ * Add bmap trace entry prior to updating an extent list entry in place.
+ */
+STATIC void
+xfs_bmap_trace_pre_update(
+	char		*fname,		/* function name */
+	char		*desc,		/* operation description */
+	xfs_inode_t	*ip,		/* incore inode pointer */
+	xfs_extnum_t	idx,		/* index of entry to be updated */
+	int		whichfork)	/* data or attr fork */
+{
+	xfs_ifork_t	*ifp;		/* inode fork pointer */
+
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	xfs_bmap_trace_addentry(XFS_BMAP_KTRACE_PRE_UP, fname, desc, ip, idx, 1,
+		&ifp->if_u1.if_extents[idx], NULL, whichfork);
+}
+#endif	/* XFS_BMAP_TRACE */
+
+/*
+ * Compute the worst-case number of indirect blocks that will be used
+ * for ip's delayed extent of length "len".
+ */
+STATIC xfs_filblks_t
+xfs_bmap_worst_indlen(
+	xfs_inode_t	*ip,		/* incore inode pointer */
+	xfs_filblks_t	len)		/* delayed extent length */
+{
+	int		level;		/* btree level number */
+	int		maxrecs;	/* maximum record count at this level */
+	xfs_mount_t	*mp;		/* mount structure */
+	xfs_filblks_t	rval;		/* return value */
+
+	mp = ip->i_mount;
+	maxrecs = mp->m_bmap_dmxr[0];
+	for (level = 0, rval = 0;
+	     level < XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK);
+	     level++) {
+		len += maxrecs - 1;
+		do_div(len, maxrecs);
+		rval += len;
+		if (len == 1)
+			return rval + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) -
+				level - 1;
+		if (level == 0)
+			maxrecs = mp->m_bmap_dmxr[1];
+	}
+	return rval;
+}
+
+#if defined(XFS_RW_TRACE)
+STATIC void
+xfs_bunmap_trace(
+	xfs_inode_t		*ip,
+	xfs_fileoff_t		bno,
+	xfs_filblks_t		len,
+	int			flags,
+	inst_t			*ra)
+{
+	if (ip->i_rwtrace == NULL)
+		return;
+	ktrace_enter(ip->i_rwtrace,
+		(void *)(__psint_t)XFS_BUNMAPI,
+		(void *)ip,
+		(void *)(__psint_t)((ip->i_d.di_size >> 32) & 0xffffffff),
+		(void *)(__psint_t)(ip->i_d.di_size & 0xffffffff),
+		(void *)(__psint_t)(((xfs_dfiloff_t)bno >> 32) & 0xffffffff),
+		(void *)(__psint_t)((xfs_dfiloff_t)bno & 0xffffffff),
+		(void *)(__psint_t)len,
+		(void *)(__psint_t)flags,
+		(void *)(unsigned long)current_cpu(),
+		(void *)ra,
+		(void *)0,
+		(void *)0,
+		(void *)0,
+		(void *)0,
+		(void *)0,
+		(void *)0);
+}
+#endif
+
+/*
+ * Convert inode from non-attributed to attributed.
+ * Must not be in a transaction, ip must not be locked.
+ */
+int						/* error code */
+xfs_bmap_add_attrfork(
+	xfs_inode_t		*ip,		/* incore inode pointer */
+	int			rsvd)		/* OK to allocated reserved blocks in trans */
+{
+	int			blks;		/* space reservation */
+	int			committed;	/* xaction was committed */
+	int			error;		/* error return value */
+	xfs_fsblock_t		firstblock;	/* 1st block/ag allocated */
+	xfs_bmap_free_t		flist;		/* freed extent list */
+	int			logflags;	/* logging flags */
+	xfs_mount_t		*mp;		/* mount structure */
+	unsigned long		s;		/* spinlock spl value */
+	xfs_trans_t		*tp;		/* transaction pointer */
+
+	ASSERT(ip->i_df.if_ext_max ==
+	       XFS_IFORK_DSIZE(ip) / (uint)sizeof(xfs_bmbt_rec_t));
+	if (XFS_IFORK_Q(ip))
+		return 0;
+	mp = ip->i_mount;
+	ASSERT(!XFS_NOT_DQATTACHED(mp, ip));
+	tp = xfs_trans_alloc(mp, XFS_TRANS_ADDAFORK);
+	blks = XFS_ADDAFORK_SPACE_RES(mp);
+	if (rsvd)
+		tp->t_flags |= XFS_TRANS_RESERVE;
+	if ((error = xfs_trans_reserve(tp, blks, XFS_ADDAFORK_LOG_RES(mp), 0,
+			XFS_TRANS_PERM_LOG_RES, XFS_ADDAFORK_LOG_COUNT)))
+		goto error0;
+	xfs_ilock(ip, XFS_ILOCK_EXCL);
+	error = XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, tp, ip, blks, 0, rsvd ?
+			XFS_QMOPT_RES_REGBLKS | XFS_QMOPT_FORCE_RES :
+			XFS_QMOPT_RES_REGBLKS);
+	if (error) {
+		xfs_iunlock(ip, XFS_ILOCK_EXCL);
+		xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES);
+		return error;
+	}
+	if (XFS_IFORK_Q(ip))
+		goto error1;
+	if (ip->i_d.di_aformat != XFS_DINODE_FMT_EXTENTS) {
+		/*
+		 * For inodes coming from pre-6.2 filesystems.
+		 */
+		ASSERT(ip->i_d.di_aformat == 0);
+		ip->i_d.di_aformat = XFS_DINODE_FMT_EXTENTS;
+	}
+	ASSERT(ip->i_d.di_anextents == 0);
+	VN_HOLD(XFS_ITOV(ip));
+	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+	switch (ip->i_d.di_format) {
+	case XFS_DINODE_FMT_DEV:
+		ip->i_d.di_forkoff = roundup(sizeof(xfs_dev_t), 8) >> 3;
+		break;
+	case XFS_DINODE_FMT_UUID:
+		ip->i_d.di_forkoff = roundup(sizeof(uuid_t), 8) >> 3;
+		break;
+	case XFS_DINODE_FMT_LOCAL:
+	case XFS_DINODE_FMT_EXTENTS:
+	case XFS_DINODE_FMT_BTREE:
+		ip->i_d.di_forkoff = mp->m_attroffset >> 3;
+		break;
+	default:
+		ASSERT(0);
+		error = XFS_ERROR(EINVAL);
+		goto error1;
+	}
+	ip->i_df.if_ext_max =
+		XFS_IFORK_DSIZE(ip) / (uint)sizeof(xfs_bmbt_rec_t);
+	ASSERT(ip->i_afp == NULL);
+	ip->i_afp = kmem_zone_zalloc(xfs_ifork_zone, KM_SLEEP);
+	ip->i_afp->if_ext_max =
+		XFS_IFORK_ASIZE(ip) / (uint)sizeof(xfs_bmbt_rec_t);
+	ip->i_afp->if_flags = XFS_IFEXTENTS;
+	logflags = 0;
+	XFS_BMAP_INIT(&flist, &firstblock);
+	switch (ip->i_d.di_format) {
+	case XFS_DINODE_FMT_LOCAL:
+		error = xfs_bmap_add_attrfork_local(tp, ip, &firstblock, &flist,
+			&logflags);
+		break;
+	case XFS_DINODE_FMT_EXTENTS:
+		error = xfs_bmap_add_attrfork_extents(tp, ip, &firstblock,
+			&flist, &logflags);
+		break;
+	case XFS_DINODE_FMT_BTREE:
+		error = xfs_bmap_add_attrfork_btree(tp, ip, &firstblock, &flist,
+			&logflags);
+		break;
+	default:
+		error = 0;
+		break;
+	}
+	if (logflags)
+		xfs_trans_log_inode(tp, ip, logflags);
+	if (error)
+		goto error2;
+	if (!XFS_SB_VERSION_HASATTR(&mp->m_sb)) {
+		s = XFS_SB_LOCK(mp);
+		if (!XFS_SB_VERSION_HASATTR(&mp->m_sb)) {
+			XFS_SB_VERSION_ADDATTR(&mp->m_sb);
+			XFS_SB_UNLOCK(mp, s);
+			xfs_mod_sb(tp, XFS_SB_VERSIONNUM);
+		} else
+			XFS_SB_UNLOCK(mp, s);
+	}
+	if ((error = xfs_bmap_finish(&tp, &flist, firstblock, &committed)))
+		goto error2;
+	error = xfs_trans_commit(tp, XFS_TRANS_PERM_LOG_RES, NULL);
+	ASSERT(ip->i_df.if_ext_max ==
+	       XFS_IFORK_DSIZE(ip) / (uint)sizeof(xfs_bmbt_rec_t));
+	return error;
+error2:
+	xfs_bmap_cancel(&flist);
+error1:
+	ASSERT(ismrlocked(&ip->i_lock,MR_UPDATE));
+	xfs_iunlock(ip, XFS_ILOCK_EXCL);
+error0:
+	xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_ABORT);
+	ASSERT(ip->i_df.if_ext_max ==
+	       XFS_IFORK_DSIZE(ip) / (uint)sizeof(xfs_bmbt_rec_t));
+	return error;
+}
+
+/*
+ * Add the extent to the list of extents to be free at transaction end.
+ * The list is maintained sorted (by block number).
+ */
+/* ARGSUSED */
+void
+xfs_bmap_add_free(
+	xfs_fsblock_t		bno,		/* fs block number of extent */
+	xfs_filblks_t		len,		/* length of extent */
+	xfs_bmap_free_t		*flist,		/* list of extents */
+	xfs_mount_t		*mp)		/* mount point structure */
+{
+	xfs_bmap_free_item_t	*cur;		/* current (next) element */
+	xfs_bmap_free_item_t	*new;		/* new element */
+	xfs_bmap_free_item_t	*prev;		/* previous element */
+#ifdef DEBUG
+	xfs_agnumber_t		agno;
+	xfs_agblock_t		agbno;
+
+	ASSERT(bno != NULLFSBLOCK);
+	ASSERT(len > 0);
+	ASSERT(len <= MAXEXTLEN);
+	ASSERT(!ISNULLSTARTBLOCK(bno));
+	agno = XFS_FSB_TO_AGNO(mp, bno);
+	agbno = XFS_FSB_TO_AGBNO(mp, bno);
+	ASSERT(agno < mp->m_sb.sb_agcount);
+	ASSERT(agbno < mp->m_sb.sb_agblocks);
+	ASSERT(len < mp->m_sb.sb_agblocks);
+	ASSERT(agbno + len <= mp->m_sb.sb_agblocks);
+#endif
+	ASSERT(xfs_bmap_free_item_zone != NULL);
+	new = kmem_zone_alloc(xfs_bmap_free_item_zone, KM_SLEEP);
+	new->xbfi_startblock = bno;
+	new->xbfi_blockcount = (xfs_extlen_t)len;
+	for (prev = NULL, cur = flist->xbf_first;
+	     cur != NULL;
+	     prev = cur, cur = cur->xbfi_next) {
+		if (cur->xbfi_startblock >= bno)
+			break;
+	}
+	if (prev)
+		prev->xbfi_next = new;
+	else
+		flist->xbf_first = new;
+	new->xbfi_next = cur;
+	flist->xbf_count++;
+}
+
+/*
+ * Compute and fill in the value of the maximum depth of a bmap btree
+ * in this filesystem.  Done once, during mount.
+ */
+void
+xfs_bmap_compute_maxlevels(
+	xfs_mount_t	*mp,		/* file system mount structure */
+	int		whichfork)	/* data or attr fork */
+{
+	int		level;		/* btree level */
+	uint		maxblocks;	/* max blocks at this level */
+	uint		maxleafents;	/* max leaf entries possible */
+	int		maxrootrecs;	/* max records in root block */
+	int		minleafrecs;	/* min records in leaf block */
+	int		minnoderecs;	/* min records in node block */
+	int		sz;		/* root block size */
+
+	/*
+	 * The maximum number of extents in a file, hence the maximum
+	 * number of leaf entries, is controlled by the type of di_nextents
+	 * (a signed 32-bit number, xfs_extnum_t), or by di_anextents
+	 * (a signed 16-bit number, xfs_aextnum_t).
+	 */
+	maxleafents = (whichfork == XFS_DATA_FORK) ? MAXEXTNUM : MAXAEXTNUM;
+	minleafrecs = mp->m_bmap_dmnr[0];
+	minnoderecs = mp->m_bmap_dmnr[1];
+	sz = (whichfork == XFS_DATA_FORK) ?
+		mp->m_attroffset :
+		mp->m_sb.sb_inodesize - mp->m_attroffset;
+	maxrootrecs = (int)XFS_BTREE_BLOCK_MAXRECS(sz, xfs_bmdr, 0);
+	maxblocks = (maxleafents + minleafrecs - 1) / minleafrecs;
+	for (level = 1; maxblocks > 1; level++) {
+		if (maxblocks <= maxrootrecs)
+			maxblocks = 1;
+		else
+			maxblocks = (maxblocks + minnoderecs - 1) / minnoderecs;
+	}
+	mp->m_bm_maxlevels[whichfork] = level;
+}
+
+/*
+ * Routine to be called at transaction's end by xfs_bmapi, xfs_bunmapi
+ * caller.  Frees all the extents that need freeing, which must be done
+ * last due to locking considerations.  We never free any extents in
+ * the first transaction.  This is to allow the caller to make the first
+ * transaction a synchronous one so that the pointers to the data being
+ * broken in this transaction will be permanent before the data is actually
+ * freed.  This is necessary to prevent blocks from being reallocated
+ * and written to before the free and reallocation are actually permanent.
+ * We do not just make the first transaction synchronous here, because
+ * there are more efficient ways to gain the same protection in some cases
+ * (see the file truncation code).
+ *
+ * Return 1 if the given transaction was committed and a new one
+ * started, and 0 otherwise in the committed parameter.
+ */
+/*ARGSUSED*/
+int						/* error */
+xfs_bmap_finish(
+	xfs_trans_t		**tp,		/* transaction pointer addr */
+	xfs_bmap_free_t		*flist,		/* i/o: list extents to free */
+	xfs_fsblock_t		firstblock,	/* controlled ag for allocs */
+	int			*committed)	/* xact committed or not */
+{
+	xfs_efd_log_item_t	*efd;		/* extent free data */
+	xfs_efi_log_item_t	*efi;		/* extent free intention */
+	int			error;		/* error return value */
+	xfs_bmap_free_item_t	*free;		/* free extent list item */
+	unsigned int		logres;		/* new log reservation */
+	unsigned int		logcount;	/* new log count */
+	xfs_mount_t		*mp;		/* filesystem mount structure */
+	xfs_bmap_free_item_t	*next;		/* next item on free list */
+	xfs_trans_t		*ntp;		/* new transaction pointer */
+
+	ASSERT((*tp)->t_flags & XFS_TRANS_PERM_LOG_RES);
+	if (flist->xbf_count == 0) {
+		*committed = 0;
+		return 0;
+	}
+	ntp = *tp;
+	efi = xfs_trans_get_efi(ntp, flist->xbf_count);
+	for (free = flist->xbf_first; free; free = free->xbfi_next)
+		xfs_trans_log_efi_extent(ntp, efi, free->xbfi_startblock,
+			free->xbfi_blockcount);
+	logres = ntp->t_log_res;
+	logcount = ntp->t_log_count;
+	ntp = xfs_trans_dup(*tp);
+	error = xfs_trans_commit(*tp, 0, NULL);
+	*tp = ntp;
+	*committed = 1;
+	/*
+	 * We have a new transaction, so we should return committed=1,
+	 * even though we're returning an error.
+	 */
+	if (error) {
+		return error;
+	}
+	if ((error = xfs_trans_reserve(ntp, 0, logres, 0, XFS_TRANS_PERM_LOG_RES,
+			logcount)))
+		return error;
+	efd = xfs_trans_get_efd(ntp, efi, flist->xbf_count);
+	for (free = flist->xbf_first; free != NULL; free = next) {
+		next = free->xbfi_next;
+		if ((error = xfs_free_extent(ntp, free->xbfi_startblock,
+				free->xbfi_blockcount))) {
+			/*
+			 * The bmap free list will be cleaned up at a
+			 * higher level.  The EFI will be canceled when
+			 * this transaction is aborted.
+			 * Need to force shutdown here to make sure it
+			 * happens, since this transaction may not be
+			 * dirty yet.
+			 */
+			mp = ntp->t_mountp;
+			if (!XFS_FORCED_SHUTDOWN(mp))
+				xfs_force_shutdown(mp,
+						   (error == EFSCORRUPTED) ?
+						   XFS_CORRUPT_INCORE :
+						   XFS_METADATA_IO_ERROR);
+			return error;
+		}
+		xfs_trans_log_efd_extent(ntp, efd, free->xbfi_startblock,
+			free->xbfi_blockcount);
+		xfs_bmap_del_free(flist, NULL, free);
+	}
+	return 0;
+}
+
+/*
+ * Free up any items left in the list.
+ */
+void
+xfs_bmap_cancel(
+	xfs_bmap_free_t		*flist)	/* list of bmap_free_items */
+{
+	xfs_bmap_free_item_t	*free;	/* free list item */
+	xfs_bmap_free_item_t	*next;
+
+	if (flist->xbf_count == 0)
+		return;
+	ASSERT(flist->xbf_first != NULL);
+	for (free = flist->xbf_first; free; free = next) {
+		next = free->xbfi_next;
+		xfs_bmap_del_free(flist, NULL, free);
+	}
+	ASSERT(flist->xbf_count == 0);
+}
+
+/*
+ * Returns the file-relative block number of the first unused block(s)
+ * in the file with at least "len" logically contiguous blocks free.
+ * This is the lowest-address hole if the file has holes, else the first block
+ * past the end of file.
+ * Return 0 if the file is currently local (in-inode).
+ */
+int						/* error */
+xfs_bmap_first_unused(
+	xfs_trans_t	*tp,			/* transaction pointer */
+	xfs_inode_t	*ip,			/* incore inode */
+	xfs_extlen_t	len,			/* size of hole to find */
+	xfs_fileoff_t	*first_unused,		/* unused block */
+	int		whichfork)		/* data or attr fork */
+{
+	xfs_bmbt_rec_t	*base;			/* base of extent array */
+	xfs_bmbt_rec_t	*ep;			/* pointer to an extent entry */
+	int		error;			/* error return value */
+	xfs_ifork_t	*ifp;			/* inode fork pointer */
+	xfs_fileoff_t	lastaddr;		/* last block number seen */
+	xfs_fileoff_t	lowest;			/* lowest useful block */
+	xfs_fileoff_t	max;			/* starting useful block */
+	xfs_fileoff_t	off;			/* offset for this block */
+	xfs_extnum_t	nextents;		/* number of extent entries */
+
+	ASSERT(XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_BTREE ||
+	       XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_EXTENTS ||
+	       XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_LOCAL);
+	if (XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_LOCAL) {
+		*first_unused = 0;
+		return 0;
+	}
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	if (!(ifp->if_flags & XFS_IFEXTENTS) &&
+	    (error = xfs_iread_extents(tp, ip, whichfork)))
+		return error;
+	lowest = *first_unused;
+	nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+	base = &ifp->if_u1.if_extents[0];
+	for (lastaddr = 0, max = lowest, ep = base;
+	     ep < &base[nextents];
+	     ep++) {
+		off = xfs_bmbt_get_startoff(ep);
+		/*
+		 * See if the hole before this extent will work.
+		 */
+		if (off >= lowest + len && off - max >= len) {
+			*first_unused = max;
+			return 0;
+		}
+		lastaddr = off + xfs_bmbt_get_blockcount(ep);
+		max = XFS_FILEOFF_MAX(lastaddr, lowest);
+	}
+	*first_unused = max;
+	return 0;
+}
+
+/*
+ * Returns the file-relative block number of the last block + 1 before
+ * last_block (input value) in the file.
+ * This is not based on i_size, it is based on the extent list.
+ * Returns 0 for local files, as they do not have an extent list.
+ */
+int						/* error */
+xfs_bmap_last_before(
+	xfs_trans_t	*tp,			/* transaction pointer */
+	xfs_inode_t	*ip,			/* incore inode */
+	xfs_fileoff_t	*last_block,		/* last block */
+	int		whichfork)		/* data or attr fork */
+{
+	xfs_fileoff_t	bno;			/* input file offset */
+	int		eof;			/* hit end of file */
+	xfs_bmbt_rec_t	*ep;			/* pointer to last extent */
+	int		error;			/* error return value */
+	xfs_bmbt_irec_t	got;			/* current extent value */
+	xfs_ifork_t	*ifp;			/* inode fork pointer */
+	xfs_extnum_t	lastx;			/* last extent used */
+	xfs_bmbt_irec_t	prev;			/* previous extent value */
+
+	if (XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE &&
+	    XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_EXTENTS &&
+	    XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_LOCAL)
+	       return XFS_ERROR(EIO);
+	if (XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_LOCAL) {
+		*last_block = 0;
+		return 0;
+	}
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	if (!(ifp->if_flags & XFS_IFEXTENTS) &&
+	    (error = xfs_iread_extents(tp, ip, whichfork)))
+		return error;
+	bno = *last_block - 1;
+	ep = xfs_bmap_search_extents(ip, bno, whichfork, &eof, &lastx, &got,
+		&prev);
+	if (eof || xfs_bmbt_get_startoff(ep) > bno) {
+		if (prev.br_startoff == NULLFILEOFF)
+			*last_block = 0;
+		else
+			*last_block = prev.br_startoff + prev.br_blockcount;
+	}
+	/*
+	 * Otherwise *last_block is already the right answer.
+	 */
+	return 0;
+}
+
+/*
+ * Returns the file-relative block number of the first block past eof in
+ * the file.  This is not based on i_size, it is based on the extent list.
+ * Returns 0 for local files, as they do not have an extent list.
+ */
+int						/* error */
+xfs_bmap_last_offset(
+	xfs_trans_t	*tp,			/* transaction pointer */
+	xfs_inode_t	*ip,			/* incore inode */
+	xfs_fileoff_t	*last_block,		/* last block */
+	int		whichfork)		/* data or attr fork */
+{
+	xfs_bmbt_rec_t	*base;			/* base of extent array */
+	xfs_bmbt_rec_t	*ep;			/* pointer to last extent */
+	int		error;			/* error return value */
+	xfs_ifork_t	*ifp;			/* inode fork pointer */
+	xfs_extnum_t	nextents;		/* number of extent entries */
+
+	if (XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE &&
+	    XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_EXTENTS &&
+	    XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_LOCAL)
+	       return XFS_ERROR(EIO);
+	if (XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_LOCAL) {
+		*last_block = 0;
+		return 0;
+	}
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	if (!(ifp->if_flags & XFS_IFEXTENTS) &&
+	    (error = xfs_iread_extents(tp, ip, whichfork)))
+		return error;
+	nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+	if (!nextents) {
+		*last_block = 0;
+		return 0;
+	}
+	base = &ifp->if_u1.if_extents[0];
+	ASSERT(base != NULL);
+	ep = &base[nextents - 1];
+	*last_block = xfs_bmbt_get_startoff(ep) + xfs_bmbt_get_blockcount(ep);
+	return 0;
+}
+
+/*
+ * Returns whether the selected fork of the inode has exactly one
+ * block or not.  For the data fork we check this matches di_size,
+ * implying the file's range is 0..bsize-1.
+ */
+int					/* 1=>1 block, 0=>otherwise */
+xfs_bmap_one_block(
+	xfs_inode_t	*ip,		/* incore inode */
+	int		whichfork)	/* data or attr fork */
+{
+	xfs_bmbt_rec_t	*ep;		/* ptr to fork's extent */
+	xfs_ifork_t	*ifp;		/* inode fork pointer */
+	int		rval;		/* return value */
+	xfs_bmbt_irec_t	s;		/* internal version of extent */
+
+#ifndef DEBUG
+	if (whichfork == XFS_DATA_FORK)
+		return ip->i_d.di_size == ip->i_mount->m_sb.sb_blocksize;
+#endif	/* !DEBUG */
+	if (XFS_IFORK_NEXTENTS(ip, whichfork) != 1)
+		return 0;
+	if (XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_EXTENTS)
+		return 0;
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	ASSERT(ifp->if_flags & XFS_IFEXTENTS);
+	ep = ifp->if_u1.if_extents;
+	xfs_bmbt_get_all(ep, &s);
+	rval = s.br_startoff == 0 && s.br_blockcount == 1;
+	if (rval && whichfork == XFS_DATA_FORK)
+		ASSERT(ip->i_d.di_size == ip->i_mount->m_sb.sb_blocksize);
+	return rval;
+}
+
+/*
+ * Read in the extents to if_extents.
+ * All inode fields are set up by caller, we just traverse the btree
+ * and copy the records in. If the file system cannot contain unwritten
+ * extents, the records are checked for no "state" flags.
+ */
+int					/* error */
+xfs_bmap_read_extents(
+	xfs_trans_t		*tp,	/* transaction pointer */
+	xfs_inode_t		*ip,	/* incore inode */
+	int			whichfork) /* data or attr fork */
+{
+	xfs_bmbt_block_t	*block;	/* current btree block */
+	xfs_fsblock_t		bno;	/* block # of "block" */
+	xfs_buf_t		*bp;	/* buffer for "block" */
+	int			error;	/* error return value */
+	xfs_exntfmt_t		exntf;	/* XFS_EXTFMT_NOSTATE, if checking */
+#ifdef XFS_BMAP_TRACE
+	static char		fname[] = "xfs_bmap_read_extents";
+#endif
+	xfs_extnum_t		i, j;	/* index into the extents list */
+	xfs_ifork_t		*ifp;	/* fork structure */
+	int			level;	/* btree level, for checking */
+	xfs_mount_t		*mp;	/* file system mount structure */
+	xfs_bmbt_ptr_t		*pp;	/* pointer to block address */
+	/* REFERENCED */
+	xfs_extnum_t		room;	/* number of entries there's room for */
+	xfs_bmbt_rec_t		*trp;	/* target record pointer */
+
+	bno = NULLFSBLOCK;
+	mp = ip->i_mount;
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	exntf = (whichfork != XFS_DATA_FORK) ? XFS_EXTFMT_NOSTATE :
+					XFS_EXTFMT_INODE(ip);
+	block = ifp->if_broot;
+	/*
+	 * Root level must use BMAP_BROOT_PTR_ADDR macro to get ptr out.
+	 */
+	ASSERT(INT_GET(block->bb_level, ARCH_CONVERT) > 0);
+	level = INT_GET(block->bb_level, ARCH_CONVERT);
+	pp = XFS_BMAP_BROOT_PTR_ADDR(block, 1, ifp->if_broot_bytes);
+	ASSERT(INT_GET(*pp, ARCH_CONVERT) != NULLDFSBNO);
+	ASSERT(XFS_FSB_TO_AGNO(mp, INT_GET(*pp, ARCH_CONVERT)) < mp->m_sb.sb_agcount);
+	ASSERT(XFS_FSB_TO_AGBNO(mp, INT_GET(*pp, ARCH_CONVERT)) < mp->m_sb.sb_agblocks);
+	bno = INT_GET(*pp, ARCH_CONVERT);
+	/*
+	 * Go down the tree until leaf level is reached, following the first
+	 * pointer (leftmost) at each level.
+	 */
+	while (level-- > 0) {
+		if ((error = xfs_btree_read_bufl(mp, tp, bno, 0, &bp,
+				XFS_BMAP_BTREE_REF)))
+			return error;
+		block = XFS_BUF_TO_BMBT_BLOCK(bp);
+		XFS_WANT_CORRUPTED_GOTO(
+			XFS_BMAP_SANITY_CHECK(mp, block, level),
+			error0);
+		if (level == 0)
+			break;
+		pp = XFS_BTREE_PTR_ADDR(mp->m_sb.sb_blocksize, xfs_bmbt, block,
+			1, mp->m_bmap_dmxr[1]);
+		XFS_WANT_CORRUPTED_GOTO(
+			XFS_FSB_SANITY_CHECK(mp, INT_GET(*pp, ARCH_CONVERT)),
+			error0);
+		bno = INT_GET(*pp, ARCH_CONVERT);
+		xfs_trans_brelse(tp, bp);
+	}
+	/*
+	 * Here with bp and block set to the leftmost leaf node in the tree.
+	 */
+	room = ifp->if_bytes / (uint)sizeof(*trp);
+	trp = ifp->if_u1.if_extents;
+	i = 0;
+	/*
+	 * Loop over all leaf nodes.  Copy information to the extent list.
+	 */
+	for (;;) {
+		xfs_bmbt_rec_t	*frp, *temp;
+		xfs_fsblock_t	nextbno;
+		xfs_extnum_t	num_recs;
+
+
+		num_recs = INT_GET(block->bb_numrecs, ARCH_CONVERT);
+		if (unlikely(i + num_recs > room)) {
+			ASSERT(i + num_recs <= room);
+			xfs_fs_cmn_err(CE_WARN, ip->i_mount,
+				"corrupt dinode %Lu, (btree extents).  Unmount and run xfs_repair.",
+				(unsigned long long) ip->i_ino);
+			XFS_ERROR_REPORT("xfs_bmap_read_extents(1)",
+					 XFS_ERRLEVEL_LOW,
+					ip->i_mount);
+			goto error0;
+		}
+		XFS_WANT_CORRUPTED_GOTO(
+			XFS_BMAP_SANITY_CHECK(mp, block, 0),
+			error0);
+		/*
+		 * Read-ahead the next leaf block, if any.
+		 */
+		nextbno = INT_GET(block->bb_rightsib, ARCH_CONVERT);
+		if (nextbno != NULLFSBLOCK)
+			xfs_btree_reada_bufl(mp, nextbno, 1);
+		/*
+		 * Copy records into the extent list.
+		 */
+		frp = XFS_BTREE_REC_ADDR(mp->m_sb.sb_blocksize, xfs_bmbt,
+			block, 1, mp->m_bmap_dmxr[0]);
+		temp = trp;
+		for (j = 0; j < num_recs; j++, frp++, trp++) {
+			trp->l0 = INT_GET(frp->l0, ARCH_CONVERT);
+			trp->l1 = INT_GET(frp->l1, ARCH_CONVERT);
+		}
+		if (exntf == XFS_EXTFMT_NOSTATE) {
+			/*
+			 * Check all attribute bmap btree records and
+			 * any "older" data bmap btree records for a
+			 * set bit in the "extent flag" position.
+			 */
+			if (unlikely(xfs_check_nostate_extents(temp, num_recs))) {
+				XFS_ERROR_REPORT("xfs_bmap_read_extents(2)",
+						 XFS_ERRLEVEL_LOW,
+						 ip->i_mount);
+				goto error0;
+			}
+		}
+		i += num_recs;
+		xfs_trans_brelse(tp, bp);
+		bno = nextbno;
+		/*
+		 * If we've reached the end, stop.
+		 */
+		if (bno == NULLFSBLOCK)
+			break;
+		if ((error = xfs_btree_read_bufl(mp, tp, bno, 0, &bp,
+				XFS_BMAP_BTREE_REF)))
+			return error;
+		block = XFS_BUF_TO_BMBT_BLOCK(bp);
+	}
+	ASSERT(i == ifp->if_bytes / (uint)sizeof(*trp));
+	ASSERT(i == XFS_IFORK_NEXTENTS(ip, whichfork));
+	xfs_bmap_trace_exlist(fname, ip, i, whichfork);
+	return 0;
+error0:
+	xfs_trans_brelse(tp, bp);
+	return XFS_ERROR(EFSCORRUPTED);
+}
+
+#ifdef XFS_BMAP_TRACE
+/*
+ * Add bmap trace insert entries for all the contents of the extent list.
+ */
+void
+xfs_bmap_trace_exlist(
+	char		*fname,		/* function name */
+	xfs_inode_t	*ip,		/* incore inode pointer */
+	xfs_extnum_t	cnt,		/* count of entries in the list */
+	int		whichfork)	/* data or attr fork */
+{
+	xfs_bmbt_rec_t	*base;		/* base of extent list */
+	xfs_bmbt_rec_t	*ep;		/* current entry in extent list */
+	xfs_extnum_t	idx;		/* extent list entry number */
+	xfs_ifork_t	*ifp;		/* inode fork pointer */
+	xfs_bmbt_irec_t	s;		/* extent list record */
+
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	ASSERT(cnt == ifp->if_bytes / (uint)sizeof(*base));
+	base = ifp->if_u1.if_extents;
+	for (idx = 0, ep = base; idx < cnt; idx++, ep++) {
+		xfs_bmbt_get_all(ep, &s);
+		xfs_bmap_trace_insert(fname, "exlist", ip, idx, 1, &s, NULL,
+			whichfork);
+	}
+}
+#endif
+
+#ifdef DEBUG
+/*
+ * Validate that the bmbt_irecs being returned from bmapi are valid
+ * given the callers original parameters.  Specifically check the
+ * ranges of the returned irecs to ensure that they only extent beyond
+ * the given parameters if the XFS_BMAPI_ENTIRE flag was set.
+ */
+STATIC void
+xfs_bmap_validate_ret(
+	xfs_fileoff_t		bno,
+	xfs_filblks_t		len,
+	int			flags,
+	xfs_bmbt_irec_t		*mval,
+	int			nmap,
+	int			ret_nmap)
+{
+	int			i;		/* index to map values */
+
+	ASSERT(ret_nmap <= nmap);
+
+	for (i = 0; i < ret_nmap; i++) {
+		ASSERT(mval[i].br_blockcount > 0);
+		if (!(flags & XFS_BMAPI_ENTIRE)) {
+			ASSERT(mval[i].br_startoff >= bno);
+			ASSERT(mval[i].br_blockcount <= len);
+			ASSERT(mval[i].br_startoff + mval[i].br_blockcount <=
+			       bno + len);
+		} else {
+			ASSERT(mval[i].br_startoff < bno + len);
+			ASSERT(mval[i].br_startoff + mval[i].br_blockcount >
+			       bno);
+		}
+		ASSERT(i == 0 ||
+		       mval[i - 1].br_startoff + mval[i - 1].br_blockcount ==
+		       mval[i].br_startoff);
+		if ((flags & XFS_BMAPI_WRITE) && !(flags & XFS_BMAPI_DELAY))
+			ASSERT(mval[i].br_startblock != DELAYSTARTBLOCK &&
+			       mval[i].br_startblock != HOLESTARTBLOCK);
+		ASSERT(mval[i].br_state == XFS_EXT_NORM ||
+		       mval[i].br_state == XFS_EXT_UNWRITTEN);
+	}
+}
+#endif /* DEBUG */
+
+
+/*
+ * Map file blocks to filesystem blocks.
+ * File range is given by the bno/len pair.
+ * Adds blocks to file if a write ("flags & XFS_BMAPI_WRITE" set)
+ * into a hole or past eof.
+ * Only allocates blocks from a single allocation group,
+ * to avoid locking problems.
+ * The returned value in "firstblock" from the first call in a transaction
+ * must be remembered and presented to subsequent calls in "firstblock".
+ * An upper bound for the number of blocks to be allocated is supplied to
+ * the first call in "total"; if no allocation group has that many free
+ * blocks then the call will fail (return NULLFSBLOCK in "firstblock").
+ */
+int					/* error */
+xfs_bmapi(
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_inode_t	*ip,		/* incore inode */
+	xfs_fileoff_t	bno,		/* starting file offs. mapped */
+	xfs_filblks_t	len,		/* length to map in file */
+	int		flags,		/* XFS_BMAPI_... */
+	xfs_fsblock_t	*firstblock,	/* first allocated block
+					   controls a.g. for allocs */
+	xfs_extlen_t	total,		/* total blocks needed */
+	xfs_bmbt_irec_t	*mval,		/* output: map values */
+	int		*nmap,		/* i/o: mval size/count */
+	xfs_bmap_free_t	*flist)		/* i/o: list extents to free */
+{
+	xfs_fsblock_t	abno;		/* allocated block number */
+	xfs_extlen_t	alen;		/* allocated extent length */
+	xfs_fileoff_t	aoff;		/* allocated file offset */
+	xfs_bmalloca_t	bma;		/* args for xfs_bmap_alloc */
+	char		contig;		/* allocation must be one extent */
+	xfs_btree_cur_t	*cur;		/* bmap btree cursor */
+	char		delay;		/* this request is for delayed alloc */
+	xfs_fileoff_t	end;		/* end of mapped file region */
+	int		eof;		/* we've hit the end of extent list */
+	xfs_bmbt_rec_t	*ep;		/* extent list entry pointer */
+	int		error;		/* error return */
+	char		exact;		/* don't do all of wasdelayed extent */
+	xfs_bmbt_irec_t	got;		/* current extent list record */
+	xfs_ifork_t	*ifp;		/* inode fork pointer */
+	xfs_extlen_t	indlen;		/* indirect blocks length */
+	char		inhole;		/* current location is hole in file */
+	xfs_extnum_t	lastx;		/* last useful extent number */
+	int		logflags;	/* flags for transaction logging */
+	xfs_extlen_t	minleft;	/* min blocks left after allocation */
+	xfs_extlen_t	minlen;		/* min allocation size */
+	xfs_mount_t	*mp;		/* xfs mount structure */
+	int		n;		/* current extent index */
+	int		nallocs;	/* number of extents alloc\'d */
+	xfs_extnum_t	nextents;	/* number of extents in file */
+	xfs_fileoff_t	obno;		/* old block number (offset) */
+	xfs_bmbt_irec_t	prev;		/* previous extent list record */
+	char		stateless;	/* ignore state flag set */
+	int		tmp_logflags;	/* temp flags holder */
+	char		trim;		/* output trimmed to match range */
+	char		userdata;	/* allocating non-metadata */
+	char		wasdelay;	/* old extent was delayed */
+	int		whichfork;	/* data or attr fork */
+	char		wr;		/* this is a write request */
+	char		rsvd;		/* OK to allocate reserved blocks */
+#ifdef DEBUG
+	xfs_fileoff_t	orig_bno;	/* original block number value */
+	int		orig_flags;	/* original flags arg value */
+	xfs_filblks_t	orig_len;	/* original value of len arg */
+	xfs_bmbt_irec_t	*orig_mval;	/* original value of mval */
+	int		orig_nmap;	/* original value of *nmap */
+
+	orig_bno = bno;
+	orig_len = len;
+	orig_flags = flags;
+	orig_mval = mval;
+	orig_nmap = *nmap;
+#endif
+	ASSERT(*nmap >= 1);
+	ASSERT(*nmap <= XFS_BMAP_MAX_NMAP || !(flags & XFS_BMAPI_WRITE));
+	whichfork = (flags & XFS_BMAPI_ATTRFORK) ?
+		XFS_ATTR_FORK : XFS_DATA_FORK;
+	mp = ip->i_mount;
+	if (unlikely(XFS_TEST_ERROR(
+	    (XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_EXTENTS &&
+	     XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE &&
+	     XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_LOCAL),
+	     mp, XFS_ERRTAG_BMAPIFORMAT, XFS_RANDOM_BMAPIFORMAT))) {
+		XFS_ERROR_REPORT("xfs_bmapi", XFS_ERRLEVEL_LOW, mp);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+	if (XFS_FORCED_SHUTDOWN(mp))
+		return XFS_ERROR(EIO);
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	ASSERT(ifp->if_ext_max ==
+	       XFS_IFORK_SIZE(ip, whichfork) / (uint)sizeof(xfs_bmbt_rec_t));
+	if ((wr = (flags & XFS_BMAPI_WRITE)) != 0)
+		XFS_STATS_INC(xs_blk_mapw);
+	else
+		XFS_STATS_INC(xs_blk_mapr);
+	delay = (flags & XFS_BMAPI_DELAY) != 0;
+	trim = (flags & XFS_BMAPI_ENTIRE) == 0;
+	userdata = (flags & XFS_BMAPI_METADATA) == 0;
+	exact = (flags & XFS_BMAPI_EXACT) != 0;
+	rsvd = (flags & XFS_BMAPI_RSVBLOCKS) != 0;
+	contig = (flags & XFS_BMAPI_CONTIG) != 0;
+	/*
+	 * stateless is used to combine extents which
+	 * differ only due to the state of the extents.
+	 * This technique is used from xfs_getbmap()
+	 * when the caller does not wish to see the
+	 * separation (which is the default).
+	 *
+	 * This technique is also used when writing a
+	 * buffer which has been partially written,
+	 * (usually by being flushed during a chunkread),
+	 * to ensure one write takes place. This also
+	 * prevents a change in the xfs inode extents at
+	 * this time, intentionally. This change occurs
+	 * on completion of the write operation, in
+	 * xfs_strat_comp(), where the xfs_bmapi() call
+	 * is transactioned, and the extents combined.
+	 */
+	stateless = (flags & XFS_BMAPI_IGSTATE) != 0;
+	if (stateless && wr)	/* if writing unwritten space, no */
+		wr = 0;		/* allocations are allowed */
+	ASSERT(wr || !delay);
+	logflags = 0;
+	nallocs = 0;
+	cur = NULL;
+	if (XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_LOCAL) {
+		ASSERT(wr && tp);
+		if ((error = xfs_bmap_local_to_extents(tp, ip,
+				firstblock, total, &logflags, whichfork)))
+			goto error0;
+	}
+	if (wr && *firstblock == NULLFSBLOCK) {
+		if (XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_BTREE)
+			minleft = INT_GET(ifp->if_broot->bb_level, ARCH_CONVERT) + 1;
+		else
+			minleft = 1;
+	} else
+		minleft = 0;
+	if (!(ifp->if_flags & XFS_IFEXTENTS) &&
+	    (error = xfs_iread_extents(tp, ip, whichfork)))
+		goto error0;
+	ep = xfs_bmap_search_extents(ip, bno, whichfork, &eof, &lastx, &got,
+		&prev);
+	nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+	n = 0;
+	end = bno + len;
+	obno = bno;
+	bma.ip = NULL;
+	while (bno < end && n < *nmap) {
+		/*
+		 * Reading past eof, act as though there's a hole
+		 * up to end.
+		 */
+		if (eof && !wr)
+			got.br_startoff = end;
+		inhole = eof || got.br_startoff > bno;
+		wasdelay = wr && !inhole && !delay &&
+			ISNULLSTARTBLOCK(got.br_startblock);
+		/*
+		 * First, deal with the hole before the allocated space
+		 * that we found, if any.
+		 */
+		if (wr && (inhole || wasdelay)) {
+			/*
+			 * For the wasdelay case, we could also just
+			 * allocate the stuff asked for in this bmap call
+			 * but that wouldn't be as good.
+			 */
+			if (wasdelay && !exact) {
+				alen = (xfs_extlen_t)got.br_blockcount;
+				aoff = got.br_startoff;
+				if (lastx != NULLEXTNUM && lastx) {
+					ep = &ifp->if_u1.if_extents[lastx - 1];
+					xfs_bmbt_get_all(ep, &prev);
+				}
+			} else if (wasdelay) {
+				alen = (xfs_extlen_t)
+					XFS_FILBLKS_MIN(len,
+						(got.br_startoff +
+						 got.br_blockcount) - bno);
+				aoff = bno;
+			} else {
+				alen = (xfs_extlen_t)
+					XFS_FILBLKS_MIN(len, MAXEXTLEN);
+				if (!eof)
+					alen = (xfs_extlen_t)
+						XFS_FILBLKS_MIN(alen,
+							got.br_startoff - bno);
+				aoff = bno;
+			}
+			minlen = contig ? alen : 1;
+			if (delay) {
+				indlen = (xfs_extlen_t)
+					xfs_bmap_worst_indlen(ip, alen);
+				ASSERT(indlen > 0);
+				/*
+				 * Make a transaction-less quota reservation for
+				 * delayed allocation blocks. This number gets
+				 * adjusted later.
+				 * We return EDQUOT if we haven't allocated
+				 * blks already inside this loop;
+				 */
+				if (XFS_TRANS_RESERVE_BLKQUOTA(
+						mp, NULL, ip, (long)alen)) {
+					if (n == 0) {
+						*nmap = 0;
+						ASSERT(cur == NULL);
+						return XFS_ERROR(EDQUOT);
+					}
+					break;
+				}
+
+				/*
+				 * Split changing sb for alen and indlen since
+				 * they could be coming from different places.
+				 */
+				if (ip->i_d.di_flags & XFS_DIFLAG_REALTIME) {
+					xfs_extlen_t	extsz;
+					xfs_extlen_t	ralen;
+					if (!(extsz = ip->i_d.di_extsize))
+						extsz = mp->m_sb.sb_rextsize;
+					ralen = roundup(alen, extsz);
+					ralen = ralen / mp->m_sb.sb_rextsize;
+					if (xfs_mod_incore_sb(mp,
+						XFS_SBS_FREXTENTS,
+						-(ralen), rsvd)) {
+						if (XFS_IS_QUOTA_ON(ip->i_mount))
+							XFS_TRANS_UNRESERVE_BLKQUOTA(
+						     		mp, NULL, ip,
+								(long)alen);
+						break;
+					}
+				} else {
+					if (xfs_mod_incore_sb(mp,
+							      XFS_SBS_FDBLOCKS,
+							      -(alen), rsvd)) {
+						if (XFS_IS_QUOTA_ON(ip->i_mount))
+							XFS_TRANS_UNRESERVE_BLKQUOTA(
+								mp, NULL, ip,
+								(long)alen);
+						break;
+					}
+				}
+
+				if (xfs_mod_incore_sb(mp, XFS_SBS_FDBLOCKS,
+						-(indlen), rsvd)) {
+					XFS_TRANS_UNRESERVE_BLKQUOTA(
+						mp, NULL, ip, (long)alen);
+					break;
+				}
+				ip->i_delayed_blks += alen;
+				abno = NULLSTARTBLOCK(indlen);
+			} else {
+				/*
+				 * If first time, allocate and fill in
+				 * once-only bma fields.
+				 */
+				if (bma.ip == NULL) {
+					bma.tp = tp;
+					bma.ip = ip;
+					bma.prevp = &prev;
+					bma.gotp = &got;
+					bma.total = total;
+					bma.userdata = 0;
+				}
+				/* Indicate if this is the first user data
+				 * in the file, or just any user data.
+				 */
+				if (userdata) {
+					bma.userdata = (aoff == 0) ?
+						XFS_ALLOC_INITIAL_USER_DATA :
+						XFS_ALLOC_USERDATA;
+				}
+				/*
+				 * Fill in changeable bma fields.
+				 */
+				bma.eof = eof;
+				bma.firstblock = *firstblock;
+				bma.alen = alen;
+				bma.off = aoff;
+				bma.wasdel = wasdelay;
+				bma.minlen = minlen;
+				bma.low = flist->xbf_low;
+				bma.minleft = minleft;
+				/*
+				 * Only want to do the alignment at the
+				 * eof if it is userdata and allocation length
+				 * is larger than a stripe unit.
+				 */
+				if (mp->m_dalign && alen >= mp->m_dalign &&
+				    userdata && whichfork == XFS_DATA_FORK) {
+					if ((error = xfs_bmap_isaeof(ip, aoff,
+							whichfork, &bma.aeof)))
+						goto error0;
+				} else
+					bma.aeof = 0;
+				/*
+				 * Call allocator.
+				 */
+				if ((error = xfs_bmap_alloc(&bma)))
+					goto error0;
+				/*
+				 * Copy out result fields.
+				 */
+				abno = bma.rval;
+				if ((flist->xbf_low = bma.low))
+					minleft = 0;
+				alen = bma.alen;
+				aoff = bma.off;
+				ASSERT(*firstblock == NULLFSBLOCK ||
+				       XFS_FSB_TO_AGNO(mp, *firstblock) ==
+				       XFS_FSB_TO_AGNO(mp, bma.firstblock) ||
+				       (flist->xbf_low &&
+					XFS_FSB_TO_AGNO(mp, *firstblock) <
+					XFS_FSB_TO_AGNO(mp, bma.firstblock)));
+				*firstblock = bma.firstblock;
+				if (cur)
+					cur->bc_private.b.firstblock =
+						*firstblock;
+				if (abno == NULLFSBLOCK)
+					break;
+				if ((ifp->if_flags & XFS_IFBROOT) && !cur) {
+					cur = xfs_btree_init_cursor(mp,
+						tp, NULL, 0, XFS_BTNUM_BMAP,
+						ip, whichfork);
+					cur->bc_private.b.firstblock =
+						*firstblock;
+					cur->bc_private.b.flist = flist;
+				}
+				/*
+				 * Bump the number of extents we've allocated
+				 * in this call.
+				 */
+				nallocs++;
+			}
+			if (cur)
+				cur->bc_private.b.flags =
+					wasdelay ? XFS_BTCUR_BPRV_WASDEL : 0;
+			got.br_startoff = aoff;
+			got.br_startblock = abno;
+			got.br_blockcount = alen;
+			got.br_state = XFS_EXT_NORM;	/* assume normal */
+			/*
+			 * Determine state of extent, and the filesystem.
+			 * A wasdelay extent has been initialized, so
+			 * shouldn't be flagged as unwritten.
+			 */
+			if (wr && XFS_SB_VERSION_HASEXTFLGBIT(&mp->m_sb)) {
+				if (!wasdelay && (flags & XFS_BMAPI_PREALLOC))
+					got.br_state = XFS_EXT_UNWRITTEN;
+			}
+			error = xfs_bmap_add_extent(ip, lastx, &cur, &got,
+				firstblock, flist, &tmp_logflags, whichfork,
+				rsvd);
+			logflags |= tmp_logflags;
+			if (error)
+				goto error0;
+			lastx = ifp->if_lastex;
+			ep = &ifp->if_u1.if_extents[lastx];
+			nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+			xfs_bmbt_get_all(ep, &got);
+			ASSERT(got.br_startoff <= aoff);
+			ASSERT(got.br_startoff + got.br_blockcount >=
+				aoff + alen);
+#ifdef DEBUG
+			if (delay) {
+				ASSERT(ISNULLSTARTBLOCK(got.br_startblock));
+				ASSERT(STARTBLOCKVAL(got.br_startblock) > 0);
+			}
+			ASSERT(got.br_state == XFS_EXT_NORM ||
+			       got.br_state == XFS_EXT_UNWRITTEN);
+#endif
+			/*
+			 * Fall down into the found allocated space case.
+			 */
+		} else if (inhole) {
+			/*
+			 * Reading in a hole.
+			 */
+			mval->br_startoff = bno;
+			mval->br_startblock = HOLESTARTBLOCK;
+			mval->br_blockcount =
+				XFS_FILBLKS_MIN(len, got.br_startoff - bno);
+			mval->br_state = XFS_EXT_NORM;
+			bno += mval->br_blockcount;
+			len -= mval->br_blockcount;
+			mval++;
+			n++;
+			continue;
+		}
+		/*
+		 * Then deal with the allocated space we found.
+		 */
+		ASSERT(ep != NULL);
+		if (trim && (got.br_startoff + got.br_blockcount > obno)) {
+			if (obno > bno)
+				bno = obno;
+			ASSERT((bno >= obno) || (n == 0));
+			ASSERT(bno < end);
+			mval->br_startoff = bno;
+			if (ISNULLSTARTBLOCK(got.br_startblock)) {
+				ASSERT(!wr || delay);
+				mval->br_startblock = DELAYSTARTBLOCK;
+			} else
+				mval->br_startblock =
+					got.br_startblock +
+					(bno - got.br_startoff);
+			/*
+			 * Return the minimum of what we got and what we
+			 * asked for for the length.  We can use the len
+			 * variable here because it is modified below
+			 * and we could have been there before coming
+			 * here if the first part of the allocation
+			 * didn't overlap what was asked for.
+			 */
+			mval->br_blockcount =
+				XFS_FILBLKS_MIN(end - bno, got.br_blockcount -
+					(bno - got.br_startoff));
+			mval->br_state = got.br_state;
+			ASSERT(mval->br_blockcount <= len);
+		} else {
+			*mval = got;
+			if (ISNULLSTARTBLOCK(mval->br_startblock)) {
+				ASSERT(!wr || delay);
+				mval->br_startblock = DELAYSTARTBLOCK;
+			}
+		}
+
+		/*
+		 * Check if writing previously allocated but
+		 * unwritten extents.
+		 */
+		if (wr && mval->br_state == XFS_EXT_UNWRITTEN &&
+		    ((flags & (XFS_BMAPI_PREALLOC|XFS_BMAPI_DELAY)) == 0)) {
+			/*
+			 * Modify (by adding) the state flag, if writing.
+			 */
+			ASSERT(mval->br_blockcount <= len);
+			if ((ifp->if_flags & XFS_IFBROOT) && !cur) {
+				cur = xfs_btree_init_cursor(mp,
+					tp, NULL, 0, XFS_BTNUM_BMAP,
+					ip, whichfork);
+				cur->bc_private.b.firstblock =
+					*firstblock;
+				cur->bc_private.b.flist = flist;
+			}
+			mval->br_state = XFS_EXT_NORM;
+			error = xfs_bmap_add_extent(ip, lastx, &cur, mval,
+				firstblock, flist, &tmp_logflags, whichfork,
+				rsvd);
+			logflags |= tmp_logflags;
+			if (error)
+				goto error0;
+			lastx = ifp->if_lastex;
+			ep = &ifp->if_u1.if_extents[lastx];
+			nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+			xfs_bmbt_get_all(ep, &got);
+			/*
+			 * We may have combined previously unwritten
+			 * space with written space, so generate
+			 * another request.
+			 */
+			if (mval->br_blockcount < len)
+				continue;
+		}
+
+		ASSERT(!trim ||
+		       ((mval->br_startoff + mval->br_blockcount) <= end));
+		ASSERT(!trim || (mval->br_blockcount <= len) ||
+		       (mval->br_startoff < obno));
+		bno = mval->br_startoff + mval->br_blockcount;
+		len = end - bno;
+		if (n > 0 && mval->br_startoff == mval[-1].br_startoff) {
+			ASSERT(mval->br_startblock == mval[-1].br_startblock);
+			ASSERT(mval->br_blockcount > mval[-1].br_blockcount);
+			ASSERT(mval->br_state == mval[-1].br_state);
+			mval[-1].br_blockcount = mval->br_blockcount;
+			mval[-1].br_state = mval->br_state;
+		} else if (n > 0 && mval->br_startblock != DELAYSTARTBLOCK &&
+			   mval[-1].br_startblock != DELAYSTARTBLOCK &&
+			   mval[-1].br_startblock != HOLESTARTBLOCK &&
+			   mval->br_startblock ==
+			   mval[-1].br_startblock + mval[-1].br_blockcount &&
+			   (stateless || mval[-1].br_state == mval->br_state)) {
+			ASSERT(mval->br_startoff ==
+			       mval[-1].br_startoff + mval[-1].br_blockcount);
+			mval[-1].br_blockcount += mval->br_blockcount;
+		} else if (n > 0 &&
+			   mval->br_startblock == DELAYSTARTBLOCK &&
+			   mval[-1].br_startblock == DELAYSTARTBLOCK &&
+			   mval->br_startoff ==
+			   mval[-1].br_startoff + mval[-1].br_blockcount) {
+			mval[-1].br_blockcount += mval->br_blockcount;
+			mval[-1].br_state = mval->br_state;
+		} else if (!((n == 0) &&
+			     ((mval->br_startoff + mval->br_blockcount) <=
+			      obno))) {
+			mval++;
+			n++;
+		}
+		/*
+		 * If we're done, stop now.  Stop when we've allocated
+		 * XFS_BMAP_MAX_NMAP extents no matter what.  Otherwise
+		 * the transaction may get too big.
+		 */
+		if (bno >= end || n >= *nmap || nallocs >= *nmap)
+			break;
+		/*
+		 * Else go on to the next record.
+		 */
+		ep++;
+		lastx++;
+		if (lastx >= nextents) {
+			eof = 1;
+			prev = got;
+		} else
+			xfs_bmbt_get_all(ep, &got);
+	}
+	ifp->if_lastex = lastx;
+	*nmap = n;
+	/*
+	 * Transform from btree to extents, give it cur.
+	 */
+	if (tp && XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_BTREE &&
+	    XFS_IFORK_NEXTENTS(ip, whichfork) <= ifp->if_ext_max) {
+		ASSERT(wr && cur);
+		error = xfs_bmap_btree_to_extents(tp, ip, cur,
+			&tmp_logflags, whichfork);
+		logflags |= tmp_logflags;
+		if (error)
+			goto error0;
+	}
+	ASSERT(ifp->if_ext_max ==
+	       XFS_IFORK_SIZE(ip, whichfork) / (uint)sizeof(xfs_bmbt_rec_t));
+	ASSERT(XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE ||
+	       XFS_IFORK_NEXTENTS(ip, whichfork) > ifp->if_ext_max);
+	error = 0;
+
+error0:
+	/*
+	 * Log everything.  Do this after conversion, there's no point in
+	 * logging the extent list if we've converted to btree format.
+	 */
+	if ((logflags & XFS_ILOG_FEXT(whichfork)) &&
+	    XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_EXTENTS)
+		logflags &= ~XFS_ILOG_FEXT(whichfork);
+	else if ((logflags & XFS_ILOG_FBROOT(whichfork)) &&
+		 XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE)
+		logflags &= ~XFS_ILOG_FBROOT(whichfork);
+	/*
+	 * Log whatever the flags say, even if error.  Otherwise we might miss
+	 * detecting a case where the data is changed, there's an error,
+	 * and it's not logged so we don't shutdown when we should.
+	 */
+	if (logflags) {
+		ASSERT(tp && wr);
+		xfs_trans_log_inode(tp, ip, logflags);
+	}
+	if (cur) {
+		if (!error) {
+			ASSERT(*firstblock == NULLFSBLOCK ||
+			       XFS_FSB_TO_AGNO(mp, *firstblock) ==
+			       XFS_FSB_TO_AGNO(mp,
+				       cur->bc_private.b.firstblock) ||
+			       (flist->xbf_low &&
+				XFS_FSB_TO_AGNO(mp, *firstblock) <
+				XFS_FSB_TO_AGNO(mp,
+					cur->bc_private.b.firstblock)));
+			*firstblock = cur->bc_private.b.firstblock;
+		}
+		xfs_btree_del_cursor(cur,
+			error ? XFS_BTREE_ERROR : XFS_BTREE_NOERROR);
+	}
+	if (!error)
+		xfs_bmap_validate_ret(orig_bno, orig_len, orig_flags, orig_mval,
+			orig_nmap, *nmap);
+	return error;
+}
+
+/*
+ * Map file blocks to filesystem blocks, simple version.
+ * One block (extent) only, read-only.
+ * For flags, only the XFS_BMAPI_ATTRFORK flag is examined.
+ * For the other flag values, the effect is as if XFS_BMAPI_METADATA
+ * was set and all the others were clear.
+ */
+int						/* error */
+xfs_bmapi_single(
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_inode_t	*ip,		/* incore inode */
+	int		whichfork,	/* data or attr fork */
+	xfs_fsblock_t	*fsb,		/* output: mapped block */
+	xfs_fileoff_t	bno)		/* starting file offs. mapped */
+{
+	int		eof;		/* we've hit the end of extent list */
+	int		error;		/* error return */
+	xfs_bmbt_irec_t	got;		/* current extent list record */
+	xfs_ifork_t	*ifp;		/* inode fork pointer */
+	xfs_extnum_t	lastx;		/* last useful extent number */
+	xfs_bmbt_irec_t	prev;		/* previous extent list record */
+
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	if (unlikely(
+	    XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE &&
+	    XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_EXTENTS)) {
+	       XFS_ERROR_REPORT("xfs_bmapi_single", XFS_ERRLEVEL_LOW,
+				ip->i_mount);
+	       return XFS_ERROR(EFSCORRUPTED);
+	}
+	if (XFS_FORCED_SHUTDOWN(ip->i_mount))
+		return XFS_ERROR(EIO);
+	XFS_STATS_INC(xs_blk_mapr);
+	if (!(ifp->if_flags & XFS_IFEXTENTS) &&
+	    (error = xfs_iread_extents(tp, ip, whichfork)))
+		return error;
+	(void)xfs_bmap_search_extents(ip, bno, whichfork, &eof, &lastx, &got,
+		&prev);
+	/*
+	 * Reading past eof, act as though there's a hole
+	 * up to end.
+	 */
+	if (eof || got.br_startoff > bno) {
+		*fsb = NULLFSBLOCK;
+		return 0;
+	}
+	ASSERT(!ISNULLSTARTBLOCK(got.br_startblock));
+	ASSERT(bno < got.br_startoff + got.br_blockcount);
+	*fsb = got.br_startblock + (bno - got.br_startoff);
+	ifp->if_lastex = lastx;
+	return 0;
+}
+
+/*
+ * Unmap (remove) blocks from a file.
+ * If nexts is nonzero then the number of extents to remove is limited to
+ * that value.  If not all extents in the block range can be removed then
+ * *done is set.
+ */
+int						/* error */
+xfs_bunmapi(
+	xfs_trans_t		*tp,		/* transaction pointer */
+	struct xfs_inode	*ip,		/* incore inode */
+	xfs_fileoff_t		bno,		/* starting offset to unmap */
+	xfs_filblks_t		len,		/* length to unmap in file */
+	int			flags,		/* misc flags */
+	xfs_extnum_t		nexts,		/* number of extents max */
+	xfs_fsblock_t		*firstblock,	/* first allocated block
+						   controls a.g. for allocs */
+	xfs_bmap_free_t		*flist,		/* i/o: list extents to free */
+	int			*done)		/* set if not done yet */
+{
+	xfs_btree_cur_t		*cur;		/* bmap btree cursor */
+	xfs_bmbt_irec_t		del;		/* extent being deleted */
+	int			eof;		/* is deleting at eof */
+	xfs_bmbt_rec_t		*ep;		/* extent list entry pointer */
+	int			error;		/* error return value */
+	xfs_extnum_t		extno;		/* extent number in list */
+	xfs_bmbt_irec_t		got;		/* current extent list entry */
+	xfs_ifork_t		*ifp;		/* inode fork pointer */
+	int			isrt;		/* freeing in rt area */
+	xfs_extnum_t		lastx;		/* last extent index used */
+	int			logflags;	/* transaction logging flags */
+	xfs_extlen_t		mod;		/* rt extent offset */
+	xfs_mount_t		*mp;		/* mount structure */
+	xfs_extnum_t		nextents;	/* size of extent list */
+	xfs_bmbt_irec_t		prev;		/* previous extent list entry */
+	xfs_fileoff_t		start;		/* first file offset deleted */
+	int			tmp_logflags;	/* partial logging flags */
+	int			wasdel;		/* was a delayed alloc extent */
+	int			whichfork;	/* data or attribute fork */
+	int			rsvd;		/* OK to allocate reserved blocks */
+	xfs_fsblock_t		sum;
+
+	xfs_bunmap_trace(ip, bno, len, flags, (inst_t *)__return_address);
+	whichfork = (flags & XFS_BMAPI_ATTRFORK) ?
+		XFS_ATTR_FORK : XFS_DATA_FORK;
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	if (unlikely(
+	    XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_EXTENTS &&
+	    XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE)) {
+		XFS_ERROR_REPORT("xfs_bunmapi", XFS_ERRLEVEL_LOW,
+				 ip->i_mount);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+	mp = ip->i_mount;
+	if (XFS_FORCED_SHUTDOWN(mp))
+		return XFS_ERROR(EIO);
+	rsvd = (flags & XFS_BMAPI_RSVBLOCKS) != 0;
+	ASSERT(len > 0);
+	ASSERT(nexts >= 0);
+	ASSERT(ifp->if_ext_max ==
+	       XFS_IFORK_SIZE(ip, whichfork) / (uint)sizeof(xfs_bmbt_rec_t));
+	if (!(ifp->if_flags & XFS_IFEXTENTS) &&
+	    (error = xfs_iread_extents(tp, ip, whichfork)))
+		return error;
+	nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+	if (nextents == 0) {
+		*done = 1;
+		return 0;
+	}
+	XFS_STATS_INC(xs_blk_unmap);
+	isrt = (whichfork == XFS_DATA_FORK) &&
+	       (ip->i_d.di_flags & XFS_DIFLAG_REALTIME);
+	start = bno;
+	bno = start + len - 1;
+	ep = xfs_bmap_search_extents(ip, bno, whichfork, &eof, &lastx, &got,
+		&prev);
+	/*
+	 * Check to see if the given block number is past the end of the
+	 * file, back up to the last block if so...
+	 */
+	if (eof) {
+		ep = &ifp->if_u1.if_extents[--lastx];
+		xfs_bmbt_get_all(ep, &got);
+		bno = got.br_startoff + got.br_blockcount - 1;
+	}
+	logflags = 0;
+	if (ifp->if_flags & XFS_IFBROOT) {
+		ASSERT(XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_BTREE);
+		cur = xfs_btree_init_cursor(mp, tp, NULL, 0, XFS_BTNUM_BMAP, ip,
+			whichfork);
+		cur->bc_private.b.firstblock = *firstblock;
+		cur->bc_private.b.flist = flist;
+		cur->bc_private.b.flags = 0;
+	} else
+		cur = NULL;
+	extno = 0;
+	while (bno != (xfs_fileoff_t)-1 && bno >= start && lastx >= 0 &&
+	       (nexts == 0 || extno < nexts)) {
+		/*
+		 * Is the found extent after a hole in which bno lives?
+		 * Just back up to the previous extent, if so.
+		 */
+		if (got.br_startoff > bno) {
+			if (--lastx < 0)
+				break;
+			ep--;
+			xfs_bmbt_get_all(ep, &got);
+		}
+		/*
+		 * Is the last block of this extent before the range
+		 * we're supposed to delete?  If so, we're done.
+		 */
+		bno = XFS_FILEOFF_MIN(bno,
+			got.br_startoff + got.br_blockcount - 1);
+		if (bno < start)
+			break;
+		/*
+		 * Then deal with the (possibly delayed) allocated space
+		 * we found.
+		 */
+		ASSERT(ep != NULL);
+		del = got;
+		wasdel = ISNULLSTARTBLOCK(del.br_startblock);
+		if (got.br_startoff < start) {
+			del.br_startoff = start;
+			del.br_blockcount -= start - got.br_startoff;
+			if (!wasdel)
+				del.br_startblock += start - got.br_startoff;
+		}
+		if (del.br_startoff + del.br_blockcount > bno + 1)
+			del.br_blockcount = bno + 1 - del.br_startoff;
+		sum = del.br_startblock + del.br_blockcount;
+		if (isrt &&
+		    (mod = do_mod(sum, mp->m_sb.sb_rextsize))) {
+			/*
+			 * Realtime extent not lined up at the end.
+			 * The extent could have been split into written
+			 * and unwritten pieces, or we could just be
+			 * unmapping part of it.  But we can't really
+			 * get rid of part of a realtime extent.
+			 */
+			if (del.br_state == XFS_EXT_UNWRITTEN ||
+			    !XFS_SB_VERSION_HASEXTFLGBIT(&mp->m_sb)) {
+				/*
+				 * This piece is unwritten, or we're not
+				 * using unwritten extents.  Skip over it.
+				 */
+				ASSERT(bno >= mod);
+				bno -= mod > del.br_blockcount ?
+					del.br_blockcount : mod;
+				if (bno < got.br_startoff) {
+					if (--lastx >= 0)
+						xfs_bmbt_get_all(--ep, &got);
+				}
+				continue;
+			}
+			/*
+			 * It's written, turn it unwritten.
+			 * This is better than zeroing it.
+			 */
+			ASSERT(del.br_state == XFS_EXT_NORM);
+			ASSERT(xfs_trans_get_block_res(tp) > 0);
+			/*
+			 * If this spans a realtime extent boundary,
+			 * chop it back to the start of the one we end at.
+			 */
+			if (del.br_blockcount > mod) {
+				del.br_startoff += del.br_blockcount - mod;
+				del.br_startblock += del.br_blockcount - mod;
+				del.br_blockcount = mod;
+			}
+			del.br_state = XFS_EXT_UNWRITTEN;
+			error = xfs_bmap_add_extent(ip, lastx, &cur, &del,
+				firstblock, flist, &logflags, XFS_DATA_FORK, 0);
+			if (error)
+				goto error0;
+			goto nodelete;
+		}
+		if (isrt && (mod = do_mod(del.br_startblock, mp->m_sb.sb_rextsize))) {
+			/*
+			 * Realtime extent is lined up at the end but not
+			 * at the front.  We'll get rid of full extents if
+			 * we can.
+			 */
+			mod = mp->m_sb.sb_rextsize - mod;
+			if (del.br_blockcount > mod) {
+				del.br_blockcount -= mod;
+				del.br_startoff += mod;
+				del.br_startblock += mod;
+			} else if ((del.br_startoff == start &&
+				    (del.br_state == XFS_EXT_UNWRITTEN ||
+				     xfs_trans_get_block_res(tp) == 0)) ||
+				   !XFS_SB_VERSION_HASEXTFLGBIT(&mp->m_sb)) {
+				/*
+				 * Can't make it unwritten.  There isn't
+				 * a full extent here so just skip it.
+				 */
+				ASSERT(bno >= del.br_blockcount);
+				bno -= del.br_blockcount;
+				if (bno < got.br_startoff) {
+					if (--lastx >= 0)
+						xfs_bmbt_get_all(--ep, &got);
+				}
+				continue;
+			} else if (del.br_state == XFS_EXT_UNWRITTEN) {
+				/*
+				 * This one is already unwritten.
+				 * It must have a written left neighbor.
+				 * Unwrite the killed part of that one and
+				 * try again.
+				 */
+				ASSERT(lastx > 0);
+				xfs_bmbt_get_all(ep - 1, &prev);
+				ASSERT(prev.br_state == XFS_EXT_NORM);
+				ASSERT(!ISNULLSTARTBLOCK(prev.br_startblock));
+				ASSERT(del.br_startblock ==
+				       prev.br_startblock + prev.br_blockcount);
+				if (prev.br_startoff < start) {
+					mod = start - prev.br_startoff;
+					prev.br_blockcount -= mod;
+					prev.br_startblock += mod;
+					prev.br_startoff = start;
+				}
+				prev.br_state = XFS_EXT_UNWRITTEN;
+				error = xfs_bmap_add_extent(ip, lastx - 1, &cur,
+					&prev, firstblock, flist, &logflags,
+					XFS_DATA_FORK, 0);
+				if (error)
+					goto error0;
+				goto nodelete;
+			} else {
+				ASSERT(del.br_state == XFS_EXT_NORM);
+				del.br_state = XFS_EXT_UNWRITTEN;
+				error = xfs_bmap_add_extent(ip, lastx, &cur,
+					&del, firstblock, flist, &logflags,
+					XFS_DATA_FORK, 0);
+				if (error)
+					goto error0;
+				goto nodelete;
+			}
+		}
+		if (wasdel) {
+			ASSERT(STARTBLOCKVAL(del.br_startblock) > 0);
+			xfs_mod_incore_sb(mp, XFS_SBS_FDBLOCKS,
+				(int)del.br_blockcount, rsvd);
+			/* Unreserve our quota space */
+			XFS_TRANS_RESERVE_QUOTA_NBLKS(
+				mp, NULL, ip, -((long)del.br_blockcount), 0,
+				isrt ?	XFS_QMOPT_RES_RTBLKS :
+					XFS_QMOPT_RES_REGBLKS);
+			ip->i_delayed_blks -= del.br_blockcount;
+			if (cur)
+				cur->bc_private.b.flags |=
+					XFS_BTCUR_BPRV_WASDEL;
+		} else if (cur)
+			cur->bc_private.b.flags &= ~XFS_BTCUR_BPRV_WASDEL;
+		/*
+		 * If it's the case where the directory code is running
+		 * with no block reservation, and the deleted block is in
+		 * the middle of its extent, and the resulting insert
+		 * of an extent would cause transformation to btree format,
+		 * then reject it.  The calling code will then swap
+		 * blocks around instead.
+		 * We have to do this now, rather than waiting for the
+		 * conversion to btree format, since the transaction
+		 * will be dirty.
+		 */
+		if (!wasdel && xfs_trans_get_block_res(tp) == 0 &&
+		    XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_EXTENTS &&
+		    XFS_IFORK_NEXTENTS(ip, whichfork) >= ifp->if_ext_max &&
+		    del.br_startoff > got.br_startoff &&
+		    del.br_startoff + del.br_blockcount <
+		    got.br_startoff + got.br_blockcount) {
+			error = XFS_ERROR(ENOSPC);
+			goto error0;
+		}
+		error = xfs_bmap_del_extent(ip, tp, lastx, flist, cur, &del,
+			&tmp_logflags, whichfork, rsvd);
+		logflags |= tmp_logflags;
+		if (error)
+			goto error0;
+		bno = del.br_startoff - 1;
+nodelete:
+		lastx = ifp->if_lastex;
+		/*
+		 * If not done go on to the next (previous) record.
+		 * Reset ep in case the extents array was re-alloced.
+		 */
+		ep = &ifp->if_u1.if_extents[lastx];
+		if (bno != (xfs_fileoff_t)-1 && bno >= start) {
+			if (lastx >= XFS_IFORK_NEXTENTS(ip, whichfork) ||
+			    xfs_bmbt_get_startoff(ep) > bno) {
+				lastx--;
+				ep--;
+			}
+			if (lastx >= 0)
+				xfs_bmbt_get_all(ep, &got);
+			extno++;
+		}
+	}
+	ifp->if_lastex = lastx;
+	*done = bno == (xfs_fileoff_t)-1 || bno < start || lastx < 0;
+	ASSERT(ifp->if_ext_max ==
+	       XFS_IFORK_SIZE(ip, whichfork) / (uint)sizeof(xfs_bmbt_rec_t));
+	/*
+	 * Convert to a btree if necessary.
+	 */
+	if (XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_EXTENTS &&
+	    XFS_IFORK_NEXTENTS(ip, whichfork) > ifp->if_ext_max) {
+		ASSERT(cur == NULL);
+		error = xfs_bmap_extents_to_btree(tp, ip, firstblock, flist,
+			&cur, 0, &tmp_logflags, whichfork);
+		logflags |= tmp_logflags;
+		if (error)
+			goto error0;
+	}
+	/*
+	 * transform from btree to extents, give it cur
+	 */
+	else if (XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_BTREE &&
+		 XFS_IFORK_NEXTENTS(ip, whichfork) <= ifp->if_ext_max) {
+		ASSERT(cur != NULL);
+		error = xfs_bmap_btree_to_extents(tp, ip, cur, &tmp_logflags,
+			whichfork);
+		logflags |= tmp_logflags;
+		if (error)
+			goto error0;
+	}
+	/*
+	 * transform from extents to local?
+	 */
+	ASSERT(ifp->if_ext_max ==
+	       XFS_IFORK_SIZE(ip, whichfork) / (uint)sizeof(xfs_bmbt_rec_t));
+	error = 0;
+error0:
+	/*
+	 * Log everything.  Do this after conversion, there's no point in
+	 * logging the extent list if we've converted to btree format.
+	 */
+	if ((logflags & XFS_ILOG_FEXT(whichfork)) &&
+	    XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_EXTENTS)
+		logflags &= ~XFS_ILOG_FEXT(whichfork);
+	else if ((logflags & XFS_ILOG_FBROOT(whichfork)) &&
+		 XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE)
+		logflags &= ~XFS_ILOG_FBROOT(whichfork);
+	/*
+	 * Log inode even in the error case, if the transaction
+	 * is dirty we'll need to shut down the filesystem.
+	 */
+	if (logflags)
+		xfs_trans_log_inode(tp, ip, logflags);
+	if (cur) {
+		if (!error) {
+			*firstblock = cur->bc_private.b.firstblock;
+			cur->bc_private.b.allocated = 0;
+		}
+		xfs_btree_del_cursor(cur,
+			error ? XFS_BTREE_ERROR : XFS_BTREE_NOERROR);
+	}
+	return error;
+}
+
+/*
+ * Fcntl interface to xfs_bmapi.
+ */
+int						/* error code */
+xfs_getbmap(
+	bhv_desc_t		*bdp,		/* XFS behavior descriptor*/
+	struct getbmap		*bmv,		/* user bmap structure */
+	void			__user *ap,	/* pointer to user's array */
+	int			interface)	/* interface flags */
+{
+	__int64_t		bmvend;		/* last block requested */
+	int			error;		/* return value */
+	__int64_t		fixlen;		/* length for -1 case */
+	int			i;		/* extent number */
+	xfs_inode_t		*ip;		/* xfs incore inode pointer */
+	vnode_t			*vp;		/* corresponding vnode */
+	int			lock;		/* lock state */
+	xfs_bmbt_irec_t		*map;		/* buffer for user's data */
+	xfs_mount_t		*mp;		/* file system mount point */
+	int			nex;		/* # of user extents can do */
+	int			nexleft;	/* # of user extents left */
+	int			subnex;		/* # of bmapi's can do */
+	int			nmap;		/* number of map entries */
+	struct getbmap		out;		/* output structure */
+	int			whichfork;	/* data or attr fork */
+	int			prealloced;	/* this is a file with
+						 * preallocated data space */
+	int			sh_unwritten;	/* true, if unwritten */
+						/* extents listed separately */
+	int			bmapi_flags;	/* flags for xfs_bmapi */
+	__int32_t		oflags;		/* getbmapx bmv_oflags field */
+
+	vp = BHV_TO_VNODE(bdp);
+	ip = XFS_BHVTOI(bdp);
+	mp = ip->i_mount;
+
+	whichfork = interface & BMV_IF_ATTRFORK ? XFS_ATTR_FORK : XFS_DATA_FORK;
+	sh_unwritten = (interface & BMV_IF_PREALLOC) != 0;
+
+	/*	If the BMV_IF_NO_DMAPI_READ interface bit specified, do not
+	 *	generate a DMAPI read event.  Otherwise, if the DM_EVENT_READ
+	 *	bit is set for the file, generate a read event in order
+	 *	that the DMAPI application may do its thing before we return
+	 *	the extents.  Usually this means restoring user file data to
+	 *	regions of the file that look like holes.
+	 *
+	 *	The "old behavior" (from XFS_IOC_GETBMAP) is to not specify
+	 *	BMV_IF_NO_DMAPI_READ so that read events are generated.
+	 *	If this were not true, callers of ioctl( XFS_IOC_GETBMAP )
+	 *	could misinterpret holes in a DMAPI file as true holes,
+	 *	when in fact they may represent offline user data.
+	 */
+	if (   (interface & BMV_IF_NO_DMAPI_READ) == 0
+	    && DM_EVENT_ENABLED(vp->v_vfsp, ip, DM_EVENT_READ)
+	    && whichfork == XFS_DATA_FORK) {
+
+		error = XFS_SEND_DATA(mp, DM_EVENT_READ, vp, 0, 0, 0, NULL);
+		if (error)
+			return XFS_ERROR(error);
+	}
+
+	if (whichfork == XFS_ATTR_FORK) {
+		if (XFS_IFORK_Q(ip)) {
+			if (ip->i_d.di_aformat != XFS_DINODE_FMT_EXTENTS &&
+			    ip->i_d.di_aformat != XFS_DINODE_FMT_BTREE &&
+			    ip->i_d.di_aformat != XFS_DINODE_FMT_LOCAL)
+				return XFS_ERROR(EINVAL);
+		} else if (unlikely(
+			   ip->i_d.di_aformat != 0 &&
+			   ip->i_d.di_aformat != XFS_DINODE_FMT_EXTENTS)) {
+			XFS_ERROR_REPORT("xfs_getbmap", XFS_ERRLEVEL_LOW,
+					 ip->i_mount);
+			return XFS_ERROR(EFSCORRUPTED);
+		}
+	} else if (ip->i_d.di_format != XFS_DINODE_FMT_EXTENTS &&
+		   ip->i_d.di_format != XFS_DINODE_FMT_BTREE &&
+		   ip->i_d.di_format != XFS_DINODE_FMT_LOCAL)
+		return XFS_ERROR(EINVAL);
+	if (whichfork == XFS_DATA_FORK) {
+		if (ip->i_d.di_flags & XFS_DIFLAG_PREALLOC) {
+			prealloced = 1;
+			fixlen = XFS_MAXIOFFSET(mp);
+		} else {
+			prealloced = 0;
+			fixlen = ip->i_d.di_size;
+		}
+	} else {
+		prealloced = 0;
+		fixlen = 1LL << 32;
+	}
+
+	if (bmv->bmv_length == -1) {
+		fixlen = XFS_FSB_TO_BB(mp, XFS_B_TO_FSB(mp, fixlen));
+		bmv->bmv_length = MAX( (__int64_t)(fixlen - bmv->bmv_offset),
+					(__int64_t)0);
+	} else if (bmv->bmv_length < 0)
+		return XFS_ERROR(EINVAL);
+	if (bmv->bmv_length == 0) {
+		bmv->bmv_entries = 0;
+		return 0;
+	}
+	nex = bmv->bmv_count - 1;
+	if (nex <= 0)
+		return XFS_ERROR(EINVAL);
+	bmvend = bmv->bmv_offset + bmv->bmv_length;
+
+	xfs_ilock(ip, XFS_IOLOCK_SHARED);
+
+	if (whichfork == XFS_DATA_FORK && ip->i_delayed_blks) {
+		/* xfs_fsize_t last_byte = xfs_file_last_byte(ip); */
+		VOP_FLUSH_PAGES(vp, (xfs_off_t)0, -1, 0, FI_REMAPF, error);
+	}
+
+	ASSERT(whichfork == XFS_ATTR_FORK || ip->i_delayed_blks == 0);
+
+	lock = xfs_ilock_map_shared(ip);
+
+	/*
+	 * Don't let nex be bigger than the number of extents
+	 * we can have assuming alternating holes and real extents.
+	 */
+	if (nex > XFS_IFORK_NEXTENTS(ip, whichfork) * 2 + 1)
+		nex = XFS_IFORK_NEXTENTS(ip, whichfork) * 2 + 1;
+
+	bmapi_flags = XFS_BMAPI_AFLAG(whichfork) |
+			((sh_unwritten) ? 0 : XFS_BMAPI_IGSTATE);
+
+	/*
+	 * Allocate enough space to handle "subnex" maps at a time.
+	 */
+	subnex = 16;
+	map = kmem_alloc(subnex * sizeof(*map), KM_SLEEP);
+
+	bmv->bmv_entries = 0;
+
+	if (XFS_IFORK_NEXTENTS(ip, whichfork) == 0) {
+		error = 0;
+		goto unlock_and_return;
+	}
+
+	nexleft = nex;
+
+	do {
+		nmap = (nexleft > subnex) ? subnex : nexleft;
+		error = xfs_bmapi(NULL, ip, XFS_BB_TO_FSBT(mp, bmv->bmv_offset),
+				  XFS_BB_TO_FSB(mp, bmv->bmv_length),
+				  bmapi_flags, NULL, 0, map, &nmap, NULL);
+		if (error)
+			goto unlock_and_return;
+		ASSERT(nmap <= subnex);
+
+		for (i = 0; i < nmap && nexleft && bmv->bmv_length; i++) {
+			nexleft--;
+			oflags = (map[i].br_state == XFS_EXT_UNWRITTEN) ?
+					BMV_OF_PREALLOC : 0;
+			out.bmv_offset = XFS_FSB_TO_BB(mp, map[i].br_startoff);
+			out.bmv_length = XFS_FSB_TO_BB(mp, map[i].br_blockcount);
+			ASSERT(map[i].br_startblock != DELAYSTARTBLOCK);
+			if (prealloced &&
+			    map[i].br_startblock == HOLESTARTBLOCK &&
+			    out.bmv_offset + out.bmv_length == bmvend) {
+				/*
+				 * came to hole at end of file
+				 */
+				goto unlock_and_return;
+			} else {
+				out.bmv_block =
+				    (map[i].br_startblock == HOLESTARTBLOCK) ?
+					-1 :
+					XFS_FSB_TO_DB(ip, map[i].br_startblock);
+
+				/* return either getbmap/getbmapx structure. */
+				if (interface & BMV_IF_EXTENDED) {
+					struct	getbmapx	outx;
+
+					GETBMAP_CONVERT(out,outx);
+					outx.bmv_oflags = oflags;
+					outx.bmv_unused1 = outx.bmv_unused2 = 0;
+					if (copy_to_user(ap, &outx,
+							sizeof(outx))) {
+						error = XFS_ERROR(EFAULT);
+						goto unlock_and_return;
+					}
+				} else {
+					if (copy_to_user(ap, &out,
+							sizeof(out))) {
+						error = XFS_ERROR(EFAULT);
+						goto unlock_and_return;
+					}
+				}
+				bmv->bmv_offset =
+					out.bmv_offset + out.bmv_length;
+				bmv->bmv_length = MAX((__int64_t)0,
+					(__int64_t)(bmvend - bmv->bmv_offset));
+				bmv->bmv_entries++;
+				ap = (interface & BMV_IF_EXTENDED) ?
+						(void __user *)
+					((struct getbmapx __user *)ap + 1) :
+						(void __user *)
+					((struct getbmap __user *)ap + 1);
+			}
+		}
+	} while (nmap && nexleft && bmv->bmv_length);
+
+unlock_and_return:
+	xfs_iunlock_map_shared(ip, lock);
+	xfs_iunlock(ip, XFS_IOLOCK_SHARED);
+
+	kmem_free(map, subnex * sizeof(*map));
+
+	return error;
+}
+
+/*
+ * Check the last inode extent to determine whether this allocation will result
+ * in blocks being allocated at the end of the file. When we allocate new data
+ * blocks at the end of the file which do not start at the previous data block,
+ * we will try to align the new blocks at stripe unit boundaries.
+ */
+int					/* error */
+xfs_bmap_isaeof(
+	xfs_inode_t	*ip,		/* incore inode pointer */
+	xfs_fileoff_t   off,		/* file offset in fsblocks */
+	int             whichfork,	/* data or attribute fork */
+	char		*aeof)		/* return value */
+{
+	int		error;		/* error return value */
+	xfs_ifork_t	*ifp;		/* inode fork pointer */
+	xfs_bmbt_rec_t	*lastrec;	/* extent list entry pointer */
+	xfs_extnum_t	nextents;	/* size of extent list */
+	xfs_bmbt_irec_t	s;		/* expanded extent list entry */
+
+	ASSERT(whichfork == XFS_DATA_FORK);
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	if (!(ifp->if_flags & XFS_IFEXTENTS) &&
+	    (error = xfs_iread_extents(NULL, ip, whichfork)))
+		return error;
+	nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+	if (nextents == 0) {
+		*aeof = 1;
+		return 0;
+	}
+	/*
+	 * Go to the last extent
+	 */
+	lastrec = &ifp->if_u1.if_extents[nextents - 1];
+	xfs_bmbt_get_all(lastrec, &s);
+	/*
+	 * Check we are allocating in the last extent (for delayed allocations)
+	 * or past the last extent for non-delayed allocations.
+	 */
+	*aeof = (off >= s.br_startoff &&
+		 off < s.br_startoff + s.br_blockcount &&
+		 ISNULLSTARTBLOCK(s.br_startblock)) ||
+		off >= s.br_startoff + s.br_blockcount;
+	return 0;
+}
+
+/*
+ * Check if the endoff is outside the last extent. If so the caller will grow
+ * the allocation to a stripe unit boundary.
+ */
+int					/* error */
+xfs_bmap_eof(
+	xfs_inode_t	*ip,		/* incore inode pointer */
+	xfs_fileoff_t	endoff,		/* file offset in fsblocks */
+	int		whichfork,	/* data or attribute fork */
+	int		*eof)		/* result value */
+{
+	xfs_fsblock_t	blockcount;	/* extent block count */
+	int		error;		/* error return value */
+	xfs_ifork_t	*ifp;		/* inode fork pointer */
+	xfs_bmbt_rec_t	*lastrec;	/* extent list entry pointer */
+	xfs_extnum_t	nextents;	/* size of extent list */
+	xfs_fileoff_t	startoff;	/* extent starting file offset */
+
+	ASSERT(whichfork == XFS_DATA_FORK);
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	if (!(ifp->if_flags & XFS_IFEXTENTS) &&
+	    (error = xfs_iread_extents(NULL, ip, whichfork)))
+		return error;
+	nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+	if (nextents == 0) {
+		*eof = 1;
+		return 0;
+	}
+	/*
+	 * Go to the last extent
+	 */
+	lastrec = &ifp->if_u1.if_extents[nextents - 1];
+	startoff = xfs_bmbt_get_startoff(lastrec);
+	blockcount = xfs_bmbt_get_blockcount(lastrec);
+	*eof = endoff >= startoff + blockcount;
+	return 0;
+}
+
+#ifdef DEBUG
+/*
+ * Check that the extents list for the inode ip is in the right order.
+ */
+STATIC void
+xfs_bmap_check_extents(
+	xfs_inode_t		*ip,		/* incore inode pointer */
+	int			whichfork)	/* data or attr fork */
+{
+	xfs_bmbt_rec_t		*base;		/* base of extents list */
+	xfs_bmbt_rec_t		*ep;		/* current extent entry */
+	xfs_ifork_t		*ifp;		/* inode fork pointer */
+	xfs_extnum_t		nextents;	/* number of extents in list */
+
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	ASSERT(ifp->if_flags & XFS_IFEXTENTS);
+	base = ifp->if_u1.if_extents;
+	nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+	for (ep = base; ep < &base[nextents - 1]; ep++) {
+		xfs_btree_check_rec(XFS_BTNUM_BMAP, (void *)ep,
+			(void *)(ep + 1));
+	}
+}
+
+STATIC
+xfs_buf_t *
+xfs_bmap_get_bp(
+	xfs_btree_cur_t         *cur,
+	xfs_fsblock_t		bno)
+{
+	int i;
+	xfs_buf_t *bp;
+
+	if (!cur)
+		return(NULL);
+
+	bp = NULL;
+	for(i = 0; i < XFS_BTREE_MAXLEVELS; i++) {
+		bp = cur->bc_bufs[i];
+		if (!bp) break;
+		if (XFS_BUF_ADDR(bp) == bno)
+			break;	/* Found it */
+	}
+	if (i == XFS_BTREE_MAXLEVELS)
+		bp = NULL;
+
+	if (!bp) { /* Chase down all the log items to see if the bp is there */
+		xfs_log_item_chunk_t    *licp;
+		xfs_trans_t		*tp;
+
+		tp = cur->bc_tp;
+		licp = &tp->t_items;
+		while (!bp && licp != NULL) {
+			if (XFS_LIC_ARE_ALL_FREE(licp)) {
+				licp = licp->lic_next;
+				continue;
+			}
+			for (i = 0; i < licp->lic_unused; i++) {
+				xfs_log_item_desc_t	*lidp;
+				xfs_log_item_t		*lip;
+				xfs_buf_log_item_t	*bip;
+				xfs_buf_t		*lbp;
+
+				if (XFS_LIC_ISFREE(licp, i)) {
+					continue;
+				}
+
+				lidp = XFS_LIC_SLOT(licp, i);
+				lip = lidp->lid_item;
+				if (lip->li_type != XFS_LI_BUF)
+					continue;
+
+				bip = (xfs_buf_log_item_t *)lip;
+				lbp = bip->bli_buf;
+
+				if (XFS_BUF_ADDR(lbp) == bno) {
+					bp = lbp;
+					break; /* Found it */
+				}
+			}
+			licp = licp->lic_next;
+		}
+	}
+	return(bp);
+}
+
+void
+xfs_check_block(
+	xfs_bmbt_block_t        *block,
+	xfs_mount_t		*mp,
+	int			root,
+	short			sz)
+{
+	int			i, j, dmxr;
+	xfs_bmbt_ptr_t		*pp, *thispa;	/* pointer to block address */
+	xfs_bmbt_key_t		*prevp, *keyp;
+
+	ASSERT(INT_GET(block->bb_level, ARCH_CONVERT) > 0);
+
+	prevp = NULL;
+	for( i = 1; i <= INT_GET(block->bb_numrecs, ARCH_CONVERT);i++) {
+		dmxr = mp->m_bmap_dmxr[0];
+
+		if (root) {
+			keyp = XFS_BMAP_BROOT_KEY_ADDR(block, i, sz);
+		} else {
+			keyp = XFS_BTREE_KEY_ADDR(mp->m_sb.sb_blocksize,
+				xfs_bmbt, block, i, dmxr);
+		}
+
+		if (prevp) {
+			xfs_btree_check_key(XFS_BTNUM_BMAP, prevp, keyp);
+		}
+		prevp = keyp;
+
+		/*
+		 * Compare the block numbers to see if there are dups.
+		 */
+
+		if (root) {
+			pp = XFS_BMAP_BROOT_PTR_ADDR(block, i, sz);
+		} else {
+			pp = XFS_BTREE_PTR_ADDR(mp->m_sb.sb_blocksize,
+				xfs_bmbt, block, i, dmxr);
+		}
+		for (j = i+1; j <= INT_GET(block->bb_numrecs, ARCH_CONVERT); j++) {
+			if (root) {
+				thispa = XFS_BMAP_BROOT_PTR_ADDR(block, j, sz);
+			} else {
+				thispa = XFS_BTREE_PTR_ADDR(mp->m_sb.sb_blocksize,
+					xfs_bmbt, block, j, dmxr);
+			}
+			if (INT_GET(*thispa, ARCH_CONVERT) ==
+			    INT_GET(*pp, ARCH_CONVERT)) {
+				cmn_err(CE_WARN, "%s: thispa(%d) == pp(%d) %Ld",
+					__FUNCTION__, j, i,
+					INT_GET(*thispa, ARCH_CONVERT));
+				panic("%s: ptrs are equal in node\n",
+					__FUNCTION__);
+			}
+		}
+	}
+}
+
+/*
+ * Check that the extents for the inode ip are in the right order in all
+ * btree leaves.
+ */
+
+STATIC void
+xfs_bmap_check_leaf_extents(
+	xfs_btree_cur_t		*cur,	/* btree cursor or null */
+	xfs_inode_t		*ip,		/* incore inode pointer */
+	int			whichfork)	/* data or attr fork */
+{
+	xfs_bmbt_block_t	*block;	/* current btree block */
+	xfs_fsblock_t		bno;	/* block # of "block" */
+	xfs_buf_t		*bp;	/* buffer for "block" */
+	int			error;	/* error return value */
+	xfs_extnum_t		i=0;	/* index into the extents list */
+	xfs_ifork_t		*ifp;	/* fork structure */
+	int			level;	/* btree level, for checking */
+	xfs_mount_t		*mp;	/* file system mount structure */
+	xfs_bmbt_ptr_t		*pp;	/* pointer to block address */
+	xfs_bmbt_rec_t		*ep, *lastp;	/* extent pointers in block entry */
+	int			bp_release = 0;
+
+	if (XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE) {
+		return;
+	}
+
+	bno = NULLFSBLOCK;
+	mp = ip->i_mount;
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	block = ifp->if_broot;
+	/*
+	 * Root level must use BMAP_BROOT_PTR_ADDR macro to get ptr out.
+	 */
+	ASSERT(INT_GET(block->bb_level, ARCH_CONVERT) > 0);
+	level = INT_GET(block->bb_level, ARCH_CONVERT);
+	xfs_check_block(block, mp, 1, ifp->if_broot_bytes);
+	pp = XFS_BMAP_BROOT_PTR_ADDR(block, 1, ifp->if_broot_bytes);
+	ASSERT(INT_GET(*pp, ARCH_CONVERT) != NULLDFSBNO);
+	ASSERT(XFS_FSB_TO_AGNO(mp, INT_GET(*pp, ARCH_CONVERT)) < mp->m_sb.sb_agcount);
+	ASSERT(XFS_FSB_TO_AGBNO(mp, INT_GET(*pp, ARCH_CONVERT)) < mp->m_sb.sb_agblocks);
+	bno = INT_GET(*pp, ARCH_CONVERT);
+	/*
+	 * Go down the tree until leaf level is reached, following the first
+	 * pointer (leftmost) at each level.
+	 */
+	while (level-- > 0) {
+		/* See if buf is in cur first */
+		bp = xfs_bmap_get_bp(cur, XFS_FSB_TO_DADDR(mp, bno));
+		if (bp) {
+			bp_release = 0;
+		} else {
+			bp_release = 1;
+		}
+		if (!bp && (error = xfs_btree_read_bufl(mp, NULL, bno, 0, &bp,
+				XFS_BMAP_BTREE_REF)))
+			goto error_norelse;
+		block = XFS_BUF_TO_BMBT_BLOCK(bp);
+		XFS_WANT_CORRUPTED_GOTO(
+			XFS_BMAP_SANITY_CHECK(mp, block, level),
+			error0);
+		if (level == 0)
+			break;
+
+		/*
+		 * Check this block for basic sanity (increasing keys and
+		 * no duplicate blocks).
+		 */
+
+		xfs_check_block(block, mp, 0, 0);
+		pp = XFS_BTREE_PTR_ADDR(mp->m_sb.sb_blocksize, xfs_bmbt, block,
+			1, mp->m_bmap_dmxr[1]);
+		XFS_WANT_CORRUPTED_GOTO(XFS_FSB_SANITY_CHECK(mp, INT_GET(*pp, ARCH_CONVERT)), error0);
+		bno = INT_GET(*pp, ARCH_CONVERT);
+		if (bp_release) {
+			bp_release = 0;
+			xfs_trans_brelse(NULL, bp);
+		}
+	}
+
+	/*
+	 * Here with bp and block set to the leftmost leaf node in the tree.
+	 */
+	i = 0;
+
+	/*
+	 * Loop over all leaf nodes checking that all extents are in the right order.
+	 */
+	lastp = NULL;
+	for (;;) {
+		xfs_bmbt_rec_t	*frp;
+		xfs_fsblock_t	nextbno;
+		xfs_extnum_t	num_recs;
+
+
+		num_recs = INT_GET(block->bb_numrecs, ARCH_CONVERT);
+
+		/*
+		 * Read-ahead the next leaf block, if any.
+		 */
+
+		nextbno = INT_GET(block->bb_rightsib, ARCH_CONVERT);
+
+		/*
+		 * Check all the extents to make sure they are OK.
+		 * If we had a previous block, the last entry should
+		 * conform with the first entry in this one.
+		 */
+
+		frp = XFS_BTREE_REC_ADDR(mp->m_sb.sb_blocksize, xfs_bmbt,
+			block, 1, mp->m_bmap_dmxr[0]);
+
+		for (ep = frp;ep < frp + (num_recs - 1); ep++) {
+			if (lastp) {
+				xfs_btree_check_rec(XFS_BTNUM_BMAP,
+					(void *)lastp, (void *)ep);
+			}
+			xfs_btree_check_rec(XFS_BTNUM_BMAP, (void *)ep,
+				(void *)(ep + 1));
+		}
+		lastp = frp + num_recs - 1; /* For the next iteration */
+
+		i += num_recs;
+		if (bp_release) {
+			bp_release = 0;
+			xfs_trans_brelse(NULL, bp);
+		}
+		bno = nextbno;
+		/*
+		 * If we've reached the end, stop.
+		 */
+		if (bno == NULLFSBLOCK)
+			break;
+
+		bp = xfs_bmap_get_bp(cur, XFS_FSB_TO_DADDR(mp, bno));
+		if (bp) {
+			bp_release = 0;
+		} else {
+			bp_release = 1;
+		}
+		if (!bp && (error = xfs_btree_read_bufl(mp, NULL, bno, 0, &bp,
+				XFS_BMAP_BTREE_REF)))
+			goto error_norelse;
+		block = XFS_BUF_TO_BMBT_BLOCK(bp);
+	}
+	if (bp_release) {
+		bp_release = 0;
+		xfs_trans_brelse(NULL, bp);
+	}
+	return;
+
+error0:
+	cmn_err(CE_WARN, "%s: at error0", __FUNCTION__);
+	if (bp_release)
+		xfs_trans_brelse(NULL, bp);
+error_norelse:
+	cmn_err(CE_WARN, "%s: BAD after btree leaves for %d extents",
+		i, __FUNCTION__);
+	panic("%s: CORRUPTED BTREE OR SOMETHING", __FUNCTION__);
+	return;
+}
+#endif
+
+/*
+ * Count fsblocks of the given fork.
+ */
+int						/* error */
+xfs_bmap_count_blocks(
+	xfs_trans_t		*tp,		/* transaction pointer */
+	xfs_inode_t		*ip,		/* incore inode */
+	int			whichfork,	/* data or attr fork */
+	int			*count)		/* out: count of blocks */
+{
+	xfs_bmbt_block_t	*block;	/* current btree block */
+	xfs_fsblock_t		bno;	/* block # of "block" */
+	xfs_ifork_t		*ifp;	/* fork structure */
+	int			level;	/* btree level, for checking */
+	xfs_mount_t		*mp;	/* file system mount structure */
+	xfs_bmbt_ptr_t		*pp;	/* pointer to block address */
+
+	bno = NULLFSBLOCK;
+	mp = ip->i_mount;
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	if ( XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_EXTENTS ) {
+		if (unlikely(xfs_bmap_count_leaves(ifp->if_u1.if_extents,
+			ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t),
+			count) < 0)) {
+			XFS_ERROR_REPORT("xfs_bmap_count_blocks(1)",
+					 XFS_ERRLEVEL_LOW, mp);
+			return XFS_ERROR(EFSCORRUPTED);
+		}
+		return 0;
+	}
+
+	/*
+	 * Root level must use BMAP_BROOT_PTR_ADDR macro to get ptr out.
+	 */
+	block = ifp->if_broot;
+	ASSERT(INT_GET(block->bb_level, ARCH_CONVERT) > 0);
+	level = INT_GET(block->bb_level, ARCH_CONVERT);
+	pp = XFS_BMAP_BROOT_PTR_ADDR(block, 1, ifp->if_broot_bytes);
+	ASSERT(INT_GET(*pp, ARCH_CONVERT) != NULLDFSBNO);
+	ASSERT(XFS_FSB_TO_AGNO(mp, INT_GET(*pp, ARCH_CONVERT)) < mp->m_sb.sb_agcount);
+	ASSERT(XFS_FSB_TO_AGBNO(mp, INT_GET(*pp, ARCH_CONVERT)) < mp->m_sb.sb_agblocks);
+	bno = INT_GET(*pp, ARCH_CONVERT);
+
+	if (unlikely(xfs_bmap_count_tree(mp, tp, bno, level, count) < 0)) {
+		XFS_ERROR_REPORT("xfs_bmap_count_blocks(2)", XFS_ERRLEVEL_LOW,
+				 mp);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+
+	return 0;
+}
+
+/*
+ * Recursively walks each level of a btree
+ * to count total fsblocks is use.
+ */
+int                                     /* error */
+xfs_bmap_count_tree(
+	xfs_mount_t     *mp,            /* file system mount point */
+	xfs_trans_t     *tp,            /* transaction pointer */
+	xfs_fsblock_t   blockno,	/* file system block number */
+	int             levelin,	/* level in btree */
+	int		*count)		/* Count of blocks */
+{
+	int			error;
+	xfs_buf_t		*bp, *nbp;
+	int			level = levelin;
+	xfs_bmbt_ptr_t          *pp;
+	xfs_fsblock_t           bno = blockno;
+	xfs_fsblock_t		nextbno;
+	xfs_bmbt_block_t        *block, *nextblock;
+	int			numrecs;
+	xfs_bmbt_rec_t		*frp;
+
+	if ((error = xfs_btree_read_bufl(mp, tp, bno, 0, &bp, XFS_BMAP_BTREE_REF)))
+		return error;
+	*count += 1;
+	block = XFS_BUF_TO_BMBT_BLOCK(bp);
+
+	if (--level) {
+		/* Not at node above leafs, count this level of nodes */
+		nextbno = INT_GET(block->bb_rightsib, ARCH_CONVERT);
+		while (nextbno != NULLFSBLOCK) {
+			if ((error = xfs_btree_read_bufl(mp, tp, nextbno,
+				0, &nbp, XFS_BMAP_BTREE_REF)))
+				return error;
+			*count += 1;
+			nextblock = XFS_BUF_TO_BMBT_BLOCK(nbp);
+			nextbno = INT_GET(nextblock->bb_rightsib, ARCH_CONVERT);
+			xfs_trans_brelse(tp, nbp);
+		}
+
+		/* Dive to the next level */
+		pp = XFS_BTREE_PTR_ADDR(mp->m_sb.sb_blocksize,
+			xfs_bmbt, block, 1, mp->m_bmap_dmxr[1]);
+		bno = INT_GET(*pp, ARCH_CONVERT);
+		if (unlikely((error =
+		     xfs_bmap_count_tree(mp, tp, bno, level, count)) < 0)) {
+			xfs_trans_brelse(tp, bp);
+			XFS_ERROR_REPORT("xfs_bmap_count_tree(1)",
+					 XFS_ERRLEVEL_LOW, mp);
+			return XFS_ERROR(EFSCORRUPTED);
+		}
+		xfs_trans_brelse(tp, bp);
+	} else {
+		/* count all level 1 nodes and their leaves */
+		for (;;) {
+			nextbno = INT_GET(block->bb_rightsib, ARCH_CONVERT);
+			numrecs = INT_GET(block->bb_numrecs, ARCH_CONVERT);
+			frp = XFS_BTREE_REC_ADDR(mp->m_sb.sb_blocksize,
+				xfs_bmbt, block, 1, mp->m_bmap_dmxr[0]);
+			if (unlikely(xfs_bmap_count_leaves(frp, numrecs, count) < 0)) {
+				xfs_trans_brelse(tp, bp);
+				XFS_ERROR_REPORT("xfs_bmap_count_tree(2)",
+						 XFS_ERRLEVEL_LOW, mp);
+				return XFS_ERROR(EFSCORRUPTED);
+			}
+			xfs_trans_brelse(tp, bp);
+			if (nextbno == NULLFSBLOCK)
+				break;
+			bno = nextbno;
+			if ((error = xfs_btree_read_bufl(mp, tp, bno, 0, &bp,
+				XFS_BMAP_BTREE_REF)))
+				return error;
+			*count += 1;
+			block = XFS_BUF_TO_BMBT_BLOCK(bp);
+		}
+	}
+	return 0;
+}
+
+/*
+ * Count leaf blocks given a pointer to an extent list.
+ */
+int
+xfs_bmap_count_leaves(
+	xfs_bmbt_rec_t		*frp,
+	int			numrecs,
+	int			*count)
+{
+	int		b;
+
+	for ( b = 1; b <= numrecs; b++, frp++)
+		*count += xfs_bmbt_disk_get_blockcount(frp);
+	return 0;
+}
diff --git a/fs/xfs/xfs_bmap.h b/fs/xfs/xfs_bmap.h
new file mode 100644
index 00000000000000..f1bc22fb26aec4
--- /dev/null
+++ b/fs/xfs/xfs_bmap.h
@@ -0,0 +1,379 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_BMAP_H__
+#define	__XFS_BMAP_H__
+
+struct getbmap;
+struct xfs_bmbt_irec;
+struct xfs_inode;
+struct xfs_mount;
+struct xfs_trans;
+
+/*
+ * List of extents to be free "later".
+ * The list is kept sorted on xbf_startblock.
+ */
+typedef struct xfs_bmap_free_item
+{
+	xfs_fsblock_t		xbfi_startblock;/* starting fs block number */
+	xfs_extlen_t		xbfi_blockcount;/* number of blocks in extent */
+	struct xfs_bmap_free_item *xbfi_next;	/* link to next entry */
+} xfs_bmap_free_item_t;
+
+/*
+ * Header for free extent list.
+ */
+typedef	struct xfs_bmap_free
+{
+	xfs_bmap_free_item_t	*xbf_first;	/* list of to-be-free extents */
+	int			xbf_count;	/* count of items on list */
+	int			xbf_low;	/* kludge: alloc in low mode */
+} xfs_bmap_free_t;
+
+#define	XFS_BMAP_MAX_NMAP	4
+
+/*
+ * Flags for xfs_bmapi
+ */
+#define	XFS_BMAPI_WRITE		0x001	/* write operation: allocate space */
+#define XFS_BMAPI_DELAY		0x002	/* delayed write operation */
+#define XFS_BMAPI_ENTIRE	0x004	/* return entire extent, not trimmed */
+#define XFS_BMAPI_METADATA	0x008	/* mapping metadata not user data */
+#define XFS_BMAPI_EXACT		0x010	/* allocate only to spec'd bounds */
+#define XFS_BMAPI_ATTRFORK	0x020	/* use attribute fork not data */
+#define XFS_BMAPI_ASYNC		0x040	/* bunmapi xactions can be async */
+#define XFS_BMAPI_RSVBLOCKS	0x080	/* OK to alloc. reserved data blocks */
+#define	XFS_BMAPI_PREALLOC	0x100	/* preallocation op: unwritten space */
+#define	XFS_BMAPI_IGSTATE	0x200	/* Ignore state - */
+					/* combine contig. space */
+#define	XFS_BMAPI_CONTIG	0x400	/* must allocate only one extent */
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAPI_AFLAG)
+int xfs_bmapi_aflag(int w);
+#define	XFS_BMAPI_AFLAG(w)	xfs_bmapi_aflag(w)
+#else
+#define	XFS_BMAPI_AFLAG(w)	((w) == XFS_ATTR_FORK ? XFS_BMAPI_ATTRFORK : 0)
+#endif
+
+/*
+ * Special values for xfs_bmbt_irec_t br_startblock field.
+ */
+#define	DELAYSTARTBLOCK		((xfs_fsblock_t)-1LL)
+#define	HOLESTARTBLOCK		((xfs_fsblock_t)-2LL)
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_INIT)
+void xfs_bmap_init(xfs_bmap_free_t *flp, xfs_fsblock_t *fbp);
+#define	XFS_BMAP_INIT(flp,fbp)	xfs_bmap_init(flp,fbp)
+#else
+#define	XFS_BMAP_INIT(flp,fbp)	\
+	((flp)->xbf_first = NULL, (flp)->xbf_count = 0, \
+	 (flp)->xbf_low = 0, *(fbp) = NULLFSBLOCK)
+#endif
+
+/*
+ * Argument structure for xfs_bmap_alloc.
+ */
+typedef struct xfs_bmalloca {
+	xfs_fsblock_t		firstblock; /* i/o first block allocated */
+	xfs_fsblock_t		rval;	/* starting block of new extent */
+	xfs_fileoff_t		off;	/* offset in file filling in */
+	struct xfs_trans	*tp;	/* transaction pointer */
+	struct xfs_inode	*ip;	/* incore inode pointer */
+	struct xfs_bmbt_irec	*prevp;	/* extent before the new one */
+	struct xfs_bmbt_irec	*gotp;	/* extent after, or delayed */
+	xfs_extlen_t		alen;	/* i/o length asked/allocated */
+	xfs_extlen_t		total;	/* total blocks needed for xaction */
+	xfs_extlen_t		minlen;	/* mininum allocation size (blocks) */
+	xfs_extlen_t		minleft; /* amount must be left after alloc */
+	char			eof;	/* set if allocating past last extent */
+	char			wasdel;	/* replacing a delayed allocation */
+	char			userdata;/* set if is user data */
+	char			low;	/* low on space, using seq'l ags */
+	char			aeof;   /* allocated space at eof */
+} xfs_bmalloca_t;
+
+#ifdef __KERNEL__
+
+#if defined(XFS_BMAP_TRACE)
+/*
+ * Trace operations for bmap extent tracing
+ */
+#define	XFS_BMAP_KTRACE_DELETE	1
+#define	XFS_BMAP_KTRACE_INSERT	2
+#define	XFS_BMAP_KTRACE_PRE_UP	3
+#define	XFS_BMAP_KTRACE_POST_UP	4
+
+#define	XFS_BMAP_TRACE_SIZE	4096	/* size of global trace buffer */
+#define	XFS_BMAP_KTRACE_SIZE	32	/* size of per-inode trace buffer */
+extern ktrace_t	*xfs_bmap_trace_buf;
+
+/*
+ * Add bmap trace insert entries for all the contents of the extent list.
+ */
+void
+xfs_bmap_trace_exlist(
+	char			*fname,		/* function name */
+	struct xfs_inode	*ip,		/* incore inode pointer */
+	xfs_extnum_t		cnt,		/* count of entries in list */
+	int			whichfork);	/* data or attr fork */
+#else
+#define	xfs_bmap_trace_exlist(f,ip,c,w)
+#endif
+
+/*
+ * Convert inode from non-attributed to attributed.
+ * Must not be in a transaction, ip must not be locked.
+ */
+int					/* error code */
+xfs_bmap_add_attrfork(
+	struct xfs_inode	*ip,	/* incore inode pointer */
+	int					rsvd);	/* flag for reserved block allocation */
+
+/*
+ * Add the extent to the list of extents to be free at transaction end.
+ * The list is maintained sorted (by block number).
+ */
+void
+xfs_bmap_add_free(
+	xfs_fsblock_t		bno,		/* fs block number of extent */
+	xfs_filblks_t		len,		/* length of extent */
+	xfs_bmap_free_t		*flist,		/* list of extents */
+	struct xfs_mount	*mp);		/* mount point structure */
+
+/*
+ * Routine to clean up the free list data structure when
+ * an error occurs during a transaction.
+ */
+void
+xfs_bmap_cancel(
+	xfs_bmap_free_t		*flist);	/* free list to clean up */
+
+/*
+ * Compute and fill in the value of the maximum depth of a bmap btree
+ * in this filesystem.  Done once, during mount.
+ */
+void
+xfs_bmap_compute_maxlevels(
+	struct xfs_mount	*mp,	/* file system mount structure */
+	int			whichfork);	/* data or attr fork */
+
+/*
+ * Routine to be called at transaction's end by xfs_bmapi, xfs_bunmapi
+ * caller.  Frees all the extents that need freeing, which must be done
+ * last due to locking considerations.
+ *
+ * Return 1 if the given transaction was committed and a new one allocated,
+ * and 0 otherwise.
+ */
+int						/* error */
+xfs_bmap_finish(
+	struct xfs_trans	**tp,		/* transaction pointer addr */
+	xfs_bmap_free_t		*flist,		/* i/o: list extents to free */
+	xfs_fsblock_t		firstblock,	/* controlled a.g. for allocs */
+	int			*committed);	/* xact committed or not */
+
+/*
+ * Returns the file-relative block number of the first unused block in the file.
+ * This is the lowest-address hole if the file has holes, else the first block
+ * past the end of file.
+ */
+int						/* error */
+xfs_bmap_first_unused(
+	struct xfs_trans	*tp,		/* transaction pointer */
+	struct xfs_inode	*ip,		/* incore inode */
+	xfs_extlen_t		len,		/* size of hole to find */
+	xfs_fileoff_t		*unused,	/* unused block num */
+	int			whichfork);	/* data or attr fork */
+
+/*
+ * Returns the file-relative block number of the last block + 1 before
+ * last_block (input value) in the file.
+ * This is not based on i_size, it is based on the extent list.
+ * Returns 0 for local files, as they do not have an extent list.
+ */
+int						/* error */
+xfs_bmap_last_before(
+	struct xfs_trans	*tp,		/* transaction pointer */
+	struct xfs_inode	*ip,		/* incore inode */
+	xfs_fileoff_t		*last_block,	/* last block */
+	int			whichfork);	/* data or attr fork */
+
+/*
+ * Returns the file-relative block number of the first block past eof in
+ * the file.  This is not based on i_size, it is based on the extent list.
+ * Returns 0 for local files, as they do not have an extent list.
+ */
+int						/* error */
+xfs_bmap_last_offset(
+	struct xfs_trans	*tp,		/* transaction pointer */
+	struct xfs_inode	*ip,		/* incore inode */
+	xfs_fileoff_t		*unused,	/* last block num */
+	int			whichfork);	/* data or attr fork */
+
+/*
+ * Returns whether the selected fork of the inode has exactly one
+ * block or not.  For the data fork we check this matches di_size,
+ * implying the file's range is 0..bsize-1.
+ */
+int
+xfs_bmap_one_block(
+	struct xfs_inode	*ip,		/* incore inode */
+	int			whichfork);	/* data or attr fork */
+
+/*
+ * Read in the extents to iu_extents.
+ * All inode fields are set up by caller, we just traverse the btree
+ * and copy the records in.
+ */
+int						/* error */
+xfs_bmap_read_extents(
+	struct xfs_trans	*tp,		/* transaction pointer */
+	struct xfs_inode	*ip,		/* incore inode */
+	int			whichfork);	/* data or attr fork */
+
+/*
+ * Map file blocks to filesystem blocks.
+ * File range is given by the bno/len pair.
+ * Adds blocks to file if a write ("flags & XFS_BMAPI_WRITE" set)
+ * into a hole or past eof.
+ * Only allocates blocks from a single allocation group,
+ * to avoid locking problems.
+ * The returned value in "firstblock" from the first call in a transaction
+ * must be remembered and presented to subsequent calls in "firstblock".
+ * An upper bound for the number of blocks to be allocated is supplied to
+ * the first call in "total"; if no allocation group has that many free
+ * blocks then the call will fail (return NULLFSBLOCK in "firstblock").
+ */
+int						/* error */
+xfs_bmapi(
+	struct xfs_trans	*tp,		/* transaction pointer */
+	struct xfs_inode	*ip,		/* incore inode */
+	xfs_fileoff_t		bno,		/* starting file offs. mapped */
+	xfs_filblks_t		len,		/* length to map in file */
+	int			flags,		/* XFS_BMAPI_... */
+	xfs_fsblock_t		*firstblock,	/* first allocated block
+						   controls a.g. for allocs */
+	xfs_extlen_t		total,		/* total blocks needed */
+	struct xfs_bmbt_irec	*mval,		/* output: map values */
+	int			*nmap,		/* i/o: mval size/count */
+	xfs_bmap_free_t		*flist);	/* i/o: list extents to free */
+
+/*
+ * Map file blocks to filesystem blocks, simple version.
+ * One block only, read-only.
+ * For flags, only the XFS_BMAPI_ATTRFORK flag is examined.
+ * For the other flag values, the effect is as if XFS_BMAPI_METADATA
+ * was set and all the others were clear.
+ */
+int						/* error */
+xfs_bmapi_single(
+	struct xfs_trans	*tp,		/* transaction pointer */
+	struct xfs_inode	*ip,		/* incore inode */
+	int			whichfork,	/* data or attr fork */
+	xfs_fsblock_t		*fsb,		/* output: mapped block */
+	xfs_fileoff_t		bno);		/* starting file offs. mapped */
+
+/*
+ * Unmap (remove) blocks from a file.
+ * If nexts is nonzero then the number of extents to remove is limited to
+ * that value.  If not all extents in the block range can be removed then
+ * *done is set.
+ */
+int						/* error */
+xfs_bunmapi(
+	struct xfs_trans	*tp,		/* transaction pointer */
+	struct xfs_inode	*ip,		/* incore inode */
+	xfs_fileoff_t		bno,		/* starting offset to unmap */
+	xfs_filblks_t		len,		/* length to unmap in file */
+	int			flags,		/* XFS_BMAPI_... */
+	xfs_extnum_t		nexts,		/* number of extents max */
+	xfs_fsblock_t		*firstblock,	/* first allocated block
+						   controls a.g. for allocs */
+	xfs_bmap_free_t		*flist,		/* i/o: list extents to free */
+	int			*done);		/* set if not done yet */
+
+/*
+ * Fcntl interface to xfs_bmapi.
+ */
+int						/* error code */
+xfs_getbmap(
+	bhv_desc_t		*bdp,		/* XFS behavior descriptor*/
+	struct getbmap		*bmv,		/* user bmap structure */
+	void			__user *ap,	/* pointer to user's array */
+	int			iflags);	/* interface flags */
+
+/*
+ * Check the last inode extent to determine whether this allocation will result
+ * in blocks being allocated at the end of the file. When we allocate new data
+ * blocks at the end of the file which do not start at the previous data block,
+ * we will try to align the new blocks at stripe unit boundaries.
+ */
+int
+xfs_bmap_isaeof(
+	struct xfs_inode	*ip,
+	xfs_fileoff_t		off,
+	int			whichfork,
+	char			*aeof);
+
+/*
+ * Check if the endoff is outside the last extent. If so the caller will grow
+ * the allocation to a stripe unit boundary
+ */
+int
+xfs_bmap_eof(
+	struct xfs_inode        *ip,
+	xfs_fileoff_t           endoff,
+	int                     whichfork,
+	int                     *eof);
+
+/*
+ * Count fsblocks of the given fork.
+ */
+int
+xfs_bmap_count_blocks(
+	xfs_trans_t		*tp,
+	struct xfs_inode	*ip,
+	int			whichfork,
+	int			*count);
+
+/*
+ * Check an extent list, which has just been read, for
+ * any bit in the extent flag field.
+ */
+int
+xfs_check_nostate_extents(
+	xfs_bmbt_rec_t		*ep,
+	xfs_extnum_t		num);
+
+#endif	/* __KERNEL__ */
+
+#endif	/* __XFS_BMAP_H__ */
diff --git a/fs/xfs/xfs_bmap_btree.c b/fs/xfs/xfs_bmap_btree.c
new file mode 100644
index 00000000000000..0ed189102257d0
--- /dev/null
+++ b/fs/xfs/xfs_bmap_btree.c
@@ -0,0 +1,2807 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_itable.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode_item.h"
+#include "xfs_inode.h"
+#include "xfs_alloc.h"
+#include "xfs_bit.h"
+#include "xfs_bmap.h"
+#include "xfs_error.h"
+#include "xfs_quota.h"
+
+#if defined(XFS_BMBT_TRACE)
+ktrace_t	*xfs_bmbt_trace_buf;
+#endif
+
+/*
+ * Prototypes for internal btree functions.
+ */
+
+
+STATIC int xfs_bmbt_killroot(xfs_btree_cur_t *);
+STATIC void xfs_bmbt_log_keys(xfs_btree_cur_t *, xfs_buf_t *, int, int);
+STATIC void xfs_bmbt_log_ptrs(xfs_btree_cur_t *, xfs_buf_t *, int, int);
+STATIC int xfs_bmbt_lshift(xfs_btree_cur_t *, int, int *);
+STATIC int xfs_bmbt_rshift(xfs_btree_cur_t *, int, int *);
+STATIC int xfs_bmbt_split(xfs_btree_cur_t *, int, xfs_fsblock_t *,
+		xfs_bmbt_key_t *, xfs_btree_cur_t **, int *);
+STATIC int xfs_bmbt_updkey(xfs_btree_cur_t *, xfs_bmbt_key_t *, int);
+
+
+#if defined(XFS_BMBT_TRACE)
+
+static char	ARGS[] = "args";
+static char	ENTRY[] = "entry";
+static char	ERROR[] = "error";
+#undef EXIT
+static char	EXIT[] = "exit";
+
+/*
+ * Add a trace buffer entry for the arguments given to the routine,
+ * generic form.
+ */
+STATIC void
+xfs_bmbt_trace_enter(
+	char		*func,
+	xfs_btree_cur_t	*cur,
+	char		*s,
+	int		type,
+	int		line,
+	__psunsigned_t	a0,
+	__psunsigned_t	a1,
+	__psunsigned_t	a2,
+	__psunsigned_t	a3,
+	__psunsigned_t	a4,
+	__psunsigned_t	a5,
+	__psunsigned_t	a6,
+	__psunsigned_t	a7,
+	__psunsigned_t	a8,
+	__psunsigned_t	a9,
+	__psunsigned_t	a10)
+{
+	xfs_inode_t	*ip;
+	int		whichfork;
+
+	ip = cur->bc_private.b.ip;
+	whichfork = cur->bc_private.b.whichfork;
+	ktrace_enter(xfs_bmbt_trace_buf,
+		(void *)((__psint_t)type | (whichfork << 8) | (line << 16)),
+		(void *)func, (void *)s, (void *)ip, (void *)cur,
+		(void *)a0, (void *)a1, (void *)a2, (void *)a3,
+		(void *)a4, (void *)a5, (void *)a6, (void *)a7,
+		(void *)a8, (void *)a9, (void *)a10);
+	ASSERT(ip->i_btrace);
+	ktrace_enter(ip->i_btrace,
+		(void *)((__psint_t)type | (whichfork << 8) | (line << 16)),
+		(void *)func, (void *)s, (void *)ip, (void *)cur,
+		(void *)a0, (void *)a1, (void *)a2, (void *)a3,
+		(void *)a4, (void *)a5, (void *)a6, (void *)a7,
+		(void *)a8, (void *)a9, (void *)a10);
+}
+/*
+ * Add a trace buffer entry for arguments, for a buffer & 1 integer arg.
+ */
+STATIC void
+xfs_bmbt_trace_argbi(
+	char		*func,
+	xfs_btree_cur_t	*cur,
+	xfs_buf_t	*b,
+	int		i,
+	int		line)
+{
+	xfs_bmbt_trace_enter(func, cur, ARGS, XFS_BMBT_KTRACE_ARGBI, line,
+		(__psunsigned_t)b, i, 0, 0,
+		0, 0, 0, 0,
+		0, 0, 0);
+}
+
+/*
+ * Add a trace buffer entry for arguments, for a buffer & 2 integer args.
+ */
+STATIC void
+xfs_bmbt_trace_argbii(
+	char		*func,
+	xfs_btree_cur_t	*cur,
+	xfs_buf_t	*b,
+	int		i0,
+	int		i1,
+	int		line)
+{
+	xfs_bmbt_trace_enter(func, cur, ARGS, XFS_BMBT_KTRACE_ARGBII, line,
+		(__psunsigned_t)b, i0, i1, 0,
+		0, 0, 0, 0,
+		0, 0, 0);
+}
+
+/*
+ * Add a trace buffer entry for arguments, for 3 block-length args
+ * and an integer arg.
+ */
+STATIC void
+xfs_bmbt_trace_argfffi(
+	char			*func,
+	xfs_btree_cur_t		*cur,
+	xfs_dfiloff_t		o,
+	xfs_dfsbno_t		b,
+	xfs_dfilblks_t		i,
+	int			j,
+	int			line)
+{
+	xfs_bmbt_trace_enter(func, cur, ARGS, XFS_BMBT_KTRACE_ARGFFFI, line,
+		o >> 32, (int)o, b >> 32, (int)b,
+		i >> 32, (int)i, (int)j, 0,
+		0, 0, 0);
+}
+
+/*
+ * Add a trace buffer entry for arguments, for one integer arg.
+ */
+STATIC void
+xfs_bmbt_trace_argi(
+	char		*func,
+	xfs_btree_cur_t	*cur,
+	int		i,
+	int		line)
+{
+	xfs_bmbt_trace_enter(func, cur, ARGS, XFS_BMBT_KTRACE_ARGI, line,
+		i, 0, 0, 0,
+		0, 0, 0, 0,
+		0, 0, 0);
+}
+
+/*
+ * Add a trace buffer entry for arguments, for int, fsblock, key.
+ */
+STATIC void
+xfs_bmbt_trace_argifk(
+	char			*func,
+	xfs_btree_cur_t		*cur,
+	int			i,
+	xfs_fsblock_t		f,
+	xfs_bmbt_key_t		*k,
+	int			line)
+{
+	xfs_dfsbno_t		d;
+	xfs_dfiloff_t		o;
+
+	d = (xfs_dfsbno_t)f;
+	o = INT_GET(k->br_startoff, ARCH_CONVERT);
+	xfs_bmbt_trace_enter(func, cur, ARGS, XFS_BMBT_KTRACE_ARGIFK, line,
+		i, d >> 32, (int)d, o >> 32,
+		(int)o, 0, 0, 0,
+		0, 0, 0);
+}
+
+/*
+ * Add a trace buffer entry for arguments, for int, fsblock, rec.
+ */
+STATIC void
+xfs_bmbt_trace_argifr(
+	char			*func,
+	xfs_btree_cur_t		*cur,
+	int			i,
+	xfs_fsblock_t		f,
+	xfs_bmbt_rec_t		*r,
+	int			line)
+{
+	xfs_dfsbno_t		b;
+	xfs_dfilblks_t		c;
+	xfs_dfsbno_t		d;
+	xfs_dfiloff_t		o;
+	xfs_bmbt_irec_t		s;
+
+	d = (xfs_dfsbno_t)f;
+	xfs_bmbt_disk_get_all(r, &s);
+	o = (xfs_dfiloff_t)s.br_startoff;
+	b = (xfs_dfsbno_t)s.br_startblock;
+	c = s.br_blockcount;
+	xfs_bmbt_trace_enter(func, cur, ARGS, XFS_BMBT_KTRACE_ARGIFR, line,
+		i, d >> 32, (int)d, o >> 32,
+		(int)o, b >> 32, (int)b, c >> 32,
+		(int)c, 0, 0);
+}
+
+/*
+ * Add a trace buffer entry for arguments, for int, key.
+ */
+STATIC void
+xfs_bmbt_trace_argik(
+	char			*func,
+	xfs_btree_cur_t		*cur,
+	int			i,
+	xfs_bmbt_key_t		*k,
+	int			line)
+{
+	xfs_dfiloff_t		o;
+
+	o = INT_GET(k->br_startoff, ARCH_CONVERT);
+	xfs_bmbt_trace_enter(func, cur, ARGS, XFS_BMBT_KTRACE_ARGIFK, line,
+		i, o >> 32, (int)o, 0,
+		0, 0, 0, 0,
+		0, 0, 0);
+}
+
+/*
+ * Add a trace buffer entry for the cursor/operation.
+ */
+STATIC void
+xfs_bmbt_trace_cursor(
+	char		*func,
+	xfs_btree_cur_t	*cur,
+	char		*s,
+	int		line)
+{
+	xfs_bmbt_rec_t	r;
+
+	xfs_bmbt_set_all(&r, &cur->bc_rec.b);
+	xfs_bmbt_trace_enter(func, cur, s, XFS_BMBT_KTRACE_CUR, line,
+		(cur->bc_nlevels << 24) | (cur->bc_private.b.flags << 16) |
+		cur->bc_private.b.allocated,
+		INT_GET(r.l0, ARCH_CONVERT) >> 32, (int)INT_GET(r.l0, ARCH_CONVERT), INT_GET(r.l1, ARCH_CONVERT) >> 32, (int)INT_GET(r.l1, ARCH_CONVERT),
+		(unsigned long)cur->bc_bufs[0], (unsigned long)cur->bc_bufs[1],
+		(unsigned long)cur->bc_bufs[2], (unsigned long)cur->bc_bufs[3],
+		(cur->bc_ptrs[0] << 16) | cur->bc_ptrs[1],
+		(cur->bc_ptrs[2] << 16) | cur->bc_ptrs[3]);
+}
+
+#define	XFS_BMBT_TRACE_ARGBI(c,b,i)	\
+	xfs_bmbt_trace_argbi(fname, c, b, i, __LINE__)
+#define	XFS_BMBT_TRACE_ARGBII(c,b,i,j)	\
+	xfs_bmbt_trace_argbii(fname, c, b, i, j, __LINE__)
+#define	XFS_BMBT_TRACE_ARGFFFI(c,o,b,i,j)	\
+	xfs_bmbt_trace_argfffi(fname, c, o, b, i, j, __LINE__)
+#define	XFS_BMBT_TRACE_ARGI(c,i)	\
+	xfs_bmbt_trace_argi(fname, c, i, __LINE__)
+#define	XFS_BMBT_TRACE_ARGIFK(c,i,f,k)	\
+	xfs_bmbt_trace_argifk(fname, c, i, f, k, __LINE__)
+#define	XFS_BMBT_TRACE_ARGIFR(c,i,f,r)	\
+	xfs_bmbt_trace_argifr(fname, c, i, f, r, __LINE__)
+#define	XFS_BMBT_TRACE_ARGIK(c,i,k)	\
+	xfs_bmbt_trace_argik(fname, c, i, k, __LINE__)
+#define	XFS_BMBT_TRACE_CURSOR(c,s)	\
+	xfs_bmbt_trace_cursor(fname, c, s, __LINE__)
+#else
+#define	XFS_BMBT_TRACE_ARGBI(c,b,i)
+#define	XFS_BMBT_TRACE_ARGBII(c,b,i,j)
+#define	XFS_BMBT_TRACE_ARGFFFI(c,o,b,i,j)
+#define	XFS_BMBT_TRACE_ARGI(c,i)
+#define	XFS_BMBT_TRACE_ARGIFK(c,i,f,k)
+#define	XFS_BMBT_TRACE_ARGIFR(c,i,f,r)
+#define	XFS_BMBT_TRACE_ARGIK(c,i,k)
+#define	XFS_BMBT_TRACE_CURSOR(c,s)
+#endif	/* XFS_BMBT_TRACE */
+
+
+/*
+ * Internal functions.
+ */
+
+/*
+ * Delete record pointed to by cur/level.
+ */
+STATIC int					/* error */
+xfs_bmbt_delrec(
+	xfs_btree_cur_t		*cur,
+	int			level,
+	int			*stat)		/* success/failure */
+{
+	xfs_bmbt_block_t	*block;		/* bmap btree block */
+	xfs_fsblock_t		bno;		/* fs-relative block number */
+	xfs_buf_t		*bp;		/* buffer for block */
+	int			error;		/* error return value */
+#ifdef XFS_BMBT_TRACE
+	static char		fname[] = "xfs_bmbt_delrec";
+#endif
+	int			i;		/* loop counter */
+	int			j;		/* temp state */
+	xfs_bmbt_key_t		key;		/* bmap btree key */
+	xfs_bmbt_key_t		*kp=NULL;	/* pointer to bmap btree key */
+	xfs_fsblock_t		lbno;		/* left sibling block number */
+	xfs_buf_t		*lbp;		/* left buffer pointer */
+	xfs_bmbt_block_t	*left;		/* left btree block */
+	xfs_bmbt_key_t		*lkp;		/* left btree key */
+	xfs_bmbt_ptr_t		*lpp;		/* left address pointer */
+	int			lrecs=0;	/* left record count */
+	xfs_bmbt_rec_t		*lrp;		/* left record pointer */
+	xfs_mount_t		*mp;		/* file system mount point */
+	xfs_bmbt_ptr_t		*pp;		/* pointer to bmap block addr */
+	int			ptr;		/* key/record index */
+	xfs_fsblock_t		rbno;		/* right sibling block number */
+	xfs_buf_t		*rbp;		/* right buffer pointer */
+	xfs_bmbt_block_t	*right;		/* right btree block */
+	xfs_bmbt_key_t		*rkp;		/* right btree key */
+	xfs_bmbt_rec_t		*rp;		/* pointer to bmap btree rec */
+	xfs_bmbt_ptr_t		*rpp;		/* right address pointer */
+	xfs_bmbt_block_t	*rrblock;	/* right-right btree block */
+	xfs_buf_t		*rrbp;		/* right-right buffer pointer */
+	int			rrecs=0;	/* right record count */
+	xfs_bmbt_rec_t		*rrp;		/* right record pointer */
+	xfs_btree_cur_t		*tcur;		/* temporary btree cursor */
+	int			numrecs;	/* temporary numrec count */
+	int			numlrecs, numrrecs;
+
+	XFS_BMBT_TRACE_CURSOR(cur, ENTRY);
+	XFS_BMBT_TRACE_ARGI(cur, level);
+	ptr = cur->bc_ptrs[level];
+	tcur = (xfs_btree_cur_t *)0;
+	if (ptr == 0) {
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		*stat = 0;
+		return 0;
+	}
+	block = xfs_bmbt_get_block(cur, level, &bp);
+	numrecs = INT_GET(block->bb_numrecs, ARCH_CONVERT);
+#ifdef DEBUG
+	if ((error = xfs_btree_check_lblock(cur, block, level, bp))) {
+		XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+		goto error0;
+	}
+#endif
+	if (ptr > numrecs) {
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		*stat = 0;
+		return 0;
+	}
+	XFS_STATS_INC(xs_bmbt_delrec);
+	if (level > 0) {
+		kp = XFS_BMAP_KEY_IADDR(block, 1, cur);
+		pp = XFS_BMAP_PTR_IADDR(block, 1, cur);
+#ifdef DEBUG
+		for (i = ptr; i < numrecs; i++) {
+			if ((error = xfs_btree_check_lptr(cur, INT_GET(pp[i], ARCH_CONVERT), level))) {
+				XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+				goto error0;
+			}
+		}
+#endif
+		if (ptr < numrecs) {
+			memmove(&kp[ptr - 1], &kp[ptr],
+				(numrecs - ptr) * sizeof(*kp));
+			memmove(&pp[ptr - 1], &pp[ptr], /* INT_: direct copy */
+				(numrecs - ptr) * sizeof(*pp));
+			xfs_bmbt_log_ptrs(cur, bp, ptr, numrecs - 1);
+			xfs_bmbt_log_keys(cur, bp, ptr, numrecs - 1);
+		}
+	} else {
+		rp = XFS_BMAP_REC_IADDR(block, 1, cur);
+		if (ptr < numrecs) {
+			memmove(&rp[ptr - 1], &rp[ptr],
+				(numrecs - ptr) * sizeof(*rp));
+			xfs_bmbt_log_recs(cur, bp, ptr, numrecs - 1);
+		}
+		if (ptr == 1) {
+			INT_SET(key.br_startoff, ARCH_CONVERT, xfs_bmbt_disk_get_startoff(rp));
+			kp = &key;
+		}
+	}
+	numrecs--;
+	INT_SET(block->bb_numrecs, ARCH_CONVERT, numrecs);
+	xfs_bmbt_log_block(cur, bp, XFS_BB_NUMRECS);
+	/*
+	 * We're at the root level.
+	 * First, shrink the root block in-memory.
+	 * Try to get rid of the next level down.
+	 * If we can't then there's nothing left to do.
+	 */
+	if (level == cur->bc_nlevels - 1) {
+		xfs_iroot_realloc(cur->bc_private.b.ip, -1,
+			cur->bc_private.b.whichfork);
+		if ((error = xfs_bmbt_killroot(cur))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			goto error0;
+		}
+		if (level > 0 && (error = xfs_bmbt_decrement(cur, level, &j))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			goto error0;
+		}
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		*stat = 1;
+		return 0;
+	}
+	if (ptr == 1 && (error = xfs_bmbt_updkey(cur, kp, level + 1))) {
+		XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+		goto error0;
+	}
+	if (numrecs >= XFS_BMAP_BLOCK_IMINRECS(level, cur)) {
+		if (level > 0 && (error = xfs_bmbt_decrement(cur, level, &j))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			goto error0;
+		}
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		*stat = 1;
+		return 0;
+	}
+	rbno = INT_GET(block->bb_rightsib, ARCH_CONVERT);
+	lbno = INT_GET(block->bb_leftsib, ARCH_CONVERT);
+	/*
+	 * One child of root, need to get a chance to copy its contents
+	 * into the root and delete it. Can't go up to next level,
+	 * there's nothing to delete there.
+	 */
+	if (lbno == NULLFSBLOCK && rbno == NULLFSBLOCK &&
+	    level == cur->bc_nlevels - 2) {
+		if ((error = xfs_bmbt_killroot(cur))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			goto error0;
+		}
+		if (level > 0 && (error = xfs_bmbt_decrement(cur, level, &i))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			goto error0;
+		}
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		*stat = 1;
+		return 0;
+	}
+	ASSERT(rbno != NULLFSBLOCK || lbno != NULLFSBLOCK);
+	if ((error = xfs_btree_dup_cursor(cur, &tcur))) {
+		XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+		goto error0;
+	}
+	bno = NULLFSBLOCK;
+	if (rbno != NULLFSBLOCK) {
+		i = xfs_btree_lastrec(tcur, level);
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		if ((error = xfs_bmbt_increment(tcur, level, &i))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			goto error0;
+		}
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		i = xfs_btree_lastrec(tcur, level);
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		rbp = tcur->bc_bufs[level];
+		right = XFS_BUF_TO_BMBT_BLOCK(rbp);
+#ifdef DEBUG
+		if ((error = xfs_btree_check_lblock(cur, right, level, rbp))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			goto error0;
+		}
+#endif
+		bno = INT_GET(right->bb_leftsib, ARCH_CONVERT);
+		if (INT_GET(right->bb_numrecs, ARCH_CONVERT) - 1 >=
+		    XFS_BMAP_BLOCK_IMINRECS(level, cur)) {
+			if ((error = xfs_bmbt_lshift(tcur, level, &i))) {
+				XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+				goto error0;
+			}
+			if (i) {
+				ASSERT(INT_GET(block->bb_numrecs, ARCH_CONVERT) >=
+				       XFS_BMAP_BLOCK_IMINRECS(level, tcur));
+				xfs_btree_del_cursor(tcur, XFS_BTREE_NOERROR);
+				tcur = NULL;
+				if (level > 0) {
+					if ((error = xfs_bmbt_decrement(cur,
+							level, &i))) {
+						XFS_BMBT_TRACE_CURSOR(cur,
+							ERROR);
+						goto error0;
+					}
+				}
+				XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+				*stat = 1;
+				return 0;
+			}
+		}
+		rrecs = INT_GET(right->bb_numrecs, ARCH_CONVERT);
+		if (lbno != NULLFSBLOCK) {
+			i = xfs_btree_firstrec(tcur, level);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+			if ((error = xfs_bmbt_decrement(tcur, level, &i))) {
+				XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+				goto error0;
+			}
+			XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		}
+	}
+	if (lbno != NULLFSBLOCK) {
+		i = xfs_btree_firstrec(tcur, level);
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		/*
+		 * decrement to last in block
+		 */
+		if ((error = xfs_bmbt_decrement(tcur, level, &i))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			goto error0;
+		}
+		i = xfs_btree_firstrec(tcur, level);
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		lbp = tcur->bc_bufs[level];
+		left = XFS_BUF_TO_BMBT_BLOCK(lbp);
+#ifdef DEBUG
+		if ((error = xfs_btree_check_lblock(cur, left, level, lbp))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			goto error0;
+		}
+#endif
+		bno = INT_GET(left->bb_rightsib, ARCH_CONVERT);
+		if (INT_GET(left->bb_numrecs, ARCH_CONVERT) - 1 >=
+		    XFS_BMAP_BLOCK_IMINRECS(level, cur)) {
+			if ((error = xfs_bmbt_rshift(tcur, level, &i))) {
+				XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+				goto error0;
+			}
+			if (i) {
+				ASSERT(INT_GET(block->bb_numrecs, ARCH_CONVERT) >=
+				       XFS_BMAP_BLOCK_IMINRECS(level, tcur));
+				xfs_btree_del_cursor(tcur, XFS_BTREE_NOERROR);
+				tcur = NULL;
+				if (level == 0)
+					cur->bc_ptrs[0]++;
+				XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+				*stat = 1;
+				return 0;
+			}
+		}
+		lrecs = INT_GET(left->bb_numrecs, ARCH_CONVERT);
+	}
+	xfs_btree_del_cursor(tcur, XFS_BTREE_NOERROR);
+	tcur = NULL;
+	mp = cur->bc_mp;
+	ASSERT(bno != NULLFSBLOCK);
+	if (lbno != NULLFSBLOCK &&
+	    lrecs + INT_GET(block->bb_numrecs, ARCH_CONVERT) <= XFS_BMAP_BLOCK_IMAXRECS(level, cur)) {
+		rbno = bno;
+		right = block;
+		rbp = bp;
+		if ((error = xfs_btree_read_bufl(mp, cur->bc_tp, lbno, 0, &lbp,
+				XFS_BMAP_BTREE_REF))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			goto error0;
+		}
+		left = XFS_BUF_TO_BMBT_BLOCK(lbp);
+		if ((error = xfs_btree_check_lblock(cur, left, level, lbp))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			goto error0;
+		}
+	} else if (rbno != NULLFSBLOCK &&
+		   rrecs + INT_GET(block->bb_numrecs, ARCH_CONVERT) <=
+		   XFS_BMAP_BLOCK_IMAXRECS(level, cur)) {
+		lbno = bno;
+		left = block;
+		lbp = bp;
+		if ((error = xfs_btree_read_bufl(mp, cur->bc_tp, rbno, 0, &rbp,
+				XFS_BMAP_BTREE_REF))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			goto error0;
+		}
+		right = XFS_BUF_TO_BMBT_BLOCK(rbp);
+		if ((error = xfs_btree_check_lblock(cur, right, level, rbp))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			goto error0;
+		}
+		lrecs = INT_GET(left->bb_numrecs, ARCH_CONVERT);
+	} else {
+		if (level > 0 && (error = xfs_bmbt_decrement(cur, level, &i))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			goto error0;
+		}
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		*stat = 1;
+		return 0;
+	}
+	numlrecs = INT_GET(left->bb_numrecs, ARCH_CONVERT);
+	numrrecs = INT_GET(right->bb_numrecs, ARCH_CONVERT);
+	if (level > 0) {
+		lkp = XFS_BMAP_KEY_IADDR(left, numlrecs + 1, cur);
+		lpp = XFS_BMAP_PTR_IADDR(left, numlrecs + 1, cur);
+		rkp = XFS_BMAP_KEY_IADDR(right, 1, cur);
+		rpp = XFS_BMAP_PTR_IADDR(right, 1, cur);
+#ifdef DEBUG
+		for (i = 0; i < numrrecs; i++) {
+			if ((error = xfs_btree_check_lptr(cur, INT_GET(rpp[i], ARCH_CONVERT), level))) {
+				XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+				goto error0;
+			}
+		}
+#endif
+		memcpy(lkp, rkp, numrrecs * sizeof(*lkp));
+		memcpy(lpp, rpp, numrrecs * sizeof(*lpp));
+		xfs_bmbt_log_keys(cur, lbp, numlrecs + 1, numlrecs + numrrecs);
+		xfs_bmbt_log_ptrs(cur, lbp, numlrecs + 1, numlrecs + numrrecs);
+	} else {
+		lrp = XFS_BMAP_REC_IADDR(left, numlrecs + 1, cur);
+		rrp = XFS_BMAP_REC_IADDR(right, 1, cur);
+		memcpy(lrp, rrp, numrrecs * sizeof(*lrp));
+		xfs_bmbt_log_recs(cur, lbp, numlrecs + 1, numlrecs + numrrecs);
+	}
+	INT_MOD(left->bb_numrecs, ARCH_CONVERT, numrrecs);
+	left->bb_rightsib = right->bb_rightsib; /* INT_: direct copy */
+	xfs_bmbt_log_block(cur, lbp, XFS_BB_RIGHTSIB | XFS_BB_NUMRECS);
+	if (INT_GET(left->bb_rightsib, ARCH_CONVERT) != NULLDFSBNO) {
+		if ((error = xfs_btree_read_bufl(mp, cur->bc_tp,
+				INT_GET(left->bb_rightsib, ARCH_CONVERT),
+				0, &rrbp, XFS_BMAP_BTREE_REF))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			goto error0;
+		}
+		rrblock = XFS_BUF_TO_BMBT_BLOCK(rrbp);
+		if ((error = xfs_btree_check_lblock(cur, rrblock, level, rrbp))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			goto error0;
+		}
+		INT_SET(rrblock->bb_leftsib, ARCH_CONVERT, lbno);
+		xfs_bmbt_log_block(cur, rrbp, XFS_BB_LEFTSIB);
+	}
+	xfs_bmap_add_free(XFS_DADDR_TO_FSB(mp, XFS_BUF_ADDR(rbp)), 1,
+		cur->bc_private.b.flist, mp);
+	cur->bc_private.b.ip->i_d.di_nblocks--;
+	xfs_trans_log_inode(cur->bc_tp, cur->bc_private.b.ip, XFS_ILOG_CORE);
+	XFS_TRANS_MOD_DQUOT_BYINO(mp, cur->bc_tp, cur->bc_private.b.ip,
+			XFS_TRANS_DQ_BCOUNT, -1L);
+	xfs_trans_binval(cur->bc_tp, rbp);
+	if (bp != lbp) {
+		cur->bc_bufs[level] = lbp;
+		cur->bc_ptrs[level] += lrecs;
+		cur->bc_ra[level] = 0;
+	} else if ((error = xfs_bmbt_increment(cur, level + 1, &i))) {
+		XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+		goto error0;
+	}
+	if (level > 0)
+		cur->bc_ptrs[level]--;
+	XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+	*stat = 2;
+	return 0;
+
+error0:
+	if (tcur)
+		xfs_btree_del_cursor(tcur, XFS_BTREE_ERROR);
+	return error;
+}
+
+#ifdef DEBUG
+/*
+ * Get the data from the pointed-to record.
+ */
+int
+xfs_bmbt_get_rec(
+	xfs_btree_cur_t		*cur,
+	xfs_fileoff_t		*off,
+	xfs_fsblock_t		*bno,
+	xfs_filblks_t		*len,
+	xfs_exntst_t		*state,
+	int			*stat)
+{
+	xfs_bmbt_block_t	*block;
+	xfs_buf_t		*bp;
+#ifdef DEBUG
+	int			error;
+#endif
+	int			ptr;
+	xfs_bmbt_rec_t		*rp;
+
+	block = xfs_bmbt_get_block(cur, 0, &bp);
+	ptr = cur->bc_ptrs[0];
+#ifdef DEBUG
+	if ((error = xfs_btree_check_lblock(cur, block, 0, bp)))
+		return error;
+#endif
+	if (ptr > INT_GET(block->bb_numrecs, ARCH_CONVERT) || ptr <= 0) {
+		*stat = 0;
+		return 0;
+	}
+	rp = XFS_BMAP_REC_IADDR(block, ptr, cur);
+	*off = xfs_bmbt_disk_get_startoff(rp);
+	*bno = xfs_bmbt_disk_get_startblock(rp);
+	*len = xfs_bmbt_disk_get_blockcount(rp);
+	*state = xfs_bmbt_disk_get_state(rp);
+	*stat = 1;
+	return 0;
+}
+#endif
+
+/*
+ * Insert one record/level.  Return information to the caller
+ * allowing the next level up to proceed if necessary.
+ */
+STATIC int					/* error */
+xfs_bmbt_insrec(
+	xfs_btree_cur_t		*cur,
+	int			level,
+	xfs_fsblock_t		*bnop,
+	xfs_bmbt_rec_t		*recp,
+	xfs_btree_cur_t		**curp,
+	int			*stat)		/* no-go/done/continue */
+{
+	xfs_bmbt_block_t	*block;		/* bmap btree block */
+	xfs_buf_t		*bp;		/* buffer for block */
+	int			error;		/* error return value */
+#ifdef XFS_BMBT_TRACE
+	static char		fname[] = "xfs_bmbt_insrec";
+#endif
+	int			i;		/* loop index */
+	xfs_bmbt_key_t		key;		/* bmap btree key */
+	xfs_bmbt_key_t		*kp=NULL;	/* pointer to bmap btree key */
+	int			logflags;	/* inode logging flags */
+	xfs_fsblock_t		nbno;		/* new block number */
+	struct xfs_btree_cur	*ncur;		/* new btree cursor */
+	xfs_bmbt_key_t		nkey;		/* new btree key value */
+	xfs_bmbt_rec_t		nrec;		/* new record count */
+	int			optr;		/* old key/record index */
+	xfs_bmbt_ptr_t		*pp;		/* pointer to bmap block addr */
+	int			ptr;		/* key/record index */
+	xfs_bmbt_rec_t		*rp=NULL;	/* pointer to bmap btree rec */
+	int			numrecs;
+
+	ASSERT(level < cur->bc_nlevels);
+	XFS_BMBT_TRACE_CURSOR(cur, ENTRY);
+	XFS_BMBT_TRACE_ARGIFR(cur, level, *bnop, recp);
+	ncur = (xfs_btree_cur_t *)0;
+	INT_SET(key.br_startoff, ARCH_CONVERT,
+		xfs_bmbt_disk_get_startoff(recp));
+	optr = ptr = cur->bc_ptrs[level];
+	if (ptr == 0) {
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		*stat = 0;
+		return 0;
+	}
+	XFS_STATS_INC(xs_bmbt_insrec);
+	block = xfs_bmbt_get_block(cur, level, &bp);
+	numrecs = INT_GET(block->bb_numrecs, ARCH_CONVERT);
+#ifdef DEBUG
+	if ((error = xfs_btree_check_lblock(cur, block, level, bp))) {
+		XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+		return error;
+	}
+	if (ptr <= numrecs) {
+		if (level == 0) {
+			rp = XFS_BMAP_REC_IADDR(block, ptr, cur);
+			xfs_btree_check_rec(XFS_BTNUM_BMAP, recp, rp);
+		} else {
+			kp = XFS_BMAP_KEY_IADDR(block, ptr, cur);
+			xfs_btree_check_key(XFS_BTNUM_BMAP, &key, kp);
+		}
+	}
+#endif
+	nbno = NULLFSBLOCK;
+	if (numrecs == XFS_BMAP_BLOCK_IMAXRECS(level, cur)) {
+		if (numrecs < XFS_BMAP_BLOCK_DMAXRECS(level, cur)) {
+			/*
+			 * A root block, that can be made bigger.
+			 */
+			xfs_iroot_realloc(cur->bc_private.b.ip, 1,
+				cur->bc_private.b.whichfork);
+			block = xfs_bmbt_get_block(cur, level, &bp);
+		} else if (level == cur->bc_nlevels - 1) {
+			if ((error = xfs_bmbt_newroot(cur, &logflags, stat)) ||
+			    *stat == 0) {
+				XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+				return error;
+			}
+			xfs_trans_log_inode(cur->bc_tp, cur->bc_private.b.ip,
+				logflags);
+			block = xfs_bmbt_get_block(cur, level, &bp);
+		} else {
+			if ((error = xfs_bmbt_rshift(cur, level, &i))) {
+				XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+				return error;
+			}
+			if (i) {
+				/* nothing */
+			} else {
+				if ((error = xfs_bmbt_lshift(cur, level, &i))) {
+					XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+					return error;
+				}
+				if (i) {
+					optr = ptr = cur->bc_ptrs[level];
+				} else {
+					if ((error = xfs_bmbt_split(cur, level,
+							&nbno, &nkey, &ncur,
+							&i))) {
+						XFS_BMBT_TRACE_CURSOR(cur,
+							ERROR);
+						return error;
+					}
+					if (i) {
+						block = xfs_bmbt_get_block(
+							    cur, level, &bp);
+#ifdef DEBUG
+						if ((error =
+						    xfs_btree_check_lblock(cur,
+							    block, level, bp))) {
+							XFS_BMBT_TRACE_CURSOR(
+								cur, ERROR);
+							return error;
+						}
+#endif
+						ptr = cur->bc_ptrs[level];
+						xfs_bmbt_disk_set_allf(&nrec,
+							nkey.br_startoff, 0, 0,
+							XFS_EXT_NORM);
+					} else {
+						XFS_BMBT_TRACE_CURSOR(cur,
+							EXIT);
+						*stat = 0;
+						return 0;
+					}
+				}
+			}
+		}
+	}
+	numrecs = INT_GET(block->bb_numrecs, ARCH_CONVERT);
+	if (level > 0) {
+		kp = XFS_BMAP_KEY_IADDR(block, 1, cur);
+		pp = XFS_BMAP_PTR_IADDR(block, 1, cur);
+#ifdef DEBUG
+		for (i = numrecs; i >= ptr; i--) {
+			if ((error = xfs_btree_check_lptr(cur, INT_GET(pp[i - 1], ARCH_CONVERT),
+					level))) {
+				XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+				return error;
+			}
+		}
+#endif
+		memmove(&kp[ptr], &kp[ptr - 1],
+			(numrecs - ptr + 1) * sizeof(*kp));
+		memmove(&pp[ptr], &pp[ptr - 1], /* INT_: direct copy */
+			(numrecs - ptr + 1) * sizeof(*pp));
+#ifdef DEBUG
+		if ((error = xfs_btree_check_lptr(cur, (xfs_bmbt_ptr_t)*bnop,
+				level))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			return error;
+		}
+#endif
+		kp[ptr - 1] = key;
+		INT_SET(pp[ptr - 1], ARCH_CONVERT, *bnop);
+		numrecs++;
+		INT_SET(block->bb_numrecs, ARCH_CONVERT, numrecs);
+		xfs_bmbt_log_keys(cur, bp, ptr, numrecs);
+		xfs_bmbt_log_ptrs(cur, bp, ptr, numrecs);
+	} else {
+		rp = XFS_BMAP_REC_IADDR(block, 1, cur);
+		memmove(&rp[ptr], &rp[ptr - 1],
+			(numrecs - ptr + 1) * sizeof(*rp));
+		rp[ptr - 1] = *recp;
+		numrecs++;
+		INT_SET(block->bb_numrecs, ARCH_CONVERT, numrecs);
+		xfs_bmbt_log_recs(cur, bp, ptr, numrecs);
+	}
+	xfs_bmbt_log_block(cur, bp, XFS_BB_NUMRECS);
+#ifdef DEBUG
+	if (ptr < numrecs) {
+		if (level == 0)
+			xfs_btree_check_rec(XFS_BTNUM_BMAP, rp + ptr - 1,
+				rp + ptr);
+		else
+			xfs_btree_check_key(XFS_BTNUM_BMAP, kp + ptr - 1,
+				kp + ptr);
+	}
+#endif
+	if (optr == 1 && (error = xfs_bmbt_updkey(cur, &key, level + 1))) {
+		XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+		return error;
+	}
+	*bnop = nbno;
+	if (nbno != NULLFSBLOCK) {
+		*recp = nrec;
+		*curp = ncur;
+	}
+	XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+	*stat = 1;
+	return 0;
+}
+
+STATIC int
+xfs_bmbt_killroot(
+	xfs_btree_cur_t		*cur)
+{
+	xfs_bmbt_block_t	*block;
+	xfs_bmbt_block_t	*cblock;
+	xfs_buf_t		*cbp;
+	xfs_bmbt_key_t		*ckp;
+	xfs_bmbt_ptr_t		*cpp;
+#ifdef DEBUG
+	int			error;
+#endif
+#ifdef XFS_BMBT_TRACE
+	static char		fname[] = "xfs_bmbt_killroot";
+#endif
+	int			i;
+	xfs_bmbt_key_t		*kp;
+	xfs_inode_t		*ip;
+	xfs_ifork_t		*ifp;
+	int			level;
+	xfs_bmbt_ptr_t		*pp;
+
+	XFS_BMBT_TRACE_CURSOR(cur, ENTRY);
+	level = cur->bc_nlevels - 1;
+	ASSERT(level >= 1);
+	/*
+	 * Don't deal with the root block needs to be a leaf case.
+	 * We're just going to turn the thing back into extents anyway.
+	 */
+	if (level == 1) {
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		return 0;
+	}
+	block = xfs_bmbt_get_block(cur, level, &cbp);
+	/*
+	 * Give up if the root has multiple children.
+	 */
+	if (INT_GET(block->bb_numrecs, ARCH_CONVERT) != 1) {
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		return 0;
+	}
+	/*
+	 * Only do this if the next level will fit.
+	 * Then the data must be copied up to the inode,
+	 * instead of freeing the root you free the next level.
+	 */
+	cbp = cur->bc_bufs[level - 1];
+	cblock = XFS_BUF_TO_BMBT_BLOCK(cbp);
+	if (INT_GET(cblock->bb_numrecs, ARCH_CONVERT) > XFS_BMAP_BLOCK_DMAXRECS(level, cur)) {
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		return 0;
+	}
+	ASSERT(INT_GET(cblock->bb_leftsib, ARCH_CONVERT) == NULLDFSBNO);
+	ASSERT(INT_GET(cblock->bb_rightsib, ARCH_CONVERT) == NULLDFSBNO);
+	ip = cur->bc_private.b.ip;
+	ifp = XFS_IFORK_PTR(ip, cur->bc_private.b.whichfork);
+	ASSERT(XFS_BMAP_BLOCK_IMAXRECS(level, cur) ==
+	       XFS_BMAP_BROOT_MAXRECS(ifp->if_broot_bytes));
+	i = (int)(INT_GET(cblock->bb_numrecs, ARCH_CONVERT) - XFS_BMAP_BLOCK_IMAXRECS(level, cur));
+	if (i) {
+		xfs_iroot_realloc(ip, i, cur->bc_private.b.whichfork);
+		block = ifp->if_broot;
+	}
+	INT_MOD(block->bb_numrecs, ARCH_CONVERT, i);
+	ASSERT(INT_GET(block->bb_numrecs, ARCH_CONVERT) == INT_GET(cblock->bb_numrecs, ARCH_CONVERT));
+	kp = XFS_BMAP_KEY_IADDR(block, 1, cur);
+	ckp = XFS_BMAP_KEY_IADDR(cblock, 1, cur);
+	memcpy(kp, ckp, INT_GET(block->bb_numrecs, ARCH_CONVERT) * sizeof(*kp));
+	pp = XFS_BMAP_PTR_IADDR(block, 1, cur);
+	cpp = XFS_BMAP_PTR_IADDR(cblock, 1, cur);
+#ifdef DEBUG
+	for (i = 0; i < INT_GET(cblock->bb_numrecs, ARCH_CONVERT); i++) {
+		if ((error = xfs_btree_check_lptr(cur, INT_GET(cpp[i], ARCH_CONVERT), level - 1))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			return error;
+		}
+	}
+#endif
+	memcpy(pp, cpp, INT_GET(block->bb_numrecs, ARCH_CONVERT) * sizeof(*pp));
+	xfs_bmap_add_free(XFS_DADDR_TO_FSB(cur->bc_mp, XFS_BUF_ADDR(cbp)), 1,
+			cur->bc_private.b.flist, cur->bc_mp);
+	ip->i_d.di_nblocks--;
+	XFS_TRANS_MOD_DQUOT_BYINO(cur->bc_mp, cur->bc_tp, ip,
+			XFS_TRANS_DQ_BCOUNT, -1L);
+	xfs_trans_binval(cur->bc_tp, cbp);
+	cur->bc_bufs[level - 1] = NULL;
+	INT_MOD(block->bb_level, ARCH_CONVERT, -1);
+	xfs_trans_log_inode(cur->bc_tp, ip,
+		XFS_ILOG_CORE | XFS_ILOG_FBROOT(cur->bc_private.b.whichfork));
+	cur->bc_nlevels--;
+	XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+	return 0;
+}
+
+/*
+ * Log key values from the btree block.
+ */
+STATIC void
+xfs_bmbt_log_keys(
+	xfs_btree_cur_t	*cur,
+	xfs_buf_t	*bp,
+	int		kfirst,
+	int		klast)
+{
+#ifdef XFS_BMBT_TRACE
+	static char	fname[] = "xfs_bmbt_log_keys";
+#endif
+	xfs_trans_t	*tp;
+
+	XFS_BMBT_TRACE_CURSOR(cur, ENTRY);
+	XFS_BMBT_TRACE_ARGBII(cur, bp, kfirst, klast);
+	tp = cur->bc_tp;
+	if (bp) {
+		xfs_bmbt_block_t	*block;
+		int			first;
+		xfs_bmbt_key_t		*kp;
+		int			last;
+
+		block = XFS_BUF_TO_BMBT_BLOCK(bp);
+		kp = XFS_BMAP_KEY_DADDR(block, 1, cur);
+		first = (int)((xfs_caddr_t)&kp[kfirst - 1] - (xfs_caddr_t)block);
+		last = (int)(((xfs_caddr_t)&kp[klast] - 1) - (xfs_caddr_t)block);
+		xfs_trans_log_buf(tp, bp, first, last);
+	} else {
+		xfs_inode_t		 *ip;
+
+		ip = cur->bc_private.b.ip;
+		xfs_trans_log_inode(tp, ip,
+			XFS_ILOG_FBROOT(cur->bc_private.b.whichfork));
+	}
+	XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+}
+
+/*
+ * Log pointer values from the btree block.
+ */
+STATIC void
+xfs_bmbt_log_ptrs(
+	xfs_btree_cur_t	*cur,
+	xfs_buf_t	*bp,
+	int		pfirst,
+	int		plast)
+{
+#ifdef XFS_BMBT_TRACE
+	static char	fname[] = "xfs_bmbt_log_ptrs";
+#endif
+	xfs_trans_t	*tp;
+
+	XFS_BMBT_TRACE_CURSOR(cur, ENTRY);
+	XFS_BMBT_TRACE_ARGBII(cur, bp, pfirst, plast);
+	tp = cur->bc_tp;
+	if (bp) {
+		xfs_bmbt_block_t	*block;
+		int			first;
+		int			last;
+		xfs_bmbt_ptr_t		*pp;
+
+		block = XFS_BUF_TO_BMBT_BLOCK(bp);
+		pp = XFS_BMAP_PTR_DADDR(block, 1, cur);
+		first = (int)((xfs_caddr_t)&pp[pfirst - 1] - (xfs_caddr_t)block);
+		last = (int)(((xfs_caddr_t)&pp[plast] - 1) - (xfs_caddr_t)block);
+		xfs_trans_log_buf(tp, bp, first, last);
+	} else {
+		xfs_inode_t		*ip;
+
+		ip = cur->bc_private.b.ip;
+		xfs_trans_log_inode(tp, ip,
+			XFS_ILOG_FBROOT(cur->bc_private.b.whichfork));
+	}
+	XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+}
+
+/*
+ * Lookup the record.  The cursor is made to point to it, based on dir.
+ */
+STATIC int				/* error */
+xfs_bmbt_lookup(
+	xfs_btree_cur_t		*cur,
+	xfs_lookup_t		dir,
+	int			*stat)		/* success/failure */
+{
+	xfs_bmbt_block_t	*block=NULL;
+	xfs_buf_t		*bp;
+	xfs_daddr_t		d;
+	xfs_sfiloff_t		diff;
+	int			error;		/* error return value */
+#ifdef XFS_BMBT_TRACE
+	static char	fname[] = "xfs_bmbt_lookup";
+#endif
+	xfs_fsblock_t		fsbno=0;
+	int			high;
+	int			i;
+	int			keyno=0;
+	xfs_bmbt_key_t		*kkbase=NULL;
+	xfs_bmbt_key_t		*kkp;
+	xfs_bmbt_rec_t		*krbase=NULL;
+	xfs_bmbt_rec_t		*krp;
+	int			level;
+	int			low;
+	xfs_mount_t		*mp;
+	xfs_bmbt_ptr_t		*pp;
+	xfs_bmbt_irec_t		*rp;
+	xfs_fileoff_t		startoff;
+	xfs_trans_t		*tp;
+
+	XFS_STATS_INC(xs_bmbt_lookup);
+	XFS_BMBT_TRACE_CURSOR(cur, ENTRY);
+	XFS_BMBT_TRACE_ARGI(cur, (int)dir);
+	tp = cur->bc_tp;
+	mp = cur->bc_mp;
+	rp = &cur->bc_rec.b;
+	for (level = cur->bc_nlevels - 1, diff = 1; level >= 0; level--) {
+		if (level < cur->bc_nlevels - 1) {
+			d = XFS_FSB_TO_DADDR(mp, fsbno);
+			bp = cur->bc_bufs[level];
+			if (bp && XFS_BUF_ADDR(bp) != d)
+				bp = (xfs_buf_t *)0;
+			if (!bp) {
+				if ((error = xfs_btree_read_bufl(mp, tp, fsbno,
+						0, &bp, XFS_BMAP_BTREE_REF))) {
+					XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+					return error;
+				}
+				xfs_btree_setbuf(cur, level, bp);
+				block = XFS_BUF_TO_BMBT_BLOCK(bp);
+				if ((error = xfs_btree_check_lblock(cur, block,
+						level, bp))) {
+					XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+					return error;
+				}
+			} else
+				block = XFS_BUF_TO_BMBT_BLOCK(bp);
+		} else
+			block = xfs_bmbt_get_block(cur, level, &bp);
+		if (diff == 0)
+			keyno = 1;
+		else {
+			if (level > 0)
+				kkbase = XFS_BMAP_KEY_IADDR(block, 1, cur);
+			else
+				krbase = XFS_BMAP_REC_IADDR(block, 1, cur);
+			low = 1;
+			if (!(high = INT_GET(block->bb_numrecs, ARCH_CONVERT))) {
+				ASSERT(level == 0);
+				cur->bc_ptrs[0] = dir != XFS_LOOKUP_LE;
+				XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+				*stat = 0;
+				return 0;
+			}
+			while (low <= high) {
+				XFS_STATS_INC(xs_bmbt_compare);
+				keyno = (low + high) >> 1;
+				if (level > 0) {
+					kkp = kkbase + keyno - 1;
+					startoff = INT_GET(kkp->br_startoff, ARCH_CONVERT);
+				} else {
+					krp = krbase + keyno - 1;
+					startoff = xfs_bmbt_disk_get_startoff(krp);
+				}
+				diff = (xfs_sfiloff_t)
+						(startoff - rp->br_startoff);
+				if (diff < 0)
+					low = keyno + 1;
+				else if (diff > 0)
+					high = keyno - 1;
+				else
+					break;
+			}
+		}
+		if (level > 0) {
+			if (diff > 0 && --keyno < 1)
+				keyno = 1;
+			pp = XFS_BMAP_PTR_IADDR(block, keyno, cur);
+#ifdef DEBUG
+			if ((error = xfs_btree_check_lptr(cur, INT_GET(*pp, ARCH_CONVERT), level))) {
+				XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+				return error;
+			}
+#endif
+			fsbno = INT_GET(*pp, ARCH_CONVERT);
+			cur->bc_ptrs[level] = keyno;
+		}
+	}
+	if (dir != XFS_LOOKUP_LE && diff < 0) {
+		keyno++;
+		/*
+		 * If ge search and we went off the end of the block, but it's
+		 * not the last block, we're in the wrong block.
+		 */
+		if (dir == XFS_LOOKUP_GE && keyno > INT_GET(block->bb_numrecs, ARCH_CONVERT) &&
+		    INT_GET(block->bb_rightsib, ARCH_CONVERT) != NULLDFSBNO) {
+			cur->bc_ptrs[0] = keyno;
+			if ((error = xfs_bmbt_increment(cur, 0, &i))) {
+				XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+				return error;
+			}
+			XFS_WANT_CORRUPTED_RETURN(i == 1);
+			XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+			*stat = 1;
+			return 0;
+		}
+	}
+	else if (dir == XFS_LOOKUP_LE && diff > 0)
+		keyno--;
+	cur->bc_ptrs[0] = keyno;
+	if (keyno == 0 || keyno > INT_GET(block->bb_numrecs, ARCH_CONVERT)) {
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		*stat = 0;
+	} else {
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		*stat = ((dir != XFS_LOOKUP_EQ) || (diff == 0));
+	}
+	return 0;
+}
+
+/*
+ * Move 1 record left from cur/level if possible.
+ * Update cur to reflect the new path.
+ */
+STATIC int					/* error */
+xfs_bmbt_lshift(
+	xfs_btree_cur_t		*cur,
+	int			level,
+	int			*stat)		/* success/failure */
+{
+	int			error;		/* error return value */
+#ifdef XFS_BMBT_TRACE
+	static char		fname[] = "xfs_bmbt_lshift";
+#endif
+#ifdef DEBUG
+	int			i;		/* loop counter */
+#endif
+	xfs_bmbt_key_t		key;		/* bmap btree key */
+	xfs_buf_t		*lbp;		/* left buffer pointer */
+	xfs_bmbt_block_t	*left;		/* left btree block */
+	xfs_bmbt_key_t		*lkp=NULL;	/* left btree key */
+	xfs_bmbt_ptr_t		*lpp;		/* left address pointer */
+	int			lrecs;		/* left record count */
+	xfs_bmbt_rec_t		*lrp=NULL;	/* left record pointer */
+	xfs_mount_t		*mp;		/* file system mount point */
+	xfs_buf_t		*rbp;		/* right buffer pointer */
+	xfs_bmbt_block_t	*right;		/* right btree block */
+	xfs_bmbt_key_t		*rkp=NULL;	/* right btree key */
+	xfs_bmbt_ptr_t		*rpp=NULL;	/* right address pointer */
+	xfs_bmbt_rec_t		*rrp=NULL;	/* right record pointer */
+	int			rrecs;		/* right record count */
+
+	XFS_BMBT_TRACE_CURSOR(cur, ENTRY);
+	XFS_BMBT_TRACE_ARGI(cur, level);
+	if (level == cur->bc_nlevels - 1) {
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		*stat = 0;
+		return 0;
+	}
+	rbp = cur->bc_bufs[level];
+	right = XFS_BUF_TO_BMBT_BLOCK(rbp);
+#ifdef DEBUG
+	if ((error = xfs_btree_check_lblock(cur, right, level, rbp))) {
+		XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+		return error;
+	}
+#endif
+	if (INT_GET(right->bb_leftsib, ARCH_CONVERT) == NULLDFSBNO) {
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		*stat = 0;
+		return 0;
+	}
+	if (cur->bc_ptrs[level] <= 1) {
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		*stat = 0;
+		return 0;
+	}
+	mp = cur->bc_mp;
+	if ((error = xfs_btree_read_bufl(mp, cur->bc_tp, INT_GET(right->bb_leftsib, ARCH_CONVERT), 0,
+			&lbp, XFS_BMAP_BTREE_REF))) {
+		XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+		return error;
+	}
+	left = XFS_BUF_TO_BMBT_BLOCK(lbp);
+	if ((error = xfs_btree_check_lblock(cur, left, level, lbp))) {
+		XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+		return error;
+	}
+	if (INT_GET(left->bb_numrecs, ARCH_CONVERT) == XFS_BMAP_BLOCK_IMAXRECS(level, cur)) {
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		*stat = 0;
+		return 0;
+	}
+	lrecs = INT_GET(left->bb_numrecs, ARCH_CONVERT) + 1;
+	if (level > 0) {
+		lkp = XFS_BMAP_KEY_IADDR(left, lrecs, cur);
+		rkp = XFS_BMAP_KEY_IADDR(right, 1, cur);
+		*lkp = *rkp;
+		xfs_bmbt_log_keys(cur, lbp, lrecs, lrecs);
+		lpp = XFS_BMAP_PTR_IADDR(left, lrecs, cur);
+		rpp = XFS_BMAP_PTR_IADDR(right, 1, cur);
+#ifdef DEBUG
+		if ((error = xfs_btree_check_lptr(cur, INT_GET(*rpp, ARCH_CONVERT), level))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			return error;
+		}
+#endif
+		*lpp = *rpp; /* INT_: direct copy */
+		xfs_bmbt_log_ptrs(cur, lbp, lrecs, lrecs);
+	} else {
+		lrp = XFS_BMAP_REC_IADDR(left, lrecs, cur);
+		rrp = XFS_BMAP_REC_IADDR(right, 1, cur);
+		*lrp = *rrp;
+		xfs_bmbt_log_recs(cur, lbp, lrecs, lrecs);
+	}
+	INT_SET(left->bb_numrecs, ARCH_CONVERT, lrecs);
+	xfs_bmbt_log_block(cur, lbp, XFS_BB_NUMRECS);
+#ifdef DEBUG
+	if (level > 0)
+		xfs_btree_check_key(XFS_BTNUM_BMAP, lkp - 1, lkp);
+	else
+		xfs_btree_check_rec(XFS_BTNUM_BMAP, lrp - 1, lrp);
+#endif
+	rrecs = INT_GET(right->bb_numrecs, ARCH_CONVERT) - 1;
+	INT_SET(right->bb_numrecs, ARCH_CONVERT, rrecs);
+	xfs_bmbt_log_block(cur, rbp, XFS_BB_NUMRECS);
+	if (level > 0) {
+#ifdef DEBUG
+		for (i = 0; i < rrecs; i++) {
+			if ((error = xfs_btree_check_lptr(cur, INT_GET(rpp[i + 1], ARCH_CONVERT),
+					level))) {
+				XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+				return error;
+			}
+		}
+#endif
+		memmove(rkp, rkp + 1, rrecs * sizeof(*rkp));
+		memmove(rpp, rpp + 1, rrecs * sizeof(*rpp));
+		xfs_bmbt_log_keys(cur, rbp, 1, rrecs);
+		xfs_bmbt_log_ptrs(cur, rbp, 1, rrecs);
+	} else {
+		memmove(rrp, rrp + 1, rrecs * sizeof(*rrp));
+		xfs_bmbt_log_recs(cur, rbp, 1, rrecs);
+		INT_SET(key.br_startoff, ARCH_CONVERT,
+			xfs_bmbt_disk_get_startoff(rrp));
+		rkp = &key;
+	}
+	if ((error = xfs_bmbt_updkey(cur, rkp, level + 1))) {
+		XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+		return error;
+	}
+	cur->bc_ptrs[level]--;
+	XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+	*stat = 1;
+	return 0;
+}
+
+/*
+ * Move 1 record right from cur/level if possible.
+ * Update cur to reflect the new path.
+ */
+STATIC int					/* error */
+xfs_bmbt_rshift(
+	xfs_btree_cur_t		*cur,
+	int			level,
+	int			*stat)		/* success/failure */
+{
+	int			error;		/* error return value */
+#ifdef XFS_BMBT_TRACE
+	static char		fname[] = "xfs_bmbt_rshift";
+#endif
+	int			i;		/* loop counter */
+	xfs_bmbt_key_t		key;		/* bmap btree key */
+	xfs_buf_t		*lbp;		/* left buffer pointer */
+	xfs_bmbt_block_t	*left;		/* left btree block */
+	xfs_bmbt_key_t		*lkp;		/* left btree key */
+	xfs_bmbt_ptr_t		*lpp;		/* left address pointer */
+	xfs_bmbt_rec_t		*lrp;		/* left record pointer */
+	xfs_mount_t		*mp;		/* file system mount point */
+	xfs_buf_t		*rbp;		/* right buffer pointer */
+	xfs_bmbt_block_t	*right;		/* right btree block */
+	xfs_bmbt_key_t		*rkp;		/* right btree key */
+	xfs_bmbt_ptr_t		*rpp;		/* right address pointer */
+	xfs_bmbt_rec_t		*rrp=NULL;	/* right record pointer */
+	struct xfs_btree_cur	*tcur;		/* temporary btree cursor */
+
+	XFS_BMBT_TRACE_CURSOR(cur, ENTRY);
+	XFS_BMBT_TRACE_ARGI(cur, level);
+	if (level == cur->bc_nlevels - 1) {
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		*stat = 0;
+		return 0;
+	}
+	lbp = cur->bc_bufs[level];
+	left = XFS_BUF_TO_BMBT_BLOCK(lbp);
+#ifdef DEBUG
+	if ((error = xfs_btree_check_lblock(cur, left, level, lbp))) {
+		XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+		return error;
+	}
+#endif
+	if (INT_GET(left->bb_rightsib, ARCH_CONVERT) == NULLDFSBNO) {
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		*stat = 0;
+		return 0;
+	}
+	if (cur->bc_ptrs[level] >= INT_GET(left->bb_numrecs, ARCH_CONVERT)) {
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		*stat = 0;
+		return 0;
+	}
+	mp = cur->bc_mp;
+	if ((error = xfs_btree_read_bufl(mp, cur->bc_tp, INT_GET(left->bb_rightsib, ARCH_CONVERT), 0,
+			&rbp, XFS_BMAP_BTREE_REF))) {
+		XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+		return error;
+	}
+	right = XFS_BUF_TO_BMBT_BLOCK(rbp);
+	if ((error = xfs_btree_check_lblock(cur, right, level, rbp))) {
+		XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+		return error;
+	}
+	if (INT_GET(right->bb_numrecs, ARCH_CONVERT) == XFS_BMAP_BLOCK_IMAXRECS(level, cur)) {
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		*stat = 0;
+		return 0;
+	}
+	if (level > 0) {
+		lkp = XFS_BMAP_KEY_IADDR(left, INT_GET(left->bb_numrecs, ARCH_CONVERT), cur);
+		lpp = XFS_BMAP_PTR_IADDR(left, INT_GET(left->bb_numrecs, ARCH_CONVERT), cur);
+		rkp = XFS_BMAP_KEY_IADDR(right, 1, cur);
+		rpp = XFS_BMAP_PTR_IADDR(right, 1, cur);
+#ifdef DEBUG
+		for (i = INT_GET(right->bb_numrecs, ARCH_CONVERT) - 1; i >= 0; i--) {
+			if ((error = xfs_btree_check_lptr(cur, INT_GET(rpp[i], ARCH_CONVERT), level))) {
+				XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+				return error;
+			}
+		}
+#endif
+		memmove(rkp + 1, rkp, INT_GET(right->bb_numrecs, ARCH_CONVERT) * sizeof(*rkp));
+		memmove(rpp + 1, rpp, INT_GET(right->bb_numrecs, ARCH_CONVERT) * sizeof(*rpp));
+#ifdef DEBUG
+		if ((error = xfs_btree_check_lptr(cur, INT_GET(*lpp, ARCH_CONVERT), level))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			return error;
+		}
+#endif
+		*rkp = *lkp;
+		*rpp = *lpp; /* INT_: direct copy */
+		xfs_bmbt_log_keys(cur, rbp, 1, INT_GET(right->bb_numrecs, ARCH_CONVERT) + 1);
+		xfs_bmbt_log_ptrs(cur, rbp, 1, INT_GET(right->bb_numrecs, ARCH_CONVERT) + 1);
+	} else {
+		lrp = XFS_BMAP_REC_IADDR(left, INT_GET(left->bb_numrecs, ARCH_CONVERT), cur);
+		rrp = XFS_BMAP_REC_IADDR(right, 1, cur);
+		memmove(rrp + 1, rrp, INT_GET(right->bb_numrecs, ARCH_CONVERT) * sizeof(*rrp));
+		*rrp = *lrp;
+		xfs_bmbt_log_recs(cur, rbp, 1, INT_GET(right->bb_numrecs, ARCH_CONVERT) + 1);
+		INT_SET(key.br_startoff, ARCH_CONVERT,
+			xfs_bmbt_disk_get_startoff(rrp));
+		rkp = &key;
+	}
+	INT_MOD(left->bb_numrecs, ARCH_CONVERT, -1);
+	xfs_bmbt_log_block(cur, lbp, XFS_BB_NUMRECS);
+	INT_MOD(right->bb_numrecs, ARCH_CONVERT, +1);
+#ifdef DEBUG
+	if (level > 0)
+		xfs_btree_check_key(XFS_BTNUM_BMAP, rkp, rkp + 1);
+	else
+		xfs_btree_check_rec(XFS_BTNUM_BMAP, rrp, rrp + 1);
+#endif
+	xfs_bmbt_log_block(cur, rbp, XFS_BB_NUMRECS);
+	if ((error = xfs_btree_dup_cursor(cur, &tcur))) {
+		XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+		return error;
+	}
+	i = xfs_btree_lastrec(tcur, level);
+	XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+	if ((error = xfs_bmbt_increment(tcur, level, &i))) {
+		XFS_BMBT_TRACE_CURSOR(tcur, ERROR);
+		goto error1;
+	}
+	XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+	if ((error = xfs_bmbt_updkey(tcur, rkp, level + 1))) {
+		XFS_BMBT_TRACE_CURSOR(tcur, ERROR);
+		goto error1;
+	}
+	xfs_btree_del_cursor(tcur, XFS_BTREE_NOERROR);
+	XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+	*stat = 1;
+	return 0;
+error0:
+	XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+error1:
+	xfs_btree_del_cursor(tcur, XFS_BTREE_ERROR);
+	return error;
+}
+
+/*
+ * Determine the extent state.
+ */
+/* ARGSUSED */
+STATIC xfs_exntst_t
+xfs_extent_state(
+	xfs_filblks_t		blks,
+	int			extent_flag)
+{
+	if (extent_flag) {
+		ASSERT(blks != 0);	/* saved for DMIG */
+		return XFS_EXT_UNWRITTEN;
+	}
+	return XFS_EXT_NORM;
+}
+
+
+/*
+ * Split cur/level block in half.
+ * Return new block number and its first record (to be inserted into parent).
+ */
+STATIC int					/* error */
+xfs_bmbt_split(
+	xfs_btree_cur_t		*cur,
+	int			level,
+	xfs_fsblock_t		*bnop,
+	xfs_bmbt_key_t		*keyp,
+	xfs_btree_cur_t		**curp,
+	int			*stat)		/* success/failure */
+{
+	xfs_alloc_arg_t		args;		/* block allocation args */
+	int			error;		/* error return value */
+#ifdef XFS_BMBT_TRACE
+	static char		fname[] = "xfs_bmbt_split";
+#endif
+	int			i;		/* loop counter */
+	xfs_fsblock_t		lbno;		/* left sibling block number */
+	xfs_buf_t		*lbp;		/* left buffer pointer */
+	xfs_bmbt_block_t	*left;		/* left btree block */
+	xfs_bmbt_key_t		*lkp;		/* left btree key */
+	xfs_bmbt_ptr_t		*lpp;		/* left address pointer */
+	xfs_bmbt_rec_t		*lrp;		/* left record pointer */
+	xfs_buf_t		*rbp;		/* right buffer pointer */
+	xfs_bmbt_block_t	*right;		/* right btree block */
+	xfs_bmbt_key_t		*rkp;		/* right btree key */
+	xfs_bmbt_ptr_t		*rpp;		/* right address pointer */
+	xfs_bmbt_block_t	*rrblock;	/* right-right btree block */
+	xfs_buf_t		*rrbp;		/* right-right buffer pointer */
+	xfs_bmbt_rec_t		*rrp;		/* right record pointer */
+
+	XFS_BMBT_TRACE_CURSOR(cur, ENTRY);
+	XFS_BMBT_TRACE_ARGIFK(cur, level, *bnop, keyp);
+	args.tp = cur->bc_tp;
+	args.mp = cur->bc_mp;
+	lbp = cur->bc_bufs[level];
+	lbno = XFS_DADDR_TO_FSB(args.mp, XFS_BUF_ADDR(lbp));
+	left = XFS_BUF_TO_BMBT_BLOCK(lbp);
+	args.fsbno = cur->bc_private.b.firstblock;
+	if (args.fsbno == NULLFSBLOCK) {
+		args.fsbno = lbno;
+		args.type = XFS_ALLOCTYPE_START_BNO;
+	} else if (cur->bc_private.b.flist->xbf_low)
+		args.type = XFS_ALLOCTYPE_FIRST_AG;
+	else
+		args.type = XFS_ALLOCTYPE_NEAR_BNO;
+	args.mod = args.minleft = args.alignment = args.total = args.isfl =
+		args.userdata = args.minalignslop = 0;
+	args.minlen = args.maxlen = args.prod = 1;
+	args.wasdel = cur->bc_private.b.flags & XFS_BTCUR_BPRV_WASDEL;
+	if (!args.wasdel && xfs_trans_get_block_res(args.tp) == 0) {
+		XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+		return XFS_ERROR(ENOSPC);
+	}
+	if ((error = xfs_alloc_vextent(&args))) {
+		XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+		return error;
+	}
+	if (args.fsbno == NULLFSBLOCK) {
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		*stat = 0;
+		return 0;
+	}
+	ASSERT(args.len == 1);
+	cur->bc_private.b.firstblock = args.fsbno;
+	cur->bc_private.b.allocated++;
+	cur->bc_private.b.ip->i_d.di_nblocks++;
+	xfs_trans_log_inode(args.tp, cur->bc_private.b.ip, XFS_ILOG_CORE);
+	XFS_TRANS_MOD_DQUOT_BYINO(args.mp, args.tp, cur->bc_private.b.ip,
+			XFS_TRANS_DQ_BCOUNT, 1L);
+	rbp = xfs_btree_get_bufl(args.mp, args.tp, args.fsbno, 0);
+	right = XFS_BUF_TO_BMBT_BLOCK(rbp);
+#ifdef DEBUG
+	if ((error = xfs_btree_check_lblock(cur, left, level, rbp))) {
+		XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+		return error;
+	}
+#endif
+	INT_SET(right->bb_magic, ARCH_CONVERT, XFS_BMAP_MAGIC);
+	right->bb_level = left->bb_level; /* INT_: direct copy */
+	INT_SET(right->bb_numrecs, ARCH_CONVERT, (__uint16_t)(INT_GET(left->bb_numrecs, ARCH_CONVERT) / 2));
+	if ((INT_GET(left->bb_numrecs, ARCH_CONVERT) & 1) &&
+	    cur->bc_ptrs[level] <= INT_GET(right->bb_numrecs, ARCH_CONVERT) + 1)
+		INT_MOD(right->bb_numrecs, ARCH_CONVERT, +1);
+	i = INT_GET(left->bb_numrecs, ARCH_CONVERT) - INT_GET(right->bb_numrecs, ARCH_CONVERT) + 1;
+	if (level > 0) {
+		lkp = XFS_BMAP_KEY_IADDR(left, i, cur);
+		lpp = XFS_BMAP_PTR_IADDR(left, i, cur);
+		rkp = XFS_BMAP_KEY_IADDR(right, 1, cur);
+		rpp = XFS_BMAP_PTR_IADDR(right, 1, cur);
+#ifdef DEBUG
+		for (i = 0; i < INT_GET(right->bb_numrecs, ARCH_CONVERT); i++) {
+			if ((error = xfs_btree_check_lptr(cur, INT_GET(lpp[i], ARCH_CONVERT), level))) {
+				XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+				return error;
+			}
+		}
+#endif
+		memcpy(rkp, lkp, INT_GET(right->bb_numrecs, ARCH_CONVERT) * sizeof(*rkp));
+		memcpy(rpp, lpp, INT_GET(right->bb_numrecs, ARCH_CONVERT) * sizeof(*rpp));
+		xfs_bmbt_log_keys(cur, rbp, 1, INT_GET(right->bb_numrecs, ARCH_CONVERT));
+		xfs_bmbt_log_ptrs(cur, rbp, 1, INT_GET(right->bb_numrecs, ARCH_CONVERT));
+		keyp->br_startoff = INT_GET(rkp->br_startoff, ARCH_CONVERT);
+	} else {
+		lrp = XFS_BMAP_REC_IADDR(left, i, cur);
+		rrp = XFS_BMAP_REC_IADDR(right, 1, cur);
+		memcpy(rrp, lrp, INT_GET(right->bb_numrecs, ARCH_CONVERT) * sizeof(*rrp));
+		xfs_bmbt_log_recs(cur, rbp, 1, INT_GET(right->bb_numrecs, ARCH_CONVERT));
+		keyp->br_startoff = xfs_bmbt_disk_get_startoff(rrp);
+	}
+	INT_MOD(left->bb_numrecs, ARCH_CONVERT, -(INT_GET(right->bb_numrecs, ARCH_CONVERT)));
+	right->bb_rightsib = left->bb_rightsib; /* INT_: direct copy */
+	INT_SET(left->bb_rightsib, ARCH_CONVERT, args.fsbno);
+	INT_SET(right->bb_leftsib, ARCH_CONVERT, lbno);
+	xfs_bmbt_log_block(cur, rbp, XFS_BB_ALL_BITS);
+	xfs_bmbt_log_block(cur, lbp, XFS_BB_NUMRECS | XFS_BB_RIGHTSIB);
+	if (INT_GET(right->bb_rightsib, ARCH_CONVERT) != NULLDFSBNO) {
+		if ((error = xfs_btree_read_bufl(args.mp, args.tp,
+				INT_GET(right->bb_rightsib, ARCH_CONVERT), 0, &rrbp,
+				XFS_BMAP_BTREE_REF))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			return error;
+		}
+		rrblock = XFS_BUF_TO_BMBT_BLOCK(rrbp);
+		if ((error = xfs_btree_check_lblock(cur, rrblock, level, rrbp))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			return error;
+		}
+		INT_SET(rrblock->bb_leftsib, ARCH_CONVERT, args.fsbno);
+		xfs_bmbt_log_block(cur, rrbp, XFS_BB_LEFTSIB);
+	}
+	if (cur->bc_ptrs[level] > INT_GET(left->bb_numrecs, ARCH_CONVERT) + 1) {
+		xfs_btree_setbuf(cur, level, rbp);
+		cur->bc_ptrs[level] -= INT_GET(left->bb_numrecs, ARCH_CONVERT);
+	}
+	if (level + 1 < cur->bc_nlevels) {
+		if ((error = xfs_btree_dup_cursor(cur, curp))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			return error;
+		}
+		(*curp)->bc_ptrs[level + 1]++;
+	}
+	*bnop = args.fsbno;
+	XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+	*stat = 1;
+	return 0;
+}
+
+
+/*
+ * Update keys for the record.
+ */
+STATIC int
+xfs_bmbt_updkey(
+	xfs_btree_cur_t		*cur,
+	xfs_bmbt_key_t		*keyp,	/* on-disk format */
+	int			level)
+{
+	xfs_bmbt_block_t	*block;
+	xfs_buf_t		*bp;
+#ifdef DEBUG
+	int			error;
+#endif
+#ifdef XFS_BMBT_TRACE
+	static char		fname[] = "xfs_bmbt_updkey";
+#endif
+	xfs_bmbt_key_t		*kp;
+	int			ptr;
+
+	ASSERT(level >= 1);
+	XFS_BMBT_TRACE_CURSOR(cur, ENTRY);
+	XFS_BMBT_TRACE_ARGIK(cur, level, keyp);
+	for (ptr = 1; ptr == 1 && level < cur->bc_nlevels; level++) {
+		block = xfs_bmbt_get_block(cur, level, &bp);
+#ifdef DEBUG
+		if ((error = xfs_btree_check_lblock(cur, block, level, bp))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			return error;
+		}
+#endif
+		ptr = cur->bc_ptrs[level];
+		kp = XFS_BMAP_KEY_IADDR(block, ptr, cur);
+		*kp = *keyp;
+		xfs_bmbt_log_keys(cur, bp, ptr, ptr);
+	}
+	XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+	return 0;
+}
+
+/*
+ * Convert on-disk form of btree root to in-memory form.
+ */
+void
+xfs_bmdr_to_bmbt(
+	xfs_bmdr_block_t	*dblock,
+	int			dblocklen,
+	xfs_bmbt_block_t	*rblock,
+	int			rblocklen)
+{
+	int			dmxr;
+	xfs_bmbt_key_t		*fkp;
+	xfs_bmbt_ptr_t		*fpp;
+	xfs_bmbt_key_t		*tkp;
+	xfs_bmbt_ptr_t		*tpp;
+
+	INT_SET(rblock->bb_magic, ARCH_CONVERT, XFS_BMAP_MAGIC);
+	rblock->bb_level = dblock->bb_level;	/* both in on-disk format */
+	ASSERT(INT_GET(rblock->bb_level, ARCH_CONVERT) > 0);
+	rblock->bb_numrecs = dblock->bb_numrecs;/* both in on-disk format */
+	INT_SET(rblock->bb_leftsib, ARCH_CONVERT, NULLDFSBNO);
+	INT_SET(rblock->bb_rightsib, ARCH_CONVERT, NULLDFSBNO);
+	dmxr = (int)XFS_BTREE_BLOCK_MAXRECS(dblocklen, xfs_bmdr, 0);
+	fkp = XFS_BTREE_KEY_ADDR(dblocklen, xfs_bmdr, dblock, 1, dmxr);
+	tkp = XFS_BMAP_BROOT_KEY_ADDR(rblock, 1, rblocklen);
+	fpp = XFS_BTREE_PTR_ADDR(dblocklen, xfs_bmdr, dblock, 1, dmxr);
+	tpp = XFS_BMAP_BROOT_PTR_ADDR(rblock, 1, rblocklen);
+	dmxr = INT_GET(dblock->bb_numrecs, ARCH_CONVERT);
+	memcpy(tkp, fkp, sizeof(*fkp) * dmxr);
+	memcpy(tpp, fpp, sizeof(*fpp) * dmxr); /* INT_: direct copy */
+}
+
+/*
+ * Decrement cursor by one record at the level.
+ * For nonzero levels the leaf-ward information is untouched.
+ */
+int						/* error */
+xfs_bmbt_decrement(
+	xfs_btree_cur_t		*cur,
+	int			level,
+	int			*stat)		/* success/failure */
+{
+	xfs_bmbt_block_t	*block;
+	xfs_buf_t		*bp;
+	int			error;		/* error return value */
+#ifdef XFS_BMBT_TRACE
+	static char		fname[] = "xfs_bmbt_decrement";
+#endif
+	xfs_fsblock_t		fsbno;
+	int			lev;
+	xfs_mount_t		*mp;
+	xfs_trans_t		*tp;
+
+	XFS_BMBT_TRACE_CURSOR(cur, ENTRY);
+	XFS_BMBT_TRACE_ARGI(cur, level);
+	ASSERT(level < cur->bc_nlevels);
+	if (level < cur->bc_nlevels - 1)
+		xfs_btree_readahead(cur, level, XFS_BTCUR_LEFTRA);
+	if (--cur->bc_ptrs[level] > 0) {
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		*stat = 1;
+		return 0;
+	}
+	block = xfs_bmbt_get_block(cur, level, &bp);
+#ifdef DEBUG
+	if ((error = xfs_btree_check_lblock(cur, block, level, bp))) {
+		XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+		return error;
+	}
+#endif
+	if (INT_GET(block->bb_leftsib, ARCH_CONVERT) == NULLDFSBNO) {
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		*stat = 0;
+		return 0;
+	}
+	for (lev = level + 1; lev < cur->bc_nlevels; lev++) {
+		if (--cur->bc_ptrs[lev] > 0)
+			break;
+		if (lev < cur->bc_nlevels - 1)
+			xfs_btree_readahead(cur, lev, XFS_BTCUR_LEFTRA);
+	}
+	if (lev == cur->bc_nlevels) {
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		*stat = 0;
+		return 0;
+	}
+	tp = cur->bc_tp;
+	mp = cur->bc_mp;
+	for (block = xfs_bmbt_get_block(cur, lev, &bp); lev > level; ) {
+		fsbno = INT_GET(*XFS_BMAP_PTR_IADDR(block, cur->bc_ptrs[lev], cur), ARCH_CONVERT);
+		if ((error = xfs_btree_read_bufl(mp, tp, fsbno, 0, &bp,
+				XFS_BMAP_BTREE_REF))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			return error;
+		}
+		lev--;
+		xfs_btree_setbuf(cur, lev, bp);
+		block = XFS_BUF_TO_BMBT_BLOCK(bp);
+		if ((error = xfs_btree_check_lblock(cur, block, lev, bp))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			return error;
+		}
+		cur->bc_ptrs[lev] = INT_GET(block->bb_numrecs, ARCH_CONVERT);
+	}
+	XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+	*stat = 1;
+	return 0;
+}
+
+/*
+ * Delete the record pointed to by cur.
+ */
+int					/* error */
+xfs_bmbt_delete(
+	xfs_btree_cur_t	*cur,
+	int		*stat)		/* success/failure */
+{
+	int		error;		/* error return value */
+#ifdef XFS_BMBT_TRACE
+	static char	fname[] = "xfs_bmbt_delete";
+#endif
+	int		i;
+	int		level;
+
+	XFS_BMBT_TRACE_CURSOR(cur, ENTRY);
+	for (level = 0, i = 2; i == 2; level++) {
+		if ((error = xfs_bmbt_delrec(cur, level, &i))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			return error;
+		}
+	}
+	if (i == 0) {
+		for (level = 1; level < cur->bc_nlevels; level++) {
+			if (cur->bc_ptrs[level] == 0) {
+				if ((error = xfs_bmbt_decrement(cur, level,
+						&i))) {
+					XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+					return error;
+				}
+				break;
+			}
+		}
+	}
+	XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+	*stat = i;
+	return 0;
+}
+
+/*
+ * Convert a compressed bmap extent record to an uncompressed form.
+ * This code must be in sync with the routines xfs_bmbt_get_startoff,
+ * xfs_bmbt_get_startblock, xfs_bmbt_get_blockcount and xfs_bmbt_get_state.
+ */
+
+STATIC __inline__ void
+__xfs_bmbt_get_all(
+		__uint64_t l0,
+		__uint64_t l1,
+		xfs_bmbt_irec_t *s)
+{
+	int	ext_flag;
+	xfs_exntst_t st;
+
+	ext_flag = (int)(l0 >> (64 - BMBT_EXNTFLAG_BITLEN));
+	s->br_startoff = ((xfs_fileoff_t)l0 &
+			   XFS_MASK64LO(64 - BMBT_EXNTFLAG_BITLEN)) >> 9;
+#if XFS_BIG_BLKNOS
+	s->br_startblock = (((xfs_fsblock_t)l0 & XFS_MASK64LO(9)) << 43) |
+			   (((xfs_fsblock_t)l1) >> 21);
+#else
+#ifdef DEBUG
+	{
+		xfs_dfsbno_t	b;
+
+		b = (((xfs_dfsbno_t)l0 & XFS_MASK64LO(9)) << 43) |
+		    (((xfs_dfsbno_t)l1) >> 21);
+		ASSERT((b >> 32) == 0 || ISNULLDSTARTBLOCK(b));
+		s->br_startblock = (xfs_fsblock_t)b;
+	}
+#else	/* !DEBUG */
+	s->br_startblock = (xfs_fsblock_t)(((xfs_dfsbno_t)l1) >> 21);
+#endif	/* DEBUG */
+#endif	/* XFS_BIG_BLKNOS */
+	s->br_blockcount = (xfs_filblks_t)(l1 & XFS_MASK64LO(21));
+	/* This is xfs_extent_state() in-line */
+	if (ext_flag) {
+		ASSERT(s->br_blockcount != 0);	/* saved for DMIG */
+		st = XFS_EXT_UNWRITTEN;
+	} else
+		st = XFS_EXT_NORM;
+	s->br_state = st;
+}
+
+void
+xfs_bmbt_get_all(
+	xfs_bmbt_rec_t	*r,
+	xfs_bmbt_irec_t *s)
+{
+	__xfs_bmbt_get_all(r->l0, r->l1, s);
+}
+
+/*
+ * Get the block pointer for the given level of the cursor.
+ * Fill in the buffer pointer, if applicable.
+ */
+xfs_bmbt_block_t *
+xfs_bmbt_get_block(
+	xfs_btree_cur_t		*cur,
+	int			level,
+	xfs_buf_t		**bpp)
+{
+	xfs_ifork_t		*ifp;
+	xfs_bmbt_block_t	*rval;
+
+	if (level < cur->bc_nlevels - 1) {
+		*bpp = cur->bc_bufs[level];
+		rval = XFS_BUF_TO_BMBT_BLOCK(*bpp);
+	} else {
+		*bpp = NULL;
+		ifp = XFS_IFORK_PTR(cur->bc_private.b.ip,
+			cur->bc_private.b.whichfork);
+		rval = ifp->if_broot;
+	}
+	return rval;
+}
+
+/*
+ * Extract the blockcount field from an in memory bmap extent record.
+ */
+xfs_filblks_t
+xfs_bmbt_get_blockcount(
+	xfs_bmbt_rec_t	*r)
+{
+	return (xfs_filblks_t)(r->l1 & XFS_MASK64LO(21));
+}
+
+/*
+ * Extract the startblock field from an in memory bmap extent record.
+ */
+xfs_fsblock_t
+xfs_bmbt_get_startblock(
+	xfs_bmbt_rec_t	*r)
+{
+#if XFS_BIG_BLKNOS
+	return (((xfs_fsblock_t)r->l0 & XFS_MASK64LO(9)) << 43) |
+	       (((xfs_fsblock_t)r->l1) >> 21);
+#else
+#ifdef DEBUG
+	xfs_dfsbno_t	b;
+
+	b = (((xfs_dfsbno_t)r->l0 & XFS_MASK64LO(9)) << 43) |
+	    (((xfs_dfsbno_t)r->l1) >> 21);
+	ASSERT((b >> 32) == 0 || ISNULLDSTARTBLOCK(b));
+	return (xfs_fsblock_t)b;
+#else	/* !DEBUG */
+	return (xfs_fsblock_t)(((xfs_dfsbno_t)r->l1) >> 21);
+#endif	/* DEBUG */
+#endif	/* XFS_BIG_BLKNOS */
+}
+
+/*
+ * Extract the startoff field from an in memory bmap extent record.
+ */
+xfs_fileoff_t
+xfs_bmbt_get_startoff(
+	xfs_bmbt_rec_t	*r)
+{
+	return ((xfs_fileoff_t)r->l0 &
+		 XFS_MASK64LO(64 - BMBT_EXNTFLAG_BITLEN)) >> 9;
+}
+
+xfs_exntst_t
+xfs_bmbt_get_state(
+	xfs_bmbt_rec_t	*r)
+{
+	int	ext_flag;
+
+	ext_flag = (int)((r->l0) >> (64 - BMBT_EXNTFLAG_BITLEN));
+	return xfs_extent_state(xfs_bmbt_get_blockcount(r),
+				ext_flag);
+}
+
+#if ARCH_CONVERT != ARCH_NOCONVERT
+/* Endian flipping versions of the bmbt extraction functions */
+void
+xfs_bmbt_disk_get_all(
+	xfs_bmbt_rec_t	*r,
+	xfs_bmbt_irec_t *s)
+{
+	__uint64_t	l0, l1;
+
+	l0 = INT_GET(r->l0, ARCH_CONVERT);
+	l1 = INT_GET(r->l1, ARCH_CONVERT);
+
+	__xfs_bmbt_get_all(l0, l1, s);
+}
+
+/*
+ * Extract the blockcount field from an on disk bmap extent record.
+ */
+xfs_filblks_t
+xfs_bmbt_disk_get_blockcount(
+	xfs_bmbt_rec_t	*r)
+{
+	return (xfs_filblks_t)(INT_GET(r->l1, ARCH_CONVERT) & XFS_MASK64LO(21));
+}
+
+/*
+ * Extract the startblock field from an on disk bmap extent record.
+ */
+xfs_fsblock_t
+xfs_bmbt_disk_get_startblock(
+	xfs_bmbt_rec_t	*r)
+{
+#if XFS_BIG_BLKNOS
+	return (((xfs_fsblock_t)INT_GET(r->l0, ARCH_CONVERT) & XFS_MASK64LO(9)) << 43) |
+	       (((xfs_fsblock_t)INT_GET(r->l1, ARCH_CONVERT)) >> 21);
+#else
+#ifdef DEBUG
+	xfs_dfsbno_t	b;
+
+	b = (((xfs_dfsbno_t)INT_GET(r->l0, ARCH_CONVERT) & XFS_MASK64LO(9)) << 43) |
+	    (((xfs_dfsbno_t)INT_GET(r->l1, ARCH_CONVERT)) >> 21);
+	ASSERT((b >> 32) == 0 || ISNULLDSTARTBLOCK(b));
+	return (xfs_fsblock_t)b;
+#else	/* !DEBUG */
+	return (xfs_fsblock_t)(((xfs_dfsbno_t)INT_GET(r->l1, ARCH_CONVERT)) >> 21);
+#endif	/* DEBUG */
+#endif	/* XFS_BIG_BLKNOS */
+}
+
+/*
+ * Extract the startoff field from a disk format bmap extent record.
+ */
+xfs_fileoff_t
+xfs_bmbt_disk_get_startoff(
+	xfs_bmbt_rec_t	*r)
+{
+	return ((xfs_fileoff_t)INT_GET(r->l0, ARCH_CONVERT) &
+		 XFS_MASK64LO(64 - BMBT_EXNTFLAG_BITLEN)) >> 9;
+}
+
+xfs_exntst_t
+xfs_bmbt_disk_get_state(
+	xfs_bmbt_rec_t  *r)
+{
+	int	ext_flag;
+
+	ext_flag = (int)((INT_GET(r->l0, ARCH_CONVERT)) >> (64 - BMBT_EXNTFLAG_BITLEN));
+	return xfs_extent_state(xfs_bmbt_disk_get_blockcount(r),
+				ext_flag);
+}
+#endif
+
+
+/*
+ * Increment cursor by one record at the level.
+ * For nonzero levels the leaf-ward information is untouched.
+ */
+int						/* error */
+xfs_bmbt_increment(
+	xfs_btree_cur_t		*cur,
+	int			level,
+	int			*stat)		/* success/failure */
+{
+	xfs_bmbt_block_t	*block;
+	xfs_buf_t		*bp;
+	int			error;		/* error return value */
+#ifdef XFS_BMBT_TRACE
+	static char		fname[] = "xfs_bmbt_increment";
+#endif
+	xfs_fsblock_t		fsbno;
+	int			lev;
+	xfs_mount_t		*mp;
+	xfs_trans_t		*tp;
+
+	XFS_BMBT_TRACE_CURSOR(cur, ENTRY);
+	XFS_BMBT_TRACE_ARGI(cur, level);
+	ASSERT(level < cur->bc_nlevels);
+	if (level < cur->bc_nlevels - 1)
+		xfs_btree_readahead(cur, level, XFS_BTCUR_RIGHTRA);
+	block = xfs_bmbt_get_block(cur, level, &bp);
+#ifdef DEBUG
+	if ((error = xfs_btree_check_lblock(cur, block, level, bp))) {
+		XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+		return error;
+	}
+#endif
+	if (++cur->bc_ptrs[level] <= INT_GET(block->bb_numrecs, ARCH_CONVERT)) {
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		*stat = 1;
+		return 0;
+	}
+	if (INT_GET(block->bb_rightsib, ARCH_CONVERT) == NULLDFSBNO) {
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		*stat = 0;
+		return 0;
+	}
+	for (lev = level + 1; lev < cur->bc_nlevels; lev++) {
+		block = xfs_bmbt_get_block(cur, lev, &bp);
+#ifdef DEBUG
+		if ((error = xfs_btree_check_lblock(cur, block, lev, bp))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			return error;
+		}
+#endif
+		if (++cur->bc_ptrs[lev] <= INT_GET(block->bb_numrecs, ARCH_CONVERT))
+			break;
+		if (lev < cur->bc_nlevels - 1)
+			xfs_btree_readahead(cur, lev, XFS_BTCUR_RIGHTRA);
+	}
+	if (lev == cur->bc_nlevels) {
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		*stat = 0;
+		return 0;
+	}
+	tp = cur->bc_tp;
+	mp = cur->bc_mp;
+	for (block = xfs_bmbt_get_block(cur, lev, &bp); lev > level; ) {
+		fsbno = INT_GET(*XFS_BMAP_PTR_IADDR(block, cur->bc_ptrs[lev], cur), ARCH_CONVERT);
+		if ((error = xfs_btree_read_bufl(mp, tp, fsbno, 0, &bp,
+				XFS_BMAP_BTREE_REF))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			return error;
+		}
+		lev--;
+		xfs_btree_setbuf(cur, lev, bp);
+		block = XFS_BUF_TO_BMBT_BLOCK(bp);
+		if ((error = xfs_btree_check_lblock(cur, block, lev, bp))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			return error;
+		}
+		cur->bc_ptrs[lev] = 1;
+	}
+	XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+	*stat = 1;
+	return 0;
+}
+
+/*
+ * Insert the current record at the point referenced by cur.
+ */
+int					/* error */
+xfs_bmbt_insert(
+	xfs_btree_cur_t	*cur,
+	int		*stat)		/* success/failure */
+{
+	int		error;		/* error return value */
+#ifdef XFS_BMBT_TRACE
+	static char	fname[] = "xfs_bmbt_insert";
+#endif
+	int		i;
+	int		level;
+	xfs_fsblock_t	nbno;
+	xfs_btree_cur_t	*ncur;
+	xfs_bmbt_rec_t	nrec;
+	xfs_btree_cur_t	*pcur;
+
+	XFS_BMBT_TRACE_CURSOR(cur, ENTRY);
+	level = 0;
+	nbno = NULLFSBLOCK;
+	xfs_bmbt_disk_set_all(&nrec, &cur->bc_rec.b);
+	ncur = (xfs_btree_cur_t *)0;
+	pcur = cur;
+	do {
+		if ((error = xfs_bmbt_insrec(pcur, level++, &nbno, &nrec, &ncur,
+				&i))) {
+			if (pcur != cur)
+				xfs_btree_del_cursor(pcur, XFS_BTREE_ERROR);
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			return error;
+		}
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		if (pcur != cur && (ncur || nbno == NULLFSBLOCK)) {
+			cur->bc_nlevels = pcur->bc_nlevels;
+			cur->bc_private.b.allocated +=
+				pcur->bc_private.b.allocated;
+			pcur->bc_private.b.allocated = 0;
+			ASSERT((cur->bc_private.b.firstblock != NULLFSBLOCK) ||
+			       (cur->bc_private.b.ip->i_d.di_flags &
+				XFS_DIFLAG_REALTIME));
+			cur->bc_private.b.firstblock =
+				pcur->bc_private.b.firstblock;
+			ASSERT(cur->bc_private.b.flist ==
+			       pcur->bc_private.b.flist);
+			xfs_btree_del_cursor(pcur, XFS_BTREE_NOERROR);
+		}
+		if (ncur) {
+			pcur = ncur;
+			ncur = (xfs_btree_cur_t *)0;
+		}
+	} while (nbno != NULLFSBLOCK);
+	XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+	*stat = i;
+	return 0;
+error0:
+	XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+	return error;
+}
+
+/*
+ * Log fields from the btree block header.
+ */
+void
+xfs_bmbt_log_block(
+	xfs_btree_cur_t		*cur,
+	xfs_buf_t		*bp,
+	int			fields)
+{
+	int			first;
+#ifdef XFS_BMBT_TRACE
+	static char		fname[] = "xfs_bmbt_log_block";
+#endif
+	int			last;
+	xfs_trans_t		*tp;
+	static const short	offsets[] = {
+		offsetof(xfs_bmbt_block_t, bb_magic),
+		offsetof(xfs_bmbt_block_t, bb_level),
+		offsetof(xfs_bmbt_block_t, bb_numrecs),
+		offsetof(xfs_bmbt_block_t, bb_leftsib),
+		offsetof(xfs_bmbt_block_t, bb_rightsib),
+		sizeof(xfs_bmbt_block_t)
+	};
+
+	XFS_BMBT_TRACE_CURSOR(cur, ENTRY);
+	XFS_BMBT_TRACE_ARGBI(cur, bp, fields);
+	tp = cur->bc_tp;
+	if (bp) {
+		xfs_btree_offsets(fields, offsets, XFS_BB_NUM_BITS, &first,
+				  &last);
+		xfs_trans_log_buf(tp, bp, first, last);
+	} else
+		xfs_trans_log_inode(tp, cur->bc_private.b.ip,
+			XFS_ILOG_FBROOT(cur->bc_private.b.whichfork));
+	XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+}
+
+/*
+ * Log record values from the btree block.
+ */
+void
+xfs_bmbt_log_recs(
+	xfs_btree_cur_t		*cur,
+	xfs_buf_t		*bp,
+	int			rfirst,
+	int			rlast)
+{
+	xfs_bmbt_block_t	*block;
+	int			first;
+#ifdef XFS_BMBT_TRACE
+	static char		fname[] = "xfs_bmbt_log_recs";
+#endif
+	int			last;
+	xfs_bmbt_rec_t		*rp;
+	xfs_trans_t		*tp;
+
+	XFS_BMBT_TRACE_CURSOR(cur, ENTRY);
+	XFS_BMBT_TRACE_ARGBII(cur, bp, rfirst, rlast);
+	ASSERT(bp);
+	tp = cur->bc_tp;
+	block = XFS_BUF_TO_BMBT_BLOCK(bp);
+	rp = XFS_BMAP_REC_DADDR(block, 1, cur);
+	first = (int)((xfs_caddr_t)&rp[rfirst - 1] - (xfs_caddr_t)block);
+	last = (int)(((xfs_caddr_t)&rp[rlast] - 1) - (xfs_caddr_t)block);
+	xfs_trans_log_buf(tp, bp, first, last);
+	XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+}
+
+int					/* error */
+xfs_bmbt_lookup_eq(
+	xfs_btree_cur_t	*cur,
+	xfs_fileoff_t	off,
+	xfs_fsblock_t	bno,
+	xfs_filblks_t	len,
+	int		*stat)		/* success/failure */
+{
+	cur->bc_rec.b.br_startoff = off;
+	cur->bc_rec.b.br_startblock = bno;
+	cur->bc_rec.b.br_blockcount = len;
+	return xfs_bmbt_lookup(cur, XFS_LOOKUP_EQ, stat);
+}
+
+int					/* error */
+xfs_bmbt_lookup_ge(
+	xfs_btree_cur_t	*cur,
+	xfs_fileoff_t	off,
+	xfs_fsblock_t	bno,
+	xfs_filblks_t	len,
+	int		*stat)		/* success/failure */
+{
+	cur->bc_rec.b.br_startoff = off;
+	cur->bc_rec.b.br_startblock = bno;
+	cur->bc_rec.b.br_blockcount = len;
+	return xfs_bmbt_lookup(cur, XFS_LOOKUP_GE, stat);
+}
+
+int					/* error */
+xfs_bmbt_lookup_le(
+	xfs_btree_cur_t	*cur,
+	xfs_fileoff_t	off,
+	xfs_fsblock_t	bno,
+	xfs_filblks_t	len,
+	int		*stat)		/* success/failure */
+{
+	cur->bc_rec.b.br_startoff = off;
+	cur->bc_rec.b.br_startblock = bno;
+	cur->bc_rec.b.br_blockcount = len;
+	return xfs_bmbt_lookup(cur, XFS_LOOKUP_LE, stat);
+}
+
+/*
+ * Give the bmap btree a new root block.  Copy the old broot contents
+ * down into a real block and make the broot point to it.
+ */
+int						/* error */
+xfs_bmbt_newroot(
+	xfs_btree_cur_t		*cur,		/* btree cursor */
+	int			*logflags,	/* logging flags for inode */
+	int			*stat)		/* return status - 0 fail */
+{
+	xfs_alloc_arg_t		args;		/* allocation arguments */
+	xfs_bmbt_block_t	*block;		/* bmap btree block */
+	xfs_buf_t		*bp;		/* buffer for block */
+	xfs_bmbt_block_t	*cblock;	/* child btree block */
+	xfs_bmbt_key_t		*ckp;		/* child key pointer */
+	xfs_bmbt_ptr_t		*cpp;		/* child ptr pointer */
+	int			error;		/* error return code */
+#ifdef XFS_BMBT_TRACE
+	static char		fname[] = "xfs_bmbt_newroot";
+#endif
+#ifdef DEBUG
+	int			i;		/* loop counter */
+#endif
+	xfs_bmbt_key_t		*kp;		/* pointer to bmap btree key */
+	int			level;		/* btree level */
+	xfs_bmbt_ptr_t		*pp;		/* pointer to bmap block addr */
+
+	XFS_BMBT_TRACE_CURSOR(cur, ENTRY);
+	level = cur->bc_nlevels - 1;
+	block = xfs_bmbt_get_block(cur, level, &bp);
+	/*
+	 * Copy the root into a real block.
+	 */
+	args.mp = cur->bc_mp;
+	pp = XFS_BMAP_PTR_IADDR(block, 1, cur);
+	args.tp = cur->bc_tp;
+	args.fsbno = cur->bc_private.b.firstblock;
+	args.mod = args.minleft = args.alignment = args.total = args.isfl =
+		args.userdata = args.minalignslop = 0;
+	args.minlen = args.maxlen = args.prod = 1;
+	args.wasdel = cur->bc_private.b.flags & XFS_BTCUR_BPRV_WASDEL;
+	if (args.fsbno == NULLFSBLOCK) {
+#ifdef DEBUG
+		if ((error = xfs_btree_check_lptr(cur, INT_GET(*pp, ARCH_CONVERT), level))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			return error;
+		}
+#endif
+		args.fsbno = INT_GET(*pp, ARCH_CONVERT);
+		args.type = XFS_ALLOCTYPE_START_BNO;
+	} else if (args.wasdel)
+		args.type = XFS_ALLOCTYPE_FIRST_AG;
+	else
+		args.type = XFS_ALLOCTYPE_NEAR_BNO;
+	if ((error = xfs_alloc_vextent(&args))) {
+		XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+		return error;
+	}
+	if (args.fsbno == NULLFSBLOCK) {
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		*stat = 0;
+		return 0;
+	}
+	ASSERT(args.len == 1);
+	cur->bc_private.b.firstblock = args.fsbno;
+	cur->bc_private.b.allocated++;
+	cur->bc_private.b.ip->i_d.di_nblocks++;
+	XFS_TRANS_MOD_DQUOT_BYINO(args.mp, args.tp, cur->bc_private.b.ip,
+			  XFS_TRANS_DQ_BCOUNT, 1L);
+	bp = xfs_btree_get_bufl(args.mp, cur->bc_tp, args.fsbno, 0);
+	cblock = XFS_BUF_TO_BMBT_BLOCK(bp);
+	*cblock = *block;
+	INT_MOD(block->bb_level, ARCH_CONVERT, +1);
+	INT_SET(block->bb_numrecs, ARCH_CONVERT, 1);
+	cur->bc_nlevels++;
+	cur->bc_ptrs[level + 1] = 1;
+	kp = XFS_BMAP_KEY_IADDR(block, 1, cur);
+	ckp = XFS_BMAP_KEY_IADDR(cblock, 1, cur);
+	memcpy(ckp, kp, INT_GET(cblock->bb_numrecs, ARCH_CONVERT) * sizeof(*kp));
+	cpp = XFS_BMAP_PTR_IADDR(cblock, 1, cur);
+#ifdef DEBUG
+	for (i = 0; i < INT_GET(cblock->bb_numrecs, ARCH_CONVERT); i++) {
+		if ((error = xfs_btree_check_lptr(cur, INT_GET(pp[i], ARCH_CONVERT), level))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			return error;
+		}
+	}
+#endif
+	memcpy(cpp, pp, INT_GET(cblock->bb_numrecs, ARCH_CONVERT) * sizeof(*pp));
+#ifdef DEBUG
+	if ((error = xfs_btree_check_lptr(cur, (xfs_bmbt_ptr_t)args.fsbno,
+			level))) {
+		XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+		return error;
+	}
+#endif
+	INT_SET(*pp, ARCH_CONVERT, args.fsbno);
+	xfs_iroot_realloc(cur->bc_private.b.ip, 1 - INT_GET(cblock->bb_numrecs, ARCH_CONVERT),
+		cur->bc_private.b.whichfork);
+	xfs_btree_setbuf(cur, level, bp);
+	/*
+	 * Do all this logging at the end so that
+	 * the root is at the right level.
+	 */
+	xfs_bmbt_log_block(cur, bp, XFS_BB_ALL_BITS);
+	xfs_bmbt_log_keys(cur, bp, 1, INT_GET(cblock->bb_numrecs, ARCH_CONVERT));
+	xfs_bmbt_log_ptrs(cur, bp, 1, INT_GET(cblock->bb_numrecs, ARCH_CONVERT));
+	XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+	*logflags |=
+		XFS_ILOG_CORE | XFS_ILOG_FBROOT(cur->bc_private.b.whichfork);
+	*stat = 1;
+	return 0;
+}
+
+/*
+ * Set all the fields in a bmap extent record from the uncompressed form.
+ */
+void
+xfs_bmbt_set_all(
+	xfs_bmbt_rec_t	*r,
+	xfs_bmbt_irec_t	*s)
+{
+	int	extent_flag;
+
+	ASSERT((s->br_state == XFS_EXT_NORM) ||
+		(s->br_state == XFS_EXT_UNWRITTEN));
+	extent_flag = (s->br_state == XFS_EXT_NORM) ? 0 : 1;
+	ASSERT((s->br_startoff & XFS_MASK64HI(9)) == 0);
+	ASSERT((s->br_blockcount & XFS_MASK64HI(43)) == 0);
+#if XFS_BIG_BLKNOS
+	ASSERT((s->br_startblock & XFS_MASK64HI(12)) == 0);
+	r->l0 = ((xfs_bmbt_rec_base_t)extent_flag << 63) |
+		 ((xfs_bmbt_rec_base_t)s->br_startoff << 9) |
+		 ((xfs_bmbt_rec_base_t)s->br_startblock >> 43);
+	r->l1 = ((xfs_bmbt_rec_base_t)s->br_startblock << 21) |
+		 ((xfs_bmbt_rec_base_t)s->br_blockcount &
+		 (xfs_bmbt_rec_base_t)XFS_MASK64LO(21));
+#else	/* !XFS_BIG_BLKNOS */
+	if (ISNULLSTARTBLOCK(s->br_startblock)) {
+		r->l0 = ((xfs_bmbt_rec_base_t)extent_flag << 63) |
+			((xfs_bmbt_rec_base_t)s->br_startoff << 9) |
+			  (xfs_bmbt_rec_base_t)XFS_MASK64LO(9);
+		r->l1 = XFS_MASK64HI(11) |
+			  ((xfs_bmbt_rec_base_t)s->br_startblock << 21) |
+			  ((xfs_bmbt_rec_base_t)s->br_blockcount &
+			   (xfs_bmbt_rec_base_t)XFS_MASK64LO(21));
+	} else {
+		r->l0 = ((xfs_bmbt_rec_base_t)extent_flag << 63) |
+			((xfs_bmbt_rec_base_t)s->br_startoff << 9);
+		r->l1 = ((xfs_bmbt_rec_base_t)s->br_startblock << 21) |
+			  ((xfs_bmbt_rec_base_t)s->br_blockcount &
+			   (xfs_bmbt_rec_base_t)XFS_MASK64LO(21));
+	}
+#endif	/* XFS_BIG_BLKNOS */
+}
+
+/*
+ * Set all the fields in a bmap extent record from the arguments.
+ */
+void
+xfs_bmbt_set_allf(
+	xfs_bmbt_rec_t	*r,
+	xfs_fileoff_t	o,
+	xfs_fsblock_t	b,
+	xfs_filblks_t	c,
+	xfs_exntst_t	v)
+{
+	int	extent_flag;
+
+	ASSERT((v == XFS_EXT_NORM) || (v == XFS_EXT_UNWRITTEN));
+	extent_flag = (v == XFS_EXT_NORM) ? 0 : 1;
+	ASSERT((o & XFS_MASK64HI(64-BMBT_STARTOFF_BITLEN)) == 0);
+	ASSERT((c & XFS_MASK64HI(64-BMBT_BLOCKCOUNT_BITLEN)) == 0);
+#if XFS_BIG_BLKNOS
+	ASSERT((b & XFS_MASK64HI(64-BMBT_STARTBLOCK_BITLEN)) == 0);
+	r->l0 = ((xfs_bmbt_rec_base_t)extent_flag << 63) |
+		((xfs_bmbt_rec_base_t)o << 9) |
+		((xfs_bmbt_rec_base_t)b >> 43);
+	r->l1 = ((xfs_bmbt_rec_base_t)b << 21) |
+		((xfs_bmbt_rec_base_t)c &
+		(xfs_bmbt_rec_base_t)XFS_MASK64LO(21));
+#else	/* !XFS_BIG_BLKNOS */
+	if (ISNULLSTARTBLOCK(b)) {
+		r->l0 = ((xfs_bmbt_rec_base_t)extent_flag << 63) |
+			((xfs_bmbt_rec_base_t)o << 9) |
+			 (xfs_bmbt_rec_base_t)XFS_MASK64LO(9);
+		r->l1 = XFS_MASK64HI(11) |
+			  ((xfs_bmbt_rec_base_t)b << 21) |
+			  ((xfs_bmbt_rec_base_t)c &
+			   (xfs_bmbt_rec_base_t)XFS_MASK64LO(21));
+	} else {
+		r->l0 = ((xfs_bmbt_rec_base_t)extent_flag << 63) |
+			((xfs_bmbt_rec_base_t)o << 9);
+		r->l1 = ((xfs_bmbt_rec_base_t)b << 21) |
+			 ((xfs_bmbt_rec_base_t)c &
+			 (xfs_bmbt_rec_base_t)XFS_MASK64LO(21));
+	}
+#endif	/* XFS_BIG_BLKNOS */
+}
+
+#if ARCH_CONVERT != ARCH_NOCONVERT
+/*
+ * Set all the fields in a bmap extent record from the uncompressed form.
+ */
+void
+xfs_bmbt_disk_set_all(
+	xfs_bmbt_rec_t	*r,
+	xfs_bmbt_irec_t *s)
+{
+	int	extent_flag;
+
+	ASSERT((s->br_state == XFS_EXT_NORM) ||
+		(s->br_state == XFS_EXT_UNWRITTEN));
+	extent_flag = (s->br_state == XFS_EXT_NORM) ? 0 : 1;
+	ASSERT((s->br_startoff & XFS_MASK64HI(9)) == 0);
+	ASSERT((s->br_blockcount & XFS_MASK64HI(43)) == 0);
+#if XFS_BIG_BLKNOS
+	ASSERT((s->br_startblock & XFS_MASK64HI(12)) == 0);
+	INT_SET(r->l0, ARCH_CONVERT, ((xfs_bmbt_rec_base_t)extent_flag << 63) |
+		  ((xfs_bmbt_rec_base_t)s->br_startoff << 9) |
+		  ((xfs_bmbt_rec_base_t)s->br_startblock >> 43));
+	INT_SET(r->l1, ARCH_CONVERT, ((xfs_bmbt_rec_base_t)s->br_startblock << 21) |
+		  ((xfs_bmbt_rec_base_t)s->br_blockcount &
+		   (xfs_bmbt_rec_base_t)XFS_MASK64LO(21)));
+#else	/* !XFS_BIG_BLKNOS */
+	if (ISNULLSTARTBLOCK(s->br_startblock)) {
+		INT_SET(r->l0, ARCH_CONVERT, ((xfs_bmbt_rec_base_t)extent_flag << 63) |
+			((xfs_bmbt_rec_base_t)s->br_startoff << 9) |
+			  (xfs_bmbt_rec_base_t)XFS_MASK64LO(9));
+		INT_SET(r->l1, ARCH_CONVERT, XFS_MASK64HI(11) |
+			  ((xfs_bmbt_rec_base_t)s->br_startblock << 21) |
+			  ((xfs_bmbt_rec_base_t)s->br_blockcount &
+			   (xfs_bmbt_rec_base_t)XFS_MASK64LO(21)));
+	} else {
+		INT_SET(r->l0, ARCH_CONVERT, ((xfs_bmbt_rec_base_t)extent_flag << 63) |
+			((xfs_bmbt_rec_base_t)s->br_startoff << 9));
+		INT_SET(r->l1, ARCH_CONVERT, ((xfs_bmbt_rec_base_t)s->br_startblock << 21) |
+			  ((xfs_bmbt_rec_base_t)s->br_blockcount &
+			   (xfs_bmbt_rec_base_t)XFS_MASK64LO(21)));
+	}
+#endif	/* XFS_BIG_BLKNOS */
+}
+
+/*
+ * Set all the fields in a disk format bmap extent record from the arguments.
+ */
+void
+xfs_bmbt_disk_set_allf(
+	xfs_bmbt_rec_t	*r,
+	xfs_fileoff_t	o,
+	xfs_fsblock_t	b,
+	xfs_filblks_t	c,
+	xfs_exntst_t	v)
+{
+	int	extent_flag;
+
+	ASSERT((v == XFS_EXT_NORM) || (v == XFS_EXT_UNWRITTEN));
+	extent_flag = (v == XFS_EXT_NORM) ? 0 : 1;
+	ASSERT((o & XFS_MASK64HI(64-BMBT_STARTOFF_BITLEN)) == 0);
+	ASSERT((c & XFS_MASK64HI(64-BMBT_BLOCKCOUNT_BITLEN)) == 0);
+#if XFS_BIG_BLKNOS
+	ASSERT((b & XFS_MASK64HI(64-BMBT_STARTBLOCK_BITLEN)) == 0);
+	INT_SET(r->l0, ARCH_CONVERT, ((xfs_bmbt_rec_base_t)extent_flag << 63) |
+		((xfs_bmbt_rec_base_t)o << 9) |
+		((xfs_bmbt_rec_base_t)b >> 43));
+	INT_SET(r->l1, ARCH_CONVERT, ((xfs_bmbt_rec_base_t)b << 21) |
+		  ((xfs_bmbt_rec_base_t)c &
+		   (xfs_bmbt_rec_base_t)XFS_MASK64LO(21)));
+#else	/* !XFS_BIG_BLKNOS */
+	if (ISNULLSTARTBLOCK(b)) {
+		INT_SET(r->l0, ARCH_CONVERT, ((xfs_bmbt_rec_base_t)extent_flag << 63) |
+			((xfs_bmbt_rec_base_t)o << 9) |
+			 (xfs_bmbt_rec_base_t)XFS_MASK64LO(9));
+		INT_SET(r->l1, ARCH_CONVERT, XFS_MASK64HI(11) |
+			  ((xfs_bmbt_rec_base_t)b << 21) |
+			  ((xfs_bmbt_rec_base_t)c &
+			   (xfs_bmbt_rec_base_t)XFS_MASK64LO(21)));
+	} else {
+		INT_SET(r->l0, ARCH_CONVERT, ((xfs_bmbt_rec_base_t)extent_flag << 63) |
+			((xfs_bmbt_rec_base_t)o << 9));
+		INT_SET(r->l1, ARCH_CONVERT, ((xfs_bmbt_rec_base_t)b << 21) |
+			  ((xfs_bmbt_rec_base_t)c &
+			   (xfs_bmbt_rec_base_t)XFS_MASK64LO(21)));
+	}
+#endif	/* XFS_BIG_BLKNOS */
+}
+#endif
+
+/*
+ * Set the blockcount field in a bmap extent record.
+ */
+void
+xfs_bmbt_set_blockcount(
+	xfs_bmbt_rec_t	*r,
+	xfs_filblks_t	v)
+{
+	ASSERT((v & XFS_MASK64HI(43)) == 0);
+	r->l1 = (r->l1 & (xfs_bmbt_rec_base_t)XFS_MASK64HI(43)) |
+		  (xfs_bmbt_rec_base_t)(v & XFS_MASK64LO(21));
+}
+
+/*
+ * Set the startblock field in a bmap extent record.
+ */
+void
+xfs_bmbt_set_startblock(
+	xfs_bmbt_rec_t	*r,
+	xfs_fsblock_t	v)
+{
+#if XFS_BIG_BLKNOS
+	ASSERT((v & XFS_MASK64HI(12)) == 0);
+	r->l0 = (r->l0 & (xfs_bmbt_rec_base_t)XFS_MASK64HI(55)) |
+		  (xfs_bmbt_rec_base_t)(v >> 43);
+	r->l1 = (r->l1 & (xfs_bmbt_rec_base_t)XFS_MASK64LO(21)) |
+		  (xfs_bmbt_rec_base_t)(v << 21);
+#else	/* !XFS_BIG_BLKNOS */
+	if (ISNULLSTARTBLOCK(v)) {
+		r->l0 |= (xfs_bmbt_rec_base_t)XFS_MASK64LO(9);
+		r->l1 = (xfs_bmbt_rec_base_t)XFS_MASK64HI(11) |
+			  ((xfs_bmbt_rec_base_t)v << 21) |
+			  (r->l1 & (xfs_bmbt_rec_base_t)XFS_MASK64LO(21));
+	} else {
+		r->l0 &= ~(xfs_bmbt_rec_base_t)XFS_MASK64LO(9);
+		r->l1 = ((xfs_bmbt_rec_base_t)v << 21) |
+			  (r->l1 & (xfs_bmbt_rec_base_t)XFS_MASK64LO(21));
+	}
+#endif	/* XFS_BIG_BLKNOS */
+}
+
+/*
+ * Set the startoff field in a bmap extent record.
+ */
+void
+xfs_bmbt_set_startoff(
+	xfs_bmbt_rec_t	*r,
+	xfs_fileoff_t	v)
+{
+	ASSERT((v & XFS_MASK64HI(9)) == 0);
+	r->l0 = (r->l0 & (xfs_bmbt_rec_base_t) XFS_MASK64HI(1)) |
+		((xfs_bmbt_rec_base_t)v << 9) |
+		  (r->l0 & (xfs_bmbt_rec_base_t)XFS_MASK64LO(9));
+}
+
+/*
+ * Set the extent state field in a bmap extent record.
+ */
+void
+xfs_bmbt_set_state(
+	xfs_bmbt_rec_t	*r,
+	xfs_exntst_t	v)
+{
+	ASSERT(v == XFS_EXT_NORM || v == XFS_EXT_UNWRITTEN);
+	if (v == XFS_EXT_NORM)
+		r->l0 &= XFS_MASK64LO(64 - BMBT_EXNTFLAG_BITLEN);
+	else
+		r->l0 |= XFS_MASK64HI(BMBT_EXNTFLAG_BITLEN);
+}
+
+/*
+ * Convert in-memory form of btree root to on-disk form.
+ */
+void
+xfs_bmbt_to_bmdr(
+	xfs_bmbt_block_t	*rblock,
+	int			rblocklen,
+	xfs_bmdr_block_t	*dblock,
+	int			dblocklen)
+{
+	int			dmxr;
+	xfs_bmbt_key_t		*fkp;
+	xfs_bmbt_ptr_t		*fpp;
+	xfs_bmbt_key_t		*tkp;
+	xfs_bmbt_ptr_t		*tpp;
+
+	ASSERT(INT_GET(rblock->bb_magic, ARCH_CONVERT) == XFS_BMAP_MAGIC);
+	ASSERT(INT_GET(rblock->bb_leftsib, ARCH_CONVERT) == NULLDFSBNO);
+	ASSERT(INT_GET(rblock->bb_rightsib, ARCH_CONVERT) == NULLDFSBNO);
+	ASSERT(INT_GET(rblock->bb_level, ARCH_CONVERT) > 0);
+	dblock->bb_level = rblock->bb_level;	/* both in on-disk format */
+	dblock->bb_numrecs = rblock->bb_numrecs;/* both in on-disk format */
+	dmxr = (int)XFS_BTREE_BLOCK_MAXRECS(dblocklen, xfs_bmdr, 0);
+	fkp = XFS_BMAP_BROOT_KEY_ADDR(rblock, 1, rblocklen);
+	tkp = XFS_BTREE_KEY_ADDR(dblocklen, xfs_bmdr, dblock, 1, dmxr);
+	fpp = XFS_BMAP_BROOT_PTR_ADDR(rblock, 1, rblocklen);
+	tpp = XFS_BTREE_PTR_ADDR(dblocklen, xfs_bmdr, dblock, 1, dmxr);
+	dmxr = INT_GET(dblock->bb_numrecs, ARCH_CONVERT);
+	memcpy(tkp, fkp, sizeof(*fkp) * dmxr);
+	memcpy(tpp, fpp, sizeof(*fpp) * dmxr); /* INT_: direct copy */
+}
+
+/*
+ * Update the record to the passed values.
+ */
+int
+xfs_bmbt_update(
+	xfs_btree_cur_t		*cur,
+	xfs_fileoff_t		off,
+	xfs_fsblock_t		bno,
+	xfs_filblks_t		len,
+	xfs_exntst_t		state)
+{
+	xfs_bmbt_block_t	*block;
+	xfs_buf_t		*bp;
+	int			error;
+#ifdef XFS_BMBT_TRACE
+	static char		fname[] = "xfs_bmbt_update";
+#endif
+	xfs_bmbt_key_t		key;
+	int			ptr;
+	xfs_bmbt_rec_t		*rp;
+
+	XFS_BMBT_TRACE_CURSOR(cur, ENTRY);
+	XFS_BMBT_TRACE_ARGFFFI(cur, (xfs_dfiloff_t)off, (xfs_dfsbno_t)bno,
+		(xfs_dfilblks_t)len, (int)state);
+	block = xfs_bmbt_get_block(cur, 0, &bp);
+#ifdef DEBUG
+	if ((error = xfs_btree_check_lblock(cur, block, 0, bp))) {
+		XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+		return error;
+	}
+#endif
+	ptr = cur->bc_ptrs[0];
+	rp = XFS_BMAP_REC_IADDR(block, ptr, cur);
+	xfs_bmbt_disk_set_allf(rp, off, bno, len, state);
+	xfs_bmbt_log_recs(cur, bp, ptr, ptr);
+	if (ptr > 1) {
+		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+		return 0;
+	}
+	INT_SET(key.br_startoff, ARCH_CONVERT, off);
+	if ((error = xfs_bmbt_updkey(cur, &key, 1))) {
+		XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+		return error;
+	}
+	XFS_BMBT_TRACE_CURSOR(cur, EXIT);
+	return 0;
+}
+
+/*
+ * Check an extent list, which has just been read, for
+ * any bit in the extent flag field. ASSERT on debug
+ * kernels, as this condition should not occur.
+ * Return an error condition (1) if any flags found,
+ * otherwise return 0.
+ */
+
+int
+xfs_check_nostate_extents(
+	xfs_bmbt_rec_t		*ep,
+	xfs_extnum_t		num)
+{
+	for (; num > 0; num--, ep++) {
+		if ((ep->l0 >>
+		     (64 - BMBT_EXNTFLAG_BITLEN)) != 0) {
+			ASSERT(0);
+			return 1;
+		}
+	}
+	return 0;
+}
diff --git a/fs/xfs/xfs_bmap_btree.h b/fs/xfs/xfs_bmap_btree.h
new file mode 100644
index 00000000000000..1c0904d0857bf1
--- /dev/null
+++ b/fs/xfs/xfs_bmap_btree.h
@@ -0,0 +1,701 @@
+/*
+ * Copyright (c) 2000,2002-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.	 Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_BMAP_BTREE_H__
+#define __XFS_BMAP_BTREE_H__
+
+#define XFS_BMAP_MAGIC	0x424d4150	/* 'BMAP' */
+
+struct xfs_btree_cur;
+struct xfs_btree_lblock;
+struct xfs_mount;
+struct xfs_inode;
+
+/*
+ * Bmap root header, on-disk form only.
+ */
+typedef struct xfs_bmdr_block
+{
+	__uint16_t	bb_level;	/* 0 is a leaf */
+	__uint16_t	bb_numrecs;	/* current # of data records */
+} xfs_bmdr_block_t;
+
+/*
+ * Bmap btree record and extent descriptor.
+ * For 32-bit kernels,
+ *  l0:31 is an extent flag (value 1 indicates non-normal).
+ *  l0:0-30 and l1:9-31 are startoff.
+ *  l1:0-8, l2:0-31, and l3:21-31 are startblock.
+ *  l3:0-20 are blockcount.
+ * For 64-bit kernels,
+ *  l0:63 is an extent flag (value 1 indicates non-normal).
+ *  l0:9-62 are startoff.
+ *  l0:0-8 and l1:21-63 are startblock.
+ *  l1:0-20 are blockcount.
+ */
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+
+#define BMBT_TOTAL_BITLEN	128	/* 128 bits, 16 bytes */
+#define BMBT_EXNTFLAG_BITOFF	0
+#define BMBT_EXNTFLAG_BITLEN	1
+#define BMBT_STARTOFF_BITOFF	(BMBT_EXNTFLAG_BITOFF + BMBT_EXNTFLAG_BITLEN)
+#define BMBT_STARTOFF_BITLEN	54
+#define BMBT_STARTBLOCK_BITOFF	(BMBT_STARTOFF_BITOFF + BMBT_STARTOFF_BITLEN)
+#define BMBT_STARTBLOCK_BITLEN	52
+#define BMBT_BLOCKCOUNT_BITOFF	\
+	(BMBT_STARTBLOCK_BITOFF + BMBT_STARTBLOCK_BITLEN)
+#define BMBT_BLOCKCOUNT_BITLEN	(BMBT_TOTAL_BITLEN - BMBT_BLOCKCOUNT_BITOFF)
+
+#else
+
+#define BMBT_TOTAL_BITLEN	128	/* 128 bits, 16 bytes */
+#define BMBT_EXNTFLAG_BITOFF	63
+#define BMBT_EXNTFLAG_BITLEN	1
+#define BMBT_STARTOFF_BITOFF	(BMBT_EXNTFLAG_BITOFF - BMBT_STARTOFF_BITLEN)
+#define BMBT_STARTOFF_BITLEN	54
+#define BMBT_STARTBLOCK_BITOFF	85 /* 128 - 43 (other 9 is in first word) */
+#define BMBT_STARTBLOCK_BITLEN	52
+#define BMBT_BLOCKCOUNT_BITOFF	64 /* Start of second 64 bit container */
+#define BMBT_BLOCKCOUNT_BITLEN	21
+
+#endif
+
+
+#define BMBT_USE_64	1
+
+typedef struct xfs_bmbt_rec_32
+{
+	__uint32_t		l0, l1, l2, l3;
+} xfs_bmbt_rec_32_t;
+typedef struct xfs_bmbt_rec_64
+{
+	__uint64_t		l0, l1;
+} xfs_bmbt_rec_64_t;
+
+typedef __uint64_t	xfs_bmbt_rec_base_t;	/* use this for casts */
+typedef xfs_bmbt_rec_64_t xfs_bmbt_rec_t, xfs_bmdr_rec_t;
+
+/*
+ * Values and macros for delayed-allocation startblock fields.
+ */
+#define STARTBLOCKVALBITS	17
+#define STARTBLOCKMASKBITS	(15 + XFS_BIG_BLKNOS * 20)
+#define DSTARTBLOCKMASKBITS	(15 + 20)
+#define STARTBLOCKMASK		\
+	(((((xfs_fsblock_t)1) << STARTBLOCKMASKBITS) - 1) << STARTBLOCKVALBITS)
+#define DSTARTBLOCKMASK		\
+	(((((xfs_dfsbno_t)1) << DSTARTBLOCKMASKBITS) - 1) << STARTBLOCKVALBITS)
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_ISNULLSTARTBLOCK)
+int isnullstartblock(xfs_fsblock_t x);
+#define ISNULLSTARTBLOCK(x)	isnullstartblock(x)
+#else
+#define ISNULLSTARTBLOCK(x)	(((x) & STARTBLOCKMASK) == STARTBLOCKMASK)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_ISNULLDSTARTBLOCK)
+int isnulldstartblock(xfs_dfsbno_t x);
+#define ISNULLDSTARTBLOCK(x)	isnulldstartblock(x)
+#else
+#define ISNULLDSTARTBLOCK(x)	(((x) & DSTARTBLOCKMASK) == DSTARTBLOCKMASK)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_NULLSTARTBLOCK)
+xfs_fsblock_t nullstartblock(int k);
+#define NULLSTARTBLOCK(k)	nullstartblock(k)
+#else
+#define NULLSTARTBLOCK(k)	\
+	((ASSERT(k < (1 << STARTBLOCKVALBITS))), (STARTBLOCKMASK | (k)))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_STARTBLOCKVAL)
+xfs_filblks_t startblockval(xfs_fsblock_t x);
+#define STARTBLOCKVAL(x)	startblockval(x)
+#else
+#define STARTBLOCKVAL(x)	((xfs_filblks_t)((x) & ~STARTBLOCKMASK))
+#endif
+
+/*
+ * Possible extent formats.
+ */
+typedef enum {
+	XFS_EXTFMT_NOSTATE = 0,
+	XFS_EXTFMT_HASSTATE
+} xfs_exntfmt_t;
+
+/*
+ * Possible extent states.
+ */
+typedef enum {
+	XFS_EXT_NORM, XFS_EXT_UNWRITTEN,
+	XFS_EXT_DMAPI_OFFLINE, XFS_EXT_INVALID
+} xfs_exntst_t;
+
+/*
+ * Extent state and extent format macros.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_EXTFMT_INODE )
+xfs_exntfmt_t xfs_extfmt_inode(struct xfs_inode *ip);
+#define XFS_EXTFMT_INODE(x)	xfs_extfmt_inode(x)
+#else
+#define XFS_EXTFMT_INODE(x) \
+  (XFS_SB_VERSION_HASEXTFLGBIT(&((x)->i_mount->m_sb)) ? \
+	XFS_EXTFMT_HASSTATE : XFS_EXTFMT_NOSTATE)
+#endif
+#define ISUNWRITTEN(x)	((x)->br_state == XFS_EXT_UNWRITTEN)
+
+/*
+ * Incore version of above.
+ */
+typedef struct xfs_bmbt_irec
+{
+	xfs_fileoff_t	br_startoff;	/* starting file offset */
+	xfs_fsblock_t	br_startblock;	/* starting block number */
+	xfs_filblks_t	br_blockcount;	/* number of blocks */
+	xfs_exntst_t	br_state;	/* extent state */
+} xfs_bmbt_irec_t;
+
+/*
+ * Key structure for non-leaf levels of the tree.
+ */
+typedef struct xfs_bmbt_key
+{
+	xfs_dfiloff_t	br_startoff;	/* starting file offset */
+} xfs_bmbt_key_t, xfs_bmdr_key_t;
+
+typedef xfs_dfsbno_t xfs_bmbt_ptr_t, xfs_bmdr_ptr_t;	/* btree pointer type */
+					/* btree block header type */
+typedef struct xfs_btree_lblock xfs_bmbt_block_t;
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BUF_TO_BMBT_BLOCK)
+xfs_bmbt_block_t *xfs_buf_to_bmbt_block(struct xfs_buf *bp);
+#define XFS_BUF_TO_BMBT_BLOCK(bp)		xfs_buf_to_bmbt_block(bp)
+#else
+#define XFS_BUF_TO_BMBT_BLOCK(bp) ((xfs_bmbt_block_t *)(XFS_BUF_PTR(bp)))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_RBLOCK_DSIZE)
+int xfs_bmap_rblock_dsize(int lev, struct xfs_btree_cur *cur);
+#define XFS_BMAP_RBLOCK_DSIZE(lev,cur)		xfs_bmap_rblock_dsize(lev,cur)
+#else
+#define XFS_BMAP_RBLOCK_DSIZE(lev,cur) ((cur)->bc_private.b.forksize)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_RBLOCK_ISIZE)
+int xfs_bmap_rblock_isize(int lev, struct xfs_btree_cur *cur);
+#define XFS_BMAP_RBLOCK_ISIZE(lev,cur)		xfs_bmap_rblock_isize(lev,cur)
+#else
+#define XFS_BMAP_RBLOCK_ISIZE(lev,cur) \
+	((int)XFS_IFORK_PTR((cur)->bc_private.b.ip, \
+			    (cur)->bc_private.b.whichfork)->if_broot_bytes)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_IBLOCK_SIZE)
+int xfs_bmap_iblock_size(int lev, struct xfs_btree_cur *cur);
+#define XFS_BMAP_IBLOCK_SIZE(lev,cur)		xfs_bmap_iblock_size(lev,cur)
+#else
+#define XFS_BMAP_IBLOCK_SIZE(lev,cur) (1 << (cur)->bc_blocklog)
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_BLOCK_DSIZE)
+int xfs_bmap_block_dsize(int lev, struct xfs_btree_cur *cur);
+#define XFS_BMAP_BLOCK_DSIZE(lev,cur)		xfs_bmap_block_dsize(lev,cur)
+#else
+#define XFS_BMAP_BLOCK_DSIZE(lev,cur) \
+	((lev) == (cur)->bc_nlevels - 1 ? \
+		XFS_BMAP_RBLOCK_DSIZE(lev,cur) : \
+		XFS_BMAP_IBLOCK_SIZE(lev,cur))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_BLOCK_ISIZE)
+int xfs_bmap_block_isize(int lev, struct xfs_btree_cur *cur);
+#define XFS_BMAP_BLOCK_ISIZE(lev,cur)		xfs_bmap_block_isize(lev,cur)
+#else
+#define XFS_BMAP_BLOCK_ISIZE(lev,cur) \
+	((lev) == (cur)->bc_nlevels - 1 ? \
+		XFS_BMAP_RBLOCK_ISIZE(lev,cur) : \
+		XFS_BMAP_IBLOCK_SIZE(lev,cur))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_BLOCK_DMAXRECS)
+int xfs_bmap_block_dmaxrecs(int lev, struct xfs_btree_cur *cur);
+#define XFS_BMAP_BLOCK_DMAXRECS(lev,cur)	xfs_bmap_block_dmaxrecs(lev,cur)
+#else
+#define XFS_BMAP_BLOCK_DMAXRECS(lev,cur) \
+	((lev) == (cur)->bc_nlevels - 1 ? \
+		XFS_BTREE_BLOCK_MAXRECS(XFS_BMAP_RBLOCK_DSIZE(lev,cur), \
+			xfs_bmdr, (lev) == 0) : \
+		((cur)->bc_mp->m_bmap_dmxr[(lev) != 0]))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_BLOCK_IMAXRECS)
+int xfs_bmap_block_imaxrecs(int lev, struct xfs_btree_cur *cur);
+#define XFS_BMAP_BLOCK_IMAXRECS(lev,cur)	xfs_bmap_block_imaxrecs(lev,cur)
+#else
+#define XFS_BMAP_BLOCK_IMAXRECS(lev,cur) \
+	((lev) == (cur)->bc_nlevels - 1 ? \
+		XFS_BTREE_BLOCK_MAXRECS(XFS_BMAP_RBLOCK_ISIZE(lev,cur), \
+			xfs_bmbt, (lev) == 0) : \
+		((cur)->bc_mp->m_bmap_dmxr[(lev) != 0]))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_BLOCK_DMINRECS)
+int xfs_bmap_block_dminrecs(int lev, struct xfs_btree_cur *cur);
+#define XFS_BMAP_BLOCK_DMINRECS(lev,cur)	xfs_bmap_block_dminrecs(lev,cur)
+#else
+#define XFS_BMAP_BLOCK_DMINRECS(lev,cur) \
+	((lev) == (cur)->bc_nlevels - 1 ? \
+		XFS_BTREE_BLOCK_MINRECS(XFS_BMAP_RBLOCK_DSIZE(lev,cur), \
+			xfs_bmdr, (lev) == 0) : \
+		((cur)->bc_mp->m_bmap_dmnr[(lev) != 0]))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_BLOCK_IMINRECS)
+int xfs_bmap_block_iminrecs(int lev, struct xfs_btree_cur *cur);
+#define XFS_BMAP_BLOCK_IMINRECS(lev,cur)	xfs_bmap_block_iminrecs(lev,cur)
+#else
+#define XFS_BMAP_BLOCK_IMINRECS(lev,cur) \
+	((lev) == (cur)->bc_nlevels - 1 ? \
+		XFS_BTREE_BLOCK_MINRECS(XFS_BMAP_RBLOCK_ISIZE(lev,cur), \
+			xfs_bmbt, (lev) == 0) : \
+		((cur)->bc_mp->m_bmap_dmnr[(lev) != 0]))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_REC_DADDR)
+xfs_bmbt_rec_t *
+xfs_bmap_rec_daddr(xfs_bmbt_block_t *bb, int i, struct xfs_btree_cur *cur);
+#define XFS_BMAP_REC_DADDR(bb,i,cur)		xfs_bmap_rec_daddr(bb,i,cur)
+#else
+#define XFS_BMAP_REC_DADDR(bb,i,cur) \
+	XFS_BTREE_REC_ADDR(XFS_BMAP_BLOCK_DSIZE(		\
+		INT_GET((bb)->bb_level, ARCH_CONVERT), cur),	\
+		xfs_bmbt, bb, i, XFS_BMAP_BLOCK_DMAXRECS(	\
+			INT_GET((bb)->bb_level, ARCH_CONVERT), cur))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_REC_IADDR)
+xfs_bmbt_rec_t *
+xfs_bmap_rec_iaddr(xfs_bmbt_block_t *bb, int i, struct xfs_btree_cur *cur);
+#define XFS_BMAP_REC_IADDR(bb,i,cur)		xfs_bmap_rec_iaddr(bb,i,cur)
+#else
+#define XFS_BMAP_REC_IADDR(bb,i,cur) \
+	XFS_BTREE_REC_ADDR(XFS_BMAP_BLOCK_ISIZE(		\
+		INT_GET((bb)->bb_level, ARCH_CONVERT), cur),	\
+		xfs_bmbt, bb, i, XFS_BMAP_BLOCK_IMAXRECS(	\
+			INT_GET((bb)->bb_level, ARCH_CONVERT), cur))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_KEY_DADDR)
+xfs_bmbt_key_t *
+xfs_bmap_key_daddr(xfs_bmbt_block_t *bb, int i, struct xfs_btree_cur *cur);
+#define XFS_BMAP_KEY_DADDR(bb,i,cur)		xfs_bmap_key_daddr(bb,i,cur)
+#else
+#define XFS_BMAP_KEY_DADDR(bb,i,cur) \
+	XFS_BTREE_KEY_ADDR(XFS_BMAP_BLOCK_DSIZE(		\
+		INT_GET((bb)->bb_level, ARCH_CONVERT), cur),	\
+		xfs_bmbt, bb, i, XFS_BMAP_BLOCK_DMAXRECS(	\
+			INT_GET((bb)->bb_level, ARCH_CONVERT), cur))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_KEY_IADDR)
+xfs_bmbt_key_t *
+xfs_bmap_key_iaddr(xfs_bmbt_block_t *bb, int i, struct xfs_btree_cur *cur);
+#define XFS_BMAP_KEY_IADDR(bb,i,cur)		xfs_bmap_key_iaddr(bb,i,cur)
+#else
+#define XFS_BMAP_KEY_IADDR(bb,i,cur) \
+	XFS_BTREE_KEY_ADDR(XFS_BMAP_BLOCK_ISIZE(		\
+		INT_GET((bb)->bb_level, ARCH_CONVERT), cur),	\
+		xfs_bmbt, bb, i, XFS_BMAP_BLOCK_IMAXRECS(	\
+			INT_GET((bb)->bb_level, ARCH_CONVERT), cur))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_PTR_DADDR)
+xfs_bmbt_ptr_t *
+xfs_bmap_ptr_daddr(xfs_bmbt_block_t *bb, int i, struct xfs_btree_cur *cur);
+#define XFS_BMAP_PTR_DADDR(bb,i,cur)		xfs_bmap_ptr_daddr(bb,i,cur)
+#else
+#define XFS_BMAP_PTR_DADDR(bb,i,cur) \
+	XFS_BTREE_PTR_ADDR(XFS_BMAP_BLOCK_DSIZE(		\
+		INT_GET((bb)->bb_level, ARCH_CONVERT), cur),	\
+		xfs_bmbt, bb, i, XFS_BMAP_BLOCK_DMAXRECS(	\
+			INT_GET((bb)->bb_level, ARCH_CONVERT), cur))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_PTR_IADDR)
+xfs_bmbt_ptr_t *
+xfs_bmap_ptr_iaddr(xfs_bmbt_block_t *bb, int i, struct xfs_btree_cur *cur);
+#define XFS_BMAP_PTR_IADDR(bb,i,cur)		xfs_bmap_ptr_iaddr(bb,i,cur)
+#else
+#define XFS_BMAP_PTR_IADDR(bb,i,cur) \
+	XFS_BTREE_PTR_ADDR(XFS_BMAP_BLOCK_ISIZE(		\
+		INT_GET((bb)->bb_level, ARCH_CONVERT), cur),	\
+		xfs_bmbt, bb, i, XFS_BMAP_BLOCK_IMAXRECS(	\
+			INT_GET((bb)->bb_level, ARCH_CONVERT), cur))
+#endif
+
+/*
+ * These are to be used when we know the size of the block and
+ * we don't have a cursor.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_BROOT_REC_ADDR)
+xfs_bmbt_rec_t *xfs_bmap_broot_rec_addr(xfs_bmbt_block_t *bb, int i, int sz);
+#define XFS_BMAP_BROOT_REC_ADDR(bb,i,sz)	xfs_bmap_broot_rec_addr(bb,i,sz)
+#else
+#define XFS_BMAP_BROOT_REC_ADDR(bb,i,sz) \
+	XFS_BTREE_REC_ADDR(sz,xfs_bmbt,bb,i,XFS_BMAP_BROOT_MAXRECS(sz))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_BROOT_KEY_ADDR)
+xfs_bmbt_key_t *xfs_bmap_broot_key_addr(xfs_bmbt_block_t *bb, int i, int sz);
+#define XFS_BMAP_BROOT_KEY_ADDR(bb,i,sz)	xfs_bmap_broot_key_addr(bb,i,sz)
+#else
+#define XFS_BMAP_BROOT_KEY_ADDR(bb,i,sz) \
+	XFS_BTREE_KEY_ADDR(sz,xfs_bmbt,bb,i,XFS_BMAP_BROOT_MAXRECS(sz))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_BROOT_PTR_ADDR)
+xfs_bmbt_ptr_t *xfs_bmap_broot_ptr_addr(xfs_bmbt_block_t *bb, int i, int sz);
+#define XFS_BMAP_BROOT_PTR_ADDR(bb,i,sz)	xfs_bmap_broot_ptr_addr(bb,i,sz)
+#else
+#define XFS_BMAP_BROOT_PTR_ADDR(bb,i,sz) \
+	XFS_BTREE_PTR_ADDR(sz,xfs_bmbt,bb,i,XFS_BMAP_BROOT_MAXRECS(sz))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_BROOT_NUMRECS)
+int xfs_bmap_broot_numrecs(xfs_bmdr_block_t *bb);
+#define XFS_BMAP_BROOT_NUMRECS(bb)		xfs_bmap_broot_numrecs(bb)
+#else
+#define XFS_BMAP_BROOT_NUMRECS(bb) (INT_GET((bb)->bb_numrecs, ARCH_CONVERT))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_BROOT_MAXRECS)
+int xfs_bmap_broot_maxrecs(int sz);
+#define XFS_BMAP_BROOT_MAXRECS(sz)		xfs_bmap_broot_maxrecs(sz)
+#else
+#define XFS_BMAP_BROOT_MAXRECS(sz) XFS_BTREE_BLOCK_MAXRECS(sz,xfs_bmbt,0)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_BROOT_SPACE_CALC)
+int xfs_bmap_broot_space_calc(int nrecs);
+#define XFS_BMAP_BROOT_SPACE_CALC(nrecs)	xfs_bmap_broot_space_calc(nrecs)
+#else
+#define XFS_BMAP_BROOT_SPACE_CALC(nrecs) \
+	((int)(sizeof(xfs_bmbt_block_t) + \
+	       ((nrecs) * (sizeof(xfs_bmbt_key_t) + sizeof(xfs_bmbt_ptr_t)))))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_BROOT_SPACE)
+int xfs_bmap_broot_space(xfs_bmdr_block_t *bb);
+#define XFS_BMAP_BROOT_SPACE(bb)		xfs_bmap_broot_space(bb)
+#else
+#define XFS_BMAP_BROOT_SPACE(bb) \
+	XFS_BMAP_BROOT_SPACE_CALC(INT_GET((bb)->bb_numrecs, ARCH_CONVERT))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMDR_SPACE_CALC)
+int xfs_bmdr_space_calc(int nrecs);
+#define XFS_BMDR_SPACE_CALC(nrecs)		xfs_bmdr_space_calc(nrecs)
+#else
+#define XFS_BMDR_SPACE_CALC(nrecs)	\
+	((int)(sizeof(xfs_bmdr_block_t) + \
+	       ((nrecs) * (sizeof(xfs_bmbt_key_t) + sizeof(xfs_bmbt_ptr_t)))))
+#endif
+
+/*
+ * Maximum number of bmap btree levels.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BM_MAXLEVELS)
+int xfs_bm_maxlevels(struct xfs_mount *mp, int w);
+#define XFS_BM_MAXLEVELS(mp,w)			xfs_bm_maxlevels(mp,w)
+#else
+#define XFS_BM_MAXLEVELS(mp,w)		((mp)->m_bm_maxlevels[w])
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_SANITY_CHECK)
+int xfs_bmap_sanity_check(struct xfs_mount *mp, xfs_bmbt_block_t *bb,
+	int level);
+#define XFS_BMAP_SANITY_CHECK(mp,bb,level)	\
+	xfs_bmap_sanity_check(mp,bb,level)
+#else
+#define XFS_BMAP_SANITY_CHECK(mp,bb,level)	\
+	(INT_GET((bb)->bb_magic, ARCH_CONVERT) == XFS_BMAP_MAGIC && \
+	 INT_GET((bb)->bb_level, ARCH_CONVERT) == level && \
+	 INT_GET((bb)->bb_numrecs, ARCH_CONVERT) > 0 && \
+	 INT_GET((bb)->bb_numrecs, ARCH_CONVERT) <= (mp)->m_bmap_dmxr[(level) != 0])
+#endif
+
+
+#ifdef __KERNEL__
+
+#if defined(XFS_BMBT_TRACE)
+/*
+ * Trace buffer entry types.
+ */
+#define XFS_BMBT_KTRACE_ARGBI	1
+#define XFS_BMBT_KTRACE_ARGBII	2
+#define XFS_BMBT_KTRACE_ARGFFFI 3
+#define XFS_BMBT_KTRACE_ARGI	4
+#define XFS_BMBT_KTRACE_ARGIFK	5
+#define XFS_BMBT_KTRACE_ARGIFR	6
+#define XFS_BMBT_KTRACE_ARGIK	7
+#define XFS_BMBT_KTRACE_CUR	8
+
+#define XFS_BMBT_TRACE_SIZE	4096	/* size of global trace buffer */
+#define XFS_BMBT_KTRACE_SIZE	32	/* size of per-inode trace buffer */
+extern ktrace_t	*xfs_bmbt_trace_buf;
+#endif
+
+/*
+ * Prototypes for xfs_bmap.c to call.
+ */
+
+void
+xfs_bmdr_to_bmbt(
+	xfs_bmdr_block_t *,
+	int,
+	xfs_bmbt_block_t *,
+	int);
+
+int
+xfs_bmbt_decrement(
+	struct xfs_btree_cur *,
+	int,
+	int *);
+
+int
+xfs_bmbt_delete(
+	struct xfs_btree_cur *,
+	int *);
+
+void
+xfs_bmbt_get_all(
+	xfs_bmbt_rec_t	*r,
+	xfs_bmbt_irec_t *s);
+
+xfs_bmbt_block_t *
+xfs_bmbt_get_block(
+	struct xfs_btree_cur	*cur,
+	int			level,
+	struct xfs_buf		**bpp);
+
+xfs_filblks_t
+xfs_bmbt_get_blockcount(
+	xfs_bmbt_rec_t	*r);
+
+xfs_fsblock_t
+xfs_bmbt_get_startblock(
+	xfs_bmbt_rec_t	*r);
+
+xfs_fileoff_t
+xfs_bmbt_get_startoff(
+	xfs_bmbt_rec_t	*r);
+
+xfs_exntst_t
+xfs_bmbt_get_state(
+	xfs_bmbt_rec_t	*r);
+
+#if ARCH_CONVERT != ARCH_NOCONVERT
+void
+xfs_bmbt_disk_get_all(
+	xfs_bmbt_rec_t	*r,
+	xfs_bmbt_irec_t *s);
+
+xfs_exntst_t
+xfs_bmbt_disk_get_state(
+	xfs_bmbt_rec_t	*r);
+
+xfs_filblks_t
+xfs_bmbt_disk_get_blockcount(
+	xfs_bmbt_rec_t	*r);
+
+xfs_fsblock_t
+xfs_bmbt_disk_get_startblock(
+	xfs_bmbt_rec_t	*r);
+
+xfs_fileoff_t
+xfs_bmbt_disk_get_startoff(
+	xfs_bmbt_rec_t	*r);
+
+#else
+#define xfs_bmbt_disk_get_all(r, s) \
+	xfs_bmbt_get_all(r, s)
+#define xfs_bmbt_disk_get_state(r) \
+	xfs_bmbt_get_state(r)
+#define xfs_bmbt_disk_get_blockcount(r) \
+	xfs_bmbt_get_blockcount(r)
+#define xfs_bmbt_disk_get_startblock(r) \
+	xfs_bmbt_get_blockcount(r)
+#define xfs_bmbt_disk_get_startoff(r) \
+	xfs_bmbt_get_startoff(r)
+#endif
+
+int
+xfs_bmbt_increment(
+	struct xfs_btree_cur *,
+	int,
+	int *);
+
+int
+xfs_bmbt_insert(
+	struct xfs_btree_cur *,
+	int *);
+
+void
+xfs_bmbt_log_block(
+	struct xfs_btree_cur *,
+	struct xfs_buf *,
+	int);
+
+void
+xfs_bmbt_log_recs(
+	struct xfs_btree_cur *,
+	struct xfs_buf *,
+	int,
+	int);
+
+int
+xfs_bmbt_lookup_eq(
+	struct xfs_btree_cur *,
+	xfs_fileoff_t,
+	xfs_fsblock_t,
+	xfs_filblks_t,
+	int *);
+
+int
+xfs_bmbt_lookup_ge(
+	struct xfs_btree_cur *,
+	xfs_fileoff_t,
+	xfs_fsblock_t,
+	xfs_filblks_t,
+	int *);
+
+int
+xfs_bmbt_lookup_le(
+	struct xfs_btree_cur *,
+	xfs_fileoff_t,
+	xfs_fsblock_t,
+	xfs_filblks_t,
+	int *);
+
+/*
+ * Give the bmap btree a new root block.  Copy the old broot contents
+ * down into a real block and make the broot point to it.
+ */
+int						/* error */
+xfs_bmbt_newroot(
+	struct xfs_btree_cur	*cur,		/* btree cursor */
+	int			*logflags,	/* logging flags for inode */
+	int			*stat);		/* return status - 0 fail */
+
+void
+xfs_bmbt_set_all(
+	xfs_bmbt_rec_t	*r,
+	xfs_bmbt_irec_t *s);
+
+void
+xfs_bmbt_set_allf(
+	xfs_bmbt_rec_t	*r,
+	xfs_fileoff_t	o,
+	xfs_fsblock_t	b,
+	xfs_filblks_t	c,
+	xfs_exntst_t	v);
+
+void
+xfs_bmbt_set_blockcount(
+	xfs_bmbt_rec_t	*r,
+	xfs_filblks_t	v);
+
+void
+xfs_bmbt_set_startblock(
+	xfs_bmbt_rec_t	*r,
+	xfs_fsblock_t	v);
+
+void
+xfs_bmbt_set_startoff(
+	xfs_bmbt_rec_t	*r,
+	xfs_fileoff_t	v);
+
+void
+xfs_bmbt_set_state(
+	xfs_bmbt_rec_t	*r,
+	xfs_exntst_t	v);
+
+#if ARCH_CONVERT != ARCH_NOCONVERT
+void
+xfs_bmbt_disk_set_all(
+	xfs_bmbt_rec_t	*r,
+	xfs_bmbt_irec_t *s);
+
+void
+xfs_bmbt_disk_set_allf(
+	xfs_bmbt_rec_t	*r,
+	xfs_fileoff_t	o,
+	xfs_fsblock_t	b,
+	xfs_filblks_t	c,
+	xfs_exntst_t	v);
+#else
+#define xfs_bmbt_disk_set_all(r, s) \
+	xfs_bmbt_set_all(r, s)
+#define xfs_bmbt_disk_set_allf(r, o, b, c, v) \
+	xfs_bmbt_set_allf(r, o, b, c, v)
+#endif
+
+void
+xfs_bmbt_to_bmdr(
+	xfs_bmbt_block_t *,
+	int,
+	xfs_bmdr_block_t *,
+	int);
+
+int
+xfs_bmbt_update(
+	struct xfs_btree_cur *,
+	xfs_fileoff_t,
+	xfs_fsblock_t,
+	xfs_filblks_t,
+	xfs_exntst_t);
+
+#ifdef DEBUG
+/*
+ * Get the data from the pointed-to record.
+ */
+int
+xfs_bmbt_get_rec(
+	struct xfs_btree_cur *,
+	xfs_fileoff_t *,
+	xfs_fsblock_t *,
+	xfs_filblks_t *,
+	xfs_exntst_t *,
+	int *);
+#endif
+
+
+/*
+ * Search an extent list for the extent which includes block
+ * bno.
+ */
+xfs_bmbt_rec_t *
+xfs_bmap_do_search_extents(
+	xfs_bmbt_rec_t *,
+	xfs_extnum_t,
+	xfs_extnum_t,
+	xfs_fileoff_t,
+	int *,
+	xfs_extnum_t *,
+	xfs_bmbt_irec_t *,
+	xfs_bmbt_irec_t *);
+
+#endif	/* __KERNEL__ */
+
+#endif	/* __XFS_BMAP_BTREE_H__ */
diff --git a/fs/xfs/xfs_btree.c b/fs/xfs/xfs_btree.c
new file mode 100644
index 00000000000000..099e26aae2a1f3
--- /dev/null
+++ b/fs/xfs/xfs_btree.c
@@ -0,0 +1,949 @@
+/*
+ * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+/*
+ * This file contains common code for the space manager's btree implementations.
+ */
+
+#include "xfs.h"
+
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_bit.h"
+#include "xfs_error.h"
+
+/*
+ * Cursor allocation zone.
+ */
+kmem_zone_t	*xfs_btree_cur_zone;
+
+/*
+ * Btree magic numbers.
+ */
+const __uint32_t xfs_magics[XFS_BTNUM_MAX] =
+{
+	XFS_ABTB_MAGIC, XFS_ABTC_MAGIC, XFS_BMAP_MAGIC, XFS_IBT_MAGIC
+};
+
+/*
+ * Prototypes for internal routines.
+ */
+
+/*
+ * Checking routine: return maxrecs for the block.
+ */
+STATIC int				/* number of records fitting in block */
+xfs_btree_maxrecs(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	xfs_btree_block_t	*block);/* generic btree block pointer */
+
+/*
+ * Internal routines.
+ */
+
+/*
+ * Checking routine: return maxrecs for the block.
+ */
+STATIC int				/* number of records fitting in block */
+xfs_btree_maxrecs(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	xfs_btree_block_t	*block)	/* generic btree block pointer */
+{
+	switch (cur->bc_btnum) {
+	case XFS_BTNUM_BNO:
+	case XFS_BTNUM_CNT:
+		return (int)XFS_ALLOC_BLOCK_MAXRECS(INT_GET(block->bb_h.bb_level, ARCH_CONVERT), cur);
+	case XFS_BTNUM_BMAP:
+		return (int)XFS_BMAP_BLOCK_IMAXRECS(INT_GET(block->bb_h.bb_level, ARCH_CONVERT), cur);
+	case XFS_BTNUM_INO:
+		return (int)XFS_INOBT_BLOCK_MAXRECS(INT_GET(block->bb_h.bb_level, ARCH_CONVERT), cur);
+	default:
+		ASSERT(0);
+		return 0;
+	}
+}
+
+/*
+ * External routines.
+ */
+
+#ifdef DEBUG
+/*
+ * Debug routine: check that block header is ok.
+ */
+void
+xfs_btree_check_block(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	xfs_btree_block_t	*block,	/* generic btree block pointer */
+	int			level,	/* level of the btree block */
+	xfs_buf_t		*bp)	/* buffer containing block, if any */
+{
+	if (XFS_BTREE_LONG_PTRS(cur->bc_btnum))
+		xfs_btree_check_lblock(cur, (xfs_btree_lblock_t *)block, level,
+			bp);
+	else
+		xfs_btree_check_sblock(cur, (xfs_btree_sblock_t *)block, level,
+			bp);
+}
+
+/*
+ * Debug routine: check that keys are in the right order.
+ */
+void
+xfs_btree_check_key(
+	xfs_btnum_t	btnum,		/* btree identifier */
+	void		*ak1,		/* pointer to left (lower) key */
+	void		*ak2)		/* pointer to right (higher) key */
+{
+	switch (btnum) {
+	case XFS_BTNUM_BNO: {
+		xfs_alloc_key_t	*k1;
+		xfs_alloc_key_t	*k2;
+
+		k1 = ak1;
+		k2 = ak2;
+		ASSERT(INT_GET(k1->ar_startblock, ARCH_CONVERT) < INT_GET(k2->ar_startblock, ARCH_CONVERT));
+		break;
+	    }
+	case XFS_BTNUM_CNT: {
+		xfs_alloc_key_t	*k1;
+		xfs_alloc_key_t	*k2;
+
+		k1 = ak1;
+		k2 = ak2;
+		ASSERT(INT_GET(k1->ar_blockcount, ARCH_CONVERT) < INT_GET(k2->ar_blockcount, ARCH_CONVERT) ||
+		       (INT_GET(k1->ar_blockcount, ARCH_CONVERT) == INT_GET(k2->ar_blockcount, ARCH_CONVERT) &&
+			INT_GET(k1->ar_startblock, ARCH_CONVERT) < INT_GET(k2->ar_startblock, ARCH_CONVERT)));
+		break;
+	    }
+	case XFS_BTNUM_BMAP: {
+		xfs_bmbt_key_t	*k1;
+		xfs_bmbt_key_t	*k2;
+
+		k1 = ak1;
+		k2 = ak2;
+		ASSERT(INT_GET(k1->br_startoff, ARCH_CONVERT) < INT_GET(k2->br_startoff, ARCH_CONVERT));
+		break;
+	    }
+	case XFS_BTNUM_INO: {
+		xfs_inobt_key_t	*k1;
+		xfs_inobt_key_t	*k2;
+
+		k1 = ak1;
+		k2 = ak2;
+		ASSERT(INT_GET(k1->ir_startino, ARCH_CONVERT) < INT_GET(k2->ir_startino, ARCH_CONVERT));
+		break;
+	    }
+	default:
+		ASSERT(0);
+	}
+}
+#endif	/* DEBUG */
+
+/*
+ * Checking routine: check that long form block header is ok.
+ */
+/* ARGSUSED */
+int					/* error (0 or EFSCORRUPTED) */
+xfs_btree_check_lblock(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	xfs_btree_lblock_t	*block,	/* btree long form block pointer */
+	int			level,	/* level of the btree block */
+	xfs_buf_t		*bp)	/* buffer for block, if any */
+{
+	int			lblock_ok; /* block passes checks */
+	xfs_mount_t		*mp;	/* file system mount point */
+
+	mp = cur->bc_mp;
+	lblock_ok =
+		INT_GET(block->bb_magic, ARCH_CONVERT) == xfs_magics[cur->bc_btnum] &&
+		INT_GET(block->bb_level, ARCH_CONVERT) == level &&
+		INT_GET(block->bb_numrecs, ARCH_CONVERT) <=
+			xfs_btree_maxrecs(cur, (xfs_btree_block_t *)block) &&
+		!INT_ISZERO(block->bb_leftsib, ARCH_CONVERT) &&
+		(INT_GET(block->bb_leftsib, ARCH_CONVERT) == NULLDFSBNO ||
+		 XFS_FSB_SANITY_CHECK(mp, INT_GET(block->bb_leftsib, ARCH_CONVERT))) &&
+		!INT_ISZERO(block->bb_rightsib, ARCH_CONVERT) &&
+		(INT_GET(block->bb_rightsib, ARCH_CONVERT) == NULLDFSBNO ||
+		 XFS_FSB_SANITY_CHECK(mp, INT_GET(block->bb_rightsib, ARCH_CONVERT)));
+	if (unlikely(XFS_TEST_ERROR(!lblock_ok, mp, XFS_ERRTAG_BTREE_CHECK_LBLOCK,
+			XFS_RANDOM_BTREE_CHECK_LBLOCK))) {
+		if (bp)
+			xfs_buftrace("LBTREE ERROR", bp);
+		XFS_ERROR_REPORT("xfs_btree_check_lblock", XFS_ERRLEVEL_LOW,
+				 mp);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+	return 0;
+}
+
+/*
+ * Checking routine: check that (long) pointer is ok.
+ */
+int					/* error (0 or EFSCORRUPTED) */
+xfs_btree_check_lptr(
+	xfs_btree_cur_t	*cur,		/* btree cursor */
+	xfs_dfsbno_t	ptr,		/* btree block disk address */
+	int		level)		/* btree block level */
+{
+	xfs_mount_t	*mp;		/* file system mount point */
+
+	mp = cur->bc_mp;
+	XFS_WANT_CORRUPTED_RETURN(
+		level > 0 &&
+		ptr != NULLDFSBNO &&
+		XFS_FSB_SANITY_CHECK(mp, ptr));
+	return 0;
+}
+
+#ifdef DEBUG
+/*
+ * Debug routine: check that records are in the right order.
+ */
+void
+xfs_btree_check_rec(
+	xfs_btnum_t	btnum,		/* btree identifier */
+	void		*ar1,		/* pointer to left (lower) record */
+	void		*ar2)		/* pointer to right (higher) record */
+{
+	switch (btnum) {
+	case XFS_BTNUM_BNO: {
+		xfs_alloc_rec_t	*r1;
+		xfs_alloc_rec_t	*r2;
+
+		r1 = ar1;
+		r2 = ar2;
+		ASSERT(INT_GET(r1->ar_startblock, ARCH_CONVERT) + INT_GET(r1->ar_blockcount, ARCH_CONVERT) <=
+		       INT_GET(r2->ar_startblock, ARCH_CONVERT));
+		break;
+	    }
+	case XFS_BTNUM_CNT: {
+		xfs_alloc_rec_t	*r1;
+		xfs_alloc_rec_t	*r2;
+
+		r1 = ar1;
+		r2 = ar2;
+		ASSERT(INT_GET(r1->ar_blockcount, ARCH_CONVERT) < INT_GET(r2->ar_blockcount, ARCH_CONVERT) ||
+		       (INT_GET(r1->ar_blockcount, ARCH_CONVERT) == INT_GET(r2->ar_blockcount, ARCH_CONVERT) &&
+			INT_GET(r1->ar_startblock, ARCH_CONVERT) < INT_GET(r2->ar_startblock, ARCH_CONVERT)));
+		break;
+	    }
+	case XFS_BTNUM_BMAP: {
+		xfs_bmbt_rec_t	*r1;
+		xfs_bmbt_rec_t	*r2;
+
+		r1 = ar1;
+		r2 = ar2;
+		ASSERT(xfs_bmbt_disk_get_startoff(r1) +
+		       xfs_bmbt_disk_get_blockcount(r1) <=
+		       xfs_bmbt_disk_get_startoff(r2));
+		break;
+	    }
+	case XFS_BTNUM_INO: {
+		xfs_inobt_rec_t	*r1;
+		xfs_inobt_rec_t	*r2;
+
+		r1 = ar1;
+		r2 = ar2;
+		ASSERT(INT_GET(r1->ir_startino, ARCH_CONVERT) + XFS_INODES_PER_CHUNK <=
+		       INT_GET(r2->ir_startino, ARCH_CONVERT));
+		break;
+	    }
+	default:
+		ASSERT(0);
+	}
+}
+#endif	/* DEBUG */
+
+/*
+ * Checking routine: check that block header is ok.
+ */
+/* ARGSUSED */
+int					/* error (0 or EFSCORRUPTED) */
+xfs_btree_check_sblock(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	xfs_btree_sblock_t	*block,	/* btree short form block pointer */
+	int			level,	/* level of the btree block */
+	xfs_buf_t		*bp)	/* buffer containing block */
+{
+	xfs_buf_t		*agbp;	/* buffer for ag. freespace struct */
+	xfs_agf_t		*agf;	/* ag. freespace structure */
+	xfs_agblock_t		agflen;	/* native ag. freespace length */
+	int			sblock_ok; /* block passes checks */
+
+	agbp = cur->bc_private.a.agbp;
+	agf = XFS_BUF_TO_AGF(agbp);
+	agflen = INT_GET(agf->agf_length, ARCH_CONVERT);
+	sblock_ok =
+		INT_GET(block->bb_magic, ARCH_CONVERT) == xfs_magics[cur->bc_btnum] &&
+		INT_GET(block->bb_level, ARCH_CONVERT) == level &&
+		INT_GET(block->bb_numrecs, ARCH_CONVERT) <=
+			xfs_btree_maxrecs(cur, (xfs_btree_block_t *)block) &&
+		(INT_GET(block->bb_leftsib, ARCH_CONVERT) == NULLAGBLOCK ||
+		 INT_GET(block->bb_leftsib, ARCH_CONVERT) < agflen) &&
+		!INT_ISZERO(block->bb_leftsib, ARCH_CONVERT) &&
+		(INT_GET(block->bb_rightsib, ARCH_CONVERT) == NULLAGBLOCK ||
+		 INT_GET(block->bb_rightsib, ARCH_CONVERT) < agflen) &&
+		!INT_ISZERO(block->bb_rightsib, ARCH_CONVERT);
+	if (unlikely(XFS_TEST_ERROR(!sblock_ok, cur->bc_mp,
+			XFS_ERRTAG_BTREE_CHECK_SBLOCK,
+			XFS_RANDOM_BTREE_CHECK_SBLOCK))) {
+		if (bp)
+			xfs_buftrace("SBTREE ERROR", bp);
+		XFS_ERROR_REPORT("xfs_btree_check_sblock", XFS_ERRLEVEL_LOW,
+				 cur->bc_mp);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+	return 0;
+}
+
+/*
+ * Checking routine: check that (short) pointer is ok.
+ */
+int					/* error (0 or EFSCORRUPTED) */
+xfs_btree_check_sptr(
+	xfs_btree_cur_t	*cur,		/* btree cursor */
+	xfs_agblock_t	ptr,		/* btree block disk address */
+	int		level)		/* btree block level */
+{
+	xfs_buf_t	*agbp;		/* buffer for ag. freespace struct */
+	xfs_agf_t	*agf;		/* ag. freespace structure */
+
+	agbp = cur->bc_private.a.agbp;
+	agf = XFS_BUF_TO_AGF(agbp);
+	XFS_WANT_CORRUPTED_RETURN(
+		level > 0 &&
+		ptr != NULLAGBLOCK && ptr != 0 &&
+		ptr < INT_GET(agf->agf_length, ARCH_CONVERT));
+	return 0;
+}
+
+/*
+ * Delete the btree cursor.
+ */
+void
+xfs_btree_del_cursor(
+	xfs_btree_cur_t	*cur,		/* btree cursor */
+	int		error)		/* del because of error */
+{
+	int		i;		/* btree level */
+
+	/*
+	 * Clear the buffer pointers, and release the buffers.
+	 * If we're doing this in the face of an error, we
+	 * need to make sure to inspect all of the entries
+	 * in the bc_bufs array for buffers to be unlocked.
+	 * This is because some of the btree code works from
+	 * level n down to 0, and if we get an error along
+	 * the way we won't have initialized all the entries
+	 * down to 0.
+	 */
+	for (i = 0; i < cur->bc_nlevels; i++) {
+		if (cur->bc_bufs[i])
+			xfs_btree_setbuf(cur, i, NULL);
+		else if (!error)
+			break;
+	}
+	/*
+	 * Can't free a bmap cursor without having dealt with the
+	 * allocated indirect blocks' accounting.
+	 */
+	ASSERT(cur->bc_btnum != XFS_BTNUM_BMAP ||
+	       cur->bc_private.b.allocated == 0);
+	/*
+	 * Free the cursor.
+	 */
+	kmem_zone_free(xfs_btree_cur_zone, cur);
+}
+
+/*
+ * Duplicate the btree cursor.
+ * Allocate a new one, copy the record, re-get the buffers.
+ */
+int					/* error */
+xfs_btree_dup_cursor(
+	xfs_btree_cur_t	*cur,		/* input cursor */
+	xfs_btree_cur_t	**ncur)		/* output cursor */
+{
+	xfs_buf_t	*bp;		/* btree block's buffer pointer */
+	int		error;		/* error return value */
+	int		i;		/* level number of btree block */
+	xfs_mount_t	*mp;		/* mount structure for filesystem */
+	xfs_btree_cur_t	*new;		/* new cursor value */
+	xfs_trans_t	*tp;		/* transaction pointer, can be NULL */
+
+	tp = cur->bc_tp;
+	mp = cur->bc_mp;
+	/*
+	 * Allocate a new cursor like the old one.
+	 */
+	new = xfs_btree_init_cursor(mp, tp, cur->bc_private.a.agbp,
+		cur->bc_private.a.agno, cur->bc_btnum, cur->bc_private.b.ip,
+		cur->bc_private.b.whichfork);
+	/*
+	 * Copy the record currently in the cursor.
+	 */
+	new->bc_rec = cur->bc_rec;
+	/*
+	 * For each level current, re-get the buffer and copy the ptr value.
+	 */
+	for (i = 0; i < new->bc_nlevels; i++) {
+		new->bc_ptrs[i] = cur->bc_ptrs[i];
+		new->bc_ra[i] = cur->bc_ra[i];
+		if ((bp = cur->bc_bufs[i])) {
+			if ((error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp,
+				XFS_BUF_ADDR(bp), mp->m_bsize, 0, &bp))) {
+				xfs_btree_del_cursor(new, error);
+				*ncur = NULL;
+				return error;
+			}
+			new->bc_bufs[i] = bp;
+			ASSERT(bp);
+			ASSERT(!XFS_BUF_GETERROR(bp));
+		} else
+			new->bc_bufs[i] = NULL;
+	}
+	/*
+	 * For bmap btrees, copy the firstblock, flist, and flags values,
+	 * since init cursor doesn't get them.
+	 */
+	if (new->bc_btnum == XFS_BTNUM_BMAP) {
+		new->bc_private.b.firstblock = cur->bc_private.b.firstblock;
+		new->bc_private.b.flist = cur->bc_private.b.flist;
+		new->bc_private.b.flags = cur->bc_private.b.flags;
+	}
+	*ncur = new;
+	return 0;
+}
+
+/*
+ * Change the cursor to point to the first record at the given level.
+ * Other levels are unaffected.
+ */
+int					/* success=1, failure=0 */
+xfs_btree_firstrec(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			level)	/* level to change */
+{
+	xfs_btree_block_t	*block;	/* generic btree block pointer */
+	xfs_buf_t		*bp;	/* buffer containing block */
+
+	/*
+	 * Get the block pointer for this level.
+	 */
+	block = xfs_btree_get_block(cur, level, &bp);
+	xfs_btree_check_block(cur, block, level, bp);
+	/*
+	 * It's empty, there is no such record.
+	 */
+	if (INT_ISZERO(block->bb_h.bb_numrecs, ARCH_CONVERT))
+		return 0;
+	/*
+	 * Set the ptr value to 1, that's the first record/key.
+	 */
+	cur->bc_ptrs[level] = 1;
+	return 1;
+}
+
+/*
+ * Retrieve the block pointer from the cursor at the given level.
+ * This may be a bmap btree root or from a buffer.
+ */
+xfs_btree_block_t *			/* generic btree block pointer */
+xfs_btree_get_block(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			level,	/* level in btree */
+	xfs_buf_t		**bpp)	/* buffer containing the block */
+{
+	xfs_btree_block_t	*block;	/* return value */
+	xfs_buf_t		*bp;	/* return buffer */
+	xfs_ifork_t		*ifp;	/* inode fork pointer */
+	int			whichfork; /* data or attr fork */
+
+	if (cur->bc_btnum == XFS_BTNUM_BMAP && level == cur->bc_nlevels - 1) {
+		whichfork = cur->bc_private.b.whichfork;
+		ifp = XFS_IFORK_PTR(cur->bc_private.b.ip, whichfork);
+		block = (xfs_btree_block_t *)ifp->if_broot;
+		bp = NULL;
+	} else {
+		bp = cur->bc_bufs[level];
+		block = XFS_BUF_TO_BLOCK(bp);
+	}
+	ASSERT(block != NULL);
+	*bpp = bp;
+	return block;
+}
+
+/*
+ * Get a buffer for the block, return it with no data read.
+ * Long-form addressing.
+ */
+xfs_buf_t *				/* buffer for fsbno */
+xfs_btree_get_bufl(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_fsblock_t	fsbno,		/* file system block number */
+	uint		lock)		/* lock flags for get_buf */
+{
+	xfs_buf_t	*bp;		/* buffer pointer (return value) */
+	xfs_daddr_t		d;		/* real disk block address */
+
+	ASSERT(fsbno != NULLFSBLOCK);
+	d = XFS_FSB_TO_DADDR(mp, fsbno);
+	bp = xfs_trans_get_buf(tp, mp->m_ddev_targp, d, mp->m_bsize, lock);
+	ASSERT(bp);
+	ASSERT(!XFS_BUF_GETERROR(bp));
+	return bp;
+}
+
+/*
+ * Get a buffer for the block, return it with no data read.
+ * Short-form addressing.
+ */
+xfs_buf_t *				/* buffer for agno/agbno */
+xfs_btree_get_bufs(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_agnumber_t	agno,		/* allocation group number */
+	xfs_agblock_t	agbno,		/* allocation group block number */
+	uint		lock)		/* lock flags for get_buf */
+{
+	xfs_buf_t	*bp;		/* buffer pointer (return value) */
+	xfs_daddr_t		d;		/* real disk block address */
+
+	ASSERT(agno != NULLAGNUMBER);
+	ASSERT(agbno != NULLAGBLOCK);
+	d = XFS_AGB_TO_DADDR(mp, agno, agbno);
+	bp = xfs_trans_get_buf(tp, mp->m_ddev_targp, d, mp->m_bsize, lock);
+	ASSERT(bp);
+	ASSERT(!XFS_BUF_GETERROR(bp));
+	return bp;
+}
+
+/*
+ * Allocate a new btree cursor.
+ * The cursor is either for allocation (A) or bmap (B) or inodes (I).
+ */
+xfs_btree_cur_t *			/* new btree cursor */
+xfs_btree_init_cursor(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_buf_t	*agbp,		/* (A only) buffer for agf structure */
+					/* (I only) buffer for agi structure */
+	xfs_agnumber_t	agno,		/* (AI only) allocation group number */
+	xfs_btnum_t	btnum,		/* btree identifier */
+	xfs_inode_t	*ip,		/* (B only) inode owning the btree */
+	int		whichfork)	/* (B only) data or attr fork */
+{
+	xfs_agf_t	*agf;		/* (A) allocation group freespace */
+	xfs_agi_t	*agi;		/* (I) allocation group inodespace */
+	xfs_btree_cur_t	*cur;		/* return value */
+	xfs_ifork_t	*ifp;		/* (I) inode fork pointer */
+	int		nlevels=0;	/* number of levels in the btree */
+
+	ASSERT(xfs_btree_cur_zone != NULL);
+	/*
+	 * Allocate a new cursor.
+	 */
+	cur = kmem_zone_zalloc(xfs_btree_cur_zone, KM_SLEEP);
+	/*
+	 * Deduce the number of btree levels from the arguments.
+	 */
+	switch (btnum) {
+	case XFS_BTNUM_BNO:
+	case XFS_BTNUM_CNT:
+		agf = XFS_BUF_TO_AGF(agbp);
+		nlevels = INT_GET(agf->agf_levels[btnum], ARCH_CONVERT);
+		break;
+	case XFS_BTNUM_BMAP:
+		ifp = XFS_IFORK_PTR(ip, whichfork);
+		nlevels = INT_GET(ifp->if_broot->bb_level, ARCH_CONVERT) + 1;
+		break;
+	case XFS_BTNUM_INO:
+		agi = XFS_BUF_TO_AGI(agbp);
+		nlevels = INT_GET(agi->agi_level, ARCH_CONVERT);
+		break;
+	default:
+		ASSERT(0);
+	}
+	/*
+	 * Fill in the common fields.
+	 */
+	cur->bc_tp = tp;
+	cur->bc_mp = mp;
+	cur->bc_nlevels = nlevels;
+	cur->bc_btnum = btnum;
+	cur->bc_blocklog = mp->m_sb.sb_blocklog;
+	/*
+	 * Fill in private fields.
+	 */
+	switch (btnum) {
+	case XFS_BTNUM_BNO:
+	case XFS_BTNUM_CNT:
+		/*
+		 * Allocation btree fields.
+		 */
+		cur->bc_private.a.agbp = agbp;
+		cur->bc_private.a.agno = agno;
+		break;
+	case XFS_BTNUM_BMAP:
+		/*
+		 * Bmap btree fields.
+		 */
+		cur->bc_private.b.forksize = XFS_IFORK_SIZE(ip, whichfork);
+		cur->bc_private.b.ip = ip;
+		cur->bc_private.b.firstblock = NULLFSBLOCK;
+		cur->bc_private.b.flist = NULL;
+		cur->bc_private.b.allocated = 0;
+		cur->bc_private.b.flags = 0;
+		cur->bc_private.b.whichfork = whichfork;
+		break;
+	case XFS_BTNUM_INO:
+		/*
+		 * Inode allocation btree fields.
+		 */
+		cur->bc_private.i.agbp = agbp;
+		cur->bc_private.i.agno = agno;
+		break;
+	default:
+		ASSERT(0);
+	}
+	return cur;
+}
+
+/*
+ * Check for the cursor referring to the last block at the given level.
+ */
+int					/* 1=is last block, 0=not last block */
+xfs_btree_islastblock(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			level)	/* level to check */
+{
+	xfs_btree_block_t	*block;	/* generic btree block pointer */
+	xfs_buf_t		*bp;	/* buffer containing block */
+
+	block = xfs_btree_get_block(cur, level, &bp);
+	xfs_btree_check_block(cur, block, level, bp);
+	if (XFS_BTREE_LONG_PTRS(cur->bc_btnum))
+		return INT_GET(block->bb_u.l.bb_rightsib, ARCH_CONVERT) == NULLDFSBNO;
+	else
+		return INT_GET(block->bb_u.s.bb_rightsib, ARCH_CONVERT) == NULLAGBLOCK;
+}
+
+/*
+ * Change the cursor to point to the last record in the current block
+ * at the given level.  Other levels are unaffected.
+ */
+int					/* success=1, failure=0 */
+xfs_btree_lastrec(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			level)	/* level to change */
+{
+	xfs_btree_block_t	*block;	/* generic btree block pointer */
+	xfs_buf_t		*bp;	/* buffer containing block */
+
+	/*
+	 * Get the block pointer for this level.
+	 */
+	block = xfs_btree_get_block(cur, level, &bp);
+	xfs_btree_check_block(cur, block, level, bp);
+	/*
+	 * It's empty, there is no such record.
+	 */
+	if (INT_ISZERO(block->bb_h.bb_numrecs, ARCH_CONVERT))
+		return 0;
+	/*
+	 * Set the ptr value to numrecs, that's the last record/key.
+	 */
+	cur->bc_ptrs[level] = INT_GET(block->bb_h.bb_numrecs, ARCH_CONVERT);
+	return 1;
+}
+
+/*
+ * Compute first and last byte offsets for the fields given.
+ * Interprets the offsets table, which contains struct field offsets.
+ */
+void
+xfs_btree_offsets(
+	__int64_t	fields,		/* bitmask of fields */
+	const short	*offsets,	/* table of field offsets */
+	int		nbits,		/* number of bits to inspect */
+	int		*first,		/* output: first byte offset */
+	int		*last)		/* output: last byte offset */
+{
+	int		i;		/* current bit number */
+	__int64_t	imask;		/* mask for current bit number */
+
+	ASSERT(fields != 0);
+	/*
+	 * Find the lowest bit, so the first byte offset.
+	 */
+	for (i = 0, imask = 1LL; ; i++, imask <<= 1) {
+		if (imask & fields) {
+			*first = offsets[i];
+			break;
+		}
+	}
+	/*
+	 * Find the highest bit, so the last byte offset.
+	 */
+	for (i = nbits - 1, imask = 1LL << i; ; i--, imask >>= 1) {
+		if (imask & fields) {
+			*last = offsets[i + 1] - 1;
+			break;
+		}
+	}
+}
+
+/*
+ * Get a buffer for the block, return it read in.
+ * Long-form addressing.
+ */
+int					/* error */
+xfs_btree_read_bufl(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_fsblock_t	fsbno,		/* file system block number */
+	uint		lock,		/* lock flags for read_buf */
+	xfs_buf_t	**bpp,		/* buffer for fsbno */
+	int		refval)		/* ref count value for buffer */
+{
+	xfs_buf_t	*bp;		/* return value */
+	xfs_daddr_t		d;		/* real disk block address */
+	int		error;
+
+	ASSERT(fsbno != NULLFSBLOCK);
+	d = XFS_FSB_TO_DADDR(mp, fsbno);
+	if ((error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp, d,
+			mp->m_bsize, lock, &bp))) {
+		return error;
+	}
+	ASSERT(!bp || !XFS_BUF_GETERROR(bp));
+	if (bp != NULL) {
+		XFS_BUF_SET_VTYPE_REF(bp, B_FS_MAP, refval);
+	}
+	*bpp = bp;
+	return 0;
+}
+
+/*
+ * Get a buffer for the block, return it read in.
+ * Short-form addressing.
+ */
+int					/* error */
+xfs_btree_read_bufs(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_agnumber_t	agno,		/* allocation group number */
+	xfs_agblock_t	agbno,		/* allocation group block number */
+	uint		lock,		/* lock flags for read_buf */
+	xfs_buf_t	**bpp,		/* buffer for agno/agbno */
+	int		refval)		/* ref count value for buffer */
+{
+	xfs_buf_t	*bp;		/* return value */
+	xfs_daddr_t	d;		/* real disk block address */
+	int		error;
+
+	ASSERT(agno != NULLAGNUMBER);
+	ASSERT(agbno != NULLAGBLOCK);
+	d = XFS_AGB_TO_DADDR(mp, agno, agbno);
+	if ((error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp, d,
+					mp->m_bsize, lock, &bp))) {
+		return error;
+	}
+	ASSERT(!bp || !XFS_BUF_GETERROR(bp));
+	if (bp != NULL) {
+		switch (refval) {
+		case XFS_ALLOC_BTREE_REF:
+			XFS_BUF_SET_VTYPE_REF(bp, B_FS_MAP, refval);
+			break;
+		case XFS_INO_BTREE_REF:
+			XFS_BUF_SET_VTYPE_REF(bp, B_FS_INOMAP, refval);
+			break;
+		}
+	}
+	*bpp = bp;
+	return 0;
+}
+
+/*
+ * Read-ahead the block, don't wait for it, don't return a buffer.
+ * Long-form addressing.
+ */
+/* ARGSUSED */
+void
+xfs_btree_reada_bufl(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_fsblock_t	fsbno,		/* file system block number */
+	xfs_extlen_t	count)		/* count of filesystem blocks */
+{
+	xfs_daddr_t		d;
+
+	ASSERT(fsbno != NULLFSBLOCK);
+	d = XFS_FSB_TO_DADDR(mp, fsbno);
+	xfs_baread(mp->m_ddev_targp, d, mp->m_bsize * count);
+}
+
+/*
+ * Read-ahead the block, don't wait for it, don't return a buffer.
+ * Short-form addressing.
+ */
+/* ARGSUSED */
+void
+xfs_btree_reada_bufs(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_agnumber_t	agno,		/* allocation group number */
+	xfs_agblock_t	agbno,		/* allocation group block number */
+	xfs_extlen_t	count)		/* count of filesystem blocks */
+{
+	xfs_daddr_t		d;
+
+	ASSERT(agno != NULLAGNUMBER);
+	ASSERT(agbno != NULLAGBLOCK);
+	d = XFS_AGB_TO_DADDR(mp, agno, agbno);
+	xfs_baread(mp->m_ddev_targp, d, mp->m_bsize * count);
+}
+
+/*
+ * Read-ahead btree blocks, at the given level.
+ * Bits in lr are set from XFS_BTCUR_{LEFT,RIGHT}RA.
+ */
+int
+xfs_btree_readahead_core(
+	xfs_btree_cur_t		*cur,		/* btree cursor */
+	int			lev,		/* level in btree */
+	int			lr)		/* left/right bits */
+{
+	xfs_alloc_block_t	*a;
+	xfs_bmbt_block_t	*b;
+	xfs_inobt_block_t	*i;
+	int			rval = 0;
+
+	ASSERT(cur->bc_bufs[lev] != NULL);
+	cur->bc_ra[lev] |= lr;
+	switch (cur->bc_btnum) {
+	case XFS_BTNUM_BNO:
+	case XFS_BTNUM_CNT:
+		a = XFS_BUF_TO_ALLOC_BLOCK(cur->bc_bufs[lev]);
+		if ((lr & XFS_BTCUR_LEFTRA) && INT_GET(a->bb_leftsib, ARCH_CONVERT) != NULLAGBLOCK) {
+			xfs_btree_reada_bufs(cur->bc_mp, cur->bc_private.a.agno,
+				INT_GET(a->bb_leftsib, ARCH_CONVERT), 1);
+			rval++;
+		}
+		if ((lr & XFS_BTCUR_RIGHTRA) && INT_GET(a->bb_rightsib, ARCH_CONVERT) != NULLAGBLOCK) {
+			xfs_btree_reada_bufs(cur->bc_mp, cur->bc_private.a.agno,
+				INT_GET(a->bb_rightsib, ARCH_CONVERT), 1);
+			rval++;
+		}
+		break;
+	case XFS_BTNUM_BMAP:
+		b = XFS_BUF_TO_BMBT_BLOCK(cur->bc_bufs[lev]);
+		if ((lr & XFS_BTCUR_LEFTRA) && INT_GET(b->bb_leftsib, ARCH_CONVERT) != NULLDFSBNO) {
+			xfs_btree_reada_bufl(cur->bc_mp, INT_GET(b->bb_leftsib, ARCH_CONVERT), 1);
+			rval++;
+		}
+		if ((lr & XFS_BTCUR_RIGHTRA) && INT_GET(b->bb_rightsib, ARCH_CONVERT) != NULLDFSBNO) {
+			xfs_btree_reada_bufl(cur->bc_mp, INT_GET(b->bb_rightsib, ARCH_CONVERT), 1);
+			rval++;
+		}
+		break;
+	case XFS_BTNUM_INO:
+		i = XFS_BUF_TO_INOBT_BLOCK(cur->bc_bufs[lev]);
+		if ((lr & XFS_BTCUR_LEFTRA) && INT_GET(i->bb_leftsib, ARCH_CONVERT) != NULLAGBLOCK) {
+			xfs_btree_reada_bufs(cur->bc_mp, cur->bc_private.i.agno,
+				INT_GET(i->bb_leftsib, ARCH_CONVERT), 1);
+			rval++;
+		}
+		if ((lr & XFS_BTCUR_RIGHTRA) && INT_GET(i->bb_rightsib, ARCH_CONVERT) != NULLAGBLOCK) {
+			xfs_btree_reada_bufs(cur->bc_mp, cur->bc_private.i.agno,
+				INT_GET(i->bb_rightsib, ARCH_CONVERT), 1);
+			rval++;
+		}
+		break;
+	default:
+		ASSERT(0);
+	}
+	return rval;
+}
+
+/*
+ * Set the buffer for level "lev" in the cursor to bp, releasing
+ * any previous buffer.
+ */
+void
+xfs_btree_setbuf(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			lev,	/* level in btree */
+	xfs_buf_t		*bp)	/* new buffer to set */
+{
+	xfs_btree_block_t	*b;	/* btree block */
+	xfs_buf_t		*obp;	/* old buffer pointer */
+
+	obp = cur->bc_bufs[lev];
+	if (obp)
+		xfs_trans_brelse(cur->bc_tp, obp);
+	cur->bc_bufs[lev] = bp;
+	cur->bc_ra[lev] = 0;
+	if (!bp)
+		return;
+	b = XFS_BUF_TO_BLOCK(bp);
+	if (XFS_BTREE_LONG_PTRS(cur->bc_btnum)) {
+		if (INT_GET(b->bb_u.l.bb_leftsib, ARCH_CONVERT) == NULLDFSBNO)
+			cur->bc_ra[lev] |= XFS_BTCUR_LEFTRA;
+		if (INT_GET(b->bb_u.l.bb_rightsib, ARCH_CONVERT) == NULLDFSBNO)
+			cur->bc_ra[lev] |= XFS_BTCUR_RIGHTRA;
+	} else {
+		if (INT_GET(b->bb_u.s.bb_leftsib, ARCH_CONVERT) == NULLAGBLOCK)
+			cur->bc_ra[lev] |= XFS_BTCUR_LEFTRA;
+		if (INT_GET(b->bb_u.s.bb_rightsib, ARCH_CONVERT) == NULLAGBLOCK)
+			cur->bc_ra[lev] |= XFS_BTCUR_RIGHTRA;
+	}
+}
diff --git a/fs/xfs/xfs_btree.h b/fs/xfs/xfs_btree.h
new file mode 100644
index 00000000000000..93872bba41f50e
--- /dev/null
+++ b/fs/xfs/xfs_btree.h
@@ -0,0 +1,592 @@
+/*
+ * Copyright (c) 2000-2001 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_BTREE_H__
+#define	__XFS_BTREE_H__
+
+struct xfs_buf;
+struct xfs_bmap_free;
+struct xfs_inode;
+struct xfs_mount;
+struct xfs_trans;
+
+/*
+ * This nonsense is to make -wlint happy.
+ */
+#define	XFS_LOOKUP_EQ	((xfs_lookup_t)XFS_LOOKUP_EQi)
+#define	XFS_LOOKUP_LE	((xfs_lookup_t)XFS_LOOKUP_LEi)
+#define	XFS_LOOKUP_GE	((xfs_lookup_t)XFS_LOOKUP_GEi)
+
+#define	XFS_BTNUM_BNO	((xfs_btnum_t)XFS_BTNUM_BNOi)
+#define	XFS_BTNUM_CNT	((xfs_btnum_t)XFS_BTNUM_CNTi)
+#define	XFS_BTNUM_BMAP	((xfs_btnum_t)XFS_BTNUM_BMAPi)
+#define	XFS_BTNUM_INO	((xfs_btnum_t)XFS_BTNUM_INOi)
+
+/*
+ * Short form header: space allocation btrees.
+ */
+typedef struct xfs_btree_sblock
+{
+	__uint32_t	bb_magic;	/* magic number for block type */
+	__uint16_t	bb_level;	/* 0 is a leaf */
+	__uint16_t	bb_numrecs;	/* current # of data records */
+	xfs_agblock_t	bb_leftsib;	/* left sibling block or NULLAGBLOCK */
+	xfs_agblock_t	bb_rightsib;	/* right sibling block or NULLAGBLOCK */
+} xfs_btree_sblock_t;
+
+/*
+ * Long form header: bmap btrees.
+ */
+typedef struct xfs_btree_lblock
+{
+	__uint32_t	bb_magic;	/* magic number for block type */
+	__uint16_t	bb_level;	/* 0 is a leaf */
+	__uint16_t	bb_numrecs;	/* current # of data records */
+	xfs_dfsbno_t	bb_leftsib;	/* left sibling block or NULLDFSBNO */
+	xfs_dfsbno_t	bb_rightsib;	/* right sibling block or NULLDFSBNO */
+} xfs_btree_lblock_t;
+
+/*
+ * Combined header and structure, used by common code.
+ */
+typedef struct xfs_btree_hdr
+{
+	__uint32_t	bb_magic;	/* magic number for block type */
+	__uint16_t	bb_level;	/* 0 is a leaf */
+	__uint16_t	bb_numrecs;	/* current # of data records */
+} xfs_btree_hdr_t;
+
+typedef struct xfs_btree_block
+{
+	xfs_btree_hdr_t	bb_h;		/* header */
+	union		{
+		struct	{
+			xfs_agblock_t	bb_leftsib;
+			xfs_agblock_t	bb_rightsib;
+		}	s;		/* short form pointers */
+		struct	{
+			xfs_dfsbno_t	bb_leftsib;
+			xfs_dfsbno_t	bb_rightsib;
+		}	l;		/* long form pointers */
+	}		bb_u;		/* rest */
+} xfs_btree_block_t;
+
+/*
+ * For logging record fields.
+ */
+#define	XFS_BB_MAGIC		0x01
+#define	XFS_BB_LEVEL		0x02
+#define	XFS_BB_NUMRECS		0x04
+#define	XFS_BB_LEFTSIB		0x08
+#define	XFS_BB_RIGHTSIB		0x10
+#define	XFS_BB_NUM_BITS		5
+#define	XFS_BB_ALL_BITS		((1 << XFS_BB_NUM_BITS) - 1)
+
+/*
+ * Boolean to select which form of xfs_btree_block_t.bb_u to use.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BTREE_LONG_PTRS)
+int xfs_btree_long_ptrs(xfs_btnum_t btnum);
+#define	XFS_BTREE_LONG_PTRS(btnum)	((btnum) == XFS_BTNUM_BMAP)
+#else
+#define	XFS_BTREE_LONG_PTRS(btnum)	((btnum) == XFS_BTNUM_BMAP)
+#endif
+
+/*
+ * Magic numbers for btree blocks.
+ */
+extern const __uint32_t	xfs_magics[];
+
+/*
+ * Maximum and minimum records in a btree block.
+ * Given block size, type prefix, and leaf flag (0 or 1).
+ * The divisor below is equivalent to lf ? (e1) : (e2) but that produces
+ * compiler warnings.
+ */
+#define	XFS_BTREE_BLOCK_MAXRECS(bsz,t,lf)	\
+	((int)(((bsz) - (uint)sizeof(t ## _block_t)) / \
+	 (((lf) * (uint)sizeof(t ## _rec_t)) + \
+	  ((1 - (lf)) * \
+	   ((uint)sizeof(t ## _key_t) + (uint)sizeof(t ## _ptr_t))))))
+#define	XFS_BTREE_BLOCK_MINRECS(bsz,t,lf)	\
+	(XFS_BTREE_BLOCK_MAXRECS(bsz,t,lf) / 2)
+
+/*
+ * Record, key, and pointer address calculation macros.
+ * Given block size, type prefix, block pointer, and index of requested entry
+ * (first entry numbered 1).
+ */
+#define	XFS_BTREE_REC_ADDR(bsz,t,bb,i,mxr)	\
+	((t ## _rec_t *)((char *)(bb) + sizeof(t ## _block_t) + \
+	 ((i) - 1) * sizeof(t ## _rec_t)))
+#define	XFS_BTREE_KEY_ADDR(bsz,t,bb,i,mxr)	\
+	((t ## _key_t *)((char *)(bb) + sizeof(t ## _block_t) + \
+	 ((i) - 1) * sizeof(t ## _key_t)))
+#define	XFS_BTREE_PTR_ADDR(bsz,t,bb,i,mxr)	\
+	((t ## _ptr_t *)((char *)(bb) + sizeof(t ## _block_t) + \
+	 (mxr) * sizeof(t ## _key_t) + ((i) - 1) * sizeof(t ## _ptr_t)))
+
+#define	XFS_BTREE_MAXLEVELS	8	/* max of all btrees */
+
+/*
+ * Btree cursor structure.
+ * This collects all information needed by the btree code in one place.
+ */
+typedef struct xfs_btree_cur
+{
+	struct xfs_trans	*bc_tp;	/* transaction we're in, if any */
+	struct xfs_mount	*bc_mp;	/* file system mount struct */
+	union {
+		xfs_alloc_rec_t		a;
+		xfs_bmbt_irec_t		b;
+		xfs_inobt_rec_t		i;
+	}		bc_rec;		/* current insert/search record value */
+	struct xfs_buf	*bc_bufs[XFS_BTREE_MAXLEVELS];	/* buf ptr per level */
+	int		bc_ptrs[XFS_BTREE_MAXLEVELS];	/* key/record # */
+	__uint8_t	bc_ra[XFS_BTREE_MAXLEVELS];	/* readahead bits */
+#define	XFS_BTCUR_LEFTRA	1	/* left sibling has been read-ahead */
+#define	XFS_BTCUR_RIGHTRA	2	/* right sibling has been read-ahead */
+	__uint8_t	bc_nlevels;	/* number of levels in the tree */
+	__uint8_t	bc_blocklog;	/* log2(blocksize) of btree blocks */
+	xfs_btnum_t	bc_btnum;	/* identifies which btree type */
+	union {
+		struct {			/* needed for BNO, CNT */
+			struct xfs_buf	*agbp;	/* agf buffer pointer */
+			xfs_agnumber_t	agno;	/* ag number */
+		} a;
+		struct {			/* needed for BMAP */
+			struct xfs_inode *ip;	/* pointer to our inode */
+			struct xfs_bmap_free *flist;	/* list to free after */
+			xfs_fsblock_t	firstblock;	/* 1st blk allocated */
+			int		allocated;	/* count of alloced */
+			short		forksize;	/* fork's inode space */
+			char		whichfork;	/* data or attr fork */
+			char		flags;		/* flags */
+#define	XFS_BTCUR_BPRV_WASDEL	1			/* was delayed */
+		} b;
+		struct {			/* needed for INO */
+			struct xfs_buf	*agbp;	/* agi buffer pointer */
+			xfs_agnumber_t	agno;	/* ag number */
+		} i;
+	}		bc_private;	/* per-btree type data */
+} xfs_btree_cur_t;
+
+#define	XFS_BTREE_NOERROR	0
+#define	XFS_BTREE_ERROR		1
+
+/*
+ * Convert from buffer to btree block header.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BUF_TO_BLOCK)
+xfs_btree_block_t *xfs_buf_to_block(struct xfs_buf *bp);
+#define	XFS_BUF_TO_BLOCK(bp)	xfs_buf_to_block(bp)
+#else
+#define	XFS_BUF_TO_BLOCK(bp)	((xfs_btree_block_t *)(XFS_BUF_PTR(bp)))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BUF_TO_LBLOCK)
+xfs_btree_lblock_t *xfs_buf_to_lblock(struct xfs_buf *bp);
+#define	XFS_BUF_TO_LBLOCK(bp)	xfs_buf_to_lblock(bp)
+#else
+#define	XFS_BUF_TO_LBLOCK(bp)	((xfs_btree_lblock_t *)(XFS_BUF_PTR(bp)))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BUF_TO_SBLOCK)
+xfs_btree_sblock_t *xfs_buf_to_sblock(struct xfs_buf *bp);
+#define	XFS_BUF_TO_SBLOCK(bp)	xfs_buf_to_sblock(bp)
+#else
+#define	XFS_BUF_TO_SBLOCK(bp)	((xfs_btree_sblock_t *)(XFS_BUF_PTR(bp)))
+#endif
+
+#ifdef __KERNEL__
+
+#ifdef DEBUG
+/*
+ * Debug routine: check that block header is ok.
+ */
+void
+xfs_btree_check_block(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	xfs_btree_block_t	*block,	/* generic btree block pointer */
+	int			level,	/* level of the btree block */
+	struct xfs_buf		*bp);	/* buffer containing block, if any */
+
+/*
+ * Debug routine: check that keys are in the right order.
+ */
+void
+xfs_btree_check_key(
+	xfs_btnum_t		btnum,	/* btree identifier */
+	void			*ak1,	/* pointer to left (lower) key */
+	void			*ak2);	/* pointer to right (higher) key */
+
+/*
+ * Debug routine: check that records are in the right order.
+ */
+void
+xfs_btree_check_rec(
+	xfs_btnum_t		btnum,	/* btree identifier */
+	void			*ar1,	/* pointer to left (lower) record */
+	void			*ar2);	/* pointer to right (higher) record */
+#else
+#define	xfs_btree_check_block(a,b,c,d)
+#define	xfs_btree_check_key(a,b,c)
+#define	xfs_btree_check_rec(a,b,c)
+#endif	/* DEBUG */
+
+/*
+ * Checking routine: check that long form block header is ok.
+ */
+int					/* error (0 or EFSCORRUPTED) */
+xfs_btree_check_lblock(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	xfs_btree_lblock_t	*block,	/* btree long form block pointer */
+	int			level,	/* level of the btree block */
+	struct xfs_buf		*bp);	/* buffer containing block, if any */
+
+/*
+ * Checking routine: check that (long) pointer is ok.
+ */
+int					/* error (0 or EFSCORRUPTED) */
+xfs_btree_check_lptr(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	xfs_dfsbno_t		ptr,	/* btree block disk address */
+	int			level);	/* btree block level */
+
+/*
+ * Checking routine: check that short form block header is ok.
+ */
+int					/* error (0 or EFSCORRUPTED) */
+xfs_btree_check_sblock(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	xfs_btree_sblock_t	*block,	/* btree short form block pointer */
+	int			level,	/* level of the btree block */
+	struct xfs_buf		*bp);	/* buffer containing block */
+
+/*
+ * Checking routine: check that (short) pointer is ok.
+ */
+int					/* error (0 or EFSCORRUPTED) */
+xfs_btree_check_sptr(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	xfs_agblock_t		ptr,	/* btree block disk address */
+	int			level);	/* btree block level */
+
+/*
+ * Delete the btree cursor.
+ */
+void
+xfs_btree_del_cursor(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			error);	/* del because of error */
+
+/*
+ * Duplicate the btree cursor.
+ * Allocate a new one, copy the record, re-get the buffers.
+ */
+int					/* error */
+xfs_btree_dup_cursor(
+	xfs_btree_cur_t		*cur,	/* input cursor */
+	xfs_btree_cur_t		**ncur);/* output cursor */
+
+/*
+ * Change the cursor to point to the first record in the current block
+ * at the given level.  Other levels are unaffected.
+ */
+int					/* success=1, failure=0 */
+xfs_btree_firstrec(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			level);	/* level to change */
+
+/*
+ * Retrieve the block pointer from the cursor at the given level.
+ * This may be a bmap btree root or from a buffer.
+ */
+xfs_btree_block_t *			/* generic btree block pointer */
+xfs_btree_get_block(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			level,	/* level in btree */
+	struct xfs_buf		**bpp);	/* buffer containing the block */
+
+/*
+ * Get a buffer for the block, return it with no data read.
+ * Long-form addressing.
+ */
+struct xfs_buf *				/* buffer for fsbno */
+xfs_btree_get_bufl(
+	struct xfs_mount	*mp,	/* file system mount point */
+	struct xfs_trans	*tp,	/* transaction pointer */
+	xfs_fsblock_t		fsbno,	/* file system block number */
+	uint			lock);	/* lock flags for get_buf */
+
+/*
+ * Get a buffer for the block, return it with no data read.
+ * Short-form addressing.
+ */
+struct xfs_buf *				/* buffer for agno/agbno */
+xfs_btree_get_bufs(
+	struct xfs_mount	*mp,	/* file system mount point */
+	struct xfs_trans	*tp,	/* transaction pointer */
+	xfs_agnumber_t		agno,	/* allocation group number */
+	xfs_agblock_t		agbno,	/* allocation group block number */
+	uint			lock);	/* lock flags for get_buf */
+
+/*
+ * Allocate a new btree cursor.
+ * The cursor is either for allocation (A) or bmap (B).
+ */
+xfs_btree_cur_t *			/* new btree cursor */
+xfs_btree_init_cursor(
+	struct xfs_mount	*mp,	/* file system mount point */
+	struct xfs_trans	*tp,	/* transaction pointer */
+	struct xfs_buf		*agbp,	/* (A only) buffer for agf structure */
+	xfs_agnumber_t		agno,	/* (A only) allocation group number */
+	xfs_btnum_t		btnum,	/* btree identifier */
+	struct xfs_inode	*ip,	/* (B only) inode owning the btree */
+	int			whichfork); /* (B only) data/attr fork */
+
+/*
+ * Check for the cursor referring to the last block at the given level.
+ */
+int					/* 1=is last block, 0=not last block */
+xfs_btree_islastblock(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			level);	/* level to check */
+
+/*
+ * Change the cursor to point to the last record in the current block
+ * at the given level.  Other levels are unaffected.
+ */
+int					/* success=1, failure=0 */
+xfs_btree_lastrec(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			level);	/* level to change */
+
+/*
+ * Compute first and last byte offsets for the fields given.
+ * Interprets the offsets table, which contains struct field offsets.
+ */
+void
+xfs_btree_offsets(
+	__int64_t		fields,	/* bitmask of fields */
+	const short		*offsets,/* table of field offsets */
+	int			nbits,	/* number of bits to inspect */
+	int			*first,	/* output: first byte offset */
+	int			*last);	/* output: last byte offset */
+
+/*
+ * Get a buffer for the block, return it read in.
+ * Long-form addressing.
+ */
+int					/* error */
+xfs_btree_read_bufl(
+	struct xfs_mount	*mp,	/* file system mount point */
+	struct xfs_trans	*tp,	/* transaction pointer */
+	xfs_fsblock_t		fsbno,	/* file system block number */
+	uint			lock,	/* lock flags for read_buf */
+	struct xfs_buf		**bpp,	/* buffer for fsbno */
+	int			refval);/* ref count value for buffer */
+
+/*
+ * Get a buffer for the block, return it read in.
+ * Short-form addressing.
+ */
+int					/* error */
+xfs_btree_read_bufs(
+	struct xfs_mount	*mp,	/* file system mount point */
+	struct xfs_trans	*tp,	/* transaction pointer */
+	xfs_agnumber_t		agno,	/* allocation group number */
+	xfs_agblock_t		agbno,	/* allocation group block number */
+	uint			lock,	/* lock flags for read_buf */
+	struct xfs_buf		**bpp,	/* buffer for agno/agbno */
+	int			refval);/* ref count value for buffer */
+
+/*
+ * Read-ahead the block, don't wait for it, don't return a buffer.
+ * Long-form addressing.
+ */
+void					/* error */
+xfs_btree_reada_bufl(
+	struct xfs_mount	*mp,	/* file system mount point */
+	xfs_fsblock_t		fsbno,	/* file system block number */
+	xfs_extlen_t		count);	/* count of filesystem blocks */
+
+/*
+ * Read-ahead the block, don't wait for it, don't return a buffer.
+ * Short-form addressing.
+ */
+void					/* error */
+xfs_btree_reada_bufs(
+	struct xfs_mount	*mp,	/* file system mount point */
+	xfs_agnumber_t		agno,	/* allocation group number */
+	xfs_agblock_t		agbno,	/* allocation group block number */
+	xfs_extlen_t		count);	/* count of filesystem blocks */
+
+/*
+ * Read-ahead btree blocks, at the given level.
+ * Bits in lr are set from XFS_BTCUR_{LEFT,RIGHT}RA.
+ */
+int					/* readahead block count */
+xfs_btree_readahead_core(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			lev,	/* level in btree */
+	int			lr);	/* left/right bits */
+
+static inline int			/* readahead block count */
+xfs_btree_readahead(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			lev,	/* level in btree */
+	int			lr)	/* left/right bits */
+{
+	if ((cur->bc_ra[lev] | lr) == cur->bc_ra[lev])
+		return 0;
+
+	return xfs_btree_readahead_core(cur, lev, lr);
+}
+
+
+/*
+ * Set the buffer for level "lev" in the cursor to bp, releasing
+ * any previous buffer.
+ */
+void
+xfs_btree_setbuf(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			lev,	/* level in btree */
+	struct xfs_buf		*bp);	/* new buffer to set */
+
+#endif	/* __KERNEL__ */
+
+
+/*
+ * Min and max functions for extlen, agblock, fileoff, and filblks types.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_EXTLEN_MIN)
+xfs_extlen_t xfs_extlen_min(xfs_extlen_t a, xfs_extlen_t b);
+#define	XFS_EXTLEN_MIN(a,b)	xfs_extlen_min(a,b)
+#else
+#define	XFS_EXTLEN_MIN(a,b)	\
+	((xfs_extlen_t)(a) < (xfs_extlen_t)(b) ? \
+	 (xfs_extlen_t)(a) : (xfs_extlen_t)(b))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_EXTLEN_MAX)
+xfs_extlen_t xfs_extlen_max(xfs_extlen_t a, xfs_extlen_t b);
+#define	XFS_EXTLEN_MAX(a,b)	xfs_extlen_max(a,b)
+#else
+#define	XFS_EXTLEN_MAX(a,b)	\
+	((xfs_extlen_t)(a) > (xfs_extlen_t)(b) ? \
+	 (xfs_extlen_t)(a) : (xfs_extlen_t)(b))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_AGBLOCK_MIN)
+xfs_agblock_t xfs_agblock_min(xfs_agblock_t a, xfs_agblock_t b);
+#define	XFS_AGBLOCK_MIN(a,b)	xfs_agblock_min(a,b)
+#else
+#define	XFS_AGBLOCK_MIN(a,b)	\
+	((xfs_agblock_t)(a) < (xfs_agblock_t)(b) ? \
+	 (xfs_agblock_t)(a) : (xfs_agblock_t)(b))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_AGBLOCK_MAX)
+xfs_agblock_t xfs_agblock_max(xfs_agblock_t a, xfs_agblock_t b);
+#define	XFS_AGBLOCK_MAX(a,b)	xfs_agblock_max(a,b)
+#else
+#define	XFS_AGBLOCK_MAX(a,b)	\
+	((xfs_agblock_t)(a) > (xfs_agblock_t)(b) ? \
+	 (xfs_agblock_t)(a) : (xfs_agblock_t)(b))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_FILEOFF_MIN)
+xfs_fileoff_t xfs_fileoff_min(xfs_fileoff_t a, xfs_fileoff_t b);
+#define	XFS_FILEOFF_MIN(a,b)	xfs_fileoff_min(a,b)
+#else
+#define	XFS_FILEOFF_MIN(a,b)	\
+	((xfs_fileoff_t)(a) < (xfs_fileoff_t)(b) ? \
+	 (xfs_fileoff_t)(a) : (xfs_fileoff_t)(b))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_FILEOFF_MAX)
+xfs_fileoff_t xfs_fileoff_max(xfs_fileoff_t a, xfs_fileoff_t b);
+#define	XFS_FILEOFF_MAX(a,b)	xfs_fileoff_max(a,b)
+#else
+#define	XFS_FILEOFF_MAX(a,b)	\
+	((xfs_fileoff_t)(a) > (xfs_fileoff_t)(b) ? \
+	 (xfs_fileoff_t)(a) : (xfs_fileoff_t)(b))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_FILBLKS_MIN)
+xfs_filblks_t xfs_filblks_min(xfs_filblks_t a, xfs_filblks_t b);
+#define	XFS_FILBLKS_MIN(a,b)	xfs_filblks_min(a,b)
+#else
+#define	XFS_FILBLKS_MIN(a,b)	\
+	((xfs_filblks_t)(a) < (xfs_filblks_t)(b) ? \
+	 (xfs_filblks_t)(a) : (xfs_filblks_t)(b))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_FILBLKS_MAX)
+xfs_filblks_t xfs_filblks_max(xfs_filblks_t a, xfs_filblks_t b);
+#define	XFS_FILBLKS_MAX(a,b)	xfs_filblks_max(a,b)
+#else
+#define	XFS_FILBLKS_MAX(a,b)	\
+	((xfs_filblks_t)(a) > (xfs_filblks_t)(b) ? \
+	 (xfs_filblks_t)(a) : (xfs_filblks_t)(b))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_FSB_SANITY_CHECK)
+int xfs_fsb_sanity_check(struct xfs_mount *mp, xfs_fsblock_t fsb);
+#define	XFS_FSB_SANITY_CHECK(mp,fsb)	xfs_fsb_sanity_check(mp,fsb)
+#else
+#define	XFS_FSB_SANITY_CHECK(mp,fsb)	\
+	(XFS_FSB_TO_AGNO(mp, fsb) < mp->m_sb.sb_agcount && \
+	 XFS_FSB_TO_AGBNO(mp, fsb) < mp->m_sb.sb_agblocks)
+#endif
+
+/*
+ * Macros to set EFSCORRUPTED & return/branch.
+ */
+#define	XFS_WANT_CORRUPTED_GOTO(x,l)	\
+	{ \
+		int fs_is_ok = (x); \
+		ASSERT(fs_is_ok); \
+		if (unlikely(!fs_is_ok)) { \
+			XFS_ERROR_REPORT("XFS_WANT_CORRUPTED_GOTO", \
+					 XFS_ERRLEVEL_LOW, NULL); \
+			error = XFS_ERROR(EFSCORRUPTED); \
+			goto l; \
+		} \
+	}
+
+#define	XFS_WANT_CORRUPTED_RETURN(x)	\
+	{ \
+		int fs_is_ok = (x); \
+		ASSERT(fs_is_ok); \
+		if (unlikely(!fs_is_ok)) { \
+			XFS_ERROR_REPORT("XFS_WANT_CORRUPTED_RETURN", \
+					 XFS_ERRLEVEL_LOW, NULL); \
+			return XFS_ERROR(EFSCORRUPTED); \
+		} \
+	}
+
+#endif	/* __XFS_BTREE_H__ */
diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c
new file mode 100644
index 00000000000000..9ab0039f07df21
--- /dev/null
+++ b/fs/xfs/xfs_buf_item.c
@@ -0,0 +1,1221 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+/*
+ * This file contains the implementation of the xfs_buf_log_item.
+ * It contains the item operations used to manipulate the buf log
+ * items as well as utility routines used by the buffer specific
+ * transaction routines.
+ */
+
+#include "xfs.h"
+
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_buf_item.h"
+#include "xfs_sb.h"
+#include "xfs_dir.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_trans_priv.h"
+#include "xfs_rw.h"
+#include "xfs_bit.h"
+#include "xfs_error.h"
+
+
+kmem_zone_t	*xfs_buf_item_zone;
+
+#ifdef XFS_TRANS_DEBUG
+/*
+ * This function uses an alternate strategy for tracking the bytes
+ * that the user requests to be logged.  This can then be used
+ * in conjunction with the bli_orig array in the buf log item to
+ * catch bugs in our callers' code.
+ *
+ * We also double check the bits set in xfs_buf_item_log using a
+ * simple algorithm to check that every byte is accounted for.
+ */
+STATIC void
+xfs_buf_item_log_debug(
+	xfs_buf_log_item_t	*bip,
+	uint			first,
+	uint			last)
+{
+	uint	x;
+	uint	byte;
+	uint	nbytes;
+	uint	chunk_num;
+	uint	word_num;
+	uint	bit_num;
+	uint	bit_set;
+	uint	*wordp;
+
+	ASSERT(bip->bli_logged != NULL);
+	byte = first;
+	nbytes = last - first + 1;
+	bfset(bip->bli_logged, first, nbytes);
+	for (x = 0; x < nbytes; x++) {
+		chunk_num = byte >> XFS_BLI_SHIFT;
+		word_num = chunk_num >> BIT_TO_WORD_SHIFT;
+		bit_num = chunk_num & (NBWORD - 1);
+		wordp = &(bip->bli_format.blf_data_map[word_num]);
+		bit_set = *wordp & (1 << bit_num);
+		ASSERT(bit_set);
+		byte++;
+	}
+}
+
+/*
+ * This function is called when we flush something into a buffer without
+ * logging it.  This happens for things like inodes which are logged
+ * separately from the buffer.
+ */
+void
+xfs_buf_item_flush_log_debug(
+	xfs_buf_t	*bp,
+	uint		first,
+	uint		last)
+{
+	xfs_buf_log_item_t	*bip;
+	uint			nbytes;
+
+	bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t*);
+	if ((bip == NULL) || (bip->bli_item.li_type != XFS_LI_BUF)) {
+		return;
+	}
+
+	ASSERT(bip->bli_logged != NULL);
+	nbytes = last - first + 1;
+	bfset(bip->bli_logged, first, nbytes);
+}
+
+/*
+ * This function is called to verify that our caller's have logged
+ * all the bytes that they changed.
+ *
+ * It does this by comparing the original copy of the buffer stored in
+ * the buf log item's bli_orig array to the current copy of the buffer
+ * and ensuring that all bytes which miscompare are set in the bli_logged
+ * array of the buf log item.
+ */
+STATIC void
+xfs_buf_item_log_check(
+	xfs_buf_log_item_t	*bip)
+{
+	char		*orig;
+	char		*buffer;
+	int		x;
+	xfs_buf_t	*bp;
+
+	ASSERT(bip->bli_orig != NULL);
+	ASSERT(bip->bli_logged != NULL);
+
+	bp = bip->bli_buf;
+	ASSERT(XFS_BUF_COUNT(bp) > 0);
+	ASSERT(XFS_BUF_PTR(bp) != NULL);
+	orig = bip->bli_orig;
+	buffer = XFS_BUF_PTR(bp);
+	for (x = 0; x < XFS_BUF_COUNT(bp); x++) {
+		if (orig[x] != buffer[x] && !btst(bip->bli_logged, x))
+			cmn_err(CE_PANIC,
+	"xfs_buf_item_log_check bip %x buffer %x orig %x index %d",
+				bip, bp, orig, x);
+	}
+}
+#else
+#define		xfs_buf_item_log_debug(x,y,z)
+#define		xfs_buf_item_log_check(x)
+#endif
+
+STATIC void	xfs_buf_error_relse(xfs_buf_t *bp);
+STATIC void	xfs_buf_do_callbacks(xfs_buf_t *bp, xfs_log_item_t *lip);
+
+/*
+ * This returns the number of log iovecs needed to log the
+ * given buf log item.
+ *
+ * It calculates this as 1 iovec for the buf log format structure
+ * and 1 for each stretch of non-contiguous chunks to be logged.
+ * Contiguous chunks are logged in a single iovec.
+ *
+ * If the XFS_BLI_STALE flag has been set, then log nothing.
+ */
+uint
+xfs_buf_item_size(
+	xfs_buf_log_item_t	*bip)
+{
+	uint		nvecs;
+	int		next_bit;
+	int		last_bit;
+	xfs_buf_t	*bp;
+
+	ASSERT(atomic_read(&bip->bli_refcount) > 0);
+	if (bip->bli_flags & XFS_BLI_STALE) {
+		/*
+		 * The buffer is stale, so all we need to log
+		 * is the buf log format structure with the
+		 * cancel flag in it.
+		 */
+		xfs_buf_item_trace("SIZE STALE", bip);
+		ASSERT(bip->bli_format.blf_flags & XFS_BLI_CANCEL);
+		return 1;
+	}
+
+	bp = bip->bli_buf;
+	ASSERT(bip->bli_flags & XFS_BLI_LOGGED);
+	nvecs = 1;
+	last_bit = xfs_next_bit(bip->bli_format.blf_data_map,
+					 bip->bli_format.blf_map_size, 0);
+	ASSERT(last_bit != -1);
+	nvecs++;
+	while (last_bit != -1) {
+		/*
+		 * This takes the bit number to start looking from and
+		 * returns the next set bit from there.  It returns -1
+		 * if there are no more bits set or the start bit is
+		 * beyond the end of the bitmap.
+		 */
+		next_bit = xfs_next_bit(bip->bli_format.blf_data_map,
+						 bip->bli_format.blf_map_size,
+						 last_bit + 1);
+		/*
+		 * If we run out of bits, leave the loop,
+		 * else if we find a new set of bits bump the number of vecs,
+		 * else keep scanning the current set of bits.
+		 */
+		if (next_bit == -1) {
+			last_bit = -1;
+		} else if (next_bit != last_bit + 1) {
+			last_bit = next_bit;
+			nvecs++;
+		} else if (xfs_buf_offset(bp, next_bit * XFS_BLI_CHUNK) !=
+			   (xfs_buf_offset(bp, last_bit * XFS_BLI_CHUNK) +
+			    XFS_BLI_CHUNK)) {
+			last_bit = next_bit;
+			nvecs++;
+		} else {
+			last_bit++;
+		}
+	}
+
+	xfs_buf_item_trace("SIZE NORM", bip);
+	return nvecs;
+}
+
+/*
+ * This is called to fill in the vector of log iovecs for the
+ * given log buf item.  It fills the first entry with a buf log
+ * format structure, and the rest point to contiguous chunks
+ * within the buffer.
+ */
+void
+xfs_buf_item_format(
+	xfs_buf_log_item_t	*bip,
+	xfs_log_iovec_t		*log_vector)
+{
+	uint		base_size;
+	uint		nvecs;
+	xfs_log_iovec_t	*vecp;
+	xfs_buf_t	*bp;
+	int		first_bit;
+	int		last_bit;
+	int		next_bit;
+	uint		nbits;
+	uint		buffer_offset;
+
+	ASSERT(atomic_read(&bip->bli_refcount) > 0);
+	ASSERT((bip->bli_flags & XFS_BLI_LOGGED) ||
+	       (bip->bli_flags & XFS_BLI_STALE));
+	bp = bip->bli_buf;
+	ASSERT(XFS_BUF_BP_ISMAPPED(bp));
+	vecp = log_vector;
+
+	/*
+	 * The size of the base structure is the size of the
+	 * declared structure plus the space for the extra words
+	 * of the bitmap.  We subtract one from the map size, because
+	 * the first element of the bitmap is accounted for in the
+	 * size of the base structure.
+	 */
+	base_size =
+		(uint)(sizeof(xfs_buf_log_format_t) +
+		       ((bip->bli_format.blf_map_size - 1) * sizeof(uint)));
+	vecp->i_addr = (xfs_caddr_t)&bip->bli_format;
+	vecp->i_len = base_size;
+	vecp++;
+	nvecs = 1;
+
+	if (bip->bli_flags & XFS_BLI_STALE) {
+		/*
+		 * The buffer is stale, so all we need to log
+		 * is the buf log format structure with the
+		 * cancel flag in it.
+		 */
+		xfs_buf_item_trace("FORMAT STALE", bip);
+		ASSERT(bip->bli_format.blf_flags & XFS_BLI_CANCEL);
+		bip->bli_format.blf_size = nvecs;
+		return;
+	}
+
+	/*
+	 * Fill in an iovec for each set of contiguous chunks.
+	 */
+	first_bit = xfs_next_bit(bip->bli_format.blf_data_map,
+					 bip->bli_format.blf_map_size, 0);
+	ASSERT(first_bit != -1);
+	last_bit = first_bit;
+	nbits = 1;
+	for (;;) {
+		/*
+		 * This takes the bit number to start looking from and
+		 * returns the next set bit from there.  It returns -1
+		 * if there are no more bits set or the start bit is
+		 * beyond the end of the bitmap.
+		 */
+		next_bit = xfs_next_bit(bip->bli_format.blf_data_map,
+						 bip->bli_format.blf_map_size,
+						 (uint)last_bit + 1);
+		/*
+		 * If we run out of bits fill in the last iovec and get
+		 * out of the loop.
+		 * Else if we start a new set of bits then fill in the
+		 * iovec for the series we were looking at and start
+		 * counting the bits in the new one.
+		 * Else we're still in the same set of bits so just
+		 * keep counting and scanning.
+		 */
+		if (next_bit == -1) {
+			buffer_offset = first_bit * XFS_BLI_CHUNK;
+			vecp->i_addr = xfs_buf_offset(bp, buffer_offset);
+			vecp->i_len = nbits * XFS_BLI_CHUNK;
+			nvecs++;
+			break;
+		} else if (next_bit != last_bit + 1) {
+			buffer_offset = first_bit * XFS_BLI_CHUNK;
+			vecp->i_addr = xfs_buf_offset(bp, buffer_offset);
+			vecp->i_len = nbits * XFS_BLI_CHUNK;
+			nvecs++;
+			vecp++;
+			first_bit = next_bit;
+			last_bit = next_bit;
+			nbits = 1;
+		} else if (xfs_buf_offset(bp, next_bit << XFS_BLI_SHIFT) !=
+			   (xfs_buf_offset(bp, last_bit << XFS_BLI_SHIFT) +
+			    XFS_BLI_CHUNK)) {
+			buffer_offset = first_bit * XFS_BLI_CHUNK;
+			vecp->i_addr = xfs_buf_offset(bp, buffer_offset);
+			vecp->i_len = nbits * XFS_BLI_CHUNK;
+/* You would think we need to bump the nvecs here too, but we do not
+ * this number is used by recovery, and it gets confused by the boundary
+ * split here
+ *			nvecs++;
+ */
+			vecp++;
+			first_bit = next_bit;
+			last_bit = next_bit;
+			nbits = 1;
+		} else {
+			last_bit++;
+			nbits++;
+		}
+	}
+	bip->bli_format.blf_size = nvecs;
+
+	/*
+	 * Check to make sure everything is consistent.
+	 */
+	xfs_buf_item_trace("FORMAT NORM", bip);
+	xfs_buf_item_log_check(bip);
+}
+
+/*
+ * This is called to pin the buffer associated with the buf log
+ * item in memory so it cannot be written out.  Simply call bpin()
+ * on the buffer to do this.
+ */
+void
+xfs_buf_item_pin(
+	xfs_buf_log_item_t	*bip)
+{
+	xfs_buf_t	*bp;
+
+	bp = bip->bli_buf;
+	ASSERT(XFS_BUF_ISBUSY(bp));
+	ASSERT(atomic_read(&bip->bli_refcount) > 0);
+	ASSERT((bip->bli_flags & XFS_BLI_LOGGED) ||
+	       (bip->bli_flags & XFS_BLI_STALE));
+	xfs_buf_item_trace("PIN", bip);
+	xfs_buftrace("XFS_PIN", bp);
+	xfs_bpin(bp);
+}
+
+
+/*
+ * This is called to unpin the buffer associated with the buf log
+ * item which was previously pinned with a call to xfs_buf_item_pin().
+ * Just call bunpin() on the buffer to do this.
+ *
+ * Also drop the reference to the buf item for the current transaction.
+ * If the XFS_BLI_STALE flag is set and we are the last reference,
+ * then free up the buf log item and unlock the buffer.
+ */
+void
+xfs_buf_item_unpin(
+	xfs_buf_log_item_t	*bip,
+	int			stale)
+{
+	xfs_mount_t	*mp;
+	xfs_buf_t	*bp;
+	int		freed;
+	SPLDECL(s);
+
+	bp = bip->bli_buf;
+	ASSERT(bp != NULL);
+	ASSERT(XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *) == bip);
+	ASSERT(atomic_read(&bip->bli_refcount) > 0);
+	xfs_buf_item_trace("UNPIN", bip);
+	xfs_buftrace("XFS_UNPIN", bp);
+
+	freed = atomic_dec_and_test(&bip->bli_refcount);
+	mp = bip->bli_item.li_mountp;
+	xfs_bunpin(bp);
+	if (freed && stale) {
+		ASSERT(bip->bli_flags & XFS_BLI_STALE);
+		ASSERT(XFS_BUF_VALUSEMA(bp) <= 0);
+		ASSERT(!(XFS_BUF_ISDELAYWRITE(bp)));
+		ASSERT(XFS_BUF_ISSTALE(bp));
+		ASSERT(bip->bli_format.blf_flags & XFS_BLI_CANCEL);
+		xfs_buf_item_trace("UNPIN STALE", bip);
+		xfs_buftrace("XFS_UNPIN STALE", bp);
+		/*
+		 * If we get called here because of an IO error, we may
+		 * or may not have the item on the AIL. xfs_trans_delete_ail()
+		 * will take care of that situation.
+		 * xfs_trans_delete_ail() drops the AIL lock.
+		 */
+		if (bip->bli_flags & XFS_BLI_STALE_INODE) {
+			xfs_buf_do_callbacks(bp, (xfs_log_item_t *)bip);
+			XFS_BUF_SET_FSPRIVATE(bp, NULL);
+			XFS_BUF_CLR_IODONE_FUNC(bp);
+		} else {
+			AIL_LOCK(mp,s);
+			xfs_trans_delete_ail(mp, (xfs_log_item_t *)bip, s);
+			xfs_buf_item_relse(bp);
+			ASSERT(XFS_BUF_FSPRIVATE(bp, void *) == NULL);
+		}
+		xfs_buf_relse(bp);
+	}
+}
+
+/*
+ * this is called from uncommit in the forced-shutdown path.
+ * we need to check to see if the reference count on the log item
+ * is going to drop to zero.  If so, unpin will free the log item
+ * so we need to free the item's descriptor (that points to the item)
+ * in the transaction.
+ */
+void
+xfs_buf_item_unpin_remove(
+	xfs_buf_log_item_t	*bip,
+	xfs_trans_t		*tp)
+{
+	xfs_buf_t		*bp;
+	xfs_log_item_desc_t	*lidp;
+	int			stale = 0;
+
+	bp = bip->bli_buf;
+	/*
+	 * will xfs_buf_item_unpin() call xfs_buf_item_relse()?
+	 */
+	if ((atomic_read(&bip->bli_refcount) == 1) &&
+	    (bip->bli_flags & XFS_BLI_STALE)) {
+		ASSERT(XFS_BUF_VALUSEMA(bip->bli_buf) <= 0);
+		xfs_buf_item_trace("UNPIN REMOVE", bip);
+		xfs_buftrace("XFS_UNPIN_REMOVE", bp);
+		/*
+		 * yes -- clear the xaction descriptor in-use flag
+		 * and free the chunk if required.  We can safely
+		 * do some work here and then call buf_item_unpin
+		 * to do the rest because if the if is true, then
+		 * we are holding the buffer locked so no one else
+		 * will be able to bump up the refcount.
+		 */
+		lidp = xfs_trans_find_item(tp, (xfs_log_item_t *) bip);
+		stale = lidp->lid_flags & XFS_LID_BUF_STALE;
+		xfs_trans_free_item(tp, lidp);
+		/*
+		 * Since the transaction no longer refers to the buffer,
+		 * the buffer should no longer refer to the transaction.
+		 */
+		XFS_BUF_SET_FSPRIVATE2(bp, NULL);
+	}
+
+	xfs_buf_item_unpin(bip, stale);
+
+	return;
+}
+
+/*
+ * This is called to attempt to lock the buffer associated with this
+ * buf log item.  Don't sleep on the buffer lock.  If we can't get
+ * the lock right away, return 0.  If we can get the lock, pull the
+ * buffer from the free list, mark it busy, and return 1.
+ */
+uint
+xfs_buf_item_trylock(
+	xfs_buf_log_item_t	*bip)
+{
+	xfs_buf_t	*bp;
+
+	bp = bip->bli_buf;
+
+	if (XFS_BUF_ISPINNED(bp)) {
+		return XFS_ITEM_PINNED;
+	}
+
+	if (!XFS_BUF_CPSEMA(bp)) {
+		return XFS_ITEM_LOCKED;
+	}
+
+	/*
+	 * Remove the buffer from the free list.  Only do this
+	 * if it's on the free list.  Private buffers like the
+	 * superblock buffer are not.
+	 */
+	XFS_BUF_HOLD(bp);
+
+	ASSERT(!(bip->bli_flags & XFS_BLI_STALE));
+	xfs_buf_item_trace("TRYLOCK SUCCESS", bip);
+	return XFS_ITEM_SUCCESS;
+}
+
+/*
+ * Release the buffer associated with the buf log item.
+ * If there is no dirty logged data associated with the
+ * buffer recorded in the buf log item, then free the
+ * buf log item and remove the reference to it in the
+ * buffer.
+ *
+ * This call ignores the recursion count.  It is only called
+ * when the buffer should REALLY be unlocked, regardless
+ * of the recursion count.
+ *
+ * If the XFS_BLI_HOLD flag is set in the buf log item, then
+ * free the log item if necessary but do not unlock the buffer.
+ * This is for support of xfs_trans_bhold(). Make sure the
+ * XFS_BLI_HOLD field is cleared if we don't free the item.
+ */
+void
+xfs_buf_item_unlock(
+	xfs_buf_log_item_t	*bip)
+{
+	int		aborted;
+	xfs_buf_t	*bp;
+	uint		hold;
+
+	bp = bip->bli_buf;
+	xfs_buftrace("XFS_UNLOCK", bp);
+
+	/*
+	 * Clear the buffer's association with this transaction.
+	 */
+	XFS_BUF_SET_FSPRIVATE2(bp, NULL);
+
+	/*
+	 * If this is a transaction abort, don't return early.
+	 * Instead, allow the brelse to happen.
+	 * Normally it would be done for stale (cancelled) buffers
+	 * at unpin time, but we'll never go through the pin/unpin
+	 * cycle if we abort inside commit.
+	 */
+	aborted = (bip->bli_item.li_flags & XFS_LI_ABORTED) != 0;
+
+	/*
+	 * If the buf item is marked stale, then don't do anything.
+	 * We'll unlock the buffer and free the buf item when the
+	 * buffer is unpinned for the last time.
+	 */
+	if (bip->bli_flags & XFS_BLI_STALE) {
+		bip->bli_flags &= ~XFS_BLI_LOGGED;
+		xfs_buf_item_trace("UNLOCK STALE", bip);
+		ASSERT(bip->bli_format.blf_flags & XFS_BLI_CANCEL);
+		if (!aborted)
+			return;
+	}
+
+	/*
+	 * Drop the transaction's reference to the log item if
+	 * it was not logged as part of the transaction.  Otherwise
+	 * we'll drop the reference in xfs_buf_item_unpin() when
+	 * the transaction is really through with the buffer.
+	 */
+	if (!(bip->bli_flags & XFS_BLI_LOGGED)) {
+		atomic_dec(&bip->bli_refcount);
+	} else {
+		/*
+		 * Clear the logged flag since this is per
+		 * transaction state.
+		 */
+		bip->bli_flags &= ~XFS_BLI_LOGGED;
+	}
+
+	/*
+	 * Before possibly freeing the buf item, determine if we should
+	 * release the buffer at the end of this routine.
+	 */
+	hold = bip->bli_flags & XFS_BLI_HOLD;
+	xfs_buf_item_trace("UNLOCK", bip);
+
+	/*
+	 * If the buf item isn't tracking any data, free it.
+	 * Otherwise, if XFS_BLI_HOLD is set clear it.
+	 */
+	if (xfs_count_bits(bip->bli_format.blf_data_map,
+			      bip->bli_format.blf_map_size, 0) == 0) {
+		xfs_buf_item_relse(bp);
+	} else if (hold) {
+		bip->bli_flags &= ~XFS_BLI_HOLD;
+	}
+
+	/*
+	 * Release the buffer if XFS_BLI_HOLD was not set.
+	 */
+	if (!hold) {
+		xfs_buf_relse(bp);
+	}
+}
+
+/*
+ * This is called to find out where the oldest active copy of the
+ * buf log item in the on disk log resides now that the last log
+ * write of it completed at the given lsn.
+ * We always re-log all the dirty data in a buffer, so usually the
+ * latest copy in the on disk log is the only one that matters.  For
+ * those cases we simply return the given lsn.
+ *
+ * The one exception to this is for buffers full of newly allocated
+ * inodes.  These buffers are only relogged with the XFS_BLI_INODE_BUF
+ * flag set, indicating that only the di_next_unlinked fields from the
+ * inodes in the buffers will be replayed during recovery.  If the
+ * original newly allocated inode images have not yet been flushed
+ * when the buffer is so relogged, then we need to make sure that we
+ * keep the old images in the 'active' portion of the log.  We do this
+ * by returning the original lsn of that transaction here rather than
+ * the current one.
+ */
+xfs_lsn_t
+xfs_buf_item_committed(
+	xfs_buf_log_item_t	*bip,
+	xfs_lsn_t		lsn)
+{
+	xfs_buf_item_trace("COMMITTED", bip);
+	if ((bip->bli_flags & XFS_BLI_INODE_ALLOC_BUF) &&
+	    (bip->bli_item.li_lsn != 0)) {
+		return bip->bli_item.li_lsn;
+	}
+	return (lsn);
+}
+
+/*
+ * This is called when the transaction holding the buffer is aborted.
+ * Just behave as if the transaction had been cancelled. If we're shutting down
+ * and have aborted this transaction, we'll trap this buffer when it tries to
+ * get written out.
+ */
+void
+xfs_buf_item_abort(
+	xfs_buf_log_item_t	*bip)
+{
+	xfs_buf_t	*bp;
+
+	bp = bip->bli_buf;
+	xfs_buftrace("XFS_ABORT", bp);
+	XFS_BUF_SUPER_STALE(bp);
+	xfs_buf_item_unlock(bip);
+	return;
+}
+
+/*
+ * This is called to asynchronously write the buffer associated with this
+ * buf log item out to disk. The buffer will already have been locked by
+ * a successful call to xfs_buf_item_trylock().  If the buffer still has
+ * B_DELWRI set, then get it going out to disk with a call to bawrite().
+ * If not, then just release the buffer.
+ */
+void
+xfs_buf_item_push(
+	xfs_buf_log_item_t	*bip)
+{
+	xfs_buf_t	*bp;
+
+	ASSERT(!(bip->bli_flags & XFS_BLI_STALE));
+	xfs_buf_item_trace("PUSH", bip);
+
+	bp = bip->bli_buf;
+
+	if (XFS_BUF_ISDELAYWRITE(bp)) {
+		xfs_bawrite(bip->bli_item.li_mountp, bp);
+	} else {
+		xfs_buf_relse(bp);
+	}
+}
+
+/* ARGSUSED */
+void
+xfs_buf_item_committing(xfs_buf_log_item_t *bip, xfs_lsn_t commit_lsn)
+{
+}
+
+/*
+ * This is the ops vector shared by all buf log items.
+ */
+struct xfs_item_ops xfs_buf_item_ops = {
+	.iop_size	= (uint(*)(xfs_log_item_t*))xfs_buf_item_size,
+	.iop_format	= (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
+					xfs_buf_item_format,
+	.iop_pin	= (void(*)(xfs_log_item_t*))xfs_buf_item_pin,
+	.iop_unpin	= (void(*)(xfs_log_item_t*, int))xfs_buf_item_unpin,
+	.iop_unpin_remove = (void(*)(xfs_log_item_t*, xfs_trans_t *))
+					xfs_buf_item_unpin_remove,
+	.iop_trylock	= (uint(*)(xfs_log_item_t*))xfs_buf_item_trylock,
+	.iop_unlock	= (void(*)(xfs_log_item_t*))xfs_buf_item_unlock,
+	.iop_committed	= (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
+					xfs_buf_item_committed,
+	.iop_push	= (void(*)(xfs_log_item_t*))xfs_buf_item_push,
+	.iop_abort	= (void(*)(xfs_log_item_t*))xfs_buf_item_abort,
+	.iop_pushbuf	= NULL,
+	.iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
+					xfs_buf_item_committing
+};
+
+
+/*
+ * Allocate a new buf log item to go with the given buffer.
+ * Set the buffer's b_fsprivate field to point to the new
+ * buf log item.  If there are other item's attached to the
+ * buffer (see xfs_buf_attach_iodone() below), then put the
+ * buf log item at the front.
+ */
+void
+xfs_buf_item_init(
+	xfs_buf_t	*bp,
+	xfs_mount_t	*mp)
+{
+	xfs_log_item_t		*lip;
+	xfs_buf_log_item_t	*bip;
+	int			chunks;
+	int			map_size;
+
+	/*
+	 * Check to see if there is already a buf log item for
+	 * this buffer.  If there is, it is guaranteed to be
+	 * the first.  If we do already have one, there is
+	 * nothing to do here so return.
+	 */
+	if (XFS_BUF_FSPRIVATE3(bp, xfs_mount_t *) != mp)
+		XFS_BUF_SET_FSPRIVATE3(bp, mp);
+	XFS_BUF_SET_BDSTRAT_FUNC(bp, xfs_bdstrat_cb);
+	if (XFS_BUF_FSPRIVATE(bp, void *) != NULL) {
+		lip = XFS_BUF_FSPRIVATE(bp, xfs_log_item_t *);
+		if (lip->li_type == XFS_LI_BUF) {
+			return;
+		}
+	}
+
+	/*
+	 * chunks is the number of XFS_BLI_CHUNK size pieces
+	 * the buffer can be divided into. Make sure not to
+	 * truncate any pieces.  map_size is the size of the
+	 * bitmap needed to describe the chunks of the buffer.
+	 */
+	chunks = (int)((XFS_BUF_COUNT(bp) + (XFS_BLI_CHUNK - 1)) >> XFS_BLI_SHIFT);
+	map_size = (int)((chunks + NBWORD) >> BIT_TO_WORD_SHIFT);
+
+	bip = (xfs_buf_log_item_t*)kmem_zone_zalloc(xfs_buf_item_zone,
+						    KM_SLEEP);
+	bip->bli_item.li_type = XFS_LI_BUF;
+	bip->bli_item.li_ops = &xfs_buf_item_ops;
+	bip->bli_item.li_mountp = mp;
+	bip->bli_buf = bp;
+	bip->bli_format.blf_type = XFS_LI_BUF;
+	bip->bli_format.blf_blkno = (__int64_t)XFS_BUF_ADDR(bp);
+	bip->bli_format.blf_len = (ushort)BTOBB(XFS_BUF_COUNT(bp));
+	bip->bli_format.blf_map_size = map_size;
+#ifdef XFS_BLI_TRACE
+	bip->bli_trace = ktrace_alloc(XFS_BLI_TRACE_SIZE, KM_SLEEP);
+#endif
+
+#ifdef XFS_TRANS_DEBUG
+	/*
+	 * Allocate the arrays for tracking what needs to be logged
+	 * and what our callers request to be logged.  bli_orig
+	 * holds a copy of the original, clean buffer for comparison
+	 * against, and bli_logged keeps a 1 bit flag per byte in
+	 * the buffer to indicate which bytes the callers have asked
+	 * to have logged.
+	 */
+	bip->bli_orig = (char *)kmem_alloc(XFS_BUF_COUNT(bp), KM_SLEEP);
+	memcpy(bip->bli_orig, XFS_BUF_PTR(bp), XFS_BUF_COUNT(bp));
+	bip->bli_logged = (char *)kmem_zalloc(XFS_BUF_COUNT(bp) / NBBY, KM_SLEEP);
+#endif
+
+	/*
+	 * Put the buf item into the list of items attached to the
+	 * buffer at the front.
+	 */
+	if (XFS_BUF_FSPRIVATE(bp, void *) != NULL) {
+		bip->bli_item.li_bio_list =
+				XFS_BUF_FSPRIVATE(bp, xfs_log_item_t *);
+	}
+	XFS_BUF_SET_FSPRIVATE(bp, bip);
+}
+
+
+/*
+ * Mark bytes first through last inclusive as dirty in the buf
+ * item's bitmap.
+ */
+void
+xfs_buf_item_log(
+	xfs_buf_log_item_t	*bip,
+	uint			first,
+	uint			last)
+{
+	uint		first_bit;
+	uint		last_bit;
+	uint		bits_to_set;
+	uint		bits_set;
+	uint		word_num;
+	uint		*wordp;
+	uint		bit;
+	uint		end_bit;
+	uint		mask;
+
+	/*
+	 * Mark the item as having some dirty data for
+	 * quick reference in xfs_buf_item_dirty.
+	 */
+	bip->bli_flags |= XFS_BLI_DIRTY;
+
+	/*
+	 * Convert byte offsets to bit numbers.
+	 */
+	first_bit = first >> XFS_BLI_SHIFT;
+	last_bit = last >> XFS_BLI_SHIFT;
+
+	/*
+	 * Calculate the total number of bits to be set.
+	 */
+	bits_to_set = last_bit - first_bit + 1;
+
+	/*
+	 * Get a pointer to the first word in the bitmap
+	 * to set a bit in.
+	 */
+	word_num = first_bit >> BIT_TO_WORD_SHIFT;
+	wordp = &(bip->bli_format.blf_data_map[word_num]);
+
+	/*
+	 * Calculate the starting bit in the first word.
+	 */
+	bit = first_bit & (uint)(NBWORD - 1);
+
+	/*
+	 * First set any bits in the first word of our range.
+	 * If it starts at bit 0 of the word, it will be
+	 * set below rather than here.  That is what the variable
+	 * bit tells us. The variable bits_set tracks the number
+	 * of bits that have been set so far.  End_bit is the number
+	 * of the last bit to be set in this word plus one.
+	 */
+	if (bit) {
+		end_bit = MIN(bit + bits_to_set, (uint)NBWORD);
+		mask = ((1 << (end_bit - bit)) - 1) << bit;
+		*wordp |= mask;
+		wordp++;
+		bits_set = end_bit - bit;
+	} else {
+		bits_set = 0;
+	}
+
+	/*
+	 * Now set bits a whole word at a time that are between
+	 * first_bit and last_bit.
+	 */
+	while ((bits_to_set - bits_set) >= NBWORD) {
+		*wordp |= 0xffffffff;
+		bits_set += NBWORD;
+		wordp++;
+	}
+
+	/*
+	 * Finally, set any bits left to be set in one last partial word.
+	 */
+	end_bit = bits_to_set - bits_set;
+	if (end_bit) {
+		mask = (1 << end_bit) - 1;
+		*wordp |= mask;
+	}
+
+	xfs_buf_item_log_debug(bip, first, last);
+}
+
+
+/*
+ * Return 1 if the buffer has some data that has been logged (at any
+ * point, not just the current transaction) and 0 if not.
+ */
+uint
+xfs_buf_item_dirty(
+	xfs_buf_log_item_t	*bip)
+{
+	return (bip->bli_flags & XFS_BLI_DIRTY);
+}
+
+/*
+ * This is called when the buf log item is no longer needed.  It should
+ * free the buf log item associated with the given buffer and clear
+ * the buffer's pointer to the buf log item.  If there are no more
+ * items in the list, clear the b_iodone field of the buffer (see
+ * xfs_buf_attach_iodone() below).
+ */
+void
+xfs_buf_item_relse(
+	xfs_buf_t	*bp)
+{
+	xfs_buf_log_item_t	*bip;
+
+	xfs_buftrace("XFS_RELSE", bp);
+	bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t*);
+	XFS_BUF_SET_FSPRIVATE(bp, bip->bli_item.li_bio_list);
+	if ((XFS_BUF_FSPRIVATE(bp, void *) == NULL) &&
+	    (XFS_BUF_IODONE_FUNC(bp) != NULL)) {
+		ASSERT((XFS_BUF_ISUNINITIAL(bp)) == 0);
+		XFS_BUF_CLR_IODONE_FUNC(bp);
+	}
+
+#ifdef XFS_TRANS_DEBUG
+	kmem_free(bip->bli_orig, XFS_BUF_COUNT(bp));
+	bip->bli_orig = NULL;
+	kmem_free(bip->bli_logged, XFS_BUF_COUNT(bp) / NBBY);
+	bip->bli_logged = NULL;
+#endif /* XFS_TRANS_DEBUG */
+
+#ifdef XFS_BLI_TRACE
+	ktrace_free(bip->bli_trace);
+#endif
+	kmem_zone_free(xfs_buf_item_zone, bip);
+}
+
+
+/*
+ * Add the given log item with its callback to the list of callbacks
+ * to be called when the buffer's I/O completes.  If it is not set
+ * already, set the buffer's b_iodone() routine to be
+ * xfs_buf_iodone_callbacks() and link the log item into the list of
+ * items rooted at b_fsprivate.  Items are always added as the second
+ * entry in the list if there is a first, because the buf item code
+ * assumes that the buf log item is first.
+ */
+void
+xfs_buf_attach_iodone(
+	xfs_buf_t	*bp,
+	void		(*cb)(xfs_buf_t *, xfs_log_item_t *),
+	xfs_log_item_t	*lip)
+{
+	xfs_log_item_t	*head_lip;
+
+	ASSERT(XFS_BUF_ISBUSY(bp));
+	ASSERT(XFS_BUF_VALUSEMA(bp) <= 0);
+
+	lip->li_cb = cb;
+	if (XFS_BUF_FSPRIVATE(bp, void *) != NULL) {
+		head_lip = XFS_BUF_FSPRIVATE(bp, xfs_log_item_t *);
+		lip->li_bio_list = head_lip->li_bio_list;
+		head_lip->li_bio_list = lip;
+	} else {
+		XFS_BUF_SET_FSPRIVATE(bp, lip);
+	}
+
+	ASSERT((XFS_BUF_IODONE_FUNC(bp) == xfs_buf_iodone_callbacks) ||
+	       (XFS_BUF_IODONE_FUNC(bp) == NULL));
+	XFS_BUF_SET_IODONE_FUNC(bp, xfs_buf_iodone_callbacks);
+}
+
+STATIC void
+xfs_buf_do_callbacks(
+	xfs_buf_t	*bp,
+	xfs_log_item_t	*lip)
+{
+	xfs_log_item_t	*nlip;
+
+	while (lip != NULL) {
+		nlip = lip->li_bio_list;
+		ASSERT(lip->li_cb != NULL);
+		/*
+		 * Clear the next pointer so we don't have any
+		 * confusion if the item is added to another buf.
+		 * Don't touch the log item after calling its
+		 * callback, because it could have freed itself.
+		 */
+		lip->li_bio_list = NULL;
+		lip->li_cb(bp, lip);
+		lip = nlip;
+	}
+}
+
+/*
+ * This is the iodone() function for buffers which have had callbacks
+ * attached to them by xfs_buf_attach_iodone().  It should remove each
+ * log item from the buffer's list and call the callback of each in turn.
+ * When done, the buffer's fsprivate field is set to NULL and the buffer
+ * is unlocked with a call to iodone().
+ */
+void
+xfs_buf_iodone_callbacks(
+	xfs_buf_t	*bp)
+{
+	xfs_log_item_t	*lip;
+	static ulong	lasttime;
+	static xfs_buftarg_t *lasttarg;
+	xfs_mount_t	*mp;
+
+	ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
+	lip = XFS_BUF_FSPRIVATE(bp, xfs_log_item_t *);
+
+	if (XFS_BUF_GETERROR(bp) != 0) {
+		/*
+		 * If we've already decided to shutdown the filesystem
+		 * because of IO errors, there's no point in giving this
+		 * a retry.
+		 */
+		mp = lip->li_mountp;
+		if (XFS_FORCED_SHUTDOWN(mp)) {
+			ASSERT(XFS_BUF_TARGET(bp) == mp->m_ddev_targp);
+			XFS_BUF_SUPER_STALE(bp);
+			xfs_buftrace("BUF_IODONE_CB", bp);
+			xfs_buf_do_callbacks(bp, lip);
+			XFS_BUF_SET_FSPRIVATE(bp, NULL);
+			XFS_BUF_CLR_IODONE_FUNC(bp);
+
+			/*
+			 * XFS_SHUT flag gets set when we go thru the
+			 * entire buffer cache and deliberately start
+			 * throwing away delayed write buffers.
+			 * Since there's no biowait done on those,
+			 * we should just brelse them.
+			 */
+			if (XFS_BUF_ISSHUT(bp)) {
+			    XFS_BUF_UNSHUT(bp);
+				xfs_buf_relse(bp);
+			} else {
+				xfs_biodone(bp);
+			}
+
+			return;
+		}
+
+		if ((XFS_BUF_TARGET(bp) != lasttarg) ||
+		    (time_after(jiffies, (lasttime + 5*HZ)))) {
+			lasttime = jiffies;
+			prdev("XFS write error in file system meta-data "
+			      "block 0x%llx in %s",
+			      XFS_BUF_TARGET(bp),
+			      (__uint64_t)XFS_BUF_ADDR(bp), mp->m_fsname);
+		}
+		lasttarg = XFS_BUF_TARGET(bp);
+
+		if (XFS_BUF_ISASYNC(bp)) {
+			/*
+			 * If the write was asynchronous then noone will be
+			 * looking for the error.  Clear the error state
+			 * and write the buffer out again delayed write.
+			 *
+			 * XXXsup This is OK, so long as we catch these
+			 * before we start the umount; we don't want these
+			 * DELWRI metadata bufs to be hanging around.
+			 */
+			XFS_BUF_ERROR(bp,0); /* errno of 0 unsets the flag */
+
+			if (!(XFS_BUF_ISSTALE(bp))) {
+				XFS_BUF_DELAYWRITE(bp);
+				XFS_BUF_DONE(bp);
+				XFS_BUF_SET_START(bp);
+			}
+			ASSERT(XFS_BUF_IODONE_FUNC(bp));
+			xfs_buftrace("BUF_IODONE ASYNC", bp);
+			xfs_buf_relse(bp);
+		} else {
+			/*
+			 * If the write of the buffer was not asynchronous,
+			 * then we want to make sure to return the error
+			 * to the caller of bwrite().  Because of this we
+			 * cannot clear the B_ERROR state at this point.
+			 * Instead we install a callback function that
+			 * will be called when the buffer is released, and
+			 * that routine will clear the error state and
+			 * set the buffer to be written out again after
+			 * some delay.
+			 */
+			/* We actually overwrite the existing b-relse
+			   function at times, but we're gonna be shutting down
+			   anyway. */
+			XFS_BUF_SET_BRELSE_FUNC(bp,xfs_buf_error_relse);
+			XFS_BUF_DONE(bp);
+			XFS_BUF_V_IODONESEMA(bp);
+		}
+		return;
+	}
+#ifdef XFSERRORDEBUG
+	xfs_buftrace("XFS BUFCB NOERR", bp);
+#endif
+	xfs_buf_do_callbacks(bp, lip);
+	XFS_BUF_SET_FSPRIVATE(bp, NULL);
+	XFS_BUF_CLR_IODONE_FUNC(bp);
+	xfs_biodone(bp);
+}
+
+/*
+ * This is a callback routine attached to a buffer which gets an error
+ * when being written out synchronously.
+ */
+STATIC void
+xfs_buf_error_relse(
+	xfs_buf_t	*bp)
+{
+	xfs_log_item_t	*lip;
+	xfs_mount_t	*mp;
+
+	lip = XFS_BUF_FSPRIVATE(bp, xfs_log_item_t *);
+	mp = (xfs_mount_t *)lip->li_mountp;
+	ASSERT(XFS_BUF_TARGET(bp) == mp->m_ddev_targp);
+
+	XFS_BUF_STALE(bp);
+	XFS_BUF_DONE(bp);
+	XFS_BUF_UNDELAYWRITE(bp);
+	XFS_BUF_ERROR(bp,0);
+	xfs_buftrace("BUF_ERROR_RELSE", bp);
+	if (! XFS_FORCED_SHUTDOWN(mp))
+		xfs_force_shutdown(mp, XFS_METADATA_IO_ERROR);
+	/*
+	 * We have to unpin the pinned buffers so do the
+	 * callbacks.
+	 */
+	xfs_buf_do_callbacks(bp, lip);
+	XFS_BUF_SET_FSPRIVATE(bp, NULL);
+	XFS_BUF_CLR_IODONE_FUNC(bp);
+	XFS_BUF_SET_BRELSE_FUNC(bp,NULL);
+	xfs_buf_relse(bp);
+}
+
+
+/*
+ * This is the iodone() function for buffers which have been
+ * logged.  It is called when they are eventually flushed out.
+ * It should remove the buf item from the AIL, and free the buf item.
+ * It is called by xfs_buf_iodone_callbacks() above which will take
+ * care of cleaning up the buffer itself.
+ */
+/* ARGSUSED */
+void
+xfs_buf_iodone(
+	xfs_buf_t		*bp,
+	xfs_buf_log_item_t	*bip)
+{
+	struct xfs_mount	*mp;
+	SPLDECL(s);
+
+	ASSERT(bip->bli_buf == bp);
+
+	mp = bip->bli_item.li_mountp;
+
+	/*
+	 * If we are forcibly shutting down, this may well be
+	 * off the AIL already. That's because we simulate the
+	 * log-committed callbacks to unpin these buffers. Or we may never
+	 * have put this item on AIL because of the transaction was
+	 * aborted forcibly. xfs_trans_delete_ail() takes care of these.
+	 *
+	 * Either way, AIL is useless if we're forcing a shutdown.
+	 */
+	AIL_LOCK(mp,s);
+	/*
+	 * xfs_trans_delete_ail() drops the AIL lock.
+	 */
+	xfs_trans_delete_ail(mp, (xfs_log_item_t *)bip, s);
+
+#ifdef XFS_TRANS_DEBUG
+	kmem_free(bip->bli_orig, XFS_BUF_COUNT(bp));
+	bip->bli_orig = NULL;
+	kmem_free(bip->bli_logged, XFS_BUF_COUNT(bp) / NBBY);
+	bip->bli_logged = NULL;
+#endif /* XFS_TRANS_DEBUG */
+
+#ifdef XFS_BLI_TRACE
+	ktrace_free(bip->bli_trace);
+#endif
+	kmem_zone_free(xfs_buf_item_zone, bip);
+}
+
+#if defined(XFS_BLI_TRACE)
+void
+xfs_buf_item_trace(
+	char			*id,
+	xfs_buf_log_item_t	*bip)
+{
+	xfs_buf_t		*bp;
+	ASSERT(bip->bli_trace != NULL);
+
+	bp = bip->bli_buf;
+	ktrace_enter(bip->bli_trace,
+		     (void *)id,
+		     (void *)bip->bli_buf,
+		     (void *)((unsigned long)bip->bli_flags),
+		     (void *)((unsigned long)bip->bli_recur),
+		     (void *)((unsigned long)atomic_read(&bip->bli_refcount)),
+		     (void *)((unsigned long)
+				(0xFFFFFFFF & XFS_BUF_ADDR(bp) >> 32)),
+		     (void *)((unsigned long)(0xFFFFFFFF & XFS_BUF_ADDR(bp))),
+		     (void *)((unsigned long)XFS_BUF_COUNT(bp)),
+		     (void *)((unsigned long)XFS_BUF_BFLAGS(bp)),
+		     XFS_BUF_FSPRIVATE(bp, void *),
+		     XFS_BUF_FSPRIVATE2(bp, void *),
+		     (void *)(unsigned long)XFS_BUF_ISPINNED(bp),
+		     (void *)XFS_BUF_IODONE_FUNC(bp),
+		     (void *)((unsigned long)(XFS_BUF_VALUSEMA(bp))),
+		     (void *)bip->bli_item.li_desc,
+		     (void *)((unsigned long)bip->bli_item.li_flags));
+}
+#endif /* XFS_BLI_TRACE */
diff --git a/fs/xfs/xfs_buf_item.h b/fs/xfs/xfs_buf_item.h
new file mode 100644
index 00000000000000..5f1b0c9308f672
--- /dev/null
+++ b/fs/xfs/xfs_buf_item.h
@@ -0,0 +1,171 @@
+/*
+ * Copyright (c) 2000-2001 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef	__XFS_BUF_ITEM_H__
+#define	__XFS_BUF_ITEM_H__
+
+/*
+ * This is the structure used to lay out a buf log item in the
+ * log.  The data map describes which 128 byte chunks of the buffer
+ * have been logged.  This structure works only on buffers that
+ * reside up to the first TB in the filesystem.  These buffers are
+ * generated only by pre-6.2 systems and are known as XFS_LI_6_1_BUF.
+ */
+typedef struct xfs_buf_log_format_v1 {
+	unsigned short	blf_type;	/* buf log item type indicator */
+	unsigned short	blf_size;	/* size of this item */
+	__int32_t	blf_blkno;	/* starting blkno of this buf */
+	ushort		blf_flags;	/* misc state */
+	ushort		blf_len;	/* number of blocks in this buf */
+	unsigned int	blf_map_size;	/* size of data bitmap in words */
+	unsigned int	blf_data_map[1];/* variable size bitmap of */
+					/*   regions of buffer in this item */
+} xfs_buf_log_format_v1_t;
+
+/*
+ * This is a form of the above structure with a 64 bit blkno field.
+ * For 6.2 and beyond, this is XFS_LI_BUF.  We use this to log everything.
+ */
+typedef struct xfs_buf_log_format_t {
+	unsigned short	blf_type;	/* buf log item type indicator */
+	unsigned short	blf_size;	/* size of this item */
+	ushort		blf_flags;	/* misc state */
+	ushort		blf_len;	/* number of blocks in this buf */
+	__int64_t	blf_blkno;	/* starting blkno of this buf */
+	unsigned int	blf_map_size;	/* size of data bitmap in words */
+	unsigned int	blf_data_map[1];/* variable size bitmap of */
+					/*   regions of buffer in this item */
+} xfs_buf_log_format_t;
+
+/*
+ * This flag indicates that the buffer contains on disk inodes
+ * and requires special recovery handling.
+ */
+#define	XFS_BLI_INODE_BUF	0x1
+/*
+ * This flag indicates that the buffer should not be replayed
+ * during recovery because its blocks are being freed.
+ */
+#define	XFS_BLI_CANCEL		0x2
+/*
+ * This flag indicates that the buffer contains on disk
+ * user or group dquots and may require special recovery handling.
+ */
+#define	XFS_BLI_UDQUOT_BUF	0x4
+/* #define XFS_BLI_PDQUOT_BUF	0x8 */
+#define	XFS_BLI_GDQUOT_BUF	0x10
+
+#define	XFS_BLI_CHUNK		128
+#define	XFS_BLI_SHIFT		7
+#define	BIT_TO_WORD_SHIFT	5
+#define	NBWORD			(NBBY * sizeof(unsigned int))
+
+/*
+ * buf log item flags
+ */
+#define	XFS_BLI_HOLD		0x01
+#define	XFS_BLI_DIRTY		0x02
+#define	XFS_BLI_STALE		0x04
+#define	XFS_BLI_LOGGED		0x08
+#define	XFS_BLI_INODE_ALLOC_BUF	0x10
+#define XFS_BLI_STALE_INODE	0x20
+
+
+#ifdef __KERNEL__
+
+struct xfs_buf;
+struct ktrace;
+struct xfs_mount;
+struct xfs_buf_log_item;
+
+#if defined(XFS_BLI_TRACE)
+#define	XFS_BLI_TRACE_SIZE	32
+
+void	xfs_buf_item_trace(char *, struct xfs_buf_log_item *);
+#else
+#define	xfs_buf_item_trace(id, bip)
+#endif
+
+/*
+ * This is the in core log item structure used to track information
+ * needed to log buffers.  It tracks how many times the lock has been
+ * locked, and which 128 byte chunks of the buffer are dirty.
+ */
+typedef struct xfs_buf_log_item {
+	xfs_log_item_t		bli_item;	/* common item structure */
+	struct xfs_buf		*bli_buf;	/* real buffer pointer */
+	unsigned int		bli_flags;	/* misc flags */
+	unsigned int		bli_recur;	/* lock recursion count */
+	atomic_t		bli_refcount;	/* cnt of tp refs */
+#ifdef XFS_BLI_TRACE
+	struct ktrace		*bli_trace;	/* event trace buf */
+#endif
+#ifdef XFS_TRANS_DEBUG
+	char			*bli_orig;	/* original buffer copy */
+	char			*bli_logged;	/* bytes logged (bitmap) */
+#endif
+	xfs_buf_log_format_t	bli_format;	/* in-log header */
+} xfs_buf_log_item_t;
+
+/*
+ * This structure is used during recovery to record the buf log
+ * items which have been canceled and should not be replayed.
+ */
+typedef struct xfs_buf_cancel {
+	xfs_daddr_t		bc_blkno;
+	uint			bc_len;
+	int			bc_refcount;
+	struct xfs_buf_cancel	*bc_next;
+} xfs_buf_cancel_t;
+
+void	xfs_buf_item_init(struct xfs_buf *, struct xfs_mount *);
+void	xfs_buf_item_relse(struct xfs_buf *);
+void	xfs_buf_item_log(xfs_buf_log_item_t *, uint, uint);
+uint	xfs_buf_item_dirty(xfs_buf_log_item_t *);
+void	xfs_buf_attach_iodone(struct xfs_buf *,
+			      void(*)(struct xfs_buf *, xfs_log_item_t *),
+			      xfs_log_item_t *);
+void	xfs_buf_iodone_callbacks(struct xfs_buf *);
+void	xfs_buf_iodone(struct xfs_buf *, xfs_buf_log_item_t *);
+
+#ifdef XFS_TRANS_DEBUG
+void
+xfs_buf_item_flush_log_debug(
+	struct xfs_buf *bp,
+	uint	first,
+	uint	last);
+#else
+#define	xfs_buf_item_flush_log_debug(bp, first, last)
+#endif
+
+#endif	/* __KERNEL__ */
+
+#endif	/* __XFS_BUF_ITEM_H__ */
diff --git a/fs/xfs/xfs_cap.h b/fs/xfs/xfs_cap.h
new file mode 100644
index 00000000000000..2deac730375844
--- /dev/null
+++ b/fs/xfs/xfs_cap.h
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_CAP_H__
+#define __XFS_CAP_H__
+
+/*
+ * Capabilities
+ */
+typedef __uint64_t xfs_cap_value_t;
+
+typedef struct xfs_cap_set {
+	xfs_cap_value_t	cap_effective;	/* use in capability checks */
+	xfs_cap_value_t	cap_permitted;	/* combined with file attrs */
+	xfs_cap_value_t	cap_inheritable;/* pass through exec */
+} xfs_cap_set_t;
+
+/* On-disk XFS extended attribute names */
+#define SGI_CAP_FILE	"SGI_CAP_FILE"
+#define SGI_CAP_FILE_SIZE	(sizeof(SGI_CAP_FILE)-1)
+#define SGI_CAP_LINUX	"SGI_CAP_LINUX"
+#define SGI_CAP_LINUX_SIZE	(sizeof(SGI_CAP_LINUX)-1)
+
+/*
+ * For Linux, we take the bitfields directly from capability.h
+ * and no longer attempt to keep this attribute ondisk compatible
+ * with IRIX.  Since this attribute is only set on exectuables,
+ * it just doesn't make much sense to try.  We do use a different
+ * named attribute though, to avoid confusion.
+ */
+
+#ifdef __KERNEL__
+
+#ifdef CONFIG_FS_POSIX_CAP
+
+#include <linux/posix_cap_xattr.h>
+
+struct vnode;
+
+extern int xfs_cap_vhascap(struct vnode *);
+extern int xfs_cap_vset(struct vnode *, void *, size_t);
+extern int xfs_cap_vget(struct vnode *, void *, size_t);
+extern int xfs_cap_vremove(struct vnode *vp);
+
+#define _CAP_EXISTS		xfs_cap_vhascap
+
+#else
+#define xfs_cap_vset(v,p,sz)	(-EOPNOTSUPP)
+#define xfs_cap_vget(v,p,sz)	(-EOPNOTSUPP)
+#define xfs_cap_vremove(v)	(-EOPNOTSUPP)
+#define _CAP_EXISTS		(NULL)
+#endif
+
+#endif	/* __KERNEL__ */
+
+#endif  /* __XFS_CAP_H__ */
diff --git a/fs/xfs/xfs_clnt.h b/fs/xfs/xfs_clnt.h
new file mode 100644
index 00000000000000..4a49cde9b857d7
--- /dev/null
+++ b/fs/xfs/xfs_clnt.h
@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_CLNT_H__
+#define __XFS_CLNT_H__
+
+/*
+ * XFS arguments structure, constructed from the arguments we
+ * are passed via the mount system call.
+ *
+ * NOTE: The mount system call is handled differently between
+ * Linux and IRIX.  In IRIX we worked work with a binary data
+ * structure coming in across the syscall interface from user
+ * space (the mount userspace knows about each filesystem type
+ * and the set of valid options for it, and converts the users
+ * argument string into a binary structure _before_ making the
+ * system call), and the ABI issues that this implies.
+ *
+ * In Linux, we are passed a comma separated set of options;
+ * ie. a NULL terminated string of characters.  Userspace mount
+ * code does not have any knowledge of mount options expected by
+ * each filesystem type and so each filesystem parses its mount
+ * options in kernel space.
+ *
+ * For the Linux port, we kept this structure pretty much intact
+ * and use it internally (because the existing code groks it).
+ */
+struct xfs_mount_args {
+	int	flags;		/* flags -> see XFSMNT_... macros below */
+	int	logbufs;	/* Number of log buffers, -1 to default */
+	int	logbufsize;	/* Size of log buffers, -1 to default */
+	char	fsname[MAXNAMELEN+1];	/* data device name */
+	char	rtname[MAXNAMELEN+1];	/* realtime device filename */
+	char	logname[MAXNAMELEN+1];	/* journal device filename */
+	char	mtpt[MAXNAMELEN+1];	/* filesystem mount point */
+	int	sunit;		/* stripe unit (BBs) */
+	int	swidth;		/* stripe width (BBs), multiple of sunit */
+	uchar_t iosizelog;	/* log2 of the preferred I/O size */
+};
+
+/*
+ * XFS mount option flags
+ */
+#define	XFSMNT_CHKLOG		0x00000001	/* check log */
+#define	XFSMNT_WSYNC		0x00000002	/* safe mode nfs mount
+						 * compatible */
+#define	XFSMNT_INO64		0x00000004	/* move inode numbers up
+						 * past 2^32 */
+#define XFSMNT_UQUOTA		0x00000008	/* user quota accounting */
+#define XFSMNT_PQUOTA		0x00000010	/* IRIX prj quota accounting */
+#define XFSMNT_UQUOTAENF	0x00000020	/* user quota limit
+						 * enforcement */
+#define XFSMNT_PQUOTAENF	0x00000040	/* IRIX project quota limit
+						 * enforcement */
+#define XFSMNT_NOATIME		0x00000100	/* don't modify access
+						 * times on reads */
+#define XFSMNT_NOALIGN		0x00000200	/* don't allocate at
+						 * stripe boundaries*/
+#define XFSMNT_RETERR		0x00000400	/* return error to user */
+#define XFSMNT_NORECOVERY	0x00000800	/* no recovery, implies
+						 * read-only mount */
+#define XFSMNT_SHARED		0x00001000	/* shared XFS mount */
+#define XFSMNT_IOSIZE		0x00002000	/* optimize for I/O size */
+#define XFSMNT_OSYNCISOSYNC	0x00004000	/* o_sync is REALLY o_sync */
+						/* (osyncisdsync is now default) */
+#define XFSMNT_32BITINODES	0x00200000	/* restrict inodes to 32
+						 * bits of address space */
+#define XFSMNT_GQUOTA		0x00400000	/* group quota accounting */
+#define XFSMNT_GQUOTAENF	0x00800000	/* group quota limit
+						 * enforcement */
+#define XFSMNT_NOUUID		0x01000000	/* Ignore fs uuid */
+#define XFSMNT_DMAPI		0x02000000	/* enable dmapi/xdsm */
+#define XFSMNT_NOLOGFLUSH	0x04000000	/* Don't flush for log blocks */
+#define XFSMNT_IDELETE		0x08000000	/* inode cluster delete */
+#define XFSMNT_SWALLOC		0x10000000	/* turn on stripe width
+						 * allocation */
+
+#endif	/* __XFS_CLNT_H__ */
diff --git a/fs/xfs/xfs_da_btree.c b/fs/xfs/xfs_da_btree.c
new file mode 100644
index 00000000000000..bbe00dc550d656
--- /dev/null
+++ b/fs/xfs/xfs_da_btree.c
@@ -0,0 +1,2650 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_alloc.h"
+#include "xfs_btree.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode_item.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_da_btree.h"
+#include "xfs_attr.h"
+#include "xfs_attr_leaf.h"
+#include "xfs_dir_leaf.h"
+#include "xfs_dir2_data.h"
+#include "xfs_dir2_leaf.h"
+#include "xfs_dir2_block.h"
+#include "xfs_dir2_node.h"
+#include "xfs_error.h"
+#include "xfs_bit.h"
+
+/*
+ * xfs_da_btree.c
+ *
+ * Routines to implement directories as Btrees of hashed names.
+ */
+
+/*========================================================================
+ * Function prototypes for the kernel.
+ *========================================================================*/
+
+/*
+ * Routines used for growing the Btree.
+ */
+STATIC int xfs_da_root_split(xfs_da_state_t *state,
+					    xfs_da_state_blk_t *existing_root,
+					    xfs_da_state_blk_t *new_child);
+STATIC int xfs_da_node_split(xfs_da_state_t *state,
+					    xfs_da_state_blk_t *existing_blk,
+					    xfs_da_state_blk_t *split_blk,
+					    xfs_da_state_blk_t *blk_to_add,
+					    int treelevel,
+					    int *result);
+STATIC void xfs_da_node_rebalance(xfs_da_state_t *state,
+					 xfs_da_state_blk_t *node_blk_1,
+					 xfs_da_state_blk_t *node_blk_2);
+STATIC void xfs_da_node_add(xfs_da_state_t *state,
+				   xfs_da_state_blk_t *old_node_blk,
+				   xfs_da_state_blk_t *new_node_blk);
+
+/*
+ * Routines used for shrinking the Btree.
+ */
+STATIC int xfs_da_root_join(xfs_da_state_t *state,
+					   xfs_da_state_blk_t *root_blk);
+STATIC int xfs_da_node_toosmall(xfs_da_state_t *state, int *retval);
+STATIC void xfs_da_node_remove(xfs_da_state_t *state,
+					      xfs_da_state_blk_t *drop_blk);
+STATIC void xfs_da_node_unbalance(xfs_da_state_t *state,
+					 xfs_da_state_blk_t *src_node_blk,
+					 xfs_da_state_blk_t *dst_node_blk);
+
+/*
+ * Utility routines.
+ */
+STATIC uint	xfs_da_node_lasthash(xfs_dabuf_t *bp, int *count);
+STATIC int	xfs_da_node_order(xfs_dabuf_t *node1_bp, xfs_dabuf_t *node2_bp);
+STATIC xfs_dabuf_t *xfs_da_buf_make(int nbuf, xfs_buf_t **bps, inst_t *ra);
+
+
+/*========================================================================
+ * Routines used for growing the Btree.
+ *========================================================================*/
+
+/*
+ * Create the initial contents of an intermediate node.
+ */
+int
+xfs_da_node_create(xfs_da_args_t *args, xfs_dablk_t blkno, int level,
+				 xfs_dabuf_t **bpp, int whichfork)
+{
+	xfs_da_intnode_t *node;
+	xfs_dabuf_t *bp;
+	int error;
+	xfs_trans_t *tp;
+
+	tp = args->trans;
+	error = xfs_da_get_buf(tp, args->dp, blkno, -1, &bp, whichfork);
+	if (error)
+		return(error);
+	ASSERT(bp != NULL);
+	node = bp->data;
+	INT_ZERO(node->hdr.info.forw, ARCH_CONVERT);
+	INT_ZERO(node->hdr.info.back, ARCH_CONVERT);
+	INT_SET(node->hdr.info.magic, ARCH_CONVERT, XFS_DA_NODE_MAGIC);
+	INT_ZERO(node->hdr.info.pad, ARCH_CONVERT);
+	INT_ZERO(node->hdr.count, ARCH_CONVERT);
+	INT_SET(node->hdr.level, ARCH_CONVERT, level);
+
+	xfs_da_log_buf(tp, bp,
+		XFS_DA_LOGRANGE(node, &node->hdr, sizeof(node->hdr)));
+
+	*bpp = bp;
+	return(0);
+}
+
+/*
+ * Split a leaf node, rebalance, then possibly split
+ * intermediate nodes, rebalance, etc.
+ */
+int							/* error */
+xfs_da_split(xfs_da_state_t *state)
+{
+	xfs_da_state_blk_t *oldblk, *newblk, *addblk;
+	xfs_da_intnode_t *node;
+	xfs_dabuf_t *bp;
+	int max, action, error, i;
+
+	/*
+	 * Walk back up the tree splitting/inserting/adjusting as necessary.
+	 * If we need to insert and there isn't room, split the node, then
+	 * decide which fragment to insert the new block from below into.
+	 * Note that we may split the root this way, but we need more fixup.
+	 */
+	max = state->path.active - 1;
+	ASSERT((max >= 0) && (max < XFS_DA_NODE_MAXDEPTH));
+	ASSERT(state->path.blk[max].magic == XFS_ATTR_LEAF_MAGIC ||
+	       state->path.blk[max].magic == XFS_DIRX_LEAF_MAGIC(state->mp));
+
+	addblk = &state->path.blk[max];		/* initial dummy value */
+	for (i = max; (i >= 0) && addblk; state->path.active--, i--) {
+		oldblk = &state->path.blk[i];
+		newblk = &state->altpath.blk[i];
+
+		/*
+		 * If a leaf node then
+		 *     Allocate a new leaf node, then rebalance across them.
+		 * else if an intermediate node then
+		 *     We split on the last layer, must we split the node?
+		 */
+		switch (oldblk->magic) {
+		case XFS_ATTR_LEAF_MAGIC:
+#ifndef __KERNEL__
+			return(ENOTTY);
+#else
+			error = xfs_attr_leaf_split(state, oldblk, newblk);
+			if ((error != 0) && (error != ENOSPC)) {
+				return(error);	/* GROT: attr is inconsistent */
+			}
+			if (!error) {
+				addblk = newblk;
+				break;
+			}
+			/*
+			 * Entry wouldn't fit, split the leaf again.
+			 */
+			state->extravalid = 1;
+			if (state->inleaf) {
+				state->extraafter = 0;	/* before newblk */
+				error = xfs_attr_leaf_split(state, oldblk,
+							    &state->extrablk);
+			} else {
+				state->extraafter = 1;	/* after newblk */
+				error = xfs_attr_leaf_split(state, newblk,
+							    &state->extrablk);
+			}
+			if (error)
+				return(error);	/* GROT: attr inconsistent */
+			addblk = newblk;
+			break;
+#endif
+		case XFS_DIR_LEAF_MAGIC:
+			ASSERT(XFS_DIR_IS_V1(state->mp));
+			error = xfs_dir_leaf_split(state, oldblk, newblk);
+			if ((error != 0) && (error != ENOSPC)) {
+				return(error);	/* GROT: dir is inconsistent */
+			}
+			if (!error) {
+				addblk = newblk;
+				break;
+			}
+			/*
+			 * Entry wouldn't fit, split the leaf again.
+			 */
+			state->extravalid = 1;
+			if (state->inleaf) {
+				state->extraafter = 0;	/* before newblk */
+				error = xfs_dir_leaf_split(state, oldblk,
+							   &state->extrablk);
+				if (error)
+					return(error);	/* GROT: dir incon. */
+				addblk = newblk;
+			} else {
+				state->extraafter = 1;	/* after newblk */
+				error = xfs_dir_leaf_split(state, newblk,
+							   &state->extrablk);
+				if (error)
+					return(error);	/* GROT: dir incon. */
+				addblk = newblk;
+			}
+			break;
+		case XFS_DIR2_LEAFN_MAGIC:
+			ASSERT(XFS_DIR_IS_V2(state->mp));
+			error = xfs_dir2_leafn_split(state, oldblk, newblk);
+			if (error)
+				return error;
+			addblk = newblk;
+			break;
+		case XFS_DA_NODE_MAGIC:
+			error = xfs_da_node_split(state, oldblk, newblk, addblk,
+							 max - i, &action);
+			xfs_da_buf_done(addblk->bp);
+			addblk->bp = NULL;
+			if (error)
+				return(error);	/* GROT: dir is inconsistent */
+			/*
+			 * Record the newly split block for the next time thru?
+			 */
+			if (action)
+				addblk = newblk;
+			else
+				addblk = NULL;
+			break;
+		}
+
+		/*
+		 * Update the btree to show the new hashval for this child.
+		 */
+		xfs_da_fixhashpath(state, &state->path);
+		/*
+		 * If we won't need this block again, it's getting dropped
+		 * from the active path by the loop control, so we need
+		 * to mark it done now.
+		 */
+		if (i > 0 || !addblk)
+			xfs_da_buf_done(oldblk->bp);
+	}
+	if (!addblk)
+		return(0);
+
+	/*
+	 * Split the root node.
+	 */
+	ASSERT(state->path.active == 0);
+	oldblk = &state->path.blk[0];
+	error = xfs_da_root_split(state, oldblk, addblk);
+	if (error) {
+		xfs_da_buf_done(oldblk->bp);
+		xfs_da_buf_done(addblk->bp);
+		addblk->bp = NULL;
+		return(error);	/* GROT: dir is inconsistent */
+	}
+
+	/*
+	 * Update pointers to the node which used to be block 0 and
+	 * just got bumped because of the addition of a new root node.
+	 * There might be three blocks involved if a double split occurred,
+	 * and the original block 0 could be at any position in the list.
+	 */
+
+	node = oldblk->bp->data;
+	if (!INT_ISZERO(node->hdr.info.forw, ARCH_CONVERT)) {
+		if (INT_GET(node->hdr.info.forw, ARCH_CONVERT) == addblk->blkno) {
+			bp = addblk->bp;
+		} else {
+			ASSERT(state->extravalid);
+			bp = state->extrablk.bp;
+		}
+		node = bp->data;
+		INT_SET(node->hdr.info.back, ARCH_CONVERT, oldblk->blkno);
+		xfs_da_log_buf(state->args->trans, bp,
+		    XFS_DA_LOGRANGE(node, &node->hdr.info,
+		    sizeof(node->hdr.info)));
+	}
+	node = oldblk->bp->data;
+	if (INT_GET(node->hdr.info.back, ARCH_CONVERT)) {
+		if (INT_GET(node->hdr.info.back, ARCH_CONVERT) == addblk->blkno) {
+			bp = addblk->bp;
+		} else {
+			ASSERT(state->extravalid);
+			bp = state->extrablk.bp;
+		}
+		node = bp->data;
+		INT_SET(node->hdr.info.forw, ARCH_CONVERT, oldblk->blkno);
+		xfs_da_log_buf(state->args->trans, bp,
+		    XFS_DA_LOGRANGE(node, &node->hdr.info,
+		    sizeof(node->hdr.info)));
+	}
+	xfs_da_buf_done(oldblk->bp);
+	xfs_da_buf_done(addblk->bp);
+	addblk->bp = NULL;
+	return(0);
+}
+
+/*
+ * Split the root.  We have to create a new root and point to the two
+ * parts (the split old root) that we just created.  Copy block zero to
+ * the EOF, extending the inode in process.
+ */
+STATIC int						/* error */
+xfs_da_root_split(xfs_da_state_t *state, xfs_da_state_blk_t *blk1,
+				 xfs_da_state_blk_t *blk2)
+{
+	xfs_da_intnode_t *node, *oldroot;
+	xfs_da_args_t *args;
+	xfs_dablk_t blkno;
+	xfs_dabuf_t *bp;
+	int error, size;
+	xfs_inode_t *dp;
+	xfs_trans_t *tp;
+	xfs_mount_t *mp;
+	xfs_dir2_leaf_t *leaf;
+
+	/*
+	 * Copy the existing (incorrect) block from the root node position
+	 * to a free space somewhere.
+	 */
+	args = state->args;
+	ASSERT(args != NULL);
+	error = xfs_da_grow_inode(args, &blkno);
+	if (error)
+		return(error);
+	dp = args->dp;
+	tp = args->trans;
+	mp = state->mp;
+	error = xfs_da_get_buf(tp, dp, blkno, -1, &bp, args->whichfork);
+	if (error)
+		return(error);
+	ASSERT(bp != NULL);
+	node = bp->data;
+	oldroot = blk1->bp->data;
+	if (INT_GET(oldroot->hdr.info.magic, ARCH_CONVERT) == XFS_DA_NODE_MAGIC) {
+		size = (int)((char *)&oldroot->btree[INT_GET(oldroot->hdr.count, ARCH_CONVERT)] -
+			     (char *)oldroot);
+	} else {
+		ASSERT(XFS_DIR_IS_V2(mp));
+		ASSERT(INT_GET(oldroot->hdr.info.magic, ARCH_CONVERT) == XFS_DIR2_LEAFN_MAGIC);
+		leaf = (xfs_dir2_leaf_t *)oldroot;
+		size = (int)((char *)&leaf->ents[INT_GET(leaf->hdr.count, ARCH_CONVERT)] -
+			     (char *)leaf);
+	}
+	memcpy(node, oldroot, size);
+	xfs_da_log_buf(tp, bp, 0, size - 1);
+	xfs_da_buf_done(blk1->bp);
+	blk1->bp = bp;
+	blk1->blkno = blkno;
+
+	/*
+	 * Set up the new root node.
+	 */
+	error = xfs_da_node_create(args,
+		args->whichfork == XFS_DATA_FORK &&
+		XFS_DIR_IS_V2(mp) ? mp->m_dirleafblk : 0,
+		INT_GET(node->hdr.level, ARCH_CONVERT) + 1, &bp, args->whichfork);
+	if (error)
+		return(error);
+	node = bp->data;
+	INT_SET(node->btree[0].hashval, ARCH_CONVERT, blk1->hashval);
+	INT_SET(node->btree[0].before, ARCH_CONVERT, blk1->blkno);
+	INT_SET(node->btree[1].hashval, ARCH_CONVERT, blk2->hashval);
+	INT_SET(node->btree[1].before, ARCH_CONVERT, blk2->blkno);
+	INT_SET(node->hdr.count, ARCH_CONVERT, 2);
+
+#ifdef DEBUG
+	if (INT_GET(oldroot->hdr.info.magic, ARCH_CONVERT) == XFS_DIR2_LEAFN_MAGIC) {
+		ASSERT(blk1->blkno >= mp->m_dirleafblk &&
+		       blk1->blkno < mp->m_dirfreeblk);
+		ASSERT(blk2->blkno >= mp->m_dirleafblk &&
+		       blk2->blkno < mp->m_dirfreeblk);
+	}
+#endif
+
+	/* Header is already logged by xfs_da_node_create */
+	xfs_da_log_buf(tp, bp,
+		XFS_DA_LOGRANGE(node, node->btree,
+			sizeof(xfs_da_node_entry_t) * 2));
+	xfs_da_buf_done(bp);
+
+	return(0);
+}
+
+/*
+ * Split the node, rebalance, then add the new entry.
+ */
+STATIC int						/* error */
+xfs_da_node_split(xfs_da_state_t *state, xfs_da_state_blk_t *oldblk,
+				 xfs_da_state_blk_t *newblk,
+				 xfs_da_state_blk_t *addblk,
+				 int treelevel, int *result)
+{
+	xfs_da_intnode_t *node;
+	xfs_dablk_t blkno;
+	int newcount, error;
+	int useextra;
+
+	node = oldblk->bp->data;
+	ASSERT(INT_GET(node->hdr.info.magic, ARCH_CONVERT) == XFS_DA_NODE_MAGIC);
+
+	/*
+	 * With V2 the extra block is data or freespace.
+	 */
+	useextra = state->extravalid && XFS_DIR_IS_V1(state->mp);
+	newcount = 1 + useextra;
+	/*
+	 * Do we have to split the node?
+	 */
+	if ((INT_GET(node->hdr.count, ARCH_CONVERT) + newcount) > state->node_ents) {
+		/*
+		 * Allocate a new node, add to the doubly linked chain of
+		 * nodes, then move some of our excess entries into it.
+		 */
+		error = xfs_da_grow_inode(state->args, &blkno);
+		if (error)
+			return(error);	/* GROT: dir is inconsistent */
+
+		error = xfs_da_node_create(state->args, blkno, treelevel,
+					   &newblk->bp, state->args->whichfork);
+		if (error)
+			return(error);	/* GROT: dir is inconsistent */
+		newblk->blkno = blkno;
+		newblk->magic = XFS_DA_NODE_MAGIC;
+		xfs_da_node_rebalance(state, oldblk, newblk);
+		error = xfs_da_blk_link(state, oldblk, newblk);
+		if (error)
+			return(error);
+		*result = 1;
+	} else {
+		*result = 0;
+	}
+
+	/*
+	 * Insert the new entry(s) into the correct block
+	 * (updating last hashval in the process).
+	 *
+	 * xfs_da_node_add() inserts BEFORE the given index,
+	 * and as a result of using node_lookup_int() we always
+	 * point to a valid entry (not after one), but a split
+	 * operation always results in a new block whose hashvals
+	 * FOLLOW the current block.
+	 *
+	 * If we had double-split op below us, then add the extra block too.
+	 */
+	node = oldblk->bp->data;
+	if (oldblk->index <= INT_GET(node->hdr.count, ARCH_CONVERT)) {
+		oldblk->index++;
+		xfs_da_node_add(state, oldblk, addblk);
+		if (useextra) {
+			if (state->extraafter)
+				oldblk->index++;
+			xfs_da_node_add(state, oldblk, &state->extrablk);
+			state->extravalid = 0;
+		}
+	} else {
+		newblk->index++;
+		xfs_da_node_add(state, newblk, addblk);
+		if (useextra) {
+			if (state->extraafter)
+				newblk->index++;
+			xfs_da_node_add(state, newblk, &state->extrablk);
+			state->extravalid = 0;
+		}
+	}
+
+	return(0);
+}
+
+/*
+ * Balance the btree elements between two intermediate nodes,
+ * usually one full and one empty.
+ *
+ * NOTE: if blk2 is empty, then it will get the upper half of blk1.
+ */
+STATIC void
+xfs_da_node_rebalance(xfs_da_state_t *state, xfs_da_state_blk_t *blk1,
+				     xfs_da_state_blk_t *blk2)
+{
+	xfs_da_intnode_t *node1, *node2, *tmpnode;
+	xfs_da_node_entry_t *btree_s, *btree_d;
+	int count, tmp;
+	xfs_trans_t *tp;
+
+	node1 = blk1->bp->data;
+	node2 = blk2->bp->data;
+	/*
+	 * Figure out how many entries need to move, and in which direction.
+	 * Swap the nodes around if that makes it simpler.
+	 */
+	if ((INT_GET(node1->hdr.count, ARCH_CONVERT) > 0) && (INT_GET(node2->hdr.count, ARCH_CONVERT) > 0) &&
+	    ((INT_GET(node2->btree[ 0 ].hashval, ARCH_CONVERT) < INT_GET(node1->btree[ 0 ].hashval, ARCH_CONVERT)) ||
+	     (INT_GET(node2->btree[ INT_GET(node2->hdr.count, ARCH_CONVERT)-1 ].hashval, ARCH_CONVERT) <
+	      INT_GET(node1->btree[ INT_GET(node1->hdr.count, ARCH_CONVERT)-1 ].hashval, ARCH_CONVERT)))) {
+		tmpnode = node1;
+		node1 = node2;
+		node2 = tmpnode;
+	}
+	ASSERT(INT_GET(node1->hdr.info.magic, ARCH_CONVERT) == XFS_DA_NODE_MAGIC);
+	ASSERT(INT_GET(node2->hdr.info.magic, ARCH_CONVERT) == XFS_DA_NODE_MAGIC);
+	count = (INT_GET(node1->hdr.count, ARCH_CONVERT) - INT_GET(node2->hdr.count, ARCH_CONVERT)) / 2;
+	if (count == 0)
+		return;
+	tp = state->args->trans;
+	/*
+	 * Two cases: high-to-low and low-to-high.
+	 */
+	if (count > 0) {
+		/*
+		 * Move elements in node2 up to make a hole.
+		 */
+		if ((tmp = INT_GET(node2->hdr.count, ARCH_CONVERT)) > 0) {
+			tmp *= (uint)sizeof(xfs_da_node_entry_t);
+			btree_s = &node2->btree[0];
+			btree_d = &node2->btree[count];
+			memmove(btree_d, btree_s, tmp);
+		}
+
+		/*
+		 * Move the req'd B-tree elements from high in node1 to
+		 * low in node2.
+		 */
+		INT_MOD(node2->hdr.count, ARCH_CONVERT, count);
+		tmp = count * (uint)sizeof(xfs_da_node_entry_t);
+		btree_s = &node1->btree[INT_GET(node1->hdr.count, ARCH_CONVERT) - count];
+		btree_d = &node2->btree[0];
+		memcpy(btree_d, btree_s, tmp);
+		INT_MOD(node1->hdr.count, ARCH_CONVERT, -(count));
+
+	} else {
+		/*
+		 * Move the req'd B-tree elements from low in node2 to
+		 * high in node1.
+		 */
+		count = -count;
+		tmp = count * (uint)sizeof(xfs_da_node_entry_t);
+		btree_s = &node2->btree[0];
+		btree_d = &node1->btree[INT_GET(node1->hdr.count, ARCH_CONVERT)];
+		memcpy(btree_d, btree_s, tmp);
+		INT_MOD(node1->hdr.count, ARCH_CONVERT, count);
+		xfs_da_log_buf(tp, blk1->bp,
+			XFS_DA_LOGRANGE(node1, btree_d, tmp));
+
+		/*
+		 * Move elements in node2 down to fill the hole.
+		 */
+		tmp  = INT_GET(node2->hdr.count, ARCH_CONVERT) - count;
+		tmp *= (uint)sizeof(xfs_da_node_entry_t);
+		btree_s = &node2->btree[count];
+		btree_d = &node2->btree[0];
+		memmove(btree_d, btree_s, tmp);
+		INT_MOD(node2->hdr.count, ARCH_CONVERT, -(count));
+	}
+
+	/*
+	 * Log header of node 1 and all current bits of node 2.
+	 */
+	xfs_da_log_buf(tp, blk1->bp,
+		XFS_DA_LOGRANGE(node1, &node1->hdr, sizeof(node1->hdr)));
+	xfs_da_log_buf(tp, blk2->bp,
+		XFS_DA_LOGRANGE(node2, &node2->hdr,
+			sizeof(node2->hdr) +
+			sizeof(node2->btree[0]) * INT_GET(node2->hdr.count, ARCH_CONVERT)));
+
+	/*
+	 * Record the last hashval from each block for upward propagation.
+	 * (note: don't use the swapped node pointers)
+	 */
+	node1 = blk1->bp->data;
+	node2 = blk2->bp->data;
+	blk1->hashval = INT_GET(node1->btree[ INT_GET(node1->hdr.count, ARCH_CONVERT)-1 ].hashval, ARCH_CONVERT);
+	blk2->hashval = INT_GET(node2->btree[ INT_GET(node2->hdr.count, ARCH_CONVERT)-1 ].hashval, ARCH_CONVERT);
+
+	/*
+	 * Adjust the expected index for insertion.
+	 */
+	if (blk1->index >= INT_GET(node1->hdr.count, ARCH_CONVERT)) {
+		blk2->index = blk1->index - INT_GET(node1->hdr.count, ARCH_CONVERT);
+		blk1->index = INT_GET(node1->hdr.count, ARCH_CONVERT) + 1;	/* make it invalid */
+	}
+}
+
+/*
+ * Add a new entry to an intermediate node.
+ */
+STATIC void
+xfs_da_node_add(xfs_da_state_t *state, xfs_da_state_blk_t *oldblk,
+			       xfs_da_state_blk_t *newblk)
+{
+	xfs_da_intnode_t *node;
+	xfs_da_node_entry_t *btree;
+	int tmp;
+	xfs_mount_t *mp;
+
+	node = oldblk->bp->data;
+	mp = state->mp;
+	ASSERT(INT_GET(node->hdr.info.magic, ARCH_CONVERT) == XFS_DA_NODE_MAGIC);
+	ASSERT((oldblk->index >= 0) && (oldblk->index <= INT_GET(node->hdr.count, ARCH_CONVERT)));
+	ASSERT(newblk->blkno != 0);
+	if (state->args->whichfork == XFS_DATA_FORK && XFS_DIR_IS_V2(mp))
+		ASSERT(newblk->blkno >= mp->m_dirleafblk &&
+		       newblk->blkno < mp->m_dirfreeblk);
+
+	/*
+	 * We may need to make some room before we insert the new node.
+	 */
+	tmp = 0;
+	btree = &node->btree[ oldblk->index ];
+	if (oldblk->index < INT_GET(node->hdr.count, ARCH_CONVERT)) {
+		tmp = (INT_GET(node->hdr.count, ARCH_CONVERT) - oldblk->index) * (uint)sizeof(*btree);
+		memmove(btree + 1, btree, tmp);
+	}
+	INT_SET(btree->hashval, ARCH_CONVERT, newblk->hashval);
+	INT_SET(btree->before, ARCH_CONVERT, newblk->blkno);
+	xfs_da_log_buf(state->args->trans, oldblk->bp,
+		XFS_DA_LOGRANGE(node, btree, tmp + sizeof(*btree)));
+	INT_MOD(node->hdr.count, ARCH_CONVERT, +1);
+	xfs_da_log_buf(state->args->trans, oldblk->bp,
+		XFS_DA_LOGRANGE(node, &node->hdr, sizeof(node->hdr)));
+
+	/*
+	 * Copy the last hash value from the oldblk to propagate upwards.
+	 */
+	oldblk->hashval = INT_GET(node->btree[ INT_GET(node->hdr.count, ARCH_CONVERT)-1 ].hashval, ARCH_CONVERT);
+}
+
+/*========================================================================
+ * Routines used for shrinking the Btree.
+ *========================================================================*/
+
+/*
+ * Deallocate an empty leaf node, remove it from its parent,
+ * possibly deallocating that block, etc...
+ */
+int
+xfs_da_join(xfs_da_state_t *state)
+{
+	xfs_da_state_blk_t *drop_blk, *save_blk;
+	int action, error;
+
+	action = 0;
+	drop_blk = &state->path.blk[ state->path.active-1 ];
+	save_blk = &state->altpath.blk[ state->path.active-1 ];
+	ASSERT(state->path.blk[0].magic == XFS_DA_NODE_MAGIC);
+	ASSERT(drop_blk->magic == XFS_ATTR_LEAF_MAGIC ||
+	       drop_blk->magic == XFS_DIRX_LEAF_MAGIC(state->mp));
+
+	/*
+	 * Walk back up the tree joining/deallocating as necessary.
+	 * When we stop dropping blocks, break out.
+	 */
+	for (  ; state->path.active >= 2; drop_blk--, save_blk--,
+		 state->path.active--) {
+		/*
+		 * See if we can combine the block with a neighbor.
+		 *   (action == 0) => no options, just leave
+		 *   (action == 1) => coalesce, then unlink
+		 *   (action == 2) => block empty, unlink it
+		 */
+		switch (drop_blk->magic) {
+		case XFS_ATTR_LEAF_MAGIC:
+#ifndef __KERNEL__
+			error = ENOTTY;
+#else
+			error = xfs_attr_leaf_toosmall(state, &action);
+#endif
+			if (error)
+				return(error);
+			if (action == 0)
+				return(0);
+#ifdef __KERNEL__
+			xfs_attr_leaf_unbalance(state, drop_blk, save_blk);
+#endif
+			break;
+		case XFS_DIR_LEAF_MAGIC:
+			ASSERT(XFS_DIR_IS_V1(state->mp));
+			error = xfs_dir_leaf_toosmall(state, &action);
+			if (error)
+				return(error);
+			if (action == 0)
+				return(0);
+			xfs_dir_leaf_unbalance(state, drop_blk, save_blk);
+			break;
+		case XFS_DIR2_LEAFN_MAGIC:
+			ASSERT(XFS_DIR_IS_V2(state->mp));
+			error = xfs_dir2_leafn_toosmall(state, &action);
+			if (error)
+				return error;
+			if (action == 0)
+				return 0;
+			xfs_dir2_leafn_unbalance(state, drop_blk, save_blk);
+			break;
+		case XFS_DA_NODE_MAGIC:
+			/*
+			 * Remove the offending node, fixup hashvals,
+			 * check for a toosmall neighbor.
+			 */
+			xfs_da_node_remove(state, drop_blk);
+			xfs_da_fixhashpath(state, &state->path);
+			error = xfs_da_node_toosmall(state, &action);
+			if (error)
+				return(error);
+			if (action == 0)
+				return 0;
+			xfs_da_node_unbalance(state, drop_blk, save_blk);
+			break;
+		}
+		xfs_da_fixhashpath(state, &state->altpath);
+		error = xfs_da_blk_unlink(state, drop_blk, save_blk);
+		xfs_da_state_kill_altpath(state);
+		if (error)
+			return(error);
+		error = xfs_da_shrink_inode(state->args, drop_blk->blkno,
+							 drop_blk->bp);
+		drop_blk->bp = NULL;
+		if (error)
+			return(error);
+	}
+	/*
+	 * We joined all the way to the top.  If it turns out that
+	 * we only have one entry in the root, make the child block
+	 * the new root.
+	 */
+	xfs_da_node_remove(state, drop_blk);
+	xfs_da_fixhashpath(state, &state->path);
+	error = xfs_da_root_join(state, &state->path.blk[0]);
+	return(error);
+}
+
+/*
+ * We have only one entry in the root.  Copy the only remaining child of
+ * the old root to block 0 as the new root node.
+ */
+STATIC int
+xfs_da_root_join(xfs_da_state_t *state, xfs_da_state_blk_t *root_blk)
+{
+	xfs_da_intnode_t *oldroot;
+	/* REFERENCED */
+	xfs_da_blkinfo_t *blkinfo;
+	xfs_da_args_t *args;
+	xfs_dablk_t child;
+	xfs_dabuf_t *bp;
+	int error;
+
+	args = state->args;
+	ASSERT(args != NULL);
+	ASSERT(root_blk->magic == XFS_DA_NODE_MAGIC);
+	oldroot = root_blk->bp->data;
+	ASSERT(INT_GET(oldroot->hdr.info.magic, ARCH_CONVERT) == XFS_DA_NODE_MAGIC);
+	ASSERT(INT_ISZERO(oldroot->hdr.info.forw, ARCH_CONVERT));
+	ASSERT(INT_ISZERO(oldroot->hdr.info.back, ARCH_CONVERT));
+
+	/*
+	 * If the root has more than one child, then don't do anything.
+	 */
+	if (INT_GET(oldroot->hdr.count, ARCH_CONVERT) > 1)
+		return(0);
+
+	/*
+	 * Read in the (only) child block, then copy those bytes into
+	 * the root block's buffer and free the original child block.
+	 */
+	child = INT_GET(oldroot->btree[ 0 ].before, ARCH_CONVERT);
+	ASSERT(child != 0);
+	error = xfs_da_read_buf(args->trans, args->dp, child, -1, &bp,
+					     args->whichfork);
+	if (error)
+		return(error);
+	ASSERT(bp != NULL);
+	blkinfo = bp->data;
+	if (INT_GET(oldroot->hdr.level, ARCH_CONVERT) == 1) {
+		ASSERT(INT_GET(blkinfo->magic, ARCH_CONVERT) == XFS_DIRX_LEAF_MAGIC(state->mp) ||
+		       INT_GET(blkinfo->magic, ARCH_CONVERT) == XFS_ATTR_LEAF_MAGIC);
+	} else {
+		ASSERT(INT_GET(blkinfo->magic, ARCH_CONVERT) == XFS_DA_NODE_MAGIC);
+	}
+	ASSERT(INT_ISZERO(blkinfo->forw, ARCH_CONVERT));
+	ASSERT(INT_ISZERO(blkinfo->back, ARCH_CONVERT));
+	memcpy(root_blk->bp->data, bp->data, state->blocksize);
+	xfs_da_log_buf(args->trans, root_blk->bp, 0, state->blocksize - 1);
+	error = xfs_da_shrink_inode(args, child, bp);
+	return(error);
+}
+
+/*
+ * Check a node block and its neighbors to see if the block should be
+ * collapsed into one or the other neighbor.  Always keep the block
+ * with the smaller block number.
+ * If the current block is over 50% full, don't try to join it, return 0.
+ * If the block is empty, fill in the state structure and return 2.
+ * If it can be collapsed, fill in the state structure and return 1.
+ * If nothing can be done, return 0.
+ */
+STATIC int
+xfs_da_node_toosmall(xfs_da_state_t *state, int *action)
+{
+	xfs_da_intnode_t *node;
+	xfs_da_state_blk_t *blk;
+	xfs_da_blkinfo_t *info;
+	int count, forward, error, retval, i;
+	xfs_dablk_t blkno;
+	xfs_dabuf_t *bp;
+
+	/*
+	 * Check for the degenerate case of the block being over 50% full.
+	 * If so, it's not worth even looking to see if we might be able
+	 * to coalesce with a sibling.
+	 */
+	blk = &state->path.blk[ state->path.active-1 ];
+	info = blk->bp->data;
+	ASSERT(INT_GET(info->magic, ARCH_CONVERT) == XFS_DA_NODE_MAGIC);
+	node = (xfs_da_intnode_t *)info;
+	count = INT_GET(node->hdr.count, ARCH_CONVERT);
+	if (count > (state->node_ents >> 1)) {
+		*action = 0;	/* blk over 50%, don't try to join */
+		return(0);	/* blk over 50%, don't try to join */
+	}
+
+	/*
+	 * Check for the degenerate case of the block being empty.
+	 * If the block is empty, we'll simply delete it, no need to
+	 * coalesce it with a sibling block.  We choose (aribtrarily)
+	 * to merge with the forward block unless it is NULL.
+	 */
+	if (count == 0) {
+		/*
+		 * Make altpath point to the block we want to keep and
+		 * path point to the block we want to drop (this one).
+		 */
+		forward = (!INT_ISZERO(info->forw, ARCH_CONVERT));
+		memcpy(&state->altpath, &state->path, sizeof(state->path));
+		error = xfs_da_path_shift(state, &state->altpath, forward,
+						 0, &retval);
+		if (error)
+			return(error);
+		if (retval) {
+			*action = 0;
+		} else {
+			*action = 2;
+		}
+		return(0);
+	}
+
+	/*
+	 * Examine each sibling block to see if we can coalesce with
+	 * at least 25% free space to spare.  We need to figure out
+	 * whether to merge with the forward or the backward block.
+	 * We prefer coalescing with the lower numbered sibling so as
+	 * to shrink a directory over time.
+	 */
+	/* start with smaller blk num */
+	forward = (INT_GET(info->forw, ARCH_CONVERT)
+				< INT_GET(info->back, ARCH_CONVERT));
+	for (i = 0; i < 2; forward = !forward, i++) {
+		if (forward)
+			blkno = INT_GET(info->forw, ARCH_CONVERT);
+		else
+			blkno = INT_GET(info->back, ARCH_CONVERT);
+		if (blkno == 0)
+			continue;
+		error = xfs_da_read_buf(state->args->trans, state->args->dp,
+					blkno, -1, &bp, state->args->whichfork);
+		if (error)
+			return(error);
+		ASSERT(bp != NULL);
+
+		node = (xfs_da_intnode_t *)info;
+		count  = state->node_ents;
+		count -= state->node_ents >> 2;
+		count -= INT_GET(node->hdr.count, ARCH_CONVERT);
+		node = bp->data;
+		ASSERT(INT_GET(node->hdr.info.magic, ARCH_CONVERT) == XFS_DA_NODE_MAGIC);
+		count -= INT_GET(node->hdr.count, ARCH_CONVERT);
+		xfs_da_brelse(state->args->trans, bp);
+		if (count >= 0)
+			break;	/* fits with at least 25% to spare */
+	}
+	if (i >= 2) {
+		*action = 0;
+		return(0);
+	}
+
+	/*
+	 * Make altpath point to the block we want to keep (the lower
+	 * numbered block) and path point to the block we want to drop.
+	 */
+	memcpy(&state->altpath, &state->path, sizeof(state->path));
+	if (blkno < blk->blkno) {
+		error = xfs_da_path_shift(state, &state->altpath, forward,
+						 0, &retval);
+		if (error) {
+			return(error);
+		}
+		if (retval) {
+			*action = 0;
+			return(0);
+		}
+	} else {
+		error = xfs_da_path_shift(state, &state->path, forward,
+						 0, &retval);
+		if (error) {
+			return(error);
+		}
+		if (retval) {
+			*action = 0;
+			return(0);
+		}
+	}
+	*action = 1;
+	return(0);
+}
+
+/*
+ * Walk back up the tree adjusting hash values as necessary,
+ * when we stop making changes, return.
+ */
+void
+xfs_da_fixhashpath(xfs_da_state_t *state, xfs_da_state_path_t *path)
+{
+	xfs_da_state_blk_t *blk;
+	xfs_da_intnode_t *node;
+	xfs_da_node_entry_t *btree;
+	xfs_dahash_t lasthash=0;
+	int level, count;
+
+	level = path->active-1;
+	blk = &path->blk[ level ];
+	switch (blk->magic) {
+#ifdef __KERNEL__
+	case XFS_ATTR_LEAF_MAGIC:
+		lasthash = xfs_attr_leaf_lasthash(blk->bp, &count);
+		if (count == 0)
+			return;
+		break;
+#endif
+	case XFS_DIR_LEAF_MAGIC:
+		ASSERT(XFS_DIR_IS_V1(state->mp));
+		lasthash = xfs_dir_leaf_lasthash(blk->bp, &count);
+		if (count == 0)
+			return;
+		break;
+	case XFS_DIR2_LEAFN_MAGIC:
+		ASSERT(XFS_DIR_IS_V2(state->mp));
+		lasthash = xfs_dir2_leafn_lasthash(blk->bp, &count);
+		if (count == 0)
+			return;
+		break;
+	case XFS_DA_NODE_MAGIC:
+		lasthash = xfs_da_node_lasthash(blk->bp, &count);
+		if (count == 0)
+			return;
+		break;
+	}
+	for (blk--, level--; level >= 0; blk--, level--) {
+		node = blk->bp->data;
+		ASSERT(INT_GET(node->hdr.info.magic, ARCH_CONVERT) == XFS_DA_NODE_MAGIC);
+		btree = &node->btree[ blk->index ];
+		if (INT_GET(btree->hashval, ARCH_CONVERT) == lasthash)
+			break;
+		blk->hashval = lasthash;
+		INT_SET(btree->hashval, ARCH_CONVERT, lasthash);
+		xfs_da_log_buf(state->args->trans, blk->bp,
+				  XFS_DA_LOGRANGE(node, btree, sizeof(*btree)));
+
+		lasthash = INT_GET(node->btree[ INT_GET(node->hdr.count, ARCH_CONVERT)-1 ].hashval, ARCH_CONVERT);
+	}
+}
+
+/*
+ * Remove an entry from an intermediate node.
+ */
+STATIC void
+xfs_da_node_remove(xfs_da_state_t *state, xfs_da_state_blk_t *drop_blk)
+{
+	xfs_da_intnode_t *node;
+	xfs_da_node_entry_t *btree;
+	int tmp;
+
+	node = drop_blk->bp->data;
+	ASSERT(drop_blk->index < INT_GET(node->hdr.count, ARCH_CONVERT));
+	ASSERT(drop_blk->index >= 0);
+
+	/*
+	 * Copy over the offending entry, or just zero it out.
+	 */
+	btree = &node->btree[drop_blk->index];
+	if (drop_blk->index < (INT_GET(node->hdr.count, ARCH_CONVERT)-1)) {
+		tmp  = INT_GET(node->hdr.count, ARCH_CONVERT) - drop_blk->index - 1;
+		tmp *= (uint)sizeof(xfs_da_node_entry_t);
+		memmove(btree, btree + 1, tmp);
+		xfs_da_log_buf(state->args->trans, drop_blk->bp,
+		    XFS_DA_LOGRANGE(node, btree, tmp));
+		btree = &node->btree[ INT_GET(node->hdr.count, ARCH_CONVERT)-1 ];
+	}
+	memset((char *)btree, 0, sizeof(xfs_da_node_entry_t));
+	xfs_da_log_buf(state->args->trans, drop_blk->bp,
+	    XFS_DA_LOGRANGE(node, btree, sizeof(*btree)));
+	INT_MOD(node->hdr.count, ARCH_CONVERT, -1);
+	xfs_da_log_buf(state->args->trans, drop_blk->bp,
+	    XFS_DA_LOGRANGE(node, &node->hdr, sizeof(node->hdr)));
+
+	/*
+	 * Copy the last hash value from the block to propagate upwards.
+	 */
+	btree--;
+	drop_blk->hashval = INT_GET(btree->hashval, ARCH_CONVERT);
+}
+
+/*
+ * Unbalance the btree elements between two intermediate nodes,
+ * move all Btree elements from one node into another.
+ */
+STATIC void
+xfs_da_node_unbalance(xfs_da_state_t *state, xfs_da_state_blk_t *drop_blk,
+				     xfs_da_state_blk_t *save_blk)
+{
+	xfs_da_intnode_t *drop_node, *save_node;
+	xfs_da_node_entry_t *btree;
+	int tmp;
+	xfs_trans_t *tp;
+
+	drop_node = drop_blk->bp->data;
+	save_node = save_blk->bp->data;
+	ASSERT(INT_GET(drop_node->hdr.info.magic, ARCH_CONVERT) == XFS_DA_NODE_MAGIC);
+	ASSERT(INT_GET(save_node->hdr.info.magic, ARCH_CONVERT) == XFS_DA_NODE_MAGIC);
+	tp = state->args->trans;
+
+	/*
+	 * If the dying block has lower hashvals, then move all the
+	 * elements in the remaining block up to make a hole.
+	 */
+	if ((INT_GET(drop_node->btree[ 0 ].hashval, ARCH_CONVERT) < INT_GET(save_node->btree[ 0 ].hashval, ARCH_CONVERT)) ||
+	    (INT_GET(drop_node->btree[ INT_GET(drop_node->hdr.count, ARCH_CONVERT)-1 ].hashval, ARCH_CONVERT) <
+	     INT_GET(save_node->btree[ INT_GET(save_node->hdr.count, ARCH_CONVERT)-1 ].hashval, ARCH_CONVERT)))
+	{
+		btree = &save_node->btree[ INT_GET(drop_node->hdr.count, ARCH_CONVERT) ];
+		tmp = INT_GET(save_node->hdr.count, ARCH_CONVERT) * (uint)sizeof(xfs_da_node_entry_t);
+		memmove(btree, &save_node->btree[0], tmp);
+		btree = &save_node->btree[0];
+		xfs_da_log_buf(tp, save_blk->bp,
+			XFS_DA_LOGRANGE(save_node, btree,
+				(INT_GET(save_node->hdr.count, ARCH_CONVERT) + INT_GET(drop_node->hdr.count, ARCH_CONVERT)) *
+				sizeof(xfs_da_node_entry_t)));
+	} else {
+		btree = &save_node->btree[ INT_GET(save_node->hdr.count, ARCH_CONVERT) ];
+		xfs_da_log_buf(tp, save_blk->bp,
+			XFS_DA_LOGRANGE(save_node, btree,
+				INT_GET(drop_node->hdr.count, ARCH_CONVERT) *
+				sizeof(xfs_da_node_entry_t)));
+	}
+
+	/*
+	 * Move all the B-tree elements from drop_blk to save_blk.
+	 */
+	tmp = INT_GET(drop_node->hdr.count, ARCH_CONVERT) * (uint)sizeof(xfs_da_node_entry_t);
+	memcpy(btree, &drop_node->btree[0], tmp);
+	INT_MOD(save_node->hdr.count, ARCH_CONVERT, INT_GET(drop_node->hdr.count, ARCH_CONVERT));
+
+	xfs_da_log_buf(tp, save_blk->bp,
+		XFS_DA_LOGRANGE(save_node, &save_node->hdr,
+			sizeof(save_node->hdr)));
+
+	/*
+	 * Save the last hashval in the remaining block for upward propagation.
+	 */
+	save_blk->hashval = INT_GET(save_node->btree[ INT_GET(save_node->hdr.count, ARCH_CONVERT)-1 ].hashval, ARCH_CONVERT);
+}
+
+/*========================================================================
+ * Routines used for finding things in the Btree.
+ *========================================================================*/
+
+/*
+ * Walk down the Btree looking for a particular filename, filling
+ * in the state structure as we go.
+ *
+ * We will set the state structure to point to each of the elements
+ * in each of the nodes where either the hashval is or should be.
+ *
+ * We support duplicate hashval's so for each entry in the current
+ * node that could contain the desired hashval, descend.  This is a
+ * pruned depth-first tree search.
+ */
+int							/* error */
+xfs_da_node_lookup_int(xfs_da_state_t *state, int *result)
+{
+	xfs_da_state_blk_t *blk;
+	xfs_da_blkinfo_t *curr;
+	xfs_da_intnode_t *node;
+	xfs_da_node_entry_t *btree;
+	xfs_dablk_t blkno;
+	int probe, span, max, error, retval;
+	xfs_dahash_t hashval;
+	xfs_da_args_t *args;
+
+	args = state->args;
+
+	/*
+	 * Descend thru the B-tree searching each level for the right
+	 * node to use, until the right hashval is found.
+	 */
+	if (args->whichfork == XFS_DATA_FORK && XFS_DIR_IS_V2(state->mp))
+		blkno = state->mp->m_dirleafblk;
+	else
+		blkno = 0;
+	for (blk = &state->path.blk[0], state->path.active = 1;
+			 state->path.active <= XFS_DA_NODE_MAXDEPTH;
+			 blk++, state->path.active++) {
+		/*
+		 * Read the next node down in the tree.
+		 */
+		blk->blkno = blkno;
+		error = xfs_da_read_buf(args->trans, args->dp, blkno,
+					-1, &blk->bp, args->whichfork);
+		if (error) {
+			blk->blkno = 0;
+			state->path.active--;
+			return(error);
+		}
+		curr = blk->bp->data;
+		ASSERT(INT_GET(curr->magic, ARCH_CONVERT) == XFS_DA_NODE_MAGIC ||
+		       INT_GET(curr->magic, ARCH_CONVERT) == XFS_DIRX_LEAF_MAGIC(state->mp) ||
+		       INT_GET(curr->magic, ARCH_CONVERT) == XFS_ATTR_LEAF_MAGIC);
+
+		/*
+		 * Search an intermediate node for a match.
+		 */
+		blk->magic = INT_GET(curr->magic, ARCH_CONVERT);
+		if (INT_GET(curr->magic, ARCH_CONVERT) == XFS_DA_NODE_MAGIC) {
+			node = blk->bp->data;
+			blk->hashval = INT_GET(node->btree[ INT_GET(node->hdr.count, ARCH_CONVERT)-1 ].hashval, ARCH_CONVERT);
+
+			/*
+			 * Binary search.  (note: small blocks will skip loop)
+			 */
+			max = INT_GET(node->hdr.count, ARCH_CONVERT);
+			probe = span = max / 2;
+			hashval = args->hashval;
+			for (btree = &node->btree[probe]; span > 4;
+				   btree = &node->btree[probe]) {
+				span /= 2;
+				if (INT_GET(btree->hashval, ARCH_CONVERT) < hashval)
+					probe += span;
+				else if (INT_GET(btree->hashval, ARCH_CONVERT) > hashval)
+					probe -= span;
+				else
+					break;
+			}
+			ASSERT((probe >= 0) && (probe < max));
+			ASSERT((span <= 4) || (INT_GET(btree->hashval, ARCH_CONVERT) == hashval));
+
+			/*
+			 * Since we may have duplicate hashval's, find the first
+			 * matching hashval in the node.
+			 */
+			while ((probe > 0) && (INT_GET(btree->hashval, ARCH_CONVERT) >= hashval)) {
+				btree--;
+				probe--;
+			}
+			while ((probe < max) && (INT_GET(btree->hashval, ARCH_CONVERT) < hashval)) {
+				btree++;
+				probe++;
+			}
+
+			/*
+			 * Pick the right block to descend on.
+			 */
+			if (probe == max) {
+				blk->index = max-1;
+				blkno = INT_GET(node->btree[ max-1 ].before, ARCH_CONVERT);
+			} else {
+				blk->index = probe;
+				blkno = INT_GET(btree->before, ARCH_CONVERT);
+			}
+		}
+#ifdef __KERNEL__
+		else if (INT_GET(curr->magic, ARCH_CONVERT) == XFS_ATTR_LEAF_MAGIC) {
+			blk->hashval = xfs_attr_leaf_lasthash(blk->bp, NULL);
+			break;
+		}
+#endif
+		else if (INT_GET(curr->magic, ARCH_CONVERT) == XFS_DIR_LEAF_MAGIC) {
+			blk->hashval = xfs_dir_leaf_lasthash(blk->bp, NULL);
+			break;
+		}
+		else if (INT_GET(curr->magic, ARCH_CONVERT) == XFS_DIR2_LEAFN_MAGIC) {
+			blk->hashval = xfs_dir2_leafn_lasthash(blk->bp, NULL);
+			break;
+		}
+	}
+
+	/*
+	 * A leaf block that ends in the hashval that we are interested in
+	 * (final hashval == search hashval) means that the next block may
+	 * contain more entries with the same hashval, shift upward to the
+	 * next leaf and keep searching.
+	 */
+	for (;;) {
+		if (blk->magic == XFS_DIR_LEAF_MAGIC) {
+			ASSERT(XFS_DIR_IS_V1(state->mp));
+			retval = xfs_dir_leaf_lookup_int(blk->bp, args,
+								  &blk->index);
+		} else if (blk->magic == XFS_DIR2_LEAFN_MAGIC) {
+			ASSERT(XFS_DIR_IS_V2(state->mp));
+			retval = xfs_dir2_leafn_lookup_int(blk->bp, args,
+							&blk->index, state);
+		}
+#ifdef __KERNEL__
+		else if (blk->magic == XFS_ATTR_LEAF_MAGIC) {
+			retval = xfs_attr_leaf_lookup_int(blk->bp, args);
+			blk->index = args->index;
+			args->blkno = blk->blkno;
+		}
+#endif
+		if (((retval == ENOENT) || (retval == ENOATTR)) &&
+		    (blk->hashval == args->hashval)) {
+			error = xfs_da_path_shift(state, &state->path, 1, 1,
+							 &retval);
+			if (error)
+				return(error);
+			if (retval == 0) {
+				continue;
+			}
+#ifdef __KERNEL__
+			else if (blk->magic == XFS_ATTR_LEAF_MAGIC) {
+				/* path_shift() gives ENOENT */
+				retval = XFS_ERROR(ENOATTR);
+			}
+#endif
+		}
+		break;
+	}
+	*result = retval;
+	return(0);
+}
+
+/*========================================================================
+ * Utility routines.
+ *========================================================================*/
+
+/*
+ * Link a new block into a doubly linked list of blocks (of whatever type).
+ */
+int							/* error */
+xfs_da_blk_link(xfs_da_state_t *state, xfs_da_state_blk_t *old_blk,
+			       xfs_da_state_blk_t *new_blk)
+{
+	xfs_da_blkinfo_t *old_info, *new_info, *tmp_info;
+	xfs_da_args_t *args;
+	int before=0, error;
+	xfs_dabuf_t *bp;
+
+	/*
+	 * Set up environment.
+	 */
+	args = state->args;
+	ASSERT(args != NULL);
+	old_info = old_blk->bp->data;
+	new_info = new_blk->bp->data;
+	ASSERT(old_blk->magic == XFS_DA_NODE_MAGIC ||
+	       old_blk->magic == XFS_DIRX_LEAF_MAGIC(state->mp) ||
+	       old_blk->magic == XFS_ATTR_LEAF_MAGIC);
+	ASSERT(old_blk->magic == INT_GET(old_info->magic, ARCH_CONVERT));
+	ASSERT(new_blk->magic == INT_GET(new_info->magic, ARCH_CONVERT));
+	ASSERT(old_blk->magic == new_blk->magic);
+
+	switch (old_blk->magic) {
+#ifdef __KERNEL__
+	case XFS_ATTR_LEAF_MAGIC:
+		before = xfs_attr_leaf_order(old_blk->bp, new_blk->bp);
+		break;
+#endif
+	case XFS_DIR_LEAF_MAGIC:
+		ASSERT(XFS_DIR_IS_V1(state->mp));
+		before = xfs_dir_leaf_order(old_blk->bp, new_blk->bp);
+		break;
+	case XFS_DIR2_LEAFN_MAGIC:
+		ASSERT(XFS_DIR_IS_V2(state->mp));
+		before = xfs_dir2_leafn_order(old_blk->bp, new_blk->bp);
+		break;
+	case XFS_DA_NODE_MAGIC:
+		before = xfs_da_node_order(old_blk->bp, new_blk->bp);
+		break;
+	}
+
+	/*
+	 * Link blocks in appropriate order.
+	 */
+	if (before) {
+		/*
+		 * Link new block in before existing block.
+		 */
+		INT_SET(new_info->forw, ARCH_CONVERT, old_blk->blkno);
+		new_info->back = old_info->back; /* INT_: direct copy */
+		if (INT_GET(old_info->back, ARCH_CONVERT)) {
+			error = xfs_da_read_buf(args->trans, args->dp,
+						INT_GET(old_info->back,
+							ARCH_CONVERT), -1, &bp,
+						args->whichfork);
+			if (error)
+				return(error);
+			ASSERT(bp != NULL);
+			tmp_info = bp->data;
+			ASSERT(INT_GET(tmp_info->magic, ARCH_CONVERT) == INT_GET(old_info->magic, ARCH_CONVERT));
+			ASSERT(INT_GET(tmp_info->forw, ARCH_CONVERT) == old_blk->blkno);
+			INT_SET(tmp_info->forw, ARCH_CONVERT, new_blk->blkno);
+			xfs_da_log_buf(args->trans, bp, 0, sizeof(*tmp_info)-1);
+			xfs_da_buf_done(bp);
+		}
+		INT_SET(old_info->back, ARCH_CONVERT, new_blk->blkno);
+	} else {
+		/*
+		 * Link new block in after existing block.
+		 */
+		new_info->forw = old_info->forw; /* INT_: direct copy */
+		INT_SET(new_info->back, ARCH_CONVERT, old_blk->blkno);
+		if (INT_GET(old_info->forw, ARCH_CONVERT)) {
+			error = xfs_da_read_buf(args->trans, args->dp,
+						INT_GET(old_info->forw, ARCH_CONVERT), -1, &bp,
+						args->whichfork);
+			if (error)
+				return(error);
+			ASSERT(bp != NULL);
+			tmp_info = bp->data;
+			ASSERT(INT_GET(tmp_info->magic, ARCH_CONVERT)
+				    == INT_GET(old_info->magic, ARCH_CONVERT));
+			ASSERT(INT_GET(tmp_info->back, ARCH_CONVERT)
+				    == old_blk->blkno);
+			INT_SET(tmp_info->back, ARCH_CONVERT, new_blk->blkno);
+			xfs_da_log_buf(args->trans, bp, 0, sizeof(*tmp_info)-1);
+			xfs_da_buf_done(bp);
+		}
+		INT_SET(old_info->forw, ARCH_CONVERT, new_blk->blkno);
+	}
+
+	xfs_da_log_buf(args->trans, old_blk->bp, 0, sizeof(*tmp_info) - 1);
+	xfs_da_log_buf(args->trans, new_blk->bp, 0, sizeof(*tmp_info) - 1);
+	return(0);
+}
+
+/*
+ * Compare two intermediate nodes for "order".
+ */
+STATIC int
+xfs_da_node_order(xfs_dabuf_t *node1_bp, xfs_dabuf_t *node2_bp)
+{
+	xfs_da_intnode_t *node1, *node2;
+
+	node1 = node1_bp->data;
+	node2 = node2_bp->data;
+	ASSERT((INT_GET(node1->hdr.info.magic, ARCH_CONVERT) == XFS_DA_NODE_MAGIC) &&
+	       (INT_GET(node2->hdr.info.magic, ARCH_CONVERT) == XFS_DA_NODE_MAGIC));
+	if ((INT_GET(node1->hdr.count, ARCH_CONVERT) > 0) && (INT_GET(node2->hdr.count, ARCH_CONVERT) > 0) &&
+	    ((INT_GET(node2->btree[ 0 ].hashval, ARCH_CONVERT) <
+	      INT_GET(node1->btree[ 0 ].hashval, ARCH_CONVERT)) ||
+	     (INT_GET(node2->btree[ INT_GET(node2->hdr.count, ARCH_CONVERT)-1 ].hashval, ARCH_CONVERT) <
+	      INT_GET(node1->btree[ INT_GET(node1->hdr.count, ARCH_CONVERT)-1 ].hashval, ARCH_CONVERT)))) {
+		return(1);
+	}
+	return(0);
+}
+
+/*
+ * Pick up the last hashvalue from an intermediate node.
+ */
+STATIC uint
+xfs_da_node_lasthash(xfs_dabuf_t *bp, int *count)
+{
+	xfs_da_intnode_t *node;
+
+	node = bp->data;
+	ASSERT(INT_GET(node->hdr.info.magic, ARCH_CONVERT) == XFS_DA_NODE_MAGIC);
+	if (count)
+		*count = INT_GET(node->hdr.count, ARCH_CONVERT);
+	if (INT_ISZERO(node->hdr.count, ARCH_CONVERT))
+		return(0);
+	return(INT_GET(node->btree[ INT_GET(node->hdr.count, ARCH_CONVERT)-1 ].hashval, ARCH_CONVERT));
+}
+
+/*
+ * Unlink a block from a doubly linked list of blocks.
+ */
+int							/* error */
+xfs_da_blk_unlink(xfs_da_state_t *state, xfs_da_state_blk_t *drop_blk,
+				 xfs_da_state_blk_t *save_blk)
+{
+	xfs_da_blkinfo_t *drop_info, *save_info, *tmp_info;
+	xfs_da_args_t *args;
+	xfs_dabuf_t *bp;
+	int error;
+
+	/*
+	 * Set up environment.
+	 */
+	args = state->args;
+	ASSERT(args != NULL);
+	save_info = save_blk->bp->data;
+	drop_info = drop_blk->bp->data;
+	ASSERT(save_blk->magic == XFS_DA_NODE_MAGIC ||
+	       save_blk->magic == XFS_DIRX_LEAF_MAGIC(state->mp) ||
+	       save_blk->magic == XFS_ATTR_LEAF_MAGIC);
+	ASSERT(save_blk->magic == INT_GET(save_info->magic, ARCH_CONVERT));
+	ASSERT(drop_blk->magic == INT_GET(drop_info->magic, ARCH_CONVERT));
+	ASSERT(save_blk->magic == drop_blk->magic);
+	ASSERT((INT_GET(save_info->forw, ARCH_CONVERT) == drop_blk->blkno) ||
+	       (INT_GET(save_info->back, ARCH_CONVERT) == drop_blk->blkno));
+	ASSERT((INT_GET(drop_info->forw, ARCH_CONVERT) == save_blk->blkno) ||
+	       (INT_GET(drop_info->back, ARCH_CONVERT) == save_blk->blkno));
+
+	/*
+	 * Unlink the leaf block from the doubly linked chain of leaves.
+	 */
+	if (INT_GET(save_info->back, ARCH_CONVERT) == drop_blk->blkno) {
+		save_info->back = drop_info->back; /* INT_: direct copy */
+		if (INT_GET(drop_info->back, ARCH_CONVERT)) {
+			error = xfs_da_read_buf(args->trans, args->dp,
+						INT_GET(drop_info->back,
+							ARCH_CONVERT), -1, &bp,
+						args->whichfork);
+			if (error)
+				return(error);
+			ASSERT(bp != NULL);
+			tmp_info = bp->data;
+			ASSERT(INT_GET(tmp_info->magic, ARCH_CONVERT) == INT_GET(save_info->magic, ARCH_CONVERT));
+			ASSERT(INT_GET(tmp_info->forw, ARCH_CONVERT) == drop_blk->blkno);
+			INT_SET(tmp_info->forw, ARCH_CONVERT, save_blk->blkno);
+			xfs_da_log_buf(args->trans, bp, 0,
+						    sizeof(*tmp_info) - 1);
+			xfs_da_buf_done(bp);
+		}
+	} else {
+		save_info->forw = drop_info->forw; /* INT_: direct copy */
+		if (INT_GET(drop_info->forw, ARCH_CONVERT)) {
+			error = xfs_da_read_buf(args->trans, args->dp,
+						INT_GET(drop_info->forw, ARCH_CONVERT), -1, &bp,
+						args->whichfork);
+			if (error)
+				return(error);
+			ASSERT(bp != NULL);
+			tmp_info = bp->data;
+			ASSERT(INT_GET(tmp_info->magic, ARCH_CONVERT)
+				    == INT_GET(save_info->magic, ARCH_CONVERT));
+			ASSERT(INT_GET(tmp_info->back, ARCH_CONVERT)
+				    == drop_blk->blkno);
+			INT_SET(tmp_info->back, ARCH_CONVERT, save_blk->blkno);
+			xfs_da_log_buf(args->trans, bp, 0,
+						    sizeof(*tmp_info) - 1);
+			xfs_da_buf_done(bp);
+		}
+	}
+
+	xfs_da_log_buf(args->trans, save_blk->bp, 0, sizeof(*save_info) - 1);
+	return(0);
+}
+
+/*
+ * Move a path "forward" or "!forward" one block at the current level.
+ *
+ * This routine will adjust a "path" to point to the next block
+ * "forward" (higher hashvalues) or "!forward" (lower hashvals) in the
+ * Btree, including updating pointers to the intermediate nodes between
+ * the new bottom and the root.
+ */
+int							/* error */
+xfs_da_path_shift(xfs_da_state_t *state, xfs_da_state_path_t *path,
+				 int forward, int release, int *result)
+{
+	xfs_da_state_blk_t *blk;
+	xfs_da_blkinfo_t *info;
+	xfs_da_intnode_t *node;
+	xfs_da_args_t *args;
+	xfs_dablk_t blkno=0;
+	int level, error;
+
+	/*
+	 * Roll up the Btree looking for the first block where our
+	 * current index is not at the edge of the block.  Note that
+	 * we skip the bottom layer because we want the sibling block.
+	 */
+	args = state->args;
+	ASSERT(args != NULL);
+	ASSERT(path != NULL);
+	ASSERT((path->active > 0) && (path->active < XFS_DA_NODE_MAXDEPTH));
+	level = (path->active-1) - 1;	/* skip bottom layer in path */
+	for (blk = &path->blk[level]; level >= 0; blk--, level--) {
+		ASSERT(blk->bp != NULL);
+		node = blk->bp->data;
+		ASSERT(INT_GET(node->hdr.info.magic, ARCH_CONVERT) == XFS_DA_NODE_MAGIC);
+		if (forward && (blk->index < INT_GET(node->hdr.count, ARCH_CONVERT)-1)) {
+			blk->index++;
+			blkno = INT_GET(node->btree[ blk->index ].before, ARCH_CONVERT);
+			break;
+		} else if (!forward && (blk->index > 0)) {
+			blk->index--;
+			blkno = INT_GET(node->btree[ blk->index ].before, ARCH_CONVERT);
+			break;
+		}
+	}
+	if (level < 0) {
+		*result = XFS_ERROR(ENOENT);	/* we're out of our tree */
+		ASSERT(args->oknoent);
+		return(0);
+	}
+
+	/*
+	 * Roll down the edge of the subtree until we reach the
+	 * same depth we were at originally.
+	 */
+	for (blk++, level++; level < path->active; blk++, level++) {
+		/*
+		 * Release the old block.
+		 * (if it's dirty, trans won't actually let go)
+		 */
+		if (release)
+			xfs_da_brelse(args->trans, blk->bp);
+
+		/*
+		 * Read the next child block.
+		 */
+		blk->blkno = blkno;
+		error = xfs_da_read_buf(args->trans, args->dp, blkno, -1,
+						     &blk->bp, args->whichfork);
+		if (error)
+			return(error);
+		ASSERT(blk->bp != NULL);
+		info = blk->bp->data;
+		ASSERT(INT_GET(info->magic, ARCH_CONVERT) == XFS_DA_NODE_MAGIC ||
+		       INT_GET(info->magic, ARCH_CONVERT) == XFS_DIRX_LEAF_MAGIC(state->mp) ||
+		       INT_GET(info->magic, ARCH_CONVERT) == XFS_ATTR_LEAF_MAGIC);
+		blk->magic = INT_GET(info->magic, ARCH_CONVERT);
+		if (INT_GET(info->magic, ARCH_CONVERT) == XFS_DA_NODE_MAGIC) {
+			node = (xfs_da_intnode_t *)info;
+			blk->hashval = INT_GET(node->btree[ INT_GET(node->hdr.count, ARCH_CONVERT)-1 ].hashval, ARCH_CONVERT);
+			if (forward)
+				blk->index = 0;
+			else
+				blk->index = INT_GET(node->hdr.count, ARCH_CONVERT)-1;
+			blkno = INT_GET(node->btree[ blk->index ].before, ARCH_CONVERT);
+		} else {
+			ASSERT(level == path->active-1);
+			blk->index = 0;
+			switch(blk->magic) {
+#ifdef __KERNEL__
+			case XFS_ATTR_LEAF_MAGIC:
+				blk->hashval = xfs_attr_leaf_lasthash(blk->bp,
+								      NULL);
+				break;
+#endif
+			case XFS_DIR_LEAF_MAGIC:
+				ASSERT(XFS_DIR_IS_V1(state->mp));
+				blk->hashval = xfs_dir_leaf_lasthash(blk->bp,
+								     NULL);
+				break;
+			case XFS_DIR2_LEAFN_MAGIC:
+				ASSERT(XFS_DIR_IS_V2(state->mp));
+				blk->hashval = xfs_dir2_leafn_lasthash(blk->bp,
+								       NULL);
+				break;
+			default:
+				ASSERT(blk->magic == XFS_ATTR_LEAF_MAGIC ||
+				       blk->magic ==
+				       XFS_DIRX_LEAF_MAGIC(state->mp));
+				break;
+			}
+		}
+	}
+	*result = 0;
+	return(0);
+}
+
+
+/*========================================================================
+ * Utility routines.
+ *========================================================================*/
+
+/*
+ * Implement a simple hash on a character string.
+ * Rotate the hash value by 7 bits, then XOR each character in.
+ * This is implemented with some source-level loop unrolling.
+ */
+xfs_dahash_t
+xfs_da_hashname(uchar_t *name, int namelen)
+{
+	xfs_dahash_t hash;
+
+#define	ROTL(x,y)	(((x) << (y)) | ((x) >> (32 - (y))))
+#ifdef SLOWVERSION
+	/*
+	 * This is the old one-byte-at-a-time version.
+	 */
+	for (hash = 0; namelen > 0; namelen--) {
+		hash = *name++ ^ ROTL(hash, 7);
+	}
+	return(hash);
+#else
+	/*
+	 * Do four characters at a time as long as we can.
+	 */
+	for (hash = 0; namelen >= 4; namelen -= 4, name += 4) {
+		hash = (name[0] << 21) ^ (name[1] << 14) ^ (name[2] << 7) ^
+		       (name[3] << 0) ^ ROTL(hash, 7 * 4);
+	}
+	/*
+	 * Now do the rest of the characters.
+	 */
+	switch (namelen) {
+	case 3:
+		return (name[0] << 14) ^ (name[1] << 7) ^ (name[2] << 0) ^
+		       ROTL(hash, 7 * 3);
+	case 2:
+		return (name[0] << 7) ^ (name[1] << 0) ^ ROTL(hash, 7 * 2);
+	case 1:
+		return (name[0] << 0) ^ ROTL(hash, 7 * 1);
+	case 0:
+		return hash;
+	}
+	/* NOTREACHED */
+#endif
+#undef ROTL
+	return 0; /* keep gcc happy */
+}
+
+/*
+ * Add a block to the btree ahead of the file.
+ * Return the new block number to the caller.
+ */
+int
+xfs_da_grow_inode(xfs_da_args_t *args, xfs_dablk_t *new_blkno)
+{
+	xfs_fileoff_t bno, b;
+	xfs_bmbt_irec_t map;
+	xfs_bmbt_irec_t	*mapp;
+	xfs_inode_t *dp;
+	int nmap, error, w, count, c, got, i, mapi;
+	xfs_fsize_t size;
+	xfs_trans_t *tp;
+	xfs_mount_t *mp;
+
+	dp = args->dp;
+	mp = dp->i_mount;
+	w = args->whichfork;
+	tp = args->trans;
+	/*
+	 * For new directories adjust the file offset and block count.
+	 */
+	if (w == XFS_DATA_FORK && XFS_DIR_IS_V2(mp)) {
+		bno = mp->m_dirleafblk;
+		count = mp->m_dirblkfsbs;
+	} else {
+		bno = 0;
+		count = 1;
+	}
+	/*
+	 * Find a spot in the file space to put the new block.
+	 */
+	if ((error = xfs_bmap_first_unused(tp, dp, count, &bno, w))) {
+		return error;
+	}
+	if (w == XFS_DATA_FORK && XFS_DIR_IS_V2(mp))
+		ASSERT(bno >= mp->m_dirleafblk && bno < mp->m_dirfreeblk);
+	/*
+	 * Try mapping it in one filesystem block.
+	 */
+	nmap = 1;
+	ASSERT(args->firstblock != NULL);
+	if ((error = xfs_bmapi(tp, dp, bno, count,
+			XFS_BMAPI_AFLAG(w)|XFS_BMAPI_WRITE|XFS_BMAPI_METADATA|
+			XFS_BMAPI_CONTIG,
+			args->firstblock, args->total, &map, &nmap,
+			args->flist))) {
+		return error;
+	}
+	ASSERT(nmap <= 1);
+	if (nmap == 1) {
+		mapp = &map;
+		mapi = 1;
+	}
+	/*
+	 * If we didn't get it and the block might work if fragmented,
+	 * try without the CONTIG flag.  Loop until we get it all.
+	 */
+	else if (nmap == 0 && count > 1) {
+		mapp = kmem_alloc(sizeof(*mapp) * count, KM_SLEEP);
+		for (b = bno, mapi = 0; b < bno + count; ) {
+			nmap = MIN(XFS_BMAP_MAX_NMAP, count);
+			c = (int)(bno + count - b);
+			if ((error = xfs_bmapi(tp, dp, b, c,
+					XFS_BMAPI_AFLAG(w)|XFS_BMAPI_WRITE|
+					XFS_BMAPI_METADATA,
+					args->firstblock, args->total,
+					&mapp[mapi], &nmap, args->flist))) {
+				kmem_free(mapp, sizeof(*mapp) * count);
+				return error;
+			}
+			if (nmap < 1)
+				break;
+			mapi += nmap;
+			b = mapp[mapi - 1].br_startoff +
+			    mapp[mapi - 1].br_blockcount;
+		}
+	} else {
+		mapi = 0;
+		mapp = NULL;
+	}
+	/*
+	 * Count the blocks we got, make sure it matches the total.
+	 */
+	for (i = 0, got = 0; i < mapi; i++)
+		got += mapp[i].br_blockcount;
+	if (got != count || mapp[0].br_startoff != bno ||
+	    mapp[mapi - 1].br_startoff + mapp[mapi - 1].br_blockcount !=
+	    bno + count) {
+		if (mapp != &map)
+			kmem_free(mapp, sizeof(*mapp) * count);
+		return XFS_ERROR(ENOSPC);
+	}
+	if (mapp != &map)
+		kmem_free(mapp, sizeof(*mapp) * count);
+	*new_blkno = (xfs_dablk_t)bno;
+	/*
+	 * For version 1 directories, adjust the file size if it changed.
+	 */
+	if (w == XFS_DATA_FORK && XFS_DIR_IS_V1(mp)) {
+		ASSERT(mapi == 1);
+		if ((error = xfs_bmap_last_offset(tp, dp, &bno, w)))
+			return error;
+		size = XFS_FSB_TO_B(mp, bno);
+		if (size != dp->i_d.di_size) {
+			dp->i_d.di_size = size;
+			xfs_trans_log_inode(tp, dp, XFS_ILOG_CORE);
+		}
+	}
+	return 0;
+}
+
+/*
+ * Ick.  We need to always be able to remove a btree block, even
+ * if there's no space reservation because the filesystem is full.
+ * This is called if xfs_bunmapi on a btree block fails due to ENOSPC.
+ * It swaps the target block with the last block in the file.  The
+ * last block in the file can always be removed since it can't cause
+ * a bmap btree split to do that.
+ */
+STATIC int
+xfs_da_swap_lastblock(xfs_da_args_t *args, xfs_dablk_t *dead_blknop,
+		      xfs_dabuf_t **dead_bufp)
+{
+	xfs_dablk_t dead_blkno, last_blkno, sib_blkno, par_blkno;
+	xfs_dabuf_t *dead_buf, *last_buf, *sib_buf, *par_buf;
+	xfs_fileoff_t lastoff;
+	xfs_inode_t *ip;
+	xfs_trans_t *tp;
+	xfs_mount_t *mp;
+	int error, w, entno, level, dead_level;
+	xfs_da_blkinfo_t *dead_info, *sib_info;
+	xfs_da_intnode_t *par_node, *dead_node;
+	xfs_dir_leafblock_t *dead_leaf;
+	xfs_dir2_leaf_t *dead_leaf2;
+	xfs_dahash_t dead_hash;
+
+	dead_buf = *dead_bufp;
+	dead_blkno = *dead_blknop;
+	tp = args->trans;
+	ip = args->dp;
+	w = args->whichfork;
+	ASSERT(w == XFS_DATA_FORK);
+	mp = ip->i_mount;
+	if (XFS_DIR_IS_V2(mp)) {
+		lastoff = mp->m_dirfreeblk;
+		error = xfs_bmap_last_before(tp, ip, &lastoff, w);
+	} else
+		error = xfs_bmap_last_offset(tp, ip, &lastoff, w);
+	if (error)
+		return error;
+	if (unlikely(lastoff == 0)) {
+		XFS_ERROR_REPORT("xfs_da_swap_lastblock(1)", XFS_ERRLEVEL_LOW,
+				 mp);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+	/*
+	 * Read the last block in the btree space.
+	 */
+	last_blkno = (xfs_dablk_t)lastoff - mp->m_dirblkfsbs;
+	if ((error = xfs_da_read_buf(tp, ip, last_blkno, -1, &last_buf, w)))
+		return error;
+	/*
+	 * Copy the last block into the dead buffer and log it.
+	 */
+	memcpy(dead_buf->data, last_buf->data, mp->m_dirblksize);
+	xfs_da_log_buf(tp, dead_buf, 0, mp->m_dirblksize - 1);
+	dead_info = dead_buf->data;
+	/*
+	 * Get values from the moved block.
+	 */
+	if (INT_GET(dead_info->magic, ARCH_CONVERT) == XFS_DIR_LEAF_MAGIC) {
+		ASSERT(XFS_DIR_IS_V1(mp));
+		dead_leaf = (xfs_dir_leafblock_t *)dead_info;
+		dead_level = 0;
+		dead_hash =
+			INT_GET(dead_leaf->entries[INT_GET(dead_leaf->hdr.count, ARCH_CONVERT) - 1].hashval, ARCH_CONVERT);
+	} else if (INT_GET(dead_info->magic, ARCH_CONVERT) == XFS_DIR2_LEAFN_MAGIC) {
+		ASSERT(XFS_DIR_IS_V2(mp));
+		dead_leaf2 = (xfs_dir2_leaf_t *)dead_info;
+		dead_level = 0;
+		dead_hash = INT_GET(dead_leaf2->ents[INT_GET(dead_leaf2->hdr.count, ARCH_CONVERT) - 1].hashval, ARCH_CONVERT);
+	} else {
+		ASSERT(INT_GET(dead_info->magic, ARCH_CONVERT) == XFS_DA_NODE_MAGIC);
+		dead_node = (xfs_da_intnode_t *)dead_info;
+		dead_level = INT_GET(dead_node->hdr.level, ARCH_CONVERT);
+		dead_hash = INT_GET(dead_node->btree[INT_GET(dead_node->hdr.count, ARCH_CONVERT) - 1].hashval, ARCH_CONVERT);
+	}
+	sib_buf = par_buf = NULL;
+	/*
+	 * If the moved block has a left sibling, fix up the pointers.
+	 */
+	if ((sib_blkno = INT_GET(dead_info->back, ARCH_CONVERT))) {
+		if ((error = xfs_da_read_buf(tp, ip, sib_blkno, -1, &sib_buf, w)))
+			goto done;
+		sib_info = sib_buf->data;
+		if (unlikely(
+		    INT_GET(sib_info->forw, ARCH_CONVERT) != last_blkno ||
+		    INT_GET(sib_info->magic, ARCH_CONVERT) != INT_GET(dead_info->magic, ARCH_CONVERT))) {
+			XFS_ERROR_REPORT("xfs_da_swap_lastblock(2)",
+					 XFS_ERRLEVEL_LOW, mp);
+			error = XFS_ERROR(EFSCORRUPTED);
+			goto done;
+		}
+		INT_SET(sib_info->forw, ARCH_CONVERT, dead_blkno);
+		xfs_da_log_buf(tp, sib_buf,
+			XFS_DA_LOGRANGE(sib_info, &sib_info->forw,
+					sizeof(sib_info->forw)));
+		xfs_da_buf_done(sib_buf);
+		sib_buf = NULL;
+	}
+	/*
+	 * If the moved block has a right sibling, fix up the pointers.
+	 */
+	if ((sib_blkno = INT_GET(dead_info->forw, ARCH_CONVERT))) {
+		if ((error = xfs_da_read_buf(tp, ip, sib_blkno, -1, &sib_buf, w)))
+			goto done;
+		sib_info = sib_buf->data;
+		if (unlikely(
+		       INT_GET(sib_info->back, ARCH_CONVERT) != last_blkno
+		    || INT_GET(sib_info->magic, ARCH_CONVERT)
+				!= INT_GET(dead_info->magic, ARCH_CONVERT))) {
+			XFS_ERROR_REPORT("xfs_da_swap_lastblock(3)",
+					 XFS_ERRLEVEL_LOW, mp);
+			error = XFS_ERROR(EFSCORRUPTED);
+			goto done;
+		}
+		INT_SET(sib_info->back, ARCH_CONVERT, dead_blkno);
+		xfs_da_log_buf(tp, sib_buf,
+			XFS_DA_LOGRANGE(sib_info, &sib_info->back,
+					sizeof(sib_info->back)));
+		xfs_da_buf_done(sib_buf);
+		sib_buf = NULL;
+	}
+	par_blkno = XFS_DIR_IS_V1(mp) ? 0 : mp->m_dirleafblk;
+	level = -1;
+	/*
+	 * Walk down the tree looking for the parent of the moved block.
+	 */
+	for (;;) {
+		if ((error = xfs_da_read_buf(tp, ip, par_blkno, -1, &par_buf, w)))
+			goto done;
+		par_node = par_buf->data;
+		if (unlikely(
+		    INT_GET(par_node->hdr.info.magic, ARCH_CONVERT) != XFS_DA_NODE_MAGIC ||
+		    (level >= 0 && level != INT_GET(par_node->hdr.level, ARCH_CONVERT) + 1))) {
+			XFS_ERROR_REPORT("xfs_da_swap_lastblock(4)",
+					 XFS_ERRLEVEL_LOW, mp);
+			error = XFS_ERROR(EFSCORRUPTED);
+			goto done;
+		}
+		level = INT_GET(par_node->hdr.level, ARCH_CONVERT);
+		for (entno = 0;
+		     entno < INT_GET(par_node->hdr.count, ARCH_CONVERT) &&
+		     INT_GET(par_node->btree[entno].hashval, ARCH_CONVERT) < dead_hash;
+		     entno++)
+			continue;
+		if (unlikely(entno == INT_GET(par_node->hdr.count, ARCH_CONVERT))) {
+			XFS_ERROR_REPORT("xfs_da_swap_lastblock(5)",
+					 XFS_ERRLEVEL_LOW, mp);
+			error = XFS_ERROR(EFSCORRUPTED);
+			goto done;
+		}
+		par_blkno = INT_GET(par_node->btree[entno].before, ARCH_CONVERT);
+		if (level == dead_level + 1)
+			break;
+		xfs_da_brelse(tp, par_buf);
+		par_buf = NULL;
+	}
+	/*
+	 * We're in the right parent block.
+	 * Look for the right entry.
+	 */
+	for (;;) {
+		for (;
+		     entno < INT_GET(par_node->hdr.count, ARCH_CONVERT) &&
+		     INT_GET(par_node->btree[entno].before, ARCH_CONVERT) != last_blkno;
+		     entno++)
+			continue;
+		if (entno < INT_GET(par_node->hdr.count, ARCH_CONVERT))
+			break;
+		par_blkno = INT_GET(par_node->hdr.info.forw, ARCH_CONVERT);
+		xfs_da_brelse(tp, par_buf);
+		par_buf = NULL;
+		if (unlikely(par_blkno == 0)) {
+			XFS_ERROR_REPORT("xfs_da_swap_lastblock(6)",
+					 XFS_ERRLEVEL_LOW, mp);
+			error = XFS_ERROR(EFSCORRUPTED);
+			goto done;
+		}
+		if ((error = xfs_da_read_buf(tp, ip, par_blkno, -1, &par_buf, w)))
+			goto done;
+		par_node = par_buf->data;
+		if (unlikely(
+		    INT_GET(par_node->hdr.level, ARCH_CONVERT) != level ||
+		    INT_GET(par_node->hdr.info.magic, ARCH_CONVERT) != XFS_DA_NODE_MAGIC)) {
+			XFS_ERROR_REPORT("xfs_da_swap_lastblock(7)",
+					 XFS_ERRLEVEL_LOW, mp);
+			error = XFS_ERROR(EFSCORRUPTED);
+			goto done;
+		}
+		entno = 0;
+	}
+	/*
+	 * Update the parent entry pointing to the moved block.
+	 */
+	INT_SET(par_node->btree[entno].before, ARCH_CONVERT, dead_blkno);
+	xfs_da_log_buf(tp, par_buf,
+		XFS_DA_LOGRANGE(par_node, &par_node->btree[entno].before,
+				sizeof(par_node->btree[entno].before)));
+	xfs_da_buf_done(par_buf);
+	xfs_da_buf_done(dead_buf);
+	*dead_blknop = last_blkno;
+	*dead_bufp = last_buf;
+	return 0;
+done:
+	if (par_buf)
+		xfs_da_brelse(tp, par_buf);
+	if (sib_buf)
+		xfs_da_brelse(tp, sib_buf);
+	xfs_da_brelse(tp, last_buf);
+	return error;
+}
+
+/*
+ * Remove a btree block from a directory or attribute.
+ */
+int
+xfs_da_shrink_inode(xfs_da_args_t *args, xfs_dablk_t dead_blkno,
+		    xfs_dabuf_t *dead_buf)
+{
+	xfs_inode_t *dp;
+	int done, error, w, count;
+	xfs_fileoff_t bno;
+	xfs_fsize_t size;
+	xfs_trans_t *tp;
+	xfs_mount_t *mp;
+
+	dp = args->dp;
+	w = args->whichfork;
+	tp = args->trans;
+	mp = dp->i_mount;
+	if (w == XFS_DATA_FORK && XFS_DIR_IS_V2(mp))
+		count = mp->m_dirblkfsbs;
+	else
+		count = 1;
+	for (;;) {
+		/*
+		 * Remove extents.  If we get ENOSPC for a dir we have to move
+		 * the last block to the place we want to kill.
+		 */
+		if ((error = xfs_bunmapi(tp, dp, dead_blkno, count,
+				XFS_BMAPI_AFLAG(w)|XFS_BMAPI_METADATA,
+				0, args->firstblock, args->flist,
+				&done)) == ENOSPC) {
+			if (w != XFS_DATA_FORK)
+				goto done;
+			if ((error = xfs_da_swap_lastblock(args, &dead_blkno,
+					&dead_buf)))
+				goto done;
+		} else if (error)
+			goto done;
+		else
+			break;
+	}
+	ASSERT(done);
+	xfs_da_binval(tp, dead_buf);
+	/*
+	 * Adjust the directory size for version 1.
+	 */
+	if (w == XFS_DATA_FORK && XFS_DIR_IS_V1(mp)) {
+		if ((error = xfs_bmap_last_offset(tp, dp, &bno, w)))
+			return error;
+		size = XFS_FSB_TO_B(dp->i_mount, bno);
+		if (size != dp->i_d.di_size) {
+			dp->i_d.di_size = size;
+			xfs_trans_log_inode(tp, dp, XFS_ILOG_CORE);
+		}
+	}
+	return 0;
+done:
+	xfs_da_binval(tp, dead_buf);
+	return error;
+}
+
+/*
+ * See if the mapping(s) for this btree block are valid, i.e.
+ * don't contain holes, are logically contiguous, and cover the whole range.
+ */
+STATIC int
+xfs_da_map_covers_blocks(
+	int		nmap,
+	xfs_bmbt_irec_t	*mapp,
+	xfs_dablk_t	bno,
+	int		count)
+{
+	int		i;
+	xfs_fileoff_t	off;
+
+	for (i = 0, off = bno; i < nmap; i++) {
+		if (mapp[i].br_startblock == HOLESTARTBLOCK ||
+		    mapp[i].br_startblock == DELAYSTARTBLOCK) {
+			return 0;
+		}
+		if (off != mapp[i].br_startoff) {
+			return 0;
+		}
+		off += mapp[i].br_blockcount;
+	}
+	return off == bno + count;
+}
+
+/*
+ * Make a dabuf.
+ * Used for get_buf, read_buf, read_bufr, and reada_buf.
+ */
+STATIC int
+xfs_da_do_buf(
+	xfs_trans_t	*trans,
+	xfs_inode_t	*dp,
+	xfs_dablk_t	bno,
+	xfs_daddr_t	*mappedbnop,
+	xfs_dabuf_t	**bpp,
+	int		whichfork,
+	int		caller,
+	inst_t		*ra)
+{
+	xfs_buf_t	*bp = NULL;
+	xfs_buf_t	**bplist;
+	int		error=0;
+	int		i;
+	xfs_bmbt_irec_t	map;
+	xfs_bmbt_irec_t	*mapp;
+	xfs_daddr_t	mappedbno;
+	xfs_mount_t	*mp;
+	int		nbplist=0;
+	int		nfsb;
+	int		nmap;
+	xfs_dabuf_t	*rbp;
+
+	mp = dp->i_mount;
+	if (whichfork == XFS_DATA_FORK && XFS_DIR_IS_V2(mp))
+		nfsb = mp->m_dirblkfsbs;
+	else
+		nfsb = 1;
+	mappedbno = *mappedbnop;
+	/*
+	 * Caller doesn't have a mapping.  -2 means don't complain
+	 * if we land in a hole.
+	 */
+	if (mappedbno == -1 || mappedbno == -2) {
+		/*
+		 * Optimize the one-block case.
+		 */
+		if (nfsb == 1) {
+			xfs_fsblock_t	fsb;
+
+			if ((error =
+			    xfs_bmapi_single(trans, dp, whichfork, &fsb,
+				    (xfs_fileoff_t)bno))) {
+				return error;
+			}
+			mapp = &map;
+			if (fsb == NULLFSBLOCK) {
+				nmap = 0;
+			} else {
+				map.br_startblock = fsb;
+				map.br_startoff = (xfs_fileoff_t)bno;
+				map.br_blockcount = 1;
+				nmap = 1;
+			}
+		} else {
+			mapp = kmem_alloc(sizeof(*mapp) * nfsb, KM_SLEEP);
+			nmap = nfsb;
+			if ((error = xfs_bmapi(trans, dp, (xfs_fileoff_t)bno,
+					nfsb,
+					XFS_BMAPI_METADATA |
+						XFS_BMAPI_AFLAG(whichfork),
+					NULL, 0, mapp, &nmap, NULL)))
+				goto exit0;
+		}
+	} else {
+		map.br_startblock = XFS_DADDR_TO_FSB(mp, mappedbno);
+		map.br_startoff = (xfs_fileoff_t)bno;
+		map.br_blockcount = nfsb;
+		mapp = &map;
+		nmap = 1;
+	}
+	if (!xfs_da_map_covers_blocks(nmap, mapp, bno, nfsb)) {
+		error = mappedbno == -2 ? 0 : XFS_ERROR(EFSCORRUPTED);
+		if (unlikely(error == EFSCORRUPTED)) {
+			if (xfs_error_level >= XFS_ERRLEVEL_LOW) {
+				int	i;
+				cmn_err(CE_ALERT, "xfs_da_do_buf: bno %lld\n",
+					(long long)bno);
+				cmn_err(CE_ALERT, "dir: inode %lld\n",
+					(long long)dp->i_ino);
+				for (i = 0; i < nmap; i++) {
+					cmn_err(CE_ALERT,
+						"[%02d] br_startoff %lld br_startblock %lld br_blockcount %lld br_state %d\n",
+						i,
+						(long long)mapp[i].br_startoff,
+						(long long)mapp[i].br_startblock,
+						(long long)mapp[i].br_blockcount,
+						mapp[i].br_state);
+				}
+			}
+			XFS_ERROR_REPORT("xfs_da_do_buf(1)",
+					 XFS_ERRLEVEL_LOW, mp);
+		}
+		goto exit0;
+	}
+	if (caller != 3 && nmap > 1) {
+		bplist = kmem_alloc(sizeof(*bplist) * nmap, KM_SLEEP);
+		nbplist = 0;
+	} else
+		bplist = NULL;
+	/*
+	 * Turn the mapping(s) into buffer(s).
+	 */
+	for (i = 0; i < nmap; i++) {
+		int	nmapped;
+
+		mappedbno = XFS_FSB_TO_DADDR(mp, mapp[i].br_startblock);
+		if (i == 0)
+			*mappedbnop = mappedbno;
+		nmapped = (int)XFS_FSB_TO_BB(mp, mapp[i].br_blockcount);
+		switch (caller) {
+		case 0:
+			bp = xfs_trans_get_buf(trans, mp->m_ddev_targp,
+				mappedbno, nmapped, 0);
+			error = bp ? XFS_BUF_GETERROR(bp) : XFS_ERROR(EIO);
+			break;
+		case 1:
+#ifndef __KERNEL__
+		case 2:
+#endif
+			bp = NULL;
+			error = xfs_trans_read_buf(mp, trans, mp->m_ddev_targp,
+				mappedbno, nmapped, 0, &bp);
+			break;
+#ifdef __KERNEL__
+		case 3:
+			xfs_baread(mp->m_ddev_targp, mappedbno, nmapped);
+			error = 0;
+			bp = NULL;
+			break;
+#endif
+		}
+		if (error) {
+			if (bp)
+				xfs_trans_brelse(trans, bp);
+			goto exit1;
+		}
+		if (!bp)
+			continue;
+		if (caller == 1) {
+			if (whichfork == XFS_ATTR_FORK) {
+				XFS_BUF_SET_VTYPE_REF(bp, B_FS_ATTR_BTREE,
+						XFS_ATTR_BTREE_REF);
+			} else {
+				XFS_BUF_SET_VTYPE_REF(bp, B_FS_DIR_BTREE,
+						XFS_DIR_BTREE_REF);
+			}
+		}
+		if (bplist) {
+			bplist[nbplist++] = bp;
+		}
+	}
+	/*
+	 * Build a dabuf structure.
+	 */
+	if (bplist) {
+		rbp = xfs_da_buf_make(nbplist, bplist, ra);
+	} else if (bp)
+		rbp = xfs_da_buf_make(1, &bp, ra);
+	else
+		rbp = NULL;
+	/*
+	 * For read_buf, check the magic number.
+	 */
+	if (caller == 1) {
+		xfs_dir2_data_t		*data;
+		xfs_dir2_free_t		*free;
+		xfs_da_blkinfo_t	*info;
+		uint			magic, magic1;
+
+		info = rbp->data;
+		data = rbp->data;
+		free = rbp->data;
+		magic = INT_GET(info->magic, ARCH_CONVERT);
+		magic1 = INT_GET(data->hdr.magic, ARCH_CONVERT);
+		if (unlikely(
+		    XFS_TEST_ERROR((magic != XFS_DA_NODE_MAGIC) &&
+				   (magic != XFS_DIR_LEAF_MAGIC) &&
+				   (magic != XFS_ATTR_LEAF_MAGIC) &&
+				   (magic != XFS_DIR2_LEAF1_MAGIC) &&
+				   (magic != XFS_DIR2_LEAFN_MAGIC) &&
+				   (magic1 != XFS_DIR2_BLOCK_MAGIC) &&
+				   (magic1 != XFS_DIR2_DATA_MAGIC) &&
+				   (INT_GET(free->hdr.magic, ARCH_CONVERT) != XFS_DIR2_FREE_MAGIC),
+				mp, XFS_ERRTAG_DA_READ_BUF,
+				XFS_RANDOM_DA_READ_BUF))) {
+			xfs_buftrace("DA READ ERROR", rbp->bps[0]);
+			XFS_CORRUPTION_ERROR("xfs_da_do_buf(2)",
+					     XFS_ERRLEVEL_LOW, mp, info);
+			error = XFS_ERROR(EFSCORRUPTED);
+			xfs_da_brelse(trans, rbp);
+			nbplist = 0;
+			goto exit1;
+		}
+	}
+	if (bplist) {
+		kmem_free(bplist, sizeof(*bplist) * nmap);
+	}
+	if (mapp != &map) {
+		kmem_free(mapp, sizeof(*mapp) * nfsb);
+	}
+	if (bpp)
+		*bpp = rbp;
+	return 0;
+exit1:
+	if (bplist) {
+		for (i = 0; i < nbplist; i++)
+			xfs_trans_brelse(trans, bplist[i]);
+		kmem_free(bplist, sizeof(*bplist) * nmap);
+	}
+exit0:
+	if (mapp != &map)
+		kmem_free(mapp, sizeof(*mapp) * nfsb);
+	if (bpp)
+		*bpp = NULL;
+	return error;
+}
+
+/*
+ * Get a buffer for the dir/attr block.
+ */
+int
+xfs_da_get_buf(
+	xfs_trans_t	*trans,
+	xfs_inode_t	*dp,
+	xfs_dablk_t	bno,
+	xfs_daddr_t		mappedbno,
+	xfs_dabuf_t	**bpp,
+	int		whichfork)
+{
+	return xfs_da_do_buf(trans, dp, bno, &mappedbno, bpp, whichfork, 0,
+						 (inst_t *)__return_address);
+}
+
+/*
+ * Get a buffer for the dir/attr block, fill in the contents.
+ */
+int
+xfs_da_read_buf(
+	xfs_trans_t	*trans,
+	xfs_inode_t	*dp,
+	xfs_dablk_t	bno,
+	xfs_daddr_t		mappedbno,
+	xfs_dabuf_t	**bpp,
+	int		whichfork)
+{
+	return xfs_da_do_buf(trans, dp, bno, &mappedbno, bpp, whichfork, 1,
+		(inst_t *)__return_address);
+}
+
+/*
+ * Readahead the dir/attr block.
+ */
+xfs_daddr_t
+xfs_da_reada_buf(
+	xfs_trans_t	*trans,
+	xfs_inode_t	*dp,
+	xfs_dablk_t	bno,
+	int		whichfork)
+{
+	xfs_daddr_t		rval;
+
+	rval = -1;
+	if (xfs_da_do_buf(trans, dp, bno, &rval, NULL, whichfork, 3,
+			(inst_t *)__return_address))
+		return -1;
+	else
+		return rval;
+}
+
+/*
+ * Calculate the number of bits needed to hold i different values.
+ */
+uint
+xfs_da_log2_roundup(uint i)
+{
+	uint rval;
+
+	for (rval = 0; rval < NBBY * sizeof(i); rval++) {
+		if ((1 << rval) >= i)
+			break;
+	}
+	return(rval);
+}
+
+kmem_zone_t *xfs_da_state_zone;	/* anchor for state struct zone */
+kmem_zone_t *xfs_dabuf_zone;		/* dabuf zone */
+
+/*
+ * Allocate a dir-state structure.
+ * We don't put them on the stack since they're large.
+ */
+xfs_da_state_t *
+xfs_da_state_alloc(void)
+{
+	return kmem_zone_zalloc(xfs_da_state_zone, KM_SLEEP);
+}
+
+/*
+ * Kill the altpath contents of a da-state structure.
+ */
+void
+xfs_da_state_kill_altpath(xfs_da_state_t *state)
+{
+	int	i;
+
+	for (i = 0; i < state->altpath.active; i++) {
+		if (state->altpath.blk[i].bp) {
+			if (state->altpath.blk[i].bp != state->path.blk[i].bp)
+				xfs_da_buf_done(state->altpath.blk[i].bp);
+			state->altpath.blk[i].bp = NULL;
+		}
+	}
+	state->altpath.active = 0;
+}
+
+/*
+ * Free a da-state structure.
+ */
+void
+xfs_da_state_free(xfs_da_state_t *state)
+{
+	int	i;
+
+	xfs_da_state_kill_altpath(state);
+	for (i = 0; i < state->path.active; i++) {
+		if (state->path.blk[i].bp)
+			xfs_da_buf_done(state->path.blk[i].bp);
+	}
+	if (state->extravalid && state->extrablk.bp)
+		xfs_da_buf_done(state->extrablk.bp);
+#ifdef DEBUG
+	memset((char *)state, 0, sizeof(*state));
+#endif /* DEBUG */
+	kmem_zone_free(xfs_da_state_zone, state);
+}
+
+#ifdef XFS_DABUF_DEBUG
+xfs_dabuf_t	*xfs_dabuf_global_list;
+lock_t		xfs_dabuf_global_lock;
+#endif
+
+/*
+ * Create a dabuf.
+ */
+/* ARGSUSED */
+STATIC xfs_dabuf_t *
+xfs_da_buf_make(int nbuf, xfs_buf_t **bps, inst_t *ra)
+{
+	xfs_buf_t	*bp;
+	xfs_dabuf_t	*dabuf;
+	int		i;
+	int		off;
+
+	if (nbuf == 1)
+		dabuf = kmem_zone_alloc(xfs_dabuf_zone, KM_SLEEP);
+	else
+		dabuf = kmem_alloc(XFS_DA_BUF_SIZE(nbuf), KM_SLEEP);
+	dabuf->dirty = 0;
+#ifdef XFS_DABUF_DEBUG
+	dabuf->ra = ra;
+	dabuf->target = XFS_BUF_TARGET(bps[0]);
+	dabuf->blkno = XFS_BUF_ADDR(bps[0]);
+#endif
+	if (nbuf == 1) {
+		dabuf->nbuf = 1;
+		bp = bps[0];
+		dabuf->bbcount = (short)BTOBB(XFS_BUF_COUNT(bp));
+		dabuf->data = XFS_BUF_PTR(bp);
+		dabuf->bps[0] = bp;
+	} else {
+		dabuf->nbuf = nbuf;
+		for (i = 0, dabuf->bbcount = 0; i < nbuf; i++) {
+			dabuf->bps[i] = bp = bps[i];
+			dabuf->bbcount += BTOBB(XFS_BUF_COUNT(bp));
+		}
+		dabuf->data = kmem_alloc(BBTOB(dabuf->bbcount), KM_SLEEP);
+		for (i = off = 0; i < nbuf; i++, off += XFS_BUF_COUNT(bp)) {
+			bp = bps[i];
+			memcpy((char *)dabuf->data + off, XFS_BUF_PTR(bp),
+				XFS_BUF_COUNT(bp));
+		}
+	}
+#ifdef XFS_DABUF_DEBUG
+	{
+		SPLDECL(s);
+		xfs_dabuf_t	*p;
+
+		s = mutex_spinlock(&xfs_dabuf_global_lock);
+		for (p = xfs_dabuf_global_list; p; p = p->next) {
+			ASSERT(p->blkno != dabuf->blkno ||
+			       p->target != dabuf->target);
+		}
+		dabuf->prev = NULL;
+		if (xfs_dabuf_global_list)
+			xfs_dabuf_global_list->prev = dabuf;
+		dabuf->next = xfs_dabuf_global_list;
+		xfs_dabuf_global_list = dabuf;
+		mutex_spinunlock(&xfs_dabuf_global_lock, s);
+	}
+#endif
+	return dabuf;
+}
+
+/*
+ * Un-dirty a dabuf.
+ */
+STATIC void
+xfs_da_buf_clean(xfs_dabuf_t *dabuf)
+{
+	xfs_buf_t	*bp;
+	int		i;
+	int		off;
+
+	if (dabuf->dirty) {
+		ASSERT(dabuf->nbuf > 1);
+		dabuf->dirty = 0;
+		for (i = off = 0; i < dabuf->nbuf;
+				i++, off += XFS_BUF_COUNT(bp)) {
+			bp = dabuf->bps[i];
+			memcpy(XFS_BUF_PTR(bp), (char *)dabuf->data + off,
+				XFS_BUF_COUNT(bp));
+		}
+	}
+}
+
+/*
+ * Release a dabuf.
+ */
+void
+xfs_da_buf_done(xfs_dabuf_t *dabuf)
+{
+	ASSERT(dabuf);
+	ASSERT(dabuf->nbuf && dabuf->data && dabuf->bbcount && dabuf->bps[0]);
+	if (dabuf->dirty)
+		xfs_da_buf_clean(dabuf);
+	if (dabuf->nbuf > 1)
+		kmem_free(dabuf->data, BBTOB(dabuf->bbcount));
+#ifdef XFS_DABUF_DEBUG
+	{
+		SPLDECL(s);
+
+		s = mutex_spinlock(&xfs_dabuf_global_lock);
+		if (dabuf->prev)
+			dabuf->prev->next = dabuf->next;
+		else
+			xfs_dabuf_global_list = dabuf->next;
+		if (dabuf->next)
+			dabuf->next->prev = dabuf->prev;
+		mutex_spinunlock(&xfs_dabuf_global_lock, s);
+	}
+	memset(dabuf, 0, XFS_DA_BUF_SIZE(dabuf->nbuf));
+#endif
+	if (dabuf->nbuf == 1)
+		kmem_zone_free(xfs_dabuf_zone, dabuf);
+	else
+		kmem_free(dabuf, XFS_DA_BUF_SIZE(dabuf->nbuf));
+}
+
+/*
+ * Log transaction from a dabuf.
+ */
+void
+xfs_da_log_buf(xfs_trans_t *tp, xfs_dabuf_t *dabuf, uint first, uint last)
+{
+	xfs_buf_t	*bp;
+	uint		f;
+	int		i;
+	uint		l;
+	int		off;
+
+	ASSERT(dabuf->nbuf && dabuf->data && dabuf->bbcount && dabuf->bps[0]);
+	if (dabuf->nbuf == 1) {
+		ASSERT(dabuf->data == (void *)XFS_BUF_PTR(dabuf->bps[0]));
+		xfs_trans_log_buf(tp, dabuf->bps[0], first, last);
+		return;
+	}
+	dabuf->dirty = 1;
+	ASSERT(first <= last);
+	for (i = off = 0; i < dabuf->nbuf; i++, off += XFS_BUF_COUNT(bp)) {
+		bp = dabuf->bps[i];
+		f = off;
+		l = f + XFS_BUF_COUNT(bp) - 1;
+		if (f < first)
+			f = first;
+		if (l > last)
+			l = last;
+		if (f <= l)
+			xfs_trans_log_buf(tp, bp, f - off, l - off);
+		/*
+		 * B_DONE is set by xfs_trans_log buf.
+		 * If we don't set it on a new buffer (get not read)
+		 * then if we don't put anything in the buffer it won't
+		 * be set, and at commit it it released into the cache,
+		 * and then a read will fail.
+		 */
+		else if (!(XFS_BUF_ISDONE(bp)))
+		  XFS_BUF_DONE(bp);
+	}
+	ASSERT(last < off);
+}
+
+/*
+ * Release dabuf from a transaction.
+ * Have to free up the dabuf before the buffers are released,
+ * since the synchronization on the dabuf is really the lock on the buffer.
+ */
+void
+xfs_da_brelse(xfs_trans_t *tp, xfs_dabuf_t *dabuf)
+{
+	xfs_buf_t	*bp;
+	xfs_buf_t	**bplist;
+	int		i;
+	int		nbuf;
+
+	ASSERT(dabuf->nbuf && dabuf->data && dabuf->bbcount && dabuf->bps[0]);
+	if ((nbuf = dabuf->nbuf) == 1) {
+		bplist = &bp;
+		bp = dabuf->bps[0];
+	} else {
+		bplist = kmem_alloc(nbuf * sizeof(*bplist), KM_SLEEP);
+		memcpy(bplist, dabuf->bps, nbuf * sizeof(*bplist));
+	}
+	xfs_da_buf_done(dabuf);
+	for (i = 0; i < nbuf; i++)
+		xfs_trans_brelse(tp, bplist[i]);
+	if (bplist != &bp)
+		kmem_free(bplist, nbuf * sizeof(*bplist));
+}
+
+/*
+ * Invalidate dabuf from a transaction.
+ */
+void
+xfs_da_binval(xfs_trans_t *tp, xfs_dabuf_t *dabuf)
+{
+	xfs_buf_t	*bp;
+	xfs_buf_t	**bplist;
+	int		i;
+	int		nbuf;
+
+	ASSERT(dabuf->nbuf && dabuf->data && dabuf->bbcount && dabuf->bps[0]);
+	if ((nbuf = dabuf->nbuf) == 1) {
+		bplist = &bp;
+		bp = dabuf->bps[0];
+	} else {
+		bplist = kmem_alloc(nbuf * sizeof(*bplist), KM_SLEEP);
+		memcpy(bplist, dabuf->bps, nbuf * sizeof(*bplist));
+	}
+	xfs_da_buf_done(dabuf);
+	for (i = 0; i < nbuf; i++)
+		xfs_trans_binval(tp, bplist[i]);
+	if (bplist != &bp)
+		kmem_free(bplist, nbuf * sizeof(*bplist));
+}
+
+/*
+ * Get the first daddr from a dabuf.
+ */
+xfs_daddr_t
+xfs_da_blkno(xfs_dabuf_t *dabuf)
+{
+	ASSERT(dabuf->nbuf);
+	ASSERT(dabuf->data);
+	return XFS_BUF_ADDR(dabuf->bps[0]);
+}
diff --git a/fs/xfs/xfs_da_btree.h b/fs/xfs/xfs_da_btree.h
new file mode 100644
index 00000000000000..9fc699d9699575
--- /dev/null
+++ b/fs/xfs/xfs_da_btree.h
@@ -0,0 +1,335 @@
+/*
+ * Copyright (c) 2000, 2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_DA_BTREE_H__
+#define	__XFS_DA_BTREE_H__
+
+struct xfs_buf;
+struct xfs_bmap_free;
+struct xfs_inode;
+struct xfs_mount;
+struct xfs_trans;
+struct zone;
+
+/*========================================================================
+ * Directory Structure when greater than XFS_LBSIZE(mp) bytes.
+ *========================================================================*/
+
+/*
+ * This structure is common to both leaf nodes and non-leaf nodes in the Btree.
+ *
+ * Is is used to manage a doubly linked list of all blocks at the same
+ * level in the Btree, and to identify which type of block this is.
+ */
+#define XFS_DA_NODE_MAGIC	0xfebe	/* magic number: non-leaf blocks */
+#define XFS_DIR_LEAF_MAGIC	0xfeeb	/* magic number: directory leaf blks */
+#define XFS_ATTR_LEAF_MAGIC	0xfbee	/* magic number: attribute leaf blks */
+#define	XFS_DIR2_LEAF1_MAGIC	0xd2f1	/* magic number: v2 dirlf single blks */
+#define	XFS_DIR2_LEAFN_MAGIC	0xd2ff	/* magic number: v2 dirlf multi blks */
+
+#define	XFS_DIRX_LEAF_MAGIC(mp)	\
+	(XFS_DIR_IS_V1(mp) ? XFS_DIR_LEAF_MAGIC : XFS_DIR2_LEAFN_MAGIC)
+
+typedef struct xfs_da_blkinfo {
+	xfs_dablk_t forw;			/* previous block in list */
+	xfs_dablk_t back;			/* following block in list */
+	__uint16_t magic;			/* validity check on block */
+	__uint16_t pad;				/* unused */
+} xfs_da_blkinfo_t;
+
+/*
+ * This is the structure of the root and intermediate nodes in the Btree.
+ * The leaf nodes are defined above.
+ *
+ * Entries are not packed.
+ *
+ * Since we have duplicate keys, use a binary search but always follow
+ * all match in the block, not just the first match found.
+ */
+#define	XFS_DA_NODE_MAXDEPTH	5	/* max depth of Btree */
+
+typedef struct xfs_da_intnode {
+	struct xfs_da_node_hdr {	/* constant-structure header block */
+		xfs_da_blkinfo_t info;	/* block type, links, etc. */
+		__uint16_t count;	/* count of active entries */
+		__uint16_t level;	/* level above leaves (leaf == 0) */
+	} hdr;
+	struct xfs_da_node_entry {
+		xfs_dahash_t hashval;	/* hash value for this descendant */
+		xfs_dablk_t before;	/* Btree block before this key */
+	} btree[1];			/* variable sized array of keys */
+} xfs_da_intnode_t;
+typedef struct xfs_da_node_hdr xfs_da_node_hdr_t;
+typedef struct xfs_da_node_entry xfs_da_node_entry_t;
+
+#define XFS_DA_MAXHASH	((xfs_dahash_t)-1) /* largest valid hash value */
+
+/*
+ * Macros used by directory code to interface to the filesystem.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LBSIZE)
+int xfs_lbsize(struct xfs_mount *mp);
+#define	XFS_LBSIZE(mp)			xfs_lbsize(mp)
+#else
+#define	XFS_LBSIZE(mp)	((mp)->m_sb.sb_blocksize)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LBLOG)
+int xfs_lblog(struct xfs_mount *mp);
+#define	XFS_LBLOG(mp)			xfs_lblog(mp)
+#else
+#define	XFS_LBLOG(mp)	((mp)->m_sb.sb_blocklog)
+#endif
+
+/*
+ * Macros used by directory code to interface to the kernel
+ */
+
+/*
+ * Macros used to manipulate directory off_t's
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DA_MAKE_BNOENTRY)
+__uint32_t xfs_da_make_bnoentry(struct xfs_mount *mp, xfs_dablk_t bno,
+				int entry);
+#define	XFS_DA_MAKE_BNOENTRY(mp,bno,entry)	\
+	xfs_da_make_bnoentry(mp,bno,entry)
+#else
+#define	XFS_DA_MAKE_BNOENTRY(mp,bno,entry) \
+	(((bno) << (mp)->m_dircook_elog) | (entry))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DA_MAKE_COOKIE)
+xfs_off_t xfs_da_make_cookie(struct xfs_mount *mp, xfs_dablk_t bno, int entry,
+				xfs_dahash_t hash);
+#define	XFS_DA_MAKE_COOKIE(mp,bno,entry,hash)	\
+	xfs_da_make_cookie(mp,bno,entry,hash)
+#else
+#define	XFS_DA_MAKE_COOKIE(mp,bno,entry,hash) \
+	(((xfs_off_t)XFS_DA_MAKE_BNOENTRY(mp, bno, entry) << 32) | (hash))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DA_COOKIE_HASH)
+xfs_dahash_t xfs_da_cookie_hash(struct xfs_mount *mp, xfs_off_t cookie);
+#define	XFS_DA_COOKIE_HASH(mp,cookie)		xfs_da_cookie_hash(mp,cookie)
+#else
+#define	XFS_DA_COOKIE_HASH(mp,cookie)	((xfs_dahash_t)(cookie))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DA_COOKIE_BNO)
+xfs_dablk_t xfs_da_cookie_bno(struct xfs_mount *mp, xfs_off_t cookie);
+#define	XFS_DA_COOKIE_BNO(mp,cookie)		xfs_da_cookie_bno(mp,cookie)
+#else
+#define	XFS_DA_COOKIE_BNO(mp,cookie) \
+	(((xfs_off_t)(cookie) >> 31) == -1LL ? \
+		(xfs_dablk_t)0 : \
+		(xfs_dablk_t)((xfs_off_t)(cookie) >> ((mp)->m_dircook_elog + 32)))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DA_COOKIE_ENTRY)
+int xfs_da_cookie_entry(struct xfs_mount *mp, xfs_off_t cookie);
+#define	XFS_DA_COOKIE_ENTRY(mp,cookie)		xfs_da_cookie_entry(mp,cookie)
+#else
+#define	XFS_DA_COOKIE_ENTRY(mp,cookie) \
+	(((xfs_off_t)(cookie) >> 31) == -1LL ? \
+		(xfs_dablk_t)0 : \
+		(xfs_dablk_t)(((xfs_off_t)(cookie) >> 32) & \
+			      ((1 << (mp)->m_dircook_elog) - 1)))
+#endif
+
+
+/*========================================================================
+ * Btree searching and modification structure definitions.
+ *========================================================================*/
+
+/*
+ * Structure to ease passing around component names.
+ */
+typedef struct xfs_da_args {
+	uchar_t		*name;		/* string (maybe not NULL terminated) */
+	int		namelen;	/* length of string (maybe no NULL) */
+	uchar_t		*value;		/* set of bytes (maybe contain NULLs) */
+	int		valuelen;	/* length of value */
+	int		flags;		/* argument flags (eg: ATTR_NOCREATE) */
+	xfs_dahash_t	hashval;	/* hash value of name */
+	xfs_ino_t	inumber;	/* input/output inode number */
+	struct xfs_inode *dp;		/* directory inode to manipulate */
+	xfs_fsblock_t	*firstblock;	/* ptr to firstblock for bmap calls */
+	struct xfs_bmap_free *flist;	/* ptr to freelist for bmap_finish */
+	struct xfs_trans *trans;	/* current trans (changes over time) */
+	xfs_extlen_t	total;		/* total blocks needed, for 1st bmap */
+	int		whichfork;	/* data or attribute fork */
+	xfs_dablk_t	blkno;		/* blkno of attr leaf of interest */
+	int		index;		/* index of attr of interest in blk */
+	xfs_dablk_t	rmtblkno;	/* remote attr value starting blkno */
+	int		rmtblkcnt;	/* remote attr value block count */
+	xfs_dablk_t	blkno2;		/* blkno of 2nd attr leaf of interest */
+	int		index2;		/* index of 2nd attr in blk */
+	xfs_dablk_t	rmtblkno2;	/* remote attr value starting blkno */
+	int		rmtblkcnt2;	/* remote attr value block count */
+	unsigned char	justcheck;	/* T/F: check for ok with no space */
+	unsigned char	rename;		/* T/F: this is an atomic rename op */
+	unsigned char	addname;	/* T/F: this is an add operation */
+	unsigned char	oknoent;	/* T/F: ok to return ENOENT, else die */
+} xfs_da_args_t;
+
+/*
+ * Structure to describe buffer(s) for a block.
+ * This is needed in the directory version 2 format case, when
+ * multiple non-contiguous fsblocks might be needed to cover one
+ * logical directory block.
+ * If the buffer count is 1 then the data pointer points to the
+ * same place as the b_addr field for the buffer, else to kmem_alloced memory.
+ */
+typedef struct xfs_dabuf {
+	int		nbuf;		/* number of buffer pointers present */
+	short		dirty;		/* data needs to be copied back */
+	short		bbcount;	/* how large is data in bbs */
+	void		*data;		/* pointer for buffers' data */
+#ifdef XFS_DABUF_DEBUG
+	inst_t		*ra;		/* return address of caller to make */
+	struct xfs_dabuf *next;		/* next in global chain */
+	struct xfs_dabuf *prev;		/* previous in global chain */
+	struct xfs_buftarg *target;	/* device for buffer */
+	xfs_daddr_t	blkno;		/* daddr first in bps[0] */
+#endif
+	struct xfs_buf	*bps[1];	/* actually nbuf of these */
+} xfs_dabuf_t;
+#define	XFS_DA_BUF_SIZE(n)	\
+	(sizeof(xfs_dabuf_t) + sizeof(struct xfs_buf *) * ((n) - 1))
+
+#ifdef XFS_DABUF_DEBUG
+extern xfs_dabuf_t	*xfs_dabuf_global_list;
+#endif
+
+/*
+ * Storage for holding state during Btree searches and split/join ops.
+ *
+ * Only need space for 5 intermediate nodes.  With a minimum of 62-way
+ * fanout to the Btree, we can support over 900 million directory blocks,
+ * which is slightly more than enough.
+ */
+typedef struct xfs_da_state_blk {
+	xfs_dabuf_t	*bp;		/* buffer containing block */
+	xfs_dablk_t	blkno;		/* filesystem blkno of buffer */
+	xfs_daddr_t	disk_blkno;	/* on-disk blkno (in BBs) of buffer */
+	int		index;		/* relevant index into block */
+	xfs_dahash_t	hashval;	/* last hash value in block */
+	int		magic;		/* blk's magic number, ie: blk type */
+} xfs_da_state_blk_t;
+
+typedef struct xfs_da_state_path {
+	int			active;		/* number of active levels */
+	xfs_da_state_blk_t	blk[XFS_DA_NODE_MAXDEPTH];
+} xfs_da_state_path_t;
+
+typedef struct xfs_da_state {
+	xfs_da_args_t		*args;		/* filename arguments */
+	struct xfs_mount	*mp;		/* filesystem mount point */
+	unsigned int		blocksize;	/* logical block size */
+	unsigned int		node_ents;	/* how many entries in danode */
+	xfs_da_state_path_t	path;		/* search/split paths */
+	xfs_da_state_path_t	altpath;	/* alternate path for join */
+	unsigned char		inleaf;		/* insert into 1->lf, 0->splf */
+	unsigned char		extravalid;	/* T/F: extrablk is in use */
+	unsigned char		extraafter;	/* T/F: extrablk is after new */
+	xfs_da_state_blk_t	extrablk;	/* for double-splits on leafs */
+						/* for dirv2 extrablk is data */
+} xfs_da_state_t;
+
+/*
+ * Utility macros to aid in logging changed structure fields.
+ */
+#define XFS_DA_LOGOFF(BASE, ADDR)	((char *)(ADDR) - (char *)(BASE))
+#define XFS_DA_LOGRANGE(BASE, ADDR, SIZE)	\
+		(uint)(XFS_DA_LOGOFF(BASE, ADDR)), \
+		(uint)(XFS_DA_LOGOFF(BASE, ADDR)+(SIZE)-1)
+
+
+#ifdef __KERNEL__
+/*========================================================================
+ * Function prototypes for the kernel.
+ *========================================================================*/
+
+/*
+ * Routines used for growing the Btree.
+ */
+int	xfs_da_node_create(xfs_da_args_t *args, xfs_dablk_t blkno, int level,
+					 xfs_dabuf_t **bpp, int whichfork);
+int	xfs_da_split(xfs_da_state_t *state);
+
+/*
+ * Routines used for shrinking the Btree.
+ */
+int	xfs_da_join(xfs_da_state_t *state);
+void	xfs_da_fixhashpath(xfs_da_state_t *state,
+					  xfs_da_state_path_t *path_to_to_fix);
+
+/*
+ * Routines used for finding things in the Btree.
+ */
+int	xfs_da_node_lookup_int(xfs_da_state_t *state, int *result);
+int	xfs_da_path_shift(xfs_da_state_t *state, xfs_da_state_path_t *path,
+					 int forward, int release, int *result);
+/*
+ * Utility routines.
+ */
+int	xfs_da_blk_unlink(xfs_da_state_t *state, xfs_da_state_blk_t *drop_blk,
+					 xfs_da_state_blk_t *save_blk);
+int	xfs_da_blk_link(xfs_da_state_t *state, xfs_da_state_blk_t *old_blk,
+				       xfs_da_state_blk_t *new_blk);
+
+/*
+ * Utility routines.
+ */
+int	xfs_da_grow_inode(xfs_da_args_t *args, xfs_dablk_t *new_blkno);
+int	xfs_da_get_buf(struct xfs_trans *trans, struct xfs_inode *dp,
+			      xfs_dablk_t bno, xfs_daddr_t mappedbno,
+			      xfs_dabuf_t **bp, int whichfork);
+int	xfs_da_read_buf(struct xfs_trans *trans, struct xfs_inode *dp,
+			       xfs_dablk_t bno, xfs_daddr_t mappedbno,
+			       xfs_dabuf_t **bpp, int whichfork);
+xfs_daddr_t	xfs_da_reada_buf(struct xfs_trans *trans, struct xfs_inode *dp,
+			xfs_dablk_t bno, int whichfork);
+int	xfs_da_shrink_inode(xfs_da_args_t *args, xfs_dablk_t dead_blkno,
+					  xfs_dabuf_t *dead_buf);
+
+uint xfs_da_hashname(uchar_t *name_string, int name_length);
+uint xfs_da_log2_roundup(uint i);
+xfs_da_state_t *xfs_da_state_alloc(void);
+void xfs_da_state_free(xfs_da_state_t *state);
+void xfs_da_state_kill_altpath(xfs_da_state_t *state);
+
+void xfs_da_buf_done(xfs_dabuf_t *dabuf);
+void xfs_da_log_buf(struct xfs_trans *tp, xfs_dabuf_t *dabuf, uint first,
+			   uint last);
+void xfs_da_brelse(struct xfs_trans *tp, xfs_dabuf_t *dabuf);
+void xfs_da_binval(struct xfs_trans *tp, xfs_dabuf_t *dabuf);
+xfs_daddr_t xfs_da_blkno(xfs_dabuf_t *dabuf);
+
+extern struct kmem_zone *xfs_da_state_zone;
+#endif	/* __KERNEL__ */
+
+#endif	/* __XFS_DA_BTREE_H__ */
diff --git a/fs/xfs/xfs_dfrag.c b/fs/xfs/xfs_dfrag.c
new file mode 100644
index 00000000000000..08d551a173478d
--- /dev/null
+++ b/fs/xfs/xfs_dfrag.c
@@ -0,0 +1,387 @@
+/*
+ * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_ag.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode_item.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_ialloc.h"
+#include "xfs_itable.h"
+#include "xfs_dfrag.h"
+#include "xfs_error.h"
+#include "xfs_mac.h"
+#include "xfs_rw.h"
+
+/*
+ * Syssgi interface for swapext
+ */
+int
+xfs_swapext(
+	xfs_swapext_t	__user *sxp)
+{
+	xfs_swapext_t	sx;
+	xfs_inode_t     *ip=NULL, *tip=NULL, *ips[2];
+	xfs_trans_t     *tp;
+	xfs_mount_t     *mp;
+	xfs_bstat_t	*sbp;
+	struct file	*fp = NULL, *tfp = NULL;
+	vnode_t		*vp, *tvp;
+	bhv_desc_t      *bdp, *tbdp;
+	vn_bhv_head_t   *bhp, *tbhp;
+	uint		lock_flags=0;
+	int		ilf_fields, tilf_fields;
+	int		error = 0;
+	xfs_ifork_t	tempif, *ifp, *tifp;
+	__uint64_t	tmp;
+	int		aforkblks = 0;
+	int		taforkblks = 0;
+	int		locked = 0;
+
+	if (copy_from_user(&sx, sxp, sizeof(sx)))
+		return XFS_ERROR(EFAULT);
+
+	/* Pull information for the target fd */
+	if (((fp = fget((int)sx.sx_fdtarget)) == NULL) ||
+	    ((vp = LINVFS_GET_VP(fp->f_dentry->d_inode)) == NULL))  {
+		error = XFS_ERROR(EINVAL);
+		goto error0;
+	}
+
+	bhp = VN_BHV_HEAD(vp);
+	bdp = vn_bhv_lookup(bhp, &xfs_vnodeops);
+	if (bdp == NULL) {
+		error = XFS_ERROR(EBADF);
+		goto error0;
+	} else {
+		ip = XFS_BHVTOI(bdp);
+	}
+
+	if (((tfp = fget((int)sx.sx_fdtmp)) == NULL) ||
+	    ((tvp = LINVFS_GET_VP(tfp->f_dentry->d_inode)) == NULL)) {
+		error = XFS_ERROR(EINVAL);
+		goto error0;
+	}
+
+	tbhp = VN_BHV_HEAD(tvp);
+	tbdp = vn_bhv_lookup(tbhp, &xfs_vnodeops);
+	if (tbdp == NULL) {
+		error = XFS_ERROR(EBADF);
+		goto error0;
+	} else {
+		tip = XFS_BHVTOI(tbdp);
+	}
+
+	if (ip->i_mount != tip->i_mount) {
+		error =  XFS_ERROR(EINVAL);
+		goto error0;
+	}
+
+	if (ip->i_ino == tip->i_ino) {
+		error =  XFS_ERROR(EINVAL);
+		goto error0;
+	}
+
+	mp = ip->i_mount;
+
+	sbp = &sx.sx_stat;
+
+	if (XFS_FORCED_SHUTDOWN(mp)) {
+		error =  XFS_ERROR(EIO);
+		goto error0;
+	}
+
+	locked = 1;
+
+	/* Lock in i_ino order */
+	if (ip->i_ino < tip->i_ino) {
+		ips[0] = ip;
+		ips[1] = tip;
+	} else {
+		ips[0] = tip;
+		ips[1] = ip;
+	}
+	lock_flags = XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL;
+	xfs_lock_inodes(ips, 2, 0, lock_flags);
+
+	/* Check permissions */
+	error = xfs_iaccess(ip, S_IWUSR, NULL);
+	if (error)
+		goto error0;
+
+	error = xfs_iaccess(tip, S_IWUSR, NULL);
+	if (error)
+		goto error0;
+
+	/* Verify that both files have the same format */
+	if ((ip->i_d.di_mode & S_IFMT) != (tip->i_d.di_mode & S_IFMT)) {
+		error = XFS_ERROR(EINVAL);
+		goto error0;
+	}
+
+	/* Verify both files are either real-time or non-realtime */
+	if ((ip->i_d.di_flags & XFS_DIFLAG_REALTIME) !=
+	    (tip->i_d.di_flags & XFS_DIFLAG_REALTIME)) {
+		error = XFS_ERROR(EINVAL);
+		goto error0;
+	}
+
+	/* Should never get a local format */
+	if (ip->i_d.di_format == XFS_DINODE_FMT_LOCAL ||
+	    tip->i_d.di_format == XFS_DINODE_FMT_LOCAL) {
+		error = XFS_ERROR(EINVAL);
+		goto error0;
+	}
+
+	if (VN_CACHED(tvp) != 0)
+		xfs_inval_cached_pages(XFS_ITOV(tip), &(tip->i_iocore),
+						(loff_t)0, 0, 0);
+
+	/* Verify O_DIRECT for ftmp */
+	if (VN_CACHED(tvp) != 0) {
+		error = XFS_ERROR(EINVAL);
+		goto error0;
+	}
+
+	/* Verify all data are being swapped */
+	if (sx.sx_offset != 0 ||
+	    sx.sx_length != ip->i_d.di_size ||
+	    sx.sx_length != tip->i_d.di_size) {
+		error = XFS_ERROR(EFAULT);
+		goto error0;
+	}
+
+	/*
+	 * If the target has extended attributes, the tmp file
+	 * must also in order to ensure the correct data fork
+	 * format.
+	 */
+	if ( XFS_IFORK_Q(ip) != XFS_IFORK_Q(tip) ) {
+		error = XFS_ERROR(EINVAL);
+		goto error0;
+	}
+
+	/*
+	 * Compare the current change & modify times with that
+	 * passed in.  If they differ, we abort this swap.
+	 * This is the mechanism used to ensure the calling
+	 * process that the file was not changed out from
+	 * under it.
+	 */
+	if ((sbp->bs_ctime.tv_sec != ip->i_d.di_ctime.t_sec) ||
+	    (sbp->bs_ctime.tv_nsec != ip->i_d.di_ctime.t_nsec) ||
+	    (sbp->bs_mtime.tv_sec != ip->i_d.di_mtime.t_sec) ||
+	    (sbp->bs_mtime.tv_nsec != ip->i_d.di_mtime.t_nsec)) {
+		error = XFS_ERROR(EBUSY);
+		goto error0;
+	}
+
+	/* We need to fail if the file is memory mapped.  Once we have tossed
+	 * all existing pages, the page fault will have no option
+	 * but to go to the filesystem for pages. By making the page fault call
+	 * VOP_READ (or write in the case of autogrow) they block on the iolock
+	 * until we have switched the extents.
+	 */
+	if (VN_MAPPED(vp)) {
+		error = XFS_ERROR(EBUSY);
+		goto error0;
+	}
+
+	xfs_iunlock(ip, XFS_ILOCK_EXCL);
+	xfs_iunlock(tip, XFS_ILOCK_EXCL);
+
+	/*
+	 * There is a race condition here since we gave up the
+	 * ilock.  However, the data fork will not change since
+	 * we have the iolock (locked for truncation too) so we
+	 * are safe.  We don't really care if non-io related
+	 * fields change.
+	 */
+
+	VOP_TOSS_PAGES(vp, 0, -1, FI_REMAPF);
+
+	tp = xfs_trans_alloc(mp, XFS_TRANS_SWAPEXT);
+	if ((error = xfs_trans_reserve(tp, 0,
+				     XFS_ICHANGE_LOG_RES(mp), 0,
+				     0, 0))) {
+		xfs_iunlock(ip,  XFS_IOLOCK_EXCL);
+		xfs_iunlock(tip, XFS_IOLOCK_EXCL);
+		xfs_trans_cancel(tp, 0);
+		return error;
+	}
+	xfs_lock_inodes(ips, 2, 0, XFS_ILOCK_EXCL);
+
+	/*
+	 * Count the number of extended attribute blocks
+	 */
+	if ( ((XFS_IFORK_Q(ip) != 0) && (ip->i_d.di_anextents > 0)) &&
+	     (ip->i_d.di_aformat != XFS_DINODE_FMT_LOCAL)) {
+		error = xfs_bmap_count_blocks(tp, ip, XFS_ATTR_FORK, &aforkblks);
+		if (error) {
+			xfs_iunlock(ip,  lock_flags);
+			xfs_iunlock(tip, lock_flags);
+			xfs_trans_cancel(tp, 0);
+			return error;
+		}
+	}
+	if ( ((XFS_IFORK_Q(tip) != 0) && (tip->i_d.di_anextents > 0)) &&
+	     (tip->i_d.di_aformat != XFS_DINODE_FMT_LOCAL)) {
+		error = xfs_bmap_count_blocks(tp, tip, XFS_ATTR_FORK,
+			&taforkblks);
+		if (error) {
+			xfs_iunlock(ip,  lock_flags);
+			xfs_iunlock(tip, lock_flags);
+			xfs_trans_cancel(tp, 0);
+			return error;
+		}
+	}
+
+	/*
+	 * Swap the data forks of the inodes
+	 */
+	ifp = &ip->i_df;
+	tifp = &tip->i_df;
+	tempif = *ifp;	/* struct copy */
+	*ifp = *tifp;	/* struct copy */
+	*tifp = tempif;	/* struct copy */
+
+	/*
+	 * Fix the on-disk inode values
+	 */
+	tmp = (__uint64_t)ip->i_d.di_nblocks;
+	ip->i_d.di_nblocks = tip->i_d.di_nblocks - taforkblks + aforkblks;
+	tip->i_d.di_nblocks = tmp + taforkblks - aforkblks;
+
+	tmp = (__uint64_t) ip->i_d.di_nextents;
+	ip->i_d.di_nextents = tip->i_d.di_nextents;
+	tip->i_d.di_nextents = tmp;
+
+	tmp = (__uint64_t) ip->i_d.di_format;
+	ip->i_d.di_format = tip->i_d.di_format;
+	tip->i_d.di_format = tmp;
+
+	ilf_fields = XFS_ILOG_CORE;
+
+	switch(ip->i_d.di_format) {
+	case XFS_DINODE_FMT_EXTENTS:
+		/* If the extents fit in the inode, fix the
+		 * pointer.  Otherwise it's already NULL or
+		 * pointing to the extent.
+		 */
+		if (ip->i_d.di_nextents <= XFS_INLINE_EXTS) {
+			ifp->if_u1.if_extents =
+				ifp->if_u2.if_inline_ext;
+		}
+		ilf_fields |= XFS_ILOG_DEXT;
+		break;
+	case XFS_DINODE_FMT_BTREE:
+		ilf_fields |= XFS_ILOG_DBROOT;
+		break;
+	}
+
+	tilf_fields = XFS_ILOG_CORE;
+
+	switch(tip->i_d.di_format) {
+	case XFS_DINODE_FMT_EXTENTS:
+		/* If the extents fit in the inode, fix the
+		 * pointer.  Otherwise it's already NULL or
+		 * pointing to the extent.
+		 */
+		if (tip->i_d.di_nextents <= XFS_INLINE_EXTS) {
+			tifp->if_u1.if_extents =
+				tifp->if_u2.if_inline_ext;
+		}
+		tilf_fields |= XFS_ILOG_DEXT;
+		break;
+	case XFS_DINODE_FMT_BTREE:
+		tilf_fields |= XFS_ILOG_DBROOT;
+		break;
+	}
+
+	/*
+	 * Increment vnode ref counts since xfs_trans_commit &
+	 * xfs_trans_cancel will both unlock the inodes and
+	 * decrement the associated ref counts.
+	 */
+	VN_HOLD(vp);
+	VN_HOLD(tvp);
+
+	xfs_trans_ijoin(tp, ip, lock_flags);
+	xfs_trans_ijoin(tp, tip, lock_flags);
+
+	xfs_trans_log_inode(tp, ip,  ilf_fields);
+	xfs_trans_log_inode(tp, tip, tilf_fields);
+
+	/*
+	 * If this is a synchronous mount, make sure that the
+	 * transaction goes to disk before returning to the user.
+	 */
+	if (mp->m_flags & XFS_MOUNT_WSYNC) {
+		xfs_trans_set_sync(tp);
+	}
+
+	error = xfs_trans_commit(tp, XFS_TRANS_SWAPEXT, NULL);
+
+	fput(fp);
+	fput(tfp);
+
+	return error;
+
+ error0:
+	if (locked) {
+		xfs_iunlock(ip,  lock_flags);
+		xfs_iunlock(tip, lock_flags);
+	}
+
+	if (fp != NULL) fput(fp);
+	if (tfp != NULL) fput(tfp);
+
+	return error;
+}
diff --git a/fs/xfs/xfs_dfrag.h b/fs/xfs/xfs_dfrag.h
new file mode 100644
index 00000000000000..904860594b8f1f
--- /dev/null
+++ b/fs/xfs/xfs_dfrag.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_DFRAG_H__
+#define	__XFS_DFRAG_H__
+
+/*
+ * Structure passed to xfs_swapext
+ */
+
+typedef struct xfs_swapext
+{
+	__int64_t	sx_version;	/* version */
+	__int64_t	sx_fdtarget;	/* fd of target file */
+	__int64_t	sx_fdtmp;	/* fd of tmp file */
+	xfs_off_t	sx_offset;	/* offset into file */
+	xfs_off_t	sx_length;	/* leng from offset */
+	char		sx_pad[16];	/* pad space, unused */
+	xfs_bstat_t	sx_stat;	/* stat of target b4 copy */
+} xfs_swapext_t;
+
+/*
+ * Version flag
+ */
+#define XFS_SX_VERSION		0
+
+#ifdef __KERNEL__
+/*
+ * Prototypes for visible xfs_dfrag.c routines.
+ */
+
+/*
+ * Syscall interface for xfs_swapext
+ */
+int	xfs_swapext(struct xfs_swapext __user *sx);
+
+#endif	/* __KERNEL__ */
+
+#endif	/* __XFS_DFRAG_H__ */
diff --git a/fs/xfs/xfs_dinode.h b/fs/xfs/xfs_dinode.h
new file mode 100644
index 00000000000000..d395f783833a16
--- /dev/null
+++ b/fs/xfs/xfs_dinode.h
@@ -0,0 +1,480 @@
+/*
+ * Copyright (c) 2000, 2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_DINODE_H__
+#define	__XFS_DINODE_H__
+
+struct xfs_buf;
+struct xfs_mount;
+
+#define	XFS_DINODE_VERSION_1	1
+#define	XFS_DINODE_VERSION_2	2
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DINODE_GOOD_VERSION)
+int xfs_dinode_good_version(int v);
+#define XFS_DINODE_GOOD_VERSION(v)	xfs_dinode_good_version(v)
+#else
+#define XFS_DINODE_GOOD_VERSION(v)	(((v) == XFS_DINODE_VERSION_1) || \
+					 ((v) == XFS_DINODE_VERSION_2))
+#endif
+#define	XFS_DINODE_MAGIC	0x494e	/* 'IN' */
+
+/*
+ * Disk inode structure.
+ * This is just the header; the inode is expanded to fill a variable size
+ * with the last field expanding.  It is split into the core and "other"
+ * because we only need the core part in the in-core inode.
+ */
+typedef struct xfs_timestamp {
+	__int32_t	t_sec;		/* timestamp seconds */
+	__int32_t	t_nsec;		/* timestamp nanoseconds */
+} xfs_timestamp_t;
+
+/*
+ * Note: Coordinate changes to this structure with the XFS_DI_* #defines
+ * below and the offsets table in xfs_ialloc_log_di().
+ */
+typedef struct xfs_dinode_core
+{
+	__uint16_t	di_magic;	/* inode magic # = XFS_DINODE_MAGIC */
+	__uint16_t	di_mode;	/* mode and type of file */
+	__int8_t	di_version;	/* inode version */
+	__int8_t	di_format;	/* format of di_c data */
+	__uint16_t	di_onlink;	/* old number of links to file */
+	__uint32_t	di_uid;		/* owner's user id */
+	__uint32_t	di_gid;		/* owner's group id */
+	__uint32_t	di_nlink;	/* number of links to file */
+	__uint16_t	di_projid;	/* owner's project id */
+	__uint8_t	di_pad[8];	/* unused, zeroed space */
+	__uint16_t	di_flushiter;	/* incremented on flush */
+	xfs_timestamp_t	di_atime;	/* time last accessed */
+	xfs_timestamp_t	di_mtime;	/* time last modified */
+	xfs_timestamp_t	di_ctime;	/* time created/inode modified */
+	xfs_fsize_t	di_size;	/* number of bytes in file */
+	xfs_drfsbno_t	di_nblocks;	/* # of direct & btree blocks used */
+	xfs_extlen_t	di_extsize;	/* basic/minimum extent size for file */
+	xfs_extnum_t	di_nextents;	/* number of extents in data fork */
+	xfs_aextnum_t	di_anextents;	/* number of extents in attribute fork*/
+	__uint8_t	di_forkoff;	/* attr fork offs, <<3 for 64b align */
+	__int8_t	di_aformat;	/* format of attr fork's data */
+	__uint32_t	di_dmevmask;	/* DMIG event mask */
+	__uint16_t	di_dmstate;	/* DMIG state info */
+	__uint16_t	di_flags;	/* random flags, XFS_DIFLAG_... */
+	__uint32_t	di_gen;		/* generation number */
+} xfs_dinode_core_t;
+
+#define DI_MAX_FLUSH 0xffff
+
+typedef struct xfs_dinode
+{
+	xfs_dinode_core_t	di_core;
+	/*
+	 * In adding anything between the core and the union, be
+	 * sure to update the macros like XFS_LITINO below and
+	 * XFS_BMAP_RBLOCK_DSIZE in xfs_bmap_btree.h.
+	 */
+	xfs_agino_t		di_next_unlinked;/* agi unlinked list ptr */
+	union {
+		xfs_bmdr_block_t di_bmbt;	/* btree root block */
+		xfs_bmbt_rec_32_t di_bmx[1];	/* extent list */
+		xfs_dir_shortform_t di_dirsf;	/* shortform directory */
+		xfs_dir2_sf_t	di_dir2sf;	/* shortform directory v2 */
+		char		di_c[1];	/* local contents */
+		xfs_dev_t	di_dev;		/* device for S_IFCHR/S_IFBLK */
+		uuid_t		di_muuid;	/* mount point value */
+		char		di_symlink[1];	/* local symbolic link */
+	}		di_u;
+	union {
+		xfs_bmdr_block_t di_abmbt;	/* btree root block */
+		xfs_bmbt_rec_32_t di_abmx[1];	/* extent list */
+		xfs_attr_shortform_t di_attrsf;	/* shortform attribute list */
+	}		di_a;
+} xfs_dinode_t;
+
+/*
+ * The 32 bit link count in the inode theoretically maxes out at UINT_MAX.
+ * Since the pathconf interface is signed, we use 2^31 - 1 instead.
+ * The old inode format had a 16 bit link count, so its maximum is USHRT_MAX.
+ */
+#define	XFS_MAXLINK		((1U << 31) - 1U)
+#define	XFS_MAXLINK_1		65535U
+
+/*
+ * Bit names for logging disk inodes only
+ */
+#define	XFS_DI_MAGIC		0x0000001
+#define	XFS_DI_MODE		0x0000002
+#define	XFS_DI_VERSION		0x0000004
+#define	XFS_DI_FORMAT		0x0000008
+#define	XFS_DI_ONLINK		0x0000010
+#define	XFS_DI_UID		0x0000020
+#define	XFS_DI_GID		0x0000040
+#define	XFS_DI_NLINK		0x0000080
+#define	XFS_DI_PROJID		0x0000100
+#define	XFS_DI_PAD		0x0000200
+#define	XFS_DI_ATIME		0x0000400
+#define	XFS_DI_MTIME		0x0000800
+#define	XFS_DI_CTIME		0x0001000
+#define	XFS_DI_SIZE		0x0002000
+#define	XFS_DI_NBLOCKS		0x0004000
+#define	XFS_DI_EXTSIZE		0x0008000
+#define	XFS_DI_NEXTENTS		0x0010000
+#define	XFS_DI_NAEXTENTS	0x0020000
+#define	XFS_DI_FORKOFF		0x0040000
+#define	XFS_DI_AFORMAT		0x0080000
+#define	XFS_DI_DMEVMASK		0x0100000
+#define	XFS_DI_DMSTATE		0x0200000
+#define	XFS_DI_FLAGS		0x0400000
+#define	XFS_DI_GEN		0x0800000
+#define	XFS_DI_NEXT_UNLINKED	0x1000000
+#define	XFS_DI_U		0x2000000
+#define	XFS_DI_A		0x4000000
+#define	XFS_DI_NUM_BITS		27
+#define	XFS_DI_ALL_BITS		((1 << XFS_DI_NUM_BITS) - 1)
+#define	XFS_DI_CORE_BITS	(XFS_DI_ALL_BITS & ~(XFS_DI_U|XFS_DI_A))
+
+/*
+ * Values for di_format
+ */
+typedef enum xfs_dinode_fmt
+{
+	XFS_DINODE_FMT_DEV,		/* CHR, BLK: di_dev */
+	XFS_DINODE_FMT_LOCAL,		/* DIR, REG: di_c */
+					/* LNK: di_symlink */
+	XFS_DINODE_FMT_EXTENTS,		/* DIR, REG, LNK: di_bmx */
+	XFS_DINODE_FMT_BTREE,		/* DIR, REG, LNK: di_bmbt */
+	XFS_DINODE_FMT_UUID		/* MNT: di_uuid */
+} xfs_dinode_fmt_t;
+
+/*
+ * Inode minimum and maximum sizes.
+ */
+#define	XFS_DINODE_MIN_LOG	8
+#define	XFS_DINODE_MAX_LOG	11
+#define	XFS_DINODE_MIN_SIZE	(1 << XFS_DINODE_MIN_LOG)
+#define	XFS_DINODE_MAX_SIZE	(1 << XFS_DINODE_MAX_LOG)
+
+/*
+ * Inode size for given fs.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LITINO)
+int xfs_litino(struct xfs_mount *mp);
+#define	XFS_LITINO(mp)		xfs_litino(mp)
+#else
+#define	XFS_LITINO(mp)	((mp)->m_litino)
+#endif
+#define	XFS_BROOT_SIZE_ADJ	\
+	(sizeof(xfs_bmbt_block_t) - sizeof(xfs_bmdr_block_t))
+
+/*
+ * Fork identifiers.  Here so utilities can use them without including
+ * xfs_inode.h.
+ */
+#define	XFS_DATA_FORK	0
+#define	XFS_ATTR_FORK	1
+
+/*
+ * Inode data & attribute fork sizes, per inode.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_CFORK_Q)
+int xfs_cfork_q_arch(xfs_dinode_core_t *dcp, xfs_arch_t arch);
+int xfs_cfork_q(xfs_dinode_core_t *dcp);
+#define	XFS_CFORK_Q_ARCH(dcp,arch)          xfs_cfork_q_arch(dcp,arch)
+#define	XFS_CFORK_Q(dcp)                    xfs_cfork_q(dcp)
+#else
+#define	XFS_CFORK_Q_ARCH(dcp,arch)	    (!INT_ISZERO((dcp)->di_forkoff, arch))
+#define XFS_CFORK_Q(dcp)                    ((dcp)->di_forkoff != 0)
+
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_CFORK_BOFF)
+int xfs_cfork_boff_arch(xfs_dinode_core_t *dcp, xfs_arch_t arch);
+int xfs_cfork_boff(xfs_dinode_core_t *dcp);
+#define	XFS_CFORK_BOFF_ARCH(dcp,arch)	    xfs_cfork_boff_arch(dcp,arch)
+#define	XFS_CFORK_BOFF(dcp)	            xfs_cfork_boff(dcp)
+#else
+#define	XFS_CFORK_BOFF_ARCH(dcp,arch)	    ((int)(INT_GET((dcp)->di_forkoff, arch) << 3))
+#define XFS_CFORK_BOFF(dcp)                 ((int)((dcp)->di_forkoff << 3))
+
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_CFORK_DSIZE)
+int xfs_cfork_dsize_arch(xfs_dinode_core_t *dcp, struct xfs_mount *mp, xfs_arch_t arch);
+int xfs_cfork_dsize(xfs_dinode_core_t *dcp, struct xfs_mount *mp);
+#define	XFS_CFORK_DSIZE_ARCH(dcp,mp,arch)   xfs_cfork_dsize_arch(dcp,mp,arch)
+#define	XFS_CFORK_DSIZE(dcp,mp)             xfs_cfork_dsize(dcp,mp)
+#else
+#define	XFS_CFORK_DSIZE_ARCH(dcp,mp,arch) \
+	(XFS_CFORK_Q_ARCH(dcp, arch) ? XFS_CFORK_BOFF_ARCH(dcp, arch) : XFS_LITINO(mp))
+#define XFS_CFORK_DSIZE(dcp,mp) \
+	(XFS_CFORK_Q(dcp) ? XFS_CFORK_BOFF(dcp) : XFS_LITINO(mp))
+
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_CFORK_ASIZE)
+int xfs_cfork_asize_arch(xfs_dinode_core_t *dcp, struct xfs_mount *mp, xfs_arch_t arch);
+int xfs_cfork_asize(xfs_dinode_core_t *dcp, struct xfs_mount *mp);
+#define	XFS_CFORK_ASIZE_ARCH(dcp,mp,arch)   xfs_cfork_asize_arch(dcp,mp,arch)
+#define	XFS_CFORK_ASIZE(dcp,mp)             xfs_cfork_asize(dcp,mp)
+#else
+#define	XFS_CFORK_ASIZE_ARCH(dcp,mp,arch) \
+	(XFS_CFORK_Q_ARCH(dcp, arch) ? XFS_LITINO(mp) - XFS_CFORK_BOFF_ARCH(dcp, arch) : 0)
+#define XFS_CFORK_ASIZE(dcp,mp) \
+	(XFS_CFORK_Q(dcp) ? XFS_LITINO(mp) - XFS_CFORK_BOFF(dcp) : 0)
+
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_CFORK_SIZE)
+int xfs_cfork_size_arch(xfs_dinode_core_t *dcp, struct xfs_mount *mp, int w, xfs_arch_t arch);
+int xfs_cfork_size(xfs_dinode_core_t *dcp, struct xfs_mount *mp, int w);
+#define	XFS_CFORK_SIZE_ARCH(dcp,mp,w,arch)  xfs_cfork_size_arch(dcp,mp,w,arch)
+#define	XFS_CFORK_SIZE(dcp,mp,w)            xfs_cfork_size(dcp,mp,w)
+#else
+#define	XFS_CFORK_SIZE_ARCH(dcp,mp,w,arch) \
+	((w) == XFS_DATA_FORK ? \
+		XFS_CFORK_DSIZE_ARCH(dcp, mp, arch) : XFS_CFORK_ASIZE_ARCH(dcp, mp, arch))
+#define XFS_CFORK_SIZE(dcp,mp,w) \
+	((w) == XFS_DATA_FORK ? \
+		XFS_CFORK_DSIZE(dcp, mp) : XFS_CFORK_ASIZE(dcp, mp))
+
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DFORK_DSIZE)
+int xfs_dfork_dsize_arch(xfs_dinode_t *dip, struct xfs_mount *mp, xfs_arch_t arch);
+int xfs_dfork_dsize(xfs_dinode_t *dip, struct xfs_mount *mp);
+#define	XFS_DFORK_DSIZE_ARCH(dip,mp,arch)   xfs_dfork_dsize_arch(dip,mp,arch)
+#define	XFS_DFORK_DSIZE(dip,mp)             xfs_dfork_dsize(dip,mp)
+#else
+#define	XFS_DFORK_DSIZE_ARCH(dip,mp,arch)   XFS_CFORK_DSIZE_ARCH(&(dip)->di_core, mp, arch)
+#define XFS_DFORK_DSIZE(dip,mp)             XFS_DFORK_DSIZE_ARCH(dip,mp,ARCH_NOCONVERT)
+
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DFORK_ASIZE)
+int xfs_dfork_asize_arch(xfs_dinode_t *dip, struct xfs_mount *mp, xfs_arch_t arch);
+int xfs_dfork_asize(xfs_dinode_t *dip, struct xfs_mount *mp);
+#define	XFS_DFORK_ASIZE_ARCH(dip,mp,arch)   xfs_dfork_asize_arch(dip,mp,arch)
+#define	XFS_DFORK_ASIZE(dip,mp)             xfs_dfork_asize(dip,mp)
+#else
+#define	XFS_DFORK_ASIZE_ARCH(dip,mp,arch)   XFS_CFORK_ASIZE_ARCH(&(dip)->di_core, mp, arch)
+#define XFS_DFORK_ASIZE(dip,mp)             XFS_DFORK_ASIZE_ARCH(dip,mp,ARCH_NOCONVERT)
+
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DFORK_SIZE)
+int xfs_dfork_size_arch(xfs_dinode_t *dip, struct xfs_mount *mp, int w, xfs_arch_t arch);
+int xfs_dfork_size(xfs_dinode_t *dip, struct xfs_mount *mp, int w);
+#define	XFS_DFORK_SIZE_ARCH(dip,mp,w,arch)  xfs_dfork_size_arch(dip,mp,w,arch)
+#define	XFS_DFORK_SIZE(dip,mp,w)            xfs_dfork_size(dip,mp,w)
+#else
+#define	XFS_DFORK_SIZE_ARCH(dip,mp,w,arch)  XFS_CFORK_SIZE_ARCH(&(dip)->di_core, mp, w, arch)
+#define XFS_DFORK_SIZE(dip,mp,w)            XFS_DFORK_SIZE_ARCH(dip,mp,w,ARCH_NOCONVERT)
+
+#endif
+
+/*
+ * Macros for accessing per-fork disk inode information.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DFORK_Q)
+int xfs_dfork_q_arch(xfs_dinode_t *dip, xfs_arch_t arch);
+int xfs_dfork_q(xfs_dinode_t *dip);
+#define	XFS_DFORK_Q_ARCH(dip,arch)	    xfs_dfork_q_arch(dip,arch)
+#define	XFS_DFORK_Q(dip)	            xfs_dfork_q(dip)
+#else
+#define	XFS_DFORK_Q_ARCH(dip,arch)	    XFS_CFORK_Q_ARCH(&(dip)->di_core, arch)
+#define XFS_DFORK_Q(dip)                    XFS_DFORK_Q_ARCH(dip,ARCH_NOCONVERT)
+
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DFORK_BOFF)
+int xfs_dfork_boff_arch(xfs_dinode_t *dip, xfs_arch_t arch);
+int xfs_dfork_boff(xfs_dinode_t *dip);
+#define	XFS_DFORK_BOFF_ARCH(dip,arch)	    xfs_dfork_boff_arch(dip,arch)
+#define	XFS_DFORK_BOFF(dip)	            xfs_dfork_boff(dip)
+#else
+#define	XFS_DFORK_BOFF_ARCH(dip,arch)	    XFS_CFORK_BOFF_ARCH(&(dip)->di_core, arch)
+#define XFS_DFORK_BOFF(dip)                 XFS_DFORK_BOFF_ARCH(dip,ARCH_NOCONVERT)
+
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DFORK_DPTR)
+char *xfs_dfork_dptr_arch(xfs_dinode_t *dip, xfs_arch_t arch);
+char *xfs_dfork_dptr(xfs_dinode_t *dip);
+#define	XFS_DFORK_DPTR_ARCH(dip,arch)	    xfs_dfork_dptr_arch(dip,arch)
+#define	XFS_DFORK_DPTR(dip)	            xfs_dfork_dptr(dip)
+#else
+#define	XFS_DFORK_DPTR_ARCH(dip,arch)	    ((dip)->di_u.di_c)
+#define XFS_DFORK_DPTR(dip)                 XFS_DFORK_DPTR_ARCH(dip,ARCH_NOCONVERT)
+
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DFORK_APTR)
+char *xfs_dfork_aptr_arch(xfs_dinode_t *dip, xfs_arch_t arch);
+char *xfs_dfork_aptr(xfs_dinode_t *dip);
+#define	XFS_DFORK_APTR_ARCH(dip,arch)       xfs_dfork_aptr_arch(dip,arch)
+#define	XFS_DFORK_APTR(dip)                 xfs_dfork_aptr(dip)
+#else
+#define	XFS_DFORK_APTR_ARCH(dip,arch)	    ((dip)->di_u.di_c + XFS_DFORK_BOFF_ARCH(dip, arch))
+#define XFS_DFORK_APTR(dip)                 XFS_DFORK_APTR_ARCH(dip,ARCH_NOCONVERT)
+
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DFORK_PTR)
+char *xfs_dfork_ptr_arch(xfs_dinode_t *dip, int w, xfs_arch_t arch);
+char *xfs_dfork_ptr(xfs_dinode_t *dip, int w);
+#define	XFS_DFORK_PTR_ARCH(dip,w,arch)      xfs_dfork_ptr_arch(dip,w,arch)
+#define	XFS_DFORK_PTR(dip,w)                xfs_dfork_ptr(dip,w)
+#else
+#define	XFS_DFORK_PTR_ARCH(dip,w,arch)	\
+	((w) == XFS_DATA_FORK ? XFS_DFORK_DPTR_ARCH(dip, arch) : XFS_DFORK_APTR_ARCH(dip, arch))
+#define XFS_DFORK_PTR(dip,w)                XFS_DFORK_PTR_ARCH(dip,w,ARCH_NOCONVERT)
+
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_CFORK_FORMAT)
+int xfs_cfork_format_arch(xfs_dinode_core_t *dcp, int w, xfs_arch_t arch);
+int xfs_cfork_format(xfs_dinode_core_t *dcp, int w);
+#define	XFS_CFORK_FORMAT_ARCH(dcp,w,arch)   xfs_cfork_format_arch(dcp,w,arch)
+#define	XFS_CFORK_FORMAT(dcp,w)             xfs_cfork_format(dcp,w)
+#else
+#define	XFS_CFORK_FORMAT_ARCH(dcp,w,arch) \
+	((w) == XFS_DATA_FORK ? INT_GET((dcp)->di_format, arch) : INT_GET((dcp)->di_aformat, arch))
+#define XFS_CFORK_FORMAT(dcp,w)             XFS_CFORK_FORMAT_ARCH(dcp,w,ARCH_NOCONVERT)
+
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_CFORK_FMT_SET)
+void xfs_cfork_fmt_set_arch(xfs_dinode_core_t *dcp, int w, int n, xfs_arch_t arch);
+void xfs_cfork_fmt_set(xfs_dinode_core_t *dcp, int w, int n);
+#define	XFS_CFORK_FMT_SET_ARCH(dcp,w,n,arch) xfs_cfork_fmt_set_arch(dcp,w,n,arch)
+#define	XFS_CFORK_FMT_SET(dcp,w,n)           xfs_cfork_fmt_set(dcp,w,n)
+#else
+#define	XFS_CFORK_FMT_SET_ARCH(dcp,w,n,arch) \
+	((w) == XFS_DATA_FORK ? \
+		(INT_SET((dcp)->di_format, arch, (n))) : \
+		(INT_SET((dcp)->di_aformat, arch, (n))))
+#define XFS_CFORK_FMT_SET(dcp,w,n)           XFS_CFORK_FMT_SET_ARCH(dcp,w,n,ARCH_NOCONVERT)
+
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_CFORK_NEXTENTS)
+int xfs_cfork_nextents_arch(xfs_dinode_core_t *dcp, int w, xfs_arch_t arch);
+int xfs_cfork_nextents(xfs_dinode_core_t *dcp, int w);
+#define	XFS_CFORK_NEXTENTS_ARCH(dcp,w,arch)  xfs_cfork_nextents_arch(dcp,w,arch)
+#define	XFS_CFORK_NEXTENTS(dcp,w)            xfs_cfork_nextents(dcp,w)
+#else
+#define	XFS_CFORK_NEXTENTS_ARCH(dcp,w,arch) \
+	((w) == XFS_DATA_FORK ? INT_GET((dcp)->di_nextents, arch) : INT_GET((dcp)->di_anextents, arch))
+#define XFS_CFORK_NEXTENTS(dcp,w)            XFS_CFORK_NEXTENTS_ARCH(dcp,w,ARCH_NOCONVERT)
+
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_CFORK_NEXT_SET)
+void xfs_cfork_next_set_arch(xfs_dinode_core_t *dcp, int w, int n, xfs_arch_t arch);
+void xfs_cfork_next_set(xfs_dinode_core_t *dcp, int w, int n);
+#define	XFS_CFORK_NEXT_SET_ARCH(dcp,w,n,arch)	xfs_cfork_next_set_arch(dcp,w,n,arch)
+#define	XFS_CFORK_NEXT_SET(dcp,w,n)	        xfs_cfork_next_set(dcp,w,n)
+#else
+#define	XFS_CFORK_NEXT_SET_ARCH(dcp,w,n,arch) \
+	((w) == XFS_DATA_FORK ? \
+		(INT_SET((dcp)->di_nextents, arch, (n))) : \
+		(INT_SET((dcp)->di_anextents, arch, (n))))
+#define XFS_CFORK_NEXT_SET(dcp,w,n)             XFS_CFORK_NEXT_SET_ARCH(dcp,w,n,ARCH_NOCONVERT)
+
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DFORK_FORMAT)
+int xfs_dfork_format_arch(xfs_dinode_t *dip, int w, xfs_arch_t arch);
+int xfs_dfork_format(xfs_dinode_t *dip, int w);
+#define	XFS_DFORK_FORMAT_ARCH(dip,w,arch)   xfs_dfork_format_arch(dip,w,arch)
+#define	XFS_DFORK_FORMAT(dip,w)             xfs_dfork_format(dip,w)
+#else
+#define	XFS_DFORK_FORMAT_ARCH(dip,w,arch)   XFS_CFORK_FORMAT_ARCH(&(dip)->di_core, w, arch)
+#define XFS_DFORK_FORMAT(dip,w)             XFS_DFORK_FORMAT_ARCH(dip,w,ARCH_NOCONVERT)
+
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DFORK_FMT_SET)
+void xfs_dfork_fmt_set_arch(xfs_dinode_t *dip, int w, int n, xfs_arch_t arch);
+void xfs_dfork_fmt_set(xfs_dinode_t *dip, int w, int n);
+#define	XFS_DFORK_FMT_SET_ARCH(dip,w,n,arch)    xfs_dfork_fmt_set_arch(dip,w,n,arch)
+#define	XFS_DFORK_FMT_SET(dip,w,n)              xfs_dfork_fmt_set(dip,w,n)
+#else
+#define	XFS_DFORK_FMT_SET_ARCH(dip,w,n,arch)	XFS_CFORK_FMT_SET_ARCH(&(dip)->di_core, w, n, arch)
+#define XFS_DFORK_FMT_SET(dip,w,n)              XFS_DFORK_FMT_SET_ARCH(dip,w,n,ARCH_NOCONVERT)
+
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DFORK_NEXTENTS)
+int xfs_dfork_nextents_arch(xfs_dinode_t *dip, int w, xfs_arch_t arch);
+int xfs_dfork_nextents(xfs_dinode_t *dip, int w);
+#define	XFS_DFORK_NEXTENTS_ARCH(dip,w,arch) xfs_dfork_nextents_arch(dip,w,arch)
+#define	XFS_DFORK_NEXTENTS(dip,w)           xfs_dfork_nextents(dip,w)
+#else
+#define	XFS_DFORK_NEXTENTS_ARCH(dip,w,arch) XFS_CFORK_NEXTENTS_ARCH(&(dip)->di_core, w, arch)
+#define XFS_DFORK_NEXTENTS(dip,w)           XFS_DFORK_NEXTENTS_ARCH(dip,w,ARCH_NOCONVERT)
+
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DFORK_NEXT_SET)
+void xfs_dfork_next_set_arch(xfs_dinode_t *dip, int w, int n, xfs_arch_t arch);
+void xfs_dfork_next_set(xfs_dinode_t *dip, int w, int n);
+#define	XFS_DFORK_NEXT_SET_ARCH(dip,w,n,arch)   xfs_dfork_next_set_arch(dip,w,n,arch)
+#define	XFS_DFORK_NEXT_SET(dip,w,n)             xfs_dfork_next_set(dip,w,n)
+#else
+#define	XFS_DFORK_NEXT_SET_ARCH(dip,w,n,arch)	XFS_CFORK_NEXT_SET_ARCH(&(dip)->di_core, w, n, arch)
+#define XFS_DFORK_NEXT_SET(dip,w,n)             XFS_DFORK_NEXT_SET_ARCH(dip,w,n,ARCH_NOCONVERT)
+
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BUF_TO_DINODE)
+xfs_dinode_t *xfs_buf_to_dinode(struct xfs_buf *bp);
+#define	XFS_BUF_TO_DINODE(bp)	xfs_buf_to_dinode(bp)
+#else
+#define	XFS_BUF_TO_DINODE(bp)	((xfs_dinode_t *)(XFS_BUF_PTR(bp)))
+#endif
+
+/*
+ * Values for di_flags
+ * There should be a one-to-one correspondence between these flags and the
+ * XFS_XFLAG_s.
+ */
+#define XFS_DIFLAG_REALTIME_BIT  0	/* file's blocks come from rt area */
+#define XFS_DIFLAG_PREALLOC_BIT  1	/* file space has been preallocated */
+#define XFS_DIFLAG_NEWRTBM_BIT   2	/* for rtbitmap inode, new format */
+#define XFS_DIFLAG_IMMUTABLE_BIT 3	/* inode is immutable */
+#define XFS_DIFLAG_APPEND_BIT    4	/* inode is append-only */
+#define XFS_DIFLAG_SYNC_BIT      5	/* inode is written synchronously */
+#define XFS_DIFLAG_NOATIME_BIT   6	/* do not update atime */
+#define XFS_DIFLAG_NODUMP_BIT    7	/* do not dump */
+#define XFS_DIFLAG_RTINHERIT_BIT 8	/* create with realtime bit set */
+#define XFS_DIFLAG_PROJINHERIT_BIT  9	/* create with parents projid */
+#define XFS_DIFLAG_NOSYMLINKS_BIT  10	/* disallow symlink creation */
+#define XFS_DIFLAG_REALTIME      (1 << XFS_DIFLAG_REALTIME_BIT)
+#define XFS_DIFLAG_PREALLOC      (1 << XFS_DIFLAG_PREALLOC_BIT)
+#define XFS_DIFLAG_NEWRTBM       (1 << XFS_DIFLAG_NEWRTBM_BIT)
+#define XFS_DIFLAG_IMMUTABLE     (1 << XFS_DIFLAG_IMMUTABLE_BIT)
+#define XFS_DIFLAG_APPEND        (1 << XFS_DIFLAG_APPEND_BIT)
+#define XFS_DIFLAG_SYNC          (1 << XFS_DIFLAG_SYNC_BIT)
+#define XFS_DIFLAG_NOATIME       (1 << XFS_DIFLAG_NOATIME_BIT)
+#define XFS_DIFLAG_NODUMP        (1 << XFS_DIFLAG_NODUMP_BIT)
+#define XFS_DIFLAG_RTINHERIT     (1 << XFS_DIFLAG_RTINHERIT_BIT)
+#define XFS_DIFLAG_PROJINHERIT   (1 << XFS_DIFLAG_PROJINHERIT_BIT)
+#define XFS_DIFLAG_NOSYMLINKS    (1 << XFS_DIFLAG_NOSYMLINKS_BIT)
+
+#define XFS_DIFLAG_ANY \
+	(XFS_DIFLAG_REALTIME | XFS_DIFLAG_PREALLOC | XFS_DIFLAG_NEWRTBM | \
+	 XFS_DIFLAG_IMMUTABLE | XFS_DIFLAG_APPEND | XFS_DIFLAG_SYNC | \
+	 XFS_DIFLAG_NOATIME | XFS_DIFLAG_NODUMP | XFS_DIFLAG_RTINHERIT | \
+	 XFS_DIFLAG_PROJINHERIT | XFS_DIFLAG_NOSYMLINKS)
+
+#endif	/* __XFS_DINODE_H__ */
diff --git a/fs/xfs/xfs_dir.c b/fs/xfs/xfs_dir.c
new file mode 100644
index 00000000000000..3ea04f9ac2310b
--- /dev/null
+++ b/fs/xfs/xfs_dir.c
@@ -0,0 +1,1223 @@
+/*
+ * Copyright (c) 2000-2001 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_alloc.h"
+#include "xfs_btree.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_da_btree.h"
+#include "xfs_dir_leaf.h"
+#include "xfs_error.h"
+
+/*
+ * xfs_dir.c
+ *
+ * Provide the external interfaces to manage directories.
+ */
+
+/*========================================================================
+ * Function prototypes for the kernel.
+ *========================================================================*/
+
+/*
+ * Functions for the dirops interfaces.
+ */
+static void	xfs_dir_mount(struct xfs_mount *mp);
+
+static int	xfs_dir_isempty(struct xfs_inode *dp);
+
+static int	xfs_dir_init(struct xfs_trans *trans,
+			     struct xfs_inode *dir,
+			     struct xfs_inode *parent_dir);
+
+static int	xfs_dir_createname(struct xfs_trans *trans,
+				   struct xfs_inode *dp,
+				   char *name_string,
+				   int name_len,
+				   xfs_ino_t inode_number,
+				   xfs_fsblock_t *firstblock,
+				   xfs_bmap_free_t *flist,
+				   xfs_extlen_t total);
+
+static int	xfs_dir_lookup(struct xfs_trans *tp,
+			       struct xfs_inode *dp,
+			       char *name_string,
+			       int name_length,
+			       xfs_ino_t *inode_number);
+
+static int	xfs_dir_removename(struct xfs_trans *trans,
+				   struct xfs_inode *dp,
+				   char *name_string,
+				   int name_length,
+				   xfs_ino_t ino,
+				   xfs_fsblock_t *firstblock,
+				   xfs_bmap_free_t *flist,
+				   xfs_extlen_t total);
+
+static int	xfs_dir_getdents(struct xfs_trans *tp,
+				 struct xfs_inode *dp,
+				 struct uio *uiop,
+				 int *eofp);
+
+static int	xfs_dir_replace(struct xfs_trans *tp,
+				struct xfs_inode *dp,
+				char *name_string,
+				int name_length,
+				xfs_ino_t inode_number,
+				xfs_fsblock_t *firstblock,
+				xfs_bmap_free_t *flist,
+				xfs_extlen_t total);
+
+static int	xfs_dir_canenter(struct xfs_trans *tp,
+				 struct xfs_inode *dp,
+				 char *name_string,
+				 int name_length);
+
+static int	xfs_dir_shortform_validate_ondisk(xfs_mount_t *mp,
+						  xfs_dinode_t *dip);
+
+xfs_dirops_t xfsv1_dirops = {
+	.xd_mount			= xfs_dir_mount,
+	.xd_isempty			= xfs_dir_isempty,
+	.xd_init			= xfs_dir_init,
+	.xd_createname			= xfs_dir_createname,
+	.xd_lookup			= xfs_dir_lookup,
+	.xd_removename			= xfs_dir_removename,
+	.xd_getdents			= xfs_dir_getdents,
+	.xd_replace			= xfs_dir_replace,
+	.xd_canenter			= xfs_dir_canenter,
+	.xd_shortform_validate_ondisk	= xfs_dir_shortform_validate_ondisk,
+	.xd_shortform_to_single		= xfs_dir_shortform_to_leaf,
+};
+
+/*
+ * Internal routines when dirsize == XFS_LBSIZE(mp).
+ */
+STATIC int xfs_dir_leaf_lookup(xfs_da_args_t *args);
+STATIC int xfs_dir_leaf_removename(xfs_da_args_t *args, int *number_entries,
+						 int *total_namebytes);
+STATIC int xfs_dir_leaf_getdents(xfs_trans_t *trans, xfs_inode_t *dp,
+					     uio_t *uio, int *eofp,
+					     xfs_dirent_t *dbp,
+					     xfs_dir_put_t put);
+STATIC int xfs_dir_leaf_replace(xfs_da_args_t *args);
+
+/*
+ * Internal routines when dirsize > XFS_LBSIZE(mp).
+ */
+STATIC int xfs_dir_node_addname(xfs_da_args_t *args);
+STATIC int xfs_dir_node_lookup(xfs_da_args_t *args);
+STATIC int xfs_dir_node_removename(xfs_da_args_t *args);
+STATIC int xfs_dir_node_getdents(xfs_trans_t *trans, xfs_inode_t *dp,
+					     uio_t *uio, int *eofp,
+					     xfs_dirent_t *dbp,
+					     xfs_dir_put_t put);
+STATIC int xfs_dir_node_replace(xfs_da_args_t *args);
+
+#if defined(XFS_DIR_TRACE)
+ktrace_t *xfs_dir_trace_buf;
+#endif
+
+
+/*========================================================================
+ * Overall external interface routines.
+ *========================================================================*/
+
+xfs_dahash_t	xfs_dir_hash_dot, xfs_dir_hash_dotdot;
+
+/*
+ * One-time startup routine called from xfs_init().
+ */
+void
+xfs_dir_startup(void)
+{
+	xfs_dir_hash_dot = xfs_da_hashname(".", 1);
+	xfs_dir_hash_dotdot = xfs_da_hashname("..", 2);
+}
+
+/*
+ * Initialize directory-related fields in the mount structure.
+ */
+static void
+xfs_dir_mount(xfs_mount_t *mp)
+{
+	uint shortcount, leafcount, count;
+
+	mp->m_dirversion = 1;
+	shortcount = (mp->m_attroffset - (uint)sizeof(xfs_dir_sf_hdr_t)) /
+		     (uint)sizeof(xfs_dir_sf_entry_t);
+	leafcount = (XFS_LBSIZE(mp) - (uint)sizeof(xfs_dir_leaf_hdr_t)) /
+		    ((uint)sizeof(xfs_dir_leaf_entry_t) +
+		     (uint)sizeof(xfs_dir_leaf_name_t));
+	count = shortcount > leafcount ? shortcount : leafcount;
+	mp->m_dircook_elog = xfs_da_log2_roundup(count + 1);
+	ASSERT(mp->m_dircook_elog <= mp->m_sb.sb_blocklog);
+	mp->m_dir_node_ents = mp->m_attr_node_ents =
+		(XFS_LBSIZE(mp) - (uint)sizeof(xfs_da_node_hdr_t)) /
+		(uint)sizeof(xfs_da_node_entry_t);
+	mp->m_dir_magicpct = (XFS_LBSIZE(mp) * 37) / 100;
+	mp->m_dirblksize = mp->m_sb.sb_blocksize;
+	mp->m_dirblkfsbs = 1;
+}
+
+/*
+ * Return 1 if directory contains only "." and "..".
+ */
+static int
+xfs_dir_isempty(xfs_inode_t *dp)
+{
+	xfs_dir_sf_hdr_t *hdr;
+
+	ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
+	if (dp->i_d.di_size == 0)
+		return(1);
+	if (dp->i_d.di_size > XFS_IFORK_DSIZE(dp))
+		return(0);
+	hdr = (xfs_dir_sf_hdr_t *)dp->i_df.if_u1.if_data;
+	return(hdr->count == 0);
+}
+
+/*
+ * Initialize a directory with its "." and ".." entries.
+ */
+static int
+xfs_dir_init(xfs_trans_t *trans, xfs_inode_t *dir, xfs_inode_t *parent_dir)
+{
+	xfs_da_args_t args;
+	int error;
+
+	memset((char *)&args, 0, sizeof(args));
+	args.dp = dir;
+	args.trans = trans;
+
+	ASSERT((dir->i_d.di_mode & S_IFMT) == S_IFDIR);
+	if ((error = xfs_dir_ino_validate(trans->t_mountp, parent_dir->i_ino)))
+		return error;
+
+	return(xfs_dir_shortform_create(&args, parent_dir->i_ino));
+}
+
+/*
+ * Generic handler routine to add a name to a directory.
+ * Transitions directory from shortform to Btree as necessary.
+ */
+static int							/* error */
+xfs_dir_createname(xfs_trans_t *trans, xfs_inode_t *dp, char *name,
+		   int namelen, xfs_ino_t inum, xfs_fsblock_t *firstblock,
+		   xfs_bmap_free_t *flist, xfs_extlen_t total)
+{
+	xfs_da_args_t args;
+	int retval, newsize, done;
+
+	ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
+
+	if ((retval = xfs_dir_ino_validate(trans->t_mountp, inum)))
+		return (retval);
+
+	XFS_STATS_INC(xs_dir_create);
+	/*
+	 * Fill in the arg structure for this request.
+	 */
+	args.name = name;
+	args.namelen = namelen;
+	args.hashval = xfs_da_hashname(name, namelen);
+	args.inumber = inum;
+	args.dp = dp;
+	args.firstblock = firstblock;
+	args.flist = flist;
+	args.total = total;
+	args.whichfork = XFS_DATA_FORK;
+	args.trans = trans;
+	args.justcheck = 0;
+	args.addname = args.oknoent = 1;
+
+	/*
+	 * Decide on what work routines to call based on the inode size.
+	 */
+	done = 0;
+	if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) {
+		newsize = XFS_DIR_SF_ENTSIZE_BYNAME(args.namelen);
+		if ((dp->i_d.di_size + newsize) <= XFS_IFORK_DSIZE(dp)) {
+			retval = xfs_dir_shortform_addname(&args);
+			done = 1;
+		} else {
+			if (total == 0)
+				return XFS_ERROR(ENOSPC);
+			retval = xfs_dir_shortform_to_leaf(&args);
+			done = retval != 0;
+		}
+	}
+	if (!done && xfs_bmap_one_block(dp, XFS_DATA_FORK)) {
+		retval = xfs_dir_leaf_addname(&args);
+		done = retval != ENOSPC;
+		if (!done) {
+			if (total == 0)
+				return XFS_ERROR(ENOSPC);
+			retval = xfs_dir_leaf_to_node(&args);
+			done = retval != 0;
+		}
+	}
+	if (!done) {
+		retval = xfs_dir_node_addname(&args);
+	}
+	return(retval);
+}
+
+/*
+ * Generic handler routine to check if a name can be added to a directory,
+ * without adding any blocks to the directory.
+ */
+static int							/* error */
+xfs_dir_canenter(xfs_trans_t *trans, xfs_inode_t *dp, char *name, int namelen)
+{
+	xfs_da_args_t args;
+	int retval, newsize;
+
+	ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
+	/*
+	 * Fill in the arg structure for this request.
+	 */
+	args.name = name;
+	args.namelen = namelen;
+	args.hashval = xfs_da_hashname(name, namelen);
+	args.inumber = 0;
+	args.dp = dp;
+	args.firstblock = NULL;
+	args.flist = NULL;
+	args.total = 0;
+	args.whichfork = XFS_DATA_FORK;
+	args.trans = trans;
+	args.justcheck = args.addname = args.oknoent = 1;
+
+	/*
+	 * Decide on what work routines to call based on the inode size.
+	 */
+	if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) {
+		newsize = XFS_DIR_SF_ENTSIZE_BYNAME(args.namelen);
+		if ((dp->i_d.di_size + newsize) <= XFS_IFORK_DSIZE(dp))
+			retval = 0;
+		else
+			retval = XFS_ERROR(ENOSPC);
+	} else if (xfs_bmap_one_block(dp, XFS_DATA_FORK)) {
+		retval = xfs_dir_leaf_addname(&args);
+	} else {
+		retval = xfs_dir_node_addname(&args);
+	}
+	return(retval);
+}
+
+/*
+ * Generic handler routine to remove a name from a directory.
+ * Transitions directory from Btree to shortform as necessary.
+ */
+static int							/* error */
+xfs_dir_removename(xfs_trans_t *trans, xfs_inode_t *dp, char *name,
+		   int namelen, xfs_ino_t ino, xfs_fsblock_t *firstblock,
+		   xfs_bmap_free_t *flist, xfs_extlen_t total)
+{
+	xfs_da_args_t args;
+	int count, totallen, newsize, retval;
+
+	ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
+	XFS_STATS_INC(xs_dir_remove);
+	/*
+	 * Fill in the arg structure for this request.
+	 */
+	args.name = name;
+	args.namelen = namelen;
+	args.hashval = xfs_da_hashname(name, namelen);
+	args.inumber = ino;
+	args.dp = dp;
+	args.firstblock = firstblock;
+	args.flist = flist;
+	args.total = total;
+	args.whichfork = XFS_DATA_FORK;
+	args.trans = trans;
+	args.justcheck = args.addname = args.oknoent = 0;
+
+	/*
+	 * Decide on what work routines to call based on the inode size.
+	 */
+	if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) {
+		retval = xfs_dir_shortform_removename(&args);
+	} else if (xfs_bmap_one_block(dp, XFS_DATA_FORK)) {
+		retval = xfs_dir_leaf_removename(&args, &count, &totallen);
+		if (retval == 0) {
+			newsize = XFS_DIR_SF_ALLFIT(count, totallen);
+			if (newsize <= XFS_IFORK_DSIZE(dp)) {
+				retval = xfs_dir_leaf_to_shortform(&args);
+			}
+		}
+	} else {
+		retval = xfs_dir_node_removename(&args);
+	}
+	return(retval);
+}
+
+static int							/* error */
+xfs_dir_lookup(xfs_trans_t *trans, xfs_inode_t *dp, char *name, int namelen,
+				   xfs_ino_t *inum)
+{
+	xfs_da_args_t args;
+	int retval;
+
+	ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
+
+	XFS_STATS_INC(xs_dir_lookup);
+	/*
+	 * Fill in the arg structure for this request.
+	 */
+	args.name = name;
+	args.namelen = namelen;
+	args.hashval = xfs_da_hashname(name, namelen);
+	args.inumber = 0;
+	args.dp = dp;
+	args.firstblock = NULL;
+	args.flist = NULL;
+	args.total = 0;
+	args.whichfork = XFS_DATA_FORK;
+	args.trans = trans;
+	args.justcheck = args.addname = 0;
+	args.oknoent = 1;
+
+	/*
+	 * Decide on what work routines to call based on the inode size.
+	 */
+	if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) {
+		retval = xfs_dir_shortform_lookup(&args);
+	} else if (xfs_bmap_one_block(dp, XFS_DATA_FORK)) {
+		retval = xfs_dir_leaf_lookup(&args);
+	} else {
+		retval = xfs_dir_node_lookup(&args);
+	}
+	if (retval == EEXIST)
+		retval = 0;
+	*inum = args.inumber;
+	return(retval);
+}
+
+/*
+ * Implement readdir.
+ */
+static int							/* error */
+xfs_dir_getdents(xfs_trans_t *trans, xfs_inode_t *dp, uio_t *uio, int *eofp)
+{
+	xfs_dirent_t *dbp;
+	int  alignment, retval;
+	xfs_dir_put_t put;
+
+	XFS_STATS_INC(xs_dir_getdents);
+	ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
+
+	/*
+	 * If our caller has given us a single contiguous memory buffer,
+	 * just work directly within that buffer.  If it's in user memory,
+	 * lock it down first.
+	 */
+	alignment = sizeof(xfs_off_t) - 1;
+	if ((uio->uio_iovcnt == 1) &&
+	    (((__psint_t)uio->uio_iov[0].iov_base & alignment) == 0) &&
+	    ((uio->uio_iov[0].iov_len & alignment) == 0)) {
+		dbp = NULL;
+		put = xfs_dir_put_dirent64_direct;
+	} else {
+		dbp = kmem_alloc(sizeof(*dbp) + MAXNAMELEN, KM_SLEEP);
+		put = xfs_dir_put_dirent64_uio;
+	}
+
+	/*
+	 * Decide on what work routines to call based on the inode size.
+	 */
+	*eofp = 0;
+
+	if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) {
+		retval = xfs_dir_shortform_getdents(dp, uio, eofp, dbp, put);
+	} else if (xfs_bmap_one_block(dp, XFS_DATA_FORK)) {
+		retval = xfs_dir_leaf_getdents(trans, dp, uio, eofp, dbp, put);
+	} else {
+		retval = xfs_dir_node_getdents(trans, dp, uio, eofp, dbp, put);
+	}
+	if (dbp != NULL)
+		kmem_free(dbp, sizeof(*dbp) + MAXNAMELEN);
+
+	return(retval);
+}
+
+static int							/* error */
+xfs_dir_replace(xfs_trans_t *trans, xfs_inode_t *dp, char *name, int namelen,
+				    xfs_ino_t inum, xfs_fsblock_t *firstblock,
+				    xfs_bmap_free_t *flist, xfs_extlen_t total)
+{
+	xfs_da_args_t args;
+	int retval;
+
+	ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
+
+	if ((retval = xfs_dir_ino_validate(trans->t_mountp, inum)))
+		return retval;
+
+	/*
+	 * Fill in the arg structure for this request.
+	 */
+	args.name = name;
+	args.namelen = namelen;
+	args.hashval = xfs_da_hashname(name, namelen);
+	args.inumber = inum;
+	args.dp = dp;
+	args.firstblock = firstblock;
+	args.flist = flist;
+	args.total = total;
+	args.whichfork = XFS_DATA_FORK;
+	args.trans = trans;
+	args.justcheck = args.addname = args.oknoent = 0;
+
+	/*
+	 * Decide on what work routines to call based on the inode size.
+	 */
+	if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) {
+		retval = xfs_dir_shortform_replace(&args);
+	} else if (xfs_bmap_one_block(dp, XFS_DATA_FORK)) {
+		retval = xfs_dir_leaf_replace(&args);
+	} else {
+		retval = xfs_dir_node_replace(&args);
+	}
+
+	return(retval);
+}
+
+static int
+xfs_dir_shortform_validate_ondisk(xfs_mount_t *mp, xfs_dinode_t *dp)
+{
+	xfs_ino_t		ino;
+	int			namelen_sum;
+	int			count;
+	xfs_dir_shortform_t	*sf;
+	xfs_dir_sf_entry_t	*sfe;
+	int			i;
+
+
+
+	if ((INT_GET(dp->di_core.di_mode, ARCH_CONVERT) & S_IFMT) != S_IFDIR) {
+		return 0;
+	}
+	if (INT_GET(dp->di_core.di_format, ARCH_CONVERT) != XFS_DINODE_FMT_LOCAL) {
+		return 0;
+	}
+	if (INT_GET(dp->di_core.di_size, ARCH_CONVERT) < sizeof(sf->hdr)) {
+		xfs_fs_cmn_err(CE_WARN, mp, "Invalid shortform size: dp 0x%p",
+			dp);
+		return 1;
+	}
+	sf = (xfs_dir_shortform_t *)(&dp->di_u.di_dirsf);
+	ino = XFS_GET_DIR_INO_ARCH(mp, sf->hdr.parent, ARCH_CONVERT);
+	if (xfs_dir_ino_validate(mp, ino))
+		return 1;
+
+	count =	sf->hdr.count;
+	if ((count < 0) || ((count * 10) > XFS_LITINO(mp))) {
+		xfs_fs_cmn_err(CE_WARN, mp,
+			"Invalid shortform count: dp 0x%p", dp);
+		return(1);
+	}
+
+	if (count == 0) {
+		return 0;
+	}
+
+	namelen_sum = 0;
+	sfe = &sf->list[0];
+	for (i = sf->hdr.count - 1; i >= 0; i--) {
+		ino = XFS_GET_DIR_INO_ARCH(mp, sfe->inumber, ARCH_CONVERT);
+		xfs_dir_ino_validate(mp, ino);
+		if (sfe->namelen >= XFS_LITINO(mp)) {
+			xfs_fs_cmn_err(CE_WARN, mp,
+				"Invalid shortform namelen: dp 0x%p", dp);
+			return 1;
+		}
+		namelen_sum += sfe->namelen;
+		sfe = XFS_DIR_SF_NEXTENTRY(sfe);
+	}
+	if (namelen_sum >= XFS_LITINO(mp)) {
+		xfs_fs_cmn_err(CE_WARN, mp,
+			"Invalid shortform namelen: dp 0x%p", dp);
+		return 1;
+	}
+
+	return 0;
+}
+
+/*========================================================================
+ * External routines when dirsize == XFS_LBSIZE(dp->i_mount).
+ *========================================================================*/
+
+/*
+ * Add a name to the leaf directory structure
+ * This is the external routine.
+ */
+int
+xfs_dir_leaf_addname(xfs_da_args_t *args)
+{
+	int index, retval;
+	xfs_dabuf_t *bp;
+
+	retval = xfs_da_read_buf(args->trans, args->dp, 0, -1, &bp,
+					      XFS_DATA_FORK);
+	if (retval)
+		return(retval);
+	ASSERT(bp != NULL);
+
+	retval = xfs_dir_leaf_lookup_int(bp, args, &index);
+	if (retval == ENOENT)
+		retval = xfs_dir_leaf_add(bp, args, index);
+	xfs_da_buf_done(bp);
+	return(retval);
+}
+
+/*
+ * Remove a name from the leaf directory structure
+ * This is the external routine.
+ */
+STATIC int
+xfs_dir_leaf_removename(xfs_da_args_t *args, int *count, int *totallen)
+{
+	xfs_dir_leafblock_t *leaf;
+	int index, retval;
+	xfs_dabuf_t *bp;
+
+	retval = xfs_da_read_buf(args->trans, args->dp, 0, -1, &bp,
+					      XFS_DATA_FORK);
+	if (retval)
+		return(retval);
+	ASSERT(bp != NULL);
+	leaf = bp->data;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR_LEAF_MAGIC);
+	retval = xfs_dir_leaf_lookup_int(bp, args, &index);
+	if (retval == EEXIST) {
+		(void)xfs_dir_leaf_remove(args->trans, bp, index);
+		*count = INT_GET(leaf->hdr.count, ARCH_CONVERT);
+		*totallen = INT_GET(leaf->hdr.namebytes, ARCH_CONVERT);
+		retval = 0;
+	}
+	xfs_da_buf_done(bp);
+	return(retval);
+}
+
+/*
+ * Look up a name in a leaf directory structure.
+ * This is the external routine.
+ */
+STATIC int
+xfs_dir_leaf_lookup(xfs_da_args_t *args)
+{
+	int index, retval;
+	xfs_dabuf_t *bp;
+
+	retval = xfs_da_read_buf(args->trans, args->dp, 0, -1, &bp,
+					      XFS_DATA_FORK);
+	if (retval)
+		return(retval);
+	ASSERT(bp != NULL);
+	retval = xfs_dir_leaf_lookup_int(bp, args, &index);
+	xfs_da_brelse(args->trans, bp);
+	return(retval);
+}
+
+/*
+ * Copy out directory entries for getdents(), for leaf directories.
+ */
+STATIC int
+xfs_dir_leaf_getdents(xfs_trans_t *trans, xfs_inode_t *dp, uio_t *uio,
+				  int *eofp, xfs_dirent_t *dbp, xfs_dir_put_t put)
+{
+	xfs_dabuf_t *bp;
+	int retval, eob;
+
+	retval = xfs_da_read_buf(dp->i_transp, dp, 0, -1, &bp, XFS_DATA_FORK);
+	if (retval)
+		return(retval);
+	ASSERT(bp != NULL);
+	retval = xfs_dir_leaf_getdents_int(bp, dp, 0, uio, &eob, dbp, put, -1);
+	xfs_da_brelse(trans, bp);
+	*eofp = (eob == 0);
+	return(retval);
+}
+
+/*
+ * Look up a name in a leaf directory structure, replace the inode number.
+ * This is the external routine.
+ */
+STATIC int
+xfs_dir_leaf_replace(xfs_da_args_t *args)
+{
+	int index, retval;
+	xfs_dabuf_t *bp;
+	xfs_ino_t inum;
+	xfs_dir_leafblock_t *leaf;
+	xfs_dir_leaf_entry_t *entry;
+	xfs_dir_leaf_name_t *namest;
+
+	inum = args->inumber;
+	retval = xfs_da_read_buf(args->trans, args->dp, 0, -1, &bp,
+					      XFS_DATA_FORK);
+	if (retval)
+		return(retval);
+	ASSERT(bp != NULL);
+	retval = xfs_dir_leaf_lookup_int(bp, args, &index);
+	if (retval == EEXIST) {
+		leaf = bp->data;
+		entry = &leaf->entries[index];
+		namest = XFS_DIR_LEAF_NAMESTRUCT(leaf, INT_GET(entry->nameidx, ARCH_CONVERT));
+		/* XXX - replace assert? */
+		XFS_DIR_SF_PUT_DIRINO_ARCH(&inum, &namest->inumber, ARCH_CONVERT);
+		xfs_da_log_buf(args->trans, bp,
+		    XFS_DA_LOGRANGE(leaf, namest, sizeof(namest->inumber)));
+		xfs_da_buf_done(bp);
+		retval = 0;
+	} else
+		xfs_da_brelse(args->trans, bp);
+	return(retval);
+}
+
+
+/*========================================================================
+ * External routines when dirsize > XFS_LBSIZE(mp).
+ *========================================================================*/
+
+/*
+ * Add a name to a Btree-format directory.
+ *
+ * This will involve walking down the Btree, and may involve splitting
+ * leaf nodes and even splitting intermediate nodes up to and including
+ * the root node (a special case of an intermediate node).
+ */
+STATIC int
+xfs_dir_node_addname(xfs_da_args_t *args)
+{
+	xfs_da_state_t *state;
+	xfs_da_state_blk_t *blk;
+	int retval, error;
+
+	/*
+	 * Fill in bucket of arguments/results/context to carry around.
+	 */
+	state = xfs_da_state_alloc();
+	state->args = args;
+	state->mp = args->dp->i_mount;
+	state->blocksize = state->mp->m_sb.sb_blocksize;
+	state->node_ents = state->mp->m_dir_node_ents;
+
+	/*
+	 * Search to see if name already exists, and get back a pointer
+	 * to where it should go.
+	 */
+	error = xfs_da_node_lookup_int(state, &retval);
+	if (error)
+		retval = error;
+	if (retval != ENOENT)
+		goto error;
+	blk = &state->path.blk[ state->path.active-1 ];
+	ASSERT(blk->magic == XFS_DIR_LEAF_MAGIC);
+	retval = xfs_dir_leaf_add(blk->bp, args, blk->index);
+	if (retval == 0) {
+		/*
+		 * Addition succeeded, update Btree hashvals.
+		 */
+		if (!args->justcheck)
+			xfs_da_fixhashpath(state, &state->path);
+	} else {
+		/*
+		 * Addition failed, split as many Btree elements as required.
+		 */
+		if (args->total == 0) {
+			ASSERT(retval == ENOSPC);
+			goto error;
+		}
+		retval = xfs_da_split(state);
+	}
+error:
+	xfs_da_state_free(state);
+
+	return(retval);
+}
+
+/*
+ * Remove a name from a B-tree directory.
+ *
+ * This will involve walking down the Btree, and may involve joining
+ * leaf nodes and even joining intermediate nodes up to and including
+ * the root node (a special case of an intermediate node).
+ */
+STATIC int
+xfs_dir_node_removename(xfs_da_args_t *args)
+{
+	xfs_da_state_t *state;
+	xfs_da_state_blk_t *blk;
+	int retval, error;
+
+	state = xfs_da_state_alloc();
+	state->args = args;
+	state->mp = args->dp->i_mount;
+	state->blocksize = state->mp->m_sb.sb_blocksize;
+	state->node_ents = state->mp->m_dir_node_ents;
+
+	/*
+	 * Search to see if name exists, and get back a pointer to it.
+	 */
+	error = xfs_da_node_lookup_int(state, &retval);
+	if (error)
+		retval = error;
+	if (retval != EEXIST) {
+		xfs_da_state_free(state);
+		return(retval);
+	}
+
+	/*
+	 * Remove the name and update the hashvals in the tree.
+	 */
+	blk = &state->path.blk[ state->path.active-1 ];
+	ASSERT(blk->magic == XFS_DIR_LEAF_MAGIC);
+	retval = xfs_dir_leaf_remove(args->trans, blk->bp, blk->index);
+	xfs_da_fixhashpath(state, &state->path);
+
+	/*
+	 * Check to see if the tree needs to be collapsed.
+	 */
+	error = 0;
+	if (retval) {
+		error = xfs_da_join(state);
+	}
+
+	xfs_da_state_free(state);
+	if (error)
+		return(error);
+	return(0);
+}
+
+/*
+ * Look up a filename in a int directory.
+ * Use an internal routine to actually do all the work.
+ */
+STATIC int
+xfs_dir_node_lookup(xfs_da_args_t *args)
+{
+	xfs_da_state_t *state;
+	int retval, error, i;
+
+	state = xfs_da_state_alloc();
+	state->args = args;
+	state->mp = args->dp->i_mount;
+	state->blocksize = state->mp->m_sb.sb_blocksize;
+	state->node_ents = state->mp->m_dir_node_ents;
+
+	/*
+	 * Search to see if name exists,
+	 * and get back a pointer to it.
+	 */
+	error = xfs_da_node_lookup_int(state, &retval);
+	if (error) {
+		retval = error;
+	}
+
+	/*
+	 * If not in a transaction, we have to release all the buffers.
+	 */
+	for (i = 0; i < state->path.active; i++) {
+		xfs_da_brelse(args->trans, state->path.blk[i].bp);
+		state->path.blk[i].bp = NULL;
+	}
+
+	xfs_da_state_free(state);
+	return(retval);
+}
+
+STATIC int
+xfs_dir_node_getdents(xfs_trans_t *trans, xfs_inode_t *dp, uio_t *uio,
+				  int *eofp, xfs_dirent_t *dbp, xfs_dir_put_t put)
+{
+	xfs_da_intnode_t *node;
+	xfs_da_node_entry_t *btree;
+	xfs_dir_leafblock_t *leaf = NULL;
+	xfs_dablk_t bno, nextbno;
+	xfs_dahash_t cookhash;
+	xfs_mount_t *mp;
+	int error, eob, i;
+	xfs_dabuf_t *bp;
+	xfs_daddr_t nextda;
+
+	/*
+	 * Pick up our context.
+	 */
+	mp = dp->i_mount;
+	bp = NULL;
+	bno = XFS_DA_COOKIE_BNO(mp, uio->uio_offset);
+	cookhash = XFS_DA_COOKIE_HASH(mp, uio->uio_offset);
+
+	xfs_dir_trace_g_du("node: start", dp, uio);
+
+	/*
+	 * Re-find our place, even if we're confused about what our place is.
+	 *
+	 * First we check the block number from the magic cookie, it is a
+	 * cache of where we ended last time.  If we find a leaf block, and
+	 * the starting hashval in that block is less than our desired
+	 * hashval, then we run with it.
+	 */
+	if (bno > 0) {
+		error = xfs_da_read_buf(trans, dp, bno, -2, &bp, XFS_DATA_FORK);
+		if ((error != 0) && (error != EFSCORRUPTED))
+			return(error);
+		if (bp)
+			leaf = bp->data;
+		if (bp && INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) != XFS_DIR_LEAF_MAGIC) {
+			xfs_dir_trace_g_dub("node: block not a leaf",
+						   dp, uio, bno);
+			xfs_da_brelse(trans, bp);
+			bp = NULL;
+		}
+		if (bp && INT_GET(leaf->entries[0].hashval, ARCH_CONVERT) > cookhash) {
+			xfs_dir_trace_g_dub("node: leaf hash too large",
+						   dp, uio, bno);
+			xfs_da_brelse(trans, bp);
+			bp = NULL;
+		}
+		if (bp &&
+		    cookhash > INT_GET(leaf->entries[INT_GET(leaf->hdr.count, ARCH_CONVERT) - 1].hashval, ARCH_CONVERT)) {
+			xfs_dir_trace_g_dub("node: leaf hash too small",
+						   dp, uio, bno);
+			xfs_da_brelse(trans, bp);
+			bp = NULL;
+		}
+	}
+
+	/*
+	 * If we did not find a leaf block from the blockno in the cookie,
+	 * or we there was no blockno in the cookie (eg: first time thru),
+	 * the we start at the top of the Btree and re-find our hashval.
+	 */
+	if (bp == NULL) {
+		xfs_dir_trace_g_du("node: start at root" , dp, uio);
+		bno = 0;
+		for (;;) {
+			error = xfs_da_read_buf(trans, dp, bno, -1, &bp,
+						       XFS_DATA_FORK);
+			if (error)
+				return(error);
+			if (bp == NULL)
+				return(XFS_ERROR(EFSCORRUPTED));
+			node = bp->data;
+			if (INT_GET(node->hdr.info.magic, ARCH_CONVERT) != XFS_DA_NODE_MAGIC)
+				break;
+			btree = &node->btree[0];
+			xfs_dir_trace_g_dun("node: node detail", dp, uio, node);
+			for (i = 0; i < INT_GET(node->hdr.count, ARCH_CONVERT); btree++, i++) {
+				if (INT_GET(btree->hashval, ARCH_CONVERT) >= cookhash) {
+					bno = INT_GET(btree->before, ARCH_CONVERT);
+					break;
+				}
+			}
+			if (i == INT_GET(node->hdr.count, ARCH_CONVERT)) {
+				xfs_da_brelse(trans, bp);
+				xfs_dir_trace_g_du("node: hash beyond EOF",
+							  dp, uio);
+				uio->uio_offset = XFS_DA_MAKE_COOKIE(mp, 0, 0,
+							     XFS_DA_MAXHASH);
+				*eofp = 1;
+				return(0);
+			}
+			xfs_dir_trace_g_dub("node: going to block",
+						   dp, uio, bno);
+			xfs_da_brelse(trans, bp);
+		}
+	}
+	ASSERT(cookhash != XFS_DA_MAXHASH);
+
+	/*
+	 * We've dropped down to the (first) leaf block that contains the
+	 * hashval we are interested in.  Continue rolling upward thru the
+	 * leaf blocks until we fill up our buffer.
+	 */
+	for (;;) {
+		leaf = bp->data;
+		if (unlikely(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) != XFS_DIR_LEAF_MAGIC)) {
+			xfs_dir_trace_g_dul("node: not a leaf", dp, uio, leaf);
+			xfs_da_brelse(trans, bp);
+			XFS_CORRUPTION_ERROR("xfs_dir_node_getdents(1)",
+					     XFS_ERRLEVEL_LOW, mp, leaf);
+			return XFS_ERROR(EFSCORRUPTED);
+		}
+		xfs_dir_trace_g_dul("node: leaf detail", dp, uio, leaf);
+		if ((nextbno = INT_GET(leaf->hdr.info.forw, ARCH_CONVERT))) {
+			nextda = xfs_da_reada_buf(trans, dp, nextbno,
+						  XFS_DATA_FORK);
+		} else
+			nextda = -1;
+		error = xfs_dir_leaf_getdents_int(bp, dp, bno, uio, &eob, dbp,
+						  put, nextda);
+		xfs_da_brelse(trans, bp);
+		bno = nextbno;
+		if (eob) {
+			xfs_dir_trace_g_dub("node: E-O-B", dp, uio, bno);
+			*eofp = 0;
+			return(error);
+		}
+		if (bno == 0)
+			break;
+		error = xfs_da_read_buf(trans, dp, bno, nextda, &bp,
+					XFS_DATA_FORK);
+		if (error)
+			return(error);
+		if (unlikely(bp == NULL)) {
+			XFS_ERROR_REPORT("xfs_dir_node_getdents(2)",
+					 XFS_ERRLEVEL_LOW, mp);
+			return(XFS_ERROR(EFSCORRUPTED));
+		}
+	}
+	*eofp = 1;
+	xfs_dir_trace_g_du("node: E-O-F", dp, uio);
+	return(0);
+}
+
+/*
+ * Look up a filename in an int directory, replace the inode number.
+ * Use an internal routine to actually do the lookup.
+ */
+STATIC int
+xfs_dir_node_replace(xfs_da_args_t *args)
+{
+	xfs_da_state_t *state;
+	xfs_da_state_blk_t *blk;
+	xfs_dir_leafblock_t *leaf;
+	xfs_dir_leaf_entry_t *entry;
+	xfs_dir_leaf_name_t *namest;
+	xfs_ino_t inum;
+	int retval, error, i;
+	xfs_dabuf_t *bp;
+
+	state = xfs_da_state_alloc();
+	state->args = args;
+	state->mp = args->dp->i_mount;
+	state->blocksize = state->mp->m_sb.sb_blocksize;
+	state->node_ents = state->mp->m_dir_node_ents;
+	inum = args->inumber;
+
+	/*
+	 * Search to see if name exists,
+	 * and get back a pointer to it.
+	 */
+	error = xfs_da_node_lookup_int(state, &retval);
+	if (error) {
+		retval = error;
+	}
+
+	if (retval == EEXIST) {
+		blk = &state->path.blk[state->path.active - 1];
+		ASSERT(blk->magic == XFS_DIR_LEAF_MAGIC);
+		bp = blk->bp;
+		leaf = bp->data;
+		entry = &leaf->entries[blk->index];
+		namest = XFS_DIR_LEAF_NAMESTRUCT(leaf, INT_GET(entry->nameidx, ARCH_CONVERT));
+		/* XXX - replace assert ? */
+		XFS_DIR_SF_PUT_DIRINO_ARCH(&inum, &namest->inumber, ARCH_CONVERT);
+		xfs_da_log_buf(args->trans, bp,
+		    XFS_DA_LOGRANGE(leaf, namest, sizeof(namest->inumber)));
+		xfs_da_buf_done(bp);
+		blk->bp = NULL;
+		retval = 0;
+	} else {
+		i = state->path.active - 1;
+		xfs_da_brelse(args->trans, state->path.blk[i].bp);
+		state->path.blk[i].bp = NULL;
+	}
+	for (i = 0; i < state->path.active - 1; i++) {
+		xfs_da_brelse(args->trans, state->path.blk[i].bp);
+		state->path.blk[i].bp = NULL;
+	}
+
+	xfs_da_state_free(state);
+	return(retval);
+}
+
+#if defined(XFS_DIR_TRACE)
+/*
+ * Add a trace buffer entry for an inode and a uio.
+ */
+void
+xfs_dir_trace_g_du(char *where, xfs_inode_t *dp, uio_t *uio)
+{
+	xfs_dir_trace_enter(XFS_DIR_KTRACE_G_DU, where,
+		     (void *)dp, (void *)dp->i_mount,
+		     (void *)((unsigned long)(uio->uio_offset >> 32)),
+		     (void *)((unsigned long)(uio->uio_offset & 0xFFFFFFFF)),
+		     (void *)(unsigned long)uio->uio_resid,
+		     NULL, NULL, NULL, NULL, NULL, NULL, NULL);
+}
+
+/*
+ * Add a trace buffer entry for an inode and a uio.
+ */
+void
+xfs_dir_trace_g_dub(char *where, xfs_inode_t *dp, uio_t *uio, xfs_dablk_t bno)
+{
+	xfs_dir_trace_enter(XFS_DIR_KTRACE_G_DUB, where,
+		     (void *)dp, (void *)dp->i_mount,
+		     (void *)((unsigned long)(uio->uio_offset >> 32)),
+		     (void *)((unsigned long)(uio->uio_offset & 0xFFFFFFFF)),
+		     (void *)(unsigned long)uio->uio_resid,
+		     (void *)(unsigned long)bno,
+		     NULL, NULL, NULL, NULL, NULL, NULL);
+}
+
+/*
+ * Add a trace buffer entry for an inode and a uio.
+ */
+void
+xfs_dir_trace_g_dun(char *where, xfs_inode_t *dp, uio_t *uio,
+			xfs_da_intnode_t *node)
+{
+	int	last = INT_GET(node->hdr.count, ARCH_CONVERT) - 1;
+
+	xfs_dir_trace_enter(XFS_DIR_KTRACE_G_DUN, where,
+		     (void *)dp, (void *)dp->i_mount,
+		     (void *)((unsigned long)(uio->uio_offset >> 32)),
+		     (void *)((unsigned long)(uio->uio_offset & 0xFFFFFFFF)),
+		     (void *)(unsigned long)uio->uio_resid,
+		     (void *)(unsigned long)
+			INT_GET(node->hdr.info.forw, ARCH_CONVERT),
+		     (void *)(unsigned long)
+			INT_GET(node->hdr.count, ARCH_CONVERT),
+		     (void *)(unsigned long)
+			INT_GET(node->btree[0].hashval, ARCH_CONVERT),
+		     (void *)(unsigned long)
+			INT_GET(node->btree[last].hashval, ARCH_CONVERT),
+		     NULL, NULL, NULL);
+}
+
+/*
+ * Add a trace buffer entry for an inode and a uio.
+ */
+void
+xfs_dir_trace_g_dul(char *where, xfs_inode_t *dp, uio_t *uio,
+			xfs_dir_leafblock_t *leaf)
+{
+	int	last = INT_GET(leaf->hdr.count, ARCH_CONVERT) - 1;
+
+	xfs_dir_trace_enter(XFS_DIR_KTRACE_G_DUL, where,
+		     (void *)dp, (void *)dp->i_mount,
+		     (void *)((unsigned long)(uio->uio_offset >> 32)),
+		     (void *)((unsigned long)(uio->uio_offset & 0xFFFFFFFF)),
+		     (void *)(unsigned long)uio->uio_resid,
+		     (void *)(unsigned long)
+			INT_GET(leaf->hdr.info.forw, ARCH_CONVERT),
+		     (void *)(unsigned long)
+			INT_GET(leaf->hdr.count, ARCH_CONVERT),
+		     (void *)(unsigned long)
+			INT_GET(leaf->entries[0].hashval, ARCH_CONVERT),
+		     (void *)(unsigned long)
+			INT_GET(leaf->entries[last].hashval, ARCH_CONVERT),
+		     NULL, NULL, NULL);
+}
+
+/*
+ * Add a trace buffer entry for an inode and a uio.
+ */
+void
+xfs_dir_trace_g_due(char *where, xfs_inode_t *dp, uio_t *uio,
+			xfs_dir_leaf_entry_t *entry)
+{
+	xfs_dir_trace_enter(XFS_DIR_KTRACE_G_DUE, where,
+		     (void *)dp, (void *)dp->i_mount,
+		     (void *)((unsigned long)(uio->uio_offset >> 32)),
+		     (void *)((unsigned long)(uio->uio_offset & 0xFFFFFFFF)),
+		     (void *)(unsigned long)uio->uio_resid,
+		     (void *)(unsigned long)
+			INT_GET(entry->hashval, ARCH_CONVERT),
+		     NULL, NULL, NULL, NULL, NULL, NULL);
+}
+
+/*
+ * Add a trace buffer entry for an inode and a uio.
+ */
+void
+xfs_dir_trace_g_duc(char *where, xfs_inode_t *dp, uio_t *uio, xfs_off_t cookie)
+{
+	xfs_dir_trace_enter(XFS_DIR_KTRACE_G_DUC, where,
+		     (void *)dp, (void *)dp->i_mount,
+		     (void *)((unsigned long)(uio->uio_offset >> 32)),
+		     (void *)((unsigned long)(uio->uio_offset & 0xFFFFFFFF)),
+		     (void *)(unsigned long)uio->uio_resid,
+		     (void *)((unsigned long)(cookie >> 32)),
+		     (void *)((unsigned long)(cookie & 0xFFFFFFFF)),
+		     NULL, NULL, NULL, NULL, NULL);
+}
+
+/*
+ * Add a trace buffer entry for the arguments given to the routine,
+ * generic form.
+ */
+void
+xfs_dir_trace_enter(int type, char *where,
+			void * a0, void * a1,
+			void * a2, void * a3,
+			void * a4, void * a5,
+			void * a6, void * a7,
+			void * a8, void * a9,
+			void * a10, void * a11)
+{
+	ASSERT(xfs_dir_trace_buf);
+	ktrace_enter(xfs_dir_trace_buf, (void *)(unsigned long)type,
+					(void *)where,
+					(void *)a0, (void *)a1, (void *)a2,
+					(void *)a3, (void *)a4, (void *)a5,
+					(void *)a6, (void *)a7, (void *)a8,
+					(void *)a9, (void *)a10, (void *)a11,
+					NULL, NULL);
+}
+#endif	/* XFS_DIR_TRACE */
diff --git a/fs/xfs/xfs_dir.h b/fs/xfs/xfs_dir.h
new file mode 100644
index 00000000000000..4dbc9f54cca5b1
--- /dev/null
+++ b/fs/xfs/xfs_dir.h
@@ -0,0 +1,154 @@
+/*
+ * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_DIR_H__
+#define	__XFS_DIR_H__
+
+/*
+ * Large directories are structured around Btrees where all the data
+ * elements are in the leaf nodes.  Filenames are hashed into an int,
+ * then that int is used as the index into the Btree.  Since the hashval
+ * of a filename may not be unique, we may have duplicate keys.  The
+ * internal links in the Btree are logical block offsets into the file.
+ *
+ * Small directories use a different format and are packed as tightly
+ * as possible so as to fit into the literal area of the inode.
+ */
+
+/*========================================================================
+ * Function prototypes for the kernel.
+ *========================================================================*/
+
+struct uio;
+struct xfs_bmap_free;
+struct xfs_da_args;
+struct xfs_dinode;
+struct xfs_inode;
+struct xfs_mount;
+struct xfs_trans;
+
+/*
+ * Directory function types.
+ * Put in structures (xfs_dirops_t) for v1 and v2 directories.
+ */
+typedef void	(*xfs_dir_mount_t)(struct xfs_mount *mp);
+typedef int	(*xfs_dir_isempty_t)(struct xfs_inode *dp);
+typedef int	(*xfs_dir_init_t)(struct xfs_trans *tp,
+				  struct xfs_inode *dp,
+				  struct xfs_inode *pdp);
+typedef int	(*xfs_dir_createname_t)(struct xfs_trans *tp,
+					struct xfs_inode *dp,
+					char *name,
+					int namelen,
+					xfs_ino_t inum,
+					xfs_fsblock_t *first,
+					struct xfs_bmap_free *flist,
+					xfs_extlen_t total);
+typedef int	(*xfs_dir_lookup_t)(struct xfs_trans *tp,
+				    struct xfs_inode *dp,
+				    char *name,
+				    int namelen,
+				    xfs_ino_t *inum);
+typedef int	(*xfs_dir_removename_t)(struct xfs_trans *tp,
+					struct xfs_inode *dp,
+					char *name,
+					int namelen,
+					xfs_ino_t ino,
+					xfs_fsblock_t *first,
+					struct xfs_bmap_free *flist,
+					xfs_extlen_t total);
+typedef int	(*xfs_dir_getdents_t)(struct xfs_trans *tp,
+				      struct xfs_inode *dp,
+				      struct uio *uio,
+				      int *eofp);
+typedef int	(*xfs_dir_replace_t)(struct xfs_trans *tp,
+				     struct xfs_inode *dp,
+				     char *name,
+				     int namelen,
+				     xfs_ino_t inum,
+				     xfs_fsblock_t *first,
+				     struct xfs_bmap_free *flist,
+				     xfs_extlen_t total);
+typedef int	(*xfs_dir_canenter_t)(struct xfs_trans *tp,
+				      struct xfs_inode *dp,
+				      char *name,
+				      int namelen);
+typedef int	(*xfs_dir_shortform_validate_ondisk_t)(struct xfs_mount *mp,
+						       struct xfs_dinode *dip);
+typedef int	(*xfs_dir_shortform_to_single_t)(struct xfs_da_args *args);
+
+typedef struct xfs_dirops {
+	xfs_dir_mount_t				xd_mount;
+	xfs_dir_isempty_t			xd_isempty;
+	xfs_dir_init_t				xd_init;
+	xfs_dir_createname_t			xd_createname;
+	xfs_dir_lookup_t			xd_lookup;
+	xfs_dir_removename_t			xd_removename;
+	xfs_dir_getdents_t			xd_getdents;
+	xfs_dir_replace_t			xd_replace;
+	xfs_dir_canenter_t			xd_canenter;
+	xfs_dir_shortform_validate_ondisk_t	xd_shortform_validate_ondisk;
+	xfs_dir_shortform_to_single_t		xd_shortform_to_single;
+} xfs_dirops_t;
+
+/*
+ * Overall external interface routines.
+ */
+void	xfs_dir_startup(void);	/* called exactly once */
+
+#define	XFS_DIR_MOUNT(mp)	\
+	((mp)->m_dirops.xd_mount(mp))
+#define	XFS_DIR_ISEMPTY(mp,dp)	\
+	((mp)->m_dirops.xd_isempty(dp))
+#define	XFS_DIR_INIT(mp,tp,dp,pdp)	\
+	((mp)->m_dirops.xd_init(tp,dp,pdp))
+#define	XFS_DIR_CREATENAME(mp,tp,dp,name,namelen,inum,first,flist,total) \
+	((mp)->m_dirops.xd_createname(tp,dp,name,namelen,inum,first,flist,\
+				      total))
+#define	XFS_DIR_LOOKUP(mp,tp,dp,name,namelen,inum)	\
+	((mp)->m_dirops.xd_lookup(tp,dp,name,namelen,inum))
+#define	XFS_DIR_REMOVENAME(mp,tp,dp,name,namelen,ino,first,flist,total)	\
+	((mp)->m_dirops.xd_removename(tp,dp,name,namelen,ino,first,flist,total))
+#define	XFS_DIR_GETDENTS(mp,tp,dp,uio,eofp)	\
+	((mp)->m_dirops.xd_getdents(tp,dp,uio,eofp))
+#define	XFS_DIR_REPLACE(mp,tp,dp,name,namelen,inum,first,flist,total)	\
+	((mp)->m_dirops.xd_replace(tp,dp,name,namelen,inum,first,flist,total))
+#define	XFS_DIR_CANENTER(mp,tp,dp,name,namelen)	\
+	((mp)->m_dirops.xd_canenter(tp,dp,name,namelen))
+#define	XFS_DIR_SHORTFORM_VALIDATE_ONDISK(mp,dip)	\
+	((mp)->m_dirops.xd_shortform_validate_ondisk(mp,dip))
+#define	XFS_DIR_SHORTFORM_TO_SINGLE(mp,args)	\
+	((mp)->m_dirops.xd_shortform_to_single(args))
+
+#define	XFS_DIR_IS_V1(mp)	((mp)->m_dirversion == 1)
+extern xfs_dirops_t xfsv1_dirops;
+
+#endif	/* __XFS_DIR_H__ */
diff --git a/fs/xfs/xfs_dir2.c b/fs/xfs/xfs_dir2.c
new file mode 100644
index 00000000000000..bd062886d58411
--- /dev/null
+++ b/fs/xfs/xfs_dir2.c
@@ -0,0 +1,859 @@
+/*
+ * Copyright (c) 2000-2001 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+/*
+ * XFS v2 directory implmentation.
+ * Top-level and utility routines.
+ */
+
+#include "xfs.h"
+
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode_item.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_da_btree.h"
+#include "xfs_dir_leaf.h"
+#include "xfs_dir2_data.h"
+#include "xfs_dir2_leaf.h"
+#include "xfs_dir2_block.h"
+#include "xfs_dir2_node.h"
+#include "xfs_dir2_trace.h"
+#include "xfs_error.h"
+#include "xfs_bit.h"
+
+/*
+ * Declarations for interface routines.
+ */
+static void	xfs_dir2_mount(xfs_mount_t *mp);
+static int	xfs_dir2_isempty(xfs_inode_t *dp);
+static int	xfs_dir2_init(xfs_trans_t *tp, xfs_inode_t *dp,
+			      xfs_inode_t *pdp);
+static int	xfs_dir2_createname(xfs_trans_t *tp, xfs_inode_t *dp,
+				    char *name, int namelen, xfs_ino_t inum,
+				    xfs_fsblock_t *first,
+				    xfs_bmap_free_t *flist, xfs_extlen_t total);
+static int	xfs_dir2_lookup(xfs_trans_t *tp, xfs_inode_t *dp, char *name,
+				int namelen, xfs_ino_t *inum);
+static int	xfs_dir2_removename(xfs_trans_t *tp, xfs_inode_t *dp,
+				    char *name, int namelen, xfs_ino_t ino,
+				    xfs_fsblock_t *first,
+				    xfs_bmap_free_t *flist, xfs_extlen_t total);
+static int	xfs_dir2_getdents(xfs_trans_t *tp, xfs_inode_t *dp, uio_t *uio,
+				  int *eofp);
+static int	xfs_dir2_replace(xfs_trans_t *tp, xfs_inode_t *dp, char *name,
+				 int namelen, xfs_ino_t inum,
+				 xfs_fsblock_t *first, xfs_bmap_free_t *flist,
+				 xfs_extlen_t total);
+static int	xfs_dir2_canenter(xfs_trans_t *tp, xfs_inode_t *dp, char *name,
+				  int namelen);
+static int	xfs_dir2_shortform_validate_ondisk(xfs_mount_t *mp,
+						   xfs_dinode_t *dip);
+
+/*
+ * Utility routine declarations.
+ */
+static int	xfs_dir2_put_dirent64_direct(xfs_dir2_put_args_t *pa);
+static int	xfs_dir2_put_dirent64_uio(xfs_dir2_put_args_t *pa);
+
+/*
+ * Directory operations vector.
+ */
+xfs_dirops_t	xfsv2_dirops = {
+	.xd_mount			= xfs_dir2_mount,
+	.xd_isempty			= xfs_dir2_isempty,
+	.xd_init			= xfs_dir2_init,
+	.xd_createname			= xfs_dir2_createname,
+	.xd_lookup			= xfs_dir2_lookup,
+	.xd_removename			= xfs_dir2_removename,
+	.xd_getdents			= xfs_dir2_getdents,
+	.xd_replace			= xfs_dir2_replace,
+	.xd_canenter			= xfs_dir2_canenter,
+	.xd_shortform_validate_ondisk	= xfs_dir2_shortform_validate_ondisk,
+	.xd_shortform_to_single		= xfs_dir2_sf_to_block,
+};
+
+/*
+ * Interface routines.
+ */
+
+/*
+ * Initialize directory-related fields in the mount structure.
+ */
+static void
+xfs_dir2_mount(
+	xfs_mount_t	*mp)		/* filesystem mount point */
+{
+	mp->m_dirversion = 2;
+	ASSERT((1 << (mp->m_sb.sb_blocklog + mp->m_sb.sb_dirblklog)) <=
+	       XFS_MAX_BLOCKSIZE);
+	mp->m_dirblksize = 1 << (mp->m_sb.sb_blocklog + mp->m_sb.sb_dirblklog);
+	mp->m_dirblkfsbs = 1 << mp->m_sb.sb_dirblklog;
+	mp->m_dirdatablk = XFS_DIR2_DB_TO_DA(mp, XFS_DIR2_DATA_FIRSTDB(mp));
+	mp->m_dirleafblk = XFS_DIR2_DB_TO_DA(mp, XFS_DIR2_LEAF_FIRSTDB(mp));
+	mp->m_dirfreeblk = XFS_DIR2_DB_TO_DA(mp, XFS_DIR2_FREE_FIRSTDB(mp));
+	mp->m_attr_node_ents =
+		(mp->m_sb.sb_blocksize - (uint)sizeof(xfs_da_node_hdr_t)) /
+		(uint)sizeof(xfs_da_node_entry_t);
+	mp->m_dir_node_ents =
+		(mp->m_dirblksize - (uint)sizeof(xfs_da_node_hdr_t)) /
+		(uint)sizeof(xfs_da_node_entry_t);
+	mp->m_dir_magicpct = (mp->m_dirblksize * 37) / 100;
+}
+
+/*
+ * Return 1 if directory contains only "." and "..".
+ */
+static int				/* return code */
+xfs_dir2_isempty(
+	xfs_inode_t	*dp)		/* incore inode structure */
+{
+	xfs_dir2_sf_t	*sfp;		/* shortform directory structure */
+
+	ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
+	/*
+	 * Might happen during shutdown.
+	 */
+	if (dp->i_d.di_size == 0) {
+		return 1;
+	}
+	if (dp->i_d.di_size > XFS_IFORK_DSIZE(dp))
+		return 0;
+	sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data;
+	return INT_ISZERO(sfp->hdr.count, ARCH_CONVERT);
+}
+
+/*
+ * Initialize a directory with its "." and ".." entries.
+ */
+static int				/* error */
+xfs_dir2_init(
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_inode_t	*dp,		/* incore directory inode */
+	xfs_inode_t	*pdp)		/* incore parent directory inode */
+{
+	xfs_da_args_t	args;		/* operation arguments */
+	int		error;		/* error return value */
+
+	memset((char *)&args, 0, sizeof(args));
+	args.dp = dp;
+	args.trans = tp;
+	ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
+	if ((error = xfs_dir_ino_validate(tp->t_mountp, pdp->i_ino))) {
+		return error;
+	}
+	return xfs_dir2_sf_create(&args, pdp->i_ino);
+}
+
+/*
+  Enter a name in a directory.
+ */
+static int					/* error */
+xfs_dir2_createname(
+	xfs_trans_t		*tp,		/* transaction pointer */
+	xfs_inode_t		*dp,		/* incore directory inode */
+	char			*name,		/* new entry name */
+	int			namelen,	/* new entry name length */
+	xfs_ino_t		inum,		/* new entry inode number */
+	xfs_fsblock_t		*first,		/* bmap's firstblock */
+	xfs_bmap_free_t		*flist,		/* bmap's freeblock list */
+	xfs_extlen_t		total)		/* bmap's total block count */
+{
+	xfs_da_args_t		args;		/* operation arguments */
+	int			rval;		/* return value */
+	int			v;		/* type-checking value */
+
+	ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
+	if ((rval = xfs_dir_ino_validate(tp->t_mountp, inum))) {
+		return rval;
+	}
+	XFS_STATS_INC(xs_dir_create);
+	/*
+	 * Fill in the arg structure for this request.
+	 */
+	args.name = name;
+	args.namelen = namelen;
+	args.hashval = xfs_da_hashname(name, namelen);
+	args.inumber = inum;
+	args.dp = dp;
+	args.firstblock = first;
+	args.flist = flist;
+	args.total = total;
+	args.whichfork = XFS_DATA_FORK;
+	args.trans = tp;
+	args.justcheck = 0;
+	args.addname = args.oknoent = 1;
+	/*
+	 * Decide on what work routines to call based on the inode size.
+	 */
+	if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL)
+		rval = xfs_dir2_sf_addname(&args);
+	else if ((rval = xfs_dir2_isblock(tp, dp, &v))) {
+		return rval;
+	} else if (v)
+		rval = xfs_dir2_block_addname(&args);
+	else if ((rval = xfs_dir2_isleaf(tp, dp, &v))) {
+		return rval;
+	} else if (v)
+		rval = xfs_dir2_leaf_addname(&args);
+	else
+		rval = xfs_dir2_node_addname(&args);
+	return rval;
+}
+
+/*
+ * Lookup a name in a directory, give back the inode number.
+ */
+static int				/* error */
+xfs_dir2_lookup(
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_inode_t	*dp,		/* incore directory inode */
+	char		*name,		/* lookup name */
+	int		namelen,	/* lookup name length */
+	xfs_ino_t	*inum)		/* out: inode number */
+{
+	xfs_da_args_t	args;		/* operation arguments */
+	int		rval;		/* return value */
+	int		v;		/* type-checking value */
+
+	ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
+	XFS_STATS_INC(xs_dir_lookup);
+
+	/*
+	 * Fill in the arg structure for this request.
+	 */
+	args.name = name;
+	args.namelen = namelen;
+	args.hashval = xfs_da_hashname(name, namelen);
+	args.inumber = 0;
+	args.dp = dp;
+	args.firstblock = NULL;
+	args.flist = NULL;
+	args.total = 0;
+	args.whichfork = XFS_DATA_FORK;
+	args.trans = tp;
+	args.justcheck = args.addname = 0;
+	args.oknoent = 1;
+	/*
+	 * Decide on what work routines to call based on the inode size.
+	 */
+	if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL)
+		rval = xfs_dir2_sf_lookup(&args);
+	else if ((rval = xfs_dir2_isblock(tp, dp, &v))) {
+		return rval;
+	} else if (v)
+		rval = xfs_dir2_block_lookup(&args);
+	else if ((rval = xfs_dir2_isleaf(tp, dp, &v))) {
+		return rval;
+	} else if (v)
+		rval = xfs_dir2_leaf_lookup(&args);
+	else
+		rval = xfs_dir2_node_lookup(&args);
+	if (rval == EEXIST)
+		rval = 0;
+	if (rval == 0)
+		*inum = args.inumber;
+	return rval;
+}
+
+/*
+ * Remove an entry from a directory.
+ */
+static int				/* error */
+xfs_dir2_removename(
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_inode_t	*dp,		/* incore directory inode */
+	char		*name,		/* name of entry to remove */
+	int		namelen,	/* name length of entry to remove */
+	xfs_ino_t	ino,		/* inode number of entry to remove */
+	xfs_fsblock_t	*first,		/* bmap's firstblock */
+	xfs_bmap_free_t	*flist,		/* bmap's freeblock list */
+	xfs_extlen_t	total)		/* bmap's total block count */
+{
+	xfs_da_args_t	args;		/* operation arguments */
+	int		rval;		/* return value */
+	int		v;		/* type-checking value */
+
+	ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
+	XFS_STATS_INC(xs_dir_remove);
+	/*
+	 * Fill in the arg structure for this request.
+	 */
+	args.name = name;
+	args.namelen = namelen;
+	args.hashval = xfs_da_hashname(name, namelen);
+	args.inumber = ino;
+	args.dp = dp;
+	args.firstblock = first;
+	args.flist = flist;
+	args.total = total;
+	args.whichfork = XFS_DATA_FORK;
+	args.trans = tp;
+	args.justcheck = args.addname = args.oknoent = 0;
+	/*
+	 * Decide on what work routines to call based on the inode size.
+	 */
+	if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL)
+		rval = xfs_dir2_sf_removename(&args);
+	else if ((rval = xfs_dir2_isblock(tp, dp, &v))) {
+		return rval;
+	} else if (v)
+		rval = xfs_dir2_block_removename(&args);
+	else if ((rval = xfs_dir2_isleaf(tp, dp, &v))) {
+		return rval;
+	} else if (v)
+		rval = xfs_dir2_leaf_removename(&args);
+	else
+		rval = xfs_dir2_node_removename(&args);
+	return rval;
+}
+
+/*
+ * Read a directory.
+ */
+static int				/* error */
+xfs_dir2_getdents(
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_inode_t	*dp,		/* incore directory inode */
+	uio_t		*uio,		/* caller's buffer control */
+	int		*eofp)		/* out: eof reached */
+{
+	int		alignment;	/* alignment required for ABI */
+	xfs_dirent_t	*dbp;		/* malloc'ed buffer */
+	xfs_dir2_put_t	put;		/* entry formatting routine */
+	int		rval;		/* return value */
+	int		v;		/* type-checking value */
+
+	ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
+	XFS_STATS_INC(xs_dir_getdents);
+	/*
+	 * If our caller has given us a single contiguous aligned memory buffer,
+	 * just work directly within that buffer.  If it's in user memory,
+	 * lock it down first.
+	 */
+	alignment = sizeof(xfs_off_t) - 1;
+	if ((uio->uio_iovcnt == 1) &&
+	    (((__psint_t)uio->uio_iov[0].iov_base & alignment) == 0) &&
+	    ((uio->uio_iov[0].iov_len & alignment) == 0)) {
+		dbp = NULL;
+		put = xfs_dir2_put_dirent64_direct;
+	} else {
+		dbp = kmem_alloc(sizeof(*dbp) + MAXNAMELEN, KM_SLEEP);
+		put = xfs_dir2_put_dirent64_uio;
+	}
+
+	*eofp = 0;
+	/*
+	 * Decide on what work routines to call based on the inode size.
+	 */
+	if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL)
+		rval = xfs_dir2_sf_getdents(dp, uio, eofp, dbp, put);
+	else if ((rval = xfs_dir2_isblock(tp, dp, &v))) {
+		;
+	} else if (v)
+		rval = xfs_dir2_block_getdents(tp, dp, uio, eofp, dbp, put);
+	else
+		rval = xfs_dir2_leaf_getdents(tp, dp, uio, eofp, dbp, put);
+	if (dbp != NULL)
+		kmem_free(dbp, sizeof(*dbp) + MAXNAMELEN);
+	return rval;
+}
+
+/*
+ * Replace the inode number of a directory entry.
+ */
+static int				/* error */
+xfs_dir2_replace(
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_inode_t	*dp,		/* incore directory inode */
+	char		*name,		/* name of entry to replace */
+	int		namelen,	/* name length of entry to replace */
+	xfs_ino_t	inum,		/* new inode number */
+	xfs_fsblock_t	*first,		/* bmap's firstblock */
+	xfs_bmap_free_t	*flist,		/* bmap's freeblock list */
+	xfs_extlen_t	total)		/* bmap's total block count */
+{
+	xfs_da_args_t	args;		/* operation arguments */
+	int		rval;		/* return value */
+	int		v;		/* type-checking value */
+
+	ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
+
+	if ((rval = xfs_dir_ino_validate(tp->t_mountp, inum))) {
+		return rval;
+	}
+	/*
+	 * Fill in the arg structure for this request.
+	 */
+	args.name = name;
+	args.namelen = namelen;
+	args.hashval = xfs_da_hashname(name, namelen);
+	args.inumber = inum;
+	args.dp = dp;
+	args.firstblock = first;
+	args.flist = flist;
+	args.total = total;
+	args.whichfork = XFS_DATA_FORK;
+	args.trans = tp;
+	args.justcheck = args.addname = args.oknoent = 0;
+	/*
+	 * Decide on what work routines to call based on the inode size.
+	 */
+	if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL)
+		rval = xfs_dir2_sf_replace(&args);
+	else if ((rval = xfs_dir2_isblock(tp, dp, &v))) {
+		return rval;
+	} else if (v)
+		rval = xfs_dir2_block_replace(&args);
+	else if ((rval = xfs_dir2_isleaf(tp, dp, &v))) {
+		return rval;
+	} else if (v)
+		rval = xfs_dir2_leaf_replace(&args);
+	else
+		rval = xfs_dir2_node_replace(&args);
+	return rval;
+}
+
+/*
+ * See if this entry can be added to the directory without allocating space.
+ */
+static int				/* error */
+xfs_dir2_canenter(
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_inode_t	*dp,		/* incore directory inode */
+	char		*name,		/* name of entry to add */
+	int		namelen)	/* name length of entry to add */
+{
+	xfs_da_args_t	args;		/* operation arguments */
+	int		rval;		/* return value */
+	int		v;		/* type-checking value */
+
+	ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
+	/*
+	 * Fill in the arg structure for this request.
+	 */
+	args.name = name;
+	args.namelen = namelen;
+	args.hashval = xfs_da_hashname(name, namelen);
+	args.inumber = 0;
+	args.dp = dp;
+	args.firstblock = NULL;
+	args.flist = NULL;
+	args.total = 0;
+	args.whichfork = XFS_DATA_FORK;
+	args.trans = tp;
+	args.justcheck = args.addname = args.oknoent = 1;
+	/*
+	 * Decide on what work routines to call based on the inode size.
+	 */
+	if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL)
+		rval = xfs_dir2_sf_addname(&args);
+	else if ((rval = xfs_dir2_isblock(tp, dp, &v))) {
+		return rval;
+	} else if (v)
+		rval = xfs_dir2_block_addname(&args);
+	else if ((rval = xfs_dir2_isleaf(tp, dp, &v))) {
+		return rval;
+	} else if (v)
+		rval = xfs_dir2_leaf_addname(&args);
+	else
+		rval = xfs_dir2_node_addname(&args);
+	return rval;
+}
+
+/*
+ * Dummy routine for shortform inode validation.
+ * Can't really do this.
+ */
+/* ARGSUSED */
+static int				/* error */
+xfs_dir2_shortform_validate_ondisk(
+	xfs_mount_t	*mp,		/* filesystem mount point */
+	xfs_dinode_t	*dip)		/* ondisk inode */
+{
+	return 0;
+}
+
+/*
+ * Utility routines.
+ */
+
+/*
+ * Add a block to the directory.
+ * This routine is for data and free blocks, not leaf/node blocks
+ * which are handled by xfs_da_grow_inode.
+ */
+int					/* error */
+xfs_dir2_grow_inode(
+	xfs_da_args_t	*args,		/* operation arguments */
+	int		space,		/* v2 dir's space XFS_DIR2_xxx_SPACE */
+	xfs_dir2_db_t	*dbp)		/* out: block number added */
+{
+	xfs_fileoff_t	bno;		/* directory offset of new block */
+	int		count;		/* count of filesystem blocks */
+	xfs_inode_t	*dp;		/* incore directory inode */
+	int		error;		/* error return value */
+	int		got;		/* blocks actually mapped */
+	int		i;		/* temp mapping index */
+	xfs_bmbt_irec_t	map;		/* single structure for bmap */
+	int		mapi;		/* mapping index */
+	xfs_bmbt_irec_t	*mapp;		/* bmap mapping structure(s) */
+	xfs_mount_t	*mp;		/* filesystem mount point */
+	int		nmap;		/* number of bmap entries */
+	xfs_trans_t	*tp;		/* transaction pointer */
+
+	xfs_dir2_trace_args_s("grow_inode", args, space);
+	dp = args->dp;
+	tp = args->trans;
+	mp = dp->i_mount;
+	/*
+	 * Set lowest possible block in the space requested.
+	 */
+	bno = XFS_B_TO_FSBT(mp, space * XFS_DIR2_SPACE_SIZE);
+	count = mp->m_dirblkfsbs;
+	/*
+	 * Find the first hole for our block.
+	 */
+	if ((error = xfs_bmap_first_unused(tp, dp, count, &bno, XFS_DATA_FORK))) {
+		return error;
+	}
+	nmap = 1;
+	ASSERT(args->firstblock != NULL);
+	/*
+	 * Try mapping the new block contiguously (one extent).
+	 */
+	if ((error = xfs_bmapi(tp, dp, bno, count,
+			XFS_BMAPI_WRITE|XFS_BMAPI_METADATA|XFS_BMAPI_CONTIG,
+			args->firstblock, args->total, &map, &nmap,
+			args->flist))) {
+		return error;
+	}
+	ASSERT(nmap <= 1);
+	/*
+	 * Got it in 1.
+	 */
+	if (nmap == 1) {
+		mapp = &map;
+		mapi = 1;
+	}
+	/*
+	 * Didn't work and this is a multiple-fsb directory block.
+	 * Try again with contiguous flag turned on.
+	 */
+	else if (nmap == 0 && count > 1) {
+		xfs_fileoff_t	b;	/* current file offset */
+
+		/*
+		 * Space for maximum number of mappings.
+		 */
+		mapp = kmem_alloc(sizeof(*mapp) * count, KM_SLEEP);
+		/*
+		 * Iterate until we get to the end of our block.
+		 */
+		for (b = bno, mapi = 0; b < bno + count; ) {
+			int	c;	/* current fsb count */
+
+			/*
+			 * Can't map more than MAX_NMAP at once.
+			 */
+			nmap = MIN(XFS_BMAP_MAX_NMAP, count);
+			c = (int)(bno + count - b);
+			if ((error = xfs_bmapi(tp, dp, b, c,
+					XFS_BMAPI_WRITE|XFS_BMAPI_METADATA,
+					args->firstblock, args->total,
+					&mapp[mapi], &nmap, args->flist))) {
+				kmem_free(mapp, sizeof(*mapp) * count);
+				return error;
+			}
+			if (nmap < 1)
+				break;
+			/*
+			 * Add this bunch into our table, go to the next offset.
+			 */
+			mapi += nmap;
+			b = mapp[mapi - 1].br_startoff +
+			    mapp[mapi - 1].br_blockcount;
+		}
+	}
+	/*
+	 * Didn't work.
+	 */
+	else {
+		mapi = 0;
+		mapp = NULL;
+	}
+	/*
+	 * See how many fsb's we got.
+	 */
+	for (i = 0, got = 0; i < mapi; i++)
+		got += mapp[i].br_blockcount;
+	/*
+	 * Didn't get enough fsb's, or the first/last block's are wrong.
+	 */
+	if (got != count || mapp[0].br_startoff != bno ||
+	    mapp[mapi - 1].br_startoff + mapp[mapi - 1].br_blockcount !=
+	    bno + count) {
+		if (mapp != &map)
+			kmem_free(mapp, sizeof(*mapp) * count);
+		return XFS_ERROR(ENOSPC);
+	}
+	/*
+	 * Done with the temporary mapping table.
+	 */
+	if (mapp != &map)
+		kmem_free(mapp, sizeof(*mapp) * count);
+	*dbp = XFS_DIR2_DA_TO_DB(mp, (xfs_dablk_t)bno);
+	/*
+	 * Update file's size if this is the data space and it grew.
+	 */
+	if (space == XFS_DIR2_DATA_SPACE) {
+		xfs_fsize_t	size;		/* directory file (data) size */
+
+		size = XFS_FSB_TO_B(mp, bno + count);
+		if (size > dp->i_d.di_size) {
+			dp->i_d.di_size = size;
+			xfs_trans_log_inode(tp, dp, XFS_ILOG_CORE);
+		}
+	}
+	return 0;
+}
+
+/*
+ * See if the directory is a single-block form directory.
+ */
+int					/* error */
+xfs_dir2_isblock(
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_inode_t	*dp,		/* incore directory inode */
+	int		*vp)		/* out: 1 is block, 0 is not block */
+{
+	xfs_fileoff_t	last;		/* last file offset */
+	xfs_mount_t	*mp;		/* filesystem mount point */
+	int		rval;		/* return value */
+
+	mp = dp->i_mount;
+	if ((rval = xfs_bmap_last_offset(tp, dp, &last, XFS_DATA_FORK))) {
+		return rval;
+	}
+	rval = XFS_FSB_TO_B(mp, last) == mp->m_dirblksize;
+	ASSERT(rval == 0 || dp->i_d.di_size == mp->m_dirblksize);
+	*vp = rval;
+	return 0;
+}
+
+/*
+ * See if the directory is a single-leaf form directory.
+ */
+int					/* error */
+xfs_dir2_isleaf(
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_inode_t	*dp,		/* incore directory inode */
+	int		*vp)		/* out: 1 is leaf, 0 is not leaf */
+{
+	xfs_fileoff_t	last;		/* last file offset */
+	xfs_mount_t	*mp;		/* filesystem mount point */
+	int		rval;		/* return value */
+
+	mp = dp->i_mount;
+	if ((rval = xfs_bmap_last_offset(tp, dp, &last, XFS_DATA_FORK))) {
+		return rval;
+	}
+	*vp = last == mp->m_dirleafblk + (1 << mp->m_sb.sb_dirblklog);
+	return 0;
+}
+
+/*
+ * Getdents put routine for 64-bit ABI, direct form.
+ */
+static int					/* error */
+xfs_dir2_put_dirent64_direct(
+	xfs_dir2_put_args_t	*pa)		/* argument bundle */
+{
+	xfs_dirent_t		*idbp;		/* dirent pointer */
+	iovec_t			*iovp;		/* io vector */
+	int			namelen;	/* entry name length */
+	int			reclen;		/* entry total length */
+	uio_t			*uio;		/* I/O control */
+
+	namelen = pa->namelen;
+	reclen = DIRENTSIZE(namelen);
+	uio = pa->uio;
+	/*
+	 * Won't fit in the remaining space.
+	 */
+	if (reclen > uio->uio_resid) {
+		pa->done = 0;
+		return 0;
+	}
+	iovp = uio->uio_iov;
+	idbp = (xfs_dirent_t *)iovp->iov_base;
+	iovp->iov_base = (char *)idbp + reclen;
+	iovp->iov_len -= reclen;
+	uio->uio_resid -= reclen;
+	idbp->d_reclen = reclen;
+	idbp->d_ino = pa->ino;
+	idbp->d_off = pa->cook;
+	idbp->d_name[namelen] = '\0';
+	pa->done = 1;
+	memcpy(idbp->d_name, pa->name, namelen);
+	return 0;
+}
+
+/*
+ * Getdents put routine for 64-bit ABI, uio form.
+ */
+static int					/* error */
+xfs_dir2_put_dirent64_uio(
+	xfs_dir2_put_args_t	*pa)		/* argument bundle */
+{
+	xfs_dirent_t		*idbp;		/* dirent pointer */
+	int			namelen;	/* entry name length */
+	int			reclen;		/* entry total length */
+	int			rval;		/* return value */
+	uio_t			*uio;		/* I/O control */
+
+	namelen = pa->namelen;
+	reclen = DIRENTSIZE(namelen);
+	uio = pa->uio;
+	/*
+	 * Won't fit in the remaining space.
+	 */
+	if (reclen > uio->uio_resid) {
+		pa->done = 0;
+		return 0;
+	}
+	idbp = pa->dbp;
+	idbp->d_reclen = reclen;
+	idbp->d_ino = pa->ino;
+	idbp->d_off = pa->cook;
+	idbp->d_name[namelen] = '\0';
+	memcpy(idbp->d_name, pa->name, namelen);
+	rval = uio_read((caddr_t)idbp, reclen, uio);
+	pa->done = (rval == 0);
+	return rval;
+}
+
+/*
+ * Remove the given block from the directory.
+ * This routine is used for data and free blocks, leaf/node are done
+ * by xfs_da_shrink_inode.
+ */
+int
+xfs_dir2_shrink_inode(
+	xfs_da_args_t	*args,		/* operation arguments */
+	xfs_dir2_db_t	db,		/* directory block number */
+	xfs_dabuf_t	*bp)		/* block's buffer */
+{
+	xfs_fileoff_t	bno;		/* directory file offset */
+	xfs_dablk_t	da;		/* directory file offset */
+	int		done;		/* bunmap is finished */
+	xfs_inode_t	*dp;		/* incore directory inode */
+	int		error;		/* error return value */
+	xfs_mount_t	*mp;		/* filesystem mount point */
+	xfs_trans_t	*tp;		/* transaction pointer */
+
+	xfs_dir2_trace_args_db("shrink_inode", args, db, bp);
+	dp = args->dp;
+	mp = dp->i_mount;
+	tp = args->trans;
+	da = XFS_DIR2_DB_TO_DA(mp, db);
+	/*
+	 * Unmap the fsblock(s).
+	 */
+	if ((error = xfs_bunmapi(tp, dp, da, mp->m_dirblkfsbs,
+			XFS_BMAPI_METADATA, 0, args->firstblock, args->flist,
+			&done))) {
+		/*
+		 * ENOSPC actually can happen if we're in a removename with
+		 * no space reservation, and the resulting block removal
+		 * would cause a bmap btree split or conversion from extents
+		 * to btree.  This can only happen for un-fragmented
+		 * directory blocks, since you need to be punching out
+		 * the middle of an extent.
+		 * In this case we need to leave the block in the file,
+		 * and not binval it.
+		 * So the block has to be in a consistent empty state
+		 * and appropriately logged.
+		 * We don't free up the buffer, the caller can tell it
+		 * hasn't happened since it got an error back.
+		 */
+		return error;
+	}
+	ASSERT(done);
+	/*
+	 * Invalidate the buffer from the transaction.
+	 */
+	xfs_da_binval(tp, bp);
+	/*
+	 * If it's not a data block, we're done.
+	 */
+	if (db >= XFS_DIR2_LEAF_FIRSTDB(mp))
+		return 0;
+	/*
+	 * If the block isn't the last one in the directory, we're done.
+	 */
+	if (dp->i_d.di_size > XFS_DIR2_DB_OFF_TO_BYTE(mp, db + 1, 0))
+		return 0;
+	bno = da;
+	if ((error = xfs_bmap_last_before(tp, dp, &bno, XFS_DATA_FORK))) {
+		/*
+		 * This can't really happen unless there's kernel corruption.
+		 */
+		return error;
+	}
+	if (db == mp->m_dirdatablk)
+		ASSERT(bno == 0);
+	else
+		ASSERT(bno > 0);
+	/*
+	 * Set the size to the new last block.
+	 */
+	dp->i_d.di_size = XFS_FSB_TO_B(mp, bno);
+	xfs_trans_log_inode(tp, dp, XFS_ILOG_CORE);
+	return 0;
+}
diff --git a/fs/xfs/xfs_dir2.h b/fs/xfs/xfs_dir2.h
new file mode 100644
index 00000000000000..8f4fc7f23bcd89
--- /dev/null
+++ b/fs/xfs/xfs_dir2.h
@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2000-2001 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_DIR2_H__
+#define	__XFS_DIR2_H__
+
+struct uio;
+struct xfs_dabuf;
+struct xfs_da_args;
+struct xfs_dir2_put_args;
+struct xfs_inode;
+struct xfs_trans;
+
+/*
+ * Directory version 2.
+ * There are 4 possible formats:
+ *	shortform
+ *	single block - data with embedded leaf at the end
+ *	multiple data blocks, single leaf+freeindex block
+ *	data blocks, node&leaf blocks (btree), freeindex blocks
+ *
+ *	The shortform format is in xfs_dir2_sf.h.
+ *	The single block format is in xfs_dir2_block.h.
+ *	The data block format is in xfs_dir2_data.h.
+ *	The leaf and freeindex block formats are in xfs_dir2_leaf.h.
+ *	Node blocks are the same as the other version, in xfs_da_btree.h.
+ */
+
+/*
+ * Byte offset in data block and shortform entry.
+ */
+typedef	__uint16_t	xfs_dir2_data_off_t;
+#define	NULLDATAOFF	0xffffU
+typedef uint		xfs_dir2_data_aoff_t;	/* argument form */
+
+/*
+ * Directory block number (logical dirblk in file)
+ */
+typedef	__uint32_t	xfs_dir2_db_t;
+
+/*
+ * Byte offset in a directory.
+ */
+typedef	xfs_off_t		xfs_dir2_off_t;
+
+/*
+ * For getdents, argument struct for put routines.
+ */
+typedef int (*xfs_dir2_put_t)(struct xfs_dir2_put_args *pa);
+typedef struct xfs_dir2_put_args {
+	xfs_off_t		cook;		/* cookie of (next) entry */
+	xfs_intino_t	ino;		/* inode number */
+	struct xfs_dirent	*dbp;		/* buffer pointer */
+	char		*name;		/* directory entry name */
+	int		namelen;	/* length of name */
+	int		done;		/* output: set if value was stored */
+	xfs_dir2_put_t	put;		/* put function ptr (i/o) */
+	struct uio	*uio;		/* uio control structure */
+} xfs_dir2_put_args_t;
+
+#define	XFS_DIR_IS_V2(mp)	((mp)->m_dirversion == 2)
+extern xfs_dirops_t	xfsv2_dirops;
+
+/*
+ * Other interfaces used by the rest of the dir v2 code.
+ */
+extern int
+	xfs_dir2_grow_inode(struct xfs_da_args *args, int space,
+			    xfs_dir2_db_t *dbp);
+
+extern int
+	xfs_dir2_isblock(struct xfs_trans *tp, struct xfs_inode *dp, int *vp);
+
+extern int
+	xfs_dir2_isleaf(struct xfs_trans *tp, struct xfs_inode *dp, int *vp);
+
+extern int
+	xfs_dir2_shrink_inode(struct xfs_da_args *args, xfs_dir2_db_t db,
+			      struct xfs_dabuf *bp);
+
+#endif	/* __XFS_DIR2_H__ */
diff --git a/fs/xfs/xfs_dir2_block.c b/fs/xfs/xfs_dir2_block.c
new file mode 100644
index 00000000000000..696f77da944596
--- /dev/null
+++ b/fs/xfs/xfs_dir2_block.c
@@ -0,0 +1,1248 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+/*
+ * xfs_dir2_block.c
+ * XFS V2 directory implementation, single-block form.
+ * See xfs_dir2_block.h for the format.
+ */
+
+#include "xfs.h"
+
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode_item.h"
+#include "xfs_inode.h"
+#include "xfs_da_btree.h"
+#include "xfs_dir_leaf.h"
+#include "xfs_dir2_data.h"
+#include "xfs_dir2_leaf.h"
+#include "xfs_dir2_block.h"
+#include "xfs_dir2_trace.h"
+#include "xfs_error.h"
+
+/*
+ * Local function prototypes.
+ */
+static void xfs_dir2_block_log_leaf(xfs_trans_t *tp, xfs_dabuf_t *bp, int first,
+				    int last);
+static void xfs_dir2_block_log_tail(xfs_trans_t *tp, xfs_dabuf_t *bp);
+static int xfs_dir2_block_lookup_int(xfs_da_args_t *args, xfs_dabuf_t **bpp,
+				     int *entno);
+static int xfs_dir2_block_sort(const void *a, const void *b);
+
+/*
+ * Add an entry to a block directory.
+ */
+int						/* error */
+xfs_dir2_block_addname(
+	xfs_da_args_t		*args)		/* directory op arguments */
+{
+	xfs_dir2_data_free_t	*bf;		/* bestfree table in block */
+	xfs_dir2_block_t	*block;		/* directory block structure */
+	xfs_dir2_leaf_entry_t	*blp;		/* block leaf entries */
+	xfs_dabuf_t		*bp;		/* buffer for block */
+	xfs_dir2_block_tail_t	*btp;		/* block tail */
+	int			compact;	/* need to compact leaf ents */
+	xfs_dir2_data_entry_t	*dep;		/* block data entry */
+	xfs_inode_t		*dp;		/* directory inode */
+	xfs_dir2_data_unused_t	*dup;		/* block unused entry */
+	int			error;		/* error return value */
+	xfs_dir2_data_unused_t	*enddup=NULL;	/* unused at end of data */
+	xfs_dahash_t		hash;		/* hash value of found entry */
+	int			high;		/* high index for binary srch */
+	int			highstale;	/* high stale index */
+	int			lfloghigh=0;	/* last final leaf to log */
+	int			lfloglow=0;	/* first final leaf to log */
+	int			len;		/* length of the new entry */
+	int			low;		/* low index for binary srch */
+	int			lowstale;	/* low stale index */
+	int			mid=0;		/* midpoint for binary srch */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+	int			needlog;	/* need to log header */
+	int			needscan;	/* need to rescan freespace */
+	xfs_dir2_data_off_t	*tagp;		/* pointer to tag value */
+	xfs_trans_t		*tp;		/* transaction structure */
+
+	xfs_dir2_trace_args("block_addname", args);
+	dp = args->dp;
+	tp = args->trans;
+	mp = dp->i_mount;
+	/*
+	 * Read the (one and only) directory block into dabuf bp.
+	 */
+	if ((error =
+	    xfs_da_read_buf(tp, dp, mp->m_dirdatablk, -1, &bp, XFS_DATA_FORK))) {
+		return error;
+	}
+	ASSERT(bp != NULL);
+	block = bp->data;
+	/*
+	 * Check the magic number, corrupted if wrong.
+	 */
+	if (unlikely(INT_GET(block->hdr.magic, ARCH_CONVERT)
+						!= XFS_DIR2_BLOCK_MAGIC)) {
+		XFS_CORRUPTION_ERROR("xfs_dir2_block_addname",
+				     XFS_ERRLEVEL_LOW, mp, block);
+		xfs_da_brelse(tp, bp);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+	len = XFS_DIR2_DATA_ENTSIZE(args->namelen);
+	/*
+	 * Set up pointers to parts of the block.
+	 */
+	bf = block->hdr.bestfree;
+	btp = XFS_DIR2_BLOCK_TAIL_P(mp, block);
+	blp = XFS_DIR2_BLOCK_LEAF_P_ARCH(btp, ARCH_CONVERT);
+	/*
+	 * No stale entries?  Need space for entry and new leaf.
+	 */
+	if (INT_ISZERO(btp->stale, ARCH_CONVERT)) {
+		/*
+		 * Tag just before the first leaf entry.
+		 */
+		tagp = (xfs_dir2_data_off_t *)blp - 1;
+		/*
+		 * Data object just before the first leaf entry.
+		 */
+		enddup = (xfs_dir2_data_unused_t *)((char *)block + INT_GET(*tagp, ARCH_CONVERT));
+		/*
+		 * If it's not free then can't do this add without cleaning up:
+		 * the space before the first leaf entry needs to be free so it
+		 * can be expanded to hold the pointer to the new entry.
+		 */
+		if (INT_GET(enddup->freetag, ARCH_CONVERT) != XFS_DIR2_DATA_FREE_TAG)
+			dup = enddup = NULL;
+		/*
+		 * Check out the biggest freespace and see if it's the same one.
+		 */
+		else {
+			dup = (xfs_dir2_data_unused_t *)
+			      ((char *)block + INT_GET(bf[0].offset, ARCH_CONVERT));
+			if (dup == enddup) {
+				/*
+				 * It is the biggest freespace, is it too small
+				 * to hold the new leaf too?
+				 */
+				if (INT_GET(dup->length, ARCH_CONVERT) < len + (uint)sizeof(*blp)) {
+					/*
+					 * Yes, we use the second-largest
+					 * entry instead if it works.
+					 */
+					if (INT_GET(bf[1].length, ARCH_CONVERT) >= len)
+						dup = (xfs_dir2_data_unused_t *)
+						      ((char *)block +
+						       INT_GET(bf[1].offset, ARCH_CONVERT));
+					else
+						dup = NULL;
+				}
+			} else {
+				/*
+				 * Not the same free entry,
+				 * just check its length.
+				 */
+				if (INT_GET(dup->length, ARCH_CONVERT) < len) {
+					dup = NULL;
+				}
+			}
+		}
+		compact = 0;
+	}
+	/*
+	 * If there are stale entries we'll use one for the leaf.
+	 * Is the biggest entry enough to avoid compaction?
+	 */
+	else if (INT_GET(bf[0].length, ARCH_CONVERT) >= len) {
+		dup = (xfs_dir2_data_unused_t *)
+		      ((char *)block + INT_GET(bf[0].offset, ARCH_CONVERT));
+		compact = 0;
+	}
+	/*
+	 * Will need to compact to make this work.
+	 */
+	else {
+		/*
+		 * Tag just before the first leaf entry.
+		 */
+		tagp = (xfs_dir2_data_off_t *)blp - 1;
+		/*
+		 * Data object just before the first leaf entry.
+		 */
+		dup = (xfs_dir2_data_unused_t *)((char *)block + INT_GET(*tagp, ARCH_CONVERT));
+		/*
+		 * If it's not free then the data will go where the
+		 * leaf data starts now, if it works at all.
+		 */
+		if (INT_GET(dup->freetag, ARCH_CONVERT) == XFS_DIR2_DATA_FREE_TAG) {
+			if (INT_GET(dup->length, ARCH_CONVERT) + (INT_GET(btp->stale, ARCH_CONVERT) - 1) *
+			    (uint)sizeof(*blp) < len)
+				dup = NULL;
+		} else if ((INT_GET(btp->stale, ARCH_CONVERT) - 1) * (uint)sizeof(*blp) < len)
+			dup = NULL;
+		else
+			dup = (xfs_dir2_data_unused_t *)blp;
+		compact = 1;
+	}
+	/*
+	 * If this isn't a real add, we're done with the buffer.
+	 */
+	if (args->justcheck)
+		xfs_da_brelse(tp, bp);
+	/*
+	 * If we don't have space for the new entry & leaf ...
+	 */
+	if (!dup) {
+		/*
+		 * Not trying to actually do anything, or don't have
+		 * a space reservation: return no-space.
+		 */
+		if (args->justcheck || args->total == 0)
+			return XFS_ERROR(ENOSPC);
+		/*
+		 * Convert to the next larger format.
+		 * Then add the new entry in that format.
+		 */
+		error = xfs_dir2_block_to_leaf(args, bp);
+		xfs_da_buf_done(bp);
+		if (error)
+			return error;
+		return xfs_dir2_leaf_addname(args);
+	}
+	/*
+	 * Just checking, and it would work, so say so.
+	 */
+	if (args->justcheck)
+		return 0;
+	needlog = needscan = 0;
+	/*
+	 * If need to compact the leaf entries, do it now.
+	 * Leave the highest-numbered stale entry stale.
+	 * XXX should be the one closest to mid but mid is not yet computed.
+	 */
+	if (compact) {
+		int	fromidx;		/* source leaf index */
+		int	toidx;			/* target leaf index */
+
+		for (fromidx = toidx = INT_GET(btp->count, ARCH_CONVERT) - 1,
+			highstale = lfloghigh = -1;
+		     fromidx >= 0;
+		     fromidx--) {
+			if (INT_GET(blp[fromidx].address, ARCH_CONVERT) == XFS_DIR2_NULL_DATAPTR) {
+				if (highstale == -1)
+					highstale = toidx;
+				else {
+					if (lfloghigh == -1)
+						lfloghigh = toidx;
+					continue;
+				}
+			}
+			if (fromidx < toidx)
+				blp[toidx] = blp[fromidx];
+			toidx--;
+		}
+		lfloglow = toidx + 1 - (INT_GET(btp->stale, ARCH_CONVERT) - 1);
+		lfloghigh -= INT_GET(btp->stale, ARCH_CONVERT) - 1;
+		INT_MOD(btp->count, ARCH_CONVERT, -(INT_GET(btp->stale, ARCH_CONVERT) - 1));
+		xfs_dir2_data_make_free(tp, bp,
+			(xfs_dir2_data_aoff_t)((char *)blp - (char *)block),
+			(xfs_dir2_data_aoff_t)((INT_GET(btp->stale, ARCH_CONVERT) - 1) * sizeof(*blp)),
+			&needlog, &needscan);
+		blp += INT_GET(btp->stale, ARCH_CONVERT) - 1;
+		INT_SET(btp->stale, ARCH_CONVERT, 1);
+		/*
+		 * If we now need to rebuild the bestfree map, do so.
+		 * This needs to happen before the next call to use_free.
+		 */
+		if (needscan) {
+			xfs_dir2_data_freescan(mp, (xfs_dir2_data_t *)block,
+				&needlog, NULL);
+			needscan = 0;
+		}
+	}
+	/*
+	 * Set leaf logging boundaries to impossible state.
+	 * For the no-stale case they're set explicitly.
+	 */
+	else if (INT_GET(btp->stale, ARCH_CONVERT)) {
+		lfloglow = INT_GET(btp->count, ARCH_CONVERT);
+		lfloghigh = -1;
+	}
+	/*
+	 * Find the slot that's first lower than our hash value, -1 if none.
+	 */
+	for (low = 0, high = INT_GET(btp->count, ARCH_CONVERT) - 1; low <= high; ) {
+		mid = (low + high) >> 1;
+		if ((hash = INT_GET(blp[mid].hashval, ARCH_CONVERT)) == args->hashval)
+			break;
+		if (hash < args->hashval)
+			low = mid + 1;
+		else
+			high = mid - 1;
+	}
+	while (mid >= 0 && INT_GET(blp[mid].hashval, ARCH_CONVERT) >= args->hashval) {
+		mid--;
+	}
+	/*
+	 * No stale entries, will use enddup space to hold new leaf.
+	 */
+	if (INT_ISZERO(btp->stale, ARCH_CONVERT)) {
+		/*
+		 * Mark the space needed for the new leaf entry, now in use.
+		 */
+		xfs_dir2_data_use_free(tp, bp, enddup,
+			(xfs_dir2_data_aoff_t)
+			((char *)enddup - (char *)block + INT_GET(enddup->length, ARCH_CONVERT) -
+			 sizeof(*blp)),
+			(xfs_dir2_data_aoff_t)sizeof(*blp),
+			&needlog, &needscan);
+		/*
+		 * Update the tail (entry count).
+		 */
+		INT_MOD(btp->count, ARCH_CONVERT, +1);
+		/*
+		 * If we now need to rebuild the bestfree map, do so.
+		 * This needs to happen before the next call to use_free.
+		 */
+		if (needscan) {
+			xfs_dir2_data_freescan(mp, (xfs_dir2_data_t *)block,
+				&needlog, NULL);
+			needscan = 0;
+		}
+		/*
+		 * Adjust pointer to the first leaf entry, we're about to move
+		 * the table up one to open up space for the new leaf entry.
+		 * Then adjust our index to match.
+		 */
+		blp--;
+		mid++;
+		if (mid)
+			memmove(blp, &blp[1], mid * sizeof(*blp));
+		lfloglow = 0;
+		lfloghigh = mid;
+	}
+	/*
+	 * Use a stale leaf for our new entry.
+	 */
+	else {
+		for (lowstale = mid;
+		     lowstale >= 0 &&
+			INT_GET(blp[lowstale].address, ARCH_CONVERT) != XFS_DIR2_NULL_DATAPTR;
+		     lowstale--)
+			continue;
+		for (highstale = mid + 1;
+		     highstale < INT_GET(btp->count, ARCH_CONVERT) &&
+			INT_GET(blp[highstale].address, ARCH_CONVERT) != XFS_DIR2_NULL_DATAPTR &&
+			(lowstale < 0 || mid - lowstale > highstale - mid);
+		     highstale++)
+			continue;
+		/*
+		 * Move entries toward the low-numbered stale entry.
+		 */
+		if (lowstale >= 0 &&
+		    (highstale == INT_GET(btp->count, ARCH_CONVERT) ||
+		     mid - lowstale <= highstale - mid)) {
+			if (mid - lowstale)
+				memmove(&blp[lowstale], &blp[lowstale + 1],
+					(mid - lowstale) * sizeof(*blp));
+			lfloglow = MIN(lowstale, lfloglow);
+			lfloghigh = MAX(mid, lfloghigh);
+		}
+		/*
+		 * Move entries toward the high-numbered stale entry.
+		 */
+		else {
+			ASSERT(highstale < INT_GET(btp->count, ARCH_CONVERT));
+			mid++;
+			if (highstale - mid)
+				memmove(&blp[mid + 1], &blp[mid],
+					(highstale - mid) * sizeof(*blp));
+			lfloglow = MIN(mid, lfloglow);
+			lfloghigh = MAX(highstale, lfloghigh);
+		}
+		INT_MOD(btp->stale, ARCH_CONVERT, -1);
+	}
+	/*
+	 * Point to the new data entry.
+	 */
+	dep = (xfs_dir2_data_entry_t *)dup;
+	/*
+	 * Fill in the leaf entry.
+	 */
+	INT_SET(blp[mid].hashval, ARCH_CONVERT, args->hashval);
+	INT_SET(blp[mid].address, ARCH_CONVERT, XFS_DIR2_BYTE_TO_DATAPTR(mp, (char *)dep - (char *)block));
+	xfs_dir2_block_log_leaf(tp, bp, lfloglow, lfloghigh);
+	/*
+	 * Mark space for the data entry used.
+	 */
+	xfs_dir2_data_use_free(tp, bp, dup,
+		(xfs_dir2_data_aoff_t)((char *)dup - (char *)block),
+		(xfs_dir2_data_aoff_t)len, &needlog, &needscan);
+	/*
+	 * Create the new data entry.
+	 */
+	INT_SET(dep->inumber, ARCH_CONVERT, args->inumber);
+	dep->namelen = args->namelen;
+	memcpy(dep->name, args->name, args->namelen);
+	tagp = XFS_DIR2_DATA_ENTRY_TAG_P(dep);
+	INT_SET(*tagp, ARCH_CONVERT, (xfs_dir2_data_off_t)((char *)dep - (char *)block));
+	/*
+	 * Clean up the bestfree array and log the header, tail, and entry.
+	 */
+	if (needscan)
+		xfs_dir2_data_freescan(mp, (xfs_dir2_data_t *)block, &needlog,
+			NULL);
+	if (needlog)
+		xfs_dir2_data_log_header(tp, bp);
+	xfs_dir2_block_log_tail(tp, bp);
+	xfs_dir2_data_log_entry(tp, bp, dep);
+	xfs_dir2_data_check(dp, bp);
+	xfs_da_buf_done(bp);
+	return 0;
+}
+
+/*
+ * Readdir for block directories.
+ */
+int						/* error */
+xfs_dir2_block_getdents(
+	xfs_trans_t		*tp,		/* transaction (NULL) */
+	xfs_inode_t		*dp,		/* incore inode */
+	uio_t			*uio,		/* caller's buffer control */
+	int			*eofp,		/* eof reached? (out) */
+	xfs_dirent_t		*dbp,		/* caller's buffer */
+	xfs_dir2_put_t		put)		/* abi's formatting function */
+{
+	xfs_dir2_block_t	*block;		/* directory block structure */
+	xfs_dabuf_t		*bp;		/* buffer for block */
+	xfs_dir2_block_tail_t	*btp;		/* block tail */
+	xfs_dir2_data_entry_t	*dep;		/* block data entry */
+	xfs_dir2_data_unused_t	*dup;		/* block unused entry */
+	char			*endptr;	/* end of the data entries */
+	int			error;		/* error return value */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+	xfs_dir2_put_args_t	p;		/* arg package for put rtn */
+	char			*ptr;		/* current data entry */
+	int			wantoff;	/* starting block offset */
+
+	mp = dp->i_mount;
+	/*
+	 * If the block number in the offset is out of range, we're done.
+	 */
+	if (XFS_DIR2_DATAPTR_TO_DB(mp, uio->uio_offset) > mp->m_dirdatablk) {
+		*eofp = 1;
+		return 0;
+	}
+	/*
+	 * Can't read the block, give up, else get dabuf in bp.
+	 */
+	if ((error =
+	    xfs_da_read_buf(tp, dp, mp->m_dirdatablk, -1, &bp, XFS_DATA_FORK))) {
+		return error;
+	}
+	ASSERT(bp != NULL);
+	/*
+	 * Extract the byte offset we start at from the seek pointer.
+	 * We'll skip entries before this.
+	 */
+	wantoff = XFS_DIR2_DATAPTR_TO_OFF(mp, uio->uio_offset);
+	block = bp->data;
+	xfs_dir2_data_check(dp, bp);
+	/*
+	 * Set up values for the loop.
+	 */
+	btp = XFS_DIR2_BLOCK_TAIL_P(mp, block);
+	ptr = (char *)block->u;
+	endptr = (char *)XFS_DIR2_BLOCK_LEAF_P_ARCH(btp, ARCH_CONVERT);
+	p.dbp = dbp;
+	p.put = put;
+	p.uio = uio;
+	/*
+	 * Loop over the data portion of the block.
+	 * Each object is a real entry (dep) or an unused one (dup).
+	 */
+	while (ptr < endptr) {
+		dup = (xfs_dir2_data_unused_t *)ptr;
+		/*
+		 * Unused, skip it.
+		 */
+		if (INT_GET(dup->freetag, ARCH_CONVERT) == XFS_DIR2_DATA_FREE_TAG) {
+			ptr += INT_GET(dup->length, ARCH_CONVERT);
+			continue;
+		}
+
+		dep = (xfs_dir2_data_entry_t *)ptr;
+
+		/*
+		 * Bump pointer for the next iteration.
+		 */
+		ptr += XFS_DIR2_DATA_ENTSIZE(dep->namelen);
+		/*
+		 * The entry is before the desired starting point, skip it.
+		 */
+		if ((char *)dep - (char *)block < wantoff)
+			continue;
+		/*
+		 * Set up argument structure for put routine.
+		 */
+		p.namelen = dep->namelen;
+
+		p.cook = XFS_DIR2_DB_OFF_TO_DATAPTR(mp, mp->m_dirdatablk,
+						    ptr - (char *)block);
+		p.ino = INT_GET(dep->inumber, ARCH_CONVERT);
+#if XFS_BIG_INUMS
+		p.ino += mp->m_inoadd;
+#endif
+		p.name = (char *)dep->name;
+
+		/*
+		 * Put the entry in the caller's buffer.
+		 */
+		error = p.put(&p);
+
+		/*
+		 * If it didn't fit, set the final offset to here & return.
+		 */
+		if (!p.done) {
+			uio->uio_offset =
+				XFS_DIR2_DB_OFF_TO_DATAPTR(mp, mp->m_dirdatablk,
+					(char *)dep - (char *)block);
+			xfs_da_brelse(tp, bp);
+			return error;
+		}
+	}
+
+	/*
+	 * Reached the end of the block.
+	 * Set the offset to a nonexistent block 1 and return.
+	 */
+	*eofp = 1;
+
+	uio->uio_offset =
+		XFS_DIR2_DB_OFF_TO_DATAPTR(mp, mp->m_dirdatablk + 1, 0);
+
+	xfs_da_brelse(tp, bp);
+
+	return 0;
+}
+
+/*
+ * Log leaf entries from the block.
+ */
+static void
+xfs_dir2_block_log_leaf(
+	xfs_trans_t		*tp,		/* transaction structure */
+	xfs_dabuf_t		*bp,		/* block buffer */
+	int			first,		/* index of first logged leaf */
+	int			last)		/* index of last logged leaf */
+{
+	xfs_dir2_block_t	*block;		/* directory block structure */
+	xfs_dir2_leaf_entry_t	*blp;		/* block leaf entries */
+	xfs_dir2_block_tail_t	*btp;		/* block tail */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+
+	mp = tp->t_mountp;
+	block = bp->data;
+	btp = XFS_DIR2_BLOCK_TAIL_P(mp, block);
+	blp = XFS_DIR2_BLOCK_LEAF_P_ARCH(btp, ARCH_CONVERT);
+	xfs_da_log_buf(tp, bp, (uint)((char *)&blp[first] - (char *)block),
+		(uint)((char *)&blp[last + 1] - (char *)block - 1));
+}
+
+/*
+ * Log the block tail.
+ */
+static void
+xfs_dir2_block_log_tail(
+	xfs_trans_t		*tp,		/* transaction structure */
+	xfs_dabuf_t		*bp)		/* block buffer */
+{
+	xfs_dir2_block_t	*block;		/* directory block structure */
+	xfs_dir2_block_tail_t	*btp;		/* block tail */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+
+	mp = tp->t_mountp;
+	block = bp->data;
+	btp = XFS_DIR2_BLOCK_TAIL_P(mp, block);
+	xfs_da_log_buf(tp, bp, (uint)((char *)btp - (char *)block),
+		(uint)((char *)(btp + 1) - (char *)block - 1));
+}
+
+/*
+ * Look up an entry in the block.  This is the external routine,
+ * xfs_dir2_block_lookup_int does the real work.
+ */
+int						/* error */
+xfs_dir2_block_lookup(
+	xfs_da_args_t		*args)		/* dir lookup arguments */
+{
+	xfs_dir2_block_t	*block;		/* block structure */
+	xfs_dir2_leaf_entry_t	*blp;		/* block leaf entries */
+	xfs_dabuf_t		*bp;		/* block buffer */
+	xfs_dir2_block_tail_t	*btp;		/* block tail */
+	xfs_dir2_data_entry_t	*dep;		/* block data entry */
+	xfs_inode_t		*dp;		/* incore inode */
+	int			ent;		/* entry index */
+	int			error;		/* error return value */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+
+	xfs_dir2_trace_args("block_lookup", args);
+	/*
+	 * Get the buffer, look up the entry.
+	 * If not found (ENOENT) then return, have no buffer.
+	 */
+	if ((error = xfs_dir2_block_lookup_int(args, &bp, &ent)))
+		return error;
+	dp = args->dp;
+	mp = dp->i_mount;
+	block = bp->data;
+	xfs_dir2_data_check(dp, bp);
+	btp = XFS_DIR2_BLOCK_TAIL_P(mp, block);
+	blp = XFS_DIR2_BLOCK_LEAF_P_ARCH(btp, ARCH_CONVERT);
+	/*
+	 * Get the offset from the leaf entry, to point to the data.
+	 */
+	dep = (xfs_dir2_data_entry_t *)
+	      ((char *)block + XFS_DIR2_DATAPTR_TO_OFF(mp, INT_GET(blp[ent].address, ARCH_CONVERT)));
+	/*
+	 * Fill in inode number, release the block.
+	 */
+	args->inumber = INT_GET(dep->inumber, ARCH_CONVERT);
+	xfs_da_brelse(args->trans, bp);
+	return XFS_ERROR(EEXIST);
+}
+
+/*
+ * Internal block lookup routine.
+ */
+static int					/* error */
+xfs_dir2_block_lookup_int(
+	xfs_da_args_t		*args,		/* dir lookup arguments */
+	xfs_dabuf_t		**bpp,		/* returned block buffer */
+	int			*entno)		/* returned entry number */
+{
+	xfs_dir2_dataptr_t	addr;		/* data entry address */
+	xfs_dir2_block_t	*block;		/* block structure */
+	xfs_dir2_leaf_entry_t	*blp;		/* block leaf entries */
+	xfs_dabuf_t		*bp;		/* block buffer */
+	xfs_dir2_block_tail_t	*btp;		/* block tail */
+	xfs_dir2_data_entry_t	*dep;		/* block data entry */
+	xfs_inode_t		*dp;		/* incore inode */
+	int			error;		/* error return value */
+	xfs_dahash_t		hash;		/* found hash value */
+	int			high;		/* binary search high index */
+	int			low;		/* binary search low index */
+	int			mid;		/* binary search current idx */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+	xfs_trans_t		*tp;		/* transaction pointer */
+
+	dp = args->dp;
+	tp = args->trans;
+	mp = dp->i_mount;
+	/*
+	 * Read the buffer, return error if we can't get it.
+	 */
+	if ((error =
+	    xfs_da_read_buf(tp, dp, mp->m_dirdatablk, -1, &bp, XFS_DATA_FORK))) {
+		return error;
+	}
+	ASSERT(bp != NULL);
+	block = bp->data;
+	xfs_dir2_data_check(dp, bp);
+	btp = XFS_DIR2_BLOCK_TAIL_P(mp, block);
+	blp = XFS_DIR2_BLOCK_LEAF_P_ARCH(btp, ARCH_CONVERT);
+	/*
+	 * Loop doing a binary search for our hash value.
+	 * Find our entry, ENOENT if it's not there.
+	 */
+	for (low = 0, high = INT_GET(btp->count, ARCH_CONVERT) - 1; ; ) {
+		ASSERT(low <= high);
+		mid = (low + high) >> 1;
+		if ((hash = INT_GET(blp[mid].hashval, ARCH_CONVERT)) == args->hashval)
+			break;
+		if (hash < args->hashval)
+			low = mid + 1;
+		else
+			high = mid - 1;
+		if (low > high) {
+			ASSERT(args->oknoent);
+			xfs_da_brelse(tp, bp);
+			return XFS_ERROR(ENOENT);
+		}
+	}
+	/*
+	 * Back up to the first one with the right hash value.
+	 */
+	while (mid > 0 && INT_GET(blp[mid - 1].hashval, ARCH_CONVERT) == args->hashval) {
+		mid--;
+	}
+	/*
+	 * Now loop forward through all the entries with the
+	 * right hash value looking for our name.
+	 */
+	do {
+		if ((addr = INT_GET(blp[mid].address, ARCH_CONVERT)) == XFS_DIR2_NULL_DATAPTR)
+			continue;
+		/*
+		 * Get pointer to the entry from the leaf.
+		 */
+		dep = (xfs_dir2_data_entry_t *)
+			((char *)block + XFS_DIR2_DATAPTR_TO_OFF(mp, addr));
+		/*
+		 * Compare, if it's right give back buffer & entry number.
+		 */
+		if (dep->namelen == args->namelen &&
+		    dep->name[0] == args->name[0] &&
+		    memcmp(dep->name, args->name, args->namelen) == 0) {
+			*bpp = bp;
+			*entno = mid;
+			return 0;
+		}
+	} while (++mid < INT_GET(btp->count, ARCH_CONVERT) && INT_GET(blp[mid].hashval, ARCH_CONVERT) == hash);
+	/*
+	 * No match, release the buffer and return ENOENT.
+	 */
+	ASSERT(args->oknoent);
+	xfs_da_brelse(tp, bp);
+	return XFS_ERROR(ENOENT);
+}
+
+/*
+ * Remove an entry from a block format directory.
+ * If that makes the block small enough to fit in shortform, transform it.
+ */
+int						/* error */
+xfs_dir2_block_removename(
+	xfs_da_args_t		*args)		/* directory operation args */
+{
+	xfs_dir2_block_t	*block;		/* block structure */
+	xfs_dir2_leaf_entry_t	*blp;		/* block leaf pointer */
+	xfs_dabuf_t		*bp;		/* block buffer */
+	xfs_dir2_block_tail_t	*btp;		/* block tail */
+	xfs_dir2_data_entry_t	*dep;		/* block data entry */
+	xfs_inode_t		*dp;		/* incore inode */
+	int			ent;		/* block leaf entry index */
+	int			error;		/* error return value */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+	int			needlog;	/* need to log block header */
+	int			needscan;	/* need to fixup bestfree */
+	xfs_dir2_sf_hdr_t	sfh;		/* shortform header */
+	int			size;		/* shortform size */
+	xfs_trans_t		*tp;		/* transaction pointer */
+
+	xfs_dir2_trace_args("block_removename", args);
+	/*
+	 * Look up the entry in the block.  Gets the buffer and entry index.
+	 * It will always be there, the vnodeops level does a lookup first.
+	 */
+	if ((error = xfs_dir2_block_lookup_int(args, &bp, &ent))) {
+		return error;
+	}
+	dp = args->dp;
+	tp = args->trans;
+	mp = dp->i_mount;
+	block = bp->data;
+	btp = XFS_DIR2_BLOCK_TAIL_P(mp, block);
+	blp = XFS_DIR2_BLOCK_LEAF_P_ARCH(btp, ARCH_CONVERT);
+	/*
+	 * Point to the data entry using the leaf entry.
+	 */
+	dep = (xfs_dir2_data_entry_t *)
+	      ((char *)block + XFS_DIR2_DATAPTR_TO_OFF(mp, INT_GET(blp[ent].address, ARCH_CONVERT)));
+	/*
+	 * Mark the data entry's space free.
+	 */
+	needlog = needscan = 0;
+	xfs_dir2_data_make_free(tp, bp,
+		(xfs_dir2_data_aoff_t)((char *)dep - (char *)block),
+		XFS_DIR2_DATA_ENTSIZE(dep->namelen), &needlog, &needscan);
+	/*
+	 * Fix up the block tail.
+	 */
+	INT_MOD(btp->stale, ARCH_CONVERT, +1);
+	xfs_dir2_block_log_tail(tp, bp);
+	/*
+	 * Remove the leaf entry by marking it stale.
+	 */
+	INT_SET(blp[ent].address, ARCH_CONVERT, XFS_DIR2_NULL_DATAPTR);
+	xfs_dir2_block_log_leaf(tp, bp, ent, ent);
+	/*
+	 * Fix up bestfree, log the header if necessary.
+	 */
+	if (needscan)
+		xfs_dir2_data_freescan(mp, (xfs_dir2_data_t *)block, &needlog,
+			NULL);
+	if (needlog)
+		xfs_dir2_data_log_header(tp, bp);
+	xfs_dir2_data_check(dp, bp);
+	/*
+	 * See if the size as a shortform is good enough.
+	 */
+	if ((size = xfs_dir2_block_sfsize(dp, block, &sfh)) >
+	    XFS_IFORK_DSIZE(dp)) {
+		xfs_da_buf_done(bp);
+		return 0;
+	}
+	/*
+	 * If it works, do the conversion.
+	 */
+	return xfs_dir2_block_to_sf(args, bp, size, &sfh);
+}
+
+/*
+ * Replace an entry in a V2 block directory.
+ * Change the inode number to the new value.
+ */
+int						/* error */
+xfs_dir2_block_replace(
+	xfs_da_args_t		*args)		/* directory operation args */
+{
+	xfs_dir2_block_t	*block;		/* block structure */
+	xfs_dir2_leaf_entry_t	*blp;		/* block leaf entries */
+	xfs_dabuf_t		*bp;		/* block buffer */
+	xfs_dir2_block_tail_t	*btp;		/* block tail */
+	xfs_dir2_data_entry_t	*dep;		/* block data entry */
+	xfs_inode_t		*dp;		/* incore inode */
+	int			ent;		/* leaf entry index */
+	int			error;		/* error return value */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+
+	xfs_dir2_trace_args("block_replace", args);
+	/*
+	 * Lookup the entry in the directory.  Get buffer and entry index.
+	 * This will always succeed since the caller has already done a lookup.
+	 */
+	if ((error = xfs_dir2_block_lookup_int(args, &bp, &ent))) {
+		return error;
+	}
+	dp = args->dp;
+	mp = dp->i_mount;
+	block = bp->data;
+	btp = XFS_DIR2_BLOCK_TAIL_P(mp, block);
+	blp = XFS_DIR2_BLOCK_LEAF_P_ARCH(btp, ARCH_CONVERT);
+	/*
+	 * Point to the data entry we need to change.
+	 */
+	dep = (xfs_dir2_data_entry_t *)
+	      ((char *)block + XFS_DIR2_DATAPTR_TO_OFF(mp, INT_GET(blp[ent].address, ARCH_CONVERT)));
+	ASSERT(INT_GET(dep->inumber, ARCH_CONVERT) != args->inumber);
+	/*
+	 * Change the inode number to the new value.
+	 */
+	INT_SET(dep->inumber, ARCH_CONVERT, args->inumber);
+	xfs_dir2_data_log_entry(args->trans, bp, dep);
+	xfs_dir2_data_check(dp, bp);
+	xfs_da_buf_done(bp);
+	return 0;
+}
+
+/*
+ * Qsort comparison routine for the block leaf entries.
+ */
+static int					/* sort order */
+xfs_dir2_block_sort(
+	const void			*a,	/* first leaf entry */
+	const void			*b)	/* second leaf entry */
+{
+	const xfs_dir2_leaf_entry_t	*la;	/* first leaf entry */
+	const xfs_dir2_leaf_entry_t	*lb;	/* second leaf entry */
+
+	la = a;
+	lb = b;
+	return INT_GET(la->hashval, ARCH_CONVERT) < INT_GET(lb->hashval, ARCH_CONVERT) ? -1 :
+		(INT_GET(la->hashval, ARCH_CONVERT) > INT_GET(lb->hashval, ARCH_CONVERT) ? 1 : 0);
+}
+
+/*
+ * Convert a V2 leaf directory to a V2 block directory if possible.
+ */
+int						/* error */
+xfs_dir2_leaf_to_block(
+	xfs_da_args_t		*args,		/* operation arguments */
+	xfs_dabuf_t		*lbp,		/* leaf buffer */
+	xfs_dabuf_t		*dbp)		/* data buffer */
+{
+	xfs_dir2_data_off_t	*bestsp;	/* leaf bests table */
+	xfs_dir2_block_t	*block;		/* block structure */
+	xfs_dir2_block_tail_t	*btp;		/* block tail */
+	xfs_inode_t		*dp;		/* incore directory inode */
+	xfs_dir2_data_unused_t	*dup;		/* unused data entry */
+	int			error;		/* error return value */
+	int			from;		/* leaf from index */
+	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
+	xfs_dir2_leaf_entry_t	*lep;		/* leaf entry */
+	xfs_dir2_leaf_tail_t	*ltp;		/* leaf tail structure */
+	xfs_mount_t		*mp;		/* file system mount point */
+	int			needlog;	/* need to log data header */
+	int			needscan;	/* need to scan for bestfree */
+	xfs_dir2_sf_hdr_t	sfh;		/* shortform header */
+	int			size;		/* bytes used */
+	xfs_dir2_data_off_t	*tagp;		/* end of entry (tag) */
+	int			to;		/* block/leaf to index */
+	xfs_trans_t		*tp;		/* transaction pointer */
+
+	xfs_dir2_trace_args_bb("leaf_to_block", args, lbp, dbp);
+	dp = args->dp;
+	tp = args->trans;
+	mp = dp->i_mount;
+	leaf = lbp->data;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR2_LEAF1_MAGIC);
+	ltp = XFS_DIR2_LEAF_TAIL_P(mp, leaf);
+	/*
+	 * If there are data blocks other than the first one, take this
+	 * opportunity to remove trailing empty data blocks that may have
+	 * been left behind during no-space-reservation operations.
+	 * These will show up in the leaf bests table.
+	 */
+	while (dp->i_d.di_size > mp->m_dirblksize) {
+		bestsp = XFS_DIR2_LEAF_BESTS_P_ARCH(ltp, ARCH_CONVERT);
+		if (INT_GET(bestsp[INT_GET(ltp->bestcount, ARCH_CONVERT) - 1], ARCH_CONVERT) ==
+		    mp->m_dirblksize - (uint)sizeof(block->hdr)) {
+			if ((error =
+			    xfs_dir2_leaf_trim_data(args, lbp,
+				    (xfs_dir2_db_t)(INT_GET(ltp->bestcount, ARCH_CONVERT) - 1))))
+				goto out;
+		} else {
+			error = 0;
+			goto out;
+		}
+	}
+	/*
+	 * Read the data block if we don't already have it, give up if it fails.
+	 */
+	if (dbp == NULL &&
+	    (error = xfs_da_read_buf(tp, dp, mp->m_dirdatablk, -1, &dbp,
+		    XFS_DATA_FORK))) {
+		goto out;
+	}
+	block = dbp->data;
+	ASSERT(INT_GET(block->hdr.magic, ARCH_CONVERT) == XFS_DIR2_DATA_MAGIC);
+	/*
+	 * Size of the "leaf" area in the block.
+	 */
+	size = (uint)sizeof(block->tail) +
+	       (uint)sizeof(*lep) * (INT_GET(leaf->hdr.count, ARCH_CONVERT) - INT_GET(leaf->hdr.stale, ARCH_CONVERT));
+	/*
+	 * Look at the last data entry.
+	 */
+	tagp = (xfs_dir2_data_off_t *)((char *)block + mp->m_dirblksize) - 1;
+	dup = (xfs_dir2_data_unused_t *)((char *)block + INT_GET(*tagp, ARCH_CONVERT));
+	/*
+	 * If it's not free or is too short we can't do it.
+	 */
+	if (INT_GET(dup->freetag, ARCH_CONVERT) != XFS_DIR2_DATA_FREE_TAG || INT_GET(dup->length, ARCH_CONVERT) < size) {
+		error = 0;
+		goto out;
+	}
+	/*
+	 * Start converting it to block form.
+	 */
+	INT_SET(block->hdr.magic, ARCH_CONVERT, XFS_DIR2_BLOCK_MAGIC);
+	needlog = 1;
+	needscan = 0;
+	/*
+	 * Use up the space at the end of the block (blp/btp).
+	 */
+	xfs_dir2_data_use_free(tp, dbp, dup, mp->m_dirblksize - size, size,
+		&needlog, &needscan);
+	/*
+	 * Initialize the block tail.
+	 */
+	btp = XFS_DIR2_BLOCK_TAIL_P(mp, block);
+	INT_SET(btp->count, ARCH_CONVERT, INT_GET(leaf->hdr.count, ARCH_CONVERT) - INT_GET(leaf->hdr.stale, ARCH_CONVERT));
+	INT_ZERO(btp->stale, ARCH_CONVERT);
+	xfs_dir2_block_log_tail(tp, dbp);
+	/*
+	 * Initialize the block leaf area.  We compact out stale entries.
+	 */
+	lep = XFS_DIR2_BLOCK_LEAF_P_ARCH(btp, ARCH_CONVERT);
+	for (from = to = 0; from < INT_GET(leaf->hdr.count, ARCH_CONVERT); from++) {
+		if (INT_GET(leaf->ents[from].address, ARCH_CONVERT) == XFS_DIR2_NULL_DATAPTR)
+			continue;
+		lep[to++] = leaf->ents[from];
+	}
+	ASSERT(to == INT_GET(btp->count, ARCH_CONVERT));
+	xfs_dir2_block_log_leaf(tp, dbp, 0, INT_GET(btp->count, ARCH_CONVERT) - 1);
+	/*
+	 * Scan the bestfree if we need it and log the data block header.
+	 */
+	if (needscan)
+		xfs_dir2_data_freescan(mp, (xfs_dir2_data_t *)block, &needlog,
+			NULL);
+	if (needlog)
+		xfs_dir2_data_log_header(tp, dbp);
+	/*
+	 * Pitch the old leaf block.
+	 */
+	error = xfs_da_shrink_inode(args, mp->m_dirleafblk, lbp);
+	lbp = NULL;
+	if (error) {
+		goto out;
+	}
+	/*
+	 * Now see if the resulting block can be shrunken to shortform.
+	 */
+	if ((size = xfs_dir2_block_sfsize(dp, block, &sfh)) >
+	    XFS_IFORK_DSIZE(dp)) {
+		error = 0;
+		goto out;
+	}
+	return xfs_dir2_block_to_sf(args, dbp, size, &sfh);
+out:
+	if (lbp)
+		xfs_da_buf_done(lbp);
+	if (dbp)
+		xfs_da_buf_done(dbp);
+	return error;
+}
+
+/*
+ * Convert the shortform directory to block form.
+ */
+int						/* error */
+xfs_dir2_sf_to_block(
+	xfs_da_args_t		*args)		/* operation arguments */
+{
+	xfs_dir2_db_t		blkno;		/* dir-relative block # (0) */
+	xfs_dir2_block_t	*block;		/* block structure */
+	xfs_dir2_leaf_entry_t	*blp;		/* block leaf entries */
+	xfs_dabuf_t		*bp;		/* block buffer */
+	xfs_dir2_block_tail_t	*btp;		/* block tail pointer */
+	char			*buf;		/* sf buffer */
+	int			buf_len;
+	xfs_dir2_data_entry_t	*dep;		/* data entry pointer */
+	xfs_inode_t		*dp;		/* incore directory inode */
+	int			dummy;		/* trash */
+	xfs_dir2_data_unused_t	*dup;		/* unused entry pointer */
+	int			endoffset;	/* end of data objects */
+	int			error;		/* error return value */
+	int			i;		/* index */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+	int			needlog;	/* need to log block header */
+	int			needscan;	/* need to scan block freespc */
+	int			newoffset;	/* offset from current entry */
+	int			offset;		/* target block offset */
+	xfs_dir2_sf_entry_t	*sfep;		/* sf entry pointer */
+	xfs_dir2_sf_t		*sfp;		/* shortform structure */
+	xfs_dir2_data_off_t	*tagp;		/* end of data entry */
+	xfs_trans_t		*tp;		/* transaction pointer */
+
+	xfs_dir2_trace_args("sf_to_block", args);
+	dp = args->dp;
+	tp = args->trans;
+	mp = dp->i_mount;
+	ASSERT(dp->i_df.if_flags & XFS_IFINLINE);
+	/*
+	 * Bomb out if the shortform directory is way too short.
+	 */
+	if (dp->i_d.di_size < offsetof(xfs_dir2_sf_hdr_t, parent)) {
+		ASSERT(XFS_FORCED_SHUTDOWN(mp));
+		return XFS_ERROR(EIO);
+	}
+	ASSERT(dp->i_df.if_bytes == dp->i_d.di_size);
+	ASSERT(dp->i_df.if_u1.if_data != NULL);
+	sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data;
+	ASSERT(dp->i_d.di_size >= XFS_DIR2_SF_HDR_SIZE(sfp->hdr.i8count));
+	/*
+	 * Copy the directory into the stack buffer.
+	 * Then pitch the incore inode data so we can make extents.
+	 */
+
+	buf_len = dp->i_df.if_bytes;
+	buf = kmem_alloc(dp->i_df.if_bytes, KM_SLEEP);
+
+	memcpy(buf, sfp, dp->i_df.if_bytes);
+	xfs_idata_realloc(dp, -dp->i_df.if_bytes, XFS_DATA_FORK);
+	dp->i_d.di_size = 0;
+	xfs_trans_log_inode(tp, dp, XFS_ILOG_CORE);
+	/*
+	 * Reset pointer - old sfp is gone.
+	 */
+	sfp = (xfs_dir2_sf_t *)buf;
+	/*
+	 * Add block 0 to the inode.
+	 */
+	error = xfs_dir2_grow_inode(args, XFS_DIR2_DATA_SPACE, &blkno);
+	if (error) {
+		kmem_free(buf, buf_len);
+		return error;
+	}
+	/*
+	 * Initialize the data block.
+	 */
+	error = xfs_dir2_data_init(args, blkno, &bp);
+	if (error) {
+		kmem_free(buf, buf_len);
+		return error;
+	}
+	block = bp->data;
+	INT_SET(block->hdr.magic, ARCH_CONVERT, XFS_DIR2_BLOCK_MAGIC);
+	/*
+	 * Compute size of block "tail" area.
+	 */
+	i = (uint)sizeof(*btp) +
+	    (INT_GET(sfp->hdr.count, ARCH_CONVERT) + 2) * (uint)sizeof(xfs_dir2_leaf_entry_t);
+	/*
+	 * The whole thing is initialized to free by the init routine.
+	 * Say we're using the leaf and tail area.
+	 */
+	dup = (xfs_dir2_data_unused_t *)block->u;
+	needlog = needscan = 0;
+	xfs_dir2_data_use_free(tp, bp, dup, mp->m_dirblksize - i, i, &needlog,
+		&needscan);
+	ASSERT(needscan == 0);
+	/*
+	 * Fill in the tail.
+	 */
+	btp = XFS_DIR2_BLOCK_TAIL_P(mp, block);
+	INT_SET(btp->count, ARCH_CONVERT, INT_GET(sfp->hdr.count, ARCH_CONVERT) + 2);	/* ., .. */
+	INT_ZERO(btp->stale, ARCH_CONVERT);
+	blp = XFS_DIR2_BLOCK_LEAF_P_ARCH(btp, ARCH_CONVERT);
+	endoffset = (uint)((char *)blp - (char *)block);
+	/*
+	 * Remove the freespace, we'll manage it.
+	 */
+	xfs_dir2_data_use_free(tp, bp, dup,
+		(xfs_dir2_data_aoff_t)((char *)dup - (char *)block),
+		INT_GET(dup->length, ARCH_CONVERT), &needlog, &needscan);
+	/*
+	 * Create entry for .
+	 */
+	dep = (xfs_dir2_data_entry_t *)
+	      ((char *)block + XFS_DIR2_DATA_DOT_OFFSET);
+	INT_SET(dep->inumber, ARCH_CONVERT, dp->i_ino);
+	dep->namelen = 1;
+	dep->name[0] = '.';
+	tagp = XFS_DIR2_DATA_ENTRY_TAG_P(dep);
+	INT_SET(*tagp, ARCH_CONVERT, (xfs_dir2_data_off_t)((char *)dep - (char *)block));
+	xfs_dir2_data_log_entry(tp, bp, dep);
+	INT_SET(blp[0].hashval, ARCH_CONVERT, xfs_dir_hash_dot);
+	INT_SET(blp[0].address, ARCH_CONVERT, XFS_DIR2_BYTE_TO_DATAPTR(mp, (char *)dep - (char *)block));
+	/*
+	 * Create entry for ..
+	 */
+	dep = (xfs_dir2_data_entry_t *)
+		((char *)block + XFS_DIR2_DATA_DOTDOT_OFFSET);
+	INT_SET(dep->inumber, ARCH_CONVERT, XFS_DIR2_SF_GET_INUMBER_ARCH(sfp, &sfp->hdr.parent, ARCH_CONVERT));
+	dep->namelen = 2;
+	dep->name[0] = dep->name[1] = '.';
+	tagp = XFS_DIR2_DATA_ENTRY_TAG_P(dep);
+	INT_SET(*tagp, ARCH_CONVERT, (xfs_dir2_data_off_t)((char *)dep - (char *)block));
+	xfs_dir2_data_log_entry(tp, bp, dep);
+	INT_SET(blp[1].hashval, ARCH_CONVERT, xfs_dir_hash_dotdot);
+	INT_SET(blp[1].address, ARCH_CONVERT, XFS_DIR2_BYTE_TO_DATAPTR(mp, (char *)dep - (char *)block));
+	offset = XFS_DIR2_DATA_FIRST_OFFSET;
+	/*
+	 * Loop over existing entries, stuff them in.
+	 */
+	if ((i = 0) == INT_GET(sfp->hdr.count, ARCH_CONVERT))
+		sfep = NULL;
+	else
+		sfep = XFS_DIR2_SF_FIRSTENTRY(sfp);
+	/*
+	 * Need to preserve the existing offset values in the sf directory.
+	 * Insert holes (unused entries) where necessary.
+	 */
+	while (offset < endoffset) {
+		/*
+		 * sfep is null when we reach the end of the list.
+		 */
+		if (sfep == NULL)
+			newoffset = endoffset;
+		else
+			newoffset = XFS_DIR2_SF_GET_OFFSET_ARCH(sfep, ARCH_CONVERT);
+		/*
+		 * There should be a hole here, make one.
+		 */
+		if (offset < newoffset) {
+			dup = (xfs_dir2_data_unused_t *)
+			      ((char *)block + offset);
+			INT_SET(dup->freetag, ARCH_CONVERT, XFS_DIR2_DATA_FREE_TAG);
+			INT_SET(dup->length, ARCH_CONVERT, newoffset - offset);
+			INT_SET(*XFS_DIR2_DATA_UNUSED_TAG_P_ARCH(dup, ARCH_CONVERT), ARCH_CONVERT,
+				(xfs_dir2_data_off_t)
+				((char *)dup - (char *)block));
+			xfs_dir2_data_log_unused(tp, bp, dup);
+			(void)xfs_dir2_data_freeinsert((xfs_dir2_data_t *)block,
+				dup, &dummy);
+			offset += INT_GET(dup->length, ARCH_CONVERT);
+			continue;
+		}
+		/*
+		 * Copy a real entry.
+		 */
+		dep = (xfs_dir2_data_entry_t *)((char *)block + newoffset);
+		INT_SET(dep->inumber, ARCH_CONVERT, XFS_DIR2_SF_GET_INUMBER_ARCH(sfp,
+				XFS_DIR2_SF_INUMBERP(sfep), ARCH_CONVERT));
+		dep->namelen = sfep->namelen;
+		memcpy(dep->name, sfep->name, dep->namelen);
+		tagp = XFS_DIR2_DATA_ENTRY_TAG_P(dep);
+		INT_SET(*tagp, ARCH_CONVERT, (xfs_dir2_data_off_t)((char *)dep - (char *)block));
+		xfs_dir2_data_log_entry(tp, bp, dep);
+		INT_SET(blp[2 + i].hashval, ARCH_CONVERT, xfs_da_hashname((char *)sfep->name, sfep->namelen));
+		INT_SET(blp[2 + i].address, ARCH_CONVERT, XFS_DIR2_BYTE_TO_DATAPTR(mp,
+						 (char *)dep - (char *)block));
+		offset = (int)((char *)(tagp + 1) - (char *)block);
+		if (++i == INT_GET(sfp->hdr.count, ARCH_CONVERT))
+			sfep = NULL;
+		else
+			sfep = XFS_DIR2_SF_NEXTENTRY(sfp, sfep);
+	}
+	/* Done with the temporary buffer */
+	kmem_free(buf, buf_len);
+	/*
+	 * Sort the leaf entries by hash value.
+	 */
+	qsort(blp, INT_GET(btp->count, ARCH_CONVERT), sizeof(*blp), xfs_dir2_block_sort);
+	/*
+	 * Log the leaf entry area and tail.
+	 * Already logged the header in data_init, ignore needlog.
+	 */
+	ASSERT(needscan == 0);
+	xfs_dir2_block_log_leaf(tp, bp, 0, INT_GET(btp->count, ARCH_CONVERT) - 1);
+	xfs_dir2_block_log_tail(tp, bp);
+	xfs_dir2_data_check(dp, bp);
+	xfs_da_buf_done(bp);
+	return 0;
+}
diff --git a/fs/xfs/xfs_dir2_block.h b/fs/xfs/xfs_dir2_block.h
new file mode 100644
index 00000000000000..3c4f70c915eff0
--- /dev/null
+++ b/fs/xfs/xfs_dir2_block.h
@@ -0,0 +1,127 @@
+/*
+ * Copyright (c) 2000-2001 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_DIR2_BLOCK_H__
+#define	__XFS_DIR2_BLOCK_H__
+
+/*
+ * xfs_dir2_block.h
+ * Directory version 2, single block format structures
+ */
+
+struct uio;
+struct xfs_dabuf;
+struct xfs_da_args;
+struct xfs_dir2_data_hdr;
+struct xfs_dir2_leaf_entry;
+struct xfs_inode;
+struct xfs_mount;
+struct xfs_trans;
+
+/*
+ * The single block format is as follows:
+ * xfs_dir2_data_hdr_t structure
+ * xfs_dir2_data_entry_t and xfs_dir2_data_unused_t structures
+ * xfs_dir2_leaf_entry_t structures
+ * xfs_dir2_block_tail_t structure
+ */
+
+#define	XFS_DIR2_BLOCK_MAGIC	0x58443242	/* XD2B: for one block dirs */
+
+typedef struct xfs_dir2_block_tail {
+	__uint32_t	count;			/* count of leaf entries */
+	__uint32_t	stale;			/* count of stale lf entries */
+} xfs_dir2_block_tail_t;
+
+/*
+ * Generic single-block structure, for xfs_db.
+ */
+typedef struct xfs_dir2_block {
+	xfs_dir2_data_hdr_t	hdr;		/* magic XFS_DIR2_BLOCK_MAGIC */
+	xfs_dir2_data_union_t	u[1];
+	xfs_dir2_leaf_entry_t	leaf[1];
+	xfs_dir2_block_tail_t	tail;
+} xfs_dir2_block_t;
+
+/*
+ * Pointer to the leaf header embedded in a data block (1-block format)
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_BLOCK_TAIL_P)
+xfs_dir2_block_tail_t *
+xfs_dir2_block_tail_p(struct xfs_mount *mp, xfs_dir2_block_t *block);
+#define	XFS_DIR2_BLOCK_TAIL_P(mp,block)	xfs_dir2_block_tail_p(mp,block)
+#else
+#define	XFS_DIR2_BLOCK_TAIL_P(mp,block)	\
+	(((xfs_dir2_block_tail_t *)((char *)(block) + (mp)->m_dirblksize)) - 1)
+#endif
+
+/*
+ * Pointer to the leaf entries embedded in a data block (1-block format)
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_BLOCK_LEAF_P)
+struct xfs_dir2_leaf_entry *xfs_dir2_block_leaf_p_arch(
+	xfs_dir2_block_tail_t *btp, xfs_arch_t arch);
+#define	XFS_DIR2_BLOCK_LEAF_P_ARCH(btp,arch) \
+	xfs_dir2_block_leaf_p_arch(btp,arch)
+#else
+#define	XFS_DIR2_BLOCK_LEAF_P_ARCH(btp,arch)	\
+	(((struct xfs_dir2_leaf_entry *)(btp)) - INT_GET((btp)->count, arch))
+#endif
+
+/*
+ * Function declarations.
+ */
+
+extern int
+	xfs_dir2_block_addname(struct xfs_da_args *args);
+
+extern int
+	xfs_dir2_block_getdents(struct xfs_trans *tp, struct xfs_inode *dp,
+				struct uio *uio, int *eofp, struct xfs_dirent *dbp,
+				xfs_dir2_put_t put);
+
+extern int
+	xfs_dir2_block_lookup(struct xfs_da_args *args);
+
+extern int
+	xfs_dir2_block_removename(struct xfs_da_args *args);
+
+extern int
+	xfs_dir2_block_replace(struct xfs_da_args *args);
+
+extern int
+	xfs_dir2_leaf_to_block(struct xfs_da_args *args, struct xfs_dabuf *lbp,
+			       struct xfs_dabuf *dbp);
+
+extern int
+	xfs_dir2_sf_to_block(struct xfs_da_args *args);
+
+#endif	/* __XFS_DIR2_BLOCK_H__ */
diff --git a/fs/xfs/xfs_dir2_data.c b/fs/xfs/xfs_dir2_data.c
new file mode 100644
index 00000000000000..c1b8ea010a91d4
--- /dev/null
+++ b/fs/xfs/xfs_dir2_data.c
@@ -0,0 +1,855 @@
+/*
+ * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+/*
+ * xfs_dir2_data.c
+ * Core data block handling routines for XFS V2 directories.
+ * See xfs_dir2_data.h for data structures.
+ */
+
+#include "xfs.h"
+
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_da_btree.h"
+#include "xfs_dir_leaf.h"
+#include "xfs_dir2_data.h"
+#include "xfs_dir2_leaf.h"
+#include "xfs_dir2_block.h"
+#include "xfs_error.h"
+
+#ifdef DEBUG
+/*
+ * Check the consistency of the data block.
+ * The input can also be a block-format directory.
+ * Pop an assert if we find anything bad.
+ */
+void
+xfs_dir2_data_check(
+	xfs_inode_t		*dp,		/* incore inode pointer */
+	xfs_dabuf_t		*bp)		/* data block's buffer */
+{
+	xfs_dir2_dataptr_t	addr;		/* addr for leaf lookup */
+	xfs_dir2_data_free_t	*bf;		/* bestfree table */
+	xfs_dir2_block_tail_t	*btp=NULL;	/* block tail */
+	int			count;		/* count of entries found */
+	xfs_dir2_data_t		*d;		/* data block pointer */
+	xfs_dir2_data_entry_t	*dep;		/* data entry */
+	xfs_dir2_data_free_t	*dfp;		/* bestfree entry */
+	xfs_dir2_data_unused_t	*dup;		/* unused entry */
+	char			*endp;		/* end of useful data */
+	int			freeseen;	/* mask of bestfrees seen */
+	xfs_dahash_t		hash;		/* hash of current name */
+	int			i;		/* leaf index */
+	int			lastfree;	/* last entry was unused */
+	xfs_dir2_leaf_entry_t	*lep=NULL;	/* block leaf entries */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+	char			*p;		/* current data position */
+	int			stale;		/* count of stale leaves */
+
+	mp = dp->i_mount;
+	d = bp->data;
+	ASSERT(INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_DATA_MAGIC ||
+	       INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_BLOCK_MAGIC);
+	bf = d->hdr.bestfree;
+	p = (char *)d->u;
+	if (INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_BLOCK_MAGIC) {
+		btp = XFS_DIR2_BLOCK_TAIL_P(mp, (xfs_dir2_block_t *)d);
+		lep = XFS_DIR2_BLOCK_LEAF_P_ARCH(btp, ARCH_CONVERT);
+		endp = (char *)lep;
+	} else
+		endp = (char *)d + mp->m_dirblksize;
+	count = lastfree = freeseen = 0;
+	/*
+	 * Account for zero bestfree entries.
+	 */
+	if (INT_ISZERO(bf[0].length, ARCH_CONVERT)) {
+		ASSERT(INT_ISZERO(bf[0].offset, ARCH_CONVERT));
+		freeseen |= 1 << 0;
+	}
+	if (INT_ISZERO(bf[1].length, ARCH_CONVERT)) {
+		ASSERT(INT_ISZERO(bf[1].offset, ARCH_CONVERT));
+		freeseen |= 1 << 1;
+	}
+	if (INT_ISZERO(bf[2].length, ARCH_CONVERT)) {
+		ASSERT(INT_ISZERO(bf[2].offset, ARCH_CONVERT));
+		freeseen |= 1 << 2;
+	}
+	ASSERT(INT_GET(bf[0].length, ARCH_CONVERT) >= INT_GET(bf[1].length, ARCH_CONVERT));
+	ASSERT(INT_GET(bf[1].length, ARCH_CONVERT) >= INT_GET(bf[2].length, ARCH_CONVERT));
+	/*
+	 * Loop over the data/unused entries.
+	 */
+	while (p < endp) {
+		dup = (xfs_dir2_data_unused_t *)p;
+		/*
+		 * If it's unused, look for the space in the bestfree table.
+		 * If we find it, account for that, else make sure it
+		 * doesn't need to be there.
+		 */
+		if (INT_GET(dup->freetag, ARCH_CONVERT) == XFS_DIR2_DATA_FREE_TAG) {
+			ASSERT(lastfree == 0);
+			ASSERT(INT_GET(*XFS_DIR2_DATA_UNUSED_TAG_P_ARCH(dup, ARCH_CONVERT), ARCH_CONVERT) ==
+			       (char *)dup - (char *)d);
+			dfp = xfs_dir2_data_freefind(d, dup);
+			if (dfp) {
+				i = (int)(dfp - bf);
+				ASSERT((freeseen & (1 << i)) == 0);
+				freeseen |= 1 << i;
+			} else
+				ASSERT(INT_GET(dup->length, ARCH_CONVERT) <= INT_GET(bf[2].length, ARCH_CONVERT));
+			p += INT_GET(dup->length, ARCH_CONVERT);
+			lastfree = 1;
+			continue;
+		}
+		/*
+		 * It's a real entry.  Validate the fields.
+		 * If this is a block directory then make sure it's
+		 * in the leaf section of the block.
+		 * The linear search is crude but this is DEBUG code.
+		 */
+		dep = (xfs_dir2_data_entry_t *)p;
+		ASSERT(dep->namelen != 0);
+		ASSERT(xfs_dir_ino_validate(mp, INT_GET(dep->inumber, ARCH_CONVERT)) == 0);
+		ASSERT(INT_GET(*XFS_DIR2_DATA_ENTRY_TAG_P(dep), ARCH_CONVERT) ==
+		       (char *)dep - (char *)d);
+		count++;
+		lastfree = 0;
+		if (INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_BLOCK_MAGIC) {
+			addr = XFS_DIR2_DB_OFF_TO_DATAPTR(mp, mp->m_dirdatablk,
+				(xfs_dir2_data_aoff_t)
+				((char *)dep - (char *)d));
+			hash = xfs_da_hashname((char *)dep->name, dep->namelen);
+			for (i = 0; i < INT_GET(btp->count, ARCH_CONVERT); i++) {
+				if (INT_GET(lep[i].address, ARCH_CONVERT) == addr &&
+				    INT_GET(lep[i].hashval, ARCH_CONVERT) == hash)
+					break;
+			}
+			ASSERT(i < INT_GET(btp->count, ARCH_CONVERT));
+		}
+		p += XFS_DIR2_DATA_ENTSIZE(dep->namelen);
+	}
+	/*
+	 * Need to have seen all the entries and all the bestfree slots.
+	 */
+	ASSERT(freeseen == 7);
+	if (INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_BLOCK_MAGIC) {
+		for (i = stale = 0; i < INT_GET(btp->count, ARCH_CONVERT); i++) {
+			if (INT_GET(lep[i].address, ARCH_CONVERT) == XFS_DIR2_NULL_DATAPTR)
+				stale++;
+			if (i > 0)
+				ASSERT(INT_GET(lep[i].hashval, ARCH_CONVERT) >= INT_GET(lep[i - 1].hashval, ARCH_CONVERT));
+		}
+		ASSERT(count == INT_GET(btp->count, ARCH_CONVERT) - INT_GET(btp->stale, ARCH_CONVERT));
+		ASSERT(stale == INT_GET(btp->stale, ARCH_CONVERT));
+	}
+}
+#endif
+
+/*
+ * Given a data block and an unused entry from that block,
+ * return the bestfree entry if any that corresponds to it.
+ */
+xfs_dir2_data_free_t *
+xfs_dir2_data_freefind(
+	xfs_dir2_data_t		*d,		/* data block */
+	xfs_dir2_data_unused_t	*dup)		/* data unused entry */
+{
+	xfs_dir2_data_free_t	*dfp;		/* bestfree entry */
+	xfs_dir2_data_aoff_t	off;		/* offset value needed */
+#if defined(DEBUG) && defined(__KERNEL__)
+	int			matched;	/* matched the value */
+	int			seenzero;	/* saw a 0 bestfree entry */
+#endif
+
+	off = (xfs_dir2_data_aoff_t)((char *)dup - (char *)d);
+#if defined(DEBUG) && defined(__KERNEL__)
+	/*
+	 * Validate some consistency in the bestfree table.
+	 * Check order, non-overlapping entries, and if we find the
+	 * one we're looking for it has to be exact.
+	 */
+	ASSERT(INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_DATA_MAGIC ||
+	       INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_BLOCK_MAGIC);
+	for (dfp = &d->hdr.bestfree[0], seenzero = matched = 0;
+	     dfp < &d->hdr.bestfree[XFS_DIR2_DATA_FD_COUNT];
+	     dfp++) {
+		if (INT_ISZERO(dfp->offset, ARCH_CONVERT)) {
+			ASSERT(INT_ISZERO(dfp->length, ARCH_CONVERT));
+			seenzero = 1;
+			continue;
+		}
+		ASSERT(seenzero == 0);
+		if (INT_GET(dfp->offset, ARCH_CONVERT) == off) {
+			matched = 1;
+			ASSERT(INT_GET(dfp->length, ARCH_CONVERT) == INT_GET(dup->length, ARCH_CONVERT));
+		} else if (off < INT_GET(dfp->offset, ARCH_CONVERT))
+			ASSERT(off + INT_GET(dup->length, ARCH_CONVERT) <= INT_GET(dfp->offset, ARCH_CONVERT));
+		else
+			ASSERT(INT_GET(dfp->offset, ARCH_CONVERT) + INT_GET(dfp->length, ARCH_CONVERT) <= off);
+		ASSERT(matched || INT_GET(dfp->length, ARCH_CONVERT) >= INT_GET(dup->length, ARCH_CONVERT));
+		if (dfp > &d->hdr.bestfree[0])
+			ASSERT(INT_GET(dfp[-1].length, ARCH_CONVERT) >= INT_GET(dfp[0].length, ARCH_CONVERT));
+	}
+#endif
+	/*
+	 * If this is smaller than the smallest bestfree entry,
+	 * it can't be there since they're sorted.
+	 */
+	if (INT_GET(dup->length, ARCH_CONVERT) < INT_GET(d->hdr.bestfree[XFS_DIR2_DATA_FD_COUNT - 1].length, ARCH_CONVERT))
+		return NULL;
+	/*
+	 * Look at the three bestfree entries for our guy.
+	 */
+	for (dfp = &d->hdr.bestfree[0];
+	     dfp < &d->hdr.bestfree[XFS_DIR2_DATA_FD_COUNT];
+	     dfp++) {
+		if (INT_ISZERO(dfp->offset, ARCH_CONVERT))
+			return NULL;
+		if (INT_GET(dfp->offset, ARCH_CONVERT) == off)
+			return dfp;
+	}
+	/*
+	 * Didn't find it.  This only happens if there are duplicate lengths.
+	 */
+	return NULL;
+}
+
+/*
+ * Insert an unused-space entry into the bestfree table.
+ */
+xfs_dir2_data_free_t *				/* entry inserted */
+xfs_dir2_data_freeinsert(
+	xfs_dir2_data_t		*d,		/* data block pointer */
+	xfs_dir2_data_unused_t	*dup,		/* unused space */
+	int			*loghead)	/* log the data header (out) */
+{
+	xfs_dir2_data_free_t	*dfp;		/* bestfree table pointer */
+	xfs_dir2_data_free_t	new;		/* new bestfree entry */
+
+#ifdef __KERNEL__
+	ASSERT(INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_DATA_MAGIC ||
+	       INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_BLOCK_MAGIC);
+#endif
+	dfp = d->hdr.bestfree;
+	INT_COPY(new.length, dup->length, ARCH_CONVERT);
+	INT_SET(new.offset, ARCH_CONVERT, (xfs_dir2_data_off_t)((char *)dup - (char *)d));
+	/*
+	 * Insert at position 0, 1, or 2; or not at all.
+	 */
+	if (INT_GET(new.length, ARCH_CONVERT) > INT_GET(dfp[0].length, ARCH_CONVERT)) {
+		dfp[2] = dfp[1];
+		dfp[1] = dfp[0];
+		dfp[0] = new;
+		*loghead = 1;
+		return &dfp[0];
+	}
+	if (INT_GET(new.length, ARCH_CONVERT) > INT_GET(dfp[1].length, ARCH_CONVERT)) {
+		dfp[2] = dfp[1];
+		dfp[1] = new;
+		*loghead = 1;
+		return &dfp[1];
+	}
+	if (INT_GET(new.length, ARCH_CONVERT) > INT_GET(dfp[2].length, ARCH_CONVERT)) {
+		dfp[2] = new;
+		*loghead = 1;
+		return &dfp[2];
+	}
+	return NULL;
+}
+
+/*
+ * Remove a bestfree entry from the table.
+ */
+void
+xfs_dir2_data_freeremove(
+	xfs_dir2_data_t		*d,		/* data block pointer */
+	xfs_dir2_data_free_t	*dfp,		/* bestfree entry pointer */
+	int			*loghead)	/* out: log data header */
+{
+#ifdef __KERNEL__
+	ASSERT(INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_DATA_MAGIC ||
+	       INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_BLOCK_MAGIC);
+#endif
+	/*
+	 * It's the first entry, slide the next 2 up.
+	 */
+	if (dfp == &d->hdr.bestfree[0]) {
+		d->hdr.bestfree[0] = d->hdr.bestfree[1];
+		d->hdr.bestfree[1] = d->hdr.bestfree[2];
+	}
+	/*
+	 * It's the second entry, slide the 3rd entry up.
+	 */
+	else if (dfp == &d->hdr.bestfree[1])
+		d->hdr.bestfree[1] = d->hdr.bestfree[2];
+	/*
+	 * Must be the last entry.
+	 */
+	else
+		ASSERT(dfp == &d->hdr.bestfree[2]);
+	/*
+	 * Clear the 3rd entry, must be zero now.
+	 */
+	INT_ZERO(d->hdr.bestfree[2].length, ARCH_CONVERT);
+	INT_ZERO(d->hdr.bestfree[2].offset, ARCH_CONVERT);
+	*loghead = 1;
+}
+
+/*
+ * Given a data block, reconstruct its bestfree map.
+ */
+void
+xfs_dir2_data_freescan(
+	xfs_mount_t		*mp,		/* filesystem mount point */
+	xfs_dir2_data_t		*d,		/* data block pointer */
+	int			*loghead,	/* out: log data header */
+	char			*aendp)		/* in: caller's endp */
+{
+	xfs_dir2_block_tail_t	*btp;		/* block tail */
+	xfs_dir2_data_entry_t	*dep;		/* active data entry */
+	xfs_dir2_data_unused_t	*dup;		/* unused data entry */
+	char			*endp;		/* end of block's data */
+	char			*p;		/* current entry pointer */
+
+#ifdef __KERNEL__
+	ASSERT(INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_DATA_MAGIC ||
+	       INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_BLOCK_MAGIC);
+#endif
+	/*
+	 * Start by clearing the table.
+	 */
+	memset(d->hdr.bestfree, 0, sizeof(d->hdr.bestfree));
+	*loghead = 1;
+	/*
+	 * Set up pointers.
+	 */
+	p = (char *)d->u;
+	if (aendp)
+		endp = aendp;
+	else if (INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_BLOCK_MAGIC) {
+		btp = XFS_DIR2_BLOCK_TAIL_P(mp, (xfs_dir2_block_t *)d);
+		endp = (char *)XFS_DIR2_BLOCK_LEAF_P_ARCH(btp, ARCH_CONVERT);
+	} else
+		endp = (char *)d + mp->m_dirblksize;
+	/*
+	 * Loop over the block's entries.
+	 */
+	while (p < endp) {
+		dup = (xfs_dir2_data_unused_t *)p;
+		/*
+		 * If it's a free entry, insert it.
+		 */
+		if (INT_GET(dup->freetag, ARCH_CONVERT) == XFS_DIR2_DATA_FREE_TAG) {
+			ASSERT((char *)dup - (char *)d ==
+			       INT_GET(*XFS_DIR2_DATA_UNUSED_TAG_P_ARCH(dup, ARCH_CONVERT), ARCH_CONVERT));
+			xfs_dir2_data_freeinsert(d, dup, loghead);
+			p += INT_GET(dup->length, ARCH_CONVERT);
+		}
+		/*
+		 * For active entries, check their tags and skip them.
+		 */
+		else {
+			dep = (xfs_dir2_data_entry_t *)p;
+			ASSERT((char *)dep - (char *)d ==
+			       INT_GET(*XFS_DIR2_DATA_ENTRY_TAG_P(dep), ARCH_CONVERT));
+			p += XFS_DIR2_DATA_ENTSIZE(dep->namelen);
+		}
+	}
+}
+
+/*
+ * Initialize a data block at the given block number in the directory.
+ * Give back the buffer for the created block.
+ */
+int						/* error */
+xfs_dir2_data_init(
+	xfs_da_args_t		*args,		/* directory operation args */
+	xfs_dir2_db_t		blkno,		/* logical dir block number */
+	xfs_dabuf_t		**bpp)		/* output block buffer */
+{
+	xfs_dabuf_t		*bp;		/* block buffer */
+	xfs_dir2_data_t		*d;		/* pointer to block */
+	xfs_inode_t		*dp;		/* incore directory inode */
+	xfs_dir2_data_unused_t	*dup;		/* unused entry pointer */
+	int			error;		/* error return value */
+	int			i;		/* bestfree index */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+	xfs_trans_t		*tp;		/* transaction pointer */
+	int                     t;              /* temp */
+
+	dp = args->dp;
+	mp = dp->i_mount;
+	tp = args->trans;
+	/*
+	 * Get the buffer set up for the block.
+	 */
+	error = xfs_da_get_buf(tp, dp, XFS_DIR2_DB_TO_DA(mp, blkno), -1, &bp,
+		XFS_DATA_FORK);
+	if (error) {
+		return error;
+	}
+	ASSERT(bp != NULL);
+	/*
+	 * Initialize the header.
+	 */
+	d = bp->data;
+	INT_SET(d->hdr.magic, ARCH_CONVERT, XFS_DIR2_DATA_MAGIC);
+	INT_SET(d->hdr.bestfree[0].offset, ARCH_CONVERT, (xfs_dir2_data_off_t)sizeof(d->hdr));
+	for (i = 1; i < XFS_DIR2_DATA_FD_COUNT; i++) {
+		INT_ZERO(d->hdr.bestfree[i].length, ARCH_CONVERT);
+		INT_ZERO(d->hdr.bestfree[i].offset, ARCH_CONVERT);
+	}
+	/*
+	 * Set up an unused entry for the block's body.
+	 */
+	dup = &d->u[0].unused;
+	INT_SET(dup->freetag, ARCH_CONVERT, XFS_DIR2_DATA_FREE_TAG);
+
+	t=mp->m_dirblksize - (uint)sizeof(d->hdr);
+	INT_SET(d->hdr.bestfree[0].length, ARCH_CONVERT, t);
+	INT_SET(dup->length, ARCH_CONVERT, t);
+	INT_SET(*XFS_DIR2_DATA_UNUSED_TAG_P_ARCH(dup, ARCH_CONVERT), ARCH_CONVERT,
+		(xfs_dir2_data_off_t)((char *)dup - (char *)d));
+	/*
+	 * Log it and return it.
+	 */
+	xfs_dir2_data_log_header(tp, bp);
+	xfs_dir2_data_log_unused(tp, bp, dup);
+	*bpp = bp;
+	return 0;
+}
+
+/*
+ * Log an active data entry from the block.
+ */
+void
+xfs_dir2_data_log_entry(
+	xfs_trans_t		*tp,		/* transaction pointer */
+	xfs_dabuf_t		*bp,		/* block buffer */
+	xfs_dir2_data_entry_t	*dep)		/* data entry pointer */
+{
+	xfs_dir2_data_t		*d;		/* data block pointer */
+
+	d = bp->data;
+	ASSERT(INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_DATA_MAGIC ||
+	       INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_BLOCK_MAGIC);
+	xfs_da_log_buf(tp, bp, (uint)((char *)dep - (char *)d),
+		(uint)((char *)(XFS_DIR2_DATA_ENTRY_TAG_P(dep) + 1) -
+		       (char *)d - 1));
+}
+
+/*
+ * Log a data block header.
+ */
+void
+xfs_dir2_data_log_header(
+	xfs_trans_t		*tp,		/* transaction pointer */
+	xfs_dabuf_t		*bp)		/* block buffer */
+{
+	xfs_dir2_data_t		*d;		/* data block pointer */
+
+	d = bp->data;
+	ASSERT(INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_DATA_MAGIC ||
+	       INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_BLOCK_MAGIC);
+	xfs_da_log_buf(tp, bp, (uint)((char *)&d->hdr - (char *)d),
+		(uint)(sizeof(d->hdr) - 1));
+}
+
+/*
+ * Log a data unused entry.
+ */
+void
+xfs_dir2_data_log_unused(
+	xfs_trans_t		*tp,		/* transaction pointer */
+	xfs_dabuf_t		*bp,		/* block buffer */
+	xfs_dir2_data_unused_t	*dup)		/* data unused pointer */
+{
+	xfs_dir2_data_t		*d;		/* data block pointer */
+
+	d = bp->data;
+	ASSERT(INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_DATA_MAGIC ||
+	       INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_BLOCK_MAGIC);
+	/*
+	 * Log the first part of the unused entry.
+	 */
+	xfs_da_log_buf(tp, bp, (uint)((char *)dup - (char *)d),
+		(uint)((char *)&dup->length + sizeof(dup->length) -
+		       1 - (char *)d));
+	/*
+	 * Log the end (tag) of the unused entry.
+	 */
+	xfs_da_log_buf(tp, bp,
+		(uint)((char *)XFS_DIR2_DATA_UNUSED_TAG_P_ARCH(dup, ARCH_CONVERT) - (char *)d),
+		(uint)((char *)XFS_DIR2_DATA_UNUSED_TAG_P_ARCH(dup, ARCH_CONVERT) - (char *)d +
+		       sizeof(xfs_dir2_data_off_t) - 1));
+}
+
+/*
+ * Make a byte range in the data block unused.
+ * Its current contents are unimportant.
+ */
+void
+xfs_dir2_data_make_free(
+	xfs_trans_t		*tp,		/* transaction pointer */
+	xfs_dabuf_t		*bp,		/* block buffer */
+	xfs_dir2_data_aoff_t	offset,		/* starting byte offset */
+	xfs_dir2_data_aoff_t	len,		/* length in bytes */
+	int			*needlogp,	/* out: log header */
+	int			*needscanp)	/* out: regen bestfree */
+{
+	xfs_dir2_data_t		*d;		/* data block pointer */
+	xfs_dir2_data_free_t	*dfp;		/* bestfree pointer */
+	char			*endptr;	/* end of data area */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+	int			needscan;	/* need to regen bestfree */
+	xfs_dir2_data_unused_t	*newdup;	/* new unused entry */
+	xfs_dir2_data_unused_t	*postdup;	/* unused entry after us */
+	xfs_dir2_data_unused_t	*prevdup;	/* unused entry before us */
+
+	mp = tp->t_mountp;
+	d = bp->data;
+	/*
+	 * Figure out where the end of the data area is.
+	 */
+	if (INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_DATA_MAGIC)
+		endptr = (char *)d + mp->m_dirblksize;
+	else {
+		xfs_dir2_block_tail_t	*btp;	/* block tail */
+
+		ASSERT(INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_BLOCK_MAGIC);
+		btp = XFS_DIR2_BLOCK_TAIL_P(mp, (xfs_dir2_block_t *)d);
+		endptr = (char *)XFS_DIR2_BLOCK_LEAF_P_ARCH(btp, ARCH_CONVERT);
+	}
+	/*
+	 * If this isn't the start of the block, then back up to
+	 * the previous entry and see if it's free.
+	 */
+	if (offset > sizeof(d->hdr)) {
+		xfs_dir2_data_off_t	*tagp;	/* tag just before us */
+
+		tagp = (xfs_dir2_data_off_t *)((char *)d + offset) - 1;
+		prevdup = (xfs_dir2_data_unused_t *)((char *)d + INT_GET(*tagp, ARCH_CONVERT));
+		if (INT_GET(prevdup->freetag, ARCH_CONVERT) != XFS_DIR2_DATA_FREE_TAG)
+			prevdup = NULL;
+	} else
+		prevdup = NULL;
+	/*
+	 * If this isn't the end of the block, see if the entry after
+	 * us is free.
+	 */
+	if ((char *)d + offset + len < endptr) {
+		postdup =
+			(xfs_dir2_data_unused_t *)((char *)d + offset + len);
+		if (INT_GET(postdup->freetag, ARCH_CONVERT) != XFS_DIR2_DATA_FREE_TAG)
+			postdup = NULL;
+	} else
+		postdup = NULL;
+	ASSERT(*needscanp == 0);
+	needscan = 0;
+	/*
+	 * Previous and following entries are both free,
+	 * merge everything into a single free entry.
+	 */
+	if (prevdup && postdup) {
+		xfs_dir2_data_free_t	*dfp2;	/* another bestfree pointer */
+
+		/*
+		 * See if prevdup and/or postdup are in bestfree table.
+		 */
+		dfp = xfs_dir2_data_freefind(d, prevdup);
+		dfp2 = xfs_dir2_data_freefind(d, postdup);
+		/*
+		 * We need a rescan unless there are exactly 2 free entries
+		 * namely our two.  Then we know what's happening, otherwise
+		 * since the third bestfree is there, there might be more
+		 * entries.
+		 */
+		needscan = !INT_ISZERO(d->hdr.bestfree[2].length, ARCH_CONVERT);
+		/*
+		 * Fix up the new big freespace.
+		 */
+		INT_MOD(prevdup->length, ARCH_CONVERT, len + INT_GET(postdup->length, ARCH_CONVERT));
+		INT_SET(*XFS_DIR2_DATA_UNUSED_TAG_P_ARCH(prevdup, ARCH_CONVERT), ARCH_CONVERT,
+			(xfs_dir2_data_off_t)((char *)prevdup - (char *)d));
+		xfs_dir2_data_log_unused(tp, bp, prevdup);
+		if (!needscan) {
+			/*
+			 * Has to be the case that entries 0 and 1 are
+			 * dfp and dfp2 (don't know which is which), and
+			 * entry 2 is empty.
+			 * Remove entry 1 first then entry 0.
+			 */
+			ASSERT(dfp && dfp2);
+			if (dfp == &d->hdr.bestfree[1]) {
+				dfp = &d->hdr.bestfree[0];
+				ASSERT(dfp2 == dfp);
+				dfp2 = &d->hdr.bestfree[1];
+			}
+			xfs_dir2_data_freeremove(d, dfp2, needlogp);
+			xfs_dir2_data_freeremove(d, dfp, needlogp);
+			/*
+			 * Now insert the new entry.
+			 */
+			dfp = xfs_dir2_data_freeinsert(d, prevdup, needlogp);
+			ASSERT(dfp == &d->hdr.bestfree[0]);
+			ASSERT(INT_GET(dfp->length, ARCH_CONVERT) == INT_GET(prevdup->length, ARCH_CONVERT));
+			ASSERT(INT_ISZERO(dfp[1].length, ARCH_CONVERT));
+			ASSERT(INT_ISZERO(dfp[2].length, ARCH_CONVERT));
+		}
+	}
+	/*
+	 * The entry before us is free, merge with it.
+	 */
+	else if (prevdup) {
+		dfp = xfs_dir2_data_freefind(d, prevdup);
+		INT_MOD(prevdup->length, ARCH_CONVERT, len);
+		INT_SET(*XFS_DIR2_DATA_UNUSED_TAG_P_ARCH(prevdup, ARCH_CONVERT), ARCH_CONVERT,
+			(xfs_dir2_data_off_t)((char *)prevdup - (char *)d));
+		xfs_dir2_data_log_unused(tp, bp, prevdup);
+		/*
+		 * If the previous entry was in the table, the new entry
+		 * is longer, so it will be in the table too.  Remove
+		 * the old one and add the new one.
+		 */
+		if (dfp) {
+			xfs_dir2_data_freeremove(d, dfp, needlogp);
+			(void)xfs_dir2_data_freeinsert(d, prevdup, needlogp);
+		}
+		/*
+		 * Otherwise we need a scan if the new entry is big enough.
+		 */
+		else
+			needscan = INT_GET(prevdup->length, ARCH_CONVERT) > INT_GET(d->hdr.bestfree[2].length, ARCH_CONVERT);
+	}
+	/*
+	 * The following entry is free, merge with it.
+	 */
+	else if (postdup) {
+		dfp = xfs_dir2_data_freefind(d, postdup);
+		newdup = (xfs_dir2_data_unused_t *)((char *)d + offset);
+		INT_SET(newdup->freetag, ARCH_CONVERT, XFS_DIR2_DATA_FREE_TAG);
+		INT_SET(newdup->length, ARCH_CONVERT, len + INT_GET(postdup->length, ARCH_CONVERT));
+		INT_SET(*XFS_DIR2_DATA_UNUSED_TAG_P_ARCH(newdup, ARCH_CONVERT), ARCH_CONVERT,
+			(xfs_dir2_data_off_t)((char *)newdup - (char *)d));
+		xfs_dir2_data_log_unused(tp, bp, newdup);
+		/*
+		 * If the following entry was in the table, the new entry
+		 * is longer, so it will be in the table too.  Remove
+		 * the old one and add the new one.
+		 */
+		if (dfp) {
+			xfs_dir2_data_freeremove(d, dfp, needlogp);
+			(void)xfs_dir2_data_freeinsert(d, newdup, needlogp);
+		}
+		/*
+		 * Otherwise we need a scan if the new entry is big enough.
+		 */
+		else
+			needscan = INT_GET(newdup->length, ARCH_CONVERT) > INT_GET(d->hdr.bestfree[2].length, ARCH_CONVERT);
+	}
+	/*
+	 * Neither neighbor is free.  Make a new entry.
+	 */
+	else {
+		newdup = (xfs_dir2_data_unused_t *)((char *)d + offset);
+		INT_SET(newdup->freetag, ARCH_CONVERT, XFS_DIR2_DATA_FREE_TAG);
+		INT_SET(newdup->length, ARCH_CONVERT, len);
+		INT_SET(*XFS_DIR2_DATA_UNUSED_TAG_P_ARCH(newdup, ARCH_CONVERT), ARCH_CONVERT,
+			(xfs_dir2_data_off_t)((char *)newdup - (char *)d));
+		xfs_dir2_data_log_unused(tp, bp, newdup);
+		(void)xfs_dir2_data_freeinsert(d, newdup, needlogp);
+	}
+	*needscanp = needscan;
+}
+
+/*
+ * Take a byte range out of an existing unused space and make it un-free.
+ */
+void
+xfs_dir2_data_use_free(
+	xfs_trans_t		*tp,		/* transaction pointer */
+	xfs_dabuf_t		*bp,		/* data block buffer */
+	xfs_dir2_data_unused_t	*dup,		/* unused entry */
+	xfs_dir2_data_aoff_t	offset,		/* starting offset to use */
+	xfs_dir2_data_aoff_t	len,		/* length to use */
+	int			*needlogp,	/* out: need to log header */
+	int			*needscanp)	/* out: need regen bestfree */
+{
+	xfs_dir2_data_t		*d;		/* data block */
+	xfs_dir2_data_free_t	*dfp;		/* bestfree pointer */
+	int			matchback;	/* matches end of freespace */
+	int			matchfront;	/* matches start of freespace */
+	int			needscan;	/* need to regen bestfree */
+	xfs_dir2_data_unused_t	*newdup;	/* new unused entry */
+	xfs_dir2_data_unused_t	*newdup2;	/* another new unused entry */
+	int			oldlen;		/* old unused entry's length */
+
+	d = bp->data;
+	ASSERT(INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_DATA_MAGIC ||
+	       INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_BLOCK_MAGIC);
+	ASSERT(INT_GET(dup->freetag, ARCH_CONVERT) == XFS_DIR2_DATA_FREE_TAG);
+	ASSERT(offset >= (char *)dup - (char *)d);
+	ASSERT(offset + len <= (char *)dup + INT_GET(dup->length, ARCH_CONVERT) - (char *)d);
+	ASSERT((char *)dup - (char *)d == INT_GET(*XFS_DIR2_DATA_UNUSED_TAG_P_ARCH(dup, ARCH_CONVERT), ARCH_CONVERT));
+	/*
+	 * Look up the entry in the bestfree table.
+	 */
+	dfp = xfs_dir2_data_freefind(d, dup);
+	oldlen = INT_GET(dup->length, ARCH_CONVERT);
+	ASSERT(dfp || oldlen <= INT_GET(d->hdr.bestfree[2].length, ARCH_CONVERT));
+	/*
+	 * Check for alignment with front and back of the entry.
+	 */
+	matchfront = (char *)dup - (char *)d == offset;
+	matchback = (char *)dup + oldlen - (char *)d == offset + len;
+	ASSERT(*needscanp == 0);
+	needscan = 0;
+	/*
+	 * If we matched it exactly we just need to get rid of it from
+	 * the bestfree table.
+	 */
+	if (matchfront && matchback) {
+		if (dfp) {
+			needscan = !INT_ISZERO(d->hdr.bestfree[2].offset, ARCH_CONVERT);
+			if (!needscan)
+				xfs_dir2_data_freeremove(d, dfp, needlogp);
+		}
+	}
+	/*
+	 * We match the first part of the entry.
+	 * Make a new entry with the remaining freespace.
+	 */
+	else if (matchfront) {
+		newdup = (xfs_dir2_data_unused_t *)((char *)d + offset + len);
+		INT_SET(newdup->freetag, ARCH_CONVERT, XFS_DIR2_DATA_FREE_TAG);
+		INT_SET(newdup->length, ARCH_CONVERT, oldlen - len);
+		INT_SET(*XFS_DIR2_DATA_UNUSED_TAG_P_ARCH(newdup, ARCH_CONVERT), ARCH_CONVERT,
+			(xfs_dir2_data_off_t)((char *)newdup - (char *)d));
+		xfs_dir2_data_log_unused(tp, bp, newdup);
+		/*
+		 * If it was in the table, remove it and add the new one.
+		 */
+		if (dfp) {
+			xfs_dir2_data_freeremove(d, dfp, needlogp);
+			dfp = xfs_dir2_data_freeinsert(d, newdup, needlogp);
+			ASSERT(dfp != NULL);
+			ASSERT(INT_GET(dfp->length, ARCH_CONVERT) == INT_GET(newdup->length, ARCH_CONVERT));
+			ASSERT(INT_GET(dfp->offset, ARCH_CONVERT) == (char *)newdup - (char *)d);
+			/*
+			 * If we got inserted at the last slot,
+			 * that means we don't know if there was a better
+			 * choice for the last slot, or not.  Rescan.
+			 */
+			needscan = dfp == &d->hdr.bestfree[2];
+		}
+	}
+	/*
+	 * We match the last part of the entry.
+	 * Trim the allocated space off the tail of the entry.
+	 */
+	else if (matchback) {
+		newdup = dup;
+		INT_SET(newdup->length, ARCH_CONVERT, (xfs_dir2_data_off_t)
+			(((char *)d + offset) - (char *)newdup));
+		INT_SET(*XFS_DIR2_DATA_UNUSED_TAG_P_ARCH(newdup, ARCH_CONVERT), ARCH_CONVERT,
+			(xfs_dir2_data_off_t)((char *)newdup - (char *)d));
+		xfs_dir2_data_log_unused(tp, bp, newdup);
+		/*
+		 * If it was in the table, remove it and add the new one.
+		 */
+		if (dfp) {
+			xfs_dir2_data_freeremove(d, dfp, needlogp);
+			dfp = xfs_dir2_data_freeinsert(d, newdup, needlogp);
+			ASSERT(dfp != NULL);
+			ASSERT(INT_GET(dfp->length, ARCH_CONVERT) == INT_GET(newdup->length, ARCH_CONVERT));
+			ASSERT(INT_GET(dfp->offset, ARCH_CONVERT) == (char *)newdup - (char *)d);
+			/*
+			 * If we got inserted at the last slot,
+			 * that means we don't know if there was a better
+			 * choice for the last slot, or not.  Rescan.
+			 */
+			needscan = dfp == &d->hdr.bestfree[2];
+		}
+	}
+	/*
+	 * Poking out the middle of an entry.
+	 * Make two new entries.
+	 */
+	else {
+		newdup = dup;
+		INT_SET(newdup->length, ARCH_CONVERT, (xfs_dir2_data_off_t)
+			(((char *)d + offset) - (char *)newdup));
+		INT_SET(*XFS_DIR2_DATA_UNUSED_TAG_P_ARCH(newdup, ARCH_CONVERT), ARCH_CONVERT,
+			(xfs_dir2_data_off_t)((char *)newdup - (char *)d));
+		xfs_dir2_data_log_unused(tp, bp, newdup);
+		newdup2 = (xfs_dir2_data_unused_t *)((char *)d + offset + len);
+		INT_SET(newdup2->freetag, ARCH_CONVERT, XFS_DIR2_DATA_FREE_TAG);
+		INT_SET(newdup2->length, ARCH_CONVERT, oldlen - len - INT_GET(newdup->length, ARCH_CONVERT));
+		INT_SET(*XFS_DIR2_DATA_UNUSED_TAG_P_ARCH(newdup2, ARCH_CONVERT), ARCH_CONVERT,
+			(xfs_dir2_data_off_t)((char *)newdup2 - (char *)d));
+		xfs_dir2_data_log_unused(tp, bp, newdup2);
+		/*
+		 * If the old entry was in the table, we need to scan
+		 * if the 3rd entry was valid, since these entries
+		 * are smaller than the old one.
+		 * If we don't need to scan that means there were 1 or 2
+		 * entries in the table, and removing the old and adding
+		 * the 2 new will work.
+		 */
+		if (dfp) {
+			needscan = !INT_ISZERO(d->hdr.bestfree[2].length, ARCH_CONVERT);
+			if (!needscan) {
+				xfs_dir2_data_freeremove(d, dfp, needlogp);
+				(void)xfs_dir2_data_freeinsert(d, newdup,
+					needlogp);
+				(void)xfs_dir2_data_freeinsert(d, newdup2,
+					needlogp);
+			}
+		}
+	}
+	*needscanp = needscan;
+}
diff --git a/fs/xfs/xfs_dir2_data.h b/fs/xfs/xfs_dir2_data.h
new file mode 100644
index 00000000000000..b9e16ab5f6223b
--- /dev/null
+++ b/fs/xfs/xfs_dir2_data.h
@@ -0,0 +1,232 @@
+/*
+ * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_DIR2_DATA_H__
+#define	__XFS_DIR2_DATA_H__
+
+/*
+ * Directory format 2, data block structures.
+ */
+
+struct xfs_dabuf;
+struct xfs_da_args;
+struct xfs_inode;
+struct xfs_trans;
+
+/*
+ * Constants.
+ */
+#define	XFS_DIR2_DATA_MAGIC	0x58443244	/* XD2D: for multiblock dirs */
+#define	XFS_DIR2_DATA_ALIGN_LOG	3		/* i.e., 8 bytes */
+#define	XFS_DIR2_DATA_ALIGN	(1 << XFS_DIR2_DATA_ALIGN_LOG)
+#define	XFS_DIR2_DATA_FREE_TAG	0xffff
+#define	XFS_DIR2_DATA_FD_COUNT	3
+
+/*
+ * Directory address space divided into sections,
+ * spaces separated by 32gb.
+ */
+#define	XFS_DIR2_SPACE_SIZE	(1ULL << (32 + XFS_DIR2_DATA_ALIGN_LOG))
+#define	XFS_DIR2_DATA_SPACE	0
+#define	XFS_DIR2_DATA_OFFSET	(XFS_DIR2_DATA_SPACE * XFS_DIR2_SPACE_SIZE)
+#define	XFS_DIR2_DATA_FIRSTDB(mp)	\
+	XFS_DIR2_BYTE_TO_DB(mp, XFS_DIR2_DATA_OFFSET)
+
+/*
+ * Offsets of . and .. in data space (always block 0)
+ */
+#define	XFS_DIR2_DATA_DOT_OFFSET	\
+	((xfs_dir2_data_aoff_t)sizeof(xfs_dir2_data_hdr_t))
+#define	XFS_DIR2_DATA_DOTDOT_OFFSET	\
+	(XFS_DIR2_DATA_DOT_OFFSET + XFS_DIR2_DATA_ENTSIZE(1))
+#define	XFS_DIR2_DATA_FIRST_OFFSET		\
+	(XFS_DIR2_DATA_DOTDOT_OFFSET + XFS_DIR2_DATA_ENTSIZE(2))
+
+/*
+ * Structures.
+ */
+
+/*
+ * Describe a free area in the data block.
+ * The freespace will be formatted as a xfs_dir2_data_unused_t.
+ */
+typedef struct xfs_dir2_data_free {
+	xfs_dir2_data_off_t	offset;		/* start of freespace */
+	xfs_dir2_data_off_t	length;		/* length of freespace */
+} xfs_dir2_data_free_t;
+
+/*
+ * Header for the data blocks.
+ * Always at the beginning of a directory-sized block.
+ * The code knows that XFS_DIR2_DATA_FD_COUNT is 3.
+ */
+typedef struct xfs_dir2_data_hdr {
+	__uint32_t		magic;		/* XFS_DIR2_DATA_MAGIC */
+						/* or XFS_DIR2_BLOCK_MAGIC */
+	xfs_dir2_data_free_t	bestfree[XFS_DIR2_DATA_FD_COUNT];
+} xfs_dir2_data_hdr_t;
+
+/*
+ * Active entry in a data block.  Aligned to 8 bytes.
+ * Tag appears as the last 2 bytes.
+ */
+typedef struct xfs_dir2_data_entry {
+	xfs_ino_t		inumber;	/* inode number */
+	__uint8_t		namelen;	/* name length */
+	__uint8_t		name[1];	/* name bytes, no null */
+						/* variable offset */
+	xfs_dir2_data_off_t	tag;		/* starting offset of us */
+} xfs_dir2_data_entry_t;
+
+/*
+ * Unused entry in a data block.  Aligned to 8 bytes.
+ * Tag appears as the last 2 bytes.
+ */
+typedef struct xfs_dir2_data_unused {
+	__uint16_t		freetag;	/* XFS_DIR2_DATA_FREE_TAG */
+	xfs_dir2_data_off_t	length;		/* total free length */
+						/* variable offset */
+	xfs_dir2_data_off_t	tag;		/* starting offset of us */
+} xfs_dir2_data_unused_t;
+
+typedef union {
+	xfs_dir2_data_entry_t	entry;
+	xfs_dir2_data_unused_t	unused;
+} xfs_dir2_data_union_t;
+
+/*
+ * Generic data block structure, for xfs_db.
+ */
+typedef struct xfs_dir2_data {
+	xfs_dir2_data_hdr_t	hdr;		/* magic XFS_DIR2_DATA_MAGIC */
+	xfs_dir2_data_union_t	u[1];
+} xfs_dir2_data_t;
+
+/*
+ * Macros.
+ */
+
+/*
+ * Size of a data entry.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_DATA_ENTSIZE)
+int xfs_dir2_data_entsize(int n);
+#define XFS_DIR2_DATA_ENTSIZE(n)	xfs_dir2_data_entsize(n)
+#else
+#define	XFS_DIR2_DATA_ENTSIZE(n)	\
+	((int)(roundup(offsetof(xfs_dir2_data_entry_t, name[0]) + (n) + \
+		 (uint)sizeof(xfs_dir2_data_off_t), XFS_DIR2_DATA_ALIGN)))
+#endif
+
+/*
+ * Pointer to an entry's tag word.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_DATA_ENTRY_TAG_P)
+xfs_dir2_data_off_t *xfs_dir2_data_entry_tag_p(xfs_dir2_data_entry_t *dep);
+#define	XFS_DIR2_DATA_ENTRY_TAG_P(dep)	xfs_dir2_data_entry_tag_p(dep)
+#else
+#define	XFS_DIR2_DATA_ENTRY_TAG_P(dep)	\
+	((xfs_dir2_data_off_t *)\
+	 ((char *)(dep) + XFS_DIR2_DATA_ENTSIZE((dep)->namelen) - \
+	  (uint)sizeof(xfs_dir2_data_off_t)))
+#endif
+
+/*
+ * Pointer to a freespace's tag word.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_DATA_UNUSED_TAG_P)
+xfs_dir2_data_off_t *xfs_dir2_data_unused_tag_p_arch(
+	xfs_dir2_data_unused_t *dup, xfs_arch_t arch);
+#define	XFS_DIR2_DATA_UNUSED_TAG_P_ARCH(dup,arch) \
+	xfs_dir2_data_unused_tag_p_arch(dup,arch)
+#else
+#define	XFS_DIR2_DATA_UNUSED_TAG_P_ARCH(dup,arch)	\
+	((xfs_dir2_data_off_t *)\
+	 ((char *)(dup) + INT_GET((dup)->length, arch) \
+			- (uint)sizeof(xfs_dir2_data_off_t)))
+#endif
+
+/*
+ * Function declarations.
+ */
+
+#ifdef DEBUG
+extern void
+	xfs_dir2_data_check(struct xfs_inode *dp, struct xfs_dabuf *bp);
+#else
+#define	xfs_dir2_data_check(dp,bp)
+#endif
+
+extern xfs_dir2_data_free_t *
+	xfs_dir2_data_freefind(xfs_dir2_data_t *d,
+			       xfs_dir2_data_unused_t *dup);
+
+extern xfs_dir2_data_free_t *
+	xfs_dir2_data_freeinsert(xfs_dir2_data_t *d,
+				 xfs_dir2_data_unused_t *dup, int *loghead);
+
+extern void
+	xfs_dir2_data_freeremove(xfs_dir2_data_t *d,
+				 xfs_dir2_data_free_t *dfp, int *loghead);
+
+extern void
+	xfs_dir2_data_freescan(struct xfs_mount *mp, xfs_dir2_data_t *d,
+			       int *loghead, char *aendp);
+
+extern int
+	xfs_dir2_data_init(struct xfs_da_args *args, xfs_dir2_db_t blkno,
+			   struct xfs_dabuf **bpp);
+
+extern void
+	xfs_dir2_data_log_entry(struct xfs_trans *tp, struct xfs_dabuf *bp,
+				xfs_dir2_data_entry_t *dep);
+
+extern void
+	xfs_dir2_data_log_header(struct xfs_trans *tp, struct xfs_dabuf *bp);
+
+extern void
+	xfs_dir2_data_log_unused(struct xfs_trans *tp, struct xfs_dabuf *bp,
+				 xfs_dir2_data_unused_t *dup);
+
+extern void
+	xfs_dir2_data_make_free(struct xfs_trans *tp, struct xfs_dabuf *bp,
+				xfs_dir2_data_aoff_t offset,
+				xfs_dir2_data_aoff_t len, int *needlogp,
+				int *needscanp);
+
+extern void
+	xfs_dir2_data_use_free(struct xfs_trans *tp, struct xfs_dabuf *bp,
+			       xfs_dir2_data_unused_t *dup,
+			       xfs_dir2_data_aoff_t offset,
+			       xfs_dir2_data_aoff_t len, int *needlogp,
+			       int *needscanp);
+
+#endif	/* __XFS_DIR2_DATA_H__ */
diff --git a/fs/xfs/xfs_dir2_leaf.c b/fs/xfs/xfs_dir2_leaf.c
new file mode 100644
index 00000000000000..c75d54f3fda7c7
--- /dev/null
+++ b/fs/xfs/xfs_dir2_leaf.c
@@ -0,0 +1,1896 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+/*
+ * xfs_dir2_leaf.c
+ * XFS directory version 2 implementation - single leaf form
+ * see xfs_dir2_leaf.h for data structures.
+ * These directories have multiple XFS_DIR2_DATA blocks and one
+ * XFS_DIR2_LEAF1 block containing the hash table and freespace map.
+ */
+
+#include "xfs.h"
+
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_da_btree.h"
+#include "xfs_dir2_data.h"
+#include "xfs_dir2_leaf.h"
+#include "xfs_dir2_block.h"
+#include "xfs_dir2_node.h"
+#include "xfs_dir2_trace.h"
+#include "xfs_error.h"
+#include "xfs_bit.h"
+
+/*
+ * Local function declarations.
+ */
+#ifdef DEBUG
+static void xfs_dir2_leaf_check(xfs_inode_t *dp, xfs_dabuf_t *bp);
+#else
+#define	xfs_dir2_leaf_check(dp, bp)
+#endif
+static int xfs_dir2_leaf_lookup_int(xfs_da_args_t *args, xfs_dabuf_t **lbpp,
+				    int *indexp, xfs_dabuf_t **dbpp);
+
+/*
+ * Convert a block form directory to a leaf form directory.
+ */
+int						/* error */
+xfs_dir2_block_to_leaf(
+	xfs_da_args_t		*args,		/* operation arguments */
+	xfs_dabuf_t		*dbp)		/* input block's buffer */
+{
+	xfs_dir2_data_off_t	*bestsp;	/* leaf's bestsp entries */
+	xfs_dablk_t		blkno;		/* leaf block's bno */
+	xfs_dir2_block_t	*block;		/* block structure */
+	xfs_dir2_leaf_entry_t	*blp;		/* block's leaf entries */
+	xfs_dir2_block_tail_t	*btp;		/* block's tail */
+	xfs_inode_t		*dp;		/* incore directory inode */
+	int			error;		/* error return code */
+	xfs_dabuf_t		*lbp;		/* leaf block's buffer */
+	xfs_dir2_db_t		ldb;		/* leaf block's bno */
+	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
+	xfs_dir2_leaf_tail_t	*ltp;		/* leaf's tail */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+	int			needlog;	/* need to log block header */
+	int			needscan;	/* need to rescan bestfree */
+	xfs_trans_t		*tp;		/* transaction pointer */
+
+	xfs_dir2_trace_args_b("block_to_leaf", args, dbp);
+	dp = args->dp;
+	mp = dp->i_mount;
+	tp = args->trans;
+	/*
+	 * Add the leaf block to the inode.
+	 * This interface will only put blocks in the leaf/node range.
+	 * Since that's empty now, we'll get the root (block 0 in range).
+	 */
+	if ((error = xfs_da_grow_inode(args, &blkno))) {
+		return error;
+	}
+	ldb = XFS_DIR2_DA_TO_DB(mp, blkno);
+	ASSERT(ldb == XFS_DIR2_LEAF_FIRSTDB(mp));
+	/*
+	 * Initialize the leaf block, get a buffer for it.
+	 */
+	if ((error = xfs_dir2_leaf_init(args, ldb, &lbp, XFS_DIR2_LEAF1_MAGIC))) {
+		return error;
+	}
+	ASSERT(lbp != NULL);
+	leaf = lbp->data;
+	block = dbp->data;
+	xfs_dir2_data_check(dp, dbp);
+	btp = XFS_DIR2_BLOCK_TAIL_P(mp, block);
+	blp = XFS_DIR2_BLOCK_LEAF_P_ARCH(btp, ARCH_CONVERT);
+	/*
+	 * Set the counts in the leaf header.
+	 */
+	INT_COPY(leaf->hdr.count, btp->count, ARCH_CONVERT); /* INT_: type change */
+	INT_COPY(leaf->hdr.stale, btp->stale, ARCH_CONVERT); /* INT_: type change */
+	/*
+	 * Could compact these but I think we always do the conversion
+	 * after squeezing out stale entries.
+	 */
+	memcpy(leaf->ents, blp, INT_GET(btp->count, ARCH_CONVERT) * sizeof(xfs_dir2_leaf_entry_t));
+	xfs_dir2_leaf_log_ents(tp, lbp, 0, INT_GET(leaf->hdr.count, ARCH_CONVERT) - 1);
+	needscan = 0;
+	needlog = 1;
+	/*
+	 * Make the space formerly occupied by the leaf entries and block
+	 * tail be free.
+	 */
+	xfs_dir2_data_make_free(tp, dbp,
+		(xfs_dir2_data_aoff_t)((char *)blp - (char *)block),
+		(xfs_dir2_data_aoff_t)((char *)block + mp->m_dirblksize -
+				       (char *)blp),
+		&needlog, &needscan);
+	/*
+	 * Fix up the block header, make it a data block.
+	 */
+	INT_SET(block->hdr.magic, ARCH_CONVERT, XFS_DIR2_DATA_MAGIC);
+	if (needscan)
+		xfs_dir2_data_freescan(mp, (xfs_dir2_data_t *)block, &needlog,
+			NULL);
+	/*
+	 * Set up leaf tail and bests table.
+	 */
+	ltp = XFS_DIR2_LEAF_TAIL_P(mp, leaf);
+	INT_SET(ltp->bestcount, ARCH_CONVERT, 1);
+	bestsp = XFS_DIR2_LEAF_BESTS_P_ARCH(ltp, ARCH_CONVERT);
+	INT_COPY(bestsp[0], block->hdr.bestfree[0].length, ARCH_CONVERT);
+	/*
+	 * Log the data header and leaf bests table.
+	 */
+	if (needlog)
+		xfs_dir2_data_log_header(tp, dbp);
+	xfs_dir2_leaf_check(dp, lbp);
+	xfs_dir2_data_check(dp, dbp);
+	xfs_dir2_leaf_log_bests(tp, lbp, 0, 0);
+	xfs_da_buf_done(lbp);
+	return 0;
+}
+
+/*
+ * Add an entry to a leaf form directory.
+ */
+int						/* error */
+xfs_dir2_leaf_addname(
+	xfs_da_args_t		*args)		/* operation arguments */
+{
+	xfs_dir2_data_off_t	*bestsp;	/* freespace table in leaf */
+	int			compact;	/* need to compact leaves */
+	xfs_dir2_data_t		*data;		/* data block structure */
+	xfs_dabuf_t		*dbp;		/* data block buffer */
+	xfs_dir2_data_entry_t	*dep;		/* data block entry */
+	xfs_inode_t		*dp;		/* incore directory inode */
+	xfs_dir2_data_unused_t	*dup;		/* data unused entry */
+	int			error;		/* error return value */
+	int			grown;		/* allocated new data block */
+	int			highstale;	/* index of next stale leaf */
+	int			i;		/* temporary, index */
+	int			index;		/* leaf table position */
+	xfs_dabuf_t		*lbp;		/* leaf's buffer */
+	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
+	int			length;		/* length of new entry */
+	xfs_dir2_leaf_entry_t	*lep;		/* leaf entry table pointer */
+	int			lfloglow;	/* low leaf logging index */
+	int			lfloghigh;	/* high leaf logging index */
+	int			lowstale;	/* index of prev stale leaf */
+	xfs_dir2_leaf_tail_t	*ltp;		/* leaf tail pointer */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+	int			needbytes;	/* leaf block bytes needed */
+	int			needlog;	/* need to log data header */
+	int			needscan;	/* need to rescan data free */
+	xfs_dir2_data_off_t	*tagp;		/* end of data entry */
+	xfs_trans_t		*tp;		/* transaction pointer */
+	xfs_dir2_db_t		use_block;	/* data block number */
+
+	xfs_dir2_trace_args("leaf_addname", args);
+	dp = args->dp;
+	tp = args->trans;
+	mp = dp->i_mount;
+	/*
+	 * Read the leaf block.
+	 */
+	error = xfs_da_read_buf(tp, dp, mp->m_dirleafblk, -1, &lbp,
+		XFS_DATA_FORK);
+	if (error) {
+		return error;
+	}
+	ASSERT(lbp != NULL);
+	/*
+	 * Look up the entry by hash value and name.
+	 * We know it's not there, our caller has already done a lookup.
+	 * So the index is of the entry to insert in front of.
+	 * But if there are dup hash values the index is of the first of those.
+	 */
+	index = xfs_dir2_leaf_search_hash(args, lbp);
+	leaf = lbp->data;
+	ltp = XFS_DIR2_LEAF_TAIL_P(mp, leaf);
+	bestsp = XFS_DIR2_LEAF_BESTS_P_ARCH(ltp, ARCH_CONVERT);
+	length = XFS_DIR2_DATA_ENTSIZE(args->namelen);
+	/*
+	 * See if there are any entries with the same hash value
+	 * and space in their block for the new entry.
+	 * This is good because it puts multiple same-hash value entries
+	 * in a data block, improving the lookup of those entries.
+	 */
+	for (use_block = -1, lep = &leaf->ents[index];
+	     index < INT_GET(leaf->hdr.count, ARCH_CONVERT) && INT_GET(lep->hashval, ARCH_CONVERT) == args->hashval;
+	     index++, lep++) {
+		if (INT_GET(lep->address, ARCH_CONVERT) == XFS_DIR2_NULL_DATAPTR)
+			continue;
+		i = XFS_DIR2_DATAPTR_TO_DB(mp, INT_GET(lep->address, ARCH_CONVERT));
+		ASSERT(i < INT_GET(ltp->bestcount, ARCH_CONVERT));
+		ASSERT(INT_GET(bestsp[i], ARCH_CONVERT) != NULLDATAOFF);
+		if (INT_GET(bestsp[i], ARCH_CONVERT) >= length) {
+			use_block = i;
+			break;
+		}
+	}
+	/*
+	 * Didn't find a block yet, linear search all the data blocks.
+	 */
+	if (use_block == -1) {
+		for (i = 0; i < INT_GET(ltp->bestcount, ARCH_CONVERT); i++) {
+			/*
+			 * Remember a block we see that's missing.
+			 */
+			if (INT_GET(bestsp[i], ARCH_CONVERT) == NULLDATAOFF && use_block == -1)
+				use_block = i;
+			else if (INT_GET(bestsp[i], ARCH_CONVERT) >= length) {
+				use_block = i;
+				break;
+			}
+		}
+	}
+	/*
+	 * How many bytes do we need in the leaf block?
+	 */
+	needbytes =
+		(!INT_ISZERO(leaf->hdr.stale, ARCH_CONVERT) ? 0 : (uint)sizeof(leaf->ents[0])) +
+		(use_block != -1 ? 0 : (uint)sizeof(leaf->bests[0]));
+	/*
+	 * Now kill use_block if it refers to a missing block, so we
+	 * can use it as an indication of allocation needed.
+	 */
+	if (use_block != -1 && INT_GET(bestsp[use_block], ARCH_CONVERT) == NULLDATAOFF)
+		use_block = -1;
+	/*
+	 * If we don't have enough free bytes but we can make enough
+	 * by compacting out stale entries, we'll do that.
+	 */
+	if ((char *)bestsp - (char *)&leaf->ents[INT_GET(leaf->hdr.count, ARCH_CONVERT)] < needbytes &&
+	    INT_GET(leaf->hdr.stale, ARCH_CONVERT) > 1) {
+		compact = 1;
+	}
+	/*
+	 * Otherwise if we don't have enough free bytes we need to
+	 * convert to node form.
+	 */
+	else if ((char *)bestsp - (char *)&leaf->ents[INT_GET(leaf->hdr.count, ARCH_CONVERT)] <
+		 needbytes) {
+		/*
+		 * Just checking or no space reservation, give up.
+		 */
+		if (args->justcheck || args->total == 0) {
+			xfs_da_brelse(tp, lbp);
+			return XFS_ERROR(ENOSPC);
+		}
+		/*
+		 * Convert to node form.
+		 */
+		error = xfs_dir2_leaf_to_node(args, lbp);
+		xfs_da_buf_done(lbp);
+		if (error)
+			return error;
+		/*
+		 * Then add the new entry.
+		 */
+		return xfs_dir2_node_addname(args);
+	}
+	/*
+	 * Otherwise it will fit without compaction.
+	 */
+	else
+		compact = 0;
+	/*
+	 * If just checking, then it will fit unless we needed to allocate
+	 * a new data block.
+	 */
+	if (args->justcheck) {
+		xfs_da_brelse(tp, lbp);
+		return use_block == -1 ? XFS_ERROR(ENOSPC) : 0;
+	}
+	/*
+	 * If no allocations are allowed, return now before we've
+	 * changed anything.
+	 */
+	if (args->total == 0 && use_block == -1) {
+		xfs_da_brelse(tp, lbp);
+		return XFS_ERROR(ENOSPC);
+	}
+	/*
+	 * Need to compact the leaf entries, removing stale ones.
+	 * Leave one stale entry behind - the one closest to our
+	 * insertion index - and we'll shift that one to our insertion
+	 * point later.
+	 */
+	if (compact) {
+		xfs_dir2_leaf_compact_x1(lbp, &index, &lowstale, &highstale,
+			&lfloglow, &lfloghigh);
+	}
+	/*
+	 * There are stale entries, so we'll need log-low and log-high
+	 * impossibly bad values later.
+	 */
+	else if (INT_GET(leaf->hdr.stale, ARCH_CONVERT)) {
+		lfloglow = INT_GET(leaf->hdr.count, ARCH_CONVERT);
+		lfloghigh = -1;
+	}
+	/*
+	 * If there was no data block space found, we need to allocate
+	 * a new one.
+	 */
+	if (use_block == -1) {
+		/*
+		 * Add the new data block.
+		 */
+		if ((error = xfs_dir2_grow_inode(args, XFS_DIR2_DATA_SPACE,
+				&use_block))) {
+			xfs_da_brelse(tp, lbp);
+			return error;
+		}
+		/*
+		 * Initialize the block.
+		 */
+		if ((error = xfs_dir2_data_init(args, use_block, &dbp))) {
+			xfs_da_brelse(tp, lbp);
+			return error;
+		}
+		/*
+		 * If we're adding a new data block on the end we need to
+		 * extend the bests table.  Copy it up one entry.
+		 */
+		if (use_block >= INT_GET(ltp->bestcount, ARCH_CONVERT)) {
+			bestsp--;
+			memmove(&bestsp[0], &bestsp[1],
+				INT_GET(ltp->bestcount, ARCH_CONVERT) * sizeof(bestsp[0]));
+			INT_MOD(ltp->bestcount, ARCH_CONVERT, +1);
+			xfs_dir2_leaf_log_tail(tp, lbp);
+			xfs_dir2_leaf_log_bests(tp, lbp, 0, INT_GET(ltp->bestcount, ARCH_CONVERT) - 1);
+		}
+		/*
+		 * If we're filling in a previously empty block just log it.
+		 */
+		else
+			xfs_dir2_leaf_log_bests(tp, lbp, use_block, use_block);
+		data = dbp->data;
+		INT_COPY(bestsp[use_block], data->hdr.bestfree[0].length, ARCH_CONVERT);
+		grown = 1;
+	}
+	/*
+	 * Already had space in some data block.
+	 * Just read that one in.
+	 */
+	else {
+		if ((error =
+		    xfs_da_read_buf(tp, dp, XFS_DIR2_DB_TO_DA(mp, use_block),
+			    -1, &dbp, XFS_DATA_FORK))) {
+			xfs_da_brelse(tp, lbp);
+			return error;
+		}
+		data = dbp->data;
+		grown = 0;
+	}
+	xfs_dir2_data_check(dp, dbp);
+	/*
+	 * Point to the biggest freespace in our data block.
+	 */
+	dup = (xfs_dir2_data_unused_t *)
+	      ((char *)data + INT_GET(data->hdr.bestfree[0].offset, ARCH_CONVERT));
+	ASSERT(INT_GET(dup->length, ARCH_CONVERT) >= length);
+	needscan = needlog = 0;
+	/*
+	 * Mark the initial part of our freespace in use for the new entry.
+	 */
+	xfs_dir2_data_use_free(tp, dbp, dup,
+		(xfs_dir2_data_aoff_t)((char *)dup - (char *)data), length,
+		&needlog, &needscan);
+	/*
+	 * Initialize our new entry (at last).
+	 */
+	dep = (xfs_dir2_data_entry_t *)dup;
+	INT_SET(dep->inumber, ARCH_CONVERT, args->inumber);
+	dep->namelen = args->namelen;
+	memcpy(dep->name, args->name, dep->namelen);
+	tagp = XFS_DIR2_DATA_ENTRY_TAG_P(dep);
+	INT_SET(*tagp, ARCH_CONVERT, (xfs_dir2_data_off_t)((char *)dep - (char *)data));
+	/*
+	 * Need to scan fix up the bestfree table.
+	 */
+	if (needscan)
+		xfs_dir2_data_freescan(mp, data, &needlog, NULL);
+	/*
+	 * Need to log the data block's header.
+	 */
+	if (needlog)
+		xfs_dir2_data_log_header(tp, dbp);
+	xfs_dir2_data_log_entry(tp, dbp, dep);
+	/*
+	 * If the bests table needs to be changed, do it.
+	 * Log the change unless we've already done that.
+	 */
+	if (INT_GET(bestsp[use_block], ARCH_CONVERT) != INT_GET(data->hdr.bestfree[0].length, ARCH_CONVERT)) {
+		INT_COPY(bestsp[use_block], data->hdr.bestfree[0].length, ARCH_CONVERT);
+		if (!grown)
+			xfs_dir2_leaf_log_bests(tp, lbp, use_block, use_block);
+	}
+	/*
+	 * Now we need to make room to insert the leaf entry.
+	 * If there are no stale entries, we just insert a hole at index.
+	 */
+	if (INT_ISZERO(leaf->hdr.stale, ARCH_CONVERT)) {
+		/*
+		 * lep is still good as the index leaf entry.
+		 */
+		if (index < INT_GET(leaf->hdr.count, ARCH_CONVERT))
+			memmove(lep + 1, lep,
+				(INT_GET(leaf->hdr.count, ARCH_CONVERT) - index) * sizeof(*lep));
+		/*
+		 * Record low and high logging indices for the leaf.
+		 */
+		lfloglow = index;
+		lfloghigh = INT_GET(leaf->hdr.count, ARCH_CONVERT);
+		INT_MOD(leaf->hdr.count, ARCH_CONVERT, +1);
+	}
+	/*
+	 * There are stale entries.
+	 * We will use one of them for the new entry.
+	 * It's probably not at the right location, so we'll have to
+	 * shift some up or down first.
+	 */
+	else {
+		/*
+		 * If we didn't compact before, we need to find the nearest
+		 * stale entries before and after our insertion point.
+		 */
+		if (compact == 0) {
+			/*
+			 * Find the first stale entry before the insertion
+			 * point, if any.
+			 */
+			for (lowstale = index - 1;
+			     lowstale >= 0 &&
+				INT_GET(leaf->ents[lowstale].address, ARCH_CONVERT) !=
+				XFS_DIR2_NULL_DATAPTR;
+			     lowstale--)
+				continue;
+			/*
+			 * Find the next stale entry at or after the insertion
+			 * point, if any.   Stop if we go so far that the
+			 * lowstale entry would be better.
+			 */
+			for (highstale = index;
+			     highstale < INT_GET(leaf->hdr.count, ARCH_CONVERT) &&
+				INT_GET(leaf->ents[highstale].address, ARCH_CONVERT) !=
+				XFS_DIR2_NULL_DATAPTR &&
+				(lowstale < 0 ||
+				 index - lowstale - 1 >= highstale - index);
+			     highstale++)
+				continue;
+		}
+		/*
+		 * If the low one is better, use it.
+		 */
+		if (lowstale >= 0 &&
+		    (highstale == INT_GET(leaf->hdr.count, ARCH_CONVERT) ||
+		     index - lowstale - 1 < highstale - index)) {
+			ASSERT(index - lowstale - 1 >= 0);
+			ASSERT(INT_GET(leaf->ents[lowstale].address, ARCH_CONVERT) ==
+			       XFS_DIR2_NULL_DATAPTR);
+			/*
+			 * Copy entries up to cover the stale entry
+			 * and make room for the new entry.
+			 */
+			if (index - lowstale - 1 > 0)
+				memmove(&leaf->ents[lowstale],
+					&leaf->ents[lowstale + 1],
+					(index - lowstale - 1) * sizeof(*lep));
+			lep = &leaf->ents[index - 1];
+			lfloglow = MIN(lowstale, lfloglow);
+			lfloghigh = MAX(index - 1, lfloghigh);
+		}
+		/*
+		 * The high one is better, so use that one.
+		 */
+		else {
+			ASSERT(highstale - index >= 0);
+			ASSERT(INT_GET(leaf->ents[highstale].address, ARCH_CONVERT) ==
+			       XFS_DIR2_NULL_DATAPTR);
+			/*
+			 * Copy entries down to copver the stale entry
+			 * and make room for the new entry.
+			 */
+			if (highstale - index > 0)
+				memmove(&leaf->ents[index + 1],
+					&leaf->ents[index],
+					(highstale - index) * sizeof(*lep));
+			lep = &leaf->ents[index];
+			lfloglow = MIN(index, lfloglow);
+			lfloghigh = MAX(highstale, lfloghigh);
+		}
+		INT_MOD(leaf->hdr.stale, ARCH_CONVERT, -1);
+	}
+	/*
+	 * Fill in the new leaf entry.
+	 */
+	INT_SET(lep->hashval, ARCH_CONVERT, args->hashval);
+	INT_SET(lep->address, ARCH_CONVERT, XFS_DIR2_DB_OFF_TO_DATAPTR(mp, use_block, INT_GET(*tagp, ARCH_CONVERT)));
+	/*
+	 * Log the leaf fields and give up the buffers.
+	 */
+	xfs_dir2_leaf_log_header(tp, lbp);
+	xfs_dir2_leaf_log_ents(tp, lbp, lfloglow, lfloghigh);
+	xfs_dir2_leaf_check(dp, lbp);
+	xfs_da_buf_done(lbp);
+	xfs_dir2_data_check(dp, dbp);
+	xfs_da_buf_done(dbp);
+	return 0;
+}
+
+#ifdef DEBUG
+/*
+ * Check the internal consistency of a leaf1 block.
+ * Pop an assert if something is wrong.
+ */
+void
+xfs_dir2_leaf_check(
+	xfs_inode_t		*dp,		/* incore directory inode */
+	xfs_dabuf_t		*bp)		/* leaf's buffer */
+{
+	int			i;		/* leaf index */
+	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
+	xfs_dir2_leaf_tail_t	*ltp;		/* leaf tail pointer */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+	int			stale;		/* count of stale leaves */
+
+	leaf = bp->data;
+	mp = dp->i_mount;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR2_LEAF1_MAGIC);
+	/*
+	 * This value is not restrictive enough.
+	 * Should factor in the size of the bests table as well.
+	 * We can deduce a value for that from di_size.
+	 */
+	ASSERT(INT_GET(leaf->hdr.count, ARCH_CONVERT) <= XFS_DIR2_MAX_LEAF_ENTS(mp));
+	ltp = XFS_DIR2_LEAF_TAIL_P(mp, leaf);
+	/*
+	 * Leaves and bests don't overlap.
+	 */
+	ASSERT((char *)&leaf->ents[INT_GET(leaf->hdr.count, ARCH_CONVERT)] <=
+	       (char *)XFS_DIR2_LEAF_BESTS_P_ARCH(ltp, ARCH_CONVERT));
+	/*
+	 * Check hash value order, count stale entries.
+	 */
+	for (i = stale = 0; i < INT_GET(leaf->hdr.count, ARCH_CONVERT); i++) {
+		if (i + 1 < INT_GET(leaf->hdr.count, ARCH_CONVERT))
+			ASSERT(INT_GET(leaf->ents[i].hashval, ARCH_CONVERT) <=
+			       INT_GET(leaf->ents[i + 1].hashval, ARCH_CONVERT));
+		if (INT_GET(leaf->ents[i].address, ARCH_CONVERT) == XFS_DIR2_NULL_DATAPTR)
+			stale++;
+	}
+	ASSERT(INT_GET(leaf->hdr.stale, ARCH_CONVERT) == stale);
+}
+#endif	/* DEBUG */
+
+/*
+ * Compact out any stale entries in the leaf.
+ * Log the header and changed leaf entries, if any.
+ */
+void
+xfs_dir2_leaf_compact(
+	xfs_da_args_t	*args,		/* operation arguments */
+	xfs_dabuf_t	*bp)		/* leaf buffer */
+{
+	int		from;		/* source leaf index */
+	xfs_dir2_leaf_t	*leaf;		/* leaf structure */
+	int		loglow;		/* first leaf entry to log */
+	int		to;		/* target leaf index */
+
+	leaf = bp->data;
+	if (INT_ISZERO(leaf->hdr.stale, ARCH_CONVERT)) {
+		return;
+	}
+	/*
+	 * Compress out the stale entries in place.
+	 */
+	for (from = to = 0, loglow = -1; from < INT_GET(leaf->hdr.count, ARCH_CONVERT); from++) {
+		if (INT_GET(leaf->ents[from].address, ARCH_CONVERT) == XFS_DIR2_NULL_DATAPTR)
+			continue;
+		/*
+		 * Only actually copy the entries that are different.
+		 */
+		if (from > to) {
+			if (loglow == -1)
+				loglow = to;
+			leaf->ents[to] = leaf->ents[from];
+		}
+		to++;
+	}
+	/*
+	 * Update and log the header, log the leaf entries.
+	 */
+	ASSERT(INT_GET(leaf->hdr.stale, ARCH_CONVERT) == from - to);
+	INT_MOD(leaf->hdr.count, ARCH_CONVERT, -(INT_GET(leaf->hdr.stale, ARCH_CONVERT)));
+	INT_ZERO(leaf->hdr.stale, ARCH_CONVERT);
+	xfs_dir2_leaf_log_header(args->trans, bp);
+	if (loglow != -1)
+		xfs_dir2_leaf_log_ents(args->trans, bp, loglow, to - 1);
+}
+
+/*
+ * Compact the leaf entries, removing stale ones.
+ * Leave one stale entry behind - the one closest to our
+ * insertion index - and the caller will shift that one to our insertion
+ * point later.
+ * Return new insertion index, where the remaining stale entry is,
+ * and leaf logging indices.
+ */
+void
+xfs_dir2_leaf_compact_x1(
+	xfs_dabuf_t	*bp,		/* leaf buffer */
+	int		*indexp,	/* insertion index */
+	int		*lowstalep,	/* out: stale entry before us */
+	int		*highstalep,	/* out: stale entry after us */
+	int		*lowlogp,	/* out: low log index */
+	int		*highlogp)	/* out: high log index */
+{
+	int		from;		/* source copy index */
+	int		highstale;	/* stale entry at/after index */
+	int		index;		/* insertion index */
+	int		keepstale;	/* source index of kept stale */
+	xfs_dir2_leaf_t	*leaf;		/* leaf structure */
+	int		lowstale;	/* stale entry before index */
+	int		newindex=0;	/* new insertion index */
+	int		to;		/* destination copy index */
+
+	leaf = bp->data;
+	ASSERT(INT_GET(leaf->hdr.stale, ARCH_CONVERT) > 1);
+	index = *indexp;
+	/*
+	 * Find the first stale entry before our index, if any.
+	 */
+	for (lowstale = index - 1;
+	     lowstale >= 0 &&
+		INT_GET(leaf->ents[lowstale].address, ARCH_CONVERT) != XFS_DIR2_NULL_DATAPTR;
+	     lowstale--)
+		continue;
+	/*
+	 * Find the first stale entry at or after our index, if any.
+	 * Stop if the answer would be worse than lowstale.
+	 */
+	for (highstale = index;
+	     highstale < INT_GET(leaf->hdr.count, ARCH_CONVERT) &&
+		INT_GET(leaf->ents[highstale].address, ARCH_CONVERT) != XFS_DIR2_NULL_DATAPTR &&
+		(lowstale < 0 || index - lowstale > highstale - index);
+	     highstale++)
+		continue;
+	/*
+	 * Pick the better of lowstale and highstale.
+	 */
+	if (lowstale >= 0 &&
+	    (highstale == INT_GET(leaf->hdr.count, ARCH_CONVERT) ||
+	     index - lowstale <= highstale - index))
+		keepstale = lowstale;
+	else
+		keepstale = highstale;
+	/*
+	 * Copy the entries in place, removing all the stale entries
+	 * except keepstale.
+	 */
+	for (from = to = 0; from < INT_GET(leaf->hdr.count, ARCH_CONVERT); from++) {
+		/*
+		 * Notice the new value of index.
+		 */
+		if (index == from)
+			newindex = to;
+		if (from != keepstale &&
+		    INT_GET(leaf->ents[from].address, ARCH_CONVERT) == XFS_DIR2_NULL_DATAPTR) {
+			if (from == to)
+				*lowlogp = to;
+			continue;
+		}
+		/*
+		 * Record the new keepstale value for the insertion.
+		 */
+		if (from == keepstale)
+			lowstale = highstale = to;
+		/*
+		 * Copy only the entries that have moved.
+		 */
+		if (from > to)
+			leaf->ents[to] = leaf->ents[from];
+		to++;
+	}
+	ASSERT(from > to);
+	/*
+	 * If the insertion point was past the last entry,
+	 * set the new insertion point accordingly.
+	 */
+	if (index == from)
+		newindex = to;
+	*indexp = newindex;
+	/*
+	 * Adjust the leaf header values.
+	 */
+	INT_MOD(leaf->hdr.count, ARCH_CONVERT, -(from - to));
+	INT_SET(leaf->hdr.stale, ARCH_CONVERT, 1);
+	/*
+	 * Remember the low/high stale value only in the "right"
+	 * direction.
+	 */
+	if (lowstale >= newindex)
+		lowstale = -1;
+	else
+		highstale = INT_GET(leaf->hdr.count, ARCH_CONVERT);
+	*highlogp = INT_GET(leaf->hdr.count, ARCH_CONVERT) - 1;
+	*lowstalep = lowstale;
+	*highstalep = highstale;
+}
+
+/*
+ * Getdents (readdir) for leaf and node directories.
+ * This reads the data blocks only, so is the same for both forms.
+ */
+int						/* error */
+xfs_dir2_leaf_getdents(
+	xfs_trans_t		*tp,		/* transaction pointer */
+	xfs_inode_t		*dp,		/* incore directory inode */
+	uio_t			*uio,		/* I/O control & vectors */
+	int			*eofp,		/* out: reached end of dir */
+	xfs_dirent_t		*dbp,		/* caller's buffer */
+	xfs_dir2_put_t		put)		/* ABI formatting routine */
+{
+	xfs_dabuf_t		*bp;		/* data block buffer */
+	int			byteoff;	/* offset in current block */
+	xfs_dir2_db_t		curdb;		/* db for current block */
+	xfs_dir2_off_t		curoff;		/* current overall offset */
+	xfs_dir2_data_t		*data;		/* data block structure */
+	xfs_dir2_data_entry_t	*dep;		/* data entry */
+	xfs_dir2_data_unused_t	*dup;		/* unused entry */
+	int			eof;		/* reached end of directory */
+	int			error=0;		/* error return value */
+	int			i;		/* temporary loop index */
+	int			j;		/* temporary loop index */
+	int			length;		/* temporary length value */
+	xfs_bmbt_irec_t		*map;		/* map vector for blocks */
+	xfs_extlen_t		map_blocks;	/* number of fsbs in map */
+	xfs_dablk_t		map_off;	/* last mapped file offset */
+	int			map_size;	/* total entries in *map */
+	int			map_valid;	/* valid entries in *map */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+	xfs_dir2_off_t		newoff;		/* new curoff after new blk */
+	int			nmap;		/* mappings to ask xfs_bmapi */
+	xfs_dir2_put_args_t	p;		/* formatting arg bundle */
+	char			*ptr=NULL;		/* pointer to current data */
+	int			ra_current;	/* number of read-ahead blks */
+	int			ra_index;	/* *map index for read-ahead */
+	int			ra_offset;	/* map entry offset for ra */
+	int			ra_want;	/* readahead count wanted */
+
+	/*
+	 * If the offset is at or past the largest allowed value,
+	 * give up right away, return eof.
+	 */
+	if (uio->uio_offset >= XFS_DIR2_MAX_DATAPTR) {
+		*eofp = 1;
+		return 0;
+	}
+	mp = dp->i_mount;
+	/*
+	 * Setup formatting arguments.
+	 */
+	p.dbp = dbp;
+	p.put = put;
+	p.uio = uio;
+	/*
+	 * Set up to bmap a number of blocks based on the caller's
+	 * buffer size, the directory block size, and the filesystem
+	 * block size.
+	 */
+	map_size =
+		howmany(uio->uio_resid + mp->m_dirblksize,
+			mp->m_sb.sb_blocksize);
+	map = kmem_alloc(map_size * sizeof(*map), KM_SLEEP);
+	map_valid = ra_index = ra_offset = ra_current = map_blocks = 0;
+	bp = NULL;
+	eof = 1;
+	/*
+	 * Inside the loop we keep the main offset value as a byte offset
+	 * in the directory file.
+	 */
+	curoff = XFS_DIR2_DATAPTR_TO_BYTE(mp, uio->uio_offset);
+	/*
+	 * Force this conversion through db so we truncate the offset
+	 * down to get the start of the data block.
+	 */
+	map_off = XFS_DIR2_DB_TO_DA(mp, XFS_DIR2_BYTE_TO_DB(mp, curoff));
+	/*
+	 * Loop over directory entries until we reach the end offset.
+	 * Get more blocks and readahead as necessary.
+	 */
+	while (curoff < XFS_DIR2_LEAF_OFFSET) {
+		/*
+		 * If we have no buffer, or we're off the end of the
+		 * current buffer, need to get another one.
+		 */
+		if (!bp || ptr >= (char *)bp->data + mp->m_dirblksize) {
+			/*
+			 * If we have a buffer, we need to release it and
+			 * take it out of the mapping.
+			 */
+			if (bp) {
+				xfs_da_brelse(tp, bp);
+				bp = NULL;
+				map_blocks -= mp->m_dirblkfsbs;
+				/*
+				 * Loop to get rid of the extents for the
+				 * directory block.
+				 */
+				for (i = mp->m_dirblkfsbs; i > 0; ) {
+					j = MIN((int)map->br_blockcount, i);
+					map->br_blockcount -= j;
+					map->br_startblock += j;
+					map->br_startoff += j;
+					/*
+					 * If mapping is done, pitch it from
+					 * the table.
+					 */
+					if (!map->br_blockcount && --map_valid)
+						memmove(&map[0], &map[1],
+							sizeof(map[0]) *
+							map_valid);
+					i -= j;
+				}
+			}
+			/*
+			 * Recalculate the readahead blocks wanted.
+			 */
+			ra_want = howmany(uio->uio_resid + mp->m_dirblksize,
+					  mp->m_sb.sb_blocksize) - 1;
+			/*
+			 * If we don't have as many as we want, and we haven't
+			 * run out of data blocks, get some more mappings.
+			 */
+			if (1 + ra_want > map_blocks &&
+			    map_off <
+			    XFS_DIR2_BYTE_TO_DA(mp, XFS_DIR2_LEAF_OFFSET)) {
+				/*
+				 * Get more bmaps, fill in after the ones
+				 * we already have in the table.
+				 */
+				nmap = map_size - map_valid;
+				error = xfs_bmapi(tp, dp,
+					map_off,
+					XFS_DIR2_BYTE_TO_DA(mp,
+						XFS_DIR2_LEAF_OFFSET) - map_off,
+					XFS_BMAPI_METADATA, NULL, 0,
+					&map[map_valid], &nmap, NULL);
+				/*
+				 * Don't know if we should ignore this or
+				 * try to return an error.
+				 * The trouble with returning errors
+				 * is that readdir will just stop without
+				 * actually passing the error through.
+				 */
+				if (error)
+					break;	/* XXX */
+				/*
+				 * If we got all the mappings we asked for,
+				 * set the final map offset based on the
+				 * last bmap value received.
+				 * Otherwise, we've reached the end.
+				 */
+				if (nmap == map_size - map_valid)
+					map_off =
+					map[map_valid + nmap - 1].br_startoff +
+					map[map_valid + nmap - 1].br_blockcount;
+				else
+					map_off =
+						XFS_DIR2_BYTE_TO_DA(mp,
+							XFS_DIR2_LEAF_OFFSET);
+				/*
+				 * Look for holes in the mapping, and
+				 * eliminate them.  Count up the valid blocks.
+				 */
+				for (i = map_valid; i < map_valid + nmap; ) {
+					if (map[i].br_startblock ==
+					    HOLESTARTBLOCK) {
+						nmap--;
+						length = map_valid + nmap - i;
+						if (length)
+							memmove(&map[i],
+								&map[i + 1],
+								sizeof(map[i]) *
+								length);
+					} else {
+						map_blocks +=
+							map[i].br_blockcount;
+						i++;
+					}
+				}
+				map_valid += nmap;
+			}
+			/*
+			 * No valid mappings, so no more data blocks.
+			 */
+			if (!map_valid) {
+				curoff = XFS_DIR2_DA_TO_BYTE(mp, map_off);
+				break;
+			}
+			/*
+			 * Read the directory block starting at the first
+			 * mapping.
+			 */
+			curdb = XFS_DIR2_DA_TO_DB(mp, map->br_startoff);
+			error = xfs_da_read_buf(tp, dp, map->br_startoff,
+				map->br_blockcount >= mp->m_dirblkfsbs ?
+				    XFS_FSB_TO_DADDR(mp, map->br_startblock) :
+				    -1,
+				&bp, XFS_DATA_FORK);
+			/*
+			 * Should just skip over the data block instead
+			 * of giving up.
+			 */
+			if (error)
+				break;	/* XXX */
+			/*
+			 * Adjust the current amount of read-ahead: we just
+			 * read a block that was previously ra.
+			 */
+			if (ra_current)
+				ra_current -= mp->m_dirblkfsbs;
+			/*
+			 * Do we need more readahead?
+			 */
+			for (ra_index = ra_offset = i = 0;
+			     ra_want > ra_current && i < map_blocks;
+			     i += mp->m_dirblkfsbs) {
+				ASSERT(ra_index < map_valid);
+				/*
+				 * Read-ahead a contiguous directory block.
+				 */
+				if (i > ra_current &&
+				    map[ra_index].br_blockcount >=
+				    mp->m_dirblkfsbs) {
+					xfs_baread(mp->m_ddev_targp,
+						XFS_FSB_TO_DADDR(mp,
+						   map[ra_index].br_startblock +
+						   ra_offset),
+						(int)BTOBB(mp->m_dirblksize));
+					ra_current = i;
+				}
+				/*
+				 * Read-ahead a non-contiguous directory block.
+				 * This doesn't use our mapping, but this
+				 * is a very rare case.
+				 */
+				else if (i > ra_current) {
+					(void)xfs_da_reada_buf(tp, dp,
+						map[ra_index].br_startoff +
+						ra_offset, XFS_DATA_FORK);
+					ra_current = i;
+				}
+				/*
+				 * Advance offset through the mapping table.
+				 */
+				for (j = 0; j < mp->m_dirblkfsbs; j++) {
+					/*
+					 * The rest of this extent but not
+					 * more than a dir block.
+					 */
+					length = MIN(mp->m_dirblkfsbs,
+						(int)(map[ra_index].br_blockcount -
+						ra_offset));
+					j += length;
+					ra_offset += length;
+					/*
+					 * Advance to the next mapping if
+					 * this one is used up.
+					 */
+					if (ra_offset ==
+					    map[ra_index].br_blockcount) {
+						ra_offset = 0;
+						ra_index++;
+					}
+				}
+			}
+			/*
+			 * Having done a read, we need to set a new offset.
+			 */
+			newoff = XFS_DIR2_DB_OFF_TO_BYTE(mp, curdb, 0);
+			/*
+			 * Start of the current block.
+			 */
+			if (curoff < newoff)
+				curoff = newoff;
+			/*
+			 * Make sure we're in the right block.
+			 */
+			else if (curoff > newoff)
+				ASSERT(XFS_DIR2_BYTE_TO_DB(mp, curoff) ==
+				       curdb);
+			data = bp->data;
+			xfs_dir2_data_check(dp, bp);
+			/*
+			 * Find our position in the block.
+			 */
+			ptr = (char *)&data->u;
+			byteoff = XFS_DIR2_BYTE_TO_OFF(mp, curoff);
+			/*
+			 * Skip past the header.
+			 */
+			if (byteoff == 0)
+				curoff += (uint)sizeof(data->hdr);
+			/*
+			 * Skip past entries until we reach our offset.
+			 */
+			else {
+				while ((char *)ptr - (char *)data < byteoff) {
+					dup = (xfs_dir2_data_unused_t *)ptr;
+
+					if (INT_GET(dup->freetag, ARCH_CONVERT)
+						  == XFS_DIR2_DATA_FREE_TAG) {
+
+						length = INT_GET(dup->length,
+								 ARCH_CONVERT);
+						ptr += length;
+						continue;
+					}
+					dep = (xfs_dir2_data_entry_t *)ptr;
+					length =
+					   XFS_DIR2_DATA_ENTSIZE(dep->namelen);
+					ptr += length;
+				}
+				/*
+				 * Now set our real offset.
+				 */
+				curoff =
+					XFS_DIR2_DB_OFF_TO_BYTE(mp,
+					    XFS_DIR2_BYTE_TO_DB(mp, curoff),
+					    (char *)ptr - (char *)data);
+				if (ptr >= (char *)data + mp->m_dirblksize) {
+					continue;
+				}
+			}
+		}
+		/*
+		 * We have a pointer to an entry.
+		 * Is it a live one?
+		 */
+		dup = (xfs_dir2_data_unused_t *)ptr;
+		/*
+		 * No, it's unused, skip over it.
+		 */
+		if (INT_GET(dup->freetag, ARCH_CONVERT)
+						== XFS_DIR2_DATA_FREE_TAG) {
+			length = INT_GET(dup->length, ARCH_CONVERT);
+			ptr += length;
+			curoff += length;
+			continue;
+		}
+
+		/*
+		 * Copy the entry into the putargs, and try formatting it.
+		 */
+		dep = (xfs_dir2_data_entry_t *)ptr;
+
+		p.namelen = dep->namelen;
+
+		length = XFS_DIR2_DATA_ENTSIZE(p.namelen);
+
+		p.cook = XFS_DIR2_BYTE_TO_DATAPTR(mp, curoff + length);
+
+		p.ino = INT_GET(dep->inumber, ARCH_CONVERT);
+#if XFS_BIG_INUMS
+		p.ino += mp->m_inoadd;
+#endif
+		p.name = (char *)dep->name;
+
+		error = p.put(&p);
+
+		/*
+		 * Won't fit.  Return to caller.
+		 */
+		if (!p.done) {
+			eof = 0;
+			break;
+		}
+		/*
+		 * Advance to next entry in the block.
+		 */
+		ptr += length;
+		curoff += length;
+	}
+
+	/*
+	 * All done.  Set output offset value to current offset.
+	 */
+	*eofp = eof;
+	if (curoff > XFS_DIR2_DATAPTR_TO_BYTE(mp, XFS_DIR2_MAX_DATAPTR))
+		uio->uio_offset = XFS_DIR2_MAX_DATAPTR;
+	else
+		uio->uio_offset = XFS_DIR2_BYTE_TO_DATAPTR(mp, curoff);
+	kmem_free(map, map_size * sizeof(*map));
+	if (bp)
+		xfs_da_brelse(tp, bp);
+	return error;
+}
+
+/*
+ * Initialize a new leaf block, leaf1 or leafn magic accepted.
+ */
+int
+xfs_dir2_leaf_init(
+	xfs_da_args_t		*args,		/* operation arguments */
+	xfs_dir2_db_t		bno,		/* directory block number */
+	xfs_dabuf_t		**bpp,		/* out: leaf buffer */
+	int			magic)		/* magic number for block */
+{
+	xfs_dabuf_t		*bp;		/* leaf buffer */
+	xfs_inode_t		*dp;		/* incore directory inode */
+	int			error;		/* error return code */
+	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
+	xfs_dir2_leaf_tail_t	*ltp;		/* leaf tail structure */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+	xfs_trans_t		*tp;		/* transaction pointer */
+
+	dp = args->dp;
+	ASSERT(dp != NULL);
+	tp = args->trans;
+	mp = dp->i_mount;
+	ASSERT(bno >= XFS_DIR2_LEAF_FIRSTDB(mp) &&
+	       bno < XFS_DIR2_FREE_FIRSTDB(mp));
+	/*
+	 * Get the buffer for the block.
+	 */
+	error = xfs_da_get_buf(tp, dp, XFS_DIR2_DB_TO_DA(mp, bno), -1, &bp,
+		XFS_DATA_FORK);
+	if (error) {
+		return error;
+	}
+	ASSERT(bp != NULL);
+	leaf = bp->data;
+	/*
+	 * Initialize the header.
+	 */
+	INT_SET(leaf->hdr.info.magic, ARCH_CONVERT, magic);
+	INT_ZERO(leaf->hdr.info.forw, ARCH_CONVERT);
+	INT_ZERO(leaf->hdr.info.back, ARCH_CONVERT);
+	INT_ZERO(leaf->hdr.count, ARCH_CONVERT);
+	INT_ZERO(leaf->hdr.stale, ARCH_CONVERT);
+	xfs_dir2_leaf_log_header(tp, bp);
+	/*
+	 * If it's a leaf-format directory initialize the tail.
+	 * In this case our caller has the real bests table to copy into
+	 * the block.
+	 */
+	if (magic == XFS_DIR2_LEAF1_MAGIC) {
+		ltp = XFS_DIR2_LEAF_TAIL_P(mp, leaf);
+		INT_ZERO(ltp->bestcount, ARCH_CONVERT);
+		xfs_dir2_leaf_log_tail(tp, bp);
+	}
+	*bpp = bp;
+	return 0;
+}
+
+/*
+ * Log the bests entries indicated from a leaf1 block.
+ */
+void
+xfs_dir2_leaf_log_bests(
+	xfs_trans_t		*tp,		/* transaction pointer */
+	xfs_dabuf_t		*bp,		/* leaf buffer */
+	int			first,		/* first entry to log */
+	int			last)		/* last entry to log */
+{
+	xfs_dir2_data_off_t	*firstb;	/* pointer to first entry */
+	xfs_dir2_data_off_t	*lastb;		/* pointer to last entry */
+	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
+	xfs_dir2_leaf_tail_t	*ltp;		/* leaf tail structure */
+
+	leaf = bp->data;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR2_LEAF1_MAGIC);
+	ltp = XFS_DIR2_LEAF_TAIL_P(tp->t_mountp, leaf);
+	firstb = XFS_DIR2_LEAF_BESTS_P_ARCH(ltp, ARCH_CONVERT) + first;
+	lastb = XFS_DIR2_LEAF_BESTS_P_ARCH(ltp, ARCH_CONVERT) + last;
+	xfs_da_log_buf(tp, bp, (uint)((char *)firstb - (char *)leaf),
+		(uint)((char *)lastb - (char *)leaf + sizeof(*lastb) - 1));
+}
+
+/*
+ * Log the leaf entries indicated from a leaf1 or leafn block.
+ */
+void
+xfs_dir2_leaf_log_ents(
+	xfs_trans_t		*tp,		/* transaction pointer */
+	xfs_dabuf_t		*bp,		/* leaf buffer */
+	int			first,		/* first entry to log */
+	int			last)		/* last entry to log */
+{
+	xfs_dir2_leaf_entry_t	*firstlep;	/* pointer to first entry */
+	xfs_dir2_leaf_entry_t	*lastlep;	/* pointer to last entry */
+	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
+
+	leaf = bp->data;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR2_LEAF1_MAGIC ||
+	       INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR2_LEAFN_MAGIC);
+	firstlep = &leaf->ents[first];
+	lastlep = &leaf->ents[last];
+	xfs_da_log_buf(tp, bp, (uint)((char *)firstlep - (char *)leaf),
+		(uint)((char *)lastlep - (char *)leaf + sizeof(*lastlep) - 1));
+}
+
+/*
+ * Log the header of the leaf1 or leafn block.
+ */
+void
+xfs_dir2_leaf_log_header(
+	xfs_trans_t		*tp,		/* transaction pointer */
+	xfs_dabuf_t		*bp)		/* leaf buffer */
+{
+	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
+
+	leaf = bp->data;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR2_LEAF1_MAGIC ||
+	       INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR2_LEAFN_MAGIC);
+	xfs_da_log_buf(tp, bp, (uint)((char *)&leaf->hdr - (char *)leaf),
+		(uint)(sizeof(leaf->hdr) - 1));
+}
+
+/*
+ * Log the tail of the leaf1 block.
+ */
+void
+xfs_dir2_leaf_log_tail(
+	xfs_trans_t		*tp,		/* transaction pointer */
+	xfs_dabuf_t		*bp)		/* leaf buffer */
+{
+	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
+	xfs_dir2_leaf_tail_t	*ltp;		/* leaf tail structure */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+
+	mp = tp->t_mountp;
+	leaf = bp->data;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR2_LEAF1_MAGIC);
+	ltp = XFS_DIR2_LEAF_TAIL_P(mp, leaf);
+	xfs_da_log_buf(tp, bp, (uint)((char *)ltp - (char *)leaf),
+		(uint)(mp->m_dirblksize - 1));
+}
+
+/*
+ * Look up the entry referred to by args in the leaf format directory.
+ * Most of the work is done by the xfs_dir2_leaf_lookup_int routine which
+ * is also used by the node-format code.
+ */
+int
+xfs_dir2_leaf_lookup(
+	xfs_da_args_t		*args)		/* operation arguments */
+{
+	xfs_dabuf_t		*dbp;		/* data block buffer */
+	xfs_dir2_data_entry_t	*dep;		/* data block entry */
+	xfs_inode_t		*dp;		/* incore directory inode */
+	int			error;		/* error return code */
+	int			index;		/* found entry index */
+	xfs_dabuf_t		*lbp;		/* leaf buffer */
+	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
+	xfs_dir2_leaf_entry_t	*lep;		/* leaf entry */
+	xfs_trans_t		*tp;		/* transaction pointer */
+
+	xfs_dir2_trace_args("leaf_lookup", args);
+	/*
+	 * Look up name in the leaf block, returning both buffers and index.
+	 */
+	if ((error = xfs_dir2_leaf_lookup_int(args, &lbp, &index, &dbp))) {
+		return error;
+	}
+	tp = args->trans;
+	dp = args->dp;
+	xfs_dir2_leaf_check(dp, lbp);
+	leaf = lbp->data;
+	/*
+	 * Get to the leaf entry and contained data entry address.
+	 */
+	lep = &leaf->ents[index];
+	/*
+	 * Point to the data entry.
+	 */
+	dep = (xfs_dir2_data_entry_t *)
+	      ((char *)dbp->data +
+	       XFS_DIR2_DATAPTR_TO_OFF(dp->i_mount, INT_GET(lep->address, ARCH_CONVERT)));
+	/*
+	 * Return the found inode number.
+	 */
+	args->inumber = INT_GET(dep->inumber, ARCH_CONVERT);
+	xfs_da_brelse(tp, dbp);
+	xfs_da_brelse(tp, lbp);
+	return XFS_ERROR(EEXIST);
+}
+
+/*
+ * Look up name/hash in the leaf block.
+ * Fill in indexp with the found index, and dbpp with the data buffer.
+ * If not found dbpp will be NULL, and ENOENT comes back.
+ * lbpp will always be filled in with the leaf buffer unless there's an error.
+ */
+static int					/* error */
+xfs_dir2_leaf_lookup_int(
+	xfs_da_args_t		*args,		/* operation arguments */
+	xfs_dabuf_t		**lbpp,		/* out: leaf buffer */
+	int			*indexp,	/* out: index in leaf block */
+	xfs_dabuf_t		**dbpp)		/* out: data buffer */
+{
+	xfs_dir2_db_t		curdb;		/* current data block number */
+	xfs_dabuf_t		*dbp;		/* data buffer */
+	xfs_dir2_data_entry_t	*dep;		/* data entry */
+	xfs_inode_t		*dp;		/* incore directory inode */
+	int			error;		/* error return code */
+	int			index;		/* index in leaf block */
+	xfs_dabuf_t		*lbp;		/* leaf buffer */
+	xfs_dir2_leaf_entry_t	*lep;		/* leaf entry */
+	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+	xfs_dir2_db_t		newdb;		/* new data block number */
+	xfs_trans_t		*tp;		/* transaction pointer */
+
+	dp = args->dp;
+	tp = args->trans;
+	mp = dp->i_mount;
+	/*
+	 * Read the leaf block into the buffer.
+	 */
+	if ((error =
+	    xfs_da_read_buf(tp, dp, mp->m_dirleafblk, -1, &lbp,
+		    XFS_DATA_FORK))) {
+		return error;
+	}
+	*lbpp = lbp;
+	leaf = lbp->data;
+	xfs_dir2_leaf_check(dp, lbp);
+	/*
+	 * Look for the first leaf entry with our hash value.
+	 */
+	index = xfs_dir2_leaf_search_hash(args, lbp);
+	/*
+	 * Loop over all the entries with the right hash value
+	 * looking to match the name.
+	 */
+	for (lep = &leaf->ents[index], dbp = NULL, curdb = -1;
+	     index < INT_GET(leaf->hdr.count, ARCH_CONVERT) && INT_GET(lep->hashval, ARCH_CONVERT) == args->hashval;
+	     lep++, index++) {
+		/*
+		 * Skip over stale leaf entries.
+		 */
+		if (INT_GET(lep->address, ARCH_CONVERT) == XFS_DIR2_NULL_DATAPTR)
+			continue;
+		/*
+		 * Get the new data block number.
+		 */
+		newdb = XFS_DIR2_DATAPTR_TO_DB(mp, INT_GET(lep->address, ARCH_CONVERT));
+		/*
+		 * If it's not the same as the old data block number,
+		 * need to pitch the old one and read the new one.
+		 */
+		if (newdb != curdb) {
+			if (dbp)
+				xfs_da_brelse(tp, dbp);
+			if ((error =
+			    xfs_da_read_buf(tp, dp,
+				    XFS_DIR2_DB_TO_DA(mp, newdb), -1, &dbp,
+				    XFS_DATA_FORK))) {
+				xfs_da_brelse(tp, lbp);
+				return error;
+			}
+			xfs_dir2_data_check(dp, dbp);
+			curdb = newdb;
+		}
+		/*
+		 * Point to the data entry.
+		 */
+		dep = (xfs_dir2_data_entry_t *)
+		      ((char *)dbp->data +
+		       XFS_DIR2_DATAPTR_TO_OFF(mp, INT_GET(lep->address, ARCH_CONVERT)));
+		/*
+		 * If it matches then return it.
+		 */
+		if (dep->namelen == args->namelen &&
+		    dep->name[0] == args->name[0] &&
+		    memcmp(dep->name, args->name, args->namelen) == 0) {
+			*dbpp = dbp;
+			*indexp = index;
+			return 0;
+		}
+	}
+	/*
+	 * No match found, return ENOENT.
+	 */
+	ASSERT(args->oknoent);
+	if (dbp)
+		xfs_da_brelse(tp, dbp);
+	xfs_da_brelse(tp, lbp);
+	return XFS_ERROR(ENOENT);
+}
+
+/*
+ * Remove an entry from a leaf format directory.
+ */
+int						/* error */
+xfs_dir2_leaf_removename(
+	xfs_da_args_t		*args)		/* operation arguments */
+{
+	xfs_dir2_data_off_t	*bestsp;	/* leaf block best freespace */
+	xfs_dir2_data_t		*data;		/* data block structure */
+	xfs_dir2_db_t		db;		/* data block number */
+	xfs_dabuf_t		*dbp;		/* data block buffer */
+	xfs_dir2_data_entry_t	*dep;		/* data entry structure */
+	xfs_inode_t		*dp;		/* incore directory inode */
+	int			error;		/* error return code */
+	xfs_dir2_db_t		i;		/* temporary data block # */
+	int			index;		/* index into leaf entries */
+	xfs_dabuf_t		*lbp;		/* leaf buffer */
+	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
+	xfs_dir2_leaf_entry_t	*lep;		/* leaf entry */
+	xfs_dir2_leaf_tail_t	*ltp;		/* leaf tail structure */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+	int			needlog;	/* need to log data header */
+	int			needscan;	/* need to rescan data frees */
+	xfs_dir2_data_off_t	oldbest;	/* old value of best free */
+	xfs_trans_t		*tp;		/* transaction pointer */
+
+	xfs_dir2_trace_args("leaf_removename", args);
+	/*
+	 * Lookup the leaf entry, get the leaf and data blocks read in.
+	 */
+	if ((error = xfs_dir2_leaf_lookup_int(args, &lbp, &index, &dbp))) {
+		return error;
+	}
+	dp = args->dp;
+	tp = args->trans;
+	mp = dp->i_mount;
+	leaf = lbp->data;
+	data = dbp->data;
+	xfs_dir2_data_check(dp, dbp);
+	/*
+	 * Point to the leaf entry, use that to point to the data entry.
+	 */
+	lep = &leaf->ents[index];
+	db = XFS_DIR2_DATAPTR_TO_DB(mp, INT_GET(lep->address, ARCH_CONVERT));
+	dep = (xfs_dir2_data_entry_t *)
+	      ((char *)data + XFS_DIR2_DATAPTR_TO_OFF(mp, INT_GET(lep->address, ARCH_CONVERT)));
+	needscan = needlog = 0;
+	oldbest = INT_GET(data->hdr.bestfree[0].length, ARCH_CONVERT);
+	ltp = XFS_DIR2_LEAF_TAIL_P(mp, leaf);
+	bestsp = XFS_DIR2_LEAF_BESTS_P_ARCH(ltp, ARCH_CONVERT);
+	ASSERT(INT_GET(bestsp[db], ARCH_CONVERT) == oldbest);
+	/*
+	 * Mark the former data entry unused.
+	 */
+	xfs_dir2_data_make_free(tp, dbp,
+		(xfs_dir2_data_aoff_t)((char *)dep - (char *)data),
+		XFS_DIR2_DATA_ENTSIZE(dep->namelen), &needlog, &needscan);
+	/*
+	 * We just mark the leaf entry stale by putting a null in it.
+	 */
+	INT_MOD(leaf->hdr.stale, ARCH_CONVERT, +1);
+	xfs_dir2_leaf_log_header(tp, lbp);
+	INT_SET(lep->address, ARCH_CONVERT, XFS_DIR2_NULL_DATAPTR);
+	xfs_dir2_leaf_log_ents(tp, lbp, index, index);
+	/*
+	 * Scan the freespace in the data block again if necessary,
+	 * log the data block header if necessary.
+	 */
+	if (needscan)
+		xfs_dir2_data_freescan(mp, data, &needlog, NULL);
+	if (needlog)
+		xfs_dir2_data_log_header(tp, dbp);
+	/*
+	 * If the longest freespace in the data block has changed,
+	 * put the new value in the bests table and log that.
+	 */
+	if (INT_GET(data->hdr.bestfree[0].length, ARCH_CONVERT) != oldbest) {
+		INT_COPY(bestsp[db], data->hdr.bestfree[0].length, ARCH_CONVERT);
+		xfs_dir2_leaf_log_bests(tp, lbp, db, db);
+	}
+	xfs_dir2_data_check(dp, dbp);
+	/*
+	 * If the data block is now empty then get rid of the data block.
+	 */
+	if (INT_GET(data->hdr.bestfree[0].length, ARCH_CONVERT) ==
+	    mp->m_dirblksize - (uint)sizeof(data->hdr)) {
+		ASSERT(db != mp->m_dirdatablk);
+		if ((error = xfs_dir2_shrink_inode(args, db, dbp))) {
+			/*
+			 * Nope, can't get rid of it because it caused
+			 * allocation of a bmap btree block to do so.
+			 * Just go on, returning success, leaving the
+			 * empty block in place.
+			 */
+			if (error == ENOSPC && args->total == 0) {
+				xfs_da_buf_done(dbp);
+				error = 0;
+			}
+			xfs_dir2_leaf_check(dp, lbp);
+			xfs_da_buf_done(lbp);
+			return error;
+		}
+		dbp = NULL;
+		/*
+		 * If this is the last data block then compact the
+		 * bests table by getting rid of entries.
+		 */
+		if (db == INT_GET(ltp->bestcount, ARCH_CONVERT) - 1) {
+			/*
+			 * Look for the last active entry (i).
+			 */
+			for (i = db - 1; i > 0; i--) {
+				if (INT_GET(bestsp[i], ARCH_CONVERT) != NULLDATAOFF)
+					break;
+			}
+			/*
+			 * Copy the table down so inactive entries at the
+			 * end are removed.
+			 */
+			memmove(&bestsp[db - i], bestsp,
+				(INT_GET(ltp->bestcount, ARCH_CONVERT) - (db - i)) * sizeof(*bestsp));
+			INT_MOD(ltp->bestcount, ARCH_CONVERT, -(db - i));
+			xfs_dir2_leaf_log_tail(tp, lbp);
+			xfs_dir2_leaf_log_bests(tp, lbp, 0, INT_GET(ltp->bestcount, ARCH_CONVERT) - 1);
+		} else
+			INT_SET(bestsp[db], ARCH_CONVERT, NULLDATAOFF);
+	}
+	/*
+	 * If the data block was not the first one, drop it.
+	 */
+	else if (db != mp->m_dirdatablk && dbp != NULL) {
+		xfs_da_buf_done(dbp);
+		dbp = NULL;
+	}
+	xfs_dir2_leaf_check(dp, lbp);
+	/*
+	 * See if we can convert to block form.
+	 */
+	return xfs_dir2_leaf_to_block(args, lbp, dbp);
+}
+
+/*
+ * Replace the inode number in a leaf format directory entry.
+ */
+int						/* error */
+xfs_dir2_leaf_replace(
+	xfs_da_args_t		*args)		/* operation arguments */
+{
+	xfs_dabuf_t		*dbp;		/* data block buffer */
+	xfs_dir2_data_entry_t	*dep;		/* data block entry */
+	xfs_inode_t		*dp;		/* incore directory inode */
+	int			error;		/* error return code */
+	int			index;		/* index of leaf entry */
+	xfs_dabuf_t		*lbp;		/* leaf buffer */
+	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
+	xfs_dir2_leaf_entry_t	*lep;		/* leaf entry */
+	xfs_trans_t		*tp;		/* transaction pointer */
+
+	xfs_dir2_trace_args("leaf_replace", args);
+	/*
+	 * Look up the entry.
+	 */
+	if ((error = xfs_dir2_leaf_lookup_int(args, &lbp, &index, &dbp))) {
+		return error;
+	}
+	dp = args->dp;
+	leaf = lbp->data;
+	/*
+	 * Point to the leaf entry, get data address from it.
+	 */
+	lep = &leaf->ents[index];
+	/*
+	 * Point to the data entry.
+	 */
+	dep = (xfs_dir2_data_entry_t *)
+	      ((char *)dbp->data +
+	       XFS_DIR2_DATAPTR_TO_OFF(dp->i_mount, INT_GET(lep->address, ARCH_CONVERT)));
+	ASSERT(args->inumber != INT_GET(dep->inumber, ARCH_CONVERT));
+	/*
+	 * Put the new inode number in, log it.
+	 */
+	INT_SET(dep->inumber, ARCH_CONVERT, args->inumber);
+	tp = args->trans;
+	xfs_dir2_data_log_entry(tp, dbp, dep);
+	xfs_da_buf_done(dbp);
+	xfs_dir2_leaf_check(dp, lbp);
+	xfs_da_brelse(tp, lbp);
+	return 0;
+}
+
+/*
+ * Return index in the leaf block (lbp) which is either the first
+ * one with this hash value, or if there are none, the insert point
+ * for that hash value.
+ */
+int						/* index value */
+xfs_dir2_leaf_search_hash(
+	xfs_da_args_t		*args,		/* operation arguments */
+	xfs_dabuf_t		*lbp)		/* leaf buffer */
+{
+	xfs_dahash_t		hash=0;		/* hash from this entry */
+	xfs_dahash_t		hashwant;	/* hash value looking for */
+	int			high;		/* high leaf index */
+	int			low;		/* low leaf index */
+	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
+	xfs_dir2_leaf_entry_t	*lep;		/* leaf entry */
+	int			mid=0;		/* current leaf index */
+
+	leaf = lbp->data;
+#ifndef __KERNEL__
+	if (INT_ISZERO(leaf->hdr.count, ARCH_CONVERT))
+		return 0;
+#endif
+	/*
+	 * Note, the table cannot be empty, so we have to go through the loop.
+	 * Binary search the leaf entries looking for our hash value.
+	 */
+	for (lep = leaf->ents, low = 0, high = INT_GET(leaf->hdr.count, ARCH_CONVERT) - 1,
+		hashwant = args->hashval;
+	     low <= high; ) {
+		mid = (low + high) >> 1;
+		if ((hash = INT_GET(lep[mid].hashval, ARCH_CONVERT)) == hashwant)
+			break;
+		if (hash < hashwant)
+			low = mid + 1;
+		else
+			high = mid - 1;
+	}
+	/*
+	 * Found one, back up through all the equal hash values.
+	 */
+	if (hash == hashwant) {
+		while (mid > 0 && INT_GET(lep[mid - 1].hashval, ARCH_CONVERT) == hashwant) {
+			mid--;
+		}
+	}
+	/*
+	 * Need to point to an entry higher than ours.
+	 */
+	else if (hash < hashwant)
+		mid++;
+	return mid;
+}
+
+/*
+ * Trim off a trailing data block.  We know it's empty since the leaf
+ * freespace table says so.
+ */
+int						/* error */
+xfs_dir2_leaf_trim_data(
+	xfs_da_args_t		*args,		/* operation arguments */
+	xfs_dabuf_t		*lbp,		/* leaf buffer */
+	xfs_dir2_db_t		db)		/* data block number */
+{
+	xfs_dir2_data_off_t	*bestsp;	/* leaf bests table */
+#ifdef DEBUG
+	xfs_dir2_data_t		*data;		/* data block structure */
+#endif
+	xfs_dabuf_t		*dbp;		/* data block buffer */
+	xfs_inode_t		*dp;		/* incore directory inode */
+	int			error;		/* error return value */
+	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
+	xfs_dir2_leaf_tail_t	*ltp;		/* leaf tail structure */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+	xfs_trans_t		*tp;		/* transaction pointer */
+
+	dp = args->dp;
+	mp = dp->i_mount;
+	tp = args->trans;
+	/*
+	 * Read the offending data block.  We need its buffer.
+	 */
+	if ((error = xfs_da_read_buf(tp, dp, XFS_DIR2_DB_TO_DA(mp, db), -1, &dbp,
+			XFS_DATA_FORK))) {
+		return error;
+	}
+#ifdef DEBUG
+	data = dbp->data;
+	ASSERT(INT_GET(data->hdr.magic, ARCH_CONVERT) == XFS_DIR2_DATA_MAGIC);
+#endif
+	/* this seems to be an error
+	 * data is only valid if DEBUG is defined?
+	 * RMC 09/08/1999
+	 */
+
+	leaf = lbp->data;
+	ltp = XFS_DIR2_LEAF_TAIL_P(mp, leaf);
+	ASSERT(INT_GET(data->hdr.bestfree[0].length, ARCH_CONVERT) ==
+	       mp->m_dirblksize - (uint)sizeof(data->hdr));
+	ASSERT(db == INT_GET(ltp->bestcount, ARCH_CONVERT) - 1);
+	/*
+	 * Get rid of the data block.
+	 */
+	if ((error = xfs_dir2_shrink_inode(args, db, dbp))) {
+		ASSERT(error != ENOSPC);
+		xfs_da_brelse(tp, dbp);
+		return error;
+	}
+	/*
+	 * Eliminate the last bests entry from the table.
+	 */
+	bestsp = XFS_DIR2_LEAF_BESTS_P_ARCH(ltp, ARCH_CONVERT);
+	INT_MOD(ltp->bestcount, ARCH_CONVERT, -1);
+	memmove(&bestsp[1], &bestsp[0], INT_GET(ltp->bestcount, ARCH_CONVERT) * sizeof(*bestsp));
+	xfs_dir2_leaf_log_tail(tp, lbp);
+	xfs_dir2_leaf_log_bests(tp, lbp, 0, INT_GET(ltp->bestcount, ARCH_CONVERT) - 1);
+	return 0;
+}
+
+/*
+ * Convert node form directory to leaf form directory.
+ * The root of the node form dir needs to already be a LEAFN block.
+ * Just return if we can't do anything.
+ */
+int						/* error */
+xfs_dir2_node_to_leaf(
+	xfs_da_state_t		*state)		/* directory operation state */
+{
+	xfs_da_args_t		*args;		/* operation arguments */
+	xfs_inode_t		*dp;		/* incore directory inode */
+	int			error;		/* error return code */
+	xfs_dabuf_t		*fbp;		/* buffer for freespace block */
+	xfs_fileoff_t		fo;		/* freespace file offset */
+	xfs_dir2_free_t		*free;		/* freespace structure */
+	xfs_dabuf_t		*lbp;		/* buffer for leaf block */
+	xfs_dir2_leaf_tail_t	*ltp;		/* tail of leaf structure */
+	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+	int			rval;		/* successful free trim? */
+	xfs_trans_t		*tp;		/* transaction pointer */
+
+	/*
+	 * There's more than a leaf level in the btree, so there must
+	 * be multiple leafn blocks.  Give up.
+	 */
+	if (state->path.active > 1)
+		return 0;
+	args = state->args;
+	xfs_dir2_trace_args("node_to_leaf", args);
+	mp = state->mp;
+	dp = args->dp;
+	tp = args->trans;
+	/*
+	 * Get the last offset in the file.
+	 */
+	if ((error = xfs_bmap_last_offset(tp, dp, &fo, XFS_DATA_FORK))) {
+		return error;
+	}
+	fo -= mp->m_dirblkfsbs;
+	/*
+	 * If there are freespace blocks other than the first one,
+	 * take this opportunity to remove trailing empty freespace blocks
+	 * that may have been left behind during no-space-reservation
+	 * operations.
+	 */
+	while (fo > mp->m_dirfreeblk) {
+		if ((error = xfs_dir2_node_trim_free(args, fo, &rval))) {
+			return error;
+		}
+		if (rval)
+			fo -= mp->m_dirblkfsbs;
+		else
+			return 0;
+	}
+	/*
+	 * Now find the block just before the freespace block.
+	 */
+	if ((error = xfs_bmap_last_before(tp, dp, &fo, XFS_DATA_FORK))) {
+		return error;
+	}
+	/*
+	 * If it's not the single leaf block, give up.
+	 */
+	if (XFS_FSB_TO_B(mp, fo) > XFS_DIR2_LEAF_OFFSET + mp->m_dirblksize)
+		return 0;
+	lbp = state->path.blk[0].bp;
+	leaf = lbp->data;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR2_LEAFN_MAGIC);
+	/*
+	 * Read the freespace block.
+	 */
+	if ((error = xfs_da_read_buf(tp, dp, mp->m_dirfreeblk, -1, &fbp,
+			XFS_DATA_FORK))) {
+		return error;
+	}
+	free = fbp->data;
+	ASSERT(INT_GET(free->hdr.magic, ARCH_CONVERT) == XFS_DIR2_FREE_MAGIC);
+	ASSERT(INT_ISZERO(free->hdr.firstdb, ARCH_CONVERT));
+	/*
+	 * Now see if the leafn and free data will fit in a leaf1.
+	 * If not, release the buffer and give up.
+	 */
+	if ((uint)sizeof(leaf->hdr) +
+	    (INT_GET(leaf->hdr.count, ARCH_CONVERT) - INT_GET(leaf->hdr.stale, ARCH_CONVERT)) * (uint)sizeof(leaf->ents[0]) +
+	    INT_GET(free->hdr.nvalid, ARCH_CONVERT) * (uint)sizeof(leaf->bests[0]) +
+	    (uint)sizeof(leaf->tail) >
+	    mp->m_dirblksize) {
+		xfs_da_brelse(tp, fbp);
+		return 0;
+	}
+	/*
+	 * If the leaf has any stale entries in it, compress them out.
+	 * The compact routine will log the header.
+	 */
+	if (INT_GET(leaf->hdr.stale, ARCH_CONVERT))
+		xfs_dir2_leaf_compact(args, lbp);
+	else
+		xfs_dir2_leaf_log_header(tp, lbp);
+	INT_SET(leaf->hdr.info.magic, ARCH_CONVERT, XFS_DIR2_LEAF1_MAGIC);
+	/*
+	 * Set up the leaf tail from the freespace block.
+	 */
+	ltp = XFS_DIR2_LEAF_TAIL_P(mp, leaf);
+	INT_COPY(ltp->bestcount, free->hdr.nvalid, ARCH_CONVERT);
+	/*
+	 * Set up the leaf bests table.
+	 */
+	memcpy(XFS_DIR2_LEAF_BESTS_P_ARCH(ltp, ARCH_CONVERT), free->bests,
+		INT_GET(ltp->bestcount, ARCH_CONVERT) * sizeof(leaf->bests[0]));
+	xfs_dir2_leaf_log_bests(tp, lbp, 0, INT_GET(ltp->bestcount, ARCH_CONVERT) - 1);
+	xfs_dir2_leaf_log_tail(tp, lbp);
+	xfs_dir2_leaf_check(dp, lbp);
+	/*
+	 * Get rid of the freespace block.
+	 */
+	error = xfs_dir2_shrink_inode(args, XFS_DIR2_FREE_FIRSTDB(mp), fbp);
+	if (error) {
+		/*
+		 * This can't fail here because it can only happen when
+		 * punching out the middle of an extent, and this is an
+		 * isolated block.
+		 */
+		ASSERT(error != ENOSPC);
+		return error;
+	}
+	fbp = NULL;
+	/*
+	 * Now see if we can convert the single-leaf directory
+	 * down to a block form directory.
+	 * This routine always kills the dabuf for the leaf, so
+	 * eliminate it from the path.
+	 */
+	error = xfs_dir2_leaf_to_block(args, lbp, NULL);
+	state->path.blk[0].bp = NULL;
+	return error;
+}
diff --git a/fs/xfs/xfs_dir2_leaf.h b/fs/xfs/xfs_dir2_leaf.h
new file mode 100644
index 00000000000000..d3b5145a9b4f17
--- /dev/null
+++ b/fs/xfs/xfs_dir2_leaf.h
@@ -0,0 +1,360 @@
+/*
+ * Copyright (c) 2000-2001 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_DIR2_LEAF_H__
+#define	__XFS_DIR2_LEAF_H__
+
+/*
+ * Directory version 2, leaf block structures.
+ */
+
+struct uio;
+struct xfs_dabuf;
+struct xfs_da_args;
+struct xfs_inode;
+struct xfs_mount;
+struct xfs_trans;
+
+/*
+ * Constants.
+ */
+
+/*
+ * Offset of the leaf/node space.  First block in this space
+ * is the btree root.
+ */
+#define	XFS_DIR2_LEAF_SPACE	1
+#define	XFS_DIR2_LEAF_OFFSET	(XFS_DIR2_LEAF_SPACE * XFS_DIR2_SPACE_SIZE)
+#define	XFS_DIR2_LEAF_FIRSTDB(mp)	\
+	XFS_DIR2_BYTE_TO_DB(mp, XFS_DIR2_LEAF_OFFSET)
+
+/*
+ * Types.
+ */
+
+/*
+ * Offset in data space of a data entry.
+ */
+typedef	__uint32_t	xfs_dir2_dataptr_t;
+#define	XFS_DIR2_MAX_DATAPTR	((xfs_dir2_dataptr_t)0xffffffff)
+#define	XFS_DIR2_NULL_DATAPTR	((xfs_dir2_dataptr_t)0)
+
+/*
+ * Structures.
+ */
+
+/*
+ * Leaf block header.
+ */
+typedef struct xfs_dir2_leaf_hdr {
+	xfs_da_blkinfo_t	info;		/* header for da routines */
+	__uint16_t		count;		/* count of entries */
+	__uint16_t		stale;		/* count of stale entries */
+} xfs_dir2_leaf_hdr_t;
+
+/*
+ * Leaf block entry.
+ */
+typedef struct xfs_dir2_leaf_entry {
+	xfs_dahash_t		hashval;	/* hash value of name */
+	xfs_dir2_dataptr_t	address;	/* address of data entry */
+} xfs_dir2_leaf_entry_t;
+
+/*
+ * Leaf block tail.
+ */
+typedef struct xfs_dir2_leaf_tail {
+	__uint32_t		bestcount;
+} xfs_dir2_leaf_tail_t;
+
+/*
+ * Leaf block.
+ * bests and tail are at the end of the block for single-leaf only
+ * (magic = XFS_DIR2_LEAF1_MAGIC not XFS_DIR2_LEAFN_MAGIC).
+ */
+typedef struct xfs_dir2_leaf {
+	xfs_dir2_leaf_hdr_t	hdr;		/* leaf header */
+	xfs_dir2_leaf_entry_t	ents[1];	/* entries */
+						/* ... */
+	xfs_dir2_data_off_t	bests[1];	/* best free counts */
+	xfs_dir2_leaf_tail_t	tail;		/* leaf tail */
+} xfs_dir2_leaf_t;
+
+/*
+ * Macros.
+ * The DB blocks are logical directory block numbers, not filesystem blocks.
+ */
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_MAX_LEAF_ENTS)
+int
+xfs_dir2_max_leaf_ents(struct xfs_mount *mp);
+#define	XFS_DIR2_MAX_LEAF_ENTS(mp)	\
+	xfs_dir2_max_leaf_ents(mp)
+#else
+#define	XFS_DIR2_MAX_LEAF_ENTS(mp)	\
+	((int)(((mp)->m_dirblksize - (uint)sizeof(xfs_dir2_leaf_hdr_t)) / \
+	       (uint)sizeof(xfs_dir2_leaf_entry_t)))
+#endif
+
+/*
+ * Get address of the bestcount field in the single-leaf block.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_LEAF_TAIL_P)
+xfs_dir2_leaf_tail_t *
+xfs_dir2_leaf_tail_p(struct xfs_mount *mp, xfs_dir2_leaf_t *lp);
+#define	XFS_DIR2_LEAF_TAIL_P(mp,lp)	\
+	xfs_dir2_leaf_tail_p(mp, lp)
+#else
+#define	XFS_DIR2_LEAF_TAIL_P(mp,lp)	\
+	((xfs_dir2_leaf_tail_t *)\
+	 ((char *)(lp) + (mp)->m_dirblksize - \
+	  (uint)sizeof(xfs_dir2_leaf_tail_t)))
+#endif
+
+/*
+ * Get address of the bests array in the single-leaf block.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_LEAF_BESTS_P)
+xfs_dir2_data_off_t *
+xfs_dir2_leaf_bests_p_arch(xfs_dir2_leaf_tail_t *ltp, xfs_arch_t arch);
+#define	XFS_DIR2_LEAF_BESTS_P_ARCH(ltp,arch)	xfs_dir2_leaf_bests_p_arch(ltp,arch)
+#else
+#define	XFS_DIR2_LEAF_BESTS_P_ARCH(ltp,arch)	\
+	((xfs_dir2_data_off_t *)(ltp) - INT_GET((ltp)->bestcount, arch))
+#endif
+
+/*
+ * Convert dataptr to byte in file space
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_DATAPTR_TO_BYTE)
+xfs_dir2_off_t
+xfs_dir2_dataptr_to_byte(struct xfs_mount *mp, xfs_dir2_dataptr_t dp);
+#define	XFS_DIR2_DATAPTR_TO_BYTE(mp,dp)	xfs_dir2_dataptr_to_byte(mp, dp)
+#else
+#define	XFS_DIR2_DATAPTR_TO_BYTE(mp,dp)	\
+	((xfs_dir2_off_t)(dp) << XFS_DIR2_DATA_ALIGN_LOG)
+#endif
+
+/*
+ * Convert byte in file space to dataptr.  It had better be aligned.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_BYTE_TO_DATAPTR)
+xfs_dir2_dataptr_t
+xfs_dir2_byte_to_dataptr(struct xfs_mount *mp, xfs_dir2_off_t by);
+#define	XFS_DIR2_BYTE_TO_DATAPTR(mp,by)	xfs_dir2_byte_to_dataptr(mp,by)
+#else
+#define	XFS_DIR2_BYTE_TO_DATAPTR(mp,by)	\
+	((xfs_dir2_dataptr_t)((by) >> XFS_DIR2_DATA_ALIGN_LOG))
+#endif
+
+/*
+ * Convert dataptr to a block number
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_DATAPTR_TO_DB)
+xfs_dir2_db_t
+xfs_dir2_dataptr_to_db(struct xfs_mount *mp, xfs_dir2_dataptr_t dp);
+#define	XFS_DIR2_DATAPTR_TO_DB(mp,dp)	xfs_dir2_dataptr_to_db(mp, dp)
+#else
+#define	XFS_DIR2_DATAPTR_TO_DB(mp,dp)	\
+	XFS_DIR2_BYTE_TO_DB(mp, XFS_DIR2_DATAPTR_TO_BYTE(mp, dp))
+#endif
+
+/*
+ * Convert dataptr to a byte offset in a block
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_DATAPTR_TO_OFF)
+xfs_dir2_data_aoff_t
+xfs_dir2_dataptr_to_off(struct xfs_mount *mp, xfs_dir2_dataptr_t dp);
+#define	XFS_DIR2_DATAPTR_TO_OFF(mp,dp)	xfs_dir2_dataptr_to_off(mp, dp)
+#else
+#define	XFS_DIR2_DATAPTR_TO_OFF(mp,dp)	\
+	XFS_DIR2_BYTE_TO_OFF(mp, XFS_DIR2_DATAPTR_TO_BYTE(mp, dp))
+#endif
+
+/*
+ * Convert block and offset to byte in space
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_DB_OFF_TO_BYTE)
+xfs_dir2_off_t
+xfs_dir2_db_off_to_byte(struct xfs_mount *mp, xfs_dir2_db_t db,
+			xfs_dir2_data_aoff_t o);
+#define	XFS_DIR2_DB_OFF_TO_BYTE(mp,db,o)	\
+	xfs_dir2_db_off_to_byte(mp, db, o)
+#else
+#define	XFS_DIR2_DB_OFF_TO_BYTE(mp,db,o)	\
+	(((xfs_dir2_off_t)(db) << \
+	 ((mp)->m_sb.sb_blocklog + (mp)->m_sb.sb_dirblklog)) + (o))
+#endif
+
+/*
+ * Convert byte in space to (DB) block
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_BYTE_TO_DB)
+xfs_dir2_db_t xfs_dir2_byte_to_db(struct xfs_mount *mp, xfs_dir2_off_t by);
+#define	XFS_DIR2_BYTE_TO_DB(mp,by)	xfs_dir2_byte_to_db(mp, by)
+#else
+#define	XFS_DIR2_BYTE_TO_DB(mp,by)	\
+	((xfs_dir2_db_t)((by) >> \
+			 ((mp)->m_sb.sb_blocklog + (mp)->m_sb.sb_dirblklog)))
+#endif
+
+/*
+ * Convert byte in space to (DA) block
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_BYTE_TO_DA)
+xfs_dablk_t xfs_dir2_byte_to_da(struct xfs_mount *mp, xfs_dir2_off_t by);
+#define	XFS_DIR2_BYTE_TO_DA(mp,by)	xfs_dir2_byte_to_da(mp, by)
+#else
+#define	XFS_DIR2_BYTE_TO_DA(mp,by)	\
+	XFS_DIR2_DB_TO_DA(mp, XFS_DIR2_BYTE_TO_DB(mp, by))
+#endif
+
+/*
+ * Convert byte in space to offset in a block
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_BYTE_TO_OFF)
+xfs_dir2_data_aoff_t
+xfs_dir2_byte_to_off(struct xfs_mount *mp, xfs_dir2_off_t by);
+#define	XFS_DIR2_BYTE_TO_OFF(mp,by)	xfs_dir2_byte_to_off(mp, by)
+#else
+#define	XFS_DIR2_BYTE_TO_OFF(mp,by)	\
+	((xfs_dir2_data_aoff_t)((by) & \
+				((1 << ((mp)->m_sb.sb_blocklog + \
+					(mp)->m_sb.sb_dirblklog)) - 1)))
+#endif
+
+/*
+ * Convert block and offset to dataptr
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_DB_OFF_TO_DATAPTR)
+xfs_dir2_dataptr_t
+xfs_dir2_db_off_to_dataptr(struct xfs_mount *mp, xfs_dir2_db_t db,
+			   xfs_dir2_data_aoff_t o);
+#define	XFS_DIR2_DB_OFF_TO_DATAPTR(mp,db,o)	\
+	xfs_dir2_db_off_to_dataptr(mp, db, o)
+#else
+#define	XFS_DIR2_DB_OFF_TO_DATAPTR(mp,db,o)	\
+	XFS_DIR2_BYTE_TO_DATAPTR(mp, XFS_DIR2_DB_OFF_TO_BYTE(mp, db, o))
+#endif
+
+/*
+ * Convert block (DB) to block (dablk)
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_DB_TO_DA)
+xfs_dablk_t xfs_dir2_db_to_da(struct xfs_mount *mp, xfs_dir2_db_t db);
+#define	XFS_DIR2_DB_TO_DA(mp,db)	xfs_dir2_db_to_da(mp, db)
+#else
+#define	XFS_DIR2_DB_TO_DA(mp,db)	\
+	((xfs_dablk_t)((db) << (mp)->m_sb.sb_dirblklog))
+#endif
+
+/*
+ * Convert block (dablk) to block (DB)
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_DA_TO_DB)
+xfs_dir2_db_t xfs_dir2_da_to_db(struct xfs_mount *mp, xfs_dablk_t da);
+#define	XFS_DIR2_DA_TO_DB(mp,da)	xfs_dir2_da_to_db(mp, da)
+#else
+#define	XFS_DIR2_DA_TO_DB(mp,da)	\
+	((xfs_dir2_db_t)((da) >> (mp)->m_sb.sb_dirblklog))
+#endif
+
+/*
+ * Convert block (dablk) to byte offset in space
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_DA_TO_BYTE)
+xfs_dir2_off_t xfs_dir2_da_to_byte(struct xfs_mount *mp, xfs_dablk_t da);
+#define XFS_DIR2_DA_TO_BYTE(mp,da)	xfs_dir2_da_to_byte(mp, da)
+#else
+#define	XFS_DIR2_DA_TO_BYTE(mp,da)	\
+	XFS_DIR2_DB_OFF_TO_BYTE(mp, XFS_DIR2_DA_TO_DB(mp, da), 0)
+#endif
+
+/*
+ * Function declarations.
+ */
+
+extern int
+	xfs_dir2_block_to_leaf(struct xfs_da_args *args, struct xfs_dabuf *dbp);
+
+extern int
+	xfs_dir2_leaf_addname(struct xfs_da_args *args);
+
+extern void
+	xfs_dir2_leaf_compact(struct xfs_da_args *args, struct xfs_dabuf *bp);
+
+extern void
+	xfs_dir2_leaf_compact_x1(struct xfs_dabuf *bp, int *indexp,
+				 int *lowstalep, int *highstalep, int *lowlogp,
+				 int *highlogp);
+
+extern int
+	xfs_dir2_leaf_getdents(struct xfs_trans *tp, struct xfs_inode *dp,
+			       struct uio *uio, int *eofp, struct xfs_dirent *dbp,
+			       xfs_dir2_put_t put);
+
+extern int
+	xfs_dir2_leaf_init(struct xfs_da_args *args, xfs_dir2_db_t bno,
+			   struct xfs_dabuf **bpp, int magic);
+
+extern void
+	xfs_dir2_leaf_log_ents(struct xfs_trans *tp, struct xfs_dabuf *bp,
+			       int first, int last);
+
+extern void
+	xfs_dir2_leaf_log_bests(struct xfs_trans *tp, struct xfs_dabuf *bp,
+				int first, int last);
+
+extern void
+	xfs_dir2_leaf_log_header(struct xfs_trans *tp, struct xfs_dabuf *bp);
+
+extern void
+	xfs_dir2_leaf_log_tail(struct xfs_trans *tp, struct xfs_dabuf *bp);
+
+extern int
+	xfs_dir2_leaf_lookup(struct xfs_da_args *args);
+
+extern int
+	xfs_dir2_leaf_removename(struct xfs_da_args *args);
+
+extern int
+	xfs_dir2_leaf_replace(struct xfs_da_args *args);
+
+extern int
+	xfs_dir2_leaf_search_hash(struct xfs_da_args *args,
+				  struct xfs_dabuf *lbp);
+extern int
+	xfs_dir2_leaf_trim_data(struct xfs_da_args *args, struct xfs_dabuf *lbp,				xfs_dir2_db_t db);
+
+extern int
+	xfs_dir2_node_to_leaf(struct xfs_da_state *state);
+
+#endif	/* __XFS_DIR2_LEAF_H__ */
diff --git a/fs/xfs/xfs_dir2_node.c b/fs/xfs/xfs_dir2_node.c
new file mode 100644
index 00000000000000..ec42931d049877
--- /dev/null
+++ b/fs/xfs/xfs_dir2_node.c
@@ -0,0 +1,2020 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+/*
+ * xfs_dir2_node.c
+ * XFS directory implementation, version 2, node form files
+ * See data structures in xfs_dir2_node.h and xfs_da_btree.h.
+ */
+
+#include "xfs.h"
+
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_da_btree.h"
+#include "xfs_dir2_data.h"
+#include "xfs_dir2_leaf.h"
+#include "xfs_dir2_block.h"
+#include "xfs_dir2_node.h"
+#include "xfs_dir2_trace.h"
+#include "xfs_error.h"
+
+/*
+ * Function declarations.
+ */
+static void xfs_dir2_free_log_header(xfs_trans_t *tp, xfs_dabuf_t *bp);
+static int xfs_dir2_leafn_add(xfs_dabuf_t *bp, xfs_da_args_t *args, int index);
+#ifdef DEBUG
+static void xfs_dir2_leafn_check(xfs_inode_t *dp, xfs_dabuf_t *bp);
+#else
+#define	xfs_dir2_leafn_check(dp, bp)
+#endif
+static void xfs_dir2_leafn_moveents(xfs_da_args_t *args, xfs_dabuf_t *bp_s,
+				    int start_s, xfs_dabuf_t *bp_d, int start_d,
+				    int count);
+static void xfs_dir2_leafn_rebalance(xfs_da_state_t *state,
+				     xfs_da_state_blk_t *blk1,
+				     xfs_da_state_blk_t *blk2);
+static int xfs_dir2_leafn_remove(xfs_da_args_t *args, xfs_dabuf_t *bp,
+				 int index, xfs_da_state_blk_t *dblk,
+				 int *rval);
+static int xfs_dir2_node_addname_int(xfs_da_args_t *args,
+				     xfs_da_state_blk_t *fblk);
+
+/*
+ * Log entries from a freespace block.
+ */
+void
+xfs_dir2_free_log_bests(
+	xfs_trans_t		*tp,		/* transaction pointer */
+	xfs_dabuf_t		*bp,		/* freespace buffer */
+	int			first,		/* first entry to log */
+	int			last)		/* last entry to log */
+{
+	xfs_dir2_free_t		*free;		/* freespace structure */
+
+	free = bp->data;
+	ASSERT(INT_GET(free->hdr.magic, ARCH_CONVERT) == XFS_DIR2_FREE_MAGIC);
+	xfs_da_log_buf(tp, bp,
+		(uint)((char *)&free->bests[first] - (char *)free),
+		(uint)((char *)&free->bests[last] - (char *)free +
+		       sizeof(free->bests[0]) - 1));
+}
+
+/*
+ * Log header from a freespace block.
+ */
+static void
+xfs_dir2_free_log_header(
+	xfs_trans_t		*tp,		/* transaction pointer */
+	xfs_dabuf_t		*bp)		/* freespace buffer */
+{
+	xfs_dir2_free_t		*free;		/* freespace structure */
+
+	free = bp->data;
+	ASSERT(INT_GET(free->hdr.magic, ARCH_CONVERT) == XFS_DIR2_FREE_MAGIC);
+	xfs_da_log_buf(tp, bp, (uint)((char *)&free->hdr - (char *)free),
+		(uint)(sizeof(xfs_dir2_free_hdr_t) - 1));
+}
+
+/*
+ * Convert a leaf-format directory to a node-format directory.
+ * We need to change the magic number of the leaf block, and copy
+ * the freespace table out of the leaf block into its own block.
+ */
+int						/* error */
+xfs_dir2_leaf_to_node(
+	xfs_da_args_t		*args,		/* operation arguments */
+	xfs_dabuf_t		*lbp)		/* leaf buffer */
+{
+	xfs_inode_t		*dp;		/* incore directory inode */
+	int			error;		/* error return value */
+	xfs_dabuf_t		*fbp;		/* freespace buffer */
+	xfs_dir2_db_t		fdb;		/* freespace block number */
+	xfs_dir2_free_t		*free;		/* freespace structure */
+	xfs_dir2_data_off_t	*from;		/* pointer to freespace entry */
+	int			i;		/* leaf freespace index */
+	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
+	xfs_dir2_leaf_tail_t	*ltp;		/* leaf tail structure */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+	int			n;		/* count of live freespc ents */
+	xfs_dir2_data_off_t	off;		/* freespace entry value */
+	xfs_dir2_data_off_t	*to;		/* pointer to freespace entry */
+	xfs_trans_t		*tp;		/* transaction pointer */
+
+	xfs_dir2_trace_args_b("leaf_to_node", args, lbp);
+	dp = args->dp;
+	mp = dp->i_mount;
+	tp = args->trans;
+	/*
+	 * Add a freespace block to the directory.
+	 */
+	if ((error = xfs_dir2_grow_inode(args, XFS_DIR2_FREE_SPACE, &fdb))) {
+		return error;
+	}
+	ASSERT(fdb == XFS_DIR2_FREE_FIRSTDB(mp));
+	/*
+	 * Get the buffer for the new freespace block.
+	 */
+	if ((error = xfs_da_get_buf(tp, dp, XFS_DIR2_DB_TO_DA(mp, fdb), -1, &fbp,
+			XFS_DATA_FORK))) {
+		return error;
+	}
+	ASSERT(fbp != NULL);
+	free = fbp->data;
+	leaf = lbp->data;
+	ltp = XFS_DIR2_LEAF_TAIL_P(mp, leaf);
+	/*
+	 * Initialize the freespace block header.
+	 */
+	INT_SET(free->hdr.magic, ARCH_CONVERT, XFS_DIR2_FREE_MAGIC);
+	INT_ZERO(free->hdr.firstdb, ARCH_CONVERT);
+	ASSERT(INT_GET(ltp->bestcount, ARCH_CONVERT) <= (uint)dp->i_d.di_size / mp->m_dirblksize);
+	INT_COPY(free->hdr.nvalid, ltp->bestcount, ARCH_CONVERT);
+	/*
+	 * Copy freespace entries from the leaf block to the new block.
+	 * Count active entries.
+	 */
+	for (i = n = 0, from = XFS_DIR2_LEAF_BESTS_P_ARCH(ltp, ARCH_CONVERT), to = free->bests;
+	     i < INT_GET(ltp->bestcount, ARCH_CONVERT); i++, from++, to++) {
+		if ((off = INT_GET(*from, ARCH_CONVERT)) != NULLDATAOFF)
+			n++;
+		INT_SET(*to, ARCH_CONVERT, off);
+	}
+	INT_SET(free->hdr.nused, ARCH_CONVERT, n);
+	INT_SET(leaf->hdr.info.magic, ARCH_CONVERT, XFS_DIR2_LEAFN_MAGIC);
+	/*
+	 * Log everything.
+	 */
+	xfs_dir2_leaf_log_header(tp, lbp);
+	xfs_dir2_free_log_header(tp, fbp);
+	xfs_dir2_free_log_bests(tp, fbp, 0, INT_GET(free->hdr.nvalid, ARCH_CONVERT) - 1);
+	xfs_da_buf_done(fbp);
+	xfs_dir2_leafn_check(dp, lbp);
+	return 0;
+}
+
+/*
+ * Add a leaf entry to a leaf block in a node-form directory.
+ * The other work necessary is done from the caller.
+ */
+static int					/* error */
+xfs_dir2_leafn_add(
+	xfs_dabuf_t		*bp,		/* leaf buffer */
+	xfs_da_args_t		*args,		/* operation arguments */
+	int			index)		/* insertion pt for new entry */
+{
+	int			compact;	/* compacting stale leaves */
+	xfs_inode_t		*dp;		/* incore directory inode */
+	int			highstale;	/* next stale entry */
+	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
+	xfs_dir2_leaf_entry_t	*lep;		/* leaf entry */
+	int			lfloghigh;	/* high leaf entry logging */
+	int			lfloglow;	/* low leaf entry logging */
+	int			lowstale;	/* previous stale entry */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+	xfs_trans_t		*tp;		/* transaction pointer */
+
+	xfs_dir2_trace_args_sb("leafn_add", args, index, bp);
+	dp = args->dp;
+	mp = dp->i_mount;
+	tp = args->trans;
+	leaf = bp->data;
+
+	/*
+	 * Quick check just to make sure we are not going to index
+	 * into other peoples memory
+	 */
+	if (index < 0)
+		return XFS_ERROR(EFSCORRUPTED);
+
+	/*
+	 * If there are already the maximum number of leaf entries in
+	 * the block, if there are no stale entries it won't fit.
+	 * Caller will do a split.  If there are stale entries we'll do
+	 * a compact.
+	 */
+
+	if (INT_GET(leaf->hdr.count, ARCH_CONVERT) == XFS_DIR2_MAX_LEAF_ENTS(mp)) {
+		if (INT_ISZERO(leaf->hdr.stale, ARCH_CONVERT))
+			return XFS_ERROR(ENOSPC);
+		compact = INT_GET(leaf->hdr.stale, ARCH_CONVERT) > 1;
+	} else
+		compact = 0;
+	ASSERT(index == 0 || INT_GET(leaf->ents[index - 1].hashval, ARCH_CONVERT) <= args->hashval);
+	ASSERT(index == INT_GET(leaf->hdr.count, ARCH_CONVERT) ||
+	       INT_GET(leaf->ents[index].hashval, ARCH_CONVERT) >= args->hashval);
+
+	if (args->justcheck)
+		return 0;
+
+	/*
+	 * Compact out all but one stale leaf entry.  Leaves behind
+	 * the entry closest to index.
+	 */
+	if (compact) {
+		xfs_dir2_leaf_compact_x1(bp, &index, &lowstale, &highstale,
+			&lfloglow, &lfloghigh);
+	}
+	/*
+	 * Set impossible logging indices for this case.
+	 */
+	else if (!INT_ISZERO(leaf->hdr.stale, ARCH_CONVERT)) {
+		lfloglow = INT_GET(leaf->hdr.count, ARCH_CONVERT);
+		lfloghigh = -1;
+	}
+	/*
+	 * No stale entries, just insert a space for the new entry.
+	 */
+	if (INT_ISZERO(leaf->hdr.stale, ARCH_CONVERT)) {
+		lep = &leaf->ents[index];
+		if (index < INT_GET(leaf->hdr.count, ARCH_CONVERT))
+			memmove(lep + 1, lep,
+				(INT_GET(leaf->hdr.count, ARCH_CONVERT) - index) * sizeof(*lep));
+		lfloglow = index;
+		lfloghigh = INT_GET(leaf->hdr.count, ARCH_CONVERT);
+		INT_MOD(leaf->hdr.count, ARCH_CONVERT, +1);
+	}
+	/*
+	 * There are stale entries.  We'll use one for the new entry.
+	 */
+	else {
+		/*
+		 * If we didn't do a compact then we need to figure out
+		 * which stale entry will be used.
+		 */
+		if (compact == 0) {
+			/*
+			 * Find first stale entry before our insertion point.
+			 */
+			for (lowstale = index - 1;
+			     lowstale >= 0 &&
+				INT_GET(leaf->ents[lowstale].address, ARCH_CONVERT) !=
+				XFS_DIR2_NULL_DATAPTR;
+			     lowstale--)
+				continue;
+			/*
+			 * Find next stale entry after insertion point.
+			 * Stop looking if the answer would be worse than
+			 * lowstale already found.
+			 */
+			for (highstale = index;
+			     highstale < INT_GET(leaf->hdr.count, ARCH_CONVERT) &&
+				INT_GET(leaf->ents[highstale].address, ARCH_CONVERT) !=
+				XFS_DIR2_NULL_DATAPTR &&
+				(lowstale < 0 ||
+				 index - lowstale - 1 >= highstale - index);
+			     highstale++)
+				continue;
+		}
+		/*
+		 * Using the low stale entry.
+		 * Shift entries up toward the stale slot.
+		 */
+		if (lowstale >= 0 &&
+		    (highstale == INT_GET(leaf->hdr.count, ARCH_CONVERT) ||
+		     index - lowstale - 1 < highstale - index)) {
+			ASSERT(INT_GET(leaf->ents[lowstale].address, ARCH_CONVERT) ==
+			       XFS_DIR2_NULL_DATAPTR);
+			ASSERT(index - lowstale - 1 >= 0);
+			if (index - lowstale - 1 > 0)
+				memmove(&leaf->ents[lowstale],
+					&leaf->ents[lowstale + 1],
+					(index - lowstale - 1) * sizeof(*lep));
+			lep = &leaf->ents[index - 1];
+			lfloglow = MIN(lowstale, lfloglow);
+			lfloghigh = MAX(index - 1, lfloghigh);
+		}
+		/*
+		 * Using the high stale entry.
+		 * Shift entries down toward the stale slot.
+		 */
+		else {
+			ASSERT(INT_GET(leaf->ents[highstale].address, ARCH_CONVERT) ==
+			       XFS_DIR2_NULL_DATAPTR);
+			ASSERT(highstale - index >= 0);
+			if (highstale - index > 0)
+				memmove(&leaf->ents[index + 1],
+					&leaf->ents[index],
+					(highstale - index) * sizeof(*lep));
+			lep = &leaf->ents[index];
+			lfloglow = MIN(index, lfloglow);
+			lfloghigh = MAX(highstale, lfloghigh);
+		}
+		INT_MOD(leaf->hdr.stale, ARCH_CONVERT, -1);
+	}
+	/*
+	 * Insert the new entry, log everything.
+	 */
+	INT_SET(lep->hashval, ARCH_CONVERT, args->hashval);
+	INT_SET(lep->address, ARCH_CONVERT, XFS_DIR2_DB_OFF_TO_DATAPTR(mp, args->blkno, args->index));
+	xfs_dir2_leaf_log_header(tp, bp);
+	xfs_dir2_leaf_log_ents(tp, bp, lfloglow, lfloghigh);
+	xfs_dir2_leafn_check(dp, bp);
+	return 0;
+}
+
+#ifdef DEBUG
+/*
+ * Check internal consistency of a leafn block.
+ */
+void
+xfs_dir2_leafn_check(
+	xfs_inode_t	*dp,			/* incore directory inode */
+	xfs_dabuf_t	*bp)			/* leaf buffer */
+{
+	int		i;			/* leaf index */
+	xfs_dir2_leaf_t	*leaf;			/* leaf structure */
+	xfs_mount_t	*mp;			/* filesystem mount point */
+	int		stale;			/* count of stale leaves */
+
+	leaf = bp->data;
+	mp = dp->i_mount;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR2_LEAFN_MAGIC);
+	ASSERT(INT_GET(leaf->hdr.count, ARCH_CONVERT) <= XFS_DIR2_MAX_LEAF_ENTS(mp));
+	for (i = stale = 0; i < INT_GET(leaf->hdr.count, ARCH_CONVERT); i++) {
+		if (i + 1 < INT_GET(leaf->hdr.count, ARCH_CONVERT)) {
+			ASSERT(INT_GET(leaf->ents[i].hashval, ARCH_CONVERT) <=
+			       INT_GET(leaf->ents[i + 1].hashval, ARCH_CONVERT));
+		}
+		if (INT_GET(leaf->ents[i].address, ARCH_CONVERT) == XFS_DIR2_NULL_DATAPTR)
+			stale++;
+	}
+	ASSERT(INT_GET(leaf->hdr.stale, ARCH_CONVERT) == stale);
+}
+#endif	/* DEBUG */
+
+/*
+ * Return the last hash value in the leaf.
+ * Stale entries are ok.
+ */
+xfs_dahash_t					/* hash value */
+xfs_dir2_leafn_lasthash(
+	xfs_dabuf_t	*bp,			/* leaf buffer */
+	int		*count)			/* count of entries in leaf */
+{
+	xfs_dir2_leaf_t	*leaf;			/* leaf structure */
+
+	leaf = bp->data;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR2_LEAFN_MAGIC);
+	if (count)
+		*count = INT_GET(leaf->hdr.count, ARCH_CONVERT);
+	if (INT_ISZERO(leaf->hdr.count, ARCH_CONVERT))
+		return 0;
+	return INT_GET(leaf->ents[INT_GET(leaf->hdr.count, ARCH_CONVERT) - 1].hashval, ARCH_CONVERT);
+}
+
+/*
+ * Look up a leaf entry in a node-format leaf block.
+ * If this is an addname then the extrablk in state is a freespace block,
+ * otherwise it's a data block.
+ */
+int
+xfs_dir2_leafn_lookup_int(
+	xfs_dabuf_t		*bp,		/* leaf buffer */
+	xfs_da_args_t		*args,		/* operation arguments */
+	int			*indexp,	/* out: leaf entry index */
+	xfs_da_state_t		*state)		/* state to fill in */
+{
+	xfs_dabuf_t		*curbp;		/* current data/free buffer */
+	xfs_dir2_db_t		curdb;		/* current data block number */
+	xfs_dir2_db_t		curfdb;		/* current free block number */
+	xfs_dir2_data_entry_t	*dep;		/* data block entry */
+	xfs_inode_t		*dp;		/* incore directory inode */
+	int			error;		/* error return value */
+	int			fi;		/* free entry index */
+	xfs_dir2_free_t		*free=NULL;	/* free block structure */
+	int			index;		/* leaf entry index */
+	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
+	int			length=0;	/* length of new data entry */
+	xfs_dir2_leaf_entry_t	*lep;		/* leaf entry */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+	xfs_dir2_db_t		newdb;		/* new data block number */
+	xfs_dir2_db_t		newfdb;		/* new free block number */
+	xfs_trans_t		*tp;		/* transaction pointer */
+
+	dp = args->dp;
+	tp = args->trans;
+	mp = dp->i_mount;
+	leaf = bp->data;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR2_LEAFN_MAGIC);
+#ifdef __KERNEL__
+	ASSERT(INT_GET(leaf->hdr.count, ARCH_CONVERT) > 0);
+#endif
+	xfs_dir2_leafn_check(dp, bp);
+	/*
+	 * Look up the hash value in the leaf entries.
+	 */
+	index = xfs_dir2_leaf_search_hash(args, bp);
+	/*
+	 * Do we have a buffer coming in?
+	 */
+	if (state->extravalid)
+		curbp = state->extrablk.bp;
+	else
+		curbp = NULL;
+	/*
+	 * For addname, it's a free block buffer, get the block number.
+	 */
+	if (args->addname) {
+		curfdb = curbp ? state->extrablk.blkno : -1;
+		curdb = -1;
+		length = XFS_DIR2_DATA_ENTSIZE(args->namelen);
+		if ((free = (curbp ? curbp->data : NULL)))
+			ASSERT(INT_GET(free->hdr.magic, ARCH_CONVERT) == XFS_DIR2_FREE_MAGIC);
+	}
+	/*
+	 * For others, it's a data block buffer, get the block number.
+	 */
+	else {
+		curfdb = -1;
+		curdb = curbp ? state->extrablk.blkno : -1;
+	}
+	/*
+	 * Loop over leaf entries with the right hash value.
+	 */
+	for (lep = &leaf->ents[index];
+	     index < INT_GET(leaf->hdr.count, ARCH_CONVERT) && INT_GET(lep->hashval, ARCH_CONVERT) == args->hashval;
+	     lep++, index++) {
+		/*
+		 * Skip stale leaf entries.
+		 */
+		if (INT_GET(lep->address, ARCH_CONVERT) == XFS_DIR2_NULL_DATAPTR)
+			continue;
+		/*
+		 * Pull the data block number from the entry.
+		 */
+		newdb = XFS_DIR2_DATAPTR_TO_DB(mp, INT_GET(lep->address, ARCH_CONVERT));
+		/*
+		 * For addname, we're looking for a place to put the new entry.
+		 * We want to use a data block with an entry of equal
+		 * hash value to ours if there is one with room.
+		 */
+		if (args->addname) {
+			/*
+			 * If this block isn't the data block we already have
+			 * in hand, take a look at it.
+			 */
+			if (newdb != curdb) {
+				curdb = newdb;
+				/*
+				 * Convert the data block to the free block
+				 * holding its freespace information.
+				 */
+				newfdb = XFS_DIR2_DB_TO_FDB(mp, newdb);
+				/*
+				 * If it's not the one we have in hand,
+				 * read it in.
+				 */
+				if (newfdb != curfdb) {
+					/*
+					 * If we had one before, drop it.
+					 */
+					if (curbp)
+						xfs_da_brelse(tp, curbp);
+					/*
+					 * Read the free block.
+					 */
+					if ((error = xfs_da_read_buf(tp, dp,
+							XFS_DIR2_DB_TO_DA(mp,
+								newfdb),
+							-1, &curbp,
+							XFS_DATA_FORK))) {
+						return error;
+					}
+					curfdb = newfdb;
+					free = curbp->data;
+					ASSERT(INT_GET(free->hdr.magic, ARCH_CONVERT) ==
+					       XFS_DIR2_FREE_MAGIC);
+					ASSERT((INT_GET(free->hdr.firstdb, ARCH_CONVERT) %
+						XFS_DIR2_MAX_FREE_BESTS(mp)) ==
+					       0);
+					ASSERT(INT_GET(free->hdr.firstdb, ARCH_CONVERT) <= curdb);
+					ASSERT(curdb <
+					       INT_GET(free->hdr.firstdb, ARCH_CONVERT) +
+					       INT_GET(free->hdr.nvalid, ARCH_CONVERT));
+				}
+				/*
+				 * Get the index for our entry.
+				 */
+				fi = XFS_DIR2_DB_TO_FDINDEX(mp, curdb);
+				/*
+				 * If it has room, return it.
+				 */
+				if (unlikely(INT_GET(free->bests[fi], ARCH_CONVERT) == NULLDATAOFF)) {
+					XFS_ERROR_REPORT("xfs_dir2_leafn_lookup_int",
+							 XFS_ERRLEVEL_LOW, mp);
+					return XFS_ERROR(EFSCORRUPTED);
+				}
+				if (INT_GET(free->bests[fi], ARCH_CONVERT) >= length) {
+					*indexp = index;
+					state->extravalid = 1;
+					state->extrablk.bp = curbp;
+					state->extrablk.blkno = curfdb;
+					state->extrablk.index = fi;
+					state->extrablk.magic =
+						XFS_DIR2_FREE_MAGIC;
+					ASSERT(args->oknoent);
+					return XFS_ERROR(ENOENT);
+				}
+			}
+		}
+		/*
+		 * Not adding a new entry, so we really want to find
+		 * the name given to us.
+		 */
+		else {
+			/*
+			 * If it's a different data block, go get it.
+			 */
+			if (newdb != curdb) {
+				/*
+				 * If we had a block before, drop it.
+				 */
+				if (curbp)
+					xfs_da_brelse(tp, curbp);
+				/*
+				 * Read the data block.
+				 */
+				if ((error =
+				    xfs_da_read_buf(tp, dp,
+					    XFS_DIR2_DB_TO_DA(mp, newdb), -1,
+					    &curbp, XFS_DATA_FORK))) {
+					return error;
+				}
+				xfs_dir2_data_check(dp, curbp);
+				curdb = newdb;
+			}
+			/*
+			 * Point to the data entry.
+			 */
+			dep = (xfs_dir2_data_entry_t *)
+			      ((char *)curbp->data +
+			       XFS_DIR2_DATAPTR_TO_OFF(mp, INT_GET(lep->address, ARCH_CONVERT)));
+			/*
+			 * Compare the entry, return it if it matches.
+			 */
+			if (dep->namelen == args->namelen &&
+			    dep->name[0] == args->name[0] &&
+			    memcmp(dep->name, args->name, args->namelen) == 0) {
+				args->inumber = INT_GET(dep->inumber, ARCH_CONVERT);
+				*indexp = index;
+				state->extravalid = 1;
+				state->extrablk.bp = curbp;
+				state->extrablk.blkno = curdb;
+				state->extrablk.index =
+					(int)((char *)dep -
+					      (char *)curbp->data);
+				state->extrablk.magic = XFS_DIR2_DATA_MAGIC;
+				return XFS_ERROR(EEXIST);
+			}
+		}
+	}
+	/*
+	 * Didn't find a match.
+	 * If we are holding a buffer, give it back in case our caller
+	 * finds it useful.
+	 */
+	if ((state->extravalid = (curbp != NULL))) {
+		state->extrablk.bp = curbp;
+		state->extrablk.index = -1;
+		/*
+		 * For addname, giving back a free block.
+		 */
+		if (args->addname) {
+			state->extrablk.blkno = curfdb;
+			state->extrablk.magic = XFS_DIR2_FREE_MAGIC;
+		}
+		/*
+		 * For other callers, giving back a data block.
+		 */
+		else {
+			state->extrablk.blkno = curdb;
+			state->extrablk.magic = XFS_DIR2_DATA_MAGIC;
+		}
+	}
+	/*
+	 * Return the final index, that will be the insertion point.
+	 */
+	*indexp = index;
+	ASSERT(index == INT_GET(leaf->hdr.count, ARCH_CONVERT) || args->oknoent);
+	return XFS_ERROR(ENOENT);
+}
+
+/*
+ * Move count leaf entries from source to destination leaf.
+ * Log entries and headers.  Stale entries are preserved.
+ */
+static void
+xfs_dir2_leafn_moveents(
+	xfs_da_args_t	*args,			/* operation arguments */
+	xfs_dabuf_t	*bp_s,			/* source leaf buffer */
+	int		start_s,		/* source leaf index */
+	xfs_dabuf_t	*bp_d,			/* destination leaf buffer */
+	int		start_d,		/* destination leaf index */
+	int		count)			/* count of leaves to copy */
+{
+	xfs_dir2_leaf_t	*leaf_d;		/* destination leaf structure */
+	xfs_dir2_leaf_t	*leaf_s;		/* source leaf structure */
+	int		stale;			/* count stale leaves copied */
+	xfs_trans_t	*tp;			/* transaction pointer */
+
+	xfs_dir2_trace_args_bibii("leafn_moveents", args, bp_s, start_s, bp_d,
+		start_d, count);
+	/*
+	 * Silently return if nothing to do.
+	 */
+	if (count == 0) {
+		return;
+	}
+	tp = args->trans;
+	leaf_s = bp_s->data;
+	leaf_d = bp_d->data;
+	/*
+	 * If the destination index is not the end of the current
+	 * destination leaf entries, open up a hole in the destination
+	 * to hold the new entries.
+	 */
+	if (start_d < INT_GET(leaf_d->hdr.count, ARCH_CONVERT)) {
+		memmove(&leaf_d->ents[start_d + count], &leaf_d->ents[start_d],
+			(INT_GET(leaf_d->hdr.count, ARCH_CONVERT) - start_d) *
+			sizeof(xfs_dir2_leaf_entry_t));
+		xfs_dir2_leaf_log_ents(tp, bp_d, start_d + count,
+			count + INT_GET(leaf_d->hdr.count, ARCH_CONVERT) - 1);
+	}
+	/*
+	 * If the source has stale leaves, count the ones in the copy range
+	 * so we can update the header correctly.
+	 */
+	if (!INT_ISZERO(leaf_s->hdr.stale, ARCH_CONVERT)) {
+		int	i;			/* temp leaf index */
+
+		for (i = start_s, stale = 0; i < start_s + count; i++) {
+			if (INT_GET(leaf_s->ents[i].address, ARCH_CONVERT) == XFS_DIR2_NULL_DATAPTR)
+				stale++;
+		}
+	} else
+		stale = 0;
+	/*
+	 * Copy the leaf entries from source to destination.
+	 */
+	memcpy(&leaf_d->ents[start_d], &leaf_s->ents[start_s],
+		count * sizeof(xfs_dir2_leaf_entry_t));
+	xfs_dir2_leaf_log_ents(tp, bp_d, start_d, start_d + count - 1);
+	/*
+	 * If there are source entries after the ones we copied,
+	 * delete the ones we copied by sliding the next ones down.
+	 */
+	if (start_s + count < INT_GET(leaf_s->hdr.count, ARCH_CONVERT)) {
+		memmove(&leaf_s->ents[start_s], &leaf_s->ents[start_s + count],
+			count * sizeof(xfs_dir2_leaf_entry_t));
+		xfs_dir2_leaf_log_ents(tp, bp_s, start_s, start_s + count - 1);
+	}
+	/*
+	 * Update the headers and log them.
+	 */
+	INT_MOD(leaf_s->hdr.count, ARCH_CONVERT, -(count));
+	INT_MOD(leaf_s->hdr.stale, ARCH_CONVERT, -(stale));
+	INT_MOD(leaf_d->hdr.count, ARCH_CONVERT, count);
+	INT_MOD(leaf_d->hdr.stale, ARCH_CONVERT, stale);
+	xfs_dir2_leaf_log_header(tp, bp_s);
+	xfs_dir2_leaf_log_header(tp, bp_d);
+	xfs_dir2_leafn_check(args->dp, bp_s);
+	xfs_dir2_leafn_check(args->dp, bp_d);
+}
+
+/*
+ * Determine the sort order of two leaf blocks.
+ * Returns 1 if both are valid and leaf2 should be before leaf1, else 0.
+ */
+int						/* sort order */
+xfs_dir2_leafn_order(
+	xfs_dabuf_t	*leaf1_bp,		/* leaf1 buffer */
+	xfs_dabuf_t	*leaf2_bp)		/* leaf2 buffer */
+{
+	xfs_dir2_leaf_t	*leaf1;			/* leaf1 structure */
+	xfs_dir2_leaf_t	*leaf2;			/* leaf2 structure */
+
+	leaf1 = leaf1_bp->data;
+	leaf2 = leaf2_bp->data;
+	ASSERT(INT_GET(leaf1->hdr.info.magic, ARCH_CONVERT) == XFS_DIR2_LEAFN_MAGIC);
+	ASSERT(INT_GET(leaf2->hdr.info.magic, ARCH_CONVERT) == XFS_DIR2_LEAFN_MAGIC);
+	if (INT_GET(leaf1->hdr.count, ARCH_CONVERT) > 0 &&
+	    INT_GET(leaf2->hdr.count, ARCH_CONVERT) > 0 &&
+	    (INT_GET(leaf2->ents[0].hashval, ARCH_CONVERT) < INT_GET(leaf1->ents[0].hashval, ARCH_CONVERT) ||
+	     INT_GET(leaf2->ents[INT_GET(leaf2->hdr.count, ARCH_CONVERT) - 1].hashval, ARCH_CONVERT) <
+	     INT_GET(leaf1->ents[INT_GET(leaf1->hdr.count, ARCH_CONVERT) - 1].hashval, ARCH_CONVERT)))
+		return 1;
+	return 0;
+}
+
+/*
+ * Rebalance leaf entries between two leaf blocks.
+ * This is actually only called when the second block is new,
+ * though the code deals with the general case.
+ * A new entry will be inserted in one of the blocks, and that
+ * entry is taken into account when balancing.
+ */
+static void
+xfs_dir2_leafn_rebalance(
+	xfs_da_state_t		*state,		/* btree cursor */
+	xfs_da_state_blk_t	*blk1,		/* first btree block */
+	xfs_da_state_blk_t	*blk2)		/* second btree block */
+{
+	xfs_da_args_t		*args;		/* operation arguments */
+	int			count;		/* count (& direction) leaves */
+	int			isleft;		/* new goes in left leaf */
+	xfs_dir2_leaf_t		*leaf1;		/* first leaf structure */
+	xfs_dir2_leaf_t		*leaf2;		/* second leaf structure */
+	int			mid;		/* midpoint leaf index */
+#ifdef DEBUG
+	int			oldstale;	/* old count of stale leaves */
+#endif
+	int			oldsum;		/* old total leaf count */
+	int			swap;		/* swapped leaf blocks */
+
+	args = state->args;
+	/*
+	 * If the block order is wrong, swap the arguments.
+	 */
+	if ((swap = xfs_dir2_leafn_order(blk1->bp, blk2->bp))) {
+		xfs_da_state_blk_t	*tmp;	/* temp for block swap */
+
+		tmp = blk1;
+		blk1 = blk2;
+		blk2 = tmp;
+	}
+	leaf1 = blk1->bp->data;
+	leaf2 = blk2->bp->data;
+	oldsum = INT_GET(leaf1->hdr.count, ARCH_CONVERT) + INT_GET(leaf2->hdr.count, ARCH_CONVERT);
+#ifdef DEBUG
+	oldstale = INT_GET(leaf1->hdr.stale, ARCH_CONVERT) + INT_GET(leaf2->hdr.stale, ARCH_CONVERT);
+#endif
+	mid = oldsum >> 1;
+	/*
+	 * If the old leaf count was odd then the new one will be even,
+	 * so we need to divide the new count evenly.
+	 */
+	if (oldsum & 1) {
+		xfs_dahash_t	midhash;	/* middle entry hash value */
+
+		if (mid >= INT_GET(leaf1->hdr.count, ARCH_CONVERT))
+			midhash = INT_GET(leaf2->ents[mid - INT_GET(leaf1->hdr.count, ARCH_CONVERT)].hashval, ARCH_CONVERT);
+		else
+			midhash = INT_GET(leaf1->ents[mid].hashval, ARCH_CONVERT);
+		isleft = args->hashval <= midhash;
+	}
+	/*
+	 * If the old count is even then the new count is odd, so there's
+	 * no preferred side for the new entry.
+	 * Pick the left one.
+	 */
+	else
+		isleft = 1;
+	/*
+	 * Calculate moved entry count.  Positive means left-to-right,
+	 * negative means right-to-left.  Then move the entries.
+	 */
+	count = INT_GET(leaf1->hdr.count, ARCH_CONVERT) - mid + (isleft == 0);
+	if (count > 0)
+		xfs_dir2_leafn_moveents(args, blk1->bp,
+			INT_GET(leaf1->hdr.count, ARCH_CONVERT) - count, blk2->bp, 0, count);
+	else if (count < 0)
+		xfs_dir2_leafn_moveents(args, blk2->bp, 0, blk1->bp,
+			INT_GET(leaf1->hdr.count, ARCH_CONVERT), count);
+	ASSERT(INT_GET(leaf1->hdr.count, ARCH_CONVERT) + INT_GET(leaf2->hdr.count, ARCH_CONVERT) == oldsum);
+	ASSERT(INT_GET(leaf1->hdr.stale, ARCH_CONVERT) + INT_GET(leaf2->hdr.stale, ARCH_CONVERT) == oldstale);
+	/*
+	 * Mark whether we're inserting into the old or new leaf.
+	 */
+	if (INT_GET(leaf1->hdr.count, ARCH_CONVERT) < INT_GET(leaf2->hdr.count, ARCH_CONVERT))
+		state->inleaf = swap;
+	else if (INT_GET(leaf1->hdr.count, ARCH_CONVERT) > INT_GET(leaf2->hdr.count, ARCH_CONVERT))
+		state->inleaf = !swap;
+	else
+		state->inleaf =
+			swap ^ (blk1->index <= INT_GET(leaf1->hdr.count, ARCH_CONVERT));
+	/*
+	 * Adjust the expected index for insertion.
+	 */
+	if (!state->inleaf)
+		blk2->index = blk1->index - INT_GET(leaf1->hdr.count, ARCH_CONVERT);
+	
+	/* 
+	 * Finally sanity check just to make sure we are not returning a negative index 
+	 */
+	if(blk2->index < 0) {
+		state->inleaf = 1;
+		blk2->index = 0;
+		cmn_err(CE_ALERT,
+			"xfs_dir2_leafn_rebalance: picked the wrong leaf? reverting orignal leaf: "
+			"blk1->index %d\n",
+			blk1->index);
+	}
+}
+
+/*
+ * Remove an entry from a node directory.
+ * This removes the leaf entry and the data entry,
+ * and updates the free block if necessary.
+ */
+static int					/* error */
+xfs_dir2_leafn_remove(
+	xfs_da_args_t		*args,		/* operation arguments */
+	xfs_dabuf_t		*bp,		/* leaf buffer */
+	int			index,		/* leaf entry index */
+	xfs_da_state_blk_t	*dblk,		/* data block */
+	int			*rval)		/* resulting block needs join */
+{
+	xfs_dir2_data_t		*data;		/* data block structure */
+	xfs_dir2_db_t		db;		/* data block number */
+	xfs_dabuf_t		*dbp;		/* data block buffer */
+	xfs_dir2_data_entry_t	*dep;		/* data block entry */
+	xfs_inode_t		*dp;		/* incore directory inode */
+	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
+	xfs_dir2_leaf_entry_t	*lep;		/* leaf entry */
+	int			longest;	/* longest data free entry */
+	int			off;		/* data block entry offset */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+	int			needlog;	/* need to log data header */
+	int			needscan;	/* need to rescan data frees */
+	xfs_trans_t		*tp;		/* transaction pointer */
+
+	xfs_dir2_trace_args_sb("leafn_remove", args, index, bp);
+	dp = args->dp;
+	tp = args->trans;
+	mp = dp->i_mount;
+	leaf = bp->data;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR2_LEAFN_MAGIC);
+	/*
+	 * Point to the entry we're removing.
+	 */
+	lep = &leaf->ents[index];
+	/*
+	 * Extract the data block and offset from the entry.
+	 */
+	db = XFS_DIR2_DATAPTR_TO_DB(mp, INT_GET(lep->address, ARCH_CONVERT));
+	ASSERT(dblk->blkno == db);
+	off = XFS_DIR2_DATAPTR_TO_OFF(mp, INT_GET(lep->address, ARCH_CONVERT));
+	ASSERT(dblk->index == off);
+	/*
+	 * Kill the leaf entry by marking it stale.
+	 * Log the leaf block changes.
+	 */
+	INT_MOD(leaf->hdr.stale, ARCH_CONVERT, +1);
+	xfs_dir2_leaf_log_header(tp, bp);
+	INT_SET(lep->address, ARCH_CONVERT, XFS_DIR2_NULL_DATAPTR);
+	xfs_dir2_leaf_log_ents(tp, bp, index, index);
+	/*
+	 * Make the data entry free.  Keep track of the longest freespace
+	 * in the data block in case it changes.
+	 */
+	dbp = dblk->bp;
+	data = dbp->data;
+	dep = (xfs_dir2_data_entry_t *)((char *)data + off);
+	longest = INT_GET(data->hdr.bestfree[0].length, ARCH_CONVERT);
+	needlog = needscan = 0;
+	xfs_dir2_data_make_free(tp, dbp, off,
+		XFS_DIR2_DATA_ENTSIZE(dep->namelen), &needlog, &needscan);
+	/*
+	 * Rescan the data block freespaces for bestfree.
+	 * Log the data block header if needed.
+	 */
+	if (needscan)
+		xfs_dir2_data_freescan(mp, data, &needlog, NULL);
+	if (needlog)
+		xfs_dir2_data_log_header(tp, dbp);
+	xfs_dir2_data_check(dp, dbp);
+	/*
+	 * If the longest data block freespace changes, need to update
+	 * the corresponding freeblock entry.
+	 */
+	if (longest < INT_GET(data->hdr.bestfree[0].length, ARCH_CONVERT)) {
+		int		error;		/* error return value */
+		xfs_dabuf_t	*fbp;		/* freeblock buffer */
+		xfs_dir2_db_t	fdb;		/* freeblock block number */
+		int		findex;		/* index in freeblock entries */
+		xfs_dir2_free_t	*free;		/* freeblock structure */
+		int		logfree;	/* need to log free entry */
+
+		/*
+		 * Convert the data block number to a free block,
+		 * read in the free block.
+		 */
+		fdb = XFS_DIR2_DB_TO_FDB(mp, db);
+		if ((error = xfs_da_read_buf(tp, dp, XFS_DIR2_DB_TO_DA(mp, fdb),
+				-1, &fbp, XFS_DATA_FORK))) {
+			return error;
+		}
+		free = fbp->data;
+		ASSERT(INT_GET(free->hdr.magic, ARCH_CONVERT) == XFS_DIR2_FREE_MAGIC);
+		ASSERT(INT_GET(free->hdr.firstdb, ARCH_CONVERT) ==
+		       XFS_DIR2_MAX_FREE_BESTS(mp) *
+		       (fdb - XFS_DIR2_FREE_FIRSTDB(mp)));
+		/*
+		 * Calculate which entry we need to fix.
+		 */
+		findex = XFS_DIR2_DB_TO_FDINDEX(mp, db);
+		longest = INT_GET(data->hdr.bestfree[0].length, ARCH_CONVERT);
+		/*
+		 * If the data block is now empty we can get rid of it
+		 * (usually).
+		 */
+		if (longest == mp->m_dirblksize - (uint)sizeof(data->hdr)) {
+			/*
+			 * Try to punch out the data block.
+			 */
+			error = xfs_dir2_shrink_inode(args, db, dbp);
+			if (error == 0) {
+				dblk->bp = NULL;
+				data = NULL;
+			}
+			/*
+			 * We can get ENOSPC if there's no space reservation.
+			 * In this case just drop the buffer and some one else
+			 * will eventually get rid of the empty block.
+			 */
+			else if (error == ENOSPC && args->total == 0)
+				xfs_da_buf_done(dbp);
+			else
+				return error;
+		}
+		/*
+		 * If we got rid of the data block, we can eliminate that entry
+		 * in the free block.
+		 */
+		if (data == NULL) {
+			/*
+			 * One less used entry in the free table.
+			 */
+			INT_MOD(free->hdr.nused, ARCH_CONVERT, -1);
+			xfs_dir2_free_log_header(tp, fbp);
+			/*
+			 * If this was the last entry in the table, we can
+			 * trim the table size back.  There might be other
+			 * entries at the end referring to non-existent
+			 * data blocks, get those too.
+			 */
+			if (findex == INT_GET(free->hdr.nvalid, ARCH_CONVERT) - 1) {
+				int	i;		/* free entry index */
+
+				for (i = findex - 1;
+				     i >= 0 && INT_GET(free->bests[i], ARCH_CONVERT) == NULLDATAOFF;
+				     i--)
+					continue;
+				INT_SET(free->hdr.nvalid, ARCH_CONVERT, i + 1);
+				logfree = 0;
+			}
+			/*
+			 * Not the last entry, just punch it out.
+			 */
+			else {
+				INT_SET(free->bests[findex], ARCH_CONVERT, NULLDATAOFF);
+				logfree = 1;
+			}
+			/*
+			 * If there are no useful entries left in the block,
+			 * get rid of the block if we can.
+			 */
+			if (INT_ISZERO(free->hdr.nused, ARCH_CONVERT)) {
+				error = xfs_dir2_shrink_inode(args, fdb, fbp);
+				if (error == 0) {
+					fbp = NULL;
+					logfree = 0;
+				} else if (error != ENOSPC || args->total != 0)
+					return error;
+				/*
+				 * It's possible to get ENOSPC if there is no
+				 * space reservation.  In this case some one
+				 * else will eventually get rid of this block.
+				 */
+			}
+		}
+		/*
+		 * Data block is not empty, just set the free entry to
+		 * the new value.
+		 */
+		else {
+			INT_SET(free->bests[findex], ARCH_CONVERT, longest);
+			logfree = 1;
+		}
+		/*
+		 * Log the free entry that changed, unless we got rid of it.
+		 */
+		if (logfree)
+			xfs_dir2_free_log_bests(tp, fbp, findex, findex);
+		/*
+		 * Drop the buffer if we still have it.
+		 */
+		if (fbp)
+			xfs_da_buf_done(fbp);
+	}
+	xfs_dir2_leafn_check(dp, bp);
+	/*
+	 * Return indication of whether this leaf block is emtpy enough
+	 * to justify trying to join it with a neighbor.
+	 */
+	*rval =
+		((uint)sizeof(leaf->hdr) +
+		 (uint)sizeof(leaf->ents[0]) *
+		 (INT_GET(leaf->hdr.count, ARCH_CONVERT) - INT_GET(leaf->hdr.stale, ARCH_CONVERT))) <
+		mp->m_dir_magicpct;
+	return 0;
+}
+
+/*
+ * Split the leaf entries in the old block into old and new blocks.
+ */
+int						/* error */
+xfs_dir2_leafn_split(
+	xfs_da_state_t		*state,		/* btree cursor */
+	xfs_da_state_blk_t	*oldblk,	/* original block */
+	xfs_da_state_blk_t	*newblk)	/* newly created block */
+{
+	xfs_da_args_t		*args;		/* operation arguments */
+	xfs_dablk_t		blkno;		/* new leaf block number */
+	int			error;		/* error return value */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+
+	/*
+	 * Allocate space for a new leaf node.
+	 */
+	args = state->args;
+	mp = args->dp->i_mount;
+	ASSERT(args != NULL);
+	ASSERT(oldblk->magic == XFS_DIR2_LEAFN_MAGIC);
+	error = xfs_da_grow_inode(args, &blkno);
+	if (error) {
+		return error;
+	}
+	/*
+	 * Initialize the new leaf block.
+	 */
+	error = xfs_dir2_leaf_init(args, XFS_DIR2_DA_TO_DB(mp, blkno),
+		&newblk->bp, XFS_DIR2_LEAFN_MAGIC);
+	if (error) {
+		return error;
+	}
+	newblk->blkno = blkno;
+	newblk->magic = XFS_DIR2_LEAFN_MAGIC;
+	/*
+	 * Rebalance the entries across the two leaves, link the new
+	 * block into the leaves.
+	 */
+	xfs_dir2_leafn_rebalance(state, oldblk, newblk);
+	error = xfs_da_blk_link(state, oldblk, newblk);
+	if (error) {
+		return error;
+	}
+	/*
+	 * Insert the new entry in the correct block.
+	 */
+	if (state->inleaf)
+		error = xfs_dir2_leafn_add(oldblk->bp, args, oldblk->index);
+	else
+		error = xfs_dir2_leafn_add(newblk->bp, args, newblk->index);
+	/*
+	 * Update last hashval in each block since we added the name.
+	 */
+	oldblk->hashval = xfs_dir2_leafn_lasthash(oldblk->bp, NULL);
+	newblk->hashval = xfs_dir2_leafn_lasthash(newblk->bp, NULL);
+	xfs_dir2_leafn_check(args->dp, oldblk->bp);
+	xfs_dir2_leafn_check(args->dp, newblk->bp);
+	return error;
+}
+
+/*
+ * Check a leaf block and its neighbors to see if the block should be
+ * collapsed into one or the other neighbor.  Always keep the block
+ * with the smaller block number.
+ * If the current block is over 50% full, don't try to join it, return 0.
+ * If the block is empty, fill in the state structure and return 2.
+ * If it can be collapsed, fill in the state structure and return 1.
+ * If nothing can be done, return 0.
+ */
+int						/* error */
+xfs_dir2_leafn_toosmall(
+	xfs_da_state_t		*state,		/* btree cursor */
+	int			*action)	/* resulting action to take */
+{
+	xfs_da_state_blk_t	*blk;		/* leaf block */
+	xfs_dablk_t		blkno;		/* leaf block number */
+	xfs_dabuf_t		*bp;		/* leaf buffer */
+	int			bytes;		/* bytes in use */
+	int			count;		/* leaf live entry count */
+	int			error;		/* error return value */
+	int			forward;	/* sibling block direction */
+	int			i;		/* sibling counter */
+	xfs_da_blkinfo_t	*info;		/* leaf block header */
+	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
+	int			rval;		/* result from path_shift */
+
+	/*
+	 * Check for the degenerate case of the block being over 50% full.
+	 * If so, it's not worth even looking to see if we might be able
+	 * to coalesce with a sibling.
+	 */
+	blk = &state->path.blk[state->path.active - 1];
+	info = blk->bp->data;
+	ASSERT(INT_GET(info->magic, ARCH_CONVERT) == XFS_DIR2_LEAFN_MAGIC);
+	leaf = (xfs_dir2_leaf_t *)info;
+	count = INT_GET(leaf->hdr.count, ARCH_CONVERT) - INT_GET(leaf->hdr.stale, ARCH_CONVERT);
+	bytes = (uint)sizeof(leaf->hdr) + count * (uint)sizeof(leaf->ents[0]);
+	if (bytes > (state->blocksize >> 1)) {
+		/*
+		 * Blk over 50%, don't try to join.
+		 */
+		*action = 0;
+		return 0;
+	}
+	/*
+	 * Check for the degenerate case of the block being empty.
+	 * If the block is empty, we'll simply delete it, no need to
+	 * coalesce it with a sibling block.  We choose (arbitrarily)
+	 * to merge with the forward block unless it is NULL.
+	 */
+	if (count == 0) {
+		/*
+		 * Make altpath point to the block we want to keep and
+		 * path point to the block we want to drop (this one).
+		 */
+		forward = !INT_ISZERO(info->forw, ARCH_CONVERT);
+		memcpy(&state->altpath, &state->path, sizeof(state->path));
+		error = xfs_da_path_shift(state, &state->altpath, forward, 0,
+			&rval);
+		if (error)
+			return error;
+		*action = rval ? 2 : 0;
+		return 0;
+	}
+	/*
+	 * Examine each sibling block to see if we can coalesce with
+	 * at least 25% free space to spare.  We need to figure out
+	 * whether to merge with the forward or the backward block.
+	 * We prefer coalescing with the lower numbered sibling so as
+	 * to shrink a directory over time.
+	 */
+	forward = INT_GET(info->forw, ARCH_CONVERT) < INT_GET(info->back, ARCH_CONVERT);
+	for (i = 0, bp = NULL; i < 2; forward = !forward, i++) {
+		blkno = forward ?INT_GET( info->forw, ARCH_CONVERT) : INT_GET(info->back, ARCH_CONVERT);
+		if (blkno == 0)
+			continue;
+		/*
+		 * Read the sibling leaf block.
+		 */
+		if ((error =
+		    xfs_da_read_buf(state->args->trans, state->args->dp, blkno,
+			    -1, &bp, XFS_DATA_FORK))) {
+			return error;
+		}
+		ASSERT(bp != NULL);
+		/*
+		 * Count bytes in the two blocks combined.
+		 */
+		leaf = (xfs_dir2_leaf_t *)info;
+		count = INT_GET(leaf->hdr.count, ARCH_CONVERT) - INT_GET(leaf->hdr.stale, ARCH_CONVERT);
+		bytes = state->blocksize - (state->blocksize >> 2);
+		leaf = bp->data;
+		ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR2_LEAFN_MAGIC);
+		count += INT_GET(leaf->hdr.count, ARCH_CONVERT) - INT_GET(leaf->hdr.stale, ARCH_CONVERT);
+		bytes -= count * (uint)sizeof(leaf->ents[0]);
+		/*
+		 * Fits with at least 25% to spare.
+		 */
+		if (bytes >= 0)
+			break;
+		xfs_da_brelse(state->args->trans, bp);
+	}
+	/*
+	 * Didn't like either block, give up.
+	 */
+	if (i >= 2) {
+		*action = 0;
+		return 0;
+	}
+	/*
+	 * Done with the sibling leaf block here, drop the dabuf
+	 * so path_shift can get it.
+	 */
+	xfs_da_buf_done(bp);
+	/*
+	 * Make altpath point to the block we want to keep (the lower
+	 * numbered block) and path point to the block we want to drop.
+	 */
+	memcpy(&state->altpath, &state->path, sizeof(state->path));
+	if (blkno < blk->blkno)
+		error = xfs_da_path_shift(state, &state->altpath, forward, 0,
+			&rval);
+	else
+		error = xfs_da_path_shift(state, &state->path, forward, 0,
+			&rval);
+	if (error) {
+		return error;
+	}
+	*action = rval ? 0 : 1;
+	return 0;
+}
+
+/*
+ * Move all the leaf entries from drop_blk to save_blk.
+ * This is done as part of a join operation.
+ */
+void
+xfs_dir2_leafn_unbalance(
+	xfs_da_state_t		*state,		/* cursor */
+	xfs_da_state_blk_t	*drop_blk,	/* dead block */
+	xfs_da_state_blk_t	*save_blk)	/* surviving block */
+{
+	xfs_da_args_t		*args;		/* operation arguments */
+	xfs_dir2_leaf_t		*drop_leaf;	/* dead leaf structure */
+	xfs_dir2_leaf_t		*save_leaf;	/* surviving leaf structure */
+
+	args = state->args;
+	ASSERT(drop_blk->magic == XFS_DIR2_LEAFN_MAGIC);
+	ASSERT(save_blk->magic == XFS_DIR2_LEAFN_MAGIC);
+	drop_leaf = drop_blk->bp->data;
+	save_leaf = save_blk->bp->data;
+	ASSERT(INT_GET(drop_leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR2_LEAFN_MAGIC);
+	ASSERT(INT_GET(save_leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR2_LEAFN_MAGIC);
+	/*
+	 * If there are any stale leaf entries, take this opportunity
+	 * to purge them.
+	 */
+	if (INT_GET(drop_leaf->hdr.stale, ARCH_CONVERT))
+		xfs_dir2_leaf_compact(args, drop_blk->bp);
+	if (INT_GET(save_leaf->hdr.stale, ARCH_CONVERT))
+		xfs_dir2_leaf_compact(args, save_blk->bp);
+	/*
+	 * Move the entries from drop to the appropriate end of save.
+	 */
+	drop_blk->hashval = INT_GET(drop_leaf->ents[INT_GET(drop_leaf->hdr.count, ARCH_CONVERT) - 1].hashval, ARCH_CONVERT);
+	if (xfs_dir2_leafn_order(save_blk->bp, drop_blk->bp))
+		xfs_dir2_leafn_moveents(args, drop_blk->bp, 0, save_blk->bp, 0,
+			INT_GET(drop_leaf->hdr.count, ARCH_CONVERT));
+	else
+		xfs_dir2_leafn_moveents(args, drop_blk->bp, 0, save_blk->bp,
+			INT_GET(save_leaf->hdr.count, ARCH_CONVERT), INT_GET(drop_leaf->hdr.count, ARCH_CONVERT));
+	save_blk->hashval = INT_GET(save_leaf->ents[INT_GET(save_leaf->hdr.count, ARCH_CONVERT) - 1].hashval, ARCH_CONVERT);
+	xfs_dir2_leafn_check(args->dp, save_blk->bp);
+}
+
+/*
+ * Top-level node form directory addname routine.
+ */
+int						/* error */
+xfs_dir2_node_addname(
+	xfs_da_args_t		*args)		/* operation arguments */
+{
+	xfs_da_state_blk_t	*blk;		/* leaf block for insert */
+	int			error;		/* error return value */
+	int			rval;		/* sub-return value */
+	xfs_da_state_t		*state;		/* btree cursor */
+
+	xfs_dir2_trace_args("node_addname", args);
+	/*
+	 * Allocate and initialize the state (btree cursor).
+	 */
+	state = xfs_da_state_alloc();
+	state->args = args;
+	state->mp = args->dp->i_mount;
+	state->blocksize = state->mp->m_dirblksize;
+	state->node_ents = state->mp->m_dir_node_ents;
+	/*
+	 * Look up the name.  We're not supposed to find it, but
+	 * this gives us the insertion point.
+	 */
+	error = xfs_da_node_lookup_int(state, &rval);
+	if (error)
+		rval = error;
+	if (rval != ENOENT) {
+		goto done;
+	}
+	/*
+	 * Add the data entry to a data block.
+	 * Extravalid is set to a freeblock found by lookup.
+	 */
+	rval = xfs_dir2_node_addname_int(args,
+		state->extravalid ? &state->extrablk : NULL);
+	if (rval) {
+		goto done;
+	}
+	blk = &state->path.blk[state->path.active - 1];
+	ASSERT(blk->magic == XFS_DIR2_LEAFN_MAGIC);
+	/*
+	 * Add the new leaf entry.
+	 */
+	rval = xfs_dir2_leafn_add(blk->bp, args, blk->index);
+	if (rval == 0) {
+		/*
+		 * It worked, fix the hash values up the btree.
+		 */
+		if (!args->justcheck)
+			xfs_da_fixhashpath(state, &state->path);
+	} else {
+		/*
+		 * It didn't work, we need to split the leaf block.
+		 */
+		if (args->total == 0) {
+			ASSERT(rval == ENOSPC);
+			goto done;
+		}
+		/*
+		 * Split the leaf block and insert the new entry.
+		 */
+		rval = xfs_da_split(state);
+	}
+done:
+	xfs_da_state_free(state);
+	return rval;
+}
+
+/*
+ * Add the data entry for a node-format directory name addition.
+ * The leaf entry is added in xfs_dir2_leafn_add.
+ * We may enter with a freespace block that the lookup found.
+ */
+static int					/* error */
+xfs_dir2_node_addname_int(
+	xfs_da_args_t		*args,		/* operation arguments */
+	xfs_da_state_blk_t	*fblk)		/* optional freespace block */
+{
+	xfs_dir2_data_t		*data;		/* data block structure */
+	xfs_dir2_db_t		dbno;		/* data block number */
+	xfs_dabuf_t		*dbp;		/* data block buffer */
+	xfs_dir2_data_entry_t	*dep;		/* data entry pointer */
+	xfs_inode_t		*dp;		/* incore directory inode */
+	xfs_dir2_data_unused_t	*dup;		/* data unused entry pointer */
+	int			error;		/* error return value */
+	xfs_dir2_db_t		fbno;		/* freespace block number */
+	xfs_dabuf_t		*fbp;		/* freespace buffer */
+	int			findex;		/* freespace entry index */
+	xfs_dir2_free_t		*free=NULL;	/* freespace block structure */
+	xfs_dir2_db_t		ifbno;		/* initial freespace block no */
+	xfs_dir2_db_t		lastfbno=0;	/* highest freespace block no */
+	int			length;		/* length of the new entry */
+	int			logfree;	/* need to log free entry */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+	int			needlog;	/* need to log data header */
+	int			needscan;	/* need to rescan data frees */
+	xfs_dir2_data_off_t	*tagp;		/* data entry tag pointer */
+	xfs_trans_t		*tp;		/* transaction pointer */
+
+	dp = args->dp;
+	mp = dp->i_mount;
+	tp = args->trans;
+	length = XFS_DIR2_DATA_ENTSIZE(args->namelen);
+	/*
+	 * If we came in with a freespace block that means that lookup
+	 * found an entry with our hash value.  This is the freespace
+	 * block for that data entry.
+	 */
+	if (fblk) {
+		fbp = fblk->bp;
+		/*
+		 * Remember initial freespace block number.
+		 */
+		ifbno = fblk->blkno;
+		free = fbp->data;
+		ASSERT(INT_GET(free->hdr.magic, ARCH_CONVERT) == XFS_DIR2_FREE_MAGIC);
+		findex = fblk->index;
+		/*
+		 * This means the free entry showed that the data block had
+		 * space for our entry, so we remembered it.
+		 * Use that data block.
+		 */
+		if (findex >= 0) {
+			ASSERT(findex < INT_GET(free->hdr.nvalid, ARCH_CONVERT));
+			ASSERT(INT_GET(free->bests[findex], ARCH_CONVERT) != NULLDATAOFF);
+			ASSERT(INT_GET(free->bests[findex], ARCH_CONVERT) >= length);
+			dbno = INT_GET(free->hdr.firstdb, ARCH_CONVERT) + findex;
+		}
+		/*
+		 * The data block looked at didn't have enough room.
+		 * We'll start at the beginning of the freespace entries.
+		 */
+		else {
+			dbno = -1;
+			findex = 0;
+		}
+	}
+	/*
+	 * Didn't come in with a freespace block, so don't have a data block.
+	 */
+	else {
+		ifbno = dbno = -1;
+		fbp = NULL;
+		findex = 0;
+	}
+	/*
+	 * If we don't have a data block yet, we're going to scan the
+	 * freespace blocks looking for one.  Figure out what the
+	 * highest freespace block number is.
+	 */
+	if (dbno == -1) {
+		xfs_fileoff_t	fo;		/* freespace block number */
+
+		if ((error = xfs_bmap_last_offset(tp, dp, &fo, XFS_DATA_FORK)))
+			return error;
+		lastfbno = XFS_DIR2_DA_TO_DB(mp, (xfs_dablk_t)fo);
+		fbno = ifbno;
+	}
+	/*
+	 * While we haven't identified a data block, search the freeblock
+	 * data for a good data block.  If we find a null freeblock entry,
+	 * indicating a hole in the data blocks, remember that.
+	 */
+	while (dbno == -1) {
+		/*
+		 * If we don't have a freeblock in hand, get the next one.
+		 */
+		if (fbp == NULL) {
+			/*
+			 * Happens the first time through unless lookup gave
+			 * us a freespace block to start with.
+			 */
+			if (++fbno == 0)
+				fbno = XFS_DIR2_FREE_FIRSTDB(mp);
+			/*
+			 * If it's ifbno we already looked at it.
+			 */
+			if (fbno == ifbno)
+				fbno++;
+			/*
+			 * If it's off the end we're done.
+			 */
+			if (fbno >= lastfbno)
+				break;
+			/*
+			 * Read the block.  There can be holes in the
+			 * freespace blocks, so this might not succeed.
+			 * This should be really rare, so there's no reason
+			 * to avoid it.
+			 */
+			if ((error = xfs_da_read_buf(tp, dp,
+					XFS_DIR2_DB_TO_DA(mp, fbno), -2, &fbp,
+					XFS_DATA_FORK))) {
+				return error;
+			}
+			if (unlikely(fbp == NULL)) {
+				continue;
+			}
+			free = fbp->data;
+			ASSERT(INT_GET(free->hdr.magic, ARCH_CONVERT) == XFS_DIR2_FREE_MAGIC);
+			findex = 0;
+		}
+		/*
+		 * Look at the current free entry.  Is it good enough?
+		 */
+		if (INT_GET(free->bests[findex], ARCH_CONVERT) != NULLDATAOFF &&
+		    INT_GET(free->bests[findex], ARCH_CONVERT) >= length)
+			dbno = INT_GET(free->hdr.firstdb, ARCH_CONVERT) + findex;
+		else {
+			/*
+			 * Are we done with the freeblock?
+			 */
+			if (++findex == INT_GET(free->hdr.nvalid, ARCH_CONVERT)) {
+				/*
+				 * Drop the block.
+				 */
+				xfs_da_brelse(tp, fbp);
+				fbp = NULL;
+				if (fblk && fblk->bp)
+					fblk->bp = NULL;
+			}
+		}
+	}
+	/*
+	 * If we don't have a data block, we need to allocate one and make
+	 * the freespace entries refer to it.
+	 */
+	if (unlikely(dbno == -1)) {
+		/*
+		 * Not allowed to allocate, return failure.
+		 */
+		if (args->justcheck || args->total == 0) {
+			/*
+			 * Drop the freespace buffer unless it came from our
+			 * caller.
+			 */
+			if ((fblk == NULL || fblk->bp == NULL) && fbp != NULL)
+				xfs_da_buf_done(fbp);
+			return XFS_ERROR(ENOSPC);
+		}
+		/*
+		 * Allocate and initialize the new data block.
+		 */
+		if (unlikely((error = xfs_dir2_grow_inode(args,
+							 XFS_DIR2_DATA_SPACE,
+							 &dbno)) ||
+		    (error = xfs_dir2_data_init(args, dbno, &dbp)))) {
+			/*
+			 * Drop the freespace buffer unless it came from our
+			 * caller.
+			 */
+			if ((fblk == NULL || fblk->bp == NULL) && fbp != NULL)
+				xfs_da_buf_done(fbp);
+			return error;
+		}
+		/*
+		 * If (somehow) we have a freespace block, get rid of it.
+		 */
+		if (fbp)
+			xfs_da_brelse(tp, fbp);
+		if (fblk && fblk->bp)
+			fblk->bp = NULL;
+
+		/*
+		 * Get the freespace block corresponding to the data block
+		 * that was just allocated.
+		 */
+		fbno = XFS_DIR2_DB_TO_FDB(mp, dbno);
+		if (unlikely(error = xfs_da_read_buf(tp, dp,
+				XFS_DIR2_DB_TO_DA(mp, fbno), -2, &fbp,
+				XFS_DATA_FORK))) {
+			xfs_da_buf_done(dbp);
+			return error;
+  		}
+		/*
+		 * If there wasn't a freespace block, the read will
+		 * return a NULL fbp.  Allocate and initialize a new one.
+		 */
+		if( fbp == NULL ) {
+			if ((error = xfs_dir2_grow_inode(args, XFS_DIR2_FREE_SPACE,
+							&fbno))) {
+				return error;
+			}
+
+			if (unlikely(XFS_DIR2_DB_TO_FDB(mp, dbno) != fbno)) {
+				cmn_err(CE_ALERT,
+					"xfs_dir2_node_addname_int: dir ino "
+					"%llu needed freesp block %lld for\n"
+					"  data block %lld, got %lld\n"
+					"  ifbno %llu lastfbno %d\n",
+					(unsigned long long)dp->i_ino,
+					(long long)XFS_DIR2_DB_TO_FDB(mp, dbno),
+					(long long)dbno, (long long)fbno,
+					(unsigned long long)ifbno, lastfbno);
+				if (fblk) {
+					cmn_err(CE_ALERT,
+						" fblk 0x%p blkno %llu "
+						"index %d magic 0x%x\n",
+						fblk,
+						(unsigned long long)fblk->blkno,
+						fblk->index,
+						fblk->magic);
+				} else {
+					cmn_err(CE_ALERT,
+						" ... fblk is NULL\n");
+				}
+				XFS_ERROR_REPORT("xfs_dir2_node_addname_int",
+						 XFS_ERRLEVEL_LOW, mp);
+				return XFS_ERROR(EFSCORRUPTED);
+			}
+
+			/*
+			 * Get a buffer for the new block.
+			 */
+			if ((error = xfs_da_get_buf(tp, dp,
+						   XFS_DIR2_DB_TO_DA(mp, fbno),
+						   -1, &fbp, XFS_DATA_FORK))) {
+				return error;
+			}
+			ASSERT(fbp != NULL);
+
+			/*
+			 * Initialize the new block to be empty, and remember
+			 * its first slot as our empty slot.
+			 */
+			free = fbp->data;
+			INT_SET(free->hdr.magic, ARCH_CONVERT, XFS_DIR2_FREE_MAGIC);
+			INT_SET(free->hdr.firstdb, ARCH_CONVERT,
+				(fbno - XFS_DIR2_FREE_FIRSTDB(mp)) *
+				XFS_DIR2_MAX_FREE_BESTS(mp));
+			INT_ZERO(free->hdr.nvalid, ARCH_CONVERT);
+			INT_ZERO(free->hdr.nused, ARCH_CONVERT);
+		} else {
+			free = fbp->data;
+			ASSERT(INT_GET(free->hdr.magic, ARCH_CONVERT) == XFS_DIR2_FREE_MAGIC);
+		}
+
+		/*
+		 * Set the freespace block index from the data block number.
+		 */
+		findex = XFS_DIR2_DB_TO_FDINDEX(mp, dbno);
+		/*
+		 * If it's after the end of the current entries in the
+		 * freespace block, extend that table.
+		 */
+		if (findex >= INT_GET(free->hdr.nvalid, ARCH_CONVERT)) {
+			ASSERT(findex < XFS_DIR2_MAX_FREE_BESTS(mp));
+			INT_SET(free->hdr.nvalid, ARCH_CONVERT, findex + 1);
+			/*
+			 * Tag new entry so nused will go up.
+			 */
+			INT_SET(free->bests[findex], ARCH_CONVERT, NULLDATAOFF);
+		}
+		/*
+		 * If this entry was for an empty data block
+		 * (this should always be true) then update the header.
+		 */
+		if (INT_GET(free->bests[findex], ARCH_CONVERT) == NULLDATAOFF) {
+			INT_MOD(free->hdr.nused, ARCH_CONVERT, +1);
+			xfs_dir2_free_log_header(tp, fbp);
+		}
+		/*
+		 * Update the real value in the table.
+		 * We haven't allocated the data entry yet so this will
+		 * change again.
+		 */
+		data = dbp->data;
+		INT_COPY(free->bests[findex], data->hdr.bestfree[0].length, ARCH_CONVERT);
+		logfree = 1;
+	}
+	/*
+	 * We had a data block so we don't have to make a new one.
+	 */
+	else {
+		/*
+		 * If just checking, we succeeded.
+		 */
+		if (args->justcheck) {
+			if ((fblk == NULL || fblk->bp == NULL) && fbp != NULL)
+				xfs_da_buf_done(fbp);
+			return 0;
+		}
+		/*
+		 * Read the data block in.
+		 */
+		if (unlikely(
+		    error = xfs_da_read_buf(tp, dp, XFS_DIR2_DB_TO_DA(mp, dbno),
+				-1, &dbp, XFS_DATA_FORK))) {
+			if ((fblk == NULL || fblk->bp == NULL) && fbp != NULL)
+				xfs_da_buf_done(fbp);
+			return error;
+		}
+		data = dbp->data;
+		logfree = 0;
+	}
+	ASSERT(INT_GET(data->hdr.bestfree[0].length, ARCH_CONVERT) >= length);
+	/*
+	 * Point to the existing unused space.
+	 */
+	dup = (xfs_dir2_data_unused_t *)
+	      ((char *)data + INT_GET(data->hdr.bestfree[0].offset, ARCH_CONVERT));
+	needscan = needlog = 0;
+	/*
+	 * Mark the first part of the unused space, inuse for us.
+	 */
+	xfs_dir2_data_use_free(tp, dbp, dup,
+		(xfs_dir2_data_aoff_t)((char *)dup - (char *)data), length,
+		&needlog, &needscan);
+	/*
+	 * Fill in the new entry and log it.
+	 */
+	dep = (xfs_dir2_data_entry_t *)dup;
+	INT_SET(dep->inumber, ARCH_CONVERT, args->inumber);
+	dep->namelen = args->namelen;
+	memcpy(dep->name, args->name, dep->namelen);
+	tagp = XFS_DIR2_DATA_ENTRY_TAG_P(dep);
+	INT_SET(*tagp, ARCH_CONVERT, (xfs_dir2_data_off_t)((char *)dep - (char *)data));
+	xfs_dir2_data_log_entry(tp, dbp, dep);
+	/*
+	 * Rescan the block for bestfree if needed.
+	 */
+	if (needscan)
+		xfs_dir2_data_freescan(mp, data, &needlog, NULL);
+	/*
+	 * Log the data block header if needed.
+	 */
+	if (needlog)
+		xfs_dir2_data_log_header(tp, dbp);
+	/*
+	 * If the freespace entry is now wrong, update it.
+	 */
+	if (INT_GET(free->bests[findex], ARCH_CONVERT) != INT_GET(data->hdr.bestfree[0].length, ARCH_CONVERT)) {
+		INT_COPY(free->bests[findex], data->hdr.bestfree[0].length, ARCH_CONVERT);
+		logfree = 1;
+	}
+	/*
+	 * Log the freespace entry if needed.
+	 */
+	if (logfree)
+		xfs_dir2_free_log_bests(tp, fbp, findex, findex);
+	/*
+	 * If the caller didn't hand us the freespace block, drop it.
+	 */
+	if ((fblk == NULL || fblk->bp == NULL) && fbp != NULL)
+		xfs_da_buf_done(fbp);
+	/*
+	 * Return the data block and offset in args, then drop the data block.
+	 */
+	args->blkno = (xfs_dablk_t)dbno;
+	args->index = INT_GET(*tagp, ARCH_CONVERT);
+	xfs_da_buf_done(dbp);
+	return 0;
+}
+
+/*
+ * Lookup an entry in a node-format directory.
+ * All the real work happens in xfs_da_node_lookup_int.
+ * The only real output is the inode number of the entry.
+ */
+int						/* error */
+xfs_dir2_node_lookup(
+	xfs_da_args_t	*args)			/* operation arguments */
+{
+	int		error;			/* error return value */
+	int		i;			/* btree level */
+	int		rval;			/* operation return value */
+	xfs_da_state_t	*state;			/* btree cursor */
+
+	xfs_dir2_trace_args("node_lookup", args);
+	/*
+	 * Allocate and initialize the btree cursor.
+	 */
+	state = xfs_da_state_alloc();
+	state->args = args;
+	state->mp = args->dp->i_mount;
+	state->blocksize = state->mp->m_dirblksize;
+	state->node_ents = state->mp->m_dir_node_ents;
+	/*
+	 * Fill in the path to the entry in the cursor.
+	 */
+	error = xfs_da_node_lookup_int(state, &rval);
+	if (error)
+		rval = error;
+	/*
+	 * Release the btree blocks and leaf block.
+	 */
+	for (i = 0; i < state->path.active; i++) {
+		xfs_da_brelse(args->trans, state->path.blk[i].bp);
+		state->path.blk[i].bp = NULL;
+	}
+	/*
+	 * Release the data block if we have it.
+	 */
+	if (state->extravalid && state->extrablk.bp) {
+		xfs_da_brelse(args->trans, state->extrablk.bp);
+		state->extrablk.bp = NULL;
+	}
+	xfs_da_state_free(state);
+	return rval;
+}
+
+/*
+ * Remove an entry from a node-format directory.
+ */
+int						/* error */
+xfs_dir2_node_removename(
+	xfs_da_args_t		*args)		/* operation arguments */
+{
+	xfs_da_state_blk_t	*blk;		/* leaf block */
+	int			error;		/* error return value */
+	int			rval;		/* operation return value */
+	xfs_da_state_t		*state;		/* btree cursor */
+
+	xfs_dir2_trace_args("node_removename", args);
+	/*
+	 * Allocate and initialize the btree cursor.
+	 */
+	state = xfs_da_state_alloc();
+	state->args = args;
+	state->mp = args->dp->i_mount;
+	state->blocksize = state->mp->m_dirblksize;
+	state->node_ents = state->mp->m_dir_node_ents;
+	/*
+	 * Look up the entry we're deleting, set up the cursor.
+	 */
+	error = xfs_da_node_lookup_int(state, &rval);
+	if (error) {
+		rval = error;
+	}
+	/*
+	 * Didn't find it, upper layer screwed up.
+	 */
+	if (rval != EEXIST) {
+		xfs_da_state_free(state);
+		return rval;
+	}
+	blk = &state->path.blk[state->path.active - 1];
+	ASSERT(blk->magic == XFS_DIR2_LEAFN_MAGIC);
+	ASSERT(state->extravalid);
+	/*
+	 * Remove the leaf and data entries.
+	 * Extrablk refers to the data block.
+	 */
+	error = xfs_dir2_leafn_remove(args, blk->bp, blk->index,
+		&state->extrablk, &rval);
+	if (error) {
+		return error;
+	}
+	/*
+	 * Fix the hash values up the btree.
+	 */
+	xfs_da_fixhashpath(state, &state->path);
+	/*
+	 * If we need to join leaf blocks, do it.
+	 */
+	if (rval && state->path.active > 1)
+		error = xfs_da_join(state);
+	/*
+	 * If no errors so far, try conversion to leaf format.
+	 */
+	if (!error)
+		error = xfs_dir2_node_to_leaf(state);
+	xfs_da_state_free(state);
+	return error;
+}
+
+/*
+ * Replace an entry's inode number in a node-format directory.
+ */
+int						/* error */
+xfs_dir2_node_replace(
+	xfs_da_args_t		*args)		/* operation arguments */
+{
+	xfs_da_state_blk_t	*blk;		/* leaf block */
+	xfs_dir2_data_t		*data;		/* data block structure */
+	xfs_dir2_data_entry_t	*dep;		/* data entry changed */
+	int			error;		/* error return value */
+	int			i;		/* btree level */
+	xfs_ino_t		inum;		/* new inode number */
+	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
+	xfs_dir2_leaf_entry_t	*lep;		/* leaf entry being changed */
+	int			rval;		/* internal return value */
+	xfs_da_state_t		*state;		/* btree cursor */
+
+	xfs_dir2_trace_args("node_replace", args);
+	/*
+	 * Allocate and initialize the btree cursor.
+	 */
+	state = xfs_da_state_alloc();
+	state->args = args;
+	state->mp = args->dp->i_mount;
+	state->blocksize = state->mp->m_dirblksize;
+	state->node_ents = state->mp->m_dir_node_ents;
+	inum = args->inumber;
+	/*
+	 * Lookup the entry to change in the btree.
+	 */
+	error = xfs_da_node_lookup_int(state, &rval);
+	if (error) {
+		rval = error;
+	}
+	/*
+	 * It should be found, since the vnodeops layer has looked it up
+	 * and locked it.  But paranoia is good.
+	 */
+	if (rval == EEXIST) {
+		/*
+		 * Find the leaf entry.
+		 */
+		blk = &state->path.blk[state->path.active - 1];
+		ASSERT(blk->magic == XFS_DIR2_LEAFN_MAGIC);
+		leaf = blk->bp->data;
+		lep = &leaf->ents[blk->index];
+		ASSERT(state->extravalid);
+		/*
+		 * Point to the data entry.
+		 */
+		data = state->extrablk.bp->data;
+		ASSERT(INT_GET(data->hdr.magic, ARCH_CONVERT) == XFS_DIR2_DATA_MAGIC);
+		dep = (xfs_dir2_data_entry_t *)
+		      ((char *)data +
+		       XFS_DIR2_DATAPTR_TO_OFF(state->mp, INT_GET(lep->address, ARCH_CONVERT)));
+		ASSERT(inum != INT_GET(dep->inumber, ARCH_CONVERT));
+		/*
+		 * Fill in the new inode number and log the entry.
+		 */
+		INT_SET(dep->inumber, ARCH_CONVERT, inum);
+		xfs_dir2_data_log_entry(args->trans, state->extrablk.bp, dep);
+		rval = 0;
+	}
+	/*
+	 * Didn't find it, and we're holding a data block.  Drop it.
+	 */
+	else if (state->extravalid) {
+		xfs_da_brelse(args->trans, state->extrablk.bp);
+		state->extrablk.bp = NULL;
+	}
+	/*
+	 * Release all the buffers in the cursor.
+	 */
+	for (i = 0; i < state->path.active; i++) {
+		xfs_da_brelse(args->trans, state->path.blk[i].bp);
+		state->path.blk[i].bp = NULL;
+	}
+	xfs_da_state_free(state);
+	return rval;
+}
+
+/*
+ * Trim off a trailing empty freespace block.
+ * Return (in rvalp) 1 if we did it, 0 if not.
+ */
+int						/* error */
+xfs_dir2_node_trim_free(
+	xfs_da_args_t		*args,		/* operation arguments */
+	xfs_fileoff_t		fo,		/* free block number */
+	int			*rvalp)		/* out: did something */
+{
+	xfs_dabuf_t		*bp;		/* freespace buffer */
+	xfs_inode_t		*dp;		/* incore directory inode */
+	int			error;		/* error return code */
+	xfs_dir2_free_t		*free;		/* freespace structure */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+	xfs_trans_t		*tp;		/* transaction pointer */
+
+	dp = args->dp;
+	mp = dp->i_mount;
+	tp = args->trans;
+	/*
+	 * Read the freespace block.
+	 */
+	if (unlikely(error = xfs_da_read_buf(tp, dp, (xfs_dablk_t)fo, -2, &bp,
+			XFS_DATA_FORK))) {
+		return error;
+	}
+
+	/*
+	 * There can be holes in freespace.  If fo is a hole, there's
+	 * nothing to do.
+	 */
+	if (bp == NULL) {
+		return 0;
+	}
+	free = bp->data;
+	ASSERT(INT_GET(free->hdr.magic, ARCH_CONVERT) == XFS_DIR2_FREE_MAGIC);
+	/*
+	 * If there are used entries, there's nothing to do.
+	 */
+	if (INT_GET(free->hdr.nused, ARCH_CONVERT) > 0) {
+		xfs_da_brelse(tp, bp);
+		*rvalp = 0;
+		return 0;
+	}
+	/*
+	 * Blow the block away.
+	 */
+	if ((error =
+	    xfs_dir2_shrink_inode(args, XFS_DIR2_DA_TO_DB(mp, (xfs_dablk_t)fo),
+		    bp))) {
+		/*
+		 * Can't fail with ENOSPC since that only happens with no
+		 * space reservation, when breaking up an extent into two
+		 * pieces.  This is the last block of an extent.
+		 */
+		ASSERT(error != ENOSPC);
+		xfs_da_brelse(tp, bp);
+		return error;
+	}
+	/*
+	 * Return that we succeeded.
+	 */
+	*rvalp = 1;
+	return 0;
+}
diff --git a/fs/xfs/xfs_dir2_node.h b/fs/xfs/xfs_dir2_node.h
new file mode 100644
index 00000000000000..96db420c7c5cda
--- /dev/null
+++ b/fs/xfs/xfs_dir2_node.h
@@ -0,0 +1,159 @@
+/*
+ * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_DIR2_NODE_H__
+#define	__XFS_DIR2_NODE_H__
+
+/*
+ * Directory version 2, btree node format structures
+ */
+
+struct uio;
+struct xfs_dabuf;
+struct xfs_da_args;
+struct xfs_da_state;
+struct xfs_da_state_blk;
+struct xfs_inode;
+struct xfs_trans;
+
+/*
+ * Constants.
+ */
+
+/*
+ * Offset of the freespace index.
+ */
+#define	XFS_DIR2_FREE_SPACE	2
+#define	XFS_DIR2_FREE_OFFSET	(XFS_DIR2_FREE_SPACE * XFS_DIR2_SPACE_SIZE)
+#define	XFS_DIR2_FREE_FIRSTDB(mp)	\
+	XFS_DIR2_BYTE_TO_DB(mp, XFS_DIR2_FREE_OFFSET)
+
+#define	XFS_DIR2_FREE_MAGIC	0x58443246	/* XD2F */
+
+/*
+ * Structures.
+ */
+typedef	struct xfs_dir2_free_hdr {
+	__uint32_t		magic;		/* XFS_DIR2_FREE_MAGIC */
+	__int32_t		firstdb;	/* db of first entry */
+	__int32_t		nvalid;		/* count of valid entries */
+	__int32_t		nused;		/* count of used entries */
+} xfs_dir2_free_hdr_t;
+
+typedef struct xfs_dir2_free {
+	xfs_dir2_free_hdr_t	hdr;		/* block header */
+	xfs_dir2_data_off_t	bests[1];	/* best free counts */
+						/* unused entries are -1 */
+} xfs_dir2_free_t;
+#define	XFS_DIR2_MAX_FREE_BESTS(mp)	\
+	(((mp)->m_dirblksize - (uint)sizeof(xfs_dir2_free_hdr_t)) / \
+	 (uint)sizeof(xfs_dir2_data_off_t))
+
+/*
+ * Macros.
+ */
+
+/*
+ * Convert data space db to the corresponding free db.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_DB_TO_FDB)
+xfs_dir2_db_t
+xfs_dir2_db_to_fdb(struct xfs_mount *mp, xfs_dir2_db_t db);
+#define	XFS_DIR2_DB_TO_FDB(mp,db)	xfs_dir2_db_to_fdb(mp, db)
+#else
+#define	XFS_DIR2_DB_TO_FDB(mp,db)	\
+	(XFS_DIR2_FREE_FIRSTDB(mp) + (db) / XFS_DIR2_MAX_FREE_BESTS(mp))
+#endif
+
+/*
+ * Convert data space db to the corresponding index in a free db.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_DB_TO_FDINDEX)
+int
+xfs_dir2_db_to_fdindex(struct xfs_mount *mp, xfs_dir2_db_t db);
+#define	XFS_DIR2_DB_TO_FDINDEX(mp,db)	xfs_dir2_db_to_fdindex(mp, db)
+#else
+#define	XFS_DIR2_DB_TO_FDINDEX(mp,db)	((db) % XFS_DIR2_MAX_FREE_BESTS(mp))
+#endif
+
+/*
+ * Functions.
+ */
+
+extern void
+	xfs_dir2_free_log_bests(struct xfs_trans *tp, struct xfs_dabuf *bp,
+				int first, int last);
+
+extern int
+	xfs_dir2_leaf_to_node(struct xfs_da_args *args, struct xfs_dabuf *lbp);
+
+extern xfs_dahash_t
+	xfs_dir2_leafn_lasthash(struct xfs_dabuf *bp, int *count);
+
+extern int
+	xfs_dir2_leafn_lookup_int(struct xfs_dabuf *bp,
+				  struct xfs_da_args *args, int *indexp,
+				  struct xfs_da_state *state);
+
+extern int
+	xfs_dir2_leafn_order(struct xfs_dabuf *leaf1_bp,
+			     struct xfs_dabuf *leaf2_bp);
+
+extern int
+	xfs_dir2_leafn_split(struct xfs_da_state *state,
+			     struct xfs_da_state_blk *oldblk,
+			     struct xfs_da_state_blk *newblk);
+
+extern int
+	xfs_dir2_leafn_toosmall(struct xfs_da_state *state, int *action);
+
+extern void
+	xfs_dir2_leafn_unbalance(struct xfs_da_state *state,
+				 struct xfs_da_state_blk *drop_blk,
+				 struct xfs_da_state_blk *save_blk);
+
+extern int
+	xfs_dir2_node_addname(struct xfs_da_args *args);
+
+extern int
+	xfs_dir2_node_lookup(struct xfs_da_args *args);
+
+extern int
+	xfs_dir2_node_removename(struct xfs_da_args *args);
+
+extern int
+	xfs_dir2_node_replace(struct xfs_da_args *args);
+
+extern int
+	xfs_dir2_node_trim_free(struct xfs_da_args *args, xfs_fileoff_t fo,
+				int *rvalp);
+
+#endif	/* __XFS_DIR2_NODE_H__ */
diff --git a/fs/xfs/xfs_dir2_sf.c b/fs/xfs/xfs_dir2_sf.c
new file mode 100644
index 00000000000000..9e9b3836eb27ff
--- /dev/null
+++ b/fs/xfs/xfs_dir2_sf.c
@@ -0,0 +1,1319 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+/*
+ * xfs_dir2_sf.c
+ * Shortform directory implementation for v2 directories.
+ */
+
+#include "xfs.h"
+
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode_item.h"
+#include "xfs_inode.h"
+#include "xfs_da_btree.h"
+#include "xfs_dir_leaf.h"
+#include "xfs_error.h"
+#include "xfs_dir2_data.h"
+#include "xfs_dir2_leaf.h"
+#include "xfs_dir2_block.h"
+#include "xfs_dir2_trace.h"
+
+/*
+ * Prototypes for internal functions.
+ */
+static void xfs_dir2_sf_addname_easy(xfs_da_args_t *args,
+				     xfs_dir2_sf_entry_t *sfep,
+				     xfs_dir2_data_aoff_t offset,
+				     int new_isize);
+static void xfs_dir2_sf_addname_hard(xfs_da_args_t *args, int objchange,
+				     int new_isize);
+static int xfs_dir2_sf_addname_pick(xfs_da_args_t *args, int objchange,
+				    xfs_dir2_sf_entry_t **sfepp,
+				    xfs_dir2_data_aoff_t *offsetp);
+#ifdef DEBUG
+static void xfs_dir2_sf_check(xfs_da_args_t *args);
+#else
+#define	xfs_dir2_sf_check(args)
+#endif /* DEBUG */
+#if XFS_BIG_INUMS
+static void xfs_dir2_sf_toino4(xfs_da_args_t *args);
+static void xfs_dir2_sf_toino8(xfs_da_args_t *args);
+#endif /* XFS_BIG_INUMS */
+
+/*
+ * Given a block directory (dp/block), calculate its size as a shortform (sf)
+ * directory and a header for the sf directory, if it will fit it the
+ * space currently present in the inode.  If it won't fit, the output
+ * size is too big (but not accurate).
+ */
+int						/* size for sf form */
+xfs_dir2_block_sfsize(
+	xfs_inode_t		*dp,		/* incore inode pointer */
+	xfs_dir2_block_t	*block,		/* block directory data */
+	xfs_dir2_sf_hdr_t	*sfhp)		/* output: header for sf form */
+{
+	xfs_dir2_dataptr_t	addr;		/* data entry address */
+	xfs_dir2_leaf_entry_t	*blp;		/* leaf area of the block */
+	xfs_dir2_block_tail_t	*btp;		/* tail area of the block */
+	int			count;		/* shortform entry count */
+	xfs_dir2_data_entry_t	*dep;		/* data entry in the block */
+	int			i;		/* block entry index */
+	int			i8count;	/* count of big-inode entries */
+	int			isdot;		/* entry is "." */
+	int			isdotdot;	/* entry is ".." */
+	xfs_mount_t		*mp;		/* mount structure pointer */
+	int			namelen;	/* total name bytes */
+	xfs_ino_t		parent;		/* parent inode number */
+	int			size=0;		/* total computed size */
+
+	mp = dp->i_mount;
+
+	count = i8count = namelen = 0;
+	btp = XFS_DIR2_BLOCK_TAIL_P(mp, block);
+	blp = XFS_DIR2_BLOCK_LEAF_P_ARCH(btp, ARCH_CONVERT);
+
+	/*
+	 * Iterate over the block's data entries by using the leaf pointers.
+	 */
+	for (i = 0; i < INT_GET(btp->count, ARCH_CONVERT); i++) {
+		if ((addr = INT_GET(blp[i].address, ARCH_CONVERT)) == XFS_DIR2_NULL_DATAPTR)
+			continue;
+		/*
+		 * Calculate the pointer to the entry at hand.
+		 */
+		dep = (xfs_dir2_data_entry_t *)
+		      ((char *)block + XFS_DIR2_DATAPTR_TO_OFF(mp, addr));
+		/*
+		 * Detect . and .., so we can special-case them.
+		 * . is not included in sf directories.
+		 * .. is included by just the parent inode number.
+		 */
+		isdot = dep->namelen == 1 && dep->name[0] == '.';
+		isdotdot =
+			dep->namelen == 2 &&
+			dep->name[0] == '.' && dep->name[1] == '.';
+#if XFS_BIG_INUMS
+		if (!isdot)
+			i8count += INT_GET(dep->inumber, ARCH_CONVERT) > XFS_DIR2_MAX_SHORT_INUM;
+#endif
+		if (!isdot && !isdotdot) {
+			count++;
+			namelen += dep->namelen;
+		} else if (isdotdot)
+			parent = INT_GET(dep->inumber, ARCH_CONVERT);
+		/*
+		 * Calculate the new size, see if we should give up yet.
+		 */
+		size = XFS_DIR2_SF_HDR_SIZE(i8count) +		/* header */
+		       count +					/* namelen */
+		       count * (uint)sizeof(xfs_dir2_sf_off_t) + /* offset */
+		       namelen +				/* name */
+		       (i8count ?				/* inumber */
+				(uint)sizeof(xfs_dir2_ino8_t) * count :
+				(uint)sizeof(xfs_dir2_ino4_t) * count);
+		if (size > XFS_IFORK_DSIZE(dp))
+			return size;		/* size value is a failure */
+	}
+	/*
+	 * Create the output header, if it worked.
+	 */
+	sfhp->count = count;
+	sfhp->i8count = i8count;
+	XFS_DIR2_SF_PUT_INUMBER_ARCH((xfs_dir2_sf_t *)sfhp, &parent, &sfhp->parent, ARCH_CONVERT);
+	return size;
+}
+
+/*
+ * Convert a block format directory to shortform.
+ * Caller has already checked that it will fit, and built us a header.
+ */
+int						/* error */
+xfs_dir2_block_to_sf(
+	xfs_da_args_t		*args,		/* operation arguments */
+	xfs_dabuf_t		*bp,		/* block buffer */
+	int			size,		/* shortform directory size */
+	xfs_dir2_sf_hdr_t	*sfhp)		/* shortform directory hdr */
+{
+	xfs_dir2_block_t	*block;		/* block structure */
+	xfs_dir2_block_tail_t	*btp;		/* block tail pointer */
+	xfs_dir2_data_entry_t	*dep;		/* data entry pointer */
+	xfs_inode_t		*dp;		/* incore directory inode */
+	xfs_dir2_data_unused_t	*dup;		/* unused data pointer */
+	char			*endptr;	/* end of data entries */
+	int			error;		/* error return value */
+	int			logflags;	/* inode logging flags */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+	char			*ptr;		/* current data pointer */
+	xfs_dir2_sf_entry_t	*sfep;		/* shortform entry */
+	xfs_dir2_sf_t		*sfp;		/* shortform structure */
+	xfs_ino_t               temp;
+
+	xfs_dir2_trace_args_sb("block_to_sf", args, size, bp);
+	dp = args->dp;
+	mp = dp->i_mount;
+
+	/*
+	 * Make a copy of the block data, so we can shrink the inode
+	 * and add local data.
+	 */
+	block = kmem_alloc(mp->m_dirblksize, KM_SLEEP);
+	memcpy(block, bp->data, mp->m_dirblksize);
+	logflags = XFS_ILOG_CORE;
+	if ((error = xfs_dir2_shrink_inode(args, mp->m_dirdatablk, bp))) {
+		ASSERT(error != ENOSPC);
+		goto out;
+	}
+	/*
+	 * The buffer is now unconditionally gone, whether
+	 * xfs_dir2_shrink_inode worked or not.
+	 *
+	 * Convert the inode to local format.
+	 */
+	dp->i_df.if_flags &= ~XFS_IFEXTENTS;
+	dp->i_df.if_flags |= XFS_IFINLINE;
+	dp->i_d.di_format = XFS_DINODE_FMT_LOCAL;
+	ASSERT(dp->i_df.if_bytes == 0);
+	xfs_idata_realloc(dp, size, XFS_DATA_FORK);
+	logflags |= XFS_ILOG_DDATA;
+	/*
+	 * Copy the header into the newly allocate local space.
+	 */
+	sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data;
+	memcpy(sfp, sfhp, XFS_DIR2_SF_HDR_SIZE(sfhp->i8count));
+	dp->i_d.di_size = size;
+	/*
+	 * Set up to loop over the block's entries.
+	 */
+	btp = XFS_DIR2_BLOCK_TAIL_P(mp, block);
+	ptr = (char *)block->u;
+	endptr = (char *)XFS_DIR2_BLOCK_LEAF_P_ARCH(btp, ARCH_CONVERT);
+	sfep = XFS_DIR2_SF_FIRSTENTRY(sfp);
+	/*
+	 * Loop over the active and unused entries.
+	 * Stop when we reach the leaf/tail portion of the block.
+	 */
+	while (ptr < endptr) {
+		/*
+		 * If it's unused, just skip over it.
+		 */
+		dup = (xfs_dir2_data_unused_t *)ptr;
+		if (INT_GET(dup->freetag, ARCH_CONVERT) == XFS_DIR2_DATA_FREE_TAG) {
+			ptr += INT_GET(dup->length, ARCH_CONVERT);
+			continue;
+		}
+		dep = (xfs_dir2_data_entry_t *)ptr;
+		/*
+		 * Skip .
+		 */
+		if (dep->namelen == 1 && dep->name[0] == '.')
+			ASSERT(INT_GET(dep->inumber, ARCH_CONVERT) == dp->i_ino);
+		/*
+		 * Skip .., but make sure the inode number is right.
+		 */
+		else if (dep->namelen == 2 &&
+			 dep->name[0] == '.' && dep->name[1] == '.')
+			ASSERT(INT_GET(dep->inumber, ARCH_CONVERT) ==
+			       XFS_DIR2_SF_GET_INUMBER_ARCH(sfp, &sfp->hdr.parent, ARCH_CONVERT));
+		/*
+		 * Normal entry, copy it into shortform.
+		 */
+		else {
+			sfep->namelen = dep->namelen;
+			XFS_DIR2_SF_PUT_OFFSET_ARCH(sfep,
+				(xfs_dir2_data_aoff_t)
+				((char *)dep - (char *)block), ARCH_CONVERT);
+			memcpy(sfep->name, dep->name, dep->namelen);
+			temp=INT_GET(dep->inumber, ARCH_CONVERT);
+			XFS_DIR2_SF_PUT_INUMBER_ARCH(sfp, &temp,
+				XFS_DIR2_SF_INUMBERP(sfep), ARCH_CONVERT);
+			sfep = XFS_DIR2_SF_NEXTENTRY(sfp, sfep);
+		}
+		ptr += XFS_DIR2_DATA_ENTSIZE(dep->namelen);
+	}
+	ASSERT((char *)sfep - (char *)sfp == size);
+	xfs_dir2_sf_check(args);
+out:
+	xfs_trans_log_inode(args->trans, dp, logflags);
+	kmem_free(block, mp->m_dirblksize);
+	return error;
+}
+
+/*
+ * Add a name to a shortform directory.
+ * There are two algorithms, "easy" and "hard" which we decide on
+ * before changing anything.
+ * Convert to block form if necessary, if the new entry won't fit.
+ */
+int						/* error */
+xfs_dir2_sf_addname(
+	xfs_da_args_t		*args)		/* operation arguments */
+{
+	int			add_entsize;	/* size of the new entry */
+	xfs_inode_t		*dp;		/* incore directory inode */
+	int			error;		/* error return value */
+	int			incr_isize;	/* total change in size */
+	int			new_isize;	/* di_size after adding name */
+	int			objchange;	/* changing to 8-byte inodes */
+	xfs_dir2_data_aoff_t	offset;		/* offset for new entry */
+	int			old_isize;	/* di_size before adding name */
+	int			pick;		/* which algorithm to use */
+	xfs_dir2_sf_t		*sfp;		/* shortform structure */
+	xfs_dir2_sf_entry_t	*sfep;		/* shortform entry */
+
+	xfs_dir2_trace_args("sf_addname", args);
+	ASSERT(xfs_dir2_sf_lookup(args) == ENOENT);
+	dp = args->dp;
+	ASSERT(dp->i_df.if_flags & XFS_IFINLINE);
+	/*
+	 * Make sure the shortform value has some of its header.
+	 */
+	if (dp->i_d.di_size < offsetof(xfs_dir2_sf_hdr_t, parent)) {
+		ASSERT(XFS_FORCED_SHUTDOWN(dp->i_mount));
+		return XFS_ERROR(EIO);
+	}
+	ASSERT(dp->i_df.if_bytes == dp->i_d.di_size);
+	ASSERT(dp->i_df.if_u1.if_data != NULL);
+	sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data;
+	ASSERT(dp->i_d.di_size >= XFS_DIR2_SF_HDR_SIZE(sfp->hdr.i8count));
+	/*
+	 * Compute entry (and change in) size.
+	 */
+	add_entsize = XFS_DIR2_SF_ENTSIZE_BYNAME(sfp, args->namelen);
+	incr_isize = add_entsize;
+	objchange = 0;
+#if XFS_BIG_INUMS
+	/*
+	 * Do we have to change to 8 byte inodes?
+	 */
+	if (args->inumber > XFS_DIR2_MAX_SHORT_INUM && sfp->hdr.i8count == 0) {
+		/*
+		 * Yes, adjust the entry size and the total size.
+		 */
+		add_entsize +=
+			(uint)sizeof(xfs_dir2_ino8_t) -
+			(uint)sizeof(xfs_dir2_ino4_t);
+		incr_isize +=
+			(sfp->hdr.count + 2) *
+			((uint)sizeof(xfs_dir2_ino8_t) -
+			 (uint)sizeof(xfs_dir2_ino4_t));
+		objchange = 1;
+	}
+#endif
+	old_isize = (int)dp->i_d.di_size;
+	new_isize = old_isize + incr_isize;
+	/*
+	 * Won't fit as shortform any more (due to size),
+	 * or the pick routine says it won't (due to offset values).
+	 */
+	if (new_isize > XFS_IFORK_DSIZE(dp) ||
+	    (pick =
+	     xfs_dir2_sf_addname_pick(args, objchange, &sfep, &offset)) == 0) {
+		/*
+		 * Just checking or no space reservation, it doesn't fit.
+		 */
+		if (args->justcheck || args->total == 0)
+			return XFS_ERROR(ENOSPC);
+		/*
+		 * Convert to block form then add the name.
+		 */
+		error = xfs_dir2_sf_to_block(args);
+		if (error)
+			return error;
+		return xfs_dir2_block_addname(args);
+	}
+	/*
+	 * Just checking, it fits.
+	 */
+	if (args->justcheck)
+		return 0;
+	/*
+	 * Do it the easy way - just add it at the end.
+	 */
+	if (pick == 1)
+		xfs_dir2_sf_addname_easy(args, sfep, offset, new_isize);
+	/*
+	 * Do it the hard way - look for a place to insert the new entry.
+	 * Convert to 8 byte inode numbers first if necessary.
+	 */
+	else {
+		ASSERT(pick == 2);
+#if XFS_BIG_INUMS
+		if (objchange)
+			xfs_dir2_sf_toino8(args);
+#endif
+		xfs_dir2_sf_addname_hard(args, objchange, new_isize);
+	}
+	xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE | XFS_ILOG_DDATA);
+	return 0;
+}
+
+/*
+ * Add the new entry the "easy" way.
+ * This is copying the old directory and adding the new entry at the end.
+ * Since it's sorted by "offset" we need room after the last offset
+ * that's already there, and then room to convert to a block directory.
+ * This is already checked by the pick routine.
+ */
+static void
+xfs_dir2_sf_addname_easy(
+	xfs_da_args_t		*args,		/* operation arguments */
+	xfs_dir2_sf_entry_t	*sfep,		/* pointer to new entry */
+	xfs_dir2_data_aoff_t	offset,		/* offset to use for new ent */
+	int			new_isize)	/* new directory size */
+{
+	int			byteoff;	/* byte offset in sf dir */
+	xfs_inode_t		*dp;		/* incore directory inode */
+	xfs_dir2_sf_t		*sfp;		/* shortform structure */
+
+	dp = args->dp;
+
+	sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data;
+	byteoff = (int)((char *)sfep - (char *)sfp);
+	/*
+	 * Grow the in-inode space.
+	 */
+	xfs_idata_realloc(dp, XFS_DIR2_SF_ENTSIZE_BYNAME(sfp, args->namelen),
+		XFS_DATA_FORK);
+	/*
+	 * Need to set up again due to realloc of the inode data.
+	 */
+	sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data;
+	sfep = (xfs_dir2_sf_entry_t *)((char *)sfp + byteoff);
+	/*
+	 * Fill in the new entry.
+	 */
+	sfep->namelen = args->namelen;
+	XFS_DIR2_SF_PUT_OFFSET_ARCH(sfep, offset, ARCH_CONVERT);
+	memcpy(sfep->name, args->name, sfep->namelen);
+	XFS_DIR2_SF_PUT_INUMBER_ARCH(sfp, &args->inumber,
+		XFS_DIR2_SF_INUMBERP(sfep), ARCH_CONVERT);
+	/*
+	 * Update the header and inode.
+	 */
+	sfp->hdr.count++;
+#if XFS_BIG_INUMS
+	if (args->inumber > XFS_DIR2_MAX_SHORT_INUM)
+		sfp->hdr.i8count++;
+#endif
+	dp->i_d.di_size = new_isize;
+	xfs_dir2_sf_check(args);
+}
+
+/*
+ * Add the new entry the "hard" way.
+ * The caller has already converted to 8 byte inode numbers if necessary,
+ * in which case we need to leave the i8count at 1.
+ * Find a hole that the new entry will fit into, and copy
+ * the first part of the entries, the new entry, and the last part of
+ * the entries.
+ */
+/* ARGSUSED */
+static void
+xfs_dir2_sf_addname_hard(
+	xfs_da_args_t		*args,		/* operation arguments */
+	int			objchange,	/* changing inode number size */
+	int			new_isize)	/* new directory size */
+{
+	int			add_datasize;	/* data size need for new ent */
+	char			*buf;		/* buffer for old */
+	xfs_inode_t		*dp;		/* incore directory inode */
+	int			eof;		/* reached end of old dir */
+	int			nbytes;		/* temp for byte copies */
+	xfs_dir2_data_aoff_t	new_offset;	/* next offset value */
+	xfs_dir2_data_aoff_t	offset;		/* current offset value */
+	int			old_isize;	/* previous di_size */
+	xfs_dir2_sf_entry_t	*oldsfep;	/* entry in original dir */
+	xfs_dir2_sf_t		*oldsfp;	/* original shortform dir */
+	xfs_dir2_sf_entry_t	*sfep;		/* entry in new dir */
+	xfs_dir2_sf_t		*sfp;		/* new shortform dir */
+
+	/*
+	 * Copy the old directory to the stack buffer.
+	 */
+	dp = args->dp;
+
+	sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data;
+	old_isize = (int)dp->i_d.di_size;
+	buf = kmem_alloc(old_isize, KM_SLEEP);
+	oldsfp = (xfs_dir2_sf_t *)buf;
+	memcpy(oldsfp, sfp, old_isize);
+	/*
+	 * Loop over the old directory finding the place we're going
+	 * to insert the new entry.
+	 * If it's going to end up at the end then oldsfep will point there.
+	 */
+	for (offset = XFS_DIR2_DATA_FIRST_OFFSET,
+	      oldsfep = XFS_DIR2_SF_FIRSTENTRY(oldsfp),
+	      add_datasize = XFS_DIR2_DATA_ENTSIZE(args->namelen),
+	      eof = (char *)oldsfep == &buf[old_isize];
+	     !eof;
+	     offset = new_offset + XFS_DIR2_DATA_ENTSIZE(oldsfep->namelen),
+	      oldsfep = XFS_DIR2_SF_NEXTENTRY(oldsfp, oldsfep),
+	      eof = (char *)oldsfep == &buf[old_isize]) {
+		new_offset = XFS_DIR2_SF_GET_OFFSET_ARCH(oldsfep, ARCH_CONVERT);
+		if (offset + add_datasize <= new_offset)
+			break;
+	}
+	/*
+	 * Get rid of the old directory, then allocate space for
+	 * the new one.  We do this so xfs_idata_realloc won't copy
+	 * the data.
+	 */
+	xfs_idata_realloc(dp, -old_isize, XFS_DATA_FORK);
+	xfs_idata_realloc(dp, new_isize, XFS_DATA_FORK);
+	/*
+	 * Reset the pointer since the buffer was reallocated.
+	 */
+	sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data;
+	/*
+	 * Copy the first part of the directory, including the header.
+	 */
+	nbytes = (int)((char *)oldsfep - (char *)oldsfp);
+	memcpy(sfp, oldsfp, nbytes);
+	sfep = (xfs_dir2_sf_entry_t *)((char *)sfp + nbytes);
+	/*
+	 * Fill in the new entry, and update the header counts.
+	 */
+	sfep->namelen = args->namelen;
+	XFS_DIR2_SF_PUT_OFFSET_ARCH(sfep, offset, ARCH_CONVERT);
+	memcpy(sfep->name, args->name, sfep->namelen);
+	XFS_DIR2_SF_PUT_INUMBER_ARCH(sfp, &args->inumber,
+		XFS_DIR2_SF_INUMBERP(sfep), ARCH_CONVERT);
+	sfp->hdr.count++;
+#if XFS_BIG_INUMS
+	if (args->inumber > XFS_DIR2_MAX_SHORT_INUM && !objchange)
+		sfp->hdr.i8count++;
+#endif
+	/*
+	 * If there's more left to copy, do that.
+	 */
+	if (!eof) {
+		sfep = XFS_DIR2_SF_NEXTENTRY(sfp, sfep);
+		memcpy(sfep, oldsfep, old_isize - nbytes);
+	}
+	kmem_free(buf, old_isize);
+	dp->i_d.di_size = new_isize;
+	xfs_dir2_sf_check(args);
+}
+
+/*
+ * Decide if the new entry will fit at all.
+ * If it will fit, pick between adding the new entry to the end (easy)
+ * or somewhere else (hard).
+ * Return 0 (won't fit), 1 (easy), 2 (hard).
+ */
+/*ARGSUSED*/
+static int					/* pick result */
+xfs_dir2_sf_addname_pick(
+	xfs_da_args_t		*args,		/* operation arguments */
+	int			objchange,	/* inode # size changes */
+	xfs_dir2_sf_entry_t	**sfepp,	/* out(1): new entry ptr */
+	xfs_dir2_data_aoff_t	*offsetp)	/* out(1): new offset */
+{
+	xfs_inode_t		*dp;		/* incore directory inode */
+	int			holefit;	/* found hole it will fit in */
+	int			i;		/* entry number */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+	xfs_dir2_data_aoff_t	offset;		/* data block offset */
+	xfs_dir2_sf_entry_t	*sfep;		/* shortform entry */
+	xfs_dir2_sf_t		*sfp;		/* shortform structure */
+	int			size;		/* entry's data size */
+	int			used;		/* data bytes used */
+
+	dp = args->dp;
+	mp = dp->i_mount;
+
+	sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data;
+	size = XFS_DIR2_DATA_ENTSIZE(args->namelen);
+	offset = XFS_DIR2_DATA_FIRST_OFFSET;
+	sfep = XFS_DIR2_SF_FIRSTENTRY(sfp);
+	holefit = 0;
+	/*
+	 * Loop over sf entries.
+	 * Keep track of data offset and whether we've seen a place
+	 * to insert the new entry.
+	 */
+	for (i = 0; i < sfp->hdr.count; i++) {
+		if (!holefit)
+			holefit = offset + size <= XFS_DIR2_SF_GET_OFFSET_ARCH(sfep, ARCH_CONVERT);
+		offset = XFS_DIR2_SF_GET_OFFSET_ARCH(sfep, ARCH_CONVERT) +
+			 XFS_DIR2_DATA_ENTSIZE(sfep->namelen);
+		sfep = XFS_DIR2_SF_NEXTENTRY(sfp, sfep);
+	}
+	/*
+	 * Calculate data bytes used excluding the new entry, if this
+	 * was a data block (block form directory).
+	 */
+	used = offset +
+	       (sfp->hdr.count + 3) * (uint)sizeof(xfs_dir2_leaf_entry_t) +
+	       (uint)sizeof(xfs_dir2_block_tail_t);
+	/*
+	 * If it won't fit in a block form then we can't insert it,
+	 * we'll go back, convert to block, then try the insert and convert
+	 * to leaf.
+	 */
+	if (used + (holefit ? 0 : size) > mp->m_dirblksize)
+		return 0;
+	/*
+	 * If changing the inode number size, do it the hard way.
+	 */
+#if XFS_BIG_INUMS
+	if (objchange) {
+		return 2;
+	}
+#else
+	ASSERT(objchange == 0);
+#endif
+	/*
+	 * If it won't fit at the end then do it the hard way (use the hole).
+	 */
+	if (used + size > mp->m_dirblksize)
+		return 2;
+	/*
+	 * Do it the easy way.
+	 */
+	*sfepp = sfep;
+	*offsetp = offset;
+	return 1;
+}
+
+#ifdef DEBUG
+/*
+ * Check consistency of shortform directory, assert if bad.
+ */
+static void
+xfs_dir2_sf_check(
+	xfs_da_args_t		*args)		/* operation arguments */
+{
+	xfs_inode_t		*dp;		/* incore directory inode */
+	int			i;		/* entry number */
+	int			i8count;	/* number of big inode#s */
+	xfs_ino_t		ino;		/* entry inode number */
+	int			offset;		/* data offset */
+	xfs_dir2_sf_entry_t	*sfep;		/* shortform dir entry */
+	xfs_dir2_sf_t		*sfp;		/* shortform structure */
+
+	dp = args->dp;
+
+	sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data;
+	offset = XFS_DIR2_DATA_FIRST_OFFSET;
+	ino = XFS_DIR2_SF_GET_INUMBER_ARCH(sfp, &sfp->hdr.parent, ARCH_CONVERT);
+	i8count = ino > XFS_DIR2_MAX_SHORT_INUM;
+
+	for (i = 0, sfep = XFS_DIR2_SF_FIRSTENTRY(sfp);
+	     i < sfp->hdr.count;
+	     i++, sfep = XFS_DIR2_SF_NEXTENTRY(sfp, sfep)) {
+		ASSERT(XFS_DIR2_SF_GET_OFFSET_ARCH(sfep, ARCH_CONVERT) >= offset);
+		ino = XFS_DIR2_SF_GET_INUMBER_ARCH(sfp, XFS_DIR2_SF_INUMBERP(sfep), ARCH_CONVERT);
+		i8count += ino > XFS_DIR2_MAX_SHORT_INUM;
+		offset =
+			XFS_DIR2_SF_GET_OFFSET_ARCH(sfep, ARCH_CONVERT) +
+			XFS_DIR2_DATA_ENTSIZE(sfep->namelen);
+	}
+	ASSERT(i8count == sfp->hdr.i8count);
+	ASSERT(XFS_BIG_INUMS || i8count == 0);
+	ASSERT((char *)sfep - (char *)sfp == dp->i_d.di_size);
+	ASSERT(offset +
+	       (sfp->hdr.count + 2) * (uint)sizeof(xfs_dir2_leaf_entry_t) +
+	       (uint)sizeof(xfs_dir2_block_tail_t) <=
+	       dp->i_mount->m_dirblksize);
+}
+#endif	/* DEBUG */
+
+/*
+ * Create a new (shortform) directory.
+ */
+int					/* error, always 0 */
+xfs_dir2_sf_create(
+	xfs_da_args_t	*args,		/* operation arguments */
+	xfs_ino_t	pino)		/* parent inode number */
+{
+	xfs_inode_t	*dp;		/* incore directory inode */
+	int		i8count;	/* parent inode is an 8-byte number */
+	xfs_dir2_sf_t	*sfp;		/* shortform structure */
+	int		size;		/* directory size */
+
+	xfs_dir2_trace_args_i("sf_create", args, pino);
+	dp = args->dp;
+
+	ASSERT(dp != NULL);
+	ASSERT(dp->i_d.di_size == 0);
+	/*
+	 * If it's currently a zero-length extent file,
+	 * convert it to local format.
+	 */
+	if (dp->i_d.di_format == XFS_DINODE_FMT_EXTENTS) {
+		dp->i_df.if_flags &= ~XFS_IFEXTENTS;	/* just in case */
+		dp->i_d.di_format = XFS_DINODE_FMT_LOCAL;
+		xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE);
+		dp->i_df.if_flags |= XFS_IFINLINE;
+	}
+	ASSERT(dp->i_df.if_flags & XFS_IFINLINE);
+	ASSERT(dp->i_df.if_bytes == 0);
+	i8count = pino > XFS_DIR2_MAX_SHORT_INUM;
+	size = XFS_DIR2_SF_HDR_SIZE(i8count);
+	/*
+	 * Make a buffer for the data.
+	 */
+	xfs_idata_realloc(dp, size, XFS_DATA_FORK);
+	/*
+	 * Fill in the header,
+	 */
+	sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data;
+	sfp->hdr.i8count = i8count;
+	/*
+	 * Now can put in the inode number, since i8count is set.
+	 */
+	XFS_DIR2_SF_PUT_INUMBER_ARCH(sfp, &pino, &sfp->hdr.parent, ARCH_CONVERT);
+	sfp->hdr.count = 0;
+	dp->i_d.di_size = size;
+	xfs_dir2_sf_check(args);
+	xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE | XFS_ILOG_DDATA);
+	return 0;
+}
+
+int						/* error */
+xfs_dir2_sf_getdents(
+	xfs_inode_t		*dp,		/* incore directory inode */
+	uio_t			*uio,		/* caller's buffer control */
+	int			*eofp,		/* eof reached? (out) */
+	xfs_dirent_t		*dbp,		/* caller's buffer */
+	xfs_dir2_put_t		put)		/* abi's formatting function */
+{
+	int			error;		/* error return value */
+	int			i;		/* shortform entry number */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+	xfs_dir2_dataptr_t	off;		/* current entry's offset */
+	xfs_dir2_put_args_t	p;		/* arg package for put rtn */
+	xfs_dir2_sf_entry_t	*sfep;		/* shortform directory entry */
+	xfs_dir2_sf_t		*sfp;		/* shortform structure */
+	xfs_off_t			dir_offset;
+
+	mp = dp->i_mount;
+
+	ASSERT(dp->i_df.if_flags & XFS_IFINLINE);
+	/*
+	 * Give up if the directory is way too short.
+	 */
+	if (dp->i_d.di_size < offsetof(xfs_dir2_sf_hdr_t, parent)) {
+		ASSERT(XFS_FORCED_SHUTDOWN(mp));
+		return XFS_ERROR(EIO);
+	}
+
+	dir_offset = uio->uio_offset;
+
+	ASSERT(dp->i_df.if_bytes == dp->i_d.di_size);
+	ASSERT(dp->i_df.if_u1.if_data != NULL);
+
+	sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data;
+
+	ASSERT(dp->i_d.di_size >= XFS_DIR2_SF_HDR_SIZE(sfp->hdr.i8count));
+
+	/*
+	 * If the block number in the offset is out of range, we're done.
+	 */
+	if (XFS_DIR2_DATAPTR_TO_DB(mp, dir_offset) > mp->m_dirdatablk) {
+		*eofp = 1;
+		return 0;
+	}
+
+	/*
+	 * Set up putargs structure.
+	 */
+	p.dbp = dbp;
+	p.put = put;
+	p.uio = uio;
+	/*
+	 * Put . entry unless we're starting past it.
+	 */
+	if (dir_offset <=
+		    XFS_DIR2_DB_OFF_TO_DATAPTR(mp, mp->m_dirdatablk,
+					       XFS_DIR2_DATA_DOT_OFFSET)) {
+		p.cook = XFS_DIR2_DB_OFF_TO_DATAPTR(mp, 0,
+						XFS_DIR2_DATA_DOTDOT_OFFSET);
+		p.ino = dp->i_ino;
+#if XFS_BIG_INUMS
+		p.ino += mp->m_inoadd;
+#endif
+		p.name = ".";
+		p.namelen = 1;
+
+		error = p.put(&p);
+
+		if (!p.done) {
+			uio->uio_offset =
+				XFS_DIR2_DB_OFF_TO_DATAPTR(mp, mp->m_dirdatablk,
+						XFS_DIR2_DATA_DOT_OFFSET);
+			return error;
+		}
+	}
+
+	/*
+	 * Put .. entry unless we're starting past it.
+	 */
+	if (dir_offset <=
+		    XFS_DIR2_DB_OFF_TO_DATAPTR(mp, mp->m_dirdatablk,
+					       XFS_DIR2_DATA_DOTDOT_OFFSET)) {
+		p.cook = XFS_DIR2_DB_OFF_TO_DATAPTR(mp, mp->m_dirdatablk,
+						XFS_DIR2_DATA_FIRST_OFFSET);
+		p.ino = XFS_DIR2_SF_GET_INUMBER_ARCH(sfp, &sfp->hdr.parent,
+						ARCH_CONVERT);
+#if XFS_BIG_INUMS
+		p.ino += mp->m_inoadd;
+#endif
+		p.name = "..";
+		p.namelen = 2;
+
+		error = p.put(&p);
+
+		if (!p.done) {
+			uio->uio_offset =
+				XFS_DIR2_DB_OFF_TO_DATAPTR(mp, mp->m_dirdatablk,
+					XFS_DIR2_DATA_DOTDOT_OFFSET);
+			return error;
+		}
+	}
+
+	/*
+	 * Loop while there are more entries and put'ing works.
+	 */
+	for (i = 0, sfep = XFS_DIR2_SF_FIRSTENTRY(sfp);
+		     i < sfp->hdr.count;
+			     i++, sfep = XFS_DIR2_SF_NEXTENTRY(sfp, sfep)) {
+
+		off = XFS_DIR2_DB_OFF_TO_DATAPTR(mp, mp->m_dirdatablk,
+				XFS_DIR2_SF_GET_OFFSET_ARCH(sfep, ARCH_CONVERT));
+
+		if (dir_offset > off)
+			continue;
+
+		p.namelen = sfep->namelen;
+
+		p.cook = XFS_DIR2_DB_OFF_TO_DATAPTR(mp, mp->m_dirdatablk,
+			XFS_DIR2_SF_GET_OFFSET_ARCH(sfep, ARCH_CONVERT) +
+			XFS_DIR2_DATA_ENTSIZE(p.namelen));
+
+		p.ino = XFS_DIR2_SF_GET_INUMBER_ARCH(sfp,
+				XFS_DIR2_SF_INUMBERP(sfep), ARCH_CONVERT);
+#if XFS_BIG_INUMS
+		p.ino += mp->m_inoadd;
+#endif
+		p.name = (char *)sfep->name;
+
+		error = p.put(&p);
+
+		if (!p.done) {
+			uio->uio_offset = off;
+			return error;
+		}
+	}
+
+	/*
+	 * They all fit.
+	 */
+	*eofp = 1;
+
+	uio->uio_offset =
+		XFS_DIR2_DB_OFF_TO_DATAPTR(mp, mp->m_dirdatablk + 1, 0);
+
+	return 0;
+}
+
+/*
+ * Lookup an entry in a shortform directory.
+ * Returns EEXIST if found, ENOENT if not found.
+ */
+int						/* error */
+xfs_dir2_sf_lookup(
+	xfs_da_args_t		*args)		/* operation arguments */
+{
+	xfs_inode_t		*dp;		/* incore directory inode */
+	int			i;		/* entry index */
+	xfs_dir2_sf_entry_t	*sfep;		/* shortform directory entry */
+	xfs_dir2_sf_t		*sfp;		/* shortform structure */
+
+	xfs_dir2_trace_args("sf_lookup", args);
+	xfs_dir2_sf_check(args);
+	dp = args->dp;
+
+	ASSERT(dp->i_df.if_flags & XFS_IFINLINE);
+	/*
+	 * Bail out if the directory is way too short.
+	 */
+	if (dp->i_d.di_size < offsetof(xfs_dir2_sf_hdr_t, parent)) {
+		ASSERT(XFS_FORCED_SHUTDOWN(dp->i_mount));
+		return XFS_ERROR(EIO);
+	}
+	ASSERT(dp->i_df.if_bytes == dp->i_d.di_size);
+	ASSERT(dp->i_df.if_u1.if_data != NULL);
+	sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data;
+	ASSERT(dp->i_d.di_size >= XFS_DIR2_SF_HDR_SIZE(sfp->hdr.i8count));
+	/*
+	 * Special case for .
+	 */
+	if (args->namelen == 1 && args->name[0] == '.') {
+		args->inumber = dp->i_ino;
+		return XFS_ERROR(EEXIST);
+	}
+	/*
+	 * Special case for ..
+	 */
+	if (args->namelen == 2 &&
+	    args->name[0] == '.' && args->name[1] == '.') {
+		args->inumber = XFS_DIR2_SF_GET_INUMBER_ARCH(sfp, &sfp->hdr.parent, ARCH_CONVERT);
+		return XFS_ERROR(EEXIST);
+	}
+	/*
+	 * Loop over all the entries trying to match ours.
+	 */
+	for (i = 0, sfep = XFS_DIR2_SF_FIRSTENTRY(sfp);
+	     i < sfp->hdr.count;
+	     i++, sfep = XFS_DIR2_SF_NEXTENTRY(sfp, sfep)) {
+		if (sfep->namelen == args->namelen &&
+		    sfep->name[0] == args->name[0] &&
+		    memcmp(args->name, sfep->name, args->namelen) == 0) {
+			args->inumber =
+				XFS_DIR2_SF_GET_INUMBER_ARCH(sfp,
+					XFS_DIR2_SF_INUMBERP(sfep), ARCH_CONVERT);
+			return XFS_ERROR(EEXIST);
+		}
+	}
+	/*
+	 * Didn't find it.
+	 */
+	ASSERT(args->oknoent);
+	return XFS_ERROR(ENOENT);
+}
+
+/*
+ * Remove an entry from a shortform directory.
+ */
+int						/* error */
+xfs_dir2_sf_removename(
+	xfs_da_args_t		*args)
+{
+	int			byteoff;	/* offset of removed entry */
+	xfs_inode_t		*dp;		/* incore directory inode */
+	int			entsize;	/* this entry's size */
+	int			i;		/* shortform entry index */
+	int			newsize;	/* new inode size */
+	int			oldsize;	/* old inode size */
+	xfs_dir2_sf_entry_t	*sfep;		/* shortform directory entry */
+	xfs_dir2_sf_t		*sfp;		/* shortform structure */
+
+	xfs_dir2_trace_args("sf_removename", args);
+	dp = args->dp;
+
+	ASSERT(dp->i_df.if_flags & XFS_IFINLINE);
+	oldsize = (int)dp->i_d.di_size;
+	/*
+	 * Bail out if the directory is way too short.
+	 */
+	if (oldsize < offsetof(xfs_dir2_sf_hdr_t, parent)) {
+		ASSERT(XFS_FORCED_SHUTDOWN(dp->i_mount));
+		return XFS_ERROR(EIO);
+	}
+	ASSERT(dp->i_df.if_bytes == oldsize);
+	ASSERT(dp->i_df.if_u1.if_data != NULL);
+	sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data;
+	ASSERT(oldsize >= XFS_DIR2_SF_HDR_SIZE(sfp->hdr.i8count));
+	/*
+	 * Loop over the old directory entries.
+	 * Find the one we're deleting.
+	 */
+	for (i = 0, sfep = XFS_DIR2_SF_FIRSTENTRY(sfp);
+	     i < sfp->hdr.count;
+	     i++, sfep = XFS_DIR2_SF_NEXTENTRY(sfp, sfep)) {
+		if (sfep->namelen == args->namelen &&
+		    sfep->name[0] == args->name[0] &&
+		    memcmp(sfep->name, args->name, args->namelen) == 0) {
+			ASSERT(XFS_DIR2_SF_GET_INUMBER_ARCH(sfp,
+					XFS_DIR2_SF_INUMBERP(sfep), ARCH_CONVERT) ==
+				args->inumber);
+			break;
+		}
+	}
+	/*
+	 * Didn't find it.
+	 */
+	if (i == sfp->hdr.count) {
+		return XFS_ERROR(ENOENT);
+	}
+	/*
+	 * Calculate sizes.
+	 */
+	byteoff = (int)((char *)sfep - (char *)sfp);
+	entsize = XFS_DIR2_SF_ENTSIZE_BYNAME(sfp, args->namelen);
+	newsize = oldsize - entsize;
+	/*
+	 * Copy the part if any after the removed entry, sliding it down.
+	 */
+	if (byteoff + entsize < oldsize)
+		memmove((char *)sfp + byteoff, (char *)sfp + byteoff + entsize,
+			oldsize - (byteoff + entsize));
+	/*
+	 * Fix up the header and file size.
+	 */
+	sfp->hdr.count--;
+	dp->i_d.di_size = newsize;
+	/*
+	 * Reallocate, making it smaller.
+	 */
+	xfs_idata_realloc(dp, newsize - oldsize, XFS_DATA_FORK);
+	sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data;
+#if XFS_BIG_INUMS
+	/*
+	 * Are we changing inode number size?
+	 */
+	if (args->inumber > XFS_DIR2_MAX_SHORT_INUM) {
+		if (sfp->hdr.i8count == 1)
+			xfs_dir2_sf_toino4(args);
+		else
+			sfp->hdr.i8count--;
+	}
+#endif
+	xfs_dir2_sf_check(args);
+	xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE | XFS_ILOG_DDATA);
+	return 0;
+}
+
+/*
+ * Replace the inode number of an entry in a shortform directory.
+ */
+int						/* error */
+xfs_dir2_sf_replace(
+	xfs_da_args_t		*args)		/* operation arguments */
+{
+	xfs_inode_t		*dp;		/* incore directory inode */
+	int			i;		/* entry index */
+#if XFS_BIG_INUMS || defined(DEBUG)
+	xfs_ino_t		ino=0;		/* entry old inode number */
+#endif
+#if XFS_BIG_INUMS
+	int			i8elevated;	/* sf_toino8 set i8count=1 */
+#endif
+	xfs_dir2_sf_entry_t	*sfep;		/* shortform directory entry */
+	xfs_dir2_sf_t		*sfp;		/* shortform structure */
+
+	xfs_dir2_trace_args("sf_replace", args);
+	dp = args->dp;
+
+	ASSERT(dp->i_df.if_flags & XFS_IFINLINE);
+	/*
+	 * Bail out if the shortform directory is way too small.
+	 */
+	if (dp->i_d.di_size < offsetof(xfs_dir2_sf_hdr_t, parent)) {
+		ASSERT(XFS_FORCED_SHUTDOWN(dp->i_mount));
+		return XFS_ERROR(EIO);
+	}
+	ASSERT(dp->i_df.if_bytes == dp->i_d.di_size);
+	ASSERT(dp->i_df.if_u1.if_data != NULL);
+	sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data;
+	ASSERT(dp->i_d.di_size >= XFS_DIR2_SF_HDR_SIZE(sfp->hdr.i8count));
+#if XFS_BIG_INUMS
+	/*
+	 * New inode number is large, and need to convert to 8-byte inodes.
+	 */
+	if (args->inumber > XFS_DIR2_MAX_SHORT_INUM && sfp->hdr.i8count == 0) {
+		int	error;			/* error return value */
+		int	newsize;		/* new inode size */
+
+		newsize =
+			dp->i_df.if_bytes +
+			(sfp->hdr.count + 1) *
+			((uint)sizeof(xfs_dir2_ino8_t) -
+			 (uint)sizeof(xfs_dir2_ino4_t));
+		/*
+		 * Won't fit as shortform, convert to block then do replace.
+		 */
+		if (newsize > XFS_IFORK_DSIZE(dp)) {
+			error = xfs_dir2_sf_to_block(args);
+			if (error) {
+				return error;
+			}
+			return xfs_dir2_block_replace(args);
+		}
+		/*
+		 * Still fits, convert to 8-byte now.
+		 */
+		xfs_dir2_sf_toino8(args);
+		i8elevated = 1;
+		sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data;
+	} else
+		i8elevated = 0;
+#endif
+	ASSERT(args->namelen != 1 || args->name[0] != '.');
+	/*
+	 * Replace ..'s entry.
+	 */
+	if (args->namelen == 2 &&
+	    args->name[0] == '.' && args->name[1] == '.') {
+#if XFS_BIG_INUMS || defined(DEBUG)
+		ino = XFS_DIR2_SF_GET_INUMBER_ARCH(sfp, &sfp->hdr.parent, ARCH_CONVERT);
+		ASSERT(args->inumber != ino);
+#endif
+		XFS_DIR2_SF_PUT_INUMBER_ARCH(sfp, &args->inumber, &sfp->hdr.parent, ARCH_CONVERT);
+	}
+	/*
+	 * Normal entry, look for the name.
+	 */
+	else {
+		for (i = 0, sfep = XFS_DIR2_SF_FIRSTENTRY(sfp);
+		     i < sfp->hdr.count;
+		     i++, sfep = XFS_DIR2_SF_NEXTENTRY(sfp, sfep)) {
+			if (sfep->namelen == args->namelen &&
+			    sfep->name[0] == args->name[0] &&
+			    memcmp(args->name, sfep->name, args->namelen) == 0) {
+#if XFS_BIG_INUMS || defined(DEBUG)
+				ino = XFS_DIR2_SF_GET_INUMBER_ARCH(sfp,
+					XFS_DIR2_SF_INUMBERP(sfep), ARCH_CONVERT);
+				ASSERT(args->inumber != ino);
+#endif
+				XFS_DIR2_SF_PUT_INUMBER_ARCH(sfp, &args->inumber,
+					XFS_DIR2_SF_INUMBERP(sfep), ARCH_CONVERT);
+				break;
+			}
+		}
+		/*
+		 * Didn't find it.
+		 */
+		if (i == sfp->hdr.count) {
+			ASSERT(args->oknoent);
+#if XFS_BIG_INUMS
+			if (i8elevated)
+				xfs_dir2_sf_toino4(args);
+#endif
+			return XFS_ERROR(ENOENT);
+		}
+	}
+#if XFS_BIG_INUMS
+	/*
+	 * See if the old number was large, the new number is small.
+	 */
+	if (ino > XFS_DIR2_MAX_SHORT_INUM &&
+	    args->inumber <= XFS_DIR2_MAX_SHORT_INUM) {
+		/*
+		 * And the old count was one, so need to convert to small.
+		 */
+		if (sfp->hdr.i8count == 1)
+			xfs_dir2_sf_toino4(args);
+		else
+			sfp->hdr.i8count--;
+	}
+	/*
+	 * See if the old number was small, the new number is large.
+	 */
+	if (ino <= XFS_DIR2_MAX_SHORT_INUM &&
+	    args->inumber > XFS_DIR2_MAX_SHORT_INUM) {
+		/*
+		 * add to the i8count unless we just converted to 8-byte
+		 * inodes (which does an implied i8count = 1)
+		 */
+		ASSERT(sfp->hdr.i8count != 0);
+		if (!i8elevated)
+			sfp->hdr.i8count++;
+	}
+#endif
+	xfs_dir2_sf_check(args);
+	xfs_trans_log_inode(args->trans, dp, XFS_ILOG_DDATA);
+	return 0;
+}
+
+#if XFS_BIG_INUMS
+/*
+ * Convert from 8-byte inode numbers to 4-byte inode numbers.
+ * The last 8-byte inode number is gone, but the count is still 1.
+ */
+static void
+xfs_dir2_sf_toino4(
+	xfs_da_args_t		*args)		/* operation arguments */
+{
+	char			*buf;		/* old dir's buffer */
+	xfs_inode_t		*dp;		/* incore directory inode */
+	int			i;		/* entry index */
+	xfs_ino_t		ino;		/* entry inode number */
+	int			newsize;	/* new inode size */
+	xfs_dir2_sf_entry_t	*oldsfep;	/* old sf entry */
+	xfs_dir2_sf_t		*oldsfp;	/* old sf directory */
+	int			oldsize;	/* old inode size */
+	xfs_dir2_sf_entry_t	*sfep;		/* new sf entry */
+	xfs_dir2_sf_t		*sfp;		/* new sf directory */
+
+	xfs_dir2_trace_args("sf_toino4", args);
+	dp = args->dp;
+
+	/*
+	 * Copy the old directory to the buffer.
+	 * Then nuke it from the inode, and add the new buffer to the inode.
+	 * Don't want xfs_idata_realloc copying the data here.
+	 */
+	oldsize = dp->i_df.if_bytes;
+	buf = kmem_alloc(oldsize, KM_SLEEP);
+	oldsfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data;
+	ASSERT(oldsfp->hdr.i8count == 1);
+	memcpy(buf, oldsfp, oldsize);
+	/*
+	 * Compute the new inode size.
+	 */
+	newsize =
+		oldsize -
+		(oldsfp->hdr.count + 1) *
+		((uint)sizeof(xfs_dir2_ino8_t) - (uint)sizeof(xfs_dir2_ino4_t));
+	xfs_idata_realloc(dp, -oldsize, XFS_DATA_FORK);
+	xfs_idata_realloc(dp, newsize, XFS_DATA_FORK);
+	/*
+	 * Reset our pointers, the data has moved.
+	 */
+	oldsfp = (xfs_dir2_sf_t *)buf;
+	sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data;
+	/*
+	 * Fill in the new header.
+	 */
+	sfp->hdr.count = oldsfp->hdr.count;
+	sfp->hdr.i8count = 0;
+	ino = XFS_DIR2_SF_GET_INUMBER_ARCH(oldsfp, &oldsfp->hdr.parent, ARCH_CONVERT);
+	XFS_DIR2_SF_PUT_INUMBER_ARCH(sfp, &ino, &sfp->hdr.parent, ARCH_CONVERT);
+	/*
+	 * Copy the entries field by field.
+	 */
+	for (i = 0, sfep = XFS_DIR2_SF_FIRSTENTRY(sfp),
+		    oldsfep = XFS_DIR2_SF_FIRSTENTRY(oldsfp);
+	     i < sfp->hdr.count;
+	     i++, sfep = XFS_DIR2_SF_NEXTENTRY(sfp, sfep),
+		  oldsfep = XFS_DIR2_SF_NEXTENTRY(oldsfp, oldsfep)) {
+		sfep->namelen = oldsfep->namelen;
+		sfep->offset = oldsfep->offset;
+		memcpy(sfep->name, oldsfep->name, sfep->namelen);
+		ino = XFS_DIR2_SF_GET_INUMBER_ARCH(oldsfp,
+			XFS_DIR2_SF_INUMBERP(oldsfep), ARCH_CONVERT);
+		XFS_DIR2_SF_PUT_INUMBER_ARCH(sfp, &ino, XFS_DIR2_SF_INUMBERP(sfep), ARCH_CONVERT);
+	}
+	/*
+	 * Clean up the inode.
+	 */
+	kmem_free(buf, oldsize);
+	dp->i_d.di_size = newsize;
+	xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE | XFS_ILOG_DDATA);
+}
+
+/*
+ * Convert from 4-byte inode numbers to 8-byte inode numbers.
+ * The new 8-byte inode number is not there yet, we leave with the
+ * count 1 but no corresponding entry.
+ */
+static void
+xfs_dir2_sf_toino8(
+	xfs_da_args_t		*args)		/* operation arguments */
+{
+	char			*buf;		/* old dir's buffer */
+	xfs_inode_t		*dp;		/* incore directory inode */
+	int			i;		/* entry index */
+	xfs_ino_t		ino;		/* entry inode number */
+	int			newsize;	/* new inode size */
+	xfs_dir2_sf_entry_t	*oldsfep;	/* old sf entry */
+	xfs_dir2_sf_t		*oldsfp;	/* old sf directory */
+	int			oldsize;	/* old inode size */
+	xfs_dir2_sf_entry_t	*sfep;		/* new sf entry */
+	xfs_dir2_sf_t		*sfp;		/* new sf directory */
+
+	xfs_dir2_trace_args("sf_toino8", args);
+	dp = args->dp;
+
+	/*
+	 * Copy the old directory to the buffer.
+	 * Then nuke it from the inode, and add the new buffer to the inode.
+	 * Don't want xfs_idata_realloc copying the data here.
+	 */
+	oldsize = dp->i_df.if_bytes;
+	buf = kmem_alloc(oldsize, KM_SLEEP);
+	oldsfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data;
+	ASSERT(oldsfp->hdr.i8count == 0);
+	memcpy(buf, oldsfp, oldsize);
+	/*
+	 * Compute the new inode size.
+	 */
+	newsize =
+		oldsize +
+		(oldsfp->hdr.count + 1) *
+		((uint)sizeof(xfs_dir2_ino8_t) - (uint)sizeof(xfs_dir2_ino4_t));
+	xfs_idata_realloc(dp, -oldsize, XFS_DATA_FORK);
+	xfs_idata_realloc(dp, newsize, XFS_DATA_FORK);
+	/*
+	 * Reset our pointers, the data has moved.
+	 */
+	oldsfp = (xfs_dir2_sf_t *)buf;
+	sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data;
+	/*
+	 * Fill in the new header.
+	 */
+	sfp->hdr.count = oldsfp->hdr.count;
+	sfp->hdr.i8count = 1;
+	ino = XFS_DIR2_SF_GET_INUMBER_ARCH(oldsfp, &oldsfp->hdr.parent, ARCH_CONVERT);
+	XFS_DIR2_SF_PUT_INUMBER_ARCH(sfp, &ino, &sfp->hdr.parent, ARCH_CONVERT);
+	/*
+	 * Copy the entries field by field.
+	 */
+	for (i = 0, sfep = XFS_DIR2_SF_FIRSTENTRY(sfp),
+		    oldsfep = XFS_DIR2_SF_FIRSTENTRY(oldsfp);
+	     i < sfp->hdr.count;
+	     i++, sfep = XFS_DIR2_SF_NEXTENTRY(sfp, sfep),
+		  oldsfep = XFS_DIR2_SF_NEXTENTRY(oldsfp, oldsfep)) {
+		sfep->namelen = oldsfep->namelen;
+		sfep->offset = oldsfep->offset;
+		memcpy(sfep->name, oldsfep->name, sfep->namelen);
+		ino = XFS_DIR2_SF_GET_INUMBER_ARCH(oldsfp,
+			XFS_DIR2_SF_INUMBERP(oldsfep), ARCH_CONVERT);
+		XFS_DIR2_SF_PUT_INUMBER_ARCH(sfp, &ino, XFS_DIR2_SF_INUMBERP(sfep), ARCH_CONVERT);
+	}
+	/*
+	 * Clean up the inode.
+	 */
+	kmem_free(buf, oldsize);
+	dp->i_d.di_size = newsize;
+	xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE | XFS_ILOG_DDATA);
+}
+#endif	/* XFS_BIG_INUMS */
diff --git a/fs/xfs/xfs_dir2_sf.h b/fs/xfs/xfs_dir2_sf.h
new file mode 100644
index 00000000000000..3fea83ecd59cba
--- /dev/null
+++ b/fs/xfs/xfs_dir2_sf.h
@@ -0,0 +1,255 @@
+/*
+ * Copyright (c) 2000-2001 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_DIR2_SF_H__
+#define	__XFS_DIR2_SF_H__
+
+/*
+ * Directory layout when stored internal to an inode.
+ *
+ * Small directories are packed as tightly as possible so as to
+ * fit into the literal area of the inode.
+ */
+
+struct uio;
+struct xfs_dabuf;
+struct xfs_da_args;
+struct xfs_dir2_block;
+struct xfs_inode;
+struct xfs_mount;
+struct xfs_trans;
+
+/*
+ * Maximum size of a shortform directory.
+ */
+#define	XFS_DIR2_SF_MAX_SIZE	\
+	(XFS_DINODE_MAX_SIZE - (uint)sizeof(xfs_dinode_core_t) - \
+	 (uint)sizeof(xfs_agino_t))
+
+/*
+ * Inode number stored as 8 8-bit values.
+ */
+typedef	struct { __uint8_t i[8]; } xfs_dir2_ino8_t;
+
+#define	XFS_DIR2_SF_GET_INO8_ARCH(di,arch)	\
+	(xfs_ino_t)(DIRINO_GET_ARCH(&di,arch))
+#define	XFS_DIR2_SF_GET_INO8(di)	        \
+	XFS_DIR2_SF_GET_INO8_ARCH(di,ARCH_NOCONVERT)
+
+/*
+ * Inode number stored as 4 8-bit values.
+ * Works a lot of the time, when all the inode numbers in a directory
+ * fit in 32 bits.
+ */
+typedef struct { __uint8_t i[4]; } xfs_dir2_ino4_t;
+#define	XFS_DIR2_SF_GET_INO4_ARCH(di,arch)	\
+	(xfs_ino_t)(DIRINO4_GET_ARCH(&di,arch))
+#define	XFS_DIR2_SF_GET_INO4(di)	        \
+	XFS_DIR2_SF_GET_INO4_ARCH(di,ARCH_NOCONVERT)
+
+typedef union {
+	xfs_dir2_ino8_t	i8;
+	xfs_dir2_ino4_t	i4;
+} xfs_dir2_inou_t;
+#define	XFS_DIR2_MAX_SHORT_INUM	((xfs_ino_t)0xffffffffULL)
+
+/*
+ * Normalized offset (in a data block) of the entry, really xfs_dir2_data_off_t.
+ * Only need 16 bits, this is the byte offset into the single block form.
+ */
+typedef struct { __uint8_t i[2]; } xfs_dir2_sf_off_t;
+
+/*
+ * The parent directory has a dedicated field, and the self-pointer must
+ * be calculated on the fly.
+ *
+ * Entries are packed toward the top as tightly as possible.  The header
+ * and the elements must be memcpy'd out into a work area to get correct
+ * alignment for the inode number fields.
+ */
+typedef struct xfs_dir2_sf_hdr {
+	__uint8_t		count;		/* count of entries */
+	__uint8_t		i8count;	/* count of 8-byte inode #s */
+	xfs_dir2_inou_t		parent;		/* parent dir inode number */
+} xfs_dir2_sf_hdr_t;
+
+typedef struct xfs_dir2_sf_entry {
+	__uint8_t		namelen;	/* actual name length */
+	xfs_dir2_sf_off_t	offset;		/* saved offset */
+	__uint8_t		name[1];	/* name, variable size */
+	xfs_dir2_inou_t		inumber;	/* inode number, var. offset */
+} xfs_dir2_sf_entry_t;
+
+typedef struct xfs_dir2_sf {
+	xfs_dir2_sf_hdr_t	hdr;		/* shortform header */
+	xfs_dir2_sf_entry_t	list[1];	/* shortform entries */
+} xfs_dir2_sf_t;
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_SF_HDR_SIZE)
+int xfs_dir2_sf_hdr_size(int i8count);
+#define	XFS_DIR2_SF_HDR_SIZE(i8count)	xfs_dir2_sf_hdr_size(i8count)
+#else
+#define	XFS_DIR2_SF_HDR_SIZE(i8count)	\
+	((uint)sizeof(xfs_dir2_sf_hdr_t) - \
+	 ((i8count) == 0) * \
+	 ((uint)sizeof(xfs_dir2_ino8_t) - (uint)sizeof(xfs_dir2_ino4_t)))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_SF_INUMBERP)
+xfs_dir2_inou_t *xfs_dir2_sf_inumberp(xfs_dir2_sf_entry_t *sfep);
+#define	XFS_DIR2_SF_INUMBERP(sfep)	xfs_dir2_sf_inumberp(sfep)
+#else
+#define	XFS_DIR2_SF_INUMBERP(sfep)	\
+	((xfs_dir2_inou_t *)&(sfep)->name[(sfep)->namelen])
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_SF_GET_INUMBER)
+xfs_intino_t xfs_dir2_sf_get_inumber_arch(xfs_dir2_sf_t *sfp, xfs_dir2_inou_t *from,
+					    xfs_arch_t arch);
+#define	XFS_DIR2_SF_GET_INUMBER_ARCH(sfp, from, arch)	\
+	xfs_dir2_sf_get_inumber_arch(sfp, from, arch)
+
+#else
+#define	XFS_DIR2_SF_GET_INUMBER_ARCH(sfp, from, arch)	\
+	((sfp)->hdr.i8count == 0 ? \
+		(xfs_intino_t)XFS_DIR2_SF_GET_INO4_ARCH(*(from), arch) : \
+		(xfs_intino_t)XFS_DIR2_SF_GET_INO8_ARCH(*(from), arch))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_SF_PUT_INUMBER)
+void xfs_dir2_sf_put_inumber_arch(xfs_dir2_sf_t *sfp, xfs_ino_t *from,
+				     xfs_dir2_inou_t *to, xfs_arch_t arch);
+#define	XFS_DIR2_SF_PUT_INUMBER_ARCH(sfp,from,to,arch)	\
+	xfs_dir2_sf_put_inumber_arch(sfp,from,to,arch)
+#else
+#define	XFS_DIR2_SF_PUT_INUMBER_ARCH(sfp,from,to,arch)	\
+	if ((sfp)->hdr.i8count == 0) { \
+	    DIRINO4_COPY_ARCH(from,to,arch); \
+	} else { \
+	    DIRINO_COPY_ARCH(from,to,arch); \
+	}
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_SF_GET_OFFSET)
+xfs_dir2_data_aoff_t xfs_dir2_sf_get_offset_arch(xfs_dir2_sf_entry_t *sfep,
+						    xfs_arch_t arch);
+xfs_dir2_data_aoff_t xfs_dir2_sf_get_offset(xfs_dir2_sf_entry_t *sfep);
+#define	XFS_DIR2_SF_GET_OFFSET_ARCH(sfep,arch)	\
+	xfs_dir2_sf_get_offset_arch(sfep,arch)
+#else
+#define	XFS_DIR2_SF_GET_OFFSET_ARCH(sfep,arch)	\
+	INT_GET_UNALIGNED_16_ARCH(&(sfep)->offset.i,arch)
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_SF_PUT_OFFSET)
+void xfs_dir2_sf_put_offset_arch(xfs_dir2_sf_entry_t *sfep,
+				    xfs_dir2_data_aoff_t off, xfs_arch_t arch);
+#define	XFS_DIR2_SF_PUT_OFFSET_ARCH(sfep,off,arch) \
+	xfs_dir2_sf_put_offset_arch(sfep,off,arch)
+#else
+#define	XFS_DIR2_SF_PUT_OFFSET_ARCH(sfep,off,arch)	\
+	INT_SET_UNALIGNED_16_ARCH(&(sfep)->offset.i,off,arch)
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_SF_ENTSIZE_BYNAME)
+int xfs_dir2_sf_entsize_byname(xfs_dir2_sf_t *sfp, int len);
+#define XFS_DIR2_SF_ENTSIZE_BYNAME(sfp,len)	\
+	xfs_dir2_sf_entsize_byname(sfp,len)
+#else
+#define XFS_DIR2_SF_ENTSIZE_BYNAME(sfp,len)	/* space a name uses */ \
+	((uint)sizeof(xfs_dir2_sf_entry_t) - 1 + (len) - \
+	 ((sfp)->hdr.i8count == 0) * \
+	 ((uint)sizeof(xfs_dir2_ino8_t) - (uint)sizeof(xfs_dir2_ino4_t)))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_SF_ENTSIZE_BYENTRY)
+int xfs_dir2_sf_entsize_byentry(xfs_dir2_sf_t *sfp, xfs_dir2_sf_entry_t *sfep);
+#define XFS_DIR2_SF_ENTSIZE_BYENTRY(sfp,sfep)	\
+	xfs_dir2_sf_entsize_byentry(sfp,sfep)
+#else
+#define XFS_DIR2_SF_ENTSIZE_BYENTRY(sfp,sfep)	/* space an entry uses */ \
+	((uint)sizeof(xfs_dir2_sf_entry_t) - 1 + (sfep)->namelen - \
+	 ((sfp)->hdr.i8count == 0) * \
+	 ((uint)sizeof(xfs_dir2_ino8_t) - (uint)sizeof(xfs_dir2_ino4_t)))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_SF_FIRSTENTRY)
+xfs_dir2_sf_entry_t *xfs_dir2_sf_firstentry(xfs_dir2_sf_t *sfp);
+#define XFS_DIR2_SF_FIRSTENTRY(sfp)	xfs_dir2_sf_firstentry(sfp)
+#else
+#define XFS_DIR2_SF_FIRSTENTRY(sfp)	/* first entry in struct */ \
+	((xfs_dir2_sf_entry_t *) \
+	 ((char *)(sfp) + XFS_DIR2_SF_HDR_SIZE(sfp->hdr.i8count)))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_SF_NEXTENTRY)
+xfs_dir2_sf_entry_t *xfs_dir2_sf_nextentry(xfs_dir2_sf_t *sfp,
+					   xfs_dir2_sf_entry_t *sfep);
+#define XFS_DIR2_SF_NEXTENTRY(sfp,sfep)		xfs_dir2_sf_nextentry(sfp,sfep)
+#else
+#define XFS_DIR2_SF_NEXTENTRY(sfp,sfep)		/* next entry in struct */ \
+	((xfs_dir2_sf_entry_t *) \
+		((char *)(sfep) + XFS_DIR2_SF_ENTSIZE_BYENTRY(sfp,sfep)))
+#endif
+
+/*
+ * Functions.
+ */
+
+extern int
+	xfs_dir2_block_sfsize(struct xfs_inode *dp,
+			      struct xfs_dir2_block *block,
+			      xfs_dir2_sf_hdr_t *sfhp);
+
+extern int
+	xfs_dir2_block_to_sf(struct xfs_da_args *args, struct xfs_dabuf *bp,
+			     int size, xfs_dir2_sf_hdr_t *sfhp);
+
+extern int
+	xfs_dir2_sf_addname(struct xfs_da_args *args);
+
+extern int
+	xfs_dir2_sf_create(struct xfs_da_args *args, xfs_ino_t pino);
+
+extern int
+	xfs_dir2_sf_getdents(struct xfs_inode *dp, struct uio *uio, int *eofp,
+			     struct xfs_dirent *dbp, xfs_dir2_put_t put);
+
+extern int
+	xfs_dir2_sf_lookup(struct xfs_da_args *args);
+
+extern int
+	xfs_dir2_sf_removename(struct xfs_da_args *args);
+
+extern int
+	xfs_dir2_sf_replace(struct xfs_da_args *args);
+
+#endif	/* __XFS_DIR2_SF_H__ */
diff --git a/fs/xfs/xfs_dir2_trace.c b/fs/xfs/xfs_dir2_trace.c
new file mode 100644
index 00000000000000..9d64173931408d
--- /dev/null
+++ b/fs/xfs/xfs_dir2_trace.c
@@ -0,0 +1,235 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+/*
+ * xfs_dir2_trace.c
+ * Tracing for xfs v2 directories.
+ */
+#include "xfs.h"
+
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_da_btree.h"
+#include "xfs_dir2_trace.h"
+
+#ifdef XFS_DIR2_TRACE
+ktrace_t	*xfs_dir2_trace_buf;
+
+/*
+ * Enter something in the trace buffers.
+ */
+static void
+xfs_dir2_trace_enter(
+	xfs_inode_t	*dp,
+	int		type,
+	char		*where,
+	char		*name,
+	int		namelen,
+	void		*a0,
+	void		*a1,
+	void		*a2,
+	void		*a3,
+	void		*a4,
+	void		*a5,
+	void		*a6,
+	void		*a7)
+{
+	void		*n[5];
+
+	ASSERT(xfs_dir2_trace_buf);
+	ASSERT(dp->i_dir_trace);
+	if (name)
+		memcpy(n, name, min((int)sizeof(n), namelen));
+	else
+		memset((char *)n, 0, sizeof(n));
+	ktrace_enter(xfs_dir2_trace_buf,
+		(void *)(long)type, (void *)where,
+		(void *)a0, (void *)a1, (void *)a2, (void *)a3,
+		(void *)a4, (void *)a5, (void *)a6, (void *)a7,
+		(void *)(long)namelen,
+		(void *)n[0], (void *)n[1], (void *)n[2],
+		(void *)n[3], (void *)n[4]);
+	ktrace_enter(dp->i_dir_trace,
+		(void *)(long)type, (void *)where,
+		(void *)a0, (void *)a1, (void *)a2, (void *)a3,
+		(void *)a4, (void *)a5, (void *)a6, (void *)a7,
+		(void *)(long)namelen,
+		(void *)n[0], (void *)n[1], (void *)n[2],
+		(void *)n[3], (void *)n[4]);
+}
+
+void
+xfs_dir2_trace_args(
+	char		*where,
+	xfs_da_args_t	*args)
+{
+	xfs_dir2_trace_enter(args->dp, XFS_DIR2_KTRACE_ARGS, where,
+		(char *)args->name, (int)args->namelen,
+		(void *)(unsigned long)args->hashval,
+		(void *)((unsigned long)(args->inumber >> 32)),
+		(void *)((unsigned long)(args->inumber & 0xFFFFFFFF)),
+		(void *)args->dp, (void *)args->trans,
+		(void *)(unsigned long)args->justcheck, NULL, NULL);
+}
+
+void
+xfs_dir2_trace_args_b(
+	char		*where,
+	xfs_da_args_t	*args,
+	xfs_dabuf_t	*bp)
+{
+	xfs_dir2_trace_enter(args->dp, XFS_DIR2_KTRACE_ARGS_B, where,
+		(char *)args->name, (int)args->namelen,
+		(void *)(unsigned long)args->hashval,
+		(void *)((unsigned long)(args->inumber >> 32)),
+		(void *)((unsigned long)(args->inumber & 0xFFFFFFFF)),
+		(void *)args->dp, (void *)args->trans,
+		(void *)(unsigned long)args->justcheck,
+		(void *)(bp ? bp->bps[0] : NULL), NULL);
+}
+
+void
+xfs_dir2_trace_args_bb(
+	char		*where,
+	xfs_da_args_t	*args,
+	xfs_dabuf_t	*lbp,
+	xfs_dabuf_t	*dbp)
+{
+	xfs_dir2_trace_enter(args->dp, XFS_DIR2_KTRACE_ARGS_BB, where,
+		(char *)args->name, (int)args->namelen,
+		(void *)(unsigned long)args->hashval,
+		(void *)((unsigned long)(args->inumber >> 32)),
+		(void *)((unsigned long)(args->inumber & 0xFFFFFFFF)),
+		(void *)args->dp, (void *)args->trans,
+		(void *)(unsigned long)args->justcheck,
+		(void *)(lbp ? lbp->bps[0] : NULL),
+		(void *)(dbp ? dbp->bps[0] : NULL));
+}
+
+void
+xfs_dir2_trace_args_bibii(
+	char		*where,
+	xfs_da_args_t	*args,
+	xfs_dabuf_t	*bs,
+	int		ss,
+	xfs_dabuf_t	*bd,
+	int		sd,
+	int		c)
+{
+	xfs_buf_t	*bpbs = bs ? bs->bps[0] : NULL;
+	xfs_buf_t	*bpbd = bd ? bd->bps[0] : NULL;
+
+	xfs_dir2_trace_enter(args->dp, XFS_DIR2_KTRACE_ARGS_BIBII, where,
+		(char *)args->name, (int)args->namelen,
+		(void *)args->dp, (void *)args->trans,
+		(void *)bpbs, (void *)(long)ss, (void *)bpbd, (void *)(long)sd,
+		(void *)(long)c, NULL);
+}
+
+void
+xfs_dir2_trace_args_db(
+	char		*where,
+	xfs_da_args_t	*args,
+	xfs_dir2_db_t	db,
+	xfs_dabuf_t	*bp)
+{
+	xfs_buf_t	*dbp = bp ? bp->bps[0] : NULL;
+
+	xfs_dir2_trace_enter(args->dp, XFS_DIR2_KTRACE_ARGS_DB, where,
+		(char *)args->name, (int)args->namelen,
+		(void *)(unsigned long)args->hashval,
+		(void *)((unsigned long)(args->inumber >> 32)),
+		(void *)((unsigned long)(args->inumber & 0xFFFFFFFF)),
+		(void *)args->dp, (void *)args->trans,
+		(void *)(unsigned long)args->justcheck, (void *)(long)db,
+		(void *)dbp);
+}
+
+void
+xfs_dir2_trace_args_i(
+	char		*where,
+	xfs_da_args_t	*args,
+	xfs_ino_t	i)
+{
+	xfs_dir2_trace_enter(args->dp, XFS_DIR2_KTRACE_ARGS_I, where,
+		(char *)args->name, (int)args->namelen,
+		(void *)(unsigned long)args->hashval,
+		(void *)((unsigned long)(args->inumber >> 32)),
+		(void *)((unsigned long)(args->inumber & 0xFFFFFFFF)),
+		(void *)args->dp, (void *)args->trans,
+		(void *)(unsigned long)args->justcheck,
+		(void *)((unsigned long)(i >> 32)),
+		(void *)((unsigned long)(i & 0xFFFFFFFF)));
+}
+
+void
+xfs_dir2_trace_args_s(
+	char		*where,
+	xfs_da_args_t	*args,
+	int		s)
+{
+	xfs_dir2_trace_enter(args->dp, XFS_DIR2_KTRACE_ARGS_S, where,
+		(char *)args->name, (int)args->namelen,
+		(void *)(unsigned long)args->hashval,
+		(void *)((unsigned long)(args->inumber >> 32)),
+		(void *)((unsigned long)(args->inumber & 0xFFFFFFFF)),
+		(void *)args->dp, (void *)args->trans,
+		(void *)(unsigned long)args->justcheck, (void *)(long)s, NULL);
+}
+
+void
+xfs_dir2_trace_args_sb(
+	char		*where,
+	xfs_da_args_t	*args,
+	int		s,
+	xfs_dabuf_t	*bp)
+{
+	xfs_buf_t	*dbp = bp ? bp->bps[0] : NULL;
+
+	xfs_dir2_trace_enter(args->dp, XFS_DIR2_KTRACE_ARGS_SB, where,
+		(char *)args->name, (int)args->namelen,
+		(void *)(unsigned long)args->hashval,
+		(void *)((unsigned long)(args->inumber >> 32)),
+		(void *)((unsigned long)(args->inumber & 0xFFFFFFFF)),
+		(void *)args->dp, (void *)args->trans,
+		(void *)(unsigned long)args->justcheck, (void *)(long)s,
+		(void *)dbp);
+}
+#endif	/* XFS_DIR2_TRACE */
diff --git a/fs/xfs/xfs_dir2_trace.h b/fs/xfs/xfs_dir2_trace.h
new file mode 100644
index 00000000000000..0a178bffa806ee
--- /dev/null
+++ b/fs/xfs/xfs_dir2_trace.h
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_DIR2_TRACE_H__
+#define __XFS_DIR2_TRACE_H__
+
+/*
+ * Tracing for xfs v2 directories.
+ */
+
+#if defined(XFS_DIR2_TRACE)
+
+struct ktrace;
+struct xfs_dabuf;
+struct xfs_da_args;
+
+#define	XFS_DIR2_GTRACE_SIZE		4096	/* global buffer */
+#define	XFS_DIR2_KTRACE_SIZE		32	/* per-inode buffer */
+extern struct ktrace *xfs_dir2_trace_buf;
+
+#define	XFS_DIR2_KTRACE_ARGS		1	/* args only */
+#define	XFS_DIR2_KTRACE_ARGS_B		2	/* args + buffer */
+#define	XFS_DIR2_KTRACE_ARGS_BB		3	/* args + 2 buffers */
+#define	XFS_DIR2_KTRACE_ARGS_DB		4	/* args, db, buffer */
+#define	XFS_DIR2_KTRACE_ARGS_I		5	/* args, inum */
+#define	XFS_DIR2_KTRACE_ARGS_S		6	/* args, int */
+#define	XFS_DIR2_KTRACE_ARGS_SB		7	/* args, int, buffer */
+#define	XFS_DIR2_KTRACE_ARGS_BIBII	8	/* args, buf/int/buf/int/int */
+
+void xfs_dir2_trace_args(char *where, struct xfs_da_args *args);
+void xfs_dir2_trace_args_b(char *where, struct xfs_da_args *args,
+			   struct xfs_dabuf *bp);
+void xfs_dir2_trace_args_bb(char *where, struct xfs_da_args *args,
+			    struct xfs_dabuf *lbp, struct xfs_dabuf *dbp);
+void xfs_dir2_trace_args_bibii(char *where, struct xfs_da_args *args,
+			       struct xfs_dabuf *bs, int ss,
+			       struct xfs_dabuf *bd, int sd, int c);
+void xfs_dir2_trace_args_db(char *where, struct xfs_da_args *args,
+			    xfs_dir2_db_t db, struct xfs_dabuf *bp);
+void xfs_dir2_trace_args_i(char *where, struct xfs_da_args *args, xfs_ino_t i);
+void xfs_dir2_trace_args_s(char *where, struct xfs_da_args *args, int s);
+void xfs_dir2_trace_args_sb(char *where, struct xfs_da_args *args, int s,
+			    struct xfs_dabuf *bp);
+
+#else	/* XFS_DIR2_TRACE */
+
+#define	xfs_dir2_trace_args(where, args)
+#define	xfs_dir2_trace_args_b(where, args, bp)
+#define	xfs_dir2_trace_args_bb(where, args, lbp, dbp)
+#define	xfs_dir2_trace_args_bibii(where, args, bs, ss, bd, sd, c)
+#define	xfs_dir2_trace_args_db(where, args, db, bp)
+#define	xfs_dir2_trace_args_i(where, args, i)
+#define	xfs_dir2_trace_args_s(where, args, s)
+#define	xfs_dir2_trace_args_sb(where, args, s, bp)
+
+#endif	/* XFS_DIR2_TRACE */
+
+#endif	/* __XFS_DIR2_TRACE_H__ */
diff --git a/fs/xfs/xfs_dir_leaf.c b/fs/xfs/xfs_dir_leaf.c
new file mode 100644
index 00000000000000..2f889ce88f4ccf
--- /dev/null
+++ b/fs/xfs/xfs_dir_leaf.c
@@ -0,0 +1,2231 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+/*
+ * xfs_dir_leaf.c
+ *
+ * GROT: figure out how to recover gracefully when bmap returns ENOSPC.
+ */
+
+#include "xfs.h"
+
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_alloc.h"
+#include "xfs_btree.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode_item.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_da_btree.h"
+#include "xfs_dir_leaf.h"
+#include "xfs_error.h"
+
+/*
+ * xfs_dir_leaf.c
+ *
+ * Routines to implement leaf blocks of directories as Btrees of hashed names.
+ */
+
+/*========================================================================
+ * Function prototypes for the kernel.
+ *========================================================================*/
+
+/*
+ * Routines used for growing the Btree.
+ */
+STATIC void xfs_dir_leaf_add_work(xfs_dabuf_t *leaf_buffer, xfs_da_args_t *args,
+					      int insertion_index,
+					      int freemap_index);
+STATIC int xfs_dir_leaf_compact(xfs_trans_t *trans, xfs_dabuf_t *leaf_buffer,
+					    int musthave, int justcheck);
+STATIC void xfs_dir_leaf_rebalance(xfs_da_state_t *state,
+						  xfs_da_state_blk_t *blk1,
+						  xfs_da_state_blk_t *blk2);
+STATIC int xfs_dir_leaf_figure_balance(xfs_da_state_t *state,
+					  xfs_da_state_blk_t *leaf_blk_1,
+					  xfs_da_state_blk_t *leaf_blk_2,
+					  int *number_entries_in_blk1,
+					  int *number_namebytes_in_blk1);
+
+/*
+ * Utility routines.
+ */
+STATIC void xfs_dir_leaf_moveents(xfs_dir_leafblock_t *src_leaf,
+					      int src_start,
+					      xfs_dir_leafblock_t *dst_leaf,
+					      int dst_start, int move_count,
+					      xfs_mount_t *mp);
+
+
+/*========================================================================
+ * External routines when dirsize < XFS_IFORK_DSIZE(dp).
+ *========================================================================*/
+
+
+/*
+ * Validate a given inode number.
+ */
+int
+xfs_dir_ino_validate(xfs_mount_t *mp, xfs_ino_t ino)
+{
+	xfs_agblock_t	agblkno;
+	xfs_agino_t	agino;
+	xfs_agnumber_t	agno;
+	int		ino_ok;
+	int		ioff;
+
+	agno = XFS_INO_TO_AGNO(mp, ino);
+	agblkno = XFS_INO_TO_AGBNO(mp, ino);
+	ioff = XFS_INO_TO_OFFSET(mp, ino);
+	agino = XFS_OFFBNO_TO_AGINO(mp, agblkno, ioff);
+	ino_ok =
+		agno < mp->m_sb.sb_agcount &&
+		agblkno < mp->m_sb.sb_agblocks &&
+		agblkno != 0 &&
+		ioff < (1 << mp->m_sb.sb_inopblog) &&
+		XFS_AGINO_TO_INO(mp, agno, agino) == ino;
+	if (unlikely(XFS_TEST_ERROR(!ino_ok, mp, XFS_ERRTAG_DIR_INO_VALIDATE,
+			XFS_RANDOM_DIR_INO_VALIDATE))) {
+		xfs_fs_cmn_err(CE_WARN, mp, "Invalid inode number 0x%Lx",
+				(unsigned long long) ino);
+		XFS_ERROR_REPORT("xfs_dir_ino_validate", XFS_ERRLEVEL_LOW, mp);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+	return 0;
+}
+
+/*
+ * Create the initial contents of a shortform directory.
+ */
+int
+xfs_dir_shortform_create(xfs_da_args_t *args, xfs_ino_t parent)
+{
+	xfs_dir_sf_hdr_t *hdr;
+	xfs_inode_t *dp;
+
+	dp = args->dp;
+	ASSERT(dp != NULL);
+	ASSERT(dp->i_d.di_size == 0);
+	if (dp->i_d.di_format == XFS_DINODE_FMT_EXTENTS) {
+		dp->i_df.if_flags &= ~XFS_IFEXTENTS;	/* just in case */
+		dp->i_d.di_format = XFS_DINODE_FMT_LOCAL;
+		xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE);
+		dp->i_df.if_flags |= XFS_IFINLINE;
+	}
+	ASSERT(dp->i_df.if_flags & XFS_IFINLINE);
+	ASSERT(dp->i_df.if_bytes == 0);
+	xfs_idata_realloc(dp, sizeof(*hdr), XFS_DATA_FORK);
+	hdr = (xfs_dir_sf_hdr_t *)dp->i_df.if_u1.if_data;
+	XFS_DIR_SF_PUT_DIRINO_ARCH(&parent, &hdr->parent, ARCH_CONVERT);
+
+	INT_ZERO(hdr->count, ARCH_CONVERT);
+	dp->i_d.di_size = sizeof(*hdr);
+	xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE | XFS_ILOG_DDATA);
+	return(0);
+}
+
+/*
+ * Add a name to the shortform directory structure.
+ * Overflow from the inode has already been checked for.
+ */
+int
+xfs_dir_shortform_addname(xfs_da_args_t *args)
+{
+	xfs_dir_shortform_t *sf;
+	xfs_dir_sf_entry_t *sfe;
+	int i, offset, size;
+	xfs_inode_t *dp;
+
+	dp = args->dp;
+	ASSERT(dp->i_df.if_flags & XFS_IFINLINE);
+	/*
+	 * Catch the case where the conversion from shortform to leaf
+	 * failed part way through.
+	 */
+	if (dp->i_d.di_size < sizeof(xfs_dir_sf_hdr_t)) {
+		ASSERT(XFS_FORCED_SHUTDOWN(dp->i_mount));
+		return XFS_ERROR(EIO);
+	}
+	ASSERT(dp->i_df.if_bytes == dp->i_d.di_size);
+	ASSERT(dp->i_df.if_u1.if_data != NULL);
+	sf = (xfs_dir_shortform_t *)dp->i_df.if_u1.if_data;
+	sfe = &sf->list[0];
+	for (i = INT_GET(sf->hdr.count, ARCH_CONVERT)-1; i >= 0; i--) {
+		if (sfe->namelen == args->namelen &&
+		    args->name[0] == sfe->name[0] &&
+		    memcmp(args->name, sfe->name, args->namelen) == 0)
+			return(XFS_ERROR(EEXIST));
+		sfe = XFS_DIR_SF_NEXTENTRY(sfe);
+	}
+
+	offset = (int)((char *)sfe - (char *)sf);
+	size = XFS_DIR_SF_ENTSIZE_BYNAME(args->namelen);
+	xfs_idata_realloc(dp, size, XFS_DATA_FORK);
+	sf = (xfs_dir_shortform_t *)dp->i_df.if_u1.if_data;
+	sfe = (xfs_dir_sf_entry_t *)((char *)sf + offset);
+
+	XFS_DIR_SF_PUT_DIRINO_ARCH(&args->inumber, &sfe->inumber, ARCH_CONVERT);
+	sfe->namelen = args->namelen;
+	memcpy(sfe->name, args->name, sfe->namelen);
+	INT_MOD(sf->hdr.count, ARCH_CONVERT, +1);
+
+	dp->i_d.di_size += size;
+	xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE | XFS_ILOG_DDATA);
+
+	return(0);
+}
+
+/*
+ * Remove a name from the shortform directory structure.
+ */
+int
+xfs_dir_shortform_removename(xfs_da_args_t *args)
+{
+	xfs_dir_shortform_t *sf;
+	xfs_dir_sf_entry_t *sfe;
+	int base, size = 0, i;
+	xfs_inode_t *dp;
+
+	dp = args->dp;
+	ASSERT(dp->i_df.if_flags & XFS_IFINLINE);
+	/*
+	 * Catch the case where the conversion from shortform to leaf
+	 * failed part way through.
+	 */
+	if (dp->i_d.di_size < sizeof(xfs_dir_sf_hdr_t)) {
+		ASSERT(XFS_FORCED_SHUTDOWN(dp->i_mount));
+		return XFS_ERROR(EIO);
+	}
+	ASSERT(dp->i_df.if_bytes == dp->i_d.di_size);
+	ASSERT(dp->i_df.if_u1.if_data != NULL);
+	base = sizeof(xfs_dir_sf_hdr_t);
+	sf = (xfs_dir_shortform_t *)dp->i_df.if_u1.if_data;
+	sfe = &sf->list[0];
+	for (i = INT_GET(sf->hdr.count, ARCH_CONVERT)-1; i >= 0; i--) {
+		size = XFS_DIR_SF_ENTSIZE_BYENTRY(sfe);
+		if (sfe->namelen == args->namelen &&
+		    sfe->name[0] == args->name[0] &&
+		    memcmp(sfe->name, args->name, args->namelen) == 0)
+			break;
+		base += size;
+		sfe = XFS_DIR_SF_NEXTENTRY(sfe);
+	}
+	if (i < 0) {
+		ASSERT(args->oknoent);
+		return(XFS_ERROR(ENOENT));
+	}
+
+	if ((base + size) != dp->i_d.di_size) {
+		memmove(&((char *)sf)[base], &((char *)sf)[base+size],
+					      dp->i_d.di_size - (base+size));
+	}
+	INT_MOD(sf->hdr.count, ARCH_CONVERT, -1);
+
+	xfs_idata_realloc(dp, -size, XFS_DATA_FORK);
+	dp->i_d.di_size -= size;
+	xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE | XFS_ILOG_DDATA);
+
+	return(0);
+}
+
+/*
+ * Look up a name in a shortform directory structure.
+ */
+int
+xfs_dir_shortform_lookup(xfs_da_args_t *args)
+{
+	xfs_dir_shortform_t *sf;
+	xfs_dir_sf_entry_t *sfe;
+	int i;
+	xfs_inode_t *dp;
+
+	dp = args->dp;
+	ASSERT(dp->i_df.if_flags & XFS_IFINLINE);
+	/*
+	 * Catch the case where the conversion from shortform to leaf
+	 * failed part way through.
+	 */
+	if (dp->i_d.di_size < sizeof(xfs_dir_sf_hdr_t)) {
+		ASSERT(XFS_FORCED_SHUTDOWN(dp->i_mount));
+		return XFS_ERROR(EIO);
+	}
+	ASSERT(dp->i_df.if_bytes == dp->i_d.di_size);
+	ASSERT(dp->i_df.if_u1.if_data != NULL);
+	sf = (xfs_dir_shortform_t *)dp->i_df.if_u1.if_data;
+	if (args->namelen == 2 &&
+	    args->name[0] == '.' && args->name[1] == '.') {
+		XFS_DIR_SF_GET_DIRINO_ARCH(&sf->hdr.parent, &args->inumber, ARCH_CONVERT);
+		return(XFS_ERROR(EEXIST));
+	}
+	if (args->namelen == 1 && args->name[0] == '.') {
+		args->inumber = dp->i_ino;
+		return(XFS_ERROR(EEXIST));
+	}
+	sfe = &sf->list[0];
+	for (i = INT_GET(sf->hdr.count, ARCH_CONVERT)-1; i >= 0; i--) {
+		if (sfe->namelen == args->namelen &&
+		    sfe->name[0] == args->name[0] &&
+		    memcmp(args->name, sfe->name, args->namelen) == 0) {
+			XFS_DIR_SF_GET_DIRINO_ARCH(&sfe->inumber, &args->inumber, ARCH_CONVERT);
+			return(XFS_ERROR(EEXIST));
+		}
+		sfe = XFS_DIR_SF_NEXTENTRY(sfe);
+	}
+	ASSERT(args->oknoent);
+	return(XFS_ERROR(ENOENT));
+}
+
+/*
+ * Convert from using the shortform to the leaf.
+ */
+int
+xfs_dir_shortform_to_leaf(xfs_da_args_t *iargs)
+{
+	xfs_inode_t *dp;
+	xfs_dir_shortform_t *sf;
+	xfs_dir_sf_entry_t *sfe;
+	xfs_da_args_t args;
+	xfs_ino_t inumber;
+	char *tmpbuffer;
+	int retval, i, size;
+	xfs_dablk_t blkno;
+	xfs_dabuf_t *bp;
+
+	dp = iargs->dp;
+	/*
+	 * Catch the case where the conversion from shortform to leaf
+	 * failed part way through.
+	 */
+	if (dp->i_d.di_size < sizeof(xfs_dir_sf_hdr_t)) {
+		ASSERT(XFS_FORCED_SHUTDOWN(dp->i_mount));
+		return XFS_ERROR(EIO);
+	}
+	ASSERT(dp->i_df.if_bytes == dp->i_d.di_size);
+	ASSERT(dp->i_df.if_u1.if_data != NULL);
+	size = dp->i_df.if_bytes;
+	tmpbuffer = kmem_alloc(size, KM_SLEEP);
+	ASSERT(tmpbuffer != NULL);
+
+	memcpy(tmpbuffer, dp->i_df.if_u1.if_data, size);
+
+	sf = (xfs_dir_shortform_t *)tmpbuffer;
+	XFS_DIR_SF_GET_DIRINO_ARCH(&sf->hdr.parent, &inumber, ARCH_CONVERT);
+
+	xfs_idata_realloc(dp, -size, XFS_DATA_FORK);
+	dp->i_d.di_size = 0;
+	xfs_trans_log_inode(iargs->trans, dp, XFS_ILOG_CORE);
+	retval = xfs_da_grow_inode(iargs, &blkno);
+	if (retval)
+		goto out;
+
+	ASSERT(blkno == 0);
+	retval = xfs_dir_leaf_create(iargs, blkno, &bp);
+	if (retval)
+		goto out;
+	xfs_da_buf_done(bp);
+
+	args.name = ".";
+	args.namelen = 1;
+	args.hashval = xfs_dir_hash_dot;
+	args.inumber = dp->i_ino;
+	args.dp = dp;
+	args.firstblock = iargs->firstblock;
+	args.flist = iargs->flist;
+	args.total = iargs->total;
+	args.whichfork = XFS_DATA_FORK;
+	args.trans = iargs->trans;
+	args.justcheck = 0;
+	args.addname = args.oknoent = 1;
+	retval = xfs_dir_leaf_addname(&args);
+	if (retval)
+		goto out;
+
+	args.name = "..";
+	args.namelen = 2;
+	args.hashval = xfs_dir_hash_dotdot;
+	args.inumber = inumber;
+	retval = xfs_dir_leaf_addname(&args);
+	if (retval)
+		goto out;
+
+	sfe = &sf->list[0];
+	for (i = 0; i < INT_GET(sf->hdr.count, ARCH_CONVERT); i++) {
+		args.name = (char *)(sfe->name);
+		args.namelen = sfe->namelen;
+		args.hashval = xfs_da_hashname((char *)(sfe->name),
+					       sfe->namelen);
+		XFS_DIR_SF_GET_DIRINO_ARCH(&sfe->inumber, &args.inumber, ARCH_CONVERT);
+		retval = xfs_dir_leaf_addname(&args);
+		if (retval)
+			goto out;
+		sfe = XFS_DIR_SF_NEXTENTRY(sfe);
+	}
+	retval = 0;
+
+out:
+	kmem_free(tmpbuffer, size);
+	return(retval);
+}
+
+STATIC int
+xfs_dir_shortform_compare(const void *a, const void *b)
+{
+	xfs_dir_sf_sort_t *sa, *sb;
+
+	sa = (xfs_dir_sf_sort_t *)a;
+	sb = (xfs_dir_sf_sort_t *)b;
+	if (sa->hash < sb->hash)
+		return -1;
+	else if (sa->hash > sb->hash)
+		return 1;
+	else
+		return sa->entno - sb->entno;
+}
+
+/*
+ * Copy out directory entries for getdents(), for shortform directories.
+ */
+/*ARGSUSED*/
+int
+xfs_dir_shortform_getdents(xfs_inode_t *dp, uio_t *uio, int *eofp,
+				       xfs_dirent_t *dbp, xfs_dir_put_t put)
+{
+	xfs_dir_shortform_t *sf;
+	xfs_dir_sf_entry_t *sfe;
+	int retval, i, sbsize, nsbuf, lastresid=0, want_entno;
+	xfs_mount_t *mp;
+	xfs_dahash_t cookhash, hash;
+	xfs_dir_put_args_t p;
+	xfs_dir_sf_sort_t *sbuf, *sbp;
+
+	mp = dp->i_mount;
+	sf = (xfs_dir_shortform_t *)dp->i_df.if_u1.if_data;
+	cookhash = XFS_DA_COOKIE_HASH(mp, uio->uio_offset);
+	want_entno = XFS_DA_COOKIE_ENTRY(mp, uio->uio_offset);
+	nsbuf = INT_GET(sf->hdr.count, ARCH_CONVERT) + 2;
+	sbsize = (nsbuf + 1) * sizeof(*sbuf);
+	sbp = sbuf = kmem_alloc(sbsize, KM_SLEEP);
+
+	xfs_dir_trace_g_du("sf: start", dp, uio);
+
+	/*
+	 * Collect all the entries into the buffer.
+	 * Entry 0 is .
+	 */
+	sbp->entno = 0;
+	sbp->seqno = 0;
+	sbp->hash = xfs_dir_hash_dot;
+	sbp->ino = dp->i_ino;
+	sbp->name = ".";
+	sbp->namelen = 1;
+	sbp++;
+
+	/*
+	 * Entry 1 is ..
+	 */
+	sbp->entno = 1;
+	sbp->seqno = 0;
+	sbp->hash = xfs_dir_hash_dotdot;
+	sbp->ino = XFS_GET_DIR_INO_ARCH(mp, sf->hdr.parent, ARCH_CONVERT);
+	sbp->name = "..";
+	sbp->namelen = 2;
+	sbp++;
+
+	/*
+	 * Scan the directory data for the rest of the entries.
+	 */
+	for (i = 0, sfe = &sf->list[0];
+			i < INT_GET(sf->hdr.count, ARCH_CONVERT); i++) {
+
+		if (unlikely(
+		    ((char *)sfe < (char *)sf) ||
+		    ((char *)sfe >= ((char *)sf + dp->i_df.if_bytes)))) {
+			xfs_dir_trace_g_du("sf: corrupted", dp, uio);
+			XFS_CORRUPTION_ERROR("xfs_dir_shortform_getdents",
+					     XFS_ERRLEVEL_LOW, mp, sfe);
+			kmem_free(sbuf, sbsize);
+			return XFS_ERROR(EFSCORRUPTED);
+		}
+
+		sbp->entno = i + 2;
+		sbp->seqno = 0;
+		sbp->hash = xfs_da_hashname((char *)sfe->name, sfe->namelen);
+		sbp->ino = XFS_GET_DIR_INO_ARCH(mp, sfe->inumber, ARCH_CONVERT);
+		sbp->name = (char *)sfe->name;
+		sbp->namelen = sfe->namelen;
+		sfe = XFS_DIR_SF_NEXTENTRY(sfe);
+		sbp++;
+	}
+
+	/*
+	 * Sort the entries on hash then entno.
+	 */
+	qsort(sbuf, nsbuf, sizeof(*sbuf), xfs_dir_shortform_compare);
+	/*
+	 * Stuff in last entry.
+	 */
+	sbp->entno = nsbuf;
+	sbp->hash = XFS_DA_MAXHASH;
+	sbp->seqno = 0;
+	/*
+	 * Figure out the sequence numbers in case there's a hash duplicate.
+	 */
+	for (hash = sbuf->hash, sbp = sbuf + 1;
+				sbp < &sbuf[nsbuf + 1]; sbp++) {
+		if (sbp->hash == hash)
+			sbp->seqno = sbp[-1].seqno + 1;
+		else
+			hash = sbp->hash;
+	}
+
+	/*
+	 * Set up put routine.
+	 */
+	p.dbp = dbp;
+	p.put = put;
+	p.uio = uio;
+
+	/*
+	 * Find our place.
+	 */
+	for (sbp = sbuf; sbp < &sbuf[nsbuf + 1]; sbp++) {
+		if (sbp->hash > cookhash ||
+		    (sbp->hash == cookhash && sbp->seqno >= want_entno))
+			break;
+	}
+
+	/*
+	 * Did we fail to find anything?  We stop at the last entry,
+	 * the one we put maxhash into.
+	 */
+	if (sbp == &sbuf[nsbuf]) {
+		kmem_free(sbuf, sbsize);
+		xfs_dir_trace_g_du("sf: hash beyond end", dp, uio);
+		uio->uio_offset = XFS_DA_MAKE_COOKIE(mp, 0, 0, XFS_DA_MAXHASH);
+		*eofp = 1;
+		return 0;
+	}
+
+	/*
+	 * Loop putting entries into the user buffer.
+	 */
+	while (sbp < &sbuf[nsbuf]) {
+		/*
+		 * Save the first resid in a run of equal-hashval entries
+		 * so that we can back them out if they don't all fit.
+		 */
+		if (sbp->seqno == 0 || sbp == sbuf)
+			lastresid = uio->uio_resid;
+		XFS_PUT_COOKIE(p.cook, mp, 0, sbp[1].seqno, sbp[1].hash);
+		p.ino = sbp->ino;
+#if XFS_BIG_INUMS
+		p.ino += mp->m_inoadd;
+#endif
+		p.name = sbp->name;
+		p.namelen = sbp->namelen;
+		retval = p.put(&p);
+		if (!p.done) {
+			uio->uio_offset =
+				XFS_DA_MAKE_COOKIE(mp, 0, 0, sbp->hash);
+			kmem_free(sbuf, sbsize);
+			uio->uio_resid = lastresid;
+			xfs_dir_trace_g_du("sf: E-O-B", dp, uio);
+			return retval;
+		}
+		sbp++;
+	}
+	kmem_free(sbuf, sbsize);
+	uio->uio_offset = p.cook.o;
+	*eofp = 1;
+	xfs_dir_trace_g_du("sf: E-O-F", dp, uio);
+	return 0;
+}
+
+/*
+ * Look up a name in a shortform directory structure, replace the inode number.
+ */
+int
+xfs_dir_shortform_replace(xfs_da_args_t *args)
+{
+	xfs_dir_shortform_t *sf;
+	xfs_dir_sf_entry_t *sfe;
+	xfs_inode_t *dp;
+	int i;
+
+	dp = args->dp;
+	ASSERT(dp->i_df.if_flags & XFS_IFINLINE);
+	/*
+	 * Catch the case where the conversion from shortform to leaf
+	 * failed part way through.
+	 */
+	if (dp->i_d.di_size < sizeof(xfs_dir_sf_hdr_t)) {
+		ASSERT(XFS_FORCED_SHUTDOWN(dp->i_mount));
+		return XFS_ERROR(EIO);
+	}
+	ASSERT(dp->i_df.if_bytes == dp->i_d.di_size);
+	ASSERT(dp->i_df.if_u1.if_data != NULL);
+	sf = (xfs_dir_shortform_t *)dp->i_df.if_u1.if_data;
+	if (args->namelen == 2 &&
+	    args->name[0] == '.' && args->name[1] == '.') {
+		/* XXX - replace assert? */
+		XFS_DIR_SF_PUT_DIRINO_ARCH(&args->inumber, &sf->hdr.parent, ARCH_CONVERT);
+		xfs_trans_log_inode(args->trans, dp, XFS_ILOG_DDATA);
+		return(0);
+	}
+	ASSERT(args->namelen != 1 || args->name[0] != '.');
+	sfe = &sf->list[0];
+	for (i = INT_GET(sf->hdr.count, ARCH_CONVERT)-1; i >= 0; i--) {
+		if (sfe->namelen == args->namelen &&
+		    sfe->name[0] == args->name[0] &&
+		    memcmp(args->name, sfe->name, args->namelen) == 0) {
+			ASSERT(memcmp((char *)&args->inumber,
+				(char *)&sfe->inumber, sizeof(xfs_ino_t)));
+			XFS_DIR_SF_PUT_DIRINO_ARCH(&args->inumber, &sfe->inumber, ARCH_CONVERT);
+			xfs_trans_log_inode(args->trans, dp, XFS_ILOG_DDATA);
+			return(0);
+		}
+		sfe = XFS_DIR_SF_NEXTENTRY(sfe);
+	}
+	ASSERT(args->oknoent);
+	return(XFS_ERROR(ENOENT));
+}
+
+/*
+ * Convert a leaf directory to shortform structure
+ */
+int
+xfs_dir_leaf_to_shortform(xfs_da_args_t *iargs)
+{
+	xfs_dir_leafblock_t *leaf;
+	xfs_dir_leaf_hdr_t *hdr;
+	xfs_dir_leaf_entry_t *entry;
+	xfs_dir_leaf_name_t *namest;
+	xfs_da_args_t args;
+	xfs_inode_t *dp;
+	xfs_ino_t parent;
+	char *tmpbuffer;
+	int retval, i;
+	xfs_dabuf_t *bp;
+
+	dp = iargs->dp;
+	tmpbuffer = kmem_alloc(XFS_LBSIZE(dp->i_mount), KM_SLEEP);
+	ASSERT(tmpbuffer != NULL);
+
+	retval = xfs_da_read_buf(iargs->trans, iargs->dp, 0, -1, &bp,
+					       XFS_DATA_FORK);
+	if (retval)
+		goto out;
+	ASSERT(bp != NULL);
+	memcpy(tmpbuffer, bp->data, XFS_LBSIZE(dp->i_mount));
+	leaf = (xfs_dir_leafblock_t *)tmpbuffer;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR_LEAF_MAGIC);
+	memset(bp->data, 0, XFS_LBSIZE(dp->i_mount));
+
+	/*
+	 * Find and special case the parent inode number
+	 */
+	hdr = &leaf->hdr;
+	entry = &leaf->entries[0];
+	for (i = INT_GET(hdr->count, ARCH_CONVERT)-1; i >= 0; entry++, i--) {
+		namest = XFS_DIR_LEAF_NAMESTRUCT(leaf, INT_GET(entry->nameidx, ARCH_CONVERT));
+		if ((entry->namelen == 2) &&
+		    (namest->name[0] == '.') &&
+		    (namest->name[1] == '.')) {
+			XFS_DIR_SF_GET_DIRINO_ARCH(&namest->inumber, &parent, ARCH_CONVERT);
+			INT_ZERO(entry->nameidx, ARCH_CONVERT);
+		} else if ((entry->namelen == 1) && (namest->name[0] == '.')) {
+			INT_ZERO(entry->nameidx, ARCH_CONVERT);
+		}
+	}
+	retval = xfs_da_shrink_inode(iargs, 0, bp);
+	if (retval)
+		goto out;
+	retval = xfs_dir_shortform_create(iargs, parent);
+	if (retval)
+		goto out;
+
+	/*
+	 * Copy the rest of the filenames
+	 */
+	entry = &leaf->entries[0];
+	args.dp = dp;
+	args.firstblock = iargs->firstblock;
+	args.flist = iargs->flist;
+	args.total = iargs->total;
+	args.whichfork = XFS_DATA_FORK;
+	args.trans = iargs->trans;
+	args.justcheck = 0;
+	args.addname = args.oknoent = 1;
+	for (i = 0; i < INT_GET(hdr->count, ARCH_CONVERT); entry++, i++) {
+		if (INT_ISZERO(entry->nameidx, ARCH_CONVERT))
+			continue;
+		namest = XFS_DIR_LEAF_NAMESTRUCT(leaf, INT_GET(entry->nameidx, ARCH_CONVERT));
+		args.name = (char *)(namest->name);
+		args.namelen = entry->namelen;
+		args.hashval = INT_GET(entry->hashval, ARCH_CONVERT);
+		XFS_DIR_SF_GET_DIRINO_ARCH(&namest->inumber, &args.inumber, ARCH_CONVERT);
+		xfs_dir_shortform_addname(&args);
+	}
+
+out:
+	kmem_free(tmpbuffer, XFS_LBSIZE(dp->i_mount));
+	return(retval);
+}
+
+/*
+ * Convert from using a single leaf to a root node and a leaf.
+ */
+int
+xfs_dir_leaf_to_node(xfs_da_args_t *args)
+{
+	xfs_dir_leafblock_t *leaf;
+	xfs_da_intnode_t *node;
+	xfs_inode_t *dp;
+	xfs_dabuf_t *bp1, *bp2;
+	xfs_dablk_t blkno;
+	int retval;
+
+	dp = args->dp;
+	retval = xfs_da_grow_inode(args, &blkno);
+	ASSERT(blkno == 1);
+	if (retval)
+		return(retval);
+	retval = xfs_da_read_buf(args->trans, args->dp, 0, -1, &bp1,
+					      XFS_DATA_FORK);
+	if (retval)
+		return(retval);
+	ASSERT(bp1 != NULL);
+	retval = xfs_da_get_buf(args->trans, args->dp, 1, -1, &bp2,
+					     XFS_DATA_FORK);
+	if (retval) {
+		xfs_da_buf_done(bp1);
+		return(retval);
+	}
+	ASSERT(bp2 != NULL);
+	memcpy(bp2->data, bp1->data, XFS_LBSIZE(dp->i_mount));
+	xfs_da_buf_done(bp1);
+	xfs_da_log_buf(args->trans, bp2, 0, XFS_LBSIZE(dp->i_mount) - 1);
+
+	/*
+	 * Set up the new root node.
+	 */
+	retval = xfs_da_node_create(args, 0, 1, &bp1, XFS_DATA_FORK);
+	if (retval) {
+		xfs_da_buf_done(bp2);
+		return(retval);
+	}
+	node = bp1->data;
+	leaf = bp2->data;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR_LEAF_MAGIC);
+	INT_SET(node->btree[0].hashval, ARCH_CONVERT, INT_GET(leaf->entries[ INT_GET(leaf->hdr.count, ARCH_CONVERT)-1 ].hashval, ARCH_CONVERT));
+	xfs_da_buf_done(bp2);
+	INT_SET(node->btree[0].before, ARCH_CONVERT, blkno);
+	INT_SET(node->hdr.count, ARCH_CONVERT, 1);
+	xfs_da_log_buf(args->trans, bp1,
+		XFS_DA_LOGRANGE(node, &node->btree[0], sizeof(node->btree[0])));
+	xfs_da_buf_done(bp1);
+
+	return(retval);
+}
+
+
+/*========================================================================
+ * Routines used for growing the Btree.
+ *========================================================================*/
+
+/*
+ * Create the initial contents of a leaf directory
+ * or a leaf in a node directory.
+ */
+int
+xfs_dir_leaf_create(xfs_da_args_t *args, xfs_dablk_t blkno, xfs_dabuf_t **bpp)
+{
+	xfs_dir_leafblock_t *leaf;
+	xfs_dir_leaf_hdr_t *hdr;
+	xfs_inode_t *dp;
+	xfs_dabuf_t *bp;
+	int retval;
+
+	dp = args->dp;
+	ASSERT(dp != NULL);
+	retval = xfs_da_get_buf(args->trans, dp, blkno, -1, &bp, XFS_DATA_FORK);
+	if (retval)
+		return(retval);
+	ASSERT(bp != NULL);
+	leaf = bp->data;
+	memset((char *)leaf, 0, XFS_LBSIZE(dp->i_mount));
+	hdr = &leaf->hdr;
+	INT_SET(hdr->info.magic, ARCH_CONVERT, XFS_DIR_LEAF_MAGIC);
+	INT_SET(hdr->firstused, ARCH_CONVERT, XFS_LBSIZE(dp->i_mount));
+	if (INT_ISZERO(hdr->firstused, ARCH_CONVERT))
+		INT_SET(hdr->firstused, ARCH_CONVERT, XFS_LBSIZE(dp->i_mount) - 1);
+	INT_SET(hdr->freemap[0].base, ARCH_CONVERT, sizeof(xfs_dir_leaf_hdr_t));
+	INT_SET(hdr->freemap[0].size, ARCH_CONVERT, INT_GET(hdr->firstused, ARCH_CONVERT) - INT_GET(hdr->freemap[0].base, ARCH_CONVERT));
+
+	xfs_da_log_buf(args->trans, bp, 0, XFS_LBSIZE(dp->i_mount) - 1);
+
+	*bpp = bp;
+	return(0);
+}
+
+/*
+ * Split the leaf node, rebalance, then add the new entry.
+ */
+int
+xfs_dir_leaf_split(xfs_da_state_t *state, xfs_da_state_blk_t *oldblk,
+				  xfs_da_state_blk_t *newblk)
+{
+	xfs_dablk_t blkno;
+	xfs_da_args_t *args;
+	int error;
+
+	/*
+	 * Allocate space for a new leaf node.
+	 */
+	args = state->args;
+	ASSERT(args != NULL);
+	ASSERT(oldblk->magic == XFS_DIR_LEAF_MAGIC);
+	error = xfs_da_grow_inode(args, &blkno);
+	if (error)
+		return(error);
+	error = xfs_dir_leaf_create(args, blkno, &newblk->bp);
+	if (error)
+		return(error);
+	newblk->blkno = blkno;
+	newblk->magic = XFS_DIR_LEAF_MAGIC;
+
+	/*
+	 * Rebalance the entries across the two leaves.
+	 */
+	xfs_dir_leaf_rebalance(state, oldblk, newblk);
+	error = xfs_da_blk_link(state, oldblk, newblk);
+	if (error)
+		return(error);
+
+	/*
+	 * Insert the new entry in the correct block.
+	 */
+	if (state->inleaf) {
+		error = xfs_dir_leaf_add(oldblk->bp, args, oldblk->index);
+	} else {
+		error = xfs_dir_leaf_add(newblk->bp, args, newblk->index);
+	}
+
+	/*
+	 * Update last hashval in each block since we added the name.
+	 */
+	oldblk->hashval = xfs_dir_leaf_lasthash(oldblk->bp, NULL);
+	newblk->hashval = xfs_dir_leaf_lasthash(newblk->bp, NULL);
+	return(error);
+}
+
+/*
+ * Add a name to the leaf directory structure.
+ *
+ * Must take into account fragmented leaves and leaves where spacemap has
+ * lost some freespace information (ie: holes).
+ */
+int
+xfs_dir_leaf_add(xfs_dabuf_t *bp, xfs_da_args_t *args, int index)
+{
+	xfs_dir_leafblock_t *leaf;
+	xfs_dir_leaf_hdr_t *hdr;
+	xfs_dir_leaf_map_t *map;
+	int tablesize, entsize, sum, i, tmp, error;
+
+	leaf = bp->data;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR_LEAF_MAGIC);
+	ASSERT((index >= 0) && (index <= INT_GET(leaf->hdr.count, ARCH_CONVERT)));
+	hdr = &leaf->hdr;
+	entsize = XFS_DIR_LEAF_ENTSIZE_BYNAME(args->namelen);
+
+	/*
+	 * Search through freemap for first-fit on new name length.
+	 * (may need to figure in size of entry struct too)
+	 */
+	tablesize = (INT_GET(hdr->count, ARCH_CONVERT) + 1) * (uint)sizeof(xfs_dir_leaf_entry_t)
+			+ (uint)sizeof(xfs_dir_leaf_hdr_t);
+	map = &hdr->freemap[XFS_DIR_LEAF_MAPSIZE-1];
+	for (sum = 0, i = XFS_DIR_LEAF_MAPSIZE-1; i >= 0; map--, i--) {
+		if (tablesize > INT_GET(hdr->firstused, ARCH_CONVERT)) {
+			sum += INT_GET(map->size, ARCH_CONVERT);
+			continue;
+		}
+		if (INT_ISZERO(map->size, ARCH_CONVERT))
+			continue;	/* no space in this map */
+		tmp = entsize;
+		if (INT_GET(map->base, ARCH_CONVERT) < INT_GET(hdr->firstused, ARCH_CONVERT))
+			tmp += (uint)sizeof(xfs_dir_leaf_entry_t);
+		if (INT_GET(map->size, ARCH_CONVERT) >= tmp) {
+			if (!args->justcheck)
+				xfs_dir_leaf_add_work(bp, args, index, i);
+			return(0);
+		}
+		sum += INT_GET(map->size, ARCH_CONVERT);
+	}
+
+	/*
+	 * If there are no holes in the address space of the block,
+	 * and we don't have enough freespace, then compaction will do us
+	 * no good and we should just give up.
+	 */
+	if (!hdr->holes && (sum < entsize))
+		return(XFS_ERROR(ENOSPC));
+
+	/*
+	 * Compact the entries to coalesce free space.
+	 * Pass the justcheck flag so the checking pass can return
+	 * an error, without changing anything, if it won't fit.
+	 */
+	error = xfs_dir_leaf_compact(args->trans, bp,
+			args->total == 0 ?
+				entsize +
+				(uint)sizeof(xfs_dir_leaf_entry_t) : 0,
+			args->justcheck);
+	if (error)
+		return(error);
+	/*
+	 * After compaction, the block is guaranteed to have only one
+	 * free region, in freemap[0].  If it is not big enough, give up.
+	 */
+	if (INT_GET(hdr->freemap[0].size, ARCH_CONVERT) <
+	    (entsize + (uint)sizeof(xfs_dir_leaf_entry_t)))
+		return(XFS_ERROR(ENOSPC));
+
+	if (!args->justcheck)
+		xfs_dir_leaf_add_work(bp, args, index, 0);
+	return(0);
+}
+
+/*
+ * Add a name to a leaf directory structure.
+ */
+STATIC void
+xfs_dir_leaf_add_work(xfs_dabuf_t *bp, xfs_da_args_t *args, int index,
+		      int mapindex)
+{
+	xfs_dir_leafblock_t *leaf;
+	xfs_dir_leaf_hdr_t *hdr;
+	xfs_dir_leaf_entry_t *entry;
+	xfs_dir_leaf_name_t *namest;
+	xfs_dir_leaf_map_t *map;
+	/* REFERENCED */
+	xfs_mount_t *mp;
+	int tmp, i;
+
+	leaf = bp->data;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR_LEAF_MAGIC);
+	hdr = &leaf->hdr;
+	ASSERT((mapindex >= 0) && (mapindex < XFS_DIR_LEAF_MAPSIZE));
+	ASSERT((index >= 0) && (index <= INT_GET(hdr->count, ARCH_CONVERT)));
+
+	/*
+	 * Force open some space in the entry array and fill it in.
+	 */
+	entry = &leaf->entries[index];
+	if (index < INT_GET(hdr->count, ARCH_CONVERT)) {
+		tmp  = INT_GET(hdr->count, ARCH_CONVERT) - index;
+		tmp *= (uint)sizeof(xfs_dir_leaf_entry_t);
+		memmove(entry + 1, entry, tmp);
+		xfs_da_log_buf(args->trans, bp,
+		    XFS_DA_LOGRANGE(leaf, entry, tmp + (uint)sizeof(*entry)));
+	}
+	INT_MOD(hdr->count, ARCH_CONVERT, +1);
+
+	/*
+	 * Allocate space for the new string (at the end of the run).
+	 */
+	map = &hdr->freemap[mapindex];
+	mp = args->trans->t_mountp;
+	ASSERT(INT_GET(map->base, ARCH_CONVERT) < XFS_LBSIZE(mp));
+	ASSERT(INT_GET(map->size, ARCH_CONVERT) >= XFS_DIR_LEAF_ENTSIZE_BYNAME(args->namelen));
+	ASSERT(INT_GET(map->size, ARCH_CONVERT) < XFS_LBSIZE(mp));
+	INT_MOD(map->size, ARCH_CONVERT, -(XFS_DIR_LEAF_ENTSIZE_BYNAME(args->namelen)));
+	INT_SET(entry->nameidx, ARCH_CONVERT, INT_GET(map->base, ARCH_CONVERT) + INT_GET(map->size, ARCH_CONVERT));
+	INT_SET(entry->hashval, ARCH_CONVERT, args->hashval);
+	entry->namelen = args->namelen;
+	xfs_da_log_buf(args->trans, bp,
+	    XFS_DA_LOGRANGE(leaf, entry, sizeof(*entry)));
+
+	/*
+	 * Copy the string and inode number into the new space.
+	 */
+	namest = XFS_DIR_LEAF_NAMESTRUCT(leaf, INT_GET(entry->nameidx, ARCH_CONVERT));
+	XFS_DIR_SF_PUT_DIRINO_ARCH(&args->inumber, &namest->inumber, ARCH_CONVERT);
+	memcpy(namest->name, args->name, args->namelen);
+	xfs_da_log_buf(args->trans, bp,
+	    XFS_DA_LOGRANGE(leaf, namest, XFS_DIR_LEAF_ENTSIZE_BYENTRY(entry)));
+
+	/*
+	 * Update the control info for this leaf node
+	 */
+	if (INT_GET(entry->nameidx, ARCH_CONVERT) < INT_GET(hdr->firstused, ARCH_CONVERT))
+		INT_COPY(hdr->firstused, entry->nameidx, ARCH_CONVERT);
+	ASSERT(INT_GET(hdr->firstused, ARCH_CONVERT) >= ((INT_GET(hdr->count, ARCH_CONVERT)*sizeof(*entry))+sizeof(*hdr)));
+	tmp = (INT_GET(hdr->count, ARCH_CONVERT)-1) * (uint)sizeof(xfs_dir_leaf_entry_t)
+			+ (uint)sizeof(xfs_dir_leaf_hdr_t);
+	map = &hdr->freemap[0];
+	for (i = 0; i < XFS_DIR_LEAF_MAPSIZE; map++, i++) {
+		if (INT_GET(map->base, ARCH_CONVERT) == tmp) {
+			INT_MOD(map->base, ARCH_CONVERT, (uint)sizeof(xfs_dir_leaf_entry_t));
+			INT_MOD(map->size, ARCH_CONVERT, -((uint)sizeof(xfs_dir_leaf_entry_t)));
+		}
+	}
+	INT_MOD(hdr->namebytes, ARCH_CONVERT, args->namelen);
+	xfs_da_log_buf(args->trans, bp,
+		XFS_DA_LOGRANGE(leaf, hdr, sizeof(*hdr)));
+}
+
+/*
+ * Garbage collect a leaf directory block by copying it to a new buffer.
+ */
+STATIC int
+xfs_dir_leaf_compact(xfs_trans_t *trans, xfs_dabuf_t *bp, int musthave,
+		     int justcheck)
+{
+	xfs_dir_leafblock_t *leaf_s, *leaf_d;
+	xfs_dir_leaf_hdr_t *hdr_s, *hdr_d;
+	xfs_mount_t *mp;
+	char *tmpbuffer;
+	char *tmpbuffer2=NULL;
+	int rval;
+	int lbsize;
+
+	mp = trans->t_mountp;
+	lbsize = XFS_LBSIZE(mp);
+	tmpbuffer = kmem_alloc(lbsize, KM_SLEEP);
+	ASSERT(tmpbuffer != NULL);
+	memcpy(tmpbuffer, bp->data, lbsize);
+
+	/*
+	 * Make a second copy in case xfs_dir_leaf_moveents()
+	 * below destroys the original.
+	 */
+	if (musthave || justcheck) {
+		tmpbuffer2 = kmem_alloc(lbsize, KM_SLEEP);
+		memcpy(tmpbuffer2, bp->data, lbsize);
+	}
+	memset(bp->data, 0, lbsize);
+
+	/*
+	 * Copy basic information
+	 */
+	leaf_s = (xfs_dir_leafblock_t *)tmpbuffer;
+	leaf_d = bp->data;
+	hdr_s = &leaf_s->hdr;
+	hdr_d = &leaf_d->hdr;
+	hdr_d->info = hdr_s->info;	/* struct copy */
+	INT_SET(hdr_d->firstused, ARCH_CONVERT, lbsize);
+	if (INT_ISZERO(hdr_d->firstused, ARCH_CONVERT))
+		INT_SET(hdr_d->firstused, ARCH_CONVERT, lbsize - 1);
+	INT_ZERO(hdr_d->namebytes, ARCH_CONVERT);
+	INT_ZERO(hdr_d->count, ARCH_CONVERT);
+	hdr_d->holes = 0;
+	INT_SET(hdr_d->freemap[0].base, ARCH_CONVERT, sizeof(xfs_dir_leaf_hdr_t));
+	INT_SET(hdr_d->freemap[0].size, ARCH_CONVERT, INT_GET(hdr_d->firstused, ARCH_CONVERT) - INT_GET(hdr_d->freemap[0].base, ARCH_CONVERT));
+
+	/*
+	 * Copy all entry's in the same (sorted) order,
+	 * but allocate filenames packed and in sequence.
+	 * This changes the source (leaf_s) as well.
+	 */
+	xfs_dir_leaf_moveents(leaf_s, 0, leaf_d, 0, (int)INT_GET(hdr_s->count, ARCH_CONVERT), mp);
+
+	if (musthave && INT_GET(hdr_d->freemap[0].size, ARCH_CONVERT) < musthave)
+		rval = XFS_ERROR(ENOSPC);
+	else
+		rval = 0;
+
+	if (justcheck || rval == ENOSPC) {
+		ASSERT(tmpbuffer2);
+		memcpy(bp->data, tmpbuffer2, lbsize);
+	} else {
+		xfs_da_log_buf(trans, bp, 0, lbsize - 1);
+	}
+
+	kmem_free(tmpbuffer, lbsize);
+	if (musthave || justcheck)
+		kmem_free(tmpbuffer2, lbsize);
+	return(rval);
+}
+
+/*
+ * Redistribute the directory entries between two leaf nodes,
+ * taking into account the size of the new entry.
+ *
+ * NOTE: if new block is empty, then it will get the upper half of old block.
+ */
+STATIC void
+xfs_dir_leaf_rebalance(xfs_da_state_t *state, xfs_da_state_blk_t *blk1,
+				      xfs_da_state_blk_t *blk2)
+{
+	xfs_da_state_blk_t *tmp_blk;
+	xfs_dir_leafblock_t *leaf1, *leaf2;
+	xfs_dir_leaf_hdr_t *hdr1, *hdr2;
+	int count, totallen, max, space, swap;
+
+	/*
+	 * Set up environment.
+	 */
+	ASSERT(blk1->magic == XFS_DIR_LEAF_MAGIC);
+	ASSERT(blk2->magic == XFS_DIR_LEAF_MAGIC);
+	leaf1 = blk1->bp->data;
+	leaf2 = blk2->bp->data;
+	ASSERT(INT_GET(leaf1->hdr.info.magic, ARCH_CONVERT) == XFS_DIR_LEAF_MAGIC);
+	ASSERT(INT_GET(leaf2->hdr.info.magic, ARCH_CONVERT) == XFS_DIR_LEAF_MAGIC);
+
+	/*
+	 * Check ordering of blocks, reverse if it makes things simpler.
+	 */
+	swap = 0;
+	if (xfs_dir_leaf_order(blk1->bp, blk2->bp)) {
+		tmp_blk = blk1;
+		blk1 = blk2;
+		blk2 = tmp_blk;
+		leaf1 = blk1->bp->data;
+		leaf2 = blk2->bp->data;
+		swap = 1;
+	}
+	hdr1 = &leaf1->hdr;
+	hdr2 = &leaf2->hdr;
+
+	/*
+	 * Examine entries until we reduce the absolute difference in
+	 * byte usage between the two blocks to a minimum.  Then get
+	 * the direction to copy and the number of elements to move.
+	 */
+	state->inleaf = xfs_dir_leaf_figure_balance(state, blk1, blk2,
+							   &count, &totallen);
+	if (swap)
+		state->inleaf = !state->inleaf;
+
+	/*
+	 * Move any entries required from leaf to leaf:
+	 */
+	if (count < INT_GET(hdr1->count, ARCH_CONVERT)) {
+		/*
+		 * Figure the total bytes to be added to the destination leaf.
+		 */
+		count = INT_GET(hdr1->count, ARCH_CONVERT) - count;	/* number entries being moved */
+		space  = INT_GET(hdr1->namebytes, ARCH_CONVERT) - totallen;
+		space += count * ((uint)sizeof(xfs_dir_leaf_name_t)-1);
+		space += count * (uint)sizeof(xfs_dir_leaf_entry_t);
+
+		/*
+		 * leaf2 is the destination, compact it if it looks tight.
+		 */
+		max  = INT_GET(hdr2->firstused, ARCH_CONVERT) - (uint)sizeof(xfs_dir_leaf_hdr_t);
+		max -= INT_GET(hdr2->count, ARCH_CONVERT) * (uint)sizeof(xfs_dir_leaf_entry_t);
+		if (space > max) {
+			xfs_dir_leaf_compact(state->args->trans, blk2->bp,
+								 0, 0);
+		}
+
+		/*
+		 * Move high entries from leaf1 to low end of leaf2.
+		 */
+		xfs_dir_leaf_moveents(leaf1, INT_GET(hdr1->count, ARCH_CONVERT) - count,
+					     leaf2, 0, count, state->mp);
+
+		xfs_da_log_buf(state->args->trans, blk1->bp, 0,
+						   state->blocksize-1);
+		xfs_da_log_buf(state->args->trans, blk2->bp, 0,
+						   state->blocksize-1);
+
+	} else if (count > INT_GET(hdr1->count, ARCH_CONVERT)) {
+		/*
+		 * Figure the total bytes to be added to the destination leaf.
+		 */
+		count -= INT_GET(hdr1->count, ARCH_CONVERT);		/* number entries being moved */
+		space  = totallen - INT_GET(hdr1->namebytes, ARCH_CONVERT);
+		space += count * ((uint)sizeof(xfs_dir_leaf_name_t)-1);
+		space += count * (uint)sizeof(xfs_dir_leaf_entry_t);
+
+		/*
+		 * leaf1 is the destination, compact it if it looks tight.
+		 */
+		max  = INT_GET(hdr1->firstused, ARCH_CONVERT) - (uint)sizeof(xfs_dir_leaf_hdr_t);
+		max -= INT_GET(hdr1->count, ARCH_CONVERT) * (uint)sizeof(xfs_dir_leaf_entry_t);
+		if (space > max) {
+			xfs_dir_leaf_compact(state->args->trans, blk1->bp,
+								 0, 0);
+		}
+
+		/*
+		 * Move low entries from leaf2 to high end of leaf1.
+		 */
+		xfs_dir_leaf_moveents(leaf2, 0, leaf1, (int)INT_GET(hdr1->count, ARCH_CONVERT),
+					     count, state->mp);
+
+		xfs_da_log_buf(state->args->trans, blk1->bp, 0,
+						   state->blocksize-1);
+		xfs_da_log_buf(state->args->trans, blk2->bp, 0,
+						   state->blocksize-1);
+	}
+
+	/*
+	 * Copy out last hashval in each block for B-tree code.
+	 */
+	blk1->hashval = INT_GET(leaf1->entries[ INT_GET(leaf1->hdr.count, ARCH_CONVERT)-1 ].hashval, ARCH_CONVERT);
+	blk2->hashval = INT_GET(leaf2->entries[ INT_GET(leaf2->hdr.count, ARCH_CONVERT)-1 ].hashval, ARCH_CONVERT);
+
+	/*
+	 * Adjust the expected index for insertion.
+	 * GROT: this doesn't work unless blk2 was originally empty.
+	 */
+	if (!state->inleaf) {
+		blk2->index = blk1->index - INT_GET(leaf1->hdr.count, ARCH_CONVERT);
+	}
+}
+
+/*
+ * Examine entries until we reduce the absolute difference in
+ * byte usage between the two blocks to a minimum.
+ * GROT: Is this really necessary?  With other than a 512 byte blocksize,
+ * GROT: there will always be enough room in either block for a new entry.
+ * GROT: Do a double-split for this case?
+ */
+STATIC int
+xfs_dir_leaf_figure_balance(xfs_da_state_t *state,
+					   xfs_da_state_blk_t *blk1,
+					   xfs_da_state_blk_t *blk2,
+					   int *countarg, int *namebytesarg)
+{
+	xfs_dir_leafblock_t *leaf1, *leaf2;
+	xfs_dir_leaf_hdr_t *hdr1, *hdr2;
+	xfs_dir_leaf_entry_t *entry;
+	int count, max, totallen, half;
+	int lastdelta, foundit, tmp;
+
+	/*
+	 * Set up environment.
+	 */
+	leaf1 = blk1->bp->data;
+	leaf2 = blk2->bp->data;
+	hdr1 = &leaf1->hdr;
+	hdr2 = &leaf2->hdr;
+	foundit = 0;
+	totallen = 0;
+
+	/*
+	 * Examine entries until we reduce the absolute difference in
+	 * byte usage between the two blocks to a minimum.
+	 */
+	max = INT_GET(hdr1->count, ARCH_CONVERT) + INT_GET(hdr2->count, ARCH_CONVERT);
+	half  = (max+1) * (uint)(sizeof(*entry)+sizeof(xfs_dir_leaf_entry_t)-1);
+	half += INT_GET(hdr1->namebytes, ARCH_CONVERT) + INT_GET(hdr2->namebytes, ARCH_CONVERT) + state->args->namelen;
+	half /= 2;
+	lastdelta = state->blocksize;
+	entry = &leaf1->entries[0];
+	for (count = 0; count < max; entry++, count++) {
+
+#define XFS_DIR_ABS(A)	(((A) < 0) ? -(A) : (A))
+		/*
+		 * The new entry is in the first block, account for it.
+		 */
+		if (count == blk1->index) {
+			tmp = totallen + (uint)sizeof(*entry)
+				+ XFS_DIR_LEAF_ENTSIZE_BYNAME(state->args->namelen);
+			if (XFS_DIR_ABS(half - tmp) > lastdelta)
+				break;
+			lastdelta = XFS_DIR_ABS(half - tmp);
+			totallen = tmp;
+			foundit = 1;
+		}
+
+		/*
+		 * Wrap around into the second block if necessary.
+		 */
+		if (count == INT_GET(hdr1->count, ARCH_CONVERT)) {
+			leaf1 = leaf2;
+			entry = &leaf1->entries[0];
+		}
+
+		/*
+		 * Figure out if next leaf entry would be too much.
+		 */
+		tmp = totallen + (uint)sizeof(*entry)
+				+ XFS_DIR_LEAF_ENTSIZE_BYENTRY(entry);
+		if (XFS_DIR_ABS(half - tmp) > lastdelta)
+			break;
+		lastdelta = XFS_DIR_ABS(half - tmp);
+		totallen = tmp;
+#undef XFS_DIR_ABS
+	}
+
+	/*
+	 * Calculate the number of namebytes that will end up in lower block.
+	 * If new entry not in lower block, fix up the count.
+	 */
+	totallen -=
+		count * (uint)(sizeof(*entry)+sizeof(xfs_dir_leaf_entry_t)-1);
+	if (foundit) {
+		totallen -= (sizeof(*entry)+sizeof(xfs_dir_leaf_entry_t)-1) +
+			    state->args->namelen;
+	}
+
+	*countarg = count;
+	*namebytesarg = totallen;
+	return(foundit);
+}
+
+/*========================================================================
+ * Routines used for shrinking the Btree.
+ *========================================================================*/
+
+/*
+ * Check a leaf block and its neighbors to see if the block should be
+ * collapsed into one or the other neighbor.  Always keep the block
+ * with the smaller block number.
+ * If the current block is over 50% full, don't try to join it, return 0.
+ * If the block is empty, fill in the state structure and return 2.
+ * If it can be collapsed, fill in the state structure and return 1.
+ * If nothing can be done, return 0.
+ */
+int
+xfs_dir_leaf_toosmall(xfs_da_state_t *state, int *action)
+{
+	xfs_dir_leafblock_t *leaf;
+	xfs_da_state_blk_t *blk;
+	xfs_da_blkinfo_t *info;
+	int count, bytes, forward, error, retval, i;
+	xfs_dablk_t blkno;
+	xfs_dabuf_t *bp;
+
+	/*
+	 * Check for the degenerate case of the block being over 50% full.
+	 * If so, it's not worth even looking to see if we might be able
+	 * to coalesce with a sibling.
+	 */
+	blk = &state->path.blk[ state->path.active-1 ];
+	info = blk->bp->data;
+	ASSERT(INT_GET(info->magic, ARCH_CONVERT) == XFS_DIR_LEAF_MAGIC);
+	leaf = (xfs_dir_leafblock_t *)info;
+	count = INT_GET(leaf->hdr.count, ARCH_CONVERT);
+	bytes = (uint)sizeof(xfs_dir_leaf_hdr_t) +
+		count * (uint)sizeof(xfs_dir_leaf_entry_t) +
+		count * ((uint)sizeof(xfs_dir_leaf_name_t)-1) +
+		INT_GET(leaf->hdr.namebytes, ARCH_CONVERT);
+	if (bytes > (state->blocksize >> 1)) {
+		*action = 0;	/* blk over 50%, don't try to join */
+		return(0);
+	}
+
+	/*
+	 * Check for the degenerate case of the block being empty.
+	 * If the block is empty, we'll simply delete it, no need to
+	 * coalesce it with a sibling block.  We choose (aribtrarily)
+	 * to merge with the forward block unless it is NULL.
+	 */
+	if (count == 0) {
+		/*
+		 * Make altpath point to the block we want to keep and
+		 * path point to the block we want to drop (this one).
+		 */
+		forward = !INT_ISZERO(info->forw, ARCH_CONVERT);
+		memcpy(&state->altpath, &state->path, sizeof(state->path));
+		error = xfs_da_path_shift(state, &state->altpath, forward,
+						 0, &retval);
+		if (error)
+			return(error);
+		if (retval) {
+			*action = 0;
+		} else {
+			*action = 2;
+		}
+		return(0);
+	}
+
+	/*
+	 * Examine each sibling block to see if we can coalesce with
+	 * at least 25% free space to spare.  We need to figure out
+	 * whether to merge with the forward or the backward block.
+	 * We prefer coalescing with the lower numbered sibling so as
+	 * to shrink a directory over time.
+	 */
+	forward = (INT_GET(info->forw, ARCH_CONVERT) < INT_GET(info->back, ARCH_CONVERT));	/* start with smaller blk num */
+	for (i = 0; i < 2; forward = !forward, i++) {
+		if (forward)
+			blkno = INT_GET(info->forw, ARCH_CONVERT);
+		else
+			blkno = INT_GET(info->back, ARCH_CONVERT);
+		if (blkno == 0)
+			continue;
+		error = xfs_da_read_buf(state->args->trans, state->args->dp,
+							    blkno, -1, &bp,
+							    XFS_DATA_FORK);
+		if (error)
+			return(error);
+		ASSERT(bp != NULL);
+
+		leaf = (xfs_dir_leafblock_t *)info;
+		count  = INT_GET(leaf->hdr.count, ARCH_CONVERT);
+		bytes  = state->blocksize - (state->blocksize>>2);
+		bytes -= INT_GET(leaf->hdr.namebytes, ARCH_CONVERT);
+		leaf = bp->data;
+		ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR_LEAF_MAGIC);
+		count += INT_GET(leaf->hdr.count, ARCH_CONVERT);
+		bytes -= INT_GET(leaf->hdr.namebytes, ARCH_CONVERT);
+		bytes -= count * ((uint)sizeof(xfs_dir_leaf_name_t) - 1);
+		bytes -= count * (uint)sizeof(xfs_dir_leaf_entry_t);
+		bytes -= (uint)sizeof(xfs_dir_leaf_hdr_t);
+		if (bytes >= 0)
+			break;	/* fits with at least 25% to spare */
+
+		xfs_da_brelse(state->args->trans, bp);
+	}
+	if (i >= 2) {
+		*action = 0;
+		return(0);
+	}
+	xfs_da_buf_done(bp);
+
+	/*
+	 * Make altpath point to the block we want to keep (the lower
+	 * numbered block) and path point to the block we want to drop.
+	 */
+	memcpy(&state->altpath, &state->path, sizeof(state->path));
+	if (blkno < blk->blkno) {
+		error = xfs_da_path_shift(state, &state->altpath, forward,
+						 0, &retval);
+	} else {
+		error = xfs_da_path_shift(state, &state->path, forward,
+						 0, &retval);
+	}
+	if (error)
+		return(error);
+	if (retval) {
+		*action = 0;
+	} else {
+		*action = 1;
+	}
+	return(0);
+}
+
+/*
+ * Remove a name from the leaf directory structure.
+ *
+ * Return 1 if leaf is less than 37% full, 0 if >= 37% full.
+ * If two leaves are 37% full, when combined they will leave 25% free.
+ */
+int
+xfs_dir_leaf_remove(xfs_trans_t *trans, xfs_dabuf_t *bp, int index)
+{
+	xfs_dir_leafblock_t *leaf;
+	xfs_dir_leaf_hdr_t *hdr;
+	xfs_dir_leaf_map_t *map;
+	xfs_dir_leaf_entry_t *entry;
+	xfs_dir_leaf_name_t *namest;
+	int before, after, smallest, entsize;
+	int tablesize, tmp, i;
+	xfs_mount_t *mp;
+
+	leaf = bp->data;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR_LEAF_MAGIC);
+	hdr = &leaf->hdr;
+	mp = trans->t_mountp;
+	ASSERT((INT_GET(hdr->count, ARCH_CONVERT) > 0) && (INT_GET(hdr->count, ARCH_CONVERT) < (XFS_LBSIZE(mp)/8)));
+	ASSERT((index >= 0) && (index < INT_GET(hdr->count, ARCH_CONVERT)));
+	ASSERT(INT_GET(hdr->firstused, ARCH_CONVERT) >= ((INT_GET(hdr->count, ARCH_CONVERT)*sizeof(*entry))+sizeof(*hdr)));
+	entry = &leaf->entries[index];
+	ASSERT(INT_GET(entry->nameidx, ARCH_CONVERT) >= INT_GET(hdr->firstused, ARCH_CONVERT));
+	ASSERT(INT_GET(entry->nameidx, ARCH_CONVERT) < XFS_LBSIZE(mp));
+
+	/*
+	 * Scan through free region table:
+	 *    check for adjacency of free'd entry with an existing one,
+	 *    find smallest free region in case we need to replace it,
+	 *    adjust any map that borders the entry table,
+	 */
+	tablesize = INT_GET(hdr->count, ARCH_CONVERT) * (uint)sizeof(xfs_dir_leaf_entry_t)
+			+ (uint)sizeof(xfs_dir_leaf_hdr_t);
+	map = &hdr->freemap[0];
+	tmp = INT_GET(map->size, ARCH_CONVERT);
+	before = after = -1;
+	smallest = XFS_DIR_LEAF_MAPSIZE - 1;
+	entsize = XFS_DIR_LEAF_ENTSIZE_BYENTRY(entry);
+	for (i = 0; i < XFS_DIR_LEAF_MAPSIZE; map++, i++) {
+		ASSERT(INT_GET(map->base, ARCH_CONVERT) < XFS_LBSIZE(mp));
+		ASSERT(INT_GET(map->size, ARCH_CONVERT) < XFS_LBSIZE(mp));
+		if (INT_GET(map->base, ARCH_CONVERT) == tablesize) {
+			INT_MOD(map->base, ARCH_CONVERT, -((uint)sizeof(xfs_dir_leaf_entry_t)));
+			INT_MOD(map->size, ARCH_CONVERT, (uint)sizeof(xfs_dir_leaf_entry_t));
+		}
+
+		if ((INT_GET(map->base, ARCH_CONVERT) + INT_GET(map->size, ARCH_CONVERT)) == INT_GET(entry->nameidx, ARCH_CONVERT)) {
+			before = i;
+		} else if (INT_GET(map->base, ARCH_CONVERT) == (INT_GET(entry->nameidx, ARCH_CONVERT) + entsize)) {
+			after = i;
+		} else if (INT_GET(map->size, ARCH_CONVERT) < tmp) {
+			tmp = INT_GET(map->size, ARCH_CONVERT);
+			smallest = i;
+		}
+	}
+
+	/*
+	 * Coalesce adjacent freemap regions,
+	 * or replace the smallest region.
+	 */
+	if ((before >= 0) || (after >= 0)) {
+		if ((before >= 0) && (after >= 0)) {
+			map = &hdr->freemap[before];
+			INT_MOD(map->size, ARCH_CONVERT, entsize);
+			INT_MOD(map->size, ARCH_CONVERT, INT_GET(hdr->freemap[after].size, ARCH_CONVERT));
+			INT_ZERO(hdr->freemap[after].base, ARCH_CONVERT);
+			INT_ZERO(hdr->freemap[after].size, ARCH_CONVERT);
+		} else if (before >= 0) {
+			map = &hdr->freemap[before];
+			INT_MOD(map->size, ARCH_CONVERT, entsize);
+		} else {
+			map = &hdr->freemap[after];
+			INT_COPY(map->base, entry->nameidx, ARCH_CONVERT);
+			INT_MOD(map->size, ARCH_CONVERT, entsize);
+		}
+	} else {
+		/*
+		 * Replace smallest region (if it is smaller than free'd entry)
+		 */
+		map = &hdr->freemap[smallest];
+		if (INT_GET(map->size, ARCH_CONVERT) < entsize) {
+			INT_COPY(map->base, entry->nameidx, ARCH_CONVERT);
+			INT_SET(map->size, ARCH_CONVERT, entsize);
+		}
+	}
+
+	/*
+	 * Did we remove the first entry?
+	 */
+	if (INT_GET(entry->nameidx, ARCH_CONVERT) == INT_GET(hdr->firstused, ARCH_CONVERT))
+		smallest = 1;
+	else
+		smallest = 0;
+
+	/*
+	 * Compress the remaining entries and zero out the removed stuff.
+	 */
+	namest = XFS_DIR_LEAF_NAMESTRUCT(leaf, INT_GET(entry->nameidx, ARCH_CONVERT));
+	memset((char *)namest, 0, entsize);
+	xfs_da_log_buf(trans, bp, XFS_DA_LOGRANGE(leaf, namest, entsize));
+
+	INT_MOD(hdr->namebytes, ARCH_CONVERT, -(entry->namelen));
+	tmp = (INT_GET(hdr->count, ARCH_CONVERT) - index) * (uint)sizeof(xfs_dir_leaf_entry_t);
+	memmove(entry, entry + 1, tmp);
+	INT_MOD(hdr->count, ARCH_CONVERT, -1);
+	xfs_da_log_buf(trans, bp,
+	    XFS_DA_LOGRANGE(leaf, entry, tmp + (uint)sizeof(*entry)));
+	entry = &leaf->entries[INT_GET(hdr->count, ARCH_CONVERT)];
+	memset((char *)entry, 0, sizeof(xfs_dir_leaf_entry_t));
+
+	/*
+	 * If we removed the first entry, re-find the first used byte
+	 * in the name area.  Note that if the entry was the "firstused",
+	 * then we don't have a "hole" in our block resulting from
+	 * removing the name.
+	 */
+	if (smallest) {
+		tmp = XFS_LBSIZE(mp);
+		entry = &leaf->entries[0];
+		for (i = INT_GET(hdr->count, ARCH_CONVERT)-1; i >= 0; entry++, i--) {
+			ASSERT(INT_GET(entry->nameidx, ARCH_CONVERT) >= INT_GET(hdr->firstused, ARCH_CONVERT));
+			ASSERT(INT_GET(entry->nameidx, ARCH_CONVERT) < XFS_LBSIZE(mp));
+			if (INT_GET(entry->nameidx, ARCH_CONVERT) < tmp)
+				tmp = INT_GET(entry->nameidx, ARCH_CONVERT);
+		}
+		INT_SET(hdr->firstused, ARCH_CONVERT, tmp);
+		if (INT_ISZERO(hdr->firstused, ARCH_CONVERT))
+			INT_SET(hdr->firstused, ARCH_CONVERT, tmp - 1);
+	} else {
+		hdr->holes = 1;		/* mark as needing compaction */
+	}
+
+	xfs_da_log_buf(trans, bp, XFS_DA_LOGRANGE(leaf, hdr, sizeof(*hdr)));
+
+	/*
+	 * Check if leaf is less than 50% full, caller may want to
+	 * "join" the leaf with a sibling if so.
+	 */
+	tmp  = (uint)sizeof(xfs_dir_leaf_hdr_t);
+	tmp += INT_GET(leaf->hdr.count, ARCH_CONVERT) * (uint)sizeof(xfs_dir_leaf_entry_t);
+	tmp += INT_GET(leaf->hdr.count, ARCH_CONVERT) * ((uint)sizeof(xfs_dir_leaf_name_t) - 1);
+	tmp += INT_GET(leaf->hdr.namebytes, ARCH_CONVERT);
+	if (tmp < mp->m_dir_magicpct)
+		return(1);			/* leaf is < 37% full */
+	return(0);
+}
+
+/*
+ * Move all the directory entries from drop_leaf into save_leaf.
+ */
+void
+xfs_dir_leaf_unbalance(xfs_da_state_t *state, xfs_da_state_blk_t *drop_blk,
+				      xfs_da_state_blk_t *save_blk)
+{
+	xfs_dir_leafblock_t *drop_leaf, *save_leaf, *tmp_leaf;
+	xfs_dir_leaf_hdr_t *drop_hdr, *save_hdr, *tmp_hdr;
+	xfs_mount_t *mp;
+	char *tmpbuffer;
+
+	/*
+	 * Set up environment.
+	 */
+	mp = state->mp;
+	ASSERT(drop_blk->magic == XFS_DIR_LEAF_MAGIC);
+	ASSERT(save_blk->magic == XFS_DIR_LEAF_MAGIC);
+	drop_leaf = drop_blk->bp->data;
+	save_leaf = save_blk->bp->data;
+	ASSERT(INT_GET(drop_leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR_LEAF_MAGIC);
+	ASSERT(INT_GET(save_leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR_LEAF_MAGIC);
+	drop_hdr = &drop_leaf->hdr;
+	save_hdr = &save_leaf->hdr;
+
+	/*
+	 * Save last hashval from dying block for later Btree fixup.
+	 */
+	drop_blk->hashval = INT_GET(drop_leaf->entries[ drop_leaf->hdr.count-1 ].hashval, ARCH_CONVERT);
+
+	/*
+	 * Check if we need a temp buffer, or can we do it in place.
+	 * Note that we don't check "leaf" for holes because we will
+	 * always be dropping it, toosmall() decided that for us already.
+	 */
+	if (save_hdr->holes == 0) {
+		/*
+		 * dest leaf has no holes, so we add there.  May need
+		 * to make some room in the entry array.
+		 */
+		if (xfs_dir_leaf_order(save_blk->bp, drop_blk->bp)) {
+			xfs_dir_leaf_moveents(drop_leaf, 0, save_leaf, 0,
+						 (int)INT_GET(drop_hdr->count, ARCH_CONVERT), mp);
+		} else {
+			xfs_dir_leaf_moveents(drop_leaf, 0,
+					      save_leaf, INT_GET(save_hdr->count, ARCH_CONVERT),
+					      (int)INT_GET(drop_hdr->count, ARCH_CONVERT), mp);
+		}
+	} else {
+		/*
+		 * Destination has holes, so we make a temporary copy
+		 * of the leaf and add them both to that.
+		 */
+		tmpbuffer = kmem_alloc(state->blocksize, KM_SLEEP);
+		ASSERT(tmpbuffer != NULL);
+		memset(tmpbuffer, 0, state->blocksize);
+		tmp_leaf = (xfs_dir_leafblock_t *)tmpbuffer;
+		tmp_hdr = &tmp_leaf->hdr;
+		tmp_hdr->info = save_hdr->info;	/* struct copy */
+		INT_ZERO(tmp_hdr->count, ARCH_CONVERT);
+		INT_SET(tmp_hdr->firstused, ARCH_CONVERT, state->blocksize);
+		if (INT_ISZERO(tmp_hdr->firstused, ARCH_CONVERT))
+			INT_SET(tmp_hdr->firstused, ARCH_CONVERT, state->blocksize - 1);
+		INT_ZERO(tmp_hdr->namebytes, ARCH_CONVERT);
+		if (xfs_dir_leaf_order(save_blk->bp, drop_blk->bp)) {
+			xfs_dir_leaf_moveents(drop_leaf, 0, tmp_leaf, 0,
+						 (int)INT_GET(drop_hdr->count, ARCH_CONVERT), mp);
+			xfs_dir_leaf_moveents(save_leaf, 0,
+					      tmp_leaf, INT_GET(tmp_leaf->hdr.count, ARCH_CONVERT),
+					      (int)INT_GET(save_hdr->count, ARCH_CONVERT), mp);
+		} else {
+			xfs_dir_leaf_moveents(save_leaf, 0, tmp_leaf, 0,
+						 (int)INT_GET(save_hdr->count, ARCH_CONVERT), mp);
+			xfs_dir_leaf_moveents(drop_leaf, 0,
+					      tmp_leaf, INT_GET(tmp_leaf->hdr.count, ARCH_CONVERT),
+					      (int)INT_GET(drop_hdr->count, ARCH_CONVERT), mp);
+		}
+		memcpy(save_leaf, tmp_leaf, state->blocksize);
+		kmem_free(tmpbuffer, state->blocksize);
+	}
+
+	xfs_da_log_buf(state->args->trans, save_blk->bp, 0,
+					   state->blocksize - 1);
+
+	/*
+	 * Copy out last hashval in each block for B-tree code.
+	 */
+	save_blk->hashval = INT_GET(save_leaf->entries[ INT_GET(save_leaf->hdr.count, ARCH_CONVERT)-1 ].hashval, ARCH_CONVERT);
+}
+
+/*========================================================================
+ * Routines used for finding things in the Btree.
+ *========================================================================*/
+
+/*
+ * Look up a name in a leaf directory structure.
+ * This is the internal routine, it uses the caller's buffer.
+ *
+ * Note that duplicate keys are allowed, but only check within the
+ * current leaf node.  The Btree code must check in adjacent leaf nodes.
+ *
+ * Return in *index the index into the entry[] array of either the found
+ * entry, or where the entry should have been (insert before that entry).
+ *
+ * Don't change the args->inumber unless we find the filename.
+ */
+int
+xfs_dir_leaf_lookup_int(xfs_dabuf_t *bp, xfs_da_args_t *args, int *index)
+{
+	xfs_dir_leafblock_t *leaf;
+	xfs_dir_leaf_entry_t *entry;
+	xfs_dir_leaf_name_t *namest;
+	int probe, span;
+	xfs_dahash_t hashval;
+
+	leaf = bp->data;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR_LEAF_MAGIC);
+	ASSERT(INT_GET(leaf->hdr.count, ARCH_CONVERT) < (XFS_LBSIZE(args->dp->i_mount)/8));
+
+	/*
+	 * Binary search.  (note: small blocks will skip this loop)
+	 */
+	hashval = args->hashval;
+	probe = span = INT_GET(leaf->hdr.count, ARCH_CONVERT) / 2;
+	for (entry = &leaf->entries[probe]; span > 4;
+		   entry = &leaf->entries[probe]) {
+		span /= 2;
+		if (INT_GET(entry->hashval, ARCH_CONVERT) < hashval)
+			probe += span;
+		else if (INT_GET(entry->hashval, ARCH_CONVERT) > hashval)
+			probe -= span;
+		else
+			break;
+	}
+	ASSERT((probe >= 0) && \
+	       ((INT_ISZERO(leaf->hdr.count, ARCH_CONVERT)) || (probe < INT_GET(leaf->hdr.count, ARCH_CONVERT))));
+	ASSERT((span <= 4) || (INT_GET(entry->hashval, ARCH_CONVERT) == hashval));
+
+	/*
+	 * Since we may have duplicate hashval's, find the first matching
+	 * hashval in the leaf.
+	 */
+	while ((probe > 0) && (INT_GET(entry->hashval, ARCH_CONVERT) >= hashval)) {
+		entry--;
+		probe--;
+	}
+	while ((probe < INT_GET(leaf->hdr.count, ARCH_CONVERT)) && (INT_GET(entry->hashval, ARCH_CONVERT) < hashval)) {
+		entry++;
+		probe++;
+	}
+	if ((probe == INT_GET(leaf->hdr.count, ARCH_CONVERT)) || (INT_GET(entry->hashval, ARCH_CONVERT) != hashval)) {
+		*index = probe;
+		ASSERT(args->oknoent);
+		return(XFS_ERROR(ENOENT));
+	}
+
+	/*
+	 * Duplicate keys may be present, so search all of them for a match.
+	 */
+	while ((probe < INT_GET(leaf->hdr.count, ARCH_CONVERT)) && (INT_GET(entry->hashval, ARCH_CONVERT) == hashval)) {
+		namest = XFS_DIR_LEAF_NAMESTRUCT(leaf, INT_GET(entry->nameidx, ARCH_CONVERT));
+		if (entry->namelen == args->namelen &&
+		    namest->name[0] == args->name[0] &&
+		    memcmp(args->name, namest->name, args->namelen) == 0) {
+			XFS_DIR_SF_GET_DIRINO_ARCH(&namest->inumber, &args->inumber, ARCH_CONVERT);
+			*index = probe;
+			return(XFS_ERROR(EEXIST));
+		}
+		entry++;
+		probe++;
+	}
+	*index = probe;
+	ASSERT(probe == INT_GET(leaf->hdr.count, ARCH_CONVERT) || args->oknoent);
+	return(XFS_ERROR(ENOENT));
+}
+
+/*========================================================================
+ * Utility routines.
+ *========================================================================*/
+
+/*
+ * Move the indicated entries from one leaf to another.
+ * NOTE: this routine modifies both source and destination leaves.
+ */
+/* ARGSUSED */
+STATIC void
+xfs_dir_leaf_moveents(xfs_dir_leafblock_t *leaf_s, int start_s,
+		      xfs_dir_leafblock_t *leaf_d, int start_d,
+		      int count, xfs_mount_t *mp)
+{
+	xfs_dir_leaf_hdr_t *hdr_s, *hdr_d;
+	xfs_dir_leaf_entry_t *entry_s, *entry_d;
+	int tmp, i;
+
+	/*
+	 * Check for nothing to do.
+	 */
+	if (count == 0)
+		return;
+
+	/*
+	 * Set up environment.
+	 */
+	ASSERT(INT_GET(leaf_s->hdr.info.magic, ARCH_CONVERT) == XFS_DIR_LEAF_MAGIC);
+	ASSERT(INT_GET(leaf_d->hdr.info.magic, ARCH_CONVERT) == XFS_DIR_LEAF_MAGIC);
+	hdr_s = &leaf_s->hdr;
+	hdr_d = &leaf_d->hdr;
+	ASSERT((INT_GET(hdr_s->count, ARCH_CONVERT) > 0) && (INT_GET(hdr_s->count, ARCH_CONVERT) < (XFS_LBSIZE(mp)/8)));
+	ASSERT(INT_GET(hdr_s->firstused, ARCH_CONVERT) >=
+		((INT_GET(hdr_s->count, ARCH_CONVERT)*sizeof(*entry_s))+sizeof(*hdr_s)));
+	ASSERT(INT_GET(hdr_d->count, ARCH_CONVERT) < (XFS_LBSIZE(mp)/8));
+	ASSERT(INT_GET(hdr_d->firstused, ARCH_CONVERT) >=
+		((INT_GET(hdr_d->count, ARCH_CONVERT)*sizeof(*entry_d))+sizeof(*hdr_d)));
+
+	ASSERT(start_s < INT_GET(hdr_s->count, ARCH_CONVERT));
+	ASSERT(start_d <= INT_GET(hdr_d->count, ARCH_CONVERT));
+	ASSERT(count <= INT_GET(hdr_s->count, ARCH_CONVERT));
+
+	/*
+	 * Move the entries in the destination leaf up to make a hole?
+	 */
+	if (start_d < INT_GET(hdr_d->count, ARCH_CONVERT)) {
+		tmp  = INT_GET(hdr_d->count, ARCH_CONVERT) - start_d;
+		tmp *= (uint)sizeof(xfs_dir_leaf_entry_t);
+		entry_s = &leaf_d->entries[start_d];
+		entry_d = &leaf_d->entries[start_d + count];
+		memcpy(entry_d, entry_s, tmp);
+	}
+
+	/*
+	 * Copy all entry's in the same (sorted) order,
+	 * but allocate filenames packed and in sequence.
+	 */
+	entry_s = &leaf_s->entries[start_s];
+	entry_d = &leaf_d->entries[start_d];
+	for (i = 0; i < count; entry_s++, entry_d++, i++) {
+		ASSERT(INT_GET(entry_s->nameidx, ARCH_CONVERT) >= INT_GET(hdr_s->firstused, ARCH_CONVERT));
+		tmp = XFS_DIR_LEAF_ENTSIZE_BYENTRY(entry_s);
+		INT_MOD(hdr_d->firstused, ARCH_CONVERT, -(tmp));
+		entry_d->hashval = entry_s->hashval; /* INT_: direct copy */
+		INT_COPY(entry_d->nameidx, hdr_d->firstused, ARCH_CONVERT);
+		entry_d->namelen = entry_s->namelen;
+		ASSERT(INT_GET(entry_d->nameidx, ARCH_CONVERT) + tmp <= XFS_LBSIZE(mp));
+		memcpy(XFS_DIR_LEAF_NAMESTRUCT(leaf_d, INT_GET(entry_d->nameidx, ARCH_CONVERT)),
+		       XFS_DIR_LEAF_NAMESTRUCT(leaf_s, INT_GET(entry_s->nameidx, ARCH_CONVERT)), tmp);
+		ASSERT(INT_GET(entry_s->nameidx, ARCH_CONVERT) + tmp <= XFS_LBSIZE(mp));
+		memset((char *)XFS_DIR_LEAF_NAMESTRUCT(leaf_s, INT_GET(entry_s->nameidx, ARCH_CONVERT)),
+		      0, tmp);
+		INT_MOD(hdr_s->namebytes, ARCH_CONVERT, -(entry_d->namelen));
+		INT_MOD(hdr_d->namebytes, ARCH_CONVERT, entry_d->namelen);
+		INT_MOD(hdr_s->count, ARCH_CONVERT, -1);
+		INT_MOD(hdr_d->count, ARCH_CONVERT, +1);
+		tmp  = INT_GET(hdr_d->count, ARCH_CONVERT) * (uint)sizeof(xfs_dir_leaf_entry_t)
+				+ (uint)sizeof(xfs_dir_leaf_hdr_t);
+		ASSERT(INT_GET(hdr_d->firstused, ARCH_CONVERT) >= tmp);
+
+	}
+
+	/*
+	 * Zero out the entries we just copied.
+	 */
+	if (start_s == INT_GET(hdr_s->count, ARCH_CONVERT)) {
+		tmp = count * (uint)sizeof(xfs_dir_leaf_entry_t);
+		entry_s = &leaf_s->entries[start_s];
+		ASSERT((char *)entry_s + tmp <= (char *)leaf_s + XFS_LBSIZE(mp));
+		memset((char *)entry_s, 0, tmp);
+	} else {
+		/*
+		 * Move the remaining entries down to fill the hole,
+		 * then zero the entries at the top.
+		 */
+		tmp  = INT_GET(hdr_s->count, ARCH_CONVERT) - count;
+		tmp *= (uint)sizeof(xfs_dir_leaf_entry_t);
+		entry_s = &leaf_s->entries[start_s + count];
+		entry_d = &leaf_s->entries[start_s];
+		memcpy(entry_d, entry_s, tmp);
+
+		tmp = count * (uint)sizeof(xfs_dir_leaf_entry_t);
+		entry_s = &leaf_s->entries[INT_GET(hdr_s->count, ARCH_CONVERT)];
+		ASSERT((char *)entry_s + tmp <= (char *)leaf_s + XFS_LBSIZE(mp));
+		memset((char *)entry_s, 0, tmp);
+	}
+
+	/*
+	 * Fill in the freemap information
+	 */
+	INT_SET(hdr_d->freemap[0].base, ARCH_CONVERT, (uint)sizeof(xfs_dir_leaf_hdr_t));
+	INT_MOD(hdr_d->freemap[0].base, ARCH_CONVERT, INT_GET(hdr_d->count, ARCH_CONVERT) * (uint)sizeof(xfs_dir_leaf_entry_t));
+	INT_SET(hdr_d->freemap[0].size, ARCH_CONVERT, INT_GET(hdr_d->firstused, ARCH_CONVERT) - INT_GET(hdr_d->freemap[0].base, ARCH_CONVERT));
+	INT_SET(hdr_d->freemap[1].base, ARCH_CONVERT, INT_ZERO(hdr_d->freemap[2].base, ARCH_CONVERT));
+	INT_SET(hdr_d->freemap[1].size, ARCH_CONVERT, INT_ZERO(hdr_d->freemap[2].size, ARCH_CONVERT));
+	hdr_s->holes = 1;	/* leaf may not be compact */
+}
+
+/*
+ * Compare two leaf blocks "order".
+ */
+int
+xfs_dir_leaf_order(xfs_dabuf_t *leaf1_bp, xfs_dabuf_t *leaf2_bp)
+{
+	xfs_dir_leafblock_t *leaf1, *leaf2;
+
+	leaf1 = leaf1_bp->data;
+	leaf2 = leaf2_bp->data;
+	ASSERT((INT_GET(leaf1->hdr.info.magic, ARCH_CONVERT) == XFS_DIR_LEAF_MAGIC) &&
+	       (INT_GET(leaf2->hdr.info.magic, ARCH_CONVERT) == XFS_DIR_LEAF_MAGIC));
+	if ((INT_GET(leaf1->hdr.count, ARCH_CONVERT) > 0) && (INT_GET(leaf2->hdr.count, ARCH_CONVERT) > 0) &&
+	    ((INT_GET(leaf2->entries[ 0 ].hashval, ARCH_CONVERT) <
+	      INT_GET(leaf1->entries[ 0 ].hashval, ARCH_CONVERT)) ||
+	     (INT_GET(leaf2->entries[ INT_GET(leaf2->hdr.count, ARCH_CONVERT)-1 ].hashval, ARCH_CONVERT) <
+	      INT_GET(leaf1->entries[ INT_GET(leaf1->hdr.count, ARCH_CONVERT)-1 ].hashval, ARCH_CONVERT)))) {
+		return(1);
+	}
+	return(0);
+}
+
+/*
+ * Pick up the last hashvalue from a leaf block.
+ */
+xfs_dahash_t
+xfs_dir_leaf_lasthash(xfs_dabuf_t *bp, int *count)
+{
+	xfs_dir_leafblock_t *leaf;
+
+	leaf = bp->data;
+	ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR_LEAF_MAGIC);
+	if (count)
+		*count = INT_GET(leaf->hdr.count, ARCH_CONVERT);
+	if (INT_ISZERO(leaf->hdr.count, ARCH_CONVERT))
+		return(0);
+	return(INT_GET(leaf->entries[ INT_GET(leaf->hdr.count, ARCH_CONVERT)-1 ].hashval, ARCH_CONVERT));
+}
+
+/*
+ * Copy out directory entries for getdents(), for leaf directories.
+ */
+int
+xfs_dir_leaf_getdents_int(
+	xfs_dabuf_t	*bp,
+	xfs_inode_t	*dp,
+	xfs_dablk_t	bno,
+	uio_t		*uio,
+	int		*eobp,
+	xfs_dirent_t	*dbp,
+	xfs_dir_put_t	put,
+	xfs_daddr_t		nextda)
+{
+	xfs_dir_leafblock_t	*leaf;
+	xfs_dir_leaf_entry_t	*entry;
+	xfs_dir_leaf_name_t	*namest;
+	int			entno, want_entno, i, nextentno;
+	xfs_mount_t		*mp;
+	xfs_dahash_t		cookhash;
+	xfs_dahash_t		nexthash = 0;
+#if (BITS_PER_LONG == 32)
+	xfs_dahash_t		lasthash = XFS_DA_MAXHASH;
+#endif
+	xfs_dir_put_args_t	p;
+
+	mp = dp->i_mount;
+	leaf = bp->data;
+	if (INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) != XFS_DIR_LEAF_MAGIC) {
+		*eobp = 1;
+		return(XFS_ERROR(ENOENT));	/* XXX wrong code */
+	}
+
+	want_entno = XFS_DA_COOKIE_ENTRY(mp, uio->uio_offset);
+
+	cookhash = XFS_DA_COOKIE_HASH(mp, uio->uio_offset);
+
+	xfs_dir_trace_g_dul("leaf: start", dp, uio, leaf);
+
+	/*
+	 * Re-find our place.
+	 */
+	for (i = entno = 0, entry = &leaf->entries[0];
+		     i < INT_GET(leaf->hdr.count, ARCH_CONVERT);
+			     entry++, i++) {
+
+		namest = XFS_DIR_LEAF_NAMESTRUCT(leaf,
+				    INT_GET(entry->nameidx, ARCH_CONVERT));
+
+		if (unlikely(
+		    ((char *)namest < (char *)leaf) ||
+		    ((char *)namest >= (char *)leaf + XFS_LBSIZE(mp)))) {
+			XFS_CORRUPTION_ERROR("xfs_dir_leaf_getdents_int(1)",
+					     XFS_ERRLEVEL_LOW, mp, leaf);
+			xfs_dir_trace_g_du("leaf: corrupted", dp, uio);
+			return XFS_ERROR(EFSCORRUPTED);
+		}
+		if (INT_GET(entry->hashval, ARCH_CONVERT) >= cookhash) {
+			if (   entno < want_entno
+			    && INT_GET(entry->hashval, ARCH_CONVERT)
+							== cookhash) {
+				/*
+				 * Trying to get to a particular offset in a
+				 * run of equal-hashval entries.
+				 */
+				entno++;
+			} else if (   want_entno > 0
+				   && entno == want_entno
+				   && INT_GET(entry->hashval, ARCH_CONVERT)
+							== cookhash) {
+				break;
+			} else {
+				entno = 0;
+				break;
+			}
+		}
+	}
+
+	if (i == INT_GET(leaf->hdr.count, ARCH_CONVERT)) {
+		xfs_dir_trace_g_du("leaf: hash not found", dp, uio);
+		if (!INT_GET(leaf->hdr.info.forw, ARCH_CONVERT))
+			uio->uio_offset =
+				XFS_DA_MAKE_COOKIE(mp, 0, 0, XFS_DA_MAXHASH);
+		/*
+		 * Don't set uio_offset if there's another block:
+		 * the node code will be setting uio_offset anyway.
+		 */
+		*eobp = 0;
+		return(0);
+	}
+	xfs_dir_trace_g_due("leaf: hash found", dp, uio, entry);
+
+	p.dbp = dbp;
+	p.put = put;
+	p.uio = uio;
+
+	/*
+	 * We're synchronized, start copying entries out to the user.
+	 */
+	for (; entno >= 0 && i < INT_GET(leaf->hdr.count, ARCH_CONVERT);
+			     entry++, i++, (entno = nextentno)) {
+		int lastresid=0, retval;
+		xfs_dircook_t lastoffset;
+		xfs_dahash_t thishash;
+
+		/*
+		 * Check for a damaged directory leaf block and pick up
+		 * the inode number from this entry.
+		 */
+		namest = XFS_DIR_LEAF_NAMESTRUCT(leaf,
+				    INT_GET(entry->nameidx, ARCH_CONVERT));
+
+		if (unlikely(
+		    ((char *)namest < (char *)leaf) ||
+		    ((char *)namest >= (char *)leaf + XFS_LBSIZE(mp)))) {
+			XFS_CORRUPTION_ERROR("xfs_dir_leaf_getdents_int(2)",
+					     XFS_ERRLEVEL_LOW, mp, leaf);
+			xfs_dir_trace_g_du("leaf: corrupted", dp, uio);
+			return XFS_ERROR(EFSCORRUPTED);
+		}
+
+		xfs_dir_trace_g_duc("leaf: middle cookie  ",
+						   dp, uio, p.cook.o);
+
+		if (i < (INT_GET(leaf->hdr.count, ARCH_CONVERT) - 1)) {
+			nexthash = INT_GET(entry[1].hashval, ARCH_CONVERT);
+
+			if (nexthash == INT_GET(entry->hashval, ARCH_CONVERT))
+				nextentno = entno + 1;
+			else
+				nextentno = 0;
+			XFS_PUT_COOKIE(p.cook, mp, bno, nextentno, nexthash);
+			xfs_dir_trace_g_duc("leaf: middle cookie  ",
+						   dp, uio, p.cook.o);
+
+		} else if ((thishash = INT_GET(leaf->hdr.info.forw,
+							ARCH_CONVERT))) {
+			xfs_dabuf_t *bp2;
+			xfs_dir_leafblock_t *leaf2;
+
+			ASSERT(nextda != -1);
+
+			retval = xfs_da_read_buf(dp->i_transp, dp, thishash,
+						 nextda, &bp2, XFS_DATA_FORK);
+			if (retval)
+				return(retval);
+
+			ASSERT(bp2 != NULL);
+
+			leaf2 = bp2->data;
+
+			if (unlikely(
+			       (INT_GET(leaf2->hdr.info.magic, ARCH_CONVERT)
+						!= XFS_DIR_LEAF_MAGIC)
+			    || (INT_GET(leaf2->hdr.info.back, ARCH_CONVERT)
+						!= bno))) {	/* GROT */
+				XFS_CORRUPTION_ERROR("xfs_dir_leaf_getdents_int(3)",
+						     XFS_ERRLEVEL_LOW, mp,
+						     leaf2);
+				xfs_da_brelse(dp->i_transp, bp2);
+
+				return(XFS_ERROR(EFSCORRUPTED));
+			}
+
+			nexthash = INT_GET(leaf2->entries[0].hashval,
+								ARCH_CONVERT);
+			nextentno = -1;
+			XFS_PUT_COOKIE(p.cook, mp, thishash, 0, nexthash);
+			xfs_da_brelse(dp->i_transp, bp2);
+			xfs_dir_trace_g_duc("leaf: next blk cookie",
+						   dp, uio, p.cook.o);
+		} else {
+			nextentno = -1;
+			XFS_PUT_COOKIE(p.cook, mp, 0, 0, XFS_DA_MAXHASH);
+		}
+
+		/*
+		 * Save off the cookie so we can fall back should the
+		 * 'put' into the outgoing buffer fails.  To handle a run
+		 * of equal-hashvals, the off_t structure on 64bit
+		 * builds has entno built into the cookie to ID the
+		 * entry.  On 32bit builds, we only have space for the
+		 * hashval so we can't ID specific entries within a group
+		 * of same hashval entries.   For this, lastoffset is set
+		 * to the first in the run of equal hashvals so we don't
+		 * include any entries unless we can include all entries
+		 * that share the same hashval.  Hopefully the buffer
+		 * provided is big enough to handle it (see pv763517).
+		 */
+#if (BITS_PER_LONG == 32)
+		if ((thishash = INT_GET(entry->hashval, ARCH_CONVERT))
+								!= lasthash) {
+			XFS_PUT_COOKIE(lastoffset, mp, bno, entno, thishash);
+			lastresid = uio->uio_resid;
+			lasthash = thishash;
+		} else {
+			xfs_dir_trace_g_duc("leaf: DUP COOKIES, skipped",
+						   dp, uio, p.cook.o);
+		}
+#else
+		thishash = INT_GET(entry->hashval, ARCH_CONVERT);
+		XFS_PUT_COOKIE(lastoffset, mp, bno, entno, thishash);
+		lastresid = uio->uio_resid;
+#endif /* BITS_PER_LONG == 32 */
+
+		/*
+		 * Put the current entry into the outgoing buffer.  If we fail
+		 * then restore the UIO to the first entry in the current
+		 * run of equal-hashval entries (probably one 1 entry long).
+		 */
+		p.ino = XFS_GET_DIR_INO_ARCH(mp, namest->inumber, ARCH_CONVERT);
+#if XFS_BIG_INUMS
+		p.ino += mp->m_inoadd;
+#endif
+		p.name = (char *)namest->name;
+		p.namelen = entry->namelen;
+
+		retval = p.put(&p);
+
+		if (!p.done) {
+			uio->uio_offset = lastoffset.o;
+			uio->uio_resid = lastresid;
+
+			*eobp = 1;
+
+			xfs_dir_trace_g_du("leaf: E-O-B", dp, uio);
+
+			return(retval);
+		}
+	}
+
+	uio->uio_offset = p.cook.o;
+
+	*eobp = 0;
+
+	xfs_dir_trace_g_du("leaf: E-O-F", dp, uio);
+
+	return(0);
+}
+
+/*
+ * Format a dirent64 structure and copy it out the the user's buffer.
+ */
+int
+xfs_dir_put_dirent64_direct(xfs_dir_put_args_t *pa)
+{
+	iovec_t *iovp;
+	int reclen, namelen;
+	xfs_dirent_t *idbp;
+	uio_t *uio;
+
+	namelen = pa->namelen;
+	reclen = DIRENTSIZE(namelen);
+	uio = pa->uio;
+	if (reclen > uio->uio_resid) {
+		pa->done = 0;
+		return 0;
+	}
+	iovp = uio->uio_iov;
+	idbp = (xfs_dirent_t *)iovp->iov_base;
+	iovp->iov_base = (char *)idbp + reclen;
+	iovp->iov_len -= reclen;
+	uio->uio_resid -= reclen;
+	idbp->d_reclen = reclen;
+	idbp->d_ino = pa->ino;
+	idbp->d_off = pa->cook.o;
+	idbp->d_name[namelen] = '\0';
+	pa->done = 1;
+	memcpy(idbp->d_name, pa->name, namelen);
+	return 0;
+}
+
+/*
+ * Format a dirent64 structure and copy it out the the user's buffer.
+ */
+int
+xfs_dir_put_dirent64_uio(xfs_dir_put_args_t *pa)
+{
+	int		retval, reclen, namelen;
+	xfs_dirent_t	*idbp;
+	uio_t		*uio;
+
+	namelen = pa->namelen;
+	reclen = DIRENTSIZE(namelen);
+	uio = pa->uio;
+	if (reclen > uio->uio_resid) {
+		pa->done = 0;
+		return 0;
+	}
+	idbp = pa->dbp;
+	idbp->d_reclen = reclen;
+	idbp->d_ino = pa->ino;
+	idbp->d_off = pa->cook.o;
+	idbp->d_name[namelen] = '\0';
+	memcpy(idbp->d_name, pa->name, namelen);
+	retval = uio_read((caddr_t)idbp, reclen, uio);
+	pa->done = (retval == 0);
+	return retval;
+}
diff --git a/fs/xfs/xfs_dir_leaf.h b/fs/xfs/xfs_dir_leaf.h
new file mode 100644
index 00000000000000..ad74774011d21d
--- /dev/null
+++ b/fs/xfs/xfs_dir_leaf.h
@@ -0,0 +1,253 @@
+/*
+ * Copyright (c) 2000-2001 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_DIR_LEAF_H__
+#define	__XFS_DIR_LEAF_H__
+
+/*
+ * Directory layout, internal structure, access macros, etc.
+ *
+ * Large directories are structured around Btrees where all the data
+ * elements are in the leaf nodes.  Filenames are hashed into an int,
+ * then that int is used as the index into the Btree.  Since the hashval
+ * of a filename may not be unique, we may have duplicate keys.  The
+ * internal links in the Btree are logical block offsets into the file.
+ */
+
+struct uio;
+struct xfs_bmap_free;
+struct xfs_dabuf;
+struct xfs_da_args;
+struct xfs_da_state;
+struct xfs_da_state_blk;
+struct xfs_dir_put_args;
+struct xfs_inode;
+struct xfs_mount;
+struct xfs_trans;
+
+/*========================================================================
+ * Directory Structure when equal to XFS_LBSIZE(mp) bytes.
+ *========================================================================*/
+
+/*
+ * This is the structure of the leaf nodes in the Btree.
+ *
+ * Struct leaf_entry's are packed from the top.  Names grow from the bottom
+ * but are not packed.  The freemap contains run-length-encoded entries
+ * for the free bytes after the leaf_entry's, but only the N largest such,
+ * smaller runs are dropped.  When the freemap doesn't show enough space
+ * for an allocation, we compact the namelist area and try again.  If we
+ * still don't have enough space, then we have to split the block.
+ *
+ * Since we have duplicate hash keys, for each key that matches, compare
+ * the actual string.  The root and intermediate node search always takes
+ * the first-in-the-block key match found, so we should only have to work
+ * "forw"ard.  If none matches, continue with the "forw"ard leaf nodes
+ * until the hash key changes or the filename is found.
+ *
+ * The parent directory and the self-pointer are explicitly represented
+ * (ie: there are entries for "." and "..").
+ *
+ * Note that the count being a __uint16_t limits us to something like a
+ * blocksize of 1.3MB in the face of worst case (short) filenames.
+ */
+#define XFS_DIR_LEAF_MAPSIZE	3	/* how many freespace slots */
+
+typedef struct xfs_dir_leafblock {
+	struct xfs_dir_leaf_hdr {	/* constant-structure header block */
+		xfs_da_blkinfo_t info;	/* block type, links, etc. */
+		__uint16_t count;	/* count of active leaf_entry's */
+		__uint16_t namebytes;	/* num bytes of name strings stored */
+		__uint16_t firstused;	/* first used byte in name area */
+		__uint8_t  holes;	/* != 0 if blk needs compaction */
+		__uint8_t  pad1;
+		struct xfs_dir_leaf_map {/* RLE map of free bytes */
+			__uint16_t base; /* base of free region */
+			__uint16_t size; /* run length of free region */
+		} freemap[XFS_DIR_LEAF_MAPSIZE]; /* N largest free regions */
+	} hdr;
+	struct xfs_dir_leaf_entry {	/* sorted on key, not name */
+		xfs_dahash_t hashval;	/* hash value of name */
+		__uint16_t nameidx;	/* index into buffer of name */
+		__uint8_t namelen;	/* length of name string */
+		__uint8_t pad2;
+	} entries[1];			/* var sized array */
+	struct xfs_dir_leaf_name {
+		xfs_dir_ino_t inumber;	/* inode number for this key */
+		__uint8_t name[1];	/* name string itself */
+	} namelist[1];			/* grows from bottom of buf */
+} xfs_dir_leafblock_t;
+typedef struct xfs_dir_leaf_hdr xfs_dir_leaf_hdr_t;
+typedef struct xfs_dir_leaf_map xfs_dir_leaf_map_t;
+typedef struct xfs_dir_leaf_entry xfs_dir_leaf_entry_t;
+typedef struct xfs_dir_leaf_name xfs_dir_leaf_name_t;
+
+/*
+ * Length of name for which a 512-byte block filesystem
+ * can get a double split.
+ */
+#define	XFS_DIR_LEAF_CAN_DOUBLE_SPLIT_LEN	\
+	(512 - (uint)sizeof(xfs_dir_leaf_hdr_t) - \
+	 (uint)sizeof(xfs_dir_leaf_entry_t) * 2 - \
+	 (uint)sizeof(xfs_dir_leaf_name_t) * 2 - (MAXNAMELEN - 2) + 1 + 1)
+
+typedef int (*xfs_dir_put_t)(struct xfs_dir_put_args *pa);
+
+typedef union {
+	xfs_off_t		o;		/* offset (cookie) */
+	/*
+	 * Watch the order here (endian-ness dependent).
+	 */
+	struct {
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+		xfs_dahash_t	h;	/* hash value */
+		__uint32_t	be;	/* block and entry */
+#else	/* __BYTE_ORDER == __BIG_ENDIAN */
+		__uint32_t	be;	/* block and entry */
+		xfs_dahash_t	h;	/* hash value */
+#endif	/* __BYTE_ORDER == __BIG_ENDIAN */
+	} s;
+} xfs_dircook_t;
+
+#define	XFS_PUT_COOKIE(c,mp,bno,entry,hash)	\
+	((c).s.be = XFS_DA_MAKE_BNOENTRY(mp, bno, entry), (c).s.h = (hash))
+
+#define	XFS_GET_DIR_INO_ARCH(mp,di,arch) \
+    DIRINO_GET_ARCH(&(di),arch)
+#define	XFS_GET_DIR_INO(mp,di) \
+    XFS_GET_DIR_INO_ARCH(mp,di,ARCH_NOCONVERT)
+
+typedef struct xfs_dir_put_args
+{
+	xfs_dircook_t	cook;		/* cookie of (next) entry */
+	xfs_intino_t	ino;		/* inode number */
+	struct xfs_dirent	*dbp;		/* buffer pointer */
+	char		*name;		/* directory entry name */
+	int		namelen;	/* length of name */
+	int		done;		/* output: set if value was stored */
+	xfs_dir_put_t	put;		/* put function ptr (i/o) */
+	struct uio	*uio;		/* uio control structure */
+} xfs_dir_put_args_t;
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR_LEAF_ENTSIZE_BYNAME)
+int xfs_dir_leaf_entsize_byname(int len);
+#define XFS_DIR_LEAF_ENTSIZE_BYNAME(len)	xfs_dir_leaf_entsize_byname(len)
+#else
+#define XFS_DIR_LEAF_ENTSIZE_BYNAME(len)	/* space a name will use */ \
+	((uint)sizeof(xfs_dir_leaf_name_t)-1 + len)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR_LEAF_ENTSIZE_BYENTRY)
+int xfs_dir_leaf_entsize_byentry(xfs_dir_leaf_entry_t *entry);
+#define XFS_DIR_LEAF_ENTSIZE_BYENTRY(entry)	\
+	xfs_dir_leaf_entsize_byentry(entry)
+#else
+#define XFS_DIR_LEAF_ENTSIZE_BYENTRY(entry)	/* space an entry will use */ \
+	((uint)sizeof(xfs_dir_leaf_name_t)-1 + (entry)->namelen)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR_LEAF_NAMESTRUCT)
+xfs_dir_leaf_name_t *
+xfs_dir_leaf_namestruct(xfs_dir_leafblock_t *leafp, int offset);
+#define XFS_DIR_LEAF_NAMESTRUCT(leafp,offset)	\
+	xfs_dir_leaf_namestruct(leafp,offset)
+#else
+#define XFS_DIR_LEAF_NAMESTRUCT(leafp,offset)	/* point to name struct */ \
+	((xfs_dir_leaf_name_t *)&((char *)(leafp))[offset])
+#endif
+
+/*========================================================================
+ * Function prototypes for the kernel.
+ *========================================================================*/
+
+/*
+ * Internal routines when dirsize < XFS_LITINO(mp).
+ */
+int xfs_dir_shortform_create(struct xfs_da_args *args, xfs_ino_t parent);
+int xfs_dir_shortform_addname(struct xfs_da_args *args);
+int xfs_dir_shortform_lookup(struct xfs_da_args *args);
+int xfs_dir_shortform_to_leaf(struct xfs_da_args *args);
+int xfs_dir_shortform_removename(struct xfs_da_args *args);
+int xfs_dir_shortform_getdents(struct xfs_inode *dp, struct uio *uio, int *eofp,
+				      struct xfs_dirent *dbp, xfs_dir_put_t put);
+int xfs_dir_shortform_replace(struct xfs_da_args *args);
+
+/*
+ * Internal routines when dirsize == XFS_LBSIZE(mp).
+ */
+int xfs_dir_leaf_to_node(struct xfs_da_args *args);
+int xfs_dir_leaf_to_shortform(struct xfs_da_args *args);
+
+/*
+ * Routines used for growing the Btree.
+ */
+int	xfs_dir_leaf_create(struct xfs_da_args *args, xfs_dablk_t which_block,
+				   struct xfs_dabuf **bpp);
+int	xfs_dir_leaf_split(struct xfs_da_state *state,
+				  struct xfs_da_state_blk *oldblk,
+				  struct xfs_da_state_blk *newblk);
+int	xfs_dir_leaf_add(struct xfs_dabuf *leaf_buffer,
+				struct xfs_da_args *args, int insertion_index);
+int	xfs_dir_leaf_addname(struct xfs_da_args *args);
+int	xfs_dir_leaf_lookup_int(struct xfs_dabuf *leaf_buffer,
+				       struct xfs_da_args *args,
+				       int *index_found_at);
+int	xfs_dir_leaf_remove(struct xfs_trans *trans,
+				   struct xfs_dabuf *leaf_buffer,
+				   int index_to_remove);
+int	xfs_dir_leaf_getdents_int(struct xfs_dabuf *bp, struct xfs_inode *dp,
+					 xfs_dablk_t bno, struct uio *uio,
+					 int *eobp, struct xfs_dirent *dbp,
+					 xfs_dir_put_t put, xfs_daddr_t nextda);
+
+/*
+ * Routines used for shrinking the Btree.
+ */
+int	xfs_dir_leaf_toosmall(struct xfs_da_state *state, int *retval);
+void	xfs_dir_leaf_unbalance(struct xfs_da_state *state,
+					     struct xfs_da_state_blk *drop_blk,
+					     struct xfs_da_state_blk *save_blk);
+
+/*
+ * Utility routines.
+ */
+uint	xfs_dir_leaf_lasthash(struct xfs_dabuf *bp, int *count);
+int	xfs_dir_leaf_order(struct xfs_dabuf *leaf1_bp,
+				  struct xfs_dabuf *leaf2_bp);
+int	xfs_dir_put_dirent64_direct(xfs_dir_put_args_t *pa);
+int	xfs_dir_put_dirent64_uio(xfs_dir_put_args_t *pa);
+int	xfs_dir_ino_validate(struct xfs_mount *mp, xfs_ino_t ino);
+
+
+/*
+ * Global data.
+ */
+extern xfs_dahash_t	xfs_dir_hash_dot, xfs_dir_hash_dotdot;
+
+#endif /* __XFS_DIR_LEAF_H__ */
diff --git a/fs/xfs/xfs_dir_sf.h b/fs/xfs/xfs_dir_sf.h
new file mode 100644
index 00000000000000..a363d1a01356cc
--- /dev/null
+++ b/fs/xfs/xfs_dir_sf.h
@@ -0,0 +1,178 @@
+/*
+ * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_DIR_SF_H__
+#define	__XFS_DIR_SF_H__
+
+/*
+ * Directory layout when stored internal to an inode.
+ *
+ * Small directories are packed as tightly as possible so as to
+ * fit into the literal area of the inode.
+ */
+
+typedef struct { __uint8_t i[sizeof(xfs_ino_t)]; } xfs_dir_ino_t;
+
+/*
+ * The parent directory has a dedicated field, and the self-pointer must
+ * be calculated on the fly.
+ *
+ * Entries are packed toward the top as tight as possible.  The header
+ * and the elements much be memcpy'd out into a work area to get correct
+ * alignment for the inode number fields.
+ */
+typedef struct xfs_dir_shortform {
+	struct xfs_dir_sf_hdr {		/* constant-structure header block */
+		xfs_dir_ino_t parent;	/* parent dir inode number */
+		__uint8_t count;	/* count of active entries */
+	} hdr;
+	struct xfs_dir_sf_entry {
+		xfs_dir_ino_t inumber;	/* referenced inode number */
+		__uint8_t namelen;	/* actual length of name (no NULL) */
+		__uint8_t name[1];	/* name */
+	} list[1];			/* variable sized array */
+} xfs_dir_shortform_t;
+typedef struct xfs_dir_sf_hdr xfs_dir_sf_hdr_t;
+typedef struct xfs_dir_sf_entry xfs_dir_sf_entry_t;
+
+/*
+ * We generate this then sort it, so that readdirs are returned in
+ * hash-order.  Else seekdir won't work.
+ */
+typedef struct xfs_dir_sf_sort {
+	__uint8_t	entno;		/* .=0, ..=1, else entry# + 2 */
+	__uint8_t	seqno;		/* sequence # with same hash value */
+	__uint8_t	namelen;	/* length of name value (no null) */
+	xfs_dahash_t	hash;		/* this entry's hash value */
+	xfs_intino_t	ino;		/* this entry's inode number */
+	char		*name;		/* name value, pointer into buffer */
+} xfs_dir_sf_sort_t;
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR_SF_GET_DIRINO)
+void xfs_dir_sf_get_dirino_arch(xfs_dir_ino_t *from, xfs_ino_t *to, xfs_arch_t arch);
+void xfs_dir_sf_get_dirino(xfs_dir_ino_t *from, xfs_ino_t *to);
+#define	XFS_DIR_SF_GET_DIRINO_ARCH(from,to,arch)    xfs_dir_sf_get_dirino_arch(from, to, arch)
+#define	XFS_DIR_SF_GET_DIRINO(from,to)		    xfs_dir_sf_get_dirino(from, to)
+#else
+#define	XFS_DIR_SF_GET_DIRINO_ARCH(from,to,arch)    DIRINO_COPY_ARCH(from,to,arch)
+#define	XFS_DIR_SF_GET_DIRINO(from,to)	            DIRINO_COPY_ARCH(from,to,ARCH_NOCONVERT)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR_SF_PUT_DIRINO)
+void xfs_dir_sf_put_dirino_arch(xfs_ino_t *from, xfs_dir_ino_t *to, xfs_arch_t arch);
+void xfs_dir_sf_put_dirino(xfs_ino_t *from, xfs_dir_ino_t *to);
+#define	XFS_DIR_SF_PUT_DIRINO_ARCH(from,to,arch)    xfs_dir_sf_put_dirino_arch(from, to, arch)
+#define	XFS_DIR_SF_PUT_DIRINO(from,to)		    xfs_dir_sf_put_dirino(from, to)
+#else
+#define	XFS_DIR_SF_PUT_DIRINO_ARCH(from,to,arch)    DIRINO_COPY_ARCH(from,to,arch)
+#define	XFS_DIR_SF_PUT_DIRINO(from,to)	            DIRINO_COPY_ARCH(from,to,ARCH_NOCONVERT)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR_SF_ENTSIZE_BYNAME)
+int xfs_dir_sf_entsize_byname(int len);
+#define XFS_DIR_SF_ENTSIZE_BYNAME(len)		xfs_dir_sf_entsize_byname(len)
+#else
+#define XFS_DIR_SF_ENTSIZE_BYNAME(len)		/* space a name uses */ \
+	((uint)sizeof(xfs_dir_sf_entry_t)-1 + (len))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR_SF_ENTSIZE_BYENTRY)
+int xfs_dir_sf_entsize_byentry(xfs_dir_sf_entry_t *sfep);
+#define XFS_DIR_SF_ENTSIZE_BYENTRY(sfep)	xfs_dir_sf_entsize_byentry(sfep)
+#else
+#define XFS_DIR_SF_ENTSIZE_BYENTRY(sfep)	/* space an entry uses */ \
+	((uint)sizeof(xfs_dir_sf_entry_t)-1 + (sfep)->namelen)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR_SF_NEXTENTRY)
+xfs_dir_sf_entry_t *xfs_dir_sf_nextentry(xfs_dir_sf_entry_t *sfep);
+#define XFS_DIR_SF_NEXTENTRY(sfep)		xfs_dir_sf_nextentry(sfep)
+#else
+#define XFS_DIR_SF_NEXTENTRY(sfep)		/* next entry in struct */ \
+	((xfs_dir_sf_entry_t *) \
+		((char *)(sfep) + XFS_DIR_SF_ENTSIZE_BYENTRY(sfep)))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR_SF_ALLFIT)
+int xfs_dir_sf_allfit(int count, int totallen);
+#define XFS_DIR_SF_ALLFIT(count,totallen)	\
+	xfs_dir_sf_allfit(count,totallen)
+#else
+#define XFS_DIR_SF_ALLFIT(count,totallen)	/* will all entries fit? */ \
+	((uint)sizeof(xfs_dir_sf_hdr_t) + \
+	       ((uint)sizeof(xfs_dir_sf_entry_t)-1)*(count) + (totallen))
+#endif
+
+#if defined(XFS_DIR_TRACE)
+
+/*
+ * Kernel tracing support for directories.
+ */
+struct uio;
+struct xfs_inode;
+struct xfs_da_intnode;
+struct xfs_dinode;
+struct xfs_dir_leafblock;
+struct xfs_dir_leaf_entry;
+
+#define	XFS_DIR_TRACE_SIZE	4096	/* size of global trace buffer */
+extern ktrace_t	*xfs_dir_trace_buf;
+
+/*
+ * Trace record types.
+ */
+#define	XFS_DIR_KTRACE_G_DU	1	/* dp, uio */
+#define	XFS_DIR_KTRACE_G_DUB	2	/* dp, uio, bno */
+#define	XFS_DIR_KTRACE_G_DUN	3	/* dp, uio, node */
+#define	XFS_DIR_KTRACE_G_DUL	4	/* dp, uio, leaf */
+#define	XFS_DIR_KTRACE_G_DUE	5	/* dp, uio, leaf entry */
+#define	XFS_DIR_KTRACE_G_DUC	6	/* dp, uio, cookie */
+
+void xfs_dir_trace_g_du(char *where, struct xfs_inode *dp, struct uio *uio);
+void xfs_dir_trace_g_dub(char *where, struct xfs_inode *dp, struct uio *uio,
+			      xfs_dablk_t bno);
+void xfs_dir_trace_g_dun(char *where, struct xfs_inode *dp, struct uio *uio,
+			      struct xfs_da_intnode *node);
+void xfs_dir_trace_g_dul(char *where, struct xfs_inode *dp, struct uio *uio,
+			      struct xfs_dir_leafblock *leaf);
+void xfs_dir_trace_g_due(char *where, struct xfs_inode *dp, struct uio *uio,
+			      struct xfs_dir_leaf_entry *entry);
+void xfs_dir_trace_g_duc(char *where, struct xfs_inode *dp, struct uio *uio,
+			      xfs_off_t cookie);
+void xfs_dir_trace_enter(int type, char *where,
+			     void *a0, void *a1, void *a2, void *a3,
+			     void *a4, void *a5, void *a6, void *a7,
+			     void *a8, void *a9, void *a10, void *a11);
+#else
+#define	xfs_dir_trace_g_du(w,d,u)
+#define	xfs_dir_trace_g_dub(w,d,u,b)
+#define	xfs_dir_trace_g_dun(w,d,u,n)
+#define	xfs_dir_trace_g_dul(w,d,u,l)
+#define	xfs_dir_trace_g_due(w,d,u,e)
+#define	xfs_dir_trace_g_duc(w,d,u,c)
+#endif /* DEBUG */
+
+#endif	/* __XFS_DIR_SF_H__ */
diff --git a/fs/xfs/xfs_dmapi.h b/fs/xfs/xfs_dmapi.h
new file mode 100644
index 00000000000000..55ae3e67d2450b
--- /dev/null
+++ b/fs/xfs/xfs_dmapi.h
@@ -0,0 +1,212 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_DMAPI_H__
+#define __XFS_DMAPI_H__
+
+/*	Values used to define the on-disk version of dm_attrname_t. All
+ *	on-disk attribute names start with the 8-byte string "SGI_DMI_".
+ *
+ *      In the on-disk inode, DMAPI attribute names consist of the user-provided
+ *      name with the DMATTR_PREFIXSTRING pre-pended.  This string must NEVER be
+ *      changed.
+ */
+
+#define DMATTR_PREFIXLEN	8
+#define DMATTR_PREFIXSTRING	"SGI_DMI_"
+
+typedef enum {
+	DM_EVENT_INVALID	= -1,
+	DM_EVENT_CANCEL		= 0,		/* not supported */
+	DM_EVENT_MOUNT		= 1,
+	DM_EVENT_PREUNMOUNT	= 2,
+	DM_EVENT_UNMOUNT	= 3,
+	DM_EVENT_DEBUT		= 4,		/* not supported */
+	DM_EVENT_CREATE		= 5,
+	DM_EVENT_CLOSE		= 6,		/* not supported */
+	DM_EVENT_POSTCREATE	= 7,
+	DM_EVENT_REMOVE		= 8,
+	DM_EVENT_POSTREMOVE	= 9,
+	DM_EVENT_RENAME		= 10,
+	DM_EVENT_POSTRENAME	= 11,
+	DM_EVENT_LINK		= 12,
+	DM_EVENT_POSTLINK	= 13,
+	DM_EVENT_SYMLINK	= 14,
+	DM_EVENT_POSTSYMLINK	= 15,
+	DM_EVENT_READ		= 16,
+	DM_EVENT_WRITE		= 17,
+	DM_EVENT_TRUNCATE	= 18,
+	DM_EVENT_ATTRIBUTE	= 19,
+	DM_EVENT_DESTROY	= 20,
+	DM_EVENT_NOSPACE	= 21,
+	DM_EVENT_USER		= 22,
+	DM_EVENT_MAX		= 23
+} dm_eventtype_t;
+#define HAVE_DM_EVENTTYPE_T
+
+typedef enum {
+	DM_RIGHT_NULL,
+	DM_RIGHT_SHARED,
+	DM_RIGHT_EXCL
+} dm_right_t;
+#define HAVE_DM_RIGHT_T
+
+/* Defines for determining if an event message should be sent. */
+#define	DM_EVENT_ENABLED(vfsp, ip, event) ( \
+	unlikely ((vfsp)->vfs_flag & VFS_DMI) && \
+		( ((ip)->i_d.di_dmevmask & (1 << event)) || \
+		  ((ip)->i_mount->m_dmevmask & (1 << event)) ) \
+	)
+
+#define	DM_EVENT_ENABLED_IO(vfsp, io, event) ( \
+	unlikely ((vfsp)->vfs_flag & VFS_DMI) && \
+		( ((io)->io_dmevmask & (1 << event)) || \
+		  ((io)->io_mount->m_dmevmask & (1 << event)) ) \
+	)
+
+#define DM_XFS_VALID_FS_EVENTS		( \
+	(1 << DM_EVENT_PREUNMOUNT)	| \
+	(1 << DM_EVENT_UNMOUNT)		| \
+	(1 << DM_EVENT_NOSPACE)		| \
+	(1 << DM_EVENT_DEBUT)		| \
+	(1 << DM_EVENT_CREATE)		| \
+	(1 << DM_EVENT_POSTCREATE)	| \
+	(1 << DM_EVENT_REMOVE)		| \
+	(1 << DM_EVENT_POSTREMOVE)	| \
+	(1 << DM_EVENT_RENAME)		| \
+	(1 << DM_EVENT_POSTRENAME)	| \
+	(1 << DM_EVENT_LINK)		| \
+	(1 << DM_EVENT_POSTLINK)	| \
+	(1 << DM_EVENT_SYMLINK)		| \
+	(1 << DM_EVENT_POSTSYMLINK)	| \
+	(1 << DM_EVENT_ATTRIBUTE)	| \
+	(1 << DM_EVENT_DESTROY)		)
+
+/* Events valid in dm_set_eventlist() when called with a file handle for
+   a regular file or a symlink.  These events are persistent.
+*/
+
+#define	DM_XFS_VALID_FILE_EVENTS	( \
+	(1 << DM_EVENT_ATTRIBUTE)	| \
+	(1 << DM_EVENT_DESTROY)		)
+
+/* Events valid in dm_set_eventlist() when called with a file handle for
+   a directory.  These events are persistent.
+*/
+
+#define	DM_XFS_VALID_DIRECTORY_EVENTS	( \
+	(1 << DM_EVENT_CREATE)		| \
+	(1 << DM_EVENT_POSTCREATE)	| \
+	(1 << DM_EVENT_REMOVE)		| \
+	(1 << DM_EVENT_POSTREMOVE)	| \
+	(1 << DM_EVENT_RENAME)		| \
+	(1 << DM_EVENT_POSTRENAME)	| \
+	(1 << DM_EVENT_LINK)		| \
+	(1 << DM_EVENT_POSTLINK)	| \
+	(1 << DM_EVENT_SYMLINK)		| \
+	(1 << DM_EVENT_POSTSYMLINK)	| \
+	(1 << DM_EVENT_ATTRIBUTE)	| \
+	(1 << DM_EVENT_DESTROY)		)
+
+/* Events supported by the XFS filesystem. */
+#define	DM_XFS_SUPPORTED_EVENTS		( \
+	(1 << DM_EVENT_MOUNT)		| \
+	(1 << DM_EVENT_PREUNMOUNT)	| \
+	(1 << DM_EVENT_UNMOUNT)		| \
+	(1 << DM_EVENT_NOSPACE)		| \
+	(1 << DM_EVENT_CREATE)		| \
+	(1 << DM_EVENT_POSTCREATE)	| \
+	(1 << DM_EVENT_REMOVE)		| \
+	(1 << DM_EVENT_POSTREMOVE)	| \
+	(1 << DM_EVENT_RENAME)		| \
+	(1 << DM_EVENT_POSTRENAME)	| \
+	(1 << DM_EVENT_LINK)		| \
+	(1 << DM_EVENT_POSTLINK)	| \
+	(1 << DM_EVENT_SYMLINK)		| \
+	(1 << DM_EVENT_POSTSYMLINK)	| \
+	(1 << DM_EVENT_READ)		| \
+	(1 << DM_EVENT_WRITE)		| \
+	(1 << DM_EVENT_TRUNCATE)	| \
+	(1 << DM_EVENT_ATTRIBUTE)	| \
+	(1 << DM_EVENT_DESTROY)		)
+
+
+/*
+ *	Definitions used for the flags field on dm_send_*_event().
+ */
+
+#define DM_FLAGS_NDELAY		0x001	/* return EAGAIN after dm_pending() */
+#define DM_FLAGS_UNWANTED	0x002	/* event not in fsys dm_eventset_t */
+#define DM_FLAGS_ISEM		0x004	/* thread holds i_sem */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,4,21)
+/* i_alloc_sem was added in 2.4.22-pre1 */
+#define DM_FLAGS_IALLOCSEM_RD	0x010	/* thread holds i_alloc_sem rd */
+#define DM_FLAGS_IALLOCSEM_WR	0x020	/* thread holds i_alloc_sem wr */
+#endif
+#endif
+
+/*
+ *	Based on IO_ISDIRECT, decide which i_ flag is set.
+ */
+#ifdef DM_FLAGS_IALLOCSEM_RD
+#define DM_SEM_FLAG_RD(ioflags) (((ioflags) & IO_ISDIRECT) ? \
+			      DM_FLAGS_IALLOCSEM_RD : DM_FLAGS_ISEM)
+#define DM_SEM_FLAG_WR	(DM_FLAGS_IALLOCSEM_WR | DM_FLAGS_ISEM)
+#else
+#define DM_SEM_FLAG_RD(ioflags) (((ioflags) & IO_ISDIRECT) ? \
+			      0 : DM_FLAGS_ISEM)
+#define DM_SEM_FLAG_WR	(DM_FLAGS_ISEM)
+#endif
+
+/*
+ *	Macros to turn caller specified delay/block flags into
+ *	dm_send_xxxx_event flag DM_FLAGS_NDELAY.
+ */
+
+#define FILP_DELAY_FLAG(filp) ((filp->f_flags&(O_NDELAY|O_NONBLOCK)) ? \
+			DM_FLAGS_NDELAY : 0)
+#define AT_DELAY_FLAG(f) ((f&ATTR_NONBLOCK) ? DM_FLAGS_NDELAY : 0)
+
+
+extern struct bhv_vfsops xfs_dmops;
+
+#ifdef CONFIG_XFS_DMAPI
+void xfs_dm_init(struct file_system_type *);
+void xfs_dm_exit(struct file_system_type *);
+#define XFS_DM_INIT(fstype)	xfs_dm_init(fstype)
+#define XFS_DM_EXIT(fstype)	xfs_dm_exit(fstype)
+#else
+#define XFS_DM_INIT(fstype)
+#define XFS_DM_EXIT(fstype)
+#endif
+
+#endif  /* __XFS_DMAPI_H__ */
diff --git a/fs/xfs/xfs_dmops.c b/fs/xfs/xfs_dmops.c
new file mode 100644
index 00000000000000..cec54ba800eb64
--- /dev/null
+++ b/fs/xfs/xfs_dmops.c
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.	 Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#include "xfs.h"
+
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+
+xfs_dmops_t	xfs_dmcore_stub = {
+	.xfs_send_data		= (xfs_send_data_t)fs_nosys,
+	.xfs_send_mmap		= (xfs_send_mmap_t)fs_noerr,
+	.xfs_send_destroy	= (xfs_send_destroy_t)fs_nosys,
+	.xfs_send_namesp	= (xfs_send_namesp_t)fs_nosys,
+	.xfs_send_unmount	= (xfs_send_unmount_t)fs_noval,
+};
diff --git a/fs/xfs/xfs_error.c b/fs/xfs/xfs_error.c
new file mode 100644
index 00000000000000..bbe1dea11c0879
--- /dev/null
+++ b/fs/xfs/xfs_error.c
@@ -0,0 +1,327 @@
+/*
+ * Copyright (c) 2000-2001 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_sb.h"
+#include "xfs_trans.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_utils.h"
+#include "xfs_error.h"
+
+#ifdef DEBUG
+
+int	xfs_etrap[XFS_ERROR_NTRAP] = {
+	0,
+};
+
+int
+xfs_error_trap(int e)
+{
+	int i;
+
+	if (!e)
+		return 0;
+	for (i = 0; i < XFS_ERROR_NTRAP; i++) {
+		if (xfs_etrap[i] == 0)
+			break;
+		if (e != xfs_etrap[i])
+			continue;
+		cmn_err(CE_NOTE, "xfs_error_trap: error %d", e);
+		debug_stop_all_cpus((void *)-1LL);
+		BUG();
+		break;
+	}
+	return e;
+}
+#endif
+
+#if (defined(DEBUG) || defined(INDUCE_IO_ERROR))
+
+int	xfs_etest[XFS_NUM_INJECT_ERROR];
+int64_t	xfs_etest_fsid[XFS_NUM_INJECT_ERROR];
+char *	xfs_etest_fsname[XFS_NUM_INJECT_ERROR];
+
+void
+xfs_error_test_init(void)
+{
+	memset(xfs_etest, 0, sizeof(xfs_etest));
+	memset(xfs_etest_fsid, 0, sizeof(xfs_etest_fsid));
+	memset(xfs_etest_fsname, 0, sizeof(xfs_etest_fsname));
+}
+
+int
+xfs_error_test(int error_tag, int *fsidp, char *expression,
+	       int line, char *file, unsigned long randfactor)
+{
+	int i;
+	int64_t fsid;
+
+	if (random() % randfactor)
+		return 0;
+
+	memcpy(&fsid, fsidp, sizeof(xfs_fsid_t));
+
+	for (i = 0; i < XFS_NUM_INJECT_ERROR; i++)  {
+		if (xfs_etest[i] == error_tag && xfs_etest_fsid[i] == fsid) {
+			cmn_err(CE_WARN,
+	"Injecting error (%s) at file %s, line %d, on filesystem \"%s\"",
+				expression, file, line, xfs_etest_fsname[i]);
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+int
+xfs_errortag_add(int error_tag, xfs_mount_t *mp)
+{
+	int i;
+	int len;
+	int64_t fsid;
+
+	memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t));
+
+	for (i = 0; i < XFS_NUM_INJECT_ERROR; i++)  {
+		if (xfs_etest_fsid[i] == fsid && xfs_etest[i] == error_tag) {
+			cmn_err(CE_WARN, "XFS error tag #%d on", error_tag);
+			return 0;
+		}
+	}
+
+	for (i = 0; i < XFS_NUM_INJECT_ERROR; i++)  {
+		if (xfs_etest[i] == 0) {
+			cmn_err(CE_WARN, "Turned on XFS error tag #%d",
+				error_tag);
+			xfs_etest[i] = error_tag;
+			xfs_etest_fsid[i] = fsid;
+			len = strlen(mp->m_fsname);
+			xfs_etest_fsname[i] = kmem_alloc(len + 1, KM_SLEEP);
+			strcpy(xfs_etest_fsname[i], mp->m_fsname);
+			return 0;
+		}
+	}
+
+	cmn_err(CE_WARN, "error tag overflow, too many turned on");
+
+	return 1;
+}
+
+int
+xfs_errortag_clear(int error_tag, xfs_mount_t *mp)
+{
+	int i;
+	int64_t fsid;
+
+	memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t));
+
+	for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) {
+		if (xfs_etest_fsid[i] == fsid && xfs_etest[i] == error_tag) {
+			xfs_etest[i] = 0;
+			xfs_etest_fsid[i] = 0LL;
+			kmem_free(xfs_etest_fsname[i],
+				  strlen(xfs_etest_fsname[i]) + 1);
+			xfs_etest_fsname[i] = NULL;
+			cmn_err(CE_WARN, "Cleared XFS error tag #%d",
+				error_tag);
+			return 0;
+		}
+	}
+
+	cmn_err(CE_WARN, "XFS error tag %d not on", error_tag);
+
+	return 1;
+}
+
+int
+xfs_errortag_clearall_umount(int64_t fsid, char *fsname, int loud)
+{
+	int i;
+	int cleared = 0;
+
+	for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) {
+		if ((fsid == 0LL || xfs_etest_fsid[i] == fsid) &&
+		     xfs_etest[i] != 0) {
+			cleared = 1;
+			cmn_err(CE_WARN, "Clearing XFS error tag #%d",
+				xfs_etest[i]);
+			xfs_etest[i] = 0;
+			xfs_etest_fsid[i] = 0LL;
+			kmem_free(xfs_etest_fsname[i],
+				  strlen(xfs_etest_fsname[i]) + 1);
+			xfs_etest_fsname[i] = NULL;
+		}
+	}
+
+	if (loud || cleared)
+		cmn_err(CE_WARN,
+			"Cleared all XFS error tags for filesystem \"%s\"",
+			fsname);
+
+	return 0;
+}
+
+int
+xfs_errortag_clearall(xfs_mount_t *mp)
+{
+	int64_t fsid;
+
+	memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t));
+
+	return xfs_errortag_clearall_umount(fsid, mp->m_fsname, 1);
+}
+#endif /* DEBUG || INDUCE_IO_ERROR */
+
+static void
+xfs_fs_vcmn_err(int level, xfs_mount_t *mp, char *fmt, va_list ap)
+{
+	if (mp != NULL) {
+		char	*newfmt;
+		int	len = 16 + mp->m_fsname_len + strlen(fmt);
+
+		newfmt = kmem_alloc(len, KM_SLEEP);
+		sprintf(newfmt, "Filesystem \"%s\": %s", mp->m_fsname, fmt);
+		icmn_err(level, newfmt, ap);
+		kmem_free(newfmt, len);
+	} else {
+		icmn_err(level, fmt, ap);
+	}
+}
+
+void
+xfs_fs_cmn_err(int level, xfs_mount_t *mp, char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	xfs_fs_vcmn_err(level, mp, fmt, ap);
+	va_end(ap);
+}
+
+void
+xfs_cmn_err(int panic_tag, int level, xfs_mount_t *mp, char *fmt, ...)
+{
+	va_list ap;
+
+#ifdef DEBUG
+	xfs_panic_mask |= XFS_PTAG_SHUTDOWN_CORRUPT;
+#endif
+
+	if (xfs_panic_mask && (xfs_panic_mask & panic_tag)
+	    && (level & CE_ALERT)) {
+		level &= ~CE_ALERT;
+		level |= CE_PANIC;
+		cmn_err(CE_ALERT, "XFS: Transforming an alert into a BUG.");
+	}
+	va_start(ap, fmt);
+	xfs_fs_vcmn_err(level, mp, fmt, ap);
+	va_end(ap);
+}
+
+void
+xfs_error_report(
+	char		*tag,
+	int		level,
+	xfs_mount_t	*mp,
+	char		*fname,
+	int		linenum,
+	inst_t		*ra)
+{
+	if (level <= xfs_error_level) {
+		xfs_cmn_err(XFS_PTAG_ERROR_REPORT,
+			    CE_ALERT, mp,
+		"XFS internal error %s at line %d of file %s.  Caller 0x%p\n",
+			    tag, linenum, fname, ra);
+
+		xfs_stack_trace();
+	}
+}
+
+void
+xfs_hex_dump(void *p, int length)
+{
+	__uint8_t *uip = (__uint8_t*)p;
+	int	i;
+	char	sbuf[128], *s;
+
+	s = sbuf;
+	*s = '\0';
+	for (i=0; i<length; i++, uip++) {
+		if ((i % 16) == 0) {
+			if (*s != '\0')
+				cmn_err(CE_ALERT, "%s\n", sbuf);
+			s = sbuf;
+			sprintf(s, "0x%x: ", i);
+			while( *s != '\0')
+				s++;
+		}
+		sprintf(s, "%02x ", *uip);
+
+		/*
+		 * the kernel sprintf is a void; user sprintf returns
+		 * the sprintf'ed string's length.  Find the new end-
+		 * of-string
+		 */
+		while( *s != '\0')
+			s++;
+	}
+	cmn_err(CE_ALERT, "%s\n", sbuf);
+}
+
+void
+xfs_corruption_error(
+	char		*tag,
+	int		level,
+	xfs_mount_t	*mp,
+	void		*p,
+	char		*fname,
+	int		linenum,
+	inst_t		*ra)
+{
+	if (level <= xfs_error_level)
+		xfs_hex_dump(p, 16);
+	xfs_error_report(tag, level, mp, fname, linenum, ra);
+}
diff --git a/fs/xfs/xfs_error.h b/fs/xfs/xfs_error.h
new file mode 100644
index 00000000000000..6bc0535c0a65bf
--- /dev/null
+++ b/fs/xfs/xfs_error.h
@@ -0,0 +1,196 @@
+/*
+ * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef	__XFS_ERROR_H__
+#define	__XFS_ERROR_H__
+
+#define prdev(fmt,targ,args...) \
+	printk("XFS: device %s- " fmt "\n", XFS_BUFTARG_NAME(targ), ## args)
+
+#define XFS_ERECOVER	1	/* Failure to recover log */
+#define XFS_ELOGSTAT	2	/* Failure to stat log in user space */
+#define XFS_ENOLOGSPACE	3	/* Reservation too large */
+#define XFS_ENOTSUP	4	/* Operation not supported */
+#define	XFS_ENOLSN	5	/* Can't find the lsn you asked for */
+#define XFS_ENOTFOUND	6
+#define XFS_ENOTXFS	7	/* Not XFS filesystem */
+
+#ifdef DEBUG
+#define	XFS_ERROR_NTRAP	10
+extern int	xfs_etrap[XFS_ERROR_NTRAP];
+extern int	xfs_error_trap(int);
+#define	XFS_ERROR(e)	xfs_error_trap(e)
+#else
+#define	XFS_ERROR(e)	(e)
+#endif
+
+struct xfs_mount;
+
+extern void
+xfs_error_report(
+	char		*tag,
+	int		level,
+	struct xfs_mount *mp,
+	char		*fname,
+	int		linenum,
+	inst_t		*ra);
+
+extern void
+xfs_corruption_error(
+	char		*tag,
+	int		level,
+	struct xfs_mount *mp,
+	void		*p,
+	char		*fname,
+	int		linenum,
+	inst_t		*ra);
+
+extern void
+xfs_hex_dump(void *p, int length);
+
+#define	XFS_ERROR_REPORT(e, lvl, mp)	\
+	xfs_error_report(e, lvl, mp, __FILE__, __LINE__, __return_address)
+#define	XFS_CORRUPTION_ERROR(e, lvl, mp, mem)	\
+	xfs_corruption_error(e, lvl, mp, mem, \
+			     __FILE__, __LINE__, __return_address)
+
+#define XFS_ERRLEVEL_OFF	0
+#define XFS_ERRLEVEL_LOW	1
+#define XFS_ERRLEVEL_HIGH	5
+
+/*
+ * error injection tags - the labels can be anything you want
+ * but each tag should have its own unique number
+ */
+
+#define XFS_ERRTAG_NOERROR				0
+#define XFS_ERRTAG_IFLUSH_1				1
+#define XFS_ERRTAG_IFLUSH_2				2
+#define XFS_ERRTAG_IFLUSH_3				3
+#define XFS_ERRTAG_IFLUSH_4				4
+#define XFS_ERRTAG_IFLUSH_5				5
+#define XFS_ERRTAG_IFLUSH_6				6
+#define	XFS_ERRTAG_DA_READ_BUF				7
+#define	XFS_ERRTAG_BTREE_CHECK_LBLOCK			8
+#define	XFS_ERRTAG_BTREE_CHECK_SBLOCK			9
+#define	XFS_ERRTAG_ALLOC_READ_AGF			10
+#define	XFS_ERRTAG_IALLOC_READ_AGI			11
+#define	XFS_ERRTAG_ITOBP_INOTOBP			12
+#define	XFS_ERRTAG_IUNLINK				13
+#define	XFS_ERRTAG_IUNLINK_REMOVE			14
+#define	XFS_ERRTAG_DIR_INO_VALIDATE			15
+#define XFS_ERRTAG_BULKSTAT_READ_CHUNK			16
+#define XFS_ERRTAG_IODONE_IOERR				17
+#define XFS_ERRTAG_STRATREAD_IOERR			18
+#define XFS_ERRTAG_STRATCMPL_IOERR			19
+#define XFS_ERRTAG_DIOWRITE_IOERR			20
+#define XFS_ERRTAG_BMAPIFORMAT				21
+#define XFS_ERRTAG_MAX					22
+
+/*
+ * Random factors for above tags, 1 means always, 2 means 1/2 time, etc.
+ */
+#define XFS_RANDOM_DEFAULT				100
+#define XFS_RANDOM_IFLUSH_1				XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_IFLUSH_2				XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_IFLUSH_3				XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_IFLUSH_4				XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_IFLUSH_5				XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_IFLUSH_6				XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_DA_READ_BUF				XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_BTREE_CHECK_LBLOCK			(XFS_RANDOM_DEFAULT/4)
+#define XFS_RANDOM_BTREE_CHECK_SBLOCK			XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_ALLOC_READ_AGF			XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_IALLOC_READ_AGI			XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_ITOBP_INOTOBP			XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_IUNLINK				XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_IUNLINK_REMOVE			XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_DIR_INO_VALIDATE			XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_BULKSTAT_READ_CHUNK			XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_IODONE_IOERR				(XFS_RANDOM_DEFAULT/10)
+#define XFS_RANDOM_STRATREAD_IOERR			(XFS_RANDOM_DEFAULT/10)
+#define XFS_RANDOM_STRATCMPL_IOERR			(XFS_RANDOM_DEFAULT/10)
+#define XFS_RANDOM_DIOWRITE_IOERR			(XFS_RANDOM_DEFAULT/10)
+#define	XFS_RANDOM_BMAPIFORMAT				XFS_RANDOM_DEFAULT
+
+#if (defined(DEBUG) || defined(INDUCE_IO_ERROR))
+extern int	xfs_error_test(int, int *, char *, int, char *, unsigned long);
+void xfs_error_test_init(void);
+
+#define	XFS_NUM_INJECT_ERROR				10
+
+#ifdef __ANSI_CPP__
+#define XFS_TEST_ERROR(expr, mp, tag, rf)		\
+	((expr) || \
+	 xfs_error_test((tag), (mp)->m_fixedfsid, #expr, __LINE__, __FILE__, \
+			 (rf)))
+#else
+#define XFS_TEST_ERROR(expr, mp, tag, rf)		\
+	((expr) || \
+	 xfs_error_test((tag), (mp)->m_fixedfsid, "expr", __LINE__, __FILE__, \
+			(rf)))
+#endif /* __ANSI_CPP__ */
+
+int		xfs_errortag_add(int error_tag, xfs_mount_t *mp);
+int		xfs_errortag_clear(int error_tag, xfs_mount_t *mp);
+
+int		xfs_errortag_clearall(xfs_mount_t *mp);
+int		xfs_errortag_clearall_umount(int64_t fsid, char *fsname,
+						int loud);
+#else
+#define XFS_TEST_ERROR(expr, mp, tag, rf)	(expr)
+#define xfs_errortag_add(tag, mp)		(ENOSYS)
+#define xfs_errortag_clearall(mp)		(ENOSYS)
+#endif /* (DEBUG || INDUCE_IO_ERROR) */
+
+/*
+ * XFS panic tags -- allow a call to xfs_cmn_err() be turned into
+ *			a panic by setting xfs_panic_mask in a
+ *			sysctl.  update xfs_max[XFS_PARAM] if
+ *			more are added.
+ */
+#define		XFS_NO_PTAG			0
+#define		XFS_PTAG_IFLUSH			0x00000001
+#define		XFS_PTAG_LOGRES			0x00000002
+#define		XFS_PTAG_AILDELETE		0x00000004
+#define		XFS_PTAG_ERROR_REPORT		0x00000008
+#define		XFS_PTAG_SHUTDOWN_CORRUPT	0x00000010
+#define		XFS_PTAG_SHUTDOWN_IOERROR	0x00000020
+#define		XFS_PTAG_SHUTDOWN_LOGERROR	0x00000040
+
+struct xfs_mount;
+/* PRINTFLIKE4 */
+void		xfs_cmn_err(int panic_tag, int level, struct xfs_mount *mp,
+			    char *fmt, ...);
+/* PRINTFLIKE3 */
+void		xfs_fs_cmn_err(int level, struct xfs_mount *mp, char *fmt, ...);
+
+#endif	/* __XFS_ERROR_H__ */
diff --git a/fs/xfs/xfs_extfree_item.c b/fs/xfs/xfs_extfree_item.c
new file mode 100644
index 00000000000000..5eafd5b6321183
--- /dev/null
+++ b/fs/xfs/xfs_extfree_item.c
@@ -0,0 +1,668 @@
+/*
+ * Copyright (c) 2000-2001 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+/*
+ * This file contains the implementation of the xfs_efi_log_item
+ * and xfs_efd_log_item items.
+ */
+
+#include "xfs.h"
+
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_buf_item.h"
+#include "xfs_sb.h"
+#include "xfs_dir.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_trans_priv.h"
+#include "xfs_extfree_item.h"
+
+
+kmem_zone_t	*xfs_efi_zone;
+kmem_zone_t	*xfs_efd_zone;
+
+STATIC void	xfs_efi_item_unlock(xfs_efi_log_item_t *);
+STATIC void	xfs_efi_item_abort(xfs_efi_log_item_t *);
+STATIC void	xfs_efd_item_abort(xfs_efd_log_item_t *);
+
+
+
+/*
+ * This returns the number of iovecs needed to log the given efi item.
+ * We only need 1 iovec for an efi item.  It just logs the efi_log_format
+ * structure.
+ */
+/*ARGSUSED*/
+STATIC uint
+xfs_efi_item_size(xfs_efi_log_item_t *efip)
+{
+	return 1;
+}
+
+/*
+ * This is called to fill in the vector of log iovecs for the
+ * given efi log item. We use only 1 iovec, and we point that
+ * at the efi_log_format structure embedded in the efi item.
+ * It is at this point that we assert that all of the extent
+ * slots in the efi item have been filled.
+ */
+STATIC void
+xfs_efi_item_format(xfs_efi_log_item_t	*efip,
+		    xfs_log_iovec_t	*log_vector)
+{
+	uint	size;
+
+	ASSERT(efip->efi_next_extent == efip->efi_format.efi_nextents);
+
+	efip->efi_format.efi_type = XFS_LI_EFI;
+
+	size = sizeof(xfs_efi_log_format_t);
+	size += (efip->efi_format.efi_nextents - 1) * sizeof(xfs_extent_t);
+	efip->efi_format.efi_size = 1;
+
+	log_vector->i_addr = (xfs_caddr_t)&(efip->efi_format);
+	log_vector->i_len = size;
+	ASSERT(size >= sizeof(xfs_efi_log_format_t));
+}
+
+
+/*
+ * Pinning has no meaning for an efi item, so just return.
+ */
+/*ARGSUSED*/
+STATIC void
+xfs_efi_item_pin(xfs_efi_log_item_t *efip)
+{
+	return;
+}
+
+
+/*
+ * While EFIs cannot really be pinned, the unpin operation is the
+ * last place at which the EFI is manipulated during a transaction.
+ * Here we coordinate with xfs_efi_cancel() to determine who gets to
+ * free the EFI.
+ */
+/*ARGSUSED*/
+STATIC void
+xfs_efi_item_unpin(xfs_efi_log_item_t *efip, int stale)
+{
+	int		nexts;
+	int		size;
+	xfs_mount_t	*mp;
+	SPLDECL(s);
+
+	mp = efip->efi_item.li_mountp;
+	AIL_LOCK(mp, s);
+	if (efip->efi_flags & XFS_EFI_CANCELED) {
+		/*
+		 * xfs_trans_delete_ail() drops the AIL lock.
+		 */
+		xfs_trans_delete_ail(mp, (xfs_log_item_t *)efip, s);
+
+		nexts = efip->efi_format.efi_nextents;
+		if (nexts > XFS_EFI_MAX_FAST_EXTENTS) {
+			size = sizeof(xfs_efi_log_item_t);
+			size += (nexts - 1) * sizeof(xfs_extent_t);
+			kmem_free(efip, size);
+		} else {
+			kmem_zone_free(xfs_efi_zone, efip);
+		}
+	} else {
+		efip->efi_flags |= XFS_EFI_COMMITTED;
+		AIL_UNLOCK(mp, s);
+	}
+
+	return;
+}
+
+/*
+ * like unpin only we have to also clear the xaction descriptor
+ * pointing the log item if we free the item.  This routine duplicates
+ * unpin because efi_flags is protected by the AIL lock.  Freeing
+ * the descriptor and then calling unpin would force us to drop the AIL
+ * lock which would open up a race condition.
+ */
+STATIC void
+xfs_efi_item_unpin_remove(xfs_efi_log_item_t *efip, xfs_trans_t *tp)
+{
+	int		nexts;
+	int		size;
+	xfs_mount_t	*mp;
+	xfs_log_item_desc_t	*lidp;
+	SPLDECL(s);
+
+	mp = efip->efi_item.li_mountp;
+	AIL_LOCK(mp, s);
+	if (efip->efi_flags & XFS_EFI_CANCELED) {
+		/*
+		 * free the xaction descriptor pointing to this item
+		 */
+		lidp = xfs_trans_find_item(tp, (xfs_log_item_t *) efip);
+		xfs_trans_free_item(tp, lidp);
+		/*
+		 * pull the item off the AIL.
+		 * xfs_trans_delete_ail() drops the AIL lock.
+		 */
+		xfs_trans_delete_ail(mp, (xfs_log_item_t *)efip, s);
+		/*
+		 * now free the item itself
+		 */
+		nexts = efip->efi_format.efi_nextents;
+		if (nexts > XFS_EFI_MAX_FAST_EXTENTS) {
+			size = sizeof(xfs_efi_log_item_t);
+			size += (nexts - 1) * sizeof(xfs_extent_t);
+			kmem_free(efip, size);
+		} else {
+			kmem_zone_free(xfs_efi_zone, efip);
+		}
+	} else {
+		efip->efi_flags |= XFS_EFI_COMMITTED;
+		AIL_UNLOCK(mp, s);
+	}
+
+	return;
+}
+
+/*
+ * Efi items have no locking or pushing.  However, since EFIs are
+ * pulled from the AIL when their corresponding EFDs are committed
+ * to disk, their situation is very similar to being pinned.  Return
+ * XFS_ITEM_PINNED so that the caller will eventually flush the log.
+ * This should help in getting the EFI out of the AIL.
+ */
+/*ARGSUSED*/
+STATIC uint
+xfs_efi_item_trylock(xfs_efi_log_item_t *efip)
+{
+	return XFS_ITEM_PINNED;
+}
+
+/*
+ * Efi items have no locking, so just return.
+ */
+/*ARGSUSED*/
+STATIC void
+xfs_efi_item_unlock(xfs_efi_log_item_t *efip)
+{
+	if (efip->efi_item.li_flags & XFS_LI_ABORTED)
+		xfs_efi_item_abort(efip);
+	return;
+}
+
+/*
+ * The EFI is logged only once and cannot be moved in the log, so
+ * simply return the lsn at which it's been logged.  The canceled
+ * flag is not paid any attention here.  Checking for that is delayed
+ * until the EFI is unpinned.
+ */
+/*ARGSUSED*/
+STATIC xfs_lsn_t
+xfs_efi_item_committed(xfs_efi_log_item_t *efip, xfs_lsn_t lsn)
+{
+	return lsn;
+}
+
+/*
+ * This is called when the transaction logging the EFI is aborted.
+ * Free up the EFI and return.  No need to clean up the slot for
+ * the item in the transaction.  That was done by the unpin code
+ * which is called prior to this routine in the abort/fs-shutdown path.
+ */
+STATIC void
+xfs_efi_item_abort(xfs_efi_log_item_t *efip)
+{
+	int	nexts;
+	int	size;
+
+	nexts = efip->efi_format.efi_nextents;
+	if (nexts > XFS_EFI_MAX_FAST_EXTENTS) {
+		size = sizeof(xfs_efi_log_item_t);
+		size += (nexts - 1) * sizeof(xfs_extent_t);
+		kmem_free(efip, size);
+	} else {
+		kmem_zone_free(xfs_efi_zone, efip);
+	}
+	return;
+}
+
+/*
+ * There isn't much you can do to push on an efi item.  It is simply
+ * stuck waiting for all of its corresponding efd items to be
+ * committed to disk.
+ */
+/*ARGSUSED*/
+STATIC void
+xfs_efi_item_push(xfs_efi_log_item_t *efip)
+{
+	return;
+}
+
+/*
+ * The EFI dependency tracking op doesn't do squat.  It can't because
+ * it doesn't know where the free extent is coming from.  The dependency
+ * tracking has to be handled by the "enclosing" metadata object.  For
+ * example, for inodes, the inode is locked throughout the extent freeing
+ * so the dependency should be recorded there.
+ */
+/*ARGSUSED*/
+STATIC void
+xfs_efi_item_committing(xfs_efi_log_item_t *efip, xfs_lsn_t lsn)
+{
+	return;
+}
+
+/*
+ * This is the ops vector shared by all efi log items.
+ */
+struct xfs_item_ops xfs_efi_item_ops = {
+	.iop_size	= (uint(*)(xfs_log_item_t*))xfs_efi_item_size,
+	.iop_format	= (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
+					xfs_efi_item_format,
+	.iop_pin	= (void(*)(xfs_log_item_t*))xfs_efi_item_pin,
+	.iop_unpin	= (void(*)(xfs_log_item_t*, int))xfs_efi_item_unpin,
+	.iop_unpin_remove = (void(*)(xfs_log_item_t*, xfs_trans_t *))
+					xfs_efi_item_unpin_remove,
+	.iop_trylock	= (uint(*)(xfs_log_item_t*))xfs_efi_item_trylock,
+	.iop_unlock	= (void(*)(xfs_log_item_t*))xfs_efi_item_unlock,
+	.iop_committed	= (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
+					xfs_efi_item_committed,
+	.iop_push	= (void(*)(xfs_log_item_t*))xfs_efi_item_push,
+	.iop_abort	= (void(*)(xfs_log_item_t*))xfs_efi_item_abort,
+	.iop_pushbuf	= NULL,
+	.iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
+					xfs_efi_item_committing
+};
+
+
+/*
+ * Allocate and initialize an efi item with the given number of extents.
+ */
+xfs_efi_log_item_t *
+xfs_efi_init(xfs_mount_t	*mp,
+	     uint		nextents)
+
+{
+	xfs_efi_log_item_t	*efip;
+	uint			size;
+
+	ASSERT(nextents > 0);
+	if (nextents > XFS_EFI_MAX_FAST_EXTENTS) {
+		size = (uint)(sizeof(xfs_efi_log_item_t) +
+			((nextents - 1) * sizeof(xfs_extent_t)));
+		efip = (xfs_efi_log_item_t*)kmem_zalloc(size, KM_SLEEP);
+	} else {
+		efip = (xfs_efi_log_item_t*)kmem_zone_zalloc(xfs_efi_zone,
+							     KM_SLEEP);
+	}
+
+	efip->efi_item.li_type = XFS_LI_EFI;
+	efip->efi_item.li_ops = &xfs_efi_item_ops;
+	efip->efi_item.li_mountp = mp;
+	efip->efi_format.efi_nextents = nextents;
+	efip->efi_format.efi_id = (__psint_t)(void*)efip;
+
+	return (efip);
+}
+
+/*
+ * This is called by the efd item code below to release references to
+ * the given efi item.  Each efd calls this with the number of
+ * extents that it has logged, and when the sum of these reaches
+ * the total number of extents logged by this efi item we can free
+ * the efi item.
+ *
+ * Freeing the efi item requires that we remove it from the AIL.
+ * We'll use the AIL lock to protect our counters as well as
+ * the removal from the AIL.
+ */
+void
+xfs_efi_release(xfs_efi_log_item_t	*efip,
+		uint			nextents)
+{
+	xfs_mount_t	*mp;
+	int		extents_left;
+	uint		size;
+	int		nexts;
+	SPLDECL(s);
+
+	mp = efip->efi_item.li_mountp;
+	ASSERT(efip->efi_next_extent > 0);
+	ASSERT(efip->efi_flags & XFS_EFI_COMMITTED);
+
+	AIL_LOCK(mp, s);
+	ASSERT(efip->efi_next_extent >= nextents);
+	efip->efi_next_extent -= nextents;
+	extents_left = efip->efi_next_extent;
+	if (extents_left == 0) {
+		/*
+		 * xfs_trans_delete_ail() drops the AIL lock.
+		 */
+		xfs_trans_delete_ail(mp, (xfs_log_item_t *)efip, s);
+	} else {
+		AIL_UNLOCK(mp, s);
+	}
+
+	if (extents_left == 0) {
+		nexts = efip->efi_format.efi_nextents;
+		if (nexts > XFS_EFI_MAX_FAST_EXTENTS) {
+			size = sizeof(xfs_efi_log_item_t);
+			size += (nexts - 1) * sizeof(xfs_extent_t);
+			kmem_free(efip, size);
+		} else {
+			kmem_zone_free(xfs_efi_zone, efip);
+		}
+	}
+}
+
+/*
+ * This is called when the transaction that should be committing the
+ * EFD corresponding to the given EFI is aborted.  The committed and
+ * canceled flags are used to coordinate the freeing of the EFI and
+ * the references by the transaction that committed it.
+ */
+STATIC void
+xfs_efi_cancel(
+	xfs_efi_log_item_t	*efip)
+{
+	int		nexts;
+	int		size;
+	xfs_mount_t	*mp;
+	SPLDECL(s);
+
+	mp = efip->efi_item.li_mountp;
+	AIL_LOCK(mp, s);
+	if (efip->efi_flags & XFS_EFI_COMMITTED) {
+		/*
+		 * xfs_trans_delete_ail() drops the AIL lock.
+		 */
+		xfs_trans_delete_ail(mp, (xfs_log_item_t *)efip, s);
+
+		nexts = efip->efi_format.efi_nextents;
+		if (nexts > XFS_EFI_MAX_FAST_EXTENTS) {
+			size = sizeof(xfs_efi_log_item_t);
+			size += (nexts - 1) * sizeof(xfs_extent_t);
+			kmem_free(efip, size);
+		} else {
+			kmem_zone_free(xfs_efi_zone, efip);
+		}
+	} else {
+		efip->efi_flags |= XFS_EFI_CANCELED;
+		AIL_UNLOCK(mp, s);
+	}
+
+	return;
+}
+
+
+
+
+
+/*
+ * This returns the number of iovecs needed to log the given efd item.
+ * We only need 1 iovec for an efd item.  It just logs the efd_log_format
+ * structure.
+ */
+/*ARGSUSED*/
+STATIC uint
+xfs_efd_item_size(xfs_efd_log_item_t *efdp)
+{
+	return 1;
+}
+
+/*
+ * This is called to fill in the vector of log iovecs for the
+ * given efd log item. We use only 1 iovec, and we point that
+ * at the efd_log_format structure embedded in the efd item.
+ * It is at this point that we assert that all of the extent
+ * slots in the efd item have been filled.
+ */
+STATIC void
+xfs_efd_item_format(xfs_efd_log_item_t	*efdp,
+		    xfs_log_iovec_t	*log_vector)
+{
+	uint	size;
+
+	ASSERT(efdp->efd_next_extent == efdp->efd_format.efd_nextents);
+
+	efdp->efd_format.efd_type = XFS_LI_EFD;
+
+	size = sizeof(xfs_efd_log_format_t);
+	size += (efdp->efd_format.efd_nextents - 1) * sizeof(xfs_extent_t);
+	efdp->efd_format.efd_size = 1;
+
+	log_vector->i_addr = (xfs_caddr_t)&(efdp->efd_format);
+	log_vector->i_len = size;
+	ASSERT(size >= sizeof(xfs_efd_log_format_t));
+}
+
+
+/*
+ * Pinning has no meaning for an efd item, so just return.
+ */
+/*ARGSUSED*/
+STATIC void
+xfs_efd_item_pin(xfs_efd_log_item_t *efdp)
+{
+	return;
+}
+
+
+/*
+ * Since pinning has no meaning for an efd item, unpinning does
+ * not either.
+ */
+/*ARGSUSED*/
+STATIC void
+xfs_efd_item_unpin(xfs_efd_log_item_t *efdp, int stale)
+{
+	return;
+}
+
+/*ARGSUSED*/
+STATIC void
+xfs_efd_item_unpin_remove(xfs_efd_log_item_t *efdp, xfs_trans_t *tp)
+{
+	return;
+}
+
+/*
+ * Efd items have no locking, so just return success.
+ */
+/*ARGSUSED*/
+STATIC uint
+xfs_efd_item_trylock(xfs_efd_log_item_t *efdp)
+{
+	return XFS_ITEM_LOCKED;
+}
+
+/*
+ * Efd items have no locking or pushing, so return failure
+ * so that the caller doesn't bother with us.
+ */
+/*ARGSUSED*/
+STATIC void
+xfs_efd_item_unlock(xfs_efd_log_item_t *efdp)
+{
+	if (efdp->efd_item.li_flags & XFS_LI_ABORTED)
+		xfs_efd_item_abort(efdp);
+	return;
+}
+
+/*
+ * When the efd item is committed to disk, all we need to do
+ * is delete our reference to our partner efi item and then
+ * free ourselves.  Since we're freeing ourselves we must
+ * return -1 to keep the transaction code from further referencing
+ * this item.
+ */
+/*ARGSUSED*/
+STATIC xfs_lsn_t
+xfs_efd_item_committed(xfs_efd_log_item_t *efdp, xfs_lsn_t lsn)
+{
+	uint	size;
+	int	nexts;
+
+	/*
+	 * If we got a log I/O error, it's always the case that the LR with the
+	 * EFI got unpinned and freed before the EFD got aborted.
+	 */
+	if ((efdp->efd_item.li_flags & XFS_LI_ABORTED) == 0)
+		xfs_efi_release(efdp->efd_efip, efdp->efd_format.efd_nextents);
+
+	nexts = efdp->efd_format.efd_nextents;
+	if (nexts > XFS_EFD_MAX_FAST_EXTENTS) {
+		size = sizeof(xfs_efd_log_item_t);
+		size += (nexts - 1) * sizeof(xfs_extent_t);
+		kmem_free(efdp, size);
+	} else {
+		kmem_zone_free(xfs_efd_zone, efdp);
+	}
+
+	return (xfs_lsn_t)-1;
+}
+
+/*
+ * The transaction of which this EFD is a part has been aborted.
+ * Inform its companion EFI of this fact and then clean up after
+ * ourselves.  No need to clean up the slot for the item in the
+ * transaction.  That was done by the unpin code which is called
+ * prior to this routine in the abort/fs-shutdown path.
+ */
+STATIC void
+xfs_efd_item_abort(xfs_efd_log_item_t *efdp)
+{
+	int	nexts;
+	int	size;
+
+	/*
+	 * If we got a log I/O error, it's always the case that the LR with the
+	 * EFI got unpinned and freed before the EFD got aborted. So don't
+	 * reference the EFI at all in that case.
+	 */
+	if ((efdp->efd_item.li_flags & XFS_LI_ABORTED) == 0)
+		xfs_efi_cancel(efdp->efd_efip);
+
+	nexts = efdp->efd_format.efd_nextents;
+	if (nexts > XFS_EFD_MAX_FAST_EXTENTS) {
+		size = sizeof(xfs_efd_log_item_t);
+		size += (nexts - 1) * sizeof(xfs_extent_t);
+		kmem_free(efdp, size);
+	} else {
+		kmem_zone_free(xfs_efd_zone, efdp);
+	}
+	return;
+}
+
+/*
+ * There isn't much you can do to push on an efd item.  It is simply
+ * stuck waiting for the log to be flushed to disk.
+ */
+/*ARGSUSED*/
+STATIC void
+xfs_efd_item_push(xfs_efd_log_item_t *efdp)
+{
+	return;
+}
+
+/*
+ * The EFD dependency tracking op doesn't do squat.  It can't because
+ * it doesn't know where the free extent is coming from.  The dependency
+ * tracking has to be handled by the "enclosing" metadata object.  For
+ * example, for inodes, the inode is locked throughout the extent freeing
+ * so the dependency should be recorded there.
+ */
+/*ARGSUSED*/
+STATIC void
+xfs_efd_item_committing(xfs_efd_log_item_t *efip, xfs_lsn_t lsn)
+{
+	return;
+}
+
+/*
+ * This is the ops vector shared by all efd log items.
+ */
+struct xfs_item_ops xfs_efd_item_ops = {
+	.iop_size	= (uint(*)(xfs_log_item_t*))xfs_efd_item_size,
+	.iop_format	= (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
+					xfs_efd_item_format,
+	.iop_pin	= (void(*)(xfs_log_item_t*))xfs_efd_item_pin,
+	.iop_unpin	= (void(*)(xfs_log_item_t*, int))xfs_efd_item_unpin,
+	.iop_unpin_remove = (void(*)(xfs_log_item_t*, xfs_trans_t*))
+					xfs_efd_item_unpin_remove,
+	.iop_trylock	= (uint(*)(xfs_log_item_t*))xfs_efd_item_trylock,
+	.iop_unlock	= (void(*)(xfs_log_item_t*))xfs_efd_item_unlock,
+	.iop_committed	= (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
+					xfs_efd_item_committed,
+	.iop_push	= (void(*)(xfs_log_item_t*))xfs_efd_item_push,
+	.iop_abort	= (void(*)(xfs_log_item_t*))xfs_efd_item_abort,
+	.iop_pushbuf	= NULL,
+	.iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
+					xfs_efd_item_committing
+};
+
+
+/*
+ * Allocate and initialize an efd item with the given number of extents.
+ */
+xfs_efd_log_item_t *
+xfs_efd_init(xfs_mount_t	*mp,
+	     xfs_efi_log_item_t	*efip,
+	     uint		nextents)
+
+{
+	xfs_efd_log_item_t	*efdp;
+	uint			size;
+
+	ASSERT(nextents > 0);
+	if (nextents > XFS_EFD_MAX_FAST_EXTENTS) {
+		size = (uint)(sizeof(xfs_efd_log_item_t) +
+			((nextents - 1) * sizeof(xfs_extent_t)));
+		efdp = (xfs_efd_log_item_t*)kmem_zalloc(size, KM_SLEEP);
+	} else {
+		efdp = (xfs_efd_log_item_t*)kmem_zone_zalloc(xfs_efd_zone,
+							     KM_SLEEP);
+	}
+
+	efdp->efd_item.li_type = XFS_LI_EFD;
+	efdp->efd_item.li_ops = &xfs_efd_item_ops;
+	efdp->efd_item.li_mountp = mp;
+	efdp->efd_efip = efip;
+	efdp->efd_format.efd_nextents = nextents;
+	efdp->efd_format.efd_efi_id = efip->efi_format.efi_id;
+
+	return (efdp);
+}
diff --git a/fs/xfs/xfs_extfree_item.h b/fs/xfs/xfs_extfree_item.h
new file mode 100644
index 00000000000000..7122d6101d1580
--- /dev/null
+++ b/fs/xfs/xfs_extfree_item.h
@@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef	__XFS_EXTFREE_ITEM_H__
+#define	__XFS_EXTFREE_ITEM_H__
+
+struct xfs_mount;
+struct kmem_zone;
+
+typedef struct xfs_extent {
+	xfs_dfsbno_t	ext_start;
+	xfs_extlen_t	ext_len;
+} xfs_extent_t;
+
+/*
+ * This is the structure used to lay out an efi log item in the
+ * log.  The efi_extents field is a variable size array whose
+ * size is given by efi_nextents.
+ */
+typedef struct xfs_efi_log_format {
+	unsigned short		efi_type;	/* efi log item type */
+	unsigned short		efi_size;	/* size of this item */
+	uint			efi_nextents;	/* # extents to free */
+	__uint64_t		efi_id;		/* efi identifier */
+	xfs_extent_t		efi_extents[1];	/* array of extents to free */
+} xfs_efi_log_format_t;
+
+/*
+ * This is the structure used to lay out an efd log item in the
+ * log.  The efd_extents array is a variable size array whose
+ * size is given by efd_nextents;
+ */
+typedef struct xfs_efd_log_format {
+	unsigned short		efd_type;	/* efd log item type */
+	unsigned short		efd_size;	/* size of this item */
+	uint			efd_nextents;	/* # of extents freed */
+	__uint64_t		efd_efi_id;	/* id of corresponding efi */
+	xfs_extent_t		efd_extents[1];	/* array of extents freed */
+} xfs_efd_log_format_t;
+
+
+#ifdef __KERNEL__
+
+/*
+ * Max number of extents in fast allocation path.
+ */
+#define	XFS_EFI_MAX_FAST_EXTENTS	16
+
+/*
+ * Define EFI flags.
+ */
+#define	XFS_EFI_RECOVERED	0x1
+#define	XFS_EFI_COMMITTED	0x2
+#define	XFS_EFI_CANCELED	0x4
+
+/*
+ * This is the "extent free intention" log item.  It is used
+ * to log the fact that some extents need to be free.  It is
+ * used in conjunction with the "extent free done" log item
+ * described below.
+ */
+typedef struct xfs_efi_log_item {
+	xfs_log_item_t		efi_item;
+	uint			efi_flags;	/* misc flags */
+	uint			efi_next_extent;
+	xfs_efi_log_format_t	efi_format;
+} xfs_efi_log_item_t;
+
+/*
+ * This is the "extent free done" log item.  It is used to log
+ * the fact that some extents earlier mentioned in an efi item
+ * have been freed.
+ */
+typedef struct xfs_efd_log_item {
+	xfs_log_item_t		efd_item;
+	xfs_efi_log_item_t	*efd_efip;
+	uint			efd_next_extent;
+	xfs_efd_log_format_t	efd_format;
+} xfs_efd_log_item_t;
+
+/*
+ * Max number of extents in fast allocation path.
+ */
+#define	XFS_EFD_MAX_FAST_EXTENTS	16
+
+extern struct kmem_zone	*xfs_efi_zone;
+extern struct kmem_zone	*xfs_efd_zone;
+
+xfs_efi_log_item_t	*xfs_efi_init(struct xfs_mount *, uint);
+xfs_efd_log_item_t	*xfs_efd_init(struct xfs_mount *, xfs_efi_log_item_t *,
+				      uint);
+
+#endif	/* __KERNEL__ */
+
+#endif	/* __XFS_EXTFREE_ITEM_H__ */
diff --git a/fs/xfs/xfs_fs.h b/fs/xfs/xfs_fs.h
new file mode 100644
index 00000000000000..6ee8443bf9d33d
--- /dev/null
+++ b/fs/xfs/xfs_fs.h
@@ -0,0 +1,527 @@
+/*
+ * Copyright (c) 1995-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2.1 of the GNU Lesser General Public License
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.	 Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307,
+ * USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_FS_H__
+#define __XFS_FS_H__
+
+/*
+ * SGI's XFS filesystem's major stuff (constants, structures)
+ */
+
+#define XFS_NAME	"xfs"
+
+/*
+ * Direct I/O attribute record used with XFS_IOC_DIOINFO
+ * d_miniosz is the min xfer size, xfer size multiple and file seek offset
+ * alignment.
+ */
+#ifndef HAVE_DIOATTR
+struct dioattr {
+	__u32		d_mem;		/* data buffer memory alignment */
+	__u32		d_miniosz;	/* min xfer size		*/
+	__u32		d_maxiosz;	/* max xfer size		*/
+};
+#endif
+
+/*
+ * Structure for XFS_IOC_FSGETXATTR[A] and XFS_IOC_FSSETXATTR.
+ */
+#ifndef HAVE_FSXATTR
+struct fsxattr {
+	__u32		fsx_xflags;	/* xflags field value (get/set) */
+	__u32		fsx_extsize;	/* extsize field value (get/set)*/
+	__u32		fsx_nextents;	/* nextents field value (get)	*/
+	unsigned char	fsx_pad[16];
+};
+#endif
+
+/*
+ * Flags for the bs_xflags/fsx_xflags field
+ * There should be a one-to-one correspondence between these flags and the
+ * XFS_DIFLAG_s.
+ */
+#define XFS_XFLAG_REALTIME	0x00000001	/* data in realtime volume */
+#define XFS_XFLAG_PREALLOC	0x00000002	/* preallocated file extents */
+#define XFS_XFLAG_IMMUTABLE	0x00000008	/* file cannot be modified */
+#define XFS_XFLAG_APPEND	0x00000010	/* all writes append */
+#define XFS_XFLAG_SYNC		0x00000020	/* all writes synchronous */
+#define XFS_XFLAG_NOATIME	0x00000040	/* do not update access time */
+#define XFS_XFLAG_NODUMP	0x00000080	/* do not include in backups */
+#define XFS_XFLAG_RTINHERIT	0x00000100	/* create with rt bit set */
+#define XFS_XFLAG_PROJINHERIT	0x00000200	/* create with parents projid */
+#define XFS_XFLAG_NOSYMLINKS	0x00000400	/* disallow symlink creation */
+#define XFS_XFLAG_HASATTR	0x80000000	/* no DIFLAG for this	*/
+
+/*
+ * Structure for XFS_IOC_GETBMAP.
+ * On input, fill in bmv_offset and bmv_length of the first structure
+ * to indicate the area of interest in the file, and bmv_entry with the
+ * number of array elements given.  The first structure is updated on
+ * return to give the offset and length for the next call.
+ */
+#ifndef HAVE_GETBMAP
+struct getbmap {
+	__s64		bmv_offset;	/* file offset of segment in blocks */
+	__s64		bmv_block;	/* starting block (64-bit daddr_t)  */
+	__s64		bmv_length;	/* length of segment, blocks	    */
+	__s32		bmv_count;	/* # of entries in array incl. 1st  */
+	__s32		bmv_entries;	/* # of entries filled in (output)  */
+};
+#endif
+
+/*
+ *	Structure for XFS_IOC_GETBMAPX.	 Fields bmv_offset through bmv_entries
+ *	are used exactly as in the getbmap structure.  The getbmapx structure
+ *	has additional bmv_iflags and bmv_oflags fields. The bmv_iflags field
+ *	is only used for the first structure.  It contains input flags
+ *	specifying XFS_IOC_GETBMAPX actions.  The bmv_oflags field is filled
+ *	in by the XFS_IOC_GETBMAPX command for each returned structure after
+ *	the first.
+ */
+#ifndef HAVE_GETBMAPX
+struct getbmapx {
+	__s64		bmv_offset;	/* file offset of segment in blocks */
+	__s64		bmv_block;	/* starting block (64-bit daddr_t)  */
+	__s64		bmv_length;	/* length of segment, blocks	    */
+	__s32		bmv_count;	/* # of entries in array incl. 1st  */
+	__s32		bmv_entries;	/* # of entries filled in (output). */
+	__s32		bmv_iflags;	/* input flags (1st structure)	    */
+	__s32		bmv_oflags;	/* output flags (after 1st structure)*/
+	__s32		bmv_unused1;	/* future use			    */
+	__s32		bmv_unused2;	/* future use			    */
+};
+#endif
+
+/*	bmv_iflags values - set by XFS_IOC_GETBMAPX caller.	*/
+#define BMV_IF_ATTRFORK		0x1	/* return attr fork rather than data */
+#define BMV_IF_NO_DMAPI_READ	0x2	/* Do not generate DMAPI read event  */
+#define BMV_IF_PREALLOC		0x4	/* rtn status BMV_OF_PREALLOC if req */
+#define BMV_IF_VALID	(BMV_IF_ATTRFORK|BMV_IF_NO_DMAPI_READ|BMV_IF_PREALLOC)
+#ifdef __KERNEL__
+#define BMV_IF_EXTENDED 0x40000000	/* getpmapx if set */
+#endif
+
+/*	bmv_oflags values - returned for for each non-header segment */
+#define BMV_OF_PREALLOC		0x1	/* segment = unwritten pre-allocation */
+
+/*	Convert getbmap <-> getbmapx - move fields from p1 to p2. */
+#define GETBMAP_CONVERT(p1,p2) {	\
+	p2.bmv_offset = p1.bmv_offset;	\
+	p2.bmv_block = p1.bmv_block;	\
+	p2.bmv_length = p1.bmv_length;	\
+	p2.bmv_count = p1.bmv_count;	\
+	p2.bmv_entries = p1.bmv_entries;  }
+
+
+/*
+ * Structure for XFS_IOC_FSSETDM.
+ * For use by backup and restore programs to set the XFS on-disk inode
+ * fields di_dmevmask and di_dmstate.  These must be set to exactly and
+ * only values previously obtained via xfs_bulkstat!  (Specifically the
+ * xfs_bstat_t fields bs_dmevmask and bs_dmstate.)
+ */
+#ifndef HAVE_FSDMIDATA
+struct fsdmidata {
+	__u32		fsd_dmevmask;	/* corresponds to di_dmevmask */
+	__u16		fsd_padding;
+	__u16		fsd_dmstate;	/* corresponds to di_dmstate  */
+};
+#endif
+
+/*
+ * File segment locking set data type for 64 bit access.
+ * Also used for all the RESV/FREE interfaces.
+ */
+typedef struct xfs_flock64 {
+	__s16		l_type;
+	__s16		l_whence;
+	__s64		l_start;
+	__s64		l_len;		/* len == 0 means until end of file */
+	__s32		l_sysid;
+	__u32		l_pid;
+	__s32		l_pad[4];	/* reserve area			    */
+} xfs_flock64_t;
+
+/*
+ * Output for XFS_IOC_FSGEOMETRY_V1
+ */
+typedef struct xfs_fsop_geom_v1 {
+	__u32		blocksize;	/* filesystem (data) block size */
+	__u32		rtextsize;	/* realtime extent size		*/
+	__u32		agblocks;	/* fsblocks in an AG		*/
+	__u32		agcount;	/* number of allocation groups	*/
+	__u32		logblocks;	/* fsblocks in the log		*/
+	__u32		sectsize;	/* (data) sector size, bytes	*/
+	__u32		inodesize;	/* inode size in bytes		*/
+	__u32		imaxpct;	/* max allowed inode space(%)	*/
+	__u64		datablocks;	/* fsblocks in data subvolume	*/
+	__u64		rtblocks;	/* fsblocks in realtime subvol	*/
+	__u64		rtextents;	/* rt extents in realtime subvol*/
+	__u64		logstart;	/* starting fsblock of the log	*/
+	unsigned char	uuid[16];	/* unique id of the filesystem	*/
+	__u32		sunit;		/* stripe unit, fsblocks	*/
+	__u32		swidth;		/* stripe width, fsblocks	*/
+	__s32		version;	/* structure version		*/
+	__u32		flags;		/* superblock version flags	*/
+	__u32		logsectsize;	/* log sector size, bytes	*/
+	__u32		rtsectsize;	/* realtime sector size, bytes	*/
+	__u32		dirblocksize;	/* directory block size, bytes	*/
+} xfs_fsop_geom_v1_t;
+
+/*
+ * Output for XFS_IOC_FSGEOMETRY
+ */
+typedef struct xfs_fsop_geom {
+	__u32		blocksize;	/* filesystem (data) block size */
+	__u32		rtextsize;	/* realtime extent size		*/
+	__u32		agblocks;	/* fsblocks in an AG		*/
+	__u32		agcount;	/* number of allocation groups	*/
+	__u32		logblocks;	/* fsblocks in the log		*/
+	__u32		sectsize;	/* (data) sector size, bytes	*/
+	__u32		inodesize;	/* inode size in bytes		*/
+	__u32		imaxpct;	/* max allowed inode space(%)	*/
+	__u64		datablocks;	/* fsblocks in data subvolume	*/
+	__u64		rtblocks;	/* fsblocks in realtime subvol	*/
+	__u64		rtextents;	/* rt extents in realtime subvol*/
+	__u64		logstart;	/* starting fsblock of the log	*/
+	unsigned char	uuid[16];	/* unique id of the filesystem	*/
+	__u32		sunit;		/* stripe unit, fsblocks	*/
+	__u32		swidth;		/* stripe width, fsblocks	*/
+	__s32		version;	/* structure version		*/
+	__u32		flags;		/* superblock version flags	*/
+	__u32		logsectsize;	/* log sector size, bytes	*/
+	__u32		rtsectsize;	/* realtime sector size, bytes	*/
+	__u32		dirblocksize;	/* directory block size, bytes	*/
+	__u32		logsunit;	/* log stripe unit, bytes */
+} xfs_fsop_geom_t;
+
+/* Output for XFS_FS_COUNTS */
+typedef struct xfs_fsop_counts {
+	__u64	freedata;	/* free data section blocks */
+	__u64	freertx;	/* free rt extents */
+	__u64	freeino;	/* free inodes */
+	__u64	allocino;	/* total allocated inodes */
+} xfs_fsop_counts_t;
+
+/* Input/Output for XFS_GET_RESBLKS and XFS_SET_RESBLKS */
+typedef struct xfs_fsop_resblks {
+	__u64  resblks;
+	__u64  resblks_avail;
+} xfs_fsop_resblks_t;
+
+#define XFS_FSOP_GEOM_VERSION	0
+
+#define XFS_FSOP_GEOM_FLAGS_ATTR	0x0001	/* attributes in use	*/
+#define XFS_FSOP_GEOM_FLAGS_NLINK	0x0002	/* 32-bit nlink values	*/
+#define XFS_FSOP_GEOM_FLAGS_QUOTA	0x0004	/* quotas enabled	*/
+#define XFS_FSOP_GEOM_FLAGS_IALIGN	0x0008	/* inode alignment	*/
+#define XFS_FSOP_GEOM_FLAGS_DALIGN	0x0010	/* large data alignment */
+#define XFS_FSOP_GEOM_FLAGS_SHARED	0x0020	/* read-only shared	*/
+#define XFS_FSOP_GEOM_FLAGS_EXTFLG	0x0040	/* special extent flag	*/
+#define XFS_FSOP_GEOM_FLAGS_DIRV2	0x0080	/* directory version 2	*/
+#define XFS_FSOP_GEOM_FLAGS_LOGV2	0x0100	/* log format version 2	*/
+#define XFS_FSOP_GEOM_FLAGS_SECTOR	0x0200	/* sector sizes >1BB	*/
+
+
+/*
+ * Minimum and maximum sizes need for growth checks
+ */
+#define XFS_MIN_AG_BLOCKS	64
+#define XFS_MIN_LOG_BLOCKS	512
+#define XFS_MAX_LOG_BLOCKS	(64 * 1024)
+#define XFS_MIN_LOG_BYTES	(256 * 1024)
+#define XFS_MAX_LOG_BYTES	(128 * 1024 * 1024)
+
+/*
+ * Structures for XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG & XFS_IOC_FSGROWFSRT
+ */
+typedef struct xfs_growfs_data {
+	__u64		newblocks;	/* new data subvol size, fsblocks */
+	__u32		imaxpct;	/* new inode space percentage limit */
+} xfs_growfs_data_t;
+
+typedef struct xfs_growfs_log {
+	__u32		newblocks;	/* new log size, fsblocks */
+	__u32		isint;		/* 1 if new log is internal */
+} xfs_growfs_log_t;
+
+typedef struct xfs_growfs_rt {
+	__u64		newblocks;	/* new realtime size, fsblocks */
+	__u32		extsize;	/* new realtime extent size, fsblocks */
+} xfs_growfs_rt_t;
+
+
+/*
+ * Structures returned from ioctl XFS_IOC_FSBULKSTAT & XFS_IOC_FSBULKSTAT_SINGLE
+ */
+typedef struct xfs_bstime {
+	time_t		tv_sec;		/* seconds		*/
+	__s32		tv_nsec;	/* and nanoseconds	*/
+} xfs_bstime_t;
+
+typedef struct xfs_bstat {
+	__u64		bs_ino;		/* inode number			*/
+	__u16		bs_mode;	/* type and mode		*/
+	__u16		bs_nlink;	/* number of links		*/
+	__u32		bs_uid;		/* user id			*/
+	__u32		bs_gid;		/* group id			*/
+	__u32		bs_rdev;	/* device value			*/
+	__s32		bs_blksize;	/* block size			*/
+	__s64		bs_size;	/* file size			*/
+	xfs_bstime_t	bs_atime;	/* access time			*/
+	xfs_bstime_t	bs_mtime;	/* modify time			*/
+	xfs_bstime_t	bs_ctime;	/* inode change time		*/
+	int64_t		bs_blocks;	/* number of blocks		*/
+	__u32		bs_xflags;	/* extended flags		*/
+	__s32		bs_extsize;	/* extent size			*/
+	__s32		bs_extents;	/* number of extents		*/
+	__u32		bs_gen;		/* generation count		*/
+	__u16		bs_projid;	/* project id			*/
+	unsigned char	bs_pad[14];	/* pad space, unused		*/
+	__u32		bs_dmevmask;	/* DMIG event mask		*/
+	__u16		bs_dmstate;	/* DMIG state info		*/
+	__u16		bs_aextents;	/* attribute number of extents	*/
+} xfs_bstat_t;
+
+/*
+ * The user-level BulkStat Request interface structure.
+ */
+typedef struct xfs_fsop_bulkreq {
+	__u64		__user *lastip;	/* last inode # pointer		*/
+	__s32		icount;		/* count of entries in buffer	*/
+	void		__user *ubuffer;/* user buffer for inode desc.	*/
+	__s32		__user *ocount;	/* output count pointer		*/
+} xfs_fsop_bulkreq_t;
+
+
+/*
+ * Structures returned from xfs_inumbers routine (XFS_IOC_FSINUMBERS).
+ */
+typedef struct xfs_inogrp {
+	__u64		xi_startino;	/* starting inode number	*/
+	__s32		xi_alloccount;	/* # bits set in allocmask	*/
+	__u64		xi_allocmask;	/* mask of allocated inodes	*/
+} xfs_inogrp_t;
+
+
+/*
+ * Error injection.
+ */
+typedef struct xfs_error_injection {
+	__s32		fd;
+	__s32		errtag;
+} xfs_error_injection_t;
+
+
+/*
+ * The user-level Handle Request interface structure.
+ */
+typedef struct xfs_fsop_handlereq {
+	__u32		fd;		/* fd for FD_TO_HANDLE		*/
+	void		__user *path;	/* user pathname		*/
+	__u32		oflags;		/* open flags			*/
+	void		__user *ihandle;/* user supplied handle		*/
+	__u32		ihandlen;	/* user supplied length		*/
+	void		__user *ohandle;/* user buffer for handle	*/
+	__u32		__user *ohandlen;/* user buffer length		*/
+} xfs_fsop_handlereq_t;
+
+/*
+ * Compound structures for passing args through Handle Request interfaces
+ * xfs_fssetdm_by_handle, xfs_attrlist_by_handle, xfs_attrmulti_by_handle
+ * - ioctls: XFS_IOC_FSSETDM_BY_HANDLE, XFS_IOC_ATTRLIST_BY_HANDLE, and
+ *	     XFS_IOC_ATTRMULTI_BY_HANDLE
+ */
+
+typedef struct xfs_fsop_setdm_handlereq {
+	struct xfs_fsop_handlereq	hreq;	/* handle information	*/
+	struct fsdmidata		__user *data;	/* DMAPI data	*/
+} xfs_fsop_setdm_handlereq_t;
+
+typedef struct xfs_attrlist_cursor {
+	__u32		opaque[4];
+} xfs_attrlist_cursor_t;
+
+typedef struct xfs_fsop_attrlist_handlereq {
+	struct xfs_fsop_handlereq	hreq; /* handle interface structure */
+	struct xfs_attrlist_cursor	pos; /* opaque cookie, list offset */
+	__u32				flags;	/* which namespace to use */
+	__u32				buflen;	/* length of buffer supplied */
+	void				__user *buffer;	/* returned names */
+} xfs_fsop_attrlist_handlereq_t;
+
+typedef struct xfs_attr_multiop {
+	__u32		am_opcode;
+	__s32		am_error;
+	void		__user *am_attrname;
+	void		__user *am_attrvalue;
+	__u32		am_length;
+	__u32		am_flags;
+} xfs_attr_multiop_t;
+
+typedef struct xfs_fsop_attrmulti_handlereq {
+	struct xfs_fsop_handlereq	hreq; /* handle interface structure */
+	__u32				opcount;/* count of following multiop */
+	struct xfs_attr_multiop		__user *ops; /* attr_multi data */
+} xfs_fsop_attrmulti_handlereq_t;
+
+/*
+ * per machine unique filesystem identifier types.
+ */
+typedef struct { __u32 val[2]; } xfs_fsid_t; /* file system id type */
+
+
+#ifndef HAVE_FID
+#define MAXFIDSZ	46
+
+typedef struct fid {
+	__u16		fid_len;		/* length of data in bytes */
+	unsigned char	fid_data[MAXFIDSZ];	/* data (fid_len worth)  */
+} fid_t;
+#endif
+
+typedef struct xfs_fid {
+	__u16	xfs_fid_len;		/* length of remainder	*/
+	__u16	xfs_fid_pad;
+	__u32	xfs_fid_gen;		/* generation number	*/
+	__u64	xfs_fid_ino;		/* 64 bits inode number */
+} xfs_fid_t;
+
+typedef struct xfs_fid2 {
+	__u16	fid_len;	/* length of remainder */
+	__u16	fid_pad;	/* padding, must be zero */
+	__u32	fid_gen;	/* generation number */
+	__u64	fid_ino;	/* inode number */
+} xfs_fid2_t;
+
+typedef struct xfs_handle {
+	union {
+		__s64	    align;	/* force alignment of ha_fid	 */
+		xfs_fsid_t  _ha_fsid;	/* unique file system identifier */
+	} ha_u;
+	xfs_fid_t	ha_fid;		/* file system specific file ID	 */
+} xfs_handle_t;
+#define ha_fsid ha_u._ha_fsid
+
+#define XFS_HSIZE(handle)	(((char *) &(handle).ha_fid.xfs_fid_pad	 \
+				 - (char *) &(handle))			  \
+				 + (handle).ha_fid.xfs_fid_len)
+
+#define XFS_HANDLE_CMP(h1, h2)	memcmp(h1, h2, sizeof(xfs_handle_t))
+
+#define FSHSIZE		sizeof(fsid_t)
+
+/* 
+ * Flags for going down operation
+ */
+#define XFS_FSOP_GOING_FLAGS_DEFAULT		0x0	/* going down */
+#define XFS_FSOP_GOING_FLAGS_LOGFLUSH		0x1	/* flush log but not data */
+#define XFS_FSOP_GOING_FLAGS_NOLOGFLUSH		0x2	/* don't flush log nor data */
+
+/*
+ * ioctl commands that are used by Linux filesystems
+ */
+#define XFS_IOC_GETXFLAGS	_IOR('f', 1, long)
+#define XFS_IOC_SETXFLAGS	_IOW('f', 2, long)
+#define XFS_IOC_GETVERSION	_IOR('v', 1, long)
+
+/*
+ * ioctl commands that replace IRIX fcntl()'s
+ * For 'documentation' purposed more than anything else,
+ * the "cmd #" field reflects the IRIX fcntl number.
+ */
+#define XFS_IOC_ALLOCSP		_IOW ('X', 10, struct xfs_flock64)
+#define XFS_IOC_FREESP		_IOW ('X', 11, struct xfs_flock64)
+#define XFS_IOC_DIOINFO		_IOR ('X', 30, struct dioattr)
+#define XFS_IOC_FSGETXATTR	_IOR ('X', 31, struct fsxattr)
+#define XFS_IOC_FSSETXATTR	_IOW ('X', 32, struct fsxattr)
+#define XFS_IOC_ALLOCSP64	_IOW ('X', 36, struct xfs_flock64)
+#define XFS_IOC_FREESP64	_IOW ('X', 37, struct xfs_flock64)
+#define XFS_IOC_GETBMAP		_IOWR('X', 38, struct getbmap)
+#define XFS_IOC_FSSETDM		_IOW ('X', 39, struct fsdmidata)
+#define XFS_IOC_RESVSP		_IOW ('X', 40, struct xfs_flock64)
+#define XFS_IOC_UNRESVSP	_IOW ('X', 41, struct xfs_flock64)
+#define XFS_IOC_RESVSP64	_IOW ('X', 42, struct xfs_flock64)
+#define XFS_IOC_UNRESVSP64	_IOW ('X', 43, struct xfs_flock64)
+#define XFS_IOC_GETBMAPA	_IOWR('X', 44, struct getbmap)
+#define XFS_IOC_FSGETXATTRA	_IOR ('X', 45, struct fsxattr)
+/*	XFS_IOC_SETBIOSIZE ---- deprecated 46	   */
+/*	XFS_IOC_GETBIOSIZE ---- deprecated 47	   */
+#define XFS_IOC_GETBMAPX	_IOWR('X', 56, struct getbmap)
+
+/*
+ * ioctl commands that replace IRIX syssgi()'s
+ */
+#define XFS_IOC_FSGEOMETRY_V1	     _IOR ('X', 100, struct xfs_fsop_geom_v1)
+#define XFS_IOC_FSBULKSTAT	     _IOWR('X', 101, struct xfs_fsop_bulkreq)
+#define XFS_IOC_FSBULKSTAT_SINGLE    _IOWR('X', 102, struct xfs_fsop_bulkreq)
+#define XFS_IOC_FSINUMBERS	     _IOWR('X', 103, struct xfs_fsop_bulkreq)
+#define XFS_IOC_PATH_TO_FSHANDLE     _IOWR('X', 104, struct xfs_fsop_handlereq)
+#define XFS_IOC_PATH_TO_HANDLE	     _IOWR('X', 105, struct xfs_fsop_handlereq)
+#define XFS_IOC_FD_TO_HANDLE	     _IOWR('X', 106, struct xfs_fsop_handlereq)
+#define XFS_IOC_OPEN_BY_HANDLE	     _IOWR('X', 107, struct xfs_fsop_handlereq)
+#define XFS_IOC_READLINK_BY_HANDLE   _IOWR('X', 108, struct xfs_fsop_handlereq)
+#define XFS_IOC_SWAPEXT		     _IOWR('X', 109, struct xfs_swapext)
+#define XFS_IOC_FSGROWFSDATA	     _IOW ('X', 110, struct xfs_growfs_data)
+#define XFS_IOC_FSGROWFSLOG	     _IOW ('X', 111, struct xfs_growfs_log)
+#define XFS_IOC_FSGROWFSRT	     _IOW ('X', 112, struct xfs_growfs_rt)
+#define XFS_IOC_FSCOUNTS	     _IOR ('X', 113, struct xfs_fsop_counts)
+#define XFS_IOC_SET_RESBLKS	     _IOWR('X', 114, struct xfs_fsop_resblks)
+#define XFS_IOC_GET_RESBLKS	     _IOR ('X', 115, struct xfs_fsop_resblks)
+#define XFS_IOC_ERROR_INJECTION	     _IOW ('X', 116, struct xfs_error_injection)
+#define XFS_IOC_ERROR_CLEARALL	     _IOW ('X', 117, struct xfs_error_injection)
+/*	XFS_IOC_ATTRCTL_BY_HANDLE -- deprecated 118	 */
+#define XFS_IOC_FREEZE		     _IOWR('X', 119, int)
+#define XFS_IOC_THAW		     _IOWR('X', 120, int)
+#define XFS_IOC_FSSETDM_BY_HANDLE    _IOW ('X', 121, struct xfs_fsop_setdm_handlereq)
+#define XFS_IOC_ATTRLIST_BY_HANDLE   _IOW ('X', 122, struct xfs_fsop_attrlist_handlereq)
+#define XFS_IOC_ATTRMULTI_BY_HANDLE  _IOW ('X', 123, struct xfs_fsop_attrmulti_handlereq)
+#define XFS_IOC_FSGEOMETRY	     _IOR ('X', 124, struct xfs_fsop_geom)
+#define XFS_IOC_GOINGDOWN	     _IOR ('X', 125, __uint32_t)
+/*	XFS_IOC_GETFSUUID ---------- deprecated 140	 */
+
+
+#ifndef HAVE_BBMACROS
+/*
+ * Block I/O parameterization.	A basic block (BB) is the lowest size of
+ * filesystem allocation, and must equal 512.  Length units given to bio
+ * routines are in BB's.
+ */
+#define BBSHIFT		9
+#define BBSIZE		(1<<BBSHIFT)
+#define BBMASK		(BBSIZE-1)
+#define BTOBB(bytes)	(((__u64)(bytes) + BBSIZE - 1) >> BBSHIFT)
+#define BTOBBT(bytes)	((__u64)(bytes) >> BBSHIFT)
+#define BBTOB(bbs)	((bbs) << BBSHIFT)
+#endif
+
+#endif	/* __XFS_FS_H__ */
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
new file mode 100644
index 00000000000000..ebc2f27ce9e1b0
--- /dev/null
+++ b/fs/xfs/xfs_fsops.c
@@ -0,0 +1,616 @@
+/*
+ * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_dir.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_ag.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_error.h"
+#include "xfs_alloc.h"
+#include "xfs_ialloc.h"
+#include "xfs_fsops.h"
+#include "xfs_itable.h"
+#include "xfs_rw.h"
+#include "xfs_refcache.h"
+#include "xfs_trans_space.h"
+#include "xfs_rtalloc.h"
+#include "xfs_dir2.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_inode_item.h"
+
+/*
+ * File system operations
+ */
+
+int
+xfs_fs_geometry(
+	xfs_mount_t		*mp,
+	xfs_fsop_geom_t		*geo,
+	int			new_version)
+{
+	geo->blocksize = mp->m_sb.sb_blocksize;
+	geo->rtextsize = mp->m_sb.sb_rextsize;
+	geo->agblocks = mp->m_sb.sb_agblocks;
+	geo->agcount = mp->m_sb.sb_agcount;
+	geo->logblocks = mp->m_sb.sb_logblocks;
+	geo->sectsize = mp->m_sb.sb_sectsize;
+	geo->inodesize = mp->m_sb.sb_inodesize;
+	geo->imaxpct = mp->m_sb.sb_imax_pct;
+	geo->datablocks = mp->m_sb.sb_dblocks;
+	geo->rtblocks = mp->m_sb.sb_rblocks;
+	geo->rtextents = mp->m_sb.sb_rextents;
+	geo->logstart = mp->m_sb.sb_logstart;
+	ASSERT(sizeof(geo->uuid)==sizeof(mp->m_sb.sb_uuid));
+	memcpy(geo->uuid, &mp->m_sb.sb_uuid, sizeof(mp->m_sb.sb_uuid));
+	if (new_version >= 2) {
+		geo->sunit = mp->m_sb.sb_unit;
+		geo->swidth = mp->m_sb.sb_width;
+	}
+	if (new_version >= 3) {
+		geo->version = XFS_FSOP_GEOM_VERSION;
+		geo->flags =
+			(XFS_SB_VERSION_HASATTR(&mp->m_sb) ?
+				XFS_FSOP_GEOM_FLAGS_ATTR : 0) |
+			(XFS_SB_VERSION_HASNLINK(&mp->m_sb) ?
+				XFS_FSOP_GEOM_FLAGS_NLINK : 0) |
+			(XFS_SB_VERSION_HASQUOTA(&mp->m_sb) ?
+				XFS_FSOP_GEOM_FLAGS_QUOTA : 0) |
+			(XFS_SB_VERSION_HASALIGN(&mp->m_sb) ?
+				XFS_FSOP_GEOM_FLAGS_IALIGN : 0) |
+			(XFS_SB_VERSION_HASDALIGN(&mp->m_sb) ?
+				XFS_FSOP_GEOM_FLAGS_DALIGN : 0) |
+			(XFS_SB_VERSION_HASSHARED(&mp->m_sb) ?
+				XFS_FSOP_GEOM_FLAGS_SHARED : 0) |
+			(XFS_SB_VERSION_HASEXTFLGBIT(&mp->m_sb) ?
+				XFS_FSOP_GEOM_FLAGS_EXTFLG : 0) |
+			(XFS_SB_VERSION_HASDIRV2(&mp->m_sb) ?
+				XFS_FSOP_GEOM_FLAGS_DIRV2 : 0) |
+			(XFS_SB_VERSION_HASSECTOR(&mp->m_sb) ?
+				XFS_FSOP_GEOM_FLAGS_SECTOR : 0);
+		geo->logsectsize = XFS_SB_VERSION_HASSECTOR(&mp->m_sb) ?
+				mp->m_sb.sb_logsectsize : BBSIZE;
+		geo->rtsectsize = mp->m_sb.sb_blocksize;
+		geo->dirblocksize = mp->m_dirblksize;
+	}
+	if (new_version >= 4) {
+		geo->flags |=
+			(XFS_SB_VERSION_HASLOGV2(&mp->m_sb) ?
+				XFS_FSOP_GEOM_FLAGS_LOGV2 : 0);
+		geo->logsunit = mp->m_sb.sb_logsunit;
+	}
+	return 0;
+}
+
+static int
+xfs_growfs_data_private(
+	xfs_mount_t		*mp,		/* mount point for filesystem */
+	xfs_growfs_data_t	*in)		/* growfs data input struct */
+{
+	xfs_agf_t		*agf;
+	xfs_agi_t		*agi;
+	xfs_agnumber_t		agno;
+	xfs_extlen_t		agsize;
+	xfs_extlen_t		tmpsize;
+	xfs_alloc_rec_t		*arec;
+	xfs_btree_sblock_t	*block;
+	xfs_buf_t		*bp;
+	int			bucket;
+	int			dpct;
+	int			error;
+	xfs_agnumber_t		nagcount;
+	xfs_agnumber_t		nagimax = 0;
+	xfs_rfsblock_t		nb, nb_mod;
+	xfs_rfsblock_t		new;
+	xfs_rfsblock_t		nfree;
+	xfs_agnumber_t		oagcount;
+	int			pct;
+	xfs_sb_t		*sbp;
+	xfs_trans_t		*tp;
+
+	nb = in->newblocks;
+	pct = in->imaxpct;
+	if (nb < mp->m_sb.sb_dblocks || pct < 0 || pct > 100)
+		return XFS_ERROR(EINVAL);
+	dpct = pct - mp->m_sb.sb_imax_pct;
+	error = xfs_read_buf(mp, mp->m_ddev_targp,
+			XFS_FSB_TO_BB(mp, nb) - XFS_FSS_TO_BB(mp, 1),
+			XFS_FSS_TO_BB(mp, 1), 0, &bp);
+	if (error)
+		return error;
+	ASSERT(bp);
+	xfs_buf_relse(bp);
+
+	new = nb;	/* use new as a temporary here */
+	nb_mod = do_div(new, mp->m_sb.sb_agblocks);
+	nagcount = new + (nb_mod != 0);
+	if (nb_mod && nb_mod < XFS_MIN_AG_BLOCKS) {
+		nagcount--;
+		nb = nagcount * mp->m_sb.sb_agblocks;
+		if (nb < mp->m_sb.sb_dblocks)
+			return XFS_ERROR(EINVAL);
+	}
+	new = nb - mp->m_sb.sb_dblocks;
+	oagcount = mp->m_sb.sb_agcount;
+	if (nagcount > oagcount) {
+		down_write(&mp->m_peraglock);
+		mp->m_perag = kmem_realloc(mp->m_perag,
+			sizeof(xfs_perag_t) * nagcount,
+			sizeof(xfs_perag_t) * oagcount,
+			KM_SLEEP);
+		memset(&mp->m_perag[oagcount], 0,
+			(nagcount - oagcount) * sizeof(xfs_perag_t));
+		mp->m_flags |= XFS_MOUNT_32BITINODES;
+		nagimax = xfs_initialize_perag(mp, nagcount);
+		up_write(&mp->m_peraglock);
+	}
+	tp = xfs_trans_alloc(mp, XFS_TRANS_GROWFS);
+	if ((error = xfs_trans_reserve(tp, XFS_GROWFS_SPACE_RES(mp),
+			XFS_GROWDATA_LOG_RES(mp), 0, 0, 0))) {
+		xfs_trans_cancel(tp, 0);
+		return error;
+	}
+
+	nfree = 0;
+	for (agno = nagcount - 1; agno >= oagcount; agno--, new -= agsize) {
+		/*
+		 * AG freelist header block
+		 */
+		bp = xfs_buf_get(mp->m_ddev_targp,
+				  XFS_AG_DADDR(mp, agno, XFS_AGF_DADDR(mp)),
+				  XFS_FSS_TO_BB(mp, 1), 0);
+		agf = XFS_BUF_TO_AGF(bp);
+		memset(agf, 0, mp->m_sb.sb_sectsize);
+		INT_SET(agf->agf_magicnum, ARCH_CONVERT, XFS_AGF_MAGIC);
+		INT_SET(agf->agf_versionnum, ARCH_CONVERT, XFS_AGF_VERSION);
+		INT_SET(agf->agf_seqno, ARCH_CONVERT, agno);
+		if (agno == nagcount - 1)
+			agsize =
+				nb -
+				(agno * (xfs_rfsblock_t)mp->m_sb.sb_agblocks);
+		else
+			agsize = mp->m_sb.sb_agblocks;
+		INT_SET(agf->agf_length, ARCH_CONVERT, agsize);
+		INT_SET(agf->agf_roots[XFS_BTNUM_BNOi], ARCH_CONVERT,
+			XFS_BNO_BLOCK(mp));
+		INT_SET(agf->agf_roots[XFS_BTNUM_CNTi], ARCH_CONVERT,
+			XFS_CNT_BLOCK(mp));
+		INT_SET(agf->agf_levels[XFS_BTNUM_BNOi], ARCH_CONVERT, 1);
+		INT_SET(agf->agf_levels[XFS_BTNUM_CNTi], ARCH_CONVERT, 1);
+		INT_ZERO(agf->agf_flfirst, ARCH_CONVERT);
+		INT_SET(agf->agf_fllast, ARCH_CONVERT, XFS_AGFL_SIZE(mp) - 1);
+		INT_ZERO(agf->agf_flcount, ARCH_CONVERT);
+		tmpsize = agsize - XFS_PREALLOC_BLOCKS(mp);
+		INT_SET(agf->agf_freeblks, ARCH_CONVERT, tmpsize);
+		INT_SET(agf->agf_longest, ARCH_CONVERT, tmpsize);
+		error = xfs_bwrite(mp, bp);
+		if (error) {
+			goto error0;
+		}
+		/*
+		 * AG inode header block
+		 */
+		bp = xfs_buf_get(mp->m_ddev_targp,
+				  XFS_AG_DADDR(mp, agno, XFS_AGI_DADDR(mp)),
+				  XFS_FSS_TO_BB(mp, 1), 0);
+		agi = XFS_BUF_TO_AGI(bp);
+		memset(agi, 0, mp->m_sb.sb_sectsize);
+		INT_SET(agi->agi_magicnum, ARCH_CONVERT, XFS_AGI_MAGIC);
+		INT_SET(agi->agi_versionnum, ARCH_CONVERT, XFS_AGI_VERSION);
+		INT_SET(agi->agi_seqno, ARCH_CONVERT, agno);
+		INT_SET(agi->agi_length, ARCH_CONVERT, agsize);
+		INT_ZERO(agi->agi_count, ARCH_CONVERT);
+		INT_SET(agi->agi_root, ARCH_CONVERT, XFS_IBT_BLOCK(mp));
+		INT_SET(agi->agi_level, ARCH_CONVERT, 1);
+		INT_ZERO(agi->agi_freecount, ARCH_CONVERT);
+		INT_SET(agi->agi_newino, ARCH_CONVERT, NULLAGINO);
+		INT_SET(agi->agi_dirino, ARCH_CONVERT, NULLAGINO);
+		for (bucket = 0; bucket < XFS_AGI_UNLINKED_BUCKETS; bucket++)
+			INT_SET(agi->agi_unlinked[bucket], ARCH_CONVERT,
+				NULLAGINO);
+		error = xfs_bwrite(mp, bp);
+		if (error) {
+			goto error0;
+		}
+		/*
+		 * BNO btree root block
+		 */
+		bp = xfs_buf_get(mp->m_ddev_targp,
+			XFS_AGB_TO_DADDR(mp, agno, XFS_BNO_BLOCK(mp)),
+			BTOBB(mp->m_sb.sb_blocksize), 0);
+		block = XFS_BUF_TO_SBLOCK(bp);
+		memset(block, 0, mp->m_sb.sb_blocksize);
+		INT_SET(block->bb_magic, ARCH_CONVERT, XFS_ABTB_MAGIC);
+		INT_ZERO(block->bb_level, ARCH_CONVERT);
+		INT_SET(block->bb_numrecs, ARCH_CONVERT, 1);
+		INT_SET(block->bb_leftsib, ARCH_CONVERT, NULLAGBLOCK);
+		INT_SET(block->bb_rightsib, ARCH_CONVERT, NULLAGBLOCK);
+		arec = XFS_BTREE_REC_ADDR(mp->m_sb.sb_blocksize, xfs_alloc,
+			block, 1, mp->m_alloc_mxr[0]);
+		INT_SET(arec->ar_startblock, ARCH_CONVERT,
+			XFS_PREALLOC_BLOCKS(mp));
+		INT_SET(arec->ar_blockcount, ARCH_CONVERT,
+			agsize - INT_GET(arec->ar_startblock, ARCH_CONVERT));
+		error = xfs_bwrite(mp, bp);
+		if (error) {
+			goto error0;
+		}
+		/*
+		 * CNT btree root block
+		 */
+		bp = xfs_buf_get(mp->m_ddev_targp,
+			XFS_AGB_TO_DADDR(mp, agno, XFS_CNT_BLOCK(mp)),
+			BTOBB(mp->m_sb.sb_blocksize), 0);
+		block = XFS_BUF_TO_SBLOCK(bp);
+		memset(block, 0, mp->m_sb.sb_blocksize);
+		INT_SET(block->bb_magic, ARCH_CONVERT, XFS_ABTC_MAGIC);
+		INT_ZERO(block->bb_level, ARCH_CONVERT);
+		INT_SET(block->bb_numrecs, ARCH_CONVERT, 1);
+		INT_SET(block->bb_leftsib, ARCH_CONVERT, NULLAGBLOCK);
+		INT_SET(block->bb_rightsib, ARCH_CONVERT, NULLAGBLOCK);
+		arec = XFS_BTREE_REC_ADDR(mp->m_sb.sb_blocksize, xfs_alloc,
+			block, 1, mp->m_alloc_mxr[0]);
+		INT_SET(arec->ar_startblock, ARCH_CONVERT,
+			XFS_PREALLOC_BLOCKS(mp));
+		INT_SET(arec->ar_blockcount, ARCH_CONVERT,
+			agsize - INT_GET(arec->ar_startblock, ARCH_CONVERT));
+		nfree += INT_GET(arec->ar_blockcount, ARCH_CONVERT);
+		error = xfs_bwrite(mp, bp);
+		if (error) {
+			goto error0;
+		}
+		/*
+		 * INO btree root block
+		 */
+		bp = xfs_buf_get(mp->m_ddev_targp,
+			XFS_AGB_TO_DADDR(mp, agno, XFS_IBT_BLOCK(mp)),
+			BTOBB(mp->m_sb.sb_blocksize), 0);
+		block = XFS_BUF_TO_SBLOCK(bp);
+		memset(block, 0, mp->m_sb.sb_blocksize);
+		INT_SET(block->bb_magic, ARCH_CONVERT, XFS_IBT_MAGIC);
+		INT_ZERO(block->bb_level, ARCH_CONVERT);
+		INT_ZERO(block->bb_numrecs, ARCH_CONVERT);
+		INT_SET(block->bb_leftsib, ARCH_CONVERT, NULLAGBLOCK);
+		INT_SET(block->bb_rightsib, ARCH_CONVERT, NULLAGBLOCK);
+		error = xfs_bwrite(mp, bp);
+		if (error) {
+			goto error0;
+		}
+	}
+	xfs_trans_agblocks_delta(tp, nfree);
+	/*
+	 * There are new blocks in the old last a.g.
+	 */
+	if (new) {
+		/*
+		 * Change the agi length.
+		 */
+		error = xfs_ialloc_read_agi(mp, tp, agno, &bp);
+		if (error) {
+			goto error0;
+		}
+		ASSERT(bp);
+		agi = XFS_BUF_TO_AGI(bp);
+		INT_MOD(agi->agi_length, ARCH_CONVERT, new);
+		ASSERT(nagcount == oagcount ||
+		       INT_GET(agi->agi_length, ARCH_CONVERT) ==
+				mp->m_sb.sb_agblocks);
+		xfs_ialloc_log_agi(tp, bp, XFS_AGI_LENGTH);
+		/*
+		 * Change agf length.
+		 */
+		error = xfs_alloc_read_agf(mp, tp, agno, 0, &bp);
+		if (error) {
+			goto error0;
+		}
+		ASSERT(bp);
+		agf = XFS_BUF_TO_AGF(bp);
+		INT_MOD(agf->agf_length, ARCH_CONVERT, new);
+		ASSERT(INT_GET(agf->agf_length, ARCH_CONVERT) ==
+				INT_GET(agi->agi_length, ARCH_CONVERT));
+		/*
+		 * Free the new space.
+		 */
+		error = xfs_free_extent(tp, XFS_AGB_TO_FSB(mp, agno,
+			INT_GET(agf->agf_length, ARCH_CONVERT) - new), new);
+		if (error) {
+			goto error0;
+		}
+	}
+	if (nagcount > oagcount)
+		xfs_trans_mod_sb(tp, XFS_TRANS_SB_AGCOUNT, nagcount - oagcount);
+	if (nb > mp->m_sb.sb_dblocks)
+		xfs_trans_mod_sb(tp, XFS_TRANS_SB_DBLOCKS,
+				 nb - mp->m_sb.sb_dblocks);
+	if (nfree)
+		xfs_trans_mod_sb(tp, XFS_TRANS_SB_FDBLOCKS, nfree);
+	if (dpct)
+		xfs_trans_mod_sb(tp, XFS_TRANS_SB_IMAXPCT, dpct);
+	error = xfs_trans_commit(tp, 0, NULL);
+	if (error) {
+		return error;
+	}
+	/* New allocation groups fully initialized, so update mount struct */
+	if (nagimax)
+		mp->m_maxagi = nagimax;
+	if (mp->m_sb.sb_imax_pct) {
+		__uint64_t icount = mp->m_sb.sb_dblocks * mp->m_sb.sb_imax_pct;
+		do_div(icount, 100);
+		mp->m_maxicount = icount << mp->m_sb.sb_inopblog;
+	} else
+		mp->m_maxicount = 0;
+	for (agno = 1; agno < nagcount; agno++) {
+		error = xfs_read_buf(mp, mp->m_ddev_targp,
+				  XFS_AGB_TO_DADDR(mp, agno, XFS_SB_BLOCK(mp)),
+				  XFS_FSS_TO_BB(mp, 1), 0, &bp);
+		if (error) {
+			xfs_fs_cmn_err(CE_WARN, mp,
+			"error %d reading secondary superblock for ag %d",
+				error, agno);
+			break;
+		}
+		sbp = XFS_BUF_TO_SBP(bp);
+		xfs_xlatesb(sbp, &mp->m_sb, -1, ARCH_CONVERT, XFS_SB_ALL_BITS);
+		/*
+		 * If we get an error writing out the alternate superblocks,
+		 * just issue a warning and continue.  The real work is
+		 * already done and committed.
+		 */
+		if (!(error = xfs_bwrite(mp, bp))) {
+			continue;
+		} else {
+			xfs_fs_cmn_err(CE_WARN, mp,
+		"write error %d updating secondary superblock for ag %d",
+				error, agno);
+			break; /* no point in continuing */
+		}
+	}
+	return 0;
+
+ error0:
+	xfs_trans_cancel(tp, XFS_TRANS_ABORT);
+	return error;
+}
+
+static int
+xfs_growfs_log_private(
+	xfs_mount_t		*mp,	/* mount point for filesystem */
+	xfs_growfs_log_t	*in)	/* growfs log input struct */
+{
+	xfs_extlen_t		nb;
+
+	nb = in->newblocks;
+	if (nb < XFS_MIN_LOG_BLOCKS || nb < XFS_B_TO_FSB(mp, XFS_MIN_LOG_BYTES))
+		return XFS_ERROR(EINVAL);
+	if (nb == mp->m_sb.sb_logblocks &&
+	    in->isint == (mp->m_sb.sb_logstart != 0))
+		return XFS_ERROR(EINVAL);
+	/*
+	 * Moving the log is hard, need new interfaces to sync
+	 * the log first, hold off all activity while moving it.
+	 * Can have shorter or longer log in the same space,
+	 * or transform internal to external log or vice versa.
+	 */
+	return XFS_ERROR(ENOSYS);
+}
+
+/*
+ * protected versions of growfs function acquire and release locks on the mount
+ * point - exported through ioctls: XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG,
+ * XFS_IOC_FSGROWFSRT
+ */
+
+
+int
+xfs_growfs_data(
+	xfs_mount_t		*mp,
+	xfs_growfs_data_t	*in)
+{
+	int error;
+	if (!cpsema(&mp->m_growlock))
+		return XFS_ERROR(EWOULDBLOCK);
+	error = xfs_growfs_data_private(mp, in);
+	vsema(&mp->m_growlock);
+	return error;
+}
+
+int
+xfs_growfs_log(
+	xfs_mount_t		*mp,
+	xfs_growfs_log_t	*in)
+{
+	int error;
+	if (!cpsema(&mp->m_growlock))
+		return XFS_ERROR(EWOULDBLOCK);
+	error = xfs_growfs_log_private(mp, in);
+	vsema(&mp->m_growlock);
+	return error;
+}
+
+/*
+ * exported through ioctl XFS_IOC_FSCOUNTS
+ */
+
+int
+xfs_fs_counts(
+	xfs_mount_t		*mp,
+	xfs_fsop_counts_t	*cnt)
+{
+	unsigned long	s;
+
+	s = XFS_SB_LOCK(mp);
+	cnt->freedata = mp->m_sb.sb_fdblocks;
+	cnt->freertx = mp->m_sb.sb_frextents;
+	cnt->freeino = mp->m_sb.sb_ifree;
+	cnt->allocino = mp->m_sb.sb_icount;
+	XFS_SB_UNLOCK(mp, s);
+	return 0;
+}
+
+/*
+ * exported through ioctl XFS_IOC_SET_RESBLKS & XFS_IOC_GET_RESBLKS
+ *
+ * xfs_reserve_blocks is called to set m_resblks
+ * in the in-core mount table. The number of unused reserved blocks
+ * is kept in m_resbls_avail.
+ *
+ * Reserve the requested number of blocks if available. Otherwise return
+ * as many as possible to satisfy the request. The actual number
+ * reserved are returned in outval
+ *
+ * A null inval pointer indicates that only the current reserved blocks
+ * available  should  be returned no settings are changed.
+ */
+
+int
+xfs_reserve_blocks(
+	xfs_mount_t             *mp,
+	__uint64_t              *inval,
+	xfs_fsop_resblks_t      *outval)
+{
+	__int64_t		lcounter, delta;
+	__uint64_t		request;
+	unsigned long		s;
+
+	/* If inval is null, report current values and return */
+
+	if (inval == (__uint64_t *)NULL) {
+		outval->resblks = mp->m_resblks;
+		outval->resblks_avail = mp->m_resblks_avail;
+		return(0);
+	}
+
+	request = *inval;
+	s = XFS_SB_LOCK(mp);
+
+	/*
+	 * If our previous reservation was larger than the current value,
+	 * then move any unused blocks back to the free pool.
+	 */
+
+	if (mp->m_resblks > request) {
+		lcounter = mp->m_resblks_avail - request;
+		if (lcounter  > 0) {		/* release unused blocks */
+			mp->m_sb.sb_fdblocks += lcounter;
+			mp->m_resblks_avail -= lcounter;
+		}
+		mp->m_resblks = request;
+	} else {
+		delta = request - mp->m_resblks;
+		lcounter = mp->m_sb.sb_fdblocks - delta;
+		if (lcounter < 0) {
+			/* We can't satisfy the request, just get what we can */
+			mp->m_resblks += mp->m_sb.sb_fdblocks;
+			mp->m_resblks_avail += mp->m_sb.sb_fdblocks;
+			mp->m_sb.sb_fdblocks = 0;
+		} else {
+			mp->m_sb.sb_fdblocks = lcounter;
+			mp->m_resblks = request;
+			mp->m_resblks_avail += delta;
+		}
+	}
+
+	outval->resblks = mp->m_resblks;
+	outval->resblks_avail = mp->m_resblks_avail;
+	XFS_SB_UNLOCK(mp, s);
+	return(0);
+}
+
+void
+xfs_fs_log_dummy(xfs_mount_t *mp)
+{
+	xfs_trans_t *tp;
+	xfs_inode_t *ip;
+
+
+	tp = _xfs_trans_alloc(mp, XFS_TRANS_DUMMY1);
+	atomic_inc(&mp->m_active_trans);
+	if (xfs_trans_reserve(tp, 0, XFS_ICHANGE_LOG_RES(mp), 0, 0, 0)) {
+		xfs_trans_cancel(tp, 0);
+		return;
+	}
+
+	ip = mp->m_rootip;
+	xfs_ilock(ip, XFS_ILOCK_EXCL);
+
+	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+	xfs_trans_ihold(tp, ip);
+	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+	xfs_trans_set_sync(tp);
+	xfs_trans_commit(tp, 0, NULL);
+
+	xfs_iunlock(ip, XFS_ILOCK_EXCL);
+}
+
+int
+xfs_fs_goingdown(
+	xfs_mount_t	*mp,
+	__uint32_t	inflags)
+{
+	switch (inflags) {
+	case XFS_FSOP_GOING_FLAGS_DEFAULT: {
+		struct vfs *vfsp = XFS_MTOVFS(mp);
+		struct super_block *sb = freeze_bdev(vfsp->vfs_super->s_bdev);
+
+		if (sb) {
+			xfs_force_shutdown(mp, XFS_FORCE_UMOUNT);
+			thaw_bdev(sb->s_bdev, sb);
+		}
+	
+		break;
+	}
+	case XFS_FSOP_GOING_FLAGS_LOGFLUSH:
+		xfs_force_shutdown(mp, XFS_FORCE_UMOUNT);
+		break;
+	case XFS_FSOP_GOING_FLAGS_NOLOGFLUSH:
+		xfs_force_shutdown(mp, XFS_FORCE_UMOUNT|XFS_LOG_IO_ERROR);
+		break;
+	default:
+		return XFS_ERROR(EINVAL);
+	}
+
+	return 0;
+}
diff --git a/fs/xfs/xfs_fsops.h b/fs/xfs/xfs_fsops.h
new file mode 100644
index 00000000000000..b61486173a610e
--- /dev/null
+++ b/fs/xfs/xfs_fsops.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2000-2001 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_FSOPS_H__
+#define	__XFS_FSOPS_H__
+
+int
+xfs_fs_geometry(
+	xfs_mount_t		*mp,
+	xfs_fsop_geom_t		*geo,
+	int			new_version);
+
+int
+xfs_growfs_data(
+	xfs_mount_t		*mp,
+	xfs_growfs_data_t	*in);
+
+int
+xfs_growfs_log(
+	xfs_mount_t		*mp,
+	xfs_growfs_log_t	*in);
+
+int
+xfs_fs_counts(
+	xfs_mount_t		*mp,
+	xfs_fsop_counts_t	*cnt);
+
+int
+xfs_reserve_blocks(
+	xfs_mount_t		*mp,
+	__uint64_t		*inval,
+	xfs_fsop_resblks_t	*outval);
+
+int
+xfs_fs_goingdown(
+	xfs_mount_t		*mp,
+	__uint32_t		inflags);
+
+#endif	/* __XFS_FSOPS_H__ */
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
new file mode 100644
index 00000000000000..76ffe4a8b4fe18
--- /dev/null
+++ b/fs/xfs/xfs_ialloc.c
@@ -0,0 +1,1402 @@
+/*
+ * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_alloc.h"
+#include "xfs_bit.h"
+#include "xfs_rtalloc.h"
+#include "xfs_error.h"
+#include "xfs_bmap.h"
+
+/*
+ * Log specified fields for the inode given by bp and off.
+ */
+STATIC void
+xfs_ialloc_log_di(
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_buf_t	*bp,		/* inode buffer */
+	int		off,		/* index of inode in buffer */
+	int		fields)		/* bitmask of fields to log */
+{
+	int			first;		/* first byte number */
+	int			ioffset;	/* off in bytes */
+	int			last;		/* last byte number */
+	xfs_mount_t		*mp;		/* mount point structure */
+	static const short	offsets[] = {	/* field offsets */
+						/* keep in sync with bits */
+		offsetof(xfs_dinode_core_t, di_magic),
+		offsetof(xfs_dinode_core_t, di_mode),
+		offsetof(xfs_dinode_core_t, di_version),
+		offsetof(xfs_dinode_core_t, di_format),
+		offsetof(xfs_dinode_core_t, di_onlink),
+		offsetof(xfs_dinode_core_t, di_uid),
+		offsetof(xfs_dinode_core_t, di_gid),
+		offsetof(xfs_dinode_core_t, di_nlink),
+		offsetof(xfs_dinode_core_t, di_projid),
+		offsetof(xfs_dinode_core_t, di_pad),
+		offsetof(xfs_dinode_core_t, di_atime),
+		offsetof(xfs_dinode_core_t, di_mtime),
+		offsetof(xfs_dinode_core_t, di_ctime),
+		offsetof(xfs_dinode_core_t, di_size),
+		offsetof(xfs_dinode_core_t, di_nblocks),
+		offsetof(xfs_dinode_core_t, di_extsize),
+		offsetof(xfs_dinode_core_t, di_nextents),
+		offsetof(xfs_dinode_core_t, di_anextents),
+		offsetof(xfs_dinode_core_t, di_forkoff),
+		offsetof(xfs_dinode_core_t, di_aformat),
+		offsetof(xfs_dinode_core_t, di_dmevmask),
+		offsetof(xfs_dinode_core_t, di_dmstate),
+		offsetof(xfs_dinode_core_t, di_flags),
+		offsetof(xfs_dinode_core_t, di_gen),
+		offsetof(xfs_dinode_t, di_next_unlinked),
+		offsetof(xfs_dinode_t, di_u),
+		offsetof(xfs_dinode_t, di_a),
+		sizeof(xfs_dinode_t)
+	};
+
+
+	ASSERT(offsetof(xfs_dinode_t, di_core) == 0);
+	ASSERT((fields & (XFS_DI_U|XFS_DI_A)) == 0);
+	mp = tp->t_mountp;
+	/*
+	 * Get the inode-relative first and last bytes for these fields
+	 */
+	xfs_btree_offsets(fields, offsets, XFS_DI_NUM_BITS, &first, &last);
+	/*
+	 * Convert to buffer offsets and log it.
+	 */
+	ioffset = off << mp->m_sb.sb_inodelog;
+	first += ioffset;
+	last += ioffset;
+	xfs_trans_log_buf(tp, bp, first, last);
+}
+
+/*
+ * Allocation group level functions.
+ */
+
+/*
+ * Allocate new inodes in the allocation group specified by agbp.
+ * Return 0 for success, else error code.
+ */
+STATIC int				/* error code or 0 */
+xfs_ialloc_ag_alloc(
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_buf_t	*agbp,		/* alloc group buffer */
+	int		*alloc)
+{
+	xfs_agi_t	*agi;		/* allocation group header */
+	xfs_alloc_arg_t	args;		/* allocation argument structure */
+	int		blks_per_cluster;  /* fs blocks per inode cluster */
+	xfs_btree_cur_t	*cur;		/* inode btree cursor */
+	xfs_daddr_t	d;		/* disk addr of buffer */
+	int		error;
+	xfs_buf_t	*fbuf;		/* new free inodes' buffer */
+	xfs_dinode_t	*free;		/* new free inode structure */
+	int		i;		/* inode counter */
+	int		j;		/* block counter */
+	int		nbufs;		/* num bufs of new inodes */
+	xfs_agino_t	newino;		/* new first inode's number */
+	xfs_agino_t	newlen;		/* new number of inodes */
+	int		ninodes;	/* num inodes per buf */
+	xfs_agino_t	thisino;	/* current inode number, for loop */
+	int		version;	/* inode version number to use */
+	int		isaligned;	/* inode allocation at stripe unit */
+					/* boundary */
+	xfs_dinode_core_t dic;          /* a dinode_core to copy to new */
+					/* inodes */
+
+	args.tp = tp;
+	args.mp = tp->t_mountp;
+
+	/*
+	 * Locking will ensure that we don't have two callers in here
+	 * at one time.
+	 */
+	newlen = XFS_IALLOC_INODES(args.mp);
+	if (args.mp->m_maxicount &&
+	    args.mp->m_sb.sb_icount + newlen > args.mp->m_maxicount)
+		return XFS_ERROR(ENOSPC);
+	args.minlen = args.maxlen = XFS_IALLOC_BLOCKS(args.mp);
+	/*
+	 * Set the alignment for the allocation.
+	 * If stripe alignment is turned on then align at stripe unit
+	 * boundary.
+	 * If the cluster size is smaller than a filesystem block
+	 * then we're doing I/O for inodes in filesystem block size pieces,
+	 * so don't need alignment anyway.
+	 */
+	isaligned = 0;
+	if (args.mp->m_sinoalign) {
+		ASSERT(!(args.mp->m_flags & XFS_MOUNT_NOALIGN));
+		args.alignment = args.mp->m_dalign;
+		isaligned = 1;
+	} else if (XFS_SB_VERSION_HASALIGN(&args.mp->m_sb) &&
+	    args.mp->m_sb.sb_inoalignmt >=
+	    XFS_B_TO_FSBT(args.mp, XFS_INODE_CLUSTER_SIZE(args.mp)))
+		args.alignment = args.mp->m_sb.sb_inoalignmt;
+	else
+		args.alignment = 1;
+	agi = XFS_BUF_TO_AGI(agbp);
+	/*
+	 * Need to figure out where to allocate the inode blocks.
+	 * Ideally they should be spaced out through the a.g.
+	 * For now, just allocate blocks up front.
+	 */
+	args.agbno = INT_GET(agi->agi_root, ARCH_CONVERT);
+	args.fsbno = XFS_AGB_TO_FSB(args.mp, INT_GET(agi->agi_seqno, ARCH_CONVERT),
+				    args.agbno);
+	/*
+	 * Allocate a fixed-size extent of inodes.
+	 */
+	args.type = XFS_ALLOCTYPE_NEAR_BNO;
+	args.mod = args.total = args.wasdel = args.isfl = args.userdata =
+		args.minalignslop = 0;
+	args.prod = 1;
+	/*
+	 * Allow space for the inode btree to split.
+	 */
+	args.minleft = XFS_IN_MAXLEVELS(args.mp) - 1;
+	if ((error = xfs_alloc_vextent(&args)))
+		return error;
+
+	/*
+	 * If stripe alignment is turned on, then try again with cluster
+	 * alignment.
+	 */
+	if (isaligned && args.fsbno == NULLFSBLOCK) {
+		args.type = XFS_ALLOCTYPE_NEAR_BNO;
+		args.agbno = INT_GET(agi->agi_root, ARCH_CONVERT);
+		args.fsbno = XFS_AGB_TO_FSB(args.mp,
+				INT_GET(agi->agi_seqno, ARCH_CONVERT), args.agbno);
+		if (XFS_SB_VERSION_HASALIGN(&args.mp->m_sb) &&
+			args.mp->m_sb.sb_inoalignmt >=
+			XFS_B_TO_FSBT(args.mp, XFS_INODE_CLUSTER_SIZE(args.mp)))
+				args.alignment = args.mp->m_sb.sb_inoalignmt;
+		else
+			args.alignment = 1;
+		if ((error = xfs_alloc_vextent(&args)))
+			return error;
+	}
+
+	if (args.fsbno == NULLFSBLOCK) {
+		*alloc = 0;
+		return 0;
+	}
+	ASSERT(args.len == args.minlen);
+	/*
+	 * Convert the results.
+	 */
+	newino = XFS_OFFBNO_TO_AGINO(args.mp, args.agbno, 0);
+	/*
+	 * Loop over the new block(s), filling in the inodes.
+	 * For small block sizes, manipulate the inodes in buffers
+	 * which are multiples of the blocks size.
+	 */
+	if (args.mp->m_sb.sb_blocksize >= XFS_INODE_CLUSTER_SIZE(args.mp)) {
+		blks_per_cluster = 1;
+		nbufs = (int)args.len;
+		ninodes = args.mp->m_sb.sb_inopblock;
+	} else {
+		blks_per_cluster = XFS_INODE_CLUSTER_SIZE(args.mp) /
+				   args.mp->m_sb.sb_blocksize;
+		nbufs = (int)args.len / blks_per_cluster;
+		ninodes = blks_per_cluster * args.mp->m_sb.sb_inopblock;
+	}
+	/*
+	 * Figure out what version number to use in the inodes we create.
+	 * If the superblock version has caught up to the one that supports
+	 * the new inode format, then use the new inode version.  Otherwise
+	 * use the old version so that old kernels will continue to be
+	 * able to use the file system.
+	 */
+	if (XFS_SB_VERSION_HASNLINK(&args.mp->m_sb))
+		version = XFS_DINODE_VERSION_2;
+	else
+		version = XFS_DINODE_VERSION_1;
+
+	memset(&dic, 0, sizeof(xfs_dinode_core_t));
+	INT_SET(dic.di_magic, ARCH_CONVERT, XFS_DINODE_MAGIC);
+	INT_SET(dic.di_version, ARCH_CONVERT, version);
+
+	for (j = 0; j < nbufs; j++) {
+		/*
+		 * Get the block.
+		 */
+		d = XFS_AGB_TO_DADDR(args.mp, INT_GET(agi->agi_seqno, ARCH_CONVERT),
+				     args.agbno + (j * blks_per_cluster));
+		fbuf = xfs_trans_get_buf(tp, args.mp->m_ddev_targp, d,
+					 args.mp->m_bsize * blks_per_cluster,
+					 XFS_BUF_LOCK);
+		ASSERT(fbuf);
+		ASSERT(!XFS_BUF_GETERROR(fbuf));
+		/*
+		 * Loop over the inodes in this buffer.
+		 */
+
+		for (i = 0; i < ninodes; i++) {
+			free = XFS_MAKE_IPTR(args.mp, fbuf, i);
+			memcpy(&(free->di_core), &dic, sizeof(xfs_dinode_core_t));
+			INT_SET(free->di_next_unlinked, ARCH_CONVERT, NULLAGINO);
+			xfs_ialloc_log_di(tp, fbuf, i,
+				XFS_DI_CORE_BITS | XFS_DI_NEXT_UNLINKED);
+		}
+		xfs_trans_inode_alloc_buf(tp, fbuf);
+	}
+	INT_MOD(agi->agi_count, ARCH_CONVERT, newlen);
+	INT_MOD(agi->agi_freecount, ARCH_CONVERT, newlen);
+	down_read(&args.mp->m_peraglock);
+	args.mp->m_perag[INT_GET(agi->agi_seqno, ARCH_CONVERT)].pagi_freecount += newlen;
+	up_read(&args.mp->m_peraglock);
+	INT_SET(agi->agi_newino, ARCH_CONVERT, newino);
+	/*
+	 * Insert records describing the new inode chunk into the btree.
+	 */
+	cur = xfs_btree_init_cursor(args.mp, tp, agbp,
+			INT_GET(agi->agi_seqno, ARCH_CONVERT),
+			XFS_BTNUM_INO, (xfs_inode_t *)0, 0);
+	for (thisino = newino;
+	     thisino < newino + newlen;
+	     thisino += XFS_INODES_PER_CHUNK) {
+		if ((error = xfs_inobt_lookup_eq(cur, thisino,
+				XFS_INODES_PER_CHUNK, XFS_INOBT_ALL_FREE, &i))) {
+			xfs_btree_del_cursor(cur, XFS_BTREE_ERROR);
+			return error;
+		}
+		ASSERT(i == 0);
+		if ((error = xfs_inobt_insert(cur, &i))) {
+			xfs_btree_del_cursor(cur, XFS_BTREE_ERROR);
+			return error;
+		}
+		ASSERT(i == 1);
+	}
+	xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR);
+	/*
+	 * Log allocation group header fields
+	 */
+	xfs_ialloc_log_agi(tp, agbp,
+		XFS_AGI_COUNT | XFS_AGI_FREECOUNT | XFS_AGI_NEWINO);
+	/*
+	 * Modify/log superblock values for inode count and inode free count.
+	 */
+	xfs_trans_mod_sb(tp, XFS_TRANS_SB_ICOUNT, (long)newlen);
+	xfs_trans_mod_sb(tp, XFS_TRANS_SB_IFREE, (long)newlen);
+	*alloc = 1;
+	return 0;
+}
+
+STATIC __inline xfs_agnumber_t
+xfs_ialloc_next_ag(
+	xfs_mount_t	*mp)
+{
+	xfs_agnumber_t	agno;
+
+	spin_lock(&mp->m_agirotor_lock);
+	agno = mp->m_agirotor;
+	if (++mp->m_agirotor == mp->m_maxagi)
+		mp->m_agirotor = 0;
+	spin_unlock(&mp->m_agirotor_lock);
+
+	return agno;
+}
+
+/*
+ * Select an allocation group to look for a free inode in, based on the parent
+ * inode and then mode.  Return the allocation group buffer.
+ */
+STATIC xfs_buf_t *			/* allocation group buffer */
+xfs_ialloc_ag_select(
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_ino_t	parent,		/* parent directory inode number */
+	mode_t		mode,		/* bits set to indicate file type */
+	int		okalloc)	/* ok to allocate more space */
+{
+	xfs_buf_t	*agbp;		/* allocation group header buffer */
+	xfs_agnumber_t	agcount;	/* number of ag's in the filesystem */
+	xfs_agnumber_t	agno;		/* current ag number */
+	int		flags;		/* alloc buffer locking flags */
+	xfs_extlen_t	ineed;		/* blocks needed for inode allocation */
+	xfs_extlen_t	longest = 0;	/* longest extent available */
+	xfs_mount_t	*mp;		/* mount point structure */
+	int		needspace;	/* file mode implies space allocated */
+	xfs_perag_t	*pag;		/* per allocation group data */
+	xfs_agnumber_t	pagno;		/* parent (starting) ag number */
+
+	/*
+	 * Files of these types need at least one block if length > 0
+	 * (and they won't fit in the inode, but that's hard to figure out).
+	 */
+	needspace = S_ISDIR(mode) || S_ISREG(mode) || S_ISLNK(mode);
+	mp = tp->t_mountp;
+	agcount = mp->m_maxagi;
+	if (S_ISDIR(mode))
+		pagno = xfs_ialloc_next_ag(mp);
+	else {
+		pagno = XFS_INO_TO_AGNO(mp, parent);
+		if (pagno >= agcount)
+			pagno = 0;
+	}
+	ASSERT(pagno < agcount);
+	/*
+	 * Loop through allocation groups, looking for one with a little
+	 * free space in it.  Note we don't look for free inodes, exactly.
+	 * Instead, we include whether there is a need to allocate inodes
+	 * to mean that blocks must be allocated for them,
+	 * if none are currently free.
+	 */
+	agno = pagno;
+	flags = XFS_ALLOC_FLAG_TRYLOCK;
+	down_read(&mp->m_peraglock);
+	for (;;) {
+		pag = &mp->m_perag[agno];
+		if (!pag->pagi_init) {
+			if (xfs_ialloc_read_agi(mp, tp, agno, &agbp)) {
+				agbp = NULL;
+				goto nextag;
+			}
+		} else
+			agbp = NULL;
+
+		if (!pag->pagi_inodeok) {
+			xfs_ialloc_next_ag(mp);
+			goto unlock_nextag;
+		}
+
+		/*
+		 * Is there enough free space for the file plus a block
+		 * of inodes (if we need to allocate some)?
+		 */
+		ineed = pag->pagi_freecount ? 0 : XFS_IALLOC_BLOCKS(mp);
+		if (ineed && !pag->pagf_init) {
+			if (agbp == NULL &&
+			    xfs_ialloc_read_agi(mp, tp, agno, &agbp)) {
+				agbp = NULL;
+				goto nextag;
+			}
+			(void)xfs_alloc_pagf_init(mp, tp, agno, flags);
+		}
+		if (!ineed || pag->pagf_init) {
+			if (ineed && !(longest = pag->pagf_longest))
+				longest = pag->pagf_flcount > 0;
+			if (!ineed ||
+			    (pag->pagf_freeblks >= needspace + ineed &&
+			     longest >= ineed &&
+			     okalloc)) {
+				if (agbp == NULL &&
+				    xfs_ialloc_read_agi(mp, tp, agno, &agbp)) {
+					agbp = NULL;
+					goto nextag;
+				}
+				up_read(&mp->m_peraglock);
+				return agbp;
+			}
+		}
+unlock_nextag:
+		if (agbp)
+			xfs_trans_brelse(tp, agbp);
+nextag:
+		/*
+		 * No point in iterating over the rest, if we're shutting
+		 * down.
+		 */
+		if (XFS_FORCED_SHUTDOWN(mp)) {
+			up_read(&mp->m_peraglock);
+			return (xfs_buf_t *)0;
+		}
+		agno++;
+		if (agno >= agcount)
+			agno = 0;
+		if (agno == pagno) {
+			if (flags == 0) {
+				up_read(&mp->m_peraglock);
+				return (xfs_buf_t *)0;
+			}
+			flags = 0;
+		}
+	}
+}
+
+/*
+ * Visible inode allocation functions.
+ */
+
+/*
+ * Allocate an inode on disk.
+ * Mode is used to tell whether the new inode will need space, and whether
+ * it is a directory.
+ *
+ * The arguments IO_agbp and alloc_done are defined to work within
+ * the constraint of one allocation per transaction.
+ * xfs_dialloc() is designed to be called twice if it has to do an
+ * allocation to make more free inodes.  On the first call,
+ * IO_agbp should be set to NULL. If an inode is available,
+ * i.e., xfs_dialloc() did not need to do an allocation, an inode
+ * number is returned.  In this case, IO_agbp would be set to the
+ * current ag_buf and alloc_done set to false.
+ * If an allocation needed to be done, xfs_dialloc would return
+ * the current ag_buf in IO_agbp and set alloc_done to true.
+ * The caller should then commit the current transaction, allocate a new
+ * transaction, and call xfs_dialloc() again, passing in the previous
+ * value of IO_agbp.  IO_agbp should be held across the transactions.
+ * Since the agbp is locked across the two calls, the second call is
+ * guaranteed to have a free inode available.
+ *
+ * Once we successfully pick an inode its number is returned and the
+ * on-disk data structures are updated.  The inode itself is not read
+ * in, since doing so would break ordering constraints with xfs_reclaim.
+ */
+int
+xfs_dialloc(
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_ino_t	parent,		/* parent inode (directory) */
+	mode_t		mode,		/* mode bits for new inode */
+	int		okalloc,	/* ok to allocate more space */
+	xfs_buf_t	**IO_agbp,	/* in/out ag header's buffer */
+	boolean_t	*alloc_done,	/* true if we needed to replenish
+					   inode freelist */
+	xfs_ino_t	*inop)		/* inode number allocated */
+{
+	xfs_agnumber_t	agcount;	/* number of allocation groups */
+	xfs_buf_t	*agbp;		/* allocation group header's buffer */
+	xfs_agnumber_t	agno;		/* allocation group number */
+	xfs_agi_t	*agi;		/* allocation group header structure */
+	xfs_btree_cur_t	*cur;		/* inode allocation btree cursor */
+	int		error;		/* error return value */
+	int		i;		/* result code */
+	int		ialloced;	/* inode allocation status */
+	int		noroom = 0;	/* no space for inode blk allocation */
+	xfs_ino_t	ino;		/* fs-relative inode to be returned */
+	/* REFERENCED */
+	int		j;		/* result code */
+	xfs_mount_t	*mp;		/* file system mount structure */
+	int		offset;		/* index of inode in chunk */
+	xfs_agino_t	pagino;		/* parent's a.g. relative inode # */
+	xfs_agnumber_t	pagno;		/* parent's allocation group number */
+	xfs_inobt_rec_t	rec;		/* inode allocation record */
+	xfs_agnumber_t	tagno;		/* testing allocation group number */
+	xfs_btree_cur_t	*tcur;		/* temp cursor */
+	xfs_inobt_rec_t	trec;		/* temp inode allocation record */
+
+
+	if (*IO_agbp == NULL) {
+		/*
+		 * We do not have an agbp, so select an initial allocation
+		 * group for inode allocation.
+		 */
+		agbp = xfs_ialloc_ag_select(tp, parent, mode, okalloc);
+		/*
+		 * Couldn't find an allocation group satisfying the
+		 * criteria, give up.
+		 */
+		if (!agbp) {
+			*inop = NULLFSINO;
+			return 0;
+		}
+		agi = XFS_BUF_TO_AGI(agbp);
+		ASSERT(INT_GET(agi->agi_magicnum, ARCH_CONVERT) == XFS_AGI_MAGIC);
+	} else {
+		/*
+		 * Continue where we left off before.  In this case, we
+		 * know that the allocation group has free inodes.
+		 */
+		agbp = *IO_agbp;
+		agi = XFS_BUF_TO_AGI(agbp);
+		ASSERT(INT_GET(agi->agi_magicnum, ARCH_CONVERT) == XFS_AGI_MAGIC);
+		ASSERT(INT_GET(agi->agi_freecount, ARCH_CONVERT) > 0);
+	}
+	mp = tp->t_mountp;
+	agcount = mp->m_sb.sb_agcount;
+	agno = INT_GET(agi->agi_seqno, ARCH_CONVERT);
+	tagno = agno;
+	pagno = XFS_INO_TO_AGNO(mp, parent);
+	pagino = XFS_INO_TO_AGINO(mp, parent);
+
+	/*
+	 * If we have already hit the ceiling of inode blocks then clear
+	 * okalloc so we scan all available agi structures for a free
+	 * inode.
+	 */
+
+	if (mp->m_maxicount &&
+	    mp->m_sb.sb_icount + XFS_IALLOC_INODES(mp) > mp->m_maxicount) {
+		noroom = 1;
+		okalloc = 0;
+	}
+
+	/*
+	 * Loop until we find an allocation group that either has free inodes
+	 * or in which we can allocate some inodes.  Iterate through the
+	 * allocation groups upward, wrapping at the end.
+	 */
+	*alloc_done = B_FALSE;
+	while (INT_ISZERO(agi->agi_freecount, ARCH_CONVERT)) {
+		/*
+		 * Don't do anything if we're not supposed to allocate
+		 * any blocks, just go on to the next ag.
+		 */
+		if (okalloc) {
+			/*
+			 * Try to allocate some new inodes in the allocation
+			 * group.
+			 */
+			if ((error = xfs_ialloc_ag_alloc(tp, agbp, &ialloced))) {
+				xfs_trans_brelse(tp, agbp);
+				if (error == ENOSPC) {
+					*inop = NULLFSINO;
+					return 0;
+				} else
+					return error;
+			}
+			if (ialloced) {
+				/*
+				 * We successfully allocated some inodes, return
+				 * the current context to the caller so that it
+				 * can commit the current transaction and call
+				 * us again where we left off.
+				 */
+				ASSERT(INT_GET(agi->agi_freecount, ARCH_CONVERT) > 0);
+				*alloc_done = B_TRUE;
+				*IO_agbp = agbp;
+				*inop = NULLFSINO;
+				return 0;
+			}
+		}
+		/*
+		 * If it failed, give up on this ag.
+		 */
+		xfs_trans_brelse(tp, agbp);
+		/*
+		 * Go on to the next ag: get its ag header.
+		 */
+nextag:
+		if (++tagno == agcount)
+			tagno = 0;
+		if (tagno == agno) {
+			*inop = NULLFSINO;
+			return noroom ? ENOSPC : 0;
+		}
+		down_read(&mp->m_peraglock);
+		if (mp->m_perag[tagno].pagi_inodeok == 0) {
+			up_read(&mp->m_peraglock);
+			goto nextag;
+		}
+		error = xfs_ialloc_read_agi(mp, tp, tagno, &agbp);
+		up_read(&mp->m_peraglock);
+		if (error)
+			goto nextag;
+		agi = XFS_BUF_TO_AGI(agbp);
+		ASSERT(INT_GET(agi->agi_magicnum, ARCH_CONVERT) == XFS_AGI_MAGIC);
+	}
+	/*
+	 * Here with an allocation group that has a free inode.
+	 * Reset agno since we may have chosen a new ag in the
+	 * loop above.
+	 */
+	agno = tagno;
+	*IO_agbp = NULL;
+	cur = xfs_btree_init_cursor(mp, tp, agbp, INT_GET(agi->agi_seqno, ARCH_CONVERT),
+				    XFS_BTNUM_INO, (xfs_inode_t *)0, 0);
+	/*
+	 * If pagino is 0 (this is the root inode allocation) use newino.
+	 * This must work because we've just allocated some.
+	 */
+	if (!pagino)
+		pagino = INT_GET(agi->agi_newino, ARCH_CONVERT);
+#ifdef DEBUG
+	if (cur->bc_nlevels == 1) {
+		int	freecount = 0;
+
+		if ((error = xfs_inobt_lookup_ge(cur, 0, 0, 0, &i)))
+			goto error0;
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		do {
+			if ((error = xfs_inobt_get_rec(cur, &rec.ir_startino,
+					&rec.ir_freecount, &rec.ir_free, &i, ARCH_NOCONVERT)))
+				goto error0;
+			XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+			freecount += rec.ir_freecount;
+			if ((error = xfs_inobt_increment(cur, 0, &i)))
+				goto error0;
+		} while (i == 1);
+
+		ASSERT(freecount == INT_GET(agi->agi_freecount, ARCH_CONVERT) ||
+		       XFS_FORCED_SHUTDOWN(mp));
+	}
+#endif
+	/*
+	 * If in the same a.g. as the parent, try to get near the parent.
+	 */
+	if (pagno == agno) {
+		if ((error = xfs_inobt_lookup_le(cur, pagino, 0, 0, &i)))
+			goto error0;
+		if (i != 0 &&
+		    (error = xfs_inobt_get_rec(cur, &rec.ir_startino,
+			    &rec.ir_freecount, &rec.ir_free, &j, ARCH_NOCONVERT)) == 0 &&
+		    j == 1 &&
+		    rec.ir_freecount > 0) {
+			/*
+			 * Found a free inode in the same chunk
+			 * as parent, done.
+			 */
+		}
+		/*
+		 * In the same a.g. as parent, but parent's chunk is full.
+		 */
+		else {
+			int	doneleft;	/* done, to the left */
+			int	doneright;	/* done, to the right */
+
+			if (error)
+				goto error0;
+			ASSERT(i == 1);
+			ASSERT(j == 1);
+			/*
+			 * Duplicate the cursor, search left & right
+			 * simultaneously.
+			 */
+			if ((error = xfs_btree_dup_cursor(cur, &tcur)))
+				goto error0;
+			/*
+			 * Search left with tcur, back up 1 record.
+			 */
+			if ((error = xfs_inobt_decrement(tcur, 0, &i)))
+				goto error1;
+			doneleft = !i;
+			if (!doneleft) {
+				if ((error = xfs_inobt_get_rec(tcur,
+						&trec.ir_startino,
+						&trec.ir_freecount,
+						&trec.ir_free, &i, ARCH_NOCONVERT)))
+					goto error1;
+				XFS_WANT_CORRUPTED_GOTO(i == 1, error1);
+			}
+			/*
+			 * Search right with cur, go forward 1 record.
+			 */
+			if ((error = xfs_inobt_increment(cur, 0, &i)))
+				goto error1;
+			doneright = !i;
+			if (!doneright) {
+				if ((error = xfs_inobt_get_rec(cur,
+						&rec.ir_startino,
+						&rec.ir_freecount,
+						&rec.ir_free, &i, ARCH_NOCONVERT)))
+					goto error1;
+				XFS_WANT_CORRUPTED_GOTO(i == 1, error1);
+			}
+			/*
+			 * Loop until we find the closest inode chunk
+			 * with a free one.
+			 */
+			while (!doneleft || !doneright) {
+				int	useleft;  /* using left inode
+						     chunk this time */
+
+				/*
+				 * Figure out which block is closer,
+				 * if both are valid.
+				 */
+				if (!doneleft && !doneright)
+					useleft =
+						pagino -
+						(trec.ir_startino +
+						 XFS_INODES_PER_CHUNK - 1) <
+						 rec.ir_startino - pagino;
+				else
+					useleft = !doneleft;
+				/*
+				 * If checking the left, does it have
+				 * free inodes?
+				 */
+				if (useleft && trec.ir_freecount) {
+					/*
+					 * Yes, set it up as the chunk to use.
+					 */
+					rec = trec;
+					xfs_btree_del_cursor(cur,
+						XFS_BTREE_NOERROR);
+					cur = tcur;
+					break;
+				}
+				/*
+				 * If checking the right, does it have
+				 * free inodes?
+				 */
+				if (!useleft && rec.ir_freecount) {
+					/*
+					 * Yes, it's already set up.
+					 */
+					xfs_btree_del_cursor(tcur,
+						XFS_BTREE_NOERROR);
+					break;
+				}
+				/*
+				 * If used the left, get another one
+				 * further left.
+				 */
+				if (useleft) {
+					if ((error = xfs_inobt_decrement(tcur, 0,
+							&i)))
+						goto error1;
+					doneleft = !i;
+					if (!doneleft) {
+						if ((error = xfs_inobt_get_rec(
+							    tcur,
+							    &trec.ir_startino,
+							    &trec.ir_freecount,
+							    &trec.ir_free, &i, ARCH_NOCONVERT)))
+							goto error1;
+						XFS_WANT_CORRUPTED_GOTO(i == 1,
+							error1);
+					}
+				}
+				/*
+				 * If used the right, get another one
+				 * further right.
+				 */
+				else {
+					if ((error = xfs_inobt_increment(cur, 0,
+							&i)))
+						goto error1;
+					doneright = !i;
+					if (!doneright) {
+						if ((error = xfs_inobt_get_rec(
+							    cur,
+							    &rec.ir_startino,
+							    &rec.ir_freecount,
+							    &rec.ir_free, &i, ARCH_NOCONVERT)))
+							goto error1;
+						XFS_WANT_CORRUPTED_GOTO(i == 1,
+							error1);
+					}
+				}
+			}
+			ASSERT(!doneleft || !doneright);
+		}
+	}
+	/*
+	 * In a different a.g. from the parent.
+	 * See if the most recently allocated block has any free.
+	 */
+	else if (INT_GET(agi->agi_newino, ARCH_CONVERT) != NULLAGINO) {
+		if ((error = xfs_inobt_lookup_eq(cur,
+				INT_GET(agi->agi_newino, ARCH_CONVERT), 0, 0, &i)))
+			goto error0;
+		if (i == 1 &&
+		    (error = xfs_inobt_get_rec(cur, &rec.ir_startino,
+			    &rec.ir_freecount, &rec.ir_free, &j, ARCH_NOCONVERT)) == 0 &&
+		    j == 1 &&
+		    rec.ir_freecount > 0) {
+			/*
+			 * The last chunk allocated in the group still has
+			 * a free inode.
+			 */
+		}
+		/*
+		 * None left in the last group, search the whole a.g.
+		 */
+		else {
+			if (error)
+				goto error0;
+			if ((error = xfs_inobt_lookup_ge(cur, 0, 0, 0, &i)))
+				goto error0;
+			ASSERT(i == 1);
+			for (;;) {
+				if ((error = xfs_inobt_get_rec(cur,
+						&rec.ir_startino,
+						&rec.ir_freecount, &rec.ir_free,
+						&i, ARCH_NOCONVERT)))
+					goto error0;
+				XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+				if (rec.ir_freecount > 0)
+					break;
+				if ((error = xfs_inobt_increment(cur, 0, &i)))
+					goto error0;
+				XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+			}
+		}
+	}
+	offset = XFS_IALLOC_FIND_FREE(&rec.ir_free);
+	ASSERT(offset >= 0);
+	ASSERT(offset < XFS_INODES_PER_CHUNK);
+	ASSERT((XFS_AGINO_TO_OFFSET(mp, rec.ir_startino) %
+				   XFS_INODES_PER_CHUNK) == 0);
+	ino = XFS_AGINO_TO_INO(mp, agno, rec.ir_startino + offset);
+	XFS_INOBT_CLR_FREE(&rec, offset, ARCH_NOCONVERT);
+	rec.ir_freecount--;
+	if ((error = xfs_inobt_update(cur, rec.ir_startino, rec.ir_freecount,
+			rec.ir_free)))
+		goto error0;
+	INT_MOD(agi->agi_freecount, ARCH_CONVERT, -1);
+	xfs_ialloc_log_agi(tp, agbp, XFS_AGI_FREECOUNT);
+	down_read(&mp->m_peraglock);
+	mp->m_perag[tagno].pagi_freecount--;
+	up_read(&mp->m_peraglock);
+#ifdef DEBUG
+	if (cur->bc_nlevels == 1) {
+		int	freecount = 0;
+
+		if ((error = xfs_inobt_lookup_ge(cur, 0, 0, 0, &i)))
+			goto error0;
+		do {
+			if ((error = xfs_inobt_get_rec(cur, &rec.ir_startino,
+					&rec.ir_freecount, &rec.ir_free, &i, ARCH_NOCONVERT)))
+				goto error0;
+			XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+			freecount += rec.ir_freecount;
+			if ((error = xfs_inobt_increment(cur, 0, &i)))
+				goto error0;
+		} while (i == 1);
+		ASSERT(freecount == INT_GET(agi->agi_freecount, ARCH_CONVERT) ||
+		       XFS_FORCED_SHUTDOWN(mp));
+	}
+#endif
+	xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR);
+	xfs_trans_mod_sb(tp, XFS_TRANS_SB_IFREE, -1);
+	*inop = ino;
+	return 0;
+error1:
+	xfs_btree_del_cursor(tcur, XFS_BTREE_ERROR);
+error0:
+	xfs_btree_del_cursor(cur, XFS_BTREE_ERROR);
+	return error;
+}
+
+/*
+ * Free disk inode.  Carefully avoids touching the incore inode, all
+ * manipulations incore are the caller's responsibility.
+ * The on-disk inode is not changed by this operation, only the
+ * btree (free inode mask) is changed.
+ */
+int
+xfs_difree(
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_ino_t	inode,		/* inode to be freed */
+	xfs_bmap_free_t	*flist,		/* extents to free */
+	int		*delete,	/* set if inode cluster was deleted */
+	xfs_ino_t	*first_ino)	/* first inode in deleted cluster */
+{
+	/* REFERENCED */
+	xfs_agblock_t	agbno;	/* block number containing inode */
+	xfs_buf_t	*agbp;	/* buffer containing allocation group header */
+	xfs_agino_t	agino;	/* inode number relative to allocation group */
+	xfs_agnumber_t	agno;	/* allocation group number */
+	xfs_agi_t	*agi;	/* allocation group header */
+	xfs_btree_cur_t	*cur;	/* inode btree cursor */
+	int		error;	/* error return value */
+	int		i;	/* result code */
+	int		ilen;	/* inodes in an inode cluster */
+	xfs_mount_t	*mp;	/* mount structure for filesystem */
+	int		off;	/* offset of inode in inode chunk */
+	xfs_inobt_rec_t	rec;	/* btree record */
+
+	mp = tp->t_mountp;
+
+	/*
+	 * Break up inode number into its components.
+	 */
+	agno = XFS_INO_TO_AGNO(mp, inode);
+	if (agno >= mp->m_sb.sb_agcount)  {
+		cmn_err(CE_WARN,
+			"xfs_difree: agno >= mp->m_sb.sb_agcount (%d >= %d) on %s.  Returning EINVAL.",
+			agno, mp->m_sb.sb_agcount, mp->m_fsname);
+		ASSERT(0);
+		return XFS_ERROR(EINVAL);
+	}
+	agino = XFS_INO_TO_AGINO(mp, inode);
+	if (inode != XFS_AGINO_TO_INO(mp, agno, agino))  {
+		cmn_err(CE_WARN,
+			"xfs_difree: inode != XFS_AGINO_TO_INO() (%d != %d) on %s.  Returning EINVAL.",
+			inode, XFS_AGINO_TO_INO(mp, agno, agino), mp->m_fsname);
+		ASSERT(0);
+		return XFS_ERROR(EINVAL);
+	}
+	agbno = XFS_AGINO_TO_AGBNO(mp, agino);
+	if (agbno >= mp->m_sb.sb_agblocks)  {
+		cmn_err(CE_WARN,
+			"xfs_difree: agbno >= mp->m_sb.sb_agblocks (%d >= %d) on %s.  Returning EINVAL.",
+			agbno, mp->m_sb.sb_agblocks, mp->m_fsname);
+		ASSERT(0);
+		return XFS_ERROR(EINVAL);
+	}
+	/*
+	 * Get the allocation group header.
+	 */
+	down_read(&mp->m_peraglock);
+	error = xfs_ialloc_read_agi(mp, tp, agno, &agbp);
+	up_read(&mp->m_peraglock);
+	if (error) {
+		cmn_err(CE_WARN,
+			"xfs_difree: xfs_ialloc_read_agi() returned an error %d on %s.  Returning error.",
+			error, mp->m_fsname);
+		return error;
+	}
+	agi = XFS_BUF_TO_AGI(agbp);
+	ASSERT(INT_GET(agi->agi_magicnum, ARCH_CONVERT) == XFS_AGI_MAGIC);
+	ASSERT(agbno < INT_GET(agi->agi_length, ARCH_CONVERT));
+	/*
+	 * Initialize the cursor.
+	 */
+	cur = xfs_btree_init_cursor(mp, tp, agbp, agno, XFS_BTNUM_INO,
+		(xfs_inode_t *)0, 0);
+#ifdef DEBUG
+	if (cur->bc_nlevels == 1) {
+		int freecount = 0;
+
+		if ((error = xfs_inobt_lookup_ge(cur, 0, 0, 0, &i)))
+			goto error0;
+		do {
+			if ((error = xfs_inobt_get_rec(cur, &rec.ir_startino,
+					&rec.ir_freecount, &rec.ir_free, &i, ARCH_NOCONVERT)))
+				goto error0;
+			if (i) {
+				freecount += rec.ir_freecount;
+				if ((error = xfs_inobt_increment(cur, 0, &i)))
+					goto error0;
+			}
+		} while (i == 1);
+		ASSERT(freecount == INT_GET(agi->agi_freecount, ARCH_CONVERT) ||
+		       XFS_FORCED_SHUTDOWN(mp));
+	}
+#endif
+	/*
+	 * Look for the entry describing this inode.
+	 */
+	if ((error = xfs_inobt_lookup_le(cur, agino, 0, 0, &i))) {
+		cmn_err(CE_WARN,
+			"xfs_difree: xfs_inobt_lookup_le returned()  an error %d on %s.  Returning error.",
+			error, mp->m_fsname);
+		goto error0;
+	}
+	XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+	if ((error = xfs_inobt_get_rec(cur, &rec.ir_startino, &rec.ir_freecount,
+			&rec.ir_free, &i, ARCH_NOCONVERT))) {
+		cmn_err(CE_WARN,
+			"xfs_difree: xfs_inobt_get_rec()  returned an error %d on %s.  Returning error.",
+			error, mp->m_fsname);
+		goto error0;
+	}
+	XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+	/*
+	 * Get the offset in the inode chunk.
+	 */
+	off = agino - rec.ir_startino;
+	ASSERT(off >= 0 && off < XFS_INODES_PER_CHUNK);
+	ASSERT(!XFS_INOBT_IS_FREE(&rec, off, ARCH_NOCONVERT));
+	/*
+	 * Mark the inode free & increment the count.
+	 */
+	XFS_INOBT_SET_FREE(&rec, off, ARCH_NOCONVERT);
+	rec.ir_freecount++;
+
+	/*
+	 * When an inode cluster is free, it becomes elgible for removal
+	 */
+	if ((mp->m_flags & XFS_MOUNT_IDELETE) &&
+	    (rec.ir_freecount == XFS_IALLOC_INODES(mp))) {
+
+		*delete = 1;
+		*first_ino = XFS_AGINO_TO_INO(mp, agno, rec.ir_startino);
+
+		/*
+		 * Remove the inode cluster from the AGI B+Tree, adjust the
+		 * AGI and Superblock inode counts, and mark the disk space
+		 * to be freed when the transaction is committed.
+		 */
+		ilen = XFS_IALLOC_INODES(mp);
+		INT_MOD(agi->agi_count, ARCH_CONVERT, -ilen);
+		INT_MOD(agi->agi_freecount, ARCH_CONVERT, -(ilen - 1));
+		xfs_ialloc_log_agi(tp, agbp, XFS_AGI_COUNT | XFS_AGI_FREECOUNT);
+		down_read(&mp->m_peraglock);
+		mp->m_perag[agno].pagi_freecount -= ilen - 1;
+		up_read(&mp->m_peraglock);
+		xfs_trans_mod_sb(tp, XFS_TRANS_SB_ICOUNT, -ilen);
+		xfs_trans_mod_sb(tp, XFS_TRANS_SB_IFREE, -(ilen - 1));
+
+		if ((error = xfs_inobt_delete(cur, &i))) {
+			cmn_err(CE_WARN, "xfs_difree: xfs_inobt_delete returned an error %d on %s.\n",
+				error, mp->m_fsname);
+			goto error0;
+		}
+
+		xfs_bmap_add_free(XFS_AGB_TO_FSB(mp,
+				agno, XFS_INO_TO_AGBNO(mp,rec.ir_startino)),
+				XFS_IALLOC_BLOCKS(mp), flist, mp);
+	} else {
+		*delete = 0;
+
+		if ((error = xfs_inobt_update(cur, rec.ir_startino, rec.ir_freecount, rec.ir_free))) {
+			cmn_err(CE_WARN,
+				"xfs_difree: xfs_inobt_update()  returned an error %d on %s.  Returning error.",
+				error, mp->m_fsname);
+			goto error0;
+		}
+		/* 
+		 * Change the inode free counts and log the ag/sb changes.
+		 */
+		INT_MOD(agi->agi_freecount, ARCH_CONVERT, 1);
+		xfs_ialloc_log_agi(tp, agbp, XFS_AGI_FREECOUNT);
+		down_read(&mp->m_peraglock);
+		mp->m_perag[agno].pagi_freecount++;
+		up_read(&mp->m_peraglock);
+		xfs_trans_mod_sb(tp, XFS_TRANS_SB_IFREE, 1);
+	}
+
+#ifdef DEBUG
+	if (cur->bc_nlevels == 1) {
+		int freecount = 0;
+
+		if ((error = xfs_inobt_lookup_ge(cur, 0, 0, 0, &i)))
+			goto error0;
+		do {
+			if ((error = xfs_inobt_get_rec(cur,
+					&rec.ir_startino,
+					&rec.ir_freecount,
+					&rec.ir_free, &i,
+					ARCH_NOCONVERT)))
+				goto error0;
+			if (i) {
+				freecount += rec.ir_freecount;
+				if ((error = xfs_inobt_increment(cur, 0, &i)))
+					goto error0;
+			}
+		} while (i == 1);
+		ASSERT(freecount == INT_GET(agi->agi_freecount, ARCH_CONVERT) ||
+		       XFS_FORCED_SHUTDOWN(mp));
+	}
+#endif
+	xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR);
+	return 0;
+
+error0:
+	xfs_btree_del_cursor(cur, XFS_BTREE_ERROR);
+	return error;
+}
+
+/*
+ * Return the location of the inode in bno/off, for mapping it into a buffer.
+ */
+/*ARGSUSED*/
+int
+xfs_dilocate(
+	xfs_mount_t	*mp,	/* file system mount structure */
+	xfs_trans_t	*tp,	/* transaction pointer */
+	xfs_ino_t	ino,	/* inode to locate */
+	xfs_fsblock_t	*bno,	/* output: block containing inode */
+	int		*len,	/* output: num blocks in inode cluster */
+	int		*off,	/* output: index in block of inode */
+	uint		flags)	/* flags concerning inode lookup */
+{
+	xfs_agblock_t	agbno;	/* block number of inode in the alloc group */
+	xfs_buf_t	*agbp;	/* agi buffer */
+	xfs_agino_t	agino;	/* inode number within alloc group */
+	xfs_agnumber_t	agno;	/* allocation group number */
+	int		blks_per_cluster; /* num blocks per inode cluster */
+	xfs_agblock_t	chunk_agbno;	/* first block in inode chunk */
+	xfs_agino_t	chunk_agino;	/* first agino in inode chunk */
+	__int32_t	chunk_cnt;	/* count of free inodes in chunk */
+	xfs_inofree_t	chunk_free;	/* mask of free inodes in chunk */
+	xfs_agblock_t	cluster_agbno;	/* first block in inode cluster */
+	xfs_btree_cur_t	*cur;	/* inode btree cursor */
+	int		error;	/* error code */
+	int		i;	/* temp state */
+	int		offset;	/* index of inode in its buffer */
+	int		offset_agbno;	/* blks from chunk start to inode */
+
+	ASSERT(ino != NULLFSINO);
+	/*
+	 * Split up the inode number into its parts.
+	 */
+	agno = XFS_INO_TO_AGNO(mp, ino);
+	agino = XFS_INO_TO_AGINO(mp, ino);
+	agbno = XFS_AGINO_TO_AGBNO(mp, agino);
+	if (agno >= mp->m_sb.sb_agcount || agbno >= mp->m_sb.sb_agblocks ||
+	    ino != XFS_AGINO_TO_INO(mp, agno, agino)) {
+#ifdef DEBUG
+		if (agno >= mp->m_sb.sb_agcount) {
+			xfs_fs_cmn_err(CE_ALERT, mp,
+					"xfs_dilocate: agno (%d) >= "
+					"mp->m_sb.sb_agcount (%d)",
+					agno,  mp->m_sb.sb_agcount);
+		}
+		if (agbno >= mp->m_sb.sb_agblocks) {
+			xfs_fs_cmn_err(CE_ALERT, mp,
+					"xfs_dilocate: agbno (0x%llx) >= "
+					"mp->m_sb.sb_agblocks (0x%lx)",
+					(unsigned long long) agbno,
+					(unsigned long) mp->m_sb.sb_agblocks);
+		}
+		if (ino != XFS_AGINO_TO_INO(mp, agno, agino)) {
+			xfs_fs_cmn_err(CE_ALERT, mp,
+					"xfs_dilocate: ino (0x%llx) != "
+					"XFS_AGINO_TO_INO(mp, agno, agino) "
+					"(0x%llx)",
+					ino, XFS_AGINO_TO_INO(mp, agno, agino));
+		}
+#endif /* DEBUG */
+		return XFS_ERROR(EINVAL);
+	}
+	if ((mp->m_sb.sb_blocksize >= XFS_INODE_CLUSTER_SIZE(mp)) ||
+	    !(flags & XFS_IMAP_LOOKUP)) {
+		offset = XFS_INO_TO_OFFSET(mp, ino);
+		ASSERT(offset < mp->m_sb.sb_inopblock);
+		*bno = XFS_AGB_TO_FSB(mp, agno, agbno);
+		*off = offset;
+		*len = 1;
+		return 0;
+	}
+	blks_per_cluster = XFS_INODE_CLUSTER_SIZE(mp) >> mp->m_sb.sb_blocklog;
+	if (*bno != NULLFSBLOCK) {
+		offset = XFS_INO_TO_OFFSET(mp, ino);
+		ASSERT(offset < mp->m_sb.sb_inopblock);
+		cluster_agbno = XFS_FSB_TO_AGBNO(mp, *bno);
+		*off = ((agbno - cluster_agbno) * mp->m_sb.sb_inopblock) +
+			offset;
+		*len = blks_per_cluster;
+		return 0;
+	}
+	if (mp->m_inoalign_mask) {
+		offset_agbno = agbno & mp->m_inoalign_mask;
+		chunk_agbno = agbno - offset_agbno;
+	} else {
+		down_read(&mp->m_peraglock);
+		error = xfs_ialloc_read_agi(mp, tp, agno, &agbp);
+		up_read(&mp->m_peraglock);
+		if (error) {
+#ifdef DEBUG
+			xfs_fs_cmn_err(CE_ALERT, mp, "xfs_dilocate: "
+					"xfs_ialloc_read_agi() returned "
+					"error %d, agno %d",
+					error, agno);
+#endif /* DEBUG */
+			return error;
+		}
+		cur = xfs_btree_init_cursor(mp, tp, agbp, agno, XFS_BTNUM_INO,
+			(xfs_inode_t *)0, 0);
+		if ((error = xfs_inobt_lookup_le(cur, agino, 0, 0, &i))) {
+#ifdef DEBUG
+			xfs_fs_cmn_err(CE_ALERT, mp, "xfs_dilocate: "
+					"xfs_inobt_lookup_le() failed");
+#endif /* DEBUG */
+			goto error0;
+		}
+		if ((error = xfs_inobt_get_rec(cur, &chunk_agino, &chunk_cnt,
+				&chunk_free, &i, ARCH_NOCONVERT))) {
+#ifdef DEBUG
+			xfs_fs_cmn_err(CE_ALERT, mp, "xfs_dilocate: "
+					"xfs_inobt_get_rec() failed");
+#endif /* DEBUG */
+			goto error0;
+		}
+		if (i == 0) {
+#ifdef DEBUG
+			xfs_fs_cmn_err(CE_ALERT, mp, "xfs_dilocate: "
+					"xfs_inobt_get_rec() failed");
+#endif /* DEBUG */
+			error = XFS_ERROR(EINVAL);
+		}
+		xfs_trans_brelse(tp, agbp);
+		xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR);
+		if (error)
+			return error;
+		chunk_agbno = XFS_AGINO_TO_AGBNO(mp, chunk_agino);
+		offset_agbno = agbno - chunk_agbno;
+	}
+	ASSERT(agbno >= chunk_agbno);
+	cluster_agbno = chunk_agbno +
+		((offset_agbno / blks_per_cluster) * blks_per_cluster);
+	offset = ((agbno - cluster_agbno) * mp->m_sb.sb_inopblock) +
+		XFS_INO_TO_OFFSET(mp, ino);
+	*bno = XFS_AGB_TO_FSB(mp, agno, cluster_agbno);
+	*off = offset;
+	*len = blks_per_cluster;
+	return 0;
+error0:
+	xfs_trans_brelse(tp, agbp);
+	xfs_btree_del_cursor(cur, XFS_BTREE_ERROR);
+	return error;
+}
+
+/*
+ * Compute and fill in value of m_in_maxlevels.
+ */
+void
+xfs_ialloc_compute_maxlevels(
+	xfs_mount_t	*mp)		/* file system mount structure */
+{
+	int		level;
+	uint		maxblocks;
+	uint		maxleafents;
+	int		minleafrecs;
+	int		minnoderecs;
+
+	maxleafents = (1LL << XFS_INO_AGINO_BITS(mp)) >>
+		XFS_INODES_PER_CHUNK_LOG;
+	minleafrecs = mp->m_alloc_mnr[0];
+	minnoderecs = mp->m_alloc_mnr[1];
+	maxblocks = (maxleafents + minleafrecs - 1) / minleafrecs;
+	for (level = 1; maxblocks > 1; level++)
+		maxblocks = (maxblocks + minnoderecs - 1) / minnoderecs;
+	mp->m_in_maxlevels = level;
+}
+
+/*
+ * Log specified fields for the ag hdr (inode section)
+ */
+void
+xfs_ialloc_log_agi(
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_buf_t	*bp,		/* allocation group header buffer */
+	int		fields)		/* bitmask of fields to log */
+{
+	int			first;		/* first byte number */
+	int			last;		/* last byte number */
+	static const short	offsets[] = {	/* field starting offsets */
+					/* keep in sync with bit definitions */
+		offsetof(xfs_agi_t, agi_magicnum),
+		offsetof(xfs_agi_t, agi_versionnum),
+		offsetof(xfs_agi_t, agi_seqno),
+		offsetof(xfs_agi_t, agi_length),
+		offsetof(xfs_agi_t, agi_count),
+		offsetof(xfs_agi_t, agi_root),
+		offsetof(xfs_agi_t, agi_level),
+		offsetof(xfs_agi_t, agi_freecount),
+		offsetof(xfs_agi_t, agi_newino),
+		offsetof(xfs_agi_t, agi_dirino),
+		offsetof(xfs_agi_t, agi_unlinked),
+		sizeof(xfs_agi_t)
+	};
+#ifdef DEBUG
+	xfs_agi_t		*agi;	/* allocation group header */
+
+	agi = XFS_BUF_TO_AGI(bp);
+	ASSERT(INT_GET(agi->agi_magicnum, ARCH_CONVERT) == XFS_AGI_MAGIC);
+#endif
+	/*
+	 * Compute byte offsets for the first and last fields.
+	 */
+	xfs_btree_offsets(fields, offsets, XFS_AGI_NUM_BITS, &first, &last);
+	/*
+	 * Log the allocation group inode header buffer.
+	 */
+	xfs_trans_log_buf(tp, bp, first, last);
+}
+
+/*
+ * Read in the allocation group header (inode allocation section)
+ */
+int
+xfs_ialloc_read_agi(
+	xfs_mount_t	*mp,		/* file system mount structure */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_agnumber_t	agno,		/* allocation group number */
+	xfs_buf_t	**bpp)		/* allocation group hdr buf */
+{
+	xfs_agi_t	*agi;		/* allocation group header */
+	int		agi_ok;		/* agi is consistent */
+	xfs_buf_t	*bp;		/* allocation group hdr buf */
+	xfs_perag_t	*pag;		/* per allocation group data */
+	int		error;
+
+	ASSERT(agno != NULLAGNUMBER);
+	error = xfs_trans_read_buf(
+			mp, tp, mp->m_ddev_targp,
+			XFS_AG_DADDR(mp, agno, XFS_AGI_DADDR(mp)),
+			XFS_FSS_TO_BB(mp, 1), 0, &bp);
+	if (error)
+		return error;
+	ASSERT(bp && !XFS_BUF_GETERROR(bp));
+
+	/*
+	 * Validate the magic number of the agi block.
+	 */
+	agi = XFS_BUF_TO_AGI(bp);
+	agi_ok =
+		INT_GET(agi->agi_magicnum, ARCH_CONVERT) == XFS_AGI_MAGIC &&
+		XFS_AGI_GOOD_VERSION(
+			INT_GET(agi->agi_versionnum, ARCH_CONVERT));
+	if (unlikely(XFS_TEST_ERROR(!agi_ok, mp, XFS_ERRTAG_IALLOC_READ_AGI,
+			XFS_RANDOM_IALLOC_READ_AGI))) {
+		XFS_CORRUPTION_ERROR("xfs_ialloc_read_agi", XFS_ERRLEVEL_LOW,
+				     mp, agi);
+		xfs_trans_brelse(tp, bp);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+	pag = &mp->m_perag[agno];
+	if (!pag->pagi_init) {
+		pag->pagi_freecount = INT_GET(agi->agi_freecount, ARCH_CONVERT);
+		pag->pagi_init = 1;
+	} else {
+		/*
+		 * It's possible for these to be out of sync if
+		 * we are in the middle of a forced shutdown.
+		 */
+		ASSERT(pag->pagi_freecount ==
+				INT_GET(agi->agi_freecount, ARCH_CONVERT)
+			|| XFS_FORCED_SHUTDOWN(mp));
+	}
+
+#ifdef DEBUG
+	{
+		int	i;
+
+		for (i = 0; i < XFS_AGI_UNLINKED_BUCKETS; i++)
+			ASSERT(!INT_ISZERO(agi->agi_unlinked[i], ARCH_CONVERT));
+	}
+#endif
+
+	XFS_BUF_SET_VTYPE_REF(bp, B_FS_AGI, XFS_AGI_REF);
+	*bpp = bp;
+	return 0;
+}
diff --git a/fs/xfs/xfs_ialloc.h b/fs/xfs/xfs_ialloc.h
new file mode 100644
index 00000000000000..db6d0015cecfa9
--- /dev/null
+++ b/fs/xfs/xfs_ialloc.h
@@ -0,0 +1,184 @@
+/*
+ * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_IALLOC_H__
+#define	__XFS_IALLOC_H__
+
+struct xfs_buf;
+struct xfs_dinode;
+struct xfs_mount;
+struct xfs_trans;
+
+/*
+ * Allocation parameters for inode allocation.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IALLOC_INODES)
+int xfs_ialloc_inodes(struct xfs_mount *mp);
+#define	XFS_IALLOC_INODES(mp)	xfs_ialloc_inodes(mp)
+#else
+#define	XFS_IALLOC_INODES(mp)	((mp)->m_ialloc_inos)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IALLOC_BLOCKS)
+xfs_extlen_t xfs_ialloc_blocks(struct xfs_mount *mp);
+#define	XFS_IALLOC_BLOCKS(mp)	xfs_ialloc_blocks(mp)
+#else
+#define	XFS_IALLOC_BLOCKS(mp)	((mp)->m_ialloc_blks)
+#endif
+
+/*
+ * For small block file systems, move inodes in clusters of this size.
+ * When we don't have a lot of memory, however, we go a bit smaller
+ * to reduce the number of AGI and ialloc btree blocks we need to keep
+ * around for xfs_dilocate().  We choose which one to use in
+ * xfs_mount_int().
+ */
+#define	XFS_INODE_BIG_CLUSTER_SIZE	8192
+#define	XFS_INODE_SMALL_CLUSTER_SIZE	4096
+#define	XFS_INODE_CLUSTER_SIZE(mp)	(mp)->m_inode_cluster_size
+
+/*
+ * Make an inode pointer out of the buffer/offset.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_MAKE_IPTR)
+struct xfs_dinode *xfs_make_iptr(struct xfs_mount *mp, struct xfs_buf *b, int o);
+#define	XFS_MAKE_IPTR(mp,b,o)		xfs_make_iptr(mp,b,o)
+#else
+#define	XFS_MAKE_IPTR(mp,b,o) \
+	((xfs_dinode_t *)(xfs_buf_offset(b, (o) << (mp)->m_sb.sb_inodelog)))
+#endif
+
+/*
+ * Find a free (set) bit in the inode bitmask.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IALLOC_FIND_FREE)
+int xfs_ialloc_find_free(xfs_inofree_t *fp);
+#define	XFS_IALLOC_FIND_FREE(fp)	xfs_ialloc_find_free(fp)
+#else
+#define	XFS_IALLOC_FIND_FREE(fp)	xfs_lowbit64(*(fp))
+#endif
+
+
+#ifdef __KERNEL__
+
+/*
+ * Prototypes for visible xfs_ialloc.c routines.
+ */
+
+/*
+ * Allocate an inode on disk.
+ * Mode is used to tell whether the new inode will need space, and whether
+ * it is a directory.
+ *
+ * To work within the constraint of one allocation per transaction,
+ * xfs_dialloc() is designed to be called twice if it has to do an
+ * allocation to make more free inodes.  If an inode is
+ * available without an allocation, agbp would be set to the current
+ * agbp and alloc_done set to false.
+ * If an allocation needed to be done, agbp would be set to the
+ * inode header of the allocation group and alloc_done set to true.
+ * The caller should then commit the current transaction and allocate a new
+ * transaction.  xfs_dialloc() should then be called again with
+ * the agbp value returned from the previous call.
+ *
+ * Once we successfully pick an inode its number is returned and the
+ * on-disk data structures are updated.  The inode itself is not read
+ * in, since doing so would break ordering constraints with xfs_reclaim.
+ *
+ * *agbp should be set to NULL on the first call, *alloc_done set to FALSE.
+ */
+int					/* error */
+xfs_dialloc(
+	struct xfs_trans *tp,		/* transaction pointer */
+	xfs_ino_t	parent,		/* parent inode (directory) */
+	mode_t		mode,		/* mode bits for new inode */
+	int		okalloc,	/* ok to allocate more space */
+	struct xfs_buf	**agbp,		/* buf for a.g. inode header */
+	boolean_t	*alloc_done,	/* an allocation was done to replenish
+					   the free inodes */
+	xfs_ino_t	*inop);		/* inode number allocated */
+
+/*
+ * Free disk inode.  Carefully avoids touching the incore inode, all
+ * manipulations incore are the caller's responsibility.
+ * The on-disk inode is not changed by this operation, only the
+ * btree (free inode mask) is changed.
+ */
+int					/* error */
+xfs_difree(
+	struct xfs_trans *tp,		/* transaction pointer */
+	xfs_ino_t	inode,		/* inode to be freed */
+	struct xfs_bmap_free *flist,	/* extents to free */
+	int		*delete,	/* set if inode cluster was deleted */
+	xfs_ino_t	*first_ino);	/* first inode in deleted cluster */
+
+/*
+ * Return the location of the inode in bno/len/off,
+ * for mapping it into a buffer.
+ */
+int
+xfs_dilocate(
+	struct xfs_mount *mp,		/* file system mount structure */
+	struct xfs_trans *tp,		/* transaction pointer */
+	xfs_ino_t	ino,		/* inode to locate */
+	xfs_fsblock_t	*bno,		/* output: block containing inode */
+	int		*len,		/* output: num blocks in cluster*/
+	int		*off,		/* output: index in block of inode */
+	uint		flags);		/* flags for inode btree lookup */
+
+/*
+ * Compute and fill in value of m_in_maxlevels.
+ */
+void
+xfs_ialloc_compute_maxlevels(
+	struct xfs_mount *mp);		/* file system mount structure */
+
+/*
+ * Log specified fields for the ag hdr (inode section)
+ */
+void
+xfs_ialloc_log_agi(
+	struct xfs_trans *tp,		/* transaction pointer */
+	struct xfs_buf	*bp,		/* allocation group header buffer */
+	int		fields);	/* bitmask of fields to log */
+
+/*
+ * Read in the allocation group header (inode allocation section)
+ */
+int					/* error */
+xfs_ialloc_read_agi(
+	struct xfs_mount *mp,		/* file system mount structure */
+	struct xfs_trans *tp,		/* transaction pointer */
+	xfs_agnumber_t	agno,		/* allocation group number */
+	struct xfs_buf	**bpp);		/* allocation group hdr buf */
+
+#endif	/* __KERNEL__ */
+
+#endif	/* __XFS_IALLOC_H__ */
diff --git a/fs/xfs/xfs_ialloc_btree.c b/fs/xfs/xfs_ialloc_btree.c
new file mode 100644
index 00000000000000..804fc4bc3711fc
--- /dev/null
+++ b/fs/xfs/xfs_ialloc_btree.c
@@ -0,0 +1,2102 @@
+/*
+ * Copyright (c) 2000-2001 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_alloc.h"
+#include "xfs_error.h"
+
+/*
+ * Inode allocation management for XFS.
+ */
+
+/*
+ * Prototypes for internal functions.
+ */
+
+STATIC void xfs_inobt_log_block(xfs_trans_t *, xfs_buf_t *, int);
+STATIC void xfs_inobt_log_keys(xfs_btree_cur_t *, xfs_buf_t *, int, int);
+STATIC void xfs_inobt_log_ptrs(xfs_btree_cur_t *, xfs_buf_t *, int, int);
+STATIC void xfs_inobt_log_recs(xfs_btree_cur_t *, xfs_buf_t *, int, int);
+STATIC int xfs_inobt_lshift(xfs_btree_cur_t *, int, int *);
+STATIC int xfs_inobt_newroot(xfs_btree_cur_t *, int *);
+STATIC int xfs_inobt_rshift(xfs_btree_cur_t *, int, int *);
+STATIC int xfs_inobt_split(xfs_btree_cur_t *, int, xfs_agblock_t *,
+		xfs_inobt_key_t *, xfs_btree_cur_t **, int *);
+STATIC int xfs_inobt_updkey(xfs_btree_cur_t *, xfs_inobt_key_t *, int);
+
+/*
+ * Internal functions.
+ */
+
+/*
+ * Single level of the xfs_inobt_delete record deletion routine.
+ * Delete record pointed to by cur/level.
+ * Remove the record from its block then rebalance the tree.
+ * Return 0 for error, 1 for done, 2 to go on to the next level.
+ */
+STATIC int				/* error */
+xfs_inobt_delrec(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			level,	/* level removing record from */
+	int			*stat)	/* fail/done/go-on */
+{
+	xfs_buf_t		*agbp;	/* buffer for a.g. inode header */
+	xfs_mount_t		*mp;	/* mount structure */
+	xfs_agi_t		*agi;	/* allocation group inode header */
+	xfs_inobt_block_t	*block;	/* btree block record/key lives in */
+	xfs_agblock_t		bno;	/* btree block number */
+	xfs_buf_t		*bp;	/* buffer for block */
+	int			error;	/* error return value */
+	int			i;	/* loop index */
+	xfs_inobt_key_t		key;	/* kp points here if block is level 0 */
+	xfs_inobt_key_t		*kp = NULL;	/* pointer to btree keys */
+	xfs_agblock_t		lbno;	/* left block's block number */
+	xfs_buf_t		*lbp;	/* left block's buffer pointer */
+	xfs_inobt_block_t	*left;	/* left btree block */
+	xfs_inobt_key_t		*lkp;	/* left block key pointer */
+	xfs_inobt_ptr_t		*lpp;	/* left block address pointer */
+	int			lrecs = 0;	/* number of records in left block */
+	xfs_inobt_rec_t		*lrp;	/* left block record pointer */
+	xfs_inobt_ptr_t		*pp = NULL;	/* pointer to btree addresses */
+	int			ptr;	/* index in btree block for this rec */
+	xfs_agblock_t		rbno;	/* right block's block number */
+	xfs_buf_t		*rbp;	/* right block's buffer pointer */
+	xfs_inobt_block_t	*right;	/* right btree block */
+	xfs_inobt_key_t		*rkp;	/* right block key pointer */
+	xfs_inobt_rec_t		*rp;	/* pointer to btree records */
+	xfs_inobt_ptr_t		*rpp;	/* right block address pointer */
+	int			rrecs = 0;	/* number of records in right block */
+	int			numrecs;
+	xfs_inobt_rec_t		*rrp;	/* right block record pointer */
+	xfs_btree_cur_t		*tcur;	/* temporary btree cursor */
+
+	mp = cur->bc_mp;
+
+	/*
+	 * Get the index of the entry being deleted, check for nothing there.
+	 */
+	ptr = cur->bc_ptrs[level];
+	if (ptr == 0) {
+		*stat = 0;
+		return 0;
+	}
+
+	/*
+	 * Get the buffer & block containing the record or key/ptr.
+	 */
+	bp = cur->bc_bufs[level];
+	block = XFS_BUF_TO_INOBT_BLOCK(bp);
+#ifdef DEBUG
+	if ((error = xfs_btree_check_sblock(cur, block, level, bp)))
+		return error;
+#endif
+	/*
+	 * Fail if we're off the end of the block.
+	 */
+
+	numrecs = INT_GET(block->bb_numrecs, ARCH_CONVERT);
+	if (ptr > numrecs) {
+		*stat = 0;
+		return 0;
+	}
+	/*
+	 * It's a nonleaf.  Excise the key and ptr being deleted, by
+	 * sliding the entries past them down one.
+	 * Log the changed areas of the block.
+	 */
+	if (level > 0) {
+		kp = XFS_INOBT_KEY_ADDR(block, 1, cur);
+		pp = XFS_INOBT_PTR_ADDR(block, 1, cur);
+#ifdef DEBUG
+		for (i = ptr; i < numrecs; i++) {
+			if ((error = xfs_btree_check_sptr(cur, INT_GET(pp[i], ARCH_CONVERT), level)))
+				return error;
+		}
+#endif
+		if (ptr < numrecs) {
+			memmove(&kp[ptr - 1], &kp[ptr],
+				(numrecs - ptr) * sizeof(*kp));
+			memmove(&pp[ptr - 1], &pp[ptr],
+				(numrecs - ptr) * sizeof(*kp));
+			xfs_inobt_log_keys(cur, bp, ptr, numrecs - 1);
+			xfs_inobt_log_ptrs(cur, bp, ptr, numrecs - 1);
+		}
+	}
+	/*
+	 * It's a leaf.  Excise the record being deleted, by sliding the
+	 * entries past it down one.  Log the changed areas of the block.
+	 */
+	else {
+		rp = XFS_INOBT_REC_ADDR(block, 1, cur);
+		if (ptr < numrecs) {
+			memmove(&rp[ptr - 1], &rp[ptr],
+				(numrecs - ptr) * sizeof(*rp));
+			xfs_inobt_log_recs(cur, bp, ptr, numrecs - 1);
+		}
+		/*
+		 * If it's the first record in the block, we'll need a key
+		 * structure to pass up to the next level (updkey).
+		 */
+		if (ptr == 1) {
+			key.ir_startino = rp->ir_startino;
+			kp = &key;
+		}
+	}
+	/*
+	 * Decrement and log the number of entries in the block.
+	 */
+	numrecs--;
+	INT_SET(block->bb_numrecs, ARCH_CONVERT, numrecs);
+	xfs_inobt_log_block(cur->bc_tp, bp, XFS_BB_NUMRECS);
+	/*
+	 * Is this the root level?  If so, we're almost done.
+	 */
+	if (level == cur->bc_nlevels - 1) {
+		/*
+		 * If this is the root level,
+		 * and there's only one entry left,
+		 * and it's NOT the leaf level,
+		 * then we can get rid of this level.
+		 */
+		if (numrecs == 1 && level > 0) {
+			agbp = cur->bc_private.i.agbp;
+			agi = XFS_BUF_TO_AGI(agbp);
+			/*
+			 * pp is still set to the first pointer in the block.
+			 * Make it the new root of the btree.
+			 */
+			bno = INT_GET(agi->agi_root, ARCH_CONVERT);
+			agi->agi_root = *pp;
+			INT_MOD(agi->agi_level, ARCH_CONVERT, -1);
+			/*
+			 * Free the block.
+			 */
+			if ((error = xfs_free_extent(cur->bc_tp,
+				XFS_AGB_TO_FSB(mp, cur->bc_private.i.agno, bno), 1)))
+				return error;
+			xfs_trans_binval(cur->bc_tp, bp);
+			xfs_ialloc_log_agi(cur->bc_tp, agbp,
+				XFS_AGI_ROOT | XFS_AGI_LEVEL);
+			/*
+			 * Update the cursor so there's one fewer level.
+			 */
+			cur->bc_bufs[level] = NULL;
+			cur->bc_nlevels--;
+		} else if (level > 0 &&
+			   (error = xfs_inobt_decrement(cur, level, &i)))
+			return error;
+		*stat = 1;
+		return 0;
+	}
+	/*
+	 * If we deleted the leftmost entry in the block, update the
+	 * key values above us in the tree.
+	 */
+	if (ptr == 1 && (error = xfs_inobt_updkey(cur, kp, level + 1)))
+		return error;
+	/*
+	 * If the number of records remaining in the block is at least
+	 * the minimum, we're done.
+	 */
+	if (numrecs >= XFS_INOBT_BLOCK_MINRECS(level, cur)) {
+		if (level > 0 &&
+		    (error = xfs_inobt_decrement(cur, level, &i)))
+			return error;
+		*stat = 1;
+		return 0;
+	}
+	/*
+	 * Otherwise, we have to move some records around to keep the
+	 * tree balanced.  Look at the left and right sibling blocks to
+	 * see if we can re-balance by moving only one record.
+	 */
+	rbno = INT_GET(block->bb_rightsib, ARCH_CONVERT);
+	lbno = INT_GET(block->bb_leftsib, ARCH_CONVERT);
+	bno = NULLAGBLOCK;
+	ASSERT(rbno != NULLAGBLOCK || lbno != NULLAGBLOCK);
+	/*
+	 * Duplicate the cursor so our btree manipulations here won't
+	 * disrupt the next level up.
+	 */
+	if ((error = xfs_btree_dup_cursor(cur, &tcur)))
+		return error;
+	/*
+	 * If there's a right sibling, see if it's ok to shift an entry
+	 * out of it.
+	 */
+	if (rbno != NULLAGBLOCK) {
+		/*
+		 * Move the temp cursor to the last entry in the next block.
+		 * Actually any entry but the first would suffice.
+		 */
+		i = xfs_btree_lastrec(tcur, level);
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		if ((error = xfs_inobt_increment(tcur, level, &i)))
+			goto error0;
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		i = xfs_btree_lastrec(tcur, level);
+		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
+		/*
+		 * Grab a pointer to the block.
+		 */
+		rbp = tcur->bc_bufs[level];
+		right = XFS_BUF_TO_INOBT_BLOCK(rbp);
+#ifdef DEBUG
+		if ((error = xfs_btree_check_sblock(cur, right, level, rbp)))
+			goto error0;
+#endif
+		/*
+		 * Grab the current block number, for future use.
+		 */
+		bno = INT_GET(right->bb_leftsib, ARCH_CONVERT);
+		/*
+		 * If right block is full enough so that removing one entry
+		 * won't make it too empty, and left-shifting an entry out
+		 * of right to us works, we're done.
+		 */
+		if (INT_GET(right->bb_numrecs, ARCH_CONVERT) - 1 >=
+		     XFS_INOBT_BLOCK_MINRECS(level, cur)) {
+			if ((error = xfs_inobt_lshift(tcur, level, &i)))
+				goto error0;
+			if (i) {
+				ASSERT(INT_GET(block->bb_numrecs, ARCH_CONVERT) >=
+				       XFS_INOBT_BLOCK_MINRECS(level, cur));
+				xfs_btree_del_cursor(tcur,
+						     XFS_BTREE_NOERROR);
+				if (level > 0 &&
+				    (error = xfs_inobt_decrement(cur, level,
+						&i)))
+					return error;
+				*stat = 1;
+				return 0;
+			}
+		}
+		/*
+		 * Otherwise, grab the number of records in right for
+		 * future reference, and fix up the temp cursor to point
+		 * to our block again (last record).
+		 */
+		rrecs = INT_GET(right->bb_numrecs, ARCH_CONVERT);
+		if (lbno != NULLAGBLOCK) {
+			xfs_btree_firstrec(tcur, level);
+			if ((error = xfs_inobt_decrement(tcur, level, &i)))
+				goto error0;
+		}
+	}
+	/*
+	 * If there's a left sibling, see if it's ok to shift an entry
+	 * out of it.
+	 */
+	if (lbno != NULLAGBLOCK) {
+		/*
+		 * Move the temp cursor to the first entry in the
+		 * previous block.
+		 */
+		xfs_btree_firstrec(tcur, level);
+		if ((error = xfs_inobt_decrement(tcur, level, &i)))
+			goto error0;
+		xfs_btree_firstrec(tcur, level);
+		/*
+		 * Grab a pointer to the block.
+		 */
+		lbp = tcur->bc_bufs[level];
+		left = XFS_BUF_TO_INOBT_BLOCK(lbp);
+#ifdef DEBUG
+		if ((error = xfs_btree_check_sblock(cur, left, level, lbp)))
+			goto error0;
+#endif
+		/*
+		 * Grab the current block number, for future use.
+		 */
+		bno = INT_GET(left->bb_rightsib, ARCH_CONVERT);
+		/*
+		 * If left block is full enough so that removing one entry
+		 * won't make it too empty, and right-shifting an entry out
+		 * of left to us works, we're done.
+		 */
+		if (INT_GET(left->bb_numrecs, ARCH_CONVERT) - 1 >=
+		     XFS_INOBT_BLOCK_MINRECS(level, cur)) {
+			if ((error = xfs_inobt_rshift(tcur, level, &i)))
+				goto error0;
+			if (i) {
+				ASSERT(INT_GET(block->bb_numrecs, ARCH_CONVERT) >=
+				       XFS_INOBT_BLOCK_MINRECS(level, cur));
+				xfs_btree_del_cursor(tcur,
+						     XFS_BTREE_NOERROR);
+				if (level == 0)
+					cur->bc_ptrs[0]++;
+				*stat = 1;
+				return 0;
+			}
+		}
+		/*
+		 * Otherwise, grab the number of records in right for
+		 * future reference.
+		 */
+		lrecs = INT_GET(left->bb_numrecs, ARCH_CONVERT);
+	}
+	/*
+	 * Delete the temp cursor, we're done with it.
+	 */
+	xfs_btree_del_cursor(tcur, XFS_BTREE_NOERROR);
+	/*
+	 * If here, we need to do a join to keep the tree balanced.
+	 */
+	ASSERT(bno != NULLAGBLOCK);
+	/*
+	 * See if we can join with the left neighbor block.
+	 */
+	if (lbno != NULLAGBLOCK &&
+	    lrecs + numrecs <= XFS_INOBT_BLOCK_MAXRECS(level, cur)) {
+		/*
+		 * Set "right" to be the starting block,
+		 * "left" to be the left neighbor.
+		 */
+		rbno = bno;
+		right = block;
+		rrecs = INT_GET(right->bb_numrecs, ARCH_CONVERT);
+		rbp = bp;
+		if ((error = xfs_btree_read_bufs(mp, cur->bc_tp,
+				cur->bc_private.i.agno, lbno, 0, &lbp,
+				XFS_INO_BTREE_REF)))
+			return error;
+		left = XFS_BUF_TO_INOBT_BLOCK(lbp);
+		lrecs = INT_GET(left->bb_numrecs, ARCH_CONVERT);
+		if ((error = xfs_btree_check_sblock(cur, left, level, lbp)))
+			return error;
+	}
+	/*
+	 * If that won't work, see if we can join with the right neighbor block.
+	 */
+	else if (rbno != NULLAGBLOCK &&
+		 rrecs + numrecs <= XFS_INOBT_BLOCK_MAXRECS(level, cur)) {
+		/*
+		 * Set "left" to be the starting block,
+		 * "right" to be the right neighbor.
+		 */
+		lbno = bno;
+		left = block;
+		lrecs = INT_GET(left->bb_numrecs, ARCH_CONVERT);
+		lbp = bp;
+		if ((error = xfs_btree_read_bufs(mp, cur->bc_tp,
+				cur->bc_private.i.agno, rbno, 0, &rbp,
+				XFS_INO_BTREE_REF)))
+			return error;
+		right = XFS_BUF_TO_INOBT_BLOCK(rbp);
+		rrecs = INT_GET(right->bb_numrecs, ARCH_CONVERT);
+		if ((error = xfs_btree_check_sblock(cur, right, level, rbp)))
+			return error;
+	}
+	/*
+	 * Otherwise, we can't fix the imbalance.
+	 * Just return.  This is probably a logic error, but it's not fatal.
+	 */
+	else {
+		if (level > 0 && (error = xfs_inobt_decrement(cur, level, &i)))
+			return error;
+		*stat = 1;
+		return 0;
+	}
+	/*
+	 * We're now going to join "left" and "right" by moving all the stuff
+	 * in "right" to "left" and deleting "right".
+	 */
+	if (level > 0) {
+		/*
+		 * It's a non-leaf.  Move keys and pointers.
+		 */
+		lkp = XFS_INOBT_KEY_ADDR(left, lrecs + 1, cur);
+		lpp = XFS_INOBT_PTR_ADDR(left, lrecs + 1, cur);
+		rkp = XFS_INOBT_KEY_ADDR(right, 1, cur);
+		rpp = XFS_INOBT_PTR_ADDR(right, 1, cur);
+#ifdef DEBUG
+		for (i = 0; i < rrecs; i++) {
+			if ((error = xfs_btree_check_sptr(cur, INT_GET(rpp[i], ARCH_CONVERT), level)))
+				return error;
+		}
+#endif
+		memcpy(lkp, rkp, rrecs * sizeof(*lkp));
+		memcpy(lpp, rpp, rrecs * sizeof(*lpp));
+		xfs_inobt_log_keys(cur, lbp, lrecs + 1, lrecs + rrecs);
+		xfs_inobt_log_ptrs(cur, lbp, lrecs + 1, lrecs + rrecs);
+	} else {
+		/*
+		 * It's a leaf.  Move records.
+		 */
+		lrp = XFS_INOBT_REC_ADDR(left, lrecs + 1, cur);
+		rrp = XFS_INOBT_REC_ADDR(right, 1, cur);
+		memcpy(lrp, rrp, rrecs * sizeof(*lrp));
+		xfs_inobt_log_recs(cur, lbp, lrecs + 1, lrecs + rrecs);
+	}
+	/*
+	 * If we joined with the left neighbor, set the buffer in the
+	 * cursor to the left block, and fix up the index.
+	 */
+	if (bp != lbp) {
+		xfs_btree_setbuf(cur, level, lbp);
+		cur->bc_ptrs[level] += lrecs;
+	}
+	/*
+	 * If we joined with the right neighbor and there's a level above
+	 * us, increment the cursor at that level.
+	 */
+	else if (level + 1 < cur->bc_nlevels &&
+		 (error = xfs_alloc_increment(cur, level + 1, &i)))
+		return error;
+	/*
+	 * Fix up the number of records in the surviving block.
+	 */
+	lrecs += rrecs;
+	INT_SET(left->bb_numrecs, ARCH_CONVERT, lrecs);
+	/*
+	 * Fix up the right block pointer in the surviving block, and log it.
+	 */
+	left->bb_rightsib = right->bb_rightsib;
+	xfs_inobt_log_block(cur->bc_tp, lbp, XFS_BB_NUMRECS | XFS_BB_RIGHTSIB);
+	/*
+	 * If there is a right sibling now, make it point to the
+	 * remaining block.
+	 */
+	if (INT_GET(left->bb_rightsib, ARCH_CONVERT) != NULLAGBLOCK) {
+		xfs_inobt_block_t	*rrblock;
+		xfs_buf_t		*rrbp;
+
+		if ((error = xfs_btree_read_bufs(mp, cur->bc_tp,
+				cur->bc_private.i.agno, INT_GET(left->bb_rightsib, ARCH_CONVERT), 0,
+				&rrbp, XFS_INO_BTREE_REF)))
+			return error;
+		rrblock = XFS_BUF_TO_INOBT_BLOCK(rrbp);
+		if ((error = xfs_btree_check_sblock(cur, rrblock, level, rrbp)))
+			return error;
+		INT_SET(rrblock->bb_leftsib, ARCH_CONVERT, lbno);
+		xfs_inobt_log_block(cur->bc_tp, rrbp, XFS_BB_LEFTSIB);
+	}
+	/*
+	 * Free the deleting block.
+	 */
+	if ((error = xfs_free_extent(cur->bc_tp, XFS_AGB_TO_FSB(mp,
+				     cur->bc_private.i.agno, rbno), 1)))
+		return error;
+	xfs_trans_binval(cur->bc_tp, rbp);
+	/*
+	 * Readjust the ptr at this level if it's not a leaf, since it's
+	 * still pointing at the deletion point, which makes the cursor
+	 * inconsistent.  If this makes the ptr 0, the caller fixes it up.
+	 * We can't use decrement because it would change the next level up.
+	 */
+	if (level > 0)
+		cur->bc_ptrs[level]--;
+	/*
+	 * Return value means the next level up has something to do.
+	 */
+	*stat = 2;
+	return 0;
+
+error0:
+	xfs_btree_del_cursor(tcur, XFS_BTREE_ERROR);
+	return error;
+}
+
+/*
+ * Insert one record/level.  Return information to the caller
+ * allowing the next level up to proceed if necessary.
+ */
+STATIC int				/* error */
+xfs_inobt_insrec(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			level,	/* level to insert record at */
+	xfs_agblock_t		*bnop,	/* i/o: block number inserted */
+	xfs_inobt_rec_t		*recp,	/* i/o: record data inserted */
+	xfs_btree_cur_t		**curp,	/* output: new cursor replacing cur */
+	int			*stat)	/* success/failure */
+{
+	xfs_inobt_block_t	*block;	/* btree block record/key lives in */
+	xfs_buf_t		*bp;	/* buffer for block */
+	int			error;	/* error return value */
+	int			i;	/* loop index */
+	xfs_inobt_key_t		key;	/* key value being inserted */
+	xfs_inobt_key_t		*kp=NULL;	/* pointer to btree keys */
+	xfs_agblock_t		nbno;	/* block number of allocated block */
+	xfs_btree_cur_t		*ncur;	/* new cursor to be used at next lvl */
+	xfs_inobt_key_t		nkey;	/* new key value, from split */
+	xfs_inobt_rec_t		nrec;	/* new record value, for caller */
+	int			numrecs;
+	int			optr;	/* old ptr value */
+	xfs_inobt_ptr_t		*pp;	/* pointer to btree addresses */
+	int			ptr;	/* index in btree block for this rec */
+	xfs_inobt_rec_t		*rp=NULL;	/* pointer to btree records */
+
+	/*
+	 * If we made it to the root level, allocate a new root block
+	 * and we're done.
+	 */
+	if (level >= cur->bc_nlevels) {
+		error = xfs_inobt_newroot(cur, &i);
+		*bnop = NULLAGBLOCK;
+		*stat = i;
+		return error;
+	}
+	/*
+	 * Make a key out of the record data to be inserted, and save it.
+	 */
+	key.ir_startino = recp->ir_startino; /* INT_: direct copy */
+	optr = ptr = cur->bc_ptrs[level];
+	/*
+	 * If we're off the left edge, return failure.
+	 */
+	if (ptr == 0) {
+		*stat = 0;
+		return 0;
+	}
+	/*
+	 * Get pointers to the btree buffer and block.
+	 */
+	bp = cur->bc_bufs[level];
+	block = XFS_BUF_TO_INOBT_BLOCK(bp);
+	numrecs = INT_GET(block->bb_numrecs, ARCH_CONVERT);
+#ifdef DEBUG
+	if ((error = xfs_btree_check_sblock(cur, block, level, bp)))
+		return error;
+	/*
+	 * Check that the new entry is being inserted in the right place.
+	 */
+	if (ptr <= numrecs) {
+		if (level == 0) {
+			rp = XFS_INOBT_REC_ADDR(block, ptr, cur);
+			xfs_btree_check_rec(cur->bc_btnum, recp, rp);
+		} else {
+			kp = XFS_INOBT_KEY_ADDR(block, ptr, cur);
+			xfs_btree_check_key(cur->bc_btnum, &key, kp);
+		}
+	}
+#endif
+	nbno = NULLAGBLOCK;
+	ncur = (xfs_btree_cur_t *)0;
+	/*
+	 * If the block is full, we can't insert the new entry until we
+	 * make the block un-full.
+	 */
+	if (numrecs == XFS_INOBT_BLOCK_MAXRECS(level, cur)) {
+		/*
+		 * First, try shifting an entry to the right neighbor.
+		 */
+		if ((error = xfs_inobt_rshift(cur, level, &i)))
+			return error;
+		if (i) {
+			/* nothing */
+		}
+		/*
+		 * Next, try shifting an entry to the left neighbor.
+		 */
+		else {
+			if ((error = xfs_inobt_lshift(cur, level, &i)))
+				return error;
+			if (i) {
+				optr = ptr = cur->bc_ptrs[level];
+			} else {
+				/*
+				 * Next, try splitting the current block
+				 * in half. If this works we have to
+				 * re-set our variables because
+				 * we could be in a different block now.
+				 */
+				if ((error = xfs_inobt_split(cur, level, &nbno,
+						&nkey, &ncur, &i)))
+					return error;
+				if (i) {
+					bp = cur->bc_bufs[level];
+					block = XFS_BUF_TO_INOBT_BLOCK(bp);
+#ifdef DEBUG
+					if ((error = xfs_btree_check_sblock(cur,
+							block, level, bp)))
+						return error;
+#endif
+					ptr = cur->bc_ptrs[level];
+					nrec.ir_startino = nkey.ir_startino; /* INT_: direct copy */
+				} else {
+					/*
+					 * Otherwise the insert fails.
+					 */
+					*stat = 0;
+					return 0;
+				}
+			}
+		}
+	}
+	/*
+	 * At this point we know there's room for our new entry in the block
+	 * we're pointing at.
+	 */
+	numrecs = INT_GET(block->bb_numrecs, ARCH_CONVERT);
+	if (level > 0) {
+		/*
+		 * It's a non-leaf entry.  Make a hole for the new data
+		 * in the key and ptr regions of the block.
+		 */
+		kp = XFS_INOBT_KEY_ADDR(block, 1, cur);
+		pp = XFS_INOBT_PTR_ADDR(block, 1, cur);
+#ifdef DEBUG
+		for (i = numrecs; i >= ptr; i--) {
+			if ((error = xfs_btree_check_sptr(cur, INT_GET(pp[i - 1], ARCH_CONVERT), level)))
+				return error;
+		}
+#endif
+		memmove(&kp[ptr], &kp[ptr - 1],
+			(numrecs - ptr + 1) * sizeof(*kp));
+		memmove(&pp[ptr], &pp[ptr - 1],
+			(numrecs - ptr + 1) * sizeof(*pp));
+		/*
+		 * Now stuff the new data in, bump numrecs and log the new data.
+		 */
+#ifdef DEBUG
+		if ((error = xfs_btree_check_sptr(cur, *bnop, level)))
+			return error;
+#endif
+		kp[ptr - 1] = key; /* INT_: struct copy */
+		INT_SET(pp[ptr - 1], ARCH_CONVERT, *bnop);
+		numrecs++;
+		INT_SET(block->bb_numrecs, ARCH_CONVERT, numrecs);
+		xfs_inobt_log_keys(cur, bp, ptr, numrecs);
+		xfs_inobt_log_ptrs(cur, bp, ptr, numrecs);
+	} else {
+		/*
+		 * It's a leaf entry.  Make a hole for the new record.
+		 */
+		rp = XFS_INOBT_REC_ADDR(block, 1, cur);
+		memmove(&rp[ptr], &rp[ptr - 1],
+			(numrecs - ptr + 1) * sizeof(*rp));
+		/*
+		 * Now stuff the new record in, bump numrecs
+		 * and log the new data.
+		 */
+		rp[ptr - 1] = *recp; /* INT_: struct copy */
+		numrecs++;
+		INT_SET(block->bb_numrecs, ARCH_CONVERT, numrecs);
+		xfs_inobt_log_recs(cur, bp, ptr, numrecs);
+	}
+	/*
+	 * Log the new number of records in the btree header.
+	 */
+	xfs_inobt_log_block(cur->bc_tp, bp, XFS_BB_NUMRECS);
+#ifdef DEBUG
+	/*
+	 * Check that the key/record is in the right place, now.
+	 */
+	if (ptr < numrecs) {
+		if (level == 0)
+			xfs_btree_check_rec(cur->bc_btnum, rp + ptr - 1,
+				rp + ptr);
+		else
+			xfs_btree_check_key(cur->bc_btnum, kp + ptr - 1,
+				kp + ptr);
+	}
+#endif
+	/*
+	 * If we inserted at the start of a block, update the parents' keys.
+	 */
+	if (optr == 1 && (error = xfs_inobt_updkey(cur, &key, level + 1)))
+		return error;
+	/*
+	 * Return the new block number, if any.
+	 * If there is one, give back a record value and a cursor too.
+	 */
+	*bnop = nbno;
+	if (nbno != NULLAGBLOCK) {
+		*recp = nrec; /* INT_: struct copy */
+		*curp = ncur;
+	}
+	*stat = 1;
+	return 0;
+}
+
+/*
+ * Log header fields from a btree block.
+ */
+STATIC void
+xfs_inobt_log_block(
+	xfs_trans_t		*tp,	/* transaction pointer */
+	xfs_buf_t		*bp,	/* buffer containing btree block */
+	int			fields)	/* mask of fields: XFS_BB_... */
+{
+	int			first;	/* first byte offset logged */
+	int			last;	/* last byte offset logged */
+	static const short	offsets[] = {	/* table of offsets */
+		offsetof(xfs_inobt_block_t, bb_magic),
+		offsetof(xfs_inobt_block_t, bb_level),
+		offsetof(xfs_inobt_block_t, bb_numrecs),
+		offsetof(xfs_inobt_block_t, bb_leftsib),
+		offsetof(xfs_inobt_block_t, bb_rightsib),
+		sizeof(xfs_inobt_block_t)
+	};
+
+	xfs_btree_offsets(fields, offsets, XFS_BB_NUM_BITS, &first, &last);
+	xfs_trans_log_buf(tp, bp, first, last);
+}
+
+/*
+ * Log keys from a btree block (nonleaf).
+ */
+STATIC void
+xfs_inobt_log_keys(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	xfs_buf_t		*bp,	/* buffer containing btree block */
+	int			kfirst,	/* index of first key to log */
+	int			klast)	/* index of last key to log */
+{
+	xfs_inobt_block_t	*block;	/* btree block to log from */
+	int			first;	/* first byte offset logged */
+	xfs_inobt_key_t		*kp;	/* key pointer in btree block */
+	int			last;	/* last byte offset logged */
+
+	block = XFS_BUF_TO_INOBT_BLOCK(bp);
+	kp = XFS_INOBT_KEY_ADDR(block, 1, cur);
+	first = (int)((xfs_caddr_t)&kp[kfirst - 1] - (xfs_caddr_t)block);
+	last = (int)(((xfs_caddr_t)&kp[klast] - 1) - (xfs_caddr_t)block);
+	xfs_trans_log_buf(cur->bc_tp, bp, first, last);
+}
+
+/*
+ * Log block pointer fields from a btree block (nonleaf).
+ */
+STATIC void
+xfs_inobt_log_ptrs(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	xfs_buf_t		*bp,	/* buffer containing btree block */
+	int			pfirst,	/* index of first pointer to log */
+	int			plast)	/* index of last pointer to log */
+{
+	xfs_inobt_block_t	*block;	/* btree block to log from */
+	int			first;	/* first byte offset logged */
+	int			last;	/* last byte offset logged */
+	xfs_inobt_ptr_t		*pp;	/* block-pointer pointer in btree blk */
+
+	block = XFS_BUF_TO_INOBT_BLOCK(bp);
+	pp = XFS_INOBT_PTR_ADDR(block, 1, cur);
+	first = (int)((xfs_caddr_t)&pp[pfirst - 1] - (xfs_caddr_t)block);
+	last = (int)(((xfs_caddr_t)&pp[plast] - 1) - (xfs_caddr_t)block);
+	xfs_trans_log_buf(cur->bc_tp, bp, first, last);
+}
+
+/*
+ * Log records from a btree block (leaf).
+ */
+STATIC void
+xfs_inobt_log_recs(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	xfs_buf_t		*bp,	/* buffer containing btree block */
+	int			rfirst,	/* index of first record to log */
+	int			rlast)	/* index of last record to log */
+{
+	xfs_inobt_block_t	*block;	/* btree block to log from */
+	int			first;	/* first byte offset logged */
+	int			last;	/* last byte offset logged */
+	xfs_inobt_rec_t		*rp;	/* record pointer for btree block */
+
+	block = XFS_BUF_TO_INOBT_BLOCK(bp);
+	rp = XFS_INOBT_REC_ADDR(block, 1, cur);
+	first = (int)((xfs_caddr_t)&rp[rfirst - 1] - (xfs_caddr_t)block);
+	last = (int)(((xfs_caddr_t)&rp[rlast] - 1) - (xfs_caddr_t)block);
+	xfs_trans_log_buf(cur->bc_tp, bp, first, last);
+}
+
+/*
+ * Lookup the record.  The cursor is made to point to it, based on dir.
+ * Return 0 if can't find any such record, 1 for success.
+ */
+STATIC int				/* error */
+xfs_inobt_lookup(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	xfs_lookup_t		dir,	/* <=, ==, or >= */
+	int			*stat)	/* success/failure */
+{
+	xfs_agblock_t		agbno;	/* a.g. relative btree block number */
+	xfs_agnumber_t		agno;	/* allocation group number */
+	xfs_inobt_block_t	*block=NULL;	/* current btree block */
+	__int64_t		diff;	/* difference for the current key */
+	int			error;	/* error return value */
+	int			keyno=0;	/* current key number */
+	int			level;	/* level in the btree */
+	xfs_mount_t		*mp;	/* file system mount point */
+
+	/*
+	 * Get the allocation group header, and the root block number.
+	 */
+	mp = cur->bc_mp;
+	{
+		xfs_agi_t	*agi;	/* a.g. inode header */
+
+		agi = XFS_BUF_TO_AGI(cur->bc_private.i.agbp);
+		agno = INT_GET(agi->agi_seqno, ARCH_CONVERT);
+		agbno = INT_GET(agi->agi_root, ARCH_CONVERT);
+	}
+	/*
+	 * Iterate over each level in the btree, starting at the root.
+	 * For each level above the leaves, find the key we need, based
+	 * on the lookup record, then follow the corresponding block
+	 * pointer down to the next level.
+	 */
+	for (level = cur->bc_nlevels - 1, diff = 1; level >= 0; level--) {
+		xfs_buf_t	*bp;	/* buffer pointer for btree block */
+		xfs_daddr_t	d;	/* disk address of btree block */
+
+		/*
+		 * Get the disk address we're looking for.
+		 */
+		d = XFS_AGB_TO_DADDR(mp, agno, agbno);
+		/*
+		 * If the old buffer at this level is for a different block,
+		 * throw it away, otherwise just use it.
+		 */
+		bp = cur->bc_bufs[level];
+		if (bp && XFS_BUF_ADDR(bp) != d)
+			bp = (xfs_buf_t *)0;
+		if (!bp) {
+			/*
+			 * Need to get a new buffer.  Read it, then
+			 * set it in the cursor, releasing the old one.
+			 */
+			if ((error = xfs_btree_read_bufs(mp, cur->bc_tp,
+					agno, agbno, 0, &bp, XFS_INO_BTREE_REF)))
+				return error;
+			xfs_btree_setbuf(cur, level, bp);
+			/*
+			 * Point to the btree block, now that we have the buffer
+			 */
+			block = XFS_BUF_TO_INOBT_BLOCK(bp);
+			if ((error = xfs_btree_check_sblock(cur, block, level,
+					bp)))
+				return error;
+		} else
+			block = XFS_BUF_TO_INOBT_BLOCK(bp);
+		/*
+		 * If we already had a key match at a higher level, we know
+		 * we need to use the first entry in this block.
+		 */
+		if (diff == 0)
+			keyno = 1;
+		/*
+		 * Otherwise we need to search this block.  Do a binary search.
+		 */
+		else {
+			int		high;	/* high entry number */
+			xfs_inobt_key_t	*kkbase=NULL;/* base of keys in block */
+			xfs_inobt_rec_t	*krbase=NULL;/* base of records in block */
+			int		low;	/* low entry number */
+
+			/*
+			 * Get a pointer to keys or records.
+			 */
+			if (level > 0)
+				kkbase = XFS_INOBT_KEY_ADDR(block, 1, cur);
+			else
+				krbase = XFS_INOBT_REC_ADDR(block, 1, cur);
+			/*
+			 * Set low and high entry numbers, 1-based.
+			 */
+			low = 1;
+			if (!(high = INT_GET(block->bb_numrecs, ARCH_CONVERT))) {
+				/*
+				 * If the block is empty, the tree must
+				 * be an empty leaf.
+				 */
+				ASSERT(level == 0 && cur->bc_nlevels == 1);
+				cur->bc_ptrs[0] = dir != XFS_LOOKUP_LE;
+				*stat = 0;
+				return 0;
+			}
+			/*
+			 * Binary search the block.
+			 */
+			while (low <= high) {
+				xfs_agino_t	startino;	/* key value */
+
+				/*
+				 * keyno is average of low and high.
+				 */
+				keyno = (low + high) >> 1;
+				/*
+				 * Get startino.
+				 */
+				if (level > 0) {
+					xfs_inobt_key_t	*kkp;
+
+					kkp = kkbase + keyno - 1;
+					startino = INT_GET(kkp->ir_startino, ARCH_CONVERT);
+				} else {
+					xfs_inobt_rec_t	*krp;
+
+					krp = krbase + keyno - 1;
+					startino = INT_GET(krp->ir_startino, ARCH_CONVERT);
+				}
+				/*
+				 * Compute difference to get next direction.
+				 */
+				diff = (__int64_t)
+					startino - cur->bc_rec.i.ir_startino;
+				/*
+				 * Less than, move right.
+				 */
+				if (diff < 0)
+					low = keyno + 1;
+				/*
+				 * Greater than, move left.
+				 */
+				else if (diff > 0)
+					high = keyno - 1;
+				/*
+				 * Equal, we're done.
+				 */
+				else
+					break;
+			}
+		}
+		/*
+		 * If there are more levels, set up for the next level
+		 * by getting the block number and filling in the cursor.
+		 */
+		if (level > 0) {
+			/*
+			 * If we moved left, need the previous key number,
+			 * unless there isn't one.
+			 */
+			if (diff > 0 && --keyno < 1)
+				keyno = 1;
+			agbno = INT_GET(*XFS_INOBT_PTR_ADDR(block, keyno, cur), ARCH_CONVERT);
+#ifdef DEBUG
+			if ((error = xfs_btree_check_sptr(cur, agbno, level)))
+				return error;
+#endif
+			cur->bc_ptrs[level] = keyno;
+		}
+	}
+	/*
+	 * Done with the search.
+	 * See if we need to adjust the results.
+	 */
+	if (dir != XFS_LOOKUP_LE && diff < 0) {
+		keyno++;
+		/*
+		 * If ge search and we went off the end of the block, but it's
+		 * not the last block, we're in the wrong block.
+		 */
+		if (dir == XFS_LOOKUP_GE &&
+		    keyno > INT_GET(block->bb_numrecs, ARCH_CONVERT) &&
+		    INT_GET(block->bb_rightsib, ARCH_CONVERT) != NULLAGBLOCK) {
+			int	i;
+
+			cur->bc_ptrs[0] = keyno;
+			if ((error = xfs_inobt_increment(cur, 0, &i)))
+				return error;
+			ASSERT(i == 1);
+			*stat = 1;
+			return 0;
+		}
+	}
+	else if (dir == XFS_LOOKUP_LE && diff > 0)
+		keyno--;
+	cur->bc_ptrs[0] = keyno;
+	/*
+	 * Return if we succeeded or not.
+	 */
+	if (keyno == 0 || keyno > INT_GET(block->bb_numrecs, ARCH_CONVERT))
+		*stat = 0;
+	else
+		*stat = ((dir != XFS_LOOKUP_EQ) || (diff == 0));
+	return 0;
+}
+
+/*
+ * Move 1 record left from cur/level if possible.
+ * Update cur to reflect the new path.
+ */
+STATIC int				/* error */
+xfs_inobt_lshift(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			level,	/* level to shift record on */
+	int			*stat)	/* success/failure */
+{
+	int			error;	/* error return value */
+#ifdef DEBUG
+	int			i;	/* loop index */
+#endif
+	xfs_inobt_key_t		key;	/* key value for leaf level upward */
+	xfs_buf_t		*lbp;	/* buffer for left neighbor block */
+	xfs_inobt_block_t	*left;	/* left neighbor btree block */
+	xfs_inobt_key_t		*lkp=NULL;	/* key pointer for left block */
+	xfs_inobt_ptr_t		*lpp;	/* address pointer for left block */
+	xfs_inobt_rec_t		*lrp=NULL;	/* record pointer for left block */
+	int			nrec;	/* new number of left block entries */
+	xfs_buf_t		*rbp;	/* buffer for right (current) block */
+	xfs_inobt_block_t	*right;	/* right (current) btree block */
+	xfs_inobt_key_t		*rkp=NULL;	/* key pointer for right block */
+	xfs_inobt_ptr_t		*rpp=NULL;	/* address pointer for right block */
+	xfs_inobt_rec_t		*rrp=NULL;	/* record pointer for right block */
+
+	/*
+	 * Set up variables for this block as "right".
+	 */
+	rbp = cur->bc_bufs[level];
+	right = XFS_BUF_TO_INOBT_BLOCK(rbp);
+#ifdef DEBUG
+	if ((error = xfs_btree_check_sblock(cur, right, level, rbp)))
+		return error;
+#endif
+	/*
+	 * If we've got no left sibling then we can't shift an entry left.
+	 */
+	if (INT_GET(right->bb_leftsib, ARCH_CONVERT) == NULLAGBLOCK) {
+		*stat = 0;
+		return 0;
+	}
+	/*
+	 * If the cursor entry is the one that would be moved, don't
+	 * do it... it's too complicated.
+	 */
+	if (cur->bc_ptrs[level] <= 1) {
+		*stat = 0;
+		return 0;
+	}
+	/*
+	 * Set up the left neighbor as "left".
+	 */
+	if ((error = xfs_btree_read_bufs(cur->bc_mp, cur->bc_tp,
+			cur->bc_private.i.agno, INT_GET(right->bb_leftsib, ARCH_CONVERT), 0, &lbp,
+			XFS_INO_BTREE_REF)))
+		return error;
+	left = XFS_BUF_TO_INOBT_BLOCK(lbp);
+	if ((error = xfs_btree_check_sblock(cur, left, level, lbp)))
+		return error;
+	/*
+	 * If it's full, it can't take another entry.
+	 */
+	if (INT_GET(left->bb_numrecs, ARCH_CONVERT) == XFS_INOBT_BLOCK_MAXRECS(level, cur)) {
+		*stat = 0;
+		return 0;
+	}
+	nrec = INT_GET(left->bb_numrecs, ARCH_CONVERT) + 1;
+	/*
+	 * If non-leaf, copy a key and a ptr to the left block.
+	 */
+	if (level > 0) {
+		lkp = XFS_INOBT_KEY_ADDR(left, nrec, cur);
+		rkp = XFS_INOBT_KEY_ADDR(right, 1, cur);
+		*lkp = *rkp;
+		xfs_inobt_log_keys(cur, lbp, nrec, nrec);
+		lpp = XFS_INOBT_PTR_ADDR(left, nrec, cur);
+		rpp = XFS_INOBT_PTR_ADDR(right, 1, cur);
+#ifdef DEBUG
+		if ((error = xfs_btree_check_sptr(cur, INT_GET(*rpp, ARCH_CONVERT), level)))
+			return error;
+#endif
+		*lpp = *rpp; /* INT_: no-change copy */
+		xfs_inobt_log_ptrs(cur, lbp, nrec, nrec);
+	}
+	/*
+	 * If leaf, copy a record to the left block.
+	 */
+	else {
+		lrp = XFS_INOBT_REC_ADDR(left, nrec, cur);
+		rrp = XFS_INOBT_REC_ADDR(right, 1, cur);
+		*lrp = *rrp;
+		xfs_inobt_log_recs(cur, lbp, nrec, nrec);
+	}
+	/*
+	 * Bump and log left's numrecs, decrement and log right's numrecs.
+	 */
+	INT_MOD(left->bb_numrecs, ARCH_CONVERT, +1);
+	xfs_inobt_log_block(cur->bc_tp, lbp, XFS_BB_NUMRECS);
+#ifdef DEBUG
+	if (level > 0)
+		xfs_btree_check_key(cur->bc_btnum, lkp - 1, lkp);
+	else
+		xfs_btree_check_rec(cur->bc_btnum, lrp - 1, lrp);
+#endif
+	INT_MOD(right->bb_numrecs, ARCH_CONVERT, -1);
+	xfs_inobt_log_block(cur->bc_tp, rbp, XFS_BB_NUMRECS);
+	/*
+	 * Slide the contents of right down one entry.
+	 */
+	if (level > 0) {
+#ifdef DEBUG
+		for (i = 0; i < INT_GET(right->bb_numrecs, ARCH_CONVERT); i++) {
+			if ((error = xfs_btree_check_sptr(cur, INT_GET(rpp[i + 1], ARCH_CONVERT),
+					level)))
+				return error;
+		}
+#endif
+		memmove(rkp, rkp + 1, INT_GET(right->bb_numrecs, ARCH_CONVERT) * sizeof(*rkp));
+		memmove(rpp, rpp + 1, INT_GET(right->bb_numrecs, ARCH_CONVERT) * sizeof(*rpp));
+		xfs_inobt_log_keys(cur, rbp, 1, INT_GET(right->bb_numrecs, ARCH_CONVERT));
+		xfs_inobt_log_ptrs(cur, rbp, 1, INT_GET(right->bb_numrecs, ARCH_CONVERT));
+	} else {
+		memmove(rrp, rrp + 1, INT_GET(right->bb_numrecs, ARCH_CONVERT) * sizeof(*rrp));
+		xfs_inobt_log_recs(cur, rbp, 1, INT_GET(right->bb_numrecs, ARCH_CONVERT));
+		key.ir_startino = rrp->ir_startino; /* INT_: direct copy */
+		rkp = &key;
+	}
+	/*
+	 * Update the parent key values of right.
+	 */
+	if ((error = xfs_inobt_updkey(cur, rkp, level + 1)))
+		return error;
+	/*
+	 * Slide the cursor value left one.
+	 */
+	cur->bc_ptrs[level]--;
+	*stat = 1;
+	return 0;
+}
+
+/*
+ * Allocate a new root block, fill it in.
+ */
+STATIC int				/* error */
+xfs_inobt_newroot(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			*stat)	/* success/failure */
+{
+	xfs_agi_t		*agi;	/* a.g. inode header */
+	xfs_alloc_arg_t		args;	/* allocation argument structure */
+	xfs_inobt_block_t	*block;	/* one half of the old root block */
+	xfs_buf_t		*bp;	/* buffer containing block */
+	int			error;	/* error return value */
+	xfs_inobt_key_t		*kp;	/* btree key pointer */
+	xfs_agblock_t		lbno;	/* left block number */
+	xfs_buf_t		*lbp;	/* left buffer pointer */
+	xfs_inobt_block_t	*left;	/* left btree block */
+	xfs_buf_t		*nbp;	/* new (root) buffer */
+	xfs_inobt_block_t	*new;	/* new (root) btree block */
+	int			nptr;	/* new value for key index, 1 or 2 */
+	xfs_inobt_ptr_t		*pp;	/* btree address pointer */
+	xfs_agblock_t		rbno;	/* right block number */
+	xfs_buf_t		*rbp;	/* right buffer pointer */
+	xfs_inobt_block_t	*right;	/* right btree block */
+	xfs_inobt_rec_t		*rp;	/* btree record pointer */
+
+	ASSERT(cur->bc_nlevels < XFS_IN_MAXLEVELS(cur->bc_mp));
+
+	/*
+	 * Get a block & a buffer.
+	 */
+	agi = XFS_BUF_TO_AGI(cur->bc_private.i.agbp);
+	args.tp = cur->bc_tp;
+	args.mp = cur->bc_mp;
+	args.fsbno = XFS_AGB_TO_FSB(args.mp, cur->bc_private.i.agno,
+		INT_GET(agi->agi_root, ARCH_CONVERT));
+	args.mod = args.minleft = args.alignment = args.total = args.wasdel =
+		args.isfl = args.userdata = args.minalignslop = 0;
+	args.minlen = args.maxlen = args.prod = 1;
+	args.type = XFS_ALLOCTYPE_NEAR_BNO;
+	if ((error = xfs_alloc_vextent(&args)))
+		return error;
+	/*
+	 * None available, we fail.
+	 */
+	if (args.fsbno == NULLFSBLOCK) {
+		*stat = 0;
+		return 0;
+	}
+	ASSERT(args.len == 1);
+	nbp = xfs_btree_get_bufs(args.mp, args.tp, args.agno, args.agbno, 0);
+	new = XFS_BUF_TO_INOBT_BLOCK(nbp);
+	/*
+	 * Set the root data in the a.g. inode structure.
+	 */
+	INT_SET(agi->agi_root, ARCH_CONVERT, args.agbno);
+	INT_MOD(agi->agi_level, ARCH_CONVERT, 1);
+	xfs_ialloc_log_agi(args.tp, cur->bc_private.i.agbp,
+		XFS_AGI_ROOT | XFS_AGI_LEVEL);
+	/*
+	 * At the previous root level there are now two blocks: the old
+	 * root, and the new block generated when it was split.
+	 * We don't know which one the cursor is pointing at, so we
+	 * set up variables "left" and "right" for each case.
+	 */
+	bp = cur->bc_bufs[cur->bc_nlevels - 1];
+	block = XFS_BUF_TO_INOBT_BLOCK(bp);
+#ifdef DEBUG
+	if ((error = xfs_btree_check_sblock(cur, block, cur->bc_nlevels - 1, bp)))
+		return error;
+#endif
+	if (INT_GET(block->bb_rightsib, ARCH_CONVERT) != NULLAGBLOCK) {
+		/*
+		 * Our block is left, pick up the right block.
+		 */
+		lbp = bp;
+		lbno = XFS_DADDR_TO_AGBNO(args.mp, XFS_BUF_ADDR(lbp));
+		left = block;
+		rbno = INT_GET(left->bb_rightsib, ARCH_CONVERT);
+		if ((error = xfs_btree_read_bufs(args.mp, args.tp, args.agno,
+				rbno, 0, &rbp, XFS_INO_BTREE_REF)))
+			return error;
+		bp = rbp;
+		right = XFS_BUF_TO_INOBT_BLOCK(rbp);
+		if ((error = xfs_btree_check_sblock(cur, right,
+				cur->bc_nlevels - 1, rbp)))
+			return error;
+		nptr = 1;
+	} else {
+		/*
+		 * Our block is right, pick up the left block.
+		 */
+		rbp = bp;
+		rbno = XFS_DADDR_TO_AGBNO(args.mp, XFS_BUF_ADDR(rbp));
+		right = block;
+		lbno = INT_GET(right->bb_leftsib, ARCH_CONVERT);
+		if ((error = xfs_btree_read_bufs(args.mp, args.tp, args.agno,
+				lbno, 0, &lbp, XFS_INO_BTREE_REF)))
+			return error;
+		bp = lbp;
+		left = XFS_BUF_TO_INOBT_BLOCK(lbp);
+		if ((error = xfs_btree_check_sblock(cur, left,
+				cur->bc_nlevels - 1, lbp)))
+			return error;
+		nptr = 2;
+	}
+	/*
+	 * Fill in the new block's btree header and log it.
+	 */
+	INT_SET(new->bb_magic, ARCH_CONVERT, xfs_magics[cur->bc_btnum]);
+	INT_SET(new->bb_level, ARCH_CONVERT, (__uint16_t)cur->bc_nlevels);
+	INT_SET(new->bb_numrecs, ARCH_CONVERT, 2);
+	INT_SET(new->bb_leftsib, ARCH_CONVERT, NULLAGBLOCK);
+	INT_SET(new->bb_rightsib, ARCH_CONVERT, NULLAGBLOCK);
+	xfs_inobt_log_block(args.tp, nbp, XFS_BB_ALL_BITS);
+	ASSERT(lbno != NULLAGBLOCK && rbno != NULLAGBLOCK);
+	/*
+	 * Fill in the key data in the new root.
+	 */
+	kp = XFS_INOBT_KEY_ADDR(new, 1, cur);
+	if (INT_GET(left->bb_level, ARCH_CONVERT) > 0) {
+		kp[0] = *XFS_INOBT_KEY_ADDR(left, 1, cur); /* INT_: struct copy */
+		kp[1] = *XFS_INOBT_KEY_ADDR(right, 1, cur); /* INT_: struct copy */
+	} else {
+		rp = XFS_INOBT_REC_ADDR(left, 1, cur);
+		INT_COPY(kp[0].ir_startino, rp->ir_startino, ARCH_CONVERT);
+		rp = XFS_INOBT_REC_ADDR(right, 1, cur);
+		INT_COPY(kp[1].ir_startino, rp->ir_startino, ARCH_CONVERT);
+	}
+	xfs_inobt_log_keys(cur, nbp, 1, 2);
+	/*
+	 * Fill in the pointer data in the new root.
+	 */
+	pp = XFS_INOBT_PTR_ADDR(new, 1, cur);
+	INT_SET(pp[0], ARCH_CONVERT, lbno);
+	INT_SET(pp[1], ARCH_CONVERT, rbno);
+	xfs_inobt_log_ptrs(cur, nbp, 1, 2);
+	/*
+	 * Fix up the cursor.
+	 */
+	xfs_btree_setbuf(cur, cur->bc_nlevels, nbp);
+	cur->bc_ptrs[cur->bc_nlevels] = nptr;
+	cur->bc_nlevels++;
+	*stat = 1;
+	return 0;
+}
+
+/*
+ * Move 1 record right from cur/level if possible.
+ * Update cur to reflect the new path.
+ */
+STATIC int				/* error */
+xfs_inobt_rshift(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			level,	/* level to shift record on */
+	int			*stat)	/* success/failure */
+{
+	int			error;	/* error return value */
+	int			i;	/* loop index */
+	xfs_inobt_key_t		key;	/* key value for leaf level upward */
+	xfs_buf_t		*lbp;	/* buffer for left (current) block */
+	xfs_inobt_block_t	*left;	/* left (current) btree block */
+	xfs_inobt_key_t		*lkp;	/* key pointer for left block */
+	xfs_inobt_ptr_t		*lpp;	/* address pointer for left block */
+	xfs_inobt_rec_t		*lrp;	/* record pointer for left block */
+	xfs_buf_t		*rbp;	/* buffer for right neighbor block */
+	xfs_inobt_block_t	*right;	/* right neighbor btree block */
+	xfs_inobt_key_t		*rkp;	/* key pointer for right block */
+	xfs_inobt_ptr_t		*rpp;	/* address pointer for right block */
+	xfs_inobt_rec_t		*rrp=NULL;	/* record pointer for right block */
+	xfs_btree_cur_t		*tcur;	/* temporary cursor */
+
+	/*
+	 * Set up variables for this block as "left".
+	 */
+	lbp = cur->bc_bufs[level];
+	left = XFS_BUF_TO_INOBT_BLOCK(lbp);
+#ifdef DEBUG
+	if ((error = xfs_btree_check_sblock(cur, left, level, lbp)))
+		return error;
+#endif
+	/*
+	 * If we've got no right sibling then we can't shift an entry right.
+	 */
+	if (INT_GET(left->bb_rightsib, ARCH_CONVERT) == NULLAGBLOCK) {
+		*stat = 0;
+		return 0;
+	}
+	/*
+	 * If the cursor entry is the one that would be moved, don't
+	 * do it... it's too complicated.
+	 */
+	if (cur->bc_ptrs[level] >= INT_GET(left->bb_numrecs, ARCH_CONVERT)) {
+		*stat = 0;
+		return 0;
+	}
+	/*
+	 * Set up the right neighbor as "right".
+	 */
+	if ((error = xfs_btree_read_bufs(cur->bc_mp, cur->bc_tp,
+			cur->bc_private.i.agno, INT_GET(left->bb_rightsib, ARCH_CONVERT), 0, &rbp,
+			XFS_INO_BTREE_REF)))
+		return error;
+	right = XFS_BUF_TO_INOBT_BLOCK(rbp);
+	if ((error = xfs_btree_check_sblock(cur, right, level, rbp)))
+		return error;
+	/*
+	 * If it's full, it can't take another entry.
+	 */
+	if (INT_GET(right->bb_numrecs, ARCH_CONVERT) == XFS_INOBT_BLOCK_MAXRECS(level, cur)) {
+		*stat = 0;
+		return 0;
+	}
+	/*
+	 * Make a hole at the start of the right neighbor block, then
+	 * copy the last left block entry to the hole.
+	 */
+	if (level > 0) {
+		lkp = XFS_INOBT_KEY_ADDR(left, INT_GET(left->bb_numrecs, ARCH_CONVERT), cur);
+		lpp = XFS_INOBT_PTR_ADDR(left, INT_GET(left->bb_numrecs, ARCH_CONVERT), cur);
+		rkp = XFS_INOBT_KEY_ADDR(right, 1, cur);
+		rpp = XFS_INOBT_PTR_ADDR(right, 1, cur);
+#ifdef DEBUG
+		for (i = INT_GET(right->bb_numrecs, ARCH_CONVERT) - 1; i >= 0; i--) {
+			if ((error = xfs_btree_check_sptr(cur, INT_GET(rpp[i], ARCH_CONVERT), level)))
+				return error;
+		}
+#endif
+		memmove(rkp + 1, rkp, INT_GET(right->bb_numrecs, ARCH_CONVERT) * sizeof(*rkp));
+		memmove(rpp + 1, rpp, INT_GET(right->bb_numrecs, ARCH_CONVERT) * sizeof(*rpp));
+#ifdef DEBUG
+		if ((error = xfs_btree_check_sptr(cur, INT_GET(*lpp, ARCH_CONVERT), level)))
+			return error;
+#endif
+		*rkp = *lkp; /* INT_: no change copy */
+		*rpp = *lpp; /* INT_: no change copy */
+		xfs_inobt_log_keys(cur, rbp, 1, INT_GET(right->bb_numrecs, ARCH_CONVERT) + 1);
+		xfs_inobt_log_ptrs(cur, rbp, 1, INT_GET(right->bb_numrecs, ARCH_CONVERT) + 1);
+	} else {
+		lrp = XFS_INOBT_REC_ADDR(left, INT_GET(left->bb_numrecs, ARCH_CONVERT), cur);
+		rrp = XFS_INOBT_REC_ADDR(right, 1, cur);
+		memmove(rrp + 1, rrp, INT_GET(right->bb_numrecs, ARCH_CONVERT) * sizeof(*rrp));
+		*rrp = *lrp;
+		xfs_inobt_log_recs(cur, rbp, 1, INT_GET(right->bb_numrecs, ARCH_CONVERT) + 1);
+		key.ir_startino = rrp->ir_startino; /* INT_: direct copy */
+		rkp = &key;
+	}
+	/*
+	 * Decrement and log left's numrecs, bump and log right's numrecs.
+	 */
+	INT_MOD(left->bb_numrecs, ARCH_CONVERT, -1);
+	xfs_inobt_log_block(cur->bc_tp, lbp, XFS_BB_NUMRECS);
+	INT_MOD(right->bb_numrecs, ARCH_CONVERT, +1);
+#ifdef DEBUG
+	if (level > 0)
+		xfs_btree_check_key(cur->bc_btnum, rkp, rkp + 1);
+	else
+		xfs_btree_check_rec(cur->bc_btnum, rrp, rrp + 1);
+#endif
+	xfs_inobt_log_block(cur->bc_tp, rbp, XFS_BB_NUMRECS);
+	/*
+	 * Using a temporary cursor, update the parent key values of the
+	 * block on the right.
+	 */
+	if ((error = xfs_btree_dup_cursor(cur, &tcur)))
+		return error;
+	xfs_btree_lastrec(tcur, level);
+	if ((error = xfs_inobt_increment(tcur, level, &i)) ||
+	    (error = xfs_inobt_updkey(tcur, rkp, level + 1))) {
+		xfs_btree_del_cursor(tcur, XFS_BTREE_ERROR);
+		return error;
+	}
+	xfs_btree_del_cursor(tcur, XFS_BTREE_NOERROR);
+	*stat = 1;
+	return 0;
+}
+
+/*
+ * Split cur/level block in half.
+ * Return new block number and its first record (to be inserted into parent).
+ */
+STATIC int				/* error */
+xfs_inobt_split(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			level,	/* level to split */
+	xfs_agblock_t		*bnop,	/* output: block number allocated */
+	xfs_inobt_key_t		*keyp,	/* output: first key of new block */
+	xfs_btree_cur_t		**curp,	/* output: new cursor */
+	int			*stat)	/* success/failure */
+{
+	xfs_alloc_arg_t		args;	/* allocation argument structure */
+	int			error;	/* error return value */
+	int			i;	/* loop index/record number */
+	xfs_agblock_t		lbno;	/* left (current) block number */
+	xfs_buf_t		*lbp;	/* buffer for left block */
+	xfs_inobt_block_t	*left;	/* left (current) btree block */
+	xfs_inobt_key_t		*lkp;	/* left btree key pointer */
+	xfs_inobt_ptr_t		*lpp;	/* left btree address pointer */
+	xfs_inobt_rec_t		*lrp;	/* left btree record pointer */
+	xfs_buf_t		*rbp;	/* buffer for right block */
+	xfs_inobt_block_t	*right;	/* right (new) btree block */
+	xfs_inobt_key_t		*rkp;	/* right btree key pointer */
+	xfs_inobt_ptr_t		*rpp;	/* right btree address pointer */
+	xfs_inobt_rec_t		*rrp;	/* right btree record pointer */
+
+	/*
+	 * Set up left block (current one).
+	 */
+	lbp = cur->bc_bufs[level];
+	args.tp = cur->bc_tp;
+	args.mp = cur->bc_mp;
+	lbno = XFS_DADDR_TO_AGBNO(args.mp, XFS_BUF_ADDR(lbp));
+	/*
+	 * Allocate the new block.
+	 * If we can't do it, we're toast.  Give up.
+	 */
+	args.fsbno = XFS_AGB_TO_FSB(args.mp, cur->bc_private.i.agno, lbno);
+	args.mod = args.minleft = args.alignment = args.total = args.wasdel =
+		args.isfl = args.userdata = args.minalignslop = 0;
+	args.minlen = args.maxlen = args.prod = 1;
+	args.type = XFS_ALLOCTYPE_NEAR_BNO;
+	if ((error = xfs_alloc_vextent(&args)))
+		return error;
+	if (args.fsbno == NULLFSBLOCK) {
+		*stat = 0;
+		return 0;
+	}
+	ASSERT(args.len == 1);
+	rbp = xfs_btree_get_bufs(args.mp, args.tp, args.agno, args.agbno, 0);
+	/*
+	 * Set up the new block as "right".
+	 */
+	right = XFS_BUF_TO_INOBT_BLOCK(rbp);
+	/*
+	 * "Left" is the current (according to the cursor) block.
+	 */
+	left = XFS_BUF_TO_INOBT_BLOCK(lbp);
+#ifdef DEBUG
+	if ((error = xfs_btree_check_sblock(cur, left, level, lbp)))
+		return error;
+#endif
+	/*
+	 * Fill in the btree header for the new block.
+	 */
+	INT_SET(right->bb_magic, ARCH_CONVERT, xfs_magics[cur->bc_btnum]);
+	right->bb_level = left->bb_level; /* INT_: direct copy */
+	INT_SET(right->bb_numrecs, ARCH_CONVERT, (__uint16_t)(INT_GET(left->bb_numrecs, ARCH_CONVERT) / 2));
+	/*
+	 * Make sure that if there's an odd number of entries now, that
+	 * each new block will have the same number of entries.
+	 */
+	if ((INT_GET(left->bb_numrecs, ARCH_CONVERT) & 1) &&
+	    cur->bc_ptrs[level] <= INT_GET(right->bb_numrecs, ARCH_CONVERT) + 1)
+		INT_MOD(right->bb_numrecs, ARCH_CONVERT, +1);
+	i = INT_GET(left->bb_numrecs, ARCH_CONVERT) - INT_GET(right->bb_numrecs, ARCH_CONVERT) + 1;
+	/*
+	 * For non-leaf blocks, copy keys and addresses over to the new block.
+	 */
+	if (level > 0) {
+		lkp = XFS_INOBT_KEY_ADDR(left, i, cur);
+		lpp = XFS_INOBT_PTR_ADDR(left, i, cur);
+		rkp = XFS_INOBT_KEY_ADDR(right, 1, cur);
+		rpp = XFS_INOBT_PTR_ADDR(right, 1, cur);
+#ifdef DEBUG
+		for (i = 0; i < INT_GET(right->bb_numrecs, ARCH_CONVERT); i++) {
+			if ((error = xfs_btree_check_sptr(cur, INT_GET(lpp[i], ARCH_CONVERT), level)))
+				return error;
+		}
+#endif
+		memcpy(rkp, lkp, INT_GET(right->bb_numrecs, ARCH_CONVERT) * sizeof(*rkp));
+		memcpy(rpp, lpp, INT_GET(right->bb_numrecs, ARCH_CONVERT) * sizeof(*rpp));
+		xfs_inobt_log_keys(cur, rbp, 1, INT_GET(right->bb_numrecs, ARCH_CONVERT));
+		xfs_inobt_log_ptrs(cur, rbp, 1, INT_GET(right->bb_numrecs, ARCH_CONVERT));
+		*keyp = *rkp;
+	}
+	/*
+	 * For leaf blocks, copy records over to the new block.
+	 */
+	else {
+		lrp = XFS_INOBT_REC_ADDR(left, i, cur);
+		rrp = XFS_INOBT_REC_ADDR(right, 1, cur);
+		memcpy(rrp, lrp, INT_GET(right->bb_numrecs, ARCH_CONVERT) * sizeof(*rrp));
+		xfs_inobt_log_recs(cur, rbp, 1, INT_GET(right->bb_numrecs, ARCH_CONVERT));
+		keyp->ir_startino = rrp->ir_startino; /* INT_: direct copy */
+	}
+	/*
+	 * Find the left block number by looking in the buffer.
+	 * Adjust numrecs, sibling pointers.
+	 */
+	INT_MOD(left->bb_numrecs, ARCH_CONVERT, -(INT_GET(right->bb_numrecs, ARCH_CONVERT)));
+	right->bb_rightsib = left->bb_rightsib; /* INT_: direct copy */
+	INT_SET(left->bb_rightsib, ARCH_CONVERT, args.agbno);
+	INT_SET(right->bb_leftsib, ARCH_CONVERT, lbno);
+	xfs_inobt_log_block(args.tp, rbp, XFS_BB_ALL_BITS);
+	xfs_inobt_log_block(args.tp, lbp, XFS_BB_NUMRECS | XFS_BB_RIGHTSIB);
+	/*
+	 * If there's a block to the new block's right, make that block
+	 * point back to right instead of to left.
+	 */
+	if (INT_GET(right->bb_rightsib, ARCH_CONVERT) != NULLAGBLOCK) {
+		xfs_inobt_block_t	*rrblock;	/* rr btree block */
+		xfs_buf_t		*rrbp;		/* buffer for rrblock */
+
+		if ((error = xfs_btree_read_bufs(args.mp, args.tp, args.agno,
+				INT_GET(right->bb_rightsib, ARCH_CONVERT), 0, &rrbp,
+				XFS_INO_BTREE_REF)))
+			return error;
+		rrblock = XFS_BUF_TO_INOBT_BLOCK(rrbp);
+		if ((error = xfs_btree_check_sblock(cur, rrblock, level, rrbp)))
+			return error;
+		INT_SET(rrblock->bb_leftsib, ARCH_CONVERT, args.agbno);
+		xfs_inobt_log_block(args.tp, rrbp, XFS_BB_LEFTSIB);
+	}
+	/*
+	 * If the cursor is really in the right block, move it there.
+	 * If it's just pointing past the last entry in left, then we'll
+	 * insert there, so don't change anything in that case.
+	 */
+	if (cur->bc_ptrs[level] > INT_GET(left->bb_numrecs, ARCH_CONVERT) + 1) {
+		xfs_btree_setbuf(cur, level, rbp);
+		cur->bc_ptrs[level] -= INT_GET(left->bb_numrecs, ARCH_CONVERT);
+	}
+	/*
+	 * If there are more levels, we'll need another cursor which refers
+	 * the right block, no matter where this cursor was.
+	 */
+	if (level + 1 < cur->bc_nlevels) {
+		if ((error = xfs_btree_dup_cursor(cur, curp)))
+			return error;
+		(*curp)->bc_ptrs[level + 1]++;
+	}
+	*bnop = args.agbno;
+	*stat = 1;
+	return 0;
+}
+
+/*
+ * Update keys at all levels from here to the root along the cursor's path.
+ */
+STATIC int				/* error */
+xfs_inobt_updkey(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	xfs_inobt_key_t		*keyp,	/* new key value to update to */
+	int			level)	/* starting level for update */
+{
+	int			ptr;	/* index of key in block */
+
+	/*
+	 * Go up the tree from this level toward the root.
+	 * At each level, update the key value to the value input.
+	 * Stop when we reach a level where the cursor isn't pointing
+	 * at the first entry in the block.
+	 */
+	for (ptr = 1; ptr == 1 && level < cur->bc_nlevels; level++) {
+		xfs_buf_t		*bp;	/* buffer for block */
+		xfs_inobt_block_t	*block;	/* btree block */
+#ifdef DEBUG
+		int			error;	/* error return value */
+#endif
+		xfs_inobt_key_t		*kp;	/* ptr to btree block keys */
+
+		bp = cur->bc_bufs[level];
+		block = XFS_BUF_TO_INOBT_BLOCK(bp);
+#ifdef DEBUG
+		if ((error = xfs_btree_check_sblock(cur, block, level, bp)))
+			return error;
+#endif
+		ptr = cur->bc_ptrs[level];
+		kp = XFS_INOBT_KEY_ADDR(block, ptr, cur);
+		*kp = *keyp;
+		xfs_inobt_log_keys(cur, bp, ptr, ptr);
+	}
+	return 0;
+}
+
+/*
+ * Externally visible routines.
+ */
+
+/*
+ * Decrement cursor by one record at the level.
+ * For nonzero levels the leaf-ward information is untouched.
+ */
+int					/* error */
+xfs_inobt_decrement(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			level,	/* level in btree, 0 is leaf */
+	int			*stat)	/* success/failure */
+{
+	xfs_inobt_block_t	*block;	/* btree block */
+	int			error;
+	int			lev;	/* btree level */
+
+	ASSERT(level < cur->bc_nlevels);
+	/*
+	 * Read-ahead to the left at this level.
+	 */
+	xfs_btree_readahead(cur, level, XFS_BTCUR_LEFTRA);
+	/*
+	 * Decrement the ptr at this level.  If we're still in the block
+	 * then we're done.
+	 */
+	if (--cur->bc_ptrs[level] > 0) {
+		*stat = 1;
+		return 0;
+	}
+	/*
+	 * Get a pointer to the btree block.
+	 */
+	block = XFS_BUF_TO_INOBT_BLOCK(cur->bc_bufs[level]);
+#ifdef DEBUG
+	if ((error = xfs_btree_check_sblock(cur, block, level,
+			cur->bc_bufs[level])))
+		return error;
+#endif
+	/*
+	 * If we just went off the left edge of the tree, return failure.
+	 */
+	if (INT_GET(block->bb_leftsib, ARCH_CONVERT) == NULLAGBLOCK) {
+		*stat = 0;
+		return 0;
+	}
+	/*
+	 * March up the tree decrementing pointers.
+	 * Stop when we don't go off the left edge of a block.
+	 */
+	for (lev = level + 1; lev < cur->bc_nlevels; lev++) {
+		if (--cur->bc_ptrs[lev] > 0)
+			break;
+		/*
+		 * Read-ahead the left block, we're going to read it
+		 * in the next loop.
+		 */
+		xfs_btree_readahead(cur, lev, XFS_BTCUR_LEFTRA);
+	}
+	/*
+	 * If we went off the root then we are seriously confused.
+	 */
+	ASSERT(lev < cur->bc_nlevels);
+	/*
+	 * Now walk back down the tree, fixing up the cursor's buffer
+	 * pointers and key numbers.
+	 */
+	for (block = XFS_BUF_TO_INOBT_BLOCK(cur->bc_bufs[lev]); lev > level; ) {
+		xfs_agblock_t	agbno;	/* block number of btree block */
+		xfs_buf_t	*bp;	/* buffer containing btree block */
+
+		agbno = INT_GET(*XFS_INOBT_PTR_ADDR(block, cur->bc_ptrs[lev], cur), ARCH_CONVERT);
+		if ((error = xfs_btree_read_bufs(cur->bc_mp, cur->bc_tp,
+				cur->bc_private.i.agno, agbno, 0, &bp,
+				XFS_INO_BTREE_REF)))
+			return error;
+		lev--;
+		xfs_btree_setbuf(cur, lev, bp);
+		block = XFS_BUF_TO_INOBT_BLOCK(bp);
+		if ((error = xfs_btree_check_sblock(cur, block, lev, bp)))
+			return error;
+		cur->bc_ptrs[lev] = INT_GET(block->bb_numrecs, ARCH_CONVERT);
+	}
+	*stat = 1;
+	return 0;
+}
+
+/*
+ * Delete the record pointed to by cur.
+ * The cursor refers to the place where the record was (could be inserted)
+ * when the operation returns.
+ */
+int					/* error */
+xfs_inobt_delete(
+	xfs_btree_cur_t	*cur,		/* btree cursor */
+	int		*stat)		/* success/failure */
+{
+	int		error;
+	int		i;		/* result code */
+	int		level;		/* btree level */
+
+	/*
+	 * Go up the tree, starting at leaf level.
+	 * If 2 is returned then a join was done; go to the next level.
+	 * Otherwise we are done.
+	 */
+	for (level = 0, i = 2; i == 2; level++) {
+		if ((error = xfs_inobt_delrec(cur, level, &i)))
+			return error;
+	}
+	if (i == 0) {
+		for (level = 1; level < cur->bc_nlevels; level++) {
+			if (cur->bc_ptrs[level] == 0) {
+				if ((error = xfs_inobt_decrement(cur, level, &i)))
+					return error;
+				break;
+			}
+		}
+	}
+	*stat = i;
+	return 0;
+}
+
+
+/*
+ * Get the data from the pointed-to record.
+ */
+int					/* error */
+xfs_inobt_get_rec(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	xfs_agino_t		*ino,	/* output: starting inode of chunk */
+	__int32_t		*fcnt,	/* output: number of free inodes */
+	xfs_inofree_t		*free,	/* output: free inode mask */
+	int			*stat,	/* output: success/failure */
+	xfs_arch_t              arch)   /* input: architecture */
+{
+	xfs_inobt_block_t	*block;	/* btree block */
+	xfs_buf_t		*bp;	/* buffer containing btree block */
+#ifdef DEBUG
+	int			error;	/* error return value */
+#endif
+	int			ptr;	/* record number */
+	xfs_inobt_rec_t		*rec;	/* record data */
+
+	bp = cur->bc_bufs[0];
+	ptr = cur->bc_ptrs[0];
+	block = XFS_BUF_TO_INOBT_BLOCK(bp);
+#ifdef DEBUG
+	if ((error = xfs_btree_check_sblock(cur, block, 0, bp)))
+		return error;
+#endif
+	/*
+	 * Off the right end or left end, return failure.
+	 */
+	if (ptr > INT_GET(block->bb_numrecs, ARCH_CONVERT) || ptr <= 0) {
+		*stat = 0;
+		return 0;
+	}
+	/*
+	 * Point to the record and extract its data.
+	 */
+	rec = XFS_INOBT_REC_ADDR(block, ptr, cur);
+	ASSERT(arch == ARCH_NOCONVERT || arch == ARCH_CONVERT);
+	if (arch == ARCH_NOCONVERT) {
+	    *ino = INT_GET(rec->ir_startino, ARCH_CONVERT);
+	    *fcnt = INT_GET(rec->ir_freecount, ARCH_CONVERT);
+	    *free = INT_GET(rec->ir_free, ARCH_CONVERT);
+	} else {
+	    INT_COPY(*ino, rec->ir_startino, ARCH_CONVERT);
+	    INT_COPY(*fcnt, rec->ir_freecount, ARCH_CONVERT);
+	    INT_COPY(*free, rec->ir_free, ARCH_CONVERT);
+	}
+	*stat = 1;
+	return 0;
+}
+
+/*
+ * Increment cursor by one record at the level.
+ * For nonzero levels the leaf-ward information is untouched.
+ */
+int					/* error */
+xfs_inobt_increment(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			level,	/* level in btree, 0 is leaf */
+	int			*stat)	/* success/failure */
+{
+	xfs_inobt_block_t	*block;	/* btree block */
+	xfs_buf_t		*bp;	/* buffer containing btree block */
+	int			error;	/* error return value */
+	int			lev;	/* btree level */
+
+	ASSERT(level < cur->bc_nlevels);
+	/*
+	 * Read-ahead to the right at this level.
+	 */
+	xfs_btree_readahead(cur, level, XFS_BTCUR_RIGHTRA);
+	/*
+	 * Get a pointer to the btree block.
+	 */
+	bp = cur->bc_bufs[level];
+	block = XFS_BUF_TO_INOBT_BLOCK(bp);
+#ifdef DEBUG
+	if ((error = xfs_btree_check_sblock(cur, block, level, bp)))
+		return error;
+#endif
+	/*
+	 * Increment the ptr at this level.  If we're still in the block
+	 * then we're done.
+	 */
+	if (++cur->bc_ptrs[level] <= INT_GET(block->bb_numrecs, ARCH_CONVERT)) {
+		*stat = 1;
+		return 0;
+	}
+	/*
+	 * If we just went off the right edge of the tree, return failure.
+	 */
+	if (INT_GET(block->bb_rightsib, ARCH_CONVERT) == NULLAGBLOCK) {
+		*stat = 0;
+		return 0;
+	}
+	/*
+	 * March up the tree incrementing pointers.
+	 * Stop when we don't go off the right edge of a block.
+	 */
+	for (lev = level + 1; lev < cur->bc_nlevels; lev++) {
+		bp = cur->bc_bufs[lev];
+		block = XFS_BUF_TO_INOBT_BLOCK(bp);
+#ifdef DEBUG
+		if ((error = xfs_btree_check_sblock(cur, block, lev, bp)))
+			return error;
+#endif
+		if (++cur->bc_ptrs[lev] <= INT_GET(block->bb_numrecs, ARCH_CONVERT))
+			break;
+		/*
+		 * Read-ahead the right block, we're going to read it
+		 * in the next loop.
+		 */
+		xfs_btree_readahead(cur, lev, XFS_BTCUR_RIGHTRA);
+	}
+	/*
+	 * If we went off the root then we are seriously confused.
+	 */
+	ASSERT(lev < cur->bc_nlevels);
+	/*
+	 * Now walk back down the tree, fixing up the cursor's buffer
+	 * pointers and key numbers.
+	 */
+	for (bp = cur->bc_bufs[lev], block = XFS_BUF_TO_INOBT_BLOCK(bp);
+	     lev > level; ) {
+		xfs_agblock_t	agbno;	/* block number of btree block */
+
+		agbno = INT_GET(*XFS_INOBT_PTR_ADDR(block, cur->bc_ptrs[lev], cur), ARCH_CONVERT);
+		if ((error = xfs_btree_read_bufs(cur->bc_mp, cur->bc_tp,
+				cur->bc_private.i.agno, agbno, 0, &bp,
+				XFS_INO_BTREE_REF)))
+			return error;
+		lev--;
+		xfs_btree_setbuf(cur, lev, bp);
+		block = XFS_BUF_TO_INOBT_BLOCK(bp);
+		if ((error = xfs_btree_check_sblock(cur, block, lev, bp)))
+			return error;
+		cur->bc_ptrs[lev] = 1;
+	}
+	*stat = 1;
+	return 0;
+}
+
+/*
+ * Insert the current record at the point referenced by cur.
+ * The cursor may be inconsistent on return if splits have been done.
+ */
+int					/* error */
+xfs_inobt_insert(
+	xfs_btree_cur_t	*cur,		/* btree cursor */
+	int		*stat)		/* success/failure */
+{
+	int		error;		/* error return value */
+	int		i;		/* result value, 0 for failure */
+	int		level;		/* current level number in btree */
+	xfs_agblock_t	nbno;		/* new block number (split result) */
+	xfs_btree_cur_t	*ncur;		/* new cursor (split result) */
+	xfs_inobt_rec_t	nrec;		/* record being inserted this level */
+	xfs_btree_cur_t	*pcur;		/* previous level's cursor */
+
+	level = 0;
+	nbno = NULLAGBLOCK;
+	INT_SET(nrec.ir_startino, ARCH_CONVERT, cur->bc_rec.i.ir_startino);
+	INT_SET(nrec.ir_freecount, ARCH_CONVERT, cur->bc_rec.i.ir_freecount);
+	INT_SET(nrec.ir_free, ARCH_CONVERT, cur->bc_rec.i.ir_free);
+	ncur = (xfs_btree_cur_t *)0;
+	pcur = cur;
+	/*
+	 * Loop going up the tree, starting at the leaf level.
+	 * Stop when we don't get a split block, that must mean that
+	 * the insert is finished with this level.
+	 */
+	do {
+		/*
+		 * Insert nrec/nbno into this level of the tree.
+		 * Note if we fail, nbno will be null.
+		 */
+		if ((error = xfs_inobt_insrec(pcur, level++, &nbno, &nrec, &ncur,
+				&i))) {
+			if (pcur != cur)
+				xfs_btree_del_cursor(pcur, XFS_BTREE_ERROR);
+			return error;
+		}
+		/*
+		 * See if the cursor we just used is trash.
+		 * Can't trash the caller's cursor, but otherwise we should
+		 * if ncur is a new cursor or we're about to be done.
+		 */
+		if (pcur != cur && (ncur || nbno == NULLAGBLOCK)) {
+			cur->bc_nlevels = pcur->bc_nlevels;
+			xfs_btree_del_cursor(pcur, XFS_BTREE_NOERROR);
+		}
+		/*
+		 * If we got a new cursor, switch to it.
+		 */
+		if (ncur) {
+			pcur = ncur;
+			ncur = (xfs_btree_cur_t *)0;
+		}
+	} while (nbno != NULLAGBLOCK);
+	*stat = i;
+	return 0;
+}
+
+/*
+ * Lookup the record equal to ino in the btree given by cur.
+ */
+int					/* error */
+xfs_inobt_lookup_eq(
+	xfs_btree_cur_t	*cur,		/* btree cursor */
+	xfs_agino_t	ino,		/* starting inode of chunk */
+	__int32_t	fcnt,		/* free inode count */
+	xfs_inofree_t	free,		/* free inode mask */
+	int		*stat)		/* success/failure */
+{
+	cur->bc_rec.i.ir_startino = ino;
+	cur->bc_rec.i.ir_freecount = fcnt;
+	cur->bc_rec.i.ir_free = free;
+	return xfs_inobt_lookup(cur, XFS_LOOKUP_EQ, stat);
+}
+
+/*
+ * Lookup the first record greater than or equal to ino
+ * in the btree given by cur.
+ */
+int					/* error */
+xfs_inobt_lookup_ge(
+	xfs_btree_cur_t	*cur,		/* btree cursor */
+	xfs_agino_t	ino,		/* starting inode of chunk */
+	__int32_t	fcnt,		/* free inode count */
+	xfs_inofree_t	free,		/* free inode mask */
+	int		*stat)		/* success/failure */
+{
+	cur->bc_rec.i.ir_startino = ino;
+	cur->bc_rec.i.ir_freecount = fcnt;
+	cur->bc_rec.i.ir_free = free;
+	return xfs_inobt_lookup(cur, XFS_LOOKUP_GE, stat);
+}
+
+/*
+ * Lookup the first record less than or equal to ino
+ * in the btree given by cur.
+ */
+int					/* error */
+xfs_inobt_lookup_le(
+	xfs_btree_cur_t	*cur,		/* btree cursor */
+	xfs_agino_t	ino,		/* starting inode of chunk */
+	__int32_t	fcnt,		/* free inode count */
+	xfs_inofree_t	free,		/* free inode mask */
+	int		*stat)		/* success/failure */
+{
+	cur->bc_rec.i.ir_startino = ino;
+	cur->bc_rec.i.ir_freecount = fcnt;
+	cur->bc_rec.i.ir_free = free;
+	return xfs_inobt_lookup(cur, XFS_LOOKUP_LE, stat);
+}
+
+/*
+ * Update the record referred to by cur, to the value given
+ * by [ino, fcnt, free].
+ * This either works (return 0) or gets an EFSCORRUPTED error.
+ */
+int					/* error */
+xfs_inobt_update(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	xfs_agino_t		ino,	/* starting inode of chunk */
+	__int32_t		fcnt,	/* free inode count */
+	xfs_inofree_t		free)	/* free inode mask */
+{
+	xfs_inobt_block_t	*block;	/* btree block to update */
+	xfs_buf_t		*bp;	/* buffer containing btree block */
+	int			error;	/* error return value */
+	int			ptr;	/* current record number (updating) */
+	xfs_inobt_rec_t		*rp;	/* pointer to updated record */
+
+	/*
+	 * Pick up the current block.
+	 */
+	bp = cur->bc_bufs[0];
+	block = XFS_BUF_TO_INOBT_BLOCK(bp);
+#ifdef DEBUG
+	if ((error = xfs_btree_check_sblock(cur, block, 0, bp)))
+		return error;
+#endif
+	/*
+	 * Get the address of the rec to be updated.
+	 */
+	ptr = cur->bc_ptrs[0];
+	rp = XFS_INOBT_REC_ADDR(block, ptr, cur);
+	/*
+	 * Fill in the new contents and log them.
+	 */
+	INT_SET(rp->ir_startino, ARCH_CONVERT, ino);
+	INT_SET(rp->ir_freecount, ARCH_CONVERT, fcnt);
+	INT_SET(rp->ir_free, ARCH_CONVERT, free);
+	xfs_inobt_log_recs(cur, bp, ptr, ptr);
+	/*
+	 * Updating first record in leaf. Pass new key value up to our parent.
+	 */
+	if (ptr == 1) {
+		xfs_inobt_key_t	key;	/* key containing [ino] */
+
+		INT_SET(key.ir_startino, ARCH_CONVERT, ino);
+		if ((error = xfs_inobt_updkey(cur, &key, 1)))
+			return error;
+	}
+	return 0;
+}
diff --git a/fs/xfs/xfs_ialloc_btree.h b/fs/xfs/xfs_ialloc_btree.h
new file mode 100644
index 00000000000000..dbda2ed8128e34
--- /dev/null
+++ b/fs/xfs/xfs_ialloc_btree.h
@@ -0,0 +1,316 @@
+/*
+ * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_IALLOC_BTREE_H__
+#define	__XFS_IALLOC_BTREE_H__
+
+/*
+ * Inode map on-disk structures
+ */
+
+struct xfs_buf;
+struct xfs_btree_cur;
+struct xfs_btree_sblock;
+struct xfs_mount;
+
+/*
+ * There is a btree for the inode map per allocation group.
+ */
+#define	XFS_IBT_MAGIC	0x49414254	/* 'IABT' */
+
+typedef	__uint64_t	xfs_inofree_t;
+#define	XFS_INODES_PER_CHUNK	(NBBY * sizeof(xfs_inofree_t))
+#define	XFS_INODES_PER_CHUNK_LOG	(XFS_NBBYLOG + 3)
+#define	XFS_INOBT_ALL_FREE	((xfs_inofree_t)-1)
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_INOBT_MASKN)
+xfs_inofree_t xfs_inobt_maskn(int i, int n);
+#define	XFS_INOBT_MASKN(i,n)		xfs_inobt_maskn(i,n)
+#else
+#define	XFS_INOBT_MASKN(i,n)	\
+	((((n) >= XFS_INODES_PER_CHUNK ? \
+		(xfs_inofree_t)0 : ((xfs_inofree_t)1 << (n))) - 1) << (i))
+#endif
+
+/*
+ * Data record structure
+ */
+typedef struct xfs_inobt_rec
+{
+	xfs_agino_t	ir_startino;	/* starting inode number */
+	__int32_t	ir_freecount;	/* count of free inodes (set bits) */
+	xfs_inofree_t	ir_free;	/* free inode mask */
+} xfs_inobt_rec_t;
+
+/*
+ * Key structure
+ */
+typedef struct xfs_inobt_key
+{
+	xfs_agino_t	ir_startino;	/* starting inode number */
+} xfs_inobt_key_t;
+
+typedef xfs_agblock_t xfs_inobt_ptr_t;	/* btree pointer type */
+					/* btree block header type */
+typedef	struct xfs_btree_sblock xfs_inobt_block_t;
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BUF_TO_INOBT_BLOCK)
+xfs_inobt_block_t *xfs_buf_to_inobt_block(struct xfs_buf *bp);
+#define	XFS_BUF_TO_INOBT_BLOCK(bp)	xfs_buf_to_inobt_block(bp)
+#else
+#define	XFS_BUF_TO_INOBT_BLOCK(bp) ((xfs_inobt_block_t *)(XFS_BUF_PTR(bp)))
+#endif
+
+/*
+ * Bit manipulations for ir_free.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_INOBT_MASK)
+xfs_inofree_t xfs_inobt_mask(int i);
+#define	XFS_INOBT_MASK(i)		xfs_inobt_mask(i)
+#else
+#define	XFS_INOBT_MASK(i)		((xfs_inofree_t)1 << (i))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_INOBT_IS_FREE)
+int xfs_inobt_is_free(xfs_inobt_rec_t *rp, int i, xfs_arch_t arch);
+#define	XFS_INOBT_IS_FREE(rp,i,arch)	xfs_inobt_is_free(rp,i,arch)
+#else
+#define	XFS_INOBT_IS_FREE(rp,i,arch)	((INT_GET((rp)->ir_free, arch) \
+					 & XFS_INOBT_MASK(i)) != 0)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_INOBT_SET_FREE)
+void xfs_inobt_set_free(xfs_inobt_rec_t *rp, int i, xfs_arch_t arch);
+#define	XFS_INOBT_SET_FREE(rp,i,arch)	xfs_inobt_set_free(rp,i,arch)
+#else
+#define	XFS_INOBT_SET_FREE(rp,i,arch)	(INT_MOD_EXPR((rp)->ir_free, arch, |= XFS_INOBT_MASK(i)))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_INOBT_CLR_FREE)
+void xfs_inobt_clr_free(xfs_inobt_rec_t *rp, int i, xfs_arch_t arch);
+#define	XFS_INOBT_CLR_FREE(rp,i,arch)	xfs_inobt_clr_free(rp,i,arch)
+#else
+#define	XFS_INOBT_CLR_FREE(rp,i,arch)	(INT_MOD_EXPR((rp)->ir_free, arch, &= ~XFS_INOBT_MASK(i)))
+#endif
+
+/*
+ * Real block structures have a size equal to the disk block size.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_INOBT_BLOCK_SIZE)
+int xfs_inobt_block_size(int lev, struct xfs_btree_cur *cur);
+#define	XFS_INOBT_BLOCK_SIZE(lev,cur)	xfs_inobt_block_size(lev,cur)
+#else
+#define	XFS_INOBT_BLOCK_SIZE(lev,cur)	(1 << (cur)->bc_blocklog)
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_INOBT_BLOCK_MAXRECS)
+int xfs_inobt_block_maxrecs(int lev, struct xfs_btree_cur *cur);
+#define	XFS_INOBT_BLOCK_MAXRECS(lev,cur)	xfs_inobt_block_maxrecs(lev,cur)
+#else
+#define	XFS_INOBT_BLOCK_MAXRECS(lev,cur)	\
+	((cur)->bc_mp->m_inobt_mxr[lev != 0])
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_INOBT_BLOCK_MINRECS)
+int xfs_inobt_block_minrecs(int lev, struct xfs_btree_cur *cur);
+#define	XFS_INOBT_BLOCK_MINRECS(lev,cur)	xfs_inobt_block_minrecs(lev,cur)
+#else
+#define	XFS_INOBT_BLOCK_MINRECS(lev,cur)	\
+	((cur)->bc_mp->m_inobt_mnr[lev != 0])
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_INOBT_IS_LAST_REC)
+int xfs_inobt_is_last_rec(struct xfs_btree_cur *cur);
+#define	XFS_INOBT_IS_LAST_REC(cur)	xfs_inobt_is_last_rec(cur)
+#else
+#define	XFS_INOBT_IS_LAST_REC(cur)	\
+	((cur)->bc_ptrs[0] == \
+		INT_GET(XFS_BUF_TO_INOBT_BLOCK((cur)->bc_bufs[0])->bb_numrecs, ARCH_CONVERT))
+#endif
+
+/*
+ * Maximum number of inode btree levels.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IN_MAXLEVELS)
+int xfs_in_maxlevels(struct xfs_mount *mp);
+#define	XFS_IN_MAXLEVELS(mp)		xfs_in_maxlevels(mp)
+#else
+#define	XFS_IN_MAXLEVELS(mp)		((mp)->m_in_maxlevels)
+#endif
+
+/*
+ * block numbers in the AG.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IBT_BLOCK)
+xfs_agblock_t xfs_ibt_block(struct xfs_mount *mp);
+#define	XFS_IBT_BLOCK(mp)		xfs_ibt_block(mp)
+#else
+#define	XFS_IBT_BLOCK(mp)	((xfs_agblock_t)(XFS_CNT_BLOCK(mp) + 1))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_PREALLOC_BLOCKS)
+xfs_agblock_t xfs_prealloc_blocks(struct xfs_mount *mp);
+#define	XFS_PREALLOC_BLOCKS(mp)		xfs_prealloc_blocks(mp)
+#else
+#define	XFS_PREALLOC_BLOCKS(mp)	((xfs_agblock_t)(XFS_IBT_BLOCK(mp) + 1))
+#endif
+
+/*
+ * Record, key, and pointer address macros for btree blocks.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_INOBT_REC_ADDR)
+xfs_inobt_rec_t *
+xfs_inobt_rec_addr(xfs_inobt_block_t *bb, int i, struct xfs_btree_cur *cur);
+#define	XFS_INOBT_REC_ADDR(bb,i,cur)	xfs_inobt_rec_addr(bb,i,cur)
+#else
+#define	XFS_INOBT_REC_ADDR(bb,i,cur)	\
+	XFS_BTREE_REC_ADDR(XFS_INOBT_BLOCK_SIZE(0,cur), xfs_inobt, bb, i, \
+		XFS_INOBT_BLOCK_MAXRECS(0, cur))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_INOBT_KEY_ADDR)
+xfs_inobt_key_t *
+xfs_inobt_key_addr(xfs_inobt_block_t *bb, int i, struct xfs_btree_cur *cur);
+#define	XFS_INOBT_KEY_ADDR(bb,i,cur)	xfs_inobt_key_addr(bb,i,cur)
+#else
+#define	XFS_INOBT_KEY_ADDR(bb,i,cur)	\
+	XFS_BTREE_KEY_ADDR(XFS_INOBT_BLOCK_SIZE(1,cur), xfs_inobt, bb, i, \
+		XFS_INOBT_BLOCK_MAXRECS(1, cur))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_INOBT_PTR_ADDR)
+xfs_inobt_ptr_t *
+xfs_inobt_ptr_addr(xfs_inobt_block_t *bb, int i, struct xfs_btree_cur *cur);
+#define	XFS_INOBT_PTR_ADDR(bb,i,cur)	xfs_inobt_ptr_addr(bb,i,cur)
+#else
+#define	XFS_INOBT_PTR_ADDR(bb,i,cur)	\
+	XFS_BTREE_PTR_ADDR(XFS_INOBT_BLOCK_SIZE(1,cur), xfs_inobt, bb, i, \
+		XFS_INOBT_BLOCK_MAXRECS(1, cur))
+#endif
+
+/*
+ * Prototypes for externally visible routines.
+ */
+
+/*
+ * Decrement cursor by one record at the level.
+ * For nonzero levels the leaf-ward information is untouched.
+ */
+int					/* error */
+xfs_inobt_decrement(
+	struct xfs_btree_cur	*cur,	/* btree cursor */
+	int			level,	/* level in btree, 0 is leaf */
+	int			*stat); /* success/failure */
+
+/*
+ * Delete the record pointed to by cur.
+ * The cursor refers to the place where the record was (could be inserted)
+ * when the operation returns.
+ */
+int					/* error */
+xfs_inobt_delete(
+	struct xfs_btree_cur	*cur,	/* btree cursor */
+	int			*stat);	/* success/failure */
+
+/*
+ * Get the data from the pointed-to record.
+ */
+int					/* error */
+xfs_inobt_get_rec(
+	struct xfs_btree_cur	*cur,	/* btree cursor */
+	xfs_agino_t		*ino,	/* output: starting inode of chunk */
+	__int32_t		*fcnt,	/* output: number of free inodes */
+	xfs_inofree_t		*free,	/* output: free inode mask */
+	int			*stat,	/* output: success/failure */
+	xfs_arch_t		arch);	/* output: architecture */
+
+/*
+ * Increment cursor by one record at the level.
+ * For nonzero levels the leaf-ward information is untouched.
+ */
+int					/* error */
+xfs_inobt_increment(
+	struct xfs_btree_cur	*cur,	/* btree cursor */
+	int			level,	/* level in btree, 0 is leaf */
+	int			*stat);	/* success/failure */
+
+/*
+ * Insert the current record at the point referenced by cur.
+ * The cursor may be inconsistent on return if splits have been done.
+ */
+int					/* error */
+xfs_inobt_insert(
+	struct xfs_btree_cur	*cur,	/* btree cursor */
+	int			*stat);	/* success/failure */
+
+/*
+ * Lookup the record equal to ino in the btree given by cur.
+ */
+int					/* error */
+xfs_inobt_lookup_eq(
+	struct xfs_btree_cur	*cur,	/* btree cursor */
+	xfs_agino_t		ino,	/* starting inode of chunk */
+	__int32_t		fcnt,	/* free inode count */
+	xfs_inofree_t		free,	/* free inode mask */
+	int			*stat);	/* success/failure */
+
+/*
+ * Lookup the first record greater than or equal to ino
+ * in the btree given by cur.
+ */
+int					/* error */
+xfs_inobt_lookup_ge(
+	struct xfs_btree_cur	*cur,	/* btree cursor */
+	xfs_agino_t		ino,	/* starting inode of chunk */
+	__int32_t		fcnt,	/* free inode count */
+	xfs_inofree_t		free,	/* free inode mask */
+	int			*stat);	/* success/failure */
+
+/*
+ * Lookup the first record less than or equal to ino
+ * in the btree given by cur.
+ */
+int					/* error */
+xfs_inobt_lookup_le(
+	struct xfs_btree_cur	*cur,	/* btree cursor */
+	xfs_agino_t		ino,	/* starting inode of chunk */
+	__int32_t		fcnt,	/* free inode count */
+	xfs_inofree_t		free,	/* free inode mask */
+	int			*stat);	/* success/failure */
+
+/*
+ * Update the record referred to by cur, to the value given
+ * by [ino, fcnt, free].
+ * This either works (return 0) or gets an EFSCORRUPTED error.
+ */
+int					/* error */
+xfs_inobt_update(
+	struct xfs_btree_cur	*cur,	/* btree cursor */
+	xfs_agino_t		ino,	/* starting inode of chunk */
+	__int32_t		fcnt,	/* free inode count */
+	xfs_inofree_t		free);	/* free inode mask */
+
+#endif	/* __XFS_IALLOC_BTREE_H__ */
diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c
new file mode 100644
index 00000000000000..c231e9e34559f8
--- /dev/null
+++ b/fs/xfs/xfs_iget.c
@@ -0,0 +1,1019 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_quota.h"
+#include "xfs_utils.h"
+
+/*
+ * Initialize the inode hash table for the newly mounted file system.
+ *
+ * mp -- this is the mount point structure for the file system being
+ *       initialized
+ */
+void
+xfs_ihash_init(xfs_mount_t *mp)
+{
+	int	i;
+
+	mp->m_ihsize = XFS_BUCKETS(mp);
+	mp->m_ihash = (xfs_ihash_t *)kmem_zalloc(mp->m_ihsize
+				      * sizeof(xfs_ihash_t), KM_SLEEP);
+	ASSERT(mp->m_ihash != NULL);
+	for (i = 0; i < mp->m_ihsize; i++) {
+		rwlock_init(&(mp->m_ihash[i].ih_lock));
+	}
+}
+
+/*
+ * Free up structures allocated by xfs_ihash_init, at unmount time.
+ */
+void
+xfs_ihash_free(xfs_mount_t *mp)
+{
+	kmem_free(mp->m_ihash, mp->m_ihsize*sizeof(xfs_ihash_t));
+	mp->m_ihash = NULL;
+}
+
+/*
+ * Initialize the inode cluster hash table for the newly mounted file system.
+ *
+ * mp -- this is the mount point structure for the file system being
+ *       initialized
+ */
+void
+xfs_chash_init(xfs_mount_t *mp)
+{
+	int	i;
+
+	/*
+	 * m_chash size is based on m_ihash
+	 * with a minimum of 37 entries
+	 */
+	mp->m_chsize = (XFS_BUCKETS(mp)) /
+			 (XFS_INODE_CLUSTER_SIZE(mp) >> mp->m_sb.sb_inodelog);
+	if (mp->m_chsize < 37) {
+		mp->m_chsize = 37;
+	}
+	mp->m_chash = (xfs_chash_t *)kmem_zalloc(mp->m_chsize
+						 * sizeof(xfs_chash_t),
+						 KM_SLEEP);
+	ASSERT(mp->m_chash != NULL);
+
+	for (i = 0; i < mp->m_chsize; i++) {
+		spinlock_init(&mp->m_chash[i].ch_lock,"xfshash");
+	}
+}
+
+/*
+ * Free up structures allocated by xfs_chash_init, at unmount time.
+ */
+void
+xfs_chash_free(xfs_mount_t *mp)
+{
+	int	i;
+
+	for (i = 0; i < mp->m_chsize; i++) {
+		spinlock_destroy(&mp->m_chash[i].ch_lock);
+	}
+
+	kmem_free(mp->m_chash, mp->m_chsize*sizeof(xfs_chash_t));
+	mp->m_chash = NULL;
+}
+
+/*
+ * Look up an inode by number in the given file system.
+ * The inode is looked up in the hash table for the file system
+ * represented by the mount point parameter mp.  Each bucket of
+ * the hash table is guarded by an individual semaphore.
+ *
+ * If the inode is found in the hash table, its corresponding vnode
+ * is obtained with a call to vn_get().  This call takes care of
+ * coordination with the reclamation of the inode and vnode.  Note
+ * that the vmap structure is filled in while holding the hash lock.
+ * This gives us the state of the inode/vnode when we found it and
+ * is used for coordination in vn_get().
+ *
+ * If it is not in core, read it in from the file system's device and
+ * add the inode into the hash table.
+ *
+ * The inode is locked according to the value of the lock_flags parameter.
+ * This flag parameter indicates how and if the inode's IO lock and inode lock
+ * should be taken.
+ *
+ * mp -- the mount point structure for the current file system.  It points
+ *       to the inode hash table.
+ * tp -- a pointer to the current transaction if there is one.  This is
+ *       simply passed through to the xfs_iread() call.
+ * ino -- the number of the inode desired.  This is the unique identifier
+ *        within the file system for the inode being requested.
+ * lock_flags -- flags indicating how to lock the inode.  See the comment
+ *		 for xfs_ilock() for a list of valid values.
+ * bno -- the block number starting the buffer containing the inode,
+ *	  if known (as by bulkstat), else 0.
+ */
+STATIC int
+xfs_iget_core(
+	vnode_t		*vp,
+	xfs_mount_t	*mp,
+	xfs_trans_t	*tp,
+	xfs_ino_t	ino,
+	uint		flags,
+	uint		lock_flags,
+	xfs_inode_t	**ipp,
+	xfs_daddr_t	bno)
+{
+	xfs_ihash_t	*ih;
+	xfs_inode_t	*ip;
+	xfs_inode_t	*iq;
+	vnode_t		*inode_vp;
+	ulong		version;
+	int		error;
+	/* REFERENCED */
+	xfs_chash_t	*ch;
+	xfs_chashlist_t	*chl, *chlnew;
+	SPLDECL(s);
+
+
+	ih = XFS_IHASH(mp, ino);
+
+again:
+	read_lock(&ih->ih_lock);
+
+	for (ip = ih->ih_next; ip != NULL; ip = ip->i_next) {
+		if (ip->i_ino == ino) {
+			/*
+			 * If INEW is set this inode is being set up
+			 * we need to pause and try again.
+			 */
+			if (ip->i_flags & XFS_INEW) {
+				read_unlock(&ih->ih_lock);
+				delay(1);
+				XFS_STATS_INC(xs_ig_frecycle);
+
+				goto again;
+			}
+
+			inode_vp = XFS_ITOV_NULL(ip);
+			if (inode_vp == NULL) {
+				/*
+				 * If IRECLAIM is set this inode is
+				 * on its way out of the system,
+				 * we need to pause and try again.
+				 */
+				if (ip->i_flags & XFS_IRECLAIM) {
+					read_unlock(&ih->ih_lock);
+					delay(1);
+					XFS_STATS_INC(xs_ig_frecycle);
+
+					goto again;
+				}
+
+				vn_trace_exit(vp, "xfs_iget.alloc",
+					(inst_t *)__return_address);
+
+				XFS_STATS_INC(xs_ig_found);
+
+				ip->i_flags &= ~XFS_IRECLAIMABLE;
+				read_unlock(&ih->ih_lock);
+
+				XFS_MOUNT_ILOCK(mp);
+				list_del_init(&ip->i_reclaim);
+				XFS_MOUNT_IUNLOCK(mp);
+
+				goto finish_inode;
+
+			} else if (vp != inode_vp) {
+				struct inode *inode = LINVFS_GET_IP(inode_vp);
+
+				/* The inode is being torn down, pause and
+				 * try again.
+				 */
+				if (inode->i_state & (I_FREEING | I_CLEAR)) {
+					read_unlock(&ih->ih_lock);
+					delay(1);
+					XFS_STATS_INC(xs_ig_frecycle);
+
+					goto again;
+				}
+/* Chances are the other vnode (the one in the inode) is being torn
+ * down right now, and we landed on top of it. Question is, what do
+ * we do? Unhook the old inode and hook up the new one?
+ */
+				cmn_err(CE_PANIC,
+			"xfs_iget_core: ambiguous vns: vp/0x%p, invp/0x%p",
+						inode_vp, vp);
+			}
+
+			read_unlock(&ih->ih_lock);
+
+			XFS_STATS_INC(xs_ig_found);
+
+finish_inode:
+			if (ip->i_d.di_mode == 0) {
+				if (!(flags & IGET_CREATE))
+					return ENOENT;
+				xfs_iocore_inode_reinit(ip);
+			}
+	
+			if (lock_flags != 0)
+				xfs_ilock(ip, lock_flags);
+
+			ip->i_flags &= ~XFS_ISTALE;
+
+			vn_trace_exit(vp, "xfs_iget.found",
+						(inst_t *)__return_address);
+			goto return_ip;
+		}
+	}
+
+	/*
+	 * Inode cache miss: save the hash chain version stamp and unlock
+	 * the chain, so we don't deadlock in vn_alloc.
+	 */
+	XFS_STATS_INC(xs_ig_missed);
+
+	version = ih->ih_version;
+
+	read_unlock(&ih->ih_lock);
+
+	/*
+	 * Read the disk inode attributes into a new inode structure and get
+	 * a new vnode for it. This should also initialize i_ino and i_mount.
+	 */
+	error = xfs_iread(mp, tp, ino, &ip, bno);
+	if (error) {
+		return error;
+	}
+
+	vn_trace_exit(vp, "xfs_iget.alloc", (inst_t *)__return_address);
+
+	xfs_inode_lock_init(ip, vp);
+	xfs_iocore_inode_init(ip);
+
+	if (lock_flags != 0) {
+		xfs_ilock(ip, lock_flags);
+	}
+		
+	if ((ip->i_d.di_mode == 0) && !(flags & IGET_CREATE)) {
+		xfs_idestroy(ip);
+		return ENOENT;
+	}
+
+	/*
+	 * Put ip on its hash chain, unless someone else hashed a duplicate
+	 * after we released the hash lock.
+	 */
+	write_lock(&ih->ih_lock);
+
+	if (ih->ih_version != version) {
+		for (iq = ih->ih_next; iq != NULL; iq = iq->i_next) {
+			if (iq->i_ino == ino) {
+				write_unlock(&ih->ih_lock);
+				xfs_idestroy(ip);
+
+				XFS_STATS_INC(xs_ig_dup);
+				goto again;
+			}
+		}
+	}
+
+	/*
+	 * These values _must_ be set before releasing ihlock!
+	 */
+	ip->i_hash = ih;
+	if ((iq = ih->ih_next)) {
+		iq->i_prevp = &ip->i_next;
+	}
+	ip->i_next = iq;
+	ip->i_prevp = &ih->ih_next;
+	ih->ih_next = ip;
+	ip->i_udquot = ip->i_gdquot = NULL;
+	ih->ih_version++;
+	ip->i_flags |= XFS_INEW;
+
+	write_unlock(&ih->ih_lock);
+
+	/*
+	 * put ip on its cluster's hash chain
+	 */
+	ASSERT(ip->i_chash == NULL && ip->i_cprev == NULL &&
+	       ip->i_cnext == NULL);
+
+	chlnew = NULL;
+	ch = XFS_CHASH(mp, ip->i_blkno);
+ chlredo:
+	s = mutex_spinlock(&ch->ch_lock);
+	for (chl = ch->ch_list; chl != NULL; chl = chl->chl_next) {
+		if (chl->chl_blkno == ip->i_blkno) {
+
+			/* insert this inode into the doubly-linked list
+			 * where chl points */
+			if ((iq = chl->chl_ip)) {
+				ip->i_cprev = iq->i_cprev;
+				iq->i_cprev->i_cnext = ip;
+				iq->i_cprev = ip;
+				ip->i_cnext = iq;
+			} else {
+				ip->i_cnext = ip;
+				ip->i_cprev = ip;
+			}
+			chl->chl_ip = ip;
+			ip->i_chash = chl;
+			break;
+		}
+	}
+
+	/* no hash list found for this block; add a new hash list */
+	if (chl == NULL)  {
+		if (chlnew == NULL) {
+			mutex_spinunlock(&ch->ch_lock, s);
+			ASSERT(xfs_chashlist_zone != NULL);
+			chlnew = (xfs_chashlist_t *)
+					kmem_zone_alloc(xfs_chashlist_zone,
+						KM_SLEEP);
+			ASSERT(chlnew != NULL);
+			goto chlredo;
+		} else {
+			ip->i_cnext = ip;
+			ip->i_cprev = ip;
+			ip->i_chash = chlnew;
+			chlnew->chl_ip = ip;
+			chlnew->chl_blkno = ip->i_blkno;
+			chlnew->chl_next = ch->ch_list;
+			ch->ch_list = chlnew;
+			chlnew = NULL;
+		}
+	} else {
+		if (chlnew != NULL) {
+			kmem_zone_free(xfs_chashlist_zone, chlnew);
+		}
+	}
+
+	mutex_spinunlock(&ch->ch_lock, s);
+
+
+	/*
+	 * Link ip to its mount and thread it on the mount's inode list.
+	 */
+	XFS_MOUNT_ILOCK(mp);
+	if ((iq = mp->m_inodes)) {
+		ASSERT(iq->i_mprev->i_mnext == iq);
+		ip->i_mprev = iq->i_mprev;
+		iq->i_mprev->i_mnext = ip;
+		iq->i_mprev = ip;
+		ip->i_mnext = iq;
+	} else {
+		ip->i_mnext = ip;
+		ip->i_mprev = ip;
+	}
+	mp->m_inodes = ip;
+
+	XFS_MOUNT_IUNLOCK(mp);
+
+ return_ip:
+	ASSERT(ip->i_df.if_ext_max ==
+	       XFS_IFORK_DSIZE(ip) / sizeof(xfs_bmbt_rec_t));
+
+	ASSERT(((ip->i_d.di_flags & XFS_DIFLAG_REALTIME) != 0) ==
+	       ((ip->i_iocore.io_flags & XFS_IOCORE_RT) != 0));
+
+	*ipp = ip;
+
+	/*
+	 * If we have a real type for an on-disk inode, we can set ops(&unlock)
+	 * now.	 If it's a new inode being created, xfs_ialloc will handle it.
+	 */
+	VFS_INIT_VNODE(XFS_MTOVFS(mp), vp, XFS_ITOBHV(ip), 1);
+
+	return 0;
+}
+
+
+/*
+ * The 'normal' internal xfs_iget, if needed it will
+ * 'allocate', or 'get', the vnode.
+ */
+int
+xfs_iget(
+	xfs_mount_t	*mp,
+	xfs_trans_t	*tp,
+	xfs_ino_t	ino,
+	uint		flags,
+	uint		lock_flags,
+	xfs_inode_t	**ipp,
+	xfs_daddr_t	bno)
+{
+	struct inode	*inode;
+	vnode_t		*vp = NULL;
+	int		error;
+
+retry:
+	XFS_STATS_INC(xs_ig_attempts);
+
+	if ((inode = VFS_GET_INODE(XFS_MTOVFS(mp), ino, 0))) {
+		bhv_desc_t	*bdp;
+		xfs_inode_t	*ip;
+		int		newnode;
+
+		vp = LINVFS_GET_VP(inode);
+		if (inode->i_state & I_NEW) {
+inode_allocate:
+			vn_initialize(inode);
+			error = xfs_iget_core(vp, mp, tp, ino, flags,
+					lock_flags, ipp, bno);
+			if (error) {
+				vn_mark_bad(vp);
+				if (inode->i_state & I_NEW)
+					unlock_new_inode(inode);
+				iput(inode);
+			}
+		} else {
+			/* These are true if the inode is in inactive or
+			 * reclaim. The linux inode is about to go away,
+			 * wait for that path to finish, and try again.
+			 */
+			if (vp->v_flag & (VINACT | VRECLM)) {
+				vn_wait(vp);
+				iput(inode);
+				goto retry;
+			}
+
+			if (is_bad_inode(inode)) {
+				iput(inode);
+				return EIO;
+			}
+
+			bdp = vn_bhv_lookup(VN_BHV_HEAD(vp), &xfs_vnodeops);
+			if (bdp == NULL) {
+				XFS_STATS_INC(xs_ig_dup);
+				goto inode_allocate;
+			}
+			ip = XFS_BHVTOI(bdp);
+			if (lock_flags != 0)
+				xfs_ilock(ip, lock_flags);
+			newnode = (ip->i_d.di_mode == 0);
+			if (newnode)
+				xfs_iocore_inode_reinit(ip);
+			XFS_STATS_INC(xs_ig_found);
+			*ipp = ip;
+			error = 0;
+		}
+	} else
+		error = ENOMEM;	/* If we got no inode we are out of memory */
+
+	return error;
+}
+
+/*
+ * Do the setup for the various locks within the incore inode.
+ */
+void
+xfs_inode_lock_init(
+	xfs_inode_t	*ip,
+	vnode_t		*vp)
+{
+	mrlock_init(&ip->i_lock, MRLOCK_ALLOW_EQUAL_PRI|MRLOCK_BARRIER,
+		     "xfsino", (long)vp->v_number);
+	mrlock_init(&ip->i_iolock, MRLOCK_BARRIER, "xfsio", vp->v_number);
+	init_waitqueue_head(&ip->i_ipin_wait);
+	atomic_set(&ip->i_pincount, 0);
+	init_sema(&ip->i_flock, 1, "xfsfino", vp->v_number);
+}
+
+/*
+ * Look for the inode corresponding to the given ino in the hash table.
+ * If it is there and its i_transp pointer matches tp, return it.
+ * Otherwise, return NULL.
+ */
+xfs_inode_t *
+xfs_inode_incore(xfs_mount_t	*mp,
+		 xfs_ino_t	ino,
+		 xfs_trans_t	*tp)
+{
+	xfs_ihash_t	*ih;
+	xfs_inode_t	*ip;
+
+	ih = XFS_IHASH(mp, ino);
+	read_lock(&ih->ih_lock);
+	for (ip = ih->ih_next; ip != NULL; ip = ip->i_next) {
+		if (ip->i_ino == ino) {
+			/*
+			 * If we find it and tp matches, return it.
+			 * Otherwise break from the loop and return
+			 * NULL.
+			 */
+			if (ip->i_transp == tp) {
+				read_unlock(&ih->ih_lock);
+				return (ip);
+			}
+			break;
+		}
+	}
+	read_unlock(&ih->ih_lock);
+	return (NULL);
+}
+
+/*
+ * Decrement reference count of an inode structure and unlock it.
+ *
+ * ip -- the inode being released
+ * lock_flags -- this parameter indicates the inode's locks to be
+ *       to be released.  See the comment on xfs_iunlock() for a list
+ *	 of valid values.
+ */
+void
+xfs_iput(xfs_inode_t	*ip,
+	 uint		lock_flags)
+{
+	vnode_t	*vp = XFS_ITOV(ip);
+
+	vn_trace_entry(vp, "xfs_iput", (inst_t *)__return_address);
+
+	xfs_iunlock(ip, lock_flags);
+
+	VN_RELE(vp);
+}
+
+/*
+ * Special iput for brand-new inodes that are still locked
+ */
+void
+xfs_iput_new(xfs_inode_t	*ip,
+	     uint		lock_flags)
+{
+	vnode_t		*vp = XFS_ITOV(ip);
+	struct inode	*inode = LINVFS_GET_IP(vp);
+
+	vn_trace_entry(vp, "xfs_iput_new", (inst_t *)__return_address);
+
+	if ((ip->i_d.di_mode == 0)) {
+		ASSERT(!(ip->i_flags & XFS_IRECLAIMABLE));
+		vn_mark_bad(vp);
+	}
+	if (inode->i_state & I_NEW)
+		unlock_new_inode(inode);
+	if (lock_flags)
+		xfs_iunlock(ip, lock_flags);
+	VN_RELE(vp);
+}
+
+
+/*
+ * This routine embodies the part of the reclaim code that pulls
+ * the inode from the inode hash table and the mount structure's
+ * inode list.
+ * This should only be called from xfs_reclaim().
+ */
+void
+xfs_ireclaim(xfs_inode_t *ip)
+{
+	vnode_t		*vp;
+
+	/*
+	 * Remove from old hash list and mount list.
+	 */
+	XFS_STATS_INC(xs_ig_reclaims);
+
+	xfs_iextract(ip);
+
+	/*
+	 * Here we do a spurious inode lock in order to coordinate with
+	 * xfs_sync().  This is because xfs_sync() references the inodes
+	 * in the mount list without taking references on the corresponding
+	 * vnodes.  We make that OK here by ensuring that we wait until
+	 * the inode is unlocked in xfs_sync() before we go ahead and
+	 * free it.  We get both the regular lock and the io lock because
+	 * the xfs_sync() code may need to drop the regular one but will
+	 * still hold the io lock.
+	 */
+	xfs_ilock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
+
+	/*
+	 * Release dquots (and their references) if any. An inode may escape
+	 * xfs_inactive and get here via vn_alloc->vn_reclaim path.
+	 */
+	XFS_QM_DQDETACH(ip->i_mount, ip);
+
+	/*
+	 * Pull our behavior descriptor from the vnode chain.
+	 */
+	vp = XFS_ITOV_NULL(ip);
+	if (vp) {
+		vn_bhv_remove(VN_BHV_HEAD(vp), XFS_ITOBHV(ip));
+	}
+
+	/*
+	 * Free all memory associated with the inode.
+	 */
+	xfs_idestroy(ip);
+}
+
+/*
+ * This routine removes an about-to-be-destroyed inode from
+ * all of the lists in which it is located with the exception
+ * of the behavior chain.
+ */
+void
+xfs_iextract(
+	xfs_inode_t	*ip)
+{
+	xfs_ihash_t	*ih;
+	xfs_inode_t	*iq;
+	xfs_mount_t	*mp;
+	xfs_chash_t	*ch;
+	xfs_chashlist_t *chl, *chm;
+	SPLDECL(s);
+
+	ih = ip->i_hash;
+	write_lock(&ih->ih_lock);
+	if ((iq = ip->i_next)) {
+		iq->i_prevp = ip->i_prevp;
+	}
+	*ip->i_prevp = iq;
+	write_unlock(&ih->ih_lock);
+
+	/*
+	 * Remove from cluster hash list
+	 *   1) delete the chashlist if this is the last inode on the chashlist
+	 *   2) unchain from list of inodes
+	 *   3) point chashlist->chl_ip to 'chl_next' if to this inode.
+	 */
+	mp = ip->i_mount;
+	ch = XFS_CHASH(mp, ip->i_blkno);
+	s = mutex_spinlock(&ch->ch_lock);
+
+	if (ip->i_cnext == ip) {
+		/* Last inode on chashlist */
+		ASSERT(ip->i_cnext == ip && ip->i_cprev == ip);
+		ASSERT(ip->i_chash != NULL);
+		chm=NULL;
+		for (chl = ch->ch_list; chl != NULL; chl = chl->chl_next) {
+			if (chl->chl_blkno == ip->i_blkno) {
+				if (chm == NULL) {
+					/* first item on the list */
+					ch->ch_list = chl->chl_next;
+				} else {
+					chm->chl_next = chl->chl_next;
+				}
+				kmem_zone_free(xfs_chashlist_zone, chl);
+				break;
+			} else {
+				ASSERT(chl->chl_ip != ip);
+				chm = chl;
+			}
+		}
+		ASSERT_ALWAYS(chl != NULL);
+       } else {
+		/* delete one inode from a non-empty list */
+		iq = ip->i_cnext;
+		iq->i_cprev = ip->i_cprev;
+		ip->i_cprev->i_cnext = iq;
+		if (ip->i_chash->chl_ip == ip) {
+			ip->i_chash->chl_ip = iq;
+		}
+		ip->i_chash = __return_address;
+		ip->i_cprev = __return_address;
+		ip->i_cnext = __return_address;
+	}
+	mutex_spinunlock(&ch->ch_lock, s);
+
+	/*
+	 * Remove from mount's inode list.
+	 */
+	XFS_MOUNT_ILOCK(mp);
+	ASSERT((ip->i_mnext != NULL) && (ip->i_mprev != NULL));
+	iq = ip->i_mnext;
+	iq->i_mprev = ip->i_mprev;
+	ip->i_mprev->i_mnext = iq;
+
+	/*
+	 * Fix up the head pointer if it points to the inode being deleted.
+	 */
+	if (mp->m_inodes == ip) {
+		if (ip == iq) {
+			mp->m_inodes = NULL;
+		} else {
+			mp->m_inodes = iq;
+		}
+	}
+
+	/* Deal with the deleted inodes list */
+	list_del_init(&ip->i_reclaim);
+
+	mp->m_ireclaims++;
+	XFS_MOUNT_IUNLOCK(mp);
+}
+
+/*
+ * This is a wrapper routine around the xfs_ilock() routine
+ * used to centralize some grungy code.  It is used in places
+ * that wish to lock the inode solely for reading the extents.
+ * The reason these places can't just call xfs_ilock(SHARED)
+ * is that the inode lock also guards to bringing in of the
+ * extents from disk for a file in b-tree format.  If the inode
+ * is in b-tree format, then we need to lock the inode exclusively
+ * until the extents are read in.  Locking it exclusively all
+ * the time would limit our parallelism unnecessarily, though.
+ * What we do instead is check to see if the extents have been
+ * read in yet, and only lock the inode exclusively if they
+ * have not.
+ *
+ * The function returns a value which should be given to the
+ * corresponding xfs_iunlock_map_shared().  This value is
+ * the mode in which the lock was actually taken.
+ */
+uint
+xfs_ilock_map_shared(
+	xfs_inode_t	*ip)
+{
+	uint	lock_mode;
+
+	if ((ip->i_d.di_format == XFS_DINODE_FMT_BTREE) &&
+	    ((ip->i_df.if_flags & XFS_IFEXTENTS) == 0)) {
+		lock_mode = XFS_ILOCK_EXCL;
+	} else {
+		lock_mode = XFS_ILOCK_SHARED;
+	}
+
+	xfs_ilock(ip, lock_mode);
+
+	return lock_mode;
+}
+
+/*
+ * This is simply the unlock routine to go with xfs_ilock_map_shared().
+ * All it does is call xfs_iunlock() with the given lock_mode.
+ */
+void
+xfs_iunlock_map_shared(
+	xfs_inode_t	*ip,
+	unsigned int	lock_mode)
+{
+	xfs_iunlock(ip, lock_mode);
+}
+
+/*
+ * The xfs inode contains 2 locks: a multi-reader lock called the
+ * i_iolock and a multi-reader lock called the i_lock.  This routine
+ * allows either or both of the locks to be obtained.
+ *
+ * The 2 locks should always be ordered so that the IO lock is
+ * obtained first in order to prevent deadlock.
+ *
+ * ip -- the inode being locked
+ * lock_flags -- this parameter indicates the inode's locks
+ *       to be locked.  It can be:
+ *		XFS_IOLOCK_SHARED,
+ *		XFS_IOLOCK_EXCL,
+ *		XFS_ILOCK_SHARED,
+ *		XFS_ILOCK_EXCL,
+ *		XFS_IOLOCK_SHARED | XFS_ILOCK_SHARED,
+ *		XFS_IOLOCK_SHARED | XFS_ILOCK_EXCL,
+ *		XFS_IOLOCK_EXCL | XFS_ILOCK_SHARED,
+ *		XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL
+ */
+void
+xfs_ilock(xfs_inode_t	*ip,
+	  uint		lock_flags)
+{
+	/*
+	 * You can't set both SHARED and EXCL for the same lock,
+	 * and only XFS_IOLOCK_SHARED, XFS_IOLOCK_EXCL, XFS_ILOCK_SHARED,
+	 * and XFS_ILOCK_EXCL are valid values to set in lock_flags.
+	 */
+	ASSERT((lock_flags & (XFS_IOLOCK_SHARED | XFS_IOLOCK_EXCL)) !=
+	       (XFS_IOLOCK_SHARED | XFS_IOLOCK_EXCL));
+	ASSERT((lock_flags & (XFS_ILOCK_SHARED | XFS_ILOCK_EXCL)) !=
+	       (XFS_ILOCK_SHARED | XFS_ILOCK_EXCL));
+	ASSERT((lock_flags & ~XFS_LOCK_MASK) == 0);
+
+	if (lock_flags & XFS_IOLOCK_EXCL) {
+		mrupdate(&ip->i_iolock);
+	} else if (lock_flags & XFS_IOLOCK_SHARED) {
+		mraccess(&ip->i_iolock);
+	}
+	if (lock_flags & XFS_ILOCK_EXCL) {
+		mrupdate(&ip->i_lock);
+	} else if (lock_flags & XFS_ILOCK_SHARED) {
+		mraccess(&ip->i_lock);
+	}
+	xfs_ilock_trace(ip, 1, lock_flags, (inst_t *)__return_address);
+}
+
+/*
+ * This is just like xfs_ilock(), except that the caller
+ * is guaranteed not to sleep.  It returns 1 if it gets
+ * the requested locks and 0 otherwise.  If the IO lock is
+ * obtained but the inode lock cannot be, then the IO lock
+ * is dropped before returning.
+ *
+ * ip -- the inode being locked
+ * lock_flags -- this parameter indicates the inode's locks to be
+ *       to be locked.  See the comment for xfs_ilock() for a list
+ *	 of valid values.
+ *
+ */
+int
+xfs_ilock_nowait(xfs_inode_t	*ip,
+		 uint		lock_flags)
+{
+	int	iolocked;
+	int	ilocked;
+
+	/*
+	 * You can't set both SHARED and EXCL for the same lock,
+	 * and only XFS_IOLOCK_SHARED, XFS_IOLOCK_EXCL, XFS_ILOCK_SHARED,
+	 * and XFS_ILOCK_EXCL are valid values to set in lock_flags.
+	 */
+	ASSERT((lock_flags & (XFS_IOLOCK_SHARED | XFS_IOLOCK_EXCL)) !=
+	       (XFS_IOLOCK_SHARED | XFS_IOLOCK_EXCL));
+	ASSERT((lock_flags & (XFS_ILOCK_SHARED | XFS_ILOCK_EXCL)) !=
+	       (XFS_ILOCK_SHARED | XFS_ILOCK_EXCL));
+	ASSERT((lock_flags & ~XFS_LOCK_MASK) == 0);
+
+	iolocked = 0;
+	if (lock_flags & XFS_IOLOCK_EXCL) {
+		iolocked = mrtryupdate(&ip->i_iolock);
+		if (!iolocked) {
+			return 0;
+		}
+	} else if (lock_flags & XFS_IOLOCK_SHARED) {
+		iolocked = mrtryaccess(&ip->i_iolock);
+		if (!iolocked) {
+			return 0;
+		}
+	}
+	if (lock_flags & XFS_ILOCK_EXCL) {
+		ilocked = mrtryupdate(&ip->i_lock);
+		if (!ilocked) {
+			if (iolocked) {
+				mrunlock(&ip->i_iolock);
+			}
+			return 0;
+		}
+	} else if (lock_flags & XFS_ILOCK_SHARED) {
+		ilocked = mrtryaccess(&ip->i_lock);
+		if (!ilocked) {
+			if (iolocked) {
+				mrunlock(&ip->i_iolock);
+			}
+			return 0;
+		}
+	}
+	xfs_ilock_trace(ip, 2, lock_flags, (inst_t *)__return_address);
+	return 1;
+}
+
+/*
+ * xfs_iunlock() is used to drop the inode locks acquired with
+ * xfs_ilock() and xfs_ilock_nowait().  The caller must pass
+ * in the flags given to xfs_ilock() or xfs_ilock_nowait() so
+ * that we know which locks to drop.
+ *
+ * ip -- the inode being unlocked
+ * lock_flags -- this parameter indicates the inode's locks to be
+ *       to be unlocked.  See the comment for xfs_ilock() for a list
+ *	 of valid values for this parameter.
+ *
+ */
+void
+xfs_iunlock(xfs_inode_t	*ip,
+	    uint	lock_flags)
+{
+	/*
+	 * You can't set both SHARED and EXCL for the same lock,
+	 * and only XFS_IOLOCK_SHARED, XFS_IOLOCK_EXCL, XFS_ILOCK_SHARED,
+	 * and XFS_ILOCK_EXCL are valid values to set in lock_flags.
+	 */
+	ASSERT((lock_flags & (XFS_IOLOCK_SHARED | XFS_IOLOCK_EXCL)) !=
+	       (XFS_IOLOCK_SHARED | XFS_IOLOCK_EXCL));
+	ASSERT((lock_flags & (XFS_ILOCK_SHARED | XFS_ILOCK_EXCL)) !=
+	       (XFS_ILOCK_SHARED | XFS_ILOCK_EXCL));
+	ASSERT((lock_flags & ~(XFS_LOCK_MASK | XFS_IUNLOCK_NONOTIFY)) == 0);
+	ASSERT(lock_flags != 0);
+
+	if (lock_flags & (XFS_IOLOCK_SHARED | XFS_IOLOCK_EXCL)) {
+		ASSERT(!(lock_flags & XFS_IOLOCK_SHARED) ||
+		       (ismrlocked(&ip->i_iolock, MR_ACCESS)));
+		ASSERT(!(lock_flags & XFS_IOLOCK_EXCL) ||
+		       (ismrlocked(&ip->i_iolock, MR_UPDATE)));
+		mrunlock(&ip->i_iolock);
+	}
+
+	if (lock_flags & (XFS_ILOCK_SHARED | XFS_ILOCK_EXCL)) {
+		ASSERT(!(lock_flags & XFS_ILOCK_SHARED) ||
+		       (ismrlocked(&ip->i_lock, MR_ACCESS)));
+		ASSERT(!(lock_flags & XFS_ILOCK_EXCL) ||
+		       (ismrlocked(&ip->i_lock, MR_UPDATE)));
+		mrunlock(&ip->i_lock);
+
+		/*
+		 * Let the AIL know that this item has been unlocked in case
+		 * it is in the AIL and anyone is waiting on it.  Don't do
+		 * this if the caller has asked us not to.
+		 */
+		if (!(lock_flags & XFS_IUNLOCK_NONOTIFY) &&
+		     ip->i_itemp != NULL) {
+			xfs_trans_unlocked_item(ip->i_mount,
+						(xfs_log_item_t*)(ip->i_itemp));
+		}
+	}
+	xfs_ilock_trace(ip, 3, lock_flags, (inst_t *)__return_address);
+}
+
+/*
+ * give up write locks.  the i/o lock cannot be held nested
+ * if it is being demoted.
+ */
+void
+xfs_ilock_demote(xfs_inode_t	*ip,
+		 uint		lock_flags)
+{
+	ASSERT(lock_flags & (XFS_IOLOCK_EXCL|XFS_ILOCK_EXCL));
+	ASSERT((lock_flags & ~(XFS_IOLOCK_EXCL|XFS_ILOCK_EXCL)) == 0);
+
+	if (lock_flags & XFS_ILOCK_EXCL) {
+		ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
+		mrdemote(&ip->i_lock);
+	}
+	if (lock_flags & XFS_IOLOCK_EXCL) {
+		ASSERT(ismrlocked(&ip->i_iolock, MR_UPDATE));
+		mrdemote(&ip->i_iolock);
+	}
+}
+
+/*
+ * The following three routines simply manage the i_flock
+ * semaphore embedded in the inode.  This semaphore synchronizes
+ * processes attempting to flush the in-core inode back to disk.
+ */
+void
+xfs_iflock(xfs_inode_t *ip)
+{
+	psema(&(ip->i_flock), PINOD|PLTWAIT);
+}
+
+int
+xfs_iflock_nowait(xfs_inode_t *ip)
+{
+	return (cpsema(&(ip->i_flock)));
+}
+
+void
+xfs_ifunlock(xfs_inode_t *ip)
+{
+	ASSERT(valusema(&(ip->i_flock)) <= 0);
+	vsema(&(ip->i_flock));
+}
diff --git a/fs/xfs/xfs_imap.h b/fs/xfs/xfs_imap.h
new file mode 100644
index 00000000000000..e385064a066a5f
--- /dev/null
+++ b/fs/xfs/xfs_imap.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_IMAP_H__
+#define	__XFS_IMAP_H__
+
+/*
+ * This is the structure passed to xfs_imap() to map
+ * an inode number to its on disk location.
+ */
+typedef struct xfs_imap {
+	xfs_daddr_t	im_blkno;	/* starting BB of inode chunk */
+	uint		im_len;		/* length in BBs of inode chunk */
+	xfs_agblock_t	im_agblkno;	/* logical block of inode chunk in ag */
+	ushort		im_ioffset;	/* inode offset in block in "inodes" */
+	ushort		im_boffset;	/* inode offset in block in bytes */
+} xfs_imap_t;
+
+#ifdef __KERNEL__
+struct xfs_mount;
+struct xfs_trans;
+int	xfs_imap(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
+		 xfs_imap_t *, uint);
+#endif
+
+#endif	/* __XFS_IMAP_H__ */
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
new file mode 100644
index 00000000000000..5573702347ed6b
--- /dev/null
+++ b/fs/xfs/xfs_inode.c
@@ -0,0 +1,3875 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_trans_priv.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_imap.h"
+#include "xfs_alloc.h"
+#include "xfs_ialloc.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode_item.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_buf_item.h"
+#include "xfs_rw.h"
+#include "xfs_error.h"
+#include "xfs_bit.h"
+#include "xfs_utils.h"
+#include "xfs_dir2_trace.h"
+#include "xfs_quota.h"
+#include "xfs_mac.h"
+#include "xfs_acl.h"
+
+
+kmem_zone_t *xfs_ifork_zone;
+kmem_zone_t *xfs_inode_zone;
+kmem_zone_t *xfs_chashlist_zone;
+
+/*
+ * Used in xfs_itruncate().  This is the maximum number of extents
+ * freed from a file in a single transaction.
+ */
+#define	XFS_ITRUNC_MAX_EXTENTS	2
+
+STATIC int xfs_iflush_int(xfs_inode_t *, xfs_buf_t *);
+STATIC int xfs_iformat_local(xfs_inode_t *, xfs_dinode_t *, int, int);
+STATIC int xfs_iformat_extents(xfs_inode_t *, xfs_dinode_t *, int);
+STATIC int xfs_iformat_btree(xfs_inode_t *, xfs_dinode_t *, int);
+
+
+#ifdef DEBUG
+/*
+ * Make sure that the extents in the given memory buffer
+ * are valid.
+ */
+STATIC void
+xfs_validate_extents(
+	xfs_bmbt_rec_t		*ep,
+	int			nrecs,
+	int			disk,
+	xfs_exntfmt_t		fmt)
+{
+	xfs_bmbt_irec_t		irec;
+	xfs_bmbt_rec_t		rec;
+	int			i;
+
+	for (i = 0; i < nrecs; i++) {
+		rec.l0 = get_unaligned((__uint64_t*)&ep->l0);
+		rec.l1 = get_unaligned((__uint64_t*)&ep->l1);
+		if (disk)
+			xfs_bmbt_disk_get_all(&rec, &irec);
+		else
+			xfs_bmbt_get_all(&rec, &irec);
+		if (fmt == XFS_EXTFMT_NOSTATE)
+			ASSERT(irec.br_state == XFS_EXT_NORM);
+		ep++;
+	}
+}
+#else /* DEBUG */
+#define xfs_validate_extents(ep, nrecs, disk, fmt)
+#endif /* DEBUG */
+
+/*
+ * Check that none of the inode's in the buffer have a next
+ * unlinked field of 0.
+ */
+#if defined(DEBUG)
+void
+xfs_inobp_check(
+	xfs_mount_t	*mp,
+	xfs_buf_t	*bp)
+{
+	int		i;
+	int		j;
+	xfs_dinode_t	*dip;
+
+	j = mp->m_inode_cluster_size >> mp->m_sb.sb_inodelog;
+
+	for (i = 0; i < j; i++) {
+		dip = (xfs_dinode_t *)xfs_buf_offset(bp,
+					i * mp->m_sb.sb_inodesize);
+		if (INT_ISZERO(dip->di_next_unlinked, ARCH_CONVERT))  {
+			xfs_fs_cmn_err(CE_ALERT, mp,
+				"Detected a bogus zero next_unlinked field in incore inode buffer 0x%p.  About to pop an ASSERT.",
+				bp);
+			ASSERT(!INT_ISZERO(dip->di_next_unlinked, ARCH_CONVERT));
+		}
+	}
+}
+#endif
+
+/*
+ * called from bwrite on xfs inode buffers
+ */
+void
+xfs_inobp_bwcheck(xfs_buf_t *bp)
+{
+	xfs_mount_t	*mp;
+	int		i;
+	int		j;
+	xfs_dinode_t	*dip;
+
+	ASSERT(XFS_BUF_FSPRIVATE3(bp, void *) != NULL);
+
+	mp = XFS_BUF_FSPRIVATE3(bp, xfs_mount_t *);
+
+
+	j = mp->m_inode_cluster_size >> mp->m_sb.sb_inodelog;
+
+	for (i = 0; i < j; i++)  {
+		dip = (xfs_dinode_t *) xfs_buf_offset(bp,
+						i * mp->m_sb.sb_inodesize);
+		if (INT_GET(dip->di_core.di_magic, ARCH_CONVERT) != XFS_DINODE_MAGIC) {
+			cmn_err(CE_WARN,
+"Bad magic # 0x%x in XFS inode buffer 0x%Lx, starting blockno %Ld, offset 0x%x",
+				INT_GET(dip->di_core.di_magic, ARCH_CONVERT),
+				(__uint64_t)(__psunsigned_t) bp,
+				(__int64_t) XFS_BUF_ADDR(bp),
+				xfs_buf_offset(bp, i * mp->m_sb.sb_inodesize));
+			xfs_fs_cmn_err(CE_WARN, mp,
+				"corrupt, unmount and run xfs_repair");
+		}
+		if (INT_ISZERO(dip->di_next_unlinked, ARCH_CONVERT))  {
+			cmn_err(CE_WARN,
+"Bad next_unlinked field (0) in XFS inode buffer 0x%p, starting blockno %Ld, offset 0x%x",
+				(__uint64_t)(__psunsigned_t) bp,
+				(__int64_t) XFS_BUF_ADDR(bp),
+				xfs_buf_offset(bp, i * mp->m_sb.sb_inodesize));
+			xfs_fs_cmn_err(CE_WARN, mp,
+				"corrupt, unmount and run xfs_repair");
+		}
+	}
+
+	return;
+}
+
+/*
+ * This routine is called to map an inode number within a file
+ * system to the buffer containing the on-disk version of the
+ * inode.  It returns a pointer to the buffer containing the
+ * on-disk inode in the bpp parameter, and in the dip parameter
+ * it returns a pointer to the on-disk inode within that buffer.
+ *
+ * If a non-zero error is returned, then the contents of bpp and
+ * dipp are undefined.
+ *
+ * Use xfs_imap() to determine the size and location of the
+ * buffer to read from disk.
+ */
+int
+xfs_inotobp(
+	xfs_mount_t	*mp,
+	xfs_trans_t	*tp,
+	xfs_ino_t	ino,
+	xfs_dinode_t	**dipp,
+	xfs_buf_t	**bpp,
+	int		*offset)
+{
+	int		di_ok;
+	xfs_imap_t	imap;
+	xfs_buf_t	*bp;
+	int		error;
+	xfs_dinode_t	*dip;
+
+	/*
+	 * Call the space managment code to find the location of the
+	 * inode on disk.
+	 */
+	imap.im_blkno = 0;
+	error = xfs_imap(mp, tp, ino, &imap, XFS_IMAP_LOOKUP);
+	if (error != 0) {
+		cmn_err(CE_WARN,
+	"xfs_inotobp: xfs_imap()  returned an "
+	"error %d on %s.  Returning error.", error, mp->m_fsname);
+		return error;
+	}
+
+	/*
+	 * If the inode number maps to a block outside the bounds of the
+	 * file system then return NULL rather than calling read_buf
+	 * and panicing when we get an error from the driver.
+	 */
+	if ((imap.im_blkno + imap.im_len) >
+	    XFS_FSB_TO_BB(mp, mp->m_sb.sb_dblocks)) {
+		cmn_err(CE_WARN,
+	"xfs_inotobp: inode number (%d + %d) maps to a block outside the bounds "
+	"of the file system %s.  Returning EINVAL.",
+			imap.im_blkno, imap.im_len,mp->m_fsname);
+		return XFS_ERROR(EINVAL);
+	}
+
+	/*
+	 * Read in the buffer.  If tp is NULL, xfs_trans_read_buf() will
+	 * default to just a read_buf() call.
+	 */
+	error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp, imap.im_blkno,
+				   (int)imap.im_len, XFS_BUF_LOCK, &bp);
+
+	if (error) {
+		cmn_err(CE_WARN,
+	"xfs_inotobp: xfs_trans_read_buf()  returned an "
+	"error %d on %s.  Returning error.", error, mp->m_fsname);
+		return error;
+	}
+	dip = (xfs_dinode_t *)xfs_buf_offset(bp, 0);
+	di_ok =
+		INT_GET(dip->di_core.di_magic, ARCH_CONVERT) == XFS_DINODE_MAGIC &&
+		XFS_DINODE_GOOD_VERSION(INT_GET(dip->di_core.di_version, ARCH_CONVERT));
+	if (unlikely(XFS_TEST_ERROR(!di_ok, mp, XFS_ERRTAG_ITOBP_INOTOBP,
+			XFS_RANDOM_ITOBP_INOTOBP))) {
+		XFS_CORRUPTION_ERROR("xfs_inotobp", XFS_ERRLEVEL_LOW, mp, dip);
+		xfs_trans_brelse(tp, bp);
+		cmn_err(CE_WARN,
+	"xfs_inotobp: XFS_TEST_ERROR()  returned an "
+	"error on %s.  Returning EFSCORRUPTED.",  mp->m_fsname);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+
+	xfs_inobp_check(mp, bp);
+
+	/*
+	 * Set *dipp to point to the on-disk inode in the buffer.
+	 */
+	*dipp = (xfs_dinode_t *)xfs_buf_offset(bp, imap.im_boffset);
+	*bpp = bp;
+	*offset = imap.im_boffset;
+	return 0;
+}
+
+
+/*
+ * This routine is called to map an inode to the buffer containing
+ * the on-disk version of the inode.  It returns a pointer to the
+ * buffer containing the on-disk inode in the bpp parameter, and in
+ * the dip parameter it returns a pointer to the on-disk inode within
+ * that buffer.
+ *
+ * If a non-zero error is returned, then the contents of bpp and
+ * dipp are undefined.
+ *
+ * If the inode is new and has not yet been initialized, use xfs_imap()
+ * to determine the size and location of the buffer to read from disk.
+ * If the inode has already been mapped to its buffer and read in once,
+ * then use the mapping information stored in the inode rather than
+ * calling xfs_imap().  This allows us to avoid the overhead of looking
+ * at the inode btree for small block file systems (see xfs_dilocate()).
+ * We can tell whether the inode has been mapped in before by comparing
+ * its disk block address to 0.  Only uninitialized inodes will have
+ * 0 for the disk block address.
+ */
+int
+xfs_itobp(
+	xfs_mount_t	*mp,
+	xfs_trans_t	*tp,
+	xfs_inode_t	*ip,
+	xfs_dinode_t	**dipp,
+	xfs_buf_t	**bpp,
+	xfs_daddr_t	bno)
+{
+	xfs_buf_t	*bp;
+	int		error;
+	xfs_imap_t	imap;
+#ifdef __KERNEL__
+	int		i;
+	int		ni;
+#endif
+
+	if (ip->i_blkno == (xfs_daddr_t)0) {
+		/*
+		 * Call the space management code to find the location of the
+		 * inode on disk.
+		 */
+		imap.im_blkno = bno;
+		error = xfs_imap(mp, tp, ip->i_ino, &imap, XFS_IMAP_LOOKUP);
+		if (error != 0) {
+			return error;
+		}
+
+		/*
+		 * If the inode number maps to a block outside the bounds
+		 * of the file system then return NULL rather than calling
+		 * read_buf and panicing when we get an error from the
+		 * driver.
+		 */
+		if ((imap.im_blkno + imap.im_len) >
+		    XFS_FSB_TO_BB(mp, mp->m_sb.sb_dblocks)) {
+#ifdef DEBUG
+			xfs_fs_cmn_err(CE_ALERT, mp, "xfs_itobp: "
+					"(imap.im_blkno (0x%llx) "
+					"+ imap.im_len (0x%llx)) > "
+					" XFS_FSB_TO_BB(mp, "
+					"mp->m_sb.sb_dblocks) (0x%llx)",
+					(unsigned long long) imap.im_blkno,
+					(unsigned long long) imap.im_len,
+					XFS_FSB_TO_BB(mp, mp->m_sb.sb_dblocks));
+#endif /* DEBUG */
+			return XFS_ERROR(EINVAL);
+		}
+
+		/*
+		 * Fill in the fields in the inode that will be used to
+		 * map the inode to its buffer from now on.
+		 */
+		ip->i_blkno = imap.im_blkno;
+		ip->i_len = imap.im_len;
+		ip->i_boffset = imap.im_boffset;
+	} else {
+		/*
+		 * We've already mapped the inode once, so just use the
+		 * mapping that we saved the first time.
+		 */
+		imap.im_blkno = ip->i_blkno;
+		imap.im_len = ip->i_len;
+		imap.im_boffset = ip->i_boffset;
+	}
+	ASSERT(bno == 0 || bno == imap.im_blkno);
+
+	/*
+	 * Read in the buffer.  If tp is NULL, xfs_trans_read_buf() will
+	 * default to just a read_buf() call.
+	 */
+	error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp, imap.im_blkno,
+				   (int)imap.im_len, XFS_BUF_LOCK, &bp);
+
+	if (error) {
+#ifdef DEBUG
+		xfs_fs_cmn_err(CE_ALERT, mp, "xfs_itobp: "
+				"xfs_trans_read_buf() returned error %d, "
+				"imap.im_blkno 0x%llx, imap.im_len 0x%llx",
+				error, (unsigned long long) imap.im_blkno,
+				(unsigned long long) imap.im_len);
+#endif /* DEBUG */
+		return error;
+	}
+#ifdef __KERNEL__
+	/*
+	 * Validate the magic number and version of every inode in the buffer
+	 * (if DEBUG kernel) or the first inode in the buffer, otherwise.
+	 */
+#ifdef DEBUG
+	ni = BBTOB(imap.im_len) >> mp->m_sb.sb_inodelog;
+#else
+	ni = 1;
+#endif
+	for (i = 0; i < ni; i++) {
+		int		di_ok;
+		xfs_dinode_t	*dip;
+
+		dip = (xfs_dinode_t *)xfs_buf_offset(bp,
+					(i << mp->m_sb.sb_inodelog));
+		di_ok = INT_GET(dip->di_core.di_magic, ARCH_CONVERT) == XFS_DINODE_MAGIC &&
+			    XFS_DINODE_GOOD_VERSION(INT_GET(dip->di_core.di_version, ARCH_CONVERT));
+		if (unlikely(XFS_TEST_ERROR(!di_ok, mp, XFS_ERRTAG_ITOBP_INOTOBP,
+				 XFS_RANDOM_ITOBP_INOTOBP))) {
+#ifdef DEBUG
+			prdev("bad inode magic/vsn daddr %lld #%d (magic=%x)",
+				mp->m_ddev_targp,
+				(unsigned long long)imap.im_blkno, i,
+				INT_GET(dip->di_core.di_magic, ARCH_CONVERT));
+#endif
+			XFS_CORRUPTION_ERROR("xfs_itobp", XFS_ERRLEVEL_HIGH,
+					     mp, dip);
+			xfs_trans_brelse(tp, bp);
+			return XFS_ERROR(EFSCORRUPTED);
+		}
+	}
+#endif	/* __KERNEL__ */
+
+	xfs_inobp_check(mp, bp);
+
+	/*
+	 * Mark the buffer as an inode buffer now that it looks good
+	 */
+	XFS_BUF_SET_VTYPE(bp, B_FS_INO);
+
+	/*
+	 * Set *dipp to point to the on-disk inode in the buffer.
+	 */
+	*dipp = (xfs_dinode_t *)xfs_buf_offset(bp, imap.im_boffset);
+	*bpp = bp;
+	return 0;
+}
+
+/*
+ * Move inode type and inode format specific information from the
+ * on-disk inode to the in-core inode.  For fifos, devs, and sockets
+ * this means set if_rdev to the proper value.  For files, directories,
+ * and symlinks this means to bring in the in-line data or extent
+ * pointers.  For a file in B-tree format, only the root is immediately
+ * brought in-core.  The rest will be in-lined in if_extents when it
+ * is first referenced (see xfs_iread_extents()).
+ */
+STATIC int
+xfs_iformat(
+	xfs_inode_t		*ip,
+	xfs_dinode_t		*dip)
+{
+	xfs_attr_shortform_t	*atp;
+	int			size;
+	int			error;
+	xfs_fsize_t             di_size;
+	ip->i_df.if_ext_max =
+		XFS_IFORK_DSIZE(ip) / (uint)sizeof(xfs_bmbt_rec_t);
+	error = 0;
+
+	if (unlikely(
+	    INT_GET(dip->di_core.di_nextents, ARCH_CONVERT) +
+		INT_GET(dip->di_core.di_anextents, ARCH_CONVERT) >
+	    INT_GET(dip->di_core.di_nblocks, ARCH_CONVERT))) {
+		xfs_fs_cmn_err(CE_WARN, ip->i_mount,
+			"corrupt dinode %Lu, extent total = %d, nblocks = %Lu."
+			"  Unmount and run xfs_repair.",
+			(unsigned long long)ip->i_ino,
+			(int)(INT_GET(dip->di_core.di_nextents, ARCH_CONVERT)
+			    + INT_GET(dip->di_core.di_anextents, ARCH_CONVERT)),
+			(unsigned long long)
+			INT_GET(dip->di_core.di_nblocks, ARCH_CONVERT));
+		XFS_CORRUPTION_ERROR("xfs_iformat(1)", XFS_ERRLEVEL_LOW,
+				     ip->i_mount, dip);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+
+	if (unlikely(INT_GET(dip->di_core.di_forkoff, ARCH_CONVERT) > ip->i_mount->m_sb.sb_inodesize)) {
+		xfs_fs_cmn_err(CE_WARN, ip->i_mount,
+			"corrupt dinode %Lu, forkoff = 0x%x."
+			"  Unmount and run xfs_repair.",
+			(unsigned long long)ip->i_ino,
+			(int)(INT_GET(dip->di_core.di_forkoff, ARCH_CONVERT)));
+		XFS_CORRUPTION_ERROR("xfs_iformat(2)", XFS_ERRLEVEL_LOW,
+				     ip->i_mount, dip);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+
+	switch (ip->i_d.di_mode & S_IFMT) {
+	case S_IFIFO:
+	case S_IFCHR:
+	case S_IFBLK:
+	case S_IFSOCK:
+		if (unlikely(INT_GET(dip->di_core.di_format, ARCH_CONVERT) != XFS_DINODE_FMT_DEV)) {
+			XFS_CORRUPTION_ERROR("xfs_iformat(3)", XFS_ERRLEVEL_LOW,
+					      ip->i_mount, dip);
+			return XFS_ERROR(EFSCORRUPTED);
+		}
+		ip->i_d.di_size = 0;
+		ip->i_df.if_u2.if_rdev = INT_GET(dip->di_u.di_dev, ARCH_CONVERT);
+		break;
+
+	case S_IFREG:
+	case S_IFLNK:
+	case S_IFDIR:
+		switch (INT_GET(dip->di_core.di_format, ARCH_CONVERT)) {
+		case XFS_DINODE_FMT_LOCAL:
+			/*
+			 * no local regular files yet
+			 */
+			if (unlikely((INT_GET(dip->di_core.di_mode, ARCH_CONVERT) & S_IFMT) == S_IFREG)) {
+				xfs_fs_cmn_err(CE_WARN, ip->i_mount,
+					"corrupt inode (local format for regular file) %Lu.  Unmount and run xfs_repair.",
+					(unsigned long long) ip->i_ino);
+				XFS_CORRUPTION_ERROR("xfs_iformat(4)",
+						     XFS_ERRLEVEL_LOW,
+						     ip->i_mount, dip);
+				return XFS_ERROR(EFSCORRUPTED);
+			}
+
+			di_size = INT_GET(dip->di_core.di_size, ARCH_CONVERT);
+			if (unlikely(di_size >
+			    XFS_DFORK_DSIZE_ARCH(dip, ip->i_mount, ARCH_CONVERT))) {
+				xfs_fs_cmn_err(CE_WARN, ip->i_mount,
+					"corrupt inode %Lu (bad size %Ld for local inode).  Unmount and run xfs_repair.",
+					(unsigned long long) ip->i_ino,
+					(long long) di_size);
+				XFS_CORRUPTION_ERROR("xfs_iformat(5)",
+						     XFS_ERRLEVEL_LOW,
+						     ip->i_mount, dip);
+				return XFS_ERROR(EFSCORRUPTED);
+			}
+
+			size = (int)di_size;
+			error = xfs_iformat_local(ip, dip, XFS_DATA_FORK, size);
+			break;
+		case XFS_DINODE_FMT_EXTENTS:
+			error = xfs_iformat_extents(ip, dip, XFS_DATA_FORK);
+			break;
+		case XFS_DINODE_FMT_BTREE:
+			error = xfs_iformat_btree(ip, dip, XFS_DATA_FORK);
+			break;
+		default:
+			XFS_ERROR_REPORT("xfs_iformat(6)", XFS_ERRLEVEL_LOW,
+					 ip->i_mount);
+			return XFS_ERROR(EFSCORRUPTED);
+		}
+		break;
+
+	default:
+		XFS_ERROR_REPORT("xfs_iformat(7)", XFS_ERRLEVEL_LOW, ip->i_mount);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+	if (error) {
+		return error;
+	}
+	if (!XFS_DFORK_Q_ARCH(dip, ARCH_CONVERT))
+		return 0;
+	ASSERT(ip->i_afp == NULL);
+	ip->i_afp = kmem_zone_zalloc(xfs_ifork_zone, KM_SLEEP);
+	ip->i_afp->if_ext_max =
+		XFS_IFORK_ASIZE(ip) / (uint)sizeof(xfs_bmbt_rec_t);
+	switch (INT_GET(dip->di_core.di_aformat, ARCH_CONVERT)) {
+	case XFS_DINODE_FMT_LOCAL:
+		atp = (xfs_attr_shortform_t *)XFS_DFORK_APTR_ARCH(dip, ARCH_CONVERT);
+		size = (int)INT_GET(atp->hdr.totsize, ARCH_CONVERT);
+		error = xfs_iformat_local(ip, dip, XFS_ATTR_FORK, size);
+		break;
+	case XFS_DINODE_FMT_EXTENTS:
+		error = xfs_iformat_extents(ip, dip, XFS_ATTR_FORK);
+		break;
+	case XFS_DINODE_FMT_BTREE:
+		error = xfs_iformat_btree(ip, dip, XFS_ATTR_FORK);
+		break;
+	default:
+		error = XFS_ERROR(EFSCORRUPTED);
+		break;
+	}
+	if (error) {
+		kmem_zone_free(xfs_ifork_zone, ip->i_afp);
+		ip->i_afp = NULL;
+		xfs_idestroy_fork(ip, XFS_DATA_FORK);
+	}
+	return error;
+}
+
+/*
+ * The file is in-lined in the on-disk inode.
+ * If it fits into if_inline_data, then copy
+ * it there, otherwise allocate a buffer for it
+ * and copy the data there.  Either way, set
+ * if_data to point at the data.
+ * If we allocate a buffer for the data, make
+ * sure that its size is a multiple of 4 and
+ * record the real size in i_real_bytes.
+ */
+STATIC int
+xfs_iformat_local(
+	xfs_inode_t	*ip,
+	xfs_dinode_t	*dip,
+	int		whichfork,
+	int		size)
+{
+	xfs_ifork_t	*ifp;
+	int		real_size;
+
+	/*
+	 * If the size is unreasonable, then something
+	 * is wrong and we just bail out rather than crash in
+	 * kmem_alloc() or memcpy() below.
+	 */
+	if (unlikely(size > XFS_DFORK_SIZE_ARCH(dip, ip->i_mount, whichfork, ARCH_CONVERT))) {
+		xfs_fs_cmn_err(CE_WARN, ip->i_mount,
+			"corrupt inode %Lu (bad size %d for local fork, size = %d).  Unmount and run xfs_repair.",
+			(unsigned long long) ip->i_ino, size,
+			XFS_DFORK_SIZE_ARCH(dip, ip->i_mount, whichfork, ARCH_CONVERT));
+		XFS_CORRUPTION_ERROR("xfs_iformat_local", XFS_ERRLEVEL_LOW,
+				     ip->i_mount, dip);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	real_size = 0;
+	if (size == 0)
+		ifp->if_u1.if_data = NULL;
+	else if (size <= sizeof(ifp->if_u2.if_inline_data))
+		ifp->if_u1.if_data = ifp->if_u2.if_inline_data;
+	else {
+		real_size = roundup(size, 4);
+		ifp->if_u1.if_data = kmem_alloc(real_size, KM_SLEEP);
+	}
+	ifp->if_bytes = size;
+	ifp->if_real_bytes = real_size;
+	if (size)
+		memcpy(ifp->if_u1.if_data,
+			XFS_DFORK_PTR_ARCH(dip, whichfork, ARCH_CONVERT), size);
+	ifp->if_flags &= ~XFS_IFEXTENTS;
+	ifp->if_flags |= XFS_IFINLINE;
+	return 0;
+}
+
+/*
+ * The file consists of a set of extents all
+ * of which fit into the on-disk inode.
+ * If there are few enough extents to fit into
+ * the if_inline_ext, then copy them there.
+ * Otherwise allocate a buffer for them and copy
+ * them into it.  Either way, set if_extents
+ * to point at the extents.
+ */
+STATIC int
+xfs_iformat_extents(
+	xfs_inode_t	*ip,
+	xfs_dinode_t	*dip,
+	int		whichfork)
+{
+	xfs_bmbt_rec_t	*ep, *dp;
+	xfs_ifork_t	*ifp;
+	int		nex;
+	int		real_size;
+	int		size;
+	int		i;
+
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	nex = XFS_DFORK_NEXTENTS_ARCH(dip, whichfork, ARCH_CONVERT);
+	size = nex * (uint)sizeof(xfs_bmbt_rec_t);
+
+	/*
+	 * If the number of extents is unreasonable, then something
+	 * is wrong and we just bail out rather than crash in
+	 * kmem_alloc() or memcpy() below.
+	 */
+	if (unlikely(size < 0 || size > XFS_DFORK_SIZE_ARCH(dip, ip->i_mount, whichfork, ARCH_CONVERT))) {
+		xfs_fs_cmn_err(CE_WARN, ip->i_mount,
+			"corrupt inode %Lu ((a)extents = %d).  Unmount and run xfs_repair.",
+			(unsigned long long) ip->i_ino, nex);
+		XFS_CORRUPTION_ERROR("xfs_iformat_extents(1)", XFS_ERRLEVEL_LOW,
+				     ip->i_mount, dip);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+
+	real_size = 0;
+	if (nex == 0)
+		ifp->if_u1.if_extents = NULL;
+	else if (nex <= XFS_INLINE_EXTS)
+		ifp->if_u1.if_extents = ifp->if_u2.if_inline_ext;
+	else {
+		ifp->if_u1.if_extents = kmem_alloc(size, KM_SLEEP);
+		ASSERT(ifp->if_u1.if_extents != NULL);
+		real_size = size;
+	}
+	ifp->if_bytes = size;
+	ifp->if_real_bytes = real_size;
+	if (size) {
+		dp = (xfs_bmbt_rec_t *)
+			XFS_DFORK_PTR_ARCH(dip, whichfork, ARCH_CONVERT);
+		xfs_validate_extents(dp, nex, 1, XFS_EXTFMT_INODE(ip));
+		ep = ifp->if_u1.if_extents;
+		for (i = 0; i < nex; i++, ep++, dp++) {
+			ep->l0 = INT_GET(get_unaligned((__uint64_t*)&dp->l0),
+								ARCH_CONVERT);
+			ep->l1 = INT_GET(get_unaligned((__uint64_t*)&dp->l1),
+								ARCH_CONVERT);
+		}
+		xfs_bmap_trace_exlist("xfs_iformat_extents", ip, nex,
+			whichfork);
+		if (whichfork != XFS_DATA_FORK ||
+			XFS_EXTFMT_INODE(ip) == XFS_EXTFMT_NOSTATE)
+				if (unlikely(xfs_check_nostate_extents(
+				    ifp->if_u1.if_extents, nex))) {
+					XFS_ERROR_REPORT("xfs_iformat_extents(2)",
+							 XFS_ERRLEVEL_LOW,
+							 ip->i_mount);
+					return XFS_ERROR(EFSCORRUPTED);
+				}
+	}
+	ifp->if_flags |= XFS_IFEXTENTS;
+	return 0;
+}
+
+/*
+ * The file has too many extents to fit into
+ * the inode, so they are in B-tree format.
+ * Allocate a buffer for the root of the B-tree
+ * and copy the root into it.  The i_extents
+ * field will remain NULL until all of the
+ * extents are read in (when they are needed).
+ */
+STATIC int
+xfs_iformat_btree(
+	xfs_inode_t		*ip,
+	xfs_dinode_t		*dip,
+	int			whichfork)
+{
+	xfs_bmdr_block_t	*dfp;
+	xfs_ifork_t		*ifp;
+	/* REFERENCED */
+	int			nrecs;
+	int			size;
+
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	dfp = (xfs_bmdr_block_t *)XFS_DFORK_PTR_ARCH(dip, whichfork, ARCH_CONVERT);
+	size = XFS_BMAP_BROOT_SPACE(dfp);
+	nrecs = XFS_BMAP_BROOT_NUMRECS(dfp);
+
+	/*
+	 * blow out if -- fork has less extents than can fit in
+	 * fork (fork shouldn't be a btree format), root btree
+	 * block has more records than can fit into the fork,
+	 * or the number of extents is greater than the number of
+	 * blocks.
+	 */
+	if (unlikely(XFS_IFORK_NEXTENTS(ip, whichfork) <= ifp->if_ext_max
+	    || XFS_BMDR_SPACE_CALC(nrecs) >
+			XFS_DFORK_SIZE_ARCH(dip, ip->i_mount, whichfork, ARCH_CONVERT)
+	    || XFS_IFORK_NEXTENTS(ip, whichfork) > ip->i_d.di_nblocks)) {
+		xfs_fs_cmn_err(CE_WARN, ip->i_mount,
+			"corrupt inode %Lu (btree).  Unmount and run xfs_repair.",
+			(unsigned long long) ip->i_ino);
+		XFS_ERROR_REPORT("xfs_iformat_btree", XFS_ERRLEVEL_LOW,
+				 ip->i_mount);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+
+	ifp->if_broot_bytes = size;
+	ifp->if_broot = kmem_alloc(size, KM_SLEEP);
+	ASSERT(ifp->if_broot != NULL);
+	/*
+	 * Copy and convert from the on-disk structure
+	 * to the in-memory structure.
+	 */
+	xfs_bmdr_to_bmbt(dfp, XFS_DFORK_SIZE_ARCH(dip, ip->i_mount, whichfork, ARCH_CONVERT),
+		ifp->if_broot, size);
+	ifp->if_flags &= ~XFS_IFEXTENTS;
+	ifp->if_flags |= XFS_IFBROOT;
+
+	return 0;
+}
+
+/*
+ * xfs_xlate_dinode_core - translate an xfs_inode_core_t between ondisk
+ * and native format
+ *
+ * buf  = on-disk representation
+ * dip  = native representation
+ * dir  = direction - +ve -> disk to native
+ *                    -ve -> native to disk
+ * arch = on-disk architecture
+ */
+void
+xfs_xlate_dinode_core(
+	xfs_caddr_t		buf,
+	xfs_dinode_core_t	*dip,
+	int			dir,
+	xfs_arch_t		arch)
+{
+	xfs_dinode_core_t	*buf_core = (xfs_dinode_core_t *)buf;
+	xfs_dinode_core_t	*mem_core = (xfs_dinode_core_t *)dip;
+
+	ASSERT(dir);
+	if (arch == ARCH_NOCONVERT) {
+		if (dir > 0) {
+			memcpy((xfs_caddr_t)mem_core, (xfs_caddr_t)buf_core,
+				sizeof(xfs_dinode_core_t));
+		} else {
+			memcpy((xfs_caddr_t)buf_core, (xfs_caddr_t)mem_core,
+				sizeof(xfs_dinode_core_t));
+		}
+		return;
+	}
+
+	INT_XLATE(buf_core->di_magic, mem_core->di_magic, dir, arch);
+	INT_XLATE(buf_core->di_mode, mem_core->di_mode, dir, arch);
+	INT_XLATE(buf_core->di_version,	mem_core->di_version, dir, arch);
+	INT_XLATE(buf_core->di_format, mem_core->di_format, dir, arch);
+	INT_XLATE(buf_core->di_onlink, mem_core->di_onlink, dir, arch);
+	INT_XLATE(buf_core->di_uid, mem_core->di_uid, dir, arch);
+	INT_XLATE(buf_core->di_gid, mem_core->di_gid, dir, arch);
+	INT_XLATE(buf_core->di_nlink, mem_core->di_nlink, dir, arch);
+	INT_XLATE(buf_core->di_projid, mem_core->di_projid, dir, arch);
+
+	if (dir > 0) {
+		memcpy(mem_core->di_pad, buf_core->di_pad,
+			sizeof(buf_core->di_pad));
+	} else {
+		memcpy(buf_core->di_pad, mem_core->di_pad,
+			sizeof(buf_core->di_pad));
+	}
+
+	INT_XLATE(buf_core->di_flushiter, mem_core->di_flushiter, dir, arch);
+
+	INT_XLATE(buf_core->di_atime.t_sec, mem_core->di_atime.t_sec,
+			dir, arch);
+	INT_XLATE(buf_core->di_atime.t_nsec, mem_core->di_atime.t_nsec,
+			dir, arch);
+	INT_XLATE(buf_core->di_mtime.t_sec, mem_core->di_mtime.t_sec,
+			dir, arch);
+	INT_XLATE(buf_core->di_mtime.t_nsec, mem_core->di_mtime.t_nsec,
+			dir, arch);
+	INT_XLATE(buf_core->di_ctime.t_sec, mem_core->di_ctime.t_sec,
+			dir, arch);
+	INT_XLATE(buf_core->di_ctime.t_nsec, mem_core->di_ctime.t_nsec,
+			dir, arch);
+	INT_XLATE(buf_core->di_size, mem_core->di_size, dir, arch);
+	INT_XLATE(buf_core->di_nblocks, mem_core->di_nblocks, dir, arch);
+	INT_XLATE(buf_core->di_extsize, mem_core->di_extsize, dir, arch);
+	INT_XLATE(buf_core->di_nextents, mem_core->di_nextents, dir, arch);
+	INT_XLATE(buf_core->di_anextents, mem_core->di_anextents, dir, arch);
+	INT_XLATE(buf_core->di_forkoff, mem_core->di_forkoff, dir, arch);
+	INT_XLATE(buf_core->di_aformat, mem_core->di_aformat, dir, arch);
+	INT_XLATE(buf_core->di_dmevmask, mem_core->di_dmevmask, dir, arch);
+	INT_XLATE(buf_core->di_dmstate, mem_core->di_dmstate, dir, arch);
+	INT_XLATE(buf_core->di_flags, mem_core->di_flags, dir, arch);
+	INT_XLATE(buf_core->di_gen, mem_core->di_gen, dir, arch);
+}
+
+uint
+xfs_dic2xflags(
+	xfs_dinode_core_t	*dic,
+	xfs_arch_t		arch)
+{
+	__uint16_t		di_flags;
+	uint			flags;
+
+	di_flags = INT_GET(dic->di_flags, arch);
+	flags = XFS_CFORK_Q_ARCH(dic, arch) ? XFS_XFLAG_HASATTR : 0;
+	if (di_flags & XFS_DIFLAG_ANY) {
+		if (di_flags & XFS_DIFLAG_REALTIME)
+			flags |= XFS_XFLAG_REALTIME;
+		if (di_flags & XFS_DIFLAG_PREALLOC)
+			flags |= XFS_XFLAG_PREALLOC;
+		if (di_flags & XFS_DIFLAG_IMMUTABLE)
+			flags |= XFS_XFLAG_IMMUTABLE;
+		if (di_flags & XFS_DIFLAG_APPEND)
+			flags |= XFS_XFLAG_APPEND;
+		if (di_flags & XFS_DIFLAG_SYNC)
+			flags |= XFS_XFLAG_SYNC;
+		if (di_flags & XFS_DIFLAG_NOATIME)
+			flags |= XFS_XFLAG_NOATIME;
+		if (di_flags & XFS_DIFLAG_NODUMP)
+			flags |= XFS_XFLAG_NODUMP;
+		if (di_flags & XFS_DIFLAG_RTINHERIT)
+			flags |= XFS_XFLAG_RTINHERIT;
+		if (di_flags & XFS_DIFLAG_PROJINHERIT)
+			flags |= XFS_XFLAG_PROJINHERIT;
+		if (di_flags & XFS_DIFLAG_NOSYMLINKS)
+			flags |= XFS_XFLAG_NOSYMLINKS;
+	}
+	return flags;
+}
+
+/*
+ * Given a mount structure and an inode number, return a pointer
+ * to a newly allocated in-core inode coresponding to the given
+ * inode number.
+ *
+ * Initialize the inode's attributes and extent pointers if it
+ * already has them (it will not if the inode has no links).
+ */
+int
+xfs_iread(
+	xfs_mount_t	*mp,
+	xfs_trans_t	*tp,
+	xfs_ino_t	ino,
+	xfs_inode_t	**ipp,
+	xfs_daddr_t	bno)
+{
+	xfs_buf_t	*bp;
+	xfs_dinode_t	*dip;
+	xfs_inode_t	*ip;
+	int		error;
+
+	ASSERT(xfs_inode_zone != NULL);
+
+	ip = kmem_zone_zalloc(xfs_inode_zone, KM_SLEEP);
+	ip->i_ino = ino;
+	ip->i_mount = mp;
+
+	/*
+	 * Get pointer's to the on-disk inode and the buffer containing it.
+	 * If the inode number refers to a block outside the file system
+	 * then xfs_itobp() will return NULL.  In this case we should
+	 * return NULL as well.  Set i_blkno to 0 so that xfs_itobp() will
+	 * know that this is a new incore inode.
+	 */
+	error = xfs_itobp(mp, tp, ip, &dip, &bp, bno);
+
+	if (error != 0) {
+		kmem_zone_free(xfs_inode_zone, ip);
+		return error;
+	}
+
+	/*
+	 * Initialize inode's trace buffers.
+	 * Do this before xfs_iformat in case it adds entries.
+	 */
+#ifdef XFS_BMAP_TRACE
+	ip->i_xtrace = ktrace_alloc(XFS_BMAP_KTRACE_SIZE, KM_SLEEP);
+#endif
+#ifdef XFS_BMBT_TRACE
+	ip->i_btrace = ktrace_alloc(XFS_BMBT_KTRACE_SIZE, KM_SLEEP);
+#endif
+#ifdef XFS_RW_TRACE
+	ip->i_rwtrace = ktrace_alloc(XFS_RW_KTRACE_SIZE, KM_SLEEP);
+#endif
+#ifdef XFS_ILOCK_TRACE
+	ip->i_lock_trace = ktrace_alloc(XFS_ILOCK_KTRACE_SIZE, KM_SLEEP);
+#endif
+#ifdef XFS_DIR2_TRACE
+	ip->i_dir_trace = ktrace_alloc(XFS_DIR2_KTRACE_SIZE, KM_SLEEP);
+#endif
+
+	/*
+	 * If we got something that isn't an inode it means someone
+	 * (nfs or dmi) has a stale handle.
+	 */
+	if (INT_GET(dip->di_core.di_magic, ARCH_CONVERT) != XFS_DINODE_MAGIC) {
+		kmem_zone_free(xfs_inode_zone, ip);
+		xfs_trans_brelse(tp, bp);
+#ifdef DEBUG
+		xfs_fs_cmn_err(CE_ALERT, mp, "xfs_iread: "
+				"dip->di_core.di_magic (0x%x) != "
+				"XFS_DINODE_MAGIC (0x%x)",
+				INT_GET(dip->di_core.di_magic, ARCH_CONVERT),
+				XFS_DINODE_MAGIC);
+#endif /* DEBUG */
+		return XFS_ERROR(EINVAL);
+	}
+
+	/*
+	 * If the on-disk inode is already linked to a directory
+	 * entry, copy all of the inode into the in-core inode.
+	 * xfs_iformat() handles copying in the inode format
+	 * specific information.
+	 * Otherwise, just get the truly permanent information.
+	 */
+	if (!INT_ISZERO(dip->di_core.di_mode, ARCH_CONVERT)) {
+		xfs_xlate_dinode_core((xfs_caddr_t)&dip->di_core,
+		     &(ip->i_d), 1, ARCH_CONVERT);
+		error = xfs_iformat(ip, dip);
+		if (error)  {
+			kmem_zone_free(xfs_inode_zone, ip);
+			xfs_trans_brelse(tp, bp);
+#ifdef DEBUG
+			xfs_fs_cmn_err(CE_ALERT, mp, "xfs_iread: "
+					"xfs_iformat() returned error %d",
+					error);
+#endif /* DEBUG */
+			return error;
+		}
+	} else {
+		ip->i_d.di_magic = INT_GET(dip->di_core.di_magic, ARCH_CONVERT);
+		ip->i_d.di_version = INT_GET(dip->di_core.di_version, ARCH_CONVERT);
+		ip->i_d.di_gen = INT_GET(dip->di_core.di_gen, ARCH_CONVERT);
+		ip->i_d.di_flushiter = INT_GET(dip->di_core.di_flushiter, ARCH_CONVERT);
+		/*
+		 * Make sure to pull in the mode here as well in
+		 * case the inode is released without being used.
+		 * This ensures that xfs_inactive() will see that
+		 * the inode is already free and not try to mess
+		 * with the uninitialized part of it.
+		 */
+		ip->i_d.di_mode = 0;
+		/*
+		 * Initialize the per-fork minima and maxima for a new
+		 * inode here.  xfs_iformat will do it for old inodes.
+		 */
+		ip->i_df.if_ext_max =
+			XFS_IFORK_DSIZE(ip) / (uint)sizeof(xfs_bmbt_rec_t);
+	}
+
+	INIT_LIST_HEAD(&ip->i_reclaim);
+
+	/*
+	 * The inode format changed when we moved the link count and
+	 * made it 32 bits long.  If this is an old format inode,
+	 * convert it in memory to look like a new one.  If it gets
+	 * flushed to disk we will convert back before flushing or
+	 * logging it.  We zero out the new projid field and the old link
+	 * count field.  We'll handle clearing the pad field (the remains
+	 * of the old uuid field) when we actually convert the inode to
+	 * the new format. We don't change the version number so that we
+	 * can distinguish this from a real new format inode.
+	 */
+	if (ip->i_d.di_version == XFS_DINODE_VERSION_1) {
+		ip->i_d.di_nlink = ip->i_d.di_onlink;
+		ip->i_d.di_onlink = 0;
+		ip->i_d.di_projid = 0;
+	}
+
+	ip->i_delayed_blks = 0;
+
+	/*
+	 * Mark the buffer containing the inode as something to keep
+	 * around for a while.  This helps to keep recently accessed
+	 * meta-data in-core longer.
+	 */
+	 XFS_BUF_SET_REF(bp, XFS_INO_REF);
+
+	/*
+	 * Use xfs_trans_brelse() to release the buffer containing the
+	 * on-disk inode, because it was acquired with xfs_trans_read_buf()
+	 * in xfs_itobp() above.  If tp is NULL, this is just a normal
+	 * brelse().  If we're within a transaction, then xfs_trans_brelse()
+	 * will only release the buffer if it is not dirty within the
+	 * transaction.  It will be OK to release the buffer in this case,
+	 * because inodes on disk are never destroyed and we will be
+	 * locking the new in-core inode before putting it in the hash
+	 * table where other processes can find it.  Thus we don't have
+	 * to worry about the inode being changed just because we released
+	 * the buffer.
+	 */
+	xfs_trans_brelse(tp, bp);
+	*ipp = ip;
+	return 0;
+}
+
+/*
+ * Read in extents from a btree-format inode.
+ * Allocate and fill in if_extents.  Real work is done in xfs_bmap.c.
+ */
+int
+xfs_iread_extents(
+	xfs_trans_t	*tp,
+	xfs_inode_t	*ip,
+	int		whichfork)
+{
+	int		error;
+	xfs_ifork_t	*ifp;
+	size_t		size;
+
+	if (unlikely(XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE)) {
+		XFS_ERROR_REPORT("xfs_iread_extents", XFS_ERRLEVEL_LOW,
+				 ip->i_mount);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+	size = XFS_IFORK_NEXTENTS(ip, whichfork) * (uint)sizeof(xfs_bmbt_rec_t);
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	/*
+	 * We know that the size is valid (it's checked in iformat_btree)
+	 */
+	ifp->if_u1.if_extents = kmem_alloc(size, KM_SLEEP);
+	ASSERT(ifp->if_u1.if_extents != NULL);
+	ifp->if_lastex = NULLEXTNUM;
+	ifp->if_bytes = ifp->if_real_bytes = (int)size;
+	ifp->if_flags |= XFS_IFEXTENTS;
+	error = xfs_bmap_read_extents(tp, ip, whichfork);
+	if (error) {
+		kmem_free(ifp->if_u1.if_extents, size);
+		ifp->if_u1.if_extents = NULL;
+		ifp->if_bytes = ifp->if_real_bytes = 0;
+		ifp->if_flags &= ~XFS_IFEXTENTS;
+		return error;
+	}
+	xfs_validate_extents((xfs_bmbt_rec_t *)ifp->if_u1.if_extents,
+		XFS_IFORK_NEXTENTS(ip, whichfork), 0, XFS_EXTFMT_INODE(ip));
+	return 0;
+}
+
+/*
+ * Allocate an inode on disk and return a copy of its in-core version.
+ * The in-core inode is locked exclusively.  Set mode, nlink, and rdev
+ * appropriately within the inode.  The uid and gid for the inode are
+ * set according to the contents of the given cred structure.
+ *
+ * Use xfs_dialloc() to allocate the on-disk inode. If xfs_dialloc()
+ * has a free inode available, call xfs_iget()
+ * to obtain the in-core version of the allocated inode.  Finally,
+ * fill in the inode and log its initial contents.  In this case,
+ * ialloc_context would be set to NULL and call_again set to false.
+ *
+ * If xfs_dialloc() does not have an available inode,
+ * it will replenish its supply by doing an allocation. Since we can
+ * only do one allocation within a transaction without deadlocks, we
+ * must commit the current transaction before returning the inode itself.
+ * In this case, therefore, we will set call_again to true and return.
+ * The caller should then commit the current transaction, start a new
+ * transaction, and call xfs_ialloc() again to actually get the inode.
+ *
+ * To ensure that some other process does not grab the inode that
+ * was allocated during the first call to xfs_ialloc(), this routine
+ * also returns the [locked] bp pointing to the head of the freelist
+ * as ialloc_context.  The caller should hold this buffer across
+ * the commit and pass it back into this routine on the second call.
+ */
+int
+xfs_ialloc(
+	xfs_trans_t	*tp,
+	xfs_inode_t	*pip,
+	mode_t		mode,
+	nlink_t		nlink,
+	xfs_dev_t	rdev,
+	cred_t		*cr,
+	xfs_prid_t	prid,
+	int		okalloc,
+	xfs_buf_t	**ialloc_context,
+	boolean_t	*call_again,
+	xfs_inode_t	**ipp)
+{
+	xfs_ino_t	ino;
+	xfs_inode_t	*ip;
+	vnode_t		*vp;
+	uint		flags;
+	int		error;
+
+	/*
+	 * Call the space management code to pick
+	 * the on-disk inode to be allocated.
+	 */
+	error = xfs_dialloc(tp, pip->i_ino, mode, okalloc,
+			    ialloc_context, call_again, &ino);
+	if (error != 0) {
+		return error;
+	}
+	if (*call_again || ino == NULLFSINO) {
+		*ipp = NULL;
+		return 0;
+	}
+	ASSERT(*ialloc_context == NULL);
+
+	/*
+	 * Get the in-core inode with the lock held exclusively.
+	 * This is because we're setting fields here we need
+	 * to prevent others from looking at until we're done.
+	 */
+	error = xfs_trans_iget(tp->t_mountp, tp, ino,
+			IGET_CREATE, XFS_ILOCK_EXCL, &ip);
+	if (error != 0) {
+		return error;
+	}
+	ASSERT(ip != NULL);
+
+	vp = XFS_ITOV(ip);
+	vp->v_type = IFTOVT(mode);
+	ip->i_d.di_mode = (__uint16_t)mode;
+	ip->i_d.di_onlink = 0;
+	ip->i_d.di_nlink = nlink;
+	ASSERT(ip->i_d.di_nlink == nlink);
+	ip->i_d.di_uid = current_fsuid(cr);
+	ip->i_d.di_gid = current_fsgid(cr);
+	ip->i_d.di_projid = prid;
+	memset(&(ip->i_d.di_pad[0]), 0, sizeof(ip->i_d.di_pad));
+
+	/*
+	 * If the superblock version is up to where we support new format
+	 * inodes and this is currently an old format inode, then change
+	 * the inode version number now.  This way we only do the conversion
+	 * here rather than here and in the flush/logging code.
+	 */
+	if (XFS_SB_VERSION_HASNLINK(&tp->t_mountp->m_sb) &&
+	    ip->i_d.di_version == XFS_DINODE_VERSION_1) {
+		ip->i_d.di_version = XFS_DINODE_VERSION_2;
+		/*
+		 * We've already zeroed the old link count, the projid field,
+		 * and the pad field.
+		 */
+	}
+
+	/*
+	 * Project ids won't be stored on disk if we are using a version 1 inode.
+	 */
+	if ( (prid != 0) && (ip->i_d.di_version == XFS_DINODE_VERSION_1))
+		xfs_bump_ino_vers2(tp, ip);
+
+	if (XFS_INHERIT_GID(pip, vp->v_vfsp)) {
+		ip->i_d.di_gid = pip->i_d.di_gid;
+		if ((pip->i_d.di_mode & S_ISGID) && (mode & S_IFMT) == S_IFDIR) {
+			ip->i_d.di_mode |= S_ISGID;
+		}
+	}
+
+	/*
+	 * If the group ID of the new file does not match the effective group
+	 * ID or one of the supplementary group IDs, the S_ISGID bit is cleared
+	 * (and only if the irix_sgid_inherit compatibility variable is set).
+	 */
+	if ((irix_sgid_inherit) &&
+	    (ip->i_d.di_mode & S_ISGID) &&
+	    (!in_group_p((gid_t)ip->i_d.di_gid))) {
+		ip->i_d.di_mode &= ~S_ISGID;
+	}
+
+	ip->i_d.di_size = 0;
+	ip->i_d.di_nextents = 0;
+	ASSERT(ip->i_d.di_nblocks == 0);
+	xfs_ichgtime(ip, XFS_ICHGTIME_CHG|XFS_ICHGTIME_ACC|XFS_ICHGTIME_MOD);
+	/*
+	 * di_gen will have been taken care of in xfs_iread.
+	 */
+	ip->i_d.di_extsize = 0;
+	ip->i_d.di_dmevmask = 0;
+	ip->i_d.di_dmstate = 0;
+	ip->i_d.di_flags = 0;
+	flags = XFS_ILOG_CORE;
+	switch (mode & S_IFMT) {
+	case S_IFIFO:
+	case S_IFCHR:
+	case S_IFBLK:
+	case S_IFSOCK:
+		ip->i_d.di_format = XFS_DINODE_FMT_DEV;
+		ip->i_df.if_u2.if_rdev = rdev;
+		ip->i_df.if_flags = 0;
+		flags |= XFS_ILOG_DEV;
+		break;
+	case S_IFREG:
+	case S_IFDIR:
+		if (unlikely(pip->i_d.di_flags & XFS_DIFLAG_ANY)) {
+			if (pip->i_d.di_flags & XFS_DIFLAG_RTINHERIT) {
+				if ((mode & S_IFMT) == S_IFDIR) {
+					ip->i_d.di_flags |= XFS_DIFLAG_RTINHERIT;
+				} else {
+					ip->i_d.di_flags |= XFS_DIFLAG_REALTIME;
+					ip->i_iocore.io_flags |= XFS_IOCORE_RT;
+				}
+			}
+			if ((pip->i_d.di_flags & XFS_DIFLAG_NOATIME) &&
+			    xfs_inherit_noatime)
+				ip->i_d.di_flags |= XFS_DIFLAG_NOATIME;
+			if ((pip->i_d.di_flags & XFS_DIFLAG_NODUMP) &&
+			    xfs_inherit_nodump)
+				ip->i_d.di_flags |= XFS_DIFLAG_NODUMP;
+			if ((pip->i_d.di_flags & XFS_DIFLAG_SYNC) &&
+			    xfs_inherit_sync)
+				ip->i_d.di_flags |= XFS_DIFLAG_SYNC;
+			if ((pip->i_d.di_flags & XFS_DIFLAG_NOSYMLINKS) &&
+			    xfs_inherit_nosymlinks)
+				ip->i_d.di_flags |= XFS_DIFLAG_NOSYMLINKS;
+		}
+		/* FALLTHROUGH */
+	case S_IFLNK:
+		ip->i_d.di_format = XFS_DINODE_FMT_EXTENTS;
+		ip->i_df.if_flags = XFS_IFEXTENTS;
+		ip->i_df.if_bytes = ip->i_df.if_real_bytes = 0;
+		ip->i_df.if_u1.if_extents = NULL;
+		break;
+	default:
+		ASSERT(0);
+	}
+	/*
+	 * Attribute fork settings for new inode.
+	 */
+	ip->i_d.di_aformat = XFS_DINODE_FMT_EXTENTS;
+	ip->i_d.di_anextents = 0;
+
+	/*
+	 * Log the new values stuffed into the inode.
+	 */
+	xfs_trans_log_inode(tp, ip, flags);
+
+	/* now that we have a v_type we can set Linux inode ops (& unlock) */
+	VFS_INIT_VNODE(XFS_MTOVFS(tp->t_mountp), vp, XFS_ITOBHV(ip), 1);
+
+	*ipp = ip;
+	return 0;
+}
+
+/*
+ * Check to make sure that there are no blocks allocated to the
+ * file beyond the size of the file.  We don't check this for
+ * files with fixed size extents or real time extents, but we
+ * at least do it for regular files.
+ */
+#ifdef DEBUG
+void
+xfs_isize_check(
+	xfs_mount_t	*mp,
+	xfs_inode_t	*ip,
+	xfs_fsize_t	isize)
+{
+	xfs_fileoff_t	map_first;
+	int		nimaps;
+	xfs_bmbt_irec_t	imaps[2];
+
+	if ((ip->i_d.di_mode & S_IFMT) != S_IFREG)
+		return;
+
+	if ( ip->i_d.di_flags & XFS_DIFLAG_REALTIME )
+		return;
+
+	nimaps = 2;
+	map_first = XFS_B_TO_FSB(mp, (xfs_ufsize_t)isize);
+	/*
+	 * The filesystem could be shutting down, so bmapi may return
+	 * an error.
+	 */
+	if (xfs_bmapi(NULL, ip, map_first,
+			 (XFS_B_TO_FSB(mp,
+				       (xfs_ufsize_t)XFS_MAXIOFFSET(mp)) -
+			  map_first),
+			 XFS_BMAPI_ENTIRE, NULL, 0, imaps, &nimaps,
+			 NULL))
+	    return;
+	ASSERT(nimaps == 1);
+	ASSERT(imaps[0].br_startblock == HOLESTARTBLOCK);
+}
+#endif	/* DEBUG */
+
+/*
+ * Calculate the last possible buffered byte in a file.  This must
+ * include data that was buffered beyond the EOF by the write code.
+ * This also needs to deal with overflowing the xfs_fsize_t type
+ * which can happen for sizes near the limit.
+ *
+ * We also need to take into account any blocks beyond the EOF.  It
+ * may be the case that they were buffered by a write which failed.
+ * In that case the pages will still be in memory, but the inode size
+ * will never have been updated.
+ */
+xfs_fsize_t
+xfs_file_last_byte(
+	xfs_inode_t	*ip)
+{
+	xfs_mount_t	*mp;
+	xfs_fsize_t	last_byte;
+	xfs_fileoff_t	last_block;
+	xfs_fileoff_t	size_last_block;
+	int		error;
+
+	ASSERT(ismrlocked(&(ip->i_iolock), MR_UPDATE | MR_ACCESS));
+
+	mp = ip->i_mount;
+	/*
+	 * Only check for blocks beyond the EOF if the extents have
+	 * been read in.  This eliminates the need for the inode lock,
+	 * and it also saves us from looking when it really isn't
+	 * necessary.
+	 */
+	if (ip->i_df.if_flags & XFS_IFEXTENTS) {
+		error = xfs_bmap_last_offset(NULL, ip, &last_block,
+			XFS_DATA_FORK);
+		if (error) {
+			last_block = 0;
+		}
+	} else {
+		last_block = 0;
+	}
+	size_last_block = XFS_B_TO_FSB(mp, (xfs_ufsize_t)ip->i_d.di_size);
+	last_block = XFS_FILEOFF_MAX(last_block, size_last_block);
+
+	last_byte = XFS_FSB_TO_B(mp, last_block);
+	if (last_byte < 0) {
+		return XFS_MAXIOFFSET(mp);
+	}
+	last_byte += (1 << mp->m_writeio_log);
+	if (last_byte < 0) {
+		return XFS_MAXIOFFSET(mp);
+	}
+	return last_byte;
+}
+
+#if defined(XFS_RW_TRACE)
+STATIC void
+xfs_itrunc_trace(
+	int		tag,
+	xfs_inode_t	*ip,
+	int		flag,
+	xfs_fsize_t	new_size,
+	xfs_off_t	toss_start,
+	xfs_off_t	toss_finish)
+{
+	if (ip->i_rwtrace == NULL) {
+		return;
+	}
+
+	ktrace_enter(ip->i_rwtrace,
+		     (void*)((long)tag),
+		     (void*)ip,
+		     (void*)(unsigned long)((ip->i_d.di_size >> 32) & 0xffffffff),
+		     (void*)(unsigned long)(ip->i_d.di_size & 0xffffffff),
+		     (void*)((long)flag),
+		     (void*)(unsigned long)((new_size >> 32) & 0xffffffff),
+		     (void*)(unsigned long)(new_size & 0xffffffff),
+		     (void*)(unsigned long)((toss_start >> 32) & 0xffffffff),
+		     (void*)(unsigned long)(toss_start & 0xffffffff),
+		     (void*)(unsigned long)((toss_finish >> 32) & 0xffffffff),
+		     (void*)(unsigned long)(toss_finish & 0xffffffff),
+		     (void*)(unsigned long)current_cpu(),
+		     (void*)0,
+		     (void*)0,
+		     (void*)0,
+		     (void*)0);
+}
+#else
+#define	xfs_itrunc_trace(tag, ip, flag, new_size, toss_start, toss_finish)
+#endif
+
+/*
+ * Start the truncation of the file to new_size.  The new size
+ * must be smaller than the current size.  This routine will
+ * clear the buffer and page caches of file data in the removed
+ * range, and xfs_itruncate_finish() will remove the underlying
+ * disk blocks.
+ *
+ * The inode must have its I/O lock locked EXCLUSIVELY, and it
+ * must NOT have the inode lock held at all.  This is because we're
+ * calling into the buffer/page cache code and we can't hold the
+ * inode lock when we do so.
+ *
+ * The flags parameter can have either the value XFS_ITRUNC_DEFINITE
+ * or XFS_ITRUNC_MAYBE.  The XFS_ITRUNC_MAYBE value should be used
+ * in the case that the caller is locking things out of order and
+ * may not be able to call xfs_itruncate_finish() with the inode lock
+ * held without dropping the I/O lock.  If the caller must drop the
+ * I/O lock before calling xfs_itruncate_finish(), then xfs_itruncate_start()
+ * must be called again with all the same restrictions as the initial
+ * call.
+ */
+void
+xfs_itruncate_start(
+	xfs_inode_t	*ip,
+	uint		flags,
+	xfs_fsize_t	new_size)
+{
+	xfs_fsize_t	last_byte;
+	xfs_off_t	toss_start;
+	xfs_mount_t	*mp;
+	vnode_t		*vp;
+
+	ASSERT(ismrlocked(&ip->i_iolock, MR_UPDATE) != 0);
+	ASSERT((new_size == 0) || (new_size <= ip->i_d.di_size));
+	ASSERT((flags == XFS_ITRUNC_DEFINITE) ||
+	       (flags == XFS_ITRUNC_MAYBE));
+
+	mp = ip->i_mount;
+	vp = XFS_ITOV(ip);
+	/*
+	 * Call VOP_TOSS_PAGES() or VOP_FLUSHINVAL_PAGES() to get rid of pages and buffers
+	 * overlapping the region being removed.  We have to use
+	 * the less efficient VOP_FLUSHINVAL_PAGES() in the case that the
+	 * caller may not be able to finish the truncate without
+	 * dropping the inode's I/O lock.  Make sure
+	 * to catch any pages brought in by buffers overlapping
+	 * the EOF by searching out beyond the isize by our
+	 * block size. We round new_size up to a block boundary
+	 * so that we don't toss things on the same block as
+	 * new_size but before it.
+	 *
+	 * Before calling VOP_TOSS_PAGES() or VOP_FLUSHINVAL_PAGES(), make sure to
+	 * call remapf() over the same region if the file is mapped.
+	 * This frees up mapped file references to the pages in the
+	 * given range and for the VOP_FLUSHINVAL_PAGES() case it ensures
+	 * that we get the latest mapped changes flushed out.
+	 */
+	toss_start = XFS_B_TO_FSB(mp, (xfs_ufsize_t)new_size);
+	toss_start = XFS_FSB_TO_B(mp, toss_start);
+	if (toss_start < 0) {
+		/*
+		 * The place to start tossing is beyond our maximum
+		 * file size, so there is no way that the data extended
+		 * out there.
+		 */
+		return;
+	}
+	last_byte = xfs_file_last_byte(ip);
+	xfs_itrunc_trace(XFS_ITRUNC_START, ip, flags, new_size, toss_start,
+			 last_byte);
+	if (last_byte > toss_start) {
+		if (flags & XFS_ITRUNC_DEFINITE) {
+			VOP_TOSS_PAGES(vp, toss_start, -1, FI_REMAPF_LOCKED);
+		} else {
+			VOP_FLUSHINVAL_PAGES(vp, toss_start, -1, FI_REMAPF_LOCKED);
+		}
+	}
+
+#ifdef DEBUG
+	if (new_size == 0) {
+		ASSERT(VN_CACHED(vp) == 0);
+	}
+#endif
+}
+
+/*
+ * Shrink the file to the given new_size.  The new
+ * size must be smaller than the current size.
+ * This will free up the underlying blocks
+ * in the removed range after a call to xfs_itruncate_start()
+ * or xfs_atruncate_start().
+ *
+ * The transaction passed to this routine must have made
+ * a permanent log reservation of at least XFS_ITRUNCATE_LOG_RES.
+ * This routine may commit the given transaction and
+ * start new ones, so make sure everything involved in
+ * the transaction is tidy before calling here.
+ * Some transaction will be returned to the caller to be
+ * committed.  The incoming transaction must already include
+ * the inode, and both inode locks must be held exclusively.
+ * The inode must also be "held" within the transaction.  On
+ * return the inode will be "held" within the returned transaction.
+ * This routine does NOT require any disk space to be reserved
+ * for it within the transaction.
+ *
+ * The fork parameter must be either xfs_attr_fork or xfs_data_fork,
+ * and it indicates the fork which is to be truncated.  For the
+ * attribute fork we only support truncation to size 0.
+ *
+ * We use the sync parameter to indicate whether or not the first
+ * transaction we perform might have to be synchronous.  For the attr fork,
+ * it needs to be so if the unlink of the inode is not yet known to be
+ * permanent in the log.  This keeps us from freeing and reusing the
+ * blocks of the attribute fork before the unlink of the inode becomes
+ * permanent.
+ *
+ * For the data fork, we normally have to run synchronously if we're
+ * being called out of the inactive path or we're being called
+ * out of the create path where we're truncating an existing file.
+ * Either way, the truncate needs to be sync so blocks don't reappear
+ * in the file with altered data in case of a crash.  wsync filesystems
+ * can run the first case async because anything that shrinks the inode
+ * has to run sync so by the time we're called here from inactive, the
+ * inode size is permanently set to 0.
+ *
+ * Calls from the truncate path always need to be sync unless we're
+ * in a wsync filesystem and the file has already been unlinked.
+ *
+ * The caller is responsible for correctly setting the sync parameter.
+ * It gets too hard for us to guess here which path we're being called
+ * out of just based on inode state.
+ */
+int
+xfs_itruncate_finish(
+	xfs_trans_t	**tp,
+	xfs_inode_t	*ip,
+	xfs_fsize_t	new_size,
+	int		fork,
+	int		sync)
+{
+	xfs_fsblock_t	first_block;
+	xfs_fileoff_t	first_unmap_block;
+	xfs_fileoff_t	last_block;
+	xfs_filblks_t	unmap_len=0;
+	xfs_mount_t	*mp;
+	xfs_trans_t	*ntp;
+	int		done;
+	int		committed;
+	xfs_bmap_free_t	free_list;
+	int		error;
+
+	ASSERT(ismrlocked(&ip->i_iolock, MR_UPDATE) != 0);
+	ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE) != 0);
+	ASSERT((new_size == 0) || (new_size <= ip->i_d.di_size));
+	ASSERT(*tp != NULL);
+	ASSERT((*tp)->t_flags & XFS_TRANS_PERM_LOG_RES);
+	ASSERT(ip->i_transp == *tp);
+	ASSERT(ip->i_itemp != NULL);
+	ASSERT(ip->i_itemp->ili_flags & XFS_ILI_HOLD);
+
+
+	ntp = *tp;
+	mp = (ntp)->t_mountp;
+	ASSERT(! XFS_NOT_DQATTACHED(mp, ip));
+
+	/*
+	 * We only support truncating the entire attribute fork.
+	 */
+	if (fork == XFS_ATTR_FORK) {
+		new_size = 0LL;
+	}
+	first_unmap_block = XFS_B_TO_FSB(mp, (xfs_ufsize_t)new_size);
+	xfs_itrunc_trace(XFS_ITRUNC_FINISH1, ip, 0, new_size, 0, 0);
+	/*
+	 * The first thing we do is set the size to new_size permanently
+	 * on disk.  This way we don't have to worry about anyone ever
+	 * being able to look at the data being freed even in the face
+	 * of a crash.  What we're getting around here is the case where
+	 * we free a block, it is allocated to another file, it is written
+	 * to, and then we crash.  If the new data gets written to the
+	 * file but the log buffers containing the free and reallocation
+	 * don't, then we'd end up with garbage in the blocks being freed.
+	 * As long as we make the new_size permanent before actually
+	 * freeing any blocks it doesn't matter if they get writtten to.
+	 *
+	 * The callers must signal into us whether or not the size
+	 * setting here must be synchronous.  There are a few cases
+	 * where it doesn't have to be synchronous.  Those cases
+	 * occur if the file is unlinked and we know the unlink is
+	 * permanent or if the blocks being truncated are guaranteed
+	 * to be beyond the inode eof (regardless of the link count)
+	 * and the eof value is permanent.  Both of these cases occur
+	 * only on wsync-mounted filesystems.  In those cases, we're
+	 * guaranteed that no user will ever see the data in the blocks
+	 * that are being truncated so the truncate can run async.
+	 * In the free beyond eof case, the file may wind up with
+	 * more blocks allocated to it than it needs if we crash
+	 * and that won't get fixed until the next time the file
+	 * is re-opened and closed but that's ok as that shouldn't
+	 * be too many blocks.
+	 *
+	 * However, we can't just make all wsync xactions run async
+	 * because there's one call out of the create path that needs
+	 * to run sync where it's truncating an existing file to size
+	 * 0 whose size is > 0.
+	 *
+	 * It's probably possible to come up with a test in this
+	 * routine that would correctly distinguish all the above
+	 * cases from the values of the function parameters and the
+	 * inode state but for sanity's sake, I've decided to let the
+	 * layers above just tell us.  It's simpler to correctly figure
+	 * out in the layer above exactly under what conditions we
+	 * can run async and I think it's easier for others read and
+	 * follow the logic in case something has to be changed.
+	 * cscope is your friend -- rcc.
+	 *
+	 * The attribute fork is much simpler.
+	 *
+	 * For the attribute fork we allow the caller to tell us whether
+	 * the unlink of the inode that led to this call is yet permanent
+	 * in the on disk log.  If it is not and we will be freeing extents
+	 * in this inode then we make the first transaction synchronous
+	 * to make sure that the unlink is permanent by the time we free
+	 * the blocks.
+	 */
+	if (fork == XFS_DATA_FORK) {
+		if (ip->i_d.di_nextents > 0) {
+			ip->i_d.di_size = new_size;
+			xfs_trans_log_inode(ntp, ip, XFS_ILOG_CORE);
+		}
+	} else if (sync) {
+		ASSERT(!(mp->m_flags & XFS_MOUNT_WSYNC));
+		if (ip->i_d.di_anextents > 0)
+			xfs_trans_set_sync(ntp);
+	}
+	ASSERT(fork == XFS_DATA_FORK ||
+		(fork == XFS_ATTR_FORK &&
+			((sync && !(mp->m_flags & XFS_MOUNT_WSYNC)) ||
+			 (sync == 0 && (mp->m_flags & XFS_MOUNT_WSYNC)))));
+
+	/*
+	 * Since it is possible for space to become allocated beyond
+	 * the end of the file (in a crash where the space is allocated
+	 * but the inode size is not yet updated), simply remove any
+	 * blocks which show up between the new EOF and the maximum
+	 * possible file size.  If the first block to be removed is
+	 * beyond the maximum file size (ie it is the same as last_block),
+	 * then there is nothing to do.
+	 */
+	last_block = XFS_B_TO_FSB(mp, (xfs_ufsize_t)XFS_MAXIOFFSET(mp));
+	ASSERT(first_unmap_block <= last_block);
+	done = 0;
+	if (last_block == first_unmap_block) {
+		done = 1;
+	} else {
+		unmap_len = last_block - first_unmap_block + 1;
+	}
+	while (!done) {
+		/*
+		 * Free up up to XFS_ITRUNC_MAX_EXTENTS.  xfs_bunmapi()
+		 * will tell us whether it freed the entire range or
+		 * not.  If this is a synchronous mount (wsync),
+		 * then we can tell bunmapi to keep all the
+		 * transactions asynchronous since the unlink
+		 * transaction that made this inode inactive has
+		 * already hit the disk.  There's no danger of
+		 * the freed blocks being reused, there being a
+		 * crash, and the reused blocks suddenly reappearing
+		 * in this file with garbage in them once recovery
+		 * runs.
+		 */
+		XFS_BMAP_INIT(&free_list, &first_block);
+		error = xfs_bunmapi(ntp, ip, first_unmap_block,
+				    unmap_len,
+				    XFS_BMAPI_AFLAG(fork) |
+				      (sync ? 0 : XFS_BMAPI_ASYNC),
+				    XFS_ITRUNC_MAX_EXTENTS,
+				    &first_block, &free_list, &done);
+		if (error) {
+			/*
+			 * If the bunmapi call encounters an error,
+			 * return to the caller where the transaction
+			 * can be properly aborted.  We just need to
+			 * make sure we're not holding any resources
+			 * that we were not when we came in.
+			 */
+			xfs_bmap_cancel(&free_list);
+			return error;
+		}
+
+		/*
+		 * Duplicate the transaction that has the permanent
+		 * reservation and commit the old transaction.
+		 */
+		error = xfs_bmap_finish(tp, &free_list, first_block,
+					&committed);
+		ntp = *tp;
+		if (error) {
+			/*
+			 * If the bmap finish call encounters an error,
+			 * return to the caller where the transaction
+			 * can be properly aborted.  We just need to
+			 * make sure we're not holding any resources
+			 * that we were not when we came in.
+			 *
+			 * Aborting from this point might lose some
+			 * blocks in the file system, but oh well.
+			 */
+			xfs_bmap_cancel(&free_list);
+			if (committed) {
+				/*
+				 * If the passed in transaction committed
+				 * in xfs_bmap_finish(), then we want to
+				 * add the inode to this one before returning.
+				 * This keeps things simple for the higher
+				 * level code, because it always knows that
+				 * the inode is locked and held in the
+				 * transaction that returns to it whether
+				 * errors occur or not.  We don't mark the
+				 * inode dirty so that this transaction can
+				 * be easily aborted if possible.
+				 */
+				xfs_trans_ijoin(ntp, ip,
+					XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
+				xfs_trans_ihold(ntp, ip);
+			}
+			return error;
+		}
+
+		if (committed) {
+			/*
+			 * The first xact was committed,
+			 * so add the inode to the new one.
+			 * Mark it dirty so it will be logged
+			 * and moved forward in the log as
+			 * part of every commit.
+			 */
+			xfs_trans_ijoin(ntp, ip,
+					XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
+			xfs_trans_ihold(ntp, ip);
+			xfs_trans_log_inode(ntp, ip, XFS_ILOG_CORE);
+		}
+		ntp = xfs_trans_dup(ntp);
+		(void) xfs_trans_commit(*tp, 0, NULL);
+		*tp = ntp;
+		error = xfs_trans_reserve(ntp, 0, XFS_ITRUNCATE_LOG_RES(mp), 0,
+					  XFS_TRANS_PERM_LOG_RES,
+					  XFS_ITRUNCATE_LOG_COUNT);
+		/*
+		 * Add the inode being truncated to the next chained
+		 * transaction.
+		 */
+		xfs_trans_ijoin(ntp, ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
+		xfs_trans_ihold(ntp, ip);
+		if (error)
+			return (error);
+	}
+	/*
+	 * Only update the size in the case of the data fork, but
+	 * always re-log the inode so that our permanent transaction
+	 * can keep on rolling it forward in the log.
+	 */
+	if (fork == XFS_DATA_FORK) {
+		xfs_isize_check(mp, ip, new_size);
+		ip->i_d.di_size = new_size;
+	}
+	xfs_trans_log_inode(ntp, ip, XFS_ILOG_CORE);
+	ASSERT((new_size != 0) ||
+	       (fork == XFS_ATTR_FORK) ||
+	       (ip->i_delayed_blks == 0));
+	ASSERT((new_size != 0) ||
+	       (fork == XFS_ATTR_FORK) ||
+	       (ip->i_d.di_nextents == 0));
+	xfs_itrunc_trace(XFS_ITRUNC_FINISH2, ip, 0, new_size, 0, 0);
+	return 0;
+}
+
+
+/*
+ * xfs_igrow_start
+ *
+ * Do the first part of growing a file: zero any data in the last
+ * block that is beyond the old EOF.  We need to do this before
+ * the inode is joined to the transaction to modify the i_size.
+ * That way we can drop the inode lock and call into the buffer
+ * cache to get the buffer mapping the EOF.
+ */
+int
+xfs_igrow_start(
+	xfs_inode_t	*ip,
+	xfs_fsize_t	new_size,
+	cred_t		*credp)
+{
+	xfs_fsize_t	isize;
+	int		error;
+
+	ASSERT(ismrlocked(&(ip->i_lock), MR_UPDATE) != 0);
+	ASSERT(ismrlocked(&(ip->i_iolock), MR_UPDATE) != 0);
+	ASSERT(new_size > ip->i_d.di_size);
+
+	error = 0;
+	isize = ip->i_d.di_size;
+	/*
+	 * Zero any pages that may have been created by
+	 * xfs_write_file() beyond the end of the file
+	 * and any blocks between the old and new file sizes.
+	 */
+	error = xfs_zero_eof(XFS_ITOV(ip), &ip->i_iocore, new_size, isize,
+				new_size);
+	return error;
+}
+
+/*
+ * xfs_igrow_finish
+ *
+ * This routine is called to extend the size of a file.
+ * The inode must have both the iolock and the ilock locked
+ * for update and it must be a part of the current transaction.
+ * The xfs_igrow_start() function must have been called previously.
+ * If the change_flag is not zero, the inode change timestamp will
+ * be updated.
+ */
+void
+xfs_igrow_finish(
+	xfs_trans_t	*tp,
+	xfs_inode_t	*ip,
+	xfs_fsize_t	new_size,
+	int		change_flag)
+{
+	ASSERT(ismrlocked(&(ip->i_lock), MR_UPDATE) != 0);
+	ASSERT(ismrlocked(&(ip->i_iolock), MR_UPDATE) != 0);
+	ASSERT(ip->i_transp == tp);
+	ASSERT(new_size > ip->i_d.di_size);
+
+	/*
+	 * Update the file size.  Update the inode change timestamp
+	 * if change_flag set.
+	 */
+	ip->i_d.di_size = new_size;
+	if (change_flag)
+		xfs_ichgtime(ip, XFS_ICHGTIME_CHG);
+	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+
+}
+
+
+/*
+ * This is called when the inode's link count goes to 0.
+ * We place the on-disk inode on a list in the AGI.  It
+ * will be pulled from this list when the inode is freed.
+ */
+int
+xfs_iunlink(
+	xfs_trans_t	*tp,
+	xfs_inode_t	*ip)
+{
+	xfs_mount_t	*mp;
+	xfs_agi_t	*agi;
+	xfs_dinode_t	*dip;
+	xfs_buf_t	*agibp;
+	xfs_buf_t	*ibp;
+	xfs_agnumber_t	agno;
+	xfs_daddr_t	agdaddr;
+	xfs_agino_t	agino;
+	short		bucket_index;
+	int		offset;
+	int		error;
+	int		agi_ok;
+
+	ASSERT(ip->i_d.di_nlink == 0);
+	ASSERT(ip->i_d.di_mode != 0);
+	ASSERT(ip->i_transp == tp);
+
+	mp = tp->t_mountp;
+
+	agno = XFS_INO_TO_AGNO(mp, ip->i_ino);
+	agdaddr = XFS_AG_DADDR(mp, agno, XFS_AGI_DADDR(mp));
+
+	/*
+	 * Get the agi buffer first.  It ensures lock ordering
+	 * on the list.
+	 */
+	error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp, agdaddr,
+				   XFS_FSS_TO_BB(mp, 1), 0, &agibp);
+	if (error) {
+		return error;
+	}
+	/*
+	 * Validate the magic number of the agi block.
+	 */
+	agi = XFS_BUF_TO_AGI(agibp);
+	agi_ok =
+		INT_GET(agi->agi_magicnum, ARCH_CONVERT) == XFS_AGI_MAGIC &&
+		XFS_AGI_GOOD_VERSION(INT_GET(agi->agi_versionnum, ARCH_CONVERT));
+	if (unlikely(XFS_TEST_ERROR(!agi_ok, mp, XFS_ERRTAG_IUNLINK,
+			XFS_RANDOM_IUNLINK))) {
+		XFS_CORRUPTION_ERROR("xfs_iunlink", XFS_ERRLEVEL_LOW, mp, agi);
+		xfs_trans_brelse(tp, agibp);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+	/*
+	 * Get the index into the agi hash table for the
+	 * list this inode will go on.
+	 */
+	agino = XFS_INO_TO_AGINO(mp, ip->i_ino);
+	ASSERT(agino != 0);
+	bucket_index = agino % XFS_AGI_UNLINKED_BUCKETS;
+	ASSERT(!INT_ISZERO(agi->agi_unlinked[bucket_index], ARCH_CONVERT));
+	ASSERT(INT_GET(agi->agi_unlinked[bucket_index], ARCH_CONVERT) != agino);
+
+	if (INT_GET(agi->agi_unlinked[bucket_index], ARCH_CONVERT) != NULLAGINO) {
+		/*
+		 * There is already another inode in the bucket we need
+		 * to add ourselves to.  Add us at the front of the list.
+		 * Here we put the head pointer into our next pointer,
+		 * and then we fall through to point the head at us.
+		 */
+		error = xfs_itobp(mp, tp, ip, &dip, &ibp, 0);
+		if (error) {
+			return error;
+		}
+		ASSERT(INT_GET(dip->di_next_unlinked, ARCH_CONVERT) == NULLAGINO);
+		ASSERT(!INT_ISZERO(dip->di_next_unlinked, ARCH_CONVERT));
+		/* both on-disk, don't endian flip twice */
+		dip->di_next_unlinked = agi->agi_unlinked[bucket_index];
+		offset = ip->i_boffset +
+			offsetof(xfs_dinode_t, di_next_unlinked);
+		xfs_trans_inode_buf(tp, ibp);
+		xfs_trans_log_buf(tp, ibp, offset,
+				  (offset + sizeof(xfs_agino_t) - 1));
+		xfs_inobp_check(mp, ibp);
+	}
+
+	/*
+	 * Point the bucket head pointer at the inode being inserted.
+	 */
+	ASSERT(agino != 0);
+	INT_SET(agi->agi_unlinked[bucket_index], ARCH_CONVERT, agino);
+	offset = offsetof(xfs_agi_t, agi_unlinked) +
+		(sizeof(xfs_agino_t) * bucket_index);
+	xfs_trans_log_buf(tp, agibp, offset,
+			  (offset + sizeof(xfs_agino_t) - 1));
+	return 0;
+}
+
+/*
+ * Pull the on-disk inode from the AGI unlinked list.
+ */
+STATIC int
+xfs_iunlink_remove(
+	xfs_trans_t	*tp,
+	xfs_inode_t	*ip)
+{
+	xfs_ino_t	next_ino;
+	xfs_mount_t	*mp;
+	xfs_agi_t	*agi;
+	xfs_dinode_t	*dip;
+	xfs_buf_t	*agibp;
+	xfs_buf_t	*ibp;
+	xfs_agnumber_t	agno;
+	xfs_daddr_t	agdaddr;
+	xfs_agino_t	agino;
+	xfs_agino_t	next_agino;
+	xfs_buf_t	*last_ibp;
+	xfs_dinode_t	*last_dip;
+	short		bucket_index;
+	int		offset, last_offset;
+	int		error;
+	int		agi_ok;
+
+	/*
+	 * First pull the on-disk inode from the AGI unlinked list.
+	 */
+	mp = tp->t_mountp;
+
+	agno = XFS_INO_TO_AGNO(mp, ip->i_ino);
+	agdaddr = XFS_AG_DADDR(mp, agno, XFS_AGI_DADDR(mp));
+
+	/*
+	 * Get the agi buffer first.  It ensures lock ordering
+	 * on the list.
+	 */
+	error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp, agdaddr,
+				   XFS_FSS_TO_BB(mp, 1), 0, &agibp);
+	if (error) {
+		cmn_err(CE_WARN,
+			"xfs_iunlink_remove: xfs_trans_read_buf()  returned an error %d on %s.  Returning error.",
+			error, mp->m_fsname);
+		return error;
+	}
+	/*
+	 * Validate the magic number of the agi block.
+	 */
+	agi = XFS_BUF_TO_AGI(agibp);
+	agi_ok =
+		INT_GET(agi->agi_magicnum, ARCH_CONVERT) == XFS_AGI_MAGIC &&
+		XFS_AGI_GOOD_VERSION(INT_GET(agi->agi_versionnum, ARCH_CONVERT));
+	if (unlikely(XFS_TEST_ERROR(!agi_ok, mp, XFS_ERRTAG_IUNLINK_REMOVE,
+			XFS_RANDOM_IUNLINK_REMOVE))) {
+		XFS_CORRUPTION_ERROR("xfs_iunlink_remove", XFS_ERRLEVEL_LOW,
+				     mp, agi);
+		xfs_trans_brelse(tp, agibp);
+		cmn_err(CE_WARN,
+			"xfs_iunlink_remove: XFS_TEST_ERROR()  returned an error on %s.  Returning EFSCORRUPTED.",
+			 mp->m_fsname);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+	/*
+	 * Get the index into the agi hash table for the
+	 * list this inode will go on.
+	 */
+	agino = XFS_INO_TO_AGINO(mp, ip->i_ino);
+	ASSERT(agino != 0);
+	bucket_index = agino % XFS_AGI_UNLINKED_BUCKETS;
+	ASSERT(INT_GET(agi->agi_unlinked[bucket_index], ARCH_CONVERT) != NULLAGINO);
+	ASSERT(!INT_ISZERO(agi->agi_unlinked[bucket_index], ARCH_CONVERT));
+
+	if (INT_GET(agi->agi_unlinked[bucket_index], ARCH_CONVERT) == agino) {
+		/*
+		 * We're at the head of the list.  Get the inode's
+		 * on-disk buffer to see if there is anyone after us
+		 * on the list.  Only modify our next pointer if it
+		 * is not already NULLAGINO.  This saves us the overhead
+		 * of dealing with the buffer when there is no need to
+		 * change it.
+		 */
+		error = xfs_itobp(mp, tp, ip, &dip, &ibp, 0);
+		if (error) {
+			cmn_err(CE_WARN,
+				"xfs_iunlink_remove: xfs_itobp()  returned an error %d on %s.  Returning error.",
+				error, mp->m_fsname);
+			return error;
+		}
+		next_agino = INT_GET(dip->di_next_unlinked, ARCH_CONVERT);
+		ASSERT(next_agino != 0);
+		if (next_agino != NULLAGINO) {
+			INT_SET(dip->di_next_unlinked, ARCH_CONVERT, NULLAGINO);
+			offset = ip->i_boffset +
+				offsetof(xfs_dinode_t, di_next_unlinked);
+			xfs_trans_inode_buf(tp, ibp);
+			xfs_trans_log_buf(tp, ibp, offset,
+					  (offset + sizeof(xfs_agino_t) - 1));
+			xfs_inobp_check(mp, ibp);
+		} else {
+			xfs_trans_brelse(tp, ibp);
+		}
+		/*
+		 * Point the bucket head pointer at the next inode.
+		 */
+		ASSERT(next_agino != 0);
+		ASSERT(next_agino != agino);
+		INT_SET(agi->agi_unlinked[bucket_index], ARCH_CONVERT, next_agino);
+		offset = offsetof(xfs_agi_t, agi_unlinked) +
+			(sizeof(xfs_agino_t) * bucket_index);
+		xfs_trans_log_buf(tp, agibp, offset,
+				  (offset + sizeof(xfs_agino_t) - 1));
+	} else {
+		/*
+		 * We need to search the list for the inode being freed.
+		 */
+		next_agino = INT_GET(agi->agi_unlinked[bucket_index], ARCH_CONVERT);
+		last_ibp = NULL;
+		while (next_agino != agino) {
+			/*
+			 * If the last inode wasn't the one pointing to
+			 * us, then release its buffer since we're not
+			 * going to do anything with it.
+			 */
+			if (last_ibp != NULL) {
+				xfs_trans_brelse(tp, last_ibp);
+			}
+			next_ino = XFS_AGINO_TO_INO(mp, agno, next_agino);
+			error = xfs_inotobp(mp, tp, next_ino, &last_dip,
+					    &last_ibp, &last_offset);
+			if (error) {
+				cmn_err(CE_WARN,
+			"xfs_iunlink_remove: xfs_inotobp()  returned an error %d on %s.  Returning error.",
+					error, mp->m_fsname);
+				return error;
+			}
+			next_agino = INT_GET(last_dip->di_next_unlinked, ARCH_CONVERT);
+			ASSERT(next_agino != NULLAGINO);
+			ASSERT(next_agino != 0);
+		}
+		/*
+		 * Now last_ibp points to the buffer previous to us on
+		 * the unlinked list.  Pull us from the list.
+		 */
+		error = xfs_itobp(mp, tp, ip, &dip, &ibp, 0);
+		if (error) {
+			cmn_err(CE_WARN,
+				"xfs_iunlink_remove: xfs_itobp()  returned an error %d on %s.  Returning error.",
+				error, mp->m_fsname);
+			return error;
+		}
+		next_agino = INT_GET(dip->di_next_unlinked, ARCH_CONVERT);
+		ASSERT(next_agino != 0);
+		ASSERT(next_agino != agino);
+		if (next_agino != NULLAGINO) {
+			INT_SET(dip->di_next_unlinked, ARCH_CONVERT, NULLAGINO);
+			offset = ip->i_boffset +
+				offsetof(xfs_dinode_t, di_next_unlinked);
+			xfs_trans_inode_buf(tp, ibp);
+			xfs_trans_log_buf(tp, ibp, offset,
+					  (offset + sizeof(xfs_agino_t) - 1));
+			xfs_inobp_check(mp, ibp);
+		} else {
+			xfs_trans_brelse(tp, ibp);
+		}
+		/*
+		 * Point the previous inode on the list to the next inode.
+		 */
+		INT_SET(last_dip->di_next_unlinked, ARCH_CONVERT, next_agino);
+		ASSERT(next_agino != 0);
+		offset = last_offset + offsetof(xfs_dinode_t, di_next_unlinked);
+		xfs_trans_inode_buf(tp, last_ibp);
+		xfs_trans_log_buf(tp, last_ibp, offset,
+				  (offset + sizeof(xfs_agino_t) - 1));
+		xfs_inobp_check(mp, last_ibp);
+	}
+	return 0;
+}
+
+static __inline__ int xfs_inode_clean(xfs_inode_t *ip)
+{
+	return (((ip->i_itemp == NULL) ||
+		!(ip->i_itemp->ili_format.ilf_fields & XFS_ILOG_ALL)) &&
+		(ip->i_update_core == 0));
+}
+
+void
+xfs_ifree_cluster(
+	xfs_inode_t	*free_ip,
+	xfs_trans_t	*tp,
+	xfs_ino_t	inum)
+{
+	xfs_mount_t		*mp = free_ip->i_mount;
+	int			blks_per_cluster;
+	int			nbufs;
+	int			ninodes;
+	int			i, j, found, pre_flushed;
+	xfs_daddr_t		blkno;
+	xfs_buf_t		*bp;
+	xfs_ihash_t		*ih;
+	xfs_inode_t		*ip, **ip_found;
+	xfs_inode_log_item_t	*iip;
+	xfs_log_item_t		*lip;
+	SPLDECL(s);
+
+	if (mp->m_sb.sb_blocksize >= XFS_INODE_CLUSTER_SIZE(mp)) {
+		blks_per_cluster = 1;
+		ninodes = mp->m_sb.sb_inopblock;
+		nbufs = XFS_IALLOC_BLOCKS(mp);
+	} else {
+		blks_per_cluster = XFS_INODE_CLUSTER_SIZE(mp) /
+					mp->m_sb.sb_blocksize;
+		ninodes = blks_per_cluster * mp->m_sb.sb_inopblock;
+		nbufs = XFS_IALLOC_BLOCKS(mp) / blks_per_cluster;
+	}
+
+	ip_found = kmem_alloc(ninodes * sizeof(xfs_inode_t *), KM_NOFS);
+
+	for (j = 0; j < nbufs; j++, inum += ninodes) {
+		blkno = XFS_AGB_TO_DADDR(mp, XFS_INO_TO_AGNO(mp, inum),
+					 XFS_INO_TO_AGBNO(mp, inum));
+
+
+		/*
+		 * Look for each inode in memory and attempt to lock it,
+		 * we can be racing with flush and tail pushing here.
+		 * any inode we get the locks on, add to an array of
+		 * inode items to process later.
+		 *
+		 * The get the buffer lock, we could beat a flush
+		 * or tail pushing thread to the lock here, in which
+		 * case they will go looking for the inode buffer
+		 * and fail, we need some other form of interlock
+		 * here.
+		 */
+		found = 0;
+		for (i = 0; i < ninodes; i++) {
+			ih = XFS_IHASH(mp, inum + i);
+			read_lock(&ih->ih_lock);
+			for (ip = ih->ih_next; ip != NULL; ip = ip->i_next) {
+				if (ip->i_ino == inum + i)
+					break;
+			}
+
+			/* Inode not in memory or we found it already,
+			 * nothing to do
+			 */
+			if (!ip || (ip->i_flags & XFS_ISTALE)) {
+				read_unlock(&ih->ih_lock);
+				continue;
+			}
+
+			if (xfs_inode_clean(ip)) {
+				read_unlock(&ih->ih_lock);
+				continue;
+			}
+
+			/* If we can get the locks then add it to the
+			 * list, otherwise by the time we get the bp lock
+			 * below it will already be attached to the
+			 * inode buffer.
+			 */
+
+			/* This inode will already be locked - by us, lets
+			 * keep it that way.
+			 */
+
+			if (ip == free_ip) {
+				if (xfs_iflock_nowait(ip)) {
+					ip->i_flags |= XFS_ISTALE;
+
+					if (xfs_inode_clean(ip)) {
+						xfs_ifunlock(ip);
+					} else {
+						ip_found[found++] = ip;
+					}
+				}
+				read_unlock(&ih->ih_lock);
+				continue;
+			}
+
+			if (xfs_ilock_nowait(ip, XFS_ILOCK_EXCL)) {
+				if (xfs_iflock_nowait(ip)) {
+					ip->i_flags |= XFS_ISTALE;
+
+					if (xfs_inode_clean(ip)) {
+						xfs_ifunlock(ip);
+						xfs_iunlock(ip, XFS_ILOCK_EXCL);
+					} else {
+						ip_found[found++] = ip;
+					}
+				} else {
+					xfs_iunlock(ip, XFS_ILOCK_EXCL);
+				}
+			}
+
+			read_unlock(&ih->ih_lock);
+		}
+
+		bp = xfs_trans_get_buf(tp, mp->m_ddev_targp, blkno, 
+					mp->m_bsize * blks_per_cluster,
+					XFS_BUF_LOCK);
+
+		pre_flushed = 0;
+		lip = XFS_BUF_FSPRIVATE(bp, xfs_log_item_t *);
+		while (lip) {
+			if (lip->li_type == XFS_LI_INODE) {
+				iip = (xfs_inode_log_item_t *)lip;
+				ASSERT(iip->ili_logged == 1);
+				lip->li_cb = (void(*)(xfs_buf_t*,xfs_log_item_t*)) xfs_istale_done;
+				AIL_LOCK(mp,s);
+				iip->ili_flush_lsn = iip->ili_item.li_lsn;
+				AIL_UNLOCK(mp, s);
+				iip->ili_inode->i_flags |= XFS_ISTALE;
+				pre_flushed++;
+			}
+			lip = lip->li_bio_list;
+		}
+
+		for (i = 0; i < found; i++) {
+			ip = ip_found[i];
+			iip = ip->i_itemp;
+
+			if (!iip) {
+				ip->i_update_core = 0;
+				xfs_ifunlock(ip);
+				xfs_iunlock(ip, XFS_ILOCK_EXCL);
+				continue;
+			}
+
+			iip->ili_last_fields = iip->ili_format.ilf_fields;
+			iip->ili_format.ilf_fields = 0;
+			iip->ili_logged = 1;
+			AIL_LOCK(mp,s);
+			iip->ili_flush_lsn = iip->ili_item.li_lsn;
+			AIL_UNLOCK(mp, s);
+
+			xfs_buf_attach_iodone(bp,
+				(void(*)(xfs_buf_t*,xfs_log_item_t*))
+				xfs_istale_done, (xfs_log_item_t *)iip);
+			if (ip != free_ip) {
+				xfs_iunlock(ip, XFS_ILOCK_EXCL);
+			}
+		}
+
+		if (found || pre_flushed)
+			xfs_trans_stale_inode_buf(tp, bp);
+		xfs_trans_binval(tp, bp);
+	}
+
+	kmem_free(ip_found, ninodes * sizeof(xfs_inode_t *));
+}
+
+/*
+ * This is called to return an inode to the inode free list.
+ * The inode should already be truncated to 0 length and have
+ * no pages associated with it.  This routine also assumes that
+ * the inode is already a part of the transaction.
+ *
+ * The on-disk copy of the inode will have been added to the list
+ * of unlinked inodes in the AGI. We need to remove the inode from
+ * that list atomically with respect to freeing it here.
+ */
+int
+xfs_ifree(
+	xfs_trans_t	*tp,
+	xfs_inode_t	*ip,
+	xfs_bmap_free_t	*flist)
+{
+	int			error;
+	int			delete;
+	xfs_ino_t		first_ino;
+
+	ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
+	ASSERT(ip->i_transp == tp);
+	ASSERT(ip->i_d.di_nlink == 0);
+	ASSERT(ip->i_d.di_nextents == 0);
+	ASSERT(ip->i_d.di_anextents == 0);
+	ASSERT((ip->i_d.di_size == 0) ||
+	       ((ip->i_d.di_mode & S_IFMT) != S_IFREG));
+	ASSERT(ip->i_d.di_nblocks == 0);
+
+	/*
+	 * Pull the on-disk inode from the AGI unlinked list.
+	 */
+	error = xfs_iunlink_remove(tp, ip);
+	if (error != 0) {
+		return error;
+	}
+
+	error = xfs_difree(tp, ip->i_ino, flist, &delete, &first_ino);
+	if (error != 0) {
+		return error;
+	}
+	ip->i_d.di_mode = 0;		/* mark incore inode as free */
+	ip->i_d.di_flags = 0;
+	ip->i_d.di_dmevmask = 0;
+	ip->i_d.di_forkoff = 0;		/* mark the attr fork not in use */
+	ip->i_df.if_ext_max =
+		XFS_IFORK_DSIZE(ip) / (uint)sizeof(xfs_bmbt_rec_t);
+	ip->i_d.di_format = XFS_DINODE_FMT_EXTENTS;
+	ip->i_d.di_aformat = XFS_DINODE_FMT_EXTENTS;
+	/*
+	 * Bump the generation count so no one will be confused
+	 * by reincarnations of this inode.
+	 */
+	ip->i_d.di_gen++;
+	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+
+	if (delete) {
+		xfs_ifree_cluster(ip, tp, first_ino);
+	}
+
+	return 0;
+}
+
+/*
+ * Reallocate the space for if_broot based on the number of records
+ * being added or deleted as indicated in rec_diff.  Move the records
+ * and pointers in if_broot to fit the new size.  When shrinking this
+ * will eliminate holes between the records and pointers created by
+ * the caller.  When growing this will create holes to be filled in
+ * by the caller.
+ *
+ * The caller must not request to add more records than would fit in
+ * the on-disk inode root.  If the if_broot is currently NULL, then
+ * if we adding records one will be allocated.  The caller must also
+ * not request that the number of records go below zero, although
+ * it can go to zero.
+ *
+ * ip -- the inode whose if_broot area is changing
+ * ext_diff -- the change in the number of records, positive or negative,
+ *	 requested for the if_broot array.
+ */
+void
+xfs_iroot_realloc(
+	xfs_inode_t		*ip,
+	int			rec_diff,
+	int			whichfork)
+{
+	int			cur_max;
+	xfs_ifork_t		*ifp;
+	xfs_bmbt_block_t	*new_broot;
+	int			new_max;
+	size_t			new_size;
+	char			*np;
+	char			*op;
+
+	/*
+	 * Handle the degenerate case quietly.
+	 */
+	if (rec_diff == 0) {
+		return;
+	}
+
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	if (rec_diff > 0) {
+		/*
+		 * If there wasn't any memory allocated before, just
+		 * allocate it now and get out.
+		 */
+		if (ifp->if_broot_bytes == 0) {
+			new_size = (size_t)XFS_BMAP_BROOT_SPACE_CALC(rec_diff);
+			ifp->if_broot = (xfs_bmbt_block_t*)kmem_alloc(new_size,
+								     KM_SLEEP);
+			ifp->if_broot_bytes = (int)new_size;
+			return;
+		}
+
+		/*
+		 * If there is already an existing if_broot, then we need
+		 * to realloc() it and shift the pointers to their new
+		 * location.  The records don't change location because
+		 * they are kept butted up against the btree block header.
+		 */
+		cur_max = XFS_BMAP_BROOT_MAXRECS(ifp->if_broot_bytes);
+		new_max = cur_max + rec_diff;
+		new_size = (size_t)XFS_BMAP_BROOT_SPACE_CALC(new_max);
+		ifp->if_broot = (xfs_bmbt_block_t *)
+		  kmem_realloc(ifp->if_broot,
+				new_size,
+				(size_t)XFS_BMAP_BROOT_SPACE_CALC(cur_max), /* old size */
+				KM_SLEEP);
+		op = (char *)XFS_BMAP_BROOT_PTR_ADDR(ifp->if_broot, 1,
+						      ifp->if_broot_bytes);
+		np = (char *)XFS_BMAP_BROOT_PTR_ADDR(ifp->if_broot, 1,
+						      (int)new_size);
+		ifp->if_broot_bytes = (int)new_size;
+		ASSERT(ifp->if_broot_bytes <=
+			XFS_IFORK_SIZE(ip, whichfork) + XFS_BROOT_SIZE_ADJ);
+		memmove(np, op, cur_max * (uint)sizeof(xfs_dfsbno_t));
+		return;
+	}
+
+	/*
+	 * rec_diff is less than 0.  In this case, we are shrinking the
+	 * if_broot buffer.  It must already exist.  If we go to zero
+	 * records, just get rid of the root and clear the status bit.
+	 */
+	ASSERT((ifp->if_broot != NULL) && (ifp->if_broot_bytes > 0));
+	cur_max = XFS_BMAP_BROOT_MAXRECS(ifp->if_broot_bytes);
+	new_max = cur_max + rec_diff;
+	ASSERT(new_max >= 0);
+	if (new_max > 0)
+		new_size = (size_t)XFS_BMAP_BROOT_SPACE_CALC(new_max);
+	else
+		new_size = 0;
+	if (new_size > 0) {
+		new_broot = (xfs_bmbt_block_t *)kmem_alloc(new_size, KM_SLEEP);
+		/*
+		 * First copy over the btree block header.
+		 */
+		memcpy(new_broot, ifp->if_broot, sizeof(xfs_bmbt_block_t));
+	} else {
+		new_broot = NULL;
+		ifp->if_flags &= ~XFS_IFBROOT;
+	}
+
+	/*
+	 * Only copy the records and pointers if there are any.
+	 */
+	if (new_max > 0) {
+		/*
+		 * First copy the records.
+		 */
+		op = (char *)XFS_BMAP_BROOT_REC_ADDR(ifp->if_broot, 1,
+						     ifp->if_broot_bytes);
+		np = (char *)XFS_BMAP_BROOT_REC_ADDR(new_broot, 1,
+						     (int)new_size);
+		memcpy(np, op, new_max * (uint)sizeof(xfs_bmbt_rec_t));
+
+		/*
+		 * Then copy the pointers.
+		 */
+		op = (char *)XFS_BMAP_BROOT_PTR_ADDR(ifp->if_broot, 1,
+						     ifp->if_broot_bytes);
+		np = (char *)XFS_BMAP_BROOT_PTR_ADDR(new_broot, 1,
+						     (int)new_size);
+		memcpy(np, op, new_max * (uint)sizeof(xfs_dfsbno_t));
+	}
+	kmem_free(ifp->if_broot, ifp->if_broot_bytes);
+	ifp->if_broot = new_broot;
+	ifp->if_broot_bytes = (int)new_size;
+	ASSERT(ifp->if_broot_bytes <=
+		XFS_IFORK_SIZE(ip, whichfork) + XFS_BROOT_SIZE_ADJ);
+	return;
+}
+
+
+/*
+ * This is called when the amount of space needed for if_extents
+ * is increased or decreased.  The change in size is indicated by
+ * the number of extents that need to be added or deleted in the
+ * ext_diff parameter.
+ *
+ * If the amount of space needed has decreased below the size of the
+ * inline buffer, then switch to using the inline buffer.  Otherwise,
+ * use kmem_realloc() or kmem_alloc() to adjust the size of the buffer
+ * to what is needed.
+ *
+ * ip -- the inode whose if_extents area is changing
+ * ext_diff -- the change in the number of extents, positive or negative,
+ *	 requested for the if_extents array.
+ */
+void
+xfs_iext_realloc(
+	xfs_inode_t	*ip,
+	int		ext_diff,
+	int		whichfork)
+{
+	int		byte_diff;
+	xfs_ifork_t	*ifp;
+	int		new_size;
+	uint		rnew_size;
+
+	if (ext_diff == 0) {
+		return;
+	}
+
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	byte_diff = ext_diff * (uint)sizeof(xfs_bmbt_rec_t);
+	new_size = (int)ifp->if_bytes + byte_diff;
+	ASSERT(new_size >= 0);
+
+	if (new_size == 0) {
+		if (ifp->if_u1.if_extents != ifp->if_u2.if_inline_ext) {
+			ASSERT(ifp->if_real_bytes != 0);
+			kmem_free(ifp->if_u1.if_extents, ifp->if_real_bytes);
+		}
+		ifp->if_u1.if_extents = NULL;
+		rnew_size = 0;
+	} else if (new_size <= sizeof(ifp->if_u2.if_inline_ext)) {
+		/*
+		 * If the valid extents can fit in if_inline_ext,
+		 * copy them from the malloc'd vector and free it.
+		 */
+		if (ifp->if_u1.if_extents != ifp->if_u2.if_inline_ext) {
+			/*
+			 * For now, empty files are format EXTENTS,
+			 * so the if_extents pointer is null.
+			 */
+			if (ifp->if_u1.if_extents) {
+				memcpy(ifp->if_u2.if_inline_ext,
+					ifp->if_u1.if_extents, new_size);
+				kmem_free(ifp->if_u1.if_extents,
+					  ifp->if_real_bytes);
+			}
+			ifp->if_u1.if_extents = ifp->if_u2.if_inline_ext;
+		}
+		rnew_size = 0;
+	} else {
+		rnew_size = new_size;
+		if ((rnew_size & (rnew_size - 1)) != 0)
+			rnew_size = xfs_iroundup(rnew_size);
+		/*
+		 * Stuck with malloc/realloc.
+		 */
+		if (ifp->if_u1.if_extents == ifp->if_u2.if_inline_ext) {
+			ifp->if_u1.if_extents = (xfs_bmbt_rec_t *)
+				kmem_alloc(rnew_size, KM_SLEEP);
+			memcpy(ifp->if_u1.if_extents, ifp->if_u2.if_inline_ext,
+			      sizeof(ifp->if_u2.if_inline_ext));
+		} else if (rnew_size != ifp->if_real_bytes) {
+			ifp->if_u1.if_extents = (xfs_bmbt_rec_t *)
+			  kmem_realloc(ifp->if_u1.if_extents,
+					rnew_size,
+					ifp->if_real_bytes,
+					KM_NOFS);
+		}
+	}
+	ifp->if_real_bytes = rnew_size;
+	ifp->if_bytes = new_size;
+}
+
+
+/*
+ * This is called when the amount of space needed for if_data
+ * is increased or decreased.  The change in size is indicated by
+ * the number of bytes that need to be added or deleted in the
+ * byte_diff parameter.
+ *
+ * If the amount of space needed has decreased below the size of the
+ * inline buffer, then switch to using the inline buffer.  Otherwise,
+ * use kmem_realloc() or kmem_alloc() to adjust the size of the buffer
+ * to what is needed.
+ *
+ * ip -- the inode whose if_data area is changing
+ * byte_diff -- the change in the number of bytes, positive or negative,
+ *	 requested for the if_data array.
+ */
+void
+xfs_idata_realloc(
+	xfs_inode_t	*ip,
+	int		byte_diff,
+	int		whichfork)
+{
+	xfs_ifork_t	*ifp;
+	int		new_size;
+	int		real_size;
+
+	if (byte_diff == 0) {
+		return;
+	}
+
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	new_size = (int)ifp->if_bytes + byte_diff;
+	ASSERT(new_size >= 0);
+
+	if (new_size == 0) {
+		if (ifp->if_u1.if_data != ifp->if_u2.if_inline_data) {
+			kmem_free(ifp->if_u1.if_data, ifp->if_real_bytes);
+		}
+		ifp->if_u1.if_data = NULL;
+		real_size = 0;
+	} else if (new_size <= sizeof(ifp->if_u2.if_inline_data)) {
+		/*
+		 * If the valid extents/data can fit in if_inline_ext/data,
+		 * copy them from the malloc'd vector and free it.
+		 */
+		if (ifp->if_u1.if_data == NULL) {
+			ifp->if_u1.if_data = ifp->if_u2.if_inline_data;
+		} else if (ifp->if_u1.if_data != ifp->if_u2.if_inline_data) {
+			ASSERT(ifp->if_real_bytes != 0);
+			memcpy(ifp->if_u2.if_inline_data, ifp->if_u1.if_data,
+			      new_size);
+			kmem_free(ifp->if_u1.if_data, ifp->if_real_bytes);
+			ifp->if_u1.if_data = ifp->if_u2.if_inline_data;
+		}
+		real_size = 0;
+	} else {
+		/*
+		 * Stuck with malloc/realloc.
+		 * For inline data, the underlying buffer must be
+		 * a multiple of 4 bytes in size so that it can be
+		 * logged and stay on word boundaries.  We enforce
+		 * that here.
+		 */
+		real_size = roundup(new_size, 4);
+		if (ifp->if_u1.if_data == NULL) {
+			ASSERT(ifp->if_real_bytes == 0);
+			ifp->if_u1.if_data = kmem_alloc(real_size, KM_SLEEP);
+		} else if (ifp->if_u1.if_data != ifp->if_u2.if_inline_data) {
+			/*
+			 * Only do the realloc if the underlying size
+			 * is really changing.
+			 */
+			if (ifp->if_real_bytes != real_size) {
+				ifp->if_u1.if_data =
+					kmem_realloc(ifp->if_u1.if_data,
+							real_size,
+							ifp->if_real_bytes,
+							KM_SLEEP);
+			}
+		} else {
+			ASSERT(ifp->if_real_bytes == 0);
+			ifp->if_u1.if_data = kmem_alloc(real_size, KM_SLEEP);
+			memcpy(ifp->if_u1.if_data, ifp->if_u2.if_inline_data,
+				ifp->if_bytes);
+		}
+	}
+	ifp->if_real_bytes = real_size;
+	ifp->if_bytes = new_size;
+	ASSERT(ifp->if_bytes <= XFS_IFORK_SIZE(ip, whichfork));
+}
+
+
+
+
+/*
+ * Map inode to disk block and offset.
+ *
+ * mp -- the mount point structure for the current file system
+ * tp -- the current transaction
+ * ino -- the inode number of the inode to be located
+ * imap -- this structure is filled in with the information necessary
+ *	 to retrieve the given inode from disk
+ * flags -- flags to pass to xfs_dilocate indicating whether or not
+ *	 lookups in the inode btree were OK or not
+ */
+int
+xfs_imap(
+	xfs_mount_t	*mp,
+	xfs_trans_t	*tp,
+	xfs_ino_t	ino,
+	xfs_imap_t	*imap,
+	uint		flags)
+{
+	xfs_fsblock_t	fsbno;
+	int		len;
+	int		off;
+	int		error;
+
+	fsbno = imap->im_blkno ?
+		XFS_DADDR_TO_FSB(mp, imap->im_blkno) : NULLFSBLOCK;
+	error = xfs_dilocate(mp, tp, ino, &fsbno, &len, &off, flags);
+	if (error != 0) {
+		return error;
+	}
+	imap->im_blkno = XFS_FSB_TO_DADDR(mp, fsbno);
+	imap->im_len = XFS_FSB_TO_BB(mp, len);
+	imap->im_agblkno = XFS_FSB_TO_AGBNO(mp, fsbno);
+	imap->im_ioffset = (ushort)off;
+	imap->im_boffset = (ushort)(off << mp->m_sb.sb_inodelog);
+	return 0;
+}
+
+void
+xfs_idestroy_fork(
+	xfs_inode_t	*ip,
+	int		whichfork)
+{
+	xfs_ifork_t	*ifp;
+
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	if (ifp->if_broot != NULL) {
+		kmem_free(ifp->if_broot, ifp->if_broot_bytes);
+		ifp->if_broot = NULL;
+	}
+
+	/*
+	 * If the format is local, then we can't have an extents
+	 * array so just look for an inline data array.  If we're
+	 * not local then we may or may not have an extents list,
+	 * so check and free it up if we do.
+	 */
+	if (XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_LOCAL) {
+		if ((ifp->if_u1.if_data != ifp->if_u2.if_inline_data) &&
+		    (ifp->if_u1.if_data != NULL)) {
+			ASSERT(ifp->if_real_bytes != 0);
+			kmem_free(ifp->if_u1.if_data, ifp->if_real_bytes);
+			ifp->if_u1.if_data = NULL;
+			ifp->if_real_bytes = 0;
+		}
+	} else if ((ifp->if_flags & XFS_IFEXTENTS) &&
+		   (ifp->if_u1.if_extents != NULL) &&
+		   (ifp->if_u1.if_extents != ifp->if_u2.if_inline_ext)) {
+		ASSERT(ifp->if_real_bytes != 0);
+		kmem_free(ifp->if_u1.if_extents, ifp->if_real_bytes);
+		ifp->if_u1.if_extents = NULL;
+		ifp->if_real_bytes = 0;
+	}
+	ASSERT(ifp->if_u1.if_extents == NULL ||
+	       ifp->if_u1.if_extents == ifp->if_u2.if_inline_ext);
+	ASSERT(ifp->if_real_bytes == 0);
+	if (whichfork == XFS_ATTR_FORK) {
+		kmem_zone_free(xfs_ifork_zone, ip->i_afp);
+		ip->i_afp = NULL;
+	}
+}
+
+/*
+ * This is called free all the memory associated with an inode.
+ * It must free the inode itself and any buffers allocated for
+ * if_extents/if_data and if_broot.  It must also free the lock
+ * associated with the inode.
+ */
+void
+xfs_idestroy(
+	xfs_inode_t	*ip)
+{
+
+	switch (ip->i_d.di_mode & S_IFMT) {
+	case S_IFREG:
+	case S_IFDIR:
+	case S_IFLNK:
+		xfs_idestroy_fork(ip, XFS_DATA_FORK);
+		break;
+	}
+	if (ip->i_afp)
+		xfs_idestroy_fork(ip, XFS_ATTR_FORK);
+	mrfree(&ip->i_lock);
+	mrfree(&ip->i_iolock);
+	freesema(&ip->i_flock);
+#ifdef XFS_BMAP_TRACE
+	ktrace_free(ip->i_xtrace);
+#endif
+#ifdef XFS_BMBT_TRACE
+	ktrace_free(ip->i_btrace);
+#endif
+#ifdef XFS_RW_TRACE
+	ktrace_free(ip->i_rwtrace);
+#endif
+#ifdef XFS_ILOCK_TRACE
+	ktrace_free(ip->i_lock_trace);
+#endif
+#ifdef XFS_DIR2_TRACE
+	ktrace_free(ip->i_dir_trace);
+#endif
+	if (ip->i_itemp) {
+		/* XXXdpd should be able to assert this but shutdown
+		 * is leaving the AIL behind. */
+		ASSERT(((ip->i_itemp->ili_item.li_flags & XFS_LI_IN_AIL) == 0) ||
+		       XFS_FORCED_SHUTDOWN(ip->i_mount));
+		xfs_inode_item_destroy(ip);
+	}
+	kmem_zone_free(xfs_inode_zone, ip);
+}
+
+
+/*
+ * Increment the pin count of the given buffer.
+ * This value is protected by ipinlock spinlock in the mount structure.
+ */
+void
+xfs_ipin(
+	xfs_inode_t	*ip)
+{
+	ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
+
+	atomic_inc(&ip->i_pincount);
+}
+
+/*
+ * Decrement the pin count of the given inode, and wake up
+ * anyone in xfs_iwait_unpin() if the count goes to 0.  The
+ * inode must have been previoulsy pinned with a call to xfs_ipin().
+ */
+void
+xfs_iunpin(
+	xfs_inode_t	*ip)
+{
+	ASSERT(atomic_read(&ip->i_pincount) > 0);
+
+	if (atomic_dec_and_test(&ip->i_pincount)) {
+		vnode_t	*vp = XFS_ITOV_NULL(ip);
+
+		/* make sync come back and flush this inode */
+		if (vp) {
+			struct inode	*inode = LINVFS_GET_IP(vp);
+
+			if (!(inode->i_state & I_NEW))
+				mark_inode_dirty_sync(inode);
+		}
+
+		wake_up(&ip->i_ipin_wait);
+	}
+}
+
+/*
+ * This is called to wait for the given inode to be unpinned.
+ * It will sleep until this happens.  The caller must have the
+ * inode locked in at least shared mode so that the buffer cannot
+ * be subsequently pinned once someone is waiting for it to be
+ * unpinned.
+ */
+void
+xfs_iunpin_wait(
+	xfs_inode_t	*ip)
+{
+	xfs_inode_log_item_t	*iip;
+	xfs_lsn_t	lsn;
+
+	ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE | MR_ACCESS));
+
+	if (atomic_read(&ip->i_pincount) == 0) {
+		return;
+	}
+
+	iip = ip->i_itemp;
+	if (iip && iip->ili_last_lsn) {
+		lsn = iip->ili_last_lsn;
+	} else {
+		lsn = (xfs_lsn_t)0;
+	}
+
+	/*
+	 * Give the log a push so we don't wait here too long.
+	 */
+	xfs_log_force(ip->i_mount, lsn, XFS_LOG_FORCE);
+
+	wait_event(ip->i_ipin_wait, (atomic_read(&ip->i_pincount) == 0));
+}
+
+
+/*
+ * xfs_iextents_copy()
+ *
+ * This is called to copy the REAL extents (as opposed to the delayed
+ * allocation extents) from the inode into the given buffer.  It
+ * returns the number of bytes copied into the buffer.
+ *
+ * If there are no delayed allocation extents, then we can just
+ * memcpy() the extents into the buffer.  Otherwise, we need to
+ * examine each extent in turn and skip those which are delayed.
+ */
+int
+xfs_iextents_copy(
+	xfs_inode_t		*ip,
+	xfs_bmbt_rec_t		*buffer,
+	int			whichfork)
+{
+	int			copied;
+	xfs_bmbt_rec_t		*dest_ep;
+	xfs_bmbt_rec_t		*ep;
+#ifdef XFS_BMAP_TRACE
+	static char		fname[] = "xfs_iextents_copy";
+#endif
+	int			i;
+	xfs_ifork_t		*ifp;
+	int			nrecs;
+	xfs_fsblock_t		start_block;
+
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE|MR_ACCESS));
+	ASSERT(ifp->if_bytes > 0);
+
+	nrecs = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+	xfs_bmap_trace_exlist(fname, ip, nrecs, whichfork);
+	ASSERT(nrecs > 0);
+
+	/*
+	 * There are some delayed allocation extents in the
+	 * inode, so copy the extents one at a time and skip
+	 * the delayed ones.  There must be at least one
+	 * non-delayed extent.
+	 */
+	ep = ifp->if_u1.if_extents;
+	dest_ep = buffer;
+	copied = 0;
+	for (i = 0; i < nrecs; i++) {
+		start_block = xfs_bmbt_get_startblock(ep);
+		if (ISNULLSTARTBLOCK(start_block)) {
+			/*
+			 * It's a delayed allocation extent, so skip it.
+			 */
+			ep++;
+			continue;
+		}
+
+		/* Translate to on disk format */
+		put_unaligned(INT_GET(ep->l0, ARCH_CONVERT),
+			      (__uint64_t*)&dest_ep->l0);
+		put_unaligned(INT_GET(ep->l1, ARCH_CONVERT),
+			      (__uint64_t*)&dest_ep->l1);
+		dest_ep++;
+		ep++;
+		copied++;
+	}
+	ASSERT(copied != 0);
+	xfs_validate_extents(buffer, copied, 1, XFS_EXTFMT_INODE(ip));
+
+	return (copied * (uint)sizeof(xfs_bmbt_rec_t));
+}
+
+/*
+ * Each of the following cases stores data into the same region
+ * of the on-disk inode, so only one of them can be valid at
+ * any given time. While it is possible to have conflicting formats
+ * and log flags, e.g. having XFS_ILOG_?DATA set when the fork is
+ * in EXTENTS format, this can only happen when the fork has
+ * changed formats after being modified but before being flushed.
+ * In these cases, the format always takes precedence, because the
+ * format indicates the current state of the fork.
+ */
+/*ARGSUSED*/
+STATIC int
+xfs_iflush_fork(
+	xfs_inode_t		*ip,
+	xfs_dinode_t		*dip,
+	xfs_inode_log_item_t	*iip,
+	int			whichfork,
+	xfs_buf_t		*bp)
+{
+	char			*cp;
+	xfs_ifork_t		*ifp;
+	xfs_mount_t		*mp;
+#ifdef XFS_TRANS_DEBUG
+	int			first;
+#endif
+	static const short	brootflag[2] =
+		{ XFS_ILOG_DBROOT, XFS_ILOG_ABROOT };
+	static const short	dataflag[2] =
+		{ XFS_ILOG_DDATA, XFS_ILOG_ADATA };
+	static const short	extflag[2] =
+		{ XFS_ILOG_DEXT, XFS_ILOG_AEXT };
+
+	if (iip == NULL)
+		return 0;
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	/*
+	 * This can happen if we gave up in iformat in an error path,
+	 * for the attribute fork.
+	 */
+	if (ifp == NULL) {
+		ASSERT(whichfork == XFS_ATTR_FORK);
+		return 0;
+	}
+	cp = XFS_DFORK_PTR_ARCH(dip, whichfork, ARCH_CONVERT);
+	mp = ip->i_mount;
+	switch (XFS_IFORK_FORMAT(ip, whichfork)) {
+	case XFS_DINODE_FMT_LOCAL:
+		if ((iip->ili_format.ilf_fields & dataflag[whichfork]) &&
+		    (ifp->if_bytes > 0)) {
+			ASSERT(ifp->if_u1.if_data != NULL);
+			ASSERT(ifp->if_bytes <= XFS_IFORK_SIZE(ip, whichfork));
+			memcpy(cp, ifp->if_u1.if_data, ifp->if_bytes);
+		}
+		if (whichfork == XFS_DATA_FORK) {
+			if (unlikely(XFS_DIR_SHORTFORM_VALIDATE_ONDISK(mp, dip))) {
+				XFS_ERROR_REPORT("xfs_iflush_fork",
+						 XFS_ERRLEVEL_LOW, mp);
+				return XFS_ERROR(EFSCORRUPTED);
+			}
+		}
+		break;
+
+	case XFS_DINODE_FMT_EXTENTS:
+		ASSERT((ifp->if_flags & XFS_IFEXTENTS) ||
+		       !(iip->ili_format.ilf_fields & extflag[whichfork]));
+		ASSERT((ifp->if_u1.if_extents != NULL) || (ifp->if_bytes == 0));
+		ASSERT((ifp->if_u1.if_extents == NULL) || (ifp->if_bytes > 0));
+		if ((iip->ili_format.ilf_fields & extflag[whichfork]) &&
+		    (ifp->if_bytes > 0)) {
+			ASSERT(XFS_IFORK_NEXTENTS(ip, whichfork) > 0);
+			(void)xfs_iextents_copy(ip, (xfs_bmbt_rec_t *)cp,
+				whichfork);
+		}
+		break;
+
+	case XFS_DINODE_FMT_BTREE:
+		if ((iip->ili_format.ilf_fields & brootflag[whichfork]) &&
+		    (ifp->if_broot_bytes > 0)) {
+			ASSERT(ifp->if_broot != NULL);
+			ASSERT(ifp->if_broot_bytes <=
+			       (XFS_IFORK_SIZE(ip, whichfork) +
+				XFS_BROOT_SIZE_ADJ));
+			xfs_bmbt_to_bmdr(ifp->if_broot, ifp->if_broot_bytes,
+				(xfs_bmdr_block_t *)cp,
+				XFS_DFORK_SIZE_ARCH(dip, mp, whichfork, ARCH_CONVERT));
+		}
+		break;
+
+	case XFS_DINODE_FMT_DEV:
+		if (iip->ili_format.ilf_fields & XFS_ILOG_DEV) {
+			ASSERT(whichfork == XFS_DATA_FORK);
+			INT_SET(dip->di_u.di_dev, ARCH_CONVERT, ip->i_df.if_u2.if_rdev);
+		}
+		break;
+
+	case XFS_DINODE_FMT_UUID:
+		if (iip->ili_format.ilf_fields & XFS_ILOG_UUID) {
+			ASSERT(whichfork == XFS_DATA_FORK);
+			memcpy(&dip->di_u.di_muuid, &ip->i_df.if_u2.if_uuid,
+				sizeof(uuid_t));
+		}
+		break;
+
+	default:
+		ASSERT(0);
+		break;
+	}
+
+	return 0;
+}
+
+/*
+ * xfs_iflush() will write a modified inode's changes out to the
+ * inode's on disk home.  The caller must have the inode lock held
+ * in at least shared mode and the inode flush semaphore must be
+ * held as well.  The inode lock will still be held upon return from
+ * the call and the caller is free to unlock it.
+ * The inode flush lock will be unlocked when the inode reaches the disk.
+ * The flags indicate how the inode's buffer should be written out.
+ */
+int
+xfs_iflush(
+	xfs_inode_t		*ip,
+	uint			flags)
+{
+	xfs_inode_log_item_t	*iip;
+	xfs_buf_t		*bp;
+	xfs_dinode_t		*dip;
+	xfs_mount_t		*mp;
+	int			error;
+	/* REFERENCED */
+	xfs_chash_t		*ch;
+	xfs_inode_t		*iq;
+	int			clcount;	/* count of inodes clustered */
+	int			bufwasdelwri;
+	enum { INT_DELWRI = (1 << 0), INT_ASYNC = (1 << 1) };
+	SPLDECL(s);
+
+	XFS_STATS_INC(xs_iflush_count);
+
+	ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE|MR_ACCESS));
+	ASSERT(valusema(&ip->i_flock) <= 0);
+	ASSERT(ip->i_d.di_format != XFS_DINODE_FMT_BTREE ||
+	       ip->i_d.di_nextents > ip->i_df.if_ext_max);
+
+	iip = ip->i_itemp;
+	mp = ip->i_mount;
+
+	/*
+	 * If the inode isn't dirty, then just release the inode
+	 * flush lock and do nothing.
+	 */
+	if ((ip->i_update_core == 0) &&
+	    ((iip == NULL) || !(iip->ili_format.ilf_fields & XFS_ILOG_ALL))) {
+		ASSERT((iip != NULL) ?
+			 !(iip->ili_item.li_flags & XFS_LI_IN_AIL) : 1);
+		xfs_ifunlock(ip);
+		return 0;
+	}
+
+	/*
+	 * We can't flush the inode until it is unpinned, so
+	 * wait for it.  We know noone new can pin it, because
+	 * we are holding the inode lock shared and you need
+	 * to hold it exclusively to pin the inode.
+	 */
+	xfs_iunpin_wait(ip);
+
+	/*
+	 * This may have been unpinned because the filesystem is shutting
+	 * down forcibly. If that's the case we must not write this inode
+	 * to disk, because the log record didn't make it to disk!
+	 */
+	if (XFS_FORCED_SHUTDOWN(mp)) {
+		ip->i_update_core = 0;
+		if (iip)
+			iip->ili_format.ilf_fields = 0;
+		xfs_ifunlock(ip);
+		return XFS_ERROR(EIO);
+	}
+
+	/*
+	 * Get the buffer containing the on-disk inode.
+	 */
+	error = xfs_itobp(mp, NULL, ip, &dip, &bp, 0);
+	if (error != 0) {
+		xfs_ifunlock(ip);
+		return error;
+	}
+
+	/*
+	 * Decide how buffer will be flushed out.  This is done before
+	 * the call to xfs_iflush_int because this field is zeroed by it.
+	 */
+	if (iip != NULL && iip->ili_format.ilf_fields != 0) {
+		/*
+		 * Flush out the inode buffer according to the directions
+		 * of the caller.  In the cases where the caller has given
+		 * us a choice choose the non-delwri case.  This is because
+		 * the inode is in the AIL and we need to get it out soon.
+		 */
+		switch (flags) {
+		case XFS_IFLUSH_SYNC:
+		case XFS_IFLUSH_DELWRI_ELSE_SYNC:
+			flags = 0;
+			break;
+		case XFS_IFLUSH_ASYNC:
+		case XFS_IFLUSH_DELWRI_ELSE_ASYNC:
+			flags = INT_ASYNC;
+			break;
+		case XFS_IFLUSH_DELWRI:
+			flags = INT_DELWRI;
+			break;
+		default:
+			ASSERT(0);
+			flags = 0;
+			break;
+		}
+	} else {
+		switch (flags) {
+		case XFS_IFLUSH_DELWRI_ELSE_SYNC:
+		case XFS_IFLUSH_DELWRI_ELSE_ASYNC:
+		case XFS_IFLUSH_DELWRI:
+			flags = INT_DELWRI;
+			break;
+		case XFS_IFLUSH_ASYNC:
+			flags = INT_ASYNC;
+			break;
+		case XFS_IFLUSH_SYNC:
+			flags = 0;
+			break;
+		default:
+			ASSERT(0);
+			flags = 0;
+			break;
+		}
+	}
+
+	/*
+	 * First flush out the inode that xfs_iflush was called with.
+	 */
+	error = xfs_iflush_int(ip, bp);
+	if (error) {
+		goto corrupt_out;
+	}
+
+	/*
+	 * inode clustering:
+	 * see if other inodes can be gathered into this write
+	 */
+
+	ip->i_chash->chl_buf = bp;
+
+	ch = XFS_CHASH(mp, ip->i_blkno);
+	s = mutex_spinlock(&ch->ch_lock);
+
+	clcount = 0;
+	for (iq = ip->i_cnext; iq != ip; iq = iq->i_cnext) {
+		/*
+		 * Do an un-protected check to see if the inode is dirty and
+		 * is a candidate for flushing.  These checks will be repeated
+		 * later after the appropriate locks are acquired.
+		 */
+		iip = iq->i_itemp;
+		if ((iq->i_update_core == 0) &&
+		    ((iip == NULL) ||
+		     !(iip->ili_format.ilf_fields & XFS_ILOG_ALL)) &&
+		      xfs_ipincount(iq) == 0) {
+			continue;
+		}
+
+		/*
+		 * Try to get locks.  If any are unavailable,
+		 * then this inode cannot be flushed and is skipped.
+		 */
+
+		/* get inode locks (just i_lock) */
+		if (xfs_ilock_nowait(iq, XFS_ILOCK_SHARED)) {
+			/* get inode flush lock */
+			if (xfs_iflock_nowait(iq)) {
+				/* check if pinned */
+				if (xfs_ipincount(iq) == 0) {
+					/* arriving here means that
+					 * this inode can be flushed.
+					 * first re-check that it's
+					 * dirty
+					 */
+					iip = iq->i_itemp;
+					if ((iq->i_update_core != 0)||
+					    ((iip != NULL) &&
+					     (iip->ili_format.ilf_fields & XFS_ILOG_ALL))) {
+						clcount++;
+						error = xfs_iflush_int(iq, bp);
+						if (error) {
+							xfs_iunlock(iq,
+								    XFS_ILOCK_SHARED);
+							goto cluster_corrupt_out;
+						}
+					} else {
+						xfs_ifunlock(iq);
+					}
+				} else {
+					xfs_ifunlock(iq);
+				}
+			}
+			xfs_iunlock(iq, XFS_ILOCK_SHARED);
+		}
+	}
+	mutex_spinunlock(&ch->ch_lock, s);
+
+	if (clcount) {
+		XFS_STATS_INC(xs_icluster_flushcnt);
+		XFS_STATS_ADD(xs_icluster_flushinode, clcount);
+	}
+
+	/*
+	 * If the buffer is pinned then push on the log so we won't
+	 * get stuck waiting in the write for too long.
+	 */
+	if (XFS_BUF_ISPINNED(bp)){
+		xfs_log_force(mp, (xfs_lsn_t)0, XFS_LOG_FORCE);
+	}
+
+	if (flags & INT_DELWRI) {
+		xfs_bdwrite(mp, bp);
+	} else if (flags & INT_ASYNC) {
+		xfs_bawrite(mp, bp);
+	} else {
+		error = xfs_bwrite(mp, bp);
+	}
+	return error;
+
+corrupt_out:
+	xfs_buf_relse(bp);
+	xfs_force_shutdown(mp, XFS_CORRUPT_INCORE);
+	xfs_iflush_abort(ip);
+	/*
+	 * Unlocks the flush lock
+	 */
+	return XFS_ERROR(EFSCORRUPTED);
+
+cluster_corrupt_out:
+	/* Corruption detected in the clustering loop.  Invalidate the
+	 * inode buffer and shut down the filesystem.
+	 */
+	mutex_spinunlock(&ch->ch_lock, s);
+
+	/*
+	 * Clean up the buffer.  If it was B_DELWRI, just release it --
+	 * brelse can handle it with no problems.  If not, shut down the
+	 * filesystem before releasing the buffer.
+	 */
+	if ((bufwasdelwri= XFS_BUF_ISDELAYWRITE(bp))) {
+		xfs_buf_relse(bp);
+	}
+
+	xfs_force_shutdown(mp, XFS_CORRUPT_INCORE);
+
+	if(!bufwasdelwri)  {
+		/*
+		 * Just like incore_relse: if we have b_iodone functions,
+		 * mark the buffer as an error and call them.  Otherwise
+		 * mark it as stale and brelse.
+		 */
+		if (XFS_BUF_IODONE_FUNC(bp)) {
+			XFS_BUF_CLR_BDSTRAT_FUNC(bp);
+			XFS_BUF_UNDONE(bp);
+			XFS_BUF_STALE(bp);
+			XFS_BUF_SHUT(bp);
+			XFS_BUF_ERROR(bp,EIO);
+			xfs_biodone(bp);
+		} else {
+			XFS_BUF_STALE(bp);
+			xfs_buf_relse(bp);
+		}
+	}
+
+	xfs_iflush_abort(iq);
+	/*
+	 * Unlocks the flush lock
+	 */
+	return XFS_ERROR(EFSCORRUPTED);
+}
+
+
+STATIC int
+xfs_iflush_int(
+	xfs_inode_t		*ip,
+	xfs_buf_t		*bp)
+{
+	xfs_inode_log_item_t	*iip;
+	xfs_dinode_t		*dip;
+	xfs_mount_t		*mp;
+#ifdef XFS_TRANS_DEBUG
+	int			first;
+#endif
+	SPLDECL(s);
+
+	ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE|MR_ACCESS));
+	ASSERT(valusema(&ip->i_flock) <= 0);
+	ASSERT(ip->i_d.di_format != XFS_DINODE_FMT_BTREE ||
+	       ip->i_d.di_nextents > ip->i_df.if_ext_max);
+
+	iip = ip->i_itemp;
+	mp = ip->i_mount;
+
+
+	/*
+	 * If the inode isn't dirty, then just release the inode
+	 * flush lock and do nothing.
+	 */
+	if ((ip->i_update_core == 0) &&
+	    ((iip == NULL) || !(iip->ili_format.ilf_fields & XFS_ILOG_ALL))) {
+		xfs_ifunlock(ip);
+		return 0;
+	}
+
+	/* set *dip = inode's place in the buffer */
+	dip = (xfs_dinode_t *)xfs_buf_offset(bp, ip->i_boffset);
+
+	/*
+	 * Clear i_update_core before copying out the data.
+	 * This is for coordination with our timestamp updates
+	 * that don't hold the inode lock. They will always
+	 * update the timestamps BEFORE setting i_update_core,
+	 * so if we clear i_update_core after they set it we
+	 * are guaranteed to see their updates to the timestamps.
+	 * I believe that this depends on strongly ordered memory
+	 * semantics, but we have that.  We use the SYNCHRONIZE
+	 * macro to make sure that the compiler does not reorder
+	 * the i_update_core access below the data copy below.
+	 */
+	ip->i_update_core = 0;
+	SYNCHRONIZE();
+
+	if (XFS_TEST_ERROR(INT_GET(dip->di_core.di_magic,ARCH_CONVERT) != XFS_DINODE_MAGIC,
+			       mp, XFS_ERRTAG_IFLUSH_1, XFS_RANDOM_IFLUSH_1)) {
+		xfs_cmn_err(XFS_PTAG_IFLUSH, CE_ALERT, mp,
+		    "xfs_iflush: Bad inode %Lu magic number 0x%x, ptr 0x%p",
+			ip->i_ino, (int) INT_GET(dip->di_core.di_magic, ARCH_CONVERT), dip);
+		goto corrupt_out;
+	}
+	if (XFS_TEST_ERROR(ip->i_d.di_magic != XFS_DINODE_MAGIC,
+				mp, XFS_ERRTAG_IFLUSH_2, XFS_RANDOM_IFLUSH_2)) {
+		xfs_cmn_err(XFS_PTAG_IFLUSH, CE_ALERT, mp,
+			"xfs_iflush: Bad inode %Lu, ptr 0x%p, magic number 0x%x",
+			ip->i_ino, ip, ip->i_d.di_magic);
+		goto corrupt_out;
+	}
+	if ((ip->i_d.di_mode & S_IFMT) == S_IFREG) {
+		if (XFS_TEST_ERROR(
+		    (ip->i_d.di_format != XFS_DINODE_FMT_EXTENTS) &&
+		    (ip->i_d.di_format != XFS_DINODE_FMT_BTREE),
+		    mp, XFS_ERRTAG_IFLUSH_3, XFS_RANDOM_IFLUSH_3)) {
+			xfs_cmn_err(XFS_PTAG_IFLUSH, CE_ALERT, mp,
+				"xfs_iflush: Bad regular inode %Lu, ptr 0x%p",
+				ip->i_ino, ip);
+			goto corrupt_out;
+		}
+	} else if ((ip->i_d.di_mode & S_IFMT) == S_IFDIR) {
+		if (XFS_TEST_ERROR(
+		    (ip->i_d.di_format != XFS_DINODE_FMT_EXTENTS) &&
+		    (ip->i_d.di_format != XFS_DINODE_FMT_BTREE) &&
+		    (ip->i_d.di_format != XFS_DINODE_FMT_LOCAL),
+		    mp, XFS_ERRTAG_IFLUSH_4, XFS_RANDOM_IFLUSH_4)) {
+			xfs_cmn_err(XFS_PTAG_IFLUSH, CE_ALERT, mp,
+				"xfs_iflush: Bad directory inode %Lu, ptr 0x%p",
+				ip->i_ino, ip);
+			goto corrupt_out;
+		}
+	}
+	if (XFS_TEST_ERROR(ip->i_d.di_nextents + ip->i_d.di_anextents >
+				ip->i_d.di_nblocks, mp, XFS_ERRTAG_IFLUSH_5,
+				XFS_RANDOM_IFLUSH_5)) {
+		xfs_cmn_err(XFS_PTAG_IFLUSH, CE_ALERT, mp,
+			"xfs_iflush: detected corrupt incore inode %Lu, total extents = %d, nblocks = %Ld, ptr 0x%p",
+			ip->i_ino,
+			ip->i_d.di_nextents + ip->i_d.di_anextents,
+			ip->i_d.di_nblocks,
+			ip);
+		goto corrupt_out;
+	}
+	if (XFS_TEST_ERROR(ip->i_d.di_forkoff > mp->m_sb.sb_inodesize,
+				mp, XFS_ERRTAG_IFLUSH_6, XFS_RANDOM_IFLUSH_6)) {
+		xfs_cmn_err(XFS_PTAG_IFLUSH, CE_ALERT, mp,
+			"xfs_iflush: bad inode %Lu, forkoff 0x%x, ptr 0x%p",
+			ip->i_ino, ip->i_d.di_forkoff, ip);
+		goto corrupt_out;
+	}
+	/*
+	 * bump the flush iteration count, used to detect flushes which
+	 * postdate a log record during recovery.
+	 */
+
+	ip->i_d.di_flushiter++;
+
+	/*
+	 * Copy the dirty parts of the inode into the on-disk
+	 * inode.  We always copy out the core of the inode,
+	 * because if the inode is dirty at all the core must
+	 * be.
+	 */
+	xfs_xlate_dinode_core((xfs_caddr_t)&(dip->di_core), &(ip->i_d),
+		-1, ARCH_CONVERT);
+
+	/* Wrap, we never let the log put out DI_MAX_FLUSH */
+	if (ip->i_d.di_flushiter == DI_MAX_FLUSH)
+		ip->i_d.di_flushiter = 0;
+
+	/*
+	 * If this is really an old format inode and the superblock version
+	 * has not been updated to support only new format inodes, then
+	 * convert back to the old inode format.  If the superblock version
+	 * has been updated, then make the conversion permanent.
+	 */
+	ASSERT(ip->i_d.di_version == XFS_DINODE_VERSION_1 ||
+	       XFS_SB_VERSION_HASNLINK(&mp->m_sb));
+	if (ip->i_d.di_version == XFS_DINODE_VERSION_1) {
+		if (!XFS_SB_VERSION_HASNLINK(&mp->m_sb)) {
+			/*
+			 * Convert it back.
+			 */
+			ASSERT(ip->i_d.di_nlink <= XFS_MAXLINK_1);
+			INT_SET(dip->di_core.di_onlink, ARCH_CONVERT, ip->i_d.di_nlink);
+		} else {
+			/*
+			 * The superblock version has already been bumped,
+			 * so just make the conversion to the new inode
+			 * format permanent.
+			 */
+			ip->i_d.di_version = XFS_DINODE_VERSION_2;
+			INT_SET(dip->di_core.di_version, ARCH_CONVERT, XFS_DINODE_VERSION_2);
+			ip->i_d.di_onlink = 0;
+			INT_ZERO(dip->di_core.di_onlink, ARCH_CONVERT);
+			memset(&(ip->i_d.di_pad[0]), 0, sizeof(ip->i_d.di_pad));
+			memset(&(dip->di_core.di_pad[0]), 0,
+			      sizeof(dip->di_core.di_pad));
+			ASSERT(ip->i_d.di_projid == 0);
+		}
+	}
+
+	if (xfs_iflush_fork(ip, dip, iip, XFS_DATA_FORK, bp) == EFSCORRUPTED) {
+		goto corrupt_out;
+	}
+
+	if (XFS_IFORK_Q(ip)) {
+		/*
+		 * The only error from xfs_iflush_fork is on the data fork.
+		 */
+		(void) xfs_iflush_fork(ip, dip, iip, XFS_ATTR_FORK, bp);
+	}
+	xfs_inobp_check(mp, bp);
+
+	/*
+	 * We've recorded everything logged in the inode, so we'd
+	 * like to clear the ilf_fields bits so we don't log and
+	 * flush things unnecessarily.  However, we can't stop
+	 * logging all this information until the data we've copied
+	 * into the disk buffer is written to disk.  If we did we might
+	 * overwrite the copy of the inode in the log with all the
+	 * data after re-logging only part of it, and in the face of
+	 * a crash we wouldn't have all the data we need to recover.
+	 *
+	 * What we do is move the bits to the ili_last_fields field.
+	 * When logging the inode, these bits are moved back to the
+	 * ilf_fields field.  In the xfs_iflush_done() routine we
+	 * clear ili_last_fields, since we know that the information
+	 * those bits represent is permanently on disk.  As long as
+	 * the flush completes before the inode is logged again, then
+	 * both ilf_fields and ili_last_fields will be cleared.
+	 *
+	 * We can play with the ilf_fields bits here, because the inode
+	 * lock must be held exclusively in order to set bits there
+	 * and the flush lock protects the ili_last_fields bits.
+	 * Set ili_logged so the flush done
+	 * routine can tell whether or not to look in the AIL.
+	 * Also, store the current LSN of the inode so that we can tell
+	 * whether the item has moved in the AIL from xfs_iflush_done().
+	 * In order to read the lsn we need the AIL lock, because
+	 * it is a 64 bit value that cannot be read atomically.
+	 */
+	if (iip != NULL && iip->ili_format.ilf_fields != 0) {
+		iip->ili_last_fields = iip->ili_format.ilf_fields;
+		iip->ili_format.ilf_fields = 0;
+		iip->ili_logged = 1;
+
+		ASSERT(sizeof(xfs_lsn_t) == 8);	/* don't lock if it shrinks */
+		AIL_LOCK(mp,s);
+		iip->ili_flush_lsn = iip->ili_item.li_lsn;
+		AIL_UNLOCK(mp, s);
+
+		/*
+		 * Attach the function xfs_iflush_done to the inode's
+		 * buffer.  This will remove the inode from the AIL
+		 * and unlock the inode's flush lock when the inode is
+		 * completely written to disk.
+		 */
+		xfs_buf_attach_iodone(bp, (void(*)(xfs_buf_t*,xfs_log_item_t*))
+				      xfs_iflush_done, (xfs_log_item_t *)iip);
+
+		ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
+		ASSERT(XFS_BUF_IODONE_FUNC(bp) != NULL);
+	} else {
+		/*
+		 * We're flushing an inode which is not in the AIL and has
+		 * not been logged but has i_update_core set.  For this
+		 * case we can use a B_DELWRI flush and immediately drop
+		 * the inode flush lock because we can avoid the whole
+		 * AIL state thing.  It's OK to drop the flush lock now,
+		 * because we've already locked the buffer and to do anything
+		 * you really need both.
+		 */
+		if (iip != NULL) {
+			ASSERT(iip->ili_logged == 0);
+			ASSERT(iip->ili_last_fields == 0);
+			ASSERT((iip->ili_item.li_flags & XFS_LI_IN_AIL) == 0);
+		}
+		xfs_ifunlock(ip);
+	}
+
+	return 0;
+
+corrupt_out:
+	return XFS_ERROR(EFSCORRUPTED);
+}
+
+
+/*
+ * Flush all inactive inodes in mp.  Return true if no user references
+ * were found, false otherwise.
+ */
+int
+xfs_iflush_all(
+	xfs_mount_t	*mp,
+	int		flag)
+{
+	int		busy;
+	int		done;
+	int		purged;
+	xfs_inode_t	*ip;
+	vmap_t		vmap;
+	vnode_t		*vp;
+
+	busy = done = 0;
+	while (!done) {
+		purged = 0;
+		XFS_MOUNT_ILOCK(mp);
+		ip = mp->m_inodes;
+		if (ip == NULL) {
+			break;
+		}
+		do {
+			/* Make sure we skip markers inserted by sync */
+			if (ip->i_mount == NULL) {
+				ip = ip->i_mnext;
+				continue;
+			}
+
+			/*
+			 * It's up to our caller to purge the root
+			 * and quota vnodes later.
+			 */
+			vp = XFS_ITOV_NULL(ip);
+
+			if (!vp) {
+				XFS_MOUNT_IUNLOCK(mp);
+				xfs_finish_reclaim(ip, 0, XFS_IFLUSH_ASYNC);
+				purged = 1;
+				break;
+			}
+
+			if (vn_count(vp) != 0) {
+				if (vn_count(vp) == 1 &&
+				    (ip == mp->m_rootip ||
+				     (mp->m_quotainfo &&
+				      (ip->i_ino == mp->m_sb.sb_uquotino ||
+				       ip->i_ino == mp->m_sb.sb_gquotino)))) {
+
+					ip = ip->i_mnext;
+					continue;
+				}
+				if (!(flag & XFS_FLUSH_ALL)) {
+					busy = 1;
+					done = 1;
+					break;
+				}
+				/*
+				 * Ignore busy inodes but continue flushing
+				 * others.
+				 */
+				ip = ip->i_mnext;
+				continue;
+			}
+			/*
+			 * Sample vp mapping while holding mp locked on MP
+			 * systems, so we don't purge a reclaimed or
+			 * nonexistent vnode.  We break from the loop
+			 * since we know that we modify
+			 * it by pulling ourselves from it in xfs_reclaim()
+			 * called via vn_purge() below.  Set ip to the next
+			 * entry in the list anyway so we'll know below
+			 * whether we reached the end or not.
+			 */
+			VMAP(vp, vmap);
+			XFS_MOUNT_IUNLOCK(mp);
+
+			vn_purge(vp, &vmap);
+
+			purged = 1;
+			break;
+		} while (ip != mp->m_inodes);
+		/*
+		 * We need to distinguish between when we exit the loop
+		 * after a purge and when we simply hit the end of the
+		 * list.  We can't use the (ip == mp->m_inodes) test,
+		 * because when we purge an inode at the start of the list
+		 * the next inode on the list becomes mp->m_inodes.  That
+		 * would cause such a test to bail out early.  The purged
+		 * variable tells us how we got out of the loop.
+		 */
+		if (!purged) {
+			done = 1;
+		}
+	}
+	XFS_MOUNT_IUNLOCK(mp);
+	return !busy;
+}
+
+
+/*
+ * xfs_iaccess: check accessibility of inode for mode.
+ */
+int
+xfs_iaccess(
+	xfs_inode_t	*ip,
+	mode_t		mode,
+	cred_t		*cr)
+{
+	int		error;
+	mode_t		orgmode = mode;
+	struct inode	*inode = LINVFS_GET_IP(XFS_ITOV(ip));
+
+	if (mode & S_IWUSR) {
+		umode_t		imode = inode->i_mode;
+
+		if (IS_RDONLY(inode) &&
+		    (S_ISREG(imode) || S_ISDIR(imode) || S_ISLNK(imode)))
+			return XFS_ERROR(EROFS);
+
+		if (IS_IMMUTABLE(inode))
+			return XFS_ERROR(EACCES);
+	}
+
+	/*
+	 * If there's an Access Control List it's used instead of
+	 * the mode bits.
+	 */
+	if ((error = _ACL_XFS_IACCESS(ip, mode, cr)) != -1)
+		return error ? XFS_ERROR(error) : 0;
+
+	if (current_fsuid(cr) != ip->i_d.di_uid) {
+		mode >>= 3;
+		if (!in_group_p((gid_t)ip->i_d.di_gid))
+			mode >>= 3;
+	}
+
+	/*
+	 * If the DACs are ok we don't need any capability check.
+	 */
+	if ((ip->i_d.di_mode & mode) == mode)
+		return 0;
+	/*
+	 * Read/write DACs are always overridable.
+	 * Executable DACs are overridable if at least one exec bit is set.
+	 */
+	if (!(orgmode & S_IXUSR) ||
+	    (inode->i_mode & S_IXUGO) || S_ISDIR(inode->i_mode))
+		if (capable_cred(cr, CAP_DAC_OVERRIDE))
+			return 0;
+
+	if ((orgmode == S_IRUSR) ||
+	    (S_ISDIR(inode->i_mode) && (!(orgmode & S_IWUSR)))) {
+		if (capable_cred(cr, CAP_DAC_READ_SEARCH))
+			return 0;
+#ifdef	NOISE
+		cmn_err(CE_NOTE, "Ick: mode=%o, orgmode=%o", mode, orgmode);
+#endif	/* NOISE */
+		return XFS_ERROR(EACCES);
+	}
+	return XFS_ERROR(EACCES);
+}
+
+/*
+ * xfs_iroundup: round up argument to next power of two
+ */
+uint
+xfs_iroundup(
+	uint	v)
+{
+	int i;
+	uint m;
+
+	if ((v & (v - 1)) == 0)
+		return v;
+	ASSERT((v & 0x80000000) == 0);
+	if ((v & (v + 1)) == 0)
+		return v + 1;
+	for (i = 0, m = 1; i < 31; i++, m <<= 1) {
+		if (v & m)
+			continue;
+		v |= m;
+		if ((v & (v + 1)) == 0)
+			return v + 1;
+	}
+	ASSERT(0);
+	return( 0 );
+}
+
+/*
+ * Change the requested timestamp in the given inode.
+ * We don't lock across timestamp updates, and we don't log them but
+ * we do record the fact that there is dirty information in core.
+ *
+ * NOTE -- callers MUST combine XFS_ICHGTIME_MOD or XFS_ICHGTIME_CHG
+ *		with XFS_ICHGTIME_ACC to be sure that access time
+ *		update will take.  Calling first with XFS_ICHGTIME_ACC
+ *		and then XFS_ICHGTIME_MOD may fail to modify the access
+ *		timestamp if the filesystem is mounted noacctm.
+ */
+void
+xfs_ichgtime(xfs_inode_t *ip,
+	     int flags)
+{
+	timespec_t	tv;
+	vnode_t		*vp = XFS_ITOV(ip);
+	struct inode	*inode = LINVFS_GET_IP(vp);
+
+	/*
+	 * We're not supposed to change timestamps in readonly-mounted
+	 * filesystems.  Throw it away if anyone asks us.
+	 */
+	if (unlikely(vp->v_vfsp->vfs_flag & VFS_RDONLY))
+		return;
+
+	/*
+	 * Don't update access timestamps on reads if mounted "noatime"
+	 * Throw it away if anyone asks us.
+	 */
+	if ((ip->i_mount->m_flags & XFS_MOUNT_NOATIME || IS_NOATIME(inode)) &&
+	    ((flags & (XFS_ICHGTIME_ACC|XFS_ICHGTIME_MOD|XFS_ICHGTIME_CHG))
+			== XFS_ICHGTIME_ACC))
+		return;
+
+	nanotime(&tv);
+	if (flags & XFS_ICHGTIME_MOD) {
+		VN_MTIMESET(vp, &tv);
+		ip->i_d.di_mtime.t_sec = (__int32_t)tv.tv_sec;
+		ip->i_d.di_mtime.t_nsec = (__int32_t)tv.tv_nsec;
+	}
+	if (flags & XFS_ICHGTIME_ACC) {
+		VN_ATIMESET(vp, &tv);
+		ip->i_d.di_atime.t_sec = (__int32_t)tv.tv_sec;
+		ip->i_d.di_atime.t_nsec = (__int32_t)tv.tv_nsec;
+	}
+	if (flags & XFS_ICHGTIME_CHG) {
+		VN_CTIMESET(vp, &tv);
+		ip->i_d.di_ctime.t_sec = (__int32_t)tv.tv_sec;
+		ip->i_d.di_ctime.t_nsec = (__int32_t)tv.tv_nsec;
+	}
+
+	/*
+	 * We update the i_update_core field _after_ changing
+	 * the timestamps in order to coordinate properly with
+	 * xfs_iflush() so that we don't lose timestamp updates.
+	 * This keeps us from having to hold the inode lock
+	 * while doing this.  We use the SYNCHRONIZE macro to
+	 * ensure that the compiler does not reorder the update
+	 * of i_update_core above the timestamp updates above.
+	 */
+	SYNCHRONIZE();
+	ip->i_update_core = 1;
+	if (!(inode->i_state & I_LOCK))
+		mark_inode_dirty_sync(inode);
+}
+
+#ifdef XFS_ILOCK_TRACE
+ktrace_t	*xfs_ilock_trace_buf;
+
+void
+xfs_ilock_trace(xfs_inode_t *ip, int lock, unsigned int lockflags, inst_t *ra)
+{
+	ktrace_enter(ip->i_lock_trace,
+		     (void *)ip,
+		     (void *)(unsigned long)lock, /* 1 = LOCK, 3=UNLOCK, etc */
+		     (void *)(unsigned long)lockflags, /* XFS_ILOCK_EXCL etc */
+		     (void *)ra,		/* caller of ilock */
+		     (void *)(unsigned long)current_cpu(),
+		     (void *)(unsigned long)current_pid(),
+		     NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL);
+}
+#endif
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
new file mode 100644
index 00000000000000..97bd24ba4198f2
--- /dev/null
+++ b/fs/xfs/xfs_inode.h
@@ -0,0 +1,562 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef	__XFS_INODE_H__
+#define	__XFS_INODE_H__
+
+/*
+ * File incore extent information, present for each of data & attr forks.
+ */
+#define	XFS_INLINE_EXTS	2
+#define	XFS_INLINE_DATA	32
+typedef struct xfs_ifork {
+	int			if_bytes;	/* bytes in if_u1 */
+	int			if_real_bytes;	/* bytes allocated in if_u1 */
+	xfs_bmbt_block_t	*if_broot;	/* file's incore btree root */
+	short			if_broot_bytes;	/* bytes allocated for root */
+	unsigned char		if_flags;	/* per-fork flags */
+	unsigned char		if_ext_max;	/* max # of extent records */
+	xfs_extnum_t		if_lastex;	/* last if_extents used */
+	union {
+		xfs_bmbt_rec_t	*if_extents;	/* linear map file exts */
+		char		*if_data;	/* inline file data */
+	} if_u1;
+	union {
+		xfs_bmbt_rec_t	if_inline_ext[XFS_INLINE_EXTS];
+						/* very small file extents */
+		char		if_inline_data[XFS_INLINE_DATA];
+						/* very small file data */
+		xfs_dev_t	if_rdev;	/* dev number if special */
+		uuid_t		if_uuid;	/* mount point value */
+	} if_u2;
+} xfs_ifork_t;
+
+/*
+ * Flags for xfs_ichgtime().
+ */
+#define	XFS_ICHGTIME_MOD	0x1	/* data fork modification timestamp */
+#define	XFS_ICHGTIME_ACC	0x2	/* data fork access timestamp */
+#define	XFS_ICHGTIME_CHG	0x4	/* inode field change timestamp */
+
+/*
+ * Per-fork incore inode flags.
+ */
+#define	XFS_IFINLINE	0x0001	/* Inline data is read in */
+#define	XFS_IFEXTENTS	0x0002	/* All extent pointers are read in */
+#define	XFS_IFBROOT	0x0004	/* i_broot points to the bmap b-tree root */
+
+/*
+ * Flags for xfs_imap() and xfs_dilocate().
+ */
+#define	XFS_IMAP_LOOKUP		0x1
+
+/*
+ * Maximum number of extent pointers in if_u1.if_extents.
+ */
+#define	XFS_MAX_INCORE_EXTENTS	32768
+
+
+#ifdef __KERNEL__
+struct bhv_desc;
+struct cred;
+struct ktrace;
+struct vnode;
+struct xfs_buf;
+struct xfs_bmap_free;
+struct xfs_bmbt_irec;
+struct xfs_bmbt_block;
+struct xfs_inode;
+struct xfs_inode_log_item;
+struct xfs_mount;
+struct xfs_trans;
+struct xfs_dquot;
+
+#if defined(XFS_ILOCK_TRACE)
+#define XFS_ILOCK_KTRACE_SIZE	32
+extern ktrace_t *xfs_ilock_trace_buf;
+extern void xfs_ilock_trace(struct xfs_inode *, int, unsigned int, inst_t *);
+#else
+#define	xfs_ilock_trace(i,n,f,ra)
+#endif
+
+/*
+ * This structure is used to communicate which extents of a file
+ * were holes when a write started from xfs_write_file() to
+ * xfs_strat_read().  This is necessary so that we can know which
+ * blocks need to be zeroed when they are read in in xfs_strat_read()
+ * if they weren\'t allocated when the buffer given to xfs_strat_read()
+ * was mapped.
+ *
+ * We keep a list of these attached to the inode.  The list is
+ * protected by the inode lock and the fact that the io lock is
+ * held exclusively by writers.
+ */
+typedef struct xfs_gap {
+	struct xfs_gap	*xg_next;
+	xfs_fileoff_t	xg_offset_fsb;
+	xfs_extlen_t	xg_count_fsb;
+} xfs_gap_t;
+
+typedef struct dm_attrs_s {
+	__uint32_t	da_dmevmask;	/* DMIG event mask */
+	__uint16_t	da_dmstate;	/* DMIG state info */
+	__uint16_t	da_pad;		/* DMIG extra padding */
+} dm_attrs_t;
+
+typedef struct xfs_iocore {
+	void			*io_obj;	/* pointer to container
+						 * inode or dcxvn structure */
+	struct xfs_mount	*io_mount;	/* fs mount struct ptr */
+#ifdef DEBUG
+	mrlock_t		*io_lock;	/* inode IO lock */
+	mrlock_t		*io_iolock;	/* inode IO lock */
+#endif
+
+	/* I/O state */
+	xfs_fsize_t		io_new_size;	/* sz when write completes */
+
+	/* Miscellaneous state. */
+	unsigned int		io_flags;	/* IO related flags */
+
+	/* DMAPI state */
+	dm_attrs_t		io_dmattrs;
+
+} xfs_iocore_t;
+
+#define        io_dmevmask     io_dmattrs.da_dmevmask
+#define        io_dmstate      io_dmattrs.da_dmstate
+
+#define XFS_IO_INODE(io)	((xfs_inode_t *) ((io)->io_obj))
+#define XFS_IO_DCXVN(io)	((dcxvn_t *) ((io)->io_obj))
+
+/*
+ * Flags in the flags field
+ */
+
+#define XFS_IOCORE_RT		0x1
+
+/*
+ * xfs_iocore prototypes
+ */
+
+extern void xfs_iocore_inode_init(struct xfs_inode *);
+extern void xfs_iocore_inode_reinit(struct xfs_inode *);
+
+
+/*
+ * This is the type used in the xfs inode hash table.
+ * An array of these is allocated for each mounted
+ * file system to hash the inodes for that file system.
+ */
+typedef struct xfs_ihash {
+	struct xfs_inode	*ih_next;
+	rwlock_t		ih_lock;
+	uint			ih_version;
+} xfs_ihash_t;
+
+/*
+ * Inode hashing and hash bucket locking.
+ */
+#define XFS_BUCKETS(mp) (37*(mp)->m_sb.sb_agcount-1)
+#define XFS_IHASH(mp,ino) ((mp)->m_ihash + (((uint)(ino)) % (mp)->m_ihsize))
+
+/*
+ * This is the xfs inode cluster hash.  This hash is used by xfs_iflush to
+ * find inodes that share a cluster and can be flushed to disk at the same
+ * time.
+ */
+
+typedef struct xfs_chashlist {
+	struct xfs_chashlist	*chl_next;
+	struct xfs_inode	*chl_ip;
+	xfs_daddr_t		chl_blkno;	/* starting block number of
+						 * the cluster */
+	struct xfs_buf		*chl_buf;	/* the inode buffer */
+} xfs_chashlist_t;
+
+typedef struct xfs_chash {
+	xfs_chashlist_t		*ch_list;
+	lock_t			ch_lock;
+} xfs_chash_t;
+
+
+/*
+ * This is the xfs in-core inode structure.
+ * Most of the on-disk inode is embedded in the i_d field.
+ *
+ * The extent pointers/inline file space, however, are managed
+ * separately.  The memory for this information is pointed to by
+ * the if_u1 unions depending on the type of the data.
+ * This is used to linearize the array of extents for fast in-core
+ * access.  This is used until the file's number of extents
+ * surpasses XFS_MAX_INCORE_EXTENTS, at which point all extent pointers
+ * are accessed through the buffer cache.
+ *
+ * Other state kept in the in-core inode is used for identification,
+ * locking, transactional updating, etc of the inode.
+ *
+ * Generally, we do not want to hold the i_rlock while holding the
+ * i_ilock. Hierarchy is i_iolock followed by i_rlock.
+ *
+ * xfs_iptr_t contains all the inode fields upto and including the
+ * i_mnext and i_mprev fields, it is used as a marker in the inode
+ * chain off the mount structure by xfs_sync calls.
+ */
+
+typedef struct {
+	struct xfs_ihash	*ip_hash;	/* pointer to hash header */
+	struct xfs_inode	*ip_next;	/* inode hash link forw */
+	struct xfs_inode	*ip_mnext;	/* next inode in mount list */
+	struct xfs_inode	*ip_mprev;	/* ptr to prev inode */
+	struct xfs_inode	**ip_prevp;	/* ptr to prev i_next */
+	struct xfs_mount	*ip_mount;	/* fs mount struct ptr */
+} xfs_iptr_t;
+
+typedef struct xfs_inode {
+	/* Inode linking and identification information. */
+	struct xfs_ihash	*i_hash;	/* pointer to hash header */
+	struct xfs_inode	*i_next;	/* inode hash link forw */
+	struct xfs_inode	*i_mnext;	/* next inode in mount list */
+	struct xfs_inode	*i_mprev;	/* ptr to prev inode */
+	struct xfs_inode	**i_prevp;	/* ptr to prev i_next */
+	struct xfs_mount	*i_mount;	/* fs mount struct ptr */
+	struct list_head	i_reclaim;	/* reclaim list */
+	struct bhv_desc		i_bhv_desc;	/* inode behavior descriptor*/
+	struct xfs_dquot	*i_udquot;	/* user dquot */
+	struct xfs_dquot	*i_gdquot;	/* group dquot */
+
+	/* Inode location stuff */
+	xfs_ino_t		i_ino;		/* inode number (agno/agino)*/
+	xfs_daddr_t		i_blkno;	/* blkno of inode buffer */
+	ushort			i_len;		/* len of inode buffer */
+	ushort			i_boffset;	/* off of inode in buffer */
+
+	/* Extent information. */
+	xfs_ifork_t		*i_afp;		/* attribute fork pointer */
+	xfs_ifork_t		i_df;		/* data fork */
+
+	/* Transaction and locking information. */
+	struct xfs_trans	*i_transp;	/* ptr to owning transaction*/
+	struct xfs_inode_log_item *i_itemp;	/* logging information */
+	mrlock_t		i_lock;		/* inode lock */
+	mrlock_t		i_iolock;	/* inode IO lock */
+	sema_t			i_flock;	/* inode flush lock */
+	atomic_t		i_pincount;	/* inode pin count */
+	wait_queue_head_t	i_ipin_wait;	/* inode pinning wait queue */
+#ifdef HAVE_REFCACHE
+	struct xfs_inode	**i_refcache;	/* ptr to entry in ref cache */
+	struct xfs_inode	*i_release;	/* inode to unref */
+#endif
+	/* I/O state */
+	xfs_iocore_t		i_iocore;	/* I/O core */
+
+	/* Miscellaneous state. */
+	unsigned short		i_flags;	/* see defined flags below */
+	unsigned char		i_update_core;	/* timestamps/size is dirty */
+	unsigned char		i_update_size;	/* di_size field is dirty */
+	unsigned int		i_gen;		/* generation count */
+	unsigned int		i_delayed_blks;	/* count of delay alloc blks */
+
+	xfs_dinode_core_t	i_d;		/* most of ondisk inode */
+	xfs_chashlist_t		*i_chash;	/* cluster hash list header */
+	struct xfs_inode	*i_cnext;	/* cluster hash link forward */
+	struct xfs_inode	*i_cprev;	/* cluster hash link backward */
+
+	/* Trace buffers per inode. */
+#ifdef XFS_BMAP_TRACE
+	struct ktrace		*i_xtrace;	/* inode extent list trace */
+#endif
+#ifdef XFS_BMBT_TRACE
+	struct ktrace		*i_btrace;	/* inode bmap btree trace */
+#endif
+#ifdef XFS_RW_TRACE
+	struct ktrace		*i_rwtrace;	/* inode read/write trace */
+#endif
+#ifdef XFS_ILOCK_TRACE
+	struct ktrace		*i_lock_trace;	/* inode lock/unlock trace */
+#endif
+#ifdef XFS_DIR2_TRACE
+	struct ktrace		*i_dir_trace;	/* inode directory trace */
+#endif
+} xfs_inode_t;
+
+#endif	/* __KERNEL__ */
+
+
+/*
+ * Fork handling.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IFORK_PTR)
+xfs_ifork_t *xfs_ifork_ptr(xfs_inode_t *ip, int w);
+#define	XFS_IFORK_PTR(ip,w)		xfs_ifork_ptr(ip,w)
+#else
+#define	XFS_IFORK_PTR(ip,w)   ((w) == XFS_DATA_FORK ? &(ip)->i_df : (ip)->i_afp)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IFORK_Q)
+int xfs_ifork_q(xfs_inode_t *ip);
+#define	XFS_IFORK_Q(ip)			xfs_ifork_q(ip)
+#else
+#define	XFS_IFORK_Q(ip)			XFS_CFORK_Q(&(ip)->i_d)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IFORK_DSIZE)
+int xfs_ifork_dsize(xfs_inode_t *ip);
+#define	XFS_IFORK_DSIZE(ip)		xfs_ifork_dsize(ip)
+#else
+#define	XFS_IFORK_DSIZE(ip)		XFS_CFORK_DSIZE(&ip->i_d, ip->i_mount)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IFORK_ASIZE)
+int xfs_ifork_asize(xfs_inode_t *ip);
+#define	XFS_IFORK_ASIZE(ip)		xfs_ifork_asize(ip)
+#else
+#define	XFS_IFORK_ASIZE(ip)		XFS_CFORK_ASIZE(&ip->i_d, ip->i_mount)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IFORK_SIZE)
+int xfs_ifork_size(xfs_inode_t *ip, int w);
+#define	XFS_IFORK_SIZE(ip,w)		xfs_ifork_size(ip,w)
+#else
+#define	XFS_IFORK_SIZE(ip,w)		XFS_CFORK_SIZE(&ip->i_d, ip->i_mount, w)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IFORK_FORMAT)
+int xfs_ifork_format(xfs_inode_t *ip, int w);
+#define	XFS_IFORK_FORMAT(ip,w)		xfs_ifork_format(ip,w)
+#else
+#define	XFS_IFORK_FORMAT(ip,w)		XFS_CFORK_FORMAT(&ip->i_d, w)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IFORK_FMT_SET)
+void xfs_ifork_fmt_set(xfs_inode_t *ip, int w, int n);
+#define	XFS_IFORK_FMT_SET(ip,w,n)	xfs_ifork_fmt_set(ip,w,n)
+#else
+#define	XFS_IFORK_FMT_SET(ip,w,n)	XFS_CFORK_FMT_SET(&ip->i_d, w, n)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IFORK_NEXTENTS)
+int xfs_ifork_nextents(xfs_inode_t *ip, int w);
+#define	XFS_IFORK_NEXTENTS(ip,w)	xfs_ifork_nextents(ip,w)
+#else
+#define	XFS_IFORK_NEXTENTS(ip,w)	XFS_CFORK_NEXTENTS(&ip->i_d, w)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IFORK_NEXT_SET)
+void xfs_ifork_next_set(xfs_inode_t *ip, int w, int n);
+#define	XFS_IFORK_NEXT_SET(ip,w,n)	xfs_ifork_next_set(ip,w,n)
+#else
+#define	XFS_IFORK_NEXT_SET(ip,w,n)	XFS_CFORK_NEXT_SET(&ip->i_d, w, n)
+#endif
+
+
+#ifdef __KERNEL__
+
+/*
+ * In-core inode flags.
+ */
+#define XFS_IGRIO	0x0001  /* inode used for guaranteed rate i/o */
+#define XFS_IUIOSZ	0x0002  /* inode i/o sizes have been explicitly set */
+#define XFS_IQUIESCE    0x0004  /* we have started quiescing for this inode */
+#define XFS_IRECLAIM    0x0008  /* we have started reclaiming this inode    */
+#define XFS_ISTALE	0x0010	/* inode has been staled */
+#define XFS_IRECLAIMABLE 0x0020 /* inode can be reclaimed */
+#define XFS_INEW	0x0040
+
+/*
+ * Flags for inode locking.
+ */
+#define	XFS_IOLOCK_EXCL		0x001
+#define	XFS_IOLOCK_SHARED	0x002
+#define	XFS_ILOCK_EXCL		0x004
+#define	XFS_ILOCK_SHARED	0x008
+#define	XFS_IUNLOCK_NONOTIFY	0x010
+#define XFS_EXTENT_TOKEN_RD	0x040
+#define XFS_SIZE_TOKEN_RD	0x080
+#define XFS_EXTSIZE_RD		(XFS_EXTENT_TOKEN_RD|XFS_SIZE_TOKEN_RD)
+#define XFS_WILLLEND		0x100	/* Always acquire tokens for lending */
+#define XFS_EXTENT_TOKEN_WR	(XFS_EXTENT_TOKEN_RD | XFS_WILLLEND)
+#define XFS_SIZE_TOKEN_WR       (XFS_SIZE_TOKEN_RD | XFS_WILLLEND)
+#define XFS_EXTSIZE_WR		(XFS_EXTSIZE_RD | XFS_WILLLEND)
+
+
+#define XFS_LOCK_MASK	\
+	(XFS_IOLOCK_EXCL | XFS_IOLOCK_SHARED | XFS_ILOCK_EXCL | \
+	 XFS_ILOCK_SHARED | XFS_EXTENT_TOKEN_RD | XFS_SIZE_TOKEN_RD | \
+	 XFS_WILLLEND)
+
+/*
+ * Flags for xfs_iflush()
+ */
+#define	XFS_IFLUSH_DELWRI_ELSE_SYNC	1
+#define	XFS_IFLUSH_DELWRI_ELSE_ASYNC	2
+#define	XFS_IFLUSH_SYNC			3
+#define	XFS_IFLUSH_ASYNC		4
+#define	XFS_IFLUSH_DELWRI		5
+
+/*
+ * Flags for xfs_iflush_all.
+ */
+#define	XFS_FLUSH_ALL		0x1
+
+/*
+ * Flags for xfs_itruncate_start().
+ */
+#define	XFS_ITRUNC_DEFINITE	0x1
+#define	XFS_ITRUNC_MAYBE	0x2
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ITOV)
+struct vnode *xfs_itov(xfs_inode_t *ip);
+#define	XFS_ITOV(ip)		xfs_itov(ip)
+#else
+#define	XFS_ITOV(ip)		BHV_TO_VNODE(XFS_ITOBHV(ip))
+#endif
+#define	XFS_ITOV_NULL(ip)	BHV_TO_VNODE_NULL(XFS_ITOBHV(ip))
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ITOBHV)
+struct bhv_desc *xfs_itobhv(xfs_inode_t *ip);
+#define	XFS_ITOBHV(ip)		xfs_itobhv(ip)
+#else
+#define	XFS_ITOBHV(ip)		((struct bhv_desc *)(&((ip)->i_bhv_desc)))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BHVTOI)
+xfs_inode_t *xfs_bhvtoi(struct bhv_desc *bhvp);
+#define	XFS_BHVTOI(bhvp)	xfs_bhvtoi(bhvp)
+#else
+#define	XFS_BHVTOI(bhvp)	\
+	((xfs_inode_t *)((char *)(bhvp) - \
+			 (char *)&(((xfs_inode_t *)0)->i_bhv_desc)))
+#endif
+
+#define BHV_IS_XFS(bdp)		(BHV_OPS(bdp) == &xfs_vnodeops)
+
+/*
+ * Pick the inode cluster hash bucket
+ * (m_chash is the same size as m_ihash)
+ */
+#define XFS_CHASH(mp,blk) ((mp)->m_chash + (((uint)blk) % (mp)->m_chsize))
+
+/*
+ * For multiple groups support: if S_ISGID bit is set in the parent
+ * directory, group of new file is set to that of the parent, and
+ * new subdirectory gets S_ISGID bit from parent.
+ */
+#define XFS_INHERIT_GID(pip, vfsp)	\
+	(((vfsp)->vfs_flag & VFS_GRPID) || ((pip)->i_d.di_mode & S_ISGID))
+
+/*
+ * xfs_iget.c prototypes.
+ */
+
+#define IGET_CREATE	1
+
+void		xfs_ihash_init(struct xfs_mount *);
+void		xfs_ihash_free(struct xfs_mount *);
+void		xfs_chash_init(struct xfs_mount *);
+void		xfs_chash_free(struct xfs_mount *);
+xfs_inode_t	*xfs_inode_incore(struct xfs_mount *, xfs_ino_t,
+				  struct xfs_trans *);
+void            xfs_inode_lock_init(xfs_inode_t *, struct vnode *);
+int		xfs_iget(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
+			 uint, uint, xfs_inode_t **, xfs_daddr_t);
+void		xfs_iput(xfs_inode_t *, uint);
+void		xfs_iput_new(xfs_inode_t *, uint);
+void		xfs_ilock(xfs_inode_t *, uint);
+int		xfs_ilock_nowait(xfs_inode_t *, uint);
+void		xfs_iunlock(xfs_inode_t *, uint);
+void		xfs_ilock_demote(xfs_inode_t *, uint);
+void		xfs_iflock(xfs_inode_t *);
+int		xfs_iflock_nowait(xfs_inode_t *);
+uint		xfs_ilock_map_shared(xfs_inode_t *);
+void		xfs_iunlock_map_shared(xfs_inode_t *, uint);
+void		xfs_ifunlock(xfs_inode_t *);
+void		xfs_ireclaim(xfs_inode_t *);
+int		xfs_finish_reclaim(xfs_inode_t *, int, int);
+int		xfs_finish_reclaim_all(struct xfs_mount *, int);
+
+/*
+ * xfs_inode.c prototypes.
+ */
+int		xfs_inotobp(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
+			    xfs_dinode_t **, struct xfs_buf **, int *);
+int		xfs_itobp(struct xfs_mount *, struct xfs_trans *,
+			  xfs_inode_t *, xfs_dinode_t **, struct xfs_buf **,
+			  xfs_daddr_t);
+int		xfs_iread(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
+			  xfs_inode_t **, xfs_daddr_t);
+int		xfs_iread_extents(struct xfs_trans *, xfs_inode_t *, int);
+int		xfs_ialloc(struct xfs_trans *, xfs_inode_t *, mode_t, nlink_t,
+			   xfs_dev_t, struct cred *, xfs_prid_t, int,
+			   struct xfs_buf **, boolean_t *, xfs_inode_t **);
+void		xfs_xlate_dinode_core(xfs_caddr_t, struct xfs_dinode_core *,
+					int, xfs_arch_t);
+uint		xfs_dic2xflags(struct xfs_dinode_core *, xfs_arch_t);
+int		xfs_ifree(struct xfs_trans *, xfs_inode_t *,
+			   struct xfs_bmap_free *);
+void		xfs_itruncate_start(xfs_inode_t *, uint, xfs_fsize_t);
+int		xfs_itruncate_finish(struct xfs_trans **, xfs_inode_t *,
+				     xfs_fsize_t, int, int);
+int		xfs_iunlink(struct xfs_trans *, xfs_inode_t *);
+int		xfs_igrow_start(xfs_inode_t *, xfs_fsize_t, struct cred *);
+void		xfs_igrow_finish(struct xfs_trans *, xfs_inode_t *,
+				 xfs_fsize_t, int);
+
+void		xfs_idestroy_fork(xfs_inode_t *, int);
+void		xfs_idestroy(xfs_inode_t *);
+void		xfs_idata_realloc(xfs_inode_t *, int, int);
+void		xfs_iextract(xfs_inode_t *);
+void		xfs_iext_realloc(xfs_inode_t *, int, int);
+void		xfs_iroot_realloc(xfs_inode_t *, int, int);
+void		xfs_ipin(xfs_inode_t *);
+void		xfs_iunpin(xfs_inode_t *);
+int		xfs_iextents_copy(xfs_inode_t *, xfs_bmbt_rec_t *, int);
+int		xfs_iflush(xfs_inode_t *, uint);
+int		xfs_iflush_all(struct xfs_mount *, int);
+int		xfs_iaccess(xfs_inode_t *, mode_t, cred_t *);
+uint		xfs_iroundup(uint);
+void		xfs_ichgtime(xfs_inode_t *, int);
+xfs_fsize_t	xfs_file_last_byte(xfs_inode_t *);
+void		xfs_lock_inodes(xfs_inode_t **, int, int, uint);
+
+#define xfs_ipincount(ip)	((unsigned int) atomic_read(&ip->i_pincount))
+
+#ifdef DEBUG
+void		xfs_isize_check(struct xfs_mount *, xfs_inode_t *, xfs_fsize_t);
+#else	/* DEBUG */
+#define xfs_isize_check(mp, ip, isize)
+#endif	/* DEBUG */
+
+#if defined(DEBUG)
+void		xfs_inobp_check(struct xfs_mount *, struct xfs_buf *);
+#else
+#define	xfs_inobp_check(mp, bp)
+#endif /* DEBUG */
+
+extern struct kmem_zone	*xfs_chashlist_zone;
+extern struct kmem_zone	*xfs_ifork_zone;
+extern struct kmem_zone	*xfs_inode_zone;
+extern struct kmem_zone	*xfs_ili_zone;
+extern struct vnodeops	xfs_vnodeops;
+
+#endif	/* __KERNEL__ */
+
+#endif	/* __XFS_INODE_H__ */
diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
new file mode 100644
index 00000000000000..2900528c62da29
--- /dev/null
+++ b/fs/xfs/xfs_inode_item.c
@@ -0,0 +1,1092 @@
+/*
+ * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+/*
+ * This file contains the implementation of the xfs_inode_log_item.
+ * It contains the item operations used to manipulate the inode log
+ * items as well as utility routines used by the inode specific
+ * transaction routines.
+ */
+#include "xfs.h"
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_buf_item.h"
+#include "xfs_sb.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_trans_priv.h"
+#include "xfs_ag.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode_item.h"
+#include "xfs_inode.h"
+#include "xfs_rw.h"
+
+
+kmem_zone_t	*xfs_ili_zone;		/* inode log item zone */
+
+/*
+ * This returns the number of iovecs needed to log the given inode item.
+ *
+ * We need one iovec for the inode log format structure, one for the
+ * inode core, and possibly one for the inode data/extents/b-tree root
+ * and one for the inode attribute data/extents/b-tree root.
+ */
+STATIC uint
+xfs_inode_item_size(
+	xfs_inode_log_item_t	*iip)
+{
+	uint		nvecs;
+	xfs_inode_t	*ip;
+
+	ip = iip->ili_inode;
+	nvecs = 2;
+
+	/*
+	 * Only log the data/extents/b-tree root if there is something
+	 * left to log.
+	 */
+	iip->ili_format.ilf_fields |= XFS_ILOG_CORE;
+
+	switch (ip->i_d.di_format) {
+	case XFS_DINODE_FMT_EXTENTS:
+		iip->ili_format.ilf_fields &=
+			~(XFS_ILOG_DDATA | XFS_ILOG_DBROOT |
+			  XFS_ILOG_DEV | XFS_ILOG_UUID);
+		if ((iip->ili_format.ilf_fields & XFS_ILOG_DEXT) &&
+		    (ip->i_d.di_nextents > 0) &&
+		    (ip->i_df.if_bytes > 0)) {
+			ASSERT(ip->i_df.if_u1.if_extents != NULL);
+			nvecs++;
+		} else {
+			iip->ili_format.ilf_fields &= ~XFS_ILOG_DEXT;
+		}
+		break;
+
+	case XFS_DINODE_FMT_BTREE:
+		ASSERT(ip->i_df.if_ext_max ==
+		       XFS_IFORK_DSIZE(ip) / (uint)sizeof(xfs_bmbt_rec_t));
+		iip->ili_format.ilf_fields &=
+			~(XFS_ILOG_DDATA | XFS_ILOG_DEXT |
+			  XFS_ILOG_DEV | XFS_ILOG_UUID);
+		if ((iip->ili_format.ilf_fields & XFS_ILOG_DBROOT) &&
+		    (ip->i_df.if_broot_bytes > 0)) {
+			ASSERT(ip->i_df.if_broot != NULL);
+			nvecs++;
+		} else {
+			ASSERT(!(iip->ili_format.ilf_fields &
+				 XFS_ILOG_DBROOT));
+#ifdef XFS_TRANS_DEBUG
+			if (iip->ili_root_size > 0) {
+				ASSERT(iip->ili_root_size ==
+				       ip->i_df.if_broot_bytes);
+				ASSERT(memcmp(iip->ili_orig_root,
+					    ip->i_df.if_broot,
+					    iip->ili_root_size) == 0);
+			} else {
+				ASSERT(ip->i_df.if_broot_bytes == 0);
+			}
+#endif
+			iip->ili_format.ilf_fields &= ~XFS_ILOG_DBROOT;
+		}
+		break;
+
+	case XFS_DINODE_FMT_LOCAL:
+		iip->ili_format.ilf_fields &=
+			~(XFS_ILOG_DEXT | XFS_ILOG_DBROOT |
+			  XFS_ILOG_DEV | XFS_ILOG_UUID);
+		if ((iip->ili_format.ilf_fields & XFS_ILOG_DDATA) &&
+		    (ip->i_df.if_bytes > 0)) {
+			ASSERT(ip->i_df.if_u1.if_data != NULL);
+			ASSERT(ip->i_d.di_size > 0);
+			nvecs++;
+		} else {
+			iip->ili_format.ilf_fields &= ~XFS_ILOG_DDATA;
+		}
+		break;
+
+	case XFS_DINODE_FMT_DEV:
+		iip->ili_format.ilf_fields &=
+			~(XFS_ILOG_DDATA | XFS_ILOG_DBROOT |
+			  XFS_ILOG_DEXT | XFS_ILOG_UUID);
+		break;
+
+	case XFS_DINODE_FMT_UUID:
+		iip->ili_format.ilf_fields &=
+			~(XFS_ILOG_DDATA | XFS_ILOG_DBROOT |
+			  XFS_ILOG_DEXT | XFS_ILOG_DEV);
+		break;
+
+	default:
+		ASSERT(0);
+		break;
+	}
+
+	/*
+	 * If there are no attributes associated with this file,
+	 * then there cannot be anything more to log.
+	 * Clear all attribute-related log flags.
+	 */
+	if (!XFS_IFORK_Q(ip)) {
+		iip->ili_format.ilf_fields &=
+			~(XFS_ILOG_ADATA | XFS_ILOG_ABROOT | XFS_ILOG_AEXT);
+		return nvecs;
+	}
+
+	/*
+	 * Log any necessary attribute data.
+	 */
+	switch (ip->i_d.di_aformat) {
+	case XFS_DINODE_FMT_EXTENTS:
+		iip->ili_format.ilf_fields &=
+			~(XFS_ILOG_ADATA | XFS_ILOG_ABROOT);
+		if ((iip->ili_format.ilf_fields & XFS_ILOG_AEXT) &&
+		    (ip->i_d.di_anextents > 0) &&
+		    (ip->i_afp->if_bytes > 0)) {
+			ASSERT(ip->i_afp->if_u1.if_extents != NULL);
+			nvecs++;
+		} else {
+			iip->ili_format.ilf_fields &= ~XFS_ILOG_AEXT;
+		}
+		break;
+
+	case XFS_DINODE_FMT_BTREE:
+		iip->ili_format.ilf_fields &=
+			~(XFS_ILOG_ADATA | XFS_ILOG_AEXT);
+		if ((iip->ili_format.ilf_fields & XFS_ILOG_ABROOT) &&
+		    (ip->i_afp->if_broot_bytes > 0)) {
+			ASSERT(ip->i_afp->if_broot != NULL);
+			nvecs++;
+		} else {
+			iip->ili_format.ilf_fields &= ~XFS_ILOG_ABROOT;
+		}
+		break;
+
+	case XFS_DINODE_FMT_LOCAL:
+		iip->ili_format.ilf_fields &=
+			~(XFS_ILOG_AEXT | XFS_ILOG_ABROOT);
+		if ((iip->ili_format.ilf_fields & XFS_ILOG_ADATA) &&
+		    (ip->i_afp->if_bytes > 0)) {
+			ASSERT(ip->i_afp->if_u1.if_data != NULL);
+			nvecs++;
+		} else {
+			iip->ili_format.ilf_fields &= ~XFS_ILOG_ADATA;
+		}
+		break;
+
+	default:
+		ASSERT(0);
+		break;
+	}
+
+	return nvecs;
+}
+
+/*
+ * This is called to fill in the vector of log iovecs for the
+ * given inode log item.  It fills the first item with an inode
+ * log format structure, the second with the on-disk inode structure,
+ * and a possible third and/or fourth with the inode data/extents/b-tree
+ * root and inode attributes data/extents/b-tree root.
+ */
+STATIC void
+xfs_inode_item_format(
+	xfs_inode_log_item_t	*iip,
+	xfs_log_iovec_t		*log_vector)
+{
+	uint			nvecs;
+	xfs_log_iovec_t		*vecp;
+	xfs_inode_t		*ip;
+	size_t			data_bytes;
+	xfs_bmbt_rec_t		*ext_buffer;
+	int			nrecs;
+	xfs_mount_t		*mp;
+
+	ip = iip->ili_inode;
+	vecp = log_vector;
+
+	vecp->i_addr = (xfs_caddr_t)&iip->ili_format;
+	vecp->i_len  = sizeof(xfs_inode_log_format_t);
+	vecp++;
+	nvecs	     = 1;
+
+	/*
+	 * Clear i_update_core if the timestamps (or any other
+	 * non-transactional modification) need flushing/logging
+	 * and we're about to log them with the rest of the core.
+	 *
+	 * This is the same logic as xfs_iflush() but this code can't
+	 * run at the same time as xfs_iflush because we're in commit
+	 * processing here and so we have the inode lock held in
+	 * exclusive mode.  Although it doesn't really matter
+	 * for the timestamps if both routines were to grab the
+	 * timestamps or not.  That would be ok.
+	 *
+	 * We clear i_update_core before copying out the data.
+	 * This is for coordination with our timestamp updates
+	 * that don't hold the inode lock. They will always
+	 * update the timestamps BEFORE setting i_update_core,
+	 * so if we clear i_update_core after they set it we
+	 * are guaranteed to see their updates to the timestamps
+	 * either here.  Likewise, if they set it after we clear it
+	 * here, we'll see it either on the next commit of this
+	 * inode or the next time the inode gets flushed via
+	 * xfs_iflush().  This depends on strongly ordered memory
+	 * semantics, but we have that.  We use the SYNCHRONIZE
+	 * macro to make sure that the compiler does not reorder
+	 * the i_update_core access below the data copy below.
+	 */
+	if (ip->i_update_core)  {
+		ip->i_update_core = 0;
+		SYNCHRONIZE();
+	}
+
+	/*
+	 * We don't have to worry about re-ordering here because
+	 * the update_size field is protected by the inode lock
+	 * and we have that held in exclusive mode.
+	 */
+	if (ip->i_update_size)
+		ip->i_update_size = 0;
+
+	vecp->i_addr = (xfs_caddr_t)&ip->i_d;
+	vecp->i_len  = sizeof(xfs_dinode_core_t);
+	vecp++;
+	nvecs++;
+	iip->ili_format.ilf_fields |= XFS_ILOG_CORE;
+
+	/*
+	 * If this is really an old format inode, then we need to
+	 * log it as such.  This means that we have to copy the link
+	 * count from the new field to the old.  We don't have to worry
+	 * about the new fields, because nothing trusts them as long as
+	 * the old inode version number is there.  If the superblock already
+	 * has a new version number, then we don't bother converting back.
+	 */
+	mp = ip->i_mount;
+	ASSERT(ip->i_d.di_version == XFS_DINODE_VERSION_1 ||
+	       XFS_SB_VERSION_HASNLINK(&mp->m_sb));
+	if (ip->i_d.di_version == XFS_DINODE_VERSION_1) {
+		if (!XFS_SB_VERSION_HASNLINK(&mp->m_sb)) {
+			/*
+			 * Convert it back.
+			 */
+			ASSERT(ip->i_d.di_nlink <= XFS_MAXLINK_1);
+			ip->i_d.di_onlink = ip->i_d.di_nlink;
+		} else {
+			/*
+			 * The superblock version has already been bumped,
+			 * so just make the conversion to the new inode
+			 * format permanent.
+			 */
+			ip->i_d.di_version = XFS_DINODE_VERSION_2;
+			ip->i_d.di_onlink = 0;
+			memset(&(ip->i_d.di_pad[0]), 0, sizeof(ip->i_d.di_pad));
+		}
+	}
+
+	switch (ip->i_d.di_format) {
+	case XFS_DINODE_FMT_EXTENTS:
+		ASSERT(!(iip->ili_format.ilf_fields &
+			 (XFS_ILOG_DDATA | XFS_ILOG_DBROOT |
+			  XFS_ILOG_DEV | XFS_ILOG_UUID)));
+		if (iip->ili_format.ilf_fields & XFS_ILOG_DEXT) {
+			ASSERT(ip->i_df.if_bytes > 0);
+			ASSERT(ip->i_df.if_u1.if_extents != NULL);
+			ASSERT(ip->i_d.di_nextents > 0);
+			ASSERT(iip->ili_extents_buf == NULL);
+			nrecs = ip->i_df.if_bytes /
+				(uint)sizeof(xfs_bmbt_rec_t);
+			ASSERT(nrecs > 0);
+#if ARCH_CONVERT == ARCH_NOCONVERT
+			if (nrecs == ip->i_d.di_nextents) {
+				/*
+				 * There are no delayed allocation
+				 * extents, so just point to the
+				 * real extents array.
+				 */
+				vecp->i_addr =
+					(char *)(ip->i_df.if_u1.if_extents);
+				vecp->i_len = ip->i_df.if_bytes;
+			} else
+#endif
+			{
+				/*
+				 * There are delayed allocation extents
+				 * in the inode, or we need to convert
+				 * the extents to on disk format.
+				 * Use xfs_iextents_copy()
+				 * to copy only the real extents into
+				 * a separate buffer.  We'll free the
+				 * buffer in the unlock routine.
+				 */
+				ext_buffer = kmem_alloc(ip->i_df.if_bytes,
+					KM_SLEEP);
+				iip->ili_extents_buf = ext_buffer;
+				vecp->i_addr = (xfs_caddr_t)ext_buffer;
+				vecp->i_len = xfs_iextents_copy(ip, ext_buffer,
+						XFS_DATA_FORK);
+			}
+			ASSERT(vecp->i_len <= ip->i_df.if_bytes);
+			iip->ili_format.ilf_dsize = vecp->i_len;
+			vecp++;
+			nvecs++;
+		}
+		break;
+
+	case XFS_DINODE_FMT_BTREE:
+		ASSERT(!(iip->ili_format.ilf_fields &
+			 (XFS_ILOG_DDATA | XFS_ILOG_DEXT |
+			  XFS_ILOG_DEV | XFS_ILOG_UUID)));
+		if (iip->ili_format.ilf_fields & XFS_ILOG_DBROOT) {
+			ASSERT(ip->i_df.if_broot_bytes > 0);
+			ASSERT(ip->i_df.if_broot != NULL);
+			vecp->i_addr = (xfs_caddr_t)ip->i_df.if_broot;
+			vecp->i_len = ip->i_df.if_broot_bytes;
+			vecp++;
+			nvecs++;
+			iip->ili_format.ilf_dsize = ip->i_df.if_broot_bytes;
+		}
+		break;
+
+	case XFS_DINODE_FMT_LOCAL:
+		ASSERT(!(iip->ili_format.ilf_fields &
+			 (XFS_ILOG_DBROOT | XFS_ILOG_DEXT |
+			  XFS_ILOG_DEV | XFS_ILOG_UUID)));
+		if (iip->ili_format.ilf_fields & XFS_ILOG_DDATA) {
+			ASSERT(ip->i_df.if_bytes > 0);
+			ASSERT(ip->i_df.if_u1.if_data != NULL);
+			ASSERT(ip->i_d.di_size > 0);
+
+			vecp->i_addr = (xfs_caddr_t)ip->i_df.if_u1.if_data;
+			/*
+			 * Round i_bytes up to a word boundary.
+			 * The underlying memory is guaranteed to
+			 * to be there by xfs_idata_realloc().
+			 */
+			data_bytes = roundup(ip->i_df.if_bytes, 4);
+			ASSERT((ip->i_df.if_real_bytes == 0) ||
+			       (ip->i_df.if_real_bytes == data_bytes));
+			vecp->i_len = (int)data_bytes;
+			vecp++;
+			nvecs++;
+			iip->ili_format.ilf_dsize = (unsigned)data_bytes;
+		}
+		break;
+
+	case XFS_DINODE_FMT_DEV:
+		ASSERT(!(iip->ili_format.ilf_fields &
+			 (XFS_ILOG_DBROOT | XFS_ILOG_DEXT |
+			  XFS_ILOG_DDATA | XFS_ILOG_UUID)));
+		if (iip->ili_format.ilf_fields & XFS_ILOG_DEV) {
+			iip->ili_format.ilf_u.ilfu_rdev =
+				ip->i_df.if_u2.if_rdev;
+		}
+		break;
+
+	case XFS_DINODE_FMT_UUID:
+		ASSERT(!(iip->ili_format.ilf_fields &
+			 (XFS_ILOG_DBROOT | XFS_ILOG_DEXT |
+			  XFS_ILOG_DDATA | XFS_ILOG_DEV)));
+		if (iip->ili_format.ilf_fields & XFS_ILOG_UUID) {
+			iip->ili_format.ilf_u.ilfu_uuid =
+				ip->i_df.if_u2.if_uuid;
+		}
+		break;
+
+	default:
+		ASSERT(0);
+		break;
+	}
+
+	/*
+	 * If there are no attributes associated with the file,
+	 * then we're done.
+	 * Assert that no attribute-related log flags are set.
+	 */
+	if (!XFS_IFORK_Q(ip)) {
+		ASSERT(nvecs == iip->ili_item.li_desc->lid_size);
+		iip->ili_format.ilf_size = nvecs;
+		ASSERT(!(iip->ili_format.ilf_fields &
+			 (XFS_ILOG_ADATA | XFS_ILOG_ABROOT | XFS_ILOG_AEXT)));
+		return;
+	}
+
+	switch (ip->i_d.di_aformat) {
+	case XFS_DINODE_FMT_EXTENTS:
+		ASSERT(!(iip->ili_format.ilf_fields &
+			 (XFS_ILOG_ADATA | XFS_ILOG_ABROOT)));
+		if (iip->ili_format.ilf_fields & XFS_ILOG_AEXT) {
+			ASSERT(ip->i_afp->if_bytes > 0);
+			ASSERT(ip->i_afp->if_u1.if_extents != NULL);
+			ASSERT(ip->i_d.di_anextents > 0);
+#ifdef DEBUG
+			nrecs = ip->i_afp->if_bytes /
+				(uint)sizeof(xfs_bmbt_rec_t);
+#endif
+			ASSERT(nrecs > 0);
+			ASSERT(nrecs == ip->i_d.di_anextents);
+#if ARCH_CONVERT == ARCH_NOCONVERT
+			/*
+			 * There are not delayed allocation extents
+			 * for attributes, so just point at the array.
+			 */
+			vecp->i_addr = (char *)(ip->i_afp->if_u1.if_extents);
+			vecp->i_len = ip->i_afp->if_bytes;
+#else
+			ASSERT(iip->ili_aextents_buf == NULL);
+			/*
+			 * Need to endian flip before logging
+			 */
+			ext_buffer = kmem_alloc(ip->i_afp->if_bytes,
+				KM_SLEEP);
+			iip->ili_aextents_buf = ext_buffer;
+			vecp->i_addr = (xfs_caddr_t)ext_buffer;
+			vecp->i_len = xfs_iextents_copy(ip, ext_buffer,
+					XFS_ATTR_FORK);
+#endif
+			iip->ili_format.ilf_asize = vecp->i_len;
+			vecp++;
+			nvecs++;
+		}
+		break;
+
+	case XFS_DINODE_FMT_BTREE:
+		ASSERT(!(iip->ili_format.ilf_fields &
+			 (XFS_ILOG_ADATA | XFS_ILOG_AEXT)));
+		if (iip->ili_format.ilf_fields & XFS_ILOG_ABROOT) {
+			ASSERT(ip->i_afp->if_broot_bytes > 0);
+			ASSERT(ip->i_afp->if_broot != NULL);
+			vecp->i_addr = (xfs_caddr_t)ip->i_afp->if_broot;
+			vecp->i_len = ip->i_afp->if_broot_bytes;
+			vecp++;
+			nvecs++;
+			iip->ili_format.ilf_asize = ip->i_afp->if_broot_bytes;
+		}
+		break;
+
+	case XFS_DINODE_FMT_LOCAL:
+		ASSERT(!(iip->ili_format.ilf_fields &
+			 (XFS_ILOG_ABROOT | XFS_ILOG_AEXT)));
+		if (iip->ili_format.ilf_fields & XFS_ILOG_ADATA) {
+			ASSERT(ip->i_afp->if_bytes > 0);
+			ASSERT(ip->i_afp->if_u1.if_data != NULL);
+
+			vecp->i_addr = (xfs_caddr_t)ip->i_afp->if_u1.if_data;
+			/*
+			 * Round i_bytes up to a word boundary.
+			 * The underlying memory is guaranteed to
+			 * to be there by xfs_idata_realloc().
+			 */
+			data_bytes = roundup(ip->i_afp->if_bytes, 4);
+			ASSERT((ip->i_afp->if_real_bytes == 0) ||
+			       (ip->i_afp->if_real_bytes == data_bytes));
+			vecp->i_len = (int)data_bytes;
+			vecp++;
+			nvecs++;
+			iip->ili_format.ilf_asize = (unsigned)data_bytes;
+		}
+		break;
+
+	default:
+		ASSERT(0);
+		break;
+	}
+
+	ASSERT(nvecs == iip->ili_item.li_desc->lid_size);
+	iip->ili_format.ilf_size = nvecs;
+}
+
+
+/*
+ * This is called to pin the inode associated with the inode log
+ * item in memory so it cannot be written out.  Do this by calling
+ * xfs_ipin() to bump the pin count in the inode while holding the
+ * inode pin lock.
+ */
+STATIC void
+xfs_inode_item_pin(
+	xfs_inode_log_item_t	*iip)
+{
+	ASSERT(ismrlocked(&(iip->ili_inode->i_lock), MR_UPDATE));
+	xfs_ipin(iip->ili_inode);
+}
+
+
+/*
+ * This is called to unpin the inode associated with the inode log
+ * item which was previously pinned with a call to xfs_inode_item_pin().
+ * Just call xfs_iunpin() on the inode to do this.
+ */
+/* ARGSUSED */
+STATIC void
+xfs_inode_item_unpin(
+	xfs_inode_log_item_t	*iip,
+	int			stale)
+{
+	xfs_iunpin(iip->ili_inode);
+}
+
+/* ARGSUSED */
+STATIC void
+xfs_inode_item_unpin_remove(
+	xfs_inode_log_item_t	*iip,
+	xfs_trans_t		*tp)
+{
+	xfs_iunpin(iip->ili_inode);
+}
+
+/*
+ * This is called to attempt to lock the inode associated with this
+ * inode log item, in preparation for the push routine which does the actual
+ * iflush.  Don't sleep on the inode lock or the flush lock.
+ *
+ * If the flush lock is already held, indicating that the inode has
+ * been or is in the process of being flushed, then (ideally) we'd like to
+ * see if the inode's buffer is still incore, and if so give it a nudge.
+ * We delay doing so until the pushbuf routine, though, to avoid holding
+ * the AIL lock across a call to the blackhole which is the buffercache.
+ * Also we don't want to sleep in any device strategy routines, which can happen
+ * if we do the subsequent bawrite in here.
+ */
+STATIC uint
+xfs_inode_item_trylock(
+	xfs_inode_log_item_t	*iip)
+{
+	register xfs_inode_t	*ip;
+
+	ip = iip->ili_inode;
+
+	if (xfs_ipincount(ip) > 0) {
+		return XFS_ITEM_PINNED;
+	}
+
+	if (!xfs_ilock_nowait(ip, XFS_ILOCK_SHARED)) {
+		return XFS_ITEM_LOCKED;
+	}
+
+	if (!xfs_iflock_nowait(ip)) {
+		/*
+		 * If someone else isn't already trying to push the inode
+		 * buffer, we get to do it.
+		 */
+		if (iip->ili_pushbuf_flag == 0) {
+			iip->ili_pushbuf_flag = 1;
+#ifdef DEBUG
+			iip->ili_push_owner = get_thread_id();
+#endif
+			/*
+			 * Inode is left locked in shared mode.
+			 * Pushbuf routine gets to unlock it.
+			 */
+			return XFS_ITEM_PUSHBUF;
+		} else {
+			/*
+			 * We hold the AIL_LOCK, so we must specify the
+			 * NONOTIFY flag so that we won't double trip.
+			 */
+			xfs_iunlock(ip, XFS_ILOCK_SHARED|XFS_IUNLOCK_NONOTIFY);
+			return XFS_ITEM_FLUSHING;
+		}
+		/* NOTREACHED */
+	}
+
+	/* Stale items should force out the iclog */
+	if (ip->i_flags & XFS_ISTALE) {
+		xfs_ifunlock(ip);
+		xfs_iunlock(ip, XFS_ILOCK_SHARED|XFS_IUNLOCK_NONOTIFY);
+		return XFS_ITEM_PINNED;
+	}
+
+#ifdef DEBUG
+	if (!XFS_FORCED_SHUTDOWN(ip->i_mount)) {
+		ASSERT(iip->ili_format.ilf_fields != 0);
+		ASSERT(iip->ili_logged == 0);
+		ASSERT(iip->ili_item.li_flags & XFS_LI_IN_AIL);
+	}
+#endif
+	return XFS_ITEM_SUCCESS;
+}
+
+/*
+ * Unlock the inode associated with the inode log item.
+ * Clear the fields of the inode and inode log item that
+ * are specific to the current transaction.  If the
+ * hold flags is set, do not unlock the inode.
+ */
+STATIC void
+xfs_inode_item_unlock(
+	xfs_inode_log_item_t	*iip)
+{
+	uint		hold;
+	uint		iolocked;
+	uint		lock_flags;
+	xfs_inode_t	*ip;
+
+	ASSERT(iip != NULL);
+	ASSERT(iip->ili_inode->i_itemp != NULL);
+	ASSERT(ismrlocked(&(iip->ili_inode->i_lock), MR_UPDATE));
+	ASSERT((!(iip->ili_inode->i_itemp->ili_flags &
+		  XFS_ILI_IOLOCKED_EXCL)) ||
+	       ismrlocked(&(iip->ili_inode->i_iolock), MR_UPDATE));
+	ASSERT((!(iip->ili_inode->i_itemp->ili_flags &
+		  XFS_ILI_IOLOCKED_SHARED)) ||
+	       ismrlocked(&(iip->ili_inode->i_iolock), MR_ACCESS));
+	/*
+	 * Clear the transaction pointer in the inode.
+	 */
+	ip = iip->ili_inode;
+	ip->i_transp = NULL;
+
+	/*
+	 * If the inode needed a separate buffer with which to log
+	 * its extents, then free it now.
+	 */
+	if (iip->ili_extents_buf != NULL) {
+		ASSERT(ip->i_d.di_format == XFS_DINODE_FMT_EXTENTS);
+		ASSERT(ip->i_d.di_nextents > 0);
+		ASSERT(iip->ili_format.ilf_fields & XFS_ILOG_DEXT);
+		ASSERT(ip->i_df.if_bytes > 0);
+		kmem_free(iip->ili_extents_buf, ip->i_df.if_bytes);
+		iip->ili_extents_buf = NULL;
+	}
+	if (iip->ili_aextents_buf != NULL) {
+		ASSERT(ip->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS);
+		ASSERT(ip->i_d.di_anextents > 0);
+		ASSERT(iip->ili_format.ilf_fields & XFS_ILOG_AEXT);
+		ASSERT(ip->i_afp->if_bytes > 0);
+		kmem_free(iip->ili_aextents_buf, ip->i_afp->if_bytes);
+		iip->ili_aextents_buf = NULL;
+	}
+
+	/*
+	 * Figure out if we should unlock the inode or not.
+	 */
+	hold = iip->ili_flags & XFS_ILI_HOLD;
+
+	/*
+	 * Before clearing out the flags, remember whether we
+	 * are holding the inode's IO lock.
+	 */
+	iolocked = iip->ili_flags & XFS_ILI_IOLOCKED_ANY;
+
+	/*
+	 * Clear out the fields of the inode log item particular
+	 * to the current transaction.
+	 */
+	iip->ili_ilock_recur = 0;
+	iip->ili_iolock_recur = 0;
+	iip->ili_flags = 0;
+
+	/*
+	 * Unlock the inode if XFS_ILI_HOLD was not set.
+	 */
+	if (!hold) {
+		lock_flags = XFS_ILOCK_EXCL;
+		if (iolocked & XFS_ILI_IOLOCKED_EXCL) {
+			lock_flags |= XFS_IOLOCK_EXCL;
+		} else if (iolocked & XFS_ILI_IOLOCKED_SHARED) {
+			lock_flags |= XFS_IOLOCK_SHARED;
+		}
+		xfs_iput(iip->ili_inode, lock_flags);
+	}
+}
+
+/*
+ * This is called to find out where the oldest active copy of the
+ * inode log item in the on disk log resides now that the last log
+ * write of it completed at the given lsn.  Since we always re-log
+ * all dirty data in an inode, the latest copy in the on disk log
+ * is the only one that matters.  Therefore, simply return the
+ * given lsn.
+ */
+/*ARGSUSED*/
+STATIC xfs_lsn_t
+xfs_inode_item_committed(
+	xfs_inode_log_item_t	*iip,
+	xfs_lsn_t		lsn)
+{
+	return (lsn);
+}
+
+/*
+ * The transaction with the inode locked has aborted.  The inode
+ * must not be dirty within the transaction (unless we're forcibly
+ * shutting down).  We simply unlock just as if the transaction
+ * had been cancelled.
+ */
+STATIC void
+xfs_inode_item_abort(
+	xfs_inode_log_item_t	*iip)
+{
+	xfs_inode_item_unlock(iip);
+	return;
+}
+
+
+/*
+ * This gets called by xfs_trans_push_ail(), when IOP_TRYLOCK
+ * failed to get the inode flush lock but did get the inode locked SHARED.
+ * Here we're trying to see if the inode buffer is incore, and if so whether it's
+ * marked delayed write. If that's the case, we'll initiate a bawrite on that
+ * buffer to expedite the process.
+ *
+ * We aren't holding the AIL_LOCK (or the flush lock) when this gets called,
+ * so it is inherently race-y.
+ */
+STATIC void
+xfs_inode_item_pushbuf(
+	xfs_inode_log_item_t	*iip)
+{
+	xfs_inode_t	*ip;
+	xfs_mount_t	*mp;
+	xfs_buf_t	*bp;
+	uint		dopush;
+
+	ip = iip->ili_inode;
+
+	ASSERT(ismrlocked(&(ip->i_lock), MR_ACCESS));
+
+	/*
+	 * The ili_pushbuf_flag keeps others from
+	 * trying to duplicate our effort.
+	 */
+	ASSERT(iip->ili_pushbuf_flag != 0);
+	ASSERT(iip->ili_push_owner == get_thread_id());
+
+	/*
+	 * If flushlock isn't locked anymore, chances are that the
+	 * inode flush completed and the inode was taken off the AIL.
+	 * So, just get out.
+	 */
+	if ((valusema(&(ip->i_flock)) > 0)  ||
+	    ((iip->ili_item.li_flags & XFS_LI_IN_AIL) == 0)) {
+		iip->ili_pushbuf_flag = 0;
+		xfs_iunlock(ip, XFS_ILOCK_SHARED);
+		return;
+	}
+
+	mp = ip->i_mount;
+	bp = xfs_incore(mp->m_ddev_targp, iip->ili_format.ilf_blkno,
+		    iip->ili_format.ilf_len, XFS_INCORE_TRYLOCK);
+
+	if (bp != NULL) {
+		if (XFS_BUF_ISDELAYWRITE(bp)) {
+			/*
+			 * We were racing with iflush because we don't hold
+			 * the AIL_LOCK or the flush lock. However, at this point,
+			 * we have the buffer, and we know that it's dirty.
+			 * So, it's possible that iflush raced with us, and
+			 * this item is already taken off the AIL.
+			 * If not, we can flush it async.
+			 */
+			dopush = ((iip->ili_item.li_flags & XFS_LI_IN_AIL) &&
+				  (valusema(&(ip->i_flock)) <= 0));
+			iip->ili_pushbuf_flag = 0;
+			xfs_iunlock(ip, XFS_ILOCK_SHARED);
+			xfs_buftrace("INODE ITEM PUSH", bp);
+			if (XFS_BUF_ISPINNED(bp)) {
+				xfs_log_force(mp, (xfs_lsn_t)0,
+					      XFS_LOG_FORCE);
+			}
+			if (dopush) {
+				xfs_bawrite(mp, bp);
+			} else {
+				xfs_buf_relse(bp);
+			}
+		} else {
+			iip->ili_pushbuf_flag = 0;
+			xfs_iunlock(ip, XFS_ILOCK_SHARED);
+			xfs_buf_relse(bp);
+		}
+		return;
+	}
+	/*
+	 * We have to be careful about resetting pushbuf flag too early (above).
+	 * Even though in theory we can do it as soon as we have the buflock,
+	 * we don't want others to be doing work needlessly. They'll come to
+	 * this function thinking that pushing the buffer is their
+	 * responsibility only to find that the buffer is still locked by
+	 * another doing the same thing
+	 */
+	iip->ili_pushbuf_flag = 0;
+	xfs_iunlock(ip, XFS_ILOCK_SHARED);
+	return;
+}
+
+
+/*
+ * This is called to asynchronously write the inode associated with this
+ * inode log item out to disk. The inode will already have been locked by
+ * a successful call to xfs_inode_item_trylock().
+ */
+STATIC void
+xfs_inode_item_push(
+	xfs_inode_log_item_t	*iip)
+{
+	xfs_inode_t	*ip;
+
+	ip = iip->ili_inode;
+
+	ASSERT(ismrlocked(&(ip->i_lock), MR_ACCESS));
+	ASSERT(valusema(&(ip->i_flock)) <= 0);
+	/*
+	 * Since we were able to lock the inode's flush lock and
+	 * we found it on the AIL, the inode must be dirty.  This
+	 * is because the inode is removed from the AIL while still
+	 * holding the flush lock in xfs_iflush_done().  Thus, if
+	 * we found it in the AIL and were able to obtain the flush
+	 * lock without sleeping, then there must not have been
+	 * anyone in the process of flushing the inode.
+	 */
+	ASSERT(XFS_FORCED_SHUTDOWN(ip->i_mount) ||
+	       iip->ili_format.ilf_fields != 0);
+
+	/*
+	 * Write out the inode.  The completion routine ('iflush_done') will
+	 * pull it from the AIL, mark it clean, unlock the flush lock.
+	 */
+	(void) xfs_iflush(ip, XFS_IFLUSH_ASYNC);
+	xfs_iunlock(ip, XFS_ILOCK_SHARED);
+
+	return;
+}
+
+/*
+ * XXX rcc - this one really has to do something.  Probably needs
+ * to stamp in a new field in the incore inode.
+ */
+/* ARGSUSED */
+STATIC void
+xfs_inode_item_committing(
+	xfs_inode_log_item_t	*iip,
+	xfs_lsn_t		lsn)
+{
+	iip->ili_last_lsn = lsn;
+	return;
+}
+
+/*
+ * This is the ops vector shared by all buf log items.
+ */
+struct xfs_item_ops xfs_inode_item_ops = {
+	.iop_size	= (uint(*)(xfs_log_item_t*))xfs_inode_item_size,
+	.iop_format	= (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
+					xfs_inode_item_format,
+	.iop_pin	= (void(*)(xfs_log_item_t*))xfs_inode_item_pin,
+	.iop_unpin	= (void(*)(xfs_log_item_t*, int))xfs_inode_item_unpin,
+	.iop_unpin_remove = (void(*)(xfs_log_item_t*, xfs_trans_t*))
+					xfs_inode_item_unpin_remove,
+	.iop_trylock	= (uint(*)(xfs_log_item_t*))xfs_inode_item_trylock,
+	.iop_unlock	= (void(*)(xfs_log_item_t*))xfs_inode_item_unlock,
+	.iop_committed	= (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
+					xfs_inode_item_committed,
+	.iop_push	= (void(*)(xfs_log_item_t*))xfs_inode_item_push,
+	.iop_abort	= (void(*)(xfs_log_item_t*))xfs_inode_item_abort,
+	.iop_pushbuf	= (void(*)(xfs_log_item_t*))xfs_inode_item_pushbuf,
+	.iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
+					xfs_inode_item_committing
+};
+
+
+/*
+ * Initialize the inode log item for a newly allocated (in-core) inode.
+ */
+void
+xfs_inode_item_init(
+	xfs_inode_t	*ip,
+	xfs_mount_t	*mp)
+{
+	xfs_inode_log_item_t	*iip;
+
+	ASSERT(ip->i_itemp == NULL);
+	iip = ip->i_itemp = kmem_zone_zalloc(xfs_ili_zone, KM_SLEEP);
+
+	iip->ili_item.li_type = XFS_LI_INODE;
+	iip->ili_item.li_ops = &xfs_inode_item_ops;
+	iip->ili_item.li_mountp = mp;
+	iip->ili_inode = ip;
+
+	/*
+	   We have zeroed memory. No need ...
+	   iip->ili_extents_buf = NULL;
+	   iip->ili_pushbuf_flag = 0;
+	 */
+
+	iip->ili_format.ilf_type = XFS_LI_INODE;
+	iip->ili_format.ilf_ino = ip->i_ino;
+	iip->ili_format.ilf_blkno = ip->i_blkno;
+	iip->ili_format.ilf_len = ip->i_len;
+	iip->ili_format.ilf_boffset = ip->i_boffset;
+}
+
+/*
+ * Free the inode log item and any memory hanging off of it.
+ */
+void
+xfs_inode_item_destroy(
+	xfs_inode_t	*ip)
+{
+#ifdef XFS_TRANS_DEBUG
+	if (ip->i_itemp->ili_root_size != 0) {
+		kmem_free(ip->i_itemp->ili_orig_root,
+			  ip->i_itemp->ili_root_size);
+	}
+#endif
+	kmem_zone_free(xfs_ili_zone, ip->i_itemp);
+}
+
+
+/*
+ * This is the inode flushing I/O completion routine.  It is called
+ * from interrupt level when the buffer containing the inode is
+ * flushed to disk.  It is responsible for removing the inode item
+ * from the AIL if it has not been re-logged, and unlocking the inode's
+ * flush lock.
+ */
+/*ARGSUSED*/
+void
+xfs_iflush_done(
+	xfs_buf_t		*bp,
+	xfs_inode_log_item_t	*iip)
+{
+	xfs_inode_t	*ip;
+	SPLDECL(s);
+
+	ip = iip->ili_inode;
+
+	/*
+	 * We only want to pull the item from the AIL if it is
+	 * actually there and its location in the log has not
+	 * changed since we started the flush.  Thus, we only bother
+	 * if the ili_logged flag is set and the inode's lsn has not
+	 * changed.  First we check the lsn outside
+	 * the lock since it's cheaper, and then we recheck while
+	 * holding the lock before removing the inode from the AIL.
+	 */
+	if (iip->ili_logged &&
+	    (iip->ili_item.li_lsn == iip->ili_flush_lsn)) {
+		AIL_LOCK(ip->i_mount, s);
+		if (iip->ili_item.li_lsn == iip->ili_flush_lsn) {
+			/*
+			 * xfs_trans_delete_ail() drops the AIL lock.
+			 */
+			xfs_trans_delete_ail(ip->i_mount,
+					     (xfs_log_item_t*)iip, s);
+		} else {
+			AIL_UNLOCK(ip->i_mount, s);
+		}
+	}
+
+	iip->ili_logged = 0;
+
+	/*
+	 * Clear the ili_last_fields bits now that we know that the
+	 * data corresponding to them is safely on disk.
+	 */
+	iip->ili_last_fields = 0;
+
+	/*
+	 * Release the inode's flush lock since we're done with it.
+	 */
+	xfs_ifunlock(ip);
+
+	return;
+}
+
+/*
+ * This is the inode flushing abort routine.  It is called
+ * from xfs_iflush when the filesystem is shutting down to clean
+ * up the inode state.
+ * It is responsible for removing the inode item
+ * from the AIL if it has not been re-logged, and unlocking the inode's
+ * flush lock.
+ */
+void
+xfs_iflush_abort(
+	xfs_inode_t		*ip)
+{
+	xfs_inode_log_item_t	*iip;
+	xfs_mount_t		*mp;
+	SPLDECL(s);
+
+	iip = ip->i_itemp;
+	mp = ip->i_mount;
+	if (iip) {
+		if (iip->ili_item.li_flags & XFS_LI_IN_AIL) {
+			AIL_LOCK(mp, s);
+			if (iip->ili_item.li_flags & XFS_LI_IN_AIL) {
+				/*
+				 * xfs_trans_delete_ail() drops the AIL lock.
+				 */
+				xfs_trans_delete_ail(mp, (xfs_log_item_t *)iip,
+					s);
+			} else
+				AIL_UNLOCK(mp, s);
+		}
+		iip->ili_logged = 0;
+		/*
+		 * Clear the ili_last_fields bits now that we know that the
+		 * data corresponding to them is safely on disk.
+		 */
+		iip->ili_last_fields = 0;
+		/*
+		 * Clear the inode logging fields so no more flushes are
+		 * attempted.
+		 */
+		iip->ili_format.ilf_fields = 0;
+	}
+	/*
+	 * Release the inode's flush lock since we're done with it.
+	 */
+	xfs_ifunlock(ip);
+}
+
+void
+xfs_istale_done(
+	xfs_buf_t		*bp,
+	xfs_inode_log_item_t	*iip)
+{
+	xfs_iflush_abort(iip->ili_inode);
+}
diff --git a/fs/xfs/xfs_inode_item.h b/fs/xfs/xfs_inode_item.h
new file mode 100644
index 00000000000000..d8775e0d62914e
--- /dev/null
+++ b/fs/xfs/xfs_inode_item.h
@@ -0,0 +1,197 @@
+/*
+ * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef	__XFS_INODE_ITEM_H__
+#define	__XFS_INODE_ITEM_H__
+
+/*
+ * This is the structure used to lay out an inode log item in the
+ * log.  The size of the inline data/extents/b-tree root to be logged
+ * (if any) is indicated in the ilf_dsize field.  Changes to this structure
+ * must be added on to the end.
+ *
+ * Convention for naming inode log item versions :  The current version
+ * is always named XFS_LI_INODE.  When an inode log item gets superseded,
+ * add the latest version of IRIX that will generate logs with that item
+ * to the version name.
+ *
+ * -Version 1 of this structure (XFS_LI_5_3_INODE) included up to the first
+ *	union (ilf_u) field.  This was released with IRIX 5.3-XFS.
+ * -Version 2 of this structure (XFS_LI_6_1_INODE) is currently the entire
+ *	structure.  This was released with IRIX 6.0.1-XFS and IRIX 6.1.
+ * -Version 3 of this structure (XFS_LI_INODE) is the same as version 2
+ *	so a new structure definition wasn't necessary.  However, we had
+ *	to add a new type because the inode cluster size changed from 4K
+ *	to 8K and the version number had to be rev'ved to keep older kernels
+ *	from trying to recover logs with the 8K buffers in them.  The logging
+ *	code can handle recovery on different-sized clusters now so hopefully
+ *	this'll be the last time we need to change the inode log item just
+ *	for a change in the inode cluster size.  This new version was
+ *	released with IRIX 6.2.
+ */
+typedef struct xfs_inode_log_format {
+	unsigned short		ilf_type;	/* inode log item type */
+	unsigned short		ilf_size;	/* size of this item */
+	uint			ilf_fields;	/* flags for fields logged */
+	ushort			ilf_asize;	/* size of attr d/ext/root */
+	ushort			ilf_dsize;	/* size of data/ext/root */
+	xfs_ino_t		ilf_ino;	/* inode number */
+	union {
+		xfs_dev_t	ilfu_rdev;	/* rdev value for dev inode*/
+		uuid_t		ilfu_uuid;	/* mount point value */
+	} ilf_u;
+	__int64_t		ilf_blkno;	/* blkno of inode buffer */
+	int			ilf_len;	/* len of inode buffer */
+	int			ilf_boffset;	/* off of inode in buffer */
+} xfs_inode_log_format_t;
+
+/* Initial version shipped with IRIX 5.3-XFS */
+typedef struct xfs_inode_log_format_v1 {
+	unsigned short		ilf_type;	/* inode log item type */
+	unsigned short		ilf_size;	/* size of this item */
+	uint			ilf_fields;	/* flags for fields logged */
+	uint			ilf_dsize;	/* size of data/ext/root */
+	xfs_ino_t		ilf_ino;	/* inode number */
+	union {
+		xfs_dev_t	ilfu_rdev;	/* rdev value for dev inode*/
+		uuid_t		ilfu_uuid;	/* mount point value */
+	} ilf_u;
+} xfs_inode_log_format_t_v1;
+
+/*
+ * Flags for xfs_trans_log_inode flags field.
+ */
+#define	XFS_ILOG_CORE	0x001	/* log standard inode fields */
+#define	XFS_ILOG_DDATA	0x002	/* log i_df.if_data */
+#define	XFS_ILOG_DEXT	0x004	/* log i_df.if_extents */
+#define	XFS_ILOG_DBROOT	0x008	/* log i_df.i_broot */
+#define	XFS_ILOG_DEV	0x010	/* log the dev field */
+#define	XFS_ILOG_UUID	0x020	/* log the uuid field */
+#define	XFS_ILOG_ADATA	0x040	/* log i_af.if_data */
+#define	XFS_ILOG_AEXT	0x080	/* log i_af.if_extents */
+#define	XFS_ILOG_ABROOT	0x100	/* log i_af.i_broot */
+
+#define	XFS_ILOG_NONCORE	(XFS_ILOG_DDATA | XFS_ILOG_DEXT | \
+				 XFS_ILOG_DBROOT | XFS_ILOG_DEV | \
+				 XFS_ILOG_UUID | XFS_ILOG_ADATA | \
+				 XFS_ILOG_AEXT | XFS_ILOG_ABROOT)
+
+#define	XFS_ILOG_DFORK		(XFS_ILOG_DDATA | XFS_ILOG_DEXT | \
+				 XFS_ILOG_DBROOT)
+
+#define	XFS_ILOG_AFORK		(XFS_ILOG_ADATA | XFS_ILOG_AEXT | \
+				 XFS_ILOG_ABROOT)
+
+#define	XFS_ILOG_ALL		(XFS_ILOG_CORE | XFS_ILOG_DDATA | \
+				 XFS_ILOG_DEXT | XFS_ILOG_DBROOT | \
+				 XFS_ILOG_DEV | XFS_ILOG_UUID | \
+				 XFS_ILOG_ADATA | XFS_ILOG_AEXT | \
+				 XFS_ILOG_ABROOT)
+
+#define	XFS_ILI_HOLD		0x1
+#define	XFS_ILI_IOLOCKED_EXCL	0x2
+#define	XFS_ILI_IOLOCKED_SHARED	0x4
+
+#define	XFS_ILI_IOLOCKED_ANY   (XFS_ILI_IOLOCKED_EXCL | XFS_ILI_IOLOCKED_SHARED)
+
+
+#ifdef __KERNEL__
+
+struct xfs_buf;
+struct xfs_bmbt_rec_64;
+struct xfs_inode;
+struct xfs_mount;
+
+
+typedef struct xfs_inode_log_item {
+	xfs_log_item_t		ili_item;	   /* common portion */
+	struct xfs_inode	*ili_inode;	   /* inode ptr */
+	xfs_lsn_t		ili_flush_lsn;	   /* lsn at last flush */
+	xfs_lsn_t		ili_last_lsn;	   /* lsn at last transaction */
+	unsigned short		ili_ilock_recur;   /* lock recursion count */
+	unsigned short		ili_iolock_recur;  /* lock recursion count */
+	unsigned short		ili_flags;	   /* misc flags */
+	unsigned short		ili_logged;	   /* flushed logged data */
+	unsigned int		ili_last_fields;   /* fields when flushed */
+	struct xfs_bmbt_rec_64	*ili_extents_buf;  /* array of logged
+						      data exts */
+	struct xfs_bmbt_rec_64	*ili_aextents_buf; /* array of logged
+						      attr exts */
+	unsigned int            ili_pushbuf_flag;  /* one bit used in push_ail */
+
+#ifdef DEBUG
+	uint64_t                ili_push_owner;    /* one who sets pushbuf_flag
+						      above gets to push the buf */
+#endif
+#ifdef XFS_TRANS_DEBUG
+	int			ili_root_size;
+	char			*ili_orig_root;
+#endif
+	xfs_inode_log_format_t	ili_format;	   /* logged structure */
+} xfs_inode_log_item_t;
+
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ILOG_FDATA)
+int xfs_ilog_fdata(int w);
+#define	XFS_ILOG_FDATA(w)	xfs_ilog_fdata(w)
+#else
+#define	XFS_ILOG_FDATA(w)	\
+	((w) == XFS_DATA_FORK ? XFS_ILOG_DDATA : XFS_ILOG_ADATA)
+#endif
+
+#endif	/* __KERNEL__ */
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ILOG_FBROOT)
+int xfs_ilog_fbroot(int w);
+#define	XFS_ILOG_FBROOT(w)	xfs_ilog_fbroot(w)
+#else
+#define	XFS_ILOG_FBROOT(w)	\
+	((w) == XFS_DATA_FORK ? XFS_ILOG_DBROOT : XFS_ILOG_ABROOT)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ILOG_FEXT)
+int xfs_ilog_fext(int w);
+#define	XFS_ILOG_FEXT(w)	xfs_ilog_fext(w)
+#else
+#define	XFS_ILOG_FEXT(w)	\
+	((w) == XFS_DATA_FORK ? XFS_ILOG_DEXT : XFS_ILOG_AEXT)
+#endif
+
+#ifdef __KERNEL__
+
+void	xfs_inode_item_init(struct xfs_inode *, struct xfs_mount *);
+void	xfs_inode_item_destroy(struct xfs_inode *);
+void	xfs_iflush_done(struct xfs_buf *, xfs_inode_log_item_t *);
+void	xfs_istale_done(struct xfs_buf *, xfs_inode_log_item_t *);
+void	xfs_iflush_abort(struct xfs_inode *);
+
+#endif	/* __KERNEL__ */
+
+#endif	/* __XFS_INODE_ITEM_H__ */
diff --git a/fs/xfs/xfs_inum.h b/fs/xfs/xfs_inum.h
new file mode 100644
index 00000000000000..a3af2d5a6eb7a5
--- /dev/null
+++ b/fs/xfs/xfs_inum.h
@@ -0,0 +1,173 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_INUM_H__
+#define	__XFS_INUM_H__
+
+/*
+ * Inode number format:
+ * low inopblog bits - offset in block
+ * next agblklog bits - block number in ag
+ * next agno_log bits - ag number
+ * high agno_log-agblklog-inopblog bits - 0
+ */
+
+typedef	__uint32_t	xfs_agino_t;	/* within allocation grp inode number */
+
+/*
+ * Useful inode bits for this kernel.
+ * Used in some places where having 64-bits in the 32-bit kernels
+ * costs too much.
+ */
+#if XFS_BIG_INUMS
+typedef	xfs_ino_t	xfs_intino_t;
+#else
+typedef	__uint32_t	xfs_intino_t;
+#endif
+
+#define	NULLFSINO	((xfs_ino_t)-1)
+#define	NULLAGINO	((xfs_agino_t)-1)
+
+struct xfs_mount;
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_INO_MASK)
+__uint32_t xfs_ino_mask(int k);
+#define	XFS_INO_MASK(k)			xfs_ino_mask(k)
+#else
+#define	XFS_INO_MASK(k)	((__uint32_t)((1ULL << (k)) - 1))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_INO_OFFSET_BITS)
+int xfs_ino_offset_bits(struct xfs_mount *mp);
+#define	XFS_INO_OFFSET_BITS(mp)		xfs_ino_offset_bits(mp)
+#else
+#define	XFS_INO_OFFSET_BITS(mp)	((mp)->m_sb.sb_inopblog)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_INO_AGBNO_BITS)
+int xfs_ino_agbno_bits(struct xfs_mount *mp);
+#define	XFS_INO_AGBNO_BITS(mp)		xfs_ino_agbno_bits(mp)
+#else
+#define	XFS_INO_AGBNO_BITS(mp)	((mp)->m_sb.sb_agblklog)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_INO_AGINO_BITS)
+int xfs_ino_agino_bits(struct xfs_mount *mp);
+#define	XFS_INO_AGINO_BITS(mp)		xfs_ino_agino_bits(mp)
+#else
+#define	XFS_INO_AGINO_BITS(mp)		((mp)->m_agino_log)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_INO_AGNO_BITS)
+int xfs_ino_agno_bits(struct xfs_mount *mp);
+#define	XFS_INO_AGNO_BITS(mp)		xfs_ino_agno_bits(mp)
+#else
+#define	XFS_INO_AGNO_BITS(mp)	((mp)->m_agno_log)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_INO_BITS)
+int xfs_ino_bits(struct xfs_mount *mp);
+#define	XFS_INO_BITS(mp)		xfs_ino_bits(mp)
+#else
+#define	XFS_INO_BITS(mp)	(XFS_INO_AGNO_BITS(mp) + XFS_INO_AGINO_BITS(mp))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_INO_TO_AGNO)
+xfs_agnumber_t xfs_ino_to_agno(struct xfs_mount *mp, xfs_ino_t i);
+#define	XFS_INO_TO_AGNO(mp,i)		xfs_ino_to_agno(mp,i)
+#else
+#define	XFS_INO_TO_AGNO(mp,i)	\
+	((xfs_agnumber_t)((i) >> XFS_INO_AGINO_BITS(mp)))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_INO_TO_AGINO)
+xfs_agino_t xfs_ino_to_agino(struct xfs_mount *mp, xfs_ino_t i);
+#define	XFS_INO_TO_AGINO(mp,i)		xfs_ino_to_agino(mp,i)
+#else
+#define	XFS_INO_TO_AGINO(mp,i)	\
+	((xfs_agino_t)(i) & XFS_INO_MASK(XFS_INO_AGINO_BITS(mp)))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_INO_TO_AGBNO)
+xfs_agblock_t xfs_ino_to_agbno(struct xfs_mount *mp, xfs_ino_t i);
+#define	XFS_INO_TO_AGBNO(mp,i)		xfs_ino_to_agbno(mp,i)
+#else
+#define	XFS_INO_TO_AGBNO(mp,i)	\
+	(((xfs_agblock_t)(i) >> XFS_INO_OFFSET_BITS(mp)) & \
+	 XFS_INO_MASK(XFS_INO_AGBNO_BITS(mp)))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_INO_TO_OFFSET)
+int xfs_ino_to_offset(struct xfs_mount *mp, xfs_ino_t i);
+#define	XFS_INO_TO_OFFSET(mp,i)		xfs_ino_to_offset(mp,i)
+#else
+#define	XFS_INO_TO_OFFSET(mp,i)	\
+	((int)(i) & XFS_INO_MASK(XFS_INO_OFFSET_BITS(mp)))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_INO_TO_FSB)
+xfs_fsblock_t xfs_ino_to_fsb(struct xfs_mount *mp, xfs_ino_t i);
+#define	XFS_INO_TO_FSB(mp,i)		xfs_ino_to_fsb(mp,i)
+#else
+#define	XFS_INO_TO_FSB(mp,i)	\
+	XFS_AGB_TO_FSB(mp, XFS_INO_TO_AGNO(mp,i), XFS_INO_TO_AGBNO(mp,i))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_AGINO_TO_INO)
+xfs_ino_t
+xfs_agino_to_ino(struct xfs_mount *mp, xfs_agnumber_t a, xfs_agino_t i);
+#define	XFS_AGINO_TO_INO(mp,a,i)	xfs_agino_to_ino(mp,a,i)
+#else
+#define	XFS_AGINO_TO_INO(mp,a,i)	\
+	(((xfs_ino_t)(a) << XFS_INO_AGINO_BITS(mp)) | (i))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_AGINO_TO_AGBNO)
+xfs_agblock_t xfs_agino_to_agbno(struct xfs_mount *mp, xfs_agino_t i);
+#define	XFS_AGINO_TO_AGBNO(mp,i)	xfs_agino_to_agbno(mp,i)
+#else
+#define	XFS_AGINO_TO_AGBNO(mp,i)	((i) >> XFS_INO_OFFSET_BITS(mp))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_AGINO_TO_OFFSET)
+int xfs_agino_to_offset(struct xfs_mount *mp, xfs_agino_t i);
+#define	XFS_AGINO_TO_OFFSET(mp,i)	xfs_agino_to_offset(mp,i)
+#else
+#define	XFS_AGINO_TO_OFFSET(mp,i)	\
+	((i) & XFS_INO_MASK(XFS_INO_OFFSET_BITS(mp)))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_OFFBNO_TO_AGINO)
+xfs_agino_t xfs_offbno_to_agino(struct xfs_mount *mp, xfs_agblock_t b, int o);
+#define	XFS_OFFBNO_TO_AGINO(mp,b,o)	xfs_offbno_to_agino(mp,b,o)
+#else
+#define	XFS_OFFBNO_TO_AGINO(mp,b,o)	\
+	((xfs_agino_t)(((b) << XFS_INO_OFFSET_BITS(mp)) | (o)))
+#endif
+
+#if XFS_BIG_INUMS
+#define	XFS_MAXINUMBER		((xfs_ino_t)((1ULL << 56) - 1ULL))
+#define	XFS_INO64_OFFSET	((xfs_ino_t)(1ULL << 32))
+#else
+#define	XFS_MAXINUMBER		((xfs_ino_t)((1ULL << 32) - 1ULL))
+#endif
+#define	XFS_MAXINUMBER_32	((xfs_ino_t)((1ULL << 32) - 1ULL))
+
+#endif	/* __XFS_INUM_H__ */
diff --git a/fs/xfs/xfs_iocore.c b/fs/xfs/xfs_iocore.c
new file mode 100644
index 00000000000000..414ec496845f17
--- /dev/null
+++ b/fs/xfs/xfs_iocore.c
@@ -0,0 +1,133 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_itable.h"
+#include "xfs_btree.h"
+#include "xfs_alloc.h"
+#include "xfs_ialloc.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode_item.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_error.h"
+#include "xfs_bit.h"
+#include "xfs_rw.h"
+#include "xfs_quota.h"
+#include "xfs_trans_space.h"
+#include "xfs_iomap.h"
+
+
+STATIC xfs_fsize_t
+xfs_size_fn(
+	xfs_inode_t		*ip)
+{
+	return (ip->i_d.di_size);
+}
+
+STATIC int
+xfs_ioinit(
+	struct vfs		*vfsp,
+	struct xfs_mount_args	*mntargs,
+	int			flags)
+{
+	return xfs_mountfs(vfsp, XFS_VFSTOM(vfsp), flags);
+}
+
+xfs_ioops_t	xfs_iocore_xfs = {
+	.xfs_ioinit		= (xfs_ioinit_t) xfs_ioinit,
+	.xfs_bmapi_func		= (xfs_bmapi_t) xfs_bmapi,
+	.xfs_bmap_eof_func	= (xfs_bmap_eof_t) xfs_bmap_eof,
+	.xfs_iomap_write_direct =
+			(xfs_iomap_write_direct_t) xfs_iomap_write_direct,
+	.xfs_iomap_write_delay =
+			(xfs_iomap_write_delay_t) xfs_iomap_write_delay,
+	.xfs_iomap_write_allocate =
+			(xfs_iomap_write_allocate_t) xfs_iomap_write_allocate,
+	.xfs_iomap_write_unwritten =
+			(xfs_iomap_write_unwritten_t) xfs_iomap_write_unwritten,
+	.xfs_ilock		= (xfs_lock_t) xfs_ilock,
+	.xfs_lck_map_shared	= (xfs_lck_map_shared_t) xfs_ilock_map_shared,
+	.xfs_ilock_demote	= (xfs_lock_demote_t) xfs_ilock_demote,
+	.xfs_ilock_nowait	= (xfs_lock_nowait_t) xfs_ilock_nowait,
+	.xfs_unlock		= (xfs_unlk_t) xfs_iunlock,
+	.xfs_size_func		= (xfs_size_t) xfs_size_fn,
+	.xfs_iodone		= (xfs_iodone_t) fs_noerr,
+};
+
+void
+xfs_iocore_inode_reinit(
+	xfs_inode_t	*ip)
+{
+	xfs_iocore_t	*io = &ip->i_iocore;
+
+	io->io_flags = 0;
+	if (ip->i_d.di_flags & XFS_DIFLAG_REALTIME)
+		io->io_flags |= XFS_IOCORE_RT;
+	io->io_dmevmask = ip->i_d.di_dmevmask;
+	io->io_dmstate = ip->i_d.di_dmstate;
+}
+
+void
+xfs_iocore_inode_init(
+	xfs_inode_t	*ip)
+{
+	xfs_iocore_t	*io = &ip->i_iocore;
+	xfs_mount_t	*mp = ip->i_mount;
+
+	io->io_mount = mp;
+#ifdef DEBUG
+	io->io_lock = &ip->i_lock;
+	io->io_iolock = &ip->i_iolock;
+#endif
+
+	io->io_obj = (void *)ip;
+
+	xfs_iocore_inode_reinit(ip);
+}
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
new file mode 100644
index 00000000000000..3826e8f0e28a6d
--- /dev/null
+++ b/fs/xfs/xfs_iomap.c
@@ -0,0 +1,1000 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.	 Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+
+#include "xfs_fs.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_alloc.h"
+#include "xfs_dmapi.h"
+#include "xfs_quota.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_bit.h"
+#include "xfs_rtalloc.h"
+#include "xfs_error.h"
+#include "xfs_itable.h"
+#include "xfs_rw.h"
+#include "xfs_acl.h"
+#include "xfs_cap.h"
+#include "xfs_mac.h"
+#include "xfs_attr.h"
+#include "xfs_buf_item.h"
+#include "xfs_trans_space.h"
+#include "xfs_utils.h"
+#include "xfs_iomap.h"
+
+#if defined(XFS_RW_TRACE)
+void
+xfs_iomap_enter_trace(
+	int		tag,
+	xfs_iocore_t	*io,
+	xfs_off_t	offset,
+	ssize_t		count)
+{
+	xfs_inode_t	*ip = XFS_IO_INODE(io);
+
+	if (!ip->i_rwtrace)
+		return;
+
+	ktrace_enter(ip->i_rwtrace,
+		(void *)((unsigned long)tag),
+		(void *)ip,
+		(void *)((unsigned long)((ip->i_d.di_size >> 32) & 0xffffffff)),
+		(void *)((unsigned long)(ip->i_d.di_size & 0xffffffff)),
+		(void *)((unsigned long)((offset >> 32) & 0xffffffff)),
+		(void *)((unsigned long)(offset & 0xffffffff)),
+		(void *)((unsigned long)count),
+		(void *)((unsigned long)((io->io_new_size >> 32) & 0xffffffff)),
+		(void *)((unsigned long)(io->io_new_size & 0xffffffff)),
+		(void *)NULL,
+		(void *)NULL,
+		(void *)NULL,
+		(void *)NULL,
+		(void *)NULL,
+		(void *)NULL,
+		(void *)NULL);
+}
+
+void
+xfs_iomap_map_trace(
+	int		tag,
+	xfs_iocore_t	*io,
+	xfs_off_t	offset,
+	ssize_t		count,
+	xfs_iomap_t	*iomapp,
+	xfs_bmbt_irec_t	*imapp,
+	int		flags)
+{
+	xfs_inode_t	*ip = XFS_IO_INODE(io);
+
+	if (!ip->i_rwtrace)
+		return;
+
+	ktrace_enter(ip->i_rwtrace,
+		(void *)((unsigned long)tag),
+		(void *)ip,
+		(void *)((unsigned long)((ip->i_d.di_size >> 32) & 0xffffffff)),
+		(void *)((unsigned long)(ip->i_d.di_size & 0xffffffff)),
+		(void *)((unsigned long)((offset >> 32) & 0xffffffff)),
+		(void *)((unsigned long)(offset & 0xffffffff)),
+		(void *)((unsigned long)count),
+		(void *)((unsigned long)flags),
+		(void *)((unsigned long)((iomapp->iomap_offset >> 32) & 0xffffffff)),
+		(void *)((unsigned long)(iomapp->iomap_offset & 0xffffffff)),
+		(void *)((unsigned long)(iomapp->iomap_delta)),
+		(void *)((unsigned long)(iomapp->iomap_bsize)),
+		(void *)((unsigned long)(iomapp->iomap_bn)),
+		(void *)(__psint_t)(imapp->br_startoff),
+		(void *)((unsigned long)(imapp->br_blockcount)),
+		(void *)(__psint_t)(imapp->br_startblock));
+}
+#else
+#define xfs_iomap_enter_trace(tag, io, offset, count)
+#define xfs_iomap_map_trace(tag, io, offset, count, iomapp, imapp, flags)
+#endif
+
+#define XFS_WRITEIO_ALIGN(mp,off)	(((off) >> mp->m_writeio_log) \
+						<< mp->m_writeio_log)
+#define XFS_STRAT_WRITE_IMAPS	2
+#define XFS_WRITE_IMAPS		XFS_BMAP_MAX_NMAP
+
+STATIC int
+xfs_imap_to_bmap(
+	xfs_iocore_t	*io,
+	xfs_off_t	offset,
+	xfs_bmbt_irec_t *imap,
+	xfs_iomap_t	*iomapp,
+	int		imaps,			/* Number of imap entries */
+	int		iomaps,			/* Number of iomap entries */
+	int		flags)
+{
+	xfs_mount_t	*mp;
+	xfs_fsize_t	nisize;
+	int		pbm;
+	xfs_fsblock_t	start_block;
+
+	mp = io->io_mount;
+	nisize = XFS_SIZE(mp, io);
+	if (io->io_new_size > nisize)
+		nisize = io->io_new_size;
+
+	for (pbm = 0; imaps && pbm < iomaps; imaps--, iomapp++, imap++, pbm++) {
+		iomapp->iomap_offset = XFS_FSB_TO_B(mp, imap->br_startoff);
+		iomapp->iomap_delta = offset - iomapp->iomap_offset;
+		iomapp->iomap_bsize = XFS_FSB_TO_B(mp, imap->br_blockcount);
+		iomapp->iomap_flags = flags;
+
+		if (io->io_flags & XFS_IOCORE_RT) {
+			iomapp->iomap_flags |= IOMAP_REALTIME;
+			iomapp->iomap_target = mp->m_rtdev_targp;
+		} else {
+			iomapp->iomap_target = mp->m_ddev_targp;
+		}
+		start_block = imap->br_startblock;
+		if (start_block == HOLESTARTBLOCK) {
+			iomapp->iomap_bn = IOMAP_DADDR_NULL;
+			iomapp->iomap_flags |= IOMAP_HOLE;
+		} else if (start_block == DELAYSTARTBLOCK) {
+			iomapp->iomap_bn = IOMAP_DADDR_NULL;
+			iomapp->iomap_flags |= IOMAP_DELAY;
+		} else {
+			iomapp->iomap_bn = XFS_FSB_TO_DB_IO(io, start_block);
+			if (ISUNWRITTEN(imap))
+				iomapp->iomap_flags |= IOMAP_UNWRITTEN;
+		}
+
+		if ((iomapp->iomap_offset + iomapp->iomap_bsize) >= nisize) {
+			iomapp->iomap_flags |= IOMAP_EOF;
+		}
+
+		offset += iomapp->iomap_bsize - iomapp->iomap_delta;
+	}
+	return pbm;	/* Return the number filled */
+}
+
+int
+xfs_iomap(
+	xfs_iocore_t	*io,
+	xfs_off_t	offset,
+	ssize_t		count,
+	int		flags,
+	xfs_iomap_t	*iomapp,
+	int		*niomaps)
+{
+	xfs_mount_t	*mp = io->io_mount;
+	xfs_fileoff_t	offset_fsb, end_fsb;
+	int		error = 0;
+	int		lockmode = 0;
+	xfs_bmbt_irec_t	imap;
+	int		nimaps = 1;
+	int		bmapi_flags = 0;
+	int		iomap_flags = 0;
+
+	if (XFS_FORCED_SHUTDOWN(mp))
+		return XFS_ERROR(EIO);
+
+	switch (flags &
+		(BMAPI_READ | BMAPI_WRITE | BMAPI_ALLOCATE |
+		 BMAPI_UNWRITTEN | BMAPI_DEVICE)) {
+	case BMAPI_READ:
+		xfs_iomap_enter_trace(XFS_IOMAP_READ_ENTER, io, offset, count);
+		lockmode = XFS_LCK_MAP_SHARED(mp, io);
+		bmapi_flags = XFS_BMAPI_ENTIRE;
+		if (flags & BMAPI_IGNSTATE)
+			bmapi_flags |= XFS_BMAPI_IGSTATE;
+		break;
+	case BMAPI_WRITE:
+		xfs_iomap_enter_trace(XFS_IOMAP_WRITE_ENTER, io, offset, count);
+		lockmode = XFS_ILOCK_EXCL|XFS_EXTSIZE_WR;
+		bmapi_flags = 0;
+		XFS_ILOCK(mp, io, lockmode);
+		break;
+	case BMAPI_ALLOCATE:
+		xfs_iomap_enter_trace(XFS_IOMAP_ALLOC_ENTER, io, offset, count);
+		lockmode = XFS_ILOCK_SHARED|XFS_EXTSIZE_RD;
+		bmapi_flags = XFS_BMAPI_ENTIRE;
+		/* Attempt non-blocking lock */
+		if (flags & BMAPI_TRYLOCK) {
+			if (!XFS_ILOCK_NOWAIT(mp, io, lockmode))
+				return XFS_ERROR(EAGAIN);
+		} else {
+			XFS_ILOCK(mp, io, lockmode);
+		}
+		break;
+	case BMAPI_UNWRITTEN:
+		goto phase2;
+	case BMAPI_DEVICE:
+		lockmode = XFS_LCK_MAP_SHARED(mp, io);
+		iomapp->iomap_target = io->io_flags & XFS_IOCORE_RT ?
+			mp->m_rtdev_targp : mp->m_ddev_targp;
+		error = 0;
+		*niomaps = 1;
+		goto out;
+	default:
+		BUG();
+	}
+
+	ASSERT(offset <= mp->m_maxioffset);
+	if ((xfs_fsize_t)offset + count > mp->m_maxioffset)
+		count = mp->m_maxioffset - offset;
+	end_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)offset + count);
+	offset_fsb = XFS_B_TO_FSBT(mp, offset);
+
+	error = XFS_BMAPI(mp, NULL, io, offset_fsb,
+			(xfs_filblks_t)(end_fsb - offset_fsb),
+			bmapi_flags,  NULL, 0, &imap,
+			&nimaps, NULL);
+
+	if (error)
+		goto out;
+
+phase2:
+	switch (flags & (BMAPI_WRITE|BMAPI_ALLOCATE|BMAPI_UNWRITTEN)) {
+	case BMAPI_WRITE:
+		/* If we found an extent, return it */
+		if (nimaps && (imap.br_startblock != HOLESTARTBLOCK)) {
+			xfs_iomap_map_trace(XFS_IOMAP_WRITE_MAP, io,
+					offset, count, iomapp, &imap, flags);
+			break;
+		}
+
+		if (flags & (BMAPI_DIRECT|BMAPI_MMAP)) {
+			error = XFS_IOMAP_WRITE_DIRECT(mp, io, offset,
+					count, flags, &imap, &nimaps, nimaps);
+		} else {
+			error = XFS_IOMAP_WRITE_DELAY(mp, io, offset, count,
+					flags, &imap, &nimaps);
+		}
+		if (!error) {
+			xfs_iomap_map_trace(XFS_IOMAP_ALLOC_MAP, io,
+					offset, count, iomapp, &imap, flags);
+		}
+		iomap_flags = IOMAP_NEW;
+		break;
+	case BMAPI_ALLOCATE:
+		/* If we found an extent, return it */
+		XFS_IUNLOCK(mp, io, lockmode);
+		lockmode = 0;
+
+		if (nimaps && !ISNULLSTARTBLOCK(imap.br_startblock)) {
+			xfs_iomap_map_trace(XFS_IOMAP_WRITE_MAP, io,
+					offset, count, iomapp, &imap, flags);
+			break;
+		}
+
+		error = XFS_IOMAP_WRITE_ALLOCATE(mp, io, &imap, &nimaps);
+		break;
+	case BMAPI_UNWRITTEN:
+		lockmode = 0;
+		error = XFS_IOMAP_WRITE_UNWRITTEN(mp, io, offset, count);
+		nimaps = 0;
+		break;
+	}
+
+	if (nimaps) {
+		*niomaps = xfs_imap_to_bmap(io, offset, &imap,
+					    iomapp, nimaps, *niomaps, iomap_flags);
+	} else if (niomaps) {
+		*niomaps = 0;
+	}
+
+out:
+	if (lockmode)
+		XFS_IUNLOCK(mp, io, lockmode);
+	return XFS_ERROR(error);
+}
+
+STATIC int
+xfs_flush_space(
+	xfs_inode_t	*ip,
+	int		*fsynced,
+	int		*ioflags)
+{
+	switch (*fsynced) {
+	case 0:
+		if (ip->i_delayed_blks) {
+			xfs_iunlock(ip, XFS_ILOCK_EXCL);
+			xfs_flush_inode(ip);
+			xfs_ilock(ip, XFS_ILOCK_EXCL);
+			*fsynced = 1;
+		} else {
+			*ioflags |= BMAPI_SYNC;
+			*fsynced = 2;
+		}
+		return 0;
+	case 1:
+		*fsynced = 2;
+		*ioflags |= BMAPI_SYNC;
+		return 0;
+	case 2:
+		xfs_iunlock(ip, XFS_ILOCK_EXCL);
+		xfs_flush_device(ip);
+		xfs_ilock(ip, XFS_ILOCK_EXCL);
+		*fsynced = 3;
+		return 0;
+	}
+	return 1;
+}
+
+int
+xfs_iomap_write_direct(
+	xfs_inode_t	*ip,
+	loff_t		offset,
+	size_t		count,
+	int		flags,
+	xfs_bmbt_irec_t *ret_imap,
+	int		*nmaps,
+	int		found)
+{
+	xfs_mount_t	*mp = ip->i_mount;
+	xfs_iocore_t	*io = &ip->i_iocore;
+	xfs_fileoff_t	offset_fsb;
+	xfs_fileoff_t	last_fsb;
+	xfs_filblks_t	count_fsb;
+	xfs_fsize_t	isize;
+	xfs_fsblock_t	firstfsb;
+	int		nimaps, maps;
+	int		error;
+	int		bmapi_flag;
+	int		rt;
+	xfs_trans_t	*tp;
+	xfs_bmbt_irec_t imap[XFS_WRITE_IMAPS], *imapp;
+	xfs_bmap_free_t free_list;
+	int		aeof;
+	xfs_filblks_t	datablocks;
+	int		committed;
+	int		numrtextents;
+	uint		resblks;
+
+	/*
+	 * Make sure that the dquots are there. This doesn't hold
+	 * the ilock across a disk read.
+	 */
+	error = XFS_QM_DQATTACH(ip->i_mount, ip, XFS_QMOPT_ILOCKED);
+	if (error)
+		return XFS_ERROR(error);
+
+	maps = min(XFS_WRITE_IMAPS, *nmaps);
+	nimaps = maps;
+
+	isize = ip->i_d.di_size;
+	aeof = (offset + count) > isize;
+
+	if (io->io_new_size > isize)
+		isize = io->io_new_size;
+
+	offset_fsb = XFS_B_TO_FSBT(mp, offset);
+	last_fsb = XFS_B_TO_FSB(mp, ((xfs_ufsize_t)(offset + count)));
+	count_fsb = last_fsb - offset_fsb;
+	if (found && (ret_imap->br_startblock == HOLESTARTBLOCK)) {
+		xfs_fileoff_t	map_last_fsb;
+
+		map_last_fsb = ret_imap->br_blockcount + ret_imap->br_startoff;
+
+		if (map_last_fsb < last_fsb) {
+			last_fsb = map_last_fsb;
+			count_fsb = last_fsb - offset_fsb;
+		}
+		ASSERT(count_fsb > 0);
+	}
+
+	/*
+	 * determine if reserving space on
+	 * the data or realtime partition.
+	 */
+	if ((rt = XFS_IS_REALTIME_INODE(ip))) {
+		int	sbrtextsize, iprtextsize;
+
+		sbrtextsize = mp->m_sb.sb_rextsize;
+		iprtextsize =
+			ip->i_d.di_extsize ? ip->i_d.di_extsize : sbrtextsize;
+		numrtextents = (count_fsb + iprtextsize - 1);
+		do_div(numrtextents, sbrtextsize);
+		datablocks = 0;
+	} else {
+		datablocks = count_fsb;
+		numrtextents = 0;
+	}
+
+	/*
+	 * allocate and setup the transaction
+	 */
+	xfs_iunlock(ip, XFS_ILOCK_EXCL);
+	tp = xfs_trans_alloc(mp, XFS_TRANS_DIOSTRAT);
+
+	resblks = XFS_DIOSTRAT_SPACE_RES(mp, datablocks);
+
+	error = xfs_trans_reserve(tp, resblks,
+			XFS_WRITE_LOG_RES(mp), numrtextents,
+			XFS_TRANS_PERM_LOG_RES,
+			XFS_WRITE_LOG_COUNT);
+
+	/*
+	 * check for running out of space
+	 */
+	if (error)
+		/*
+		 * Free the transaction structure.
+		 */
+		xfs_trans_cancel(tp, 0);
+
+	xfs_ilock(ip, XFS_ILOCK_EXCL);
+
+	if (error)
+		goto error_out; /* Don't return in above if .. trans ..,
+					need lock to return */
+
+	if (XFS_TRANS_RESERVE_BLKQUOTA(mp, tp, ip, resblks)) {
+		error = (EDQUOT);
+		goto error1;
+	}
+	nimaps = 1;
+
+	bmapi_flag = XFS_BMAPI_WRITE;
+	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+	xfs_trans_ihold(tp, ip);
+
+	if (!(flags & BMAPI_MMAP) && (offset < ip->i_d.di_size || rt))
+		bmapi_flag |= XFS_BMAPI_PREALLOC;
+
+	/*
+	 * issue the bmapi() call to allocate the blocks
+	 */
+	XFS_BMAP_INIT(&free_list, &firstfsb);
+	imapp = &imap[0];
+	error = xfs_bmapi(tp, ip, offset_fsb, count_fsb,
+		bmapi_flag, &firstfsb, 0, imapp, &nimaps, &free_list);
+	if (error) {
+		goto error0;
+	}
+
+	/*
+	 * complete the transaction
+	 */
+
+	error = xfs_bmap_finish(&tp, &free_list, firstfsb, &committed);
+	if (error) {
+		goto error0;
+	}
+
+	error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES, NULL);
+	if (error) {
+		goto error_out;
+	}
+
+	/* copy any maps to caller's array and return any error. */
+	if (nimaps == 0) {
+		error = (ENOSPC);
+		goto error_out;
+	}
+
+	*ret_imap = imap[0];
+	*nmaps = 1;
+	if ( !(io->io_flags & XFS_IOCORE_RT)  && !ret_imap->br_startblock) {
+                cmn_err(CE_PANIC,"Access to block zero:  fs <%s> inode: %lld "
+                        "start_block : %llx start_off : %llx blkcnt : %llx "
+                        "extent-state : %x \n",
+                        (ip->i_mount)->m_fsname,
+                        (long long)ip->i_ino,
+                        ret_imap->br_startblock, ret_imap->br_startoff,
+                        ret_imap->br_blockcount,ret_imap->br_state);
+        }
+	return 0;
+
+ error0:	/* Cancel bmap, unlock inode, and cancel trans */
+	xfs_bmap_cancel(&free_list);
+
+ error1:	/* Just cancel transaction */
+	xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT);
+	*nmaps = 0;	/* nothing set-up here */
+
+error_out:
+	return XFS_ERROR(error);
+}
+
+int
+xfs_iomap_write_delay(
+	xfs_inode_t	*ip,
+	loff_t		offset,
+	size_t		count,
+	int		ioflag,
+	xfs_bmbt_irec_t *ret_imap,
+	int		*nmaps)
+{
+	xfs_mount_t	*mp = ip->i_mount;
+	xfs_iocore_t	*io = &ip->i_iocore;
+	xfs_fileoff_t	offset_fsb;
+	xfs_fileoff_t	last_fsb;
+	xfs_fsize_t	isize;
+	xfs_fsblock_t	firstblock;
+	int		nimaps;
+	int		error;
+	xfs_bmbt_irec_t imap[XFS_WRITE_IMAPS];
+	int		aeof;
+	int		fsynced = 0;
+
+	ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE) != 0);
+
+	/*
+	 * Make sure that the dquots are there. This doesn't hold
+	 * the ilock across a disk read.
+	 */
+
+	error = XFS_QM_DQATTACH(mp, ip, XFS_QMOPT_ILOCKED);
+	if (error)
+		return XFS_ERROR(error);
+
+retry:
+	isize = ip->i_d.di_size;
+	if (io->io_new_size > isize) {
+		isize = io->io_new_size;
+	}
+
+	aeof = 0;
+	offset_fsb = XFS_B_TO_FSBT(mp, offset);
+	last_fsb = XFS_B_TO_FSB(mp, ((xfs_ufsize_t)(offset + count)));
+	/*
+	 * If the caller is doing a write at the end of the file,
+	 * then extend the allocation (and the buffer used for the write)
+	 * out to the file system's write iosize.  We clean up any extra
+	 * space left over when the file is closed in xfs_inactive().
+	 *
+	 * For sync writes, we are flushing delayed allocate space to
+	 * try to make additional space available for allocation near
+	 * the filesystem full boundary - preallocation hurts in that
+	 * situation, of course.
+	 */
+	if (!(ioflag & BMAPI_SYNC) && ((offset + count) > ip->i_d.di_size)) {
+		xfs_off_t	aligned_offset;
+		xfs_filblks_t   count_fsb;
+		unsigned int	iosize;
+		xfs_fileoff_t	ioalign;
+		int		n;
+		xfs_fileoff_t   start_fsb;
+
+		/*
+		 * If there are any real blocks past eof, then don't
+		 * do any speculative allocation.
+		 */
+		start_fsb = XFS_B_TO_FSBT(mp,
+					((xfs_ufsize_t)(offset + count - 1)));
+		count_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)XFS_MAXIOFFSET(mp));
+		while (count_fsb > 0) {
+			nimaps = XFS_WRITE_IMAPS;
+			error = XFS_BMAPI(mp, NULL, io, start_fsb, count_fsb,
+					0, &firstblock, 0, imap, &nimaps, NULL);
+			if (error) {
+				return error;
+			}
+			for (n = 0; n < nimaps; n++) {
+				if ( !(io->io_flags & XFS_IOCORE_RT)  && 
+					!imap[n].br_startblock) {
+					cmn_err(CE_PANIC,"Access to block "
+						"zero:  fs <%s> inode: %lld "
+						"start_block : %llx start_off "
+						": %llx blkcnt : %llx "
+						"extent-state : %x \n",
+						(ip->i_mount)->m_fsname,
+						(long long)ip->i_ino,
+						imap[n].br_startblock,
+						imap[n].br_startoff,
+						imap[n].br_blockcount,
+						imap[n].br_state);
+        			}
+				if ((imap[n].br_startblock != HOLESTARTBLOCK) &&
+				    (imap[n].br_startblock != DELAYSTARTBLOCK)) {
+					goto write_map;
+				}
+				start_fsb += imap[n].br_blockcount;
+				count_fsb -= imap[n].br_blockcount;
+			}
+		}
+		iosize = mp->m_writeio_blocks;
+		aligned_offset = XFS_WRITEIO_ALIGN(mp, (offset + count - 1));
+		ioalign = XFS_B_TO_FSBT(mp, aligned_offset);
+		last_fsb = ioalign + iosize;
+		aeof = 1;
+	}
+write_map:
+	nimaps = XFS_WRITE_IMAPS;
+	firstblock = NULLFSBLOCK;
+
+	/*
+	 * If mounted with the "-o swalloc" option, roundup the allocation
+	 * request to a stripe width boundary if the file size is >=
+	 * stripe width and we are allocating past the allocation eof.
+	 */
+	if (!(io->io_flags & XFS_IOCORE_RT) && mp->m_swidth 
+	    && (mp->m_flags & XFS_MOUNT_SWALLOC)
+	    && (isize >= XFS_FSB_TO_B(mp, mp->m_swidth)) && aeof) {
+		int eof;
+		xfs_fileoff_t new_last_fsb;
+
+		new_last_fsb = roundup_64(last_fsb, mp->m_swidth);
+		error = xfs_bmap_eof(ip, new_last_fsb, XFS_DATA_FORK, &eof);
+		if (error) {
+			return error;
+		}
+		if (eof) {
+			last_fsb = new_last_fsb;
+		}
+	/*
+	 * Roundup the allocation request to a stripe unit (m_dalign) boundary
+	 * if the file size is >= stripe unit size, and we are allocating past
+	 * the allocation eof.
+	 */
+	} else if (!(io->io_flags & XFS_IOCORE_RT) && mp->m_dalign &&
+		   (isize >= XFS_FSB_TO_B(mp, mp->m_dalign)) && aeof) {
+		int eof;
+		xfs_fileoff_t new_last_fsb;
+		new_last_fsb = roundup_64(last_fsb, mp->m_dalign);
+		error = xfs_bmap_eof(ip, new_last_fsb, XFS_DATA_FORK, &eof);
+		if (error) {
+			return error;
+		}
+		if (eof) {
+			last_fsb = new_last_fsb;
+		}
+	/*
+	 * Round up the allocation request to a real-time extent boundary
+	 * if the file is on the real-time subvolume.
+	 */
+	} else if (io->io_flags & XFS_IOCORE_RT && aeof) {
+		int eof;
+		xfs_fileoff_t new_last_fsb;
+
+		new_last_fsb = roundup_64(last_fsb, mp->m_sb.sb_rextsize);
+		error = XFS_BMAP_EOF(mp, io, new_last_fsb, XFS_DATA_FORK, &eof);
+		if (error) {
+			return error;
+		}
+		if (eof)
+			last_fsb = new_last_fsb;
+	}
+	error = xfs_bmapi(NULL, ip, offset_fsb,
+			  (xfs_filblks_t)(last_fsb - offset_fsb),
+			  XFS_BMAPI_DELAY | XFS_BMAPI_WRITE |
+			  XFS_BMAPI_ENTIRE, &firstblock, 1, imap,
+			  &nimaps, NULL);
+	/*
+	 * This can be EDQUOT, if nimaps == 0
+	 */
+	if (error && (error != ENOSPC)) {
+		return XFS_ERROR(error);
+	}
+	/*
+	 * If bmapi returned us nothing, and if we didn't get back EDQUOT,
+	 * then we must have run out of space.
+	 */
+	if (nimaps == 0) {
+		xfs_iomap_enter_trace(XFS_IOMAP_WRITE_NOSPACE,
+					io, offset, count);
+		if (xfs_flush_space(ip, &fsynced, &ioflag))
+			return XFS_ERROR(ENOSPC);
+
+		error = 0;
+		goto retry;
+	}
+
+	*ret_imap = imap[0];
+	*nmaps = 1;
+	if ( !(io->io_flags & XFS_IOCORE_RT)  && !ret_imap->br_startblock) {
+		cmn_err(CE_PANIC,"Access to block zero:  fs <%s> inode: %lld "
+                        "start_block : %llx start_off : %llx blkcnt : %llx "
+                        "extent-state : %x \n",
+                        (ip->i_mount)->m_fsname,
+                        (long long)ip->i_ino,
+                        ret_imap->br_startblock, ret_imap->br_startoff,
+                        ret_imap->br_blockcount,ret_imap->br_state);
+	}
+	return 0;
+}
+
+/*
+ * Pass in a delayed allocate extent, convert it to real extents;
+ * return to the caller the extent we create which maps on top of
+ * the originating callers request.
+ *
+ * Called without a lock on the inode.
+ */
+int
+xfs_iomap_write_allocate(
+	xfs_inode_t	*ip,
+	xfs_bmbt_irec_t *map,
+	int		*retmap)
+{
+	xfs_mount_t	*mp = ip->i_mount;
+	xfs_iocore_t    *io = &ip->i_iocore;
+	xfs_fileoff_t	offset_fsb, last_block;
+	xfs_fileoff_t	end_fsb, map_start_fsb;
+	xfs_fsblock_t	first_block;
+	xfs_bmap_free_t	free_list;
+	xfs_filblks_t	count_fsb;
+	xfs_bmbt_irec_t	imap[XFS_STRAT_WRITE_IMAPS];
+	xfs_trans_t	*tp;
+	int		i, nimaps, committed;
+	int		error = 0;
+	int		nres;
+
+	*retmap = 0;
+
+	/*
+	 * Make sure that the dquots are there.
+	 */
+	if ((error = XFS_QM_DQATTACH(mp, ip, 0)))
+		return XFS_ERROR(error);
+
+	offset_fsb = map->br_startoff;
+	count_fsb = map->br_blockcount;
+	map_start_fsb = offset_fsb;
+
+	XFS_STATS_ADD(xs_xstrat_bytes, XFS_FSB_TO_B(mp, count_fsb));
+
+	while (count_fsb != 0) {
+		/*
+		 * Set up a transaction with which to allocate the
+		 * backing store for the file.  Do allocations in a
+		 * loop until we get some space in the range we are
+		 * interested in.  The other space that might be allocated
+		 * is in the delayed allocation extent on which we sit
+		 * but before our buffer starts.
+		 */
+
+		nimaps = 0;
+		while (nimaps == 0) {
+			tp = xfs_trans_alloc(mp, XFS_TRANS_STRAT_WRITE);
+			nres = XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK);
+			error = xfs_trans_reserve(tp, nres,
+					XFS_WRITE_LOG_RES(mp),
+					0, XFS_TRANS_PERM_LOG_RES,
+					XFS_WRITE_LOG_COUNT);
+			if (error == ENOSPC) {
+				error = xfs_trans_reserve(tp, 0,
+						XFS_WRITE_LOG_RES(mp),
+						0,
+						XFS_TRANS_PERM_LOG_RES,
+						XFS_WRITE_LOG_COUNT);
+			}
+			if (error) {
+				xfs_trans_cancel(tp, 0);
+				return XFS_ERROR(error);
+			}
+			xfs_ilock(ip, XFS_ILOCK_EXCL);
+			xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+			xfs_trans_ihold(tp, ip);
+
+			XFS_BMAP_INIT(&free_list, &first_block);
+
+			nimaps = XFS_STRAT_WRITE_IMAPS;
+			/*
+			 * Ensure we don't go beyond eof - it is possible
+			 * the extents changed since we did the read call,
+			 * we dropped the ilock in the interim.
+			 */
+
+			end_fsb = XFS_B_TO_FSB(mp, ip->i_d.di_size);
+			xfs_bmap_last_offset(NULL, ip, &last_block,
+				XFS_DATA_FORK);
+			last_block = XFS_FILEOFF_MAX(last_block, end_fsb);
+			if ((map_start_fsb + count_fsb) > last_block) {
+				count_fsb = last_block - map_start_fsb;
+				if (count_fsb == 0) {
+					error = EAGAIN;
+					goto trans_cancel;
+				}
+			}
+
+			/* Go get the actual blocks */
+			error = xfs_bmapi(tp, ip, map_start_fsb, count_fsb,
+					XFS_BMAPI_WRITE, &first_block, 1,
+					imap, &nimaps, &free_list);
+			if (error)
+				goto trans_cancel;
+
+			error = xfs_bmap_finish(&tp, &free_list,
+					first_block, &committed);
+			if (error)
+				goto trans_cancel;
+
+			error = xfs_trans_commit(tp,
+					XFS_TRANS_RELEASE_LOG_RES, NULL);
+			if (error)
+				goto error0;
+
+			xfs_iunlock(ip, XFS_ILOCK_EXCL);
+		}
+
+		/*
+		 * See if we were able to allocate an extent that
+		 * covers at least part of the callers request
+		 */
+
+		for (i = 0; i < nimaps; i++) {
+			if ( !(io->io_flags & XFS_IOCORE_RT)  && 
+				!imap[i].br_startblock) {
+				cmn_err(CE_PANIC,"Access to block zero:  "
+					"fs <%s> inode: %lld "
+					"start_block : %llx start_off : %llx " 
+					"blkcnt : %llx extent-state : %x \n",
+					(ip->i_mount)->m_fsname,
+					(long long)ip->i_ino,
+					imap[i].br_startblock,
+					imap[i].br_startoff,
+				        imap[i].br_blockcount,imap[i].br_state);
+                        }
+			if ((map->br_startoff >= imap[i].br_startoff) &&
+			    (map->br_startoff < (imap[i].br_startoff +
+						 imap[i].br_blockcount))) {
+				*map = imap[i];
+				*retmap = 1;
+				XFS_STATS_INC(xs_xstrat_quick);
+				return 0;
+			}
+			count_fsb -= imap[i].br_blockcount;
+		}
+
+		/* So far we have not mapped the requested part of the
+		 * file, just surrounding data, try again.
+		 */
+		nimaps--;
+		offset_fsb = imap[nimaps].br_startoff +
+			     imap[nimaps].br_blockcount;
+		map_start_fsb = offset_fsb;
+	}
+
+trans_cancel:
+	xfs_bmap_cancel(&free_list);
+	xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT);
+error0:
+	xfs_iunlock(ip, XFS_ILOCK_EXCL);
+	return XFS_ERROR(error);
+}
+
+int
+xfs_iomap_write_unwritten(
+	xfs_inode_t	*ip,
+	loff_t		offset,
+	size_t		count)
+{
+	xfs_mount_t	*mp = ip->i_mount;
+	xfs_iocore_t    *io = &ip->i_iocore;
+	xfs_trans_t	*tp;
+	xfs_fileoff_t	offset_fsb;
+	xfs_filblks_t	count_fsb;
+	xfs_filblks_t	numblks_fsb;
+	xfs_bmbt_irec_t	imap;
+	int		committed;
+	int		error;
+	int		nres;
+	int		nimaps;
+	xfs_fsblock_t	firstfsb;
+	xfs_bmap_free_t	free_list;
+
+	xfs_iomap_enter_trace(XFS_IOMAP_UNWRITTEN,
+				&ip->i_iocore, offset, count);
+
+	offset_fsb = XFS_B_TO_FSBT(mp, offset);
+	count_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)offset + count);
+	count_fsb = (xfs_filblks_t)(count_fsb - offset_fsb);
+
+	do {
+		nres = XFS_DIOSTRAT_SPACE_RES(mp, 0);
+
+		/*
+		 * set up a transaction to convert the range of extents
+		 * from unwritten to real. Do allocations in a loop until
+		 * we have covered the range passed in.
+		 */
+
+		tp = xfs_trans_alloc(mp, XFS_TRANS_STRAT_WRITE);
+		error = xfs_trans_reserve(tp, nres,
+				XFS_WRITE_LOG_RES(mp), 0,
+				XFS_TRANS_PERM_LOG_RES,
+				XFS_WRITE_LOG_COUNT);
+		if (error) {
+			xfs_trans_cancel(tp, 0);
+			goto error0;
+		}
+
+		xfs_ilock(ip, XFS_ILOCK_EXCL);
+		xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+		xfs_trans_ihold(tp, ip);
+
+		/*
+		 * Modify the unwritten extent state of the buffer.
+		 */
+		XFS_BMAP_INIT(&free_list, &firstfsb);
+		nimaps = 1;
+		error = xfs_bmapi(tp, ip, offset_fsb, count_fsb,
+				  XFS_BMAPI_WRITE, &firstfsb,
+				  1, &imap, &nimaps, &free_list);
+		if (error)
+			goto error_on_bmapi_transaction;
+
+		error = xfs_bmap_finish(&(tp), &(free_list),
+				firstfsb, &committed);
+		if (error)
+			goto error_on_bmapi_transaction;
+
+		error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES, NULL);
+		xfs_iunlock(ip, XFS_ILOCK_EXCL);
+		if (error)
+			goto error0;
+		
+		if ( !(io->io_flags & XFS_IOCORE_RT)  && !imap.br_startblock) {
+			cmn_err(CE_PANIC,"Access to block zero:  fs <%s> "
+				"inode: %lld start_block : %llx start_off : "
+				"%llx blkcnt : %llx extent-state : %x \n",
+				(ip->i_mount)->m_fsname,
+				(long long)ip->i_ino,
+				imap.br_startblock,imap.br_startoff,
+				imap.br_blockcount,imap.br_state);
+        	}
+
+		if ((numblks_fsb = imap.br_blockcount) == 0) {
+			/*
+			 * The numblks_fsb value should always get
+			 * smaller, otherwise the loop is stuck.
+			 */
+			ASSERT(imap.br_blockcount);
+			break;
+		}
+		offset_fsb += numblks_fsb;
+		count_fsb -= numblks_fsb;
+	} while (count_fsb > 0);
+
+	return 0;
+
+error_on_bmapi_transaction:
+	xfs_bmap_cancel(&free_list);
+	xfs_trans_cancel(tp, (XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT));
+	xfs_iunlock(ip, XFS_ILOCK_EXCL);
+error0:
+	return XFS_ERROR(error);
+}
diff --git a/fs/xfs/xfs_iomap.h b/fs/xfs/xfs_iomap.h
new file mode 100644
index 00000000000000..31c91087cb3343
--- /dev/null
+++ b/fs/xfs/xfs_iomap.h
@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2003,2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+
+
+#ifndef __XFS_IOMAP_H__
+#define __XFS_IOMAP_H__
+
+#define IOMAP_DADDR_NULL ((xfs_daddr_t) (-1LL))
+
+
+typedef enum {				/* iomap_flags values */
+	IOMAP_EOF =		0x01,	/* mapping contains EOF   */
+	IOMAP_HOLE =		0x02,	/* mapping covers a hole  */
+	IOMAP_DELAY =		0x04,	/* mapping covers delalloc region  */
+	IOMAP_REALTIME =	0x10,	/* mapping on the realtime device  */
+	IOMAP_UNWRITTEN =	0x20,	/* mapping covers allocated */
+					/* but uninitialized file data  */
+	IOMAP_NEW =		0x40	/* just allocate */
+} iomap_flags_t;
+
+typedef enum {
+	/* base extent manipulation calls */
+	BMAPI_READ = (1 << 0),		/* read extents */
+	BMAPI_WRITE = (1 << 1),		/* create extents */
+	BMAPI_ALLOCATE = (1 << 2),	/* delayed allocate to real extents */
+	BMAPI_UNWRITTEN  = (1 << 3),	/* unwritten extents to real extents */
+	/* modifiers */
+	BMAPI_IGNSTATE = (1 << 4),	/* ignore unwritten state on read */
+	BMAPI_DIRECT = (1 << 5),		/* direct instead of buffered write */
+	BMAPI_MMAP = (1 << 6),		/* allocate for mmap write */
+	BMAPI_SYNC = (1 << 7),		/* sync write to flush delalloc space */
+	BMAPI_TRYLOCK = (1 << 8),	/* non-blocking request */
+	BMAPI_DEVICE = (1 << 9),	/* we only want to know the device */
+} bmapi_flags_t;
+
+
+/*
+ * xfs_iomap_t:  File system I/O map
+ *
+ * The iomap_bn field is expressed in 512-byte blocks, and is where the 
+ * mapping starts on disk.
+ *
+ * The iomap_offset, iomap_bsize and iomap_delta fields are in bytes.
+ * iomap_offset is the offset of the mapping in the file itself.
+ * iomap_bsize is the size of the mapping,  iomap_delta is the 
+ * desired data's offset into the mapping, given the offset supplied 
+ * to the file I/O map routine.
+ *
+ * When a request is made to read beyond the logical end of the object,
+ * iomap_size may be set to 0, but iomap_offset and iomap_length should be set
+ * to the actual amount of underlying storage that has been allocated, if any.
+ */
+
+typedef struct xfs_iomap {
+	xfs_daddr_t		iomap_bn;	/* first 512b blk of mapping */
+	xfs_buftarg_t		*iomap_target;
+	loff_t			iomap_offset;	/* offset of mapping, bytes */
+	loff_t			iomap_bsize;	/* size of mapping, bytes */
+	size_t			iomap_delta;	/* offset into mapping, bytes */
+	iomap_flags_t		iomap_flags;
+} xfs_iomap_t;
+
+struct xfs_iocore;
+struct xfs_inode;
+struct xfs_bmbt_irec;
+
+extern int xfs_iomap(struct xfs_iocore *, xfs_off_t, ssize_t, int,
+		     struct xfs_iomap *, int *);
+extern int xfs_iomap_write_direct(struct xfs_inode *, loff_t, size_t,
+				  int, struct xfs_bmbt_irec *, int *, int);
+extern int xfs_iomap_write_delay(struct xfs_inode *, loff_t, size_t, int,
+				 struct xfs_bmbt_irec *, int *);
+extern int xfs_iomap_write_allocate(struct xfs_inode *,
+				struct xfs_bmbt_irec *, int *);
+extern int xfs_iomap_write_unwritten(struct xfs_inode *, loff_t, size_t);
+
+#endif /* __XFS_IOMAP_H__*/
diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c
new file mode 100644
index 00000000000000..0e86be199cd105
--- /dev/null
+++ b/fs/xfs/xfs_itable.c
@@ -0,0 +1,806 @@
+/*
+ * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_ag.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_ialloc.h"
+#include "xfs_itable.h"
+#include "xfs_error.h"
+
+#ifndef HAVE_USERACC
+#define useracc(ubuffer, size, flags, foo) (0)
+#define unuseracc(ubuffer, size, flags)
+#endif
+
+/*
+ * Return stat information for one inode.
+ * Return 0 if ok, else errno.
+ */
+int		       		/* error status */
+xfs_bulkstat_one(
+	xfs_mount_t	*mp,		/* mount point for filesystem */
+	xfs_ino_t	ino,		/* inode number to get data for */
+	void		__user *buffer,	/* buffer to place output in */
+	int		ubsize,		/* size of buffer */
+	void		*private_data,	/* my private data */
+	xfs_daddr_t	bno,		/* starting bno of inode cluster */
+	int		*ubused,	/* bytes used by me */
+	void		*dibuff,	/* on-disk inode buffer */
+	int		*stat)		/* BULKSTAT_RV_... */
+{
+	xfs_bstat_t	*buf;		/* return buffer */
+	int		error;		/* error value */
+	xfs_dinode_t	*dip;		/* dinode inode pointer */
+	xfs_dinode_core_t *dic;		/* dinode core info pointer */
+	xfs_inode_t	*ip = NULL;	/* incore inode pointer */
+	xfs_arch_t      arch;           /* these are set according to      */
+
+	dip = (xfs_dinode_t *)dibuff;
+
+	if (!buffer || ino == mp->m_sb.sb_rbmino || ino == mp->m_sb.sb_rsumino ||
+	    (XFS_SB_VERSION_HASQUOTA(&mp->m_sb) &&
+	     (ino == mp->m_sb.sb_uquotino || ino == mp->m_sb.sb_gquotino))) {
+		*stat = BULKSTAT_RV_NOTHING;
+		return XFS_ERROR(EINVAL);
+	}
+	if (ubsize < sizeof(*buf)) {
+		*stat = BULKSTAT_RV_NOTHING;
+		return XFS_ERROR(ENOMEM);
+	}
+
+	buf = kmem_alloc(sizeof(*buf), KM_SLEEP);
+
+	if (dip == NULL) {
+		/* We're not being passed a pointer to a dinode.  This happens
+		 * if BULKSTAT_FG_IGET is selected.  Do the iget.
+		 */
+		error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_SHARED, &ip, bno);
+		if (error) {
+			*stat = BULKSTAT_RV_NOTHING;
+			return error;
+		}
+		ASSERT(ip != NULL);
+		ASSERT(ip->i_blkno != (xfs_daddr_t)0);
+		if (ip->i_d.di_mode == 0) {
+			xfs_iput_new(ip, XFS_ILOCK_SHARED);
+			*stat = BULKSTAT_RV_NOTHING;
+			kmem_free(buf, sizeof(*buf));
+			return XFS_ERROR(ENOENT);
+		}
+		dic = &ip->i_d;
+		arch = ARCH_NOCONVERT;		/* in-core! */
+		ASSERT(dic != NULL);
+
+		/* xfs_iget returns the following without needing
+		 * further change.
+		 */
+		buf->bs_nlink = dic->di_nlink;
+		buf->bs_projid = dic->di_projid;
+
+	} else {
+		dic = &dip->di_core;
+		ASSERT(dic != NULL);
+
+		/* buffer dinode_core is in on-disk arch */
+		arch = ARCH_CONVERT;
+
+		/*
+		 * The inode format changed when we moved the link count and
+		 * made it 32 bits long.  If this is an old format inode,
+		 * convert it in memory to look like a new one.  If it gets
+		 * flushed to disk we will convert back before flushing or
+		 * logging it.  We zero out the new projid field and the old link
+		 * count field.  We'll handle clearing the pad field (the remains
+		 * of the old uuid field) when we actually convert the inode to
+		 * the new format. We don't change the version number so that we
+		 * can distinguish this from a real new format inode.
+		 */
+		if (INT_GET(dic->di_version, arch) == XFS_DINODE_VERSION_1) {
+			buf->bs_nlink = INT_GET(dic->di_onlink, arch);
+			buf->bs_projid = 0;
+		}
+		else {
+			buf->bs_nlink = INT_GET(dic->di_nlink, arch);
+			buf->bs_projid = INT_GET(dic->di_projid, arch);
+		}
+
+	}
+
+	buf->bs_ino = ino;
+	buf->bs_mode = INT_GET(dic->di_mode, arch);
+	buf->bs_uid = INT_GET(dic->di_uid, arch);
+	buf->bs_gid = INT_GET(dic->di_gid, arch);
+	buf->bs_size = INT_GET(dic->di_size, arch);
+	buf->bs_atime.tv_sec = INT_GET(dic->di_atime.t_sec, arch);
+	buf->bs_atime.tv_nsec = INT_GET(dic->di_atime.t_nsec, arch);
+	buf->bs_mtime.tv_sec = INT_GET(dic->di_mtime.t_sec, arch);
+	buf->bs_mtime.tv_nsec = INT_GET(dic->di_mtime.t_nsec, arch);
+	buf->bs_ctime.tv_sec = INT_GET(dic->di_ctime.t_sec, arch);
+	buf->bs_ctime.tv_nsec = INT_GET(dic->di_ctime.t_nsec, arch);
+	buf->bs_xflags = xfs_dic2xflags(dic, arch);
+	buf->bs_extsize = INT_GET(dic->di_extsize, arch) << mp->m_sb.sb_blocklog;
+	buf->bs_extents = INT_GET(dic->di_nextents, arch);
+	buf->bs_gen = INT_GET(dic->di_gen, arch);
+	memset(buf->bs_pad, 0, sizeof(buf->bs_pad));
+	buf->bs_dmevmask = INT_GET(dic->di_dmevmask, arch);
+	buf->bs_dmstate = INT_GET(dic->di_dmstate, arch);
+	buf->bs_aextents = INT_GET(dic->di_anextents, arch);
+
+	switch (INT_GET(dic->di_format, arch)) {
+	case XFS_DINODE_FMT_DEV:
+		if ( ip ) {
+			buf->bs_rdev = ip->i_df.if_u2.if_rdev;
+		} else {
+			buf->bs_rdev = INT_GET(dip->di_u.di_dev, arch);
+		}
+
+		buf->bs_blksize = BLKDEV_IOSIZE;
+		buf->bs_blocks = 0;
+		break;
+	case XFS_DINODE_FMT_LOCAL:
+	case XFS_DINODE_FMT_UUID:
+		buf->bs_rdev = 0;
+		buf->bs_blksize = mp->m_sb.sb_blocksize;
+		buf->bs_blocks = 0;
+		break;
+	case XFS_DINODE_FMT_EXTENTS:
+	case XFS_DINODE_FMT_BTREE:
+		buf->bs_rdev = 0;
+		buf->bs_blksize = mp->m_sb.sb_blocksize;
+		if ( ip ) {
+			buf->bs_blocks = INT_GET(dic->di_nblocks, arch) + ip->i_delayed_blks;
+		} else {
+			buf->bs_blocks = INT_GET(dic->di_nblocks, arch);
+		}
+		break;
+	}
+
+	if (ip) {
+		xfs_iput(ip, XFS_ILOCK_SHARED);
+	}
+
+	if (copy_to_user(buffer, buf, sizeof(*buf)))  {
+		kmem_free(buf, sizeof(*buf));
+		*stat = BULKSTAT_RV_NOTHING;
+		return EFAULT;
+	}
+
+	kmem_free(buf, sizeof(*buf));
+	*stat = BULKSTAT_RV_DIDONE;
+	if (ubused)
+		*ubused = sizeof(*buf);
+	return 0;
+}
+
+/*
+ * Return stat information in bulk (by-inode) for the filesystem.
+ */
+int					/* error status */
+xfs_bulkstat(
+	xfs_mount_t		*mp,	/* mount point for filesystem */
+	xfs_ino_t		*lastinop, /* last inode returned */
+	int			*ubcountp, /* size of buffer/count returned */
+	bulkstat_one_pf		formatter, /* func that'd fill a single buf */
+	void			*private_data,/* private data for formatter */
+	size_t			statstruct_size, /* sizeof struct filling */
+	char			__user *ubuffer, /* buffer with inode stats */
+	int			flags,	/* defined in xfs_itable.h */
+	int			*done)	/* 1 if there're more stats to get */
+{
+	xfs_agblock_t		agbno=0;/* allocation group block number */
+	xfs_buf_t		*agbp;	/* agi header buffer */
+	xfs_agi_t		*agi;	/* agi header data */
+	xfs_agino_t		agino;	/* inode # in allocation group */
+	xfs_agnumber_t		agno;	/* allocation group number */
+	xfs_daddr_t		bno;	/* inode cluster start daddr */
+	int			chunkidx; /* current index into inode chunk */
+	int			clustidx; /* current index into inode cluster */
+	xfs_btree_cur_t		*cur;	/* btree cursor for ialloc btree */
+	int			end_of_ag; /* set if we've seen the ag end */
+	int			error;	/* error code */
+	int                     fmterror;/* bulkstat formatter result */
+	__int32_t		gcnt;	/* current btree rec's count */
+	xfs_inofree_t		gfree;	/* current btree rec's free mask */
+	xfs_agino_t		gino;	/* current btree rec's start inode */
+	int			i;	/* loop index */
+	int			icount;	/* count of inodes good in irbuf */
+	xfs_ino_t		ino;	/* inode number (filesystem) */
+	xfs_inobt_rec_t		*irbp;	/* current irec buffer pointer */
+	xfs_inobt_rec_t		*irbuf;	/* start of irec buffer */
+	xfs_inobt_rec_t		*irbufend; /* end of good irec buffer entries */
+	xfs_ino_t		lastino=0; /* last inode number returned */
+	int			nbcluster; /* # of blocks in a cluster */
+	int			nicluster; /* # of inodes in a cluster */
+	int			nimask;	/* mask for inode clusters */
+	int			nirbuf;	/* size of irbuf */
+	int			rval;	/* return value error code */
+	int			tmp;	/* result value from btree calls */
+	int			ubcount; /* size of user's buffer */
+	int			ubleft;	/* bytes left in user's buffer */
+	char			__user *ubufp;	/* pointer into user's buffer */
+	int			ubelem;	/* spaces used in user's buffer */
+	int			ubused;	/* bytes used by formatter */
+	xfs_buf_t		*bp;	/* ptr to on-disk inode cluster buf */
+	xfs_dinode_t		*dip;	/* ptr into bp for specific inode */
+	xfs_inode_t		*ip;	/* ptr to in-core inode struct */
+
+	/*
+	 * Get the last inode value, see if there's nothing to do.
+	 */
+	ino = (xfs_ino_t)*lastinop;
+	dip = NULL;
+	agno = XFS_INO_TO_AGNO(mp, ino);
+	agino = XFS_INO_TO_AGINO(mp, ino);
+	if (agno >= mp->m_sb.sb_agcount ||
+	    ino != XFS_AGINO_TO_INO(mp, agno, agino)) {
+		*done = 1;
+		*ubcountp = 0;
+		return 0;
+	}
+	ubcount = *ubcountp; /* statstruct's */
+	ubleft = ubcount * statstruct_size; /* bytes */
+	*ubcountp = ubelem = 0;
+	*done = 0;
+	fmterror = 0;
+	ubufp = ubuffer;
+	nicluster = mp->m_sb.sb_blocksize >= XFS_INODE_CLUSTER_SIZE(mp) ?
+		mp->m_sb.sb_inopblock :
+		(XFS_INODE_CLUSTER_SIZE(mp) >> mp->m_sb.sb_inodelog);
+	nimask = ~(nicluster - 1);
+	nbcluster = nicluster >> mp->m_sb.sb_inopblog;
+	/*
+	 * Lock down the user's buffer. If a buffer was not sent, as in the case
+	 * disk quota code calls here, we skip this.
+	 */
+	if (ubuffer &&
+	    (error = useracc(ubuffer, ubcount * statstruct_size,
+			(B_READ|B_PHYS), NULL))) {
+		return error;
+	}
+	/*
+	 * Allocate a page-sized buffer for inode btree records.
+	 * We could try allocating something smaller, but for normal
+	 * calls we'll always (potentially) need the whole page.
+	 */
+	irbuf = kmem_alloc(NBPC, KM_SLEEP);
+	nirbuf = NBPC / sizeof(*irbuf);
+	/*
+	 * Loop over the allocation groups, starting from the last
+	 * inode returned; 0 means start of the allocation group.
+	 */
+	rval = 0;
+	while (ubleft >= statstruct_size && agno < mp->m_sb.sb_agcount) {
+		bp = NULL;
+		down_read(&mp->m_peraglock);
+		error = xfs_ialloc_read_agi(mp, NULL, agno, &agbp);
+		up_read(&mp->m_peraglock);
+		if (error) {
+			/*
+			 * Skip this allocation group and go to the next one.
+			 */
+			agno++;
+			agino = 0;
+			continue;
+		}
+		agi = XFS_BUF_TO_AGI(agbp);
+		/*
+		 * Allocate and initialize a btree cursor for ialloc btree.
+		 */
+		cur = xfs_btree_init_cursor(mp, NULL, agbp, agno, XFS_BTNUM_INO,
+			(xfs_inode_t *)0, 0);
+		irbp = irbuf;
+		irbufend = irbuf + nirbuf;
+		end_of_ag = 0;
+		/*
+		 * If we're returning in the middle of an allocation group,
+		 * we need to get the remainder of the chunk we're in.
+		 */
+		if (agino > 0) {
+			/*
+			 * Lookup the inode chunk that this inode lives in.
+			 */
+			error = xfs_inobt_lookup_le(cur, agino, 0, 0, &tmp);
+			if (!error &&	/* no I/O error */
+			    tmp &&	/* lookup succeeded */
+					/* got the record, should always work */
+			    !(error = xfs_inobt_get_rec(cur, &gino, &gcnt,
+				    &gfree, &i, ARCH_NOCONVERT)) &&
+			    i == 1 &&
+					/* this is the right chunk */
+			    agino < gino + XFS_INODES_PER_CHUNK &&
+					/* lastino was not last in chunk */
+			    (chunkidx = agino - gino + 1) <
+				    XFS_INODES_PER_CHUNK &&
+					/* there are some left allocated */
+			    XFS_INOBT_MASKN(chunkidx,
+				    XFS_INODES_PER_CHUNK - chunkidx) & ~gfree) {
+				/*
+				 * Grab the chunk record.  Mark all the
+				 * uninteresting inodes (because they're
+				 * before our start point) free.
+				 */
+				for (i = 0; i < chunkidx; i++) {
+					if (XFS_INOBT_MASK(i) & ~gfree)
+						gcnt++;
+				}
+				gfree |= XFS_INOBT_MASKN(0, chunkidx);
+				INT_SET(irbp->ir_startino, ARCH_CONVERT, gino);
+				INT_SET(irbp->ir_freecount, ARCH_CONVERT, gcnt);
+				INT_SET(irbp->ir_free, ARCH_CONVERT, gfree);
+				irbp++;
+				agino = gino + XFS_INODES_PER_CHUNK;
+				icount = XFS_INODES_PER_CHUNK - gcnt;
+			} else {
+				/*
+				 * If any of those tests failed, bump the
+				 * inode number (just in case).
+				 */
+				agino++;
+				icount = 0;
+			}
+			/*
+			 * In any case, increment to the next record.
+			 */
+			if (!error)
+				error = xfs_inobt_increment(cur, 0, &tmp);
+		} else {
+			/*
+			 * Start of ag.  Lookup the first inode chunk.
+			 */
+			error = xfs_inobt_lookup_ge(cur, 0, 0, 0, &tmp);
+			icount = 0;
+		}
+		/*
+		 * Loop through inode btree records in this ag,
+		 * until we run out of inodes or space in the buffer.
+		 */
+		while (irbp < irbufend && icount < ubcount) {
+			/*
+			 * Loop as long as we're unable to read the
+			 * inode btree.
+			 */
+			while (error) {
+				agino += XFS_INODES_PER_CHUNK;
+				if (XFS_AGINO_TO_AGBNO(mp, agino) >=
+						INT_GET(agi->agi_length, ARCH_CONVERT))
+					break;
+				error = xfs_inobt_lookup_ge(cur, agino, 0, 0,
+							    &tmp);
+			}
+			/*
+			 * If ran off the end of the ag either with an error,
+			 * or the normal way, set end and stop collecting.
+			 */
+			if (error ||
+			    (error = xfs_inobt_get_rec(cur, &gino, &gcnt,
+				    &gfree, &i, ARCH_NOCONVERT)) ||
+			    i == 0) {
+				end_of_ag = 1;
+				break;
+			}
+			/*
+			 * If this chunk has any allocated inodes, save it.
+			 */
+			if (gcnt < XFS_INODES_PER_CHUNK) {
+				INT_SET(irbp->ir_startino, ARCH_CONVERT, gino);
+				INT_SET(irbp->ir_freecount, ARCH_CONVERT, gcnt);
+				INT_SET(irbp->ir_free, ARCH_CONVERT, gfree);
+				irbp++;
+				icount += XFS_INODES_PER_CHUNK - gcnt;
+			}
+			/*
+			 * Set agino to after this chunk and bump the cursor.
+			 */
+			agino = gino + XFS_INODES_PER_CHUNK;
+			error = xfs_inobt_increment(cur, 0, &tmp);
+		}
+		/*
+		 * Drop the btree buffers and the agi buffer.
+		 * We can't hold any of the locks these represent
+		 * when calling iget.
+		 */
+		xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR);
+		xfs_buf_relse(agbp);
+		/*
+		 * Now format all the good inodes into the user's buffer.
+		 */
+		irbufend = irbp;
+		for (irbp = irbuf;
+		     irbp < irbufend && ubleft >= statstruct_size; irbp++) {
+			/*
+			 * Read-ahead the next chunk's worth of inodes.
+			 */
+			if (&irbp[1] < irbufend) {
+				/*
+				 * Loop over all clusters in the next chunk.
+				 * Do a readahead if there are any allocated
+				 * inodes in that cluster.
+				 */
+				for (agbno = XFS_AGINO_TO_AGBNO(mp,
+							INT_GET(irbp[1].ir_startino, ARCH_CONVERT)),
+				     chunkidx = 0;
+				     chunkidx < XFS_INODES_PER_CHUNK;
+				     chunkidx += nicluster,
+				     agbno += nbcluster) {
+					if (XFS_INOBT_MASKN(chunkidx,
+							    nicluster) &
+					    ~(INT_GET(irbp[1].ir_free, ARCH_CONVERT)))
+						xfs_btree_reada_bufs(mp, agno,
+							agbno, nbcluster);
+				}
+			}
+			/*
+			 * Now process this chunk of inodes.
+			 */
+			for (agino = INT_GET(irbp->ir_startino, ARCH_CONVERT), chunkidx = 0, clustidx = 0;
+			     ubleft > 0 &&
+				INT_GET(irbp->ir_freecount, ARCH_CONVERT) < XFS_INODES_PER_CHUNK;
+			     chunkidx++, clustidx++, agino++) {
+				ASSERT(chunkidx < XFS_INODES_PER_CHUNK);
+				/*
+				 * Recompute agbno if this is the
+				 * first inode of the cluster.
+				 *
+				 * Careful with clustidx.   There can be
+				 * multple clusters per chunk, a single
+				 * cluster per chunk or a cluster that has
+				 * inodes represented from several different
+				 * chunks (if blocksize is large).
+				 *
+				 * Because of this, the starting clustidx is
+				 * initialized to zero in this loop but must
+				 * later be reset after reading in the cluster
+				 * buffer.
+				 */
+				if ((chunkidx & (nicluster - 1)) == 0) {
+					agbno = XFS_AGINO_TO_AGBNO(mp,
+							INT_GET(irbp->ir_startino, ARCH_CONVERT)) +
+						((chunkidx & nimask) >>
+						 mp->m_sb.sb_inopblog);
+
+					if (flags & BULKSTAT_FG_QUICK) {
+						ino = XFS_AGINO_TO_INO(mp, agno,
+								       agino);
+						bno = XFS_AGB_TO_DADDR(mp, agno,
+								       agbno);
+
+						/*
+						 * Get the inode cluster buffer
+						 */
+						ASSERT(xfs_inode_zone != NULL);
+						ip = kmem_zone_zalloc(xfs_inode_zone,
+								      KM_SLEEP);
+						ip->i_ino = ino;
+						ip->i_mount = mp;
+						if (bp)
+							xfs_buf_relse(bp);
+						error = xfs_itobp(mp, NULL, ip,
+								  &dip, &bp, bno);
+						if (!error)
+							clustidx = ip->i_boffset / mp->m_sb.sb_inodesize;
+						kmem_zone_free(xfs_inode_zone, ip);
+						if (XFS_TEST_ERROR(error != 0,
+								   mp, XFS_ERRTAG_BULKSTAT_READ_CHUNK,
+								   XFS_RANDOM_BULKSTAT_READ_CHUNK)) {
+							bp = NULL;
+							break;
+						}
+					}
+				}
+				/*
+				 * Skip if this inode is free.
+				 */
+				if (XFS_INOBT_MASK(chunkidx) & INT_GET(irbp->ir_free, ARCH_CONVERT))
+					continue;
+				/*
+				 * Count used inodes as free so we can tell
+				 * when the chunk is used up.
+				 */
+				INT_MOD(irbp->ir_freecount, ARCH_CONVERT, +1);
+				ino = XFS_AGINO_TO_INO(mp, agno, agino);
+				bno = XFS_AGB_TO_DADDR(mp, agno, agbno);
+				if (flags & BULKSTAT_FG_QUICK) {
+					dip = (xfs_dinode_t *)xfs_buf_offset(bp,
+					      (clustidx << mp->m_sb.sb_inodelog));
+
+					if (INT_GET(dip->di_core.di_magic, ARCH_CONVERT)
+						    != XFS_DINODE_MAGIC
+					    || !XFS_DINODE_GOOD_VERSION(
+						    INT_GET(dip->di_core.di_version, ARCH_CONVERT)))
+						continue;
+				}
+
+				/*
+				 * Get the inode and fill in a single buffer.
+				 * BULKSTAT_FG_QUICK uses dip to fill it in.
+				 * BULKSTAT_FG_IGET uses igets.
+				 * See: xfs_bulkstat_one & xfs_dm_bulkstat_one.
+				 * This is also used to count inodes/blks, etc
+				 * in xfs_qm_quotacheck.
+				 */
+				ubused = statstruct_size;
+				error = formatter(mp, ino, ubufp,
+						ubleft, private_data,
+						bno, &ubused, dip, &fmterror);
+				if (fmterror == BULKSTAT_RV_NOTHING) {
+					if (error == ENOMEM)
+						ubleft = 0;
+					continue;
+				}
+				if (fmterror == BULKSTAT_RV_GIVEUP) {
+					ubleft = 0;
+					ASSERT(error);
+					rval = error;
+					break;
+				}
+				if (ubufp)
+					ubufp += ubused;
+				ubleft -= ubused;
+				ubelem++;
+				lastino = ino;
+			}
+		}
+
+		if (bp)
+			xfs_buf_relse(bp);
+
+		/*
+		 * Set up for the next loop iteration.
+		 */
+		if (ubleft > 0) {
+			if (end_of_ag) {
+				agno++;
+				agino = 0;
+			} else
+				agino = XFS_INO_TO_AGINO(mp, lastino);
+		} else
+			break;
+	}
+	/*
+	 * Done, we're either out of filesystem or space to put the data.
+	 */
+	kmem_free(irbuf, NBPC);
+	if (ubuffer)
+		unuseracc(ubuffer, ubcount * statstruct_size, (B_READ|B_PHYS));
+	*ubcountp = ubelem;
+	if (agno >= mp->m_sb.sb_agcount) {
+		/*
+		 * If we ran out of filesystem, mark lastino as off
+		 * the end of the filesystem, so the next call
+		 * will return immediately.
+		 */
+		*lastinop = (xfs_ino_t)XFS_AGINO_TO_INO(mp, agno, 0);
+		*done = 1;
+	} else
+		*lastinop = (xfs_ino_t)lastino;
+
+	return rval;
+}
+
+/*
+ * Return stat information in bulk (by-inode) for the filesystem.
+ * Special case for non-sequential one inode bulkstat.
+ */
+int					/* error status */
+xfs_bulkstat_single(
+	xfs_mount_t		*mp,	/* mount point for filesystem */
+	xfs_ino_t		*lastinop, /* inode to return */
+	char			__user *buffer, /* buffer with inode stats */
+	int			*done)	/* 1 if there're more stats to get */
+{
+	int			count;	/* count value for bulkstat call */
+	int			error;	/* return value */
+	xfs_ino_t		ino;	/* filesystem inode number */
+	int			res;	/* result from bs1 */
+
+	/*
+	 * note that requesting valid inode numbers which are not allocated
+	 * to inodes will most likely cause xfs_itobp to generate warning
+	 * messages about bad magic numbers. This is ok. The fact that
+	 * the inode isn't actually an inode is handled by the
+	 * error check below. Done this way to make the usual case faster
+	 * at the expense of the error case.
+	 */
+
+	ino = (xfs_ino_t)*lastinop;
+	error = xfs_bulkstat_one(mp, ino, buffer, sizeof(xfs_bstat_t),
+				 NULL, 0, NULL, NULL, &res);
+	if (error) {
+		/*
+		 * Special case way failed, do it the "long" way
+		 * to see if that works.
+		 */
+		(*lastinop)--;
+		count = 1;
+		if (xfs_bulkstat(mp, lastinop, &count, xfs_bulkstat_one,
+				NULL, sizeof(xfs_bstat_t), buffer,
+				BULKSTAT_FG_IGET, done))
+			return error;
+		if (count == 0 || (xfs_ino_t)*lastinop != ino)
+			return error == EFSCORRUPTED ?
+				XFS_ERROR(EINVAL) : error;
+		else
+			return 0;
+	}
+	*done = 0;
+	return 0;
+}
+
+/*
+ * Return inode number table for the filesystem.
+ */
+int					/* error status */
+xfs_inumbers(
+	xfs_mount_t	*mp,		/* mount point for filesystem */
+	xfs_ino_t	*lastino,	/* last inode returned */
+	int		*count,		/* size of buffer/count returned */
+	xfs_inogrp_t	__user *ubuffer)/* buffer with inode descriptions */
+{
+	xfs_buf_t	*agbp;
+	xfs_agino_t	agino;
+	xfs_agnumber_t	agno;
+	int		bcount;
+	xfs_inogrp_t	*buffer;
+	int		bufidx;
+	xfs_btree_cur_t	*cur;
+	int		error;
+	__int32_t	gcnt;
+	xfs_inofree_t	gfree;
+	xfs_agino_t	gino;
+	int		i;
+	xfs_ino_t	ino;
+	int		left;
+	int		tmp;
+
+	ino = (xfs_ino_t)*lastino;
+	agno = XFS_INO_TO_AGNO(mp, ino);
+	agino = XFS_INO_TO_AGINO(mp, ino);
+	left = *count;
+	*count = 0;
+	bcount = MIN(left, (int)(NBPP / sizeof(*buffer)));
+	buffer = kmem_alloc(bcount * sizeof(*buffer), KM_SLEEP);
+	error = bufidx = 0;
+	cur = NULL;
+	agbp = NULL;
+	while (left > 0 && agno < mp->m_sb.sb_agcount) {
+		if (agbp == NULL) {
+			down_read(&mp->m_peraglock);
+			error = xfs_ialloc_read_agi(mp, NULL, agno, &agbp);
+			up_read(&mp->m_peraglock);
+			if (error) {
+				/*
+				 * If we can't read the AGI of this ag,
+				 * then just skip to the next one.
+				 */
+				ASSERT(cur == NULL);
+				agbp = NULL;
+				agno++;
+				agino = 0;
+				continue;
+			}
+			cur = xfs_btree_init_cursor(mp, NULL, agbp, agno,
+				XFS_BTNUM_INO, (xfs_inode_t *)0, 0);
+			error = xfs_inobt_lookup_ge(cur, agino, 0, 0, &tmp);
+			if (error) {
+				xfs_btree_del_cursor(cur, XFS_BTREE_ERROR);
+				cur = NULL;
+				xfs_buf_relse(agbp);
+				agbp = NULL;
+				/*
+				 * Move up the the last inode in the current
+				 * chunk.  The lookup_ge will always get
+				 * us the first inode in the next chunk.
+				 */
+				agino += XFS_INODES_PER_CHUNK - 1;
+				continue;
+			}
+		}
+		if ((error = xfs_inobt_get_rec(cur, &gino, &gcnt, &gfree,
+			&i, ARCH_NOCONVERT)) ||
+		    i == 0) {
+			xfs_buf_relse(agbp);
+			agbp = NULL;
+			xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR);
+			cur = NULL;
+			agno++;
+			agino = 0;
+			continue;
+		}
+		agino = gino + XFS_INODES_PER_CHUNK - 1;
+		buffer[bufidx].xi_startino = XFS_AGINO_TO_INO(mp, agno, gino);
+		buffer[bufidx].xi_alloccount = XFS_INODES_PER_CHUNK - gcnt;
+		buffer[bufidx].xi_allocmask = ~gfree;
+		bufidx++;
+		left--;
+		if (bufidx == bcount) {
+			if (copy_to_user(ubuffer, buffer,
+					bufidx * sizeof(*buffer))) {
+				error = XFS_ERROR(EFAULT);
+				break;
+			}
+			ubuffer += bufidx;
+			*count += bufidx;
+			bufidx = 0;
+		}
+		if (left) {
+			error = xfs_inobt_increment(cur, 0, &tmp);
+			if (error) {
+				xfs_btree_del_cursor(cur, XFS_BTREE_ERROR);
+				cur = NULL;
+				xfs_buf_relse(agbp);
+				agbp = NULL;
+				/*
+				 * The agino value has already been bumped.
+				 * Just try to skip up to it.
+				 */
+				agino += XFS_INODES_PER_CHUNK;
+				continue;
+			}
+		}
+	}
+	if (!error) {
+		if (bufidx) {
+			if (copy_to_user(ubuffer, buffer,
+					bufidx * sizeof(*buffer)))
+				error = XFS_ERROR(EFAULT);
+			else
+				*count += bufidx;
+		}
+		*lastino = XFS_AGINO_TO_INO(mp, agno, agino);
+	}
+	kmem_free(buffer, bcount * sizeof(*buffer));
+	if (cur)
+		xfs_btree_del_cursor(cur, (error ? XFS_BTREE_ERROR :
+					   XFS_BTREE_NOERROR));
+	if (agbp)
+		xfs_buf_relse(agbp);
+	return error;
+}
diff --git a/fs/xfs/xfs_itable.h b/fs/xfs/xfs_itable.h
new file mode 100644
index 00000000000000..2be9d1805ab237
--- /dev/null
+++ b/fs/xfs/xfs_itable.h
@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2000-2001 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_ITABLE_H__
+#define	__XFS_ITABLE_H__
+
+/*
+ * xfs_bulkstat() is used to fill in xfs_bstat structures as well as dm_stat
+ * structures (by the dmi library). This is a pointer to a formatter function
+ * that will iget the inode and fill in the appropriate structure.
+ * see xfs_bulkstat_one() and xfs_dm_bulkstat_one() in dmapi_xfs.c
+ */
+typedef int (*bulkstat_one_pf)(struct xfs_mount	*mp,
+			       xfs_ino_t	ino,
+			       void		__user *buffer,
+			       int		ubsize,
+			       void		*private_data,
+			       xfs_daddr_t	bno,
+			       int		*ubused,
+			       void		*dip,
+			       int		*stat);
+
+/*
+ * Values for stat return value.
+ */
+#define	BULKSTAT_RV_NOTHING	0
+#define	BULKSTAT_RV_DIDONE	1
+#define	BULKSTAT_RV_GIVEUP	2
+
+/*
+ * Values for bulkstat flag argument.
+ */
+#define	BULKSTAT_FG_IGET	0x1	/* Go through the buffer cache */
+#define	BULKSTAT_FG_QUICK	0x2	/* No iget, walk the dinode cluster */
+#define BULKSTAT_FG_VFSLOCKED	0x4	/* Already have vfs lock */
+
+/*
+ * Return stat information in bulk (by-inode) for the filesystem.
+ */
+int					/* error status */
+xfs_bulkstat(
+	xfs_mount_t	*mp,		/* mount point for filesystem */
+	xfs_ino_t	*lastino,	/* last inode returned */
+	int		*count,		/* size of buffer/count returned */
+	bulkstat_one_pf formatter,	/* func that'd fill a single buf */
+	void		*private_data,	/* private data for formatter */
+	size_t		statstruct_size,/* sizeof struct that we're filling */
+	char		__user *ubuffer,/* buffer with inode stats */
+	int		flags,		/* flag to control access method */
+	int		*done);		/* 1 if there're more stats to get */
+
+int
+xfs_bulkstat_single(
+	xfs_mount_t		*mp,
+	xfs_ino_t		*lastinop,
+	char			__user *buffer,
+	int			*done);
+
+int
+xfs_bulkstat_one(
+	xfs_mount_t		*mp,
+	xfs_ino_t		ino,
+	void			__user *buffer,
+	int			ubsize,
+	void			*private_data,
+	xfs_daddr_t		bno,
+	int			*ubused,
+	void			*dibuff,
+	int			*stat);
+
+int					/* error status */
+xfs_inumbers(
+	xfs_mount_t		*mp,	/* mount point for filesystem */
+	xfs_ino_t		*last,	/* last inode returned */
+	int			*count,	/* size of buffer/count returned */
+	xfs_inogrp_t		__user *buffer);/* buffer with inode info */
+
+#endif	/* __XFS_ITABLE_H__ */
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
new file mode 100644
index 00000000000000..4ee4da88ce47ba
--- /dev/null
+++ b/fs/xfs/xfs_log.c
@@ -0,0 +1,3562 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+/*
+ * High level interface routines for log manager
+ */
+
+#include "xfs.h"
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_ag.h"
+#include "xfs_sb.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_dir.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_error.h"
+#include "xfs_log_priv.h"
+#include "xfs_buf_item.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_log_recover.h"
+#include "xfs_bit.h"
+#include "xfs_rw.h"
+#include "xfs_trans_priv.h"
+
+
+#define xlog_write_adv_cnt(ptr, len, off, bytes) \
+	{ (ptr) += (bytes); \
+	  (len) -= (bytes); \
+	  (off) += (bytes);}
+
+/* Local miscellaneous function prototypes */
+STATIC int	 xlog_bdstrat_cb(struct xfs_buf *);
+STATIC int	 xlog_commit_record(xfs_mount_t *mp, xlog_ticket_t *ticket,
+				    xlog_in_core_t **, xfs_lsn_t *);
+STATIC xlog_t *  xlog_alloc_log(xfs_mount_t	*mp,
+				xfs_buftarg_t	*log_target,
+				xfs_daddr_t	blk_offset,
+				int		num_bblks);
+STATIC int	 xlog_space_left(xlog_t *log, int cycle, int bytes);
+STATIC int	 xlog_sync(xlog_t *log, xlog_in_core_t *iclog);
+STATIC void	 xlog_unalloc_log(xlog_t *log);
+STATIC int	 xlog_write(xfs_mount_t *mp, xfs_log_iovec_t region[],
+			    int nentries, xfs_log_ticket_t tic,
+			    xfs_lsn_t *start_lsn,
+			    xlog_in_core_t **commit_iclog,
+			    uint flags);
+
+/* local state machine functions */
+STATIC void xlog_state_done_syncing(xlog_in_core_t *iclog, int);
+STATIC void xlog_state_do_callback(xlog_t *log,int aborted, xlog_in_core_t *iclog);
+STATIC int  xlog_state_get_iclog_space(xlog_t		*log,
+				       int		len,
+				       xlog_in_core_t	**iclog,
+				       xlog_ticket_t	*ticket,
+				       int		*continued_write,
+				       int		*logoffsetp);
+STATIC void xlog_state_put_ticket(xlog_t	*log,
+				  xlog_ticket_t *tic);
+STATIC int  xlog_state_release_iclog(xlog_t		*log,
+				     xlog_in_core_t	*iclog);
+STATIC void xlog_state_switch_iclogs(xlog_t		*log,
+				     xlog_in_core_t *iclog,
+				     int		eventual_size);
+STATIC int  xlog_state_sync(xlog_t *log, xfs_lsn_t lsn, uint flags);
+STATIC int  xlog_state_sync_all(xlog_t *log, uint flags);
+STATIC void xlog_state_want_sync(xlog_t	*log, xlog_in_core_t *iclog);
+
+/* local functions to manipulate grant head */
+STATIC int  xlog_grant_log_space(xlog_t		*log,
+				 xlog_ticket_t	*xtic);
+STATIC void xlog_grant_push_ail(xfs_mount_t	*mp,
+				int		need_bytes);
+STATIC void xlog_regrant_reserve_log_space(xlog_t	 *log,
+					   xlog_ticket_t *ticket);
+STATIC int xlog_regrant_write_log_space(xlog_t		*log,
+					 xlog_ticket_t  *ticket);
+STATIC void xlog_ungrant_log_space(xlog_t	 *log,
+				   xlog_ticket_t *ticket);
+
+
+/* local ticket functions */
+STATIC void		xlog_state_ticket_alloc(xlog_t *log);
+STATIC xlog_ticket_t	*xlog_ticket_get(xlog_t *log,
+					 int	unit_bytes,
+					 int	count,
+					 char	clientid,
+					 uint	flags);
+STATIC void		xlog_ticket_put(xlog_t *log, xlog_ticket_t *ticket);
+
+/* local debug functions */
+#if defined(DEBUG) && !defined(XLOG_NOLOG)
+STATIC void	xlog_verify_dest_ptr(xlog_t *log, __psint_t ptr);
+STATIC void	xlog_verify_grant_head(xlog_t *log, int equals);
+STATIC void	xlog_verify_iclog(xlog_t *log, xlog_in_core_t *iclog,
+				  int count, boolean_t syncing);
+STATIC void	xlog_verify_tail_lsn(xlog_t *log, xlog_in_core_t *iclog,
+				     xfs_lsn_t tail_lsn);
+#else
+#define xlog_verify_dest_ptr(a,b)
+#define xlog_verify_grant_head(a,b)
+#define xlog_verify_iclog(a,b,c,d)
+#define xlog_verify_tail_lsn(a,b,c)
+#endif
+
+int		xlog_iclogs_empty(xlog_t *log);
+
+#ifdef DEBUG
+int xlog_do_error = 0;
+int xlog_req_num  = 0;
+int xlog_error_mod = 33;
+#endif
+
+#define XLOG_FORCED_SHUTDOWN(log)	(log->l_flags & XLOG_IO_ERROR)
+
+/*
+ * 0 => disable log manager
+ * 1 => enable log manager
+ * 2 => enable log manager and log debugging
+ */
+#if defined(XLOG_NOLOG) || defined(DEBUG)
+int   xlog_debug = 1;
+xfs_buftarg_t *xlog_target;
+#endif
+
+#if defined(XFS_LOG_TRACE)
+
+void
+xlog_trace_loggrant(xlog_t *log, xlog_ticket_t *tic, xfs_caddr_t string)
+{
+	if (! log->l_grant_trace) {
+		log->l_grant_trace = ktrace_alloc(1024, KM_NOSLEEP);
+		if (! log->l_grant_trace)
+			return;
+	}
+
+	ktrace_enter(log->l_grant_trace,
+		     (void *)tic,
+		     (void *)log->l_reserve_headq,
+		     (void *)log->l_write_headq,
+		     (void *)((unsigned long)log->l_grant_reserve_cycle),
+		     (void *)((unsigned long)log->l_grant_reserve_bytes),
+		     (void *)((unsigned long)log->l_grant_write_cycle),
+		     (void *)((unsigned long)log->l_grant_write_bytes),
+		     (void *)((unsigned long)log->l_curr_cycle),
+		     (void *)((unsigned long)log->l_curr_block),
+		     (void *)((unsigned long)CYCLE_LSN(log->l_tail_lsn, ARCH_NOCONVERT)),
+		     (void *)((unsigned long)BLOCK_LSN(log->l_tail_lsn, ARCH_NOCONVERT)),
+		     (void *)string,
+		     (void *)((unsigned long)13),
+		     (void *)((unsigned long)14),
+		     (void *)((unsigned long)15),
+		     (void *)((unsigned long)16));
+}
+
+void
+xlog_trace_iclog(xlog_in_core_t *iclog, uint state)
+{
+	pid_t pid;
+
+	pid = current_pid();
+
+	if (!iclog->ic_trace)
+		iclog->ic_trace = ktrace_alloc(256, KM_SLEEP);
+	ktrace_enter(iclog->ic_trace,
+		     (void *)((unsigned long)state),
+		     (void *)((unsigned long)pid),
+		     (void *)0,
+		     (void *)0,
+		     (void *)0,
+		     (void *)0,
+		     (void *)0,
+		     (void *)0,
+		     (void *)0,
+		     (void *)0,
+		     (void *)0,
+		     (void *)0,
+		     (void *)0,
+		     (void *)0,
+		     (void *)0,
+		     (void *)0);
+}
+
+#else
+#define	xlog_trace_loggrant(log,tic,string)
+#define	xlog_trace_iclog(iclog,state)
+#endif /* XFS_LOG_TRACE */
+
+/*
+ * NOTES:
+ *
+ *	1. currblock field gets updated at startup and after in-core logs
+ *		marked as with WANT_SYNC.
+ */
+
+/*
+ * This routine is called when a user of a log manager ticket is done with
+ * the reservation.  If the ticket was ever used, then a commit record for
+ * the associated transaction is written out as a log operation header with
+ * no data.  The flag XLOG_TIC_INITED is set when the first write occurs with
+ * a given ticket.  If the ticket was one with a permanent reservation, then
+ * a few operations are done differently.  Permanent reservation tickets by
+ * default don't release the reservation.  They just commit the current
+ * transaction with the belief that the reservation is still needed.  A flag
+ * must be passed in before permanent reservations are actually released.
+ * When these type of tickets are not released, they need to be set into
+ * the inited state again.  By doing this, a start record will be written
+ * out when the next write occurs.
+ */
+xfs_lsn_t
+xfs_log_done(xfs_mount_t	*mp,
+	     xfs_log_ticket_t	xtic,
+	     void		**iclog,
+	     uint		flags)
+{
+	xlog_t		*log    = mp->m_log;
+	xlog_ticket_t	*ticket = (xfs_log_ticket_t) xtic;
+	xfs_lsn_t	lsn	= 0;
+
+#if defined(DEBUG) || defined(XLOG_NOLOG)
+	if (!xlog_debug && xlog_target == log->l_targ)
+		return 0;
+#endif
+
+	if (XLOG_FORCED_SHUTDOWN(log) ||
+	    /*
+	     * If nothing was ever written, don't write out commit record.
+	     * If we get an error, just continue and give back the log ticket.
+	     */
+	    (((ticket->t_flags & XLOG_TIC_INITED) == 0) &&
+	     (xlog_commit_record(mp, ticket,
+				 (xlog_in_core_t **)iclog, &lsn)))) {
+		lsn = (xfs_lsn_t) -1;
+		if (ticket->t_flags & XLOG_TIC_PERM_RESERV) {
+			flags |= XFS_LOG_REL_PERM_RESERV;
+		}
+	}
+
+
+	if ((ticket->t_flags & XLOG_TIC_PERM_RESERV) == 0 ||
+	    (flags & XFS_LOG_REL_PERM_RESERV)) {
+		/*
+		 * Release ticket if not permanent reservation or a specifc
+		 * request has been made to release a permanent reservation.
+		 */
+		xlog_ungrant_log_space(log, ticket);
+		xlog_state_put_ticket(log, ticket);
+	} else {
+		xlog_regrant_reserve_log_space(log, ticket);
+	}
+
+	/* If this ticket was a permanent reservation and we aren't
+	 * trying to release it, reset the inited flags; so next time
+	 * we write, a start record will be written out.
+	 */
+	if ((ticket->t_flags & XLOG_TIC_PERM_RESERV) &&
+	    (flags & XFS_LOG_REL_PERM_RESERV) == 0)
+		ticket->t_flags |= XLOG_TIC_INITED;
+
+	return lsn;
+}	/* xfs_log_done */
+
+
+/*
+ * Force the in-core log to disk.  If flags == XFS_LOG_SYNC,
+ *	the force is done synchronously.
+ *
+ * Asynchronous forces are implemented by setting the WANT_SYNC
+ * bit in the appropriate in-core log and then returning.
+ *
+ * Synchronous forces are implemented with a semaphore.  All callers
+ * to force a given lsn to disk will wait on a semaphore attached to the
+ * specific in-core log.  When given in-core log finally completes its
+ * write to disk, that thread will wake up all threads waiting on the
+ * semaphore.
+ */
+int
+xfs_log_force(xfs_mount_t *mp,
+	      xfs_lsn_t	  lsn,
+	      uint	  flags)
+{
+	int	rval;
+	xlog_t *log = mp->m_log;
+
+#if defined(DEBUG) || defined(XLOG_NOLOG)
+	if (!xlog_debug && xlog_target == log->l_targ)
+		return 0;
+#endif
+
+	ASSERT(flags & XFS_LOG_FORCE);
+
+	XFS_STATS_INC(xs_log_force);
+
+	if ((log->l_flags & XLOG_IO_ERROR) == 0) {
+		if (lsn == 0)
+			rval = xlog_state_sync_all(log, flags);
+		else
+			rval = xlog_state_sync(log, lsn, flags);
+	} else {
+		rval = XFS_ERROR(EIO);
+	}
+
+	return rval;
+
+}	/* xfs_log_force */
+
+/*
+ * Attaches a new iclog I/O completion callback routine during
+ * transaction commit.  If the log is in error state, a non-zero
+ * return code is handed back and the caller is responsible for
+ * executing the callback at an appropriate time.
+ */
+int
+xfs_log_notify(xfs_mount_t	  *mp,		/* mount of partition */
+	       void		  *iclog_hndl,	/* iclog to hang callback off */
+	       xfs_log_callback_t *cb)
+{
+	xlog_t *log = mp->m_log;
+	xlog_in_core_t	  *iclog = (xlog_in_core_t *)iclog_hndl;
+	int	abortflg, spl;
+
+#if defined(DEBUG) || defined(XLOG_NOLOG)
+	if (!xlog_debug && xlog_target == log->l_targ)
+		return 0;
+#endif
+	cb->cb_next = NULL;
+	spl = LOG_LOCK(log);
+	abortflg = (iclog->ic_state & XLOG_STATE_IOERROR);
+	if (!abortflg) {
+		ASSERT_ALWAYS((iclog->ic_state == XLOG_STATE_ACTIVE) ||
+			      (iclog->ic_state == XLOG_STATE_WANT_SYNC));
+		cb->cb_next = NULL;
+		*(iclog->ic_callback_tail) = cb;
+		iclog->ic_callback_tail = &(cb->cb_next);
+	}
+	LOG_UNLOCK(log, spl);
+	return abortflg;
+}	/* xfs_log_notify */
+
+int
+xfs_log_release_iclog(xfs_mount_t *mp,
+		      void	  *iclog_hndl)
+{
+	xlog_t *log = mp->m_log;
+	xlog_in_core_t	  *iclog = (xlog_in_core_t *)iclog_hndl;
+
+	if (xlog_state_release_iclog(log, iclog)) {
+		xfs_force_shutdown(mp, XFS_LOG_IO_ERROR);
+		return(EIO);
+	}
+
+	return 0;
+}
+
+/*
+ *  1. Reserve an amount of on-disk log space and return a ticket corresponding
+ *	to the reservation.
+ *  2. Potentially, push buffers at tail of log to disk.
+ *
+ * Each reservation is going to reserve extra space for a log record header.
+ * When writes happen to the on-disk log, we don't subtract the length of the
+ * log record header from any reservation.  By wasting space in each
+ * reservation, we prevent over allocation problems.
+ */
+int
+xfs_log_reserve(xfs_mount_t	 *mp,
+		int		 unit_bytes,
+		int		 cnt,
+		xfs_log_ticket_t *ticket,
+		__uint8_t	 client,
+		uint		 flags)
+{
+	xlog_t		*log = mp->m_log;
+	xlog_ticket_t	*internal_ticket;
+	int		retval;
+
+#if defined(DEBUG) || defined(XLOG_NOLOG)
+	if (!xlog_debug && xlog_target == log->l_targ)
+		return 0;
+#endif
+	retval = 0;
+	ASSERT(client == XFS_TRANSACTION || client == XFS_LOG);
+	ASSERT((flags & XFS_LOG_NOSLEEP) == 0);
+
+	if (XLOG_FORCED_SHUTDOWN(log))
+		return XFS_ERROR(EIO);
+
+	XFS_STATS_INC(xs_try_logspace);
+
+	if (*ticket != NULL) {
+		ASSERT(flags & XFS_LOG_PERM_RESERV);
+		internal_ticket = (xlog_ticket_t *)*ticket;
+		xlog_grant_push_ail(mp, internal_ticket->t_unit_res);
+		retval = xlog_regrant_write_log_space(log, internal_ticket);
+	} else {
+		/* may sleep if need to allocate more tickets */
+		internal_ticket = xlog_ticket_get(log, unit_bytes, cnt,
+						  client, flags);
+		*ticket = internal_ticket;
+		xlog_grant_push_ail(mp,
+				    (internal_ticket->t_unit_res *
+				     internal_ticket->t_cnt));
+		retval = xlog_grant_log_space(log, internal_ticket);
+	}
+
+	return retval;
+}	/* xfs_log_reserve */
+
+
+/*
+ * Mount a log filesystem
+ *
+ * mp		- ubiquitous xfs mount point structure
+ * log_target	- buftarg of on-disk log device
+ * blk_offset	- Start block # where block size is 512 bytes (BBSIZE)
+ * num_bblocks	- Number of BBSIZE blocks in on-disk log
+ *
+ * Return error or zero.
+ */
+int
+xfs_log_mount(xfs_mount_t	*mp,
+	      xfs_buftarg_t	*log_target,
+	      xfs_daddr_t	blk_offset,
+	      int		num_bblks)
+{
+	if (!(mp->m_flags & XFS_MOUNT_NORECOVERY))
+		cmn_err(CE_NOTE, "XFS mounting filesystem %s", mp->m_fsname);
+	else {
+		cmn_err(CE_NOTE,
+			"!Mounting filesystem \"%s\" in no-recovery mode.  Filesystem will be inconsistent.",
+			mp->m_fsname);
+		ASSERT(XFS_MTOVFS(mp)->vfs_flag & VFS_RDONLY);
+	}
+
+	mp->m_log = xlog_alloc_log(mp, log_target, blk_offset, num_bblks);
+
+#if defined(DEBUG) || defined(XLOG_NOLOG)
+	if (!xlog_debug) {
+		cmn_err(CE_NOTE, "log dev: %s", XFS_BUFTARG_NAME(log_target));
+		return 0;
+	}
+#endif
+	/*
+	 * skip log recovery on a norecovery mount.  pretend it all
+	 * just worked.
+	 */
+	if (!(mp->m_flags & XFS_MOUNT_NORECOVERY)) {
+		int	error;
+		vfs_t	*vfsp = XFS_MTOVFS(mp);
+		int	readonly = (vfsp->vfs_flag & VFS_RDONLY);
+
+		if (readonly)
+			vfsp->vfs_flag &= ~VFS_RDONLY;
+
+		error = xlog_recover(mp->m_log, readonly);
+
+		if (readonly)
+			vfsp->vfs_flag |= VFS_RDONLY;
+		if (error) {
+			cmn_err(CE_WARN, "XFS: log mount/recovery failed: error %d", error);
+			xlog_unalloc_log(mp->m_log);
+			return error;
+		}
+	}
+
+	/* Normal transactions can now occur */
+	mp->m_log->l_flags &= ~XLOG_ACTIVE_RECOVERY;
+
+	/* End mounting message in xfs_log_mount_finish */
+	return 0;
+}	/* xfs_log_mount */
+
+/*
+ * Finish the recovery of the file system.  This is separate from
+ * the xfs_log_mount() call, because it depends on the code in
+ * xfs_mountfs() to read in the root and real-time bitmap inodes
+ * between calling xfs_log_mount() and here.
+ *
+ * mp		- ubiquitous xfs mount point structure
+ */
+int
+xfs_log_mount_finish(xfs_mount_t *mp, int mfsi_flags)
+{
+	int	error;
+
+	if (!(mp->m_flags & XFS_MOUNT_NORECOVERY))
+		error = xlog_recover_finish(mp->m_log, mfsi_flags);
+	else {
+		error = 0;
+		ASSERT(XFS_MTOVFS(mp)->vfs_flag & VFS_RDONLY);
+	}
+
+	return error;
+}
+
+/*
+ * Unmount processing for the log.
+ */
+int
+xfs_log_unmount(xfs_mount_t *mp)
+{
+	int		error;
+
+	error = xfs_log_unmount_write(mp);
+	xfs_log_unmount_dealloc(mp);
+	return (error);
+}
+
+/*
+ * Final log writes as part of unmount.
+ *
+ * Mark the filesystem clean as unmount happens.  Note that during relocation
+ * this routine needs to be executed as part of source-bag while the
+ * deallocation must not be done until source-end.
+ */
+
+/*
+ * Unmount record used to have a string "Unmount filesystem--" in the
+ * data section where the "Un" was really a magic number (XLOG_UNMOUNT_TYPE).
+ * We just write the magic number now since that particular field isn't
+ * currently architecture converted and "nUmount" is a bit foo.
+ * As far as I know, there weren't any dependencies on the old behaviour.
+ */
+
+int
+xfs_log_unmount_write(xfs_mount_t *mp)
+{
+	xlog_t		 *log = mp->m_log;
+	xlog_in_core_t	 *iclog;
+#ifdef DEBUG
+	xlog_in_core_t	 *first_iclog;
+#endif
+	xfs_log_iovec_t  reg[1];
+	xfs_log_ticket_t tic = NULL;
+	xfs_lsn_t	 lsn;
+	int		 error;
+	SPLDECL(s);
+
+	/* the data section must be 32 bit size aligned */
+	struct {
+	    __uint16_t magic;
+	    __uint16_t pad1;
+	    __uint32_t pad2; /* may as well make it 64 bits */
+	} magic = { XLOG_UNMOUNT_TYPE, 0, 0 };
+
+#if defined(DEBUG) || defined(XLOG_NOLOG)
+	if (!xlog_debug && xlog_target == log->l_targ)
+		return 0;
+#endif
+
+	/*
+	 * Don't write out unmount record on read-only mounts.
+	 * Or, if we are doing a forced umount (typically because of IO errors).
+	 */
+	if (XFS_MTOVFS(mp)->vfs_flag & VFS_RDONLY)
+		return 0;
+
+	xfs_log_force(mp, 0, XFS_LOG_FORCE|XFS_LOG_SYNC);
+
+#ifdef DEBUG
+	first_iclog = iclog = log->l_iclog;
+	do {
+		if (!(iclog->ic_state & XLOG_STATE_IOERROR)) {
+			ASSERT(iclog->ic_state & XLOG_STATE_ACTIVE);
+			ASSERT(iclog->ic_offset == 0);
+		}
+		iclog = iclog->ic_next;
+	} while (iclog != first_iclog);
+#endif
+	if (! (XLOG_FORCED_SHUTDOWN(log))) {
+		reg[0].i_addr = (void*)&magic;
+		reg[0].i_len  = sizeof(magic);
+
+		error = xfs_log_reserve(mp, 600, 1, &tic, XFS_LOG, 0);
+		if (!error) {
+			/* remove inited flag */
+			((xlog_ticket_t *)tic)->t_flags = 0;
+			error = xlog_write(mp, reg, 1, tic, &lsn,
+					   NULL, XLOG_UNMOUNT_TRANS);
+			/*
+			 * At this point, we're umounting anyway,
+			 * so there's no point in transitioning log state
+			 * to IOERROR. Just continue...
+			 */
+		}
+
+		if (error) {
+			xfs_fs_cmn_err(CE_ALERT, mp,
+				"xfs_log_unmount: unmount record failed");
+		}
+
+
+		s = LOG_LOCK(log);
+		iclog = log->l_iclog;
+		iclog->ic_refcnt++;
+		LOG_UNLOCK(log, s);
+		xlog_state_want_sync(log, iclog);
+		(void) xlog_state_release_iclog(log, iclog);
+
+		s = LOG_LOCK(log);
+		if (!(iclog->ic_state == XLOG_STATE_ACTIVE ||
+		      iclog->ic_state == XLOG_STATE_DIRTY)) {
+			if (!XLOG_FORCED_SHUTDOWN(log)) {
+				sv_wait(&iclog->ic_forcesema, PMEM,
+					&log->l_icloglock, s);
+			} else {
+				LOG_UNLOCK(log, s);
+			}
+		} else {
+			LOG_UNLOCK(log, s);
+		}
+		if (tic)
+			xlog_state_put_ticket(log, tic);
+	} else {
+		/*
+		 * We're already in forced_shutdown mode, couldn't
+		 * even attempt to write out the unmount transaction.
+		 *
+		 * Go through the motions of sync'ing and releasing
+		 * the iclog, even though no I/O will actually happen,
+		 * we need to wait for other log I/O's that may already
+		 * be in progress.  Do this as a separate section of
+		 * code so we'll know if we ever get stuck here that
+		 * we're in this odd situation of trying to unmount
+		 * a file system that went into forced_shutdown as
+		 * the result of an unmount..
+		 */
+		s = LOG_LOCK(log);
+		iclog = log->l_iclog;
+		iclog->ic_refcnt++;
+		LOG_UNLOCK(log, s);
+
+		xlog_state_want_sync(log, iclog);
+		(void) xlog_state_release_iclog(log, iclog);
+
+		s = LOG_LOCK(log);
+
+		if ( ! (   iclog->ic_state == XLOG_STATE_ACTIVE
+			|| iclog->ic_state == XLOG_STATE_DIRTY
+			|| iclog->ic_state == XLOG_STATE_IOERROR) ) {
+
+				sv_wait(&iclog->ic_forcesema, PMEM,
+					&log->l_icloglock, s);
+		} else {
+			LOG_UNLOCK(log, s);
+		}
+	}
+
+	return 0;
+}	/* xfs_log_unmount_write */
+
+/*
+ * Deallocate log structures for unmount/relocation.
+ */
+void
+xfs_log_unmount_dealloc(xfs_mount_t *mp)
+{
+	xlog_unalloc_log(mp->m_log);
+}
+
+/*
+ * Write region vectors to log.  The write happens using the space reservation
+ * of the ticket (tic).  It is not a requirement that all writes for a given
+ * transaction occur with one call to xfs_log_write().
+ */
+int
+xfs_log_write(xfs_mount_t *	mp,
+	      xfs_log_iovec_t	reg[],
+	      int		nentries,
+	      xfs_log_ticket_t	tic,
+	      xfs_lsn_t		*start_lsn)
+{
+	int	error;
+	xlog_t *log = mp->m_log;
+
+#if defined(DEBUG) || defined(XLOG_NOLOG)
+	if (!xlog_debug && xlog_target == log->l_targ) {
+		*start_lsn = 0;
+		return 0;
+	}
+#endif
+	if (XLOG_FORCED_SHUTDOWN(log))
+		return XFS_ERROR(EIO);
+
+	if ((error = xlog_write(mp, reg, nentries, tic, start_lsn, NULL, 0))) {
+		xfs_force_shutdown(mp, XFS_LOG_IO_ERROR);
+	}
+	return (error);
+}	/* xfs_log_write */
+
+
+void
+xfs_log_move_tail(xfs_mount_t	*mp,
+		  xfs_lsn_t	tail_lsn)
+{
+	xlog_ticket_t	*tic;
+	xlog_t		*log = mp->m_log;
+	int		need_bytes, free_bytes, cycle, bytes;
+	SPLDECL(s);
+
+#if defined(DEBUG) || defined(XLOG_NOLOG)
+	if (!xlog_debug && xlog_target == log->l_targ)
+		return;
+#endif
+	/* XXXsup tmp */
+	if (XLOG_FORCED_SHUTDOWN(log))
+		return;
+	ASSERT(!XFS_FORCED_SHUTDOWN(mp));
+
+	if (tail_lsn == 0) {
+		/* needed since sync_lsn is 64 bits */
+		s = LOG_LOCK(log);
+		tail_lsn = log->l_last_sync_lsn;
+		LOG_UNLOCK(log, s);
+	}
+
+	s = GRANT_LOCK(log);
+
+	/* Also an invalid lsn.  1 implies that we aren't passing in a valid
+	 * tail_lsn.
+	 */
+	if (tail_lsn != 1) {
+		log->l_tail_lsn = tail_lsn;
+	}
+
+	if ((tic = log->l_write_headq)) {
+#ifdef DEBUG
+		if (log->l_flags & XLOG_ACTIVE_RECOVERY)
+			panic("Recovery problem");
+#endif
+		cycle = log->l_grant_write_cycle;
+		bytes = log->l_grant_write_bytes;
+		free_bytes = xlog_space_left(log, cycle, bytes);
+		do {
+			ASSERT(tic->t_flags & XLOG_TIC_PERM_RESERV);
+
+			if (free_bytes < tic->t_unit_res && tail_lsn != 1)
+				break;
+			tail_lsn = 0;
+			free_bytes -= tic->t_unit_res;
+			sv_signal(&tic->t_sema);
+			tic = tic->t_next;
+		} while (tic != log->l_write_headq);
+	}
+	if ((tic = log->l_reserve_headq)) {
+#ifdef DEBUG
+		if (log->l_flags & XLOG_ACTIVE_RECOVERY)
+			panic("Recovery problem");
+#endif
+		cycle = log->l_grant_reserve_cycle;
+		bytes = log->l_grant_reserve_bytes;
+		free_bytes = xlog_space_left(log, cycle, bytes);
+		do {
+			if (tic->t_flags & XLOG_TIC_PERM_RESERV)
+				need_bytes = tic->t_unit_res*tic->t_cnt;
+			else
+				need_bytes = tic->t_unit_res;
+			if (free_bytes < need_bytes && tail_lsn != 1)
+				break;
+			tail_lsn = 0;
+			free_bytes -= need_bytes;
+			sv_signal(&tic->t_sema);
+			tic = tic->t_next;
+		} while (tic != log->l_reserve_headq);
+	}
+	GRANT_UNLOCK(log, s);
+}	/* xfs_log_move_tail */
+
+/*
+ * Determine if we have a transaction that has gone to disk
+ * that needs to be covered. Log activity needs to be idle (no AIL and
+ * nothing in the iclogs). And, we need to be in the right state indicating
+ * something has gone out.
+ */
+int
+xfs_log_need_covered(xfs_mount_t *mp)
+{
+	SPLDECL(s);
+	int		needed = 0, gen;
+	xlog_t		*log = mp->m_log;
+	vfs_t		*vfsp = XFS_MTOVFS(mp);
+
+	if (fs_frozen(vfsp) || XFS_FORCED_SHUTDOWN(mp) ||
+	    (vfsp->vfs_flag & VFS_RDONLY))
+		return 0;
+
+	s = LOG_LOCK(log);
+	if (((log->l_covered_state == XLOG_STATE_COVER_NEED) ||
+		(log->l_covered_state == XLOG_STATE_COVER_NEED2))
+			&& !xfs_trans_first_ail(mp, &gen)
+			&& xlog_iclogs_empty(log)) {
+		if (log->l_covered_state == XLOG_STATE_COVER_NEED)
+			log->l_covered_state = XLOG_STATE_COVER_DONE;
+		else {
+			ASSERT(log->l_covered_state == XLOG_STATE_COVER_NEED2);
+			log->l_covered_state = XLOG_STATE_COVER_DONE2;
+		}
+		needed = 1;
+	}
+	LOG_UNLOCK(log, s);
+	return(needed);
+}
+
+/******************************************************************************
+ *
+ *	local routines
+ *
+ ******************************************************************************
+ */
+
+/* xfs_trans_tail_ail returns 0 when there is nothing in the list.
+ * The log manager must keep track of the last LR which was committed
+ * to disk.  The lsn of this LR will become the new tail_lsn whenever
+ * xfs_trans_tail_ail returns 0.  If we don't do this, we run into
+ * the situation where stuff could be written into the log but nothing
+ * was ever in the AIL when asked.  Eventually, we panic since the
+ * tail hits the head.
+ *
+ * We may be holding the log iclog lock upon entering this routine.
+ */
+xfs_lsn_t
+xlog_assign_tail_lsn(xfs_mount_t *mp)
+{
+	xfs_lsn_t tail_lsn;
+	SPLDECL(s);
+	xlog_t	  *log = mp->m_log;
+
+	tail_lsn = xfs_trans_tail_ail(mp);
+	s = GRANT_LOCK(log);
+	if (tail_lsn != 0) {
+		log->l_tail_lsn = tail_lsn;
+	} else {
+		tail_lsn = log->l_tail_lsn = log->l_last_sync_lsn;
+	}
+	GRANT_UNLOCK(log, s);
+
+	return tail_lsn;
+}	/* xlog_assign_tail_lsn */
+
+
+/*
+ * Return the space in the log between the tail and the head.  The head
+ * is passed in the cycle/bytes formal parms.  In the special case where
+ * the reserve head has wrapped passed the tail, this calculation is no
+ * longer valid.  In this case, just return 0 which means there is no space
+ * in the log.  This works for all places where this function is called
+ * with the reserve head.  Of course, if the write head were to ever
+ * wrap the tail, we should blow up.  Rather than catch this case here,
+ * we depend on other ASSERTions in other parts of the code.   XXXmiken
+ *
+ * This code also handles the case where the reservation head is behind
+ * the tail.  The details of this case are described below, but the end
+ * result is that we return the size of the log as the amount of space left.
+ */
+int
+xlog_space_left(xlog_t *log, int cycle, int bytes)
+{
+	int free_bytes;
+	int tail_bytes;
+	int tail_cycle;
+
+	tail_bytes = BBTOB(BLOCK_LSN(log->l_tail_lsn, ARCH_NOCONVERT));
+	tail_cycle = CYCLE_LSN(log->l_tail_lsn, ARCH_NOCONVERT);
+	if ((tail_cycle == cycle) && (bytes >= tail_bytes)) {
+		free_bytes = log->l_logsize - (bytes - tail_bytes);
+	} else if ((tail_cycle + 1) < cycle) {
+		return 0;
+	} else if (tail_cycle < cycle) {
+		ASSERT(tail_cycle == (cycle - 1));
+		free_bytes = tail_bytes - bytes;
+	} else {
+		/*
+		 * The reservation head is behind the tail.
+		 * In this case we just want to return the size of the
+		 * log as the amount of space left.
+		 */
+		xfs_fs_cmn_err(CE_ALERT, log->l_mp,
+			"xlog_space_left: head behind tail\n"
+			"  tail_cycle = %d, tail_bytes = %d\n"
+			"  GH   cycle = %d, GH   bytes = %d",
+			tail_cycle, tail_bytes, cycle, bytes);
+		ASSERT(0);
+		free_bytes = log->l_logsize;
+	}
+	return free_bytes;
+}	/* xlog_space_left */
+
+
+/*
+ * Log function which is called when an io completes.
+ *
+ * The log manager needs its own routine, in order to control what
+ * happens with the buffer after the write completes.
+ */
+void
+xlog_iodone(xfs_buf_t *bp)
+{
+	xlog_in_core_t	*iclog;
+	xlog_t		*l;
+	int		aborted;
+
+	iclog = XFS_BUF_FSPRIVATE(bp, xlog_in_core_t *);
+	ASSERT(XFS_BUF_FSPRIVATE2(bp, unsigned long) == (unsigned long) 2);
+	XFS_BUF_SET_FSPRIVATE2(bp, (unsigned long)1);
+	aborted = 0;
+
+	/*
+	 * Some versions of cpp barf on the recursive definition of
+	 * ic_log -> hic_fields.ic_log and expand ic_log twice when
+	 * it is passed through two macros.  Workaround broken cpp.
+	 */
+	l = iclog->ic_log;
+
+	/*
+	 * Race to shutdown the filesystem if we see an error.
+	 */
+	if (XFS_TEST_ERROR((XFS_BUF_GETERROR(bp)), l->l_mp,
+			XFS_ERRTAG_IODONE_IOERR, XFS_RANDOM_IODONE_IOERR)) {
+		xfs_ioerror_alert("xlog_iodone", l->l_mp, bp, XFS_BUF_ADDR(bp));
+		XFS_BUF_STALE(bp);
+		xfs_force_shutdown(l->l_mp, XFS_LOG_IO_ERROR);
+		/*
+		 * This flag will be propagated to the trans-committed
+		 * callback routines to let them know that the log-commit
+		 * didn't succeed.
+		 */
+		aborted = XFS_LI_ABORTED;
+	} else if (iclog->ic_state & XLOG_STATE_IOERROR) {
+		aborted = XFS_LI_ABORTED;
+	}
+	xlog_state_done_syncing(iclog, aborted);
+	if (!(XFS_BUF_ISASYNC(bp))) {
+		/*
+		 * Corresponding psema() will be done in bwrite().  If we don't
+		 * vsema() here, panic.
+		 */
+		XFS_BUF_V_IODONESEMA(bp);
+	}
+}	/* xlog_iodone */
+
+/*
+ * The bdstrat callback function for log bufs. This gives us a central
+ * place to trap bufs in case we get hit by a log I/O error and need to
+ * shutdown. Actually, in practice, even when we didn't get a log error,
+ * we transition the iclogs to IOERROR state *after* flushing all existing
+ * iclogs to disk. This is because we don't want anymore new transactions to be
+ * started or completed afterwards.
+ */
+STATIC int
+xlog_bdstrat_cb(struct xfs_buf *bp)
+{
+	xlog_in_core_t *iclog;
+
+	iclog = XFS_BUF_FSPRIVATE(bp, xlog_in_core_t *);
+
+	if ((iclog->ic_state & XLOG_STATE_IOERROR) == 0) {
+	  /* note for irix bstrat will need  struct bdevsw passed
+	   * Fix the following macro if the code ever is merged
+	   */
+	    XFS_bdstrat(bp);
+		return 0;
+	}
+
+	xfs_buftrace("XLOG__BDSTRAT IOERROR", bp);
+	XFS_BUF_ERROR(bp, EIO);
+	XFS_BUF_STALE(bp);
+	xfs_biodone(bp);
+	return (XFS_ERROR(EIO));
+
+
+}
+
+/*
+ * Return size of each in-core log record buffer.
+ *
+ * Low memory machines only get 2 16KB buffers.  We don't want to waste
+ * memory here.  However, all other machines get at least 2 32KB buffers.
+ * The number is hard coded because we don't care about the minimum
+ * memory size, just 32MB systems.
+ *
+ * If the filesystem blocksize is too large, we may need to choose a
+ * larger size since the directory code currently logs entire blocks.
+ */
+
+STATIC void
+xlog_get_iclog_buffer_size(xfs_mount_t	*mp,
+			   xlog_t	*log)
+{
+	int size;
+	int xhdrs;
+
+#if defined(DEBUG) || defined(XLOG_NOLOG)
+	/*
+	 * When logbufs == 0, someone has disabled the log from the FSTAB
+	 * file.  This is not a documented feature.  We need to set xlog_debug
+	 * to zero (this deactivates the log) and set xlog_target to the
+	 * appropriate device.  Only one filesystem may be affected as such
+	 * since this is just a performance hack to test what we might be able
+	 * to get if the log were not present.
+	 */
+	if (mp->m_logbufs == 0) {
+		xlog_debug = 0;
+		xlog_target = log->l_targ;
+		log->l_iclog_bufs = XLOG_MIN_ICLOGS;
+	} else
+#endif
+	{
+		/*
+		 * This is the normal path.  If m_logbufs == -1, then the
+		 * admin has chosen to use the system defaults for logbuffers.
+		 */
+		if (mp->m_logbufs == -1) { 
+			if (xfs_physmem <= btoc(128*1024*1024)) { 
+				log->l_iclog_bufs = XLOG_MIN_ICLOGS; 
+			} else if (xfs_physmem <= btoc(400*1024*1024)) { 
+				log->l_iclog_bufs = XLOG_MED_ICLOGS; 
+			} else {
+				/* 256K with 32K bufs */
+				log->l_iclog_bufs = XLOG_MAX_ICLOGS;
+			}
+		} else
+			log->l_iclog_bufs = mp->m_logbufs;
+
+#if defined(DEBUG) || defined(XLOG_NOLOG)
+		/* We are reactivating a filesystem after it was inactive */
+		if (log->l_targ == xlog_target) {
+			xlog_target = NULL;
+			xlog_debug = 1;
+		}
+#endif
+	}
+
+	/*
+	 * Buffer size passed in from mount system call.
+	 */
+	if (mp->m_logbsize != -1) {
+		size = log->l_iclog_size = mp->m_logbsize;
+		log->l_iclog_size_log = 0;
+		while (size != 1) {
+			log->l_iclog_size_log++;
+			size >>= 1;
+		}
+
+		if (XFS_SB_VERSION_HASLOGV2(&mp->m_sb)) {
+			/* # headers = size / 32K
+			 * one header holds cycles from 32K of data
+			 */
+
+			xhdrs = mp->m_logbsize / XLOG_HEADER_CYCLE_SIZE;
+			if (mp->m_logbsize % XLOG_HEADER_CYCLE_SIZE)
+				xhdrs++;
+			log->l_iclog_hsize = xhdrs << BBSHIFT;
+			log->l_iclog_heads = xhdrs;
+		} else {
+			ASSERT(mp->m_logbsize <= XLOG_BIG_RECORD_BSIZE);
+			log->l_iclog_hsize = BBSIZE;
+			log->l_iclog_heads = 1;
+		}
+		return;
+	}
+
+	/*
+	 * Special case machines that have less than 32MB of memory.
+	 * All machines with more memory use 32KB buffers.
+	 */
+	if (xfs_physmem <= btoc(32*1024*1024)) {
+		/* Don't change; min configuration */
+		log->l_iclog_size = XLOG_RECORD_BSIZE;		/* 16k */
+		log->l_iclog_size_log = XLOG_RECORD_BSHIFT;
+	} else {
+		log->l_iclog_size = XLOG_BIG_RECORD_BSIZE;	/* 32k */
+		log->l_iclog_size_log = XLOG_BIG_RECORD_BSHIFT;
+	}
+
+	/* the default log size is 16k or 32k which is one header sector */
+	log->l_iclog_hsize = BBSIZE;
+	log->l_iclog_heads = 1;
+
+	/*
+	 * For 16KB, we use 3 32KB buffers.  For 32KB block sizes, we use
+	 * 4 32KB buffers.  For 64KB block sizes, we use 8 32KB buffers.
+	 */
+	if (mp->m_sb.sb_blocksize >= 16*1024) {
+		log->l_iclog_size = XLOG_BIG_RECORD_BSIZE;
+		log->l_iclog_size_log = XLOG_BIG_RECORD_BSHIFT;
+		if (mp->m_logbufs == -1) {
+			switch (mp->m_sb.sb_blocksize) {
+			    case 16*1024:			/* 16 KB */
+				log->l_iclog_bufs = 3;
+				break;
+			    case 32*1024:			/* 32 KB */
+				log->l_iclog_bufs = 4;
+				break;
+			    case 64*1024:			/* 64 KB */
+				log->l_iclog_bufs = 8;
+				break;
+			    default:
+				xlog_panic("XFS: Invalid blocksize");
+				break;
+			}
+		}
+	}
+}	/* xlog_get_iclog_buffer_size */
+
+
+/*
+ * This routine initializes some of the log structure for a given mount point.
+ * Its primary purpose is to fill in enough, so recovery can occur.  However,
+ * some other stuff may be filled in too.
+ */
+STATIC xlog_t *
+xlog_alloc_log(xfs_mount_t	*mp,
+	       xfs_buftarg_t	*log_target,
+	       xfs_daddr_t	blk_offset,
+	       int		num_bblks)
+{
+	xlog_t			*log;
+	xlog_rec_header_t	*head;
+	xlog_in_core_t		**iclogp;
+	xlog_in_core_t		*iclog, *prev_iclog=NULL;
+	xfs_buf_t		*bp;
+	int			i;
+	int			iclogsize;
+
+	log = (xlog_t *)kmem_zalloc(sizeof(xlog_t), KM_SLEEP);
+
+	log->l_mp	   = mp;
+	log->l_targ	   = log_target;
+	log->l_logsize     = BBTOB(num_bblks);
+	log->l_logBBstart  = blk_offset;
+	log->l_logBBsize   = num_bblks;
+	log->l_covered_state = XLOG_STATE_COVER_IDLE;
+	log->l_flags	   |= XLOG_ACTIVE_RECOVERY;
+
+	log->l_prev_block  = -1;
+	ASSIGN_ANY_LSN(log->l_tail_lsn, 1, 0, ARCH_NOCONVERT);
+	/* log->l_tail_lsn = 0x100000000LL; cycle = 1; current block = 0 */
+	log->l_last_sync_lsn = log->l_tail_lsn;
+	log->l_curr_cycle  = 1;	    /* 0 is bad since this is initial value */
+	log->l_grant_reserve_cycle = 1;
+	log->l_grant_write_cycle = 1;
+
+	if (XFS_SB_VERSION_HASSECTOR(&mp->m_sb)) {
+		log->l_sectbb_log = mp->m_sb.sb_logsectlog - BBSHIFT;
+		ASSERT(log->l_sectbb_log <= mp->m_sectbb_log);
+		/* for larger sector sizes, must have v2 or external log */
+		ASSERT(log->l_sectbb_log == 0 ||
+			log->l_logBBstart == 0 ||
+			XFS_SB_VERSION_HASLOGV2(&mp->m_sb));
+		ASSERT(mp->m_sb.sb_logsectlog >= BBSHIFT);
+	}
+	log->l_sectbb_mask = (1 << log->l_sectbb_log) - 1;
+
+	xlog_get_iclog_buffer_size(mp, log);
+
+	bp = xfs_buf_get_empty(log->l_iclog_size, mp->m_logdev_targp);
+	XFS_BUF_SET_IODONE_FUNC(bp, xlog_iodone);
+	XFS_BUF_SET_BDSTRAT_FUNC(bp, xlog_bdstrat_cb);
+	XFS_BUF_SET_FSPRIVATE2(bp, (unsigned long)1);
+	ASSERT(XFS_BUF_ISBUSY(bp));
+	ASSERT(XFS_BUF_VALUSEMA(bp) <= 0);
+	log->l_xbuf = bp;
+
+	spinlock_init(&log->l_icloglock, "iclog");
+	spinlock_init(&log->l_grant_lock, "grhead_iclog");
+	initnsema(&log->l_flushsema, 0, "ic-flush");
+	xlog_state_ticket_alloc(log);  /* wait until after icloglock inited */
+
+	/* log record size must be multiple of BBSIZE; see xlog_rec_header_t */
+	ASSERT((XFS_BUF_SIZE(bp) & BBMASK) == 0);
+
+	iclogp = &log->l_iclog;
+	/*
+	 * The amount of memory to allocate for the iclog structure is
+	 * rather funky due to the way the structure is defined.  It is
+	 * done this way so that we can use different sizes for machines
+	 * with different amounts of memory.  See the definition of
+	 * xlog_in_core_t in xfs_log_priv.h for details.
+	 */
+	iclogsize = log->l_iclog_size;
+	ASSERT(log->l_iclog_size >= 4096);
+	for (i=0; i < log->l_iclog_bufs; i++) {
+		*iclogp = (xlog_in_core_t *)
+			  kmem_zalloc(sizeof(xlog_in_core_t), KM_SLEEP);
+		iclog = *iclogp;
+		iclog->hic_data = (xlog_in_core_2_t *)
+			  kmem_zalloc(iclogsize, KM_SLEEP);
+
+		iclog->ic_prev = prev_iclog;
+		prev_iclog = iclog;
+		log->l_iclog_bak[i] = (xfs_caddr_t)&(iclog->ic_header);
+
+		head = &iclog->ic_header;
+		memset(head, 0, sizeof(xlog_rec_header_t));
+		INT_SET(head->h_magicno, ARCH_CONVERT, XLOG_HEADER_MAGIC_NUM);
+		INT_SET(head->h_version, ARCH_CONVERT,
+			XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb) ? 2 : 1);
+		INT_SET(head->h_size, ARCH_CONVERT, log->l_iclog_size);
+		/* new fields */
+		INT_SET(head->h_fmt, ARCH_CONVERT, XLOG_FMT);
+		memcpy(&head->h_fs_uuid, &mp->m_sb.sb_uuid, sizeof(uuid_t));
+
+		bp = xfs_buf_get_empty(log->l_iclog_size, mp->m_logdev_targp);
+		XFS_BUF_SET_IODONE_FUNC(bp, xlog_iodone);
+		XFS_BUF_SET_BDSTRAT_FUNC(bp, xlog_bdstrat_cb);
+		XFS_BUF_SET_FSPRIVATE2(bp, (unsigned long)1);
+		iclog->ic_bp = bp;
+
+		iclog->ic_size = XFS_BUF_SIZE(bp) - log->l_iclog_hsize;
+		iclog->ic_state = XLOG_STATE_ACTIVE;
+		iclog->ic_log = log;
+		iclog->ic_callback_tail = &(iclog->ic_callback);
+		iclog->ic_datap = (char *)iclog->hic_data + log->l_iclog_hsize;
+
+		ASSERT(XFS_BUF_ISBUSY(iclog->ic_bp));
+		ASSERT(XFS_BUF_VALUSEMA(iclog->ic_bp) <= 0);
+		sv_init(&iclog->ic_forcesema, SV_DEFAULT, "iclog-force");
+		sv_init(&iclog->ic_writesema, SV_DEFAULT, "iclog-write");
+
+		iclogp = &iclog->ic_next;
+	}
+	*iclogp = log->l_iclog;			/* complete ring */
+	log->l_iclog->ic_prev = prev_iclog;	/* re-write 1st prev ptr */
+
+	return log;
+}	/* xlog_alloc_log */
+
+
+/*
+ * Write out the commit record of a transaction associated with the given
+ * ticket.  Return the lsn of the commit record.
+ */
+STATIC int
+xlog_commit_record(xfs_mount_t  *mp,
+		   xlog_ticket_t *ticket,
+		   xlog_in_core_t **iclog,
+		   xfs_lsn_t	*commitlsnp)
+{
+	int		error;
+	xfs_log_iovec_t	reg[1];
+
+	reg[0].i_addr = NULL;
+	reg[0].i_len = 0;
+
+	ASSERT_ALWAYS(iclog);
+	if ((error = xlog_write(mp, reg, 1, ticket, commitlsnp,
+			       iclog, XLOG_COMMIT_TRANS))) {
+		xfs_force_shutdown(mp, XFS_LOG_IO_ERROR);
+	}
+	return (error);
+}	/* xlog_commit_record */
+
+
+/*
+ * Push on the buffer cache code if we ever use more than 75% of the on-disk
+ * log space.  This code pushes on the lsn which would supposedly free up
+ * the 25% which we want to leave free.  We may need to adopt a policy which
+ * pushes on an lsn which is further along in the log once we reach the high
+ * water mark.  In this manner, we would be creating a low water mark.
+ */
+void
+xlog_grant_push_ail(xfs_mount_t	*mp,
+		    int		need_bytes)
+{
+    xlog_t	*log = mp->m_log;	/* pointer to the log */
+    xfs_lsn_t	tail_lsn;		/* lsn of the log tail */
+    xfs_lsn_t	threshold_lsn = 0;	/* lsn we'd like to be at */
+    int		free_blocks;		/* free blocks left to write to */
+    int		free_bytes;		/* free bytes left to write to */
+    int		threshold_block;	/* block in lsn we'd like to be at */
+    int		threshold_cycle;	/* lsn cycle we'd like to be at */
+    int		free_threshold;
+    SPLDECL(s);
+
+    ASSERT(BTOBB(need_bytes) < log->l_logBBsize);
+
+    s = GRANT_LOCK(log);
+    free_bytes = xlog_space_left(log,
+				 log->l_grant_reserve_cycle,
+				 log->l_grant_reserve_bytes);
+    tail_lsn = log->l_tail_lsn;
+    free_blocks = BTOBBT(free_bytes);
+
+    /*
+     * Set the threshold for the minimum number of free blocks in the
+     * log to the maximum of what the caller needs, one quarter of the
+     * log, and 256 blocks.
+     */
+    free_threshold = BTOBB(need_bytes);
+    free_threshold = MAX(free_threshold, (log->l_logBBsize >> 2));
+    free_threshold = MAX(free_threshold, 256);
+    if (free_blocks < free_threshold) {
+	threshold_block = BLOCK_LSN(tail_lsn, ARCH_NOCONVERT) + free_threshold;
+	threshold_cycle = CYCLE_LSN(tail_lsn, ARCH_NOCONVERT);
+	if (threshold_block >= log->l_logBBsize) {
+	    threshold_block -= log->l_logBBsize;
+	    threshold_cycle += 1;
+	}
+	ASSIGN_ANY_LSN(threshold_lsn, threshold_cycle,
+		       threshold_block, ARCH_NOCONVERT);
+
+	/* Don't pass in an lsn greater than the lsn of the last
+	 * log record known to be on disk.
+	 */
+	if (XFS_LSN_CMP_ARCH(threshold_lsn, log->l_last_sync_lsn, ARCH_NOCONVERT) > 0)
+	    threshold_lsn = log->l_last_sync_lsn;
+    }
+    GRANT_UNLOCK(log, s);
+
+    /*
+     * Get the transaction layer to kick the dirty buffers out to
+     * disk asynchronously. No point in trying to do this if
+     * the filesystem is shutting down.
+     */
+    if (threshold_lsn &&
+	!XLOG_FORCED_SHUTDOWN(log))
+	    xfs_trans_push_ail(mp, threshold_lsn);
+}	/* xlog_grant_push_ail */
+
+
+/*
+ * Flush out the in-core log (iclog) to the on-disk log in an asynchronous 
+ * fashion.  Previously, we should have moved the current iclog
+ * ptr in the log to point to the next available iclog.  This allows further
+ * write to continue while this code syncs out an iclog ready to go.
+ * Before an in-core log can be written out, the data section must be scanned
+ * to save away the 1st word of each BBSIZE block into the header.  We replace
+ * it with the current cycle count.  Each BBSIZE block is tagged with the
+ * cycle count because there in an implicit assumption that drives will
+ * guarantee that entire 512 byte blocks get written at once.  In other words,
+ * we can't have part of a 512 byte block written and part not written.  By
+ * tagging each block, we will know which blocks are valid when recovering
+ * after an unclean shutdown.
+ *
+ * This routine is single threaded on the iclog.  No other thread can be in
+ * this routine with the same iclog.  Changing contents of iclog can there-
+ * fore be done without grabbing the state machine lock.  Updating the global
+ * log will require grabbing the lock though.
+ *
+ * The entire log manager uses a logical block numbering scheme.  Only
+ * log_sync (and then only bwrite()) know about the fact that the log may
+ * not start with block zero on a given device.  The log block start offset
+ * is added immediately before calling bwrite().
+ */
+
+int
+xlog_sync(xlog_t		*log,
+	  xlog_in_core_t	*iclog)
+{
+	xfs_caddr_t	dptr;		/* pointer to byte sized element */
+	xfs_buf_t	*bp;
+	int		i, ops;
+	uint		count;		/* byte count of bwrite */
+	uint		count_init;	/* initial count before roundup */
+	int		roundoff;       /* roundoff to BB or stripe */
+	int		split = 0;	/* split write into two regions */
+	int		error;
+	SPLDECL(s);
+	int		v2 = XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb);
+
+	XFS_STATS_INC(xs_log_writes);
+	ASSERT(iclog->ic_refcnt == 0);
+
+	/* Add for LR header */
+	count_init = log->l_iclog_hsize + iclog->ic_offset;
+
+	/* Round out the log write size */
+	if (v2 && log->l_mp->m_sb.sb_logsunit > 1) {
+		/* we have a v2 stripe unit to use */
+		count = XLOG_LSUNITTOB(log, XLOG_BTOLSUNIT(log, count_init));
+	} else {
+		count = BBTOB(BTOBB(count_init));
+	}
+	roundoff = count - count_init;
+	ASSERT(roundoff >= 0);
+	ASSERT((v2 && log->l_mp->m_sb.sb_logsunit > 1 && 
+                roundoff < log->l_mp->m_sb.sb_logsunit)
+		|| 
+		(log->l_mp->m_sb.sb_logsunit <= 1 && 
+		 roundoff < BBTOB(1)));
+
+	/* move grant heads by roundoff in sync */
+	s = GRANT_LOCK(log);
+	XLOG_GRANT_ADD_SPACE(log, roundoff, 'w');
+	XLOG_GRANT_ADD_SPACE(log, roundoff, 'r');
+	GRANT_UNLOCK(log, s);
+
+	/* put cycle number in every block */
+	xlog_pack_data(log, iclog, roundoff); 
+
+	/* real byte length */
+	if (v2) {
+		INT_SET(iclog->ic_header.h_len, 
+			ARCH_CONVERT,
+			iclog->ic_offset + roundoff);
+	} else {
+		INT_SET(iclog->ic_header.h_len, ARCH_CONVERT, iclog->ic_offset);
+	}
+
+	/* put ops count in correct order */
+	ops = iclog->ic_header.h_num_logops;
+	INT_SET(iclog->ic_header.h_num_logops, ARCH_CONVERT, ops);
+
+	bp	    = iclog->ic_bp;
+	ASSERT(XFS_BUF_FSPRIVATE2(bp, unsigned long) == (unsigned long)1);
+	XFS_BUF_SET_FSPRIVATE2(bp, (unsigned long)2);
+	XFS_BUF_SET_ADDR(bp, BLOCK_LSN(iclog->ic_header.h_lsn, ARCH_CONVERT));
+
+	XFS_STATS_ADD(xs_log_blocks, BTOBB(count));
+
+	/* Do we need to split this write into 2 parts? */
+	if (XFS_BUF_ADDR(bp) + BTOBB(count) > log->l_logBBsize) {
+		split = count - (BBTOB(log->l_logBBsize - XFS_BUF_ADDR(bp)));
+		count = BBTOB(log->l_logBBsize - XFS_BUF_ADDR(bp));
+		iclog->ic_bwritecnt = 2;	/* split into 2 writes */
+	} else {
+		iclog->ic_bwritecnt = 1;
+	}
+	XFS_BUF_SET_PTR(bp, (xfs_caddr_t) &(iclog->ic_header), count);
+	XFS_BUF_SET_FSPRIVATE(bp, iclog);	/* save for later */
+	XFS_BUF_BUSY(bp);
+	XFS_BUF_ASYNC(bp);
+	/*
+	 * Do a disk write cache flush for the log block.
+	 * This is a bit of a sledgehammer, it would be better
+	 * to use a tag barrier here that just prevents reordering.
+	 * It may not be needed to flush the first split block in the log wrap
+	 * case, but do it anyways to be safe -AK
+	 */
+	if (!(log->l_mp->m_flags & XFS_MOUNT_NOLOGFLUSH))
+		XFS_BUF_FLUSH(bp);
+
+	ASSERT(XFS_BUF_ADDR(bp) <= log->l_logBBsize-1);
+	ASSERT(XFS_BUF_ADDR(bp) + BTOBB(count) <= log->l_logBBsize);
+
+	xlog_verify_iclog(log, iclog, count, B_TRUE);
+
+	/* account for log which doesn't start at block #0 */
+	XFS_BUF_SET_ADDR(bp, XFS_BUF_ADDR(bp) + log->l_logBBstart);
+	/*
+	 * Don't call xfs_bwrite here. We do log-syncs even when the filesystem
+	 * is shutting down.
+	 */
+	XFS_BUF_WRITE(bp);
+
+	if ((error = XFS_bwrite(bp))) {
+		xfs_ioerror_alert("xlog_sync", log->l_mp, bp,
+				  XFS_BUF_ADDR(bp));
+		return (error);
+	}
+	if (split) {
+		bp		= iclog->ic_log->l_xbuf;
+		ASSERT(XFS_BUF_FSPRIVATE2(bp, unsigned long) ==
+							(unsigned long)1);
+		XFS_BUF_SET_FSPRIVATE2(bp, (unsigned long)2);
+		XFS_BUF_SET_ADDR(bp, 0);	     /* logical 0 */
+		XFS_BUF_SET_PTR(bp, (xfs_caddr_t)((__psint_t)&(iclog->ic_header)+
+					    (__psint_t)count), split);
+		XFS_BUF_SET_FSPRIVATE(bp, iclog);
+		XFS_BUF_BUSY(bp);
+		XFS_BUF_ASYNC(bp);
+		if (!(log->l_mp->m_flags & XFS_MOUNT_NOLOGFLUSH))
+			XFS_BUF_FLUSH(bp);
+		dptr = XFS_BUF_PTR(bp);
+		/*
+		 * Bump the cycle numbers at the start of each block
+		 * since this part of the buffer is at the start of
+		 * a new cycle.  Watch out for the header magic number
+		 * case, though.
+		 */
+		for (i=0; i<split; i += BBSIZE) {
+			INT_MOD(*(uint *)dptr, ARCH_CONVERT, +1);
+			if (INT_GET(*(uint *)dptr, ARCH_CONVERT) == XLOG_HEADER_MAGIC_NUM)
+				INT_MOD(*(uint *)dptr, ARCH_CONVERT, +1);
+			dptr += BBSIZE;
+		}
+
+		ASSERT(XFS_BUF_ADDR(bp) <= log->l_logBBsize-1);
+		ASSERT(XFS_BUF_ADDR(bp) + BTOBB(count) <= log->l_logBBsize);
+
+		/* account for internal log which does't start at block #0 */
+		XFS_BUF_SET_ADDR(bp, XFS_BUF_ADDR(bp) + log->l_logBBstart);
+		XFS_BUF_WRITE(bp);
+		if ((error = XFS_bwrite(bp))) {
+			xfs_ioerror_alert("xlog_sync (split)", log->l_mp,
+					  bp, XFS_BUF_ADDR(bp));
+			return (error);
+		}
+	}
+	return (0);
+}	/* xlog_sync */
+
+
+/*
+ * Unallocate a log structure
+ */
+void
+xlog_unalloc_log(xlog_t *log)
+{
+	xlog_in_core_t	*iclog, *next_iclog;
+	xlog_ticket_t	*tic, *next_tic;
+	int		i;
+
+
+	iclog = log->l_iclog;
+	for (i=0; i<log->l_iclog_bufs; i++) {
+		sv_destroy(&iclog->ic_forcesema);
+		sv_destroy(&iclog->ic_writesema);
+		xfs_buf_free(iclog->ic_bp);
+#ifdef XFS_LOG_TRACE
+		if (iclog->ic_trace != NULL) {
+			ktrace_free(iclog->ic_trace);
+		}
+#endif
+		next_iclog = iclog->ic_next;
+		kmem_free(iclog->hic_data, log->l_iclog_size);
+		kmem_free(iclog, sizeof(xlog_in_core_t));
+		iclog = next_iclog;
+	}
+	freesema(&log->l_flushsema);
+	spinlock_destroy(&log->l_icloglock);
+	spinlock_destroy(&log->l_grant_lock);
+
+	/* XXXsup take a look at this again. */
+	if ((log->l_ticket_cnt != log->l_ticket_tcnt)  &&
+	    !XLOG_FORCED_SHUTDOWN(log)) {
+		xfs_fs_cmn_err(CE_WARN, log->l_mp,
+			"xlog_unalloc_log: (cnt: %d, total: %d)",
+			log->l_ticket_cnt, log->l_ticket_tcnt);
+		/* ASSERT(log->l_ticket_cnt == log->l_ticket_tcnt); */
+
+	} else {
+		tic = log->l_unmount_free;
+		while (tic) {
+			next_tic = tic->t_next;
+			kmem_free(tic, NBPP);
+			tic = next_tic;
+		}
+	}
+	xfs_buf_free(log->l_xbuf);
+#ifdef XFS_LOG_TRACE
+	if (log->l_trace != NULL) {
+		ktrace_free(log->l_trace);
+	}
+	if (log->l_grant_trace != NULL) {
+		ktrace_free(log->l_grant_trace);
+	}
+#endif
+	log->l_mp->m_log = NULL;
+	kmem_free(log, sizeof(xlog_t));
+}	/* xlog_unalloc_log */
+
+/*
+ * Update counters atomically now that memcpy is done.
+ */
+/* ARGSUSED */
+static inline void
+xlog_state_finish_copy(xlog_t		*log,
+		       xlog_in_core_t	*iclog,
+		       int		record_cnt,
+		       int		copy_bytes)
+{
+	SPLDECL(s);
+
+	s = LOG_LOCK(log);
+
+	iclog->ic_header.h_num_logops += record_cnt;
+	iclog->ic_offset += copy_bytes;
+
+	LOG_UNLOCK(log, s);
+}	/* xlog_state_finish_copy */
+
+
+
+
+/*
+ * Write some region out to in-core log
+ *
+ * This will be called when writing externally provided regions or when
+ * writing out a commit record for a given transaction.
+ *
+ * General algorithm:
+ *	1. Find total length of this write.  This may include adding to the
+ *		lengths passed in.
+ *	2. Check whether we violate the tickets reservation.
+ *	3. While writing to this iclog
+ *	    A. Reserve as much space in this iclog as can get
+ *	    B. If this is first write, save away start lsn
+ *	    C. While writing this region:
+ *		1. If first write of transaction, write start record
+ *		2. Write log operation header (header per region)
+ *		3. Find out if we can fit entire region into this iclog
+ *		4. Potentially, verify destination memcpy ptr
+ *		5. Memcpy (partial) region
+ *		6. If partial copy, release iclog; otherwise, continue
+ *			copying more regions into current iclog
+ *	4. Mark want sync bit (in simulation mode)
+ *	5. Release iclog for potential flush to on-disk log.
+ *
+ * ERRORS:
+ * 1.	Panic if reservation is overrun.  This should never happen since
+ *	reservation amounts are generated internal to the filesystem.
+ * NOTES:
+ * 1. Tickets are single threaded data structures.
+ * 2. The XLOG_END_TRANS & XLOG_CONTINUE_TRANS flags are passed down to the
+ *	syncing routine.  When a single log_write region needs to span
+ *	multiple in-core logs, the XLOG_CONTINUE_TRANS bit should be set
+ *	on all log operation writes which don't contain the end of the
+ *	region.  The XLOG_END_TRANS bit is used for the in-core log
+ *	operation which contains the end of the continued log_write region.
+ * 3. When xlog_state_get_iclog_space() grabs the rest of the current iclog,
+ *	we don't really know exactly how much space will be used.  As a result,
+ *	we don't update ic_offset until the end when we know exactly how many
+ *	bytes have been written out.
+ */
+int
+xlog_write(xfs_mount_t *	mp,
+	   xfs_log_iovec_t	reg[],
+	   int			nentries,
+	   xfs_log_ticket_t	tic,
+	   xfs_lsn_t		*start_lsn,
+	   xlog_in_core_t	**commit_iclog,
+	   uint			flags)
+{
+    xlog_t	     *log    = mp->m_log;
+    xlog_ticket_t    *ticket = (xlog_ticket_t *)tic;
+    xlog_op_header_t *logop_head;    /* ptr to log operation header */
+    xlog_in_core_t   *iclog;	     /* ptr to current in-core log */
+    __psint_t	     ptr;	     /* copy address into data region */
+    int		     len;	     /* # xlog_write() bytes 2 still copy */
+    int		     index;	     /* region index currently copying */
+    int		     log_offset;     /* offset (from 0) into data region */
+    int		     start_rec_copy; /* # bytes to copy for start record */
+    int		     partial_copy;   /* did we split a region? */
+    int		     partial_copy_len;/* # bytes copied if split region */
+    int		     need_copy;	     /* # bytes need to memcpy this region */
+    int		     copy_len;	     /* # bytes actually memcpy'ing */
+    int		     copy_off;	     /* # bytes from entry start */
+    int		     contwr;	     /* continued write of in-core log? */
+    int		     error;
+    int		     record_cnt = 0, data_cnt = 0;
+
+    partial_copy_len = partial_copy = 0;
+
+    /* Calculate potential maximum space.  Each region gets its own
+     * xlog_op_header_t and may need to be double word aligned.
+     */
+    len = 0;
+    if (ticket->t_flags & XLOG_TIC_INITED)     /* acct for start rec of xact */
+	len += sizeof(xlog_op_header_t);
+
+    for (index = 0; index < nentries; index++) {
+	len += sizeof(xlog_op_header_t);	    /* each region gets >= 1 */
+	len += reg[index].i_len;
+    }
+    contwr = *start_lsn = 0;
+
+    if (ticket->t_curr_res < len) {
+#ifdef DEBUG
+	xlog_panic(
+		"xfs_log_write: reservation ran out. Need to up reservation");
+#else
+	/* Customer configurable panic */
+	xfs_cmn_err(XFS_PTAG_LOGRES, CE_ALERT, mp,
+		"xfs_log_write: reservation ran out. Need to up reservation");
+	/* If we did not panic, shutdown the filesystem */
+	xfs_force_shutdown(mp, XFS_CORRUPT_INCORE);
+#endif
+    } else
+	ticket->t_curr_res -= len;
+
+    for (index = 0; index < nentries; ) {
+	if ((error = xlog_state_get_iclog_space(log, len, &iclog, ticket,
+					       &contwr, &log_offset)))
+		return (error);
+
+	ASSERT(log_offset <= iclog->ic_size - 1);
+	ptr = (__psint_t) ((char *)iclog->ic_datap+log_offset);
+
+	/* start_lsn is the first lsn written to. That's all we need. */
+	if (! *start_lsn)
+	    *start_lsn = INT_GET(iclog->ic_header.h_lsn, ARCH_CONVERT);
+
+	/* This loop writes out as many regions as can fit in the amount
+	 * of space which was allocated by xlog_state_get_iclog_space().
+	 */
+	while (index < nentries) {
+	    ASSERT(reg[index].i_len % sizeof(__int32_t) == 0);
+	    ASSERT((__psint_t)ptr % sizeof(__int32_t) == 0);
+	    start_rec_copy = 0;
+
+	    /* If first write for transaction, insert start record.
+	     * We can't be trying to commit if we are inited.  We can't
+	     * have any "partial_copy" if we are inited.
+	     */
+	    if (ticket->t_flags & XLOG_TIC_INITED) {
+		logop_head		= (xlog_op_header_t *)ptr;
+		INT_SET(logop_head->oh_tid, ARCH_CONVERT, ticket->t_tid);
+		logop_head->oh_clientid = ticket->t_clientid;
+		INT_ZERO(logop_head->oh_len, ARCH_CONVERT);
+		logop_head->oh_flags    = XLOG_START_TRANS;
+		INT_ZERO(logop_head->oh_res2, ARCH_CONVERT);
+		ticket->t_flags		&= ~XLOG_TIC_INITED;	/* clear bit */
+		record_cnt++;
+
+		start_rec_copy = sizeof(xlog_op_header_t);
+		xlog_write_adv_cnt(ptr, len, log_offset, start_rec_copy);
+	    }
+
+	    /* Copy log operation header directly into data section */
+	    logop_head			= (xlog_op_header_t *)ptr;
+	    INT_SET(logop_head->oh_tid, ARCH_CONVERT, ticket->t_tid);
+	    logop_head->oh_clientid	= ticket->t_clientid;
+	    INT_ZERO(logop_head->oh_res2, ARCH_CONVERT);
+
+	    /* header copied directly */
+	    xlog_write_adv_cnt(ptr, len, log_offset, sizeof(xlog_op_header_t));
+
+	    /* are we copying a commit or unmount record? */
+	    logop_head->oh_flags = flags;
+
+	    /*
+	     * We've seen logs corrupted with bad transaction client
+	     * ids.  This makes sure that XFS doesn't generate them on.
+	     * Turn this into an EIO and shut down the filesystem.
+	     */
+	    switch (logop_head->oh_clientid)  {
+	    case XFS_TRANSACTION:
+	    case XFS_VOLUME:
+	    case XFS_LOG:
+		break;
+	    default:
+		xfs_fs_cmn_err(CE_WARN, mp,
+		    "Bad XFS transaction clientid 0x%x in ticket 0x%p",
+		    logop_head->oh_clientid, tic);
+		return XFS_ERROR(EIO);
+	    }
+
+	    /* Partial write last time? => (partial_copy != 0)
+	     * need_copy is the amount we'd like to copy if everything could
+	     * fit in the current memcpy.
+	     */
+	    need_copy =	reg[index].i_len - partial_copy_len;
+
+	    copy_off = partial_copy_len;
+	    if (need_copy <= iclog->ic_size - log_offset) { /*complete write */
+		INT_SET(logop_head->oh_len, ARCH_CONVERT, copy_len = need_copy);
+		if (partial_copy)
+		    logop_head->oh_flags|= (XLOG_END_TRANS|XLOG_WAS_CONT_TRANS);
+		partial_copy_len = partial_copy = 0;
+	    } else {					    /* partial write */
+		copy_len = iclog->ic_size - log_offset;
+		INT_SET(logop_head->oh_len, ARCH_CONVERT, copy_len);
+		logop_head->oh_flags |= XLOG_CONTINUE_TRANS;
+		if (partial_copy)
+			logop_head->oh_flags |= XLOG_WAS_CONT_TRANS;
+		partial_copy_len += copy_len;
+		partial_copy++;
+		len += sizeof(xlog_op_header_t); /* from splitting of region */
+		/* account for new log op header */
+		ticket->t_curr_res -= sizeof(xlog_op_header_t);
+	    }
+	    xlog_verify_dest_ptr(log, ptr);
+
+	    /* copy region */
+	    ASSERT(copy_len >= 0);
+	    memcpy((xfs_caddr_t)ptr, reg[index].i_addr + copy_off, copy_len);
+	    xlog_write_adv_cnt(ptr, len, log_offset, copy_len);
+
+	    /* make copy_len total bytes copied, including headers */
+	    copy_len += start_rec_copy + sizeof(xlog_op_header_t);
+	    record_cnt++;
+	    data_cnt += contwr ? copy_len : 0;
+	    if (partial_copy) {			/* copied partial region */
+		    /* already marked WANT_SYNC by xlog_state_get_iclog_space */
+		    xlog_state_finish_copy(log, iclog, record_cnt, data_cnt);
+		    record_cnt = data_cnt = 0;
+		    if ((error = xlog_state_release_iclog(log, iclog)))
+			    return (error);
+		    break;			/* don't increment index */
+	    } else {				/* copied entire region */
+		index++;
+		partial_copy_len = partial_copy = 0;
+
+		if (iclog->ic_size - log_offset <= sizeof(xlog_op_header_t)) {
+		    xlog_state_finish_copy(log, iclog, record_cnt, data_cnt);
+		    record_cnt = data_cnt = 0;
+		    xlog_state_want_sync(log, iclog);
+		    if (commit_iclog) {
+			ASSERT(flags & XLOG_COMMIT_TRANS);
+			*commit_iclog = iclog;
+		    } else if ((error = xlog_state_release_iclog(log, iclog)))
+			   return (error);
+		    if (index == nentries)
+			    return 0;		/* we are done */
+		    else
+			    break;
+		}
+	    } /* if (partial_copy) */
+	} /* while (index < nentries) */
+    } /* for (index = 0; index < nentries; ) */
+    ASSERT(len == 0);
+
+    xlog_state_finish_copy(log, iclog, record_cnt, data_cnt);
+    if (commit_iclog) {
+	ASSERT(flags & XLOG_COMMIT_TRANS);
+	*commit_iclog = iclog;
+	return 0;
+    }
+    return (xlog_state_release_iclog(log, iclog));
+}	/* xlog_write */
+
+
+/*****************************************************************************
+ *
+ *		State Machine functions
+ *
+ *****************************************************************************
+ */
+
+/* Clean iclogs starting from the head.  This ordering must be
+ * maintained, so an iclog doesn't become ACTIVE beyond one that
+ * is SYNCING.  This is also required to maintain the notion that we use
+ * a counting semaphore to hold off would be writers to the log when every
+ * iclog is trying to sync to disk.
+ *
+ * State Change: DIRTY -> ACTIVE
+ */
+void
+xlog_state_clean_log(xlog_t *log)
+{
+	xlog_in_core_t	*iclog;
+	int changed = 0;
+
+	iclog = log->l_iclog;
+	do {
+		if (iclog->ic_state == XLOG_STATE_DIRTY) {
+			iclog->ic_state	= XLOG_STATE_ACTIVE;
+			iclog->ic_offset       = 0;
+			iclog->ic_callback	= NULL;   /* don't need to free */
+			/*
+			 * If the number of ops in this iclog indicate it just
+			 * contains the dummy transaction, we can
+			 * change state into IDLE (the second time around).
+			 * Otherwise we should change the state into
+			 * NEED a dummy.
+			 * We don't need to cover the dummy.
+			 */
+			if (!changed &&
+			   (INT_GET(iclog->ic_header.h_num_logops, ARCH_CONVERT) == XLOG_COVER_OPS)) {
+				changed = 1;
+			} else {
+				/*
+				 * We have two dirty iclogs so start over
+				 * This could also be num of ops indicates
+				 * this is not the dummy going out.
+				 */
+				changed = 2;
+			}
+			INT_ZERO(iclog->ic_header.h_num_logops, ARCH_CONVERT);
+			memset(iclog->ic_header.h_cycle_data, 0,
+			      sizeof(iclog->ic_header.h_cycle_data));
+			INT_ZERO(iclog->ic_header.h_lsn, ARCH_CONVERT);
+		} else if (iclog->ic_state == XLOG_STATE_ACTIVE)
+			/* do nothing */;
+		else
+			break;	/* stop cleaning */
+		iclog = iclog->ic_next;
+	} while (iclog != log->l_iclog);
+
+	/* log is locked when we are called */
+	/*
+	 * Change state for the dummy log recording.
+	 * We usually go to NEED. But we go to NEED2 if the changed indicates
+	 * we are done writing the dummy record.
+	 * If we are done with the second dummy recored (DONE2), then
+	 * we go to IDLE.
+	 */
+	if (changed) {
+		switch (log->l_covered_state) {
+		case XLOG_STATE_COVER_IDLE:
+		case XLOG_STATE_COVER_NEED:
+		case XLOG_STATE_COVER_NEED2:
+			log->l_covered_state = XLOG_STATE_COVER_NEED;
+			break;
+
+		case XLOG_STATE_COVER_DONE:
+			if (changed == 1)
+				log->l_covered_state = XLOG_STATE_COVER_NEED2;
+			else
+				log->l_covered_state = XLOG_STATE_COVER_NEED;
+			break;
+
+		case XLOG_STATE_COVER_DONE2:
+			if (changed == 1)
+				log->l_covered_state = XLOG_STATE_COVER_IDLE;
+			else
+				log->l_covered_state = XLOG_STATE_COVER_NEED;
+			break;
+
+		default:
+			ASSERT(0);
+		}
+	}
+}	/* xlog_state_clean_log */
+
+STATIC xfs_lsn_t
+xlog_get_lowest_lsn(
+	xlog_t		*log)
+{
+	xlog_in_core_t  *lsn_log;
+	xfs_lsn_t	lowest_lsn, lsn;
+
+	lsn_log = log->l_iclog;
+	lowest_lsn = 0;
+	do {
+	    if (!(lsn_log->ic_state & (XLOG_STATE_ACTIVE|XLOG_STATE_DIRTY))) {
+		lsn = INT_GET(lsn_log->ic_header.h_lsn, ARCH_CONVERT);
+		if ((lsn && !lowest_lsn) ||
+		    (XFS_LSN_CMP_ARCH(lsn, lowest_lsn, ARCH_NOCONVERT) < 0)) {
+			lowest_lsn = lsn;
+		}
+	    }
+	    lsn_log = lsn_log->ic_next;
+	} while (lsn_log != log->l_iclog);
+	return(lowest_lsn);
+}
+
+
+STATIC void
+xlog_state_do_callback(
+	xlog_t		*log,
+	int		aborted,
+	xlog_in_core_t	*ciclog)
+{
+	xlog_in_core_t	   *iclog;
+	xlog_in_core_t	   *first_iclog;	/* used to know when we've
+						 * processed all iclogs once */
+	xfs_log_callback_t *cb, *cb_next;
+	int		   flushcnt = 0;
+	xfs_lsn_t	   lowest_lsn;
+	int		   ioerrors;	/* counter: iclogs with errors */
+	int		   loopdidcallbacks; /* flag: inner loop did callbacks*/
+	int		   funcdidcallbacks; /* flag: function did callbacks */
+	int		   repeats;	/* for issuing console warnings if
+					 * looping too many times */
+	SPLDECL(s);
+
+	s = LOG_LOCK(log);
+	first_iclog = iclog = log->l_iclog;
+	ioerrors = 0;
+	funcdidcallbacks = 0;
+	repeats = 0;
+
+	do {
+		/*
+		 * Scan all iclogs starting with the one pointed to by the
+		 * log.  Reset this starting point each time the log is
+		 * unlocked (during callbacks).
+		 *
+		 * Keep looping through iclogs until one full pass is made
+		 * without running any callbacks.
+		 */
+		first_iclog = log->l_iclog;
+		iclog = log->l_iclog;
+		loopdidcallbacks = 0;
+		repeats++;
+
+		do {
+
+			/* skip all iclogs in the ACTIVE & DIRTY states */
+			if (iclog->ic_state &
+			    (XLOG_STATE_ACTIVE|XLOG_STATE_DIRTY)) {
+				iclog = iclog->ic_next;
+				continue;
+			}
+
+			/*
+			 * Between marking a filesystem SHUTDOWN and stopping
+			 * the log, we do flush all iclogs to disk (if there
+			 * wasn't a log I/O error). So, we do want things to
+			 * go smoothly in case of just a SHUTDOWN  w/o a
+			 * LOG_IO_ERROR.
+			 */
+			if (!(iclog->ic_state & XLOG_STATE_IOERROR)) {
+				/*
+				 * Can only perform callbacks in order.  Since
+				 * this iclog is not in the DONE_SYNC/
+				 * DO_CALLBACK state, we skip the rest and
+				 * just try to clean up.  If we set our iclog
+				 * to DO_CALLBACK, we will not process it when
+				 * we retry since a previous iclog is in the
+				 * CALLBACK and the state cannot change since
+				 * we are holding the LOG_LOCK.
+				 */
+				if (!(iclog->ic_state &
+					(XLOG_STATE_DONE_SYNC |
+						 XLOG_STATE_DO_CALLBACK))) {
+					if (ciclog && (ciclog->ic_state ==
+							XLOG_STATE_DONE_SYNC)) {
+						ciclog->ic_state = XLOG_STATE_DO_CALLBACK;
+					}
+					break;
+				}
+				/*
+				 * We now have an iclog that is in either the
+				 * DO_CALLBACK or DONE_SYNC states. The other
+				 * states (WANT_SYNC, SYNCING, or CALLBACK were
+				 * caught by the above if and are going to
+				 * clean (i.e. we aren't doing their callbacks)
+				 * see the above if.
+				 */
+
+				/*
+				 * We will do one more check here to see if we
+				 * have chased our tail around.
+				 */
+
+				lowest_lsn = xlog_get_lowest_lsn(log);
+				if (lowest_lsn && (
+					XFS_LSN_CMP_ARCH(
+						lowest_lsn,
+						INT_GET(iclog->ic_header.h_lsn, ARCH_CONVERT),
+						ARCH_NOCONVERT
+					)<0)) {
+					iclog = iclog->ic_next;
+					continue; /* Leave this iclog for
+						   * another thread */
+				}
+
+				iclog->ic_state = XLOG_STATE_CALLBACK;
+
+				LOG_UNLOCK(log, s);
+
+				/* l_last_sync_lsn field protected by
+				 * GRANT_LOCK. Don't worry about iclog's lsn.
+				 * No one else can be here except us.
+				 */
+				s = GRANT_LOCK(log);
+				ASSERT(XFS_LSN_CMP_ARCH(
+						log->l_last_sync_lsn,
+						INT_GET(iclog->ic_header.h_lsn, ARCH_CONVERT),
+						ARCH_NOCONVERT
+					)<=0);
+				log->l_last_sync_lsn = INT_GET(iclog->ic_header.h_lsn, ARCH_CONVERT);
+				GRANT_UNLOCK(log, s);
+
+				/*
+				 * Keep processing entries in the callback list
+				 * until we come around and it is empty.  We
+				 * need to atomically see that the list is
+				 * empty and change the state to DIRTY so that
+				 * we don't miss any more callbacks being added.
+				 */
+				s = LOG_LOCK(log);
+			} else {
+				ioerrors++;
+			}
+			cb = iclog->ic_callback;
+
+			while (cb != 0) {
+				iclog->ic_callback_tail = &(iclog->ic_callback);
+				iclog->ic_callback = NULL;
+				LOG_UNLOCK(log, s);
+
+				/* perform callbacks in the order given */
+				for (; cb != 0; cb = cb_next) {
+					cb_next = cb->cb_next;
+					cb->cb_func(cb->cb_arg, aborted);
+				}
+				s = LOG_LOCK(log);
+				cb = iclog->ic_callback;
+			}
+
+			loopdidcallbacks++;
+			funcdidcallbacks++;
+
+			ASSERT(iclog->ic_callback == 0);
+			if (!(iclog->ic_state & XLOG_STATE_IOERROR))
+				iclog->ic_state = XLOG_STATE_DIRTY;
+
+			/*
+			 * Transition from DIRTY to ACTIVE if applicable.
+			 * NOP if STATE_IOERROR.
+			 */
+			xlog_state_clean_log(log);
+
+			/* wake up threads waiting in xfs_log_force() */
+			sv_broadcast(&iclog->ic_forcesema);
+
+			iclog = iclog->ic_next;
+		} while (first_iclog != iclog);
+		if (repeats && (repeats % 10) == 0) {
+			xfs_fs_cmn_err(CE_WARN, log->l_mp,
+				"xlog_state_do_callback: looping %d", repeats);
+		}
+	} while (!ioerrors && loopdidcallbacks);
+
+	/*
+	 * make one last gasp attempt to see if iclogs are being left in
+	 * limbo..
+	 */
+#ifdef DEBUG
+	if (funcdidcallbacks) {
+		first_iclog = iclog = log->l_iclog;
+		do {
+			ASSERT(iclog->ic_state != XLOG_STATE_DO_CALLBACK);
+			/*
+			 * Terminate the loop if iclogs are found in states
+			 * which will cause other threads to clean up iclogs.
+			 *
+			 * SYNCING - i/o completion will go through logs
+			 * DONE_SYNC - interrupt thread should be waiting for
+			 *              LOG_LOCK
+			 * IOERROR - give up hope all ye who enter here
+			 */
+			if (iclog->ic_state == XLOG_STATE_WANT_SYNC ||
+			    iclog->ic_state == XLOG_STATE_SYNCING ||
+			    iclog->ic_state == XLOG_STATE_DONE_SYNC ||
+			    iclog->ic_state == XLOG_STATE_IOERROR )
+				break;
+			iclog = iclog->ic_next;
+		} while (first_iclog != iclog);
+	}
+#endif
+
+	if (log->l_iclog->ic_state & (XLOG_STATE_ACTIVE|XLOG_STATE_IOERROR)) {
+		flushcnt = log->l_flushcnt;
+		log->l_flushcnt = 0;
+	}
+	LOG_UNLOCK(log, s);
+	while (flushcnt--)
+		vsema(&log->l_flushsema);
+}	/* xlog_state_do_callback */
+
+
+/*
+ * Finish transitioning this iclog to the dirty state.
+ *
+ * Make sure that we completely execute this routine only when this is
+ * the last call to the iclog.  There is a good chance that iclog flushes,
+ * when we reach the end of the physical log, get turned into 2 separate
+ * calls to bwrite.  Hence, one iclog flush could generate two calls to this
+ * routine.  By using the reference count bwritecnt, we guarantee that only
+ * the second completion goes through.
+ *
+ * Callbacks could take time, so they are done outside the scope of the
+ * global state machine log lock.  Assume that the calls to cvsema won't
+ * take a long time.  At least we know it won't sleep.
+ */
+void
+xlog_state_done_syncing(
+	xlog_in_core_t	*iclog,
+	int		aborted)
+{
+	xlog_t		   *log = iclog->ic_log;
+	SPLDECL(s);
+
+	s = LOG_LOCK(log);
+
+	ASSERT(iclog->ic_state == XLOG_STATE_SYNCING ||
+	       iclog->ic_state == XLOG_STATE_IOERROR);
+	ASSERT(iclog->ic_refcnt == 0);
+	ASSERT(iclog->ic_bwritecnt == 1 || iclog->ic_bwritecnt == 2);
+
+
+	/*
+	 * If we got an error, either on the first buffer, or in the case of
+	 * split log writes, on the second, we mark ALL iclogs STATE_IOERROR,
+	 * and none should ever be attempted to be written to disk
+	 * again.
+	 */
+	if (iclog->ic_state != XLOG_STATE_IOERROR) {
+		if (--iclog->ic_bwritecnt == 1) {
+			LOG_UNLOCK(log, s);
+			return;
+		}
+		iclog->ic_state = XLOG_STATE_DONE_SYNC;
+	}
+
+	/*
+	 * Someone could be sleeping prior to writing out the next
+	 * iclog buffer, we wake them all, one will get to do the
+	 * I/O, the others get to wait for the result.
+	 */
+	sv_broadcast(&iclog->ic_writesema);
+	LOG_UNLOCK(log, s);
+	xlog_state_do_callback(log, aborted, iclog);	/* also cleans log */
+}	/* xlog_state_done_syncing */
+
+
+/*
+ * If the head of the in-core log ring is not (ACTIVE or DIRTY), then we must
+ * sleep.  The flush semaphore is set to the number of in-core buffers and
+ * decremented around disk syncing.  Therefore, if all buffers are syncing,
+ * this semaphore will cause new writes to sleep until a sync completes.
+ * Otherwise, this code just does p() followed by v().  This approximates
+ * a sleep/wakeup except we can't race.
+ *
+ * The in-core logs are used in a circular fashion. They are not used
+ * out-of-order even when an iclog past the head is free.
+ *
+ * return:
+ *	* log_offset where xlog_write() can start writing into the in-core
+ *		log's data space.
+ *	* in-core log pointer to which xlog_write() should write.
+ *	* boolean indicating this is a continued write to an in-core log.
+ *		If this is the last write, then the in-core log's offset field
+ *		needs to be incremented, depending on the amount of data which
+ *		is copied.
+ */
+int
+xlog_state_get_iclog_space(xlog_t	  *log,
+			   int		  len,
+			   xlog_in_core_t **iclogp,
+			   xlog_ticket_t  *ticket,
+			   int		  *continued_write,
+			   int		  *logoffsetp)
+{
+	SPLDECL(s);
+	int		  log_offset;
+	xlog_rec_header_t *head;
+	xlog_in_core_t	  *iclog;
+	int		  error;
+
+restart:
+	s = LOG_LOCK(log);
+	if (XLOG_FORCED_SHUTDOWN(log)) {
+		LOG_UNLOCK(log, s);
+		return XFS_ERROR(EIO);
+	}
+
+	iclog = log->l_iclog;
+	if (! (iclog->ic_state == XLOG_STATE_ACTIVE)) {
+		log->l_flushcnt++;
+		LOG_UNLOCK(log, s);
+		xlog_trace_iclog(iclog, XLOG_TRACE_SLEEP_FLUSH);
+		XFS_STATS_INC(xs_log_noiclogs);
+		/* Ensure that log writes happen */
+		psema(&log->l_flushsema, PINOD);
+		goto restart;
+	}
+	ASSERT(iclog->ic_state == XLOG_STATE_ACTIVE);
+	head = &iclog->ic_header;
+
+	iclog->ic_refcnt++;			/* prevents sync */
+	log_offset = iclog->ic_offset;
+
+	/* On the 1st write to an iclog, figure out lsn.  This works
+	 * if iclogs marked XLOG_STATE_WANT_SYNC always write out what they are
+	 * committing to.  If the offset is set, that's how many blocks
+	 * must be written.
+	 */
+	if (log_offset == 0) {
+		ticket->t_curr_res -= log->l_iclog_hsize;
+		INT_SET(head->h_cycle, ARCH_CONVERT, log->l_curr_cycle);
+		ASSIGN_LSN(head->h_lsn, log, ARCH_CONVERT);
+		ASSERT(log->l_curr_block >= 0);
+	}
+
+	/* If there is enough room to write everything, then do it.  Otherwise,
+	 * claim the rest of the region and make sure the XLOG_STATE_WANT_SYNC
+	 * bit is on, so this will get flushed out.  Don't update ic_offset
+	 * until you know exactly how many bytes get copied.  Therefore, wait
+	 * until later to update ic_offset.
+	 *
+	 * xlog_write() algorithm assumes that at least 2 xlog_op_header_t's
+	 * can fit into remaining data section.
+	 */
+	if (iclog->ic_size - iclog->ic_offset < 2*sizeof(xlog_op_header_t)) {
+		xlog_state_switch_iclogs(log, iclog, iclog->ic_size);
+
+		/* If I'm the only one writing to this iclog, sync it to disk */
+		if (iclog->ic_refcnt == 1) {
+			LOG_UNLOCK(log, s);
+			if ((error = xlog_state_release_iclog(log, iclog)))
+				return (error);
+		} else {
+			iclog->ic_refcnt--;
+			LOG_UNLOCK(log, s);
+		}
+		goto restart;
+	}
+
+	/* Do we have enough room to write the full amount in the remainder
+	 * of this iclog?  Or must we continue a write on the next iclog and
+	 * mark this iclog as completely taken?  In the case where we switch
+	 * iclogs (to mark it taken), this particular iclog will release/sync
+	 * to disk in xlog_write().
+	 */
+	if (len <= iclog->ic_size - iclog->ic_offset) {
+		*continued_write = 0;
+		iclog->ic_offset += len;
+	} else {
+		*continued_write = 1;
+		xlog_state_switch_iclogs(log, iclog, iclog->ic_size);
+	}
+	*iclogp = iclog;
+
+	ASSERT(iclog->ic_offset <= iclog->ic_size);
+	LOG_UNLOCK(log, s);
+
+	*logoffsetp = log_offset;
+	return 0;
+}	/* xlog_state_get_iclog_space */
+
+/*
+ * Atomically get the log space required for a log ticket.
+ *
+ * Once a ticket gets put onto the reserveq, it will only return after
+ * the needed reservation is satisfied.
+ */
+STATIC int
+xlog_grant_log_space(xlog_t	   *log,
+		     xlog_ticket_t *tic)
+{
+	int		 free_bytes;
+	int		 need_bytes;
+	SPLDECL(s);
+#ifdef DEBUG
+	xfs_lsn_t	 tail_lsn;
+#endif
+
+
+#ifdef DEBUG
+	if (log->l_flags & XLOG_ACTIVE_RECOVERY)
+		panic("grant Recovery problem");
+#endif
+
+	/* Is there space or do we need to sleep? */
+	s = GRANT_LOCK(log);
+	xlog_trace_loggrant(log, tic, "xlog_grant_log_space: enter");
+
+	/* something is already sleeping; insert new transaction at end */
+	if (log->l_reserve_headq) {
+		XLOG_INS_TICKETQ(log->l_reserve_headq, tic);
+		xlog_trace_loggrant(log, tic,
+				    "xlog_grant_log_space: sleep 1");
+		/*
+		 * Gotta check this before going to sleep, while we're
+		 * holding the grant lock.
+		 */
+		if (XLOG_FORCED_SHUTDOWN(log))
+			goto error_return;
+
+		XFS_STATS_INC(xs_sleep_logspace);
+		sv_wait(&tic->t_sema, PINOD|PLTWAIT, &log->l_grant_lock, s);
+		/*
+		 * If we got an error, and the filesystem is shutting down,
+		 * we'll catch it down below. So just continue...
+		 */
+		xlog_trace_loggrant(log, tic,
+				    "xlog_grant_log_space: wake 1");
+		s = GRANT_LOCK(log);
+	}
+	if (tic->t_flags & XFS_LOG_PERM_RESERV)
+		need_bytes = tic->t_unit_res*tic->t_ocnt;
+	else
+		need_bytes = tic->t_unit_res;
+
+redo:
+	if (XLOG_FORCED_SHUTDOWN(log))
+		goto error_return;
+
+	free_bytes = xlog_space_left(log, log->l_grant_reserve_cycle,
+				     log->l_grant_reserve_bytes);
+	if (free_bytes < need_bytes) {
+		if ((tic->t_flags & XLOG_TIC_IN_Q) == 0)
+			XLOG_INS_TICKETQ(log->l_reserve_headq, tic);
+		xlog_trace_loggrant(log, tic,
+				    "xlog_grant_log_space: sleep 2");
+		XFS_STATS_INC(xs_sleep_logspace);
+		sv_wait(&tic->t_sema, PINOD|PLTWAIT, &log->l_grant_lock, s);
+
+		if (XLOG_FORCED_SHUTDOWN(log)) {
+			s = GRANT_LOCK(log);
+			goto error_return;
+		}
+
+		xlog_trace_loggrant(log, tic,
+				    "xlog_grant_log_space: wake 2");
+		xlog_grant_push_ail(log->l_mp, need_bytes);
+		s = GRANT_LOCK(log);
+		goto redo;
+	} else if (tic->t_flags & XLOG_TIC_IN_Q)
+		XLOG_DEL_TICKETQ(log->l_reserve_headq, tic);
+
+	/* we've got enough space */
+	XLOG_GRANT_ADD_SPACE(log, need_bytes, 'w');
+	XLOG_GRANT_ADD_SPACE(log, need_bytes, 'r');
+#ifdef DEBUG
+	tail_lsn = log->l_tail_lsn;
+	/*
+	 * Check to make sure the grant write head didn't just over lap the
+	 * tail.  If the cycles are the same, we can't be overlapping.
+	 * Otherwise, make sure that the cycles differ by exactly one and
+	 * check the byte count.
+	 */
+	if (CYCLE_LSN(tail_lsn, ARCH_NOCONVERT) != log->l_grant_write_cycle) {
+		ASSERT(log->l_grant_write_cycle-1 == CYCLE_LSN(tail_lsn, ARCH_NOCONVERT));
+		ASSERT(log->l_grant_write_bytes <= BBTOB(BLOCK_LSN(tail_lsn, ARCH_NOCONVERT)));
+	}
+#endif
+	xlog_trace_loggrant(log, tic, "xlog_grant_log_space: exit");
+	xlog_verify_grant_head(log, 1);
+	GRANT_UNLOCK(log, s);
+	return 0;
+
+ error_return:
+	if (tic->t_flags & XLOG_TIC_IN_Q)
+		XLOG_DEL_TICKETQ(log->l_reserve_headq, tic);
+	xlog_trace_loggrant(log, tic, "xlog_grant_log_space: err_ret");
+	/*
+	 * If we are failing, make sure the ticket doesn't have any
+	 * current reservations. We don't want to add this back when
+	 * the ticket/transaction gets cancelled.
+	 */
+	tic->t_curr_res = 0;
+	tic->t_cnt = 0; /* ungrant will give back unit_res * t_cnt. */
+	GRANT_UNLOCK(log, s);
+	return XFS_ERROR(EIO);
+}	/* xlog_grant_log_space */
+
+
+/*
+ * Replenish the byte reservation required by moving the grant write head.
+ *
+ *
+ */
+STATIC int
+xlog_regrant_write_log_space(xlog_t	   *log,
+			     xlog_ticket_t *tic)
+{
+	SPLDECL(s);
+	int		free_bytes, need_bytes;
+	xlog_ticket_t	*ntic;
+#ifdef DEBUG
+	xfs_lsn_t	tail_lsn;
+#endif
+
+	tic->t_curr_res = tic->t_unit_res;
+
+	if (tic->t_cnt > 0)
+		return (0);
+
+#ifdef DEBUG
+	if (log->l_flags & XLOG_ACTIVE_RECOVERY)
+		panic("regrant Recovery problem");
+#endif
+
+	s = GRANT_LOCK(log);
+	xlog_trace_loggrant(log, tic, "xlog_regrant_write_log_space: enter");
+
+	if (XLOG_FORCED_SHUTDOWN(log))
+		goto error_return;
+
+	/* If there are other waiters on the queue then give them a
+	 * chance at logspace before us. Wake up the first waiters,
+	 * if we do not wake up all the waiters then go to sleep waiting
+	 * for more free space, otherwise try to get some space for
+	 * this transaction.
+	 */
+
+	if ((ntic = log->l_write_headq)) {
+		free_bytes = xlog_space_left(log, log->l_grant_write_cycle,
+					     log->l_grant_write_bytes);
+		do {
+			ASSERT(ntic->t_flags & XLOG_TIC_PERM_RESERV);
+
+			if (free_bytes < ntic->t_unit_res)
+				break;
+			free_bytes -= ntic->t_unit_res;
+			sv_signal(&ntic->t_sema);
+			ntic = ntic->t_next;
+		} while (ntic != log->l_write_headq);
+
+		if (ntic != log->l_write_headq) {
+			if ((tic->t_flags & XLOG_TIC_IN_Q) == 0)
+				XLOG_INS_TICKETQ(log->l_write_headq, tic);
+
+			xlog_trace_loggrant(log, tic,
+				    "xlog_regrant_write_log_space: sleep 1");
+			XFS_STATS_INC(xs_sleep_logspace);
+			sv_wait(&tic->t_sema, PINOD|PLTWAIT,
+				&log->l_grant_lock, s);
+
+			/* If we're shutting down, this tic is already
+			 * off the queue */
+			if (XLOG_FORCED_SHUTDOWN(log)) {
+				s = GRANT_LOCK(log);
+				goto error_return;
+			}
+
+			xlog_trace_loggrant(log, tic,
+				    "xlog_regrant_write_log_space: wake 1");
+			xlog_grant_push_ail(log->l_mp, tic->t_unit_res);
+			s = GRANT_LOCK(log);
+		}
+	}
+
+	need_bytes = tic->t_unit_res;
+
+redo:
+	if (XLOG_FORCED_SHUTDOWN(log))
+		goto error_return;
+
+	free_bytes = xlog_space_left(log, log->l_grant_write_cycle,
+				     log->l_grant_write_bytes);
+	if (free_bytes < need_bytes) {
+		if ((tic->t_flags & XLOG_TIC_IN_Q) == 0)
+			XLOG_INS_TICKETQ(log->l_write_headq, tic);
+		XFS_STATS_INC(xs_sleep_logspace);
+		sv_wait(&tic->t_sema, PINOD|PLTWAIT, &log->l_grant_lock, s);
+
+		/* If we're shutting down, this tic is already off the queue */
+		if (XLOG_FORCED_SHUTDOWN(log)) {
+			s = GRANT_LOCK(log);
+			goto error_return;
+		}
+
+		xlog_trace_loggrant(log, tic,
+				    "xlog_regrant_write_log_space: wake 2");
+		xlog_grant_push_ail(log->l_mp, need_bytes);
+		s = GRANT_LOCK(log);
+		goto redo;
+	} else if (tic->t_flags & XLOG_TIC_IN_Q)
+		XLOG_DEL_TICKETQ(log->l_write_headq, tic);
+
+	XLOG_GRANT_ADD_SPACE(log, need_bytes, 'w'); /* we've got enough space */
+#ifdef DEBUG
+	tail_lsn = log->l_tail_lsn;
+	if (CYCLE_LSN(tail_lsn, ARCH_NOCONVERT) != log->l_grant_write_cycle) {
+		ASSERT(log->l_grant_write_cycle-1 == CYCLE_LSN(tail_lsn, ARCH_NOCONVERT));
+		ASSERT(log->l_grant_write_bytes <= BBTOB(BLOCK_LSN(tail_lsn, ARCH_NOCONVERT)));
+	}
+#endif
+
+	xlog_trace_loggrant(log, tic, "xlog_regrant_write_log_space: exit");
+	xlog_verify_grant_head(log, 1);
+	GRANT_UNLOCK(log, s);
+	return (0);
+
+
+ error_return:
+	if (tic->t_flags & XLOG_TIC_IN_Q)
+		XLOG_DEL_TICKETQ(log->l_reserve_headq, tic);
+	xlog_trace_loggrant(log, tic, "xlog_regrant_write_log_space: err_ret");
+	/*
+	 * If we are failing, make sure the ticket doesn't have any
+	 * current reservations. We don't want to add this back when
+	 * the ticket/transaction gets cancelled.
+	 */
+	tic->t_curr_res = 0;
+	tic->t_cnt = 0; /* ungrant will give back unit_res * t_cnt. */
+	GRANT_UNLOCK(log, s);
+	return XFS_ERROR(EIO);
+}	/* xlog_regrant_write_log_space */
+
+
+/* The first cnt-1 times through here we don't need to
+ * move the grant write head because the permanent
+ * reservation has reserved cnt times the unit amount.
+ * Release part of current permanent unit reservation and
+ * reset current reservation to be one units worth.  Also
+ * move grant reservation head forward.
+ */
+STATIC void
+xlog_regrant_reserve_log_space(xlog_t	     *log,
+			       xlog_ticket_t *ticket)
+{
+	SPLDECL(s);
+
+	xlog_trace_loggrant(log, ticket,
+			    "xlog_regrant_reserve_log_space: enter");
+	if (ticket->t_cnt > 0)
+		ticket->t_cnt--;
+
+	s = GRANT_LOCK(log);
+	XLOG_GRANT_SUB_SPACE(log, ticket->t_curr_res, 'w');
+	XLOG_GRANT_SUB_SPACE(log, ticket->t_curr_res, 'r');
+	ticket->t_curr_res = ticket->t_unit_res;
+	xlog_trace_loggrant(log, ticket,
+			    "xlog_regrant_reserve_log_space: sub current res");
+	xlog_verify_grant_head(log, 1);
+
+	/* just return if we still have some of the pre-reserved space */
+	if (ticket->t_cnt > 0) {
+		GRANT_UNLOCK(log, s);
+		return;
+	}
+
+	XLOG_GRANT_ADD_SPACE(log, ticket->t_unit_res, 'r');
+	xlog_trace_loggrant(log, ticket,
+			    "xlog_regrant_reserve_log_space: exit");
+	xlog_verify_grant_head(log, 0);
+	GRANT_UNLOCK(log, s);
+	ticket->t_curr_res = ticket->t_unit_res;
+}	/* xlog_regrant_reserve_log_space */
+
+
+/*
+ * Give back the space left from a reservation.
+ *
+ * All the information we need to make a correct determination of space left
+ * is present.  For non-permanent reservations, things are quite easy.  The
+ * count should have been decremented to zero.  We only need to deal with the
+ * space remaining in the current reservation part of the ticket.  If the
+ * ticket contains a permanent reservation, there may be left over space which
+ * needs to be released.  A count of N means that N-1 refills of the current
+ * reservation can be done before we need to ask for more space.  The first
+ * one goes to fill up the first current reservation.  Once we run out of
+ * space, the count will stay at zero and the only space remaining will be
+ * in the current reservation field.
+ */
+STATIC void
+xlog_ungrant_log_space(xlog_t	     *log,
+		       xlog_ticket_t *ticket)
+{
+	SPLDECL(s);
+
+	if (ticket->t_cnt > 0)
+		ticket->t_cnt--;
+
+	s = GRANT_LOCK(log);
+	xlog_trace_loggrant(log, ticket, "xlog_ungrant_log_space: enter");
+
+	XLOG_GRANT_SUB_SPACE(log, ticket->t_curr_res, 'w');
+	XLOG_GRANT_SUB_SPACE(log, ticket->t_curr_res, 'r');
+
+	xlog_trace_loggrant(log, ticket, "xlog_ungrant_log_space: sub current");
+
+	/* If this is a permanent reservation ticket, we may be able to free
+	 * up more space based on the remaining count.
+	 */
+	if (ticket->t_cnt > 0) {
+		ASSERT(ticket->t_flags & XLOG_TIC_PERM_RESERV);
+		XLOG_GRANT_SUB_SPACE(log, ticket->t_unit_res*ticket->t_cnt,'w');
+		XLOG_GRANT_SUB_SPACE(log, ticket->t_unit_res*ticket->t_cnt,'r');
+	}
+
+	xlog_trace_loggrant(log, ticket, "xlog_ungrant_log_space: exit");
+	xlog_verify_grant_head(log, 1);
+	GRANT_UNLOCK(log, s);
+	xfs_log_move_tail(log->l_mp, 1);
+}	/* xlog_ungrant_log_space */
+
+
+/*
+ * Atomically put back used ticket.
+ */
+void
+xlog_state_put_ticket(xlog_t	    *log,
+		      xlog_ticket_t *tic)
+{
+	unsigned long s;
+
+	s = LOG_LOCK(log);
+	xlog_ticket_put(log, tic);
+	LOG_UNLOCK(log, s);
+}	/* xlog_state_put_ticket */
+
+/*
+ * Flush iclog to disk if this is the last reference to the given iclog and
+ * the WANT_SYNC bit is set.
+ *
+ * When this function is entered, the iclog is not necessarily in the
+ * WANT_SYNC state.  It may be sitting around waiting to get filled.
+ *
+ *
+ */
+int
+xlog_state_release_iclog(xlog_t		*log,
+			 xlog_in_core_t	*iclog)
+{
+	SPLDECL(s);
+	int		sync = 0;	/* do we sync? */
+
+	xlog_assign_tail_lsn(log->l_mp);
+
+	s = LOG_LOCK(log);
+
+	if (iclog->ic_state & XLOG_STATE_IOERROR) {
+		LOG_UNLOCK(log, s);
+		return XFS_ERROR(EIO);
+	}
+
+	ASSERT(iclog->ic_refcnt > 0);
+	ASSERT(iclog->ic_state == XLOG_STATE_ACTIVE ||
+	       iclog->ic_state == XLOG_STATE_WANT_SYNC);
+
+	if (--iclog->ic_refcnt == 0 &&
+	    iclog->ic_state == XLOG_STATE_WANT_SYNC) {
+		sync++;
+		iclog->ic_state = XLOG_STATE_SYNCING;
+		INT_SET(iclog->ic_header.h_tail_lsn, ARCH_CONVERT, log->l_tail_lsn);
+		xlog_verify_tail_lsn(log, iclog, log->l_tail_lsn);
+		/* cycle incremented when incrementing curr_block */
+	}
+
+	LOG_UNLOCK(log, s);
+
+	/*
+	 * We let the log lock go, so it's possible that we hit a log I/O
+	 * error or someother SHUTDOWN condition that marks the iclog
+	 * as XLOG_STATE_IOERROR before the bwrite. However, we know that
+	 * this iclog has consistent data, so we ignore IOERROR
+	 * flags after this point.
+	 */
+	if (sync) {
+		return xlog_sync(log, iclog);
+	}
+	return (0);
+
+}	/* xlog_state_release_iclog */
+
+
+/*
+ * This routine will mark the current iclog in the ring as WANT_SYNC
+ * and move the current iclog pointer to the next iclog in the ring.
+ * When this routine is called from xlog_state_get_iclog_space(), the
+ * exact size of the iclog has not yet been determined.  All we know is
+ * that every data block.  We have run out of space in this log record.
+ */
+STATIC void
+xlog_state_switch_iclogs(xlog_t		*log,
+			 xlog_in_core_t *iclog,
+			 int		eventual_size)
+{
+	ASSERT(iclog->ic_state == XLOG_STATE_ACTIVE);
+	if (!eventual_size)
+		eventual_size = iclog->ic_offset;
+	iclog->ic_state = XLOG_STATE_WANT_SYNC;
+	INT_SET(iclog->ic_header.h_prev_block, ARCH_CONVERT, log->l_prev_block);
+	log->l_prev_block = log->l_curr_block;
+	log->l_prev_cycle = log->l_curr_cycle;
+
+	/* roll log?: ic_offset changed later */
+	log->l_curr_block += BTOBB(eventual_size)+BTOBB(log->l_iclog_hsize);
+
+	/* Round up to next log-sunit */
+	if (XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb) &&
+	    log->l_mp->m_sb.sb_logsunit > 1) {
+		__uint32_t sunit_bb = BTOBB(log->l_mp->m_sb.sb_logsunit);
+		log->l_curr_block = roundup(log->l_curr_block, sunit_bb);
+	}
+
+	if (log->l_curr_block >= log->l_logBBsize) {
+		log->l_curr_cycle++;
+		if (log->l_curr_cycle == XLOG_HEADER_MAGIC_NUM)
+			log->l_curr_cycle++;
+		log->l_curr_block -= log->l_logBBsize;
+		ASSERT(log->l_curr_block >= 0);
+	}
+	ASSERT(iclog == log->l_iclog);
+	log->l_iclog = iclog->ic_next;
+}	/* xlog_state_switch_iclogs */
+
+
+/*
+ * Write out all data in the in-core log as of this exact moment in time.
+ *
+ * Data may be written to the in-core log during this call.  However,
+ * we don't guarantee this data will be written out.  A change from past
+ * implementation means this routine will *not* write out zero length LRs.
+ *
+ * Basically, we try and perform an intelligent scan of the in-core logs.
+ * If we determine there is no flushable data, we just return.  There is no
+ * flushable data if:
+ *
+ *	1. the current iclog is active and has no data; the previous iclog
+ *		is in the active or dirty state.
+ *	2. the current iclog is drity, and the previous iclog is in the
+ *		active or dirty state.
+ *
+ * We may sleep (call psema) if:
+ *
+ *	1. the current iclog is not in the active nor dirty state.
+ *	2. the current iclog dirty, and the previous iclog is not in the
+ *		active nor dirty state.
+ *	3. the current iclog is active, and there is another thread writing
+ *		to this particular iclog.
+ *	4. a) the current iclog is active and has no other writers
+ *	   b) when we return from flushing out this iclog, it is still
+ *		not in the active nor dirty state.
+ */
+STATIC int
+xlog_state_sync_all(xlog_t *log, uint flags)
+{
+	xlog_in_core_t	*iclog;
+	xfs_lsn_t	lsn;
+	SPLDECL(s);
+
+	s = LOG_LOCK(log);
+
+	iclog = log->l_iclog;
+	if (iclog->ic_state & XLOG_STATE_IOERROR) {
+		LOG_UNLOCK(log, s);
+		return XFS_ERROR(EIO);
+	}
+
+	/* If the head iclog is not active nor dirty, we just attach
+	 * ourselves to the head and go to sleep.
+	 */
+	if (iclog->ic_state == XLOG_STATE_ACTIVE ||
+	    iclog->ic_state == XLOG_STATE_DIRTY) {
+		/*
+		 * If the head is dirty or (active and empty), then
+		 * we need to look at the previous iclog.  If the previous
+		 * iclog is active or dirty we are done.  There is nothing
+		 * to sync out.  Otherwise, we attach ourselves to the
+		 * previous iclog and go to sleep.
+		 */
+		if (iclog->ic_state == XLOG_STATE_DIRTY ||
+		    (iclog->ic_refcnt == 0 && iclog->ic_offset == 0)) {
+			iclog = iclog->ic_prev;
+			if (iclog->ic_state == XLOG_STATE_ACTIVE ||
+			    iclog->ic_state == XLOG_STATE_DIRTY)
+				goto no_sleep;
+			else
+				goto maybe_sleep;
+		} else {
+			if (iclog->ic_refcnt == 0) {
+				/* We are the only one with access to this
+				 * iclog.  Flush it out now.  There should
+				 * be a roundoff of zero to show that someone
+				 * has already taken care of the roundoff from
+				 * the previous sync.
+				 */
+				iclog->ic_refcnt++;
+				lsn = INT_GET(iclog->ic_header.h_lsn, ARCH_CONVERT);
+				xlog_state_switch_iclogs(log, iclog, 0);
+				LOG_UNLOCK(log, s);
+
+				if (xlog_state_release_iclog(log, iclog))
+					return XFS_ERROR(EIO);
+				s = LOG_LOCK(log);
+				if (INT_GET(iclog->ic_header.h_lsn, ARCH_CONVERT) == lsn &&
+				    iclog->ic_state != XLOG_STATE_DIRTY)
+					goto maybe_sleep;
+				else
+					goto no_sleep;
+			} else {
+				/* Someone else is writing to this iclog.
+				 * Use its call to flush out the data.  However,
+				 * the other thread may not force out this LR,
+				 * so we mark it WANT_SYNC.
+				 */
+				xlog_state_switch_iclogs(log, iclog, 0);
+				goto maybe_sleep;
+			}
+		}
+	}
+
+	/* By the time we come around again, the iclog could've been filled
+	 * which would give it another lsn.  If we have a new lsn, just
+	 * return because the relevant data has been flushed.
+	 */
+maybe_sleep:
+	if (flags & XFS_LOG_SYNC) {
+		/*
+		 * We must check if we're shutting down here, before
+		 * we wait, while we're holding the LOG_LOCK.
+		 * Then we check again after waking up, in case our
+		 * sleep was disturbed by a bad news.
+		 */
+		if (iclog->ic_state & XLOG_STATE_IOERROR) {
+			LOG_UNLOCK(log, s);
+			return XFS_ERROR(EIO);
+		}
+		XFS_STATS_INC(xs_log_force_sleep);
+		sv_wait(&iclog->ic_forcesema, PINOD, &log->l_icloglock, s);
+		/*
+		 * No need to grab the log lock here since we're
+		 * only deciding whether or not to return EIO
+		 * and the memory read should be atomic.
+		 */
+		if (iclog->ic_state & XLOG_STATE_IOERROR)
+			return XFS_ERROR(EIO);
+
+	} else {
+
+no_sleep:
+		LOG_UNLOCK(log, s);
+	}
+	return 0;
+}	/* xlog_state_sync_all */
+
+
+/*
+ * Used by code which implements synchronous log forces.
+ *
+ * Find in-core log with lsn.
+ *	If it is in the DIRTY state, just return.
+ *	If it is in the ACTIVE state, move the in-core log into the WANT_SYNC
+ *		state and go to sleep or return.
+ *	If it is in any other state, go to sleep or return.
+ *
+ * If filesystem activity goes to zero, the iclog will get flushed only by
+ * bdflush().
+ */
+int
+xlog_state_sync(xlog_t	  *log,
+		xfs_lsn_t lsn,
+		uint	  flags)
+{
+    xlog_in_core_t	*iclog;
+    int			already_slept = 0;
+    SPLDECL(s);
+
+
+try_again:
+    s = LOG_LOCK(log);
+    iclog = log->l_iclog;
+
+    if (iclog->ic_state & XLOG_STATE_IOERROR) {
+	    LOG_UNLOCK(log, s);
+	    return XFS_ERROR(EIO);
+    }
+
+    do {
+	if (INT_GET(iclog->ic_header.h_lsn, ARCH_CONVERT) != lsn) {
+	    iclog = iclog->ic_next;
+	    continue;
+	}
+
+	if (iclog->ic_state == XLOG_STATE_DIRTY) {
+		LOG_UNLOCK(log, s);
+		return 0;
+	}
+
+	if (iclog->ic_state == XLOG_STATE_ACTIVE) {
+		/*
+		 * We sleep here if we haven't already slept (e.g.
+		 * this is the first time we've looked at the correct
+		 * iclog buf) and the buffer before us is going to
+		 * be sync'ed. The reason for this is that if we
+		 * are doing sync transactions here, by waiting for
+		 * the previous I/O to complete, we can allow a few
+		 * more transactions into this iclog before we close
+		 * it down.
+		 *
+		 * Otherwise, we mark the buffer WANT_SYNC, and bump
+		 * up the refcnt so we can release the log (which drops
+		 * the ref count).  The state switch keeps new transaction
+		 * commits from using this buffer.  When the current commits
+		 * finish writing into the buffer, the refcount will drop to
+		 * zero and the buffer will go out then.
+		 */
+		if (!already_slept &&
+		    (iclog->ic_prev->ic_state & (XLOG_STATE_WANT_SYNC |
+						 XLOG_STATE_SYNCING))) {
+			ASSERT(!(iclog->ic_state & XLOG_STATE_IOERROR));
+			XFS_STATS_INC(xs_log_force_sleep);
+			sv_wait(&iclog->ic_prev->ic_writesema, PSWP,
+				&log->l_icloglock, s);
+			already_slept = 1;
+			goto try_again;
+		} else {
+			iclog->ic_refcnt++;
+			xlog_state_switch_iclogs(log, iclog, 0);
+			LOG_UNLOCK(log, s);
+			if (xlog_state_release_iclog(log, iclog))
+				return XFS_ERROR(EIO);
+			s = LOG_LOCK(log);
+		}
+	}
+
+	if ((flags & XFS_LOG_SYNC) && /* sleep */
+	    !(iclog->ic_state & (XLOG_STATE_ACTIVE | XLOG_STATE_DIRTY))) {
+
+		/*
+		 * Don't wait on the forcesema if we know that we've
+		 * gotten a log write error.
+		 */
+		if (iclog->ic_state & XLOG_STATE_IOERROR) {
+			LOG_UNLOCK(log, s);
+			return XFS_ERROR(EIO);
+		}
+		XFS_STATS_INC(xs_log_force_sleep);
+		sv_wait(&iclog->ic_forcesema, PSWP, &log->l_icloglock, s);
+		/*
+		 * No need to grab the log lock here since we're
+		 * only deciding whether or not to return EIO
+		 * and the memory read should be atomic.
+		 */
+		if (iclog->ic_state & XLOG_STATE_IOERROR)
+			return XFS_ERROR(EIO);
+	} else {		/* just return */
+		LOG_UNLOCK(log, s);
+	}
+	return 0;
+
+    } while (iclog != log->l_iclog);
+
+    LOG_UNLOCK(log, s);
+    return (0);
+}	/* xlog_state_sync */
+
+
+/*
+ * Called when we want to mark the current iclog as being ready to sync to
+ * disk.
+ */
+void
+xlog_state_want_sync(xlog_t *log, xlog_in_core_t *iclog)
+{
+	SPLDECL(s);
+
+	s = LOG_LOCK(log);
+
+	if (iclog->ic_state == XLOG_STATE_ACTIVE) {
+		xlog_state_switch_iclogs(log, iclog, 0);
+	} else {
+		ASSERT(iclog->ic_state &
+			(XLOG_STATE_WANT_SYNC|XLOG_STATE_IOERROR));
+	}
+
+	LOG_UNLOCK(log, s);
+}	/* xlog_state_want_sync */
+
+
+
+/*****************************************************************************
+ *
+ *		TICKET functions
+ *
+ *****************************************************************************
+ */
+
+/*
+ *	Algorithm doesn't take into account page size. ;-(
+ */
+STATIC void
+xlog_state_ticket_alloc(xlog_t *log)
+{
+	xlog_ticket_t	*t_list;
+	xlog_ticket_t	*next;
+	xfs_caddr_t	buf;
+	uint		i = (NBPP / sizeof(xlog_ticket_t)) - 2;
+	SPLDECL(s);
+
+	/*
+	 * The kmem_zalloc may sleep, so we shouldn't be holding the
+	 * global lock.  XXXmiken: may want to use zone allocator.
+	 */
+	buf = (xfs_caddr_t) kmem_zalloc(NBPP, KM_SLEEP);
+
+	s = LOG_LOCK(log);
+
+	/* Attach 1st ticket to Q, so we can keep track of allocated memory */
+	t_list = (xlog_ticket_t *)buf;
+	t_list->t_next = log->l_unmount_free;
+	log->l_unmount_free = t_list++;
+	log->l_ticket_cnt++;
+	log->l_ticket_tcnt++;
+
+	/* Next ticket becomes first ticket attached to ticket free list */
+	if (log->l_freelist != NULL) {
+		ASSERT(log->l_tail != NULL);
+		log->l_tail->t_next = t_list;
+	} else {
+		log->l_freelist = t_list;
+	}
+	log->l_ticket_cnt++;
+	log->l_ticket_tcnt++;
+
+	/* Cycle through rest of alloc'ed memory, building up free Q */
+	for ( ; i > 0; i--) {
+		next = t_list + 1;
+		t_list->t_next = next;
+		t_list = next;
+		log->l_ticket_cnt++;
+		log->l_ticket_tcnt++;
+	}
+	t_list->t_next = NULL;
+	log->l_tail = t_list;
+	LOG_UNLOCK(log, s);
+}	/* xlog_state_ticket_alloc */
+
+
+/*
+ * Put ticket into free list
+ *
+ * Assumption: log lock is held around this call.
+ */
+STATIC void
+xlog_ticket_put(xlog_t		*log,
+		xlog_ticket_t	*ticket)
+{
+	sv_destroy(&ticket->t_sema);
+
+	/*
+	 * Don't think caching will make that much difference.  It's
+	 * more important to make debug easier.
+	 */
+#if 0
+	/* real code will want to use LIFO for caching */
+	ticket->t_next = log->l_freelist;
+	log->l_freelist = ticket;
+	/* no need to clear fields */
+#else
+	/* When we debug, it is easier if tickets are cycled */
+	ticket->t_next     = NULL;
+	if (log->l_tail != 0) {
+		log->l_tail->t_next = ticket;
+	} else {
+		ASSERT(log->l_freelist == 0);
+		log->l_freelist = ticket;
+	}
+	log->l_tail	    = ticket;
+#endif /* DEBUG */
+	log->l_ticket_cnt++;
+}	/* xlog_ticket_put */
+
+
+/*
+ * Grab ticket off freelist or allocation some more
+ */
+xlog_ticket_t *
+xlog_ticket_get(xlog_t		*log,
+		int		unit_bytes,
+		int		cnt,
+		char		client,
+		uint		xflags)
+{
+	xlog_ticket_t	*tic;
+	uint		num_headers;
+	SPLDECL(s);
+
+ alloc:
+	if (log->l_freelist == NULL)
+		xlog_state_ticket_alloc(log);		/* potentially sleep */
+
+	s = LOG_LOCK(log);
+	if (log->l_freelist == NULL) {
+		LOG_UNLOCK(log, s);
+		goto alloc;
+	}
+	tic		= log->l_freelist;
+	log->l_freelist	= tic->t_next;
+	if (log->l_freelist == NULL)
+		log->l_tail = NULL;
+	log->l_ticket_cnt--;
+	LOG_UNLOCK(log, s);
+
+	/*
+	 * Permanent reservations have up to 'cnt'-1 active log operations
+	 * in the log.  A unit in this case is the amount of space for one
+	 * of these log operations.  Normal reservations have a cnt of 1
+	 * and their unit amount is the total amount of space required.
+	 *
+	 * The following lines of code account for non-transaction data
+	 * which occupy space in the on-disk log. 
+	 */
+
+	/* for start-rec */
+	unit_bytes += sizeof(xlog_op_header_t); 
+
+	/* for padding */
+	if (XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb) &&
+		log->l_mp->m_sb.sb_logsunit > 1) {
+		/* log su roundoff */
+		unit_bytes += log->l_mp->m_sb.sb_logsunit;  
+	} else {
+		/* BB roundoff */
+		unit_bytes += BBSIZE;
+        }
+
+	/* for commit-rec */
+	unit_bytes += sizeof(xlog_op_header_t);
+ 
+	/* for LR headers */
+	num_headers = ((unit_bytes + log->l_iclog_size-1) >> log->l_iclog_size_log);
+	unit_bytes += log->l_iclog_hsize * num_headers;
+
+	tic->t_unit_res		= unit_bytes;
+	tic->t_curr_res		= unit_bytes;
+	tic->t_cnt		= cnt;
+	tic->t_ocnt		= cnt;
+	tic->t_tid		= (xlog_tid_t)((__psint_t)tic & 0xffffffff);
+	tic->t_clientid		= client;
+	tic->t_flags		= XLOG_TIC_INITED;
+	if (xflags & XFS_LOG_PERM_RESERV)
+		tic->t_flags |= XLOG_TIC_PERM_RESERV;
+	sv_init(&(tic->t_sema), SV_DEFAULT, "logtick");
+
+	return tic;
+}	/* xlog_ticket_get */
+
+
+/******************************************************************************
+ *
+ *		Log debug routines
+ *
+ ******************************************************************************
+ */
+#if defined(DEBUG) && !defined(XLOG_NOLOG)
+/*
+ * Make sure that the destination ptr is within the valid data region of
+ * one of the iclogs.  This uses backup pointers stored in a different
+ * part of the log in case we trash the log structure.
+ */
+void
+xlog_verify_dest_ptr(xlog_t     *log,
+		     __psint_t  ptr)
+{
+	int i;
+	int good_ptr = 0;
+
+	for (i=0; i < log->l_iclog_bufs; i++) {
+		if (ptr >= (__psint_t)log->l_iclog_bak[i] &&
+		    ptr <= (__psint_t)log->l_iclog_bak[i]+log->l_iclog_size)
+			good_ptr++;
+	}
+	if (! good_ptr)
+		xlog_panic("xlog_verify_dest_ptr: invalid ptr");
+}	/* xlog_verify_dest_ptr */
+
+STATIC void
+xlog_verify_grant_head(xlog_t *log, int equals)
+{
+    if (log->l_grant_reserve_cycle == log->l_grant_write_cycle) {
+	if (equals)
+	    ASSERT(log->l_grant_reserve_bytes >= log->l_grant_write_bytes);
+	else
+	    ASSERT(log->l_grant_reserve_bytes > log->l_grant_write_bytes);
+    } else {
+	ASSERT(log->l_grant_reserve_cycle-1 == log->l_grant_write_cycle);
+	ASSERT(log->l_grant_write_bytes >= log->l_grant_reserve_bytes);
+    }
+}	/* xlog_verify_grant_head */
+
+/* check if it will fit */
+STATIC void
+xlog_verify_tail_lsn(xlog_t	    *log,
+		     xlog_in_core_t *iclog,
+		     xfs_lsn_t	    tail_lsn)
+{
+    int blocks;
+
+    if (CYCLE_LSN(tail_lsn, ARCH_NOCONVERT) == log->l_prev_cycle) {
+	blocks =
+	    log->l_logBBsize - (log->l_prev_block - BLOCK_LSN(tail_lsn, ARCH_NOCONVERT));
+	if (blocks < BTOBB(iclog->ic_offset)+BTOBB(log->l_iclog_hsize))
+	    xlog_panic("xlog_verify_tail_lsn: ran out of log space");
+    } else {
+	ASSERT(CYCLE_LSN(tail_lsn, ARCH_NOCONVERT)+1 == log->l_prev_cycle);
+
+	if (BLOCK_LSN(tail_lsn, ARCH_NOCONVERT) == log->l_prev_block)
+	    xlog_panic("xlog_verify_tail_lsn: tail wrapped");
+
+	blocks = BLOCK_LSN(tail_lsn, ARCH_NOCONVERT) - log->l_prev_block;
+	if (blocks < BTOBB(iclog->ic_offset) + 1)
+	    xlog_panic("xlog_verify_tail_lsn: ran out of log space");
+    }
+}	/* xlog_verify_tail_lsn */
+
+/*
+ * Perform a number of checks on the iclog before writing to disk.
+ *
+ * 1. Make sure the iclogs are still circular
+ * 2. Make sure we have a good magic number
+ * 3. Make sure we don't have magic numbers in the data
+ * 4. Check fields of each log operation header for:
+ *	A. Valid client identifier
+ *	B. tid ptr value falls in valid ptr space (user space code)
+ *	C. Length in log record header is correct according to the
+ *		individual operation headers within record.
+ * 5. When a bwrite will occur within 5 blocks of the front of the physical
+ *	log, check the preceding blocks of the physical log to make sure all
+ *	the cycle numbers agree with the current cycle number.
+ */
+STATIC void
+xlog_verify_iclog(xlog_t	 *log,
+		  xlog_in_core_t *iclog,
+		  int		 count,
+		  boolean_t	 syncing)
+{
+	xlog_op_header_t	*ophead;
+	xlog_in_core_t		*icptr;
+	xlog_in_core_2_t	*xhdr;
+	xfs_caddr_t		ptr;
+	xfs_caddr_t		base_ptr;
+	__psint_t		field_offset;
+	__uint8_t		clientid;
+	int			len, i, j, k, op_len;
+	int			idx;
+	SPLDECL(s);
+
+	/* check validity of iclog pointers */
+	s = LOG_LOCK(log);
+	icptr = log->l_iclog;
+	for (i=0; i < log->l_iclog_bufs; i++) {
+		if (icptr == 0)
+			xlog_panic("xlog_verify_iclog: invalid ptr");
+		icptr = icptr->ic_next;
+	}
+	if (icptr != log->l_iclog)
+		xlog_panic("xlog_verify_iclog: corrupt iclog ring");
+	LOG_UNLOCK(log, s);
+
+	/* check log magic numbers */
+	ptr = (xfs_caddr_t) &(iclog->ic_header);
+	if (INT_GET(*(uint *)ptr, ARCH_CONVERT) != XLOG_HEADER_MAGIC_NUM)
+		xlog_panic("xlog_verify_iclog: invalid magic num");
+
+	for (ptr += BBSIZE; ptr < ((xfs_caddr_t)&(iclog->ic_header))+count;
+	     ptr += BBSIZE) {
+		if (INT_GET(*(uint *)ptr, ARCH_CONVERT) == XLOG_HEADER_MAGIC_NUM)
+			xlog_panic("xlog_verify_iclog: unexpected magic num");
+	}
+
+	/* check fields */
+	len = INT_GET(iclog->ic_header.h_num_logops, ARCH_CONVERT);
+	ptr = iclog->ic_datap;
+	base_ptr = ptr;
+	ophead = (xlog_op_header_t *)ptr;
+	xhdr = (xlog_in_core_2_t *)&iclog->ic_header;
+	for (i = 0; i < len; i++) {
+		ophead = (xlog_op_header_t *)ptr;
+
+		/* clientid is only 1 byte */
+		field_offset = (__psint_t)
+			       ((xfs_caddr_t)&(ophead->oh_clientid) - base_ptr);
+		if (syncing == B_FALSE || (field_offset & 0x1ff)) {
+			clientid = ophead->oh_clientid;
+		} else {
+			idx = BTOBBT((xfs_caddr_t)&(ophead->oh_clientid) - iclog->ic_datap);
+			if (idx >= (XLOG_HEADER_CYCLE_SIZE / BBSIZE)) {
+				j = idx / (XLOG_HEADER_CYCLE_SIZE / BBSIZE);
+				k = idx % (XLOG_HEADER_CYCLE_SIZE / BBSIZE);
+				clientid = GET_CLIENT_ID(xhdr[j].hic_xheader.xh_cycle_data[k], ARCH_CONVERT);
+			} else {
+				clientid = GET_CLIENT_ID(iclog->ic_header.h_cycle_data[idx], ARCH_CONVERT);
+			}
+		}
+		if (clientid != XFS_TRANSACTION && clientid != XFS_LOG)
+			cmn_err(CE_WARN, "xlog_verify_iclog: invalid clientid %d op 0x%p offset 0x%x", clientid, ophead, field_offset);
+
+		/* check length */
+		field_offset = (__psint_t)
+			       ((xfs_caddr_t)&(ophead->oh_len) - base_ptr);
+		if (syncing == B_FALSE || (field_offset & 0x1ff)) {
+			op_len = INT_GET(ophead->oh_len, ARCH_CONVERT);
+		} else {
+			idx = BTOBBT((__psint_t)&ophead->oh_len -
+				    (__psint_t)iclog->ic_datap);
+			if (idx >= (XLOG_HEADER_CYCLE_SIZE / BBSIZE)) {
+				j = idx / (XLOG_HEADER_CYCLE_SIZE / BBSIZE);
+				k = idx % (XLOG_HEADER_CYCLE_SIZE / BBSIZE);
+				op_len = INT_GET(xhdr[j].hic_xheader.xh_cycle_data[k], ARCH_CONVERT);
+			} else {
+				op_len = INT_GET(iclog->ic_header.h_cycle_data[idx], ARCH_CONVERT);
+			}
+		}
+		ptr += sizeof(xlog_op_header_t) + op_len;
+	}
+}	/* xlog_verify_iclog */
+#endif /* DEBUG && !XLOG_NOLOG */
+
+/*
+ * Mark all iclogs IOERROR. LOG_LOCK is held by the caller.
+ */
+STATIC int
+xlog_state_ioerror(
+	xlog_t	*log)
+{
+	xlog_in_core_t	*iclog, *ic;
+
+	iclog = log->l_iclog;
+	if (! (iclog->ic_state & XLOG_STATE_IOERROR)) {
+		/*
+		 * Mark all the incore logs IOERROR.
+		 * From now on, no log flushes will result.
+		 */
+		ic = iclog;
+		do {
+			ic->ic_state = XLOG_STATE_IOERROR;
+			ic = ic->ic_next;
+		} while (ic != iclog);
+		return (0);
+	}
+	/*
+	 * Return non-zero, if state transition has already happened.
+	 */
+	return (1);
+}
+
+/*
+ * This is called from xfs_force_shutdown, when we're forcibly
+ * shutting down the filesystem, typically because of an IO error.
+ * Our main objectives here are to make sure that:
+ *	a. the filesystem gets marked 'SHUTDOWN' for all interested
+ *	   parties to find out, 'atomically'.
+ *	b. those who're sleeping on log reservations, pinned objects and
+ *	    other resources get woken up, and be told the bad news.
+ *	c. nothing new gets queued up after (a) and (b) are done.
+ *	d. if !logerror, flush the iclogs to disk, then seal them off
+ *	   for business.
+ */
+int
+xfs_log_force_umount(
+	struct xfs_mount	*mp,
+	int			logerror)
+{
+	xlog_ticket_t	*tic;
+	xlog_t		*log;
+	int		retval;
+	SPLDECL(s);
+	SPLDECL(s2);
+
+	log = mp->m_log;
+
+	/*
+	 * If this happens during log recovery, don't worry about
+	 * locking; the log isn't open for business yet.
+	 */
+	if (!log ||
+	    log->l_flags & XLOG_ACTIVE_RECOVERY) {
+		mp->m_flags |= XFS_MOUNT_FS_SHUTDOWN;
+		XFS_BUF_DONE(mp->m_sb_bp);
+		return (0);
+	}
+
+	/*
+	 * Somebody could've already done the hard work for us.
+	 * No need to get locks for this.
+	 */
+	if (logerror && log->l_iclog->ic_state & XLOG_STATE_IOERROR) {
+		ASSERT(XLOG_FORCED_SHUTDOWN(log));
+		return (1);
+	}
+	retval = 0;
+	/*
+	 * We must hold both the GRANT lock and the LOG lock,
+	 * before we mark the filesystem SHUTDOWN and wake
+	 * everybody up to tell the bad news.
+	 */
+	s = GRANT_LOCK(log);
+	s2 = LOG_LOCK(log);
+	mp->m_flags |= XFS_MOUNT_FS_SHUTDOWN;
+	XFS_BUF_DONE(mp->m_sb_bp);
+	/*
+	 * This flag is sort of redundant because of the mount flag, but
+	 * it's good to maintain the separation between the log and the rest
+	 * of XFS.
+	 */
+	log->l_flags |= XLOG_IO_ERROR;
+
+	/*
+	 * If we hit a log error, we want to mark all the iclogs IOERROR
+	 * while we're still holding the loglock.
+	 */
+	if (logerror)
+		retval = xlog_state_ioerror(log);
+	LOG_UNLOCK(log, s2);
+
+	/*
+	 * We don't want anybody waiting for log reservations
+	 * after this. That means we have to wake up everybody
+	 * queued up on reserve_headq as well as write_headq.
+	 * In addition, we make sure in xlog_{re}grant_log_space
+	 * that we don't enqueue anything once the SHUTDOWN flag
+	 * is set, and this action is protected by the GRANTLOCK.
+	 */
+	if ((tic = log->l_reserve_headq)) {
+		do {
+			sv_signal(&tic->t_sema);
+			tic = tic->t_next;
+		} while (tic != log->l_reserve_headq);
+	}
+
+	if ((tic = log->l_write_headq)) {
+		do {
+			sv_signal(&tic->t_sema);
+			tic = tic->t_next;
+		} while (tic != log->l_write_headq);
+	}
+	GRANT_UNLOCK(log, s);
+
+	if (! (log->l_iclog->ic_state & XLOG_STATE_IOERROR)) {
+		ASSERT(!logerror);
+		/*
+		 * Force the incore logs to disk before shutting the
+		 * log down completely.
+		 */
+		xlog_state_sync_all(log, XFS_LOG_FORCE|XFS_LOG_SYNC);
+		s2 = LOG_LOCK(log);
+		retval = xlog_state_ioerror(log);
+		LOG_UNLOCK(log, s2);
+	}
+	/*
+	 * Wake up everybody waiting on xfs_log_force.
+	 * Callback all log item committed functions as if the
+	 * log writes were completed.
+	 */
+	xlog_state_do_callback(log, XFS_LI_ABORTED, NULL);
+
+#ifdef XFSERRORDEBUG
+	{
+		xlog_in_core_t	*iclog;
+
+		s = LOG_LOCK(log);
+		iclog = log->l_iclog;
+		do {
+			ASSERT(iclog->ic_callback == 0);
+			iclog = iclog->ic_next;
+		} while (iclog != log->l_iclog);
+		LOG_UNLOCK(log, s);
+	}
+#endif
+	/* return non-zero if log IOERROR transition had already happened */
+	return (retval);
+}
+
+int
+xlog_iclogs_empty(xlog_t *log)
+{
+	xlog_in_core_t	*iclog;
+
+	iclog = log->l_iclog;
+	do {
+		/* endianness does not matter here, zero is zero in
+		 * any language.
+		 */
+		if (iclog->ic_header.h_num_logops)
+			return(0);
+		iclog = iclog->ic_next;
+	} while (iclog != log->l_iclog);
+	return(1);
+}
diff --git a/fs/xfs/xfs_log.h b/fs/xfs/xfs_log.h
new file mode 100644
index 00000000000000..3b1f395b67bbeb
--- /dev/null
+++ b/fs/xfs/xfs_log.h
@@ -0,0 +1,193 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef	__XFS_LOG_H__
+#define __XFS_LOG_H__
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+#define LSN_FIELD_CYCLE(arch) (((arch)==ARCH_NOCONVERT)?1:0)
+#define LSN_FIELD_BLOCK(arch) (((arch)==ARCH_NOCONVERT)?0:1)
+#else
+#define LSN_FIELD_CYCLE(arch) (0)
+#define LSN_FIELD_BLOCK(arch) (1)
+#endif
+
+/* get lsn fields */
+
+#define CYCLE_LSN(lsn,arch) (INT_GET(((uint *)&(lsn))[LSN_FIELD_CYCLE(arch)], arch))
+#define BLOCK_LSN(lsn,arch) (INT_GET(((uint *)&(lsn))[LSN_FIELD_BLOCK(arch)], arch))
+/* this is used in a spot where we might otherwise double-endian-flip */
+#define CYCLE_LSN_NOCONV(lsn,arch) (((uint *)&(lsn))[LSN_FIELD_CYCLE(arch)])
+
+#ifdef __KERNEL__
+/*
+ * By comparing each compnent, we don't have to worry about extra
+ * endian issues in treating two 32 bit numbers as one 64 bit number
+ */
+static
+#if defined(__GNUC__) && (__GNUC__ == 2) && ( (__GNUC_MINOR__ == 95) || (__GNUC_MINOR__ == 96))
+__attribute__((unused))	/* gcc 2.95, 2.96 miscompile this when inlined */
+#else
+__inline__
+#endif
+xfs_lsn_t	_lsn_cmp(xfs_lsn_t lsn1, xfs_lsn_t lsn2, xfs_arch_t arch)
+{
+	if (CYCLE_LSN(lsn1, arch) != CYCLE_LSN(lsn2, arch))
+		return (CYCLE_LSN(lsn1, arch)<CYCLE_LSN(lsn2, arch))? -999 : 999;
+
+	if (BLOCK_LSN(lsn1, arch) != BLOCK_LSN(lsn2, arch))
+		return (BLOCK_LSN(lsn1, arch)<BLOCK_LSN(lsn2, arch))? -999 : 999;
+
+	return 0;
+}
+
+#define	XFS_LSN_CMP_ARCH(x,y,arch)	_lsn_cmp(x, y, arch)
+#define	XFS_LSN_CMP(x,y) XFS_LSN_CMP_ARCH(x,y,ARCH_NOCONVERT)
+#define	XFS_LSN_DIFF_ARCH(x,y,arch)	_lsn_cmp(x, y, arch)
+#define	XFS_LSN_DIFF(x,y) XFS_LSN_DIFF_ARCH(x,y,ARCH_NOCONVERT)
+
+/*
+ * Macros, structures, prototypes for interface to the log manager.
+ */
+
+/*
+ * Flags to xfs_log_mount
+ */
+#define XFS_LOG_RECOVER		0x1
+
+/*
+ * Flags to xfs_log_done()
+ */
+#define XFS_LOG_REL_PERM_RESERV	0x1
+
+
+/*
+ * Flags to xfs_log_reserve()
+ *
+ *	XFS_LOG_SLEEP:	 If space is not available, sleep (default)
+ *	XFS_LOG_NOSLEEP: If space is not available, return error
+ *	XFS_LOG_PERM_RESERV: Permanent reservation.  When writes are
+ *		performed against this type of reservation, the reservation
+ *		is not decreased.  Long running transactions should use this.
+ */
+#define XFS_LOG_SLEEP		0x0
+#define XFS_LOG_NOSLEEP		0x1
+#define XFS_LOG_PERM_RESERV	0x2
+#define XFS_LOG_RESV_ALL	(XFS_LOG_NOSLEEP|XFS_LOG_PERM_RESERV)
+
+
+/*
+ * Flags to xfs_log_force()
+ *
+ *	XFS_LOG_SYNC:	Synchronous force in-core log to disk
+ *	XFS_LOG_FORCE:	Start in-core log write now.
+ *	XFS_LOG_URGE:	Start write within some window of time.
+ *
+ * Note: Either XFS_LOG_FORCE or XFS_LOG_URGE must be set.
+ */
+#define XFS_LOG_SYNC		0x1
+#define XFS_LOG_FORCE		0x2
+#define XFS_LOG_URGE		0x4
+
+#endif	/* __KERNEL__ */
+
+
+/* Log Clients */
+#define XFS_TRANSACTION		0x69
+#define XFS_VOLUME		0x2
+#define XFS_LOG			0xaa
+
+typedef struct xfs_log_iovec {
+	xfs_caddr_t		i_addr;		/* beginning address of region */
+	int		i_len;		/* length in bytes of region */
+} xfs_log_iovec_t;
+
+typedef void* xfs_log_ticket_t;
+
+/*
+ * Structure used to pass callback function and the function's argument
+ * to the log manager.
+ */
+typedef struct xfs_log_callback {
+	struct xfs_log_callback	*cb_next;
+	void			(*cb_func)(void *, int);
+	void			*cb_arg;
+} xfs_log_callback_t;
+
+
+#ifdef __KERNEL__
+/* Log manager interfaces */
+struct xfs_mount;
+xfs_lsn_t xfs_log_done(struct xfs_mount *mp,
+		       xfs_log_ticket_t ticket,
+		       void		**iclog,
+		       uint		flags);
+int	  xfs_log_force(struct xfs_mount *mp,
+			xfs_lsn_t	 lsn,
+			uint		 flags);
+int	  xfs_log_mount(struct xfs_mount	*mp,
+			struct xfs_buftarg	*log_target,
+			xfs_daddr_t		start_block,
+			int		 	num_bblocks);
+int	  xfs_log_mount_finish(struct xfs_mount *mp, int);
+void	  xfs_log_move_tail(struct xfs_mount	*mp,
+			    xfs_lsn_t		tail_lsn);
+int	  xfs_log_notify(struct xfs_mount	*mp,
+			 void			*iclog,
+			 xfs_log_callback_t	*callback_entry);
+int	  xfs_log_release_iclog(struct xfs_mount *mp,
+			 void			 *iclog_hndl);
+int	  xfs_log_reserve(struct xfs_mount *mp,
+			  int		   length,
+			  int		   count,
+			  xfs_log_ticket_t *ticket,
+			  __uint8_t	   clientid,
+			  uint		   flags);
+int	  xfs_log_write(struct xfs_mount *mp,
+			xfs_log_iovec_t  region[],
+			int		 nentries,
+			xfs_log_ticket_t ticket,
+			xfs_lsn_t	 *start_lsn);
+int	  xfs_log_unmount(struct xfs_mount *mp);
+int	  xfs_log_unmount_write(struct xfs_mount *mp);
+void      xfs_log_unmount_dealloc(struct xfs_mount *mp);
+int	  xfs_log_force_umount(struct xfs_mount *mp, int logerror);
+int	  xfs_log_need_covered(struct xfs_mount *mp);
+
+void	  xlog_iodone(struct xfs_buf *);
+
+#endif
+
+
+extern int xlog_debug;		/* set to 1 to enable real log */
+
+
+#endif	/* __XFS_LOG_H__ */
diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h
new file mode 100644
index 00000000000000..0505a3069e0253
--- /dev/null
+++ b/fs/xfs/xfs_log_priv.h
@@ -0,0 +1,561 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef	__XFS_LOG_PRIV_H__
+#define __XFS_LOG_PRIV_H__
+
+struct xfs_buf;
+struct ktrace;
+struct log;
+struct xfs_buf_cancel;
+struct xfs_mount;
+
+/*
+ * Macros, structures, prototypes for internal log manager use.
+ */
+
+#define XLOG_MIN_ICLOGS		2
+#define XLOG_MED_ICLOGS		4
+#define XLOG_MAX_ICLOGS		8
+#define XLOG_CALLBACK_SIZE	10
+#define XLOG_HEADER_MAGIC_NUM	0xFEEDbabe	/* Invalid cycle number */
+#define XLOG_VERSION_1		1
+#define XLOG_VERSION_2		2		/* Large IClogs, Log sunit */
+#define XLOG_VERSION_OKBITS	(XLOG_VERSION_1 | XLOG_VERSION_2)
+#define XLOG_RECORD_BSIZE	(16*1024)	/* eventually 32k */
+#define XLOG_BIG_RECORD_BSIZE	(32*1024)	/* 32k buffers */
+#define XLOG_MAX_RECORD_BSIZE	(256*1024)
+#define XLOG_HEADER_CYCLE_SIZE	(32*1024)	/* cycle data in header */
+#define XLOG_RECORD_BSHIFT	14		/* 16384 == 1 << 14 */
+#define XLOG_BIG_RECORD_BSHIFT	15		/* 32k == 1 << 15 */
+#define XLOG_MAX_RECORD_BSHIFT	18		/* 256k == 1 << 18 */
+#define XLOG_BTOLSUNIT(log, b)  (((b)+(log)->l_mp->m_sb.sb_logsunit-1) / \
+                                 (log)->l_mp->m_sb.sb_logsunit)
+#define XLOG_LSUNITTOB(log, su) ((su) * (log)->l_mp->m_sb.sb_logsunit)
+
+#define XLOG_HEADER_SIZE	512
+
+#define XLOG_REC_SHIFT(log) \
+	BTOBB(1 << (XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb) ? \
+	 XLOG_MAX_RECORD_BSHIFT : XLOG_BIG_RECORD_BSHIFT))
+#define XLOG_TOTAL_REC_SHIFT(log) \
+	BTOBB(XLOG_MAX_ICLOGS << (XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb) ? \
+	 XLOG_MAX_RECORD_BSHIFT : XLOG_BIG_RECORD_BSHIFT))
+
+/*
+ *  set lsns
+ */
+
+#define ASSIGN_LSN_CYCLE(lsn,cycle,arch) \
+    INT_SET(((uint *)&(lsn))[LSN_FIELD_CYCLE(arch)], arch, (cycle));
+#define ASSIGN_LSN_BLOCK(lsn,block,arch) \
+    INT_SET(((uint *)&(lsn))[LSN_FIELD_BLOCK(arch)], arch, (block));
+#define ASSIGN_ANY_LSN(lsn,cycle,block,arch)  \
+    { \
+	ASSIGN_LSN_CYCLE(lsn,cycle,arch); \
+	ASSIGN_LSN_BLOCK(lsn,block,arch); \
+    }
+#define ASSIGN_LSN(lsn,log,arch) \
+    ASSIGN_ANY_LSN(lsn,(log)->l_curr_cycle,(log)->l_curr_block,arch);
+
+#define XLOG_SET(f,b)		(((f) & (b)) == (b))
+
+#define GET_CYCLE(ptr, arch) \
+    (INT_GET(*(uint *)(ptr), arch) == XLOG_HEADER_MAGIC_NUM ? \
+	 INT_GET(*((uint *)(ptr)+1), arch) : \
+	 INT_GET(*(uint *)(ptr), arch) \
+    )
+
+#define BLK_AVG(blk1, blk2)	((blk1+blk2) >> 1)
+
+
+#ifdef __KERNEL__
+
+/*
+ * get client id from packed copy.
+ *
+ * this hack is here because the xlog_pack code copies four bytes
+ * of xlog_op_header containing the fields oh_clientid, oh_flags
+ * and oh_res2 into the packed copy.
+ *
+ * later on this four byte chunk is treated as an int and the
+ * client id is pulled out.
+ *
+ * this has endian issues, of course.
+ */
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+#define GET_CLIENT_ID(i,arch) \
+    ((i) & 0xff)
+#else
+#define GET_CLIENT_ID(i,arch) \
+    ((i) >> 24)
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XLOG_GRANT_SUB_SPACE)
+void xlog_grant_sub_space(struct log *log, int bytes, int type);
+#define XLOG_GRANT_SUB_SPACE(log,bytes,type)	\
+	xlog_grant_sub_space(log,bytes,type)
+#else
+#define XLOG_GRANT_SUB_SPACE(log,bytes,type)				\
+    {									\
+	if (type == 'w') {						\
+		(log)->l_grant_write_bytes -= (bytes);			\
+		if ((log)->l_grant_write_bytes < 0) {			\
+			(log)->l_grant_write_bytes += (log)->l_logsize;	\
+			(log)->l_grant_write_cycle--;			\
+		}							\
+	} else {							\
+		(log)->l_grant_reserve_bytes -= (bytes);		\
+		if ((log)->l_grant_reserve_bytes < 0) {			\
+			(log)->l_grant_reserve_bytes += (log)->l_logsize;\
+			(log)->l_grant_reserve_cycle--;			\
+		}							\
+	 }								\
+    }
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XLOG_GRANT_ADD_SPACE)
+void xlog_grant_add_space(struct log *log, int bytes, int type);
+#define XLOG_GRANT_ADD_SPACE(log,bytes,type)	\
+	xlog_grant_add_space(log,bytes,type)
+#else
+#define XLOG_GRANT_ADD_SPACE(log,bytes,type)				\
+    {									\
+	if (type == 'w') {						\
+		(log)->l_grant_write_bytes += (bytes);			\
+		if ((log)->l_grant_write_bytes > (log)->l_logsize) {	\
+			(log)->l_grant_write_bytes -= (log)->l_logsize;	\
+			(log)->l_grant_write_cycle++;			\
+		}							\
+	} else {							\
+		(log)->l_grant_reserve_bytes += (bytes);		\
+		if ((log)->l_grant_reserve_bytes > (log)->l_logsize) {	\
+			(log)->l_grant_reserve_bytes -= (log)->l_logsize;\
+			(log)->l_grant_reserve_cycle++;			\
+		}							\
+	 }								\
+    }
+#endif
+#define XLOG_INS_TICKETQ(q,tic)				\
+    {							\
+	if (q) {					\
+		(tic)->t_next	    = (q);		\
+		(tic)->t_prev	    = (q)->t_prev;	\
+		(q)->t_prev->t_next = (tic);		\
+		(q)->t_prev	    = (tic);		\
+	} else {					\
+		(tic)->t_prev = (tic)->t_next = (tic);	\
+		(q) = (tic);				\
+	}						\
+	(tic)->t_flags |= XLOG_TIC_IN_Q;		\
+    }
+#define XLOG_DEL_TICKETQ(q,tic)				\
+    {							\
+	if ((tic) == (tic)->t_next) {			\
+		(q) = NULL;				\
+	} else {					\
+		(q) = (tic)->t_next;			\
+		(tic)->t_next->t_prev = (tic)->t_prev;	\
+		(tic)->t_prev->t_next = (tic)->t_next;	\
+	}						\
+	(tic)->t_next = (tic)->t_prev = NULL;		\
+	(tic)->t_flags &= ~XLOG_TIC_IN_Q;		\
+    }
+
+
+#define GRANT_LOCK(log)		mutex_spinlock(&(log)->l_grant_lock)
+#define GRANT_UNLOCK(log, s)	mutex_spinunlock(&(log)->l_grant_lock, s)
+#define LOG_LOCK(log)		mutex_spinlock(&(log)->l_icloglock)
+#define LOG_UNLOCK(log, s)	mutex_spinunlock(&(log)->l_icloglock, s)
+
+#define xlog_panic(args...)	cmn_err(CE_PANIC, ## args)
+#define xlog_exit(args...)	cmn_err(CE_PANIC, ## args)
+#define xlog_warn(args...)	cmn_err(CE_WARN, ## args)
+
+/*
+ * In core log state
+ */
+#define XLOG_STATE_ACTIVE    0x0001 /* Current IC log being written to */
+#define XLOG_STATE_WANT_SYNC 0x0002 /* Want to sync this iclog; no more writes */
+#define XLOG_STATE_SYNCING   0x0004 /* This IC log is syncing */
+#define XLOG_STATE_DONE_SYNC 0x0008 /* Done syncing to disk */
+#define XLOG_STATE_DO_CALLBACK \
+			     0x0010 /* Process callback functions */
+#define XLOG_STATE_CALLBACK  0x0020 /* Callback functions now */
+#define XLOG_STATE_DIRTY     0x0040 /* Dirty IC log, not ready for ACTIVE status*/
+#define XLOG_STATE_IOERROR   0x0080 /* IO error happened in sync'ing log */
+#define XLOG_STATE_ALL	     0x7FFF /* All possible valid flags */
+#define XLOG_STATE_NOTUSED   0x8000 /* This IC log not being used */
+#endif	/* __KERNEL__ */
+
+/*
+ * Flags to log operation header
+ *
+ * The first write of a new transaction will be preceded with a start
+ * record, XLOG_START_TRANS.  Once a transaction is committed, a commit
+ * record is written, XLOG_COMMIT_TRANS.  If a single region can not fit into
+ * the remainder of the current active in-core log, it is split up into
+ * multiple regions.  Each partial region will be marked with a
+ * XLOG_CONTINUE_TRANS until the last one, which gets marked with XLOG_END_TRANS.
+ *
+ */
+#define XLOG_START_TRANS	0x01	/* Start a new transaction */
+#define XLOG_COMMIT_TRANS	0x02	/* Commit this transaction */
+#define XLOG_CONTINUE_TRANS	0x04	/* Cont this trans into new region */
+#define XLOG_WAS_CONT_TRANS	0x08	/* Cont this trans into new region */
+#define XLOG_END_TRANS		0x10	/* End a continued transaction */
+#define XLOG_UNMOUNT_TRANS	0x20	/* Unmount a filesystem transaction */
+#define XLOG_SKIP_TRANS		(XLOG_COMMIT_TRANS | XLOG_CONTINUE_TRANS | \
+				 XLOG_WAS_CONT_TRANS | XLOG_END_TRANS | \
+				 XLOG_UNMOUNT_TRANS)
+
+#ifdef __KERNEL__
+/*
+ * Flags to log ticket
+ */
+#define XLOG_TIC_INITED		0x1	/* has been initialized */
+#define XLOG_TIC_PERM_RESERV	0x2	/* permanent reservation */
+#define XLOG_TIC_IN_Q		0x4
+#endif	/* __KERNEL__ */
+
+#define XLOG_UNMOUNT_TYPE	0x556e	/* Un for Unmount */
+
+/*
+ * Flags for log structure
+ */
+#define XLOG_CHKSUM_MISMATCH	0x1	/* used only during recovery */
+#define XLOG_ACTIVE_RECOVERY	0x2	/* in the middle of recovery */
+#define	XLOG_RECOVERY_NEEDED	0x4	/* log was recovered */
+#define XLOG_IO_ERROR		0x8	/* log hit an I/O error, and being
+					   shutdown */
+typedef __uint32_t xlog_tid_t;
+
+
+#ifdef __KERNEL__
+/*
+ * Below are states for covering allocation transactions.
+ * By covering, we mean changing the h_tail_lsn in the last on-disk
+ * log write such that no allocation transactions will be re-done during
+ * recovery after a system crash. Recovery starts at the last on-disk
+ * log write.
+ *
+ * These states are used to insert dummy log entries to cover
+ * space allocation transactions which can undo non-transactional changes
+ * after a crash. Writes to a file with space
+ * already allocated do not result in any transactions. Allocations
+ * might include space beyond the EOF. So if we just push the EOF a
+ * little, the last transaction for the file could contain the wrong
+ * size. If there is no file system activity, after an allocation
+ * transaction, and the system crashes, the allocation transaction
+ * will get replayed and the file will be truncated. This could
+ * be hours/days/... after the allocation occurred.
+ *
+ * The fix for this is to do two dummy transactions when the
+ * system is idle. We need two dummy transaction because the h_tail_lsn
+ * in the log record header needs to point beyond the last possible
+ * non-dummy transaction. The first dummy changes the h_tail_lsn to
+ * the first transaction before the dummy. The second dummy causes
+ * h_tail_lsn to point to the first dummy. Recovery starts at h_tail_lsn.
+ *
+ * These dummy transactions get committed when everything
+ * is idle (after there has been some activity).
+ *
+ * There are 5 states used to control this.
+ *
+ *  IDLE -- no logging has been done on the file system or
+ *		we are done covering previous transactions.
+ *  NEED -- logging has occurred and we need a dummy transaction
+ *		when the log becomes idle.
+ *  DONE -- we were in the NEED state and have committed a dummy
+ *		transaction.
+ *  NEED2 -- we detected that a dummy transaction has gone to the
+ *		on disk log with no other transactions.
+ *  DONE2 -- we committed a dummy transaction when in the NEED2 state.
+ *
+ * There are two places where we switch states:
+ *
+ * 1.) In xfs_sync, when we detect an idle log and are in NEED or NEED2.
+ *	We commit the dummy transaction and switch to DONE or DONE2,
+ *	respectively. In all other states, we don't do anything.
+ *
+ * 2.) When we finish writing the on-disk log (xlog_state_clean_log).
+ *
+ *	No matter what state we are in, if this isn't the dummy
+ *	transaction going out, the next state is NEED.
+ *	So, if we aren't in the DONE or DONE2 states, the next state
+ *	is NEED. We can't be finishing a write of the dummy record
+ *	unless it was committed and the state switched to DONE or DONE2.
+ *
+ *	If we are in the DONE state and this was a write of the
+ *		dummy transaction, we move to NEED2.
+ *
+ *	If we are in the DONE2 state and this was a write of the
+ *		dummy transaction, we move to IDLE.
+ *
+ *
+ * Writing only one dummy transaction can get appended to
+ * one file space allocation. When this happens, the log recovery
+ * code replays the space allocation and a file could be truncated.
+ * This is why we have the NEED2 and DONE2 states before going idle.
+ */
+
+#define XLOG_STATE_COVER_IDLE	0
+#define XLOG_STATE_COVER_NEED	1
+#define XLOG_STATE_COVER_DONE	2
+#define XLOG_STATE_COVER_NEED2	3
+#define XLOG_STATE_COVER_DONE2	4
+
+#define XLOG_COVER_OPS		5
+
+typedef struct xlog_ticket {
+	sv_t		   t_sema;	 /* sleep on this semaphore	 :20 */
+	struct xlog_ticket *t_next;	 /*			         : 4 */
+	struct xlog_ticket *t_prev;	 /*				 : 4 */
+	xlog_tid_t	   t_tid;	 /* transaction identifier	 : 4 */
+	int		   t_curr_res;	 /* current reservation in bytes : 4 */
+	int		   t_unit_res;	 /* unit reservation in bytes    : 4 */
+	__uint8_t	   t_ocnt;	 /* original count		 : 1 */
+	__uint8_t	   t_cnt;	 /* current count		 : 1 */
+	__uint8_t	   t_clientid;	 /* who does this belong to;	 : 1 */
+	__uint8_t	   t_flags;	 /* properties of reservation	 : 1 */
+} xlog_ticket_t;
+#endif
+
+
+typedef struct xlog_op_header {
+	xlog_tid_t oh_tid;	/* transaction id of operation	:  4 b */
+	int	   oh_len;	/* bytes in data region		:  4 b */
+	__uint8_t  oh_clientid;	/* who sent me this		:  1 b */
+	__uint8_t  oh_flags;	/*				:  1 b */
+	ushort	   oh_res2;	/* 32 bit align			:  2 b */
+} xlog_op_header_t;
+
+
+/* valid values for h_fmt */
+#define XLOG_FMT_UNKNOWN  0
+#define XLOG_FMT_LINUX_LE 1
+#define XLOG_FMT_LINUX_BE 2
+#define XLOG_FMT_IRIX_BE  3
+
+/* our fmt */
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+#define XLOG_FMT XLOG_FMT_LINUX_LE
+#else
+#if __BYTE_ORDER == __BIG_ENDIAN
+#define XLOG_FMT XLOG_FMT_LINUX_BE
+#else
+#error unknown byte order
+#endif
+#endif
+
+typedef struct xlog_rec_header {
+	uint	  h_magicno;	/* log record (LR) identifier		:  4 */
+	uint	  h_cycle;	/* write cycle of log			:  4 */
+	int	  h_version;	/* LR version				:  4 */
+	int	  h_len;	/* len in bytes; should be 64-bit aligned: 4 */
+	xfs_lsn_t h_lsn;	/* lsn of this LR			:  8 */
+	xfs_lsn_t h_tail_lsn;	/* lsn of 1st LR w/ buffers not committed: 8 */
+	uint	  h_chksum;	/* may not be used; non-zero if used	:  4 */
+	int	  h_prev_block; /* block number to previous LR		:  4 */
+	int	  h_num_logops;	/* number of log operations in this LR	:  4 */
+	uint	  h_cycle_data[XLOG_HEADER_CYCLE_SIZE / BBSIZE];
+	/* new fields */
+	int       h_fmt;        /* format of log record                 :  4 */
+	uuid_t    h_fs_uuid;    /* uuid of FS                           : 16 */
+	int       h_size;	/* iclog size				:  4 */
+} xlog_rec_header_t;
+
+typedef struct xlog_rec_ext_header {
+	uint	  xh_cycle;	/* write cycle of log			: 4 */
+	uint	  xh_cycle_data[XLOG_HEADER_CYCLE_SIZE / BBSIZE]; /*	: 256 */
+} xlog_rec_ext_header_t;
+
+#ifdef __KERNEL__
+/*
+ * - A log record header is 512 bytes.  There is plenty of room to grow the
+ *	xlog_rec_header_t into the reserved space.
+ * - ic_data follows, so a write to disk can start at the beginning of
+ *	the iclog.
+ * - ic_forcesema is used to implement synchronous forcing of the iclog to disk.
+ * - ic_next is the pointer to the next iclog in the ring.
+ * - ic_bp is a pointer to the buffer used to write this incore log to disk.
+ * - ic_log is a pointer back to the global log structure.
+ * - ic_callback is a linked list of callback function/argument pairs to be
+ *	called after an iclog finishes writing.
+ * - ic_size is the full size of the header plus data.
+ * - ic_offset is the current number of bytes written to in this iclog.
+ * - ic_refcnt is bumped when someone is writing to the log.
+ * - ic_state is the state of the iclog.
+ */
+typedef struct xlog_iclog_fields {
+	sv_t			ic_forcesema;
+	sv_t			ic_writesema;
+	struct xlog_in_core	*ic_next;
+	struct xlog_in_core	*ic_prev;
+	struct xfs_buf		*ic_bp;
+	struct log		*ic_log;
+	xfs_log_callback_t	*ic_callback;
+	xfs_log_callback_t	**ic_callback_tail;
+#ifdef XFS_LOG_TRACE
+	struct ktrace		*ic_trace;
+#endif
+	int			ic_size;
+	int			ic_offset;
+	int			ic_refcnt;
+	int			ic_bwritecnt;
+	ushort_t		ic_state;
+	char			*ic_datap;	/* pointer to iclog data */
+} xlog_iclog_fields_t;
+
+typedef union xlog_in_core2 {
+	xlog_rec_header_t	hic_header;
+	xlog_rec_ext_header_t	hic_xheader;
+	char			hic_sector[XLOG_HEADER_SIZE];
+} xlog_in_core_2_t;
+
+typedef struct xlog_in_core {
+	xlog_iclog_fields_t	hic_fields;
+	xlog_in_core_2_t	*hic_data;
+} xlog_in_core_t;
+
+/*
+ * Defines to save our code from this glop.
+ */
+#define	ic_forcesema	hic_fields.ic_forcesema
+#define ic_writesema	hic_fields.ic_writesema
+#define	ic_next		hic_fields.ic_next
+#define	ic_prev		hic_fields.ic_prev
+#define	ic_bp		hic_fields.ic_bp
+#define	ic_log		hic_fields.ic_log
+#define	ic_callback	hic_fields.ic_callback
+#define	ic_callback_tail hic_fields.ic_callback_tail
+#define	ic_trace	hic_fields.ic_trace
+#define	ic_size		hic_fields.ic_size
+#define	ic_offset	hic_fields.ic_offset
+#define	ic_refcnt	hic_fields.ic_refcnt
+#define	ic_bwritecnt	hic_fields.ic_bwritecnt
+#define	ic_state	hic_fields.ic_state
+#define ic_datap	hic_fields.ic_datap
+#define ic_header	hic_data->hic_header
+
+/*
+ * The reservation head lsn is not made up of a cycle number and block number.
+ * Instead, it uses a cycle number and byte number.  Logs don't expect to
+ * overflow 31 bits worth of byte offset, so using a byte number will mean
+ * that round off problems won't occur when releasing partial reservations.
+ */
+typedef struct log {
+	/* The following block of fields are changed while holding icloglock */
+	sema_t			l_flushsema;    /* iclog flushing semaphore */
+	int			l_flushcnt;	/* # of procs waiting on this
+						 * sema */
+	int			l_ticket_cnt;	/* free ticket count */
+	int			l_ticket_tcnt;	/* total ticket count */
+	int			l_covered_state;/* state of "covering disk
+						 * log entries" */
+	xlog_ticket_t		*l_freelist;    /* free list of tickets */
+	xlog_ticket_t		*l_unmount_free;/* kmem_free these addresses */
+	xlog_ticket_t		*l_tail;        /* free list of tickets */
+	xlog_in_core_t		*l_iclog;       /* head log queue	*/
+	lock_t			l_icloglock;    /* grab to change iclog state */
+	xfs_lsn_t		l_tail_lsn;     /* lsn of 1st LR with unflushed
+						 * buffers */
+	xfs_lsn_t		l_last_sync_lsn;/* lsn of last LR on disk */
+	struct xfs_mount	*l_mp;	        /* mount point */
+	struct xfs_buf		*l_xbuf;        /* extra buffer for log
+						 * wrapping */
+	struct xfs_buftarg	*l_targ;        /* buftarg of log */
+	xfs_daddr_t		l_logBBstart;   /* start block of log */
+	int			l_logsize;      /* size of log in bytes */
+	int			l_logBBsize;    /* size of log in BB chunks */
+	int			l_curr_cycle;   /* Cycle number of log writes */
+	int			l_prev_cycle;   /* Cycle number before last
+						 * block increment */
+	int			l_curr_block;   /* current logical log block */
+	int			l_prev_block;   /* previous logical log block */
+	int			l_iclog_size;	/* size of log in bytes */
+	int			l_iclog_size_log; /* log power size of log */
+	int			l_iclog_bufs;	/* number of iclog buffers */
+
+	/* The following field are used for debugging; need to hold icloglock */
+	char			*l_iclog_bak[XLOG_MAX_ICLOGS];
+
+	/* The following block of fields are changed while holding grant_lock */
+	lock_t			l_grant_lock;
+	xlog_ticket_t		*l_reserve_headq;
+	xlog_ticket_t		*l_write_headq;
+	int			l_grant_reserve_cycle;
+	int			l_grant_reserve_bytes;
+	int			l_grant_write_cycle;
+	int			l_grant_write_bytes;
+
+	/* The following fields don't need locking */
+#ifdef XFS_LOG_TRACE
+	struct ktrace		*l_trace;
+	struct ktrace		*l_grant_trace;
+#endif
+	uint			l_flags;
+	uint			l_quotaoffs_flag; /* XFS_DQ_*, for QUOTAOFFs */
+	struct xfs_buf_cancel	**l_buf_cancel_table;
+	int			l_iclog_hsize;  /* size of iclog header */
+	int			l_iclog_heads;  /* # of iclog header sectors */
+	uint			l_sectbb_log;   /* log2 of sector size in BBs */
+	uint			l_sectbb_mask;  /* sector size (in BBs)
+						 * alignment mask */
+} xlog_t;
+
+
+/* common routines */
+extern xfs_lsn_t xlog_assign_tail_lsn(struct xfs_mount *mp);
+extern int	 xlog_find_head(xlog_t *log, xfs_daddr_t *head_blk);
+extern int	 xlog_find_tail(xlog_t	*log,
+				xfs_daddr_t *head_blk,
+				xfs_daddr_t *tail_blk,
+				int readonly);
+extern int	 xlog_recover(xlog_t *log, int readonly);
+extern int	 xlog_recover_finish(xlog_t *log, int mfsi_flags);
+extern void	 xlog_pack_data(xlog_t *log, xlog_in_core_t *iclog, int);
+extern void	 xlog_recover_process_iunlinks(xlog_t *log);
+
+extern struct xfs_buf *xlog_get_bp(xlog_t *, int);
+extern void	 xlog_put_bp(struct xfs_buf *);
+extern int	 xlog_bread(xlog_t *, xfs_daddr_t, int, struct xfs_buf *);
+extern xfs_caddr_t xlog_align(xlog_t *, xfs_daddr_t, int, struct xfs_buf *);
+
+/* iclog tracing */
+#define XLOG_TRACE_GRAB_FLUSH  1
+#define XLOG_TRACE_REL_FLUSH   2
+#define XLOG_TRACE_SLEEP_FLUSH 3
+#define XLOG_TRACE_WAKE_FLUSH  4
+
+#endif	/* __KERNEL__ */
+
+#endif	/* __XFS_LOG_PRIV_H__ */
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
new file mode 100644
index 00000000000000..6079aad901569c
--- /dev/null
+++ b/fs/xfs/xfs_log_recover.c
@@ -0,0 +1,4098 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_ag.h"
+#include "xfs_sb.h"
+#include "xfs_trans.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_error.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_alloc.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_imap.h"
+#include "xfs_inode_item.h"
+#include "xfs_inode.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_log_priv.h"
+#include "xfs_buf_item.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_log_recover.h"
+#include "xfs_extfree_item.h"
+#include "xfs_trans_priv.h"
+#include "xfs_bit.h"
+#include "xfs_quota.h"
+#include "xfs_rw.h"
+
+STATIC int	xlog_find_zeroed(xlog_t *, xfs_daddr_t *);
+STATIC int	xlog_clear_stale_blocks(xlog_t *, xfs_lsn_t);
+STATIC void	xlog_recover_insert_item_backq(xlog_recover_item_t **q,
+					       xlog_recover_item_t *item);
+#if defined(DEBUG)
+STATIC void	xlog_recover_check_summary(xlog_t *);
+STATIC void	xlog_recover_check_ail(xfs_mount_t *, xfs_log_item_t *, int);
+#else
+#define	xlog_recover_check_summary(log)
+#define	xlog_recover_check_ail(mp, lip, gen)
+#endif
+
+
+/*
+ * Sector aligned buffer routines for buffer create/read/write/access
+ */
+
+#define XLOG_SECTOR_ROUNDUP_BBCOUNT(log, bbs)	\
+	( ((log)->l_sectbb_mask && (bbs & (log)->l_sectbb_mask)) ? \
+	((bbs + (log)->l_sectbb_mask + 1) & ~(log)->l_sectbb_mask) : (bbs) )
+#define XLOG_SECTOR_ROUNDDOWN_BLKNO(log, bno)	((bno) & ~(log)->l_sectbb_mask)
+
+xfs_buf_t *
+xlog_get_bp(
+	xlog_t		*log,
+	int		num_bblks)
+{
+	ASSERT(num_bblks > 0);
+
+	if (log->l_sectbb_log) {
+		if (num_bblks > 1)
+			num_bblks += XLOG_SECTOR_ROUNDUP_BBCOUNT(log, 1);
+		num_bblks = XLOG_SECTOR_ROUNDUP_BBCOUNT(log, num_bblks);
+	}
+	return xfs_buf_get_noaddr(BBTOB(num_bblks), log->l_mp->m_logdev_targp);
+}
+
+void
+xlog_put_bp(
+	xfs_buf_t	*bp)
+{
+	xfs_buf_free(bp);
+}
+
+
+/*
+ * nbblks should be uint, but oh well.  Just want to catch that 32-bit length.
+ */
+int
+xlog_bread(
+	xlog_t		*log,
+	xfs_daddr_t	blk_no,
+	int		nbblks,
+	xfs_buf_t	*bp)
+{
+	int		error;
+
+	if (log->l_sectbb_log) {
+		blk_no = XLOG_SECTOR_ROUNDDOWN_BLKNO(log, blk_no);
+		nbblks = XLOG_SECTOR_ROUNDUP_BBCOUNT(log, nbblks);
+	}
+
+	ASSERT(nbblks > 0);
+	ASSERT(BBTOB(nbblks) <= XFS_BUF_SIZE(bp));
+	ASSERT(bp);
+
+	XFS_BUF_SET_ADDR(bp, log->l_logBBstart + blk_no);
+	XFS_BUF_READ(bp);
+	XFS_BUF_BUSY(bp);
+	XFS_BUF_SET_COUNT(bp, BBTOB(nbblks));
+	XFS_BUF_SET_TARGET(bp, log->l_mp->m_logdev_targp);
+
+	xfsbdstrat(log->l_mp, bp);
+	if ((error = xfs_iowait(bp)))
+		xfs_ioerror_alert("xlog_bread", log->l_mp,
+				  bp, XFS_BUF_ADDR(bp));
+	return error;
+}
+
+/*
+ * Write out the buffer at the given block for the given number of blocks.
+ * The buffer is kept locked across the write and is returned locked.
+ * This can only be used for synchronous log writes.
+ */
+int
+xlog_bwrite(
+	xlog_t		*log,
+	xfs_daddr_t	blk_no,
+	int		nbblks,
+	xfs_buf_t	*bp)
+{
+	int		error;
+
+	if (log->l_sectbb_log) {
+		blk_no = XLOG_SECTOR_ROUNDDOWN_BLKNO(log, blk_no);
+		nbblks = XLOG_SECTOR_ROUNDUP_BBCOUNT(log, nbblks);
+	}
+
+	ASSERT(nbblks > 0);
+	ASSERT(BBTOB(nbblks) <= XFS_BUF_SIZE(bp));
+
+	XFS_BUF_SET_ADDR(bp, log->l_logBBstart + blk_no);
+	XFS_BUF_ZEROFLAGS(bp);
+	XFS_BUF_BUSY(bp);
+	XFS_BUF_HOLD(bp);
+	XFS_BUF_PSEMA(bp, PRIBIO);
+	XFS_BUF_SET_COUNT(bp, BBTOB(nbblks));
+	XFS_BUF_SET_TARGET(bp, log->l_mp->m_logdev_targp);
+
+	if ((error = xfs_bwrite(log->l_mp, bp)))
+		xfs_ioerror_alert("xlog_bwrite", log->l_mp,
+				  bp, XFS_BUF_ADDR(bp));
+	return error;
+}
+
+xfs_caddr_t
+xlog_align(
+	xlog_t		*log,
+	xfs_daddr_t	blk_no,
+	int		nbblks,
+	xfs_buf_t	*bp)
+{
+	xfs_caddr_t	ptr;
+
+	if (!log->l_sectbb_log)
+		return XFS_BUF_PTR(bp);
+
+	ptr = XFS_BUF_PTR(bp) + BBTOB((int)blk_no & log->l_sectbb_mask);
+	ASSERT(XFS_BUF_SIZE(bp) >=
+		BBTOB(nbblks + (blk_no & log->l_sectbb_mask)));
+	return ptr;
+}
+
+#ifdef DEBUG
+/*
+ * dump debug superblock and log record information
+ */
+STATIC void
+xlog_header_check_dump(
+	xfs_mount_t		*mp,
+	xlog_rec_header_t	*head)
+{
+	int			b;
+
+	printk("%s:  SB : uuid = ", __FUNCTION__);
+	for (b = 0; b < 16; b++)
+		printk("%02x",((unsigned char *)&mp->m_sb.sb_uuid)[b]);
+	printk(", fmt = %d\n", XLOG_FMT);
+	printk("    log : uuid = ");
+	for (b = 0; b < 16; b++)
+		printk("%02x",((unsigned char *)&head->h_fs_uuid)[b]);
+	printk(", fmt = %d\n", INT_GET(head->h_fmt, ARCH_CONVERT));
+}
+#else
+#define xlog_header_check_dump(mp, head)
+#endif
+
+/*
+ * check log record header for recovery
+ */
+STATIC int
+xlog_header_check_recover(
+	xfs_mount_t		*mp,
+	xlog_rec_header_t	*head)
+{
+	ASSERT(INT_GET(head->h_magicno, ARCH_CONVERT) == XLOG_HEADER_MAGIC_NUM);
+
+	/*
+	 * IRIX doesn't write the h_fmt field and leaves it zeroed
+	 * (XLOG_FMT_UNKNOWN). This stops us from trying to recover
+	 * a dirty log created in IRIX.
+	 */
+	if (unlikely(INT_GET(head->h_fmt, ARCH_CONVERT) != XLOG_FMT)) {
+		xlog_warn(
+	"XFS: dirty log written in incompatible format - can't recover");
+		xlog_header_check_dump(mp, head);
+		XFS_ERROR_REPORT("xlog_header_check_recover(1)",
+				 XFS_ERRLEVEL_HIGH, mp);
+		return XFS_ERROR(EFSCORRUPTED);
+	} else if (unlikely(!uuid_equal(&mp->m_sb.sb_uuid, &head->h_fs_uuid))) {
+		xlog_warn(
+	"XFS: dirty log entry has mismatched uuid - can't recover");
+		xlog_header_check_dump(mp, head);
+		XFS_ERROR_REPORT("xlog_header_check_recover(2)",
+				 XFS_ERRLEVEL_HIGH, mp);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+	return 0;
+}
+
+/*
+ * read the head block of the log and check the header
+ */
+STATIC int
+xlog_header_check_mount(
+	xfs_mount_t		*mp,
+	xlog_rec_header_t	*head)
+{
+	ASSERT(INT_GET(head->h_magicno, ARCH_CONVERT) == XLOG_HEADER_MAGIC_NUM);
+
+	if (uuid_is_nil(&head->h_fs_uuid)) {
+		/*
+		 * IRIX doesn't write the h_fs_uuid or h_fmt fields. If
+		 * h_fs_uuid is nil, we assume this log was last mounted
+		 * by IRIX and continue.
+		 */
+		xlog_warn("XFS: nil uuid in log - IRIX style log");
+	} else if (unlikely(!uuid_equal(&mp->m_sb.sb_uuid, &head->h_fs_uuid))) {
+		xlog_warn("XFS: log has mismatched uuid - can't recover");
+		xlog_header_check_dump(mp, head);
+		XFS_ERROR_REPORT("xlog_header_check_mount",
+				 XFS_ERRLEVEL_HIGH, mp);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+	return 0;
+}
+
+STATIC void
+xlog_recover_iodone(
+	struct xfs_buf	*bp)
+{
+	xfs_mount_t	*mp;
+
+	ASSERT(XFS_BUF_FSPRIVATE(bp, void *));
+
+	if (XFS_BUF_GETERROR(bp)) {
+		/*
+		 * We're not going to bother about retrying
+		 * this during recovery. One strike!
+		 */
+		mp = XFS_BUF_FSPRIVATE(bp, xfs_mount_t *);
+		xfs_ioerror_alert("xlog_recover_iodone",
+				  mp, bp, XFS_BUF_ADDR(bp));
+		xfs_force_shutdown(mp, XFS_METADATA_IO_ERROR);
+	}
+	XFS_BUF_SET_FSPRIVATE(bp, NULL);
+	XFS_BUF_CLR_IODONE_FUNC(bp);
+	xfs_biodone(bp);
+}
+
+/*
+ * This routine finds (to an approximation) the first block in the physical
+ * log which contains the given cycle.  It uses a binary search algorithm.
+ * Note that the algorithm can not be perfect because the disk will not
+ * necessarily be perfect.
+ */
+int
+xlog_find_cycle_start(
+	xlog_t		*log,
+	xfs_buf_t	*bp,
+	xfs_daddr_t	first_blk,
+	xfs_daddr_t	*last_blk,
+	uint		cycle)
+{
+	xfs_caddr_t	offset;
+	xfs_daddr_t	mid_blk;
+	uint		mid_cycle;
+	int		error;
+
+	mid_blk = BLK_AVG(first_blk, *last_blk);
+	while (mid_blk != first_blk && mid_blk != *last_blk) {
+		if ((error = xlog_bread(log, mid_blk, 1, bp)))
+			return error;
+		offset = xlog_align(log, mid_blk, 1, bp);
+		mid_cycle = GET_CYCLE(offset, ARCH_CONVERT);
+		if (mid_cycle == cycle) {
+			*last_blk = mid_blk;
+			/* last_half_cycle == mid_cycle */
+		} else {
+			first_blk = mid_blk;
+			/* first_half_cycle == mid_cycle */
+		}
+		mid_blk = BLK_AVG(first_blk, *last_blk);
+	}
+	ASSERT((mid_blk == first_blk && mid_blk+1 == *last_blk) ||
+	       (mid_blk == *last_blk && mid_blk-1 == first_blk));
+
+	return 0;
+}
+
+/*
+ * Check that the range of blocks does not contain the cycle number
+ * given.  The scan needs to occur from front to back and the ptr into the
+ * region must be updated since a later routine will need to perform another
+ * test.  If the region is completely good, we end up returning the same
+ * last block number.
+ *
+ * Set blkno to -1 if we encounter no errors.  This is an invalid block number
+ * since we don't ever expect logs to get this large.
+ */
+STATIC int
+xlog_find_verify_cycle(
+	xlog_t		*log,
+	xfs_daddr_t	start_blk,
+	int		nbblks,
+	uint		stop_on_cycle_no,
+	xfs_daddr_t	*new_blk)
+{
+	xfs_daddr_t	i, j;
+	uint		cycle;
+	xfs_buf_t	*bp;
+	xfs_daddr_t	bufblks;
+	xfs_caddr_t	buf = NULL;
+	int		error = 0;
+
+	bufblks = 1 << ffs(nbblks);
+
+	while (!(bp = xlog_get_bp(log, bufblks))) {
+		/* can't get enough memory to do everything in one big buffer */
+		bufblks >>= 1;
+		if (bufblks <= log->l_sectbb_log)
+			return ENOMEM;
+	}
+
+	for (i = start_blk; i < start_blk + nbblks; i += bufblks) {
+		int	bcount;
+
+		bcount = min(bufblks, (start_blk + nbblks - i));
+
+		if ((error = xlog_bread(log, i, bcount, bp)))
+			goto out;
+
+		buf = xlog_align(log, i, bcount, bp);
+		for (j = 0; j < bcount; j++) {
+			cycle = GET_CYCLE(buf, ARCH_CONVERT);
+			if (cycle == stop_on_cycle_no) {
+				*new_blk = i+j;
+				goto out;
+			}
+
+			buf += BBSIZE;
+		}
+	}
+
+	*new_blk = -1;
+
+out:
+	xlog_put_bp(bp);
+	return error;
+}
+
+/*
+ * Potentially backup over partial log record write.
+ *
+ * In the typical case, last_blk is the number of the block directly after
+ * a good log record.  Therefore, we subtract one to get the block number
+ * of the last block in the given buffer.  extra_bblks contains the number
+ * of blocks we would have read on a previous read.  This happens when the
+ * last log record is split over the end of the physical log.
+ *
+ * extra_bblks is the number of blocks potentially verified on a previous
+ * call to this routine.
+ */
+STATIC int
+xlog_find_verify_log_record(
+	xlog_t			*log,
+	xfs_daddr_t		start_blk,
+	xfs_daddr_t		*last_blk,
+	int			extra_bblks)
+{
+	xfs_daddr_t		i;
+	xfs_buf_t		*bp;
+	xfs_caddr_t		offset = NULL;
+	xlog_rec_header_t	*head = NULL;
+	int			error = 0;
+	int			smallmem = 0;
+	int			num_blks = *last_blk - start_blk;
+	int			xhdrs;
+
+	ASSERT(start_blk != 0 || *last_blk != start_blk);
+
+	if (!(bp = xlog_get_bp(log, num_blks))) {
+		if (!(bp = xlog_get_bp(log, 1)))
+			return ENOMEM;
+		smallmem = 1;
+	} else {
+		if ((error = xlog_bread(log, start_blk, num_blks, bp)))
+			goto out;
+		offset = xlog_align(log, start_blk, num_blks, bp);
+		offset += ((num_blks - 1) << BBSHIFT);
+	}
+
+	for (i = (*last_blk) - 1; i >= 0; i--) {
+		if (i < start_blk) {
+			/* valid log record not found */
+			xlog_warn(
+		"XFS: Log inconsistent (didn't find previous header)");
+			ASSERT(0);
+			error = XFS_ERROR(EIO);
+			goto out;
+		}
+
+		if (smallmem) {
+			if ((error = xlog_bread(log, i, 1, bp)))
+				goto out;
+			offset = xlog_align(log, i, 1, bp);
+		}
+
+		head = (xlog_rec_header_t *)offset;
+
+		if (XLOG_HEADER_MAGIC_NUM ==
+		    INT_GET(head->h_magicno, ARCH_CONVERT))
+			break;
+
+		if (!smallmem)
+			offset -= BBSIZE;
+	}
+
+	/*
+	 * We hit the beginning of the physical log & still no header.  Return
+	 * to caller.  If caller can handle a return of -1, then this routine
+	 * will be called again for the end of the physical log.
+	 */
+	if (i == -1) {
+		error = -1;
+		goto out;
+	}
+
+	/*
+	 * We have the final block of the good log (the first block
+	 * of the log record _before_ the head. So we check the uuid.
+	 */
+	if ((error = xlog_header_check_mount(log->l_mp, head)))
+		goto out;
+
+	/*
+	 * We may have found a log record header before we expected one.
+	 * last_blk will be the 1st block # with a given cycle #.  We may end
+	 * up reading an entire log record.  In this case, we don't want to
+	 * reset last_blk.  Only when last_blk points in the middle of a log
+	 * record do we update last_blk.
+	 */
+	if (XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb)) {
+		uint	h_size = INT_GET(head->h_size, ARCH_CONVERT);
+
+		xhdrs = h_size / XLOG_HEADER_CYCLE_SIZE;
+		if (h_size % XLOG_HEADER_CYCLE_SIZE)
+			xhdrs++;
+	} else {
+		xhdrs = 1;
+	}
+
+	if (*last_blk - i + extra_bblks
+			!= BTOBB(INT_GET(head->h_len, ARCH_CONVERT)) + xhdrs)
+		*last_blk = i;
+
+out:
+	xlog_put_bp(bp);
+	return error;
+}
+
+/*
+ * Head is defined to be the point of the log where the next log write
+ * write could go.  This means that incomplete LR writes at the end are
+ * eliminated when calculating the head.  We aren't guaranteed that previous
+ * LR have complete transactions.  We only know that a cycle number of
+ * current cycle number -1 won't be present in the log if we start writing
+ * from our current block number.
+ *
+ * last_blk contains the block number of the first block with a given
+ * cycle number.
+ *
+ * Return: zero if normal, non-zero if error.
+ */
+int
+xlog_find_head(
+	xlog_t 		*log,
+	xfs_daddr_t	*return_head_blk)
+{
+	xfs_buf_t	*bp;
+	xfs_caddr_t	offset;
+	xfs_daddr_t	new_blk, first_blk, start_blk, last_blk, head_blk;
+	int		num_scan_bblks;
+	uint		first_half_cycle, last_half_cycle;
+	uint		stop_on_cycle;
+	int		error, log_bbnum = log->l_logBBsize;
+
+	/* Is the end of the log device zeroed? */
+	if ((error = xlog_find_zeroed(log, &first_blk)) == -1) {
+		*return_head_blk = first_blk;
+
+		/* Is the whole lot zeroed? */
+		if (!first_blk) {
+			/* Linux XFS shouldn't generate totally zeroed logs -
+			 * mkfs etc write a dummy unmount record to a fresh
+			 * log so we can store the uuid in there
+			 */
+			xlog_warn("XFS: totally zeroed log");
+		}
+
+		return 0;
+	} else if (error) {
+		xlog_warn("XFS: empty log check failed");
+		return error;
+	}
+
+	first_blk = 0;			/* get cycle # of 1st block */
+	bp = xlog_get_bp(log, 1);
+	if (!bp)
+		return ENOMEM;
+	if ((error = xlog_bread(log, 0, 1, bp)))
+		goto bp_err;
+	offset = xlog_align(log, 0, 1, bp);
+	first_half_cycle = GET_CYCLE(offset, ARCH_CONVERT);
+
+	last_blk = head_blk = log_bbnum - 1;	/* get cycle # of last block */
+	if ((error = xlog_bread(log, last_blk, 1, bp)))
+		goto bp_err;
+	offset = xlog_align(log, last_blk, 1, bp);
+	last_half_cycle = GET_CYCLE(offset, ARCH_CONVERT);
+	ASSERT(last_half_cycle != 0);
+
+	/*
+	 * If the 1st half cycle number is equal to the last half cycle number,
+	 * then the entire log is stamped with the same cycle number.  In this
+	 * case, head_blk can't be set to zero (which makes sense).  The below
+	 * math doesn't work out properly with head_blk equal to zero.  Instead,
+	 * we set it to log_bbnum which is an invalid block number, but this
+	 * value makes the math correct.  If head_blk doesn't changed through
+	 * all the tests below, *head_blk is set to zero at the very end rather
+	 * than log_bbnum.  In a sense, log_bbnum and zero are the same block
+	 * in a circular file.
+	 */
+	if (first_half_cycle == last_half_cycle) {
+		/*
+		 * In this case we believe that the entire log should have
+		 * cycle number last_half_cycle.  We need to scan backwards
+		 * from the end verifying that there are no holes still
+		 * containing last_half_cycle - 1.  If we find such a hole,
+		 * then the start of that hole will be the new head.  The
+		 * simple case looks like
+		 *        x | x ... | x - 1 | x
+		 * Another case that fits this picture would be
+		 *        x | x + 1 | x ... | x
+		 * In this case the head really is somwhere at the end of the
+		 * log, as one of the latest writes at the beginning was
+		 * incomplete.
+		 * One more case is
+		 *        x | x + 1 | x ... | x - 1 | x
+		 * This is really the combination of the above two cases, and
+		 * the head has to end up at the start of the x-1 hole at the
+		 * end of the log.
+		 *
+		 * In the 256k log case, we will read from the beginning to the
+		 * end of the log and search for cycle numbers equal to x-1.
+		 * We don't worry about the x+1 blocks that we encounter,
+		 * because we know that they cannot be the head since the log
+		 * started with x.
+		 */
+		head_blk = log_bbnum;
+		stop_on_cycle = last_half_cycle - 1;
+	} else {
+		/*
+		 * In this case we want to find the first block with cycle
+		 * number matching last_half_cycle.  We expect the log to be
+		 * some variation on
+		 *        x + 1 ... | x ...
+		 * The first block with cycle number x (last_half_cycle) will
+		 * be where the new head belongs.  First we do a binary search
+		 * for the first occurrence of last_half_cycle.  The binary
+		 * search may not be totally accurate, so then we scan back
+		 * from there looking for occurrences of last_half_cycle before
+		 * us.  If that backwards scan wraps around the beginning of
+		 * the log, then we look for occurrences of last_half_cycle - 1
+		 * at the end of the log.  The cases we're looking for look
+		 * like
+		 *        x + 1 ... | x | x + 1 | x ...
+		 *                               ^ binary search stopped here
+		 * or
+		 *        x + 1 ... | x ... | x - 1 | x
+		 *        <---------> less than scan distance
+		 */
+		stop_on_cycle = last_half_cycle;
+		if ((error = xlog_find_cycle_start(log, bp, first_blk,
+						&head_blk, last_half_cycle)))
+			goto bp_err;
+	}
+
+	/*
+	 * Now validate the answer.  Scan back some number of maximum possible
+	 * blocks and make sure each one has the expected cycle number.  The
+	 * maximum is determined by the total possible amount of buffering
+	 * in the in-core log.  The following number can be made tighter if
+	 * we actually look at the block size of the filesystem.
+	 */
+	num_scan_bblks = XLOG_TOTAL_REC_SHIFT(log);
+	if (head_blk >= num_scan_bblks) {
+		/*
+		 * We are guaranteed that the entire check can be performed
+		 * in one buffer.
+		 */
+		start_blk = head_blk - num_scan_bblks;
+		if ((error = xlog_find_verify_cycle(log,
+						start_blk, num_scan_bblks,
+						stop_on_cycle, &new_blk)))
+			goto bp_err;
+		if (new_blk != -1)
+			head_blk = new_blk;
+	} else {		/* need to read 2 parts of log */
+		/*
+		 * We are going to scan backwards in the log in two parts.
+		 * First we scan the physical end of the log.  In this part
+		 * of the log, we are looking for blocks with cycle number
+		 * last_half_cycle - 1.
+		 * If we find one, then we know that the log starts there, as
+		 * we've found a hole that didn't get written in going around
+		 * the end of the physical log.  The simple case for this is
+		 *        x + 1 ... | x ... | x - 1 | x
+		 *        <---------> less than scan distance
+		 * If all of the blocks at the end of the log have cycle number
+		 * last_half_cycle, then we check the blocks at the start of
+		 * the log looking for occurrences of last_half_cycle.  If we
+		 * find one, then our current estimate for the location of the
+		 * first occurrence of last_half_cycle is wrong and we move
+		 * back to the hole we've found.  This case looks like
+		 *        x + 1 ... | x | x + 1 | x ...
+		 *                               ^ binary search stopped here
+		 * Another case we need to handle that only occurs in 256k
+		 * logs is
+		 *        x + 1 ... | x ... | x+1 | x ...
+		 *                   ^ binary search stops here
+		 * In a 256k log, the scan at the end of the log will see the
+		 * x + 1 blocks.  We need to skip past those since that is
+		 * certainly not the head of the log.  By searching for
+		 * last_half_cycle-1 we accomplish that.
+		 */
+		start_blk = log_bbnum - num_scan_bblks + head_blk;
+		ASSERT(head_blk <= INT_MAX &&
+			(xfs_daddr_t) num_scan_bblks - head_blk >= 0);
+		if ((error = xlog_find_verify_cycle(log, start_blk,
+					num_scan_bblks - (int)head_blk,
+					(stop_on_cycle - 1), &new_blk)))
+			goto bp_err;
+		if (new_blk != -1) {
+			head_blk = new_blk;
+			goto bad_blk;
+		}
+
+		/*
+		 * Scan beginning of log now.  The last part of the physical
+		 * log is good.  This scan needs to verify that it doesn't find
+		 * the last_half_cycle.
+		 */
+		start_blk = 0;
+		ASSERT(head_blk <= INT_MAX);
+		if ((error = xlog_find_verify_cycle(log,
+					start_blk, (int)head_blk,
+					stop_on_cycle, &new_blk)))
+			goto bp_err;
+		if (new_blk != -1)
+			head_blk = new_blk;
+	}
+
+ bad_blk:
+	/*
+	 * Now we need to make sure head_blk is not pointing to a block in
+	 * the middle of a log record.
+	 */
+	num_scan_bblks = XLOG_REC_SHIFT(log);
+	if (head_blk >= num_scan_bblks) {
+		start_blk = head_blk - num_scan_bblks; /* don't read head_blk */
+
+		/* start ptr at last block ptr before head_blk */
+		if ((error = xlog_find_verify_log_record(log, start_blk,
+							&head_blk, 0)) == -1) {
+			error = XFS_ERROR(EIO);
+			goto bp_err;
+		} else if (error)
+			goto bp_err;
+	} else {
+		start_blk = 0;
+		ASSERT(head_blk <= INT_MAX);
+		if ((error = xlog_find_verify_log_record(log, start_blk,
+							&head_blk, 0)) == -1) {
+			/* We hit the beginning of the log during our search */
+			start_blk = log_bbnum - num_scan_bblks + head_blk;
+			new_blk = log_bbnum;
+			ASSERT(start_blk <= INT_MAX &&
+				(xfs_daddr_t) log_bbnum-start_blk >= 0);
+			ASSERT(head_blk <= INT_MAX);
+			if ((error = xlog_find_verify_log_record(log,
+							start_blk, &new_blk,
+							(int)head_blk)) == -1) {
+				error = XFS_ERROR(EIO);
+				goto bp_err;
+			} else if (error)
+				goto bp_err;
+			if (new_blk != log_bbnum)
+				head_blk = new_blk;
+		} else if (error)
+			goto bp_err;
+	}
+
+	xlog_put_bp(bp);
+	if (head_blk == log_bbnum)
+		*return_head_blk = 0;
+	else
+		*return_head_blk = head_blk;
+	/*
+	 * When returning here, we have a good block number.  Bad block
+	 * means that during a previous crash, we didn't have a clean break
+	 * from cycle number N to cycle number N-1.  In this case, we need
+	 * to find the first block with cycle number N-1.
+	 */
+	return 0;
+
+ bp_err:
+	xlog_put_bp(bp);
+
+	if (error)
+	    xlog_warn("XFS: failed to find log head");
+	return error;
+}
+
+/*
+ * Find the sync block number or the tail of the log.
+ *
+ * This will be the block number of the last record to have its
+ * associated buffers synced to disk.  Every log record header has
+ * a sync lsn embedded in it.  LSNs hold block numbers, so it is easy
+ * to get a sync block number.  The only concern is to figure out which
+ * log record header to believe.
+ *
+ * The following algorithm uses the log record header with the largest
+ * lsn.  The entire log record does not need to be valid.  We only care
+ * that the header is valid.
+ *
+ * We could speed up search by using current head_blk buffer, but it is not
+ * available.
+ */
+int
+xlog_find_tail(
+	xlog_t			*log,
+	xfs_daddr_t		*head_blk,
+	xfs_daddr_t		*tail_blk,
+	int			readonly)
+{
+	xlog_rec_header_t	*rhead;
+	xlog_op_header_t	*op_head;
+	xfs_caddr_t		offset = NULL;
+	xfs_buf_t		*bp;
+	int			error, i, found;
+	xfs_daddr_t		umount_data_blk;
+	xfs_daddr_t		after_umount_blk;
+	xfs_lsn_t		tail_lsn;
+	int			hblks;
+
+	found = 0;
+
+	/*
+	 * Find previous log record
+	 */
+	if ((error = xlog_find_head(log, head_blk)))
+		return error;
+
+	bp = xlog_get_bp(log, 1);
+	if (!bp)
+		return ENOMEM;
+	if (*head_blk == 0) {				/* special case */
+		if ((error = xlog_bread(log, 0, 1, bp)))
+			goto bread_err;
+		offset = xlog_align(log, 0, 1, bp);
+		if (GET_CYCLE(offset, ARCH_CONVERT) == 0) {
+			*tail_blk = 0;
+			/* leave all other log inited values alone */
+			goto exit;
+		}
+	}
+
+	/*
+	 * Search backwards looking for log record header block
+	 */
+	ASSERT(*head_blk < INT_MAX);
+	for (i = (int)(*head_blk) - 1; i >= 0; i--) {
+		if ((error = xlog_bread(log, i, 1, bp)))
+			goto bread_err;
+		offset = xlog_align(log, i, 1, bp);
+		if (XLOG_HEADER_MAGIC_NUM ==
+		    INT_GET(*(uint *)offset, ARCH_CONVERT)) {
+			found = 1;
+			break;
+		}
+	}
+	/*
+	 * If we haven't found the log record header block, start looking
+	 * again from the end of the physical log.  XXXmiken: There should be
+	 * a check here to make sure we didn't search more than N blocks in
+	 * the previous code.
+	 */
+	if (!found) {
+		for (i = log->l_logBBsize - 1; i >= (int)(*head_blk); i--) {
+			if ((error = xlog_bread(log, i, 1, bp)))
+				goto bread_err;
+			offset = xlog_align(log, i, 1, bp);
+			if (XLOG_HEADER_MAGIC_NUM ==
+			    INT_GET(*(uint*)offset, ARCH_CONVERT)) {
+				found = 2;
+				break;
+			}
+		}
+	}
+	if (!found) {
+		xlog_warn("XFS: xlog_find_tail: couldn't find sync record");
+		ASSERT(0);
+		return XFS_ERROR(EIO);
+	}
+
+	/* find blk_no of tail of log */
+	rhead = (xlog_rec_header_t *)offset;
+	*tail_blk = BLOCK_LSN(rhead->h_tail_lsn, ARCH_CONVERT);
+
+	/*
+	 * Reset log values according to the state of the log when we
+	 * crashed.  In the case where head_blk == 0, we bump curr_cycle
+	 * one because the next write starts a new cycle rather than
+	 * continuing the cycle of the last good log record.  At this
+	 * point we have guaranteed that all partial log records have been
+	 * accounted for.  Therefore, we know that the last good log record
+	 * written was complete and ended exactly on the end boundary
+	 * of the physical log.
+	 */
+	log->l_prev_block = i;
+	log->l_curr_block = (int)*head_blk;
+	log->l_curr_cycle = INT_GET(rhead->h_cycle, ARCH_CONVERT);
+	if (found == 2)
+		log->l_curr_cycle++;
+	log->l_tail_lsn = INT_GET(rhead->h_tail_lsn, ARCH_CONVERT);
+	log->l_last_sync_lsn = INT_GET(rhead->h_lsn, ARCH_CONVERT);
+	log->l_grant_reserve_cycle = log->l_curr_cycle;
+	log->l_grant_reserve_bytes = BBTOB(log->l_curr_block);
+	log->l_grant_write_cycle = log->l_curr_cycle;
+	log->l_grant_write_bytes = BBTOB(log->l_curr_block);
+
+	/*
+	 * Look for unmount record.  If we find it, then we know there
+	 * was a clean unmount.  Since 'i' could be the last block in
+	 * the physical log, we convert to a log block before comparing
+	 * to the head_blk.
+	 *
+	 * Save the current tail lsn to use to pass to
+	 * xlog_clear_stale_blocks() below.  We won't want to clear the
+	 * unmount record if there is one, so we pass the lsn of the
+	 * unmount record rather than the block after it.
+	 */
+	if (XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb)) {
+		int	h_size = INT_GET(rhead->h_size, ARCH_CONVERT);
+		int	h_version = INT_GET(rhead->h_version, ARCH_CONVERT);
+
+		if ((h_version & XLOG_VERSION_2) &&
+		    (h_size > XLOG_HEADER_CYCLE_SIZE)) {
+			hblks = h_size / XLOG_HEADER_CYCLE_SIZE;
+			if (h_size % XLOG_HEADER_CYCLE_SIZE)
+				hblks++;
+		} else {
+			hblks = 1;
+		}
+	} else {
+		hblks = 1;
+	}
+	after_umount_blk = (i + hblks + (int)
+		BTOBB(INT_GET(rhead->h_len, ARCH_CONVERT))) % log->l_logBBsize;
+	tail_lsn = log->l_tail_lsn;
+	if (*head_blk == after_umount_blk &&
+	    INT_GET(rhead->h_num_logops, ARCH_CONVERT) == 1) {
+		umount_data_blk = (i + hblks) % log->l_logBBsize;
+		if ((error = xlog_bread(log, umount_data_blk, 1, bp))) {
+			goto bread_err;
+		}
+		offset = xlog_align(log, umount_data_blk, 1, bp);
+		op_head = (xlog_op_header_t *)offset;
+		if (op_head->oh_flags & XLOG_UNMOUNT_TRANS) {
+			/*
+			 * Set tail and last sync so that newly written
+			 * log records will point recovery to after the
+			 * current unmount record.
+			 */
+			ASSIGN_ANY_LSN(log->l_tail_lsn, log->l_curr_cycle,
+					after_umount_blk, ARCH_NOCONVERT);
+			ASSIGN_ANY_LSN(log->l_last_sync_lsn, log->l_curr_cycle,
+					after_umount_blk, ARCH_NOCONVERT);
+			*tail_blk = after_umount_blk;
+		}
+	}
+
+	/*
+	 * Make sure that there are no blocks in front of the head
+	 * with the same cycle number as the head.  This can happen
+	 * because we allow multiple outstanding log writes concurrently,
+	 * and the later writes might make it out before earlier ones.
+	 *
+	 * We use the lsn from before modifying it so that we'll never
+	 * overwrite the unmount record after a clean unmount.
+	 *
+	 * Do this only if we are going to recover the filesystem
+	 *
+	 * NOTE: This used to say "if (!readonly)"
+	 * However on Linux, we can & do recover a read-only filesystem.
+	 * We only skip recovery if NORECOVERY is specified on mount,
+	 * in which case we would not be here.
+	 *
+	 * But... if the -device- itself is readonly, just skip this.
+	 * We can't recover this device anyway, so it won't matter.
+	 */
+	if (!xfs_readonly_buftarg(log->l_mp->m_logdev_targp)) {
+		error = xlog_clear_stale_blocks(log, tail_lsn);
+	}
+
+bread_err:
+exit:
+	xlog_put_bp(bp);
+
+	if (error)
+		xlog_warn("XFS: failed to locate log tail");
+	return error;
+}
+
+/*
+ * Is the log zeroed at all?
+ *
+ * The last binary search should be changed to perform an X block read
+ * once X becomes small enough.  You can then search linearly through
+ * the X blocks.  This will cut down on the number of reads we need to do.
+ *
+ * If the log is partially zeroed, this routine will pass back the blkno
+ * of the first block with cycle number 0.  It won't have a complete LR
+ * preceding it.
+ *
+ * Return:
+ *	0  => the log is completely written to
+ *	-1 => use *blk_no as the first block of the log
+ *	>0 => error has occurred
+ */
+int
+xlog_find_zeroed(
+	xlog_t		*log,
+	xfs_daddr_t	*blk_no)
+{
+	xfs_buf_t	*bp;
+	xfs_caddr_t	offset;
+	uint	        first_cycle, last_cycle;
+	xfs_daddr_t	new_blk, last_blk, start_blk;
+	xfs_daddr_t     num_scan_bblks;
+	int	        error, log_bbnum = log->l_logBBsize;
+
+	/* check totally zeroed log */
+	bp = xlog_get_bp(log, 1);
+	if (!bp)
+		return ENOMEM;
+	if ((error = xlog_bread(log, 0, 1, bp)))
+		goto bp_err;
+	offset = xlog_align(log, 0, 1, bp);
+	first_cycle = GET_CYCLE(offset, ARCH_CONVERT);
+	if (first_cycle == 0) {		/* completely zeroed log */
+		*blk_no = 0;
+		xlog_put_bp(bp);
+		return -1;
+	}
+
+	/* check partially zeroed log */
+	if ((error = xlog_bread(log, log_bbnum-1, 1, bp)))
+		goto bp_err;
+	offset = xlog_align(log, log_bbnum-1, 1, bp);
+	last_cycle = GET_CYCLE(offset, ARCH_CONVERT);
+	if (last_cycle != 0) {		/* log completely written to */
+		xlog_put_bp(bp);
+		return 0;
+	} else if (first_cycle != 1) {
+		/*
+		 * If the cycle of the last block is zero, the cycle of
+		 * the first block must be 1. If it's not, maybe we're
+		 * not looking at a log... Bail out.
+		 */
+		xlog_warn("XFS: Log inconsistent or not a log (last==0, first!=1)");
+		return XFS_ERROR(EINVAL);
+	}
+
+	/* we have a partially zeroed log */
+	last_blk = log_bbnum-1;
+	if ((error = xlog_find_cycle_start(log, bp, 0, &last_blk, 0)))
+		goto bp_err;
+
+	/*
+	 * Validate the answer.  Because there is no way to guarantee that
+	 * the entire log is made up of log records which are the same size,
+	 * we scan over the defined maximum blocks.  At this point, the maximum
+	 * is not chosen to mean anything special.   XXXmiken
+	 */
+	num_scan_bblks = XLOG_TOTAL_REC_SHIFT(log);
+	ASSERT(num_scan_bblks <= INT_MAX);
+
+	if (last_blk < num_scan_bblks)
+		num_scan_bblks = last_blk;
+	start_blk = last_blk - num_scan_bblks;
+
+	/*
+	 * We search for any instances of cycle number 0 that occur before
+	 * our current estimate of the head.  What we're trying to detect is
+	 *        1 ... | 0 | 1 | 0...
+	 *                       ^ binary search ends here
+	 */
+	if ((error = xlog_find_verify_cycle(log, start_blk,
+					 (int)num_scan_bblks, 0, &new_blk)))
+		goto bp_err;
+	if (new_blk != -1)
+		last_blk = new_blk;
+
+	/*
+	 * Potentially backup over partial log record write.  We don't need
+	 * to search the end of the log because we know it is zero.
+	 */
+	if ((error = xlog_find_verify_log_record(log, start_blk,
+				&last_blk, 0)) == -1) {
+	    error = XFS_ERROR(EIO);
+	    goto bp_err;
+	} else if (error)
+	    goto bp_err;
+
+	*blk_no = last_blk;
+bp_err:
+	xlog_put_bp(bp);
+	if (error)
+		return error;
+	return -1;
+}
+
+/*
+ * These are simple subroutines used by xlog_clear_stale_blocks() below
+ * to initialize a buffer full of empty log record headers and write
+ * them into the log.
+ */
+STATIC void
+xlog_add_record(
+	xlog_t			*log,
+	xfs_caddr_t		buf,
+	int			cycle,
+	int			block,
+	int			tail_cycle,
+	int			tail_block)
+{
+	xlog_rec_header_t	*recp = (xlog_rec_header_t *)buf;
+
+	memset(buf, 0, BBSIZE);
+	INT_SET(recp->h_magicno, ARCH_CONVERT, XLOG_HEADER_MAGIC_NUM);
+	INT_SET(recp->h_cycle, ARCH_CONVERT, cycle);
+	INT_SET(recp->h_version, ARCH_CONVERT,
+			XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb) ? 2 : 1);
+	ASSIGN_ANY_LSN(recp->h_lsn, cycle, block, ARCH_CONVERT);
+	ASSIGN_ANY_LSN(recp->h_tail_lsn, tail_cycle, tail_block, ARCH_CONVERT);
+	INT_SET(recp->h_fmt, ARCH_CONVERT, XLOG_FMT);
+	memcpy(&recp->h_fs_uuid, &log->l_mp->m_sb.sb_uuid, sizeof(uuid_t));
+}
+
+STATIC int
+xlog_write_log_records(
+	xlog_t		*log,
+	int		cycle,
+	int		start_block,
+	int		blocks,
+	int		tail_cycle,
+	int		tail_block)
+{
+	xfs_caddr_t	offset;
+	xfs_buf_t	*bp;
+	int		balign, ealign;
+	int		sectbb = XLOG_SECTOR_ROUNDUP_BBCOUNT(log, 1);
+	int		end_block = start_block + blocks;
+	int		bufblks;
+	int		error = 0;
+	int		i, j = 0;
+
+	bufblks = 1 << ffs(blocks);
+	while (!(bp = xlog_get_bp(log, bufblks))) {
+		bufblks >>= 1;
+		if (bufblks <= log->l_sectbb_log)
+			return ENOMEM;
+	}
+
+	/* We may need to do a read at the start to fill in part of
+	 * the buffer in the starting sector not covered by the first
+	 * write below.
+	 */
+	balign = XLOG_SECTOR_ROUNDDOWN_BLKNO(log, start_block);
+	if (balign != start_block) {
+		if ((error = xlog_bread(log, start_block, 1, bp))) {
+			xlog_put_bp(bp);
+			return error;
+		}
+		j = start_block - balign;
+	}
+
+	for (i = start_block; i < end_block; i += bufblks) {
+		int		bcount, endcount;
+
+		bcount = min(bufblks, end_block - start_block);
+		endcount = bcount - j;
+
+		/* We may need to do a read at the end to fill in part of
+		 * the buffer in the final sector not covered by the write.
+		 * If this is the same sector as the above read, skip it.
+		 */
+		ealign = XLOG_SECTOR_ROUNDDOWN_BLKNO(log, end_block);
+		if (j == 0 && (start_block + endcount > ealign)) {
+			offset = XFS_BUF_PTR(bp);
+			balign = BBTOB(ealign - start_block);
+			XFS_BUF_SET_PTR(bp, offset + balign, BBTOB(sectbb));
+			if ((error = xlog_bread(log, ealign, sectbb, bp)))
+				break;
+			XFS_BUF_SET_PTR(bp, offset, bufblks);
+		}
+
+		offset = xlog_align(log, start_block, endcount, bp);
+		for (; j < endcount; j++) {
+			xlog_add_record(log, offset, cycle, i+j,
+					tail_cycle, tail_block);
+			offset += BBSIZE;
+		}
+		error = xlog_bwrite(log, start_block, endcount, bp);
+		if (error)
+			break;
+		start_block += endcount;
+		j = 0;
+	}
+	xlog_put_bp(bp);
+	return error;
+}
+
+/*
+ * This routine is called to blow away any incomplete log writes out
+ * in front of the log head.  We do this so that we won't become confused
+ * if we come up, write only a little bit more, and then crash again.
+ * If we leave the partial log records out there, this situation could
+ * cause us to think those partial writes are valid blocks since they
+ * have the current cycle number.  We get rid of them by overwriting them
+ * with empty log records with the old cycle number rather than the
+ * current one.
+ *
+ * The tail lsn is passed in rather than taken from
+ * the log so that we will not write over the unmount record after a
+ * clean unmount in a 512 block log.  Doing so would leave the log without
+ * any valid log records in it until a new one was written.  If we crashed
+ * during that time we would not be able to recover.
+ */
+STATIC int
+xlog_clear_stale_blocks(
+	xlog_t		*log,
+	xfs_lsn_t	tail_lsn)
+{
+	int		tail_cycle, head_cycle;
+	int		tail_block, head_block;
+	int		tail_distance, max_distance;
+	int		distance;
+	int		error;
+
+	tail_cycle = CYCLE_LSN(tail_lsn, ARCH_NOCONVERT);
+	tail_block = BLOCK_LSN(tail_lsn, ARCH_NOCONVERT);
+	head_cycle = log->l_curr_cycle;
+	head_block = log->l_curr_block;
+
+	/*
+	 * Figure out the distance between the new head of the log
+	 * and the tail.  We want to write over any blocks beyond the
+	 * head that we may have written just before the crash, but
+	 * we don't want to overwrite the tail of the log.
+	 */
+	if (head_cycle == tail_cycle) {
+		/*
+		 * The tail is behind the head in the physical log,
+		 * so the distance from the head to the tail is the
+		 * distance from the head to the end of the log plus
+		 * the distance from the beginning of the log to the
+		 * tail.
+		 */
+		if (unlikely(head_block < tail_block || head_block >= log->l_logBBsize)) {
+			XFS_ERROR_REPORT("xlog_clear_stale_blocks(1)",
+					 XFS_ERRLEVEL_LOW, log->l_mp);
+			return XFS_ERROR(EFSCORRUPTED);
+		}
+		tail_distance = tail_block + (log->l_logBBsize - head_block);
+	} else {
+		/*
+		 * The head is behind the tail in the physical log,
+		 * so the distance from the head to the tail is just
+		 * the tail block minus the head block.
+		 */
+		if (unlikely(head_block >= tail_block || head_cycle != (tail_cycle + 1))){
+			XFS_ERROR_REPORT("xlog_clear_stale_blocks(2)",
+					 XFS_ERRLEVEL_LOW, log->l_mp);
+			return XFS_ERROR(EFSCORRUPTED);
+		}
+		tail_distance = tail_block - head_block;
+	}
+
+	/*
+	 * If the head is right up against the tail, we can't clear
+	 * anything.
+	 */
+	if (tail_distance <= 0) {
+		ASSERT(tail_distance == 0);
+		return 0;
+	}
+
+	max_distance = XLOG_TOTAL_REC_SHIFT(log);
+	/*
+	 * Take the smaller of the maximum amount of outstanding I/O
+	 * we could have and the distance to the tail to clear out.
+	 * We take the smaller so that we don't overwrite the tail and
+	 * we don't waste all day writing from the head to the tail
+	 * for no reason.
+	 */
+	max_distance = MIN(max_distance, tail_distance);
+
+	if ((head_block + max_distance) <= log->l_logBBsize) {
+		/*
+		 * We can stomp all the blocks we need to without
+		 * wrapping around the end of the log.  Just do it
+		 * in a single write.  Use the cycle number of the
+		 * current cycle minus one so that the log will look like:
+		 *     n ... | n - 1 ...
+		 */
+		error = xlog_write_log_records(log, (head_cycle - 1),
+				head_block, max_distance, tail_cycle,
+				tail_block);
+		if (error)
+			return error;
+	} else {
+		/*
+		 * We need to wrap around the end of the physical log in
+		 * order to clear all the blocks.  Do it in two separate
+		 * I/Os.  The first write should be from the head to the
+		 * end of the physical log, and it should use the current
+		 * cycle number minus one just like above.
+		 */
+		distance = log->l_logBBsize - head_block;
+		error = xlog_write_log_records(log, (head_cycle - 1),
+				head_block, distance, tail_cycle,
+				tail_block);
+
+		if (error)
+			return error;
+
+		/*
+		 * Now write the blocks at the start of the physical log.
+		 * This writes the remainder of the blocks we want to clear.
+		 * It uses the current cycle number since we're now on the
+		 * same cycle as the head so that we get:
+		 *    n ... n ... | n - 1 ...
+		 *    ^^^^^ blocks we're writing
+		 */
+		distance = max_distance - (log->l_logBBsize - head_block);
+		error = xlog_write_log_records(log, head_cycle, 0, distance,
+				tail_cycle, tail_block);
+		if (error)
+			return error;
+	}
+
+	return 0;
+}
+
+/******************************************************************************
+ *
+ *		Log recover routines
+ *
+ ******************************************************************************
+ */
+
+STATIC xlog_recover_t *
+xlog_recover_find_tid(
+	xlog_recover_t		*q,
+	xlog_tid_t		tid)
+{
+	xlog_recover_t		*p = q;
+
+	while (p != NULL) {
+		if (p->r_log_tid == tid)
+		    break;
+		p = p->r_next;
+	}
+	return p;
+}
+
+STATIC void
+xlog_recover_put_hashq(
+	xlog_recover_t		**q,
+	xlog_recover_t		*trans)
+{
+	trans->r_next = *q;
+	*q = trans;
+}
+
+STATIC void
+xlog_recover_add_item(
+	xlog_recover_item_t	**itemq)
+{
+	xlog_recover_item_t	*item;
+
+	item = kmem_zalloc(sizeof(xlog_recover_item_t), KM_SLEEP);
+	xlog_recover_insert_item_backq(itemq, item);
+}
+
+STATIC int
+xlog_recover_add_to_cont_trans(
+	xlog_recover_t		*trans,
+	xfs_caddr_t		dp,
+	int			len)
+{
+	xlog_recover_item_t	*item;
+	xfs_caddr_t		ptr, old_ptr;
+	int			old_len;
+
+	item = trans->r_itemq;
+	if (item == 0) {
+		/* finish copying rest of trans header */
+		xlog_recover_add_item(&trans->r_itemq);
+		ptr = (xfs_caddr_t) &trans->r_theader +
+				sizeof(xfs_trans_header_t) - len;
+		memcpy(ptr, dp, len); /* d, s, l */
+		return 0;
+	}
+	item = item->ri_prev;
+
+	old_ptr = item->ri_buf[item->ri_cnt-1].i_addr;
+	old_len = item->ri_buf[item->ri_cnt-1].i_len;
+
+	ptr = kmem_realloc(old_ptr, len+old_len, old_len, 0);
+	memcpy(&ptr[old_len], dp, len); /* d, s, l */
+	item->ri_buf[item->ri_cnt-1].i_len += len;
+	item->ri_buf[item->ri_cnt-1].i_addr = ptr;
+	return 0;
+}
+
+/*
+ * The next region to add is the start of a new region.  It could be
+ * a whole region or it could be the first part of a new region.  Because
+ * of this, the assumption here is that the type and size fields of all
+ * format structures fit into the first 32 bits of the structure.
+ *
+ * This works because all regions must be 32 bit aligned.  Therefore, we
+ * either have both fields or we have neither field.  In the case we have
+ * neither field, the data part of the region is zero length.  We only have
+ * a log_op_header and can throw away the header since a new one will appear
+ * later.  If we have at least 4 bytes, then we can determine how many regions
+ * will appear in the current log item.
+ */
+STATIC int
+xlog_recover_add_to_trans(
+	xlog_recover_t		*trans,
+	xfs_caddr_t		dp,
+	int			len)
+{
+	xfs_inode_log_format_t	*in_f;			/* any will do */
+	xlog_recover_item_t	*item;
+	xfs_caddr_t		ptr;
+
+	if (!len)
+		return 0;
+	item = trans->r_itemq;
+	if (item == 0) {
+		ASSERT(*(uint *)dp == XFS_TRANS_HEADER_MAGIC);
+		if (len == sizeof(xfs_trans_header_t))
+			xlog_recover_add_item(&trans->r_itemq);
+		memcpy(&trans->r_theader, dp, len); /* d, s, l */
+		return 0;
+	}
+
+	ptr = kmem_alloc(len, KM_SLEEP);
+	memcpy(ptr, dp, len);
+	in_f = (xfs_inode_log_format_t *)ptr;
+
+	if (item->ri_prev->ri_total != 0 &&
+	     item->ri_prev->ri_total == item->ri_prev->ri_cnt) {
+		xlog_recover_add_item(&trans->r_itemq);
+	}
+	item = trans->r_itemq;
+	item = item->ri_prev;
+
+	if (item->ri_total == 0) {		/* first region to be added */
+		item->ri_total	= in_f->ilf_size;
+		ASSERT(item->ri_total <= XLOG_MAX_REGIONS_IN_ITEM);
+		item->ri_buf = kmem_zalloc((item->ri_total *
+					    sizeof(xfs_log_iovec_t)), KM_SLEEP);
+	}
+	ASSERT(item->ri_total > item->ri_cnt);
+	/* Description region is ri_buf[0] */
+	item->ri_buf[item->ri_cnt].i_addr = ptr;
+	item->ri_buf[item->ri_cnt].i_len  = len;
+	item->ri_cnt++;
+	return 0;
+}
+
+STATIC void
+xlog_recover_new_tid(
+	xlog_recover_t		**q,
+	xlog_tid_t		tid,
+	xfs_lsn_t		lsn)
+{
+	xlog_recover_t		*trans;
+
+	trans = kmem_zalloc(sizeof(xlog_recover_t), KM_SLEEP);
+	trans->r_log_tid   = tid;
+	trans->r_lsn	   = lsn;
+	xlog_recover_put_hashq(q, trans);
+}
+
+STATIC int
+xlog_recover_unlink_tid(
+	xlog_recover_t		**q,
+	xlog_recover_t		*trans)
+{
+	xlog_recover_t		*tp;
+	int			found = 0;
+
+	ASSERT(trans != 0);
+	if (trans == *q) {
+		*q = (*q)->r_next;
+	} else {
+		tp = *q;
+		while (tp != 0) {
+			if (tp->r_next == trans) {
+				found = 1;
+				break;
+			}
+			tp = tp->r_next;
+		}
+		if (!found) {
+			xlog_warn(
+			     "XFS: xlog_recover_unlink_tid: trans not found");
+			ASSERT(0);
+			return XFS_ERROR(EIO);
+		}
+		tp->r_next = tp->r_next->r_next;
+	}
+	return 0;
+}
+
+STATIC void
+xlog_recover_insert_item_backq(
+	xlog_recover_item_t	**q,
+	xlog_recover_item_t	*item)
+{
+	if (*q == 0) {
+		item->ri_prev = item->ri_next = item;
+		*q = item;
+	} else {
+		item->ri_next		= *q;
+		item->ri_prev		= (*q)->ri_prev;
+		(*q)->ri_prev		= item;
+		item->ri_prev->ri_next	= item;
+	}
+}
+
+STATIC void
+xlog_recover_insert_item_frontq(
+	xlog_recover_item_t	**q,
+	xlog_recover_item_t	*item)
+{
+	xlog_recover_insert_item_backq(q, item);
+	*q = item;
+}
+
+STATIC int
+xlog_recover_reorder_trans(
+	xlog_t			*log,
+	xlog_recover_t		*trans)
+{
+	xlog_recover_item_t	*first_item, *itemq, *itemq_next;
+	xfs_buf_log_format_t	*buf_f;
+	xfs_buf_log_format_v1_t	*obuf_f;
+	ushort			flags = 0;
+
+	first_item = itemq = trans->r_itemq;
+	trans->r_itemq = NULL;
+	do {
+		itemq_next = itemq->ri_next;
+		buf_f = (xfs_buf_log_format_t *)itemq->ri_buf[0].i_addr;
+		switch (ITEM_TYPE(itemq)) {
+		case XFS_LI_BUF:
+			flags = buf_f->blf_flags;
+			break;
+		case XFS_LI_6_1_BUF:
+		case XFS_LI_5_3_BUF:
+			obuf_f = (xfs_buf_log_format_v1_t*)buf_f;
+			flags = obuf_f->blf_flags;
+			break;
+		}
+
+		switch (ITEM_TYPE(itemq)) {
+		case XFS_LI_BUF:
+		case XFS_LI_6_1_BUF:
+		case XFS_LI_5_3_BUF:
+			if (!(flags & XFS_BLI_CANCEL)) {
+				xlog_recover_insert_item_frontq(&trans->r_itemq,
+								itemq);
+				break;
+			}
+		case XFS_LI_INODE:
+		case XFS_LI_6_1_INODE:
+		case XFS_LI_5_3_INODE:
+		case XFS_LI_DQUOT:
+		case XFS_LI_QUOTAOFF:
+		case XFS_LI_EFD:
+		case XFS_LI_EFI:
+			xlog_recover_insert_item_backq(&trans->r_itemq, itemq);
+			break;
+		default:
+			xlog_warn(
+	"XFS: xlog_recover_reorder_trans: unrecognized type of log operation");
+			ASSERT(0);
+			return XFS_ERROR(EIO);
+		}
+		itemq = itemq_next;
+	} while (first_item != itemq);
+	return 0;
+}
+
+/*
+ * Build up the table of buf cancel records so that we don't replay
+ * cancelled data in the second pass.  For buffer records that are
+ * not cancel records, there is nothing to do here so we just return.
+ *
+ * If we get a cancel record which is already in the table, this indicates
+ * that the buffer was cancelled multiple times.  In order to ensure
+ * that during pass 2 we keep the record in the table until we reach its
+ * last occurrence in the log, we keep a reference count in the cancel
+ * record in the table to tell us how many times we expect to see this
+ * record during the second pass.
+ */
+STATIC void
+xlog_recover_do_buffer_pass1(
+	xlog_t			*log,
+	xfs_buf_log_format_t	*buf_f)
+{
+	xfs_buf_cancel_t	*bcp;
+	xfs_buf_cancel_t	*nextp;
+	xfs_buf_cancel_t	*prevp;
+	xfs_buf_cancel_t	**bucket;
+	xfs_buf_log_format_v1_t	*obuf_f;
+	xfs_daddr_t		blkno = 0;
+	uint			len = 0;
+	ushort			flags = 0;
+
+	switch (buf_f->blf_type) {
+	case XFS_LI_BUF:
+		blkno = buf_f->blf_blkno;
+		len = buf_f->blf_len;
+		flags = buf_f->blf_flags;
+		break;
+	case XFS_LI_6_1_BUF:
+	case XFS_LI_5_3_BUF:
+		obuf_f = (xfs_buf_log_format_v1_t*)buf_f;
+		blkno = (xfs_daddr_t) obuf_f->blf_blkno;
+		len = obuf_f->blf_len;
+		flags = obuf_f->blf_flags;
+		break;
+	}
+
+	/*
+	 * If this isn't a cancel buffer item, then just return.
+	 */
+	if (!(flags & XFS_BLI_CANCEL))
+		return;
+
+	/*
+	 * Insert an xfs_buf_cancel record into the hash table of
+	 * them.  If there is already an identical record, bump
+	 * its reference count.
+	 */
+	bucket = &log->l_buf_cancel_table[(__uint64_t)blkno %
+					  XLOG_BC_TABLE_SIZE];
+	/*
+	 * If the hash bucket is empty then just insert a new record into
+	 * the bucket.
+	 */
+	if (*bucket == NULL) {
+		bcp = (xfs_buf_cancel_t *)kmem_alloc(sizeof(xfs_buf_cancel_t),
+						     KM_SLEEP);
+		bcp->bc_blkno = blkno;
+		bcp->bc_len = len;
+		bcp->bc_refcount = 1;
+		bcp->bc_next = NULL;
+		*bucket = bcp;
+		return;
+	}
+
+	/*
+	 * The hash bucket is not empty, so search for duplicates of our
+	 * record.  If we find one them just bump its refcount.  If not
+	 * then add us at the end of the list.
+	 */
+	prevp = NULL;
+	nextp = *bucket;
+	while (nextp != NULL) {
+		if (nextp->bc_blkno == blkno && nextp->bc_len == len) {
+			nextp->bc_refcount++;
+			return;
+		}
+		prevp = nextp;
+		nextp = nextp->bc_next;
+	}
+	ASSERT(prevp != NULL);
+	bcp = (xfs_buf_cancel_t *)kmem_alloc(sizeof(xfs_buf_cancel_t),
+					     KM_SLEEP);
+	bcp->bc_blkno = blkno;
+	bcp->bc_len = len;
+	bcp->bc_refcount = 1;
+	bcp->bc_next = NULL;
+	prevp->bc_next = bcp;
+}
+
+/*
+ * Check to see whether the buffer being recovered has a corresponding
+ * entry in the buffer cancel record table.  If it does then return 1
+ * so that it will be cancelled, otherwise return 0.  If the buffer is
+ * actually a buffer cancel item (XFS_BLI_CANCEL is set), then decrement
+ * the refcount on the entry in the table and remove it from the table
+ * if this is the last reference.
+ *
+ * We remove the cancel record from the table when we encounter its
+ * last occurrence in the log so that if the same buffer is re-used
+ * again after its last cancellation we actually replay the changes
+ * made at that point.
+ */
+STATIC int
+xlog_check_buffer_cancelled(
+	xlog_t			*log,
+	xfs_daddr_t		blkno,
+	uint			len,
+	ushort			flags)
+{
+	xfs_buf_cancel_t	*bcp;
+	xfs_buf_cancel_t	*prevp;
+	xfs_buf_cancel_t	**bucket;
+
+	if (log->l_buf_cancel_table == NULL) {
+		/*
+		 * There is nothing in the table built in pass one,
+		 * so this buffer must not be cancelled.
+		 */
+		ASSERT(!(flags & XFS_BLI_CANCEL));
+		return 0;
+	}
+
+	bucket = &log->l_buf_cancel_table[(__uint64_t)blkno %
+					  XLOG_BC_TABLE_SIZE];
+	bcp = *bucket;
+	if (bcp == NULL) {
+		/*
+		 * There is no corresponding entry in the table built
+		 * in pass one, so this buffer has not been cancelled.
+		 */
+		ASSERT(!(flags & XFS_BLI_CANCEL));
+		return 0;
+	}
+
+	/*
+	 * Search for an entry in the buffer cancel table that
+	 * matches our buffer.
+	 */
+	prevp = NULL;
+	while (bcp != NULL) {
+		if (bcp->bc_blkno == blkno && bcp->bc_len == len) {
+			/*
+			 * We've go a match, so return 1 so that the
+			 * recovery of this buffer is cancelled.
+			 * If this buffer is actually a buffer cancel
+			 * log item, then decrement the refcount on the
+			 * one in the table and remove it if this is the
+			 * last reference.
+			 */
+			if (flags & XFS_BLI_CANCEL) {
+				bcp->bc_refcount--;
+				if (bcp->bc_refcount == 0) {
+					if (prevp == NULL) {
+						*bucket = bcp->bc_next;
+					} else {
+						prevp->bc_next = bcp->bc_next;
+					}
+					kmem_free(bcp,
+						  sizeof(xfs_buf_cancel_t));
+				}
+			}
+			return 1;
+		}
+		prevp = bcp;
+		bcp = bcp->bc_next;
+	}
+	/*
+	 * We didn't find a corresponding entry in the table, so
+	 * return 0 so that the buffer is NOT cancelled.
+	 */
+	ASSERT(!(flags & XFS_BLI_CANCEL));
+	return 0;
+}
+
+STATIC int
+xlog_recover_do_buffer_pass2(
+	xlog_t			*log,
+	xfs_buf_log_format_t	*buf_f)
+{
+	xfs_buf_log_format_v1_t	*obuf_f;
+	xfs_daddr_t		blkno = 0;
+	ushort			flags = 0;
+	uint			len = 0;
+
+	switch (buf_f->blf_type) {
+	case XFS_LI_BUF:
+		blkno = buf_f->blf_blkno;
+		flags = buf_f->blf_flags;
+		len = buf_f->blf_len;
+		break;
+	case XFS_LI_6_1_BUF:
+	case XFS_LI_5_3_BUF:
+		obuf_f = (xfs_buf_log_format_v1_t*)buf_f;
+		blkno = (xfs_daddr_t) obuf_f->blf_blkno;
+		flags = obuf_f->blf_flags;
+		len = (xfs_daddr_t) obuf_f->blf_len;
+		break;
+	}
+
+	return xlog_check_buffer_cancelled(log, blkno, len, flags);
+}
+
+/*
+ * Perform recovery for a buffer full of inodes.  In these buffers,
+ * the only data which should be recovered is that which corresponds
+ * to the di_next_unlinked pointers in the on disk inode structures.
+ * The rest of the data for the inodes is always logged through the
+ * inodes themselves rather than the inode buffer and is recovered
+ * in xlog_recover_do_inode_trans().
+ *
+ * The only time when buffers full of inodes are fully recovered is
+ * when the buffer is full of newly allocated inodes.  In this case
+ * the buffer will not be marked as an inode buffer and so will be
+ * sent to xlog_recover_do_reg_buffer() below during recovery.
+ */
+STATIC int
+xlog_recover_do_inode_buffer(
+	xfs_mount_t		*mp,
+	xlog_recover_item_t	*item,
+	xfs_buf_t		*bp,
+	xfs_buf_log_format_t	*buf_f)
+{
+	int			i;
+	int			item_index;
+	int			bit;
+	int			nbits;
+	int			reg_buf_offset;
+	int			reg_buf_bytes;
+	int			next_unlinked_offset;
+	int			inodes_per_buf;
+	xfs_agino_t		*logged_nextp;
+	xfs_agino_t		*buffer_nextp;
+	xfs_buf_log_format_v1_t	*obuf_f;
+	unsigned int		*data_map = NULL;
+	unsigned int		map_size = 0;
+
+	switch (buf_f->blf_type) {
+	case XFS_LI_BUF:
+		data_map = buf_f->blf_data_map;
+		map_size = buf_f->blf_map_size;
+		break;
+	case XFS_LI_6_1_BUF:
+	case XFS_LI_5_3_BUF:
+		obuf_f = (xfs_buf_log_format_v1_t*)buf_f;
+		data_map = obuf_f->blf_data_map;
+		map_size = obuf_f->blf_map_size;
+		break;
+	}
+	/*
+	 * Set the variables corresponding to the current region to
+	 * 0 so that we'll initialize them on the first pass through
+	 * the loop.
+	 */
+	reg_buf_offset = 0;
+	reg_buf_bytes = 0;
+	bit = 0;
+	nbits = 0;
+	item_index = 0;
+	inodes_per_buf = XFS_BUF_COUNT(bp) >> mp->m_sb.sb_inodelog;
+	for (i = 0; i < inodes_per_buf; i++) {
+		next_unlinked_offset = (i * mp->m_sb.sb_inodesize) +
+			offsetof(xfs_dinode_t, di_next_unlinked);
+
+		while (next_unlinked_offset >=
+		       (reg_buf_offset + reg_buf_bytes)) {
+			/*
+			 * The next di_next_unlinked field is beyond
+			 * the current logged region.  Find the next
+			 * logged region that contains or is beyond
+			 * the current di_next_unlinked field.
+			 */
+			bit += nbits;
+			bit = xfs_next_bit(data_map, map_size, bit);
+
+			/*
+			 * If there are no more logged regions in the
+			 * buffer, then we're done.
+			 */
+			if (bit == -1) {
+				return 0;
+			}
+
+			nbits = xfs_contig_bits(data_map, map_size,
+							 bit);
+			ASSERT(nbits > 0);
+			reg_buf_offset = bit << XFS_BLI_SHIFT;
+			reg_buf_bytes = nbits << XFS_BLI_SHIFT;
+			item_index++;
+		}
+
+		/*
+		 * If the current logged region starts after the current
+		 * di_next_unlinked field, then move on to the next
+		 * di_next_unlinked field.
+		 */
+		if (next_unlinked_offset < reg_buf_offset) {
+			continue;
+		}
+
+		ASSERT(item->ri_buf[item_index].i_addr != NULL);
+		ASSERT((item->ri_buf[item_index].i_len % XFS_BLI_CHUNK) == 0);
+		ASSERT((reg_buf_offset + reg_buf_bytes) <= XFS_BUF_COUNT(bp));
+
+		/*
+		 * The current logged region contains a copy of the
+		 * current di_next_unlinked field.  Extract its value
+		 * and copy it to the buffer copy.
+		 */
+		logged_nextp = (xfs_agino_t *)
+			       ((char *)(item->ri_buf[item_index].i_addr) +
+				(next_unlinked_offset - reg_buf_offset));
+		if (unlikely(*logged_nextp == 0)) {
+			xfs_fs_cmn_err(CE_ALERT, mp,
+				"bad inode buffer log record (ptr = 0x%p, bp = 0x%p).  XFS trying to replay bad (0) inode di_next_unlinked field",
+				item, bp);
+			XFS_ERROR_REPORT("xlog_recover_do_inode_buf",
+					 XFS_ERRLEVEL_LOW, mp);
+			return XFS_ERROR(EFSCORRUPTED);
+		}
+
+		buffer_nextp = (xfs_agino_t *)xfs_buf_offset(bp,
+					      next_unlinked_offset);
+		INT_SET(*buffer_nextp, ARCH_CONVERT, *logged_nextp);
+	}
+
+	return 0;
+}
+
+/*
+ * Perform a 'normal' buffer recovery.  Each logged region of the
+ * buffer should be copied over the corresponding region in the
+ * given buffer.  The bitmap in the buf log format structure indicates
+ * where to place the logged data.
+ */
+/*ARGSUSED*/
+STATIC void
+xlog_recover_do_reg_buffer(
+	xfs_mount_t		*mp,
+	xlog_recover_item_t	*item,
+	xfs_buf_t		*bp,
+	xfs_buf_log_format_t	*buf_f)
+{
+	int			i;
+	int			bit;
+	int			nbits;
+	xfs_buf_log_format_v1_t	*obuf_f;
+	unsigned int		*data_map = NULL;
+	unsigned int		map_size = 0;
+	int                     error;
+
+	switch (buf_f->blf_type) {
+	case XFS_LI_BUF:
+		data_map = buf_f->blf_data_map;
+		map_size = buf_f->blf_map_size;
+		break;
+	case XFS_LI_6_1_BUF:
+	case XFS_LI_5_3_BUF:
+		obuf_f = (xfs_buf_log_format_v1_t*)buf_f;
+		data_map = obuf_f->blf_data_map;
+		map_size = obuf_f->blf_map_size;
+		break;
+	}
+	bit = 0;
+	i = 1;  /* 0 is the buf format structure */
+	while (1) {
+		bit = xfs_next_bit(data_map, map_size, bit);
+		if (bit == -1)
+			break;
+		nbits = xfs_contig_bits(data_map, map_size, bit);
+		ASSERT(nbits > 0);
+		ASSERT(item->ri_buf[i].i_addr != 0);
+		ASSERT(item->ri_buf[i].i_len % XFS_BLI_CHUNK == 0);
+		ASSERT(XFS_BUF_COUNT(bp) >=
+		       ((uint)bit << XFS_BLI_SHIFT)+(nbits<<XFS_BLI_SHIFT));
+
+		/*
+		 * Do a sanity check if this is a dquot buffer. Just checking
+		 * the first dquot in the buffer should do. XXXThis is
+		 * probably a good thing to do for other buf types also.
+		 */
+		error = 0;
+		if (buf_f->blf_flags & (XFS_BLI_UDQUOT_BUF|XFS_BLI_GDQUOT_BUF)) {
+			error = xfs_qm_dqcheck((xfs_disk_dquot_t *)
+					       item->ri_buf[i].i_addr,
+					       -1, 0, XFS_QMOPT_DOWARN,
+					       "dquot_buf_recover");
+		}
+		if (!error)
+			memcpy(xfs_buf_offset(bp,
+				(uint)bit << XFS_BLI_SHIFT),	/* dest */
+				item->ri_buf[i].i_addr,		/* source */
+				nbits<<XFS_BLI_SHIFT);		/* length */
+		i++;
+		bit += nbits;
+	}
+
+	/* Shouldn't be any more regions */
+	ASSERT(i == item->ri_total);
+}
+
+/*
+ * Do some primitive error checking on ondisk dquot data structures.
+ */
+int
+xfs_qm_dqcheck(
+	xfs_disk_dquot_t *ddq,
+	xfs_dqid_t	 id,
+	uint		 type,	  /* used only when IO_dorepair is true */
+	uint		 flags,
+	char		 *str)
+{
+	xfs_dqblk_t	 *d = (xfs_dqblk_t *)ddq;
+	int		errs = 0;
+
+	/*
+	 * We can encounter an uninitialized dquot buffer for 2 reasons:
+	 * 1. If we crash while deleting the quotainode(s), and those blks got
+	 *    used for user data. This is because we take the path of regular
+	 *    file deletion; however, the size field of quotainodes is never
+	 *    updated, so all the tricks that we play in itruncate_finish
+	 *    don't quite matter.
+	 *
+	 * 2. We don't play the quota buffers when there's a quotaoff logitem.
+	 *    But the allocation will be replayed so we'll end up with an
+	 *    uninitialized quota block.
+	 *
+	 * This is all fine; things are still consistent, and we haven't lost
+	 * any quota information. Just don't complain about bad dquot blks.
+	 */
+	if (INT_GET(ddq->d_magic, ARCH_CONVERT) != XFS_DQUOT_MAGIC) {
+		if (flags & XFS_QMOPT_DOWARN)
+			cmn_err(CE_ALERT,
+			"%s : XFS dquot ID 0x%x, magic 0x%x != 0x%x",
+			str, id,
+			INT_GET(ddq->d_magic, ARCH_CONVERT), XFS_DQUOT_MAGIC);
+		errs++;
+	}
+	if (INT_GET(ddq->d_version, ARCH_CONVERT) != XFS_DQUOT_VERSION) {
+		if (flags & XFS_QMOPT_DOWARN)
+			cmn_err(CE_ALERT,
+			"%s : XFS dquot ID 0x%x, version 0x%x != 0x%x",
+			str, id,
+			INT_GET(ddq->d_magic, ARCH_CONVERT), XFS_DQUOT_VERSION);
+		errs++;
+	}
+
+	if (INT_GET(ddq->d_flags, ARCH_CONVERT) != XFS_DQ_USER &&
+	    INT_GET(ddq->d_flags, ARCH_CONVERT) != XFS_DQ_GROUP) {
+		if (flags & XFS_QMOPT_DOWARN)
+			cmn_err(CE_ALERT,
+			"%s : XFS dquot ID 0x%x, unknown flags 0x%x",
+			str, id, INT_GET(ddq->d_flags, ARCH_CONVERT));
+		errs++;
+	}
+
+	if (id != -1 && id != INT_GET(ddq->d_id, ARCH_CONVERT)) {
+		if (flags & XFS_QMOPT_DOWARN)
+			cmn_err(CE_ALERT,
+			"%s : ondisk-dquot 0x%p, ID mismatch: "
+			"0x%x expected, found id 0x%x",
+			str, ddq, id, INT_GET(ddq->d_id, ARCH_CONVERT));
+		errs++;
+	}
+
+	if (! errs && !INT_ISZERO(ddq->d_id, ARCH_CONVERT)) {
+		if (INT_GET(ddq->d_blk_softlimit, ARCH_CONVERT) &&
+		    INT_GET(ddq->d_bcount, ARCH_CONVERT) >=
+				INT_GET(ddq->d_blk_softlimit, ARCH_CONVERT)) {
+			if (INT_ISZERO(ddq->d_btimer, ARCH_CONVERT)) {
+				if (flags & XFS_QMOPT_DOWARN)
+					cmn_err(CE_ALERT,
+					"%s : Dquot ID 0x%x (0x%p) "
+					"BLK TIMER NOT STARTED",
+					str, (int)
+					INT_GET(ddq->d_id, ARCH_CONVERT), ddq);
+				errs++;
+			}
+		}
+		if (INT_GET(ddq->d_ino_softlimit, ARCH_CONVERT) &&
+		    INT_GET(ddq->d_icount, ARCH_CONVERT) >=
+				INT_GET(ddq->d_ino_softlimit, ARCH_CONVERT)) {
+			if (INT_ISZERO(ddq->d_itimer, ARCH_CONVERT)) {
+				if (flags & XFS_QMOPT_DOWARN)
+					cmn_err(CE_ALERT,
+					"%s : Dquot ID 0x%x (0x%p) "
+					"INODE TIMER NOT STARTED",
+					str, (int)
+					INT_GET(ddq->d_id, ARCH_CONVERT), ddq);
+				errs++;
+			}
+		}
+		if (INT_GET(ddq->d_rtb_softlimit, ARCH_CONVERT) &&
+		    INT_GET(ddq->d_rtbcount, ARCH_CONVERT) >=
+				INT_GET(ddq->d_rtb_softlimit, ARCH_CONVERT)) {
+			if (INT_ISZERO(ddq->d_rtbtimer, ARCH_CONVERT)) {
+				if (flags & XFS_QMOPT_DOWARN)
+					cmn_err(CE_ALERT,
+					"%s : Dquot ID 0x%x (0x%p) "
+					"RTBLK TIMER NOT STARTED",
+					str, (int)
+					INT_GET(ddq->d_id, ARCH_CONVERT), ddq);
+				errs++;
+			}
+		}
+	}
+
+	if (!errs || !(flags & XFS_QMOPT_DQREPAIR))
+		return errs;
+
+	if (flags & XFS_QMOPT_DOWARN)
+		cmn_err(CE_NOTE, "Re-initializing dquot ID 0x%x", id);
+
+	/*
+	 * Typically, a repair is only requested by quotacheck.
+	 */
+	ASSERT(id != -1);
+	ASSERT(flags & XFS_QMOPT_DQREPAIR);
+	memset(d, 0, sizeof(xfs_dqblk_t));
+	INT_SET(d->dd_diskdq.d_magic, ARCH_CONVERT, XFS_DQUOT_MAGIC);
+	INT_SET(d->dd_diskdq.d_version, ARCH_CONVERT, XFS_DQUOT_VERSION);
+	INT_SET(d->dd_diskdq.d_id, ARCH_CONVERT, id);
+	INT_SET(d->dd_diskdq.d_flags, ARCH_CONVERT, type);
+
+	return errs;
+}
+
+/*
+ * Perform a dquot buffer recovery.
+ * Simple algorithm: if we have found a QUOTAOFF logitem of the same type
+ * (ie. USR or GRP), then just toss this buffer away; don't recover it.
+ * Else, treat it as a regular buffer and do recovery.
+ */
+STATIC void
+xlog_recover_do_dquot_buffer(
+	xfs_mount_t		*mp,
+	xlog_t			*log,
+	xlog_recover_item_t	*item,
+	xfs_buf_t		*bp,
+	xfs_buf_log_format_t	*buf_f)
+{
+	uint			type;
+
+	/*
+	 * Filesystems are required to send in quota flags at mount time.
+	 */
+	if (mp->m_qflags == 0) {
+		return;
+	}
+
+	type = 0;
+	if (buf_f->blf_flags & XFS_BLI_UDQUOT_BUF)
+		type |= XFS_DQ_USER;
+	if (buf_f->blf_flags & XFS_BLI_GDQUOT_BUF)
+		type |= XFS_DQ_GROUP;
+	/*
+	 * This type of quotas was turned off, so ignore this buffer
+	 */
+	if (log->l_quotaoffs_flag & type)
+		return;
+
+	xlog_recover_do_reg_buffer(mp, item, bp, buf_f);
+}
+
+/*
+ * This routine replays a modification made to a buffer at runtime.
+ * There are actually two types of buffer, regular and inode, which
+ * are handled differently.  Inode buffers are handled differently
+ * in that we only recover a specific set of data from them, namely
+ * the inode di_next_unlinked fields.  This is because all other inode
+ * data is actually logged via inode records and any data we replay
+ * here which overlaps that may be stale.
+ *
+ * When meta-data buffers are freed at run time we log a buffer item
+ * with the XFS_BLI_CANCEL bit set to indicate that previous copies
+ * of the buffer in the log should not be replayed at recovery time.
+ * This is so that if the blocks covered by the buffer are reused for
+ * file data before we crash we don't end up replaying old, freed
+ * meta-data into a user's file.
+ *
+ * To handle the cancellation of buffer log items, we make two passes
+ * over the log during recovery.  During the first we build a table of
+ * those buffers which have been cancelled, and during the second we
+ * only replay those buffers which do not have corresponding cancel
+ * records in the table.  See xlog_recover_do_buffer_pass[1,2] above
+ * for more details on the implementation of the table of cancel records.
+ */
+STATIC int
+xlog_recover_do_buffer_trans(
+	xlog_t			*log,
+	xlog_recover_item_t	*item,
+	int			pass)
+{
+	xfs_buf_log_format_t	*buf_f;
+	xfs_buf_log_format_v1_t	*obuf_f;
+	xfs_mount_t		*mp;
+	xfs_buf_t		*bp;
+	int			error;
+	int			cancel;
+	xfs_daddr_t		blkno;
+	int			len;
+	ushort			flags;
+
+	buf_f = (xfs_buf_log_format_t *)item->ri_buf[0].i_addr;
+
+	if (pass == XLOG_RECOVER_PASS1) {
+		/*
+		 * In this pass we're only looking for buf items
+		 * with the XFS_BLI_CANCEL bit set.
+		 */
+		xlog_recover_do_buffer_pass1(log, buf_f);
+		return 0;
+	} else {
+		/*
+		 * In this pass we want to recover all the buffers
+		 * which have not been cancelled and are not
+		 * cancellation buffers themselves.  The routine
+		 * we call here will tell us whether or not to
+		 * continue with the replay of this buffer.
+		 */
+		cancel = xlog_recover_do_buffer_pass2(log, buf_f);
+		if (cancel) {
+			return 0;
+		}
+	}
+	switch (buf_f->blf_type) {
+	case XFS_LI_BUF:
+		blkno = buf_f->blf_blkno;
+		len = buf_f->blf_len;
+		flags = buf_f->blf_flags;
+		break;
+	case XFS_LI_6_1_BUF:
+	case XFS_LI_5_3_BUF:
+		obuf_f = (xfs_buf_log_format_v1_t*)buf_f;
+		blkno = obuf_f->blf_blkno;
+		len = obuf_f->blf_len;
+		flags = obuf_f->blf_flags;
+		break;
+	default:
+		xfs_fs_cmn_err(CE_ALERT, log->l_mp,
+			"xfs_log_recover: unknown buffer type 0x%x, dev %s",
+			buf_f->blf_type, XFS_BUFTARG_NAME(log->l_targ));
+		XFS_ERROR_REPORT("xlog_recover_do_buffer_trans",
+				 XFS_ERRLEVEL_LOW, log->l_mp);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+
+	mp = log->l_mp;
+	if (flags & XFS_BLI_INODE_BUF) {
+		bp = xfs_buf_read_flags(mp->m_ddev_targp, blkno, len,
+								XFS_BUF_LOCK);
+	} else {
+		bp = xfs_buf_read(mp->m_ddev_targp, blkno, len, 0);
+	}
+	if (XFS_BUF_ISERROR(bp)) {
+		xfs_ioerror_alert("xlog_recover_do..(read#1)", log->l_mp,
+				  bp, blkno);
+		error = XFS_BUF_GETERROR(bp);
+		xfs_buf_relse(bp);
+		return error;
+	}
+
+	error = 0;
+	if (flags & XFS_BLI_INODE_BUF) {
+		error = xlog_recover_do_inode_buffer(mp, item, bp, buf_f);
+	} else if (flags & (XFS_BLI_UDQUOT_BUF | XFS_BLI_GDQUOT_BUF)) {
+		xlog_recover_do_dquot_buffer(mp, log, item, bp, buf_f);
+	} else {
+		xlog_recover_do_reg_buffer(mp, item, bp, buf_f);
+	}
+	if (error)
+		return XFS_ERROR(error);
+
+	/*
+	 * Perform delayed write on the buffer.  Asynchronous writes will be
+	 * slower when taking into account all the buffers to be flushed.
+	 *
+	 * Also make sure that only inode buffers with good sizes stay in
+	 * the buffer cache.  The kernel moves inodes in buffers of 1 block
+	 * or XFS_INODE_CLUSTER_SIZE bytes, whichever is bigger.  The inode
+	 * buffers in the log can be a different size if the log was generated
+	 * by an older kernel using unclustered inode buffers or a newer kernel
+	 * running with a different inode cluster size.  Regardless, if the
+	 * the inode buffer size isn't MAX(blocksize, XFS_INODE_CLUSTER_SIZE)
+	 * for *our* value of XFS_INODE_CLUSTER_SIZE, then we need to keep
+	 * the buffer out of the buffer cache so that the buffer won't
+	 * overlap with future reads of those inodes.
+	 */
+	if (XFS_DINODE_MAGIC ==
+	    INT_GET(*((__uint16_t *)(xfs_buf_offset(bp, 0))), ARCH_CONVERT) &&
+	    (XFS_BUF_COUNT(bp) != MAX(log->l_mp->m_sb.sb_blocksize,
+			(__uint32_t)XFS_INODE_CLUSTER_SIZE(log->l_mp)))) {
+		XFS_BUF_STALE(bp);
+		error = xfs_bwrite(mp, bp);
+	} else {
+		ASSERT(XFS_BUF_FSPRIVATE(bp, void *) == NULL ||
+		       XFS_BUF_FSPRIVATE(bp, xfs_mount_t *) == mp);
+		XFS_BUF_SET_FSPRIVATE(bp, mp);
+		XFS_BUF_SET_IODONE_FUNC(bp, xlog_recover_iodone);
+		xfs_bdwrite(mp, bp);
+	}
+
+	return (error);
+}
+
+STATIC int
+xlog_recover_do_inode_trans(
+	xlog_t			*log,
+	xlog_recover_item_t	*item,
+	int			pass)
+{
+	xfs_inode_log_format_t	*in_f;
+	xfs_mount_t		*mp;
+	xfs_buf_t		*bp;
+	xfs_imap_t		imap;
+	xfs_dinode_t		*dip;
+	xfs_ino_t		ino;
+	int			len;
+	xfs_caddr_t		src;
+	xfs_caddr_t		dest;
+	int			error;
+	int			attr_index;
+	uint			fields;
+	xfs_dinode_core_t	*dicp;
+
+	if (pass == XLOG_RECOVER_PASS1) {
+		return 0;
+	}
+
+	in_f = (xfs_inode_log_format_t *)item->ri_buf[0].i_addr;
+	ino = in_f->ilf_ino;
+	mp = log->l_mp;
+	if (ITEM_TYPE(item) == XFS_LI_INODE) {
+		imap.im_blkno = (xfs_daddr_t)in_f->ilf_blkno;
+		imap.im_len = in_f->ilf_len;
+		imap.im_boffset = in_f->ilf_boffset;
+	} else {
+		/*
+		 * It's an old inode format record.  We don't know where
+		 * its cluster is located on disk, and we can't allow
+		 * xfs_imap() to figure it out because the inode btrees
+		 * are not ready to be used.  Therefore do not pass the
+		 * XFS_IMAP_LOOKUP flag to xfs_imap().  This will give
+		 * us only the single block in which the inode lives
+		 * rather than its cluster, so we must make sure to
+		 * invalidate the buffer when we write it out below.
+		 */
+		imap.im_blkno = 0;
+		xfs_imap(log->l_mp, NULL, ino, &imap, 0);
+	}
+
+	/*
+	 * Inode buffers can be freed, look out for it,
+	 * and do not replay the inode.
+	 */
+	if (xlog_check_buffer_cancelled(log, imap.im_blkno, imap.im_len, 0))
+		return 0;
+
+	bp = xfs_buf_read_flags(mp->m_ddev_targp, imap.im_blkno, imap.im_len,
+								XFS_BUF_LOCK);
+	if (XFS_BUF_ISERROR(bp)) {
+		xfs_ioerror_alert("xlog_recover_do..(read#2)", mp,
+				  bp, imap.im_blkno);
+		error = XFS_BUF_GETERROR(bp);
+		xfs_buf_relse(bp);
+		return error;
+	}
+	error = 0;
+	ASSERT(in_f->ilf_fields & XFS_ILOG_CORE);
+	dip = (xfs_dinode_t *)xfs_buf_offset(bp, imap.im_boffset);
+
+	/*
+	 * Make sure the place we're flushing out to really looks
+	 * like an inode!
+	 */
+	if (unlikely(INT_GET(dip->di_core.di_magic, ARCH_CONVERT) != XFS_DINODE_MAGIC)) {
+		xfs_buf_relse(bp);
+		xfs_fs_cmn_err(CE_ALERT, mp,
+			"xfs_inode_recover: Bad inode magic number, dino ptr = 0x%p, dino bp = 0x%p, ino = %Ld",
+			dip, bp, ino);
+		XFS_ERROR_REPORT("xlog_recover_do_inode_trans(1)",
+				 XFS_ERRLEVEL_LOW, mp);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+	dicp = (xfs_dinode_core_t*)(item->ri_buf[1].i_addr);
+	if (unlikely(dicp->di_magic != XFS_DINODE_MAGIC)) {
+		xfs_buf_relse(bp);
+		xfs_fs_cmn_err(CE_ALERT, mp,
+			"xfs_inode_recover: Bad inode log record, rec ptr 0x%p, ino %Ld",
+			item, ino);
+		XFS_ERROR_REPORT("xlog_recover_do_inode_trans(2)",
+				 XFS_ERRLEVEL_LOW, mp);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+
+	/* Skip replay when the on disk inode is newer than the log one */
+	if (dicp->di_flushiter <
+	    INT_GET(dip->di_core.di_flushiter, ARCH_CONVERT)) {
+		/*
+		 * Deal with the wrap case, DI_MAX_FLUSH is less
+		 * than smaller numbers
+		 */
+		if ((INT_GET(dip->di_core.di_flushiter, ARCH_CONVERT)
+							== DI_MAX_FLUSH) &&
+		    (dicp->di_flushiter < (DI_MAX_FLUSH>>1))) {
+			/* do nothing */
+		} else {
+			xfs_buf_relse(bp);
+			return 0;
+		}
+	}
+	/* Take the opportunity to reset the flush iteration count */
+	dicp->di_flushiter = 0;
+
+	if (unlikely((dicp->di_mode & S_IFMT) == S_IFREG)) {
+		if ((dicp->di_format != XFS_DINODE_FMT_EXTENTS) &&
+		    (dicp->di_format != XFS_DINODE_FMT_BTREE)) {
+			XFS_CORRUPTION_ERROR("xlog_recover_do_inode_trans(3)",
+					 XFS_ERRLEVEL_LOW, mp, dicp);
+			xfs_buf_relse(bp);
+			xfs_fs_cmn_err(CE_ALERT, mp,
+				"xfs_inode_recover: Bad regular inode log record, rec ptr 0x%p, ino ptr = 0x%p, ino bp = 0x%p, ino %Ld",
+				item, dip, bp, ino);
+			return XFS_ERROR(EFSCORRUPTED);
+		}
+	} else if (unlikely((dicp->di_mode & S_IFMT) == S_IFDIR)) {
+		if ((dicp->di_format != XFS_DINODE_FMT_EXTENTS) &&
+		    (dicp->di_format != XFS_DINODE_FMT_BTREE) &&
+		    (dicp->di_format != XFS_DINODE_FMT_LOCAL)) {
+			XFS_CORRUPTION_ERROR("xlog_recover_do_inode_trans(4)",
+					     XFS_ERRLEVEL_LOW, mp, dicp);
+			xfs_buf_relse(bp);
+			xfs_fs_cmn_err(CE_ALERT, mp,
+				"xfs_inode_recover: Bad dir inode log record, rec ptr 0x%p, ino ptr = 0x%p, ino bp = 0x%p, ino %Ld",
+				item, dip, bp, ino);
+			return XFS_ERROR(EFSCORRUPTED);
+		}
+	}
+	if (unlikely(dicp->di_nextents + dicp->di_anextents > dicp->di_nblocks)){
+		XFS_CORRUPTION_ERROR("xlog_recover_do_inode_trans(5)",
+				     XFS_ERRLEVEL_LOW, mp, dicp);
+		xfs_buf_relse(bp);
+		xfs_fs_cmn_err(CE_ALERT, mp,
+			"xfs_inode_recover: Bad inode log record, rec ptr 0x%p, dino ptr 0x%p, dino bp 0x%p, ino %Ld, total extents = %d, nblocks = %Ld",
+			item, dip, bp, ino,
+			dicp->di_nextents + dicp->di_anextents,
+			dicp->di_nblocks);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+	if (unlikely(dicp->di_forkoff > mp->m_sb.sb_inodesize)) {
+		XFS_CORRUPTION_ERROR("xlog_recover_do_inode_trans(6)",
+				     XFS_ERRLEVEL_LOW, mp, dicp);
+		xfs_buf_relse(bp);
+		xfs_fs_cmn_err(CE_ALERT, mp,
+			"xfs_inode_recover: Bad inode log rec ptr 0x%p, dino ptr 0x%p, dino bp 0x%p, ino %Ld, forkoff 0x%x",
+			item, dip, bp, ino, dicp->di_forkoff);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+	if (unlikely(item->ri_buf[1].i_len > sizeof(xfs_dinode_core_t))) {
+		XFS_CORRUPTION_ERROR("xlog_recover_do_inode_trans(7)",
+				     XFS_ERRLEVEL_LOW, mp, dicp);
+		xfs_buf_relse(bp);
+		xfs_fs_cmn_err(CE_ALERT, mp,
+			"xfs_inode_recover: Bad inode log record length %d, rec ptr 0x%p",
+			item->ri_buf[1].i_len, item);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+
+	/* The core is in in-core format */
+	xfs_xlate_dinode_core((xfs_caddr_t)&dip->di_core,
+			      (xfs_dinode_core_t*)item->ri_buf[1].i_addr,
+			      -1, ARCH_CONVERT);
+	/* the rest is in on-disk format */
+	if (item->ri_buf[1].i_len > sizeof(xfs_dinode_core_t)) {
+		memcpy((xfs_caddr_t) dip + sizeof(xfs_dinode_core_t),
+			item->ri_buf[1].i_addr + sizeof(xfs_dinode_core_t),
+			item->ri_buf[1].i_len  - sizeof(xfs_dinode_core_t));
+	}
+
+	fields = in_f->ilf_fields;
+	switch (fields & (XFS_ILOG_DEV | XFS_ILOG_UUID)) {
+	case XFS_ILOG_DEV:
+		INT_SET(dip->di_u.di_dev, ARCH_CONVERT, in_f->ilf_u.ilfu_rdev);
+
+		break;
+	case XFS_ILOG_UUID:
+		dip->di_u.di_muuid = in_f->ilf_u.ilfu_uuid;
+		break;
+	}
+
+	if (in_f->ilf_size == 2)
+		goto write_inode_buffer;
+	len = item->ri_buf[2].i_len;
+	src = item->ri_buf[2].i_addr;
+	ASSERT(in_f->ilf_size <= 4);
+	ASSERT((in_f->ilf_size == 3) || (fields & XFS_ILOG_AFORK));
+	ASSERT(!(fields & XFS_ILOG_DFORK) ||
+	       (len == in_f->ilf_dsize));
+
+	switch (fields & XFS_ILOG_DFORK) {
+	case XFS_ILOG_DDATA:
+	case XFS_ILOG_DEXT:
+		memcpy(&dip->di_u, src, len);
+		break;
+
+	case XFS_ILOG_DBROOT:
+		xfs_bmbt_to_bmdr((xfs_bmbt_block_t *)src, len,
+				 &(dip->di_u.di_bmbt),
+				 XFS_DFORK_DSIZE(dip, mp));
+		break;
+
+	default:
+		/*
+		 * There are no data fork flags set.
+		 */
+		ASSERT((fields & XFS_ILOG_DFORK) == 0);
+		break;
+	}
+
+	/*
+	 * If we logged any attribute data, recover it.  There may or
+	 * may not have been any other non-core data logged in this
+	 * transaction.
+	 */
+	if (in_f->ilf_fields & XFS_ILOG_AFORK) {
+		if (in_f->ilf_fields & XFS_ILOG_DFORK) {
+			attr_index = 3;
+		} else {
+			attr_index = 2;
+		}
+		len = item->ri_buf[attr_index].i_len;
+		src = item->ri_buf[attr_index].i_addr;
+		ASSERT(len == in_f->ilf_asize);
+
+		switch (in_f->ilf_fields & XFS_ILOG_AFORK) {
+		case XFS_ILOG_ADATA:
+		case XFS_ILOG_AEXT:
+			dest = XFS_DFORK_APTR(dip);
+			ASSERT(len <= XFS_DFORK_ASIZE(dip, mp));
+			memcpy(dest, src, len);
+			break;
+
+		case XFS_ILOG_ABROOT:
+			dest = XFS_DFORK_APTR(dip);
+			xfs_bmbt_to_bmdr((xfs_bmbt_block_t *)src, len,
+					 (xfs_bmdr_block_t*)dest,
+					 XFS_DFORK_ASIZE(dip, mp));
+			break;
+
+		default:
+			xlog_warn("XFS: xlog_recover_do_inode_trans: Invalid flag");
+			ASSERT(0);
+			xfs_buf_relse(bp);
+			return XFS_ERROR(EIO);
+		}
+	}
+
+write_inode_buffer:
+	if (ITEM_TYPE(item) == XFS_LI_INODE) {
+		ASSERT(XFS_BUF_FSPRIVATE(bp, void *) == NULL ||
+		       XFS_BUF_FSPRIVATE(bp, xfs_mount_t *) == mp);
+		XFS_BUF_SET_FSPRIVATE(bp, mp);
+		XFS_BUF_SET_IODONE_FUNC(bp, xlog_recover_iodone);
+		xfs_bdwrite(mp, bp);
+	} else {
+		XFS_BUF_STALE(bp);
+		error = xfs_bwrite(mp, bp);
+	}
+
+	return (error);
+}
+
+/*
+ * Recover QUOTAOFF records. We simply make a note of it in the xlog_t
+ * structure, so that we know not to do any dquot item or dquot buffer recovery,
+ * of that type.
+ */
+STATIC int
+xlog_recover_do_quotaoff_trans(
+	xlog_t			*log,
+	xlog_recover_item_t	*item,
+	int			pass)
+{
+	xfs_qoff_logformat_t	*qoff_f;
+
+	if (pass == XLOG_RECOVER_PASS2) {
+		return (0);
+	}
+
+	qoff_f = (xfs_qoff_logformat_t *)item->ri_buf[0].i_addr;
+	ASSERT(qoff_f);
+
+	/*
+	 * The logitem format's flag tells us if this was user quotaoff,
+	 * group quotaoff or both.
+	 */
+	if (qoff_f->qf_flags & XFS_UQUOTA_ACCT)
+		log->l_quotaoffs_flag |= XFS_DQ_USER;
+	if (qoff_f->qf_flags & XFS_GQUOTA_ACCT)
+		log->l_quotaoffs_flag |= XFS_DQ_GROUP;
+
+	return (0);
+}
+
+/*
+ * Recover a dquot record
+ */
+STATIC int
+xlog_recover_do_dquot_trans(
+	xlog_t			*log,
+	xlog_recover_item_t	*item,
+	int			pass)
+{
+	xfs_mount_t		*mp;
+	xfs_buf_t		*bp;
+	struct xfs_disk_dquot	*ddq, *recddq;
+	int			error;
+	xfs_dq_logformat_t	*dq_f;
+	uint			type;
+
+	if (pass == XLOG_RECOVER_PASS1) {
+		return 0;
+	}
+	mp = log->l_mp;
+
+	/*
+	 * Filesystems are required to send in quota flags at mount time.
+	 */
+	if (mp->m_qflags == 0)
+		return (0);
+
+	recddq = (xfs_disk_dquot_t *)item->ri_buf[1].i_addr;
+	ASSERT(recddq);
+	/*
+	 * This type of quotas was turned off, so ignore this record.
+	 */
+	type = INT_GET(recddq->d_flags, ARCH_CONVERT) &
+			(XFS_DQ_USER | XFS_DQ_GROUP);
+	ASSERT(type);
+	if (log->l_quotaoffs_flag & type)
+		return (0);
+
+	/*
+	 * At this point we know that quota was _not_ turned off.
+	 * Since the mount flags are not indicating to us otherwise, this
+	 * must mean that quota is on, and the dquot needs to be replayed.
+	 * Remember that we may not have fully recovered the superblock yet,
+	 * so we can't do the usual trick of looking at the SB quota bits.
+	 *
+	 * The other possibility, of course, is that the quota subsystem was
+	 * removed since the last mount - ENOSYS.
+	 */
+	dq_f = (xfs_dq_logformat_t *)item->ri_buf[0].i_addr;
+	ASSERT(dq_f);
+	if ((error = xfs_qm_dqcheck(recddq,
+			   dq_f->qlf_id,
+			   0, XFS_QMOPT_DOWARN,
+			   "xlog_recover_do_dquot_trans (log copy)"))) {
+		return XFS_ERROR(EIO);
+	}
+	ASSERT(dq_f->qlf_len == 1);
+
+	error = xfs_read_buf(mp, mp->m_ddev_targp,
+			     dq_f->qlf_blkno,
+			     XFS_FSB_TO_BB(mp, dq_f->qlf_len),
+			     0, &bp);
+	if (error) {
+		xfs_ioerror_alert("xlog_recover_do..(read#3)", mp,
+				  bp, dq_f->qlf_blkno);
+		return error;
+	}
+	ASSERT(bp);
+	ddq = (xfs_disk_dquot_t *)xfs_buf_offset(bp, dq_f->qlf_boffset);
+
+	/*
+	 * At least the magic num portion should be on disk because this
+	 * was among a chunk of dquots created earlier, and we did some
+	 * minimal initialization then.
+	 */
+	if (xfs_qm_dqcheck(ddq, dq_f->qlf_id, 0, XFS_QMOPT_DOWARN,
+			   "xlog_recover_do_dquot_trans")) {
+		xfs_buf_relse(bp);
+		return XFS_ERROR(EIO);
+	}
+
+	memcpy(ddq, recddq, item->ri_buf[1].i_len);
+
+	ASSERT(dq_f->qlf_size == 2);
+	ASSERT(XFS_BUF_FSPRIVATE(bp, void *) == NULL ||
+	       XFS_BUF_FSPRIVATE(bp, xfs_mount_t *) == mp);
+	XFS_BUF_SET_FSPRIVATE(bp, mp);
+	XFS_BUF_SET_IODONE_FUNC(bp, xlog_recover_iodone);
+	xfs_bdwrite(mp, bp);
+
+	return (0);
+}
+
+/*
+ * This routine is called to create an in-core extent free intent
+ * item from the efi format structure which was logged on disk.
+ * It allocates an in-core efi, copies the extents from the format
+ * structure into it, and adds the efi to the AIL with the given
+ * LSN.
+ */
+STATIC void
+xlog_recover_do_efi_trans(
+	xlog_t			*log,
+	xlog_recover_item_t	*item,
+	xfs_lsn_t		lsn,
+	int			pass)
+{
+	xfs_mount_t		*mp;
+	xfs_efi_log_item_t	*efip;
+	xfs_efi_log_format_t	*efi_formatp;
+	SPLDECL(s);
+
+	if (pass == XLOG_RECOVER_PASS1) {
+		return;
+	}
+
+	efi_formatp = (xfs_efi_log_format_t *)item->ri_buf[0].i_addr;
+	ASSERT(item->ri_buf[0].i_len ==
+	       (sizeof(xfs_efi_log_format_t) +
+		((efi_formatp->efi_nextents - 1) * sizeof(xfs_extent_t))));
+
+	mp = log->l_mp;
+	efip = xfs_efi_init(mp, efi_formatp->efi_nextents);
+	memcpy((char *)&(efip->efi_format), (char *)efi_formatp,
+	      sizeof(xfs_efi_log_format_t) +
+	      ((efi_formatp->efi_nextents - 1) * sizeof(xfs_extent_t)));
+	efip->efi_next_extent = efi_formatp->efi_nextents;
+	efip->efi_flags |= XFS_EFI_COMMITTED;
+
+	AIL_LOCK(mp,s);
+	/*
+	 * xfs_trans_update_ail() drops the AIL lock.
+	 */
+	xfs_trans_update_ail(mp, (xfs_log_item_t *)efip, lsn, s);
+}
+
+
+/*
+ * This routine is called when an efd format structure is found in
+ * a committed transaction in the log.  It's purpose is to cancel
+ * the corresponding efi if it was still in the log.  To do this
+ * it searches the AIL for the efi with an id equal to that in the
+ * efd format structure.  If we find it, we remove the efi from the
+ * AIL and free it.
+ */
+STATIC void
+xlog_recover_do_efd_trans(
+	xlog_t			*log,
+	xlog_recover_item_t	*item,
+	int			pass)
+{
+	xfs_mount_t		*mp;
+	xfs_efd_log_format_t	*efd_formatp;
+	xfs_efi_log_item_t	*efip = NULL;
+	xfs_log_item_t		*lip;
+	int			gen;
+	int			nexts;
+	__uint64_t		efi_id;
+	SPLDECL(s);
+
+	if (pass == XLOG_RECOVER_PASS1) {
+		return;
+	}
+
+	efd_formatp = (xfs_efd_log_format_t *)item->ri_buf[0].i_addr;
+	ASSERT(item->ri_buf[0].i_len ==
+	       (sizeof(xfs_efd_log_format_t) +
+		((efd_formatp->efd_nextents - 1) * sizeof(xfs_extent_t))));
+	efi_id = efd_formatp->efd_efi_id;
+
+	/*
+	 * Search for the efi with the id in the efd format structure
+	 * in the AIL.
+	 */
+	mp = log->l_mp;
+	AIL_LOCK(mp,s);
+	lip = xfs_trans_first_ail(mp, &gen);
+	while (lip != NULL) {
+		if (lip->li_type == XFS_LI_EFI) {
+			efip = (xfs_efi_log_item_t *)lip;
+			if (efip->efi_format.efi_id == efi_id) {
+				/*
+				 * xfs_trans_delete_ail() drops the
+				 * AIL lock.
+				 */
+				xfs_trans_delete_ail(mp, lip, s);
+				break;
+			}
+		}
+		lip = xfs_trans_next_ail(mp, lip, &gen, NULL);
+	}
+	if (lip == NULL) {
+		AIL_UNLOCK(mp, s);
+	}
+
+	/*
+	 * If we found it, then free it up.  If it wasn't there, it
+	 * must have been overwritten in the log.  Oh well.
+	 */
+	if (lip != NULL) {
+		nexts = efip->efi_format.efi_nextents;
+		if (nexts > XFS_EFI_MAX_FAST_EXTENTS) {
+			kmem_free(lip, sizeof(xfs_efi_log_item_t) +
+				  ((nexts - 1) * sizeof(xfs_extent_t)));
+		} else {
+			kmem_zone_free(xfs_efi_zone, efip);
+		}
+	}
+}
+
+/*
+ * Perform the transaction
+ *
+ * If the transaction modifies a buffer or inode, do it now.  Otherwise,
+ * EFIs and EFDs get queued up by adding entries into the AIL for them.
+ */
+STATIC int
+xlog_recover_do_trans(
+	xlog_t			*log,
+	xlog_recover_t		*trans,
+	int			pass)
+{
+	int			error = 0;
+	xlog_recover_item_t	*item, *first_item;
+
+	if ((error = xlog_recover_reorder_trans(log, trans)))
+		return error;
+	first_item = item = trans->r_itemq;
+	do {
+		/*
+		 * we don't need to worry about the block number being
+		 * truncated in > 1 TB buffers because in user-land,
+		 * we're now n32 or 64-bit so xfs_daddr_t is 64-bits so
+		 * the blkno's will get through the user-mode buffer
+		 * cache properly.  The only bad case is o32 kernels
+		 * where xfs_daddr_t is 32-bits but mount will warn us
+		 * off a > 1 TB filesystem before we get here.
+		 */
+		if ((ITEM_TYPE(item) == XFS_LI_BUF) ||
+		    (ITEM_TYPE(item) == XFS_LI_6_1_BUF) ||
+		    (ITEM_TYPE(item) == XFS_LI_5_3_BUF)) {
+			if  ((error = xlog_recover_do_buffer_trans(log, item,
+								 pass)))
+				break;
+		} else if ((ITEM_TYPE(item) == XFS_LI_INODE) ||
+			   (ITEM_TYPE(item) == XFS_LI_6_1_INODE) ||
+			   (ITEM_TYPE(item) == XFS_LI_5_3_INODE)) {
+			if ((error = xlog_recover_do_inode_trans(log, item,
+								pass)))
+				break;
+		} else if (ITEM_TYPE(item) == XFS_LI_EFI) {
+			xlog_recover_do_efi_trans(log, item, trans->r_lsn,
+						  pass);
+		} else if (ITEM_TYPE(item) == XFS_LI_EFD) {
+			xlog_recover_do_efd_trans(log, item, pass);
+		} else if (ITEM_TYPE(item) == XFS_LI_DQUOT) {
+			if ((error = xlog_recover_do_dquot_trans(log, item,
+								   pass)))
+					break;
+		} else if ((ITEM_TYPE(item) == XFS_LI_QUOTAOFF)) {
+			if ((error = xlog_recover_do_quotaoff_trans(log, item,
+								   pass)))
+					break;
+		} else {
+			xlog_warn("XFS: xlog_recover_do_trans");
+			ASSERT(0);
+			error = XFS_ERROR(EIO);
+			break;
+		}
+		item = item->ri_next;
+	} while (first_item != item);
+
+	return error;
+}
+
+/*
+ * Free up any resources allocated by the transaction
+ *
+ * Remember that EFIs, EFDs, and IUNLINKs are handled later.
+ */
+STATIC void
+xlog_recover_free_trans(
+	xlog_recover_t		*trans)
+{
+	xlog_recover_item_t	*first_item, *item, *free_item;
+	int			i;
+
+	item = first_item = trans->r_itemq;
+	do {
+		free_item = item;
+		item = item->ri_next;
+		 /* Free the regions in the item. */
+		for (i = 0; i < free_item->ri_cnt; i++) {
+			kmem_free(free_item->ri_buf[i].i_addr,
+				  free_item->ri_buf[i].i_len);
+		}
+		/* Free the item itself */
+		kmem_free(free_item->ri_buf,
+			  (free_item->ri_total * sizeof(xfs_log_iovec_t)));
+		kmem_free(free_item, sizeof(xlog_recover_item_t));
+	} while (first_item != item);
+	/* Free the transaction recover structure */
+	kmem_free(trans, sizeof(xlog_recover_t));
+}
+
+STATIC int
+xlog_recover_commit_trans(
+	xlog_t			*log,
+	xlog_recover_t		**q,
+	xlog_recover_t		*trans,
+	int			pass)
+{
+	int			error;
+
+	if ((error = xlog_recover_unlink_tid(q, trans)))
+		return error;
+	if ((error = xlog_recover_do_trans(log, trans, pass)))
+		return error;
+	xlog_recover_free_trans(trans);			/* no error */
+	return 0;
+}
+
+STATIC int
+xlog_recover_unmount_trans(
+	xlog_recover_t		*trans)
+{
+	/* Do nothing now */
+	xlog_warn("XFS: xlog_recover_unmount_trans: Unmount LR");
+	return 0;
+}
+
+/*
+ * There are two valid states of the r_state field.  0 indicates that the
+ * transaction structure is in a normal state.  We have either seen the
+ * start of the transaction or the last operation we added was not a partial
+ * operation.  If the last operation we added to the transaction was a
+ * partial operation, we need to mark r_state with XLOG_WAS_CONT_TRANS.
+ *
+ * NOTE: skip LRs with 0 data length.
+ */
+STATIC int
+xlog_recover_process_data(
+	xlog_t			*log,
+	xlog_recover_t		*rhash[],
+	xlog_rec_header_t	*rhead,
+	xfs_caddr_t		dp,
+	int			pass)
+{
+	xfs_caddr_t		lp;
+	int			num_logops;
+	xlog_op_header_t	*ohead;
+	xlog_recover_t		*trans;
+	xlog_tid_t		tid;
+	int			error;
+	unsigned long		hash;
+	uint			flags;
+
+	lp = dp + INT_GET(rhead->h_len, ARCH_CONVERT);
+	num_logops = INT_GET(rhead->h_num_logops, ARCH_CONVERT);
+
+	/* check the log format matches our own - else we can't recover */
+	if (xlog_header_check_recover(log->l_mp, rhead))
+		return (XFS_ERROR(EIO));
+
+	while ((dp < lp) && num_logops) {
+		ASSERT(dp + sizeof(xlog_op_header_t) <= lp);
+		ohead = (xlog_op_header_t *)dp;
+		dp += sizeof(xlog_op_header_t);
+		if (ohead->oh_clientid != XFS_TRANSACTION &&
+		    ohead->oh_clientid != XFS_LOG) {
+			xlog_warn(
+		"XFS: xlog_recover_process_data: bad clientid");
+			ASSERT(0);
+			return (XFS_ERROR(EIO));
+		}
+		tid = INT_GET(ohead->oh_tid, ARCH_CONVERT);
+		hash = XLOG_RHASH(tid);
+		trans = xlog_recover_find_tid(rhash[hash], tid);
+		if (trans == NULL) {		   /* not found; add new tid */
+			if (ohead->oh_flags & XLOG_START_TRANS)
+				xlog_recover_new_tid(&rhash[hash], tid,
+					INT_GET(rhead->h_lsn, ARCH_CONVERT));
+		} else {
+			ASSERT(dp+INT_GET(ohead->oh_len, ARCH_CONVERT) <= lp);
+			flags = ohead->oh_flags & ~XLOG_END_TRANS;
+			if (flags & XLOG_WAS_CONT_TRANS)
+				flags &= ~XLOG_CONTINUE_TRANS;
+			switch (flags) {
+			case XLOG_COMMIT_TRANS:
+				error = xlog_recover_commit_trans(log,
+						&rhash[hash], trans, pass);
+				break;
+			case XLOG_UNMOUNT_TRANS:
+				error = xlog_recover_unmount_trans(trans);
+				break;
+			case XLOG_WAS_CONT_TRANS:
+				error = xlog_recover_add_to_cont_trans(trans,
+						dp, INT_GET(ohead->oh_len,
+							ARCH_CONVERT));
+				break;
+			case XLOG_START_TRANS:
+				xlog_warn(
+			"XFS: xlog_recover_process_data: bad transaction");
+				ASSERT(0);
+				error = XFS_ERROR(EIO);
+				break;
+			case 0:
+			case XLOG_CONTINUE_TRANS:
+				error = xlog_recover_add_to_trans(trans,
+						dp, INT_GET(ohead->oh_len,
+							ARCH_CONVERT));
+				break;
+			default:
+				xlog_warn(
+			"XFS: xlog_recover_process_data: bad flag");
+				ASSERT(0);
+				error = XFS_ERROR(EIO);
+				break;
+			}
+			if (error)
+				return error;
+		}
+		dp += INT_GET(ohead->oh_len, ARCH_CONVERT);
+		num_logops--;
+	}
+	return 0;
+}
+
+/*
+ * Process an extent free intent item that was recovered from
+ * the log.  We need to free the extents that it describes.
+ */
+STATIC void
+xlog_recover_process_efi(
+	xfs_mount_t		*mp,
+	xfs_efi_log_item_t	*efip)
+{
+	xfs_efd_log_item_t	*efdp;
+	xfs_trans_t		*tp;
+	int			i;
+	xfs_extent_t		*extp;
+	xfs_fsblock_t		startblock_fsb;
+
+	ASSERT(!(efip->efi_flags & XFS_EFI_RECOVERED));
+
+	/*
+	 * First check the validity of the extents described by the
+	 * EFI.  If any are bad, then assume that all are bad and
+	 * just toss the EFI.
+	 */
+	for (i = 0; i < efip->efi_format.efi_nextents; i++) {
+		extp = &(efip->efi_format.efi_extents[i]);
+		startblock_fsb = XFS_BB_TO_FSB(mp,
+				   XFS_FSB_TO_DADDR(mp, extp->ext_start));
+		if ((startblock_fsb == 0) ||
+		    (extp->ext_len == 0) ||
+		    (startblock_fsb >= mp->m_sb.sb_dblocks) ||
+		    (extp->ext_len >= mp->m_sb.sb_agblocks)) {
+			/*
+			 * This will pull the EFI from the AIL and
+			 * free the memory associated with it.
+			 */
+			xfs_efi_release(efip, efip->efi_format.efi_nextents);
+			return;
+		}
+	}
+
+	tp = xfs_trans_alloc(mp, 0);
+	xfs_trans_reserve(tp, 0, XFS_ITRUNCATE_LOG_RES(mp), 0, 0, 0);
+	efdp = xfs_trans_get_efd(tp, efip, efip->efi_format.efi_nextents);
+
+	for (i = 0; i < efip->efi_format.efi_nextents; i++) {
+		extp = &(efip->efi_format.efi_extents[i]);
+		xfs_free_extent(tp, extp->ext_start, extp->ext_len);
+		xfs_trans_log_efd_extent(tp, efdp, extp->ext_start,
+					 extp->ext_len);
+	}
+
+	efip->efi_flags |= XFS_EFI_RECOVERED;
+	xfs_trans_commit(tp, 0, NULL);
+}
+
+/*
+ * Verify that once we've encountered something other than an EFI
+ * in the AIL that there are no more EFIs in the AIL.
+ */
+#if defined(DEBUG)
+STATIC void
+xlog_recover_check_ail(
+	xfs_mount_t		*mp,
+	xfs_log_item_t		*lip,
+	int			gen)
+{
+	int			orig_gen = gen;
+
+	do {
+		ASSERT(lip->li_type != XFS_LI_EFI);
+		lip = xfs_trans_next_ail(mp, lip, &gen, NULL);
+		/*
+		 * The check will be bogus if we restart from the
+		 * beginning of the AIL, so ASSERT that we don't.
+		 * We never should since we're holding the AIL lock
+		 * the entire time.
+		 */
+		ASSERT(gen == orig_gen);
+	} while (lip != NULL);
+}
+#endif	/* DEBUG */
+
+/*
+ * When this is called, all of the EFIs which did not have
+ * corresponding EFDs should be in the AIL.  What we do now
+ * is free the extents associated with each one.
+ *
+ * Since we process the EFIs in normal transactions, they
+ * will be removed at some point after the commit.  This prevents
+ * us from just walking down the list processing each one.
+ * We'll use a flag in the EFI to skip those that we've already
+ * processed and use the AIL iteration mechanism's generation
+ * count to try to speed this up at least a bit.
+ *
+ * When we start, we know that the EFIs are the only things in
+ * the AIL.  As we process them, however, other items are added
+ * to the AIL.  Since everything added to the AIL must come after
+ * everything already in the AIL, we stop processing as soon as
+ * we see something other than an EFI in the AIL.
+ */
+STATIC void
+xlog_recover_process_efis(
+	xlog_t			*log)
+{
+	xfs_log_item_t		*lip;
+	xfs_efi_log_item_t	*efip;
+	int			gen;
+	xfs_mount_t		*mp;
+	SPLDECL(s);
+
+	mp = log->l_mp;
+	AIL_LOCK(mp,s);
+
+	lip = xfs_trans_first_ail(mp, &gen);
+	while (lip != NULL) {
+		/*
+		 * We're done when we see something other than an EFI.
+		 */
+		if (lip->li_type != XFS_LI_EFI) {
+			xlog_recover_check_ail(mp, lip, gen);
+			break;
+		}
+
+		/*
+		 * Skip EFIs that we've already processed.
+		 */
+		efip = (xfs_efi_log_item_t *)lip;
+		if (efip->efi_flags & XFS_EFI_RECOVERED) {
+			lip = xfs_trans_next_ail(mp, lip, &gen, NULL);
+			continue;
+		}
+
+		AIL_UNLOCK(mp, s);
+		xlog_recover_process_efi(mp, efip);
+		AIL_LOCK(mp,s);
+		lip = xfs_trans_next_ail(mp, lip, &gen, NULL);
+	}
+	AIL_UNLOCK(mp, s);
+}
+
+/*
+ * This routine performs a transaction to null out a bad inode pointer
+ * in an agi unlinked inode hash bucket.
+ */
+STATIC void
+xlog_recover_clear_agi_bucket(
+	xfs_mount_t	*mp,
+	xfs_agnumber_t	agno,
+	int		bucket)
+{
+	xfs_trans_t	*tp;
+	xfs_agi_t	*agi;
+	xfs_buf_t	*agibp;
+	int		offset;
+	int		error;
+
+	tp = xfs_trans_alloc(mp, XFS_TRANS_CLEAR_AGI_BUCKET);
+	xfs_trans_reserve(tp, 0, XFS_CLEAR_AGI_BUCKET_LOG_RES(mp), 0, 0, 0);
+
+	error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp,
+				   XFS_AG_DADDR(mp, agno, XFS_AGI_DADDR(mp)),
+				   XFS_FSS_TO_BB(mp, 1), 0, &agibp);
+	if (error) {
+		xfs_trans_cancel(tp, XFS_TRANS_ABORT);
+		return;
+	}
+
+	agi = XFS_BUF_TO_AGI(agibp);
+	if (INT_GET(agi->agi_magicnum, ARCH_CONVERT) != XFS_AGI_MAGIC) {
+		xfs_trans_cancel(tp, XFS_TRANS_ABORT);
+		return;
+	}
+	ASSERT(INT_GET(agi->agi_magicnum, ARCH_CONVERT) == XFS_AGI_MAGIC);
+
+	INT_SET(agi->agi_unlinked[bucket], ARCH_CONVERT, NULLAGINO);
+	offset = offsetof(xfs_agi_t, agi_unlinked) +
+		 (sizeof(xfs_agino_t) * bucket);
+	xfs_trans_log_buf(tp, agibp, offset,
+			  (offset + sizeof(xfs_agino_t) - 1));
+
+	(void) xfs_trans_commit(tp, 0, NULL);
+}
+
+/*
+ * xlog_iunlink_recover
+ *
+ * This is called during recovery to process any inodes which
+ * we unlinked but not freed when the system crashed.  These
+ * inodes will be on the lists in the AGI blocks.  What we do
+ * here is scan all the AGIs and fully truncate and free any
+ * inodes found on the lists.  Each inode is removed from the
+ * lists when it has been fully truncated and is freed.  The
+ * freeing of the inode and its removal from the list must be
+ * atomic.
+ */
+void
+xlog_recover_process_iunlinks(
+	xlog_t		*log)
+{
+	xfs_mount_t	*mp;
+	xfs_agnumber_t	agno;
+	xfs_agi_t	*agi;
+	xfs_buf_t	*agibp;
+	xfs_buf_t	*ibp;
+	xfs_dinode_t	*dip;
+	xfs_inode_t	*ip;
+	xfs_agino_t	agino;
+	xfs_ino_t	ino;
+	int		bucket;
+	int		error;
+	uint		mp_dmevmask;
+
+	mp = log->l_mp;
+
+	/*
+	 * Prevent any DMAPI event from being sent while in this function.
+	 */
+	mp_dmevmask = mp->m_dmevmask;
+	mp->m_dmevmask = 0;
+
+	for (agno = 0; agno < mp->m_sb.sb_agcount; agno++) {
+		/*
+		 * Find the agi for this ag.
+		 */
+		agibp = xfs_buf_read(mp->m_ddev_targp,
+				XFS_AG_DADDR(mp, agno, XFS_AGI_DADDR(mp)),
+				XFS_FSS_TO_BB(mp, 1), 0);
+		if (XFS_BUF_ISERROR(agibp)) {
+			xfs_ioerror_alert("xlog_recover_process_iunlinks(#1)",
+				log->l_mp, agibp,
+				XFS_AG_DADDR(mp, agno, XFS_AGI_DADDR(mp)));
+		}
+		agi = XFS_BUF_TO_AGI(agibp);
+		ASSERT(XFS_AGI_MAGIC ==
+			INT_GET(agi->agi_magicnum, ARCH_CONVERT));
+
+		for (bucket = 0; bucket < XFS_AGI_UNLINKED_BUCKETS; bucket++) {
+
+			agino = INT_GET(agi->agi_unlinked[bucket], ARCH_CONVERT);
+			while (agino != NULLAGINO) {
+
+				/*
+				 * Release the agi buffer so that it can
+				 * be acquired in the normal course of the
+				 * transaction to truncate and free the inode.
+				 */
+				xfs_buf_relse(agibp);
+
+				ino = XFS_AGINO_TO_INO(mp, agno, agino);
+				error = xfs_iget(mp, NULL, ino, 0, 0, &ip, 0);
+				ASSERT(error || (ip != NULL));
+
+				if (!error) {
+					/*
+					 * Get the on disk inode to find the
+					 * next inode in the bucket.
+					 */
+					error = xfs_itobp(mp, NULL, ip, &dip,
+							&ibp, 0);
+					ASSERT(error || (dip != NULL));
+				}
+
+				if (!error) {
+					ASSERT(ip->i_d.di_nlink == 0);
+
+					/* setup for the next pass */
+					agino = INT_GET(dip->di_next_unlinked,
+							ARCH_CONVERT);
+					xfs_buf_relse(ibp);
+					/*
+					 * Prevent any DMAPI event from
+					 * being sent when the
+					 * reference on the inode is
+					 * dropped.
+					 */
+					ip->i_d.di_dmevmask = 0;
+
+					/*
+					 * If this is a new inode, handle
+					 * it specially.  Otherwise,
+					 * just drop our reference to the
+					 * inode.  If there are no
+					 * other references, this will
+					 * send the inode to
+					 * xfs_inactive() which will
+					 * truncate the file and free
+					 * the inode.
+					 */
+					if (ip->i_d.di_mode == 0)
+						xfs_iput_new(ip, 0);
+					else
+						VN_RELE(XFS_ITOV(ip));
+				} else {
+					/*
+					 * We can't read in the inode
+					 * this bucket points to, or
+					 * this inode is messed up.  Just
+					 * ditch this bucket of inodes.  We
+					 * will lose some inodes and space,
+					 * but at least we won't hang.  Call
+					 * xlog_recover_clear_agi_bucket()
+					 * to perform a transaction to clear
+					 * the inode pointer in the bucket.
+					 */
+					xlog_recover_clear_agi_bucket(mp, agno,
+							bucket);
+
+					agino = NULLAGINO;
+				}
+
+				/*
+				 * Reacquire the agibuffer and continue around
+				 * the loop.
+				 */
+				agibp = xfs_buf_read(mp->m_ddev_targp,
+						XFS_AG_DADDR(mp, agno,
+							XFS_AGI_DADDR(mp)),
+						XFS_FSS_TO_BB(mp, 1), 0);
+				if (XFS_BUF_ISERROR(agibp)) {
+					xfs_ioerror_alert(
+				"xlog_recover_process_iunlinks(#2)",
+						log->l_mp, agibp,
+						XFS_AG_DADDR(mp, agno,
+							XFS_AGI_DADDR(mp)));
+				}
+				agi = XFS_BUF_TO_AGI(agibp);
+				ASSERT(XFS_AGI_MAGIC == INT_GET(
+					agi->agi_magicnum, ARCH_CONVERT));
+			}
+		}
+
+		/*
+		 * Release the buffer for the current agi so we can
+		 * go on to the next one.
+		 */
+		xfs_buf_relse(agibp);
+	}
+
+	mp->m_dmevmask = mp_dmevmask;
+}
+
+
+#ifdef DEBUG
+STATIC void
+xlog_pack_data_checksum(
+	xlog_t		*log,
+	xlog_in_core_t	*iclog,
+	int		size)
+{
+	int		i;
+	uint		*up;
+	uint		chksum = 0;
+
+	up = (uint *)iclog->ic_datap;
+	/* divide length by 4 to get # words */
+	for (i = 0; i < (size >> 2); i++) {
+		chksum ^= INT_GET(*up, ARCH_CONVERT);
+		up++;
+	}
+	INT_SET(iclog->ic_header.h_chksum, ARCH_CONVERT, chksum);
+}
+#else
+#define xlog_pack_data_checksum(log, iclog, size)
+#endif
+
+/*
+ * Stamp cycle number in every block
+ */
+void
+xlog_pack_data(
+	xlog_t			*log,
+	xlog_in_core_t		*iclog,
+	int			roundoff)
+{
+	int			i, j, k;
+	int			size = iclog->ic_offset + roundoff;
+	uint			cycle_lsn;
+	xfs_caddr_t		dp;
+	xlog_in_core_2_t	*xhdr;
+
+	xlog_pack_data_checksum(log, iclog, size);
+
+	cycle_lsn = CYCLE_LSN_NOCONV(iclog->ic_header.h_lsn, ARCH_CONVERT);
+
+	dp = iclog->ic_datap;
+	for (i = 0; i < BTOBB(size) &&
+		i < (XLOG_HEADER_CYCLE_SIZE / BBSIZE); i++) {
+		iclog->ic_header.h_cycle_data[i] = *(uint *)dp;
+		*(uint *)dp = cycle_lsn;
+		dp += BBSIZE;
+	}
+
+	if (XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb)) {
+		xhdr = (xlog_in_core_2_t *)&iclog->ic_header;
+		for ( ; i < BTOBB(size); i++) {
+			j = i / (XLOG_HEADER_CYCLE_SIZE / BBSIZE);
+			k = i % (XLOG_HEADER_CYCLE_SIZE / BBSIZE);
+			xhdr[j].hic_xheader.xh_cycle_data[k] = *(uint *)dp;
+			*(uint *)dp = cycle_lsn;
+			dp += BBSIZE;
+		}
+
+		for (i = 1; i < log->l_iclog_heads; i++) {
+			xhdr[i].hic_xheader.xh_cycle = cycle_lsn;
+		}
+	}
+}
+
+#if defined(DEBUG) && defined(XFS_LOUD_RECOVERY)
+STATIC void
+xlog_unpack_data_checksum(
+	xlog_rec_header_t	*rhead,
+	xfs_caddr_t		dp,
+	xlog_t			*log)
+{
+	uint			*up = (uint *)dp;
+	uint			chksum = 0;
+	int			i;
+
+	/* divide length by 4 to get # words */
+	for (i=0; i < INT_GET(rhead->h_len, ARCH_CONVERT) >> 2; i++) {
+		chksum ^= INT_GET(*up, ARCH_CONVERT);
+		up++;
+	}
+	if (chksum != INT_GET(rhead->h_chksum, ARCH_CONVERT)) {
+	    if (!INT_ISZERO(rhead->h_chksum, ARCH_CONVERT) ||
+		((log->l_flags & XLOG_CHKSUM_MISMATCH) == 0)) {
+		    cmn_err(CE_DEBUG,
+			"XFS: LogR chksum mismatch: was (0x%x) is (0x%x)",
+			    INT_GET(rhead->h_chksum, ARCH_CONVERT), chksum);
+		    cmn_err(CE_DEBUG,
+"XFS: Disregard message if filesystem was created with non-DEBUG kernel");
+		    if (XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb)) {
+			    cmn_err(CE_DEBUG,
+				"XFS: LogR this is a LogV2 filesystem");
+		    }
+		    log->l_flags |= XLOG_CHKSUM_MISMATCH;
+	    }
+	}
+}
+#else
+#define xlog_unpack_data_checksum(rhead, dp, log)
+#endif
+
+STATIC void
+xlog_unpack_data(
+	xlog_rec_header_t	*rhead,
+	xfs_caddr_t		dp,
+	xlog_t			*log)
+{
+	int			i, j, k;
+	xlog_in_core_2_t	*xhdr;
+
+	for (i = 0; i < BTOBB(INT_GET(rhead->h_len, ARCH_CONVERT)) &&
+		  i < (XLOG_HEADER_CYCLE_SIZE / BBSIZE); i++) {
+		*(uint *)dp = *(uint *)&rhead->h_cycle_data[i];
+		dp += BBSIZE;
+	}
+
+	if (XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb)) {
+		xhdr = (xlog_in_core_2_t *)rhead;
+		for ( ; i < BTOBB(INT_GET(rhead->h_len, ARCH_CONVERT)); i++) {
+			j = i / (XLOG_HEADER_CYCLE_SIZE / BBSIZE);
+			k = i % (XLOG_HEADER_CYCLE_SIZE / BBSIZE);
+			*(uint *)dp = xhdr[j].hic_xheader.xh_cycle_data[k];
+			dp += BBSIZE;
+		}
+	}
+
+	xlog_unpack_data_checksum(rhead, dp, log);
+}
+
+STATIC int
+xlog_valid_rec_header(
+	xlog_t			*log,
+	xlog_rec_header_t	*rhead,
+	xfs_daddr_t		blkno)
+{
+	int			hlen;
+
+	if (unlikely(
+	    (INT_GET(rhead->h_magicno, ARCH_CONVERT) !=
+			XLOG_HEADER_MAGIC_NUM))) {
+		XFS_ERROR_REPORT("xlog_valid_rec_header(1)",
+				XFS_ERRLEVEL_LOW, log->l_mp);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+	if (unlikely(
+	    (INT_ISZERO(rhead->h_version, ARCH_CONVERT) ||
+	    (INT_GET(rhead->h_version, ARCH_CONVERT) &
+			(~XLOG_VERSION_OKBITS)) != 0))) {
+		xlog_warn("XFS: %s: unrecognised log version (%d).",
+			__FUNCTION__, INT_GET(rhead->h_version, ARCH_CONVERT));
+		return XFS_ERROR(EIO);
+	}
+
+	/* LR body must have data or it wouldn't have been written */
+	hlen = INT_GET(rhead->h_len, ARCH_CONVERT);
+	if (unlikely( hlen <= 0 || hlen > INT_MAX )) {
+		XFS_ERROR_REPORT("xlog_valid_rec_header(2)",
+				XFS_ERRLEVEL_LOW, log->l_mp);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+	if (unlikely( blkno > log->l_logBBsize || blkno > INT_MAX )) {
+		XFS_ERROR_REPORT("xlog_valid_rec_header(3)",
+				XFS_ERRLEVEL_LOW, log->l_mp);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+	return 0;
+}
+
+/*
+ * Read the log from tail to head and process the log records found.
+ * Handle the two cases where the tail and head are in the same cycle
+ * and where the active portion of the log wraps around the end of
+ * the physical log separately.  The pass parameter is passed through
+ * to the routines called to process the data and is not looked at
+ * here.
+ */
+STATIC int
+xlog_do_recovery_pass(
+	xlog_t			*log,
+	xfs_daddr_t		head_blk,
+	xfs_daddr_t		tail_blk,
+	int			pass)
+{
+	xlog_rec_header_t	*rhead;
+	xfs_daddr_t		blk_no;
+	xfs_caddr_t		bufaddr, offset;
+	xfs_buf_t		*hbp, *dbp;
+	int			error = 0, h_size;
+	int			bblks, split_bblks;
+	int			hblks, split_hblks, wrapped_hblks;
+	xlog_recover_t		*rhash[XLOG_RHASH_SIZE];
+
+	ASSERT(head_blk != tail_blk);
+
+	/*
+	 * Read the header of the tail block and get the iclog buffer size from
+	 * h_size.  Use this to tell how many sectors make up the log header.
+	 */
+	if (XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb)) {
+		/*
+		 * When using variable length iclogs, read first sector of
+		 * iclog header and extract the header size from it.  Get a
+		 * new hbp that is the correct size.
+		 */
+		hbp = xlog_get_bp(log, 1);
+		if (!hbp)
+			return ENOMEM;
+		if ((error = xlog_bread(log, tail_blk, 1, hbp)))
+			goto bread_err1;
+		offset = xlog_align(log, tail_blk, 1, hbp);
+		rhead = (xlog_rec_header_t *)offset;
+		error = xlog_valid_rec_header(log, rhead, tail_blk);
+		if (error)
+			goto bread_err1;
+		h_size = INT_GET(rhead->h_size, ARCH_CONVERT);
+		if ((INT_GET(rhead->h_version, ARCH_CONVERT)
+				& XLOG_VERSION_2) &&
+		    (h_size > XLOG_HEADER_CYCLE_SIZE)) {
+			hblks = h_size / XLOG_HEADER_CYCLE_SIZE;
+			if (h_size % XLOG_HEADER_CYCLE_SIZE)
+				hblks++;
+			xlog_put_bp(hbp);
+			hbp = xlog_get_bp(log, hblks);
+		} else {
+			hblks = 1;
+		}
+	} else {
+		ASSERT(log->l_sectbb_log == 0);
+		hblks = 1;
+		hbp = xlog_get_bp(log, 1);
+		h_size = XLOG_BIG_RECORD_BSIZE;
+	}
+
+	if (!hbp)
+		return ENOMEM;
+	dbp = xlog_get_bp(log, BTOBB(h_size));
+	if (!dbp) {
+		xlog_put_bp(hbp);
+		return ENOMEM;
+	}
+
+	memset(rhash, 0, sizeof(rhash));
+	if (tail_blk <= head_blk) {
+		for (blk_no = tail_blk; blk_no < head_blk; ) {
+			if ((error = xlog_bread(log, blk_no, hblks, hbp)))
+				goto bread_err2;
+			offset = xlog_align(log, blk_no, hblks, hbp);
+			rhead = (xlog_rec_header_t *)offset;
+			error = xlog_valid_rec_header(log, rhead, blk_no);
+			if (error)
+				goto bread_err2;
+
+			/* blocks in data section */
+			bblks = (int)BTOBB(INT_GET(rhead->h_len, ARCH_CONVERT));
+			error = xlog_bread(log, blk_no + hblks, bblks, dbp);
+			if (error)
+				goto bread_err2;
+			offset = xlog_align(log, blk_no + hblks, bblks, dbp);
+			xlog_unpack_data(rhead, offset, log);
+			if ((error = xlog_recover_process_data(log,
+						rhash, rhead, offset, pass)))
+				goto bread_err2;
+			blk_no += bblks + hblks;
+		}
+	} else {
+		/*
+		 * Perform recovery around the end of the physical log.
+		 * When the head is not on the same cycle number as the tail,
+		 * we can't do a sequential recovery as above.
+		 */
+		blk_no = tail_blk;
+		while (blk_no < log->l_logBBsize) {
+			/*
+			 * Check for header wrapping around physical end-of-log
+			 */
+			offset = NULL;
+			split_hblks = 0;
+			wrapped_hblks = 0;
+			if (blk_no + hblks <= log->l_logBBsize) {
+				/* Read header in one read */
+				error = xlog_bread(log, blk_no, hblks, hbp);
+				if (error)
+					goto bread_err2;
+				offset = xlog_align(log, blk_no, hblks, hbp);
+			} else {
+				/* This LR is split across physical log end */
+				if (blk_no != log->l_logBBsize) {
+					/* some data before physical log end */
+					ASSERT(blk_no <= INT_MAX);
+					split_hblks = log->l_logBBsize - (int)blk_no;
+					ASSERT(split_hblks > 0);
+					if ((error = xlog_bread(log, blk_no,
+							split_hblks, hbp)))
+						goto bread_err2;
+					offset = xlog_align(log, blk_no,
+							split_hblks, hbp);
+				}
+				/*
+				 * Note: this black magic still works with
+				 * large sector sizes (non-512) only because:
+				 * - we increased the buffer size originally
+				 *   by 1 sector giving us enough extra space
+				 *   for the second read;
+				 * - the log start is guaranteed to be sector
+				 *   aligned;
+				 * - we read the log end (LR header start)
+				 *   _first_, then the log start (LR header end)
+				 *   - order is important.
+				 */
+				bufaddr = XFS_BUF_PTR(hbp);
+				XFS_BUF_SET_PTR(hbp,
+						bufaddr + BBTOB(split_hblks),
+						BBTOB(hblks - split_hblks));
+				wrapped_hblks = hblks - split_hblks;
+				error = xlog_bread(log, 0, wrapped_hblks, hbp);
+				if (error)
+					goto bread_err2;
+				XFS_BUF_SET_PTR(hbp, bufaddr, BBTOB(hblks));
+				if (!offset)
+					offset = xlog_align(log, 0,
+							wrapped_hblks, hbp);
+			}
+			rhead = (xlog_rec_header_t *)offset;
+			error = xlog_valid_rec_header(log, rhead,
+						split_hblks ? blk_no : 0);
+			if (error)
+				goto bread_err2;
+
+			bblks = (int)BTOBB(INT_GET(rhead->h_len, ARCH_CONVERT));
+			blk_no += hblks;
+
+			/* Read in data for log record */
+			if (blk_no + bblks <= log->l_logBBsize) {
+				error = xlog_bread(log, blk_no, bblks, dbp);
+				if (error)
+					goto bread_err2;
+				offset = xlog_align(log, blk_no, bblks, dbp);
+			} else {
+				/* This log record is split across the
+				 * physical end of log */
+				offset = NULL;
+				split_bblks = 0;
+				if (blk_no != log->l_logBBsize) {
+					/* some data is before the physical
+					 * end of log */
+					ASSERT(!wrapped_hblks);
+					ASSERT(blk_no <= INT_MAX);
+					split_bblks =
+						log->l_logBBsize - (int)blk_no;
+					ASSERT(split_bblks > 0);
+					if ((error = xlog_bread(log, blk_no,
+							split_bblks, dbp)))
+						goto bread_err2;
+					offset = xlog_align(log, blk_no,
+							split_bblks, dbp);
+				}
+				/*
+				 * Note: this black magic still works with
+				 * large sector sizes (non-512) only because:
+				 * - we increased the buffer size originally
+				 *   by 1 sector giving us enough extra space
+				 *   for the second read;
+				 * - the log start is guaranteed to be sector
+				 *   aligned;
+				 * - we read the log end (LR header start)
+				 *   _first_, then the log start (LR header end)
+				 *   - order is important.
+				 */
+				bufaddr = XFS_BUF_PTR(dbp);
+				XFS_BUF_SET_PTR(dbp,
+						bufaddr + BBTOB(split_bblks),
+						BBTOB(bblks - split_bblks));
+				if ((error = xlog_bread(log, wrapped_hblks,
+						bblks - split_bblks, dbp)))
+					goto bread_err2;
+				XFS_BUF_SET_PTR(dbp, bufaddr, h_size);
+				if (!offset)
+					offset = xlog_align(log, wrapped_hblks,
+						bblks - split_bblks, dbp);
+			}
+			xlog_unpack_data(rhead, offset, log);
+			if ((error = xlog_recover_process_data(log, rhash,
+							rhead, offset, pass)))
+				goto bread_err2;
+			blk_no += bblks;
+		}
+
+		ASSERT(blk_no >= log->l_logBBsize);
+		blk_no -= log->l_logBBsize;
+
+		/* read first part of physical log */
+		while (blk_no < head_blk) {
+			if ((error = xlog_bread(log, blk_no, hblks, hbp)))
+				goto bread_err2;
+			offset = xlog_align(log, blk_no, hblks, hbp);
+			rhead = (xlog_rec_header_t *)offset;
+			error = xlog_valid_rec_header(log, rhead, blk_no);
+			if (error)
+				goto bread_err2;
+			bblks = (int)BTOBB(INT_GET(rhead->h_len, ARCH_CONVERT));
+			if ((error = xlog_bread(log, blk_no+hblks, bblks, dbp)))
+				goto bread_err2;
+			offset = xlog_align(log, blk_no+hblks, bblks, dbp);
+			xlog_unpack_data(rhead, offset, log);
+			if ((error = xlog_recover_process_data(log, rhash,
+							rhead, offset, pass)))
+				goto bread_err2;
+			blk_no += bblks + hblks;
+		}
+	}
+
+ bread_err2:
+	xlog_put_bp(dbp);
+ bread_err1:
+	xlog_put_bp(hbp);
+	return error;
+}
+
+/*
+ * Do the recovery of the log.  We actually do this in two phases.
+ * The two passes are necessary in order to implement the function
+ * of cancelling a record written into the log.  The first pass
+ * determines those things which have been cancelled, and the
+ * second pass replays log items normally except for those which
+ * have been cancelled.  The handling of the replay and cancellations
+ * takes place in the log item type specific routines.
+ *
+ * The table of items which have cancel records in the log is allocated
+ * and freed at this level, since only here do we know when all of
+ * the log recovery has been completed.
+ */
+STATIC int
+xlog_do_log_recovery(
+	xlog_t		*log,
+	xfs_daddr_t	head_blk,
+	xfs_daddr_t	tail_blk)
+{
+	int		error;
+
+	ASSERT(head_blk != tail_blk);
+
+	/*
+	 * First do a pass to find all of the cancelled buf log items.
+	 * Store them in the buf_cancel_table for use in the second pass.
+	 */
+	log->l_buf_cancel_table =
+		(xfs_buf_cancel_t **)kmem_zalloc(XLOG_BC_TABLE_SIZE *
+						 sizeof(xfs_buf_cancel_t*),
+						 KM_SLEEP);
+	error = xlog_do_recovery_pass(log, head_blk, tail_blk,
+				      XLOG_RECOVER_PASS1);
+	if (error != 0) {
+		kmem_free(log->l_buf_cancel_table,
+			  XLOG_BC_TABLE_SIZE * sizeof(xfs_buf_cancel_t*));
+		log->l_buf_cancel_table = NULL;
+		return error;
+	}
+	/*
+	 * Then do a second pass to actually recover the items in the log.
+	 * When it is complete free the table of buf cancel items.
+	 */
+	error = xlog_do_recovery_pass(log, head_blk, tail_blk,
+				      XLOG_RECOVER_PASS2);
+#ifdef DEBUG
+	{
+		int	i;
+
+		for (i = 0; i < XLOG_BC_TABLE_SIZE; i++)
+			ASSERT(log->l_buf_cancel_table[i] == NULL);
+	}
+#endif	/* DEBUG */
+
+	kmem_free(log->l_buf_cancel_table,
+		  XLOG_BC_TABLE_SIZE * sizeof(xfs_buf_cancel_t*));
+	log->l_buf_cancel_table = NULL;
+
+	return error;
+}
+
+/*
+ * Do the actual recovery
+ */
+STATIC int
+xlog_do_recover(
+	xlog_t		*log,
+	xfs_daddr_t	head_blk,
+	xfs_daddr_t	tail_blk)
+{
+	int		error;
+	xfs_buf_t	*bp;
+	xfs_sb_t	*sbp;
+
+	/*
+	 * First replay the images in the log.
+	 */
+	error = xlog_do_log_recovery(log, head_blk, tail_blk);
+	if (error) {
+		return error;
+	}
+
+	XFS_bflush(log->l_mp->m_ddev_targp);
+
+	/*
+	 * If IO errors happened during recovery, bail out.
+	 */
+	if (XFS_FORCED_SHUTDOWN(log->l_mp)) {
+		return (EIO);
+	}
+
+	/*
+	 * We now update the tail_lsn since much of the recovery has completed
+	 * and there may be space available to use.  If there were no extent
+	 * or iunlinks, we can free up the entire log and set the tail_lsn to
+	 * be the last_sync_lsn.  This was set in xlog_find_tail to be the
+	 * lsn of the last known good LR on disk.  If there are extent frees
+	 * or iunlinks they will have some entries in the AIL; so we look at
+	 * the AIL to determine how to set the tail_lsn.
+	 */
+	xlog_assign_tail_lsn(log->l_mp);
+
+	/*
+	 * Now that we've finished replaying all buffer and inode
+	 * updates, re-read in the superblock.
+	 */
+	bp = xfs_getsb(log->l_mp, 0);
+	XFS_BUF_UNDONE(bp);
+	XFS_BUF_READ(bp);
+	xfsbdstrat(log->l_mp, bp);
+	if ((error = xfs_iowait(bp))) {
+		xfs_ioerror_alert("xlog_do_recover",
+				  log->l_mp, bp, XFS_BUF_ADDR(bp));
+		ASSERT(0);
+		xfs_buf_relse(bp);
+		return error;
+	}
+
+	/* Convert superblock from on-disk format */
+	sbp = &log->l_mp->m_sb;
+	xfs_xlatesb(XFS_BUF_TO_SBP(bp), sbp, 1, ARCH_CONVERT, XFS_SB_ALL_BITS);
+	ASSERT(sbp->sb_magicnum == XFS_SB_MAGIC);
+	ASSERT(XFS_SB_GOOD_VERSION(sbp));
+	xfs_buf_relse(bp);
+
+	xlog_recover_check_summary(log);
+
+	/* Normal transactions can now occur */
+	log->l_flags &= ~XLOG_ACTIVE_RECOVERY;
+	return 0;
+}
+
+/*
+ * Perform recovery and re-initialize some log variables in xlog_find_tail.
+ *
+ * Return error or zero.
+ */
+int
+xlog_recover(
+	xlog_t		*log,
+	int		readonly)
+{
+	xfs_daddr_t	head_blk, tail_blk;
+	int		error;
+
+	/* find the tail of the log */
+	if ((error = xlog_find_tail(log, &head_blk, &tail_blk, readonly)))
+		return error;
+
+	if (tail_blk != head_blk) {
+		/* There used to be a comment here:
+		 *
+		 * disallow recovery on read-only mounts.  note -- mount
+		 * checks for ENOSPC and turns it into an intelligent
+		 * error message.
+		 * ...but this is no longer true.  Now, unless you specify
+		 * NORECOVERY (in which case this function would never be
+		 * called), we just go ahead and recover.  We do this all
+		 * under the vfs layer, so we can get away with it unless
+		 * the device itself is read-only, in which case we fail.
+		 */
+		if ((error = xfs_dev_is_read_only(log->l_mp,
+						"recovery required"))) {
+			return error;
+		}
+
+		cmn_err(CE_NOTE,
+			"Starting XFS recovery on filesystem: %s (dev: %s)",
+			log->l_mp->m_fsname, XFS_BUFTARG_NAME(log->l_targ));
+
+		error = xlog_do_recover(log, head_blk, tail_blk);
+		log->l_flags |= XLOG_RECOVERY_NEEDED;
+	}
+	return error;
+}
+
+/*
+ * In the first part of recovery we replay inodes and buffers and build
+ * up the list of extent free items which need to be processed.  Here
+ * we process the extent free items and clean up the on disk unlinked
+ * inode lists.  This is separated from the first part of recovery so
+ * that the root and real-time bitmap inodes can be read in from disk in
+ * between the two stages.  This is necessary so that we can free space
+ * in the real-time portion of the file system.
+ */
+int
+xlog_recover_finish(
+	xlog_t		*log,
+	int		mfsi_flags)
+{
+	/*
+	 * Now we're ready to do the transactions needed for the
+	 * rest of recovery.  Start with completing all the extent
+	 * free intent records and then process the unlinked inode
+	 * lists.  At this point, we essentially run in normal mode
+	 * except that we're still performing recovery actions
+	 * rather than accepting new requests.
+	 */
+	if (log->l_flags & XLOG_RECOVERY_NEEDED) {
+		xlog_recover_process_efis(log);
+		/*
+		 * Sync the log to get all the EFIs out of the AIL.
+		 * This isn't absolutely necessary, but it helps in
+		 * case the unlink transactions would have problems
+		 * pushing the EFIs out of the way.
+		 */
+		xfs_log_force(log->l_mp, (xfs_lsn_t)0,
+			      (XFS_LOG_FORCE | XFS_LOG_SYNC));
+
+		if ( (mfsi_flags & XFS_MFSI_NOUNLINK) == 0 ) {
+			xlog_recover_process_iunlinks(log);
+		}
+
+		xlog_recover_check_summary(log);
+
+		cmn_err(CE_NOTE,
+			"Ending XFS recovery on filesystem: %s (dev: %s)",
+			log->l_mp->m_fsname, XFS_BUFTARG_NAME(log->l_targ));
+		log->l_flags &= ~XLOG_RECOVERY_NEEDED;
+	} else {
+		cmn_err(CE_DEBUG,
+			"!Ending clean XFS mount for filesystem: %s",
+			log->l_mp->m_fsname);
+	}
+	return 0;
+}
+
+
+#if defined(DEBUG)
+/*
+ * Read all of the agf and agi counters and check that they
+ * are consistent with the superblock counters.
+ */
+void
+xlog_recover_check_summary(
+	xlog_t		*log)
+{
+	xfs_mount_t	*mp;
+	xfs_agf_t	*agfp;
+	xfs_agi_t	*agip;
+	xfs_buf_t	*agfbp;
+	xfs_buf_t	*agibp;
+	xfs_daddr_t	agfdaddr;
+	xfs_daddr_t	agidaddr;
+	xfs_buf_t	*sbbp;
+#ifdef XFS_LOUD_RECOVERY
+	xfs_sb_t	*sbp;
+#endif
+	xfs_agnumber_t	agno;
+	__uint64_t	freeblks;
+	__uint64_t	itotal;
+	__uint64_t	ifree;
+
+	mp = log->l_mp;
+
+	freeblks = 0LL;
+	itotal = 0LL;
+	ifree = 0LL;
+	for (agno = 0; agno < mp->m_sb.sb_agcount; agno++) {
+		agfdaddr = XFS_AG_DADDR(mp, agno, XFS_AGF_DADDR(mp));
+		agfbp = xfs_buf_read(mp->m_ddev_targp, agfdaddr,
+				XFS_FSS_TO_BB(mp, 1), 0);
+		if (XFS_BUF_ISERROR(agfbp)) {
+			xfs_ioerror_alert("xlog_recover_check_summary(agf)",
+						mp, agfbp, agfdaddr);
+		}
+		agfp = XFS_BUF_TO_AGF(agfbp);
+		ASSERT(XFS_AGF_MAGIC ==
+			INT_GET(agfp->agf_magicnum, ARCH_CONVERT));
+		ASSERT(XFS_AGF_GOOD_VERSION(
+			INT_GET(agfp->agf_versionnum, ARCH_CONVERT)));
+		ASSERT(INT_GET(agfp->agf_seqno, ARCH_CONVERT) == agno);
+
+		freeblks += INT_GET(agfp->agf_freeblks, ARCH_CONVERT) +
+			    INT_GET(agfp->agf_flcount, ARCH_CONVERT);
+		xfs_buf_relse(agfbp);
+
+		agidaddr = XFS_AG_DADDR(mp, agno, XFS_AGI_DADDR(mp));
+		agibp = xfs_buf_read(mp->m_ddev_targp, agidaddr,
+				XFS_FSS_TO_BB(mp, 1), 0);
+		if (XFS_BUF_ISERROR(agibp)) {
+			xfs_ioerror_alert("xlog_recover_check_summary(agi)",
+					  mp, agibp, agidaddr);
+		}
+		agip = XFS_BUF_TO_AGI(agibp);
+		ASSERT(XFS_AGI_MAGIC ==
+			INT_GET(agip->agi_magicnum, ARCH_CONVERT));
+		ASSERT(XFS_AGI_GOOD_VERSION(
+			INT_GET(agip->agi_versionnum, ARCH_CONVERT)));
+		ASSERT(INT_GET(agip->agi_seqno, ARCH_CONVERT) == agno);
+
+		itotal += INT_GET(agip->agi_count, ARCH_CONVERT);
+		ifree += INT_GET(agip->agi_freecount, ARCH_CONVERT);
+		xfs_buf_relse(agibp);
+	}
+
+	sbbp = xfs_getsb(mp, 0);
+#ifdef XFS_LOUD_RECOVERY
+	sbp = &mp->m_sb;
+	xfs_xlatesb(XFS_BUF_TO_SBP(sbbp), sbp, 1, ARCH_CONVERT, XFS_SB_ALL_BITS);
+	cmn_err(CE_NOTE,
+		"xlog_recover_check_summary: sb_icount %Lu itotal %Lu",
+		sbp->sb_icount, itotal);
+	cmn_err(CE_NOTE,
+		"xlog_recover_check_summary: sb_ifree %Lu itotal %Lu",
+		sbp->sb_ifree, ifree);
+	cmn_err(CE_NOTE,
+		"xlog_recover_check_summary: sb_fdblocks %Lu freeblks %Lu",
+		sbp->sb_fdblocks, freeblks);
+#if 0
+	/*
+	 * This is turned off until I account for the allocation
+	 * btree blocks which live in free space.
+	 */
+	ASSERT(sbp->sb_icount == itotal);
+	ASSERT(sbp->sb_ifree == ifree);
+	ASSERT(sbp->sb_fdblocks == freeblks);
+#endif
+#endif
+	xfs_buf_relse(sbbp);
+}
+#endif /* DEBUG */
diff --git a/fs/xfs/xfs_log_recover.h b/fs/xfs/xfs_log_recover.h
new file mode 100644
index 00000000000000..42158b442b5506
--- /dev/null
+++ b/fs/xfs/xfs_log_recover.h
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef	__XFS_LOG_RECOVER_H__
+#define __XFS_LOG_RECOVER_H__
+
+/*
+ * Macros, structures, prototypes for internal log manager use.
+ */
+
+#define XLOG_RHASH_BITS  4
+#define XLOG_RHASH_SIZE	16
+#define XLOG_RHASH_SHIFT 2
+#define XLOG_RHASH(tid)	\
+	((((__uint32_t)tid)>>XLOG_RHASH_SHIFT) & (XLOG_RHASH_SIZE-1))
+
+#define XLOG_MAX_REGIONS_IN_ITEM   (XFS_MAX_BLOCKSIZE / XFS_BLI_CHUNK / 2 + 1)
+
+
+/*
+ * item headers are in ri_buf[0].  Additional buffers follow.
+ */
+typedef struct xlog_recover_item {
+	struct xlog_recover_item *ri_next;
+	struct xlog_recover_item *ri_prev;
+	int			 ri_type;
+	int			 ri_cnt;	/* count of regions found */
+	int			 ri_total;	/* total regions */
+	xfs_log_iovec_t		 *ri_buf;	/* ptr to regions buffer */
+} xlog_recover_item_t;
+
+struct xlog_tid;
+typedef struct xlog_recover {
+	struct xlog_recover *r_next;
+	xlog_tid_t	    r_log_tid;		/* log's transaction id */
+	xfs_trans_header_t  r_theader;		/* trans header for partial */
+	int		    r_state;		/* not needed */
+	xfs_lsn_t	    r_lsn;		/* xact lsn */
+	xlog_recover_item_t *r_itemq;		/* q for items */
+} xlog_recover_t;
+
+#define ITEM_TYPE(i)	(*(ushort *)(i)->ri_buf[0].i_addr)
+
+/*
+ * This is the number of entries in the l_buf_cancel_table used during
+ * recovery.
+ */
+#define	XLOG_BC_TABLE_SIZE	64
+
+#define	XLOG_RECOVER_PASS1	1
+#define	XLOG_RECOVER_PASS2	2
+
+#endif	/* __XFS_LOG_RECOVER_H__ */
diff --git a/fs/xfs/xfs_mac.h b/fs/xfs/xfs_mac.h
new file mode 100644
index 00000000000000..8d59aaffeb8ec5
--- /dev/null
+++ b/fs/xfs/xfs_mac.h
@@ -0,0 +1,120 @@
+/*
+ * Copyright (c) 2001-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_MAC_H__
+#define __XFS_MAC_H__
+
+/*
+ * Mandatory Access Control
+ *
+ * Layout of a composite MAC label:
+ * ml_list contains the list of categories (MSEN) followed by the list of
+ * divisions (MINT). This is actually a header for the data structure which
+ * will have an ml_list with more than one element.
+ *
+ *      -------------------------------
+ *      | ml_msen_type | ml_mint_type |
+ *      -------------------------------
+ *      | ml_level     | ml_grade     |
+ *      -------------------------------
+ *      | ml_catcount                 |
+ *      -------------------------------
+ *      | ml_divcount                 |
+ *      -------------------------------
+ *      | category 1                  |
+ *      | . . .                       |
+ *      | category N                  | (where N = ml_catcount)
+ *      -------------------------------
+ *      | division 1                  |
+ *      | . . .                       |
+ *      | division M                  | (where M = ml_divcount)
+ *      -------------------------------
+ */
+#define XFS_MAC_MAX_SETS	250
+typedef struct xfs_mac_label {
+	__uint8_t	ml_msen_type;	/* MSEN label type */
+	__uint8_t	ml_mint_type;	/* MINT label type */
+	__uint8_t	ml_level;	/* Hierarchical level */
+	__uint8_t	ml_grade;	/* Hierarchical grade */
+	__uint16_t	ml_catcount;	/* Category count */
+	__uint16_t	ml_divcount;	/* Division count */
+					/* Category set, then Division set */
+	__uint16_t	ml_list[XFS_MAC_MAX_SETS];
+} xfs_mac_label_t;
+
+/* MSEN label type names. Choose an upper case ASCII character.  */
+#define XFS_MSEN_ADMIN_LABEL	'A'	/* Admin: low<admin != tcsec<high */
+#define XFS_MSEN_EQUAL_LABEL	'E'	/* Wildcard - always equal */
+#define XFS_MSEN_HIGH_LABEL	'H'	/* System High - always dominates */
+#define XFS_MSEN_MLD_HIGH_LABEL	'I'	/* System High, multi-level dir */
+#define XFS_MSEN_LOW_LABEL	'L'	/* System Low - always dominated */
+#define XFS_MSEN_MLD_LABEL	'M'	/* TCSEC label on a multi-level dir */
+#define XFS_MSEN_MLD_LOW_LABEL	'N'	/* System Low, multi-level dir */
+#define XFS_MSEN_TCSEC_LABEL	'T'	/* TCSEC label */
+#define XFS_MSEN_UNKNOWN_LABEL	'U'	/* unknown label */
+
+/* MINT label type names. Choose a lower case ASCII character.  */
+#define XFS_MINT_BIBA_LABEL	'b'	/* Dual of a TCSEC label */
+#define XFS_MINT_EQUAL_LABEL	'e'	/* Wildcard - always equal */
+#define XFS_MINT_HIGH_LABEL	'h'	/* High Grade - always dominates */
+#define XFS_MINT_LOW_LABEL	'l'	/* Low Grade - always dominated */
+
+/* On-disk XFS extended attribute names */
+#define SGI_MAC_FILE	"SGI_MAC_FILE"
+#define SGI_MAC_FILE_SIZE	(sizeof(SGI_MAC_FILE)-1)
+
+
+#ifdef __KERNEL__
+
+#ifdef CONFIG_FS_POSIX_MAC
+
+/* NOT YET IMPLEMENTED */
+
+#define MACEXEC		00100
+#define MACWRITE	00200
+#define MACREAD		00400
+
+struct xfs_inode;
+extern int  xfs_mac_iaccess(struct xfs_inode *, mode_t, cred_t *);
+
+#define _MAC_XFS_IACCESS(i,m,c) (xfs_mac_iaccess(i,m,c))
+#define _MAC_VACCESS(v,c,m)	(xfs_mac_vaccess(v,c,m))
+#define _MAC_EXISTS		xfs_mac_vhaslabel
+
+#else
+#define _MAC_XFS_IACCESS(i,m,c)	(0)
+#define _MAC_VACCESS(v,c,m)	(0)
+#define _MAC_EXISTS		(NULL)
+#endif
+
+#endif	/* __KERNEL__ */
+
+#endif	/* __XFS_MAC_H__ */
diff --git a/fs/xfs/xfs_macros.c b/fs/xfs/xfs_macros.c
new file mode 100644
index 00000000000000..626be21c1e282d
--- /dev/null
+++ b/fs/xfs/xfs_macros.c
@@ -0,0 +1,2245 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#define	XFS_MACRO_C
+
+#include "xfs.h"
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_btree.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_ialloc.h"
+#include "xfs_inode_item.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_rw.h"
+#include "xfs_log_priv.h"
+#include "xfs_da_btree.h"
+#include "xfs_attr_leaf.h"
+#include "xfs_dir_leaf.h"
+#include "xfs_dir2_data.h"
+#include "xfs_dir2_leaf.h"
+#include "xfs_dir2_block.h"
+#include "xfs_dir2_node.h"
+#include "xfs_bit.h"
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_ISNULLDSTARTBLOCK)
+int
+isnulldstartblock(xfs_dfsbno_t x)
+{
+	return ISNULLDSTARTBLOCK(x);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_ISNULLSTARTBLOCK)
+int
+isnullstartblock(xfs_fsblock_t x)
+{
+	return ISNULLSTARTBLOCK(x);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_NULLSTARTBLOCK)
+xfs_fsblock_t
+nullstartblock(int k)
+{
+	return NULLSTARTBLOCK(k);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_STARTBLOCKVAL)
+xfs_filblks_t
+startblockval(xfs_fsblock_t x)
+{
+	return STARTBLOCKVAL(x);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_AG_CHECK_DADDR)
+void
+xfs_ag_check_daddr(xfs_mount_t *mp, xfs_daddr_t d, xfs_extlen_t len)
+{
+	XFS_AG_CHECK_DADDR(mp, d, len);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_AG_DADDR)
+xfs_daddr_t
+xfs_ag_daddr(xfs_mount_t *mp, xfs_agnumber_t agno, xfs_daddr_t d)
+{
+	return XFS_AG_DADDR(mp, agno, d);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_AG_MAXLEVELS)
+int
+xfs_ag_maxlevels(xfs_mount_t *mp)
+{
+	return XFS_AG_MAXLEVELS(mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_AGB_TO_DADDR)
+xfs_daddr_t
+xfs_agb_to_daddr(xfs_mount_t *mp, xfs_agnumber_t agno, xfs_agblock_t agbno)
+{
+	return XFS_AGB_TO_DADDR(mp, agno, agbno);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_AGB_TO_FSB)
+xfs_fsblock_t
+xfs_agb_to_fsb(xfs_mount_t *mp, xfs_agnumber_t agno, xfs_agblock_t agbno)
+{
+	return XFS_AGB_TO_FSB(mp, agno, agbno);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_AGBLOCK_MAX)
+xfs_agblock_t
+xfs_agblock_max(xfs_agblock_t a, xfs_agblock_t b)
+{
+	return XFS_AGBLOCK_MAX(a, b);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_AGBLOCK_MIN)
+xfs_agblock_t
+xfs_agblock_min(xfs_agblock_t a, xfs_agblock_t b)
+{
+	return XFS_AGBLOCK_MIN(a, b);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_AGF_BLOCK)
+xfs_agblock_t
+xfs_agf_block(xfs_mount_t *mp)
+{
+	return XFS_AGF_BLOCK(mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_AGF_GOOD_VERSION)
+int
+xfs_agf_good_version(unsigned v)
+{
+	return XFS_AGF_GOOD_VERSION(v);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_AGFL_BLOCK)
+xfs_agblock_t
+xfs_agfl_block(xfs_mount_t *mp)
+{
+	return XFS_AGFL_BLOCK(mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_AGI_BLOCK)
+xfs_agblock_t
+xfs_agi_block(xfs_mount_t *mp)
+{
+	return XFS_AGI_BLOCK(mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_AGI_GOOD_VERSION)
+int
+xfs_agi_good_version(unsigned v)
+{
+	return XFS_AGI_GOOD_VERSION(v);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_AGINO_TO_AGBNO)
+xfs_agblock_t
+xfs_agino_to_agbno(xfs_mount_t *mp, xfs_agino_t i)
+{
+	return XFS_AGINO_TO_AGBNO(mp, i);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_AGINO_TO_INO)
+xfs_ino_t
+xfs_agino_to_ino(xfs_mount_t *mp, xfs_agnumber_t a, xfs_agino_t i)
+{
+	return XFS_AGINO_TO_INO(mp, a, i);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_AGINO_TO_OFFSET)
+int
+xfs_agino_to_offset(xfs_mount_t *mp, xfs_agino_t i)
+{
+	return XFS_AGINO_TO_OFFSET(mp, i);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_ALLOC_BLOCK_MAXRECS)
+int
+xfs_alloc_block_maxrecs(int lev, xfs_btree_cur_t *cur)
+{
+	return XFS_ALLOC_BLOCK_MAXRECS(lev, cur);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_ALLOC_BLOCK_MINRECS)
+int
+xfs_alloc_block_minrecs(int lev, xfs_btree_cur_t *cur)
+{
+	return XFS_ALLOC_BLOCK_MINRECS(lev, cur);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_ALLOC_BLOCK_SIZE)
+/*ARGSUSED1*/
+int
+xfs_alloc_block_size(int lev, xfs_btree_cur_t *cur)
+{
+	return XFS_ALLOC_BLOCK_SIZE(lev, cur);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_ALLOC_KEY_ADDR)
+/*ARGSUSED3*/
+xfs_alloc_key_t *
+xfs_alloc_key_addr(xfs_alloc_block_t *bb, int i, xfs_btree_cur_t *cur)
+{
+	return XFS_ALLOC_KEY_ADDR(bb, i, cur);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_ALLOC_PTR_ADDR)
+xfs_alloc_ptr_t *
+xfs_alloc_ptr_addr(xfs_alloc_block_t *bb, int i, xfs_btree_cur_t *cur)
+{
+	return XFS_ALLOC_PTR_ADDR(bb, i, cur);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_ALLOC_REC_ADDR)
+/*ARGSUSED3*/
+xfs_alloc_rec_t *
+xfs_alloc_rec_addr(xfs_alloc_block_t *bb, int i, xfs_btree_cur_t *cur)
+{
+	return XFS_ALLOC_REC_ADDR(bb, i, cur);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_ATTR_LEAF_ENTSIZE_LOCAL)
+int
+xfs_attr_leaf_entsize_local(int nlen, int vlen)
+{
+	return XFS_ATTR_LEAF_ENTSIZE_LOCAL(nlen, vlen);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_ATTR_LEAF_ENTSIZE_LOCAL_MAX)
+int
+xfs_attr_leaf_entsize_local_max(int bsize)
+{
+	return XFS_ATTR_LEAF_ENTSIZE_LOCAL_MAX(bsize);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_ATTR_LEAF_ENTSIZE_REMOTE)
+int
+xfs_attr_leaf_entsize_remote(int nlen)
+{
+	return XFS_ATTR_LEAF_ENTSIZE_REMOTE(nlen);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_ATTR_LEAF_NAME)
+char *
+xfs_attr_leaf_name(xfs_attr_leafblock_t *leafp, int idx)
+{
+	return XFS_ATTR_LEAF_NAME(leafp, idx);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_ATTR_LEAF_NAME_LOCAL)
+xfs_attr_leaf_name_local_t *
+xfs_attr_leaf_name_local(xfs_attr_leafblock_t *leafp, int idx)
+{
+	return XFS_ATTR_LEAF_NAME_LOCAL(leafp, idx);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_ATTR_LEAF_NAME_REMOTE)
+xfs_attr_leaf_name_remote_t *
+xfs_attr_leaf_name_remote(xfs_attr_leafblock_t *leafp, int idx)
+{
+	return XFS_ATTR_LEAF_NAME_REMOTE(leafp, idx);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_ATTR_SF_ENTSIZE)
+int
+xfs_attr_sf_entsize(xfs_attr_sf_entry_t *sfep)
+{
+	return XFS_ATTR_SF_ENTSIZE(sfep);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_ATTR_SF_ENTSIZE_BYNAME)
+int
+xfs_attr_sf_entsize_byname(int nlen, int vlen)
+{
+	return XFS_ATTR_SF_ENTSIZE_BYNAME(nlen, vlen);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_ATTR_SF_NEXTENTRY)
+xfs_attr_sf_entry_t *
+xfs_attr_sf_nextentry(xfs_attr_sf_entry_t *sfep)
+{
+	return XFS_ATTR_SF_NEXTENTRY(sfep);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_ATTR_SF_TOTSIZE)
+int
+xfs_attr_sf_totsize(xfs_inode_t *dp)
+{
+	return XFS_ATTR_SF_TOTSIZE(dp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BHVTOI)
+xfs_inode_t *
+xfs_bhvtoi(bhv_desc_t *bhvp)
+{
+	return XFS_BHVTOI(bhvp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BHVTOM)
+xfs_mount_t *
+xfs_bhvtom(bhv_desc_t *bdp)
+{
+	return XFS_BHVTOM(bdp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_VFSTOM)
+xfs_mount_t *
+xfs_vfstom(vfs_t *vfs)
+{
+	return XFS_VFSTOM(vfs);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BM_MAXLEVELS)
+int
+xfs_bm_maxlevels(xfs_mount_t *mp, int w)
+{
+	return XFS_BM_MAXLEVELS(mp, w);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BMAP_BLOCK_DMAXRECS)
+int
+xfs_bmap_block_dmaxrecs(int lev, xfs_btree_cur_t *cur)
+{
+	return XFS_BMAP_BLOCK_DMAXRECS(lev, cur);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BMAP_BLOCK_DMINRECS)
+int
+xfs_bmap_block_dminrecs(int lev, xfs_btree_cur_t *cur)
+{
+	return XFS_BMAP_BLOCK_DMINRECS(lev, cur);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BMAP_BLOCK_DSIZE)
+int
+xfs_bmap_block_dsize(int lev, xfs_btree_cur_t *cur)
+{
+	return XFS_BMAP_BLOCK_DSIZE(lev, cur);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BMAP_BLOCK_IMAXRECS)
+int
+xfs_bmap_block_imaxrecs(int lev, xfs_btree_cur_t *cur)
+{
+	return XFS_BMAP_BLOCK_IMAXRECS(lev, cur);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BMAP_BLOCK_IMINRECS)
+int
+xfs_bmap_block_iminrecs(int lev, xfs_btree_cur_t *cur)
+{
+	return XFS_BMAP_BLOCK_IMINRECS(lev, cur);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BMAP_BLOCK_ISIZE)
+int
+xfs_bmap_block_isize(int lev, xfs_btree_cur_t *cur)
+{
+	return XFS_BMAP_BLOCK_ISIZE(lev, cur);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BMAP_BROOT_KEY_ADDR)
+/*ARGSUSED3*/
+xfs_bmbt_key_t *
+xfs_bmap_broot_key_addr(xfs_bmbt_block_t *bb, int i, int sz)
+{
+	return XFS_BMAP_BROOT_KEY_ADDR(bb, i, sz);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BMAP_BROOT_MAXRECS)
+int
+xfs_bmap_broot_maxrecs(int sz)
+{
+	return XFS_BMAP_BROOT_MAXRECS(sz);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BMAP_BROOT_NUMRECS)
+int
+xfs_bmap_broot_numrecs(xfs_bmdr_block_t *bb)
+{
+	return XFS_BMAP_BROOT_NUMRECS(bb);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BMAP_BROOT_PTR_ADDR)
+xfs_bmbt_ptr_t *
+xfs_bmap_broot_ptr_addr(xfs_bmbt_block_t *bb, int i, int sz)
+{
+	return XFS_BMAP_BROOT_PTR_ADDR(bb, i, sz);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BMAP_BROOT_REC_ADDR)
+/*ARGSUSED3*/
+xfs_bmbt_rec_t *
+xfs_bmap_broot_rec_addr(xfs_bmbt_block_t *bb, int i, int sz)
+{
+	return XFS_BMAP_BROOT_REC_ADDR(bb, i, sz);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BMAP_BROOT_SPACE)
+int
+xfs_bmap_broot_space(xfs_bmdr_block_t *bb)
+{
+	return XFS_BMAP_BROOT_SPACE(bb);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BMAP_BROOT_SPACE_CALC)
+int
+xfs_bmap_broot_space_calc(int nrecs)
+{
+	return XFS_BMAP_BROOT_SPACE_CALC(nrecs);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BMAP_IBLOCK_SIZE)
+/*ARGSUSED1*/
+int
+xfs_bmap_iblock_size(int lev, xfs_btree_cur_t *cur)
+{
+	return XFS_BMAP_IBLOCK_SIZE(lev, cur);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BMAP_INIT)
+void
+xfs_bmap_init(xfs_bmap_free_t *flp, xfs_fsblock_t *fbp)
+{
+	XFS_BMAP_INIT(flp, fbp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BMAP_KEY_DADDR)
+/*ARGSUSED3*/
+xfs_bmbt_key_t *
+xfs_bmap_key_daddr(xfs_bmbt_block_t *bb, int i, xfs_btree_cur_t *cur)
+{
+	return XFS_BMAP_KEY_DADDR(bb, i, cur);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BMAP_KEY_IADDR)
+/*ARGSUSED3*/
+xfs_bmbt_key_t *
+xfs_bmap_key_iaddr(xfs_bmbt_block_t *bb, int i, xfs_btree_cur_t *cur)
+{
+	return XFS_BMAP_KEY_IADDR(bb, i, cur);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BMAP_PTR_DADDR)
+xfs_bmbt_ptr_t *
+xfs_bmap_ptr_daddr(xfs_bmbt_block_t *bb, int i, xfs_btree_cur_t *cur)
+{
+	return XFS_BMAP_PTR_DADDR(bb, i, cur);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BMAP_PTR_IADDR)
+xfs_bmbt_ptr_t *
+xfs_bmap_ptr_iaddr(xfs_bmbt_block_t *bb, int i, xfs_btree_cur_t *cur)
+{
+	return XFS_BMAP_PTR_IADDR(bb, i, cur);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BMAP_RBLOCK_DSIZE)
+/*ARGSUSED1*/
+int
+xfs_bmap_rblock_dsize(int lev, xfs_btree_cur_t *cur)
+{
+	return XFS_BMAP_RBLOCK_DSIZE(lev, cur);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BMAP_RBLOCK_ISIZE)
+/*ARGSUSED1*/
+int
+xfs_bmap_rblock_isize(int lev, xfs_btree_cur_t *cur)
+{
+	return XFS_BMAP_RBLOCK_ISIZE(lev, cur);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BMAP_REC_DADDR)
+/*ARGSUSED3*/
+xfs_bmbt_rec_t *
+xfs_bmap_rec_daddr(xfs_bmbt_block_t *bb, int i, xfs_btree_cur_t *cur)
+{
+	return XFS_BMAP_REC_DADDR(bb, i, cur);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BMAP_REC_IADDR)
+/*ARGSUSED3*/
+xfs_bmbt_rec_t *
+xfs_bmap_rec_iaddr(xfs_bmbt_block_t *bb, int i, xfs_btree_cur_t *cur)
+{
+	return XFS_BMAP_REC_IADDR(bb, i, cur);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BMAP_SANITY_CHECK)
+int
+xfs_bmap_sanity_check(xfs_mount_t *mp, xfs_bmbt_block_t *bb, int level)
+{
+	return XFS_BMAP_SANITY_CHECK(mp, bb, level);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BMAPI_AFLAG)
+int
+xfs_bmapi_aflag(int w)
+{
+	return XFS_BMAPI_AFLAG(w);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BMDR_SPACE_CALC)
+int
+xfs_bmdr_space_calc(int nrecs)
+{
+	return XFS_BMDR_SPACE_CALC(nrecs);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BNO_BLOCK)
+xfs_agblock_t
+xfs_bno_block(xfs_mount_t *mp)
+{
+	return XFS_BNO_BLOCK(mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BTREE_LONG_PTRS)
+int
+xfs_btree_long_ptrs(xfs_btnum_t btnum)
+{
+	return XFS_BTREE_LONG_PTRS(btnum);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BUF_TO_AGF)
+xfs_agf_t *
+xfs_buf_to_agf(xfs_buf_t *bp)
+{
+	return XFS_BUF_TO_AGF(bp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BUF_TO_AGFL)
+xfs_agfl_t *
+xfs_buf_to_agfl(xfs_buf_t *bp)
+{
+	return XFS_BUF_TO_AGFL(bp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BUF_TO_AGI)
+xfs_agi_t *
+xfs_buf_to_agi(xfs_buf_t *bp)
+{
+	return XFS_BUF_TO_AGI(bp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BUF_TO_ALLOC_BLOCK)
+xfs_alloc_block_t *
+xfs_buf_to_alloc_block(xfs_buf_t *bp)
+{
+	return XFS_BUF_TO_ALLOC_BLOCK(bp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BUF_TO_BLOCK)
+xfs_btree_block_t *
+xfs_buf_to_block(xfs_buf_t *bp)
+{
+	return XFS_BUF_TO_BLOCK(bp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BUF_TO_BMBT_BLOCK)
+xfs_bmbt_block_t *
+xfs_buf_to_bmbt_block(xfs_buf_t *bp)
+{
+	return XFS_BUF_TO_BMBT_BLOCK(bp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BUF_TO_DINODE)
+xfs_dinode_t *
+xfs_buf_to_dinode(xfs_buf_t *bp)
+{
+	return XFS_BUF_TO_DINODE(bp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BUF_TO_INOBT_BLOCK)
+xfs_inobt_block_t *
+xfs_buf_to_inobt_block(xfs_buf_t *bp)
+{
+	return XFS_BUF_TO_INOBT_BLOCK(bp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BUF_TO_LBLOCK)
+xfs_btree_lblock_t *
+xfs_buf_to_lblock(xfs_buf_t *bp)
+{
+	return XFS_BUF_TO_LBLOCK(bp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BUF_TO_SBLOCK)
+xfs_btree_sblock_t *
+xfs_buf_to_sblock(xfs_buf_t *bp)
+{
+	return XFS_BUF_TO_SBLOCK(bp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_BUF_TO_SBP)
+xfs_sb_t *
+xfs_buf_to_sbp(xfs_buf_t *bp)
+{
+	return XFS_BUF_TO_SBP(bp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_CFORK_ASIZE)
+int
+xfs_cfork_asize_arch(xfs_dinode_core_t *dcp, xfs_mount_t *mp, xfs_arch_t arch)
+{
+	return XFS_CFORK_ASIZE_ARCH(dcp, mp, arch);
+}
+int
+xfs_cfork_asize(xfs_dinode_core_t *dcp, xfs_mount_t *mp)
+{
+	return XFS_CFORK_ASIZE(dcp, mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_CFORK_BOFF)
+int
+xfs_cfork_boff_arch(xfs_dinode_core_t *dcp, xfs_arch_t arch)
+{
+	return XFS_CFORK_BOFF_ARCH(dcp, arch);
+}
+int
+xfs_cfork_boff(xfs_dinode_core_t *dcp)
+{
+	return XFS_CFORK_BOFF(dcp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_CFORK_DSIZE)
+int
+xfs_cfork_dsize_arch(xfs_dinode_core_t *dcp, xfs_mount_t *mp, xfs_arch_t arch)
+{
+	return XFS_CFORK_DSIZE_ARCH(dcp, mp, arch);
+}
+int
+xfs_cfork_dsize(xfs_dinode_core_t *dcp, xfs_mount_t *mp)
+{
+	return XFS_CFORK_DSIZE(dcp, mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_CFORK_FMT_SET)
+void
+xfs_cfork_fmt_set_arch(xfs_dinode_core_t *dcp, int w, int n, xfs_arch_t arch)
+{
+	XFS_CFORK_FMT_SET_ARCH(dcp, w, n, arch);
+}
+void
+xfs_cfork_fmt_set(xfs_dinode_core_t *dcp, int w, int n)
+{
+	XFS_CFORK_FMT_SET(dcp, w, n);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_CFORK_FORMAT)
+int
+xfs_cfork_format_arch(xfs_dinode_core_t *dcp, int w, xfs_arch_t arch)
+{
+	return XFS_CFORK_FORMAT_ARCH(dcp, w, arch);
+}
+int
+xfs_cfork_format(xfs_dinode_core_t *dcp, int w)
+{
+	return XFS_CFORK_FORMAT(dcp, w);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_CFORK_NEXT_SET)
+void
+xfs_cfork_next_set_arch(xfs_dinode_core_t *dcp, int w, int n, xfs_arch_t arch)
+{
+	XFS_CFORK_NEXT_SET_ARCH(dcp, w, n, arch);
+}
+void
+xfs_cfork_next_set(xfs_dinode_core_t *dcp, int w, int n)
+{
+	XFS_CFORK_NEXT_SET(dcp, w, n);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_CFORK_NEXTENTS)
+int
+xfs_cfork_nextents_arch(xfs_dinode_core_t *dcp, int w, xfs_arch_t arch)
+{
+	return XFS_CFORK_NEXTENTS_ARCH(dcp, w, arch);
+}
+int
+xfs_cfork_nextents(xfs_dinode_core_t *dcp, int w)
+{
+	return XFS_CFORK_NEXTENTS(dcp, w);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_CFORK_Q)
+int
+xfs_cfork_q_arch(xfs_dinode_core_t *dcp, xfs_arch_t arch)
+{
+	return XFS_CFORK_Q_ARCH(dcp, arch);
+}
+int
+xfs_cfork_q(xfs_dinode_core_t *dcp)
+{
+	return XFS_CFORK_Q(dcp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_CFORK_SIZE)
+int
+xfs_cfork_size_arch(xfs_dinode_core_t *dcp, xfs_mount_t *mp, int w, xfs_arch_t arch)
+{
+	return XFS_CFORK_SIZE_ARCH(dcp, mp, w, arch);
+}
+int
+xfs_cfork_size(xfs_dinode_core_t *dcp, xfs_mount_t *mp, int w)
+{
+	return XFS_CFORK_SIZE(dcp, mp, w);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_CNT_BLOCK)
+xfs_agblock_t
+xfs_cnt_block(xfs_mount_t *mp)
+{
+	return XFS_CNT_BLOCK(mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DA_COOKIE_BNO)
+xfs_dablk_t
+xfs_da_cookie_bno(xfs_mount_t *mp, xfs_off_t cookie)
+{
+	return XFS_DA_COOKIE_BNO(mp, cookie);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DA_COOKIE_ENTRY)
+int
+xfs_da_cookie_entry(xfs_mount_t *mp, xfs_off_t cookie)
+{
+	return XFS_DA_COOKIE_ENTRY(mp, cookie);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DA_COOKIE_HASH)
+/*ARGSUSED1*/
+xfs_dahash_t
+xfs_da_cookie_hash(xfs_mount_t *mp, xfs_off_t cookie)
+{
+	return XFS_DA_COOKIE_HASH(mp, cookie);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DA_MAKE_BNOENTRY)
+__uint32_t
+xfs_da_make_bnoentry(xfs_mount_t *mp, xfs_dablk_t bno, int entry)
+{
+	return XFS_DA_MAKE_BNOENTRY(mp, bno, entry);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DA_MAKE_COOKIE)
+xfs_off_t
+xfs_da_make_cookie(xfs_mount_t *mp, xfs_dablk_t bno, int entry,
+		   xfs_dahash_t hash)
+{
+	return XFS_DA_MAKE_COOKIE(mp, bno, entry, hash);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DADDR_TO_AGBNO)
+xfs_agblock_t
+xfs_daddr_to_agbno(xfs_mount_t *mp, xfs_daddr_t d)
+{
+	return XFS_DADDR_TO_AGBNO(mp, d);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DADDR_TO_AGNO)
+xfs_agnumber_t
+xfs_daddr_to_agno(xfs_mount_t *mp, xfs_daddr_t d)
+{
+	return XFS_DADDR_TO_AGNO(mp, d);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DADDR_TO_FSB)
+xfs_fsblock_t
+xfs_daddr_to_fsb(xfs_mount_t *mp, xfs_daddr_t d)
+{
+	return XFS_DADDR_TO_FSB(mp, d);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DFORK_APTR)
+char *
+xfs_dfork_aptr_arch(xfs_dinode_t *dip, xfs_arch_t arch)
+{
+	return XFS_DFORK_APTR_ARCH(dip, arch);
+}
+char *
+xfs_dfork_aptr(xfs_dinode_t *dip)
+{
+	return XFS_DFORK_APTR(dip);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DFORK_ASIZE)
+int
+xfs_dfork_asize_arch(xfs_dinode_t *dip, xfs_mount_t *mp, xfs_arch_t arch)
+{
+	return XFS_DFORK_ASIZE_ARCH(dip, mp, arch);
+}
+int
+xfs_dfork_asize(xfs_dinode_t *dip, xfs_mount_t *mp)
+{
+	return XFS_DFORK_ASIZE(dip, mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DFORK_BOFF)
+int
+xfs_dfork_boff_arch(xfs_dinode_t *dip, xfs_arch_t arch)
+{
+	return XFS_DFORK_BOFF_ARCH(dip, arch);
+}
+int
+xfs_dfork_boff(xfs_dinode_t *dip)
+{
+	return XFS_DFORK_BOFF(dip);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DFORK_DPTR)
+char *
+xfs_dfork_dptr_arch(xfs_dinode_t *dip, xfs_arch_t arch)
+{
+	return XFS_DFORK_DPTR_ARCH(dip, arch);
+}
+char *
+xfs_dfork_dptr(xfs_dinode_t *dip)
+{
+	return XFS_DFORK_DPTR(dip);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DFORK_DSIZE)
+int
+xfs_dfork_dsize_arch(xfs_dinode_t *dip, xfs_mount_t *mp, xfs_arch_t arch)
+{
+	return XFS_DFORK_DSIZE_ARCH(dip, mp, arch);
+}
+int
+xfs_dfork_dsize(xfs_dinode_t *dip, xfs_mount_t *mp)
+{
+	return XFS_DFORK_DSIZE(dip, mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DFORK_FMT_SET)
+void
+xfs_dfork_fmt_set_arch(xfs_dinode_t *dip, int w, int n, xfs_arch_t arch)
+{
+	XFS_DFORK_FMT_SET_ARCH(dip, w, n, arch);
+}
+void
+xfs_dfork_fmt_set(xfs_dinode_t *dip, int w, int n)
+{
+	XFS_DFORK_FMT_SET(dip, w, n);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DFORK_FORMAT)
+int
+xfs_dfork_format_arch(xfs_dinode_t *dip, int w, xfs_arch_t arch)
+{
+	return XFS_DFORK_FORMAT_ARCH(dip, w, arch);
+}
+int
+xfs_dfork_format(xfs_dinode_t *dip, int w)
+{
+	return XFS_DFORK_FORMAT(dip, w);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DFORK_NEXT_SET)
+void
+xfs_dfork_next_set_arch(xfs_dinode_t *dip, int w, int n, xfs_arch_t arch)
+{
+	XFS_DFORK_NEXT_SET_ARCH(dip, w, n, arch);
+}
+void
+xfs_dfork_next_set(xfs_dinode_t *dip, int w, int n)
+{
+	XFS_DFORK_NEXT_SET(dip, w, n);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DFORK_NEXTENTS)
+int
+xfs_dfork_nextents_arch(xfs_dinode_t *dip, int w, xfs_arch_t arch)
+{
+	return XFS_DFORK_NEXTENTS_ARCH(dip, w, arch);
+}
+int
+xfs_dfork_nextents(xfs_dinode_t *dip, int w)
+{
+	return XFS_DFORK_NEXTENTS(dip, w);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DFORK_PTR)
+char *
+xfs_dfork_ptr_arch(xfs_dinode_t *dip, int w, xfs_arch_t arch)
+{
+	return XFS_DFORK_PTR_ARCH(dip, w, arch);
+}
+char *
+xfs_dfork_ptr(xfs_dinode_t *dip, int w)
+{
+	return XFS_DFORK_PTR(dip, w);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DFORK_Q)
+int
+xfs_dfork_q_arch(xfs_dinode_t *dip, xfs_arch_t arch)
+{
+	return XFS_DFORK_Q_ARCH(dip, arch);
+}
+int
+xfs_dfork_q(xfs_dinode_t *dip)
+{
+	return XFS_DFORK_Q(dip);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DFORK_SIZE)
+int
+xfs_dfork_size_arch(xfs_dinode_t *dip, xfs_mount_t *mp, int w, xfs_arch_t arch)
+{
+	return XFS_DFORK_SIZE_ARCH(dip, mp, w, arch);
+}
+int
+xfs_dfork_size(xfs_dinode_t *dip, xfs_mount_t *mp, int w)
+{
+	return XFS_DFORK_SIZE(dip, mp, w);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DINODE_GOOD_VERSION)
+int
+xfs_dinode_good_version(int v)
+{
+	return XFS_DINODE_GOOD_VERSION(v);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR_LEAF_ENTSIZE_BYENTRY)
+int
+xfs_dir_leaf_entsize_byentry(xfs_dir_leaf_entry_t *entry)
+{
+	return XFS_DIR_LEAF_ENTSIZE_BYENTRY(entry);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR_LEAF_ENTSIZE_BYNAME)
+int
+xfs_dir_leaf_entsize_byname(int len)
+{
+	return XFS_DIR_LEAF_ENTSIZE_BYNAME(len);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR_LEAF_NAMESTRUCT)
+xfs_dir_leaf_name_t *
+xfs_dir_leaf_namestruct(xfs_dir_leafblock_t *leafp, int offset)
+{
+	return XFS_DIR_LEAF_NAMESTRUCT(leafp, offset);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR_SF_ALLFIT)
+int
+xfs_dir_sf_allfit(int count, int totallen)
+{
+	return XFS_DIR_SF_ALLFIT(count, totallen);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR_SF_ENTSIZE_BYENTRY)
+int
+xfs_dir_sf_entsize_byentry(xfs_dir_sf_entry_t *sfep)
+{
+	return XFS_DIR_SF_ENTSIZE_BYENTRY(sfep);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR_SF_ENTSIZE_BYNAME)
+int
+xfs_dir_sf_entsize_byname(int len)
+{
+	return XFS_DIR_SF_ENTSIZE_BYNAME(len);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR_SF_GET_DIRINO)
+void
+xfs_dir_sf_get_dirino_arch(xfs_dir_ino_t *from, xfs_ino_t *to, xfs_arch_t arch)
+{
+	XFS_DIR_SF_GET_DIRINO_ARCH(from, to, arch);
+}
+void
+xfs_dir_sf_get_dirino(xfs_dir_ino_t *from, xfs_ino_t *to)
+{
+	XFS_DIR_SF_GET_DIRINO(from, to);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR_SF_NEXTENTRY)
+xfs_dir_sf_entry_t *
+xfs_dir_sf_nextentry(xfs_dir_sf_entry_t *sfep)
+{
+	return XFS_DIR_SF_NEXTENTRY(sfep);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR_SF_PUT_DIRINO)
+void
+xfs_dir_sf_put_dirino_arch(xfs_ino_t *from, xfs_dir_ino_t *to, xfs_arch_t arch)
+{
+	XFS_DIR_SF_PUT_DIRINO_ARCH(from, to, arch);
+}
+void
+xfs_dir_sf_put_dirino(xfs_ino_t *from, xfs_dir_ino_t *to)
+{
+	XFS_DIR_SF_PUT_DIRINO(from, to);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_BLOCK_LEAF_P)
+xfs_dir2_leaf_entry_t *
+xfs_dir2_block_leaf_p_arch(xfs_dir2_block_tail_t *btp, xfs_arch_t arch)
+{
+	return XFS_DIR2_BLOCK_LEAF_P_ARCH(btp,arch);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_BLOCK_TAIL_P)
+xfs_dir2_block_tail_t *
+xfs_dir2_block_tail_p(xfs_mount_t *mp, xfs_dir2_block_t *block)
+{
+	return XFS_DIR2_BLOCK_TAIL_P(mp, block);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_BYTE_TO_DA)
+xfs_dablk_t
+xfs_dir2_byte_to_da(xfs_mount_t *mp, xfs_dir2_off_t by)
+{
+	return XFS_DIR2_BYTE_TO_DA(mp, by);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_BYTE_TO_DATAPTR)
+/* ARGSUSED */
+xfs_dir2_dataptr_t
+xfs_dir2_byte_to_dataptr(xfs_mount_t *mp, xfs_dir2_off_t by)
+{
+	return XFS_DIR2_BYTE_TO_DATAPTR(mp, by);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_BYTE_TO_DB)
+xfs_dir2_db_t
+xfs_dir2_byte_to_db(xfs_mount_t *mp, xfs_dir2_off_t by)
+{
+	return XFS_DIR2_BYTE_TO_DB(mp, by);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_BYTE_TO_OFF)
+xfs_dir2_data_aoff_t
+xfs_dir2_byte_to_off(xfs_mount_t *mp, xfs_dir2_off_t by)
+{
+	return XFS_DIR2_BYTE_TO_OFF(mp, by);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_DA_TO_BYTE)
+xfs_dir2_off_t
+xfs_dir2_da_to_byte(xfs_mount_t *mp, xfs_dablk_t da)
+{
+	return XFS_DIR2_DA_TO_BYTE(mp, da);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_DA_TO_DB)
+xfs_dir2_db_t
+xfs_dir2_da_to_db(xfs_mount_t *mp, xfs_dablk_t da)
+{
+	return XFS_DIR2_DA_TO_DB(mp, da);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_DATA_ENTRY_TAG_P)
+xfs_dir2_data_off_t *
+xfs_dir2_data_entry_tag_p(xfs_dir2_data_entry_t *dep)
+{
+	return XFS_DIR2_DATA_ENTRY_TAG_P(dep);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_DATA_ENTSIZE)
+int
+xfs_dir2_data_entsize(int n)
+{
+	return XFS_DIR2_DATA_ENTSIZE(n);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_DATA_UNUSED_TAG_P)
+xfs_dir2_data_off_t *
+xfs_dir2_data_unused_tag_p_arch(xfs_dir2_data_unused_t *dup, xfs_arch_t arch)
+{
+	return XFS_DIR2_DATA_UNUSED_TAG_P_ARCH(dup,arch);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_DATAPTR_TO_BYTE)
+/* ARGSUSED */
+xfs_dir2_off_t
+xfs_dir2_dataptr_to_byte(xfs_mount_t *mp, xfs_dir2_dataptr_t dp)
+{
+	return XFS_DIR2_DATAPTR_TO_BYTE(mp, dp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_DATAPTR_TO_DB)
+xfs_dir2_db_t
+xfs_dir2_dataptr_to_db(xfs_mount_t *mp, xfs_dir2_dataptr_t dp)
+{
+	return XFS_DIR2_DATAPTR_TO_DB(mp, dp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_DATAPTR_TO_OFF)
+xfs_dir2_data_aoff_t
+xfs_dir2_dataptr_to_off(xfs_mount_t *mp, xfs_dir2_dataptr_t dp)
+{
+	return XFS_DIR2_DATAPTR_TO_OFF(mp, dp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_DB_OFF_TO_BYTE)
+xfs_dir2_off_t
+xfs_dir2_db_off_to_byte(xfs_mount_t *mp, xfs_dir2_db_t db,
+			xfs_dir2_data_aoff_t o)
+{
+	return XFS_DIR2_DB_OFF_TO_BYTE(mp, db, o);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_DB_OFF_TO_DATAPTR)
+xfs_dir2_dataptr_t
+xfs_dir2_db_off_to_dataptr(xfs_mount_t *mp, xfs_dir2_db_t db,
+			   xfs_dir2_data_aoff_t o)
+{
+	return XFS_DIR2_DB_OFF_TO_DATAPTR(mp, db, o);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_DB_TO_DA)
+xfs_dablk_t
+xfs_dir2_db_to_da(xfs_mount_t *mp, xfs_dir2_db_t db)
+{
+	return XFS_DIR2_DB_TO_DA(mp, db);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_DB_TO_FDB)
+xfs_dir2_db_t
+xfs_dir2_db_to_fdb(xfs_mount_t *mp, xfs_dir2_db_t db)
+{
+	return XFS_DIR2_DB_TO_FDB(mp, db);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_DB_TO_FDINDEX)
+int
+xfs_dir2_db_to_fdindex(xfs_mount_t *mp, xfs_dir2_db_t db)
+{
+	return XFS_DIR2_DB_TO_FDINDEX(mp, db);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_LEAF_BESTS_P)
+xfs_dir2_data_off_t *
+xfs_dir2_leaf_bests_p_arch(xfs_dir2_leaf_tail_t *ltp, xfs_arch_t arch)
+{
+	return XFS_DIR2_LEAF_BESTS_P_ARCH(ltp, arch);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_LEAF_TAIL_P)
+xfs_dir2_leaf_tail_t *
+xfs_dir2_leaf_tail_p(xfs_mount_t *mp, xfs_dir2_leaf_t *lp)
+{
+	return XFS_DIR2_LEAF_TAIL_P(mp, lp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_MAX_LEAF_ENTS)
+int
+xfs_dir2_max_leaf_ents(xfs_mount_t *mp)
+{
+	return XFS_DIR2_MAX_LEAF_ENTS(mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_SF_ENTSIZE_BYENTRY)
+int
+xfs_dir2_sf_entsize_byentry(xfs_dir2_sf_t *sfp, xfs_dir2_sf_entry_t *sfep)
+{
+	return XFS_DIR2_SF_ENTSIZE_BYENTRY(sfp, sfep);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_SF_FIRSTENTRY)
+xfs_dir2_sf_entry_t *
+xfs_dir2_sf_firstentry(xfs_dir2_sf_t *sfp)
+{
+	return XFS_DIR2_SF_FIRSTENTRY(sfp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_SF_ENTSIZE_BYNAME)
+int
+xfs_dir2_sf_entsize_byname(xfs_dir2_sf_t *sfp, int len)
+{
+	return XFS_DIR2_SF_ENTSIZE_BYNAME(sfp, len);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_SF_GET_INUMBER)
+xfs_intino_t
+xfs_dir2_sf_get_inumber_arch(xfs_dir2_sf_t *sfp, xfs_dir2_inou_t *from, xfs_arch_t arch)
+{
+	return XFS_DIR2_SF_GET_INUMBER_ARCH(sfp, from, arch);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_SF_GET_OFFSET)
+xfs_dir2_data_aoff_t
+xfs_dir2_sf_get_offset_arch(xfs_dir2_sf_entry_t *sfep, xfs_arch_t arch)
+{
+	return XFS_DIR2_SF_GET_OFFSET_ARCH(sfep, arch);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_SF_HDR_SIZE)
+int
+xfs_dir2_sf_hdr_size(int i8count)
+{
+	return XFS_DIR2_SF_HDR_SIZE(i8count);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_SF_INUMBERP)
+xfs_dir2_inou_t *
+xfs_dir2_sf_inumberp(xfs_dir2_sf_entry_t *sfep)
+{
+	return XFS_DIR2_SF_INUMBERP(sfep);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_SF_NEXTENTRY)
+xfs_dir2_sf_entry_t *
+xfs_dir2_sf_nextentry(xfs_dir2_sf_t *sfp, xfs_dir2_sf_entry_t *sfep)
+{
+	return XFS_DIR2_SF_NEXTENTRY(sfp, sfep);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_SF_PUT_INUMBER)
+void
+xfs_dir2_sf_put_inumber_arch(xfs_dir2_sf_t *sfp, xfs_ino_t *from, xfs_dir2_inou_t *to, xfs_arch_t arch)
+{
+	XFS_DIR2_SF_PUT_INUMBER_ARCH(sfp, from, to, arch);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_DIR2_SF_PUT_OFFSET)
+void
+xfs_dir2_sf_put_offset_arch(xfs_dir2_sf_entry_t *sfep, xfs_dir2_data_aoff_t off, xfs_arch_t arch)
+{
+	XFS_DIR2_SF_PUT_OFFSET_ARCH(sfep, off, arch);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_EXTFMT_INODE )
+xfs_exntfmt_t
+xfs_extfmt_inode(struct xfs_inode *ip)
+{
+	return XFS_EXTFMT_INODE(ip);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_EXTLEN_MAX)
+xfs_extlen_t
+xfs_extlen_max(xfs_extlen_t a, xfs_extlen_t b)
+{
+	return XFS_EXTLEN_MAX(a, b);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_EXTLEN_MIN)
+xfs_extlen_t
+xfs_extlen_min(xfs_extlen_t a, xfs_extlen_t b)
+{
+	return XFS_EXTLEN_MIN(a, b);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_FILBLKS_MAX)
+xfs_filblks_t
+xfs_filblks_max(xfs_filblks_t a, xfs_filblks_t b)
+{
+	return XFS_FILBLKS_MAX(a, b);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_FILBLKS_MIN)
+xfs_filblks_t
+xfs_filblks_min(xfs_filblks_t a, xfs_filblks_t b)
+{
+	return XFS_FILBLKS_MIN(a, b);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_FILEOFF_MAX)
+xfs_fileoff_t
+xfs_fileoff_max(xfs_fileoff_t a, xfs_fileoff_t b)
+{
+	return XFS_FILEOFF_MAX(a, b);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_FILEOFF_MIN)
+xfs_fileoff_t
+xfs_fileoff_min(xfs_fileoff_t a, xfs_fileoff_t b)
+{
+	return XFS_FILEOFF_MIN(a, b);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_FSB_SANITY_CHECK)
+int
+xfs_fsb_sanity_check(xfs_mount_t *mp, xfs_fsblock_t fsbno)
+{
+	return XFS_FSB_SANITY_CHECK(mp, fsbno);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_FSB_TO_AGBNO)
+xfs_agblock_t
+xfs_fsb_to_agbno(xfs_mount_t *mp, xfs_fsblock_t fsbno)
+{
+	return XFS_FSB_TO_AGBNO(mp, fsbno);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_FSB_TO_AGNO)
+xfs_agnumber_t
+xfs_fsb_to_agno(xfs_mount_t *mp, xfs_fsblock_t fsbno)
+{
+	return XFS_FSB_TO_AGNO(mp, fsbno);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_FSB_TO_DADDR)
+xfs_daddr_t
+xfs_fsb_to_daddr(xfs_mount_t *mp, xfs_fsblock_t fsbno)
+{
+	return XFS_FSB_TO_DADDR(mp, fsbno);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_FSB_TO_DB)
+xfs_daddr_t
+xfs_fsb_to_db(xfs_inode_t *ip, xfs_fsblock_t fsb)
+{
+	return XFS_FSB_TO_DB(ip, fsb);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_HDR_BLOCK)
+xfs_agblock_t
+xfs_hdr_block(xfs_mount_t *mp, xfs_daddr_t d)
+{
+	return XFS_HDR_BLOCK(mp, d);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_IALLOC_BLOCKS)
+xfs_extlen_t
+xfs_ialloc_blocks(xfs_mount_t *mp)
+{
+	return XFS_IALLOC_BLOCKS(mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_IALLOC_FIND_FREE)
+int
+xfs_ialloc_find_free(xfs_inofree_t *fp)
+{
+	return XFS_IALLOC_FIND_FREE(fp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_IALLOC_INODES)
+int
+xfs_ialloc_inodes(xfs_mount_t *mp)
+{
+	return XFS_IALLOC_INODES(mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_IBT_BLOCK)
+xfs_agblock_t
+xfs_ibt_block(xfs_mount_t *mp)
+{
+	return XFS_IBT_BLOCK(mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_IFORK_ASIZE)
+int
+xfs_ifork_asize(xfs_inode_t *ip)
+{
+	return XFS_IFORK_ASIZE(ip);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_IFORK_DSIZE)
+int
+xfs_ifork_dsize(xfs_inode_t *ip)
+{
+	return XFS_IFORK_DSIZE(ip);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_IFORK_FMT_SET)
+void
+xfs_ifork_fmt_set(xfs_inode_t *ip, int w, int n)
+{
+	XFS_IFORK_FMT_SET(ip, w, n);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_IFORK_FORMAT)
+int
+xfs_ifork_format(xfs_inode_t *ip, int w)
+{
+	return XFS_IFORK_FORMAT(ip, w);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_IFORK_NEXT_SET)
+void
+xfs_ifork_next_set(xfs_inode_t *ip, int w, int n)
+{
+	XFS_IFORK_NEXT_SET(ip, w, n);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_IFORK_NEXTENTS)
+int
+xfs_ifork_nextents(xfs_inode_t *ip, int w)
+{
+	return XFS_IFORK_NEXTENTS(ip, w);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_IFORK_PTR)
+xfs_ifork_t *
+xfs_ifork_ptr(xfs_inode_t *ip, int w)
+{
+	return XFS_IFORK_PTR(ip, w);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_IFORK_Q)
+int
+xfs_ifork_q(xfs_inode_t *ip)
+{
+	return XFS_IFORK_Q(ip);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_IFORK_SIZE)
+int
+xfs_ifork_size(xfs_inode_t *ip, int w)
+{
+	return XFS_IFORK_SIZE(ip, w);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_ILOG_FBROOT)
+int
+xfs_ilog_fbroot(int w)
+{
+	return XFS_ILOG_FBROOT(w);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_ILOG_FDATA)
+int
+xfs_ilog_fdata(int w)
+{
+	return XFS_ILOG_FDATA(w);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_ILOG_FEXT)
+int
+xfs_ilog_fext(int w)
+{
+	return XFS_ILOG_FEXT(w);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_IN_MAXLEVELS)
+int
+xfs_in_maxlevels(xfs_mount_t *mp)
+{
+	return XFS_IN_MAXLEVELS(mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_INO_AGBNO_BITS)
+int
+xfs_ino_agbno_bits(xfs_mount_t *mp)
+{
+	return XFS_INO_AGBNO_BITS(mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_INO_AGINO_BITS)
+int
+xfs_ino_agino_bits(xfs_mount_t *mp)
+{
+	return XFS_INO_AGINO_BITS(mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_INO_AGNO_BITS)
+int
+xfs_ino_agno_bits(xfs_mount_t *mp)
+{
+	return XFS_INO_AGNO_BITS(mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_INO_BITS)
+int
+xfs_ino_bits(xfs_mount_t *mp)
+{
+	return XFS_INO_BITS(mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_INO_MASK)
+__uint32_t
+xfs_ino_mask(int k)
+{
+	return XFS_INO_MASK(k);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_INO_OFFSET_BITS)
+int
+xfs_ino_offset_bits(xfs_mount_t *mp)
+{
+	return XFS_INO_OFFSET_BITS(mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_INO_TO_AGBNO)
+xfs_agblock_t
+xfs_ino_to_agbno(xfs_mount_t *mp, xfs_ino_t i)
+{
+	return XFS_INO_TO_AGBNO(mp, i);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_INO_TO_AGINO)
+xfs_agino_t
+xfs_ino_to_agino(xfs_mount_t *mp, xfs_ino_t i)
+{
+	return XFS_INO_TO_AGINO(mp, i);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_INO_TO_AGNO)
+xfs_agnumber_t
+xfs_ino_to_agno(xfs_mount_t *mp, xfs_ino_t i)
+{
+	return XFS_INO_TO_AGNO(mp, i);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_INO_TO_FSB)
+xfs_fsblock_t
+xfs_ino_to_fsb(xfs_mount_t *mp, xfs_ino_t i)
+{
+	return XFS_INO_TO_FSB(mp, i);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_INO_TO_OFFSET)
+int
+xfs_ino_to_offset(xfs_mount_t *mp, xfs_ino_t i)
+{
+	return XFS_INO_TO_OFFSET(mp, i);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_INOBT_BLOCK_MAXRECS)
+int
+xfs_inobt_block_maxrecs(int lev, xfs_btree_cur_t *cur)
+{
+	return XFS_INOBT_BLOCK_MAXRECS(lev, cur);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_INOBT_BLOCK_MINRECS)
+int
+xfs_inobt_block_minrecs(int lev, xfs_btree_cur_t *cur)
+{
+	return XFS_INOBT_BLOCK_MINRECS(lev, cur);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_INOBT_BLOCK_SIZE)
+/*ARGSUSED1*/
+int
+xfs_inobt_block_size(int lev, xfs_btree_cur_t *cur)
+{
+	return XFS_INOBT_BLOCK_SIZE(lev, cur);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_INOBT_CLR_FREE)
+void
+xfs_inobt_clr_free(xfs_inobt_rec_t *rp, int i, xfs_arch_t arch)
+{
+	XFS_INOBT_CLR_FREE(rp, i, arch);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_INOBT_IS_FREE)
+int
+xfs_inobt_is_free(xfs_inobt_rec_t *rp, int i, xfs_arch_t arch)
+{
+	return XFS_INOBT_IS_FREE(rp, i, arch);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_INOBT_IS_LAST_REC)
+int
+xfs_inobt_is_last_rec(xfs_btree_cur_t *cur)
+{
+	return XFS_INOBT_IS_LAST_REC(cur);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_INOBT_KEY_ADDR)
+/*ARGSUSED3*/
+xfs_inobt_key_t *
+xfs_inobt_key_addr(xfs_inobt_block_t *bb, int i, xfs_btree_cur_t *cur)
+{
+	return XFS_INOBT_KEY_ADDR(bb, i, cur);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_INOBT_MASK)
+xfs_inofree_t
+xfs_inobt_mask(int i)
+{
+	return XFS_INOBT_MASK(i);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_INOBT_MASKN)
+xfs_inofree_t
+xfs_inobt_maskn(int i, int n)
+{
+	return XFS_INOBT_MASKN(i, n);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_INOBT_PTR_ADDR)
+xfs_inobt_ptr_t *
+xfs_inobt_ptr_addr(xfs_inobt_block_t *bb, int i, xfs_btree_cur_t *cur)
+{
+	return XFS_INOBT_PTR_ADDR(bb, i, cur);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_INOBT_REC_ADDR)
+/*ARGSUSED3*/
+xfs_inobt_rec_t *
+xfs_inobt_rec_addr(xfs_inobt_block_t *bb, int i, xfs_btree_cur_t *cur)
+{
+	return XFS_INOBT_REC_ADDR(bb, i, cur);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_INOBT_SET_FREE)
+void
+xfs_inobt_set_free(xfs_inobt_rec_t *rp, int i, xfs_arch_t arch)
+{
+	XFS_INOBT_SET_FREE(rp, i, arch);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_ITOBHV)
+bhv_desc_t *
+xfs_itobhv(xfs_inode_t *ip)
+{
+	return XFS_ITOBHV(ip);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_ITOV)
+vnode_t *
+xfs_itov(xfs_inode_t *ip)
+{
+	return XFS_ITOV(ip);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_LBLOG)
+int
+xfs_lblog(xfs_mount_t *mp)
+{
+	return XFS_LBLOG(mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_LBSIZE)
+int
+xfs_lbsize(xfs_mount_t *mp)
+{
+	return XFS_LBSIZE(mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_LIC_ALL_FREE)
+void
+xfs_lic_all_free(xfs_log_item_chunk_t *cp)
+{
+	XFS_LIC_ALL_FREE(cp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_LIC_ARE_ALL_FREE)
+int
+xfs_lic_are_all_free(xfs_log_item_chunk_t *cp)
+{
+	return XFS_LIC_ARE_ALL_FREE(cp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_LIC_CLAIM)
+void
+xfs_lic_claim(xfs_log_item_chunk_t *cp, int slot)
+{
+	XFS_LIC_CLAIM(cp, slot);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_LIC_DESC_TO_CHUNK)
+xfs_log_item_chunk_t *
+xfs_lic_desc_to_chunk(xfs_log_item_desc_t *dp)
+{
+	return XFS_LIC_DESC_TO_CHUNK(dp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_LIC_DESC_TO_SLOT)
+int
+xfs_lic_desc_to_slot(xfs_log_item_desc_t *dp)
+{
+	return XFS_LIC_DESC_TO_SLOT(dp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_LIC_INIT)
+void
+xfs_lic_init(xfs_log_item_chunk_t *cp)
+{
+	XFS_LIC_INIT(cp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_LIC_INIT_SLOT)
+void
+xfs_lic_init_slot(xfs_log_item_chunk_t *cp, int slot)
+{
+	XFS_LIC_INIT_SLOT(cp, slot);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_LIC_ISFREE)
+int
+xfs_lic_isfree(xfs_log_item_chunk_t *cp, int slot)
+{
+	return XFS_LIC_ISFREE(cp, slot);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_LIC_RELSE)
+void
+xfs_lic_relse(xfs_log_item_chunk_t *cp, int slot)
+{
+	XFS_LIC_RELSE(cp, slot);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_LIC_SLOT)
+xfs_log_item_desc_t *
+xfs_lic_slot(xfs_log_item_chunk_t *cp, int slot)
+{
+	return XFS_LIC_SLOT(cp, slot);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_LIC_VACANCY)
+int
+xfs_lic_vacancy(xfs_log_item_chunk_t *cp)
+{
+	return XFS_LIC_VACANCY(cp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_LITINO)
+int
+xfs_litino(xfs_mount_t *mp)
+{
+	return XFS_LITINO(mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_MAKE_IPTR)
+xfs_dinode_t *
+xfs_make_iptr(xfs_mount_t *mp, xfs_buf_t *b, int o)
+{
+	return XFS_MAKE_IPTR(mp, b, o);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_MASK32HI)
+__uint32_t
+xfs_mask32hi(int n)
+{
+	return XFS_MASK32HI(n);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_MASK32LO)
+__uint32_t
+xfs_mask32lo(int n)
+{
+	return XFS_MASK32LO(n);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_MASK64HI)
+__uint64_t
+xfs_mask64hi(int n)
+{
+	return XFS_MASK64HI(n);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_MASK64LO)
+__uint64_t
+xfs_mask64lo(int n)
+{
+	return XFS_MASK64LO(n);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_MIN_FREELIST)
+int
+xfs_min_freelist(xfs_agf_t *a, xfs_mount_t *mp)
+{
+	return XFS_MIN_FREELIST(a, mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_MIN_FREELIST_PAG)
+int
+xfs_min_freelist_pag(xfs_perag_t *pag, xfs_mount_t *mp)
+{
+	return XFS_MIN_FREELIST_PAG(pag, mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_MIN_FREELIST_RAW)
+int
+xfs_min_freelist_raw(uint bl, uint cl, xfs_mount_t *mp)
+{
+	return XFS_MIN_FREELIST_RAW(bl, cl, mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_MTOVFS)
+vfs_t *
+xfs_mtovfs(xfs_mount_t *mp)
+{
+	return XFS_MTOVFS(mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_OFFBNO_TO_AGINO)
+xfs_agino_t
+xfs_offbno_to_agino(xfs_mount_t *mp, xfs_agblock_t b, int o)
+{
+	return XFS_OFFBNO_TO_AGINO(mp, b, o);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_PREALLOC_BLOCKS)
+xfs_agblock_t
+xfs_prealloc_blocks(xfs_mount_t *mp)
+{
+	return XFS_PREALLOC_BLOCKS(mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_SB_BLOCK)
+xfs_agblock_t
+xfs_sb_block(xfs_mount_t *mp)
+{
+	return XFS_SB_BLOCK(mp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_SB_GOOD_VERSION)
+int
+xfs_sb_good_version(xfs_sb_t *sbp)
+{
+	return XFS_SB_GOOD_VERSION(sbp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_SB_VERSION_ADDATTR)
+void
+xfs_sb_version_addattr(xfs_sb_t *sbp)
+{
+	XFS_SB_VERSION_ADDATTR(sbp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_SB_VERSION_ADDDALIGN)
+void
+xfs_sb_version_adddalign(xfs_sb_t *sbp)
+{
+	XFS_SB_VERSION_ADDDALIGN(sbp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_SB_VERSION_ADDNLINK)
+void
+xfs_sb_version_addnlink(xfs_sb_t *sbp)
+{
+	XFS_SB_VERSION_ADDNLINK(sbp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_SB_VERSION_ADDQUOTA)
+void
+xfs_sb_version_addquota(xfs_sb_t *sbp)
+{
+	XFS_SB_VERSION_ADDQUOTA(sbp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_SB_VERSION_ADDSHARED)
+void
+xfs_sb_version_addshared(xfs_sb_t *sbp)
+{
+	XFS_SB_VERSION_ADDSHARED(sbp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_SB_VERSION_HASALIGN)
+int
+xfs_sb_version_hasalign(xfs_sb_t *sbp)
+{
+	return XFS_SB_VERSION_HASALIGN(sbp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_SB_VERSION_HASATTR)
+int
+xfs_sb_version_hasattr(xfs_sb_t *sbp)
+{
+	return XFS_SB_VERSION_HASATTR(sbp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_SB_VERSION_HASDALIGN)
+int
+xfs_sb_version_hasdalign(xfs_sb_t *sbp)
+{
+	return XFS_SB_VERSION_HASDALIGN(sbp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_SB_VERSION_HASDIRV2)
+int
+xfs_sb_version_hasdirv2(xfs_sb_t *sbp)
+{
+	return XFS_SB_VERSION_HASDIRV2(sbp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_SB_VERSION_HASEXTFLGBIT)
+int
+xfs_sb_version_hasextflgbit(xfs_sb_t *sbp)
+{
+	return XFS_SB_VERSION_HASEXTFLGBIT(sbp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_SB_VERSION_HASNLINK)
+int
+xfs_sb_version_hasnlink(xfs_sb_t *sbp)
+{
+	return XFS_SB_VERSION_HASNLINK(sbp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_SB_VERSION_HASQUOTA)
+int
+xfs_sb_version_hasquota(xfs_sb_t *sbp)
+{
+	return XFS_SB_VERSION_HASQUOTA(sbp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_SB_VERSION_HASSHARED)
+int
+xfs_sb_version_hasshared(xfs_sb_t *sbp)
+{
+	return XFS_SB_VERSION_HASSHARED(sbp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_SB_VERSION_NUM)
+int
+xfs_sb_version_num(xfs_sb_t *sbp)
+{
+	return XFS_SB_VERSION_NUM(sbp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_SB_VERSION_SUBALIGN)
+void
+xfs_sb_version_subalign(xfs_sb_t *sbp)
+{
+	XFS_SB_VERSION_SUBALIGN(sbp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_SB_VERSION_SUBSHARED)
+void
+xfs_sb_version_subshared(xfs_sb_t *sbp)
+{
+	XFS_SB_VERSION_SUBSHARED(sbp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_SB_VERSION_HASLOGV2)
+int
+xfs_sb_version_haslogv2(xfs_sb_t *sbp)
+{
+	return XFS_SB_VERSION_HASLOGV2(sbp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_SB_VERSION_HASSECTOR)
+int
+xfs_sb_version_hassector(xfs_sb_t *sbp)
+{
+	return XFS_SB_VERSION_HASSECTOR(sbp);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_SB_VERSION_TONEW)
+unsigned
+xfs_sb_version_tonew(unsigned v)
+{
+	return XFS_SB_VERSION_TONEW(v);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_SB_VERSION_TOOLD)
+unsigned
+xfs_sb_version_toold(unsigned v)
+{
+	return XFS_SB_VERSION_TOOLD(v);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XLOG_GRANT_ADD_SPACE)
+void
+xlog_grant_add_space(xlog_t *log, int bytes, int type)
+{
+	XLOG_GRANT_ADD_SPACE(log, bytes, type);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XLOG_GRANT_SUB_SPACE)
+void
+xlog_grant_sub_space(xlog_t *log, int bytes, int type)
+{
+	XLOG_GRANT_SUB_SPACE(log, bytes, type);
+}
+#endif
+
+#if XFS_WANT_FUNCS_C || (XFS_WANT_SPACE_C && XFSSO_XFS_SB_VERSION_HASMOREBITS)
+int
+xfs_sb_version_hasmorebits(xfs_sb_t *sbp)
+{
+	return XFS_SB_VERSION_HASMOREBITS(sbp);
+}
+#endif
+
diff --git a/fs/xfs/xfs_macros.h b/fs/xfs/xfs_macros.h
new file mode 100644
index 00000000000000..0a9307514a4887
--- /dev/null
+++ b/fs/xfs/xfs_macros.h
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_MACROS_H__
+#define	__XFS_MACROS_H__
+
+/*
+ * Set for debug kernels and simulation
+ * These replacements save space.
+ * Used in xfs_macros.c.
+ */
+#define	XFS_WANT_SPACE_C	\
+	(!defined(_STANDALONE) && defined(DEBUG))
+
+/*
+ * Set for debug simulation and kernel builds, but not for standalone.
+ * These replacements do not save space.
+ * Used in xfs_macros.c.
+ */
+#define	XFS_WANT_FUNCS_C	\
+	(!defined(_STANDALONE) && defined(DEBUG))
+
+/*
+ * Corresponding names used in .h files.
+ */
+#define	XFS_WANT_SPACE	(XFS_WANT_SPACE_C && !defined(XFS_MACRO_C))
+#define	XFS_WANT_FUNCS	(XFS_WANT_FUNCS_C && !defined(XFS_MACRO_C))
+
+/*
+ * These are the macros that get turned into functions to save space.
+ */
+#define	XFSSO_NULLSTARTBLOCK 1
+#define	XFSSO_XFS_AGB_TO_DADDR 1
+#define XFSSO_XFS_AGB_TO_FSB 1
+#define	XFSSO_XFS_AGINO_TO_INO 1
+#define	XFSSO_XFS_ALLOC_BLOCK_MINRECS 1
+#define	XFSSO_XFS_ATTR_SF_NEXTENTRY 1
+#define	XFSSO_XFS_BMAP_BLOCK_DMAXRECS 1
+#define	XFSSO_XFS_BMAP_BLOCK_IMAXRECS 1
+#define	XFSSO_XFS_BMAP_BLOCK_IMINRECS 1
+#define	XFSSO_XFS_BMAP_INIT 1
+#define	XFSSO_XFS_BMAP_PTR_IADDR 1
+#define	XFSSO_XFS_BMAP_SANITY_CHECK 1
+#define	XFSSO_XFS_BMAPI_AFLAG 1
+#define	XFSSO_XFS_CFORK_SIZE 1
+#define	XFSSO_XFS_DA_COOKIE_BNO 1
+#define	XFSSO_XFS_DA_COOKIE_ENTRY 1
+#define	XFSSO_XFS_DADDR_TO_AGBNO 1
+#define	XFSSO_XFS_DADDR_TO_FSB 1
+#define	XFSSO_XFS_DFORK_PTR 1
+#define	XFSSO_XFS_DIR_SF_GET_DIRINO 1
+#define	XFSSO_XFS_DIR_SF_NEXTENTRY 1
+#define	XFSSO_XFS_DIR_SF_PUT_DIRINO 1
+#define	XFSSO_XFS_FILBLKS_MIN 1
+#define	XFSSO_XFS_FSB_SANITY_CHECK 1
+#define	XFSSO_XFS_FSB_TO_DADDR 1
+#define	XFSSO_XFS_FSB_TO_DB 1
+#define	XFSSO_XFS_IALLOC_INODES 1
+#define	XFSSO_XFS_IFORK_ASIZE 1
+#define	XFSSO_XFS_IFORK_DSIZE 1
+#define	XFSSO_XFS_IFORK_FORMAT 1
+#define	XFSSO_XFS_IFORK_NEXT_SET 1
+#define	XFSSO_XFS_IFORK_NEXTENTS 1
+#define	XFSSO_XFS_IFORK_PTR 1
+#define	XFSSO_XFS_ILOG_FBROOT 1
+#define	XFSSO_XFS_ILOG_FEXT 1
+#define	XFSSO_XFS_INO_MASK 1
+#define	XFSSO_XFS_INO_TO_FSB 1
+#define	XFSSO_XFS_INODE_CLEAR_READ_AHEAD 1
+#define	XFSSO_XFS_MIN_FREELIST 1
+#define XFSSO_XFS_SB_GOOD_VERSION 1
+#define XFSSO_XFS_SB_VERSION_HASNLINK 1
+#define	XFSSO_XLOG_GRANT_ADD_SPACE 1
+#define	XFSSO_XLOG_GRANT_SUB_SPACE 1
+
+#endif	/* __XFS_MACROS_H__ */
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
new file mode 100644
index 00000000000000..96e94778940aa5
--- /dev/null
+++ b/fs/xfs/xfs_mount.c
@@ -0,0 +1,1593 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_alloc.h"
+#include "xfs_rtalloc.h"
+#include "xfs_bmap.h"
+#include "xfs_error.h"
+#include "xfs_bit.h"
+#include "xfs_rw.h"
+#include "xfs_quota.h"
+#include "xfs_fsops.h"
+
+STATIC void	xfs_mount_log_sbunit(xfs_mount_t *, __int64_t);
+STATIC int	xfs_uuid_mount(xfs_mount_t *);
+STATIC void	xfs_uuid_unmount(xfs_mount_t *mp);
+
+void xfs_xlatesb(void *, xfs_sb_t *, int, xfs_arch_t, __int64_t);
+
+static struct {
+    short offset;
+    short type;     /* 0 = integer
+		* 1 = binary / string (no translation)
+		*/
+} xfs_sb_info[] = {
+    { offsetof(xfs_sb_t, sb_magicnum),   0 },
+    { offsetof(xfs_sb_t, sb_blocksize),  0 },
+    { offsetof(xfs_sb_t, sb_dblocks),    0 },
+    { offsetof(xfs_sb_t, sb_rblocks),    0 },
+    { offsetof(xfs_sb_t, sb_rextents),   0 },
+    { offsetof(xfs_sb_t, sb_uuid),       1 },
+    { offsetof(xfs_sb_t, sb_logstart),   0 },
+    { offsetof(xfs_sb_t, sb_rootino),    0 },
+    { offsetof(xfs_sb_t, sb_rbmino),     0 },
+    { offsetof(xfs_sb_t, sb_rsumino),    0 },
+    { offsetof(xfs_sb_t, sb_rextsize),   0 },
+    { offsetof(xfs_sb_t, sb_agblocks),   0 },
+    { offsetof(xfs_sb_t, sb_agcount),    0 },
+    { offsetof(xfs_sb_t, sb_rbmblocks),  0 },
+    { offsetof(xfs_sb_t, sb_logblocks),  0 },
+    { offsetof(xfs_sb_t, sb_versionnum), 0 },
+    { offsetof(xfs_sb_t, sb_sectsize),   0 },
+    { offsetof(xfs_sb_t, sb_inodesize),  0 },
+    { offsetof(xfs_sb_t, sb_inopblock),  0 },
+    { offsetof(xfs_sb_t, sb_fname[0]),   1 },
+    { offsetof(xfs_sb_t, sb_blocklog),   0 },
+    { offsetof(xfs_sb_t, sb_sectlog),    0 },
+    { offsetof(xfs_sb_t, sb_inodelog),   0 },
+    { offsetof(xfs_sb_t, sb_inopblog),   0 },
+    { offsetof(xfs_sb_t, sb_agblklog),   0 },
+    { offsetof(xfs_sb_t, sb_rextslog),   0 },
+    { offsetof(xfs_sb_t, sb_inprogress), 0 },
+    { offsetof(xfs_sb_t, sb_imax_pct),   0 },
+    { offsetof(xfs_sb_t, sb_icount),     0 },
+    { offsetof(xfs_sb_t, sb_ifree),      0 },
+    { offsetof(xfs_sb_t, sb_fdblocks),   0 },
+    { offsetof(xfs_sb_t, sb_frextents),  0 },
+    { offsetof(xfs_sb_t, sb_uquotino),   0 },
+    { offsetof(xfs_sb_t, sb_gquotino),   0 },
+    { offsetof(xfs_sb_t, sb_qflags),     0 },
+    { offsetof(xfs_sb_t, sb_flags),      0 },
+    { offsetof(xfs_sb_t, sb_shared_vn),  0 },
+    { offsetof(xfs_sb_t, sb_inoalignmt), 0 },
+    { offsetof(xfs_sb_t, sb_unit),	 0 },
+    { offsetof(xfs_sb_t, sb_width),	 0 },
+    { offsetof(xfs_sb_t, sb_dirblklog),	 0 },
+    { offsetof(xfs_sb_t, sb_logsectlog), 0 },
+    { offsetof(xfs_sb_t, sb_logsectsize),0 },
+    { offsetof(xfs_sb_t, sb_logsunit),	 0 },
+    { offsetof(xfs_sb_t, sb_features2),	 0 },
+    { sizeof(xfs_sb_t),			 0 }
+};
+
+/*
+ * Return a pointer to an initialized xfs_mount structure.
+ */
+xfs_mount_t *
+xfs_mount_init(void)
+{
+	xfs_mount_t *mp;
+
+	mp = kmem_zalloc(sizeof(*mp), KM_SLEEP);
+
+	AIL_LOCKINIT(&mp->m_ail_lock, "xfs_ail");
+	spinlock_init(&mp->m_sb_lock, "xfs_sb");
+	mutex_init(&mp->m_ilock, MUTEX_DEFAULT, "xfs_ilock");
+	initnsema(&mp->m_growlock, 1, "xfs_grow");
+	/*
+	 * Initialize the AIL.
+	 */
+	xfs_trans_ail_init(mp);
+
+	atomic_set(&mp->m_active_trans, 0);
+
+	return mp;
+}
+
+/*
+ * Free up the resources associated with a mount structure.  Assume that
+ * the structure was initially zeroed, so we can tell which fields got
+ * initialized.
+ */
+void
+xfs_mount_free(
+	xfs_mount_t *mp,
+	int	    remove_bhv)
+{
+	if (mp->m_ihash)
+		xfs_ihash_free(mp);
+	if (mp->m_chash)
+		xfs_chash_free(mp);
+
+	if (mp->m_perag) {
+		int	agno;
+
+		for (agno = 0; agno < mp->m_maxagi; agno++)
+			if (mp->m_perag[agno].pagb_list)
+				kmem_free(mp->m_perag[agno].pagb_list,
+						sizeof(xfs_perag_busy_t) *
+							XFS_PAGB_NUM_SLOTS);
+		kmem_free(mp->m_perag,
+			  sizeof(xfs_perag_t) * mp->m_sb.sb_agcount);
+	}
+
+	AIL_LOCK_DESTROY(&mp->m_ail_lock);
+	spinlock_destroy(&mp->m_sb_lock);
+	mutex_destroy(&mp->m_ilock);
+	freesema(&mp->m_growlock);
+	if (mp->m_quotainfo)
+		XFS_QM_DONE(mp);
+
+	if (mp->m_fsname != NULL)
+		kmem_free(mp->m_fsname, mp->m_fsname_len);
+
+	if (remove_bhv) {
+		struct vfs	*vfsp = XFS_MTOVFS(mp);
+
+		bhv_remove_all_vfsops(vfsp, 0);
+		VFS_REMOVEBHV(vfsp, &mp->m_bhv);
+	}
+
+	kmem_free(mp, sizeof(xfs_mount_t));
+}
+
+
+/*
+ * Check the validity of the SB found.
+ */
+STATIC int
+xfs_mount_validate_sb(
+	xfs_mount_t	*mp,
+	xfs_sb_t	*sbp)
+{
+	/*
+	 * If the log device and data device have the
+	 * same device number, the log is internal.
+	 * Consequently, the sb_logstart should be non-zero.  If
+	 * we have a zero sb_logstart in this case, we may be trying to mount
+	 * a volume filesystem in a non-volume manner.
+	 */
+	if (sbp->sb_magicnum != XFS_SB_MAGIC) {
+		cmn_err(CE_WARN, "XFS: bad magic number");
+		return XFS_ERROR(EWRONGFS);
+	}
+
+	if (!XFS_SB_GOOD_VERSION(sbp)) {
+		cmn_err(CE_WARN, "XFS: bad version");
+		return XFS_ERROR(EWRONGFS);
+	}
+
+	if (unlikely(
+	    sbp->sb_logstart == 0 && mp->m_logdev_targp == mp->m_ddev_targp)) {
+		cmn_err(CE_WARN,
+	"XFS: filesystem is marked as having an external log; "
+	"specify logdev on the\nmount command line.");
+		XFS_CORRUPTION_ERROR("xfs_mount_validate_sb(1)",
+				     XFS_ERRLEVEL_HIGH, mp, sbp);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+
+	if (unlikely(
+	    sbp->sb_logstart != 0 && mp->m_logdev_targp != mp->m_ddev_targp)) {
+		cmn_err(CE_WARN,
+	"XFS: filesystem is marked as having an internal log; "
+	"don't specify logdev on\nthe mount command line.");
+		XFS_CORRUPTION_ERROR("xfs_mount_validate_sb(2)",
+				     XFS_ERRLEVEL_HIGH, mp, sbp);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+
+	/*
+	 * More sanity checking. These were stolen directly from
+	 * xfs_repair.
+	 */
+	if (unlikely(
+	    sbp->sb_agcount <= 0					||
+	    sbp->sb_sectsize < XFS_MIN_SECTORSIZE			||
+	    sbp->sb_sectsize > XFS_MAX_SECTORSIZE			||
+	    sbp->sb_sectlog < XFS_MIN_SECTORSIZE_LOG			||
+	    sbp->sb_sectlog > XFS_MAX_SECTORSIZE_LOG			||
+	    sbp->sb_blocksize < XFS_MIN_BLOCKSIZE			||
+	    sbp->sb_blocksize > XFS_MAX_BLOCKSIZE			||
+	    sbp->sb_blocklog < XFS_MIN_BLOCKSIZE_LOG			||
+	    sbp->sb_blocklog > XFS_MAX_BLOCKSIZE_LOG			||
+	    sbp->sb_inodesize < XFS_DINODE_MIN_SIZE			||
+	    sbp->sb_inodesize > XFS_DINODE_MAX_SIZE			||
+	    (sbp->sb_rextsize * sbp->sb_blocksize > XFS_MAX_RTEXTSIZE)	||
+	    (sbp->sb_rextsize * sbp->sb_blocksize < XFS_MIN_RTEXTSIZE)	||
+	    sbp->sb_imax_pct > 100)) {
+		cmn_err(CE_WARN, "XFS: SB sanity check 1 failed");
+		XFS_CORRUPTION_ERROR("xfs_mount_validate_sb(3)",
+				     XFS_ERRLEVEL_LOW, mp, sbp);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+
+	/*
+	 * Sanity check AG count, size fields against data size field
+	 */
+	if (unlikely(
+	    sbp->sb_dblocks == 0 ||
+	    sbp->sb_dblocks >
+	     (xfs_drfsbno_t)sbp->sb_agcount * sbp->sb_agblocks ||
+	    sbp->sb_dblocks < (xfs_drfsbno_t)(sbp->sb_agcount - 1) *
+			      sbp->sb_agblocks + XFS_MIN_AG_BLOCKS)) {
+		cmn_err(CE_WARN, "XFS: SB sanity check 2 failed");
+		XFS_ERROR_REPORT("xfs_mount_validate_sb(4)",
+				 XFS_ERRLEVEL_LOW, mp);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+
+	ASSERT(PAGE_SHIFT >= sbp->sb_blocklog);
+	ASSERT(sbp->sb_blocklog >= BBSHIFT);
+
+#if XFS_BIG_BLKNOS     /* Limited by ULONG_MAX of page cache index */
+	if (unlikely(
+	    (sbp->sb_dblocks >> (PAGE_SHIFT - sbp->sb_blocklog)) > ULONG_MAX ||
+	    (sbp->sb_rblocks >> (PAGE_SHIFT - sbp->sb_blocklog)) > ULONG_MAX)) {
+#else                  /* Limited by UINT_MAX of sectors */
+	if (unlikely(
+	    (sbp->sb_dblocks << (sbp->sb_blocklog - BBSHIFT)) > UINT_MAX ||
+	    (sbp->sb_rblocks << (sbp->sb_blocklog - BBSHIFT)) > UINT_MAX)) {
+#endif
+		cmn_err(CE_WARN,
+	"XFS: File system is too large to be mounted on this system.");
+		return XFS_ERROR(E2BIG);
+	}
+
+	if (unlikely(sbp->sb_inprogress)) {
+		cmn_err(CE_WARN, "XFS: file system busy");
+		XFS_ERROR_REPORT("xfs_mount_validate_sb(5)",
+				 XFS_ERRLEVEL_LOW, mp);
+		return XFS_ERROR(EFSCORRUPTED);
+	}
+
+	/*
+	 * Until this is fixed only page-sized or smaller data blocks work.
+	 */
+	if (unlikely(sbp->sb_blocksize > PAGE_SIZE)) {
+		cmn_err(CE_WARN,
+		"XFS: Attempted to mount file system with blocksize %d bytes",
+			sbp->sb_blocksize);
+		cmn_err(CE_WARN,
+		"XFS: Only page-sized (%d) or less blocksizes currently work.",
+			PAGE_SIZE);
+		return XFS_ERROR(ENOSYS);
+	}
+
+	return 0;
+}
+
+xfs_agnumber_t
+xfs_initialize_perag(xfs_mount_t *mp, xfs_agnumber_t agcount)
+{
+	xfs_agnumber_t	index, max_metadata;
+	xfs_perag_t	*pag;
+	xfs_agino_t	agino;
+	xfs_ino_t	ino;
+	xfs_sb_t	*sbp = &mp->m_sb;
+	xfs_ino_t	max_inum = XFS_MAXINUMBER_32;
+
+	/* Check to see if the filesystem can overflow 32 bit inodes */
+	agino = XFS_OFFBNO_TO_AGINO(mp, sbp->sb_agblocks - 1, 0);
+	ino = XFS_AGINO_TO_INO(mp, agcount - 1, agino);
+
+	/* Clear the mount flag if no inode can overflow 32 bits
+	 * on this filesystem, or if specifically requested..
+	 */
+	if ((mp->m_flags & XFS_MOUNT_32BITINOOPT) && ino > max_inum) {
+		mp->m_flags |= XFS_MOUNT_32BITINODES;
+	} else {
+		mp->m_flags &= ~XFS_MOUNT_32BITINODES;
+	}
+
+	/* If we can overflow then setup the ag headers accordingly */
+	if (mp->m_flags & XFS_MOUNT_32BITINODES) {
+		/* Calculate how much should be reserved for inodes to
+		 * meet the max inode percentage.
+		 */
+		if (mp->m_maxicount) {
+			__uint64_t	icount;
+
+			icount = sbp->sb_dblocks * sbp->sb_imax_pct;
+			do_div(icount, 100);
+			icount += sbp->sb_agblocks - 1;
+			do_div(icount, mp->m_ialloc_blks);
+			max_metadata = icount;
+		} else {
+			max_metadata = agcount;
+		}
+		for (index = 0; index < agcount; index++) {
+			ino = XFS_AGINO_TO_INO(mp, index, agino);
+			if (ino > max_inum) {
+				index++;
+				break;
+			}
+
+			/* This ag is prefered for inodes */
+			pag = &mp->m_perag[index];
+			pag->pagi_inodeok = 1;
+			if (index < max_metadata)
+				pag->pagf_metadata = 1;
+		}
+	} else {
+		/* Setup default behavior for smaller filesystems */
+		for (index = 0; index < agcount; index++) {
+			pag = &mp->m_perag[index];
+			pag->pagi_inodeok = 1;
+		}
+	}
+	return index;
+}
+
+/*
+ * xfs_xlatesb
+ *
+ *     data       - on disk version of sb
+ *     sb         - a superblock
+ *     dir        - conversion direction: <0 - convert sb to buf
+ *                                        >0 - convert buf to sb
+ *     arch       - architecture to read/write from/to buf
+ *     fields     - which fields to copy (bitmask)
+ */
+void
+xfs_xlatesb(
+	void		*data,
+	xfs_sb_t	*sb,
+	int		dir,
+	xfs_arch_t	arch,
+	__int64_t	fields)
+{
+	xfs_caddr_t	buf_ptr;
+	xfs_caddr_t	mem_ptr;
+	xfs_sb_field_t	f;
+	int		first;
+	int		size;
+
+	ASSERT(dir);
+	ASSERT(fields);
+
+	if (!fields)
+		return;
+
+	buf_ptr = (xfs_caddr_t)data;
+	mem_ptr = (xfs_caddr_t)sb;
+
+	while (fields) {
+		f = (xfs_sb_field_t)xfs_lowbit64((__uint64_t)fields);
+		first = xfs_sb_info[f].offset;
+		size = xfs_sb_info[f + 1].offset - first;
+
+		ASSERT(xfs_sb_info[f].type == 0 || xfs_sb_info[f].type == 1);
+
+		if (arch == ARCH_NOCONVERT ||
+		    size == 1 ||
+		    xfs_sb_info[f].type == 1) {
+			if (dir > 0) {
+				memcpy(mem_ptr + first, buf_ptr + first, size);
+			} else {
+				memcpy(buf_ptr + first, mem_ptr + first, size);
+			}
+		} else {
+			switch (size) {
+			case 2:
+				INT_XLATE(*(__uint16_t*)(buf_ptr+first),
+					  *(__uint16_t*)(mem_ptr+first),
+					  dir, arch);
+				break;
+			case 4:
+				INT_XLATE(*(__uint32_t*)(buf_ptr+first),
+					  *(__uint32_t*)(mem_ptr+first),
+					  dir, arch);
+				break;
+			case 8:
+				INT_XLATE(*(__uint64_t*)(buf_ptr+first),
+					  *(__uint64_t*)(mem_ptr+first), dir, arch);
+				break;
+			default:
+				ASSERT(0);
+			}
+		}
+
+		fields &= ~(1LL << f);
+	}
+}
+
+/*
+ * xfs_readsb
+ *
+ * Does the initial read of the superblock.
+ */
+int
+xfs_readsb(xfs_mount_t *mp)
+{
+	unsigned int	sector_size;
+	unsigned int	extra_flags;
+	xfs_buf_t	*bp;
+	xfs_sb_t	*sbp;
+	int		error;
+
+	ASSERT(mp->m_sb_bp == NULL);
+	ASSERT(mp->m_ddev_targp != NULL);
+
+	/*
+	 * Allocate a (locked) buffer to hold the superblock.
+	 * This will be kept around at all times to optimize
+	 * access to the superblock.
+	 */
+	sector_size = xfs_getsize_buftarg(mp->m_ddev_targp);
+	extra_flags = XFS_BUF_LOCK | XFS_BUF_MANAGE | XFS_BUF_MAPPED;
+
+	bp = xfs_buf_read_flags(mp->m_ddev_targp, XFS_SB_DADDR,
+				BTOBB(sector_size), extra_flags);
+	if (!bp || XFS_BUF_ISERROR(bp)) {
+		cmn_err(CE_WARN, "XFS: SB read failed");
+		error = bp ? XFS_BUF_GETERROR(bp) : ENOMEM;
+		goto fail;
+	}
+	ASSERT(XFS_BUF_ISBUSY(bp));
+	ASSERT(XFS_BUF_VALUSEMA(bp) <= 0);
+
+	/*
+	 * Initialize the mount structure from the superblock.
+	 * But first do some basic consistency checking.
+	 */
+	sbp = XFS_BUF_TO_SBP(bp);
+	xfs_xlatesb(XFS_BUF_PTR(bp), &(mp->m_sb), 1,
+				ARCH_CONVERT, XFS_SB_ALL_BITS);
+
+	error = xfs_mount_validate_sb(mp, &(mp->m_sb));
+	if (error) {
+		cmn_err(CE_WARN, "XFS: SB validate failed");
+		goto fail;
+	}
+
+	/*
+	 * We must be able to do sector-sized and sector-aligned IO.
+	 */
+	if (sector_size > mp->m_sb.sb_sectsize) {
+		cmn_err(CE_WARN,
+			"XFS: device supports only %u byte sectors (not %u)",
+			sector_size, mp->m_sb.sb_sectsize);
+		error = ENOSYS;
+		goto fail;
+	}
+
+	/*
+	 * If device sector size is smaller than the superblock size,
+	 * re-read the superblock so the buffer is correctly sized.
+	 */
+	if (sector_size < mp->m_sb.sb_sectsize) {
+		XFS_BUF_UNMANAGE(bp);
+		xfs_buf_relse(bp);
+		sector_size = mp->m_sb.sb_sectsize;
+		bp = xfs_buf_read_flags(mp->m_ddev_targp, XFS_SB_DADDR,
+					BTOBB(sector_size), extra_flags);
+		if (!bp || XFS_BUF_ISERROR(bp)) {
+			cmn_err(CE_WARN, "XFS: SB re-read failed");
+			error = bp ? XFS_BUF_GETERROR(bp) : ENOMEM;
+			goto fail;
+		}
+		ASSERT(XFS_BUF_ISBUSY(bp));
+		ASSERT(XFS_BUF_VALUSEMA(bp) <= 0);
+	}
+
+	mp->m_sb_bp = bp;
+	xfs_buf_relse(bp);
+	ASSERT(XFS_BUF_VALUSEMA(bp) > 0);
+	return 0;
+
+ fail:
+	if (bp) {
+		XFS_BUF_UNMANAGE(bp);
+		xfs_buf_relse(bp);
+	}
+	return error;
+}
+
+
+/*
+ * xfs_mount_common
+ *
+ * Mount initialization code establishing various mount
+ * fields from the superblock associated with the given
+ * mount structure
+ */
+void
+xfs_mount_common(xfs_mount_t *mp, xfs_sb_t *sbp)
+{
+	int	i;
+
+	mp->m_agfrotor = mp->m_agirotor = 0;
+	spinlock_init(&mp->m_agirotor_lock, "m_agirotor_lock");
+	mp->m_maxagi = mp->m_sb.sb_agcount;
+	mp->m_blkbit_log = sbp->sb_blocklog + XFS_NBBYLOG;
+	mp->m_blkbb_log = sbp->sb_blocklog - BBSHIFT;
+	mp->m_sectbb_log = sbp->sb_sectlog - BBSHIFT;
+	mp->m_agno_log = xfs_highbit32(sbp->sb_agcount - 1) + 1;
+	mp->m_agino_log = sbp->sb_inopblog + sbp->sb_agblklog;
+	mp->m_litino = sbp->sb_inodesize -
+		((uint)sizeof(xfs_dinode_core_t) + (uint)sizeof(xfs_agino_t));
+	mp->m_blockmask = sbp->sb_blocksize - 1;
+	mp->m_blockwsize = sbp->sb_blocksize >> XFS_WORDLOG;
+	mp->m_blockwmask = mp->m_blockwsize - 1;
+	INIT_LIST_HEAD(&mp->m_del_inodes);
+
+	/*
+	 * Setup for attributes, in case they get created.
+	 * This value is for inodes getting attributes for the first time,
+	 * the per-inode value is for old attribute values.
+	 */
+	ASSERT(sbp->sb_inodesize >= 256 && sbp->sb_inodesize <= 2048);
+	switch (sbp->sb_inodesize) {
+	case 256:
+		mp->m_attroffset = XFS_LITINO(mp) - XFS_BMDR_SPACE_CALC(2);
+		break;
+	case 512:
+	case 1024:
+	case 2048:
+		mp->m_attroffset = XFS_BMDR_SPACE_CALC(12);
+		break;
+	default:
+		ASSERT(0);
+	}
+	ASSERT(mp->m_attroffset < XFS_LITINO(mp));
+
+	for (i = 0; i < 2; i++) {
+		mp->m_alloc_mxr[i] = XFS_BTREE_BLOCK_MAXRECS(sbp->sb_blocksize,
+			xfs_alloc, i == 0);
+		mp->m_alloc_mnr[i] = XFS_BTREE_BLOCK_MINRECS(sbp->sb_blocksize,
+			xfs_alloc, i == 0);
+	}
+	for (i = 0; i < 2; i++) {
+		mp->m_bmap_dmxr[i] = XFS_BTREE_BLOCK_MAXRECS(sbp->sb_blocksize,
+			xfs_bmbt, i == 0);
+		mp->m_bmap_dmnr[i] = XFS_BTREE_BLOCK_MINRECS(sbp->sb_blocksize,
+			xfs_bmbt, i == 0);
+	}
+	for (i = 0; i < 2; i++) {
+		mp->m_inobt_mxr[i] = XFS_BTREE_BLOCK_MAXRECS(sbp->sb_blocksize,
+			xfs_inobt, i == 0);
+		mp->m_inobt_mnr[i] = XFS_BTREE_BLOCK_MINRECS(sbp->sb_blocksize,
+			xfs_inobt, i == 0);
+	}
+
+	mp->m_bsize = XFS_FSB_TO_BB(mp, 1);
+	mp->m_ialloc_inos = (int)MAX((__uint16_t)XFS_INODES_PER_CHUNK,
+					sbp->sb_inopblock);
+	mp->m_ialloc_blks = mp->m_ialloc_inos >> sbp->sb_inopblog;
+}
+/*
+ * xfs_mountfs
+ *
+ * This function does the following on an initial mount of a file system:
+ *	- reads the superblock from disk and init the mount struct
+ *	- if we're a 32-bit kernel, do a size check on the superblock
+ *		so we don't mount terabyte filesystems
+ *	- init mount struct realtime fields
+ *	- allocate inode hash table for fs
+ *	- init directory manager
+ *	- perform recovery and init the log manager
+ */
+int
+xfs_mountfs(
+	vfs_t		*vfsp,
+	xfs_mount_t	*mp,
+	int		mfsi_flags)
+{
+	xfs_buf_t	*bp;
+	xfs_sb_t	*sbp = &(mp->m_sb);
+	xfs_inode_t	*rip;
+	vnode_t		*rvp = NULL;
+	int		readio_log, writeio_log;
+	xfs_daddr_t	d;
+	__uint64_t	ret64;
+	__int64_t	update_flags;
+	uint		quotamount, quotaflags;
+	int		agno;
+	int		uuid_mounted = 0;
+	int		error = 0;
+
+	if (mp->m_sb_bp == NULL) {
+		if ((error = xfs_readsb(mp))) {
+			return (error);
+		}
+	}
+	xfs_mount_common(mp, sbp);
+
+	/*
+	 * Check if sb_agblocks is aligned at stripe boundary
+	 * If sb_agblocks is NOT aligned turn off m_dalign since
+	 * allocator alignment is within an ag, therefore ag has
+	 * to be aligned at stripe boundary.
+	 */
+	update_flags = 0LL;
+	if (mp->m_dalign && !(mfsi_flags & XFS_MFSI_SECOND)) {
+		/*
+		 * If stripe unit and stripe width are not multiples
+		 * of the fs blocksize turn off alignment.
+		 */
+		if ((BBTOB(mp->m_dalign) & mp->m_blockmask) ||
+		    (BBTOB(mp->m_swidth) & mp->m_blockmask)) {
+			if (mp->m_flags & XFS_MOUNT_RETERR) {
+				cmn_err(CE_WARN,
+					"XFS: alignment check 1 failed");
+				error = XFS_ERROR(EINVAL);
+				goto error1;
+			}
+			mp->m_dalign = mp->m_swidth = 0;
+		} else {
+			/*
+			 * Convert the stripe unit and width to FSBs.
+			 */
+			mp->m_dalign = XFS_BB_TO_FSBT(mp, mp->m_dalign);
+			if (mp->m_dalign && (sbp->sb_agblocks % mp->m_dalign)) {
+				if (mp->m_flags & XFS_MOUNT_RETERR) {
+					error = XFS_ERROR(EINVAL);
+					goto error1;
+				}
+				xfs_fs_cmn_err(CE_WARN, mp,
+"stripe alignment turned off: sunit(%d)/swidth(%d) incompatible with agsize(%d)",
+					mp->m_dalign, mp->m_swidth,
+					sbp->sb_agblocks);
+
+				mp->m_dalign = 0;
+				mp->m_swidth = 0;
+			} else if (mp->m_dalign) {
+				mp->m_swidth = XFS_BB_TO_FSBT(mp, mp->m_swidth);
+			} else {
+				if (mp->m_flags & XFS_MOUNT_RETERR) {
+					xfs_fs_cmn_err(CE_WARN, mp,
+"stripe alignment turned off: sunit(%d) less than bsize(%d)",
+                                        	mp->m_dalign,
+						mp->m_blockmask +1);
+					error = XFS_ERROR(EINVAL);
+					goto error1;
+				}
+				mp->m_swidth = 0;
+			}
+		}
+
+		/*
+		 * Update superblock with new values
+		 * and log changes
+		 */
+		if (XFS_SB_VERSION_HASDALIGN(sbp)) {
+			if (sbp->sb_unit != mp->m_dalign) {
+				sbp->sb_unit = mp->m_dalign;
+				update_flags |= XFS_SB_UNIT;
+			}
+			if (sbp->sb_width != mp->m_swidth) {
+				sbp->sb_width = mp->m_swidth;
+				update_flags |= XFS_SB_WIDTH;
+			}
+		}
+	} else if ((mp->m_flags & XFS_MOUNT_NOALIGN) != XFS_MOUNT_NOALIGN &&
+		    XFS_SB_VERSION_HASDALIGN(&mp->m_sb)) {
+			mp->m_dalign = sbp->sb_unit;
+			mp->m_swidth = sbp->sb_width;
+	}
+
+	xfs_alloc_compute_maxlevels(mp);
+	xfs_bmap_compute_maxlevels(mp, XFS_DATA_FORK);
+	xfs_bmap_compute_maxlevels(mp, XFS_ATTR_FORK);
+	xfs_ialloc_compute_maxlevels(mp);
+
+	if (sbp->sb_imax_pct) {
+		__uint64_t	icount;
+
+		/* Make sure the maximum inode count is a multiple of the
+		 * units we allocate inodes in.
+		 */
+
+		icount = sbp->sb_dblocks * sbp->sb_imax_pct;
+		do_div(icount, 100);
+		do_div(icount, mp->m_ialloc_blks);
+		mp->m_maxicount = (icount * mp->m_ialloc_blks)  <<
+				   sbp->sb_inopblog;
+	} else
+		mp->m_maxicount = 0;
+
+	mp->m_maxioffset = xfs_max_file_offset(sbp->sb_blocklog);
+
+	/*
+	 * XFS uses the uuid from the superblock as the unique
+	 * identifier for fsid.  We can not use the uuid from the volume
+	 * since a single partition filesystem is identical to a single
+	 * partition volume/filesystem.
+	 */
+	if ((mfsi_flags & XFS_MFSI_SECOND) == 0 &&
+	    (mp->m_flags & XFS_MOUNT_NOUUID) == 0) {
+		if (xfs_uuid_mount(mp)) {
+			error = XFS_ERROR(EINVAL);
+			goto error1;
+		}
+		uuid_mounted=1;
+		ret64 = uuid_hash64(&sbp->sb_uuid);
+		memcpy(&vfsp->vfs_fsid, &ret64, sizeof(ret64));
+	}
+
+	/*
+	 * Set the default minimum read and write sizes unless
+	 * already specified in a mount option.
+	 * We use smaller I/O sizes when the file system
+	 * is being used for NFS service (wsync mount option).
+	 */
+	if (!(mp->m_flags & XFS_MOUNT_DFLT_IOSIZE)) {
+		if (mp->m_flags & XFS_MOUNT_WSYNC) {
+			readio_log = XFS_WSYNC_READIO_LOG;
+			writeio_log = XFS_WSYNC_WRITEIO_LOG;
+		} else {
+			readio_log = XFS_READIO_LOG_LARGE;
+			writeio_log = XFS_WRITEIO_LOG_LARGE;
+		}
+	} else {
+		readio_log = mp->m_readio_log;
+		writeio_log = mp->m_writeio_log;
+	}
+
+	/*
+	 * Set the number of readahead buffers to use based on
+	 * physical memory size.
+	 */
+	if (xfs_physmem <= 4096)		/* <= 16MB */
+		mp->m_nreadaheads = XFS_RW_NREADAHEAD_16MB;
+	else if (xfs_physmem <= 8192)	/* <= 32MB */
+		mp->m_nreadaheads = XFS_RW_NREADAHEAD_32MB;
+	else
+		mp->m_nreadaheads = XFS_RW_NREADAHEAD_K32;
+	if (sbp->sb_blocklog > readio_log) {
+		mp->m_readio_log = sbp->sb_blocklog;
+	} else {
+		mp->m_readio_log = readio_log;
+	}
+	mp->m_readio_blocks = 1 << (mp->m_readio_log - sbp->sb_blocklog);
+	if (sbp->sb_blocklog > writeio_log) {
+		mp->m_writeio_log = sbp->sb_blocklog;
+	} else {
+		mp->m_writeio_log = writeio_log;
+	}
+	mp->m_writeio_blocks = 1 << (mp->m_writeio_log - sbp->sb_blocklog);
+
+	/*
+	 * Set the inode cluster size based on the physical memory
+	 * size.  This may still be overridden by the file system
+	 * block size if it is larger than the chosen cluster size.
+	 */
+	if (xfs_physmem <= btoc(32 * 1024 * 1024)) { /* <= 32 MB */
+		mp->m_inode_cluster_size = XFS_INODE_SMALL_CLUSTER_SIZE;
+	} else {
+		mp->m_inode_cluster_size = XFS_INODE_BIG_CLUSTER_SIZE;
+	}
+	/*
+	 * Set whether we're using inode alignment.
+	 */
+	if (XFS_SB_VERSION_HASALIGN(&mp->m_sb) &&
+	    mp->m_sb.sb_inoalignmt >=
+	    XFS_B_TO_FSBT(mp, mp->m_inode_cluster_size))
+		mp->m_inoalign_mask = mp->m_sb.sb_inoalignmt - 1;
+	else
+		mp->m_inoalign_mask = 0;
+	/*
+	 * If we are using stripe alignment, check whether
+	 * the stripe unit is a multiple of the inode alignment
+	 */
+	if (mp->m_dalign && mp->m_inoalign_mask &&
+	    !(mp->m_dalign & mp->m_inoalign_mask))
+		mp->m_sinoalign = mp->m_dalign;
+	else
+		mp->m_sinoalign = 0;
+	/*
+	 * Check that the data (and log if separate) are an ok size.
+	 */
+	d = (xfs_daddr_t)XFS_FSB_TO_BB(mp, mp->m_sb.sb_dblocks);
+	if (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_dblocks) {
+		cmn_err(CE_WARN, "XFS: size check 1 failed");
+		error = XFS_ERROR(E2BIG);
+		goto error1;
+	}
+	error = xfs_read_buf(mp, mp->m_ddev_targp,
+			     d - XFS_FSS_TO_BB(mp, 1),
+			     XFS_FSS_TO_BB(mp, 1), 0, &bp);
+	if (!error) {
+		xfs_buf_relse(bp);
+	} else {
+		cmn_err(CE_WARN, "XFS: size check 2 failed");
+		if (error == ENOSPC) {
+			error = XFS_ERROR(E2BIG);
+		}
+		goto error1;
+	}
+
+	if (((mfsi_flags & XFS_MFSI_CLIENT) == 0) &&
+	    mp->m_logdev_targp != mp->m_ddev_targp) {
+		d = (xfs_daddr_t)XFS_FSB_TO_BB(mp, mp->m_sb.sb_logblocks);
+		if (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_logblocks) {
+			cmn_err(CE_WARN, "XFS: size check 3 failed");
+			error = XFS_ERROR(E2BIG);
+			goto error1;
+		}
+		error = xfs_read_buf(mp, mp->m_logdev_targp,
+				     d - XFS_FSB_TO_BB(mp, 1),
+				     XFS_FSB_TO_BB(mp, 1), 0, &bp);
+		if (!error) {
+			xfs_buf_relse(bp);
+		} else {
+			cmn_err(CE_WARN, "XFS: size check 3 failed");
+			if (error == ENOSPC) {
+				error = XFS_ERROR(E2BIG);
+			}
+			goto error1;
+		}
+	}
+
+	/*
+	 * Initialize realtime fields in the mount structure
+	 */
+	if ((error = xfs_rtmount_init(mp))) {
+		cmn_err(CE_WARN, "XFS: RT mount failed");
+		goto error1;
+	}
+
+	/*
+	 * For client case we are done now
+	 */
+	if (mfsi_flags & XFS_MFSI_CLIENT) {
+		return(0);
+	}
+
+	/*
+	 *  Copies the low order bits of the timestamp and the randomly
+	 *  set "sequence" number out of a UUID.
+	 */
+	uuid_getnodeuniq(&sbp->sb_uuid, mp->m_fixedfsid);
+
+	/*
+	 *  The vfs structure needs to have a file system independent
+	 *  way of checking for the invariant file system ID.  Since it
+	 *  can't look at mount structures it has a pointer to the data
+	 *  in the mount structure.
+	 *
+	 *  File systems that don't support user level file handles (i.e.
+	 *  all of them except for XFS) will leave vfs_altfsid as NULL.
+	 */
+	vfsp->vfs_altfsid = (xfs_fsid_t *)mp->m_fixedfsid;
+	mp->m_dmevmask = 0;	/* not persistent; set after each mount */
+
+	/*
+	 * Select the right directory manager.
+	 */
+	mp->m_dirops =
+		XFS_SB_VERSION_HASDIRV2(&mp->m_sb) ?
+			xfsv2_dirops :
+			xfsv1_dirops;
+
+	/*
+	 * Initialize directory manager's entries.
+	 */
+	XFS_DIR_MOUNT(mp);
+
+	/*
+	 * Initialize the attribute manager's entries.
+	 */
+	mp->m_attr_magicpct = (mp->m_sb.sb_blocksize * 37) / 100;
+
+	/*
+	 * Initialize the precomputed transaction reservations values.
+	 */
+	xfs_trans_init(mp);
+
+	/*
+	 * Allocate and initialize the inode hash table for this
+	 * file system.
+	 */
+	xfs_ihash_init(mp);
+	xfs_chash_init(mp);
+
+	/*
+	 * Allocate and initialize the per-ag data.
+	 */
+	init_rwsem(&mp->m_peraglock);
+	mp->m_perag =
+		kmem_zalloc(sbp->sb_agcount * sizeof(xfs_perag_t), KM_SLEEP);
+
+	mp->m_maxagi = xfs_initialize_perag(mp, sbp->sb_agcount);
+
+	/*
+	 * log's mount-time initialization. Perform 1st part recovery if needed
+	 */
+	if (likely(sbp->sb_logblocks > 0)) {	/* check for volume case */
+		error = xfs_log_mount(mp, mp->m_logdev_targp,
+				      XFS_FSB_TO_DADDR(mp, sbp->sb_logstart),
+				      XFS_FSB_TO_BB(mp, sbp->sb_logblocks));
+		if (error) {
+			cmn_err(CE_WARN, "XFS: log mount failed");
+			goto error2;
+		}
+	} else {	/* No log has been defined */
+		cmn_err(CE_WARN, "XFS: no log defined");
+		XFS_ERROR_REPORT("xfs_mountfs_int(1)", XFS_ERRLEVEL_LOW, mp);
+		error = XFS_ERROR(EFSCORRUPTED);
+		goto error2;
+	}
+
+	/*
+	 * Get and sanity-check the root inode.
+	 * Save the pointer to it in the mount structure.
+	 */
+	error = xfs_iget(mp, NULL, sbp->sb_rootino, 0, XFS_ILOCK_EXCL, &rip, 0);
+	if (error) {
+		cmn_err(CE_WARN, "XFS: failed to read root inode");
+		goto error3;
+	}
+
+	ASSERT(rip != NULL);
+	rvp = XFS_ITOV(rip);
+
+	if (unlikely((rip->i_d.di_mode & S_IFMT) != S_IFDIR)) {
+		cmn_err(CE_WARN, "XFS: corrupted root inode");
+		prdev("Root inode %llu is not a directory",
+		      mp->m_ddev_targp, (unsigned long long)rip->i_ino);
+		xfs_iunlock(rip, XFS_ILOCK_EXCL);
+		XFS_ERROR_REPORT("xfs_mountfs_int(2)", XFS_ERRLEVEL_LOW,
+				 mp);
+		error = XFS_ERROR(EFSCORRUPTED);
+		goto error4;
+	}
+	mp->m_rootip = rip;	/* save it */
+
+	xfs_iunlock(rip, XFS_ILOCK_EXCL);
+
+	/*
+	 * Initialize realtime inode pointers in the mount structure
+	 */
+	if ((error = xfs_rtmount_inodes(mp))) {
+		/*
+		 * Free up the root inode.
+		 */
+		cmn_err(CE_WARN, "XFS: failed to read RT inodes");
+		goto error4;
+	}
+
+	/*
+	 * If fs is not mounted readonly, then update the superblock
+	 * unit and width changes.
+	 */
+	if (update_flags && !(vfsp->vfs_flag & VFS_RDONLY))
+		xfs_mount_log_sbunit(mp, update_flags);
+
+	/*
+	 * Initialise the XFS quota management subsystem for this mount
+	 */
+	if ((error = XFS_QM_INIT(mp, &quotamount, &quotaflags)))
+		goto error4;
+
+	/*
+	 * Finish recovering the file system.  This part needed to be
+	 * delayed until after the root and real-time bitmap inodes
+	 * were consistently read in.
+	 */
+	error = xfs_log_mount_finish(mp, mfsi_flags);
+	if (error) {
+		cmn_err(CE_WARN, "XFS: log mount finish failed");
+		goto error4;
+	}
+
+	/*
+	 * Complete the quota initialisation, post-log-replay component.
+	 */
+	if ((error = XFS_QM_MOUNT(mp, quotamount, quotaflags, mfsi_flags)))
+		goto error4;
+
+	return 0;
+
+ error4:
+	/*
+	 * Free up the root inode.
+	 */
+	VN_RELE(rvp);
+ error3:
+	xfs_log_unmount_dealloc(mp);
+ error2:
+	xfs_ihash_free(mp);
+	xfs_chash_free(mp);
+	for (agno = 0; agno < sbp->sb_agcount; agno++)
+		if (mp->m_perag[agno].pagb_list)
+			kmem_free(mp->m_perag[agno].pagb_list,
+			  sizeof(xfs_perag_busy_t) * XFS_PAGB_NUM_SLOTS);
+	kmem_free(mp->m_perag, sbp->sb_agcount * sizeof(xfs_perag_t));
+	mp->m_perag = NULL;
+	/* FALLTHROUGH */
+ error1:
+	if (uuid_mounted)
+		xfs_uuid_unmount(mp);
+	xfs_freesb(mp);
+	return error;
+}
+
+/*
+ * xfs_unmountfs
+ *
+ * This flushes out the inodes,dquots and the superblock, unmounts the
+ * log and makes sure that incore structures are freed.
+ */
+int
+xfs_unmountfs(xfs_mount_t *mp, struct cred *cr)
+{
+	struct vfs	*vfsp = XFS_MTOVFS(mp);
+#if defined(DEBUG) || defined(INDUCE_IO_ERROR)
+	int64_t		fsid;
+#endif
+
+	xfs_iflush_all(mp, XFS_FLUSH_ALL);
+
+	XFS_QM_DQPURGEALL(mp,
+		XFS_QMOPT_UQUOTA | XFS_QMOPT_GQUOTA | XFS_QMOPT_UMOUNTING);
+
+	/*
+	 * Flush out the log synchronously so that we know for sure
+	 * that nothing is pinned.  This is important because bflush()
+	 * will skip pinned buffers.
+	 */
+	xfs_log_force(mp, (xfs_lsn_t)0, XFS_LOG_FORCE | XFS_LOG_SYNC);
+
+	xfs_binval(mp->m_ddev_targp);
+	if (mp->m_rtdev_targp) {
+		xfs_binval(mp->m_rtdev_targp);
+	}
+
+	xfs_unmountfs_writesb(mp);
+
+	xfs_unmountfs_wait(mp); 		/* wait for async bufs */
+
+	xfs_log_unmount(mp);			/* Done! No more fs ops. */
+
+	xfs_freesb(mp);
+
+	/*
+	 * All inodes from this mount point should be freed.
+	 */
+	ASSERT(mp->m_inodes == NULL);
+
+	/*
+	 * We may have bufs that are in the process of getting written still.
+	 * We must wait for the I/O completion of those. The sync flag here
+	 * does a two pass iteration thru the bufcache.
+	 */
+	if (XFS_FORCED_SHUTDOWN(mp)) {
+		xfs_incore_relse(mp->m_ddev_targp, 0, 1); /* synchronous */
+	}
+
+	xfs_unmountfs_close(mp, cr);
+	if ((mp->m_flags & XFS_MOUNT_NOUUID) == 0)
+		xfs_uuid_unmount(mp);
+
+#if defined(DEBUG) || defined(INDUCE_IO_ERROR)
+	/*
+	 * clear all error tags on this filesystem
+	 */
+	memcpy(&fsid, &vfsp->vfs_fsid, sizeof(int64_t));
+	xfs_errortag_clearall_umount(fsid, mp->m_fsname, 0);
+#endif
+	XFS_IODONE(vfsp);
+	xfs_mount_free(mp, 1);
+	return 0;
+}
+
+void
+xfs_unmountfs_close(xfs_mount_t *mp, struct cred *cr)
+{
+	if (mp->m_logdev_targp != mp->m_ddev_targp)
+		xfs_free_buftarg(mp->m_logdev_targp, 1);
+	if (mp->m_rtdev_targp)
+		xfs_free_buftarg(mp->m_rtdev_targp, 1);
+	xfs_free_buftarg(mp->m_ddev_targp, 0);
+}
+
+void
+xfs_unmountfs_wait(xfs_mount_t *mp)
+{
+	if (mp->m_logdev_targp != mp->m_ddev_targp)
+		xfs_wait_buftarg(mp->m_logdev_targp);
+	if (mp->m_rtdev_targp)
+		xfs_wait_buftarg(mp->m_rtdev_targp);
+	xfs_wait_buftarg(mp->m_ddev_targp);
+}
+
+int
+xfs_unmountfs_writesb(xfs_mount_t *mp)
+{
+	xfs_buf_t	*sbp;
+	xfs_sb_t	*sb;
+	int		error = 0;
+
+	/*
+	 * skip superblock write if fs is read-only, or
+	 * if we are doing a forced umount.
+	 */
+	sbp = xfs_getsb(mp, 0);
+	if (!(XFS_MTOVFS(mp)->vfs_flag & VFS_RDONLY ||
+		XFS_FORCED_SHUTDOWN(mp))) {
+		/*
+		 * mark shared-readonly if desired
+		 */
+		sb = XFS_BUF_TO_SBP(sbp);
+		if (mp->m_mk_sharedro) {
+			if (!(sb->sb_flags & XFS_SBF_READONLY))
+				sb->sb_flags |= XFS_SBF_READONLY;
+			if (!XFS_SB_VERSION_HASSHARED(sb))
+				XFS_SB_VERSION_ADDSHARED(sb);
+			xfs_fs_cmn_err(CE_NOTE, mp,
+				"Unmounting, marking shared read-only");
+		}
+		XFS_BUF_UNDONE(sbp);
+		XFS_BUF_UNREAD(sbp);
+		XFS_BUF_UNDELAYWRITE(sbp);
+		XFS_BUF_WRITE(sbp);
+		XFS_BUF_UNASYNC(sbp);
+		ASSERT(XFS_BUF_TARGET(sbp) == mp->m_ddev_targp);
+		xfsbdstrat(mp, sbp);
+		/* Nevermind errors we might get here. */
+		error = xfs_iowait(sbp);
+		if (error)
+			xfs_ioerror_alert("xfs_unmountfs_writesb",
+					  mp, sbp, XFS_BUF_ADDR(sbp));
+		if (error && mp->m_mk_sharedro)
+			xfs_fs_cmn_err(CE_ALERT, mp, "Superblock write error detected while unmounting.  Filesystem may not be marked shared readonly");
+	}
+	xfs_buf_relse(sbp);
+	return (error);
+}
+
+/*
+ * xfs_mod_sb() can be used to copy arbitrary changes to the
+ * in-core superblock into the superblock buffer to be logged.
+ * It does not provide the higher level of locking that is
+ * needed to protect the in-core superblock from concurrent
+ * access.
+ */
+void
+xfs_mod_sb(xfs_trans_t *tp, __int64_t fields)
+{
+	xfs_buf_t	*bp;
+	int		first;
+	int		last;
+	xfs_mount_t	*mp;
+	xfs_sb_t	*sbp;
+	xfs_sb_field_t	f;
+
+	ASSERT(fields);
+	if (!fields)
+		return;
+	mp = tp->t_mountp;
+	bp = xfs_trans_getsb(tp, mp, 0);
+	sbp = XFS_BUF_TO_SBP(bp);
+	first = sizeof(xfs_sb_t);
+	last = 0;
+
+	/* translate/copy */
+
+	xfs_xlatesb(XFS_BUF_PTR(bp), &(mp->m_sb), -1, ARCH_CONVERT, fields);
+
+	/* find modified range */
+
+	f = (xfs_sb_field_t)xfs_lowbit64((__uint64_t)fields);
+	ASSERT((1LL << f) & XFS_SB_MOD_BITS);
+	first = xfs_sb_info[f].offset;
+
+	f = (xfs_sb_field_t)xfs_highbit64((__uint64_t)fields);
+	ASSERT((1LL << f) & XFS_SB_MOD_BITS);
+	last = xfs_sb_info[f + 1].offset - 1;
+
+	xfs_trans_log_buf(tp, bp, first, last);
+}
+
+/*
+ * xfs_mod_incore_sb_unlocked() is a utility routine common used to apply
+ * a delta to a specified field in the in-core superblock.  Simply
+ * switch on the field indicated and apply the delta to that field.
+ * Fields are not allowed to dip below zero, so if the delta would
+ * do this do not apply it and return EINVAL.
+ *
+ * The SB_LOCK must be held when this routine is called.
+ */
+STATIC int
+xfs_mod_incore_sb_unlocked(xfs_mount_t *mp, xfs_sb_field_t field,
+			int delta, int rsvd)
+{
+	int		scounter;	/* short counter for 32 bit fields */
+	long long	lcounter;	/* long counter for 64 bit fields */
+	long long	res_used, rem;
+
+	/*
+	 * With the in-core superblock spin lock held, switch
+	 * on the indicated field.  Apply the delta to the
+	 * proper field.  If the fields value would dip below
+	 * 0, then do not apply the delta and return EINVAL.
+	 */
+	switch (field) {
+	case XFS_SBS_ICOUNT:
+		lcounter = (long long)mp->m_sb.sb_icount;
+		lcounter += delta;
+		if (lcounter < 0) {
+			ASSERT(0);
+			return (XFS_ERROR(EINVAL));
+		}
+		mp->m_sb.sb_icount = lcounter;
+		return (0);
+	case XFS_SBS_IFREE:
+		lcounter = (long long)mp->m_sb.sb_ifree;
+		lcounter += delta;
+		if (lcounter < 0) {
+			ASSERT(0);
+			return (XFS_ERROR(EINVAL));
+		}
+		mp->m_sb.sb_ifree = lcounter;
+		return (0);
+	case XFS_SBS_FDBLOCKS:
+
+		lcounter = (long long)mp->m_sb.sb_fdblocks;
+		res_used = (long long)(mp->m_resblks - mp->m_resblks_avail);
+
+		if (delta > 0) {		/* Putting blocks back */
+			if (res_used > delta) {
+				mp->m_resblks_avail += delta;
+			} else {
+				rem = delta - res_used;
+				mp->m_resblks_avail = mp->m_resblks;
+				lcounter += rem;
+			}
+		} else {				/* Taking blocks away */
+
+			lcounter += delta;
+
+		/*
+		 * If were out of blocks, use any available reserved blocks if
+		 * were allowed to.
+		 */
+
+			if (lcounter < 0) {
+				if (rsvd) {
+					lcounter = (long long)mp->m_resblks_avail + delta;
+					if (lcounter < 0) {
+						return (XFS_ERROR(ENOSPC));
+					}
+					mp->m_resblks_avail = lcounter;
+					return (0);
+				} else {	/* not reserved */
+					return (XFS_ERROR(ENOSPC));
+				}
+			}
+		}
+
+		mp->m_sb.sb_fdblocks = lcounter;
+		return (0);
+	case XFS_SBS_FREXTENTS:
+		lcounter = (long long)mp->m_sb.sb_frextents;
+		lcounter += delta;
+		if (lcounter < 0) {
+			return (XFS_ERROR(ENOSPC));
+		}
+		mp->m_sb.sb_frextents = lcounter;
+		return (0);
+	case XFS_SBS_DBLOCKS:
+		lcounter = (long long)mp->m_sb.sb_dblocks;
+		lcounter += delta;
+		if (lcounter < 0) {
+			ASSERT(0);
+			return (XFS_ERROR(EINVAL));
+		}
+		mp->m_sb.sb_dblocks = lcounter;
+		return (0);
+	case XFS_SBS_AGCOUNT:
+		scounter = mp->m_sb.sb_agcount;
+		scounter += delta;
+		if (scounter < 0) {
+			ASSERT(0);
+			return (XFS_ERROR(EINVAL));
+		}
+		mp->m_sb.sb_agcount = scounter;
+		return (0);
+	case XFS_SBS_IMAX_PCT:
+		scounter = mp->m_sb.sb_imax_pct;
+		scounter += delta;
+		if (scounter < 0) {
+			ASSERT(0);
+			return (XFS_ERROR(EINVAL));
+		}
+		mp->m_sb.sb_imax_pct = scounter;
+		return (0);
+	case XFS_SBS_REXTSIZE:
+		scounter = mp->m_sb.sb_rextsize;
+		scounter += delta;
+		if (scounter < 0) {
+			ASSERT(0);
+			return (XFS_ERROR(EINVAL));
+		}
+		mp->m_sb.sb_rextsize = scounter;
+		return (0);
+	case XFS_SBS_RBMBLOCKS:
+		scounter = mp->m_sb.sb_rbmblocks;
+		scounter += delta;
+		if (scounter < 0) {
+			ASSERT(0);
+			return (XFS_ERROR(EINVAL));
+		}
+		mp->m_sb.sb_rbmblocks = scounter;
+		return (0);
+	case XFS_SBS_RBLOCKS:
+		lcounter = (long long)mp->m_sb.sb_rblocks;
+		lcounter += delta;
+		if (lcounter < 0) {
+			ASSERT(0);
+			return (XFS_ERROR(EINVAL));
+		}
+		mp->m_sb.sb_rblocks = lcounter;
+		return (0);
+	case XFS_SBS_REXTENTS:
+		lcounter = (long long)mp->m_sb.sb_rextents;
+		lcounter += delta;
+		if (lcounter < 0) {
+			ASSERT(0);
+			return (XFS_ERROR(EINVAL));
+		}
+		mp->m_sb.sb_rextents = lcounter;
+		return (0);
+	case XFS_SBS_REXTSLOG:
+		scounter = mp->m_sb.sb_rextslog;
+		scounter += delta;
+		if (scounter < 0) {
+			ASSERT(0);
+			return (XFS_ERROR(EINVAL));
+		}
+		mp->m_sb.sb_rextslog = scounter;
+		return (0);
+	default:
+		ASSERT(0);
+		return (XFS_ERROR(EINVAL));
+	}
+}
+
+/*
+ * xfs_mod_incore_sb() is used to change a field in the in-core
+ * superblock structure by the specified delta.  This modification
+ * is protected by the SB_LOCK.  Just use the xfs_mod_incore_sb_unlocked()
+ * routine to do the work.
+ */
+int
+xfs_mod_incore_sb(xfs_mount_t *mp, xfs_sb_field_t field, int delta, int rsvd)
+{
+	unsigned long	s;
+	int	status;
+
+	s = XFS_SB_LOCK(mp);
+	status = xfs_mod_incore_sb_unlocked(mp, field, delta, rsvd);
+	XFS_SB_UNLOCK(mp, s);
+	return (status);
+}
+
+/*
+ * xfs_mod_incore_sb_batch() is used to change more than one field
+ * in the in-core superblock structure at a time.  This modification
+ * is protected by a lock internal to this module.  The fields and
+ * changes to those fields are specified in the array of xfs_mod_sb
+ * structures passed in.
+ *
+ * Either all of the specified deltas will be applied or none of
+ * them will.  If any modified field dips below 0, then all modifications
+ * will be backed out and EINVAL will be returned.
+ */
+int
+xfs_mod_incore_sb_batch(xfs_mount_t *mp, xfs_mod_sb_t *msb, uint nmsb, int rsvd)
+{
+	unsigned long	s;
+	int		status=0;
+	xfs_mod_sb_t	*msbp;
+
+	/*
+	 * Loop through the array of mod structures and apply each
+	 * individually.  If any fail, then back out all those
+	 * which have already been applied.  Do all of this within
+	 * the scope of the SB_LOCK so that all of the changes will
+	 * be atomic.
+	 */
+	s = XFS_SB_LOCK(mp);
+	msbp = &msb[0];
+	for (msbp = &msbp[0]; msbp < (msb + nmsb); msbp++) {
+		/*
+		 * Apply the delta at index n.  If it fails, break
+		 * from the loop so we'll fall into the undo loop
+		 * below.
+		 */
+		status = xfs_mod_incore_sb_unlocked(mp, msbp->msb_field,
+						    msbp->msb_delta, rsvd);
+		if (status != 0) {
+			break;
+		}
+	}
+
+	/*
+	 * If we didn't complete the loop above, then back out
+	 * any changes made to the superblock.  If you add code
+	 * between the loop above and here, make sure that you
+	 * preserve the value of status. Loop back until
+	 * we step below the beginning of the array.  Make sure
+	 * we don't touch anything back there.
+	 */
+	if (status != 0) {
+		msbp--;
+		while (msbp >= msb) {
+			status = xfs_mod_incore_sb_unlocked(mp,
+				    msbp->msb_field, -(msbp->msb_delta), rsvd);
+			ASSERT(status == 0);
+			msbp--;
+		}
+	}
+	XFS_SB_UNLOCK(mp, s);
+	return (status);
+}
+
+/*
+ * xfs_getsb() is called to obtain the buffer for the superblock.
+ * The buffer is returned locked and read in from disk.
+ * The buffer should be released with a call to xfs_brelse().
+ *
+ * If the flags parameter is BUF_TRYLOCK, then we'll only return
+ * the superblock buffer if it can be locked without sleeping.
+ * If it can't then we'll return NULL.
+ */
+xfs_buf_t *
+xfs_getsb(
+	xfs_mount_t	*mp,
+	int		flags)
+{
+	xfs_buf_t	*bp;
+
+	ASSERT(mp->m_sb_bp != NULL);
+	bp = mp->m_sb_bp;
+	if (flags & XFS_BUF_TRYLOCK) {
+		if (!XFS_BUF_CPSEMA(bp)) {
+			return NULL;
+		}
+	} else {
+		XFS_BUF_PSEMA(bp, PRIBIO);
+	}
+	XFS_BUF_HOLD(bp);
+	ASSERT(XFS_BUF_ISDONE(bp));
+	return (bp);
+}
+
+/*
+ * Used to free the superblock along various error paths.
+ */
+void
+xfs_freesb(
+	xfs_mount_t	*mp)
+{
+	xfs_buf_t	*bp;
+
+	/*
+	 * Use xfs_getsb() so that the buffer will be locked
+	 * when we call xfs_buf_relse().
+	 */
+	bp = xfs_getsb(mp, 0);
+	XFS_BUF_UNMANAGE(bp);
+	xfs_buf_relse(bp);
+	mp->m_sb_bp = NULL;
+}
+
+/*
+ * See if the UUID is unique among mounted XFS filesystems.
+ * Mount fails if UUID is nil or a FS with the same UUID is already mounted.
+ */
+STATIC int
+xfs_uuid_mount(
+	xfs_mount_t	*mp)
+{
+	if (uuid_is_nil(&mp->m_sb.sb_uuid)) {
+		cmn_err(CE_WARN,
+			"XFS: Filesystem %s has nil UUID - can't mount",
+			mp->m_fsname);
+		return -1;
+	}
+	if (!uuid_table_insert(&mp->m_sb.sb_uuid)) {
+		cmn_err(CE_WARN,
+			"XFS: Filesystem %s has duplicate UUID - can't mount",
+			mp->m_fsname);
+		return -1;
+	}
+	return 0;
+}
+
+/*
+ * Remove filesystem from the UUID table.
+ */
+STATIC void
+xfs_uuid_unmount(
+	xfs_mount_t	*mp)
+{
+	uuid_table_remove(&mp->m_sb.sb_uuid);
+}
+
+/*
+ * Used to log changes to the superblock unit and width fields which could
+ * be altered by the mount options. Only the first superblock is updated.
+ */
+STATIC void
+xfs_mount_log_sbunit(
+	xfs_mount_t	*mp,
+	__int64_t	fields)
+{
+	xfs_trans_t	*tp;
+
+	ASSERT(fields & (XFS_SB_UNIT|XFS_SB_WIDTH|XFS_SB_UUID));
+
+	tp = xfs_trans_alloc(mp, XFS_TRANS_SB_UNIT);
+	if (xfs_trans_reserve(tp, 0, mp->m_sb.sb_sectsize + 128, 0, 0,
+				XFS_DEFAULT_LOG_COUNT)) {
+		xfs_trans_cancel(tp, 0);
+		return;
+	}
+	xfs_mod_sb(tp, fields);
+	xfs_trans_commit(tp, 0, NULL);
+}
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
new file mode 100644
index 00000000000000..a37420eb5fc6b8
--- /dev/null
+++ b/fs/xfs/xfs_mount.h
@@ -0,0 +1,572 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_MOUNT_H__
+#define	__XFS_MOUNT_H__
+
+
+typedef struct xfs_trans_reservations {
+	uint	tr_write;	/* extent alloc trans */
+	uint	tr_itruncate;	/* truncate trans */
+	uint	tr_rename;	/* rename trans */
+	uint	tr_link;	/* link trans */
+	uint	tr_remove;	/* unlink trans */
+	uint	tr_symlink;	/* symlink trans */
+	uint	tr_create;	/* create trans */
+	uint	tr_mkdir;	/* mkdir trans */
+	uint	tr_ifree;	/* inode free trans */
+	uint	tr_ichange;	/* inode update trans */
+	uint	tr_growdata;	/* fs data section grow trans */
+	uint	tr_swrite;	/* sync write inode trans */
+	uint	tr_addafork;	/* cvt inode to attributed trans */
+	uint	tr_writeid;	/* write setuid/setgid file */
+	uint	tr_attrinval;	/* attr fork buffer invalidation */
+	uint	tr_attrset;	/* set/create an attribute */
+	uint	tr_attrrm;	/* remove an attribute */
+	uint	tr_clearagi;	/* clear bad agi unlinked ino bucket */
+	uint	tr_growrtalloc;	/* grow realtime allocations */
+	uint	tr_growrtzero;	/* grow realtime zeroing */
+	uint	tr_growrtfree;	/* grow realtime freeing */
+} xfs_trans_reservations_t;
+
+
+#ifndef __KERNEL__
+/*
+ * Moved here from xfs_ag.h to avoid reordering header files
+ */
+#define XFS_DADDR_TO_AGNO(mp,d) \
+	((xfs_agnumber_t)(XFS_BB_TO_FSBT(mp, d) / (mp)->m_sb.sb_agblocks))
+#define XFS_DADDR_TO_AGBNO(mp,d) \
+	((xfs_agblock_t)(XFS_BB_TO_FSBT(mp, d) % (mp)->m_sb.sb_agblocks))
+#else
+struct cred;
+struct log;
+struct vfs;
+struct vnode;
+struct xfs_mount_args;
+struct xfs_ihash;
+struct xfs_chash;
+struct xfs_inode;
+struct xfs_perag;
+struct xfs_iocore;
+struct xfs_bmbt_irec;
+struct xfs_bmap_free;
+
+#define	AIL_LOCK_T		lock_t
+#define	AIL_LOCKINIT(x,y)	spinlock_init(x,y)
+#define	AIL_LOCK_DESTROY(x)	spinlock_destroy(x)
+#define	AIL_LOCK(mp,s)		s=mutex_spinlock(&(mp)->m_ail_lock)
+#define	AIL_UNLOCK(mp,s)	mutex_spinunlock(&(mp)->m_ail_lock, s)
+
+
+/*
+ * Prototypes and functions for the Data Migration subsystem.
+ */
+
+typedef int	(*xfs_send_data_t)(int, struct vnode *,
+			xfs_off_t, size_t, int, vrwlock_t *);
+typedef int	(*xfs_send_mmap_t)(struct vm_area_struct *, uint);
+typedef int	(*xfs_send_destroy_t)(struct vnode *, dm_right_t);
+typedef int	(*xfs_send_namesp_t)(dm_eventtype_t, struct vfs *,
+			struct vnode *,
+			dm_right_t, struct vnode *, dm_right_t,
+			char *, char *, mode_t, int, int);
+typedef void	(*xfs_send_unmount_t)(struct vfs *, struct vnode *,
+			dm_right_t, mode_t, int, int);
+
+typedef struct xfs_dmops {
+	xfs_send_data_t		xfs_send_data;
+	xfs_send_mmap_t		xfs_send_mmap;
+	xfs_send_destroy_t	xfs_send_destroy;
+	xfs_send_namesp_t	xfs_send_namesp;
+	xfs_send_unmount_t	xfs_send_unmount;
+} xfs_dmops_t;
+
+#define XFS_SEND_DATA(mp, ev,vp,off,len,fl,lock) \
+	(*(mp)->m_dm_ops.xfs_send_data)(ev,vp,off,len,fl,lock)
+#define XFS_SEND_MMAP(mp, vma,fl) \
+	(*(mp)->m_dm_ops.xfs_send_mmap)(vma,fl)
+#define XFS_SEND_DESTROY(mp, vp,right) \
+	(*(mp)->m_dm_ops.xfs_send_destroy)(vp,right)
+#define XFS_SEND_NAMESP(mp, ev,b1,r1,b2,r2,n1,n2,mode,rval,fl) \
+	(*(mp)->m_dm_ops.xfs_send_namesp)(ev,NULL,b1,r1,b2,r2,n1,n2,mode,rval,fl)
+#define XFS_SEND_PREUNMOUNT(mp, vfs,b1,r1,b2,r2,n1,n2,mode,rval,fl) \
+	(*(mp)->m_dm_ops.xfs_send_namesp)(DM_EVENT_PREUNMOUNT,vfs,b1,r1,b2,r2,n1,n2,mode,rval,fl)
+#define XFS_SEND_UNMOUNT(mp, vfsp,vp,right,mode,rval,fl) \
+	(*(mp)->m_dm_ops.xfs_send_unmount)(vfsp,vp,right,mode,rval,fl)
+
+
+/*
+ * Prototypes and functions for the Quota Management subsystem.
+ */
+
+struct xfs_dquot;
+struct xfs_dqtrxops;
+struct xfs_quotainfo;
+
+typedef int	(*xfs_qminit_t)(struct xfs_mount *, uint *, uint *);
+typedef int	(*xfs_qmmount_t)(struct xfs_mount *, uint, uint, int);
+typedef int	(*xfs_qmunmount_t)(struct xfs_mount *);
+typedef void	(*xfs_qmdone_t)(struct xfs_mount *);
+typedef void	(*xfs_dqrele_t)(struct xfs_dquot *);
+typedef int	(*xfs_dqattach_t)(struct xfs_inode *, uint);
+typedef void	(*xfs_dqdetach_t)(struct xfs_inode *);
+typedef int	(*xfs_dqpurgeall_t)(struct xfs_mount *, uint);
+typedef int	(*xfs_dqvopalloc_t)(struct xfs_mount *,
+			struct xfs_inode *, uid_t, gid_t, uint,
+			struct xfs_dquot **, struct xfs_dquot **);
+typedef void	(*xfs_dqvopcreate_t)(struct xfs_trans *, struct xfs_inode *,
+			struct xfs_dquot *, struct xfs_dquot *);
+typedef int	(*xfs_dqvoprename_t)(struct xfs_inode **);
+typedef struct xfs_dquot * (*xfs_dqvopchown_t)(
+			struct xfs_trans *, struct xfs_inode *,
+			struct xfs_dquot **, struct xfs_dquot *);
+typedef int	(*xfs_dqvopchownresv_t)(struct xfs_trans *, struct xfs_inode *,
+			struct xfs_dquot *, struct xfs_dquot *, uint);
+
+typedef struct xfs_qmops {
+	xfs_qminit_t		xfs_qminit;
+	xfs_qmdone_t		xfs_qmdone;
+	xfs_qmmount_t		xfs_qmmount;
+	xfs_qmunmount_t		xfs_qmunmount;
+	xfs_dqrele_t		xfs_dqrele;
+	xfs_dqattach_t		xfs_dqattach;
+	xfs_dqdetach_t		xfs_dqdetach;
+	xfs_dqpurgeall_t	xfs_dqpurgeall;
+	xfs_dqvopalloc_t	xfs_dqvopalloc;
+	xfs_dqvopcreate_t	xfs_dqvopcreate;
+	xfs_dqvoprename_t	xfs_dqvoprename;
+	xfs_dqvopchown_t	xfs_dqvopchown;
+	xfs_dqvopchownresv_t	xfs_dqvopchownresv;
+	struct xfs_dqtrxops	*xfs_dqtrxops;
+} xfs_qmops_t;
+
+#define XFS_QM_INIT(mp, mnt, fl) \
+	(*(mp)->m_qm_ops.xfs_qminit)(mp, mnt, fl)
+#define XFS_QM_MOUNT(mp, mnt, fl, mfsi_flags) \
+	(*(mp)->m_qm_ops.xfs_qmmount)(mp, mnt, fl, mfsi_flags)
+#define XFS_QM_UNMOUNT(mp) \
+	(*(mp)->m_qm_ops.xfs_qmunmount)(mp)
+#define XFS_QM_DONE(mp) \
+	(*(mp)->m_qm_ops.xfs_qmdone)(mp)
+#define XFS_QM_DQRELE(mp, dq) \
+	(*(mp)->m_qm_ops.xfs_dqrele)(dq)
+#define XFS_QM_DQATTACH(mp, ip, fl) \
+	(*(mp)->m_qm_ops.xfs_dqattach)(ip, fl)
+#define XFS_QM_DQDETACH(mp, ip) \
+	(*(mp)->m_qm_ops.xfs_dqdetach)(ip)
+#define XFS_QM_DQPURGEALL(mp, fl) \
+	(*(mp)->m_qm_ops.xfs_dqpurgeall)(mp, fl)
+#define XFS_QM_DQVOPALLOC(mp, ip, uid, gid, fl, dq1, dq2) \
+	(*(mp)->m_qm_ops.xfs_dqvopalloc)(mp, ip, uid, gid, fl, dq1, dq2)
+#define XFS_QM_DQVOPCREATE(mp, tp, ip, dq1, dq2) \
+	(*(mp)->m_qm_ops.xfs_dqvopcreate)(tp, ip, dq1, dq2)
+#define XFS_QM_DQVOPRENAME(mp, ip) \
+	(*(mp)->m_qm_ops.xfs_dqvoprename)(ip)
+#define XFS_QM_DQVOPCHOWN(mp, tp, ip, dqp, dq) \
+	(*(mp)->m_qm_ops.xfs_dqvopchown)(tp, ip, dqp, dq)
+#define XFS_QM_DQVOPCHOWNRESV(mp, tp, ip, dq1, dq2, fl) \
+	(*(mp)->m_qm_ops.xfs_dqvopchownresv)(tp, ip, dq1, dq2, fl)
+
+
+/*
+ * Prototypes and functions for I/O core modularization.
+ */
+
+typedef int		(*xfs_ioinit_t)(struct vfs *,
+				struct xfs_mount_args *, int);
+typedef int		(*xfs_bmapi_t)(struct xfs_trans *, void *,
+				xfs_fileoff_t, xfs_filblks_t, int,
+				xfs_fsblock_t *, xfs_extlen_t,
+				struct xfs_bmbt_irec *, int *,
+				struct xfs_bmap_free *);
+typedef int		(*xfs_bmap_eof_t)(void *, xfs_fileoff_t, int, int *);
+typedef int		(*xfs_iomap_write_direct_t)(
+				void *, loff_t, size_t, int,
+				struct xfs_bmbt_irec *, int *, int);
+typedef int		(*xfs_iomap_write_delay_t)(
+				void *, loff_t, size_t, int,
+				struct xfs_bmbt_irec *, int *);
+typedef int		(*xfs_iomap_write_allocate_t)(
+				void *, struct xfs_bmbt_irec *, int *);
+typedef int		(*xfs_iomap_write_unwritten_t)(
+				void *, loff_t, size_t);
+typedef uint		(*xfs_lck_map_shared_t)(void *);
+typedef void		(*xfs_lock_t)(void *, uint);
+typedef void		(*xfs_lock_demote_t)(void *, uint);
+typedef int		(*xfs_lock_nowait_t)(void *, uint);
+typedef void		(*xfs_unlk_t)(void *, unsigned int);
+typedef xfs_fsize_t	(*xfs_size_t)(void *);
+typedef xfs_fsize_t	(*xfs_iodone_t)(struct vfs *);
+
+typedef struct xfs_ioops {
+	xfs_ioinit_t			xfs_ioinit;
+	xfs_bmapi_t			xfs_bmapi_func;
+	xfs_bmap_eof_t			xfs_bmap_eof_func;
+	xfs_iomap_write_direct_t	xfs_iomap_write_direct;
+	xfs_iomap_write_delay_t		xfs_iomap_write_delay;
+	xfs_iomap_write_allocate_t	xfs_iomap_write_allocate;
+	xfs_iomap_write_unwritten_t	xfs_iomap_write_unwritten;
+	xfs_lock_t			xfs_ilock;
+	xfs_lck_map_shared_t		xfs_lck_map_shared;
+	xfs_lock_demote_t		xfs_ilock_demote;
+	xfs_lock_nowait_t		xfs_ilock_nowait;
+	xfs_unlk_t			xfs_unlock;
+	xfs_size_t			xfs_size_func;
+	xfs_iodone_t			xfs_iodone;
+} xfs_ioops_t;
+
+#define XFS_IOINIT(vfsp, args, flags) \
+	(*(mp)->m_io_ops.xfs_ioinit)(vfsp, args, flags)
+#define XFS_BMAPI(mp, trans,io,bno,len,f,first,tot,mval,nmap,flist)	\
+	(*(mp)->m_io_ops.xfs_bmapi_func) \
+		(trans,(io)->io_obj,bno,len,f,first,tot,mval,nmap,flist)
+#define XFS_BMAP_EOF(mp, io, endoff, whichfork, eof) \
+	(*(mp)->m_io_ops.xfs_bmap_eof_func) \
+		((io)->io_obj, endoff, whichfork, eof)
+#define XFS_IOMAP_WRITE_DIRECT(mp, io, offset, count, flags, mval, nmap, found)\
+	(*(mp)->m_io_ops.xfs_iomap_write_direct) \
+		((io)->io_obj, offset, count, flags, mval, nmap, found)
+#define XFS_IOMAP_WRITE_DELAY(mp, io, offset, count, flags, mval, nmap) \
+	(*(mp)->m_io_ops.xfs_iomap_write_delay) \
+		((io)->io_obj, offset, count, flags, mval, nmap)
+#define XFS_IOMAP_WRITE_ALLOCATE(mp, io, mval, nmap) \
+	(*(mp)->m_io_ops.xfs_iomap_write_allocate) \
+		((io)->io_obj, mval, nmap)
+#define XFS_IOMAP_WRITE_UNWRITTEN(mp, io, offset, count) \
+	(*(mp)->m_io_ops.xfs_iomap_write_unwritten) \
+		((io)->io_obj, offset, count)
+#define XFS_LCK_MAP_SHARED(mp, io) \
+	(*(mp)->m_io_ops.xfs_lck_map_shared)((io)->io_obj)
+#define XFS_ILOCK(mp, io, mode) \
+	(*(mp)->m_io_ops.xfs_ilock)((io)->io_obj, mode)
+#define XFS_ILOCK_NOWAIT(mp, io, mode) \
+	(*(mp)->m_io_ops.xfs_ilock_nowait)((io)->io_obj, mode)
+#define XFS_IUNLOCK(mp, io, mode) \
+	(*(mp)->m_io_ops.xfs_unlock)((io)->io_obj, mode)
+#define XFS_ILOCK_DEMOTE(mp, io, mode) \
+	(*(mp)->m_io_ops.xfs_ilock_demote)((io)->io_obj, mode)
+#define XFS_SIZE(mp, io) \
+	(*(mp)->m_io_ops.xfs_size_func)((io)->io_obj)
+#define XFS_IODONE(vfsp) \
+	(*(mp)->m_io_ops.xfs_iodone)(vfsp)
+
+
+typedef struct xfs_mount {
+	bhv_desc_t		m_bhv;		/* vfs xfs behavior */
+	xfs_tid_t		m_tid;		/* next unused tid for fs */
+	AIL_LOCK_T		m_ail_lock;	/* fs AIL mutex */
+	xfs_ail_entry_t		m_ail;		/* fs active log item list */
+	uint			m_ail_gen;	/* fs AIL generation count */
+	xfs_sb_t		m_sb;		/* copy of fs superblock */
+	lock_t			m_sb_lock;	/* sb counter mutex */
+	struct xfs_buf		*m_sb_bp;	/* buffer for superblock */
+	char			*m_fsname;	/* filesystem name */
+	int			m_fsname_len;	/* strlen of fs name */
+	int			m_bsize;	/* fs logical block size */
+	xfs_agnumber_t		m_agfrotor;	/* last ag where space found */
+	xfs_agnumber_t		m_agirotor;	/* last ag dir inode alloced */
+	lock_t			m_agirotor_lock;/* .. and lock protecting it */
+	xfs_agnumber_t		m_maxagi;	/* highest inode alloc group */
+	int			m_ihsize;	/* size of next field */
+	struct xfs_ihash	*m_ihash;	/* fs private inode hash table*/
+	struct xfs_inode	*m_inodes;	/* active inode list */
+	struct list_head	m_del_inodes;	/* inodes to reclaim */
+	mutex_t			m_ilock;	/* inode list mutex */
+	uint			m_ireclaims;	/* count of calls to reclaim*/
+	uint			m_readio_log;	/* min read size log bytes */
+	uint			m_readio_blocks; /* min read size blocks */
+	uint			m_writeio_log;	/* min write size log bytes */
+	uint			m_writeio_blocks; /* min write size blocks */
+	struct log		*m_log;		/* log specific stuff */
+	int			m_logbufs;	/* number of log buffers */
+	int			m_logbsize;	/* size of each log buffer */
+	uint			m_rsumlevels;	/* rt summary levels */
+	uint			m_rsumsize;	/* size of rt summary, bytes */
+	struct xfs_inode	*m_rbmip;	/* pointer to bitmap inode */
+	struct xfs_inode	*m_rsumip;	/* pointer to summary inode */
+	struct xfs_inode	*m_rootip;	/* pointer to root directory */
+	struct xfs_quotainfo	*m_quotainfo;	/* disk quota information */
+	xfs_buftarg_t		*m_ddev_targp;	/* saves taking the address */
+	xfs_buftarg_t		*m_logdev_targp;/* ptr to log device */
+	xfs_buftarg_t		*m_rtdev_targp;	/* ptr to rt device */
+#define m_dev		m_ddev_targp->pbr_dev
+	__uint8_t		m_dircook_elog;	/* log d-cookie entry bits */
+	__uint8_t		m_blkbit_log;	/* blocklog + NBBY */
+	__uint8_t		m_blkbb_log;	/* blocklog - BBSHIFT */
+	__uint8_t		m_agno_log;	/* log #ag's */
+	__uint8_t		m_agino_log;	/* #bits for agino in inum */
+	__uint8_t		m_nreadaheads;	/* #readahead buffers */
+	__uint16_t		m_inode_cluster_size;/* min inode buf size */
+	uint			m_blockmask;	/* sb_blocksize-1 */
+	uint			m_blockwsize;	/* sb_blocksize in words */
+	uint			m_blockwmask;	/* blockwsize-1 */
+	uint			m_alloc_mxr[2];	/* XFS_ALLOC_BLOCK_MAXRECS */
+	uint			m_alloc_mnr[2];	/* XFS_ALLOC_BLOCK_MINRECS */
+	uint			m_bmap_dmxr[2];	/* XFS_BMAP_BLOCK_DMAXRECS */
+	uint			m_bmap_dmnr[2];	/* XFS_BMAP_BLOCK_DMINRECS */
+	uint			m_inobt_mxr[2];	/* XFS_INOBT_BLOCK_MAXRECS */
+	uint			m_inobt_mnr[2];	/* XFS_INOBT_BLOCK_MINRECS */
+	uint			m_ag_maxlevels;	/* XFS_AG_MAXLEVELS */
+	uint			m_bm_maxlevels[2]; /* XFS_BM_MAXLEVELS */
+	uint			m_in_maxlevels;	/* XFS_IN_MAXLEVELS */
+	struct xfs_perag	*m_perag;	/* per-ag accounting info */
+	struct rw_semaphore	m_peraglock;	/* lock for m_perag (pointer) */
+	sema_t			m_growlock;	/* growfs mutex */
+	int			m_fixedfsid[2];	/* unchanged for life of FS */
+	uint			m_dmevmask;	/* DMI events for this FS */
+	uint			m_flags;	/* global mount flags */
+	uint			m_attroffset;	/* inode attribute offset */
+	uint			m_dir_node_ents; /* #entries in a dir danode */
+	uint			m_attr_node_ents; /* #entries in attr danode */
+	int			m_ialloc_inos;	/* inodes in inode allocation */
+	int			m_ialloc_blks;	/* blocks in inode allocation */
+	int			m_litino;	/* size of inode union area */
+	int			m_inoalign_mask;/* mask sb_inoalignmt if used */
+	uint			m_qflags;	/* quota status flags */
+	xfs_trans_reservations_t m_reservations;/* precomputed res values */
+	__uint64_t		m_maxicount;	/* maximum inode count */
+	__uint64_t		m_maxioffset;	/* maximum inode offset */
+	__uint64_t		m_resblks;	/* total reserved blocks */
+	__uint64_t		m_resblks_avail;/* available reserved blocks */
+#if XFS_BIG_INUMS
+	xfs_ino_t		m_inoadd;	/* add value for ino64_offset */
+#endif
+	int			m_dalign;	/* stripe unit */
+	int			m_swidth;	/* stripe width */
+	int			m_sinoalign;	/* stripe unit inode alignmnt */
+	int			m_attr_magicpct;/* 37% of the blocksize */
+	int			m_dir_magicpct;	/* 37% of the dir blocksize */
+	__uint8_t		m_mk_sharedro;	/* mark shared ro on unmount */
+	__uint8_t		m_inode_quiesce;/* call quiesce on new inodes.
+						   field governed by m_ilock */
+	__uint8_t		m_sectbb_log;	/* sectlog - BBSHIFT */
+	__uint8_t		m_dirversion;	/* 1 or 2 */
+	xfs_dirops_t		m_dirops;	/* table of dir funcs */
+	int			m_dirblksize;	/* directory block sz--bytes */
+	int			m_dirblkfsbs;	/* directory block sz--fsbs */
+	xfs_dablk_t		m_dirdatablk;	/* blockno of dir data v2 */
+	xfs_dablk_t		m_dirleafblk;	/* blockno of dir non-data v2 */
+	xfs_dablk_t		m_dirfreeblk;	/* blockno of dirfreeindex v2 */
+	int			m_chsize;	/* size of next field */
+	struct xfs_chash	*m_chash;	/* fs private inode per-cluster
+						 * hash table */
+	struct xfs_dmops	m_dm_ops;	/* vector of DMI ops */
+	struct xfs_qmops	m_qm_ops;	/* vector of XQM ops */
+	struct xfs_ioops	m_io_ops;	/* vector of I/O ops */
+	atomic_t		m_active_trans;	/* number trans frozen */
+} xfs_mount_t;
+
+/*
+ * Flags for m_flags.
+ */
+#define	XFS_MOUNT_WSYNC		0x00000001	/* for nfs - all metadata ops
+						   must be synchronous except
+						   for space allocations */
+#define	XFS_MOUNT_INO64		0x00000002
+			     /* 0x00000004	-- currently unused */
+			     /* 0x00000008	-- currently unused */
+#define XFS_MOUNT_FS_SHUTDOWN	0x00000010	/* atomic stop of all filesystem
+						   operations, typically for
+						   disk errors in metadata */
+#define XFS_MOUNT_NOATIME	0x00000020	/* don't modify inode access
+						   times on reads */
+#define XFS_MOUNT_RETERR	0x00000040      /* return alignment errors to
+						   user */
+#define XFS_MOUNT_NOALIGN	0x00000080	/* turn off stripe alignment
+						   allocations */
+			     /* 0x00000100	-- currently unused */
+			     /*	0x00000200	-- currently unused */
+#define XFS_MOUNT_NORECOVERY	0x00000400	/* no recovery - dirty fs */
+#define XFS_MOUNT_SHARED	0x00000800	/* shared mount */
+#define XFS_MOUNT_DFLT_IOSIZE	0x00001000	/* set default i/o size */
+#define XFS_MOUNT_OSYNCISOSYNC	0x00002000	/* o_sync is REALLY o_sync */
+						/* osyncisdsync is now default*/
+#define XFS_MOUNT_32BITINODES	0x00004000	/* do not create inodes above
+						 * 32 bits in size */
+#define XFS_MOUNT_32BITINOOPT	0x00008000	/* saved mount option state */
+#define XFS_MOUNT_NOUUID	0x00010000	/* ignore uuid during mount */
+#define XFS_MOUNT_NOLOGFLUSH	0x00020000
+#define XFS_MOUNT_IDELETE	0x00040000	/* delete empty inode clusters*/
+#define XFS_MOUNT_SWALLOC	0x00080000	/* turn on stripe width
+						 * allocation */
+
+/*
+ * Default minimum read and write sizes.
+ */
+#define XFS_READIO_LOG_LARGE	16
+#define XFS_WRITEIO_LOG_LARGE	16
+
+/*
+ * Max and min values for UIO and mount-option defined I/O sizes;
+ * min value can't be less than a page.  Currently unused.
+ */
+#define XFS_MAX_IO_LOG		16	/* 64K */
+#define XFS_MIN_IO_LOG		PAGE_SHIFT
+
+/*
+ * Synchronous read and write sizes.  This should be
+ * better for NFSv2 wsync filesystems.
+ */
+#define	XFS_WSYNC_READIO_LOG	15	/* 32K */
+#define	XFS_WSYNC_WRITEIO_LOG	14	/* 16K */
+
+#define XFS_MAXIOFFSET(mp)	((mp)->m_maxioffset)
+
+#define XFS_FORCED_SHUTDOWN(mp)	((mp)->m_flags & XFS_MOUNT_FS_SHUTDOWN)
+#define xfs_force_shutdown(m,f)	\
+	VFS_FORCE_SHUTDOWN((XFS_MTOVFS(m)), f, __FILE__, __LINE__)
+
+/*
+ * Flags sent to xfs_force_shutdown.
+ */
+#define XFS_METADATA_IO_ERROR	0x1
+#define XFS_LOG_IO_ERROR	0x2
+#define XFS_FORCE_UMOUNT	0x4
+#define XFS_CORRUPT_INCORE	0x8	/* Corrupt in-memory data structures */
+#define XFS_SHUTDOWN_REMOTE_REQ 0x10	/* Shutdown came from remote cell */
+
+/*
+ * xflags for xfs_syncsub
+ */
+#define XFS_XSYNC_RELOC		0x01
+
+/*
+ * Flags for xfs_mountfs
+ */
+#define XFS_MFSI_SECOND		0x01	/* Secondary mount -- skip stuff */
+#define XFS_MFSI_CLIENT		0x02	/* Is a client -- skip lots of stuff */
+#define XFS_MFSI_NOUNLINK	0x08	/* Skip unlinked inode processing in */
+					/* log recovery */
+#define XFS_MFSI_NO_QUOTACHECK	0x10	/* Skip quotacheck processing */
+
+/*
+ * Macros for getting from mount to vfs and back.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_MTOVFS)
+struct vfs *xfs_mtovfs(xfs_mount_t *mp);
+#define	XFS_MTOVFS(mp)		xfs_mtovfs(mp)
+#else
+#define	XFS_MTOVFS(mp)		(bhvtovfs(&(mp)->m_bhv))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BHVTOM)
+xfs_mount_t *xfs_bhvtom(bhv_desc_t *bdp);
+#define	XFS_BHVTOM(bdp)	xfs_bhvtom(bdp)
+#else
+#define XFS_BHVTOM(bdp)		((xfs_mount_t *)BHV_PDATA(bdp))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_VFSTOM)
+xfs_mount_t *xfs_vfstom(vfs_t *vfs);
+#define XFS_VFSTOM(vfs) xfs_vfstom(vfs)
+#else
+#define XFS_VFSTOM(vfs)		\
+	(XFS_BHVTOM(bhv_lookup(VFS_BHVHEAD(vfs), &xfs_vfsops)))
+#endif
+
+
+/*
+ * Moved here from xfs_ag.h to avoid reordering header files
+ */
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DADDR_TO_AGNO)
+xfs_agnumber_t xfs_daddr_to_agno(struct xfs_mount *mp, xfs_daddr_t d);
+#define XFS_DADDR_TO_AGNO(mp,d)         xfs_daddr_to_agno(mp,d)
+#else
+
+static inline xfs_agnumber_t XFS_DADDR_TO_AGNO(xfs_mount_t *mp, xfs_daddr_t d)
+{
+	d = XFS_BB_TO_FSBT(mp, d);
+	do_div(d, mp->m_sb.sb_agblocks);
+	return (xfs_agnumber_t) d;
+}
+
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DADDR_TO_AGBNO)
+xfs_agblock_t xfs_daddr_to_agbno(struct xfs_mount *mp, xfs_daddr_t d);
+#define XFS_DADDR_TO_AGBNO(mp,d)        xfs_daddr_to_agbno(mp,d)
+#else
+
+static inline xfs_agblock_t XFS_DADDR_TO_AGBNO(xfs_mount_t *mp, xfs_daddr_t d)
+{
+	d = XFS_BB_TO_FSBT(mp, d);
+	return (xfs_agblock_t) do_div(d, mp->m_sb.sb_agblocks);
+}
+
+#endif
+
+/*
+ * This structure is for use by the xfs_mod_incore_sb_batch() routine.
+ */
+typedef struct xfs_mod_sb {
+	xfs_sb_field_t	msb_field;	/* Field to modify, see below */
+	int		msb_delta;	/* Change to make to specified field */
+} xfs_mod_sb_t;
+
+#define	XFS_MOUNT_ILOCK(mp)	mutex_lock(&((mp)->m_ilock), PINOD)
+#define	XFS_MOUNT_IUNLOCK(mp)	mutex_unlock(&((mp)->m_ilock))
+#define	XFS_SB_LOCK(mp)		mutex_spinlock(&(mp)->m_sb_lock)
+#define	XFS_SB_UNLOCK(mp,s)	mutex_spinunlock(&(mp)->m_sb_lock,(s))
+
+extern xfs_mount_t *xfs_mount_init(void);
+extern void	xfs_mod_sb(xfs_trans_t *, __int64_t);
+extern void	xfs_mount_free(xfs_mount_t *mp, int remove_bhv);
+extern int	xfs_mountfs(struct vfs *, xfs_mount_t *mp, int);
+
+extern int	xfs_unmountfs(xfs_mount_t *, struct cred *);
+extern void	xfs_unmountfs_wait(xfs_mount_t *);
+extern void	xfs_unmountfs_close(xfs_mount_t *, struct cred *);
+extern int	xfs_unmountfs_writesb(xfs_mount_t *);
+extern int	xfs_unmount_flush(xfs_mount_t *, int);
+extern int	xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int, int);
+extern int	xfs_mod_incore_sb_batch(xfs_mount_t *, xfs_mod_sb_t *,
+			uint, int);
+extern struct xfs_buf *xfs_getsb(xfs_mount_t *, int);
+extern int	xfs_readsb(xfs_mount_t *mp);
+extern void	xfs_freesb(xfs_mount_t *);
+extern void	xfs_do_force_shutdown(bhv_desc_t *, int, char *, int);
+extern int	xfs_syncsub(xfs_mount_t *, int, int, int *);
+extern xfs_agnumber_t	xfs_initialize_perag(xfs_mount_t *, xfs_agnumber_t);
+extern void	xfs_xlatesb(void *, struct xfs_sb *, int, xfs_arch_t,
+			__int64_t);
+
+extern struct vfsops xfs_vfsops;
+extern struct vnodeops xfs_vnodeops;
+
+extern struct xfs_dmops xfs_dmcore_stub;
+extern struct xfs_qmops xfs_qmcore_stub;
+extern struct xfs_ioops xfs_iocore_xfs;
+
+extern int	xfs_init(void);
+extern void	xfs_cleanup(void);
+
+#endif	/* __KERNEL__ */
+
+#endif	/* __XFS_MOUNT_H__ */
diff --git a/fs/xfs/xfs_qmops.c b/fs/xfs/xfs_qmops.c
new file mode 100644
index 00000000000000..4f40c92863d51f
--- /dev/null
+++ b/fs/xfs/xfs_qmops.c
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.	 Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#include "xfs.h"
+
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+
+
+STATIC struct xfs_dquot *
+xfs_dqvopchown_default(
+	struct xfs_trans	*tp,
+	struct xfs_inode	*ip,
+	struct xfs_dquot	**dqp,
+	struct xfs_dquot	*dq)
+{
+	return NULL;
+}
+
+xfs_qmops_t	xfs_qmcore_stub = {
+	.xfs_qminit		= (xfs_qminit_t) fs_noerr,
+	.xfs_qmdone		= (xfs_qmdone_t) fs_noerr,
+	.xfs_qmmount		= (xfs_qmmount_t) fs_noerr,
+	.xfs_qmunmount		= (xfs_qmunmount_t) fs_noerr,
+	.xfs_dqrele		= (xfs_dqrele_t) fs_noerr,
+	.xfs_dqattach		= (xfs_dqattach_t) fs_noerr,
+	.xfs_dqdetach		= (xfs_dqdetach_t) fs_noerr,
+	.xfs_dqpurgeall		= (xfs_dqpurgeall_t) fs_noerr,
+	.xfs_dqvopalloc		= (xfs_dqvopalloc_t) fs_noerr,
+	.xfs_dqvopcreate	= (xfs_dqvopcreate_t) fs_noerr,
+	.xfs_dqvoprename	= (xfs_dqvoprename_t) fs_noerr,
+	.xfs_dqvopchown		= xfs_dqvopchown_default,
+	.xfs_dqvopchownresv	= (xfs_dqvopchownresv_t) fs_noerr,
+};
diff --git a/fs/xfs/xfs_quota.h b/fs/xfs/xfs_quota.h
new file mode 100644
index 00000000000000..703ec4efcb4115
--- /dev/null
+++ b/fs/xfs/xfs_quota.h
@@ -0,0 +1,356 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_QUOTA_H__
+#define __XFS_QUOTA_H__
+
+/*
+ * The ondisk form of a dquot structure.
+ */
+#define XFS_DQUOT_MAGIC		0x4451		/* 'DQ' */
+#define XFS_DQUOT_VERSION	(u_int8_t)0x01	/* latest version number */
+
+/*
+ * uid_t and gid_t are hard-coded to 32 bits in the inode.
+ * Hence, an 'id' in a dquot is 32 bits..
+ */
+typedef __int32_t	xfs_dqid_t;
+
+/*
+ * Eventhough users may not have quota limits occupying all 64-bits,
+ * they may need 64-bit accounting. Hence, 64-bit quota-counters,
+ * and quota-limits. This is a waste in the common case, but hey ...
+ */
+typedef __uint64_t	xfs_qcnt_t;
+typedef __uint16_t	xfs_qwarncnt_t;
+
+/*
+ * This is the main portion of the on-disk representation of quota
+ * information for a user. This is the q_core of the xfs_dquot_t that
+ * is kept in kernel memory. We pad this with some more expansion room
+ * to construct the on disk structure.
+ */
+typedef struct	xfs_disk_dquot {
+/*16*/	u_int16_t	d_magic;	/* dquot magic = XFS_DQUOT_MAGIC */
+/*8 */	u_int8_t	d_version;	/* dquot version */
+/*8 */	u_int8_t	d_flags;	/* XFS_DQ_USER/PROJ/GROUP */
+/*32*/	xfs_dqid_t	d_id;		/* user,project,group id */
+/*64*/	xfs_qcnt_t	d_blk_hardlimit;/* absolute limit on disk blks */
+/*64*/	xfs_qcnt_t	d_blk_softlimit;/* preferred limit on disk blks */
+/*64*/	xfs_qcnt_t	d_ino_hardlimit;/* maximum # allocated inodes */
+/*64*/	xfs_qcnt_t	d_ino_softlimit;/* preferred inode limit */
+/*64*/	xfs_qcnt_t	d_bcount;	/* disk blocks owned by the user */
+/*64*/	xfs_qcnt_t	d_icount;	/* inodes owned by the user */
+/*32*/	__int32_t	d_itimer;	/* zero if within inode limits if not,
+					   this is when we refuse service */
+/*32*/	__int32_t	d_btimer;	/* similar to above; for disk blocks */
+/*16*/	xfs_qwarncnt_t	d_iwarns;	/* warnings issued wrt num inodes */
+/*16*/	xfs_qwarncnt_t	d_bwarns;	/* warnings issued wrt disk blocks */
+/*32*/	__int32_t	d_pad0;		/* 64 bit align */
+/*64*/	xfs_qcnt_t	d_rtb_hardlimit;/* absolute limit on realtime blks */
+/*64*/	xfs_qcnt_t	d_rtb_softlimit;/* preferred limit on RT disk blks */
+/*64*/	xfs_qcnt_t	d_rtbcount;	/* realtime blocks owned */
+/*32*/	__int32_t	d_rtbtimer;	/* similar to above; for RT disk blocks */
+/*16*/	xfs_qwarncnt_t	d_rtbwarns;	/* warnings issued wrt RT disk blocks */
+/*16*/	__uint16_t	d_pad;
+} xfs_disk_dquot_t;
+
+/*
+ * This is what goes on disk. This is separated from the xfs_disk_dquot because
+ * carrying the unnecessary padding would be a waste of memory.
+ */
+typedef struct xfs_dqblk {
+	xfs_disk_dquot_t  dd_diskdq;	/* portion that lives incore as well */
+	char		  dd_fill[32];	/* filling for posterity */
+} xfs_dqblk_t;
+
+/*
+ * flags for q_flags field in the dquot.
+ */
+#define XFS_DQ_USER		0x0001		/* a user quota */
+/* #define XFS_DQ_PROJ		0x0002		-- project quota (IRIX) */
+#define XFS_DQ_GROUP		0x0004		/* a group quota */
+#define XFS_DQ_FLOCKED		0x0008		/* flush lock taken */
+#define XFS_DQ_DIRTY		0x0010		/* dquot is dirty */
+#define XFS_DQ_WANT		0x0020		/* for lookup/reclaim race */
+#define XFS_DQ_INACTIVE		0x0040		/* dq off mplist & hashlist */
+#define XFS_DQ_MARKER		0x0080		/* sentinel */
+
+/*
+ * In the worst case, when both user and group quotas are on,
+ * we can have a max of three dquots changing in a single transaction.
+ */
+#define XFS_DQUOT_LOGRES(mp)	(sizeof(xfs_disk_dquot_t) * 3)
+
+
+/*
+ * These are the structures used to lay out dquots and quotaoff
+ * records on the log. Quite similar to those of inodes.
+ */
+
+/*
+ * log format struct for dquots.
+ * The first two fields must be the type and size fitting into
+ * 32 bits : log_recovery code assumes that.
+ */
+typedef struct xfs_dq_logformat {
+	__uint16_t		qlf_type;      /* dquot log item type */
+	__uint16_t		qlf_size;      /* size of this item */
+	xfs_dqid_t		qlf_id;	       /* usr/grp id number : 32 bits */
+	__int64_t		qlf_blkno;     /* blkno of dquot buffer */
+	__int32_t		qlf_len;       /* len of dquot buffer */
+	__uint32_t		qlf_boffset;   /* off of dquot in buffer */
+} xfs_dq_logformat_t;
+
+/*
+ * log format struct for QUOTAOFF records.
+ * The first two fields must be the type and size fitting into
+ * 32 bits : log_recovery code assumes that.
+ * We write two LI_QUOTAOFF logitems per quotaoff, the last one keeps a pointer
+ * to the first and ensures that the first logitem is taken out of the AIL
+ * only when the last one is securely committed.
+ */
+typedef struct xfs_qoff_logformat {
+	unsigned short		qf_type;	/* quotaoff log item type */
+	unsigned short		qf_size;	/* size of this item */
+	unsigned int		qf_flags;	/* USR and/or GRP */
+	char			qf_pad[12];	/* padding for future */
+} xfs_qoff_logformat_t;
+
+
+/*
+ * Disk quotas status in m_qflags, and also sb_qflags. 16 bits.
+ */
+#define XFS_UQUOTA_ACCT	0x0001  /* user quota accounting ON */
+#define XFS_UQUOTA_ENFD	0x0002  /* user quota limits enforced */
+#define XFS_UQUOTA_CHKD	0x0004  /* quotacheck run on usr quotas */
+#define XFS_PQUOTA_ACCT	0x0008  /* (IRIX) project quota accounting ON */
+#define XFS_GQUOTA_ENFD	0x0010  /* group quota limits enforced */
+#define XFS_GQUOTA_CHKD	0x0020  /* quotacheck run on grp quotas */
+#define XFS_GQUOTA_ACCT	0x0040  /* group quota accounting ON */
+
+/*
+ * Incore only flags for quotaoff - these bits get cleared when quota(s)
+ * are in the process of getting turned off. These flags are in m_qflags but
+ * never in sb_qflags.
+ */
+#define XFS_UQUOTA_ACTIVE	0x0080  /* uquotas are being turned off */
+#define XFS_GQUOTA_ACTIVE	0x0100  /* gquotas are being turned off */
+
+/*
+ * Checking XFS_IS_*QUOTA_ON() while holding any inode lock guarantees
+ * quota will be not be switched off as long as that inode lock is held.
+ */
+#define XFS_IS_QUOTA_ON(mp)	((mp)->m_qflags & (XFS_UQUOTA_ACTIVE | \
+						   XFS_GQUOTA_ACTIVE))
+#define XFS_IS_UQUOTA_ON(mp)	((mp)->m_qflags & XFS_UQUOTA_ACTIVE)
+#define XFS_IS_GQUOTA_ON(mp)	((mp)->m_qflags & XFS_GQUOTA_ACTIVE)
+
+/*
+ * Flags to tell various functions what to do. Not all of these are meaningful
+ * to a single function. None of these XFS_QMOPT_* flags are meant to have
+ * persistent values (ie. their values can and will change between versions)
+ */
+#define XFS_QMOPT_DQLOCK	0x0000001 /* dqlock */
+#define XFS_QMOPT_DQALLOC	0x0000002 /* alloc dquot ondisk if needed */
+#define XFS_QMOPT_UQUOTA	0x0000004 /* user dquot requested */
+#define XFS_QMOPT_GQUOTA	0x0000008 /* group dquot requested */
+#define XFS_QMOPT_FORCE_RES	0x0000010 /* ignore quota limits */
+#define XFS_QMOPT_DQSUSER	0x0000020 /* don't cache super users dquot */
+#define XFS_QMOPT_SBVERSION	0x0000040 /* change superblock version num */
+#define XFS_QMOPT_QUOTAOFF	0x0000080 /* quotas are being turned off */
+#define XFS_QMOPT_UMOUNTING	0x0000100 /* filesys is being unmounted */
+#define XFS_QMOPT_DOLOG		0x0000200 /* log buf changes (in quotacheck) */
+#define XFS_QMOPT_DOWARN        0x0000400 /* increase warning cnt if necessary */
+#define XFS_QMOPT_ILOCKED	0x0000800 /* inode is already locked (excl) */
+#define XFS_QMOPT_DQREPAIR	0x0001000 /* repair dquot, if damaged. */
+
+/*
+ * flags to xfs_trans_mod_dquot to indicate which field needs to be
+ * modified.
+ */
+#define XFS_QMOPT_RES_REGBLKS	0x0010000
+#define XFS_QMOPT_RES_RTBLKS	0x0020000
+#define XFS_QMOPT_BCOUNT	0x0040000
+#define XFS_QMOPT_ICOUNT	0x0080000
+#define XFS_QMOPT_RTBCOUNT	0x0100000
+#define XFS_QMOPT_DELBCOUNT	0x0200000
+#define XFS_QMOPT_DELRTBCOUNT	0x0400000
+#define XFS_QMOPT_RES_INOS	0x0800000
+
+/*
+ * flags for dqflush and dqflush_all.
+ */
+#define XFS_QMOPT_SYNC		0x1000000
+#define XFS_QMOPT_ASYNC		0x2000000
+#define XFS_QMOPT_DELWRI	0x4000000
+
+/*
+ * flags for dqalloc.
+ */
+#define XFS_QMOPT_INHERIT	0x8000000
+
+/*
+ * flags to xfs_trans_mod_dquot.
+ */
+#define XFS_TRANS_DQ_RES_BLKS	XFS_QMOPT_RES_REGBLKS
+#define XFS_TRANS_DQ_RES_RTBLKS	XFS_QMOPT_RES_RTBLKS
+#define XFS_TRANS_DQ_RES_INOS	XFS_QMOPT_RES_INOS
+#define XFS_TRANS_DQ_BCOUNT	XFS_QMOPT_BCOUNT
+#define XFS_TRANS_DQ_DELBCOUNT	XFS_QMOPT_DELBCOUNT
+#define XFS_TRANS_DQ_ICOUNT	XFS_QMOPT_ICOUNT
+#define XFS_TRANS_DQ_RTBCOUNT	XFS_QMOPT_RTBCOUNT
+#define XFS_TRANS_DQ_DELRTBCOUNT XFS_QMOPT_DELRTBCOUNT
+
+
+#define XFS_QMOPT_QUOTALL	(XFS_QMOPT_UQUOTA|XFS_QMOPT_GQUOTA)
+#define XFS_QMOPT_RESBLK_MASK	(XFS_QMOPT_RES_REGBLKS | XFS_QMOPT_RES_RTBLKS)
+
+#ifdef __KERNEL__
+/*
+ * This check is done typically without holding the inode lock;
+ * that may seem racey, but it is harmless in the context that it is used.
+ * The inode cannot go inactive as long a reference is kept, and
+ * therefore if dquot(s) were attached, they'll stay consistent.
+ * If, for example, the ownership of the inode changes while
+ * we didn't have the inode locked, the appropriate dquot(s) will be
+ * attached atomically.
+ */
+#define XFS_NOT_DQATTACHED(mp, ip) ((XFS_IS_UQUOTA_ON(mp) &&\
+				     (ip)->i_udquot == NULL) || \
+				    (XFS_IS_GQUOTA_ON(mp) && \
+				     (ip)->i_gdquot == NULL))
+
+#define XFS_QM_NEED_QUOTACHECK(mp) ((XFS_IS_UQUOTA_ON(mp) && \
+				     (mp->m_sb.sb_qflags & \
+				      XFS_UQUOTA_CHKD) == 0) || \
+				    (XFS_IS_GQUOTA_ON(mp) && \
+				     (mp->m_sb.sb_qflags & \
+				      XFS_GQUOTA_CHKD) == 0))
+
+#define XFS_MOUNT_QUOTA_ALL	(XFS_UQUOTA_ACCT|XFS_UQUOTA_ENFD|\
+				 XFS_UQUOTA_CHKD|XFS_GQUOTA_ACCT|\
+				 XFS_GQUOTA_ENFD|XFS_GQUOTA_CHKD)
+#define XFS_MOUNT_QUOTA_MASK	(XFS_MOUNT_QUOTA_ALL | XFS_UQUOTA_ACTIVE | \
+				 XFS_GQUOTA_ACTIVE)
+
+
+/*
+ * The structure kept inside the xfs_trans_t keep track of dquot changes
+ * within a transaction and apply them later.
+ */
+typedef struct xfs_dqtrx {
+	struct xfs_dquot *qt_dquot;	  /* the dquot this refers to */
+	ulong		qt_blk_res;	  /* blks reserved on a dquot */
+	ulong		qt_blk_res_used;  /* blks used from the reservation */
+	ulong		qt_ino_res;	  /* inode reserved on a dquot */
+	ulong		qt_ino_res_used;  /* inodes used from the reservation */
+	long		qt_bcount_delta;  /* dquot blk count changes */
+	long		qt_delbcnt_delta; /* delayed dquot blk count changes */
+	long		qt_icount_delta;  /* dquot inode count changes */
+	ulong		qt_rtblk_res;	  /* # blks reserved on a dquot */
+	ulong		qt_rtblk_res_used;/* # blks used from reservation */
+	long		qt_rtbcount_delta;/* dquot realtime blk changes */
+	long		qt_delrtb_delta;  /* delayed RT blk count changes */
+} xfs_dqtrx_t;
+
+/*
+ * Dquot transaction functions, used if quota is enabled.
+ */
+typedef void	(*qo_dup_dqinfo_t)(struct xfs_trans *, struct xfs_trans *);
+typedef void	(*qo_mod_dquot_byino_t)(struct xfs_trans *,
+				struct xfs_inode *, uint, long);
+typedef void	(*qo_free_dqinfo_t)(struct xfs_trans *);
+typedef void	(*qo_apply_dquot_deltas_t)(struct xfs_trans *);
+typedef void	(*qo_unreserve_and_mod_dquots_t)(struct xfs_trans *);
+typedef int	(*qo_reserve_quota_nblks_t)(
+				struct xfs_trans *, struct xfs_mount *,
+				struct xfs_inode *, long, long, uint);
+typedef int	(*qo_reserve_quota_bydquots_t)(
+				struct xfs_trans *, struct xfs_mount *,
+				struct xfs_dquot *, struct xfs_dquot *,
+				long, long, uint);
+typedef struct xfs_dqtrxops {
+	qo_dup_dqinfo_t			qo_dup_dqinfo;
+	qo_free_dqinfo_t		qo_free_dqinfo;
+	qo_mod_dquot_byino_t		qo_mod_dquot_byino;
+	qo_apply_dquot_deltas_t		qo_apply_dquot_deltas;
+	qo_reserve_quota_nblks_t	qo_reserve_quota_nblks;
+	qo_reserve_quota_bydquots_t	qo_reserve_quota_bydquots;
+	qo_unreserve_and_mod_dquots_t	qo_unreserve_and_mod_dquots;
+} xfs_dqtrxops_t;
+
+#define XFS_DQTRXOP(mp, tp, op, args...) \
+		((mp)->m_qm_ops.xfs_dqtrxops ? \
+		((mp)->m_qm_ops.xfs_dqtrxops->op)(tp, ## args) : 0)
+
+#define XFS_DQTRXOP_VOID(mp, tp, op, args...) \
+		((mp)->m_qm_ops.xfs_dqtrxops ? \
+		((mp)->m_qm_ops.xfs_dqtrxops->op)(tp, ## args) : (void)0)
+
+#define XFS_TRANS_DUP_DQINFO(mp, otp, ntp) \
+	XFS_DQTRXOP_VOID(mp, otp, qo_dup_dqinfo, ntp)
+#define XFS_TRANS_FREE_DQINFO(mp, tp) \
+	XFS_DQTRXOP_VOID(mp, tp, qo_free_dqinfo)
+#define XFS_TRANS_MOD_DQUOT_BYINO(mp, tp, ip, field, delta) \
+	XFS_DQTRXOP_VOID(mp, tp, qo_mod_dquot_byino, ip, field, delta)
+#define XFS_TRANS_APPLY_DQUOT_DELTAS(mp, tp) \
+	XFS_DQTRXOP_VOID(mp, tp, qo_apply_dquot_deltas)
+#define XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, tp, ip, nblks, ninos, fl) \
+	XFS_DQTRXOP(mp, tp, qo_reserve_quota_nblks, mp, ip, nblks, ninos, fl)
+#define XFS_TRANS_RESERVE_QUOTA_BYDQUOTS(mp, tp, ud, gd, nb, ni, fl) \
+	XFS_DQTRXOP(mp, tp, qo_reserve_quota_bydquots, mp, ud, gd, nb, ni, fl)
+#define XFS_TRANS_UNRESERVE_AND_MOD_DQUOTS(mp, tp) \
+	XFS_DQTRXOP_VOID(mp, tp, qo_unreserve_and_mod_dquots)
+
+#define XFS_TRANS_RESERVE_BLKQUOTA(mp, tp, ip, nblks) \
+	XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, tp, ip, nblks, 0, \
+				XFS_QMOPT_RES_REGBLKS)
+#define XFS_TRANS_RESERVE_BLKQUOTA_FORCE(mp, tp, ip, nblks) \
+	XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, tp, ip, nblks, 0, \
+				XFS_QMOPT_RES_REGBLKS | XFS_QMOPT_FORCE_RES)
+#define XFS_TRANS_UNRESERVE_BLKQUOTA(mp, tp, ip, nblks) \
+	XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, tp, ip, -(nblks), 0, \
+				XFS_QMOPT_RES_REGBLKS)
+#define XFS_TRANS_RESERVE_QUOTA(mp, tp, ud, gd, nb, ni, f) \
+	XFS_TRANS_RESERVE_QUOTA_BYDQUOTS(mp, tp, ud, gd, nb, ni, \
+				f | XFS_QMOPT_RES_REGBLKS)
+#define XFS_TRANS_UNRESERVE_QUOTA(mp, tp, ud, gd, nb, ni, f) \
+	XFS_TRANS_RESERVE_QUOTA_BYDQUOTS(mp, tp, ud, gd, -(nb), -(ni), \
+				f | XFS_QMOPT_RES_REGBLKS)
+
+extern int xfs_qm_dqcheck(xfs_disk_dquot_t *, xfs_dqid_t, uint, uint, char *);
+
+extern struct bhv_vfsops xfs_qmops;
+
+#endif	/* __KERNEL__ */
+
+#endif	/* __XFS_QUOTA_H__ */
diff --git a/fs/xfs/xfs_refcache.c b/fs/xfs/xfs_refcache.c
new file mode 100644
index 00000000000000..e68febadaf2da6
--- /dev/null
+++ b/fs/xfs/xfs_refcache.c
@@ -0,0 +1,439 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_itable.h"
+#include "xfs_btree.h"
+#include "xfs_alloc.h"
+#include "xfs_ialloc.h"
+#include "xfs_attr.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode_item.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_error.h"
+#include "xfs_buf_item.h"
+#include "xfs_refcache.h"
+
+STATIC spinlock_t	xfs_refcache_lock = SPIN_LOCK_UNLOCKED;
+STATIC xfs_inode_t	**xfs_refcache;
+STATIC int		xfs_refcache_index;
+STATIC int		xfs_refcache_busy;
+STATIC int		xfs_refcache_count;
+
+/*
+ * Insert the given inode into the reference cache.
+ */
+void
+xfs_refcache_insert(
+	xfs_inode_t	*ip)
+{
+	vnode_t		*vp;
+	xfs_inode_t	*release_ip;
+	xfs_inode_t	**refcache;
+
+	ASSERT(ismrlocked(&(ip->i_iolock), MR_UPDATE));
+
+	/*
+	 * If an unmount is busy blowing entries out of the cache,
+	 * then don't bother.
+	 */
+	if (xfs_refcache_busy) {
+		return;
+	}
+
+	/*
+	 * If we tuned the refcache down to zero, don't do anything.
+	 */
+	 if (!xfs_refcache_size) {
+		return;
+	}
+
+	/*
+	 * The inode is already in the refcache, so don't bother
+	 * with it.
+	 */
+	if (ip->i_refcache != NULL) {
+		return;
+	}
+
+	vp = XFS_ITOV(ip);
+	/* ASSERT(vp->v_count > 0); */
+	VN_HOLD(vp);
+
+	/*
+	 * We allocate the reference cache on use so that we don't
+	 * waste the memory on systems not being used as NFS servers.
+	 */
+	if (xfs_refcache == NULL) {
+		refcache = (xfs_inode_t **)kmem_zalloc(XFS_REFCACHE_SIZE_MAX *
+						       sizeof(xfs_inode_t *),
+						       KM_SLEEP);
+	} else {
+		refcache = NULL;
+	}
+
+	spin_lock(&xfs_refcache_lock);
+
+	/*
+	 * If we allocated memory for the refcache above and it still
+	 * needs it, then use the memory we allocated.  Otherwise we'll
+	 * free the memory below.
+	 */
+	if (refcache != NULL) {
+		if (xfs_refcache == NULL) {
+			xfs_refcache = refcache;
+			refcache = NULL;
+		}
+	}
+
+	/*
+	 * If an unmount is busy clearing out the cache, don't add new
+	 * entries to it.
+	 */
+	if (xfs_refcache_busy) {
+		spin_unlock(&xfs_refcache_lock);
+		VN_RELE(vp);
+		/*
+		 * If we allocated memory for the refcache above but someone
+		 * else beat us to using it, then free the memory now.
+		 */
+		if (refcache != NULL) {
+			kmem_free(refcache,
+				  XFS_REFCACHE_SIZE_MAX * sizeof(xfs_inode_t *));
+		}
+		return;
+	}
+	release_ip = xfs_refcache[xfs_refcache_index];
+	if (release_ip != NULL) {
+		release_ip->i_refcache = NULL;
+		xfs_refcache_count--;
+		ASSERT(xfs_refcache_count >= 0);
+	}
+	xfs_refcache[xfs_refcache_index] = ip;
+	ASSERT(ip->i_refcache == NULL);
+	ip->i_refcache = &(xfs_refcache[xfs_refcache_index]);
+	xfs_refcache_count++;
+	ASSERT(xfs_refcache_count <= xfs_refcache_size);
+	xfs_refcache_index++;
+	if (xfs_refcache_index == xfs_refcache_size) {
+		xfs_refcache_index = 0;
+	}
+	spin_unlock(&xfs_refcache_lock);
+
+	/*
+	 * Save the pointer to the inode to be released so that we can
+	 * VN_RELE it once we've dropped our inode locks in xfs_rwunlock().
+	 * The pointer may be NULL, but that's OK.
+	 */
+	ip->i_release = release_ip;
+
+	/*
+	 * If we allocated memory for the refcache above but someone
+	 * else beat us to using it, then free the memory now.
+	 */
+	if (refcache != NULL) {
+		kmem_free(refcache,
+			  XFS_REFCACHE_SIZE_MAX * sizeof(xfs_inode_t *));
+	}
+}
+
+
+/*
+ * If the given inode is in the reference cache, purge its entry and
+ * release the reference on the vnode.
+ */
+void
+xfs_refcache_purge_ip(
+	xfs_inode_t	*ip)
+{
+	vnode_t	*vp;
+	int	error;
+
+	/*
+	 * If we're not pointing to our entry in the cache, then
+	 * we must not be in the cache.
+	 */
+	if (ip->i_refcache == NULL) {
+		return;
+	}
+
+	spin_lock(&xfs_refcache_lock);
+	if (ip->i_refcache == NULL) {
+		spin_unlock(&xfs_refcache_lock);
+		return;
+	}
+
+	/*
+	 * Clear both our pointer to the cache entry and its pointer
+	 * back to us.
+	 */
+	ASSERT(*(ip->i_refcache) == ip);
+	*(ip->i_refcache) = NULL;
+	ip->i_refcache = NULL;
+	xfs_refcache_count--;
+	ASSERT(xfs_refcache_count >= 0);
+	spin_unlock(&xfs_refcache_lock);
+
+	vp = XFS_ITOV(ip);
+	/* ASSERT(vp->v_count > 1); */
+	VOP_RELEASE(vp, error);
+	VN_RELE(vp);
+}
+
+
+/*
+ * This is called from the XFS unmount code to purge all entries for the
+ * given mount from the cache.  It uses the refcache busy counter to
+ * make sure that new entries are not added to the cache as we purge them.
+ */
+void
+xfs_refcache_purge_mp(
+	xfs_mount_t	*mp)
+{
+	vnode_t		*vp;
+	int		error, i;
+	xfs_inode_t	*ip;
+
+	if (xfs_refcache == NULL) {
+		return;
+	}
+
+	spin_lock(&xfs_refcache_lock);
+	/*
+	 * Bumping the busy counter keeps new entries from being added
+	 * to the cache.  We use a counter since multiple unmounts could
+	 * be in here simultaneously.
+	 */
+	xfs_refcache_busy++;
+
+	for (i = 0; i < xfs_refcache_size; i++) {
+		ip = xfs_refcache[i];
+		if ((ip != NULL) && (ip->i_mount == mp)) {
+			xfs_refcache[i] = NULL;
+			ip->i_refcache = NULL;
+			xfs_refcache_count--;
+			ASSERT(xfs_refcache_count >= 0);
+			spin_unlock(&xfs_refcache_lock);
+			vp = XFS_ITOV(ip);
+			VOP_RELEASE(vp, error);
+			VN_RELE(vp);
+			spin_lock(&xfs_refcache_lock);
+		}
+	}
+
+	xfs_refcache_busy--;
+	ASSERT(xfs_refcache_busy >= 0);
+	spin_unlock(&xfs_refcache_lock);
+}
+
+
+/*
+ * This is called from the XFS sync code to ensure that the refcache
+ * is emptied out over time.  We purge a small number of entries with
+ * each call.
+ */
+void
+xfs_refcache_purge_some(xfs_mount_t *mp)
+{
+	int		error, i;
+	xfs_inode_t	*ip;
+	int		iplist_index;
+	xfs_inode_t	**iplist;
+
+	if ((xfs_refcache == NULL) || (xfs_refcache_count == 0)) {
+		return;
+	}
+
+	iplist_index = 0;
+	iplist = (xfs_inode_t **)kmem_zalloc(xfs_refcache_purge_count *
+					  sizeof(xfs_inode_t *), KM_SLEEP);
+
+	spin_lock(&xfs_refcache_lock);
+
+	/*
+	 * Store any inodes we find in the next several entries
+	 * into the iplist array to be released after dropping
+	 * the spinlock.  We always start looking from the currently
+	 * oldest place in the cache.  We move the refcache index
+	 * forward as we go so that we are sure to eventually clear
+	 * out the entire cache when the system goes idle.
+	 */
+	for (i = 0; i < xfs_refcache_purge_count; i++) {
+		ip = xfs_refcache[xfs_refcache_index];
+		if (ip != NULL) {
+			xfs_refcache[xfs_refcache_index] = NULL;
+			ip->i_refcache = NULL;
+			xfs_refcache_count--;
+			ASSERT(xfs_refcache_count >= 0);
+			iplist[iplist_index] = ip;
+			iplist_index++;
+		}
+		xfs_refcache_index++;
+		if (xfs_refcache_index == xfs_refcache_size) {
+			xfs_refcache_index = 0;
+		}
+	}
+
+	spin_unlock(&xfs_refcache_lock);
+
+	/*
+	 * Now drop the inodes we collected.
+	 */
+	for (i = 0; i < iplist_index; i++) {
+		VOP_RELEASE(XFS_ITOV(iplist[i]), error);
+		VN_RELE(XFS_ITOV(iplist[i]));
+	}
+
+	kmem_free(iplist, xfs_refcache_purge_count *
+			  sizeof(xfs_inode_t *));
+}
+
+/*
+ * This is called when the refcache is dynamically resized
+ * via a sysctl.
+ *
+ * If the new size is smaller than the old size, purge all
+ * entries in slots greater than the new size, and move
+ * the index if necessary.
+ *
+ * If the refcache hasn't even been allocated yet, or the
+ * new size is larger than the old size, just set the value
+ * of xfs_refcache_size.
+ */
+
+void
+xfs_refcache_resize(int xfs_refcache_new_size)
+{
+	int		i;
+	xfs_inode_t	*ip;
+	int		iplist_index = 0;
+	xfs_inode_t	**iplist;
+	int		error;
+
+	/*
+	 * If the new size is smaller than the current size,
+	 * purge entries to create smaller cache, and
+	 * reposition index if necessary.
+	 * Don't bother if no refcache yet.
+	 */
+	if (xfs_refcache && (xfs_refcache_new_size < xfs_refcache_size)) {
+
+		iplist = (xfs_inode_t **)kmem_zalloc(XFS_REFCACHE_SIZE_MAX *
+				sizeof(xfs_inode_t *), KM_SLEEP);
+
+		spin_lock(&xfs_refcache_lock);
+
+		for (i = xfs_refcache_new_size; i < xfs_refcache_size; i++) {
+			ip = xfs_refcache[i];
+			if (ip != NULL) {
+				xfs_refcache[i] = NULL;
+				ip->i_refcache = NULL;
+				xfs_refcache_count--;
+				ASSERT(xfs_refcache_count >= 0);
+				iplist[iplist_index] = ip;
+				iplist_index++;
+			}
+		}
+
+		xfs_refcache_size = xfs_refcache_new_size;
+
+		/*
+		 * Move index to beginning of cache if it's now past the end
+		 */
+		if (xfs_refcache_index >= xfs_refcache_new_size)
+			xfs_refcache_index = 0;
+
+		spin_unlock(&xfs_refcache_lock);
+
+		/*
+		 * Now drop the inodes we collected.
+		 */
+		for (i = 0; i < iplist_index; i++) {
+			VOP_RELEASE(XFS_ITOV(iplist[i]), error);
+			VN_RELE(XFS_ITOV(iplist[i]));
+		}
+
+		kmem_free(iplist, XFS_REFCACHE_SIZE_MAX *
+				  sizeof(xfs_inode_t *));
+	} else {
+		spin_lock(&xfs_refcache_lock);
+		xfs_refcache_size = xfs_refcache_new_size;
+		spin_unlock(&xfs_refcache_lock);
+	}
+}
+
+void
+xfs_refcache_iunlock(
+	xfs_inode_t	*ip,
+	uint		lock_flags)
+{
+	xfs_inode_t	*release_ip;
+	int		error;
+
+	release_ip = ip->i_release;
+	ip->i_release = NULL;
+
+	xfs_iunlock(ip, lock_flags);
+
+	if (release_ip != NULL) {
+		VOP_RELEASE(XFS_ITOV(release_ip), error);
+		VN_RELE(XFS_ITOV(release_ip));
+	}
+}
+
+void
+xfs_refcache_destroy(void)
+{
+	if (xfs_refcache) {
+		kmem_free(xfs_refcache,
+			XFS_REFCACHE_SIZE_MAX * sizeof(xfs_inode_t *));
+		xfs_refcache = NULL;
+	}
+}
diff --git a/fs/xfs/xfs_refcache.h b/fs/xfs/xfs_refcache.h
new file mode 100644
index 00000000000000..cd8ddfd35d6943
--- /dev/null
+++ b/fs/xfs/xfs_refcache.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_REFCACHE_H__
+#define __XFS_REFCACHE_H__
+
+#ifdef HAVE_REFCACHE
+/*
+ * Maximum size (in inodes) for the NFS reference cache
+ */
+#define XFS_REFCACHE_SIZE_MAX	512
+
+struct xfs_inode;
+struct xfs_mount;
+
+extern void xfs_refcache_insert(struct xfs_inode *);
+extern void xfs_refcache_purge_ip(struct xfs_inode *);
+extern void xfs_refcache_purge_mp(struct xfs_mount *);
+extern void xfs_refcache_purge_some(struct xfs_mount *);
+extern void xfs_refcache_resize(int);
+extern void xfs_refcache_destroy(void);
+
+extern void xfs_refcache_iunlock(struct xfs_inode *, uint);
+
+#else
+
+#define xfs_refcache_insert(ip)		do { } while (0)
+#define xfs_refcache_purge_ip(ip)	do { } while (0)
+#define xfs_refcache_purge_mp(mp)	do { } while (0)
+#define xfs_refcache_purge_some(mp)	do { } while (0)
+#define xfs_refcache_resize(size)	do { } while (0)
+#define xfs_refcache_destroy()		do { } while (0)
+
+#define xfs_refcache_iunlock(ip, flags)	xfs_iunlock(ip, flags)
+
+#endif
+
+#endif	/* __XFS_REFCACHE_H__ */
diff --git a/fs/xfs/xfs_rename.c b/fs/xfs/xfs_rename.c
new file mode 100644
index 00000000000000..876f6908212e6e
--- /dev/null
+++ b/fs/xfs/xfs_rename.c
@@ -0,0 +1,673 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode_item.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_error.h"
+#include "xfs_quota.h"
+#include "xfs_refcache.h"
+#include "xfs_utils.h"
+#include "xfs_trans_space.h"
+#include "xfs_da_btree.h"
+#include "xfs_dir_leaf.h"
+
+
+/*
+ * Given an array of up to 4 inode pointers, unlock the pointed to inodes.
+ * If there are fewer than 4 entries in the array, the empty entries will
+ * be at the end and will have NULL pointers in them.
+ */
+STATIC void
+xfs_rename_unlock4(
+	xfs_inode_t	**i_tab,
+	uint		lock_mode)
+{
+	int	i;
+
+	xfs_iunlock(i_tab[0], lock_mode);
+	for (i = 1; i < 4; i++) {
+		if (i_tab[i] == NULL) {
+			break;
+		}
+		/*
+		 * Watch out for duplicate entries in the table.
+		 */
+		if (i_tab[i] != i_tab[i-1]) {
+			xfs_iunlock(i_tab[i], lock_mode);
+		}
+	}
+}
+
+#ifdef DEBUG
+int xfs_rename_skip, xfs_rename_nskip;
+#endif
+
+/*
+ * The following routine will acquire the locks required for a rename
+ * operation. The code understands the semantics of renames and will
+ * validate that name1 exists under dp1 & that name2 may or may not
+ * exist under dp2.
+ *
+ * We are renaming dp1/name1 to dp2/name2.
+ *
+ * Return ENOENT if dp1 does not exist, other lookup errors, or 0 for success.
+ */
+STATIC int
+xfs_lock_for_rename(
+	xfs_inode_t	*dp1,	/* old (source) directory inode */
+	xfs_inode_t	*dp2,	/* new (target) directory inode */
+	vname_t		*vname1,/* old entry name */
+	vname_t		*vname2,/* new entry name */
+	xfs_inode_t	**ipp1,	/* inode of old entry */
+	xfs_inode_t	**ipp2,	/* inode of new entry, if it
+				   already exists, NULL otherwise. */
+	xfs_inode_t	**i_tab,/* array of inode returned, sorted */
+	int		*num_inodes)  /* number of inodes in array */
+{
+	xfs_inode_t		*ip1, *ip2, *temp;
+	xfs_ino_t		inum1, inum2;
+	int			error;
+	int			i, j;
+	uint			lock_mode;
+	int			diff_dirs = (dp1 != dp2);
+
+	ip2 = NULL;
+
+	/*
+	 * First, find out the current inums of the entries so that we
+	 * can determine the initial locking order.  We'll have to
+	 * sanity check stuff after all the locks have been acquired
+	 * to see if we still have the right inodes, directories, etc.
+	 */
+	lock_mode = xfs_ilock_map_shared(dp1);
+	error = xfs_get_dir_entry(vname1, &ip1);
+	if (error) {
+		xfs_iunlock_map_shared(dp1, lock_mode);
+		return error;
+	}
+
+	inum1 = ip1->i_ino;
+
+	ASSERT(ip1);
+	ITRACE(ip1);
+
+	/*
+	 * Unlock dp1 and lock dp2 if they are different.
+	 */
+
+	if (diff_dirs) {
+		xfs_iunlock_map_shared(dp1, lock_mode);
+		lock_mode = xfs_ilock_map_shared(dp2);
+	}
+
+	error = xfs_dir_lookup_int(XFS_ITOBHV(dp2), lock_mode,
+				   vname2, &inum2, &ip2);
+	if (error == ENOENT) {		/* target does not need to exist. */
+		inum2 = 0;
+	} else if (error) {
+		/*
+		 * If dp2 and dp1 are the same, the next line unlocks dp1.
+		 * Got it?
+		 */
+		xfs_iunlock_map_shared(dp2, lock_mode);
+		IRELE (ip1);
+		return error;
+	} else {
+		ITRACE(ip2);
+	}
+
+	/*
+	 * i_tab contains a list of pointers to inodes.  We initialize
+	 * the table here & we'll sort it.  We will then use it to
+	 * order the acquisition of the inode locks.
+	 *
+	 * Note that the table may contain duplicates.  e.g., dp1 == dp2.
+	 */
+	i_tab[0] = dp1;
+	i_tab[1] = dp2;
+	i_tab[2] = ip1;
+	if (inum2 == 0) {
+		*num_inodes = 3;
+		i_tab[3] = NULL;
+	} else {
+		*num_inodes = 4;
+		i_tab[3] = ip2;
+	}
+
+	/*
+	 * Sort the elements via bubble sort.  (Remember, there are at
+	 * most 4 elements to sort, so this is adequate.)
+	 */
+	for (i=0; i < *num_inodes; i++) {
+		for (j=1; j < *num_inodes; j++) {
+			if (i_tab[j]->i_ino < i_tab[j-1]->i_ino) {
+				temp = i_tab[j];
+				i_tab[j] = i_tab[j-1];
+				i_tab[j-1] = temp;
+			}
+		}
+	}
+
+	/*
+	 * We have dp2 locked. If it isn't first, unlock it.
+	 * If it is first, tell xfs_lock_inodes so it can skip it
+	 * when locking. if dp1 == dp2, xfs_lock_inodes will skip both
+	 * since they are equal. xfs_lock_inodes needs all these inodes
+	 * so that it can unlock and retry if there might be a dead-lock
+	 * potential with the log.
+	 */
+
+	if (i_tab[0] == dp2 && lock_mode == XFS_ILOCK_SHARED) {
+#ifdef DEBUG
+		xfs_rename_skip++;
+#endif
+		xfs_lock_inodes(i_tab, *num_inodes, 1, XFS_ILOCK_SHARED);
+	} else {
+#ifdef DEBUG
+		xfs_rename_nskip++;
+#endif
+		xfs_iunlock_map_shared(dp2, lock_mode);
+		xfs_lock_inodes(i_tab, *num_inodes, 0, XFS_ILOCK_SHARED);
+	}
+
+	/*
+	 * Set the return value. Null out any unused entries in i_tab.
+	 */
+	*ipp1 = *ipp2 = NULL;
+	for (i=0; i < *num_inodes; i++) {
+		if (i_tab[i]->i_ino == inum1) {
+			*ipp1 = i_tab[i];
+		}
+		if (i_tab[i]->i_ino == inum2) {
+			*ipp2 = i_tab[i];
+		}
+	}
+	for (;i < 4; i++) {
+		i_tab[i] = NULL;
+	}
+	return 0;
+}
+
+
+int rename_which_error_return = 0;
+
+/*
+ * xfs_rename
+ */
+int
+xfs_rename(
+	bhv_desc_t	*src_dir_bdp,
+	vname_t		*src_vname,
+	vnode_t		*target_dir_vp,
+	vname_t		*target_vname,
+	cred_t		*credp)
+{
+	xfs_trans_t	*tp;
+	xfs_inode_t	*src_dp, *target_dp, *src_ip, *target_ip;
+	xfs_mount_t	*mp;
+	int		new_parent;		/* moving to a new dir */
+	int		src_is_directory;	/* src_name is a directory */
+	int		error;
+	xfs_bmap_free_t free_list;
+	xfs_fsblock_t   first_block;
+	int		cancel_flags;
+	int		committed;
+	xfs_inode_t	*inodes[4];
+	int		target_ip_dropped = 0;	/* dropped target_ip link? */
+	vnode_t		*src_dir_vp;
+	bhv_desc_t	*target_dir_bdp;
+	int		spaceres;
+	int		target_link_zero = 0;
+	int		num_inodes;
+	char		*src_name = VNAME(src_vname);
+	char		*target_name = VNAME(target_vname);
+	int		src_namelen = VNAMELEN(src_vname);
+	int		target_namelen = VNAMELEN(target_vname);
+
+	src_dir_vp = BHV_TO_VNODE(src_dir_bdp);
+	vn_trace_entry(src_dir_vp, "xfs_rename", (inst_t *)__return_address);
+	vn_trace_entry(target_dir_vp, "xfs_rename", (inst_t *)__return_address);
+
+	/*
+	 * Find the XFS behavior descriptor for the target directory
+	 * vnode since it was not handed to us.
+	 */
+	target_dir_bdp = vn_bhv_lookup_unlocked(VN_BHV_HEAD(target_dir_vp),
+						&xfs_vnodeops);
+	if (target_dir_bdp == NULL) {
+		return XFS_ERROR(EXDEV);
+	}
+
+	src_dp = XFS_BHVTOI(src_dir_bdp);
+	target_dp = XFS_BHVTOI(target_dir_bdp);
+	mp = src_dp->i_mount;
+
+	if (DM_EVENT_ENABLED(src_dir_vp->v_vfsp, src_dp, DM_EVENT_RENAME) ||
+	    DM_EVENT_ENABLED(target_dir_vp->v_vfsp,
+				target_dp, DM_EVENT_RENAME)) {
+		error = XFS_SEND_NAMESP(mp, DM_EVENT_RENAME,
+					src_dir_vp, DM_RIGHT_NULL,
+					target_dir_vp, DM_RIGHT_NULL,
+					src_name, target_name,
+					0, 0, 0);
+		if (error) {
+			return error;
+		}
+	}
+	/* Return through std_return after this point. */
+
+	/*
+	 * Lock all the participating inodes. Depending upon whether
+	 * the target_name exists in the target directory, and
+	 * whether the target directory is the same as the source
+	 * directory, we can lock from 2 to 4 inodes.
+	 * xfs_lock_for_rename() will return ENOENT if src_name
+	 * does not exist in the source directory.
+	 */
+	tp = NULL;
+	error = xfs_lock_for_rename(src_dp, target_dp, src_vname,
+			target_vname, &src_ip, &target_ip, inodes,
+			&num_inodes);
+
+	if (error) {
+		rename_which_error_return = __LINE__;
+		/*
+		 * We have nothing locked, no inode references, and
+		 * no transaction, so just get out.
+		 */
+		goto std_return;
+	}
+
+	ASSERT(src_ip != NULL);
+
+	if ((src_ip->i_d.di_mode & S_IFMT) == S_IFDIR) {
+		/*
+		 * Check for link count overflow on target_dp
+		 */
+		if (target_ip == NULL && (src_dp != target_dp) &&
+		    target_dp->i_d.di_nlink >= XFS_MAXLINK) {
+			rename_which_error_return = __LINE__;
+			error = XFS_ERROR(EMLINK);
+			xfs_rename_unlock4(inodes, XFS_ILOCK_SHARED);
+			goto rele_return;
+		}
+	}
+
+	new_parent = (src_dp != target_dp);
+	src_is_directory = ((src_ip->i_d.di_mode & S_IFMT) == S_IFDIR);
+
+	/*
+	 * Drop the locks on our inodes so that we can start the transaction.
+	 */
+	xfs_rename_unlock4(inodes, XFS_ILOCK_SHARED);
+
+	XFS_BMAP_INIT(&free_list, &first_block);
+	tp = xfs_trans_alloc(mp, XFS_TRANS_RENAME);
+	cancel_flags = XFS_TRANS_RELEASE_LOG_RES;
+	spaceres = XFS_RENAME_SPACE_RES(mp, target_namelen);
+	error = xfs_trans_reserve(tp, spaceres, XFS_RENAME_LOG_RES(mp), 0,
+			XFS_TRANS_PERM_LOG_RES, XFS_RENAME_LOG_COUNT);
+	if (error == ENOSPC) {
+		spaceres = 0;
+		error = xfs_trans_reserve(tp, 0, XFS_RENAME_LOG_RES(mp), 0,
+				XFS_TRANS_PERM_LOG_RES, XFS_RENAME_LOG_COUNT);
+	}
+	if (error) {
+		rename_which_error_return = __LINE__;
+		xfs_trans_cancel(tp, 0);
+		goto rele_return;
+	}
+
+	/*
+	 * Attach the dquots to the inodes
+	 */
+	if ((error = XFS_QM_DQVOPRENAME(mp, inodes))) {
+		xfs_trans_cancel(tp, cancel_flags);
+		rename_which_error_return = __LINE__;
+		goto rele_return;
+	}
+
+	/*
+	 * Reacquire the inode locks we dropped above.
+	 */
+	xfs_lock_inodes(inodes, num_inodes, 0, XFS_ILOCK_EXCL);
+
+	/*
+	 * Join all the inodes to the transaction. From this point on,
+	 * we can rely on either trans_commit or trans_cancel to unlock
+	 * them.  Note that we need to add a vnode reference to the
+	 * directories since trans_commit & trans_cancel will decrement
+	 * them when they unlock the inodes.  Also, we need to be careful
+	 * not to add an inode to the transaction more than once.
+	 */
+	VN_HOLD(src_dir_vp);
+	xfs_trans_ijoin(tp, src_dp, XFS_ILOCK_EXCL);
+	if (new_parent) {
+		VN_HOLD(target_dir_vp);
+		xfs_trans_ijoin(tp, target_dp, XFS_ILOCK_EXCL);
+	}
+	if ((src_ip != src_dp) && (src_ip != target_dp)) {
+		xfs_trans_ijoin(tp, src_ip, XFS_ILOCK_EXCL);
+	}
+	if ((target_ip != NULL) &&
+	    (target_ip != src_ip) &&
+	    (target_ip != src_dp) &&
+	    (target_ip != target_dp)) {
+		xfs_trans_ijoin(tp, target_ip, XFS_ILOCK_EXCL);
+	}
+
+	/*
+	 * Set up the target.
+	 */
+	if (target_ip == NULL) {
+		/*
+		 * If there's no space reservation, check the entry will
+		 * fit before actually inserting it.
+		 */
+		if (spaceres == 0 &&
+		    (error = XFS_DIR_CANENTER(mp, tp, target_dp, target_name,
+				target_namelen))) {
+			rename_which_error_return = __LINE__;
+			goto error_return;
+		}
+		/*
+		 * If target does not exist and the rename crosses
+		 * directories, adjust the target directory link count
+		 * to account for the ".." reference from the new entry.
+		 */
+		error = XFS_DIR_CREATENAME(mp, tp, target_dp, target_name,
+					   target_namelen, src_ip->i_ino,
+					   &first_block, &free_list, spaceres);
+		if (error == ENOSPC) {
+			rename_which_error_return = __LINE__;
+			goto error_return;
+		}
+		if (error) {
+			rename_which_error_return = __LINE__;
+			goto abort_return;
+		}
+		xfs_ichgtime(target_dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+
+		if (new_parent && src_is_directory) {
+			error = xfs_bumplink(tp, target_dp);
+			if (error) {
+				rename_which_error_return = __LINE__;
+				goto abort_return;
+			}
+		}
+	} else { /* target_ip != NULL */
+
+		/*
+		 * If target exists and it's a directory, check that both
+		 * target and source are directories and that target can be
+		 * destroyed, or that neither is a directory.
+		 */
+		if ((target_ip->i_d.di_mode & S_IFMT) == S_IFDIR) {
+			/*
+			 * Make sure target dir is empty.
+			 */
+			if (!(XFS_DIR_ISEMPTY(target_ip->i_mount, target_ip)) ||
+			    (target_ip->i_d.di_nlink > 2)) {
+				error = XFS_ERROR(EEXIST);
+				rename_which_error_return = __LINE__;
+				goto error_return;
+			}
+		}
+
+		/*
+		 * Link the source inode under the target name.
+		 * If the source inode is a directory and we are moving
+		 * it across directories, its ".." entry will be
+		 * inconsistent until we replace that down below.
+		 *
+		 * In case there is already an entry with the same
+		 * name at the destination directory, remove it first.
+		 */
+		error = XFS_DIR_REPLACE(mp, tp, target_dp, target_name,
+			target_namelen, src_ip->i_ino, &first_block,
+			&free_list, spaceres);
+		if (error) {
+			rename_which_error_return = __LINE__;
+			goto abort_return;
+		}
+		xfs_ichgtime(target_dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+
+		/*
+		 * Decrement the link count on the target since the target
+		 * dir no longer points to it.
+		 */
+		error = xfs_droplink(tp, target_ip);
+		if (error) {
+			rename_which_error_return = __LINE__;
+			goto abort_return;
+		}
+		target_ip_dropped = 1;
+
+		if (src_is_directory) {
+			/*
+			 * Drop the link from the old "." entry.
+			 */
+			error = xfs_droplink(tp, target_ip);
+			if (error) {
+				rename_which_error_return = __LINE__;
+				goto abort_return;
+			}
+		}
+
+		/* Do this test while we still hold the locks */
+		target_link_zero = (target_ip)->i_d.di_nlink==0;
+
+	} /* target_ip != NULL */
+
+	/*
+	 * Remove the source.
+	 */
+	if (new_parent && src_is_directory) {
+
+		/*
+		 * Rewrite the ".." entry to point to the new
+		 * directory.
+		 */
+		error = XFS_DIR_REPLACE(mp, tp, src_ip, "..", 2,
+					target_dp->i_ino, &first_block,
+					&free_list, spaceres);
+		ASSERT(error != EEXIST);
+		if (error) {
+			rename_which_error_return = __LINE__;
+			goto abort_return;
+		}
+		xfs_ichgtime(src_ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+
+	} else {
+		/*
+		 * We always want to hit the ctime on the source inode.
+		 * We do it in the if clause above for the 'new_parent &&
+		 * src_is_directory' case, and here we get all the other
+		 * cases.  This isn't strictly required by the standards
+		 * since the source inode isn't really being changed,
+		 * but old unix file systems did it and some incremental
+		 * backup programs won't work without it.
+		 */
+		xfs_ichgtime(src_ip, XFS_ICHGTIME_CHG);
+	}
+
+	/*
+	 * Adjust the link count on src_dp.  This is necessary when
+	 * renaming a directory, either within one parent when
+	 * the target existed, or across two parent directories.
+	 */
+	if (src_is_directory && (new_parent || target_ip != NULL)) {
+
+		/*
+		 * Decrement link count on src_directory since the
+		 * entry that's moved no longer points to it.
+		 */
+		error = xfs_droplink(tp, src_dp);
+		if (error) {
+			rename_which_error_return = __LINE__;
+			goto abort_return;
+		}
+	}
+
+	error = XFS_DIR_REMOVENAME(mp, tp, src_dp, src_name, src_namelen,
+			src_ip->i_ino, &first_block, &free_list, spaceres);
+	if (error) {
+		rename_which_error_return = __LINE__;
+		goto abort_return;
+	}
+	xfs_ichgtime(src_dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+
+	/*
+	 * Update the generation counts on all the directory inodes
+	 * that we're modifying.
+	 */
+	src_dp->i_gen++;
+	xfs_trans_log_inode(tp, src_dp, XFS_ILOG_CORE);
+
+	if (new_parent) {
+		target_dp->i_gen++;
+		xfs_trans_log_inode(tp, target_dp, XFS_ILOG_CORE);
+	}
+
+	/*
+	 * If there was a target inode, take an extra reference on
+	 * it here so that it doesn't go to xfs_inactive() from
+	 * within the commit.
+	 */
+	if (target_ip != NULL) {
+		IHOLD(target_ip);
+	}
+
+	/*
+	 * If this is a synchronous mount, make sure that the
+	 * rename transaction goes to disk before returning to
+	 * the user.
+	 */
+	if (mp->m_flags & XFS_MOUNT_WSYNC) {
+		xfs_trans_set_sync(tp);
+	}
+
+	/*
+	 * Take refs. for vop_link_removed calls below.  No need to worry
+	 * about directory refs. because the caller holds them.
+	 *
+	 * Do holds before the xfs_bmap_finish since it might rele them down
+	 * to zero.
+	 */
+
+	if (target_ip_dropped)
+		IHOLD(target_ip);
+	IHOLD(src_ip);
+
+	error = xfs_bmap_finish(&tp, &free_list, first_block, &committed);
+	if (error) {
+		xfs_bmap_cancel(&free_list);
+		xfs_trans_cancel(tp, (XFS_TRANS_RELEASE_LOG_RES |
+				 XFS_TRANS_ABORT));
+		if (target_ip != NULL) {
+			IRELE(target_ip);
+		}
+		if (target_ip_dropped) {
+			IRELE(target_ip);
+		}
+		IRELE(src_ip);
+		goto std_return;
+	}
+
+	/*
+	 * trans_commit will unlock src_ip, target_ip & decrement
+	 * the vnode references.
+	 */
+	error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES, NULL);
+	if (target_ip != NULL) {
+		xfs_refcache_purge_ip(target_ip);
+		IRELE(target_ip);
+	}
+	/*
+	 * Let interposed file systems know about removed links.
+	 */
+	if (target_ip_dropped) {
+		VOP_LINK_REMOVED(XFS_ITOV(target_ip), target_dir_vp,
+					target_link_zero);
+		IRELE(target_ip);
+	}
+
+	FSC_NOTIFY_NAME_CHANGED(XFS_ITOV(src_ip));
+
+	IRELE(src_ip);
+
+	/* Fall through to std_return with error = 0 or errno from
+	 * xfs_trans_commit	 */
+std_return:
+	if (DM_EVENT_ENABLED(src_dir_vp->v_vfsp, src_dp, DM_EVENT_POSTRENAME) ||
+	    DM_EVENT_ENABLED(target_dir_vp->v_vfsp,
+				target_dp, DM_EVENT_POSTRENAME)) {
+		(void) XFS_SEND_NAMESP (mp, DM_EVENT_POSTRENAME,
+					src_dir_vp, DM_RIGHT_NULL,
+					target_dir_vp, DM_RIGHT_NULL,
+					src_name, target_name,
+					0, error, 0);
+	}
+	return error;
+
+ abort_return:
+	cancel_flags |= XFS_TRANS_ABORT;
+	/* FALLTHROUGH */
+ error_return:
+	xfs_bmap_cancel(&free_list);
+	xfs_trans_cancel(tp, cancel_flags);
+	goto std_return;
+
+ rele_return:
+	IRELE(src_ip);
+	if (target_ip != NULL) {
+		IRELE(target_ip);
+	}
+	goto std_return;
+}
diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c
new file mode 100644
index 00000000000000..2c37822d1012e6
--- /dev/null
+++ b/fs/xfs/xfs_rtalloc.c
@@ -0,0 +1,2469 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+/*
+ * Free realtime space allocation for XFS.
+ */
+
+#include "xfs.h"
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_alloc.h"
+#include "xfs_bmap.h"
+#include "xfs_bit.h"
+#include "xfs_rtalloc.h"
+#include "xfs_fsops.h"
+#include "xfs_error.h"
+#include "xfs_rw.h"
+#include "xfs_inode_item.h"
+#include "xfs_trans_space.h"
+
+
+/*
+ * Prototypes for internal functions.
+ */
+
+
+STATIC int xfs_rtallocate_range(xfs_mount_t *, xfs_trans_t *, xfs_rtblock_t,
+		xfs_extlen_t, xfs_buf_t **, xfs_fsblock_t *);
+STATIC int xfs_rtany_summary(xfs_mount_t *, xfs_trans_t *, int, int,
+		xfs_rtblock_t, xfs_buf_t **, xfs_fsblock_t *, int *);
+STATIC int xfs_rtcheck_range(xfs_mount_t *, xfs_trans_t *, xfs_rtblock_t,
+		xfs_extlen_t, int, xfs_rtblock_t *, int *);
+STATIC int xfs_rtfind_back(xfs_mount_t *, xfs_trans_t *, xfs_rtblock_t,
+		xfs_rtblock_t, xfs_rtblock_t *);
+STATIC int xfs_rtfind_forw(xfs_mount_t *, xfs_trans_t *, xfs_rtblock_t,
+		xfs_rtblock_t, xfs_rtblock_t *);
+STATIC int xfs_rtget_summary( xfs_mount_t *, xfs_trans_t *, int,
+		xfs_rtblock_t, xfs_buf_t **, xfs_fsblock_t *, xfs_suminfo_t *);
+STATIC int xfs_rtmodify_range(xfs_mount_t *, xfs_trans_t *, xfs_rtblock_t,
+		xfs_extlen_t, int);
+STATIC int xfs_rtmodify_summary(xfs_mount_t *, xfs_trans_t *, int,
+		xfs_rtblock_t, int, xfs_buf_t **, xfs_fsblock_t *);
+
+/*
+ * Internal functions.
+ */
+
+/*
+ * xfs_lowbit32: get low bit set out of 32-bit argument, -1 if none set.
+ */
+STATIC int
+xfs_lowbit32(
+	__uint32_t	v)
+{
+	if (v)
+		return ffs(v) - 1;
+	return -1;
+}
+
+/*
+ * Allocate space to the bitmap or summary file, and zero it, for growfs.
+ */
+STATIC int				/* error */
+xfs_growfs_rt_alloc(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_extlen_t	oblocks,	/* old count of blocks */
+	xfs_extlen_t	nblocks,	/* new count of blocks */
+	xfs_ino_t	ino)		/* inode number (bitmap/summary) */
+{
+	xfs_fileoff_t	bno;		/* block number in file */
+	xfs_buf_t	*bp;		/* temporary buffer for zeroing */
+	int		cancelflags;	/* flags for xfs_trans_cancel */
+	int		committed;	/* transaction committed flag */
+	xfs_daddr_t	d;		/* disk block address */
+	int		error;		/* error return value */
+	xfs_fsblock_t	firstblock;	/* first block allocated in xaction */
+	xfs_bmap_free_t	flist;		/* list of freed blocks */
+	xfs_fsblock_t	fsbno;		/* filesystem block for bno */
+	xfs_inode_t	*ip;		/* pointer to incore inode */
+	xfs_bmbt_irec_t	map;		/* block map output */
+	int		nmap;		/* number of block maps */
+	int		resblks;	/* space reservation */
+	xfs_trans_t	*tp;		/* transaction pointer */
+
+	/*
+	 * Allocate space to the file, as necessary.
+	 */
+	while (oblocks < nblocks) {
+		tp = xfs_trans_alloc(mp, XFS_TRANS_GROWFSRT_ALLOC);
+		resblks = XFS_GROWFSRT_SPACE_RES(mp, nblocks - oblocks);
+		cancelflags = 0;
+		/*
+		 * Reserve space & log for one extent added to the file.
+		 */
+		if ((error = xfs_trans_reserve(tp, resblks,
+				XFS_GROWRTALLOC_LOG_RES(mp), 0,
+				XFS_TRANS_PERM_LOG_RES,
+				XFS_DEFAULT_PERM_LOG_COUNT)))
+			goto error_exit;
+		cancelflags = XFS_TRANS_RELEASE_LOG_RES;
+		/*
+		 * Lock the inode.
+		 */
+		if ((error = xfs_trans_iget(mp, tp, ino, 0, XFS_ILOCK_EXCL, &ip)))
+			goto error_exit;
+		XFS_BMAP_INIT(&flist, &firstblock);
+		/*
+		 * Allocate blocks to the bitmap file.
+		 */
+		nmap = 1;
+		cancelflags |= XFS_TRANS_ABORT;
+		error = xfs_bmapi(tp, ip, oblocks, nblocks - oblocks,
+			XFS_BMAPI_WRITE | XFS_BMAPI_METADATA, &firstblock,
+			resblks, &map, &nmap, &flist);
+		if (!error && nmap < 1)
+			error = XFS_ERROR(ENOSPC);
+		if (error)
+			goto error_exit;
+		/*
+		 * Free any blocks freed up in the transaction, then commit.
+		 */
+		error = xfs_bmap_finish(&tp, &flist, firstblock, &committed);
+		if (error)
+			goto error_exit;
+		xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES, NULL);
+		/*
+		 * Now we need to clear the allocated blocks.
+		 * Do this one block per transaction, to keep it simple.
+		 */
+		cancelflags = 0;
+		for (bno = map.br_startoff, fsbno = map.br_startblock;
+		     bno < map.br_startoff + map.br_blockcount;
+		     bno++, fsbno++) {
+			tp = xfs_trans_alloc(mp, XFS_TRANS_GROWFSRT_ZERO);
+			/*
+			 * Reserve log for one block zeroing.
+			 */
+			if ((error = xfs_trans_reserve(tp, 0,
+					XFS_GROWRTZERO_LOG_RES(mp), 0, 0, 0)))
+				goto error_exit;
+			/*
+			 * Lock the bitmap inode.
+			 */
+			if ((error = xfs_trans_iget(mp, tp, ino, 0, XFS_ILOCK_EXCL,
+					&ip)))
+				goto error_exit;
+			/*
+			 * Get a buffer for the block.
+			 */
+			d = XFS_FSB_TO_DADDR(mp, fsbno);
+			bp = xfs_trans_get_buf(tp, mp->m_ddev_targp, d,
+				mp->m_bsize, 0);
+			if (bp == NULL) {
+				error = XFS_ERROR(EIO);
+				goto error_exit;
+			}
+			memset(XFS_BUF_PTR(bp), 0, mp->m_sb.sb_blocksize);
+			xfs_trans_log_buf(tp, bp, 0, mp->m_sb.sb_blocksize - 1);
+			/*
+			 * Commit the transaction.
+			 */
+			xfs_trans_commit(tp, 0, NULL);
+		}
+		/*
+		 * Go on to the next extent, if any.
+		 */
+		oblocks = map.br_startoff + map.br_blockcount;
+	}
+	return 0;
+error_exit:
+	xfs_trans_cancel(tp, cancelflags);
+	return error;
+}
+
+/*
+ * Attempt to allocate an extent minlen<=len<=maxlen starting from
+ * bitmap block bbno.  If we don't get maxlen then use prod to trim
+ * the length, if given.  Returns error; returns starting block in *rtblock.
+ * The lengths are all in rtextents.
+ */
+STATIC int				/* error */
+xfs_rtallocate_extent_block(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_rtblock_t	bbno,		/* bitmap block number */
+	xfs_extlen_t	minlen,		/* minimum length to allocate */
+	xfs_extlen_t	maxlen,		/* maximum length to allocate */
+	xfs_extlen_t	*len,		/* out: actual length allocated */
+	xfs_rtblock_t	*nextp,		/* out: next block to try */
+	xfs_buf_t	**rbpp,		/* in/out: summary block buffer */
+	xfs_fsblock_t	*rsb,		/* in/out: summary block number */
+	xfs_extlen_t	prod,		/* extent product factor */
+	xfs_rtblock_t	*rtblock)	/* out: start block allocated */
+{
+	xfs_rtblock_t	besti;		/* best rtblock found so far */
+	xfs_rtblock_t	bestlen;	/* best length found so far */
+	xfs_rtblock_t	end;		/* last rtblock in chunk */
+	int		error;		/* error value */
+	xfs_rtblock_t	i;		/* current rtblock trying */
+	xfs_rtblock_t	next;		/* next rtblock to try */
+	int		stat;		/* status from internal calls */
+
+	/*
+	 * Loop over all the extents starting in this bitmap block,
+	 * looking for one that's long enough.
+	 */
+	for (i = XFS_BLOCKTOBIT(mp, bbno), besti = -1, bestlen = 0,
+		end = XFS_BLOCKTOBIT(mp, bbno + 1) - 1;
+	     i <= end;
+	     i++) {
+		/*
+		 * See if there's a free extent of maxlen starting at i.
+		 * If it's not so then next will contain the first non-free.
+		 */
+		error = xfs_rtcheck_range(mp, tp, i, maxlen, 1, &next, &stat);
+		if (error) {
+			return error;
+		}
+		if (stat) {
+			/*
+			 * i for maxlen is all free, allocate and return that.
+			 */
+			error = xfs_rtallocate_range(mp, tp, i, maxlen, rbpp,
+				rsb);
+			if (error) {
+				return error;
+			}
+			*len = maxlen;
+			*rtblock = i;
+			return 0;
+		}
+		/*
+		 * In the case where we have a variable-sized allocation
+		 * request, figure out how big this free piece is,
+		 * and if it's big enough for the minimum, and the best
+		 * so far, remember it.
+		 */
+		if (minlen < maxlen) {
+			xfs_rtblock_t	thislen;	/* this extent size */
+
+			thislen = next - i;
+			if (thislen >= minlen && thislen > bestlen) {
+				besti = i;
+				bestlen = thislen;
+			}
+		}
+		/*
+		 * If not done yet, find the start of the next free space.
+		 */
+		if (next < end) {
+			error = xfs_rtfind_forw(mp, tp, next, end, &i);
+			if (error) {
+				return error;
+			}
+		} else
+			break;
+	}
+	/*
+	 * Searched the whole thing & didn't find a maxlen free extent.
+	 */
+	if (minlen < maxlen && besti != -1) {
+		xfs_extlen_t	p;	/* amount to trim length by */
+
+		/*
+		 * If size should be a multiple of prod, make that so.
+		 */
+		if (prod > 1 && (p = do_mod(bestlen, prod)))
+			bestlen -= p;
+		/*
+		 * Allocate besti for bestlen & return that.
+		 */
+		error = xfs_rtallocate_range(mp, tp, besti, bestlen, rbpp, rsb);
+		if (error) {
+			return error;
+		}
+		*len = bestlen;
+		*rtblock = besti;
+		return 0;
+	}
+	/*
+	 * Allocation failed.  Set *nextp to the next block to try.
+	 */
+	*nextp = next;
+	*rtblock = NULLRTBLOCK;
+	return 0;
+}
+
+/*
+ * Allocate an extent of length minlen<=len<=maxlen, starting at block
+ * bno.  If we don't get maxlen then use prod to trim the length, if given.
+ * Returns error; returns starting block in *rtblock.
+ * The lengths are all in rtextents.
+ */
+STATIC int				/* error */
+xfs_rtallocate_extent_exact(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_rtblock_t	bno,		/* starting block number to allocate */
+	xfs_extlen_t	minlen,		/* minimum length to allocate */
+	xfs_extlen_t	maxlen,		/* maximum length to allocate */
+	xfs_extlen_t	*len,		/* out: actual length allocated */
+	xfs_buf_t	**rbpp,		/* in/out: summary block buffer */
+	xfs_fsblock_t	*rsb,		/* in/out: summary block number */
+	xfs_extlen_t	prod,		/* extent product factor */
+	xfs_rtblock_t	*rtblock)	/* out: start block allocated */
+{
+	int		error;		/* error value */
+	xfs_extlen_t	i;		/* extent length trimmed due to prod */
+	int		isfree;		/* extent is free */
+	xfs_rtblock_t	next;		/* next block to try (dummy) */
+
+	ASSERT(minlen % prod == 0 && maxlen % prod == 0);
+	/*
+	 * Check if the range in question (for maxlen) is free.
+	 */
+	error = xfs_rtcheck_range(mp, tp, bno, maxlen, 1, &next, &isfree);
+	if (error) {
+		return error;
+	}
+	if (isfree) {
+		/*
+		 * If it is, allocate it and return success.
+		 */
+		error = xfs_rtallocate_range(mp, tp, bno, maxlen, rbpp, rsb);
+		if (error) {
+			return error;
+		}
+		*len = maxlen;
+		*rtblock = bno;
+		return 0;
+	}
+	/*
+	 * If not, allocate what there is, if it's at least minlen.
+	 */
+	maxlen = next - bno;
+	if (maxlen < minlen) {
+		/*
+		 * Failed, return failure status.
+		 */
+		*rtblock = NULLRTBLOCK;
+		return 0;
+	}
+	/*
+	 * Trim off tail of extent, if prod is specified.
+	 */
+	if (prod > 1 && (i = maxlen % prod)) {
+		maxlen -= i;
+		if (maxlen < minlen) {
+			/*
+			 * Now we can't do it, return failure status.
+			 */
+			*rtblock = NULLRTBLOCK;
+			return 0;
+		}
+	}
+	/*
+	 * Allocate what we can and return it.
+	 */
+	error = xfs_rtallocate_range(mp, tp, bno, maxlen, rbpp, rsb);
+	if (error) {
+		return error;
+	}
+	*len = maxlen;
+	*rtblock = bno;
+	return 0;
+}
+
+/*
+ * Allocate an extent of length minlen<=len<=maxlen, starting as near
+ * to bno as possible.  If we don't get maxlen then use prod to trim
+ * the length, if given.  The lengths are all in rtextents.
+ */
+STATIC int				/* error */
+xfs_rtallocate_extent_near(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_rtblock_t	bno,		/* starting block number to allocate */
+	xfs_extlen_t	minlen,		/* minimum length to allocate */
+	xfs_extlen_t	maxlen,		/* maximum length to allocate */
+	xfs_extlen_t	*len,		/* out: actual length allocated */
+	xfs_buf_t	**rbpp,		/* in/out: summary block buffer */
+	xfs_fsblock_t	*rsb,		/* in/out: summary block number */
+	xfs_extlen_t	prod,		/* extent product factor */
+	xfs_rtblock_t	*rtblock)	/* out: start block allocated */
+{
+	int		any;		/* any useful extents from summary */
+	xfs_rtblock_t	bbno;		/* bitmap block number */
+	int		error;		/* error value */
+	int		i;		/* bitmap block offset (loop control) */
+	int		j;		/* secondary loop control */
+	int		log2len;	/* log2 of minlen */
+	xfs_rtblock_t	n;		/* next block to try */
+	xfs_rtblock_t	r;		/* result block */
+
+	ASSERT(minlen % prod == 0 && maxlen % prod == 0);
+	/*
+	 * If the block number given is off the end, silently set it to
+	 * the last block.
+	 */
+	if (bno >= mp->m_sb.sb_rextents)
+		bno = mp->m_sb.sb_rextents - 1;
+	/*
+	 * Try the exact allocation first.
+	 */
+	error = xfs_rtallocate_extent_exact(mp, tp, bno, minlen, maxlen, len,
+		rbpp, rsb, prod, &r);
+	if (error) {
+		return error;
+	}
+	/*
+	 * If the exact allocation worked, return that.
+	 */
+	if (r != NULLRTBLOCK) {
+		*rtblock = r;
+		return 0;
+	}
+	bbno = XFS_BITTOBLOCK(mp, bno);
+	i = 0;
+	log2len = xfs_highbit32(minlen);
+	/*
+	 * Loop over all bitmap blocks (bbno + i is current block).
+	 */
+	for (;;) {
+		/*
+		 * Get summary information of extents of all useful levels
+		 * starting in this bitmap block.
+		 */
+		error = xfs_rtany_summary(mp, tp, log2len, mp->m_rsumlevels - 1,
+			bbno + i, rbpp, rsb, &any);
+		if (error) {
+			return error;
+		}
+		/*
+		 * If there are any useful extents starting here, try
+		 * allocating one.
+		 */
+		if (any) {
+			/*
+			 * On the positive side of the starting location.
+			 */
+			if (i >= 0) {
+				/*
+				 * Try to allocate an extent starting in
+				 * this block.
+				 */
+				error = xfs_rtallocate_extent_block(mp, tp,
+					bbno + i, minlen, maxlen, len, &n, rbpp,
+					rsb, prod, &r);
+				if (error) {
+					return error;
+				}
+				/*
+				 * If it worked, return it.
+				 */
+				if (r != NULLRTBLOCK) {
+					*rtblock = r;
+					return 0;
+				}
+			}
+			/*
+			 * On the negative side of the starting location.
+			 */
+			else {		/* i < 0 */
+				/*
+				 * Loop backwards through the bitmap blocks from
+				 * the starting point-1 up to where we are now.
+				 * There should be an extent which ends in this
+				 * bitmap block and is long enough.
+				 */
+				for (j = -1; j > i; j--) {
+					/*
+					 * Grab the summary information for
+					 * this bitmap block.
+					 */
+					error = xfs_rtany_summary(mp, tp,
+						log2len, mp->m_rsumlevels - 1,
+						bbno + j, rbpp, rsb, &any);
+					if (error) {
+						return error;
+					}
+					/*
+					 * If there's no extent given in the
+					 * summary that means the extent we
+					 * found must carry over from an
+					 * earlier block.  If there is an
+					 * extent given, we've already tried
+					 * that allocation, don't do it again.
+					 */
+					if (any)
+						continue;
+					error = xfs_rtallocate_extent_block(mp,
+						tp, bbno + j, minlen, maxlen,
+						len, &n, rbpp, rsb, prod, &r);
+					if (error) {
+						return error;
+					}
+					/*
+					 * If it works, return the extent.
+					 */
+					if (r != NULLRTBLOCK) {
+						*rtblock = r;
+						return 0;
+					}
+				}
+				/*
+				 * There weren't intervening bitmap blocks
+				 * with a long enough extent, or the
+				 * allocation didn't work for some reason
+				 * (i.e. it's a little * too short).
+				 * Try to allocate from the summary block
+				 * that we found.
+				 */
+				error = xfs_rtallocate_extent_block(mp, tp,
+					bbno + i, minlen, maxlen, len, &n, rbpp,
+					rsb, prod, &r);
+				if (error) {
+					return error;
+				}
+				/*
+				 * If it works, return the extent.
+				 */
+				if (r != NULLRTBLOCK) {
+					*rtblock = r;
+					return 0;
+				}
+			}
+		}
+		/*
+		 * Loop control.  If we were on the positive side, and there's
+		 * still more blocks on the negative side, go there.
+		 */
+		if (i > 0 && (int)bbno - i >= 0)
+			i = -i;
+		/*
+		 * If positive, and no more negative, but there are more
+		 * positive, go there.
+		 */
+		else if (i > 0 && (int)bbno + i < mp->m_sb.sb_rbmblocks - 1)
+			i++;
+		/*
+		 * If negative or 0 (just started), and there are positive
+		 * blocks to go, go there.  The 0 case moves to block 1.
+		 */
+		else if (i <= 0 && (int)bbno - i < mp->m_sb.sb_rbmblocks - 1)
+			i = 1 - i;
+		/*
+		 * If negative or 0 and there are more negative blocks,
+		 * go there.
+		 */
+		else if (i <= 0 && (int)bbno + i > 0)
+			i--;
+		/*
+		 * Must be done.  Return failure.
+		 */
+		else
+			break;
+	}
+	*rtblock = NULLRTBLOCK;
+	return 0;
+}
+
+/*
+ * Allocate an extent of length minlen<=len<=maxlen, with no position
+ * specified.  If we don't get maxlen then use prod to trim
+ * the length, if given.  The lengths are all in rtextents.
+ */
+STATIC int				/* error */
+xfs_rtallocate_extent_size(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_extlen_t	minlen,		/* minimum length to allocate */
+	xfs_extlen_t	maxlen,		/* maximum length to allocate */
+	xfs_extlen_t	*len,		/* out: actual length allocated */
+	xfs_buf_t	**rbpp,		/* in/out: summary block buffer */
+	xfs_fsblock_t	*rsb,		/* in/out: summary block number */
+	xfs_extlen_t	prod,		/* extent product factor */
+	xfs_rtblock_t	*rtblock)	/* out: start block allocated */
+{
+	int		error;		/* error value */
+	int		i;		/* bitmap block number */
+	int		l;		/* level number (loop control) */
+	xfs_rtblock_t	n;		/* next block to be tried */
+	xfs_rtblock_t	r;		/* result block number */
+	xfs_suminfo_t	sum;		/* summary information for extents */
+
+	ASSERT(minlen % prod == 0 && maxlen % prod == 0);
+	/*
+	 * Loop over all the levels starting with maxlen.
+	 * At each level, look at all the bitmap blocks, to see if there
+	 * are extents starting there that are long enough (>= maxlen).
+	 * Note, only on the initial level can the allocation fail if
+	 * the summary says there's an extent.
+	 */
+	for (l = xfs_highbit32(maxlen); l < mp->m_rsumlevels; l++) {
+		/*
+		 * Loop over all the bitmap blocks.
+		 */
+		for (i = 0; i < mp->m_sb.sb_rbmblocks; i++) {
+			/*
+			 * Get the summary for this level/block.
+			 */
+			error = xfs_rtget_summary(mp, tp, l, i, rbpp, rsb,
+				&sum);
+			if (error) {
+				return error;
+			}
+			/*
+			 * Nothing there, on to the next block.
+			 */
+			if (!sum)
+				continue;
+			/*
+			 * Try allocating the extent.
+			 */
+			error = xfs_rtallocate_extent_block(mp, tp, i, maxlen,
+				maxlen, len, &n, rbpp, rsb, prod, &r);
+			if (error) {
+				return error;
+			}
+			/*
+			 * If it worked, return that.
+			 */
+			if (r != NULLRTBLOCK) {
+				*rtblock = r;
+				return 0;
+			}
+			/*
+			 * If the "next block to try" returned from the
+			 * allocator is beyond the next bitmap block,
+			 * skip to that bitmap block.
+			 */
+			if (XFS_BITTOBLOCK(mp, n) > i + 1)
+				i = XFS_BITTOBLOCK(mp, n) - 1;
+		}
+	}
+	/*
+	 * Didn't find any maxlen blocks.  Try smaller ones, unless
+	 * we're asking for a fixed size extent.
+	 */
+	if (minlen > --maxlen) {
+		*rtblock = NULLRTBLOCK;
+		return 0;
+	}
+	/*
+	 * Loop over sizes, from maxlen down to minlen.
+	 * This time, when we do the allocations, allow smaller ones
+	 * to succeed.
+	 */
+	for (l = xfs_highbit32(maxlen); l >= xfs_highbit32(minlen); l--) {
+		/*
+		 * Loop over all the bitmap blocks, try an allocation
+		 * starting in that block.
+		 */
+		for (i = 0; i < mp->m_sb.sb_rbmblocks; i++) {
+			/*
+			 * Get the summary information for this level/block.
+			 */
+			error =	xfs_rtget_summary(mp, tp, l, i, rbpp, rsb,
+						  &sum);
+			if (error) {
+				return error;
+			}
+			/*
+			 * If nothing there, go on to next.
+			 */
+			if (!sum)
+				continue;
+			/*
+			 * Try the allocation.  Make sure the specified
+			 * minlen/maxlen are in the possible range for
+			 * this summary level.
+			 */
+			error = xfs_rtallocate_extent_block(mp, tp, i,
+					XFS_RTMAX(minlen, 1 << l),
+					XFS_RTMIN(maxlen, (1 << (l + 1)) - 1),
+					len, &n, rbpp, rsb, prod, &r);
+			if (error) {
+				return error;
+			}
+			/*
+			 * If it worked, return that extent.
+			 */
+			if (r != NULLRTBLOCK) {
+				*rtblock = r;
+				return 0;
+			}
+			/*
+			 * If the "next block to try" returned from the
+			 * allocator is beyond the next bitmap block,
+			 * skip to that bitmap block.
+			 */
+			if (XFS_BITTOBLOCK(mp, n) > i + 1)
+				i = XFS_BITTOBLOCK(mp, n) - 1;
+		}
+	}
+	/*
+	 * Got nothing, return failure.
+	 */
+	*rtblock = NULLRTBLOCK;
+	return 0;
+}
+
+/*
+ * Mark an extent specified by start and len allocated.
+ * Updates all the summary information as well as the bitmap.
+ */
+STATIC int				/* error */
+xfs_rtallocate_range(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_rtblock_t	start,		/* start block to allocate */
+	xfs_extlen_t	len,		/* length to allocate */
+	xfs_buf_t	**rbpp,		/* in/out: summary block buffer */
+	xfs_fsblock_t	*rsb)		/* in/out: summary block number */
+{
+	xfs_rtblock_t	end;		/* end of the allocated extent */
+	int		error;		/* error value */
+	xfs_rtblock_t	postblock;	/* first block allocated > end */
+	xfs_rtblock_t	preblock;	/* first block allocated < start */
+
+	end = start + len - 1;
+	/*
+	 * Assume we're allocating out of the middle of a free extent.
+	 * We need to find the beginning and end of the extent so we can
+	 * properly update the summary.
+	 */
+	error = xfs_rtfind_back(mp, tp, start, 0, &preblock);
+	if (error) {
+		return error;
+	}
+	/*
+	 * Find the next allocated block (end of free extent).
+	 */
+	error = xfs_rtfind_forw(mp, tp, end, mp->m_sb.sb_rextents - 1,
+		&postblock);
+	if (error) {
+		return error;
+	}
+	/*
+	 * Decrement the summary information corresponding to the entire
+	 * (old) free extent.
+	 */
+	error = xfs_rtmodify_summary(mp, tp,
+		XFS_RTBLOCKLOG(postblock + 1 - preblock),
+		XFS_BITTOBLOCK(mp, preblock), -1, rbpp, rsb);
+	if (error) {
+		return error;
+	}
+	/*
+	 * If there are blocks not being allocated at the front of the
+	 * old extent, add summary data for them to be free.
+	 */
+	if (preblock < start) {
+		error = xfs_rtmodify_summary(mp, tp,
+			XFS_RTBLOCKLOG(start - preblock),
+			XFS_BITTOBLOCK(mp, preblock), 1, rbpp, rsb);
+		if (error) {
+			return error;
+		}
+	}
+	/*
+	 * If there are blocks not being allocated at the end of the
+	 * old extent, add summary data for them to be free.
+	 */
+	if (postblock > end) {
+		error = xfs_rtmodify_summary(mp, tp,
+			XFS_RTBLOCKLOG(postblock - end),
+			XFS_BITTOBLOCK(mp, end + 1), 1, rbpp, rsb);
+		if (error) {
+			return error;
+		}
+	}
+	/*
+	 * Modify the bitmap to mark this extent allocated.
+	 */
+	error = xfs_rtmodify_range(mp, tp, start, len, 0);
+	return error;
+}
+
+/*
+ * Return whether there are any free extents in the size range given
+ * by low and high, for the bitmap block bbno.
+ */
+STATIC int				/* error */
+xfs_rtany_summary(
+	xfs_mount_t	*mp,		/* file system mount structure */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	int		low,		/* low log2 extent size */
+	int		high,		/* high log2 extent size */
+	xfs_rtblock_t	bbno,		/* bitmap block number */
+	xfs_buf_t	**rbpp,		/* in/out: summary block buffer */
+	xfs_fsblock_t	*rsb,		/* in/out: summary block number */
+	int		*stat)		/* out: any good extents here? */
+{
+	int		error;		/* error value */
+	int		log;		/* loop counter, log2 of ext. size */
+	xfs_suminfo_t	sum;		/* summary data */
+
+	/*
+	 * Loop over logs of extent sizes.  Order is irrelevant.
+	 */
+	for (log = low; log <= high; log++) {
+		/*
+		 * Get one summary datum.
+		 */
+		error = xfs_rtget_summary(mp, tp, log, bbno, rbpp, rsb, &sum);
+		if (error) {
+			return error;
+		}
+		/*
+		 * If there are any, return success.
+		 */
+		if (sum) {
+			*stat = 1;
+			return 0;
+		}
+	}
+	/*
+	 * Found nothing, return failure.
+	 */
+	*stat = 0;
+	return 0;
+}
+
+/*
+ * Get a buffer for the bitmap or summary file block specified.
+ * The buffer is returned read and locked.
+ */
+STATIC int				/* error */
+xfs_rtbuf_get(
+	xfs_mount_t	*mp,		/* file system mount structure */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_rtblock_t	block,		/* block number in bitmap or summary */
+	int		issum,		/* is summary not bitmap */
+	xfs_buf_t	**bpp)		/* output: buffer for the block */
+{
+	xfs_buf_t	*bp;		/* block buffer, result */
+	xfs_daddr_t	d;		/* disk addr of block */
+	int		error;		/* error value */
+	xfs_fsblock_t	fsb;		/* fs block number for block */
+	xfs_inode_t	*ip;		/* bitmap or summary inode */
+
+	ip = issum ? mp->m_rsumip : mp->m_rbmip;
+	/*
+	 * Map from the file offset (block) and inode number to the
+	 * file system block.
+	 */
+	error = xfs_bmapi_single(tp, ip, XFS_DATA_FORK, &fsb, block);
+	if (error) {
+		return error;
+	}
+	ASSERT(fsb != NULLFSBLOCK);
+	/*
+	 * Convert to disk address for buffer cache.
+	 */
+	d = XFS_FSB_TO_DADDR(mp, fsb);
+	/*
+	 * Read the buffer.
+	 */
+	error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp, d,
+				   mp->m_bsize, 0, &bp);
+	if (error) {
+		return error;
+	}
+	ASSERT(bp && !XFS_BUF_GETERROR(bp));
+	*bpp = bp;
+	return 0;
+}
+
+#ifdef DEBUG
+/*
+ * Check that the given extent (block range) is allocated already.
+ */
+STATIC int				/* error */
+xfs_rtcheck_alloc_range(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_rtblock_t	bno,		/* starting block number of extent */
+	xfs_extlen_t	len,		/* length of extent */
+	int		*stat)		/* out: 1 for allocated, 0 for not */
+{
+	xfs_rtblock_t	new;		/* dummy for xfs_rtcheck_range */
+
+	return xfs_rtcheck_range(mp, tp, bno, len, 0, &new, stat);
+}
+#endif
+
+#ifdef DEBUG
+/*
+ * Check whether the given block in the bitmap has the given value.
+ */
+STATIC int				/* 1 for matches, 0 for not */
+xfs_rtcheck_bit(
+	xfs_mount_t	*mp,		/* file system mount structure */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_rtblock_t	start,		/* bit (block) to check */
+	int		val)		/* 1 for free, 0 for allocated */
+{
+	int		bit;		/* bit number in the word */
+	xfs_rtblock_t	block;		/* bitmap block number */
+	xfs_buf_t	*bp;		/* buf for the block */
+	xfs_rtword_t	*bufp;		/* pointer into the buffer */
+	/* REFERENCED */
+	int		error;		/* error value */
+	xfs_rtword_t	wdiff;		/* difference between bit & expected */
+	int		word;		/* word number in the buffer */
+	xfs_rtword_t	wval;		/* word value from buffer */
+
+	block = XFS_BITTOBLOCK(mp, start);
+	error = xfs_rtbuf_get(mp, tp, block, 0, &bp);
+	bufp = (xfs_rtword_t *)XFS_BUF_PTR(bp);
+	word = XFS_BITTOWORD(mp, start);
+	bit = (int)(start & (XFS_NBWORD - 1));
+	wval = bufp[word];
+	xfs_trans_brelse(tp, bp);
+	wdiff = (wval ^ -val) & ((xfs_rtword_t)1 << bit);
+	return !wdiff;
+}
+#endif	/* DEBUG */
+
+#if 0
+/*
+ * Check that the given extent (block range) is free already.
+ */
+STATIC int				/* error */
+xfs_rtcheck_free_range(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_rtblock_t	bno,		/* starting block number of extent */
+	xfs_extlen_t	len,		/* length of extent */
+	int		*stat)		/* out: 1 for free, 0 for not */
+{
+	xfs_rtblock_t	new;		/* dummy for xfs_rtcheck_range */
+
+	return xfs_rtcheck_range(mp, tp, bno, len, 1, &new, stat);
+}
+#endif
+
+/*
+ * Check that the given range is either all allocated (val = 0) or
+ * all free (val = 1).
+ */
+STATIC int				/* error */
+xfs_rtcheck_range(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_rtblock_t	start,		/* starting block number of extent */
+	xfs_extlen_t	len,		/* length of extent */
+	int		val,		/* 1 for free, 0 for allocated */
+	xfs_rtblock_t	*new,		/* out: first block not matching */
+	int		*stat)		/* out: 1 for matches, 0 for not */
+{
+	xfs_rtword_t	*b;		/* current word in buffer */
+	int		bit;		/* bit number in the word */
+	xfs_rtblock_t	block;		/* bitmap block number */
+	xfs_buf_t	*bp;		/* buf for the block */
+	xfs_rtword_t	*bufp;		/* starting word in buffer */
+	int		error;		/* error value */
+	xfs_rtblock_t	i;		/* current bit number rel. to start */
+	xfs_rtblock_t	lastbit;	/* last useful bit in word */
+	xfs_rtword_t	mask;		/* mask of relevant bits for value */
+	xfs_rtword_t	wdiff;		/* difference from wanted value */
+	int		word;		/* word number in the buffer */
+
+	/*
+	 * Compute starting bitmap block number
+	 */
+	block = XFS_BITTOBLOCK(mp, start);
+	/*
+	 * Read the bitmap block.
+	 */
+	error = xfs_rtbuf_get(mp, tp, block, 0, &bp);
+	if (error) {
+		return error;
+	}
+	bufp = (xfs_rtword_t *)XFS_BUF_PTR(bp);
+	/*
+	 * Compute the starting word's address, and starting bit.
+	 */
+	word = XFS_BITTOWORD(mp, start);
+	b = &bufp[word];
+	bit = (int)(start & (XFS_NBWORD - 1));
+	/*
+	 * 0 (allocated) => all zero's; 1 (free) => all one's.
+	 */
+	val = -val;
+	/*
+	 * If not starting on a word boundary, deal with the first
+	 * (partial) word.
+	 */
+	if (bit) {
+		/*
+		 * Compute first bit not examined.
+		 */
+		lastbit = XFS_RTMIN(bit + len, XFS_NBWORD);
+		/*
+		 * Mask of relevant bits.
+		 */
+		mask = (((xfs_rtword_t)1 << (lastbit - bit)) - 1) << bit;
+		/*
+		 * Compute difference between actual and desired value.
+		 */
+		if ((wdiff = (*b ^ val) & mask)) {
+			/*
+			 * Different, compute first wrong bit and return.
+			 */
+			xfs_trans_brelse(tp, bp);
+			i = XFS_RTLOBIT(wdiff) - bit;
+			*new = start + i;
+			*stat = 0;
+			return 0;
+		}
+		i = lastbit - bit;
+		/*
+		 * Go on to next block if that's where the next word is
+		 * and we need the next word.
+		 */
+		if (++word == XFS_BLOCKWSIZE(mp) && i < len) {
+			/*
+			 * If done with this block, get the next one.
+			 */
+			xfs_trans_brelse(tp, bp);
+			error = xfs_rtbuf_get(mp, tp, ++block, 0, &bp);
+			if (error) {
+				return error;
+			}
+			b = bufp = (xfs_rtword_t *)XFS_BUF_PTR(bp);
+			word = 0;
+		} else {
+			/*
+			 * Go on to the next word in the buffer.
+			 */
+			b++;
+		}
+	} else {
+		/*
+		 * Starting on a word boundary, no partial word.
+		 */
+		i = 0;
+	}
+	/*
+	 * Loop over whole words in buffers.  When we use up one buffer
+	 * we move on to the next one.
+	 */
+	while (len - i >= XFS_NBWORD) {
+		/*
+		 * Compute difference between actual and desired value.
+		 */
+		if ((wdiff = *b ^ val)) {
+			/*
+			 * Different, compute first wrong bit and return.
+			 */
+			xfs_trans_brelse(tp, bp);
+			i += XFS_RTLOBIT(wdiff);
+			*new = start + i;
+			*stat = 0;
+			return 0;
+		}
+		i += XFS_NBWORD;
+		/*
+		 * Go on to next block if that's where the next word is
+		 * and we need the next word.
+		 */
+		if (++word == XFS_BLOCKWSIZE(mp) && i < len) {
+			/*
+			 * If done with this block, get the next one.
+			 */
+			xfs_trans_brelse(tp, bp);
+			error = xfs_rtbuf_get(mp, tp, ++block, 0, &bp);
+			if (error) {
+				return error;
+			}
+			b = bufp = (xfs_rtword_t *)XFS_BUF_PTR(bp);
+			word = 0;
+		} else {
+			/*
+			 * Go on to the next word in the buffer.
+			 */
+			b++;
+		}
+	}
+	/*
+	 * If not ending on a word boundary, deal with the last
+	 * (partial) word.
+	 */
+	if ((lastbit = len - i)) {
+		/*
+		 * Mask of relevant bits.
+		 */
+		mask = ((xfs_rtword_t)1 << lastbit) - 1;
+		/*
+		 * Compute difference between actual and desired value.
+		 */
+		if ((wdiff = (*b ^ val) & mask)) {
+			/*
+			 * Different, compute first wrong bit and return.
+			 */
+			xfs_trans_brelse(tp, bp);
+			i += XFS_RTLOBIT(wdiff);
+			*new = start + i;
+			*stat = 0;
+			return 0;
+		} else
+			i = len;
+	}
+	/*
+	 * Successful, return.
+	 */
+	xfs_trans_brelse(tp, bp);
+	*new = start + i;
+	*stat = 1;
+	return 0;
+}
+
+/*
+ * Copy and transform the summary file, given the old and new
+ * parameters in the mount structures.
+ */
+STATIC int				/* error */
+xfs_rtcopy_summary(
+	xfs_mount_t	*omp,		/* old file system mount point */
+	xfs_mount_t	*nmp,		/* new file system mount point */
+	xfs_trans_t	*tp)		/* transaction pointer */
+{
+	xfs_rtblock_t	bbno;		/* bitmap block number */
+	xfs_buf_t	*bp;		/* summary buffer */
+	int		error;		/* error return value */
+	int		log;		/* summary level number (log length) */
+	xfs_suminfo_t	sum;		/* summary data */
+	xfs_fsblock_t	sumbno;		/* summary block number */
+
+	bp = NULL;
+	for (log = omp->m_rsumlevels - 1; log >= 0; log--) {
+		for (bbno = omp->m_sb.sb_rbmblocks - 1;
+		     (xfs_srtblock_t)bbno >= 0;
+		     bbno--) {
+			error = xfs_rtget_summary(omp, tp, log, bbno, &bp,
+				&sumbno, &sum);
+			if (error)
+				return error;
+			if (sum == 0)
+				continue;
+			error = xfs_rtmodify_summary(omp, tp, log, bbno, -sum,
+				&bp, &sumbno);
+			if (error)
+				return error;
+			error = xfs_rtmodify_summary(nmp, tp, log, bbno, sum,
+				&bp, &sumbno);
+			if (error)
+				return error;
+			ASSERT(sum > 0);
+		}
+	}
+	return 0;
+}
+
+/*
+ * Searching backward from start to limit, find the first block whose
+ * allocated/free state is different from start's.
+ */
+STATIC int				/* error */
+xfs_rtfind_back(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_rtblock_t	start,		/* starting block to look at */
+	xfs_rtblock_t	limit,		/* last block to look at */
+	xfs_rtblock_t	*rtblock)	/* out: start block found */
+{
+	xfs_rtword_t	*b;		/* current word in buffer */
+	int		bit;		/* bit number in the word */
+	xfs_rtblock_t	block;		/* bitmap block number */
+	xfs_buf_t	*bp;		/* buf for the block */
+	xfs_rtword_t	*bufp;		/* starting word in buffer */
+	int		error;		/* error value */
+	xfs_rtblock_t	firstbit;	/* first useful bit in the word */
+	xfs_rtblock_t	i;		/* current bit number rel. to start */
+	xfs_rtblock_t	len;		/* length of inspected area */
+	xfs_rtword_t	mask;		/* mask of relevant bits for value */
+	xfs_rtword_t	want;		/* mask for "good" values */
+	xfs_rtword_t	wdiff;		/* difference from wanted value */
+	int		word;		/* word number in the buffer */
+
+	/*
+	 * Compute and read in starting bitmap block for starting block.
+	 */
+	block = XFS_BITTOBLOCK(mp, start);
+	error = xfs_rtbuf_get(mp, tp, block, 0, &bp);
+	if (error) {
+		return error;
+	}
+	bufp = (xfs_rtword_t *)XFS_BUF_PTR(bp);
+	/*
+	 * Get the first word's index & point to it.
+	 */
+	word = XFS_BITTOWORD(mp, start);
+	b = &bufp[word];
+	bit = (int)(start & (XFS_NBWORD - 1));
+	len = start - limit + 1;
+	/*
+	 * Compute match value, based on the bit at start: if 1 (free)
+	 * then all-ones, else all-zeroes.
+	 */
+	want = (*b & ((xfs_rtword_t)1 << bit)) ? -1 : 0;
+	/*
+	 * If the starting position is not word-aligned, deal with the
+	 * partial word.
+	 */
+	if (bit < XFS_NBWORD - 1) {
+		/*
+		 * Calculate first (leftmost) bit number to look at,
+		 * and mask for all the relevant bits in this word.
+		 */
+		firstbit = XFS_RTMAX((xfs_srtblock_t)(bit - len + 1), 0);
+		mask = (((xfs_rtword_t)1 << (bit - firstbit + 1)) - 1) <<
+			firstbit;
+		/*
+		 * Calculate the difference between the value there
+		 * and what we're looking for.
+		 */
+		if ((wdiff = (*b ^ want) & mask)) {
+			/*
+			 * Different.  Mark where we are and return.
+			 */
+			xfs_trans_brelse(tp, bp);
+			i = bit - XFS_RTHIBIT(wdiff);
+			*rtblock = start - i + 1;
+			return 0;
+		}
+		i = bit - firstbit + 1;
+		/*
+		 * Go on to previous block if that's where the previous word is
+		 * and we need the previous word.
+		 */
+		if (--word == -1 && i < len) {
+			/*
+			 * If done with this block, get the previous one.
+			 */
+			xfs_trans_brelse(tp, bp);
+			error = xfs_rtbuf_get(mp, tp, --block, 0, &bp);
+			if (error) {
+				return error;
+			}
+			bufp = (xfs_rtword_t *)XFS_BUF_PTR(bp);
+			word = XFS_BLOCKWMASK(mp);
+			b = &bufp[word];
+		} else {
+			/*
+			 * Go on to the previous word in the buffer.
+			 */
+			b--;
+		}
+	} else {
+		/*
+		 * Starting on a word boundary, no partial word.
+		 */
+		i = 0;
+	}
+	/*
+	 * Loop over whole words in buffers.  When we use up one buffer
+	 * we move on to the previous one.
+	 */
+	while (len - i >= XFS_NBWORD) {
+		/*
+		 * Compute difference between actual and desired value.
+		 */
+		if ((wdiff = *b ^ want)) {
+			/*
+			 * Different, mark where we are and return.
+			 */
+			xfs_trans_brelse(tp, bp);
+			i += XFS_NBWORD - 1 - XFS_RTHIBIT(wdiff);
+			*rtblock = start - i + 1;
+			return 0;
+		}
+		i += XFS_NBWORD;
+		/*
+		 * Go on to previous block if that's where the previous word is
+		 * and we need the previous word.
+		 */
+		if (--word == -1 && i < len) {
+			/*
+			 * If done with this block, get the previous one.
+			 */
+			xfs_trans_brelse(tp, bp);
+			error = xfs_rtbuf_get(mp, tp, --block, 0, &bp);
+			if (error) {
+				return error;
+			}
+			bufp = (xfs_rtword_t *)XFS_BUF_PTR(bp);
+			word = XFS_BLOCKWMASK(mp);
+			b = &bufp[word];
+		} else {
+			/*
+			 * Go on to the previous word in the buffer.
+			 */
+			b--;
+		}
+	}
+	/*
+	 * If not ending on a word boundary, deal with the last
+	 * (partial) word.
+	 */
+	if (len - i) {
+		/*
+		 * Calculate first (leftmost) bit number to look at,
+		 * and mask for all the relevant bits in this word.
+		 */
+		firstbit = XFS_NBWORD - (len - i);
+		mask = (((xfs_rtword_t)1 << (len - i)) - 1) << firstbit;
+		/*
+		 * Compute difference between actual and desired value.
+		 */
+		if ((wdiff = (*b ^ want) & mask)) {
+			/*
+			 * Different, mark where we are and return.
+			 */
+			xfs_trans_brelse(tp, bp);
+			i += XFS_NBWORD - 1 - XFS_RTHIBIT(wdiff);
+			*rtblock = start - i + 1;
+			return 0;
+		} else
+			i = len;
+	}
+	/*
+	 * No match, return that we scanned the whole area.
+	 */
+	xfs_trans_brelse(tp, bp);
+	*rtblock = start - i + 1;
+	return 0;
+}
+
+/*
+ * Searching forward from start to limit, find the first block whose
+ * allocated/free state is different from start's.
+ */
+STATIC int				/* error */
+xfs_rtfind_forw(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_rtblock_t	start,		/* starting block to look at */
+	xfs_rtblock_t	limit,		/* last block to look at */
+	xfs_rtblock_t	*rtblock)	/* out: start block found */
+{
+	xfs_rtword_t	*b;		/* current word in buffer */
+	int		bit;		/* bit number in the word */
+	xfs_rtblock_t	block;		/* bitmap block number */
+	xfs_buf_t	*bp;		/* buf for the block */
+	xfs_rtword_t	*bufp;		/* starting word in buffer */
+	int		error;		/* error value */
+	xfs_rtblock_t	i;		/* current bit number rel. to start */
+	xfs_rtblock_t	lastbit;	/* last useful bit in the word */
+	xfs_rtblock_t	len;		/* length of inspected area */
+	xfs_rtword_t	mask;		/* mask of relevant bits for value */
+	xfs_rtword_t	want;		/* mask for "good" values */
+	xfs_rtword_t	wdiff;		/* difference from wanted value */
+	int		word;		/* word number in the buffer */
+
+	/*
+	 * Compute and read in starting bitmap block for starting block.
+	 */
+	block = XFS_BITTOBLOCK(mp, start);
+	error = xfs_rtbuf_get(mp, tp, block, 0, &bp);
+	if (error) {
+		return error;
+	}
+	bufp = (xfs_rtword_t *)XFS_BUF_PTR(bp);
+	/*
+	 * Get the first word's index & point to it.
+	 */
+	word = XFS_BITTOWORD(mp, start);
+	b = &bufp[word];
+	bit = (int)(start & (XFS_NBWORD - 1));
+	len = limit - start + 1;
+	/*
+	 * Compute match value, based on the bit at start: if 1 (free)
+	 * then all-ones, else all-zeroes.
+	 */
+	want = (*b & ((xfs_rtword_t)1 << bit)) ? -1 : 0;
+	/*
+	 * If the starting position is not word-aligned, deal with the
+	 * partial word.
+	 */
+	if (bit) {
+		/*
+		 * Calculate last (rightmost) bit number to look at,
+		 * and mask for all the relevant bits in this word.
+		 */
+		lastbit = XFS_RTMIN(bit + len, XFS_NBWORD);
+		mask = (((xfs_rtword_t)1 << (lastbit - bit)) - 1) << bit;
+		/*
+		 * Calculate the difference between the value there
+		 * and what we're looking for.
+		 */
+		if ((wdiff = (*b ^ want) & mask)) {
+			/*
+			 * Different.  Mark where we are and return.
+			 */
+			xfs_trans_brelse(tp, bp);
+			i = XFS_RTLOBIT(wdiff) - bit;
+			*rtblock = start + i - 1;
+			return 0;
+		}
+		i = lastbit - bit;
+		/*
+		 * Go on to next block if that's where the next word is
+		 * and we need the next word.
+		 */
+		if (++word == XFS_BLOCKWSIZE(mp) && i < len) {
+			/*
+			 * If done with this block, get the previous one.
+			 */
+			xfs_trans_brelse(tp, bp);
+			error = xfs_rtbuf_get(mp, tp, ++block, 0, &bp);
+			if (error) {
+				return error;
+			}
+			b = bufp = (xfs_rtword_t *)XFS_BUF_PTR(bp);
+			word = 0;
+		} else {
+			/*
+			 * Go on to the previous word in the buffer.
+			 */
+			b++;
+		}
+	} else {
+		/*
+		 * Starting on a word boundary, no partial word.
+		 */
+		i = 0;
+	}
+	/*
+	 * Loop over whole words in buffers.  When we use up one buffer
+	 * we move on to the next one.
+	 */
+	while (len - i >= XFS_NBWORD) {
+		/*
+		 * Compute difference between actual and desired value.
+		 */
+		if ((wdiff = *b ^ want)) {
+			/*
+			 * Different, mark where we are and return.
+			 */
+			xfs_trans_brelse(tp, bp);
+			i += XFS_RTLOBIT(wdiff);
+			*rtblock = start + i - 1;
+			return 0;
+		}
+		i += XFS_NBWORD;
+		/*
+		 * Go on to next block if that's where the next word is
+		 * and we need the next word.
+		 */
+		if (++word == XFS_BLOCKWSIZE(mp) && i < len) {
+			/*
+			 * If done with this block, get the next one.
+			 */
+			xfs_trans_brelse(tp, bp);
+			error = xfs_rtbuf_get(mp, tp, ++block, 0, &bp);
+			if (error) {
+				return error;
+			}
+			b = bufp = (xfs_rtword_t *)XFS_BUF_PTR(bp);
+			word = 0;
+		} else {
+			/*
+			 * Go on to the next word in the buffer.
+			 */
+			b++;
+		}
+	}
+	/*
+	 * If not ending on a word boundary, deal with the last
+	 * (partial) word.
+	 */
+	if ((lastbit = len - i)) {
+		/*
+		 * Calculate mask for all the relevant bits in this word.
+		 */
+		mask = ((xfs_rtword_t)1 << lastbit) - 1;
+		/*
+		 * Compute difference between actual and desired value.
+		 */
+		if ((wdiff = (*b ^ want) & mask)) {
+			/*
+			 * Different, mark where we are and return.
+			 */
+			xfs_trans_brelse(tp, bp);
+			i += XFS_RTLOBIT(wdiff);
+			*rtblock = start + i - 1;
+			return 0;
+		} else
+			i = len;
+	}
+	/*
+	 * No match, return that we scanned the whole area.
+	 */
+	xfs_trans_brelse(tp, bp);
+	*rtblock = start + i - 1;
+	return 0;
+}
+
+/*
+ * Mark an extent specified by start and len freed.
+ * Updates all the summary information as well as the bitmap.
+ */
+STATIC int				/* error */
+xfs_rtfree_range(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_rtblock_t	start,		/* starting block to free */
+	xfs_extlen_t	len,		/* length to free */
+	xfs_buf_t	**rbpp,		/* in/out: summary block buffer */
+	xfs_fsblock_t	*rsb)		/* in/out: summary block number */
+{
+	xfs_rtblock_t	end;		/* end of the freed extent */
+	int		error;		/* error value */
+	xfs_rtblock_t	postblock;	/* first block freed > end */
+	xfs_rtblock_t	preblock;	/* first block freed < start */
+
+	end = start + len - 1;
+	/*
+	 * Modify the bitmap to mark this extent freed.
+	 */
+	error = xfs_rtmodify_range(mp, tp, start, len, 1);
+	if (error) {
+		return error;
+	}
+	/*
+	 * Assume we're freeing out of the middle of an allocated extent.
+	 * We need to find the beginning and end of the extent so we can
+	 * properly update the summary.
+	 */
+	error = xfs_rtfind_back(mp, tp, start, 0, &preblock);
+	if (error) {
+		return error;
+	}
+	/*
+	 * Find the next allocated block (end of allocated extent).
+	 */
+	error = xfs_rtfind_forw(mp, tp, end, mp->m_sb.sb_rextents - 1,
+		&postblock);
+	/*
+	 * If there are blocks not being freed at the front of the
+	 * old extent, add summary data for them to be allocated.
+	 */
+	if (preblock < start) {
+		error = xfs_rtmodify_summary(mp, tp,
+			XFS_RTBLOCKLOG(start - preblock),
+			XFS_BITTOBLOCK(mp, preblock), -1, rbpp, rsb);
+		if (error) {
+			return error;
+		}
+	}
+	/*
+	 * If there are blocks not being freed at the end of the
+	 * old extent, add summary data for them to be allocated.
+	 */
+	if (postblock > end) {
+		error = xfs_rtmodify_summary(mp, tp,
+			XFS_RTBLOCKLOG(postblock - end),
+			XFS_BITTOBLOCK(mp, end + 1), -1, rbpp, rsb);
+		if (error) {
+			return error;
+		}
+	}
+	/*
+	 * Increment the summary information corresponding to the entire
+	 * (new) free extent.
+	 */
+	error = xfs_rtmodify_summary(mp, tp,
+		XFS_RTBLOCKLOG(postblock + 1 - preblock),
+		XFS_BITTOBLOCK(mp, preblock), 1, rbpp, rsb);
+	return error;
+}
+
+/*
+ * Read and return the summary information for a given extent size,
+ * bitmap block combination.
+ * Keeps track of a current summary block, so we don't keep reading
+ * it from the buffer cache.
+ */
+STATIC int				/* error */
+xfs_rtget_summary(
+	xfs_mount_t	*mp,		/* file system mount structure */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	int		log,		/* log2 of extent size */
+	xfs_rtblock_t	bbno,		/* bitmap block number */
+	xfs_buf_t	**rbpp,		/* in/out: summary block buffer */
+	xfs_fsblock_t	*rsb,		/* in/out: summary block number */
+	xfs_suminfo_t	*sum)		/* out: summary info for this block */
+{
+	xfs_buf_t	*bp;		/* buffer for summary block */
+	int		error;		/* error value */
+	xfs_fsblock_t	sb;		/* summary fsblock */
+	int		so;		/* index into the summary file */
+	xfs_suminfo_t	*sp;		/* pointer to returned data */
+
+	/*
+	 * Compute entry number in the summary file.
+	 */
+	so = XFS_SUMOFFS(mp, log, bbno);
+	/*
+	 * Compute the block number in the summary file.
+	 */
+	sb = XFS_SUMOFFSTOBLOCK(mp, so);
+	/*
+	 * If we have an old buffer, and the block number matches, use that.
+	 */
+	if (rbpp && *rbpp && *rsb == sb)
+		bp = *rbpp;
+	/*
+	 * Otherwise we have to get the buffer.
+	 */
+	else {
+		/*
+		 * If there was an old one, get rid of it first.
+		 */
+		if (rbpp && *rbpp)
+			xfs_trans_brelse(tp, *rbpp);
+		error = xfs_rtbuf_get(mp, tp, sb, 1, &bp);
+		if (error) {
+			return error;
+		}
+		/*
+		 * Remember this buffer and block for the next call.
+		 */
+		if (rbpp) {
+			*rbpp = bp;
+			*rsb = sb;
+		}
+	}
+	/*
+	 * Point to the summary information & copy it out.
+	 */
+	sp = XFS_SUMPTR(mp, bp, so);
+	*sum = *sp;
+	/*
+	 * Drop the buffer if we're not asked to remember it.
+	 */
+	if (!rbpp)
+		xfs_trans_brelse(tp, bp);
+	return 0;
+}
+
+/*
+ * Set the given range of bitmap bits to the given value.
+ * Do whatever I/O and logging is required.
+ */
+STATIC int				/* error */
+xfs_rtmodify_range(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_rtblock_t	start,		/* starting block to modify */
+	xfs_extlen_t	len,		/* length of extent to modify */
+	int		val)		/* 1 for free, 0 for allocated */
+{
+	xfs_rtword_t	*b;		/* current word in buffer */
+	int		bit;		/* bit number in the word */
+	xfs_rtblock_t	block;		/* bitmap block number */
+	xfs_buf_t	*bp;		/* buf for the block */
+	xfs_rtword_t	*bufp;		/* starting word in buffer */
+	int		error;		/* error value */
+	xfs_rtword_t	*first;		/* first used word in the buffer */
+	int		i;		/* current bit number rel. to start */
+	int		lastbit;	/* last useful bit in word */
+	xfs_rtword_t	mask;		/* mask o frelevant bits for value */
+	int		word;		/* word number in the buffer */
+
+	/*
+	 * Compute starting bitmap block number.
+	 */
+	block = XFS_BITTOBLOCK(mp, start);
+	/*
+	 * Read the bitmap block, and point to its data.
+	 */
+	error = xfs_rtbuf_get(mp, tp, block, 0, &bp);
+	if (error) {
+		return error;
+	}
+	bufp = (xfs_rtword_t *)XFS_BUF_PTR(bp);
+	/*
+	 * Compute the starting word's address, and starting bit.
+	 */
+	word = XFS_BITTOWORD(mp, start);
+	first = b = &bufp[word];
+	bit = (int)(start & (XFS_NBWORD - 1));
+	/*
+	 * 0 (allocated) => all zeroes; 1 (free) => all ones.
+	 */
+	val = -val;
+	/*
+	 * If not starting on a word boundary, deal with the first
+	 * (partial) word.
+	 */
+	if (bit) {
+		/*
+		 * Compute first bit not changed and mask of relevant bits.
+		 */
+		lastbit = XFS_RTMIN(bit + len, XFS_NBWORD);
+		mask = (((xfs_rtword_t)1 << (lastbit - bit)) - 1) << bit;
+		/*
+		 * Set/clear the active bits.
+		 */
+		if (val)
+			*b |= mask;
+		else
+			*b &= ~mask;
+		i = lastbit - bit;
+		/*
+		 * Go on to the next block if that's where the next word is
+		 * and we need the next word.
+		 */
+		if (++word == XFS_BLOCKWSIZE(mp) && i < len) {
+			/*
+			 * Log the changed part of this block.
+			 * Get the next one.
+			 */
+			xfs_trans_log_buf(tp, bp,
+				(uint)((char *)first - (char *)bufp),
+				(uint)((char *)b - (char *)bufp));
+			error = xfs_rtbuf_get(mp, tp, ++block, 0, &bp);
+			if (error) {
+				return error;
+			}
+			first = b = bufp = (xfs_rtword_t *)XFS_BUF_PTR(bp);
+			word = 0;
+		} else {
+			/*
+			 * Go on to the next word in the buffer
+			 */
+			b++;
+		}
+	} else {
+		/*
+		 * Starting on a word boundary, no partial word.
+		 */
+		i = 0;
+	}
+	/*
+	 * Loop over whole words in buffers.  When we use up one buffer
+	 * we move on to the next one.
+	 */
+	while (len - i >= XFS_NBWORD) {
+		/*
+		 * Set the word value correctly.
+		 */
+		*b = val;
+		i += XFS_NBWORD;
+		/*
+		 * Go on to the next block if that's where the next word is
+		 * and we need the next word.
+		 */
+		if (++word == XFS_BLOCKWSIZE(mp) && i < len) {
+			/*
+			 * Log the changed part of this block.
+			 * Get the next one.
+			 */
+			xfs_trans_log_buf(tp, bp,
+				(uint)((char *)first - (char *)bufp),
+				(uint)((char *)b - (char *)bufp));
+			error = xfs_rtbuf_get(mp, tp, ++block, 0, &bp);
+			if (error) {
+				return error;
+			}
+			first = b = bufp = (xfs_rtword_t *)XFS_BUF_PTR(bp);
+			word = 0;
+		} else {
+			/*
+			 * Go on to the next word in the buffer
+			 */
+			b++;
+		}
+	}
+	/*
+	 * If not ending on a word boundary, deal with the last
+	 * (partial) word.
+	 */
+	if ((lastbit = len - i)) {
+		/*
+		 * Compute a mask of relevant bits.
+		 */
+		bit = 0;
+		mask = ((xfs_rtword_t)1 << lastbit) - 1;
+		/*
+		 * Set/clear the active bits.
+		 */
+		if (val)
+			*b |= mask;
+		else
+			*b &= ~mask;
+		b++;
+	}
+	/*
+	 * Log any remaining changed bytes.
+	 */
+	if (b > first)
+		xfs_trans_log_buf(tp, bp, (uint)((char *)first - (char *)bufp),
+			(uint)((char *)b - (char *)bufp - 1));
+	return 0;
+}
+
+/*
+ * Read and modify the summary information for a given extent size,
+ * bitmap block combination.
+ * Keeps track of a current summary block, so we don't keep reading
+ * it from the buffer cache.
+ */
+STATIC int				/* error */
+xfs_rtmodify_summary(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	int		log,		/* log2 of extent size */
+	xfs_rtblock_t	bbno,		/* bitmap block number */
+	int		delta,		/* change to make to summary info */
+	xfs_buf_t	**rbpp,		/* in/out: summary block buffer */
+	xfs_fsblock_t	*rsb)		/* in/out: summary block number */
+{
+	xfs_buf_t	*bp;		/* buffer for the summary block */
+	int		error;		/* error value */
+	xfs_fsblock_t	sb;		/* summary fsblock */
+	int		so;		/* index into the summary file */
+	xfs_suminfo_t	*sp;		/* pointer to returned data */
+
+	/*
+	 * Compute entry number in the summary file.
+	 */
+	so = XFS_SUMOFFS(mp, log, bbno);
+	/*
+	 * Compute the block number in the summary file.
+	 */
+	sb = XFS_SUMOFFSTOBLOCK(mp, so);
+	/*
+	 * If we have an old buffer, and the block number matches, use that.
+	 */
+	if (rbpp && *rbpp && *rsb == sb)
+		bp = *rbpp;
+	/*
+	 * Otherwise we have to get the buffer.
+	 */
+	else {
+		/*
+		 * If there was an old one, get rid of it first.
+		 */
+		if (rbpp && *rbpp)
+			xfs_trans_brelse(tp, *rbpp);
+		error = xfs_rtbuf_get(mp, tp, sb, 1, &bp);
+		if (error) {
+			return error;
+		}
+		/*
+		 * Remember this buffer and block for the next call.
+		 */
+		if (rbpp) {
+			*rbpp = bp;
+			*rsb = sb;
+		}
+	}
+	/*
+	 * Point to the summary information, modify and log it.
+	 */
+	sp = XFS_SUMPTR(mp, bp, so);
+	*sp += delta;
+	xfs_trans_log_buf(tp, bp, (uint)((char *)sp - (char *)XFS_BUF_PTR(bp)),
+		(uint)((char *)sp - (char *)XFS_BUF_PTR(bp) + sizeof(*sp) - 1));
+	return 0;
+}
+
+/*
+ * Visible (exported) functions.
+ */
+
+/*
+ * Grow the realtime area of the filesystem.
+ */
+int
+xfs_growfs_rt(
+	xfs_mount_t	*mp,		/* mount point for filesystem */
+	xfs_growfs_rt_t	*in)		/* growfs rt input struct */
+{
+	xfs_rtblock_t	bmbno;		/* bitmap block number */
+	xfs_buf_t	*bp;		/* temporary buffer */
+	int		cancelflags;	/* flags for xfs_trans_cancel */
+	int		error;		/* error return value */
+	xfs_inode_t	*ip;		/* bitmap inode, used as lock */
+	xfs_mount_t	*nmp;		/* new (fake) mount structure */
+	xfs_drfsbno_t	nrblocks;	/* new number of realtime blocks */
+	xfs_extlen_t	nrbmblocks;	/* new number of rt bitmap blocks */
+	xfs_drtbno_t	nrextents;	/* new number of realtime extents */
+	uint8_t		nrextslog;	/* new log2 of sb_rextents */
+	xfs_extlen_t	nrsumblocks;	/* new number of summary blocks */
+	uint		nrsumlevels;	/* new rt summary levels */
+	uint		nrsumsize;	/* new size of rt summary, bytes */
+	xfs_sb_t	*nsbp;		/* new superblock */
+	xfs_extlen_t	rbmblocks;	/* current number of rt bitmap blocks */
+	xfs_extlen_t	rsumblocks;	/* current number of rt summary blks */
+	xfs_sb_t	*sbp;		/* old superblock */
+	xfs_fsblock_t	sumbno;		/* summary block number */
+	xfs_trans_t	*tp;		/* transaction pointer */
+
+	sbp = &mp->m_sb;
+	/*
+	 * Initial error checking.
+	 */
+	if (mp->m_rtdev_targp || mp->m_rbmip == NULL ||
+	    (nrblocks = in->newblocks) <= sbp->sb_rblocks ||
+	    (sbp->sb_rblocks && (in->extsize != sbp->sb_rextsize)))
+		return XFS_ERROR(EINVAL);
+	/*
+	 * Read in the last block of the device, make sure it exists.
+	 */
+	error = xfs_read_buf(mp, mp->m_rtdev_targp,
+			XFS_FSB_TO_BB(mp, in->newblocks - 1),
+			XFS_FSB_TO_BB(mp, 1), 0, &bp);
+	if (error)
+		return error;
+	ASSERT(bp);
+	xfs_buf_relse(bp);
+	/*
+	 * Calculate new parameters.  These are the final values to be reached.
+	 */
+	nrextents = nrblocks;
+	do_div(nrextents, in->extsize);
+	nrbmblocks = roundup_64(nrextents, NBBY * sbp->sb_blocksize);
+	nrextslog = xfs_highbit32(nrextents);
+	nrsumlevels = nrextslog + 1;
+	nrsumsize = (uint)sizeof(xfs_suminfo_t) * nrsumlevels * nrbmblocks;
+	nrsumblocks = XFS_B_TO_FSB(mp, nrsumsize);
+	nrsumsize = XFS_FSB_TO_B(mp, nrsumblocks);
+	/*
+	 * New summary size can't be more than half the size of
+	 * the log.  This prevents us from getting a log overflow,
+	 * since we'll log basically the whole summary file at once.
+	 */
+	if (nrsumblocks > (mp->m_sb.sb_logblocks >> 1))
+		return XFS_ERROR(EINVAL);
+	/*
+	 * Get the old block counts for bitmap and summary inodes.
+	 * These can't change since other growfs callers are locked out.
+	 */
+	rbmblocks = XFS_B_TO_FSB(mp, mp->m_rbmip->i_d.di_size);
+	rsumblocks = XFS_B_TO_FSB(mp, mp->m_rsumip->i_d.di_size);
+	/*
+	 * Allocate space to the bitmap and summary files, as necessary.
+	 */
+	if ((error = xfs_growfs_rt_alloc(mp, rbmblocks, nrbmblocks,
+			mp->m_sb.sb_rbmino)))
+		return error;
+	if ((error = xfs_growfs_rt_alloc(mp, rsumblocks, nrsumblocks,
+			mp->m_sb.sb_rsumino)))
+		return error;
+	nmp = NULL;
+	/*
+	 * Loop over the bitmap blocks.
+	 * We will do everything one bitmap block at a time.
+	 * Skip the current block if it is exactly full.
+	 * This also deals with the case where there were no rtextents before.
+	 */
+	for (bmbno = sbp->sb_rbmblocks -
+		     ((sbp->sb_rextents & ((1 << mp->m_blkbit_log) - 1)) != 0);
+	     bmbno < nrbmblocks;
+	     bmbno++) {
+		/*
+		 * Allocate a new (fake) mount/sb.
+		 */
+		nmp = kmem_alloc(sizeof(*nmp), KM_SLEEP);
+		*nmp = *mp;
+		nsbp = &nmp->m_sb;
+		/*
+		 * Calculate new sb and mount fields for this round.
+		 */
+		nsbp->sb_rextsize = in->extsize;
+		nsbp->sb_rbmblocks = bmbno + 1;
+		nsbp->sb_rblocks =
+			XFS_RTMIN(nrblocks,
+				  nsbp->sb_rbmblocks * NBBY *
+				  nsbp->sb_blocksize * nsbp->sb_rextsize);
+		nsbp->sb_rextents = nsbp->sb_rblocks;
+		do_div(nsbp->sb_rextents, nsbp->sb_rextsize);
+		nsbp->sb_rextslog = xfs_highbit32(nsbp->sb_rextents);
+		nrsumlevels = nmp->m_rsumlevels = nsbp->sb_rextslog + 1;
+		nrsumsize =
+			(uint)sizeof(xfs_suminfo_t) * nrsumlevels *
+			nsbp->sb_rbmblocks;
+		nrsumblocks = XFS_B_TO_FSB(mp, nrsumsize);
+		nmp->m_rsumsize = nrsumsize = XFS_FSB_TO_B(mp, nrsumblocks);
+		/*
+		 * Start a transaction, get the log reservation.
+		 */
+		tp = xfs_trans_alloc(mp, XFS_TRANS_GROWFSRT_FREE);
+		cancelflags = 0;
+		if ((error = xfs_trans_reserve(tp, 0,
+				XFS_GROWRTFREE_LOG_RES(nmp), 0, 0, 0)))
+			goto error_exit;
+		/*
+		 * Lock out other callers by grabbing the bitmap inode lock.
+		 */
+		if ((error = xfs_trans_iget(mp, tp, 0, mp->m_sb.sb_rbmino,
+				XFS_ILOCK_EXCL, &ip)))
+			goto error_exit;
+		ASSERT(ip == mp->m_rbmip);
+		/*
+		 * Update the bitmap inode's size.
+		 */
+		mp->m_rbmip->i_d.di_size =
+			nsbp->sb_rbmblocks * nsbp->sb_blocksize;
+		xfs_trans_log_inode(tp, mp->m_rbmip, XFS_ILOG_CORE);
+		cancelflags |= XFS_TRANS_ABORT;
+		/*
+		 * Get the summary inode into the transaction.
+		 */
+		if ((error = xfs_trans_iget(mp, tp, mp->m_sb.sb_rsumino,
+				0, XFS_ILOCK_EXCL, &ip)))
+			goto error_exit;
+		ASSERT(ip == mp->m_rsumip);
+		/*
+		 * Update the summary inode's size.
+		 */
+		mp->m_rsumip->i_d.di_size = nmp->m_rsumsize;
+		xfs_trans_log_inode(tp, mp->m_rsumip, XFS_ILOG_CORE);
+		/*
+		 * Copy summary data from old to new sizes.
+		 * Do this when the real size (not block-aligned) changes.
+		 */
+		if (sbp->sb_rbmblocks != nsbp->sb_rbmblocks ||
+		    mp->m_rsumlevels != nmp->m_rsumlevels) {
+			error = xfs_rtcopy_summary(mp, nmp, tp);
+			if (error)
+				goto error_exit;
+		}
+		/*
+		 * Update superblock fields.
+		 */
+		if (nsbp->sb_rextsize != sbp->sb_rextsize)
+			xfs_trans_mod_sb(tp, XFS_TRANS_SB_REXTSIZE,
+				nsbp->sb_rextsize - sbp->sb_rextsize);
+		if (nsbp->sb_rbmblocks != sbp->sb_rbmblocks)
+			xfs_trans_mod_sb(tp, XFS_TRANS_SB_RBMBLOCKS,
+				nsbp->sb_rbmblocks - sbp->sb_rbmblocks);
+		if (nsbp->sb_rblocks != sbp->sb_rblocks)
+			xfs_trans_mod_sb(tp, XFS_TRANS_SB_RBLOCKS,
+				nsbp->sb_rblocks - sbp->sb_rblocks);
+		if (nsbp->sb_rextents != sbp->sb_rextents)
+			xfs_trans_mod_sb(tp, XFS_TRANS_SB_REXTENTS,
+				nsbp->sb_rextents - sbp->sb_rextents);
+		if (nsbp->sb_rextslog != sbp->sb_rextslog)
+			xfs_trans_mod_sb(tp, XFS_TRANS_SB_REXTSLOG,
+				nsbp->sb_rextslog - sbp->sb_rextslog);
+		/*
+		 * Free new extent.
+		 */
+		bp = NULL;
+		error = xfs_rtfree_range(nmp, tp, sbp->sb_rextents,
+			nsbp->sb_rextents - sbp->sb_rextents, &bp, &sumbno);
+		if (error)
+			goto error_exit;
+		/*
+		 * Mark more blocks free in the superblock.
+		 */
+		xfs_trans_mod_sb(tp, XFS_TRANS_SB_FREXTENTS,
+			nsbp->sb_rextents - sbp->sb_rextents);
+		/*
+		 * Free the fake mp structure.
+		 */
+		kmem_free(nmp, sizeof(*nmp));
+		nmp = NULL;
+		/*
+		 * Update mp values into the real mp structure.
+		 */
+		mp->m_rsumlevels = nrsumlevels;
+		mp->m_rsumsize = nrsumsize;
+		/*
+		 * Commit the transaction.
+		 */
+		xfs_trans_commit(tp, 0, NULL);
+	}
+	return 0;
+
+	/*
+	 * Error paths come here.
+	 */
+error_exit:
+	if (nmp)
+		kmem_free(nmp, sizeof(*nmp));
+	xfs_trans_cancel(tp, cancelflags);
+	return error;
+}
+
+/*
+ * Allocate an extent in the realtime subvolume, with the usual allocation
+ * parameters.  The length units are all in realtime extents, as is the
+ * result block number.
+ */
+int					/* error */
+xfs_rtallocate_extent(
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_rtblock_t	bno,		/* starting block number to allocate */
+	xfs_extlen_t	minlen,		/* minimum length to allocate */
+	xfs_extlen_t	maxlen,		/* maximum length to allocate */
+	xfs_extlen_t	*len,		/* out: actual length allocated */
+	xfs_alloctype_t	type,		/* allocation type XFS_ALLOCTYPE... */
+	int		wasdel,		/* was a delayed allocation extent */
+	xfs_extlen_t	prod,		/* extent product factor */
+	xfs_rtblock_t	*rtblock)	/* out: start block allocated */
+{
+	int		error;		/* error value */
+	xfs_inode_t	*ip;		/* inode for bitmap file */
+	xfs_mount_t	*mp;		/* file system mount structure */
+	xfs_rtblock_t	r;		/* result allocated block */
+	xfs_fsblock_t	sb;		/* summary file block number */
+	xfs_buf_t	*sumbp;		/* summary file block buffer */
+
+	ASSERT(minlen > 0 && minlen <= maxlen);
+	mp = tp->t_mountp;
+	/*
+	 * If prod is set then figure out what to do to minlen and maxlen.
+	 */
+	if (prod > 1) {
+		xfs_extlen_t	i;
+
+		if ((i = maxlen % prod))
+			maxlen -= i;
+		if ((i = minlen % prod))
+			minlen += prod - i;
+		if (maxlen < minlen) {
+			*rtblock = NULLRTBLOCK;
+			return 0;
+		}
+	}
+	/*
+	 * Lock out other callers by grabbing the bitmap inode lock.
+	 */
+	error = xfs_trans_iget(mp, tp, mp->m_sb.sb_rbmino, 0, XFS_ILOCK_EXCL, &ip);
+	if (error) {
+		return error;
+	}
+	sumbp = NULL;
+	/*
+	 * Allocate by size, or near another block, or exactly at some block.
+	 */
+	switch (type) {
+	case XFS_ALLOCTYPE_ANY_AG:
+		error = xfs_rtallocate_extent_size(mp, tp, minlen, maxlen, len,
+				&sumbp,	&sb, prod, &r);
+		break;
+	case XFS_ALLOCTYPE_NEAR_BNO:
+		error = xfs_rtallocate_extent_near(mp, tp, bno, minlen, maxlen,
+				len, &sumbp, &sb, prod, &r);
+		break;
+	case XFS_ALLOCTYPE_THIS_BNO:
+		error = xfs_rtallocate_extent_exact(mp, tp, bno, minlen, maxlen,
+				len, &sumbp, &sb, prod, &r);
+		break;
+	default:
+		ASSERT(0);
+	}
+	if (error) {
+		return error;
+	}
+	/*
+	 * If it worked, update the superblock.
+	 */
+	if (r != NULLRTBLOCK) {
+		long	slen = (long)*len;
+
+		ASSERT(*len >= minlen && *len <= maxlen);
+		if (wasdel)
+			xfs_trans_mod_sb(tp, XFS_TRANS_SB_RES_FREXTENTS, -slen);
+		else
+			xfs_trans_mod_sb(tp, XFS_TRANS_SB_FREXTENTS, -slen);
+	}
+	*rtblock = r;
+	return 0;
+}
+
+/*
+ * Free an extent in the realtime subvolume.  Length is expressed in
+ * realtime extents, as is the block number.
+ */
+int					/* error */
+xfs_rtfree_extent(
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_rtblock_t	bno,		/* starting block number to free */
+	xfs_extlen_t	len)		/* length of extent freed */
+{
+	int		error;		/* error value */
+	xfs_inode_t	*ip;		/* bitmap file inode */
+	xfs_mount_t	*mp;		/* file system mount structure */
+	xfs_fsblock_t	sb;		/* summary file block number */
+	xfs_buf_t	*sumbp;		/* summary file block buffer */
+
+	mp = tp->t_mountp;
+	/*
+	 * Synchronize by locking the bitmap inode.
+	 */
+	error = xfs_trans_iget(mp, tp, mp->m_sb.sb_rbmino, 0, XFS_ILOCK_EXCL, &ip);
+	if (error) {
+		return error;
+	}
+#if defined(__KERNEL__) && defined(DEBUG)
+	/*
+	 * Check to see that this whole range is currently allocated.
+	 */
+	{
+		int	stat;		/* result from checking range */
+
+		error = xfs_rtcheck_alloc_range(mp, tp, bno, len, &stat);
+		if (error) {
+			return error;
+		}
+		ASSERT(stat);
+	}
+#endif
+	sumbp = NULL;
+	/*
+	 * Free the range of realtime blocks.
+	 */
+	error = xfs_rtfree_range(mp, tp, bno, len, &sumbp, &sb);
+	if (error) {
+		return error;
+	}
+	/*
+	 * Mark more blocks free in the superblock.
+	 */
+	xfs_trans_mod_sb(tp, XFS_TRANS_SB_FREXTENTS, (long)len);
+	/*
+	 * If we've now freed all the blocks, reset the file sequence
+	 * number to 0.
+	 */
+	if (tp->t_frextents_delta + mp->m_sb.sb_frextents ==
+	    mp->m_sb.sb_rextents) {
+		if (!(ip->i_d.di_flags & XFS_DIFLAG_NEWRTBM))
+			ip->i_d.di_flags |= XFS_DIFLAG_NEWRTBM;
+		*(__uint64_t *)&ip->i_d.di_atime = 0;
+		xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+	}
+	return 0;
+}
+
+/*
+ * Initialize realtime fields in the mount structure.
+ */
+int				/* error */
+xfs_rtmount_init(
+	xfs_mount_t	*mp)	/* file system mount structure */
+{
+	xfs_buf_t	*bp;	/* buffer for last block of subvolume */
+	xfs_daddr_t	d;	/* address of last block of subvolume */
+	int		error;	/* error return value */
+	xfs_sb_t	*sbp;	/* filesystem superblock copy in mount */
+
+	sbp = &mp->m_sb;
+	if (sbp->sb_rblocks == 0)
+		return 0;
+	if (mp->m_rtdev_targp == NULL) {
+		cmn_err(CE_WARN,
+	"XFS: This filesystem has a realtime volume, use rtdev=device option");
+		return XFS_ERROR(ENODEV);
+	}
+	mp->m_rsumlevels = sbp->sb_rextslog + 1;
+	mp->m_rsumsize =
+		(uint)sizeof(xfs_suminfo_t) * mp->m_rsumlevels *
+		sbp->sb_rbmblocks;
+	mp->m_rsumsize = roundup(mp->m_rsumsize, sbp->sb_blocksize);
+	mp->m_rbmip = mp->m_rsumip = NULL;
+	/*
+	 * Check that the realtime section is an ok size.
+	 */
+	d = (xfs_daddr_t)XFS_FSB_TO_BB(mp, mp->m_sb.sb_rblocks);
+	if (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_rblocks) {
+		cmn_err(CE_WARN, "XFS: realtime mount -- %llu != %llu",
+			(unsigned long long) XFS_BB_TO_FSB(mp, d),
+			(unsigned long long) mp->m_sb.sb_rblocks);
+		return XFS_ERROR(E2BIG);
+	}
+	error = xfs_read_buf(mp, mp->m_rtdev_targp,
+				d - XFS_FSB_TO_BB(mp, 1),
+				XFS_FSB_TO_BB(mp, 1), 0, &bp);
+	if (error) {
+		cmn_err(CE_WARN,
+	"XFS: realtime mount -- xfs_read_buf failed, returned %d", error);
+		if (error == ENOSPC)
+			return XFS_ERROR(E2BIG);
+		return error;
+	}
+	xfs_buf_relse(bp);
+	return 0;
+}
+
+/*
+ * Get the bitmap and summary inodes into the mount structure
+ * at mount time.
+ */
+int					/* error */
+xfs_rtmount_inodes(
+	xfs_mount_t	*mp)		/* file system mount structure */
+{
+	int		error;		/* error return value */
+	xfs_sb_t	*sbp;
+
+	sbp = &mp->m_sb;
+	if (sbp->sb_rbmino == NULLFSINO)
+		return 0;
+	error = xfs_iget(mp, NULL, sbp->sb_rbmino, 0, 0, &mp->m_rbmip, 0);
+	if (error)
+		return error;
+	ASSERT(mp->m_rbmip != NULL);
+	ASSERT(sbp->sb_rsumino != NULLFSINO);
+	error = xfs_iget(mp, NULL, sbp->sb_rsumino, 0, 0, &mp->m_rsumip, 0);
+	if (error) {
+		VN_RELE(XFS_ITOV(mp->m_rbmip));
+		return error;
+	}
+	ASSERT(mp->m_rsumip != NULL);
+	return 0;
+}
+
+/*
+ * Pick an extent for allocation at the start of a new realtime file.
+ * Use the sequence number stored in the atime field of the bitmap inode.
+ * Translate this to a fraction of the rtextents, and return the product
+ * of rtextents and the fraction.
+ * The fraction sequence is 0, 1/2, 1/4, 3/4, 1/8, ..., 7/8, 1/16, ...
+ */
+int					/* error */
+xfs_rtpick_extent(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_extlen_t	len,		/* allocation length (rtextents) */
+	xfs_rtblock_t	*pick)		/* result rt extent */
+{
+	xfs_rtblock_t	b;		/* result block */
+	int		error;		/* error return value */
+	xfs_inode_t	*ip;		/* bitmap incore inode */
+	int		log2;		/* log of sequence number */
+	__uint64_t	resid;		/* residual after log removed */
+	__uint64_t	seq;		/* sequence number of file creation */
+	__uint64_t	*seqp;		/* pointer to seqno in inode */
+
+	error = xfs_trans_iget(mp, tp, mp->m_sb.sb_rbmino, 0, XFS_ILOCK_EXCL, &ip);
+	if (error)
+		return error;
+	ASSERT(ip == mp->m_rbmip);
+	seqp = (__uint64_t *)&ip->i_d.di_atime;
+	if (!(ip->i_d.di_flags & XFS_DIFLAG_NEWRTBM)) {
+		ip->i_d.di_flags |= XFS_DIFLAG_NEWRTBM;
+		*seqp = 0;
+	}
+	seq = *seqp;
+	if ((log2 = xfs_highbit64(seq)) == -1)
+		b = 0;
+	else {
+		resid = seq - (1ULL << log2);
+		b = (mp->m_sb.sb_rextents * ((resid << 1) + 1ULL)) >>
+		    (log2 + 1);
+		if (b >= mp->m_sb.sb_rextents)
+			b = do_mod(b, mp->m_sb.sb_rextents);
+		if (b + len > mp->m_sb.sb_rextents)
+			b = mp->m_sb.sb_rextents - len;
+	}
+	*seqp = seq + 1;
+	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+	*pick = b;
+	return 0;
+}
+
+#ifdef DEBUG
+/*
+ * Debug code: print out the value of a range in the bitmap.
+ */
+void
+xfs_rtprint_range(
+	xfs_mount_t	*mp,		/* file system mount structure */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_rtblock_t	start,		/* starting block to print */
+	xfs_extlen_t	len)		/* length to print */
+{
+	xfs_extlen_t	i;		/* block number in the extent */
+
+	printk("%Ld: ", (long long)start);
+	for (i = 0; i < len; i++)
+		printk("%d", xfs_rtcheck_bit(mp, tp, start + i, 1));
+	printk("\n");
+}
+
+/*
+ * Debug code: print the summary file.
+ */
+void
+xfs_rtprint_summary(
+	xfs_mount_t	*mp,		/* file system mount structure */
+	xfs_trans_t	*tp)		/* transaction pointer */
+{
+	xfs_suminfo_t	c;		/* summary data */
+	xfs_rtblock_t	i;		/* bitmap block number */
+	int		l;		/* summary information level */
+	int		p;		/* flag for printed anything */
+	xfs_fsblock_t	sb;		/* summary block number */
+	xfs_buf_t	*sumbp;		/* summary block buffer */
+
+	sumbp = NULL;
+	for (l = 0; l < mp->m_rsumlevels; l++) {
+		for (p = 0, i = 0; i < mp->m_sb.sb_rbmblocks; i++) {
+			(void)xfs_rtget_summary(mp, tp, l, i, &sumbp, &sb, &c);
+			if (c) {
+				if (!p) {
+					printk("%Ld-%Ld:", 1LL << l,
+						XFS_RTMIN((1LL << l) +
+							  ((1LL << l) - 1LL),
+							 mp->m_sb.sb_rextents));
+					p = 1;
+				}
+				printk(" %Ld:%d", (long long)i, c);
+			}
+		}
+		if (p)
+			printk("\n");
+	}
+	if (sumbp)
+		xfs_trans_brelse(tp, sumbp);
+}
+#endif	/* DEBUG */
diff --git a/fs/xfs/xfs_rtalloc.h b/fs/xfs/xfs_rtalloc.h
new file mode 100644
index 00000000000000..e2710264c0544a
--- /dev/null
+++ b/fs/xfs/xfs_rtalloc.h
@@ -0,0 +1,187 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_RTALLOC_H__
+#define	__XFS_RTALLOC_H__
+
+struct xfs_mount;
+struct xfs_trans;
+
+#define XFS_IS_REALTIME_INODE(ip) ((ip)->i_d.di_flags & XFS_DIFLAG_REALTIME)
+
+/* Min and max rt extent sizes, specified in bytes */
+#define	XFS_MAX_RTEXTSIZE	(1024 * 1024 * 1024)	/* 1GB */
+#define	XFS_DFL_RTEXTSIZE	(64 * 1024)	        /* 64KB */
+#define	XFS_MIN_RTEXTSIZE	(4 * 1024)		/* 4KB */
+
+/*
+ * Constants for bit manipulations.
+ */
+#define	XFS_NBBYLOG	3		/* log2(NBBY) */
+#define	XFS_WORDLOG	2		/* log2(sizeof(xfs_rtword_t)) */
+#define	XFS_NBWORDLOG	(XFS_NBBYLOG + XFS_WORDLOG)
+#define	XFS_NBWORD	(1 << XFS_NBWORDLOG)
+#define	XFS_WORDMASK	((1 << XFS_WORDLOG) - 1)
+
+#define	XFS_BLOCKSIZE(mp)	((mp)->m_sb.sb_blocksize)
+#define	XFS_BLOCKMASK(mp)	((mp)->m_blockmask)
+#define	XFS_BLOCKWSIZE(mp)	((mp)->m_blockwsize)
+#define	XFS_BLOCKWMASK(mp)	((mp)->m_blockwmask)
+
+/*
+ * Summary and bit manipulation macros.
+ */
+#define	XFS_SUMOFFS(mp,ls,bb)	((int)((ls) * (mp)->m_sb.sb_rbmblocks + (bb)))
+#define	XFS_SUMOFFSTOBLOCK(mp,s)	\
+	(((s) * (uint)sizeof(xfs_suminfo_t)) >> (mp)->m_sb.sb_blocklog)
+#define	XFS_SUMPTR(mp,bp,so)	\
+	((xfs_suminfo_t *)((char *)XFS_BUF_PTR(bp) + \
+		(((so) * (uint)sizeof(xfs_suminfo_t)) & XFS_BLOCKMASK(mp))))
+
+#define	XFS_BITTOBLOCK(mp,bi)	((bi) >> (mp)->m_blkbit_log)
+#define	XFS_BLOCKTOBIT(mp,bb)	((bb) << (mp)->m_blkbit_log)
+#define	XFS_BITTOWORD(mp,bi)	\
+	((int)(((bi) >> XFS_NBWORDLOG) & XFS_BLOCKWMASK(mp)))
+
+#define	XFS_RTMIN(a,b)	((a) < (b) ? (a) : (b))
+#define	XFS_RTMAX(a,b)	((a) > (b) ? (a) : (b))
+
+#define	XFS_RTLOBIT(w)	xfs_lowbit32(w)
+#define	XFS_RTHIBIT(w)	xfs_highbit32(w)
+
+#if XFS_BIG_BLKNOS
+#define	XFS_RTBLOCKLOG(b)	xfs_highbit64(b)
+#else
+#define	XFS_RTBLOCKLOG(b)	xfs_highbit32(b)
+#endif
+
+
+#ifdef __KERNEL__
+
+#ifdef CONFIG_XFS_RT
+/*
+ * Function prototypes for exported functions.
+ */
+
+/*
+ * Allocate an extent in the realtime subvolume, with the usual allocation
+ * parameters.  The length units are all in realtime extents, as is the
+ * result block number.
+ */
+int					/* error */
+xfs_rtallocate_extent(
+	struct xfs_trans	*tp,	/* transaction pointer */
+	xfs_rtblock_t		bno,	/* starting block number to allocate */
+	xfs_extlen_t		minlen,	/* minimum length to allocate */
+	xfs_extlen_t		maxlen,	/* maximum length to allocate */
+	xfs_extlen_t		*len,	/* out: actual length allocated */
+	xfs_alloctype_t		type,	/* allocation type XFS_ALLOCTYPE... */
+	int			wasdel,	/* was a delayed allocation extent */
+	xfs_extlen_t		prod,	/* extent product factor */
+	xfs_rtblock_t		*rtblock); /* out: start block allocated */
+
+/*
+ * Free an extent in the realtime subvolume.  Length is expressed in
+ * realtime extents, as is the block number.
+ */
+int					/* error */
+xfs_rtfree_extent(
+	struct xfs_trans	*tp,	/* transaction pointer */
+	xfs_rtblock_t		bno,	/* starting block number to free */
+	xfs_extlen_t		len);	/* length of extent freed */
+
+/*
+ * Initialize realtime fields in the mount structure.
+ */
+int					/* error */
+xfs_rtmount_init(
+	struct xfs_mount	*mp);	/* file system mount structure */
+
+/*
+ * Get the bitmap and summary inodes into the mount structure
+ * at mount time.
+ */
+int					/* error */
+xfs_rtmount_inodes(
+	struct xfs_mount	*mp);	/* file system mount structure */
+
+/*
+ * Pick an extent for allocation at the start of a new realtime file.
+ * Use the sequence number stored in the atime field of the bitmap inode.
+ * Translate this to a fraction of the rtextents, and return the product
+ * of rtextents and the fraction.
+ * The fraction sequence is 0, 1/2, 1/4, 3/4, 1/8, ..., 7/8, 1/16, ...
+ */
+int					/* error */
+xfs_rtpick_extent(
+	struct xfs_mount	*mp,	/* file system mount point */
+	struct xfs_trans	*tp,	/* transaction pointer */
+	xfs_extlen_t		len,	/* allocation length (rtextents) */
+	xfs_rtblock_t		*pick);	/* result rt extent */
+
+/*
+ * Debug code: print out the value of a range in the bitmap.
+ */
+void
+xfs_rtprint_range(
+	struct xfs_mount	*mp,	/* file system mount structure */
+	struct xfs_trans	*tp,	/* transaction pointer */
+	xfs_rtblock_t		start,	/* starting block to print */
+	xfs_extlen_t		len);	/* length to print */
+
+/*
+ * Debug code: print the summary file.
+ */
+void
+xfs_rtprint_summary(
+	struct xfs_mount	*mp,	/* file system mount structure */
+	struct xfs_trans	*tp);	/* transaction pointer */
+
+/*
+ * Grow the realtime area of the filesystem.
+ */
+int
+xfs_growfs_rt(
+	struct xfs_mount	*mp,	/* file system mount structure */
+	xfs_growfs_rt_t		*in);	/* user supplied growfs struct */
+
+#else
+# define xfs_rtallocate_extent(t,b,min,max,l,a,f,p,rb)  (ENOSYS)
+# define xfs_rtfree_extent(t,b,l)                       (ENOSYS)
+# define xfs_rtpick_extent(m,t,l,rb)                    (ENOSYS)
+# define xfs_growfs_rt(mp,in)                           (ENOSYS)
+# define xfs_rtmount_init(m)    (((mp)->m_sb.sb_rblocks == 0)? 0 : (ENOSYS))
+# define xfs_rtmount_inodes(m)  (((mp)->m_sb.sb_rblocks == 0)? 0 : (ENOSYS))
+#endif	/* CONFIG_XFS_RT */
+
+#endif	/* __KERNEL__ */
+
+#endif	/* __XFS_RTALLOC_H__ */
diff --git a/fs/xfs/xfs_rw.c b/fs/xfs/xfs_rw.c
new file mode 100644
index 00000000000000..d3ff7aef33ba1f
--- /dev/null
+++ b/fs/xfs/xfs_rw.c
@@ -0,0 +1,356 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_itable.h"
+#include "xfs_btree.h"
+#include "xfs_alloc.h"
+#include "xfs_ialloc.h"
+#include "xfs_attr.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode_item.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_acl.h"
+#include "xfs_mac.h"
+#include "xfs_error.h"
+#include "xfs_buf_item.h"
+#include "xfs_rw.h"
+
+/*
+ * This is a subroutine for xfs_write() and other writers (xfs_ioctl)
+ * which clears the setuid and setgid bits when a file is written.
+ */
+int
+xfs_write_clear_setuid(
+	xfs_inode_t	*ip)
+{
+	xfs_mount_t	*mp;
+	xfs_trans_t	*tp;
+	int		error;
+
+	mp = ip->i_mount;
+	tp = xfs_trans_alloc(mp, XFS_TRANS_WRITEID);
+	if ((error = xfs_trans_reserve(tp, 0,
+				      XFS_WRITEID_LOG_RES(mp),
+				      0, 0, 0))) {
+		xfs_trans_cancel(tp, 0);
+		return error;
+	}
+	xfs_ilock(ip, XFS_ILOCK_EXCL);
+	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+	xfs_trans_ihold(tp, ip);
+	ip->i_d.di_mode &= ~S_ISUID;
+
+	/*
+	 * Note that we don't have to worry about mandatory
+	 * file locking being disabled here because we only
+	 * clear the S_ISGID bit if the Group execute bit is
+	 * on, but if it was on then mandatory locking wouldn't
+	 * have been enabled.
+	 */
+	if (ip->i_d.di_mode & S_IXGRP) {
+		ip->i_d.di_mode &= ~S_ISGID;
+	}
+	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+	xfs_trans_set_sync(tp);
+	error = xfs_trans_commit(tp, 0, NULL);
+	xfs_iunlock(ip, XFS_ILOCK_EXCL);
+	return 0;
+}
+
+/*
+ * Force a shutdown of the filesystem instantly while keeping
+ * the filesystem consistent. We don't do an unmount here; just shutdown
+ * the shop, make sure that absolutely nothing persistent happens to
+ * this filesystem after this point.
+ */
+
+void
+xfs_do_force_shutdown(
+	bhv_desc_t	*bdp,
+	int		flags,
+	char		*fname,
+	int		lnnum)
+{
+	int		logerror;
+	xfs_mount_t	*mp;
+
+	mp = XFS_BHVTOM(bdp);
+	logerror = flags & XFS_LOG_IO_ERROR;
+
+	if (!(flags & XFS_FORCE_UMOUNT)) {
+		cmn_err(CE_NOTE,
+		"xfs_force_shutdown(%s,0x%x) called from line %d of file %s.  Return address = 0x%p",
+			mp->m_fsname,flags,lnnum,fname,__return_address);
+	}
+	/*
+	 * No need to duplicate efforts.
+	 */
+	if (XFS_FORCED_SHUTDOWN(mp) && !logerror)
+		return;
+
+	/*
+	 * This flags XFS_MOUNT_FS_SHUTDOWN, makes sure that we don't
+	 * queue up anybody new on the log reservations, and wakes up
+	 * everybody who's sleeping on log reservations and tells
+	 * them the bad news.
+	 */
+	if (xfs_log_force_umount(mp, logerror))
+		return;
+
+	if (flags & XFS_CORRUPT_INCORE) {
+		xfs_cmn_err(XFS_PTAG_SHUTDOWN_CORRUPT, CE_ALERT, mp,
+    "Corruption of in-memory data detected.  Shutting down filesystem: %s",
+			mp->m_fsname);
+		if (XFS_ERRLEVEL_HIGH <= xfs_error_level) {
+			xfs_stack_trace();
+		}
+	} else if (!(flags & XFS_FORCE_UMOUNT)) {
+		if (logerror) {
+			xfs_cmn_err(XFS_PTAG_SHUTDOWN_LOGERROR, CE_ALERT, mp,
+			"Log I/O Error Detected.  Shutting down filesystem: %s",
+				mp->m_fsname);
+		} else if (!(flags & XFS_SHUTDOWN_REMOTE_REQ)) {
+			xfs_cmn_err(XFS_PTAG_SHUTDOWN_IOERROR, CE_ALERT, mp,
+				"I/O Error Detected.  Shutting down filesystem: %s",
+				mp->m_fsname);
+		}
+	}
+	if (!(flags & XFS_FORCE_UMOUNT)) {
+		cmn_err(CE_ALERT,
+		"Please umount the filesystem, and rectify the problem(s)");
+	}
+}
+
+
+/*
+ * Called when we want to stop a buffer from getting written or read.
+ * We attach the EIO error, muck with its flags, and call biodone
+ * so that the proper iodone callbacks get called.
+ */
+int
+xfs_bioerror(
+	xfs_buf_t *bp)
+{
+
+#ifdef XFSERRORDEBUG
+	ASSERT(XFS_BUF_ISREAD(bp) || bp->b_iodone);
+#endif
+
+	/*
+	 * No need to wait until the buffer is unpinned.
+	 * We aren't flushing it.
+	 */
+	xfs_buftrace("XFS IOERROR", bp);
+	XFS_BUF_ERROR(bp, EIO);
+	/*
+	 * We're calling biodone, so delete B_DONE flag. Either way
+	 * we have to call the iodone callback, and calling biodone
+	 * probably is the best way since it takes care of
+	 * GRIO as well.
+	 */
+	XFS_BUF_UNREAD(bp);
+	XFS_BUF_UNDELAYWRITE(bp);
+	XFS_BUF_UNDONE(bp);
+	XFS_BUF_STALE(bp);
+
+	XFS_BUF_CLR_BDSTRAT_FUNC(bp);
+	xfs_biodone(bp);
+
+	return (EIO);
+}
+
+/*
+ * Same as xfs_bioerror, except that we are releasing the buffer
+ * here ourselves, and avoiding the biodone call.
+ * This is meant for userdata errors; metadata bufs come with
+ * iodone functions attached, so that we can track down errors.
+ */
+int
+xfs_bioerror_relse(
+	xfs_buf_t *bp)
+{
+	int64_t fl;
+
+	ASSERT(XFS_BUF_IODONE_FUNC(bp) != xfs_buf_iodone_callbacks);
+	ASSERT(XFS_BUF_IODONE_FUNC(bp) != xlog_iodone);
+
+	xfs_buftrace("XFS IOERRELSE", bp);
+	fl = XFS_BUF_BFLAGS(bp);
+	/*
+	 * No need to wait until the buffer is unpinned.
+	 * We aren't flushing it.
+	 *
+	 * chunkhold expects B_DONE to be set, whether
+	 * we actually finish the I/O or not. We don't want to
+	 * change that interface.
+	 */
+	XFS_BUF_UNREAD(bp);
+	XFS_BUF_UNDELAYWRITE(bp);
+	XFS_BUF_DONE(bp);
+	XFS_BUF_STALE(bp);
+	XFS_BUF_CLR_IODONE_FUNC(bp);
+	XFS_BUF_CLR_BDSTRAT_FUNC(bp);
+	if (!(fl & XFS_B_ASYNC)) {
+		/*
+		 * Mark b_error and B_ERROR _both_.
+		 * Lot's of chunkcache code assumes that.
+		 * There's no reason to mark error for
+		 * ASYNC buffers.
+		 */
+		XFS_BUF_ERROR(bp, EIO);
+		XFS_BUF_V_IODONESEMA(bp);
+	} else {
+		xfs_buf_relse(bp);
+	}
+	return (EIO);
+}
+/*
+ * Prints out an ALERT message about I/O error.
+ */
+void
+xfs_ioerror_alert(
+	char			*func,
+	struct xfs_mount	*mp,
+	xfs_buf_t		*bp,
+	xfs_daddr_t		blkno)
+{
+	cmn_err(CE_ALERT,
+ "I/O error in filesystem (\"%s\") meta-data dev %s block 0x%llx"
+ "       (\"%s\") error %d buf count %u",
+		(!mp || !mp->m_fsname) ? "(fs name not set)" : mp->m_fsname,
+		XFS_BUFTARG_NAME(bp->pb_target),
+		(__uint64_t)blkno,
+		func,
+		XFS_BUF_GETERROR(bp),
+		XFS_BUF_COUNT(bp));
+}
+
+/*
+ * This isn't an absolute requirement, but it is
+ * just a good idea to call xfs_read_buf instead of
+ * directly doing a read_buf call. For one, we shouldn't
+ * be doing this disk read if we are in SHUTDOWN state anyway,
+ * so this stops that from happening. Secondly, this does all
+ * the error checking stuff and the brelse if appropriate for
+ * the caller, so the code can be a little leaner.
+ */
+
+int
+xfs_read_buf(
+	struct xfs_mount *mp,
+	xfs_buftarg_t	 *target,
+	xfs_daddr_t	 blkno,
+	int              len,
+	uint             flags,
+	xfs_buf_t	 **bpp)
+{
+	xfs_buf_t	 *bp;
+	int		 error;
+
+	if (flags)
+		bp = xfs_buf_read_flags(target, blkno, len, flags);
+	else
+		bp = xfs_buf_read(target, blkno, len, flags);
+	if (!bp)
+		return XFS_ERROR(EIO);
+	error = XFS_BUF_GETERROR(bp);
+	if (bp && !error && !XFS_FORCED_SHUTDOWN(mp)) {
+		*bpp = bp;
+	} else {
+		*bpp = NULL;
+		if (error) {
+			xfs_ioerror_alert("xfs_read_buf", mp, bp, XFS_BUF_ADDR(bp));
+		} else {
+			error = XFS_ERROR(EIO);
+		}
+		if (bp) {
+			XFS_BUF_UNDONE(bp);
+			XFS_BUF_UNDELAYWRITE(bp);
+			XFS_BUF_STALE(bp);
+			/*
+			 * brelse clears B_ERROR and b_error
+			 */
+			xfs_buf_relse(bp);
+		}
+	}
+	return (error);
+}
+
+/*
+ * Wrapper around bwrite() so that we can trap
+ * write errors, and act accordingly.
+ */
+int
+xfs_bwrite(
+	struct xfs_mount *mp,
+	struct xfs_buf	 *bp)
+{
+	int	error;
+
+	/*
+	 * XXXsup how does this work for quotas.
+	 */
+	XFS_BUF_SET_BDSTRAT_FUNC(bp, xfs_bdstrat_cb);
+	XFS_BUF_SET_FSPRIVATE3(bp, mp);
+	XFS_BUF_WRITE(bp);
+
+	if ((error = XFS_bwrite(bp))) {
+		ASSERT(mp);
+		/*
+		 * Cannot put a buftrace here since if the buffer is not
+		 * B_HOLD then we will brelse() the buffer before returning
+		 * from bwrite and we could be tracing a buffer that has
+		 * been reused.
+		 */
+		xfs_force_shutdown(mp, XFS_METADATA_IO_ERROR);
+	}
+	return (error);
+}
diff --git a/fs/xfs/xfs_rw.h b/fs/xfs/xfs_rw.h
new file mode 100644
index 00000000000000..c8b10bf8f5307a
--- /dev/null
+++ b/fs/xfs/xfs_rw.h
@@ -0,0 +1,154 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef	__XFS_RW_H__
+#define	__XFS_RW_H__
+
+struct xfs_buf;
+struct xfs_inode;
+struct xfs_mount;
+
+/*
+ * Maximum count of bmaps used by read and write paths.
+ */
+#define	XFS_MAX_RW_NBMAPS	4
+
+/*
+ * Counts of readahead buffers to use based on physical memory size.
+ * None of these should be more than XFS_MAX_RW_NBMAPS.
+ */
+#define	XFS_RW_NREADAHEAD_16MB	2
+#define	XFS_RW_NREADAHEAD_32MB	3
+#define	XFS_RW_NREADAHEAD_K32	4
+#define	XFS_RW_NREADAHEAD_K64	4
+
+/*
+ * Maximum size of a buffer that we\'ll map.  Making this
+ * too big will degrade performance due to the number of
+ * pages which need to be gathered.  Making it too small
+ * will prevent us from doing large I/O\'s to hardware that
+ * needs it.
+ *
+ * This is currently set to 512 KB.
+ */
+#define	XFS_MAX_BMAP_LEN_BB	1024
+#define	XFS_MAX_BMAP_LEN_BYTES	524288
+
+/*
+ * Convert the given file system block to a disk block.
+ * We have to treat it differently based on whether the
+ * file is a real time file or not, because the bmap code
+ * does.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_FSB_TO_DB)
+xfs_daddr_t xfs_fsb_to_db(struct xfs_inode *ip, xfs_fsblock_t fsb);
+#define	XFS_FSB_TO_DB(ip,fsb)	xfs_fsb_to_db(ip,fsb)
+#else
+#define	XFS_FSB_TO_DB(ip,fsb) \
+		(((ip)->i_d.di_flags & XFS_DIFLAG_REALTIME) ? \
+		 (xfs_daddr_t)XFS_FSB_TO_BB((ip)->i_mount, (fsb)) : \
+		 XFS_FSB_TO_DADDR((ip)->i_mount, (fsb)))
+#endif
+
+#define XFS_FSB_TO_DB_IO(io,fsb) \
+		(((io)->io_flags & XFS_IOCORE_RT) ? \
+		 XFS_FSB_TO_BB((io)->io_mount, (fsb)) : \
+		 XFS_FSB_TO_DADDR((io)->io_mount, (fsb)))
+
+/*
+ * Prototypes for functions in xfs_rw.c.
+ */
+
+int
+xfs_write_clear_setuid(
+	struct xfs_inode	*ip);
+
+int
+xfs_bwrite(
+	struct xfs_mount	*mp,
+	struct xfs_buf		*bp);
+
+int
+xfs_bioerror(
+	struct xfs_buf		*b);
+
+int
+xfs_bioerror_relse(
+	struct xfs_buf		*b);
+
+int
+xfs_read_buf(
+	struct xfs_mount	*mp,
+	xfs_buftarg_t		*target,
+	xfs_daddr_t		blkno,
+	int			len,
+	uint			flags,
+	struct xfs_buf		**bpp);
+
+void
+xfs_ioerror_alert(
+	char			*func,
+	struct xfs_mount	*mp,
+	xfs_buf_t		*bp,
+	xfs_daddr_t		blkno);
+
+
+/*
+ * Prototypes for functions in xfs_vnodeops.c.
+ */
+
+int
+xfs_rwlock(
+	bhv_desc_t		*bdp,
+	vrwlock_t		write_lock);
+
+void
+xfs_rwunlock(
+	bhv_desc_t		*bdp,
+	vrwlock_t		write_lock);
+
+int
+xfs_change_file_space(
+	bhv_desc_t		*bdp,
+	int			cmd,
+	xfs_flock64_t		*bf,
+	xfs_off_t		offset,
+	cred_t			*credp,
+	int			flags);
+
+int
+xfs_set_dmattrs(
+	bhv_desc_t		*bdp,
+	u_int			evmask,
+	u_int16_t		state,
+	cred_t			*credp);
+
+#endif /* __XFS_RW_H__ */
diff --git a/fs/xfs/xfs_sb.h b/fs/xfs/xfs_sb.h
new file mode 100644
index 00000000000000..ad090a834ced69
--- /dev/null
+++ b/fs/xfs/xfs_sb.h
@@ -0,0 +1,583 @@
+/*
+ * Copyright (c) 2000-2001 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_SB_H__
+#define	__XFS_SB_H__
+
+/*
+ * Super block
+ * Fits into a sector-sized buffer at address 0 of each allocation group.
+ * Only the first of these is ever updated except during growfs.
+ */
+
+struct xfs_buf;
+struct xfs_mount;
+
+#define	XFS_SB_MAGIC		0x58465342	/* 'XFSB' */
+#define	XFS_SB_VERSION_1	1		/* 5.3, 6.0.1, 6.1 */
+#define	XFS_SB_VERSION_2	2		/* 6.2 - attributes */
+#define	XFS_SB_VERSION_3	3		/* 6.2 - new inode version */
+#define	XFS_SB_VERSION_4	4		/* 6.2+ - bitmask version */
+#define	XFS_SB_VERSION_NUMBITS		0x000f
+#define	XFS_SB_VERSION_ALLFBITS		0xfff0
+#define	XFS_SB_VERSION_SASHFBITS	0xf000
+#define	XFS_SB_VERSION_REALFBITS	0x0ff0
+#define	XFS_SB_VERSION_ATTRBIT		0x0010
+#define	XFS_SB_VERSION_NLINKBIT		0x0020
+#define	XFS_SB_VERSION_QUOTABIT		0x0040
+#define	XFS_SB_VERSION_ALIGNBIT		0x0080
+#define	XFS_SB_VERSION_DALIGNBIT	0x0100
+#define	XFS_SB_VERSION_SHAREDBIT	0x0200
+#define XFS_SB_VERSION_LOGV2BIT		0x0400
+#define XFS_SB_VERSION_SECTORBIT	0x0800
+#define	XFS_SB_VERSION_EXTFLGBIT	0x1000
+#define	XFS_SB_VERSION_DIRV2BIT		0x2000
+#define	XFS_SB_VERSION_MOREBITSBIT	0x8000
+#define	XFS_SB_VERSION_OKSASHFBITS	\
+	(XFS_SB_VERSION_EXTFLGBIT | \
+	 XFS_SB_VERSION_DIRV2BIT)
+#define	XFS_SB_VERSION_OKREALFBITS	\
+	(XFS_SB_VERSION_ATTRBIT | \
+	 XFS_SB_VERSION_NLINKBIT | \
+	 XFS_SB_VERSION_QUOTABIT | \
+	 XFS_SB_VERSION_ALIGNBIT | \
+	 XFS_SB_VERSION_DALIGNBIT | \
+	 XFS_SB_VERSION_SHAREDBIT | \
+	 XFS_SB_VERSION_LOGV2BIT | \
+	 XFS_SB_VERSION_SECTORBIT)
+#define	XFS_SB_VERSION_OKSASHBITS	\
+	(XFS_SB_VERSION_NUMBITS | \
+	 XFS_SB_VERSION_REALFBITS | \
+	 XFS_SB_VERSION_OKSASHFBITS)
+#define	XFS_SB_VERSION_OKREALBITS	\
+	(XFS_SB_VERSION_NUMBITS | \
+	 XFS_SB_VERSION_OKREALFBITS | \
+	 XFS_SB_VERSION_OKSASHFBITS)
+#define XFS_SB_VERSION_MKFS(ia,dia,extflag,dirv2,na,sflag,morebits)	\
+	(((ia) || (dia) || (extflag) || (dirv2) || (na) || (sflag) || \
+	  (morebits)) ? \
+		(XFS_SB_VERSION_4 | \
+		 ((ia) ? XFS_SB_VERSION_ALIGNBIT : 0) | \
+		 ((dia) ? XFS_SB_VERSION_DALIGNBIT : 0) | \
+		 ((extflag) ? XFS_SB_VERSION_EXTFLGBIT : 0) | \
+		 ((dirv2) ? XFS_SB_VERSION_DIRV2BIT : 0) | \
+		 ((na) ? XFS_SB_VERSION_LOGV2BIT : 0) | \
+		 ((sflag) ? XFS_SB_VERSION_SECTORBIT : 0) | \
+		 ((morebits) ? XFS_SB_VERSION_MOREBITSBIT : 0)) : \
+		XFS_SB_VERSION_1)
+
+/*
+ * There are two words to hold XFS "feature" bits: the original
+ * word, sb_versionnum, and sb_features2.  Whenever a bit is set in
+ * sb_features2, the feature bit XFS_SB_VERSION_MOREBITSBIT must be set.
+ *
+ * These defines represent bits in sb_features2.
+ */
+#define XFS_SB_VERSION2_REALFBITS	0x00ffffff	/* Mask: features */
+#define XFS_SB_VERSION2_RESERVED1BIT	0x00000001
+#define XFS_SB_VERSION2_SASHFBITS	0xff000000	/* Mask: features that
+							   require changing
+							   PROM and SASH */
+
+#define	XFS_SB_VERSION2_OKREALFBITS	\
+	(0)
+#define	XFS_SB_VERSION2_OKSASHFBITS	\
+	(0)
+#define XFS_SB_VERSION2_OKREALBITS	\
+	(XFS_SB_VERSION2_OKREALFBITS |	\
+	 XFS_SB_VERSION2_OKSASHFBITS )
+
+/*
+ * mkfs macro to set up sb_features2 word
+ */
+#define	XFS_SB_VERSION2_MKFS(xyz)	\
+	((xyz) ? 0 : 0)
+
+typedef struct xfs_sb
+{
+	__uint32_t	sb_magicnum;	/* magic number == XFS_SB_MAGIC */
+	__uint32_t	sb_blocksize;	/* logical block size, bytes */
+	xfs_drfsbno_t	sb_dblocks;	/* number of data blocks */
+	xfs_drfsbno_t	sb_rblocks;	/* number of realtime blocks */
+	xfs_drtbno_t	sb_rextents;	/* number of realtime extents */
+	uuid_t		sb_uuid;	/* file system unique id */
+	xfs_dfsbno_t	sb_logstart;	/* starting block of log if internal */
+	xfs_ino_t	sb_rootino;	/* root inode number */
+	xfs_ino_t	sb_rbmino;	/* bitmap inode for realtime extents */
+	xfs_ino_t	sb_rsumino;	/* summary inode for rt bitmap */
+	xfs_agblock_t	sb_rextsize;	/* realtime extent size, blocks */
+	xfs_agblock_t	sb_agblocks;	/* size of an allocation group */
+	xfs_agnumber_t	sb_agcount;	/* number of allocation groups */
+	xfs_extlen_t	sb_rbmblocks;	/* number of rt bitmap blocks */
+	xfs_extlen_t	sb_logblocks;	/* number of log blocks */
+	__uint16_t	sb_versionnum;	/* header version == XFS_SB_VERSION */
+	__uint16_t	sb_sectsize;	/* volume sector size, bytes */
+	__uint16_t	sb_inodesize;	/* inode size, bytes */
+	__uint16_t	sb_inopblock;	/* inodes per block */
+	char		sb_fname[12];	/* file system name */
+	__uint8_t	sb_blocklog;	/* log2 of sb_blocksize */
+	__uint8_t	sb_sectlog;	/* log2 of sb_sectsize */
+	__uint8_t	sb_inodelog;	/* log2 of sb_inodesize */
+	__uint8_t	sb_inopblog;	/* log2 of sb_inopblock */
+	__uint8_t	sb_agblklog;	/* log2 of sb_agblocks (rounded up) */
+	__uint8_t	sb_rextslog;	/* log2 of sb_rextents */
+	__uint8_t	sb_inprogress;	/* mkfs is in progress, don't mount */
+	__uint8_t	sb_imax_pct;	/* max % of fs for inode space */
+					/* statistics */
+	/*
+	 * These fields must remain contiguous.  If you really
+	 * want to change their layout, make sure you fix the
+	 * code in xfs_trans_apply_sb_deltas().
+	 */
+	__uint64_t	sb_icount;	/* allocated inodes */
+	__uint64_t	sb_ifree;	/* free inodes */
+	__uint64_t	sb_fdblocks;	/* free data blocks */
+	__uint64_t	sb_frextents;	/* free realtime extents */
+	/*
+	 * End contiguous fields.
+	 */
+	xfs_ino_t	sb_uquotino;	/* user quota inode */
+	xfs_ino_t	sb_gquotino;	/* group quota inode */
+	__uint16_t	sb_qflags;	/* quota flags */
+	__uint8_t	sb_flags;	/* misc. flags */
+	__uint8_t	sb_shared_vn;	/* shared version number */
+	xfs_extlen_t	sb_inoalignmt;	/* inode chunk alignment, fsblocks */
+	__uint32_t	sb_unit;	/* stripe or raid unit */
+	__uint32_t	sb_width;	/* stripe or raid width */
+	__uint8_t	sb_dirblklog;	/* log2 of dir block size (fsbs) */
+	__uint8_t	sb_logsectlog;	/* log2 of the log sector size */
+	__uint16_t	sb_logsectsize;	/* sector size for the log, bytes */
+	__uint32_t	sb_logsunit;	/* stripe unit size for the log */
+	__uint32_t	sb_features2;	/* additonal feature bits */
+} xfs_sb_t;
+
+/*
+ * Sequence number values for the fields.
+ */
+typedef enum {
+	XFS_SBS_MAGICNUM, XFS_SBS_BLOCKSIZE, XFS_SBS_DBLOCKS, XFS_SBS_RBLOCKS,
+	XFS_SBS_REXTENTS, XFS_SBS_UUID, XFS_SBS_LOGSTART, XFS_SBS_ROOTINO,
+	XFS_SBS_RBMINO, XFS_SBS_RSUMINO, XFS_SBS_REXTSIZE, XFS_SBS_AGBLOCKS,
+	XFS_SBS_AGCOUNT, XFS_SBS_RBMBLOCKS, XFS_SBS_LOGBLOCKS,
+	XFS_SBS_VERSIONNUM, XFS_SBS_SECTSIZE, XFS_SBS_INODESIZE,
+	XFS_SBS_INOPBLOCK, XFS_SBS_FNAME, XFS_SBS_BLOCKLOG,
+	XFS_SBS_SECTLOG, XFS_SBS_INODELOG, XFS_SBS_INOPBLOG, XFS_SBS_AGBLKLOG,
+	XFS_SBS_REXTSLOG, XFS_SBS_INPROGRESS, XFS_SBS_IMAX_PCT, XFS_SBS_ICOUNT,
+	XFS_SBS_IFREE, XFS_SBS_FDBLOCKS, XFS_SBS_FREXTENTS, XFS_SBS_UQUOTINO,
+	XFS_SBS_GQUOTINO, XFS_SBS_QFLAGS, XFS_SBS_FLAGS, XFS_SBS_SHARED_VN,
+	XFS_SBS_INOALIGNMT, XFS_SBS_UNIT, XFS_SBS_WIDTH, XFS_SBS_DIRBLKLOG,
+	XFS_SBS_LOGSECTLOG, XFS_SBS_LOGSECTSIZE, XFS_SBS_LOGSUNIT,
+	XFS_SBS_FEATURES2,
+	XFS_SBS_FIELDCOUNT
+} xfs_sb_field_t;
+
+/*
+ * Mask values, defined based on the xfs_sb_field_t values.
+ * Only define the ones we're using.
+ */
+#define	XFS_SB_MVAL(x)		(1LL << XFS_SBS_ ## x)
+#define	XFS_SB_UUID		XFS_SB_MVAL(UUID)
+#define	XFS_SB_FNAME		XFS_SB_MVAL(FNAME)
+#define	XFS_SB_ROOTINO		XFS_SB_MVAL(ROOTINO)
+#define	XFS_SB_RBMINO		XFS_SB_MVAL(RBMINO)
+#define	XFS_SB_RSUMINO		XFS_SB_MVAL(RSUMINO)
+#define	XFS_SB_VERSIONNUM	XFS_SB_MVAL(VERSIONNUM)
+#define XFS_SB_UQUOTINO		XFS_SB_MVAL(UQUOTINO)
+#define XFS_SB_GQUOTINO		XFS_SB_MVAL(GQUOTINO)
+#define XFS_SB_QFLAGS		XFS_SB_MVAL(QFLAGS)
+#define XFS_SB_SHARED_VN	XFS_SB_MVAL(SHARED_VN)
+#define XFS_SB_UNIT		XFS_SB_MVAL(UNIT)
+#define XFS_SB_WIDTH		XFS_SB_MVAL(WIDTH)
+#define	XFS_SB_NUM_BITS		((int)XFS_SBS_FIELDCOUNT)
+#define	XFS_SB_ALL_BITS		((1LL << XFS_SB_NUM_BITS) - 1)
+#define	XFS_SB_MOD_BITS		\
+	(XFS_SB_UUID | XFS_SB_ROOTINO | XFS_SB_RBMINO | XFS_SB_RSUMINO | \
+	 XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | XFS_SB_GQUOTINO | \
+	 XFS_SB_QFLAGS | XFS_SB_SHARED_VN | XFS_SB_UNIT | XFS_SB_WIDTH)
+
+/*
+ * Misc. Flags - warning - these will be cleared by xfs_repair unless
+ * a feature bit is set when the flag is used.
+ */
+#define XFS_SBF_NOFLAGS		0x00	/* no flags set */
+#define XFS_SBF_READONLY	0x01	/* only read-only mounts allowed */
+
+/*
+ * define max. shared version we can interoperate with
+ */
+#define XFS_SB_MAX_SHARED_VN	0
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_NUM)
+int xfs_sb_version_num(xfs_sb_t *sbp);
+#define	XFS_SB_VERSION_NUM(sbp)	xfs_sb_version_num(sbp)
+#else
+#define	XFS_SB_VERSION_NUM(sbp)	((sbp)->sb_versionnum & XFS_SB_VERSION_NUMBITS)
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_GOOD_VERSION)
+int xfs_sb_good_version(xfs_sb_t *sbp);
+#define	XFS_SB_GOOD_VERSION(sbp)	xfs_sb_good_version(sbp)
+#else
+#define	XFS_SB_GOOD_VERSION_INT(sbp)	\
+	((((sbp)->sb_versionnum >= XFS_SB_VERSION_1) && \
+	  ((sbp)->sb_versionnum <= XFS_SB_VERSION_3)) || \
+	   ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
+	    !(((sbp)->sb_versionnum & ~XFS_SB_VERSION_OKREALBITS) || \
+	      (((sbp)->sb_versionnum & XFS_SB_VERSION_MOREBITSBIT) && \
+	       ((sbp)->sb_features2 & ~XFS_SB_VERSION2_OKREALBITS)))
+
+#ifdef __KERNEL__
+#define	XFS_SB_GOOD_VERSION(sbp)	\
+	(XFS_SB_GOOD_VERSION_INT(sbp) && \
+	  (sbp)->sb_shared_vn <= XFS_SB_MAX_SHARED_VN) ))
+#else
+/*
+ * extra 2 paren's here (( to unconfuse paren-matching editors
+ * like vi because XFS_SB_GOOD_VERSION_INT is a partial expression
+ * and the two XFS_SB_GOOD_VERSION's each 2 more close paren's to
+ * complete the expression.
+ */
+#define XFS_SB_GOOD_VERSION(sbp)	\
+	(XFS_SB_GOOD_VERSION_INT(sbp) && \
+	  (!((sbp)->sb_versionnum & XFS_SB_VERSION_SHAREDBIT) || \
+	   (sbp)->sb_shared_vn <= XFS_SB_MAX_SHARED_VN)) ))
+#endif /* __KERNEL__ */
+#endif
+
+#define	XFS_SB_GOOD_SASH_VERSION(sbp)	\
+	((((sbp)->sb_versionnum >= XFS_SB_VERSION_1) && \
+	  ((sbp)->sb_versionnum <= XFS_SB_VERSION_3)) || \
+	 ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
+	  !((sbp)->sb_versionnum & ~XFS_SB_VERSION_OKSASHBITS)))
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_TONEW)
+unsigned xfs_sb_version_tonew(unsigned v);
+#define	XFS_SB_VERSION_TONEW(v)	xfs_sb_version_tonew(v)
+#else
+#define	XFS_SB_VERSION_TONEW(v)	\
+	((((v) == XFS_SB_VERSION_1) ? \
+		0 : \
+		(((v) == XFS_SB_VERSION_2) ? \
+			XFS_SB_VERSION_ATTRBIT : \
+			(XFS_SB_VERSION_ATTRBIT | XFS_SB_VERSION_NLINKBIT))) | \
+	 XFS_SB_VERSION_4)
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_TOOLD)
+unsigned xfs_sb_version_toold(unsigned v);
+#define	XFS_SB_VERSION_TOOLD(v)	xfs_sb_version_toold(v)
+#else
+#define	XFS_SB_VERSION_TOOLD(v)	\
+	(((v) & (XFS_SB_VERSION_QUOTABIT | XFS_SB_VERSION_ALIGNBIT)) ? \
+		0 : \
+		(((v) & XFS_SB_VERSION_NLINKBIT) ? \
+			XFS_SB_VERSION_3 : \
+			(((v) & XFS_SB_VERSION_ATTRBIT) ?  \
+				XFS_SB_VERSION_2 : \
+				XFS_SB_VERSION_1)))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASATTR)
+int xfs_sb_version_hasattr(xfs_sb_t *sbp);
+#define	XFS_SB_VERSION_HASATTR(sbp)	xfs_sb_version_hasattr(sbp)
+#else
+#define	XFS_SB_VERSION_HASATTR(sbp)	\
+	(((sbp)->sb_versionnum == XFS_SB_VERSION_2) || \
+	 ((sbp)->sb_versionnum == XFS_SB_VERSION_3) || \
+	 ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
+	  ((sbp)->sb_versionnum & XFS_SB_VERSION_ATTRBIT)))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDATTR)
+void xfs_sb_version_addattr(xfs_sb_t *sbp);
+#define	XFS_SB_VERSION_ADDATTR(sbp)	xfs_sb_version_addattr(sbp)
+#else
+#define	XFS_SB_VERSION_ADDATTR(sbp)	\
+	((sbp)->sb_versionnum = \
+	 (((sbp)->sb_versionnum == XFS_SB_VERSION_1) ? \
+		XFS_SB_VERSION_2 : \
+		((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) ? \
+			((sbp)->sb_versionnum | XFS_SB_VERSION_ATTRBIT) : \
+			(XFS_SB_VERSION_4 | XFS_SB_VERSION_ATTRBIT))))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASNLINK)
+int xfs_sb_version_hasnlink(xfs_sb_t *sbp);
+#define	XFS_SB_VERSION_HASNLINK(sbp)	xfs_sb_version_hasnlink(sbp)
+#else
+#define	XFS_SB_VERSION_HASNLINK(sbp)	\
+	(((sbp)->sb_versionnum == XFS_SB_VERSION_3) || \
+	 ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
+	  ((sbp)->sb_versionnum & XFS_SB_VERSION_NLINKBIT)))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDNLINK)
+void xfs_sb_version_addnlink(xfs_sb_t *sbp);
+#define	XFS_SB_VERSION_ADDNLINK(sbp)	xfs_sb_version_addnlink(sbp)
+#else
+#define	XFS_SB_VERSION_ADDNLINK(sbp)	\
+	((sbp)->sb_versionnum = \
+	 ((sbp)->sb_versionnum <= XFS_SB_VERSION_2 ? \
+		XFS_SB_VERSION_3 : \
+		((sbp)->sb_versionnum | XFS_SB_VERSION_NLINKBIT)))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASQUOTA)
+int xfs_sb_version_hasquota(xfs_sb_t *sbp);
+#define	XFS_SB_VERSION_HASQUOTA(sbp)	xfs_sb_version_hasquota(sbp)
+#else
+#define	XFS_SB_VERSION_HASQUOTA(sbp)	\
+	((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
+	 ((sbp)->sb_versionnum & XFS_SB_VERSION_QUOTABIT))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDQUOTA)
+void xfs_sb_version_addquota(xfs_sb_t *sbp);
+#define	XFS_SB_VERSION_ADDQUOTA(sbp)	xfs_sb_version_addquota(sbp)
+#else
+#define	XFS_SB_VERSION_ADDQUOTA(sbp)	\
+	((sbp)->sb_versionnum = \
+	 (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4 ? \
+		((sbp)->sb_versionnum | XFS_SB_VERSION_QUOTABIT) : \
+		(XFS_SB_VERSION_TONEW((sbp)->sb_versionnum) | \
+		 XFS_SB_VERSION_QUOTABIT)))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASALIGN)
+int xfs_sb_version_hasalign(xfs_sb_t *sbp);
+#define	XFS_SB_VERSION_HASALIGN(sbp)	xfs_sb_version_hasalign(sbp)
+#else
+#define	XFS_SB_VERSION_HASALIGN(sbp)	\
+	((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
+	 ((sbp)->sb_versionnum & XFS_SB_VERSION_ALIGNBIT))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_SUBALIGN)
+void xfs_sb_version_subalign(xfs_sb_t *sbp);
+#define	XFS_SB_VERSION_SUBALIGN(sbp)	xfs_sb_version_subalign(sbp)
+#else
+#define	XFS_SB_VERSION_SUBALIGN(sbp)	\
+	((sbp)->sb_versionnum = \
+	 XFS_SB_VERSION_TOOLD((sbp)->sb_versionnum & ~XFS_SB_VERSION_ALIGNBIT))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASDALIGN)
+int xfs_sb_version_hasdalign(xfs_sb_t *sbp);
+#define XFS_SB_VERSION_HASDALIGN(sbp)	xfs_sb_version_hasdalign(sbp)
+#else
+#define XFS_SB_VERSION_HASDALIGN(sbp)	\
+	((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
+	 ((sbp)->sb_versionnum & XFS_SB_VERSION_DALIGNBIT))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDDALIGN)
+int xfs_sb_version_adddalign(xfs_sb_t *sbp);
+#define XFS_SB_VERSION_ADDDALIGN(sbp)	xfs_sb_version_adddalign(sbp)
+#else
+#define XFS_SB_VERSION_ADDDALIGN(sbp)	\
+	((sbp)->sb_versionnum = \
+		((sbp)->sb_versionnum | XFS_SB_VERSION_DALIGNBIT))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASSHARED)
+int xfs_sb_version_hasshared(xfs_sb_t *sbp);
+#define XFS_SB_VERSION_HASSHARED(sbp)	xfs_sb_version_hasshared(sbp)
+#else
+#define XFS_SB_VERSION_HASSHARED(sbp)	\
+	((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
+	 ((sbp)->sb_versionnum & XFS_SB_VERSION_SHAREDBIT))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDSHARED)
+int xfs_sb_version_addshared(xfs_sb_t *sbp);
+#define XFS_SB_VERSION_ADDSHARED(sbp)	xfs_sb_version_addshared(sbp)
+#else
+#define XFS_SB_VERSION_ADDSHARED(sbp)	\
+	((sbp)->sb_versionnum = \
+		((sbp)->sb_versionnum | XFS_SB_VERSION_SHAREDBIT))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_SUBSHARED)
+int xfs_sb_version_subshared(xfs_sb_t *sbp);
+#define XFS_SB_VERSION_SUBSHARED(sbp)	xfs_sb_version_subshared(sbp)
+#else
+#define XFS_SB_VERSION_SUBSHARED(sbp)	\
+	((sbp)->sb_versionnum = \
+		((sbp)->sb_versionnum & ~XFS_SB_VERSION_SHAREDBIT))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASDIRV2)
+int xfs_sb_version_hasdirv2(xfs_sb_t *sbp);
+#define XFS_SB_VERSION_HASDIRV2(sbp)	xfs_sb_version_hasdirv2(sbp)
+#else
+#define XFS_SB_VERSION_HASDIRV2(sbp)	\
+	((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
+	 ((sbp)->sb_versionnum & XFS_SB_VERSION_DIRV2BIT))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASLOGV2)
+int xfs_sb_version_haslogv2(xfs_sb_t *sbp);
+#define XFS_SB_VERSION_HASLOGV2(sbp)   xfs_sb_version_haslogv2(sbp)
+#else
+#define XFS_SB_VERSION_HASLOGV2(sbp)   \
+	((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
+	((sbp)->sb_versionnum & XFS_SB_VERSION_LOGV2BIT))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASEXTFLGBIT)
+int xfs_sb_version_hasextflgbit(xfs_sb_t *sbp);
+#define XFS_SB_VERSION_HASEXTFLGBIT(sbp)	xfs_sb_version_hasextflgbit(sbp)
+#else
+#define XFS_SB_VERSION_HASEXTFLGBIT(sbp)	\
+	((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
+	 ((sbp)->sb_versionnum & XFS_SB_VERSION_EXTFLGBIT))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDEXTFLGBIT)
+int xfs_sb_version_addextflgbit(xfs_sb_t *sbp);
+#define XFS_SB_VERSION_ADDEXTFLGBIT(sbp)	xfs_sb_version_addextflgbit(sbp)
+#else
+#define XFS_SB_VERSION_ADDEXTFLGBIT(sbp)	\
+	((sbp)->sb_versionnum = \
+		((sbp)->sb_versionnum | XFS_SB_VERSION_EXTFLGBIT))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_SUBEXTFLGBIT)
+int xfs_sb_version_subextflgbit(xfs_sb_t *sbp);
+#define XFS_SB_VERSION_SUBEXTFLGBIT(sbp)	xfs_sb_version_subextflgbit(sbp)
+#else
+#define XFS_SB_VERSION_SUBEXTFLGBIT(sbp)	\
+	((sbp)->sb_versionnum = \
+		((sbp)->sb_versionnum & ~XFS_SB_VERSION_EXTFLGBIT))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASSECTOR)
+int xfs_sb_version_hassector(xfs_sb_t *sbp);
+#define XFS_SB_VERSION_HASSECTOR(sbp)   xfs_sb_version_hassector(sbp)
+#else
+#define XFS_SB_VERSION_HASSECTOR(sbp)   \
+	((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
+	((sbp)->sb_versionnum & XFS_SB_VERSION_SECTORBIT))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASMOREBITSBIT)
+int xfs_sb_version_hasmorebits(xfs_sb_t *sbp);
+#define XFS_SB_VERSION_HASMOREBITS(sbp)	xfs_sb_version_hasmorebits(sbp)
+#else
+#define XFS_SB_VERSION_HASMOREBITS(sbp)	\
+	((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
+	 ((sbp)->sb_versionnum & XFS_SB_VERSION_MOREBITSBIT))
+#endif
+
+/*
+ * sb_features2 bit version macros.
+ *
+ * For example, for a bit defined as XFS_SB_VERSION2_YBIT, has a macro:
+ *
+ * SB_VERSION_HASYBIT(xfs_sb_t *sbp)
+ *	((XFS_SB_VERSION_HASMOREBITS(sbp) &&
+ *	 ((sbp)->sb_versionnum & XFS_SB_VERSION2_YBIT)
+ */
+
+/*
+ * end of superblock version macros
+ */
+
+#define XFS_SB_DADDR	((xfs_daddr_t)0)	/* daddr in filesystem/ag */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_BLOCK)
+xfs_agblock_t xfs_sb_block(struct xfs_mount *mp);
+#define	XFS_SB_BLOCK(mp)	xfs_sb_block(mp)
+#else
+#define	XFS_SB_BLOCK(mp)	XFS_HDR_BLOCK(mp, XFS_SB_DADDR)
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_HDR_BLOCK)
+xfs_agblock_t xfs_hdr_block(struct xfs_mount *mp, xfs_daddr_t d);
+#define	XFS_HDR_BLOCK(mp,d)	xfs_hdr_block(mp,d)
+#else
+#define	XFS_HDR_BLOCK(mp,d)	((xfs_agblock_t)(XFS_BB_TO_FSBT(mp,d)))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DADDR_TO_FSB)
+xfs_fsblock_t xfs_daddr_to_fsb(struct xfs_mount *mp, xfs_daddr_t d);
+#define	XFS_DADDR_TO_FSB(mp,d)		xfs_daddr_to_fsb(mp,d)
+#else
+#define	XFS_DADDR_TO_FSB(mp,d) \
+	XFS_AGB_TO_FSB(mp, XFS_DADDR_TO_AGNO(mp,d), XFS_DADDR_TO_AGBNO(mp,d))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_FSB_TO_DADDR)
+xfs_daddr_t xfs_fsb_to_daddr(struct xfs_mount *mp, xfs_fsblock_t fsbno);
+#define	XFS_FSB_TO_DADDR(mp,fsbno)	xfs_fsb_to_daddr(mp,fsbno)
+#else
+#define	XFS_FSB_TO_DADDR(mp,fsbno) \
+	XFS_AGB_TO_DADDR(mp, XFS_FSB_TO_AGNO(mp,fsbno), \
+			 XFS_FSB_TO_AGBNO(mp,fsbno))
+#endif
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BUF_TO_SBP)
+xfs_sb_t *xfs_buf_to_sbp(struct xfs_buf *bp);
+#define XFS_BUF_TO_SBP(bp)	xfs_buf_to_sbp(bp)
+#else
+#define XFS_BUF_TO_SBP(bp)	((xfs_sb_t *)XFS_BUF_PTR(bp))
+#endif
+
+/*
+ * File system sector to basic block conversions.
+ */
+#define XFS_FSS_TO_BB(mp,sec)	((sec) << (mp)->m_sectbb_log)
+#define XFS_BB_TO_FSS(mp,bb)	\
+	(((bb) + (XFS_FSS_TO_BB(mp,1) - 1)) >> (mp)->m_sectbb_log)
+#define XFS_BB_TO_FSST(mp,bb)	((bb) >> (mp)->m_sectbb_log)
+
+/*
+ * File system sector to byte conversions.
+ */
+#define XFS_FSS_TO_B(mp,sectno)	((xfs_fsize_t)(sectno) << (mp)->m_sb.sb_sectlog)
+#define XFS_B_TO_FSST(mp,b)	(((__uint64_t)(b)) >> (mp)->m_sb.sb_sectlog)
+
+/*
+ * File system block to basic block conversions.
+ */
+#define	XFS_FSB_TO_BB(mp,fsbno)	((fsbno) << (mp)->m_blkbb_log)
+#define	XFS_BB_TO_FSB(mp,bb)	\
+	(((bb) + (XFS_FSB_TO_BB(mp,1) - 1)) >> (mp)->m_blkbb_log)
+#define	XFS_BB_TO_FSBT(mp,bb)	((bb) >> (mp)->m_blkbb_log)
+#define	XFS_BB_FSB_OFFSET(mp,bb) ((bb) & ((mp)->m_bsize - 1))
+
+/*
+ * File system block to byte conversions.
+ */
+#define XFS_FSB_TO_B(mp,fsbno)	((xfs_fsize_t)(fsbno) << (mp)->m_sb.sb_blocklog)
+#define XFS_B_TO_FSB(mp,b)	\
+	((((__uint64_t)(b)) + (mp)->m_blockmask) >> (mp)->m_sb.sb_blocklog)
+#define XFS_B_TO_FSBT(mp,b)	(((__uint64_t)(b)) >> (mp)->m_sb.sb_blocklog)
+#define XFS_B_FSB_OFFSET(mp,b)	((b) & (mp)->m_blockmask)
+
+#endif	/* __XFS_SB_H__ */
diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c
new file mode 100644
index 00000000000000..3db0e22007759c
--- /dev/null
+++ b/fs/xfs/xfs_trans.c
@@ -0,0 +1,1315 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_error.h"
+#include "xfs_trans_priv.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_alloc.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_da_btree.h"
+#include "xfs_quota.h"
+#include "xfs_trans_space.h"
+
+
+STATIC void	xfs_trans_apply_sb_deltas(xfs_trans_t *);
+STATIC uint	xfs_trans_count_vecs(xfs_trans_t *);
+STATIC void	xfs_trans_fill_vecs(xfs_trans_t *, xfs_log_iovec_t *);
+STATIC void	xfs_trans_uncommit(xfs_trans_t *, uint);
+STATIC void	xfs_trans_committed(xfs_trans_t *, int);
+STATIC void	xfs_trans_chunk_committed(xfs_log_item_chunk_t *, xfs_lsn_t, int);
+STATIC void	xfs_trans_free(xfs_trans_t *);
+
+kmem_zone_t		*xfs_trans_zone;
+
+
+/*
+ * Initialize the precomputed transaction reservation values
+ * in the mount structure.
+ */
+void
+xfs_trans_init(
+	xfs_mount_t	*mp)
+{
+	xfs_trans_reservations_t	*resp;
+
+	resp = &(mp->m_reservations);
+	resp->tr_write =
+		(uint)(XFS_CALC_WRITE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp));
+	resp->tr_itruncate =
+		(uint)(XFS_CALC_ITRUNCATE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp));
+	resp->tr_rename =
+		(uint)(XFS_CALC_RENAME_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp));
+	resp->tr_link = (uint)XFS_CALC_LINK_LOG_RES(mp);
+	resp->tr_remove =
+		(uint)(XFS_CALC_REMOVE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp));
+	resp->tr_symlink =
+		(uint)(XFS_CALC_SYMLINK_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp));
+	resp->tr_create =
+		(uint)(XFS_CALC_CREATE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp));
+	resp->tr_mkdir =
+		(uint)(XFS_CALC_MKDIR_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp));
+	resp->tr_ifree =
+		(uint)(XFS_CALC_IFREE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp));
+	resp->tr_ichange =
+		(uint)(XFS_CALC_ICHANGE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp));
+	resp->tr_growdata = (uint)XFS_CALC_GROWDATA_LOG_RES(mp);
+	resp->tr_swrite = (uint)XFS_CALC_SWRITE_LOG_RES(mp);
+	resp->tr_writeid = (uint)XFS_CALC_WRITEID_LOG_RES(mp);
+	resp->tr_addafork =
+		(uint)(XFS_CALC_ADDAFORK_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp));
+	resp->tr_attrinval = (uint)XFS_CALC_ATTRINVAL_LOG_RES(mp);
+	resp->tr_attrset =
+		(uint)(XFS_CALC_ATTRSET_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp));
+	resp->tr_attrrm =
+		(uint)(XFS_CALC_ATTRRM_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp));
+	resp->tr_clearagi = (uint)XFS_CALC_CLEAR_AGI_BUCKET_LOG_RES(mp);
+	resp->tr_growrtalloc = (uint)XFS_CALC_GROWRTALLOC_LOG_RES(mp);
+	resp->tr_growrtzero = (uint)XFS_CALC_GROWRTZERO_LOG_RES(mp);
+	resp->tr_growrtfree = (uint)XFS_CALC_GROWRTFREE_LOG_RES(mp);
+}
+
+/*
+ * This routine is called to allocate a transaction structure.
+ * The type parameter indicates the type of the transaction.  These
+ * are enumerated in xfs_trans.h.
+ *
+ * Dynamically allocate the transaction structure from the transaction
+ * zone, initialize it, and return it to the caller.
+ */
+xfs_trans_t *
+xfs_trans_alloc(
+	xfs_mount_t	*mp,
+	uint		type)
+{
+	fs_check_frozen(XFS_MTOVFS(mp), SB_FREEZE_TRANS);
+	atomic_inc(&mp->m_active_trans);
+
+	return (_xfs_trans_alloc(mp, type));
+
+}
+
+xfs_trans_t *
+_xfs_trans_alloc(
+	xfs_mount_t	*mp,
+	uint		type)
+{
+	xfs_trans_t	*tp;
+
+	ASSERT(xfs_trans_zone != NULL);
+	tp = kmem_zone_zalloc(xfs_trans_zone, KM_SLEEP);
+
+	/*
+	 * Initialize the transaction structure.
+	 */
+	tp->t_magic = XFS_TRANS_MAGIC;
+	tp->t_type = type;
+	tp->t_mountp = mp;
+	tp->t_items_free = XFS_LIC_NUM_SLOTS;
+	tp->t_busy_free = XFS_LBC_NUM_SLOTS;
+	XFS_LIC_INIT(&(tp->t_items));
+	XFS_LBC_INIT(&(tp->t_busy));
+
+	return (tp);
+}
+
+/*
+ * This is called to create a new transaction which will share the
+ * permanent log reservation of the given transaction.  The remaining
+ * unused block and rt extent reservations are also inherited.  This
+ * implies that the original transaction is no longer allowed to allocate
+ * blocks.  Locks and log items, however, are no inherited.  They must
+ * be added to the new transaction explicitly.
+ */
+xfs_trans_t *
+xfs_trans_dup(
+	xfs_trans_t	*tp)
+{
+	xfs_trans_t	*ntp;
+
+	ntp = kmem_zone_zalloc(xfs_trans_zone, KM_SLEEP);
+
+	/*
+	 * Initialize the new transaction structure.
+	 */
+	ntp->t_magic = XFS_TRANS_MAGIC;
+	ntp->t_type = tp->t_type;
+	ntp->t_mountp = tp->t_mountp;
+	ntp->t_items_free = XFS_LIC_NUM_SLOTS;
+	ntp->t_busy_free = XFS_LBC_NUM_SLOTS;
+	XFS_LIC_INIT(&(ntp->t_items));
+	XFS_LBC_INIT(&(ntp->t_busy));
+
+	ASSERT(tp->t_flags & XFS_TRANS_PERM_LOG_RES);
+
+#if defined(XLOG_NOLOG) || defined(DEBUG)
+	ASSERT(!xlog_debug || tp->t_ticket != NULL);
+#else
+	ASSERT(tp->t_ticket != NULL);
+#endif
+	ntp->t_flags = XFS_TRANS_PERM_LOG_RES | (tp->t_flags & XFS_TRANS_RESERVE);
+	ntp->t_ticket = tp->t_ticket;
+	ntp->t_blk_res = tp->t_blk_res - tp->t_blk_res_used;
+	tp->t_blk_res = tp->t_blk_res_used;
+	ntp->t_rtx_res = tp->t_rtx_res - tp->t_rtx_res_used;
+	tp->t_rtx_res = tp->t_rtx_res_used;
+	PFLAGS_DUP(&tp->t_pflags, &ntp->t_pflags);
+
+	XFS_TRANS_DUP_DQINFO(tp->t_mountp, tp, ntp);
+
+	atomic_inc(&tp->t_mountp->m_active_trans);
+	return ntp;
+}
+
+/*
+ * This is called to reserve free disk blocks and log space for the
+ * given transaction.  This must be done before allocating any resources
+ * within the transaction.
+ *
+ * This will return ENOSPC if there are not enough blocks available.
+ * It will sleep waiting for available log space.
+ * The only valid value for the flags parameter is XFS_RES_LOG_PERM, which
+ * is used by long running transactions.  If any one of the reservations
+ * fails then they will all be backed out.
+ *
+ * This does not do quota reservations. That typically is done by the
+ * caller afterwards.
+ */
+int
+xfs_trans_reserve(
+	xfs_trans_t	*tp,
+	uint		blocks,
+	uint		logspace,
+	uint		rtextents,
+	uint		flags,
+	uint		logcount)
+{
+	int		log_flags;
+	int		error;
+	int	rsvd;
+
+	error = 0;
+	rsvd = (tp->t_flags & XFS_TRANS_RESERVE) != 0;
+
+	/* Mark this thread as being in a transaction */
+        PFLAGS_SET_FSTRANS(&tp->t_pflags);
+
+	/*
+	 * Attempt to reserve the needed disk blocks by decrementing
+	 * the number needed from the number available.  This will
+	 * fail if the count would go below zero.
+	 */
+	if (blocks > 0) {
+		error = xfs_mod_incore_sb(tp->t_mountp, XFS_SBS_FDBLOCKS,
+					  -blocks, rsvd);
+		if (error != 0) {
+                        PFLAGS_RESTORE_FSTRANS(&tp->t_pflags);
+			return (XFS_ERROR(ENOSPC));
+		}
+		tp->t_blk_res += blocks;
+	}
+
+	/*
+	 * Reserve the log space needed for this transaction.
+	 */
+	if (logspace > 0) {
+		ASSERT((tp->t_log_res == 0) || (tp->t_log_res == logspace));
+		ASSERT((tp->t_log_count == 0) ||
+			(tp->t_log_count == logcount));
+		if (flags & XFS_TRANS_PERM_LOG_RES) {
+			log_flags = XFS_LOG_PERM_RESERV;
+			tp->t_flags |= XFS_TRANS_PERM_LOG_RES;
+		} else {
+			ASSERT(tp->t_ticket == NULL);
+			ASSERT(!(tp->t_flags & XFS_TRANS_PERM_LOG_RES));
+			log_flags = 0;
+		}
+
+		error = xfs_log_reserve(tp->t_mountp, logspace, logcount,
+					&tp->t_ticket,
+					XFS_TRANSACTION, log_flags);
+		if (error) {
+			goto undo_blocks;
+		}
+		tp->t_log_res = logspace;
+		tp->t_log_count = logcount;
+	}
+
+	/*
+	 * Attempt to reserve the needed realtime extents by decrementing
+	 * the number needed from the number available.  This will
+	 * fail if the count would go below zero.
+	 */
+	if (rtextents > 0) {
+		error = xfs_mod_incore_sb(tp->t_mountp, XFS_SBS_FREXTENTS,
+					  -rtextents, rsvd);
+		if (error) {
+			error = XFS_ERROR(ENOSPC);
+			goto undo_log;
+		}
+		tp->t_rtx_res += rtextents;
+	}
+
+	return 0;
+
+	/*
+	 * Error cases jump to one of these labels to undo any
+	 * reservations which have already been performed.
+	 */
+undo_log:
+	if (logspace > 0) {
+		if (flags & XFS_TRANS_PERM_LOG_RES) {
+			log_flags = XFS_LOG_REL_PERM_RESERV;
+		} else {
+			log_flags = 0;
+		}
+		xfs_log_done(tp->t_mountp, tp->t_ticket, NULL, log_flags);
+		tp->t_ticket = NULL;
+		tp->t_log_res = 0;
+		tp->t_flags &= ~XFS_TRANS_PERM_LOG_RES;
+	}
+
+undo_blocks:
+	if (blocks > 0) {
+		(void) xfs_mod_incore_sb(tp->t_mountp, XFS_SBS_FDBLOCKS,
+					 blocks, rsvd);
+		tp->t_blk_res = 0;
+	}
+
+        PFLAGS_RESTORE_FSTRANS(&tp->t_pflags);
+
+	return (error);
+}
+
+
+/*
+ * This is called to set the a callback to be called when the given
+ * transaction is committed to disk.  The transaction pointer and the
+ * argument pointer will be passed to the callback routine.
+ *
+ * Only one callback can be associated with any single transaction.
+ */
+void
+xfs_trans_callback(
+	xfs_trans_t		*tp,
+	xfs_trans_callback_t	callback,
+	void			*arg)
+{
+	ASSERT(tp->t_callback == NULL);
+	tp->t_callback = callback;
+	tp->t_callarg = arg;
+}
+
+
+/*
+ * Record the indicated change to the given field for application
+ * to the file system's superblock when the transaction commits.
+ * For now, just store the change in the transaction structure.
+ *
+ * Mark the transaction structure to indicate that the superblock
+ * needs to be updated before committing.
+ */
+void
+xfs_trans_mod_sb(
+	xfs_trans_t	*tp,
+	uint		field,
+	long		delta)
+{
+
+	switch (field) {
+	case XFS_TRANS_SB_ICOUNT:
+		tp->t_icount_delta += delta;
+		break;
+	case XFS_TRANS_SB_IFREE:
+		tp->t_ifree_delta += delta;
+		break;
+	case XFS_TRANS_SB_FDBLOCKS:
+		/*
+		 * Track the number of blocks allocated in the
+		 * transaction.  Make sure it does not exceed the
+		 * number reserved.
+		 */
+		if (delta < 0) {
+			tp->t_blk_res_used += (uint)-delta;
+			ASSERT(tp->t_blk_res_used <= tp->t_blk_res);
+		}
+		tp->t_fdblocks_delta += delta;
+		break;
+	case XFS_TRANS_SB_RES_FDBLOCKS:
+		/*
+		 * The allocation has already been applied to the
+		 * in-core superblock's counter.  This should only
+		 * be applied to the on-disk superblock.
+		 */
+		ASSERT(delta < 0);
+		tp->t_res_fdblocks_delta += delta;
+		break;
+	case XFS_TRANS_SB_FREXTENTS:
+		/*
+		 * Track the number of blocks allocated in the
+		 * transaction.  Make sure it does not exceed the
+		 * number reserved.
+		 */
+		if (delta < 0) {
+			tp->t_rtx_res_used += (uint)-delta;
+			ASSERT(tp->t_rtx_res_used <= tp->t_rtx_res);
+		}
+		tp->t_frextents_delta += delta;
+		break;
+	case XFS_TRANS_SB_RES_FREXTENTS:
+		/*
+		 * The allocation has already been applied to the
+		 * in-core superblocks's counter.  This should only
+		 * be applied to the on-disk superblock.
+		 */
+		ASSERT(delta < 0);
+		tp->t_res_frextents_delta += delta;
+		break;
+	case XFS_TRANS_SB_DBLOCKS:
+		ASSERT(delta > 0);
+		tp->t_dblocks_delta += delta;
+		break;
+	case XFS_TRANS_SB_AGCOUNT:
+		ASSERT(delta > 0);
+		tp->t_agcount_delta += delta;
+		break;
+	case XFS_TRANS_SB_IMAXPCT:
+		tp->t_imaxpct_delta += delta;
+		break;
+	case XFS_TRANS_SB_REXTSIZE:
+		tp->t_rextsize_delta += delta;
+		break;
+	case XFS_TRANS_SB_RBMBLOCKS:
+		tp->t_rbmblocks_delta += delta;
+		break;
+	case XFS_TRANS_SB_RBLOCKS:
+		tp->t_rblocks_delta += delta;
+		break;
+	case XFS_TRANS_SB_REXTENTS:
+		tp->t_rextents_delta += delta;
+		break;
+	case XFS_TRANS_SB_REXTSLOG:
+		tp->t_rextslog_delta += delta;
+		break;
+	default:
+		ASSERT(0);
+		return;
+	}
+
+	tp->t_flags |= (XFS_TRANS_SB_DIRTY | XFS_TRANS_DIRTY);
+}
+
+/*
+ * xfs_trans_apply_sb_deltas() is called from the commit code
+ * to bring the superblock buffer into the current transaction
+ * and modify it as requested by earlier calls to xfs_trans_mod_sb().
+ *
+ * For now we just look at each field allowed to change and change
+ * it if necessary.
+ */
+STATIC void
+xfs_trans_apply_sb_deltas(
+	xfs_trans_t	*tp)
+{
+	xfs_sb_t	*sbp;
+	xfs_buf_t	*bp;
+	int		whole = 0;
+
+	bp = xfs_trans_getsb(tp, tp->t_mountp, 0);
+	sbp = XFS_BUF_TO_SBP(bp);
+
+	/*
+	 * Check that superblock mods match the mods made to AGF counters.
+	 */
+	ASSERT((tp->t_fdblocks_delta + tp->t_res_fdblocks_delta) ==
+	       (tp->t_ag_freeblks_delta + tp->t_ag_flist_delta +
+		tp->t_ag_btree_delta));
+
+	if (tp->t_icount_delta != 0) {
+		INT_MOD(sbp->sb_icount, ARCH_CONVERT, tp->t_icount_delta);
+	}
+	if (tp->t_ifree_delta != 0) {
+		INT_MOD(sbp->sb_ifree, ARCH_CONVERT, tp->t_ifree_delta);
+	}
+
+	if (tp->t_fdblocks_delta != 0) {
+		INT_MOD(sbp->sb_fdblocks, ARCH_CONVERT, tp->t_fdblocks_delta);
+	}
+	if (tp->t_res_fdblocks_delta != 0) {
+		INT_MOD(sbp->sb_fdblocks, ARCH_CONVERT, tp->t_res_fdblocks_delta);
+	}
+
+	if (tp->t_frextents_delta != 0) {
+		INT_MOD(sbp->sb_frextents, ARCH_CONVERT, tp->t_frextents_delta);
+	}
+	if (tp->t_res_frextents_delta != 0) {
+		INT_MOD(sbp->sb_frextents, ARCH_CONVERT, tp->t_res_frextents_delta);
+	}
+	if (tp->t_dblocks_delta != 0) {
+		INT_MOD(sbp->sb_dblocks, ARCH_CONVERT, tp->t_dblocks_delta);
+		whole = 1;
+	}
+	if (tp->t_agcount_delta != 0) {
+		INT_MOD(sbp->sb_agcount, ARCH_CONVERT, tp->t_agcount_delta);
+		whole = 1;
+	}
+	if (tp->t_imaxpct_delta != 0) {
+		INT_MOD(sbp->sb_imax_pct, ARCH_CONVERT, tp->t_imaxpct_delta);
+		whole = 1;
+	}
+	if (tp->t_rextsize_delta != 0) {
+		INT_MOD(sbp->sb_rextsize, ARCH_CONVERT, tp->t_rextsize_delta);
+		whole = 1;
+	}
+	if (tp->t_rbmblocks_delta != 0) {
+		INT_MOD(sbp->sb_rbmblocks, ARCH_CONVERT, tp->t_rbmblocks_delta);
+		whole = 1;
+	}
+	if (tp->t_rblocks_delta != 0) {
+		INT_MOD(sbp->sb_rblocks, ARCH_CONVERT, tp->t_rblocks_delta);
+		whole = 1;
+	}
+	if (tp->t_rextents_delta != 0) {
+		INT_MOD(sbp->sb_rextents, ARCH_CONVERT, tp->t_rextents_delta);
+		whole = 1;
+	}
+	if (tp->t_rextslog_delta != 0) {
+		INT_MOD(sbp->sb_rextslog, ARCH_CONVERT, tp->t_rextslog_delta);
+		whole = 1;
+	}
+
+	if (whole)
+		/*
+		 * Log the whole thing, the fields are discontiguous.
+		 */
+		xfs_trans_log_buf(tp, bp, 0, sizeof(xfs_sb_t) - 1);
+	else
+		/*
+		 * Since all the modifiable fields are contiguous, we
+		 * can get away with this.
+		 */
+		xfs_trans_log_buf(tp, bp, offsetof(xfs_sb_t, sb_icount),
+				  offsetof(xfs_sb_t, sb_frextents) +
+				  sizeof(sbp->sb_frextents) - 1);
+
+	XFS_MTOVFS(tp->t_mountp)->vfs_super->s_dirt = 1;
+}
+
+/*
+ * xfs_trans_unreserve_and_mod_sb() is called to release unused
+ * reservations and apply superblock counter changes to the in-core
+ * superblock.
+ *
+ * This is done efficiently with a single call to xfs_mod_incore_sb_batch().
+ */
+void
+xfs_trans_unreserve_and_mod_sb(
+	xfs_trans_t	*tp)
+{
+	xfs_mod_sb_t	msb[14];	/* If you add cases, add entries */
+	xfs_mod_sb_t	*msbp;
+	/* REFERENCED */
+	int		error;
+	int		rsvd;
+
+	msbp = msb;
+	rsvd = (tp->t_flags & XFS_TRANS_RESERVE) != 0;
+
+	/*
+	 * Release any reserved blocks.  Any that were allocated
+	 * will be taken back again by fdblocks_delta below.
+	 */
+	if (tp->t_blk_res > 0) {
+		msbp->msb_field = XFS_SBS_FDBLOCKS;
+		msbp->msb_delta = tp->t_blk_res;
+		msbp++;
+	}
+
+	/*
+	 * Release any reserved real time extents .  Any that were
+	 * allocated will be taken back again by frextents_delta below.
+	 */
+	if (tp->t_rtx_res > 0) {
+		msbp->msb_field = XFS_SBS_FREXTENTS;
+		msbp->msb_delta = tp->t_rtx_res;
+		msbp++;
+	}
+
+	/*
+	 * Apply any superblock modifications to the in-core version.
+	 * The t_res_fdblocks_delta and t_res_frextents_delta fields are
+	 * explicity NOT applied to the in-core superblock.
+	 * The idea is that that has already been done.
+	 */
+	if (tp->t_flags & XFS_TRANS_SB_DIRTY) {
+		if (tp->t_icount_delta != 0) {
+			msbp->msb_field = XFS_SBS_ICOUNT;
+			msbp->msb_delta = (int)tp->t_icount_delta;
+			msbp++;
+		}
+		if (tp->t_ifree_delta != 0) {
+			msbp->msb_field = XFS_SBS_IFREE;
+			msbp->msb_delta = (int)tp->t_ifree_delta;
+			msbp++;
+		}
+		if (tp->t_fdblocks_delta != 0) {
+			msbp->msb_field = XFS_SBS_FDBLOCKS;
+			msbp->msb_delta = (int)tp->t_fdblocks_delta;
+			msbp++;
+		}
+		if (tp->t_frextents_delta != 0) {
+			msbp->msb_field = XFS_SBS_FREXTENTS;
+			msbp->msb_delta = (int)tp->t_frextents_delta;
+			msbp++;
+		}
+		if (tp->t_dblocks_delta != 0) {
+			msbp->msb_field = XFS_SBS_DBLOCKS;
+			msbp->msb_delta = (int)tp->t_dblocks_delta;
+			msbp++;
+		}
+		if (tp->t_agcount_delta != 0) {
+			msbp->msb_field = XFS_SBS_AGCOUNT;
+			msbp->msb_delta = (int)tp->t_agcount_delta;
+			msbp++;
+		}
+		if (tp->t_imaxpct_delta != 0) {
+			msbp->msb_field = XFS_SBS_IMAX_PCT;
+			msbp->msb_delta = (int)tp->t_imaxpct_delta;
+			msbp++;
+		}
+		if (tp->t_rextsize_delta != 0) {
+			msbp->msb_field = XFS_SBS_REXTSIZE;
+			msbp->msb_delta = (int)tp->t_rextsize_delta;
+			msbp++;
+		}
+		if (tp->t_rbmblocks_delta != 0) {
+			msbp->msb_field = XFS_SBS_RBMBLOCKS;
+			msbp->msb_delta = (int)tp->t_rbmblocks_delta;
+			msbp++;
+		}
+		if (tp->t_rblocks_delta != 0) {
+			msbp->msb_field = XFS_SBS_RBLOCKS;
+			msbp->msb_delta = (int)tp->t_rblocks_delta;
+			msbp++;
+		}
+		if (tp->t_rextents_delta != 0) {
+			msbp->msb_field = XFS_SBS_REXTENTS;
+			msbp->msb_delta = (int)tp->t_rextents_delta;
+			msbp++;
+		}
+		if (tp->t_rextslog_delta != 0) {
+			msbp->msb_field = XFS_SBS_REXTSLOG;
+			msbp->msb_delta = (int)tp->t_rextslog_delta;
+			msbp++;
+		}
+	}
+
+	/*
+	 * If we need to change anything, do it.
+	 */
+	if (msbp > msb) {
+		error = xfs_mod_incore_sb_batch(tp->t_mountp, msb,
+			(uint)(msbp - msb), rsvd);
+		ASSERT(error == 0);
+	}
+}
+
+
+/*
+ * xfs_trans_commit
+ *
+ * Commit the given transaction to the log a/synchronously.
+ *
+ * XFS disk error handling mechanism is not based on a typical
+ * transaction abort mechanism. Logically after the filesystem
+ * gets marked 'SHUTDOWN', we can't let any new transactions
+ * be durable - ie. committed to disk - because some metadata might
+ * be inconsistent. In such cases, this returns an error, and the
+ * caller may assume that all locked objects joined to the transaction
+ * have already been unlocked as if the commit had succeeded.
+ * Do not reference the transaction structure after this call.
+ */
+ /*ARGSUSED*/
+int
+xfs_trans_commit(
+	xfs_trans_t	*tp,
+	uint		flags,
+	xfs_lsn_t	*commit_lsn_p)
+{
+	xfs_log_iovec_t		*log_vector;
+	int			nvec;
+	xfs_mount_t		*mp;
+	xfs_lsn_t		commit_lsn;
+	/* REFERENCED */
+	int			error;
+	int			log_flags;
+	int			sync;
+#define	XFS_TRANS_LOGVEC_COUNT	16
+	xfs_log_iovec_t		log_vector_fast[XFS_TRANS_LOGVEC_COUNT];
+#if defined(XLOG_NOLOG) || defined(DEBUG)
+	static xfs_lsn_t	trans_lsn = 1;
+#endif
+	void			*commit_iclog;
+	int			shutdown;
+
+	commit_lsn = -1;
+
+	/*
+	 * Determine whether this commit is releasing a permanent
+	 * log reservation or not.
+	 */
+	if (flags & XFS_TRANS_RELEASE_LOG_RES) {
+		ASSERT(tp->t_flags & XFS_TRANS_PERM_LOG_RES);
+		log_flags = XFS_LOG_REL_PERM_RESERV;
+	} else {
+		log_flags = 0;
+	}
+	mp = tp->t_mountp;
+
+	/*
+	 * If there is nothing to be logged by the transaction,
+	 * then unlock all of the items associated with the
+	 * transaction and free the transaction structure.
+	 * Also make sure to return any reserved blocks to
+	 * the free pool.
+	 */
+shut_us_down:
+	shutdown = XFS_FORCED_SHUTDOWN(mp) ? EIO : 0;
+	if (!(tp->t_flags & XFS_TRANS_DIRTY) || shutdown) {
+		xfs_trans_unreserve_and_mod_sb(tp);
+		/*
+		 * It is indeed possible for the transaction to be
+		 * not dirty but the dqinfo portion to be. All that
+		 * means is that we have some (non-persistent) quota
+		 * reservations that need to be unreserved.
+		 */
+		XFS_TRANS_UNRESERVE_AND_MOD_DQUOTS(mp, tp);
+		if (tp->t_ticket) {
+			commit_lsn = xfs_log_done(mp, tp->t_ticket,
+							NULL, log_flags);
+			if (commit_lsn == -1 && !shutdown)
+				shutdown = XFS_ERROR(EIO);
+		}
+                PFLAGS_RESTORE_FSTRANS(&tp->t_pflags);
+		xfs_trans_free_items(tp, shutdown? XFS_TRANS_ABORT : 0);
+		xfs_trans_free_busy(tp);
+		xfs_trans_free(tp);
+		XFS_STATS_INC(xs_trans_empty);
+		if (commit_lsn_p)
+			*commit_lsn_p = commit_lsn;
+		return (shutdown);
+	}
+#if defined(XLOG_NOLOG) || defined(DEBUG)
+	ASSERT(!xlog_debug || tp->t_ticket != NULL);
+#else
+	ASSERT(tp->t_ticket != NULL);
+#endif
+
+	/*
+	 * If we need to update the superblock, then do it now.
+	 */
+	if (tp->t_flags & XFS_TRANS_SB_DIRTY) {
+		xfs_trans_apply_sb_deltas(tp);
+	}
+	XFS_TRANS_APPLY_DQUOT_DELTAS(mp, tp);
+
+	/*
+	 * Ask each log item how many log_vector entries it will
+	 * need so we can figure out how many to allocate.
+	 * Try to avoid the kmem_alloc() call in the common case
+	 * by using a vector from the stack when it fits.
+	 */
+	nvec = xfs_trans_count_vecs(tp);
+
+	if (nvec == 0) {
+		xfs_force_shutdown(mp, XFS_LOG_IO_ERROR);
+		goto shut_us_down;
+	}
+
+
+	if (nvec <= XFS_TRANS_LOGVEC_COUNT) {
+		log_vector = log_vector_fast;
+	} else {
+		log_vector = (xfs_log_iovec_t *)kmem_alloc(nvec *
+						   sizeof(xfs_log_iovec_t),
+						   KM_SLEEP);
+	}
+
+	/*
+	 * Fill in the log_vector and pin the logged items, and
+	 * then write the transaction to the log.
+	 */
+	xfs_trans_fill_vecs(tp, log_vector);
+
+	/*
+	 * Ignore errors here. xfs_log_done would do the right thing.
+	 * We need to put the ticket, etc. away.
+	 */
+	error = xfs_log_write(mp, log_vector, nvec, tp->t_ticket,
+			     &(tp->t_lsn));
+
+#if defined(XLOG_NOLOG) || defined(DEBUG)
+	if (xlog_debug) {
+		commit_lsn = xfs_log_done(mp, tp->t_ticket,
+					  &commit_iclog, log_flags);
+	} else {
+		commit_lsn = 0;
+		tp->t_lsn = trans_lsn++;
+	}
+#else
+	/*
+	 * This is the regular case.  At this point (after the call finishes),
+	 * the transaction is committed incore and could go out to disk at
+	 * any time.  However, all the items associated with the transaction
+	 * are still locked and pinned in memory.
+	 */
+	commit_lsn = xfs_log_done(mp, tp->t_ticket, &commit_iclog, log_flags);
+#endif
+
+	tp->t_commit_lsn = commit_lsn;
+	if (nvec > XFS_TRANS_LOGVEC_COUNT) {
+		kmem_free(log_vector, nvec * sizeof(xfs_log_iovec_t));
+	}
+
+	if (commit_lsn_p)
+		*commit_lsn_p = commit_lsn;
+
+	/*
+	 * If we got a log write error. Unpin the logitems that we
+	 * had pinned, clean up, free trans structure, and return error.
+	 */
+	if (error || commit_lsn == -1) {
+                PFLAGS_RESTORE_FSTRANS(&tp->t_pflags);
+		xfs_trans_uncommit(tp, flags|XFS_TRANS_ABORT);
+		return XFS_ERROR(EIO);
+	}
+
+	/*
+	 * Once the transaction has committed, unused
+	 * reservations need to be released and changes to
+	 * the superblock need to be reflected in the in-core
+	 * version.  Do that now.
+	 */
+	xfs_trans_unreserve_and_mod_sb(tp);
+
+	sync = tp->t_flags & XFS_TRANS_SYNC;
+
+	/*
+	 * Tell the LM to call the transaction completion routine
+	 * when the log write with LSN commit_lsn completes (e.g.
+	 * when the transaction commit really hits the on-disk log).
+	 * After this call we cannot reference tp, because the call
+	 * can happen at any time and the call will free the transaction
+	 * structure pointed to by tp.  The only case where we call
+	 * the completion routine (xfs_trans_committed) directly is
+	 * if the log is turned off on a debug kernel or we're
+	 * running in simulation mode (the log is explicitly turned
+	 * off).
+	 */
+	tp->t_logcb.cb_func = (void(*)(void*, int))xfs_trans_committed;
+	tp->t_logcb.cb_arg = tp;
+
+	/*
+	 * We need to pass the iclog buffer which was used for the
+	 * transaction commit record into this function, and attach
+	 * the callback to it. The callback must be attached before
+	 * the items are unlocked to avoid racing with other threads
+	 * waiting for an item to unlock.
+	 */
+	shutdown = xfs_log_notify(mp, commit_iclog, &(tp->t_logcb));
+
+	/*
+	 * Mark this thread as no longer being in a transaction
+	 */
+	PFLAGS_RESTORE_FSTRANS(&tp->t_pflags);
+
+	/*
+	 * Once all the items of the transaction have been copied
+	 * to the in core log and the callback is attached, the
+	 * items can be unlocked.
+	 *
+	 * This will free descriptors pointing to items which were
+	 * not logged since there is nothing more to do with them.
+	 * For items which were logged, we will keep pointers to them
+	 * so they can be unpinned after the transaction commits to disk.
+	 * This will also stamp each modified meta-data item with
+	 * the commit lsn of this transaction for dependency tracking
+	 * purposes.
+	 */
+	xfs_trans_unlock_items(tp, commit_lsn);
+
+	/*
+	 * If we detected a log error earlier, finish committing
+	 * the transaction now (unpin log items, etc).
+	 *
+	 * Order is critical here, to avoid using the transaction
+	 * pointer after its been freed (by xfs_trans_committed
+	 * either here now, or as a callback).  We cannot do this
+	 * step inside xfs_log_notify as was done earlier because
+	 * of this issue.
+	 */
+	if (shutdown)
+		xfs_trans_committed(tp, XFS_LI_ABORTED);
+
+	/*
+	 * Now that the xfs_trans_committed callback has been attached,
+	 * and the items are released we can finally allow the iclog to
+	 * go to disk.
+	 */
+	error = xfs_log_release_iclog(mp, commit_iclog);
+
+	/*
+	 * If the transaction needs to be synchronous, then force the
+	 * log out now and wait for it.
+	 */
+	if (sync) {
+		if (!error)
+			error = xfs_log_force(mp, commit_lsn,
+				      XFS_LOG_FORCE | XFS_LOG_SYNC);
+		XFS_STATS_INC(xs_trans_sync);
+	} else {
+		XFS_STATS_INC(xs_trans_async);
+	}
+
+	return (error);
+}
+
+
+/*
+ * Total up the number of log iovecs needed to commit this
+ * transaction.  The transaction itself needs one for the
+ * transaction header.  Ask each dirty item in turn how many
+ * it needs to get the total.
+ */
+STATIC uint
+xfs_trans_count_vecs(
+	xfs_trans_t	*tp)
+{
+	int			nvecs;
+	xfs_log_item_desc_t	*lidp;
+
+	nvecs = 1;
+	lidp = xfs_trans_first_item(tp);
+	ASSERT(lidp != NULL);
+
+	/* In the non-debug case we need to start bailing out if we
+	 * didn't find a log_item here, return zero and let trans_commit
+	 * deal with it.
+	 */
+	if (lidp == NULL)
+		return 0;
+
+	while (lidp != NULL) {
+		/*
+		 * Skip items which aren't dirty in this transaction.
+		 */
+		if (!(lidp->lid_flags & XFS_LID_DIRTY)) {
+			lidp = xfs_trans_next_item(tp, lidp);
+			continue;
+		}
+		lidp->lid_size = IOP_SIZE(lidp->lid_item);
+		nvecs += lidp->lid_size;
+		lidp = xfs_trans_next_item(tp, lidp);
+	}
+
+	return nvecs;
+}
+
+/*
+ * Called from the trans_commit code when we notice that
+ * the filesystem is in the middle of a forced shutdown.
+ */
+STATIC void
+xfs_trans_uncommit(
+	xfs_trans_t	*tp,
+	uint		flags)
+{
+	xfs_log_item_desc_t	*lidp;
+
+	for (lidp = xfs_trans_first_item(tp);
+	     lidp != NULL;
+	     lidp = xfs_trans_next_item(tp, lidp)) {
+		/*
+		 * Unpin all but those that aren't dirty.
+		 */
+		if (lidp->lid_flags & XFS_LID_DIRTY)
+			IOP_UNPIN_REMOVE(lidp->lid_item, tp);
+	}
+
+	xfs_trans_unreserve_and_mod_sb(tp);
+	XFS_TRANS_UNRESERVE_AND_MOD_DQUOTS(tp->t_mountp, tp);
+
+	xfs_trans_free_items(tp, flags);
+	xfs_trans_free_busy(tp);
+	xfs_trans_free(tp);
+}
+
+/*
+ * Fill in the vector with pointers to data to be logged
+ * by this transaction.  The transaction header takes
+ * the first vector, and then each dirty item takes the
+ * number of vectors it indicated it needed in xfs_trans_count_vecs().
+ *
+ * As each item fills in the entries it needs, also pin the item
+ * so that it cannot be flushed out until the log write completes.
+ */
+STATIC void
+xfs_trans_fill_vecs(
+	xfs_trans_t		*tp,
+	xfs_log_iovec_t		*log_vector)
+{
+	xfs_log_item_desc_t	*lidp;
+	xfs_log_iovec_t		*vecp;
+	uint			nitems;
+
+	/*
+	 * Skip over the entry for the transaction header, we'll
+	 * fill that in at the end.
+	 */
+	vecp = log_vector + 1;		/* pointer arithmetic */
+
+	nitems = 0;
+	lidp = xfs_trans_first_item(tp);
+	ASSERT(lidp != NULL);
+	while (lidp != NULL) {
+		/*
+		 * Skip items which aren't dirty in this transaction.
+		 */
+		if (!(lidp->lid_flags & XFS_LID_DIRTY)) {
+			lidp = xfs_trans_next_item(tp, lidp);
+			continue;
+		}
+		/*
+		 * The item may be marked dirty but not log anything.
+		 * This can be used to get called when a transaction
+		 * is committed.
+		 */
+		if (lidp->lid_size) {
+			nitems++;
+		}
+		IOP_FORMAT(lidp->lid_item, vecp);
+		vecp += lidp->lid_size;		/* pointer arithmetic */
+		IOP_PIN(lidp->lid_item);
+		lidp = xfs_trans_next_item(tp, lidp);
+	}
+
+	/*
+	 * Now that we've counted the number of items in this
+	 * transaction, fill in the transaction header.
+	 */
+	tp->t_header.th_magic = XFS_TRANS_HEADER_MAGIC;
+	tp->t_header.th_type = tp->t_type;
+	tp->t_header.th_num_items = nitems;
+	log_vector->i_addr = (xfs_caddr_t)&tp->t_header;
+	log_vector->i_len = sizeof(xfs_trans_header_t);
+}
+
+
+/*
+ * Unlock all of the transaction's items and free the transaction.
+ * The transaction must not have modified any of its items, because
+ * there is no way to restore them to their previous state.
+ *
+ * If the transaction has made a log reservation, make sure to release
+ * it as well.
+ */
+void
+xfs_trans_cancel(
+	xfs_trans_t		*tp,
+	int			flags)
+{
+	int			log_flags;
+#ifdef DEBUG
+	xfs_log_item_chunk_t	*licp;
+	xfs_log_item_desc_t	*lidp;
+	xfs_log_item_t		*lip;
+	int			i;
+#endif
+
+	/*
+	 * See if the caller is being too lazy to figure out if
+	 * the transaction really needs an abort.
+	 */
+	if ((flags & XFS_TRANS_ABORT) && !(tp->t_flags & XFS_TRANS_DIRTY))
+		flags &= ~XFS_TRANS_ABORT;
+	/*
+	 * See if the caller is relying on us to shut down the
+	 * filesystem.  This happens in paths where we detect
+	 * corruption and decide to give up.
+	 */
+	if ((tp->t_flags & XFS_TRANS_DIRTY) &&
+	    !XFS_FORCED_SHUTDOWN(tp->t_mountp))
+		xfs_force_shutdown(tp->t_mountp, XFS_CORRUPT_INCORE);
+#ifdef DEBUG
+	if (!(flags & XFS_TRANS_ABORT)) {
+		licp = &(tp->t_items);
+		while (licp != NULL) {
+			lidp = licp->lic_descs;
+			for (i = 0; i < licp->lic_unused; i++, lidp++) {
+				if (XFS_LIC_ISFREE(licp, i)) {
+					continue;
+				}
+
+				lip = lidp->lid_item;
+				if (!XFS_FORCED_SHUTDOWN(tp->t_mountp))
+					ASSERT(!(lip->li_type == XFS_LI_EFD));
+			}
+			licp = licp->lic_next;
+		}
+	}
+#endif
+	xfs_trans_unreserve_and_mod_sb(tp);
+	XFS_TRANS_UNRESERVE_AND_MOD_DQUOTS(tp->t_mountp, tp);
+
+	if (tp->t_ticket) {
+		if (flags & XFS_TRANS_RELEASE_LOG_RES) {
+			ASSERT(tp->t_flags & XFS_TRANS_PERM_LOG_RES);
+			log_flags = XFS_LOG_REL_PERM_RESERV;
+		} else {
+			log_flags = 0;
+		}
+		xfs_log_done(tp->t_mountp, tp->t_ticket, NULL, log_flags);
+	}
+
+	/* mark this thread as no longer being in a transaction */
+        PFLAGS_RESTORE_FSTRANS(&tp->t_pflags);
+
+	xfs_trans_free_items(tp, flags);
+	xfs_trans_free_busy(tp);
+	xfs_trans_free(tp);
+}
+
+
+/*
+ * Free the transaction structure.  If there is more clean up
+ * to do when the structure is freed, add it here.
+ */
+STATIC void
+xfs_trans_free(
+	xfs_trans_t	*tp)
+{
+	atomic_dec(&tp->t_mountp->m_active_trans);
+	XFS_TRANS_FREE_DQINFO(tp->t_mountp, tp);
+	kmem_zone_free(xfs_trans_zone, tp);
+}
+
+
+/*
+ * THIS SHOULD BE REWRITTEN TO USE xfs_trans_next_item().
+ *
+ * This is typically called by the LM when a transaction has been fully
+ * committed to disk.  It needs to unpin the items which have
+ * been logged by the transaction and update their positions
+ * in the AIL if necessary.
+ * This also gets called when the transactions didn't get written out
+ * because of an I/O error. Abortflag & XFS_LI_ABORTED is set then.
+ *
+ * Call xfs_trans_chunk_committed() to process the items in
+ * each chunk.
+ */
+STATIC void
+xfs_trans_committed(
+	xfs_trans_t	*tp,
+	int		abortflag)
+{
+	xfs_log_item_chunk_t	*licp;
+	xfs_log_item_chunk_t	*next_licp;
+	xfs_log_busy_chunk_t	*lbcp;
+	xfs_log_busy_slot_t	*lbsp;
+	int			i;
+
+	/*
+	 * Call the transaction's completion callback if there
+	 * is one.
+	 */
+	if (tp->t_callback != NULL) {
+		tp->t_callback(tp, tp->t_callarg);
+	}
+
+	/*
+	 * Special case the chunk embedded in the transaction.
+	 */
+	licp = &(tp->t_items);
+	if (!(XFS_LIC_ARE_ALL_FREE(licp))) {
+		xfs_trans_chunk_committed(licp, tp->t_lsn, abortflag);
+	}
+
+	/*
+	 * Process the items in each chunk in turn.
+	 */
+	licp = licp->lic_next;
+	while (licp != NULL) {
+		ASSERT(!XFS_LIC_ARE_ALL_FREE(licp));
+		xfs_trans_chunk_committed(licp, tp->t_lsn, abortflag);
+		next_licp = licp->lic_next;
+		kmem_free(licp, sizeof(xfs_log_item_chunk_t));
+		licp = next_licp;
+	}
+
+	/*
+	 * Clear all the per-AG busy list items listed in this transaction
+	 */
+	lbcp = &tp->t_busy;
+	while (lbcp != NULL) {
+		for (i = 0, lbsp = lbcp->lbc_busy; i < lbcp->lbc_unused; i++, lbsp++) {
+			if (!XFS_LBC_ISFREE(lbcp, i)) {
+				xfs_alloc_clear_busy(tp, lbsp->lbc_ag,
+						     lbsp->lbc_idx);
+			}
+		}
+		lbcp = lbcp->lbc_next;
+	}
+	xfs_trans_free_busy(tp);
+
+	/*
+	 * That's it for the transaction structure.  Free it.
+	 */
+	xfs_trans_free(tp);
+}
+
+/*
+ * This is called to perform the commit processing for each
+ * item described by the given chunk.
+ *
+ * The commit processing consists of unlocking items which were
+ * held locked with the SYNC_UNLOCK attribute, calling the committed
+ * routine of each logged item, updating the item's position in the AIL
+ * if necessary, and unpinning each item.  If the committed routine
+ * returns -1, then do nothing further with the item because it
+ * may have been freed.
+ *
+ * Since items are unlocked when they are copied to the incore
+ * log, it is possible for two transactions to be completing
+ * and manipulating the same item simultaneously.  The AIL lock
+ * will protect the lsn field of each item.  The value of this
+ * field can never go backwards.
+ *
+ * We unpin the items after repositioning them in the AIL, because
+ * otherwise they could be immediately flushed and we'd have to race
+ * with the flusher trying to pull the item from the AIL as we add it.
+ */
+STATIC void
+xfs_trans_chunk_committed(
+	xfs_log_item_chunk_t	*licp,
+	xfs_lsn_t		lsn,
+	int			aborted)
+{
+	xfs_log_item_desc_t	*lidp;
+	xfs_log_item_t		*lip;
+	xfs_lsn_t		item_lsn;
+	struct xfs_mount	*mp;
+	int			i;
+	SPLDECL(s);
+
+	lidp = licp->lic_descs;
+	for (i = 0; i < licp->lic_unused; i++, lidp++) {
+		if (XFS_LIC_ISFREE(licp, i)) {
+			continue;
+		}
+
+		lip = lidp->lid_item;
+		if (aborted)
+			lip->li_flags |= XFS_LI_ABORTED;
+
+		/*
+		 * Send in the ABORTED flag to the COMMITTED routine
+		 * so that it knows whether the transaction was aborted
+		 * or not.
+		 */
+		item_lsn = IOP_COMMITTED(lip, lsn);
+
+		/*
+		 * If the committed routine returns -1, make
+		 * no more references to the item.
+		 */
+		if (XFS_LSN_CMP(item_lsn, (xfs_lsn_t)-1) == 0) {
+			continue;
+		}
+
+		/*
+		 * If the returned lsn is greater than what it
+		 * contained before, update the location of the
+		 * item in the AIL.  If it is not, then do nothing.
+		 * Items can never move backwards in the AIL.
+		 *
+		 * While the new lsn should usually be greater, it
+		 * is possible that a later transaction completing
+		 * simultaneously with an earlier one using the
+		 * same item could complete first with a higher lsn.
+		 * This would cause the earlier transaction to fail
+		 * the test below.
+		 */
+		mp = lip->li_mountp;
+		AIL_LOCK(mp,s);
+		if (XFS_LSN_CMP(item_lsn, lip->li_lsn) > 0) {
+			/*
+			 * This will set the item's lsn to item_lsn
+			 * and update the position of the item in
+			 * the AIL.
+			 *
+			 * xfs_trans_update_ail() drops the AIL lock.
+			 */
+			xfs_trans_update_ail(mp, lip, item_lsn, s);
+		} else {
+			AIL_UNLOCK(mp, s);
+		}
+
+		/*
+		 * Now that we've repositioned the item in the AIL,
+		 * unpin it so it can be flushed. Pass information
+		 * about buffer stale state down from the log item
+		 * flags, if anyone else stales the buffer we do not
+		 * want to pay any attention to it.
+		 */
+		IOP_UNPIN(lip, lidp->lid_flags & XFS_LID_BUF_STALE);
+	}
+}
diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h
new file mode 100644
index 00000000000000..bd37ccb85e76d3
--- /dev/null
+++ b/fs/xfs/xfs_trans.h
@@ -0,0 +1,1042 @@
+/*
+ * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef	__XFS_TRANS_H__
+#define	__XFS_TRANS_H__
+
+/*
+ * This is the structure written in the log at the head of
+ * every transaction. It identifies the type and id of the
+ * transaction, and contains the number of items logged by
+ * the transaction so we know how many to expect during recovery.
+ *
+ * Do not change the below structure without redoing the code in
+ * xlog_recover_add_to_trans() and xlog_recover_add_to_cont_trans().
+ */
+typedef struct xfs_trans_header {
+	uint		th_magic;		/* magic number */
+	uint		th_type;		/* transaction type */
+	__int32_t	th_tid;			/* transaction id (unused) */
+	uint		th_num_items;		/* num items logged by trans */
+} xfs_trans_header_t;
+
+#define	XFS_TRANS_HEADER_MAGIC	0x5452414e	/* TRAN */
+
+/*
+ * Log item types.
+ */
+#define	XFS_LI_5_3_BUF		0x1234	/* v1 bufs, 1-block inode buffers */
+#define	XFS_LI_5_3_INODE	0x1235	/* 1-block inode buffers */
+#define	XFS_LI_EFI		0x1236
+#define	XFS_LI_EFD		0x1237
+#define	XFS_LI_IUNLINK		0x1238
+#define	XFS_LI_6_1_INODE	0x1239	/* 4K non-aligned inode bufs */
+#define	XFS_LI_6_1_BUF		0x123a	/* v1, 4K inode buffers */
+#define	XFS_LI_INODE		0x123b	/* aligned ino chunks, var-size ibufs */
+#define	XFS_LI_BUF		0x123c	/* v2 bufs, variable sized inode bufs */
+#define	XFS_LI_DQUOT		0x123d
+#define	XFS_LI_QUOTAOFF		0x123e
+
+/*
+ * Transaction types.  Used to distinguish types of buffers.
+ */
+#define XFS_TRANS_SETATTR_NOT_SIZE	1
+#define XFS_TRANS_SETATTR_SIZE		2
+#define XFS_TRANS_INACTIVE		3
+#define XFS_TRANS_CREATE		4
+#define XFS_TRANS_CREATE_TRUNC		5
+#define XFS_TRANS_TRUNCATE_FILE		6
+#define XFS_TRANS_REMOVE		7
+#define XFS_TRANS_LINK			8
+#define XFS_TRANS_RENAME		9
+#define XFS_TRANS_MKDIR			10
+#define XFS_TRANS_RMDIR			11
+#define XFS_TRANS_SYMLINK		12
+#define XFS_TRANS_SET_DMATTRS		13
+#define XFS_TRANS_GROWFS		14
+#define XFS_TRANS_STRAT_WRITE		15
+#define XFS_TRANS_DIOSTRAT		16
+#define	XFS_TRANS_WRITE_SYNC		17
+#define	XFS_TRANS_WRITEID		18
+#define	XFS_TRANS_ADDAFORK		19
+#define	XFS_TRANS_ATTRINVAL		20
+#define	XFS_TRANS_ATRUNCATE		21
+#define	XFS_TRANS_ATTR_SET		22
+#define	XFS_TRANS_ATTR_RM		23
+#define	XFS_TRANS_ATTR_FLAG		24
+#define	XFS_TRANS_CLEAR_AGI_BUCKET	25
+#define XFS_TRANS_QM_SBCHANGE		26
+/*
+ * Dummy entries since we use the transaction type to index into the
+ * trans_type[] in xlog_recover_print_trans_head()
+ */
+#define XFS_TRANS_DUMMY1		27
+#define XFS_TRANS_DUMMY2		28
+#define XFS_TRANS_QM_QUOTAOFF		29
+#define XFS_TRANS_QM_DQALLOC		30
+#define XFS_TRANS_QM_SETQLIM		31
+#define XFS_TRANS_QM_DQCLUSTER		32
+#define XFS_TRANS_QM_QINOCREATE		33
+#define XFS_TRANS_QM_QUOTAOFF_END	34
+#define XFS_TRANS_SB_UNIT		35
+#define XFS_TRANS_FSYNC_TS		36
+#define	XFS_TRANS_GROWFSRT_ALLOC	37
+#define	XFS_TRANS_GROWFSRT_ZERO		38
+#define	XFS_TRANS_GROWFSRT_FREE		39
+#define	XFS_TRANS_SWAPEXT		40
+/* new transaction types need to be reflected in xfs_logprint(8) */
+
+
+#ifdef __KERNEL__
+struct xfs_buf;
+struct xfs_buftarg;
+struct xfs_efd_log_item;
+struct xfs_efi_log_item;
+struct xfs_inode;
+struct xfs_item_ops;
+struct xfs_log_iovec;
+struct xfs_log_item;
+struct xfs_log_item_desc;
+struct xfs_mount;
+struct xfs_trans;
+struct xfs_dquot_acct;
+
+typedef struct xfs_ail_entry {
+	struct xfs_log_item	*ail_forw;	/* AIL forw pointer */
+	struct xfs_log_item	*ail_back;	/* AIL back pointer */
+} xfs_ail_entry_t;
+
+/*
+ * This structure is passed as a parameter to xfs_trans_push_ail()
+ * and is used to track the what LSN the waiting processes are
+ * waiting to become unused.
+ */
+typedef struct xfs_ail_ticket {
+	xfs_lsn_t		at_lsn;		/* lsn waitin for */
+	struct xfs_ail_ticket	*at_forw;	/* wait list ptr */
+	struct xfs_ail_ticket	*at_back;	/* wait list ptr */
+	sv_t			at_sema;	/* wait sema */
+} xfs_ail_ticket_t;
+
+
+typedef struct xfs_log_item {
+	xfs_ail_entry_t			li_ail;		/* AIL pointers */
+	xfs_lsn_t			li_lsn;		/* last on-disk lsn */
+	struct xfs_log_item_desc	*li_desc;	/* ptr to current desc*/
+	struct xfs_mount		*li_mountp;	/* ptr to fs mount */
+	uint				li_type;	/* item type */
+	uint				li_flags;	/* misc flags */
+	struct xfs_log_item		*li_bio_list;	/* buffer item list */
+	void				(*li_cb)(struct xfs_buf *,
+						 struct xfs_log_item *);
+							/* buffer item iodone */
+							/* callback func */
+	struct xfs_item_ops		*li_ops;	/* function list */
+} xfs_log_item_t;
+
+#define	XFS_LI_IN_AIL	0x1
+#define XFS_LI_ABORTED	0x2
+
+typedef struct xfs_item_ops {
+	uint (*iop_size)(xfs_log_item_t *);
+	void (*iop_format)(xfs_log_item_t *, struct xfs_log_iovec *);
+	void (*iop_pin)(xfs_log_item_t *);
+	void (*iop_unpin)(xfs_log_item_t *, int);
+	void (*iop_unpin_remove)(xfs_log_item_t *, struct xfs_trans *);
+	uint (*iop_trylock)(xfs_log_item_t *);
+	void (*iop_unlock)(xfs_log_item_t *);
+	xfs_lsn_t (*iop_committed)(xfs_log_item_t *, xfs_lsn_t);
+	void (*iop_push)(xfs_log_item_t *);
+	void (*iop_abort)(xfs_log_item_t *);
+	void (*iop_pushbuf)(xfs_log_item_t *);
+	void (*iop_committing)(xfs_log_item_t *, xfs_lsn_t);
+} xfs_item_ops_t;
+
+#define IOP_SIZE(ip)		(*(ip)->li_ops->iop_size)(ip)
+#define IOP_FORMAT(ip,vp)	(*(ip)->li_ops->iop_format)(ip, vp)
+#define IOP_PIN(ip)		(*(ip)->li_ops->iop_pin)(ip)
+#define IOP_UNPIN(ip, flags)	(*(ip)->li_ops->iop_unpin)(ip, flags)
+#define IOP_UNPIN_REMOVE(ip,tp) (*(ip)->li_ops->iop_unpin_remove)(ip, tp)
+#define IOP_TRYLOCK(ip)		(*(ip)->li_ops->iop_trylock)(ip)
+#define IOP_UNLOCK(ip)		(*(ip)->li_ops->iop_unlock)(ip)
+#define IOP_COMMITTED(ip, lsn)	(*(ip)->li_ops->iop_committed)(ip, lsn)
+#define IOP_PUSH(ip)		(*(ip)->li_ops->iop_push)(ip)
+#define IOP_ABORT(ip)		(*(ip)->li_ops->iop_abort)(ip)
+#define IOP_PUSHBUF(ip)		(*(ip)->li_ops->iop_pushbuf)(ip)
+#define IOP_COMMITTING(ip, lsn) (*(ip)->li_ops->iop_committing)(ip, lsn)
+
+/*
+ * Return values for the IOP_TRYLOCK() routines.
+ */
+#define	XFS_ITEM_SUCCESS	0
+#define	XFS_ITEM_PINNED		1
+#define	XFS_ITEM_LOCKED		2
+#define	XFS_ITEM_FLUSHING	3
+#define XFS_ITEM_PUSHBUF	4
+
+#endif	/* __KERNEL__ */
+
+/*
+ * This structure is used to track log items associated with
+ * a transaction.  It points to the log item and keeps some
+ * flags to track the state of the log item.  It also tracks
+ * the amount of space needed to log the item it describes
+ * once we get to commit processing (see xfs_trans_commit()).
+ */
+typedef struct xfs_log_item_desc {
+	xfs_log_item_t	*lid_item;
+	ushort		lid_size;
+	unsigned char	lid_flags;
+	unsigned char	lid_index;
+} xfs_log_item_desc_t;
+
+#define XFS_LID_DIRTY		0x1
+#define XFS_LID_PINNED		0x2
+#define XFS_LID_BUF_STALE	0x8
+
+/*
+ * This structure is used to maintain a chunk list of log_item_desc
+ * structures. The free field is a bitmask indicating which descriptors
+ * in this chunk's array are free.  The unused field is the first value
+ * not used since this chunk was allocated.
+ */
+#define	XFS_LIC_NUM_SLOTS	15
+typedef struct xfs_log_item_chunk {
+	struct xfs_log_item_chunk	*lic_next;
+	ushort				lic_free;
+	ushort				lic_unused;
+	xfs_log_item_desc_t		lic_descs[XFS_LIC_NUM_SLOTS];
+} xfs_log_item_chunk_t;
+
+#define	XFS_LIC_MAX_SLOT	(XFS_LIC_NUM_SLOTS - 1)
+#define	XFS_LIC_FREEMASK	((1 << XFS_LIC_NUM_SLOTS) - 1)
+
+
+/*
+ * Initialize the given chunk.  Set the chunk's free descriptor mask
+ * to indicate that all descriptors are free.  The caller gets to set
+ * lic_unused to the right value (0 matches all free).  The
+ * lic_descs.lid_index values are set up as each desc is allocated.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_INIT)
+void xfs_lic_init(xfs_log_item_chunk_t *cp);
+#define	XFS_LIC_INIT(cp)	xfs_lic_init(cp)
+#else
+#define	XFS_LIC_INIT(cp)	((cp)->lic_free = XFS_LIC_FREEMASK)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_INIT_SLOT)
+void xfs_lic_init_slot(xfs_log_item_chunk_t *cp, int slot);
+#define	XFS_LIC_INIT_SLOT(cp,slot)	xfs_lic_init_slot(cp, slot)
+#else
+#define	XFS_LIC_INIT_SLOT(cp,slot)	\
+	((cp)->lic_descs[slot].lid_index = (unsigned char)(slot))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_VACANCY)
+int xfs_lic_vacancy(xfs_log_item_chunk_t *cp);
+#define	XFS_LIC_VACANCY(cp)		xfs_lic_vacancy(cp)
+#else
+#define	XFS_LIC_VACANCY(cp)		(((cp)->lic_free) & XFS_LIC_FREEMASK)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_ALL_FREE)
+void xfs_lic_all_free(xfs_log_item_chunk_t *cp);
+#define	XFS_LIC_ALL_FREE(cp)		xfs_lic_all_free(cp)
+#else
+#define	XFS_LIC_ALL_FREE(cp)		((cp)->lic_free = XFS_LIC_FREEMASK)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_ARE_ALL_FREE)
+int xfs_lic_are_all_free(xfs_log_item_chunk_t *cp);
+#define	XFS_LIC_ARE_ALL_FREE(cp)	xfs_lic_are_all_free(cp)
+#else
+#define	XFS_LIC_ARE_ALL_FREE(cp)	(((cp)->lic_free & XFS_LIC_FREEMASK) ==\
+					XFS_LIC_FREEMASK)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_ISFREE)
+int xfs_lic_isfree(xfs_log_item_chunk_t *cp, int slot);
+#define	XFS_LIC_ISFREE(cp,slot)	xfs_lic_isfree(cp,slot)
+#else
+#define	XFS_LIC_ISFREE(cp,slot)	((cp)->lic_free & (1 << (slot)))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_CLAIM)
+void xfs_lic_claim(xfs_log_item_chunk_t *cp, int slot);
+#define	XFS_LIC_CLAIM(cp,slot)		xfs_lic_claim(cp,slot)
+#else
+#define	XFS_LIC_CLAIM(cp,slot)		((cp)->lic_free &= ~(1 << (slot)))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_RELSE)
+void xfs_lic_relse(xfs_log_item_chunk_t *cp, int slot);
+#define	XFS_LIC_RELSE(cp,slot)		xfs_lic_relse(cp,slot)
+#else
+#define	XFS_LIC_RELSE(cp,slot)		((cp)->lic_free |= 1 << (slot))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_SLOT)
+xfs_log_item_desc_t *xfs_lic_slot(xfs_log_item_chunk_t *cp, int slot);
+#define	XFS_LIC_SLOT(cp,slot)		xfs_lic_slot(cp,slot)
+#else
+#define	XFS_LIC_SLOT(cp,slot)		(&((cp)->lic_descs[slot]))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_DESC_TO_SLOT)
+int xfs_lic_desc_to_slot(xfs_log_item_desc_t *dp);
+#define	XFS_LIC_DESC_TO_SLOT(dp)	xfs_lic_desc_to_slot(dp)
+#else
+#define	XFS_LIC_DESC_TO_SLOT(dp)	((uint)((dp)->lid_index))
+#endif
+/*
+ * Calculate the address of a chunk given a descriptor pointer:
+ * dp - dp->lid_index give the address of the start of the lic_descs array.
+ * From this we subtract the offset of the lic_descs field in a chunk.
+ * All of this yields the address of the chunk, which is
+ * cast to a chunk pointer.
+ */
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_DESC_TO_CHUNK)
+xfs_log_item_chunk_t *xfs_lic_desc_to_chunk(xfs_log_item_desc_t *dp);
+#define	XFS_LIC_DESC_TO_CHUNK(dp)	xfs_lic_desc_to_chunk(dp)
+#else
+#define	XFS_LIC_DESC_TO_CHUNK(dp)	((xfs_log_item_chunk_t*) \
+					(((xfs_caddr_t)((dp) - (dp)->lid_index)) -\
+					(xfs_caddr_t)(((xfs_log_item_chunk_t*) \
+					0)->lic_descs)))
+#endif
+
+#ifdef __KERNEL__
+/*
+ * This structure is used to maintain a list of block ranges that have been
+ * freed in the transaction.  The ranges are listed in the perag[] busy list
+ * between when they're freed and the transaction is committed to disk.
+ */
+
+typedef struct xfs_log_busy_slot {
+	xfs_agnumber_t		lbc_ag;
+	ushort			lbc_idx;	/* index in perag.busy[] */
+} xfs_log_busy_slot_t;
+
+#define XFS_LBC_NUM_SLOTS	31
+typedef struct xfs_log_busy_chunk {
+	struct xfs_log_busy_chunk	*lbc_next;
+	uint				lbc_free;	/* bitmask of free slots */
+	ushort				lbc_unused;	/* first unused */
+	xfs_log_busy_slot_t		lbc_busy[XFS_LBC_NUM_SLOTS];
+} xfs_log_busy_chunk_t;
+
+#define	XFS_LBC_MAX_SLOT	(XFS_LBC_NUM_SLOTS - 1)
+#define	XFS_LBC_FREEMASK	((1U << XFS_LBC_NUM_SLOTS) - 1)
+
+#define	XFS_LBC_INIT(cp)	((cp)->lbc_free = XFS_LBC_FREEMASK)
+#define	XFS_LBC_CLAIM(cp, slot)	((cp)->lbc_free &= ~(1 << (slot)))
+#define	XFS_LBC_SLOT(cp, slot)	(&((cp)->lbc_busy[(slot)]))
+#define	XFS_LBC_VACANCY(cp)	(((cp)->lbc_free) & XFS_LBC_FREEMASK)
+#define	XFS_LBC_ISFREE(cp, slot) ((cp)->lbc_free & (1 << (slot)))
+
+/*
+ * This is the type of function which can be given to xfs_trans_callback()
+ * to be called upon the transaction's commit to disk.
+ */
+typedef void (*xfs_trans_callback_t)(struct xfs_trans *, void *);
+
+/*
+ * This is the structure maintained for every active transaction.
+ */
+typedef struct xfs_trans {
+	unsigned int		t_magic;	/* magic number */
+	xfs_log_callback_t	t_logcb;	/* log callback struct */
+	struct xfs_trans	*t_forw;	/* async list pointers */
+	struct xfs_trans	*t_back;	/* async list pointers */
+	unsigned int		t_type;		/* transaction type */
+	unsigned int		t_log_res;	/* amt of log space resvd */
+	unsigned int		t_log_count;	/* count for perm log res */
+	unsigned int		t_blk_res;	/* # of blocks resvd */
+	unsigned int		t_blk_res_used;	/* # of resvd blocks used */
+	unsigned int		t_rtx_res;	/* # of rt extents resvd */
+	unsigned int		t_rtx_res_used;	/* # of resvd rt extents used */
+	xfs_log_ticket_t	t_ticket;	/* log mgr ticket */
+	sema_t			t_sema;		/* sema for commit completion */
+	xfs_lsn_t		t_lsn;		/* log seq num of start of
+						 * transaction. */
+	xfs_lsn_t		t_commit_lsn;	/* log seq num of end of
+						 * transaction. */
+	struct xfs_mount	*t_mountp;	/* ptr to fs mount struct */
+	struct xfs_dquot_acct   *t_dqinfo;	/* accting info for dquots */
+	xfs_trans_callback_t	t_callback;	/* transaction callback */
+	void			*t_callarg;	/* callback arg */
+	unsigned int		t_flags;	/* misc flags */
+	long			t_icount_delta;	/* superblock icount change */
+	long			t_ifree_delta;	/* superblock ifree change */
+	long			t_fdblocks_delta; /* superblock fdblocks chg */
+	long			t_res_fdblocks_delta; /* on-disk only chg */
+	long			t_frextents_delta;/* superblock freextents chg*/
+	long			t_res_frextents_delta; /* on-disk only chg */
+	long			t_ag_freeblks_delta; /* debugging counter */
+	long			t_ag_flist_delta; /* debugging counter */
+	long			t_ag_btree_delta; /* debugging counter */
+	long			t_dblocks_delta;/* superblock dblocks change */
+	long			t_agcount_delta;/* superblock agcount change */
+	long			t_imaxpct_delta;/* superblock imaxpct change */
+	long			t_rextsize_delta;/* superblock rextsize chg */
+	long			t_rbmblocks_delta;/* superblock rbmblocks chg */
+	long			t_rblocks_delta;/* superblock rblocks change */
+	long			t_rextents_delta;/* superblocks rextents chg */
+	long			t_rextslog_delta;/* superblocks rextslog chg */
+	unsigned int		t_items_free;	/* log item descs free */
+	xfs_log_item_chunk_t	t_items;	/* first log item desc chunk */
+	xfs_trans_header_t	t_header;	/* header for in-log trans */
+	unsigned int		t_busy_free;	/* busy descs free */
+	xfs_log_busy_chunk_t	t_busy;		/* busy/async free blocks */
+        xfs_pflags_t            t_pflags;       /* saved pflags state */
+} xfs_trans_t;
+
+#endif	/* __KERNEL__ */
+
+
+#define	XFS_TRANS_MAGIC		0x5452414E	/* 'TRAN' */
+/*
+ * Values for t_flags.
+ */
+#define	XFS_TRANS_DIRTY		0x01	/* something needs to be logged */
+#define	XFS_TRANS_SB_DIRTY	0x02	/* superblock is modified */
+#define	XFS_TRANS_PERM_LOG_RES	0x04	/* xact took a permanent log res */
+#define	XFS_TRANS_SYNC		0x08	/* make commit synchronous */
+#define XFS_TRANS_DQ_DIRTY	0x10	/* at least one dquot in trx dirty */
+#define XFS_TRANS_RESERVE	0x20    /* OK to use reserved data blocks */
+
+/*
+ * Values for call flags parameter.
+ */
+#define	XFS_TRANS_NOSLEEP		0x1
+#define	XFS_TRANS_WAIT			0x2
+#define	XFS_TRANS_RELEASE_LOG_RES	0x4
+#define	XFS_TRANS_ABORT			0x8
+
+/*
+ * Field values for xfs_trans_mod_sb.
+ */
+#define	XFS_TRANS_SB_ICOUNT		0x00000001
+#define	XFS_TRANS_SB_IFREE		0x00000002
+#define	XFS_TRANS_SB_FDBLOCKS		0x00000004
+#define	XFS_TRANS_SB_RES_FDBLOCKS	0x00000008
+#define	XFS_TRANS_SB_FREXTENTS		0x00000010
+#define	XFS_TRANS_SB_RES_FREXTENTS	0x00000020
+#define	XFS_TRANS_SB_DBLOCKS		0x00000040
+#define	XFS_TRANS_SB_AGCOUNT		0x00000080
+#define	XFS_TRANS_SB_IMAXPCT		0x00000100
+#define	XFS_TRANS_SB_REXTSIZE		0x00000200
+#define	XFS_TRANS_SB_RBMBLOCKS		0x00000400
+#define	XFS_TRANS_SB_RBLOCKS		0x00000800
+#define	XFS_TRANS_SB_REXTENTS		0x00001000
+#define	XFS_TRANS_SB_REXTSLOG		0x00002000
+
+
+/*
+ * Various log reservation values.
+ * These are based on the size of the file system block
+ * because that is what most transactions manipulate.
+ * Each adds in an additional 128 bytes per item logged to
+ * try to account for the overhead of the transaction mechanism.
+ *
+ * Note:
+ * Most of the reservations underestimate the number of allocation
+ * groups into which they could free extents in the xfs_bmap_finish()
+ * call.  This is because the number in the worst case is quite high
+ * and quite unusual.  In order to fix this we need to change
+ * xfs_bmap_finish() to free extents in only a single AG at a time.
+ * This will require changes to the EFI code as well, however, so that
+ * the EFI for the extents not freed is logged again in each transaction.
+ * See bug 261917.
+ */
+
+/*
+ * Per-extent log reservation for the allocation btree changes
+ * involved in freeing or allocating an extent.
+ * 2 trees * (2 blocks/level * max depth - 1) * block size
+ */
+#define	XFS_ALLOCFREE_LOG_RES(mp,nx) \
+	((nx) * (2 * XFS_FSB_TO_B((mp), 2 * XFS_AG_MAXLEVELS(mp) - 1)))
+#define	XFS_ALLOCFREE_LOG_COUNT(mp,nx) \
+	((nx) * (2 * (2 * XFS_AG_MAXLEVELS(mp) - 1)))
+
+/*
+ * Per-directory log reservation for any directory change.
+ * dir blocks: (1 btree block per level + data block + free block) * dblock size
+ * bmap btree: (levels + 2) * max depth * block size
+ * v2 directory blocks can be fragmented below the dirblksize down to the fsb
+ * size, so account for that in the DAENTER macros.
+ */
+#define	XFS_DIROP_LOG_RES(mp)	\
+	(XFS_FSB_TO_B(mp, XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK)) + \
+	 (XFS_FSB_TO_B(mp, XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1)))
+#define	XFS_DIROP_LOG_COUNT(mp)	\
+	(XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK) + \
+	 XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1)
+
+/*
+ * In a write transaction we can allocate a maximum of 2
+ * extents.  This gives:
+ *    the inode getting the new extents: inode size
+ *    the inode\'s bmap btree: max depth * block size
+ *    the agfs of the ags from which the extents are allocated: 2 * sector
+ *    the superblock free block counter: sector size
+ *    the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size
+ * And the bmap_finish transaction can free bmap blocks in a join:
+ *    the agfs of the ags containing the blocks: 2 * sector size
+ *    the agfls of the ags containing the blocks: 2 * sector size
+ *    the super block free block counter: sector size
+ *    the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size
+ */
+#define XFS_CALC_WRITE_LOG_RES(mp) \
+	(MAX( \
+	 ((mp)->m_sb.sb_inodesize + \
+	  XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)) + \
+	  (2 * (mp)->m_sb.sb_sectsize) + \
+	  (mp)->m_sb.sb_sectsize + \
+	  XFS_ALLOCFREE_LOG_RES(mp, 2) + \
+	  (128 * (4 + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) + XFS_ALLOCFREE_LOG_COUNT(mp, 2)))),\
+	 ((2 * (mp)->m_sb.sb_sectsize) + \
+	  (2 * (mp)->m_sb.sb_sectsize) + \
+	  (mp)->m_sb.sb_sectsize + \
+	  XFS_ALLOCFREE_LOG_RES(mp, 2) + \
+	  (128 * (5 + XFS_ALLOCFREE_LOG_COUNT(mp, 2))))))
+
+#define	XFS_WRITE_LOG_RES(mp)	((mp)->m_reservations.tr_write)
+
+/*
+ * In truncating a file we free up to two extents at once.  We can modify:
+ *    the inode being truncated: inode size
+ *    the inode\'s bmap btree: (max depth + 1) * block size
+ * And the bmap_finish transaction can free the blocks and bmap blocks:
+ *    the agf for each of the ags: 4 * sector size
+ *    the agfl for each of the ags: 4 * sector size
+ *    the super block to reflect the freed blocks: sector size
+ *    worst case split in allocation btrees per extent assuming 4 extents:
+ *		4 exts * 2 trees * (2 * max depth - 1) * block size
+ *    the inode btree: max depth * blocksize
+ *    the allocation btrees: 2 trees * (max depth - 1) * block size
+ */
+#define	XFS_CALC_ITRUNCATE_LOG_RES(mp) \
+	(MAX( \
+	 ((mp)->m_sb.sb_inodesize + \
+	  XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) + 1) + \
+	  (128 * (2 + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)))), \
+	 ((4 * (mp)->m_sb.sb_sectsize) + \
+	  (4 * (mp)->m_sb.sb_sectsize) + \
+	  (mp)->m_sb.sb_sectsize + \
+	  XFS_ALLOCFREE_LOG_RES(mp, 4) + \
+	  (128 * (9 + XFS_ALLOCFREE_LOG_COUNT(mp, 4))) + \
+	  (128 * 5) + \
+	  XFS_ALLOCFREE_LOG_RES(mp, 1) + \
+	   (128 * (2 + XFS_IALLOC_BLOCKS(mp) + XFS_IN_MAXLEVELS(mp) + \
+	    XFS_ALLOCFREE_LOG_COUNT(mp, 1))))))
+
+#define	XFS_ITRUNCATE_LOG_RES(mp)   ((mp)->m_reservations.tr_itruncate)
+
+/*
+ * In renaming a files we can modify:
+ *    the four inodes involved: 4 * inode size
+ *    the two directory btrees: 2 * (max depth + v2) * dir block size
+ *    the two directory bmap btrees: 2 * max depth * block size
+ * And the bmap_finish transaction can free dir and bmap blocks (two sets
+ *	of bmap blocks) giving:
+ *    the agf for the ags in which the blocks live: 3 * sector size
+ *    the agfl for the ags in which the blocks live: 3 * sector size
+ *    the superblock for the free block count: sector size
+ *    the allocation btrees: 3 exts * 2 trees * (2 * max depth - 1) * block size
+ */
+#define	XFS_CALC_RENAME_LOG_RES(mp) \
+	(MAX( \
+	 ((4 * (mp)->m_sb.sb_inodesize) + \
+	  (2 * XFS_DIROP_LOG_RES(mp)) + \
+	  (128 * (4 + 2 * XFS_DIROP_LOG_COUNT(mp)))), \
+	 ((3 * (mp)->m_sb.sb_sectsize) + \
+	  (3 * (mp)->m_sb.sb_sectsize) + \
+	  (mp)->m_sb.sb_sectsize + \
+	  XFS_ALLOCFREE_LOG_RES(mp, 3) + \
+	  (128 * (7 + XFS_ALLOCFREE_LOG_COUNT(mp, 3))))))
+
+#define	XFS_RENAME_LOG_RES(mp)	((mp)->m_reservations.tr_rename)
+
+/*
+ * For creating a link to an inode:
+ *    the parent directory inode: inode size
+ *    the linked inode: inode size
+ *    the directory btree could split: (max depth + v2) * dir block size
+ *    the directory bmap btree could join or split: (max depth + v2) * blocksize
+ * And the bmap_finish transaction can free some bmap blocks giving:
+ *    the agf for the ag in which the blocks live: sector size
+ *    the agfl for the ag in which the blocks live: sector size
+ *    the superblock for the free block count: sector size
+ *    the allocation btrees: 2 trees * (2 * max depth - 1) * block size
+ */
+#define	XFS_CALC_LINK_LOG_RES(mp) \
+	(MAX( \
+	 ((mp)->m_sb.sb_inodesize + \
+	  (mp)->m_sb.sb_inodesize + \
+	  XFS_DIROP_LOG_RES(mp) + \
+	  (128 * (2 + XFS_DIROP_LOG_COUNT(mp)))), \
+	 ((mp)->m_sb.sb_sectsize + \
+	  (mp)->m_sb.sb_sectsize + \
+	  (mp)->m_sb.sb_sectsize + \
+	  XFS_ALLOCFREE_LOG_RES(mp, 1) + \
+	  (128 * (3 + XFS_ALLOCFREE_LOG_COUNT(mp, 1))))))
+
+#define	XFS_LINK_LOG_RES(mp)	((mp)->m_reservations.tr_link)
+
+/*
+ * For removing a directory entry we can modify:
+ *    the parent directory inode: inode size
+ *    the removed inode: inode size
+ *    the directory btree could join: (max depth + v2) * dir block size
+ *    the directory bmap btree could join or split: (max depth + v2) * blocksize
+ * And the bmap_finish transaction can free the dir and bmap blocks giving:
+ *    the agf for the ag in which the blocks live: 2 * sector size
+ *    the agfl for the ag in which the blocks live: 2 * sector size
+ *    the superblock for the free block count: sector size
+ *    the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size
+ */
+#define	XFS_CALC_REMOVE_LOG_RES(mp)	\
+	(MAX( \
+	 ((mp)->m_sb.sb_inodesize + \
+	  (mp)->m_sb.sb_inodesize + \
+	  XFS_DIROP_LOG_RES(mp) + \
+	  (128 * (2 + XFS_DIROP_LOG_COUNT(mp)))), \
+	 ((2 * (mp)->m_sb.sb_sectsize) + \
+	  (2 * (mp)->m_sb.sb_sectsize) + \
+	  (mp)->m_sb.sb_sectsize + \
+	  XFS_ALLOCFREE_LOG_RES(mp, 2) + \
+	  (128 * (5 + XFS_ALLOCFREE_LOG_COUNT(mp, 2))))))
+
+#define	XFS_REMOVE_LOG_RES(mp)	((mp)->m_reservations.tr_remove)
+
+/*
+ * For symlink we can modify:
+ *    the parent directory inode: inode size
+ *    the new inode: inode size
+ *    the inode btree entry: 1 block
+ *    the directory btree: (max depth + v2) * dir block size
+ *    the directory inode\'s bmap btree: (max depth + v2) * block size
+ *    the blocks for the symlink: 1 KB
+ * Or in the first xact we allocate some inodes giving:
+ *    the agi and agf of the ag getting the new inodes: 2 * sectorsize
+ *    the inode blocks allocated: XFS_IALLOC_BLOCKS * blocksize
+ *    the inode btree: max depth * blocksize
+ *    the allocation btrees: 2 trees * (2 * max depth - 1) * block size
+ */
+#define	XFS_CALC_SYMLINK_LOG_RES(mp)		\
+	(MAX( \
+	 ((mp)->m_sb.sb_inodesize + \
+	  (mp)->m_sb.sb_inodesize + \
+	  XFS_FSB_TO_B(mp, 1) + \
+	  XFS_DIROP_LOG_RES(mp) + \
+	  1024 + \
+	  (128 * (4 + XFS_DIROP_LOG_COUNT(mp)))), \
+	 (2 * (mp)->m_sb.sb_sectsize + \
+	  XFS_FSB_TO_B((mp), XFS_IALLOC_BLOCKS((mp))) + \
+	  XFS_FSB_TO_B((mp), XFS_IN_MAXLEVELS(mp)) + \
+	  XFS_ALLOCFREE_LOG_RES(mp, 1) + \
+	  (128 * (2 + XFS_IALLOC_BLOCKS(mp) + XFS_IN_MAXLEVELS(mp) + \
+	   XFS_ALLOCFREE_LOG_COUNT(mp, 1))))))
+
+#define	XFS_SYMLINK_LOG_RES(mp)	((mp)->m_reservations.tr_symlink)
+
+/*
+ * For create we can modify:
+ *    the parent directory inode: inode size
+ *    the new inode: inode size
+ *    the inode btree entry: block size
+ *    the superblock for the nlink flag: sector size
+ *    the directory btree: (max depth + v2) * dir block size
+ *    the directory inode\'s bmap btree: (max depth + v2) * block size
+ * Or in the first xact we allocate some inodes giving:
+ *    the agi and agf of the ag getting the new inodes: 2 * sectorsize
+ *    the superblock for the nlink flag: sector size
+ *    the inode blocks allocated: XFS_IALLOC_BLOCKS * blocksize
+ *    the inode btree: max depth * blocksize
+ *    the allocation btrees: 2 trees * (max depth - 1) * block size
+ */
+#define	XFS_CALC_CREATE_LOG_RES(mp)		\
+	(MAX( \
+	 ((mp)->m_sb.sb_inodesize + \
+	  (mp)->m_sb.sb_inodesize + \
+	  (mp)->m_sb.sb_sectsize + \
+	  XFS_FSB_TO_B(mp, 1) + \
+	  XFS_DIROP_LOG_RES(mp) + \
+	  (128 * (3 + XFS_DIROP_LOG_COUNT(mp)))), \
+	 (3 * (mp)->m_sb.sb_sectsize + \
+	  XFS_FSB_TO_B((mp), XFS_IALLOC_BLOCKS((mp))) + \
+	  XFS_FSB_TO_B((mp), XFS_IN_MAXLEVELS(mp)) + \
+	  XFS_ALLOCFREE_LOG_RES(mp, 1) + \
+	  (128 * (2 + XFS_IALLOC_BLOCKS(mp) + XFS_IN_MAXLEVELS(mp) + \
+	   XFS_ALLOCFREE_LOG_COUNT(mp, 1))))))
+
+#define	XFS_CREATE_LOG_RES(mp)	((mp)->m_reservations.tr_create)
+
+/*
+ * Making a new directory is the same as creating a new file.
+ */
+#define	XFS_CALC_MKDIR_LOG_RES(mp)	XFS_CALC_CREATE_LOG_RES(mp)
+
+#define	XFS_MKDIR_LOG_RES(mp)	((mp)->m_reservations.tr_mkdir)
+
+/*
+ * In freeing an inode we can modify:
+ *    the inode being freed: inode size
+ *    the super block free inode counter: sector size
+ *    the agi hash list and counters: sector size
+ *    the inode btree entry: block size
+ *    the on disk inode before ours in the agi hash list: inode cluster size
+ *    the inode btree: max depth * blocksize
+ *    the allocation btrees: 2 trees * (max depth - 1) * block size
+ */
+#define	XFS_CALC_IFREE_LOG_RES(mp) \
+	((mp)->m_sb.sb_inodesize + \
+	 (mp)->m_sb.sb_sectsize + \
+	 (mp)->m_sb.sb_sectsize + \
+	 XFS_FSB_TO_B((mp), 1) + \
+	 MAX((__uint16_t)XFS_FSB_TO_B((mp), 1), XFS_INODE_CLUSTER_SIZE(mp)) + \
+	 (128 * 5) + \
+	  XFS_ALLOCFREE_LOG_RES(mp, 1) + \
+	  (128 * (2 + XFS_IALLOC_BLOCKS(mp) + XFS_IN_MAXLEVELS(mp) + \
+	   XFS_ALLOCFREE_LOG_COUNT(mp, 1))))
+
+
+#define	XFS_IFREE_LOG_RES(mp)	((mp)->m_reservations.tr_ifree)
+
+/*
+ * When only changing the inode we log the inode and possibly the superblock
+ * We also add a bit of slop for the transaction stuff.
+ */
+#define	XFS_CALC_ICHANGE_LOG_RES(mp)	((mp)->m_sb.sb_inodesize + \
+					 (mp)->m_sb.sb_sectsize + 512)
+
+#define	XFS_ICHANGE_LOG_RES(mp)	((mp)->m_reservations.tr_ichange)
+
+/*
+ * Growing the data section of the filesystem.
+ *	superblock
+ *	agi and agf
+ *	allocation btrees
+ */
+#define	XFS_CALC_GROWDATA_LOG_RES(mp) \
+	((mp)->m_sb.sb_sectsize * 3 + \
+	 XFS_ALLOCFREE_LOG_RES(mp, 1) + \
+	 (128 * (3 + XFS_ALLOCFREE_LOG_COUNT(mp, 1))))
+
+#define	XFS_GROWDATA_LOG_RES(mp)    ((mp)->m_reservations.tr_growdata)
+
+/*
+ * Growing the rt section of the filesystem.
+ * In the first set of transactions (ALLOC) we allocate space to the
+ * bitmap or summary files.
+ *	superblock: sector size
+ *	agf of the ag from which the extent is allocated: sector size
+ *	bmap btree for bitmap/summary inode: max depth * blocksize
+ *	bitmap/summary inode: inode size
+ *	allocation btrees for 1 block alloc: 2 * (2 * maxdepth - 1) * blocksize
+ */
+#define	XFS_CALC_GROWRTALLOC_LOG_RES(mp) \
+	(2 * (mp)->m_sb.sb_sectsize + \
+	 XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)) + \
+	 (mp)->m_sb.sb_inodesize + \
+	 XFS_ALLOCFREE_LOG_RES(mp, 1) + \
+	 (128 * \
+	  (3 + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) + \
+	   XFS_ALLOCFREE_LOG_COUNT(mp, 1))))
+
+#define	XFS_GROWRTALLOC_LOG_RES(mp)	((mp)->m_reservations.tr_growrtalloc)
+
+/*
+ * Growing the rt section of the filesystem.
+ * In the second set of transactions (ZERO) we zero the new metadata blocks.
+ *	one bitmap/summary block: blocksize
+ */
+#define	XFS_CALC_GROWRTZERO_LOG_RES(mp) \
+	((mp)->m_sb.sb_blocksize + 128)
+
+#define	XFS_GROWRTZERO_LOG_RES(mp)	((mp)->m_reservations.tr_growrtzero)
+
+/*
+ * Growing the rt section of the filesystem.
+ * In the third set of transactions (FREE) we update metadata without
+ * allocating any new blocks.
+ *	superblock: sector size
+ *	bitmap inode: inode size
+ *	summary inode: inode size
+ *	one bitmap block: blocksize
+ *	summary blocks: new summary size
+ */
+#define	XFS_CALC_GROWRTFREE_LOG_RES(mp) \
+	((mp)->m_sb.sb_sectsize + \
+	 2 * (mp)->m_sb.sb_inodesize + \
+	 (mp)->m_sb.sb_blocksize + \
+	 (mp)->m_rsumsize + \
+	 (128 * 5))
+
+#define	XFS_GROWRTFREE_LOG_RES(mp)	((mp)->m_reservations.tr_growrtfree)
+
+/*
+ * Logging the inode modification timestamp on a synchronous write.
+ *	inode
+ */
+#define	XFS_CALC_SWRITE_LOG_RES(mp) \
+	((mp)->m_sb.sb_inodesize + 128)
+
+#define	XFS_SWRITE_LOG_RES(mp)	((mp)->m_reservations.tr_swrite)
+
+/*
+ * Logging the inode timestamps on an fsync -- same as SWRITE
+ * as long as SWRITE logs the entire inode core
+ */
+#define XFS_FSYNC_TS_LOG_RES(mp)        ((mp)->m_reservations.tr_swrite)
+
+/*
+ * Logging the inode mode bits when writing a setuid/setgid file
+ *	inode
+ */
+#define	XFS_CALC_WRITEID_LOG_RES(mp) \
+	((mp)->m_sb.sb_inodesize + 128)
+
+#define	XFS_WRITEID_LOG_RES(mp)	((mp)->m_reservations.tr_swrite)
+
+/*
+ * Converting the inode from non-attributed to attributed.
+ *	the inode being converted: inode size
+ *	agf block and superblock (for block allocation)
+ *	the new block (directory sized)
+ *	bmap blocks for the new directory block
+ *	allocation btrees
+ */
+#define	XFS_CALC_ADDAFORK_LOG_RES(mp)	\
+	((mp)->m_sb.sb_inodesize + \
+	 (mp)->m_sb.sb_sectsize * 2 + \
+	 (mp)->m_dirblksize + \
+	 (XFS_DIR_IS_V1(mp) ? 0 : \
+	    XFS_FSB_TO_B(mp, (XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK) + 1))) + \
+	 XFS_ALLOCFREE_LOG_RES(mp, 1) + \
+	 (128 * (4 + \
+		 (XFS_DIR_IS_V1(mp) ? 0 : \
+			 XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK) + 1) + \
+		 XFS_ALLOCFREE_LOG_COUNT(mp, 1))))
+
+#define	XFS_ADDAFORK_LOG_RES(mp)	((mp)->m_reservations.tr_addafork)
+
+/*
+ * Removing the attribute fork of a file
+ *    the inode being truncated: inode size
+ *    the inode\'s bmap btree: max depth * block size
+ * And the bmap_finish transaction can free the blocks and bmap blocks:
+ *    the agf for each of the ags: 4 * sector size
+ *    the agfl for each of the ags: 4 * sector size
+ *    the super block to reflect the freed blocks: sector size
+ *    worst case split in allocation btrees per extent assuming 4 extents:
+ *		4 exts * 2 trees * (2 * max depth - 1) * block size
+ */
+#define	XFS_CALC_ATTRINVAL_LOG_RES(mp)	\
+	(MAX( \
+	 ((mp)->m_sb.sb_inodesize + \
+	  XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)) + \
+	  (128 * (1 + XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)))), \
+	 ((4 * (mp)->m_sb.sb_sectsize) + \
+	  (4 * (mp)->m_sb.sb_sectsize) + \
+	  (mp)->m_sb.sb_sectsize + \
+	  XFS_ALLOCFREE_LOG_RES(mp, 4) + \
+	  (128 * (9 + XFS_ALLOCFREE_LOG_COUNT(mp, 4))))))
+
+#define	XFS_ATTRINVAL_LOG_RES(mp)	((mp)->m_reservations.tr_attrinval)
+
+/*
+ * Setting an attribute.
+ *	the inode getting the attribute
+ *	the superblock for allocations
+ *	the agfs extents are allocated from
+ *	the attribute btree * max depth
+ *	the inode allocation btree
+ * Since attribute transaction space is dependent on the size of the attribute,
+ * the calculation is done partially at mount time and partially at runtime.
+ */
+#define	XFS_CALC_ATTRSET_LOG_RES(mp)	\
+	((mp)->m_sb.sb_inodesize + \
+	 (mp)->m_sb.sb_sectsize + \
+	  XFS_FSB_TO_B((mp), XFS_DA_NODE_MAXDEPTH) + \
+	  (128 * (2 + XFS_DA_NODE_MAXDEPTH)))
+
+#define	XFS_ATTRSET_LOG_RES(mp, ext)	\
+	((mp)->m_reservations.tr_attrset + \
+	 (ext * (mp)->m_sb.sb_sectsize) + \
+	 (ext * XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK))) + \
+	 (128 * (ext + (ext * XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)))))
+
+/*
+ * Removing an attribute.
+ *    the inode: inode size
+ *    the attribute btree could join: max depth * block size
+ *    the inode bmap btree could join or split: max depth * block size
+ * And the bmap_finish transaction can free the attr blocks freed giving:
+ *    the agf for the ag in which the blocks live: 2 * sector size
+ *    the agfl for the ag in which the blocks live: 2 * sector size
+ *    the superblock for the free block count: sector size
+ *    the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size
+ */
+#define	XFS_CALC_ATTRRM_LOG_RES(mp)	\
+	(MAX( \
+	  ((mp)->m_sb.sb_inodesize + \
+	  XFS_FSB_TO_B((mp), XFS_DA_NODE_MAXDEPTH) + \
+	  XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)) + \
+	  (128 * (1 + XFS_DA_NODE_MAXDEPTH + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)))), \
+	 ((2 * (mp)->m_sb.sb_sectsize) + \
+	  (2 * (mp)->m_sb.sb_sectsize) + \
+	  (mp)->m_sb.sb_sectsize + \
+	  XFS_ALLOCFREE_LOG_RES(mp, 2) + \
+	  (128 * (5 + XFS_ALLOCFREE_LOG_COUNT(mp, 2))))))
+
+#define	XFS_ATTRRM_LOG_RES(mp)	((mp)->m_reservations.tr_attrrm)
+
+/*
+ * Clearing a bad agino number in an agi hash bucket.
+ */
+#define	XFS_CALC_CLEAR_AGI_BUCKET_LOG_RES(mp) \
+	((mp)->m_sb.sb_sectsize + 128)
+
+#define	XFS_CLEAR_AGI_BUCKET_LOG_RES(mp)  ((mp)->m_reservations.tr_clearagi)
+
+
+/*
+ * Various log count values.
+ */
+#define	XFS_DEFAULT_LOG_COUNT		1
+#define	XFS_DEFAULT_PERM_LOG_COUNT	2
+#define	XFS_ITRUNCATE_LOG_COUNT		2
+#define XFS_INACTIVE_LOG_COUNT		2
+#define	XFS_CREATE_LOG_COUNT		2
+#define	XFS_MKDIR_LOG_COUNT		3
+#define	XFS_SYMLINK_LOG_COUNT		3
+#define	XFS_REMOVE_LOG_COUNT		2
+#define	XFS_LINK_LOG_COUNT		2
+#define	XFS_RENAME_LOG_COUNT		2
+#define	XFS_WRITE_LOG_COUNT		2
+#define	XFS_ADDAFORK_LOG_COUNT		2
+#define	XFS_ATTRINVAL_LOG_COUNT		1
+#define	XFS_ATTRSET_LOG_COUNT		3
+#define	XFS_ATTRRM_LOG_COUNT		3
+
+/*
+ * Here we centralize the specification of XFS meta-data buffer
+ * reference count values.  This determine how hard the buffer
+ * cache tries to hold onto the buffer.
+ */
+#define	XFS_AGF_REF		4
+#define	XFS_AGI_REF		4
+#define	XFS_AGFL_REF		3
+#define	XFS_INO_BTREE_REF	3
+#define	XFS_ALLOC_BTREE_REF	2
+#define	XFS_BMAP_BTREE_REF	2
+#define	XFS_DIR_BTREE_REF	2
+#define	XFS_ATTR_BTREE_REF	1
+#define	XFS_INO_REF		1
+#define	XFS_DQUOT_REF		1
+
+#ifdef __KERNEL__
+/*
+ * XFS transaction mechanism exported interfaces that are
+ * actually macros.
+ */
+#define	xfs_trans_get_log_res(tp)	((tp)->t_log_res)
+#define	xfs_trans_get_log_count(tp)	((tp)->t_log_count)
+#define	xfs_trans_get_block_res(tp)	((tp)->t_blk_res)
+#define	xfs_trans_set_sync(tp)		((tp)->t_flags |= XFS_TRANS_SYNC)
+
+#ifdef DEBUG
+#define	xfs_trans_agblocks_delta(tp, d)	((tp)->t_ag_freeblks_delta += (long)d)
+#define	xfs_trans_agflist_delta(tp, d)	((tp)->t_ag_flist_delta += (long)d)
+#define	xfs_trans_agbtree_delta(tp, d)	((tp)->t_ag_btree_delta += (long)d)
+#else
+#define	xfs_trans_agblocks_delta(tp, d)
+#define	xfs_trans_agflist_delta(tp, d)
+#define	xfs_trans_agbtree_delta(tp, d)
+#endif
+
+/*
+ * XFS transaction mechanism exported interfaces.
+ */
+void		xfs_trans_init(struct xfs_mount *);
+xfs_trans_t	*xfs_trans_alloc(struct xfs_mount *, uint);
+xfs_trans_t	*_xfs_trans_alloc(struct xfs_mount *, uint);
+xfs_trans_t	*xfs_trans_dup(xfs_trans_t *);
+int		xfs_trans_reserve(xfs_trans_t *, uint, uint, uint,
+				  uint, uint);
+void		xfs_trans_callback(xfs_trans_t *,
+				   void (*)(xfs_trans_t *, void *), void *);
+void		xfs_trans_mod_sb(xfs_trans_t *, uint, long);
+struct xfs_buf	*xfs_trans_get_buf(xfs_trans_t *, struct xfs_buftarg *, xfs_daddr_t,
+				   int, uint);
+int		xfs_trans_read_buf(struct xfs_mount *, xfs_trans_t *,
+				   struct xfs_buftarg *, xfs_daddr_t, int, uint,
+				   struct xfs_buf **);
+struct xfs_buf	*xfs_trans_getsb(xfs_trans_t *, struct xfs_mount *, int);
+
+void		xfs_trans_brelse(xfs_trans_t *, struct xfs_buf *);
+void		xfs_trans_bjoin(xfs_trans_t *, struct xfs_buf *);
+void		xfs_trans_bhold(xfs_trans_t *, struct xfs_buf *);
+void		xfs_trans_binval(xfs_trans_t *, struct xfs_buf *);
+void		xfs_trans_inode_buf(xfs_trans_t *, struct xfs_buf *);
+void		xfs_trans_inode_buf(xfs_trans_t *, struct xfs_buf *);
+void		xfs_trans_stale_inode_buf(xfs_trans_t *, struct xfs_buf *);
+void		xfs_trans_dquot_buf(xfs_trans_t *, struct xfs_buf *, uint);
+void		xfs_trans_inode_alloc_buf(xfs_trans_t *, struct xfs_buf *);
+int		xfs_trans_iget(struct xfs_mount *, xfs_trans_t *,
+			       xfs_ino_t , uint, uint, struct xfs_inode **);
+void		xfs_trans_ijoin(xfs_trans_t *, struct xfs_inode *, uint);
+void		xfs_trans_ihold(xfs_trans_t *, struct xfs_inode *);
+void		xfs_trans_ihold_release(xfs_trans_t *, struct xfs_inode *);
+void		xfs_trans_log_buf(xfs_trans_t *, struct xfs_buf *, uint, uint);
+void		xfs_trans_log_inode(xfs_trans_t *, struct xfs_inode *, uint);
+struct xfs_efi_log_item	*xfs_trans_get_efi(xfs_trans_t *, uint);
+void		xfs_efi_release(struct xfs_efi_log_item *, uint);
+void		xfs_trans_log_efi_extent(xfs_trans_t *,
+					 struct xfs_efi_log_item *,
+					 xfs_fsblock_t,
+					 xfs_extlen_t);
+struct xfs_efd_log_item	*xfs_trans_get_efd(xfs_trans_t *,
+				  struct xfs_efi_log_item *,
+				  uint);
+void		xfs_trans_log_efd_extent(xfs_trans_t *,
+					 struct xfs_efd_log_item *,
+					 xfs_fsblock_t,
+					 xfs_extlen_t);
+int		xfs_trans_commit(xfs_trans_t *, uint flags, xfs_lsn_t *);
+void		xfs_trans_cancel(xfs_trans_t *, int);
+void		xfs_trans_ail_init(struct xfs_mount *);
+xfs_lsn_t	xfs_trans_push_ail(struct xfs_mount *, xfs_lsn_t);
+xfs_lsn_t	xfs_trans_tail_ail(struct xfs_mount *);
+void		xfs_trans_unlocked_item(struct xfs_mount *,
+					xfs_log_item_t *);
+xfs_log_busy_slot_t *xfs_trans_add_busy(xfs_trans_t *tp,
+					xfs_agnumber_t ag,
+					xfs_extlen_t idx);
+
+#endif	/* __KERNEL__ */
+
+#endif	/* __XFS_TRANS_H__ */
diff --git a/fs/xfs/xfs_trans_ail.c b/fs/xfs/xfs_trans_ail.c
new file mode 100644
index 00000000000000..7bc5eab4c2c19c
--- /dev/null
+++ b/fs/xfs/xfs_trans_ail.c
@@ -0,0 +1,596 @@
+/*
+ * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_dir.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_trans_priv.h"
+#include "xfs_error.h"
+
+STATIC void xfs_ail_insert(xfs_ail_entry_t *, xfs_log_item_t *);
+STATIC xfs_log_item_t * xfs_ail_delete(xfs_ail_entry_t *, xfs_log_item_t *);
+STATIC xfs_log_item_t * xfs_ail_min(xfs_ail_entry_t *);
+STATIC xfs_log_item_t * xfs_ail_next(xfs_ail_entry_t *, xfs_log_item_t *);
+
+#ifdef DEBUG
+STATIC void xfs_ail_check(xfs_ail_entry_t *);
+#else
+#define	xfs_ail_check(a)
+#endif /* DEBUG */
+
+
+/*
+ * This is called by the log manager code to determine the LSN
+ * of the tail of the log.  This is exactly the LSN of the first
+ * item in the AIL.  If the AIL is empty, then this function
+ * returns 0.
+ *
+ * We need the AIL lock in order to get a coherent read of the
+ * lsn of the last item in the AIL.
+ */
+xfs_lsn_t
+xfs_trans_tail_ail(
+	xfs_mount_t	*mp)
+{
+	xfs_lsn_t	lsn;
+	xfs_log_item_t	*lip;
+	SPLDECL(s);
+
+	AIL_LOCK(mp,s);
+	lip = xfs_ail_min(&(mp->m_ail));
+	if (lip == NULL) {
+		lsn = (xfs_lsn_t)0;
+	} else {
+		lsn = lip->li_lsn;
+	}
+	AIL_UNLOCK(mp, s);
+
+	return lsn;
+}
+
+/*
+ * xfs_trans_push_ail
+ *
+ * This routine is called to move the tail of the AIL
+ * forward.  It does this by trying to flush items in the AIL
+ * whose lsns are below the given threshold_lsn.
+ *
+ * The routine returns the lsn of the tail of the log.
+ */
+xfs_lsn_t
+xfs_trans_push_ail(
+	xfs_mount_t		*mp,
+	xfs_lsn_t		threshold_lsn)
+{
+	xfs_lsn_t		lsn;
+	xfs_log_item_t		*lip;
+	int			gen;
+	int			restarts;
+	int			lock_result;
+	int			flush_log;
+	SPLDECL(s);
+
+#define	XFS_TRANS_PUSH_AIL_RESTARTS	10
+
+	AIL_LOCK(mp,s);
+	lip = xfs_trans_first_ail(mp, &gen);
+	if (lip == NULL || XFS_FORCED_SHUTDOWN(mp)) {
+		/*
+		 * Just return if the AIL is empty.
+		 */
+		AIL_UNLOCK(mp, s);
+		return (xfs_lsn_t)0;
+	}
+
+	XFS_STATS_INC(xs_push_ail);
+
+	/*
+	 * While the item we are looking at is below the given threshold
+	 * try to flush it out.  Make sure to limit the number of times
+	 * we allow xfs_trans_next_ail() to restart scanning from the
+	 * beginning of the list.  We'd like not to stop until we've at least
+	 * tried to push on everything in the AIL with an LSN less than
+	 * the given threshold. However, we may give up before that if
+	 * we realize that we've been holding the AIL_LOCK for 'too long',
+	 * blocking interrupts. Currently, too long is < 500us roughly.
+	 */
+	flush_log = 0;
+	restarts = 0;
+	while (((restarts < XFS_TRANS_PUSH_AIL_RESTARTS) &&
+		(XFS_LSN_CMP(lip->li_lsn, threshold_lsn) < 0))) {
+		/*
+		 * If we can lock the item without sleeping, unlock
+		 * the AIL lock and flush the item.  Then re-grab the
+		 * AIL lock so we can look for the next item on the
+		 * AIL.  Since we unlock the AIL while we flush the
+		 * item, the next routine may start over again at the
+		 * the beginning of the list if anything has changed.
+		 * That is what the generation count is for.
+		 *
+		 * If we can't lock the item, either its holder will flush
+		 * it or it is already being flushed or it is being relogged.
+		 * In any of these case it is being taken care of and we
+		 * can just skip to the next item in the list.
+		 */
+		lock_result = IOP_TRYLOCK(lip);
+		switch (lock_result) {
+		      case XFS_ITEM_SUCCESS:
+			AIL_UNLOCK(mp, s);
+			XFS_STATS_INC(xs_push_ail_success);
+			IOP_PUSH(lip);
+			AIL_LOCK(mp,s);
+			break;
+
+		      case XFS_ITEM_PUSHBUF:
+			AIL_UNLOCK(mp, s);
+			XFS_STATS_INC(xs_push_ail_pushbuf);
+#ifdef XFSRACEDEBUG
+			delay_for_intr();
+			delay(300);
+#endif
+			ASSERT(lip->li_ops->iop_pushbuf);
+			ASSERT(lip);
+			IOP_PUSHBUF(lip);
+			AIL_LOCK(mp,s);
+			break;
+
+		      case XFS_ITEM_PINNED:
+			XFS_STATS_INC(xs_push_ail_pinned);
+			flush_log = 1;
+			break;
+
+		      case XFS_ITEM_LOCKED:
+			XFS_STATS_INC(xs_push_ail_locked);
+			break;
+
+		      case XFS_ITEM_FLUSHING:
+			XFS_STATS_INC(xs_push_ail_flushing);
+			break;
+
+		      default:
+			ASSERT(0);
+			break;
+		}
+
+		lip = xfs_trans_next_ail(mp, lip, &gen, &restarts);
+		if (lip == NULL) {
+			break;
+		}
+		if (XFS_FORCED_SHUTDOWN(mp)) {
+			/*
+			 * Just return if we shut down during the last try.
+			 */
+			AIL_UNLOCK(mp, s);
+			return (xfs_lsn_t)0;
+		}
+
+	}
+
+	if (flush_log) {
+		/*
+		 * If something we need to push out was pinned, then
+		 * push out the log so it will become unpinned and
+		 * move forward in the AIL.
+		 */
+		AIL_UNLOCK(mp, s);
+		XFS_STATS_INC(xs_push_ail_flush);
+		xfs_log_force(mp, (xfs_lsn_t)0, XFS_LOG_FORCE);
+		AIL_LOCK(mp, s);
+	}
+
+	lip = xfs_ail_min(&(mp->m_ail));
+	if (lip == NULL) {
+		lsn = (xfs_lsn_t)0;
+	} else {
+		lsn = lip->li_lsn;
+	}
+
+	AIL_UNLOCK(mp, s);
+	return lsn;
+}	/* xfs_trans_push_ail */
+
+
+/*
+ * This is to be called when an item is unlocked that may have
+ * been in the AIL.  It will wake up the first member of the AIL
+ * wait list if this item's unlocking might allow it to progress.
+ * If the item is in the AIL, then we need to get the AIL lock
+ * while doing our checking so we don't race with someone going
+ * to sleep waiting for this event in xfs_trans_push_ail().
+ */
+void
+xfs_trans_unlocked_item(
+	xfs_mount_t	*mp,
+	xfs_log_item_t	*lip)
+{
+	xfs_log_item_t	*min_lip;
+
+	/*
+	 * If we're forcibly shutting down, we may have
+	 * unlocked log items arbitrarily. The last thing
+	 * we want to do is to move the tail of the log
+	 * over some potentially valid data.
+	 */
+	if (!(lip->li_flags & XFS_LI_IN_AIL) ||
+	    XFS_FORCED_SHUTDOWN(mp)) {
+		return;
+	}
+
+	/*
+	 * This is the one case where we can call into xfs_ail_min()
+	 * without holding the AIL lock because we only care about the
+	 * case where we are at the tail of the AIL.  If the object isn't
+	 * at the tail, it doesn't matter what result we get back.  This
+	 * is slightly racy because since we were just unlocked, we could
+	 * go to sleep between the call to xfs_ail_min and the call to
+	 * xfs_log_move_tail, have someone else lock us, commit to us disk,
+	 * move us out of the tail of the AIL, and then we wake up.  However,
+	 * the call to xfs_log_move_tail() doesn't do anything if there's
+	 * not enough free space to wake people up so we're safe calling it.
+	 */
+	min_lip = xfs_ail_min(&mp->m_ail);
+
+	if (min_lip == lip)
+		xfs_log_move_tail(mp, 1);
+}	/* xfs_trans_unlocked_item */
+
+
+/*
+ * Update the position of the item in the AIL with the new
+ * lsn.  If it is not yet in the AIL, add it.  Otherwise, move
+ * it to its new position by removing it and re-adding it.
+ *
+ * Wakeup anyone with an lsn less than the item's lsn.  If the item
+ * we move in the AIL is the minimum one, update the tail lsn in the
+ * log manager.
+ *
+ * Increment the AIL's generation count to indicate that the tree
+ * has changed.
+ *
+ * This function must be called with the AIL lock held.  The lock
+ * is dropped before returning, so the caller must pass in the
+ * cookie returned by AIL_LOCK.
+ */
+void
+xfs_trans_update_ail(
+	xfs_mount_t	*mp,
+	xfs_log_item_t	*lip,
+	xfs_lsn_t	lsn,
+	unsigned long	s)
+{
+	xfs_ail_entry_t		*ailp;
+	xfs_log_item_t		*dlip=NULL;
+	xfs_log_item_t		*mlip;	/* ptr to minimum lip */
+
+	ailp = &(mp->m_ail);
+	mlip = xfs_ail_min(ailp);
+
+	if (lip->li_flags & XFS_LI_IN_AIL) {
+		dlip = xfs_ail_delete(ailp, lip);
+		ASSERT(dlip == lip);
+	} else {
+		lip->li_flags |= XFS_LI_IN_AIL;
+	}
+
+	lip->li_lsn = lsn;
+
+	xfs_ail_insert(ailp, lip);
+	mp->m_ail_gen++;
+
+	if (mlip == dlip) {
+		mlip = xfs_ail_min(&(mp->m_ail));
+		AIL_UNLOCK(mp, s);
+		xfs_log_move_tail(mp, mlip->li_lsn);
+	} else {
+		AIL_UNLOCK(mp, s);
+	}
+
+
+}	/* xfs_trans_update_ail */
+
+/*
+ * Delete the given item from the AIL.  It must already be in
+ * the AIL.
+ *
+ * Wakeup anyone with an lsn less than item's lsn.    If the item
+ * we delete in the AIL is the minimum one, update the tail lsn in the
+ * log manager.
+ *
+ * Clear the IN_AIL flag from the item, reset its lsn to 0, and
+ * bump the AIL's generation count to indicate that the tree
+ * has changed.
+ *
+ * This function must be called with the AIL lock held.  The lock
+ * is dropped before returning, so the caller must pass in the
+ * cookie returned by AIL_LOCK.
+ */
+void
+xfs_trans_delete_ail(
+	xfs_mount_t	*mp,
+	xfs_log_item_t	*lip,
+	unsigned long	s)
+{
+	xfs_ail_entry_t		*ailp;
+	xfs_log_item_t		*dlip;
+	xfs_log_item_t		*mlip;
+
+	if (lip->li_flags & XFS_LI_IN_AIL) {
+		ailp = &(mp->m_ail);
+		mlip = xfs_ail_min(ailp);
+		dlip = xfs_ail_delete(ailp, lip);
+		ASSERT(dlip == lip);
+
+
+		lip->li_flags &= ~XFS_LI_IN_AIL;
+		lip->li_lsn = 0;
+		mp->m_ail_gen++;
+
+		if (mlip == dlip) {
+			mlip = xfs_ail_min(&(mp->m_ail));
+			AIL_UNLOCK(mp, s);
+			xfs_log_move_tail(mp, (mlip ? mlip->li_lsn : 0));
+		} else {
+			AIL_UNLOCK(mp, s);
+		}
+	}
+	else {
+		/*
+		 * If the file system is not being shutdown, we are in
+		 * serious trouble if we get to this stage.
+		 */
+		if (XFS_FORCED_SHUTDOWN(mp))
+			AIL_UNLOCK(mp, s);
+		else {
+			xfs_cmn_err(XFS_PTAG_AILDELETE, CE_ALERT, mp,
+				"xfs_trans_delete_ail: attempting to delete a log item that is not in the AIL");
+			xfs_force_shutdown(mp, XFS_CORRUPT_INCORE);
+			AIL_UNLOCK(mp, s);
+		}
+	}
+}
+
+
+
+/*
+ * Return the item in the AIL with the smallest lsn.
+ * Return the current tree generation number for use
+ * in calls to xfs_trans_next_ail().
+ */
+xfs_log_item_t *
+xfs_trans_first_ail(
+	xfs_mount_t	*mp,
+	int		*gen)
+{
+	xfs_log_item_t	*lip;
+
+	lip = xfs_ail_min(&(mp->m_ail));
+	*gen = (int)mp->m_ail_gen;
+
+	return (lip);
+}
+
+/*
+ * If the generation count of the tree has not changed since the
+ * caller last took something from the AIL, then return the elmt
+ * in the tree which follows the one given.  If the count has changed,
+ * then return the minimum elmt of the AIL and bump the restarts counter
+ * if one is given.
+ */
+xfs_log_item_t *
+xfs_trans_next_ail(
+	xfs_mount_t	*mp,
+	xfs_log_item_t	*lip,
+	int		*gen,
+	int		*restarts)
+{
+	xfs_log_item_t	*nlip;
+
+	ASSERT(mp && lip && gen);
+	if (mp->m_ail_gen == *gen) {
+		nlip = xfs_ail_next(&(mp->m_ail), lip);
+	} else {
+		nlip = xfs_ail_min(&(mp->m_ail));
+		*gen = (int)mp->m_ail_gen;
+		if (restarts != NULL) {
+			XFS_STATS_INC(xs_push_ail_restarts);
+			(*restarts)++;
+		}
+	}
+
+	return (nlip);
+}
+
+
+/*
+ * The active item list (AIL) is a doubly linked list of log
+ * items sorted by ascending lsn.  The base of the list is
+ * a forw/back pointer pair embedded in the xfs mount structure.
+ * The base is initialized with both pointers pointing to the
+ * base.  This case always needs to be distinguished, because
+ * the base has no lsn to look at.  We almost always insert
+ * at the end of the list, so on inserts we search from the
+ * end of the list to find where the new item belongs.
+ */
+
+/*
+ * Initialize the doubly linked list to point only to itself.
+ */
+void
+xfs_trans_ail_init(
+	xfs_mount_t	*mp)
+{
+	mp->m_ail.ail_forw = (xfs_log_item_t*)&(mp->m_ail);
+	mp->m_ail.ail_back = (xfs_log_item_t*)&(mp->m_ail);
+}
+
+/*
+ * Insert the given log item into the AIL.
+ * We almost always insert at the end of the list, so on inserts
+ * we search from the end of the list to find where the
+ * new item belongs.
+ */
+STATIC void
+xfs_ail_insert(
+	xfs_ail_entry_t	*base,
+	xfs_log_item_t	*lip)
+/* ARGSUSED */
+{
+	xfs_log_item_t	*next_lip;
+
+	/*
+	 * If the list is empty, just insert the item.
+	 */
+	if (base->ail_back == (xfs_log_item_t*)base) {
+		base->ail_forw = lip;
+		base->ail_back = lip;
+		lip->li_ail.ail_forw = (xfs_log_item_t*)base;
+		lip->li_ail.ail_back = (xfs_log_item_t*)base;
+		return;
+	}
+
+	next_lip = base->ail_back;
+	while ((next_lip != (xfs_log_item_t*)base) &&
+	       (XFS_LSN_CMP(next_lip->li_lsn, lip->li_lsn) > 0)) {
+		next_lip = next_lip->li_ail.ail_back;
+	}
+	ASSERT((next_lip == (xfs_log_item_t*)base) ||
+	       (XFS_LSN_CMP(next_lip->li_lsn, lip->li_lsn) <= 0));
+	lip->li_ail.ail_forw = next_lip->li_ail.ail_forw;
+	lip->li_ail.ail_back = next_lip;
+	next_lip->li_ail.ail_forw = lip;
+	lip->li_ail.ail_forw->li_ail.ail_back = lip;
+
+	xfs_ail_check(base);
+	return;
+}
+
+/*
+ * Delete the given item from the AIL.  Return a pointer to the item.
+ */
+/*ARGSUSED*/
+STATIC xfs_log_item_t *
+xfs_ail_delete(
+	xfs_ail_entry_t	*base,
+	xfs_log_item_t	*lip)
+/* ARGSUSED */
+{
+	lip->li_ail.ail_forw->li_ail.ail_back = lip->li_ail.ail_back;
+	lip->li_ail.ail_back->li_ail.ail_forw = lip->li_ail.ail_forw;
+	lip->li_ail.ail_forw = NULL;
+	lip->li_ail.ail_back = NULL;
+
+	xfs_ail_check(base);
+	return lip;
+}
+
+/*
+ * Return a pointer to the first item in the AIL.
+ * If the AIL is empty, then return NULL.
+ */
+STATIC xfs_log_item_t *
+xfs_ail_min(
+	xfs_ail_entry_t	*base)
+/* ARGSUSED */
+{
+	register xfs_log_item_t *forw = base->ail_forw;
+	if (forw == (xfs_log_item_t*)base) {
+		return NULL;
+	}
+	return forw;
+}
+
+/*
+ * Return a pointer to the item which follows
+ * the given item in the AIL.  If the given item
+ * is the last item in the list, then return NULL.
+ */
+STATIC xfs_log_item_t *
+xfs_ail_next(
+	xfs_ail_entry_t	*base,
+	xfs_log_item_t	*lip)
+/* ARGSUSED */
+{
+	if (lip->li_ail.ail_forw == (xfs_log_item_t*)base) {
+		return NULL;
+	}
+	return lip->li_ail.ail_forw;
+
+}
+
+#ifdef DEBUG
+/*
+ * Check that the list is sorted as it should be.
+ */
+STATIC void
+xfs_ail_check(
+	xfs_ail_entry_t *base)
+{
+	xfs_log_item_t	*lip;
+	xfs_log_item_t	*prev_lip;
+
+	lip = base->ail_forw;
+	if (lip == (xfs_log_item_t*)base) {
+		/*
+		 * Make sure the pointers are correct when the list
+		 * is empty.
+		 */
+		ASSERT(base->ail_back == (xfs_log_item_t*)base);
+		return;
+	}
+
+	/*
+	 * Walk the list checking forward and backward pointers,
+	 * lsn ordering, and that every entry has the XFS_LI_IN_AIL
+	 * flag set.
+	 */
+	prev_lip = (xfs_log_item_t*)base;
+	while (lip != (xfs_log_item_t*)base) {
+		if (prev_lip != (xfs_log_item_t*)base) {
+			ASSERT(prev_lip->li_ail.ail_forw == lip);
+			ASSERT(XFS_LSN_CMP(prev_lip->li_lsn, lip->li_lsn) <= 0);
+		}
+		ASSERT(lip->li_ail.ail_back == prev_lip);
+		ASSERT((lip->li_flags & XFS_LI_IN_AIL) != 0);
+		prev_lip = lip;
+		lip = lip->li_ail.ail_forw;
+	}
+	ASSERT(lip == (xfs_log_item_t*)base);
+	ASSERT(base->ail_back == prev_lip);
+}
+#endif /* DEBUG */
diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c
new file mode 100644
index 00000000000000..a9682b9510c1dd
--- /dev/null
+++ b/fs/xfs/xfs_trans_buf.c
@@ -0,0 +1,1093 @@
+/*
+ * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_buf_item.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_trans_priv.h"
+#include "xfs_error.h"
+#include "xfs_rw.h"
+
+
+STATIC xfs_buf_t *xfs_trans_buf_item_match(xfs_trans_t *, xfs_buftarg_t *,
+		xfs_daddr_t, int);
+STATIC xfs_buf_t *xfs_trans_buf_item_match_all(xfs_trans_t *, xfs_buftarg_t *,
+		xfs_daddr_t, int);
+
+
+/*
+ * Get and lock the buffer for the caller if it is not already
+ * locked within the given transaction.  If it is already locked
+ * within the transaction, just increment its lock recursion count
+ * and return a pointer to it.
+ *
+ * Use the fast path function xfs_trans_buf_item_match() or the buffer
+ * cache routine incore_match() to find the buffer
+ * if it is already owned by this transaction.
+ *
+ * If we don't already own the buffer, use get_buf() to get it.
+ * If it doesn't yet have an associated xfs_buf_log_item structure,
+ * then allocate one and add the item to this transaction.
+ *
+ * If the transaction pointer is NULL, make this just a normal
+ * get_buf() call.
+ */
+xfs_buf_t *
+xfs_trans_get_buf(xfs_trans_t	*tp,
+		  xfs_buftarg_t	*target_dev,
+		  xfs_daddr_t	blkno,
+		  int		len,
+		  uint		flags)
+{
+	xfs_buf_t		*bp;
+	xfs_buf_log_item_t	*bip;
+
+	if (flags == 0)
+		flags = XFS_BUF_LOCK | XFS_BUF_MAPPED;
+
+	/*
+	 * Default to a normal get_buf() call if the tp is NULL.
+	 */
+	if (tp == NULL) {
+		bp = xfs_buf_get_flags(target_dev, blkno, len,
+							flags | BUF_BUSY);
+		return(bp);
+	}
+
+	/*
+	 * If we find the buffer in the cache with this transaction
+	 * pointer in its b_fsprivate2 field, then we know we already
+	 * have it locked.  In this case we just increment the lock
+	 * recursion count and return the buffer to the caller.
+	 */
+	if (tp->t_items.lic_next == NULL) {
+		bp = xfs_trans_buf_item_match(tp, target_dev, blkno, len);
+	} else {
+		bp  = xfs_trans_buf_item_match_all(tp, target_dev, blkno, len);
+	}
+	if (bp != NULL) {
+		ASSERT(XFS_BUF_VALUSEMA(bp) <= 0);
+		if (XFS_FORCED_SHUTDOWN(tp->t_mountp)) {
+			xfs_buftrace("TRANS GET RECUR SHUT", bp);
+			XFS_BUF_SUPER_STALE(bp);
+		}
+		/*
+		 * If the buffer is stale then it was binval'ed
+		 * since last read.  This doesn't matter since the
+		 * caller isn't allowed to use the data anyway.
+		 */
+		else if (XFS_BUF_ISSTALE(bp)) {
+			xfs_buftrace("TRANS GET RECUR STALE", bp);
+			ASSERT(!XFS_BUF_ISDELAYWRITE(bp));
+		}
+		ASSERT(XFS_BUF_FSPRIVATE2(bp, xfs_trans_t *) == tp);
+		bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *);
+		ASSERT(bip != NULL);
+		ASSERT(atomic_read(&bip->bli_refcount) > 0);
+		bip->bli_recur++;
+		xfs_buftrace("TRANS GET RECUR", bp);
+		xfs_buf_item_trace("GET RECUR", bip);
+		return (bp);
+	}
+
+	/*
+	 * We always specify the BUF_BUSY flag within a transaction so
+	 * that get_buf does not try to push out a delayed write buffer
+	 * which might cause another transaction to take place (if the
+	 * buffer was delayed alloc).  Such recursive transactions can
+	 * easily deadlock with our current transaction as well as cause
+	 * us to run out of stack space.
+	 */
+	bp = xfs_buf_get_flags(target_dev, blkno, len, flags | BUF_BUSY);
+	if (bp == NULL) {
+		return NULL;
+	}
+
+	ASSERT(!XFS_BUF_GETERROR(bp));
+
+	/*
+	 * The xfs_buf_log_item pointer is stored in b_fsprivate.  If
+	 * it doesn't have one yet, then allocate one and initialize it.
+	 * The checks to see if one is there are in xfs_buf_item_init().
+	 */
+	xfs_buf_item_init(bp, tp->t_mountp);
+
+	/*
+	 * Set the recursion count for the buffer within this transaction
+	 * to 0.
+	 */
+	bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t*);
+	ASSERT(!(bip->bli_flags & XFS_BLI_STALE));
+	ASSERT(!(bip->bli_format.blf_flags & XFS_BLI_CANCEL));
+	ASSERT(!(bip->bli_flags & XFS_BLI_LOGGED));
+	bip->bli_recur = 0;
+
+	/*
+	 * Take a reference for this transaction on the buf item.
+	 */
+	atomic_inc(&bip->bli_refcount);
+
+	/*
+	 * Get a log_item_desc to point at the new item.
+	 */
+	(void) xfs_trans_add_item(tp, (xfs_log_item_t*)bip);
+
+	/*
+	 * Initialize b_fsprivate2 so we can find it with incore_match()
+	 * above.
+	 */
+	XFS_BUF_SET_FSPRIVATE2(bp, tp);
+
+	xfs_buftrace("TRANS GET", bp);
+	xfs_buf_item_trace("GET", bip);
+	return (bp);
+}
+
+/*
+ * Get and lock the superblock buffer of this file system for the
+ * given transaction.
+ *
+ * We don't need to use incore_match() here, because the superblock
+ * buffer is a private buffer which we keep a pointer to in the
+ * mount structure.
+ */
+xfs_buf_t *
+xfs_trans_getsb(xfs_trans_t	*tp,
+		struct xfs_mount *mp,
+		int		flags)
+{
+	xfs_buf_t		*bp;
+	xfs_buf_log_item_t	*bip;
+
+	/*
+	 * Default to just trying to lock the superblock buffer
+	 * if tp is NULL.
+	 */
+	if (tp == NULL) {
+		return (xfs_getsb(mp, flags));
+	}
+
+	/*
+	 * If the superblock buffer already has this transaction
+	 * pointer in its b_fsprivate2 field, then we know we already
+	 * have it locked.  In this case we just increment the lock
+	 * recursion count and return the buffer to the caller.
+	 */
+	bp = mp->m_sb_bp;
+	if (XFS_BUF_FSPRIVATE2(bp, xfs_trans_t *) == tp) {
+		bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t*);
+		ASSERT(bip != NULL);
+		ASSERT(atomic_read(&bip->bli_refcount) > 0);
+		bip->bli_recur++;
+		xfs_buf_item_trace("GETSB RECUR", bip);
+		return (bp);
+	}
+
+	bp = xfs_getsb(mp, flags);
+	if (bp == NULL) {
+		return NULL;
+	}
+
+	/*
+	 * The xfs_buf_log_item pointer is stored in b_fsprivate.  If
+	 * it doesn't have one yet, then allocate one and initialize it.
+	 * The checks to see if one is there are in xfs_buf_item_init().
+	 */
+	xfs_buf_item_init(bp, mp);
+
+	/*
+	 * Set the recursion count for the buffer within this transaction
+	 * to 0.
+	 */
+	bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t*);
+	ASSERT(!(bip->bli_flags & XFS_BLI_STALE));
+	ASSERT(!(bip->bli_format.blf_flags & XFS_BLI_CANCEL));
+	ASSERT(!(bip->bli_flags & XFS_BLI_LOGGED));
+	bip->bli_recur = 0;
+
+	/*
+	 * Take a reference for this transaction on the buf item.
+	 */
+	atomic_inc(&bip->bli_refcount);
+
+	/*
+	 * Get a log_item_desc to point at the new item.
+	 */
+	(void) xfs_trans_add_item(tp, (xfs_log_item_t*)bip);
+
+	/*
+	 * Initialize b_fsprivate2 so we can find it with incore_match()
+	 * above.
+	 */
+	XFS_BUF_SET_FSPRIVATE2(bp, tp);
+
+	xfs_buf_item_trace("GETSB", bip);
+	return (bp);
+}
+
+#ifdef DEBUG
+xfs_buftarg_t *xfs_error_target;
+int	xfs_do_error;
+int	xfs_req_num;
+int	xfs_error_mod = 33;
+#endif
+
+/*
+ * Get and lock the buffer for the caller if it is not already
+ * locked within the given transaction.  If it has not yet been
+ * read in, read it from disk. If it is already locked
+ * within the transaction and already read in, just increment its
+ * lock recursion count and return a pointer to it.
+ *
+ * Use the fast path function xfs_trans_buf_item_match() or the buffer
+ * cache routine incore_match() to find the buffer
+ * if it is already owned by this transaction.
+ *
+ * If we don't already own the buffer, use read_buf() to get it.
+ * If it doesn't yet have an associated xfs_buf_log_item structure,
+ * then allocate one and add the item to this transaction.
+ *
+ * If the transaction pointer is NULL, make this just a normal
+ * read_buf() call.
+ */
+int
+xfs_trans_read_buf(
+	xfs_mount_t	*mp,
+	xfs_trans_t	*tp,
+	xfs_buftarg_t	*target,
+	xfs_daddr_t	blkno,
+	int		len,
+	uint		flags,
+	xfs_buf_t	**bpp)
+{
+	xfs_buf_t		*bp;
+	xfs_buf_log_item_t	*bip;
+	int			error;
+
+	if (flags == 0)
+		flags = XFS_BUF_LOCK | XFS_BUF_MAPPED;
+
+	/*
+	 * Default to a normal get_buf() call if the tp is NULL.
+	 */
+	if (tp == NULL) {
+		bp = xfs_buf_read_flags(target, blkno, len, flags | BUF_BUSY);
+		if (!bp)
+			return XFS_ERROR(ENOMEM);
+
+		if ((bp != NULL) && (XFS_BUF_GETERROR(bp) != 0)) {
+			xfs_ioerror_alert("xfs_trans_read_buf", mp,
+					  bp, blkno);
+			error = XFS_BUF_GETERROR(bp);
+			xfs_buf_relse(bp);
+			return error;
+		}
+#ifdef DEBUG
+		if (xfs_do_error && (bp != NULL)) {
+			if (xfs_error_target == target) {
+				if (((xfs_req_num++) % xfs_error_mod) == 0) {
+					xfs_buf_relse(bp);
+					printk("Returning error!\n");
+					return XFS_ERROR(EIO);
+				}
+			}
+		}
+#endif
+		if (XFS_FORCED_SHUTDOWN(mp))
+			goto shutdown_abort;
+		*bpp = bp;
+		return 0;
+	}
+
+	/*
+	 * If we find the buffer in the cache with this transaction
+	 * pointer in its b_fsprivate2 field, then we know we already
+	 * have it locked.  If it is already read in we just increment
+	 * the lock recursion count and return the buffer to the caller.
+	 * If the buffer is not yet read in, then we read it in, increment
+	 * the lock recursion count, and return it to the caller.
+	 */
+	if (tp->t_items.lic_next == NULL) {
+		bp = xfs_trans_buf_item_match(tp, target, blkno, len);
+	} else {
+		bp = xfs_trans_buf_item_match_all(tp, target, blkno, len);
+	}
+	if (bp != NULL) {
+		ASSERT(XFS_BUF_VALUSEMA(bp) <= 0);
+		ASSERT(XFS_BUF_FSPRIVATE2(bp, xfs_trans_t *) == tp);
+		ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
+		ASSERT((XFS_BUF_ISERROR(bp)) == 0);
+		if (!(XFS_BUF_ISDONE(bp))) {
+			xfs_buftrace("READ_BUF_INCORE !DONE", bp);
+			ASSERT(!XFS_BUF_ISASYNC(bp));
+			XFS_BUF_READ(bp);
+			xfsbdstrat(tp->t_mountp, bp);
+			xfs_iowait(bp);
+			if (XFS_BUF_GETERROR(bp) != 0) {
+				xfs_ioerror_alert("xfs_trans_read_buf", mp,
+						  bp, blkno);
+				error = XFS_BUF_GETERROR(bp);
+				xfs_buf_relse(bp);
+				/*
+				 * We can gracefully recover from most
+				 * read errors. Ones we can't are those
+				 * that happen after the transaction's
+				 * already dirty.
+				 */
+				if (tp->t_flags & XFS_TRANS_DIRTY)
+					xfs_force_shutdown(tp->t_mountp,
+							   XFS_METADATA_IO_ERROR);
+				return error;
+			}
+		}
+		/*
+		 * We never locked this buf ourselves, so we shouldn't
+		 * brelse it either. Just get out.
+		 */
+		if (XFS_FORCED_SHUTDOWN(mp)) {
+			xfs_buftrace("READ_BUF_INCORE XFSSHUTDN", bp);
+			*bpp = NULL;
+			return XFS_ERROR(EIO);
+		}
+
+
+		bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t*);
+		bip->bli_recur++;
+
+		ASSERT(atomic_read(&bip->bli_refcount) > 0);
+		xfs_buf_item_trace("READ RECUR", bip);
+		*bpp = bp;
+		return 0;
+	}
+
+	/*
+	 * We always specify the BUF_BUSY flag within a transaction so
+	 * that get_buf does not try to push out a delayed write buffer
+	 * which might cause another transaction to take place (if the
+	 * buffer was delayed alloc).  Such recursive transactions can
+	 * easily deadlock with our current transaction as well as cause
+	 * us to run out of stack space.
+	 */
+	bp = xfs_buf_read_flags(target, blkno, len, flags | BUF_BUSY);
+	if (bp == NULL) {
+		*bpp = NULL;
+		return 0;
+	}
+	if (XFS_BUF_GETERROR(bp) != 0) {
+	    XFS_BUF_SUPER_STALE(bp);
+		xfs_buftrace("READ ERROR", bp);
+		error = XFS_BUF_GETERROR(bp);
+
+		xfs_ioerror_alert("xfs_trans_read_buf", mp,
+				  bp, blkno);
+		if (tp->t_flags & XFS_TRANS_DIRTY)
+			xfs_force_shutdown(tp->t_mountp, XFS_METADATA_IO_ERROR);
+		xfs_buf_relse(bp);
+		return error;
+	}
+#ifdef DEBUG
+	if (xfs_do_error && !(tp->t_flags & XFS_TRANS_DIRTY)) {
+		if (xfs_error_target == target) {
+			if (((xfs_req_num++) % xfs_error_mod) == 0) {
+				xfs_force_shutdown(tp->t_mountp,
+						   XFS_METADATA_IO_ERROR);
+				xfs_buf_relse(bp);
+				printk("Returning error in trans!\n");
+				return XFS_ERROR(EIO);
+			}
+		}
+	}
+#endif
+	if (XFS_FORCED_SHUTDOWN(mp))
+		goto shutdown_abort;
+
+	/*
+	 * The xfs_buf_log_item pointer is stored in b_fsprivate.  If
+	 * it doesn't have one yet, then allocate one and initialize it.
+	 * The checks to see if one is there are in xfs_buf_item_init().
+	 */
+	xfs_buf_item_init(bp, tp->t_mountp);
+
+	/*
+	 * Set the recursion count for the buffer within this transaction
+	 * to 0.
+	 */
+	bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t*);
+	ASSERT(!(bip->bli_flags & XFS_BLI_STALE));
+	ASSERT(!(bip->bli_format.blf_flags & XFS_BLI_CANCEL));
+	ASSERT(!(bip->bli_flags & XFS_BLI_LOGGED));
+	bip->bli_recur = 0;
+
+	/*
+	 * Take a reference for this transaction on the buf item.
+	 */
+	atomic_inc(&bip->bli_refcount);
+
+	/*
+	 * Get a log_item_desc to point at the new item.
+	 */
+	(void) xfs_trans_add_item(tp, (xfs_log_item_t*)bip);
+
+	/*
+	 * Initialize b_fsprivate2 so we can find it with incore_match()
+	 * above.
+	 */
+	XFS_BUF_SET_FSPRIVATE2(bp, tp);
+
+	xfs_buftrace("TRANS READ", bp);
+	xfs_buf_item_trace("READ", bip);
+	*bpp = bp;
+	return 0;
+
+shutdown_abort:
+	/*
+	 * the theory here is that buffer is good but we're
+	 * bailing out because the filesystem is being forcibly
+	 * shut down.  So we should leave the b_flags alone since
+	 * the buffer's not staled and just get out.
+	 */
+#if defined(DEBUG)
+	if (XFS_BUF_ISSTALE(bp) && XFS_BUF_ISDELAYWRITE(bp))
+		cmn_err(CE_NOTE, "about to pop assert, bp == 0x%p", bp);
+#endif
+	ASSERT((XFS_BUF_BFLAGS(bp) & (XFS_B_STALE|XFS_B_DELWRI)) !=
+						(XFS_B_STALE|XFS_B_DELWRI));
+
+	xfs_buftrace("READ_BUF XFSSHUTDN", bp);
+	xfs_buf_relse(bp);
+	*bpp = NULL;
+	return XFS_ERROR(EIO);
+}
+
+
+/*
+ * Release the buffer bp which was previously acquired with one of the
+ * xfs_trans_... buffer allocation routines if the buffer has not
+ * been modified within this transaction.  If the buffer is modified
+ * within this transaction, do decrement the recursion count but do
+ * not release the buffer even if the count goes to 0.  If the buffer is not
+ * modified within the transaction, decrement the recursion count and
+ * release the buffer if the recursion count goes to 0.
+ *
+ * If the buffer is to be released and it was not modified before
+ * this transaction began, then free the buf_log_item associated with it.
+ *
+ * If the transaction pointer is NULL, make this just a normal
+ * brelse() call.
+ */
+void
+xfs_trans_brelse(xfs_trans_t	*tp,
+		 xfs_buf_t	*bp)
+{
+	xfs_buf_log_item_t	*bip;
+	xfs_log_item_t		*lip;
+	xfs_log_item_desc_t	*lidp;
+
+	/*
+	 * Default to a normal brelse() call if the tp is NULL.
+	 */
+	if (tp == NULL) {
+		ASSERT(XFS_BUF_FSPRIVATE2(bp, void *) == NULL);
+		/*
+		 * If there's a buf log item attached to the buffer,
+		 * then let the AIL know that the buffer is being
+		 * unlocked.
+		 */
+		if (XFS_BUF_FSPRIVATE(bp, void *) != NULL) {
+			lip = XFS_BUF_FSPRIVATE(bp, xfs_log_item_t *);
+			if (lip->li_type == XFS_LI_BUF) {
+				bip = XFS_BUF_FSPRIVATE(bp,xfs_buf_log_item_t*);
+				xfs_trans_unlocked_item(
+						bip->bli_item.li_mountp,
+						lip);
+			}
+		}
+		xfs_buf_relse(bp);
+		return;
+	}
+
+	ASSERT(XFS_BUF_FSPRIVATE2(bp, xfs_trans_t *) == tp);
+	bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *);
+	ASSERT(bip->bli_item.li_type == XFS_LI_BUF);
+	ASSERT(!(bip->bli_flags & XFS_BLI_STALE));
+	ASSERT(!(bip->bli_format.blf_flags & XFS_BLI_CANCEL));
+	ASSERT(atomic_read(&bip->bli_refcount) > 0);
+
+	/*
+	 * Find the item descriptor pointing to this buffer's
+	 * log item.  It must be there.
+	 */
+	lidp = xfs_trans_find_item(tp, (xfs_log_item_t*)bip);
+	ASSERT(lidp != NULL);
+
+	/*
+	 * If the release is just for a recursive lock,
+	 * then decrement the count and return.
+	 */
+	if (bip->bli_recur > 0) {
+		bip->bli_recur--;
+		xfs_buf_item_trace("RELSE RECUR", bip);
+		return;
+	}
+
+	/*
+	 * If the buffer is dirty within this transaction, we can't
+	 * release it until we commit.
+	 */
+	if (lidp->lid_flags & XFS_LID_DIRTY) {
+		xfs_buf_item_trace("RELSE DIRTY", bip);
+		return;
+	}
+
+	/*
+	 * If the buffer has been invalidated, then we can't release
+	 * it until the transaction commits to disk unless it is re-dirtied
+	 * as part of this transaction.  This prevents us from pulling
+	 * the item from the AIL before we should.
+	 */
+	if (bip->bli_flags & XFS_BLI_STALE) {
+		xfs_buf_item_trace("RELSE STALE", bip);
+		return;
+	}
+
+	ASSERT(!(bip->bli_flags & XFS_BLI_LOGGED));
+	xfs_buf_item_trace("RELSE", bip);
+
+	/*
+	 * Free up the log item descriptor tracking the released item.
+	 */
+	xfs_trans_free_item(tp, lidp);
+
+	/*
+	 * Clear the hold flag in the buf log item if it is set.
+	 * We wouldn't want the next user of the buffer to
+	 * get confused.
+	 */
+	if (bip->bli_flags & XFS_BLI_HOLD) {
+		bip->bli_flags &= ~XFS_BLI_HOLD;
+	}
+
+	/*
+	 * Drop our reference to the buf log item.
+	 */
+	atomic_dec(&bip->bli_refcount);
+
+	/*
+	 * If the buf item is not tracking data in the log, then
+	 * we must free it before releasing the buffer back to the
+	 * free pool.  Before releasing the buffer to the free pool,
+	 * clear the transaction pointer in b_fsprivate2 to dissolve
+	 * its relation to this transaction.
+	 */
+	if (!xfs_buf_item_dirty(bip)) {
+/***
+		ASSERT(bp->b_pincount == 0);
+***/
+		ASSERT(atomic_read(&bip->bli_refcount) == 0);
+		ASSERT(!(bip->bli_item.li_flags & XFS_LI_IN_AIL));
+		ASSERT(!(bip->bli_flags & XFS_BLI_INODE_ALLOC_BUF));
+		xfs_buf_item_relse(bp);
+		bip = NULL;
+	}
+	XFS_BUF_SET_FSPRIVATE2(bp, NULL);
+
+	/*
+	 * If we've still got a buf log item on the buffer, then
+	 * tell the AIL that the buffer is being unlocked.
+	 */
+	if (bip != NULL) {
+		xfs_trans_unlocked_item(bip->bli_item.li_mountp,
+					(xfs_log_item_t*)bip);
+	}
+
+	xfs_buf_relse(bp);
+	return;
+}
+
+/*
+ * Add the locked buffer to the transaction.
+ * The buffer must be locked, and it cannot be associated with any
+ * transaction.
+ *
+ * If the buffer does not yet have a buf log item associated with it,
+ * then allocate one for it.  Then add the buf item to the transaction.
+ */
+void
+xfs_trans_bjoin(xfs_trans_t	*tp,
+		xfs_buf_t	*bp)
+{
+	xfs_buf_log_item_t	*bip;
+
+	ASSERT(XFS_BUF_ISBUSY(bp));
+	ASSERT(XFS_BUF_FSPRIVATE2(bp, void *) == NULL);
+
+	/*
+	 * The xfs_buf_log_item pointer is stored in b_fsprivate.  If
+	 * it doesn't have one yet, then allocate one and initialize it.
+	 * The checks to see if one is there are in xfs_buf_item_init().
+	 */
+	xfs_buf_item_init(bp, tp->t_mountp);
+	bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *);
+	ASSERT(!(bip->bli_flags & XFS_BLI_STALE));
+	ASSERT(!(bip->bli_format.blf_flags & XFS_BLI_CANCEL));
+	ASSERT(!(bip->bli_flags & XFS_BLI_LOGGED));
+
+	/*
+	 * Take a reference for this transaction on the buf item.
+	 */
+	atomic_inc(&bip->bli_refcount);
+
+	/*
+	 * Get a log_item_desc to point at the new item.
+	 */
+	(void) xfs_trans_add_item(tp, (xfs_log_item_t *)bip);
+
+	/*
+	 * Initialize b_fsprivate2 so we can find it with incore_match()
+	 * in xfs_trans_get_buf() and friends above.
+	 */
+	XFS_BUF_SET_FSPRIVATE2(bp, tp);
+
+	xfs_buf_item_trace("BJOIN", bip);
+}
+
+/*
+ * Mark the buffer as not needing to be unlocked when the buf item's
+ * IOP_UNLOCK() routine is called.  The buffer must already be locked
+ * and associated with the given transaction.
+ */
+/* ARGSUSED */
+void
+xfs_trans_bhold(xfs_trans_t	*tp,
+		xfs_buf_t	*bp)
+{
+	xfs_buf_log_item_t	*bip;
+
+	ASSERT(XFS_BUF_ISBUSY(bp));
+	ASSERT(XFS_BUF_FSPRIVATE2(bp, xfs_trans_t *) == tp);
+	ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
+
+	bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *);
+	ASSERT(!(bip->bli_flags & XFS_BLI_STALE));
+	ASSERT(!(bip->bli_format.blf_flags & XFS_BLI_CANCEL));
+	ASSERT(atomic_read(&bip->bli_refcount) > 0);
+	bip->bli_flags |= XFS_BLI_HOLD;
+	xfs_buf_item_trace("BHOLD", bip);
+}
+
+/*
+ * This is called to mark bytes first through last inclusive of the given
+ * buffer as needing to be logged when the transaction is committed.
+ * The buffer must already be associated with the given transaction.
+ *
+ * First and last are numbers relative to the beginning of this buffer,
+ * so the first byte in the buffer is numbered 0 regardless of the
+ * value of b_blkno.
+ */
+void
+xfs_trans_log_buf(xfs_trans_t	*tp,
+		  xfs_buf_t	*bp,
+		  uint		first,
+		  uint		last)
+{
+	xfs_buf_log_item_t	*bip;
+	xfs_log_item_desc_t	*lidp;
+
+	ASSERT(XFS_BUF_ISBUSY(bp));
+	ASSERT(XFS_BUF_FSPRIVATE2(bp, xfs_trans_t *) == tp);
+	ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
+	ASSERT((first <= last) && (last < XFS_BUF_COUNT(bp)));
+	ASSERT((XFS_BUF_IODONE_FUNC(bp) == NULL) ||
+	       (XFS_BUF_IODONE_FUNC(bp) == xfs_buf_iodone_callbacks));
+
+	/*
+	 * Mark the buffer as needing to be written out eventually,
+	 * and set its iodone function to remove the buffer's buf log
+	 * item from the AIL and free it when the buffer is flushed
+	 * to disk.  See xfs_buf_attach_iodone() for more details
+	 * on li_cb and xfs_buf_iodone_callbacks().
+	 * If we end up aborting this transaction, we trap this buffer
+	 * inside the b_bdstrat callback so that this won't get written to
+	 * disk.
+	 */
+	XFS_BUF_DELAYWRITE(bp);
+	XFS_BUF_DONE(bp);
+
+	bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *);
+	ASSERT(atomic_read(&bip->bli_refcount) > 0);
+	XFS_BUF_SET_IODONE_FUNC(bp, xfs_buf_iodone_callbacks);
+	bip->bli_item.li_cb = (void(*)(xfs_buf_t*,xfs_log_item_t*))xfs_buf_iodone;
+
+	/*
+	 * If we invalidated the buffer within this transaction, then
+	 * cancel the invalidation now that we're dirtying the buffer
+	 * again.  There are no races with the code in xfs_buf_item_unpin(),
+	 * because we have a reference to the buffer this entire time.
+	 */
+	if (bip->bli_flags & XFS_BLI_STALE) {
+		xfs_buf_item_trace("BLOG UNSTALE", bip);
+		bip->bli_flags &= ~XFS_BLI_STALE;
+		ASSERT(XFS_BUF_ISSTALE(bp));
+		XFS_BUF_UNSTALE(bp);
+		bip->bli_format.blf_flags &= ~XFS_BLI_CANCEL;
+	}
+
+	lidp = xfs_trans_find_item(tp, (xfs_log_item_t*)bip);
+	ASSERT(lidp != NULL);
+
+	tp->t_flags |= XFS_TRANS_DIRTY;
+	lidp->lid_flags |= XFS_LID_DIRTY;
+	lidp->lid_flags &= ~XFS_LID_BUF_STALE;
+	bip->bli_flags |= XFS_BLI_LOGGED;
+	xfs_buf_item_log(bip, first, last);
+	xfs_buf_item_trace("BLOG", bip);
+}
+
+
+/*
+ * This called to invalidate a buffer that is being used within
+ * a transaction.  Typically this is because the blocks in the
+ * buffer are being freed, so we need to prevent it from being
+ * written out when we're done.  Allowing it to be written again
+ * might overwrite data in the free blocks if they are reallocated
+ * to a file.
+ *
+ * We prevent the buffer from being written out by clearing the
+ * B_DELWRI flag.  We can't always
+ * get rid of the buf log item at this point, though, because
+ * the buffer may still be pinned by another transaction.  If that
+ * is the case, then we'll wait until the buffer is committed to
+ * disk for the last time (we can tell by the ref count) and
+ * free it in xfs_buf_item_unpin().  Until it is cleaned up we
+ * will keep the buffer locked so that the buffer and buf log item
+ * are not reused.
+ */
+void
+xfs_trans_binval(
+	xfs_trans_t	*tp,
+	xfs_buf_t	*bp)
+{
+	xfs_log_item_desc_t	*lidp;
+	xfs_buf_log_item_t	*bip;
+
+	ASSERT(XFS_BUF_ISBUSY(bp));
+	ASSERT(XFS_BUF_FSPRIVATE2(bp, xfs_trans_t *) == tp);
+	ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
+
+	bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *);
+	lidp = xfs_trans_find_item(tp, (xfs_log_item_t*)bip);
+	ASSERT(lidp != NULL);
+	ASSERT(atomic_read(&bip->bli_refcount) > 0);
+
+	if (bip->bli_flags & XFS_BLI_STALE) {
+		/*
+		 * If the buffer is already invalidated, then
+		 * just return.
+		 */
+		ASSERT(!(XFS_BUF_ISDELAYWRITE(bp)));
+		ASSERT(XFS_BUF_ISSTALE(bp));
+		ASSERT(!(bip->bli_flags & (XFS_BLI_LOGGED | XFS_BLI_DIRTY)));
+		ASSERT(!(bip->bli_format.blf_flags & XFS_BLI_INODE_BUF));
+		ASSERT(bip->bli_format.blf_flags & XFS_BLI_CANCEL);
+		ASSERT(lidp->lid_flags & XFS_LID_DIRTY);
+		ASSERT(tp->t_flags & XFS_TRANS_DIRTY);
+		xfs_buftrace("XFS_BINVAL RECUR", bp);
+		xfs_buf_item_trace("BINVAL RECUR", bip);
+		return;
+	}
+
+	/*
+	 * Clear the dirty bit in the buffer and set the STALE flag
+	 * in the buf log item.  The STALE flag will be used in
+	 * xfs_buf_item_unpin() to determine if it should clean up
+	 * when the last reference to the buf item is given up.
+	 * We set the XFS_BLI_CANCEL flag in the buf log format structure
+	 * and log the buf item.  This will be used at recovery time
+	 * to determine that copies of the buffer in the log before
+	 * this should not be replayed.
+	 * We mark the item descriptor and the transaction dirty so
+	 * that we'll hold the buffer until after the commit.
+	 *
+	 * Since we're invalidating the buffer, we also clear the state
+	 * about which parts of the buffer have been logged.  We also
+	 * clear the flag indicating that this is an inode buffer since
+	 * the data in the buffer will no longer be valid.
+	 *
+	 * We set the stale bit in the buffer as well since we're getting
+	 * rid of it.
+	 */
+	XFS_BUF_UNDELAYWRITE(bp);
+	XFS_BUF_STALE(bp);
+	bip->bli_flags |= XFS_BLI_STALE;
+	bip->bli_flags &= ~(XFS_BLI_LOGGED | XFS_BLI_DIRTY);
+	bip->bli_format.blf_flags &= ~XFS_BLI_INODE_BUF;
+	bip->bli_format.blf_flags |= XFS_BLI_CANCEL;
+	memset((char *)(bip->bli_format.blf_data_map), 0,
+	      (bip->bli_format.blf_map_size * sizeof(uint)));
+	lidp->lid_flags |= XFS_LID_DIRTY|XFS_LID_BUF_STALE;
+	tp->t_flags |= XFS_TRANS_DIRTY;
+	xfs_buftrace("XFS_BINVAL", bp);
+	xfs_buf_item_trace("BINVAL", bip);
+}
+
+/*
+ * This call is used to indicate that the buffer contains on-disk
+ * inodes which must be handled specially during recovery.  They
+ * require special handling because only the di_next_unlinked from
+ * the inodes in the buffer should be recovered.  The rest of the
+ * data in the buffer is logged via the inodes themselves.
+ *
+ * All we do is set the XFS_BLI_INODE_BUF flag in the buffer's log
+ * format structure so that we'll know what to do at recovery time.
+ */
+/* ARGSUSED */
+void
+xfs_trans_inode_buf(
+	xfs_trans_t	*tp,
+	xfs_buf_t	*bp)
+{
+	xfs_buf_log_item_t	*bip;
+
+	ASSERT(XFS_BUF_ISBUSY(bp));
+	ASSERT(XFS_BUF_FSPRIVATE2(bp, xfs_trans_t *) == tp);
+	ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
+
+	bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *);
+	ASSERT(atomic_read(&bip->bli_refcount) > 0);
+
+	bip->bli_format.blf_flags |= XFS_BLI_INODE_BUF;
+}
+
+/*
+ * This call is used to indicate that the buffer is going to
+ * be staled and was an inode buffer. This means it gets
+ * special processing during unpin - where any inodes 
+ * associated with the buffer should be removed from ail.
+ * There is also special processing during recovery,
+ * any replay of the inodes in the buffer needs to be
+ * prevented as the buffer may have been reused.
+ */
+void
+xfs_trans_stale_inode_buf(
+	xfs_trans_t	*tp,
+	xfs_buf_t	*bp)
+{
+	xfs_buf_log_item_t	*bip;
+
+	ASSERT(XFS_BUF_ISBUSY(bp));
+	ASSERT(XFS_BUF_FSPRIVATE2(bp, xfs_trans_t *) == tp);
+	ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
+
+	bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *);
+	ASSERT(atomic_read(&bip->bli_refcount) > 0);
+
+	bip->bli_flags |= XFS_BLI_STALE_INODE;
+	bip->bli_item.li_cb = (void(*)(xfs_buf_t*,xfs_log_item_t*))
+		xfs_buf_iodone;
+}
+
+
+
+/*
+ * Mark the buffer as being one which contains newly allocated
+ * inodes.  We need to make sure that even if this buffer is
+ * relogged as an 'inode buf' we still recover all of the inode
+ * images in the face of a crash.  This works in coordination with
+ * xfs_buf_item_committed() to ensure that the buffer remains in the
+ * AIL at its original location even after it has been relogged.
+ */
+/* ARGSUSED */
+void
+xfs_trans_inode_alloc_buf(
+	xfs_trans_t	*tp,
+	xfs_buf_t	*bp)
+{
+	xfs_buf_log_item_t	*bip;
+
+	ASSERT(XFS_BUF_ISBUSY(bp));
+	ASSERT(XFS_BUF_FSPRIVATE2(bp, xfs_trans_t *) == tp);
+	ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
+
+	bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *);
+	ASSERT(atomic_read(&bip->bli_refcount) > 0);
+
+	bip->bli_flags |= XFS_BLI_INODE_ALLOC_BUF;
+}
+
+
+/*
+ * Similar to xfs_trans_inode_buf(), this marks the buffer as a cluster of
+ * dquots. However, unlike in inode buffer recovery, dquot buffers get
+ * recovered in their entirety. (Hence, no XFS_BLI_DQUOT_ALLOC_BUF flag).
+ * The only thing that makes dquot buffers different from regular
+ * buffers is that we must not replay dquot bufs when recovering
+ * if a _corresponding_ quotaoff has happened. We also have to distinguish
+ * between usr dquot bufs and grp dquot bufs, because usr and grp quotas
+ * can be turned off independently.
+ */
+/* ARGSUSED */
+void
+xfs_trans_dquot_buf(
+	xfs_trans_t	*tp,
+	xfs_buf_t	*bp,
+	uint		type)
+{
+	xfs_buf_log_item_t	*bip;
+
+	ASSERT(XFS_BUF_ISBUSY(bp));
+	ASSERT(XFS_BUF_FSPRIVATE2(bp, xfs_trans_t *) == tp);
+	ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
+	ASSERT(type == XFS_BLI_UDQUOT_BUF ||
+	       type == XFS_BLI_GDQUOT_BUF);
+
+	bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *);
+	ASSERT(atomic_read(&bip->bli_refcount) > 0);
+
+	bip->bli_format.blf_flags |= type;
+}
+
+/*
+ * Check to see if a buffer matching the given parameters is already
+ * a part of the given transaction.  Only check the first, embedded
+ * chunk, since we don't want to spend all day scanning large transactions.
+ */
+STATIC xfs_buf_t *
+xfs_trans_buf_item_match(
+	xfs_trans_t	*tp,
+	xfs_buftarg_t	*target,
+	xfs_daddr_t	blkno,
+	int		len)
+{
+	xfs_log_item_chunk_t	*licp;
+	xfs_log_item_desc_t	*lidp;
+	xfs_buf_log_item_t	*blip;
+	xfs_buf_t		*bp;
+	int			i;
+
+	bp = NULL;
+	len = BBTOB(len);
+	licp = &tp->t_items;
+	if (!XFS_LIC_ARE_ALL_FREE(licp)) {
+		for (i = 0; i < licp->lic_unused; i++) {
+			/*
+			 * Skip unoccupied slots.
+			 */
+			if (XFS_LIC_ISFREE(licp, i)) {
+				continue;
+			}
+
+			lidp = XFS_LIC_SLOT(licp, i);
+			blip = (xfs_buf_log_item_t *)lidp->lid_item;
+			if (blip->bli_item.li_type != XFS_LI_BUF) {
+				continue;
+			}
+
+			bp = blip->bli_buf;
+			if ((XFS_BUF_TARGET(bp) == target) &&
+			    (XFS_BUF_ADDR(bp) == blkno) &&
+			    (XFS_BUF_COUNT(bp) == len)) {
+				/*
+				 * We found it.  Break out and
+				 * return the pointer to the buffer.
+				 */
+				break;
+			} else {
+				bp = NULL;
+			}
+		}
+	}
+	return bp;
+}
+
+/*
+ * Check to see if a buffer matching the given parameters is already
+ * a part of the given transaction.  Check all the chunks, we
+ * want to be thorough.
+ */
+STATIC xfs_buf_t *
+xfs_trans_buf_item_match_all(
+	xfs_trans_t	*tp,
+	xfs_buftarg_t	*target,
+	xfs_daddr_t	blkno,
+	int		len)
+{
+	xfs_log_item_chunk_t	*licp;
+	xfs_log_item_desc_t	*lidp;
+	xfs_buf_log_item_t	*blip;
+	xfs_buf_t		*bp;
+	int			i;
+
+	bp = NULL;
+	len = BBTOB(len);
+	for (licp = &tp->t_items; licp != NULL; licp = licp->lic_next) {
+		if (XFS_LIC_ARE_ALL_FREE(licp)) {
+			ASSERT(licp == &tp->t_items);
+			ASSERT(licp->lic_next == NULL);
+			return NULL;
+		}
+		for (i = 0; i < licp->lic_unused; i++) {
+			/*
+			 * Skip unoccupied slots.
+			 */
+			if (XFS_LIC_ISFREE(licp, i)) {
+				continue;
+			}
+
+			lidp = XFS_LIC_SLOT(licp, i);
+			blip = (xfs_buf_log_item_t *)lidp->lid_item;
+			if (blip->bli_item.li_type != XFS_LI_BUF) {
+				continue;
+			}
+
+			bp = blip->bli_buf;
+			if ((XFS_BUF_TARGET(bp) == target) &&
+			    (XFS_BUF_ADDR(bp) == blkno) &&
+			    (XFS_BUF_COUNT(bp) == len)) {
+				/*
+				 * We found it.  Break out and
+				 * return the pointer to the buffer.
+				 */
+				return bp;
+			}
+		}
+	}
+	return NULL;
+}
diff --git a/fs/xfs/xfs_trans_extfree.c b/fs/xfs/xfs_trans_extfree.c
new file mode 100644
index 00000000000000..93259a15f983d7
--- /dev/null
+++ b/fs/xfs/xfs_trans_extfree.c
@@ -0,0 +1,156 @@
+/*
+ * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_dir.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_trans_priv.h"
+#include "xfs_extfree_item.h"
+
+/*
+ * This routine is called to allocate an "extent free intention"
+ * log item that will hold nextents worth of extents.  The
+ * caller must use all nextents extents, because we are not
+ * flexible about this at all.
+ */
+xfs_efi_log_item_t *
+xfs_trans_get_efi(xfs_trans_t	*tp,
+		  uint		nextents)
+{
+	xfs_efi_log_item_t	*efip;
+
+	ASSERT(tp != NULL);
+	ASSERT(nextents > 0);
+
+	efip = xfs_efi_init(tp->t_mountp, nextents);
+	ASSERT(efip != NULL);
+
+	/*
+	 * Get a log_item_desc to point at the new item.
+	 */
+	(void) xfs_trans_add_item(tp, (xfs_log_item_t*)efip);
+
+	return (efip);
+}
+
+/*
+ * This routine is called to indicate that the described
+ * extent is to be logged as needing to be freed.  It should
+ * be called once for each extent to be freed.
+ */
+void
+xfs_trans_log_efi_extent(xfs_trans_t		*tp,
+			 xfs_efi_log_item_t	*efip,
+			 xfs_fsblock_t		start_block,
+			 xfs_extlen_t		ext_len)
+{
+	xfs_log_item_desc_t	*lidp;
+	uint			next_extent;
+	xfs_extent_t		*extp;
+
+	lidp = xfs_trans_find_item(tp, (xfs_log_item_t*)efip);
+	ASSERT(lidp != NULL);
+
+	tp->t_flags |= XFS_TRANS_DIRTY;
+	lidp->lid_flags |= XFS_LID_DIRTY;
+
+	next_extent = efip->efi_next_extent;
+	ASSERT(next_extent < efip->efi_format.efi_nextents);
+	extp = &(efip->efi_format.efi_extents[next_extent]);
+	extp->ext_start = start_block;
+	extp->ext_len = ext_len;
+	efip->efi_next_extent++;
+}
+
+
+/*
+ * This routine is called to allocate an "extent free done"
+ * log item that will hold nextents worth of extents.  The
+ * caller must use all nextents extents, because we are not
+ * flexible about this at all.
+ */
+xfs_efd_log_item_t *
+xfs_trans_get_efd(xfs_trans_t		*tp,
+		  xfs_efi_log_item_t	*efip,
+		  uint			nextents)
+{
+	xfs_efd_log_item_t	*efdp;
+
+	ASSERT(tp != NULL);
+	ASSERT(nextents > 0);
+
+	efdp = xfs_efd_init(tp->t_mountp, efip, nextents);
+	ASSERT(efdp != NULL);
+
+	/*
+	 * Get a log_item_desc to point at the new item.
+	 */
+	(void) xfs_trans_add_item(tp, (xfs_log_item_t*)efdp);
+
+	return (efdp);
+}
+
+/*
+ * This routine is called to indicate that the described
+ * extent is to be logged as having been freed.  It should
+ * be called once for each extent freed.
+ */
+void
+xfs_trans_log_efd_extent(xfs_trans_t		*tp,
+			 xfs_efd_log_item_t	*efdp,
+			 xfs_fsblock_t		start_block,
+			 xfs_extlen_t		ext_len)
+{
+	xfs_log_item_desc_t	*lidp;
+	uint			next_extent;
+	xfs_extent_t		*extp;
+
+	lidp = xfs_trans_find_item(tp, (xfs_log_item_t*)efdp);
+	ASSERT(lidp != NULL);
+
+	tp->t_flags |= XFS_TRANS_DIRTY;
+	lidp->lid_flags |= XFS_LID_DIRTY;
+
+	next_extent = efdp->efd_next_extent;
+	ASSERT(next_extent < efdp->efd_format.efd_nextents);
+	extp = &(efdp->efd_format.efd_extents[next_extent]);
+	extp->ext_start = start_block;
+	extp->ext_len = ext_len;
+	efdp->efd_next_extent++;
+}
diff --git a/fs/xfs/xfs_trans_inode.c b/fs/xfs/xfs_trans_inode.c
new file mode 100644
index 00000000000000..e2c3706f453de7
--- /dev/null
+++ b/fs/xfs/xfs_trans_inode.c
@@ -0,0 +1,342 @@
+/*
+ * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_trans_priv.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode_item.h"
+#include "xfs_inode.h"
+
+#ifdef XFS_TRANS_DEBUG
+STATIC void
+xfs_trans_inode_broot_debug(
+	xfs_inode_t	*ip);
+#else
+#define	xfs_trans_inode_broot_debug(ip)
+#endif
+
+
+/*
+ * Get and lock the inode for the caller if it is not already
+ * locked within the given transaction.  If it is already locked
+ * within the transaction, just increment its lock recursion count
+ * and return a pointer to it.
+ *
+ * For an inode to be locked in a transaction, the inode lock, as
+ * opposed to the io lock, must be taken exclusively.  This ensures
+ * that the inode can be involved in only 1 transaction at a time.
+ * Lock recursion is handled on the io lock, but only for lock modes
+ * of equal or lesser strength.  That is, you can recur on the io lock
+ * held EXCL with a SHARED request but not vice versa.  Also, if
+ * the inode is already a part of the transaction then you cannot
+ * go from not holding the io lock to having it EXCL or SHARED.
+ *
+ * Use the inode cache routine xfs_inode_incore() to find the inode
+ * if it is already owned by this transaction.
+ *
+ * If we don't already own the inode, use xfs_iget() to get it.
+ * Since the inode log item structure is embedded in the incore
+ * inode structure and is initialized when the inode is brought
+ * into memory, there is nothing to do with it here.
+ *
+ * If the given transaction pointer is NULL, just call xfs_iget().
+ * This simplifies code which must handle both cases.
+ */
+int
+xfs_trans_iget(
+	xfs_mount_t	*mp,
+	xfs_trans_t	*tp,
+	xfs_ino_t	ino,
+	uint		flags,
+	uint		lock_flags,
+	xfs_inode_t	**ipp)
+{
+	int			error;
+	xfs_inode_t		*ip;
+	xfs_inode_log_item_t	*iip;
+
+	/*
+	 * If the transaction pointer is NULL, just call the normal
+	 * xfs_iget().
+	 */
+	if (tp == NULL)
+		return xfs_iget(mp, NULL, ino, flags, lock_flags, ipp, 0);
+
+	/*
+	 * If we find the inode in core with this transaction
+	 * pointer in its i_transp field, then we know we already
+	 * have it locked.  In this case we just increment the lock
+	 * recursion count and return the inode to the caller.
+	 * Assert that the inode is already locked in the mode requested
+	 * by the caller.  We cannot do lock promotions yet, so
+	 * die if someone gets this wrong.
+	 */
+	if ((ip = xfs_inode_incore(tp->t_mountp, ino, tp)) != NULL) {
+		/*
+		 * Make sure that the inode lock is held EXCL and
+		 * that the io lock is never upgraded when the inode
+		 * is already a part of the transaction.
+		 */
+		ASSERT(ip->i_itemp != NULL);
+		ASSERT(lock_flags & XFS_ILOCK_EXCL);
+		ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
+		ASSERT((!(lock_flags & XFS_IOLOCK_EXCL)) ||
+		       ismrlocked(&ip->i_iolock, MR_UPDATE));
+		ASSERT((!(lock_flags & XFS_IOLOCK_EXCL)) ||
+		       (ip->i_itemp->ili_flags & XFS_ILI_IOLOCKED_EXCL));
+		ASSERT((!(lock_flags & XFS_IOLOCK_SHARED)) ||
+		       ismrlocked(&ip->i_iolock, (MR_UPDATE | MR_ACCESS)));
+		ASSERT((!(lock_flags & XFS_IOLOCK_SHARED)) ||
+		       (ip->i_itemp->ili_flags & XFS_ILI_IOLOCKED_ANY));
+
+		if (lock_flags & (XFS_IOLOCK_SHARED | XFS_IOLOCK_EXCL)) {
+			ip->i_itemp->ili_iolock_recur++;
+		}
+		if (lock_flags & XFS_ILOCK_EXCL) {
+			ip->i_itemp->ili_ilock_recur++;
+		}
+		*ipp = ip;
+		return 0;
+	}
+
+	ASSERT(lock_flags & XFS_ILOCK_EXCL);
+	error = xfs_iget(tp->t_mountp, tp, ino, flags, lock_flags, &ip, 0);
+	if (error) {
+		return error;
+	}
+	ASSERT(ip != NULL);
+
+	/*
+	 * Get a log_item_desc to point at the new item.
+	 */
+	if (ip->i_itemp == NULL)
+		xfs_inode_item_init(ip, mp);
+	iip = ip->i_itemp;
+	(void) xfs_trans_add_item(tp, (xfs_log_item_t *)(iip));
+
+	xfs_trans_inode_broot_debug(ip);
+
+	/*
+	 * If the IO lock has been acquired, mark that in
+	 * the inode log item so we'll know to unlock it
+	 * when the transaction commits.
+	 */
+	ASSERT(iip->ili_flags == 0);
+	if (lock_flags & XFS_IOLOCK_EXCL) {
+		iip->ili_flags |= XFS_ILI_IOLOCKED_EXCL;
+	} else if (lock_flags & XFS_IOLOCK_SHARED) {
+		iip->ili_flags |= XFS_ILI_IOLOCKED_SHARED;
+	}
+
+	/*
+	 * Initialize i_transp so we can find it with xfs_inode_incore()
+	 * above.
+	 */
+	ip->i_transp = tp;
+
+	*ipp = ip;
+	return 0;
+}
+
+/*
+ * Add the locked inode to the transaction.
+ * The inode must be locked, and it cannot be associated with any
+ * transaction.  The caller must specify the locks already held
+ * on the inode.
+ */
+void
+xfs_trans_ijoin(
+	xfs_trans_t	*tp,
+	xfs_inode_t	*ip,
+	uint		lock_flags)
+{
+	xfs_inode_log_item_t	*iip;
+
+	ASSERT(ip->i_transp == NULL);
+	ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
+	ASSERT(lock_flags & XFS_ILOCK_EXCL);
+	if (ip->i_itemp == NULL)
+		xfs_inode_item_init(ip, ip->i_mount);
+	iip = ip->i_itemp;
+	ASSERT(iip->ili_flags == 0);
+	ASSERT(iip->ili_ilock_recur == 0);
+	ASSERT(iip->ili_iolock_recur == 0);
+
+	/*
+	 * Get a log_item_desc to point at the new item.
+	 */
+	(void) xfs_trans_add_item(tp, (xfs_log_item_t*)(iip));
+
+	xfs_trans_inode_broot_debug(ip);
+
+	/*
+	 * If the IO lock is already held, mark that in the inode log item.
+	 */
+	if (lock_flags & XFS_IOLOCK_EXCL) {
+		iip->ili_flags |= XFS_ILI_IOLOCKED_EXCL;
+	} else if (lock_flags & XFS_IOLOCK_SHARED) {
+		iip->ili_flags |= XFS_ILI_IOLOCKED_SHARED;
+	}
+
+	/*
+	 * Initialize i_transp so we can find it with xfs_inode_incore()
+	 * in xfs_trans_iget() above.
+	 */
+	ip->i_transp = tp;
+}
+
+
+
+/*
+ * Mark the inode as not needing to be unlocked when the inode item's
+ * IOP_UNLOCK() routine is called.  The inode must already be locked
+ * and associated with the given transaction.
+ */
+/*ARGSUSED*/
+void
+xfs_trans_ihold(
+	xfs_trans_t	*tp,
+	xfs_inode_t	*ip)
+{
+	ASSERT(ip->i_transp == tp);
+	ASSERT(ip->i_itemp != NULL);
+	ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
+
+	ip->i_itemp->ili_flags |= XFS_ILI_HOLD;
+}
+
+/*
+ * Cancel the previous inode hold request made on this inode
+ * for this transaction.
+ */
+/*ARGSUSED*/
+void
+xfs_trans_ihold_release(
+	xfs_trans_t	*tp,
+	xfs_inode_t	*ip)
+{
+	ASSERT(ip->i_transp == tp);
+	ASSERT(ip->i_itemp != NULL);
+	ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
+	ASSERT(ip->i_itemp->ili_flags & XFS_ILI_HOLD);
+
+	ip->i_itemp->ili_flags &= ~XFS_ILI_HOLD;
+}
+
+
+/*
+ * This is called to mark the fields indicated in fieldmask as needing
+ * to be logged when the transaction is committed.  The inode must
+ * already be associated with the given transaction.
+ *
+ * The values for fieldmask are defined in xfs_inode_item.h.  We always
+ * log all of the core inode if any of it has changed, and we always log
+ * all of the inline data/extents/b-tree root if any of them has changed.
+ */
+void
+xfs_trans_log_inode(
+	xfs_trans_t	*tp,
+	xfs_inode_t	*ip,
+	uint		flags)
+{
+	xfs_log_item_desc_t	*lidp;
+
+	ASSERT(ip->i_transp == tp);
+	ASSERT(ip->i_itemp != NULL);
+	ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
+
+	lidp = xfs_trans_find_item(tp, (xfs_log_item_t*)(ip->i_itemp));
+	ASSERT(lidp != NULL);
+
+	tp->t_flags |= XFS_TRANS_DIRTY;
+	lidp->lid_flags |= XFS_LID_DIRTY;
+
+	/*
+	 * Always OR in the bits from the ili_last_fields field.
+	 * This is to coordinate with the xfs_iflush() and xfs_iflush_done()
+	 * routines in the eventual clearing of the ilf_fields bits.
+	 * See the big comment in xfs_iflush() for an explanation of
+	 * this coorination mechanism.
+	 */
+	flags |= ip->i_itemp->ili_last_fields;
+	ip->i_itemp->ili_format.ilf_fields |= flags;
+}
+
+#ifdef XFS_TRANS_DEBUG
+/*
+ * Keep track of the state of the inode btree root to make sure we
+ * log it properly.
+ */
+STATIC void
+xfs_trans_inode_broot_debug(
+	xfs_inode_t	*ip)
+{
+	xfs_inode_log_item_t	*iip;
+
+	ASSERT(ip->i_itemp != NULL);
+	iip = ip->i_itemp;
+	if (iip->ili_root_size != 0) {
+		ASSERT(iip->ili_orig_root != NULL);
+		kmem_free(iip->ili_orig_root, iip->ili_root_size);
+		iip->ili_root_size = 0;
+		iip->ili_orig_root = NULL;
+	}
+	if (ip->i_d.di_format == XFS_DINODE_FMT_BTREE) {
+		ASSERT((ip->i_df.if_broot != NULL) &&
+		       (ip->i_df.if_broot_bytes > 0));
+		iip->ili_root_size = ip->i_df.if_broot_bytes;
+		iip->ili_orig_root =
+			(char*)kmem_alloc(iip->ili_root_size, KM_SLEEP);
+		memcpy(iip->ili_orig_root, (char*)(ip->i_df.if_broot),
+		      iip->ili_root_size);
+	}
+}
+#endif
diff --git a/fs/xfs/xfs_trans_item.c b/fs/xfs/xfs_trans_item.c
new file mode 100644
index 00000000000000..1b8a756d80ed00
--- /dev/null
+++ b/fs/xfs/xfs_trans_item.c
@@ -0,0 +1,553 @@
+/*
+ * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+
+STATIC int	xfs_trans_unlock_chunk(xfs_log_item_chunk_t *,
+					int, int, xfs_lsn_t);
+
+/*
+ * This is called to add the given log item to the transaction's
+ * list of log items.  It must find a free log item descriptor
+ * or allocate a new one and add the item to that descriptor.
+ * The function returns a pointer to item descriptor used to point
+ * to the new item.  The log item will now point to its new descriptor
+ * with its li_desc field.
+ */
+xfs_log_item_desc_t *
+xfs_trans_add_item(xfs_trans_t *tp, xfs_log_item_t *lip)
+{
+	xfs_log_item_desc_t	*lidp;
+	xfs_log_item_chunk_t	*licp;
+	int			i=0;
+
+	/*
+	 * If there are no free descriptors, allocate a new chunk
+	 * of them and put it at the front of the chunk list.
+	 */
+	if (tp->t_items_free == 0) {
+		licp = (xfs_log_item_chunk_t*)
+		       kmem_alloc(sizeof(xfs_log_item_chunk_t), KM_SLEEP);
+		ASSERT(licp != NULL);
+		/*
+		 * Initialize the chunk, and then
+		 * claim the first slot in the newly allocated chunk.
+		 */
+		XFS_LIC_INIT(licp);
+		XFS_LIC_CLAIM(licp, 0);
+		licp->lic_unused = 1;
+		XFS_LIC_INIT_SLOT(licp, 0);
+		lidp = XFS_LIC_SLOT(licp, 0);
+
+		/*
+		 * Link in the new chunk and update the free count.
+		 */
+		licp->lic_next = tp->t_items.lic_next;
+		tp->t_items.lic_next = licp;
+		tp->t_items_free = XFS_LIC_NUM_SLOTS - 1;
+
+		/*
+		 * Initialize the descriptor and the generic portion
+		 * of the log item.
+		 *
+		 * Point the new slot at this item and return it.
+		 * Also point the log item at its currently active
+		 * descriptor and set the item's mount pointer.
+		 */
+		lidp->lid_item = lip;
+		lidp->lid_flags = 0;
+		lidp->lid_size = 0;
+		lip->li_desc = lidp;
+		lip->li_mountp = tp->t_mountp;
+		return (lidp);
+	}
+
+	/*
+	 * Find the free descriptor. It is somewhere in the chunklist
+	 * of descriptors.
+	 */
+	licp = &tp->t_items;
+	while (licp != NULL) {
+		if (XFS_LIC_VACANCY(licp)) {
+			if (licp->lic_unused <= XFS_LIC_MAX_SLOT) {
+				i = licp->lic_unused;
+				ASSERT(XFS_LIC_ISFREE(licp, i));
+				break;
+			}
+			for (i = 0; i <= XFS_LIC_MAX_SLOT; i++) {
+				if (XFS_LIC_ISFREE(licp, i))
+					break;
+			}
+			ASSERT(i <= XFS_LIC_MAX_SLOT);
+			break;
+		}
+		licp = licp->lic_next;
+	}
+	ASSERT(licp != NULL);
+	/*
+	 * If we find a free descriptor, claim it,
+	 * initialize it, and return it.
+	 */
+	XFS_LIC_CLAIM(licp, i);
+	if (licp->lic_unused <= i) {
+		licp->lic_unused = i + 1;
+		XFS_LIC_INIT_SLOT(licp, i);
+	}
+	lidp = XFS_LIC_SLOT(licp, i);
+	tp->t_items_free--;
+	lidp->lid_item = lip;
+	lidp->lid_flags = 0;
+	lidp->lid_size = 0;
+	lip->li_desc = lidp;
+	lip->li_mountp = tp->t_mountp;
+	return (lidp);
+}
+
+/*
+ * Free the given descriptor.
+ *
+ * This requires setting the bit in the chunk's free mask corresponding
+ * to the given slot.
+ */
+void
+xfs_trans_free_item(xfs_trans_t	*tp, xfs_log_item_desc_t *lidp)
+{
+	uint			slot;
+	xfs_log_item_chunk_t	*licp;
+	xfs_log_item_chunk_t	**licpp;
+
+	slot = XFS_LIC_DESC_TO_SLOT(lidp);
+	licp = XFS_LIC_DESC_TO_CHUNK(lidp);
+	XFS_LIC_RELSE(licp, slot);
+	lidp->lid_item->li_desc = NULL;
+	tp->t_items_free++;
+
+	/*
+	 * If there are no more used items in the chunk and this is not
+	 * the chunk embedded in the transaction structure, then free
+	 * the chunk. First pull it from the chunk list and then
+	 * free it back to the heap.  We didn't bother with a doubly
+	 * linked list here because the lists should be very short
+	 * and this is not a performance path.  It's better to save
+	 * the memory of the extra pointer.
+	 *
+	 * Also decrement the transaction structure's count of free items
+	 * by the number in a chunk since we are freeing an empty chunk.
+	 */
+	if (XFS_LIC_ARE_ALL_FREE(licp) && (licp != &(tp->t_items))) {
+		licpp = &(tp->t_items.lic_next);
+		while (*licpp != licp) {
+			ASSERT(*licpp != NULL);
+			licpp = &((*licpp)->lic_next);
+		}
+		*licpp = licp->lic_next;
+		kmem_free(licp, sizeof(xfs_log_item_chunk_t));
+		tp->t_items_free -= XFS_LIC_NUM_SLOTS;
+	}
+}
+
+/*
+ * This is called to find the descriptor corresponding to the given
+ * log item.  It returns a pointer to the descriptor.
+ * The log item MUST have a corresponding descriptor in the given
+ * transaction.  This routine does not return NULL, it panics.
+ *
+ * The descriptor pointer is kept in the log item's li_desc field.
+ * Just return it.
+ */
+/*ARGSUSED*/
+xfs_log_item_desc_t *
+xfs_trans_find_item(xfs_trans_t	*tp, xfs_log_item_t *lip)
+{
+	ASSERT(lip->li_desc != NULL);
+
+	return (lip->li_desc);
+}
+
+
+/*
+ * Return a pointer to the first descriptor in the chunk list.
+ * This does not return NULL if there are none, it panics.
+ *
+ * The first descriptor must be in either the first or second chunk.
+ * This is because the only chunk allowed to be empty is the first.
+ * All others are freed when they become empty.
+ *
+ * At some point this and xfs_trans_next_item() should be optimized
+ * to quickly look at the mask to determine if there is anything to
+ * look at.
+ */
+xfs_log_item_desc_t *
+xfs_trans_first_item(xfs_trans_t *tp)
+{
+	xfs_log_item_chunk_t	*licp;
+	int			i;
+
+	licp = &tp->t_items;
+	/*
+	 * If it's not in the first chunk, skip to the second.
+	 */
+	if (XFS_LIC_ARE_ALL_FREE(licp)) {
+		licp = licp->lic_next;
+	}
+
+	/*
+	 * Return the first non-free descriptor in the chunk.
+	 */
+	ASSERT(!XFS_LIC_ARE_ALL_FREE(licp));
+	for (i = 0; i < licp->lic_unused; i++) {
+		if (XFS_LIC_ISFREE(licp, i)) {
+			continue;
+		}
+
+		return (XFS_LIC_SLOT(licp, i));
+	}
+	cmn_err(CE_WARN, "xfs_trans_first_item() -- no first item");
+	return(NULL);
+}
+
+
+/*
+ * Given a descriptor, return the next descriptor in the chunk list.
+ * This returns NULL if there are no more used descriptors in the list.
+ *
+ * We do this by first locating the chunk in which the descriptor resides,
+ * and then scanning forward in the chunk and the list for the next
+ * used descriptor.
+ */
+/*ARGSUSED*/
+xfs_log_item_desc_t *
+xfs_trans_next_item(xfs_trans_t *tp, xfs_log_item_desc_t *lidp)
+{
+	xfs_log_item_chunk_t	*licp;
+	int			i;
+
+	licp = XFS_LIC_DESC_TO_CHUNK(lidp);
+
+	/*
+	 * First search the rest of the chunk. The for loop keeps us
+	 * from referencing things beyond the end of the chunk.
+	 */
+	for (i = (int)XFS_LIC_DESC_TO_SLOT(lidp) + 1; i < licp->lic_unused; i++) {
+		if (XFS_LIC_ISFREE(licp, i)) {
+			continue;
+		}
+
+		return (XFS_LIC_SLOT(licp, i));
+	}
+
+	/*
+	 * Now search the next chunk.  It must be there, because the
+	 * next chunk would have been freed if it were empty.
+	 * If there is no next chunk, return NULL.
+	 */
+	if (licp->lic_next == NULL) {
+		return (NULL);
+	}
+
+	licp = licp->lic_next;
+	ASSERT(!XFS_LIC_ARE_ALL_FREE(licp));
+	for (i = 0; i < licp->lic_unused; i++) {
+		if (XFS_LIC_ISFREE(licp, i)) {
+			continue;
+		}
+
+		return (XFS_LIC_SLOT(licp, i));
+	}
+	ASSERT(0);
+	/* NOTREACHED */
+	return NULL; /* keep gcc quite */
+}
+
+/*
+ * This is called to unlock all of the items of a transaction and to free
+ * all the descriptors of that transaction.
+ *
+ * It walks the list of descriptors and unlocks each item.  It frees
+ * each chunk except that embedded in the transaction as it goes along.
+ */
+void
+xfs_trans_free_items(
+	xfs_trans_t	*tp,
+	int		flags)
+{
+	xfs_log_item_chunk_t	*licp;
+	xfs_log_item_chunk_t	*next_licp;
+	int			abort;
+
+	abort = flags & XFS_TRANS_ABORT;
+	licp = &tp->t_items;
+	/*
+	 * Special case the embedded chunk so we don't free it below.
+	 */
+	if (!XFS_LIC_ARE_ALL_FREE(licp)) {
+		(void) xfs_trans_unlock_chunk(licp, 1, abort, NULLCOMMITLSN);
+		XFS_LIC_ALL_FREE(licp);
+		licp->lic_unused = 0;
+	}
+	licp = licp->lic_next;
+
+	/*
+	 * Unlock each item in each chunk and free the chunks.
+	 */
+	while (licp != NULL) {
+		ASSERT(!XFS_LIC_ARE_ALL_FREE(licp));
+		(void) xfs_trans_unlock_chunk(licp, 1, abort, NULLCOMMITLSN);
+		next_licp = licp->lic_next;
+		kmem_free(licp, sizeof(xfs_log_item_chunk_t));
+		licp = next_licp;
+	}
+
+	/*
+	 * Reset the transaction structure's free item count.
+	 */
+	tp->t_items_free = XFS_LIC_NUM_SLOTS;
+	tp->t_items.lic_next = NULL;
+}
+
+
+
+/*
+ * This is called to unlock the items associated with a transaction.
+ * Items which were not logged should be freed.
+ * Those which were logged must still be tracked so they can be unpinned
+ * when the transaction commits.
+ */
+void
+xfs_trans_unlock_items(xfs_trans_t *tp, xfs_lsn_t commit_lsn)
+{
+	xfs_log_item_chunk_t	*licp;
+	xfs_log_item_chunk_t	*next_licp;
+	xfs_log_item_chunk_t	**licpp;
+	int			freed;
+
+	freed = 0;
+	licp = &tp->t_items;
+
+	/*
+	 * Special case the embedded chunk so we don't free.
+	 */
+	if (!XFS_LIC_ARE_ALL_FREE(licp)) {
+		freed = xfs_trans_unlock_chunk(licp, 0, 0, commit_lsn);
+	}
+	licpp = &(tp->t_items.lic_next);
+	licp = licp->lic_next;
+
+	/*
+	 * Unlock each item in each chunk, free non-dirty descriptors,
+	 * and free empty chunks.
+	 */
+	while (licp != NULL) {
+		ASSERT(!XFS_LIC_ARE_ALL_FREE(licp));
+		freed += xfs_trans_unlock_chunk(licp, 0, 0, commit_lsn);
+		next_licp = licp->lic_next;
+		if (XFS_LIC_ARE_ALL_FREE(licp)) {
+			*licpp = next_licp;
+			kmem_free(licp, sizeof(xfs_log_item_chunk_t));
+			freed -= XFS_LIC_NUM_SLOTS;
+		} else {
+			licpp = &(licp->lic_next);
+		}
+		ASSERT(*licpp == next_licp);
+		licp = next_licp;
+	}
+
+	/*
+	 * Fix the free descriptor count in the transaction.
+	 */
+	tp->t_items_free += freed;
+}
+
+/*
+ * Unlock each item pointed to by a descriptor in the given chunk.
+ * Stamp the commit lsn into each item if necessary.
+ * Free descriptors pointing to items which are not dirty if freeing_chunk
+ * is zero. If freeing_chunk is non-zero, then we need to unlock all
+ * items in the chunk.
+ * 
+ * Return the number of descriptors freed.
+ */
+STATIC int
+xfs_trans_unlock_chunk(
+	xfs_log_item_chunk_t	*licp,
+	int			freeing_chunk,
+	int			abort,
+	xfs_lsn_t		commit_lsn)
+{
+	xfs_log_item_desc_t	*lidp;
+	xfs_log_item_t		*lip;
+	int			i;
+	int			freed;
+
+	freed = 0;
+	lidp = licp->lic_descs;
+	for (i = 0; i < licp->lic_unused; i++, lidp++) {
+		if (XFS_LIC_ISFREE(licp, i)) {
+			continue;
+		}
+		lip = lidp->lid_item;
+		lip->li_desc = NULL;
+
+		if (commit_lsn != NULLCOMMITLSN)
+			IOP_COMMITTING(lip, commit_lsn);
+		if (abort)
+			lip->li_flags |= XFS_LI_ABORTED;
+		IOP_UNLOCK(lip);
+
+		/*
+		 * Free the descriptor if the item is not dirty
+		 * within this transaction and the caller is not
+		 * going to just free the entire thing regardless.
+		 */
+		if (!(freeing_chunk) &&
+		    (!(lidp->lid_flags & XFS_LID_DIRTY) || abort)) {
+			XFS_LIC_RELSE(licp, i);
+			freed++;
+		}
+	}
+
+	return (freed);
+}
+
+
+/*
+ * This is called to add the given busy item to the transaction's
+ * list of busy items.  It must find a free busy item descriptor
+ * or allocate a new one and add the item to that descriptor.
+ * The function returns a pointer to busy descriptor used to point
+ * to the new busy entry.  The log busy entry will now point to its new
+ * descriptor with its ???? field.
+ */
+xfs_log_busy_slot_t *
+xfs_trans_add_busy(xfs_trans_t *tp, xfs_agnumber_t ag, xfs_extlen_t idx)
+{
+	xfs_log_busy_chunk_t	*lbcp;
+	xfs_log_busy_slot_t	*lbsp;
+	int			i=0;
+
+	/*
+	 * If there are no free descriptors, allocate a new chunk
+	 * of them and put it at the front of the chunk list.
+	 */
+	if (tp->t_busy_free == 0) {
+		lbcp = (xfs_log_busy_chunk_t*)
+		       kmem_alloc(sizeof(xfs_log_busy_chunk_t), KM_SLEEP);
+		ASSERT(lbcp != NULL);
+		/*
+		 * Initialize the chunk, and then
+		 * claim the first slot in the newly allocated chunk.
+		 */
+		XFS_LBC_INIT(lbcp);
+		XFS_LBC_CLAIM(lbcp, 0);
+		lbcp->lbc_unused = 1;
+		lbsp = XFS_LBC_SLOT(lbcp, 0);
+
+		/*
+		 * Link in the new chunk and update the free count.
+		 */
+		lbcp->lbc_next = tp->t_busy.lbc_next;
+		tp->t_busy.lbc_next = lbcp;
+		tp->t_busy_free = XFS_LIC_NUM_SLOTS - 1;
+
+		/*
+		 * Initialize the descriptor and the generic portion
+		 * of the log item.
+		 *
+		 * Point the new slot at this item and return it.
+		 * Also point the log item at its currently active
+		 * descriptor and set the item's mount pointer.
+		 */
+		lbsp->lbc_ag = ag;
+		lbsp->lbc_idx = idx;
+		return (lbsp);
+	}
+
+	/*
+	 * Find the free descriptor. It is somewhere in the chunklist
+	 * of descriptors.
+	 */
+	lbcp = &tp->t_busy;
+	while (lbcp != NULL) {
+		if (XFS_LBC_VACANCY(lbcp)) {
+			if (lbcp->lbc_unused <= XFS_LBC_MAX_SLOT) {
+				i = lbcp->lbc_unused;
+				break;
+			} else {
+				/* out-of-order vacancy */
+				printk("OOO vacancy lbcp 0x%p\n", lbcp);
+				ASSERT(0);
+			}
+		}
+		lbcp = lbcp->lbc_next;
+	}
+	ASSERT(lbcp != NULL);
+	/*
+	 * If we find a free descriptor, claim it,
+	 * initialize it, and return it.
+	 */
+	XFS_LBC_CLAIM(lbcp, i);
+	if (lbcp->lbc_unused <= i) {
+		lbcp->lbc_unused = i + 1;
+	}
+	lbsp = XFS_LBC_SLOT(lbcp, i);
+	tp->t_busy_free--;
+	lbsp->lbc_ag = ag;
+	lbsp->lbc_idx = idx;
+	return (lbsp);
+}
+
+
+/*
+ * xfs_trans_free_busy
+ * Free all of the busy lists from a transaction
+ */
+void
+xfs_trans_free_busy(xfs_trans_t *tp)
+{
+	xfs_log_busy_chunk_t	*lbcp;
+	xfs_log_busy_chunk_t	*lbcq;
+
+	lbcp = tp->t_busy.lbc_next;
+	while (lbcp != NULL) {
+		lbcq = lbcp->lbc_next;
+		kmem_free(lbcp, sizeof(xfs_log_busy_chunk_t));
+		lbcp = lbcq;
+	}
+
+	XFS_LBC_INIT(&tp->t_busy);
+	tp->t_busy.lbc_unused = 0;
+}
diff --git a/fs/xfs/xfs_trans_priv.h b/fs/xfs/xfs_trans_priv.h
new file mode 100644
index 00000000000000..d4dae7d06afcdb
--- /dev/null
+++ b/fs/xfs/xfs_trans_priv.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2000, 2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_TRANS_PRIV_H__
+#define	__XFS_TRANS_PRIV_H__
+
+struct xfs_log_item;
+struct xfs_log_item_desc;
+struct xfs_mount;
+struct xfs_trans;
+
+/*
+ * From xfs_trans_item.c
+ */
+struct xfs_log_item_desc	*xfs_trans_add_item(struct xfs_trans *,
+					    struct xfs_log_item *);
+void				xfs_trans_free_item(struct xfs_trans *,
+					    struct xfs_log_item_desc *);
+struct xfs_log_item_desc	*xfs_trans_find_item(struct xfs_trans *,
+					     struct xfs_log_item *);
+struct xfs_log_item_desc	*xfs_trans_first_item(struct xfs_trans *);
+struct xfs_log_item_desc	*xfs_trans_next_item(struct xfs_trans *,
+					     struct xfs_log_item_desc *);
+void				xfs_trans_free_items(struct xfs_trans *, int);
+void				xfs_trans_unlock_items(struct xfs_trans *,
+							xfs_lsn_t);
+void				xfs_trans_free_busy(xfs_trans_t *tp);
+xfs_log_busy_slot_t		*xfs_trans_add_busy(xfs_trans_t *tp,
+						    xfs_agnumber_t ag,
+						    xfs_extlen_t idx);
+
+/*
+ * From xfs_trans_ail.c
+ */
+void			xfs_trans_update_ail(struct xfs_mount *,
+				     struct xfs_log_item *, xfs_lsn_t,
+				     unsigned long);
+void			xfs_trans_delete_ail(struct xfs_mount *,
+				     struct xfs_log_item *, unsigned long);
+struct xfs_log_item	*xfs_trans_first_ail(struct xfs_mount *, int *);
+struct xfs_log_item	*xfs_trans_next_ail(struct xfs_mount *,
+				     struct xfs_log_item *, int *, int *);
+
+
+#endif	/* __XFS_TRANS_PRIV_H__ */
diff --git a/fs/xfs/xfs_trans_space.h b/fs/xfs/xfs_trans_space.h
new file mode 100644
index 00000000000000..e91d173f4ed325
--- /dev/null
+++ b/fs/xfs/xfs_trans_space.h
@@ -0,0 +1,105 @@
+/*
+ * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_TRANS_SPACE_H__
+#define __XFS_TRANS_SPACE_H__
+
+/*
+ * Components of space reservations.
+ */
+#define XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp)    \
+		(((mp)->m_alloc_mxr[0]) - ((mp)->m_alloc_mnr[0]))
+#define	XFS_EXTENTADD_SPACE_RES(mp,w)	(XFS_BM_MAXLEVELS(mp,w) - 1)
+#define XFS_NEXTENTADD_SPACE_RES(mp,b,w)\
+	(((b + XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp) - 1) / \
+	  XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp)) * \
+	  XFS_EXTENTADD_SPACE_RES(mp,w))
+#define	XFS_DAENTER_1B(mp,w)	((w) == XFS_DATA_FORK ? (mp)->m_dirblkfsbs : 1)
+#define	XFS_DAENTER_DBS(mp,w)	\
+	(XFS_DA_NODE_MAXDEPTH + \
+	 ((XFS_DIR_IS_V2(mp) && (w) == XFS_DATA_FORK) ? 2 : 0))
+#define	XFS_DAENTER_BLOCKS(mp,w)	\
+	(XFS_DAENTER_1B(mp,w) * XFS_DAENTER_DBS(mp,w))
+#define	XFS_DAENTER_BMAP1B(mp,w)	\
+	XFS_NEXTENTADD_SPACE_RES(mp, XFS_DAENTER_1B(mp, w), w)
+#define	XFS_DAENTER_BMAPS(mp,w)		\
+	(XFS_DAENTER_DBS(mp,w) * XFS_DAENTER_BMAP1B(mp,w))
+#define	XFS_DAENTER_SPACE_RES(mp,w)	\
+	(XFS_DAENTER_BLOCKS(mp,w) + XFS_DAENTER_BMAPS(mp,w))
+#define	XFS_DAREMOVE_SPACE_RES(mp,w)	XFS_DAENTER_BMAPS(mp,w)
+#define	XFS_DIRENTER_MAX_SPLIT(mp,nl)	\
+	(((mp)->m_sb.sb_blocksize == 512 && \
+	  XFS_DIR_IS_V1(mp) && \
+	  (nl) >= XFS_DIR_LEAF_CAN_DOUBLE_SPLIT_LEN) ? 2 : 1)
+#define	XFS_DIRENTER_SPACE_RES(mp,nl)	\
+	(XFS_DAENTER_SPACE_RES(mp, XFS_DATA_FORK) * \
+	 XFS_DIRENTER_MAX_SPLIT(mp,nl))
+#define	XFS_DIRREMOVE_SPACE_RES(mp)	\
+	XFS_DAREMOVE_SPACE_RES(mp, XFS_DATA_FORK)
+#define	XFS_IALLOC_SPACE_RES(mp)	\
+	(XFS_IALLOC_BLOCKS(mp) + XFS_IN_MAXLEVELS(mp)-1)
+
+/*
+ * Space reservation values for various transactions.
+ */
+#define	XFS_ADDAFORK_SPACE_RES(mp)	\
+	((mp)->m_dirblkfsbs + \
+	 (XFS_DIR_IS_V1(mp) ? 0 : XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK)))
+#define	XFS_ATTRRM_SPACE_RES(mp)	\
+	XFS_DAREMOVE_SPACE_RES(mp, XFS_ATTR_FORK)
+/* This macro is not used - see inline code in xfs_attr_set */
+#define	XFS_ATTRSET_SPACE_RES(mp, v)	\
+	(XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK) + XFS_B_TO_FSB(mp, v))
+#define	XFS_CREATE_SPACE_RES(mp,nl)	\
+	(XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl))
+#define	XFS_DIOSTRAT_SPACE_RES(mp, v)	\
+	(XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK) + (v))
+#define	XFS_GROWFS_SPACE_RES(mp)	\
+	(2 * XFS_AG_MAXLEVELS(mp))
+#define	XFS_GROWFSRT_SPACE_RES(mp,b)	\
+	((b) + XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK))
+#define	XFS_LINK_SPACE_RES(mp,nl)	\
+	XFS_DIRENTER_SPACE_RES(mp,nl)
+#define	XFS_MKDIR_SPACE_RES(mp,nl)	\
+	(XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl))
+#define	XFS_QM_DQALLOC_SPACE_RES(mp)	\
+	(XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK) + \
+	 XFS_DQUOT_CLUSTER_SIZE_FSB)
+#define	XFS_QM_QINOCREATE_SPACE_RES(mp)	\
+	XFS_IALLOC_SPACE_RES(mp)
+#define	XFS_REMOVE_SPACE_RES(mp)	\
+	XFS_DIRREMOVE_SPACE_RES(mp)
+#define	XFS_RENAME_SPACE_RES(mp,nl)	\
+	(XFS_DIRREMOVE_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl))
+#define	XFS_SYMLINK_SPACE_RES(mp,nl,b)	\
+	(XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl) + (b))
+
+#endif	/* __XFS_TRANS_SPACE_H__ */
diff --git a/fs/xfs/xfs_types.h b/fs/xfs/xfs_types.h
new file mode 100644
index 00000000000000..04609d27ea519d
--- /dev/null
+++ b/fs/xfs/xfs_types.h
@@ -0,0 +1,182 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_TYPES_H__
+#define	__XFS_TYPES_H__
+
+#ifdef __KERNEL__
+
+/*
+ * POSIX Extensions
+ */
+typedef unsigned char		uchar_t;
+typedef unsigned short		ushort_t;
+typedef unsigned int		uint_t;
+typedef unsigned long		ulong_t;
+
+/*
+ * Additional type declarations for XFS
+ */
+typedef signed char		__int8_t;
+typedef unsigned char		__uint8_t;
+typedef signed short int	__int16_t;
+typedef unsigned short int	__uint16_t;
+typedef signed int		__int32_t;
+typedef unsigned int		__uint32_t;
+typedef signed long long int	__int64_t;
+typedef unsigned long long int	__uint64_t;
+
+typedef enum { B_FALSE,B_TRUE }	boolean_t;
+typedef __int64_t		prid_t;		/* project ID */
+typedef __uint32_t		inst_t;		/* an instruction */
+
+typedef __s64			xfs_off_t;	/* <file offset> type */
+typedef __u64			xfs_ino_t;	/* <inode> type */
+typedef __s64			xfs_daddr_t;	/* <disk address> type */
+typedef char *			xfs_caddr_t;	/* <core address> type */
+typedef __u32			xfs_dev_t;
+
+/* __psint_t is the same size as a pointer */
+#if (BITS_PER_LONG == 32)
+typedef __int32_t __psint_t;
+typedef __uint32_t __psunsigned_t;
+#elif (BITS_PER_LONG == 64)
+typedef __int64_t __psint_t;
+typedef __uint64_t __psunsigned_t;
+#else
+#error BITS_PER_LONG must be 32 or 64
+#endif
+
+#endif	/* __KERNEL__ */
+
+typedef __uint32_t	xfs_agblock_t;	/* blockno in alloc. group */
+typedef	__uint32_t	xfs_extlen_t;	/* extent length in blocks */
+typedef	__uint32_t	xfs_agnumber_t;	/* allocation group number */
+typedef __int32_t	xfs_extnum_t;	/* # of extents in a file */
+typedef __int16_t	xfs_aextnum_t;	/* # extents in an attribute fork */
+typedef	__int64_t	xfs_fsize_t;	/* bytes in a file */
+typedef __uint64_t	xfs_ufsize_t;	/* unsigned bytes in a file */
+
+typedef	__int32_t	xfs_suminfo_t;	/* type of bitmap summary info */
+typedef	__int32_t	xfs_rtword_t;	/* word type for bitmap manipulations */
+
+typedef	__int64_t	xfs_lsn_t;	/* log sequence number */
+typedef	__int32_t	xfs_tid_t;	/* transaction identifier */
+
+typedef	__uint32_t	xfs_dablk_t;	/* dir/attr block number (in file) */
+typedef	__uint32_t	xfs_dahash_t;	/* dir/attr hash value */
+
+typedef __uint16_t	xfs_prid_t;	/* prid_t truncated to 16bits in XFS */
+
+/*
+ * These types are 64 bits on disk but are either 32 or 64 bits in memory.
+ * Disk based types:
+ */
+typedef __uint64_t	xfs_dfsbno_t;	/* blockno in filesystem (agno|agbno) */
+typedef __uint64_t	xfs_drfsbno_t;	/* blockno in filesystem (raw) */
+typedef	__uint64_t	xfs_drtbno_t;	/* extent (block) in realtime area */
+typedef	__uint64_t	xfs_dfiloff_t;	/* block number in a file */
+typedef	__uint64_t	xfs_dfilblks_t;	/* number of blocks in a file */
+
+/*
+ * Memory based types are conditional.
+ */
+#if XFS_BIG_BLKNOS
+typedef	__uint64_t	xfs_fsblock_t;	/* blockno in filesystem (agno|agbno) */
+typedef __uint64_t	xfs_rfsblock_t;	/* blockno in filesystem (raw) */
+typedef __uint64_t	xfs_rtblock_t;	/* extent (block) in realtime area */
+typedef	__int64_t	xfs_srtblock_t;	/* signed version of xfs_rtblock_t */
+#else
+typedef	__uint32_t	xfs_fsblock_t;	/* blockno in filesystem (agno|agbno) */
+typedef __uint32_t	xfs_rfsblock_t;	/* blockno in filesystem (raw) */
+typedef __uint32_t	xfs_rtblock_t;	/* extent (block) in realtime area */
+typedef	__int32_t	xfs_srtblock_t;	/* signed version of xfs_rtblock_t */
+#endif
+typedef __uint64_t	xfs_fileoff_t;	/* block number in a file */
+typedef __int64_t	xfs_sfiloff_t;	/* signed block number in a file */
+typedef __uint64_t	xfs_filblks_t;	/* number of blocks in a file */
+
+typedef __uint8_t	xfs_arch_t;	/* architecture of an xfs fs */
+
+/*
+ * Null values for the types.
+ */
+#define	NULLDFSBNO	((xfs_dfsbno_t)-1)
+#define	NULLDRFSBNO	((xfs_drfsbno_t)-1)
+#define	NULLDRTBNO	((xfs_drtbno_t)-1)
+#define	NULLDFILOFF	((xfs_dfiloff_t)-1)
+
+#define	NULLFSBLOCK	((xfs_fsblock_t)-1)
+#define	NULLRFSBLOCK	((xfs_rfsblock_t)-1)
+#define	NULLRTBLOCK	((xfs_rtblock_t)-1)
+#define	NULLFILEOFF	((xfs_fileoff_t)-1)
+
+#define	NULLAGBLOCK	((xfs_agblock_t)-1)
+#define	NULLAGNUMBER	((xfs_agnumber_t)-1)
+#define	NULLEXTNUM	((xfs_extnum_t)-1)
+
+#define NULLCOMMITLSN	((xfs_lsn_t)-1)
+
+/*
+ * Max values for extlen, extnum, aextnum.
+ */
+#define	MAXEXTLEN	((xfs_extlen_t)0x001fffff)	/* 21 bits */
+#define	MAXEXTNUM	((xfs_extnum_t)0x7fffffff)	/* signed int */
+#define	MAXAEXTNUM	((xfs_aextnum_t)0x7fff)		/* signed short */
+
+/*
+ * MAXNAMELEN is the length (including the terminating null) of
+ * the longest permissible file (component) name.
+ */
+#define MAXNAMELEN	256
+
+typedef struct xfs_dirent {		/* data from readdir() */
+	xfs_ino_t	d_ino;		/* inode number of entry */
+	xfs_off_t	d_off;		/* offset of disk directory entry */
+	unsigned short	d_reclen;	/* length of this record */
+	char		d_name[1];	/* name of file */
+} xfs_dirent_t;
+
+#define DIRENTBASESIZE		(((xfs_dirent_t *)0)->d_name - (char *)0)
+#define DIRENTSIZE(namelen)	\
+	((DIRENTBASESIZE + (namelen) + \
+		sizeof(xfs_off_t)) & ~(sizeof(xfs_off_t) - 1))
+
+typedef enum {
+	XFS_LOOKUP_EQi, XFS_LOOKUP_LEi, XFS_LOOKUP_GEi
+} xfs_lookup_t;
+
+typedef enum {
+	XFS_BTNUM_BNOi, XFS_BTNUM_CNTi, XFS_BTNUM_BMAPi, XFS_BTNUM_INOi,
+	XFS_BTNUM_MAX
+} xfs_btnum_t;
+
+#endif	/* __XFS_TYPES_H__ */
diff --git a/fs/xfs/xfs_utils.c b/fs/xfs/xfs_utils.c
new file mode 100644
index 00000000000000..816b945fa0ea88
--- /dev/null
+++ b/fs/xfs/xfs_utils.c
@@ -0,0 +1,488 @@
+/*
+ * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode_item.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_error.h"
+#include "xfs_quota.h"
+#include "xfs_rw.h"
+#include "xfs_itable.h"
+#include "xfs_utils.h"
+
+/*
+ * xfs_get_dir_entry is used to get a reference to an inode given
+ * its parent directory inode and the name of the file.	 It does
+ * not lock the child inode, and it unlocks the directory before
+ * returning.  The directory's generation number is returned for
+ * use by a later call to xfs_lock_dir_and_entry.
+ */
+int
+xfs_get_dir_entry(
+	vname_t		*dentry,
+	xfs_inode_t	**ipp)
+{
+	vnode_t		*vp;
+	bhv_desc_t	*bdp;
+
+	vp = VNAME_TO_VNODE(dentry);
+	bdp = vn_bhv_lookup_unlocked(VN_BHV_HEAD(vp), &xfs_vnodeops);
+	if (!bdp) {
+		*ipp = NULL;
+		return XFS_ERROR(ENOENT);
+	}
+	VN_HOLD(vp);
+	*ipp = XFS_BHVTOI(bdp);
+	return 0;
+}
+
+int
+xfs_dir_lookup_int(
+	bhv_desc_t	*dir_bdp,
+	uint		lock_mode,
+	vname_t		*dentry,
+	xfs_ino_t	*inum,
+	xfs_inode_t	**ipp)
+{
+	vnode_t		*dir_vp;
+	xfs_inode_t	*dp;
+	int		error;
+
+	dir_vp = BHV_TO_VNODE(dir_bdp);
+	vn_trace_entry(dir_vp, __FUNCTION__, (inst_t *)__return_address);
+
+	dp = XFS_BHVTOI(dir_bdp);
+
+	error = XFS_DIR_LOOKUP(dp->i_mount, NULL, dp,
+				VNAME(dentry), VNAMELEN(dentry), inum);
+	if (!error) {
+		/*
+		 * Unlock the directory. We do this because we can't
+		 * hold the directory lock while doing the vn_get()
+		 * in xfs_iget().  Doing so could cause us to hold
+		 * a lock while waiting for the inode to finish
+		 * being inactive while it's waiting for a log
+		 * reservation in the inactive routine.
+		 */
+		xfs_iunlock(dp, lock_mode);
+		error = xfs_iget(dp->i_mount, NULL, *inum, 0, 0, ipp, 0);
+		xfs_ilock(dp, lock_mode);
+
+		if (error) {
+			*ipp = NULL;
+		} else if ((*ipp)->i_d.di_mode == 0) {
+			/*
+			 * The inode has been freed.  Something is
+			 * wrong so just get out of here.
+			 */
+			xfs_iunlock(dp, lock_mode);
+			xfs_iput_new(*ipp, 0);
+			*ipp = NULL;
+			xfs_ilock(dp, lock_mode);
+			error = XFS_ERROR(ENOENT);
+		}
+	}
+	return error;
+}
+
+/*
+ * Allocates a new inode from disk and return a pointer to the
+ * incore copy. This routine will internally commit the current
+ * transaction and allocate a new one if the Space Manager needed
+ * to do an allocation to replenish the inode free-list.
+ *
+ * This routine is designed to be called from xfs_create and
+ * xfs_create_dir.
+ *
+ */
+int
+xfs_dir_ialloc(
+	xfs_trans_t	**tpp,		/* input: current transaction;
+					   output: may be a new transaction. */
+	xfs_inode_t	*dp,		/* directory within whose allocate
+					   the inode. */
+	mode_t		mode,
+	nlink_t		nlink,
+	xfs_dev_t	rdev,
+	cred_t		*credp,
+	prid_t		prid,		/* project id */
+	int		okalloc,	/* ok to allocate new space */
+	xfs_inode_t	**ipp,		/* pointer to inode; it will be
+					   locked. */
+	int		*committed)
+
+{
+	xfs_trans_t	*tp;
+	xfs_trans_t	*ntp;
+	xfs_inode_t	*ip;
+	xfs_buf_t	*ialloc_context = NULL;
+	boolean_t	call_again = B_FALSE;
+	int		code;
+	uint		log_res;
+	uint		log_count;
+	void		*dqinfo;
+	uint		tflags;
+
+	tp = *tpp;
+	ASSERT(tp->t_flags & XFS_TRANS_PERM_LOG_RES);
+
+	/*
+	 * xfs_ialloc will return a pointer to an incore inode if
+	 * the Space Manager has an available inode on the free
+	 * list. Otherwise, it will do an allocation and replenish
+	 * the freelist.  Since we can only do one allocation per
+	 * transaction without deadlocks, we will need to commit the
+	 * current transaction and start a new one.  We will then
+	 * need to call xfs_ialloc again to get the inode.
+	 *
+	 * If xfs_ialloc did an allocation to replenish the freelist,
+	 * it returns the bp containing the head of the freelist as
+	 * ialloc_context. We will hold a lock on it across the
+	 * transaction commit so that no other process can steal
+	 * the inode(s) that we've just allocated.
+	 */
+	code = xfs_ialloc(tp, dp, mode, nlink, rdev, credp, prid, okalloc,
+			  &ialloc_context, &call_again, &ip);
+
+	/*
+	 * Return an error if we were unable to allocate a new inode.
+	 * This should only happen if we run out of space on disk or
+	 * encounter a disk error.
+	 */
+	if (code) {
+		*ipp = NULL;
+		return code;
+	}
+	if (!call_again && (ip == NULL)) {
+		*ipp = NULL;
+		return XFS_ERROR(ENOSPC);
+	}
+
+	/*
+	 * If call_again is set, then we were unable to get an
+	 * inode in one operation.  We need to commit the current
+	 * transaction and call xfs_ialloc() again.  It is guaranteed
+	 * to succeed the second time.
+	 */
+	if (call_again) {
+
+		/*
+		 * Normally, xfs_trans_commit releases all the locks.
+		 * We call bhold to hang on to the ialloc_context across
+		 * the commit.  Holding this buffer prevents any other
+		 * processes from doing any allocations in this
+		 * allocation group.
+		 */
+		xfs_trans_bhold(tp, ialloc_context);
+		/*
+		 * Save the log reservation so we can use
+		 * them in the next transaction.
+		 */
+		log_res = xfs_trans_get_log_res(tp);
+		log_count = xfs_trans_get_log_count(tp);
+
+		/*
+		 * We want the quota changes to be associated with the next
+		 * transaction, NOT this one. So, detach the dqinfo from this
+		 * and attach it to the next transaction.
+		 */
+		dqinfo = NULL;
+		tflags = 0;
+		if (tp->t_dqinfo) {
+			dqinfo = (void *)tp->t_dqinfo;
+			tp->t_dqinfo = NULL;
+			tflags = tp->t_flags & XFS_TRANS_DQ_DIRTY;
+			tp->t_flags &= ~(XFS_TRANS_DQ_DIRTY);
+		}
+
+		ntp = xfs_trans_dup(tp);
+		code = xfs_trans_commit(tp, 0, NULL);
+		tp = ntp;
+		if (committed != NULL) {
+			*committed = 1;
+		}
+		/*
+		 * If we get an error during the commit processing,
+		 * release the buffer that is still held and return
+		 * to the caller.
+		 */
+		if (code) {
+			xfs_buf_relse(ialloc_context);
+			if (dqinfo) {
+				tp->t_dqinfo = dqinfo;
+				XFS_TRANS_FREE_DQINFO(tp->t_mountp, tp);
+			}
+			*tpp = ntp;
+			*ipp = NULL;
+			return code;
+		}
+		code = xfs_trans_reserve(tp, 0, log_res, 0,
+					 XFS_TRANS_PERM_LOG_RES, log_count);
+		/*
+		 * Re-attach the quota info that we detached from prev trx.
+		 */
+		if (dqinfo) {
+			tp->t_dqinfo = dqinfo;
+			tp->t_flags |= tflags;
+		}
+
+		if (code) {
+			xfs_buf_relse(ialloc_context);
+			*tpp = ntp;
+			*ipp = NULL;
+			return code;
+		}
+		xfs_trans_bjoin(tp, ialloc_context);
+
+		/*
+		 * Call ialloc again. Since we've locked out all
+		 * other allocations in this allocation group,
+		 * this call should always succeed.
+		 */
+		code = xfs_ialloc(tp, dp, mode, nlink, rdev, credp, prid,
+				  okalloc, &ialloc_context, &call_again, &ip);
+
+		/*
+		 * If we get an error at this point, return to the caller
+		 * so that the current transaction can be aborted.
+		 */
+		if (code) {
+			*tpp = tp;
+			*ipp = NULL;
+			return code;
+		}
+		ASSERT ((!call_again) && (ip != NULL));
+
+	} else {
+		if (committed != NULL) {
+			*committed = 0;
+		}
+	}
+
+	*ipp = ip;
+	*tpp = tp;
+
+	return 0;
+}
+
+/*
+ * Decrement the link count on an inode & log the change.
+ * If this causes the link count to go to zero, initiate the
+ * logging activity required to truncate a file.
+ */
+int				/* error */
+xfs_droplink(
+	xfs_trans_t *tp,
+	xfs_inode_t *ip)
+{
+	int	error;
+
+	xfs_ichgtime(ip, XFS_ICHGTIME_CHG);
+
+	ASSERT (ip->i_d.di_nlink > 0);
+	ip->i_d.di_nlink--;
+	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+
+	error = 0;
+	if (ip->i_d.di_nlink == 0) {
+		/*
+		 * We're dropping the last link to this file.
+		 * Move the on-disk inode to the AGI unlinked list.
+		 * From xfs_inactive() we will pull the inode from
+		 * the list and free it.
+		 */
+		error = xfs_iunlink(tp, ip);
+	}
+	return error;
+}
+
+/*
+ * This gets called when the inode's version needs to be changed from 1 to 2.
+ * Currently this happens when the nlink field overflows the old 16-bit value
+ * or when chproj is called to change the project for the first time.
+ * As a side effect the superblock version will also get rev'd
+ * to contain the NLINK bit.
+ */
+void
+xfs_bump_ino_vers2(
+	xfs_trans_t	*tp,
+	xfs_inode_t	*ip)
+{
+	xfs_mount_t	*mp;
+	unsigned long		s;
+
+	ASSERT(ismrlocked (&ip->i_lock, MR_UPDATE));
+	ASSERT(ip->i_d.di_version == XFS_DINODE_VERSION_1);
+
+	ip->i_d.di_version = XFS_DINODE_VERSION_2;
+	ip->i_d.di_onlink = 0;
+	memset(&(ip->i_d.di_pad[0]), 0, sizeof(ip->i_d.di_pad));
+	mp = tp->t_mountp;
+	if (!XFS_SB_VERSION_HASNLINK(&mp->m_sb)) {
+		s = XFS_SB_LOCK(mp);
+		if (!XFS_SB_VERSION_HASNLINK(&mp->m_sb)) {
+			XFS_SB_VERSION_ADDNLINK(&mp->m_sb);
+			XFS_SB_UNLOCK(mp, s);
+			xfs_mod_sb(tp, XFS_SB_VERSIONNUM);
+		} else {
+			XFS_SB_UNLOCK(mp, s);
+		}
+	}
+	/* Caller must log the inode */
+}
+
+/*
+ * Increment the link count on an inode & log the change.
+ */
+int
+xfs_bumplink(
+	xfs_trans_t *tp,
+	xfs_inode_t *ip)
+{
+	if (ip->i_d.di_nlink >= XFS_MAXLINK)
+		return XFS_ERROR(EMLINK);
+	xfs_ichgtime(ip, XFS_ICHGTIME_CHG);
+
+	ASSERT(ip->i_d.di_nlink > 0);
+	ip->i_d.di_nlink++;
+	if ((ip->i_d.di_version == XFS_DINODE_VERSION_1) &&
+	    (ip->i_d.di_nlink > XFS_MAXLINK_1)) {
+		/*
+		 * The inode has increased its number of links beyond
+		 * what can fit in an old format inode.  It now needs
+		 * to be converted to a version 2 inode with a 32 bit
+		 * link count.  If this is the first inode in the file
+		 * system to do this, then we need to bump the superblock
+		 * version number as well.
+		 */
+		xfs_bump_ino_vers2(tp, ip);
+	}
+
+	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+	return 0;
+}
+
+/*
+ * Try to truncate the given file to 0 length.  Currently called
+ * only out of xfs_remove when it has to truncate a file to free
+ * up space for the remove to proceed.
+ */
+int
+xfs_truncate_file(
+	xfs_mount_t	*mp,
+	xfs_inode_t	*ip)
+{
+	xfs_trans_t	*tp;
+	int		error;
+
+#ifdef QUOTADEBUG
+	/*
+	 * This is called to truncate the quotainodes too.
+	 */
+	if (XFS_IS_UQUOTA_ON(mp)) {
+		if (ip->i_ino != mp->m_sb.sb_uquotino)
+			ASSERT(ip->i_udquot);
+	}
+	if (XFS_IS_GQUOTA_ON(mp)) {
+		if (ip->i_ino != mp->m_sb.sb_gquotino)
+			ASSERT(ip->i_gdquot);
+	}
+#endif
+	/*
+	 * Make the call to xfs_itruncate_start before starting the
+	 * transaction, because we cannot make the call while we're
+	 * in a transaction.
+	 */
+	xfs_ilock(ip, XFS_IOLOCK_EXCL);
+	xfs_itruncate_start(ip, XFS_ITRUNC_DEFINITE, (xfs_fsize_t)0);
+
+	tp = xfs_trans_alloc(mp, XFS_TRANS_TRUNCATE_FILE);
+	if ((error = xfs_trans_reserve(tp, 0, XFS_ITRUNCATE_LOG_RES(mp), 0,
+				      XFS_TRANS_PERM_LOG_RES,
+				      XFS_ITRUNCATE_LOG_COUNT))) {
+		xfs_trans_cancel(tp, 0);
+		xfs_iunlock(ip, XFS_IOLOCK_EXCL);
+		return error;
+	}
+
+	/*
+	 * Follow the normal truncate locking protocol.  Since we
+	 * hold the inode in the transaction, we know that it's number
+	 * of references will stay constant.
+	 */
+	xfs_ilock(ip, XFS_ILOCK_EXCL);
+	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
+	xfs_trans_ihold(tp, ip);
+	/*
+	 * Signal a sync xaction.  The only case where that isn't
+	 * the case is if we're truncating an already unlinked file
+	 * on a wsync fs.  In that case, we know the blocks can't
+	 * reappear in the file because the links to file are
+	 * permanently toast.  Currently, we're always going to
+	 * want a sync transaction because this code is being
+	 * called from places where nlink is guaranteed to be 1
+	 * but I'm leaving the tests in to protect against future
+	 * changes -- rcc.
+	 */
+	error = xfs_itruncate_finish(&tp, ip, (xfs_fsize_t)0,
+				     XFS_DATA_FORK,
+				     ((ip->i_d.di_nlink != 0 ||
+				       !(mp->m_flags & XFS_MOUNT_WSYNC))
+				      ? 1 : 0));
+	if (error) {
+		xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES |
+				 XFS_TRANS_ABORT);
+	} else {
+		xfs_ichgtime(ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+		error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES,
+					 NULL);
+	}
+	xfs_iunlock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
+
+	return error;
+}
diff --git a/fs/xfs/xfs_utils.h b/fs/xfs/xfs_utils.h
new file mode 100644
index 00000000000000..e1ed6a5880007f
--- /dev/null
+++ b/fs/xfs/xfs_utils.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_UTILS_H__
+#define __XFS_UTILS_H__
+
+#define IRELE(ip)	VN_RELE(XFS_ITOV(ip))
+#define IHOLD(ip)	VN_HOLD(XFS_ITOV(ip))
+#define	ITRACE(ip)	vn_trace_ref(XFS_ITOV(ip), __FILE__, __LINE__, \
+				(inst_t *)__return_address)
+
+extern int xfs_rename (bhv_desc_t *, vname_t *, vnode_t *, vname_t *, cred_t *);
+extern int xfs_get_dir_entry (vname_t *, xfs_inode_t **);
+extern int xfs_dir_lookup_int (bhv_desc_t *, uint, vname_t *, xfs_ino_t *,
+				xfs_inode_t **);
+extern int xfs_truncate_file (xfs_mount_t *, xfs_inode_t *);
+extern int xfs_dir_ialloc (xfs_trans_t **, xfs_inode_t *, mode_t, nlink_t,
+				xfs_dev_t, cred_t *, prid_t, int,
+				xfs_inode_t **, int *);
+extern int xfs_droplink (xfs_trans_t *, xfs_inode_t *);
+extern int xfs_bumplink (xfs_trans_t *, xfs_inode_t *);
+extern void xfs_bump_ino_vers2 (xfs_trans_t *, xfs_inode_t *);
+
+#endif	/* __XFS_UTILS_H__ */
diff --git a/fs/xfs/xfs_vfsops.c b/fs/xfs/xfs_vfsops.c
new file mode 100644
index 00000000000000..f176ce1b92740f
--- /dev/null
+++ b/fs/xfs/xfs_vfsops.c
@@ -0,0 +1,1928 @@
+/*
+ * XFS filesystem operations.
+ *
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_alloc.h"
+#include "xfs_ialloc.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode_item.h"
+#include "xfs_inode.h"
+#include "xfs_ag.h"
+#include "xfs_error.h"
+#include "xfs_bmap.h"
+#include "xfs_da_btree.h"
+#include "xfs_rw.h"
+#include "xfs_refcache.h"
+#include "xfs_buf_item.h"
+#include "xfs_extfree_item.h"
+#include "xfs_quota.h"
+#include "xfs_dir2_trace.h"
+#include "xfs_acl.h"
+#include "xfs_attr.h"
+#include "xfs_clnt.h"
+#include "xfs_log_priv.h"
+
+STATIC int xfs_sync(bhv_desc_t *, int, cred_t *);
+
+int
+xfs_init(void)
+{
+	extern kmem_zone_t	*xfs_bmap_free_item_zone;
+	extern kmem_zone_t	*xfs_btree_cur_zone;
+	extern kmem_zone_t	*xfs_trans_zone;
+	extern kmem_zone_t	*xfs_buf_item_zone;
+	extern kmem_zone_t	*xfs_dabuf_zone;
+#ifdef XFS_DABUF_DEBUG
+	extern lock_t	        xfs_dabuf_global_lock;
+	spinlock_init(&xfs_dabuf_global_lock, "xfsda");
+#endif
+
+	/*
+	 * Initialize all of the zone allocators we use.
+	 */
+	xfs_bmap_free_item_zone = kmem_zone_init(sizeof(xfs_bmap_free_item_t),
+						 "xfs_bmap_free_item");
+	xfs_btree_cur_zone = kmem_zone_init(sizeof(xfs_btree_cur_t),
+					    "xfs_btree_cur");
+	xfs_inode_zone = kmem_zone_init(sizeof(xfs_inode_t), "xfs_inode");
+	xfs_trans_zone = kmem_zone_init(sizeof(xfs_trans_t), "xfs_trans");
+	xfs_da_state_zone =
+		kmem_zone_init(sizeof(xfs_da_state_t), "xfs_da_state");
+	xfs_dabuf_zone = kmem_zone_init(sizeof(xfs_dabuf_t), "xfs_dabuf");
+
+	/*
+	 * The size of the zone allocated buf log item is the maximum
+	 * size possible under XFS.  This wastes a little bit of memory,
+	 * but it is much faster.
+	 */
+	xfs_buf_item_zone =
+		kmem_zone_init((sizeof(xfs_buf_log_item_t) +
+				(((XFS_MAX_BLOCKSIZE / XFS_BLI_CHUNK) /
+				  NBWORD) * sizeof(int))),
+			       "xfs_buf_item");
+	xfs_efd_zone = kmem_zone_init((sizeof(xfs_efd_log_item_t) +
+				       ((XFS_EFD_MAX_FAST_EXTENTS - 1) * sizeof(xfs_extent_t))),
+				      "xfs_efd_item");
+	xfs_efi_zone = kmem_zone_init((sizeof(xfs_efi_log_item_t) +
+				       ((XFS_EFI_MAX_FAST_EXTENTS - 1) * sizeof(xfs_extent_t))),
+				      "xfs_efi_item");
+	xfs_ifork_zone = kmem_zone_init(sizeof(xfs_ifork_t), "xfs_ifork");
+	xfs_ili_zone = kmem_zone_init(sizeof(xfs_inode_log_item_t), "xfs_ili");
+	xfs_chashlist_zone = kmem_zone_init(sizeof(xfs_chashlist_t),
+					    "xfs_chashlist");
+	xfs_acl_zone_init(xfs_acl_zone, "xfs_acl");
+
+	/*
+	 * Allocate global trace buffers.
+	 */
+#ifdef XFS_ALLOC_TRACE
+	xfs_alloc_trace_buf = ktrace_alloc(XFS_ALLOC_TRACE_SIZE, KM_SLEEP);
+#endif
+#ifdef XFS_BMAP_TRACE
+	xfs_bmap_trace_buf = ktrace_alloc(XFS_BMAP_TRACE_SIZE, KM_SLEEP);
+#endif
+#ifdef XFS_BMBT_TRACE
+	xfs_bmbt_trace_buf = ktrace_alloc(XFS_BMBT_TRACE_SIZE, KM_SLEEP);
+#endif
+#ifdef XFS_DIR_TRACE
+	xfs_dir_trace_buf = ktrace_alloc(XFS_DIR_TRACE_SIZE, KM_SLEEP);
+#endif
+#ifdef XFS_ATTR_TRACE
+	xfs_attr_trace_buf = ktrace_alloc(XFS_ATTR_TRACE_SIZE, KM_SLEEP);
+#endif
+#ifdef XFS_DIR2_TRACE
+	xfs_dir2_trace_buf = ktrace_alloc(XFS_DIR2_GTRACE_SIZE, KM_SLEEP);
+#endif
+
+	xfs_dir_startup();
+
+#if (defined(DEBUG) || defined(INDUCE_IO_ERROR))
+	xfs_error_test_init();
+#endif /* DEBUG || INDUCE_IO_ERROR */
+
+	xfs_init_procfs();
+	xfs_sysctl_register();
+	return 0;
+}
+
+void
+xfs_cleanup(void)
+{
+	extern kmem_zone_t	*xfs_bmap_free_item_zone;
+	extern kmem_zone_t	*xfs_btree_cur_zone;
+	extern kmem_zone_t	*xfs_inode_zone;
+	extern kmem_zone_t	*xfs_trans_zone;
+	extern kmem_zone_t	*xfs_da_state_zone;
+	extern kmem_zone_t	*xfs_dabuf_zone;
+	extern kmem_zone_t	*xfs_efd_zone;
+	extern kmem_zone_t	*xfs_efi_zone;
+	extern kmem_zone_t	*xfs_buf_item_zone;
+	extern kmem_zone_t	*xfs_chashlist_zone;
+
+	xfs_cleanup_procfs();
+	xfs_sysctl_unregister();
+	xfs_refcache_destroy();
+	xfs_acl_zone_destroy(xfs_acl_zone);
+
+#ifdef XFS_DIR2_TRACE
+	ktrace_free(xfs_dir2_trace_buf);
+#endif
+#ifdef XFS_ATTR_TRACE
+	ktrace_free(xfs_attr_trace_buf);
+#endif
+#ifdef XFS_DIR_TRACE
+	ktrace_free(xfs_dir_trace_buf);
+#endif
+#ifdef XFS_BMBT_TRACE
+	ktrace_free(xfs_bmbt_trace_buf);
+#endif
+#ifdef XFS_BMAP_TRACE
+	ktrace_free(xfs_bmap_trace_buf);
+#endif
+#ifdef XFS_ALLOC_TRACE
+	ktrace_free(xfs_alloc_trace_buf);
+#endif
+
+	kmem_cache_destroy(xfs_bmap_free_item_zone);
+	kmem_cache_destroy(xfs_btree_cur_zone);
+	kmem_cache_destroy(xfs_inode_zone);
+	kmem_cache_destroy(xfs_trans_zone);
+	kmem_cache_destroy(xfs_da_state_zone);
+	kmem_cache_destroy(xfs_dabuf_zone);
+	kmem_cache_destroy(xfs_buf_item_zone);
+	kmem_cache_destroy(xfs_efd_zone);
+	kmem_cache_destroy(xfs_efi_zone);
+	kmem_cache_destroy(xfs_ifork_zone);
+	kmem_cache_destroy(xfs_ili_zone);
+	kmem_cache_destroy(xfs_chashlist_zone);
+}
+
+/*
+ * xfs_start_flags
+ *
+ * This function fills in xfs_mount_t fields based on mount args.
+ * Note: the superblock has _not_ yet been read in.
+ */
+STATIC int
+xfs_start_flags(
+	struct vfs		*vfs,
+	struct xfs_mount_args	*ap,
+	struct xfs_mount	*mp)
+{
+	/* Values are in BBs */
+	if ((ap->flags & XFSMNT_NOALIGN) != XFSMNT_NOALIGN) {
+		/*
+		 * At this point the superblock has not been read
+		 * in, therefore we do not know the block size.
+		 * Before the mount call ends we will convert
+		 * these to FSBs.
+		 */
+		mp->m_dalign = ap->sunit;
+		mp->m_swidth = ap->swidth;
+	}
+
+	if (ap->logbufs != -1 &&
+#if defined(DEBUG) || defined(XLOG_NOLOG)
+	    ap->logbufs != 0 &&
+#endif
+	    (ap->logbufs < XLOG_MIN_ICLOGS ||
+	     ap->logbufs > XLOG_MAX_ICLOGS)) {
+		cmn_err(CE_WARN,
+			"XFS: invalid logbufs value: %d [not %d-%d]",
+			ap->logbufs, XLOG_MIN_ICLOGS, XLOG_MAX_ICLOGS);
+		return XFS_ERROR(EINVAL);
+	}
+	mp->m_logbufs = ap->logbufs;
+	if (ap->logbufsize != -1 &&
+	    ap->logbufsize != 16 * 1024 &&
+	    ap->logbufsize != 32 * 1024 &&
+	    ap->logbufsize != 64 * 1024 &&
+	    ap->logbufsize != 128 * 1024 &&
+	    ap->logbufsize != 256 * 1024) {
+		cmn_err(CE_WARN,
+	"XFS: invalid logbufsize: %d [not 16k,32k,64k,128k or 256k]",
+			ap->logbufsize);
+		return XFS_ERROR(EINVAL);
+	}
+	mp->m_logbsize = ap->logbufsize;
+	mp->m_fsname_len = strlen(ap->fsname) + 1;
+	mp->m_fsname = kmem_alloc(mp->m_fsname_len, KM_SLEEP);
+	strcpy(mp->m_fsname, ap->fsname);
+
+	/*
+	 * Pull in the 'wsync' and 'ino64' mount options before we do the real
+	 * work of mounting and recovery.  The arg pointer will
+	 * be NULL when we are being called from the root mount code.
+	 */
+	if (ap->flags & XFSMNT_WSYNC)
+		mp->m_flags |= XFS_MOUNT_WSYNC;
+#if XFS_BIG_INUMS
+	if (ap->flags & XFSMNT_INO64) {
+		mp->m_flags |= XFS_MOUNT_INO64;
+		mp->m_inoadd = XFS_INO64_OFFSET;
+	}
+#endif
+	if (ap->flags & XFSMNT_NOATIME)
+		mp->m_flags |= XFS_MOUNT_NOATIME;
+
+	if (ap->flags & XFSMNT_RETERR)
+		mp->m_flags |= XFS_MOUNT_RETERR;
+
+	if (ap->flags & XFSMNT_NOALIGN)
+		mp->m_flags |= XFS_MOUNT_NOALIGN;
+
+	if (ap->flags & XFSMNT_SWALLOC)
+		mp->m_flags |= XFS_MOUNT_SWALLOC;
+
+	if (ap->flags & XFSMNT_OSYNCISOSYNC)
+		mp->m_flags |= XFS_MOUNT_OSYNCISOSYNC;
+
+	if (ap->flags & XFSMNT_32BITINODES)
+		mp->m_flags |= (XFS_MOUNT_32BITINODES | XFS_MOUNT_32BITINOOPT);
+
+	if (ap->flags & XFSMNT_IOSIZE) {
+		if (ap->iosizelog > XFS_MAX_IO_LOG ||
+		    ap->iosizelog < XFS_MIN_IO_LOG) {
+			cmn_err(CE_WARN,
+		"XFS: invalid log iosize: %d [not %d-%d]",
+				ap->iosizelog, XFS_MIN_IO_LOG,
+				XFS_MAX_IO_LOG);
+			return XFS_ERROR(EINVAL);
+		}
+
+		mp->m_flags |= XFS_MOUNT_DFLT_IOSIZE;
+		mp->m_readio_log = mp->m_writeio_log = ap->iosizelog;
+	}
+	if (ap->flags & XFSMNT_IDELETE)
+		mp->m_flags |= XFS_MOUNT_IDELETE;
+
+	/*
+	 * no recovery flag requires a read-only mount
+	 */
+	if (ap->flags & XFSMNT_NORECOVERY) {
+		if (!(vfs->vfs_flag & VFS_RDONLY)) {
+			cmn_err(CE_WARN,
+	"XFS: tried to mount a FS read-write without recovery!");
+			return XFS_ERROR(EINVAL);
+		}
+		mp->m_flags |= XFS_MOUNT_NORECOVERY;
+	}
+
+	if (ap->flags & XFSMNT_NOUUID)
+		mp->m_flags |= XFS_MOUNT_NOUUID;
+	if (ap->flags & XFSMNT_NOLOGFLUSH)
+		mp->m_flags |= XFS_MOUNT_NOLOGFLUSH;
+
+	return 0;
+}
+
+/*
+ * This function fills in xfs_mount_t fields based on mount args.
+ * Note: the superblock _has_ now been read in.
+ */
+STATIC int
+xfs_finish_flags(
+	struct vfs		*vfs,
+	struct xfs_mount_args	*ap,
+	struct xfs_mount	*mp)
+{
+	int			ronly = (vfs->vfs_flag & VFS_RDONLY);
+
+	/* Fail a mount where the logbuf is smaller then the log stripe */
+	if (XFS_SB_VERSION_HASLOGV2(&mp->m_sb)) {
+		if ((ap->logbufsize == -1) &&
+		    (mp->m_sb.sb_logsunit > XLOG_BIG_RECORD_BSIZE)) {
+			mp->m_logbsize = mp->m_sb.sb_logsunit;
+		} else if (ap->logbufsize < mp->m_sb.sb_logsunit) {
+			cmn_err(CE_WARN,
+	"XFS: logbuf size must be greater than or equal to log stripe size");
+			return XFS_ERROR(EINVAL);
+		}
+	} else {
+		/* Fail a mount if the logbuf is larger than 32K */
+		if (ap->logbufsize > XLOG_BIG_RECORD_BSIZE) {
+			cmn_err(CE_WARN,
+	"XFS: logbuf size for version 1 logs must be 16K or 32K");
+			return XFS_ERROR(EINVAL);
+		}
+	}
+
+	/*
+	 * prohibit r/w mounts of read-only filesystems
+	 */
+	if ((mp->m_sb.sb_flags & XFS_SBF_READONLY) && !ronly) {
+		cmn_err(CE_WARN,
+	"XFS: cannot mount a read-only filesystem as read-write");
+		return XFS_ERROR(EROFS);
+	}
+
+	/*
+	 * disallow mount attempts with (IRIX) project quota enabled
+	 */
+	if (XFS_SB_VERSION_HASQUOTA(&mp->m_sb) &&
+	    (mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT)) {
+		cmn_err(CE_WARN,
+	"XFS: cannot mount a filesystem with IRIX project quota enabled");
+		return XFS_ERROR(ENOSYS);
+	}
+
+	/*
+	 * check for shared mount.
+	 */
+	if (ap->flags & XFSMNT_SHARED) {
+		if (!XFS_SB_VERSION_HASSHARED(&mp->m_sb))
+			return XFS_ERROR(EINVAL);
+
+		/*
+		 * For IRIX 6.5, shared mounts must have the shared
+		 * version bit set, have the persistent readonly
+		 * field set, must be version 0 and can only be mounted
+		 * read-only.
+		 */
+		if (!ronly || !(mp->m_sb.sb_flags & XFS_SBF_READONLY) ||
+		     (mp->m_sb.sb_shared_vn != 0))
+			return XFS_ERROR(EINVAL);
+
+		mp->m_flags |= XFS_MOUNT_SHARED;
+
+		/*
+		 * Shared XFS V0 can't deal with DMI.  Return EINVAL.
+		 */
+		if (mp->m_sb.sb_shared_vn == 0 && (ap->flags & XFSMNT_DMAPI))
+			return XFS_ERROR(EINVAL);
+	}
+
+	return 0;
+}
+
+/*
+ * xfs_mount
+ *
+ * The file system configurations are:
+ *	(1) device (partition) with data and internal log
+ *	(2) logical volume with data and log subvolumes.
+ *	(3) logical volume with data, log, and realtime subvolumes.
+ *
+ * We only have to handle opening the log and realtime volumes here if
+ * they are present.  The data subvolume has already been opened by
+ * get_sb_bdev() and is stored in vfsp->vfs_super->s_bdev.
+ */
+STATIC int
+xfs_mount(
+	struct bhv_desc		*bhvp,
+	struct xfs_mount_args	*args,
+	cred_t			*credp)
+{
+	struct vfs		*vfsp = bhvtovfs(bhvp);
+	struct bhv_desc		*p;
+	struct xfs_mount	*mp = XFS_BHVTOM(bhvp);
+	struct block_device	*ddev, *logdev, *rtdev;
+	int			flags = 0, error;
+
+	ddev = vfsp->vfs_super->s_bdev;
+	logdev = rtdev = NULL;
+
+	/*
+	 * Setup xfs_mount function vectors from available behaviors
+	 */
+	p = vfs_bhv_lookup(vfsp, VFS_POSITION_DM);
+	mp->m_dm_ops = p ? *(xfs_dmops_t *) vfs_bhv_custom(p) : xfs_dmcore_stub;
+	p = vfs_bhv_lookup(vfsp, VFS_POSITION_QM);
+	mp->m_qm_ops = p ? *(xfs_qmops_t *) vfs_bhv_custom(p) : xfs_qmcore_stub;
+	p = vfs_bhv_lookup(vfsp, VFS_POSITION_IO);
+	mp->m_io_ops = p ? *(xfs_ioops_t *) vfs_bhv_custom(p) : xfs_iocore_xfs;
+
+	/*
+	 * Open real time and log devices - order is important.
+	 */
+	if (args->logname[0]) {
+		error = xfs_blkdev_get(mp, args->logname, &logdev);
+		if (error)
+			return error;
+	}
+	if (args->rtname[0]) {
+		error = xfs_blkdev_get(mp, args->rtname, &rtdev);
+		if (error) {
+			xfs_blkdev_put(logdev);
+			return error;
+		}
+
+		if (rtdev == ddev || rtdev == logdev) {
+			cmn_err(CE_WARN,
+	"XFS: Cannot mount filesystem with identical rtdev and ddev/logdev.");
+			xfs_blkdev_put(logdev);
+			xfs_blkdev_put(rtdev);
+			return EINVAL;
+		}
+	}
+
+	/*
+	 * Setup xfs_mount buffer target pointers
+	 */
+	error = ENOMEM;
+	mp->m_ddev_targp = xfs_alloc_buftarg(ddev);
+	if (!mp->m_ddev_targp) {
+		xfs_blkdev_put(logdev);
+		xfs_blkdev_put(rtdev);
+		return error;
+	}
+	if (rtdev) {
+		mp->m_rtdev_targp = xfs_alloc_buftarg(rtdev);
+		if (!mp->m_rtdev_targp)
+			goto error0;
+	}
+	mp->m_logdev_targp = (logdev && logdev != ddev) ?
+				xfs_alloc_buftarg(logdev) : mp->m_ddev_targp;
+	if (!mp->m_logdev_targp)
+		goto error0;
+
+	/*
+	 * Setup flags based on mount(2) options and then the superblock
+	 */
+	error = xfs_start_flags(vfsp, args, mp);
+	if (error)
+		goto error1;
+	error = xfs_readsb(mp);
+	if (error)
+		goto error1;
+	error = xfs_finish_flags(vfsp, args, mp);
+	if (error)
+		goto error2;
+
+	/*
+	 * Setup xfs_mount buffer target pointers based on superblock
+	 */
+	error = xfs_setsize_buftarg(mp->m_ddev_targp, mp->m_sb.sb_blocksize,
+				    mp->m_sb.sb_sectsize);
+	if (!error && logdev && logdev != ddev) {
+		unsigned int	log_sector_size = BBSIZE;
+
+		if (XFS_SB_VERSION_HASSECTOR(&mp->m_sb))
+			log_sector_size = mp->m_sb.sb_logsectsize;
+		error = xfs_setsize_buftarg(mp->m_logdev_targp,
+					    mp->m_sb.sb_blocksize,
+					    log_sector_size);
+	}
+	if (!error && rtdev)
+		error = xfs_setsize_buftarg(mp->m_rtdev_targp,
+					    mp->m_sb.sb_blocksize,
+					    mp->m_sb.sb_sectsize);
+	if (error)
+		goto error2;
+
+	error = XFS_IOINIT(vfsp, args, flags);
+	if (!error)
+		return 0;
+error2:
+	if (mp->m_sb_bp)
+		xfs_freesb(mp);
+error1:
+	xfs_binval(mp->m_ddev_targp);
+	if (logdev && logdev != ddev)
+		xfs_binval(mp->m_logdev_targp);
+	if (rtdev)
+		xfs_binval(mp->m_rtdev_targp);
+error0:
+	xfs_unmountfs_close(mp, credp);
+	return error;
+}
+
+STATIC int
+xfs_unmount(
+	bhv_desc_t	*bdp,
+	int		flags,
+	cred_t		*credp)
+{
+	struct vfs	*vfsp = bhvtovfs(bdp);
+	xfs_mount_t	*mp = XFS_BHVTOM(bdp);
+	xfs_inode_t	*rip;
+	vnode_t		*rvp;
+	int		unmount_event_wanted = 0;
+	int		unmount_event_flags = 0;
+	int		xfs_unmountfs_needed = 0;
+	int		error;
+
+	rip = mp->m_rootip;
+	rvp = XFS_ITOV(rip);
+
+	if (vfsp->vfs_flag & VFS_DMI) {
+		error = XFS_SEND_PREUNMOUNT(mp, vfsp,
+				rvp, DM_RIGHT_NULL, rvp, DM_RIGHT_NULL,
+				NULL, NULL, 0, 0,
+				(mp->m_dmevmask & (1<<DM_EVENT_PREUNMOUNT))?
+					0:DM_FLAGS_UNWANTED);
+			if (error)
+				return XFS_ERROR(error);
+		unmount_event_wanted = 1;
+		unmount_event_flags = (mp->m_dmevmask & (1<<DM_EVENT_UNMOUNT))?
+					0 : DM_FLAGS_UNWANTED;
+	}
+
+	/*
+	 * First blow any referenced inode from this file system
+	 * out of the reference cache, and delete the timer.
+	 */
+	xfs_refcache_purge_mp(mp);
+
+	XFS_bflush(mp->m_ddev_targp);
+	error = xfs_unmount_flush(mp, 0);
+	if (error)
+		goto out;
+
+	ASSERT(vn_count(rvp) == 1);
+
+	/*
+	 * Drop the reference count
+	 */
+	VN_RELE(rvp);
+
+	/*
+	 * If we're forcing a shutdown, typically because of a media error,
+	 * we want to make sure we invalidate dirty pages that belong to
+	 * referenced vnodes as well.
+	 */
+	if (XFS_FORCED_SHUTDOWN(mp)) {
+		error = xfs_sync(&mp->m_bhv,
+			 (SYNC_WAIT | SYNC_CLOSE), credp);
+		ASSERT(error != EFSCORRUPTED);
+	}
+	xfs_unmountfs_needed = 1;
+
+out:
+	/*	Send DMAPI event, if required.
+	 *	Then do xfs_unmountfs() if needed.
+	 *	Then return error (or zero).
+	 */
+	if (unmount_event_wanted) {
+		/* Note: mp structure must still exist for
+		 * XFS_SEND_UNMOUNT() call.
+		 */
+		XFS_SEND_UNMOUNT(mp, vfsp, error == 0 ? rvp : NULL,
+			DM_RIGHT_NULL, 0, error, unmount_event_flags);
+	}
+	if (xfs_unmountfs_needed) {
+		/*
+		 * Call common unmount function to flush to disk
+		 * and free the super block buffer & mount structures.
+		 */
+		xfs_unmountfs(mp, credp);
+	}
+
+	return XFS_ERROR(error);
+}
+
+#define REMOUNT_READONLY_FLAGS	(SYNC_REMOUNT|SYNC_ATTR|SYNC_WAIT)
+
+STATIC int
+xfs_mntupdate(
+	bhv_desc_t			*bdp,
+	int				*flags,
+	struct xfs_mount_args		*args)
+{
+	struct vfs	*vfsp = bhvtovfs(bdp);
+	xfs_mount_t	*mp = XFS_BHVTOM(bdp);
+	int		pincount, error;
+	int		count = 0;
+
+	if (args->flags & XFSMNT_NOATIME)
+		mp->m_flags |= XFS_MOUNT_NOATIME;
+	else
+		mp->m_flags &= ~XFS_MOUNT_NOATIME;
+
+	if (!(vfsp->vfs_flag & VFS_RDONLY)) {
+		VFS_SYNC(vfsp, SYNC_FSDATA|SYNC_BDFLUSH|SYNC_ATTR, NULL, error);
+	}
+
+	if (*flags & MS_RDONLY) {
+		xfs_refcache_purge_mp(mp);
+		xfs_flush_buftarg(mp->m_ddev_targp, 0);
+		xfs_finish_reclaim_all(mp, 0);
+
+		/* This loop must run at least twice.
+		 * The first instance of the loop will flush
+		 * most meta data but that will generate more
+		 * meta data (typically directory updates).
+		 * Which then must be flushed and logged before
+		 * we can write the unmount record.
+		 */ 
+		do {
+			VFS_SYNC(vfsp, REMOUNT_READONLY_FLAGS, NULL, error);
+			pincount = xfs_flush_buftarg(mp->m_ddev_targp, 1);
+			if (!pincount) {
+				delay(50);
+				count++;
+			}
+		} while (count < 2);
+
+		/* Ok now write out an unmount record */
+		xfs_log_unmount_write(mp);
+		xfs_unmountfs_writesb(mp);
+		vfsp->vfs_flag |= VFS_RDONLY;
+	} else {
+		vfsp->vfs_flag &= ~VFS_RDONLY;
+	}
+
+	return 0;
+}
+
+/*
+ * xfs_unmount_flush implements a set of flush operation on special
+ * inodes, which are needed as a separate set of operations so that
+ * they can be called as part of relocation process.
+ */
+int
+xfs_unmount_flush(
+	xfs_mount_t	*mp,		/* Mount structure we are getting
+					   rid of. */
+	int             relocation)	/* Called from vfs relocation. */
+{
+	xfs_inode_t	*rip = mp->m_rootip;
+	xfs_inode_t	*rbmip;
+	xfs_inode_t	*rsumip = NULL;
+	vnode_t		*rvp = XFS_ITOV(rip);
+	int		error;
+
+	xfs_ilock(rip, XFS_ILOCK_EXCL);
+	xfs_iflock(rip);
+
+	/*
+	 * Flush out the real time inodes.
+	 */
+	if ((rbmip = mp->m_rbmip) != NULL) {
+		xfs_ilock(rbmip, XFS_ILOCK_EXCL);
+		xfs_iflock(rbmip);
+		error = xfs_iflush(rbmip, XFS_IFLUSH_SYNC);
+		xfs_iunlock(rbmip, XFS_ILOCK_EXCL);
+
+		if (error == EFSCORRUPTED)
+			goto fscorrupt_out;
+
+		ASSERT(vn_count(XFS_ITOV(rbmip)) == 1);
+
+		rsumip = mp->m_rsumip;
+		xfs_ilock(rsumip, XFS_ILOCK_EXCL);
+		xfs_iflock(rsumip);
+		error = xfs_iflush(rsumip, XFS_IFLUSH_SYNC);
+		xfs_iunlock(rsumip, XFS_ILOCK_EXCL);
+
+		if (error == EFSCORRUPTED)
+			goto fscorrupt_out;
+
+		ASSERT(vn_count(XFS_ITOV(rsumip)) == 1);
+	}
+
+	/*
+	 * Synchronously flush root inode to disk
+	 */
+	error = xfs_iflush(rip, XFS_IFLUSH_SYNC);
+	if (error == EFSCORRUPTED)
+		goto fscorrupt_out2;
+
+	if (vn_count(rvp) != 1 && !relocation) {
+		xfs_iunlock(rip, XFS_ILOCK_EXCL);
+		return XFS_ERROR(EBUSY);
+	}
+
+	/*
+	 * Release dquot that rootinode, rbmino and rsumino might be holding,
+	 * flush and purge the quota inodes.
+	 */
+	error = XFS_QM_UNMOUNT(mp);
+	if (error == EFSCORRUPTED)
+		goto fscorrupt_out2;
+
+	if (rbmip) {
+		VN_RELE(XFS_ITOV(rbmip));
+		VN_RELE(XFS_ITOV(rsumip));
+	}
+
+	xfs_iunlock(rip, XFS_ILOCK_EXCL);
+	return 0;
+
+fscorrupt_out:
+	xfs_ifunlock(rip);
+
+fscorrupt_out2:
+	xfs_iunlock(rip, XFS_ILOCK_EXCL);
+
+	return XFS_ERROR(EFSCORRUPTED);
+}
+
+/*
+ * xfs_root extracts the root vnode from a vfs.
+ *
+ * vfsp -- the vfs struct for the desired file system
+ * vpp  -- address of the caller's vnode pointer which should be
+ *         set to the desired fs root vnode
+ */
+STATIC int
+xfs_root(
+	bhv_desc_t	*bdp,
+	vnode_t		**vpp)
+{
+	vnode_t		*vp;
+
+	vp = XFS_ITOV((XFS_BHVTOM(bdp))->m_rootip);
+	VN_HOLD(vp);
+	*vpp = vp;
+	return 0;
+}
+
+/*
+ * xfs_statvfs
+ *
+ * Fill in the statvfs structure for the given file system.  We use
+ * the superblock lock in the mount structure to ensure a consistent
+ * snapshot of the counters returned.
+ */
+STATIC int
+xfs_statvfs(
+	bhv_desc_t	*bdp,
+	xfs_statfs_t	*statp,
+	vnode_t		*vp)
+{
+	__uint64_t	fakeinos;
+	xfs_extlen_t	lsize;
+	xfs_mount_t	*mp;
+	xfs_sb_t	*sbp;
+	unsigned long	s;
+
+	mp = XFS_BHVTOM(bdp);
+	sbp = &(mp->m_sb);
+
+	statp->f_type = XFS_SB_MAGIC;
+
+	s = XFS_SB_LOCK(mp);
+	statp->f_bsize = sbp->sb_blocksize;
+	lsize = sbp->sb_logstart ? sbp->sb_logblocks : 0;
+	statp->f_blocks = sbp->sb_dblocks - lsize;
+	statp->f_bfree = statp->f_bavail = sbp->sb_fdblocks;
+	fakeinos = statp->f_bfree << sbp->sb_inopblog;
+#if XFS_BIG_INUMS
+	fakeinos += mp->m_inoadd;
+#endif
+	statp->f_files =
+	    MIN(sbp->sb_icount + fakeinos, (__uint64_t)XFS_MAXINUMBER);
+	if (mp->m_maxicount)
+#if XFS_BIG_INUMS
+		if (!mp->m_inoadd)
+#endif
+			statp->f_files = min_t(typeof(statp->f_files),
+						statp->f_files,
+						mp->m_maxicount);
+	statp->f_ffree = statp->f_files - (sbp->sb_icount - sbp->sb_ifree);
+	XFS_SB_UNLOCK(mp, s);
+
+	statp->f_fsid.val[0] = mp->m_dev;
+	statp->f_fsid.val[1] = 0;
+	statp->f_namelen = MAXNAMELEN - 1;
+
+	return 0;
+}
+
+
+/*
+ * xfs_sync flushes any pending I/O to file system vfsp.
+ *
+ * This routine is called by vfs_sync() to make sure that things make it
+ * out to disk eventually, on sync() system calls to flush out everything,
+ * and when the file system is unmounted.  For the vfs_sync() case, all
+ * we really need to do is sync out the log to make all of our meta-data
+ * updates permanent (except for timestamps).  For calls from pflushd(),
+ * dirty pages are kept moving by calling pdflush() on the inodes
+ * containing them.  We also flush the inodes that we can lock without
+ * sleeping and the superblock if we can lock it without sleeping from
+ * vfs_sync() so that items at the tail of the log are always moving out.
+ *
+ * Flags:
+ *      SYNC_BDFLUSH - We're being called from vfs_sync() so we don't want
+ *		       to sleep if we can help it.  All we really need
+ *		       to do is ensure that the log is synced at least
+ *		       periodically.  We also push the inodes and
+ *		       superblock if we can lock them without sleeping
+ *			and they are not pinned.
+ *      SYNC_ATTR    - We need to flush the inodes.  If SYNC_BDFLUSH is not
+ *		       set, then we really want to lock each inode and flush
+ *		       it.
+ *      SYNC_WAIT    - All the flushes that take place in this call should
+ *		       be synchronous.
+ *      SYNC_DELWRI  - This tells us to push dirty pages associated with
+ *		       inodes.  SYNC_WAIT and SYNC_BDFLUSH are used to
+ *		       determine if they should be flushed sync, async, or
+ *		       delwri.
+ *      SYNC_CLOSE   - This flag is passed when the system is being
+ *		       unmounted.  We should sync and invalidate everthing.
+ *      SYNC_FSDATA  - This indicates that the caller would like to make
+ *		       sure the superblock is safe on disk.  We can ensure
+ *		       this by simply makeing sure the log gets flushed
+ *		       if SYNC_BDFLUSH is set, and by actually writing it
+ *		       out otherwise.
+ *
+ */
+/*ARGSUSED*/
+STATIC int
+xfs_sync(
+	bhv_desc_t	*bdp,
+	int		flags,
+	cred_t		*credp)
+{
+	xfs_mount_t	*mp;
+
+	mp = XFS_BHVTOM(bdp);
+	return (xfs_syncsub(mp, flags, 0, NULL));
+}
+
+/*
+ * xfs sync routine for internal use
+ *
+ * This routine supports all of the flags defined for the generic VFS_SYNC
+ * interface as explained above under xfs_sync.  In the interests of not
+ * changing interfaces within the 6.5 family, additional internallly-
+ * required functions are specified within a separate xflags parameter,
+ * only available by calling this routine.
+ *
+ */
+STATIC int
+xfs_sync_inodes(
+	xfs_mount_t	*mp,
+	int		flags,
+	int             xflags,
+	int             *bypassed)
+{
+	xfs_inode_t	*ip = NULL;
+	xfs_inode_t	*ip_next;
+	xfs_buf_t	*bp;
+	vnode_t		*vp = NULL;
+	vmap_t		vmap;
+	int		error;
+	int		last_error;
+	uint64_t	fflag;
+	uint		lock_flags;
+	uint		base_lock_flags;
+	boolean_t	mount_locked;
+	boolean_t	vnode_refed;
+	int		preempt;
+	xfs_dinode_t	*dip;
+	xfs_iptr_t	*ipointer;
+#ifdef DEBUG
+	boolean_t	ipointer_in = B_FALSE;
+
+#define IPOINTER_SET	ipointer_in = B_TRUE
+#define IPOINTER_CLR	ipointer_in = B_FALSE
+#else
+#define IPOINTER_SET
+#define IPOINTER_CLR
+#endif
+
+
+/* Insert a marker record into the inode list after inode ip. The list
+ * must be locked when this is called. After the call the list will no
+ * longer be locked.
+ */
+#define IPOINTER_INSERT(ip, mp)	{ \
+		ASSERT(ipointer_in == B_FALSE); \
+		ipointer->ip_mnext = ip->i_mnext; \
+		ipointer->ip_mprev = ip; \
+		ip->i_mnext = (xfs_inode_t *)ipointer; \
+		ipointer->ip_mnext->i_mprev = (xfs_inode_t *)ipointer; \
+		preempt = 0; \
+		XFS_MOUNT_IUNLOCK(mp); \
+		mount_locked = B_FALSE; \
+		IPOINTER_SET; \
+	}
+
+/* Remove the marker from the inode list. If the marker was the only item
+ * in the list then there are no remaining inodes and we should zero out
+ * the whole list. If we are the current head of the list then move the head
+ * past us.
+ */
+#define IPOINTER_REMOVE(ip, mp)	{ \
+		ASSERT(ipointer_in == B_TRUE); \
+		if (ipointer->ip_mnext != (xfs_inode_t *)ipointer) { \
+			ip = ipointer->ip_mnext; \
+			ip->i_mprev = ipointer->ip_mprev; \
+			ipointer->ip_mprev->i_mnext = ip; \
+			if (mp->m_inodes == (xfs_inode_t *)ipointer) { \
+				mp->m_inodes = ip; \
+			} \
+		} else { \
+			ASSERT(mp->m_inodes == (xfs_inode_t *)ipointer); \
+			mp->m_inodes = NULL; \
+			ip = NULL; \
+		} \
+		IPOINTER_CLR; \
+	}
+
+#define XFS_PREEMPT_MASK	0x7f
+
+	if (bypassed)
+		*bypassed = 0;
+	if (XFS_MTOVFS(mp)->vfs_flag & VFS_RDONLY)
+		return 0;
+	error = 0;
+	last_error = 0;
+	preempt = 0;
+
+	/* Allocate a reference marker */
+	ipointer = (xfs_iptr_t *)kmem_zalloc(sizeof(xfs_iptr_t), KM_SLEEP);
+
+	fflag = XFS_B_ASYNC;		/* default is don't wait */
+	if (flags & SYNC_BDFLUSH)
+		fflag = XFS_B_DELWRI;
+	if (flags & SYNC_WAIT)
+		fflag = 0;		/* synchronous overrides all */
+
+	base_lock_flags = XFS_ILOCK_SHARED;
+	if (flags & (SYNC_DELWRI | SYNC_CLOSE)) {
+		/*
+		 * We need the I/O lock if we're going to call any of
+		 * the flush/inval routines.
+		 */
+		base_lock_flags |= XFS_IOLOCK_SHARED;
+	}
+
+	XFS_MOUNT_ILOCK(mp);
+
+	ip = mp->m_inodes;
+
+	mount_locked = B_TRUE;
+	vnode_refed  = B_FALSE;
+
+	IPOINTER_CLR;
+
+	do {
+		ASSERT(ipointer_in == B_FALSE);
+		ASSERT(vnode_refed == B_FALSE);
+
+		lock_flags = base_lock_flags;
+
+		/*
+		 * There were no inodes in the list, just break out
+		 * of the loop.
+		 */
+		if (ip == NULL) {
+			break;
+		}
+
+		/*
+		 * We found another sync thread marker - skip it
+		 */
+		if (ip->i_mount == NULL) {
+			ip = ip->i_mnext;
+			continue;
+		}
+
+		vp = XFS_ITOV_NULL(ip);
+
+		/*
+		 * If the vnode is gone then this is being torn down,
+		 * call reclaim if it is flushed, else let regular flush
+		 * code deal with it later in the loop.
+		 */
+
+		if (vp == NULL) {
+			/* Skip ones already in reclaim */
+			if (ip->i_flags & XFS_IRECLAIM) {
+				ip = ip->i_mnext;
+				continue;
+			}
+			if (xfs_ilock_nowait(ip, XFS_ILOCK_EXCL) == 0) {
+				ip = ip->i_mnext;
+			} else if ((xfs_ipincount(ip) == 0) &&
+				    xfs_iflock_nowait(ip)) {
+				IPOINTER_INSERT(ip, mp);
+
+				xfs_finish_reclaim(ip, 1,
+						XFS_IFLUSH_DELWRI_ELSE_ASYNC);
+
+				XFS_MOUNT_ILOCK(mp);
+				mount_locked = B_TRUE;
+				IPOINTER_REMOVE(ip, mp);
+			} else {
+				xfs_iunlock(ip, XFS_ILOCK_EXCL);
+				ip = ip->i_mnext;
+			}
+			continue;
+		}
+
+		if (VN_BAD(vp)) {
+			ip = ip->i_mnext;
+			continue;
+		}
+
+		if (XFS_FORCED_SHUTDOWN(mp) && !(flags & SYNC_CLOSE)) {
+			XFS_MOUNT_IUNLOCK(mp);
+			kmem_free(ipointer, sizeof(xfs_iptr_t));
+			return 0;
+		}
+
+		/*
+		 * If this is just vfs_sync() or pflushd() calling
+		 * then we can skip inodes for which it looks like
+		 * there is nothing to do.  Since we don't have the
+		 * inode locked this is racey, but these are periodic
+		 * calls so it doesn't matter.  For the others we want
+		 * to know for sure, so we at least try to lock them.
+		 */
+		if (flags & SYNC_BDFLUSH) {
+			if (((ip->i_itemp == NULL) ||
+			     !(ip->i_itemp->ili_format.ilf_fields &
+			       XFS_ILOG_ALL)) &&
+			    (ip->i_update_core == 0)) {
+				ip = ip->i_mnext;
+				continue;
+			}
+		}
+
+		/*
+		 * Try to lock without sleeping.  We're out of order with
+		 * the inode list lock here, so if we fail we need to drop
+		 * the mount lock and try again.  If we're called from
+		 * bdflush() here, then don't bother.
+		 *
+		 * The inode lock here actually coordinates with the
+		 * almost spurious inode lock in xfs_ireclaim() to prevent
+		 * the vnode we handle here without a reference from
+		 * being freed while we reference it.  If we lock the inode
+		 * while it's on the mount list here, then the spurious inode
+		 * lock in xfs_ireclaim() after the inode is pulled from
+		 * the mount list will sleep until we release it here.
+		 * This keeps the vnode from being freed while we reference
+		 * it.  It is also cheaper and simpler than actually doing
+		 * a vn_get() for every inode we touch here.
+		 */
+		if (xfs_ilock_nowait(ip, lock_flags) == 0) {
+
+			if ((flags & SYNC_BDFLUSH) || (vp == NULL)) {
+				ip = ip->i_mnext;
+				continue;
+			}
+
+			/*
+			 * We need to unlock the inode list lock in order
+			 * to lock the inode. Insert a marker record into
+			 * the inode list to remember our position, dropping
+			 * the lock is now done inside the IPOINTER_INSERT
+			 * macro.
+			 *
+			 * We also use the inode list lock to protect us
+			 * in taking a snapshot of the vnode version number
+			 * for use in calling vn_get().
+			 */
+			VMAP(vp, vmap);
+			IPOINTER_INSERT(ip, mp);
+
+			vp = vn_get(vp, &vmap);
+			if (vp == NULL) {
+				/*
+				 * The vnode was reclaimed once we let go
+				 * of the inode list lock.  Skip to the
+				 * next list entry. Remove the marker.
+				 */
+
+				XFS_MOUNT_ILOCK(mp);
+
+				mount_locked = B_TRUE;
+				vnode_refed  = B_FALSE;
+
+				IPOINTER_REMOVE(ip, mp);
+
+				continue;
+			}
+
+			xfs_ilock(ip, lock_flags);
+
+			ASSERT(vp == XFS_ITOV(ip));
+			ASSERT(ip->i_mount == mp);
+
+			vnode_refed = B_TRUE;
+		}
+
+		/* From here on in the loop we may have a marker record
+		 * in the inode list.
+		 */
+
+		if ((flags & SYNC_CLOSE)  && (vp != NULL)) {
+			/*
+			 * This is the shutdown case.  We just need to
+			 * flush and invalidate all the pages associated
+			 * with the inode.  Drop the inode lock since
+			 * we can't hold it across calls to the buffer
+			 * cache.
+			 *
+			 * We don't set the VREMAPPING bit in the vnode
+			 * here, because we don't hold the vnode lock
+			 * exclusively.  It doesn't really matter, though,
+			 * because we only come here when we're shutting
+			 * down anyway.
+			 */
+			xfs_iunlock(ip, XFS_ILOCK_SHARED);
+
+			if (XFS_FORCED_SHUTDOWN(mp)) {
+				VOP_TOSS_PAGES(vp, 0, -1, FI_REMAPF);
+			} else {
+				VOP_FLUSHINVAL_PAGES(vp, 0, -1, FI_REMAPF);
+			}
+
+			xfs_ilock(ip, XFS_ILOCK_SHARED);
+
+		} else if ((flags & SYNC_DELWRI) && (vp != NULL)) {
+			if (VN_DIRTY(vp)) {
+				/* We need to have dropped the lock here,
+				 * so insert a marker if we have not already
+				 * done so.
+				 */
+				if (mount_locked) {
+					IPOINTER_INSERT(ip, mp);
+				}
+
+				/*
+				 * Drop the inode lock since we can't hold it
+				 * across calls to the buffer cache.
+				 */
+				xfs_iunlock(ip, XFS_ILOCK_SHARED);
+				VOP_FLUSH_PAGES(vp, (xfs_off_t)0, -1,
+							fflag, FI_NONE, error);
+				xfs_ilock(ip, XFS_ILOCK_SHARED);
+			}
+
+		}
+
+		if (flags & SYNC_BDFLUSH) {
+			if ((flags & SYNC_ATTR) &&
+			    ((ip->i_update_core) ||
+			     ((ip->i_itemp != NULL) &&
+			      (ip->i_itemp->ili_format.ilf_fields != 0)))) {
+
+				/* Insert marker and drop lock if not already
+				 * done.
+				 */
+				if (mount_locked) {
+					IPOINTER_INSERT(ip, mp);
+				}
+
+				/*
+				 * We don't want the periodic flushing of the
+				 * inodes by vfs_sync() to interfere with
+				 * I/O to the file, especially read I/O
+				 * where it is only the access time stamp
+				 * that is being flushed out.  To prevent
+				 * long periods where we have both inode
+				 * locks held shared here while reading the
+				 * inode's buffer in from disk, we drop the
+				 * inode lock while reading in the inode
+				 * buffer.  We have to release the buffer
+				 * and reacquire the inode lock so that they
+				 * are acquired in the proper order (inode
+				 * locks first).  The buffer will go at the
+				 * end of the lru chain, though, so we can
+				 * expect it to still be there when we go
+				 * for it again in xfs_iflush().
+				 */
+				if ((xfs_ipincount(ip) == 0) &&
+				    xfs_iflock_nowait(ip)) {
+
+					xfs_ifunlock(ip);
+					xfs_iunlock(ip, XFS_ILOCK_SHARED);
+
+					error = xfs_itobp(mp, NULL, ip,
+							  &dip, &bp, 0);
+					if (!error) {
+						xfs_buf_relse(bp);
+					} else {
+						/* Bailing out, remove the
+						 * marker and free it.
+						 */
+						XFS_MOUNT_ILOCK(mp);
+
+						IPOINTER_REMOVE(ip, mp);
+
+						XFS_MOUNT_IUNLOCK(mp);
+
+						ASSERT(!(lock_flags &
+							XFS_IOLOCK_SHARED));
+
+						kmem_free(ipointer,
+							sizeof(xfs_iptr_t));
+						return (0);
+					}
+
+					/*
+					 * Since we dropped the inode lock,
+					 * the inode may have been reclaimed.
+					 * Therefore, we reacquire the mount
+					 * lock and check to see if we were the
+					 * inode reclaimed. If this happened
+					 * then the ipointer marker will no
+					 * longer point back at us. In this
+					 * case, move ip along to the inode
+					 * after the marker, remove the marker
+					 * and continue.
+					 */
+					XFS_MOUNT_ILOCK(mp);
+					mount_locked = B_TRUE;
+
+					if (ip != ipointer->ip_mprev) {
+						IPOINTER_REMOVE(ip, mp);
+
+						ASSERT(!vnode_refed);
+						ASSERT(!(lock_flags &
+							XFS_IOLOCK_SHARED));
+						continue;
+					}
+
+					ASSERT(ip->i_mount == mp);
+
+					if (xfs_ilock_nowait(ip,
+						    XFS_ILOCK_SHARED) == 0) {
+						ASSERT(ip->i_mount == mp);
+						/*
+						 * We failed to reacquire
+						 * the inode lock without
+						 * sleeping, so just skip
+						 * the inode for now.  We
+						 * clear the ILOCK bit from
+						 * the lock_flags so that we
+						 * won't try to drop a lock
+						 * we don't hold below.
+						 */
+						lock_flags &= ~XFS_ILOCK_SHARED;
+						IPOINTER_REMOVE(ip_next, mp);
+					} else if ((xfs_ipincount(ip) == 0) &&
+						   xfs_iflock_nowait(ip)) {
+						ASSERT(ip->i_mount == mp);
+						/*
+						 * Since this is vfs_sync()
+						 * calling we only flush the
+						 * inode out if we can lock
+						 * it without sleeping and
+						 * it is not pinned.  Drop
+						 * the mount lock here so
+						 * that we don't hold it for
+						 * too long. We already have
+						 * a marker in the list here.
+						 */
+						XFS_MOUNT_IUNLOCK(mp);
+						mount_locked = B_FALSE;
+						error = xfs_iflush(ip,
+							   XFS_IFLUSH_DELWRI);
+					} else {
+						ASSERT(ip->i_mount == mp);
+						IPOINTER_REMOVE(ip_next, mp);
+					}
+				}
+
+			}
+
+		} else {
+			if ((flags & SYNC_ATTR) &&
+			    ((ip->i_update_core) ||
+			     ((ip->i_itemp != NULL) &&
+			      (ip->i_itemp->ili_format.ilf_fields != 0)))) {
+				if (mount_locked) {
+					IPOINTER_INSERT(ip, mp);
+				}
+
+				if (flags & SYNC_WAIT) {
+					xfs_iflock(ip);
+					error = xfs_iflush(ip,
+							   XFS_IFLUSH_SYNC);
+				} else {
+					/*
+					 * If we can't acquire the flush
+					 * lock, then the inode is already
+					 * being flushed so don't bother
+					 * waiting.  If we can lock it then
+					 * do a delwri flush so we can
+					 * combine multiple inode flushes
+					 * in each disk write.
+					 */
+					if (xfs_iflock_nowait(ip)) {
+						error = xfs_iflush(ip,
+							   XFS_IFLUSH_DELWRI);
+					}
+					else if (bypassed)
+						(*bypassed)++;
+				}
+			}
+		}
+
+		if (lock_flags != 0) {
+			xfs_iunlock(ip, lock_flags);
+		}
+
+		if (vnode_refed) {
+			/*
+			 * If we had to take a reference on the vnode
+			 * above, then wait until after we've unlocked
+			 * the inode to release the reference.  This is
+			 * because we can be already holding the inode
+			 * lock when VN_RELE() calls xfs_inactive().
+			 *
+			 * Make sure to drop the mount lock before calling
+			 * VN_RELE() so that we don't trip over ourselves if
+			 * we have to go for the mount lock again in the
+			 * inactive code.
+			 */
+			if (mount_locked) {
+				IPOINTER_INSERT(ip, mp);
+			}
+
+			VN_RELE(vp);
+
+			vnode_refed = B_FALSE;
+		}
+
+		if (error) {
+			last_error = error;
+		}
+
+		/*
+		 * bail out if the filesystem is corrupted.
+		 */
+		if (error == EFSCORRUPTED)  {
+			if (!mount_locked) {
+				XFS_MOUNT_ILOCK(mp);
+				IPOINTER_REMOVE(ip, mp);
+			}
+			XFS_MOUNT_IUNLOCK(mp);
+			ASSERT(ipointer_in == B_FALSE);
+			kmem_free(ipointer, sizeof(xfs_iptr_t));
+			return XFS_ERROR(error);
+		}
+
+		/* Let other threads have a chance at the mount lock
+		 * if we have looped many times without dropping the
+		 * lock.
+		 */
+		if ((++preempt & XFS_PREEMPT_MASK) == 0) {
+			if (mount_locked) {
+				IPOINTER_INSERT(ip, mp);
+			}
+		}
+
+		if (mount_locked == B_FALSE) {
+			XFS_MOUNT_ILOCK(mp);
+			mount_locked = B_TRUE;
+			IPOINTER_REMOVE(ip, mp);
+			continue;
+		}
+
+		ASSERT(ipointer_in == B_FALSE);
+		ip = ip->i_mnext;
+
+	} while (ip != mp->m_inodes);
+
+	XFS_MOUNT_IUNLOCK(mp);
+
+	ASSERT(ipointer_in == B_FALSE);
+
+	kmem_free(ipointer, sizeof(xfs_iptr_t));
+	return XFS_ERROR(last_error);
+}
+
+/*
+ * xfs sync routine for internal use
+ *
+ * This routine supports all of the flags defined for the generic VFS_SYNC
+ * interface as explained above under xfs_sync.  In the interests of not
+ * changing interfaces within the 6.5 family, additional internallly-
+ * required functions are specified within a separate xflags parameter,
+ * only available by calling this routine.
+ *
+ */
+int
+xfs_syncsub(
+	xfs_mount_t	*mp,
+	int		flags,
+	int             xflags,
+	int             *bypassed)
+{
+	int		error = 0;
+	int		last_error = 0;
+	uint		log_flags = XFS_LOG_FORCE;
+	xfs_buf_t	*bp;
+	xfs_buf_log_item_t	*bip;
+
+	/*
+	 * Sync out the log.  This ensures that the log is periodically
+	 * flushed even if there is not enough activity to fill it up.
+	 */
+	if (flags & SYNC_WAIT)
+		log_flags |= XFS_LOG_SYNC;
+
+	xfs_log_force(mp, (xfs_lsn_t)0, log_flags);
+
+	if (flags & (SYNC_ATTR|SYNC_DELWRI)) {
+		if (flags & SYNC_BDFLUSH)
+			xfs_finish_reclaim_all(mp, 1);
+		else
+			error = xfs_sync_inodes(mp, flags, xflags, bypassed);
+	}
+
+	/*
+	 * Flushing out dirty data above probably generated more
+	 * log activity, so if this isn't vfs_sync() then flush
+	 * the log again.
+	 */
+	if (flags & SYNC_DELWRI) {
+		xfs_log_force(mp, (xfs_lsn_t)0, log_flags);
+	}
+
+	if (flags & SYNC_FSDATA) {
+		/*
+		 * If this is vfs_sync() then only sync the superblock
+		 * if we can lock it without sleeping and it is not pinned.
+		 */
+		if (flags & SYNC_BDFLUSH) {
+			bp = xfs_getsb(mp, XFS_BUF_TRYLOCK);
+			if (bp != NULL) {
+				bip = XFS_BUF_FSPRIVATE(bp,xfs_buf_log_item_t*);
+				if ((bip != NULL) &&
+				    xfs_buf_item_dirty(bip)) {
+					if (!(XFS_BUF_ISPINNED(bp))) {
+						XFS_BUF_ASYNC(bp);
+						error = xfs_bwrite(mp, bp);
+					} else {
+						xfs_buf_relse(bp);
+					}
+				} else {
+					xfs_buf_relse(bp);
+				}
+			}
+		} else {
+			bp = xfs_getsb(mp, 0);
+			/*
+			 * If the buffer is pinned then push on the log so
+			 * we won't get stuck waiting in the write for
+			 * someone, maybe ourselves, to flush the log.
+			 * Even though we just pushed the log above, we
+			 * did not have the superblock buffer locked at
+			 * that point so it can become pinned in between
+			 * there and here.
+			 */
+			if (XFS_BUF_ISPINNED(bp))
+				xfs_log_force(mp, (xfs_lsn_t)0, XFS_LOG_FORCE);
+			if (flags & SYNC_WAIT)
+				XFS_BUF_UNASYNC(bp);
+			else
+				XFS_BUF_ASYNC(bp);
+			error = xfs_bwrite(mp, bp);
+		}
+		if (error) {
+			last_error = error;
+		}
+	}
+
+	/*
+	 * If this is the periodic sync, then kick some entries out of
+	 * the reference cache.  This ensures that idle entries are
+	 * eventually kicked out of the cache.
+	 */
+	if (flags & SYNC_REFCACHE) {
+		if (flags & SYNC_WAIT)
+			xfs_refcache_purge_mp(mp);
+		else
+			xfs_refcache_purge_some(mp);
+	}
+
+	/*
+	 * Now check to see if the log needs a "dummy" transaction.
+	 */
+
+	if (!(flags & SYNC_REMOUNT) && xfs_log_need_covered(mp)) {
+		xfs_trans_t *tp;
+		xfs_inode_t *ip;
+
+		/*
+		 * Put a dummy transaction in the log to tell
+		 * recovery that all others are OK.
+		 */
+		tp = xfs_trans_alloc(mp, XFS_TRANS_DUMMY1);
+		if ((error = xfs_trans_reserve(tp, 0,
+				XFS_ICHANGE_LOG_RES(mp),
+				0, 0, 0)))  {
+			xfs_trans_cancel(tp, 0);
+			return error;
+		}
+
+		ip = mp->m_rootip;
+		xfs_ilock(ip, XFS_ILOCK_EXCL);
+
+		xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+		xfs_trans_ihold(tp, ip);
+		xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+		error = xfs_trans_commit(tp, 0, NULL);
+		xfs_iunlock(ip, XFS_ILOCK_EXCL);
+		xfs_log_force(mp, (xfs_lsn_t)0, log_flags);
+	}
+
+	/*
+	 * When shutting down, we need to insure that the AIL is pushed
+	 * to disk or the filesystem can appear corrupt from the PROM.
+	 */
+	if ((flags & (SYNC_CLOSE|SYNC_WAIT)) == (SYNC_CLOSE|SYNC_WAIT)) {
+		XFS_bflush(mp->m_ddev_targp);
+		if (mp->m_rtdev_targp) {
+			XFS_bflush(mp->m_rtdev_targp);
+		}
+	}
+
+	return XFS_ERROR(last_error);
+}
+
+/*
+ * xfs_vget - called by DMAPI and NFSD to get vnode from file handle
+ */
+STATIC int
+xfs_vget(
+	bhv_desc_t	*bdp,
+	vnode_t		**vpp,
+	fid_t		*fidp)
+{
+	xfs_mount_t	*mp = XFS_BHVTOM(bdp);
+	xfs_fid_t	*xfid = (struct xfs_fid *)fidp;
+	xfs_inode_t	*ip;
+	int		error;
+	xfs_ino_t	ino;
+	unsigned int	igen;
+
+	/*
+	 * Invalid.  Since handles can be created in user space and passed in
+	 * via gethandle(), this is not cause for a panic.
+	 */
+	if (xfid->xfs_fid_len != sizeof(*xfid) - sizeof(xfid->xfs_fid_len))
+		return XFS_ERROR(EINVAL);
+
+	ino  = xfid->xfs_fid_ino;
+	igen = xfid->xfs_fid_gen;
+
+	/*
+	 * NFS can sometimes send requests for ino 0.  Fail them gracefully.
+	 */
+	if (ino == 0)
+		return XFS_ERROR(ESTALE);
+
+	error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_SHARED, &ip, 0);
+	if (error) {
+		*vpp = NULL;
+		return error;
+	}
+
+	if (ip == NULL) {
+		*vpp = NULL;
+		return XFS_ERROR(EIO);
+	}
+
+	if (ip->i_d.di_mode == 0 || ip->i_d.di_gen != igen) {
+		xfs_iput_new(ip, XFS_ILOCK_SHARED);
+		*vpp = NULL;
+		return XFS_ERROR(ENOENT);
+	}
+
+	*vpp = XFS_ITOV(ip);
+	xfs_iunlock(ip, XFS_ILOCK_SHARED);
+	return 0;
+}
+
+
+#define MNTOPT_LOGBUFS	"logbufs"	/* number of XFS log buffers */
+#define MNTOPT_LOGBSIZE	"logbsize"	/* size of XFS log buffers */
+#define MNTOPT_LOGDEV	"logdev"	/* log device */
+#define MNTOPT_RTDEV	"rtdev"		/* realtime I/O device */
+#define MNTOPT_BIOSIZE	"biosize"	/* log2 of preferred buffered io size */
+#define MNTOPT_WSYNC	"wsync"		/* safe-mode nfs compatible mount */
+#define MNTOPT_INO64	"ino64"		/* force inodes into 64-bit range */
+#define MNTOPT_NOALIGN	"noalign"	/* turn off stripe alignment */
+#define MNTOPT_SWALLOC	"swalloc"	/* turn on stripe width allocation */
+#define MNTOPT_SUNIT	"sunit"		/* data volume stripe unit */
+#define MNTOPT_SWIDTH	"swidth"	/* data volume stripe width */
+#define MNTOPT_NOUUID	"nouuid"	/* ignore filesystem UUID */
+#define MNTOPT_MTPT	"mtpt"		/* filesystem mount point */
+#define MNTOPT_NORECOVERY   "norecovery"   /* don't run XFS recovery */
+#define MNTOPT_NOLOGFLUSH   "nologflush"   /* don't hard flush on log writes */
+#define MNTOPT_OSYNCISOSYNC "osyncisosync" /* o_sync is REALLY o_sync */
+#define MNTOPT_64BITINODE   "inode64"	/* inodes can be allocated anywhere */
+#define MNTOPT_IKEEP	"ikeep"		/* do not free empty inode clusters */
+#define MNTOPT_NOIKEEP	"noikeep"	/* free empty inode clusters */
+
+
+int
+xfs_parseargs(
+	struct bhv_desc		*bhv,
+	char			*options,
+	struct xfs_mount_args	*args,
+	int			update)
+{
+	struct vfs		*vfsp = bhvtovfs(bhv);
+	char			*this_char, *value, *eov;
+	int			dsunit, dswidth, vol_dsunit, vol_dswidth;
+	int			iosize;
+
+#if 0	/* XXX: off by default, until some remaining issues ironed out */
+	args->flags |= XFSMNT_IDELETE; /* default to on */
+#endif
+
+	if (!options)
+		return 0;
+
+	iosize = dsunit = dswidth = vol_dsunit = vol_dswidth = 0;
+
+	while ((this_char = strsep(&options, ",")) != NULL) {
+		if (!*this_char)
+			continue;
+		if ((value = strchr(this_char, '=')) != NULL)
+			*value++ = 0;
+
+		if (!strcmp(this_char, MNTOPT_LOGBUFS)) {
+			if (!value || !*value) {
+				printk("XFS: %s option requires an argument\n",
+					MNTOPT_LOGBUFS);
+				return EINVAL;
+			}
+			args->logbufs = simple_strtoul(value, &eov, 10);
+		} else if (!strcmp(this_char, MNTOPT_LOGBSIZE)) {
+			int	last, in_kilobytes = 0;
+
+			if (!value || !*value) {
+				printk("XFS: %s option requires an argument\n",
+					MNTOPT_LOGBSIZE);
+				return EINVAL;
+			}
+			last = strlen(value) - 1;
+			if (value[last] == 'K' || value[last] == 'k') {
+				in_kilobytes = 1;
+				value[last] = '\0';
+			}
+			args->logbufsize = simple_strtoul(value, &eov, 10);
+			if (in_kilobytes)
+				args->logbufsize <<= 10;
+		} else if (!strcmp(this_char, MNTOPT_LOGDEV)) {
+			if (!value || !*value) {
+				printk("XFS: %s option requires an argument\n",
+					MNTOPT_LOGDEV);
+				return EINVAL;
+			}
+			strncpy(args->logname, value, MAXNAMELEN);
+		} else if (!strcmp(this_char, MNTOPT_MTPT)) {
+			if (!value || !*value) {
+				printk("XFS: %s option requires an argument\n",
+					MNTOPT_MTPT);
+				return EINVAL;
+			}
+			strncpy(args->mtpt, value, MAXNAMELEN);
+		} else if (!strcmp(this_char, MNTOPT_RTDEV)) {
+			if (!value || !*value) {
+				printk("XFS: %s option requires an argument\n",
+					MNTOPT_RTDEV);
+				return EINVAL;
+			}
+			strncpy(args->rtname, value, MAXNAMELEN);
+		} else if (!strcmp(this_char, MNTOPT_BIOSIZE)) {
+			if (!value || !*value) {
+				printk("XFS: %s option requires an argument\n",
+					MNTOPT_BIOSIZE); 
+				return EINVAL;
+			}
+			iosize = simple_strtoul(value, &eov, 10);
+			args->flags |= XFSMNT_IOSIZE;
+			args->iosizelog = (uint8_t) iosize;
+		} else if (!strcmp(this_char, MNTOPT_WSYNC)) {
+			args->flags |= XFSMNT_WSYNC;
+		} else if (!strcmp(this_char, MNTOPT_OSYNCISOSYNC)) {
+			args->flags |= XFSMNT_OSYNCISOSYNC;
+		} else if (!strcmp(this_char, MNTOPT_NORECOVERY)) {
+			args->flags |= XFSMNT_NORECOVERY;
+		} else if (!strcmp(this_char, MNTOPT_INO64)) {
+			args->flags |= XFSMNT_INO64;
+#if !XFS_BIG_INUMS
+			printk("XFS: %s option not allowed on this system\n",
+				MNTOPT_INO64);
+			return EINVAL;
+#endif
+		} else if (!strcmp(this_char, MNTOPT_NOALIGN)) {
+			args->flags |= XFSMNT_NOALIGN;
+		} else if (!strcmp(this_char, MNTOPT_SWALLOC)) {
+			args->flags |= XFSMNT_SWALLOC;
+		} else if (!strcmp(this_char, MNTOPT_SUNIT)) {
+			if (!value || !*value) {
+				printk("XFS: %s option requires an argument\n",
+					MNTOPT_SUNIT);
+				return EINVAL;
+			}
+			dsunit = simple_strtoul(value, &eov, 10);
+		} else if (!strcmp(this_char, MNTOPT_SWIDTH)) {
+			if (!value || !*value) {
+				printk("XFS: %s option requires an argument\n",
+					MNTOPT_SWIDTH);
+				return EINVAL;
+			}
+			dswidth = simple_strtoul(value, &eov, 10);
+		} else if (!strcmp(this_char, MNTOPT_64BITINODE)) {
+			args->flags &= ~XFSMNT_32BITINODES;
+#if !XFS_BIG_INUMS
+			printk("XFS: %s option not allowed on this system\n",
+				MNTOPT_64BITINODE);
+			return EINVAL;
+#endif
+		} else if (!strcmp(this_char, MNTOPT_NOUUID)) {
+			args->flags |= XFSMNT_NOUUID;
+		} else if (!strcmp(this_char, MNTOPT_NOLOGFLUSH)) {
+			args->flags |= XFSMNT_NOLOGFLUSH;
+		} else if (!strcmp(this_char, MNTOPT_IKEEP)) {
+			args->flags &= ~XFSMNT_IDELETE;
+		} else if (!strcmp(this_char, MNTOPT_NOIKEEP)) {
+			args->flags |= XFSMNT_IDELETE;
+		} else if (!strcmp(this_char, "osyncisdsync")) {
+			/* no-op, this is now the default */
+printk("XFS: osyncisdsync is now the default, option is deprecated.\n");
+		} else if (!strcmp(this_char, "irixsgid")) {
+printk("XFS: irixsgid is now a sysctl(2) variable, option is deprecated.\n");
+		} else {
+			printk("XFS: unknown mount option [%s].\n", this_char);
+			return EINVAL;
+		}
+	}
+
+	if (args->flags & XFSMNT_NORECOVERY) {
+		if ((vfsp->vfs_flag & VFS_RDONLY) == 0) {
+			printk("XFS: no-recovery mounts must be read-only.\n");
+			return EINVAL;
+		}
+	}
+
+	if ((args->flags & XFSMNT_NOALIGN) && (dsunit || dswidth)) {
+		printk(
+	"XFS: sunit and swidth options incompatible with the noalign option\n");
+		return EINVAL;
+	}
+
+	if ((dsunit && !dswidth) || (!dsunit && dswidth)) {
+		printk("XFS: sunit and swidth must be specified together\n");
+		return EINVAL;
+	}
+
+	if (dsunit && (dswidth % dsunit != 0)) {
+		printk(
+	"XFS: stripe width (%d) must be a multiple of the stripe unit (%d)\n",
+			dswidth, dsunit);
+		return EINVAL;
+	}
+
+	if ((args->flags & XFSMNT_NOALIGN) != XFSMNT_NOALIGN) {
+		if (dsunit) {
+			args->sunit = dsunit;
+			args->flags |= XFSMNT_RETERR;
+		} else {
+			args->sunit = vol_dsunit;
+		}
+		dswidth ? (args->swidth = dswidth) :
+			  (args->swidth = vol_dswidth);
+	} else {
+		args->sunit = args->swidth = 0;
+	}
+
+	return 0;
+}
+
+int
+xfs_showargs(
+	struct bhv_desc		*bhv,
+	struct seq_file		*m)
+{
+	static struct proc_xfs_info {
+		int	flag;
+		char	*str;
+	} xfs_info[] = {
+		/* the few simple ones we can get from the mount struct */
+		{ XFS_MOUNT_WSYNC,		"," MNTOPT_WSYNC },
+		{ XFS_MOUNT_INO64,		"," MNTOPT_INO64 },
+		{ XFS_MOUNT_NOALIGN,		"," MNTOPT_NOALIGN },
+		{ XFS_MOUNT_SWALLOC,		"," MNTOPT_SWALLOC },
+		{ XFS_MOUNT_NOUUID,		"," MNTOPT_NOUUID },
+		{ XFS_MOUNT_NORECOVERY,		"," MNTOPT_NORECOVERY },
+		{ XFS_MOUNT_OSYNCISOSYNC,	"," MNTOPT_OSYNCISOSYNC },
+		{ XFS_MOUNT_NOLOGFLUSH,		"," MNTOPT_NOLOGFLUSH },
+		{ XFS_MOUNT_IDELETE,		"," MNTOPT_NOIKEEP },
+		{ 0, NULL }
+	};
+	struct proc_xfs_info	*xfs_infop;
+	struct xfs_mount	*mp = XFS_BHVTOM(bhv);
+
+	for (xfs_infop = xfs_info; xfs_infop->flag; xfs_infop++) {
+		if (mp->m_flags & xfs_infop->flag)
+			seq_puts(m, xfs_infop->str);
+	}
+
+	if (mp->m_flags & XFS_MOUNT_DFLT_IOSIZE)
+		seq_printf(m, "," MNTOPT_BIOSIZE "=%d", mp->m_writeio_log);
+
+	if (mp->m_logbufs > 0)
+		seq_printf(m, "," MNTOPT_LOGBUFS "=%d", mp->m_logbufs);
+
+	if (mp->m_logbsize > 0)
+		seq_printf(m, "," MNTOPT_LOGBSIZE "=%d", mp->m_logbsize);
+
+	if (mp->m_ddev_targp != mp->m_logdev_targp)
+		seq_printf(m, "," MNTOPT_LOGDEV "=%s",
+				XFS_BUFTARG_NAME(mp->m_logdev_targp));
+
+	if (mp->m_rtdev_targp && mp->m_ddev_targp != mp->m_rtdev_targp)
+		seq_printf(m, "," MNTOPT_RTDEV "=%s",
+				XFS_BUFTARG_NAME(mp->m_rtdev_targp));
+
+	if (mp->m_dalign > 0)
+		seq_printf(m, "," MNTOPT_SUNIT "=%d",
+				(int)XFS_FSB_TO_BB(mp, mp->m_dalign));
+
+	if (mp->m_swidth > 0)
+		seq_printf(m, "," MNTOPT_SWIDTH "=%d",
+				(int)XFS_FSB_TO_BB(mp, mp->m_swidth));
+
+	if (!(mp->m_flags & XFS_MOUNT_32BITINOOPT))
+		seq_printf(m, "," MNTOPT_64BITINODE);
+	
+	return 0;
+}
+
+STATIC void
+xfs_freeze(
+	bhv_desc_t	*bdp)
+{
+	xfs_mount_t	*mp = XFS_BHVTOM(bdp);
+
+	while (atomic_read(&mp->m_active_trans) > 0)
+		delay(100);
+
+	/* Push the superblock and write an unmount record */
+	xfs_log_unmount_write(mp);
+	xfs_unmountfs_writesb(mp);
+}
+
+
+vfsops_t xfs_vfsops = {
+	BHV_IDENTITY_INIT(VFS_BHV_XFS,VFS_POSITION_XFS),
+	.vfs_parseargs		= xfs_parseargs,
+	.vfs_showargs		= xfs_showargs,
+	.vfs_mount		= xfs_mount,
+	.vfs_unmount		= xfs_unmount,
+	.vfs_mntupdate		= xfs_mntupdate,
+	.vfs_root		= xfs_root,
+	.vfs_statvfs		= xfs_statvfs,
+	.vfs_sync		= xfs_sync,
+	.vfs_vget		= xfs_vget,
+	.vfs_dmapiops		= (vfs_dmapiops_t)fs_nosys,
+	.vfs_quotactl		= (vfs_quotactl_t)fs_nosys,
+	.vfs_get_inode		= xfs_get_inode,
+	.vfs_init_vnode		= xfs_initialize_vnode,
+	.vfs_force_shutdown	= xfs_do_force_shutdown,
+	.vfs_freeze		= xfs_freeze,
+};
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
new file mode 100644
index 00000000000000..627505db58b16a
--- /dev/null
+++ b/fs/xfs/xfs_vnodeops.c
@@ -0,0 +1,4712 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_macros.h"
+#include "xfs_types.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_itable.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_alloc.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode_item.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_da_btree.h"
+#include "xfs_attr.h"
+#include "xfs_rw.h"
+#include "xfs_refcache.h"
+#include "xfs_error.h"
+#include "xfs_bit.h"
+#include "xfs_rtalloc.h"
+#include "xfs_quota.h"
+#include "xfs_utils.h"
+#include "xfs_trans_space.h"
+#include "xfs_dir_leaf.h"
+#include "xfs_mac.h"
+#include "xfs_log_priv.h"
+
+
+/*
+ * The maximum pathlen is 1024 bytes. Since the minimum file system
+ * blocksize is 512 bytes, we can get a max of 2 extents back from
+ * bmapi.
+ */
+#define SYMLINK_MAPS 2
+
+/*
+ * For xfs, we check that the file isn't too big to be opened by this kernel.
+ * No other open action is required for regular files.  Devices are handled
+ * through the specfs file system, pipes through fifofs.  Device and
+ * fifo vnodes are "wrapped" by specfs and fifofs vnodes, respectively,
+ * when a new vnode is first looked up or created.
+ */
+STATIC int
+xfs_open(
+	bhv_desc_t	*bdp,
+	cred_t		*credp)
+{
+	int		mode;
+	vnode_t		*vp;
+	xfs_inode_t	*ip;
+
+	vp = BHV_TO_VNODE(bdp);
+	ip = XFS_BHVTOI(bdp);
+
+	if (XFS_FORCED_SHUTDOWN(ip->i_mount))
+		return XFS_ERROR(EIO);
+
+	/*
+	 * If it's a directory with any blocks, read-ahead block 0
+	 * as we're almost certain to have the next operation be a read there.
+	 */
+	if (vp->v_type == VDIR && ip->i_d.di_nextents > 0) {
+		mode = xfs_ilock_map_shared(ip);
+		if (ip->i_d.di_nextents > 0)
+			(void)xfs_da_reada_buf(NULL, ip, 0, XFS_DATA_FORK);
+		xfs_iunlock(ip, mode);
+	}
+	return 0;
+}
+
+
+/*
+ * xfs_getattr
+ */
+STATIC int
+xfs_getattr(
+	bhv_desc_t	*bdp,
+	vattr_t		*vap,
+	int		flags,
+	cred_t		*credp)
+{
+	xfs_inode_t	*ip;
+	xfs_mount_t	*mp;
+	vnode_t		*vp;
+
+	vp  = BHV_TO_VNODE(bdp);
+	vn_trace_entry(vp, __FUNCTION__, (inst_t *)__return_address);
+
+	ip = XFS_BHVTOI(bdp);
+	mp = ip->i_mount;
+
+	if (XFS_FORCED_SHUTDOWN(mp))
+		return XFS_ERROR(EIO);
+
+	if (!(flags & ATTR_LAZY))
+		xfs_ilock(ip, XFS_ILOCK_SHARED);
+
+	vap->va_size = ip->i_d.di_size;
+	if (vap->va_mask == XFS_AT_SIZE)
+		goto all_done;
+
+	vap->va_nblocks =
+		XFS_FSB_TO_BB(mp, ip->i_d.di_nblocks + ip->i_delayed_blks);
+	vap->va_nodeid = ip->i_ino;
+#if XFS_BIG_INUMS
+	vap->va_nodeid += mp->m_inoadd;
+#endif
+	vap->va_nlink = ip->i_d.di_nlink;
+
+	/*
+	 * Quick exit for non-stat callers
+	 */
+	if ((vap->va_mask &
+	    ~(XFS_AT_SIZE|XFS_AT_FSID|XFS_AT_NODEID|
+	      XFS_AT_NLINK|XFS_AT_BLKSIZE)) == 0)
+		goto all_done;
+
+	/*
+	 * Copy from in-core inode.
+	 */
+	vap->va_type = vp->v_type;
+	vap->va_mode = ip->i_d.di_mode & MODEMASK;
+	vap->va_uid = ip->i_d.di_uid;
+	vap->va_gid = ip->i_d.di_gid;
+	vap->va_projid = ip->i_d.di_projid;
+
+	/*
+	 * Check vnode type block/char vs. everything else.
+	 * Do it with bitmask because that's faster than looking
+	 * for multiple values individually.
+	 */
+	if (((1 << vp->v_type) & ((1<<VBLK) | (1<<VCHR))) == 0) {
+		vap->va_rdev = 0;
+
+		if (!(ip->i_d.di_flags & XFS_DIFLAG_REALTIME)) {
+
+#if 0
+			/* Large block sizes confuse various
+			 * user space programs, so letting the
+			 * stripe size through is not a good
+			 * idea for now.
+			 */
+			vap->va_blocksize = mp->m_swidth ?
+				/*
+				 * If the underlying volume is a stripe, then
+				 * return the stripe width in bytes as the
+				 * recommended I/O size.
+				 */
+				(mp->m_swidth << mp->m_sb.sb_blocklog) :
+				/*
+				 * Return the largest of the preferred buffer
+				 * sizes since doing small I/Os into larger
+				 * buffers causes buffers to be decommissioned.
+				 * The value returned is in bytes.
+				 */
+				(1 << (int)MAX(mp->m_readio_log,
+					       mp->m_writeio_log));
+
+#else
+			vap->va_blocksize =
+				/*
+				 * Return the largest of the preferred buffer
+				 * sizes since doing small I/Os into larger
+				 * buffers causes buffers to be decommissioned.
+				 * The value returned is in bytes.
+				 */
+				1 << (int)MAX(mp->m_readio_log,
+					       mp->m_writeio_log);
+#endif
+		} else {
+
+			/*
+			 * If the file blocks are being allocated from a
+			 * realtime partition, then return the inode's
+			 * realtime extent size or the realtime volume's
+			 * extent size.
+			 */
+			vap->va_blocksize = ip->i_d.di_extsize ?
+				(ip->i_d.di_extsize << mp->m_sb.sb_blocklog) :
+				(mp->m_sb.sb_rextsize << mp->m_sb.sb_blocklog);
+		}
+	} else {
+		vap->va_rdev = ip->i_df.if_u2.if_rdev;
+		vap->va_blocksize = BLKDEV_IOSIZE;
+	}
+
+	vap->va_atime.tv_sec = ip->i_d.di_atime.t_sec;
+	vap->va_atime.tv_nsec = ip->i_d.di_atime.t_nsec;
+	vap->va_mtime.tv_sec = ip->i_d.di_mtime.t_sec;
+	vap->va_mtime.tv_nsec = ip->i_d.di_mtime.t_nsec;
+	vap->va_ctime.tv_sec = ip->i_d.di_ctime.t_sec;
+	vap->va_ctime.tv_nsec = ip->i_d.di_ctime.t_nsec;
+
+	/*
+	 * Exit for stat callers.  See if any of the rest of the fields
+	 * to be filled in are needed.
+	 */
+	if ((vap->va_mask &
+	     (XFS_AT_XFLAGS|XFS_AT_EXTSIZE|XFS_AT_NEXTENTS|XFS_AT_ANEXTENTS|
+	      XFS_AT_GENCOUNT|XFS_AT_VCODE)) == 0)
+		goto all_done;
+
+	/*
+	 * Convert di_flags to xflags.
+	 */
+	vap->va_xflags = xfs_dic2xflags(&ip->i_d, ARCH_NOCONVERT);
+
+	/*
+	 * Exit for inode revalidate.  See if any of the rest of
+	 * the fields to be filled in are needed.
+	 */
+	if ((vap->va_mask &
+	     (XFS_AT_EXTSIZE|XFS_AT_NEXTENTS|XFS_AT_ANEXTENTS|
+	      XFS_AT_GENCOUNT|XFS_AT_VCODE)) == 0)
+		goto all_done;
+
+	vap->va_extsize = ip->i_d.di_extsize << mp->m_sb.sb_blocklog;
+	vap->va_nextents =
+		(ip->i_df.if_flags & XFS_IFEXTENTS) ?
+			ip->i_df.if_bytes / sizeof(xfs_bmbt_rec_t) :
+			ip->i_d.di_nextents;
+	if (ip->i_afp)
+		vap->va_anextents =
+			(ip->i_afp->if_flags & XFS_IFEXTENTS) ?
+				ip->i_afp->if_bytes / sizeof(xfs_bmbt_rec_t) :
+				 ip->i_d.di_anextents;
+	else
+		vap->va_anextents = 0;
+	vap->va_gen = ip->i_d.di_gen;
+
+ all_done:
+	if (!(flags & ATTR_LAZY))
+		xfs_iunlock(ip, XFS_ILOCK_SHARED);
+	return 0;
+}
+
+
+/*
+ * xfs_setattr
+ */
+int
+xfs_setattr(
+	bhv_desc_t		*bdp,
+	vattr_t			*vap,
+	int			flags,
+	cred_t			*credp)
+{
+	xfs_inode_t		*ip;
+	xfs_trans_t		*tp;
+	xfs_mount_t		*mp;
+	int			mask;
+	int			code;
+	uint			lock_flags;
+	uint			commit_flags=0;
+	uid_t			uid=0, iuid=0;
+	gid_t			gid=0, igid=0;
+	int			timeflags = 0;
+	vnode_t			*vp;
+	xfs_prid_t		projid=0, iprojid=0;
+	int			mandlock_before, mandlock_after;
+	struct xfs_dquot	*udqp, *gdqp, *olddquot1, *olddquot2;
+	int			file_owner;
+	int			need_iolock = (flags & ATTR_DMI) == 0;
+
+	vp = BHV_TO_VNODE(bdp);
+	vn_trace_entry(vp, __FUNCTION__, (inst_t *)__return_address);
+
+	if (vp->v_vfsp->vfs_flag & VFS_RDONLY)
+		return XFS_ERROR(EROFS);
+
+	/*
+	 * Cannot set certain attributes.
+	 */
+	mask = vap->va_mask;
+	if (mask & XFS_AT_NOSET) {
+		return XFS_ERROR(EINVAL);
+	}
+
+	ip = XFS_BHVTOI(bdp);
+	mp = ip->i_mount;
+
+	if (XFS_FORCED_SHUTDOWN(mp))
+		return XFS_ERROR(EIO);
+
+	/*
+	 * Timestamps do not need to be logged and hence do not
+	 * need to be done within a transaction.
+	 */
+	if (mask & XFS_AT_UPDTIMES) {
+		ASSERT((mask & ~XFS_AT_UPDTIMES) == 0);
+		timeflags = ((mask & XFS_AT_UPDATIME) ? XFS_ICHGTIME_ACC : 0) |
+			    ((mask & XFS_AT_UPDCTIME) ? XFS_ICHGTIME_CHG : 0) |
+			    ((mask & XFS_AT_UPDMTIME) ? XFS_ICHGTIME_MOD : 0);
+		xfs_ichgtime(ip, timeflags);
+		return 0;
+	}
+
+	olddquot1 = olddquot2 = NULL;
+	udqp = gdqp = NULL;
+
+	/*
+	 * If disk quotas is on, we make sure that the dquots do exist on disk,
+	 * before we start any other transactions. Trying to do this later
+	 * is messy. We don't care to take a readlock to look at the ids
+	 * in inode here, because we can't hold it across the trans_reserve.
+	 * If the IDs do change before we take the ilock, we're covered
+	 * because the i_*dquot fields will get updated anyway.
+	 */
+	if (XFS_IS_QUOTA_ON(mp) && (mask & (XFS_AT_UID|XFS_AT_GID))) {
+		uint	qflags = 0;
+
+		if (mask & XFS_AT_UID) {
+			uid = vap->va_uid;
+			qflags |= XFS_QMOPT_UQUOTA;
+		} else {
+			uid = ip->i_d.di_uid;
+		}
+		if (mask & XFS_AT_GID) {
+			gid = vap->va_gid;
+			qflags |= XFS_QMOPT_GQUOTA;
+		}  else {
+			gid = ip->i_d.di_gid;
+		}
+		/*
+		 * We take a reference when we initialize udqp and gdqp,
+		 * so it is important that we never blindly double trip on
+		 * the same variable. See xfs_create() for an example.
+		 */
+		ASSERT(udqp == NULL);
+		ASSERT(gdqp == NULL);
+		code = XFS_QM_DQVOPALLOC(mp, ip, uid,gid, qflags, &udqp, &gdqp);
+		if (code)
+			return (code);
+	}
+
+	/*
+	 * For the other attributes, we acquire the inode lock and
+	 * first do an error checking pass.
+	 */
+	tp = NULL;
+	lock_flags = XFS_ILOCK_EXCL;
+	if (!(mask & XFS_AT_SIZE)) {
+		if ((mask != (XFS_AT_CTIME|XFS_AT_ATIME|XFS_AT_MTIME)) ||
+		    (mp->m_flags & XFS_MOUNT_WSYNC)) {
+			tp = xfs_trans_alloc(mp, XFS_TRANS_SETATTR_NOT_SIZE);
+			commit_flags = 0;
+			if ((code = xfs_trans_reserve(tp, 0,
+						     XFS_ICHANGE_LOG_RES(mp), 0,
+						     0, 0))) {
+				lock_flags = 0;
+				goto error_return;
+			}
+		}
+	} else {
+		if (DM_EVENT_ENABLED (vp->v_vfsp, ip, DM_EVENT_TRUNCATE) &&
+		    !(flags & ATTR_DMI)) {
+			int dmflags = AT_DELAY_FLAG(flags) | DM_SEM_FLAG_WR;
+			code = XFS_SEND_DATA(mp, DM_EVENT_TRUNCATE, vp,
+				vap->va_size, 0, dmflags, NULL);
+			if (code) {
+				lock_flags = 0;
+				goto error_return;
+			}
+		}
+		if (need_iolock)
+			lock_flags |= XFS_IOLOCK_EXCL;
+	}
+
+	xfs_ilock(ip, lock_flags);
+
+	/* boolean: are we the file owner? */
+	file_owner = (current_fsuid(credp) == ip->i_d.di_uid);
+
+	/*
+	 * Change various properties of a file.
+	 * Only the owner or users with CAP_FOWNER
+	 * capability may do these things.
+	 */
+	if (mask &
+	    (XFS_AT_MODE|XFS_AT_XFLAGS|XFS_AT_EXTSIZE|XFS_AT_UID|
+	     XFS_AT_GID|XFS_AT_PROJID)) {
+		/*
+		 * CAP_FOWNER overrides the following restrictions:
+		 *
+		 * The user ID of the calling process must be equal
+		 * to the file owner ID, except in cases where the
+		 * CAP_FSETID capability is applicable.
+		 */
+		if (!file_owner && !capable(CAP_FOWNER)) {
+			code = XFS_ERROR(EPERM);
+			goto error_return;
+		}
+
+		/*
+		 * CAP_FSETID overrides the following restrictions:
+		 *
+		 * The effective user ID of the calling process shall match
+		 * the file owner when setting the set-user-ID and
+		 * set-group-ID bits on that file.
+		 *
+		 * The effective group ID or one of the supplementary group
+		 * IDs of the calling process shall match the group owner of
+		 * the file when setting the set-group-ID bit on that file
+		 */
+		if (mask & XFS_AT_MODE) {
+			mode_t m = 0;
+
+			if ((vap->va_mode & S_ISUID) && !file_owner)
+				m |= S_ISUID;
+			if ((vap->va_mode & S_ISGID) &&
+			    !in_group_p((gid_t)ip->i_d.di_gid))
+				m |= S_ISGID;
+#if 0
+			/* Linux allows this, Irix doesn't. */
+			if ((vap->va_mode & S_ISVTX) && vp->v_type != VDIR)
+				m |= S_ISVTX;
+#endif
+			if (m && !capable(CAP_FSETID))
+				vap->va_mode &= ~m;
+		}
+	}
+
+	/*
+	 * Change file ownership.  Must be the owner or privileged.
+	 * If the system was configured with the "restricted_chown"
+	 * option, the owner is not permitted to give away the file,
+	 * and can change the group id only to a group of which he
+	 * or she is a member.
+	 */
+	if (mask & (XFS_AT_UID|XFS_AT_GID|XFS_AT_PROJID)) {
+		/*
+		 * These IDs could have changed since we last looked at them.
+		 * But, we're assured that if the ownership did change
+		 * while we didn't have the inode locked, inode's dquot(s)
+		 * would have changed also.
+		 */
+		iuid = ip->i_d.di_uid;
+		iprojid = ip->i_d.di_projid;
+		igid = ip->i_d.di_gid;
+		gid = (mask & XFS_AT_GID) ? vap->va_gid : igid;
+		uid = (mask & XFS_AT_UID) ? vap->va_uid : iuid;
+		projid = (mask & XFS_AT_PROJID) ? (xfs_prid_t)vap->va_projid :
+			 iprojid;
+
+		/*
+		 * CAP_CHOWN overrides the following restrictions:
+		 *
+		 * If _POSIX_CHOWN_RESTRICTED is defined, this capability
+		 * shall override the restriction that a process cannot
+		 * change the user ID of a file it owns and the restriction
+		 * that the group ID supplied to the chown() function
+		 * shall be equal to either the group ID or one of the
+		 * supplementary group IDs of the calling process.
+		 *
+		 * XXX: How does restricted_chown affect projid?
+		 */
+		if (restricted_chown &&
+		    (iuid != uid || (igid != gid &&
+				     !in_group_p((gid_t)gid))) &&
+		    !capable(CAP_CHOWN)) {
+			code = XFS_ERROR(EPERM);
+			goto error_return;
+		}
+		/*
+		 * Do a quota reservation only if uid or gid is actually
+		 * going to change.
+		 */
+		if ((XFS_IS_UQUOTA_ON(mp) && iuid != uid) ||
+		    (XFS_IS_GQUOTA_ON(mp) && igid != gid)) {
+			ASSERT(tp);
+			code = XFS_QM_DQVOPCHOWNRESV(mp, tp, ip, udqp, gdqp,
+						capable(CAP_FOWNER) ?
+						XFS_QMOPT_FORCE_RES : 0);
+			if (code)	/* out of quota */
+				goto error_return;
+		}
+	}
+
+	/*
+	 * Truncate file.  Must have write permission and not be a directory.
+	 */
+	if (mask & XFS_AT_SIZE) {
+		/* Short circuit the truncate case for zero length files */
+		if ((vap->va_size == 0) &&
+		   (ip->i_d.di_size == 0) && (ip->i_d.di_nextents == 0)) {
+			xfs_iunlock(ip, XFS_ILOCK_EXCL);
+			lock_flags &= ~XFS_ILOCK_EXCL;
+			if (mask & XFS_AT_CTIME)
+				xfs_ichgtime(ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+			code = 0;
+			goto error_return;
+		}
+
+		if (vp->v_type == VDIR) {
+			code = XFS_ERROR(EISDIR);
+			goto error_return;
+		} else if (vp->v_type != VREG) {
+			code = XFS_ERROR(EINVAL);
+			goto error_return;
+		}
+		/*
+		 * Make sure that the dquots are attached to the inode.
+		 */
+		if ((code = XFS_QM_DQATTACH(mp, ip, XFS_QMOPT_ILOCKED)))
+			goto error_return;
+	}
+
+	/*
+	 * Change file access or modified times.
+	 */
+	if (mask & (XFS_AT_ATIME|XFS_AT_MTIME)) {
+		if (!file_owner) {
+			if ((flags & ATTR_UTIME) &&
+			    !capable(CAP_FOWNER)) {
+				code = XFS_ERROR(EPERM);
+				goto error_return;
+			}
+		}
+	}
+
+	/*
+	 * Change extent size or realtime flag.
+	 */
+	if (mask & (XFS_AT_EXTSIZE|XFS_AT_XFLAGS)) {
+		/*
+		 * Can't change extent size if any extents are allocated.
+		 */
+		if ((ip->i_d.di_nextents || ip->i_delayed_blks) &&
+		    (mask & XFS_AT_EXTSIZE) &&
+		    ((ip->i_d.di_extsize << mp->m_sb.sb_blocklog) !=
+		     vap->va_extsize) ) {
+			code = XFS_ERROR(EINVAL);	/* EFBIG? */
+			goto error_return;
+		}
+
+		/*
+		 * Can't set extent size unless the file is marked, or
+		 * about to be marked as a realtime file.
+		 *
+		 * This check will be removed when fixed size extents
+		 * with buffered data writes is implemented.
+		 *
+		 */
+		if ((mask & XFS_AT_EXTSIZE)			&&
+		    ((ip->i_d.di_extsize << mp->m_sb.sb_blocklog) !=
+		     vap->va_extsize) &&
+		    (!((ip->i_d.di_flags & XFS_DIFLAG_REALTIME) ||
+		       ((mask & XFS_AT_XFLAGS) &&
+			(vap->va_xflags & XFS_XFLAG_REALTIME))))) {
+			code = XFS_ERROR(EINVAL);
+			goto error_return;
+		}
+
+		/*
+		 * Can't change realtime flag if any extents are allocated.
+		 */
+		if (ip->i_d.di_nextents && (mask & XFS_AT_XFLAGS) &&
+		    (ip->i_d.di_flags & XFS_DIFLAG_REALTIME) !=
+		    (vap->va_xflags & XFS_XFLAG_REALTIME)) {
+			code = XFS_ERROR(EINVAL);	/* EFBIG? */
+			goto error_return;
+		}
+		/*
+		 * Extent size must be a multiple of the appropriate block
+		 * size, if set at all.
+		 */
+		if ((mask & XFS_AT_EXTSIZE) && vap->va_extsize != 0) {
+			xfs_extlen_t	size;
+
+			if ((ip->i_d.di_flags & XFS_DIFLAG_REALTIME) ||
+			    ((mask & XFS_AT_XFLAGS) &&
+			    (vap->va_xflags & XFS_XFLAG_REALTIME))) {
+				size = mp->m_sb.sb_rextsize <<
+				       mp->m_sb.sb_blocklog;
+			} else {
+				size = mp->m_sb.sb_blocksize;
+			}
+			if (vap->va_extsize % size) {
+				code = XFS_ERROR(EINVAL);
+				goto error_return;
+			}
+		}
+		/*
+		 * If realtime flag is set then must have realtime data.
+		 */
+		if ((mask & XFS_AT_XFLAGS) &&
+		    (vap->va_xflags & XFS_XFLAG_REALTIME)) {
+			if ((mp->m_sb.sb_rblocks == 0) ||
+			    (mp->m_sb.sb_rextsize == 0) ||
+			    (ip->i_d.di_extsize % mp->m_sb.sb_rextsize)) {
+				code = XFS_ERROR(EINVAL);
+				goto error_return;
+			}
+		}
+
+		/*
+		 * Can't modify an immutable/append-only file unless
+		 * we have appropriate permission.
+		 */
+		if ((mask & XFS_AT_XFLAGS) &&
+		    (ip->i_d.di_flags &
+				(XFS_DIFLAG_IMMUTABLE|XFS_DIFLAG_APPEND) ||
+		     (vap->va_xflags &
+				(XFS_XFLAG_IMMUTABLE | XFS_XFLAG_APPEND))) &&
+		    !capable(CAP_LINUX_IMMUTABLE)) {
+			code = XFS_ERROR(EPERM);
+			goto error_return;
+		}
+	}
+
+	/*
+	 * Now we can make the changes.  Before we join the inode
+	 * to the transaction, if XFS_AT_SIZE is set then take care of
+	 * the part of the truncation that must be done without the
+	 * inode lock.  This needs to be done before joining the inode
+	 * to the transaction, because the inode cannot be unlocked
+	 * once it is a part of the transaction.
+	 */
+	if (mask & XFS_AT_SIZE) {
+		code = 0;
+		if (vap->va_size > ip->i_d.di_size)
+			code = xfs_igrow_start(ip, vap->va_size, credp);
+		xfs_iunlock(ip, XFS_ILOCK_EXCL);
+		if (!code)
+			code = xfs_itruncate_data(ip, vap->va_size);
+		if (code) {
+			ASSERT(tp == NULL);
+			lock_flags &= ~XFS_ILOCK_EXCL;
+			ASSERT(lock_flags == XFS_IOLOCK_EXCL);
+			goto error_return;
+		}
+		tp = xfs_trans_alloc(mp, XFS_TRANS_SETATTR_SIZE);
+		if ((code = xfs_trans_reserve(tp, 0,
+					     XFS_ITRUNCATE_LOG_RES(mp), 0,
+					     XFS_TRANS_PERM_LOG_RES,
+					     XFS_ITRUNCATE_LOG_COUNT))) {
+			xfs_trans_cancel(tp, 0);
+			if (need_iolock)
+				xfs_iunlock(ip, XFS_IOLOCK_EXCL);
+			return code;
+		}
+		commit_flags = XFS_TRANS_RELEASE_LOG_RES;
+		xfs_ilock(ip, XFS_ILOCK_EXCL);
+	}
+
+	if (tp) {
+		xfs_trans_ijoin(tp, ip, lock_flags);
+		xfs_trans_ihold(tp, ip);
+	}
+
+	/* determine whether mandatory locking mode changes */
+	mandlock_before = MANDLOCK(vp, ip->i_d.di_mode);
+
+	/*
+	 * Truncate file.  Must have write permission and not be a directory.
+	 */
+	if (mask & XFS_AT_SIZE) {
+		if (vap->va_size > ip->i_d.di_size) {
+			xfs_igrow_finish(tp, ip, vap->va_size,
+			    !(flags & ATTR_DMI));
+		} else if ((vap->va_size <= ip->i_d.di_size) ||
+			   ((vap->va_size == 0) && ip->i_d.di_nextents)) {
+			/*
+			 * signal a sync transaction unless
+			 * we're truncating an already unlinked
+			 * file on a wsync filesystem
+			 */
+			code = xfs_itruncate_finish(&tp, ip,
+					    (xfs_fsize_t)vap->va_size,
+					    XFS_DATA_FORK,
+					    ((ip->i_d.di_nlink != 0 ||
+					      !(mp->m_flags & XFS_MOUNT_WSYNC))
+					     ? 1 : 0));
+			if (code) {
+				goto abort_return;
+			}
+		}
+		/*
+		 * Have to do this even if the file's size doesn't change.
+		 */
+		timeflags |= XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG;
+	}
+
+	/*
+	 * Change file access modes.
+	 */
+	if (mask & XFS_AT_MODE) {
+		ip->i_d.di_mode &= S_IFMT;
+		ip->i_d.di_mode |= vap->va_mode & ~S_IFMT;
+
+		xfs_trans_log_inode (tp, ip, XFS_ILOG_CORE);
+		timeflags |= XFS_ICHGTIME_CHG;
+	}
+
+	/*
+	 * Change file ownership.  Must be the owner or privileged.
+	 * If the system was configured with the "restricted_chown"
+	 * option, the owner is not permitted to give away the file,
+	 * and can change the group id only to a group of which he
+	 * or she is a member.
+	 */
+	if (mask & (XFS_AT_UID|XFS_AT_GID|XFS_AT_PROJID)) {
+		/*
+		 * CAP_FSETID overrides the following restrictions:
+		 *
+		 * The set-user-ID and set-group-ID bits of a file will be
+		 * cleared upon successful return from chown()
+		 */
+		if ((ip->i_d.di_mode & (S_ISUID|S_ISGID)) &&
+		    !capable(CAP_FSETID)) {
+			ip->i_d.di_mode &= ~(S_ISUID|S_ISGID);
+		}
+
+		/*
+		 * Change the ownerships and register quota modifications
+		 * in the transaction.
+		 */
+		if (iuid != uid) {
+			if (XFS_IS_UQUOTA_ON(mp)) {
+				ASSERT(mask & XFS_AT_UID);
+				ASSERT(udqp);
+				olddquot1 = XFS_QM_DQVOPCHOWN(mp, tp, ip,
+							&ip->i_udquot, udqp);
+			}
+			ip->i_d.di_uid = uid;
+		}
+		if (igid != gid) {
+			if (XFS_IS_GQUOTA_ON(mp)) {
+				ASSERT(mask & XFS_AT_GID);
+				ASSERT(gdqp);
+				olddquot2 = XFS_QM_DQVOPCHOWN(mp, tp, ip,
+							&ip->i_gdquot, gdqp);
+			}
+			ip->i_d.di_gid = gid;
+		}
+		if (iprojid != projid) {
+			ip->i_d.di_projid = projid;
+			/*
+			 * We may have to rev the inode as well as
+			 * the superblock version number since projids didn't
+			 * exist before DINODE_VERSION_2 and SB_VERSION_NLINK.
+			 */
+			if (ip->i_d.di_version == XFS_DINODE_VERSION_1)
+				xfs_bump_ino_vers2(tp, ip);
+		}
+
+		xfs_trans_log_inode (tp, ip, XFS_ILOG_CORE);
+		timeflags |= XFS_ICHGTIME_CHG;
+	}
+
+
+	/*
+	 * Change file access or modified times.
+	 */
+	if (mask & (XFS_AT_ATIME|XFS_AT_MTIME)) {
+		if (mask & XFS_AT_ATIME) {
+			ip->i_d.di_atime.t_sec = vap->va_atime.tv_sec;
+			ip->i_d.di_atime.t_nsec = vap->va_atime.tv_nsec;
+			ip->i_update_core = 1;
+			timeflags &= ~XFS_ICHGTIME_ACC;
+		}
+		if (mask & XFS_AT_MTIME) {
+			ip->i_d.di_mtime.t_sec = vap->va_mtime.tv_sec;
+			ip->i_d.di_mtime.t_nsec = vap->va_mtime.tv_nsec;
+			timeflags &= ~XFS_ICHGTIME_MOD;
+			timeflags |= XFS_ICHGTIME_CHG;
+		}
+		if (tp && (flags & ATTR_UTIME))
+			xfs_trans_log_inode (tp, ip, XFS_ILOG_CORE);
+	}
+
+	/*
+	 * Change XFS-added attributes.
+	 */
+	if (mask & (XFS_AT_EXTSIZE|XFS_AT_XFLAGS)) {
+		if (mask & XFS_AT_EXTSIZE) {
+			/*
+			 * Converting bytes to fs blocks.
+			 */
+			ip->i_d.di_extsize = vap->va_extsize >>
+				mp->m_sb.sb_blocklog;
+		}
+		if (mask & XFS_AT_XFLAGS) {
+			uint	di_flags;
+
+			/* can't set PREALLOC this way, just preserve it */
+			di_flags = (ip->i_d.di_flags & XFS_DIFLAG_PREALLOC);
+			if (vap->va_xflags & XFS_XFLAG_IMMUTABLE)
+				di_flags |= XFS_DIFLAG_IMMUTABLE;
+			if (vap->va_xflags & XFS_XFLAG_APPEND)
+				di_flags |= XFS_DIFLAG_APPEND;
+			if (vap->va_xflags & XFS_XFLAG_SYNC)
+				di_flags |= XFS_DIFLAG_SYNC;
+			if (vap->va_xflags & XFS_XFLAG_NOATIME)
+				di_flags |= XFS_DIFLAG_NOATIME;
+			if (vap->va_xflags & XFS_XFLAG_NODUMP)
+				di_flags |= XFS_DIFLAG_NODUMP;
+			if ((ip->i_d.di_mode & S_IFMT) == S_IFDIR) {
+				if (vap->va_xflags & XFS_XFLAG_RTINHERIT)
+					di_flags |= XFS_DIFLAG_RTINHERIT;
+				if (vap->va_xflags & XFS_XFLAG_NOSYMLINKS)
+					di_flags |= XFS_DIFLAG_NOSYMLINKS;
+			} else {
+				if (vap->va_xflags & XFS_XFLAG_REALTIME) {
+					di_flags |= XFS_DIFLAG_REALTIME;
+					ip->i_iocore.io_flags |= XFS_IOCORE_RT;
+				} else {
+					ip->i_iocore.io_flags &= ~XFS_IOCORE_RT;
+				}
+			}
+			ip->i_d.di_flags = di_flags;
+		}
+		xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+		timeflags |= XFS_ICHGTIME_CHG;
+	}
+
+	/*
+	 * Change file inode change time only if XFS_AT_CTIME set
+	 * AND we have been called by a DMI function.
+	 */
+
+	if ( (flags & ATTR_DMI) && (mask & XFS_AT_CTIME) ) {
+		ip->i_d.di_ctime.t_sec = vap->va_ctime.tv_sec;
+		ip->i_d.di_ctime.t_nsec = vap->va_ctime.tv_nsec;
+		ip->i_update_core = 1;
+		timeflags &= ~XFS_ICHGTIME_CHG;
+	}
+
+	/*
+	 * Send out timestamp changes that need to be set to the
+	 * current time.  Not done when called by a DMI function.
+	 */
+	if (timeflags && !(flags & ATTR_DMI))
+		xfs_ichgtime(ip, timeflags);
+
+	XFS_STATS_INC(xs_ig_attrchg);
+
+	/*
+	 * If this is a synchronous mount, make sure that the
+	 * transaction goes to disk before returning to the user.
+	 * This is slightly sub-optimal in that truncates require
+	 * two sync transactions instead of one for wsync filesytems.
+	 * One for the truncate and one for the timestamps since we
+	 * don't want to change the timestamps unless we're sure the
+	 * truncate worked.  Truncates are less than 1% of the laddis
+	 * mix so this probably isn't worth the trouble to optimize.
+	 */
+	code = 0;
+	if (tp) {
+		if (mp->m_flags & XFS_MOUNT_WSYNC)
+			xfs_trans_set_sync(tp);
+
+		code = xfs_trans_commit(tp, commit_flags, NULL);
+	}
+
+	/*
+	 * If the (regular) file's mandatory locking mode changed, then
+	 * notify the vnode.  We do this under the inode lock to prevent
+	 * racing calls to vop_vnode_change.
+	 */
+	mandlock_after = MANDLOCK(vp, ip->i_d.di_mode);
+	if (mandlock_before != mandlock_after) {
+		VOP_VNODE_CHANGE(vp, VCHANGE_FLAGS_ENF_LOCKING,
+				 mandlock_after);
+	}
+
+	xfs_iunlock(ip, lock_flags);
+
+	/*
+	 * Release any dquot(s) the inode had kept before chown.
+	 */
+	XFS_QM_DQRELE(mp, olddquot1);
+	XFS_QM_DQRELE(mp, olddquot2);
+	XFS_QM_DQRELE(mp, udqp);
+	XFS_QM_DQRELE(mp, gdqp);
+
+	if (code) {
+		return code;
+	}
+
+	if (DM_EVENT_ENABLED(vp->v_vfsp, ip, DM_EVENT_ATTRIBUTE) &&
+	    !(flags & ATTR_DMI)) {
+		(void) XFS_SEND_NAMESP(mp, DM_EVENT_ATTRIBUTE, vp, DM_RIGHT_NULL,
+					NULL, DM_RIGHT_NULL, NULL, NULL,
+					0, 0, AT_DELAY_FLAG(flags));
+	}
+	return 0;
+
+ abort_return:
+	commit_flags |= XFS_TRANS_ABORT;
+	/* FALLTHROUGH */
+ error_return:
+	XFS_QM_DQRELE(mp, udqp);
+	XFS_QM_DQRELE(mp, gdqp);
+	if (tp) {
+		xfs_trans_cancel(tp, commit_flags);
+	}
+	if (lock_flags != 0) {
+		xfs_iunlock(ip, lock_flags);
+	}
+	return code;
+}
+
+
+/*
+ * xfs_access
+ * Null conversion from vnode mode bits to inode mode bits, as in efs.
+ */
+STATIC int
+xfs_access(
+	bhv_desc_t	*bdp,
+	int		mode,
+	cred_t		*credp)
+{
+	xfs_inode_t	*ip;
+	int		error;
+
+	vn_trace_entry(BHV_TO_VNODE(bdp), __FUNCTION__,
+					       (inst_t *)__return_address);
+
+	ip = XFS_BHVTOI(bdp);
+	xfs_ilock(ip, XFS_ILOCK_SHARED);
+	error = xfs_iaccess(ip, mode, credp);
+	xfs_iunlock(ip, XFS_ILOCK_SHARED);
+	return error;
+}
+
+
+/*
+ * xfs_readlink
+ *
+ */
+STATIC int
+xfs_readlink(
+	bhv_desc_t	*bdp,
+	uio_t		*uiop,
+	int		ioflags,
+	cred_t		*credp)
+{
+	xfs_inode_t     *ip;
+	int		count;
+	xfs_off_t	offset;
+	int		pathlen;
+	vnode_t		*vp;
+	int		error = 0;
+	xfs_mount_t	*mp;
+	int             nmaps;
+	xfs_bmbt_irec_t mval[SYMLINK_MAPS];
+	xfs_daddr_t	d;
+	int		byte_cnt;
+	int		n;
+	xfs_buf_t	*bp;
+
+	vp = BHV_TO_VNODE(bdp);
+	vn_trace_entry(vp, __FUNCTION__, (inst_t *)__return_address);
+
+	ip = XFS_BHVTOI(bdp);
+	mp = ip->i_mount;
+
+	if (XFS_FORCED_SHUTDOWN(mp))
+		return XFS_ERROR(EIO);
+
+	xfs_ilock(ip, XFS_ILOCK_SHARED);
+
+	ASSERT((ip->i_d.di_mode & S_IFMT) == S_IFLNK);
+
+	offset = uiop->uio_offset;
+	count = uiop->uio_resid;
+
+	if (offset < 0) {
+		error = XFS_ERROR(EINVAL);
+		goto error_return;
+	}
+	if (count <= 0) {
+		error = 0;
+		goto error_return;
+	}
+
+	if (!(ioflags & IO_INVIS)) {
+		xfs_ichgtime(ip, XFS_ICHGTIME_ACC);
+	}
+
+	/*
+	 * See if the symlink is stored inline.
+	 */
+	pathlen = (int)ip->i_d.di_size;
+
+	if (ip->i_df.if_flags & XFS_IFINLINE) {
+		error = uio_read(ip->i_df.if_u1.if_data, pathlen, uiop);
+	}
+	else {
+		/*
+		 * Symlink not inline.  Call bmap to get it in.
+		 */
+		nmaps = SYMLINK_MAPS;
+
+		error = xfs_bmapi(NULL, ip, 0, XFS_B_TO_FSB(mp, pathlen),
+				  0, NULL, 0, mval, &nmaps, NULL);
+
+		if (error) {
+			goto error_return;
+		}
+
+		for (n = 0; n < nmaps; n++) {
+			d = XFS_FSB_TO_DADDR(mp, mval[n].br_startblock);
+			byte_cnt = XFS_FSB_TO_B(mp, mval[n].br_blockcount);
+			bp = xfs_buf_read(mp->m_ddev_targp, d,
+				      BTOBB(byte_cnt), 0);
+			error = XFS_BUF_GETERROR(bp);
+			if (error) {
+				xfs_ioerror_alert("xfs_readlink",
+					  ip->i_mount, bp, XFS_BUF_ADDR(bp));
+				xfs_buf_relse(bp);
+				goto error_return;
+			}
+			if (pathlen < byte_cnt)
+				byte_cnt = pathlen;
+			pathlen -= byte_cnt;
+
+			error = uio_read(XFS_BUF_PTR(bp), byte_cnt, uiop);
+			xfs_buf_relse (bp);
+		}
+
+	}
+
+
+error_return:
+
+	xfs_iunlock(ip, XFS_ILOCK_SHARED);
+
+	return error;
+}
+
+
+/*
+ * xfs_fsync
+ *
+ * This is called to sync the inode and its data out to disk.
+ * We need to hold the I/O lock while flushing the data, and
+ * the inode lock while flushing the inode.  The inode lock CANNOT
+ * be held while flushing the data, so acquire after we're done
+ * with that.
+ */
+STATIC int
+xfs_fsync(
+	bhv_desc_t	*bdp,
+	int		flag,
+	cred_t		*credp,
+	xfs_off_t	start,
+	xfs_off_t	stop)
+{
+	xfs_inode_t	*ip;
+	xfs_trans_t	*tp;
+	int		error;
+
+	vn_trace_entry(BHV_TO_VNODE(bdp),
+			__FUNCTION__, (inst_t *)__return_address);
+
+	ip = XFS_BHVTOI(bdp);
+
+	ASSERT(start >= 0 && stop >= -1);
+
+	if (XFS_FORCED_SHUTDOWN(ip->i_mount))
+		return XFS_ERROR(EIO);
+
+	/*
+	 * We always need to make sure that the required inode state
+	 * is safe on disk.  The vnode might be clean but because
+	 * of committed transactions that haven't hit the disk yet.
+	 * Likewise, there could be unflushed non-transactional
+	 * changes to the inode core that have to go to disk.
+	 *
+	 * The following code depends on one assumption:  that
+	 * any transaction that changes an inode logs the core
+	 * because it has to change some field in the inode core
+	 * (typically nextents or nblocks).  That assumption
+	 * implies that any transactions against an inode will
+	 * catch any non-transactional updates.  If inode-altering
+	 * transactions exist that violate this assumption, the
+	 * code breaks.  Right now, it figures that if the involved
+	 * update_* field is clear and the inode is unpinned, the
+	 * inode is clean.  Either it's been flushed or it's been
+	 * committed and the commit has hit the disk unpinning the inode.
+	 * (Note that xfs_inode_item_format() called at commit clears
+	 * the update_* fields.)
+	 */
+	xfs_ilock(ip, XFS_ILOCK_SHARED);
+
+	/* If we are flushing data then we care about update_size
+	 * being set, otherwise we care about update_core
+	 */
+	if ((flag & FSYNC_DATA) ?
+			(ip->i_update_size == 0) :
+			(ip->i_update_core == 0)) {
+		/*
+		 * Timestamps/size haven't changed since last inode
+		 * flush or inode transaction commit.  That means
+		 * either nothing got written or a transaction
+		 * committed which caught the updates.	If the
+		 * latter happened and the transaction hasn't
+		 * hit the disk yet, the inode will be still
+		 * be pinned.  If it is, force the log.
+		 */
+
+		xfs_iunlock(ip, XFS_ILOCK_SHARED);
+
+		if (xfs_ipincount(ip)) {
+			xfs_log_force(ip->i_mount, (xfs_lsn_t)0,
+				      XFS_LOG_FORCE |
+				      ((flag & FSYNC_WAIT)
+				       ? XFS_LOG_SYNC : 0));
+		}
+		error = 0;
+	} else	{
+		/*
+		 * Kick off a transaction to log the inode
+		 * core to get the updates.  Make it
+		 * sync if FSYNC_WAIT is passed in (which
+		 * is done by everybody but specfs).  The
+		 * sync transaction will also force the log.
+		 */
+		xfs_iunlock(ip, XFS_ILOCK_SHARED);
+		tp = xfs_trans_alloc(ip->i_mount, XFS_TRANS_FSYNC_TS);
+		if ((error = xfs_trans_reserve(tp, 0,
+				XFS_FSYNC_TS_LOG_RES(ip->i_mount),
+				0, 0, 0)))  {
+			xfs_trans_cancel(tp, 0);
+			return error;
+		}
+		xfs_ilock(ip, XFS_ILOCK_EXCL);
+
+		/*
+		 * Note - it's possible that we might have pushed
+		 * ourselves out of the way during trans_reserve
+		 * which would flush the inode.	 But there's no
+		 * guarantee that the inode buffer has actually
+		 * gone out yet (it's delwri).	Plus the buffer
+		 * could be pinned anyway if it's part of an
+		 * inode in another recent transaction.	 So we
+		 * play it safe and fire off the transaction anyway.
+		 */
+		xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+		xfs_trans_ihold(tp, ip);
+		xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+		if (flag & FSYNC_WAIT)
+			xfs_trans_set_sync(tp);
+		error = xfs_trans_commit(tp, 0, NULL);
+
+		xfs_iunlock(ip, XFS_ILOCK_EXCL);
+	}
+	return error;
+}
+
+/*
+ * This is called by xfs_inactive to free any blocks beyond eof,
+ * when the link count isn't zero.
+ */
+STATIC int
+xfs_inactive_free_eofblocks(
+	xfs_mount_t	*mp,
+	xfs_inode_t	*ip)
+{
+	xfs_trans_t	*tp;
+	int		error;
+	xfs_fileoff_t	end_fsb;
+	xfs_fileoff_t	last_fsb;
+	xfs_filblks_t	map_len;
+	int		nimaps;
+	xfs_bmbt_irec_t	imap;
+
+	/*
+	 * Figure out if there are any blocks beyond the end
+	 * of the file.  If not, then there is nothing to do.
+	 */
+	end_fsb = XFS_B_TO_FSB(mp, ((xfs_ufsize_t)ip->i_d.di_size));
+	last_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)XFS_MAXIOFFSET(mp));
+	map_len = last_fsb - end_fsb;
+	if (map_len <= 0)
+		return (0);
+
+	nimaps = 1;
+	xfs_ilock(ip, XFS_ILOCK_SHARED);
+	error = xfs_bmapi(NULL, ip, end_fsb, map_len, 0,
+			  NULL, 0, &imap, &nimaps, NULL);
+	xfs_iunlock(ip, XFS_ILOCK_SHARED);
+
+	if (!error && (nimaps != 0) &&
+	    (imap.br_startblock != HOLESTARTBLOCK)) {
+		/*
+		 * Attach the dquots to the inode up front.
+		 */
+		if ((error = XFS_QM_DQATTACH(mp, ip, 0)))
+			return (error);
+
+		/*
+		 * There are blocks after the end of file.
+		 * Free them up now by truncating the file to
+		 * its current size.
+		 */
+		tp = xfs_trans_alloc(mp, XFS_TRANS_INACTIVE);
+
+		/*
+		 * Do the xfs_itruncate_start() call before
+		 * reserving any log space because
+		 * itruncate_start will call into the buffer
+		 * cache and we can't
+		 * do that within a transaction.
+		 */
+		xfs_ilock(ip, XFS_IOLOCK_EXCL);
+		xfs_itruncate_start(ip, XFS_ITRUNC_DEFINITE,
+				    ip->i_d.di_size);
+
+		error = xfs_trans_reserve(tp, 0,
+					  XFS_ITRUNCATE_LOG_RES(mp),
+					  0, XFS_TRANS_PERM_LOG_RES,
+					  XFS_ITRUNCATE_LOG_COUNT);
+		if (error) {
+			ASSERT(XFS_FORCED_SHUTDOWN(mp));
+			xfs_trans_cancel(tp, 0);
+			xfs_iunlock(ip, XFS_IOLOCK_EXCL);
+			return (error);
+		}
+
+		xfs_ilock(ip, XFS_ILOCK_EXCL);
+		xfs_trans_ijoin(tp, ip,
+				XFS_IOLOCK_EXCL |
+				XFS_ILOCK_EXCL);
+		xfs_trans_ihold(tp, ip);
+
+		error = xfs_itruncate_finish(&tp, ip,
+					     ip->i_d.di_size,
+					     XFS_DATA_FORK,
+					     0);
+		/*
+		 * If we get an error at this point we
+		 * simply don't bother truncating the file.
+		 */
+		if (error) {
+			xfs_trans_cancel(tp,
+					 (XFS_TRANS_RELEASE_LOG_RES |
+					  XFS_TRANS_ABORT));
+		} else {
+			error = xfs_trans_commit(tp,
+						XFS_TRANS_RELEASE_LOG_RES,
+						NULL);
+		}
+		xfs_iunlock(ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
+	}
+	return (error);
+}
+
+/*
+ * Free a symlink that has blocks associated with it.
+ */
+STATIC int
+xfs_inactive_symlink_rmt(
+	xfs_inode_t	*ip,
+	xfs_trans_t	**tpp)
+{
+	xfs_buf_t	*bp;
+	int		committed;
+	int		done;
+	int		error;
+	xfs_fsblock_t	first_block;
+	xfs_bmap_free_t	free_list;
+	int		i;
+	xfs_mount_t	*mp;
+	xfs_bmbt_irec_t	mval[SYMLINK_MAPS];
+	int		nmaps;
+	xfs_trans_t	*ntp;
+	int		size;
+	xfs_trans_t	*tp;
+
+	tp = *tpp;
+	mp = ip->i_mount;
+	ASSERT(ip->i_d.di_size > XFS_IFORK_DSIZE(ip));
+	/*
+	 * We're freeing a symlink that has some
+	 * blocks allocated to it.  Free the
+	 * blocks here.  We know that we've got
+	 * either 1 or 2 extents and that we can
+	 * free them all in one bunmapi call.
+	 */
+	ASSERT(ip->i_d.di_nextents > 0 && ip->i_d.di_nextents <= 2);
+	if ((error = xfs_trans_reserve(tp, 0, XFS_ITRUNCATE_LOG_RES(mp), 0,
+			XFS_TRANS_PERM_LOG_RES, XFS_ITRUNCATE_LOG_COUNT))) {
+		ASSERT(XFS_FORCED_SHUTDOWN(mp));
+		xfs_trans_cancel(tp, 0);
+		*tpp = NULL;
+		return error;
+	}
+	/*
+	 * Lock the inode, fix the size, and join it to the transaction.
+	 * Hold it so in the normal path, we still have it locked for
+	 * the second transaction.  In the error paths we need it
+	 * held so the cancel won't rele it, see below.
+	 */
+	xfs_ilock(ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
+	size = (int)ip->i_d.di_size;
+	ip->i_d.di_size = 0;
+	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
+	xfs_trans_ihold(tp, ip);
+	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+	/*
+	 * Find the block(s) so we can inval and unmap them.
+	 */
+	done = 0;
+	XFS_BMAP_INIT(&free_list, &first_block);
+	nmaps = sizeof(mval) / sizeof(mval[0]);
+	if ((error = xfs_bmapi(tp, ip, 0, XFS_B_TO_FSB(mp, size),
+			XFS_BMAPI_METADATA, &first_block, 0, mval, &nmaps,
+			&free_list)))
+		goto error0;
+	/*
+	 * Invalidate the block(s).
+	 */
+	for (i = 0; i < nmaps; i++) {
+		bp = xfs_trans_get_buf(tp, mp->m_ddev_targp,
+			XFS_FSB_TO_DADDR(mp, mval[i].br_startblock),
+			XFS_FSB_TO_BB(mp, mval[i].br_blockcount), 0);
+		xfs_trans_binval(tp, bp);
+	}
+	/*
+	 * Unmap the dead block(s) to the free_list.
+	 */
+	if ((error = xfs_bunmapi(tp, ip, 0, size, XFS_BMAPI_METADATA, nmaps,
+			&first_block, &free_list, &done)))
+		goto error1;
+	ASSERT(done);
+	/*
+	 * Commit the first transaction.  This logs the EFI and the inode.
+	 */
+	if ((error = xfs_bmap_finish(&tp, &free_list, first_block, &committed)))
+		goto error1;
+	/*
+	 * The transaction must have been committed, since there were
+	 * actually extents freed by xfs_bunmapi.  See xfs_bmap_finish.
+	 * The new tp has the extent freeing and EFDs.
+	 */
+	ASSERT(committed);
+	/*
+	 * The first xact was committed, so add the inode to the new one.
+	 * Mark it dirty so it will be logged and moved forward in the log as
+	 * part of every commit.
+	 */
+	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
+	xfs_trans_ihold(tp, ip);
+	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+	/*
+	 * Get a new, empty transaction to return to our caller.
+	 */
+	ntp = xfs_trans_dup(tp);
+	/*
+	 * Commit the transaction containing extent freeing and EFD's.
+	 * If we get an error on the commit here or on the reserve below,
+	 * we need to unlock the inode since the new transaction doesn't
+	 * have the inode attached.
+	 */
+	error = xfs_trans_commit(tp, 0, NULL);
+	tp = ntp;
+	if (error) {
+		ASSERT(XFS_FORCED_SHUTDOWN(mp));
+		goto error0;
+	}
+	/*
+	 * Remove the memory for extent descriptions (just bookkeeping).
+	 */
+	if (ip->i_df.if_bytes)
+		xfs_idata_realloc(ip, -ip->i_df.if_bytes, XFS_DATA_FORK);
+	ASSERT(ip->i_df.if_bytes == 0);
+	/*
+	 * Put an itruncate log reservation in the new transaction
+	 * for our caller.
+	 */
+	if ((error = xfs_trans_reserve(tp, 0, XFS_ITRUNCATE_LOG_RES(mp), 0,
+			XFS_TRANS_PERM_LOG_RES, XFS_ITRUNCATE_LOG_COUNT))) {
+		ASSERT(XFS_FORCED_SHUTDOWN(mp));
+		goto error0;
+	}
+	/*
+	 * Return with the inode locked but not joined to the transaction.
+	 */
+	*tpp = tp;
+	return 0;
+
+ error1:
+	xfs_bmap_cancel(&free_list);
+ error0:
+	/*
+	 * Have to come here with the inode locked and either
+	 * (held and in the transaction) or (not in the transaction).
+	 * If the inode isn't held then cancel would iput it, but
+	 * that's wrong since this is inactive and the vnode ref
+	 * count is 0 already.
+	 * Cancel won't do anything to the inode if held, but it still
+	 * needs to be locked until the cancel is done, if it was
+	 * joined to the transaction.
+	 */
+	xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT);
+	xfs_iunlock(ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
+	*tpp = NULL;
+	return error;
+
+}
+
+STATIC int
+xfs_inactive_symlink_local(
+	xfs_inode_t	*ip,
+	xfs_trans_t	**tpp)
+{
+	int		error;
+
+	ASSERT(ip->i_d.di_size <= XFS_IFORK_DSIZE(ip));
+	/*
+	 * We're freeing a symlink which fit into
+	 * the inode.  Just free the memory used
+	 * to hold the old symlink.
+	 */
+	error = xfs_trans_reserve(*tpp, 0,
+				  XFS_ITRUNCATE_LOG_RES(ip->i_mount),
+				  0, XFS_TRANS_PERM_LOG_RES,
+				  XFS_ITRUNCATE_LOG_COUNT);
+
+	if (error) {
+		xfs_trans_cancel(*tpp, 0);
+		*tpp = NULL;
+		return (error);
+	}
+	xfs_ilock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
+
+	/*
+	 * Zero length symlinks _can_ exist.
+	 */
+	if (ip->i_df.if_bytes > 0) {
+		xfs_idata_realloc(ip,
+				  -(ip->i_df.if_bytes),
+				  XFS_DATA_FORK);
+		ASSERT(ip->i_df.if_bytes == 0);
+	}
+	return (0);
+}
+
+/*
+ *
+ */
+STATIC int
+xfs_inactive_attrs(
+	xfs_inode_t	*ip,
+	xfs_trans_t	**tpp)
+{
+	xfs_trans_t	*tp;
+	int		error;
+	xfs_mount_t	*mp;
+
+	ASSERT(ismrlocked(&ip->i_iolock, MR_UPDATE));
+	tp = *tpp;
+	mp = ip->i_mount;
+	ASSERT(ip->i_d.di_forkoff != 0);
+	xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES, NULL);
+	xfs_iunlock(ip, XFS_ILOCK_EXCL);
+
+	error = xfs_attr_inactive(ip);
+	if (error) {
+		*tpp = NULL;
+		xfs_iunlock(ip, XFS_IOLOCK_EXCL);
+		return (error); /* goto out*/
+	}
+
+	tp = xfs_trans_alloc(mp, XFS_TRANS_INACTIVE);
+	error = xfs_trans_reserve(tp, 0,
+				  XFS_IFREE_LOG_RES(mp),
+				  0, XFS_TRANS_PERM_LOG_RES,
+				  XFS_INACTIVE_LOG_COUNT);
+	if (error) {
+		ASSERT(XFS_FORCED_SHUTDOWN(mp));
+		xfs_trans_cancel(tp, 0);
+		*tpp = NULL;
+		xfs_iunlock(ip, XFS_IOLOCK_EXCL);
+		return (error);
+	}
+
+	xfs_ilock(ip, XFS_ILOCK_EXCL);
+	xfs_trans_ijoin(tp, ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
+	xfs_trans_ihold(tp, ip);
+	xfs_idestroy_fork(ip, XFS_ATTR_FORK);
+
+	ASSERT(ip->i_d.di_anextents == 0);
+
+	*tpp = tp;
+	return (0);
+}
+
+STATIC int
+xfs_release(
+	bhv_desc_t	*bdp)
+{
+	xfs_inode_t	*ip;
+	vnode_t		*vp;
+	xfs_mount_t	*mp;
+	int		error;
+
+	vp = BHV_TO_VNODE(bdp);
+	ip = XFS_BHVTOI(bdp);
+
+	if ((vp->v_type != VREG) || (ip->i_d.di_mode == 0)) {
+		return 0;
+	}
+
+	/* If this is a read-only mount, don't do this (would generate I/O) */
+	if (vp->v_vfsp->vfs_flag & VFS_RDONLY)
+		return 0;
+
+#ifdef HAVE_REFCACHE
+	/* If we are in the NFS reference cache then don't do this now */
+	if (ip->i_refcache)
+		return 0;
+#endif
+
+	mp = ip->i_mount;
+
+	if (ip->i_d.di_nlink != 0) {
+		if ((((ip->i_d.di_mode & S_IFMT) == S_IFREG) &&
+		     ((ip->i_d.di_size > 0) || (VN_CACHED(vp) > 0)) &&
+		     (ip->i_df.if_flags & XFS_IFEXTENTS))  &&
+		    (!(ip->i_d.di_flags & (XFS_DIFLAG_PREALLOC|XFS_DIFLAG_APPEND)))) {
+			if ((error = xfs_inactive_free_eofblocks(mp, ip)))
+				return (error);
+			/* Update linux inode block count after free above */
+			LINVFS_GET_IP(vp)->i_blocks = XFS_FSB_TO_BB(mp,
+				ip->i_d.di_nblocks + ip->i_delayed_blks);
+		}
+	}
+
+	return 0;
+}
+
+/*
+ * xfs_inactive
+ *
+ * This is called when the vnode reference count for the vnode
+ * goes to zero.  If the file has been unlinked, then it must
+ * now be truncated.  Also, we clear all of the read-ahead state
+ * kept for the inode here since the file is now closed.
+ */
+STATIC int
+xfs_inactive(
+	bhv_desc_t	*bdp,
+	cred_t		*credp)
+{
+	xfs_inode_t	*ip;
+	vnode_t		*vp;
+	xfs_bmap_free_t	free_list; 
+	xfs_fsblock_t	first_block;
+	int		committed;
+	xfs_trans_t	*tp;
+	xfs_mount_t	*mp;
+	int		error;
+	int		truncate;
+
+	vp = BHV_TO_VNODE(bdp);
+	vn_trace_entry(vp, __FUNCTION__, (inst_t *)__return_address);
+
+	ip = XFS_BHVTOI(bdp);
+
+	/*
+	 * If the inode is already free, then there can be nothing
+	 * to clean up here.
+	 */
+	if (ip->i_d.di_mode == 0 || VN_BAD(vp)) {
+		ASSERT(ip->i_df.if_real_bytes == 0);
+		ASSERT(ip->i_df.if_broot_bytes == 0);
+		return VN_INACTIVE_CACHE;
+	}
+
+	/*
+	 * Only do a truncate if it's a regular file with
+	 * some actual space in it.  It's OK to look at the
+	 * inode's fields without the lock because we're the
+	 * only one with a reference to the inode.
+	 */
+	truncate = ((ip->i_d.di_nlink == 0) &&
+	    ((ip->i_d.di_size != 0) || (ip->i_d.di_nextents > 0)) &&
+	    ((ip->i_d.di_mode & S_IFMT) == S_IFREG));
+
+	mp = ip->i_mount;
+
+	if (ip->i_d.di_nlink == 0 &&
+	    DM_EVENT_ENABLED(vp->v_vfsp, ip, DM_EVENT_DESTROY)) {
+		(void) XFS_SEND_DESTROY(mp, vp, DM_RIGHT_NULL);
+	}
+
+	error = 0;
+
+	/* If this is a read-only mount, don't do this (would generate I/O) */
+	if (vp->v_vfsp->vfs_flag & VFS_RDONLY)
+		goto out;
+
+	if (ip->i_d.di_nlink != 0) {
+		if ((((ip->i_d.di_mode & S_IFMT) == S_IFREG) &&
+		     ((ip->i_d.di_size > 0) || (VN_CACHED(vp) > 0)) &&
+		     (ip->i_df.if_flags & XFS_IFEXTENTS))  &&
+		    (!(ip->i_d.di_flags & (XFS_DIFLAG_PREALLOC|XFS_DIFLAG_APPEND)) ||
+		     (ip->i_delayed_blks != 0))) {
+			if ((error = xfs_inactive_free_eofblocks(mp, ip)))
+				return (VN_INACTIVE_CACHE);
+			/* Update linux inode block count after free above */
+			LINVFS_GET_IP(vp)->i_blocks = XFS_FSB_TO_BB(mp,
+				ip->i_d.di_nblocks + ip->i_delayed_blks);
+		}
+		goto out;
+	}
+
+	ASSERT(ip->i_d.di_nlink == 0);
+
+	if ((error = XFS_QM_DQATTACH(mp, ip, 0)))
+		return (VN_INACTIVE_CACHE);
+
+	tp = xfs_trans_alloc(mp, XFS_TRANS_INACTIVE);
+	if (truncate) {
+		/*
+		 * Do the xfs_itruncate_start() call before
+		 * reserving any log space because itruncate_start
+		 * will call into the buffer cache and we can't
+		 * do that within a transaction.
+		 */
+		xfs_ilock(ip, XFS_IOLOCK_EXCL);
+
+		xfs_itruncate_start(ip, XFS_ITRUNC_DEFINITE, 0);
+
+		error = xfs_trans_reserve(tp, 0,
+					  XFS_ITRUNCATE_LOG_RES(mp),
+					  0, XFS_TRANS_PERM_LOG_RES,
+					  XFS_ITRUNCATE_LOG_COUNT);
+		if (error) {
+			/* Don't call itruncate_cleanup */
+			ASSERT(XFS_FORCED_SHUTDOWN(mp));
+			xfs_trans_cancel(tp, 0);
+			xfs_iunlock(ip, XFS_IOLOCK_EXCL);
+			return (VN_INACTIVE_CACHE);
+		}
+
+		xfs_ilock(ip, XFS_ILOCK_EXCL);
+		xfs_trans_ijoin(tp, ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
+		xfs_trans_ihold(tp, ip);
+
+		/*
+		 * normally, we have to run xfs_itruncate_finish sync.
+		 * But if filesystem is wsync and we're in the inactive
+		 * path, then we know that nlink == 0, and that the
+		 * xaction that made nlink == 0 is permanently committed
+		 * since xfs_remove runs as a synchronous transaction.
+		 */
+		error = xfs_itruncate_finish(&tp, ip, 0, XFS_DATA_FORK,
+				(!(mp->m_flags & XFS_MOUNT_WSYNC) ? 1 : 0));
+
+		if (error) {
+			xfs_trans_cancel(tp,
+				XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT);
+			xfs_iunlock(ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
+			return (VN_INACTIVE_CACHE);
+		}
+	} else if ((ip->i_d.di_mode & S_IFMT) == S_IFLNK) {
+
+		/*
+		 * If we get an error while cleaning up a
+		 * symlink we bail out.
+		 */
+		error = (ip->i_d.di_size > XFS_IFORK_DSIZE(ip)) ?
+			xfs_inactive_symlink_rmt(ip, &tp) :
+			xfs_inactive_symlink_local(ip, &tp);
+
+		if (error) {
+			ASSERT(tp == NULL);
+			return (VN_INACTIVE_CACHE);
+		}
+
+		xfs_trans_ijoin(tp, ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
+		xfs_trans_ihold(tp, ip);
+	} else {
+		error = xfs_trans_reserve(tp, 0,
+					  XFS_IFREE_LOG_RES(mp),
+					  0, XFS_TRANS_PERM_LOG_RES,
+					  XFS_INACTIVE_LOG_COUNT);
+		if (error) {
+			ASSERT(XFS_FORCED_SHUTDOWN(mp));
+			xfs_trans_cancel(tp, 0);
+			return (VN_INACTIVE_CACHE);
+		}
+
+		xfs_ilock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
+		xfs_trans_ijoin(tp, ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
+		xfs_trans_ihold(tp, ip);
+	}
+
+	/*
+	 * If there are attributes associated with the file
+	 * then blow them away now.  The code calls a routine
+	 * that recursively deconstructs the attribute fork.
+	 * We need to just commit the current transaction
+	 * because we can't use it for xfs_attr_inactive().
+	 */
+	if (ip->i_d.di_anextents > 0) {
+		error = xfs_inactive_attrs(ip, &tp);
+		/*
+		 * If we got an error, the transaction is already
+		 * cancelled, and the inode is unlocked. Just get out.
+		 */
+		 if (error)
+			 return (VN_INACTIVE_CACHE);
+	} else if (ip->i_afp) {
+		xfs_idestroy_fork(ip, XFS_ATTR_FORK);
+	}
+
+	/*
+	 * Free the inode.
+	 */
+	XFS_BMAP_INIT(&free_list, &first_block);
+	error = xfs_ifree(tp, ip, &free_list);
+	if (error) {
+		/*
+		 * If we fail to free the inode, shut down.  The cancel
+		 * might do that, we need to make sure.  Otherwise the
+		 * inode might be lost for a long time or forever.
+		 */
+		if (!XFS_FORCED_SHUTDOWN(mp)) {
+			cmn_err(CE_NOTE,
+		"xfs_inactive:	xfs_ifree() returned an error = %d on %s",
+				error, mp->m_fsname);
+			xfs_force_shutdown(mp, XFS_METADATA_IO_ERROR);
+		}
+		xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_ABORT);
+	} else {
+		/*
+		 * Credit the quota account(s). The inode is gone.
+		 */
+		XFS_TRANS_MOD_DQUOT_BYINO(mp, tp, ip, XFS_TRANS_DQ_ICOUNT, -1);
+
+		/*
+		 * Just ignore errors at this point.  There is
+		 * nothing we can do except to try to keep going.
+		 */
+		(void) xfs_bmap_finish(&tp,  &free_list, first_block,
+				       &committed);
+		(void) xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES, NULL);
+	}
+	/*
+	 * Release the dquots held by inode, if any.
+	 */
+	XFS_QM_DQDETACH(mp, ip);
+
+	xfs_iunlock(ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
+
+ out:
+	return VN_INACTIVE_CACHE;
+}
+
+
+/*
+ * xfs_lookup
+ */
+STATIC int
+xfs_lookup(
+	bhv_desc_t		*dir_bdp,
+	vname_t			*dentry,
+	vnode_t			**vpp,
+	int			flags,
+	vnode_t			*rdir,
+	cred_t			*credp)
+{
+	xfs_inode_t		*dp, *ip;
+	xfs_ino_t		e_inum;
+	int			error;
+	uint			lock_mode;
+	vnode_t			*dir_vp;
+
+	dir_vp = BHV_TO_VNODE(dir_bdp);
+	vn_trace_entry(dir_vp, __FUNCTION__, (inst_t *)__return_address);
+
+	dp = XFS_BHVTOI(dir_bdp);
+
+	if (XFS_FORCED_SHUTDOWN(dp->i_mount))
+		return XFS_ERROR(EIO);
+
+	lock_mode = xfs_ilock_map_shared(dp);
+	error = xfs_dir_lookup_int(dir_bdp, lock_mode, dentry, &e_inum, &ip);
+	if (!error) {
+		*vpp = XFS_ITOV(ip);
+		ITRACE(ip);
+	}
+	xfs_iunlock_map_shared(dp, lock_mode);
+	return error;
+}
+
+
+/*
+ * xfs_create (create a new file).
+ */
+STATIC int
+xfs_create(
+	bhv_desc_t		*dir_bdp,
+	vname_t			*dentry,
+	vattr_t			*vap,
+	vnode_t			**vpp,
+	cred_t			*credp)
+{
+	char			*name = VNAME(dentry);
+	vnode_t			*dir_vp;
+	xfs_inode_t		*dp, *ip;
+	vnode_t		        *vp=NULL;
+	xfs_trans_t		*tp;
+	xfs_mount_t	        *mp;
+	xfs_dev_t		rdev;
+	int                     error;
+	xfs_bmap_free_t		free_list;
+	xfs_fsblock_t		first_block;
+	boolean_t		dp_joined_to_trans;
+	int			dm_event_sent = 0;
+	uint			cancel_flags;
+	int			committed;
+	xfs_prid_t		prid;
+	struct xfs_dquot	*udqp, *gdqp;
+	uint			resblks;
+	int			dm_di_mode;
+	int			namelen;
+
+	ASSERT(!*vpp);
+	dir_vp = BHV_TO_VNODE(dir_bdp);
+	vn_trace_entry(dir_vp, __FUNCTION__, (inst_t *)__return_address);
+
+	dp = XFS_BHVTOI(dir_bdp);
+	mp = dp->i_mount;
+
+	dm_di_mode = vap->va_mode|VTTOIF(vap->va_type);
+	namelen = VNAMELEN(dentry);
+
+	if (DM_EVENT_ENABLED(dir_vp->v_vfsp, dp, DM_EVENT_CREATE)) {
+		error = XFS_SEND_NAMESP(mp, DM_EVENT_CREATE,
+				dir_vp, DM_RIGHT_NULL, NULL,
+				DM_RIGHT_NULL, name, NULL,
+				dm_di_mode, 0, 0);
+
+		if (error)
+			return error;
+		dm_event_sent = 1;
+	}
+
+	if (XFS_FORCED_SHUTDOWN(mp))
+		return XFS_ERROR(EIO);
+
+	/* Return through std_return after this point. */
+
+	udqp = gdqp = NULL;
+	if (vap->va_mask & XFS_AT_PROJID)
+		prid = (xfs_prid_t)vap->va_projid;
+	else
+		prid = (xfs_prid_t)dfltprid;
+
+	/*
+	 * Make sure that we have allocated dquot(s) on disk.
+	 */
+	error = XFS_QM_DQVOPALLOC(mp, dp,
+			current_fsuid(credp), current_fsgid(credp),
+			XFS_QMOPT_QUOTALL|XFS_QMOPT_INHERIT, &udqp, &gdqp);
+	if (error)
+		goto std_return;
+
+	ip = NULL;
+	dp_joined_to_trans = B_FALSE;
+
+	tp = xfs_trans_alloc(mp, XFS_TRANS_CREATE);
+	cancel_flags = XFS_TRANS_RELEASE_LOG_RES;
+	resblks = XFS_CREATE_SPACE_RES(mp, namelen);
+	/*
+	 * Initially assume that the file does not exist and
+	 * reserve the resources for that case.  If that is not
+	 * the case we'll drop the one we have and get a more
+	 * appropriate transaction later.
+	 */
+	error = xfs_trans_reserve(tp, resblks, XFS_CREATE_LOG_RES(mp), 0,
+			XFS_TRANS_PERM_LOG_RES, XFS_CREATE_LOG_COUNT);
+	if (error == ENOSPC) {
+		resblks = 0;
+		error = xfs_trans_reserve(tp, 0, XFS_CREATE_LOG_RES(mp), 0,
+				XFS_TRANS_PERM_LOG_RES, XFS_CREATE_LOG_COUNT);
+	}
+	if (error) {
+		cancel_flags = 0;
+		dp = NULL;
+		goto error_return;
+	}
+
+	xfs_ilock(dp, XFS_ILOCK_EXCL);
+
+	XFS_BMAP_INIT(&free_list, &first_block);
+
+	ASSERT(ip == NULL);
+
+	/*
+	 * Reserve disk quota and the inode.
+	 */
+	error = XFS_TRANS_RESERVE_QUOTA(mp, tp, udqp, gdqp, resblks, 1, 0);
+	if (error)
+		goto error_return;
+
+	if (resblks == 0 &&
+	    (error = XFS_DIR_CANENTER(mp, tp, dp, name, namelen)))
+		goto error_return;
+	rdev = (vap->va_mask & XFS_AT_RDEV) ? vap->va_rdev : 0;
+	error = xfs_dir_ialloc(&tp, dp,
+			MAKEIMODE(vap->va_type,vap->va_mode), 1,
+			rdev, credp, prid, resblks > 0,
+			&ip, &committed);
+	if (error) {
+		if (error == ENOSPC)
+			goto error_return;
+		goto abort_return;
+	}
+	ITRACE(ip);
+
+	/*
+	 * At this point, we've gotten a newly allocated inode.
+	 * It is locked (and joined to the transaction).
+	 */
+
+	ASSERT(ismrlocked (&ip->i_lock, MR_UPDATE));
+
+	/*
+	 * Now we join the directory inode to the transaction.
+	 * We do not do it earlier because xfs_dir_ialloc
+	 * might commit the previous transaction (and release
+	 * all the locks).
+	 */
+
+	VN_HOLD(dir_vp);
+	xfs_trans_ijoin(tp, dp, XFS_ILOCK_EXCL);
+	dp_joined_to_trans = B_TRUE;
+
+	error = XFS_DIR_CREATENAME(mp, tp, dp, name, namelen, ip->i_ino,
+		&first_block, &free_list,
+		resblks ? resblks - XFS_IALLOC_SPACE_RES(mp) : 0);
+	if (error) {
+		ASSERT(error != ENOSPC);
+		goto abort_return;
+	}
+	xfs_ichgtime(dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+	xfs_trans_log_inode(tp, dp, XFS_ILOG_CORE);
+
+	/*
+	 * If this is a synchronous mount, make sure that the
+	 * create transaction goes to disk before returning to
+	 * the user.
+	 */
+	if (mp->m_flags & XFS_MOUNT_WSYNC) {
+		xfs_trans_set_sync(tp);
+	}
+
+	dp->i_gen++;
+
+	/*
+	 * Attach the dquot(s) to the inodes and modify them incore.
+	 * These ids of the inode couldn't have changed since the new
+	 * inode has been locked ever since it was created.
+	 */
+	XFS_QM_DQVOPCREATE(mp, tp, ip, udqp, gdqp);
+
+	/*
+	 * xfs_trans_commit normally decrements the vnode ref count
+	 * when it unlocks the inode. Since we want to return the
+	 * vnode to the caller, we bump the vnode ref count now.
+	 */
+	IHOLD(ip);
+	vp = XFS_ITOV(ip);
+
+	error = xfs_bmap_finish(&tp, &free_list, first_block, &committed);
+	if (error) {
+		xfs_bmap_cancel(&free_list);
+		goto abort_rele;
+	}
+
+	error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES, NULL);
+	if (error) {
+		IRELE(ip);
+		tp = NULL;
+		goto error_return;
+	}
+
+	XFS_QM_DQRELE(mp, udqp);
+	XFS_QM_DQRELE(mp, gdqp);
+
+	/*
+	 * Propogate the fact that the vnode changed after the
+	 * xfs_inode locks have been released.
+	 */
+	VOP_VNODE_CHANGE(vp, VCHANGE_FLAGS_TRUNCATED, 3);
+
+	*vpp = vp;
+
+	/* Fallthrough to std_return with error = 0  */
+
+std_return:
+	if ( (*vpp || (error != 0 && dm_event_sent != 0)) &&
+			DM_EVENT_ENABLED(dir_vp->v_vfsp, XFS_BHVTOI(dir_bdp),
+							DM_EVENT_POSTCREATE)) {
+		(void) XFS_SEND_NAMESP(mp, DM_EVENT_POSTCREATE,
+			dir_vp, DM_RIGHT_NULL,
+			*vpp ? vp:NULL,
+			DM_RIGHT_NULL, name, NULL,
+			dm_di_mode, error, 0);
+	}
+	return error;
+
+ abort_return:
+	cancel_flags |= XFS_TRANS_ABORT;
+	/* FALLTHROUGH */
+ error_return:
+
+	if (tp != NULL)
+		xfs_trans_cancel(tp, cancel_flags);
+
+	if (!dp_joined_to_trans && (dp != NULL))
+		xfs_iunlock(dp, XFS_ILOCK_EXCL);
+	XFS_QM_DQRELE(mp, udqp);
+	XFS_QM_DQRELE(mp, gdqp);
+
+	goto std_return;
+
+ abort_rele:
+	/*
+	 * Wait until after the current transaction is aborted to
+	 * release the inode.  This prevents recursive transactions
+	 * and deadlocks from xfs_inactive.
+	 */
+	cancel_flags |= XFS_TRANS_ABORT;
+	xfs_trans_cancel(tp, cancel_flags);
+	IRELE(ip);
+
+	XFS_QM_DQRELE(mp, udqp);
+	XFS_QM_DQRELE(mp, gdqp);
+
+	goto std_return;
+}
+
+#ifdef DEBUG
+/*
+ * Some counters to see if (and how often) we are hitting some deadlock
+ * prevention code paths.
+ */
+
+int xfs_rm_locks;
+int xfs_rm_lock_delays;
+int xfs_rm_attempts;
+#endif
+
+/*
+ * The following routine will lock the inodes associated with the
+ * directory and the named entry in the directory. The locks are
+ * acquired in increasing inode number.
+ *
+ * If the entry is "..", then only the directory is locked. The
+ * vnode ref count will still include that from the .. entry in
+ * this case.
+ *
+ * There is a deadlock we need to worry about. If the locked directory is
+ * in the AIL, it might be blocking up the log. The next inode we lock
+ * could be already locked by another thread waiting for log space (e.g
+ * a permanent log reservation with a long running transaction (see
+ * xfs_itruncate_finish)). To solve this, we must check if the directory
+ * is in the ail and use lock_nowait. If we can't lock, we need to
+ * drop the inode lock on the directory and try again. xfs_iunlock will
+ * potentially push the tail if we were holding up the log.
+ */
+STATIC int
+xfs_lock_dir_and_entry(
+	xfs_inode_t	*dp,
+	vname_t		*dentry,
+	xfs_inode_t	*ip)	/* inode of entry 'name' */
+{
+	int		attempts;
+	xfs_ino_t	e_inum;
+	xfs_inode_t	*ips[2];
+	xfs_log_item_t	*lp;
+
+#ifdef DEBUG
+	xfs_rm_locks++;
+#endif
+	attempts = 0;
+
+again:
+	xfs_ilock(dp, XFS_ILOCK_EXCL);
+
+	e_inum = ip->i_ino;
+
+	ITRACE(ip);
+
+	/*
+	 * We want to lock in increasing inum. Since we've already
+	 * acquired the lock on the directory, we may need to release
+	 * if if the inum of the entry turns out to be less.
+	 */
+	if (e_inum > dp->i_ino) {
+		/*
+		 * We are already in the right order, so just
+		 * lock on the inode of the entry.
+		 * We need to use nowait if dp is in the AIL.
+		 */
+
+		lp = (xfs_log_item_t *)dp->i_itemp;
+		if (lp && (lp->li_flags & XFS_LI_IN_AIL)) {
+			if (!xfs_ilock_nowait(ip, XFS_ILOCK_EXCL)) {
+				attempts++;
+#ifdef DEBUG
+				xfs_rm_attempts++;
+#endif
+
+				/*
+				 * Unlock dp and try again.
+				 * xfs_iunlock will try to push the tail
+				 * if the inode is in the AIL.
+				 */
+
+				xfs_iunlock(dp, XFS_ILOCK_EXCL);
+
+				if ((attempts % 5) == 0) {
+					delay(1); /* Don't just spin the CPU */
+#ifdef DEBUG
+					xfs_rm_lock_delays++;
+#endif
+				}
+				goto again;
+			}
+		} else {
+			xfs_ilock(ip, XFS_ILOCK_EXCL);
+		}
+	} else if (e_inum < dp->i_ino) {
+		xfs_iunlock(dp, XFS_ILOCK_EXCL);
+
+		ips[0] = ip;
+		ips[1] = dp;
+		xfs_lock_inodes(ips, 2, 0, XFS_ILOCK_EXCL);
+	}
+	/* else	 e_inum == dp->i_ino */
+	/*     This can happen if we're asked to lock /x/..
+	 *     the entry is "..", which is also the parent directory.
+	 */
+
+	return 0;
+}
+
+#ifdef DEBUG
+int xfs_locked_n;
+int xfs_small_retries;
+int xfs_middle_retries;
+int xfs_lots_retries;
+int xfs_lock_delays;
+#endif
+
+/*
+ * The following routine will lock n inodes in exclusive mode.
+ * We assume the caller calls us with the inodes in i_ino order.
+ *
+ * We need to detect deadlock where an inode that we lock
+ * is in the AIL and we start waiting for another inode that is locked
+ * by a thread in a long running transaction (such as truncate). This can
+ * result in deadlock since the long running trans might need to wait
+ * for the inode we just locked in order to push the tail and free space
+ * in the log.
+ */
+void
+xfs_lock_inodes(
+	xfs_inode_t	**ips,
+	int		inodes,
+	int		first_locked,
+	uint		lock_mode)
+{
+	int		attempts = 0, i, j, try_lock;
+	xfs_log_item_t	*lp;
+
+	ASSERT(ips && (inodes >= 2)); /* we need at least two */
+
+	if (first_locked) {
+		try_lock = 1;
+		i = 1;
+	} else {
+		try_lock = 0;
+		i = 0;
+	}
+
+again:
+	for (; i < inodes; i++) {
+		ASSERT(ips[i]);
+
+		if (i && (ips[i] == ips[i-1]))	/* Already locked */
+			continue;
+
+		/*
+		 * If try_lock is not set yet, make sure all locked inodes
+		 * are not in the AIL.
+		 * If any are, set try_lock to be used later.
+		 */
+
+		if (!try_lock) {
+			for (j = (i - 1); j >= 0 && !try_lock; j--) {
+				lp = (xfs_log_item_t *)ips[j]->i_itemp;
+				if (lp && (lp->li_flags & XFS_LI_IN_AIL)) {
+					try_lock++;
+				}
+			}
+		}
+
+		/*
+		 * If any of the previous locks we have locked is in the AIL,
+		 * we must TRY to get the second and subsequent locks. If
+		 * we can't get any, we must release all we have
+		 * and try again.
+		 */
+
+		if (try_lock) {
+			/* try_lock must be 0 if i is 0. */
+			/*
+			 * try_lock means we have an inode locked
+			 * that is in the AIL.
+			 */
+			ASSERT(i != 0);
+			if (!xfs_ilock_nowait(ips[i], lock_mode)) {
+				attempts++;
+
+				/*
+				 * Unlock all previous guys and try again.
+				 * xfs_iunlock will try to push the tail
+				 * if the inode is in the AIL.
+				 */
+
+				for(j = i - 1; j >= 0; j--) {
+
+					/*
+					 * Check to see if we've already
+					 * unlocked this one.
+					 * Not the first one going back,
+					 * and the inode ptr is the same.
+					 */
+					if ((j != (i - 1)) && ips[j] ==
+								ips[j+1])
+						continue;
+
+					xfs_iunlock(ips[j], lock_mode);
+				}
+
+				if ((attempts % 5) == 0) {
+					delay(1); /* Don't just spin the CPU */
+#ifdef DEBUG
+					xfs_lock_delays++;
+#endif
+				}
+				i = 0;
+				try_lock = 0;
+				goto again;
+			}
+		} else {
+			xfs_ilock(ips[i], lock_mode);
+		}
+	}
+
+#ifdef DEBUG
+	if (attempts) {
+		if (attempts < 5) xfs_small_retries++;
+		else if (attempts < 100) xfs_middle_retries++;
+		else xfs_lots_retries++;
+	} else {
+		xfs_locked_n++;
+	}
+#endif
+}
+
+#ifdef	DEBUG
+#define	REMOVE_DEBUG_TRACE(x)	{remove_which_error_return = (x);}
+int remove_which_error_return = 0;
+#else /* ! DEBUG */
+#define	REMOVE_DEBUG_TRACE(x)
+#endif	/* ! DEBUG */
+
+
+/*
+ * xfs_remove
+ *
+ */
+STATIC int
+xfs_remove(
+	bhv_desc_t		*dir_bdp,
+	vname_t			*dentry,
+	cred_t			*credp)
+{
+	vnode_t			*dir_vp;
+	char			*name = VNAME(dentry);
+	xfs_inode_t             *dp, *ip;
+	xfs_trans_t             *tp = NULL;
+	xfs_mount_t		*mp;
+	int                     error = 0;
+	xfs_bmap_free_t         free_list;
+	xfs_fsblock_t           first_block;
+	int			cancel_flags;
+	int			committed;
+	int			dm_di_mode = 0;
+	int			link_zero;
+	uint			resblks;
+	int			namelen;
+
+	dir_vp = BHV_TO_VNODE(dir_bdp);
+	vn_trace_entry(dir_vp, __FUNCTION__, (inst_t *)__return_address);
+
+	dp = XFS_BHVTOI(dir_bdp);
+	mp = dp->i_mount;
+
+	if (XFS_FORCED_SHUTDOWN(mp))
+		return XFS_ERROR(EIO);
+
+	namelen = VNAMELEN(dentry);
+
+	if (DM_EVENT_ENABLED(dir_vp->v_vfsp, dp, DM_EVENT_REMOVE)) {
+		error = XFS_SEND_NAMESP(mp, DM_EVENT_REMOVE, dir_vp,
+					DM_RIGHT_NULL, NULL, DM_RIGHT_NULL,
+					name, NULL, 0, 0, 0);
+		if (error)
+			return error;
+	}
+
+	/* From this point on, return through std_return */
+	ip = NULL;
+
+	/*
+	 * We need to get a reference to ip before we get our log
+	 * reservation. The reason for this is that we cannot call
+	 * xfs_iget for an inode for which we do not have a reference
+	 * once we've acquired a log reservation. This is because the
+	 * inode we are trying to get might be in xfs_inactive going
+	 * for a log reservation. Since we'll have to wait for the
+	 * inactive code to complete before returning from xfs_iget,
+	 * we need to make sure that we don't have log space reserved
+	 * when we call xfs_iget.  Instead we get an unlocked referece
+	 * to the inode before getting our log reservation.
+	 */
+	error = xfs_get_dir_entry(dentry, &ip);
+	if (error) {
+		REMOVE_DEBUG_TRACE(__LINE__);
+		goto std_return;
+	}
+
+	dm_di_mode = ip->i_d.di_mode;
+
+	vn_trace_entry(XFS_ITOV(ip), __FUNCTION__, (inst_t *)__return_address);
+
+	ITRACE(ip);
+
+	error = XFS_QM_DQATTACH(mp, dp, 0);
+	if (!error && dp != ip)
+		error = XFS_QM_DQATTACH(mp, ip, 0);
+	if (error) {
+		REMOVE_DEBUG_TRACE(__LINE__);
+		IRELE(ip);
+		goto std_return;
+	}
+
+	tp = xfs_trans_alloc(mp, XFS_TRANS_REMOVE);
+	cancel_flags = XFS_TRANS_RELEASE_LOG_RES;
+	/*
+	 * We try to get the real space reservation first,
+	 * allowing for directory btree deletion(s) implying
+	 * possible bmap insert(s).  If we can't get the space
+	 * reservation then we use 0 instead, and avoid the bmap
+	 * btree insert(s) in the directory code by, if the bmap
+	 * insert tries to happen, instead trimming the LAST
+	 * block from the directory.
+	 */
+	resblks = XFS_REMOVE_SPACE_RES(mp);
+	error = xfs_trans_reserve(tp, resblks, XFS_REMOVE_LOG_RES(mp), 0,
+			XFS_TRANS_PERM_LOG_RES, XFS_REMOVE_LOG_COUNT);
+	if (error == ENOSPC) {
+		resblks = 0;
+		error = xfs_trans_reserve(tp, 0, XFS_REMOVE_LOG_RES(mp), 0,
+				XFS_TRANS_PERM_LOG_RES, XFS_REMOVE_LOG_COUNT);
+	}
+	if (error) {
+		ASSERT(error != ENOSPC);
+		REMOVE_DEBUG_TRACE(__LINE__);
+		xfs_trans_cancel(tp, 0);
+		IRELE(ip);
+		return error;
+	}
+
+	error = xfs_lock_dir_and_entry(dp, dentry, ip);
+	if (error) {
+		REMOVE_DEBUG_TRACE(__LINE__);
+		xfs_trans_cancel(tp, cancel_flags);
+		IRELE(ip);
+		goto std_return;
+	}
+
+	/*
+	 * At this point, we've gotten both the directory and the entry
+	 * inodes locked.
+	 */
+	xfs_trans_ijoin(tp, dp, XFS_ILOCK_EXCL);
+	if (dp != ip) {
+		/*
+		 * Increment vnode ref count only in this case since
+		 * there's an extra vnode reference in the case where
+		 * dp == ip.
+		 */
+		IHOLD(dp);
+		xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+	}
+
+	/*
+	 * Entry must exist since we did a lookup in xfs_lock_dir_and_entry.
+	 */
+	XFS_BMAP_INIT(&free_list, &first_block);
+	error = XFS_DIR_REMOVENAME(mp, tp, dp, name, namelen, ip->i_ino,
+		&first_block, &free_list, 0);
+	if (error) {
+		ASSERT(error != ENOENT);
+		REMOVE_DEBUG_TRACE(__LINE__);
+		goto error1;
+	}
+	xfs_ichgtime(dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+
+	dp->i_gen++;
+	xfs_trans_log_inode(tp, dp, XFS_ILOG_CORE);
+
+	error = xfs_droplink(tp, ip);
+	if (error) {
+		REMOVE_DEBUG_TRACE(__LINE__);
+		goto error1;
+	}
+
+	/* Determine if this is the last link while
+	 * we are in the transaction.
+	 */
+	link_zero = (ip)->i_d.di_nlink==0;
+
+	/*
+	 * Take an extra ref on the inode so that it doesn't
+	 * go to xfs_inactive() from within the commit.
+	 */
+	IHOLD(ip);
+
+	/*
+	 * If this is a synchronous mount, make sure that the
+	 * remove transaction goes to disk before returning to
+	 * the user.
+	 */
+	if (mp->m_flags & XFS_MOUNT_WSYNC) {
+		xfs_trans_set_sync(tp);
+	}
+
+	error = xfs_bmap_finish(&tp, &free_list, first_block, &committed);
+	if (error) {
+		REMOVE_DEBUG_TRACE(__LINE__);
+		goto error_rele;
+	}
+
+	error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES, NULL);
+	if (error) {
+		IRELE(ip);
+		goto std_return;
+	}
+
+	/*
+	 * Before we drop our extra reference to the inode, purge it
+	 * from the refcache if it is there.  By waiting until afterwards
+	 * to do the IRELE, we ensure that we won't go inactive in the
+	 * xfs_refcache_purge_ip routine (although that would be OK).
+	 */
+	xfs_refcache_purge_ip(ip);
+
+	vn_trace_exit(XFS_ITOV(ip), __FUNCTION__, (inst_t *)__return_address);
+
+	/*
+	 * Let interposed file systems know about removed links.
+	 */
+	VOP_LINK_REMOVED(XFS_ITOV(ip), dir_vp, link_zero);
+
+	IRELE(ip);
+
+/*	Fall through to std_return with error = 0 */
+ std_return:
+	if (DM_EVENT_ENABLED(dir_vp->v_vfsp, dp,
+						DM_EVENT_POSTREMOVE)) {
+		(void) XFS_SEND_NAMESP(mp, DM_EVENT_POSTREMOVE,
+				dir_vp, DM_RIGHT_NULL,
+				NULL, DM_RIGHT_NULL,
+				name, NULL, dm_di_mode, error, 0);
+	}
+	return error;
+
+ error1:
+	xfs_bmap_cancel(&free_list);
+	cancel_flags |= XFS_TRANS_ABORT;
+	xfs_trans_cancel(tp, cancel_flags);
+	goto std_return;
+
+ error_rele:
+	/*
+	 * In this case make sure to not release the inode until after
+	 * the current transaction is aborted.  Releasing it beforehand
+	 * can cause us to go to xfs_inactive and start a recursive
+	 * transaction which can easily deadlock with the current one.
+	 */
+	xfs_bmap_cancel(&free_list);
+	cancel_flags |= XFS_TRANS_ABORT;
+	xfs_trans_cancel(tp, cancel_flags);
+
+	/*
+	 * Before we drop our extra reference to the inode, purge it
+	 * from the refcache if it is there.  By waiting until afterwards
+	 * to do the IRELE, we ensure that we won't go inactive in the
+	 * xfs_refcache_purge_ip routine (although that would be OK).
+	 */
+	xfs_refcache_purge_ip(ip);
+
+	IRELE(ip);
+
+	goto std_return;
+}
+
+
+/*
+ * xfs_link
+ *
+ */
+STATIC int
+xfs_link(
+	bhv_desc_t		*target_dir_bdp,
+	vnode_t			*src_vp,
+	vname_t			*dentry,
+	cred_t			*credp)
+{
+	xfs_inode_t		*tdp, *sip;
+	xfs_trans_t		*tp;
+	xfs_mount_t		*mp;
+	xfs_inode_t		*ips[2];
+	int			error;
+	xfs_bmap_free_t         free_list;
+	xfs_fsblock_t           first_block;
+	int			cancel_flags;
+	int			committed;
+	vnode_t			*target_dir_vp;
+	bhv_desc_t		*src_bdp;
+	int			resblks;
+	char			*target_name = VNAME(dentry);
+	int			target_namelen;
+
+	target_dir_vp = BHV_TO_VNODE(target_dir_bdp);
+	vn_trace_entry(target_dir_vp, __FUNCTION__, (inst_t *)__return_address);
+	vn_trace_entry(src_vp, __FUNCTION__, (inst_t *)__return_address);
+
+	target_namelen = VNAMELEN(dentry);
+	if (src_vp->v_type == VDIR)
+		return XFS_ERROR(EPERM);
+
+	/*
+	 * For now, manually find the XFS behavior descriptor for
+	 * the source vnode.  If it doesn't exist then something
+	 * is wrong and we should just return an error.
+	 * Eventually we need to figure out how link is going to
+	 * work in the face of stacked vnodes.
+	 */
+	src_bdp = vn_bhv_lookup_unlocked(VN_BHV_HEAD(src_vp), &xfs_vnodeops);
+	if (src_bdp == NULL) {
+		return XFS_ERROR(EXDEV);
+	}
+	sip = XFS_BHVTOI(src_bdp);
+	tdp = XFS_BHVTOI(target_dir_bdp);
+	mp = tdp->i_mount;
+	if (XFS_FORCED_SHUTDOWN(mp))
+		return XFS_ERROR(EIO);
+
+	if (DM_EVENT_ENABLED(src_vp->v_vfsp, tdp, DM_EVENT_LINK)) {
+		error = XFS_SEND_NAMESP(mp, DM_EVENT_LINK,
+					target_dir_vp, DM_RIGHT_NULL,
+					src_vp, DM_RIGHT_NULL,
+					target_name, NULL, 0, 0, 0);
+		if (error)
+			return error;
+	}
+
+	/* Return through std_return after this point. */
+
+	error = XFS_QM_DQATTACH(mp, sip, 0);
+	if (!error && sip != tdp)
+		error = XFS_QM_DQATTACH(mp, tdp, 0);
+	if (error)
+		goto std_return;
+
+	tp = xfs_trans_alloc(mp, XFS_TRANS_LINK);
+	cancel_flags = XFS_TRANS_RELEASE_LOG_RES;
+	resblks = XFS_LINK_SPACE_RES(mp, target_namelen);
+	error = xfs_trans_reserve(tp, resblks, XFS_LINK_LOG_RES(mp), 0,
+			XFS_TRANS_PERM_LOG_RES, XFS_LINK_LOG_COUNT);
+	if (error == ENOSPC) {
+		resblks = 0;
+		error = xfs_trans_reserve(tp, 0, XFS_LINK_LOG_RES(mp), 0,
+				XFS_TRANS_PERM_LOG_RES, XFS_LINK_LOG_COUNT);
+	}
+	if (error) {
+		cancel_flags = 0;
+		goto error_return;
+	}
+
+	if (sip->i_ino < tdp->i_ino) {
+		ips[0] = sip;
+		ips[1] = tdp;
+	} else {
+		ips[0] = tdp;
+		ips[1] = sip;
+	}
+
+	xfs_lock_inodes(ips, 2, 0, XFS_ILOCK_EXCL);
+
+	/*
+	 * Increment vnode ref counts since xfs_trans_commit &
+	 * xfs_trans_cancel will both unlock the inodes and
+	 * decrement the associated ref counts.
+	 */
+	VN_HOLD(src_vp);
+	VN_HOLD(target_dir_vp);
+	xfs_trans_ijoin(tp, sip, XFS_ILOCK_EXCL);
+	xfs_trans_ijoin(tp, tdp, XFS_ILOCK_EXCL);
+
+	/*
+	 * If the source has too many links, we can't make any more to it.
+	 */
+	if (sip->i_d.di_nlink >= XFS_MAXLINK) {
+		error = XFS_ERROR(EMLINK);
+		goto error_return;
+	}
+
+	if (resblks == 0 &&
+	    (error = XFS_DIR_CANENTER(mp, tp, tdp, target_name,
+			target_namelen)))
+		goto error_return;
+
+	XFS_BMAP_INIT(&free_list, &first_block);
+
+	error = XFS_DIR_CREATENAME(mp, tp, tdp, target_name, target_namelen,
+				   sip->i_ino, &first_block, &free_list,
+				   resblks);
+	if (error)
+		goto abort_return;
+	xfs_ichgtime(tdp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+	tdp->i_gen++;
+	xfs_trans_log_inode(tp, tdp, XFS_ILOG_CORE);
+
+	error = xfs_bumplink(tp, sip);
+	if (error) {
+		goto abort_return;
+	}
+
+	/*
+	 * If this is a synchronous mount, make sure that the
+	 * link transaction goes to disk before returning to
+	 * the user.
+	 */
+	if (mp->m_flags & XFS_MOUNT_WSYNC) {
+		xfs_trans_set_sync(tp);
+	}
+
+	error = xfs_bmap_finish (&tp, &free_list, first_block, &committed);
+	if (error) {
+		xfs_bmap_cancel(&free_list);
+		goto abort_return;
+	}
+
+	error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES, NULL);
+	if (error) {
+		goto std_return;
+	}
+
+	/* Fall through to std_return with error = 0. */
+std_return:
+	if (DM_EVENT_ENABLED(src_vp->v_vfsp, sip,
+						DM_EVENT_POSTLINK)) {
+		(void) XFS_SEND_NAMESP(mp, DM_EVENT_POSTLINK,
+				target_dir_vp, DM_RIGHT_NULL,
+				src_vp, DM_RIGHT_NULL,
+				target_name, NULL, 0, error, 0);
+	}
+	return error;
+
+ abort_return:
+	cancel_flags |= XFS_TRANS_ABORT;
+	/* FALLTHROUGH */
+ error_return:
+	xfs_trans_cancel(tp, cancel_flags);
+
+	goto std_return;
+}
+/*
+ * xfs_mkdir
+ *
+ */
+STATIC int
+xfs_mkdir(
+	bhv_desc_t		*dir_bdp,
+	vname_t			*dentry,
+	vattr_t			*vap,
+	vnode_t			**vpp,
+	cred_t			*credp)
+{
+	char			*dir_name = VNAME(dentry);
+	xfs_inode_t             *dp;
+	xfs_inode_t		*cdp;	/* inode of created dir */
+	vnode_t			*cvp;	/* vnode of created dir */
+	xfs_trans_t		*tp;
+	xfs_mount_t		*mp;
+	int			cancel_flags;
+	int			error;
+	int			committed;
+	xfs_bmap_free_t         free_list;
+	xfs_fsblock_t           first_block;
+	vnode_t			*dir_vp;
+	boolean_t		dp_joined_to_trans;
+	boolean_t		created = B_FALSE;
+	int			dm_event_sent = 0;
+	xfs_prid_t		prid;
+	struct xfs_dquot	*udqp, *gdqp;
+	uint			resblks;
+	int			dm_di_mode;
+	int			dir_namelen;
+
+	dir_vp = BHV_TO_VNODE(dir_bdp);
+	dp = XFS_BHVTOI(dir_bdp);
+	mp = dp->i_mount;
+
+	if (XFS_FORCED_SHUTDOWN(mp))
+		return XFS_ERROR(EIO);
+
+	dir_namelen = VNAMELEN(dentry);
+
+	tp = NULL;
+	dp_joined_to_trans = B_FALSE;
+	dm_di_mode = vap->va_mode|VTTOIF(vap->va_type);
+
+	if (DM_EVENT_ENABLED(dir_vp->v_vfsp, dp, DM_EVENT_CREATE)) {
+		error = XFS_SEND_NAMESP(mp, DM_EVENT_CREATE,
+					dir_vp, DM_RIGHT_NULL, NULL,
+					DM_RIGHT_NULL, dir_name, NULL,
+					dm_di_mode, 0, 0);
+		if (error)
+			return error;
+		dm_event_sent = 1;
+	}
+
+	/* Return through std_return after this point. */
+
+	vn_trace_entry(dir_vp, __FUNCTION__, (inst_t *)__return_address);
+
+	mp = dp->i_mount;
+	udqp = gdqp = NULL;
+	if (vap->va_mask & XFS_AT_PROJID)
+		prid = (xfs_prid_t)vap->va_projid;
+	else
+		prid = (xfs_prid_t)dfltprid;
+
+	/*
+	 * Make sure that we have allocated dquot(s) on disk.
+	 */
+	error = XFS_QM_DQVOPALLOC(mp, dp,
+			current_fsuid(credp), current_fsgid(credp),
+			XFS_QMOPT_QUOTALL | XFS_QMOPT_INHERIT, &udqp, &gdqp);
+	if (error)
+		goto std_return;
+
+	tp = xfs_trans_alloc(mp, XFS_TRANS_MKDIR);
+	cancel_flags = XFS_TRANS_RELEASE_LOG_RES;
+	resblks = XFS_MKDIR_SPACE_RES(mp, dir_namelen);
+	error = xfs_trans_reserve(tp, resblks, XFS_MKDIR_LOG_RES(mp), 0,
+				  XFS_TRANS_PERM_LOG_RES, XFS_MKDIR_LOG_COUNT);
+	if (error == ENOSPC) {
+		resblks = 0;
+		error = xfs_trans_reserve(tp, 0, XFS_MKDIR_LOG_RES(mp), 0,
+					  XFS_TRANS_PERM_LOG_RES,
+					  XFS_MKDIR_LOG_COUNT);
+	}
+	if (error) {
+		cancel_flags = 0;
+		dp = NULL;
+		goto error_return;
+	}
+
+	xfs_ilock(dp, XFS_ILOCK_EXCL);
+
+	/*
+	 * Check for directory link count overflow.
+	 */
+	if (dp->i_d.di_nlink >= XFS_MAXLINK) {
+		error = XFS_ERROR(EMLINK);
+		goto error_return;
+	}
+
+	/*
+	 * Reserve disk quota and the inode.
+	 */
+	error = XFS_TRANS_RESERVE_QUOTA(mp, tp, udqp, gdqp, resblks, 1, 0);
+	if (error)
+		goto error_return;
+
+	if (resblks == 0 &&
+	    (error = XFS_DIR_CANENTER(mp, tp, dp, dir_name, dir_namelen)))
+		goto error_return;
+	/*
+	 * create the directory inode.
+	 */
+	error = xfs_dir_ialloc(&tp, dp,
+			MAKEIMODE(vap->va_type,vap->va_mode), 2,
+			0, credp, prid, resblks > 0,
+		&cdp, NULL);
+	if (error) {
+		if (error == ENOSPC)
+			goto error_return;
+		goto abort_return;
+	}
+	ITRACE(cdp);
+
+	/*
+	 * Now we add the directory inode to the transaction.
+	 * We waited until now since xfs_dir_ialloc might start
+	 * a new transaction.  Had we joined the transaction
+	 * earlier, the locks might have gotten released.
+	 */
+	VN_HOLD(dir_vp);
+	xfs_trans_ijoin(tp, dp, XFS_ILOCK_EXCL);
+	dp_joined_to_trans = B_TRUE;
+
+	XFS_BMAP_INIT(&free_list, &first_block);
+
+	error = XFS_DIR_CREATENAME(mp, tp, dp, dir_name, dir_namelen,
+			cdp->i_ino, &first_block, &free_list,
+			resblks ? resblks - XFS_IALLOC_SPACE_RES(mp) : 0);
+	if (error) {
+		ASSERT(error != ENOSPC);
+		goto error1;
+	}
+	xfs_ichgtime(dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+
+	/*
+	 * Bump the in memory version number of the parent directory
+	 * so that other processes accessing it will recognize that
+	 * the directory has changed.
+	 */
+	dp->i_gen++;
+
+	error = XFS_DIR_INIT(mp, tp, cdp, dp);
+	if (error) {
+		goto error2;
+	}
+
+	cdp->i_gen = 1;
+	error = xfs_bumplink(tp, dp);
+	if (error) {
+		goto error2;
+	}
+
+	cvp = XFS_ITOV(cdp);
+
+	created = B_TRUE;
+
+	*vpp = cvp;
+	IHOLD(cdp);
+
+	/*
+	 * Attach the dquots to the new inode and modify the icount incore.
+	 */
+	XFS_QM_DQVOPCREATE(mp, tp, cdp, udqp, gdqp);
+
+	/*
+	 * If this is a synchronous mount, make sure that the
+	 * mkdir transaction goes to disk before returning to
+	 * the user.
+	 */
+	if (mp->m_flags & XFS_MOUNT_WSYNC) {
+		xfs_trans_set_sync(tp);
+	}
+
+	error = xfs_bmap_finish(&tp, &free_list, first_block, &committed);
+	if (error) {
+		IRELE(cdp);
+		goto error2;
+	}
+
+	error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES, NULL);
+	XFS_QM_DQRELE(mp, udqp);
+	XFS_QM_DQRELE(mp, gdqp);
+	if (error) {
+		IRELE(cdp);
+	}
+
+	/* Fall through to std_return with error = 0 or errno from
+	 * xfs_trans_commit. */
+
+std_return:
+	if ( (created || (error != 0 && dm_event_sent != 0)) &&
+			DM_EVENT_ENABLED(dir_vp->v_vfsp, XFS_BHVTOI(dir_bdp),
+						DM_EVENT_POSTCREATE)) {
+		(void) XFS_SEND_NAMESP(mp, DM_EVENT_POSTCREATE,
+					dir_vp, DM_RIGHT_NULL,
+					created ? XFS_ITOV(cdp):NULL,
+					DM_RIGHT_NULL,
+					dir_name, NULL,
+					dm_di_mode, error, 0);
+	}
+	return error;
+
+ error2:
+ error1:
+	xfs_bmap_cancel(&free_list);
+ abort_return:
+	cancel_flags |= XFS_TRANS_ABORT;
+ error_return:
+	xfs_trans_cancel(tp, cancel_flags);
+	XFS_QM_DQRELE(mp, udqp);
+	XFS_QM_DQRELE(mp, gdqp);
+
+	if (!dp_joined_to_trans && (dp != NULL)) {
+		xfs_iunlock(dp, XFS_ILOCK_EXCL);
+	}
+
+	goto std_return;
+}
+
+
+/*
+ * xfs_rmdir
+ *
+ */
+STATIC int
+xfs_rmdir(
+	bhv_desc_t		*dir_bdp,
+	vname_t			*dentry,
+	cred_t			*credp)
+{
+	char			*name = VNAME(dentry);
+	xfs_inode_t             *dp;
+	xfs_inode_t             *cdp;   /* child directory */
+	xfs_trans_t             *tp;
+	xfs_mount_t		*mp;
+	int                     error;
+	xfs_bmap_free_t         free_list;
+	xfs_fsblock_t           first_block;
+	int			cancel_flags;
+	int			committed;
+	vnode_t			*dir_vp;
+	int			dm_di_mode = 0;
+	int			last_cdp_link;
+	int			namelen;
+	uint			resblks;
+
+	dir_vp = BHV_TO_VNODE(dir_bdp);
+	dp = XFS_BHVTOI(dir_bdp);
+	mp = dp->i_mount;
+
+	vn_trace_entry(dir_vp, __FUNCTION__, (inst_t *)__return_address);
+
+	if (XFS_FORCED_SHUTDOWN(XFS_BHVTOI(dir_bdp)->i_mount))
+		return XFS_ERROR(EIO);
+	namelen = VNAMELEN(dentry);
+
+	if (DM_EVENT_ENABLED(dir_vp->v_vfsp, dp, DM_EVENT_REMOVE)) {
+		error = XFS_SEND_NAMESP(mp, DM_EVENT_REMOVE,
+					dir_vp, DM_RIGHT_NULL,
+					NULL, DM_RIGHT_NULL,
+					name, NULL, 0, 0, 0);
+		if (error)
+			return XFS_ERROR(error);
+	}
+
+	/* Return through std_return after this point. */
+
+	cdp = NULL;
+
+	/*
+	 * We need to get a reference to cdp before we get our log
+	 * reservation.  The reason for this is that we cannot call
+	 * xfs_iget for an inode for which we do not have a reference
+	 * once we've acquired a log reservation.  This is because the
+	 * inode we are trying to get might be in xfs_inactive going
+	 * for a log reservation.  Since we'll have to wait for the
+	 * inactive code to complete before returning from xfs_iget,
+	 * we need to make sure that we don't have log space reserved
+	 * when we call xfs_iget.  Instead we get an unlocked referece
+	 * to the inode before getting our log reservation.
+	 */
+	error = xfs_get_dir_entry(dentry, &cdp);
+	if (error) {
+		REMOVE_DEBUG_TRACE(__LINE__);
+		goto std_return;
+	}
+	mp = dp->i_mount;
+	dm_di_mode = cdp->i_d.di_mode;
+
+	/*
+	 * Get the dquots for the inodes.
+	 */
+	error = XFS_QM_DQATTACH(mp, dp, 0);
+	if (!error && dp != cdp)
+		error = XFS_QM_DQATTACH(mp, cdp, 0);
+	if (error) {
+		IRELE(cdp);
+		REMOVE_DEBUG_TRACE(__LINE__);
+		goto std_return;
+	}
+
+	tp = xfs_trans_alloc(mp, XFS_TRANS_RMDIR);
+	cancel_flags = XFS_TRANS_RELEASE_LOG_RES;
+	/*
+	 * We try to get the real space reservation first,
+	 * allowing for directory btree deletion(s) implying
+	 * possible bmap insert(s).  If we can't get the space
+	 * reservation then we use 0 instead, and avoid the bmap
+	 * btree insert(s) in the directory code by, if the bmap
+	 * insert tries to happen, instead trimming the LAST
+	 * block from the directory.
+	 */
+	resblks = XFS_REMOVE_SPACE_RES(mp);
+	error = xfs_trans_reserve(tp, resblks, XFS_REMOVE_LOG_RES(mp), 0,
+			XFS_TRANS_PERM_LOG_RES, XFS_DEFAULT_LOG_COUNT);
+	if (error == ENOSPC) {
+		resblks = 0;
+		error = xfs_trans_reserve(tp, 0, XFS_REMOVE_LOG_RES(mp), 0,
+				XFS_TRANS_PERM_LOG_RES, XFS_DEFAULT_LOG_COUNT);
+	}
+	if (error) {
+		ASSERT(error != ENOSPC);
+		cancel_flags = 0;
+		IRELE(cdp);
+		goto error_return;
+	}
+	XFS_BMAP_INIT(&free_list, &first_block);
+
+	/*
+	 * Now lock the child directory inode and the parent directory
+	 * inode in the proper order.  This will take care of validating
+	 * that the directory entry for the child directory inode has
+	 * not changed while we were obtaining a log reservation.
+	 */
+	error = xfs_lock_dir_and_entry(dp, dentry, cdp);
+	if (error) {
+		xfs_trans_cancel(tp, cancel_flags);
+		IRELE(cdp);
+		goto std_return;
+	}
+
+	xfs_trans_ijoin(tp, dp, XFS_ILOCK_EXCL);
+	if (dp != cdp) {
+		/*
+		 * Only increment the parent directory vnode count if
+		 * we didn't bump it in looking up cdp.  The only time
+		 * we don't bump it is when we're looking up ".".
+		 */
+		VN_HOLD(dir_vp);
+	}
+
+	ITRACE(cdp);
+	xfs_trans_ijoin(tp, cdp, XFS_ILOCK_EXCL);
+
+	ASSERT(cdp->i_d.di_nlink >= 2);
+	if (cdp->i_d.di_nlink != 2) {
+		error = XFS_ERROR(ENOTEMPTY);
+		goto error_return;
+	}
+	if (!XFS_DIR_ISEMPTY(mp, cdp)) {
+		error = XFS_ERROR(ENOTEMPTY);
+		goto error_return;
+	}
+
+	error = XFS_DIR_REMOVENAME(mp, tp, dp, name, namelen, cdp->i_ino,
+		&first_block, &free_list, resblks);
+	if (error) {
+		goto error1;
+	}
+
+	xfs_ichgtime(dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+
+	/*
+	 * Bump the in memory generation count on the parent
+	 * directory so that other can know that it has changed.
+	 */
+	dp->i_gen++;
+
+	/*
+	 * Drop the link from cdp's "..".
+	 */
+	error = xfs_droplink(tp, dp);
+	if (error) {
+		goto error1;
+	}
+
+	/*
+	 * Drop the link from dp to cdp.
+	 */
+	error = xfs_droplink(tp, cdp);
+	if (error) {
+		goto error1;
+	}
+
+	/*
+	 * Drop the "." link from cdp to self.
+	 */
+	error = xfs_droplink(tp, cdp);
+	if (error) {
+		goto error1;
+	}
+
+	/* Determine these before committing transaction */
+	last_cdp_link = (cdp)->i_d.di_nlink==0;
+
+	/*
+	 * Take an extra ref on the child vnode so that it
+	 * does not go to xfs_inactive() from within the commit.
+	 */
+	IHOLD(cdp);
+
+	/*
+	 * If this is a synchronous mount, make sure that the
+	 * rmdir transaction goes to disk before returning to
+	 * the user.
+	 */
+	if (mp->m_flags & XFS_MOUNT_WSYNC) {
+		xfs_trans_set_sync(tp);
+	}
+
+	error = xfs_bmap_finish (&tp, &free_list, first_block, &committed);
+	if (error) {
+		xfs_bmap_cancel(&free_list);
+		xfs_trans_cancel(tp, (XFS_TRANS_RELEASE_LOG_RES |
+				 XFS_TRANS_ABORT));
+		IRELE(cdp);
+		goto std_return;
+	}
+
+	error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES, NULL);
+	if (error) {
+		IRELE(cdp);
+		goto std_return;
+	}
+
+
+	/*
+	 * Let interposed file systems know about removed links.
+	 */
+	VOP_LINK_REMOVED(XFS_ITOV(cdp), dir_vp, last_cdp_link);
+
+	IRELE(cdp);
+
+	/* Fall through to std_return with error = 0 or the errno
+	 * from xfs_trans_commit. */
+std_return:
+	if (DM_EVENT_ENABLED(dir_vp->v_vfsp, dp, DM_EVENT_POSTREMOVE)) {
+		(void) XFS_SEND_NAMESP(mp, DM_EVENT_POSTREMOVE,
+					dir_vp, DM_RIGHT_NULL,
+					NULL, DM_RIGHT_NULL,
+					name, NULL, dm_di_mode,
+					error, 0);
+	}
+	return error;
+
+ error1:
+	xfs_bmap_cancel(&free_list);
+	cancel_flags |= XFS_TRANS_ABORT;
+ error_return:
+	xfs_trans_cancel(tp, cancel_flags);
+	goto std_return;
+}
+
+
+/*
+ * xfs_readdir
+ *
+ * Read dp's entries starting at uiop->uio_offset and translate them into
+ * bufsize bytes worth of struct dirents starting at bufbase.
+ */
+STATIC int
+xfs_readdir(
+	bhv_desc_t	*dir_bdp,
+	uio_t		*uiop,
+	cred_t		*credp,
+	int		*eofp)
+{
+	xfs_inode_t	*dp;
+	xfs_trans_t	*tp = NULL;
+	int		error = 0;
+	uint		lock_mode;
+	xfs_off_t	start_offset;
+
+	vn_trace_entry(BHV_TO_VNODE(dir_bdp), __FUNCTION__,
+					       (inst_t *)__return_address);
+	dp = XFS_BHVTOI(dir_bdp);
+
+	if (XFS_FORCED_SHUTDOWN(dp->i_mount)) {
+		return XFS_ERROR(EIO);
+	}
+
+	lock_mode = xfs_ilock_map_shared(dp);
+	start_offset = uiop->uio_offset;
+	error = XFS_DIR_GETDENTS(dp->i_mount, tp, dp, uiop, eofp);
+	if (start_offset != uiop->uio_offset) {
+		xfs_ichgtime(dp, XFS_ICHGTIME_ACC);
+	}
+	xfs_iunlock_map_shared(dp, lock_mode);
+	return error;
+}
+
+
+/*
+ * xfs_symlink
+ *
+ */
+STATIC int
+xfs_symlink(
+	bhv_desc_t		*dir_bdp,
+	vname_t			*dentry,
+	vattr_t			*vap,
+	char			*target_path,
+	vnode_t			**vpp,
+	cred_t			*credp)
+{
+	xfs_trans_t		*tp;
+	xfs_mount_t		*mp;
+	xfs_inode_t		*dp;
+	xfs_inode_t		*ip;
+	int			error;
+	int			pathlen;
+	xfs_bmap_free_t		free_list;
+	xfs_fsblock_t		first_block;
+	boolean_t		dp_joined_to_trans;
+	vnode_t			*dir_vp;
+	uint			cancel_flags;
+	int			committed;
+	xfs_fileoff_t		first_fsb;
+	xfs_filblks_t		fs_blocks;
+	int			nmaps;
+	xfs_bmbt_irec_t		mval[SYMLINK_MAPS];
+	xfs_daddr_t		d;
+	char			*cur_chunk;
+	int			byte_cnt;
+	int			n;
+	xfs_buf_t		*bp;
+	xfs_prid_t		prid;
+	struct xfs_dquot	*udqp, *gdqp;
+	uint			resblks;
+	char			*link_name = VNAME(dentry);
+	int			link_namelen;
+
+	*vpp = NULL;
+	dir_vp = BHV_TO_VNODE(dir_bdp);
+	dp = XFS_BHVTOI(dir_bdp);
+	dp_joined_to_trans = B_FALSE;
+	error = 0;
+	ip = NULL;
+	tp = NULL;
+
+	vn_trace_entry(dir_vp, __FUNCTION__, (inst_t *)__return_address);
+
+	mp = dp->i_mount;
+
+	if (XFS_FORCED_SHUTDOWN(mp))
+		return XFS_ERROR(EIO);
+
+	link_namelen = VNAMELEN(dentry);
+
+	/*
+	 * Check component lengths of the target path name.
+	 */
+	pathlen = strlen(target_path);
+	if (pathlen >= MAXPATHLEN)      /* total string too long */
+		return XFS_ERROR(ENAMETOOLONG);
+	if (pathlen >= MAXNAMELEN) {    /* is any component too long? */
+		int len, total;
+		char *path;
+
+		for(total = 0, path = target_path; total < pathlen;) {
+			/*
+			 * Skip any slashes.
+			 */
+			while(*path == '/') {
+				total++;
+				path++;
+			}
+
+			/*
+			 * Count up to the next slash or end of path.
+			 * Error out if the component is bigger than MAXNAMELEN.
+			 */
+			for(len = 0; *path != '/' && total < pathlen;total++, path++) {
+				if (++len >= MAXNAMELEN) {
+					error = ENAMETOOLONG;
+					return error;
+				}
+			}
+		}
+	}
+
+	if (DM_EVENT_ENABLED(dir_vp->v_vfsp, dp, DM_EVENT_SYMLINK)) {
+		error = XFS_SEND_NAMESP(mp, DM_EVENT_SYMLINK, dir_vp,
+					DM_RIGHT_NULL, NULL, DM_RIGHT_NULL,
+					link_name, target_path, 0, 0, 0);
+		if (error)
+			return error;
+	}
+
+	/* Return through std_return after this point. */
+
+	udqp = gdqp = NULL;
+	if (vap->va_mask & XFS_AT_PROJID)
+		prid = (xfs_prid_t)vap->va_projid;
+	else
+		prid = (xfs_prid_t)dfltprid;
+
+	/*
+	 * Make sure that we have allocated dquot(s) on disk.
+	 */
+	error = XFS_QM_DQVOPALLOC(mp, dp,
+			current_fsuid(credp), current_fsgid(credp),
+			XFS_QMOPT_QUOTALL | XFS_QMOPT_INHERIT, &udqp, &gdqp);
+	if (error)
+		goto std_return;
+
+	tp = xfs_trans_alloc(mp, XFS_TRANS_SYMLINK);
+	cancel_flags = XFS_TRANS_RELEASE_LOG_RES;
+	/*
+	 * The symlink will fit into the inode data fork?
+	 * There can't be any attributes so we get the whole variable part.
+	 */
+	if (pathlen <= XFS_LITINO(mp))
+		fs_blocks = 0;
+	else
+		fs_blocks = XFS_B_TO_FSB(mp, pathlen);
+	resblks = XFS_SYMLINK_SPACE_RES(mp, link_namelen, fs_blocks);
+	error = xfs_trans_reserve(tp, resblks, XFS_SYMLINK_LOG_RES(mp), 0,
+			XFS_TRANS_PERM_LOG_RES, XFS_SYMLINK_LOG_COUNT);
+	if (error == ENOSPC && fs_blocks == 0) {
+		resblks = 0;
+		error = xfs_trans_reserve(tp, 0, XFS_SYMLINK_LOG_RES(mp), 0,
+				XFS_TRANS_PERM_LOG_RES, XFS_SYMLINK_LOG_COUNT);
+	}
+	if (error) {
+		cancel_flags = 0;
+		dp = NULL;
+		goto error_return;
+	}
+
+	xfs_ilock(dp, XFS_ILOCK_EXCL);
+
+	/*
+	 * Check whether the directory allows new symlinks or not.
+	 */
+	if (dp->i_d.di_flags & XFS_DIFLAG_NOSYMLINKS) {
+		error = XFS_ERROR(EPERM);
+		goto error_return;
+	}
+
+	/*
+	 * Reserve disk quota : blocks and inode.
+	 */
+	error = XFS_TRANS_RESERVE_QUOTA(mp, tp, udqp, gdqp, resblks, 1, 0);
+	if (error)
+		goto error_return;
+
+	/*
+	 * Check for ability to enter directory entry, if no space reserved.
+	 */
+	if (resblks == 0 &&
+	    (error = XFS_DIR_CANENTER(mp, tp, dp, link_name, link_namelen)))
+		goto error_return;
+	/*
+	 * Initialize the bmap freelist prior to calling either
+	 * bmapi or the directory create code.
+	 */
+	XFS_BMAP_INIT(&free_list, &first_block);
+
+	/*
+	 * Allocate an inode for the symlink.
+	 */
+	error = xfs_dir_ialloc(&tp, dp, S_IFLNK | (vap->va_mode&~S_IFMT),
+			       1, 0, credp, prid, resblks > 0, &ip, NULL);
+	if (error) {
+		if (error == ENOSPC)
+			goto error_return;
+		goto error1;
+	}
+	ITRACE(ip);
+
+	VN_HOLD(dir_vp);
+	xfs_trans_ijoin(tp, dp, XFS_ILOCK_EXCL);
+	dp_joined_to_trans = B_TRUE;
+
+	/*
+	 * Also attach the dquot(s) to it, if applicable.
+	 */
+	XFS_QM_DQVOPCREATE(mp, tp, ip, udqp, gdqp);
+
+	if (resblks)
+		resblks -= XFS_IALLOC_SPACE_RES(mp);
+	/*
+	 * If the symlink will fit into the inode, write it inline.
+	 */
+	if (pathlen <= XFS_IFORK_DSIZE(ip)) {
+		xfs_idata_realloc(ip, pathlen, XFS_DATA_FORK);
+		memcpy(ip->i_df.if_u1.if_data, target_path, pathlen);
+		ip->i_d.di_size = pathlen;
+
+		/*
+		 * The inode was initially created in extent format.
+		 */
+		ip->i_df.if_flags &= ~(XFS_IFEXTENTS | XFS_IFBROOT);
+		ip->i_df.if_flags |= XFS_IFINLINE;
+
+		ip->i_d.di_format = XFS_DINODE_FMT_LOCAL;
+		xfs_trans_log_inode(tp, ip, XFS_ILOG_DDATA | XFS_ILOG_CORE);
+
+	} else {
+		first_fsb = 0;
+		nmaps = SYMLINK_MAPS;
+
+		error = xfs_bmapi(tp, ip, first_fsb, fs_blocks,
+				  XFS_BMAPI_WRITE | XFS_BMAPI_METADATA,
+				  &first_block, resblks, mval, &nmaps,
+				  &free_list);
+		if (error) {
+			goto error1;
+		}
+
+		if (resblks)
+			resblks -= fs_blocks;
+		ip->i_d.di_size = pathlen;
+		xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+
+		cur_chunk = target_path;
+		for (n = 0; n < nmaps; n++) {
+			d = XFS_FSB_TO_DADDR(mp, mval[n].br_startblock);
+			byte_cnt = XFS_FSB_TO_B(mp, mval[n].br_blockcount);
+			bp = xfs_trans_get_buf(tp, mp->m_ddev_targp, d,
+					       BTOBB(byte_cnt), 0);
+			ASSERT(bp && !XFS_BUF_GETERROR(bp));
+			if (pathlen < byte_cnt) {
+				byte_cnt = pathlen;
+			}
+			pathlen -= byte_cnt;
+
+			memcpy(XFS_BUF_PTR(bp), cur_chunk, byte_cnt);
+			cur_chunk += byte_cnt;
+
+			xfs_trans_log_buf(tp, bp, 0, byte_cnt - 1);
+		}
+	}
+
+	/*
+	 * Create the directory entry for the symlink.
+	 */
+	error = XFS_DIR_CREATENAME(mp, tp, dp, link_name, link_namelen,
+			ip->i_ino, &first_block, &free_list, resblks);
+	if (error) {
+		goto error1;
+	}
+	xfs_ichgtime(dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+	xfs_trans_log_inode(tp, dp, XFS_ILOG_CORE);
+
+	/*
+	 * Bump the in memory version number of the parent directory
+	 * so that other processes accessing it will recognize that
+	 * the directory has changed.
+	 */
+	dp->i_gen++;
+
+	/*
+	 * If this is a synchronous mount, make sure that the
+	 * symlink transaction goes to disk before returning to
+	 * the user.
+	 */
+	if (mp->m_flags & XFS_MOUNT_WSYNC) {
+		xfs_trans_set_sync(tp);
+	}
+
+	/*
+	 * xfs_trans_commit normally decrements the vnode ref count
+	 * when it unlocks the inode. Since we want to return the
+	 * vnode to the caller, we bump the vnode ref count now.
+	 */
+	IHOLD(ip);
+
+	error = xfs_bmap_finish(&tp, &free_list, first_block, &committed);
+	if (error) {
+		goto error2;
+	}
+	error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES, NULL);
+	XFS_QM_DQRELE(mp, udqp);
+	XFS_QM_DQRELE(mp, gdqp);
+
+	/* Fall through to std_return with error = 0 or errno from
+	 * xfs_trans_commit	*/
+std_return:
+	if (DM_EVENT_ENABLED(dir_vp->v_vfsp, XFS_BHVTOI(dir_bdp),
+			     DM_EVENT_POSTSYMLINK)) {
+		(void) XFS_SEND_NAMESP(mp, DM_EVENT_POSTSYMLINK,
+					dir_vp, DM_RIGHT_NULL,
+					error ? NULL : XFS_ITOV(ip),
+					DM_RIGHT_NULL, link_name, target_path,
+					0, error, 0);
+	}
+
+	if (!error) {
+		vnode_t *vp;
+
+		ASSERT(ip);
+		vp = XFS_ITOV(ip);
+		*vpp = vp;
+	}
+	return error;
+
+ error2:
+	IRELE(ip);
+ error1:
+	xfs_bmap_cancel(&free_list);
+	cancel_flags |= XFS_TRANS_ABORT;
+ error_return:
+	xfs_trans_cancel(tp, cancel_flags);
+	XFS_QM_DQRELE(mp, udqp);
+	XFS_QM_DQRELE(mp, gdqp);
+
+	if (!dp_joined_to_trans && (dp != NULL)) {
+		xfs_iunlock(dp, XFS_ILOCK_EXCL);
+	}
+
+	goto std_return;
+}
+
+
+/*
+ * xfs_fid2
+ *
+ * A fid routine that takes a pointer to a previously allocated
+ * fid structure (like xfs_fast_fid) but uses a 64 bit inode number.
+ */
+STATIC int
+xfs_fid2(
+	bhv_desc_t	*bdp,
+	fid_t		*fidp)
+{
+	xfs_inode_t	*ip;
+	xfs_fid2_t	*xfid;
+
+	vn_trace_entry(BHV_TO_VNODE(bdp), __FUNCTION__,
+				       (inst_t *)__return_address);
+	ASSERT(sizeof(fid_t) >= sizeof(xfs_fid2_t));
+
+	xfid = (xfs_fid2_t *)fidp;
+	ip = XFS_BHVTOI(bdp);
+	xfid->fid_len = sizeof(xfs_fid2_t) - sizeof(xfid->fid_len);
+	xfid->fid_pad = 0;
+	/*
+	 * use memcpy because the inode is a long long and there's no
+	 * assurance that xfid->fid_ino is properly aligned.
+	 */
+	memcpy(&xfid->fid_ino, &ip->i_ino, sizeof(xfid->fid_ino));
+	xfid->fid_gen = ip->i_d.di_gen;
+
+	return 0;
+}
+
+
+/*
+ * xfs_rwlock
+ */
+int
+xfs_rwlock(
+	bhv_desc_t	*bdp,
+	vrwlock_t	locktype)
+{
+	xfs_inode_t	*ip;
+	vnode_t		*vp;
+
+	vp = BHV_TO_VNODE(bdp);
+	if (vp->v_type == VDIR)
+		return 1;
+	ip = XFS_BHVTOI(bdp);
+	if (locktype == VRWLOCK_WRITE) {
+		xfs_ilock(ip, XFS_IOLOCK_EXCL);
+	} else if (locktype == VRWLOCK_TRY_READ) {
+		return (xfs_ilock_nowait(ip, XFS_IOLOCK_SHARED));
+	} else if (locktype == VRWLOCK_TRY_WRITE) {
+		return (xfs_ilock_nowait(ip, XFS_IOLOCK_EXCL));
+	} else {
+		ASSERT((locktype == VRWLOCK_READ) ||
+		       (locktype == VRWLOCK_WRITE_DIRECT));
+		xfs_ilock(ip, XFS_IOLOCK_SHARED);
+	}
+
+	return 1;
+}
+
+
+/*
+ * xfs_rwunlock
+ */
+void
+xfs_rwunlock(
+	bhv_desc_t	*bdp,
+	vrwlock_t	locktype)
+{
+	xfs_inode_t     *ip;
+	vnode_t		*vp;
+
+	vp = BHV_TO_VNODE(bdp);
+	if (vp->v_type == VDIR)
+		return;
+	ip = XFS_BHVTOI(bdp);
+	if (locktype == VRWLOCK_WRITE) {
+		/*
+		 * In the write case, we may have added a new entry to
+		 * the reference cache.  This might store a pointer to
+		 * an inode to be released in this inode.  If it is there,
+		 * clear the pointer and release the inode after unlocking
+		 * this one.
+		 */
+		xfs_refcache_iunlock(ip, XFS_IOLOCK_EXCL);
+	} else {
+		ASSERT((locktype == VRWLOCK_READ) ||
+		       (locktype == VRWLOCK_WRITE_DIRECT));
+		xfs_iunlock(ip, XFS_IOLOCK_SHARED);
+	}
+	return;
+}
+
+STATIC int
+xfs_inode_flush(
+	bhv_desc_t	*bdp,
+	int		flags)
+{
+	xfs_inode_t	*ip;
+	xfs_mount_t	*mp;
+	int		error = 0;
+
+	ip = XFS_BHVTOI(bdp);
+	mp = ip->i_mount;
+
+	if (XFS_FORCED_SHUTDOWN(mp))
+		return XFS_ERROR(EIO);
+
+	/* Bypass inodes which have already been cleaned by
+	 * the inode flush clustering code inside xfs_iflush
+	 */
+	if ((ip->i_update_core == 0) &&
+	    ((ip->i_itemp == NULL) ||
+	     !(ip->i_itemp->ili_format.ilf_fields & XFS_ILOG_ALL)))
+		return 0;
+
+	if (flags & FLUSH_LOG) {
+		xfs_inode_log_item_t *iip = ip->i_itemp;
+
+		if (iip && iip->ili_last_lsn) {
+			xlog_t	*log = mp->m_log;
+			xfs_lsn_t	sync_lsn;
+			int		s, log_flags = XFS_LOG_FORCE;
+
+			s = GRANT_LOCK(log);
+			sync_lsn = log->l_last_sync_lsn;
+			GRANT_UNLOCK(log, s);
+
+			if ((XFS_LSN_CMP(iip->ili_last_lsn, sync_lsn) <= 0))
+				return 0;
+
+			if (flags & FLUSH_SYNC)
+				log_flags |= XFS_LOG_SYNC;
+			return xfs_log_force(mp, iip->ili_last_lsn,
+						log_flags);
+		}
+	}
+
+	/* We make this non-blocking if the inode is contended,
+	 * return EAGAIN to indicate to the caller that they
+	 * did not succeed. This prevents the flush path from
+	 * blocking on inodes inside another operation right
+	 * now, they get caught later by xfs_sync.
+	 */
+	if (flags & FLUSH_INODE) {
+		int	flush_flags;
+
+		if (xfs_ipincount(ip))
+			return EAGAIN;
+
+		if (flags & FLUSH_SYNC) {
+			xfs_ilock(ip, XFS_ILOCK_SHARED);
+			xfs_iflock(ip);
+		} else if (xfs_ilock_nowait(ip, XFS_ILOCK_SHARED)) {
+			if (xfs_ipincount(ip) || !xfs_iflock_nowait(ip)) {
+				xfs_iunlock(ip, XFS_ILOCK_SHARED);
+				return EAGAIN;
+			}
+		} else {
+			return EAGAIN;
+		}
+
+		if (flags & FLUSH_SYNC)
+			flush_flags = XFS_IFLUSH_SYNC;
+		else
+			flush_flags = XFS_IFLUSH_ASYNC;
+
+		error = xfs_iflush(ip, flush_flags);
+		xfs_iunlock(ip, XFS_ILOCK_SHARED);
+	}
+
+	return error;
+}
+
+
+int
+xfs_set_dmattrs (
+	bhv_desc_t	*bdp,
+	u_int		evmask,
+	u_int16_t	state,
+	cred_t		*credp)
+{
+	xfs_inode_t     *ip;
+	xfs_trans_t	*tp;
+	xfs_mount_t	*mp;
+	int		error;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return XFS_ERROR(EPERM);
+
+	ip = XFS_BHVTOI(bdp);
+	mp = ip->i_mount;
+
+	if (XFS_FORCED_SHUTDOWN(mp))
+		return XFS_ERROR(EIO);
+
+	tp = xfs_trans_alloc(mp, XFS_TRANS_SET_DMATTRS);
+	error = xfs_trans_reserve(tp, 0, XFS_ICHANGE_LOG_RES (mp), 0, 0, 0);
+	if (error) {
+		xfs_trans_cancel(tp, 0);
+		return error;
+	}
+	xfs_ilock(ip, XFS_ILOCK_EXCL);
+	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+
+	ip->i_iocore.io_dmevmask = ip->i_d.di_dmevmask = evmask;
+	ip->i_iocore.io_dmstate  = ip->i_d.di_dmstate  = state;
+
+	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+	IHOLD(ip);
+	error = xfs_trans_commit(tp, 0, NULL);
+
+	return error;
+}
+
+
+/*
+ * xfs_reclaim
+ */
+STATIC int
+xfs_reclaim(
+	bhv_desc_t	*bdp)
+{
+	xfs_inode_t	*ip;
+	vnode_t		*vp;
+
+	vp = BHV_TO_VNODE(bdp);
+	ip = XFS_BHVTOI(bdp);
+
+	vn_trace_entry(vp, __FUNCTION__, (inst_t *)__return_address);
+
+	ASSERT(!VN_MAPPED(vp));
+
+	/* bad inode, get out here ASAP */
+	if (VN_BAD(vp)) {
+		xfs_ireclaim(ip);
+		return 0;
+	}
+
+	if ((ip->i_d.di_mode & S_IFMT) == S_IFREG) {
+		if (ip->i_d.di_size > 0) {
+			/*
+			 * Flush and invalidate any data left around that is
+			 * a part of this file.
+			 *
+			 * Get the inode's i/o lock so that buffers are pushed
+			 * out while holding the proper lock.  We can't hold
+			 * the inode lock here since flushing out buffers may
+			 * cause us to try to get the lock in xfs_strategy().
+			 *
+			 * We don't have to call remapf() here, because there
+			 * cannot be any mapped file references to this vnode
+			 * since it is being reclaimed.
+			 */
+			xfs_ilock(ip, XFS_IOLOCK_EXCL);
+
+			/*
+			 * If we hit an IO error, we need to make sure that the
+			 * buffer and page caches of file data for
+			 * the file are tossed away. We don't want to use
+			 * VOP_FLUSHINVAL_PAGES here because we don't want dirty
+			 * pages to stay attached to the vnode, but be
+			 * marked P_BAD. pdflush/vnode_pagebad
+			 * hates that.
+			 */
+			if (!XFS_FORCED_SHUTDOWN(ip->i_mount)) {
+				VOP_FLUSHINVAL_PAGES(vp, 0, -1, FI_NONE);
+			} else {
+				VOP_TOSS_PAGES(vp, 0, -1, FI_NONE);
+			}
+
+			ASSERT(VN_CACHED(vp) == 0);
+			ASSERT(XFS_FORCED_SHUTDOWN(ip->i_mount) ||
+			       ip->i_delayed_blks == 0);
+			xfs_iunlock(ip, XFS_IOLOCK_EXCL);
+		} else if (XFS_FORCED_SHUTDOWN(ip->i_mount)) {
+			/*
+			 * di_size field may not be quite accurate if we're
+			 * shutting down.
+			 */
+			VOP_TOSS_PAGES(vp, 0, -1, FI_NONE);
+			ASSERT(VN_CACHED(vp) == 0);
+		}
+	}
+
+	/* If we have nothing to flush with this inode then complete the
+	 * teardown now, otherwise break the link between the xfs inode
+	 * and the linux inode and clean up the xfs inode later. This
+	 * avoids flushing the inode to disk during the delete operation
+	 * itself.
+	 */
+	if (!ip->i_update_core && (ip->i_itemp == NULL)) {
+		xfs_ilock(ip, XFS_ILOCK_EXCL);
+		xfs_iflock(ip);
+		return xfs_finish_reclaim(ip, 1, XFS_IFLUSH_DELWRI_ELSE_SYNC);
+	} else {
+		xfs_mount_t	*mp = ip->i_mount;
+
+		/* Protect sync from us */
+		XFS_MOUNT_ILOCK(mp);
+		vn_bhv_remove(VN_BHV_HEAD(vp), XFS_ITOBHV(ip));
+		list_add_tail(&ip->i_reclaim, &mp->m_del_inodes);
+		ip->i_flags |= XFS_IRECLAIMABLE;
+		XFS_MOUNT_IUNLOCK(mp);
+	}
+	return 0;
+}
+
+int
+xfs_finish_reclaim(
+	xfs_inode_t	*ip,
+	int		locked,
+	int		sync_mode)
+{
+	xfs_ihash_t	*ih = ip->i_hash;
+	vnode_t		*vp = XFS_ITOV_NULL(ip);
+	int		error;
+
+	if (vp && VN_BAD(vp))
+		goto reclaim;
+
+	/* The hash lock here protects a thread in xfs_iget_core from
+	 * racing with us on linking the inode back with a vnode.
+	 * Once we have the XFS_IRECLAIM flag set it will not touch
+	 * us.
+	 */
+	write_lock(&ih->ih_lock);
+	if ((ip->i_flags & XFS_IRECLAIM) ||
+	    (!(ip->i_flags & XFS_IRECLAIMABLE) && vp == NULL)) {
+		write_unlock(&ih->ih_lock);
+		if (locked) {
+			xfs_ifunlock(ip);
+			xfs_iunlock(ip, XFS_ILOCK_EXCL);
+		}
+		return(1);
+	}
+	ip->i_flags |= XFS_IRECLAIM;
+	write_unlock(&ih->ih_lock);
+
+	/*
+	 * If the inode is still dirty, then flush it out.  If the inode
+	 * is not in the AIL, then it will be OK to flush it delwri as
+	 * long as xfs_iflush() does not keep any references to the inode.
+	 * We leave that decision up to xfs_iflush() since it has the
+	 * knowledge of whether it's OK to simply do a delwri flush of
+	 * the inode or whether we need to wait until the inode is
+	 * pulled from the AIL.
+	 * We get the flush lock regardless, though, just to make sure
+	 * we don't free it while it is being flushed.
+	 */
+	if (!XFS_FORCED_SHUTDOWN(ip->i_mount)) {
+		if (!locked) {
+			xfs_ilock(ip, XFS_ILOCK_EXCL);
+			xfs_iflock(ip);
+		}
+
+		if (ip->i_update_core ||
+		    ((ip->i_itemp != NULL) &&
+		     (ip->i_itemp->ili_format.ilf_fields != 0))) {
+			error = xfs_iflush(ip, sync_mode);
+			/*
+			 * If we hit an error, typically because of filesystem
+			 * shutdown, we don't need to let vn_reclaim to know
+			 * because we're gonna reclaim the inode anyway.
+			 */
+			if (error) {
+				xfs_iunlock(ip, XFS_ILOCK_EXCL);
+				goto reclaim;
+			}
+			xfs_iflock(ip); /* synchronize with xfs_iflush_done */
+		}
+
+		ASSERT(ip->i_update_core == 0);
+		ASSERT(ip->i_itemp == NULL ||
+		       ip->i_itemp->ili_format.ilf_fields == 0);
+		xfs_iunlock(ip, XFS_ILOCK_EXCL);
+	} else if (locked) {
+		/*
+		 * We are not interested in doing an iflush if we're
+		 * in the process of shutting down the filesystem forcibly.
+		 * So, just reclaim the inode.
+		 */
+		xfs_ifunlock(ip);
+		xfs_iunlock(ip, XFS_ILOCK_EXCL);
+	}
+
+ reclaim:
+	xfs_ireclaim(ip);
+	return 0;
+}
+
+int
+xfs_finish_reclaim_all(xfs_mount_t *mp, int noblock)
+{
+	int		purged;
+	xfs_inode_t	*ip, *n;
+	int		done = 0;
+
+	while (!done) {
+		purged = 0;
+		XFS_MOUNT_ILOCK(mp);
+		list_for_each_entry_safe(ip, n, &mp->m_del_inodes, i_reclaim) {
+			if (noblock) {
+				if (xfs_ilock_nowait(ip, XFS_ILOCK_EXCL) == 0)
+					continue;
+				if (xfs_ipincount(ip) ||
+				    !xfs_iflock_nowait(ip)) {
+					xfs_iunlock(ip, XFS_ILOCK_EXCL);
+					continue;
+				}
+			}
+			XFS_MOUNT_IUNLOCK(mp);
+			xfs_finish_reclaim(ip, noblock,
+				XFS_IFLUSH_DELWRI_ELSE_ASYNC);
+			purged = 1;
+			break;
+		}
+
+		done = !purged;
+	}
+
+	XFS_MOUNT_IUNLOCK(mp);
+	return 0;
+}
+
+/*
+ * xfs_alloc_file_space()
+ *      This routine allocates disk space for the given file.
+ *
+ *	If alloc_type == 0, this request is for an ALLOCSP type
+ *	request which will change the file size.  In this case, no
+ *	DMAPI event will be generated by the call.  A TRUNCATE event
+ *	will be generated later by xfs_setattr.
+ *
+ *	If alloc_type != 0, this request is for a RESVSP type
+ *	request, and a DMAPI DM_EVENT_WRITE will be generated if the
+ *	lower block boundary byte address is less than the file's
+ *	length.
+ *
+ * RETURNS:
+ *       0 on success
+ *      errno on error
+ *
+ */
+int
+xfs_alloc_file_space(
+	xfs_inode_t		*ip,
+	xfs_off_t		offset,
+	xfs_off_t		len,
+	int			alloc_type,
+	int			attr_flags)
+{
+	xfs_filblks_t		allocated_fsb;
+	xfs_filblks_t		allocatesize_fsb;
+	int			committed;
+	xfs_off_t		count;
+	xfs_filblks_t		datablocks;
+	int			error;
+	xfs_fsblock_t		firstfsb;
+	xfs_bmap_free_t		free_list;
+	xfs_bmbt_irec_t		*imapp;
+	xfs_bmbt_irec_t		imaps[1];
+	xfs_mount_t		*mp;
+	int			numrtextents;
+	int			reccount;
+	uint			resblks;
+	int			rt;
+	int			rtextsize;
+	xfs_fileoff_t		startoffset_fsb;
+	xfs_trans_t		*tp;
+	int			xfs_bmapi_flags;
+
+	vn_trace_entry(XFS_ITOV(ip), __FUNCTION__, (inst_t *)__return_address);
+	mp = ip->i_mount;
+
+	if (XFS_FORCED_SHUTDOWN(mp))
+		return XFS_ERROR(EIO);
+
+	/*
+	 * determine if this is a realtime file
+	 */
+	if ((rt = XFS_IS_REALTIME_INODE(ip)) != 0) {
+		if (ip->i_d.di_extsize)
+			rtextsize = ip->i_d.di_extsize;
+		else
+			rtextsize = mp->m_sb.sb_rextsize;
+	} else
+		rtextsize = 0;
+
+	if ((error = XFS_QM_DQATTACH(mp, ip, 0)))
+		return error;
+
+	if (len <= 0)
+		return XFS_ERROR(EINVAL);
+
+	count = len;
+	error = 0;
+	imapp = &imaps[0];
+	reccount = 1;
+	xfs_bmapi_flags = XFS_BMAPI_WRITE | (alloc_type ? XFS_BMAPI_PREALLOC : 0);
+	startoffset_fsb	= XFS_B_TO_FSBT(mp, offset);
+	allocatesize_fsb = XFS_B_TO_FSB(mp, count);
+
+	/*	Generate a DMAPI event if needed.	*/
+	if (alloc_type != 0 && offset < ip->i_d.di_size &&
+			(attr_flags&ATTR_DMI) == 0  &&
+			DM_EVENT_ENABLED(XFS_MTOVFS(mp), ip, DM_EVENT_WRITE)) {
+		xfs_off_t           end_dmi_offset;
+
+		end_dmi_offset = offset+len;
+		if (end_dmi_offset > ip->i_d.di_size)
+			end_dmi_offset = ip->i_d.di_size;
+		error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, XFS_ITOV(ip),
+			offset, end_dmi_offset - offset,
+			0, NULL);
+		if (error)
+			return(error);
+	}
+
+	/*
+	 * allocate file space until done or until there is an error
+	 */
+retry:
+	while (allocatesize_fsb && !error) {
+		/*
+		 * determine if reserving space on
+		 * the data or realtime partition.
+		 */
+		if (rt) {
+			xfs_fileoff_t s, e;
+
+			s = startoffset_fsb;
+			do_div(s, rtextsize);
+			s *= rtextsize;
+			e = roundup_64(startoffset_fsb + allocatesize_fsb,
+				rtextsize);
+			numrtextents = (int)(e - s) / mp->m_sb.sb_rextsize;
+			datablocks = 0;
+		} else {
+			datablocks = allocatesize_fsb;
+			numrtextents = 0;
+		}
+
+		/*
+		 * allocate and setup the transaction
+		 */
+		tp = xfs_trans_alloc(mp, XFS_TRANS_DIOSTRAT);
+		resblks = XFS_DIOSTRAT_SPACE_RES(mp, datablocks);
+		error = xfs_trans_reserve(tp,
+					  resblks,
+					  XFS_WRITE_LOG_RES(mp),
+					  numrtextents,
+					  XFS_TRANS_PERM_LOG_RES,
+					  XFS_WRITE_LOG_COUNT);
+
+		/*
+		 * check for running out of space
+		 */
+		if (error) {
+			/*
+			 * Free the transaction structure.
+			 */
+			ASSERT(error == ENOSPC || XFS_FORCED_SHUTDOWN(mp));
+			xfs_trans_cancel(tp, 0);
+			break;
+		}
+		xfs_ilock(ip, XFS_ILOCK_EXCL);
+		error = XFS_TRANS_RESERVE_QUOTA_BYDQUOTS(mp, tp,
+				ip->i_udquot, ip->i_gdquot, resblks, 0, rt ?
+				XFS_QMOPT_RES_RTBLKS : XFS_QMOPT_RES_REGBLKS);
+		if (error)
+			goto error1;
+
+		xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+		xfs_trans_ihold(tp, ip);
+
+		/*
+		 * issue the bmapi() call to allocate the blocks
+		 */
+		XFS_BMAP_INIT(&free_list, &firstfsb);
+		error = xfs_bmapi(tp, ip, startoffset_fsb,
+				  allocatesize_fsb, xfs_bmapi_flags,
+				  &firstfsb, 0, imapp, &reccount,
+				  &free_list);
+		if (error) {
+			goto error0;
+		}
+
+		/*
+		 * complete the transaction
+		 */
+		error = xfs_bmap_finish(&tp, &free_list, firstfsb, &committed);
+		if (error) {
+			goto error0;
+		}
+
+		error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES, NULL);
+		xfs_iunlock(ip, XFS_ILOCK_EXCL);
+		if (error) {
+			break;
+		}
+
+		allocated_fsb = imapp->br_blockcount;
+
+		if (reccount == 0) {
+			error = XFS_ERROR(ENOSPC);
+			break;
+		}
+
+		startoffset_fsb += allocated_fsb;
+		allocatesize_fsb -= allocated_fsb;
+	}
+dmapi_enospc_check:
+	if (error == ENOSPC && (attr_flags&ATTR_DMI) == 0 &&
+	    DM_EVENT_ENABLED(XFS_MTOVFS(mp), ip, DM_EVENT_NOSPACE)) {
+
+		error = XFS_SEND_NAMESP(mp, DM_EVENT_NOSPACE,
+				XFS_ITOV(ip), DM_RIGHT_NULL,
+				XFS_ITOV(ip), DM_RIGHT_NULL,
+				NULL, NULL, 0, 0, 0); /* Delay flag intentionally unused */
+		if (error == 0)
+			goto retry;	/* Maybe DMAPI app. has made space */
+		/* else fall through with error from XFS_SEND_DATA */
+	}
+
+	return error;
+
+ error0:
+	xfs_bmap_cancel(&free_list);
+ error1:
+	xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT);
+	xfs_iunlock(ip, XFS_ILOCK_EXCL);
+	goto dmapi_enospc_check;
+}
+
+/*
+ * Zero file bytes between startoff and endoff inclusive.
+ * The iolock is held exclusive and no blocks are buffered.
+ */
+STATIC int
+xfs_zero_remaining_bytes(
+	xfs_inode_t		*ip,
+	xfs_off_t		startoff,
+	xfs_off_t		endoff)
+{
+	xfs_bmbt_irec_t		imap;
+	xfs_fileoff_t		offset_fsb;
+	xfs_off_t		lastoffset;
+	xfs_off_t		offset;
+	xfs_buf_t		*bp;
+	xfs_mount_t		*mp = ip->i_mount;
+	int			nimap;
+	int			error = 0;
+
+	bp = xfs_buf_get_noaddr(mp->m_sb.sb_blocksize,
+				ip->i_d.di_flags & XFS_DIFLAG_REALTIME ?
+				mp->m_rtdev_targp : mp->m_ddev_targp);
+
+	for (offset = startoff; offset <= endoff; offset = lastoffset + 1) {
+		offset_fsb = XFS_B_TO_FSBT(mp, offset);
+		nimap = 1;
+		error = xfs_bmapi(NULL, ip, offset_fsb, 1, 0, NULL, 0, &imap,
+			&nimap, NULL);
+		if (error || nimap < 1)
+			break;
+		ASSERT(imap.br_blockcount >= 1);
+		ASSERT(imap.br_startoff == offset_fsb);
+		lastoffset = XFS_FSB_TO_B(mp, imap.br_startoff + 1) - 1;
+		if (lastoffset > endoff)
+			lastoffset = endoff;
+		if (imap.br_startblock == HOLESTARTBLOCK)
+			continue;
+		ASSERT(imap.br_startblock != DELAYSTARTBLOCK);
+		if (imap.br_state == XFS_EXT_UNWRITTEN)
+			continue;
+		XFS_BUF_UNDONE(bp);
+		XFS_BUF_UNWRITE(bp);
+		XFS_BUF_READ(bp);
+		XFS_BUF_SET_ADDR(bp, XFS_FSB_TO_DB(ip, imap.br_startblock));
+		xfsbdstrat(mp, bp);
+		if ((error = xfs_iowait(bp))) {
+			xfs_ioerror_alert("xfs_zero_remaining_bytes(read)",
+					  mp, bp, XFS_BUF_ADDR(bp));
+			break;
+		}
+		memset(XFS_BUF_PTR(bp) +
+			(offset - XFS_FSB_TO_B(mp, imap.br_startoff)),
+		      0, lastoffset - offset + 1);
+		XFS_BUF_UNDONE(bp);
+		XFS_BUF_UNREAD(bp);
+		XFS_BUF_WRITE(bp);
+		xfsbdstrat(mp, bp);
+		if ((error = xfs_iowait(bp))) {
+			xfs_ioerror_alert("xfs_zero_remaining_bytes(write)",
+					  mp, bp, XFS_BUF_ADDR(bp));
+			break;
+		}
+	}
+	xfs_buf_free(bp);
+	return error;
+}
+
+/*
+ * xfs_free_file_space()
+ *      This routine frees disk space for the given file.
+ *
+ *	This routine is only called by xfs_change_file_space
+ *	for an UNRESVSP type call.
+ *
+ * RETURNS:
+ *       0 on success
+ *      errno on error
+ *
+ */
+STATIC int
+xfs_free_file_space(
+	xfs_inode_t		*ip,
+	xfs_off_t		offset,
+	xfs_off_t		len,
+	int			attr_flags)
+{
+	int			committed;
+	int			done;
+	xfs_off_t		end_dmi_offset;
+	xfs_fileoff_t		endoffset_fsb;
+	int			error;
+	xfs_fsblock_t		firstfsb;
+	xfs_bmap_free_t		free_list;
+	xfs_off_t		ilen;
+	xfs_bmbt_irec_t		imap;
+	xfs_off_t		ioffset;
+	xfs_extlen_t		mod=0;
+	xfs_mount_t		*mp;
+	int			nimap;
+	uint			resblks;
+	int			rounding;
+	int			rt;
+	xfs_fileoff_t		startoffset_fsb;
+	xfs_trans_t		*tp;
+	int			need_iolock = (attr_flags & ATTR_DMI) == 0;
+
+	vn_trace_entry(XFS_ITOV(ip), __FUNCTION__, (inst_t *)__return_address);
+	mp = ip->i_mount;
+
+	if ((error = XFS_QM_DQATTACH(mp, ip, 0)))
+		return error;
+
+	error = 0;
+	if (len <= 0)	/* if nothing being freed */
+		return error;
+	rt = (ip->i_d.di_flags & XFS_DIFLAG_REALTIME);
+	startoffset_fsb	= XFS_B_TO_FSB(mp, offset);
+	end_dmi_offset = offset + len;
+	endoffset_fsb = XFS_B_TO_FSBT(mp, end_dmi_offset);
+
+	if (offset < ip->i_d.di_size &&
+	    (attr_flags & ATTR_DMI) == 0 &&
+	    DM_EVENT_ENABLED(XFS_MTOVFS(mp), ip, DM_EVENT_WRITE)) {
+		if (end_dmi_offset > ip->i_d.di_size)
+			end_dmi_offset = ip->i_d.di_size;
+		error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, XFS_ITOV(ip),
+				offset, end_dmi_offset - offset,
+				AT_DELAY_FLAG(attr_flags), NULL);
+		if (error)
+			return(error);
+	}
+
+	if (need_iolock)
+		xfs_ilock(ip, XFS_IOLOCK_EXCL);
+	rounding = MAX((__uint8_t)(1 << mp->m_sb.sb_blocklog),
+			(__uint8_t)NBPP);
+	ilen = len + (offset & (rounding - 1));
+	ioffset = offset & ~(rounding - 1);
+	if (ilen & (rounding - 1))
+		ilen = (ilen + rounding) & ~(rounding - 1);
+	xfs_inval_cached_pages(XFS_ITOV(ip), &(ip->i_iocore), ioffset, 0, 0);
+	/*
+	 * Need to zero the stuff we're not freeing, on disk.
+	 * If its a realtime file & can't use unwritten extents then we
+	 * actually need to zero the extent edges.  Otherwise xfs_bunmapi
+	 * will take care of it for us.
+	 */
+	if (rt && !XFS_SB_VERSION_HASEXTFLGBIT(&mp->m_sb)) {
+		nimap = 1;
+		error = xfs_bmapi(NULL, ip, startoffset_fsb, 1, 0, NULL, 0,
+			&imap, &nimap, NULL);
+		if (error)
+			goto out_unlock_iolock;
+		ASSERT(nimap == 0 || nimap == 1);
+		if (nimap && imap.br_startblock != HOLESTARTBLOCK) {
+			xfs_daddr_t	block;
+
+			ASSERT(imap.br_startblock != DELAYSTARTBLOCK);
+			block = imap.br_startblock;
+			mod = do_div(block, mp->m_sb.sb_rextsize);
+			if (mod)
+				startoffset_fsb += mp->m_sb.sb_rextsize - mod;
+		}
+		nimap = 1;
+		error = xfs_bmapi(NULL, ip, endoffset_fsb - 1, 1, 0, NULL, 0,
+			&imap, &nimap, NULL);
+		if (error)
+			goto out_unlock_iolock;
+		ASSERT(nimap == 0 || nimap == 1);
+		if (nimap && imap.br_startblock != HOLESTARTBLOCK) {
+			ASSERT(imap.br_startblock != DELAYSTARTBLOCK);
+			mod++;
+			if (mod && (mod != mp->m_sb.sb_rextsize))
+				endoffset_fsb -= mod;
+		}
+	}
+	if ((done = (endoffset_fsb <= startoffset_fsb)))
+		/*
+		 * One contiguous piece to clear
+		 */
+		error = xfs_zero_remaining_bytes(ip, offset, offset + len - 1);
+	else {
+		/*
+		 * Some full blocks, possibly two pieces to clear
+		 */
+		if (offset < XFS_FSB_TO_B(mp, startoffset_fsb))
+			error = xfs_zero_remaining_bytes(ip, offset,
+				XFS_FSB_TO_B(mp, startoffset_fsb) - 1);
+		if (!error &&
+		    XFS_FSB_TO_B(mp, endoffset_fsb) < offset + len)
+			error = xfs_zero_remaining_bytes(ip,
+				XFS_FSB_TO_B(mp, endoffset_fsb),
+				offset + len - 1);
+	}
+
+	/*
+	 * free file space until done or until there is an error
+	 */
+	resblks = XFS_DIOSTRAT_SPACE_RES(mp, 0);
+	while (!error && !done) {
+
+		/*
+		 * allocate and setup the transaction
+		 */
+		tp = xfs_trans_alloc(mp, XFS_TRANS_DIOSTRAT);
+		error = xfs_trans_reserve(tp,
+					  resblks,
+					  XFS_WRITE_LOG_RES(mp),
+					  0,
+					  XFS_TRANS_PERM_LOG_RES,
+					  XFS_WRITE_LOG_COUNT);
+
+		/*
+		 * check for running out of space
+		 */
+		if (error) {
+			/*
+			 * Free the transaction structure.
+			 */
+			ASSERT(error == ENOSPC || XFS_FORCED_SHUTDOWN(mp));
+			xfs_trans_cancel(tp, 0);
+			break;
+		}
+		xfs_ilock(ip, XFS_ILOCK_EXCL);
+		error = XFS_TRANS_RESERVE_QUOTA(mp, tp,
+				ip->i_udquot, ip->i_gdquot, resblks, 0, rt ?
+				XFS_QMOPT_RES_RTBLKS : XFS_QMOPT_RES_REGBLKS);
+		if (error)
+			goto error1;
+
+		xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+		xfs_trans_ihold(tp, ip);
+
+		/*
+		 * issue the bunmapi() call to free the blocks
+		 */
+		XFS_BMAP_INIT(&free_list, &firstfsb);
+		error = xfs_bunmapi(tp, ip, startoffset_fsb,
+				  endoffset_fsb - startoffset_fsb,
+				  0, 2, &firstfsb, &free_list, &done);
+		if (error) {
+			goto error0;
+		}
+
+		/*
+		 * complete the transaction
+		 */
+		error = xfs_bmap_finish(&tp, &free_list, firstfsb, &committed);
+		if (error) {
+			goto error0;
+		}
+
+		error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES, NULL);
+		xfs_iunlock(ip, XFS_ILOCK_EXCL);
+	}
+
+ out_unlock_iolock:
+	if (need_iolock)
+		xfs_iunlock(ip, XFS_IOLOCK_EXCL);
+	return error;
+
+ error0:
+	xfs_bmap_cancel(&free_list);
+ error1:
+	xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT);
+	xfs_iunlock(ip, need_iolock ? (XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL) :
+		    XFS_ILOCK_EXCL);
+	return error;
+}
+
+/*
+ * xfs_change_file_space()
+ *      This routine allocates or frees disk space for the given file.
+ *      The user specified parameters are checked for alignment and size
+ *      limitations.
+ *
+ * RETURNS:
+ *       0 on success
+ *      errno on error
+ *
+ */
+int
+xfs_change_file_space(
+	bhv_desc_t	*bdp,
+	int		cmd,
+	xfs_flock64_t	*bf,
+	xfs_off_t	offset,
+	cred_t		*credp,
+	int		attr_flags)
+{
+	int		clrprealloc;
+	int		error;
+	xfs_fsize_t	fsize;
+	xfs_inode_t	*ip;
+	xfs_mount_t	*mp;
+	int		setprealloc;
+	xfs_off_t	startoffset;
+	xfs_off_t	llen;
+	xfs_trans_t	*tp;
+	vattr_t		va;
+	vnode_t		*vp;
+
+	vp = BHV_TO_VNODE(bdp);
+	vn_trace_entry(vp, __FUNCTION__, (inst_t *)__return_address);
+
+	ip = XFS_BHVTOI(bdp);
+	mp = ip->i_mount;
+
+	/*
+	 * must be a regular file and have write permission
+	 */
+	if (vp->v_type != VREG)
+		return XFS_ERROR(EINVAL);
+
+	xfs_ilock(ip, XFS_ILOCK_SHARED);
+
+	if ((error = xfs_iaccess(ip, S_IWUSR, credp))) {
+		xfs_iunlock(ip, XFS_ILOCK_SHARED);
+		return error;
+	}
+
+	xfs_iunlock(ip, XFS_ILOCK_SHARED);
+
+	switch (bf->l_whence) {
+	case 0: /*SEEK_SET*/
+		break;
+	case 1: /*SEEK_CUR*/
+		bf->l_start += offset;
+		break;
+	case 2: /*SEEK_END*/
+		bf->l_start += ip->i_d.di_size;
+		break;
+	default:
+		return XFS_ERROR(EINVAL);
+	}
+
+	llen = bf->l_len > 0 ? bf->l_len - 1 : bf->l_len;
+
+	if (   (bf->l_start < 0)
+	    || (bf->l_start > XFS_MAXIOFFSET(mp))
+	    || (bf->l_start + llen < 0)
+	    || (bf->l_start + llen > XFS_MAXIOFFSET(mp)))
+		return XFS_ERROR(EINVAL);
+
+	bf->l_whence = 0;
+
+	startoffset = bf->l_start;
+	fsize = ip->i_d.di_size;
+
+	/*
+	 * XFS_IOC_RESVSP and XFS_IOC_UNRESVSP will reserve or unreserve
+	 * file space.
+	 * These calls do NOT zero the data space allocated to the file,
+	 * nor do they change the file size.
+	 *
+	 * XFS_IOC_ALLOCSP and XFS_IOC_FREESP will allocate and free file
+	 * space.
+	 * These calls cause the new file data to be zeroed and the file
+	 * size to be changed.
+	 */
+	setprealloc = clrprealloc = 0;
+
+	switch (cmd) {
+	case XFS_IOC_RESVSP:
+	case XFS_IOC_RESVSP64:
+		error = xfs_alloc_file_space(ip, startoffset, bf->l_len,
+								1, attr_flags);
+		if (error)
+			return error;
+		setprealloc = 1;
+		break;
+
+	case XFS_IOC_UNRESVSP:
+	case XFS_IOC_UNRESVSP64:
+		if ((error = xfs_free_file_space(ip, startoffset, bf->l_len,
+								attr_flags)))
+			return error;
+		break;
+
+	case XFS_IOC_ALLOCSP:
+	case XFS_IOC_ALLOCSP64:
+	case XFS_IOC_FREESP:
+	case XFS_IOC_FREESP64:
+		if (startoffset > fsize) {
+			error = xfs_alloc_file_space(ip, fsize,
+					startoffset - fsize, 0, attr_flags);
+			if (error)
+				break;
+		}
+
+		va.va_mask = XFS_AT_SIZE;
+		va.va_size = startoffset;
+
+		error = xfs_setattr(bdp, &va, attr_flags, credp);
+
+		if (error)
+			return error;
+
+		clrprealloc = 1;
+		break;
+
+	default:
+		ASSERT(0);
+		return XFS_ERROR(EINVAL);
+	}
+
+	/*
+	 * update the inode timestamp, mode, and prealloc flag bits
+	 */
+	tp = xfs_trans_alloc(mp, XFS_TRANS_WRITEID);
+
+	if ((error = xfs_trans_reserve(tp, 0, XFS_WRITEID_LOG_RES(mp),
+				      0, 0, 0))) {
+		/* ASSERT(0); */
+		xfs_trans_cancel(tp, 0);
+		return error;
+	}
+
+	xfs_ilock(ip, XFS_ILOCK_EXCL);
+
+	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+	xfs_trans_ihold(tp, ip);
+
+	if ((attr_flags & ATTR_DMI) == 0) {
+		ip->i_d.di_mode &= ~S_ISUID;
+
+		/*
+		 * Note that we don't have to worry about mandatory
+		 * file locking being disabled here because we only
+		 * clear the S_ISGID bit if the Group execute bit is
+		 * on, but if it was on then mandatory locking wouldn't
+		 * have been enabled.
+		 */
+		if (ip->i_d.di_mode & S_IXGRP)
+			ip->i_d.di_mode &= ~S_ISGID;
+
+		xfs_ichgtime(ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+	}
+	if (setprealloc)
+		ip->i_d.di_flags |= XFS_DIFLAG_PREALLOC;
+	else if (clrprealloc)
+		ip->i_d.di_flags &= ~XFS_DIFLAG_PREALLOC;
+
+	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+	xfs_trans_set_sync(tp);
+
+	error = xfs_trans_commit(tp, 0, NULL);
+
+	xfs_iunlock(ip, XFS_ILOCK_EXCL);
+
+	return error;
+}
+
+vnodeops_t xfs_vnodeops = {
+	BHV_IDENTITY_INIT(VN_BHV_XFS,VNODE_POSITION_XFS),
+	.vop_open		= xfs_open,
+	.vop_read		= xfs_read,
+#ifdef HAVE_SENDFILE
+	.vop_sendfile		= xfs_sendfile,
+#endif
+	.vop_write		= xfs_write,
+	.vop_ioctl		= xfs_ioctl,
+	.vop_getattr		= xfs_getattr,
+	.vop_setattr		= xfs_setattr,
+	.vop_access		= xfs_access,
+	.vop_lookup		= xfs_lookup,
+	.vop_create		= xfs_create,
+	.vop_remove		= xfs_remove,
+	.vop_link		= xfs_link,
+	.vop_rename		= xfs_rename,
+	.vop_mkdir		= xfs_mkdir,
+	.vop_rmdir		= xfs_rmdir,
+	.vop_readdir		= xfs_readdir,
+	.vop_symlink		= xfs_symlink,
+	.vop_readlink		= xfs_readlink,
+	.vop_fsync		= xfs_fsync,
+	.vop_inactive		= xfs_inactive,
+	.vop_fid2		= xfs_fid2,
+	.vop_rwlock		= xfs_rwlock,
+	.vop_rwunlock		= xfs_rwunlock,
+	.vop_bmap		= xfs_bmap,
+	.vop_reclaim		= xfs_reclaim,
+	.vop_attr_get		= xfs_attr_get,
+	.vop_attr_set		= xfs_attr_set,
+	.vop_attr_remove	= xfs_attr_remove,
+	.vop_attr_list		= xfs_attr_list,
+	.vop_link_removed	= (vop_link_removed_t)fs_noval,
+	.vop_vnode_change	= (vop_vnode_change_t)fs_noval,
+	.vop_tosspages		= fs_tosspages,
+	.vop_flushinval_pages	= fs_flushinval_pages,
+	.vop_flush_pages	= fs_flush_pages,
+	.vop_release		= xfs_release,
+	.vop_iflush		= xfs_inode_flush,
+};